diff --git a/local/recipes/libs/cairo/recipe.toml b/local/recipes/libs/cairo/recipe.toml index 5dc76add5a..1bcff13fcc 100644 --- a/local/recipes/libs/cairo/recipe.toml +++ b/local/recipes/libs/cairo/recipe.toml @@ -3,9 +3,14 @@ name = "cairo" version = "1.18.4" [source] -tar = "https://www.cairographics.org/releases/cairo-1.18.4.tar.xz" -blake3 = "b9fa14e02f85ec4e72396c62236c98502d04dbbdf8daf01ab9557a1c7aa7106e" -patches = ["redox.patch"] +# Vendored local fork (full-fork model): builds from the committed source/ +# tree (offline, reproducible). source/ = pristine upstream + the patches below +# BAKED IN. .patch files kept tracked so a version bump can re-apply them via +# sync-recipe-source.sh. +# upstream: https://www.cairographics.org/releases/cairo-1.18.4.tar.xz +# blake3: b9fa14e02f85ec4e72396c62236c98502d04dbbdf8daf01ab9557a1c7aa7106e +# patch (baked): redox.patch +path = "source" [build] dependencies = [ diff --git a/local/recipes/libs/cairo/source.tar b/local/recipes/libs/cairo/source.tar new file mode 100644 index 0000000000..4a31803c0b Binary files /dev/null and b/local/recipes/libs/cairo/source.tar differ diff --git a/local/recipes/libs/cairo/source/.gitignore b/local/recipes/libs/cairo/source/.gitignore new file mode 100644 index 0000000000..794b542e2c --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitignore @@ -0,0 +1,41 @@ +.deps +.libs +.perf +.idea +cairo-*.*.* +manual-*.*.* +ChangeLog* +Makefile +Makefile.in +aclocal.m4 +autom4te.cache +confdefs.h +config.cache +config.h +config.h.in +config.status +configure +configure.scan +conftest.c +conftest.err +conftest.i +doltcompile +doltlibtool +gtk-doc.make +libtool +releases +stamp-h +stamp-h1 +stamp-h.in +compile_commands.json +*~ +.*.sw? +*.la +*.lo +*.log +*.orig +*.rej +*-uninstalled.pc +.vimrc +gtk-doc.m4 +/builddir diff --git a/local/recipes/libs/cairo/source/.gitlab-ci.yml b/local/recipes/libs/cairo/source/.gitlab-ci.yml new file mode 100644 index 0000000000..3c26742a96 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci.yml @@ -0,0 +1,537 @@ +# -*- indent-tabs-mode: nil -*- +include: + - template: 'Workflows/Branch-Pipelines.gitlab-ci.yml' + - project: 'freedesktop/ci-templates' + ref: '98b1218f146a1ec96d65e3ce0041f9a6ec5cb5e6' + file: '/templates/fedora.yml' + +# From https://gitlab.freedesktop.org/freedesktop/ci-templates/-/blob/master/src/gitlab-ci.tmpl +workflow: + rules: + - if: '$CI_PIPELINE_SOURCE == "merge_request_event"' + - if: '$CI_COMMIT_BRANCH && $CI_OPEN_MERGE_REQUESTS' + when: never + - if: $CI_COMMIT_BRANCH + +variables: + FDO_UPSTREAM_REPO: 'cairo/cairo' + FDO_DISTRIBUTION_VERSION: '40' + FDO_DISTRIBUTION_TAG: '2024-07-26-coverage.0' + + # TODO: should probably get its own image at some point instead of reusing the GStreamer one + # See https://gitlab.freedesktop.org/gstreamer/gstreamer/-/blob/main/.gitlab-image-tags.yml for latest + # (This one is from the lastest stable branch since it's likely to stay around unchanged for longer) + WINDOWS_IMAGE: "registry.freedesktop.org/gstreamer/gstreamer/amd64/windows:2024-03-05.0-1.24" + + DEFAULT_MESON_ARGS: > + --default-library=both + + RUST_STABLE: "1.80.0" + RUSTUP_VERSION: "1.27.1" + +stages: + - prep + - build + - test + - analysis + - deploy + +# Global CI policy: This can be used to configure global behaviour our our jobs +default: + retry: + max: 2 + when: + - 'runner_system_failure' + - 'stuck_or_timeout_failure' + - 'scheduler_failure' + - 'api_failure' + interruptible: true + +.ccache_setup: + variables: + CCACHE_BASEDIR: "$CI_PROJECT_DIR" + CCACHE_DIR: "$CI_PROJECT_DIR/ccache" + CC: "ccache gcc" + CXX: "ccache g++" + before_script: + - mkdir -p ccache + - ccache --show-stats + cache: + # Each job will have it's own cache + key: "$CI_JOB_NAME" + paths: + - ccache/ + +fedora image: + extends: + - '.fdo.container-build@fedora' + stage: 'prep' + variables: + FDO_DISTRIBUTION_PACKAGES: > + meson + ninja-build + ccache + gcc + g++ + zlib-devel + expat-devel + libpng-devel + fontconfig-devel + freetype-devel + libX11-devel + libXrender-devel + glib2-devel + librsvg2-devel + gtk2-devel + poppler-glib-devel + libspectre-devel + ghostscript + pixman-devel + systemd-devel + systemd-udev + expat-devel + which + diffutils + xorg-x11-server-Xvfb + dejavu-sans-fonts + dejavu-sans-mono-fonts + dejavu-serif-fonts + google-noto-emoji-color-fonts + google-noto-sans-vf-fonts + fonttools + util-linux + poppler-utils + clang + clang-analyzer + clang-tools-extra + compiler-rt + libasan + libubsan + llvm + wget + FDO_DISTRIBUTION_EXEC: >- + bash .gitlab-ci/install-rust.sh --rustup-version ${RUSTUP_VERSION} \ + --stable ${RUST_STABLE} \ + --arch x86_64-unknown-linux-gnu && + bash .gitlab-ci/install-rust-tools.sh && + bash .gitlab-ci/install-grcov.sh && + rm -rf /root/.cargo /root/.cache # cleanup compilation dirs; binaries are installed now + +.build fedora: + extends: + - '.fdo.distribution-image@fedora' + - '.ccache_setup' + stage: 'build' + variables: + MESON_ARGS: > + ${DEFAULT_MESON_ARGS} + ${EXTRA_MESON_ARGS} + --werror + CFLAGS: '-Wno-error=deprecated-declarations' + script: + - meson setup ${MESON_ARGS} builddir + - meson compile -C builddir + + # Run test scripts + - mkdir builddir/src/.libs + - touch builddir/src/.libs/libfoo.so + # Run all the tests, except for the big test executable which + # gets run separately + - meson test -C builddir --no-suite=slow --print-errorlogs + + - meson install -C builddir + artifacts: + expire_in: "7 days" + when: "always" + paths: + - "*" + +fedora build shared: + extends: + - '.build fedora' + variables: + EXTRA_MESON_ARGS: '--default-library=shared' + +fedora build static: + extends: + - '.build fedora' + variables: + EXTRA_MESON_ARGS: '--default-library=static' + +fedora build clang: + extends: + - '.build fedora' + variables: + EXTRA_MESON_ARGS: '--default-library=shared' + script: + - export CC=clang + - meson setup ${MESON_ARGS} builddir + - meson compile -C builddir + +.test fedora: + dependencies: + - 'fedora build shared' + needs: + - 'fedora build shared' + extends: + - '.fdo.distribution-image@fedora' + - '.ccache_setup' + stage: 'test' + artifacts: + when: 'always' + expire_in: "7 days" + paths: + - builddir/meson-logs/* + - builddir/test/*.log + - builddir/test/pdiff/*.log + - builddir/test/output + exclude: + - "builddir/test/**/*.cs" + - "builddir/test/**/*.trace" + +fedora build check-refs.sh: + extends: '.test fedora' + script: + # Check for duplicate reference images + - ./test/check-refs.sh "$(pwd)/builddir/test/pdiff/perceptualdiff" + +test fedora pdf: + extends: '.test fedora' + script: + - export CAIRO_TEST_IGNORE_pdf_argb32=$(tr '\n' ',' < .gitlab-ci/ignore-pdf-argb32.txt) + - export CAIRO_TEST_IGNORE_pdf_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-pdf-rgb24.txt) + - export CAIRO_TEST_TARGET=pdf + - export srcdir=../../test + - (cd builddir/test && xvfb-run ./cairo-test-suite) + +test fedora ps2: + extends: '.test fedora' + script: + - export CAIRO_TEST_IGNORE_ps2_argb32=$(tr '\n' ',' < .gitlab-ci/ignore-ps2-argb32.txt) + - export CAIRO_TEST_IGNORE_ps2_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-ps2-rgb24.txt) + - export CAIRO_TEST_TARGET=ps2 + - export CAIRO_TEST_UGLY_HACK_TO_IGNORE_PS_FAILURES=1 + - export srcdir=../../test + - (cd builddir/test && xvfb-run ./cairo-test-suite) + +test fedora ps3: + extends: '.test fedora' + script: + - export CAIRO_TEST_IGNORE_ps3_argb32=$(tr '\n' ',' < .gitlab-ci/ignore-ps3-argb32.txt) + - export CAIRO_TEST_IGNORE_ps3_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-ps3-rgb24.txt) + - export CAIRO_TEST_TARGET=ps3 + - export CAIRO_TEST_UGLY_HACK_TO_IGNORE_PS_FAILURES=1 + - export srcdir=../../test + - (cd builddir/test && xvfb-run ./cairo-test-suite) + +test fedora script: + extends: '.test fedora' + script: + - export CAIRO_TEST_UGLY_HACK_TO_SOMETIMES_IGNORE_SCRIPT_XCB_HUGE_IMAGE_SHM=1 + - export CAIRO_TEST_IGNORE_script_argb32=$(tr '\n' ',' < .gitlab-ci/ignore-script-argb32.txt) + - export CAIRO_TEST_TARGET=script + - export srcdir=../../test + - (cd builddir/test && xvfb-run ./cairo-test-suite) + +test fedora image: + extends: '.test fedora' + script: + - export CAIRO_TEST_IGNORE_image_argb32=$(tr '\n' ',' < .gitlab-ci/ignore-image-argb32.txt) + - export CAIRO_TEST_IGNORE_image_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-image-rgb24.txt) + - export CAIRO_TEST_IGNORE_image16_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-image16-rgb24.txt) + - export CAIRO_TEST_TARGET=image,image16 + - export srcdir=../../test + - (cd builddir/test && xvfb-run ./cairo-test-suite) + +test fedora recording: + extends: '.test fedora' + script: + - export CAIRO_TEST_IGNORE_recording_argb32=$(tr '\n' ',' < .gitlab-ci/ignore-recording-argb32.txt) + - export CAIRO_TEST_IGNORE_recording_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-recording-rgb24.txt) + - export CAIRO_TEST_TARGET=recording + - export srcdir=../../test + - (cd builddir/test && xvfb-run ./cairo-test-suite) + +test fedora svg: + extends: '.test fedora' + script: + - export CAIRO_TEST_IGNORE_svg11_argb32=$(tr '\n' ',' < .gitlab-ci/ignore-svg11-argb32.txt) + - export CAIRO_TEST_IGNORE_svg11_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-svg11-rgb24.txt) + - export CAIRO_TEST_TARGET=svg11 + - export CAIRO_BOILERPLATE_OPEN_NO_DAEMON=1 + - export CAIRO_BOILERPLATE_DO_NOT_CRASH_ON_ANY2PPM_ERROR=1 + - export ANY2PPM="timeout 3m ./any2ppm" + - ulimit -S -s 131072 + - export srcdir=../../test + - (cd builddir/test && xvfb-run ./cairo-test-suite) + +test fedora xcb: + extends: '.test fedora' + script: + - export CAIRO_TEST_IGNORE_xcb_argb32=$(tr '\n' ',' < .gitlab-ci/ignore-xcb-argb32.txt) + - export CAIRO_TEST_IGNORE_xcb_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-xcb-rgb24.txt) + - export CAIRO_TEST_IGNORE_xcb_window_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-xcb-window-rgb24.txt) + - export CAIRO_TEST_IGNORE_xcb_window__rgb24=$(tr '\n' ',' < '.gitlab-ci/ignore-xcb-window&-rgb24.txt') + - export CAIRO_TEST_IGNORE_xcb_render_0_0_argb32=$(tr '\n' ',' < .gitlab-ci/ignore-xcb-render-0-0-argb32.txt) + - export CAIRO_TEST_IGNORE_xcb_render_0_0_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-xcb-render-0-0-rgb24.txt) + - export CAIRO_TEST_IGNORE_xcb_fallback_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-xcb-fallback-rgb24.txt) + - export CAIRO_TEST_TARGET="xcb,xcb-window,xcb-window&,xcb-render-0_0,xcb-fallback" + - export srcdir=../../test + - (cd builddir/test && xvfb-run ./cairo-test-suite) + +test fedora xlib: + extends: '.test fedora' + script: + - export CAIRO_TEST_IGNORE_xlib_argb32=$(tr '\n' ',' < .gitlab-ci/ignore-xlib-argb32.txt) + - export CAIRO_TEST_IGNORE_xlib_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-xlib-rgb24.txt) + - export CAIRO_TEST_IGNORE_xlib_window_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-xlib-window-rgb24.txt) + - export CAIRO_TEST_IGNORE_xlib_render_0_0_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-xlib-render-0-0-rgb24.txt) + - export CAIRO_TEST_IGNORE_xlib_fallback_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-xlib-fallback-rgb24.txt) + - export CAIRO_TEST_TARGET="xlib,xlib-window,xlib-render-0_0,xlib-fallback" + - export srcdir=../../test + - (cd builddir/test && xvfb-run ./cairo-test-suite) + +mingw-32 build: + extends: + - '.fdo.distribution-image@fedora' + stage: 'build' + before_script: + - dnf install -y 'dnf-command(builddep)' + - dnf builddep -y mingw32-cairo + - dnf install -y mingw32-gcc-c++ + script: + - mkdir builddir + - cd builddir + # Test building with FreeType enabled and Fontconfig disabled + - mingw32-meson --default-library=both -Dfontconfig=disabled + - ninja install + artifacts: + expire_in: "7 days" + when: "always" + paths: + - 'builddir/meson-logs/' + +mingw-64 build: + extends: + - '.fdo.distribution-image@fedora' + stage: 'build' + before_script: + - dnf install -y 'dnf-command(builddep)' + - dnf builddep -y mingw64-cairo + - dnf install -y mingw64-gcc-c++ + script: + - mkdir builddir + - cd builddir + - mingw64-meson --default-library=both + - ninja install + artifacts: + expire_in: "7 days" + when: "always" + paths: + - 'builddir/meson-logs/' + +# Based on https://gitlab.freedesktop.org/gstreamer/gstreamer/-/blob/main/.gitlab-ci.yml (.build windows) +.build windows: + image: $WINDOWS_IMAGE + stage: 'build' + tags: + - 'docker' + - 'windows' + - '2022' + timeout: '30min' + variables: + MESON_ARGS: > + ${DEFAULT_MESON_ARGS} + -Dfontconfig=enabled + -Dfreetype=enabled + -Dglib=enabled + -Dzlib=enabled + ${EXTRA_MESON_ARGS} + before_script: + # Make sure meson is up to date, latest fontconfig requires a newer Meson than what's on the image + - pip3 install -U meson + script: + # Make sure powershell exists on errors + # https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_preference_variables?view=powershell-6 + - $ErrorActionPreference = "Stop" + + # Copy GLib from existing subproject cache to avoid downloading it + # FIXME: no longer cached in GStreamer image, using tarball for now + #- cd $env:CI_PROJECT_DIR + #- cp -r C:/subprojects/glib subprojects/ + + # For some reason, options are separated by newline instead of space, so we + # have to replace them first. + - $env:MESON_ARGS = $env:MESON_ARGS.replace("`n"," ") + + # Gitlab executes PowerShell in docker, but VsDevCmd.bat is a batch script. + # Environment variables substitutions is done by PowerShell before calling + # cmd.exe, that's why we use $env:FOO instead of %FOO% + - cmd.exe /C "C:\BuildTools\Common7\Tools\VsDevCmd.bat -host_arch=amd64 -arch=$env:ARCH && + meson subprojects update --reset && + meson build $env:MESON_ARGS && + ninja -C build" + artifacts: + expire_in: "7 days" + when: "always" + paths: + - 'build/meson-logs/' + +vs2019 shared amd64: + extends: '.build windows' + variables: + ARCH: 'amd64' + EXTRA_MESON_ARGS: '--default-library=shared' + +vs2019 static amd64: + extends: '.build windows' + variables: + ARCH: 'amd64' + EXTRA_MESON_ARGS: '--default-library=static' + +vs2019 shared x86: + extends: '.build windows' + variables: + ARCH: 'x86' + EXTRA_MESON_ARGS: '--default-library=shared' + +android arm64 fedora: + # TODO: should probably build our own image here some day + # See https://gitlab.freedesktop.org/gstreamer/gstreamer/container_registry/7689 for current images + image: 'registry.freedesktop.org/gstreamer/gstreamer/amd64/android-fedora:2020-10-22.0-master' + stage: 'build' + artifacts: + name: "${CI_JOB_NAME}_${CI_COMMIT_SHA}" + expire_in: '5 days' + when: 'always' + paths: + - "build/meson-logs/*.txt" + before_script: + - dnf install -y python3-pip gcc ninja-build gperf + - pip3 install --user meson + script: + - export PATH="$HOME/.local/bin:$PATH" + - | + cat > android-cross-file.txt < + --buildtype=debug + script: + - meson setup ${MESON_ARGS} _scan_build . + - ninja -C _scan_build scan-build + artifacts: + name: "cairo-${CI_JOB_NAME}-${CI_COMMIT_REF_NAME}" + when: always + paths: + - "_scan_build/meson-logs/scanbuild" + +coverage: + stage: 'analysis' + extends: + - '.fdo.distribution-image@fedora' + needs: + - job: 'fedora image' + artifacts: false + script: + - source ./.gitlab-ci/env.sh + - bash -x ./.gitlab-ci/build-with-coverage.sh + - bash -x ./.gitlab-ci/gen-coverage.sh + coverage: '/Coverage: \d+\.\d+/' + artifacts: + name: "cairo-${CI_JOB_NAME}-${CI_COMMIT_REF_NAME}" + expire_in: 2 days + when: always + reports: + coverage_report: + coverage_format: cobertura + path: public/coverage.xml + paths: + - "_build/meson-logs" + - public + +pages: + stage: 'deploy' + needs: + - job: coverage + script: + - mkdir -p public + - cp .gitlab-ci/pages-index.html public/index.html + artifacts: + paths: + - public + expire_in: 1 day + rules: + # Restrict to the main branch so not every branch tries to deploy the web site + - if: ($CI_DEFAULT_BRANCH == $CI_COMMIT_BRANCH) diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/build-with-coverage.sh b/local/recipes/libs/cairo/source/.gitlab-ci/build-with-coverage.sh new file mode 100644 index 0000000000..ed867986d2 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/build-with-coverage.sh @@ -0,0 +1,17 @@ +#!/bin/sh + +set -eux -o pipefail + +export CFLAGS="-coverage -ftest-coverage -fprofile-arcs" + +export CAIRO_TEST_IGNORE_image_argb32=$(tr '\n' ',' < .gitlab-ci/ignore-image-argb32.txt) +export CAIRO_TEST_IGNORE_image_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-image-rgb24.txt) +export CAIRO_TEST_IGNORE_image16_rgb24=$(tr '\n' ',' < .gitlab-ci/ignore-image16-rgb24.txt) +export CAIRO_TEST_TARGET=image,image16 + +meson setup --buildtype=debug _build . +meson compile -C _build + +export srcdir=../../test +cd _build/test +xvfb-run ./cairo-test-suite diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/env.sh b/local/recipes/libs/cairo/source/.gitlab-ci/env.sh new file mode 100644 index 0000000000..b5761529f8 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/env.sh @@ -0,0 +1,2 @@ +export RUSTUP_HOME='/usr/local/rustup' +export PATH=$PATH:/usr/local/cargo/bin diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/gen-coverage.sh b/local/recipes/libs/cairo/source/.gitlab-ci/gen-coverage.sh new file mode 100644 index 0000000000..cfc78e2407 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/gen-coverage.sh @@ -0,0 +1,14 @@ +#!/bin/sh + +set -eux -o pipefail + +mkdir -p public +grcov _build --source-dir ./ --prefix-dir ../ --output-type cobertura --branch --ignore-not-existing -o public/coverage.xml +grcov _build --source-dir ./ --prefix-dir ../ --output-type html --branch --ignore-not-existing -o public/coverage + +# Print "Coverage: 42.42" so .gitlab-ci.yml will pick it up with a regex +# +# We scrape this from the HTML report, not the JSON summary, because coverage.json +# uses no decimal places, just something like "42%". + +grep -Eo 'abbr title.* %' public/coverage/index.html | head -n 1 | grep -Eo '[0-9.]+ %' | grep -Eo '[0-9.]+' | awk '{ print "Coverage:", $1 }' diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-image-argb32.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-image-argb32.txt new file mode 100644 index 0000000000..c5b96d732d --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-image-argb32.txt @@ -0,0 +1,21 @@ +clip-text +culled-glyphs +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +halo-transform +overlapping-glyphs +record1414x-select-font-face +record1414x-text-transform +show-glyphs-advance +subsurface +subsurface-scale +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +text-rotate +text-unhinted-metrics +user-font-mask diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-image-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-image-rgb24.txt new file mode 100644 index 0000000000..3c90818b90 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-image-rgb24.txt @@ -0,0 +1,73 @@ +a1-clip-fill-rule +big-empty-box +big-empty-triangle +big-little-box +bitmap-font +bug-361 +bug-431 +bug-source-cu +clip-device-offset +clip-fill-rule-pixel-aligned +clip-text +culled-glyphs +dash-zero-length +degenerate-path +device-offset +device-offset-positive +extended-blend-alpha-mask +fill-and-stroke +fill-empty +fill-missed-stop +finer-grained-fallbacks +ft-color-font +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +gradient-alpha +gradient-constant-alpha +gradient-zero-stops +gradient-zero-stops-mask +halo-transform +image-surface-source +linear-gradient-one-stop +mask-ctm +mask-surface-ctm +new-sub-path +nil-surface +overlapping-boxes +overlapping-glyphs +pass-through +pdf-surface-source +pixman-downscale-best-24 +pixman-rotate +ps-surface-source +radial-gradient-source +record1414x-select-font-face +record1414x-text-transform +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +rel-path +scale-source-surface-paint +set-source +shifted-operator +show-glyphs-advance +source-surface-scale-paint +subsurface +subsurface-outside-target +subsurface-scale +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +text-rotate +text-unhinted-metrics +thin-lines +user-font-mask +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-image16-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-image16-rgb24.txt new file mode 100644 index 0000000000..418275a30b --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-image16-rgb24.txt @@ -0,0 +1,283 @@ +a1-bug +a1-clip-fill-rule +a1-tiger +aliasing +arc-direction +arc-looping-dash +big-empty-box +big-empty-triangle +big-line +big-little-box +bitmap-font +bug-84115 +bug-bo-ricotz +bug-extents +bug-image-compositor +bug-seams +bug-source-cu +bug-spline +caps +caps-05 +caps-2 +caps-joins-2 +caps-joins-alpha +caps-joins-curve +caps-tails-curve +clear-source +clip-device-offset +clip-disjoint +clip-disjoint-quad +clip-fill +clip-fill-eo-unbounded +clip-fill-nz-unbounded +clip-fill-rule-pixel-aligned +clip-image +clip-intersect +clip-operator +clip-push-group +clip-shape +clip-stroke +clip-stroke-unbounded +clip-text +clip-twice +close-path-current-point +copy-path +coverage-abutting +coverage-column-triangles +coverage-intersecting-quads +coverage-intersecting-triangles +coverage-rectangles +coverage-rhombus +coverage-row-triangles +coverage-triangles +culled-glyphs +dash-caps-joins +dash-curve +dash-scale +dash-state +dash-zero-length +degenerate-arc +degenerate-curve-to +degenerate-path +degenerate-pen +degenerate-rel-curve-to +device-offset +device-offset-positive +drunkard-tails +extended-blend +extended-blend-alpha +extended-blend-alpha-mask +extended-blend-mask +extended-blend-solid +extended-blend-solid-alpha +extend-pad-border +fallback +fill-alpha +fill-alpha-pattern +fill-and-stroke +fill-and-stroke-alpha +fill-and-stroke-alpha-add +fill-degenerate-sort-order +fill-empty +fill-image +fill-missed-stop +fill-rule +filter-bilinear-extents +finer-grained-fallbacks +font-matrix-translation +ft-show-glyphs-positioning +ft-show-glyphs-table +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +glyph-cache-pressure +gradient-alpha +gradient-constant-alpha +gradient-zero-stops +gradient-zero-stops-mask +group-unaligned +halo +halo-transform +hatchings +huge-linear +huge-radial +inverse-text +joins +joins-loop +joins-retrace +joins-star +large-font +large-twin-antialias-mixed +leaky-dashed-stroke +linear-gradient +linear-gradient-one-stop +linear-gradient-reflect +linear-gradient-subset +line-width-overlap-offset +line-width-scale +long-dashed-lines +mask +mask-alpha +mask-ctm +mask-surface-ctm +mask-transformed-image +mask-transformed-similar +mesh-pattern +mesh-pattern-conical +mesh-pattern-control-points +mesh-pattern-fold +mesh-pattern-overlap +mesh-pattern-transformed +new-sub-path +nil-surface +operator-source +over-around-source +overlapping-boxes +overlapping-dash-caps +overlapping-glyphs +paint-source-alpha +paint-with-alpha +paint-with-alpha-clip +paint-with-alpha-clip-mask +partial-coverage-reference +partial-coverage-three-quarter-reference +pass-through +path-append +path-stroke-twice +pdf-isolated-group +pixman-downscale-best-24 +pixman-downscale-best-96 +pixman-downscale-bilinear-96 +pixman-downscale-fast-96 +pixman-downscale-good-96 +pixman-downscale-nearest-96 +pixman-rotate +pthread-same-source +pthread-show-text +push-group +push-group-color +radial-gradient +radial-gradient-mask +radial-gradient-mask-source +radial-gradient-source +random-clip +random-intersections-curves-eo +random-intersections-curves-nz +random-intersections-eo +random-intersections-nonzero +raster-source +record1414x-fill-alpha +record1414x-paint-alpha +record1414x-paint-alpha-clip +record1414x-paint-alpha-clip-mask +record1414x-select-font-face +record1414x-text-transform +record2x-fill-alpha +record2x-paint-alpha +record2x-paint-alpha-clip +record2x-paint-alpha-clip-mask +record2x-select-font-face +record2x-text-transform +record90-fill-alpha +record90-paint-alpha +record90-paint-alpha-clip +record90-paint-alpha-clip-mask +record90-select-font-face +record90-text-transform +record-fill-alpha +recordflip-fill-alpha +recordflip-paint-alpha +recordflip-paint-alpha-clip +recordflip-paint-alpha-clip-mask +recordflip-select-font-face +recordflip-text-transform +recordflip-whole-fill-alpha +recordflip-whole-paint-alpha +recordflip-whole-paint-alpha-clip +recordflip-whole-paint-alpha-clip-mask +recordflip-whole-select-font-face +recordflip-whole-text-transform +recording-surface-extend-none +recording-surface-extend-reflect +recording-surface-extend-repeat +recording-surface-over +recording-surface-source +record-mesh +record-neg-extents-bounded +record-neg-extents-unbounded +record-paint-alpha +record-paint-alpha-clip +record-paint-alpha-clip-mask +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +record-select-font-face +record-text-transform +rectilinear-dash-scale-unaligned +reflected-stroke +rel-path +rotate-clip-image-surface-paint +rotated-clip +rounded-rectangle-fill +rounded-rectangle-stroke +scale-offset-image +scale-offset-similar +scale-source-surface-paint +select-font-face +set-source +shape-general-convex +shape-sierpinski +shifted-operator +show-glyphs-advance +show-text-current-point +simple-edge +smask +smask-fill +smask-mask +smask-paint +smask-stroke +smask-text +source-surface-scale-paint +spline-decomposition +stroke-ctm-caps +stroke-image +stroke-pattern +subsurface +subsurface-outside-target +subsurface-scale +surface-pattern +surface-pattern-operator +surface-pattern-scale-down +surface-pattern-scale-up +text-antialias-gray +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-glyph-range +text-pattern +text-rotate +text-transform +text-unhinted-metrics +thin-lines +tiger +tighten-bounds +transforms +trap-clip +twin +twin-antialias-gray +twin-antialias-mixed +twin-antialias-subpixel +unbounded-operator +unclosed-strokes +user-font +user-font-mask +user-font-proxy +user-font-rescale +world-map +world-map-fill +world-map-stroke +xcb-huge-image-shm +xcb-huge-subimage +xcomposite-projection diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-pdf-argb32.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-pdf-argb32.txt new file mode 100644 index 0000000000..b3be4e9aea --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-pdf-argb32.txt @@ -0,0 +1,49 @@ +bug-image-compositor +clear-source +clip-operator +clip-text +culled-glyphs +extended-blend +extended-blend-solid +fallback +filter-bilinear-extents +filter-nearest-offset +filter-nearest-transformed +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +halo-transform +huge-linear +huge-radial +linear-gradient-reflect +mask +overlapping-glyphs +pixman-downscale-best-95 +pixman-downscale-fast-95 +pixman-downscale-nearest-95 +pthread-same-source +pthread-show-text +radial-gradient +radial-gradient-mask +radial-gradient-mask-source +radial-gradient-one-stop +radial-gradient-source +record1414x-select-font-face +record1414x-text-transform +record2x-text-transform +record-replay-extend-reflect +rectilinear-dash +rectilinear-stroke +rotate-clip-image-surface-paint +rotate-image-surface-paint +show-glyphs-advance +smask-text +surface-pattern +surface-pattern-operator +surface-pattern-scale-down +text-pattern +text-rotate +text-unhinted-metrics +thin-lines +twin +user-font-rescale diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-pdf-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-pdf-rgb24.txt new file mode 100644 index 0000000000..d0e31a95d5 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-pdf-rgb24.txt @@ -0,0 +1,88 @@ +big-empty-box +big-empty-triangle +big-little-box +bitmap-font +bug-361 +bug-image-compositor +clear-source +clip-device-offset +clip-fill-rule-pixel-aligned +clip-text +culled-glyphs +device-offset +device-offset-positive +extended-blend-alpha-mask +fill-empty +filter-bilinear-extents +filter-nearest-offset +filter-nearest-transformed +ft-color-font +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +gradient-zero-stops +gradient-zero-stops-mask +halo-transform +huge-linear +huge-radial +image-surface-source +linear-gradient-one-stop +linear-gradient-reflect +mask +mask-ctm +mask-surface-ctm +nil-surface +overlapping-boxes +overlapping-glyphs +pass-through +pdf-surface-source +pixman-downscale-best-95 +pixman-downscale-fast-95 +pixman-downscale-nearest-95 +pixman-rotate +ps-surface-source +pthread-same-source +pthread-show-text +radial-gradient +radial-gradient-mask +radial-gradient-mask-source +radial-gradient-one-stop +radial-gradient-source +random-intersections-curves-eo +random-intersections-curves-nz +record1414x-paint-alpha +record1414x-paint-alpha-clip +record1414x-paint-alpha-clip-mask +record1414x-select-font-face +record1414x-text-transform +record2x-paint-alpha-clip-mask +record2x-select-font-face +record2x-text-transform +record90-paint-alpha-clip +record90-select-font-face +recordflip-select-font-face +recordflip-whole-select-font-face +recordflip-whole-self-intersecting +recordflip-whole-text-transform +record-paint-alpha-clip +record-replay-extend-pad +record-select-font-face +rectilinear-dash +rectilinear-stroke +rel-path +rotate-clip-image-surface-paint +rotate-image-surface-paint +set-source +show-glyphs-advance +smask-text +source-surface-scale-paint +surface-pattern +surface-pattern-scale-down +text-pattern +text-rotate +text-unhinted-metrics +thin-lines +twin +user-font-rescale +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-ps2-argb32.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-ps2-argb32.txt new file mode 100644 index 0000000000..75c599fc40 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-ps2-argb32.txt @@ -0,0 +1,207 @@ +arc-direction +arc-looping-dash +bug-448 +bug-51910 +bug-bo-ricotz +bug-extents +bug-spline +caps +caps-05 +caps-1 +caps-2 +caps-joins +caps-joins-05 +caps-joins-1 +caps-joins-2 +caps-joins-curve +caps-sub-paths +caps-tails-curve +clear-source +clip-complex-bug61592 +clip-disjoint +clip-fill +clip-fill-rule +clip-group-shapes-circles +clip-image +clip-nesting +clip-push-group +clip-rotate-image-surface-paint +clip-shape +clip-stroke +clip-text +clip-twice +clip-unbounded +close-path +close-path-current-point +copy-path +culled-glyphs +curve-to-as-line-to +dash-caps-joins +dash-curve +dash-infinite-loop +dash-no-dash +dash-offset +dash-offset-negative +dash-scale +dash-state +dash-zero-length +degenerate-arc +degenerate-curve-to +degenerate-dash +degenerate-path +degenerate-pen +degenerate-rel-curve-to +degenerate-solid-dash +drunkard-tails +extend-reflect +extend-reflect-similar +extended-blend +extended-blend-alpha-mask +extended-blend-solid +fallback +fill-and-stroke +fill-degenerate-sort-order +fill-image +fill-rule +filter-nearest-offset +finer-grained-fallbacks +font-matrix-translation +ft-color-font +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +group-unaligned +hairline +hairline-anisotropic +hairline-anisotropic-incorrect +hairline-big +hairline-scaled +halo +halo-transform +horizontal-clip +inverse-text +joins +joins-loop +joins-retrace +joins-star +large-font +leaky-dash +leaky-dashed-rectangle +leaky-dashed-stroke +leaky-polygon +line-width +line-width-large-overlap-dashed +line-width-overlap +line-width-overlap-dashed +line-width-overlap-flipped +line-width-overlap-flopped +line-width-overlap-offset +line-width-scale +line-width-tolerance +long-dashed-lines +miter-precision +new-sub-path +operator-www +over-above-source +over-around-source +over-below-source +over-between-source +overlapping-glyphs +path-append +path-stroke-twice +pixman-downscale-fast-95 +pixman-downscale-nearest-95 +pixman-rotate +pthread-same-source +radial-gradient +radial-gradient-mask +radial-gradient-mask-source +random-clip +random-intersections-curves-eo +random-intersections-curves-nz +random-intersections-eo +random-intersections-nonzero +record-extend-reflect +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-reflect +record-replay-extend-repeat +record-select-font-face +record-self-intersecting +record-text-transform +record1414x-fill-alpha +record1414x-select-font-face +record1414x-self-intersecting +record1414x-text-transform +record2x-select-font-face +record2x-self-intersecting +record2x-text-transform +record90-select-font-face +record90-self-intersecting +record90-text-transform +recordflip-select-font-face +recordflip-self-intersecting +recordflip-text-transform +recordflip-whole-select-font-face +recordflip-whole-self-intersecting +recordflip-whole-text-transform +rectilinear-dash +rectilinear-dash-scale +rectilinear-dash-scale-unaligned +rectilinear-grid +rectilinear-miter-limit +rectilinear-stroke +reflected-stroke +rotate-clip-image-surface-paint +rotate-image-surface-paint +rotate-stroke-box +rotated-clip +round-join-bug-520-bevel +round-join-bug-520-round +rounded-rectangle-fill +rounded-rectangle-stroke +scale-offset-image +scale-offset-similar +self-copy-overlap +stroke-ctm-caps +stroke-clipped +stroke-image +stroke-open-box +select-font-face +self-copy-overlap +self-intersecting +shape-general-convex +shape-sierpinski +show-glyphs-advance +show-text-current-point +smask +smask-text +smp-glyph +spline-decomposition +stroke-clipped +stroke-ctm-caps +stroke-image +stroke-open-box +surface-pattern +surface-pattern-scale-down +surface-pattern-scale-down-extend-reflect +surface-pattern-scale-up +text-glyph-range +text-pattern +text-rotate +text-transform +text-unhinted-metrics +thin-lines +tiger +transforms +trap-clip +twin +unclosed-strokes +user-font +user-font-color +user-font-mask +user-font-proxy +user-font-rescale +user-font-subpixel +world-map +world-map-fill +world-map-stroke diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-ps2-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-ps2-rgb24.txt new file mode 100644 index 0000000000..0ca0b8b45a --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-ps2-rgb24.txt @@ -0,0 +1,197 @@ +arc-direction +arc-looping-dash +bug-361 +bug-431 +bug-448 +bug-51910 +bug-bo-ricotz +bug-extents +bug-spline +caps +caps-05 +caps-1 +caps-2 +caps-joins +caps-joins-05 +caps-joins-1 +caps-joins-2 +caps-joins-curve +caps-sub-paths +caps-tails-curve +clear-source +clip-complex-bug61592 +clip-fill +clip-fill-rule +clip-group-shapes-circles +clip-image +clip-nesting +clip-push-group +clip-rotate-image-surface-paint +clip-shape +clip-stroke +clip-text +clip-twice +close-path +close-path-current-point +copy-path +culled-glyphs +curve-to-as-line-to +dash-caps-joins +dash-curve +dash-infinite-loop +dash-no-dash +dash-offset +dash-offset-negative +dash-scale +dash-state +dash-zero-length +degenerate-arc +degenerate-curve-to +degenerate-dash +degenerate-path +degenerate-pen +degenerate-rel-curve-to +degenerate-solid-dash +drunkard-tails +extend-reflect +extend-reflect-similar +extended-blend-alpha-mask +fill-and-stroke +fill-degenerate-sort-order +fill-image +fill-rule +filter-nearest-offset +font-matrix-translation +ft-color-font +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +gradient-constant-alpha +gradient-zero-stops +group-unaligned +hairline +hairline-anisotropic +hairline-anisotropic-incorrect +hairline-big +hairline-scaled +halo +halo-transform +horizontal-clip +image-surface-source +inverse-text +joins +joins-loop +joins-retrace +joins-star +large-font +leaky-dash +leaky-dashed-rectangle +leaky-dashed-stroke +leaky-polygon +line-width +line-width-large-overlap-dashed +line-width-overlap +line-width-overlap-dashed +line-width-overlap-flipped +line-width-overlap-flopped +line-width-overlap-offset +line-width-scale +line-width-tolerance +long-dashed-lines +miter-precision +new-sub-path +overlapping-glyphs +path-append +path-stroke-twice +pdf-surface-source +pixman-downscale-fast-95 +pixman-downscale-nearest-95 +pixman-rotate +ps-surface-source +pthread-same-source +radial-gradient-source +random-intersections-curves-eo +random-intersections-curves-nz +random-intersections-eo +random-intersections-nonzero +record-extend-reflect +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-reflect +record-replay-extend-repeat +record-select-font-face +record-self-intersecting +record-text-transform +record1414x-fill-alpha +record1414x-select-font-face +record1414x-self-intersecting +record1414x-text-transform +record2x-select-font-face +record2x-self-intersecting +record2x-text-transform +record90-select-font-face +record90-self-intersecting +record90-text-transform +recordflip-select-font-face +recordflip-self-intersecting +recordflip-text-transform +recordflip-whole-select-font-face +recordflip-whole-self-intersecting +recordflip-whole-text-transform +rectilinear-dash +rectilinear-dash-scale +rectilinear-dash-scale-unaligned +rectilinear-grid +rectilinear-miter-limit +rectilinear-stroke +reflected-stroke +rel-path +rotate-clip-image-surface-paint +rotate-image-surface-paint +rotate-stroke-box +round-join-bug-520-bevel +round-join-bug-520-round +rounded-rectangle-fill +rounded-rectangle-stroke +scale-offset-image +scale-offset-similar +scale-source-surface-paint +select-font-face +self-intersecting +set-source +shape-general-convex +shape-sierpinski +show-glyphs-advance +show-text-current-point +smask +smask-text +smp-glyph +source-surface-scale-paint +spline-decomposition +stroke-clipped +stroke-ctm-caps +stroke-image +stroke-open-box +surface-pattern +surface-pattern-scale-down +surface-pattern-scale-down-extend-reflect +surface-pattern-scale-up +text-glyph-range +text-pattern +text-rotate +text-transform +text-unhinted-metrics +thin-lines +tiger +transforms +twin +unclosed-strokes +user-font +user-font-mask +user-font-proxy +user-font-rescale +user-font-subpixel +world-map +world-map-fill +world-map-stroke +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-ps3-argb32.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-ps3-argb32.txt new file mode 100644 index 0000000000..d59940c9ce --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-ps3-argb32.txt @@ -0,0 +1,216 @@ +arc-direction +arc-looping-dash +bug-448 +bug-51910 +bug-bo-ricotz +bug-extents +bug-image-compositor +bug-spline +caps +caps-05 +caps-1 +caps-2 +caps-joins +caps-joins-05 +caps-joins-1 +caps-joins-2 +caps-joins-curve +caps-sub-paths +caps-tails-curve +clear-source +clip-complex-bug61592 +clip-disjoint +clip-fill +clip-fill-rule +clip-group-shapes-circles +clip-image +clip-nesting +clip-push-group +clip-rotate-image-surface-paint +clip-shape +clip-stroke +clip-text +clip-twice +clip-unbounded +close-path +close-path-current-point +copy-path +culled-glyphs +curve-to-as-line-to +dash-caps-joins +dash-curve +dash-infinite-loop +dash-no-dash +dash-offset +dash-offset-negative +dash-scale +dash-state +dash-zero-length +degenerate-arc +degenerate-curve-to +degenerate-dash +degenerate-path +degenerate-pen +degenerate-rel-curve-to +degenerate-solid-dash +drunkard-tails +extend-reflect +extend-reflect-similar +extended-blend +extended-blend-alpha-mask +extended-blend-solid +fallback +fill-and-stroke +fill-degenerate-sort-order +fill-image +fill-rule +filter-nearest-offset +filter-nearest-transformed +finer-grained-fallbacks +font-matrix-translation +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +gradient-constant-alpha +group-unaligned +hairline +hairline-anisotropic +hairline-anisotropic-incorrect +hairline-big +hairline-scaled +halo +halo-transform +horizontal-clip +inverse-text +joins +joins-loop +joins-retrace +joins-star +large-font +leaky-dash +leaky-dashed-rectangle +leaky-dashed-stroke +leaky-polygon +line-width +line-width-large-overlap-dashed +line-width-overlap +line-width-overlap-dashed +line-width-overlap-flipped +line-width-overlap-flopped +line-width-overlap-offset +line-width-scale +line-width-tolerance +linear-gradient +linear-gradient-reflect +linear-gradient-subset +long-dashed-lines +mask-transformed-image +mesh-pattern-conical +mesh-pattern-control-points +mesh-pattern-fold +mesh-pattern-overlap +miter-precision +new-sub-path +operator-www +over-around-source +over-below-source +overlapping-glyphs +path-append +path-stroke-twice +pixman-downscale-fast-95 +pixman-downscale-nearest-95 +pixman-rotate +pthread-same-source +push-group-color +radial-gradient +radial-gradient-mask +radial-gradient-mask-source +radial-gradient-one-stop +random-clip +random-intersections-curves-eo +random-intersections-curves-nz +random-intersections-eo +random-intersections-nonzero +record-extend-reflect +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-reflect +record-replay-extend-repeat +record-select-font-face +record-self-intersecting +record-text-transform +record1414x-fill-alpha +record1414x-select-font-face +record1414x-self-intersecting +record1414x-text-transform +record2x-select-font-face +record2x-self-intersecting +record2x-text-transform +record90-select-font-face +record90-self-intersecting +record90-text-transform +recordflip-select-font-face +recordflip-self-intersecting +recordflip-text-transform +recordflip-whole-select-font-face +recordflip-whole-self-intersecting +recordflip-whole-text-transform +rectilinear-dash +rectilinear-dash-scale +rectilinear-dash-scale-unaligned +rectilinear-grid +rectilinear-miter-limit +rectilinear-stroke +reflected-stroke +rotate-clip-image-surface-paint +rotate-image-surface-paint +rotate-stroke-box +rotated-clip +round-join-bug-520-bevel +round-join-bug-520-round +rounded-rectangle-fill +rounded-rectangle-stroke +scale-offset-image +scale-offset-similar +self-copy-overlap +stroke-ctm-caps +stroke-clipped +stroke-image +stroke-open-box +select-font-face +self-copy-overlap +self-intersecting +shape-general-convex +shape-sierpinski +show-glyphs-advance +show-text-current-point +smask +smask-text +smp-glyph +spline-decomposition +stroke-clipped +stroke-ctm-caps +stroke-image +stroke-open-box +surface-pattern +surface-pattern-scale-down +surface-pattern-scale-down-extend-reflect +surface-pattern-scale-up +text-glyph-range +text-pattern +text-rotate +text-transform +text-unhinted-metrics +thin-lines +tiger +transforms +trap-clip +twin +unclosed-strokes +user-font +user-font-mask +user-font-proxy +user-font-rescale +user-font-subpixel +world-map +world-map-fill +world-map-stroke diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-ps3-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-ps3-rgb24.txt new file mode 100644 index 0000000000..70584a89e5 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-ps3-rgb24.txt @@ -0,0 +1,208 @@ +arc-direction +arc-looping-dash +bug-361 +bug-431 +bug-448 +bug-51910 +bug-bo-ricotz +bug-extents +bug-image-compositor +bug-spline +caps +caps-05 +caps-1 +caps-2 +caps-joins +caps-joins-05 +caps-joins-1 +caps-joins-2 +caps-joins-curve +caps-sub-paths +caps-tails-curve +clear-source +clip-complex-bug61592 +clip-fill +clip-fill-rule +clip-group-shapes-circles +clip-image +clip-nesting +clip-push-group +clip-rotate-image-surface-paint +clip-shape +clip-stroke +clip-text +clip-twice +close-path +close-path-current-point +copy-path +culled-glyphs +curve-to-as-line-to +dash-caps-joins +dash-curve +dash-infinite-loop +dash-no-dash +dash-offset +dash-offset-negative +dash-scale +dash-state +dash-zero-length +degenerate-arc +degenerate-curve-to +degenerate-dash +degenerate-path +degenerate-pen +degenerate-rel-curve-to +degenerate-solid-dash +drunkard-tails +extend-reflect +extend-reflect-similar +extended-blend-alpha-mask +fill-and-stroke +fill-degenerate-sort-order +fill-image +fill-rule +filter-nearest-offset +filter-nearest-transformed +font-matrix-translation +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +gradient-zero-stops +group-unaligned +hairline +hairline-anisotropic +hairline-anisotropic-incorrect +hairline-big +hairline-scaled +halo +halo-transform +horizontal-clip +image-surface-source +inverse-text +joins +joins-loop +joins-retrace +joins-star +large-font +leaky-dash +leaky-dashed-rectangle +leaky-dashed-stroke +leaky-polygon +line-width +line-width-large-overlap-dashed +line-width-overlap +line-width-overlap-dashed +line-width-overlap-flipped +line-width-overlap-flopped +line-width-overlap-offset +line-width-scale +line-width-tolerance +linear-gradient +linear-gradient-reflect +linear-gradient-subset +long-dashed-lines +mask-transformed-image +mesh-pattern-conical +mesh-pattern-control-points +mesh-pattern-fold +mesh-pattern-overlap +miter-precision +new-sub-path +overlapping-glyphs +path-append +path-stroke-twice +pdf-surface-source +pixman-downscale-fast-95 +pixman-downscale-nearest-95 +pixman-rotate +ps-surface-source +pthread-same-source +push-group-color +radial-gradient-one-stop +radial-gradient-source +random-intersections-curves-eo +random-intersections-curves-nz +random-intersections-eo +random-intersections-nonzero +record-extend-reflect +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-reflect +record-replay-extend-repeat +record-select-font-face +record-self-intersecting +record-text-transform +record1414x-fill-alpha +record1414x-select-font-face +record1414x-self-intersecting +record1414x-text-transform +record2x-select-font-face +record2x-self-intersecting +record2x-text-transform +record90-select-font-face +record90-self-intersecting +record90-text-transform +recordflip-select-font-face +recordflip-self-intersecting +recordflip-text-transform +recordflip-whole-select-font-face +recordflip-whole-self-intersecting +recordflip-whole-text-transform +rectilinear-dash +rectilinear-dash-scale +rectilinear-dash-scale-unaligned +rectilinear-grid +rectilinear-miter-limit +rectilinear-stroke +reflected-stroke +rel-path +rotate-clip-image-surface-paint +rotate-image-surface-paint +rotate-stroke-box +round-join-bug-520-bevel +round-join-bug-520-round +rounded-rectangle-fill +rounded-rectangle-stroke +scale-offset-image +scale-offset-similar +scale-source-surface-paint +select-font-face +self-intersecting +set-source +shape-general-convex +shape-sierpinski +show-glyphs-advance +show-text-current-point +smask +smask-text +smp-glyph +source-surface-scale-paint +spline-decomposition +stroke-clipped +stroke-ctm-caps +stroke-image +stroke-open-box +surface-pattern +surface-pattern-scale-down +surface-pattern-scale-down-extend-reflect +surface-pattern-scale-up +text-glyph-range +text-pattern +text-rotate +text-transform +text-unhinted-metrics +thin-lines +tiger +transforms +trap-clip +twin +unclosed-strokes +user-font +user-font-mask +user-font-proxy +user-font-rescale +user-font-subpixel +world-map +world-map-fill +world-map-stroke +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-quartz-argb32.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-quartz-argb32.txt new file mode 100644 index 0000000000..fb30f4bb00 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-quartz-argb32.txt @@ -0,0 +1,52 @@ +bug-361 +bug-431 +bug-image-compositor +clip-operator +coverage-rhombus +culled-glyphs +extended-blend-alpha +extended-blend-alpha-mask +extended-blend-mask +extended-blend-solid-alpha +fallback +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +operator-www +radial-gradient +radial-gradient-mask +radial-gradient-mask-source +radial-gradient-source +record1414x-select-font-face +record1414x-text-transform +record2x-paint-alpha-clip-mask +record2x-select-font-face +record2x-text-transform +record90-fill-alpha +record90-select-font-face +record90-text-transform +record-fill-alpha +recordflip-select-font-face +recordflip-text-transform +recordflip-whole-select-font-face +recordflip-whole-text-transform +record-mesh +record-neg-extents-bounded +record-paint-alpha-clip-mask +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +record-select-font-face +record-text-transform +simple-edge +subsurface +subsurface-outside-target +subsurface-scale +surface-pattern +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-unhinted-metrics +user-font-proxy diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-quartz-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-quartz-rgb24.txt new file mode 100644 index 0000000000..92416e16b7 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-quartz-rgb24.txt @@ -0,0 +1,83 @@ +a1-clip-fill-rule +big-empty-box +big-empty-triangle +big-little-box +bitmap-font +bug-361 +bug-431 +bug-448 +bug-image-compositor +bug-source-cu +clip-device-offset +clip-fill-rule-pixel-aligned +coverage-rhombus +culled-glyphs +device-offset +device-offset-positive +extended-blend-alpha-mask +extended-blend-mask +fill-and-stroke +fill-empty +fill-missed-stop +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +gradient-alpha +gradient-constant-alpha +gradient-zero-stops +gradient-zero-stops-mask +hatchings +image-surface-source +linear-gradient-one-stop +mask-ctm +mask-surface-ctm +nil-surface +operator-www +overlapping-boxes +pass-through +pdf-surface-source +ps-surface-source +quartz-surface-source +radial-gradient +radial-gradient-mask +radial-gradient-mask-source +radial-gradient-source +record1414x-select-font-face +record1414x-text-transform +record2x-paint-alpha-clip-mask +record2x-select-font-face +record2x-text-transform +record90-fill-alpha +record90-select-font-face +record90-text-transform +record-fill-alpha +recordflip-select-font-face +recordflip-text-transform +recordflip-whole-select-font-face +recordflip-whole-text-transform +record-mesh +record-neg-extents-bounded +record-neg-extents-unbounded +record-paint-alpha-clip-mask +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +record-select-font-face +record-text-transform +rel-path +scale-source-surface-paint +set-source +shifted-operator +simple-edge +source-surface-scale-paint +subsurface +subsurface-scale +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-unhinted-metrics +thin-lines +user-font-proxy diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-recording-argb32.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-recording-argb32.txt new file mode 100644 index 0000000000..2697bd99cd --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-recording-argb32.txt @@ -0,0 +1,35 @@ +bug-source-cu +clear-source +clip-text +coverage-rectangles +culled-glyphs +finer-grained-fallbacks +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +halo-transform +overlapping-glyphs +pthread-same-source +record1414x-fill-alpha +record1414x-select-font-face +record1414x-text-transform +record2x-fill-alpha +record2x-paint-alpha-clip-mask +record2x-text-transform +recording-surface-extend-none +recording-surface-extend-reflect +recording-surface-extend-repeat +recording-surface-over +recording-surface-source +scale-offset-similar +show-glyphs-advance +subsurface +subsurface-scale +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +text-rotate +text-unhinted-metrics diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-recording-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-recording-rgb24.txt new file mode 100644 index 0000000000..cd1173b821 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-recording-rgb24.txt @@ -0,0 +1,85 @@ +a1-clip-fill-rule +alpha-similar +big-empty-box +big-empty-triangle +big-little-box +bitmap-font +bug-361 +bug-431 +bug-source-cu +clear-source +clip-device-offset +clip-fill-rule-pixel-aligned +clip-text +coverage-rectangles +culled-glyphs +dash-zero-length +degenerate-path +device-offset +device-offset-positive +extended-blend-alpha-mask +fill-and-stroke +fill-empty +fill-missed-stop +finer-grained-fallbacks +ft-color-font +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +gradient-alpha +gradient-constant-alpha +gradient-zero-stops +gradient-zero-stops-mask +halo-transform +image-surface-source +linear-gradient-one-stop +mask-ctm +mask-surface-ctm +new-sub-path +nil-surface +overlapping-boxes +overlapping-glyphs +pass-through +pdf-surface-source +pixman-downscale-best-24 +pixman-rotate +ps-surface-source +pthread-same-source +radial-gradient-source +record1414x-fill-alpha +record1414x-select-font-face +record1414x-text-transform +record2x-fill-alpha +record2x-paint-alpha-clip-mask +record2x-text-transform +recording-surface-extend-none +recording-surface-extend-reflect +recording-surface-extend-repeat +recording-surface-over +recording-surface-source +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +rel-path +scale-offset-similar +scale-source-surface-paint +set-source +show-glyphs-advance +source-surface-scale-paint +subsurface +subsurface-outside-target +subsurface-scale +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +text-rotate +text-unhinted-metrics +thin-lines +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-script-argb32.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-script-argb32.txt new file mode 100644 index 0000000000..e78be546f7 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-script-argb32.txt @@ -0,0 +1,85 @@ +a1-fill +bilevel-image +bitmap-font +clear-source +clip-device-offset +clip-text +composite-integer-translate-over-repeat +coverage-abutting +coverage-intersecting-triangles +coverage-rectangles +culled-glyphs +device-offset-scale +ft-show-glyphs-positioning +ft-text-antialias-none +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +halo-transform +image-surface-source +large-source +large-twin-antialias-mixed +leaky-dashed-rectangle +linear-gradient-reflect +map-all-to-image +map-bit-to-image +map-to-image-fill +negative-stride-image +overlapping-glyphs +paint-source-alpha +pdf-surface-source +ps-surface-source +pthread-show-text +push-group-color +radial-gradient +radial-gradient-mask +radial-gradient-mask-source +radial-gradient-source +record1414x-select-font-face +record1414x-text-transform +record2x-select-font-face +record2x-text-transform +record90-select-font-face +record90-text-transform +recordflip-select-font-face +recordflip-text-transform +recordflip-whole-select-font-face +recordflip-whole-text-transform +recording-surface-extend-none +recording-surface-extend-reflect +recording-surface-extend-repeat +recording-surface-over +recording-surface-source +record-neg-extents-bounded +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +record-select-font-face +record-text-transform +scale-offset-image +scale-offset-similar +show-glyphs-advance +smask +smask-text +stride-12-image +subsurface +subsurface-scale +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +text-rotate +text-unhinted-metrics +twin +twin-antialias-gray +twin-antialias-mixed +twin-antialias-none +twin-antialias-subpixel +user-font +user-font-proxy +user-font-rescale +xcb-stress-cache +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-svg11-argb32.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-svg11-argb32.txt new file mode 100644 index 0000000000..2f53dd3403 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-svg11-argb32.txt @@ -0,0 +1,52 @@ +alpha-similar +clear-source +clip-operator +clip-text +culled-glyphs +extended-blend-solid +extended-blend-solid-alpha +filter-bilinear-extents +filter-nearest-offset +filter-nearest-transformed +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +halo-transform +linear-gradient-reflect +operator-alpha-alpha +overlapping-glyphs +paint-source-alpha +paint-with-alpha +paint-with-alpha-clip +paint-with-alpha-clip-mask +record1414x-paint-alpha +record1414x-paint-alpha-clip +record1414x-paint-alpha-clip-mask +record1414x-select-font-face +record1414x-text-transform +record2x-paint-alpha +record2x-paint-alpha-clip +record2x-paint-alpha-clip-mask +record90-paint-alpha-clip +record90-paint-alpha-clip-mask +recordflip-paint-alpha +recordflip-paint-alpha-clip +recordflip-paint-alpha-clip-mask +recordflip-whole-paint-alpha +recordflip-whole-paint-alpha-clip +recordflip-whole-paint-alpha-clip-mask +record-paint-alpha +record-paint-alpha-clip +record-paint-alpha-clip-mask +scale-offset-image +scale-source-surface-paint +show-glyphs-advance +surface-pattern +surface-pattern-operator +surface-pattern-scale-up +text-pattern +text-rotate +text-unhinted-metrics +tighten-bounds +unbounded-operator +user-font-color diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-svg11-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-svg11-rgb24.txt new file mode 100644 index 0000000000..44ddbff0e8 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-svg11-rgb24.txt @@ -0,0 +1,109 @@ +alpha-similar +big-empty-box +big-empty-triangle +big-little-box +bitmap-font +bug-361 +bug-source-cu +clear-source +clip-device-offset +clip-fill-eo-unbounded +clip-fill-nz-unbounded +clip-fill-rule-pixel-aligned +clip-operator +clip-stroke-unbounded +clip-text +culled-glyphs +dash-zero-length +degenerate-path +device-offset +device-offset-positive +extended-blend-alpha-mask +extended-blend-solid +extended-blend-solid-alpha +fill-and-stroke +fill-empty +fill-missed-stop +filter-bilinear-extents +filter-nearest-offset +filter-nearest-transformed +finer-grained-fallbacks +ft-color-font +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +gradient-alpha +gradient-constant-alpha +gradient-zero-stops +gradient-zero-stops-mask +halo-transform +image-surface-source +linear-gradient-one-stop +linear-gradient-reflect +mask-ctm +mask-surface-ctm +new-sub-path +nil-surface +operator-alpha-alpha +operator-source +overlapping-boxes +overlapping-glyphs +paint-source-alpha +paint-with-alpha +paint-with-alpha-clip +paint-with-alpha-clip-mask +pass-through +pdf-surface-source +pixman-rotate +ps-surface-source +radial-gradient-mask-source +radial-gradient-source +record1414x-paint +record1414x-paint-alpha +record1414x-paint-alpha-clip +record1414x-paint-alpha-clip-mask +record1414x-paint-alpha-solid-clip +record1414x-select-font-face +record1414x-self-intersecting +record1414x-text-transform +record2x-paint-alpha +record2x-paint-alpha-clip +record2x-paint-alpha-clip-mask +record90-paint-alpha-clip +record90-paint-alpha-clip-mask +recordflip-paint-alpha +recordflip-paint-alpha-clip +recordflip-paint-alpha-clip-mask +recordflip-whole-paint-alpha +recordflip-whole-paint-alpha-clip +recordflip-whole-paint-alpha-clip-mask +recording-surface-extend-none +recording-surface-extend-reflect +recording-surface-over +recording-surface-source +record-neg-extents-bounded +record-neg-extents-unbounded +record-paint-alpha +record-paint-alpha-clip +record-paint-alpha-clip-mask +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +rel-path +scale-offset-image +scale-source-surface-paint +set-source +show-glyphs-advance +source-surface-scale-paint +surface-pattern +surface-pattern-operator +surface-pattern-scale-up +text-pattern +text-rotate +text-unhinted-metrics +thin-lines +tighten-bounds +unbounded-operator +xcb-surface-source +xlib-surface-source +user-font-color diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-argb32.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-argb32.txt new file mode 100644 index 0000000000..18cfefded8 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-argb32.txt @@ -0,0 +1,56 @@ +a1-tiger +bug-spline +clip-operator +coverage-column-triangles +coverage-intersecting-quads +coverage-intersecting-triangles +coverage-rectangles +coverage-rhombus +coverage-row-triangles +coverage-triangles +culled-glyphs +fill-image +ft-text-vertical-layout-type1 +halo +halo-transform +hatchings +operator-source +overlapping-boxes +radial-gradient +radial-gradient-mask +radial-gradient-mask-source +radial-gradient-source +radial-outer-focus +random-clip +record1414x-fill-alpha +record1414x-self-intersecting +record2x-fill-alpha +record2x-paint-alpha-clip-mask +record90-paint-alpha-clip +record90-paint-alpha-solid-clip +record90-self-intersecting +recordflip-paint-alpha-clip-mask +recordflip-self-intersecting +recordflip-whole-fill-alpha +recordflip-whole-paint-alpha-clip-mask +recordflip-whole-self-intersecting +recording-surface-extend-pad +recording-surface-extend-repeat +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +record-self-intersecting +rotated-clip +simple-edge +stroke-clipped +stroke-image +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-rotate +tighten-bounds +twin-antialias-none +unantialiased-shapes +user-font +user-font-proxy diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-fallback-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-fallback-rgb24.txt new file mode 100644 index 0000000000..842796fa65 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-fallback-rgb24.txt @@ -0,0 +1,71 @@ +a1-clip-fill-rule +alpha-similar +big-empty-box +big-empty-triangle +big-little-box +bitmap-font +bug-361 +bug-431 +clip-device-offset +clip-fill-rule-pixel-aligned +clip-text +coverage-intersecting-triangles +culled-glyphs +dash-zero-length +degenerate-path +device-offset +device-offset-positive +extended-blend-alpha-mask +fill-and-stroke +fill-empty +fill-missed-stop +finer-grained-fallbacks +ft-color-font +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +gradient-alpha +gradient-constant-alpha +gradient-zero-stops +gradient-zero-stops-mask +halo-transform +image-surface-source +linear-gradient-one-stop +mask-ctm +mask-surface-ctm +new-sub-path +nil-surface +overlapping-boxes +overlapping-glyphs +pass-through +pdf-surface-source +pixman-downscale-best-24 +pixman-rotate +ps-surface-source +record1414x-select-font-face +record1414x-text-transform +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +rel-path +scale-source-surface-paint +set-source +show-glyphs-advance +source-surface-scale-paint +subsurface +subsurface-outside-target +subsurface-scale +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +text-rotate +text-unhinted-metrics +thin-lines +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-render-0-0-argb32.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-render-0-0-argb32.txt new file mode 100644 index 0000000000..9e9fbc37c2 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-render-0-0-argb32.txt @@ -0,0 +1,30 @@ +clip-disjoint-hatching +clip-fill-eo-unbounded +clip-fill-nz-unbounded +clip-operator +clip-polygons +clip-shape +clip-stroke-unbounded +clip-twice +coverage-intersecting-triangles +culled-glyphs +ft-text-vertical-layout-type1 +hatchings +radial-gradient +radial-gradient-mask +radial-gradient-mask-source +radial-gradient-source +random-clip +record1414x-select-font-face +record1414x-text-transform +record-neg-extents-bounded +record-paint-alpha-solid-clip +record-replay-extend-reflect +record-replay-extend-repeat +rotated-clip +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +trap-clip diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-render-0-0-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-render-0-0-rgb24.txt new file mode 100644 index 0000000000..070e45b6c3 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-render-0-0-rgb24.txt @@ -0,0 +1,78 @@ +a1-clip-fill-rule +alpha-similar +big-empty-box +big-empty-triangle +big-little-box +bitmap-font +bug-361 +bug-431 +bug-source-cu +clip-device-offset +clip-disjoint-hatching +clip-fill-eo-unbounded +clip-fill-nz-unbounded +clip-fill-rule-pixel-aligned +clip-operator +clip-polygons +clip-shape +clip-stroke-unbounded +coverage-intersecting-triangles +culled-glyphs +dash-zero-length +degenerate-path +device-offset +device-offset-positive +extended-blend-alpha-mask +fill-and-stroke +fill-empty +fill-missed-stop +finer-grained-fallbacks +ft-color-font +ft-text-vertical-layout-type1 +gradient-alpha +gradient-constant-alpha +gradient-zero-stops +gradient-zero-stops-mask +hatchings +image-surface-source +linear-gradient-one-stop +mask-ctm +mask-surface-ctm +new-sub-path +nil-surface +overlapping-boxes +overlapping-glyphs +pass-through +pdf-surface-source +pixman-downscale-best-24 +pixman-rotate +ps-surface-source +radial-gradient +radial-gradient-mask +radial-gradient-mask-source +radial-gradient-source +random-clip +record1414x-select-font-face +record1414x-text-transform +record-neg-extents-bounded +record-neg-extents-unbounded +record-paint-alpha-solid-clip +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +rel-path +rotated-clip +scale-source-surface-paint +set-source +source-surface-scale-paint +subsurface-outside-target +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +thin-lines +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-rgb24.txt new file mode 100644 index 0000000000..c725bedb90 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-rgb24.txt @@ -0,0 +1,95 @@ +a1-clip-fill-rule +a1-tiger +alpha-similar +big-empty-box +big-empty-triangle +big-little-box +bitmap-font +bug-431 +bug-spline +clip-device-offset +clip-fill-rule-pixel-aligned +clip-operator +coverage-column-triangles +coverage-intersecting-quads +coverage-intersecting-triangles +coverage-rectangles +coverage-rhombus +coverage-row-triangles +coverage-triangles +culled-glyphs +device-offset +device-offset-positive +extended-blend-alpha-mask +fill-empty +fill-image +ft-color-font +ft-text-vertical-layout-type1 +gradient-alpha +gradient-constant-alpha +gradient-zero-stops +gradient-zero-stops-mask +halo +halo-transform +hatchings +image-surface-source +linear-gradient-one-stop +mask-ctm +mask-surface-ctm +nil-surface +operator-source +overlapping-boxes +pass-through +pdf-surface-source +pixman-downscale-best-24 +pixman-rotate +ps-surface-source +radial-gradient +radial-gradient-mask +radial-gradient-mask-source +radial-gradient-source +radial-outer-focus +random-clip +record1414x-fill-alpha +record1414x-self-intersecting +record2x-fill-alpha +record2x-paint-alpha-clip-mask +record90-paint-alpha-clip +record90-paint-alpha-solid-clip +record90-self-intersecting +recordflip-paint-alpha-clip-mask +recordflip-self-intersecting +recordflip-whole-fill-alpha +recordflip-whole-paint-alpha-clip-mask +recordflip-whole-self-intersecting +recording-surface-extend-pad +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +record-self-intersecting +rotated-clip +scale-source-surface-paint +set-source +simple-edge +source-surface-scale-paint +stroke-clipped +stroke-image +subsurface-outside-target +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +text-rotate +thin-lines +tighten-bounds +twin-antialias-none +unantialiased-shapes +user-font +user-font-proxy +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-window&-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-window&-rgb24.txt new file mode 100644 index 0000000000..7e6febe3b1 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-window&-rgb24.txt @@ -0,0 +1,85 @@ +a1-clip-fill-rule +alpha-similar +big-empty-box +big-empty-triangle +big-little-box +bitmap-font +bug-431 +bug-spline +clip-device-offset +clip-fill-rule-pixel-aligned +clip-operator +coverage-column-triangles +coverage-intersecting-quads +coverage-intersecting-triangles +coverage-rectangles +coverage-row-triangles +coverage-triangles +culled-glyphs +device-offset +device-offset-positive +extended-blend-alpha-mask +fill-empty +fill-image +ft-color-font +ft-text-vertical-layout-type1 +gradient-alpha +gradient-constant-alpha +gradient-zero-stops +gradient-zero-stops-mask +halo +halo-transform +image-surface-source +linear-gradient-one-stop +mask-ctm +mask-surface-ctm +nil-surface +operator-source +overlapping-boxes +pass-through +pdf-surface-source +pixman-downscale-best-24 +pixman-rotate +ps-surface-source +radial-outer-focus +record1414x-fill-alpha +record1414x-self-intersecting +record2x-fill-alpha +record2x-paint-alpha-clip-mask +record90-paint-alpha-clip +record90-paint-alpha-solid-clip +record90-self-intersecting +recordflip-paint-alpha-clip-mask +recordflip-self-intersecting +recordflip-whole-fill-alpha +recordflip-whole-paint-alpha-clip-mask +recordflip-whole-self-intersecting +recording-surface-extend-pad +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +record-self-intersecting +rotated-clip +scale-source-surface-paint +set-source +simple-edge +source-surface-scale-paint +stroke-clipped +stroke-image +subsurface-outside-target +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +text-rotate +thin-lines +tighten-bounds +twin-antialias-none +unantialiased-shapes +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-window-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-window-rgb24.txt new file mode 100644 index 0000000000..6f27c97b18 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xcb-window-rgb24.txt @@ -0,0 +1,87 @@ +a1-clip-fill-rule +alpha-similar +big-empty-box +big-empty-triangle +big-little-box +bitmap-font +bug-431 +bug-spline +clip-device-offset +clip-fill-rule-pixel-aligned +clip-operator +coverage-column-triangles +coverage-intersecting-quads +coverage-intersecting-triangles +coverage-rectangles +coverage-row-triangles +coverage-triangles +culled-glyphs +device-offset +device-offset-positive +extended-blend-alpha-mask +fill-empty +fill-image +ft-color-font +ft-text-vertical-layout-type1 +gradient-alpha +gradient-constant-alpha +gradient-zero-stops +gradient-zero-stops-mask +halo +halo-transform +image-surface-source +linear-gradient-one-stop +mask-ctm +mask-surface-ctm +nil-surface +operator-source +overlapping-boxes +pass-through +pdf-surface-source +pixman-downscale-best-24 +pixman-rotate +ps-surface-source +push-group +push-group-color +radial-outer-focus +record1414x-fill-alpha +record1414x-self-intersecting +record2x-fill-alpha +record2x-paint-alpha-clip-mask +record90-paint-alpha-clip +record90-paint-alpha-solid-clip +record90-self-intersecting +recordflip-paint-alpha-clip-mask +recordflip-self-intersecting +recordflip-whole-fill-alpha +recordflip-whole-paint-alpha-clip-mask +recordflip-whole-self-intersecting +recording-surface-extend-pad +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +record-self-intersecting +rotated-clip +scale-source-surface-paint +set-source +simple-edge +source-surface-scale-paint +stroke-clipped +stroke-image +subsurface-outside-target +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +text-rotate +thin-lines +tighten-bounds +twin-antialias-none +unantialiased-shapes +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-argb32.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-argb32.txt new file mode 100644 index 0000000000..098259fc72 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-argb32.txt @@ -0,0 +1,127 @@ +aliasing +arc-looping-dash +bug-84115 +bug-extents +bug-image-compositor +bug-spline +caps-joins-curve +clip-disjoint +clip-operator +clip-shape +clip-stroke +clip-stroke-unbounded +clip-text +close-path-current-point +coverage-column-triangles +coverage-rhombus +culled-glyphs +dash-caps-joins +dash-curve +dash-scale +degenerate-curve-to +degenerate-pen +degenerate-rel-curve-to +drunkard-tails +extended-blend-alpha-mask +fill-and-stroke +fill-and-stroke-alpha +fill-and-stroke-alpha-add +fill-image +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +halo +halo-transform +hatchings +joins +joins-loop +joins-retrace +large-twin-antialias-mixed +leaky-dashed-stroke +line-width-scale +line-width-tolerance +long-dashed-lines +new-sub-path +operator-source +overlapping-boxes +overlapping-dash-caps +overlapping-glyphs +path-stroke-twice +pthread-show-text +radial-gradient +radial-gradient-mask +radial-gradient-mask-source +radial-gradient-source +radial-outer-focus +random-clip +random-intersections-curves-eo +random-intersections-curves-nz +random-intersections-eo +random-intersections-nonzero +record1414x-fill-alpha +record1414x-select-font-face +record1414x-self-intersecting +record1414x-text-transform +record2x-fill-alpha +record2x-paint-alpha-clip-mask +record2x-select-font-face +record2x-text-transform +record90-paint-alpha-clip +record90-paint-alpha-solid-clip +record90-select-font-face +record90-self-intersecting +record90-text-transform +recordflip-paint-alpha-clip-mask +recordflip-select-font-face +recordflip-self-intersecting +recordflip-text-transform +recordflip-whole-fill-alpha +recordflip-whole-paint-alpha-clip-mask +recordflip-whole-select-font-face +recordflip-whole-self-intersecting +recordflip-whole-text-transform +recording-surface-extend-pad +recording-surface-extend-repeat +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +record-select-font-face +record-self-intersecting +record-text-transform +reflected-stroke +rel-path +rounded-rectangle-stroke +scale-offset-image +scale-offset-similar +shape-general-convex +shape-sierpinski +show-glyphs-advance +simple-edge +smask +smask-stroke +smask-text +spline-decomposition +stroke-clipped +stroke-image +stroke-pattern +subsurface +subsurface-scale +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +text-rotate +text-unhinted-metrics +tighten-bounds +twin +twin-antialias-gray +twin-antialias-mixed +twin-antialias-none +twin-antialias-subpixel +unclosed-strokes +user-font +user-font-proxy +world-map +world-map-stroke diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-fallback-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-fallback-rgb24.txt new file mode 100644 index 0000000000..6c9360def8 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-fallback-rgb24.txt @@ -0,0 +1,87 @@ +a1-clip-fill-rule +alpha-similar +big-empty-box +big-empty-triangle +big-little-box +bitmap-font +bug-361 +bug-431 +bug-seams +clip-device-offset +clip-fill-rule-pixel-aligned +clip-text +culled-glyphs +dash-zero-length +degenerate-path +device-offset +device-offset-positive +extended-blend-alpha-mask +fallback +fill-and-stroke +fill-empty +fill-missed-stop +finer-grained-fallbacks +ft-color-font +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +gradient-alpha +gradient-constant-alpha +gradient-zero-stops +gradient-zero-stops-mask +halo-transform +image-surface-source +large-twin-antialias-mixed +linear-gradient-one-stop +mask-ctm +mask-surface-ctm +new-sub-path +nil-surface +over-above-source +over-around-source +over-between-source +overlapping-boxes +overlapping-glyphs +pass-through +pdf-surface-source +pixman-downscale-best-24 +pixman-rotate +ps-surface-source +pthread-show-text +pthread-similar +push-group-color +record1414x-select-font-face +record1414x-text-transform +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +rel-path +scale-source-surface-paint +set-source +shifted-operator +show-glyphs-advance +smask +smask-text +source-surface-scale-paint +subsurface +subsurface-outside-target +subsurface-scale +surface-pattern-scale-down-extend-none +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +text-rotate +text-unhinted-metrics +thin-lines +twin-antialias-gray +twin-antialias-mixed +twin-antialias-none +twin-antialias-subpixel +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-render-0-0-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-render-0-0-rgb24.txt new file mode 100644 index 0000000000..bc4e4e21c5 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-render-0-0-rgb24.txt @@ -0,0 +1,94 @@ +a1-clip-fill-rule +alpha-similar +big-empty-box +big-empty-triangle +big-little-box +bitmap-font +bug-361 +bug-431 +bug-source-cu +clip-device-offset +clip-fill-rule-pixel-aligned +clip-operator +clipped-group +clip-text +coverage-intersecting-triangles +culled-glyphs +curve-to-as-line-to +degenerate-path +device-offset +device-offset-positive +extended-blend-alpha-mask +fill-and-stroke +fill-and-stroke-alpha +fill-and-stroke-alpha-add +fill-empty +fill-missed-stop +finer-grained-fallbacks +ft-color-font +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +gradient-alpha +gradient-constant-alpha +gradient-zero-stops +gradient-zero-stops-mask +halo-transform +horizontal-clip +image-surface-source +large-twin-antialias-mixed +leaky-polygon +linear-gradient-one-stop +mask +mask-ctm +mask-surface-ctm +new-sub-path +nil-surface +operator-clear +operator-source +overlapping-boxes +overlapping-glyphs +pass-through +pdf-surface-source +pixman-downscale-best-24 +pixman-rotate +ps-surface-source +pthread-show-text +radial-gradient-source +radial-outer-focus +record1414x-select-font-face +record1414x-text-transform +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +rectilinear-stroke +rel-path +scale-source-surface-paint +set-source +show-glyphs-advance +smask +smask-text +source-surface-scale-paint +subsurface +subsurface-outside-target +subsurface-scale +surface-pattern-operator +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +text-rotate +text-unhinted-metrics +thin-lines +twin-antialias-gray +twin-antialias-mixed +twin-antialias-none +twin-antialias-subpixel +unbounded-operator +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-rgb24.txt new file mode 100644 index 0000000000..e7d8b13a56 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-rgb24.txt @@ -0,0 +1,163 @@ +a1-clip-fill-rule +aliasing +alpha-similar +arc-looping-dash +big-empty-box +big-empty-triangle +big-little-box +bitmap-font +bug-84115 +bug-extents +bug-image-compositor +bug-spline +caps-joins-curve +clip-device-offset +clip-disjoint +clip-fill-rule-pixel-aligned +clip-operator +clip-shape +clip-stroke +clip-stroke-unbounded +clip-text +close-path-current-point +coverage-column-triangles +coverage-rhombus +culled-glyphs +dash-caps-joins +dash-curve +dash-scale +degenerate-curve-to +degenerate-pen +degenerate-rel-curve-to +device-offset +device-offset-positive +drunkard-tails +extended-blend-alpha-mask +fill-and-stroke +fill-and-stroke-alpha +fill-and-stroke-alpha-add +fill-empty +fill-image +ft-color-font +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +gradient-alpha +gradient-constant-alpha +gradient-zero-stops +gradient-zero-stops-mask +halo +halo-transform +hatchings +image-surface-source +joins +joins-loop +joins-retrace +large-twin-antialias-mixed +leaky-dashed-stroke +linear-gradient-one-stop +line-width-scale +line-width-tolerance +long-dashed-lines +mask-ctm +mask-surface-ctm +new-sub-path +nil-surface +operator-source +overlapping-boxes +overlapping-dash-caps +overlapping-glyphs +pass-through +path-stroke-twice +pdf-surface-source +pixman-downscale-best-24 +pixman-rotate +ps-surface-source +pthread-show-text +radial-gradient +radial-gradient-mask +radial-gradient-mask-source +radial-gradient-source +radial-outer-focus +random-clip +random-intersections-curves-eo +random-intersections-curves-nz +random-intersections-eo +random-intersections-nonzero +record1414x-fill-alpha +record1414x-select-font-face +record1414x-self-intersecting +record1414x-text-transform +record2x-fill-alpha +record2x-paint-alpha-clip-mask +record2x-select-font-face +record2x-text-transform +record90-paint-alpha-clip +record90-paint-alpha-solid-clip +record90-select-font-face +record90-self-intersecting +record90-text-transform +recordflip-paint-alpha-clip-mask +recordflip-select-font-face +recordflip-self-intersecting +recordflip-text-transform +recordflip-whole-fill-alpha +recordflip-whole-paint-alpha-clip-mask +recordflip-whole-select-font-face +recordflip-whole-self-intersecting +recordflip-whole-text-transform +recording-surface-extend-pad +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +record-select-font-face +record-self-intersecting +record-text-transform +reflected-stroke +rel-path +rounded-rectangle-stroke +scale-offset-image +scale-offset-similar +scale-source-surface-paint +set-source +shape-general-convex +shape-sierpinski +shifted-operator +show-glyphs-advance +simple-edge +smask +smask-stroke +smask-text +source-surface-scale-paint +spline-decomposition +stroke-clipped +stroke-image +stroke-pattern +subsurface +subsurface-outside-target +subsurface-scale +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +text-rotate +text-unhinted-metrics +thin-lines +tighten-bounds +twin +twin-antialias-gray +twin-antialias-mixed +twin-antialias-none +twin-antialias-subpixel +unclosed-strokes +user-font +user-font-proxy +world-map +world-map-stroke +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-window-rgb24.txt b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-window-rgb24.txt new file mode 100644 index 0000000000..18f75875f6 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/ignore-xlib-window-rgb24.txt @@ -0,0 +1,149 @@ +a1-clip-fill-rule +aliasing +alpha-similar +arc-looping-dash +big-empty-box +big-empty-triangle +big-little-box +bitmap-font +bug-extents +bug-spline +caps-joins-curve +clip-device-offset +clip-disjoint +clip-fill-rule-pixel-aligned +clip-operator +clip-shape +clip-stroke +clip-stroke-unbounded +clip-text +close-path-current-point +coverage-column-triangles +coverage-intersecting-quads +coverage-intersecting-triangles +coverage-rectangles +coverage-row-triangles +coverage-triangles +culled-glyphs +dash-caps-joins +dash-scale +degenerate-curve-to +degenerate-pen +degenerate-rel-curve-to +device-offset +device-offset-positive +drunkard-tails +extended-blend-alpha-mask +fill-and-stroke +fill-and-stroke-alpha +fill-and-stroke-alpha-add +fill-empty +fill-image +ft-color-font +ft-show-glyphs-positioning +ft-text-vertical-layout-type1 +ft-text-vertical-layout-type3 +gradient-alpha +gradient-constant-alpha +gradient-zero-stops +gradient-zero-stops-mask +halo +halo-transform +image-surface-source +joins +joins-loop +joins-retrace +large-twin-antialias-mixed +leaky-dashed-stroke +linear-gradient-one-stop +line-width-scale +line-width-tolerance +long-dashed-lines +mask-ctm +mask-surface-ctm +new-sub-path +nil-surface +operator-source +overlapping-boxes +overlapping-dash-caps +overlapping-glyphs +pass-through +path-stroke-twice +pdf-surface-source +pixman-downscale-best-24 +pixman-rotate +ps-surface-source +pthread-show-text +radial-outer-focus +record1414x-fill-alpha +record1414x-select-font-face +record1414x-self-intersecting +record1414x-text-transform +record2x-fill-alpha +record2x-paint-alpha-clip-mask +record2x-select-font-face +record2x-text-transform +record90-paint-alpha-clip +record90-paint-alpha-solid-clip +record90-select-font-face +record90-self-intersecting +record90-text-transform +recordflip-paint-alpha-clip-mask +recordflip-select-font-face +recordflip-self-intersecting +recordflip-text-transform +recordflip-whole-fill-alpha +recordflip-whole-paint-alpha-clip-mask +recordflip-whole-select-font-face +recordflip-whole-self-intersecting +recordflip-whole-text-transform +recording-surface-extend-pad +record-neg-extents-bounded +record-neg-extents-unbounded +record-replay-extend-none +record-replay-extend-pad +record-replay-extend-reflect +record-replay-extend-repeat +record-select-font-face +record-self-intersecting +record-text-transform +reflected-stroke +rel-path +rounded-rectangle-stroke +scale-offset-image +scale-offset-similar +scale-source-surface-paint +set-source +shape-general-convex +shifted-operator +show-glyphs-advance +simple-edge +smask +smask-stroke +smask-text +source-surface-scale-paint +spline-decomposition +stroke-clipped +stroke-image +stroke-pattern +subsurface +subsurface-outside-target +subsurface-scale +text-antialias-subpixel +text-antialias-subpixel-bgr +text-antialias-subpixel-rgb +text-antialias-subpixel-vbgr +text-antialias-subpixel-vrgb +text-pattern +text-rotate +text-unhinted-metrics +thin-lines +tighten-bounds +twin +twin-antialias-gray +twin-antialias-mixed +twin-antialias-none +twin-antialias-subpixel +unclosed-strokes +xcb-surface-source +xlib-surface-source diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/install-grcov.sh b/local/recipes/libs/cairo/source/.gitlab-ci/install-grcov.sh new file mode 100644 index 0000000000..43edaa73f6 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/install-grcov.sh @@ -0,0 +1,8 @@ +source ./.gitlab-ci/env.sh + +set -eu +export CARGO_HOME='/usr/local/cargo' + +# Coverage tools +cargo install grcov +rustup component add llvm-tools-preview diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/install-rust-tools.sh b/local/recipes/libs/cairo/source/.gitlab-ci/install-rust-tools.sh new file mode 100644 index 0000000000..23e55f4d92 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/install-rust-tools.sh @@ -0,0 +1,11 @@ +source ./.gitlab-ci/env.sh + +set -eu +export CARGO_HOME='/usr/local/cargo' + +rustup component add clippy +rustup component add rustfmt +# cargo install --force cargo-c +cargo install --version ^1.0 gitlab_clippy +cargo install --force cargo-deny +# cargo install --force cargo-outdated diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/install-rust.sh b/local/recipes/libs/cairo/source/.gitlab-ci/install-rust.sh new file mode 100644 index 0000000000..93cdb4abd6 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/install-rust.sh @@ -0,0 +1,92 @@ +#!/bin/bash + +set -o errexit -o pipefail -o noclobber -o nounset + +source ./.gitlab-ci/env.sh + +export CARGO_HOME='/usr/local/cargo' + +PARSED=$(getopt --options '' --longoptions 'rustup-version:,stable:,minimum:,nightly,arch:' --name "$0" -- "$@") +if [ $? -ne 0 ]; then + echo 'Terminating...' >&2 + exit 1 +fi + +eval set -- "$PARSED" +unset PARSED + +RUSTUP_VERSION= +STABLE= +MINIMUM= +NIGHTLY= +ARCH= + +while true; do + case "$1" in + '--rustup-version') + RUSTUP_VERSION=$2 + shift 2 + ;; + + '--stable') + STABLE=$2 + shift 2 + ;; + + '--minimum') + MINIMUM=$2 + shift 2 + ;; + + '--nightly') + NIGHTLY=1 + shift 1 + ;; + + '--arch') + ARCH=$2 + shift 2 + ;; + + '--') + shift + break + ;; + + *) + echo "Programming error" + exit 3 + ;; + esac +done + +if [ -z "$RUSTUP_VERSION" ]; then + echo "missing --rustup-version argument" + exit 1 +fi + +if [ -z "$STABLE" ]; then + echo "missing --stable argument, please pass the stable version of rustc you want" + exit 1 +fi + +if [ -z "$ARCH" ]; then + echo "missing --arch argument, please pass an architecture triple like x86_64-unknown-linux-gnu" + exit 1 +fi + +RUSTUP_URL=https://static.rust-lang.org/rustup/archive/$RUSTUP_VERSION/$ARCH/rustup-init +wget $RUSTUP_URL + +chmod +x rustup-init +./rustup-init -y --no-modify-path --profile minimal --default-toolchain $STABLE +rm rustup-init +chmod -R a+w $RUSTUP_HOME $CARGO_HOME + +if [ -n "$MINIMUM" ]; then + rustup toolchain install $MINIMUM +fi + +if [ -n "$NIGHTLY" ]; then + rustup toolchain install nightly +fi diff --git a/local/recipes/libs/cairo/source/.gitlab-ci/pages-index.html b/local/recipes/libs/cairo/source/.gitlab-ci/pages-index.html new file mode 100644 index 0000000000..9a6aba58a0 --- /dev/null +++ b/local/recipes/libs/cairo/source/.gitlab-ci/pages-index.html @@ -0,0 +1,13 @@ + + + Cairo's development pages + + + +

Cairo's development pages

+ + + + diff --git a/local/recipes/libs/cairo/source/.redbear-src-version b/local/recipes/libs/cairo/source/.redbear-src-version new file mode 100644 index 0000000000..3a33ec3510 --- /dev/null +++ b/local/recipes/libs/cairo/source/.redbear-src-version @@ -0,0 +1 @@ +cairo-1.18.4.tar.xz diff --git a/local/recipes/libs/cairo/source/AUTHORS b/local/recipes/libs/cairo/source/AUTHORS new file mode 100644 index 0000000000..fe5a883e8b --- /dev/null +++ b/local/recipes/libs/cairo/source/AUTHORS @@ -0,0 +1,115 @@ +Josh Aas Memory leak fix for quartz backend +Daniel Amelang Many (magic) floating-point optimizations +Shawn T. Amundson Build fix +Olivier Andrieu PNG backend +Peter Dennis Bartok Bug fix for clipping +Dave Beckett Build fixes, Debian packaging +Kai-Uwe Behrmann SVG bug fixes +Christian Biesinger BeOS backend +Billy Biggs Pixman code merge. Optimization. Fixes for subtle rendering bugs. +Hans Breuer win32 bug fixes, build fixes, and improvements +Brian Cameron Flag bug in Sun's X server +Carlos Garcia Campos libspectre integration into the test-suite +Andrea Canciani Bugs, quartz backend improvements and type 6/7 patterns. +Damien Carbery Build fixes +Andrew Chant Adding const where needed +Steve Chaplin Bug fixes for PNG reading +Tomasz Cholewo Bug fixes +Manu Cornet SVG build fix +Frederic Crozat Fix test suite for OPD platforms (IA64 or PPC64) +Julien Danjou XCB fixes +Radek Doulík Bug report and test case +John Ehresman Build fixes for win32 +John Ellson First font/glyph extents functions +Michael Emmel DirectFB backend +Miklós Erdélyi Fix typo leading to a crash +Behdad Esfahbod Huge piles of bug fixes, improvements, and general maintenance +Gilles Espinasse Font related fixes +Larry Ewing Test case for group-clip +Brian Ewins ATSUI maintenance (first success at making it really work) +Bertram Felgenhauer Fixes for subtle arithmetic errors +Damian Frank Build system improvements for win32 +Bdale Garbee Provided essential support for cairo architecture sessions +Jens Granseuer Fixes to generate proper compiler flags +Laxmi Harikumar Build fix +J. Ali Harlow win32 backend updates +Bryce Harrington Test cases, bug/typo fixes +Mathias Hasselmann Significant reduction of calls to malloc +Richard Henderson "slim" macros for better shared libraries +James Henstridge Build fixes related to freetype +Graydon Hoare Support for non-render X server, first real text support +Thomas Hunger Initial version of cairo_in_stroke/fill +Thomas Jaeger Extended repeat modes for X +Björn Lindqvist Performance test cases +Kristian Høgsberg PDF backend, PS backend with meta-surfaces +Amaury Jacquot Documentation review, application testing +Adrian Johnson PDF backend improvement +Michael Johnson Bug fix for pre-C99 compilers +Jonathon Jongsma Fix documentation typos +Øyvind Kolås OpenVG backend, Bug fixes. Better default values. +Martin Kretzschmar Arithmetic fix for 64-bit architectures +Mathieu Lacage several bug/typo fixes +Dominic Lachowicz PDF conformance fix, fix image surface to zero out contents +Alexander Larsson Profiling and performance fixes. +Sylvestre Ledru Static analysis fixes. +Tor Lillqvist win32 build fixes, build scripts +Jinghua Luo Add bitmap glyph transformation, many freetype and glitz fixes +Luke-Jr Build fix for cross-compiling +Kjartan Maraas Several fixes for sparse, lots of debug help for multi-thread bugs +Nis Martensen Bug fix for sub paths +Jordi Mas Bug fix for cairo_show_text +Nicholas Miell Fixes for linking bugs on AMD64 +Eugeniy Meshcheryakov PS/PDF font subsetting improvements +Zakharov Mikhail Build fix for HP-UX +Christopher (Monty) Montgomery Performance fix (subimage_copy), multi-thread testing +Tim Mooney Fix test suite to compile with Solaris compiler +Jeff Muizelaar Patient, painful, pixman code merge. Many fixes for intricacies of dashing. +Yevgen Muntyan win32 build fix +Ravi Nanjundappa Static analysis fixes, test cases, skia backend update/fixes +Declan Naughton Fix documentation typos +Peter Nilsson Glitz backend +Henning Noren Fix memory leak +Geoff Norton Build fixes +Robert O'Callahan Const-correctness fixes, several new API functions for completeness (and to help mozilla) +Ian Osgood XCB backend maintenance +Benjamin Otte Refinements to cairo/perf timing, OpenGL backend fixups, random fixes +Mike Owens Bug fixes +Emmanuel Pacaud SVG backend +Keith Packard Original concept, polygon tessellation, dashing, font metrics rewrite +Stuart Parmenter Original GDI+ backend, win32 fixes +Alfred Peng Fixes for Sun compilers and for a memory leak +Christof Petig Build fixes related to freetype +Joonas Pihlaja Huge improvements to the tessellator performance +Mart Raudsepp Build fixes +David Reveman New pattern API, glitz backend +Calum Robinson Quartz backend +Pavel Roskin Several cleanups to eliminate warnings +Tim Rowley Quartz/ATSUI fixes, X server workarounds, win32 glyph path support, test case to expose gradient regression +Soeren Sandmann Lots of MMX love for pixman compositing +Uli Schlachter Some more XCB fixes +Torsten Schönfeld Build fixes +Jamey Sharp Surface/font backend virtualization, XCB backend +Jason Dorje Short Build fixes and bug fixes +Jeff Smith Fixes for intricacies of stroking code +Travis Spencer XCB backend fix +Bill Spitzak Build fix to find Xrender.h without xrender.pc, downscaling support +Zhe Su Add support for fontconfig's embeddedbitmap option +Owen Taylor Font rewrite, documentation, win32 backend +Pierre Tardy EGL support and testing, OpenVG backend +Karl Tomlinson Optimisation and obscure bug fixes (mozilla) +Alp Toker Fix several code/comment typos +Malcolm Tredinnick Documentation fixes +David Turner Optimize gradient calculations +Kalle Vahlman Allow perf reports to be compared across different platforms +Sasha Vasko Build fix to compile without xlib backend +Vladimir Vukicevic Quartz backend rewrite, win32/quartz maintenance +Jonathan Watt win32 fixes +Peter Weilbacher OS/2 backend +Dan Williams Implement MMX function to help OLPC +Chris Wilson Large-scale robustness improvements, (warn_unsed_result and malloc failure injection) +Carl Worth Original library, support for paths, images +Richard D. Worth Build fixes for cygwin +Kent Worsnop Fix PDF dashing bug +Dave Yeo Build fix for win32 + +(please let us know if we have missed anyone) diff --git a/local/recipes/libs/cairo/source/BUGS b/local/recipes/libs/cairo/source/BUGS new file mode 100644 index 0000000000..a2631e9f49 --- /dev/null +++ b/local/recipes/libs/cairo/source/BUGS @@ -0,0 +1,84 @@ +If you find a bug in cairo we would love to hear about it. We're also +trying to make cairo better, and learning about the bugs that users +encounter is an essential part of that. So we really appreciate the +extra effort users put in to providing high-quality bug reports. + +There are two acceptable ways to report cairo bugs, and you can choose +which you prefer: + +1) Gitlab bug tracking database: + + You can use the following web interface to report new bugs, follow + up on previous bug reports, and search for existing, known + bugs: + + https://gitlab.freedesktop.org/cairo/cairo/-/issues + + It is necessary to go through a quick account creation process, + (with email address verification), in order to be able to report + new bugs in gitlab. We apologize for any inconvenience that might + cause, and hope it won't prevent you from reporting bugs. + +2) Cairo mailing list: + + For people who cannot stand the gitlab interface, you can just + send an email to cairo mailing list (cairo@cairographics.org). The + mailing list only allows posting from subscribers, so use the + following page for subscription instructions: + + https://cairographics.org/lists + + Again, we apologize for any inconvenience this subscription step + might cause, but we've found it necessary to require this in order + to enjoy spam-free discussions on the list. + + If you don't actually _want_ to be a subscriber to the mailing + list, but just want to be able to send a message, the easiest thing + to do is to go through the subscription process, and then use the + preferences page to disable message delivery to your address. + +Which of the above you use to report bugs depends on your own +preferences. Some people find just typing an email message much easier +than using the web-based forms on gitlab. Others greatly prefer the +ability to check back on a specific bug entry in gitlab without +having to ask on the mailing list if an issue has been resolved. + +Regardless of which method you use, here are some general tips that +will help you improve the quality of your bug report, (which will help +in getting the bug fixed sooner): + +1) Check to see if the bug has been reported already. It's pretty easy + to run a search or two against the cairo product in the gitlab + database. Another place to look for known bugs is the cairo ROADMAP: + + https://cairographics.org/ROADMAP + + which shows a planned schedule of releases and which bug fixes are + being planned for each release. + +2) Provide an accurate description of the bug with detailed steps for + how we can reproduce the problem. + +3) If possible provide a minimal test case demonstrating the bug. A + great test case would be a minimal self-contained function in C or + python or whatever language you are using for cairo. The function + might accept nothing more than a cairo context, (cairo_t* in C). + +4) If you feel like being particularly helpful, you could craft this + minimal test case in the form necessary for cairo's test + suite. This isn't much more work than writing a minimal + function. Just look at the cairo/test/README file and imitate the + style of existing test cases. + + If you do submit a test case, be sure to include Copyright + information, (with the standard MIT licensing blurb if you want us + to include your test in the test case). Also, including a reference + image showing the expected result will be extremely useful. + +5) Finally, the best bug report also comes attached with a patch to + cairo to fix the bug. So send this too if you have it! Otherwise, + don't worry about it and we'll try to fix cairo when we can. + +Thanks, and have fun with cairo! + +-Carl diff --git a/local/recipes/libs/cairo/source/CODING_STYLE b/local/recipes/libs/cairo/source/CODING_STYLE new file mode 100644 index 0000000000..7e96c36d1a --- /dev/null +++ b/local/recipes/libs/cairo/source/CODING_STYLE @@ -0,0 +1,292 @@ +Cairo coding style. + +This document is intended to be a short description of the preferred +coding style for the cairo source code. Good style requires good +taste, which means this can't all be reduced to automated rules, and +there are exceptions. + +We want the code to be easy to understand and maintain, and consistent +style plays an important part in that, even if some of the specific +details seem trivial. If nothing else, this document gives a place to +put consistent answers for issues that would otherwise be arbitrary. + +Most of the guidelines here are demonstrated by examples, (which means +this document is quicker to read than it might appear given its +length). Most of the examples are positive examples that you should +imitate. The few negative examples are clearly marked with a comment +of /* Yuck! */. Please don't submit code to cairo that looks like any +of these. + +Indentation +----------- +Each new level is indented 4 more spaces than the previous level: + + if (condition) + do_something (); + +This may be achieved with space characters or a combination of tab +characters and space characters. It may not be achieved with tab +characters exclusively (see below). + +Tab characters +-------------- +The tab character must always be interpreted according to its +traditional meaning: + + Advance to the next column which is a multiple of 8. + +With this definition, even levels of indentation can be achieved with +a sequence of tab characters, while odd levels of indentation may +begin with a sequence of tab character but must end with 4 space +characters. + +Some programmers have been misled by certain text editors into +thinking that 4-space indentation can be achieved with tab characters +exclusively by changing the meaning of tab character to be "advance to +the next column which is a multiple of 4". Code formatted in this way, +making an assumption of a fictitious 4-character-tab will not be +accepted into cairo. + +The rationale here is that tabs are used in the code for lining things +up other than indentation, (see the Whitespace section below), and +changing the interpretation of tab from its traditional meaning will +break this alignment. + +Braces +------ +Most of the code in cairo uses bracing in the style of K&R: + + if (condition) { + do_this (); + do_that (); + } else { + do_the_other (); + } + +but some of the code uses an alternate style: + + if (condition) + { + do_this (); + do_that (); + } + else + { + do_the_other (); + } + +and that seems just fine. We won't lay down any strict rule on this +point, (though there should be some local consistency). If you came +here hoping to find some guidance, then use the first form above. + +If all of the substatements of an if statement are single statements, +the optional braces should not usually appear: + + if (condition) + do_this (); + else + do_that (); + +But the braces are mandatory when mixing single statement and compound +statements in the various clauses. For example, do not do this: + + if (condition) { + do_this (); + do_that (); + } else /* Yuck! */ + do_the_other (); + +And of course, there are exceptions for when the code just looks +better with the braces: + + if (condition) { + /* Note that we have to be careful here. */ + do_something_dangerous (with_care); + } + + if (condition && + other_condition && + yet_another) + { + do_something (); + } + +And note that this last example also shows a situation in which the +opening brace really needs to be on its own line. The following looks awful: + + if (condition && + other_condition && + yet_another) { /* Yuck! */ + do_something (); + } + +As we said above, legible code that is easy to understand and maintain +is the goal, not adherence to strict rules. + +Whitespace +---------- +Separate logically distinct chunks with a single newline. This +obviously applies between functions, but also applies within a +function or block and can even be used to good effect within a +structure definition: + + struct _cairo_gstate { + cairo_operator_t op; + + double tolerance; + + /* stroke style */ + double line_width; + cairo_line_cap_t line_cap; + cairo_line_join_t line_join; + double miter_limit; + + cairo_fill_rule_t fill_rule; + + double *dash; + int num_dashes; + double dash_offset; + + ... + } + +Use a single space before a left parenthesis, except where the +standard will not allow it, (eg. when defining a parameterized macro). + +Don't eliminate newlines just because things would still fit on one +line. This breaks the expected visual structure of the code making it +much harder to read and understand: + + if (condition) foo (); else bar (); /* Yuck! */ + +Do eliminate trailing whitespace (space or tab characters) on any +line. Also, avoid putting initial or final blank lines into any file, +and never use multiple blank lines instead of a single blank line. + +Do enable the default git pre-commit hook that detect trailing +whitespace for you and help you to avoid corrupting cairo's tree with +it. Do that as follows: + + chmod a+x .git/hooks/pre-commit + +You might also find the git-stripspace utility helpful which acts as a +filter to remove trailing whitespace as well as initial, final, and +duplicate blank lines. + +As a special case of the bracing and whitespace guidelines, function +definitions should always take the following form: + + void + my_function (argument) + { + do_my_things (); + } + +And function prototypes should similarly have the return type (and +associated specifiers and qualifiers) on a line above the function, so +that the function name is flush left. + +Break up long lines (> ~80 characters) and use whitespace to align +things nicely. For example the arguments in a long list to a function +call should all be aligned with each other: + + align_function_arguments (argument_the_first, + argument_the_second, + argument_the_third); + +And as a special rule, in a function prototype, (as well as in the +definition), whitespace should be inserted between the parameter types +and names so that the names are aligned: + + void + align_parameter_names_in_prototypes (const char *char_star_arg, + int int_arg, + double *double_star_arg, + double double_arg); + +Note that parameters with a * prefix are aligned one character to the +left so that the actual names are aligned. + +Managing nested blocks +---------------------- +Long blocks that are deeply nested make the code very hard to +read. Fortunately such blocks often indicate logically distinct chunks +of functionality that are begging to be split into their own +functions. Please listen to the blocks when they beg. + +In other cases, gratuitous nesting comes about because the primary +functionality gets buried in a nested block rather than living at the +primary level where it belongs. Consider the following: + + foo = malloc (sizeof (foo_t)); + if (foo) { /* Yuck! */ + ... + /* lots of code to initialize foo */ + ... + return SUCCESS; + } + return FAILURE; + +This kind of gratuitous nesting can be avoided by following a pattern +of handling exceptional cases early and returning: + + foo = malloc (sizeof (foo_t)); + if (foo == NULL) + return FAILURE; + + ... + /* lots of code to initialize foo */ + ... + return SUCCESS; + +The return statement is often the best thing to use in a pattern like +this. If it's not available due to additional nesting above which +require some cleanup after the current block, then consider splitting +the current block into a new function before using goto. + +Memory allocation +----------------- + +Because much of cairo's data consists of dynamically allocated arrays, +it's very easy to introduce integer overflow issues whenever malloc() +is called. Use the _cairo_malloc2(), _cairo_malloc3(), and +_cairo_malloc2_add1 macros to avoid these cases; these macros check +for overflow and will return NULL in that case. + + malloc (n * size) => _cairo_malloc_ab (n, size) + e.g. malloc (num_elts * sizeof(some_type)) => + _cairo_malloc2 (num_elts, sizeof(some_type)) + + malloc (a * b * size) => _cairo_malloc_abc (a, b, size) + e.g. malloc (width * height * 4) => + _cairo_malloc3 (width, height, 4) + + malloc (n * size + k) => _cairo_malloc_ab_plus_c (n, size, k) + e.g. malloc (num * sizeof(entry) + sizeof(header)) => + _cairo_malloc2k (num, sizeof(entry), sizeof(header)) + +In general, be wary of performing any arithmetic operations in an +argument to malloc. You should explicitly check for integer overflow +yourself in any more complex situations. + +Mode lines +---------- + +So given the rules above, what is the best way to simplify one's life as +a code monkey? Get your editor to do most of the tedious work of +beautifying your code! + +As a reward for reading this far, here are some mode lines for the more +popular editors: +/* + * vim:sw=4:sts=4:ts=8:tw=78:fo=tcroq:cindent:cino=\:0,(0 + * vim:isk=a-z,A-Z,48-57,_,.,-,> + * -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- + */ + + +TODO +---- + +Write rules for common editors to use this style. Also cleanup/unify +the modelines in the source files. diff --git a/local/recipes/libs/cairo/source/COPYING b/local/recipes/libs/cairo/source/COPYING new file mode 100644 index 0000000000..f54969f1c9 --- /dev/null +++ b/local/recipes/libs/cairo/source/COPYING @@ -0,0 +1,33 @@ +Cairo is free software. + +Every source file in the implementation[*] of cairo is available to be +redistributed and/or modified under the terms of either the GNU Lesser +General Public License (LGPL) version 2.1 or the Mozilla Public +License (MPL) version 1.1. Some files are available under more +liberal terms, but we believe that in all cases, each file may be used +under either the LGPL or the MPL. + +See the following files in this directory for the precise terms and +conditions of either license: + + COPYING-LGPL-2.1 + COPYING-MPL-1.1 + +Please see each file in the implementation for copyright and licensing +information, (in the opening comment of each file). + +[*] The implementation of cairo is contained entirely within the "src" +directory of the cairo source distribution. There are other components +of the cairo source distribution (such as the "test", "util", and "perf") +that are auxiliary to the library itself. None of the source code in these +directories contributes to a build of the cairo library itself, (libcairo.so +or cairo.dll or similar). + +These auxiliary components are also free software, but may be under +different license terms than cairo itself. For example, most of the +test cases in the perf and test directories are made available under +an MIT license to simplify any use of this code for reference purposes +in using cairo itself. Other files might be available under the GNU +General Public License (GPL), for example. 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See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + +Also add information on how to contact you by electronic and paper mail. + +You should also get your employer (if you work as a programmer) or +your school, if any, to sign a "copyright disclaimer" for the library, +if necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the + library `Frob' (a library for tweaking knobs) written by James + Random Hacker. + + , 1 April 1990 + Ty Coon, President of Vice + +That's all there is to it! + + diff --git a/local/recipes/libs/cairo/source/COPYING-MPL-1.1 b/local/recipes/libs/cairo/source/COPYING-MPL-1.1 new file mode 100644 index 0000000000..7714141d15 --- /dev/null +++ b/local/recipes/libs/cairo/source/COPYING-MPL-1.1 @@ -0,0 +1,470 @@ + MOZILLA PUBLIC LICENSE + Version 1.1 + + --------------- + +1. Definitions. + + 1.0.1. "Commercial Use" means distribution or otherwise making the + Covered Code available to a third party. + + 1.1. "Contributor" means each entity that creates or contributes to + the creation of Modifications. + + 1.2. "Contributor Version" means the combination of the Original + Code, prior Modifications used by a Contributor, and the Modifications + made by that particular Contributor. + + 1.3. "Covered Code" means the Original Code or Modifications or the + combination of the Original Code and Modifications, in each case + including portions thereof. + + 1.4. "Electronic Distribution Mechanism" means a mechanism generally + accepted in the software development community for the electronic + transfer of data. + + 1.5. "Executable" means Covered Code in any form other than Source + Code. + + 1.6. "Initial Developer" means the individual or entity identified + as the Initial Developer in the Source Code notice required by Exhibit + A. + + 1.7. "Larger Work" means a work which combines Covered Code or + portions thereof with code not governed by the terms of this License. + + 1.8. "License" means this document. + + 1.8.1. "Licensable" means having the right to grant, to the maximum + extent possible, whether at the time of the initial grant or + subsequently acquired, any and all of the rights conveyed herein. + + 1.9. "Modifications" means any addition to or deletion from the + substance or structure of either the Original Code or any previous + Modifications. When Covered Code is released as a series of files, a + Modification is: + A. Any addition to or deletion from the contents of a file + containing Original Code or previous Modifications. + + B. Any new file that contains any part of the Original Code or + previous Modifications. + + 1.10. "Original Code" means Source Code of computer software code + which is described in the Source Code notice required by Exhibit A as + Original Code, and which, at the time of its release under this + License is not already Covered Code governed by this License. + + 1.10.1. "Patent Claims" means any patent claim(s), now owned or + hereafter acquired, including without limitation, method, process, + and apparatus claims, in any patent Licensable by grantor. + + 1.11. "Source Code" means the preferred form of the Covered Code for + making modifications to it, including all modules it contains, plus + any associated interface definition files, scripts used to control + compilation and installation of an Executable, or source code + differential comparisons against either the Original Code or another + well known, available Covered Code of the Contributor's choice. The + Source Code can be in a compressed or archival form, provided the + appropriate decompression or de-archiving software is widely available + for no charge. + + 1.12. "You" (or "Your") means an individual or a legal entity + exercising rights under, and complying with all of the terms of, this + License or a future version of this License issued under Section 6.1. + For legal entities, "You" includes any entity which controls, is + controlled by, or is under common control with You. For purposes of + this definition, "control" means (a) the power, direct or indirect, + to cause the direction or management of such entity, whether by + contract or otherwise, or (b) ownership of more than fifty percent + (50%) of the outstanding shares or beneficial ownership of such + entity. + +2. Source Code License. + + 2.1. The Initial Developer Grant. + The Initial Developer hereby grants You a world-wide, royalty-free, + non-exclusive license, subject to third party intellectual property + claims: + (a) under intellectual property rights (other than patent or + trademark) Licensable by Initial Developer to use, reproduce, + modify, display, perform, sublicense and distribute the Original + Code (or portions thereof) with or without Modifications, and/or + as part of a Larger Work; and + + (b) under Patents Claims infringed by the making, using or + selling of Original Code, to make, have made, use, practice, + sell, and offer for sale, and/or otherwise dispose of the + Original Code (or portions thereof). + + (c) the licenses granted in this Section 2.1(a) and (b) are + effective on the date Initial Developer first distributes + Original Code under the terms of this License. + + (d) Notwithstanding Section 2.1(b) above, no patent license is + granted: 1) for code that You delete from the Original Code; 2) + separate from the Original Code; or 3) for infringements caused + by: i) the modification of the Original Code or ii) the + combination of the Original Code with other software or devices. + + 2.2. Contributor Grant. + Subject to third party intellectual property claims, each Contributor + hereby grants You a world-wide, royalty-free, non-exclusive license + + (a) under intellectual property rights (other than patent or + trademark) Licensable by Contributor, to use, reproduce, modify, + display, perform, sublicense and distribute the Modifications + created by such Contributor (or portions thereof) either on an + unmodified basis, with other Modifications, as Covered Code + and/or as part of a Larger Work; and + + (b) under Patent Claims infringed by the making, using, or + selling of Modifications made by that Contributor either alone + and/or in combination with its Contributor Version (or portions + of such combination), to make, use, sell, offer for sale, have + made, and/or otherwise dispose of: 1) Modifications made by that + Contributor (or portions thereof); and 2) the combination of + Modifications made by that Contributor with its Contributor + Version (or portions of such combination). + + (c) the licenses granted in Sections 2.2(a) and 2.2(b) are + effective on the date Contributor first makes Commercial Use of + the Covered Code. + + (d) Notwithstanding Section 2.2(b) above, no patent license is + granted: 1) for any code that Contributor has deleted from the + Contributor Version; 2) separate from the Contributor Version; + 3) for infringements caused by: i) third party modifications of + Contributor Version or ii) the combination of Modifications made + by that Contributor with other software (except as part of the + Contributor Version) or other devices; or 4) under Patent Claims + infringed by Covered Code in the absence of Modifications made by + that Contributor. + +3. Distribution Obligations. + + 3.1. Application of License. + The Modifications which You create or to which You contribute are + governed by the terms of this License, including without limitation + Section 2.2. The Source Code version of Covered Code may be + distributed only under the terms of this License or a future version + of this License released under Section 6.1, and You must include a + copy of this License with every copy of the Source Code You + distribute. You may not offer or impose any terms on any Source Code + version that alters or restricts the applicable version of this + License or the recipients' rights hereunder. However, You may include + an additional document offering the additional rights described in + Section 3.5. + + 3.2. Availability of Source Code. + Any Modification which You create or to which You contribute must be + made available in Source Code form under the terms of this License + either on the same media as an Executable version or via an accepted + Electronic Distribution Mechanism to anyone to whom you made an + Executable version available; and if made available via Electronic + Distribution Mechanism, must remain available for at least twelve (12) + months after the date it initially became available, or at least six + (6) months after a subsequent version of that particular Modification + has been made available to such recipients. You are responsible for + ensuring that the Source Code version remains available even if the + Electronic Distribution Mechanism is maintained by a third party. + + 3.3. Description of Modifications. + You must cause all Covered Code to which You contribute to contain a + file documenting the changes You made to create that Covered Code and + the date of any change. You must include a prominent statement that + the Modification is derived, directly or indirectly, from Original + Code provided by the Initial Developer and including the name of the + Initial Developer in (a) the Source Code, and (b) in any notice in an + Executable version or related documentation in which You describe the + origin or ownership of the Covered Code. + + 3.4. Intellectual Property Matters + (a) Third Party Claims. + If Contributor has knowledge that a license under a third party's + intellectual property rights is required to exercise the rights + granted by such Contributor under Sections 2.1 or 2.2, + Contributor must include a text file with the Source Code + distribution titled "LEGAL" which describes the claim and the + party making the claim in sufficient detail that a recipient will + know whom to contact. If Contributor obtains such knowledge after + the Modification is made available as described in Section 3.2, + Contributor shall promptly modify the LEGAL file in all copies + Contributor makes available thereafter and shall take other steps + (such as notifying appropriate mailing lists or newsgroups) + reasonably calculated to inform those who received the Covered + Code that new knowledge has been obtained. + + (b) Contributor APIs. + If Contributor's Modifications include an application programming + interface and Contributor has knowledge of patent licenses which + are reasonably necessary to implement that API, Contributor must + also include this information in the LEGAL file. + + (c) Representations. + Contributor represents that, except as disclosed pursuant to + Section 3.4(a) above, Contributor believes that Contributor's + Modifications are Contributor's original creation(s) and/or + Contributor has sufficient rights to grant the rights conveyed by + this License. + + 3.5. Required Notices. + You must duplicate the notice in Exhibit A in each file of the Source + Code. If it is not possible to put such notice in a particular Source + Code file due to its structure, then You must include such notice in a + location (such as a relevant directory) where a user would be likely + to look for such a notice. If You created one or more Modification(s) + You may add your name as a Contributor to the notice described in + Exhibit A. You must also duplicate this License in any documentation + for the Source Code where You describe recipients' rights or ownership + rights relating to Covered Code. You may choose to offer, and to + charge a fee for, warranty, support, indemnity or liability + obligations to one or more recipients of Covered Code. However, You + may do so only on Your own behalf, and not on behalf of the Initial + Developer or any Contributor. You must make it absolutely clear than + any such warranty, support, indemnity or liability obligation is + offered by You alone, and You hereby agree to indemnify the Initial + Developer and every Contributor for any liability incurred by the + Initial Developer or such Contributor as a result of warranty, + support, indemnity or liability terms You offer. + + 3.6. Distribution of Executable Versions. + You may distribute Covered Code in Executable form only if the + requirements of Section 3.1-3.5 have been met for that Covered Code, + and if You include a notice stating that the Source Code version of + the Covered Code is available under the terms of this License, + including a description of how and where You have fulfilled the + obligations of Section 3.2. The notice must be conspicuously included + in any notice in an Executable version, related documentation or + collateral in which You describe recipients' rights relating to the + Covered Code. You may distribute the Executable version of Covered + Code or ownership rights under a license of Your choice, which may + contain terms different from this License, provided that You are in + compliance with the terms of this License and that the license for the + Executable version does not attempt to limit or alter the recipient's + rights in the Source Code version from the rights set forth in this + License. If You distribute the Executable version under a different + license You must make it absolutely clear that any terms which differ + from this License are offered by You alone, not by the Initial + Developer or any Contributor. You hereby agree to indemnify the + Initial Developer and every Contributor for any liability incurred by + the Initial Developer or such Contributor as a result of any such + terms You offer. + + 3.7. Larger Works. + You may create a Larger Work by combining Covered Code with other code + not governed by the terms of this License and distribute the Larger + Work as a single product. In such a case, You must make sure the + requirements of this License are fulfilled for the Covered Code. + +4. Inability to Comply Due to Statute or Regulation. + + If it is impossible for You to comply with any of the terms of this + License with respect to some or all of the Covered Code due to + statute, judicial order, or regulation then You must: (a) comply with + the terms of this License to the maximum extent possible; and (b) + describe the limitations and the code they affect. Such description + must be included in the LEGAL file described in Section 3.4 and must + be included with all distributions of the Source Code. Except to the + extent prohibited by statute or regulation, such description must be + sufficiently detailed for a recipient of ordinary skill to be able to + understand it. + +5. Application of this License. + + This License applies to code to which the Initial Developer has + attached the notice in Exhibit A and to related Covered Code. + +6. Versions of the License. + + 6.1. New Versions. + Netscape Communications Corporation ("Netscape") may publish revised + and/or new versions of the License from time to time. Each version + will be given a distinguishing version number. + + 6.2. Effect of New Versions. + Once Covered Code has been published under a particular version of the + License, You may always continue to use it under the terms of that + version. You may also choose to use such Covered Code under the terms + of any subsequent version of the License published by Netscape. No one + other than Netscape has the right to modify the terms applicable to + Covered Code created under this License. + + 6.3. Derivative Works. + If You create or use a modified version of this License (which you may + only do in order to apply it to code which is not already Covered Code + governed by this License), You must (a) rename Your license so that + the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape", + "MPL", "NPL" or any confusingly similar phrase do not appear in your + license (except to note that your license differs from this License) + and (b) otherwise make it clear that Your version of the license + contains terms which differ from the Mozilla Public License and + Netscape Public License. (Filling in the name of the Initial + Developer, Original Code or Contributor in the notice described in + Exhibit A shall not of themselves be deemed to be modifications of + this License.) + +7. DISCLAIMER OF WARRANTY. + + COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, + WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF + DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. + THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE + IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, + YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE + COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER + OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF + ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER. + +8. TERMINATION. + + 8.1. This License and the rights granted hereunder will terminate + automatically if You fail to comply with terms herein and fail to cure + such breach within 30 days of becoming aware of the breach. All + sublicenses to the Covered Code which are properly granted shall + survive any termination of this License. Provisions which, by their + nature, must remain in effect beyond the termination of this License + shall survive. + + 8.2. If You initiate litigation by asserting a patent infringement + claim (excluding declatory judgment actions) against Initial Developer + or a Contributor (the Initial Developer or Contributor against whom + You file such action is referred to as "Participant") alleging that: + + (a) such Participant's Contributor Version directly or indirectly + infringes any patent, then any and all rights granted by such + Participant to You under Sections 2.1 and/or 2.2 of this License + shall, upon 60 days notice from Participant terminate prospectively, + unless if within 60 days after receipt of notice You either: (i) + agree in writing to pay Participant a mutually agreeable reasonable + royalty for Your past and future use of Modifications made by such + Participant, or (ii) withdraw Your litigation claim with respect to + the Contributor Version against such Participant. If within 60 days + of notice, a reasonable royalty and payment arrangement are not + mutually agreed upon in writing by the parties or the litigation claim + is not withdrawn, the rights granted by Participant to You under + Sections 2.1 and/or 2.2 automatically terminate at the expiration of + the 60 day notice period specified above. + + (b) any software, hardware, or device, other than such Participant's + Contributor Version, directly or indirectly infringes any patent, then + any rights granted to You by such Participant under Sections 2.1(b) + and 2.2(b) are revoked effective as of the date You first made, used, + sold, distributed, or had made, Modifications made by that + Participant. + + 8.3. If You assert a patent infringement claim against Participant + alleging that such Participant's Contributor Version directly or + indirectly infringes any patent where such claim is resolved (such as + by license or settlement) prior to the initiation of patent + infringement litigation, then the reasonable value of the licenses + granted by such Participant under Sections 2.1 or 2.2 shall be taken + into account in determining the amount or value of any payment or + license. + + 8.4. In the event of termination under Sections 8.1 or 8.2 above, + all end user license agreements (excluding distributors and resellers) + which have been validly granted by You or any distributor hereunder + prior to termination shall survive termination. + +9. LIMITATION OF LIABILITY. + + UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT + (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL + DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, + OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR + ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY + CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, + WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER + COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN + INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF + LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY + RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW + PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE + EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO + THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU. + +10. U.S. GOVERNMENT END USERS. + + The Covered Code is a "commercial item," as that term is defined in + 48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer + software" and "commercial computer software documentation," as such + terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48 + C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995), + all U.S. Government End Users acquire Covered Code with only those + rights set forth herein. + +11. MISCELLANEOUS. + + This License represents the complete agreement concerning subject + matter hereof. If any provision of this License is held to be + unenforceable, such provision shall be reformed only to the extent + necessary to make it enforceable. This License shall be governed by + California law provisions (except to the extent applicable law, if + any, provides otherwise), excluding its conflict-of-law provisions. + With respect to disputes in which at least one party is a citizen of, + or an entity chartered or registered to do business in the United + States of America, any litigation relating to this License shall be + subject to the jurisdiction of the Federal Courts of the Northern + District of California, with venue lying in Santa Clara County, + California, with the losing party responsible for costs, including + without limitation, court costs and reasonable attorneys' fees and + expenses. The application of the United Nations Convention on + Contracts for the International Sale of Goods is expressly excluded. + Any law or regulation which provides that the language of a contract + shall be construed against the drafter shall not apply to this + License. + +12. RESPONSIBILITY FOR CLAIMS. + + As between Initial Developer and the Contributors, each party is + responsible for claims and damages arising, directly or indirectly, + out of its utilization of rights under this License and You agree to + work with Initial Developer and Contributors to distribute such + responsibility on an equitable basis. Nothing herein is intended or + shall be deemed to constitute any admission of liability. + +13. MULTIPLE-LICENSED CODE. + + Initial Developer may designate portions of the Covered Code as + "Multiple-Licensed". "Multiple-Licensed" means that the Initial + Developer permits you to utilize portions of the Covered Code under + Your choice of the NPL or the alternative licenses, if any, specified + by the Initial Developer in the file described in Exhibit A. + +EXHIBIT A -Mozilla Public License. + + ``The contents of this file are subject to the Mozilla Public License + Version 1.1 (the "License"); you may not use this file except in + compliance with the License. You may obtain a copy of the License at + http://www.mozilla.org/MPL/ + + Software distributed under the License is distributed on an "AS IS" + basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the + License for the specific language governing rights and limitations + under the License. + + The Original Code is ______________________________________. + + The Initial Developer of the Original Code is ________________________. + Portions created by ______________________ are Copyright (C) ______ + _______________________. All Rights Reserved. + + Contributor(s): ______________________________________. + + Alternatively, the contents of this file may be used under the terms + of the _____ license (the "[___] License"), in which case the + provisions of [______] License are applicable instead of those + above. If you wish to allow use of your version of this file only + under the terms of the [____] License and not to allow others to use + your version of this file under the MPL, indicate your decision by + deleting the provisions above and replace them with the notice and + other provisions required by the [___] License. If you do not delete + the provisions above, a recipient may use your version of this file + under either the MPL or the [___] License." + + [NOTE: The text of this Exhibit A may differ slightly from the text of + the notices in the Source Code files of the Original Code. You should + use the text of this Exhibit A rather than the text found in the + Original Code Source Code for Your Modifications.] + diff --git a/local/recipes/libs/cairo/source/HACKING b/local/recipes/libs/cairo/source/HACKING new file mode 100644 index 0000000000..b771e58139 --- /dev/null +++ b/local/recipes/libs/cairo/source/HACKING @@ -0,0 +1,185 @@ +Hacking Cairo +============= + +This is a high-level guide to how the cairo distribution is organized +and how to get started hacking on it. Make sure you read through the +file README before continuing. + + +Coding Style +------------ + +The easiest way to write code in the cairo style is to follow code close +to the place you are hacking, but if you want a written down set of +rules, see file CODING_STYLE. + +Files for backends that depend on languages other than C (C++ or +Objective C for example) may use features specific to those languages. +For example, "//" comments are allowed, though discouraged, in those files. + + +Contact +------- + +Various ways to get in touch with other cairo developers and maintainers +have been enumerated at: + + https://cairographics.org/contact/ + +Most of that information is also reflected in the following sections. + + +Mailing Lists +------------- + +There are various mailing lists that are useful when developing cairo +code. A complete list is always available at: + + https://cairographics.org/lists/ + +It is recommended that cairo developers subscribe to all those lists. +The cairo list by itself generates much more traffic than the others +combined, so developers and contributors should not be intimidated by +the -commit and -bugs lists. + + +Bug Tracking System +------------------- + +We use a standard gitlab bug tracking system available at: + + https://gitlab.freedesktop.org/cairo/cairo/-/issues + +See file named BUGS for detailed information on reporting bugs. In short, +for straight bug reports, it's best to report them there such that they +are not lost or forgotten. For discussion of new features or +complicated issues, use the mailing list. + + +IRC +--- + +It's a great idea to hang around the cairo IRC channel if you have any +interest in cairo. We use the #cairo channel on irc.freenode.net. + +Make sure you introduce yourself if your nick is not easy to match to +the name you use on the mailing list. + + +Version Control System +---------------------- + +We use /git/ for version control. See: + + https://cairographics.org/download/ + +For more information on using git, see: + + https://freedesktop.org/wiki/Infrastructure/git/ + + +Build System +------------ + +We use the autotools build system with cairo, but with various +customizations and advanced features. Reading configure.in is your +best bet to understanding it, or just ask on IRC. + +To bootstrap the build system run ./autogen.sh. After that the +regular "./configure; make; make install" sequence can be used. +See file named INSTALL for more details. + +There is limited support for a win32 build system. +See README.win32 and Makefile.win32 files in various directories. + + +ChangeLog +--------- + +We generate ChangeLog files automatically from the git commit log. +No manual ChangeLog writing is necessary. + + +Copyrights and Licensing +------------------------ + +The cairo library is dual-licensed under LGPL and MPL. See the file +named COPYING for details. The test suites are more liberal, and are +allowed to include GPL code. + +When writing new code, update the file headers to add your (or your +employers) copyright line and contributor line. If adding new files +or splitting a file, copy the file header from other files. + + +Source Code +----------- + +The library source code and headers live in the src/ directory. +See src/README for more information. + + +Regression Test Suite +--------------------- + +Cairo has a fairly extensive regression-testing suite. Indeed, without +these tests it would be impossible to make a cairo release without +introducing tens of regressions. We still manage to introduce +regressions with each release even with the hundreds of tests we already +have. + +The regression test suite is located under the test/ directory. +See test/README for more information. + + +Performance Test Suite +---------------------- + +There is a performance test suite located under the perf/ directory. +A collection of traces of real-world behavior are also available in the +cairo-traces repository, which can be used in isolation or hooked in +with the main performance test suite. See perf/README for more +information. + + +Boilerplate +----------- + +The cairo-boilerplate is a small private library used by the regression +and performance test suites. It includes the boilerplace code needed +to initialize various backends for the test suites, as well as allow +tweaking some of the internal workings of the backends for more testing. + +The boilerplate code is localted under the boilerplate/ directory. +See boilerplate/README for more information. + + +Documentation +------------- + +Cairo uses the gtk-doc system for reference API documentation. + +The reference documentation is located under doc/public. +See doc/public/README for more information. + +For more documentation including frequently asked questions, tutorials, +samples, roadmap, todo list, etc visit: + + https://cairographics.org/documentation/ + +Some of those should gradually be moved to doc/. + + +Utilities +--------- + +We have developed several utilities useful for writing cairo or code +that uses cairo. These tools can be found under the util/ directory. +See util/README for more information. + + +Releasing +--------- + +Now you are a cairo maintainer, so what? See file named RELEASING. + diff --git a/local/recipes/libs/cairo/source/INSTALL b/local/recipes/libs/cairo/source/INSTALL new file mode 100644 index 0000000000..2229680496 --- /dev/null +++ b/local/recipes/libs/cairo/source/INSTALL @@ -0,0 +1,47 @@ +Installation Instructions +========================= + +Requirements +------------ +As well as the requirements listed in README, the meson build also requires: + meson (http://mesonbuild.com) + ninja (http://ninja-build.org) + +Basic Installation +------------------ + meson setup $builddir + ninja -C $builddir + ninja -C $builddir install + +where $builddir is the name of the directory where the build artifacts +will be written to. + +Some of the common options that can be used with "meson setup" include: + +Set the install prefix. + --prefix= + +Set the build type. Some common build types include "debug" and "release" + --buildtype= + +Compiler and linker flags can be set with the CFLAGS and LDFLAGS +environment variables. + +Configuring cairo backends +-------------------------- +After running "meson build", "meson configure" can be used to display +or modify the build configuration. + +eg + + Display configuration: + meson configure $builddir + + Enable pdf and disable ps: + meson configure $builddir -Dpdf=enabled -Dps=disabled + +The "-D" options can also be used with "meson setup" + +Tests +----- +Refer to test/README diff --git a/local/recipes/libs/cairo/source/NEWS b/local/recipes/libs/cairo/source/NEWS new file mode 100644 index 0000000000..71bec98740 --- /dev/null +++ b/local/recipes/libs/cairo/source/NEWS @@ -0,0 +1,8349 @@ +Release 1.18.4 (2025-03-08 Emmanuele Bassi ) +============================================================== + +A new stable release. + +The dependency on LZO has been made optional through a build time +configuration toggle. [!580] + +You can build Cairo against a Freetype installation that does not have the +FT_Color type. [#792] + +Cairo tests now build on Solaris 11.4 with GCC 14. [!599] + +The DirectWrite backend now builds on MINGW 11. [!600] + +Thanks to Luca Bacci, the DirectWrite backend now supports font +variations and proper glyph coverage. [#877, !602] + +Support for Windows 98 has been removed. The minimum requirement for +Windows is now Vista. + +Release 1.18.2 (2024-09-01 Emmanuele Bassi ) +============================================================== + +A new stable release. + +The malloc-stats code has been removed from the tests directory [#640]; the +canonical location for it is: https://github.com/behdad/malloc-stats + +Cairo now requires a version of pixman equal to, or newer than, 0.40. [!522] + +There have been multiple build fixes for newer versions of GCC [!525, !542]; +for MSVC [#808]; for Solaris [!540]; and on macOS 10.7 [#810]. + +PNG errors caused by loading malformed data are correctly propagated to +callers, so they can handle the case. [!524] + +Both stroke and fill colors are now set when showing glyphs on a PDF +surface. [#813] + +All the font options are copied when creating a fallback font object. [#819] + +When drawing text on macOS, Cairo now tries harder to select the appropriate +font name. [#811] + +Cairo now prefers the COLRv1 table inside a font, if one is available. [!537] + +Cairo requires a C11 toolchain when building. [!479] + +Release 1.18.0 (2023-09-20 Emmanuele Bassi ) +============================================================== + +The first stable cairo release in five years should be cause for celebration. + +All the API added in the 1.17 development cycle is now considered stable, and +will not change. + +Many thanks to all the contributors for this release. + +The cairo-sphinx tool has been removed; we could not find any instruction on +how to use it, and no user answered our call for help. If you were using +cairo-sphinx, please reach out to the cairo maintainers. + +Cairo now implements Type 3 color fonts for PDF. Thanks to Adrian Johnson for +his work on this feature. + +Khaled Hosny contributed multiple documentation fixes, to ensure that the +cairo API reference is up to date. Khaled also fixed multiple compiler +warnings generated when building cairo. + +The XML surface has been removed; it was disabled by default when building +cairo, and we could not find any downstream distributor that would enable +it. + +The Tee surface is now automatically enabled. Downstream distributors of +cairo have been enabling for years it in order to build Firefox. + +Fujii Hironori and Adrian Johnson fixed multiple issues with the DWrite +font backend. + +John Ralls improved the Quartz surface; mainly, Quartz surfaces now use +the main display ColorSpace, speeding up rendering operations. + +Cairo now hides all private symbols by default on every platform; the old +"slim" symbols hack to alias internally used symbols has been dropped, in +favor of using `-Bsymbolic-functions` with toolchains that support it. + +Uli Schlachter fixed multiple memory leaks in the code base and test suite, +and helped with many reviews and general maintenance. + +Marc Jeanmougin added new API to expose the Pixman dithering filter to cairo +patterns; this is currently implemented only for image surfaces. + +Release 1.17.8 (2023-01-30 Emmanuele Bassi ) +============================================================== + +A new cairo snapshot! And it only took less than one year, this time! + +Many thanks to everyone who contributed to cairo, and especially +to (in no particular order): + +- Adrian Johnson +- Khaled Hosny +- Behdad Esfahbod +- Matthias Clasen +- Uli Schlachter +- Manuel Stoeckl +- Fujii Hironori +- Tim-Philipp Müller +- Luca Bacci +- Caolán McNamara +- John Ralls + +In a continuing effort to reduce the amount of legacy code, and increase +the long-term maintainability of cairo, the following backends have been +removed: + +- GL and GLES drawing + +Additionally, cairo's Autotools build system has been removed; from now on, +cairo will only support the Meson build system. While the end result should +be identical, further testing is appreciated. + +In this snapshot, cairo gained support for rendering COLRv1 fonts, and +rendering SVG and COLRv1 fonts with custom palettes. + +Support for macOS and Windows has been improved, with lots of build and bug +fixes. + +Lots of safety issues have been fixed, with array bounds checking and +plugging memory leaks, as well as fixes for bugs identified via fuzzying. + +This is going to be the last snapshot of the 1.17 development cycle; we only +expect minor bug fixing and improvements until the 1.18.0 release. + +Release 1.17.6 (2022-03-18 Emmanuele Bassi ) +============================================================== + +I spy with my little eye… a cairo snapshot! + +First of all, many, many thanks to everyone who contributed to cairo +during this development cycle. A special thank you goes to: + +- Adrian Johnson +- Uli Schlachter + +for their tireless efforts in ensuring that the lights are still on +in the cairo project. + +This snapshot sees the removal of the following backends and platform +support: + +- Qt4 +- BeOS +- OS/2 +- DirectFB +- DRM +- Cogl +- OpenVG + +Thanks to all past contributors for their work on them. If you were using +any of these backends then you will need to stick to cairo 1.16. + +To offset the removal of the backends above, Adrian Johnson landed the +DWrite font rendering backend on Windows. + +There have been multiple improvements in the Quartz backend, courtesy of +John Ralls. + +Tim-Philipp Müller has kept the Meson build in top shape. + +This snapshot is going to be the **last** release of cairo with the +Autotools build system. The Meson build has seen many improvements and +it is considerably easier to maintain and faster to build. + +Release 1.17.4 (2020-11-27 Bryce Harrington ) +======================================================================== + +Thank you to the many people who have contributed the large number of +bug fixes and refinements since 1.17.2. + +A particularly noteworthy improvement in this release is the addition of +the meson build system as an alternative to autotools. Autotools is +still used for producing the releases, so will be the default in the +tarball and presumably will still be preferred by distro packagers of +Cairo. It should be possible to build the release tarball using meson, +but as this is new functionality consider it still a work in progress. +The meson configuration has striven to track the autotools +implementation but be aware there may still be some differences between +the two. + +Continuous Integration configurations have been added that enable +testing on a variety of platforms including Fedora, Windows MSVC, etc. +This work has helped in identifying updates and fixes including +adjusting to changes in API calls in dependencies like rsvg and +fontconfig, and to fix platform-specific build issues. + +The cogl Cairo backend underwent significant development this cycle. +Cogl provides GPU accelerated drawing support. The development work +includes implementation of core functionality, performance +optimizations, and stabilization. + +Subpixel positioning support allows improved glyph outlines with the +FreeType font backend. + +For a complete log of changes, please see + + https://cairographics.org/releases/ChangeLog.1.17.4 + +[On a personal note, this will be my last release for Cairo. My Cairo +time availability has been non-existent (particularly this crazy past +year). The release process is well documented and hopefully will help +whomever picks up the baton from here.] + + +Release 1.17.2 (2019-01-31 Bryce Harrington ) +======================================================================== +This snapshot provides the new support for writing floating point +formats as 16 bpc PNGs, with support for RGBA128F and RGB96F formats. +This new feature increases Cairo's pixman version requirement to 0.36.0. + +Beyond this are a range of bugfixes and some work on establishing CI for +Cairo. + +For a complete log of changes, please see + + https://cairographics.org/releases/ChangeLog.1.17.2 + +API Changes +----------- +None + +Dependency Changes +------------------ +pixman 0.36.0 + + +Release 1.16.0 (2018-10-19 Bryce Harrington ) +======================================================================== +This new stable release incorporates a number of improvements made in +the four years since 1.14.0. + +Of particular note is a wealth of work by Adrian Johnson to enhance PDF +functionality, including restoring support for MacOSX 10.4, metadata, +hyperlinks, and more. + +Much attention also went into fonts, including new colored emoji glyph +support, variable fonts, and fixes for various font idiosyncrasies. + +Other noteworthy changes include GLESv3 support for the cairo_gl +backend, tracking of SVG units in generated SVG documents, and cleanups +for numerous test failures and related issues in the PDF and Postscript +backends. + +For a complete log of changes, please see + + https://cairographics.org/releases/ChangeLog.1.16.0 + +Features and Enhancements +------------------------- +* Add support for OpenGL ES 3.0 to the gl backend. +* The PDF backend has gained support for a range of widely used + features, including thumbnails, page labels, metadata, document + outlines, structured text, hyperlinks, and tags. Tags permit adding + logical info such as headings, tables, figures, etc. that facilitates + indexing, accessibility, text reflow, searching, and extraction of the + tagged items to other software. For details on this new PDF + functionality, see: + https://lists.cairographics.org/archives/cairo/2016-June/027427.html +* Variable font support. Variable fonts are single font files with + various typography characteristics, such as weight or slant, that users + of the font can adjust between two points. Effectively this enables a + single font to behave as multiple fonts. +* Restore MacOSX 10.4 support. Cairo had dropped 10.4 support when + moving to the CoreText API. Now we automatically detect which API to + use via dynamic linking, so can resume supporting this older version + of MacOSX. +* Support colored emoji glyphs, stored as PNG images in OpenType fonts. +* Skia backend is removed +* Use Reusable streams for forms in Level 3 Postscript. +* Add CAIRO_MIME_TYPE_EPS mime type for embedding EPS files. +* Add CCITT_FAX mime type for PDF and PS surfaces +* svg: add a new function to specify the SVG document unit + (Bug #90166) +* Use UTF-8 filenames on Windows + + +API Changes +----------- +Several new APIs were added. No existing APIs were altered. + +New PDF functionality: + + * cairo_pdf_surface_add_outline + * cairo_pdf_surface_set_metadata + * cairo_pdf_surface_set_page_label + * cairo_pdf_surface_set_thumbnail_size + * cairo_tag_begin + * cairo_tag_end + * CAIRO_STATUS_TAG_ERROR + +New error status items for problems relating to PDF tagging: + + * CAIRO_STATUS_WIN32_GDI_ERROR + * CAIRO_STATUS_FREETYPE_ERROR + * CAIRO_STATUS_PNG_ERROR + + New error status items for handling of GDI, libfreetype, and libpng + errors, respectively. + + +Setting up Win32 surfaces for HDC with alpha channels: + + * cairo_win32_surface_create_with_format + + New API for added PDF functionality (see above), and new error + status item for problems relating to PDF tagging. + +Variable fonts: + + * cairo_font_options_get_variations + * cairo_font_options_set_variations + +Tracking units in SVG documents: + + * cairo_svg_surface_set_document_unit + * cairo_svg_surface_get_document_unit + + + +Dependency Changes +------------------ +None + + +Performance Optimizations +------------------------- +None + + +Notable Bug Fixes +----------------- +* Fix thin lines that don't show up when printing in Inkscape due to + overly aggressive culling. + (Bug #77298) +* Fix playback of recording surfaces into PDF surfaces, where objects + with negative coordinates were not getting drawn. To address this, + the coordinate systems for PDF and PS have been changed to match + cairo's coordinate system. This allows recording surfaces to be + emitted in cairo coordinates, and results in the same origin being + used for all operations when using the recording surface XObject. + Test cases for PDF and PS have also been updated accordingly. + (Bug #89232) +* Fix "invalidfont" error on some printers when printing PDFs with + embedded fonts that have glyphs (such as spaces) with + num_contours == 0. (Bug #79897) +* Fix missing glyphs such as thin dashes, which get scaled to 0 in + userspace and thus have their drawing operations culled. (Bug #94615) +* Fix other oddities caused by variously idiosyncratic fonts. +* Fix a data race in freed_pool discovered by Firefox's cairo usage. + The patch adads atomic int load and store functions, with relaxed + memory ordering. (Bug #90318) +* Handle SOURCE and CLEAR operators when painting color glyphs. + (Bug #102661) +* Fix falling back to system font with PDFs using certain embedded + fonts, due to truncated font names. + (Bug #103249) +* Prevent curved strokes in small ctms from being culled from vector + surfaces + (Bug #103071) +* Fix assertion hit with PDFs using Type 4 fonts rendered with user + fonts, due to error when destroying glyph page. + (Bug #103335) +* Prevent invalid ptr access for > 4GB images. + (Bug #98165) +* pdf: Fix internal links pointing to other pages, by pre-calculating + page heights so that link positions can be calculated more accurately. +* Fix error reporting in the xcb backend if fallback fails. Instead of + returning NULL when the X11 server can't do some operation, return a + surface in an error state. +* Clarify documentation regarding device scale inheritance and the units + used in cairo_surface_create_similar_image. + (Bug #99094) +* Call XSync in the xlib backend before setting the error handler to + ignore errors for certain requests, to make sure all pending errors + are handled first. +* Fix regression with text containing space character on Win32. + (Bug: https://gitlab.freedesktop.org/cairo/cairo/issues/339) + +For a more comprehensive listing of fixed bugs, see the release notes for the +individual 1.15.x releases. + + +Release 1.15.14 (2018-09-19 Bryce Harrington ) +============================================================================ +We're nearly ready to finalize the 1.16.0 release, so this snapshot +can be considered a beta for 1.16. + +The most notable change this release is a performance optimization for +windows, discussed below. Other than that, much of the development +focus was on final polish and stability as we prepare for 1.16. + +Some attention went into getting the testsuite passing at least for the +image backend. The Cairo testsuite depends on external software like +Pixman, and changes in the rendering behavior of these dependencies +change test behavior, leading to false positives. + +Results from the Coverity static testing tool were also reviewed. Most +of the issues flagged were false positives, but there were several +legitimate problems found and fixed. + +For a complete log of changes, please see + + https://cairographics.org/releases/ChangeLog.1.15.14 + +Features and Enhancements +------------------------- +* Add more FreeeType font color conversions to support COLR/CPAL +* Update test reference images against current pixman + +API Changes +----------- +None + +Dependency Changes +------------------ +None + +Performance Optimizations +------------------------- +Vasily Galkin introduced a Win32 performance optimization for +CAIRO_OPERATOR_SOURCE when copying data from a backbuffer to an argb32 +surface corresponding to a Win32 DC. With this, argb32 drawing should +perform as fast as typical dibsection-buffered GDI drawing. See the +Cairo mailing list for April 2018 for data and discussion of the +performance improvements. + + +Bug Fixes +--------- +* Fix crash when rendering Microsoft's Segoe UI Emoji Regular font. +* Fix build breakage with glesv3 enabled due to non-existant glesv3.pc. +* Fix memory leaks found by Coverity +* Fix incorrect null ptr handling found by Coverity +* Fix test compilation when font-config is disabled +* Use _cairo_malloc instead of malloc (Bug #101547) (CVE-2017-9814) +* Fix assertion failure in the freetype backend (Bug #105746) + + +Release 1.15.12 (2018-04-04 Bryce Harrington ) +======================================================================== +The main focus for this release is the addition of Variable Font +support. Variable fonts are single font files with various typography +characteristics, such as weight or slant, that users of the font can +adjust between two points. Effectively this enables a single font to +behave as multiple fonts. + +The Skia backend is disabled in this release, due to severe bitrot, and +will be removed in future releases. Contact the cairo team if you have +a need of this backend. + +For a complete log of changes, please see + + https://cairographics.org/releases/ChangeLog.1.15.12 + +Features and Enhancements +------------------------- +* Variable font support +* Skia backend is disabled + +API Changes +----------- +* cairo_font_options_get_variations() and + cairo_font_options_set_variations() are added. + +Dependency Changes +------------------ +None + +Performance Optimizations +------------------------- +None + +Bug Fixes +--------- +* Fix errors in csi-trace --help and --version options +* Fix a 'memory leak' in the image compositor, with + pixman_glyph_cache_t. +* Fix access of uninitialized memory found by valgrind + (Bug #91271) +* Fix improper initialization of memory in + _cairo_ft_font_face_create_for_pattern() + (Bug #105084) +* Fix multi-monitor virtual desktop with negative coords on Win32 + (Bug #100793) +* Fix issues occurring with older FreeType versions. + + +Release 1.15.10 (2017-12-07 Bryce Harrington ) +======================================================================== +This release adds GLESv3 support to the cairo_gl backend, adds +tracking of SVG units in generated svg documents, and cleans up numerous +test failures and related issues in the PDF and Postscript backends. + +For a complete log of changes, please see + + https://cairographics.org/releases/ChangeLog.1.15.10 + +Features and Enhancements +------------------------- +* Add support for OpenGL ES 3.0 to the gl backend. +* Use Reusable streams for forms in Level 3 Postscript. +* Add CAIRO_MIME_TYPE_EPS mime type for embedding EPS files. +* Add CCITT_FAX mime type for PDF and PS surfaces +* svg: add a new function to specify the SVG document unit + (Bug #90166) +* Use UTF-8 filenames on Windows + +API Changes +----------- +* cairo_svg_surface_set_document_unit() and + cairo_svg_surface_get_document_unit() + +Dependency Changes +------------------ +None + +Performance Optimizations +------------------------- +None + +Bug Fixes +--------- +* Fix regression in gles version detection +* Fix undefined-behavior with integer math. +* Handle SOURCE and CLEAR operators when painting color glyphs. + (Bug #102661) +* Convert images to rgba or a8 formats when uploading with GLESv2 +* Use _WIN32 instead of windows.h to check for windows build. +* Fix sigabrt printing documents with fonts lacking the mandatory .nodef + glyph. + (Bug #102922) +* Prevent curved strokes in small ctms from being culled from vector + surfaces + (Bug #103071) +* Fix painting an unbounded recording surface with the SVG backend. +* Fix falling back to system font with PDFs using certain embedded + fonts, due to truncated font names. + (Bug #103249) +* Fix handling of truetype fonts with excessively long font names + (Bug #103249) +* Fix race conditions with cairo_mask_compositor_t + (Bug #103037) +* Fix build error with util/font-view +* Fix assertion hit with PDFs using Type 4 fonts rendered with user + fonts, due to error when destroying glyph page. + (Bug #103335) +* Set default creation date for PDFs +* Prevent invalid ptr access for > 4GB images. + (Bug #98165) +* Prevent self-copy infinite loop in Postscript surface. +* Fix padded image crash in Postscript surface. +* Fix annotation bugs in PDFs and related memory leaks +* Fix test failures and other assorted issues in ps and pdf code. +* Fix code generation when using GCC legacy atomic operations + (Bug #103559) +* Fix various compilation warnings and errors. +* Fix various distcheck errors with private symbols, doxygen formatting, + etc. + +Release 1.15.8 (2017-08-29 Bryce Harrington ) +======================================================================== +This small snapshot provides new colored emoji glyph support, and a +handful of minor fixes. + +For a complete log of changes, please see + + https://cairographics.org/releases/ChangeLog.1.15.8 + +Features and Enhancements +------------------------- +* Support colored emoji glyphs, stored as PNG images in OpenType fonts. + + +API Changes +----------- +None + +Dependency Changes +------------------ +None + +Performance Optimizations +------------------------- +None + +Bug Fixes +--------- + +* pdf: Fix internal links pointing to other pages, by pre-calculating + page heights so that link positions can be calculated more accurately. + +* image: Fix crash on negative lengths + +* win32: Fix initialization of mutexes for static builds + +* pdf: Don't emit /PageLabel dict when no labels defined + +* font: Fix color font loading on big-endian systems + +* font: Fix color font support infinite-loop with empty glyphs + +* Fix off by one check in cairo-image-info.c + + + +Release 1.15.6 (2017-06-13 Bryce Harrington ) +======================================================================== +This new snapshot incorporates changes over the past half-year since the +1.15.4 snapshot, including all the fixes from the 1.14 release series. + +The PDF code continues to be enhanced, and we're restored MacOSX 10.4 +support. Font-related fixes and improved error handling for X round out +the release. + +For a complete log of changes, please see + + https://cairographics.org/releases/ChangeLog.1.15.6 + + +Features and Enhancements +------------------------- +* Detect if variable fonts have synthesized bold/italic or non-default + variants, and use a fallback font where needed. + +* Restore MacOSX 10.4 support. Cairo had dropped 10.4 support when + moving to the CoreText API. Now we automatically detect which API to + use via dynamic linking, so can resume supporting this older version + of MacOSX. + + +API Changes +----------- +None + +Dependency Changes +------------------ +None + +Performance Optimizations +------------------------- +None + +Bug Fixes +--------- +* Fix error reporting in the xcb backend if fallback fails. Instead of + returning NULL when the X11 server can't do some operation, return a + surface in an error state. + +* Call XSync in the xlib backend before setting the error handler to + ignore errors for certain requests, to make sure all pending errors + are handled first. + +* Fix text-glyph-range for quartz-font. Use 0xFFFF instead of 0 for + invalid index tracking. + +* Fix handling of Supplementary Multilingual Plane (SMP) Unicode + characters in quartz-font. + +* Fix various issues in the drm backend including updating API usage and + general code cleanup. + +* Clarify documentation regarding device scale inheritance and the units + used in cairo_surface_create_similar_image. + Bug #99094. + + +Release 1.15.4 (2016-12-9 Bryce Harrington ) +======================================================================= +This new snapshot incorporates changes over the past year since the +1.15.2 snapshot, including all the fixes from the 1.14 release series. + +Of particular note in this snapshot is a wealth of work by Adrian +Johnson to enhance PDF support, as well as numerous bug fixes provided +by him and other contributors. + +For a complete log of changes since the last release, please see: + + https://cairographics.org/releases/ChangeLog.1.15.4 + +Features +-------- +* The PDF backend has gained support for a range of widely used + features, including thumbnails, page labels, metadata, document + outlines, structured text, hyperlinks, and tags. Tags permit adding + logical info such as headings, tables, figures, etc. that facilitates + indexing, accessibility, text reflow, searching, and extraction of the + tagged items to other software. For details on this new PDF + functionality, see: + + https://lists.cairographics.org/archives/cairo/2016-June/027427.html + + +API Changes +----------- + + cairo_win32_surface_create_with_format + + Added a cairo API to set up Win32 surfaces for HDC with alpha channels. + + cairo_pdf_surface_add_outline + cairo_pdf_surface_set_metadata + cairo_pdf_surface_set_page_label + cairo_pdf_surface_set_thumbnail_size + cairo_tag_begin + cairo_tag_end + CAIRO_STATUS_TAG_ERROR + + New API for added PDF functionality (see above), and new error + status item for problems relating to PDF tagging. + + CAIRO_STATUS_WIN32_GDI_ERROR + CAIRO_STATUS_FREETYPE_ERROR + CAIRO_STATUS_PNG_ERROR + + New error status items for handling of GDI, libfreetype, and libpng + errors, respectively. + +Dependency Changes +------------------ +None + +Performance Optimizations +------------------------- +None + +Bug Fixes +--------- +* Bug fixes from 1.15.2 (see the 1.15.2 NEWS for details) + +* Fix playback of recording surfaces into PDF surfaces, where objects + with negative coordinates were not getting drawn. To address this, + the coordinate systems for PDF and PS have been changed to match + cairo's coordinate system. This allows recording surfaces to be + emitted in cairo coordinates, and results in the same origin being + used for all operations when using the recording surface XObject. + Test cases for PDF and PS have also been updated accordingly. + (Bug #89232) + +* Fix "invalidfont" error on some printers when printing PDFs with + embedded fonts that have glyphs (such as spaces) with + num_contours == 0. (Bug #79897) + +* Fix missing glyphs such as thin dashes, which get scaled to 0 in + userspace and thus have their drawing operations culled. (Bug #94615) + +* Fix other oddities caused by variously idiosyncratic fonts. + +* Fix deadlock when destruction of a scaled font indirectly triggers + destruction of a second scaled font, causing the global cache to be + locked twice. (Bug #93891) + +* Fix X errors reported to applications when shmdt() is called before + the Attach request is processed, due to missing xcb and xlib calls. + +* Fix random failure in record-paint-alpha-clip-mast test case, caused + by an incorrect assumption that a deferred clear can be skipped. + (Bug #84330) + +* Fix crash when dealing with an XShmGetImage() failure, caused by a + double free in _get_image_surface(). (Bug #91967) + +* Fix invalid execution of ASCII85 data by the PS interpreter that the + image operator didn't use, by flushing the extraneous data after + drawing the image. (Bug #84811) + +* Fix decoding of Adobe Photoshop's inverted CMYK JPEG files in PDF + export. + +* Fix unbounded surface assertion in win32-print code. + +* Fix a data race in freed_pool discovered by Firefox's cairo usage. + The patch adads atomic int load and store functions, with relaxed + memory ordering. (Bug #90318) + +* Cleanup debugging text sent to stdout instead of log. (Bug #95227) + +* Fix build issue when using non-GNU strings utility. (Bug #88639) + +* Fix build of cairo modules as regular modules, not as versioned shared + libraries. (Bug #29319) + +* Fix build on win32 using gcc 5.4. + +* Fix build of script backend to require zlib. + +* Update test suite reference images using Debian Jessie 64-bit and + poppler current as of June, 2016. + +* Various improvements to documentation and tests, compiler warning + fixes, and an assortment of code refactoring and cleanup. + + +Release 1.15.2 (2015-12-10 Bryce Harrington ) +======================================================================== +This release is largely a rollup to include a variety of fixes that +didn't make the cut for the stable 1.14.2 and 1.14.4 releases, as well +as all the fixes from those releases. Notably this includes a highly +requested new API for Win32 surfaces. + +For a complete log of changes since the last release, please see: + + https://cairographics.org/releases/ChangeLog.1.15.2 + +Features +-------- +None + +API Changes +----------- + + cairo_win32_surface_create_with_format + + Added a cairo API to set up Win32 surfaces for HDC with alpha channels. + +Dependency Changes +------------------ +None + +Performance Optimizations +------------------------- +None + +Bug Fixes +--------- +* All the bug fixes from 1.14.2, 1.14.4, and 1.14.6 + +* Fix xcb/xlib compilation and calls. Make image boxes behave when SHM + is not available. + +* Fix various issues with printing and transparent images on Win32. + +* Fix thin lines that don't show up when printing in Inkscape due to + overly aggressive culling. + (Bug #77298) + +* Fix broken printing via pdf when glyph 0 is used for rendering, + resulting in missing spaces and letters. + (Bug #89082) + +* Fix crash for certain glyphs in opentype fonts. + (Bug #91902) + +* Fix incorrect rendering of SVG paths with more than one subpath. If + more than one trap is passed in then it's guaranteed that the returned + traps will have their left edge to the left of their right edge, but + if only one trap is passed in then the function always returns without + doing anything. + (Bug #90984) + +* Improve rendering with Quartz to better match pixman's blending and + filtering behavior. + + +Release 1.14.6 (2015-12-09 Bryce Harrington ) +======================================================================== +Simple bugfix release to fix one Windows issue. + +For a complete log of changes since 1.14.4, please see: + + https://cairographics.org/releases/ChangeLog.1.14.6 + +Features +-------- +None + +API Changes +----------- +None + +Dependency Changes +------------------ +None + +Performance Optimizations +------------------------- +None + +Bug Fixes +--------- +* Fix failure on Windows due to reference of the function + cairo_win32_surface_create_with_format(), which isn't included in the + 1.14.4 release. (Bug #92771) + + +Release 1.14.4 (2015-10-28 Bryce Harrington ) +======================================================================== +Just in time for Halloween we see another bug-fix release for Cairo. +This brings a few dozen straightforward bug fixes with no API changes. + +In addition, this includes a typical assortment of fixes to tests, +cleanup of warnings and memory leaks, correction of misspellings, +updates to documentation, etc. + +For a complete log of changes since 1.14.2, please see: + + https://cairographics.org/releases/ChangeLog.cairo-1.14.4 + +Features +-------- +None + +API Changes +----------- +None + +Dependency Changes +------------------ +None + +Performance Optimizations +------------------------- +None + +Bug Fixes +--------- +* Avoid appending empty slots to user data arrays. Fixes a memory + consumption regression since commit 9341c254a. + +* Return a better error (file-not-found) when setting up pango on + devices where the font files don't have read permissions. + +* Fix regression in the font size of canvas text in Inkscape when + compiled with the Quartz backend. (Bug #84324) + +* Fix _cairo_gl_shader_bind_matrix() to maintain compatibility with + OpenGL ES 2.0. Manually transpose the matrix. + +* Fix incorrect font descriptor conversion when the font matrix yy is + negative. (Bug #90538) + +* Fix crash when using a complex path for clip and stroke due to + discarding the intersection exactly at the top edge. + (Bug #74779) + +* Fix cairo_get_locale_decimal_point() on Android + +* Fix compilation problem on AIX due to conflicting usage of symbol + 'jmpbuf'. (Bug #89339) + +* Fix broken rendering with XCB due to snapshotting of uploaded part of + surfaces. (Bug #67505) + +* Fix loss of alpha when copying a mask for a cairo recording surface, + resulting in a double copy. (Bugs #73038, #73901) + +* Fix incorrect recording of certain paths with script surfaces. + (Bug #91054) + +* Fix typo in definition of MAYBE_WARN in configure script. + (Bug #89750) + +* Fix use of filename variable after it's been freed. + (Bug #91206) + +* Fix out of bounds access when printing pattern. + (Bug #91266) + +* Fix incorrect size calculation in glyph cache unlocking for Cairo GL + compositor. + (Bug #91321) + +* Fix memory leak in _cairo_gl_pattern_texture_setup() + (Bug #91537) + +* Fix transparent images in win32-print. + (Bug #91835) + +* Fix _put_shm_image_boxes and _put_image_boxes when no SHM available + with XCB. + + +Release 1.14.2 (2015-03-09 Bryce Harrington ) +==================================================================== +This release provides collected bug fixes, along with one feature +enhancement for the xcb backend, and a small performance improvement for +fonts. + +The running theme of the bug fixes is platform-specific issues, both +build and run-time. Platforms with fixes include Sparc, AIX, Windows +(mingw), and Windows (MSVC8). Memory leaks, valgrind issues, and PDF +issues round out our list. + +It's come to light that changes in cairo 1.14 resulted in breakage on +MacOS X 10.4. We've not yet determined whether to fix up the support, +or excise the 10.4-specific code and support only OS X 10.5 or newer. +Meantime, we'll only advertise cairo as working on OS X 10.5. + +Features +-------- + * Improve xcb's handling of per-screen subpixel ordering. If no + Xft.rgba property is specified, default to the screen's subpixel + order. + +API Changes +----------- +None + +Dependency Changes +------------------ +None + +Performance Optimizations +------------------------- + * Improve performance of cpu_to_be32 and be32_to_cpu, making truetype + subsetting of large fonts run about 15% faster. + +Bug Fixes +--------- + * Fix unaligned access on sparc with the compact font format (CFF). + Unlike truetype, all data in CFF is not aligned. + (Debian bug #712836) + * Fix unaligned access on sparc with tor-scan-converter's memory pool. + * Fix crash when loading a PDF with a transformed image. + (fdo bug #85151) + * Fix regression on mingw for bigendian test due to removal of file + extension for executables. + (fdo bug #85120) + * Fix handling of backslash in PDF interpreter + (fdo bug #85662) + * Fix crash in xlib and xcb renderers when swapping a 0-sized glyph + * Fix bug with RTL text in PDF operators + (fdo bug #86461) + * Fix compilation 'cairo-path-stroke-traps.c' with MSVC8 + (fdo bug #84908) + * Fix crash in _fill_xrgb32_lerp_opaque_spans when a span length is + negative. + * Fix valgrind error by releasing pattern created by + cairo_pattern_create_rgb(). + * Fix valgrind errors when running cairo-test-suite. + * Fix memory leak in recording surface replays + (fdo bug #87898) + * Fix destruction of fonts in api-special-cases test. + (fdo bug #87567) + * Fix duplicated surface push on similar-image, preventing trivial GTK3 + program traces from being replayable, with an error message about + invalid values for the size of the input. + (fdo bug #73580) + * Fix crash when win32 surface's image size does not cover the entire + surface. + (fdo bug #53121) + * Fix crash due to obsolete CGFontGetGlyphPath call + (fdo bug #84324) + * Fix several build issues on AIX + (fdo bugs #89338, #89340, #89356, #89354) + * Fix various documentation warnings and errors + + +Release 1.14.0 (2014-10-13 Bryce Harrington ) +==================================================================== +Hard to believe it's been over a year since our last release, but it's +not for lack of activity. This release includes contributions of a wide +assortment of bug fixes, build system improvements, warnings cleanups, +codebase refactoring, test suite repairs, and static analysis work. + +This release is lighter on features (compared with 1.12.10) but includes +a highly demanded rehaul of our image downscaling functionality, which +solves a serious problem experienced by Inkscape users when shrinking +embedded bitmaps in SVG files. The new scaling algorithms are used by +the image backend and by other backends as needed for fallbacks. + + +Features +-------- + + Filtering improvements for the image backend, in particular + down-scaling of images produces filtered images that depend on all the + pixels of the source. When using the image backend you get the + following settings: + + CAIRO_FILTER_GOOD: uses a box filter for scales less than .75 in + either direction. For scales larger than this, the same filter as + CAIRO_FILTER_BILINEAR is used. + + CAIRO_FILTER_BEST: uses a Catmull-Rom filter always. When upscaling + more than 2x this will produce anti-aliased square pixels, similar + to OS/X. + + CAIRO_FILTER_GAUSSIAN: uses PIXMAN_FILTER_BEST, which in current + pixman is the same as BILINEAR. (This is subject to change in the + future). + + xlib and xcb also use the image fallback for GOOD/BEST filters, but + note that other backends do not implement these filtering fixes yet, + however other actions may cause them to use an image fallback which + will cause these filters to be used. + + Improve handling of device transformation and scaling, allowing Cairo + to now support scaling at a device level, permitting easier, more + transparent HiDPI support. + + Support JBIG2 mime data in PDF. This allows embedding of more + compressed JPEG formats within PDF, rather than including the full + uncompressed image. Also, reduce the number of transparency groups + used by PDF to keep the file size small and viewing/printing of the + PDF fast. + + Expand the embedding section to include stencil mask support. + + Reorder font declarations to be in natural order. + + Update the Skia backend to build against current Skia (as of June + 2014). + + Drop Link-Time Optimization (LTO) support from build system. This + seems to have caused much trouble for unclear benefit, and most + distros are reverting or disabling it anyway. + + Optimize VBO size on GL to 1M and to 16k for EGL. This improves + (theoretical) performance for desktop GLX use cases while avoiding + hitting VBO memory size limitations on embedded devices. + +API Changes +----------- + + cairo_surface_set_device_scale, cairo_surface_get_device_scale: + + Sets a scale that is multiplied to the device coordinates + determined by the CTM when drawing to @surface. One common use for + this is to render to very high resolution display devices at a scale + factor, so that code that assumes 1 pixel will be a certain size + will still work. + + cairo_egl_device_get_display, cairo_egl_device_get_context: + + Support get/set of EGLContext and EGLDisplay for egl-based cairo + devices, similar to GLX. + +Dependency Changes +------------------ + + Cairo now requires glib 2.14 for its gobject helper functions, + and pixman 0.30 for downscaling. + + +Bug fixes +--------- + + Don't embed CMYK Jpeg images in svg. + + Fix tests to place output in proper location. + + Fix determination of alpha for all surfaces when recording. + + Extend oversize check to cairo_gl_surface_create_for_texture, so an + error surface is returned if the texture is too large to render to. + + Fix embedding of mime data in PDF and PS files. + + Remove useless error handling in *_reply() functions in XCB. + + Fix a double-free exposed by multithreaded apps creating and + destroying the same font concurrently. + https://bugs.freedesktop.org/show_bug.cgi?id=69470 + + Fix corrupt stacks produced by bugs in operand emission for trace. + + Fix out of bounds array access in format cache for xlib + + Don't rename glyphs used by seac operator. This can cause certain + combined characters to use their decorations (e.g. umlauts on ö) to be + lost during printing of PDFs using evince. + https://bugs.freedesktop.org/show_bug.cgi?id=70364 + + Fix crash on calling cairo_create with a finished surface + + Fix SSIZE_T definition problem when making with MSYS on Windows7 + + Fix one off issue in gl context cleanup + + Fix usage of CAIRO_STACK_ARRAY_LENGTH + + Fix rectangle stroke with non rectilinear pen + + Fix imagemask with pattern source failure on some printers. This bug + could cause files converted using pdftops to fail for example on Ricoh + printers, or opening in Adobe Distiller on Windows. + https://bugs.freedesktop.org/show_bug.cgi?id=69485 + + Fix whitespace in font names + + Fix page size in generated PDFs. When printing using pdftocairo on + larger page sizes, such as 11x17, the image would be cropped to letter + size. + https://bugs.freedesktop.org/show_bug.cgi?id=73452 + + Fix path-currentpoint test by preserving current-point in + copy_path()/append_path() sequence + + Fix generation of HTML in code docs for + cairo-format-stride-for-width. Raw HTML code was being passed + to the browser, instead of displaying normally. + https://bugs.freedesktop.org/show_bug.cgi?id=63257 + + Fix spelling of "tessellator" throughout code. We're using the + American rather than British spelling of this word. + https://bugs.freedesktop.org/show_bug.cgi?id=50411 + + Fix crash in pixman_image_composite32 + + Fix crash when trying to modify a (const) all-clipped cairo_clip_t + https://bugs.freedesktop.org/show_bug.cgi?id=75819 + + Add check_composite method to all compositors, to fix crashes in the + test suite. + + Fix crash in Firefox when scrolling on certain pages. + + Fix memory leaks found by static analysis. + + Fix build of any2ppm if fork is not available. + + Fix broken build for Qt backend, due to missing libstdc++. + + Fix typo in two cairo_uint128 functions. Fixes potential build issues + on systems without a uint128 type. + + Fix build when --enable-pdf=no + + Fix cache_frozen assertions for Win32 print. + + Correctly check for xcb image surface for inplace upload + + Fix webkit-based web browser crashes due to empty boxes by skipping + over them when tesselating. + + Make pixman, libpng, and zlib paths commandline configurable for win32 + builds. + + Fix image scale on Win32 when GDI scale is not identity. + + Fix float endian configure test when using clang -O4 + + Fix compilation with Android bionic libc + + Don't try to build util/sphinx on Windows + + Fix loss of precision when emitting joins. This was caused by + discrepancies in line gradients when passing trapezoids around. + + Fix loss of precision and associated rendering issues in + cairo-tor-scan-converter from projection onto sample grid. + + Fix pixman oversampling of neighbouring edges within a cell by + eliminating self-intersections for the pixman traps compositor. + + Fix multi-line string splitting in PDFs + + Various cleanups and fixes to warnings, documentation, tests, and + build system. Improve error handling and return value checks. + Cleanup XFAIL tests and reference images. Cover recently added + functionality. + + +Release 1.12.16 (2013-08-21 Chris Wilson ) +=================================================================== +Thanks to everybody who reported a bug and helped us develop a fix, +we have amassed quite a few bug fixes. There are still more outstanding +bugs that seek attention and a little bit of TLC, but this release has +been delayed long enough... + +Bug fixes +--------- + + Set the correct orientation for simple boxes with a negative scale + factor. + + Fix the creation of the shading dictionary in PDF. + + Fix a crash in PDF when incorporating an image with CAIRO_EXTEND_PAD. + https://bugs.freedesktop.org/show_bug.cgi?id=61451 + + Avoid upscaling bitmap fonts if possible. + + Fix an assertion failure within the mempool allocator for shared memory. + + Fix allocation size for CFF subsets. + + Export cairo_matrix_t for GObject bindings. + + Fix a double free in the Quartz backend. + https://bugs.freedesktop.org/show_bug.cgi?id=62885 + + Fix origin of GDI StretchBlits for the Windows backend + https://bugs.freedesktop.org/show_bug.cgi?id=61876 + + Fix error propagation for requests to create a similar surface with + negative size. + https://bugs.freedesktop.org/show_bug.cgi?id=63196 + + Fix complex clipping of trapezoids with regions + https://bugzilla.gnome.org/show_bug.cgi?id=697357 + + Stop leaking the image data when loading PNGs + + Fix unbounded operations with a clip mask through the span compositor + https://bugs.freedesktop.org/show_bug.cgi?id=61592 + + Add missing checks before rendering to a finished surface - so we return + an error rather than hit an assert. + https://bugs.freedesktop.org/show_bug.cgi?id=68014 + + Prevent an assertion failure when creating similar GL surfaces larger + than supported by hardware. + + Prevent a double free of a similar image under Windows. + https://bugs.freedesktop.org/show_bug.cgi?id=63787 + + +Release 1.12.14 (2013-02-10 Chris Wilson ) +=================================================================== +In the last week we had a few more bugs reported and promptly resolved. +As these are a combination of regressions and stability issues, it is +time for a prompt update and release. Many thanks to everyone for +testing and reporting issues, and helping to make Cairo better. + +Bug fixes +--------- + + Prevent user callbacks accessing user-data during destroy to prevent + use-after-free bugs. + https://bugzilla.mozilla.org/show_bug.cgi?id=722975 + + Use standard names for glyphs in subset fonts (PDF). + https://bugs.freedesktop.org/show_bug.cgi?id=60248 + + Fix detection of Win98. The logic for detecting Win98 (and its broken + AlphaBlend()) was inverted, disabling AlphaBlend() for everyone. + + Prevent numeric overflow from extrapolating polygon edges to the clip + boundary and causing severe render artifacts. + https://bugs.freedesktop.org/show_bug.cgi?id=60489 + + Fix computation of glyph string coordinates when breaking up runs + for xlib. + + Fix an assertion in the win32 backend for failing to clear its + similar-images. + https://bugs.freedesktop.org/show_bug.cgi?id=60519 + + +Release 1.12.12 (2013-01-31 Chris Wilson ) +=================================================================== +The goal of this release is to fix the synchronisation problems that +were exhibited in the SHM transport for cairo-xlib. This cropped up +any place that tried to rapidly push fresh pixel data to the X server +through an ordinary image surface, such as gimp-2.9 and evince. + +Bug fixes +--------- + + Avoid replacing the entire image when uploading subimages + https://bugs.freedesktop.org/show_bug.cgi?id=59635 + + Force synchronisation for scratch SHM image buffers, so that we do + not overwrite data as it is being read by X. + https://bugs.freedesktop.org/show_bug.cgi?id=59635 (also) + + Fix typos in detecting multisampling for the GL (MSAA) backend. + + Fix a memory leak in the GL (MSAA) backend. + + Fix a reference counting bug when mapping a GL surface to an image. + + +Release 1.12.10 (2013-01-16 Chris Wilson ) +=================================================================== +A heap of bug fixes everywhere, and the gradual completion of the MSAA +backend for cairo-gl. Perhaps the most noteworthy set of the bugfixes +was the crusage lead by Behdad Eshfabod to make font handling by +pango/cairo/fontconfig fully threadsafe. This testing revealed a couple +of races that needed fixing in Cairo's scaled-font and glyph cache. + +Bug fixes +--------- + + Append coincident elements to the recording's surface bbtree so that + the list is not corrupted and the overlapping elements lost. + + Fix cairo-trace to correctly record map-to-image/unmap-image and then + replay them. + + Ignore MappingNotifies when running the XCB testsuite as they are sent + to all clients when the keyboard changes. The testsuite would detect + the unexpected event and complain. + + Handle very large images in the XCB backend. + + Fix a memory leak in the xlib/shm layer, and prevent use of the SHM + surfaces after the display is closed. + https://bugs.freedesktop.org/show_bug.cgi?id=58253 + + Handle resizing of bitmap fonts, in preparation for a fix to + fontconfig to correctly pass on the user request for scaling. + + Always include subroutine 4 (hint replacement idion) when subsetting + type 1 fonts in order to prevent a crash in cgpdftops on Mac OS/X + + Fix a couple of typos in the cairo-gobject.h header files for + introspection. + + Prevent a mutex deadlock when freeing a scaled-glyph containing a + recording-surface that itself references another scaled-glyph. + https://bugs.freedesktop.org/show_bug.cgi?id=54950 + + Make scaled-font cache actually thread-safe and prevent + use-after-frees. + + Restore support for older versions of XRender. A couple of typos and a + few forgotten chunks prevented the xlib compositor from running + correctly with XRender < 0.10. Note that there are still a few + regressions remaining. + + +Release 1.12.8 (2012-11-24 Chris Wilson ) +=================================================================== +Another couple of weeks and a few more bugs have been found and fixed, +it is time to push the next point release. Many thanks to everyone who +reported their issues and helped us track down the bugs and helped +testing the fixes. + +Bug fixes +--------- + + Expand the sanity checking for broken combinations of XSendEvent and + ShmCompletionEvent. + + Notice that "The X.Org Foundation" sometimes also identifies itself + as "The Xorg Foundation". + + Handle various ages of libXext and its Shm headers. + + Fix the invalid clipping of the source drawable when using SHM + transport to upload images. + https://bugs.freedesktop.org/show_bug.cgi?id=56547 + + Handle all Type1 postscript operators for better font compatibility. + https://bugs.freedesktop.org/show_bug.cgi?id=56265 + + Fix a couple of memory leaks in Type1 font subsetting + https://bugs.freedesktop.org/show_bug.cgi?id=56566 + + Tighten the evaluation of the start/stop pen vertices, and catch a few + instances where we would use a fan instead of a bevel. + https://bugs.freedesktop.org/show_bug.cgi?id=56432 + + Fix assumption that geometric clipping always succeeds with the + span-compositor. + https://bugs.freedesktop.org/show_bug.cgi?id=56574 + + Fix call to spline intersection when evaluating whether a stoke is + visible. + + Remember to copy inferior sources when using SHM to readback the + surface for use as a source. + +Release 1.12.6 (2012-10-22 Chris Wilson ) +=================================================================== +Thanks to everyone who download cairo-1.12.4 and gave us their feedback. +It truly was invaluable and has helped us to fix many portability issues +that crept in with some of the new features. This release aims to fix +those stability issues and run on a wider range of systems. + +Bug fixes +--------- + + Fix the recording surface to actually snapshot the source and so fix + PDF drawing. + + Calling XSendEvent with an XShmCompletionEvent is incompatabile with + older Xorg servers. + + Reorder CloseDisplay chain so that XShm is not reinstantiated after + shutdown, causing a potential crash if the Display was immediately + recreated using the same memory address. + + Make sure that the Xserver has attached to the SHM segment before + deleting it from the global namespace on systems that do not support + deferred deletion. + + Type1 subsetting support for PDF (and PS) was once again improved to + work with a larger number of PDF readers. + + GLESv2 build fixes and improved support for embedded GPUs. + + Tweak the invisible pen detection for applications that are currently + using too large values for geometric tolerance. + + A build fix for older freetype libraries. + + +Release 1.12.4 (2012-10-05 Chris Wilson ) +=================================================================== +More bugs, and more importantly, more fixes. On the cairo-gl side, we +have refinements to the MSAA compositor which enables hardware +acceleration of comparatively low-quality antialiasing - which is useful +in animations and on very high density screens. For cairo-xlib, we have +finally enabled SHM transport for image transfers to and from the X +server. A long standing required feature, SHM transport offers a notable +reduction in rendering latency by reducing the number of copies +required to upload image data - given hardware and driver support, +cairo-xlib can now perform zero copy uploads onto the GPU. And as usual +Adrian Johnson has been very busy fixing many different corner cases in +cairo-pdf, improving opacity groups and font subsetting. Last, but not +least, for cairo-image Søren Sandmann Pedersen added support for +rendering glyphs to pixman and using that from within cairo. The new +glyph rendering facility reduces the overhead for setting up the +compositing operation, improving glyph thoughput for the image backend +by a factor of about 4. And before he did so, he also fixed up a few +bugs in the existing glyph rendering code. So many thanks to Andrea +Canciani, Adrian Johnson, Chuanbo Weng, Dongyeon Kim, Henry Song, Martin +Robinson, Søren Sandmann Pedersen and Uli Schlachter for their +contributions, finding and fixing bugs. + +Bug fixes +--------- + + Interior boxes were being dropped when amalgamating regions during + tessellation. + https://bugs.freedesktop.org/show_bug.cgi?id=49446 + + Allow building without gtk-doc installed + + Invalid edge generation whilst reducing complex polygons. + https://bugs.freedesktop.org/show_bug.cgi?id=50852 + + Stroking around tight cusps + + Use locale correct formats for reading font subsetting and valid + buffers. + https://bugs.freedesktop.org/show_bug.cgi?id=51443 + + Ensure that the type1 subset includes all the glyph encodings + https://bugs.freedesktop.org/show_bug.cgi?id=53040 + + Upload the whole source for a repeating pattern. + https://bugs.freedesktop.org/show_bug.cgi?id=51910 + + Fix damage tracking to handle continuation chunks correctly and so + prevent crashes on win32. + https://bugs.freedesktop.org/show_bug.cgi?id=53384 + + Avoid emitting miter joins for degenerate line segments + https://bugzilla.mozilla.org/show_bug.cgi?id=407107 + + Convert the relative path semgents into the backend coordinates + and then back again to user coordinates (cairo_copy_path, + cairo_append_path) + https://bugs.freedesktop.org/show_bug.cgi?id=54732 + + Fix extents computations for a degenerate path consisting only of a + move-to + https://bugs.freedesktop.org/show_bug.cgi?id=54549 + + Prevent crashing on a degenerate project edge after polygon + intersection + https://bugs.freedesktop.org/show_bug.cgi?id=54822 + + + +Release 1.12.2 (2012-04-29 Chris Wilson ) +=================================================================== +After such a long gestation period for the release of Cairo 1.12, we +inevitably accumulated a few bugs that were flushed out by broadening the +test base. Thanks to everybody who tried the release, apologies to any one +unfortunate enough to encounter a bug and many thanks for reporting it. As +a result Adrian Johnson, Alexandros Frantzis, Andrea Canciani, Kalev +Lember, Maarten Bosman, Marcus Meissner, Nis Martensen and Uli Schlachter +have squashed many more bugs and improved the documentation. I would +strongly recommend everyone to upgrade to cairo-1.12.2. +-Chris + +Bug fixes +--------- + + Allow applications to create 0x0 xlib surfaces, such as used by LibreOffice. + https://bugs.freedesktop.org/show_bug.cgi?id=49118 + + Trim composite extents for SOURCE/CLEAR operators to the mask. + + Use fallback fonts in PDF for unhandled computed glyph widths + https://bugs.freedesktop.org/show_bug.cgi?id=48349 + + Handle snapshots of recording surfaces for analysing pattern extents. + Fixes a regression of reporting the PDF bounding box as being the page size. + + Fix allocation size for PDF pattern ids. + Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=49089 + + Fix emission of rectilinear dashed segments, with and without scaling, and + application of degenerate line joins. + + Clamp unbounded fixup polygons to the clip extents. + + Prevent infinite loop due to rounding errors whilst incrementing along dashes. + + Prevent overflow for inline a8 span filling. + + Miscellaneous build fixes for Cygwin on Windows and Solaris. + +Release 1.12.0 (2012-03-23 Chris Wilson ) +=================================================================== +It's taken over 18 months, but the wait is finally over. A new cairo release! +We are pleased to announce a new stable release of Cairo that brings many +new features and performance improvements, all whilst maintaining +compatibility with cairo-1.0 and all releases since. We recommend anyone +using a previous release of Cairo to upgrade to 1.12.0. + +The major feature of this release is the introduction of a new procedural +pattern; the mesh gradient. This, albeit complex, gradient is constructed +from a set of cubic Bezier patches and is a superset of all other gradient +surfaces which allows for the construction of incredibily detailed patterns. +In PDF parlance, the mesh gradient corresponds with type 7 patterns. Many +thanks to Andrea Canciani for bringing this to Cairo, and for his work on +making gradient handling robust. + +Not content with just adding another procedural pattern, Cairo 1.12 also +adds new API to create a callback pattern, +cairo_pattern_create_raster_source, that allows the application to +provide the pixel data for the region of interest at the time of +rendering. This can be used for instance, by an application to decode +compressed images on demand and to keep a cache of those decompressed +images, independently of Cairo. When combined with the recording +surface, it should form a useful basis for a deferred renderer. + +With the release of cairo-1.12, we also introduce a new supported +backend for interoperating with X using XCB. Uli Schlachter, also +maintainer of awesome and contributor to libxcb, has volunteered to +maintain cairo-xcb for us. Thanks Uli! + +For cairo-1.12, we have also added some common API to address any +surface as an image and so allow direct modification of the raster data. +Previously, only the Quartz and Win32 backends supported a very narrow +interface to allow for efficient pixel upload. Now with +cairo_surface_create_similar_image, cairo_surface_map_to_image, and +cairo_surface_unmap_image, Cairo exports a consistent method for +treating those surfaces as an image and so allow modification inplace. +These are the same routines used internally, and should support +efficient transfer or direct mapping of the target surfaces as +applicable. + +Another focus over the past year has been to address many performance +issues, without sacrificing the composition model. To accomplish the +goal, once again the rasterisation pipeline was overhauled and made +explicit, giving the backends the freedom to implement their own +specific pipeline whilst also providing a library of common routines +from which to build the pipeline. For instance, this allows the image +backend and the gl backend to composite scan line primitives inplace, +and to then implement custom fallbacks to catch the corner cases that do +not map onto their fastest paths. Similarly, this allows for the Xlib +backend to implement trapezoidation without compromising the other +backends, yet still allow for the pipeline to be used elsewhere for +testing and fallbacks. Clipping was once again overhauled, so that the +common cases for the raster pipelines could be captured and processed +with fast paths with the emphasis on performing geometric clipping to +reduce the frequency of using multi-pass clipmasks. Stroking was made +faster, both by providing specialised fast-paths for simple, yet frequent, +cases (such as stroking around a rectangle) and by reducing the number +of edges generated by the general stroker. + +As part of the focus on performance, Cairo 1.12 introduces some +antialias hints (NONE, FAST, GOOD, BEST) that are interpolated by the +rasterisers to fine tune their performance versus quality. Cairo 1.12 +also introduces a new observation architecture, +cairo_surface_observer_t, which can be used to analyse the amount of +time consumed by drawing commands and help identify inefficiencies in +both Cairo and the application. + +Last, but by no means least, the OpenGL backend has seen significant +work including the port to GLESv2 and the exploitation of advanced +hardware features. Interesting times. + +As always, I would like to thank everyone who contributed to Cairo, +not only through writing code, but also submitting documentation, bug +reports, suggestions and generally having fun with Cairo! In particular +though this release could not have happened without the efforts of +Adrian Johnson, Alexandros Frantiz, Andrea Canicani, Martin Robinson, +Nis Martensen, and Uli Schlachter. Thanks. +-Chris + +Snapshot 1.11.4 (2012-13-12) +============================ +The cairo community is pleased to finally announce the long aniticpated +release candidate for 1.12, 1.11.4, of the cairo graphics library. This +is the first major update to cairo in over a year and brings a large +number of new features; undoubtably a few bugs as well. + +While many people have contributed and have helped to test the release, +providing feedback on 1.10 and suggesting improvements, this release +is the result of a few persevering souls who deserve recognition for their +outstanding contributions: Andrea Canciani (all round bug fixing, +performance tuning and master of the gradients), Adrian Johnson (PDF +supremo) and Uli Schlachter (who stepped forward as maintainer for the +XCB backend). + +Major additions since 1.11.2: + + * cairo_surface_map_to_image API for pixel level access to any surface + + * New antialias hints to control the trade-off between speed and quality + + * A callback pattern, cairo_pattern_create_raster_source, for lazy + decoding of image data. + + * cairo_surface_observer_t, a new type of surface to gather performance + statistics + + * XCB as a supported backend + + * A rewritten compositor pipeline for performance improvements for, but not + limited to, the xlib and image backends. + From ION and PineView through to SandyBridge, every machine I have shows + across the board performance improvement on the cairo-traces: + + i5-2520m gnome-system-monitor: 5.97x speedup + pnv gnome-system-monitor: 4.86x speedup + i5-2520m firefox-asteroids: 4.66x speedup + pnv firefox-asteroids: 4.43x speedup + image firefox-canvas: 3.82x speedup + i5-2520m firefox-canvas-alpha: 3.49x speedup + image firefox-asteroids: 2.87x speedup + pnv firefox-talos-svg: 2.83x speedup + ion grads-heat-map: 2.75x speedup + pnv firefox-canvas-alpha: 2.66x speedup + image gnome-system-monitor: 2.66x speedup + image swfdec-giant-steps: 2.46x speedup + image firefox-canvas-alpha: 2.14x speedup + i5-2520m firefox-talos-svg: 2.03x speedup + image grads-heat-map: 2.02x speedup + ion gnome-system-monitor: 2.00x speedup + pnv firefox-particles: 1.99x speedup + i5-2520m grads-heat-map: 1.96x speedup + pnv firefox-canvas: 1.92x speedup + ion firefox-particles: 1.80x speedup + image poppler-reseau: 1.77x speedup + pnv xfce4-terminal-a1: 1.72x speedup + image firefox-talos-svg: 1.65x speedup + pnv grads-heat-map: 1.63x speedup + i5-2520m firefox-canvas: 1.63x speedup + pnv swfdec-youtube: 1.62x speedup + image ocitysmap: 1.59x speedup + i5-2520m firefox-fishbowl: 1.56x speedup + i5-2520m poppler-reseau: 1.50x speedup + i5-2520m evolution: 1.50x speedup + i5-2520m midori-zoomed: 1.43x speedup + pnv firefox-planet-gnome: 1.42x speedup + i5-2520m firefox-talos-gfx: 1.41x speedup + i5-2520m gvim: 1.41x speedup + pnv ocitysmap: 1.37x speedup + image poppler: 1.31x speedup + ion firefox-canvas-alpha: 1.35x speedup + ion firefox-talos-svg: 1.34x speedup + i5-2520m ocitysmap: 1.32x speedup + pnv poppler-reseau: 1.31x speedup + i5-2520m firefox-planet-gnome: 1.31x speedup + pnv firefox-fishbowl: 1.30x speedup + pnv evolution: 1.28x speedup + image gvim: 1.27x speedup + i5-2520m swfdec-youtube: 1.25x speedup + pnv gnome-terminal-vim: 1.27x speedup + pnv gvim: 1.25x speedup + image firefox-planet-gnome: 1.25x speedup + image swfdec-youtube: 1.25x speedup + ... + +And a plethora of minor improvements everywhere! +-Chris + +Snapshot 1.11.2 (2011-01-23) +=========================== + +In this first snapshot along the way to cairo-1.12.0, we are very excited +to announce the introduction of Bezier surface gradients, known as type +6/7 gradients in PS/PDF parlance. This is the culmination of much work by +the dynamic duo: Adrian Johnson and Andrea Canciani. Thanks guys! + +Also, I want to warmly welcome Uli Schlachter who recently joined the +Cairo community on a mission. That mission is to make cairo-xcb a +supported backend for 1.12. And for this snapshot he has made great +strides in fixing all the bugs I had left behind. Thanks Uli! + +And we have also seen a new contributor, Alexandros Frantzis, who has +begun bringing up cairo-gl for GLESv2 devices. Thanks Alex! + +And lastly, I must also thank Adrian and Andrea for the vast numbers of +bugs that they have tackled between them, fixing all those little corner +cases that lie hidden until too late. + +API additions: + +The ability to construct piece-wise Bezier surface gradients: + + cairo_pattern_create_mesh + + constructs a pattern of type CAIRO_PATTERN_TYPE_MESH using + + cairo_pattern_mesh_begin_patch + cairo_pattern_mesh_end_patch + cairo_pattern_mesh_curve_to + cairo_pattern_mesh_line_to + cairo_pattern_mesh_move_to + cairo_pattern_mesh_set_control_point + cairo_pattern_mesh_set_corner_color_rgb + cairo_pattern_mesh_set_corner_color_rgba + cairo_pattern_mesh_get_patch_count + cairo_pattern_mesh_get_path + cairo_pattern_mesh_get_corner_color_rgba + cairo_pattern_mesh_get_control_point + +The introduction of a unique ID accessible via the mime data type: + CAIRO_MIME_TYPE_UNIQUE_ID + + + + + +Release 1.10.2 (2010-12-25 Chris Wilson ) +=================================================================== +The cairo community is pleased to announce the 1.10.2 release of the +cairo graphics library. This is the first update to cairo's stable 1.10 +series and contains a large number of bug fixes. + +While many people have contributed and have help to test the release, +2 people deserve special recognition for their efforts in tracking down +and fixing bugs, Andrea Canciani and Adrian Johnson. Thanks to their +tremendous efforts, and of all cairo contributors, it is much +appreciated. + +We recommend everyone upgrade to cairo 1.10.2 and hope that everyone +will continue to have lots of fun with cairo! + +-Chris + +Bug fixes +--------- + + Fix embedding of grayscale jpegs in PS. + https://bugs.freedesktop.org/show_bug.cgi?id=31632 + + Fix the reported path of extents containing a curve. + + Fix the compositing of unaligned boxes. + + Reset the clipper in PDF upon finish. + + Fix degenerates arcs to become a degenerate line. + + Build support for autoconf 2.67 + + Fix painting of transformed patterns in PS + + Fix the EPS bounding box for PS + https://bugs.freedesktop.org/show_bug.cgi?id=24688 + + Fix the missing content for EPS + https://bugs.freedesktop.org/show_bug.cgi?id=24688 + + Fix regression upon changing page size in PS/PDF + https://bugs.freedesktop.org/show_bug.cgi?id=24691 + + Only use ActualText with PDF-1.5 documents + + Fix the bbox for type1 fallbacks. + + Reset the color after ending the context in PDF + https://bugs.freedesktop.org/show_bug.cgi?id=31140 + + Fix the advance of subsetted type1 fonts + https://bugs.freedesktop.org/show_bug.cgi?id=31062 + + Fix handling of EXTEND_NONE gradients for PDF + + Restrict in-place optimisation for a8 image masks with SOURCE + + +Release 1.10.0 (2010-09-06 Chris Wilson ) +=================================================================== +The cairo community is astounded (and flabbergast) to finally announce +the 1.10.0 release of the cairo graphics library. This is a major update +to cairo, with new features and enhanced functionality which maintains +compatibility for applications written using any previous major cairo +release, (1.8, 1.6, 1.4, 1.2, or 1.0). We recommend that anybody using +a previous version of cairo upgrade to cairo 1.10.0. + +One of the more interesting departures for cairo for this release is the +inclusion of a tracing utility, cairo-trace. cairo-trace generates a +human-readable, replayable, compact representation of the sequences of +drawing commands made by an application. This can be used to inspecting +applications to understand issues and as a means for profiling +real-world usage of cairo. + +The traces generated by cairo-trace have been collected in + + git://git.cairographics.org/git/cairo-traces + +and have driven the performance tuning of cairo over the last couple of +years. In particular, the image backend is much faster with a new +polygon rasterisation and a complete overhaul of the tessellator. Not +only is this faster, but also eliminates visual artifacts from +self-intersecting strokes. Not only has cairo-trace been driving +performance improvements within cairo, but as a repeatable means of +driving complex graphics it has been used to tune OpenGL, DDX, and +pixman. + +Cairo's API has been extended to better support printing, notably +through the ability to include a single compressed representation of an +image for patterns used throughout a document, leading to dramatic file +size reductions. Also the meta-surface used to record the vector +commands compromising a drawing sequence is now exposed as a +CAIRO_SURFACE_TYPE_RECORDING, along with a new surface that is a child of a +larger surface, CAIRO_SURFACE_TYPE_SUBSURFACE. One typical usage of a +subsurface would be as a source glyph in a texture atlas, or as a +restricted subwindow within a canvas. + +Cairo's API has also resurrected the RGB16 format from the past as +the prevalence of 16-bit framebuffers has not diminished and is a +fore-taste of the extended format support we anticipate in the future. +Increasing cairo's utility, we introduce the cairo_region_t for handling +sets of pixel aligned rectangles commonly used in graphics applications. +This is a merger of the GdkRegion and the pixman_region_t, hopefully +providing the utility of the former with the speed of the latter. + +Furthermore cairo has been reworked to interoperate more closely with +various acceleration architectures, gaining the ability to share +those hardware resources through the new cairo_device_t. For instance, +with the new OpenGL backend that supersedes the Glitz backend, hardware +and rendering operations can be shared between a classic OpenGL +application mixing libVA for the hardware assisted video decode with +cairo for high quality overlays all within the same OpenGL canvas. + +Many thanks for the hard work of Adrian Johnson, Andrea Canciani, Behdad +Esfahbod, Benjamin Otte, Carl Worth, Carlos Garcia Campos, Chris Wilson, +Eric Anholt, Jeff Muizelaar, Karl Tomlinson, M Joonas Pihlaja, Søren +Sandmann Pedersen and many others that have contributed over the last +couple of years to cairo. Thank you all! + +Snapshot 1.9.14 (2010-07-26) +============================ + + A quiet couple of weeks, hopefully Cairo is seeing widescale deployment and + we are being to see the results of the stabilisation effort. Clipping bugs + seems to have been the order of the last couple of weeks, with a couple + reported and duly fixed. Thank you Igor Nikitin and Karl Tomlinsion for + finding those regressions. At this point all that seems to remain to do is + to fix the outstanding regressions in the PDF backend... + +Bugs fixes +---------- + + Clip doesn't work for text on the image backend + https://bugs.freedesktop.org/show_bug.cgi?id=29008 + + Add explicit dependency for cxx + https://bugs.freedesktop.org/show_bug.cgi?id=29114 + + Fix regressions in reporting clip extents + https://bugs.freedesktop.org/show_bug.cgi?id=29120 + https://bugs.freedesktop.org/show_bug.cgi?id=29121 + https://bugs.freedesktop.org/show_bug.cgi?id=29122 + https://bugs.freedesktop.org/show_bug.cgi?id=29124 + https://bugs.freedesktop.org/show_bug.cgi?id=29125 + + +Snapshot 1.9.12 (2010-07-12) +============================ + + A couple of weeks spent fixing those annoying bugs and cleaning up the build + system; the list of outstanding tasks to complete for the stable release is + finally shrinking. The chief bug fixer has been Benjamin Otte who not only + made sure that the public API is consistent and being tested for its + consistency, but also ensured that the documentation was up-to-date and + spent time clarifying cases where even the Cairo developers have come + unstuck in the past. Many thanks, Benjamin. However, he was not alone, + as Andrea Canciani continued his fine work in isolating broken corner cases + and proceeding to fix them, and tidying up the quartz backend. And last, but + definitely not least, M Joonas Pihlaja tried building Cairo across a + perverse range of systems and fixed up all the loose bits of code that came + unravelled. Thanks everybody! + +API Changes +----------- + + cairo_surface_set_mime_data, cairo_surface_get_mime_data: + + The length parameter is now an unsigned long (as opposed to an unsigned + int). The parameter is intended to be an equivalent to a size_t without + requiring POSIX types and be large enough to store the size of the + largest possible allocation. + + cairo_gl_surface_create_for_texture: + + This a new surface constructor for cairo-gl that explicitly enables + render-to-texture for foreign, i.e. application, textures. + + cairo_region_xor, cairo_region_xor_rectangle + + A couple of utility routines add to the region handling interface for + the purpose of replacing existing GdkRegion functionality. + +Bugs fixes +---------- + + https://bugs.launchpad.net/ubuntu/+source/cairo/+bug/600622 + + Inkscape was caught in the act of attempting to modify a finished surface. + Unfortunately, we had the ordering of our guards and assertions wrong and + so an ordinary application error was triggering an assert in Cairo. This + lead Benjamin to add a test case to ensure that the entire public API + could handle erroneous input and then proceeded to fix a whole slew of + uncovered bugs. + + + https://bugs.freedesktop.org/show_bug.cgi?id=28888 + + A regression introduced by the special casing of uploading images to an + xlib surface in-place which was ignoring the translation applied to the + image. + + +Snapshot 1.9.10 (2010-06-26) +============================ + + The first "quick" snapshot in the run up to the stable release. The + last snapshot was picked up by the bleeding edge distributions and so the + bug reports have to started to roll in. The most frequent of these are the + introduction of rendering errors by applications that modify a surface + without subsequently calling cairo_surface_mark_dirty(). Make sure the + application developers are aware of increased reliance on strict use of the + Cairo API before 1.10 is released! + + The usual slew of bugs reported and we would like to thank Zoxc for + contributing the WGL interface for cairo-gl, and finding more build + failures on win32. And it just wouldn't be a 1.9 snapshot unless + Benjamin Otte improved the error handling within cairo-gl, as well as + isolating and fixing some more errors in the test suite. The biggest bug of + the snapshot turned out to be a major sign extension issue that had lain + hidden for many years and was suddenly exposed by incorrectly rounding + rectangles when performing non-antialiased rendering. Also to the relief + of many we have included the downstream patch to honour the user's LCD + filtering preferences for subpixel rendering of fonts. The interface + remains private for the time being, whilst the proposed public API is + finalized. + +API changes +----------- + None. + +Snapshot 1.9.8 (2010-06-12) +=========================== + + One major API changes since the last snapshot, and a whole slew of bugs + fixed and inconsistencies eliminated. Far too many bugs fixed to + individually identify. We need to thank Benjamin Otte for his fantastic + work on the cairo-gl backend making it faster and more robust, Andrea + Canciani for finding so many bugs and developing test cases for them, as + well fixing them. And last but not least we must all thank Adrian Johnson for + continuing to eliminate bugs and improving the PostScript and PDF backends. + + This snapshot represents almost 4 months of bug fixing, bringing Cairo to + a point where we consider it almost ready to be a candidate for release. + There are a few known bugs left to be fixed, being tracked in + https://bugs.freedesktop.org/show_bug.cgi?id=24384, so please give Cairo a + whirl and report any regressions. The plan is to release a new snapshot + every other week leading to a 1.10 release with a target date of + 2010-08-16. + +API additions +------------- + CAIRO_FORMAT_RGB16_565 + + 16 bit devices still remain popular, and so with great demand, + CAIRO_FORMAT_RGB16_565 has been restored enabling applications to create + and use 16 bit images as sources and render targets. + + cairo_surface_create_for_rectangle() + + It is common practice to cut an image up into many smaller pieces and use + each of those as a source - a technique called texture atlasing. + cairo_surface_create_for_rectangle() extends Cairo to directly support use + of these subregions of another cairo_surface_t both as a source and as a + render target. + + cairo_region_create() + cairo_region_create_rectangle() + cairo_region_create_rectangles() + cairo_region_copy() + cairo_region_reference() + cairo_region_destroy() + cairo_region_equal() + cairo_region_status() + cairo_region_get_extents() + cairo_region_num_rectangles() + cairo_region_get_rectangle() + cairo_region_is_empty() + cairo_region_contains_rectangle() + cairo_region_contains_point() + cairo_region_translate() + cairo_region_subtract() + cairo_region_subtract_rectangle() + cairo_region_intersect() + cairo_region_intersect_rectangle() + cairo_region_union() + cairo_region_union_rectangle() + + The Cairo region API was actually added a couple of snapshots ago, but we + forgot to mention it at the time. A simple API for the handling of + rectangular pixel-aligned regions by Soeren Sandmann. + + +Backend-specific improvements +----------------------------- +cairo-gl + + Benjamin Otte made more than 200 commits in which he refactored the cairo-gl + backend, reducing a lot of code duplication and enabled him to begin working + on improving performance by reducing state changes and associated overhead. + +cairo-xlib + + Access to the underlying connection to the Display is now thread-safe + enabling cairo-xlib to be used in a multi-threaded application without fear + of random corruption. Thanks Benjamin Otte! + + cairo-xlib will now attempt to use PolyModeImprecise when compositing + trapezoids (i.e. a fill or a stroke operation with a non-trivial path) which + should allow hardware drivers more scope for accelerating the operation at + the cost of potentially incurring minute rendering errors. The mode can be + forced back to PolyModePrecise by setting the antialias parameter to + CAIRO_ANTIALIAS_SUBPIXEL. + +cairo-svg + + A notable improvement was contributed by Alexander Shulgin to enable SVG to + reference external image through the use an extended MIME data type. + +Snapshot 1.9.6 (2010-02-19) +=========================== +API additions +------------- + Add cairo_device_t + + The device is a generic method for accessing the underlying interface + with the native graphics subsystem, typically the X connection or + perhaps the GL context. By exposing a cairo_device_t on a surface and + its various methods we enable finer control over interoperability with + external interactions of the device by applications. The use case in + mind is, for example, a multi-threaded gstreamer which needs to serialise + its own direct access to the device along with Cairo's across many + threads. + + Secondly, the cairo_device_t is a unifying API for the mismash of + backend specific methods for controlling creation of surfaces with + explicit devices and a convenient hook for debugging and introspection. + + The principal components of the API are the memory management of: + + cairo_device_reference(), + cairo_device_finish() and + cairo_device_destroy(); + + along with a pair of routines for serialising interaction: + + cairo_device_acquire() and + cairo_device_release() + + and a method to flush any outstanding accesses: + + cairo_device_flush(). + + The device for a particular surface may be retrieved using: + + cairo_surface_get_device(). + + The device returned is owned by the surface. + +API changes (to API new in the cairo 1.9.x series) +-------------------------------------------------- + cairo_recording_surface_create() + cairo_recording_surface_ink_extents() + + These are the replacement names for the functions previously named + cairo_meta_surface_create and cairo_meta_surface_ink_extents. + + cairo_surface_set_mime_data + + This interface is now changed such that the MIME data will be + detached if the surface is modified at all. This guarantees that + the MIME data will not become out of synch due to surface + modifications, and also means that for the MIME data to be useful, + it must be set after all modifications to the surface are + complete. + +API removal (of experiment API) +------------------------------- + The cairo-glitz backend is removed entirely, (in favor of the new + cairo-gl backend). See below for more on cairo-gl. + +Generic fixes +------------- + + Many improvements for drawing of dashed strokes + + Fix incorrect handling of negative offset + Faster computation of first dash (avoids near-infinite looping) + Approximate extremely fine dash patterns with appropriate alpha value + + Optimize spans-based renderers for repeated rows, (such as in a rounded rectangle) + +Backend-specific improvements +----------------------------- +cairo-drm + + This is a new, direct-rendering backend that supports Intel graphics + chipsets in the i915 and i965 families. It's still experimental and + will likely remain that way for a while. It's already got extremely + good performance on the hardware it supports, so if nothing else + provides a working proof and performance target for the cairo-gl + work for Intel graphics. + +cairo-gl + + Start using GLSL to accelerate many operations. Many thanks to Eric + Anholt and T. Zachary Laine for this work. For the first time, we + have what looks like what will be a very compelling OpenGL-based + backend for cairo (in terms of both quality and performance). + + See this writeup from Eric for more details on recent progress of + cairo-gl (which he presented at FOSDEM 2010): + + http://anholt.livejournal.com/42146.html + +cairo-image + + The image backend is made dramatically faster (3-5 times faster for + benchmarks consisting primarily of glyph rendering). + +cairo-quartz fixes: + + Many fixes from Robert O'Callahan and Andrea Canciani including: + + Fixed gradient pattern painting + Improved A8 image handling + Fixes for "unbounded" and other compositing operators + +cairo-pdf fixes: + + Improvements to embedding of JPEG and JPEG2000 data. + +cairo-ps fixes: + + Fix printing of rotated user fonts. + +Snapshot 1.9.4 (2009-10-15) +=========================== +API additions: + + cairo_meta_surface_create() + cairo_meta_surface_ink_extents() + + Finally exporting the internal meta-surface so that applications + have a method to record and replay a sequence of drawing commands. + + cairo_in_clip() + + Determines whether a given point is inside the current clip. + ??? Should this be called cairo_in_paint() instead? in-clip is the test + that is performed, but in-paint would be similar to in-fill and in-stroke. + +New utilities: + + cairo-test-trace + + A companion to cairo-perf-trace, this utility replays a trace against + multiple targets in parallel and looks for differences in the output, + and then records any drawing commands that cause a failure. + Future plans: + Further minimisation of the fail trace using "delta debugging". + More control over test/reference targets. + +Backend improvements: + + xlib + + Server-side gradients. The theory is that we can offload computation + of gradients to the GPU and avoid pushing large images over the + connection. Even if the driver has to fallback and use pixman to render + a temporary source, it should be able to do so in a more efficient manner + than Cairo itself. However, cairo-perf suggests otherwise: + + On tiny, Celeron/i915: + + before: firefox-20090601 211.585 + after: firefox-20090601 270.939 + + and on tiger, CoreDuo/nvidia: + + before: firefox-20090601 70.143 + after: firefox-20090601 87.326 + + In particular, looking at tiny: + + xlib-rgba paint-with-alpha_linear-rgba_over-512 47.11 (47.16 0.05%) -> 123.42 (123.72 0.13%): 2.62x slowdown + █▋ + xlib-rgba paint-with-alpha_linear3-rgba_over-512 47.27 (47.32 0.04%) -> 123.78 (124.04 0.13%): 2.62x slowdown + █▋ + + +New experimental backends: + + QT + + OpenVG - The initial work was done by Øyvind Kolås, and made ready for + inclusion by Pierre Tardy. + + OpenGL - An advanced OpenGL compositor. The aim is to write a integrate + directed rendering using OpenGL at a high-level into Cairo. In + contrast to the previous attempt using Glitz which tried to + implement the RENDER protocol on top of OpenGL, using the + high-level interface should permit greater flexibility and + more offloading onto the GPU. + The initial work on the backend was performed by Eric Anholt. + +Long standing bugs fixed: + + Self-intersecting strokes. + + A long standing bug where the coverage from overlapping semi-opaque + strokes (including neighbouring edges) was simply summed in lieu of + a costly global calculation has been fixed (by performing the costly + global calculation!) In order to mitigate the extra cost, the + tessellator has been overhauled and tune, which handles the fallback + for when we are unable to use the new span rasteriser on the stroke + (e.g. when using the current RENDER protocol). The large number of + pixel artifacts that implementing self-intersection elimination + removes is ample justification for the potential performance + regression. If you unfortunately do suffer a substantial performance + regression in your application, please consider obtaining a + cairo-trace and submitting it to us for analysis and inclusion into + our performance suite. + +Special thanks: + + To the AuroraUX team for providing access to one of their OpenSolaris + machines for cairo and pixman development. http://www.auroraux.org/ + +Snapshot 1.9.2 (2009-06-12) +=========================== +API additions: + + cairo_surface_set_mime_data() + cairo_surface_get_mime_data() + + Should this take unsigned int, unsigned long or size_t for the length + parameter? (Some datasets may be >4GiB in size.) + + Associate an alternate, compressed, representation for a surface. + Currently: + "image/jp2" (JPEG2000) is understood by PDF >= 1.5 + "image/jpeg" is understood by PDF,PS,SVG,win32-printing. + "image/png" is understood by SVG. + + cairo_pdf_version_t + cairo_pdf_surface_restrict_to_version() + cairo_pdf_get_versions() + cairo_pdf_version_to_string() + + Similar to restrict to version and level found in SVG and PS, + these limit the features used in the output to comply with the PDF + specification for that version. + + CAIRO_STATUS_INVALID_SIZE + Indicates that the request surface size is not supported by the + backend. This generally indicates that the request is too large. + + CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED + Indicates that a required callback for a user-font was not implemented. + + CAIRO_STATUS_LAST_STATUS + This is a special value to indicate the number of status values enumerated + at compile time. (This may differ to the number known at run-time.) + + The built-in twin font is now called "@cairo:" and supports a limited set + of options like "@cairo:mono". Where are these specified? + + cairo_in_fill() now uses HTML Canvas semantics, all edges are inside. + +New experimental backends: + + CairoScript + +New utility: + + cairo-trace and cairo-perf-trace + + cairo-trace generates a human-readable, replayable, compact(-ish!) + representation of the sequences of drawing commands made by an + application. + + Under the util/cairo-script directory is a library to replay traces. + + perf/cairo-perf-trace replays traces against multiple backends + and makes useful benchmark reports. This is integrated with + 'make perf'. You may collect your own traces or take advantage + of traces collected by the community: + + git://git.cairographics.org/git/cairo-traces + + (Put this into perf/cairo-traces to run these as part of "make perf".) + + There is additional WIP in building a debugging tool for cairo applications + based on CairoScript (currently very preliminary, mostly serves to show + that GtkSourceView is too slow) : + + people.freedesktop.org:~ickle/sphinx + +Test suite overhaul: + + The test suite is undergoing an overhaul, primarily to improve its speed + and utility. (Expect more changes in the near future to improve XFAIL + handling.) + +Optimisations: + polygon rasterisation! Joonas implemented the Tor polygon scan converter, + on typical geometry is about 30% faster for the image backend. + + Bovine Polaroids! For those not in on the joke, this is the long + awaited "copy-on-write snapshot" or "COW snapshot" support. The + user-visible feature is that including the same image multiple times + into a PDF file should result in only a single instance of that + image in the final output. This is unlike previous versions of cairo + which would generate very large PDF files with multiple copies of + the same image. Adrian says that the PDF is not quite working as + well as it should yet, so we hope for further improvements before + cairo 1.10. + +Bug fixes: + + EXTEND_PAD. + + Better handling of large scale-factors on image patterns. + + Emit /Interpolate for PS,PDF images. + + Global glyph cache - cap on the total number of inactive glyphs, + should prove fairer for fonts with larger glyph sets. + + Compilation without fontconfig + + Improved handling of low-bitdepth sources (e.g. copying the contents + of 16-bit xserver windows) + +Regressions: + + cairo_traps_extract_region >10x slower. Fix pending. + +Still to come: + + Region tracking API (ssp) for damage tracking, hit testing etc + mime-surface + + An expiremental OpenGL backend? + + Tweaks to tessellator, allocations of patterns, delayed + initialisation of the xlib backend (reduce the cairo overhead of + render_bench by ~80%). + + +Release 1.8.8 (2009-06-16 Chris Wilson ) +================================================================== +The cairo community is pleased to announce the 1.8.8 release of the +cairo graphics library. This is the fourth update to cairo's stable +1.8 series and contains a small number of bug fixes (in particular a +few corrections to the documentation and a few fixes in the FreeType font +backend). This is being released just over six months after cairo 1.8.6. + +We recommend that everyone using cairo upgrade to 1.8.8. + +-Chris + +Build fixes +----------- +There were reports of incompatibilities with the autotools bundled in with +the 1.8.6 tarball. This release has been built with automake-1.10.2 and +autoconf-2.63. + +The configure check for FreeType has been improved: + + typo in check for version of freetype in configure script + https://bugs.freedesktop.org/show_bug.cgi?id=19283 + +Compilation on 64-bit MacOS/X fixes: + + Cannot build cairo_quartz_font_face_create_for_atsu_font_id on 64-bit Mac OS X + https://bugs.freedesktop.org/show_bug.cgi?id=15702 + +Bug fixes +--------- +Uninitialised status return within _cairo_clip_intersect_mask(). This caused +random crashes and general mayhem as an error could be generated causing all +rendering to the context to stop. + +Avoid transforming nearly-degenerate matrices into degenerate matrices: + + Painting stops in this case, using -moz-transform: scale, rotate and video + https://bugzilla.mozilla.org/show_bug.cgi?id=467423 + +A few FreeType font handling bugs were fixed: + + Rendering with PANGO_GRAVITY_EAST leads to different results with image and pdf + https://bugs.freedesktop.org/show_bug.cgi?id=21985 + + Don't call FT_Done_Face() on faces we did not create + + zombie ft_font_face / ft_unscaled_font mutual referencing problems + https://bugs.freedesktop.org/show_bug.cgi?id=21706 + +Ensure win32 font backend sets the return value to -1 (indicating the absent +glyph) if the font index lookup for the unicode character fails. And +similarly fix a bug where a fatal error was raised for an invalid glyph. + + cairo_scaled_font_glyph_extents breaks with invalid glyph id + https://bugs.freedesktop.org/show_bug.cgi?id=20255 + +Various improvements to the documentation, reported by Truc Troung: + + https://bugs.freedesktop.org/show_bug.cgi?id=20095 + https://bugs.freedesktop.org/show_bug.cgi?id=20154 + https://bugs.freedesktop.org/show_bug.cgi?id=20180 + https://bugs.freedesktop.org/show_bug.cgi?id=20183 + https://bugs.freedesktop.org/show_bug.cgi?id=20182 + https://bugs.freedesktop.org/show_bug.cgi?id=20441 + + +Release 1.8.6 (2008-12-13 Chris Wilson ) +================================================================== +The cairo community is pleased to announce the 1.8.6 release of the +cairo graphics library. This is the third update to cairo's stable +1.8 series and contains a small number of bug fixes (in particular a +few fixes for failures of cairo 1.8.4 on Quartz and PDF, and build fixes for +a couple of backends). This is being released just under a month after +cairo 1.8.4. + +We recommend that everyone using cairo upgrade to 1.8.6. + +-Chris + +Build fixes +----------- +Fix build of DirectFB backend with debugging enabled: + + Bug in _cairo_directfb_surface_release_source_image function + https://bugs.freedesktop.org/show_bug.cgi?id=18322 + +Fix build on OS/2. + +Bug fixes +--------- +Workaround a mis-compilation of cairo_matrix_invert() that generated invalid +matrices and triggered assertion failures later. The issue was reported by +Peter Hercek. + +Invalid computation of the modulus: + + https://bugzilla.mozilla.org/show_bug.cgi?id=466258 + +Invalid referencing of patterns in the Quartz backend: + + Failed assertion `CAIRO_REFERENCE_COUNT_HAS_REFERENCE + (&pattern->ref_count)' when using cairo quartz backend + https://bugs.freedesktop.org/show_bug.cgi?id=18632 + +Invalid references to glyphs after early culling, causing segmentation faults +in the PDF backend: + + https://lists.cairographics.org/archives/cairo/2008-December/015976.html + +Check for XRender in the XCB backend, or else we may attempt an invalid memory +access: + + XCB backend fails with missing render. + https://bugs.freedesktop.org/show_bug.cgi?id=18588 + +Release 1.8.4 (2008-11-14 Carl Worth ) +========================================================= +The cairo community is pleased to announce the 1.8.4 release of the +cairo graphics library. This is the second update to cairo's stable +1.8 series and contains a small number of bug fixes, (in particular a +few fixes for build failures of cairo 1.8.2 on various systems). This +is being released just over two weeks after cairo 1.8.2. + +We recommend that everyone using cairo upgrade to 1.8.4. + +-Carl + +Build fixes +----------- +Fix build with older XRender that doesn't define RepeatNone: + + Build of xlib backend fails against old XRender (RepeatNone undeclared) + https://bugs.freedesktop.org/show_bug.cgi?id=18385 + +Fix build with bash version <= 3.0: + + doltlibtool broken on linux with bash 3.00.0 + https://bugs.freedesktop.org/show_bug.cgi?id=18363 + +Bug fixes +--------- +Avoid triggering a bug in X.org server 6.9 resulting in a hung machine +requiring a reboot: + + https://bugs.freedesktop.org/show_bug.cgi?id=15628#c2 + +Fix display of user fonts as exercised by proposed support for type3 +fonts in poppler (unsigned promotion fixes): + + Use cairo user-font for Type 3 fonts + https://lists.freedesktop.org/archives/poppler/2008-October/004181.html + +Avoid miscomputing size of fallback images required when rendering +with CLEAR, IN, or SOURCE operator to vector surfaces, (PS, PDF, SVG, +etc.). + +Be more tolerant of broken fonts when subsetting type1 fonts: + + Error handling in cairo_type1_font_subset_get_glyph_names_and_widths + https://lists.cairographics.org/archives/cairo/2008-October/015569.html + +Fix cairo_fill_extents, cairo_stroke_extents, cairo_path_extents, to +correctly allow NULL parameters as documented. + +Fix potential crash on emitting a type3 glyph after having drawn text +paths from the same font, (for example with cairo_text_path). + +Release 1.8.2 (2008-10-29 Carl Worth ) +========================================================= +The cairo community is pleased to announce the 1.8.2 release of the +cairo graphics library. This is the first update to cairo's stable 1.8 +series and contains a large number of bug fixes. It is being released +just over one month since cairo 1.8.0. + +This release consists primarily of bug fixes, but there is one notable +new feature, (the ability to build cairo without an external font +backend), and there are a few optimizations as well. See below for +details on these changes and the most important bug fixes. + +While many people have contributed to this release, Chris Wilson +deserves particular mention. He has contributed well over twice as +many changes to cairo since 1.8.0 than everyone else combined. We +greatly appreciate the tremendous efforts of Chris and all cairo +contributors. + +We recommend everyone upgrade to cairo 1.8.2 and hope that everyone +will have lots of fun with cairo! + +-Carl + +New feature +----------- +It is now possible to build cairo without any font backend, (such as +freetype, win32 or quartz). This is most useful when the application +provides custom font rendering through the user-font API. But in the +case where no external font backend is available, and no user-font is +provided, cairo will render with a failsafe font, (a stroked font +covering visible ASCII character). (Behdad Esfahbod) + +Optimizations +------------- +Dramatically speed up compilation with dolt (removes much of the +libtool overhead) (Behdad Esfahbod with thanks to Josh Triplett). + +Several minor optimizations to tessellator (special-cased comparisons, +faster insert for skiplist, etc.) (Chris Wilson). + +Optimize away fractional translation component when doing +EXTEND_NEAREST filtering, (for better performance). + +General bug fixes +----------------- +Allow cloning sub-regions of similar surfaces to fix this bug +(Chris Wilson): + + Crafted gif file will crash firefox + [XError: 'BadAlloc (insufficient resources for operation)'] + https://bugzilla.mozilla.org/show_bug.cgi?id=424333 + +Fix some matrix confusion to fix this regression (Chris Wilson): + + Translucent star exports in a wrong way to PDF + https://bugs.launchpad.net/inkscape/+bug/234546 + +Fix some long-standing bugs with respect to properly computing the +extents of transformed, filtered surfaces (Owen Taylor, Carl Worth, +and Chris Wilson): + + Bad clipping with EXTEND_NONE + https://bugs.freedesktop.org/show_bug.cgi?id=15349 + + Improve filtering handling in cairo-pattern.c + https://bugs.freedesktop.org/show_bug.cgi?id=15367 + + Many thanks to Chris Wilson for digging out and cleaning up + these fixes. + +Fix compilation on Solaris 10 (Chris Wilson): + + Cairo requires -DREENTRANT (along with -D_POSIX_THREAD_SEMANTICS) + to compile on Solaris 10 with pthreads + https://bugs.freedesktop.org/show_bug.cgi?id=18010 + +Fix very old bug causing dashes to be rendered at the wrong length in +fallback images (Adrian Johnson) + + Dashed strokes too long in fallback images + https://bugs.freedesktop.org/show_bug.cgi?id=9189 + +Fix broken dashing when a dashed path starts outside the clip region +(Chris Wilson). + +Avoid range overflow when computing large patterns (Benjamin Otte and +Chris Wilson). + +Avoid crashing due to an invalid font with an incorrect entry in its +CMAP table (Adrian Johnson). + +Fix bugs in computing maximum size of text requests that can be sent +with the Render extension, (avoiding potential crashes when rendering +large amounts of text) (Behdad Esfahbod and Chris Wilson). + +Fix rendering of operators unbounded by the mask (Chris Wilson). + +Fix compilation on systems without compiler support for a native +64-bit type (Chris Wilson). + +Fix several cases of missing error-status propagation. (Chris Wilson, +doing the work he seems to never tire of). + +Fix several locking issues found with the lockdep valgrind skin (Chris +Wilson). + +Backend-specific bug fixes +-------------------------- +xlib: Avoid crash due to attempting XRender calls on pixmaps with +formats not supported by the Render extension (Chris Wilson): + + XRender crashes due to NULL pointer from Cairo on SGI O2 + https://bugs.freedesktop.org/show_bug.cgi?id=11734 + +xlib: Add support for XImages with depth of 4, 20, 24, or 28 bits +(Chris Wilson): + + cairo doesn't support 24 bits per pixel mode on X11 + https://bugs.freedesktop.org/show_bug.cgi?id=9102 + +xlib: Avoid mistakenly considering two surfaces as similar just +because their depths match (while their Render formats do not) (Karl +Tomlinson). + +ps: Fix slight mis-scaling of bitmapped fonts (Adrian Johnson) + +svg: Correctly emit comp-op for paint, mask, and show_glyphs +operations (Emmanuel Pacaud). + +svg: Use finer-grained fallbacks for SVG 1.2 (as PS and PDF backends +have been doing since 1.6.0) (Chris Wilson). + +win32: Fallback to DIB if DDB create fails for +cairo_surface_create_similar (Vladimir Vukicevic). + +win32: Fix compatibility with Windows Mobile (Vladimir Vukicevic). + +win32: Fix static builds to not do __declspec(dllimport) on public +functions. This requires the user to set a CAIRO_WIN32_STATIC_BUILD +environment variable when compiling (Behdad Esfahbod). + +Release 1.8.0 (2008-09-25 Carl Worth ) +========================================================= +The cairo community is happy (and relieved) to announce the 1.8.0 +release of the cairo graphics library. This is a major update to +cairo, with new features and enhanced functionality which maintains +compatibility for applications written using any previous major cairo +release, (1.6, 1.4, 1.2, or 1.0). We recommend that anybody using a +previous version of cairo upgrade to cairo 1.8.0. + +The dominant theme of this release is improvements to cairo's ability +to handle text. The highlights include a new "user fonts" feature as +well as a new cairo_show_text_glyphs API which allows glyphs to be +embedded in PDF output along with their original text, (for searching, +selection, and copy-and-paste). Another major feature is a revamp of +cairo's build system making it much easier to build cairo on various +platforms. + +See below for more details. + +User fonts +---------- +This new API allows the user of cairo API to provide drawings for +glyphs in a font. A common use for this is implementing fonts in +non-standard formats, like SVG fonts and Flash fonts. This API can +also be used by applications to provide custom glyph shapes for fonts +while still getting access to cairo's glyph caches. See +test/user-font.c and test/user-font-proxy.c for usage examples. This +is based on early work by Kristian Høgsberg. Thanks Kristian! + +This new API consists of the following functions (and corresponding +_get functions): + + cairo_user_font_face_create + + cairo_user_font_face_set_init_func + cairo_user_font_face_set_render_glyph_func + cairo_user_font_face_set_text_to_glyphs_func + cairo_user_font_face_set_unicode_to_glyph_func + +An additional, new API is + + cairo_scaled_font_text_to_glyphs + +We were previously reluctant to provide this function as +text-to-glyphs support in cairo was limited to "toy" font +functionality, not really interesting for real-world text +processing. However, with user fonts landing, this API is needed to +expose full access to how user fonts convert text to glyphs. This is +expected to be used by text toolkits like Pango, as well as "proxy" +user-font implementations. + +cairo_show_text_glyphs +---------------------- +This new API allows the caller of cairo to provide text data +corresponding to glyphs being drawn. The PDF backend implements this +new API so that complex text can be copied out of cairo's PDF output +correctly and reliably, (assuming the user of cairo calls +cairo_show_text_glyphs). The cairo_show_text_glyphs API is definitely +the most daunting API to debut in cairo. It is anticipated that pango +(and similar high-level text libraries) will be the primary users of +this API. In fact, pango 1.22 already uses cairo_show_text_glyphs. +Behdad was the architect and implementor of this effort. Thanks, +Behdad! + +The cairo_show_text_glyphs API includes the following new functions: + + cairo_show_text_glyphs + + cairo_glyph_allocate + cairo_glyph_free + + cairo_text_cluster_allocate + cairo_text_cluster_free + + cairo_surface_has_show_text_glyphs + +Build system revamp +------------------- +The primary goal of the revamp is to make the build system less +fragile, (particularly for non-Linux platforms). For example, now +people building on win32 will no longer need to maintain a +platform-specific list of files to be built. See the new README.win32 +for details. Also, the .so file will now be installed with a different +naming scheme, (for example, 1.7.6 will install with a .10800 +suffix). Many thanks to Behdad and his small army of helpers! + +Assorted API additions +---------------------- +For API completeness, several missing "getter" functions were added: + + cairo_scaled_font_get_scale_matrix + + cairo_surface_get_fallback_resolution + + cairo_toy_font_face_create + cairo_toy_font_face_get_family + cairo_toy_font_face_get_slant + cairo_toy_font_face_get_weight + +The new cairo_toy_font_face functions provide access to functionality +and settings provided by cairo_select_font_face(). Thanks Behdad! + +cairo-ps/cairo-pdf: More efficient output +----------------------------------------- +Adrian Johnson has been busy fixing all kinds of bugs in PS and PDF +backends, as well making them generate much more compact output by +avoiding things like re-emitting the color or linestyle on every +drawing operation. Thanks Adrian! + +cairo-xlib: dithering +--------------------- +Dithering: Cairo now does simple dithering when rendering to legacy X +servers. This is most visible with 8-bit visuals. Thanks Behdad! + +cairo-xlib: Avoid rendering glyphs out of surface bounds +-------------------------------------------------------- +This seemingly harmless optimization exposed a bug in OpenOffice.org 3 +versions where OO.o was passing bogus surface extents to cairo, +resulting in no text rendered in OO.o. Please contact your +distribution's OO.o maintainers if you see this bug and point them to +the following URL: + + https://bugs.freedesktop.org/show_bug.cgi?id=16209 + +cairo-xlib: Improved performance with X server without Render +------------------------------------------------------------- +Cairo now performs better on remote X servers that lack the Render +extension by being smarter about using X core protocol facilities +instead of falling back to doing all rendering on the client side. + +cairo-ft: respecting FC_FT_FACE +------------------------------- +Previously it was impossible to instruct cairo to do emboldening on a +font face object created from an FT_Face. Cairo now respects and uses +the FC_FT_FACE fontconfig pattern element, so emboldening can be +achieved by using cairo_ft_font_face_create_for_pattern() and a +carefully crafted pattern using FC_FT_FACE and FC_EMBOLDEN. Thanks +Behdad! + +cairo-directfb: backend improvements +------------------------------------ +The directfb backend, though still unsupported, has seen a good deal +of improvements. Thanks Vlad! + +Bug fixing and optimizations +---------------------------- +xlib: Faster bookkeeping (Karl Tomlinson) + https://bugzilla.mozilla.org/show_bug.cgi?id=453199#c5 + +PS: Fix gradients with non-constant alpha (Chris Wilson) + +Fix deadlock in user-font code (Richard Hughes and Behdad Esfahbod) + https://bugs.freedesktop.org/show_bug.cgi?id=16819 + +Countless other bugs have been fixed and optimizations made, many of +them thanks to Chris Wilson. Thanks Chris and others! + +Note also that the code that had been in cairo 1.7.x calling into +freetype's optional lcd_filter function was removed from cairo before +the 1.8.0 release. We do expect this code to come back in some form in +the future. + +Snapshot 1.7.6 (2008-09-17 Carl Worth ) +========================================================== +The cairo community is happy to announce the 1.7.6 snapshot of the +cairo graphics library. This is a "release candidate" for the upcoming +1.8.0 release, so we will greatly appreciate any reports of problems +in this release, and no major changes are currently planned before +1.8. + +Notable changes in 1.7.6 +------------------------ +The largest number of changes since 1.7.4 did not change the +implementation of cairo itself, but instead revamped cairo's build +system. The primary goal of the revamp is to make the build system +less fragile, (particularly for non-Linux platforms). For example, now +people building on win32 will no longer need to maintain a +platform-specific list of files to be built. Also, the .so file will +now be installed with a different naming scheme, (for example, 1.7.6 +will install with a .10706 suffix). Much thanks, Behdad! + +And, as usual, Chris Wilson has made another large round of robustness +improvements, (eliminating dead code, fixing propagation of error +status values, test suite improvements, etc. etc.). Thanks as always, +Chris! + +API changes since 1.7.4 +----------------------- +There have been a few changes of API that was new during the 1.7 +series: + +* Remove cairo_font_options_set_lcd_filter + and cairo_font_options_get_lcd_filter + + Motivation: At the Cairo Summit, this API was determined to be too + specific to the freetype font backend to be in the general + API. A similar API with a cairo_ft prefix might be introduced + in the future. Note that cairo will still respect the + corresponding fontconfig settings for these options. + +* Replace cairo_has_show_glyphs + with cairo_surface_has_show_glyphs + + Motivation: This really is a surface-specific interface, and the + convenience function on the cairo_t is not obviously + necessary. An application can easily call: + + cairo_surface_has_show_glyphs (cairo_get_target (cr)); + + as needed. + +* Add cairo_text_cluster_flags_t + to cairo_show_text_glyphs + cairo_scaled_font_text_to_glyphs + cairo_user_scaled_font_text_to_glyphs_func_t + + Motivation: This flag, (and specifically the + CAIRO_TEXT_CLUSTER_FLAG_BACKWARD value), replaces the + cairo_bool_t backward argument in each of the above + interfaces. This leads to more readable user code, and also + allows future extensibility. + +As always, there are no changes to any API from any major cairo +release, (1.0.x, 1.2.x, 1.4.x, 1.6.x). Cairo maintains the same +compatibility promise it always has. + +Bug fixes since 1.7.4 +--------------------- +xlib: Faster bookkeeping (Karl Tomlinson) + https://bugzilla.mozilla.org/show_bug.cgi?id=453199#c5 + +PS: Fix gradients with non-constant alpha (Chris Wilson) + +Fix deadlock in user-font code (Richard Hughes and Behdad Esfahbod) + https://bugs.freedesktop.org/show_bug.cgi?id=16819 + +Several other minor fixes. + +Snapshot 1.7.4 (2008-08-11 Behdad Esfahbod ) +=============================================================== +The cairo community is embarrassed to announce availability of the 1.7.4 +snapshot of the cairo graphics library. This is a followup release to the +1.7.2 snapshot to ship a tarball that can actually be built. The only +change since 1.7.4 is including the missing header file +cairo-user-font-private.h in the distribution. + +Snapshot 1.7.2 (2008-08-11 Behdad Esfahbod ) +=============================================================== +The cairo community is finally ready to announce availability of the 1.7.2 +snapshot of the cairo graphics library. This is embarrassingly the first +snapshot in the 1.7 unstable series of cairo, leading to the eventual release +of cairo 1.8, currently planned for late September. + +This snapshot comes four months after the 1.6.4 release. We have done a +really bad job on getting development snapshots out this cycle, but +hopefully all the API changes for 1.8 are now finished and the remaining +weeks will be spent on bug-fixing. There is more than 400 commits worth +of changes in this snapshot, and those can use some testing. Read on! + +Text, text, and more text! +-------------------------- +The dominant theme of this release, and 1.8 in general, is improvements +around cairo text API. Here is a high-level list of changes with text +handling: + +User fonts +---------- +This is new API allowing the user of cairo API to provide drawings for glyphs +in a font. This is most useful in implementing fonts in non-standard formats, +like SVG fonts and Flash fonts, but can also be used by games and other +applications to draw "funky" fonts. See test/user-font.c and +test/user-font-proxy.c for usage examples. This is based on early work by +Kristian Høgsberg. Thanks Kristian! + +show_text_glyphs +---------------- +This new API allows the caller of cairo to mark text glyphs with their +original text. The PDF backend implements this new API and latest Pango +master uses it. The result is (when bugs are fixed) that complex text can be +copied out of pangocairo's PDF output correctly and reliably. There are bugs +to fix though. A few poppler bugs, and some more in cairo and pango. + +To test show_text_glyph, just grab pango master and this cairo snapshot and +print text in gedit. Open in acroread or evince, select all, copy, paste +in gedit and compare. The Arabic text with diacritic marks is particularly +showing bad. Try with pango/pango-view/HELLO.txt if you are brave +enough. The Indic text is showing improvements, but is still coming out +buggy. + +LCD subpixel filtering using FreeType +------------------------------------- +FreeType 2.3.5 added support for various LCD subpixel filtering, and +fontconfig 2.6.0 added support for configuring LCD filter on a font by font +basis. Cairo now relies on FreeType and fontconfig for subpixel filtering. +This work is based on David Turner's original patch to cairo, maintained +and tested by Sylvain Pasche and others. Thanks all! + +Toy font face constructor and getter +------------------------------------ +Mostly for API completion, but also useful for higher level (like Pango) to +hook into what the user has set using cairo_select_font_face(), making that +toy API a bit more useful. + +FreeType: respecting FC_FT_FACE +------------------------------- +Previously it was impossible to instruct cairo to do emboldening on a font +face object created from an FT_Face. Cairo now respects and uses the +FC_FT_FACE fontconfig pattern element, so emboldening can be achieved by +using cairo_ft_font_face_create_for_pattern() and a carefully crafted pattern +using FC_FT_FACE and FC_EMBOLDEN. + + +PS/PDF: More efficient output +----------------------------- +Adrian Johnson has been busy fixing all kinds of bugs in PS and PDF +backends, as well making them generate much more compact output by avoiding +things like re-emitting the color or linestyle on every drawing operation. +Thanks Adrian! + + +Xlib: Dithering +--------------- +Cairo now does simple dithering when rendering to legacy X servers. This is +mostly visible with 8-bit visuals. + +Xlib: Avoid rendering glyphs out of surface bounds +-------------------------------------------------- +This seemingly harmless change manifested a bug with OpenOffice.org 3 versions +where OO.o was passing bogus surface extents to cairo, resulting in no text +rendered in OO.o. Please contact your distro's OO.o maintainers if you see +this bug and point them to the following URL: + + https://bugs.freedesktop.org/show_bug.cgi?id=16209 + +Xlib: Improved performance with Xrender-less X servers +------------------------------------------------------ +Cairo now performs better on remote, Xrender-less X servers by being smarter +about using X core protocol facilities instead of falling back to doing all +rendering on the client side. + + +Directfb: backend improvements +------------------------------ +The directfb backend, though still unsupported, has seen a good deal of +improvements. Thanks Vlad! + + +Bug fixing and optimizations +---------------------------- +Countless bugs have been fixed and optimizations made, many of them thanks to +Chris Wilson. Thanks Chris! + + +API additions +------------- + +cairo_show_text_glyphs + + This is a new text rendering API. Being a more advanced version of + cairo_show_glyphs(), it is aimed for use by higher-level text toolkits like + Pango, and enables better text extraction from output generated by backends + like PDF and SVG. The PDF backend already implements it, and the upcoming + Pango release will use it. + + To make that API work, a bunch of other additions were made: + +cairo_glyph_allocate +cairo_glyph_free +cairo_text_cluster_t +cairo_text_cluster_allocate +cairo_text_cluster_free +cairo_surface_has_show_text_glyphs + + +cairo_user_font_face_create + + This is the "user" font face constructor, accompanied by a variety of method + signatures, getters, and setters for a callback-based font backend: + +CAIRO_FONT_TYPE_USER +cairo_user_scaled_font_init_func_t +cairo_user_scaled_font_render_glyph_func_t +cairo_user_scaled_font_text_to_glyphs_func_t +cairo_user_scaled_font_unicode_to_glyph_func_t +cairo_user_font_face_set_init_func +cairo_user_font_face_set_render_glyph_func +cairo_user_font_face_set_text_to_glyphs_func +cairo_user_font_face_set_unicode_to_glyph_func +cairo_user_font_face_get_init_func +cairo_user_font_face_get_render_glyph_func +cairo_user_font_face_get_text_to_glyphs_func +cairo_user_font_face_get_unicode_to_glyph_func + + +cairo_scaled_font_text_to_glyphs + + We were previously reluctant to provide this function as text-to-glyphs + support in cairo was limited to "toy" font functionality, not really + interesting for real-world text processing. However, with user-fonts + landing, this API is needed to expose full access to how user-fonts + convert text to glyphs. This is expected to be used by text toolkits like + Pango, as well as "proxy" user-font implementations. + + +cairo_lcd_filter_t +cairo_font_options_set_lcd_filter +cairo_font_options_get_lcd_filter + + These add the possibility to choose between various available LCD subpixel + filters. The available filter values are modelled after what FreeType + provides. + + +cairo_toy_font_face_create +cairo_toy_font_face_get_family +cairo_toy_font_face_get_slant +cairo_toy_font_face_get_weight + + These provide access to functionality and settings provided by + cairo_select_font_face(). + + +cairo_scaled_font_get_scale_matrix +cairo_surface_get_fallback_resolution + + For API completeness. + + +Various new values for cairo_status_t enum + + +Known issues: + +- Type3 fonts generated by cairo's PDF backend may show up in poppler/Evince + in a different color than expected. This is fixed in poppler master branch. + This mostly affects cairo user fonts. The test case test/user-font.c + demonstrates this. + +- User fonts using other fonts in their rendering are currently embedded in + PDF as fallback bitmap glyphs. This will be (hopefully) fixed before 1.8. + The test case test/user-font-proxy.c demonstrates this. + + +Release 1.6.4 (2008-04-11 Carl Worth ) +========================================================= +The cairo community is wildly embarrassed to announce the 1.6.4 +release of the cairo graphics library. This release reverts the xlib +locking change introduced in 1.6.4, (and the application crashes that +it caused). The community would be glad to sack its current release +manager and is accepting applications for someone who could do the job +with more discipline. + +Revert 'add missing locking in cairo-xlib' +------------------------------------------ +This change was introduced in cairo 1.6.2, but also introduced a bug +which causes many cairo-xlib applications to crash, (with a +segmentation fault inside of XSetClipMask). Instead of attempting +another fix for the broken fix, the change in 1.6.2 has been +reverted. The original bug which the change was addressing has been +present since at least cairo 1.4, so it is not expected that leaving +this bug unfixed will cause any new problems for applications moving +from cairo 1.4 to cairo 1.6. + +At this point, the code of cairo 1.6.4 differs from cairo 1.6.0 only +in the fix for the PostScript-printer crashes. + +Tweak build to avoid linking with g++ +------------------------------------- +Cairo 1.6.4 avoids a quirk in automake that was causing the cairo +library to be linked with g++ and linked against libstdc++ even when +only C source files were compiled for the library. + +Release 1.6.2 (2008-04-11 Carl Worth ) +========================================================= +The cairo community is pleased (but somewhat sheepish) to announce the +1.6.2 release of the cairo graphics library. This is an update to +yesterday's 1.6.0 release with an important fix to prevent cairo's +PostScript output from crashing some printers. This release also +includes a locking fix for cairo's xlib backend to improve thread +safety. There are no changes beyond these two fixes. + +Fix for PostScript printer crash +-------------------------------- +Adrian Johnson discovered that cairo 1.6.0 was being a bit hard on +PostScript printers, by changing the font matrix very frequently. This +causes some PostScript interpreters to allocate new font objects every +few glyphs, eventually exhausting available resources. The fix +involves leaving translational components of the font matrix as zero, +so that the PostScript interpreter sees an identical font matrix +repeatedly, and can more easily share internal font object resources. + +This fix has been tested to resolve the bugs posted here, (for both +Xerox and Dell printers): + + Printing some PDFs from evince is crashing our Xerox printer + https://bugs.freedesktop.org/show_bug.cgi?id=15348 + + Cairo-generated postscript blocks Dell 5100cn + https://bugs.freedesktop.org/show_bug.cgi?id=15445 + +Add missing locking in cairo-xlib +--------------------------------- +Chris Wilson noticed that cairo 1.6.0 was manipulating an internal +cache of GC object within cairo's Xlib backend without proper +locking. The missing locking could cause failures for multi-threaded +applications. He fixed this in 1.6.2 by adding the missing locks. + +Release 1.6.0 (2008-04-10 Carl Worth ) +========================================================= +The cairo community is quite pleased to announce the 1.6.0 release of +the cairo graphics library. This is a major update to cairo, with new +features and enhanced functionality which maintains compatibility for +applications written using cairo 1.4, 1.2, or 1.0. We recommend that +anybody using a previous version of cairo upgrade to cairo 1.6.0. + +The most significant new features in this release are dramatically +improved PDF and PostScript[*] output, support for arbitrary X server +visuals (including PseudoColor), a new Quartz backend, and and a new +"win32 printing" backend. See below for more details on these and +other new features. + +New dependency on external pixman library (Thanks, Søren!) +---------------------------------------------------------- +As of cairo 1.6, cairo now depends on the pixman library, for which +the latest release can be obtained alongside cairo: + + https://cairographics.org/releases/pixman-0.10.0.tar.gz + +This library provides all software rendering for cairo, (the +implementation of the image backend as well as any image fallbacks +required for other backends). This is the same code that was +previously included as part of cairo itself, but is now an external +library so that it can be shared by both cairo and by the X server, +(which is where the code originated). + +Improved PDF, PostScript, and SVG output (Thanks, Adrian!) +---------------------------------------------------------- +Users of the cairo-pdf, cairo-ps, and cairo-svg should see a dramatic +improvement from cairo 1.2/1.4 to 1.6. With this release there are now +almost no operations that will result in unnecessary rasterization in +the PDF and PostScript. Rasterized "image fallbacks" are restricted +only to minimal portions of the document where something is being +drawn with cairo that is beyond the native capabilities of the +document, (this is rare for PDF or SVG, but occurs when blending +translucent objects for PostScript). + +This means that the final output will be of higher quality, and will +also be much smaller, and therefore will print more quickly. The +machinery for doing analysis and minimal fallbacks also benefits the +win32-printing surface described below. + +In addition to doing less rasterization, the PostScript and PDF output +also has several other improvements to make the output more efficient +and more compatible with specifications. + +[*] Note: Just before this release, a bug has been reported that the +PostScript output from cairo can crash some printers, (so far the +following models have been reported as problematic Xerox Workcentre +7228 or 7328 and Dell 5100cn). We will implement a workaround as soon +as we can learn exactly what in cairo's output these printers object +to, (and we could use help from users that have access to misbehaving +printers). This bug is being tracked here: + + Printing some PDFs from evince is crashing our Xerox printer + https://bugs.freedesktop.org/show_bug.cgi?id=15348 + +New support for arbitrary X server visuals (Thanks, Keith and Behdad!) +---------------------------------------------------------------------- +As of cairo 1.6, cairo should now work with an arbitrary TrueColor or +8-bit PseudoColor X server visual. Previous versions of cairo did not +support these X servers and refused to draw anything. We're pleased to +announce that this limitation has been lifted and people stuck with +ancient display systems need no longer be stuck with ancient software +just because of cairo. + +New, supported Quartz backend for Mac OS X (Thanks, Brian and Vladimir!) +------------------------------------------------------------------------ +As of cairo 1.6, the cairo-quartz backend is now marked as "supported" +rather than "experimental" as in previous cairo releases. Its API now +has guarantees of API stability into future cairo releases, and its +output quality is comparable to other backends. There have been +significant improvements to cairo-quartz since 1.4. It now uses many +fewer image fallbacks, (meaning better performance), and has greatly +improved text rendering. + +New, "win32 printing" backend (Thanks, Adrian and Vladimir!) +------------------------------------------------------------ +A new win32-printing surface has been added with an interface very +similar to the original win32 surface, (both accept an HDC +parameter). But this new surface should only be called with a printing +DC, and will result in all drawing commands being stored into a +meta-surface and emitted after each page is complete. This allows +cairo to analyze the contents, (as it does with PDF, PostScript, and +SVG backends), and to do minimal image-based fallbacks as +necessary. The analysis keeps things as efficient as possible, while +the presence of fallbacks, (when necessary), ensure the consistent, +high-quality output expected from cairo. + +Robustness fixes (Thanks, Chris!) +--------------------------------- +There has been a tremendous number of improvements to cairo's +robustness. Areas that have been improved include: + + * Proper reporting of errors + + * Responding correctly to invalid input + + * Avoiding integer overflows + + * Avoiding memory leaks on error-recovery paths + + * Making reference counting thread safe + + * Exhaustive testing of memory allocation points + +Other fixes (Thanks, everybody!) +-------------------------------- +Cairo's internal fixed-point representation has been changed from +16.16 to 24.8. This has a direct impact on applications as it allows +much larger objects to be drawn before internal limits in cairo make +the drawing not work. + +The CAIRO_EXTEND_PAD mode is now fully supported by surface +patterns. This mode allows applications to use cairo_rectangle and +cairo_fill to draw scaled images with high-quality bilinear filtering +for the internal of the image, but without any objectionably blurry +edges, (as would happen with the default EXTEND_NONE and cairo_paint). + +Rendering with CAIRO_ANTIALIAS_NONE has been fixed to be more +predictable, (previously image rendering and geometry rendering would +be slightly misaligned with respect to each other). + +The reference manual at https://cairographics.org/manual now documents +100% of the functions and types in cairo's public API. + +API additions +------------- +Several small features have been added to cairo with new API functions: + +cairo_format_stride_for_width + + Must be called to compute a properly aligned stride value before + calling cairo_image_surface_create_for_data. + +cairo_has_current_point + + Allows querying if there is a current point defined for the + current path. + +cairo_path_extents + + Allows querying for path extents, (independent of any fill or + stroke parameters). + +cairo_surface_copy_page +cairo_surface_show_page + + Allow beginning a new document page without requiring a cairo_t + object. + +cairo_ps_surface_restrict_to_level +cairo_ps_get_levels +cairo_ps_level_to_string +cairo_ps_surface_set_eps + + Allow controlling the Post PostScript level, (2 or 3), to + target, as well as to generate Encapsulated PostScript (EPS). + +cairo_quartz_font_face_create_for_cgfont + + Create a quartz-specific cairo_font_face_t from a CGFontRef. + +cairo_win32_font_face_create_for_logfontw_hfont + + Create a win32-specific cairo_font_face from a LOGFONTW and an + HFONT together. + +Thanks, Everyone! +----------------- +I've accounted for 32 distinct people with attributed code added to +cairo between 1.4.14 and 1.6.0, (their names are below). That's an +impressive number, but there are certainly dozens more that +contributed with testing, suggestions, clarifying questions, and +encouragement. I'm grateful for the friendships that have developed as +we have worked on cairo together. Thanks to everyone for making this +all so much fun! + +Adrian Johnson, Alp Toker, Antoine Azar, Behdad Esfahbod, +Benjamin Otte, Bernardo Innocenti, Bertram Felgenhauer, +Boying Lu, Brian Ewins, Carl Worth, Chris Heath, Chris Wilson, +Claudio Ciccani, Emmanuel Pacaud, Jeff Muizelaar, Jeremy Huddleston, +Jim Meyering, Jinghua Luo, Jody Goldberg, Jonathan Gramain, +Keith Packard, Ken Herron, Kouhei Sutou, Kristian Høgsberg, +Larry Ewing, Martin Ejdestig, Nis Martensen, Peter Weilbacher, +Richard Hult, Shailendra Jain, Søren Sandmann Pedersen, +Vladimir Vukicevic + +Snapshot 1.5.20 (2008-04-04 Carl Worth ) +=========================================================== +This is the tenth snapshot in cairo's unstable 1.5 series. It comes +just two days (and only one working day) after the 1.5.18 +snapshot. The quick snapshot is due to two embarrassing bugs (both +affecting cairo-xlib) that had been introduced in the 1.5.18 +snapshot. The fixes for these are described below along with a few +other fixes, (which hopefully aren't introducing new bugs this time). + +cairo-xlib +---------- +Revert fix from 1.5.18 to allow pattern expansion based on the filter +mode. This fix seemed so boring, (the use case it addresses is almost +never used in practice), that it didn't even get mentioned in the +1.5.18 release notes. However, the "fix" happened to break rendering +that is always used resulting in corrupt image rendering in mozilla, +evolution, and probably everything else that uses cairo. + +Fix to avoid BadMatch errors in cairo_surface_create_similar. These +were introduced, (inadvertently, of course), as part of the fix in +1.5.18 for creating similar surfaces without the Render +extension. Again, thanks to mozilla, (and Vladimir Vukicevic in +particular), for noticing our mistake. + +general +------- +Correctly handle an in-error surface in +cairo_surface_write_to_png. Previously this function would cause an +assertion failure if you gave it a finished surface. Now it cleanly +returns a CAIRO_STATUS_SURFACE_FINISHED result instead. + +Avoid potentially infinite wandering through memory inside +_cairo_hull_prev_valid. Thanks to Jonathan Watt for noticing this +problem: + + https://bugzilla.mozilla.org/show_bug.cgi?id=306649#c21 + +cairo-pdf +--------- +Fix generation of "soft" masks made by drawing to a similar surface +and then calling cairo_mask_surface() with it. + +cairo-svg +--------- +Fix for code that uses cairo_mask() on an intermediate surface which +is later passed to cairo_mask_surface(). + +Snapshot 1.5.18 (2008-04-05 Carl Worth ) +=========================================================== +This is the ninth snapshot in cairo's unstable 1.5 series. It comes +just 4 days after the 1.5.16 snapshot. We had hoped to not need +another snapshot before the final 1.6.0 release, but several critical +bugs were found and fixed in the last few days, so we thought it +important to let people test the fixes with this snapshot. See below +for details. + +documentation +------------- +The README now lists necessary dependencies. + +Various graphics state defaults are now documented, (source pattern is +opaque black, line width is 2.0, line join is miter, line cap is butt, +miter limit is 10.0, etc.). + +general +------- +Several cleanups have been made along many error-path returns, +(carefully propagating up the original error status values, cleaning +up memory leaks during error recovery, etc.). This is yet another in +Chris "ickle" Wilson's long series of error-handling cleanups during +the 1.5 series. + +Avoid undesired clipping when drawing scaled surface patterns with +bilinear filtering. + +cairo-pdf +--------- +Fix emission of 1-bit alpha masks in PDF output. + +Fix a bug that would cause glyphs to be misplaced along the Y axis: + + http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=%23474136 + + Originally, an issue about a crash, but later leading to the + misplaced glyphs issue being discovered. + +cairo-ps +-------- +Fix misplaced glyphs in cairo's PostScript output. + + This issue occurs when consecutive glyphs are placed far + apart. This case is exercised by the new ft-show-glyphs-table test + case, which was originally inspired by the Debian bug #23474136 + mentioned above. + +Fix more misplaced glyphs in cairo's PostScript output: + + The issue here showed up under very particular circumstance, (when + converting a PDF file with a CFF font with CID Identity-H encoding + and using glyph 0, (defined by the CFF specification as .notdef) + as a space instead). More concretely, this problem appeared when + converting the UbuntuDesktop.pdf file mentioned in this bug + report: + + https://bugs.freedesktop.org/show_bug.cgi?id=15348#c3 + + As usual with arcane font-encoding-specific bugs like this, many + thanks to Adrian Johnson for his magical ability to dive into + specifications and emerge almost instantaneously with fixes. And + thanks to Sebastien Bacher for bringing the bug to our attention. + +cairo-xlib +---------- +Fix serious failure on X servers without the Render extension. + + Since the 1.5.14 snapshot (with support for PseudoColor visuals), + any application attempting to create a "similar" xlib surface would + fail on an X server without the Render extension. Thanks to + Frederic Crozat for pointing out that cairo's test suite was + entirely failing when run against Xvfb. + +Avoid crashing cairo-xlib applications for too-large glyphs + + Naively sending glyphs of any size to the X server will eventually + violate the X limit on maximum request sizes. We now properly + detect when a glyph would be too large and use existing fallbacks + to render the glyph rather than trying to send it to the X server. + +Enable the buggy_repeat workaround for Xorg servers < 1.4 + + We have determined that Xorg 1.3.0 (as packaged in Fedora 8 at + least) has a bug that can result in an X server crash when cairo + uses certain X Render repeat operations, (as exercised by cairo's + extend-reflect test). We avoid this crash by using fallbacks + whenever a repeating surface is needed for any Xorg server with a + version less than 1.4. This is slower, but should prevent the + crash. + + (Meanwhile, there appears to be a separate bug where some X + servers or specific X-server drivers will use random pixmap data + when asked to draw a repeating surface. The buggy_repeat + workaround would also avoid those problems, but we have not yet + characterized whether the new "version < 1.4" is a good + characterization of those problems or not.) + +cairo-quartz-font +----------------- +Implement cairo_font_extents for this backend. + +The cairo-quartz-font implementation added in the 1.5.14 snapshot was +entirely missing support for the cairo_font_extents function. Thanks to +Richard Hult for pointing out this obvious shortcoming, (and obvious +lack of coverage in our test suite): + + CGFont backend returns 0 font extents + https://bugs.freedesktop.org/show_bug.cgi?id=15319 + +Snapshot 1.5.16 (2008-04-01 Carl Worth ) +=========================================================== +This is the eighth snapshot in cairo's unstable 1.5 series. It comes +less than two weeks after the 1.5.14 snapshot and it really is a +legitimate snapshot, (in spite of sharing this date with that of many +bogus announcements). The major change in this snapshot is that the +cairo-quartz backend is now officially "supported", including new API +to construct a font face from a CGFontRef . Also several bug fixes +have been fixed in many backends. See below for details. + +general +------- +Cairo now depends on pixman 0.10.0 which was recently released. The +latest pixman release can always be found alongside cairo releases at: + + https://cairographics.org/releases + +Increase the precision of color stops for gradients. This fixes a +regression in gradient rendering that had been present since the +1.5.12 snapshot. + +paginated (all of ps, pdf, svg, and win32-printing) +--------------------------------------------------- +Fix assertion failure when some drawing elements are outside the page +boundaries, (this bug was noticed when using Inkscape to print a +drawing with landscape orientation to a portrait-oriented piece of +paper). + +cairo-ps +-------- +Fix of bug causing incorrect glyph positioning. + +Fix handling of CAIRO_OPERATOR_SOURCE. + +cairo-pdf +--------- +More reduction of unnecessary digits of precision in PDF output. + +Fix handling of CAIRO_OPERATOR_SOURCE. + +cairo-svg +--------- +Fix bug in usage of libpng that was preventing cairo_mask from working +with the svg backend. + +Fix transformation of source pattern for cairo_stroke(). + +cairo-win32-printing +-------------------- +Fix fallback resolution, (thanks again to inkscape users/developers +for helping us find this one). + +cairo-quartz +------------ +Mark the cairo-quartz backend as "supported" rather than +"experimental". This means the following: + + * The backend will now be built by default (if possible). + + * We are committing that the backend-specific API (as published in + cairo-quartz.h) are stable and will be supported in all future + cairo 1.x releases. + + * We are committing that the output quality of this backend + compares favorably with other cairo backends, (and that quality + is ensured by good results from the cairo test suite). + + * We recommend that distributions build and distribute this + backend when possible. + +Note that the cairo_quartz_image API (in cairo-quartz-image.h) is +still experimental, will not build by default, (pass +--enable-quartz-image to configure to build it), and may see API +changes before it is marked as "supported" in a future release. + +Put the CAIRO_FONT_TYPE_ATSUI name back into +cairo-deprecated.h. Without this, the cairo 1.5.14 snapshot broke all +builds for applications using the C++ cairomm bindings (and perhaps +others) which have the CAIRO_FONT_TYPE_ATSUI name in their header +files. This breakage happened even for applications not using +cairo-quartz at all. + + Note: Even though the CAIRO_FONT_TYPE_ATSUI name is provided to + avoid this build breakage, we still recommend that bindings and + applications move to the new, and more accurate, + CAIRO_FONT_TYPE_QUARTZ name. + +Replace the implementation of cairo-quartz-font to use CFFont instead +of ATSUI. The CGFont API is a better fit than ATSUI, and this new +implementation is also more correct than the old one as well. + +This also adds the following new API call: + + cairo_public cairo_font_face_t * + cairo_quartz_font_face_create_for_cgfont (CGFontRef font); + +The previous cairo_quartz_font_face_create_for_atsu_font_id function +continues to exist and is part of the supported API going +forward. (However, the old name of that same function, which was +cairo_atsui_font_face_create_for_atsu_font_id is officially +deprecated. Any source code using the old name should be updated to +use the new name.) + +Fix transformation of source pattern for cairo_stroke(). + +cairo-win32 +----------- +Avoid crash in create_similar is cairo_win32_surface_create fails. + +Snapshot 1.5.14 (2008-03-20 Carl Worth ) +=========================================================== +This is the seventh snapshot in cairo's unstable 1.5 series. It comes +3 weeks after the 1.5.12 snapshot. This snapshot includes support for +arbitrary X server visuals, (including PseudoColor), which was the +final remaining cairo-specific item on the cairo 1.6 roadmap. It also +includes a huge number of improvements to the cairo-quartz backend. So +this is effectively a cairo 1.6 release candidate. We expect very few +changes from now until 1.6 and only for specific bug fixes. + +API Change +---------- +Rename ATSUI font backend to Quartz font backend. This affects the +following usage: + + --enable-atsui -> --enable-quartz-font + CAIRO_HAS_ATSUI_FONT -> CAIRO_HAS_QUARTZ_FONT + CAIRO_FONT_TYPE_ATSUI -> CAIRO_FONT_TYPE_QUARTZ + + cairo_atsui_font_face_create_for_atsu_font_id -> + cairo_quartz_font_font_create_for_atsu_font_id + +This API change is justified by the cairo-quartz backend still be +marked as "experimental" rather than "supported", (though this is one +step toward making the change to "supported" before 1.6). Cairo will +still provide ABI compatibility with the old symbol name, however. + +paginated (all of ps, pdf, svg, and win32-printing) +--------------------------------------------------- +Optimize by not analyzing an image surface for transparency more than +once, (previously all images were analyzed twice). + +cairo-ps and cairo-pdf +---------------------- +Avoiding emitting a matrix into the stroke output when unnecessary, +(making output size more efficient). + +Reduce rounding error of path shapes by factoring large scale factors +out of the path matrix, (ensuring that a fixed-number of printed +digits for path coordinates contains as much information as possible). + +Reduce excess digits for text position coordinates. This makes the +output file size much smaller without making the result any less +correct. + +cairo-ps +-------- +Eliminate bug causing extraneous text repetition on Linux PostScript +output in some cases. + + See: Mozilla Bug 419917 – Printed page contents are reflected + inside bordered tables (Linux-only) + + https://bugzilla.mozilla.org/show_bug.cgi?id=419917 + +Optimize output when EXTEND_PAD is used. + +cairo-pdf +--------- +Fix to not use fill-stroke operator with transparent fill, (else PDF +output doesn't match the cairo-defined correct result). See: + + https://bugs.launchpad.net/inkscape/+bug/202096 + +cairo-svg +--------- +Fix stroke of path with a non-solid-color source pattern: + + https://bugs.freedesktop.org/show_bug.cgi?id=14556 + +cairo-quartz +------------ +Fix text rendering with gradient or image source pattern. + +Handling antialiasing correctly for cairo_stroke(), cairo_clip(), and +cairo_show_text()/cairo_show_glyphs(). + +Correctly handle gradients with non-identity transformations: + + Fixes https://bugs.freedesktop.org/show_bug.cgi?id=14248 + +Add native implementation of REPEAT and REFLECT extend modes for +gradients. + +Fix implementation for the "unbounded" operators, (CAIRO_OPERATOR_OUT, +_IN, _DEST_IN, and _DEST_ATOP). + +Correctly handle endiannees in multi-architecture compiles on Mac OS +X. + +Avoid behavior which would cause Core Graphics to print warnings to +the console in some cases. + +cairo-win32 +----------- +Fix handling of miter limit. + +cairo-win32-printing +-------------------- +Fix to not use a 1bpp temporary surface in some cases while printing, +(so grayscale data is preserved rather than just becoming black and +white). + +cairo-xlib +---------- +Add support for rendering to arbitrary TrueColor X server +visuals. This fixes at least the following bugs: + + cairo doesn't support 8-bit truecolor visuals + https://bugs.freedesktop.org/show_bug.cgi?id=7735 + + cairo doesn't support 655 xlib format + https://bugs.freedesktop.org/show_bug.cgi?id=9719 + +Add support for rendering to 8-bit PseudoColor X server visuals. This +fixes the following bug: + + Cairo doesn't support 8-bit pseudocolor visuals + https://bugs.freedesktop.org/show_bug.cgi?id=4945 + +Snapshot 1.5.12 (2008-02-28 Carl Worth ) +=========================================================== +This is the sixth snapshot in cairo's unstable 1.5 series. It comes 1 +week after the 1.5.10 snapshot. This snapshot includes the +long-awaited change from 16.16 to 24.8 fixed-point values, (see below +for why you should care). It also includes several backend-specific +bug fixes. + +24.8 fixed-point format +----------------------- +Cairo has always converted path coordinates to a fixed-point +representation very early in its processing. Historically, this has +been a 32-bit representation with 16 bits of integer for the +device-pixel grid and 16 bits of sub-pixel positioning. The choice of +16 bits for the integer coordinate space was based on the 16-bit limit +for X Window drawables. + +This 16-bit limit has proven problematic for many applications. It's +an especially vexing problem when targeting non-X backends that don't +have any 16-bit restriction. But even when targeting cairo-xlib, it's +often desirable to draw a large shape, (say a background rectangle), +that extends beyond the surface bounds and expect it to fill the +surface completely, (rather than overflowing and triggering random +behavior). + +Meanwhile, nobody has ever really needed 16 bits of sub-pixel +precision. + +With this snapshot, the fixed-point system is still in place and is +still using a 32-bit representation, (future versions of cairo might +move entirely to floating-point when targeting PDF output for +example). But the representation now provides 24 bits of pixel +addressing and only 8 bits of sub-pixel positioning. This should give +a much less stifling space to many applications. + +However, the underlying pixman library still has 16-bit limitations in +many places, (it has its roots in the X server as well). Until those +are also fixed, applications targeting cairo image surfaces, or +hitting software fallbacks when targeting other surfaces will still +encounter problems with device-space values needing more than 16 +integer bits. + +generic fixes +------------- +Add a few tests to the test suite to increase coverage. + +Cleanup a few error-handling paths, (propagate error correctly). + +cairo-ft +-------- +Fix handling of font sizes smaller than 1 device pixel. + +cairo-pdf +--------- +Fix to properly save/restore clip when analyzing meta-surface +patterns, (fixing a couple of test-suite failures). + +Implement native support for CAIRO_OPERATOR_SOURCE when the source +pattern is opaque. + +Emit rectangles as PDF rectangles ("re" operator) rather than as +general paths. + +cairo-ps +-------- +Fix to work properly with the 16.16->24.8 change. + +cairo-svg +--------- +Fix CAIRO_EXTEND_REFLECT by using an image fallback, (there's no +direct SVG support for reflected patterns). + +Fix the use of alpha-only masks, (such as CAIRO_FORMAT_A8). + +cairo-quartz +------------ +Add new API for efficiently using image data as a source: + + cairo_surface_t * + cairo_quartz_image_surface_create (cairo_surface_t *image_surface); + + cairo_surface_t * + cairo_quartz_image_surface_get_image (cairo_surface_t *surface); + +For full documentation, see: + + https://cairographics.org/manual/cairo-Quartz-Surfaces.html#cairo-quartz-image-surface-create + +Several fixes for cairo_mask(). + +cairo-atsui +----------- +Change default from from Monaco to Helvetica to be more consistent +with other font backends. + +Snapshot 1.5.10 (2008-02-20 Carl Worth ) +=========================================================== +This is the fifth snapshot in cairo's unstable 1.5 series. It comes 3 +weeks after the 1.5.8 snapshot. This snapshot adds one new API +function, (cairo_has_current_point), and the usual mix of +improvements, (more efficient PostScript/PDF output, optimized +stroking), and fixes (more robust error-handling, etc.). See below for +details. + +New API +------- +Add a new function to query if there is a current point: + + cairo_bool_t + cairo_has_current_point (cairo_t *cr); + +There is no current point immediately after cairo_create(), nor after +cairo_new_path() or cairo_new_sub_path(). There is a current point +after any of the path-creation functions, (cairo_move_to, +cairo_line_to, cairo_curve_to, etc.). + +With this new function, we also revert the change of the return type +of cairo_get_current_point from cairo 1.5.8, (it's now a void function +again). + +Optimizations +------------- +Optimize stroking code to avoid repeated calculation of redundant +values, (particularly significant for very large, offscreen paths). + +General fixes +------------- +Patch a few more potential buffer overruns, (due to integer +overflow). + +Many fixes and improvements to cairo's error-handling, (ensure that +correct error values are returned, clean up memory leaks on +error-handling paths, etc.). + +Fix a potential infinite loop when stroking a spline with a pen that +has been transformed to a line segment. + +Remove treating NULL as a synonym for a valid cairo_font_options_t* +with default values, (a change that had been introduced as of cairo +1.5.8). + +Remove the altered handling of tolerance and fallback-resolution that +had been introduced as of cairo 1.5.4. + +cairo-xlib +---------- +Pass the original Drawable, (as opposed to the root window), to +XCreatePixmap when creating a similar surface. This gives the X server +more information so that it can be clever and efficient. + +cairo-pdf +--------- +Fix the rendering of repeating and reflecting patterns. + +Ensure miter limit is always >= 1, (smaller limits are not meaningful, +but they can cause some PDF viewers to fail to display pages). + +Generate more efficient output when the same path is used for both +fill and stroke. + +cairo-ps +-------- +Start sharing much of the cairo-pdf code rather than implementing very +similar code in cairo-ps. + +Implement native support for repeating and reflecting linear +gradients. + +Implement reflected surface patterns. + +Ensure miter limit is always >= 1, (smaller limits are not meaningful, +but they can cause some PostScript viewers to crash). + +Generate PostScript that will perform more efficiently and use less +memory on printers, (use currentfile instead of a giant string array +for image data, and avoid using PostScript patterns for paint() and +fill() when possible). + +cairo-svg +--------- +Avoid unnecessary rasterization when copying a "similar" surface to +another svg surface, (allow the SOURCE operator to be implemented with +all-vector operations if there are no underlying objects). + +cairo-atsui +----------- +Eliminate infinite loop when attempting to render an empty string. + +Snapshot 1.5.8 (2008-01-30 Carl Worth ) +========================================================== +This is the fourth snapshot in cairo's unstable 1.5 series. It comes 2 +weeks after the 1.5.6 snapshot. It adds a few new API functions. Most +notably all callers of cairo_image_surface_create_for_data should now +be calling cairo_format_stride_for_width to compute a legal stride +value. See below for more details. + +New API in cairo 1.5.8 +---------------------- +We've added a new function that should be called to compute a legal +stride value before allocating data to be used with +cairo_image_surface_create_for_data: + + int + cairo_format_stride_for_width (cairo_format_t format, + int width); + +We've also added a new cairo_path_extents function that can be used to +compute a bounding box for geometry such as a single line segment, +(contrast with cairo_path_extents and cairo_stroke_extents): + + void + cairo_path_extents (cairo_t *cr, + double *x1, double *y1, + double *x2, double *y2); + +And finally, we've added a function to allow for querying the +XRenderPictFormat of a cairo-xlib surface: + + XRenderPictFormat * + cairo_xlib_surface_get_xrender_format (cairo_surface_t *surface); + +API changes +----------- +Fix return types of cairo_surface_show_page and +cairo_surface_copy_page. This is an API change to functions that are +new in the 1.5 series, so not an API break compared to any stable +cairo release, (1.0.x, 1.2.x, 1.4.x). + +Change the return type of cairo_get_current_point() from void to +cairo_status_t. This allows the caller to receive a +CAIRO_STATUS_NO_CURRENT_POINT value to distinguish the a current point +at the origin from no current point existing. + +Performance improvement +----------------------- +Improve performance of clipping by using an optimized code path +internally, (with the ADD operator instead of IN). + +General bug fixes +----------------- +Fix various cairo_*_extents functions to initialize the return-value +variables even in the case of a cairo_t in error. + +Treat NULL as a legitimate value for cairo_font_options_t*. [NOTE: +On discussion afterwards, we decided against this change so it has +been removed as of cairo 1.5.10.] + +Fix rendering with CAIRO_ANTIALIAS_NONE to be more predictable, (that +is, to avoid seams appearing when geometry and imagery share an +identical edge). Portions of this fix are in the pixman library and +will appear in a future release of that library. + +Avoid triggering an error for a font size of 0. + +Miscellaneous changes +--------------------- +Require pixman >= 0.9.6. + +There has been a tremendous amount improvement to cairo's +documentation. We're delighted that 100% of the public API has at +least some documentation in the API reference manual. Many thanks to +Behdad Esfahbod and Nis Martensen for leading this effort. + +cairo-pdf and cairo-ps +---------------------- +Eliminate failure when a Type 1 font is embedded with an explicit +glyph 0. + +cairo-pdf +--------- +Implement a more correct and more efficient approach for patterns with +an extend mode of CAIRO_EXTEND_REFLECT. + +cairo-ps +-------- +Fix image masks to properly pack and pad mask bits. + +cairo-quartz +------------ +Take care to only use DrawTiledImage for integer-aligned images, (and +use slower paths to get the correct result in other cases). + +cairo-win32 +----------- +Fix for older versions of mingw. + +Improve the handling of the clipping with the win32 and win32-printing +surfaces. + +Fix rendering of non black/white text. + +Snapshot 1.5.6 (2008-01-15 Carl Worth ) +========================================================== +This is the third snapshot in cairo's unstable 1.5 series. It comes +about 6 weeks after the 1.5.4 snapshot. The only API addition compared +to 1.5.4 is very minor, (a new value CAIRO_STATUS_TEMP_FILE_ERROR). +The remainder of the changes are the usual accumulation of bug fixes +and improvements. See below for details. + +General bug fixes +----------------- +Fix handling of fonts that contain a mixture of outline and bitmapped +glyphs. There was a change in this handling in 1.5.4 that improved +some cases and also regressed other cases. Now, all cases should be +handled quite well. + +Fix alignment issues that were causing SIGBUS failures on SPARC. + +Fix a regression (which first appeared in 1.5.2) where stroking under +a large scale would sometimes incorrectly replace a miter join with a +bevel join. (Thanks to Keith Packard.) + +Fix reporting of zero-sized extents to be {0,0} rather than +{INT_MAX,INT_MIN}. This avoids several integer overflow and +allocations of massive regions in some cases. + +Fix failures of gradients with no stops, (quartz, ps, and pdf). + +Fix handling of Type 1 fonts on Windows platforms. + +Fix handling of Type 1 fonts with no specific family name in the font +itself, (generate a CairoFont-x-y name). + +Handle NULL string values in cairo_show_text, cairo_show_glyphs, and +friends. + +Many robustness improvements along error-handling paths, (thanks as +always, to Chris "ickle" Wilson). + +Various other minor fixes. + +Paginated backends (PDF/PostScript/win32-printing) +-------------------------------------------------- +Avoid unnecessary rasterization when using a paginated surface as a +source, (such as drawing from one pdf surface to another). + +Fix replaying of paginated surface with more than one level of push/pop +group. + +cairo-xlib +---------- +Fix xlib backend to not consider recent X server release as having a +buggy repeat implementation in the Render extension. + +cairo-pdf +--------- +Fix PDF output to avoid triggering very slow rendering in PDF viewers, +(avoid starting and stopping the content stream for each pattern +emission). + +Support CAIRO_OPERATOR_SOURCE in cases where there is nothing below +the object being drawn. + +Fix to avoid seams appearing between multiple fallback regions. + +cairo-ps (PostScript) +--------------------- +Use correct bounding box in Type 3 fonts. + +Fix several bugs in cairo's PostScript output. These include making +the PostScript output more compatible with recent versions of +ghostscript that are more strict about Type 3 fonts, for +example. + +Fix for win32 to not attempt to create temporary files in the root +directory, (where the user may not have write permission). + +Avoid generating Level 3 PostScript if Level 2 is sufficient. Also, +add code in output documents to alert the user if Level 3 PostScript +is handed to a device that cannot handle PostScript beyond Level +2. + +cairo-directfb +-------------- +Various performance optimizations. + +Fixed support for small surfaces (less than 8x8). + +Provide support for environment variables CAIRO_DIRECTFB_NO_ACCEL to +disable acceleration and CAIRO_DIRECTFB_ARGB_FONT to enable ARGB fonts +instead of A8. + +cairo-os2 +--------- +Allow OS/2 APIs instead of C library allocation functions. + +Snapshot 1.5.4 (2007-12-05 Carl Worth ) +========================================================== +This is the second snapshot in cairo's unstable 1.5 series. It comes +just over 1 month after the 1.5.2 snapshot. There are no API changes +or additions in 1.5.4 compared to 1.5.2, but there are several bug +fixes, and some optimizations. Most of these apply to particular +backends. See below for details. + +General improvements +-------------------- +Use less memory for spline approximation calculations. + +Change how the tolerance value is interpreted with regard to +fallback-resolution. [Note: On further discussion, we decided against +this change for now. It is removed as of cairo 1.5.10.] + +Fix precision of floating-point values in vector-output backends to +avoid rounding errors with very small numbers. + +Xlib improvements +----------------- +Fix bug in glyph rendering with xlib, (due to everything being clipped +out). This was a regression in the 1.5.2 snapshot that was visible in +the GIMP, for example. See: + + cairo 1.5.2 causes font problems in GIMP 2.4 status bar and evolution 2.12.1 + https://bugs.freedesktop.org/show_bug.cgi?id=13084 + +PostScript improvements +----------------------- +Fix bug leading to invalid PostScript files when rendering +text, (need "0 0 xyshow" instead of "0 xyshow"). + +Fix many issues with Type 3 fonts, including making the resulting text +extractable. + +Quartz improvements +------------------- +Fix font metrics height value for ATSUI, (helps webkit on GTK+ OS X +layout nicely). + +Fix gradients. + +Fix EXTEND_NONE mode for patterns. + +Fix cairo_quartz_surface_create to properly clear the new surface +in cairo_quartz_surface_create. + +Fix to correctly handle 0x0 sized surfaces. + +Optimize drawing of EXTEND_REPEAT patterns for OS X 10.5. + +Snapshot 1.5.2 (2007-10-30 Carl Worth ) +========================================================== +This is the first snapshot in cairo's unstable 1.5 series. It comes 4 +months after the 1.4.10 release. This snapshot includes significant +improvements to PDF and PostScript output, which is one of the things +in which we're most interested in getting feedback. There are a couple +of minor API additions, and several optimizations, (primarily in the +"print/vector" backends). And there are dozens of bug fixes and +robustness improvements. + +New dependency on external pixman library +----------------------------------------- +A significant change in this snapshot compared to all previous cairo +releases is that cairo now depends on an external "pixman" library for +its software rendering. Previously this same code was compiled +internally as part of cairo, but now the code is separate so that both +cairo and the X server can now share common code, (thanks very much to +Søren Sandmann for his work on separating pixman and maintaining it). + +So users will need to acquire and build pixman before being able to +build cairo. The current release is 0.9.6 and can be obtained from +here: + + https://cairographics.org/releases/pixman-0.9.6.tar.gz + + which can be verified with: + + https://cairographics.org/releases/pixman-0.9.6.tar.gz.sha1 + 66f01a682c64403a3d7a855ba5aa609ed93bcb9e pixman-0.9.6.tar.gz + + https://cairographics.org/releases/pixman-0.9.6.tar.gz.sha1.asc + (signed by Carl Worth) + +Major PDF/PostScript improvements +--------------------------------- +Adrian Johnson has done some long-awaited work to make cairo's PDF and +PostScript output more interesting than ever before. First, many +operations that previously triggered image fallbacks will now be +rendered as native vectors. These operations include: + + PDF: cairo_push_group, cairo_surface_create_similar, + cairo_mask, A8/A1 surface sources, repeating/reflecting linear + gradients. + + PostScript: cairo_push_group, cairo_surface_create_similar, + gradients, bilevel alpha masks, (for example, all values either 0 or + 255 for an A8 mask). + +Not only that, but when an image fallback is required, it will now be +limited to only the necessary region. For example, a tiny translucent +image overlaying a small portion of text would previously caused an +entire PostScript page to be rendered as a giant image. Now, the +majority of that page will be nice text, and there will only be a tiny +image in the output. + +Additionally, the PostScript output now carefully encodes text so that +if it is subsequently converted to PDF, the text will be +selectable. + +This is very exciting progress, and we're hoping to hear from users +during the 1.5 series about how things have improved, (for example, +inkscape users doing cairo-based PDF export: please let us know how +things look). And feel free to pass your thanks along to Adrian for his excellent work. + +NOTE: This much improved PDF output makes more sophisticated use of +functionality in the PDF specification. This means that cairo's output +will sometimes expose bugs in some free software PDF viewers, (evince, +poppler, and xpdf, for example), that are not yet ready for such PDF +files. We're working with the poppler maintainers to get these bugs +fixed as quickly as possible. In the meantime, please double-check +with other PDF viewers if cairo-generated PDF files are not being +rendered correctly. It may be due to a bug in the viewer rather than +in the PDF file that cairo has created. + +Robustness improvements +----------------------- +Chris Wilson has made the largest contribution by far to cairo 1.5.2, +(in number of commits). His more than 150 commits include a huge +number of fixes to increase cairo's robustness. These fixes make cairo +more robust against invalid and degenerate input, (NaN, empty path, +etc.), against size-0 malloc calls, against memory leaks on +error-recovery paths, and against other failures during error +handling. He also implemented atomic operations to cairo, and used +them to fix cairo's previously non-thread-safe reference counting, +again improving robustness. + +Chris has put a tremendous amount of time and effort into writing +analysis tools for this work, and in running those tools and fixing +the problems they report. We're very grateful for this work, and hope +that all cairo users appreciate the more robust implementation that +results from it. + +This work is largely thankless, so it might make sense to notice +sometime that cairo has been running quite smoothly for you, and when +you do, send a quick "thank you" off to Chris Wilson, since it +is all definitely running smoother thanks to his work. + +New API +------- +There are no major additions to cairo's core API. The only new, +generic functions are: + + void + cairo_surface_copy_page (cairo_surface_t *surface); + + void + cairo_surface_show_page (cairo_surface_t *surface); + +which can now be used much more conveniently than the existing +cairo_copy_page and cairo_show_page functions in some +situations. These functions act identically, but require only a +cairo_surface_t* and not a cairo_t*. + +All other API additions are specific to particular backends. + +New cairo-win32 API (new font face function and "win32 printing" surface) +------------------------------------------------------------------------- +There is a new function for creating a win32 font face for both a +logfontw and an hfont together. This complements the existing +functions for creating a font face from one or the other: + + cairo_font_face_t * + cairo_win32_font_face_create_for_logfontw_hfont (LOGFONTW *logfont, + HFONT font); + +There is also a new "win32 printing" surface: + + cairo_surface_t * + cairo_win32_printing_surface_create (HDC hdc); + +This interface looks identical to the original +cairo_win32_surface_create, (both accept and HDC), but the behavior of +this new surface is very different. It should only be called with a +printing DC, and will result in all drawing commands being stored into +a meta-surface and emitted after each page is complete, with analysis +to do as minimal image-based fallbacks as necessary. The behavior and +implementation shares much with the PDF and PostScript backends. + +New cairo-ps API (EPS and PostScript level control) +--------------------------------------------------- +An often requested feature has been the ability to generate +Encapsulated PostScript (EPS) with cairo. We have that now with the +following very simple API. Just do cairo_ps_surface_create as usual +then call this function with a true value: + + void + cairo_ps_surface_set_eps (cairo_surface_t *surface, + cairo_bool_t eps); + +[NOTE: As always with snapshots, it's possible---though not very +likely---that the API could still be modified before a final +release. For example, this is the first public cairo function that +accepts a Boolean parameter. I'm generally opposed to Boolean +parameters, but this is probably the one case where I'm willing to +accept one, (namely a "set" function that accepts a single Boolean).] + +Also, it is now possible to control what PostScript level to target, +(either level 2 or level 3), with the following new API: + + typedef enum _cairo_ps_level { + CAIRO_PS_LEVEL_2, + CAIRO_PS_LEVEL_3 + } cairo_ps_level_t; + + void + cairo_ps_surface_restrict_to_level (cairo_surface_t *surface, + cairo_ps_level_t level); + + void + cairo_ps_get_levels (cairo_ps_level_t const **levels, + int *num_levels); + + const char * + cairo_ps_level_to_string (cairo_ps_level_t level); + +Improvement for cairo-quartz +---------------------------- +Brian Ewins had contributed several improvements to cairo-quartz. These +include an implementation of EXTEND_NONE for linear and radial +gradients, (so this extend mode will no longer trigger image fallbacks +for these gradients), as well as native surface-mask clipping, (only +on OS X 10.4+ where the CGContextClipToMask function is available). + +He also fixed a semantic mismatch between cairo and quartz for dashing +with an odd number of entries in the dash array. + +We're grateful for Brian since not many quartz-specific improvements +to cairo would be happening without him. + +Optimizations +------------- +Optimize SVG output for when the same path is both filled and stroked, +and avoid unnecessary identity matrix in SVG output. (Emmanuel Pacaud). + +Optimize PS output to take less space (Ken Herron). + +Make PS output more compliant with DSC recommendations (avoid initclip +and copy_page) (Adrian Johnson). + +Make PDF output more compact (Adrian Johnson). + +Release glyph surfaces after uploading them to the X server, (should +save some memory for many xlib-using cairo application). (Behdad +Esfahbod). + +Optimize cairo-win32 to use fewer GDI objects (Vladimir Vukicevic). + +win32-printing: Avoid falling back to images when alpha == 255 +everywhere. (Adrian Johnson). + +win32-printing: Avoid falling back for cairo_push_group and +cairo_surface_create_similar. (Adrian Johnson) + +Bug fixes +--------- +Avoid potential integer overflows when allocating large buffers +(Vladimir Vukicevic). + +Preparations to allow the 16.16 fixed-point format to change to +24.8 (Vladimir Vukicevic). + +Fix bugs for unsupported X server visuals (rgb565, rgb555, bgr888, and +abgr8888). (Carl Worth and Vladimir Vukicevic) + +Fix bugs in PDF gradients (Adrian Johnson). + +Fix cairo-xlib to build without requiring Xrender header +files (Behdad Esfahbod). + +Make cairo more resilient in the case of glyphs not being available in +the current font. (Behdad Esfahbod) + +Prevent crashes when both atsui and ft font backends are compiled in +(Brian Ewins). + +Make font subsetting code more robust against fonts that don't include +optional tables (Adrian Johnson). + +Fix CFF subsetting bug, (which manifested by generating PDF files that +Apple's Preview viewer could not read) (Adrian Johnson). + +Fixed error handling for quartz and ATSUI backends (Brian Ewins). + +Avoid rounding problems by pre-transforming to avoid integer-only +restrictions on transformation in GDI (Adrian Johnson). + +Fixed an obscure bug (#7245) computing extents for some stroked +paths (Carl Worth). + +Fix crashes due to extreme transformation of the pen, (seems to show +up in many .swf files for some reason) (Carl Worth). + +Release 1.4.10 (2007-06-27 Carl Worth ) +========================================================== +This is the fifth update in cairo's stable 1.4 series. It comes +roughly three weeks after the 1.4.8 release. The most significant +change in this release is a fix to avoid an X error in certain cases, +(that were causing OpenOffice.org to crash in Fedora). There is also a +semantic change to include child window contents when using an xlib +surface as a source, an optimization when drawing many rectangles, and +several minor fixes. + +Eliminate X errors that were killing OO.o (Chris Wilson) +-------------------------------------------------------- +Cairo is fixed to avoid the X errors propagated when cleaning up +Render Pictures after the application had already destroyed the +Drawable they reference. (It would be nice if the X server wouldn't +complain that some cleanup work is already done, but there you have +it.) This fixes the bug causing OpenOffice.org to crash as described +here: + + XError on right click menus in OOo. + https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=243811 + +Use IncludeInferiors when using xlib surface as a source (Ryan Lortie) +---------------------------------------------------------------------- +When an xlib surface is used as the source of a draw operation the +contents of child windows are now included in the source data. The +semantics of drawing to xlib surfaces are unchanged (ie: draws are +still clipped by child windows overlapping the destination window). + +Optimize drawing of many rectangles (Vladimir Vukicevic) +-------------------------------------------------------- +Avoid O(N*N) loop when filling many axis-aligned rectangles, (either +many rectangles as separate sub-paths or due to dashing). + +Miscellaneous fixes +------------------- +Fix cairo-perf on Solaris by linking to librt. (Behdad Esfahbod) + +Fix make check for systems that require executable files to have a +particular extension. (Behdad Esfahbod) + +Eliminate some warnings in cairo-quartz. (Brian Ewins) + +Fix build-breaking typo for cairo-directfb. (Chris Wilson) + +Release 1.4.8 (2007-06-07 Carl Worth ) +========================================================= +This is the fourth update in cairo's stable 1.4 series. It comes just +over five weeks after the 1.4.6 release. This release includes a +thread-safe surface-cache for solid patterns which significantly +improves text rendering with the xlib backend. Also, dozens of error +paths in cairo have been fixed thanks to extensive fault-injection +testing by Chris Wilson. + +Surface cache for solid patterns +-------------------------------- +Originally written by Jorn Baayen, the introduction of a small cache +for surfaces created for solid patterns improves performance +dramatically. For example, this reduces the volume of X requests +during text rendering to the same level as Xft. + +This cache first made its appearance in a 1.3.x snapshot, but was +removed before appearing in any previous major release due to +complications with multi-threaded programs. For example, programs like +evince that would carefully restrict usage of cairo-xlib to a single +thread were unpleasantly surprised to find that using cairo-image in a +separate thread could trigger X requests. + +Behdad Esfahbod designed a fix which was implemented by Chris +Wilson. Now, the necessary X requests are queued up until the next +time the application directly operates on an xlib surface. + +Improved error handling paths +------------------------------ +Chris Wilson continued the excellent work he started in cairo 1.4.4 to +make cairo much more robust against out-of-memory and other errors. He +applied his memory allocation fault injection cairo's main test suite, +(previously he had applied it to cairo's performance suite). + +Chris's testing found dozens of bugs which he fixed. Many of these +bugs had perhaps never been hit by any users. But at least one was +hit by the gnome-about program which resulted in dozens of duplicated +bug reports against that program: + + https://bugzilla.gnome.org/show_bug.cgi?id=431990 + +We were very pleasantly surprised to see this bug get fixed as a +side-effect of Chris's work. Well done, Chris! + +Other fixes +----------- +Cleanup of mutex declarations (Behdad Esfahbod) + +Remove unnecessary clip region from SVG output (Emmanuel Pacaud) + +Remove Xsun from the buggy_repeat blacklist (Elaine Xiong) + +ATSUI: Fix glyph measurement: faster and more correct (Brian Ewins) + +Quartz: fixed 'extend' behaviour for patterns, improved pattern performance, +and a few smaller correctness fixes. (Brian Ewins, Vladimir Vukicevic) + +Release 1.4.6 (2007-05-01 Carl Worth ) +========================================================= +This is the third update in cairo's stable 1.4 series. It comes a +little less than three weeks since the 1.4.4 release. This release +fixes the broken mutex initialization that made cairo 1.4.4 unusable +on win32, OS/2, and BeOS systems. This release also adds significant +improvements to cairo's PDF backend, (native gradients!), and a couple +of performance optimizations, (one of which is very significant for +users of the xlib backend). See below for more details. + +Repaired mutex initialization +----------------------------- +We apologize that cairo 1.4.4 did little more than crash on many +platforms which are less-frequently used by the most regular cairo +maintainers, (win32, OS/2, and BeOS). The mutex initialization +problems that caused those crashes should be fixed now. And to avoid +similar problems in the future, we've now started posting pre-release +snapshots to get better testing, (subscribe to cairo@cairographics.org +if you're interested in getting notified of those and testing them). + +PDF Improvements +---------------- +Thanks to Adrian Johnson, (cairo PDF hacker extraordinaire), we have +several improvements to cairo's PDF backend to announce: + +Native gradients: + + As of cairo 1.4.6, cairo will now generate native PDF gradients in + many cases, (previously, the presence of a gradient on any page + would force rasterized output for that page). Currently, only + gradients with extend types of PAD (the default) or NONE will + generate native PDF gradients---others will still trigger + rasterization, (but look for support for other extend modes in a + future release). Many thanks to Miklós Erdélyi as well, who did the + initial work for this support. + +Better compatibility with PDF viewers: + + The PDF output from cairo should now be displayed correctly by a + wider range of PDF viewers. Adrian tested cairo's PDF output against + many PDF viewers, identified a common bug in many of those viewers + (ignoring the CTM matrix in some cases), and modified cairo's output + to avoid triggering that bugs (pre-transforming coordinates and + using an identity matrix). + +Better OpenType/CFF subsetting: + + Cairo will now embed CFF and TrueType fonts as CID fonts. + +Performance optimizations +------------------------- +Faster cairo_paint_with_alpha: + + The cairo_paint_with_alpha call is used to apply a uniform alpha + mask to a pattern. For example, it can be used to gradually fade an + image out or in. Jeff Muizelaar fixed some missing/broken + optimizations within the implementation of this function resulting + in cairo_paint_with_alpha being up to 4 times faster when using + cairo's image backend. + +Optimize rendering of "off-screen" geometry: + + Something that applications often do is to ask cairo to render + things that are either partially or wholly outside the current clip + region. Since 1.4.0 the image backend has been fixed to not waste + too much time in this case. But other backends have still been + suffering. + + In particular, the xlib backend has often performed quite badly in + this situation. This is due to a bug in the implementation of + trapezoid rasterization in many X servers. + + Now, in cairo 1.4.6 there is a higher-level fix for this + situation. Cairo now eliminates or clips trapezoids that are wholly + or partially outside the clip region before handing the trapezoids + to the backend. This means that the X server's performance bug is + avoided in almost all cases. + + The net result is that doing an extreme zoom-in of vector-based + objects drawn with cairo might have previously brought the X server + to its knees as it allocated buffers large enough to fit all of the + geometry, (whether visible or not). But now the memory usage should + be bounded and performance should be dramatically better. + +Miscellaneous +------------- +Behdad contributed an impressively long series of changes that +organizes cairo's internals in several ways that will be very +beneficial to cairo developers. Thanks, Behdad! + +Behdad has also provided a utility for generating malloc statistics, +(which was used during the great malloc purges of 1.4.2 and +1.4.4). This utility isn't specific to cairo so may be of benefit to +others. It is found in cairo/util/malloc-stats.c and here are Behdad's +notes on using it: + + To build, do: + + make malloc-stats.so + + inside util/, and to use, run: + + LD_PRELOAD=malloc-stats.so some-program + + For binaries managed by libtool, eg, cairo-perf, do: + + ../libtool --mode=execute /bin/true ./cairo-perf + LD_PRELOAD="../util/malloc-stats.so" .libs/lt-cairo-perf + +Finally, the cairo-perf-diff-files utility was enhanced to allow for +generating performance reports from several runs of the same backend +while some system variables were changed. For example, this is now +being used to allow cairo-perf to measure the performance of various +different acceleration architectures and configuration options of the +X.org X server. + +Release 1.4.4 (2007-04-13 Carl Worth ) +========================================================= +This is the second update release in cairo's stable 1.4 series. It +comes just less than a month after 1.4.2. The changes since 1.4.2 +consist primarily of bug fixes, but also include at least one +optimization. See below for details. + +Of all the work that went into the 1.4.4 release + +There have been lots of individuals doing lots of great work on cairo, +but two efforts during the 1.4.4 series deserve particular mention: + +Internal cleanup of error handling, (Chris Wilson) +-------------------------------------------------- +Chris contributed a tremendous series of patches (74 patches!) to +improve cairo's handling of out-of-memory and other errors. He began +by adding gcc's warn_unused_attribute to as many functions as +possible, and then launched into the ambitious efforts of adding +correct code to quiet the dozens of resulting warnings. + +Chris also wrote a custom valgrind skin to systematically inject +malloc failures into cairo, and did all the work necessary to verify +that cairo's performance test suite runs to completion without +crashing. + +The end result is a much more robust implementation. Previously, many +error conditions would have gone unnoticed and would have led to +assertion failures, segmentation faults, or other harder-to-diagnose +problems. Now, more than ever, cairo should cleanly let the user know +of problems through cairo_status and other similar status +functions. Well done, Chris! + +More malloc reduction, (Mathias Hasselmann) +------------------------------------------- +After 1.4.0, Behdad launched an effort to chase down excessive calls +to malloc within the implementation of cairo. He fixed a lot of +malloc-happy objects for 1.4.2, but one of the worst offenders, +(pixman regions), was left around. Mathias contributed an excellent +series of 15 patches to finish off this effort. + +The end result is a cairo that calls malloc much less often than it +did before. Compared to 1.4.2, 55% of the calls to malloc have been +eliminate, (and 60% have been eliminated compared to 1.4.0). Well +done, Mathias! + +Other improvements since 1.4.2 +------------------------------ +• Centralize mutex declarations (will reduce future build breaks), + (Mathias Hasselmann) + +• Reduce malloc by caching recently freed pattern objects (Chris + Wilson) + +• Fix some broken composite operations (David Reveman) + https://bugs.freedesktop.org/show_bug.cgi?id=5777 + +Backend-specific fixes +---------------------- +PDF: + • Use TJ operator for more compact representation of glyphs (Adrian + Johnson) + + • Fix glyph positioning bug when glyphs are not horizontal + https://lists.freedesktop.org/archives/cairo/2007-April/010337.html + +win32: + • Fix crash when rendering with bitmap fonts (Carl Worth) + https://bugzilla.mozilla.org/show_bug.cgi?id=376498 + +xlib: + • Turn metrics-hinting on by default (Behdad Esfahbod) + + • Fix edge-effect problem with transformed images drawn to xlib + (Behdad Esfahbod) + https://bugs.freedesktop.org/show_bug.cgi?id=10508 + + • Avoid dereferencing a NULL screen. (Chris Wilson) + https://bugs.freedesktop.org/show_bug.cgi?id=10517 + +Quartz/ATSUI: + • Fix scaling of glyph surfaces + (Brian Ewins) + https://bugs.freedesktop.org/show_bug.cgi?id=9568 + + • Fix compilation failure when both xlib and quartz enabled + (Brian Ewins) + + • Fix rounding bug leading to incorrectly positioned glyphs + (Robert O'Callahan) + https://bugs.freedesktop.org/show_bug.cgi?id=10531 + +Release 1.4.2 (2007-03-19 Carl Worth ) +========================================================= +This is the first update release in cairo's stable 1.4 series. It +comes just less than 2 weeks after 1.4.0. We hadn't anticipated an +update this early, but we've managed to collect some important fixes +that we wanted to get out to cairo users as soon as possible, (6 fixes +for crashes, 1 case where graphical elements would not be drawn at +all, a handful of backend-specific bugs, and several important build +fixes). + +There's almost nothing but bug fixes in this release, (see below one +optimization that Behdad did sneak in), so we recommend that everyone +upgrade to this release when possible. + +Thanks to the many people that worked to fix these bugs, and those +that did the work to report them and to test the fixes, (wherever +possible both names are credited below). + +Critical fixes +-------------- +• Fix a crash due to a LOCK vs. UNLOCK typo (M. Drochner fixing Carl + Worth's embarrassing typo). + + https://bugs.freedesktop.org/show_bug.cgi?id=10235 + +• Fix potential buffer overflow, which on some systems with a checking + variant of snprintf would lead to a crash (Adrian Johnson, Stanislav + Brabec, and sangu). + + https://bugs.freedesktop.org/show_bug.cgi?id=10267 + https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=232576 + +• Fix a crash in cairo_stroke_extents or cairo_in_stroke when line + width is 0.0. (Carl Worth and Sebastien Bacher) + + https://bugs.freedesktop.org/show_bug.cgi?id=10231 + +• Fix a crash on certain combinations of X server/video drivers (Carl + Worth and Tomas Carnecky). + + https://bugs.freedesktop.org/show_bug.cgi?id=10250 + +• Fix a crash due to mishandling of invalid user input (Carl Worth and + Alexander Darovsky). + + https://bugs.freedesktop.org/show_bug.cgi?id=9844 + +• xlib: Cleanup server-side glyph caches on XCloseDisplay. This + eliminated a crash detected by the perf suite, (and that + applications could have run into as well). (Chris Wilson) + +Other bug fixes +--------------- +• Fix for some geometry which simply disappeared under some + transformations---a stroked line with an extreme skew in X, for + example (Carl Worth and Jonathan Watt). + + https://bugzilla.mozilla.org/show_bug.cgi?id=373632 + +• SVG: Fix radial gradients for CAIRO_EXTEND_REFLECT and when r0 > r1 + (Emmanuel Pacaud). + +• PDF: Set page group color space to DeviceRGB. + + This fixes incorrect (muddy) transparent colors when rendering cairo + PDF output in some viewers. (Adrian Johnson, Adam Goode, and + MenTaLguY). + + https://lists.freedesktop.org/archives/cairo/2006-November/008551.html + +• win32: Return correct metrics when hinting is off, and fix font + descent computation (Behdad Esfahbod). + +• quartz: Fix glyph interfaces to correctly return user-space rather + than device-space coordinates (Brian Ewins). + + https://bugs.freedesktop.org/show_bug.cgi?id=9568 + +• xcb: Fix parameter-order confusion with xcb_create_pixmap, which now + makes all tests that pass with xlib now pass with xcb (Carl Worth, + Jamey Sharp). + +• Fix some memory leaks in the perf suite (Chris Wilson). + +• Fix perf suite to consider changes in pixman/src (Mathias + Hasselmann). + +Build fixes +----------- +• Don't include pre-generated cairo-features.h file. This was causing + build failures when building with the directfb backend enabled + (Behdad Esfahbod). + + https://bugs.freedesktop.org/show_bug.cgi?id=10189 + +• Eliminate use of maintainer mode from cairo's automake/configure + script. This means that updates to files such as Makefile.am will + take effect, (by rerunning automake and friends as necessary) when + invoking make rather than being silently ignored. (Behdad Esfahbod) + +• Don't compile cairo-deflate-stream.c, which depends on zlib, unless + building the pdf backend which requires it. (Carl Worth, Tor + Lillqvist) + + https://bugs.freedesktop.org/show_bug.cgi?id=10202 + +• Don't make the ps backend link against zlib anymore, since it + doesn't require it (Carl Worth). + +• Use "find !" rather than "find -not" for better portability (Thomas + Klausner). + + https://bugs.freedesktop.org/show_bug.cgi?id=10226 + +• Don't use unsupported visibility attribute "hidden" on Solaris + (Gilles Dauphin, Thomas Klausner). + + https://bugs.freedesktop.org/show_bug.cgi?id=10227 + +Optimization +------------ +• It was Behdad that suggested we focus strictly on bug fixes now that + we shipped so many performance improvements in 1.4.0, but it was + also Behdad that got distracted by the chance to remove a lot of + mallocs from cairo. Paths, gstates, trapezoids, splines, polygons, + and gradient color stops will now use small, stack-allocated buffers + in the most common cases rather than calling malloc as + often. (Behdad Esfahbod). And look for more from Mathias Hasselmann + soon. + +Release 1.4.0 (2007-03-06 Carl Worth ) +========================================================= +The many people[*] who have been working hard on cairo are very +pleased to announce the long-awaited release of cairo 1.4. This +release comes 4 months after the last stable update release (1.2.6) +and 9 months since the initial release of 1.2.0. + +The release notes below are intended to capture the highlights of the +changes that have occurred from the 1.2 series to the new 1.4.0 +release. + +Performance improvements +------------------------ +Within the cairo project, the last 6 months or so has seen an intense +effort focusing on the performance of cairo itself. That effort has +paid off considerably, as can be seen in the following highlights of +some of the performance differences from cairo 1.2.6 to cairo 1.4.0. + +(Note: The performance results reported here were measured on an x86 +laptop. Many of the improvements in 1.4---particular those involving +text rendering---are even more dramatic on embedded platforms without +hardware floating-point units. Such devices played an important part +of many of the optimizations that found their way into cairo over the +last few months.) + +• Dramatic improvement when drawing objects that are mostly off-screen + with the image backend (with the xlib backend this case is still + slow due to an X server bug): + + image-rgba long-lines-uncropped-100 479.64 -> 4.98: 96.24x speedup + ███████████████████████████████████████████████▋ + +• Dramatic improvement when copying a small fraction of an image + surface to an xlib surface: + + xlib-rgba subimage_copy-512 3.93 -> 0.07: 54.52x speedup + ██████████████████████████▊ + +• Dramatic improvement to tessellation speed for complex objects: + + image-rgb tessellate-256-100 874.16 -> 34.79: 25.13x speedup + ████████████■+ xlib-rgba zrusin_another_fill-415 148.40 -> 13.85: 10.72x speedup + ████▉ + xlib-rgb world_map-800 680.20 -> 345.54: 1.97x speedup + ▌ + +• Dramatic improvement to the speed of stroking rectilinear shapes, + (such as the outline of a rectangle or "box"): + + image-rgb box-outline-stroke-100 0.18 -> 0.01: 24.22x speedup + ███████████▋ + xlib-rgb box-outline-stroke-100 0.46 -> 0.06: 8.05x speedup + ███▌ + + +• Dramatic improvements to text rendering speeds: + + xlib-rgba text_image_rgba_over-256 63.12 -> 9.61: 6.57x speedup + ██▊ + +• 3x improvements to floating-point to fixed-point conversion speeds: + + image-rgba pattern_create_radial-16 9.29 -> 3.44: 2.70x speedup + ▉ + +• 2x improvements to linear gradient computation: + + image-rgb paint_linear_rgb_source-512 26.22 -> 11.61: 2.26x speedup + ▋ + +• 2x improvement to a case common in PDF rendering: + + image-rgb unaligned_clip-100 0.10 -> 0.06: 1.81x speedup + ■+ +• 1.3x improvement to rectangle filling speed (note: this improvement + is new since 1.3.16---previously this test case was a 1.3x slowdown + compared to 1.2.6): + + image-rgba rectangles-512 6.19 -> 4.37: 1.42x speedup + ▎ + xlib-rgba rectangles-512 7.48 -> 5.58: 1.34x speedup + ■+ +NOTE: In spite of our best efforts, there are some measurable +performance regressions in 1.4 compared to 1.2. It appears that the +primary problem is the increased overhead of the new tessellator when +drawing many, very simple shapes. The following test cases capture +some of that slowdown: + + image-rgba mosaic_tessellate_lines-800 11.03 -> 14.29: 1.30x slowdown + ■+ image-rgba box-outline-fill-100 0.01 -> 0.01: 1.26x slowdown + ■+ image-rgba fill_solid_rgb_over-64 0.20 -> 0.22: 1.12x slowdown + + image-rgba fill_image_rgba_over-64 0.23 -> 0.25: 1.10x slowdown + + xlib-rgb paint_image_rgba_source-256 3.24 -> 3.47: 1.07x slowdown + +We did put some special effort into eliminating this slowdown for the +very common case of drawing axis-aligned rectangles with an identity +matrix (see the box-outline-stroke and rectangles speedup numbers +above). Eliminating the rest of this slowdown will be a worthwhile +project going forward. + +Also note that the "box-outline-fill" case is a slowdown while +"box-outline-stroke" is a (huge) speedup. These two test cases +resulted from the fact that some GTK+ theme authors were filling +between two rectangles to avoid slow performance from the more natural +means of achieving the same shape by stroking a single rectangle. With +1.4 that workaround should definitely be eliminated as it will now +cause things to perform more slowly. + +Greatly improved PDF output +--------------------------- +We are very happy to be able to announce that cairo-generated PDF +output will now have text that can be selected, cut-and-pasted, and +searched with most capable PDF viewer applications. This is something +that was not ever possible with cairo 1.2. + +Also, the PDF output now has much more compact encoding of text than +before. Cairo is now much more careful to not embed multiple copies of +the same font at different sizes. It also compresses text and font +streams within the PDF output. + +API additions +------------- +There are several new functions available in 1.4 that were not +available in 1.2. Curiously, almost all of the new functions simply +allow the user to query state that has been set in cairo (many new +"get" functions) rather than providing any fundamentally new +operations. The new functionality is: + +• Getting information about the current clip region + + cairo_clip_extents + cairo_copy_clip_rectangle_list + cairo_rectangle_list_destroy + +• Getting information about the current dash setting + + cairo_get_dash_count + cairo_get_dash + +• Getting information from a pattern + + cairo_pattern_get_rgba + cairo_pattern_get_surface + cairo_pattern_get_color_stop_rgba + cairo_pattern_get_color_stop_count + cairo_pattern_get_linear_points + cairo_pattern_get_radial_circles + +• Getting the current scaled font + + cairo_get_scaled_font + +• Getting reference counts + + cairo_get_reference_count + cairo_surface_get_reference_count + cairo_pattern_get_reference_count + cairo_font_face_get_reference_count + cairo_scaled_font_get_reference_count + +• Setting/getting user data on objects + + cairo_set_user_data + cairo_get_user_data + cairo_pattern_set_user_data + cairo_pattern_get_user_data + cairo_scaled_font_set_user_data + cairo_scaled_font_get_user_data + +• New cairo-win32 functions: + + cairo_win32_surface_create_with_ddb + cairo_win32_surface_get_image + cairo_win32_scaled_font_get_logical_to_device + cairo_win32_scaled_font_get_device_to_logical + +API deprecation +--------------- +The CAIRO_FORMAT_RGB16_565 enum value has been deprecated. It never +worked as a format value for cairo_image_surface_create, and it wasn't +necessary for supporting 16-bit 565 X server visuals. + +A sampling of bug fixes in cairo 1.4 +------------------------------------ + • Fixed radial gradients + • Fixed dashing (degenerate and "leaky" cases) + • Fixed transformed images in PDF/PS output (eliminate bogus repeating) + • Eliminate errors from CAIRO_EXTEND_REFLECT and CAIRO_EXTEND_PAD + • cairo_show_page no longer needed for single-page output + • SVG: Fix bug preventing text from appearing in many viewers + • cairo-ft: Return correct metrics when hinting is off + • Eliminate crash in cairo_create_similar if nil surface is returned + • Eliminate crash after INVALID_RESTORE error + • Fix many bugs related to multi-threaded use and locking + • Fix for glyph spacing 32 times larger than desired (cairo-win32) + • Fixed several problems in cairo-atsui (assertion failures) + • Fix PDF output to avoid problems when printing from Acrobat Reader + • Fix segfault on Mac OS X (measuring a zero-length string) + • Fix text extents to not include the size of non-inked characters + • Fix for glyph cache race condition in glitz backend (Jinghua Luo) + • Fix make check to work on OPD platforms (IA64 or PPC64) + • Fix compilation problems of cairo "wideint" code on some platforms + • Many, many others... + +Experimental backends (quartz, XCB, OS/2, BeOS, directfb) +--------------------------------------------------------- +None of cairo's experimental backends are graduating to "supported" +status with 1.4.0, but two of them in particular (quartz and xcb), are +very close. + +The quartz baceknd has been entirely rewritten and is now much more +efficient. The XCB backend has been updated to track the latest XCB +API (which recently had a 1.0 release). + +We hope to see these backends become supported in a future release, +(once they are passing all the tests in cairo's test suite). + +The experimental OS/2 backend is new in cairo 1.4 compared to cairo +1.2. + +Documentation improvements +-------------------------- +We have added documentation for several functions and types that +were previously undocumented, and improved documentation on other +ones. As of this release, there remain only two undocumented +symbols: cairo_filter_t and cairo_operator_t. + +[*]Thanks to everyone +--------------------- +I've accounted for 41 distinct people with attributed code added to +cairo between 1.2.6 and 1.4.0, (their names are below). That's an +impressive number, but there are certainly dozens more that +contributed with testing, suggestions, clarifying questions, and +encouragement. I'm grateful for the friendships that have developed as +we have worked on cairo together. Thanks to everyone for making this +all so much fun! + +Adrian Johnson, Alfred Peng, Alp Toker, Behdad Esfahbod, +Benjamin Otte, Brian Ewins, Carl Worth, Christian Biesinger, +Christopher (Monty) Montgomery, Daniel Amelang, Dan Williams, +Dave Yeo, David Turner, Emmanuel Pacaud, Eugeniy Meshcheryakov, +Frederic Crozat, Hans Breuer, Ian Osgood, Jamey Sharp, Jeff Muizelaar, +Jeff Smith, Jinghua Luo, Jonathan Watt, Joonas Pihlaja, Jorn Baayen, +Kalle Vahlman, Kjartan Maraas, Kristian Høgsberg, M Joonas Pihlaja, +Mathias Hasselmann, Mathieu Lacage, Michael Emmel, Nicholas Miell, +Pavel Roskin, Peter Weilbacher, Robert O'Callahan, +Soren Sandmann Pedersen, Stuart Parmenter, T Rowley, +Vladimir Vukicevic + +Snapshot 1.3.16 (2007-03-02 Carl Worth ) +=========================================================== +New API functions +----------------- +A few new public functions have been added to the cairo API since the +1.3.14 snapshot. These include a function to query the current scaled +font: + + cairo_get_scaled_font + +New functions to query the reference count of all cairo objects: + + cairo_get_reference_count + + cairo_surface_get_reference_count + cairo_pattern_get_reference_count + + cairo_font_face_get_reference_count + cairo_scaled_font_get_reference_count + +And new functions to allow the use of user_data with any cairo object, +(previously these were only available on cairo_surface_t and +cairo_font_face_t objects): + + cairo_set_user_data + cairo_get_user_data + + cairo_pattern_set_user_data + cairo_pattern_get_user_data + + cairo_scaled_font_set_user_data + cairo_scaled_font_get_user_data + +Usability improvement for PDF/PS/SVG generation +----------------------------------------------- +In previous versions of cairo, generating single-page output with the +cairo-pdf, cairo-ps, or cairo-svg backends required a final call to +cairo_show_page. This was often quite confusing as people would port +functional code from a non-paginated backend and be totally mystified +as to why the output was blank until they learned to add this call. + +Now that call to cairo_show_page is optional, (it will be generated +implicitly if the user does not call it). So cairo_show_page is only +needed to explicitly separate multiple pages. + +Greatly improved PDF output +--------------------------- +We are very happy to be able to announce that cairo-generated PDF +output will now have text that can be selected, cut-and-paste, and +searched with most capable PDF viewer applications. This is something +that was not ever possible with cairo 1.2. + +Also, the PDF output now has much more compact encoding of text than +before. Cairo is now much more careful to not embed multiple copies of +the same font at different sizes. It also compresses text and font +streams within the PDF output. + +Major bug fixes +--------------- + • Fixed radial gradients + + The rendering of radial gradients has been greatly improved. In + the cairo 1.2 series, there was a serious regression affecting + radial gradients---results would be very incorrect unless one of + the gradient circles had a radius of 0.0 and a center point within + the other circle. These bugs have now been fixed. + + • Fixed dashing + + Several fixes have been made to the implementation of dashed + stroking. Previously, some dashed, stroked rectangles would + mis-render and fill half of the rectangle with a large triangular + shape. This bug has now been fixed. + + • Fixed transformed images in PDF/PS output + + In previous versions of cairo, painting with an image-based source + surface pattern to the PDF or PS backends would cause many kinds + of incorrect results. One of the most common problems was that an + image would be repeated many times even when the user had + explicitly requested no repetition with CAIRO_EXTEND_NONE. These + bugs have now been fixed. + + • Eliminate errors from CAIRO_EXTEND_REFLECT and CAIRO_EXTEND_PAD + + In the 1.2 version of cairo any use of CAIRO_EXTEND_REFLECT or + CAIRO_EXTEND_PAD with a surface-based pattern resulted in an + error, (cairo would stop rendering). This bug has now been + fixed. + + Now, CAIRO_EXTEND_REFLECT should work properly with surface + patterns. + + CAIRO_EXTEND_PAD is still not working correctly, but it will now + simply behave as CAIRO_EXTEND_NONE rather than triggering the + error. + +New rewrite of quartz backend (still experimental) +-------------------------------------------------- +Cairo's quartz backend has been entirely rewritten and is now much +more efficient. This backend is still marked as experimental, not +supported, but it is now much closer to becoming an officially +supported backend. (For people that used the experimental nquartz +backend in previous snapshots, that implementation has now been +renamed from "nquartz" to "quartz" and has replaced the old quartz +backend.) + +Documentation improvements +-------------------------- +We have added documentation for several functions and types that +were previously undocumented, and improved documentation on other +ones. As of this release, there remain only two undocumented +symbols: cairo_filter_t and cairo_operator_t. + +Other bug fixes +--------------- + • cairo-svg: Fix bug that was preventing text from appearing in many + viewers + + • cairo-ft: Return correct metrics when hinting is off + + • Cairo 1.3.14 deadlocks in cairo_scaled_font_glyph_extents or + _cairo_ft_unscaled_font_lock_face + + https://bugs.freedesktop.org/show_bug.cgi?id=10035 + + • cairo crashes in cairo_create_similar if nil surface returned by + other->backend->create_similar + + https://bugs.freedesktop.org/show_bug.cgi?id=9844 + + • evolution crash in _cairo_gstate_backend_to_user() + https://bugs.freedesktop.org/show_bug.cgi?id=9906 + + • Fix memory leak in rectilinear stroking code + +Things not in this release +-------------------------- + • Solid-surface-pattern cache: This patch had been applied during + the 1.3.x series, but it was reverted due to some inter-thread + problems it caused. The patch is interesting since it made a big + benefit for text rendering performance---so we'll work to bring a + corrected version of this patch back as soon as possible. + +Snapshot 1.3.14 (2006-02-13 Carl Worth ) +=========================================================== +This is the seventh development snapshot in the 1.3 series, (and there +likely won't be many more before the 1.4.0 release). It comes just +over 3 weeks after the 1.3.12 snapshot. + +Since we're so close to the 1.4.0 release, there are not a lot of new +features nor even a lot of new performance improvements in this +snapshot. Instead, there are a great number of bug fixes. Some are +long-standing bugs that we're glad to say goodbye to, and several are +fixes for regressions that were introduced as part of the optimization +efforts during the 1.3.x series. + +PDF text selection fixed +------------------------ +The inability to correctly select text in cairo-generated PDF has been +a defect ever since the initial support for the PDF backend in the +cairo 1.2.0 release. With the 1.3.14 snapshot, in most situations, and +with most PDF viewer applications, the PDF generated by cairo will +allow text to be correctly selected for copy-and-paste, (as well as +searching). + +We're very excited about this new functionality, (and very grateful to +Adrian Johnson, Behdad Esfahbod, and others that have put a lot of +work into this lately). Please test this new ability and give feedback +on the cairo@cairographics.org list. + +Many thread-safety issues fixed +------------------------------- +We've discovered that no release of cairo has ever provided safe text +rendering from a multi-threaded application. With the 1.3.14 snapshot +a huge number of the bugs in this area have been fixed, and multiple +application dvelopers have now reported success at writing +multi-threaded applications with cairo. + +Other fixes +----------- +Fixed a bug that was causing glyph spacing to be 32 times larger than +desired when using cairo-win32. + +Fixed a regression in the rendering of linear gradients that had been +present since the 1.3.8 snapshot. + +Fixed several problems in cairo-atsui that were leading to assertion +failures when rendering text. + +Fix corrupted results when rendering a transformed source image +surface to an xlib surface. This was a regression that had been +present since the 1.3.2 snapshot. + +Fixed PDF output to prevent problems printing from some versions of +Acrobat Reader, (a single glyph was being substituted for every +glyph). + +And many other fixes as well, (see the logs for details). + +Snapshot 1.3.12 (2007-01-20 Carl Worth ) +=========================================================== +The relentless march toward the cairo 1.4 release continues, (even if +slightly late out of the starting blocks in 2007). This is the sixth +development snapshot in the 1.3 series. It comes 4 weeks after the +1.3.10 snapshot. + +Performance +----------- +As usual, this snapshot has some fun performance improvements to show +off: + +image-rgba long-lines-uncropped-100 470.08 -> 4.95: 94.91x speedup +███████████████████████████████████████████████ +image-rgb long-lines-uncropped-100 461.60 -> 4.96: 93.02x speedup +██████████████████████████████████████████████ + +This 100x improvement, (and yes, that's 100x, not 100%), in the image +backend occurs when drawing large shapes where only a fraction of the +shape actually appears in the final result, (the rest being outside +the bounds of the destination surface). Many applications should see +speedups here, and the actual amount of speedup depends on the ratio +of non-visible to visible portions of geometry. + +[Note: There remains a similar performance bug when drawing mostly +non-visible objects with the xlib backend. This is due to a similar +bug in the X server itself, but we hope a future cairo snapshot will +workaround that bug to get a similar speedup with the xlib backend.] + +image-rgba unaligned_clip-100 0.09 -> 0.06: 1.67x speedup +■+image-rgb unaligned_clip-100 0.09 -> 0.06: 1.66x speedup +■+ +This speedup is due to further MMX optimization by Soeren Sandmann for +a case commonly hit when rendering PDF files, (and thanks to Jeff +Muizelaar for writing code to extract the test case for us). + +There's another MMX optimization in this snapshot (without a fancy +speedup chart) by Dan Williams which improves compositing performance +specifically for the OLPC machine. + +Thanks to Adrian Johnson, cairo's PDF output is now much more +efficient in the way it encodes text output. By reducing redundant +information and adding compression to text output streams, Adrian +achieved a ~25x improvement in the efficiency of encoding text in PDF +files, (was ~45 bytes per glyph and is now ~1.6 bytes per glyph). + +Bug fixes +--------- +In addition to those performance improvements, this snapshot includes +several bug fixes: + + * A huge number of bug fixes for cairo-atsui text rendering, (for mac + OS X). These bugs affect font selection, glyph positioning, glyph + rendering, etc. One noteworthy bug fixes is that + cairo_select_font_face will no longer arbitrarily select bold nor + italic when not requested, (at least not when using a standard CSS2 + font family name such as "serif", "sans-serif", "monospace", etc.). + All these fixes are thanks to Brian Ewins who continues to do a + great job as the new cairo-atsui maintainer. + + * Fix PDF output so that images that are scaled down no longer + mysteriously repeat (Carl Worth). + + * Fix segfault on Mac OS X dues to attempt to measure extents of a + zero-length string (Behdad Esfahbod). + + * Fix text extents to not include the size of initial/trailing + non-inked characters (Behdad Esfahbod). + +API tweaks +---------- +Three functions have had API changes to improve consistency. Note that +the API functions being changed here are all functions that were +introduced as new functions during these 1.3.x snapshots. As always, +there will not be any API changes to functions included in a major +release (1.2.x, 1.4.x, etc.) of cairo. + +The changes are as follows: + + * Rename of cairo_copy_clip_rectangles to cairo_copy_clip_rectangle_list. + + * Change cairo_get_dash_count to return an int rather than accepting a + pointer to an int for the return value. + + * Change cairo_get_dash to have a void return type rather than + returning cairo_status_t. + +It's possible there will be one more round of changes to these +functions, (and perhaps cairo_get_color_stop as well), as we seek to +establish a unifying convention for returning lists of values. + +Snapshot 1.3.10 (2006-12-23 Carl Worth ) +=========================================================== +Santa Claus is coming just a little bit early this year, and he's +bringing a shiny new cairo snapshot for all the good little boys and +girls to play with. + +This is the fifth development snapshot in the 1.3 series. It comes 9 +days after the 1.3.8 snapshot, and still well within our goal of +having a new snapshot every week, (though don't expect one next +week---we'll all be too stuffed with sugar plums). + +Speaking of sugar plums, there's a sweet treat waiting in this cairo +snapshot---greatly improved performance for stroking rectilinear +shapes, like the ever common rectangle: + +image-rgb box-outline-stroke-100 0.18 -> 0.01: 25.58x speedup +████████████████████████▋ +image-rgba box-outline-stroke-100 0.18 -> 0.01: 25.57x speedup +████████████████████████▋ +xlib-rgb box-outline-stroke-100 0.49 -> 0.06: 8.67x speedup +███████▋ +xlib-rgba box-outline-stroke-100 0.22 -> 0.04: 5.39x speedup +████■+ +In past releases of cairo, some people had noticed that using +cairo_stroke to draw rectilinear shapes could be awfully slow. Many +people had worked around this by using cairo_fill with a more complex +path and gotten a 5-15x performance benefit from that. + +If you're one of those people, please rip that workaround out, as now +the more natural use of cairo_stroke should be 1.2-2x faster than the +unnatural use of cairo_fill. + +And if you hadn't ever implemented that workaround, then you just +might get to see your stroked rectangles now get drawn 5-25x faster. + +Beyond that performance fix, there are a handful of bug fixes in this +snapshot: + + * Fix for glyph cache race condition in glitz backend (Jinghua Luo) + + * Many fixes for ATSUI text rendering (Brian Ewins) + + * Un-break recent optimization-triggered regression in rendering text + with a translation in the font matrix (Behdad Esfahbod) + + * Fix make check to work on OPD platforms (IA64 or PPC64) + (Frederic Crozat) + + * Fix a couple of character spacing issues on Windows + (Jonathan Watt) + +Have fun with that, everybody, and we'll be back for more in the new +year, (with a plan to add the last of our performance improvements in +this round, fix a few bad, lingering bugs, and then finish off a nice, +stable 1.4 release before the end of January). + +-Carl + +Snapshot 1.3.8 (2006-12-14 Carl Worth ) +========================================================== +This is the fourth development snapshot in the 1.3 series. It comes +just slightly more than one week after the 1.3.6 snapshot. + +After the bug fixes in 1.3.6, we're back to our original program of +weekly snapshots, each one faster than the one from the week +before. Cairo 1.3.8 brings a 2x improvement in the speed of rendering +linear gradients (thanks to David Turner), and a significant reduction +in X traffic when rendering text (thanks to Xan Lopez and Behdad +Esfahbod), making cairo behave very much like Xft does. + +A few other things in the 1.3.8 snapshot worth noting include a more +forgiving image comparator in the test suite, (using the "perceptual +diff" metric and GPL implementation by Hector Yee[*]), a bug fix for +broken linking on x86_64 (thanks to M Joonas Pihlaja) and an even +better implementation of _cairo_lround, (not faster, but supporting a +more complete input range), from Daniel Amelang. + +[*] http://pdiff.sourceforge.net/ + +Snapshot 1.3.6 (2006-12-06 Carl Worth ) +========================================================== +This is the third development snapshot in the 1.3 series. It comes two +weeks after the 1.3.4 snapshot. + +We don't have fancy performance charts this week as the primary +changes in this snapshot are bug fixes. The performance work continues +and the next snapshot (planned for one week from today) should include +several improvements. The bug fixes in this snapshot include: + + * Fix undesirable rounding in glyph positioning (Dan Amelang) + + This bug was noticed by several users, most commonly by seeing + improper text spacing or scrambled glyphs as drawn by nautilus. For + example: + + Update to cairo-1.3.4 worsen font rendering + https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=217819 + + * Fix reduced range of valid input coordinates to tessellator + (M Joonas Pihlaja) + + This bug was causing lots of assertion failures in mozilla as + mentioned here: + + CAIRO_BO_GUARD_BITS and coordinate space? + https://lists.freedesktop.org/archives/cairo/2006-December/008743.html + + * Fix several regressions in new tessellator (M Joonas Pihlaja) + + Joonas just had a good eye for detail here. I don't think any + external cairo users had noticed any of these bugs yet. + + * Fix compilation problems of cairo "wideint" code on some platforms + (Mathieu Lacage) + + * Fix failed configure due to broken grep (Dan Amelang) + + This bug was reported here: + + AX_C_FLOAT_WORDS_BIGENDIAN doesn't work because grep doesn't + work with binary file + https://bugs.freedesktop.org/show_bug.cgi?id=9124 + + * Remove the pkg-config minimum version requirement (Behdad Esfahbod) + + Some systems ship with pkg-config 0.15 and there was really no good + reason for cairo to insist on having version 0.19 before it would + build. + +There is also one new (but inert) feature in this snapshot. There's a +new option that can be passed to cairo's configure script: + + --disable-some-floating-point + + Disable certain code paths that rely heavily on double precision + floating-point calculation. This option can improve + performance on systems without a double precision floating-point + unit, but might degrade performance on those that do. + +As of this snapshot, this option does not make any change to cairo, +but it is possible that future versions of cairo will respect this +option and change the implementation of various functions as +appropriate. + +Snapshot 1.3.4 (2006-11-22 Carl Worth ) +========================================================== +This is the second development snapshot in the 1.3 series. It comes +one week after the 1.3.2 snapshot. + +This snapshot has a couple of significant performance improvements, +and also adds new support for producing multi-page SVG output, (when +targeting SVG 1.2)---thanks to Emmanuel Pacaud. The details of the +performance improvements are as follows: + +1. The long-awaited "new tessellator". + + The credit for this being an improvement goes to Joonas Pihlaja. He + took my really slow code and really put it through its paces to get + the dramatic performance improvement seen below (up to 38x faster + on realistic cases, and more than 10x faster for the zrusin_another + test). + + His own writeup of the work he did is quite thorough, but more than + can be quoted here. Please see his post for the interesting details: + + https://lists.freedesktop.org/archives/cairo/2006-November/008483.html + + (Though note that this snapshot also includes some additional, + significant improvements that were only sketched out in that + email---see "Generating fewer trapezoids"). + +2. More floating-point improvements + + Daniel Amelang continues to work the magic he began in the 1.3.2 + snapshot. This time he short-circuits floating-point + transformations by identity matrices and applies the earlier + floating-to-fixed-point technique to the problem of rounding. + + The improvements here will primarily benefit text performance, and + will benefit platforms without hardware floating-point more than + those that have it, (some text tests show 20% improvement on an x86 + machine and closer to 80% improvement on arm). + +The performance chart comparing 1.3.2 to 1.3.4 really speaks for +itself, (this is on an x86 laptop). This is quite a lot of progress +for one week: + + xlib-rgb stroke_similar_rgba_over-256 74.99 1.45% -> 2.03 68.38%: 36.86x speedup +███████████████████████████████████▉ + xlib-rgb stroke_similar_rgba_source-256 78.23 1.43% -> 3.30 67.05%: 23.71x speedup +██████████████████████▊ + xlib-rgba tessellate-256-100 820.42 0.15% -> 35.06 2.84%: 23.40x speedup +██████████████████████■+image-rgba tessellate-256-100 819.55 0.32% -> 35.04 3.56%: 23.39x speedup +██████████████████████■+ xlib-rgb stroke_image_rgba_over-256 78.10 1.43% -> 4.33 65.56%: 18.04x speedup +█████████████████ + xlib-rgb stroke_image_rgba_source-256 80.11 1.63% -> 5.75 63.99%: 13.94x speedup +█████████████ + xlib-rgba zrusin_another_tessellate-415 89.22 0.35% -> 8.38 5.23%: 10.65x speedup +█████████▋ +image-rgba zrusin_another_tessellate-415 87.38 0.89% -> 8.37 5.22%: 10.44x speedup +█████████■+image-rgba zrusin_another_fill-415 117.67 1.34% -> 12.88 2.77%: 9.14x speedup +████████■+ xlib-rgba zrusin_another_fill-415 140.52 1.57% -> 15.79 2.88%: 8.90x speedup +███████▉ +image-rgba tessellate-64-100 9.68 3.42% -> 1.42 0.60%: 6.82x speedup +█████▉ + xlib-rgba tessellate-64-100 9.78 4.35% -> 1.45 0.83%: 6.72x speedup +█████▊ + xlib-rgb stroke_linear_rgba_over-256 46.01 2.44% -> 7.74 54.51%: 5.94x speedup +█████ + xlib-rgb stroke_linear_rgba_source-256 48.09 2.15% -> 9.14 53.00%: 5.26x speedup +████▎ + xlib-rgb stroke_radial_rgba_over-256 50.96 2.34% -> 12.46 47.99%: 4.09x speedup +███■+ xlib-rgb stroke_radial_rgba_source-256 53.06 1.57% -> 13.96 46.57%: 3.80x speedup +██▊ +image-rgba paint_similar_rgba_source-256 0.12 1.57% -> 0.08 9.92%: 1.42x speedup +■+image-rgba paint_image_rgba_source-256 0.12 2.49% -> 0.08 10.70%: 1.41x speedup +■+image-rgba world_map-800 356.28 0.46% -> 275.72 1.15%: 1.29x speedup +▎ + xlib-rgba world_map-800 456.81 0.39% -> 357.95 1.39%: 1.28x speedup +▎ +image-rgb tessellate-16-100 0.09 0.57% -> 0.07 3.43%: 1.23x speedup +▎ +image-rgba tessellate-16-100 0.09 0.06% -> 0.07 2.46%: 1.23x speedup +▎ +image-rgba text_solid_rgb_over-256 5.39 4.01% -> 4.47 0.70%: 1.21x speedup +▎ +image-rgba text_solid_rgba_over-256 5.37 0.82% -> 4.45 0.75%: 1.21x speedup +▎ +image-rgba text_image_rgb_over-64 0.78 0.10% -> 0.65 0.74%: 1.20x speedup +▎ +image-rgba text_image_rgba_over-64 0.78 0.29% -> 0.65 0.68%: 1.19x speedup +▎ +image-rgb text_solid_rgb_over-64 0.76 2.45% -> 0.63 0.81%: 1.19x speedup +▎ +image-rgba text_solid_rgba_over-64 0.76 0.33% -> 0.64 0.66%: 1.19x speedup +▎ +image-rgba text_similar_rgba_over-256 5.99 4.72% -> 5.04 1.09%: 1.19x speedup +▎ + +We should point out that there is some potential for slowdown in this +snapshot. The following are the worst slowdowns reported by the cairo +performance suite when comparing 1.3.2 to 1.3.4: + +image-rgba subimage_copy-256 0.01 0.87% -> 0.01 3.61%: 1.45x slowdown +▌ + xlib-rgb paint_solid_rgb_over-256 0.31 10.23% -> 0.38 0.33%: 1.26x slowdown +▎ +image-rgba box-outline-fill-100 0.01 0.30% -> 0.01 2.52%: 1.21x slowdown +▎ +image-rgba fill_solid_rgb_over-64 0.20 1.22% -> 0.22 1.59%: 1.12x slowdown +■+image-rgb fill_similar_rgb_over-64 0.21 1.04% -> 0.24 1.06%: 1.11x slowdown +■+image-rgba fill_image_rgb_over-64 0.21 1.19% -> 0.24 0.72%: 1.11x slowdown +■+image-rgba fill_similar_rgb_over-64 0.21 0.18% -> 0.24 0.30%: 1.11x slowdown +■+image-rgb fill_solid_rgba_over-64 0.22 1.66% -> 0.24 1.15%: 1.11x slowdown +■+image-rgb fill_image_rgb_over-64 0.21 0.14% -> 0.24 0.80%: 1.11x slowdown +■+image-rgba fill_image_rgba_over-64 0.22 1.34% -> 0.25 0.20%: 1.11x slowdown +■+image-rgba fill_solid_rgba_over-64 0.22 1.48% -> 0.24 0.95%: 1.11x slowdown +■+image-rgb fill_similar_rgba_over-64 0.22 1.13% -> 0.25 1.25%: 1.10x slowdown +■+ +The 45% slowdown for subimage_copy is an extreme case. It's unlikely +to hit many applications unless they often use cairo_rectangle; +cairo_fill to copy a single pixel at a time. In any case, it shows a +worst-case impact of the overhead of the new tessellator. The other +slowdowns (~ 10%) are probably more realistic, and still very +concerning. + +We will work to ensure that performance regressions like these are not +present from one major release of cairo to the next, (for example, +from 1.2 to 1.4). + +But we're putting this 1.3.4 snapshot out there now, even with this +potential slowdown so that people can experiment with it. If you've +got complex geometry, we hope you will see some benefit from the new +tessellator. If you've got primarily simple geometry, we hope things +won't slowdown too much, but please let us know what slowdown you see, +if any, so we can calibrate our performance suite against real-world +impacts. + +Thanks, and have fun with cairo! + +Snapshot 1.3.2 (2006-11-14 Carl Worth ) +========================================================== +This is the first development snapshot since the 1.2 stable series +branched off shortly after the 1.2.4 release in August 2006. + +This snapshot includes all the bug fixes from the 1.2.6 release, +(since they originated here on the 1.3 branch first and were +cherry-picked over to 1.2). But more importantly, it contains some new +API in preparation for a future 1.4 release, and most importantly, it +contains several performance improvements. + +The bug fixes will not be reviewed here, as most of them are already +described in the 1.2.6 release notes. But details for the new API and +some performance improvements are included here. + +As with all snapshots, this is experimental code, and the new API +added here is still experimental and is not guaranteed to appear +unchanged in any future release of cairo. + +API additions +------------- +Several new API additions are available in this release. There is a +common theme among all the additions in that they allow cairo to +advertise information about its state that it was refusing to +volunteer earlier. So this isn't groundbreaking new functionality, but +it is essential for easily achieving several tasks. + +The new functions can be divided into three categories: + + Getting information about the current clip region + ------------------------------------------------- + cairo_clip_extents + cairo_copy_clip_rectangles + cairo_rectangle_list_destroy + + Getting information about the current dash setting + -------------------------------------------------- + cairo_get_dash_count + cairo_get_dash + + Getting information from a pattern + ---------------------------------- + cairo_pattern_get_rgba + cairo_pattern_get_surface + cairo_pattern_get_color_stop_rgba + cairo_pattern_get_color_stop_count + cairo_pattern_get_linear_points + cairo_pattern_get_radial_circles + +In each of these areas, we have new API for providing a list of +uniform values from cairo. The closest thing we had to this before was +cairo_copy_path, (which is rather unique in providing a list of +non-uniform data). + +The copy_clip_rectangles/rectangle_list_destroy functions follow a +style similar to that of cairo_copy_path. Meanwhile, the dash and +pattern color stop functions introduce a new style in which there is a +single call to return the number of elements available (get_dash_count +and get_color_stop_count) and then a function to be called once to get +each element (get_dash and get_color_stop_rgba). + +I'm interested in hearing feedback from users of these new API +functions, particularly from people writing language bindings. One +open question is whether the clip "getter" functionality should adopt +a style similar to that of the new dash and color_stop interfaces. + +API deprecation +--------------- +The CAIRO_FORMAT_RGB16_565 enum value has been deprecated. It never +worked as a format value for cairo_image_surface_create, and it wasn't +necessary for supporting 16-bit 565 X server visuals. + +XCB backend changes +------------------- +The XCB backend has been updated to track the latest XCB API (which +recently had a 1.0 release). + +New quartz backend +------------------ +Vladimir Vukicevic has written a new "native quartz" backend which +will eventually replace the current "image-surface wrapping" quartz +backend. For now, both backends are available, (the old one is +"quartz" and the new one is "nquartz"). But it is anticipated that the +new backend will replace the old one and take on the "quartz" name +before this backend is marked as supported in a release of cairo. + +New OS/2 backend +---------------- +Doodle and Peter Weilbacher have contributed a new, experimental +backend for using cairo on OS/2 systems. + +Performance improvements +------------------------ +Here are some highlights from cairo's performance suite showing +improvements from cairo 1.2.6 to cairo 1.3.2. The command used to +generate this data is: + + ./cairo-perf-diff 1.2.6 HEAD + +available in the perf/ directory of a recent checkout of cairo's +source, (the cairo-perf-diff script does require a git checkout and +will not work from a tar file---though ./cairo-perf can still be used +to generate a single report there and ./cairo-perf-diff-files can be +used to compare two reports). + +Results are described below both for an x86 laptop (with an old Radeon +video card, recent X.org build, XAA, free software drivers), as well +as for a Nokia 770. First the x86 results with comments on each, (all +times are reported in milliseconds). + +Copying subsets of an image surface to an xlib surface (much faster) +-------------------------------------------------------------------- + xlib-rgba subimage_copy-512 10.50 -> : 53.97x speedup +█████████████████████████████████████████████████████ + +Thanks to Christopher (Monty) Montgomery for this big performance +improvement. Any application which has a large image surface and is +copying small pieces of it at a time to an xlib surface, (imagine an +application that loads a single image containing all the "sprites" for +that application), will benefit from this fix. The larger the ratio of +the image surface to the portion being copied, the larger the benefit. + +Floating-point conversion (3x faster) +------------------------------------- + xlib-rgba pattern_create_radial-16 27.75 -> 3.93 : 2.94x speedup +██ +image-rgb pattern_create_radial-16 26.06 -> 3.74 : 2.90x speedup +█▉ + +Thanks to Daniel Amelang, (and others who had contributed the idea +earlier), for this nice improvement in the speed of converting +floating-point values to fixed-point. + +Text rendering (1.3 - 2x faster) +------------------------------ + xlib-rgba text_image_rgba_source-256 319.73 -> 62.40 : 2.13x speedup +█■+image-rgb text_solid_rgba_over-64 2.85 -> 0.88 : 1.35x speedup +■+ +I don't think we've ever set out to improve text performance +specifically, but we did it a bit anyway. I believe the extra +improvement in the xlib backend is due to Monty's image copying fix +above, and the rest is due to the floating-point conversion speedup. + +Thin stroke improvements (1.5x faster) +--------------------------------------------- +image-rgb world_map-800 1641.09 -> 414.77 : 1.65x speedup +▋ + xlib-rgba world_map-800 1939.66 -> 529.94 : 1.52x speedup +▌ + +The most modest stuff to announce in this release is the 50% +improvement I made in the world_map case. This is in improvement that +should help basically anything that is doing strokes with many +straight line segments, (and the thinner the better, since that makes +tessellation dominate rasterization). The fixes here are to use a +custom quadrilateral tessellator rather than the generic tessellator +for straight line segments and the miter joins. + +Performance results from the Nokia 770 +-------------------------------------- + xlib-rgba subimage_copy-512 55.88 -> 2.04 : 27.34x speedup +██████████████████████████■+ xlib-rgb text_image_rgb_over-256 1487.58 -> 294.43 : 5.05x speedup +████ +image-rgb pattern_create_radial-16 187.13 -> 91.86 : 2.04x speedup +█ + xlib-rgba world_map-800 21261.41 -> 15628.02 : 1.36x speedup +■+ +Here we see that the subimage_copy improvement was only about half as +large as the corresponding improvement on my laptop, (27x faster +compared to 54x) and the floating-point conversion fix also was quite +as significant, (2x compared to 3x). Oddly the improvement to text +rendering performance was more than twice as good (5x compared to +2x). I don't know what the reason for that is, but I don't think it's +anything anybody should complain about. + +Release 1.2.6 (2006-11-02 Behdad Esfahbod ) +============================================================== +This is the third bug fix release in the 1.2 series, coming less than +two months after the 1.2.4 release made on August 18. + +The 1.2.4 release turned out to be a pretty solid one, except for a crash +bug when forwarding an X connection where the client and the server have +varying byte orders, eg. from a PPC to an i686. Other than that, various +other small bugs have been fixed. + +Various improvements have been made in the testing infrastructure to prevent +false positives, and to make sure the generated cairo shared object behaves as +expected in terms of exported symbols and relocations. + +There were a total of 89 changes since 1.2.4. The following list the most +important ones: + +Common fixes +------------ +- Avoid unsigned loop control variable to eliminate infinite, + memory-scribbling loop. (#7593) +- Fix cairo_image_surface_create to report INVALID_FORMAT errors. + Previously the detected error was being lost and a nil surface was + returned that erroneously reported CAIRO_STATUS_NO_MEMORY. +- Change _cairo_color_compute_shorts to not rely on any particular + floating-point epsilon value. (#7497) +- Fix infinite-join test case (bug #8379) +- Pass correct surface to create_similar in _cairo_clip_init_deep_copy(). + +PS/PDF fixes +------------ +- Fix Type 1 embedding in PDF. +- Correct the value of /LastChar in the PDF Type 1 font dictionary. +- Improve error checking in TrueType subsetting. +- Compute right index when looking up left side bearing. (bug #8180) +- Correct an unsigned to signed conversion problem in truetype subsetting + bbox. +- Type1 subsetting: Don't put .notdef in Encoding when there are 256 glyphs. +- Add cairo version to PS header / PDF document info dictionary. +- Set CTM before path construction. + +Win32 fixes +----------- +- Get correct unhinted outlines on win32. (bug 7603) +- Make cairo as a win32 static library possible. +- Use CAIRO_FORMAT_RGB24 for BITSPIXEL==32 surfaces too. + +Build system fixes +------------------ +- Define WINVER if it's not defined. (bug 6456) +- Fix the AMD64 final link by removing SLIM from pixman. +- Misc win32 compilation fixes. +- Add Sun Pro C definition of pixman_private. +- Use pixman_private consistently as prefix not suffix. +- Added three tests check-plt.sh, check-def.sh, and check-header.sh that check + that the shared object, the .def file, and the public headers agree about + the exported symbols. +- Require pkg-config 0.19. (#8686) + + +Release 1.2.4 (2006-08-18 Carl Worth ) +========================================================= +This is the second bug fix release in the 1.2 series, coming less than +two weeks after the 1.2.2 release made on August 8. + +The big motivation for a quick release was that there were a log of +build system snags that people ran into with the 1.2.2 release. But, +by the time we got those all done, we found that we had a bunch of +fixes for cairo's rendering as well. So there's a lot of goodness in +here for such a short time period. + +Rendering fixes +--------------- +Fix image surfaces to not be clipped when used as a source (Vladimir Vukicevic) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=72e25648c4c4bc82ddd938aa4e05887a293f0d8b + +Fix a couple of corner cases in dashing degenerate paths (Jeff Muizelaar) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=fbb1758ba8384650157b2bbbc93d161b0c2a05f0 + +Fix support for type1 fonts on win32 (Adrian Johnson) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=da1019c9138695cb838a54f8b871bbfd0e8996d7 + +Fix assertion failure when rotating bitmap fonts (Carl Worth) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=0bfa6d4f33b8ddb5dc55bbe419c15df4af856ff9 + +Fix assertion failure when calling cairo_text_path with bitmap fonts (Carl Worth) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=9878a033531e6b96b5f27e69e10e90dee7440cd9 + +Fix mis-handling of cairo_close_path in some situations (Tim Rowley, Carl Worth) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=53f74e59faf1af78f2f0741ccf1f23aa5dad4efc + +Respect font_matrix translation in _cairo_gstate_glyph_path (Behdad Esfahbod) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=f183b835b111d23e838889178aa8106ec84663b3 + +Fix vertical metrics adjustment to work with non-identity shapes (Behdad Esfahbod) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=b7bc263842a798d657a95e539e1693372448837f + +[PS] Set correct ImageMatrix in _cairo_ps_surface_emit_bitmap_glyph_data (Behdad Esfahbod) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=d47388ad759b0a1a0869655a87d9b5eb6ae2445d + +Build system fixes +------------------ +Fix xlib detection to prefer pkg-config to avoid false libXt dependency (Behdad Esfahbod) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=0e78e7144353703cbd28aae6a67cd9ca261f1d68 + +Fix typos causing win32 build problem with PS,PDF, and SVG backends (Behdad Esfahbod) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=aea83b908d020e26732753830bb3056e6702a774 + +Fix configure cache to not use stale results (Behdad Esfahbod) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=6d0e3260444a2d5b6fb0cb223ac79f1c0e7b3a6e + +Fix to not pass unsupported warning options to the compiler (Jens Granseuer) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=97524a8fdb899de1ae4a3e920fb7bda6d76c5571 + +Fix to allow env. variables such as png_REQUIRES to override configure detection (Jens Granseuer) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=abd16e47d6331bd3811c908e524b4dcb6bd23bf0 + +Fix test suite to not use an old system cairo when converting svg2png (Behdad Esfahbod) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=6122cc85c8f71b1ba2df3ab86907768edebe1781 + +Fix test suite to not require signal.h to be present (Behdad Esfahbod) +https://gitweb.freedesktop.org/?p=cairo;a=commit;h=6f8cf53b1e1ccdbe1ab6a275656b19c6e5120e40 + +Code cleanups +------------- +Many useful warnings cleanups from sparse, valgrind, and careful eyes +(Kjartan Maraas, Pavel Roskin) + +Release 1.2.2 (2006-08-08 Carl Worth ) +========================================================= +This is the first bug fix release in the 1.2 series since the original +1.2.0 release made six weeks ago. + +There were some very serious bugs in the 1.2.0 release, (see below), +so everybody is encouraged to upgrade from 1.2.0 to 1.2.2. The 1.2.2 +release maintains source and binary compatibility with 1.2.0 and does +not make any API additions. + +Fix crashes with BGR X servers +------------------------------ +With cairo 1.2.0 many people reported problems with all cairo-using +programs, (including all GTK+ programs with GTK+ >= 2.8) immediately +crashing with a complaint about an unsupported image format. This bug +affected X servers that do not provide the Render extension and that +provide a visual with BGR rather than RGB channel order. + +report: https://bugs.freedesktop.org/show_bug.cgi?id=7294 +fix: https://gitweb.freedesktop.org/?p=cairo;a=commit;h=9ae66174e774b57f16ad791452ed44efc2770a59 + +Fix the "disappearing text" bug +------------------------------- +With cairo 1.2.0 many people reported that text would disappear from +applications, sometimes reappearing with mouse motion or +selection. The text would disappear after the first space in a string +of text. This bug was caused by an underlying bug in (very common) X +servers, and only affected text rendered without antialiasing, (either +a bitmap font or a vector font with antialiasing disabled). The bug +was also exacerbated by a KDE migration bug that caused antialiasing +to be disabled more than desired. + +report: https://bugs.freedesktop.org/show_bug.cgi?id=7494 +fix: https://gitweb.freedesktop.org/?p=cairo;a=commit;h=456cdb3058f3b416109a9600167cd8842300ae14 +see also: +Xorg: https://bugs.freedesktop.org/show_bug.cgi?id=7681 +KDE: http://qa.mandriva.com/show_bug.cgi?id=23990 + +Fix broken image fallback scaling (aka. "broken printing") +---------------------------------------------------------- +The various "print" backends, (pdf, ps, and svg), sometimes fallback +to using image-based rendering for some operations. In cairo 1.2.0 +these image fallbacks were scaled improperly. Applications using cairo +can influence the resolution of the image fallbacks with +cairo_surface_set_fallback_resolution. With the bug, any value other +than 72.0 would lead to incorrect results, (larger values would lead +to increasingly shrunken output). + +report: https://bugs.freedesktop.org/show_bug.cgi?id=7533 +fix: https://gitweb.freedesktop.org/?p=cairo;a=commit;h=1feb4291cf7813494355459bb547eec604c54ffb + +Fix inadvertent semantic change of font matrix translation (Behdad Esfahbod) +---------------------------------------------------------------------------- +The 1.2.0 release introduced an inadvertent change to how the +translation components of a font matrix are interpreted. In the 1.0 +series, font matrix translation could be used to offset the glyph +origin, (though glyph metrics were reported incorrectly in +1.0). However in 1.2.0, the translation was applied to the advance +values between each glyph. The 1.2.0 behavior is fairly useless in +practice, and it was not intentional to introduce a semantic +change. With 1.2.2 we return to the 1.0 semantics, with a much better +implementation that provides correct glyph metrics. + +fix: https://gitweb.freedesktop.org/?p=cairo;a=commit;h=84840e6bba6e72aa88fad7a0ee929e8955ba9051 + +Fix create_similar to preserve fallback resolution and font options (Behdad Esfahbod) +------------------------------------------------------------------------------------- +There has been a long-standing issue with cairo_surface_create_similar +such that font options and other settings from the original +destination surface would not be preserved to the intermediate +"similar" surface. This could result in incorrect rendering +(particularly with respect to text hinting/antialiasing) with +fallbacks, for example. + +report: https://bugs.freedesktop.org/show_bug.cgi?id=4106 +fixes: https://gitweb.freedesktop.org/?p=cairo;a=commit;h=9fcb3c32c1f16fe6ab913e27eb54d18b7d9a06b0 + https://gitweb.freedesktop.org/?p=cairo;a=commit;h=bdb4e1edadb78a2118ff70b28163f8bd4317f1ec + +xlib: Fix text performance regression from 1.0 to 1.2.0 (Vladimir Vukicevic) +---------------------------------------------------------------------------- +Several people noticed that upgrading from cairo 1.0 to cairo 1.2.0 +caused a significant performance regression when using the xlib +backend. This performance regression was particularly noticeable when +doing lots of text rendering and when using a high-latency connection +to the X server, (such as a remote X server over an ssh +connection). The slowdown was identified and fixed in 1.2.2. + +report: https://bugs.freedesktop.org/show_bug.cgi?id=7514 +fix: https://gitweb.freedesktop.org/?p=cairo;a=commit;h=b7191885c88068dad57d68ced69a752d1162b12c + +PDF: Eliminate dependency on FreeType library dependency (Adrian Johnson) +------------------------------------------------------------------------- +The cairo 1.2 series adds a supported pdf backend to cairo. In cairo +1.2.0 this backend required the freetype library, which was an +undesirable dependency on systems such as win32, (cairo is designed to +always prefer the "native" font system). As of cairo 1.2.2 the +freetype library is not required to use the pdf backend on the win32 +platform. + +report: https://bugs.freedesktop.org/show_bug.cgi?id=7538 +fix: https://gitweb.freedesktop.org/?p=cairo;a=commit;h=a0989f427be87c60415963dd6822b3c5c3781691 + +PDF: Fix broken output on amd64 (Adrian Johnson) +------------------------------------------------ +report: https://bugzilla.gnome.org/show_bug.cgi?id=349826 +fix: https://gitweb.freedesktop.org/?p=cairo;a=commit;h=f4b12e497b7ac282b2f6831b8fb68deebc412e60 + +PS: Fix broken output for truetype fonts > 64k (Adrian Johnson) +--------------------------------------------------------------- +fix: https://gitweb.freedesktop.org/?p=cairo;a=commit;h=067d97eb1793a6b0d0dddfbd0b54117844511a94 + +PDF: Fix so that dashing doesn't get stuck on (Kent Worsnop) +------------------------------------------------------------ +Kent notices that with the PDF backend in cairo 1.2.0 as soon as a +stroke was performed with dashing, all subsequent strokes would also +be dashed. There was no way to turn dashing off again. + +fix: https://gitweb.freedesktop.org/?p=cairo;a=commit;h=778c4730a86296bf0a71080cf7008d7291792256 + +Fix memory leaks in failure paths in gradient creation (Alfred Peng) +-------------------------------------------------------------------- +fix: https://gitweb.freedesktop.org/?p=cairo;a=commit;h=db06681b487873788b51a6766894fc619eb8d8f2 + +Fix memory leak in _cairo_surface_show_glyphs (Chris Wilson) +------------------------------------------------------------ +report: https://bugs.freedesktop.org/show_bug.cgi?id=7766 +fix: https://gitweb.freedesktop.org/?p=cairo;a=commit;h=e2fddcccb43d06486d3680a19cfdd5a54963fcbd + +Solaris: Add definition of cairo_private for some Sun compilers (Alfred Peng) +----------------------------------------------------------------------------- +report: https://bugzilla.mozilla.org/show_bug.cgi?id=341874 +fix: https://gitweb.freedesktop.org/?p=cairo;a=commit;h=04757a3aa8deeff3265719ebe01b021638990ec6 + +Solaris: Change version number of Sun's Xorg server with buggy repeat (Brian Cameron) +------------------------------------------------------------------------------------- +report: https://bugs.freedesktop.org/show_bug.cgi?id=7483 +fix: https://gitweb.freedesktop.org/?p=cairo;a=commit;h=e0ad1aa995bcec4246c0b8ab0d5a5a79871ce235 + +Various memory leak fixes +------------------------- +Fix memory leak in _cairo_surface_show_glyphs (bug 7766) +Fix file handle leak in failure path (bug 7616) +Fix some memory leaks in the test cases. +Fix some memory leaks in font subsetting code used in print backends. + +Documentation improvements (Behdad Esfahbod) +-------------------------------------------- +Added new documentation for several functions (cairo_show_page, +cairo_copy_page, cairo_in_stroke, cairo_in_fill). + +Fixed some syntax errors that were preventing some existing +documentation from being published. + +Fixed several minor typographical errors. + +Added an index for new symbols in 1.2. + +Release 1.2.0 (2006-06-27 Carl Worth ) +========================================================= +This is the culmination of the work that has gone on within the 1.1 +branch of cairo. + +There has been one API addition since the cairo 1.1.10 snapshot: + + cairo_xlib_surface_get_width + cairo_xlib_surface_get_height + +There's also a new feature without any API change: + + Dots can now be drawn by using CAIRO_LINE_CAP_ROUND with + degenerate sub-paths, (cairo_move_to() followed by either + cairo_close_path() or a cairo_line_to() to the same location). + +And at least the following bugs have been fixed: + + 6759 fontconfig option AntiAlias doesn't work in cairo 1.1.2 + 6955 Some characters aren't displayed when using xlib (cache u... + 7268 positive device_offset values don't work as source + * PDF emit_glyph function needs to support bitmapped glyphs + * PS emit_glyph function needs to support bitmapped glyphs + * SVG emit_glyph function needs to support bitmapped glyphs + * PDF: minefield page one is falling back unnecessarily + * PS/PDF: Fix broken placement for vertical glyphs + * PS: Fix to not draw BUTT-capped zero-length dash segments + * Do device offset before float->fixed conversion + https://bugzilla.gnome.org/show_bug.cgi?id=332266 + * PS: Fix source surfaces with transformations + * PS: Fix to not draw BUTT-capped degenerate sub-paths + * PS: Don't walk off end of array when printing "~>" + * Fix some memory leaks in the test suite rig + * SVG: Fix memory leak when using cairo_mask + * Fix EXTEND_REFLECT and EXTEND_PAD to not crash (though these are + still not yet fully implemented for surface patterns). + +This has been a tremendous effort by everyone, and I'm proud to have +been a part of it. Congratulations to all contributors to cairo! + +Snapshot 1.1.10 (2006-06-16 Carl Worth ) +=========================================================== +This is the fifth in a series of snapshots working toward the 1.2 +release of cairo. + +The primary motivation for this snapshot is to fix a long-standing bug +that had long been silent, but as of the 1.1.8 snapshot started +causing crashes when run against 16-bit depth X servers, (often Xvnc +or Xnest). The fix for this adds a new CAIRO_FORMAT_RGB16_565 to the +API. + +This snapshot also includes a rewrite of cairo's SVG backend to +eliminate the dependency on libxml2. With this in place, cairo 1.2 +will not depend on any libraries that cairo 1.0 did not. + +As usual, there are also a few fixes for minor bugs. + +Snapshot 1.1.8 (2006-06-14 Carl Worth ) +========================================================== +This is the fourth in a series of snapshots working toward the 1.2 +release of cairo. At this point, all major features of the 1.2 release +are in place, leaving just a few bug fixes left. + +In particular, there well be no additional API changes between this +1.1.8 snapshot and the 1.2 release. + +The announcement for 1.1.6 mentioned several API changes being +considered. Only one of these changes was actually implemented +(set_dpi -> fallback_resolution). This change does introduce one +source-level incompatibility with respect to previous 1.1.x snapshots, +so see below for details. + +Here is an abbreviated summary of changes since the 1.1.6 snapshot: + +** API Change ** +---------------- +According to the plan mentioned in the 1.1.6 notes, one source-level +incompatible change has been implemented. The following three +functions have been removed from cairo's API: + + cairo_pdf_surface_set_dpi + cairo_ps_surface_set_dpi + cairo_svg_surface_set_dpi + +and in their place the following function has been added: + + cairo_surface_set_fallback_resolution + +The signature and semantics of the function remains the same, so it is +a simple matter of changing the name of the function when calling +it. As a transition mechanism, this snapshot will (on many systems) +build to include the old symbols so that code previously compiled will +still run. However, all source code using the old names must be +updated before it will compile. And the upcoming 1.2 release is not +anticipated to include the old symbols. + +Finally, it should be pointed out that the old symbols never existed +in the supported API of any stable release of cairo. (In the stable +1.0 releases the PDF, PS, and SVG backends were advertised as +experimental and unstable.) + +And, as always, cairo continues to maintain source and binary +compatibility between major releases. So applications compiled against +supported backends in a stable release of cairo (1.0.4 say) will +continue to compile and run without modification against new major +releases (1.2.0 say) without modification. + +API additions +------------- +The following new functions have been added to cairo's API: + + cairo_surface_get_content + cairo_debug_reset_static_data + cairo_image_surface_get_data + cairo_image_surface_get_format + cairo_image_surface_get_stride + cairo_win32_font_face_create_for_hfont + +New, backend-specific pkg-config files +-------------------------------------- +In addition to the original cairo.pc file, cairo will also now install +a pkg-config files for each configured backend, (for example +cairo-pdf.pc, cairo-svg.pc, cairo-xlib.pc, cairo-win32.pc, etc.) this +also includes optional font backends (such as cairo-ft.pc) and the +optional png functionality (cairo-png.pc). + +These new pkg-config files should be very convenient for allowing +cairo-using code to easily check for the existing of optional +functionality in cairo without having to write complex rules to grub +through cairo header files or the compiled library looking for +symbols. + +Printing backend (PS, PDF, and SVG) +----------------------------------- +Improving the quality of the "printing" backends has been a priority +of the development between cairo 1.1.6 and cairo 1.1.8. + +The big improvement here is in the area of text output. Previously, at +best, text was output as paths without taking advantage of any font +support available in the output file format. + +Now, at the minimum text paths will be shared by using type3 fonts +(for PS and PDF---and similarly, defs for SVG). Also, if possible, +type3 and truetype fonts will be embedded in PostScript and PDF +output. There are still some known bugs with this, (for example, +selecting text in a cairo-generated PDF file with an embedded truetype +font does not work). So there will be some more changes in this area +before cairo 1.2, but do try test this feature out as it exists so +far. + +Many thanks to Kristian Høgsberg for the truetype and type1 font +embedding. + +win32 backend +------------- +Performance improvements by preferring GDI over pixman rendering when possible. +Fixes for text rendering. + +xlib backend +------------ +Fix potentially big performance bug by making xlib's create_similar +try harder to create a pixmap of a depth matching that of the screen. + +Bug fixes +--------- +Among various other fixes, the following bugs listed in bugzilla have +been fixed: + + Bug 2488: Patch to fix pixman samping location bug (#2488). + https://bugs.freedesktop.org/show_bug.cgi?id=2488 + + Bug 4196: undef MIN an MAX before defining to avoid duplicate definition + https://bugs.freedesktop.org/show_bug.cgi?id=4196 + + Bug 4723: configure.in: Fix m4 quoting when examining pkg-config version + https://bugs.freedesktop.org/show_bug.cgi?id=4723 + + Bug 4882: Flag Sun's X server has having buggy_repeat. + https://bugs.freedesktop.org/show_bug.cgi?id=4882 + + Bug 5306: test/pdf2png: Add missing include of stdio.h + https://bugs.freedesktop.org/show_bug.cgi?id=5306 + + Bug 7075: Fix make clean to remove cairo.def + https://bugs.freedesktop.org/show_bug.cgi?id=7075 + +(Many thanks to Behdad Esfahbod for helping us track down and fix many +of these.) + +Snapshot 1.1.6 (2006-05-04 Carl Worth ) +========================================================== +This is the third in a series of snapshots working toward the imminent +1.2 release of cairo. For a list of items still needing work on the +cairo 1.2 roadmap, please see: + + https://cairographics.org/ROADMAP + +As can be seen in that list, there are no longer any API additions +left on the roadmap. Instead, there is a feature (PDF type 3 fonts) a +performance optimization (X server gradients) and a list of bug +fixes. This gives us a fair amount of freedom to cut the 1.2 release +at almost any point by deciding to defer remaining bug fixes to +subsequent maintenance releases such as 1.2.2 and 1.2.4. + +Before we will do that, we must first be wiling to commit to all the +new API additions. As a heads-up, there are a couple of potential API +changes being considered. (Note that these are changes to new API +introduced during 1.1 so these will not introduce API +incompatibilities compared to the stable 1.0 series). The changes +being considered are: + + cairo_get_group_target: may acquire x and y offset return + parameters. May also be eliminated in favor of + cairo_get_target assuming its role + + cairo_pdf_surface_set_dpi: + cairo_ps_surface_set_dpi: + cairo_svg_surface_set_dpi: These functions may be removed in favor + of a new cairo_surface_set_fallback_resolution + +Additionally there is the possibility of a slight change in the +semantics of cairo_set_line_width. We believe the current behavior of the sequence: + + cairo_set_line_width; ... change CTM ...; cairo_stroke; + +is buggy. It is currently behaving the same as: + + ... change CTM ...; cairo_set_line_width; cairo_stroke; + +We are considering fixing this bug before 1.2 with the hope that +nobody is already relying on the buggy behavior described here. Do +shout if you suspect you might be in that position. + +The items included in this snapshot (since the 1.1.4 snapshot) are +described below. + +API additions +------------- +The long-awaited group-rendering support is now available with the +following function calls: + + cairo_push_group + cairo_push_group_with_content + cairo_pop_group + cairo_pop_group_to_source + cairo_get_group_target + +This API provides a much more convenient mechanism for doing rendering +to an intermediate surface without the need to manually create a +temporary cairo_surface_t and a temporary cairo_t and clean them up +afterwards. + +Add the following missing get function to complement +cairo_surface_set_device_offset: + + cairo_surface_get_device_offset + +PDF backend (API addition) +-------------------------- +The PDF backend now provides for per-page size changes, (similar to +what the PostScript backend got in the 1.1.4 snapshot). The new API +is: + + cairo_pdf_surface_set_size + +Xlib backend (API additions) +---------------------------- +The following functions have been added to allow the extraction of +Xlib surface: + + cairo_xlib_surface_get_display + cairo_xlib_surface_get_drawable + cairo_xlib_surface_get_screen + cairo_xlib_surface_get_visual + cairo_xlib_surface_get_depth + +XCB backend (experimental) +-------------------------- +Update backend so that it now compiles with the recent XCB 0.9 release. + +Bug fixes and memory leak cleanup +--------------------------------- +Various little things, nothing too significant though. + +Snapshot 1.1.4 (2006-05-03 Carl Worth ) +========================================================== +This is the second in a series of snapshots working toward the +upcoming 1.2 release of cairo. For a list of items still needing work +on the cairo 1.2 roadmap, please see: + + https://cairographics.org/ROADMAP + +The items included in this snapshot (since the 1.1.2 snapshot) are +described below. + +PostScript backend: new printing-oriented API +--------------------------------------------- +We anticipate that with cairo 1.2, toolkits will begin to use cairo +for printing on systems that use PostScript as the spool format. To +support this use case, we have added 4 new function calls that are +specific to the PostScript backend: + + cairo_ps_surface_set_size + cairo_ps_surface_dsc_comment + cairo_ps_surface_dsc_begin_setup + cairo_ps_surface_dsc_begin_page_setup + +These functions allow variation of the page size/orientation from one +page to the next in the PostScript output. They also allow the toolkit +to provide per-document and per-page printer control options in a +device-independent way, (for example, by using PPD options and +emitting them as DSC comments into the PostScript output). This should +allow toolkits to provide very fine-grained control of many options +available in printers, (media size, media type, tray selection, etc.). + +SVG backend: builds by default, version control +----------------------------------------------- +The SVG backend continues to see major improvements. It is expected +that the SVG backend will be a supported backend in the 1.2 +release. This backend will now be built by default if its dependencies +(freetype and libxml2) are met. + +Additionally, the SVG backend now has flexibility with regard to what +version of SVG it targets. It will target SVG 1.1 by default, which +will require image fallbacks for some of the "fancier" cairo +compositing operators. Or with the following new function calls: + + cairo_svg_surface_restrict_to_version + cairo_svg_get_versions + cairo_svg_version_to_string + +it can be made to target SVG 1.2 in which there is native support for +these compositing operators. + +Bug fixes +--------- +At least the following bugs have been fixed since the 1.1.2 snapshot: + +crash at XRenderAddGlyphs +https://bugs.freedesktop.org/show_bug.cgi?id=4705 + +Can't build cairo-1.1.2 on opensolaris due to " void function cannot return value" +https://bugs.freedesktop.org/show_bug.cgi?id=6792 + +Missing out-of-memory check at gfx/cairo/cairo/src/cairo-atsui-font.c:185 +https://bugzilla.mozilla.org/show_bug.cgi?id=336129 + +A couple of memory leaks. + +Snapshot 1.1.2 (2006-04-25 Carl Worth ) +========================================================== +This is the first in a series of snapshots working toward the upcoming +1.2 release of cairo. (Subsequent snapshot will use successive even +numbers for the third digit, 1.1.4, 1.1.6, etc.) This snapshot is +backwards-compatible with the 1.0 series---it makes a few API +additions but does not remove any API. + +PostScript and PDF backends are no longer "experimental" +-------------------------------------------------------- +The major theme of the 1.2 release is improved PostScript and PDF +backends for cairo. Unlike the 1.0 series, in the 1.2 series these +backends will not be marked as experimental and will be enabled by +default. We encourage people to test this snapshot and the PS/PDF +backends in particular as much as possible. + +The PostScript and PDF output is not yet ideal. + + * One major problem with the PostScript output is that image + fallbacks are used more often than strictly necessary, and the + image fallbacks are at a lower resolution than desired, (the + cairo_ps_surface_set_dpi call is ignored). + + * The major drawback of the current PDF backend implementation is + its text support. Every glyph is represented by a filled path in + the PDF file. The causes file sizes to be much larger and + rendering to be much slower than desired. + +It is anticipated that both of these shortcomings will see some +improvements before the final 1.2 release. + +In spite of those shortcomings, we hope that the PS and PDF backends +will yield faithful results for pretty much any cairo operations you +can throw at them. Please let us know if you are getting obviously +"different" results from the PS/PDF backends than from the image or +xlib backends. + +Other new experimental backends +------------------------------- +This snapshot includes three new backends that did not exist in the +1.0 series: + + * beos backend + + * directfb backend + + * svg backend + +These are all currently marked "experimental" and are disabled by +default. But the SVG backend in particular has seen a lot of recent +development and is very close to passing the entire cairo test +suite. It is possible that this backend will become a fully supported +backend by the time of the cairo 1.2 release. + +Public API additions +-------------------- +There have been a few new API functions added to cairo, including: + +New get_type functions for querying sub-types of object: + + cairo_surface_get_type + cairo_pattern_get_type + cairo_font_face_get_type + cairo_scaled_font_get_type + +More convenience in working with cairo_scaled_font_t with new getter +functions: + + cairo_scaled_font_get_font_face + cairo_scaled_font_get_font_matrix + cairo_scaled_font_get_ctm + cairo_scaled_font_get_font_options + +As well as a convenience function for setting a scaled font into a +cairo context: + + cairo_set_scaled_font + +and a function to allow text extents to be queried directly from a +scaled font, (without requiring a cairo_surface_t or a cairo_t): + + cairo_scaled_font_text_extents + +These new scaled font functions were motivated by the needs of the +pango library. + +Finally, a new path-construction function was added which clears the +current point in preparation for a new sub path. This makes cairo_arc +easier to use in some situations: + + cairo_new_sub_path + +Before the 1.2 release is final we do still plan a few more API +additions specifically motivated by the needs of Mozilla/Firefox. + +Optimizations and bug fixes +--------------------------- +Shortly after the 1.0 maintenance series branched off the mainline +there was a major rework of the cairo font internals. This should +provide some good performance benefits, but it's also another area +people should look at closely for potential regressions. + +There has not yet been any widespread, systematic optimization of +cairo, but various performance improvements have been made, (and some +of them are fairly significant). So if some things seem faster than +1.0 then things are good. If there are any performance regressions +compared to 1.0 then there is a real problem and we would like to hear +about that. + +There has been a huge number of bug fixes---too many to mention in +detail. Again, things should be better, and never worse compared to +1.0. Please let us know if your testing shows otherwise. + +Release 1.0.2 (2005-10-03 Carl Worth ) +========================================================= +For each bug number XXXX below, see: + + https://bugs.freedesktop.org/show_bug.cgi?id=XXXX + +for more details. + +General bug fixes +----------------- + * 4408 - Add support for dashing of stroked curves + (Carl Worth) + + * 4409 - Fix dashing so that each dash is capped on both ends + (Carl Worth) + + * 4414 - Prevent SIGILL failures (proper use of -mmmx and -msse flags) + (Sebastien Bacher, Billy Biggs) + + * 4299 - Fix crashes with text display in multi-threaded program + (Alexey Shabalin, Carl Worth) + + * 4401 - Do not use sincos function since it is buggy on some platforms) + (Tim Mooney, Carl Worth) + + * 4245 - Fix several bugs in the test suite exposed by amd64 systems + (Seemant Kulleen, Carl Worth) + + * 4321 - Add missing byteswapping on GetImage/PutImage + (Sjoerd Simons, Owen Taylor) + + * 4220 - Make the check for rectangular trapezoids simpler and more accurate + (Richard Stellingwerff, Owen Taylor) + + * 4260 - Add missing channel-order swapping for antialised fonts + (Barbie LeVile, Owen Taylor) + + * 4283 - Fix compilation failure with aggressive inlining (gcc -O3) + (Marco Manfredini, Owen Taylor) + + * 4208 - Fix some warnings from sparse + (Kjartan Maraas, Billy Biggs) + + * 4269 - Fix to not crash when compiled with -fomit-frame-pointer + (Ronald Wahl, Owen Taylor) + + * 4263 - Improve performance for vertical gradients + (Richard Stellingwerff, Owen Taylor) + + * 4231 + * 4298 - Accommodate gentoo and Mandriva versions in X server vendor string check + (Billy Biggs, Frederic Crozat, Owen Taylor) + +win32-specific fixes +-------------------- + * 4599 - Fix "missing wedges" on some stroked paths (win32) + (Tim Rowley, Jonathan Watt, Bertram Felgenhauer, Carl Worth, Keith Packard) + + * 4612 - Fix disappearing text if first character out of surface (win32) + (Tim Rowley) + + * 4602 - Fix shutdown of cairo from failing intermediate, size-0 bitmaps (win32) + Aka. the "white rectangles" bug from mozilla-svg testing + (Tim Rowley) + + * Various portability improvements for win32 + (Hans Breuer, Owen Taylor, Carl Worth) + + * 4593 - Fix font sizes to match user expectations (win32) + (Tor Lillqvist, Owen Taylor) + + * 3927 - Fix to report metrics of size 0 for glyph-not-available (win32) + (Hans Breuer, Owen Taylor, Tor Lillqvist) + + * Add locking primitives for win32 + (Hans Breuer) + +xlib-specific fixes +------------------- + * Fix crash from size-0 pixmap due to empty clip region (xlib) + (Radek Doulík, Carl Worth) + +Release 1.0.0 (2005-08-24 Carl Worth ) +========================================================= +Experimental backends +--------------------- + * The Glitz, PS, PDF, Quartz, and XCB backends have been declared + experimental, and are not part of the API guarantees that accompany + this release. They are not built by default, even when the required + libraries are available, and must be enabled explicitly with + --enable-ps, --enable-pdf, --enable-quartz or --enable-xcb. + + It is very painful for us to be pushing out a major release without + these backends enabled. There has been a tremendous amount of work + put into each one and all are quite functional to some + extent. However, each also has some limitations. And none of these + backends have been tested to the level of completeness and + correctness that we expect from cairo backends. + + We do encourage people to experiment with these backends and report + success, failure, or means of improving them. + +Operator behavior +----------------- + * Prior to 0.9.0 the SOURCE, CLEAR and a number of other operators + behaved in an inconsistent and buggy fashion and could affect areas + outside the clip mask. In 0.9.0, these six "unbounded" operators + were fixed to consistently clear areas outside the shape but within + the clip mask. This is useful behavior for an operator such as IN, + but not what was expected for SOURCE and CLEAR. So, in this release + the behavior of SOURCE and CLEAR has been changed again. They now + affect areas only within both the source and shape. We can write + the new operators as: + + SOURCE: dest' = (mask IN clip) ? source : dest + CLEAR: dest' = (mask IN clip) ? 0 : dest + +Behavior and API changes +------------------------ + * Setting the filter on a gradient pattern would change the + interpolation between color stops away from the normal linear + interpolation. This dubious behavior has been removed. + + * The CAIRO_CONTENT_VALID() and CAIRO_FORMAT_VALID() macros -- + implementation details that leaked into cairo.h -- have been moved + into an internal header. + + * The cairo_show_text function now advances the current point + according to the total advance values of the string. + +API additions +------------- + * cairo_set_dash can now detect error and can set + CAIRO_STATUS_INVALID_DASH. + +Features +-------- + * When compiled against recent versions of fontconfig and FreeType, + artificial bold fonts can now be turned on from fonts.conf using + the FC_EMBOLDEN fontconfig key. + +Optimization +------------ + * The compositing code from the 'xserver' code tree has now been + completely merged into libpixman. This includes MMX optimization of + common operations. + + * The image transformation code in libpixman has been improved and + now performs significantly faster. + +Bug fixes +--------- + * Several crashes related to corruption in the font caches have been + fixed. + + * All test cases now match pixel-for-pixel on x86 and PPC; this + required fixing bugs in the compositing, stroking, and pattern + rendering code. + + * Negative dash offsets have been fixed to work correctly. + + * The stroking of paths with multiple subpaths has now been fixed to + apply caps to all subpaths rather than just the last one. + + * Many build fixes for better portability on various systems. + + * Lots of other bug fixes, but we're too tired to describe them in + more detail here. + +Release 0.9.2 (2005-08-13 Carl Worth ) +========================================================= +Release numbering +----------------- + * You will notice that this release jumped from 0.9.0 to 0.9.2. We've + decided to use an odd micro version number (eg. 0.9.1) to indicate + in-progress development between releases. As soon as 0.9.2 is + tagged, the version will be incremented in CVS to 0.9.3 where it + will stay until just before 0.9.4 is built, uploaded, and tagged. + + So, even-micro == a released version, odd-micro == something in-between. + +Libpixman dependency dropped +---------------------------- + * As of this release, the dependency on an external libpixman has + been dropped. Instead, the code from libpixman needed for cairo has + been incorporated into the cairo source tree. The motivation for + this change is that while cairo's API is stable and ready to be + maintained after the 1.0 release, libpixman's API is not, so we do + not want to expose it at this time. + + Also, the incorporation of libpixman into cairo also renames all + previously-public libpixman symbols in order to avoid any conflict + with a future release of libpixman + +API additions +------------- + * Macros and functions have been added so that the version of cairo + can be queried at either compile-time or at run-time. The version + is made available as both a human-readable string and as a single + integer: + + CAIRO_VERSION_STRING eg. "0.9.2" + CAIRO_VERSION eg. 000902 + + const char* + cairo_version_string (void); /* eg. "0.9.2" */ + + int + cairo_version (void); /* eg. 000902 */ + + A macro is provided to convert a three-part component version into + the encoded single-integer form: + + CAIRO_VERSION_ENCODE(X,Y,Z) + + For example, the CAIRO_VERSION value of 000902 is obtained as + CAIRO_VERSION_ENCODE(0,9,2). The intent is to make version + comparisons easy, either at compile-time: + + #if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(0,9,2) + ... + #endif + + Or at run-time: + + if (cairo_version() >= CAIRO_VERSION_ENCODE(0,9,2)) { /* ... */ } + +Thread safety +------------- + * This release adds pthread-based locking (when available) to make + the caches used by cairo safe for threaded programs. Some may + remember a failed experiment with this locking between the 0.5.1 + and 0.5.2 snapshots, (where even single-threaded programs that + linked with -lpthread would deadlock). We believe that that problem + has been fixed, so we are looking forward to testing and reports + from users with threaded applications. + +Bug fixes +--------- + * The XCB and Quartz backends failed to compiled in the 0.9.0 release + due to minor syntax errors. These have now been fixed. + + * Various crashes in glitz and pixman due to size 0 glyphs have been + fixed. + +Release 0.9.0 (2005-08-08 Carl Worth ) +========================================================= +Soname change +------------- + * In all prior snapshots, the libtool library versioning was set to + 1:0:0. As this release is intended to mark the beginning of + backwards-compatible releases, the versioning has been incremented + to 2:0:0. You will notice that the numeric extension on the + installed library filename will change similarly. + + This change will also require all cairo-using applications to be + recompiled. We recognize that this may cause some frustration since + this release is backwards-compatible with 0.6.0 and in that sense + "shouldn't" require re-compilation. However, since all historical + snapshots have used the same 1:0:0 version in spite of incompatible + API changes between them, it was essential that the upcoming 1.0 + release series have distinct library versioning. + + All future releases will use the library versioning to properly + indicate compatibility between releases. So, any application + re-compiled now to work with the 0.9.0 will not need to be + recompiled when a compatible 1.0 release of cairo is made in the + future. + +API additions +------------- + * Add new function calls to set/get the current antialiasing mode in + the graphics state: + + cairo_set_antialias + cairo_get_antialias + + This call accepts the same modes recently added for font options + (NONE or GRAY) but affects the rendering of geometry other than + text. The intent of this call is to enable more precise control of + which pixels are affected by each operation, for example to allow + for full-scene antialiasing for seam-free rendering. It is not + expected that non-antialiased rendering will perform better than + anti-aliased rendering. + + * Three new functions were added to provide support for mixed cairo- + and non-cairo drawing to the same surface: + + cairo_surface_mark_dirty + cairo_surface_mark_dirty_rectangle + cairo_surface_flush + + * The return type of the several "reference" functions was change, + (API compatibly), from void to the same type as the argument. The + affected functions are: + + cairo_font_face_reference + cairo_scaled_font_reference + cairo_pattern_reference + cairo_surface_reference + cairo_reference + + This allows a convenient way to assign and reference in a single + statement. + +Semantic changes +---------------- + * The behavior of cairo_set_source with a pattern with a non-identity + matrix was previously not well-defined. The new behavior is as + follows: + + The pattern's transformation matrix will be locked to the + user space in effect at the time of cairo_set_source(). This means + that further modifications of the CTM will not affect the source + pattern. + +cairo-win32 +----------- + * Some portability improvements, (eg. workaround for missing stdint.h). + +cairo-ft +-------- + * Updated to allow compilation with older versions of freetype. + +Bug fixes +--------- + * Fix the unbounded operators to actually produce a correct result, + (previously the results were artificially restricted to the + bounding box of whatever shape was being drawn rather than + extending out infinitely). The fixed operators are: + + CAIRO_OPERATOR_CLEAR + CAIRO_OPERATOR_SOURCE + CAIRO_OPERATOR_OUT + CAIRO_OPERATOR_IN + CAIRO_OPERATOR_DEST_IN + CAIRO_OPERATOR_DEST_ATOP + + * Fix cairo_mask and cairo_mask_surface to transform the mask by the + current transformation matrix (CTM). + + * Fix cairo_set_source to lock the CTM used to transform the pattern. + + * Workaround for X server Render bug involving repeating patterns + with a general transformation matrix. + + * cairo_get_font_face fixed to return a "nil" font face object rather + than NULL on error. + + * cairo_set_font_face fixed to not crash if given a NULL font face, + (which is the documented interface for restoring the default font + face). + + * Fix xlib glyphset caching to not try to free a NULL glyph. + +Snapshot 0.6.0 (2005-07-28 Carl Worth ) +========================================================== +API changes +----------- +* The prototypes of the following functions have changed: + + cairo_xlib_surface_create_with_xrender_format + cairo_xlib_surface_create_for_bitmap + + A Screen* parameter has been added to each. This allows the cairo + xlib backend to work correctly with multi-head X servers. + +* The following function has been modified: + + cairo_scaled_font_create + + to accept a cairo_font_options_t*. See below fore more details. + +* All opaque, reference-counted cairo objects have now been moved to a + standard error-handling scheme. The new objects to receive this + treatment are cairo_font_face_t, cairo_scaled_font_t, and + cairo_surface_t. (Previous snapshots already provided this scheme + for cairo_t, cairo_path_t, and cairo_pattern_t.) + + This changes two functions to have a return type of void rather than + cairo_status_t: + + cairo_scaled_font_extent + cairo_surface_finish + + And significantly, none of the create functions for any of the + objects listed above will return NULL. The pointer returned from any + function will now always be a valid pointer and should always be + passed to the corresponding destroy function when finished + + The simplest strategy for porting code is to switch from: + + object = cairo__create (); + if (object == NULL) + goto BAILOUT; + + /* act on object */ + + cairo__destroy (object); + + to: + + object = cairo__create (); + if (cairo__status (object)) + goto BAILOUT; + + /* act on object */ + + cairo__destroy (object); + + But significantly, it is not required to check for an error status + before the "act on object" portions of the code above. All + operations on an object with an error status are, by definition, + no-ops without side effect. So new code might be written in an + easier-to-read style of: + + object = cairo__create (); + + /* act on object */ + + cairo__destroy (object); + + with cairo__status checks placed only at strategic + locations. For example, passing an error object to another object, + (eg. cairo_set_source with an in-error pattern), will propagate the + error to the subsequent object (eg. the cairo_t). This means that + error checking can often be deferred even beyond the destruction of + a temporary object. + +API additions +------------- +* New functions for checking the status of objects that have been + switched to the common error-handling scheme: + + cairo_font_face_status + cairo_scaled_font_status + cairo_surface_status + +* The _cairo_error function which was added in 0.5.1 has now been made + much more useful. In 0.5.1 only errors on cairo_t objects passed + through _cairo_error. Now, an error on any object should pass + through _cairo_error making it much more reliable as a debugging + mechanism for finding when an error first occurs. + +* Added new font options support with a myriad of functions: + + cairo_font_options_create + cairo_font_options_copy + cairo_font_options_destroy + + cairo_font_options_status + + cairo_font_options_merge + cairo_font_options_equal + cairo_font_options_hash + + cairo_font_options_set_antialias + cairo_font_options_get_antialias + cairo_font_options_set_subpixel_order + cairo_font_options_get_subpixel_order + cairo_font_options_set_hint_style + cairo_font_options_get_hint_style + cairo_font_options_set_hint_metrics + cairo_font_options_get_hint_metrics + + cairo_surface_get_font_options + + cairo_ft_font_options_substitute + + cairo_set_font_options + cairo_get_font_options + + This new font options support allows the application to have much + more fine-grained control over how fonts are rendered. + Significantly, it also allows surface backends to have some + influence over the process. For example, the xlib backend now + queries existing Xft properties to set font option defaults. + +* New function: + + cairo_xlib_surface_set_drawable + + which allows the target drawable for an xlib cairo_surface_t to be + changed to another with the same format, screen, and display. This + is necessary in certain double-buffering techniques. + +New features +------------ +* Sub-pixel text antialiasing is now supported. + +Bug fixes +--------- +* Fixed assertion failure in cairo_surface_create_similar when + application commits an error by passing a cairo_format_t rather than + a cairo_content_t. + +* Avoid division by zero in various places (cairo-ft). + +* Fix infinite loop when using non-default visuals (cairo-xlib). + +* Eliminate segfault in cairo_image_surface_create_from_png_stream. + +* Prevent errant sign-extension of masks on 64-bit architectures + (cairo-xlib and cairo-xcb). + +* Other miscellaneous fixes. + +Snapshot 0.5.2 (2005-07-18 Carl Worth ) +========================================================== +API changes +----------- +* New functions for creating patterns of a single color: + + cairo_pattern_create_rgb + cairo_pattern_create_rgba + +* Change cairo_surface_create_similar to accept a new type of + cairo_content_t rather than cairo_format_t: + + typedef enum _cairo_content { + CAIRO_CONTENT_COLOR = 0x1000, + CAIRO_CONTENT_ALPHA = 0x2000, + CAIRO_CONTENT_COLOR_ALPHA = 0x3000 + } cairo_content_t; + +* Add new CAIRO_FORMAT_VALID and CAIRO_CONTENT_VALID macros. + +* Remove unused status value: + + CAIRO_STATUS_NO_TARGET_SURFACE + +* Add new status values: + + CAIRO_STATUS_INVALID_STATUS + +* Require libpixman >= 0.1.5 (for necessary bug fixes) + +Bug fixes +--------- +* Fix cairo_surface_write_to_png for RGB24 images. + +* Fix broken metrics and rendering for bitmap fonts. Add mostly + useless bitmap glyph transformation. + +* Fix glyph caches to not eject entries that might be immediately + needed, (fixing intermittent crashes when rendering text). + +* Fix all memory leaks found by running "make check-valgrind". + +ATSUI backend changes +--------------------- +* Allow building against < 10.3 SDK. + +* Prevent crash on empty strings. + +Glitz backend changes +--------------------- +* Require glitz >= 0.4.4. + +* Use frame buffer objects instead of pbuffers for accelerated + offscreen drawing. + +* Minor improvement to gradient pattern creation. + +PostScript backend fixes +------------------------ +* Rewrite of the PS backend to generate more interesting output that + the old big-image implementation. + +Win32 backend fixes +------------------- +* Implement glyph path support. + +* Fix swap of blue and green values in the fill_rectangles path. + +Xlib backend fixes +------------------ +* Add optimization to use XCopyArea rather than XRenderComposite when + transforming only with an integer translation, and using SOURCE + operator or OVER with a source pattern without alpha. + +Snapshot 0.5.1 (2005-06-20 Carl Worth ) +========================================================== +API changes +----------- +* Removed cairo_status_string(cairo_t*) and add + cairo_status_to_string(cairo_status_t) in its place. Code using + cairo_status_string can be ported forward as follows: + + cairo_status (cr); + -> + cairo_status_to_string (cairo_status (cr)); + +* Removed the BAD_NESTING restriction which means that two different + cairo_t objects can now interleave drawing to the same + cairo_surface_t without causing an error. + +* The following functions which previously had a return type of + cairo_status_t now have a return type of void: + + cairo_pattern_add_color_stop_rgba + cairo_pattern_set_matrix + cairo_pattern_get_matrix + cairo_pattern_set_extend + cairo_pattern_set_filter + + See discussion of cairo_pattern_status below for more details. + +API additions +------------- +* Improved error handling: + + cairo_status_t + cairo_pattern_status (cairo_pattern_t *pattern); + + This snapshot expands the status-based error handling scheme from + cairo_t to cairo_path_t and cairo_pattern_t. It also expands the + scheme so that object-creating functions, (cairo_create, + cairo_pattern_create_*, cairo_copy_path_*), are now guaranteed to + not return NULL. Instead, in the case of out-of-memory these + functions will return a static object with + status==CAIRO_STATUS_NO_MEMORY. The status can be checked with the + functions cairo_status and cairo_pattern_status, or by direct + inspection of the new status field in cairo_path_t. + + Please note that some objects, including cairo_surface_t and all of + the font-related objects have not been converted to this + error-handling scheme. + +* In addition to the above changes, a new private function has been added: + + _cairo_error + + This function can be used to set a breakpoint in a debugger to make + it easier to find programming error in cairo-using code. (Currently, + _cairo_error is called when any error is detected within a cairo_t + context, but is not called for non-cairo_t errors such as for + cairo_path_t and cairo_pattern_t). + +* Fixed cairo_path_data_t so that its enum is visible to C++ code, (as + cairo_path_data_type_t). + +Performance improvements +------------------------ +* Made a minor performance improvement for clipping, (restrict clip + surface to the new intersected bounds). + +* Optimize rendering of a solid source pattern with a pixel-aligned + rectangular path to use backend clipping rather than rasterization + and backend compositing. + +* Optimize cairo_paint_with_alpha to defer to cairo_paint when alpha + is 1.0. + +Bug fixes +--------- +* Fixed memory leak in cairo_copy_path. + +* A build fix for non-srcdir builds. + +PDF backend fixes +----------------- +* New support for path-based clipping. + +* Fix for text rotated to angles other than multiples of π/2. + +Win32 backend fixes +------------------- +* Fix for text extents. + +Xlib backend +------------ +* Implemented a complex workaround for X server bug[*] related to + Render-based compositing with untransformed, repeating source + pictures. The workaround uses core Xlib when possible for + performance, (ie. with CAIRO_OPERATOR_SOURCE or CAIRO_OPERATOR_OVER + with an opaque source surface), and falls back to the pixman + image-based compositing otherwise. + + [*] https://bugs.freedesktop.org/show_bug.cgi?id=3566 + +* Various bug fixes, particularly in the fallback paths. + +Snapshot 0.5.0 (2005-05-17 Carl Worth ) +========================================================== +This is a pretty big, and fairly significant snapshot. It represents +between 2 and 3 months of solid work from a lot of people on improving +the API as much as possible. I'd like to express my appreciation and +congratulations to everyone who has worked on the big API Shakeup, +(whether in email battles over names, or fixing my silly bugs). + +This snapshot will require some effort on the part of users, since +there are a _lot_ of API changes (ie. no cairo program ever written is +safe --- they're all broken now in at least one way). But, in spite of +that, we do encourage everyone to move their code to this snapshot as +soon as possible. And we're doing everything we can think of to make +the transition as smooth as possible. + +The idea behind 0.5 is that we've tried to make every good API change +we could want now, and get them all done with. That is, between now +and the 1.0 release of cairo, we expect very few new API changes, +(though some will certainly sneak in). We will have some significant +additions, but the pain of moving code from cairo 0.4 to cairo 0.5 +should be a one time experience, and things should be much smoother as +we continue to move toward cairo 1.0. + +And with so many changes coming out for the first time in this 0.5 +release, we really do need a lot of people trying this out to make +sure the ideas are solid before we freeze the API in preparation for +the 1.0 release. + +OK, enough introduction. Here is a (not-quite-complete) description of +the API removals, changes and additions in this snapshot, (compared to +0.4.0) + +API removals +============ +The following public functions have been removed: + +- cairo_set_target_* + + This is a big change. See the description of cairo_create in + the API changes section for how to deal with this. + +- cairo_set_alpha + + Alpha blending hasn't gone away; there's just a much more + unified rendering model now. Almost all uses of + cairo_set_alpha will be trivially replaced with + cairo_set_source_rgba and a few others will be replaced just + as easily with cairo_paint_with_alpha. + +- cairo_show_surface + + Another useful function that we realized was muddling up the + rendering model. The replacement is quite easy: + cairo_set_source_surface and cairo_paint. + +- cairo_matrix_create +- cairo_matrix_destroy +- cairo_matrix_copy +- cairo_matrix_get_affine + + These functions supported an opaque cairo_matrix_t. We now + have an exposed cairo_matrix_t structure, so these can be + dropped. + +- cairo_surface_set_repeat +- cairo_surface_set_matrix +- cairo_surface_set_filter + + These properties don't belong on surfaces. If you were using + them, you'll just want to instead use + cairo_pattern_create_for_surface and then set these properties + on the pattern. + +- cairo_copy + + This was a confusing function and hopefully nobody will miss + it. But if you really don't find cairo_save/restore adequate, + let us know and we have another idea for a potential + replacement. + +And while we're on the subject of removals, we carefully tightened up +the cairo header files so they no longer gratuitously include header +files that are not strictly necessary, (stdio.h, stdint.h, pixman.h, +Xrender.h, etc. and their dependencies). This may lead to some +surprising errors, so keep your eyes open for that. + +API changes +=========== +Here are some of the API changes that have occurred: + +~ cairo_create(void) -> cairo_create(cairo_surface_t *) + + This is the big change that breaks every program. The ability + to re-target a cairo_t was not particularly useful, but it did + introduce a lot of muddy semantic questions. To eliminate + that, cairo_create now requires its target surface to be + passed in at creation time. This isn't too hard to cope with + as the typical first operation after cairo_create was often + cairo_set_target_foo. So the order of those two swap and the + application instead has cairo_foo_surface_create, then + cairo_create. + +~ cairo_current_* -> cairo_get_* + + We had a strange mixture of cairo_get and cairo_current + functions. They've all been standardized on cairo_get, (though + note one is cairo_get_current_point). + +~ CAIRO_OPERATOR_SRC -> CAIRO_OPERATOR_SOURCE +~ CAIRO_OPERATOR_OVER_REVERSE -> CAIRO_OPERATOR_DEST_OVER + + Many of the cairo_operator_t symbolic values were renamed to + reduce the amount of abbreviation. The confusing "OP_REVERSE" + naming was also changed to use "DEST_OP" instead which is + easier to read and has wider acceptance in other + libraries/languages. + +~ cairo_set_pattern -> cairo_set_source +~ cairo_set_rgb_color -> cairo_set_source_rgb + + All of the various functions that changed the source + color/pattern were unified to use cairo_set_source names to + make the relation more clear. + +~ cairo_transform_point -> cairo_user_to_device +~ cairo_transform_distance -> cairo_user_to_device_distance +~ cairo_inverse_transform_point -> cairo_device_to_user +~ cairo_inverse_transform_distance -> cairo_device_to_user_distance + + These names just seemed a lot more clear. + +~ cairo_init_clip -> cairo_reset_clip +~ cairo_concat_matrix -> cairo_transform + + More abbreviation elimination + +~ cairo_current_path -> cairo_copy_path +~ cairo_current_path_flat -> cairo_copy_path_flat + + The former mechanism for examining the current path was a + function that required 3 or 4 callbacks. This was more + complexity than warranted in most situations. The new + cairo_copy_path function copies the current path into an + exposed data structure, and the documentation provides a + convenient idiom for navigating the path data. + +API additions +------------- ++ cairo_paint + + A generalized version of the painting operators cairo_stroke + and cairo_fill. The cairo_paint call applies the source paint + everywhere within the current clip region. Very useful for + clearing a surface to a solid color, or painting an image, + (see cairo_set_source_surface). + ++ cairo_paint_with_alpha + + Like cairo_paint but applying some alpha to the source, + (making the source paint translucent, eg. to blend an image on + top of another). + ++ cairo_mask + + A more generalized version of cairo_paint_with_alpha which + allows a pattern to specify the amount of translucence at each + point rather than using a constant value everywhere. + ++ cairo_mask_surface + + A convenience function on cairo_mask for when the mask pattern + is already contained within a surface. + ++ cairo_surface_set_user_data ++ cairo_surface_get_user_data ++ cairo_font_face_set_user_data ++ cairo_font_face_get_user_data + + Associate arbitrary data with a surface or font face for later + retrieval. Get notified when a surface or font face object is + destroyed. + ++ cairo_surface_finish + + Allows the user to instruct cairo to finish all of its + operations for a given surface. This provides a safe point for + doing things such as flushing and closing files that the + surface may have had open for writing. + ++ cairo_fill_preserve ++ cairo_stroke_preserve ++ cairo_clip_preserve + + One interesting change in cairo is that the path is no longer + part of the graphics state managed by + cairo_save/restore. This allows functions to construct paths + without interfering with the graphics state. But it prevents + the traditional idiom for fill-and-stroke: + + cairo_save; cairo_fill; cairo_restore; cairo_stroke + + Instead we know have alternate versions cairo cairo_fill, + cairo_stroke, and cairo_clip that preserve the current path + rather than consuming it. So the idiom now becomes simply: + + cairo_fill_preserve; cairo_stroke + ++ cairo_surface_write_to_png ++ cairo_surface_write_to_png_stream + + In place of a single PNG backend, now a surface created + through any backend (except PDF currently) can be written out + to a PNG image. + ++ cairo_image_surface_create_from_png ++ cairo_image_surface_create_from_png_stream + + And its just as easy to load a PNG image into a surface as well. + ++ cairo_append_path + + With the new, exposed path data structure, it's now possible + to append bulk path data to the current path, (rather than + issuing a long sequence of cairo_move_to/line_to/curve_to + function calls). + +Xlib and XCB backends +--------------------- + +Any cairo_format_t and Colormap arguments have been dropped from +cairo_xlib_surface_create. There are also two new +cairo_xlib|xcb_surface_create functions: + + cairo_xlib|xcb_surface_create_for_bitmap + (Particular for creating A1 surfaces) + cairo_xlib|xcb_surface_create_with_xrender_format + (For any other surface types, not described by a Visual*) + +All of these surface create functions now accept width and height. In +addition, there are new cairo_xlib|xcb_surface_set_size functions +which must be called each time a window that is underlying a surface +changes size. + +Print backends (PS and PDF) +--------------------------- +The old FILE* based interfaces have been eliminated. In their place we +have two different functions. One accepts a simple const char +*filename. The other is a more general function which accepts a +callback write function and a void* closure. This should allow the +flexibility needed to hook up with various stream object in many +languages. + +In addition, when specifying the surface size during construction, the +units are now device-space units (ie. points) rather than inches. This +provides consistency with all the other surface types and also makes +it much easier to reason about the size of the surface when drawing to +it with the default identity matrix. + +Finally, the DPI parameters, which are only needed to control the +quality of fallbacks, have been made optional. Nothing is required +during surface_create (300 DPI is assumed) and +cairo_ps|pdf_surface_set_dpi can be used to set alternate values if +needed. + +Font system +----------- +Owen very graciously listened to feedback after the big font rework he +had done for 0.4, and came up with way to improve it even more. In 0.4 +there was a cairo_font_t that was always pre-scaled. Now, there is an +unscaled cairo_font_face_t which is easier to construct, (eg. no +scaling matrix required) and work with, (it can be scaled and +transformed after being set on the graphics state). And the font size +manipulation functions are much easier. You can set an explicit size +and read/modify/write the font matrix with: + + cairo_set_font_size + cairo_get_font_matrix + cairo_set_font_matrix + +(Previously you could only multiply in a scale factor or a matrix.) A +pleasant side effect is that we can (and do) now have a default font +size that is reasonable, as opposed to the old default height of one +device-space unit which was useless until scaled. + +Of course, the old pre-scaled font had allowed some performance +benefits when getting many metrics for a font. Those benefits are +still made available through the new cairo_scaled_font_t. And a +cairo_font_face_t can be "promoted" to a cairo_scaled_font_t by +suppling a font_matrix and the desired CTM. + +Quartz backend +-------------- +Tim Rowley put in the work to bring the Quartz backend back after it +had been disabled in the 0.4.0 snapshot. He was not able to bring back +the function that allows one to create a cairo_font_t from an ATSUI +style: + + cairo_font_t * + cairo_atsui_font_create (ATSUStyle style); + +because he didn't have a test case for it. If you care about this +function, please provide a fairly minimal test and we'll try to bring +it back in an upcoming snapshot. + +Snapshot 0.4.0 (2005-03-08 Carl Worth ) +========================================================== +New documentation +----------------- +Owen Taylor has converted cairo's documentation system to gtk-doc and +has begun some long-needed work on the documentation, which can now be +viewed online here: + + https://cairographics.org/manual/ + +New backend: win32 +------------------ +This is the first snapshot to include a functional win32 backend, +(thanks to Owen Taylor). The interface is as follows: + + #include + + void + cairo_set_target_win32 (cairo_t *cr, + HDC hdc); + + cairo_surface_t * + cairo_win32_surface_create (HDC hdc); + + cairo_font_t * + cairo_win32_font_create_for_logfontw (LOGFONTW *logfont, + cairo_matrix_t *scale); + + cairo_status_t + cairo_win32_font_select_font (cairo_font_t *font, + HDC hdc); + + void + cairo_win32_font_done_font (cairo_font_t *font); + + double + cairo_win32_font_get_scale_factor (cairo_font_t *font); + +And see also the documentation at: + +https://cairographics.org/manual/cairo-Microsoft-Windows-Backend.html + +Disabled backend: quartz +------------------------ +Unfortunately, the quartz backend code is currently out of date with +respect to some recent backend interface changes. So, the quartz +backend is disabled in this snapshot. + +If the quartz backend is brought up-to-date before the next snapshot, +we would be glad to make a 0.4.1 snapshot that re-enables it, (we do +not expect many more big backend interface changes). + +API Changes +----------- +The font system has been revamped, (as Owen Taylor's work with +integrating pango and cairo gave us the first serious usage of the +non-toy font API). + +One fundamental, user-visible change is that the cairo_font_t object +now represents a font that is scaled to a particular device +resolution. Further changes are described below. + + cairo.h + ------- + Removed cairo_font_set_transform and cairo_font_current_transform. + + Added cairo_font_extents and cairo_font_glyph_extents. See + documentation for details: + + https://cairographics.org/manual/cairo-cairo-t.html#cairo-font-extents + + cairo-ft.h + ---------- + The cairo_ft_font API changed considerably. Please see the + documentation for details: + + https://cairographics.org/manual/cairo-FreeType-Fonts.html + +Performance +----------- +Make the fast-path clipping (pixel-aligned rectangles) faster. + +Add optimization for applying a constant alpha to a pattern. + +Optimize gradients that are horizontal or vertical in device space. + +Xlib: When RENDER is not available, use image surfaces for +intermediate surfaces rather than xlib surfaces. + +Backend-specific changes +------------------------ + Glitz + ----- + Major update to glitz backend. The output quality should now be just + as good as the image and xlib backends. + + Track changes to glitz 0.4.0. + + PDF + --- + Various improvements to produce more conformant output. + +Internals +--------- +David Reveman contributed a large re-work of the cairo_pattern_t +implementation, providing cleaner code and more optimization +opportunities. + + Backend interface changes + ------------------------- + Rework backend interface to accept patterns, not surfaces for source + and mask. + + Remove set_matrix, set_filter, and set_repeat functions. + + More sophisticated backend interface for image fallbacks, + ({acquire,release}_{source,dest}_image() and clone_similar). + +Bug fixes +--------- +Only install header files for backends that have been compiled. + +Fixed some rounding errors leading to incorrectly placed glyphs. + +Many other minor fixes. + +Snapshot 0.3.0 (2005-01-21 Carl Worth ) +========================================================== +Major API changes +----------------- +1) The public header files will no longer be directly installed into + the system include directory. They will now be installed in a + subdirectory named "cairo", (eg. in /usr/include/cairo rather than + in /usr/include). + + As always, the easiest way for applications to discover the + location of the header file is to let pkg-config generate the + necessary -I CFLAGS and -L/-l LDFLAGS. For example: + + cc `pkg-config --cflags --libs cairo` -o foo foo.c + + IMPORTANT: Users with old versions of cairo installed will need to + manually remove cairo.h and cairo-features.h from the + system include directories in order to prevent the old + headers from being used in preference to the new ones. + +2) The backend-specific portions of the old monolithic cairo.h have + been split out into individual public header files. The new files + are: + + cairo-atsui.h + cairo-ft.h + cairo-glitz.h + cairo-pdf.h + cairo-png.h + cairo-ps.h + cairo-quartz.h + cairo-xcb.h + cairo-xlib.h + + Applications will need to be modified to explicitly include the new + header files where appropriate. + +3) There are two new graphics backends in this snapshot, a PDF + backend, and a Quartz backend. There is also one new font backend, + ATSUI. + +PDF backend +----------- +Kristian Høgsberg has contributed a new backend to allow cairo-based +applications to generate PDF output. The interface for creating a PDF +surface is similar to that of the PS backend, as can be seen in +cairo-pdf.h: + + void + cairo_set_target_pdf (cairo_t *cr, + FILE *file, + double width_inches, + double height_inches, + double x_pixels_per_inch, + double y_pixels_per_inch); + + cairo_surface_t * + cairo_pdf_surface_create (FILE *file, + double width_inches, + double height_inches, + double x_pixels_per_inch, + double y_pixels_per_inch); + +Once a PDF surface has been created, applications can draw to it as +any other cairo surface. + +This code is still a bit rough around the edges, and does not yet +support clipping, surface patterns, or transparent gradients. Text +only works with TrueType fonts at this point and only black text is +supported. Also, the size of the generated PDF files is currently +quite big. + +Kristian is still actively developing this backend, so watch this +space for future progress. + +Quartz backend +-------------- +Calum Robinson has contributed a new backend to allow cairo +applications to target native Mac OS X windows through the Quartz +API. Geoff Norton integrated this backend into the current +configure-based build system, while Calum also provided Xcode build +support in the separate "macosx" module available in CVS. + +The new interface, available in cairo-quartz.h, is as follows: + + void + cairo_set_target_quartz_context (cairo_t *cr, + CGContextRef context, + int width, + int height); + + cairo_surface_t * + cairo_quartz_surface_create (CGContextRef context, + int width, + int height); + +There is an example program available in CVS in cairo-demo/quartz. It +is a port of Keith Packard's fdclock program originally written for +the xlib backend. A screenshot of this program running on Mac OS X is +available here: + + https://cairographics.org/~cworth/images/fdclock-quartz.png + +ATSUI font backend +------------------ +This new font backend complements the Quartz backend by allowing +applications to use native font selection on Mac OS X. The interface +is a single new function: + + cairo_font_t * + cairo_atsui_font_create (ATSUStyle style); + +Minor API changes +----------------- +Prototype for non-existent function "cairo_ft_font_destroy" removed. + +Now depends on libpixman 0.1.2 or newer, (0.1.3 is being released +concurrently and has some useful performance improvements). + +Default paint color is now opaque black, (was opaque white). Default +background color is transparent (as before). + +Renamed "struct cairo" to "struct _cairo" to free up the word "cairo" +from the C++ identifier name space. + +Functions returning multiple return values through provided pointers, +(cairo_matrix_get_affine, cairo_current_point, and +cairo_current_color_rgb), will now accept NULL for values the user +wants to ignore. + +CAIRO_HAS_FREETYPE_FONT has now been renamed to CAIRO_HAS_FT_FONT. + +Performance improvements +------------------------ +Alexander Larsson provided some fantastic performance improvements +yielding a 10000% performance improvement in his application, (when +also including his performance work in libpixman-0.1.3). These include + + * Fixed handling of cache misses. + + * Creating intermediate clip surfaces at the minimal size required. + + * Eliminating roundtrips when creating intermediate Xlib surfaces. + +Implementation +-------------- +Major re-work of font metrics system by Keith Packard. Font metrics +should now be much more reliable. + +Glitz backend +------------- +Updated for glitz-0.3.0. +Bug fixes in reference counting. + +Test suite +---------- +New tests for cache crashing, rotating text, improper filling of +complex polygons, and leaky rasterization. + +Bug fixes +--------- +Fixed assertion failure when selecting the same font multiple times in +sequence. + +Fixed reference counting so cache_destroy functions work. + +Remove unintended copyright statement from files generated with +PostScript backend. + +Fixed to eliminate new warnings from gcc 3.4 and gcc 4. + +Snapshot 0.2.0 (2004-10-27 Carl Worth ) +=========================================================== +New license: LGPL/MPL +--------------------- +The most significant news with this release is that the license of +cairo has changed. It is now dual-licensed under the LGPL and the +MPL. For details see the COPYING file as well as COPYING-LGPL-2.1 and +COPYING-MPL-1.1. + +I express my thanks to everyone involved in the license change process +for their patience and support! + +New font and glyph internals +---------------------------- +Graydon Hoare has put a tremendous amount of work into new internals +for handling fonts and glyphs, including caches where appropriate. +This work has no impact on the user-level API, but should result in +great performance improvements for applications using text. + +New test suite +-------------- +This snapshot of cairo includes a (small) test suite in +cairo/test. The tests can be run with "make check". The test suite was +designed to make it very easy to add new tests, and we hope to see +many contributions here. As you find bugs, please try adding a minimal +test case to the suite, and submit it with the bug report to the +cairo@cairographics.org mailing list. This will make it much easier +for us to track progress in fixing bugs. + +New name for glitz backend +-------------------------- +The gl backend has now been renamed to the glitz backend. This means +that the following names have changed: + + CAIRO_HAS_GL_SURFACE -> CAIRO_HAS_GLITZ_SURFACE + cairo_set_target_gl -> cairo_set_target_glitz + cairo_gl_surface_create -> cairo_glitz_surface_create + +This change obviously breaks backwards compatibility for applications +using the old gl backend. + +Up-to-date with latest glitz snapshots +-------------------------------------- +This snapshot of cairo is now up to date with the latest glitz +snapshot, (currently 0.2.3). We know that the latest cairo and glitz +snapshots have been incompatible for a very long time. We've finally +fixed that now and we're determined to not let that happen again. + +Revert some tessellation regression bugs +---------------------------------------- +People that have been seeing some tessellation bugs, (eg. leaked +fills), in the CVS version of cairo may have better luck with this +release. A change since the last snapshot was identified to trigger +some of these bugs and was reverted before making the snapshot. The +behavior should be the same as the previous (0.1.23) snapshot. + +Miscellaneous changes +--------------------- +Changed CAIRO_FILTER_DEFAULT to CAIRO_FILTER_BEST to make gradients +easier. + +Track XCB API change regarding iterators. + +Various bug fixes +----------------- +Fix calculation of required number of vertices for pen. + +Fix to avoid zero-dimensioned pixmaps. + +Fix broken sort of pen vertices. + +Fix bug when cairo_show_text called with a NULL string. + +Fix clipping bugs. + +Fix bug in computing image length with XCB. + +Fix infinite loop bug in cairo_arc. + +Fix memory management interactions with libpixman. + +Snapshot 0.1.23 (2004-05-11 Carl Worth ) +======================================================== +Fixes for gcc 3.4 +----------------- +Fix prototype mismatches so that cairo can be built by gcc 3.4. + +Updates to track glitz +---------------------- +Various fixes to support the latest glitz snapshot (0.1.2). + +Gradient updates +---------------- +Radial gradients now support both inner and outer circles. +Transformed linear gradients are now properly handled. +Fixes for extend type reflect. + +Glitz updates +------------- +Converted shading routines to use fixed point values and introduced a +shading operator structure for more efficient shading calculations. +Support compositing with mask surface when mask is solid or +multi-texturing is available. + +PNG backend cleanups +-------------------- +Fix output to properly compensate for pre-multiplied alpha format in cairo. +Add support for A8 and A1 image formats. + +Bug fixes +--------- +Avoid crash or infinite loop on null strings and degeneratively short +splines. + +New? bugs in cairo_clip +----------------------- +There are some fairly serious bugs in cairo_clip. It is sometimes +causing an incorrect result. And even when it does work, it is +sometimes so slow as to be unusable. Some of these bugs may not be +new, (indeed cairo_clip has only ever had a braindead-slow +implementation), but I think they're worth mentioning here. + +Snapshot 0.1.22 (2004-04-16 Carl Worth ) +======================================================== +Cairo was updated to track the changes in libpixman, and now depends +on libpixman version 0.1.1. + +Snapshot 0.1.21 (2004-04-09 David Reveman ) +============================================================= +New OpenGL backend +------------------ +The OpenGL backend provides hardware accelerated output for +X11 and OS X. The significant new functions are: + + cairo_set_target_gl + cairo_gl_surface_create + +Automatic detection of available backends +----------------------------------------- +The configure script now automatically detect what backends are +available, (use ./configure --disable-`backend' to prevent +compilation of specific backends). + +Snapshot 0.1.20 (2004-04-06 Carl Worth ) +======================================================== +New pattern API +--------------- +David Reveman has contributed a new pattern API which enable linear +and radial gradient patterns in addition to the original surface-based +patterns. The significant new top-level functions are: + + cairo_pattern_create_linear + cairo_pattern_create_radial + cairo_pattern_create_for_surface + cairo_pattern_add_color_stop + cairo_set_pattern + +Any code using the old cairo_set_pattern, (which accepted a +cairo_surface_t rather than a cairo_pattern_t), will need to be +updated. + +Update to XCB backend +--------------------- +The XCB backend is now enabled by default, (use ./configure +--disable-xcb to turn it off). + +Faster clipping +--------------- +Graydon Hoare has added optimizations that make cairo_clip much faster +when the path is a pixel-aligned, rectangular region. + +Bug fixes. + +Snapshot 0.1.19 (2004-02-24 Carl Worth ) +======================================================== +New PNG backend +--------------- +Olivier Andrieu contributed a new PNG backend. It builds on the +existing image backend to make it easy to render "directly" to a +.png file. The user never needs to deal with the actual image +buffer. The significant new functions are: + + cairo_set_target_png + cairo_png_surface_create + +The PNG backend is not enabled by default so that by default there is +not a new dependency on libpng. Use ./configure --enable-png to enable +this backend. + +Snapshot 0.1.18 (2004-02-17 Carl Worth ) +======================================================== +Path query functionality +------------------------ +It's now possible to query the current path. The two new functions +are: + + cairo_current_path + cairo_current_path_flat + +Each function accepts a number of callback functions that will be +called for each element in the path (move_to, line_to, curve_to, +close_path). The cairo_current_path_flat function does not accept a +curve_to callback. Instead, all curved portions of the path will be +converted to line segments, (within the current tolerance value). This +can be handy for doing things like text-on-path without having to +manually interpolate Bézier splines. + +New XCB backend +--------------- +Jamey Sharp has contributed a second X backend that uses the new, lean +XCB library rather than Xlib. It cannot currently be compiled at the +same time as the Xlib backend. See ./configure --enable-xcb. + +Build fixes for cygwin. + +Bug fixes. + +Snapshot 0.1.17 (2003-12-16 Carl Worth ) +======================================================== + +Better text support +------------------- +This snapshot provides much better text support by implementing the +following four functions: + + cairo_text_extents + cairo_glyph_extents + cairo_text_path + cairo_glyph_path + +The text/glyph_extents functions can be used to determine the bounding +box (and advance) for text as if drawn by show_text/glyphs. + +The text/glyph_path objects functions place text shapes on the current +path, where they can be subsequently manipulated. For example, +following these functions with cairo_stroke allows outline text to be +drawn. Calling cairo_clip allows clipping to a text-shaped region. + +Combined dependencies +--------------------- +The cairo core now depends only on the libpixman library. This single +library replaces the three previous libraries libic, libpixregion, and +slim. Thanks to Dave Beckett for all of +the heavy lifting with this renaming effort. + +Conditional compilation of backends +----------------------------------- +Cairo now allows optional backends to be disabled at compile time. The +following options may now be passed to the configure script: + + --disable-xlib + --disable-ps + +Note that the first option is a change from the old --without-x option +which will no longer have any effect. + +OS X supported - several byte-order issues resolved +--------------------------------------------------- +Cairo has now been successfully compiled under OS X. Testing revealed +that there were some byte-order problems in the PostScript backend and +the PNG generation in the demos. These have now been resolved. + +2003-10 +======= +Graydon Hoare implemented the first real text +support using FreeType/fontconfig, (previous versions of cairo used +Xft and could only draw text when using an X backend). + +2003-09 +======= +Graydon Hoare added the first real support for +running cairo with a non-render-aware X server. + +Jamey Sharp virtualized the backend font and +surface interfaces in September, 2003. + +2003-06 +======= +Xr is renamed cairo to avoid confusion since it no longer had a strict +dependence on X. + +2003-05 +======= +A new image surface backend is added to Xr. Keith Packard + wrote the image compositing code in libic that is +used for the image_surface backend. This code was originally written +as the software fallback for the render extension within the X +server. + +2002-06 +======= +Carl Worth wrote the first lines of Xr, after Keith +Packard proposed the plan for a stateful drawing +library in C providing a PostScript-like rendering model. + + LocalWords: mutex BeOS extraordinaire distro's URL lcd bool tarball diff --git a/local/recipes/libs/cairo/source/README.md b/local/recipes/libs/cairo/source/README.md new file mode 100644 index 0000000000..2bd26068b0 --- /dev/null +++ b/local/recipes/libs/cairo/source/README.md @@ -0,0 +1,176 @@ +# Cairo: Multi-platform 2D graphics library + + + +What is cairo +------------- + +Cairo is a 2D graphics library with support for multiple output +devices. Currently supported output targets include the X Window +System (via both Xlib and XCB), quartz, win32, and image buffers, +as well as PDF, PostScript, and SVG file output. + +Cairo is designed to produce consistent output on all output media +while taking advantage of display hardware acceleration when available +(for example, through the X Render Extension). + +The cairo API provides operations similar to the drawing operators of +PostScript and PDF. Operations in cairo include stroking and filling +cubic Bézier splines, transforming and compositing translucent images, +and antialiased text rendering. All drawing operations can be +transformed by any affine transformation (scale, rotation, shear, +etc.). + +Cairo has been designed to let you draw anything you want in a modern +2D graphical user interface. At the same time, the cairo API has been +designed to be as fun and easy to learn as possible. If you're not +having fun while programming with cairo, then we have failed +somewhere---let us know and we'll try to fix it next time around. + +Cairo is free software and is available to be redistributed and/or +modified under the terms of either the GNU Lesser General Public +License (LGPL) version 2.1 or the Mozilla Public License (MPL) version +1.1. + +Where to get more information about cairo +----------------------------------------- + +The primary source of information about cairo is its website: + +- + +The latest versions of cairo can always be found at: + +- + +Documentation on using cairo and frequently-asked questions: + +- +- + +Mailing lists for contacting cairo users and developers: + +- + +Roadmap and unscheduled things to do, (please feel free to help out): + +- https://cairographics.org/roadmap +- https://cairographics.org/todo + +Dependencies +------------ + +The set of libraries needed to compile cairo depends on which backends are +enabled when cairo is configured. So look at the list below to determine +which dependencies are needed for the backends of interest. + +For the surface backends, we have both "supported" and "experimental" +backends. Further, the supported backends can be divided into the "standard" +backends which can be easily built on any platform, and the "platform" +backends which depend on some underlying platform-specific system, (such as +the X Window System or some other window system). + +As an example, for a standard Linux build similar to what's shipped by your +distro, (with image, png, pdf, PostScript, svg, and xlib surface backends, +and the freetype font backend), the following sample commands will install +necessary dependencies: + +- Debian (and similar): + - `apt-get build-dep cairo` + +- Fedora (and similar): + - `dnf builddep cairo` + +Technically you probably don't need pixman from the distribution since if +you're manually compiling Cairo you probably want an updated pixman as well. +However, if you follow the default settings and install pixman to +/usr/local, your Cairo build should properly use it in preference to the +system pixman. + + +### Supported, "standard" surface backends + +#### image backend (required) + +- [pixman](https://cairographics.org/releases) >= 0.30.0 + +#### PNG support (preferred) + +- [libpng](http://www.libpng.org/pub/png/libpng.html) + +#### PDF backend + +- [zlib](http://www.gzip.org/zlib) + +#### PostScript backend + +- [zlib](http://www.gzip.org/zlib) + +#### SVG backend + +- none + +### Supported, "platform" surface backends + +#### Xlib backend + +- [X11](https://freedesktop.org/Software/xlibs) + +#### xlib-xrender backend + +- [Xrender](https://freedesktop.org/Software/xlibs) >= 0.6 + +#### Quartz backend + +- macOS >= 10.4 with Xcode >= 2.5 + +#### Windows backend + +- Microsoft Windows Vista or newer. + +#### XCB backend + +- [XCB](https://xcb.freedesktop.org) + +### Font backends (required) + +#### freetype font backend + +- [freetype](https://freetype.org) >= 2.1.9 +- [fontconfig](https://www.freedesktop.org/wiki/Software/fontconfig/) + +#### Quartz-font backend + +- MacOS X >= 10.4 with Xcode >= 2.5 + +#### Windows GDI font backend + +- Microsoft Windows 2000 or newer + +#### Windows DirectWrite font backend + +- Microsoft Windows 7 or newer + +Compiling +--------- + +See the [`INSTALL`](./INSTALL) document for build instructions. + +Licensing +--------- + +Cairo is released under the terms of either the GNU Lesser General Public +License version 2.1, or the terms of the Mozilla Public License version 1.1. + +See the [`COPYING`](./COPYING) document for more information. + +History +------- + +Cairo was originally developed by Carl Worth and Keith +Packard . Many thanks are due to Lyle Ramshaw without +whose patient help our ignorance would be much more apparent. + +Since the original development, many more people have contributed to cairo. +See the [`AUTHORS`](./AUTHORS) document for as complete a list as we've been +able to compile so far. diff --git a/local/recipes/libs/cairo/source/boilerplate/.gitignore b/local/recipes/libs/cairo/source/boilerplate/.gitignore new file mode 100644 index 0000000000..90b333133a --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/.gitignore @@ -0,0 +1,25 @@ +TAGS +tags +Makefile +Makefile.in +Makefile.am.features +#Makefile.win32.features +*.lo +*.la +*.exe +*.manifest +*.o +*.gcda +*.gcno +*.obj +*.ilk +*.suo +*.lib +*.pdb +*.trs +*~ +.*.sw? +check-link +cairo-boilerplate-constructors.c +cairo-boilerplate-constructors +make-cairo-boilerplate-constructors diff --git a/local/recipes/libs/cairo/source/boilerplate/README b/local/recipes/libs/cairo/source/boilerplate/README new file mode 100644 index 0000000000..2a27c415cf --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/README @@ -0,0 +1,14 @@ +This directory provides code that is common to both of cairo's tests +suites: + + * The test suite for correctness in test/ + * The test suite for performance in perf/ + +We call it boilerplate as it consists primarily of the boilerplate +code necessary for initializing a backend in order to create a surface +for that backend. + +The code here just might be useful for someone looking to get started +writing cairo code to use a particular backend, (but there are no +promises that the boilerplate code found here for any particular +backend is exemplary). diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-getopt.c b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-getopt.c new file mode 100644 index 0000000000..53b150c29c --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-getopt.c @@ -0,0 +1,247 @@ +/***************************************************************************** +* getopt.c - competent and free getopt library. +* $Header: /cvsroot/freegetopt/freegetopt/getopt.c,v 1.2 2003/10/26 03:10:20 vindaci Exp $ +* +* Copyright (c)2002-2003 Mark K. Kim +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* +* * Neither the original author of this software nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF +* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH +* DAMAGE. +*/ +#include +#include +#include +#include "cairo-boilerplate-getopt.h" + + +char* optarg = NULL; +int optind = 0; +int opterr = 1; +int optopt = '?'; + + +static char** prev_argv = NULL; /* Keep a copy of argv and argc to */ +static int prev_argc = 0; /* tell if getopt params change */ +static int argv_index = 0; /* Option we're checking */ +static int argv_index2 = 0; /* Option argument we're checking */ +static int opt_offset = 0; /* Index into compounded "-option" */ +static int dashdash = 0; /* True if "--" option reached */ +static int nonopt = 0; /* How many nonopts we've found */ + +static void increment_index(void) +{ + /* Move onto the next option */ + if(argv_index < argv_index2) + { + while(prev_argv[++argv_index] && prev_argv[argv_index][0] != '-' + && argv_index < argv_index2+1); + } + else argv_index++; + opt_offset = 1; +} + + +/* +* Permutes argv[] so that the argument currently being processed is moved +* to the end. +*/ +static int permute_argv_once(void) +{ + /* Movability check */ + if(argv_index + nonopt >= prev_argc) return 1; + /* Move the current option to the end, bring the others to front */ + else + { + char* tmp = prev_argv[argv_index]; + + /* Move the data */ + memmove(&prev_argv[argv_index], &prev_argv[argv_index+1], + sizeof(char**) * (prev_argc - argv_index - 1)); + prev_argv[prev_argc - 1] = tmp; + + nonopt++; + return 0; + } +} + + +int _cairo_getopt(int argc, char** argv, const char* optstr) +{ + int c = 0; + + /* If we have new argv, reinitialize */ + if(prev_argv != argv || prev_argc != argc) + { + /* Initialize variables */ + prev_argv = argv; + prev_argc = argc; + argv_index = 1; + argv_index2 = 1; + opt_offset = 1; + dashdash = 0; + nonopt = 0; + } + + /* Jump point in case we want to ignore the current argv_index */ + getopt_top: + + /* Misc. initializations */ + optarg = NULL; + + /* Dash-dash check */ + if(argv[argv_index] && !strcmp(argv[argv_index], "--")) + { + dashdash = 1; + increment_index(); + } + + /* If we're at the end of argv, that's it. */ + if(argv[argv_index] == NULL) + { + c = -1; + } + /* Are we looking at a string? Single dash is also a string */ + else if(dashdash || argv[argv_index][0] != '-' || !strcmp(argv[argv_index], "-")) + { + /* If we want a string... */ + if(optstr[0] == '-') + { + c = 1; + optarg = argv[argv_index]; + increment_index(); + } + /* If we really don't want it (we're in POSIX mode), we're done */ + else if(optstr[0] == '+' || getenv("POSIXLY_CORRECT")) + { + c = -1; + + /* Everything else is a non-opt argument */ + nonopt = argc - argv_index; + } + /* If we mildly don't want it, then move it back */ + else + { + if(!permute_argv_once()) goto getopt_top; + else c = -1; + } + } + /* Otherwise we're looking at an option */ + else + { + char* opt_ptr = NULL; + + /* Grab the option */ + c = argv[argv_index][opt_offset++]; + + /* Is the option in the optstr? */ + if(optstr[0] == '-') opt_ptr = strchr(optstr+1, c); + else opt_ptr = strchr(optstr, c); + /* Invalid argument */ + if(!opt_ptr) + { + if(opterr) + { + fprintf(stderr, "%s: invalid option -- %c\n", argv[0], c); + } + + optopt = c; + c = '?'; + + /* Move onto the next option */ + increment_index(); + } + /* Option takes argument */ + else if(opt_ptr[1] == ':') + { + /* ie, -oARGUMENT, -xxxoARGUMENT, etc. */ + if(argv[argv_index][opt_offset] != '\0') + { + optarg = &argv[argv_index][opt_offset]; + increment_index(); + } + /* ie, -o ARGUMENT (only if it's a required argument) */ + else if(opt_ptr[2] != ':') + { + /* One of those "you're not expected to understand this" moment */ + if(argv_index2 < argv_index) argv_index2 = argv_index; + while(argv[++argv_index2] && argv[argv_index2][0] == '-'); + optarg = argv[argv_index2]; + + /* Don't cross into the non-option argument list */ + if(argv_index2 + nonopt >= prev_argc) optarg = NULL; + + /* Move onto the next option */ + increment_index(); + } + else + { + /* Move onto the next option */ + increment_index(); + } + + /* In case we got no argument for an option with required argument */ + if(optarg == NULL && opt_ptr[2] != ':') + { + optopt = c; + c = '?'; + + if(opterr) + { + fprintf(stderr,"%s: option requires an argument -- %c\n", + argv[0], optopt); + } + } + } + /* Option does not take argument */ + else + { + /* Next argv_index */ + if(argv[argv_index][opt_offset] == '\0') + { + increment_index(); + } + } + } + + /* Calculate optind */ + if(c == -1) + { + optind = argc - nonopt; + } + else + { + optind = argv_index; + } + + return c; +} + + +/* vim:ts=3 +*/ diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-getopt.h b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-getopt.h new file mode 100644 index 0000000000..74bce14c75 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-getopt.h @@ -0,0 +1,63 @@ +/***************************************************************************** +* getopt.h - competent and free getopt library. +* $Header: /cvsroot/freegetopt/freegetopt/getopt.h,v 1.2 2003/10/26 03:10:20 vindaci Exp $ +* +* Copyright (c)2002-2003 Mark K. Kim +* All rights reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in +* the documentation and/or other materials provided with the +* distribution. +* +* * Neither the original author of this software nor the names of its +* contributors may be used to endorse or promote products derived +* from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF +* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH +* DAMAGE. +*/ +#ifndef GETOPT_H_ +#define GETOPT_H_ + + +#ifdef __cplusplus +extern "C" { +#endif + + +extern char* optarg; +extern int optind; +extern int opterr; +extern int optopt; + +int _cairo_getopt(int argc, char** argv, const char* optstr); + + +#ifdef __cplusplus +} +#endif + + +#endif /* GETOPT_H_ */ + + +/* vim:ts=3 +*/ diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-pdf.c b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-pdf.c new file mode 100644 index 0000000000..4669040b93 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-pdf.c @@ -0,0 +1,288 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2004,2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-boilerplate-private.h" + +#if CAIRO_CAN_TEST_PDF_SURFACE + +#include +#include +#include + +#if HAVE_SIGNAL_H +#include +#endif + +#if HAVE_SYS_WAIT_H +#include +#endif + +#if ! CAIRO_HAS_RECORDING_SURFACE +#define CAIRO_SURFACE_TYPE_RECORDING CAIRO_INTERNAL_SURFACE_TYPE_RECORDING +#endif + +static const cairo_user_data_key_t pdf_closure_key; + +typedef struct _pdf_target_closure +{ + char *filename; + int width; + int height; + cairo_surface_t *target; +} pdf_target_closure_t; + +static cairo_surface_t * +_cairo_boilerplate_pdf_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + pdf_target_closure_t *ptc; + cairo_surface_t *surface; + cairo_status_t status; + + /* Sanitize back to a real cairo_content_t value. */ + if (content == CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED) + content = CAIRO_CONTENT_COLOR_ALPHA; + + *closure = ptc = xmalloc (sizeof (pdf_target_closure_t)); + + ptc->width = ceil (width); + ptc->height = ceil (height); + + xasprintf (&ptc->filename, "%s.out.pdf", name); + xunlink (ptc->filename); + + surface = cairo_pdf_surface_create (ptc->filename, width, height); + if (cairo_surface_status (surface)) + goto CLEANUP_FILENAME; + + cairo_pdf_surface_set_metadata (surface, CAIRO_PDF_METADATA_CREATE_DATE, NULL); + cairo_surface_set_fallback_resolution (surface, 72., 72.); + + if (content == CAIRO_CONTENT_COLOR) { + ptc->target = surface; + surface = cairo_surface_create_similar (ptc->target, + CAIRO_CONTENT_COLOR, + ptc->width, ptc->height); + if (cairo_surface_status (surface)) + goto CLEANUP_TARGET; + } else { + ptc->target = NULL; + } + + status = cairo_surface_set_user_data (surface, &pdf_closure_key, ptc, NULL); + if (status == CAIRO_STATUS_SUCCESS) + return surface; + + cairo_surface_destroy (surface); + surface = cairo_boilerplate_surface_create_in_error (status); + + CLEANUP_TARGET: + cairo_surface_destroy (ptc->target); + CLEANUP_FILENAME: + free (ptc->filename); + free (ptc); + return surface; +} + +static cairo_status_t +_cairo_boilerplate_pdf_finish_surface (cairo_surface_t *surface) +{ + pdf_target_closure_t *ptc = cairo_surface_get_user_data (surface, + &pdf_closure_key); + cairo_status_t status; + + if (ptc->target) { + /* Both surface and ptc->target were originally created at the + * same dimensions. We want a 1:1 copy here, so we first clear any + * device offset and scale on surface. + * + * In a more realistic use case of device offsets, the target of + * this copying would be of a different size than the source, and + * the offset would be desirable during the copy operation. */ + double x_offset, y_offset; + double x_scale, y_scale; + cairo_surface_get_device_offset (surface, &x_offset, &y_offset); + cairo_surface_get_device_scale (surface, &x_scale, &y_scale); + cairo_surface_set_device_offset (surface, 0, 0); + cairo_surface_set_device_scale (surface, 1, 1); + cairo_t *cr; + cr = cairo_create (ptc->target); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_paint (cr); + cairo_show_page (cr); + status = cairo_status (cr); + cairo_destroy (cr); + cairo_surface_set_device_offset (surface, x_offset, y_offset); + cairo_surface_set_device_scale (surface, x_scale, y_scale); + + if (status) + return status; + + cairo_surface_finish (surface); + status = cairo_surface_status (surface); + if (status) + return status; + + surface = ptc->target; + } + + cairo_surface_finish (surface); + status = cairo_surface_status (surface); + if (status) + return status; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_boilerplate_pdf_surface_write_to_png (cairo_surface_t *surface, + const char *filename) +{ + pdf_target_closure_t *ptc = cairo_surface_get_user_data (surface, &pdf_closure_key); + char command[4096]; + int exitstatus; + + sprintf (command, "./pdf2png %s %s 1", + ptc->filename, filename); + + exitstatus = system (command); +#if _XOPEN_SOURCE && HAVE_SIGNAL_H + if (WIFSIGNALED (exitstatus)) + raise (WTERMSIG (exitstatus)); +#endif + if (exitstatus) + return CAIRO_STATUS_WRITE_ERROR; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_surface_t * +_cairo_boilerplate_pdf_convert_to_image (cairo_surface_t *surface, + int page) +{ + pdf_target_closure_t *ptc = cairo_surface_get_user_data (surface, + &pdf_closure_key); + + return cairo_boilerplate_convert_to_image (ptc->filename, page+1); +} + +static cairo_surface_t * +_cairo_boilerplate_pdf_get_image_surface (cairo_surface_t *surface, + int page, + int width, + int height) +{ + cairo_surface_t *image; + double x_offset, y_offset; + double x_scale, y_scale; + + image = _cairo_boilerplate_pdf_convert_to_image (surface, page); + cairo_surface_get_device_offset (surface, &x_offset, &y_offset); + cairo_surface_get_device_scale (surface, &x_scale, &y_scale); + cairo_surface_set_device_offset (image, x_offset, y_offset); + cairo_surface_set_device_scale (image, x_scale, y_scale); + surface = _cairo_boilerplate_get_image_surface (image, 0, width, height); + cairo_surface_destroy (image); + + return surface; +} + +static void +_cairo_boilerplate_pdf_cleanup (void *closure) +{ + pdf_target_closure_t *ptc = closure; + if (ptc->target) { + cairo_surface_finish (ptc->target); + cairo_surface_destroy (ptc->target); + } + free (ptc->filename); + free (ptc); +} + +static void +_cairo_boilerplate_pdf_force_fallbacks (cairo_surface_t *abstract_surface, + double x_pixels_per_inch, + double y_pixels_per_inch) +{ + pdf_target_closure_t *ptc = cairo_surface_get_user_data (abstract_surface, + &pdf_closure_key); + + cairo_paginated_surface_t *paginated; + cairo_pdf_surface_t *surface; + + if (ptc->target) + abstract_surface = ptc->target; + + paginated = (cairo_paginated_surface_t*) abstract_surface; + surface = (cairo_pdf_surface_t*) paginated->target; + surface->force_fallbacks = TRUE; + cairo_surface_set_fallback_resolution (&paginated->base, + x_pixels_per_inch, + y_pixels_per_inch); +} + +static const cairo_boilerplate_target_t targets[] = { + { + "pdf", "pdf", ".pdf", NULL, + CAIRO_SURFACE_TYPE_PDF, + CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED, 0, + "cairo_pdf_surface_create", + _cairo_boilerplate_pdf_create_surface, + cairo_surface_create_similar, + _cairo_boilerplate_pdf_force_fallbacks, + _cairo_boilerplate_pdf_finish_surface, + _cairo_boilerplate_pdf_get_image_surface, + _cairo_boilerplate_pdf_surface_write_to_png, + _cairo_boilerplate_pdf_cleanup, + NULL, NULL, FALSE, TRUE, TRUE + }, + { + "pdf", "pdf", ".pdf", NULL, + CAIRO_SURFACE_TYPE_RECORDING, CAIRO_CONTENT_COLOR, 0, + "cairo_pdf_surface_create", + _cairo_boilerplate_pdf_create_surface, + cairo_surface_create_similar, + _cairo_boilerplate_pdf_force_fallbacks, + _cairo_boilerplate_pdf_finish_surface, + _cairo_boilerplate_pdf_get_image_surface, + _cairo_boilerplate_pdf_surface_write_to_png, + _cairo_boilerplate_pdf_cleanup, + NULL, NULL, FALSE, TRUE, TRUE + }, +}; +CAIRO_BOILERPLATE (pdf, targets) + +#else + +CAIRO_NO_BOILERPLATE (pdf) + +#endif diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-private.h b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-private.h new file mode 100644 index 0000000000..d16a645b2a --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-private.h @@ -0,0 +1,53 @@ +/* + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#ifndef _CAIRO_BOILERPLATE_PRIVATE_H_ +#define _CAIRO_BOILERPLATE_PRIVATE_H_ + +#include "cairo-boilerplate.h" + +CAIRO_BEGIN_DECLS + +void +_cairo_boilerplate_register_all (void); + +void +_cairo_boilerplate_register_backend (const cairo_boilerplate_target_t *targets, + unsigned int count); + +#define CAIRO_BOILERPLATE(name__, targets__) \ +void _register_##name__ (void); \ +void _register_##name__ (void) { \ + _cairo_boilerplate_register_backend (targets__, \ + ARRAY_LENGTH(targets__)); \ +} + +#define CAIRO_NO_BOILERPLATE(name__) \ +void _register_##name__ (void); \ +void _register_##name__ (void) { } + +CAIRO_END_DECLS + +#endif /* _CAIRO_BOILERPLATE_PRIVATE_H_ */ diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-ps.c b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-ps.c new file mode 100644 index 0000000000..73546046e7 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-ps.c @@ -0,0 +1,388 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2004,2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-boilerplate-private.h" + +#if CAIRO_CAN_TEST_PS_SURFACE + +#include + +#include +#include + +#if HAVE_SIGNAL_H +#include +#endif + +#if HAVE_SYS_WAIT_H +#include +#endif + +#if ! CAIRO_HAS_RECORDING_SURFACE +#define CAIRO_SURFACE_TYPE_RECORDING CAIRO_INTERNAL_SURFACE_TYPE_RECORDING +#endif + +static const cairo_user_data_key_t ps_closure_key; + +typedef struct _ps_target_closure { + char *filename; + int width; + int height; + cairo_surface_t *target; + cairo_ps_level_t level; +} ps_target_closure_t; + +static cairo_status_t +_cairo_boilerplate_ps_surface_set_creation_date (cairo_surface_t *abstract_surface, + time_t date) +{ + cairo_paginated_surface_t *paginated = (cairo_paginated_surface_t*) abstract_surface; + cairo_ps_surface_t *surface; + + if (cairo_surface_get_type (abstract_surface) != CAIRO_SURFACE_TYPE_PS) + return CAIRO_STATUS_SURFACE_TYPE_MISMATCH; + + surface = (cairo_ps_surface_t*) paginated->target; + + surface->has_creation_date = TRUE; + surface->creation_date = date; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_surface_t * +_cairo_boilerplate_ps_create_surface (const char *name, + cairo_content_t content, + cairo_ps_level_t level, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + ps_target_closure_t *ptc; + cairo_surface_t *surface; + cairo_status_t status; + + /* Sanitize back to a real cairo_content_t value. */ + if (content == CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED) + content = CAIRO_CONTENT_COLOR_ALPHA; + + *closure = ptc = xmalloc (sizeof (ps_target_closure_t)); + + xasprintf (&ptc->filename, "%s.out.ps", name); + xunlink (ptc->filename); + + ptc->level = level; + ptc->width = ceil (width); + ptc->height = ceil (height); + + surface = cairo_ps_surface_create (ptc->filename, width, height); + if (cairo_surface_status (surface)) + goto CLEANUP_FILENAME; + + cairo_ps_surface_restrict_to_level (surface, level); + _cairo_boilerplate_ps_surface_set_creation_date (surface, 0); + cairo_surface_set_fallback_resolution (surface, 72., 72.); + + if (content == CAIRO_CONTENT_COLOR) { + ptc->target = surface; + surface = cairo_surface_create_similar (ptc->target, + CAIRO_CONTENT_COLOR, + ptc->width, ptc->height); + if (cairo_surface_status (surface)) + goto CLEANUP_TARGET; + } else { + ptc->target = NULL; + } + + status = cairo_surface_set_user_data (surface, &ps_closure_key, ptc, NULL); + if (status == CAIRO_STATUS_SUCCESS) + return surface; + + cairo_surface_destroy (surface); + surface = cairo_boilerplate_surface_create_in_error (status); + + CLEANUP_TARGET: + cairo_surface_destroy (ptc->target); + CLEANUP_FILENAME: + free (ptc->filename); + free (ptc); + return surface; +} + +static cairo_surface_t * +_cairo_boilerplate_ps2_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + return _cairo_boilerplate_ps_create_surface (name, content, + CAIRO_PS_LEVEL_2, + width, height, + max_width, max_height, + mode, + closure); +} + +static cairo_surface_t * +_cairo_boilerplate_ps3_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + return _cairo_boilerplate_ps_create_surface (name, content, + CAIRO_PS_LEVEL_3, + width, height, + max_width, max_height, + mode, + closure); +} + +static cairo_status_t +_cairo_boilerplate_ps_finish_surface (cairo_surface_t *surface) +{ + ps_target_closure_t *ptc = cairo_surface_get_user_data (surface, + &ps_closure_key); + cairo_status_t status; + + if (ptc->target) { + /* Both surface and ptc->target were originally created at the + * same dimensions. We want a 1:1 copy here, so we first clear any + * device offset and scale on surface. + * + * In a more realistic use case of device offsets, the target of + * this copying would be of a different size than the source, and + * the offset would be desirable during the copy operation. */ + double x_offset, y_offset; + double x_scale, y_scale; + cairo_surface_get_device_offset (surface, &x_offset, &y_offset); + cairo_surface_get_device_scale (surface, &x_scale, &y_scale); + cairo_surface_set_device_offset (surface, 0, 0); + cairo_surface_set_device_scale (surface, 1, 1); + cairo_t *cr; + cr = cairo_create (ptc->target); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_paint (cr); + cairo_show_page (cr); + status = cairo_status (cr); + cairo_destroy (cr); + cairo_surface_set_device_offset (surface, x_offset, y_offset); + cairo_surface_set_device_scale (surface, x_scale, y_scale); + + if (status) + return status; + + cairo_surface_finish (surface); + status = cairo_surface_status (surface); + if (status) + return status; + + surface = ptc->target; + } + + cairo_surface_finish (surface); + return cairo_surface_status (surface); +} + +static cairo_status_t +_cairo_boilerplate_ps_surface_write_to_png (cairo_surface_t *surface, + const char *filename) +{ + ps_target_closure_t *ptc = cairo_surface_get_user_data (surface, + &ps_closure_key); + char command[4096]; + int exitstatus; + + sprintf (command, "gs -q -r72 -g%dx%d -dSAFER -dBATCH -dNOPAUSE -sDEVICE=pngalpha -sOutputFile=%s %s", + ptc->width, ptc->height, filename, + ptc->filename); + exitstatus = system (command); +#if _XOPEN_SOURCE && HAVE_SIGNAL_H + if (WIFSIGNALED (exitstatus)) + raise (WTERMSIG (exitstatus)); +#endif + if (exitstatus) + return CAIRO_STATUS_WRITE_ERROR; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_surface_t * +_cairo_boilerplate_ps_get_image_surface (cairo_surface_t *surface, + int page, + int width, + int height) +{ + ps_target_closure_t *ptc = cairo_surface_get_user_data (surface, + &ps_closure_key); + double x_offset, y_offset; + double x_scale, y_scale; + char *filename; + cairo_status_t status; + + if (page == 0) + xasprintf (&filename, "%s.png", ptc->filename); + else + xasprintf (&filename, "%s-%%05d.png", ptc->filename); + status = _cairo_boilerplate_ps_surface_write_to_png (surface, filename); + if (status) + return cairo_boilerplate_surface_create_in_error (status); + + if (page != 0) { + free (filename); + xasprintf (&filename, "%s-%05d.png", ptc->filename, page); + } + cairo_surface_t *converted = cairo_boilerplate_get_image_surface_from_png (filename, + ptc->width, + ptc->height, + ptc->target == NULL); + + remove (filename); + free (filename); + + cairo_surface_t *image = cairo_image_surface_create(ptc->target ? CAIRO_FORMAT_RGB24 : CAIRO_FORMAT_ARGB32, + width, + height); + cairo_surface_get_device_offset (surface, &x_offset, &y_offset); + cairo_surface_get_device_scale (surface, &x_scale, &y_scale); + cairo_surface_set_device_offset (converted, x_offset, y_offset); + cairo_surface_set_device_scale (converted, x_scale, y_scale); + cairo_t *cr = cairo_create (image); + cairo_set_source_surface (cr, converted, 0, 0); + cairo_paint (cr); + cairo_destroy (cr); + cairo_surface_destroy (converted); + + return image; +} + +static void +_cairo_boilerplate_ps_cleanup (void *closure) +{ + ps_target_closure_t *ptc = closure; + if (ptc->target) { + cairo_surface_finish (ptc->target); + cairo_surface_destroy (ptc->target); + } + free (ptc->filename); + free (ptc); +} + +static void +_cairo_boilerplate_ps_force_fallbacks (cairo_surface_t *abstract_surface, + double x_pixels_per_inch, + double y_pixels_per_inch) +{ + ps_target_closure_t *ptc = cairo_surface_get_user_data (abstract_surface, + &ps_closure_key); + + cairo_paginated_surface_t *paginated; + cairo_ps_surface_t *surface; + + if (ptc->target) + abstract_surface = ptc->target; + + paginated = (cairo_paginated_surface_t*) abstract_surface; + surface = (cairo_ps_surface_t*) paginated->target; + surface->force_fallbacks = TRUE; + cairo_surface_set_fallback_resolution (&paginated->base, + x_pixels_per_inch, + y_pixels_per_inch); +} + +static const cairo_boilerplate_target_t targets[] = { + { + "ps2", "ps", ".ps", NULL, + CAIRO_SURFACE_TYPE_PS, + CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED, 0, + "cairo_ps_surface_create", + _cairo_boilerplate_ps2_create_surface, + cairo_surface_create_similar, + _cairo_boilerplate_ps_force_fallbacks, + _cairo_boilerplate_ps_finish_surface, + _cairo_boilerplate_ps_get_image_surface, + _cairo_boilerplate_ps_surface_write_to_png, + _cairo_boilerplate_ps_cleanup, + NULL, NULL, FALSE, TRUE, TRUE + }, + { + "ps2", "ps", ".ps", NULL, + CAIRO_SURFACE_TYPE_RECORDING, CAIRO_CONTENT_COLOR, 0, + "cairo_ps_surface_create", + _cairo_boilerplate_ps2_create_surface, + cairo_surface_create_similar, + _cairo_boilerplate_ps_force_fallbacks, + _cairo_boilerplate_ps_finish_surface, + _cairo_boilerplate_ps_get_image_surface, + _cairo_boilerplate_ps_surface_write_to_png, + _cairo_boilerplate_ps_cleanup, + NULL, NULL, FALSE, TRUE, TRUE + }, + { + "ps3", "ps", ".ps", NULL, + CAIRO_SURFACE_TYPE_PS, + CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED, 0, + "cairo_ps_surface_create", + _cairo_boilerplate_ps3_create_surface, + cairo_surface_create_similar, + _cairo_boilerplate_ps_force_fallbacks, + _cairo_boilerplate_ps_finish_surface, + _cairo_boilerplate_ps_get_image_surface, + _cairo_boilerplate_ps_surface_write_to_png, + _cairo_boilerplate_ps_cleanup, + NULL, NULL, FALSE, TRUE, TRUE + }, + { + "ps3", "ps", ".ps", NULL, + CAIRO_SURFACE_TYPE_RECORDING, CAIRO_CONTENT_COLOR, 0, + "cairo_ps_surface_create", + _cairo_boilerplate_ps3_create_surface, + cairo_surface_create_similar, + _cairo_boilerplate_ps_force_fallbacks, + _cairo_boilerplate_ps_finish_surface, + _cairo_boilerplate_ps_get_image_surface, + _cairo_boilerplate_ps_surface_write_to_png, + _cairo_boilerplate_ps_cleanup, + NULL, NULL, FALSE, TRUE, TRUE + }, +}; +CAIRO_BOILERPLATE (ps, targets) + +#else + +CAIRO_NO_BOILERPLATE (ps) + +#endif diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-quartz.c b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-quartz.c new file mode 100644 index 0000000000..dd2452c0a7 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-quartz.c @@ -0,0 +1,152 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2004,2007 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-boilerplate-private.h" + +#include + +#include + +#ifndef RTLD_DEFAULT +#define RTLD_DEFAULT ((void *) 0) +#endif + +/* + * macOS Private functions + */ +typedef enum { + kCGContextTypeUnknown, + kCGContextTypePDF, + kCGContextTypePostScript, + kCGContextTypeWindow, + kCGContextTypeBitmap, + kCGContextTypeGL, + kCGContextTypeDisplayList, + kCGContextTypeKSeparation, + kCGContextTypeIOSurface, + kCGContextTypeCount +} CGContextType; + + +static unsigned int (*CGContextGetTypePtr) (CGContextRef) = NULL; +static void +quartz_ensure_symbols (void) +{ + static cairo_bool_t symbol_lookup_done = FALSE; + if (!symbol_lookup_done) { + CGContextGetTypePtr = dlsym (RTLD_DEFAULT, "CGContextGetType"); + symbol_lookup_done = TRUE; + } +} + +static cairo_surface_t * +_cairo_boilerplate_quartz_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + cairo_format_t format; + + format = cairo_boilerplate_format_from_content (content); + + *closure = NULL; + + return cairo_quartz_surface_create (format, width, height); +} + +static bool +cg_context_is_bitmap (CGContextRef context) +{ + quartz_ensure_symbols (); + + if (likely (CGContextGetTypePtr)) { + return CGContextGetTypePtr (context) == kCGContextTypeBitmap; + } + + return CGBitmapContextGetBitsPerPixel (context) != 0; +} + +static cairo_status_t +_cairo_boilerplate_quartz_surface_to_png (cairo_surface_t *surface, + const char *dest) +{ + CGContextRef context = cairo_quartz_surface_get_cg_context (surface); + if (!context || !cg_context_is_bitmap (context)) { + return CAIRO_STATUS_SURFACE_TYPE_MISMATCH; + } + + CGImageRef image = CGBitmapContextCreateImage (context); + CFStringRef png_utti = CFSTR("public.png"); + CFStringRef path; + CFURLRef url; + + CGImageDestinationRef image_dest; + + path = CFStringCreateWithCString (NULL, dest, kCFStringEncodingUTF8); + url = CFURLCreateWithFileSystemPath (NULL, path, kCFURLPOSIXPathStyle, FALSE); + image_dest = CGImageDestinationCreateWithURL (url, png_utti, 1, NULL); + + CGImageDestinationAddImage (image_dest, image, NULL); + CGImageDestinationFinalize (image_dest); + + CFRelease (url); + CFRelease (path); + + CGImageRelease (image); + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_boilerplate_target_t targets[] = { + { + "quartz", "quartz", NULL, NULL, + CAIRO_SURFACE_TYPE_QUARTZ, CAIRO_CONTENT_COLOR_ALPHA, 0, + "cairo_quartz_surface_create", + _cairo_boilerplate_quartz_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + _cairo_boilerplate_quartz_surface_to_png, + NULL, NULL, NULL, + TRUE, FALSE, FALSE + }, + { + "quartz", "quartz", NULL, NULL, + CAIRO_SURFACE_TYPE_QUARTZ, CAIRO_CONTENT_COLOR, 0, + "cairo_quartz_surface_create", + _cairo_boilerplate_quartz_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + _cairo_boilerplate_quartz_surface_to_png, + NULL, NULL, NULL, + FALSE, FALSE, FALSE + }, +}; +CAIRO_BOILERPLATE (quartz, targets) diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-scaled-font.h b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-scaled-font.h new file mode 100644 index 0000000000..a7ba2fede9 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-scaled-font.h @@ -0,0 +1,34 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Behdad Esfahbod + */ + +#ifndef _CAIRO_BOILERPLATE_SCALED_FONT_H_ +#define _CAIRO_BOILERPLATE_SCALED_FONT_H_ + +void +cairo_boilerplate_scaled_font_set_max_glyphs_cached (cairo_scaled_font_t *scaled_font, + int max_glyphs); + +#endif diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-script.c b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-script.c new file mode 100644 index 0000000000..da8ae3bbd5 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-script.c @@ -0,0 +1,141 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-boilerplate-private.h" + +#include "cairo-script.h" + +static cairo_user_data_key_t script_closure_key; + +typedef struct _script_target_closure { + char *filename; + double width; + double height; +} script_target_closure_t; + +static cairo_surface_t * +_cairo_boilerplate_script_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + script_target_closure_t *ptc; + cairo_device_t *ctx; + cairo_surface_t *surface; + cairo_status_t status; + + *closure = ptc = xmalloc (sizeof (script_target_closure_t)); + + ptc->width = width; + ptc->height = height; + + xasprintf (&ptc->filename, "%s.out.cs", name); + xunlink (ptc->filename); + + ctx = cairo_script_create (ptc->filename); + surface = cairo_script_surface_create (ctx, content, width, height); + cairo_device_destroy (ctx); + + status = cairo_surface_set_user_data (surface, + &script_closure_key, ptc, NULL); + if (status == CAIRO_STATUS_SUCCESS) + return surface; + + cairo_surface_destroy (surface); + surface = cairo_boilerplate_surface_create_in_error (status); + + free (ptc->filename); + free (ptc); + return surface; +} + +static cairo_status_t +_cairo_boilerplate_script_finish_surface (cairo_surface_t *surface) +{ + cairo_surface_finish (surface); + return cairo_surface_status (surface); +} + +static cairo_status_t +_cairo_boilerplate_script_surface_write_to_png (cairo_surface_t *surface, + const char *filename) +{ + return CAIRO_STATUS_WRITE_ERROR; +} + +static cairo_surface_t * +_cairo_boilerplate_script_convert_to_image (cairo_surface_t *surface, + int page) +{ + script_target_closure_t *ptc = cairo_surface_get_user_data (surface, + &script_closure_key); + return cairo_boilerplate_convert_to_image (ptc->filename, page); +} + +static cairo_surface_t * +_cairo_boilerplate_script_get_image_surface (cairo_surface_t *surface, + int page, + int width, + int height) +{ + cairo_surface_t *image; + + image = _cairo_boilerplate_script_convert_to_image (surface, page); + cairo_surface_set_device_offset (image, + cairo_image_surface_get_width (image) - width, + cairo_image_surface_get_height (image) - height); + surface = _cairo_boilerplate_get_image_surface (image, 0, width, height); + cairo_surface_destroy (image); + + return surface; +} + +static void +_cairo_boilerplate_script_cleanup (void *closure) +{ + script_target_closure_t *ptc = closure; + free (ptc->filename); + free (ptc); +} + +static const cairo_boilerplate_target_t target[] = {{ + "script", "script", ".cs", NULL, + CAIRO_SURFACE_TYPE_SCRIPT, CAIRO_CONTENT_COLOR_ALPHA, 0, + "cairo_script_surface_create", + _cairo_boilerplate_script_create_surface, + cairo_surface_create_similar, + NULL, + _cairo_boilerplate_script_finish_surface, + _cairo_boilerplate_script_get_image_surface, + _cairo_boilerplate_script_surface_write_to_png, + _cairo_boilerplate_script_cleanup, + NULL, NULL, FALSE, FALSE, FALSE +}}; +CAIRO_BOILERPLATE (script, target) diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-svg.c b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-svg.c new file mode 100644 index 0000000000..0c9a3833ee --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-svg.c @@ -0,0 +1,305 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2004,2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-boilerplate-private.h" + +#if CAIRO_CAN_TEST_SVG_SURFACE + +#include +#include +#include + +#if HAVE_SIGNAL_H +#include +#include +#endif + +#if HAVE_SYS_WAIT_H +#include +#endif + +#if ! CAIRO_HAS_RECORDING_SURFACE +#define CAIRO_SURFACE_TYPE_RECORDING CAIRO_INTERNAL_SURFACE_TYPE_RECORDING +#endif + +static const cairo_user_data_key_t svg_closure_key; + +typedef struct _svg_target_closure { + char *filename; + int width, height; + cairo_surface_t *target; +} svg_target_closure_t; + +static cairo_surface_t * +_cairo_boilerplate_svg_create_surface (const char *name, + cairo_content_t content, + cairo_svg_version_t version, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + svg_target_closure_t *ptc; + cairo_surface_t *surface; + cairo_status_t status; + + *closure = ptc = xmalloc (sizeof (svg_target_closure_t)); + + ptc->width = ceil (width); + ptc->height = ceil (height); + + xasprintf (&ptc->filename, "%s.out.svg", name); + xunlink (ptc->filename); + + surface = cairo_svg_surface_create (ptc->filename, width, height); + if (cairo_surface_status (surface)) + goto CLEANUP_FILENAME; + + cairo_svg_surface_restrict_to_version (surface, version); + cairo_surface_set_fallback_resolution (surface, 72., 72.); + + if (content == CAIRO_CONTENT_COLOR) { + ptc->target = surface; + surface = cairo_surface_create_similar (ptc->target, + CAIRO_CONTENT_COLOR, + ptc->width, ptc->height); + if (cairo_surface_status (surface)) + goto CLEANUP_TARGET; + } else + ptc->target = NULL; + + status = cairo_surface_set_user_data (surface, &svg_closure_key, ptc, NULL); + if (status == CAIRO_STATUS_SUCCESS) + return surface; + + cairo_surface_destroy (surface); + surface = cairo_boilerplate_surface_create_in_error (status); + + CLEANUP_TARGET: + cairo_surface_destroy (ptc->target); + CLEANUP_FILENAME: + free (ptc->filename); + free (ptc); + return surface; +} + +static cairo_surface_t * +_cairo_boilerplate_svg11_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + /* current default, but be explicit in case the default changes */ + return _cairo_boilerplate_svg_create_surface (name, content, + CAIRO_SVG_VERSION_1_1, + width, height, + max_width, max_height, + mode, + closure); +} + +static cairo_status_t +_cairo_boilerplate_svg_finish_surface (cairo_surface_t *surface) +{ + svg_target_closure_t *ptc = cairo_surface_get_user_data (surface, + &svg_closure_key); + cairo_status_t status; + + if (ptc->target) { + /* Both surface and ptc->target were originally created at the + * same dimensions. We want a 1:1 copy here, so we first clear any + * device offset and scale on surface. + * + * In a more realistic use case of device offsets, the target of + * this copying would be of a different size than the source, and + * the offset would be desirable during the copy operation. */ + double x_offset, y_offset; + double x_scale, y_scale; + cairo_surface_get_device_offset (surface, &x_offset, &y_offset); + cairo_surface_get_device_scale (surface, &x_scale, &y_scale); + cairo_surface_set_device_offset (surface, 0, 0); + cairo_surface_set_device_scale (surface, 1, 1); + cairo_t *cr; + cr = cairo_create (ptc->target); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_paint (cr); + cairo_show_page (cr); + status = cairo_status (cr); + cairo_destroy (cr); + cairo_surface_set_device_offset (surface, x_offset, y_offset); + cairo_surface_set_device_scale (surface, x_scale, y_scale); + + if (status) + return status; + + cairo_surface_finish (surface); + status = cairo_surface_status (surface); + if (status) + return status; + + surface = ptc->target; + } + + cairo_surface_finish (surface); + status = cairo_surface_status (surface); + if (status) + return status; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_boilerplate_svg_surface_write_to_png (cairo_surface_t *surface, + const char *filename) +{ + svg_target_closure_t *ptc = cairo_surface_get_user_data (surface, + &svg_closure_key); + char command[4096]; + int exitstatus; + + sprintf (command, "./svg2png %s %s", + ptc->filename, filename); + + exitstatus = system (command); +#if _XOPEN_SOURCE && HAVE_SIGNAL_H + if (WIFSIGNALED (exitstatus)) + raise (WTERMSIG (exitstatus)); +#endif + if (exitstatus) + return CAIRO_STATUS_WRITE_ERROR; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_surface_t * +_cairo_boilerplate_svg_convert_to_image (cairo_surface_t *surface) +{ + svg_target_closure_t *ptc = cairo_surface_get_user_data (surface, + &svg_closure_key); + + return cairo_boilerplate_convert_to_image (ptc->filename, 0); +} + +static cairo_surface_t * +_cairo_boilerplate_svg_get_image_surface (cairo_surface_t *surface, + int page, + int width, + int height) +{ + cairo_surface_t *image; + double x_offset, y_offset; + double x_scale, y_scale; + + if (page != 0) + return cairo_boilerplate_surface_create_in_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + + image = _cairo_boilerplate_svg_convert_to_image (surface); + cairo_surface_get_device_offset (surface, &x_offset, &y_offset); + cairo_surface_get_device_scale (surface, &x_scale, &y_scale); + cairo_surface_set_device_offset (image, x_offset, y_offset); + cairo_surface_set_device_scale (image, x_scale, y_scale); + surface = _cairo_boilerplate_get_image_surface (image, 0, width, height); + cairo_surface_destroy (image); + + return surface; +} + +static void +_cairo_boilerplate_svg_cleanup (void *closure) +{ + svg_target_closure_t *ptc = closure; + if (ptc->target != NULL) { + cairo_surface_finish (ptc->target); + cairo_surface_destroy (ptc->target); + } + free (ptc->filename); + free (ptc); +} + +static void +_cairo_boilerplate_svg_force_fallbacks (cairo_surface_t *abstract_surface, + double x_pixels_per_inch, + double y_pixels_per_inch) +{ + svg_target_closure_t *ptc = cairo_surface_get_user_data (abstract_surface, + &svg_closure_key); + + if (ptc->target) + abstract_surface = ptc->target; + + cairo_paginated_surface_t *paginated = (cairo_paginated_surface_t*) abstract_surface; + _cairo_svg_surface_set_force_fallbacks (paginated->target, TRUE); + cairo_surface_set_fallback_resolution (&paginated->base, + x_pixels_per_inch, + y_pixels_per_inch); +} + +static const cairo_boilerplate_target_t targets[] = { + /* It seems we should be able to round-trip SVG content perfectly + * through librsvg and cairo, but for some mysterious reason, some + * systems get an error of 1 for some pixels on some of the text + * tests. XXX: I'd still like to chase these down at some point. + * For now just set the svg error tolerance to 1. */ + { + "svg11", "svg", ".svg", NULL, + CAIRO_SURFACE_TYPE_SVG, CAIRO_CONTENT_COLOR_ALPHA, 1, + "cairo_svg_surface_create", + _cairo_boilerplate_svg11_create_surface, + cairo_surface_create_similar, + _cairo_boilerplate_svg_force_fallbacks, + _cairo_boilerplate_svg_finish_surface, + _cairo_boilerplate_svg_get_image_surface, + _cairo_boilerplate_svg_surface_write_to_png, + _cairo_boilerplate_svg_cleanup, + NULL, NULL, FALSE, TRUE, TRUE + }, + { + "svg11", "svg", ".svg", NULL, + CAIRO_SURFACE_TYPE_RECORDING, CAIRO_CONTENT_COLOR, 1, + "cairo_svg_surface_create", + _cairo_boilerplate_svg11_create_surface, + cairo_surface_create_similar, + _cairo_boilerplate_svg_force_fallbacks, + _cairo_boilerplate_svg_finish_surface, + _cairo_boilerplate_svg_get_image_surface, + _cairo_boilerplate_svg_surface_write_to_png, + _cairo_boilerplate_svg_cleanup, + NULL, NULL, FALSE, TRUE, TRUE + }, +}; +CAIRO_BOILERPLATE (svg, targets) + +#else + +CAIRO_NO_BOILERPLATE (svg) + +#endif diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-system.c b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-system.c new file mode 100644 index 0000000000..e9bcd78c51 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-system.c @@ -0,0 +1,164 @@ +/* + * Copyright © 2004 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-boilerplate.h" +#include "cairo-boilerplate-system.h" + +#include +#include +#include +#ifdef HAVE_UNISTD_H +#include +#endif +#include + +void * +xmalloc (size_t size) +{ + void *buf; + + if (size == 0) + return NULL; + + buf = malloc (size); + if (buf == NULL) { + fprintf (stderr, "Error: Out of memory. Exiting.\n"); + exit (1); + } + + return buf; +} + +void * +xcalloc (size_t nmemb, + size_t size) +{ + void *buf; + + if (nmemb == 0 || size == 0) + return NULL; + + buf = calloc (nmemb, size); + if (buf == NULL) { + fprintf (stderr, "Error: Out of memory. Exiting\n"); + exit (1); + } + + return buf; +} + +void * +xrealloc (void *buf, + size_t size) +{ + buf = realloc (buf, size); + if (buf == NULL && size != 0) { + fprintf (stderr, "Error: Out of memory. Exiting\n"); + exit (1); + } + + return buf; +} + +void +xasprintf (char **strp, + const char *fmt, + ...) +{ +#ifdef HAVE_VASPRINTF + va_list va; + int ret; + + va_start (va, fmt); + ret = vasprintf (strp, fmt, va); + va_end (va); + + if (ret < 0) { + fprintf (stderr, "Error: Out of memory. Exiting.\n"); + exit (1); + } +#else /* !HAVE_VASNPRINTF */ +#define BUF_SIZE 1024 + va_list va; + char buffer[BUF_SIZE]; + int ret, len; + + va_start (va, fmt); + ret = vsnprintf (buffer, sizeof (buffer), fmt, va); + va_end (va); + + if (ret < 0) { + fprintf (stderr, "Failure in vsnprintf\n"); + exit (1); + } + + len = (ret + sizeof (int)) & -sizeof (int); + *strp = malloc (len); + if (*strp == NULL) { + fprintf (stderr, "Out of memory\n"); + exit (1); + } + + if ((unsigned) ret < sizeof (buffer)) { + memcpy (*strp, buffer, ret); + } else { + va_start (va, fmt); + ret = vsnprintf (*strp, len, fmt, va); + va_end (va); + + if (ret >= len) { + free (*strp); + fprintf (stderr, "Overflowed dynamic buffer\n"); + exit (1); + } + } + memset (*strp + ret, 0, len-ret); +#endif /* !HAVE_VASNPRINTF */ +} + +void +xunlink (const char *pathname) +{ + if (unlink (pathname) < 0 && errno != ENOENT) { + fprintf (stderr, "Error: Cannot remove %s: %s\n", + pathname, strerror (errno)); + exit (1); + } +} + +char * +xstrdup (const char *str) +{ + if (str == NULL) + return NULL; + + str = strdup (str); + if (str == NULL) { + fprintf (stderr, "Error: Out of memory. Exiting.\n"); + exit (1); + } + + return (char *) str; +} diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-system.h b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-system.h new file mode 100644 index 0000000000..28165671b3 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-system.h @@ -0,0 +1,59 @@ +/* + * Copyright © 2004 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#ifndef _XMALLOC_H_ +#define _XMALLOC_H_ + +#include "cairo-boilerplate.h" + +#define xmalloc cairo_boilerplate_xmalloc +void * +xmalloc (size_t size); + +#define xcalloc cairo_boilerplate_xcalloc +void * +xcalloc (size_t nmemb, + size_t size); + +#define xrealloc cairo_boilerplate_xrealloc +void * +xrealloc (void *buf, + size_t size); + +#define xasprintf cairo_boilerplate_xasprintf +void +xasprintf (char **strp, + const char *fmt, + ...) CAIRO_BOILERPLATE_PRINTF_FORMAT(2, 3); + +#define xunlink cairo_boilerplate_xunlink +void +xunlink (const char *path); + +#define xstrdup cairo_boilerplate_xstrdup +char * +xstrdup (const char *str); + +#endif diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-test-surfaces.c b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-test-surfaces.c new file mode 100644 index 0000000000..64e6697836 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-test-surfaces.c @@ -0,0 +1,460 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2004,2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-boilerplate-private.h" + +#include + +#include +#include +#if CAIRO_HAS_TEST_PAGINATED_SURFACE +#include +#endif + +static cairo_surface_t * +_cairo_boilerplate_test_base_compositor_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + *closure = NULL; + return _cairo_test_base_compositor_surface_create (content, ceil (width), ceil (height)); +} + + +static cairo_surface_t * +_cairo_boilerplate_test_fallback_compositor_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + *closure = NULL; + return _cairo_test_fallback_compositor_surface_create (content, ceil (width), ceil (height)); +} + +static cairo_surface_t * +_cairo_boilerplate_test_mask_compositor_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + *closure = NULL; + return _cairo_test_mask_compositor_surface_create (content, ceil (width), ceil (height)); +} + + +static cairo_surface_t * +_cairo_boilerplate_test_traps_compositor_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + *closure = NULL; + return _cairo_test_traps_compositor_surface_create (content, ceil (width), ceil (height)); +} + +static cairo_surface_t * +_cairo_boilerplate_test_spans_compositor_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + *closure = NULL; + return _cairo_test_spans_compositor_surface_create (content, ceil (width), ceil (height)); +} + +static cairo_surface_t * +_cairo_boilerplate_test_no_fallback_compositor_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + if (mode == CAIRO_BOILERPLATE_MODE_TEST) + return NULL; + + *closure = NULL; + return _cairo_test_no_fallback_compositor_surface_create (content, ceil (width), ceil (height)); +} + +static cairo_surface_t * +_cairo_boilerplate_test_no_traps_compositor_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + if (mode == CAIRO_BOILERPLATE_MODE_TEST) + return NULL; + + *closure = NULL; + return _cairo_test_no_traps_compositor_surface_create (content, ceil (width), ceil (height)); +} + +static cairo_surface_t * +_cairo_boilerplate_test_no_spans_compositor_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + if (mode == CAIRO_BOILERPLATE_MODE_TEST) + return NULL; + + *closure = NULL; + return _cairo_test_no_spans_compositor_surface_create (content, ceil (width), ceil (height)); +} + +#if CAIRO_HAS_TEST_PAGINATED_SURFACE +static const cairo_user_data_key_t test_paginated_closure_key; + +typedef struct { + cairo_surface_t *target; +} test_paginated_closure_t; + +static cairo_surface_t * +_cairo_boilerplate_test_paginated_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + test_paginated_closure_t *tpc; + cairo_format_t format; + cairo_surface_t *surface; + cairo_status_t status; + + *closure = tpc = xmalloc (sizeof (test_paginated_closure_t)); + + format = cairo_boilerplate_format_from_content (content); + tpc->target = cairo_image_surface_create (format, + ceil (width), ceil (height)); + + surface = _cairo_test_paginated_surface_create (tpc->target); + if (cairo_surface_status (surface)) + goto CLEANUP; + + status = cairo_surface_set_user_data (surface, + &test_paginated_closure_key, + tpc, NULL); + if (status == CAIRO_STATUS_SUCCESS) + return surface; + + cairo_surface_destroy (surface); + surface = cairo_boilerplate_surface_create_in_error (status); + + cairo_surface_destroy (tpc->target); + + CLEANUP: + free (tpc); + return surface; +} + +/* The only reason we go through all these machinations to write a PNG + * image is to _really ensure_ that the data actually landed in our + * buffer through the paginated surface to the test_paginated_surface. + * + * If we didn't implement this function then the default + * cairo_surface_write_to_png would result in the paginated_surface's + * acquire_source_image function replaying the recording-surface to an + * intermediate image surface. And in that case the + * test_paginated_surface would not be involved and wouldn't be + * tested. + */ +static cairo_status_t +_cairo_boilerplate_test_paginated_surface_write_to_png (cairo_surface_t *surface, + const char *filename) +{ + test_paginated_closure_t *tpc; + cairo_status_t status; + + /* show page first. the automatic show_page is too late for us */ + cairo_surface_show_page (surface); + status = cairo_surface_status (surface); + if (status) + return status; + + tpc = cairo_surface_get_user_data (surface, &test_paginated_closure_key); + return cairo_surface_write_to_png (tpc->target, filename); +} + +static cairo_surface_t * +_cairo_boilerplate_test_paginated_get_image_surface (cairo_surface_t *surface, + int page, + int width, + int height) +{ + test_paginated_closure_t *tpc; + cairo_status_t status; + + /* XXX separate finish as per PDF */ + if (page != 0) + return cairo_boilerplate_surface_create_in_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + + /* show page first. the automatic show_page is too late for us */ + cairo_surface_show_page (surface); + status = cairo_surface_status (surface); + if (status) + return cairo_boilerplate_surface_create_in_error (status); + + tpc = cairo_surface_get_user_data (surface, &test_paginated_closure_key); + return _cairo_boilerplate_get_image_surface (tpc->target, 0, width, height); +} + +static void +_cairo_boilerplate_test_paginated_cleanup (void *closure) +{ + test_paginated_closure_t *tpc = closure; + + cairo_surface_destroy (tpc->target); + free (tpc); +} +#endif + +static const cairo_boilerplate_target_t targets[] = { + { + "test-base", "base", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, + CAIRO_CONTENT_COLOR_ALPHA, 0, + "_cairo_test_base_compositor_surface_create", + _cairo_boilerplate_test_base_compositor_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, NULL, TRUE, FALSE, FALSE + }, + { + "test-base", "base", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, + CAIRO_CONTENT_COLOR, 0, + "_cairo_test_base_compositor_surface_create", + _cairo_boilerplate_test_base_compositor_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, NULL, FALSE, FALSE, FALSE + }, + + { + "test-fallback", "image", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, + CAIRO_CONTENT_COLOR_ALPHA, 0, + "_cairo_test_fallback_compositor_surface_create", + _cairo_boilerplate_test_fallback_compositor_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, NULL, FALSE, FALSE, FALSE + }, + { + "test-fallback", "image", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, + CAIRO_CONTENT_COLOR, 0, + "_cairo_test_fallback_compositor_surface_create", + _cairo_boilerplate_test_fallback_compositor_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, NULL, FALSE, FALSE, FALSE + }, + + { + "test-mask", "mask", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, + CAIRO_CONTENT_COLOR_ALPHA, 0, + "_cairo_test_mask_compositor_surface_create", + _cairo_boilerplate_test_mask_compositor_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, NULL, TRUE, FALSE, FALSE + }, + { + "test-mask", "mask", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, + CAIRO_CONTENT_COLOR, 0, + "_cairo_test_mask_compositor_surface_create", + _cairo_boilerplate_test_mask_compositor_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, NULL, FALSE, FALSE, FALSE + }, + + { + "test-traps", "traps", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, + CAIRO_CONTENT_COLOR_ALPHA, 0, + "_cairo_test_traps_compositor_surface_create", + _cairo_boilerplate_test_traps_compositor_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, NULL, TRUE, FALSE, FALSE + }, + { + "test-traps", "traps", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, + CAIRO_CONTENT_COLOR, 0, + "_cairo_test_traps_compositor_surface_create", + _cairo_boilerplate_test_traps_compositor_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, NULL, FALSE, FALSE, FALSE + }, + + { + "test-spans", "spans", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, + CAIRO_CONTENT_COLOR_ALPHA, 0, + "_cairo_test_spans_compositor_surface_create", + _cairo_boilerplate_test_spans_compositor_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, NULL, TRUE, FALSE, FALSE + }, + { + "test-spans", "spans", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, + CAIRO_CONTENT_COLOR, 0, + "_cairo_test_spans_compositor_surface_create", + _cairo_boilerplate_test_spans_compositor_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, NULL, FALSE, FALSE, FALSE + }, + + { + "no-fallback", "image", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, + CAIRO_CONTENT_COLOR_ALPHA, 0, + "_cairo_test_no_fallback_compositor_surface_create", + _cairo_boilerplate_test_no_fallback_compositor_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, NULL, FALSE, FALSE, FALSE + }, + { + "no-traps", "traps", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, + CAIRO_CONTENT_COLOR_ALPHA, 0, + "_cairo_test_no_traps_compositor_surface_create", + _cairo_boilerplate_test_no_traps_compositor_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, NULL, TRUE, FALSE, FALSE + }, + { + "no-spans", "spans", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, + CAIRO_CONTENT_COLOR_ALPHA, 0, + "_cairo_test_no_spans_compositor_surface_create", + _cairo_boilerplate_test_no_spans_compositor_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, NULL, TRUE, FALSE, FALSE + }, +#if CAIRO_HAS_TEST_PAGINATED_SURFACE + { + "test-paginated", "image", NULL, NULL, + CAIRO_INTERNAL_SURFACE_TYPE_TEST_PAGINATED, + CAIRO_CONTENT_COLOR_ALPHA, 0, + "_cairo_test_paginated_surface_create", + _cairo_boilerplate_test_paginated_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_test_paginated_get_image_surface, + _cairo_boilerplate_test_paginated_surface_write_to_png, + _cairo_boilerplate_test_paginated_cleanup, + NULL, NULL, FALSE, TRUE, FALSE + }, + { + "test-paginated", "image", NULL, NULL, + CAIRO_INTERNAL_SURFACE_TYPE_TEST_PAGINATED, + CAIRO_CONTENT_COLOR, 0, + "_cairo_test_paginated_surface_create", + _cairo_boilerplate_test_paginated_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_test_paginated_get_image_surface, + _cairo_boilerplate_test_paginated_surface_write_to_png, + _cairo_boilerplate_test_paginated_cleanup, + NULL, NULL, FALSE, TRUE, FALSE + }, +#endif +}; +CAIRO_BOILERPLATE (test, targets) diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-win32-printing.c b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-win32-printing.c new file mode 100644 index 0000000000..9177480fc5 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-win32-printing.c @@ -0,0 +1,361 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2004,2006 Red Hat, Inc. + * Copyright © 2007, Adrian Johnson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Carl D. Worth + * Adrian Johnson + */ + +#include "cairo-boilerplate-private.h" +#include "cairo-malloc-private.h" + +#if CAIRO_CAN_TEST_WIN32_PRINTING_SURFACE + +#include +#include + +#include + +static cairo_user_data_key_t win32_closure_key; + +typedef struct _win32_target_closure { + char *filename; + int width; + int height; + cairo_surface_t *target; + HDC dc; + int left_margin; + int bottom_margin; +} win32_target_closure_t; + +static cairo_bool_t +printer_is_postscript_level_3 (HDC dc) +{ + DWORD word; + INT ps_feature, ps_level; + + word = PSIDENT_GDICENTRIC; + if (ExtEscape (dc, POSTSCRIPT_IDENTIFY, sizeof(DWORD), (char *)&word, 0, (char *)NULL) <= 0) + return FALSE; + + ps_feature = FEATURESETTING_PSLEVEL; + if (ExtEscape (dc, GET_PS_FEATURESETTING, sizeof(INT), + (char *)&ps_feature, sizeof(INT), (char *)&ps_level) <= 0) + return FALSE; + + if (ps_level >= 3) + return TRUE; + + return FALSE; +} + +static void +create_printer_dc (win32_target_closure_t *ptc) +{ + char *printer_name; + DWORD size; + int x_dpi, y_dpi, left_margin, top_margin, page_height, printable_height; + XFORM xform; + + ptc->dc = NULL; + GetDefaultPrinter (NULL, &size); + printer_name = _cairo_malloc (size); + + if (printer_name == NULL) + return; + + if (GetDefaultPrinter (printer_name, &size) == 0) { + free (printer_name); + return; + } + + /* printf("\nPrinting to : %s\n", printer_name); */ + ptc->dc = CreateDC (NULL, printer_name, NULL, NULL); + free (printer_name); + + if (!printer_is_postscript_level_3 (ptc->dc)) { + printf("The default printer driver must be a color PostScript level 3 printer\n"); + ptc->dc = NULL; + return; + } + + /* The printer device units on win32 are 1 unit == 1 dot and the + * origin is the start of the printable area. We transform the + * coordinate space to 1 unit is 1 point as expected by the + * tests. As the page size is larger than the test surface, the + * origin is translated down so that the each test is drawn at the + * bottom left corner of the page. This is because the bottom left + * corner of the PNG image that ghostscript creates is positioned + * at origin of the PS coordinates (ie the bottom left of the + * page). The left and bottom margins are stored in + * win32_target_closure as size of the PNG image needs to be + * increased because the test output is offset from the bottom + * left by the non printable margins. After the PNG is created the + * margins will be chopped off so the image matches the reference + * image. + */ + printable_height = GetDeviceCaps (ptc->dc, VERTRES); + x_dpi = GetDeviceCaps (ptc->dc, LOGPIXELSX); + y_dpi = GetDeviceCaps (ptc->dc, LOGPIXELSY); + left_margin = GetDeviceCaps (ptc->dc, PHYSICALOFFSETX); + top_margin = GetDeviceCaps (ptc->dc, PHYSICALOFFSETY); + page_height = GetDeviceCaps (ptc->dc, PHYSICALHEIGHT); + + SetGraphicsMode (ptc->dc, GM_ADVANCED); + xform.eM11 = x_dpi/72.0; + xform.eM12 = 0; + xform.eM21 = 0; + xform.eM22 = y_dpi/72.0; + xform.eDx = 0; + xform.eDy = printable_height - ptc->height*y_dpi/72.0; + if (!SetWorldTransform (ptc->dc, &xform)) { + fprintf (stderr, "%s:%s\n", "cairo-boilerplate-win32-printing", "SetWorldTransform"); + return; + } + + ptc->left_margin = 72.0*left_margin/x_dpi; + ptc->bottom_margin = 72.0*(page_height - printable_height - top_margin)/y_dpi; +} + +static cairo_surface_t * +_cairo_boilerplate_win32_printing_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + win32_target_closure_t *ptc; + cairo_surface_t *surface; + DOCINFO di; + + if (content == CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED) + content = CAIRO_CONTENT_COLOR_ALPHA; + + *closure = ptc = xmalloc (sizeof (win32_target_closure_t)); + + xasprintf (&ptc->filename, "%s.out.ps", name); + xunlink (ptc->filename); + + memset (&di, 0, sizeof (DOCINFO)); + di.cbSize = sizeof (DOCINFO); + di.lpszDocName = ptc->filename; + di.lpszOutput = ptc->filename; + + ptc->width = width; + ptc->height = height; + + create_printer_dc (ptc); + if (ptc->dc == NULL) { + printf("\nFailed to create printer\n"); + free (ptc->filename); + free (ptc); + return NULL; + } + StartDoc (ptc->dc, &di); + StartPage (ptc->dc); + surface = cairo_win32_printing_surface_create (ptc->dc); + if (cairo_surface_status (surface)) { + free (ptc->filename); + free (ptc); + return NULL; + } + cairo_surface_set_fallback_resolution (surface, 72., 72.); + + if (content == CAIRO_CONTENT_COLOR) { + ptc->target = surface; + surface = cairo_surface_create_similar (ptc->target, + CAIRO_CONTENT_COLOR, + width, height); + } else { + ptc->target = NULL; + } + + if (cairo_surface_set_user_data (surface, + &win32_closure_key, + ptc, + NULL) != CAIRO_STATUS_SUCCESS) { + cairo_surface_destroy (surface); + if (ptc->target != NULL) + cairo_surface_destroy (ptc->target); + free (ptc->filename); + free (ptc); + return NULL; + } + + return surface; +} + +static cairo_status_t +_cairo_boilerplate_win32_printing_surface_write_to_png (cairo_surface_t *surface, + const char *filename) +{ + win32_target_closure_t *ptc = cairo_surface_get_user_data (surface, &win32_closure_key); + char command[4096]; + cairo_surface_t *src_image, *dst_image; + cairo_t *cr; + cairo_status_t status; + + if (ptc->target) { + /* Both surface and ptc->target were originally created at the + * same dimensions. We want a 1:1 copy here, so we first clear any + * device offset and scale on surface. + * + * In a more realistic use case of device offsets, the target of + * this copying would be of a different size than the source, and + * the offset would be desirable during the copy operation. */ + double x_offset, y_offset; + double x_scale, y_scale; + cairo_surface_get_device_offset (surface, &x_offset, &y_offset); + cairo_surface_get_device_scale (surface, &x_scale, &y_scale); + cairo_surface_set_device_offset (surface, 0, 0); + cairo_surface_set_device_scale (surface, 1, 1); + cairo_t *cr; + cr = cairo_create (ptc->target); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_paint (cr); + cairo_show_page (cr); + cairo_destroy (cr); + cairo_surface_set_device_offset (surface, x_offset, y_offset); + cairo_surface_set_device_scale (surface, x_scale, y_scale); + + cairo_surface_finish (surface); + surface = ptc->target; + } + + cairo_surface_finish (surface); + EndPage (ptc->dc); + EndDoc (ptc->dc); + sprintf (command, "gs -q -r72 -g%dx%d -dSAFER -dBATCH -dNOPAUSE -sDEVICE=pngalpha -sOutputFile=%s %s", + ptc->width + ptc->left_margin, ptc->height + ptc->bottom_margin, filename, ptc->filename); + + if (system (command) != 0) + return CAIRO_STATUS_WRITE_ERROR; + + /* Create a new image from the ghostscript image that has the + * left and bottom margins removed */ + + src_image = cairo_image_surface_create_from_png (filename); + status = cairo_surface_status (src_image); + if (status) + return status; + + dst_image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + ptc->width, + ptc->height); + cr = cairo_create (dst_image); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_surface (cr, src_image, -ptc->left_margin, 0); + cairo_paint (cr); + cairo_destroy (cr); + + cairo_surface_write_to_png (dst_image, filename); + status = cairo_surface_status (dst_image); + if (status) + return status; + + cairo_surface_destroy (src_image); + cairo_surface_destroy (dst_image); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_surface_t * +_cairo_boilerplate_win32_printing_get_image_surface (cairo_surface_t *surface, + int page, + int width, + int height) +{ + win32_target_closure_t *ptc = cairo_surface_get_user_data (surface, + &win32_closure_key); + char *filename; + cairo_status_t status; + + /* XXX test paginated interface */ + if (page != 0) + return cairo_boilerplate_surface_create_in_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + + xasprintf (&filename, "%s.png", ptc->filename); + status = _cairo_boilerplate_win32_printing_surface_write_to_png (surface, filename); + if (status) + return cairo_boilerplate_surface_create_in_error (status); + + surface = cairo_boilerplate_get_image_surface_from_png (filename, + width, + height, + ptc->target == NULL); + + remove (filename); + free (filename); + + return surface; +} + +static void +_cairo_boilerplate_win32_printing_cleanup (void *closure) +{ + win32_target_closure_t *ptc = closure; + + if (ptc->target) + cairo_surface_destroy (ptc->target); + free (ptc->filename); + free (ptc); + DeleteDC (ptc->dc); +} + +static const cairo_boilerplate_target_t targets[] = { + { + "win32-printing", "win32", ".ps", NULL, + CAIRO_SURFACE_TYPE_WIN32_PRINTING, + CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED, 0, + "cairo_win32_printing_surface_create", + _cairo_boilerplate_win32_printing_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_win32_printing_get_image_surface, + _cairo_boilerplate_win32_printing_surface_write_to_png, + _cairo_boilerplate_win32_printing_cleanup, + NULL, NULL, FALSE, TRUE, TRUE + }, + { + "win32-printing", "win32", ".ps", NULL, + CAIRO_SURFACE_TYPE_RECORDING, CAIRO_CONTENT_COLOR, 0, + "cairo_win32_printing_surface_create", + _cairo_boilerplate_win32_printing_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_win32_printing_get_image_surface, + _cairo_boilerplate_win32_printing_surface_write_to_png, + _cairo_boilerplate_win32_printing_cleanup, + NULL, NULL, FALSE, TRUE, TRUE + }, +}; +CAIRO_BOILERPLATE (win32_printing, targets) + +#else + +CAIRO_NO_BOILERPLATE (win32_printing) + +#endif diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-win32.c b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-win32.c new file mode 100644 index 0000000000..4b3eda9dda --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-win32.c @@ -0,0 +1,294 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2004,2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-boilerplate-private.h" + +#include + +#include +#include + +static const cairo_user_data_key_t win32_closure_key; + +typedef struct _win32_target_closure { + HWND wnd; + HDC dc; + ATOM bpl_atom; + cairo_surface_t *surface; +} win32_target_closure_t; + +static void +_cairo_boilerplate_win32_cleanup_window_surface (void *closure) +{ + win32_target_closure_t *win32tc = closure; + + if (win32tc != NULL) + { + if (win32tc->wnd != NULL && + ReleaseDC (win32tc->wnd, win32tc->dc) != 1) + fprintf (stderr, + "Failed to release DC of a test window when cleaning up.\n"); + if (win32tc->wnd != NULL && + DestroyWindow (win32tc->wnd) == 0) + fprintf (stderr, + "Failed to destroy a test window when cleaning up, GLE is %lu.\n", + GetLastError ()); + if (win32tc->bpl_atom != 0 && + UnregisterClassA ((LPCSTR) MAKELPARAM (win32tc->bpl_atom, 0), GetModuleHandle (NULL)) == 0 && + GetLastError () != ERROR_CLASS_DOES_NOT_EXIST) + fprintf (stderr, + "Failed to unregister boilerplate window class, GLE is %lu.\n", + GetLastError ()); + + free (win32tc); + } +} + +static win32_target_closure_t * +_cairo_boilerplate_win32_create_window (int width, + int height) +{ + WNDCLASSEXA wincl; + win32_target_closure_t *win32tc; + LPCSTR window_class_name; + + ZeroMemory (&wincl, sizeof (WNDCLASSEXA)); + wincl.cbSize = sizeof (WNDCLASSEXA); + wincl.hInstance = GetModuleHandle (0); + wincl.lpszClassName = "cairo_boilerplate_win32_dummy"; + wincl.lpfnWndProc = DefWindowProcA; + wincl.style = CS_OWNDC; + + win32tc = calloc (1, sizeof (win32_target_closure_t)); + + if (win32tc == NULL) + { + int error = errno; + fprintf (stderr, "Ran out of memory: %d.\n", error); + return NULL; + } + + ZeroMemory (win32tc, sizeof (win32_target_closure_t)); + + win32tc->bpl_atom = RegisterClassExA (&wincl); + + if (win32tc->bpl_atom == 0 && GetLastError () != ERROR_CLASS_ALREADY_EXISTS) + { + fprintf (stderr, + "Failed to register a boilerplate window class, GLE is %lu.\n", + GetLastError ()); + _cairo_boilerplate_win32_cleanup_window_surface (win32tc); + return NULL; + } + + if (win32tc->bpl_atom == 0) + window_class_name = wincl.lpszClassName; + else + window_class_name = (LPCSTR) MAKELPARAM (win32tc->bpl_atom, 0); + + win32tc->wnd = CreateWindowExA (WS_EX_TOOLWINDOW, + window_class_name, + 0, + WS_POPUP, + 0, + 0, + width, + height, + 0, + 0, + 0, + 0); + + if (win32tc->wnd == NULL) + { + fprintf (stderr, + "Failed to create a test window, GLE is %lu.\n", + GetLastError ()); + _cairo_boilerplate_win32_cleanup_window_surface (win32tc); + return NULL; + } + + win32tc->dc = GetDC (win32tc->wnd); + + if (win32tc->dc == NULL) + { + fprintf (stderr, "Failed to get test window DC.\n"); + _cairo_boilerplate_win32_cleanup_window_surface (win32tc); + return NULL; + } + + SetWindowPos (win32tc->wnd, + HWND_BOTTOM, + INT_MIN, + INT_MIN, + width, + height, + SWP_NOACTIVATE | SWP_SHOWWINDOW); + + return win32tc; +} + +static cairo_surface_t * +_cairo_boilerplate_win32_create_window_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + win32_target_closure_t *win32tc; + cairo_surface_t *surface; + cairo_format_t format; + cairo_status_t status; + + win32tc = _cairo_boilerplate_win32_create_window (width, height); + + if (win32tc == NULL) + return NULL; + + format = cairo_boilerplate_format_from_content (content); + + surface = cairo_win32_surface_create_with_format (win32tc->dc, format); + + win32tc->surface = surface; + + status = cairo_surface_status (surface); + + if (status != CAIRO_STATUS_SUCCESS) + { + fprintf (stderr, + "Failed to create the test surface: %s [%d].\n", + cairo_status_to_string (status), status); + _cairo_boilerplate_win32_cleanup_window_surface (win32tc); + return NULL; + } + + status = cairo_surface_set_user_data (surface, &win32_closure_key, win32tc, NULL); + + if (status != CAIRO_STATUS_SUCCESS) + { + fprintf (stderr, + "Failed to set surface userdata: %s [%d].\n", + cairo_status_to_string (status), status); + + cairo_surface_destroy (surface); + _cairo_boilerplate_win32_cleanup_window_surface (win32tc); + + return NULL; + } + + *closure = win32tc; + + return surface; +} + +static cairo_surface_t * +_cairo_boilerplate_win32_create_dib_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + cairo_format_t format; + + format = cairo_boilerplate_format_from_content (content); + + *closure = NULL; + + return cairo_win32_surface_create_with_dib (format, width, height); +} + +static const cairo_boilerplate_target_t targets[] = { + { + "win32", "win32", NULL, NULL, + CAIRO_SURFACE_TYPE_WIN32, CAIRO_CONTENT_COLOR, 0, + "cairo_win32_surface_create_with_dib", + _cairo_boilerplate_win32_create_dib_surface, + cairo_surface_create_similar, + NULL, + NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, + NULL, + NULL, + TRUE, FALSE, FALSE + }, + /* Testing the win32 surface isn't interesting, since for + * ARGB images it just chains to the image backend + */ + { + "win32", "win32", NULL, NULL, + CAIRO_SURFACE_TYPE_WIN32, CAIRO_CONTENT_COLOR_ALPHA, 0, + "cairo_win32_surface_create_with_dib", + _cairo_boilerplate_win32_create_dib_surface, + cairo_surface_create_similar, + NULL, + NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, + NULL, + NULL, + FALSE, FALSE, FALSE + }, + { + "win32-window-color", "win32", NULL, NULL, + CAIRO_SURFACE_TYPE_WIN32, CAIRO_CONTENT_COLOR, 1, + "cairo_win32_surface_create", + _cairo_boilerplate_win32_create_window_surface, + cairo_surface_create_similar, + NULL, + NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_win32_cleanup_window_surface, + NULL, + NULL, + FALSE, FALSE, FALSE + }, + { + "win32-window-coloralpha", "win32", NULL, NULL, + CAIRO_SURFACE_TYPE_WIN32, CAIRO_CONTENT_COLOR_ALPHA, 1, + "cairo_win32_surface_create_with_format", + _cairo_boilerplate_win32_create_window_surface, + cairo_surface_create_similar, + NULL, + NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_win32_cleanup_window_surface, + NULL, + NULL, + FALSE, FALSE, FALSE + }, +}; +CAIRO_BOILERPLATE (win32, targets) diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-xcb.c b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-xcb.c new file mode 100644 index 0000000000..d54c0b54b0 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-xcb.c @@ -0,0 +1,885 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2004,2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-boilerplate-private.h" +#include "cairo-malloc-private.h" + +#include + +#include + +/* Errors have response_type == 0 */ +#define CAIRO_XCB_ERROR 0 + +static const cairo_user_data_key_t xcb_closure_key; + +typedef struct _xcb_target_closure { + xcb_connection_t *c; + cairo_device_t *device; + uint32_t drawable; + cairo_bool_t is_pixmap; + cairo_surface_t *surface; +} xcb_target_closure_t; + +static cairo_status_t +_cairo_boilerplate_xcb_handle_errors (xcb_target_closure_t *xtc) +{ + xcb_generic_event_t *ev = NULL; + + /* Ignore all MappingNotify events; those might happen without us causing them */ + do { + free(ev); + ev = xcb_poll_for_event(xtc->c); + } while (ev != NULL && ev->response_type == XCB_MAPPING_NOTIFY); + + if (ev != NULL) { + if (ev->response_type == CAIRO_XCB_ERROR) { + xcb_generic_error_t *error = (xcb_generic_error_t *) ev; + + fprintf (stderr, + "Detected error during xcb run: error=%d, " + "seqno=0x%02x, major=%d, minor=%d\n", + error->error_code, error->sequence, + error->major_code, error->minor_code); + } else { + fprintf (stderr, + "Detected unexpected event during xcb run: type=%d, seqno=0x%02x\n", + ev->response_type, ev->sequence); + } + free (ev); + + /* Silently discard all following errors */ + while ((ev = xcb_poll_for_event (xtc->c)) != NULL) + free (ev); + + return CAIRO_STATUS_WRITE_ERROR; + } + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_boilerplate_xcb_sync_server (xcb_target_closure_t *xtc) +{ + free (xcb_get_input_focus_reply (xtc->c, + xcb_get_input_focus (xtc->c), NULL)); +} + +static void +_cairo_boilerplate_xcb_setup_test_surface (cairo_surface_t *surface) +{ + + /* For testing purposes, tell the X server to strictly adhere to the + * Render specification. + */ + cairo_xcb_device_debug_set_precision(cairo_surface_get_device(surface), + XCB_RENDER_POLY_MODE_PRECISE); +} + +static void +_cairo_boilerplate_xcb_cleanup (void *closure) +{ + xcb_target_closure_t *xtc = closure; + cairo_status_t status; + + cairo_surface_finish (xtc->surface); + if (xtc->is_pixmap) + xcb_free_pixmap (xtc->c, xtc->drawable); + else + xcb_destroy_window (xtc->c, xtc->drawable); + cairo_surface_destroy (xtc->surface); + + cairo_device_finish (xtc->device); + cairo_device_destroy (xtc->device); + + /* First synchronize with the X server to make sure there are no more errors + * in-flight which we would miss otherwise */ + _cairo_boilerplate_xcb_sync_server (xtc); + status = _cairo_boilerplate_xcb_handle_errors (xtc); + assert (status == CAIRO_STATUS_SUCCESS); + + xcb_disconnect (xtc->c); + + free (xtc); +} + +static void +_cairo_boilerplate_xcb_synchronize (void *closure) +{ + xcb_target_closure_t *xtc = closure; + cairo_status_t status; + free (xcb_get_image_reply (xtc->c, + xcb_get_image (xtc->c, XCB_IMAGE_FORMAT_Z_PIXMAP, + xtc->drawable, 0, 0, 1, 1, /* AllPlanes */ -1), + 0)); + + status = _cairo_boilerplate_xcb_handle_errors (xtc); + assert (status == CAIRO_STATUS_SUCCESS); +} + +static xcb_render_pictforminfo_t * +find_depth (xcb_connection_t *connection, + int depth, + void **formats_out) +{ + xcb_render_query_pict_formats_reply_t *formats; + xcb_render_query_pict_formats_cookie_t cookie; + xcb_render_pictforminfo_iterator_t i; + + cookie = xcb_render_query_pict_formats (connection); + xcb_flush (connection); + + formats = xcb_render_query_pict_formats_reply (connection, cookie, 0); + if (formats == NULL) + return NULL; + + for (i = xcb_render_query_pict_formats_formats_iterator (formats); + i.rem; + xcb_render_pictforminfo_next (&i)) + { + if (XCB_RENDER_PICT_TYPE_DIRECT != i.data->type) + continue; + + if (depth != i.data->depth) + continue; + + *formats_out = formats; + return i.data; + } + + free (formats); + return NULL; +} + +static const cairo_user_data_key_t key; +static const cairo_user_data_key_t key2; + +struct similar { + xcb_connection_t *connection; + xcb_drawable_t pixmap; +}; + +static void _destroy_similar (void *closure) +{ + struct similar *similar = closure; + + xcb_free_pixmap (similar->connection, similar->pixmap); + free (similar); +} + +struct xcb_info { + xcb_render_query_pict_formats_reply_t *formats; + xcb_render_pictforminfo_t *render_format[3]; +}; + +static cairo_surface_t * +_cairo_boilerplate_xcb_create_similar (cairo_surface_t *other, + cairo_content_t content, + int width, int height) +{ + cairo_device_t *device = cairo_surface_get_device (other); + struct xcb_info *info = cairo_device_get_user_data (device, &key); + xcb_screen_t *root; + cairo_surface_t *surface; + struct similar *similar; + xcb_render_pictforminfo_t *render_format; + int depth; + + similar = _cairo_malloc (sizeof (*similar)); + + switch (content) { + default: + case CAIRO_CONTENT_COLOR_ALPHA: + depth = 32; + render_format = info->render_format[0]; + break; + case CAIRO_CONTENT_COLOR: + depth = 24; + render_format = info->render_format[1]; + break; + case CAIRO_CONTENT_ALPHA: + depth = 8; + render_format = info->render_format[2]; + break; + } + + similar->connection = + cairo_xcb_device_get_connection (cairo_surface_get_device(other)); + similar->pixmap = xcb_generate_id (similar->connection); + + root = xcb_setup_roots_iterator(xcb_get_setup(similar->connection)).data; + xcb_create_pixmap (similar->connection, depth, + similar->pixmap, root->root, + width, height); + + surface = cairo_xcb_surface_create_with_xrender_format (similar->connection, + root, + similar->pixmap, + render_format, + width, height); + cairo_surface_set_user_data (surface, &key, similar, _destroy_similar); + + return surface; +} + +static cairo_surface_t * +_cairo_boilerplate_xcb_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + xcb_screen_t *root; + xcb_target_closure_t *xtc; + xcb_connection_t *c; + xcb_render_query_pict_formats_cookie_t formats_cookie; + xcb_render_pictforminfo_t *render_format; + xcb_render_pictforminfo_iterator_t i; + struct xcb_info *info; + int depth; + xcb_void_cookie_t cookie; + cairo_surface_t *surface; + cairo_status_t status; + + *closure = xtc = xmalloc (sizeof (xcb_target_closure_t)); + info = xcalloc (1, sizeof (struct xcb_info)); + + if (width == 0) + width = 1; + if (height == 0) + height = 1; + + xtc->c = c = xcb_connect(NULL,NULL); + if (c == NULL || xcb_connection_has_error(c)) { + free (xtc); + free (info); + return NULL; + } + + root = xcb_setup_roots_iterator(xcb_get_setup(c)).data; + formats_cookie = xcb_render_query_pict_formats (c); + + xtc->surface = NULL; + xtc->is_pixmap = TRUE; + xtc->drawable = xcb_generate_id (c); + switch (content) { + case CAIRO_CONTENT_COLOR: + depth = 24; + break; + + case CAIRO_CONTENT_COLOR_ALPHA: + depth = 32; + break; + + case CAIRO_CONTENT_ALPHA: /* would be XCB_PICT_STANDARD_A_8 */ + default: + xcb_disconnect (c); + free (xtc); + return NULL; + } + + cookie = xcb_create_pixmap_checked (c, depth, + xtc->drawable, root->root, + width, height); + + /* slow, but sure */ + if (xcb_request_check (c, cookie) != NULL) { + xcb_disconnect (c); + free (xtc); + free (info); + return NULL; + } + + info->formats = xcb_render_query_pict_formats_reply (c, formats_cookie, 0); + if (info->formats == NULL) { + xcb_disconnect (c); + free (xtc); + free (info); + return NULL; + } + + for (i = xcb_render_query_pict_formats_formats_iterator (info->formats); + i.rem; + xcb_render_pictforminfo_next (&i)) + { + if (XCB_RENDER_PICT_TYPE_DIRECT != i.data->type) + continue; + + if (i.data->depth == 32) { + if (info->render_format[0] == 0) + info->render_format[0] = i.data; + } else if (i.data->depth == 24) { + if (info->render_format[1] == 0) + info->render_format[1] = i.data; + } else if (i.data->depth == 8) { + if (info->render_format[2] == 0) + info->render_format[2] = i.data; + } + } + + assert (info->render_format[0]); + assert (info->render_format[1]); + assert (info->render_format[2]); + + switch (content) { + default: + case CAIRO_CONTENT_COLOR_ALPHA: + render_format = info->render_format[0]; + break; + + case CAIRO_CONTENT_COLOR: + render_format = info->render_format[1]; + break; + + case CAIRO_CONTENT_ALPHA: /* would be XCB_PICT_STANDARD_A_8 */ + render_format = info->render_format[2]; + break; + } + + surface = cairo_xcb_surface_create_with_xrender_format (c, root, + xtc->drawable, + render_format, + width, height); + cairo_device_set_user_data (cairo_surface_get_device (surface), &key, info, free); + cairo_device_set_user_data (cairo_surface_get_device (surface), &key2, info->formats, free); + if (mode != CAIRO_BOILERPLATE_MODE_PERF) + _cairo_boilerplate_xcb_setup_test_surface(surface); + + xtc->device = cairo_device_reference (cairo_surface_get_device (surface)); + status = cairo_surface_set_user_data (surface, &xcb_closure_key, xtc, NULL); + if (status == CAIRO_STATUS_SUCCESS) + return surface; + + cairo_surface_destroy (surface); + + _cairo_boilerplate_xcb_cleanup (xtc); + return cairo_boilerplate_surface_create_in_error (status); +} + +static xcb_visualtype_t * +lookup_visual (xcb_screen_t *s, + xcb_visualid_t visual) +{ + xcb_depth_iterator_t d; + + d = xcb_screen_allowed_depths_iterator (s); + for (; d.rem; xcb_depth_next (&d)) { + xcb_visualtype_iterator_t v = xcb_depth_visuals_iterator (d.data); + for (; v.rem; xcb_visualtype_next (&v)) { + if (v.data->visual_id == visual) + return v.data; + } + } + + return 0; +} + +static cairo_surface_t * +_cairo_boilerplate_xcb_create_window (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + xcb_target_closure_t *xtc; + xcb_connection_t *c; + xcb_screen_t *s; + xcb_void_cookie_t cookie; + cairo_surface_t *surface; + cairo_status_t status; + uint32_t values[] = { 1 }; + + *closure = xtc = xmalloc (sizeof (xcb_target_closure_t)); + + if (width == 0) + width = 1; + if (height == 0) + height = 1; + + xtc->c = c = xcb_connect(NULL,NULL); + if (xcb_connection_has_error(c)) { + free (xtc); + return NULL; + } + + xtc->surface = NULL; + + s = xcb_setup_roots_iterator (xcb_get_setup (c)).data; + if (width > s->width_in_pixels || height > s->height_in_pixels) { + xcb_disconnect (c); + free (xtc); + return NULL; + } + + xtc->is_pixmap = FALSE; + xtc->drawable = xcb_generate_id (c); + cookie = xcb_create_window_checked (c, + s->root_depth, + xtc->drawable, + s->root, + 0, 0, width, height, 0, + XCB_WINDOW_CLASS_INPUT_OUTPUT, + s->root_visual, + XCB_CW_OVERRIDE_REDIRECT, + values); + xcb_map_window (c, xtc->drawable); + + /* slow, but sure */ + if (xcb_request_check (c, cookie) != NULL) { + xcb_disconnect (c); + free (xtc); + return NULL; + } + + surface = cairo_xcb_surface_create (c, + xtc->drawable, + lookup_visual (s, s->root_visual), + width, height); + + xtc->device = cairo_device_reference (cairo_surface_get_device (surface)); + status = cairo_surface_set_user_data (surface, &xcb_closure_key, xtc, NULL); + if (status == CAIRO_STATUS_SUCCESS) + return surface; + + cairo_surface_destroy (surface); + + _cairo_boilerplate_xcb_cleanup (xtc); + return cairo_boilerplate_surface_create_in_error (status); +} + +static cairo_surface_t * +_cairo_boilerplate_xcb_create_window_db (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + xcb_target_closure_t *xtc; + xcb_connection_t *c; + xcb_screen_t *s; + xcb_void_cookie_t cookie; + cairo_surface_t *surface; + cairo_status_t status; + uint32_t values[] = { 1 }; + + *closure = xtc = xmalloc (sizeof (xcb_target_closure_t)); + + if (width == 0) + width = 1; + if (height == 0) + height = 1; + + xtc->c = c = xcb_connect(NULL,NULL); + if (xcb_connection_has_error(c)) { + free (xtc); + return NULL; + } + + xtc->surface = NULL; + + s = xcb_setup_roots_iterator (xcb_get_setup (c)).data; + if (width > s->width_in_pixels || height > s->height_in_pixels) { + xcb_disconnect (c); + free (xtc); + return NULL; + } + + xtc->is_pixmap = FALSE; + xtc->drawable = xcb_generate_id (c); + cookie = xcb_create_window_checked (c, + s->root_depth, + xtc->drawable, + s->root, + 0, 0, width, height, 0, + XCB_WINDOW_CLASS_INPUT_OUTPUT, + s->root_visual, + XCB_CW_OVERRIDE_REDIRECT, + values); + xcb_map_window (c, xtc->drawable); + + /* slow, but sure */ + if (xcb_request_check (c, cookie) != NULL) { + xcb_disconnect (c); + free (xtc); + return NULL; + } + + xtc->surface = cairo_xcb_surface_create (c, + xtc->drawable, + lookup_visual (s, s->root_visual), + width, height); + surface = cairo_surface_create_similar (xtc->surface, content, width, height); + + xtc->device = cairo_device_reference (cairo_surface_get_device (surface)); + status = cairo_surface_set_user_data (surface, &xcb_closure_key, xtc, NULL); + if (status == CAIRO_STATUS_SUCCESS) + return surface; + + cairo_surface_destroy (surface); + + _cairo_boilerplate_xcb_cleanup (xtc); + return cairo_boilerplate_surface_create_in_error (status); +} + +static cairo_surface_t * +_cairo_boilerplate_xcb_create_render_0_0 (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + xcb_screen_t *root; + xcb_target_closure_t *xtc; + xcb_connection_t *c; + xcb_render_pictforminfo_t *render_format; + int depth; + xcb_void_cookie_t cookie; + cairo_surface_t *surface; + cairo_status_t status; + void *formats; + + *closure = xtc = xmalloc (sizeof (xcb_target_closure_t)); + + if (width == 0) + width = 1; + if (height == 0) + height = 1; + + xtc->c = c = xcb_connect(NULL,NULL); + if (xcb_connection_has_error(c)) { + free (xtc); + return NULL; + } + + root = xcb_setup_roots_iterator(xcb_get_setup(c)).data; + + xtc->surface = NULL; + xtc->is_pixmap = TRUE; + xtc->drawable = xcb_generate_id (c); + switch (content) { + case CAIRO_CONTENT_COLOR: + depth = 24; + cookie = xcb_create_pixmap_checked (c, depth, + xtc->drawable, root->root, + width, height); + break; + + case CAIRO_CONTENT_COLOR_ALPHA: + depth = 32; + cookie = xcb_create_pixmap_checked (c, depth, + xtc->drawable, root->root, + width, height); + break; + + case CAIRO_CONTENT_ALPHA: /* would be XCB_PICT_STANDARD_A_8 */ + default: + xcb_disconnect (c); + free (xtc); + return NULL; + } + + /* slow, but sure */ + if (xcb_request_check (c, cookie) != NULL) { + xcb_disconnect (c); + free (xtc); + return NULL; + } + xcb_flush (c); + + render_format = find_depth (c, depth, &formats); + if (render_format == NULL) { + xcb_disconnect (c); + free (xtc); + return NULL; + } + + surface = cairo_xcb_surface_create_with_xrender_format (c, root, + xtc->drawable, + render_format, + width, height); + free (formats); + if (cairo_surface_status (surface)) { + xcb_disconnect (c); + free (xtc); + return surface; + } + + xtc->device = cairo_device_reference (cairo_surface_get_device (surface)); + cairo_xcb_device_debug_cap_xrender_version (xtc->device, 0, 0); + + assert (cairo_surface_get_device (surface) == xtc->device); + + status = cairo_surface_set_user_data (surface, &xcb_closure_key, xtc, NULL); + if (status == CAIRO_STATUS_SUCCESS) + return surface; + + cairo_surface_destroy (surface); + + _cairo_boilerplate_xcb_cleanup (xtc); + return cairo_boilerplate_surface_create_in_error (status); +} + +static cairo_surface_t * +_cairo_boilerplate_xcb_create_fallback (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + xcb_target_closure_t *xtc; + xcb_connection_t *c; + xcb_screen_t *s; + xcb_void_cookie_t cookie; + cairo_surface_t *surface; + cairo_status_t status; + uint32_t values[] = { 1 }; + + *closure = xtc = xmalloc (sizeof (xcb_target_closure_t)); + + if (width == 0) + width = 1; + if (height == 0) + height = 1; + + xtc->c = c = xcb_connect (NULL,NULL); + if (xcb_connection_has_error(c)) { + free (xtc); + return NULL; + } + + s = xcb_setup_roots_iterator (xcb_get_setup (c)).data; + if (width > s->width_in_pixels || height > s->height_in_pixels) { + xcb_disconnect (c); + free (xtc); + return NULL; + } + + xtc->surface = NULL; + xtc->is_pixmap = FALSE; + xtc->drawable = xcb_generate_id (c); + cookie = xcb_create_window_checked (c, + s->root_depth, + xtc->drawable, + s->root, + 0, 0, width, height, 0, + XCB_WINDOW_CLASS_INPUT_OUTPUT, + s->root_visual, + XCB_CW_OVERRIDE_REDIRECT, + values); + xcb_map_window (c, xtc->drawable); + + /* slow, but sure */ + if (xcb_request_check (c, cookie) != NULL) { + xcb_disconnect (c); + free (xtc); + return NULL; + } + + surface = cairo_xcb_surface_create (c, + xtc->drawable, + lookup_visual (s, s->root_visual), + width, height); + if (cairo_surface_status (surface)) { + xcb_disconnect (c); + free (xtc); + return surface; + } + + cairo_xcb_device_debug_cap_xrender_version (cairo_surface_get_device (surface), + -1, -1); + + xtc->device = cairo_device_reference (cairo_surface_get_device (surface)); + status = cairo_surface_set_user_data (surface, &xcb_closure_key, xtc, NULL); + if (status == CAIRO_STATUS_SUCCESS) + return surface; + + cairo_surface_destroy (surface); + + _cairo_boilerplate_xcb_cleanup (xtc); + return cairo_boilerplate_surface_create_in_error (status); +} + +static cairo_status_t +_cairo_boilerplate_xcb_finish_surface (cairo_surface_t *surface) +{ + xcb_target_closure_t *xtc = cairo_surface_get_user_data (surface, + &xcb_closure_key); + cairo_status_t status; + + if (xtc->surface != NULL) { + cairo_t *cr; + + cr = cairo_create (xtc->surface); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + cairo_destroy (cr); + + surface = xtc->surface; + } + + cairo_surface_flush (surface); + if (cairo_surface_status (surface)) + return cairo_surface_status (surface); + + /* First synchronize with the X server to make sure there are no more errors + * in-flight which we would miss otherwise */ + _cairo_boilerplate_xcb_sync_server (xtc); + status = _cairo_boilerplate_xcb_handle_errors (xtc); + if (status) + return status; + + if (xcb_connection_has_error (xtc->c)) + return CAIRO_STATUS_WRITE_ERROR; + + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_boilerplate_target_t targets[] = { + /* Acceleration architectures may make the results differ by a + * bit, so we set the error tolerance to 1. */ + { + "xcb", "traps", NULL, NULL, + CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR_ALPHA, 1, + "cairo_xcb_surface_create_with_xrender_format", + _cairo_boilerplate_xcb_create_surface, + _cairo_boilerplate_xcb_create_similar, + NULL, + _cairo_boilerplate_xcb_finish_surface, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_xcb_cleanup, + _cairo_boilerplate_xcb_synchronize, + NULL, + TRUE, FALSE, FALSE + }, + { + "xcb", "traps", NULL, NULL, + CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR, 1, + "cairo_xcb_surface_create_with_xrender_format", + _cairo_boilerplate_xcb_create_surface, + _cairo_boilerplate_xcb_create_similar, + NULL, + _cairo_boilerplate_xcb_finish_surface, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_xcb_cleanup, + _cairo_boilerplate_xcb_synchronize, + NULL, + FALSE, FALSE, FALSE + }, + { + "xcb-window", "traps", NULL, NULL, + CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR, 1, + "cairo_xcb_surface_create_with_xrender_format", + _cairo_boilerplate_xcb_create_window, + _cairo_boilerplate_xcb_create_similar, + NULL, + _cairo_boilerplate_xcb_finish_surface, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_xcb_cleanup, + _cairo_boilerplate_xcb_synchronize, + NULL, + FALSE, FALSE, FALSE + }, + { + "xcb-window&", "traps", NULL, NULL, + CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR, 1, + "cairo_xcb_surface_create_with_xrender_format", + _cairo_boilerplate_xcb_create_window_db, + _cairo_boilerplate_xcb_create_similar, + NULL, + _cairo_boilerplate_xcb_finish_surface, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_xcb_cleanup, + _cairo_boilerplate_xcb_synchronize, + NULL, + FALSE, FALSE, FALSE + }, + { + "xcb-render-0_0", "xlib-fallback", NULL, NULL, + CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR_ALPHA, 1, + "cairo_xcb_surface_create_with_xrender_format", + _cairo_boilerplate_xcb_create_render_0_0, + cairo_surface_create_similar, + NULL, + _cairo_boilerplate_xcb_finish_surface, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_xcb_cleanup, + _cairo_boilerplate_xcb_synchronize, + NULL, + FALSE, FALSE, FALSE + }, + { + "xcb-render-0_0", "xlib-fallback", NULL, NULL, + CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR, 1, + "cairo_xcb_surface_create_with_xrender_format", + _cairo_boilerplate_xcb_create_render_0_0, + cairo_surface_create_similar, + NULL, + _cairo_boilerplate_xcb_finish_surface, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_xcb_cleanup, + _cairo_boilerplate_xcb_synchronize, + NULL, + FALSE, FALSE, FALSE + }, + { + "xcb-fallback", "xlib-fallback", NULL, NULL, + CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR, 1, + "cairo_xcb_surface_create_with_xrender_format", + _cairo_boilerplate_xcb_create_fallback, + cairo_surface_create_similar, + NULL, + _cairo_boilerplate_xcb_finish_surface, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_xcb_cleanup, + _cairo_boilerplate_xcb_synchronize, + NULL, + FALSE, FALSE, FALSE + }, +}; +CAIRO_BOILERPLATE (xcb, targets) diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-xlib.c b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-xlib.c new file mode 100644 index 0000000000..5d2498ccd8 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-xlib.c @@ -0,0 +1,639 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2004,2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-boilerplate-private.h" +#include "cairo-boilerplate-xlib.h" +#include "cairo-malloc-private.h" + +#include +#if CAIRO_HAS_XLIB_XRENDER_SURFACE +#include +#endif + +#include /* for XDestroyImage */ + +#if !CAIRO_HAS_XLIB_XRENDER_SURFACE +#define PolyModePrecise 0 +#endif + +static const cairo_user_data_key_t key; + +typedef struct _xlib_target_closure { + Display *dpy; + Drawable drawable; + cairo_bool_t drawable_is_pixmap; +} xlib_target_closure_t; + +static void +_cairo_boilerplate_xlib_cleanup (void *closure) +{ + xlib_target_closure_t *xtc = closure; + + if (xtc->drawable) { + if (xtc->drawable_is_pixmap) + XFreePixmap (xtc->dpy, xtc->drawable); + else + XDestroyWindow (xtc->dpy, xtc->drawable); + } + XCloseDisplay (xtc->dpy); + free (xtc); +} + +static void +_cairo_boilerplate_xlib_synchronize (void *closure) +{ + xlib_target_closure_t *xtc = closure; + XImage *ximage; + + ximage = XGetImage (xtc->dpy, xtc->drawable, + 0, 0, 1, 1, AllPlanes, ZPixmap); + if (ximage != NULL) + XDestroyImage (ximage); +} + +static cairo_bool_t +_cairo_boilerplate_xlib_check_screen_size (Display *dpy, + int screen, + int width, + int height) +{ + Screen *scr = XScreenOfDisplay (dpy, screen); + return width <= WidthOfScreen (scr) && height <= HeightOfScreen (scr); +} + +static void +_cairo_boilerplate_xlib_setup_test_surface (cairo_surface_t *surface) +{ + + /* For testing purposes, tell the X server to strictly adhere to the + * Render specification. + */ + cairo_xlib_device_debug_set_precision(cairo_surface_get_device(surface), + PolyModePrecise); +} + + +#if CAIRO_HAS_XLIB_XRENDER_SURFACE +/* For the xlib backend we distinguish between TEST and PERF mode in a + * couple of ways. + * + * For TEST, we always test against pixmaps of depth 32 (for + * COLOR_ALPHA) or 24 (for COLOR) and we use XSynchronize to make it + * easier to debug problems. + * + * For PERF, we test against 32-bit pixmaps for COLOR_ALPHA, but for + * COLOR we test against _windows_ at the depth of the default visual. + * For obvious reasons, we don't use XSynchronize. + */ +static cairo_surface_t * +_cairo_boilerplate_xlib_test_create_surface (Display *dpy, + cairo_content_t content, + int width, + int height, + xlib_target_closure_t *xtc) +{ + XRenderPictFormat *xrender_format; + cairo_surface_t *surface; + + /* This kills performance, but it makes debugging much + * easier. That's why we have it here when in TEST mode, but not + * over in PERF mode. */ + XSynchronize (xtc->dpy, 1); + + /* XXX: Currently we don't do any xlib testing when the X server + * doesn't have the Render extension. We could do better here, + * (perhaps by converting the tests from ARGB32 to RGB24). One + * step better would be to always test the non-Render fallbacks + * for each test even if the server does have the Render + * extension. That would probably be through another + * cairo_boilerplate_target which would use an extended version of + * cairo_test_xlib_disable_render. */ + switch (content) { + case CAIRO_CONTENT_COLOR_ALPHA: + xrender_format = XRenderFindStandardFormat (dpy, PictStandardARGB32); + break; + case CAIRO_CONTENT_COLOR: + xrender_format = XRenderFindStandardFormat (dpy, PictStandardRGB24); + break; + case CAIRO_CONTENT_ALPHA: + default: + CAIRO_BOILERPLATE_DEBUG (("Invalid content for xlib test: %d\n", content)); + return NULL; + } + if (xrender_format == NULL) { + CAIRO_BOILERPLATE_DEBUG (("X server does not have the Render extension.\n")); + return NULL; + } + + xtc->drawable = XCreatePixmap (dpy, DefaultRootWindow (dpy), + width, height, xrender_format->depth); + xtc->drawable_is_pixmap = TRUE; + + surface = cairo_xlib_surface_create_with_xrender_format (dpy, xtc->drawable, + DefaultScreenOfDisplay (dpy), + xrender_format, + width, height); + + _cairo_boilerplate_xlib_setup_test_surface(surface); + + return surface; +} + +static cairo_surface_t * +_cairo_boilerplate_xlib_perf_create_surface (Display *dpy, + cairo_content_t content, + int width, + int height, + xlib_target_closure_t *xtc) +{ + XSetWindowAttributes attr; + XRenderPictFormat *xrender_format; + Visual *visual; + + switch (content) { + case CAIRO_CONTENT_COLOR_ALPHA: + xrender_format = XRenderFindStandardFormat (dpy, PictStandardARGB32); + if (xrender_format == NULL) { + CAIRO_BOILERPLATE_DEBUG (("X server does not have the Render extension.\n")); + return NULL; + } + + xtc->drawable = XCreatePixmap (dpy, DefaultRootWindow (dpy), + width, height, xrender_format->depth); + xtc->drawable_is_pixmap = TRUE; + break; + + case CAIRO_CONTENT_COLOR: + if (! _cairo_boilerplate_xlib_check_screen_size (dpy, + DefaultScreen (dpy), + width, height)) { + CAIRO_BOILERPLATE_DEBUG (("Surface is larger than the Screen.\n")); + return NULL; + } + + visual = DefaultVisual (dpy, DefaultScreen (dpy)); + xrender_format = XRenderFindVisualFormat (dpy, visual); + if (xrender_format == NULL) { + CAIRO_BOILERPLATE_DEBUG (("X server does not have the Render extension.\n")); + return NULL; + } + + attr.override_redirect = True; + xtc->drawable = XCreateWindow (dpy, DefaultRootWindow (dpy), 0, 0, + width, height, 0, xrender_format->depth, + InputOutput, visual, CWOverrideRedirect, &attr); + XMapWindow (dpy, xtc->drawable); + xtc->drawable_is_pixmap = FALSE; + break; + + case CAIRO_CONTENT_ALPHA: + default: + CAIRO_BOILERPLATE_DEBUG (("Invalid content for xlib test: %d\n", content)); + return NULL; + } + + return cairo_xlib_surface_create_with_xrender_format (dpy, xtc->drawable, + DefaultScreenOfDisplay (dpy), + xrender_format, + width, height); +} + +struct similar { + Display *dpy; + Pixmap pixmap; +}; + +static void _destroy_similar (void *closure) +{ + struct similar *similar = closure; + + XFreePixmap (similar->dpy, similar->pixmap); + free (similar); +} + +static cairo_surface_t * +_cairo_boilerplate_xlib_create_similar (cairo_surface_t *other, + cairo_content_t content, + int width, + int height) +{ + XRenderPictFormat *xrender_format; + uint32_t format; + struct similar *similar; + cairo_surface_t *surface; + + similar = _cairo_malloc (sizeof (*similar)); + similar->dpy = cairo_xlib_surface_get_display (other); + + switch (content) { + case CAIRO_CONTENT_COLOR: + format = PictStandardRGB24; + break; + case CAIRO_CONTENT_ALPHA: + format = PictStandardA8; + break; + case CAIRO_CONTENT_COLOR_ALPHA: + default: + format = PictStandardARGB32; + break; + } + + xrender_format = XRenderFindStandardFormat (similar->dpy, format); + similar->pixmap = XCreatePixmap (similar->dpy, + DefaultRootWindow (similar->dpy), + width, height, + xrender_format->depth); + + surface = + cairo_xlib_surface_create_with_xrender_format (similar->dpy, + similar->pixmap, + DefaultScreenOfDisplay (similar->dpy), + xrender_format, + width, height); + + cairo_surface_set_user_data (surface, &key, similar, _destroy_similar); + + return surface; +} + +static cairo_surface_t * +_cairo_boilerplate_xlib_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + xlib_target_closure_t *xtc; + Display *dpy; + cairo_surface_t *surface; + + *closure = xtc = xcalloc (1, sizeof (xlib_target_closure_t)); + + width = ceil (width); + if (width < 1) + width = 1; + + height = ceil (height); + if (height < 1) + height = 1; + + xtc->dpy = dpy = XOpenDisplay (NULL); + if (xtc->dpy == NULL) { + free (xtc); + CAIRO_BOILERPLATE_DEBUG (("Failed to open display: %s\n", XDisplayName(0))); + return NULL; + } + + if (mode == CAIRO_BOILERPLATE_MODE_TEST) + surface = _cairo_boilerplate_xlib_test_create_surface (dpy, content, width, height, xtc); + else /* mode == CAIRO_BOILERPLATE_MODE_PERF */ + surface = _cairo_boilerplate_xlib_perf_create_surface (dpy, content, width, height, xtc); + + if (surface == NULL || cairo_surface_status (surface)) + _cairo_boilerplate_xlib_cleanup (xtc); + + return surface; +} + +static cairo_surface_t * +_cairo_boilerplate_xlib_render_0_0_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + xlib_target_closure_t *xtc; + Display *dpy; + int screen; + Pixmap pixmap; + cairo_surface_t *surface, *dummy; + + *closure = xtc = xcalloc (1, sizeof (xlib_target_closure_t)); + + width = ceil (width); + if (width < 1) + width = 1; + + height = ceil (height); + if (height < 1) + height = 1; + + xtc->dpy = dpy = XOpenDisplay (NULL); + if (xtc->dpy == NULL) { + free (xtc); + CAIRO_BOILERPLATE_DEBUG (("Failed to open display: %s\n", XDisplayName(0))); + return NULL; + } + + + screen = DefaultScreen (dpy); + pixmap = XCreatePixmap (dpy, DefaultRootWindow (dpy), 1, 1, + DefaultDepth (dpy, screen)); + dummy = cairo_xlib_surface_create (dpy, pixmap, + DefaultVisual (dpy, screen), + 1, 1); + cairo_xlib_device_debug_cap_xrender_version (cairo_surface_get_device (dummy), + 0, 0); + + if (mode == CAIRO_BOILERPLATE_MODE_TEST) + surface = _cairo_boilerplate_xlib_test_create_surface (dpy, content, width, height, xtc); + else /* mode == CAIRO_BOILERPLATE_MODE_PERF */ + surface = _cairo_boilerplate_xlib_perf_create_surface (dpy, content, width, height, xtc); + + cairo_surface_destroy (dummy); + XFreePixmap (dpy, pixmap); + + if (surface == NULL || cairo_surface_status (surface)) + _cairo_boilerplate_xlib_cleanup (xtc); + + return surface; +} + +static cairo_surface_t * +_cairo_boilerplate_xlib_window_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + xlib_target_closure_t *xtc; + Display *dpy; + int screen; + XSetWindowAttributes attr; + cairo_surface_t *surface; + + /* We're not yet bothering to support perf mode for the + * xlib-fallback surface. */ + if (mode == CAIRO_BOILERPLATE_MODE_PERF) + return NULL; + + /* We also don't support drawing with destination-alpha in the + * xlib-fallback surface. */ + if (content == CAIRO_CONTENT_COLOR_ALPHA) + return NULL; + + *closure = xtc = xmalloc (sizeof (xlib_target_closure_t)); + + width = ceil (width); + if (width < 1) + width = 1; + + height = ceil (height); + if (height < 1) + height = 1; + + xtc->dpy = dpy = XOpenDisplay (NULL); + if (xtc->dpy == NULL) { + CAIRO_BOILERPLATE_DEBUG (("Failed to open display: %s\n", XDisplayName(0))); + free (xtc); + return NULL; + } + + /* This kills performance, but it makes debugging much + * easier. That's why we have it here only after explicitly not + * supporting PERF mode.*/ + XSynchronize (dpy, 1); + + screen = DefaultScreen (dpy); + if (! _cairo_boilerplate_xlib_check_screen_size (dpy, screen, + width, height)) { + CAIRO_BOILERPLATE_DEBUG (("Surface is larger than the Screen.\n")); + XCloseDisplay (dpy); + free (xtc); + return NULL; + } + + attr.override_redirect = True; + xtc->drawable = XCreateWindow (dpy, DefaultRootWindow (dpy), + 0, 0, + width, height, 0, + DefaultDepth (dpy, screen), + InputOutput, + DefaultVisual (dpy, screen), + CWOverrideRedirect, &attr); + XMapWindow (dpy, xtc->drawable); + xtc->drawable_is_pixmap = FALSE; + + surface = cairo_xlib_surface_create (dpy, xtc->drawable, + DefaultVisual (dpy, screen), + width, height); + if (cairo_surface_status (surface)) + _cairo_boilerplate_xlib_cleanup (xtc); + + _cairo_boilerplate_xlib_setup_test_surface(surface); + + return surface; +} +#endif + + +#if CAIRO_HAS_XLIB_SURFACE +/* The xlib-fallback target differs from the xlib target in two ways: + * + * 1. It creates its surfaces without relying on the Render extension + * + * 2. It disables use of the Render extension for its surfaces + * + * This provides testing of the non-Render fallback paths we have in + * cairo-xlib-surface.c + */ +static cairo_surface_t * +_cairo_boilerplate_xlib_fallback_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + xlib_target_closure_t *xtc; + Display *dpy; + int screen; + XSetWindowAttributes attr; + cairo_surface_t *surface, *dummy; + + /* We're not yet bothering to support perf mode for the + * xlib-fallback surface. */ + if (mode == CAIRO_BOILERPLATE_MODE_PERF) + return NULL; + + /* We also don't support drawing with destination-alpha in the + * xlib-fallback surface. */ + if (content == CAIRO_CONTENT_COLOR_ALPHA) + return NULL; + + *closure = xtc = xmalloc (sizeof (xlib_target_closure_t)); + + width = ceil (width); + if (width < 1) + width = 1; + + height = ceil (height); + if (height < 1) + height = 1; + + xtc->dpy = dpy = XOpenDisplay (NULL); + if (xtc->dpy == NULL) { + CAIRO_BOILERPLATE_DEBUG (("Failed to open display: %s\n", XDisplayName(0))); + free (xtc); + return NULL; + } + + /* This kills performance, but it makes debugging much + * easier. That's why we have it here only after explicitly not + * supporting PERF mode.*/ + XSynchronize (dpy, 1); + + screen = DefaultScreen (dpy); + if (! _cairo_boilerplate_xlib_check_screen_size (dpy, screen, + width, height)) { + CAIRO_BOILERPLATE_DEBUG (("Surface is larger than the Screen.\n")); + XCloseDisplay (dpy); + free (xtc); + return NULL; + } + + attr.override_redirect = True; + xtc->drawable = XCreateWindow (dpy, DefaultRootWindow (dpy), + 0, 0, + width, height, 0, + DefaultDepth (dpy, screen), + InputOutput, + DefaultVisual (dpy, screen), + CWOverrideRedirect, &attr); + XMapWindow (dpy, xtc->drawable); + xtc->drawable_is_pixmap = FALSE; + + dummy = cairo_xlib_surface_create (dpy, xtc->drawable, + DefaultVisual (dpy, screen), + width, height); + cairo_xlib_device_debug_cap_xrender_version (cairo_surface_get_device (dummy), + -1, -1); + + surface = cairo_xlib_surface_create (dpy, xtc->drawable, + DefaultVisual (dpy, screen), + width, height); + cairo_surface_destroy (dummy); + if (cairo_surface_status (surface)) + _cairo_boilerplate_xlib_cleanup (xtc); + + _cairo_boilerplate_xlib_setup_test_surface(surface); + + return surface; +} +#endif + +static const cairo_boilerplate_target_t targets[] = { +#if CAIRO_HAS_XLIB_XRENDER_SURFACE + /* Acceleration architectures may make the results differ by a + * bit, so we set the error tolerance to 1. */ + { + "xlib", "traps", NULL, "xlib-fallback", + CAIRO_SURFACE_TYPE_XLIB, CAIRO_CONTENT_COLOR_ALPHA, 1, + "cairo_xlib_surface_create_with_xrender_format", + _cairo_boilerplate_xlib_create_surface, + _cairo_boilerplate_xlib_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_xlib_cleanup, + _cairo_boilerplate_xlib_synchronize, + NULL, + TRUE, FALSE, FALSE + }, + { + "xlib", "traps", NULL, "xlib-fallback", + CAIRO_SURFACE_TYPE_XLIB, CAIRO_CONTENT_COLOR, 1, + "cairo_xlib_surface_create_with_xrender_format", + _cairo_boilerplate_xlib_create_surface, + _cairo_boilerplate_xlib_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_xlib_cleanup, + _cairo_boilerplate_xlib_synchronize, + NULL, + FALSE, FALSE, FALSE + }, + { + "xlib-window", "traps", NULL, NULL, + CAIRO_SURFACE_TYPE_XLIB, CAIRO_CONTENT_COLOR, 1, + "cairo_xlib_surface_create", + _cairo_boilerplate_xlib_window_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_xlib_cleanup, + _cairo_boilerplate_xlib_synchronize, + NULL, + FALSE, FALSE, FALSE + }, + { + "xlib-render-0_0", "mask", NULL, NULL, + CAIRO_SURFACE_TYPE_XLIB, CAIRO_CONTENT_COLOR, 1, + "cairo_xlib_surface_create", + _cairo_boilerplate_xlib_render_0_0_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_xlib_cleanup, + _cairo_boilerplate_xlib_synchronize, + NULL, + FALSE, FALSE, FALSE + }, +#endif +#if CAIRO_HAS_XLIB_SURFACE + /* This is a fallback surface which uses xlib fallbacks instead of + * the Render extension. */ + { + "xlib-fallback", "image", NULL, NULL, + CAIRO_SURFACE_TYPE_XLIB, CAIRO_CONTENT_COLOR, 1, + "cairo_xlib_surface_create", + _cairo_boilerplate_xlib_fallback_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_xlib_cleanup, + _cairo_boilerplate_xlib_synchronize, + NULL, + FALSE, FALSE, FALSE + }, +#endif +}; +CAIRO_BOILERPLATE (xlib, targets) diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-xlib.h b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-xlib.h new file mode 100644 index 0000000000..9a63918121 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate-xlib.h @@ -0,0 +1,33 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Behdad Esfahbod + */ + +#ifndef _CAIRO_BOILERPLATE_XLIB_H_ +#define _CAIRO_BOILERPLATE_XLIB_H_ + +cairo_status_t +cairo_boilerplate_xlib_surface_disable_render (cairo_surface_t *surface); + +#endif diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate.c b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate.c new file mode 100644 index 0000000000..a3e710f083 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate.c @@ -0,0 +1,1106 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2004,2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-boilerplate-private.h" +#include "cairo-boilerplate-scaled-font.h" +#include "cairo-malloc-private.h" + +#include + +#include +#include +#include + +#if CAIRO_HAS_SCRIPT_SURFACE +#include +#endif + +#include +#include +#include +#include + +#if HAVE_DLFCN_H +#include +#endif + +#if HAVE_UNISTD_H && HAVE_FCNTL_H && HAVE_SIGNAL_H && HAVE_SYS_STAT_H && HAVE_SYS_SOCKET_H && HAVE_SYS_UN_H +#include +#include +#include +#include +#include +#include + +#define HAS_DAEMON 1 +#define SOCKET_PATH "./.any2ppm" +#endif + +cairo_content_t +cairo_boilerplate_content (cairo_content_t content) +{ + if (content == CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED) + content = CAIRO_CONTENT_COLOR_ALPHA; + + return content; +} + +const char * +cairo_boilerplate_content_name (cairo_content_t content) +{ + /* For the purpose of the content name, we don't distinguish the + * flattened content value. + */ + switch (cairo_boilerplate_content (content)) { + case CAIRO_CONTENT_COLOR: + return "rgb24"; + case CAIRO_CONTENT_COLOR_ALPHA: + return "argb32"; + case CAIRO_CONTENT_ALPHA: + default: + assert (0); /* not reached */ + return "---"; + } +} + +static const char * +_cairo_boilerplate_content_visible_name (cairo_content_t content) +{ + switch (cairo_boilerplate_content (content)) { + case CAIRO_CONTENT_COLOR: + return "rgb"; + case CAIRO_CONTENT_COLOR_ALPHA: + return "rgba"; + case CAIRO_CONTENT_ALPHA: + return "a"; + default: + assert (0); /* not reached */ + return "---"; + } +} + +cairo_format_t +cairo_boilerplate_format_from_content (cairo_content_t content) +{ + cairo_format_t format; + + switch (content) { + case CAIRO_CONTENT_COLOR: + format = CAIRO_FORMAT_RGB24; + break; + case CAIRO_CONTENT_COLOR_ALPHA: + format = CAIRO_FORMAT_ARGB32; + break; + case CAIRO_CONTENT_ALPHA: + format = CAIRO_FORMAT_A8; + break; + default: + assert (0); /* not reached */ + format = CAIRO_FORMAT_INVALID; + break; + } + + return format; +} + +static cairo_surface_t * +_cairo_boilerplate_image_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + cairo_format_t format; + + *closure = NULL; + + if (content == CAIRO_CONTENT_COLOR_ALPHA) { + format = CAIRO_FORMAT_ARGB32; + } else if (content == CAIRO_CONTENT_COLOR) { + format = CAIRO_FORMAT_RGB24; + } else { + assert (0); /* not reached */ + return NULL; + } + + return cairo_image_surface_create (format, ceil (width), ceil (height)); +} + +static const cairo_user_data_key_t key; + +static cairo_surface_t * +_cairo_boilerplate_image_create_similar (cairo_surface_t *other, + cairo_content_t content, + int width, int height) +{ + cairo_format_t format; + cairo_surface_t *surface; + int stride; + void *ptr; + + switch (content) { + case CAIRO_CONTENT_ALPHA: + format = CAIRO_FORMAT_A8; + break; + case CAIRO_CONTENT_COLOR: + format = CAIRO_FORMAT_RGB24; + break; + case CAIRO_CONTENT_COLOR_ALPHA: + default: + format = CAIRO_FORMAT_ARGB32; + break; + } + + stride = cairo_format_stride_for_width(format, width); + ptr = _cairo_malloc (stride * height); + + surface = cairo_image_surface_create_for_data (ptr, format, + width, height, stride); + cairo_surface_set_user_data (surface, &key, ptr, free); + + return surface; +} + +static cairo_surface_t * +_cairo_boilerplate_image16_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + *closure = NULL; + + /* XXX force CAIRO_CONTENT_COLOR */ + return cairo_image_surface_create (CAIRO_FORMAT_RGB16_565, ceil (width), ceil (height)); +} + +static cairo_surface_t * +_cairo_boilerplate_image16_create_similar (cairo_surface_t *other, + cairo_content_t content, + int width, int height) +{ + cairo_format_t format; + cairo_surface_t *surface; + int stride; + void *ptr; + + switch (content) { + case CAIRO_CONTENT_ALPHA: + format = CAIRO_FORMAT_A8; + break; + case CAIRO_CONTENT_COLOR: + format = CAIRO_FORMAT_RGB16_565; + break; + case CAIRO_CONTENT_COLOR_ALPHA: + default: + format = CAIRO_FORMAT_ARGB32; + break; + } + + stride = cairo_format_stride_for_width(format, width); + ptr = _cairo_malloc (stride * height); + + surface = cairo_image_surface_create_for_data (ptr, format, + width, height, stride); + cairo_surface_set_user_data (surface, &key, ptr, free); + + return surface; +} + +static char * +_cairo_boilerplate_image_describe (void *closure) +{ + char *s; + + xasprintf (&s, "pixman %s", pixman_version_string ()); + + return s; +} + +#if CAIRO_HAS_RECORDING_SURFACE +static cairo_surface_t * +_cairo_boilerplate_recording_create_surface (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure) +{ + cairo_rectangle_t extents; + + extents.x = 0; + extents.y = 0; + extents.width = width; + extents.height = height; + return *closure = cairo_surface_reference (cairo_recording_surface_create (content, &extents)); +} + +static void +_cairo_boilerplate_recording_surface_cleanup (void *closure) +{ + cairo_surface_finish (closure); + cairo_surface_destroy (closure); +} +#endif + +const cairo_user_data_key_t cairo_boilerplate_output_basename_key; + +cairo_surface_t * +_cairo_boilerplate_get_image_surface (cairo_surface_t *src, + int page, + int width, + int height) +{ + cairo_surface_t *surface, *image; + cairo_t *cr; + cairo_status_t status; + cairo_format_t format; + + if (cairo_surface_status (src)) + return cairo_surface_reference (src); + + if (page != 0) + return cairo_boilerplate_surface_create_in_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + + /* extract sub-surface */ + switch (cairo_surface_get_content (src)) { + case CAIRO_CONTENT_ALPHA: + format = CAIRO_FORMAT_A8; + break; + case CAIRO_CONTENT_COLOR: + format = CAIRO_FORMAT_RGB24; + break; + default: + case CAIRO_CONTENT_COLOR_ALPHA: + format = CAIRO_FORMAT_ARGB32; + break; + } + surface = cairo_image_surface_create (format, width, height); + assert (cairo_surface_get_content (surface) == cairo_surface_get_content (src)); + image = cairo_surface_reference (surface); + + /* open a logging channel (only interesting for recording surfaces) */ +#if CAIRO_HAS_SCRIPT_SURFACE && CAIRO_HAS_RECORDING_SURFACE + if (cairo_surface_get_type (src) == CAIRO_SURFACE_TYPE_RECORDING) { + const char *test_name; + + test_name = cairo_surface_get_user_data (src, + &cairo_boilerplate_output_basename_key); + if (test_name != NULL) { + cairo_device_t *ctx; + char *filename; + + cairo_surface_destroy (surface); + + xasprintf (&filename, "%s.out.trace", test_name); + ctx = cairo_script_create (filename); + surface = cairo_script_surface_create_for_target (ctx, image); + cairo_device_destroy (ctx); + free (filename); + } + } +#endif + + cr = cairo_create (surface); + cairo_surface_destroy (surface); + cairo_set_source_surface (cr, src, 0, 0); + cairo_paint (cr); + + status = cairo_status (cr); + if (status) { + cairo_surface_destroy (image); + image = cairo_surface_reference (cairo_get_target (cr)); + } + cairo_destroy (cr); + + return image; +} + +cairo_surface_t * +cairo_boilerplate_get_image_surface_from_png (const char *filename, + int width, + int height, + cairo_bool_t flatten) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_from_png (filename); + if (cairo_surface_status (surface)) + return surface; + + if (flatten) { + cairo_t *cr; + cairo_surface_t *flattened; + + flattened = cairo_image_surface_create (cairo_image_surface_get_format (surface), + width, + height); + cr = cairo_create (flattened); + cairo_surface_destroy (flattened); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_surface (cr, surface, + width - cairo_image_surface_get_width (surface), + height - cairo_image_surface_get_height (surface)); + cairo_paint (cr); + + cairo_surface_destroy (surface); + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + } else if (cairo_image_surface_get_width (surface) != width || + cairo_image_surface_get_height (surface) != height) + { + cairo_t *cr; + cairo_surface_t *sub; + + sub = cairo_image_surface_create (cairo_image_surface_get_format (surface), + width, + height); + cr = cairo_create (sub); + cairo_surface_destroy (sub); + + cairo_set_source_surface (cr, surface, + width - cairo_image_surface_get_width (surface), + height - cairo_image_surface_get_height (surface)); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + + cairo_surface_destroy (surface); + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + } + + return surface; +} + +static const cairo_boilerplate_target_t builtin_targets[] = { + /* I'm uncompromising about leaving the image backend as 0 + * for tolerance. There shouldn't ever be anything that is out of + * our control here. */ + { + "image", "image", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, CAIRO_CONTENT_COLOR_ALPHA, 0, + NULL, + _cairo_boilerplate_image_create_surface, + _cairo_boilerplate_image_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, + _cairo_boilerplate_image_describe, + TRUE, FALSE, FALSE + }, + { + "image", "image", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, CAIRO_CONTENT_COLOR, 0, + NULL, + _cairo_boilerplate_image_create_surface, + _cairo_boilerplate_image_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, + _cairo_boilerplate_image_describe, + FALSE, FALSE, FALSE + }, + { + "image16", "image", NULL, NULL, + CAIRO_SURFACE_TYPE_IMAGE, CAIRO_CONTENT_COLOR, 0, + NULL, + _cairo_boilerplate_image16_create_surface, + _cairo_boilerplate_image16_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + NULL, NULL, + _cairo_boilerplate_image_describe, + TRUE, FALSE, FALSE + }, +#if CAIRO_HAS_RECORDING_SURFACE + { + "recording", "image", NULL, NULL, + CAIRO_SURFACE_TYPE_RECORDING, CAIRO_CONTENT_COLOR_ALPHA, 0, + "cairo_recording_surface_create", + _cairo_boilerplate_recording_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_recording_surface_cleanup, + NULL, NULL, + FALSE, FALSE, TRUE + }, + { + "recording", "image", NULL, NULL, + CAIRO_SURFACE_TYPE_RECORDING, CAIRO_CONTENT_COLOR, 0, + "cairo_recording_surface_create", + _cairo_boilerplate_recording_create_surface, + cairo_surface_create_similar, + NULL, NULL, + _cairo_boilerplate_get_image_surface, + cairo_surface_write_to_png, + _cairo_boilerplate_recording_surface_cleanup, + NULL, NULL, + FALSE, FALSE, TRUE + }, +#endif +}; +CAIRO_BOILERPLATE (builtin, builtin_targets) + +static struct cairo_boilerplate_target_list { + struct cairo_boilerplate_target_list *next; + const cairo_boilerplate_target_t *target; +} *cairo_boilerplate_targets; + +static cairo_bool_t +probe_target (const cairo_boilerplate_target_t *target) +{ + if (target->probe == NULL) + return TRUE; + +#if HAVE_DLSYM + return dlsym (NULL, target->probe) != NULL; +#else + return TRUE; +#endif +} + +void +_cairo_boilerplate_register_backend (const cairo_boilerplate_target_t *targets, + unsigned int count) +{ + targets += count; + while (count--) { + struct cairo_boilerplate_target_list *list; + + --targets; + if (! probe_target (targets)) + continue; + + list = xmalloc (sizeof (*list)); + list->next = cairo_boilerplate_targets; + list->target = targets; + cairo_boilerplate_targets = list; + } +} + +static cairo_bool_t +_cairo_boilerplate_target_format_matches_name (const cairo_boilerplate_target_t *target, + const char *tcontent_name, + const char *tcontent_end) +{ + char const *content_name; + const char *content_end = tcontent_end; + size_t content_len; + + content_name = _cairo_boilerplate_content_visible_name (target->content); + if (tcontent_end) + content_len = content_end - tcontent_name; + else + content_len = strlen(tcontent_name); + if (strlen(content_name) != content_len) + return FALSE; + if (0 == strncmp (content_name, tcontent_name, content_len)) + return TRUE; + + return FALSE; +} + +static cairo_bool_t +_cairo_boilerplate_target_matches_name (const cairo_boilerplate_target_t *target, + const char *tname, + const char *end) +{ + char const *content_name; + const char *content_start = strpbrk (tname, "."); + const char *content_end = end; + size_t name_len; + size_t content_len; + + if (content_start >= end) + content_start = NULL; + if (content_start != NULL) + end = content_start++; + + name_len = end - tname; + + /* Check name. */ + if (! (name_len == 1 && 0 == strncmp (tname, "?", 1))) { /* wildcard? */ + if (0 != strncmp (target->name, tname, name_len)) /* exact match? */ + return FALSE; + if (_cairo_isalnum (target->name[name_len])) + return FALSE; + } + + /* Check optional content. */ + if (content_start == NULL) /* none given? */ + return TRUE; + + /* Exact content match? */ + content_name = _cairo_boilerplate_content_visible_name (target->content); + content_len = content_end - content_start; + if (strlen(content_name) != content_len) + return FALSE; + if (0 == strncmp (content_name, content_start, content_len)) + return TRUE; + + return FALSE; +} + +const cairo_boilerplate_target_t ** +cairo_boilerplate_get_targets (int *pnum_targets, + cairo_bool_t *plimited_targets) +{ + size_t i, num_targets; + cairo_bool_t limited_targets = FALSE; + const char *tname; + const cairo_boilerplate_target_t **targets_to_test; + struct cairo_boilerplate_target_list *list; + + if (cairo_boilerplate_targets == NULL) + _cairo_boilerplate_register_all (); + + if ((tname = getenv ("CAIRO_TEST_TARGET")) != NULL && *tname) { + /* check the list of targets specified by the user */ + limited_targets = TRUE; + + num_targets = 0; + targets_to_test = NULL; + + while (*tname) { + int found = 0; + const char *end = strpbrk (tname, " \t\r\n;:,"); + if (!end) + end = tname + strlen (tname); + + if (end == tname) { + tname = end + 1; + continue; + } + + for (list = cairo_boilerplate_targets; + list != NULL; + list = list->next) + { + const cairo_boilerplate_target_t *target = list->target; + const char *tcontent_name; + const char *tcontent_end; + if (_cairo_boilerplate_target_matches_name (target, tname, end)) { + if ((tcontent_name = getenv ("CAIRO_TEST_TARGET_FORMAT")) != NULL && *tcontent_name) { + while(tcontent_name) { + tcontent_end = strpbrk (tcontent_name, " \t\r\n;:,"); + if (tcontent_end == tcontent_name) { + tcontent_name = tcontent_end + 1; + continue; + } + if(_cairo_boilerplate_target_format_matches_name (target, + tcontent_name, tcontent_end)) { + /* realloc isn't exactly the best thing here, but meh. */ + targets_to_test = xrealloc (targets_to_test, + sizeof(cairo_boilerplate_target_t *) * (num_targets+1)); + targets_to_test[num_targets++] = target; + found = 1; + } + + if (tcontent_end) + tcontent_end++; + tcontent_name = tcontent_end; + } + } else { + /* realloc isn't exactly the best thing here, but meh. */ + targets_to_test = xrealloc (targets_to_test, + sizeof(cairo_boilerplate_target_t *) * (num_targets+1)); + targets_to_test[num_targets++] = target; + found = 1; + } + } + } + + if (!found) { + const char *last_name = NULL; + + fprintf (stderr, "Cannot find target '%.*s'.\n", + (int)(end - tname), tname); + fprintf (stderr, "Known targets:"); + for (list = cairo_boilerplate_targets; + list != NULL; + list = list->next) + { + const cairo_boilerplate_target_t *target = list->target; + if (last_name != NULL) { + if (strcmp (target->name, last_name) == 0) { + /* filter out repeats that differ in content */ + continue; + } + fprintf (stderr, ","); + } + fprintf (stderr, " %s", target->name); + last_name = target->name; + } + fprintf (stderr, "\n"); + exit(-1); + } + + if (*end) + end++; + tname = end; + } + } else { + int found = 0; + int not_found_targets = 0; + num_targets = 0; + targets_to_test = xmalloc (sizeof(cairo_boilerplate_target_t*) * num_targets); + for (list = cairo_boilerplate_targets; list != NULL; list = list->next) + { + const cairo_boilerplate_target_t *target = list->target; + const char *tcontent_name; + const char *tcontent_end; + if ((tcontent_name = getenv ("CAIRO_TEST_TARGET_FORMAT")) != NULL && *tcontent_name) { + while(tcontent_name) { + tcontent_end = strpbrk (tcontent_name, " \t\r\n;:,"); + if (tcontent_end == tcontent_name) { + tcontent_name = tcontent_end + 1; + continue; + } + if (_cairo_boilerplate_target_format_matches_name (target, + tcontent_name, tcontent_end)) { + /* realloc isn't exactly the best thing here, but meh. */ + targets_to_test = xrealloc (targets_to_test, + sizeof(cairo_boilerplate_target_t *) * (num_targets+1)); + targets_to_test[num_targets++] = target; + found =1; + } + else + { + not_found_targets++; + } + + if (tcontent_end) + tcontent_end++; + + tcontent_name = tcontent_end; + } + } + else + { + num_targets++; + } + } + if (!found) + { + /* check all compiled in targets */ + num_targets = num_targets + not_found_targets; + targets_to_test = xrealloc (targets_to_test, + sizeof(cairo_boilerplate_target_t*) * num_targets); + num_targets = 0; + for (list = cairo_boilerplate_targets; + list != NULL; + list = list->next) + { + const cairo_boilerplate_target_t *target = list->target; + targets_to_test[num_targets++] = target; + } + } + + } + + /* exclude targets as specified by the user */ + if ((tname = getenv ("CAIRO_TEST_TARGET_EXCLUDE")) != NULL && *tname) { + limited_targets = TRUE; + + while (*tname) { + int j; + const char *end = strpbrk (tname, " \t\r\n;:,"); + if (!end) + end = tname + strlen (tname); + + if (end == tname) { + tname = end + 1; + continue; + } + + for (i = j = 0; i < num_targets; i++) { + const cairo_boilerplate_target_t *target = targets_to_test[i]; + if (! _cairo_boilerplate_target_matches_name (target, + tname, end)) + { + targets_to_test[j++] = targets_to_test[i]; + } + } + num_targets = j; + + if (*end) + end++; + tname = end; + } + } + + if (pnum_targets) + *pnum_targets = num_targets; + + if (plimited_targets) + *plimited_targets = limited_targets; + + return targets_to_test; +} + +const cairo_boilerplate_target_t * +cairo_boilerplate_get_image_target (cairo_content_t content) +{ + if (cairo_boilerplate_targets == NULL) + _cairo_boilerplate_register_all (); + + switch (content) { + case CAIRO_CONTENT_COLOR: + return &builtin_targets[1]; + case CAIRO_CONTENT_COLOR_ALPHA: + return &builtin_targets[0]; + case CAIRO_CONTENT_ALPHA: + default: + return NULL; + } +} + +const cairo_boilerplate_target_t * +cairo_boilerplate_get_target_by_name (const char *name, + cairo_content_t content) +{ + struct cairo_boilerplate_target_list *list; + + if (cairo_boilerplate_targets == NULL) + _cairo_boilerplate_register_all (); + + /* first return an exact match */ + for (list = cairo_boilerplate_targets; list != NULL; list = list->next) { + const cairo_boilerplate_target_t *target = list->target; + if (strcmp (target->name, name) == 0 && + target->content == content) + { + return target; + } + } + + /* otherwise just return a match that may differ in content */ + for (list = cairo_boilerplate_targets; list != NULL; list = list->next) { + const cairo_boilerplate_target_t *target = list->target; + if (strcmp (target->name, name) == 0) + return target; + } + + return NULL; +} + +void +cairo_boilerplate_free_targets (const cairo_boilerplate_target_t **targets) +{ + free (targets); +} + +cairo_surface_t * +cairo_boilerplate_surface_create_in_error (cairo_status_t status) +{ + cairo_surface_t *surface = NULL; + int loop = 5; + + do { + cairo_surface_t *intermediate; + cairo_t *cr; + cairo_path_t path; + + intermediate = cairo_image_surface_create (CAIRO_FORMAT_A8, 0, 0); + cr = cairo_create (intermediate); + cairo_surface_destroy (intermediate); + + path.status = status; + cairo_append_path (cr, &path); + + cairo_surface_destroy (surface); + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + } while (cairo_surface_status (surface) != status && --loop); + + return surface; +} + +void +cairo_boilerplate_scaled_font_set_max_glyphs_cached (cairo_scaled_font_t *scaled_font, + int max_glyphs) +{ + /* XXX CAIRO_DEBUG */ +} + +#if HAS_DAEMON +static int +any2ppm_daemon_exists (void) +{ + struct stat st; + int fd; + char buf[80]; + int pid; + int ret; + + if (stat (SOCKET_PATH, &st) < 0) + return 0; + + fd = open (SOCKET_PATH ".pid", O_RDONLY); + if (fd < 0) + return 0; + + pid = 0; + ret = read (fd, buf, sizeof (buf) - 1); + if (ret > 0) { + buf[ret] = '\0'; + pid = atoi (buf); + } + close (fd); + + return pid > 0 && kill (pid, 0) != -1; +} +#endif + +FILE * +cairo_boilerplate_open_any2ppm (const char *filename, + int page, + unsigned int flags, + int (**close_cb) (FILE *)) +{ + char command[4096]; + const char *any2ppm; +#if HAS_DAEMON + int sk; + struct sockaddr_un addr; + int len; +#endif + + any2ppm = getenv ("ANY2PPM"); + if (any2ppm == NULL) + any2ppm = "./any2ppm"; + +#if HAS_DAEMON + if (flags & CAIRO_BOILERPLATE_OPEN_NO_DAEMON) + goto POPEN; + + if (! any2ppm_daemon_exists ()) { + if (system (any2ppm) != 0) + goto POPEN; + } + + sk = socket (PF_UNIX, SOCK_STREAM, 0); + if (sk == -1) + goto POPEN; + + memset (&addr, 0, sizeof (addr)); + addr.sun_family = AF_UNIX; + strcpy (addr.sun_path, SOCKET_PATH); + + if (connect (sk, (struct sockaddr *) &addr, sizeof (addr)) == -1) { + close (sk); + goto POPEN; + } + + len = sprintf (command, "%s %d\n", filename, page); + if (write (sk, command, len) != len) { + close (sk); + goto POPEN; + } + + *close_cb = fclose; + return fdopen (sk, "rb"); + +POPEN: +#endif + + *close_cb = pclose; + sprintf (command, "%s %s %d", any2ppm, filename, page); + return popen (command, "r"); +} + +static cairo_bool_t +freadn (unsigned char *buf, + int len, + FILE *file) +{ + int ret; + + while (len) { + ret = fread (buf, 1, len, file); + if (ret != len) { + if (ferror (file) || feof (file)) + return FALSE; + } + len -= ret; + buf += len; + } + + return TRUE; +} + +cairo_surface_t * +cairo_boilerplate_image_surface_create_from_ppm_stream (FILE *file) +{ + char format; + int width, height; + ptrdiff_t stride; + int x, y; + unsigned char *data; + cairo_surface_t *image = NULL; + + if (fscanf (file, "P%c %d %d 255\n", &format, &width, &height) != 3) + goto FAIL; + + switch (format) { + case '7': /* XXX */ + image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height); + break; + case '6': + image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height); + break; + case '5': + image = cairo_image_surface_create (CAIRO_FORMAT_A8, width, height); + break; + default: + goto FAIL; + } + if (cairo_surface_status (image)) + return image; + + data = cairo_image_surface_get_data (image); + stride = cairo_image_surface_get_stride (image); + for (y = 0; y < height; y++) { + unsigned char *buf = data + y*stride; + switch (format) { + case '7': + if (! freadn (buf, 4 * width, file)) + goto FAIL; + break; + case '6': + if (! freadn (buf, 3*width, file)) + goto FAIL; + buf += 3*width; + for (x = width; x--; ) { + buf -= 3; + ((uint32_t *) (data + y*stride))[x] = + (buf[0] << 16) | (buf[1] << 8) | (buf[2] << 0); + } + break; + case '5': + if (! freadn (buf, width, file)) + goto FAIL; + break; + } + } + cairo_surface_mark_dirty (image); + + return image; + +FAIL: + cairo_surface_destroy (image); + return cairo_boilerplate_surface_create_in_error (CAIRO_STATUS_READ_ERROR); +} + +cairo_surface_t * +cairo_boilerplate_convert_to_image (const char *filename, + int page) +{ + FILE *file; + unsigned int flags = 0; + cairo_surface_t *image; + int (*close_cb) (FILE *); + int ret; + + if (getenv ("CAIRO_BOILERPLATE_OPEN_NO_DAEMON") != NULL) { + flags |= CAIRO_BOILERPLATE_OPEN_NO_DAEMON; + } + + RETRY: + file = cairo_boilerplate_open_any2ppm (filename, page, flags, &close_cb); + if (file == NULL) { + switch (errno) { + case ENOMEM: + return cairo_boilerplate_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); + default: + return cairo_boilerplate_surface_create_in_error (CAIRO_STATUS_READ_ERROR); + } + } + + image = cairo_boilerplate_image_surface_create_from_ppm_stream (file); + ret = close_cb (file); + /* check for fatal errors from the interpreter */ + if (ret) { /* any2pmm should never die... */ + cairo_surface_destroy (image); + if (getenv ("CAIRO_BOILERPLATE_DO_NOT_CRASH_ON_ANY2PPM_ERROR") != NULL) { + return cairo_boilerplate_surface_create_in_error (CAIRO_STATUS_WRITE_ERROR); + } else { + return cairo_boilerplate_surface_create_in_error (CAIRO_STATUS_INVALID_STATUS); + } + } + + if (ret == 0 && cairo_surface_status (image) == CAIRO_STATUS_READ_ERROR) { + if (flags == 0) { + /* Try again in a standalone process. */ + cairo_surface_destroy (image); + flags = CAIRO_BOILERPLATE_OPEN_NO_DAEMON; + goto RETRY; + } + } + + return image; +} + +int +cairo_boilerplate_version (void) +{ + return CAIRO_VERSION; +} + +const char* +cairo_boilerplate_version_string (void) +{ + return CAIRO_VERSION_STRING; +} + +void +cairo_boilerplate_fini (void) +{ + while (cairo_boilerplate_targets != NULL) { + struct cairo_boilerplate_target_list *next; + + next = cairo_boilerplate_targets->next; + + free (cairo_boilerplate_targets); + cairo_boilerplate_targets = next; + } +} diff --git a/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate.h b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate.h new file mode 100644 index 0000000000..736534eafb --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/cairo-boilerplate.h @@ -0,0 +1,255 @@ +/* + * Copyright © 2004,2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#ifndef _CAIRO_BOILERPLATE_H_ +#define _CAIRO_BOILERPLATE_H_ + +#include "config.h" + +#include +#include +#include +#include +#include + +#include "cairo-compiler-private.h" + +#if HAVE_STDINT_H +# include +#elif HAVE_INTTYPES_H +# include +#elif HAVE_SYS_INT_TYPES_H +# include +#elif defined(_MSC_VER) +# include + typedef __int8 int8_t; + typedef unsigned __int8 uint8_t; + typedef __int16 int16_t; + typedef unsigned __int16 uint16_t; + typedef __int32 int32_t; + typedef unsigned __int32 uint32_t; + typedef __int64 int64_t; + typedef unsigned __int64 uint64_t; +#else +#error Cannot find definitions for fixed-width integral types (uint8_t, uint32_t, etc.) +#endif + +#ifndef HAVE_UINT64_T +# define HAVE_UINT64_T 1 +#endif +#ifndef INT16_MIN +# define INT16_MIN (-32767-1) +#endif +#ifndef INT16_MAX +# define INT16_MAX (32767) +#endif +#ifndef UINT16_MAX +# define UINT16_MAX (65535) +#endif + +#ifndef CAIRO_BOILERPLATE_DEBUG +#define CAIRO_BOILERPLATE_DEBUG(x) +#endif + +#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4) +#ifdef __MINGW32__ +#define CAIRO_BOILERPLATE_PRINTF_FORMAT(fmt_index, va_index) \ + __attribute__((__format__(__MINGW_PRINTF_FORMAT, fmt_index, va_index))) +#else +#define CAIRO_BOILERPLATE_PRINTF_FORMAT(fmt_index, va_index) \ + __attribute__((__format__(__printf__, fmt_index, va_index))) +#endif +#else +#define CAIRO_BOILERPLATE_PRINTF_FORMAT(fmt_index, va_index) +#endif + +#ifndef FALSE +#define FALSE 0 +#endif + +#ifndef TRUE +#define TRUE 1 +#endif + +#ifndef M_PI +#define M_PI 3.14159265358979323846 +#endif + +#ifndef ARRAY_LENGTH +#define ARRAY_LENGTH(__array) ((int) (sizeof (__array) / sizeof (__array[0]))) +#endif + +CAIRO_BEGIN_DECLS + +/* A fake format we use for the flattened ARGB output of the PS and + * PDF surfaces. */ +#define CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED ((unsigned int) -1) + +extern const cairo_user_data_key_t cairo_boilerplate_output_basename_key; + +cairo_content_t +cairo_boilerplate_content (cairo_content_t content); + +const char * +cairo_boilerplate_content_name (cairo_content_t content); + +cairo_format_t +cairo_boilerplate_format_from_content (cairo_content_t content); + +typedef enum { + CAIRO_BOILERPLATE_MODE_TEST, + CAIRO_BOILERPLATE_MODE_PERF, + + /* This will allow running performance test with threads. The + * GL backend is very slow on some drivers when run with thread + * awareness turned on. */ + CAIRO_BOILERPLATE_MODE_PERF_THREADS, +} cairo_boilerplate_mode_t; + +typedef cairo_surface_t * +(*cairo_boilerplate_create_surface_t) (const char *name, + cairo_content_t content, + double width, + double height, + double max_width, + double max_height, + cairo_boilerplate_mode_t mode, + void **closure); + +typedef cairo_surface_t * +(*cairo_boilerplate_create_similar_t) (cairo_surface_t *other, + cairo_content_t content, + int width, + int height); + +typedef void +(*cairo_boilerplate_force_fallbacks_t) (cairo_surface_t *surface, + double x_pixels_per_inch, + double y_pixels_per_inch); + +typedef cairo_status_t +(*cairo_boilerplate_finish_surface_t) (cairo_surface_t *surface); + +typedef cairo_surface_t * +(*cairo_boilerplate_get_image_surface_t) (cairo_surface_t *surface, + int page, + int width, + int height); + +typedef cairo_status_t +(*cairo_boilerplate_write_to_png_t) (cairo_surface_t *surface, + const char *filename); + +typedef void +(*cairo_boilerplate_cleanup_t) (void *closure); + +typedef void +(*cairo_boilerplate_wait_t) (void *closure); + +typedef char * +(*cairo_boilerplate_describe_t) (void *closure); + +typedef struct _cairo_boilerplate_target { + const char *name; + const char *basename; + const char *file_extension; + const char *reference_target; + cairo_surface_type_t expected_type; + cairo_content_t content; + unsigned int error_tolerance; + const char *probe; /* runtime dl check */ + cairo_boilerplate_create_surface_t create_surface; + cairo_boilerplate_create_similar_t create_similar; + cairo_boilerplate_force_fallbacks_t force_fallbacks; + cairo_boilerplate_finish_surface_t finish_surface; + cairo_boilerplate_get_image_surface_t get_image_surface; + cairo_boilerplate_write_to_png_t write_to_png; + cairo_boilerplate_cleanup_t cleanup; + cairo_boilerplate_wait_t synchronize; + cairo_boilerplate_describe_t describe; + cairo_bool_t is_measurable; + cairo_bool_t is_vector; + cairo_bool_t is_recording; +} cairo_boilerplate_target_t; + +const cairo_boilerplate_target_t * +cairo_boilerplate_get_image_target (cairo_content_t content); + +const cairo_boilerplate_target_t * +cairo_boilerplate_get_target_by_name (const char *name, + cairo_content_t content); + +const cairo_boilerplate_target_t ** +cairo_boilerplate_get_targets (int *num_targets, + cairo_bool_t *limited_targets); + +void +cairo_boilerplate_free_targets (const cairo_boilerplate_target_t **targets); + +cairo_surface_t * +_cairo_boilerplate_get_image_surface (cairo_surface_t *src, + int page, + int width, + int height); +cairo_surface_t * +cairo_boilerplate_get_image_surface_from_png (const char *filename, + int width, + int height, + cairo_bool_t flatten); + +cairo_surface_t * +cairo_boilerplate_surface_create_in_error (cairo_status_t status); + +enum { + CAIRO_BOILERPLATE_OPEN_NO_DAEMON = 0x1, +}; + +FILE * +cairo_boilerplate_open_any2ppm (const char *filename, + int page, + unsigned int flags, + int (**close_cb) (FILE *)); + +cairo_surface_t * +cairo_boilerplate_image_surface_create_from_ppm_stream (FILE *file); + +cairo_surface_t * +cairo_boilerplate_convert_to_image (const char *filename, + int page); + +int +cairo_boilerplate_version (void); + +const char* +cairo_boilerplate_version_string (void); + +void +cairo_boilerplate_fini (void); + +#include "cairo-boilerplate-system.h" + +CAIRO_END_DECLS + +#endif diff --git a/local/recipes/libs/cairo/source/boilerplate/make-cairo-boilerplate-constructors.py b/local/recipes/libs/cairo/source/boilerplate/make-cairo-boilerplate-constructors.py new file mode 100644 index 0000000000..40198ed1a1 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/make-cairo-boilerplate-constructors.py @@ -0,0 +1,38 @@ +# IMPORTANT: Keep in sync with make-cairo-boilerplate-constructors.sh +# and test/make-cairo-test-constructors.py! +import argparse +import sys +import re + +if __name__=='__main__': + parser = argparse.ArgumentParser() + parser.add_argument('output') + parser.add_argument('input', nargs='+') + args = parser.parse_args() + + boilerplate_names = [] + + match_boilerplate_line = re.compile(r'^CAIRO_BOILERPLATE.*') + match_boilerplate_name = re.compile(r'^CAIRO_BOILERPLATE.*\((.*),.*') + + for fname in args.input: + with open(fname, 'r', encoding='utf-8') as f: + for l in f.readlines(): + if match_boilerplate_line.match(l): + boilerplate_names.append(match_boilerplate_name.match(l).group(1)) + + with open(args.output, 'w', encoding='utf-8') as f: + f.write('/* WARNING: Autogenerated file - see %s! */\n\n' % sys.argv[0]) + f.write('#include "cairo-boilerplate-private.h"\n\n') + f.write('void _cairo_boilerplate_register_all (void);\n\n') + + for boilerplate_name in boilerplate_names: + f.write('extern void _register_%s (void);\n' % boilerplate_name) + + f.write('\nvoid\n') + f.write('_cairo_boilerplate_register_all (void)\n') + f.write('{\n') + + for boilerplate_name in boilerplate_names: + f.write(' _register_%s ();\n' % boilerplate_name) + f.write('}\n') diff --git a/local/recipes/libs/cairo/source/boilerplate/make-cairo-boilerplate-constructors.sh b/local/recipes/libs/cairo/source/boilerplate/make-cairo-boilerplate-constructors.sh new file mode 100644 index 0000000000..1503e99707 --- /dev/null +++ b/local/recipes/libs/cairo/source/boilerplate/make-cairo-boilerplate-constructors.sh @@ -0,0 +1,31 @@ +#! /bin/sh +# +# IMPORTANT: Keep in sync with make-cairo-boilerplate-constructors.py! + +if test $# -eq 0; then + echo "$0: no input files." >&2 + exit 0 +fi + +cat < + +Hobby's primary contribution in that paper is his "tolerance square" +algorithm for robustness against edges being "bent" due to restricting +intersection coordinates to the grid available by finite-precision +arithmetic. This is one algorithm we have not implemented yet. + +We use a data-structure called Skiplists in the our implementation of +Bentley-Ottmann: + +- W. Pugh, Skip Lists: a Probabilistic Alternative to Balanced Trees, + Communications of the ACM, vol. 33, no. 6, pp.668-676, 1990. + + +The random number generator used in our skip list implementation is a very +small generator by Hars and Petruska. The generator is based on an +invertable function on Z_{2^32} with full period and is described in + +- Hars L. and Petruska G., + Pseudorandom Recursions: Small and Fast Pseurodandom + Number Generators for Embedded Applications, + Hindawi Publishing Corporation + EURASIP Journal on Embedded Systems + Volume 2007, Article ID 98417, 13 pages + doi:10.1155/2007/98417 + + +From the result of the intersection-finding pass, we are currently computing +a tessellation of trapezoids, (the exact manner is undergoing some work +right now with some important speedup), but we may want to rasterize +directly from those edges at some point. + +Given the set of tessellated trapezoids, we currently execute a +straightforward, (and slow), point-sampled rasterization, (and currently +with a near-pessimal regular 15x17 grid). + +We've now computed a mask which gets fed along with the source and +destination into cairo's fundamental rendering equation. The most basic form +of this equation is: + + destination = (source IN mask) OP destination + +with the restriction that no part of the destination outside the current +clip region is affected. In this equation, IN refers to the Porter-Duff "in" +operation, while OP refers to a any user-selected Porter-Duff operator: + +- T. Porter & T. Duff, Compositing Digital Images Computer + Graphics Volume 18, Number 3 July 1984 pp 253-259 + diff --git a/local/recipes/libs/cairo/source/doc/public/.gitignore b/local/recipes/libs/cairo/source/doc/public/.gitignore new file mode 100644 index 0000000000..881463af0a --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/public/.gitignore @@ -0,0 +1,21 @@ +*.stamp +Makefile +Makefile.in +cairo-decl-list.txt +cairo-decl.txt +cairo-docs.sgml +cairo-undeclared.txt +cairo-undocumented.txt +cairo-unused.txt +cairo.hierarchy +cairo.interfaces +cairo.prerequisites +cairo.args +cairo.signals +html +xml +tmpl +version.xml +*~ +*.bak +*.trs diff --git a/local/recipes/libs/cairo/source/doc/public/README b/local/recipes/libs/cairo/source/doc/public/README new file mode 100644 index 0000000000..f3d157b1a9 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/public/README @@ -0,0 +1,37 @@ +Cairo Reference Documentation +============================= + +The API documentation is generated using gtk-doc. + + +Building +-------- + +The documentation is not built by default. To build it you need to +configure with gtk-doc enabled (--enable-gtk-doc), and run: + + make doc + + +Adding New API +-------------- + +When adding new symbols and macros to the public API, modify +cairo-section.txt and add new symbols to the right place. + +When adding whole new features, you also need to modify cairo-docs.xml +and add a new file under tmpl/. Beware that the files are tmpl/ are +both manually edited AND modified by gtk-doc, gathering documentation +stub from source files. + + +Tests +----- + +There are some tests in this directory, ensuring proper documentation +syntax as well as checking that all public symbols are fully documented. + +After adding any new API, just run: + + make check + diff --git a/local/recipes/libs/cairo/source/doc/public/cairo-docs.xml b/local/recipes/libs/cairo/source/doc/public/cairo-docs.xml new file mode 100644 index 0000000000..6bfbddf64b --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/public/cairo-docs.xml @@ -0,0 +1,109 @@ + + +]> + +Cairo: A Vector Graphics Library + + Cairo: A Vector Graphics Library + for Cairo &version; + + + Drawing + + + + + + + + + + + Fonts + + + + + + + + + + + Surfaces + + + + + + + + + + + + + + + + + + + Utilities + + + + + + + Index + + + + + Index of new symbols in 1.0 + + + + Index of new symbols in 1.2 + + + + Index of new symbols in 1.4 + + + + Index of new symbols in 1.6 + + + + Index of new symbols in 1.8 + + + + Index of new symbols in 1.10 + + + + Index of new symbols in 1.12 + + + + Index of new symbols in 1.14 + + + + Index of new symbols in 1.16 + + + + Index of new symbols in 1.18 + + + + diff --git a/local/recipes/libs/cairo/source/doc/public/cairo-overrides.txt b/local/recipes/libs/cairo/source/doc/public/cairo-overrides.txt new file mode 100644 index 0000000000..dd80844923 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/public/cairo-overrides.txt @@ -0,0 +1,124 @@ + +CAIRO_HAS_FT_FONT +#define CAIRO_HAS_FT_FONT + + + +CAIRO_HAS_FC_FONT +#define CAIRO_HAS_FC_FONT + + + +CAIRO_HAS_PNG_FUNCTIONS +#define CAIRO_HAS_PNG_FUNCTIONS + + + +CAIRO_HAS_SVG_SURFACE +#define CAIRO_HAS_SVG_SURFACE + + + +CAIRO_HAS_PDF_SURFACE +#define CAIRO_HAS_PDF_SURFACE + + + +CAIRO_HAS_PS_SURFACE +#define CAIRO_HAS_PS_SURFACE + + + +CAIRO_HAS_SCRIPT_SURFACE +#define CAIRO_HAS_SCRIPT_SURFACE + + + +CAIRO_HAS_XLIB_SURFACE +#define CAIRO_HAS_XLIB_SURFACE + + + +CAIRO_HAS_XLIB_XRENDER_SURFACE +#define CAIRO_HAS_XLIB_XRENDER_SURFACE + + + +CAIRO_HAS_XCB_SURFACE +#define CAIRO_HAS_XCB_SURFACE + + + +CAIRO_HAS_XLIB_XCB_FUNCTIONS +#define CAIRO_HAS_XLIB_XCB_FUNCTIONS + + + +CAIRO_HAS_XCB_SHM_FUNCTIONS +#define CAIRO_HAS_XCB_SHM_FUNCTIONS + + + +CAIRO_HAS_QUARTZ_SURFACE +#define CAIRO_HAS_QUARTZ_SURFACE + + + +CAIRO_HAS_QUARTZ_IMAGE_SURFACE +#define CAIRO_HAS_QUARTZ_IMAGE_SURFACE + + + +CAIRO_HAS_QUARTZ_FONT +#define CAIRO_HAS_QUARTZ_FONT + + + +CAIRO_HAS_WIN32_SURFACE +#define CAIRO_HAS_WIN32_SURFACE + + + +CAIRO_HAS_WIN32_FONT +#define CAIRO_HAS_WIN32_FONT + + + +CAIRO_HAS_DWRITE_FONT +#define CAIRO_HAS_DWRITE_FONT + + + +CAIRO_HAS_GOBJECT_FUNCTIONS +#define CAIRO_HAS_GOBJECT_FUNCTIONS + + + +CAIRO_HAS_IMAGE_SURFACE +#define CAIRO_HAS_IMAGE_SURFACE + + + +CAIRO_HAS_USER_FONT +#define CAIRO_HAS_USER_FONT + + + +CAIRO_HAS_MIME_SURFACE +#define CAIRO_HAS_MIME_SURFACE + + + +CAIRO_HAS_RECORDING_SURFACE +#define CAIRO_HAS_RECORDING_SURFACE + + + +CAIRO_HAS_OBSERVER_SURFACE +#define CAIRO_HAS_OBSERVER_SURFACE + + + +CAIRO_HAS_TEE_SURFACE +#define CAIRO_HAS_TEE_SURFACE + diff --git a/local/recipes/libs/cairo/source/doc/public/cairo-sections.txt b/local/recipes/libs/cairo/source/doc/public/cairo-sections.txt new file mode 100644 index 0000000000..52bbbb2310 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/public/cairo-sections.txt @@ -0,0 +1,791 @@ +
+cairo-ft +CAIRO_HAS_FT_FONT +CAIRO_HAS_FC_FONT +cairo_ft_font_face_create_for_ft_face +cairo_ft_font_face_create_for_pattern +cairo_ft_font_options_substitute +cairo_ft_scaled_font_lock_face +cairo_ft_scaled_font_unlock_face +cairo_ft_synthesize_t +cairo_ft_font_face_get_synthesize +cairo_ft_font_face_set_synthesize +cairo_ft_font_face_unset_synthesize +
+ +
+cairo-win32-fonts +CAIRO_HAS_WIN32_FONT +cairo_win32_font_face_create_for_logfontw +cairo_win32_font_face_create_for_hfont +cairo_win32_font_face_create_for_logfontw_hfont +cairo_win32_scaled_font_select_font +cairo_win32_scaled_font_done_font +cairo_win32_scaled_font_get_metrics_factor +cairo_win32_scaled_font_get_logical_to_device +cairo_win32_scaled_font_get_device_to_logical +
+ +
+cairo-dwrite-fonts +CAIRO_HAS_DWRITE_FONT +cairo_dwrite_font_face_create_for_dwrite_fontface +cairo_dwrite_font_face_get_rendering_params +cairo_dwrite_font_face_set_rendering_params +cairo_dwrite_font_face_get_measuring_mode +cairo_dwrite_font_face_set_measuring_mode +
+ +
+cairo-quartz-fonts +CAIRO_HAS_QUARTZ_FONT +cairo_quartz_font_face_create_for_cgfont +cairo_quartz_font_face_create_for_atsu_font_id +
+ +
+cairo-user-fonts +CAIRO_HAS_USER_FONT +cairo_user_scaled_font_init_func_t +cairo_user_scaled_font_render_glyph_func_t +cairo_user_scaled_font_text_to_glyphs_func_t +cairo_user_scaled_font_unicode_to_glyph_func_t +cairo_user_font_face_create +cairo_user_font_face_set_init_func +cairo_user_font_face_get_init_func +cairo_user_font_face_set_render_glyph_func +cairo_user_font_face_get_render_glyph_func +cairo_user_font_face_set_render_color_glyph_func +cairo_user_font_face_get_render_color_glyph_func +cairo_user_font_face_set_unicode_to_glyph_func +cairo_user_font_face_get_unicode_to_glyph_func +cairo_user_font_face_set_text_to_glyphs_func +cairo_user_font_face_get_text_to_glyphs_func +cairo_user_scaled_font_get_foreground_marker +cairo_user_scaled_font_get_foreground_source +
+ +
+cairo-image +CAIRO_HAS_IMAGE_SURFACE +cairo_format_t +cairo_format_stride_for_width +cairo_image_surface_create +cairo_image_surface_create_for_data +cairo_image_surface_get_data +cairo_image_surface_get_format +cairo_image_surface_get_width +cairo_image_surface_get_height +cairo_image_surface_get_stride +
+ +
+cairo-pdf +CAIRO_HAS_PDF_SURFACE +CAIRO_PDF_OUTLINE_ROOT +cairo_pdf_outline_flags_t +cairo_pdf_metadata_t +cairo_pdf_surface_create +cairo_pdf_surface_create_for_stream +cairo_pdf_surface_restrict_to_version +cairo_pdf_version_t +cairo_pdf_get_versions +cairo_pdf_version_to_string +cairo_pdf_surface_set_size +cairo_pdf_surface_add_outline +cairo_pdf_surface_set_metadata +cairo_pdf_surface_set_custom_metadata +cairo_pdf_surface_set_page_label +cairo_pdf_surface_set_thumbnail_size +
+ +
+cairo-png +CAIRO_HAS_PNG_FUNCTIONS +cairo_image_surface_create_from_png +cairo_read_func_t +cairo_image_surface_create_from_png_stream +cairo_surface_write_to_png +cairo_write_func_t +cairo_surface_write_to_png_stream +
+ +
+cairo-ps +CAIRO_HAS_PS_SURFACE +cairo_ps_surface_create +cairo_ps_surface_create_for_stream +cairo_ps_surface_restrict_to_level +cairo_ps_level_t +cairo_ps_get_levels +cairo_ps_level_to_string +cairo_ps_surface_set_eps +cairo_ps_surface_get_eps +cairo_ps_surface_set_size +cairo_ps_surface_dsc_begin_setup +cairo_ps_surface_dsc_begin_page_setup +cairo_ps_surface_dsc_comment +
+ +
+cairo-recording +CAIRO_HAS_RECORDING_SURFACE +cairo_recording_surface_create +cairo_recording_surface_ink_extents +cairo_recording_surface_get_extents +
+ +
+cairo-win32 +CAIRO_HAS_WIN32_SURFACE +cairo_win32_surface_create +cairo_win32_surface_create_with_dib +cairo_win32_surface_create_with_ddb +cairo_win32_surface_create_with_format +cairo_win32_printing_surface_create +cairo_win32_surface_get_dc +cairo_win32_surface_get_image + +SB_NONE +SHADEBLENDCAPS +WIN32_FONT_LOGICAL_SCALE +cairo_win32_device_t +cairo_win32_display_surface_t +cairo_win32_printing_surface_t +cairo_win32_surface_t +to_win32_device +to_win32_device_from_surface +to_win32_display_surface +to_win32_printing_surface +to_win32_surface +
+ +
+cairo-quartz +CAIRO_HAS_QUARTZ_SURFACE +CAIRO_HAS_QUARTZ_IMAGE_SURFACE +cairo_quartz_surface_create +cairo_quartz_surface_create_for_cg_context +cairo_quartz_surface_get_cg_context +cairo_quartz_image_surface_create +cairo_quartz_image_surface_get_image +
+ +
+cairo-xlib +CAIRO_HAS_XLIB_SURFACE +CAIRO_HAS_XLIB_XCB_FUNCTIONS +cairo_xlib_surface_create +cairo_xlib_surface_create_for_bitmap +cairo_xlib_surface_set_size +cairo_xlib_surface_get_display +cairo_xlib_surface_get_screen +cairo_xlib_surface_set_drawable +cairo_xlib_surface_get_drawable +cairo_xlib_surface_get_visual +cairo_xlib_surface_get_width +cairo_xlib_surface_get_height +cairo_xlib_surface_get_depth +cairo_xlib_device_debug_cap_xrender_version +cairo_xlib_device_debug_get_precision +cairo_xlib_device_debug_set_precision +
+ +
+cairo-xlib-xrender +CAIRO_HAS_XLIB_XRENDER_SURFACE +cairo_xlib_surface_create_with_xrender_format +cairo_xlib_surface_get_xrender_format +
+ +
+cairo-xcb +CAIRO_HAS_XCB_SURFACE +CAIRO_HAS_XCB_SHM_FUNCTIONS +cairo_xcb_surface_create +cairo_xcb_surface_create_for_bitmap +cairo_xcb_surface_create_with_xrender_format +cairo_xcb_surface_set_size +cairo_xcb_surface_set_drawable +cairo_xcb_device_get_connection +cairo_xcb_device_debug_cap_xrender_version +cairo_xcb_device_debug_cap_xshm_version +cairo_xcb_device_debug_get_precision +cairo_xcb_device_debug_set_precision +
+ +
+cairo-svg +CAIRO_HAS_SVG_SURFACE +cairo_svg_surface_create +cairo_svg_surface_create_for_stream +cairo_svg_surface_get_document_unit +cairo_svg_surface_set_document_unit +cairo_svg_surface_restrict_to_version +cairo_svg_version_t +cairo_svg_get_versions +cairo_svg_version_to_string +cairo_svg_unit_t +
+ +
+cairo-device +cairo_device_t +cairo_device_reference +cairo_device_destroy +cairo_device_status +cairo_device_finish +cairo_device_flush +cairo_device_type_t +cairo_device_get_type +cairo_device_get_reference_count +cairo_device_set_user_data +cairo_device_get_user_data +cairo_device_acquire +cairo_device_release +cairo_device_observer_elapsed +cairo_device_observer_fill_elapsed +cairo_device_observer_glyphs_elapsed +cairo_device_observer_mask_elapsed +cairo_device_observer_paint_elapsed +cairo_device_observer_print +cairo_device_observer_stroke_elapsed +
+ +
+cairo-surface +CAIRO_HAS_MIME_SURFACE +CAIRO_MIME_TYPE_CCITT_FAX +CAIRO_MIME_TYPE_CCITT_FAX_PARAMS +CAIRO_MIME_TYPE_EPS +CAIRO_MIME_TYPE_EPS_PARAMS +CAIRO_MIME_TYPE_JBIG2 +CAIRO_MIME_TYPE_JBIG2_GLOBAL +CAIRO_MIME_TYPE_JBIG2_GLOBAL_ID +CAIRO_MIME_TYPE_JP2 +CAIRO_MIME_TYPE_JPEG +CAIRO_MIME_TYPE_PNG +CAIRO_MIME_TYPE_URI +CAIRO_MIME_TYPE_UNIQUE_ID +cairo_surface_t +cairo_content_t +cairo_surface_create_similar +cairo_surface_create_similar_image +cairo_surface_create_for_rectangle +cairo_surface_reference +cairo_surface_destroy +cairo_surface_status +cairo_surface_finish +cairo_surface_flush +cairo_surface_get_device +cairo_surface_get_font_options +cairo_surface_get_content +cairo_surface_mark_dirty +cairo_surface_mark_dirty_rectangle +cairo_surface_set_device_offset +cairo_surface_get_device_offset +cairo_surface_get_device_scale +cairo_surface_set_device_scale +cairo_surface_set_fallback_resolution +cairo_surface_get_fallback_resolution +cairo_surface_type_t +cairo_surface_get_type +cairo_surface_get_reference_count +cairo_surface_set_user_data +cairo_surface_get_user_data +cairo_surface_copy_page +cairo_surface_show_page +cairo_surface_has_show_text_glyphs +cairo_surface_set_mime_data +cairo_surface_get_mime_data +cairo_surface_supports_mime_type +cairo_surface_map_to_image +cairo_surface_unmap_image +
+ +
+cairo-surface-observer +CAIRO_HAS_OBSERVER_SURFACE +cairo_surface_create_observer +cairo_surface_observer_add_fill_callback +cairo_surface_observer_add_finish_callback +cairo_surface_observer_add_flush_callback +cairo_surface_observer_add_glyphs_callback +cairo_surface_observer_add_mask_callback +cairo_surface_observer_add_paint_callback +cairo_surface_observer_add_stroke_callback +cairo_surface_observer_callback_t +cairo_surface_observer_elapsed +cairo_surface_observer_mode_t +cairo_surface_observer_print +
+ +
+cairo-version +CAIRO_VERSION +CAIRO_VERSION_MAJOR +CAIRO_VERSION_MINOR +CAIRO_VERSION_MICRO +CAIRO_VERSION_STRING +CAIRO_VERSION_ENCODE +CAIRO_VERSION_STRINGIZE +cairo_version +cairo_version_string + +CAIRO_VERSION_STRINGIZE_ +
+ +
+cairo-region +cairo_region_t +cairo_region_create +cairo_region_create_rectangle +cairo_region_create_rectangles +cairo_region_copy +cairo_region_reference +cairo_region_destroy +cairo_region_status +cairo_region_get_extents +cairo_region_num_rectangles +cairo_region_get_rectangle +cairo_region_is_empty +cairo_region_contains_point +cairo_region_overlap_t +cairo_region_contains_rectangle +cairo_region_equal +cairo_region_translate +cairo_region_intersect +cairo_region_intersect_rectangle +cairo_region_subtract +cairo_region_subtract_rectangle +cairo_region_union +cairo_region_union_rectangle +cairo_region_xor +cairo_region_xor_rectangle +
+ +
+cairo-pattern +cairo_pattern_t +cairo_pattern_add_color_stop_rgb +cairo_pattern_add_color_stop_rgba +cairo_pattern_get_color_stop_count +cairo_pattern_get_color_stop_rgba +cairo_pattern_create_rgb +cairo_pattern_create_rgba +cairo_pattern_get_rgba +cairo_pattern_create_for_surface +cairo_pattern_get_surface +cairo_pattern_create_linear +cairo_pattern_get_linear_points +cairo_pattern_create_radial +cairo_pattern_get_radial_circles +cairo_pattern_create_mesh +cairo_mesh_pattern_begin_patch +cairo_mesh_pattern_end_patch +cairo_mesh_pattern_move_to +cairo_mesh_pattern_line_to +cairo_mesh_pattern_curve_to +cairo_mesh_pattern_set_control_point +cairo_mesh_pattern_set_corner_color_rgb +cairo_mesh_pattern_set_corner_color_rgba +cairo_mesh_pattern_get_patch_count +cairo_mesh_pattern_get_path +cairo_mesh_pattern_get_control_point +cairo_mesh_pattern_get_corner_color_rgba +cairo_pattern_reference +cairo_pattern_destroy +cairo_pattern_status +cairo_extend_t +cairo_pattern_set_extend +cairo_pattern_get_extend +cairo_filter_t +cairo_pattern_set_filter +cairo_pattern_get_filter +cairo_pattern_set_matrix +cairo_pattern_get_matrix +cairo_pattern_type_t +cairo_pattern_get_type +cairo_pattern_get_reference_count +cairo_pattern_set_user_data +cairo_pattern_get_user_data +cairo_dither_t +cairo_pattern_set_dither +cairo_pattern_get_dither +
+ +
+cairo-raster-source +cairo_pattern_create_raster_source +cairo_raster_source_pattern_set_callback_data +cairo_raster_source_pattern_get_callback_data +cairo_raster_source_pattern_set_acquire +cairo_raster_source_pattern_get_acquire +cairo_raster_source_pattern_set_snapshot +cairo_raster_source_pattern_get_snapshot +cairo_raster_source_pattern_set_copy +cairo_raster_source_pattern_get_copy +cairo_raster_source_pattern_set_finish +cairo_raster_source_pattern_get_finish +cairo_raster_source_acquire_func_t +cairo_raster_source_release_func_t +cairo_raster_source_snapshot_func_t +cairo_raster_source_copy_func_t +cairo_raster_source_finish_func_t +
+ +
+cairo-tag +CAIRO_TAG_DEST +CAIRO_TAG_LINK +CAIRO_TAG_CONTENT +CAIRO_TAG_CONTENT_REF +cairo_tag_begin +cairo_tag_end +
+ +
+cairo-matrix +cairo_matrix_t +cairo_matrix_init +cairo_matrix_init_identity +cairo_matrix_init_translate +cairo_matrix_init_scale +cairo_matrix_init_rotate +cairo_matrix_translate +cairo_matrix_scale +cairo_matrix_rotate +cairo_matrix_invert +cairo_matrix_multiply +cairo_matrix_transform_distance +cairo_matrix_transform_point +
+ +
+cairo-status +cairo_status_t +cairo_status_to_string +cairo_debug_reset_static_data +
+ +
+cairo-font-face +cairo_font_face_t +cairo_font_face_reference +cairo_font_face_destroy +cairo_font_face_status +cairo_font_type_t +cairo_font_face_get_type +cairo_font_face_get_reference_count +cairo_font_face_set_user_data +cairo_font_face_get_user_data +
+ +
+cairo-scaled-font +cairo_scaled_font_t +cairo_scaled_font_create +cairo_scaled_font_reference +cairo_scaled_font_destroy +cairo_scaled_font_status +cairo_font_extents_t +cairo_scaled_font_extents +cairo_text_extents_t +cairo_scaled_font_text_extents +cairo_scaled_font_glyph_extents +cairo_scaled_font_text_to_glyphs +cairo_scaled_font_get_font_face +cairo_scaled_font_get_font_options +cairo_scaled_font_get_font_matrix +cairo_scaled_font_get_ctm +cairo_scaled_font_get_scale_matrix +cairo_scaled_font_get_type +cairo_scaled_font_get_reference_count +cairo_scaled_font_set_user_data +cairo_scaled_font_get_user_data +
+ +
+cairo-font-options +cairo_font_options_t +cairo_font_options_create +cairo_font_options_copy +cairo_font_options_destroy +cairo_font_options_status +cairo_font_options_merge +cairo_font_options_hash +cairo_font_options_equal +cairo_font_options_set_antialias +cairo_font_options_get_antialias +cairo_subpixel_order_t +cairo_font_options_set_subpixel_order +cairo_font_options_get_subpixel_order +cairo_hint_style_t +cairo_font_options_set_hint_style +cairo_font_options_get_hint_style +cairo_hint_metrics_t +cairo_font_options_set_hint_metrics +cairo_font_options_get_hint_metrics +cairo_font_options_get_variations +cairo_font_options_set_variations +cairo_color_mode_t +cairo_font_options_set_color_mode +cairo_font_options_get_color_mode +CAIRO_COLOR_PALETTE_DEFAULT +cairo_font_options_set_color_palette +cairo_font_options_get_color_palette +cairo_font_options_set_custom_palette_color +cairo_font_options_get_custom_palette_color +
+ +
+cairo-types +cairo_bool_t +cairo_user_data_key_t +cairo_destroy_func_t +cairo_rectangle_int_t +
+ +
+cairo-transforms +cairo_translate +cairo_scale +cairo_rotate +cairo_transform +cairo_set_matrix +cairo_get_matrix +cairo_identity_matrix +cairo_user_to_device +cairo_user_to_device_distance +cairo_device_to_user +cairo_device_to_user_distance +
+ + +
+cairo-paths +cairo_path_t +cairo_path_data_t +cairo_path_data_type_t +cairo_copy_path +cairo_copy_path_flat +cairo_path_destroy +cairo_append_path +cairo_has_current_point +cairo_get_current_point +cairo_new_path +cairo_new_sub_path +cairo_close_path +cairo_arc +cairo_arc_negative +cairo_curve_to +cairo_line_to +cairo_move_to +cairo_rectangle +cairo_glyph_path +cairo_text_path +cairo_rel_curve_to +cairo_rel_line_to +cairo_rel_move_to +cairo_path_extents +
+ +
+cairo-text +cairo_glyph_t +cairo_font_slant_t +cairo_font_weight_t +cairo_text_cluster_t +cairo_text_cluster_flags_t +cairo_select_font_face +cairo_set_font_size +cairo_set_font_matrix +cairo_get_font_matrix +cairo_set_font_options +cairo_get_font_options +cairo_set_font_face +cairo_get_font_face +cairo_set_scaled_font +cairo_get_scaled_font +cairo_show_text +cairo_show_glyphs +cairo_show_text_glyphs +cairo_font_extents +cairo_text_extents +cairo_glyph_extents +cairo_toy_font_face_create +cairo_toy_font_face_get_family +cairo_toy_font_face_get_slant +cairo_toy_font_face_get_weight +cairo_glyph_allocate +cairo_glyph_free +cairo_text_cluster_allocate +cairo_text_cluster_free +
+ +
+cairo +cairo_t +cairo_create +cairo_reference +cairo_destroy +cairo_status +cairo_save +cairo_restore +cairo_get_target +cairo_push_group +cairo_push_group_with_content +cairo_pop_group +cairo_pop_group_to_source +cairo_get_group_target +cairo_set_source_rgb +cairo_set_source_rgba +cairo_set_source +cairo_set_source_surface +cairo_get_source +cairo_antialias_t +cairo_set_antialias +cairo_get_antialias +cairo_set_dash +cairo_get_dash_count +cairo_get_dash +cairo_fill_rule_t +cairo_set_fill_rule +cairo_get_fill_rule +cairo_line_cap_t +cairo_set_line_cap +cairo_get_line_cap +cairo_line_join_t +cairo_set_line_join +cairo_get_line_join +cairo_set_line_width +cairo_get_line_width +cairo_set_miter_limit +cairo_get_miter_limit +cairo_operator_t +cairo_set_operator +cairo_get_operator +cairo_set_tolerance +cairo_get_tolerance +cairo_clip +cairo_clip_preserve +cairo_clip_extents +cairo_in_clip +cairo_reset_clip +cairo_rectangle_t +cairo_rectangle_list_t +cairo_rectangle_list_destroy +cairo_copy_clip_rectangle_list +cairo_fill +cairo_fill_preserve +cairo_fill_extents +cairo_in_fill +cairo_mask +cairo_mask_surface +cairo_paint +cairo_paint_with_alpha +cairo_stroke +cairo_stroke_preserve +cairo_stroke_extents +cairo_in_stroke +cairo_copy_page +cairo_show_page +cairo_get_reference_count +cairo_set_user_data +cairo_get_user_data +cairo_set_hairline +cairo_get_hairline + +cairo_public +CAIRO_BEGIN_DECLS +CAIRO_END_DECLS +cairo_current_font_extents +cairo_get_font_extents +cairo_current_operator +cairo_current_tolerance +cairo_current_point +cairo_current_fill_rule +cairo_current_line_width +cairo_current_line_cap +cairo_current_line_join +cairo_current_miter_limit +cairo_current_matrix +cairo_current_target_surface +cairo_get_status +cairo_concat_matrix +cairo_scale_font +cairo_select_font +cairo_transform_font +cairo_transform_point +cairo_transform_distance +cairo_inverse_transform_point +cairo_inverse_transform_distance +cairo_init_clip +cairo_surface_create_for_image +cairo_default_matrix +cairo_matrix_set_affine +cairo_matrix_set_identity +cairo_pattern_add_color_stop +cairo_set_rgb_color +cairo_set_pattern +cairo_xlib_surface_create_for_pixmap_with_visual +cairo_xlib_surface_create_for_window_with_visual +cairo_xcb_surface_create_for_pixmap_with_visual +cairo_xcb_surface_create_for_window_with_visual +cairo_ps_surface_set_dpi +cairo_pdf_surface_set_dpi +cairo_svg_surface_set_dpi +cairo_current_path +cairo_current_path_flat +cairo_get_path +cairo_get_path_flat +cairo_set_alpha +cairo_show_surface +cairo_copy +cairo_surface_set_repeat +cairo_surface_set_matrix +cairo_surface_get_matrix +cairo_surface_set_filter +cairo_surface_get_filter +cairo_matrix_create +cairo_matrix_destroy +cairo_matrix_copy +cairo_matrix_get_affine +cairo_set_target_surface +cairo_set_target_image +cairo_set_target_pdf +cairo_set_target_png +cairo_set_target_ps +cairo_set_target_quartz +cairo_set_target_win32 +cairo_set_target_xcb +cairo_set_target_drawable +cairo_get_status_string +cairo_status_string +CAIRO_FONT_TYPE_ATSUI +cairo_atsui_font_face_create_for_atsu_font_id +CAIRO_HAS_GOBJECT_FUNCTIONS +
+ +
+cairo-script +CAIRO_HAS_SCRIPT_SURFACE +cairo_script_create +cairo_script_create_for_stream +cairo_script_from_recording_surface +cairo_script_get_mode +cairo_script_mode_t +cairo_script_set_mode +cairo_script_surface_create +cairo_script_surface_create_for_target +cairo_script_write_comment +
+ +
+cairo-tee +CAIRO_HAS_TEE_SURFACE +cairo_tee_surface_create +cairo_tee_surface_add +cairo_tee_surface_index +cairo_tee_surface_remove +
diff --git a/local/recipes/libs/cairo/source/doc/public/cairo.types b/local/recipes/libs/cairo/source/doc/public/cairo.types new file mode 100644 index 0000000000..e69de29bb2 diff --git a/local/recipes/libs/cairo/source/doc/public/check-doc-coverage.sh b/local/recipes/libs/cairo/source/doc/public/check-doc-coverage.sh new file mode 100755 index 0000000000..648ca1212e --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/public/check-doc-coverage.sh @@ -0,0 +1,54 @@ +#!/bin/sh + +LC_ALL=C +export LC_ALL + +if test -z "$DOC_MODULE"; then + # extract from Makefile + eval `grep '^DOC_MODULE' Makefile | sed 's/ //g'` + if test -z "$DOC_MODULE"; then + echo Failed extracting DOC_MODULE from Makefile 1>&2 + echo Try setting DOC_MODULE env var manually 1>&2 + exit 1 + fi +fi + +if test -n "$REPORT_FILES"; then + $MAKE $REPORT_FILES || exit 1 +fi + +test -z "$srcdir" && srcdir=. +stat=0 + +if test -f "$DOC_MODULE-undeclared.txt"; then + undeclared=`cat "$DOC_MODULE-undeclared.txt"` + if test -n "$undeclared"; then + echo "*** ERROR: Undeclared documentation symbols:" 1>&2 + cat "$DOC_MODULE-undeclared.txt" 1>&2 + stat=1 + fi +fi >&2 +if test -f "$DOC_MODULE-unused.txt"; then + unused=`cat "$DOC_MODULE-unused.txt"` + if test -n "$unused"; then + echo "*** ERROR: Unused documented symbols:" 1>&2 + cat "$DOC_MODULE-unused.txt" 1>&2 + stat=1 + fi +fi >&2 +if test -f "$DOC_MODULE-undocumented.txt"; then + if grep '^0 symbols incomplete' "$DOC_MODULE-undocumented.txt" >/dev/null && + grep '^0 not documented' "$DOC_MODULE-undocumented.txt" >/dev/null; then + : + else + echo "*** ERROR: Incomplete or undocumented symbols:" 1>&2 + cat "$DOC_MODULE-undocumented.txt" 1>&2 + stat=1 + fi +fi >&2 + +if test $stat != 0; then + echo "*** IGNORING ERROR ***" +fi +#exit $stat +exit 0 diff --git a/local/recipes/libs/cairo/source/doc/public/check-doc-syntax.sh b/local/recipes/libs/cairo/source/doc/public/check-doc-syntax.sh new file mode 100755 index 0000000000..129065d2ac --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/public/check-doc-syntax.sh @@ -0,0 +1,12 @@ +#!/bin/sh + +LC_ALL=C +export LC_ALL + +test -z "$srcdir" && srcdir=. +test -z "$top_srcdir" && top_srcdir=$srcdir/../.. + +SGML_DOCS=true +FILES=`echo $srcdir/tmpl/*.sgml` + +. "$top_srcdir/src/check-doc-syntax.sh" diff --git a/local/recipes/libs/cairo/source/doc/public/language-bindings.xml b/local/recipes/libs/cairo/source/doc/public/language-bindings.xml new file mode 100644 index 0000000000..1d04ec0186 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/public/language-bindings.xml @@ -0,0 +1,734 @@ + + Creating a language binding for cairo + + While cairo is implemented and C, and has a C API, it is expected + that many users of cairo will be using it from languages other + than C. The glue that connects the core cairo library to another + language is known as a language + binding. This appendix attempts to collect together + issues that come up when creating a language bindings for cairo + and present standardized solutions to promote consistency among + the different language bindings. + + + General considerations + + The naming of the central cairo_t type is a + special exception. The object is “a cairo context†not “a + cairoâ€, and names such as cairo_t rather than + cairo_context_t and + cairo_set_source() rather than + cairo_context_set_source() are simply + abbreviations to make the C API more palatable. In languages + which have object-oriented syntax, this abbreviation is much + less useful. In fact, if ‘Cairo’ is used as a namespace, then + in many languages, you'd end up with a ridiculous type name + like ‘Cairo.Cairo’. For this reason, and for inter-language + consistency all object-oriented languages should name this + type as if it were cairo_context_t. + + + The punctuation and casing of the type names and + method names of cairo should be changed to match the general + convention of the language. In Java, where type names are written + in StudlyCaps and method names in javaCaps, cairo_font_extents_t + will become FontExtents and + cairo_set_source(cr,source), + cr.setSource(source). + As compared to changing the punctuation, and casing, much + more reluctance should be used in changing the method names + themselves. Even if get is usually omitted from getters in + your language, you shouldn't bind cairo_get_source() as + cr.source(). + + + + Memory management + + The objects in cairo can roughly be divided into two types: + reference-counted, opaque types like + cairo_surface_t + and plain structures like + cairo_glyph_t. + cairo_path_t + and + cairo_path_data_t + are special cases and are treated separately in this appendix. + + + Refcounted opaque types all have a + ..._reference() + function to increase the refcount by one and a + ..._destroy() to decrease the refcount + by one. These should not be exposed to the user of the language + binding, but rather used to implement memory management within + the language binding. The simplest way to do memory management + for a language binding is to treat the language binding object + as a simple handle to the cairo object. The language binding + object references the cairo object, and unreferences it when + finalized. This is the recommended method, though there are + a couple of caveats to be noted: + + + + + Equality won't work as expected. You can have two language + objects for the same cairo and they won't necessarily + compare equal. If the language allows customizing the + equality operation, then this is fixable by comparing + the underlying pointers. It also can be fixed by creating + at most one language object per cairo object, and + uniquifying via a pin table (a hash + table that goes from cairo object to language object). + For cairo_surface_t you can use also + cairo_surface_set_user_data() + instead of a separate pin table. + + + + + Derivation from the language object doesn't work because + you can lose the language object while keeping the Cairo + object. Code like: + + +public class MySurface (ImageSurface) { + public MySurface (width, height) { + super (Format.ARGB32, width, height); + } + public int get42 () { + return 42; + } +} + + cr = Cairo(MySurface(width, height)); + surface = cr.getTarget(); + + + Can result in surface containing an + ImageSurface not a MySurface. + This is not easily fixable without creating memory leaks, + and it's probably best to simply forbid deriving from the + language objects. + + + + + When a plain structure is used as a return value from cairo, + this is done by passing it as a “out parameterâ€. + + +cairo_font_extents_t extents; + +cairo_font_extents (cr, &extents); + + In a language binding, this should typically be treated + as a return value: + + +FontExtents extents = cr.fontExtents (); + + A language binding has a choice in how it implements the + language objects for plain structures. It can use a pure + language object with fields corresponding to those of the C + structure, and convert from and to the C structure when calling + cairo functions or converting cairo return values. Or it + can keep a pointer to the C structure internally and wrap + it inside a language object much like occurs for refcounted + objects. The choice should be invisible to the user: they should + be able to imagine that it is implemented as a pure language + object. + + + + Multiple return values + + There are a number of functions in the cairo API that have + multiple out parameters or + in-out parameters. In some languages + these can be translated into multiple return values. In Python, + what is: + + +cairo_user_to_device (cr, &x, &y); + + can by mapped to: + + +(x, y) = cr.user_to_device (cr, x, y); + + but many languages don't have provisions for multiple return + values, so it is necessary to introduce auxiliary types. + Most of the functions that require the auxiliary types + require a type that would, in C, look like + + +typedef struct _cairo_point cairo_point_t; +struct _cairo_point { + double x; + double y; +} + + The same type should be used both for functions that use a pair + of coordinates as an absolute position, and functions that use + a pair of coordinates as a displacement. While an argument could + be made that having a separate “distance†type is more correct, + it is more likely just to confuse users. + + +void +cairo_user_to_device (cairo_t *cr, double *x, double *y); + +void +cairo_user_to_device_distance (cairo_t *cr, double *dx, double *dy); + +void +cairo_device_to_user (cairo_t *cr, double *x, double *y); + +void +cairo_device_to_user_distance (cairo_t *cr, double *dx, double *dy); + +void +cairo_matrix_transform_distance (cairo_matrix_t *matrix, double *dx, double *dy); + +void +cairo_matrix_transform_point (cairo_matrix_t *matrix, double *x, double *y); + +void +cairo_get_current_point (cairo_t *cr, double *x, double *y); + + + There are also a couple of functions that return four values + representing a rectangle. These should be mapped to a + “rectangle†type that looks like: + + +typedef struct _cairo_rectangle cairo_rectangle_t; +struct _cairo_rectangle { + double x; + double y; + double width; + double height; +} + + The C function returns the rectangle as a set of two points to + facilitate rounding to integral extents, but this isn't worth + adding a “box†type to go along with the more obvious + “rectangle†representation. + + + Q: Would it make sense here to define a standard + cairo_rectangle_round() method + that language bindings should map? + + +void +cairo_stroke_extents (cairo_t *cr, + double *x1, double *y1, + double *x2, double *y2); + +void +cairo_fill_extents (cairo_t *cr, + double *x1, double *y1, + double *x2, double *y2); + + + + Overloading and optional arguments + + Function overloading (having a several variants of a function + with the same name and different arguments) is a language + feature available in many languages but not in C. + + + In general, language binding authors should use restraint in + combining functions in the cairo API via function + overloading. What may seem like an obvious overload now may + turn out to be strange with future additions to cairo. + It might seem logical to make + cairo_set_source_rgb() + an overload of cairo_set_source(), but future plans to add + cairo_set_source_rgb_premultiplied(), + which will also take three doubles make this a bad idea. For + this reason, only the following pairs of functions should + be combined via overloading + + +void +cairo_set_source (cairo_t *cr, cairo_pattern_t *source); + +void +cairo_set_source_surface (cairo_t *cr, + cairo_surface_t *source, + double surface_x, + double surface_y); + +void +cairo_mask (cairo_t *cr, + cairo_pattern_t *pattern); + +void +cairo_mask_surface (cairo_t *cr, + cairo_surface_t *surface, + double surface_x, + double surface_y); + +cairo_surface_t * +cairo_image_surface_create (cairo_format_t format, + int width, + int height); +cairo_surface_t * +cairo_image_surface_create_for_data (unsigned char *data, + cairo_format_t format, + int width, + int height, + int stride); + +cairo_status_t +cairo_surface_write_to_png (cairo_surface_t *surface, + const char *filename); + +cairo_status_t +cairo_surface_write_to_png_stream (cairo_surface_t *surface, + cairo_write_func_t write_func, + void *closure); + +cairo_surface_t * +cairo_image_surface_create_from_png (const char *filename); + +cairo_surface_t * +cairo_image_surface_create_from_png_stream (cairo_read_func_t read_func, + void *closure); + + + Note that there are cases where all constructors for a type + aren't overloaded together. For example + cairo_image_surface_create_from_png() + should not be overloaded together with + cairo_image_surface_create(). + In such cases, the remaining constructors will typically need to + be bound as static methods. In Java, for example, we might have: + + +Surface surface1 = ImageSurface(Format.RGB24, 100, 100); +Surface surface2 = ImageSurface.createFromPNG("camera.png"); + + Some other overloads that add combinations not found in C may be + convenient for users for language bindings that provide + cairo_point_t and cairo_rectangle_t + types, for example: + + +void +cairo_move_to (cairo_t *cr, + cairo_point_t *point); +void +cairo_rectangle (cairo_t *cr, + cairo_rectangle_t *rectangle); + + + + Streams and File I/O + + Various places in the cairo API deal with reading and writing + data, whether from and to files, or to other sources and + destinations. In these cases, what is typically provided in the + C API is a simple version that just takes a filename, and a + complex version that takes a callback function. + An example is the PNG handling functions: + + +cairo_surface_t * +cairo_image_surface_create_from_png (const char *filename); + +cairo_surface_t * +cairo_image_surface_create_from_png_stream (cairo_read_func_t read_func, + void *closure); + +cairo_status_t +cairo_surface_write_to_png (cairo_surface_t *surface, + const char *filename); + +cairo_status_t +cairo_surface_write_to_png_stream (cairo_surface_t *surface, + cairo_write_func_t write_func, + void *closure); + + The expectation is that the filename version will be mapped + literally in the language binding, but the callback version + will be mapped to a version that takes a language stream + object. For example, in Java, the four functions above + might be mapped to: + + +static public ImageSurface createFromPNG (String filename) throws IOException; +static public ImageSurface createFromPNG (InputStream stream) throws IOException; +public void writeToPNG (String filename) throws IOException; +public void writeToPNG (OutputStream stream) throws IOException; + + + In many cases, it will be better to + implement the filename version internally + using the stream version, rather than building it on top of the + filename version in C. The reason for this is that will + naturally give a more standard handling of file errors for + the language, as seen in the above Java example, where + createFromPNG() is marked as raising + an exception. Propagating exceptions from inside the callback + function to the caller will pose a challenge to the language + binding implementor, since an exception must not propagate + through the Cairo code. A technique that will be useful in + some cases is to catch the exception in the callback, + store the exception object inside a structure pointed to by + closure, and then rethrow it once + the function returns. + + + I'm not sure how to handle this for + cairo_pdf_surface_create_for_stream(). + Other than keep a “exception to rethrow†thread-specific + variable + that is checked after every call to a Cairo + function. + + + + Error handling + + The error handling approach in C for Cairo has multiple + elements: + + + + When a method on an object fails, the object is put into + an error state. Subsequent operations on the object do + nothing. The status of the object can be queried with + a function like status(). + + + Constructors, rather than + returning NULL on out-of-memory failure, + return a special singleton object on which all + operations do nothing. Retrieving the status of the + singleton object returns CAIRO_STATUS_NO_MEMORY + + + + Errors propagate from object to object. Setting a pattern + in an out-of-memory state as the source of a + cairo_t puts the type into an error state. + + + + A language binding could copy the C approach, and for a + language without exceptions, this is likely the right thing + to do. However, for a language with exceptions, exposing + a completely different style of error handling for cairo + would be strange. So, instead, status should be checked + after every call to cairo, and exceptions thrown as necessary. + + + One problem that can arise with this, in languages + where handling exceptions is mandatory (like Java), is that almost + every cairo function can result in a status being set, + usually because of an out-of-memory condition. This could make + cairo hard to use. To resolve this problem, let's classify then + cairo status codes: + + +/* Memory */ +CAIRO_STATUS_NO_MEMORY, + +/* Programmer error */ +CAIRO_STATUS_INVALID_RESTORE +CAIRO_STATUS_INVALID_POP_GROUP +CAIRO_STATUS_NO_CURRENT_POINT +CAIRO_STATUS_INVALID_MATRIX +CAIRO_STATUS_NO_TARGET_SURFACE +CAIRO_STATUS_INVALID_STRING +CAIRO_STATUS_SURFACE_FINISHED +CAIRO_STATUS_BAD_NESTING + +/* Language binding implementation */ +CAIRO_STATUS_NULL_POINTER +CAIRO_STATUS_INVALID_PATH_DATA +CAIRO_STATUS_SURFACE_TYPE_MISMATCH + +/* Other */ +CAIRO_STATUS_READ_ERROR +CAIRO_STATUS_WRITE_ERROR + + + If we look at these, the + CAIRO_STATUS_NO_MEMORY + should map to the native out-of-memory exception, which could + happen at any point in any case. Most of the others indicate + programmer error, and handling them in user code would be + silly. These should be mapped into whatever the language uses + for assertion failures, rather than errors that are normally + handled. (In Java, a subclass of Error rather than Exception, + perhaps.) And CAIRO_STATUS_READ_ERROR, + and CAIRO_STATUS_WRITE_ERROR can occur + only in very specific places. (In fact, as described + in , these errors may be + mapped into the language's native I/O error types.) + So, there really aren't exceptions that the programmer must + handle at most points in the Cairo API. + + + + Patterns + + The cairo C API allows for creating a number of different types + of patterns. All of these different types of patterns map to + cairo_pattern_t + in C, but in an object oriented language, there should instead + be a hierarchy of types. (The functions that should map to + constructors or static methods for the various types are listed + after the type, methods on that type are listed below. Note that + cairo_pattern_create_rgb() and cairo_pattern_create_rgba() + should not be overloaded with each other as a SolidPattern() + constructor, but should appear as static methods instead. This + is to maintain code clarity by making it clear how the arguments + relate to color components.) + + +cairo_pattern_t + cairo_pattern_set_matrix() + cairo_pattern_get_matrix() + cairo_solid_pattern_t (cairo_pattern_create_rgb() and cairo_pattern_create_rgba()) + cairo_surface_pattern_t (cairo_pattern_create_for_surface()) + cairo_pattern_set_extend() + cairo_pattern_get_extend() + cairo_pattern_set_filter() + cairo_pattern_get_filter() + cairo_gradient_t + cairo_pattern_add_color_stop_rgb() + cairo_pattern_add_color_stop_rgba() + cairo_linear_gradient_t (cairo_pattern_create_linear()) + cairo_radial_gradient_t (cairo_pattern_create_radial()) + cairo_mesh_t (cairo_pattern_create_mesh()) + cairo_mesh_pattern_begin_patch() + cairo_mesh_pattern_end_patch() + cairo_mesh_pattern_move_to() + cairo_mesh_pattern_line_to() + cairo_mesh_pattern_curve_to() + cairo_mesh_pattern_set_control_point() + cairo_mesh_pattern_set_corner_color_rgb() + cairo_mesh_pattern_set_corner_color_rgba() + cairo_mesh_pattern_get_patch_count() + cairo_mesh_pattern_get_path() + cairo_mesh_pattern_get_control_point() + cairo_mesh_pattern_get_corner_color_rgba() + + + + + + Surfaces + + Like patterns, surfaces, which use only the + cairo_surface_t + type in the C API should be broken up into a hierarchy of types + in a language binding. + + +cairo_surface_t + cairo_image_surface_t + cairo_atsui_surface_t + cairo_win32_surface_t + cairo_xlib_surface_t + + + Unlike patterns, the constructors and methods on these types are + clearly named, and can be trivially associated with the + appropriate subtype. Many language bindings will want to avoid + binding the platform-specific subtypes at all, since the + methods on these types are not useful without passing in native + C types. Unless there is a language binding for Xlib available, + there is no way to represent a XLib Display * in + that language. + + + This doesn't mean that platform-specific surface types can't + be used in a language binding that doesn't bind the constructor. + A very common situation is to use a cairo language binding in + combination with a binding for a higher level system like + the GTK+ widget + toolkit. In such a situation, the higher level toolkit provides + ways to get references to platform specific surfaces. + + + The cairo_surface_set_user_data(), + and cairo_surface_get_user_data() + methods are provided for use in language bindings, and should + not be directly exposed to applications. One example of the use + of these functions in a language binding is creating a binding for: + + +cairo_surface_t * +cairo_image_surface_create_for_data (unsigned char *data, + cairo_format_t format, + int width, + int height, + int stride); + + + The memory block passed in for data must be + kept around until the surface is destroyed, so the language + binding must have some way of determining when that happens. The + way to do this is to use the destroy + argument to cairo_surface_set_user_data(). + + + Some languages may not have a suitable “pointer to a block of + data†type to pass in for data. And even + where a language does have such a type, the user will be + frequently able to cause the backing store to be reallocated + to a different location or truncated. Should we recommend a + standard type name and binding for a buffer object here? + + + + Fonts + + Fonts are once more an area where there is a hierarchy of types: + + +cairo_font_face_t + cairo_ft_font_face_t + cairo_win32_font_face_t +cairo_scaled_font_t + cairo_ft_scaled_font_t + cairo_win32_scaled_font_t + + + The methods on the subtypes are, however, not useful without + bindings for fontconfig and FreeType or for the Win32 GDI, + so most language bindings will choose not to bind these + types. + + + The cairo_font_face_set_user_data(), + and cairo_font_face_get_user_data() + methods are provided for use in language bindings, and should + not be directly exposed to applications. + + + + cairo_path_t + + The cairo_path_t type is one + area in which most language bindings will differ significantly + from the C API. The C API for cairo_path_t is + designed for efficiency and to avoid auxiliary objects that + would be have to be manually memory managed by the + application. However, + a language binding should not present cairo_path_t as an + array, but rather as an opaque that can be iterated + over. Different languages have quite different conventions for + how iterators work, so it is impossible to give an exact + specification for how this API should work, but the type names + and methods should be similar to the language's mapping of the following: + + +typedef struct cairo_path_iterator cairo_path_iterator_t; +typedef struct cairo_path_element cairo_path_element_t; + +cairo_path_iterator_t * +cairo_path_get_iterator (cairo_path_t *path); + +cairo_bool_t +cairo_path_iterator_has_next (cairo_path_iterator_t *iterator); + +cairo_path_element_t * +cairo_path_iterator_next (cairo_path_iterator_t *iterator); + +cairo_path_element_type_t +cairo_path_element_get_type (cairo_path_element_t *element); + +void +cairo_path_element_get_point (cairo_path_element_t *element, + int index, + double *x, + double *y); + + + The above is written using the Java conventions for + iterators. To illustrate how the API for PathIterator might + depend on the native iteration conventions of the API, examine + three versions of the loop, first written in a hypothetical Java + binding: + + +PathIterator iter = cr.copyPath().iterator(); +while (cr.hasNext()) { + PathElement element = iter.next(); + if (element.getType() == PathElementType.MOVE_TO) { + Point p = element.getPoint(0); + doMoveTo (p.x, p.y); + } +} + + And then in a hypothetical C++ binding: + + +Path path = cr.copyPath(); +for (PathIterator iter = path.begin(); iter != path.end(); iter++) { + PathElement element = *iter; + if (element.getType() == PathElementType.MOVE_TO) { + Point p = element.getPoint(0); + doMoveTo (p.x, p.y); + } +} + + And then finally in a Python binding: + + +for element in cr.copy_path(): + if element.getType == cairo.PATH_ELEMENT_MOVE_TO: + (x, y) = element.getPoint(0) + doMoveTo (x, y); + + While many of the API elements stay the same in the three + examples, the exact iteration mechanism is quite different, to + match how users of the language would expect to iterate over + a container. + + + You should not present an API for mutating or for creating new + cairo_path_t objects. In the future, these + guidelines may be extended to present an API for creating a + cairo_path_t from scratch for use with + cairo_append_path() + but the current expectation is that cairo_append_path() will + mostly be used with paths from + cairo_copy_path(). + + + + diff --git a/local/recipes/libs/cairo/source/doc/public/meson.build b/local/recipes/libs/cairo/source/doc/public/meson.build new file mode 100644 index 0000000000..278ef47034 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/public/meson.build @@ -0,0 +1,156 @@ +gnome = import('gnome') + +ignore_headers = [ + # Sub-directories + 'win32', + + # Internal headers + 'cairoint.h', + 'cairo-features.h', + 'cairo-features-win32.h', + + # Inlined API + 'cairo-box-inline.h', + 'cairo-clip-inline.h', + 'cairo-combsort-inline.h', + 'cairo-contour-inline.h', + 'cairo-error-inline.h', + 'cairo-image-surface-inline.h', + 'cairo-line-inline.h', + 'cairo-list-inline.h', + 'cairo-pattern-inline.h', + 'cairo-recording-surface-inline.h', + 'cairo-surface-inline.h', + 'cairo-surface-observer-inline.h', + 'cairo-surface-snapshot-inline.h', + 'cairo-surface-subsurface-inline.h', + + # Private headers + 'cairo-analysis-surface-private.h', + 'cairo-arc-private.h', + 'cairo-array-private.h', + 'cairo-atomic-private.h', + 'cairo-backend-private.h', + 'cairo-boxes-private.h', + 'cairo-cache-private.h', + 'cairo-clip-private.h', + 'cairo-compiler-private.h', + 'cairo-composite-rectangles-private.h', + 'cairo-compositor-private.h', + 'cairo-contour-private.h', + 'cairo-damage-private.h', + 'cairo-default-context-private.h', + 'cairo-deprecated.h', + 'cairo-device-private.h', + 'cairo-error-private.h', + 'cairo-fixed-private.h', + 'cairo-fixed-type-private.h', + 'cairo-fontconfig-private.h', + 'cairo-freed-pool-private.h', + 'cairo-freelist-private.h', + 'cairo-freelist-type-private.h', + 'cairo-ft-private.h', + 'cairo-gstate-private.h', + 'cairo-hash-private.h', + 'cairo-image-info-private.h', + 'cairo-image-surface-private.h', + 'cairo-line-private.h', + 'cairo-list-private.h', + 'cairo-malloc-private.h', + 'cairo-mempool-private.h', + 'cairo-mutex-impl-private.h', + 'cairo-mutex-list-private.h', + 'cairo-mutex-private.h', + 'cairo-mutex-type-private.h', + 'cairo-output-stream-private.h', + 'cairo-paginated-private.h', + 'cairo-paginated-surface-private.h', + 'cairo-path-fixed-private.h', + 'cairo-path-private.h', + 'cairo-pattern-private.h', + 'cairo-pdf-operators-private.h', + 'cairo-pdf-shading-private.h', + 'cairo-pdf-surface-private.h', + 'cairo-pixman-private.h', + 'cairo-private.h', + 'cairo-ps-surface-private.h', + 'cairo-quartz-private.h', + 'cairo-recording-surface-private.h', + 'cairo-reference-count-private.h', + 'cairo-region-private.h', + 'cairo-rtree-private.h', + 'cairo-scaled-font-private.h', + 'cairo-scaled-font-subsets-private.h', + 'cairo-script-private.h', + 'cairo-slope-private.h', + 'cairo-spans-compositor-private.h', + 'cairo-spans-private.h', + 'cairo-stroke-dash-private.h', + 'cairo-surface-backend-private.h', + 'cairo-surface-clipper-private.h', + 'cairo-surface-fallback-private.h', + 'cairo-surface-observer-private.h', + 'cairo-surface-offset-private.h', + 'cairo-surface-private.h', + 'cairo-surface-snapshot-private.h', + 'cairo-surface-subsurface-private.h', + 'cairo-surface-wrapper-private.h', + 'cairo-svg-surface-private.h', + 'cairo-tag-attributes-private.h', + 'cairo-tag-stack-private.h', + 'cairo-time-private.h', + 'cairo-traps-private.h', + 'cairo-tristrip-private.h', + 'cairo-truetype-subset-private.h', + 'cairo-type1-private.h', + 'cairo-type3-glyph-surface-private.h', + 'cairo-types-private.h', + 'cairo-user-font-private.h', + 'cairo-wideint-private.h', + 'cairo-wideint-type-private.h', + 'cairo-xcb-private.h', + 'cairo-xlib-private.h', + 'cairo-xlib-surface-private.h', + 'cairo-xlib-xrender-private.h', + 'test-compositor-surface-private.h', +] + +ignore_decorators = [ + 'cairo_public', + 'cairo_private', +] + +docpath = get_option('prefix') / get_option('datadir') / 'gtk-doc/html' +version_conf = configuration_data() +version_conf.set('CAIRO_VERSION', meson.project_version()) +configure_file( + input: 'version.xml.in', + output: 'version.xml', + configuration: version_conf +) + +gnome.gtkdoc('cairo', + main_xml: 'cairo-docs.xml', + namespace: 'cairo', + mode: 'sgml', + src_dir: doc_srcdir, + dependencies: libcairo_dep, + scan_args: [ + '--ignore-decorators=' + '|'.join(ignore_decorators), + '--ignore-headers=' + ' '.join(ignore_headers), + ], + mkdb_args: ['--source-suffixes=h,c,cpp'], + content_files: [ + 'language-bindings.xml', + ], + expand_content_files: [ + 'language-bindings.xml', + ], + html_assets: [ + ], + fixxref_args: [ + '--html-dir=' + docpath, + ], + install: true, + check: true, +) diff --git a/local/recipes/libs/cairo/source/doc/public/version.xml.in b/local/recipes/libs/cairo/source/doc/public/version.xml.in new file mode 100644 index 0000000000..6bd185791f --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/public/version.xml.in @@ -0,0 +1 @@ +@CAIRO_VERSION@ diff --git a/local/recipes/libs/cairo/source/doc/releasing.md b/local/recipes/libs/cairo/source/doc/releasing.md new file mode 100644 index 0000000000..ab5abb62bc --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/releasing.md @@ -0,0 +1,175 @@ +# Releasing Cairo + +Here are the steps to follow to create a new cairo release: + +## 0. Decide type of release and checkout the appropriate branch + +The Cairo project makes three types of releases: Development snapshot +releases, stable minor releases, and stable micro (aka "point") releases. +Micro releases should be only bugfixes and no API additions. If there are +API additions consider making a Minor release. Snapshot releases can be +done of the current development tree between Minor releases, as desired. + +For stable releases (both minor and micro), the work should be done on the +given release branch. E.g. for 1.14.12, check out the 1.14 branch via "git +checkout origin/1.14 -b 1.14". + +## 1. Ensure that there are no local, uncommitted/unpushed mods + +You're probably in a good state if both "git diff HEAD" and "git log +master..origin/master" give no output. + +## 2. Verify that the code passes `meson dist` + +First, make sure you have 'nm' and 'readelf' commands in `PATH`. this +should be OK with any Linux distro. + +Running "meson dist" should result in no warnings or errors and end with a +message of the form: + + Created source/cairo/_build/meson-dist/cairo-1.17.8.tar.xz + +If the test suite does not pass, you can use: + + meson dist --no-tests + +But this should only be allowed for development snapshots. Please, always +check the state of the CI pipeline on GitLab. + +## 3. Decide what the new version number for the release will be. + +Cairo uses even numbers for official releases, and odd numbers for +development snapshots. Thus, for a Minor release it would be: + + LAST_RELEASE="X.Y.Z" # e.g. 1.12.0 + THIS_RELEASE="X.Y+2.0" # e.g. 1.14.0 + +While for a Micro release the version numbers should be: + + LAST_RELEASE="X.Y.Z" # e.g. 1.14.0 + THIS_RELEASE="X.Y.Z+2" # e.g. 1.14.2 + +Snapshots are similar but have odd minor versions. Also, the first snapshot +release in a new series will be .2 rather than .0, e.g.: + + LAST_RELEASE="X.Y.Z" # e.g. 1.14.0 + THIS_RELEASE="X.Y+1.0" # e.g. 1.15.2 + +and subsequent snapshots in that series are just normal micro releases: + + LAST_RELEASE="X.Y.Z" # e.g. 1.15.2 + THIS_RELEASE="X.Y.Z+2" # e.g. 1.15.4 + +## 4. Fill out an entry in the NEWS file + +Sift through the logs since the last release. This is most easily done with +a command such as: + + git log --stat ${LAST_RELEASE}.. + +Summarize major changes briefly in a style similar to other entries in NEWS. +Take special care to note any additions in the API. These should be easy to +find by noting modifications to .h files in the log command above. And more +specifically, the following command will show each patch that has changed a +public header file since the given version: + +``` +find src/ -name '*.h' ! -name '*-private.h' \ + ! -name 'cairoint.h' ! -name 'cairo-*features*.h' | \ + xargs git diff ${LAST_RELEASE}.. -- +``` + + +## 5. Increment `CAIRO_VERSION_{MINOR|MICRO}` in `src/cairo-version.h`: + +If there are backward-incompatible changes in the API, stop now and don't +release. Go back and fix the API instead. Cairo is intended to remain +backwards-compatible as far as API. + +So `CAIRO_VERSION_MAJOR` will not be incremented unless we come up with a +new versioning scheme to take advantage of it. + +If there are API additions, then increment `CAIRO_VERSION_MINOR` and reset +`CAIRO_VERSION_MICRO` to 0. **NOTE**: The minor version is only incremented +for releases, not for snapshots. + +Otherwise, (i.e. there are only bug fixes), increment `CAIRO_VERSION_MICRO` +to the next larger (even) number. + +## 6. For Minor releases, add an index entry to `doc/public/cairo-docs.xml` + +Towards the end of the file, add a new section for the stable release. +It'll look something like: + +```xml + + Index of new symbols in X.Y + + +``` + +## 7. Commit the changes to `NEWS` and `src/cairo-version.h` + +It's especially important to mention the new version number in your commit +log. + +## 8. Generate the release archive + +The `meson dist` command will: + + * Generate the final tar file + * Generate an sha1sum file + +Once you have the release archive you will need to: + + * Sign the sha1sum using your GPG setup (asks for your GPG password) + * `scp` the three files to appear on https://cairographics.org/releases + * Generate a versioned manual and upload it to appear as both: + - `https://cairographics.org/manual-${THIS_RELEASE}` + - `https://cairographics.org/manual` + * Place local copies of the three files in the releases directory + * Create a `LATEST-{package_version}` file (after deleting any old one) + * Tag the entire source tree with a `${THIS_RELEASE}` tag, and sign the + tag with your GPG key (asks for your GPG password, and you may need to + set `GIT_COMMITTER_NAME` and `GIT_COMMITTER_EMAIL` to match your + public-key's setting or this fails.) + * Provide some text for the release announcement (see below). + +## 9. Update master (or the stable branch) version number. + +For Micro releases (X.Y.Z+2), increment `CAIRO_VERSION_MICRO` to the next +larger (odd) number in `src/cairo-version.h`. + + DEVEL_VERSION="X.Y.Z+1" # e.g. 1.15.10 -> 1.15.11 + +For Minor releases (X.Y.0), increment `CAIRO_VERSION_MINOR` to the next +larger (odd) number, and set `CAIRO_VERSION_MICRO` to 1. + + DEVEL_VERSION="X.Y.Z+1" # e.g. 1.16.0 -> 1.17.1 + +Then, commit: + + git commit src/cairo-version.h -m "Bump version for ${DEVEL_VERSION}" + +## 9. Push the new tag out + +Use: + + git push --atomic origin master ${THIS_RELEASE} + +to ensure that both the tag and the latest changes in your tree are uploaded +at the same time. + +## 10. Send out an announcement message. + +Send a message to cairo-announce@cairographics.org and CC +cairo@cairographics.org, and ftp-release@lists.freedesktop.org (pr@lwn.net +as well for major releases) to announce the release, adding the excerpt from +NEWS and the shortlog of all changes since last release, generated by: + + git shortlog ${LAST_RELEASE}... + +## 11. Add the announcement to the website + +Add a new entry in the `news` directory. It will automatically get indexed +onto the homepage when the site refreshes. diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/.gitignore b/local/recipes/libs/cairo/source/doc/tutorial/slides/.gitignore new file mode 100644 index 0000000000..72a67a02c8 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/slides/.gitignore @@ -0,0 +1,7 @@ +tutorial-???.html +tutorial-???.png +tutorial-???.svg +tutorial-index.xml +tutorial.pdf +index.html +*~ diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-blank.svg b/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-blank.svg new file mode 100644 index 0000000000..a338ee1b2d --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-blank.svg @@ -0,0 +1,477 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + g> + + + + + + + + + Slide Title + + + + + + Slide content + + + + https://cairographics.org + + + diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-code.svg b/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-code.svg new file mode 100644 index 0000000000..2204ffc924 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-code.svg @@ -0,0 +1,913 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + g> + + > + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Presentation Sub-title + + + + + + + + Slide Title + + + + + + Slide content + + + + https://cairographics.org + + + diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-large-content.svg b/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-large-content.svg new file mode 100644 index 0000000000..5acf4c9374 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-large-content.svg @@ -0,0 +1,899 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + g> + + > + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Slide Title + + + + + + Slide content + + + + + diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-separator.svg b/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-separator.svg new file mode 100644 index 0000000000..816223218b --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-separator.svg @@ -0,0 +1,909 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + g> + + > + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Presentation Sub-title + + + + + + Slide Title + + + + + Slide content + + + + https://cairographics.org + + + diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-title.svg b/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-title.svg new file mode 100644 index 0000000000..31b14f83b8 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo-title.svg @@ -0,0 +1,898 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + g> + + > + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Presentation Title + + + + + Slide content + + + + + + diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo.svg b/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo.svg new file mode 100644 index 0000000000..5823c29c17 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/slides/cairo.svg @@ -0,0 +1,898 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + g> + + > + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Presentation Sub-title + + + + + + + + Really long slide title so you can see + + + + + + Slide content + + + + https://cairographics.org + + + diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/circle-cairo-large.png b/local/recipes/libs/cairo/source/doc/tutorial/slides/circle-cairo-large.png new file mode 100644 index 0000000000..a08e1193a1 Binary files /dev/null and b/local/recipes/libs/cairo/source/doc/tutorial/slides/circle-cairo-large.png differ diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/circle-cairo.png b/local/recipes/libs/cairo/source/doc/tutorial/slides/circle-cairo.png new file mode 100644 index 0000000000..f5d8cd438c Binary files /dev/null and b/local/recipes/libs/cairo/source/doc/tutorial/slides/circle-cairo.png differ diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/circle-ooo-large.png b/local/recipes/libs/cairo/source/doc/tutorial/slides/circle-ooo-large.png new file mode 100644 index 0000000000..dfa40997f6 Binary files /dev/null and b/local/recipes/libs/cairo/source/doc/tutorial/slides/circle-ooo-large.png differ diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/circle-ooo.png b/local/recipes/libs/cairo/source/doc/tutorial/slides/circle-ooo.png new file mode 100644 index 0000000000..eb90666e6a Binary files /dev/null and b/local/recipes/libs/cairo/source/doc/tutorial/slides/circle-ooo.png differ diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/expander-fuzzy-large.png b/local/recipes/libs/cairo/source/doc/tutorial/slides/expander-fuzzy-large.png new file mode 100644 index 0000000000..3a485da6a8 Binary files /dev/null and b/local/recipes/libs/cairo/source/doc/tutorial/slides/expander-fuzzy-large.png differ diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/expander-fuzzy.png b/local/recipes/libs/cairo/source/doc/tutorial/slides/expander-fuzzy.png new file mode 100644 index 0000000000..b01fd636e0 Binary files /dev/null and b/local/recipes/libs/cairo/source/doc/tutorial/slides/expander-fuzzy.png differ diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/expander-sharp-large.png b/local/recipes/libs/cairo/source/doc/tutorial/slides/expander-sharp-large.png new file mode 100644 index 0000000000..f97fa06a4a Binary files /dev/null and b/local/recipes/libs/cairo/source/doc/tutorial/slides/expander-sharp-large.png differ diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/expander-sharp.png b/local/recipes/libs/cairo/source/doc/tutorial/slides/expander-sharp.png new file mode 100644 index 0000000000..40759aef70 Binary files /dev/null and b/local/recipes/libs/cairo/source/doc/tutorial/slides/expander-sharp.png differ diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/fuzzies.svg b/local/recipes/libs/cairo/source/doc/tutorial/slides/fuzzies.svg new file mode 100644 index 0000000000..df12b8a719 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/slides/fuzzies.svg @@ -0,0 +1,11 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/jaggies.svg b/local/recipes/libs/cairo/source/doc/tutorial/slides/jaggies.svg new file mode 100644 index 0000000000..e99d07ba5e --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/slides/jaggies.svg @@ -0,0 +1,11 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/rendering-model.png b/local/recipes/libs/cairo/source/doc/tutorial/slides/rendering-model.png new file mode 100644 index 0000000000..900898417c Binary files /dev/null and b/local/recipes/libs/cairo/source/doc/tutorial/slides/rendering-model.png differ diff --git a/local/recipes/libs/cairo/source/doc/tutorial/slides/tutorial.xml b/local/recipes/libs/cairo/source/doc/tutorial/slides/tutorial.xml new file mode 100644 index 0000000000..17470d464c --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/slides/tutorial.xml @@ -0,0 +1,535 @@ + + + + + + + + https://cairographics.org/tutorial + +
  • wget https://cairographics.org/cairo-tutorial.tar.gz
    • +
  • tar xzf cairo-tutorial.tar.gz
    • +
  • cd cairo-tutorial
    • +
  • make
    • +
  • cat README
    • + + IRC: irc.freenode.net #cairo +     + + + Carl Worth + Red Hat, Inc. + + linux.conf.au + 2006-01-26 + https://cairographics.org + + + + Jaggies + Fuzzies + Fireworks + + + + + + + + + + + + + + +
  • Let application authors know there are options
    • +
  • Learn to use cairo—patch the applications
    • +
  • Write your own cairo-using applications
    • +     + + + Various shell cairo programs + + + + #include <cairo.h> + #include <cairo-xlib.h> + int main (void) { + Display *dpy = XOpenDisplay (0); + Window w = XCreateSimpleWindow (dpy,RootWindow (dpy, 0), + 0, 0, WIDTH, HEIGHT, 0, 0, WhitePixel (dpy, 0)); + cairo_surface_t *surface = cairo_xlib_surface_create (dpy, w, + DefaultVisual (dpy, DefaultScreen (dpy)), + WIDTH, HEIGHT); + XEvent ev; + XSelectInput (dpy, w, ExposureMask); + XMapWindow (dpy, w); + while (XNextEvent (dpy, &ev) == 0) + if (ev.type == Expose && !ev.xexpose.count) { + cairo_t *cr = cairo_create (surface); + draw (cr); + cairo_destroy (cr); + } + } + + + + #include <gtk/gtk.h> + static gboolean + handle_expose (GtkWidget *widget, GdkEventExpose *event, gpointer data) { + cairo_t *cr = gdk_cairo_create (widget->window); + draw (cr); + cairo_destroy (cr); + return FALSE; + } + int main (int argc, char **argv) { + GtkWidget *window, *drawing_area; + gtk_init (&argc, &argv); + window = gtk_window_new (GTK_WINDOW_TOPLEVEL); + gtk_window_set_default_size (GTK_WINDOW (window), WIDTH, HEIGHT); + drawing_area = gtk_drawing_area_new (); + gtk_container_add (GTK_CONTAINER (window), drawing_area); + g_signal_connect (drawing_area, "expose-event", + G_CALLBACK (handle_expose), NULL); + gtk_widget_show_all (window); gtk_main (); + } + + + + #include <cairo.h> + + int main (void) + { + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + WIDTH, HEIGHT); + cr = cairo_create (surface); + draw (cr); + cairo_surface_write_to_png (surface, "foo.png"); + + cairo_surface_destroy (surface); + cairo_destroy (cr); + + return 0; + } + + + + #include <cairo.h> + #include <cairo-pdf.h> + int main (void) + { + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_pdf_surface_create ("foo.pdf", WIDTH, HEIGHT); + + cr = cairo_create (surface); + draw (cr); + cairo_show_page (cr); + + cairo_surface_destroy (surface); + cairo_destroy (cr); + + return 0; + } + + + + #!/usr/bin/env python + import gtk + import cairo + + def expose (widget, event): + cr = widget.window.cairo_create () + draw (cr) + + win = gtk.Window () + win.connect ('destroy', gtk.main_quit) + win.set_default_size(WIDTH, HEIGHT) + drawingarea = gtk.DrawingArea () + win.add (drawingarea) + drawingarea.connect ('expose_event', expose) + win.show_all () + gtk.main () + + + + #!/usr/bin/env python + import cairo + + surface = cairo.ImageSurface (cairo.FORMAT_ARGB32, WIDTH, HEIGHT) + cr = cairo.Context (surface) + + draw (cr) + + surface.write_to_png ('foo.png') + + + + autoimport Cairo; + + cairo_t cr = new (WIDTH, HEIGHT); + draw (cr); + + + +
  • C++ (cairomm)
    • +
  • Haskell (hscairo)
    • +
  • Java (CairoJava, cairo-java)
    • +
  • Common Lisp (cl-cairo)
    • +
  • Nickle (cairo-5c)
    • +
  • Objective Caml (cairo-ocaml)
    • +
  • perl (cairo-perl)
    • +
  • python (pycairo)
    • +
  • ruby (rcairo)
    • +
  • squeak (cairo-squeak)
    • +     + + + + https://cairographics.org/tutorial + https://cairographics.org/cairo-tutorial.tar.gz +
  • tar xzf cairo-tutorial.tar.gz
    • +
  • cd cairo-tutorial
    • +
  • make
    • +
  • cat README
    • + IRC: irc.freenode.net #cairo +     + + + + + + + + + Here comes the fun part + + + +
      +
    • Paths
      • +
        +
      • construction
        • +
      • filling, stroking
        • +
      +
    • Images
      • +
        +
      • loading from disk
        • +
      • using as source
        • +
      • transforming/filtering
        • +
      +
    • Text
      • +
        +
      • “Toy†API
        • +
      • “Full†API
        • +
      +
    +     + + +
      +
    • Paths
      • +
        +
      • cairo_stroke
        • +
      • cairo_fill
        • +
      +
    • Images
      • +
        +
      • cairo_paint
        • +
      • cairo_mask
        • +
      • cairo_paint_with_alpha
        • +
      +
    • Text
      • +
        +
      • cairo_show_text (“toyâ€)
        • +
      • cairo_show_glyphs (“fullâ€)
        • +
      +
    +     + + +
      +
    • Paths consist of lines and splines:
      • +
        +
      • cairo_move_to
        • + start new sub path, set current point +
      • cairo_line_to
        • + add line segment to path +
      • cairo_curve_to
        • + add Bézier spline to path +
      • cairo_close_path
        • + add line segment to last move_to point +
      +
    +     + + +
      +
    • cairo_stroke
      • +
        +
      • Paints the path itself as stroked by a pen
        • +
      • Controlled by various stroke parameters:
        • +
          +
        • cairo_set_line_width
          • +
        • cairo_set_line_cap
          • +
        • cairo_set_line_join
          • +
        • cairo_set_miter_limit
          • +
        • cairo_set_dash
          • +
        +
      +
    +     + + + + + + + + +
      +
    • CAIRO_LINE_CAP_BUTT
      • +
    • CAIRO_LINE_CAP_ROUND
      • +
    • CAIRO_LINE_CAP_SQUARE
      • +
    +     + + +
      +
    • CAIRO_LINE_JOIN_BEVEL
      • +
    • CAIRO_LINE_JOIN_ROUND
      • +
    • CAIRO_LINE_JOIN_MITER
      • +
    +     + + +
  • Adds a line segment (if necessary) to the
    • + start of the path +
  • Draws a join from that line to the first
    • + element of the path +     + + + + + +
      +
    • Paints the “inside†of the path
      • +
    • Two different ways to determine inside-ness
      • +
        +
      • cairo_set_fill_rule:
        • + CAIRO_FILL_RULE_WINDING + CAIRO_FILL_RULE_EVEN_ODD +
      +
    +     + + + + + +
  • To test a point for inside-ness, imagine a ray
    • + from the point and extending to infinity + (any direction) and examine path crossings +
  • EVEN_ODD counts crossings and fills when odd
    • +
  • WINDING counts up/down for left/right crossings
    • + and fills when the final number is not zero +     + + + + + +
  • All drawing occurs with the source pattern
    • +
  • Uniform-color sources can be set
    • + with or without alpha: +
      +
    • cairo_set_source_rgb
      • +
    • cairo_set_source_rgba
      • +
    +     + + + + + +
  • cairo_stroke and cairo_fill consume the path
    • +
  • Variants are available to preserve the path:
    • +
      +
    • cairo_stroke_preserve
      • +
    • cairo_fill_preserve
      • +
    +
  • This is a variation from PostScript and PDF
    • +
      +
    • The cairo approach differs in different ways
      • +
    • We think this way is better (of course)
      • +
    +     + + + + + +
      +
    • cairo_rectangle
      • +
    • cairo_arc
      • +
    • cairo_text_path
      • +
    • cairo_glyph_path
      • +
    • Relative-coordinate variants:
      • +
        +
      • cairo_rel_move_to
        • +
      • cairo_rel_line_to
        • +
      • cairo_rel_curve_to
        • +
      +
    +     + + + + + + + + +
      +
    • Single matrix combines rotation, translation,
      • + scale and shear +
    • Non-projective transformations
      • +
        +
      • Pen doesn't change shape along the stroke
        • +
      +
    • Transformations are cumulative
      • +
        +
      • translate, scale != scale, translate
        • +
      +
    +     + + + + + +
      +
    • cairo_save and cairo_restore
      • +
    • Very useful for bracketing function bodies
      • +
    • Eliminates graphics state side effects
      • + +
    • NOTE: Path is not part of graphics state
      • +
        +
      • Path is not affected by cairo_save/restore
        • +
      • Useful for path-generating functions
        • +
      +
    +     + + +
  • cairo_clip
    • +
  • Intersects path with current clip to further
    • + restrict drawing +
  • Pixel-aligned clipping is much faster
    • +
  • cairo_clip_preserve is available as well
    • +     + + +
      +
    • Surface patterns
      • +
        +
      • Image from disk
        • +
      • Results of cairo drawing
        • +
      +
    • Gradient patterns
      • +
        +
      • linear gradients
        • +
      • radial gradients
        • +
      +
    +     + + + + + + + + + + + + + + + + + + + + +
      +
    • “Toy†API:
      • +
        +
      • Useful for demos like we are writing today
        • +
      • No real layout—not useful for the majority
        • + of writing systems in the world +
      +
    • “Full†API:
      • +
        +
      • User must do OS-dependent font selection
        • +
      • User must access font glyph IDs directly
        • +
      • User must do all text layout
        • +
      +
    +     + + +
      +
    • Simple font selection
      • +
        +
      • family, weight, slant
        • +
      • OS independent
        • +
      • No font listing support
        • +
      +
    • UTF-8 text drawing and extents functions
      • +
    • Still supports full font transformations
      • +
    + + + + + +
  • Just use pango
    • +     + + +
  • C has no exceptions
    • +
  • Checking each return is tedious
    • +
  • C programmers rarely bother
    • +
  • Lots of broken programs result
    • +     + + +
  • Cairo stores status value when error occurs
    • +
  • API “shuts down†when an error occurs
    • +
  • All cairo functions are benign
    • + (and well defined) after any error. +
  • cairo_status can be called when convenient
    • +
  • Error status values propagate across objects
    • +     + + + + +     +     diff --git a/local/recipes/libs/cairo/source/doc/tutorial/src/.gitignore b/local/recipes/libs/cairo/source/doc/tutorial/src/.gitignore new file mode 100644 index 0000000000..68af59e732 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/src/.gitignore @@ -0,0 +1,8 @@ +*-gtk +*-pdf +*-png +*-xlib +*.pdf +*.png +*.o +*~ diff --git a/local/recipes/libs/cairo/source/doc/tutorial/src/README b/local/recipes/libs/cairo/source/doc/tutorial/src/README new file mode 100644 index 0000000000..4ce16d2f57 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/src/README @@ -0,0 +1,66 @@ +Welcome to the cairo tutorial: + ++--------------------------------+ +| How to Recognize Ugly Graphics | +|(and what you can do about them)| ++--------------------------------+ + +This directory is your personal playground for following along with +the examples. In order for you to make use of these files you will +need to have cairo and its header files installed. You can find +instructions for doing this at: + + https://cairographics.org/tutorial + +Notice that there are a few .c files in this directory. + +You should start out by just typing "make" which will turn each .c +file into several different programs. Go ahead and run each of the +programs and see what they do. Some of them will open up new X windows +while others will simply write their output to files (such .png or +.pdf). + +After you play with those a bit, go ahead and take a look at the +contents of the .c files. You'll see that each file contains a draw() +function that does all of the drawing. + +You might be surprised to notice that there is no main() function in +any of the files. Instead, main is hidden away by means of +cairo-tutorial.h. This rather non-conventional style is used to allow +you to focus on the actual drawing code involved in using cairo, while +not having to worry about the setup semantics. We don't recommend that +you follow this style for real projects. + +As you follow along during the tutorial and get some ideas for things +to draw, you'll want to start making your own .c files. You can copy +an existing file or make your own by following this simple minimal +template: + + #include "cairo-tutorial.h" + + static void + draw (cairo_t *cr, int width, int height) + { + /* Put your drawing code here. */ + } + +Any new file you create will automatically get picked up by the +Makefile so that "make" will compile your file into several different +programs, just like the existing examples. + +If you'd like to control the initial size of the output, you may +define WIDTH and HEIGHT before including cairo-tutorial.h like so: + + #define WIDTH 100 + #define HEIGHT 100 + + #include "cairo-tutorial.h" + +If you would like to change the set of cairo-backend target programs +that are compiled, you may edit the "all" target in the Makefile. + +Have fun! + +-Carl Worth + +cworth@redhat.com diff --git a/local/recipes/libs/cairo/source/doc/tutorial/src/circle.c b/local/recipes/libs/cairo/source/doc/tutorial/src/circle.c new file mode 100644 index 0000000000..6bd02e8ba5 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/src/circle.c @@ -0,0 +1,22 @@ +#include "cairo-tutorial.h" + +static void +draw (cairo_t *cr, int width, int height) +{ + int radius; + + if (width < height) + radius = width/2 - 4; + else + radius = height/2 - 4; + + cairo_move_to (cr, width/2 + radius, height/2); + cairo_arc (cr, width/2, height/2, radius, + 0.0, 2 * M_PI); + + cairo_set_source_rgb (cr, 0.6, 0.8, 1.0); + cairo_fill_preserve (cr); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_stroke (cr); +} diff --git a/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial-gtk.h b/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial-gtk.h new file mode 100644 index 0000000000..60516a3562 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial-gtk.h @@ -0,0 +1,133 @@ +/* cairo-tutorial-gtk.h - a tutorial framework for cairo with gtk+ + * + * Copyright © 2005, Carl Worth + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA. + */ + +#include +#include + +#include + +#ifndef WIDTH +#define WIDTH 400 +#endif + +#ifndef HEIGHT +#define HEIGHT 400 +#endif + +static void +draw (cairo_t *cr, int width, int height); + +#if ! GTK_CHECK_VERSION(2,7,0) +/* copied from gtk+/gdk/gdkcairo.c and gtk+/gdk/x11/gdkdrawable-x11.c + * gdk_cairo_create() which is available in 2.7.0 and later. + */ +static cairo_t * +gdk_cairo_create (GdkDrawable *drawable) +{ + int width, height; + cairo_t *cr = NULL; + cairo_surface_t *surface = NULL; + GdkVisual *visual = gdk_drawable_get_visual (drawable); + + gdk_drawable_get_size (drawable, &width, &height); + if (visual) + surface = cairo_xlib_surface_create (GDK_DRAWABLE_XDISPLAY (drawable), + GDK_DRAWABLE_XID (drawable), + GDK_VISUAL_XVISUAL (visual), + width, height); + else if (gdk_drawable_get_depth (drawable) == 1) + surface = cairo_xlib_surface_create_for_bitmap + (GDK_PIXMAP_XDISPLAY (drawable), + GDK_PIXMAP_XID (drawable), + GDK_SCREEN_XSCREEN (gdk_drawable_get_screen (drawable)), + width, height); + else { + g_warning ("Using Cairo rendering requires the drawable argument to\n" + "have a specified colormap. All windows have a colormap,\n" + "however, pixmaps only have colormap by default if they\n" + "were created with a non-NULL window argument. Otherwise\n" + "a colormap must be set on them with " + "gdk_drawable_set_colormap"); + return NULL; + } + if (surface) { + cr = cairo_create (surface); + cairo_surface_destroy (surface); + } + return cr; +} +#endif + +static gboolean +handle_expose (GtkWidget *widget, + GdkEventExpose *event, + gpointer data) +{ + cairo_t *cr; + + cr = gdk_cairo_create (widget->window); + + draw (cr, widget->allocation.width, widget->allocation.height); + + cairo_destroy (cr); + + return FALSE; +} + +static gboolean +handle_key_press (GtkWidget *widget, + GdkEventKey *event, + gpointer data) +{ + if ((event->keyval == GDK_Q || + event->keyval == GDK_q) && (event->state & GDK_CONTROL_MASK)) + gtk_main_quit (); + + return FALSE; +} + +int +main (int argc, char **argv) +{ + GtkWidget *window, *drawing_area; + + gtk_init (&argc, &argv); + + window = gtk_window_new (GTK_WINDOW_TOPLEVEL); + + gtk_window_set_default_size (GTK_WINDOW (window), WIDTH, HEIGHT); + gtk_window_set_title (GTK_WINDOW (window), "cairo demo"); + + g_signal_connect (window, "destroy", + G_CALLBACK (gtk_main_quit), NULL); + + drawing_area = gtk_drawing_area_new (); + gtk_container_add (GTK_CONTAINER (window), drawing_area); + + g_signal_connect (drawing_area, "expose-event", + G_CALLBACK (handle_expose), NULL); + + g_signal_connect (window, "key-press-event", + G_CALLBACK (handle_key_press), NULL); + + gtk_widget_show_all (window); + + gtk_main (); + + return 0; +} diff --git a/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial-pdf.h b/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial-pdf.h new file mode 100644 index 0000000000..00d0f188e5 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial-pdf.h @@ -0,0 +1,74 @@ +/* cairo-tutorial-png.h - a tutorial framework for cairo to write a PNG image + * + * Copyright © 2005, Carl Worth + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA. + */ + +#include +#include + +#include +#include +#include +#include + +#ifndef WIDTH +#define WIDTH 400 +#endif + +#ifndef HEIGHT +#define HEIGHT 400 +#endif + +static void +draw (cairo_t *cr, int width, int height); + +int +main (int argc, char **argv) +{ + cairo_surface_t *surface; + cairo_t *cr; + char *filename, *dash; + + filename = strdup (argv[0]); + assert (filename != NULL); + + dash = strrchr (filename, '-'); + + if (strcmp (dash, "-pdf") == 0) { + *dash = '.'; + } else { + char *new_filename; + new_filename = malloc (strlen (filename) + 5); + sprintf (new_filename, "%s.pdf", filename); + free (filename); + filename = new_filename; + } + + surface = cairo_pdf_surface_create (filename, WIDTH, HEIGHT); + + cr = cairo_create (surface); + + draw (cr, WIDTH, HEIGHT); + + cairo_show_page (cr); + + cairo_surface_destroy (surface); + cairo_destroy (cr); + + free (filename); + + return 0; +} diff --git a/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial-png.h b/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial-png.h new file mode 100644 index 0000000000..428baf2940 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial-png.h @@ -0,0 +1,74 @@ +/* cairo-tutorial-png.h - a tutorial framework for cairo to write a PNG image + * + * Copyright © 2005, Carl Worth + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA. + */ + +#include + +#include +#include +#include +#include + +#ifndef WIDTH +#define WIDTH 400 +#endif + +#ifndef HEIGHT +#define HEIGHT 400 +#endif + +static void +draw (cairo_t *cr, int width, int height); + +int +main (int argc, char **argv) +{ + cairo_surface_t *surface; + cairo_t *cr; + char *filename, *dash; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + WIDTH, HEIGHT); + + cr = cairo_create (surface); + + draw (cr, WIDTH, HEIGHT); + + filename = strdup (argv[0]); + assert (filename != NULL); + + dash = strrchr (filename, '-'); + + if (strcmp (dash, "-png") == 0) { + *dash = '.'; + } else { + char *new_filename; + new_filename = malloc (strlen (filename) + 5); + sprintf (new_filename, "%s.png", filename); + free (filename); + filename = new_filename; + } + + cairo_surface_write_to_png (surface, filename); + + free (filename); + + cairo_surface_destroy (surface); + cairo_destroy (cr); + + return 0; +} diff --git a/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial-xlib.h b/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial-xlib.h new file mode 100644 index 0000000000..5e78d03548 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial-xlib.h @@ -0,0 +1,251 @@ +/* cairo-tutorial-xlib.h - a tutorial framework for cairo with xlib + * + * Copyright © 2005, Keith Packard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifndef WIDTH +#define WIDTH 400 +#endif + +#ifndef HEIGHT +#define HEIGHT 400 +#endif + +#ifndef DEFAULT_VISUAL +#define DEFAULT_VISUAL 0 +#endif + +static void +Usage (char *program) +{ + fprintf (stderr, "Usage: %s\n", program); + fprintf (stderr, "\t-display \n"); + fprintf (stderr, "\t-geometry \n"); + exit (1); +} + +char *dpy_name; +VisualID vid = DEFAULT_VISUAL; +Colormap colormap; +Visual *visual; +int depth; +unsigned int width = WIDTH, height = HEIGHT; +Window win; +Pixmap pix; +GC gc; + +static void +draw (cairo_t *cr, int width, int height); + +static void +draw_to_pixmap (Display *dpy, Pixmap pix) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_xlib_surface_create (dpy, pix, visual, + width, height); + cr = cairo_create (surface); + + draw (cr, width, height); + + cairo_destroy (cr); + cairo_surface_destroy (surface); +} + +static void +handle_configure (Display *dpy, XConfigureEvent *cev) +{ + width = cev->width; + height = cev->height; + + XFreePixmap(dpy, pix); + pix = XCreatePixmap(dpy, win, width, height, depth); + XFillRectangle(dpy, pix, gc, 0, 0, width, height); + draw_to_pixmap (dpy, pix); +} + +static void +handle_expose (Display *dpy, XExposeEvent *eev) +{ + XCopyArea (dpy, pix, win, gc, + eev->x, eev->y, + eev->width, eev->height, + eev->x, eev->y); +} + +int +main (argc, argv) + int argc; + char **argv; +{ + Display *dpy; + Window root = 0; + char **init_argv = argv; + XSetWindowAttributes attr; + int scr; + int x = 0, y = 0; + int geometryMask; + int border_width = 1; + XSizeHints sizeHints; + XWMHints wmHints; + XClassHint classHints; + XEvent ev; + XEvent eev; + int HasExpose = 0; + int sync = 0; + XTextProperty wm_name, icon_name; + Atom wm_delete_window; + unsigned long gc_mask; + XGCValues gcv; + char quit_string[10]; + unsigned long window_mask; + int has_colormap = 0; + + wm_name.value = (unsigned char *) argv[0]; + wm_name.encoding = XA_STRING; + wm_name.format = 8; + wm_name.nitems = strlen (argv[0]) + 1; + icon_name = wm_name; + gc_mask = 0; + while (*++argv) { + if (!strcmp (*argv, "-display")) + dpy_name = *++argv; + else if (!strcmp (*argv, "-visual")) + vid = strtol(*++argv, NULL, 0); + else if (!strcmp (*argv, "-geometry")) + geometryMask = XParseGeometry (*++argv, &x, &y, &width, &height); + else if (!strcmp (*argv, "-sync")) + sync = 1; + else if (!strcmp (*argv, "-bw")) + border_width = strtol(*++argv, NULL, 0); + else if (!strcmp (*argv, "-root")) + root = strtol (*++argv, NULL, 0); + else + Usage (*init_argv); + } + sizeHints.flags = 0; + wmHints.flags = InputHint; + wmHints.input = True; + classHints.res_name = init_argv[0]; + classHints.res_class = init_argv[0]; + dpy = XOpenDisplay (dpy_name); + if (!dpy) { + fprintf (stderr, "Error: failed to open display: %s\n", + XDisplayName (dpy_name)); + exit (1); + } + if (sync) + XSynchronize (dpy, sync); + scr = DefaultScreen (dpy); + if (!root) + root = RootWindow (dpy, scr); + window_mask = CWBackPixel|CWBorderPixel|CWEventMask; + if (!has_colormap) + colormap = DefaultColormap (dpy, scr); + else + { + window_mask |= CWColormap; + attr.colormap = colormap; + } + visual = DefaultVisual (dpy, scr); + depth = DefaultDepth (dpy, scr); + if (vid) + { + XVisualInfo vi, *vi_ret; + int n; + + vi.visualid = vid; + vi.screen = scr; + vi_ret = XGetVisualInfo (dpy, VisualIDMask|VisualScreenMask, + &vi, &n); + if (vi_ret) + { + visual = vi_ret->visual; + if (!has_colormap) + { + colormap = XCreateColormap (dpy, root, visual, AllocNone); + window_mask |= CWColormap; + attr.colormap = colormap; + } + depth = vi_ret->depth; + } + } + attr.background_pixel = WhitePixel (dpy, scr); + attr.border_pixel = 0; + attr.event_mask = ExposureMask|KeyPressMask|KeyReleaseMask|StructureNotifyMask; + wm_delete_window = XInternAtom(dpy, "WM_DELETE_WINDOW", False); + win = XCreateWindow (dpy, root, x, y, width, height, border_width, + depth, InputOutput, + visual, + window_mask, + &attr); + pix = XCreatePixmap (dpy, win, width, height, depth); + gcv.foreground = WhitePixel (dpy, scr); + gc = XCreateGC (dpy, pix, GCForeground, &gcv); + XFillRectangle(dpy, pix, gc, 0, 0, width, height); + draw_to_pixmap (dpy, pix); + XSetWMProperties (dpy, win, + &wm_name, &icon_name, + init_argv, argc, + &sizeHints, &wmHints, 0); + XSetWMProtocols (dpy, win, &wm_delete_window, 1); + XMapWindow (dpy, win); + for (;;) { + XNextEvent (dpy, &ev); + if (HasExpose && ev.type != Expose) { + HasExpose = 0; + handle_expose (dpy, &eev.xexpose); + } + switch (ev.type) { + case ConfigureNotify: + handle_configure (dpy, &ev.xconfigure); + break; + case Expose: + if (QLength(dpy)) { + eev = ev; + HasExpose = 1; + } else if (ev.xexpose.count == 0) { + handle_expose (dpy, &ev.xexpose); + } + break; + case KeyPress: + if (XLookupString ((XKeyEvent *) &ev, quit_string, sizeof (quit_string), 0, 0) == 1) { + switch (quit_string[0]) { + case 'q': + exit (0); + case 'c': + XClearArea (dpy, ev.xkey.window, 0, 0, 0, 0, True); + break; + } + } + break; + case ClientMessage: + exit (0); + } + } +} diff --git a/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial.h b/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial.h new file mode 100644 index 0000000000..ec738e915e --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/src/include/cairo-tutorial.h @@ -0,0 +1,40 @@ +/* cairo-tutorial-gtk.h - a tutorial framework for cairo + * + * Copyright © 2005, Carl Worth + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA. + */ + +#include +#include + +/* The application program may override these before including + * cairo-tutorial.h in order to get a window of a different size. */ +#ifndef WIDTH +#define WIDTH 400 +#endif + +#ifndef HEIGHT +#define HEIGHT 400 +#endif + +#ifdef CAIRO_TUTORIAL_GTK +#include "cairo-tutorial-gtk.h" +#elif CAIRO_TUTORIAL_XLIB +#include "cairo-tutorial-xlib.h" +#elif CAIRO_TUTORIAL_PDF +#include "cairo-tutorial-pdf.h" +#elif CAIRO_TUTORIAL_PNG +#include "cairo-tutorial-png.h" +#endif diff --git a/local/recipes/libs/cairo/source/doc/tutorial/src/lca.c b/local/recipes/libs/cairo/source/doc/tutorial/src/lca.c new file mode 100644 index 0000000000..0b131afaf6 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/src/lca.c @@ -0,0 +1,32 @@ +#define WIDTH 750 +#define HEIGHT 360 + +#include "cairo-tutorial.h" + +static void +draw (cairo_t *cr, int width, int height) +{ + cairo_save (cr); + + cairo_translate (cr, 60, 60); + cairo_scale (cr, 3, 3); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_set_line_width (cr, 20); + + /* L */ + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, 0, 80); + cairo_line_to (cr, 50, 80); + + /* C */ + cairo_move_to (cr, 110 + 40 * cos (M_PI / 3), 40 + 40 * sin(M_PI / 3)); + cairo_arc (cr, 110, 40, 40, M_PI / 3, -M_PI / 3); + + /* A */ + cairo_move_to (cr, 160, 80); + cairo_curve_to (cr, 160, -30, 210, -30, 210, 80); + + cairo_stroke (cr); +} diff --git a/local/recipes/libs/cairo/source/doc/tutorial/src/singular.c b/local/recipes/libs/cairo/source/doc/tutorial/src/singular.c new file mode 100644 index 0000000000..958b2b0472 --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/src/singular.c @@ -0,0 +1,162 @@ +/** + * Uses Singular values of transformation matrix to find the length of the + * major and minor axes of the scaled pen. + * + * Put this file in cairo/doc/tutorial/src and type "make" + */ + +#define WIDTH 300 +#define HEIGHT 300 + +#include "cairo-tutorial.h" + +#include + +/* + * Finds the singular values of the non-translation part of matrix. + * + * Let M be the cairo transformation matrix in question: + * + * ⌈xx xy⌉ + * M = |yx yy| + * ⌊x0 y0⌋ + * + * The non-translation part is: + * + * A = ⌈xx xy⌉ + * ⌊yx yy⌋ + * + * The non-zero singular values of A are the square roots of the non-zero + * eigenvalues of A⺠A, where A⺠is A-transpose. + * + * A⺠A = ⌈xx yx⌉⌈xx xy⌉ = ⌈xx²+yx² xx*xy+yx*yy⌉ + * ⌊xy yy⌋⌊yx yy⌋ ⌊xx*xy+yx*yy xy²+yy²⌋ + * + * Name those: + * + * B = A⺠A = ⌈a k⌉ + * ⌊k b⌋ + * + * The eigenvalues of B satisfy: + * + * λ² - (a+b).λ + a.b - k² = 0 + * + * The eigenvalues are: + * __________________ + * (a+b) ± √(a+b)² - 4(a.b-k²) + * λ = --------------------------- + * 2 + * that simplifies to: + * _______________ + * λ = (a+b)/2 ± √((a-b)/2)² + k² + * + * And the Singular values are the root of λs. + * + */ +static void +get_singular_values (const cairo_matrix_t *matrix, + double *major, + double *minor) +{ + double xx = matrix->xx, xy = matrix->xy; + double yx = matrix->yx, yy = matrix->yy; + + double a = xx*xx+yx*yx; + double b = xy*xy+yy*yy; + double k = xx*xy+yx*yy; + + double f = (a+b) * .5; + double g = (a-b) * .5; + double delta = sqrt (g*g + k*k); + + if (major) + *major = sqrt (f + delta); + if (minor) + *minor = sqrt (f - delta); +} + +/* + * Finds the length of the major and minor axes of the pen for a cairo_t, + * identified by the current transformation matrix and line width. + * + * Returned values are in device units. + */ +static void +get_pen_axes (cairo_t *cr, + double *major, + double *minor) +{ + double width; + cairo_matrix_t matrix; + + width = cairo_get_line_width (cr); + cairo_get_matrix (cr, &matrix); + + get_singular_values (&matrix, major, minor); + + if (major) + *major *= width; + if (minor) + *minor *= width; +} + +static void +draw (cairo_t *cr, int width, int height) +{ + double major_width, minor_width; + + /* clear background */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + +#define W width +#define H height +#define B ((width+height)/16) + + /* the spline we want to stroke */ + cairo_move_to (cr, W-B, B); + cairo_curve_to (cr, -W, B, + 2*W, H-B, + B, H-B); + + /* the effect is show better with round caps */ + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + + /* set the skewed pen */ + cairo_rotate (cr, +.7); + cairo_scale (cr, .5, 2.); + cairo_rotate (cr, -.7); + cairo_set_line_width (cr, B); + + get_pen_axes (cr, &major_width, &minor_width); + + /* stroke with "major" pen in translucent red */ + cairo_save (cr); + cairo_identity_matrix (cr); + cairo_set_line_width (cr, major_width); + cairo_set_source_rgba (cr, 1.0, 0.0, 0.0, .9); + cairo_stroke_preserve (cr); + cairo_restore (cr); + + /* stroke with skewed pen in translucent black */ + cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, .9); + cairo_stroke_preserve (cr); + + /* stroke with "minor" pen in translucent yellow */ + cairo_save (cr); + cairo_identity_matrix (cr); + cairo_set_line_width (cr, minor_width); + cairo_set_source_rgba (cr, 1.0, 1.0, 0.0, .9); + cairo_stroke_preserve (cr); + cairo_restore (cr); + + /* stroke with hairline in black */ + cairo_save (cr); + cairo_identity_matrix (cr); + cairo_set_line_width (cr, 1); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_stroke_preserve (cr); + cairo_restore (cr); + + cairo_new_path (cr); +} diff --git a/local/recipes/libs/cairo/source/doc/tutorial/src/twin.c b/local/recipes/libs/cairo/source/doc/tutorial/src/twin.c new file mode 100644 index 0000000000..14347bac2d --- /dev/null +++ b/local/recipes/libs/cairo/source/doc/tutorial/src/twin.c @@ -0,0 +1,39 @@ +/** + * Put this file in cairo/doc/tutorial/src and type "make" + */ + +#define WIDTH 1350 +#define HEIGHT 900 + +#include "cairo-tutorial.h" + + +static void +draw (cairo_t *cr, int width, int height) +{ + int i, j, h; + unsigned char s[2] = {0, 0}; + + /* clear background */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_select_font_face (cr, + "@cairo:", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + h = 2; + for (i = 8; i < 48; i >= 24 ? i+=3 : i++) { + cairo_set_font_size (cr, i); + for (j = 33; j < 128; j++) { + if (j == 33 || (j == 80 && i > 24)) { + h += i + 2; + cairo_move_to (cr, 10, h); + } + s[0] = j; + cairo_show_text (cr, (const char *) s); + } + } +} diff --git a/local/recipes/libs/cairo/source/meson-cc-tests/atomic-ops-c11.c b/local/recipes/libs/cairo/source/meson-cc-tests/atomic-ops-c11.c new file mode 100644 index 0000000000..4d60e998f6 --- /dev/null +++ b/local/recipes/libs/cairo/source/meson-cc-tests/atomic-ops-c11.c @@ -0,0 +1,12 @@ +#include +#include + +/* We require lock free atomics for int and pointers as cairo assumes + * an int* can be cast to cairo_atomic_int_t* + */ +_Static_assert (ATOMIC_INT_LOCK_FREE == 2, "Lock free atomics not supported"); +_Static_assert (ATOMIC_POINTER_LOCK_FREE == 2, "Lock free atomics not supported"); + +int atomic_add(atomic_int *i) { return atomic_fetch_add_explicit(i, 1, memory_order_seq_cst); } +int atomic_cmpxchg(atomic_int *i, int j, int k) { return atomic_compare_exchange_strong_explicit (i, &j, k, memory_order_seq_cst, memory_order_seq_cst); } +int main(void) { return 0; } diff --git a/local/recipes/libs/cairo/source/meson-cc-tests/atomic-ops-cxx11.c b/local/recipes/libs/cairo/source/meson-cc-tests/atomic-ops-cxx11.c new file mode 100644 index 0000000000..aeef0d849c --- /dev/null +++ b/local/recipes/libs/cairo/source/meson-cc-tests/atomic-ops-cxx11.c @@ -0,0 +1,3 @@ +int atomic_add(int i) { return __atomic_fetch_add(&i, 1, __ATOMIC_SEQ_CST); } +int atomic_cmpxchg(int i, int j, int k) { return __atomic_compare_exchange_n(&i, &j, k, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST); } +int main(void) { return 0; } diff --git a/local/recipes/libs/cairo/source/meson-cc-tests/atomic-ops-gcc-legacy.c b/local/recipes/libs/cairo/source/meson-cc-tests/atomic-ops-gcc-legacy.c new file mode 100644 index 0000000000..99331968dd --- /dev/null +++ b/local/recipes/libs/cairo/source/meson-cc-tests/atomic-ops-gcc-legacy.c @@ -0,0 +1,3 @@ +int atomic_add(int i) { return __sync_fetch_and_add (&i, 1); } +int atomic_cmpxchg(int i, int j, int k) { return __sync_val_compare_and_swap (&i, j, k); } +int main(void) { return 0; } diff --git a/local/recipes/libs/cairo/source/meson-cc-tests/bfd-section-flags.c b/local/recipes/libs/cairo/source/meson-cc-tests/bfd-section-flags.c new file mode 100644 index 0000000000..b58118d06f --- /dev/null +++ b/local/recipes/libs/cairo/source/meson-cc-tests/bfd-section-flags.c @@ -0,0 +1,9 @@ +#include + +int +f (asection *s) +{ + return bfd_section_flags(s) == 0; +} + +int main (void) { return 0; } diff --git a/local/recipes/libs/cairo/source/meson-cc-tests/check-unused-result.c b/local/recipes/libs/cairo/source/meson-cc-tests/check-unused-result.c new file mode 100644 index 0000000000..ce7279ec8b --- /dev/null +++ b/local/recipes/libs/cairo/source/meson-cc-tests/check-unused-result.c @@ -0,0 +1,9 @@ +__attribute__((__warn_unused_result__)) void f (void) {} +__attribute__((__warn_unused_result__)) int g; + +int main(int c, char **v) +{ + (void)c; + (void)v; + return 0; +} diff --git a/local/recipes/libs/cairo/source/meson-cc-tests/fuzzer.c b/local/recipes/libs/cairo/source/meson-cc-tests/fuzzer.c new file mode 100644 index 0000000000..0ae4a3101a --- /dev/null +++ b/local/recipes/libs/cairo/source/meson-cc-tests/fuzzer.c @@ -0,0 +1,7 @@ +#include +#include + +int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) +{ + return 0; +} diff --git a/local/recipes/libs/cairo/source/meson-cc-tests/ipc_rmid_deferred_release.c b/local/recipes/libs/cairo/source/meson-cc-tests/ipc_rmid_deferred_release.c new file mode 100644 index 0000000000..2c9290d253 --- /dev/null +++ b/local/recipes/libs/cairo/source/meson-cc-tests/ipc_rmid_deferred_release.c @@ -0,0 +1,18 @@ +#include +#include +#include +int main() +{ + char *shmaddr; + int id = shmget (IPC_PRIVATE, 4, IPC_CREAT | 0600); + if (id == -1) return 2; + shmaddr = shmat (id, 0, 0); + shmctl (id, IPC_RMID, 0); + if ((char*) shmat (id, 0, 0) == (char*) -1) { + shmdt (shmaddr); + return 1; + } + shmdt (shmaddr); + shmdt (shmaddr); + return 0; +} diff --git a/local/recipes/libs/cairo/source/meson-cc-tests/mkdir-variant-1.c b/local/recipes/libs/cairo/source/meson-cc-tests/mkdir-variant-1.c new file mode 100644 index 0000000000..88910d1076 --- /dev/null +++ b/local/recipes/libs/cairo/source/meson-cc-tests/mkdir-variant-1.c @@ -0,0 +1,12 @@ +#ifdef HAVE_SYS_STAT_H +#include +#endif +#ifdef HAVE_IO_H +#include +#endif + +int main(int ac, char **av) +{ + mkdir("hello.world"); + return 0; +} diff --git a/local/recipes/libs/cairo/source/meson-cc-tests/mkdir-variant-2.c b/local/recipes/libs/cairo/source/meson-cc-tests/mkdir-variant-2.c new file mode 100644 index 0000000000..d0ab7b298d --- /dev/null +++ b/local/recipes/libs/cairo/source/meson-cc-tests/mkdir-variant-2.c @@ -0,0 +1,12 @@ +#ifdef HAVE_SYS_STAT_H +#include +#endif +#ifdef HAVE_IO_H +#include +#endif + +int main(int ac, char **av) +{ + mkdir("hello.world", 0777); + return 0; +} diff --git a/local/recipes/libs/cairo/source/meson-cc-tests/pthread.c b/local/recipes/libs/cairo/source/meson-cc-tests/pthread.c new file mode 100644 index 0000000000..035cb3a94d --- /dev/null +++ b/local/recipes/libs/cairo/source/meson-cc-tests/pthread.c @@ -0,0 +1,35 @@ +#ifndef _GNU_SOURCE +#define _GNU_SOURCE /* for PTHREAD_MUTEX_INITIALIZER under linux */ +#endif +#include + +pthread_mutex_t test_mutex_initializer = PTHREAD_MUTEX_INITIALIZER; +int test_mutex (void) +{ + int x = 0; + pthread_mutex_t mutex; + x |= pthread_mutex_init (&mutex, NULL); + x |= pthread_mutex_lock (&mutex); + x |= pthread_mutex_unlock (&mutex); + x |= pthread_mutex_destroy (&mutex); + return 0; +} + +int test_mutex_attr (void) +{ + int x = 0; + pthread_mutexattr_t attr; + pthread_mutex_t mutex; + x |= pthread_mutexattr_init (&attr); + x |= pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE); + x |= pthread_mutex_init (&mutex, &attr); + x |= pthread_mutex_lock (&mutex); + x |= pthread_mutex_unlock (&mutex); + x |= pthread_mutex_destroy (&mutex); + x |= pthread_mutexattr_destroy (&attr); + return x; +} + +int main(void) { + return 0; +} diff --git a/local/recipes/libs/cairo/source/meson.build b/local/recipes/libs/cairo/source/meson.build new file mode 100644 index 0000000000..1fb1f5317c --- /dev/null +++ b/local/recipes/libs/cairo/source/meson.build @@ -0,0 +1,864 @@ +project('cairo', 'c', + meson_version: '>= 1.3.0', + version: run_command(find_program('version.py'), check: true).stdout().strip(), + default_options: ['c_std=gnu11,c11', + 'cpp_std=gnu++11,c++11', + 'warning_level=2'], +) + +freetype_required_version = '>= 23.0.17' # Release version 2.10 +freetype_colrv1_required_version = '>= 25.0.19' # Release version 2.13 +fontconfig_required_version = '>= 2.13.0' +libpng_required_version = '>= 1.4.0' +xrender_required_version = '>= 0.6' +xcb_required_version = '>= 1.6' +xcb_render_required_version = '>= 1.6' +libudev_required_version = '>= 136' +glib_required_version = '>= 2.14' + +# library versioning +version_arr = meson.project_version().split('.') +cairo_version_major = version_arr[0].to_int() +cairo_version_minor = version_arr[1].to_int() +cairo_version_micro = version_arr[2].to_int() + +# The libtool shared library version stuff. +# Try and maintain compatibility with the previous library versioning. +cairo_version_sonum = cairo_version_major + 1 +cairo_version = cairo_version_major * 10000 + cairo_version_minor * 100 + cairo_version_micro + +if cairo_version_minor % 2 == 1 + # unstable release + cairo_libversion = '@0@.@1@.0'.format(cairo_version_sonum, cairo_version) +else + # stable release + cairo_libversion = '@0@.@1@.@2@'.format(cairo_version_sonum, cairo_version, cairo_version_micro) +endif + +conf = configuration_data() + +cc = meson.get_compiler('c') + +# Compiler flags +cflags = [] +if cc.get_id() != 'msvc' + cflags += [ + '-Wmissing-declarations', + '-Werror-implicit-function-declaration', + '-Wpointer-arith', + '-Wwrite-strings', + '-Wsign-compare', + '-Wpacked', + '-Wswitch-enum', + '-Wmissing-format-attribute', + '-Wvolatile-register-var', + '-Wstrict-aliasing=2', + '-Winit-self', + '-Wunsafe-loop-optimizations', + '-Wno-missing-field-initializers', + '-Wno-unused-parameter', + '-Wno-attributes', + '-Wno-long-long', + '-Winline' + ] + + cflags += ['-Wno-unused-but-set-variable', + '-Wno-enum-conversion' + ] + + cflags += [ + '-fno-strict-aliasing', + '-fno-common' + ] + + if get_option('optimization') in ['1', '2', '3'] + cflags += '-Wp,-D_FORTIFY_SOURCE=2' + endif + + supported_cflags = cc.get_supported_arguments(cflags) + add_project_arguments(supported_cflags, language: 'c') + + # We only wish to enable attribute(warn_unused_result) if we can prevent + # gcc from generating thousands of warnings about the misapplication of the + # attribute to void functions and variables. + warn_unused_result = '' + if supported_cflags.contains('-Wno-attributes') + if cc.compiles(files('meson-cc-tests/check-unused-result.c'), args : ['-Wno-attributes', '-Werror']) + warn_unused_result = '__attribute__((__warn_unused_result__))' + endif + endif + conf.set('WARN_UNUSED_RESULT', warn_unused_result) +endif + +if cc.get_id() == 'msvc' + # Basic usage in the cairo type system that causes spammy and useless warnings + add_project_arguments('/wd4244', '/wd4146', + # Don't warn about double -> float truncation + '/wd4305', + language : 'c') +endif + +add_project_arguments('-D_GNU_SOURCE', language: 'c') + +pkgmod = import('pkgconfig') +python3 = import('python').find_installation() + +check_sizeofs = [ + ['void *', {'conf-name': 'SIZEOF_VOID_P'}], + ['int'], + ['long'], + ['long long'], + ['size_t'], +] + +check_headers = [ + ['stdint.h'], + ['inttypes.h'], + ['sys/int_types.h'], + ['fcntl.h'], + ['unistd.h'], + ['signal.h'], + ['sys/stat.h'], + ['sys/socket.h'], + ['poll.h'], + ['sys/poll.h'], + ['sys/un.h'], + ['sched.h', {'check-funcs': ['sched_getaffinity']}], + ['sys/mman.h', {'check-funcs': ['mmap']}], + ['time.h', {'check-funcs': ['clock_gettime']}], + ['libgen.h'], + ['byteswap.h'], + ['signal.h'], + ['setjmp.h'], + ['fenv.h'], + ['sys/wait.h'], + ['sys/stat.h'], + ['io.h'], + ['fenv.h', {'check-funcs': ['feenableexcept', 'fedisableexcept', 'feclearexcept']}], + ['xlocale.h'], + ['sys/ioctl.h'], + ['intsafe.h'], + ['alloca.h'], + ['termios.h'], +] + +check_types = [ + ['uint64_t', {'headers': ['stdint.h']}], + ['uint128_t', {'headers': ['stdint.h']}], + ['__uint128_t'] +] + +check_funcs = [ + 'alarm', + 'ctime_r', + 'localtime_r', + 'gmtime_r', + 'drand48', + 'flockfile', + 'funlockfile', + 'getline', + 'link', + 'fork', + 'waitpid', + 'raise', + 'newlocale', + 'strtod_l', +] + +check_thread_flags = [ + [['-D_REENTRANT'], ['-lpthread']], + [['-pthread'], []], + [['-D_REENTRANT'], [], {'real': false}], +] + +m_dep = cc.find_library('m', required: false) +# Used in util +gtk_dep = dependency('gtk+-2.0', required: get_option('gtk2-utils')) + +deps = [m_dep] +test_deps = [] +internal_deps = [] +extra_link_args = [] + +extra_link_args += cc.get_supported_link_arguments([ + '-Wl,-Bsymbolic-functions', +]) + +if host_machine.endian() == 'big' + conf.set('WORDS_BIGENDIAN', 1) +endif + +float_order = cc.get_define('__FLOAT_WORD_ORDER__') +if float_order != '' + if float_order == cc.get_define('__ORDER_BIG_ENDIAN__') + conf.set('FLOAT_WORDS_BIGENDIAN', 1) + endif +else + # Assume same as platform endian + if host_machine.endian() == 'big' + conf.set('FLOAT_WORDS_BIGENDIAN', 1) + endif +endif + +lzo_dep = dependency('lzo2', required: get_option('lzo')) +if lzo_dep.found() + conf.set('HAVE_LZO', 1) +endif + +dl_dep = cc.find_library('dl', required: false) +if dl_dep.found() and cc.has_function('dlsym', dependencies: [dl_dep]) + deps += [dl_dep] + conf.set('CAIRO_HAS_DLSYM', 1) +elif cc.has_function('dlsym') + conf.set('CAIRO_HAS_DLSYM', 1) +elif cc.has_function('dlsym', prefix: '#include ') + conf.set('CAIRO_HAS_DLSYM', 1) +endif + +feature_conf = configuration_data() + +# Array of dictionaries, used to generate per-feature pc files +# Mandatory keys: name, description +# Optional keys: requires, libs +built_features = [] + +zlib_dep = dependency('zlib', + required: get_option('zlib'), + fallback : ['zlib', 'zlib_dep'], +) +if zlib_dep.found() + if zlib_dep.type_name() == 'internal' + internal_deps += [zlib_dep] + else + deps += [zlib_dep] + endif + conf.set('HAVE_ZLIB', 1) +endif + +png_dep = dependency('libpng', + required: get_option('png'), + version: libpng_required_version, + fallback: ['libpng', 'libpng_dep'] +) +if png_dep.found() + feature_conf.set('CAIRO_HAS_SVG_SURFACE', 1) + feature_conf.set('CAIRO_HAS_PNG_FUNCTIONS', 1) + built_features += [ + { + 'name': 'cairo-png', + 'description': 'PNG functions', + 'deps': [png_dep], + }, + { + 'name': 'cairo-svg', + 'description': 'SVG surface backend', + 'deps': [png_dep], + } + ] + + if png_dep.type_name() == 'internal' + internal_deps += [png_dep] + else + deps += [png_dep] + endif +endif + +# Disable fontconfig by default on platforms where it is optional +fontconfig_option = get_option('fontconfig') +fontconfig_required = host_machine.system() not in ['windows', 'darwin'] +fontconfig_option = fontconfig_option.disable_auto_if(not fontconfig_required) + +fontconfig_dep = dependency('fontconfig', + required: fontconfig_option, + version: fontconfig_required_version, + fallback: ['fontconfig', 'fontconfig_dep'], +) +if fontconfig_dep.found() + fc_check_funcs = [ + 'FcInit', + 'FcFini' + ] + + if fontconfig_dep.type_name() == 'internal' + foreach func : fc_check_funcs + conf.set('HAVE_@0@'.format(func.to_upper()), 1) + endforeach + internal_deps += [fontconfig_dep] + else + check_funcs += fc_check_funcs + deps += [fontconfig_dep] + endif + + feature_conf.set('CAIRO_HAS_FC_FONT', 1) + built_features += [{ + 'name': 'cairo-fc', + 'description': 'Fontconfig font backend', + 'deps': [fontconfig_dep], + }] +endif + +ttx = find_program('ttx', required: false) + +# Disable FreeType by default on platforms where it is optional +freetype_option = get_option('freetype') +freetype_required = host_machine.system() not in ['windows', 'darwin'] +freetype_option = freetype_option.disable_auto_if(not freetype_required) + +freetype_dep = dependency('freetype2', + required: freetype_option, + version: freetype_required_version, + fallback: ['freetype2', 'freetype_dep'], +) +if freetype_dep.found() + feature_conf.set('CAIRO_HAS_FT_FONT', 1) + built_features += [{ + 'name': 'cairo-ft', + 'description': 'FreeType font backend', + 'deps': [freetype_dep], + # cairo-ft.h includes fontconfig.h so it needs its cflags + 'compile-deps': [fontconfig_dep.partial_dependency(compile_args: true, includes: true)], + }] + + if freetype_dep.type_name() == 'internal' + if freetype_dep.version().version_compare(freetype_colrv1_required_version) + conf.set('HAVE_FT_SVG_DOCUMENT', 1) + conf.set('HAVE_FT_LOAD_NO_SVG', 1) + conf.set('HAVE_FT_COLR_V1', 1) + endif + internal_deps += [freetype_dep] + else + if png_dep.found() and \ + cc.has_type('FT_SVG_Document', dependencies: freetype_dep, prefix: '#include ') + conf.set('HAVE_FT_SVG_DOCUMENT', 1) + if ttx.found() + conf.set('CAIRO_CAN_TEST_TTX_FONT', 1) + endif + endif + if cc.has_define('FT_LOAD_NO_SVG', dependencies: freetype_dep, prefix: '#include ') + conf.set('HAVE_FT_LOAD_NO_SVG', 1) + endif + if freetype_dep.version().version_compare(freetype_colrv1_required_version) and \ + cc.has_function('FT_Get_Color_Glyph_Paint', dependencies: freetype_dep) + conf.set('HAVE_FT_COLR_V1', 1) + endif + deps += [freetype_dep] + endif +endif + +x11_dep = dependency('x11', required: get_option('xlib')) +xext_dep = dependency('xext', required: get_option('xlib')) +if x11_dep.found() and xext_dep.found() + feature_conf.set('CAIRO_HAS_XLIB_SURFACE', 1) + built_features += [{ + 'name': 'cairo-xlib', + 'description': 'Xlib surface backend', + 'deps': [x11_dep, xext_dep], + }] + + extra_headers = ['X11/Xlibint.h', 'X11/Xproto.h'] + check_headers += [ + ['X11/extensions/XShm.h', {'extra-headers': extra_headers}], + ['X11/extensions/shmproto.h', {'extra-headers': extra_headers}], + ['X11/extensions/shmstr.h', {'extra-headers': extra_headers}], + ] + deps += [x11_dep, xext_dep] + + # Can skip the run check by providing the result in a cross file or + # native file as bool property value. + prop = meson.get_external_property('ipc_rmid_deferred_release', meson.is_cross_build() ? 'false' : 'auto') + # We don't know the type of prop (bool, string) but need to differentiate + # between a set value (bool) or the fallback value (string), so convert to + # a string and check the string value. + prop_str = '@0@'.format(prop) + if prop_str in ['true', 'false'] + ipc_rmid_deferred_release = (prop_str == 'true') + message('IPC_RMID_DEFERRED_RELEASE:', ipc_rmid_deferred_release) + elif prop_str == 'auto' + res = cc.run(files('meson-cc-tests/ipc_rmid_deferred_release.c'), + dependencies: [x11_dep, xext_dep], + name: 'shmctl IPC_RMID allowes subsequent attaches') + + ipc_rmid_deferred_release = (res.returncode() == 0) + else + error('Unexpected value for external property ipc_rmid_deferred_release: @0@'.format(prop_str)) + endif + + conf.set10('IPC_RMID_DEFERRED_RELEASE', ipc_rmid_deferred_release) +endif + +if feature_conf.get('CAIRO_HAS_XLIB_SURFACE', 0) == 1 + xrender_dep = dependency('xrender', required: get_option('xlib'), + version: xrender_required_version) + + if xrender_dep.found() + check_funcs += [ + 'XRenderCreateSolidFill', + 'XRenderCreateLinearGradient', + 'XRenderCreateRadialGradient', + 'XRenderCreateConicalGradient', + ] + + deps += [xrender_dep] + + built_features += [{ + 'name': 'cairo-xlib-xrender', + 'description': 'Xlib Xrender surface backend', + 'deps': [xrender_dep], + }] + feature_conf.set('CAIRO_HAS_XLIB_XRENDER_SURFACE', 1) + endif +endif + +xcb_dep = dependency('xcb', required: get_option('xcb'), + version: xcb_required_version) +xcb_render_dep = dependency('xcb-render', required: get_option('xcb'), + version: xcb_render_required_version) +if xcb_dep.found() and xcb_render_dep.found() + feature_conf.set('CAIRO_HAS_XCB_SURFACE', 1) + built_features += [{ + 'name': 'cairo-xcb', + 'description': 'XCB surface backend', + 'deps': [xcb_dep, xcb_render_dep], + }] + + deps += [xcb_dep, xcb_render_dep] +endif + +if feature_conf.get('CAIRO_HAS_XCB_SURFACE', 0) == 1 and feature_conf.get('CAIRO_HAS_XLIB_SURFACE', 0) == 1 + x11xcb_dep = dependency('x11-xcb', required: get_option('xlib-xcb')) + if x11xcb_dep.found() + deps += [x11xcb_dep] + feature_conf.set('CAIRO_HAS_XLIB_XCB_FUNCTIONS', 1) + built_features += [{ + 'name': 'cairo-xlib-xcb', + 'description': 'Xlib/XCB functions', + 'deps': [x11xcb_dep], + }] + endif +endif + +if feature_conf.get('CAIRO_HAS_XCB_SURFACE', 0) == 1 + xcbshm_dep = dependency('xcb-shm', required: get_option('xcb')) + if xcbshm_dep.found() + #feature_conf.set('CAIRO_HAS_XCB_SHM_FUNCTIONS', 1) + #deps += [xcbshm_dep] + #built_features += [{ + # 'name': 'cairo-xcb-shm', + # 'description': 'XCB/SHM functions', + # 'deps': [xcbshm_dep], + #}] + endif +endif + +if host_machine.system() == 'darwin' and not get_option('quartz').disabled() + quartz_deps = dependency('appleframeworks', modules : ['CoreFoundation', 'ApplicationServices'], required: get_option('quartz')) + + if quartz_deps.found() + deps += [quartz_deps] + + feature_conf.set('CAIRO_HAS_QUARTZ_SURFACE', 1) + feature_conf.set('CAIRO_HAS_QUARTZ_IMAGE_SURFACE', 1) + + built_features += [ + { + 'name': 'cairo-quartz', + 'description': 'Quartz surface backend', + 'deps': quartz_deps, + }, + { + 'name': 'cairo-quartz-image', + 'description': 'Quartz Image surface backend', + 'deps': quartz_deps, + }] + compiler = meson.get_compiler('c') + if compiler.has_function('CTFontDrawGlyphs', prefix: '#include ', + dependencies: quartz_deps) + built_features += [ + { + 'name': 'cairo-quartz-font', + 'description': 'Quartz font backend', + 'deps': quartz_deps, + }] + feature_conf.set('CAIRO_HAS_QUARTZ_FONT', 1) + endif + endif +endif + +if host_machine.system() == 'windows' + add_languages('cpp', native: false) + + add_project_arguments('-DWIN32_LEAN_AND_MEAN', '-DNOMINMAX', language: ['c', 'cpp']) + + win32_extra_deps = [ + cc.find_library('gdi32'), + cc.find_library('msimg32'), + ] + + deps += win32_extra_deps + + feature_conf.set('CAIRO_HAS_WIN32_SURFACE', 1) + feature_conf.set('CAIRO_HAS_WIN32_FONT', 1) + + built_features += [ + { + 'name': 'cairo-win32', + 'description': 'Microsoft Windows surface backend', + 'deps': win32_extra_deps, + }, + { + 'name': 'cairo-win32-font', + 'description': 'Microsoft Windows font backend', + 'deps': win32_extra_deps, + } + ] + + cpp_compiler = meson.get_compiler('cpp') + d2d_dep = cpp_compiler.find_library('d2d1', required: get_option('dwrite')) + dwrite_dep = cpp_compiler.find_library('dwrite', required: get_option('dwrite')) + d2d_header = cpp_compiler.has_header('d2d1.h') + d2d_3_header = cpp_compiler.has_header('d2d1_3.h') + dwrite_header = cpp_compiler.has_header('dwrite.h') + wincodec_dep = cpp_compiler.find_library('windowscodecs', required: get_option('dwrite')) + wincodec_header = cpp_compiler.has_header('wincodec.h') + + if d2d_dep.found() and dwrite_dep.found() and d2d_header and dwrite_header and wincodec_dep.found() and wincodec_header + feature_conf.set('CAIRO_HAS_DWRITE_FONT', 1) + built_features += [{ + 'name': 'cairo-dwrite-font', + 'description': 'Microsoft Windows DWrite font backend', + 'deps': [dwrite_dep, d2d_dep, wincodec_dep], + }] + deps += [dwrite_dep, d2d_dep, wincodec_dep] + + if cpp_compiler.has_header('d2d1_3.h') + conf.set('HAVE_D2D1_3_H', 1) + endif + + add_project_arguments('-DWINVER=_WIN32_WINNT_WIN10', '-D_WIN32_WINNT=_WIN32_WINNT_WIN10', '-DNTDDI_VERSION=NTDDI_WIN10_RS3', language: ['c', 'cpp']) + else + add_project_arguments('-DWINVER=_WIN32_WINNT_WIN2K', '-D_WIN32_WINNT=_WIN32_WINNT_WIN2K', language: ['c', 'cpp']) + endif +endif + +gobject_dep = dependency('gobject-2.0', + required: get_option('glib'), + fallback: ['glib', 'libgobject_dep'] +) +glib_dep = dependency('glib-2.0', + required: get_option('glib'), + version: glib_required_version, + fallback: ['glib', 'libglib_dep'], +) +if gobject_dep.found() and glib_dep.found() + feature_conf.set('CAIRO_HAS_GOBJECT_FUNCTIONS', 1) +endif + +if zlib_dep.found() + feature_conf.set('CAIRO_HAS_SCRIPT_SURFACE', 1) + built_features += [{ + 'name': 'cairo-script', + 'description': 'script surface backend', + 'deps': [zlib_dep], + }] +endif + +if zlib_dep.found() + feature_conf.set('CAIRO_HAS_PS_SURFACE', 1) + built_features += [{ + 'name': 'cairo-ps', + 'description': 'PostScript surface backend', + 'deps': [zlib_dep], + }] +endif + +if zlib_dep.found() + feature_conf.set('CAIRO_HAS_PDF_SURFACE', 1) + built_features += [{ + 'name': 'cairo-pdf', + 'description': 'PDF surface backend', + 'deps': [zlib_dep], + }] +endif + +if zlib_dep.found() + conf.set('CAIRO_HAS_INTERPRETER', 1) +endif + +bfd_dep = cc.find_library('bfd', has_headers: ['bfd.h'], required: get_option('symbol-lookup')) +if bfd_dep.found() and \ + cc.has_function('bfd_openr', dependencies: [bfd_dep]) and \ + cc.links(files('meson-cc-tests/bfd-section-flags.c'), name: 'bfd_section_flags', dependencies: bfd_dep) + conf.set('HAVE_BFD', 1) + deps += [bfd_dep] +elif get_option('symbol-lookup').enabled() + error('symbol lookup via bfd was enabled via options but is not available (bfd might be too old)') +endif + +if conf.get('HAVE_BFD', 0) == 1 + conf.set('CAIRO_HAS_SYMBOL_LOOKUP', 1) +endif + +if feature_conf.get('CAIRO_HAS_PS_SURFACE', 0) == 1 + gs = find_program('gs', required: get_option('tests')) + libspectre_dep = dependency('libspectre', version: '>= 0.2.0', + required: get_option('spectre')) + if gs.found() and libspectre_dep.found() + conf.set('CAIRO_CAN_TEST_PS_SURFACE', 1) + endif + + if libspectre_dep.found() + conf.set('CAIRO_HAS_SPECTRE', 1) + test_deps += [libspectre_dep] + endif +endif + +if feature_conf.get('CAIRO_HAS_PDF_SURFACE', 0) == 1 + poppler_dep = dependency('poppler-glib', version: '>= 0.17.4', + required: get_option('tests')) + if poppler_dep.found() and cc.has_function('poppler_page_render', dependencies: [poppler_dep]) + conf.set('CAIRO_CAN_TEST_PDF_SURFACE', 1) + test_deps += [poppler_dep] + endif +endif + +if feature_conf.get('CAIRO_HAS_SVG_SURFACE', 0) == 1 + librsvg_dep = dependency('librsvg-2.0', version: '>= 2.35.0', + required: get_option('tests')) + if librsvg_dep.found() + conf.set('CAIRO_CAN_TEST_SVG_SURFACE', 1) + test_deps += [librsvg_dep] + endif +endif + +pixman_dep = dependency('pixman-1', + version: '>= 0.40.0', + fallback: ['pixman', 'idep_pixman'], +) +if pixman_dep.found() + feature_conf.set('CAIRO_HAS_IMAGE_SURFACE', 1) + conf.set('HAS_PIXMAN_GLYPHS', 1) + if pixman_dep.version().version_compare('>= 0.42.3') + conf.set('HAS_PIXMAN_r8g8b8_sRGB', 1) + endif + if pixman_dep.type_name() == 'internal' + internal_deps += [pixman_dep] + else + deps += [pixman_dep] + endif +endif + +feature_conf.set('CAIRO_FEATURES_H', true) +feature_conf.set('CAIRO_HAS_USER_FONT', 1) + +feature_conf.set('CAIRO_HAS_MIME_SURFACE', 1) +feature_conf.set('CAIRO_HAS_RECORDING_SURFACE', 1) +feature_conf.set('CAIRO_HAS_OBSERVER_SURFACE', 1) + +if not get_option('tee').disabled() + feature_conf.set('CAIRO_HAS_TEE_SURFACE', 1) + built_features += [{ + 'name': 'cairo-tee', + 'description': 'Tee surface backend', + }] +endif + +incbase = include_directories('.') + +foreach check : check_sizeofs + type = check[0] + opts = check.length() > 1 ? check[1] : {} + + conf_name = opts.get('conf-name', 'SIZEOF_@0@'.format(type.underscorify().to_upper())) + + conf.set(conf_name, cc.sizeof(type)) +endforeach + +foreach check : check_headers + name = check[0] + opts = check.length() > 1 ? check[1] : {} + prefix = '' + + foreach header : opts.get('extra-headers', []) + prefix += '#include <@0@>\n'.format(header) + endforeach + + if cc.has_header(name, prefix: prefix) + conf.set('HAVE_@0@'.format(name.to_upper().underscorify()), 1) + check_funcs += check.length() > 1 ? check[1].get('check-funcs', []) : [] + endif +endforeach + +foreach check : check_types + name = check[0] + opts = check.length() > 1 ? check[1] : {} + prefix = '' + + foreach header : opts.get('headers', []) + prefix += '#include <@0@>\n'.format(header) + endforeach + + if cc.has_type(name, prefix: prefix) + conf.set('HAVE_@0@'.format(name.to_upper()), 1) + endif +endforeach + +foreach name : check_funcs + if cc.has_function(name, dependencies: deps) + conf.set('HAVE_@0@'.format(name.to_upper()), 1) + endif +endforeach + +conf.set('HAVE_STRNDUP', cc.has_function('strndup', prefix : '#include ')) + +pthread_c_args = [] +pthread_link_args = [] + +foreach thread_flags : check_thread_flags + if not conf.has('CAIRO_HAS_PTHREAD') + cflags = thread_flags[0] + lflags = thread_flags[1] + real_pthread = thread_flags.length() > 2 ? thread_flags[2].get('real', true) : true + + if cc.links(files('meson-cc-tests/pthread.c'), args: cflags + lflags, name: 'pthreads') + conf.set('CAIRO_HAS_PTHREAD', 1) + if real_pthread + conf.set('CAIRO_HAS_REAL_PTHREAD', 1) + endif + pthread_c_args = cflags + pthread_link_args = lflags + endif + endif +endforeach + +extra_link_args += pthread_link_args + +# Atomics are an optional feature in C11. Also need to check that C11 atomics are lock free. +# Windows can't use C11 atomics as some files are compiled with C++. +if host_machine.system() != 'windows' + if cc.links(files('meson-cc-tests/atomic-ops-c11.c'), name: 'Atomic ops: c11') + conf.set('HAVE_C11_ATOMIC_PRIMITIVES', 1) + elif cc.links(files('meson-cc-tests/atomic-ops-cxx11.c'), name: 'Atomic ops: cxx11') + conf.set('HAVE_CXX11_ATOMIC_PRIMITIVES', 1) + elif cc.links(files('meson-cc-tests/atomic-ops-gcc-legacy.c'), name: 'Atomic ops: gcc legacy') + conf.set('HAVE_GCC_LEGACY_ATOMICS', 1) + elif cc.has_header('atomic_ops.h') + conf.set('HAVE_LIB_ATOMIC_OPS', 1) + elif cc.has_header('libkern/OSAtomic.h') + conf.set('HAVE_OS_ATOMIC_OPS', 1) + else + warning('Atomic ops not supported.') + endif +endif + +test_mkdir_c_args = [] +if conf.get('HAVE_SYS_STAT_H', 0) == 1 + test_mkdir_c_args += ['-DHAVE_SYS_STAT_H'] +endif + +if conf.get('HAVE_IO_H', 0) == 1 + test_mkdir_c_args += ['-DHAVE_IO_H'] +endif + +if cc.links(files('meson-cc-tests/mkdir-variant-1.c'), args: test_mkdir_c_args) + conf.set('HAVE_MKDIR', 1) +elif cc.links(files('meson-cc-tests/mkdir-variant-2.c'), args: test_mkdir_c_args) + conf.set('HAVE_MKDIR', 2) +else + conf.set('HAVE_MKDIR', 0) +endif + +if not ['x86', 'x86_64'].contains(host_machine.cpu_family()) + conf.set('ATOMIC_OP_NEEDS_MEMORY_BARRIER', 1) +endif + +have_ld_preload = ['linux', 'freebsd', 'darwin', 'dragonfly', 'sunos'].contains(host_machine.system()) + +if have_ld_preload and zlib_dep.found() and conf.get('CAIRO_HAS_REAL_PTHREAD', 0) == 1 and conf.get('CAIRO_HAS_DLSYM', 0) == 1 + conf.set('CAIRO_HAS_TRACE', 1) +endif + +rt_dep = cc.find_library('rt', required: false) +have_shm = false +if rt_dep.found() and cc.has_function('shm_open', dependencies: [rt_dep]) + have_shm = true +endif + +# This to make sure we don't run checks against internal deps +deps += internal_deps + +subdir('src') + +if feature_conf.get('CAIRO_HAS_PNG_FUNCTIONS', 0) == 1 + subdir('boilerplate') +else + cairoboilerplate_dep = dependency('', required: false) +endif + +subdir('util') + +if not get_option('tests').disabled() and feature_conf.get('CAIRO_HAS_PNG_FUNCTIONS', 0) == 1 + subdir('test') + subdir('perf') +endif + +if get_option('gtk_doc') + doc_srcdir = include_directories('src') + subdir('doc/public') +endif + +configure_file(output: 'config.h', configuration: conf) + +foreach feature: built_features + feature_deps = feature.get('deps', []) + feature_libs = feature.get('libs', []) + feature_compile_deps = feature.get('compile-deps', []) + pkgmod.generate(libraries: [libcairo, feature_deps, feature_libs], + name: feature['name'], + description: feature['description'] + ' for cairo graphics library', + ) + meson.override_dependency(feature['name'], + declare_dependency(dependencies: [libcairo_dep, feature_deps, feature_compile_deps], + link_args: feature_libs, + ) + ) +endforeach + +# summary +summary({ + 'Image': true, + 'Recording': true, + 'Observer': true, + 'Mime': true, + 'Tee': feature_conf.get('CAIRO_HAS_TEE_SURFACE', 0) == 1, + 'Xlib': feature_conf.get('CAIRO_HAS_XLIB_SURFACE', 0) == 1, + 'Xlib Xrender': feature_conf.get('CAIRO_HAS_XLIB_XRENDER_SURFACE', 0) == 1, + 'Quartz': feature_conf.get('CAIRO_HAS_QUARTZ_SURFACE', 0) == 1, + 'Quartz-image': feature_conf.get('CAIRO_HAS_QUARTZ_IMAGE_SURFACE', 0) == 1, + 'XCB': feature_conf.get('CAIRO_HAS_XCB_SURFACE', 0) == 1, + 'Win32': feature_conf.get('CAIRO_HAS_WIN32_SURFACE', 0) == 1, + 'CairoScript': feature_conf.get('CAIRO_HAS_SCRIPT_SURFACE', 0) == 1, + 'PostScript': feature_conf.get('CAIRO_HAS_PS_SURFACE', 0) == 1, + 'PDF': feature_conf.get('CAIRO_HAS_PDF_SURFACE', 0) == 1, + 'SVG': feature_conf.get('CAIRO_HAS_SVG_SURFACE', 0) == 1, + }, section: 'Surface Backends', bool_yn: true) + +summary({ + 'User': true, + 'FreeType': feature_conf.get('CAIRO_HAS_FT_FONT', 0) == 1, + 'Fontconfig': feature_conf.get('CAIRO_HAS_FC_FONT', 0) == 1, + 'Win32': feature_conf.get('CAIRO_HAS_WIN32_FONT', 0) == 1, + 'Win32 DWrite': feature_conf.get('CAIRO_HAS_DWRITE_FONT', 0) == 1, + 'Quartz': feature_conf.get('CAIRO_HAS_QUARTZ_FONT', 0) == 1, + }, section: 'Font Backends', bool_yn: true) + +summary({ + 'PNG functions': feature_conf.get('CAIRO_HAS_PNG_FUNCTIONS', 0) == 1, + 'X11-xcb': feature_conf.get('CAIRO_HAS_XLIB_XCB_FUNCTIONS', 0) == 1, + 'XCB-shm': feature_conf.get('CAIRO_HAS_XCB_SHM_FUNCTIONS', 0) == 1, + }, section: 'Functions', bool_yn: true) + +summary({ + 'cairo-trace:': conf.get('CAIRO_HAS_TRACE', 0) == 1, + 'cairo-script-interpreter': conf.get('CAIRO_HAS_INTERPRETER', 0) == 1, + 'API reference': get_option('gtk_doc'), + }, section: 'Features and Utilities', bool_yn: true) diff --git a/local/recipes/libs/cairo/source/meson.options b/local/recipes/libs/cairo/source/meson.options new file mode 100644 index 0000000000..8aa6814bb3 --- /dev/null +++ b/local/recipes/libs/cairo/source/meson.options @@ -0,0 +1,30 @@ +# Cairo font backends +option('dwrite', type : 'feature', value : 'auto') +option('fontconfig', type : 'feature', value : 'auto') +option('freetype', type : 'feature', value : 'auto') + +# Cairo surface backends +option('png', type : 'feature', value : 'auto') # png and svg surfaces +option('quartz', type : 'feature', value : 'auto') +option('tee', type : 'feature', value : 'auto') +option('xcb', type : 'feature', value : 'auto') +option('xlib', type : 'feature', value : 'auto') +option('xlib-xcb', type : 'feature', value : 'disabled') +option('zlib', type : 'feature', value : 'auto') # script, ps, pdf, xml surfaces + +# Tests +option('tests', type : 'feature', value : 'auto') + +# Util deps +option('lzo', type : 'feature', value : 'auto') +option('gtk2-utils', type : 'feature', value : 'disabled') + +# Misc deps +option('glib', type : 'feature', value : 'auto') +option('spectre', type : 'feature', value : 'auto') +option('symbol-lookup', type: 'feature', value : 'auto', + description: 'Symbol lookup in debug utils via binutils/bfd') + +# Documentation +option('gtk_doc', type : 'boolean', value : false, + description: 'Build the Cairo API reference (depends on gtk-doc)') diff --git a/local/recipes/libs/cairo/source/perf/.gitignore b/local/recipes/libs/cairo/source/perf/.gitignore new file mode 100644 index 0000000000..02af7a93cd --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/.gitignore @@ -0,0 +1,30 @@ +TAGS +tags +cairo-analyse-trace +cairo-perf +cairo-perf-micro +cairo-perf-print +cairo-perf-trace +cairo-perf-chart +cairo-perf-compare-backends +cairo-perf-diff-files +cairo-perf-graph-files +cairo-traces +valgrind-log +callgrind.out.* +index.html +*.png +*.perf +*.o +*.gcda +*.gcno +*.exe +*.manifest +*.obj +*.ilk +*.suo +*.lib +*.pdb +*~ +.*.sw? +*.data diff --git a/local/recipes/libs/cairo/source/perf/COPYING b/local/recipes/libs/cairo/source/perf/COPYING new file mode 100644 index 0000000000..17754cf7b2 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/COPYING @@ -0,0 +1,5 @@ +Cairo is free software. + +These tests are mainly available under a liberal MIT license to simplify +any use of the code for reference purposes. Please check the opening comment +of each file for copyright and licensing information. diff --git a/local/recipes/libs/cairo/source/perf/README b/local/recipes/libs/cairo/source/perf/README new file mode 100644 index 0000000000..1b1c19a1f4 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/README @@ -0,0 +1,239 @@ +This is cairo's micro-benchmark performance test suite. + +One of the simplest ways to run this performance suite is: + + make perf + +which will give a report of the speed of each individual test. See +more details on other options for running the suite below. + +A macro test suite (with full traces and more intensive benchmarks) is +also available; for this, see https://cgit.freedesktop.org/cairo-traces. +The macro-benchmarks are better measures of actual real-world +performance, and should be preferred over the micro-benchmarks (and over +make perf) for identifying performance regressions or improvements. If +you copy or symlink this repository at cairo/perf/cairo-traces, then +make perf will run those tests as well. + +Running the micro-benchmarks +---------------------------- +The micro-benchmark performance suite is composed of a series of +hand-written, short, synthetic tests that measure the speed of doing a +simple operation such as painting a surface or showing glyphs. These aim +to give very good feedback on whether a performance related patch is +successful without causing any performance degradations elsewhere. + +The micro-benchmarks are compiled into a single executable called +cairo-perf-micro, which is what "make perf" executes. Some +examples of running it: + + # Report on all tests with default number of iterations: + ./cairo-perf-micro + + # Report on 100 iterations of all gradient tests: + ./cairo-perf-micro -i 100 gradient + + # Generate raw results for 10 iterations into cairo.perf + ./cairo-perf-micro -r -i 10 > cairo.perf + # Append 10 more iterations of the paint test + ./cairo-perf-micro -r -i 10 paint >> cairo.perf + +Raw results aren't useful for reading directly, but are quite useful +when using cairo-perf-diff to compare separate runs (see more +below). The advantage of using the raw mode is that test runs can be +generated incrementally and appended to existing reports. + +Generating comparisons of separate runs +--------------------------------------- +It's often useful to generate a chart showing the comparison of two +separate runs of the cairo performance suite, (for example, after +applying a patch intended to improve cairo's performance). The +cairo-perf-diff script can be used to compare two report files +generated by cairo-perf. + +Again, by way of example: + + # Show performance changes from cairo-orig.perf to cairo-patched.perf + ./cairo-perf-diff cairo-orig.perf cairo-patched.perf + +This will work whether the data files were generate in raw mode (with +cairo-perf -r) or cooked, (cairo-perf without -r). + +Finally, in its most powerful mode, cairo-perf-diff accepts two git +revisions and will do all the work of checking each revision out, +building it, running cairo-perf for each revision, and finally +generating the report. Obviously, this mode only works if you are +using cairo within a git repository, (and not from a tar file). Using +this mode is as simple as passing the git revisions to be compared to +cairo-perf-diff: + + # Compare cairo 1.2.6 to cairo 1.4.0 + ./cairo-perf-diff 1.2.6 1.4.0 + + # Measure the impact of the latest commit + ./cairo-perf-diff HEAD~1 HEAD + +As a convenience, this common desire to measure a single commit is +supported by passing a single revision to cairo-perf-diff, in which +case it will compare it to the immediately preceding commit. So for +example: + + # Measure the impact of the latest commit + ./cairo-perf-diff HEAD + + # Measure the impact of an arbitrary commit by SHA-1 + ./cairo-perf-diff aa883123d2af90 + +Also, when passing git revisions to cairo-perf-diff like this, it will +automatically cache results and re-use them rather than re-running +cairo-perf over and over on the same versions. This means that if you +ask for a report that you've generated in the past, cairo-perf-diff +should return it immediately. + +Now, sometimes it is desirable to generate more iterations rather than +re-using cached results. In this case, the -f flag can be used to +force cairo-perf-diff to generate additional results in addition to +what has been cached: + + # Measure the impact of latest commit (force more measurement) + ./cairo-perf-diff -f + +And finally, the -f mode is most useful in conjunction with the -- +option to cairo-perf-diff which allows you to pass options to the +underlying cairo-perf runs. This allows you to restrict the additional +test runs to a limited subset of the tests. + +For example, a frequently used trick is to first generate a chart with +a very small number of iterations for all tests: + + ./cairo-perf-diff HEAD + +Then, if any of the results look suspicious, (say there's a slowdown +reported in the text tests, but you think the text test shouldn't be +affected), then you can force more iterations to be tested for only +those tests: + + ./cairo-perf-diff -f HEAD -- text + +Generating comparisons of different backends +-------------------------------------------- +An alternate question that is often asked is, "how does the speed of one +backend compare to another?". cairo-perf-compare-backends can read files +generated by cairo-perf and produces a comparison of the backends for every +test. + +Again, by way of example: + + # Show relative performance of the backends + ./cairo-perf-compare-backends cairo.perf + +This will work whether the data files were generate in raw mode (with +cairo-perf -r) or cooked, (cairo-perf without -r). + + +Creating a new performance test +------------------------------- +This is where we could use everybody's help. If you have encountered a +sequence of cairo operations that are slower than you would like, then +please provide a performance test. Writing a test is very simple, it +requires you to write only a small C file with a couple of functions, +one of which exercises the cairo calls of interest. + +Here is the basic structure of a performance test file: + + /* Copyright © 2006 Kind Cairo User + * + * ... Licensing information here ... + * Please copy the MIT blurb as in other tests + */ + + #include "cairo-perf.h" + + static cairo_time_t + do_my_new_test (cairo_t *cr, int width, int height) + { + cairo_perf_timer_start (); + + /* Make the cairo calls to be measured */ + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); + } + + void + my_new_test (cairo_perf_t *perf, cairo_t *cr, int width, int height) + { + /* First do any setup for which the execution time should not + * be measured. For example, this might include loading + * images from disk, creating patterns, etc. */ + + /* Then launch the actual performance testing. */ + cairo_perf_run (perf, "my_new_test", do_my_new_test); + + /* Finally, perform any cleanup from the setup above. */ + } + +That's really all there is to writing a new test. The first function +above is the one that does the real work and returns a timing +number. The second function is the one that will be called by the +performance test rig (see below for how to accomplish that), and +allows for multiple performance cases to be written in one file, +(simply call cairo_perf_run once for each case, passing the +appropriate callback function to each). + +We go through this dance of indirectly calling your own function +through cairo_perf_run so that cairo_perf_run can call your function +many times and measure statistical properties over the many runs. + +Finally, to fully integrate your new test case you just need to add +your new test to three different lists. (TODO: We should set this up +better so that the lists are maintained automatically---computed from +the list of files in cairo/perf, for example). Here's what needs to be +added: + + 1. Makefile.am: Add the new file name to the cairo_perf_SOURCES list + + 2. cairo-perf.h: Add a new CAIRO_PERF_DECL line with the name of your + function, (my_new_test in the example above) + + 3. cairo-perf-micro.c: Add a new row to the list at the end of the + file. A typical entry would look like: + + { my_new_test, 16, 64 } + + The last two numbers are a minimum and a maximum image size at + which your test should be exercised. If these values are the same, + then only that size will be used. If they are different, then + intermediate sizes will be used by doubling. So in the example + above, three tests would be performed at sizes of 16x16, 32x32 and + 64x64. + + +How to run cairo-perf-diff on WINDOWS +------------------------------------- +This section explains the specifics of running cairo-perf-diff under +win32 plateforms. It assumes that you have installed a UNIX-like shell +environment such as MSYS (distributed as part of MinGW). + + 1. From your Mingw32 window, be sure to have all of your MSVC environ- + ment variables set up for proper compilation using 'make' + + 2. Add the %GitBaseDir%/Git/bin path to your environment, replacing the + %GitBaseDir% by whatever directory your Git version is installed to. + + 3. Comment out the "UNSET CDPATH" line in the git-sh-setup script + (located inside the ...Git/bin directory) by putting a "#" at the + beginning of the line. + +you should be ready to go ! + +From your mingw32 window, go to your cairo/perf directory and run the +cairo-perf-diff script with the right arguments. + +Thanks for your contributions and have fun with cairo! + +TODO +---- +Add a control language for crafting and running small sets of micro +benchmarks. diff --git a/local/recipes/libs/cairo/source/perf/cairo-analyse-trace.c b/local/recipes/libs/cairo/source/perf/cairo-analyse-trace.c new file mode 100644 index 0000000000..dda33a2e03 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-analyse-trace.c @@ -0,0 +1,590 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2006 Mozilla Corporation + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2009 Chris Wilson + * Copyright © 2011 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the authors not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The authors make no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Vladimir Vukicevic + * Carl Worth + * Chris Wilson + */ + +#include "config.h" + +#include "cairo-perf.h" +#include "cairo-stats.h" + +#include "cairo-boilerplate-getopt.h" +#include +#include "cairo-missing.h" + +/* rudely reuse bits of the library... */ +#include "../src/cairo-error-private.h" + +/* For basename */ +#ifdef HAVE_LIBGEN_H +#include +#endif +#include /* isspace() */ + +#include +#include + +#ifdef _MSC_VER +#include "dirent-win32.h" + +static char * +basename_no_ext (char *path) +{ + static char name[_MAX_FNAME + 1]; + + _splitpath (path, NULL, NULL, name, NULL); + + name[_MAX_FNAME] = '\0'; + + return name; +} + + +#else +#include + +static char * +basename_no_ext (char *path) +{ + char *dot, *name; + + name = basename (path); + + dot = strchr (name, '.'); + if (dot) + *dot = '\0'; + + return name; +} + +#endif + +#if HAVE_UNISTD_H +#include +#endif + +#include + +#if HAVE_FCFINI +#include +#endif + +struct trace { + const cairo_boilerplate_target_t *target; + void *closure; + cairo_surface_t *surface; +}; + +cairo_bool_t +cairo_perf_can_run (cairo_perf_t *perf, + const char *name, + cairo_bool_t *is_explicit) +{ + unsigned int i; + char *copy, *dot; + cairo_bool_t ret; + + if (is_explicit) + *is_explicit = FALSE; + + if (perf->exact_names) { + if (is_explicit) + *is_explicit = TRUE; + return TRUE; + } + + if (perf->num_names == 0 && perf->num_exclude_names == 0) + return TRUE; + + copy = xstrdup (name); + dot = strchr (copy, '.'); + if (dot != NULL) + *dot = '\0'; + + if (perf->num_names) { + ret = TRUE; + for (i = 0; i < perf->num_names; i++) + if (strstr (copy, perf->names[i])) { + if (is_explicit) + *is_explicit = strcmp (copy, perf->names[i]) == 0; + goto check_exclude; + } + + ret = FALSE; + goto done; + } + +check_exclude: + if (perf->num_exclude_names) { + ret = FALSE; + for (i = 0; i < perf->num_exclude_names; i++) + if (strstr (copy, perf->exclude_names[i])) { + if (is_explicit) + *is_explicit = strcmp (copy, perf->exclude_names[i]) == 0; + goto done; + } + + ret = TRUE; + goto done; + } + +done: + free (copy); + + return ret; +} + +static cairo_surface_t * +surface_create (void *closure, + cairo_content_t content, + double width, + double height, + long uid) +{ + struct trace *args = closure; + return cairo_surface_create_similar (args->surface, content, width, height); +} + +static int user_interrupt; + +static void +interrupt (int sig) +{ + if (user_interrupt) { + signal (sig, SIG_DFL); + raise (sig); + } + + user_interrupt = 1; +} + +static void +describe (cairo_perf_t *perf, + void *closure) +{ + char *description = NULL; + + if (perf->has_described_backend) + return; + perf->has_described_backend = TRUE; + + if (perf->target->describe) + description = perf->target->describe (closure); + + if (description == NULL) + return; + + free (description); +} + +static void +execute (cairo_perf_t *perf, + struct trace *args, + const char *trace) +{ + char *trace_cpy, *name; + const cairo_script_interpreter_hooks_t hooks = { + .closure = args, + .surface_create = surface_create, + }; + + trace_cpy = xstrdup (trace); + name = basename_no_ext (trace_cpy); + + if (perf->list_only) { + printf ("%s\n", name); + free (trace_cpy); + return; + } + + describe (perf, args->closure); + + { + cairo_script_interpreter_t *csi; + cairo_status_t status; + unsigned int line_no; + + csi = cairo_script_interpreter_create (); + cairo_script_interpreter_install_hooks (csi, &hooks); + + cairo_script_interpreter_run (csi, trace); + + cairo_script_interpreter_finish (csi); + + line_no = cairo_script_interpreter_get_line_number (csi); + status = cairo_script_interpreter_destroy (csi); + if (status) { + /* XXXX cairo_status_to_string is just wrong! */ + fprintf (stderr, "Error during replay, line %d: %s\n", + line_no, cairo_status_to_string (status)); + } + } + user_interrupt = 0; + + free (trace_cpy); +} + +static void +usage (const char *argv0) +{ + fprintf (stderr, +"Usage: %s [-l] [-i iterations] [-x exclude-file] [test-names ... | traces ...]\n" +"\n" +"Run the cairo trace analysis suite over the given tests (all by default)\n" +"The command-line arguments are interpreted as follows:\n" +"\n" +" -i iterations; specify the number of iterations per test case\n" +" -l list only; just list selected test case names without executing\n" +" -x exclude; specify a file to read a list of traces to exclude\n" +"\n" +"If test names are given they are used as sub-string matches so a command\n" +"such as \"%s firefox\" can be used to run all firefox traces.\n" +"Alternatively, you can specify a list of filenames to execute.\n", + argv0, argv0); +} + +static cairo_bool_t +read_excludes (cairo_perf_t *perf, + const char *filename) +{ + FILE *file; + char *line = NULL; + size_t line_size = 0; + char *s, *t; + + file = fopen (filename, "r"); + if (file == NULL) + return FALSE; + + while (getline (&line, &line_size, file) != -1) { + /* terminate the line at a comment marker '#' */ + s = strchr (line, '#'); + if (s) + *s = '\0'; + + /* whitespace delimits */ + s = line; + while (*s != '\0' && isspace ((unsigned char)*s)) + s++; + + t = s; + while (*t != '\0' && ! isspace ((unsigned char)*t)) + t++; + + if (s != t) { + int i = perf->num_exclude_names; + perf->exclude_names = xrealloc (perf->exclude_names, + sizeof (char *) * (i+1)); + perf->exclude_names[i] = strndup (s, t-s); + perf->num_exclude_names++; + } + } + free (line); + + fclose (file); + + return TRUE; +} + +static void +parse_options (cairo_perf_t *perf, + int argc, + char *argv[]) +{ + char *end; + int c; + + perf->list_only = FALSE; + perf->names = NULL; + perf->num_names = 0; + perf->exclude_names = NULL; + perf->num_exclude_names = 0; + + while (1) { + c = _cairo_getopt (argc, argv, "i:lx:"); + if (c == -1) + break; + + switch (c) { + case 'i': + perf->exact_iterations = TRUE; + perf->iterations = strtoul (optarg, &end, 10); + if (*end != '\0') { + fprintf (stderr, "Invalid argument for -i (not an integer): %s\n", + optarg); + exit (1); + } + break; + case 'l': + perf->list_only = TRUE; + break; + case 'x': + if (! read_excludes (perf, optarg)) { + fprintf (stderr, "Invalid argument for -x (not readable file): %s\n", + optarg); + exit (1); + } + break; + default: + fprintf (stderr, "Internal error: unhandled option: %c\n", c); + /* fall-through */ + case '?': + usage (argv[0]); + exit (1); + } + } + + if (optind < argc) { + perf->names = &argv[optind]; + perf->num_names = argc - optind; + } +} + +static void +cairo_perf_fini (cairo_perf_t *perf) +{ + cairo_boilerplate_free_targets (perf->targets); + cairo_boilerplate_fini (); + + cairo_debug_reset_static_data (); +#if HAVE_FCFINI + FcFini (); +#endif +} + +static cairo_bool_t +have_trace_filenames (cairo_perf_t *perf) +{ + unsigned int i; + + if (perf->num_names == 0) + return FALSE; + +#if HAVE_UNISTD_H + for (i = 0; i < perf->num_names; i++) + if (access (perf->names[i], R_OK) == 0) + return TRUE; +#endif + + return FALSE; +} + +static cairo_status_t +print (void *closure, const unsigned char *data, unsigned int length) +{ + fwrite (data, length, 1, closure); + return CAIRO_STATUS_SUCCESS; +} + +static void +cairo_perf_trace (cairo_perf_t *perf, + const cairo_boilerplate_target_t *target, + const char *trace) +{ + struct trace args; + cairo_surface_t *real; + + args.target = target; + real = target->create_surface (NULL, + CAIRO_CONTENT_COLOR_ALPHA, + 1, 1, + 1, 1, + CAIRO_BOILERPLATE_MODE_PERF, + &args.closure); + args.surface = + cairo_surface_create_observer (real, + CAIRO_SURFACE_OBSERVER_RECORD_OPERATIONS); + cairo_surface_destroy (real); + if (cairo_surface_status (args.surface)) { + fprintf (stderr, + "Error: Failed to create target surface: %s\n", + target->name); + return; + } + + printf ("Observing '%s'...", trace); + fflush (stdout); + + execute (perf, &args, trace); + + printf ("\n"); + cairo_device_observer_print (cairo_surface_get_device (args.surface), + print, stdout); + fflush (stdout); + + cairo_surface_destroy (args.surface); + + if (target->cleanup) + target->cleanup (args.closure); +} + +static void +warn_no_traces (const char *message, + const char *trace_dir) +{ + fprintf (stderr, +"Error: %s '%s'.\n" +"Have you cloned the cairo-traces repository and uncompressed the traces?\n" +" git clone git://anongit.freedesktop.org/cairo-traces\n" +" cd cairo-traces && make\n" +"Or set the env.var CAIRO_TRACE_DIR to point to your traces?\n", + message, trace_dir); +} + +static int +cairo_perf_trace_dir (cairo_perf_t *perf, + const cairo_boilerplate_target_t *target, + const char *dirname) +{ + DIR *dir; + struct dirent *de; + int num_traces = 0; + cairo_bool_t force; + cairo_bool_t is_explicit; + + dir = opendir (dirname); + if (dir == NULL) + return 0; + + force = FALSE; + if (cairo_perf_can_run (perf, dirname, &is_explicit)) + force = is_explicit; + + while ((de = readdir (dir)) != NULL) { + char *trace; + struct stat st; + + if (de->d_name[0] == '.') + continue; + + xasprintf (&trace, "%s/%s", dirname, de->d_name); + if (stat (trace, &st) != 0) + goto next; + + if (S_ISDIR(st.st_mode)) { + num_traces += cairo_perf_trace_dir (perf, target, trace); + } else { + const char *dot; + + dot = strrchr (de->d_name, '.'); + if (dot == NULL) + goto next; + if (strcmp (dot, ".trace")) + goto next; + + num_traces++; + if (!force && ! cairo_perf_can_run (perf, de->d_name, NULL)) + goto next; + + cairo_perf_trace (perf, target, trace); + } +next: + free (trace); + + } + closedir (dir); + + return num_traces; +} + +int +main (int argc, + char *argv[]) +{ + cairo_perf_t perf; + const char *trace_dir = "cairo-traces:/usr/src/cairo-traces:/usr/share/cairo-traces"; + unsigned int n; + int i; + + parse_options (&perf, argc, argv); + + signal (SIGINT, interrupt); + + if (getenv ("CAIRO_TRACE_DIR") != NULL) + trace_dir = getenv ("CAIRO_TRACE_DIR"); + + perf.targets = cairo_boilerplate_get_targets (&perf.num_targets, NULL); + + /* do we have a list of filenames? */ + perf.exact_names = have_trace_filenames (&perf); + + for (i = 0; i < perf.num_targets; i++) { + const cairo_boilerplate_target_t *target = perf.targets[i]; + + if (! perf.list_only && ! target->is_measurable) + continue; + + perf.target = target; + perf.has_described_backend = FALSE; + + if (perf.exact_names) { + for (n = 0; n < perf.num_names; n++) { + struct stat st; + + if (stat (perf.names[n], &st) == 0) { + if (S_ISDIR (st.st_mode)) { + cairo_perf_trace_dir (&perf, target, perf.names[n]); + } else + cairo_perf_trace (&perf, target, perf.names[n]); + } + } + } else { + int num_traces = 0; + const char *dir; + + dir = trace_dir; + do { + char buf[1024]; + const char *end = strchr (dir, ':'); + if (end != NULL) { + memcpy (buf, dir, end-dir); + buf[end-dir] = '\0'; + end++; + + dir = buf; + } + + num_traces += cairo_perf_trace_dir (&perf, target, dir); + dir = end; + } while (dir != NULL); + + if (num_traces == 0) { + warn_no_traces ("Found no traces in", trace_dir); + return 1; + } + } + + if (perf.list_only) + break; + } + + cairo_perf_fini (&perf); + + return 0; +} diff --git a/local/recipes/libs/cairo/source/perf/cairo-perf-chart.c b/local/recipes/libs/cairo/source/perf/cairo-perf-chart.c new file mode 100644 index 0000000000..9ccb9b42ec --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-perf-chart.c @@ -0,0 +1,1113 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of the + * copyright holders not be used in advertising or publicity + * pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied + * warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Authors: Carl Worth + * Chris Wilson + */ + +#include "cairo-perf.h" + +#include +#include +#include +#include +#include +#include +#include + +struct chart { + cairo_perf_report_t *reports; + const char **names; + + cairo_t *cr; + int width, height; + int num_tests, num_reports; + double min_value, max_value; + double *average; + + cairo_bool_t use_html; + cairo_bool_t relative; +}; +struct color { + double red, green, blue; +}; + +#define FONT_SIZE 12 +#define PAD (4) + +static double +to_factor (double x) +{ +#if 1 + if (x > 1.) + return (x-1) * 100.; + else + return (1. - 1./x) * 100.; +#else + return log (x); +#endif +} + +static int +_double_cmp (const void *_a, + const void *_b) +{ + const double *a = _a; + const double *b = _b; + + if (*a > *b) + return 1; + if (*a < *b) + return -1; + return 0; +} + +static void +trim_outliers (double *values, + int num_values, + double *min, + double *max) +{ + double q1, q3, iqr; + double outlier_min, outlier_max; + int i; + + /* First, identify any outliers, using the definition of "mild + * outliers" from: + * + * http://en.wikipedia.org/wiki/Outliers + * + * Which is that outliers are any values less than Q1 - 1.5 * IQR + * or greater than Q3 + 1.5 * IQR where Q1 and Q3 are the first + * and third quartiles and IQR is the inter-quartile range (Q3 - + * Q1). + */ + qsort (values, num_values, + sizeof (double), _double_cmp); + + q1 = values[1*num_values / 6]; + q3 = values[5*num_values / 6]; + + iqr = q3 - q1; + + outlier_min = q1 - 3 * iqr; + outlier_max = q3 + 3 * iqr; + + i = 0; + while (i < num_values && values[i] < outlier_min) + i++; + if (i == num_values) + return; + + *min = values[i]; + + while (i < num_values && values[i] <= outlier_max) + i++; + + *max = values[i-1]; +} + +static void +find_ranges (struct chart *chart) +{ + test_report_t **tests, *min_test; + double *values; + int num_values, size_values; + double min = 0, max = 0; + double test_time; + int seen_non_null; + int num_tests = 0; + double slow_sum = 0, fast_sum = 0, sum = 0; + int slow_count = 0, fast_count = 0; + int *count; + int i; + + num_values = 0; + size_values = 64; + values = xmalloc (size_values * sizeof (double)); + + chart->average = xmalloc(chart->num_reports * sizeof(double)); + count = xmalloc(chart->num_reports * sizeof(int)); + for (i = 0; i < chart->num_reports; i++) { + chart->average[i] = 0; + count[i] = 0; + } + + tests = xmalloc (chart->num_reports * sizeof (test_report_t *)); + for (i = 0; i < chart->num_reports; i++) + tests[i] = chart->reports[i].tests; + + while (1) { + /* We expect iterations values of 0 when multiple raw reports + * for the same test have been condensed into the stats of the + * first. So we just skip these later reports that have no + * stats. */ + seen_non_null = 0; + for (i = 0; i < chart->num_reports; i++) { + while (tests[i]->name && tests[i]->stats.iterations == 0) + tests[i]++; + if (tests[i]->name) + seen_non_null++; + } + if (! seen_non_null) + break; + + num_tests++; + + /* Find the minimum of all current tests, (we have to do this + * in case some reports don't have a particular test). */ + for (i = 0; i < chart->num_reports; i++) { + if (tests[i]->name) { + min_test = tests[i]; + break; + } + } + for (++i; i < chart->num_reports; i++) { + if (tests[i]->name && test_report_cmp_name (tests[i], min_test) < 0) + min_test = tests[i]; + } + + test_time = 0; + for (i = 0; i < chart->num_reports; i++) { + double report_time = HUGE_VAL; + + while (tests[i]->name && + test_report_cmp_name (tests[i], min_test) == 0) + { + double time = tests[i]->stats.min_ticks; + if (time < report_time) { + time /= tests[i]->stats.ticks_per_ms; + if (time < report_time) + report_time = time; + } + tests[i]++; + } + + if (report_time != HUGE_VAL) { + if (test_time == 0) + test_time = report_time; + + chart->average[i] += report_time / test_time; + count[i]++; + + if (chart->relative) { + if (test_time != report_time) { + double v = to_factor (test_time / report_time); + if (num_values == size_values) { + size_values *= 2; + values = xrealloc (values, + size_values * sizeof (double)); + } + values[num_values++] = v; + if (v < min) + min = v; + if (v > max) + max = v; + if (v > 0) + fast_sum += v/100, fast_count++; + else + slow_sum += v/100, slow_count++; + sum += v/100; + printf ("%s %d: %f\n", min_test->name, num_values, v); + } + } else { + if (report_time < min) + min = report_time; + if (report_time > max) + max = report_time; + } + } + } + } + + for (i = 0; i < chart->num_reports; i++) { + if (count[i]) + chart->average[i] = count[i] / chart->average[i]; + else + chart->average[i] = 1.; + } + + if (chart->relative) + trim_outliers (values, num_values, &min, &max); + chart->min_value = min; + chart->max_value = max; + chart->num_tests = num_tests + !!chart->relative; + + free (values); + free (tests); + free (count); + + printf ("%d: slow[%d] average: %f, fast[%d] average: %f, %f\n", + num_values, slow_count, slow_sum / slow_count, fast_count, fast_sum / fast_count, sum / num_values); +} + +#define SET_COLOR(C, R, G, B) (C)->red = (R), (C)->green = (G), (C)->blue = (B) +static void +hsv_to_rgb (double h, + double s, + double v, + struct color *color) +{ + double m, n, f; + int i; + + while (h < 0) + h += 6.; + while (h > 6.) + h -= 6.; + + if (s < 0.) + s = 0.; + if (s > 1.) + s = 1.; + + if (v < 0.) + v = 0.; + if (v > 1.) + v = 1.; + + i = floor (h); + f = h - i; + if ((i & 1) == 0) + f = 1 - f; + + m = v * (1 - s); + n = v * (1 - s * f); + switch(i){ + default: + case 6: + case 0: SET_COLOR (color, v, n, m); break; + case 1: SET_COLOR (color, n, v, m); break; + case 2: SET_COLOR (color, m, v, n); break; + case 3: SET_COLOR (color, m, n, v); break; + case 4: SET_COLOR (color, n, m, v); break; + case 5: SET_COLOR (color, v, m, n); break; + } +} + +static void set_report_color (struct chart *chart, int report) +{ + struct color color; + + hsv_to_rgb (6. / chart->num_reports * report, .7, .7, &color); + cairo_set_source_rgb (chart->cr, color.red, color.green, color.blue); +} + +static void set_report_gradient (struct chart *chart, int report, + double x, double y, double w, double h) +{ + struct color color; + cairo_pattern_t *p; + + hsv_to_rgb (6. / chart->num_reports * report, .7, .7, &color); + + p = cairo_pattern_create_linear (x, 0, x+w, 0); + cairo_pattern_add_color_stop_rgba (p, 0.0, + color.red, color.green, color.blue, + .50); + cairo_pattern_add_color_stop_rgba (p, 0.5, + color.red, color.green, color.blue, + .50); + cairo_pattern_add_color_stop_rgba (p, 1.0, + color.red, color.green, color.blue, + 1.0); + cairo_set_source (chart->cr, p); + cairo_pattern_destroy (p); +} + +static void +test_background (struct chart *c, + int test) +{ + double dx, x; + + dx = c->width / (double) c->num_tests; + x = dx * test; + + if (test & 1) + cairo_set_source_rgba (c->cr, .2, .2, .2, .2); + else + cairo_set_source_rgba (c->cr, .8, .8, .8, .2); + + cairo_rectangle (c->cr, floor (x), 0, + floor (dx + x) - floor (x), c->height); + cairo_fill (c->cr); +} + +static void +add_chart (struct chart *c, + int test, + int report, + double value) +{ + double dx, dy, x; + + if (fabs (value) < 0.1) + return; + + if (c->relative) { + cairo_text_extents_t extents; + char buf[80]; + double y; + + dy = (c->height/2. - PAD) / MAX (-c->min_value, c->max_value); + /* the first report is always skipped, as it is used as the baseline */ + dx = c->width / (double) (c->num_tests * c->num_reports); + x = dx * (c->num_reports * test + report - .5); + + cairo_rectangle (c->cr, + floor (x), c->height / 2., + floor (x + dx) - floor (x), + ceil (-dy*value - c->height/2.) + c->height/2.); + if (dx < 5) { + set_report_color (c, report); + cairo_fill (c->cr); + } else { + set_report_gradient (c, report, + floor (x), c->height / 2., + floor (x + dx) - floor (x), + ceil (-dy*value - c->height/2.) + c->height/2.); + + cairo_fill_preserve (c->cr); + cairo_save (c->cr); + cairo_clip_preserve (c->cr); + set_report_color (c, report); + cairo_stroke (c->cr); + cairo_restore (c->cr); + } + + /* Skip the label if the difference between the two is less than 0.1% */ + if (fabs (value) < 0.1) + return; + + cairo_save (c->cr); + cairo_set_font_size (c->cr, dx - 2); + + if (value < 0) { + sprintf (buf, "%.1f", -value/100 + 1); + } else { + sprintf (buf, "%.1f", value/100 + 1); + } + cairo_text_extents (c->cr, buf, &extents); + + /* will it be clipped? */ + y = -dy * value; + if (y < -c->height/2) { + y = -c->height/2; + } else if (y > c->height/2) { + y = c->height/2; + } + + if (y < 0) { + if (y > -extents.width - 6) + y -= extents.width + 6; + } else { + if (y < extents.width + 6) + y += extents.width + 6; + } + + cairo_translate (c->cr, + floor (x) + (floor (x + dx) - floor (x))/2, + floor (y) + c->height/2.); + cairo_rotate (c->cr, -M_PI/2); + if (y < 0) { + cairo_move_to (c->cr, -extents.x_bearing -extents.width - 4, -extents.y_bearing/2); + } else { + cairo_move_to (c->cr, 2, -extents.y_bearing/2); + } + + cairo_set_source_rgb (c->cr, .95, .95, .95); + cairo_show_text (c->cr, buf); + cairo_restore (c->cr); + } else { + dy = (c->height - PAD) / c->max_value; + dx = c->width / (double) (c->num_tests * (c->num_reports+1)); + x = dx * ((c->num_reports+1) * test + report + .5); + + cairo_rectangle (c->cr, + floor (x), c->height, + floor (x + dx) - floor (x), + floor (c->height - dy*value) - c->height); + if (dx < 5) { + set_report_color (c, report); + cairo_fill (c->cr); + } else { + set_report_gradient (c, report, + floor (x), c->height, + floor (x + dx) - floor (x), + floor (c->height - dy*value) - c->height); + cairo_fill_preserve (c->cr); + cairo_save (c->cr); + cairo_clip_preserve (c->cr); + set_report_color (c, report); + cairo_stroke (c->cr); + cairo_restore (c->cr); + } + } +} + +static void +add_average (struct chart *c, + int test, + int report, + double value) +{ + double dx, dy, x; + cairo_text_extents_t extents; + char buf[80]; + double y; + + if (fabs (value) < 0.1) + return; + + dy = (c->height/2. - PAD) / MAX (-c->min_value, c->max_value); + /* the first report is always skipped, as it is used as the baseline */ + dx = c->width / (double) (c->num_tests * c->num_reports); + x = dx * (c->num_reports * test + report - .5); + + cairo_rectangle (c->cr, + floor (x), c->height / 2., + floor (x + dx) - floor (x), + ceil (-dy*value - c->height/2.) + c->height/2.); + if (dx < 5) { + set_report_color (c, report); + cairo_fill (c->cr); + } else { + set_report_gradient (c, report, + floor (x), c->height / 2., + floor (x + dx) - floor (x), + ceil (-dy*value - c->height/2.) + c->height/2.); + + cairo_fill_preserve (c->cr); + cairo_save (c->cr); + cairo_clip_preserve (c->cr); + set_report_color (c, report); + cairo_stroke (c->cr); + cairo_restore (c->cr); + } + + /* Skip the label if the difference between the two is less than 0.1% */ + if (fabs (value) < 0.1) + return; + + cairo_save (c->cr); + cairo_set_font_size (c->cr, dx - 2); + + if (value < 0) { + sprintf (buf, "%.1f", -value/100 + 1); + } else { + sprintf (buf, "%.1f", value/100 + 1); + } + cairo_text_extents (c->cr, buf, &extents); + + /* will it be clipped? */ + y = -dy * value; + if (y < -c->height/2) { + y = -c->height/2; + } else if (y > c->height/2) { + y = c->height/2; + } + + if (y < 0) { + if (y > -extents.width - 6) + y -= extents.width + 6; + } else { + if (y < extents.width + 6) + y += extents.width + 6; + } + + cairo_translate (c->cr, + floor (x) + (floor (x + dx) - floor (x))/2, + floor (y) + c->height/2.); + cairo_rotate (c->cr, -M_PI/2); + if (y < 0) { + cairo_move_to (c->cr, -extents.x_bearing -extents.width - 4, -extents.y_bearing/2); + } else { + cairo_move_to (c->cr, 2, -extents.y_bearing/2); + } + + cairo_set_source_rgb (c->cr, .95, .95, .95); + cairo_show_text (c->cr, buf); + cairo_restore (c->cr); +} + +static void +add_label (struct chart *c, + int test, + const char *label) +{ + cairo_text_extents_t extents; + double dx, x; + + cairo_save (c->cr); + dx = c->width / (double) c->num_tests; + if (dx / 2 - PAD < 4) + return; + cairo_set_font_size (c->cr, dx / 2 - PAD); + cairo_text_extents (c->cr, label, &extents); + + cairo_set_source_rgb (c->cr, .5, .5, .5); + + x = (test + .5) * dx; + cairo_save (c->cr); + cairo_translate (c->cr, x, c->height - PAD / 2); + cairo_rotate (c->cr, -M_PI/2); + cairo_move_to (c->cr, 0, -extents.y_bearing/2); + cairo_show_text (c->cr, label); + cairo_restore (c->cr); + + cairo_save (c->cr); + cairo_translate (c->cr, x, PAD / 2); + cairo_rotate (c->cr, -M_PI/2); + cairo_move_to (c->cr, -extents.width, -extents.y_bearing/2); + cairo_show_text (c->cr, label); + cairo_restore (c->cr); + + cairo_restore (c->cr); +} + +static void +add_base_line (struct chart *c) +{ + double y; + + cairo_save (c->cr); + cairo_set_line_width (c->cr, 2.); + if (c->relative) { + y = c->height / 2.; + } else { + y = c->height; + } + cairo_move_to (c->cr, 0, y); + cairo_line_to (c->cr, c->width, y); + cairo_set_source_rgb (c->cr, 1, 1, 1); + cairo_stroke (c->cr); + cairo_restore (c->cr); +} + +static void +add_absolute_lines (struct chart *c) +{ + const double dashes[] = { 2, 4 }; + const double vlog_steps[] = { 10, 5, 4, 3, 2, 1, .5, .4, .3, .2, .1}; + double v, y, dy; + unsigned int i; + char buf[80]; + cairo_text_extents_t extents; + + v = c->max_value / 2.; + + for (i = 0; i < sizeof (vlog_steps) / sizeof (vlog_steps[0]); i++) { + double vlog = log (v) / log (vlog_steps[i]); + if (vlog > 1) { + v = pow (vlog_steps[i], floor (vlog)); + goto done; + } + } + return; +done: + + dy = (c->height - PAD) / c->max_value; + + cairo_save (c->cr); + cairo_set_line_width (c->cr, 1.); + cairo_set_dash (c->cr, dashes, sizeof (dashes) / sizeof (dashes[0]), 0); + + i = 0; + do { + y = c->height - ++i * v * dy; + if (y < PAD) + break; + + cairo_set_font_size (c->cr, 8); + + sprintf (buf, "%.0fs", i*v/1000); + cairo_text_extents (c->cr, buf, &extents); + + cairo_set_source_rgba (c->cr, .75, 0, 0, .95); + cairo_move_to (c->cr, 1-extents.x_bearing, floor (y) - (extents.height/2 + extents.y_bearing) + .5); + cairo_show_text (c->cr, buf); + + cairo_move_to (c->cr, c->width-extents.width-1, floor (y) - (extents.height/2 + extents.y_bearing) + .5); + cairo_show_text (c->cr, buf); + + cairo_set_source_rgba (c->cr, .75, 0, 0, .5); + cairo_move_to (c->cr, + ceil (extents.width + extents.x_bearing + 2), + floor (y) + .5); + cairo_line_to (c->cr, + floor (c->width - (extents.width + extents.x_bearing + 2)), + floor (y) + .5); + cairo_stroke (c->cr); + } while (1); + + cairo_restore (c->cr); +} + +static void +add_relative_lines (struct chart *c) +{ + const double dashes[] = { 2, 4 }; + const double v_steps[] = { 10, 5, 1, .5, .1, .05, .01}; + const int precision_steps[] = { 0, 0, 0, 1, 1, 2, 2}; + int precision; + double v, y, dy, mid; + unsigned int i; + char buf[80]; + cairo_text_extents_t extents; + + v = MAX (-c->min_value, c->max_value) / 200; + + for (i = 0; i < sizeof (v_steps) / sizeof (v_steps[0]); i++) { + if (v > v_steps[i]) { + v = v_steps[i]; + precision = precision_steps[i]; + goto done; + } + } + return; +done: + + mid = c->height/2.; + dy = (mid - PAD) / MAX (-c->min_value, c->max_value); + + cairo_save (c->cr); + cairo_set_line_width (c->cr, 1.); + cairo_set_dash (c->cr, dashes, sizeof (dashes) / sizeof (dashes[0]), 0); + cairo_set_font_size (c->cr, 8); + + i = 0; + do { + y = ++i * v * dy * 100; + if (y > mid) + break; + + sprintf (buf, "%.*fx", precision, i*v + 1); + cairo_text_extents (c->cr, buf, &extents); + + cairo_set_source_rgba (c->cr, .75, 0, 0, .95); + cairo_move_to (c->cr, 1-extents.x_bearing, floor (mid + y) - (extents.height/2 + extents.y_bearing) + .5); + cairo_show_text (c->cr, buf); + + cairo_move_to (c->cr, c->width-extents.width-1, floor (mid + y) - (extents.height/2 + extents.y_bearing) + .5); + cairo_show_text (c->cr, buf); + + cairo_set_source_rgba (c->cr, 0, .75, 0, .95); + cairo_move_to (c->cr, 1-extents.x_bearing, ceil (mid - y) - (extents.height/2 + extents.y_bearing) + .5); + cairo_show_text (c->cr, buf); + + cairo_move_to (c->cr, c->width-extents.width-1, ceil (mid - y) - (extents.height/2 + extents.y_bearing) + .5); + cairo_show_text (c->cr, buf); + + /* trim the dashes to no obscure the labels */ + cairo_set_source_rgba (c->cr, .75, 0, 0, .5); + cairo_move_to (c->cr, + ceil (extents.width + extents.x_bearing + 2), + floor (mid + y) + .5); + cairo_line_to (c->cr, + floor (c->width - (extents.width + 2)), + floor (mid + y) + .5); + cairo_stroke (c->cr); + + cairo_set_source_rgba (c->cr, 0, .75, 0, .5); + cairo_move_to (c->cr, + ceil (extents.width + extents.x_bearing + 2), + ceil (mid - y) + .5); + cairo_line_to (c->cr, + floor (c->width - (extents.width + 2)), + ceil (mid - y) + .5); + cairo_stroke (c->cr); + + } while (1); + + cairo_restore (c->cr); +} + +static void +add_slower_faster_guide (struct chart *c) +{ + cairo_text_extents_t extents; + + cairo_save (c->cr); + + cairo_set_font_size (c->cr, FONT_SIZE); + + cairo_text_extents (c->cr, "FASTER", &extents); + cairo_set_source_rgba (c->cr, 0, .75, 0, .5); + cairo_move_to (c->cr, + c->width/4. - extents.width/2. + extents.x_bearing, + 1 - extents.y_bearing); + cairo_show_text (c->cr, "FASTER"); + cairo_move_to (c->cr, + 3*c->width/4. - extents.width/2. + extents.x_bearing, + 1 - extents.y_bearing); + cairo_show_text (c->cr, "FASTER"); + + cairo_text_extents (c->cr, "SLOWER", &extents); + cairo_set_source_rgba (c->cr, .75, 0, 0, .5); + cairo_move_to (c->cr, + c->width/4. - extents.width/2. + extents.x_bearing, + c->height - 1); + cairo_show_text (c->cr, "SLOWER"); + cairo_move_to (c->cr, + 3*c->width/4. - extents.width/2. + extents.x_bearing, + c->height - 1); + cairo_show_text (c->cr, "SLOWER"); + + cairo_restore (c->cr); +} + +static void +cairo_perf_reports_compare (struct chart *chart, + cairo_bool_t print) +{ + test_report_t **tests, *min_test; + double test_time, best_time; + int num_test = 0; + int seen_non_null; + int i; + + tests = xmalloc (chart->num_reports * sizeof (test_report_t *)); + for (i = 0; i < chart->num_reports; i++) + tests[i] = chart->reports[i].tests; + + if (print) { + if (chart->use_html) { + printf ("\n"); + printf (""); + for (i = 0; i < chart->num_reports; i++) { + printf ("", chart->names[i] ? chart->names[i] : ""); + } + printf ("\n"); + } + } + + while (1) { + /* We expect iterations values of 0 when multiple raw reports + * for the same test have been condensed into the stats of the + * first. So we just skip these later reports that have no + * stats. */ + seen_non_null = 0; + for (i = 0; i < chart->num_reports; i++) { + while (tests[i]->name && tests[i]->stats.iterations == 0) + tests[i]++; + if (tests[i]->name) + seen_non_null++; + } + if (! seen_non_null) + break; + + /* Find the minimum of all current tests, (we have to do this + * in case some reports don't have a particular test). */ + for (i = 0; i < chart->num_reports; i++) { + if (tests[i]->name) { + min_test = tests[i]; + break; + } + } + for (++i; i < chart->num_reports; i++) { + if (tests[i]->name && test_report_cmp_name (tests[i], min_test) < 0) + min_test = tests[i]; + } + + add_label (chart, num_test, min_test->name); + if (print) { + if (chart->use_html) { + printf ("", min_test->name); + } else { + if (min_test->size) { + printf ("%16s, size %4d:\n", + min_test->name, + min_test->size); + } else { + printf ("%26s:", + min_test->name); + } + } + } + + test_time = 0; + best_time = HUGE_VAL; + for (i = 0; i < chart->num_reports; i++) { + test_report_t *initial = tests[i]; + double report_time = HUGE_VAL; + + while (tests[i]->name && + test_report_cmp_name (tests[i], min_test) == 0) + { + double time = tests[i]->stats.min_ticks; + if (time < report_time) { + time /= tests[i]->stats.ticks_per_ms; + if (time < report_time) + report_time = time; + } + tests[i]++; + } + + if (test_time == 0 && report_time != HUGE_VAL) + test_time = report_time; + if (report_time < best_time) + best_time = report_time; + + tests[i] = initial; + } + + for (i = 0; i < chart->num_reports; i++) { + double report_time = HUGE_VAL; + + while (tests[i]->name && + test_report_cmp_name (tests[i], min_test) == 0) + { + double time = tests[i]->stats.min_ticks; + if (time > 0) { + time /= tests[i]->stats.ticks_per_ms; + if (time < report_time) + report_time = time; + } + tests[i]++; + } + + if (print) { + if (chart->use_html) { + if (report_time < HUGE_VAL) { + if (report_time / best_time < 1.01) { + printf ("", report_time/1000); + } else { + printf ("", report_time/1000); + } + } else { + printf (""); + } + } else { + if (report_time < HUGE_VAL) + printf (" %6.1f", report_time/1000); + else + printf (" ---"); + } + } + + if (report_time < HUGE_VAL) { + if (chart->relative) { + add_chart (chart, num_test, i, + to_factor (test_time / report_time)); + } else { + add_chart (chart, num_test, i, report_time); + } + } + } + + if (print) { + if (chart->use_html) { + printf ("\n"); + } else { + printf ("\n"); + } + } + + num_test++; + } + if (chart->relative) { + add_label (chart, num_test, "(geometric mean)"); + for (i = 0; i < chart->num_reports; i++) + add_average (chart, num_test, i, to_factor (chart->average[i])); + } + free (tests); + + if (print) { + if (chart->use_html) + printf ("
    %s
    %s%.1f%.1f
    \n"); + + printf ("\n"); + for (i = 0; i < chart->num_reports; i++) { + if (chart->names[i]) { + printf ("[%s] %s\n", + chart->names[i], chart->reports[i].configuration); + } else { + printf ("[%d] %s\n", + i, chart->reports[i].configuration); + } + } + } +} + +static void +add_legend (struct chart *chart) +{ + cairo_text_extents_t extents; + const char *str; + int i, x, y; + + cairo_set_font_size (chart->cr, FONT_SIZE); + + x = PAD; + y = chart->height + PAD; + for (i = chart->relative; i < chart->num_reports; i++) { + str = chart->names[i] ? + chart->names[i] : chart->reports[i].configuration; + + set_report_color (chart, i); + + cairo_rectangle (chart->cr, x, y + 6, 8, 8); + cairo_fill (chart->cr); + + cairo_set_source_rgb (chart->cr, 1, 1, 1); + cairo_move_to (chart->cr, x + 10, y + FONT_SIZE + PAD / 2.); + cairo_text_extents (chart->cr, str, &extents); + cairo_show_text (chart->cr, str); + + x += 10 + 2 * PAD + ceil (extents.width); + } + + if (chart->relative) { + char buf[80]; + + str = chart->names[0] ? + chart->names[0] : chart->reports[0].configuration; + + sprintf (buf, "(relative to %s)", str); + cairo_text_extents (chart->cr, buf, &extents); + + cairo_set_source_rgb (chart->cr, 1, 1, 1); + cairo_move_to (chart->cr, + chart->width - 1 - extents.width, + y + FONT_SIZE + PAD / 2.); + cairo_show_text (chart->cr, buf); + } +} + +static void +usage (void) +{ + printf("Usage:\n"); + printf(" cairo-perf-chart [OPTION...] ...\n"); + printf("\n"); + printf("Help Options:\n"); + printf(" --help, --?\tShow help options\n"); + printf("\n"); + printf("Application Options:\n"); + printf(" --html\tOutput an HTML table comparing the results\n"); + printf(" --height=\tSet the height of the output graph"\ + " (default 480)\n"); + printf(" --width=\tSet the width of the output graph"\ + " (default 640)\n"); + printf(" --name\tSet the name of graph series."\ + " This only sets the name for the\n\t\tfirst result file."\ + " The graph series is usually set using the\n\t\tfile name for"\ + " the results file.\n"); + printf("\n"); + printf("Example:\n"); + printf(" cairo-perf-chart --width=1024 --height=768 run1 run2 run3\n"); + return; +} + +int +main (int argc, + const char *argv[]) +{ + cairo_surface_t *surface; + struct chart chart; + test_report_t *t; + int i; + + chart.use_html = 0; + chart.width = 640; + chart.height = 480; + + chart.reports = xcalloc (argc-1, sizeof (cairo_perf_report_t)); + chart.names = xcalloc (argc-1, sizeof (cairo_perf_report_t)); + + chart.num_reports = 0; + for (i = 1; i < argc; i++) { + if (strcmp (argv[i], "--html") == 0) { + chart.use_html = 1; + } else if (strncmp (argv[i], "--width=", 8) == 0) { + chart.width = atoi (argv[i] + 8); + } else if (strncmp (argv[i], "--height=", 9) == 0) { + chart.height = atoi (argv[i] + 9); + } else if (strcmp (argv[i], "--name") == 0) { + if (i + 1 < argc) + chart.names[chart.num_reports] = argv[++i]; + } else if (strncmp (argv[i], "--name=", 7) == 0) { + chart.names[chart.num_reports] = argv[i] + 7; + } else if ((strcmp (argv[i], "--help") == 0) || + (strcmp (argv[i], "--?") == 0)) { + usage(); + return 0; + } else { + cairo_perf_report_load (&chart.reports[chart.num_reports++], + argv[i], i, + test_report_cmp_name); + } + } + + for (chart.relative = 0; chart.relative <= 1; chart.relative++) { + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + chart.width, + chart.height + (FONT_SIZE + PAD) + 2*PAD); + chart.cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (chart.cr, 0, 0, 0); + cairo_paint (chart.cr); + + find_ranges (&chart); + + for (i = 0; i < chart.num_tests; i++) + test_background (&chart, i); + if (chart.relative) { + add_relative_lines (&chart); + add_slower_faster_guide (&chart); + } else + add_absolute_lines (&chart); + + cairo_save (chart.cr); + cairo_rectangle (chart.cr, 0, 0, chart.width, chart.height); + cairo_clip (chart.cr); + cairo_perf_reports_compare (&chart, !chart.relative); + cairo_restore (chart.cr); + + add_base_line (&chart); + add_legend (&chart); + + cairo_surface_write_to_png (cairo_get_target (chart.cr), + chart.relative ? "relative.png" : "absolute.png"); + cairo_destroy (chart.cr); + } + + /* Pointless memory cleanup, (would be a great place for talloc) */ + for (i = 0; i < chart.num_reports; i++) { + for (t = chart.reports[i].tests; t->name; t++) { + free (t->samples); + free (t->backend); + free (t->name); + } + free (chart.reports[i].tests); + free (chart.reports[i].configuration); + } + free (chart.names); + free (chart.reports); + + return 0; +} diff --git a/local/recipes/libs/cairo/source/perf/cairo-perf-compare-backends.c b/local/recipes/libs/cairo/source/perf/cairo-perf-compare-backends.c new file mode 100644 index 0000000000..ff7359e1a0 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-perf-compare-backends.c @@ -0,0 +1,398 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of the + * copyright holders not be used in advertising or publicity + * pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied + * warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Authors: Carl Worth + * Chris Wilson + */ + +#include "cairo-perf.h" + +#include +#include +#include +#include +#include +#include +#include + +typedef struct _cairo_perf_report_options { + double min_change; + int use_utf; + int print_change_bars; +} cairo_perf_report_options_t; + +typedef struct _cairo_perf_diff_files_args { + const char **filenames; + int num_filenames; + cairo_perf_report_options_t options; +} cairo_perf_diff_files_args_t; + +static int +test_diff_cmp (const void *a, + const void *b) +{ + const test_diff_t *a_diff = a; + const test_diff_t *b_diff = b; + + /* Reverse sort by magnitude of change so larger changes come + * first */ + if (a_diff->change > b_diff->change) + return -1; + + if (a_diff->change < b_diff->change) + return 1; + + return 0; +} + +#define CHANGE_BAR_WIDTH 70 +static void +print_change_bar (double change, + double max_change, + int use_utf) +{ + int units_per_cell = ceil (max_change / CHANGE_BAR_WIDTH); + static char const *ascii_boxes[8] = { + "****","***" ,"***", "**", + "**", "*", "*", "" + }; + static char const *utf_boxes[8] = { + "â–ˆ", "â–‰", "â–Š", "â–‹", + "â–Œ", "â–", "â–Ž", "â–" + }; + char const **boxes = use_utf ? utf_boxes : ascii_boxes; + + /* For a 1.0x speedup we want a zero-size bar to show "no + * change". */ + change -= 1.0; + + while (change > units_per_cell) { + printf ("%s", boxes[0]); + change -= units_per_cell; + } + + change /= units_per_cell; + + if (change > 7.5/8.0) + printf ("%s", boxes[0]); + else if (change > 6.5/8.0) + printf ("%s", boxes[1]); + else if (change > 5.5/8.0) + printf ("%s", boxes[2]); + else if (change > 4.5/8.0) + printf ("%s", boxes[3]); + else if (change > 3.5/8.0) + printf ("%s", boxes[4]); + else if (change > 2.5/8.0) + printf ("%s", boxes[5]); + else if (change > 1.5/8.0) + printf ("%s", boxes[6]); + else if (change > 0.5/8.0) + printf ("%s", boxes[7]); +} + +static void +test_diff_print (test_diff_t *diff, + double max_change, + cairo_perf_report_options_t *options) +{ + int i; + double test_time; + double change; + + if (diff->tests[0]->size != 0) { + printf ("(%s, size: %d)\n", + diff->tests[0]->name, + diff->tests[0]->size); + } else { + printf ("(%s)\n", diff->tests[0]->name); + } + + for (i = 0; i < diff->num_tests; i++) { + test_time = diff->tests[i]->stats.min_ticks; + test_time /= diff->tests[i]->stats.ticks_per_ms; + change = diff->max / test_time; + printf ("%8s-%s-%s\t%6.2f: %5.2fx ", + diff->tests[i]->backend, + diff->tests[i]->content, + diff->tests[i]->configuration, + diff->tests[i]->stats.min_ticks / diff->tests[i]->stats.ticks_per_ms, + change); + + if (options->print_change_bars) + print_change_bar (change, max_change, options->use_utf); + printf ("\n"); + } + + printf("\n"); +} + +static void +cairo_perf_reports_compare (cairo_perf_report_t *reports, + int num_reports, + cairo_perf_report_options_t *options) +{ + int i; + test_report_t **tests, *min_test; + test_diff_t *diff, *diffs; + int num_diffs, max_diffs; + double max_change; + double test_time; + int seen_non_null; + + tests = xmalloc (num_reports * sizeof (test_report_t *)); + + max_diffs = reports[0].tests_count; + for (i = 0; i < num_reports; i++) { + tests[i] = reports[i].tests; + if (reports[i].tests_count > max_diffs) + max_diffs = reports[i].tests_count; + } + + diff = diffs = xmalloc (max_diffs * sizeof (test_diff_t)); + + num_diffs = 0; + while (1) { + int num_tests; + + /* We expect iterations values of 0 when multiple raw reports + * for the same test have been condensed into the stats of the + * first. So we just skip these later reports that have no + * stats. */ + seen_non_null = 0; + for (i = 0; i < num_reports; i++) { + while (tests[i]->name && tests[i]->stats.iterations == 0) + tests[i]++; + if (tests[i]->name) + seen_non_null++; + } + if (! seen_non_null) + break; + + /* Find the minimum of all current tests, (we have to do this + * in case some reports don't have a particular test). */ + for (i = 0; i < num_reports; i++) { + if (tests[i]->name) { + min_test = tests[i]; + break; + } + } + for (++i; i < num_reports; i++) { + if (tests[i]->name && test_report_cmp_name (tests[i], min_test) < 0) + min_test = tests[i]; + } + + num_tests = 0; + for (i = 0; i < num_reports; i++) { + test_report_t *test; + int n = 0; + + test = tests[i]; + while (test[n].name && + test_report_cmp_name (&test[n], min_test) == 0) + { + n++; + } + + num_tests += n; + } + + /* For each report that has the current test, record it into + * the diff structure. */ + diff->num_tests = 0; + diff->tests = xmalloc (num_tests * sizeof (test_diff_t)); + for (i = 0; i < num_reports; i++) { + while (tests[i]->name && + test_report_cmp_name (tests[i], min_test) == 0) + { + test_time = tests[i]->stats.min_ticks; + if (test_time > 0) { + test_time /= tests[i]->stats.ticks_per_ms; + if (diff->num_tests == 0) { + diff->min = test_time; + diff->max = test_time; + } else { + if (test_time < diff->min) + diff->min = test_time; + if (test_time > diff->max) + diff->max = test_time; + } + diff->tests[diff->num_tests++] = tests[i]; + } + tests[i]++; + } + } + diff->change = diff->max / diff->min; + + diff++; + num_diffs++; + } + if (num_diffs == 0) + goto DONE; + + qsort (diffs, num_diffs, sizeof (test_diff_t), test_diff_cmp); + + max_change = 1.0; + for (i = 0; i < num_diffs; i++) { + if (fabs (diffs[i].change) > max_change) + max_change = fabs (diffs[i].change); + } + + for (i = 0; i < num_diffs; i++) { + diff = &diffs[i]; + + /* Discard as uninteresting a change which is less than the + * minimum change required, (default may be overridden on + * command-line). */ + if (fabs (diff->change) - 1.0 < options->min_change) + continue; + + test_diff_print (diff, max_change, options); + } + + for (i = 0; i < num_diffs; i++) + free (diffs[i].tests); + DONE: + free (diffs); + free (tests); +} + +static void +usage (const char *argv0) +{ + char const *basename = strrchr(argv0, '/'); + basename = basename ? basename+1 : argv0; + fprintf (stderr, + "Usage: %s [options] file [...]\n\n", + basename); + fprintf (stderr, + "Computes significant performance differences for cairo performance reports.\n" + "Each file should be the output of the cairo-perf program (or \"make perf\").\n" + "The following options are available:\n" + "\n" + "--no-utf Use ascii stars instead of utf-8 change bars.\n" + " Four stars are printed per factor of speedup.\n" + "\n" + "--no-bars Don't display change bars at all.\n\n" + "\n" + "--use-ms Use milliseconds to calculate differences.\n" + " (instead of ticks which are hardware dependent)\n" + "\n" + "--min-change threshold[%%]\n" + " Suppress all changes below the given threshold.\n" + " The default threshold of 0.05 or 5%% ignores any\n" + " speedup or slowdown of 1.05 or less. A threshold\n" + " of 0 will cause all output to be reported.\n" + ); + exit(1); +} + +static void +parse_args (int argc, + char const **argv, + cairo_perf_diff_files_args_t *args) +{ + int i; + + for (i = 1; i < argc; i++) { + if (strcmp (argv[i], "--no-utf") == 0) { + args->options.use_utf = 0; + } + else if (strcmp (argv[i], "--no-bars") == 0) { + args->options.print_change_bars = 0; + } + else if (strcmp (argv[i], "--min-change") == 0) { + char *end = NULL; + i++; + if (i >= argc) + usage (argv[0]); + args->options.min_change = strtod (argv[i], &end); + if (*end) { + if (*end == '%') { + args->options.min_change /= 100; + } else { + usage (argv[0]); + } + } + } + else { + args->num_filenames++; + args->filenames = xrealloc (args->filenames, + args->num_filenames * sizeof (char *)); + args->filenames[args->num_filenames - 1] = argv[i]; + } + } +} + +int +main (int argc, + const char *argv[]) +{ + cairo_perf_diff_files_args_t args = { + NULL, /* filenames */ + 0, /* num_filenames */ + { + 0.05, /* min change */ + 1, /* use UTF-8? */ + 1, /* display change bars? */ + } + }; + cairo_perf_report_t *reports; + test_report_t *t; + int i; + + parse_args (argc, argv, &args); + + if (args.num_filenames) { + reports = xcalloc (args.num_filenames, sizeof (cairo_perf_report_t)); + for (i = 0; i < args.num_filenames; i++) { + cairo_perf_report_load (&reports[i], args.filenames[i], i, + test_report_cmp_name); + printf ("loaded: %s, %d tests\n", + args.filenames[i], reports[i].tests_count); + } + } else { + args.num_filenames = 1; + reports = xcalloc (args.num_filenames, sizeof (cairo_perf_report_t)); + cairo_perf_report_load (&reports[0], NULL, 0, test_report_cmp_name); + } + + cairo_perf_reports_compare (reports, args.num_filenames, &args.options); + + /* Pointless memory cleanup, (would be a great place for talloc) */ + free (args.filenames); + for (i = 0; i < args.num_filenames; i++) { + for (t = reports[i].tests; t->name; t++) { + free (t->samples); + free (t->backend); + free (t->name); + } + free (reports[i].tests); + free (reports[i].configuration); + } + free (reports); + + return 0; +} diff --git a/local/recipes/libs/cairo/source/perf/cairo-perf-diff b/local/recipes/libs/cairo/source/perf/cairo-perf-diff new file mode 100755 index 0000000000..5a4b7b3869 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-perf-diff @@ -0,0 +1,255 @@ +#!/bin/sh +set -e + +usage() { + argv0=`basename $0` + + cat >&2 << END +Usage: +For comparing files created my cairo-perf: + + $argv0 old.perf new.perf + +For comparing (cached) performance of revisions: + + $argv0 [OPTIONS] [-- cairo-perf options] + $argv0 [OPTIONS] [-- cairo-perf-options] + +If given a single revision, compares its results to that of its +(first-parent) predecessor. Otherwise compares the two given revisions. +The revisions can be any revision accepted by git. For example: + + $argv0 HEAD # Show impact of latest commit + $argv0 1.2.0 1.2.4 # Compare performance of 1.2.0 to 1.2.4 + +Options: + +-f, --force + Forces cairo-perf-diff to re-run performance tests + even if cached performance data is available. + +-h, --html + With this option performance changes are summarized + as HTML table. + +-t, --trace + Compare performance using trace replays instead of + microbenchmarks. + +Additional options can be passed the child cairo-perf process +by separating them with a double hyphen (--). For example, to +examine what the impact of the latest change is on the stroke +test you might use: + + $argv0 HEAD -- stroke + +The performance results are cached in .perf next to the .git directory. + +Set CAIRO_AUTOGEN_OPTIONS to pass options to autogen for both +builds. +END + + exit 1 +} + +benchmark="cairo-perf-micro" + +# First, pull off any known options +while true; do + case $1 in + -f|--force) force_cairo_perf="true";; + -h|--html) html_output="$2"; shift ;; + -t|--trace) benchmark="cairo-perf-trace";; + *) break;; + esac + + shift +done + +# Then if anything is left that still looks like an option, (begins +# with a dash), give usage to catch --help or any other -garbage +if [ $# -eq 0 ] || [ "`echo "$1" | sed 's/^-//'`" != "$1" ]; then + usage +fi + +# Finally, pick up the actual revision arguments +if [ $# -eq 1 ] || [ "$2" = "--" ]; then + old="$1^" + new="$1" + shift 1 +else + old="$1" + new="$2" + shift 2 +fi + +# And post-finally, pass anything after -- on to cairo-perf +CAIRO_PERF_OPTIONS="-r -i 10" +if [ $# -gt 0 ]; then + if [ "$1" = "--" ]; then + shift 1 + CAIRO_PERF_OPTIONS="$CAIRO_PERF_OPTIONS $@" + else + usage + fi +fi + +git_setup() { + SUBDIRECTORY_OK='Yes' + . "$(git --exec-path)/git-sh-setup" + CAIRO_DIR=`dirname $GIT_DIR` + if [ "$CAIRO_DIR" = "." ]; then + CAIRO_DIR=`pwd` + fi + CAIRO_PERF_DIR=$CAIRO_DIR/.perf +} + +rev2sha() { + rev=$1 + git rev-parse --verify $rev || ( echo "Cannot resolve $rev as a git object" && exit 1 ) +} + +cpu_count() { + test -f /proc/cpuinfo && + grep -c '^processor[[:blank:]]\+:' /proc/cpuinfo || + echo 1 +} + +# We cache performance output based on a two-part name capturing the +# current performance test suite and the library being tested. We +# capture these as the tree object of the perf directory in HEAD and +# the tree object of the src directory of the revision being tested. +# +# This way, whenever the performance suite is updated, cached output +# from old versions of the suite are automatically invalidated. Also, +# if a commit just changes things outside of the src tree, (say it +# changes the "test" test suite, or README or configure.in, or +# whatever), cairo-perf-diff will be smart enough to still use cached +# results from a run with an equivalent src tree. +rev2perf() { + rev=$1 + sha=`rev2sha $rev` + src_tree_sha=`rev2sha $rev:src` + perf_tree_sha=`rev2sha HEAD:perf` + script_tree_sha=`rev2sha HEAD:util/cairo-script` + echo "$CAIRO_PERF_DIR/${sha}-${perf_tree_sha}-${script_tree_sha}-${src_tree_sha}.perf" +} +rev2perf_glob() { + rev=$1 + src_tree_sha=`rev2sha $rev:src` + perf_tree_sha=`rev2sha HEAD:perf` + script_tree_sha=`rev2sha HEAD:util/cairo-script` + echo "$CAIRO_PERF_DIR/*-${perf_tree_sha}-${script_tree_sha}-${src_tree_sha}.perf" +} + +build() { + build_dir=$1 + sha=$2 + + if [ ! -d $build_dir ]; then + git clone -s $CAIRO_DIR $build_dir + (cd $build_dir; git checkout -b tmp-cairo-perf-diff $sha) + fi + cd $build_dir + + git checkout tmp-cairo-perf-diff + git reset --hard $sha + + if [ -z "$MAKEFLAGS" ]; then + CPU_COUNT=`cpu_count` + export MAKEFLAGS="-j`expr $CPU_COUNT + 1`" + fi + + if [ ! -e Makefile ]; then + ./autogen.sh $CAIRO_AUTOGEN_OPTIONS + fi + + for file in $boilerplate_files; do + rsync $CAIRO_DIR/$file boilerplate + done + for file in $perf_files; do + rsync $CAIRO_DIR/$file perf + done + for file in $script_files; do + rsync $CAIRO_DIR/$file util/cairo-script + done + + make || (rm config.cache && make) + (cd boilerplate && make libcairoboilerplate.la) + + cd perf + make ${benchmark} +} + +# Usage: run_cairo_perf_if_not_cached +# The argument must be a valid git ref-spec that can +# be resolved to a commit. The suffix is just something +# unique so that build directories can be separated for +# multiple calls to this function. +run_cairo_perf_if_not_cached() { + rev=$1 + build_dir="build-$2" + + owd=`pwd` + sha=`rev2sha $rev` + perf=`rev2perf $rev` + glob=`rev2perf_glob $rev` + if [ -e $glob ] && [ "$force_cairo_perf" != "true" ]; then + return 0 + fi + if [ ! -d $CAIRO_PERF_DIR ]; then + echo "Creating new perf cache in $CAIRO_PERF_DIR" + mkdir $CAIRO_PERF_DIR + fi + + cd $CAIRO_DIR + boilerplate_files=`git ls-tree --name-only HEAD boilerplate/*` + perf_files=`git ls-tree --name-only HEAD perf/*` + script_files=`git ls-tree --name-only HEAD util/cairo-script/*` + cd $CAIRO_PERF_DIR + + build $build_dir $sha || { + rm -rf $build_dir + build $build_dir $sha || exit 1 + } + + echo "Running \"cairo-perf $CAIRO_PERF_OPTIONS\" against $rev. Results will be cached in:" + { ./$benchmark $CAIRO_PERF_OPTIONS || echo "*** Performance test crashed"; } >> $perf + + cd $owd +} + +git_setup + +if [ -e ./cairo-perf-diff-files ]; then + bindir="." +else + bindir=$CAIRO_DIR/perf + + # Build cairo-perf-diff-files if not available + if [ ! -e $bindir/cairo-perf-diff-files ]; then + echo "Building cairo-perf-diff-files" + if [ "x$OS" = "xWindows_NT" ]; then + make -f Makefile.win32 -C $bindir cairo-perf-diff-files CFG=debug + else + make -C $bindir cairo-perf-diff-files + fi + fi +fi + +if [ ! -e $old ]; then + run_cairo_perf_if_not_cached $old old + old=`rev2perf $old` +fi + +if [ ! -e $new ]; then + run_cairo_perf_if_not_cached $new new + new=`rev2perf $new` +fi + +if [ -z "$html_output" ]; then + $bindir/cairo-perf-diff-files $old $new +else + $bindir/cairo-perf-diff-files $old $new | + $CAIRO_DIR/perf/make-html.py > $html_output +fi diff --git a/local/recipes/libs/cairo/source/perf/cairo-perf-diff-files.c b/local/recipes/libs/cairo/source/perf/cairo-perf-diff-files.c new file mode 100644 index 0000000000..4d3ff7a678 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-perf-diff-files.c @@ -0,0 +1,506 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of the + * copyright holders not be used in advertising or publicity + * pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied + * warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Authors: Carl Worth + */ + +#include "cairo-perf.h" + +#include +#include +#include +#include +#include +#include +#include + +typedef struct _cairo_perf_report_options { + double min_change; + int use_utf; + int print_change_bars; + int use_ticks; +} cairo_perf_report_options_t; + +typedef struct _cairo_perf_diff_files_args { + const char **filenames; + int num_filenames; + cairo_perf_report_options_t options; +} cairo_perf_diff_files_args_t; + +static int +test_diff_cmp_speedup_before_slowdown (const void *a, + const void *b) +{ + const test_diff_t *a_diff = a; + const test_diff_t *b_diff = b; + + /* First make all speedups come before all slowdowns. */ + if (a_diff->change > 0 && b_diff->change < 0) + return -1; + if (a_diff->change < 0 && b_diff->change > 0) + return 1; + + if (a_diff->change == b_diff->change) + return 0; + + /* Large speedups come first. */ + if (a_diff->change > 0) { + if (a_diff->change > b_diff->change) + return -1; + else + return 1; + } + + /* Large slowdowns come last. */ + if (a_diff->change < 0) { + if (a_diff->change < b_diff->change) + return 1; + else + return -1; + } + + return 0; +} + +static int +test_diff_cmp (const void *a, + const void *b) +{ + const test_diff_t *a_diff = a; + const test_diff_t *b_diff = b; + + /* Reverse sort by magnitude of change so larger changes come + * first */ + if (a_diff->change > b_diff->change) + return -1; + + if (a_diff->change < b_diff->change) + return 1; + + return 0; +} + +#define CHANGE_BAR_WIDTH 70 +static void +print_change_bar (double change, + double max_change, + int use_utf) +{ + int units_per_cell = ceil (max_change / CHANGE_BAR_WIDTH); + static char const *ascii_boxes[8] = { + "****","***" ,"***", "**", + "**", "*", "*", "" + }; + static char const *utf_boxes[8] = { + "â–ˆ", "â–‰", "â–Š", "â–‹", + "â–Œ", "â–", "â–Ž", "â–" + }; + char const **boxes = use_utf ? utf_boxes : ascii_boxes; + + /* For a 1.0x speedup we want a zero-size bar to show "no + * change". */ + change -= 1.0; + + while (change > units_per_cell) { + printf ("%s", boxes[0]); + change -= units_per_cell; + } + + change /= units_per_cell; + + if (change > 7.5/8.0) + printf ("%s", boxes[0]); + else if (change > 6.5/8.0) + printf ("%s", boxes[1]); + else if (change > 5.5/8.0) + printf ("%s", boxes[2]); + else if (change > 4.5/8.0) + printf ("%s", boxes[3]); + else if (change > 3.5/8.0) + printf ("%s", boxes[4]); + else if (change > 2.5/8.0) + printf ("%s", boxes[5]); + else if (change > 1.5/8.0) + printf ("%s", boxes[6]); + else if (change > 0.5/8.0) + printf ("%s", boxes[7]); + + printf ("\n"); +} + +static void +test_diff_print_binary (test_diff_t *diff, + double max_change, + cairo_perf_report_options_t *options) +{ + if (diff->tests[0]->size) + printf ("%5s-%-4s %26s-%-3d", + diff->tests[0]->backend, diff->tests[0]->content, + diff->tests[0]->name, diff->tests[0]->size); + else + printf ("%5s %26s", diff->tests[0]->backend, diff->tests[0]->name); + + printf (" %6.2f (%.2f %4.2f%%) -> %6.2f (%.2f %4.2f%%): %5.2fx ", + diff->tests[0]->stats.min_ticks / diff->tests[0]->stats.ticks_per_ms, + diff->tests[0]->stats.median_ticks / diff->tests[0]->stats.ticks_per_ms, + diff->tests[0]->stats.std_dev * 100, + diff->tests[1]->stats.min_ticks / diff->tests[1]->stats.ticks_per_ms, + diff->tests[1]->stats.median_ticks / diff->tests[1]->stats.ticks_per_ms, + diff->tests[1]->stats.std_dev * 100, + fabs (diff->change)); + + if (diff->change > 1.0) + printf ("speedup\n"); + else + printf ("slowdown\n"); + + if (options->print_change_bars) + print_change_bar (fabs (diff->change), max_change, + options->use_utf); +} + +static void +test_diff_print_multi (test_diff_t *diff, + double max_change, + cairo_perf_report_options_t *options) +{ + int i; + double test_time; + double change; + + if (diff->tests[0]->size) { + printf ("%s (backend: %s-%s, size: %d)\n", + diff->tests[0]->name, + diff->tests[0]->backend, + diff->tests[0]->content, + diff->tests[0]->size); + } else { + printf ("%s (backend: %s)\n", + diff->tests[0]->name, + diff->tests[0]->backend); + } + + for (i = 0; i < diff->num_tests; i++) { + test_time = diff->tests[i]->stats.min_ticks; + if (! options->use_ticks) + test_time /= diff->tests[i]->stats.ticks_per_ms; + change = diff->max / test_time; + printf ("[%d] %6.2f: %5.2fx ", + diff->tests[i]->fileno, + diff->tests[i]->stats.min_ticks / diff->tests[i]->stats.ticks_per_ms, + change); + + if (options->print_change_bars) + print_change_bar (change, max_change, options->use_utf); + else + printf("\n"); + } + + printf("\n"); +} + +static void +cairo_perf_reports_compare (cairo_perf_report_t *reports, + int num_reports, + cairo_perf_report_options_t *options) +{ + int i; + test_report_t **tests, *min_test; + test_diff_t *diff, *diffs; + int num_diffs, max_diffs; + double max_change; + double test_time; + int seen_non_null; + cairo_bool_t printed_speedup = FALSE; + cairo_bool_t printed_slowdown = FALSE; + + assert (num_reports >= 2); + + tests = xmalloc (num_reports * sizeof (test_report_t *)); + + max_diffs = reports[0].tests_count; + for (i = 0; i < num_reports; i++) { + tests[i] = reports[i].tests; + if (reports[i].tests_count > max_diffs) + max_diffs = reports[i].tests_count; + } + + diff = diffs = xmalloc (max_diffs * sizeof (test_diff_t)); + + num_diffs = 0; + while (1) { + /* We expect iterations values of 0 when multiple raw reports + * for the same test have been condensed into the stats of the + * first. So we just skip these later reports that have no + * stats. */ + seen_non_null = 0; + for (i = 0; i < num_reports; i++) { + while (tests[i]->name && tests[i]->stats.iterations == 0) + tests[i]++; + if (tests[i]->name) + seen_non_null++; + } + + if (seen_non_null < 2) + break; + + /* Find the minimum of all current tests, (we have to do this + * in case some reports don't have a particular test). */ + for (i = 0; i < num_reports; i++) { + if (tests[i]->name) { + min_test = tests[i]; + break; + } + } + for (++i; i < num_reports; i++) { + if (tests[i]->name && + test_report_cmp_backend_then_name (tests[i], min_test) < 0) + { + min_test = tests[i]; + } + } + + /* For each report that has the current test, record it into + * the diff structure. */ + diff->num_tests = 0; + diff->tests = xmalloc (num_reports * sizeof (test_diff_t)); + for (i = 0; i < num_reports; i++) { + if (tests[i]->name && + test_report_cmp_backend_then_name (tests[i], min_test) == 0) + { + test_time = tests[i]->stats.min_ticks; + if (! options->use_ticks) + test_time /= tests[i]->stats.ticks_per_ms; + if (diff->num_tests == 0) { + diff->min = test_time; + diff->max = test_time; + } else { + if (test_time < diff->min) + diff->min = test_time; + if (test_time > diff->max) + diff->max = test_time; + } + diff->tests[diff->num_tests++] = tests[i]; + tests[i]++; + } + } + diff->change = diff->max / diff->min; + + if (num_reports == 2) { + double old_time, new_time; + if (diff->num_tests == 1) { + printf ("Only in %s: %s %s\n", + diff->tests[0]->configuration, + diff->tests[0]->backend, + diff->tests[0]->name); + continue; + } + old_time = diff->tests[0]->stats.min_ticks; + new_time = diff->tests[1]->stats.min_ticks; + if (! options->use_ticks) { + old_time /= diff->tests[0]->stats.ticks_per_ms; + new_time /= diff->tests[1]->stats.ticks_per_ms; + } + diff->change = old_time / new_time; + if (diff->change < 1.0) + diff->change = - 1.0 / diff->change; + } + + diff++; + num_diffs++; + } + if (num_diffs == 0) + goto DONE; + + if (num_reports == 2) + qsort (diffs, num_diffs, sizeof (test_diff_t), + test_diff_cmp_speedup_before_slowdown); + else + qsort (diffs, num_diffs, sizeof (test_diff_t), test_diff_cmp); + + max_change = 1.0; + for (i = 0; i < num_diffs; i++) { + if (fabs (diffs[i].change) > max_change) + max_change = fabs (diffs[i].change); + } + + if (num_reports == 2) + printf ("old: %s\n" + "new: %s\n", + diffs->tests[0]->configuration, + diffs->tests[1]->configuration); + + for (i = 0; i < num_diffs; i++) { + diff = &diffs[i]; + + /* Discard as uninteresting a change which is less than the + * minimum change required, (default may be overridden on + * command-line). */ + if (fabs (diff->change) - 1.0 < options->min_change) + continue; + + if (num_reports == 2) { + if (diff->change > 1.0 && ! printed_speedup) { + printf ("Speedups\n" + "========\n"); + printed_speedup = TRUE; + } + if (diff->change < 1.0 && ! printed_slowdown) { + printf ("Slowdowns\n" + "=========\n"); + printed_slowdown = TRUE; + } + test_diff_print_binary (diff, max_change, options); + } else { + test_diff_print_multi (diff, max_change, options); + } + } + + DONE: + for (i = 0; i < num_diffs; i++) + free (diffs[i].tests); + free (diffs); + free (tests); +} + +static void +usage (const char *argv0) +{ + char const *basename = strrchr(argv0, '/'); + basename = basename ? basename+1 : argv0; + fprintf (stderr, + "Usage: %s [options] file1 file2 [...]\n\n", + basename); + fprintf (stderr, + "Computes significant performance differences for cairo performance reports.\n" + "Each file should be the output of the cairo-perf program (or \"make perf\").\n" + "The following options are available:\n" + "\n" + "--no-utf Use ascii stars instead of utf-8 change bars.\n" + " Four stars are printed per factor of speedup.\n" + "\n" + "--no-bars Don't display change bars at all.\n\n" + "\n" + "--use-ms Use milliseconds to calculate differences.\n" + " (instead of ticks which are hardware dependent)\n" + "\n" + "--min-change threshold[%%]\n" + " Suppress all changes below the given threshold.\n" + " The default threshold of 0.05 or 5%% ignores any\n" + " speedup or slowdown of 1.05 or less. A threshold\n" + " of 0 will cause all output to be reported.\n" + ); + exit(1); +} + +static void +parse_args (int argc, + char const **argv, + cairo_perf_diff_files_args_t *args) +{ + int i; + + for (i = 1; i < argc; i++) { + if (strcmp (argv[i], "--no-utf") == 0) { + args->options.use_utf = 0; + } + else if (strcmp (argv[i], "--no-bars") == 0) { + args->options.print_change_bars = 0; + } + else if (strcmp (argv[i], "--use-ms") == 0) { + /* default */ + } + else if (strcmp (argv[i], "--use-ticks") == 0) { + args->options.use_ticks = 1; + } + else if (strcmp (argv[i], "--min-change") == 0) { + char *end = NULL; + i++; + if (i >= argc) + usage (argv[0]); + args->options.min_change = strtod (argv[i], &end); + if (*end) { + if (*end == '%') { + args->options.min_change /= 100; + } else { + usage (argv[0]); + } + } + } + else { + args->num_filenames++; + args->filenames = xrealloc (args->filenames, + args->num_filenames * sizeof (char *)); + args->filenames[args->num_filenames - 1] = argv[i]; + } + } +} + +int +main (int argc, + const char *argv[]) +{ + cairo_perf_diff_files_args_t args = { + NULL, /* filenames */ + 0, /* num_filenames */ + { + 0.05, /* min change */ + 1, /* use UTF-8? */ + 1, /* display change bars? */ + } + }; + cairo_perf_report_t *reports; + test_report_t *t; + int i; + + parse_args (argc, argv, &args); + + if (args.num_filenames < 2) + usage (argv[0]); + + reports = xmalloc (args.num_filenames * sizeof (cairo_perf_report_t)); + + for (i = 0; i < args.num_filenames; i++ ) { + cairo_perf_report_load (&reports[i], args.filenames[i], i, NULL); + printf ("[%d] %s\n", i, args.filenames[i]); + } + printf ("\n"); + + cairo_perf_reports_compare (reports, args.num_filenames, &args.options); + + /* Pointless memory cleanup, (would be a great place for talloc) */ + free (args.filenames); + for (i = 0; i < args.num_filenames; i++) { + for (t = reports[i].tests; t->name; t++) { + free (t->samples); + free (t->backend); + free (t->name); + } + free (reports[i].tests); + free (reports[i].configuration); + } + free (reports); + + return 0; +} diff --git a/local/recipes/libs/cairo/source/perf/cairo-perf-graph b/local/recipes/libs/cairo/source/perf/cairo-perf-graph new file mode 100755 index 0000000000..a167351fc3 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-perf-graph @@ -0,0 +1,206 @@ +#!/bin/sh +set -e + +### +### XXX Source common functions from cairo-perf-diff +### + +usage() { + argv0=`basename $0` + + cat >&2 << END +Usage: +As opposed to its sibling, cairo-perf-diff, cairo-perf-graph targets +reviewing changes between series by graphically comparing the performance +at each commit. + +The two revisions can be any revision accepted by git. For example: + + $argv0 1.2.0 1.2.4 # Compare performance of 1.2.0 to 1.2.4 + +Options: + +-f, --force + Forces cairo-perf-diff to re-run performance tests + even if cached performance data is available. + +-h, --html + With this option performance changes are summarized + as HTML table. + +Additional options can be passed the child cairo-perf process +by separating them with a double hyphen (--). For example, to +examine what the impact of the latest change is on the stroke +test you might use: + + $argv0 HEAD -- stroke + +The performance results are cached in .perf next to the .git directory. + +Set CAIRO_AUTOGEN_OPTIONS to pass options to autogen for both +builds. +END + + exit 1 +} + +# First, pull off any known options +while true; do + case $1 in + -f|--force) force_cairo_perf="true";; + -h|--html) html_output="true";; + -s|--show) show_only="true";; + *) break;; + esac + + shift +done + +# Then if anything is left that still looks like an option, (begins +# with a dash), give usage to catch --help or any other -garbage +if [ $# -eq 0 ] || [ "`echo "$1" | sed 's/^-//'`" != "$1" ]; then + usage +fi + +# Finally, pick up the actual revision arguments +old="$1" +new="$2" +shift 2 + +# And post-finally, pass anything after -- on to cairo-perf +CAIRO_PERF_OPTIONS="-r -i 25" +if [ $# -gt 0 ]; then + if [ "$1" = "--" ]; then + shift 1 + CAIRO_PERF_OPTIONS="$CAIRO_PERF_OPTIONS $@" + else + usage + fi +fi + +git_setup() { + SUBDIRECTORY_OK='Yes' + . "$(git --exec-path)/git-sh-setup" + CAIRO_DIR=`dirname $GIT_DIR` + if [ "$CAIRO_DIR" = "." ]; then + CAIRO_DIR=`pwd` + fi + CAIRO_PERF_DIR=$CAIRO_DIR/.perf +} + +rev2sha() { + rev=$1 + git rev-parse --verify $rev || ( echo "Cannot resolve $rev as a git object" && exit 1 ) +} + +cpu_count() { + test -f /proc/cpuinfo && + grep -c '^processor[[:blank:]]\+:' /proc/cpuinfo || + echo 1 +} + +# We cache performance output based on a two-part name capturing the +# current performance test suite and the library being tested. We +# capture these as the tree object of the perf directory in HEAD and +# the tree object of the src directory of the revision being tested. +# +# This way, whenever the performance suite is updated, cached output +# from old versions of the suite are automatically invalidated. Also, +# if a commit just changes things outside of the src tree, (say it +# changes the "test" test suite, or README or configure.in, or +# whatever), cairo-perf-diff will be smart enough to still use cached +# results from a run with an equivalent src tree. +rev2perf() { + rev=$1 + sha=`rev2sha $rev` + src_tree_sha=`rev2sha $rev:src` + perf_tree_sha=`rev2sha HEAD:perf` + echo "$CAIRO_PERF_DIR/${sha}-${perf_tree_sha}-${src_tree_sha}.perf" +} +rev2perf_glob() { + rev=$1 + src_tree_sha=`rev2sha $rev:src` + perf_tree_sha=`rev2sha HEAD:perf` + echo "$CAIRO_PERF_DIR/*-${perf_tree_sha}-${src_tree_sha}.perf" +} + +# Usage: run_cairo_perf_if_not_cached +# The argument must be a valid git ref-spec that can +# be resolved to a commit. The suffix is just something +# unique so that build directories can be separated for +# multiple calls to this function. +run_cairo_perf_if_not_cached() { + rev=$1 + build_dir="build-$2" + + owd=`pwd` + sha=`rev2sha $rev` + perf=`rev2perf $rev` + glob=`rev2perf_glob $rev` + if [ -e $glob ] && [ "$force_cairo_perf" != "true" ] || [ -n "$show_only" ]; then + return 0 + fi + if [ ! -d $CAIRO_PERF_DIR ]; then + echo "Creating new perf cache in $CAIRO_PERF_DIR" + mkdir $CAIRO_PERF_DIR + fi + + cd $CAIRO_DIR + boilerplate_files=`git ls-tree --name-only HEAD boilerplate/*` + perf_files=`git ls-tree --name-only HEAD perf/*` + cd $CAIRO_PERF_DIR + + if [ ! -d $build_dir ]; then + git clone -s $CAIRO_DIR $build_dir + (cd $build_dir; git checkout -b tmp-cairo-perf-diff $sha) + fi + cd $build_dir + + git checkout tmp-cairo-perf-diff + git reset --hard $sha + + if [ -z "$MAKEFLAGS" ]; then + CPU_COUNT=`cpu_count` + export MAKEFLAGS="-j`expr $CPU_COUNT + 1`" + fi + + if [ ! -e Makefile ]; then + CFLAGS="-O2" ./autogen.sh $CAIRO_AUTOGEN_OPTIONS + fi + make CFLAGS="-O2" || (rm config.cache && make CFLAGS="-O2") + for file in $boilerplate_files; do + rsync $CAIRO_DIR/$file boilerplate + done + (cd boilerplate; make) + for file in $perf_files; do + rsync $CAIRO_DIR/$file perf + done + cd perf; + make cairo-perf || exit 1 + echo "Running \"cairo-perf $CAIRO_PERF_OPTIONS\" against $rev. Results will be cached in:" + echo "$perf" + (./cairo-perf $CAIRO_PERF_OPTIONS || echo "*** Performance test crashed") >> $perf + cd $owd +} + +git_setup + +# Build cairo-perf-graph-files if not available +if [ ! -e $CAIRO_DIR/perf/cairo-perf-graph-files ]; then + echo "Building cairo-perf-graph-files" + if [ "x$OS" = "xWindows_NT" ]; then + make -f Makefile.win32 -C $CAIRO_DIR/perf/ cairo-perf-graph-files CFG=debug + else + make -C $CAIRO_DIR/perf/ cairo-perf-graph-files + fi +fi + +revs="" +for rev in `git rev-list --reverse $old..$new`; do + run_cairo_perf_if_not_cached $rev rev + perf=`rev2perf $rev` + [ -e "$perf" ] && revs="$revs $perf" +done + +exec $CAIRO_DIR/perf/cairo-perf-graph-files $revs +#exec $CAIRO_DIR/libtool --mode=execute gdb --args $CAIRO_DIR/perf/cairo-perf-graph-files $revs diff --git a/local/recipes/libs/cairo/source/perf/cairo-perf-graph-files.c b/local/recipes/libs/cairo/source/perf/cairo-perf-graph-files.c new file mode 100644 index 0000000000..9a2a325e63 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-perf-graph-files.c @@ -0,0 +1,617 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of the + * copyright holders not be used in advertising or publicity + * pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied + * warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Authors: Chris Wilson + */ + +#define GLIB_DISABLE_DEPRECATION_WARNINGS + +#include "cairo-perf.h" +#include "cairo-perf-graph.h" + +#include +#include +#include + +#ifdef G_OS_UNIX +#include +#include +#endif + +#include + +static void +usage (const char *argv0) +{ + char const *basename = strrchr (argv0, '/'); + basename = basename ? basename+1 : argv0; + g_printerr ("Usage: %s [options] file1 file2 [...]\n\n", basename); + g_printerr ("Draws a graph illustrating the change in performance over a series.\n"); + exit(1); +} + +enum { + CASE_SHOWN, + CASE_INCONSISTENT, + CASE_BACKEND, + CASE_CONTENT, + CASE_NAME, + CASE_SIZE, + CASE_FG_COLOR, + CASE_DATA, + CASE_NCOLS +}; + +static GtkTreeStore * +cases_to_store (test_case_t *cases) +{ + GtkTreeStore *store; + GtkTreeIter backend_iter; + GtkTreeIter content_iter; + const char *backend = NULL; + const char *content = NULL; + + store = gtk_tree_store_new (CASE_NCOLS, + G_TYPE_BOOLEAN, /* shown */ + G_TYPE_BOOLEAN, /* inconsistent */ + G_TYPE_STRING, /* backend */ + G_TYPE_STRING, /* content */ + G_TYPE_STRING, /* name */ + G_TYPE_INT, /* size */ + GDK_TYPE_COLOR, /* fg color */ + G_TYPE_POINTER); /* data */ + while (cases->backend != NULL) { + GtkTreeIter iter; + + if (backend == NULL || strcmp (backend, cases->backend)) { + gtk_tree_store_append (store, &backend_iter, NULL); + gtk_tree_store_set (store, &backend_iter, + CASE_SHOWN, TRUE, + CASE_BACKEND, cases->backend, + -1); + backend = cases->backend; + content = NULL; + } + if (content == NULL || strcmp (content, cases->content)) { + gtk_tree_store_append (store, &content_iter, &backend_iter); + gtk_tree_store_set (store, &content_iter, + CASE_SHOWN, TRUE, + CASE_BACKEND, cases->backend, + CASE_CONTENT, cases->content, + -1); + content = cases->content; + } + + gtk_tree_store_append (store, &iter, &content_iter); + gtk_tree_store_set (store, &iter, + CASE_SHOWN, TRUE, + CASE_BACKEND, cases->backend, + CASE_CONTENT, cases->content, + CASE_NAME, cases->name, + CASE_SIZE, cases->size, + CASE_FG_COLOR, &cases->color, + CASE_DATA, cases, + -1); + cases++; + } + + return store; +} + +struct _app_data { + GtkWidget *window; + + test_case_t *cases; + cairo_perf_report_t *reports; + int num_reports; + + GtkTreeStore *case_store; + + GIOChannel *git_io; + GtkTextBuffer *git_buffer; + + GtkWidget *gv; +}; + +static void +recurse_set_shown (GtkTreeModel *model, + GtkTreeIter *parent, + gboolean shown) +{ + GtkTreeIter iter; + + if (gtk_tree_model_iter_children (model, &iter, parent)) do { + test_case_t *c; + + gtk_tree_model_get (model, &iter, CASE_DATA, &c, -1); + if (c == NULL) { + recurse_set_shown (model, &iter, shown); + } else if (shown != c->shown) { + c->shown = shown; + gtk_tree_store_set (GTK_TREE_STORE (model), &iter, + CASE_SHOWN, shown, + CASE_INCONSISTENT, FALSE, + -1); + } + } while (gtk_tree_model_iter_next (model, &iter)); +} + +static gboolean +children_consistent (GtkTreeModel *model, + GtkTreeIter *parent) +{ + GtkTreeIter iter; + gboolean first = TRUE; + gboolean first_active; + + if (gtk_tree_model_iter_children (model, &iter, parent)) do { + gboolean active, inconsistent; + + gtk_tree_model_get (model, &iter, + CASE_INCONSISTENT, &inconsistent, + CASE_SHOWN, &active, + -1); + if (inconsistent) + return FALSE; + + if (first) { + first_active = active; + first = FALSE; + } else if (active != first_active) + return FALSE; + } while (gtk_tree_model_iter_next (model, &iter)); + + return TRUE; +} + +static void +check_consistent (GtkTreeModel *model, + GtkTreeIter *child) +{ + GtkTreeIter parent; + + if (gtk_tree_model_iter_parent (model, &parent, child)) { + gtk_tree_store_set (GTK_TREE_STORE (model), &parent, + CASE_INCONSISTENT, + ! children_consistent (model, &parent), + -1); + check_consistent (model, &parent); + } +} + +static void +show_case_toggled (GtkCellRendererToggle *cell, + gchar *str, + struct _app_data *app) +{ + GtkTreeModel *model; + GtkTreePath *path; + GtkTreeIter iter; + test_case_t *c; + gboolean active; + + active = ! gtk_cell_renderer_toggle_get_active (cell); + + model = GTK_TREE_MODEL (app->case_store); + + path = gtk_tree_path_new_from_string (str); + gtk_tree_model_get_iter (model, &iter, path); + gtk_tree_path_free (path); + + gtk_tree_store_set (app->case_store, &iter, + CASE_SHOWN, active, + CASE_INCONSISTENT, FALSE, + -1); + gtk_tree_model_get (model, &iter, CASE_DATA, &c, -1); + if (c != NULL) { + if (active == c->shown) + return; + + c->shown = active; + } else { + recurse_set_shown (model, &iter, active); + } + check_consistent (model, &iter); + + graph_view_update_visible ((GraphView *) app->gv); +} + +#ifdef G_OS_UNIX + +static gboolean +git_read (GIOChannel *io, + GIOCondition cond, + struct _app_data *app) +{ + int fd; + + fd = g_io_channel_unix_get_fd (io); + do { + char buf[4096]; + int len; + GtkTextIter end; + + len = read (fd, buf, sizeof (buf)); + if (len <= 0) { + int err = len ? errno : 0; + switch (err) { + case EAGAIN: + case EINTR: + return TRUE; + default: + g_io_channel_unref (app->git_io); + app->git_io = NULL; + return FALSE; + } + } + + gtk_text_buffer_get_end_iter (app->git_buffer, &end); + gtk_text_buffer_insert (app->git_buffer, &end, buf, len); + } while (TRUE); +} + +static void +do_git (struct _app_data *app, + char **argv) +{ + gint output; + GError *error = NULL; + GtkTextIter start, stop; + long flags; + + if (! g_spawn_async_with_pipes (NULL, argv, NULL, + G_SPAWN_SEARCH_PATH | + G_SPAWN_STDERR_TO_DEV_NULL | + G_SPAWN_FILE_AND_ARGV_ZERO, + NULL, NULL, NULL, + NULL, &output, NULL, + &error)) + { + g_error ("spawn failed: %s", error->message); + } + + if (app->git_io) { + g_io_channel_shutdown (app->git_io, FALSE, NULL); + g_io_channel_unref (app->git_io); + } + + gtk_text_buffer_get_bounds (app->git_buffer, &start, &stop); + gtk_text_buffer_delete (app->git_buffer, &start, &stop); + + flags = fcntl (output, F_GETFL); + if ((flags & O_NONBLOCK) == 0) + fcntl (output, F_SETFL, flags | O_NONBLOCK); + + app->git_io = g_io_channel_unix_new (output); + g_io_add_watch (app->git_io, G_IO_IN | G_IO_HUP, (GIOFunc) git_read, app); +} + +#endif + +static void +gv_report_selected (GraphView *gv, + int i, + struct _app_data *app) +{ + cairo_perf_report_t *report; + char *hyphen; + + if (i == -1) + return; + + report = &app->reports[i]; + hyphen = strchr (report->configuration, '-'); + if (hyphen != NULL) { + int len = hyphen - report->configuration; + char *id = g_malloc (len + 1); + char *argv[5]; + + memcpy (id, report->configuration, len); + id[len] = '\0'; + + argv[0] = (char *) "git"; + argv[1] = (char *) "git"; + argv[2] = (char *) "show"; + argv[3] = id; + argv[4] = NULL; + +#ifdef G_OS_UNIX + do_git (app, argv); +#else + g_print ("id: %s\n", id); +#endif + g_free (id); + } +} + +static GtkWidget * +window_create (test_case_t *cases, + cairo_perf_report_t *reports, + int num_reports) +{ + GtkWidget *window, *table, *w; + GtkWidget *tv, *sw; + GtkTreeStore *store; + GtkTreeViewColumn *column; + GtkCellRenderer *renderer; + struct _app_data *data; + + + data = g_new0 (struct _app_data, 1); + data->cases = cases; + data->reports = reports; + data->num_reports = num_reports; + + window = gtk_window_new (GTK_WINDOW_TOPLEVEL); + gtk_window_set_title (GTK_WINDOW (window), "Cairo Performance Graph"); + g_object_set_data_full (G_OBJECT (window), + "app-data", data, (GDestroyNotify)g_free); + + data->window = window; + + table = gtk_table_new (2, 2, FALSE); + + /* legend & show/hide lines (categorised) */ + tv = gtk_tree_view_new (); + store = cases_to_store (cases); + data->case_store = store; + gtk_tree_view_set_model (GTK_TREE_VIEW (tv), GTK_TREE_MODEL (store)); + + renderer = gtk_cell_renderer_toggle_new (); + column = gtk_tree_view_column_new_with_attributes (NULL, + renderer, + "active", CASE_SHOWN, + "inconsistent", CASE_INCONSISTENT, + NULL); + gtk_tree_view_append_column (GTK_TREE_VIEW (tv), column); + g_signal_connect (renderer, "toggled", + G_CALLBACK (show_case_toggled), data); + + renderer = gtk_cell_renderer_text_new (); + column = gtk_tree_view_column_new_with_attributes ("Backend", + renderer, + "text", CASE_BACKEND, + NULL); + gtk_tree_view_append_column (GTK_TREE_VIEW (tv), column); + + renderer = gtk_cell_renderer_text_new (); + column = gtk_tree_view_column_new_with_attributes ("Content", + renderer, + "text", CASE_CONTENT, + NULL); + gtk_tree_view_append_column (GTK_TREE_VIEW (tv), column); + + renderer = gtk_cell_renderer_text_new (); + column = gtk_tree_view_column_new_with_attributes ("Test", + renderer, + "text", CASE_NAME, + "foreground-gdk", CASE_FG_COLOR, + NULL); + gtk_tree_view_append_column (GTK_TREE_VIEW (tv), column); + + renderer = gtk_cell_renderer_text_new (); + column = gtk_tree_view_column_new_with_attributes ("Size", + renderer, + "text", CASE_SIZE, + NULL); + gtk_tree_view_append_column (GTK_TREE_VIEW (tv), column); + + gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (tv), TRUE); + g_object_unref (store); + + sw = gtk_scrolled_window_new (NULL, NULL); + gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), + GTK_POLICY_NEVER, + GTK_POLICY_AUTOMATIC); + gtk_container_add (GTK_CONTAINER (sw), tv); + gtk_widget_show (tv); + gtk_table_attach (GTK_TABLE (table), sw, + 0, 1, 0, 2, + GTK_FILL, GTK_FILL, + 4, 4); + gtk_widget_show (sw); + + /* the performance chart */ + w = graph_view_new (); + data->gv = w; + g_signal_connect (w, "report-selected", + G_CALLBACK (gv_report_selected), data); + graph_view_set_reports ((GraphView *)w, cases, reports, num_reports); + gtk_table_attach (GTK_TABLE (table), w, + 1, 2, 0, 1, + GTK_FILL | GTK_EXPAND, GTK_FILL | GTK_EXPAND, + 4, 4); + gtk_widget_show (w); + + /* interesting information - presumably the commit log */ + w = gtk_text_view_new (); + data->git_buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (w)); + sw = gtk_scrolled_window_new (NULL, NULL); + gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), + GTK_POLICY_NEVER, + GTK_POLICY_AUTOMATIC); + gtk_container_add (GTK_CONTAINER (sw), w); + gtk_widget_show (w); + gtk_table_attach (GTK_TABLE (table), sw, + 1, 2, 1, 2, + GTK_FILL, GTK_FILL | GTK_EXPAND, + 4, 4); + gtk_widget_show (sw); + + gtk_container_add (GTK_CONTAINER (window), table); + gtk_widget_show (table); + + return window; +} + +static void +name_to_color (const char *name, + GdkColor *color) +{ + gint v = g_str_hash (name); + + color->red = ((v >> 0) & 0xff) / 384. * 0xffff; + color->green = ((v >> 8) & 0xff) / 384. * 0xffff; + color->blue = ((v >> 16) & 0xff) / 384. * 0xffff; +} + +static test_case_t * +test_cases_from_reports (cairo_perf_report_t *reports, + int num_reports) +{ + test_case_t *cases, *c; + test_report_t **tests; + int i, j; + int num_tests; + + num_tests = 0; + for (i = 0; i < num_reports; i++) { + for (j = 0; reports[i].tests[j].name != NULL; j++) + ; + if (j > num_tests) + num_tests = j; + } + + cases = xcalloc (num_tests+1, sizeof (test_case_t)); + tests = xmalloc (num_reports * sizeof (test_report_t *)); + for (i = 0; i < num_reports; i++) + tests[i] = reports[i].tests; + + c = cases; + while (1) { + int seen_non_null; + test_report_t *min_test; + + /* We expect iterations values of 0 when multiple raw reports + * for the same test have been condensed into the stats of the + * first. So we just skip these later reports that have no + * stats. */ + seen_non_null = 0; + for (i = 0; i < num_reports; i++) { + while (tests[i]->name && tests[i]->stats.iterations == 0) + tests[i]++; + if (tests[i]->name) + seen_non_null++; + } + + if (seen_non_null < 2) + break; + + /* Find the minimum of all current tests, (we have to do this + * in case some reports don't have a particular test). */ + for (i = 0; i < num_reports; i++) { + if (tests[i]->name) { + min_test = tests[i]; + break; + } + } + for (++i; i < num_reports; i++) { + if (tests[i]->name && + test_report_cmp_backend_then_name (tests[i], min_test) < 0) + { + min_test = tests[i]; + } + } + + c->min_test = min_test; + c->backend = min_test->backend; + c->content = min_test->content; + c->name = min_test->name; + c->size = min_test->size; + c->baseline = min_test->stats.min_ticks; + c->min = c->max = 1.; + c->shown = TRUE; + name_to_color (c->name, &c->color); + + for (i = 0; i < num_reports; i++) { + if (tests[i]->name && + test_report_cmp_backend_then_name (tests[i], min_test) == 0) + { + tests[i]++; + break; + } + } + + for (++i; i < num_reports; i++) { + if (tests[i]->name && + test_report_cmp_backend_then_name (tests[i], min_test) == 0) + { + double v = tests[i]->stats.min_ticks / c->baseline; + if (v < c->min) + c->min = v; + if (v > c->max) + c->max = v; + tests[i]++; + } + } + + c++; + } + free (tests); + + return cases; +} +int +main (int argc, + char *argv[]) +{ + cairo_perf_report_t *reports; + test_case_t *cases; + test_report_t *t; + int i; + GtkWidget *window; + + gtk_init (&argc, &argv); + + if (argc < 3) + usage (argv[0]); + + reports = xmalloc ((argc-1) * sizeof (cairo_perf_report_t)); + for (i = 1; i < argc; i++ ) + cairo_perf_report_load (&reports[i-1], argv[i], i, NULL); + + cases = test_cases_from_reports (reports, argc-1); + + window = window_create (cases, reports, argc-1); + g_signal_connect (window, "delete-event", + G_CALLBACK (gtk_main_quit), NULL); + gtk_widget_show (window); + + gtk_main (); + + /* Pointless memory cleanup, (would be a great place for talloc) */ + free (cases); + for (i = 0; i < argc-1; i++) { + for (t = reports[i].tests; t->name; t++) { + free (t->samples); + free (t->backend); + free (t->name); + } + free (reports[i].tests); + free (reports[i].configuration); + } + free (reports); + + return 0; +} diff --git a/local/recipes/libs/cairo/source/perf/cairo-perf-graph-widget.c b/local/recipes/libs/cairo/source/perf/cairo-perf-graph-widget.c new file mode 100644 index 0000000000..9da0abbfee --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-perf-graph-widget.c @@ -0,0 +1,604 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of the + * copyright holders not be used in advertising or publicity + * pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied + * warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Authors: Chris Wilson + */ + +#define GLIB_DISABLE_DEPRECATION_WARNINGS + +#include "cairo-perf.h" +#include "cairo-perf-graph.h" + +#include + +struct _GraphView { + GtkWidget widget; + + test_case_t *cases; + cairo_perf_report_t *reports; + int num_reports; + double ymin, ymax; + + int selected_report; +}; + +typedef struct _GraphViewClass { + GtkWidgetClass parent_class; +} GraphViewClass; + +static GType graph_view_get_type (void); + +enum { + REPORT_SELECTED, + LAST_SIGNAL +}; + +static guint signals[LAST_SIGNAL]; + +G_DEFINE_TYPE (GraphView, graph_view, GTK_TYPE_WIDGET) + +static void +draw_baseline_performance (test_case_t *cases, + cairo_perf_report_t *reports, + int num_reports, + cairo_t *cr, + const cairo_matrix_t *m) +{ + test_report_t **tests; + double dots[2] = { 0, 1.}; + int i; + + tests = xmalloc (num_reports * sizeof (test_report_t *)); + for (i = 0; i < num_reports; i++) + tests[i] = reports[i].tests; + + while (cases->backend != NULL) { + test_report_t *min_test; + double baseline, last_y; + double x, y; + + if (! cases->shown) { + cases++; + continue; + } + + min_test = cases->min_test; + + for (i = 0; i < num_reports; i++) { + while (tests[i]->name && + test_report_cmp_backend_then_name (tests[i], min_test) < 0) + { + tests[i]++; + } + } + + /* first the stroke */ + cairo_save (cr); + cairo_set_line_width (cr, 2.); + gdk_cairo_set_source_color (cr, &cases->color); + for (i = 0; i < num_reports; i++) { + if (tests[i]->name && + test_report_cmp_backend_then_name (tests[i], min_test) == 0) + { + baseline = tests[i]->stats.min_ticks; + + x = i; y = 0; + cairo_matrix_transform_point (m, &x, &y); + x = floor (x); + y = floor (y); + cairo_move_to (cr, x, y); + last_y = y; + break; + } + } + + for (++i; i < num_reports; i++) { + if (tests[i]->name && + test_report_cmp_backend_then_name (tests[i], min_test) == 0) + { + x = i, y = tests[i]->stats.min_ticks / baseline; + + if (y < 1.) + y = -1./y + 1; + else + y -= 1; + + cairo_matrix_transform_point (m, &x, &y); + x = floor (x); + y = floor (y); + cairo_line_to (cr, x, last_y); + cairo_line_to (cr, x, y); + last_y = y; + } + } + { + x = num_reports, y = 0; + cairo_matrix_transform_point (m, &x, &y); + x = floor (x); + cairo_line_to (cr, x, last_y); + } + + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + + /* then draw the points */ + for (i = 0; i < num_reports; i++) { + if (tests[i]->name && + test_report_cmp_backend_then_name (tests[i], min_test) == 0) + { + baseline = tests[i]->stats.min_ticks; + + x = i; y = 0; + cairo_matrix_transform_point (m, &x, &y); + x = floor (x); + y = floor (y); + cairo_move_to (cr, x, y); + cairo_close_path (cr); + last_y = y; + + tests[i]++; + break; + } + } + + for (++i; i < num_reports; i++) { + if (tests[i]->name && + test_report_cmp_backend_then_name (tests[i], min_test) == 0) + { + x = i, y = tests[i]->stats.min_ticks / baseline; + + if (y < 1.) + y = -1./y + 1; + else + y -= 1; + + cairo_matrix_transform_point (m, &x, &y); + x = floor (x); + y = floor (y); + cairo_move_to (cr, x, last_y); + cairo_close_path (cr); + cairo_move_to (cr, x, y); + cairo_close_path (cr); + last_y = y; + + tests[i]++; + } + } + { + x = num_reports, y = 0; + cairo_matrix_transform_point (m, &x, &y); + x = floor (x); + cairo_move_to (cr, x, last_y); + cairo_close_path (cr); + } + cairo_set_source_rgba (cr, 0, 0, 0, .5); + cairo_set_dash (cr, dots, 2, 0.); + cairo_set_line_width (cr, 3.); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_stroke (cr); + cairo_restore (cr); + + cases++; + } + free (tests); +} + +static void +draw_hline (cairo_t *cr, + const cairo_matrix_t *m, + double y0, + double xmin, + double xmax) +{ + double x, y; + double py_offset; + + py_offset = fmod (cairo_get_line_width (cr) / 2., 1.); + + x = xmin; y = y0; + cairo_matrix_transform_point (m, &x, &y); + cairo_move_to (cr, floor (x), floor (y) + py_offset); + + x = xmax; y = y0; + cairo_matrix_transform_point (m, &x, &y); + cairo_line_to (cr, ceil (x), floor (y) + py_offset); + + cairo_stroke (cr); +} + +static void +draw_label (cairo_t *cr, + const cairo_matrix_t *m, + double y0, + double xmin, + double xmax) +{ + double x, y; + char buf[80]; + cairo_text_extents_t extents; + + snprintf (buf, sizeof (buf), "%.0fx", fabs (y0)); + cairo_text_extents (cr, buf, &extents); + + x = xmin; y = y0; + cairo_matrix_transform_point (m, &x, &y); + cairo_move_to (cr, + x - extents.width - 4, + y - (extents.height/2. + extents.y_bearing)); + cairo_show_text (cr, buf); + + + snprintf (buf, sizeof (buf), "%.0fx", fabs (y0)); + cairo_text_extents (cr, buf, &extents); + + x = xmax; y = y0; + cairo_matrix_transform_point (m, &x, &y); + cairo_move_to (cr, + x + 4, + y - (extents.height/2. + extents.y_bearing)); + cairo_show_text (cr, buf); +} + +#define ALIGN_X(v) ((v)<<0) +#define ALIGN_Y(v) ((v)<<2) +static void +draw_rotated_label (cairo_t *cr, + const char *text, + double x, + double y, + double angle, + int align) +{ + cairo_text_extents_t extents; + + cairo_text_extents (cr, text, &extents); + + cairo_save (cr); { + cairo_translate (cr, x, y); + cairo_rotate (cr, angle); + switch (align) { + case ALIGN_X(0) | ALIGN_Y(0): + cairo_move_to (cr, + -extents.x_bearing, + -extents.y_bearing); + break; + case ALIGN_X(0) | ALIGN_Y(1): + cairo_move_to (cr, + -extents.x_bearing, + - (extents.height/2. + extents.y_bearing)); + break; + case ALIGN_X(0) | ALIGN_Y(2): + cairo_move_to (cr, + -extents.x_bearing, + - (extents.height + extents.y_bearing)); + break; + + case ALIGN_X(1) | ALIGN_Y(0): + cairo_move_to (cr, + - (extents.width/2. + extents.x_bearing), + -extents.y_bearing); + break; + case ALIGN_X(1) | ALIGN_Y(1): + cairo_move_to (cr, + - (extents.width/2. + extents.x_bearing), + - (extents.height/2. + extents.y_bearing)); + break; + case ALIGN_X(1) | ALIGN_Y(2): + cairo_move_to (cr, + - (extents.width/2. + extents.x_bearing), + - (extents.height + extents.y_bearing)); + break; + + case ALIGN_X(2) | ALIGN_Y(0): + cairo_move_to (cr, + - (extents.width + extents.x_bearing), + -extents.y_bearing); + break; + case ALIGN_X(2) | ALIGN_Y(1): + cairo_move_to (cr, + - (extents.width + extents.x_bearing), + - (extents.height/2. + extents.y_bearing)); + break; + case ALIGN_X(2) | ALIGN_Y(2): + cairo_move_to (cr, + - (extents.width + extents.x_bearing), + - (extents.height + extents.y_bearing)); + break; + } + cairo_show_text (cr, text); + } cairo_restore (cr); +} + +#define PAD 36 +static void +graph_view_draw (GraphView *self, + cairo_t *cr) +{ + cairo_matrix_t m; + const double dash[2] = {4, 4}; + double range; + int i; + + if (self->widget.allocation.width < 4 *PAD) + return; + if (self->widget.allocation.height < 3 *PAD) + return; + + range = floor (self->ymax+1) - ceil (self->ymin-1); + + cairo_matrix_init_translate (&m, PAD, self->widget.allocation.height - PAD); + cairo_matrix_scale (&m, + (self->widget.allocation.width-2*PAD)/(self->num_reports), + -(self->widget.allocation.height-2*PAD)/range); + cairo_matrix_translate (&m, 0, floor (self->ymax+1)); + + if (self->selected_report != -1) { + cairo_save (cr); { + double x0, x1, y; + x0 = self->selected_report; y = 0; + cairo_matrix_transform_point (&m, &x0, &y); + x0 = floor (x0); + x1 = self->selected_report + 1; y = 0; + cairo_matrix_transform_point (&m, &x1, &y); + x1 = ceil (x1); + y = (x1 - x0) / 8; + y = MIN (y, PAD / 2); + x0 -= y; + x1 += y; + cairo_rectangle (cr, x0, PAD/2, x1-x0, self->widget.allocation.height-2*PAD + PAD); + gdk_cairo_set_source_color (cr, &self->widget.style->base[GTK_STATE_SELECTED]); + cairo_fill (cr); + } cairo_restore (cr); + } + + cairo_save (cr); { + cairo_pattern_t *linear; + double x, y; + + gdk_cairo_set_source_color (cr, + &self->widget.style->fg[GTK_WIDGET_STATE (self)]); + cairo_set_line_width (cr, 2.); + draw_hline (cr, &m, 0, 0, self->num_reports); + + cairo_set_line_width (cr, 1.); + cairo_set_dash (cr, NULL, 0, 0); + + for (i = ceil (self->ymin-1); i <= floor (self->ymax+1); i++) { + if (i != 0) + draw_hline (cr, &m, i, 0, self->num_reports); + } + + cairo_set_font_size (cr, 11); + + linear = cairo_pattern_create_linear (0, PAD, 0, self->widget.allocation.height-2*PAD); + cairo_pattern_add_color_stop_rgb (linear, 0, 0, 1, 0); + cairo_pattern_add_color_stop_rgb (linear, 1, 1, 0, 0); + cairo_set_source (cr, linear); + cairo_pattern_destroy (linear); + + for (i = ceil (self->ymin-1); i <= floor (self->ymax+1); i++) { + if (i != 0) + draw_label (cr, &m, i, 0, self->num_reports); + } + + x = 0, y = floor (self->ymax+1); + cairo_matrix_transform_point (&m, &x, &y); + draw_rotated_label (cr, "Faster", x - 7, y + 14, + 270./360 * 2 * G_PI, + ALIGN_X(2) | ALIGN_Y(1)); + x = self->num_reports, y = floor (self->ymax+1); + cairo_matrix_transform_point (&m, &x, &y); + draw_rotated_label (cr, "Faster", x + 11, y + 14, + 270./360 * 2 * G_PI, + ALIGN_X(2) | ALIGN_Y(1)); + + x = 0, y = ceil (self->ymin-1); + cairo_matrix_transform_point (&m, &x, &y); + draw_rotated_label (cr, "Slower", x - 7, y - 14, + 90./360 * 2 * G_PI, + ALIGN_X(2) | ALIGN_Y(1)); + x = self->num_reports, y = ceil (self->ymin-1); + cairo_matrix_transform_point (&m, &x, &y); + draw_rotated_label (cr, "Slower", x + 11, y - 14, + 90./360 * 2 * G_PI, + ALIGN_X(2) | ALIGN_Y(1)); + } cairo_restore (cr); + + draw_baseline_performance (self->cases, + self->reports, self->num_reports, + cr, &m); + + cairo_save (cr); { + cairo_set_source_rgb (cr, 0.7, 0.7, 0.7); + cairo_set_line_width (cr, 1.); + cairo_set_dash (cr, dash, 2, 0); + draw_hline (cr, &m, 0, 0, self->num_reports); + } cairo_restore (cr); +} + +static gboolean +graph_view_expose (GtkWidget *w, + GdkEventExpose *ev) +{ + GraphView *self = (GraphView *) w; + cairo_t *cr; + + cr = gdk_cairo_create (w->window); + gdk_cairo_set_source_color (cr, &w->style->base[GTK_WIDGET_STATE (w)]); + cairo_paint (cr); + + graph_view_draw (self, cr); + + cairo_destroy (cr); + + return FALSE; +} + +static gboolean +graph_view_button_press (GtkWidget *w, + GdkEventButton *ev) +{ + GraphView *self = (GraphView *) w; + cairo_matrix_t m; + double x,y; + int i; + + cairo_matrix_init_translate (&m, PAD, self->widget.allocation.height-PAD); + cairo_matrix_scale (&m, (self->widget.allocation.width-2*PAD)/self->num_reports, -(self->widget.allocation.height-2*PAD)/(self->ymax - self->ymin)); + cairo_matrix_translate (&m, 0, -self->ymin); + cairo_matrix_invert (&m); + + x = ev->x; + y = ev->y; + cairo_matrix_transform_point (&m, &x, &y); + + i = floor (x); + if (i < 0 || i >= self->num_reports) + i = -1; + + if (i != self->selected_report) { + self->selected_report = i; + gtk_widget_queue_draw (w); + + g_signal_emit (w, signals[REPORT_SELECTED], 0, i); + } + + return FALSE; +} + +static gboolean +graph_view_button_release (GtkWidget *w, + GdkEventButton *ev) +{ + return FALSE; +} + +static void +graph_view_realize (GtkWidget *widget) +{ + GdkWindowAttr attributes; + + GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); + + attributes.window_type = GDK_WINDOW_CHILD; + attributes.x = widget->allocation.x; + attributes.y = widget->allocation.y; + attributes.width = widget->allocation.width; + attributes.height = widget->allocation.height; + attributes.wclass = GDK_INPUT_OUTPUT; + attributes.visual = gtk_widget_get_visual (widget); + attributes.colormap = gtk_widget_get_colormap (widget); + attributes.event_mask = gtk_widget_get_events (widget) | + GDK_BUTTON_PRESS_MASK | + GDK_BUTTON_RELEASE_MASK | + GDK_EXPOSURE_MASK; + + widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), + &attributes, + GDK_WA_X | GDK_WA_Y | + GDK_WA_VISUAL | GDK_WA_COLORMAP); + gdk_window_set_user_data (widget->window, widget); + + widget->style = gtk_style_attach (widget->style, widget->window); + gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL); +} + +static void +graph_view_finalize (GObject *obj) +{ + G_OBJECT_CLASS (graph_view_parent_class)->finalize (obj); +} + +static void +graph_view_class_init (GraphViewClass *klass) +{ + GObjectClass *object_class = (GObjectClass *) klass; + GtkWidgetClass *widget_class = (GtkWidgetClass *) klass; + + object_class->finalize = graph_view_finalize; + + widget_class->realize = graph_view_realize; + widget_class->expose_event = graph_view_expose; + widget_class->button_press_event = graph_view_button_press; + widget_class->button_release_event = graph_view_button_release; + + signals[REPORT_SELECTED] = + g_signal_new ("report-selected", + G_TYPE_FROM_CLASS (object_class), + G_SIGNAL_RUN_FIRST, + 0,//G_STRUCT_OFFSET (GraphView, report_selected), + NULL, NULL, + g_cclosure_marshal_VOID__INT, + G_TYPE_NONE, 1, G_TYPE_INT); +} + +static void +graph_view_init (GraphView *self) +{ + self->selected_report = -1; +} + +GtkWidget * +graph_view_new (void) +{ + return g_object_new (graph_view_get_type (), NULL); +} + +void +graph_view_update_visible (GraphView *gv) +{ + double min, max; + test_case_t *cases; + + cases = gv->cases; + + min = max = 1.; + while (cases->name != NULL) { + if (cases->shown) { + if (cases->min < min) + min = cases->min; + if (cases->max > max) + max = cases->max; + } + cases++; + } + gv->ymin = -1/min + 1; + gv->ymax = max - 1; + + gtk_widget_queue_draw (&gv->widget); +} + +void +graph_view_set_reports (GraphView *gv, + test_case_t *cases, + cairo_perf_report_t *reports, + int num_reports) +{ + /* XXX ownership? */ + gv->cases = cases; + gv->reports = reports; + gv->num_reports = num_reports; + + graph_view_update_visible (gv); +} diff --git a/local/recipes/libs/cairo/source/perf/cairo-perf-graph.h b/local/recipes/libs/cairo/source/perf/cairo-perf-graph.h new file mode 100644 index 0000000000..4cb62165f8 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-perf-graph.h @@ -0,0 +1,63 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of the + * copyright holders not be used in advertising or publicity + * pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied + * warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Authors: Chris Wilson + */ + +#ifndef CAIRO_PERF_GRAPH_H +#define CAIRO_PERF_GRAPH_H + +#include + +#include "cairo-perf.h" + +typedef struct _test_case { + const char *backend; + const char *content; + const char *name; + int size; + + test_report_t *min_test; + + cairo_bool_t shown; + double baseline; + double min, max; + GdkColor color; +} test_case_t; + +typedef struct _GraphView GraphView; + +GtkWidget * +graph_view_new (void); + +void +graph_view_set_reports (GraphView *gv, + test_case_t *tests, + cairo_perf_report_t *reports, + int num_reports); + +void +graph_view_update_visible (GraphView *gv); + +#endif diff --git a/local/recipes/libs/cairo/source/perf/cairo-perf-micro.c b/local/recipes/libs/cairo/source/perf/cairo-perf-micro.c new file mode 100644 index 0000000000..618272ec56 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-perf-micro.c @@ -0,0 +1,592 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2006 Mozilla Corporation + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the authors not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The authors make no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Vladimir Vukicevic + * Carl Worth + */ + +#include "config.h" + +#include "cairo-perf.h" +#include "cairo-stats.h" + +#include "cairo-boilerplate-getopt.h" + +/* For basename */ +#ifdef HAVE_LIBGEN_H +#include +#endif + +#if HAVE_FCFINI +#include +#endif + +#ifdef HAVE_SCHED_H +#include +#endif + +#define CAIRO_PERF_ITERATIONS_DEFAULT 100 +#define CAIRO_PERF_LOW_STD_DEV 0.03 +#define CAIRO_PERF_STABLE_STD_DEV_COUNT 5 +#define CAIRO_PERF_ITERATION_MS_DEFAULT 2000 +#define CAIRO_PERF_ITERATION_MS_FAST 5 + +typedef struct _cairo_perf_case { + CAIRO_PERF_RUN_DECL (*run); + cairo_bool_t (*enabled) (cairo_perf_t *perf); + unsigned int min_size; + unsigned int max_size; +} cairo_perf_case_t; + +const cairo_perf_case_t perf_cases[]; + +static const char * +_content_to_string (cairo_content_t content, + cairo_bool_t similar) +{ + switch (content|similar) { + case CAIRO_CONTENT_COLOR: + return "rgb"; + case CAIRO_CONTENT_COLOR|1: + return "rgb&"; + case CAIRO_CONTENT_ALPHA: + return "a"; + case CAIRO_CONTENT_ALPHA|1: + return "a&"; + case CAIRO_CONTENT_COLOR_ALPHA: + return "rgba"; + case CAIRO_CONTENT_COLOR_ALPHA|1: + return "rgba&"; + default: + return ""; + } +} + +static cairo_bool_t +cairo_perf_has_similar (cairo_perf_t *perf) +{ + cairo_surface_t *target; + + if (getenv ("CAIRO_TEST_SIMILAR") == NULL) + return FALSE; + + /* exclude the image backend */ + target = cairo_get_target (perf->cr); + if (cairo_surface_get_type (target) == CAIRO_SURFACE_TYPE_IMAGE) + return FALSE; + + return TRUE; +} + +cairo_bool_t +cairo_perf_can_run (cairo_perf_t *perf, + const char *name, + cairo_bool_t *is_explicit) +{ + unsigned int i; + + if (is_explicit) + *is_explicit = FALSE; + + if (perf->num_names == 0) + return TRUE; + + for (i = 0; i < perf->num_names; i++) { + if (strstr (name, perf->names[i])) { + if (is_explicit) + *is_explicit = FALSE; + return TRUE; + } + } + + return FALSE; +} + +static unsigned +cairo_perf_calibrate (cairo_perf_t *perf, + cairo_perf_func_t perf_func) +{ + cairo_time_t calibration, calibration_max; + unsigned loops, min_loops; + + min_loops = 1; + calibration = perf_func (perf->cr, perf->size, perf->size, min_loops); + + if (!perf->fast_and_sloppy) { + calibration_max = _cairo_time_from_s (perf->ms_per_iteration * 0.0001 / 4); + while (calibration < calibration_max) { + min_loops *= 2; + calibration = perf_func (perf->cr, perf->size, perf->size, min_loops); + } + } + + /* XXX + * Compute the number of loops required for the timing + * interval to be perf->ms_per_iteration milliseconds. This + * helps to eliminate sampling variance due to timing and + * other systematic errors. However, it also hides + * synchronisation overhead as we attempt to process a large + * batch of identical operations in a single shot. This can be + * considered both good and bad... It would be good to perform + * a more rigorous analysis of the synchronisation overhead, + * that is to estimate the time for loop=0. + */ + loops = _cairo_time_from_s (perf->ms_per_iteration * 0.001 * min_loops / calibration); + min_loops = perf->fast_and_sloppy ? 1 : 10; + if (loops < min_loops) + loops = min_loops; + + return loops; +} + +void +cairo_perf_run (cairo_perf_t *perf, + const char *name, + cairo_perf_func_t perf_func, + cairo_count_func_t count_func) +{ + static cairo_bool_t first_run = TRUE; + unsigned int i, similar, similar_iters; + cairo_time_t *times; + cairo_stats_t stats = {0.0, 0.0}; + int low_std_dev_count; + + if (perf->list_only) { + printf ("%s\n", name); + return; + } + + if (first_run) { + if (perf->raw) { + printf ("[ # ] %s.%-s %s %s %s ...\n", + "backend", "content", "test-size", "ticks-per-ms", "time(ticks)"); + } + + if (perf->summary) { + fprintf (perf->summary, + "[ # ] %8s.%-4s %28s %8s %8s %5s %5s %s %s\n", + "backend", "content", "test-size", "min(ticks)", "min(ms)", "median(ms)", + "stddev.", "iterations", "overhead"); + } + first_run = FALSE; + } + + times = perf->times; + + if (getenv ("CAIRO_PERF_OUTPUT") != NULL) { /* check output */ + char *filename; + cairo_status_t status; + + xasprintf (&filename, "%s.%s.%s.%d.out.png", + name, perf->target->name, + _content_to_string (perf->target->content, 0), + perf->size); + cairo_save (perf->cr); + perf_func (perf->cr, perf->size, perf->size, 1); + cairo_restore (perf->cr); + status = cairo_surface_write_to_png (cairo_get_target (perf->cr), filename); + if (status) { + fprintf (stderr, "Failed to generate output check '%s': %s\n", + filename, cairo_status_to_string (status)); + return; + } + + free (filename); + } + + if (cairo_perf_has_similar (perf)) + similar_iters = 2; + else + similar_iters = 1; + + for (similar = 0; similar < similar_iters; similar++) { + unsigned loops; + + if (perf->summary) { + fprintf (perf->summary, + "[%3d] %8s.%-5s %26s.%-3d ", + perf->test_number, perf->target->name, + _content_to_string (perf->target->content, similar), + name, perf->size); + fflush (perf->summary); + } + + /* We run one iteration in advance to warm caches and calibrate. */ + cairo_perf_yield (); + if (similar) + cairo_push_group_with_content (perf->cr, + cairo_boilerplate_content (perf->target->content)); + else + cairo_save (perf->cr); + perf_func (perf->cr, perf->size, perf->size, 1); + loops = cairo_perf_calibrate (perf, perf_func); + if (similar) + cairo_pattern_destroy (cairo_pop_group (perf->cr)); + else + cairo_restore (perf->cr); + + low_std_dev_count = 0; + for (i =0; i < perf->iterations; i++) { + cairo_perf_yield (); + if (similar) + cairo_push_group_with_content (perf->cr, + cairo_boilerplate_content (perf->target->content)); + else + cairo_save (perf->cr); + times[i] = perf_func (perf->cr, perf->size, perf->size, loops) ; + if (similar) + cairo_pattern_destroy (cairo_pop_group (perf->cr)); + else + cairo_restore (perf->cr); + if (perf->raw) { + if (i == 0) + printf ("[*] %s.%s %s.%d %g", + perf->target->name, + _content_to_string (perf->target->content, similar), + name, perf->size, + _cairo_time_to_double (_cairo_time_from_s (1.)) / 1000.); + printf (" %lld", (long long) (times[i] / (double) loops)); + } else if (! perf->exact_iterations) { + if (i > 0) { + _cairo_stats_compute (&stats, times, i+1); + + if (stats.std_dev <= CAIRO_PERF_LOW_STD_DEV) { + low_std_dev_count++; + if (low_std_dev_count >= CAIRO_PERF_STABLE_STD_DEV_COUNT) + break; + } else { + low_std_dev_count = 0; + } + } + } + } + + if (perf->raw) + printf ("\n"); + + if (perf->summary) { + _cairo_stats_compute (&stats, times, i); + if (count_func != NULL) { + double count = count_func (perf->cr, perf->size, perf->size); + fprintf (perf->summary, + "%.3f [%10lld/%d] %#8.3f %#8.3f %#5.2f%% %3d: %.2f\n", + stats.min_ticks /(double) loops, + (long long) stats.min_ticks, loops, + _cairo_time_to_s (stats.min_ticks) * 1000.0 / loops, + _cairo_time_to_s (stats.median_ticks) * 1000.0 / loops, + stats.std_dev * 100.0, stats.iterations, + count / _cairo_time_to_s (stats.min_ticks)); + } else { + fprintf (perf->summary, + "%.3f [%10lld/%d] %#8.3f %#8.3f %#5.2f%% %3d\n", + stats.min_ticks /(double) loops, + (long long) stats.min_ticks, loops, + _cairo_time_to_s (stats.min_ticks) * 1000.0 / loops, + _cairo_time_to_s (stats.median_ticks) * 1000.0 / loops, + stats.std_dev * 100.0, stats.iterations); + } + fflush (perf->summary); + } + + perf->test_number++; + } +} + +static void +usage (const char *argv0) +{ + fprintf (stderr, +"Usage: %s [-flrv] [-i iterations] [test-names ...]\n" +"\n" +"Run the cairo performance test suite over the given tests (all by default)\n" +"The command-line arguments are interpreted as follows:\n" +"\n" +" -f fast; faster, less accurate\n" +" -i iterations; specify the number of iterations per test case\n" +" -l list only; just list selected test case names without executing\n" +" -r raw; display each time measurement instead of summary statistics\n" +" -v verbose; in raw mode also show the summaries\n" +"\n" +"If test names are given they are used as sub-string matches so a command\n" +"such as \"%s text\" can be used to run all text test cases.\n", + argv0, argv0); +} + +static void +parse_options (cairo_perf_t *perf, + int argc, + char *argv[]) +{ + int c; + const char *iters; + const char *ms = NULL; + char *end; + int verbose = 0; + + if ((iters = getenv("CAIRO_PERF_ITERATIONS")) && *iters) + perf->iterations = strtol(iters, NULL, 0); + else + perf->iterations = CAIRO_PERF_ITERATIONS_DEFAULT; + perf->exact_iterations = 0; + + perf->fast_and_sloppy = FALSE; + perf->ms_per_iteration = CAIRO_PERF_ITERATION_MS_DEFAULT; + if ((ms = getenv("CAIRO_PERF_ITERATION_MS")) && *ms) { + perf->ms_per_iteration = atof(ms); + } + + perf->raw = FALSE; + perf->list_only = FALSE; + perf->names = NULL; + perf->num_names = 0; + perf->summary = stdout; + + while (1) { + c = _cairo_getopt (argc, argv, "fi:lrv"); + if (c == -1) + break; + + switch (c) { + case 'f': + perf->fast_and_sloppy = TRUE; + if (ms == NULL) + perf->ms_per_iteration = CAIRO_PERF_ITERATION_MS_FAST; + break; + case 'i': + perf->exact_iterations = TRUE; + perf->iterations = strtoul (optarg, &end, 10); + if (*end != '\0') { + fprintf (stderr, "Invalid argument for -i (not an integer): %s\n", + optarg); + exit (1); + } + break; + case 'l': + perf->list_only = TRUE; + break; + case 'r': + perf->raw = TRUE; + perf->summary = NULL; + break; + case 'v': + verbose = 1; + break; + default: + fprintf (stderr, "Internal error: unhandled option: %c\n", c); + /* fall-through */ + case '?': + usage (argv[0]); + exit (1); + } + } + + if (verbose && perf->summary == NULL) + perf->summary = stderr; + + if (optind < argc) { + perf->names = &argv[optind]; + perf->num_names = argc - optind; + } +} + +static int +check_cpu_affinity (void) +{ +#ifdef HAVE_SCHED_GETAFFINITY + + cpu_set_t affinity; + int i, cpu_count; + + if (sched_getaffinity(0, sizeof(affinity), &affinity)) { + perror("sched_getaffinity"); + return -1; + } + + for(i = 0, cpu_count = 0; i < CPU_SETSIZE; ++i) { + if (CPU_ISSET(i, &affinity)) + ++cpu_count; + } + + if (cpu_count > 1) { + fputs( + "WARNING: cairo-perf has not been bound to a single CPU.\n", + stderr); + return -1; + } + + return 0; +#else + fputs( + "WARNING: Cannot check CPU affinity for this platform.\n", + stderr); + return -1; +#endif +} + +static void +cairo_perf_fini (cairo_perf_t *perf) +{ + cairo_boilerplate_free_targets (perf->targets); + cairo_boilerplate_fini (); + + free (perf->times); + cairo_debug_reset_static_data (); +#if HAVE_FCFINI + FcFini (); +#endif +} + + +int +main (int argc, + char *argv[]) +{ + int i, j; + cairo_perf_t perf; + cairo_surface_t *surface; + + parse_options (&perf, argc, argv); + + if (check_cpu_affinity()) { + fputs( + "NOTICE: cairo-perf and the X server should be bound to CPUs (either the same\n" + "or separate) on SMP systems. Not doing so causes random results when the X\n" + "server is moved to or from cairo-perf's CPU during the benchmarks:\n" + "\n" + " $ sudo taskset -cp 0 $(pidof X)\n" + " $ taskset -cp 1 $$\n" + "\n" + "See taskset(1) for information about changing CPU affinity.\n", + stderr); + } + + perf.targets = cairo_boilerplate_get_targets (&perf.num_targets, NULL); + perf.times = xmalloc (perf.iterations * sizeof (cairo_time_t)); + + for (i = 0; i < perf.num_targets; i++) { + const cairo_boilerplate_target_t *target = perf.targets[i]; + + if (! target->is_measurable) + continue; + + perf.target = target; + perf.test_number = 0; + + for (j = 0; perf_cases[j].run; j++) { + const cairo_perf_case_t *perf_case = &perf_cases[j]; + + if (! perf_case->enabled (&perf)) + continue; + + for (perf.size = perf_case->min_size; + perf.size <= perf_case->max_size; + perf.size *= 2) + { + void *closure; + + surface = (target->create_surface) (NULL, + target->content, + perf.size, perf.size, + perf.size, perf.size, + CAIRO_BOILERPLATE_MODE_PERF, + &closure); + if (surface == NULL) { + fprintf (stderr, + "Error: Failed to create target surface: %s\n", + target->name); + continue; + } + + cairo_perf_timer_set_synchronize (target->synchronize, closure); + + perf.cr = cairo_create (surface); + + perf_case->run (&perf, perf.cr, perf.size, perf.size); + + if (cairo_status (perf.cr)) { + fprintf (stderr, "Error: Test left cairo in an error state: %s\n", + cairo_status_to_string (cairo_status (perf.cr))); + } + + cairo_destroy (perf.cr); + cairo_surface_destroy (surface); + + if (target->cleanup) + target->cleanup (closure); + } + } + } + + cairo_perf_fini (&perf); + + return 0; +} + +#define FUNC(f) f, f##_enabled +const cairo_perf_case_t perf_cases[] = { + { FUNC(pixel), 1, 1 }, + { FUNC(a1_pixel), 1, 1 }, + { FUNC(paint), 64, 512}, + { FUNC(paint_with_alpha), 64, 512}, + { FUNC(fill), 64, 512}, + { FUNC(stroke), 64, 512}, + { FUNC(text), 64, 512}, + { FUNC(glyphs), 64, 512}, + { FUNC(mask), 64, 512}, + { FUNC(line), 32, 512}, + { FUNC(a1_line), 32, 512}, + { FUNC(curve), 32, 512}, + { FUNC(a1_curve), 32, 512}, + { FUNC(disjoint), 64, 512}, + { FUNC(hatching), 64, 512}, + { FUNC(tessellate), 100, 100}, + { FUNC(subimage_copy), 16, 512}, + { FUNC(hash_table), 16, 16}, + { FUNC(pattern_create_radial), 16, 16}, + { FUNC(zrusin), 415, 415}, + { FUNC(world_map), 800, 800}, + { FUNC(box_outline), 100, 100}, + { FUNC(mosaic), 800, 800 }, + { FUNC(long_lines), 100, 100}, + { FUNC(unaligned_clip), 100, 100}, + { FUNC(rectangles), 512, 512}, + { FUNC(rounded_rectangles), 512, 512}, + { FUNC(long_dashed_lines), 512, 512}, + { FUNC(composite_checker), 16, 512}, + { FUNC(twin), 800, 800}, + { FUNC(dragon), 1024, 1024 }, + { FUNC(sierpinski), 32, 1024 }, + { FUNC(pythagoras_tree), 768, 768 }, + { FUNC(intersections), 512, 512 }, + { FUNC(many_strokes), 32, 512 }, + { FUNC(wide_strokes), 32, 512 }, + { FUNC(many_fills), 32, 512 }, + { FUNC(wide_fills), 32, 512 }, + { FUNC(many_curves), 32, 512 }, + { FUNC(spiral), 512, 512 }, + { FUNC(wave), 500, 500 }, + { FUNC(fill_clip), 16, 512 }, + { FUNC(tiger), 16, 1024 }, + { NULL } +}; diff --git a/local/recipes/libs/cairo/source/perf/cairo-perf-print.c b/local/recipes/libs/cairo/source/perf/cairo-perf-print.c new file mode 100644 index 0000000000..e9c493fa30 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-perf-print.c @@ -0,0 +1,140 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of the + * copyright holders not be used in advertising or publicity + * pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied + * warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Authors: Carl Worth + * Chris Wilson + */ + +#include "config.h" + +#include "cairo-perf.h" +#include "cairo-stats.h" + +#include + +#if HAVE_UNISTD_H && HAVE_SYS_IOCTL_H +#define USE_TERMINAL_SIZE 1 +#else +#define USE_TERMINAL_SIZE 0 +#endif + +#if USE_TERMINAL_SIZE +#include +#include +#if HAVE_TERMIOS_H +#include +#endif +#endif + +static void +report_print (const cairo_perf_report_t *report, + int show_histogram) +{ + const test_report_t *test; + cairo_histogram_t h; + + if (show_histogram) { + int num_rows = 23; + int num_cols = 80; + +#if USE_TERMINAL_SIZE + int fd = fileno(stdout); + if (isatty(fd)) { + struct winsize ws; + + if(ioctl(fd, TIOCGWINSZ, &ws) == 0 ) { + num_rows = ws.ws_row - 1; + num_cols = ws.ws_col; + } + } +#endif + + if (!_cairo_histogram_init (&h, num_cols, num_rows)) + show_histogram = 0; + } + + for (test = report->tests; test->name != NULL; test++) { + if (test->stats.iterations == 0) + continue; + + if (show_histogram) { + const cairo_time_t *values; + int num_values; + + if (show_histogram > 1) { + values = test->stats.values; + num_values = test->stats.iterations; + } else { + values = test->samples; + num_values = test->samples_count; + } + + if (_cairo_histogram_compute (&h, values, num_values)) + _cairo_histogram_printf (&h, stdout); + } + + if (test->size) { + printf ("%5s-%-4s %26s-%-3d ", + test->backend, test->content, + test->name, test->size); + } else { + printf ("%5s %26s ", test->backend, test->name); + } + printf("%6.2f %4.2f%% (%d/%d)\n", + test->stats.median_ticks / test->stats.ticks_per_ms, + test->stats.std_dev * 100, + test->stats.iterations, test->samples_count); + } + + if (show_histogram) + _cairo_histogram_fini (&h); +} + +int +main (int argc, + const char *argv[]) +{ + cairo_bool_t show_histogram = 0; + int i; + + for (i = 1; i < argc; i++ ) { + cairo_perf_report_t report; + + if (strcmp(argv[i], "--histogram") == 0) { + show_histogram = 1; + continue; + } + + if (strcmp(argv[i], "--short-histogram") == 0) { + show_histogram = 2; + continue; + } + + cairo_perf_report_load (&report, argv[i], i, NULL); + report_print (&report, show_histogram); + } + + return 0; +} diff --git a/local/recipes/libs/cairo/source/perf/cairo-perf-report.c b/local/recipes/libs/cairo/source/perf/cairo-perf-report.c new file mode 100644 index 0000000000..163368fee1 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-perf-report.c @@ -0,0 +1,458 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of the + * copyright holders not be used in advertising or publicity + * pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied + * warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Authors: Carl Worth + */ + +#include "config.h" + +#define _GETDELIM 1/* for getline() on AIX */ + +#include "cairo-perf.h" +#include "cairo-missing.h" +#include "cairo-stats.h" +#include "cairo-ctype-inline.h" + +#include +#include +#include +#include +#include +#include +#include +#ifdef HAVE_LIBGEN_H +#include +#endif + +#ifdef _MSC_VER +#if _MSC_VER < 1800 +static long long +strtoll (const char *nptr, + char **endptr, + int base); +#endif + +static char * +basename (char *path); +#endif + +/* Ad-hoc parsing, macros with a strong dependence on the calling + * context, and plenty of other ugliness is here. But at least it's + * not perl... */ +#define parse_error(...) fprintf(stderr, __VA_ARGS__); return TEST_REPORT_STATUS_ERROR; +#define skip_char(c) \ +do { \ + if (*s && *s == (c)) { \ + s++; \ + } else { \ + parse_error ("expected '%c' but found '%c'", c, *s); \ + } \ +} while (0) +#define skip_space() while (*s && (*s == ' ' || *s == '\t')) s++; +#define parse_int(result) \ +do { \ + (result) = strtol (s, &end, 10); \ + if (*s && end != s) { \ + s = end; \ + } else { \ + parse_error("expected integer but found %s", s); \ + } \ +} while (0) +#define parse_long_long(result) \ +do { \ + (result) = strtoll (s, &end, 10); \ + if (*s && end != s) { \ + s = end; \ + } else { \ + parse_error("expected integer but found %s", s); \ + } \ +} while (0) +#define parse_double(result) \ +do { \ + (result) = strtod (s, &end); \ + if (*s && end != s) { \ + s = end; \ + } else { \ + parse_error("expected floating-point value but found %s", s); \ + } \ +} while (0) +/* Here a string is simply a sequence of non-whitespace */ +#define parse_string(result) \ +do { \ + for (end = s; *end; end++) \ + if (_cairo_isspace (*end)) \ + break; \ + (result) = strndup (s, end - s); \ + if ((result) == NULL) { \ + fprintf (stderr, "Out of memory.\n"); \ + exit (1); \ + } \ + s = end; \ +} while (0) + +static test_report_status_t +test_report_parse (test_report_t *report, + int fileno, + char *line, + char *configuration) +{ + char *end; + char *s = line; + cairo_bool_t is_raw = FALSE; + double min_time, median_time; + + /* The code here looks funny unless you understand that these are + * all macro calls, (and then the code just looks sick). */ + if (*s == '\n') + return TEST_REPORT_STATUS_COMMENT; + + skip_char ('['); + skip_space (); + if (*s == '#') + return TEST_REPORT_STATUS_COMMENT; + if (*s == '*') { + s++; + is_raw = TRUE; + } else { + parse_int (report->id); + } + skip_char (']'); + + skip_space (); + + report->fileno = fileno; + report->configuration = configuration; + parse_string (report->backend); + end = strrchr (report->backend, '.'); + if (end) + *end++ = '\0'; + report->content = end ? end : xstrdup ("???"); + + skip_space (); + + parse_string (report->name); + end = strrchr (report->name, '.'); + if (end) + *end++ = '\0'; + report->size = end ? atoi (end) : 0; + + skip_space (); + + report->samples = NULL; + report->samples_size = 0; + report->samples_count = 0; + + if (is_raw) { + parse_double (report->stats.ticks_per_ms); + skip_space (); + + report->samples_size = 5; + report->samples = xmalloc (report->samples_size * sizeof (cairo_time_t)); + report->stats.min_ticks = 0; + do { + if (report->samples_count == report->samples_size) { + report->samples_size *= 2; + report->samples = xrealloc (report->samples, + report->samples_size * sizeof (cairo_time_t)); + } + parse_long_long (report->samples[report->samples_count]); + if (report->samples_count == 0) { + report->stats.min_ticks = + report->samples[report->samples_count]; + } else if (report->stats.min_ticks > + report->samples[report->samples_count]){ + report->stats.min_ticks = + report->samples[report->samples_count]; + } + report->samples_count++; + skip_space (); + } while (*s && *s != '\n'); + report->stats.iterations = 0; + if (*s) skip_char ('\n'); + } else { + parse_double (report->stats.min_ticks); + skip_space (); + + parse_double (min_time); + report->stats.ticks_per_ms = report->stats.min_ticks / min_time; + + skip_space (); + + parse_double (median_time); + report->stats.median_ticks = median_time * report->stats.ticks_per_ms; + + skip_space (); + + parse_double (report->stats.std_dev); + report->stats.std_dev /= 100.0; + skip_char ('%'); + + skip_space (); + + parse_int (report->stats.iterations); + + skip_space (); + skip_char ('\n'); + } + + return TEST_REPORT_STATUS_SUCCESS; +} + +/* We provide hereafter a win32 implementation of the basename + * and strtoll functions which are not available otherwise. + * The basename function is fully compliant to its GNU specs. + */ +#ifdef _MSC_VER + +#if _MSC_VER < 1800 +long long +strtoll (const char *nptr, + char **endptr, + int base) +{ + return _atoi64(nptr); +} +#endif + +static char * +basename (char *path) +{ + char *end, *s; + + end = (path + strlen(path) - 1); + while (end && (end >= path + 1) && (*end == '/')) { + *end = '\0'; + end--; + } + + s = strrchr(path, '/'); + if (s) { + if (s == end) { + return s; + } else { + return s+1; + } + } else { + return path; + } +} +#endif /* ifndef _MSC_VER */ + +int +test_report_cmp_backend_then_name (const void *a, + const void *b) +{ + const test_report_t *a_test = a; + const test_report_t *b_test = b; + + int cmp; + + cmp = strcmp (a_test->backend, b_test->backend); + if (cmp) + return cmp; + + cmp = strcmp (a_test->content, b_test->content); + if (cmp) + return cmp; + + /* A NULL name is a list-termination marker, so force it last. */ + if (a_test->name == NULL) + if (b_test->name == NULL) + return 0; + else + return 1; + else if (b_test->name == NULL) + return -1; + + cmp = strcmp (a_test->name, b_test->name); + if (cmp) + return cmp; + + if (a_test->size < b_test->size) + return -1; + if (a_test->size > b_test->size) + return 1; + + return 0; +} + +int +test_report_cmp_name (const void *a, + const void *b) +{ + const test_report_t *a_test = a; + const test_report_t *b_test = b; + + int cmp; + + /* A NULL name is a list-termination marker, so force it last. */ + if (a_test->name == NULL) + if (b_test->name == NULL) + return 0; + else + return 1; + else if (b_test->name == NULL) + return -1; + + cmp = strcmp (a_test->name, b_test->name); + if (cmp) + return cmp; + + if (a_test->size < b_test->size) + return -1; + if (a_test->size > b_test->size) + return 1; + + return 0; +} + +void +cairo_perf_report_sort_and_compute_stats (cairo_perf_report_t *report, + int (*cmp) (const void*, const void*)) +{ + test_report_t *base, *next, *last, *t; + + if (cmp == NULL) + cmp = test_report_cmp_backend_then_name; + + /* First we sort, since the diff needs both lists in the same + * order */ + qsort (report->tests, report->tests_count, sizeof (test_report_t), cmp); + + /* The sorting also brings all related raw reports together so we + * can condense them and compute the stats. + */ + base = &report->tests[0]; + last = &report->tests[report->tests_count - 1]; + while (base <= last) { + next = base+1; + if (next <= last) { + while (next <= last && + test_report_cmp_backend_then_name (base, next) == 0) + { + next++; + } + if (next != base) { + unsigned int new_samples_count = base->samples_count; + for (t = base + 1; t < next; t++) + new_samples_count += t->samples_count; + if (new_samples_count > base->samples_size) { + base->samples_size = new_samples_count; + base->samples = xrealloc (base->samples, + base->samples_size * sizeof (cairo_time_t)); + } + for (t = base + 1; t < next; t++) { + memcpy (&base->samples[base->samples_count], t->samples, + t->samples_count * sizeof (cairo_time_t)); + base->samples_count += t->samples_count; + } + } + } + if (base->samples) + _cairo_stats_compute (&base->stats, base->samples, base->samples_count); + base = next; + } +} + +void +cairo_perf_report_load (cairo_perf_report_t *report, + const char *filename, int id, + int (*cmp) (const void *, const void *)) +{ + FILE *file; + test_report_status_t status; + int line_number = 0; + char *line = NULL; + size_t line_size = 0; + char *configuration; + char *dot; + char *baseName; + const char *name; + + name = filename; + if (name == NULL) + name = "stdin"; + + configuration = xstrdup (name); + baseName = basename (configuration); + report->configuration = xstrdup (baseName); + free (configuration); + + dot = strrchr (report->configuration, '.'); + if (dot) + *dot = '\0'; + + report->name = name; + report->tests_size = 16; + report->tests = xmalloc (report->tests_size * sizeof (test_report_t)); + report->tests_count = 0; + report->fileno = id; + + if (filename == NULL) { + file = stdin; + } else { + file = fopen (filename, "r"); + if (file == NULL) { + fprintf (stderr, "Failed to open %s: %s\n", + filename, strerror (errno)); + exit (1); + } + } + + while (1) { + if (report->tests_count == report->tests_size) { + report->tests_size *= 2; + report->tests = xrealloc (report->tests, + report->tests_size * sizeof (test_report_t)); + } + + line_number++; + if (getline (&line, &line_size, file) == -1) + break; + + status = test_report_parse (&report->tests[report->tests_count], + id, line, report->configuration); + if (status == TEST_REPORT_STATUS_ERROR) + fprintf (stderr, "Ignoring unrecognized line %d of %s:\n%s", + line_number, filename, line); + if (status == TEST_REPORT_STATUS_SUCCESS) + report->tests_count++; + /* Do nothing on TEST_REPORT_STATUS_COMMENT */ + } + + free (line); + + if (filename != NULL) + fclose (file); + + cairo_perf_report_sort_and_compute_stats (report, cmp); + + /* Add one final report with a NULL name to terminate the list. */ + if (report->tests_count == report->tests_size) { + report->tests_size *= 2; + report->tests = xrealloc (report->tests, + report->tests_size * sizeof (test_report_t)); + } + report->tests[report->tests_count].name = NULL; +} diff --git a/local/recipes/libs/cairo/source/perf/cairo-perf-trace.c b/local/recipes/libs/cairo/source/perf/cairo-perf-trace.c new file mode 100644 index 0000000000..991a8a5e0f --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-perf-trace.c @@ -0,0 +1,1065 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2006 Mozilla Corporation + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the authors not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The authors make no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Vladimir Vukicevic + * Carl Worth + * Chris Wilson + */ + +#include "config.h" + +#include "cairo-missing.h" +#include "cairo-perf.h" +#include "cairo-stats.h" + +#include "cairo-boilerplate-getopt.h" +#include +#include /* for INTERNAL_SURFACE_TYPE */ + +/* rudely reuse bits of the library... */ +#include "../src/cairo-hash-private.h" +#include "../src/cairo-error-private.h" + +/* For basename */ +#ifdef HAVE_LIBGEN_H +#include +#endif +#include /* isspace() */ + +#include +#include + +#ifdef _MSC_VER +#include "dirent-win32.h" + +static char * +basename_no_ext (char *path) +{ + static char name[_MAX_FNAME + 1]; + + _splitpath (path, NULL, NULL, name, NULL); + + name[_MAX_FNAME] = '\0'; + + return name; +} + + +#else +#include + +static char * +basename_no_ext (char *path) +{ + char *dot, *name; + + name = basename (path); + + dot = strrchr (name, '.'); + if (dot) + *dot = '\0'; + + return name; +} + +#endif + +#if HAVE_UNISTD_H +#include +#endif + +#include + +#if HAVE_FCFINI +#include +#endif + +#define CAIRO_PERF_ITERATIONS_DEFAULT 15 +#define CAIRO_PERF_LOW_STD_DEV 0.05 +#define CAIRO_PERF_MIN_STD_DEV_COUNT 3 +#define CAIRO_PERF_STABLE_STD_DEV_COUNT 3 + +struct trace { + const cairo_boilerplate_target_t *target; + void *closure; + cairo_surface_t *surface; + cairo_bool_t observe; + int tile_size; +}; + +cairo_bool_t +cairo_perf_can_run (cairo_perf_t *perf, + const char *name, + cairo_bool_t *is_explicit) +{ + unsigned int i; + char *copy, *dot; + cairo_bool_t ret; + + if (is_explicit) + *is_explicit = FALSE; + + if (perf->exact_names) { + if (is_explicit) + *is_explicit = TRUE; + return TRUE; + } + + if (perf->num_names == 0 && perf->num_exclude_names == 0) + return TRUE; + + copy = xstrdup (name); + dot = strrchr (copy, '.'); + if (dot != NULL) + *dot = '\0'; + + if (perf->num_names) { + ret = TRUE; + for (i = 0; i < perf->num_names; i++) + if (strstr (copy, perf->names[i])) { + if (is_explicit) + *is_explicit = strcmp (copy, perf->names[i]) == 0; + goto check_exclude; + } + + ret = FALSE; + goto done; + } + +check_exclude: + if (perf->num_exclude_names) { + ret = FALSE; + for (i = 0; i < perf->num_exclude_names; i++) + if (strstr (copy, perf->exclude_names[i])) { + if (is_explicit) + *is_explicit = strcmp (copy, perf->exclude_names[i]) == 0; + goto done; + } + + ret = TRUE; + goto done; + } + +done: + free (copy); + + return ret; +} + +static void +fill_surface (cairo_surface_t *surface) +{ + cairo_t *cr = cairo_create (surface); + /* This needs to be an operation that the backends can't optimise away */ + cairo_set_source_rgba (cr, 0.5, 0.5, 0.5, 0.5); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_paint (cr); + cairo_destroy (cr); +} + +struct scache { + cairo_hash_entry_t entry; + cairo_content_t content; + int width, height; + cairo_surface_t *surface; +}; + +static cairo_hash_table_t *surface_cache; +static cairo_surface_t *surface_holdovers[16]; + +static cairo_bool_t +scache_equal (const void *A, + const void *B) +{ + const struct scache *a = A, *b = B; + return a->entry.hash == b->entry.hash; +} + +static void +scache_mark_active (cairo_surface_t *surface) +{ + cairo_surface_t *t0, *t1; + unsigned n; + + if (surface_cache == NULL) + return; + + t0 = cairo_surface_reference (surface); + for (n = 0; n < ARRAY_LENGTH (surface_holdovers); n++) { + if (surface_holdovers[n] == surface) { + surface_holdovers[n] = t0; + t0 = surface; + break; + } + + t1 = surface_holdovers[n]; + surface_holdovers[n] = t0; + t0 = t1; + } + cairo_surface_destroy (t0); +} + +static void +scache_clear (void) +{ + unsigned n; + + if (surface_cache == NULL) + return; + + for (n = 0; n < ARRAY_LENGTH (surface_holdovers); n++) { + cairo_surface_destroy (surface_holdovers[n]); + surface_holdovers[n] = NULL; + } +} + +static void +scache_remove (void *closure) +{ + _cairo_hash_table_remove (surface_cache, closure); + free (closure); +} + +static cairo_surface_t * +_similar_surface_create (void *closure, + cairo_content_t content, + double width, + double height, + long uid) +{ + struct trace *args = closure; + cairo_surface_t *surface; + struct scache skey, *s; + + if (args->observe) + return cairo_surface_create_similar (args->surface, + content, width, height); + + if (uid == 0 || surface_cache == NULL) + return args->target->create_similar (args->surface, content, width, height); + + skey.entry.hash = uid; + s = _cairo_hash_table_lookup (surface_cache, &skey.entry); + if (s != NULL) { + if (s->content == content && + s->width == width && + s->height == height) + { + return cairo_surface_reference (s->surface); + } + + /* The surface has been resized, allow the original entry to expire + * as it becomes inactive. + */ + } + + surface = args->target->create_similar (args->surface, content, width, height); + s = malloc (sizeof (struct scache)); + if (s == NULL) + return surface; + + s->entry.hash = uid; + s->content = content; + s->width = width; + s->height = height; + s->surface = surface; + if (_cairo_hash_table_insert (surface_cache, &s->entry)) { + free (s); + } else if (cairo_surface_set_user_data + (surface, + (const cairo_user_data_key_t *) &surface_cache, + s, scache_remove)) + { + scache_remove (s); + } + + return surface; +} + +static cairo_surface_t * +_source_image_create (void *closure, + cairo_format_t format, + int width, + int height, + long uid) +{ + struct trace *args = closure; + + return cairo_surface_create_similar_image (args->surface, + format, width, height); +} + +static cairo_t * +_context_create (void *closure, + cairo_surface_t *surface) +{ + scache_mark_active (surface); + return cairo_create (surface); +} + +static int user_interrupt; + +static void +interrupt (int sig) +{ + if (user_interrupt) { + signal (sig, SIG_DFL); + raise (sig); + } + + user_interrupt = 1; +} + +static void +describe (cairo_perf_t *perf, + void *closure) +{ + char *description = NULL; + + if (perf->has_described_backend) + return; + perf->has_described_backend = TRUE; + + if (perf->target->describe) + description = perf->target->describe (closure); + + if (description == NULL) + return; + + if (perf->raw) { + printf ("[ # ] %s: %s\n", perf->target->name, description); + } + + if (perf->summary) { + fprintf (perf->summary, + "[ # ] %8s: %s\n", + perf->target->name, + description); + } + + free (description); +} + +static void +usage (const char *argv0) +{ + fprintf (stderr, +"Usage: %s [-clrsv] [-i iterations] [-t tile-size] [-x exclude-file] [test-names ... | traces ...]\n" +"\n" +"Run the cairo performance test suite over the given tests (all by default)\n" +"The command-line arguments are interpreted as follows:\n" +"\n" +" -c use surface cache; keep a cache of surfaces to be reused\n" +" -i iterations; specify the number of iterations per test case\n" +" -l list only; just list selected test case names without executing\n" +" -r raw; display each time measurement instead of summary statistics\n" +" -s sync; only sum the elapsed time of the individual operations\n" +" -t tile size; draw to tiled surfaces\n" +" -v verbose; in raw mode also show the summaries\n" +" -x exclude; specify a file to read a list of traces to exclude\n" +"\n" +"If test names are given they are used as sub-string matches so a command\n" +"such as \"%s firefox\" can be used to run all firefox traces.\n" +"Alternatively, you can specify a list of filenames to execute.\n", + argv0, argv0); +} + +static cairo_bool_t +read_excludes (cairo_perf_t *perf, + const char *filename) +{ + FILE *file; + char *line = NULL; + size_t line_size = 0; + char *s, *t; + + file = fopen (filename, "r"); + if (file == NULL) + return FALSE; + + while (getline (&line, &line_size, file) != -1) { + /* terminate the line at a comment marker '#' */ + s = strchr (line, '#'); + if (s) + *s = '\0'; + + /* whitespace delimits */ + s = line; + while (*s != '\0' && isspace ((unsigned char)*s)) + s++; + + t = s; + while (*t != '\0' && ! isspace ((unsigned char)*t)) + t++; + + if (s != t) { + int i = perf->num_exclude_names; + perf->exclude_names = xrealloc (perf->exclude_names, + sizeof (char *) * (i+1)); + perf->exclude_names[i] = strndup (s, t-s); + perf->num_exclude_names++; + } + } + free (line); + + fclose (file); + + return TRUE; +} + +static void +parse_options (cairo_perf_t *perf, + int argc, + char *argv[]) +{ + int c; + const char *iters; + char *end; + int verbose = 0; + int use_surface_cache = 0; + + if ((iters = getenv ("CAIRO_PERF_ITERATIONS")) && *iters) + perf->iterations = strtol (iters, NULL, 0); + else + perf->iterations = CAIRO_PERF_ITERATIONS_DEFAULT; + perf->exact_iterations = 0; + + perf->raw = FALSE; + perf->observe = FALSE; + perf->list_only = FALSE; + perf->tile_size = 0; + perf->names = NULL; + perf->num_names = 0; + perf->summary = stdout; + perf->summary_continuous = FALSE; + perf->exclude_names = NULL; + perf->num_exclude_names = 0; + + while (1) { + c = _cairo_getopt (argc, argv, "ci:lrst:vx:"); + if (c == -1) + break; + + switch (c) { + case 'c': + use_surface_cache = 1; + break; + case 'i': + perf->exact_iterations = TRUE; + perf->iterations = strtoul (optarg, &end, 10); + if (*end != '\0') { + fprintf (stderr, "Invalid argument for -i (not an integer): %s\n", + optarg); + exit (1); + } + break; + case 'l': + perf->list_only = TRUE; + break; + case 'r': + perf->raw = TRUE; + perf->summary = NULL; + break; + case 's': + perf->observe = TRUE; + break; + case 't': + perf->tile_size = strtoul (optarg, &end, 10); + if (*end != '\0') { + fprintf (stderr, "Invalid argument for -t (not an integer): %s\n", + optarg); + exit (1); + } + break; + case 'v': + verbose = 1; + break; + case 'x': + if (! read_excludes (perf, optarg)) { + fprintf (stderr, "Invalid argument for -x (not readable file): %s\n", + optarg); + exit (1); + } + break; + default: + fprintf (stderr, "Internal error: unhandled option: %c\n", c); + /* fall-through */ + case '?': + usage (argv[0]); + exit (1); + } + } + + if (perf->observe && perf->tile_size) { + fprintf (stderr, "Can't mix observer and tiling. Sorry.\n"); + exit (1); + } + + if (verbose && perf->summary == NULL) + perf->summary = stderr; +#if HAVE_UNISTD_H + if (perf->summary && isatty (fileno (perf->summary))) + perf->summary_continuous = TRUE; +#endif + + if (optind < argc) { + perf->names = &argv[optind]; + perf->num_names = argc - optind; + } + + if (use_surface_cache) + surface_cache = _cairo_hash_table_create (scache_equal); +} + +static void +cairo_perf_fini (cairo_perf_t *perf) +{ + cairo_boilerplate_free_targets (perf->targets); + cairo_boilerplate_fini (); + + free (perf->times); + cairo_debug_reset_static_data (); +#if HAVE_FCFINI + FcFini (); +#endif +} + +static cairo_bool_t +have_trace_filenames (cairo_perf_t *perf) +{ + unsigned int i; + + if (perf->num_names == 0) + return FALSE; + +#if HAVE_UNISTD_H + for (i = 0; i < perf->num_names; i++) + if (access (perf->names[i], R_OK) == 0) + return TRUE; +#endif + + return FALSE; +} + +static void +_tiling_surface_finish (cairo_surface_t *observer, + cairo_surface_t *target, + void *closure) +{ + struct trace *args = closure; + cairo_surface_t *surface; + cairo_content_t content; + cairo_rectangle_t r; + int width, height; + int x, y, w, h; + + cairo_recording_surface_get_extents (target, &r); + w = r.width; + h = r.height; + + content = cairo_surface_get_content (target); + + for (y = 0; y < h; y += args->tile_size) { + height = args->tile_size; + if (y + height > h) + height = h - y; + + for (x = 0; x < w; x += args->tile_size) { + cairo_t *cr; + + width = args->tile_size; + if (x + width > w) + width = w - x; + + /* XXX to correctly observe the playback we would need + * to replay the target onto the observer directly. + */ + surface = args->target->create_similar (args->surface, + content, width, height); + + cr = cairo_create (surface); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_surface (cr, target, -x, -y); + cairo_paint (cr); + cairo_destroy (cr); + + cairo_surface_destroy (surface); + } + } +} + +static cairo_surface_t * +_tiling_surface_create (void *closure, + cairo_content_t content, + double width, + double height, + long uid) +{ + cairo_rectangle_t r; + cairo_surface_t *surface, *observer; + + r.x = r.y = 0; + r.width = width; + r.height = height; + + surface = cairo_recording_surface_create (content, &r); + observer = cairo_surface_create_observer (surface, + CAIRO_SURFACE_OBSERVER_NORMAL); + cairo_surface_destroy (surface); + + cairo_surface_observer_add_finish_callback (observer, + _tiling_surface_finish, + closure); + + return observer; +} + +static void +cairo_perf_trace (cairo_perf_t *perf, + const cairo_boilerplate_target_t *target, + const char *trace) +{ + static cairo_bool_t first_run = TRUE; + unsigned int i; + cairo_time_t *times, *paint, *mask, *fill, *stroke, *glyphs; + cairo_stats_t stats = {0.0, 0.0}; + struct trace args = { target }; + int low_std_dev_count; + char *trace_cpy, *name; + const cairo_script_interpreter_hooks_t hooks = { + &args, + perf->tile_size ? _tiling_surface_create : _similar_surface_create, + NULL, /* surface_destroy */ + _context_create, + NULL, /* context_destroy */ + NULL, /* show_page */ + NULL, /* copy_page */ + _source_image_create, + }; + + args.tile_size = perf->tile_size; + args.observe = perf->observe; + + trace_cpy = xstrdup (trace); + name = basename_no_ext (trace_cpy); + + if (perf->list_only) { + printf ("%s\n", name); + free (trace_cpy); + return; + } + + if (first_run) { + if (perf->raw) { + printf ("[ # ] %s.%-s %s %s %s ...\n", + "backend", "content", "test-size", "ticks-per-ms", "time(ticks)"); + } + + if (perf->summary) { + if (perf->observe) { + fprintf (perf->summary, + "[ # ] %8s %28s %9s %9s %9s %9s %9s %9s %5s\n", + "backend", "test", + "total(s)", "paint(s)", "mask(s)", "fill(s)", "stroke(s)", "glyphs(s)", + "count"); + } else { + fprintf (perf->summary, + "[ # ] %8s %28s %8s %5s %5s %s\n", + "backend", "test", "min(s)", "median(s)", + "stddev.", "count"); + } + } + first_run = FALSE; + } + + times = perf->times; + paint = times + perf->iterations; + mask = paint + perf->iterations; + stroke = mask + perf->iterations; + fill = stroke + perf->iterations; + glyphs = fill + perf->iterations; + + low_std_dev_count = 0; + for (i = 0; i < perf->iterations && ! user_interrupt; i++) { + cairo_script_interpreter_t *csi; + cairo_status_t status; + unsigned int line_no; + + args.surface = target->create_surface (NULL, + CAIRO_CONTENT_COLOR_ALPHA, + 1, 1, + 1, 1, + CAIRO_BOILERPLATE_MODE_PERF, + &args.closure); + fill_surface(args.surface); /* remove any clear flags */ + + if (perf->observe) { + cairo_surface_t *obs; + obs = cairo_surface_create_observer (args.surface, + CAIRO_SURFACE_OBSERVER_NORMAL); + cairo_surface_destroy (args.surface); + args.surface = obs; + } + if (cairo_surface_status (args.surface)) { + fprintf (stderr, + "Error: Failed to create target surface: %s\n", + target->name); + return; + } + + cairo_perf_timer_set_synchronize (target->synchronize, args.closure); + + if (i == 0) { + describe (perf, args.closure); + if (perf->summary) { + fprintf (perf->summary, + "[%3d] %8s %28s ", + perf->test_number, + perf->target->name, + name); + fflush (perf->summary); + } + } + + csi = cairo_script_interpreter_create (); + cairo_script_interpreter_install_hooks (csi, &hooks); + + if (! perf->observe) { + cairo_perf_yield (); + cairo_perf_timer_start (); + } + + cairo_script_interpreter_run (csi, trace); + line_no = cairo_script_interpreter_get_line_number (csi); + + /* Finish before querying timings in case we are using an intermediate + * target and so need to destroy all surfaces before rendering + * commences. + */ + cairo_script_interpreter_finish (csi); + + if (perf->observe) { + cairo_device_t *observer = cairo_surface_get_device (args.surface); + times[i] = _cairo_time_from_s (1.e-9 * cairo_device_observer_elapsed (observer)); + paint[i] = _cairo_time_from_s (1.e-9 * cairo_device_observer_paint_elapsed (observer)); + mask[i] = _cairo_time_from_s (1.e-9 * cairo_device_observer_mask_elapsed (observer)); + stroke[i] = _cairo_time_from_s (1.e-9 * cairo_device_observer_stroke_elapsed (observer)); + fill[i] = _cairo_time_from_s (1.e-9 * cairo_device_observer_fill_elapsed (observer)); + glyphs[i] = _cairo_time_from_s (1.e-9 * cairo_device_observer_glyphs_elapsed (observer)); + } else { + fill_surface (args.surface); /* queue a write to the sync'ed surface */ + cairo_perf_timer_stop (); + times[i] = cairo_perf_timer_elapsed (); + } + + scache_clear (); + + cairo_surface_destroy (args.surface); + + if (target->cleanup) + target->cleanup (args.closure); + + status = cairo_script_interpreter_destroy (csi); + if (status) { + if (perf->summary) { + fprintf (perf->summary, "Error during replay, line %d: %s\n", + line_no, + cairo_status_to_string (status)); + } + goto out; + } + + if (perf->raw) { + if (i == 0) + printf ("[*] %s.%s %s.%d %g", + perf->target->name, + "rgba", + name, + 0, + _cairo_time_to_double (_cairo_time_from_s (1)) / 1000.); + printf (" %lld", (long long) times[i]); + fflush (stdout); + } else if (! perf->exact_iterations) { + if (i > CAIRO_PERF_MIN_STD_DEV_COUNT) { + _cairo_stats_compute (&stats, times, i+1); + + if (stats.std_dev <= CAIRO_PERF_LOW_STD_DEV) { + if (++low_std_dev_count >= CAIRO_PERF_STABLE_STD_DEV_COUNT) + break; + } else { + low_std_dev_count = 0; + } + } + } + + if (perf->summary && perf->summary_continuous) { + _cairo_stats_compute (&stats, times, i+1); + + fprintf (perf->summary, + "\r[%3d] %8s %28s ", + perf->test_number, + perf->target->name, + name); + if (perf->observe) { + fprintf (perf->summary, + " %#9.3f", _cairo_time_to_s (stats.median_ticks)); + + _cairo_stats_compute (&stats, paint, i+1); + fprintf (perf->summary, + " %#9.3f", _cairo_time_to_s (stats.median_ticks)); + + _cairo_stats_compute (&stats, mask, i+1); + fprintf (perf->summary, + " %#9.3f", _cairo_time_to_s (stats.median_ticks)); + + _cairo_stats_compute (&stats, fill, i+1); + fprintf (perf->summary, + " %#9.3f", _cairo_time_to_s (stats.median_ticks)); + + _cairo_stats_compute (&stats, stroke, i+1); + fprintf (perf->summary, + " %#9.3f", _cairo_time_to_s (stats.median_ticks)); + + _cairo_stats_compute (&stats, glyphs, i+1); + fprintf (perf->summary, + " %#9.3f", _cairo_time_to_s (stats.median_ticks)); + + fprintf (perf->summary, + " %5d", i+1); + } else { + fprintf (perf->summary, + "%#8.3f %#8.3f %#6.2f%% %4d/%d", + _cairo_time_to_s (stats.min_ticks), + _cairo_time_to_s (stats.median_ticks), + stats.std_dev * 100.0, + stats.iterations, i+1); + } + fflush (perf->summary); + } + } + user_interrupt = 0; + + if (perf->summary) { + _cairo_stats_compute (&stats, times, i); + if (perf->summary_continuous) { + fprintf (perf->summary, + "\r[%3d] %8s %28s ", + perf->test_number, + perf->target->name, + name); + } + if (perf->observe) { + fprintf (perf->summary, + " %#9.3f", _cairo_time_to_s (stats.median_ticks)); + + _cairo_stats_compute (&stats, paint, i); + fprintf (perf->summary, + " %#9.3f", _cairo_time_to_s (stats.median_ticks)); + + _cairo_stats_compute (&stats, mask, i); + fprintf (perf->summary, + " %#9.3f", _cairo_time_to_s (stats.median_ticks)); + + _cairo_stats_compute (&stats, fill, i); + fprintf (perf->summary, + " %#9.3f", _cairo_time_to_s (stats.median_ticks)); + + _cairo_stats_compute (&stats, stroke, i); + fprintf (perf->summary, + " %#9.3f", _cairo_time_to_s (stats.median_ticks)); + + _cairo_stats_compute (&stats, glyphs, i); + fprintf (perf->summary, + " %#9.3f", _cairo_time_to_s (stats.median_ticks)); + + fprintf (perf->summary, + " %5d\n", i); + } else { + fprintf (perf->summary, + "%#8.3f %#8.3f %#6.2f%% %4d/%d\n", + _cairo_time_to_s (stats.min_ticks), + _cairo_time_to_s (stats.median_ticks), + stats.std_dev * 100.0, + stats.iterations, i); + } + fflush (perf->summary); + } + +out: + if (perf->raw) { + printf ("\n"); + fflush (stdout); + } + + perf->test_number++; + free (trace_cpy); +} + +static void +warn_no_traces (const char *message, + const char *trace_dir) +{ + fprintf (stderr, +"Error: %s '%s'.\n" +"Have you cloned the cairo-traces repository and uncompressed the traces?\n" +" git clone git://anongit.freedesktop.org/cairo-traces\n" +" cd cairo-traces && make\n" +"Or set the env.var CAIRO_TRACE_DIR to point to your traces?\n", + message, trace_dir); +} + +static int +cairo_perf_trace_dir (cairo_perf_t *perf, + const cairo_boilerplate_target_t *target, + const char *dirname) +{ + DIR *dir; + struct dirent *de; + int num_traces = 0; + cairo_bool_t force; + cairo_bool_t is_explicit; + + dir = opendir (dirname); + if (dir == NULL) + return 0; + + force = FALSE; + if (cairo_perf_can_run (perf, dirname, &is_explicit)) + force = is_explicit; + + while ((de = readdir (dir)) != NULL) { + char *trace; + struct stat st; + + if (de->d_name[0] == '.') + continue; + + xasprintf (&trace, "%s/%s", dirname, de->d_name); + if (stat (trace, &st) != 0) + goto next; + + if (S_ISDIR(st.st_mode)) { + num_traces += cairo_perf_trace_dir (perf, target, trace); + } else { + const char *dot; + + dot = strrchr (de->d_name, '.'); + if (dot == NULL) + goto next; + if (strcmp (dot, ".trace")) + goto next; + + num_traces++; + if (!force && ! cairo_perf_can_run (perf, de->d_name, NULL)) + goto next; + + cairo_perf_trace (perf, target, trace); + } +next: + free (trace); + + } + closedir (dir); + + return num_traces; +} + +int +main (int argc, + char *argv[]) +{ + cairo_perf_t perf; + const char *trace_dir = "cairo-traces:/usr/src/cairo-traces:/usr/share/cairo-traces"; + unsigned int n; + int i; + + parse_options (&perf, argc, argv); + + signal (SIGINT, interrupt); + + if (getenv ("CAIRO_TRACE_DIR") != NULL) + trace_dir = getenv ("CAIRO_TRACE_DIR"); + + perf.targets = cairo_boilerplate_get_targets (&perf.num_targets, NULL); + perf.times = xmalloc (6 * perf.iterations * sizeof (cairo_time_t)); + + /* do we have a list of filenames? */ + perf.exact_names = have_trace_filenames (&perf); + + for (i = 0; i < perf.num_targets; i++) { + const cairo_boilerplate_target_t *target = perf.targets[i]; + + if (! perf.list_only && ! target->is_measurable) + continue; + + perf.target = target; + perf.test_number = 0; + perf.has_described_backend = FALSE; + + if (perf.exact_names) { + for (n = 0; n < perf.num_names; n++) { + struct stat st; + + if (stat (perf.names[n], &st) == 0) { + if (S_ISDIR (st.st_mode)) { + cairo_perf_trace_dir (&perf, target, perf.names[n]); + } else + cairo_perf_trace (&perf, target, perf.names[n]); + } + } + } else { + int num_traces = 0; + const char *dir; + + dir = trace_dir; + do { + char buf[1024]; + const char *end = strchr (dir, ':'); + if (end != NULL) { + memcpy (buf, dir, end-dir); + buf[end-dir] = '\0'; + end++; + + dir = buf; + } + + num_traces += cairo_perf_trace_dir (&perf, target, dir); + dir = end; + } while (dir != NULL); + + if (num_traces == 0) { + warn_no_traces ("Found no traces in", trace_dir); + return 1; + } + } + + if (perf.list_only) + break; + } + + cairo_perf_fini (&perf); + + return 0; +} diff --git a/local/recipes/libs/cairo/source/perf/cairo-perf.c b/local/recipes/libs/cairo/source/perf/cairo-perf.c new file mode 100644 index 0000000000..244d6cb744 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-perf.c @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2007 Netlabs + * Copyright (c) 2006 Mozilla Corporation + * Copyright (c) 2006 Red Hat, Inc. + * Copyright (c) 2011 Andrea Canciani + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the authors not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The authors make no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Peter Weilbacher + * Vladimir Vukicevic (win32/linux code) + * Carl Worth (win32/linux code) + * Andrea Canciani + */ + +#include "cairo-perf.h" +#include "../src/cairo-time-private.h" + +#if HAVE_UNISTD_H +#include +#endif + +#if defined(_WIN32) +#include +#elif defined(_POSIX_PRIORITY_SCHEDULING) +#include +#endif + + +/* timers */ +static cairo_time_t timer; +static cairo_perf_timer_synchronize_t cairo_perf_timer_synchronize = NULL; +static void *cairo_perf_timer_synchronize_closure = NULL; + +void +cairo_perf_timer_set_synchronize (cairo_perf_timer_synchronize_t synchronize, + void *closure) +{ + cairo_perf_timer_synchronize = synchronize; + cairo_perf_timer_synchronize_closure = closure; +} + +void +cairo_perf_timer_start (void) +{ + timer = _cairo_time_get (); +} + +void +cairo_perf_timer_stop (void) +{ + if (cairo_perf_timer_synchronize) + cairo_perf_timer_synchronize (cairo_perf_timer_synchronize_closure); + + timer = _cairo_time_get_delta (timer); +} + +cairo_time_t +cairo_perf_timer_elapsed (void) +{ + return timer; +} + +void +cairo_perf_yield (void) +{ + /* try to deactivate this thread until the scheduler calls it again */ + +#if defined(_WIN32) + SleepEx(0, TRUE); +#elif defined(_POSIX_PRIORITY_SCHEDULING) + sched_yield (); +#else + sleep (0); +#endif +} diff --git a/local/recipes/libs/cairo/source/perf/cairo-perf.h b/local/recipes/libs/cairo/source/perf/cairo-perf.h new file mode 100644 index 0000000000..eb53d13c27 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-perf.h @@ -0,0 +1,250 @@ +/* + * Copyright © 2006 Mozilla Corporation + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the authors not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The authors make no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Vladimir Vukicevic + * Carl Worth + */ + +#ifndef _CAIRO_PERF_H_ +#define _CAIRO_PERF_H_ + +#include "cairo-boilerplate.h" +#include "../src/cairo-time-private.h" +#include + +typedef struct _cairo_stats { + cairo_time_t min_ticks; + cairo_time_t median_ticks; + double ticks_per_ms; + double std_dev; + int iterations; + cairo_time_t *values; +} cairo_stats_t; + +typedef struct _cairo_histogram { + int width, height, max_count; + int num_columns, num_rows; + cairo_time_t min_value, max_value; + int *columns; +} cairo_histogram_t; + + +/* timers */ + +void +cairo_perf_timer_start (void); + +void +cairo_perf_timer_stop (void); + +typedef void +(*cairo_perf_timer_synchronize_t) (void *closure); + +void +cairo_perf_timer_set_synchronize (cairo_perf_timer_synchronize_t synchronize, + void *closure); + +cairo_time_t +cairo_perf_timer_elapsed (void); + +/* yield */ + +void +cairo_perf_yield (void); + +/* running a test case */ +typedef struct _cairo_perf { + FILE *summary; + cairo_bool_t summary_continuous; + + /* Options from command-line */ + unsigned int iterations; + cairo_bool_t exact_iterations; + cairo_bool_t raw; + cairo_bool_t list_only; + cairo_bool_t observe; + char **names; + unsigned int num_names; + char **exclude_names; + unsigned int num_exclude_names; + cairo_bool_t exact_names; + + double ms_per_iteration; + cairo_bool_t fast_and_sloppy; + + unsigned int tile_size; + + /* Stuff used internally */ + cairo_time_t *times; + const cairo_boilerplate_target_t **targets; + int num_targets; + const cairo_boilerplate_target_t *target; + cairo_bool_t has_described_backend; + unsigned int test_number; + unsigned int size; + cairo_t *cr; +} cairo_perf_t; + +typedef cairo_time_t +(*cairo_perf_func_t) (cairo_t *cr, int width, int height, int loops); + +typedef double +(*cairo_count_func_t) (cairo_t *cr, int width, int height); + +cairo_bool_t +cairo_perf_can_run (cairo_perf_t *perf, + const char *name, + cairo_bool_t *is_explicit); + +void +cairo_perf_run (cairo_perf_t *perf, + const char *name, + cairo_perf_func_t perf_func, + cairo_count_func_t count_func); + +void +cairo_perf_cover_sources_and_operators (cairo_perf_t *perf, + const char *name, + cairo_perf_func_t perf_func, + cairo_count_func_t count_func); + +/* reporter convenience routines */ + +typedef struct _test_report { + int id; + int fileno; + const char *configuration; + char *backend; + char *content; + char *name; + int size; + + /* The samples only exists for "raw" reports */ + cairo_time_t *samples; + unsigned int samples_size; + unsigned int samples_count; + + /* The stats are either read directly or computed from samples. + * If the stats have not yet been computed from samples, then + * iterations will be 0. */ + cairo_stats_t stats; +} test_report_t; + +typedef struct _test_diff { + test_report_t **tests; + int num_tests; + double min; + double max; + double change; +} test_diff_t; + +typedef struct _cairo_perf_report { + char *configuration; + const char *name; + int fileno; + test_report_t *tests; + int tests_size; + int tests_count; +} cairo_perf_report_t; + +typedef enum { + TEST_REPORT_STATUS_SUCCESS, + TEST_REPORT_STATUS_COMMENT, + TEST_REPORT_STATUS_ERROR +} test_report_status_t; + +void +cairo_perf_report_load (cairo_perf_report_t *report, + const char *filename, int id, + int (*cmp) (const void *, const void *)); + +void +cairo_perf_report_sort_and_compute_stats (cairo_perf_report_t *report, + int (*cmp) (const void *, const void *)); + +int +test_report_cmp_backend_then_name (const void *a, + const void *b); + +int +test_report_cmp_name (const void *a, + const void *b); + +#define CAIRO_PERF_ENABLED_DECL(func) cairo_bool_t (func ## _enabled) (cairo_perf_t *perf) +#define CAIRO_PERF_RUN_DECL(func) void (func) (cairo_perf_t *perf, cairo_t *cr, int width, int height) + +#define CAIRO_PERF_DECL(func) CAIRO_PERF_RUN_DECL(func); CAIRO_PERF_ENABLED_DECL(func) + +#ifndef MIN +#define MIN(a, b) ((a) < (b) ? (a) : (b)) +#endif + +#ifndef MAX +#define MAX(a, b) ((a) > (b) ? (a) : (b)) +#endif + +CAIRO_PERF_DECL (fill); +CAIRO_PERF_DECL (paint); +CAIRO_PERF_DECL (paint_with_alpha); +CAIRO_PERF_DECL (mask); +CAIRO_PERF_DECL (stroke); +CAIRO_PERF_DECL (subimage_copy); +CAIRO_PERF_DECL (disjoint); +CAIRO_PERF_DECL (hatching); +CAIRO_PERF_DECL (tessellate); +CAIRO_PERF_DECL (text); +CAIRO_PERF_DECL (glyphs); +CAIRO_PERF_DECL (hash_table); +CAIRO_PERF_DECL (pattern_create_radial); +CAIRO_PERF_DECL (zrusin); +CAIRO_PERF_DECL (world_map); +CAIRO_PERF_DECL (box_outline); +CAIRO_PERF_DECL (mosaic); +CAIRO_PERF_DECL (long_lines); +CAIRO_PERF_DECL (unaligned_clip); +CAIRO_PERF_DECL (rectangles); +CAIRO_PERF_DECL (rounded_rectangles); +CAIRO_PERF_DECL (long_dashed_lines); +CAIRO_PERF_DECL (composite_checker); +CAIRO_PERF_DECL (twin); +CAIRO_PERF_DECL (dragon); +CAIRO_PERF_DECL (pythagoras_tree); +CAIRO_PERF_DECL (intersections); +CAIRO_PERF_DECL (spiral); +CAIRO_PERF_DECL (wave); +CAIRO_PERF_DECL (many_strokes); +CAIRO_PERF_DECL (wide_strokes); +CAIRO_PERF_DECL (many_fills); +CAIRO_PERF_DECL (wide_fills); +CAIRO_PERF_DECL (many_curves); +CAIRO_PERF_DECL (curve); +CAIRO_PERF_DECL (a1_curve); +CAIRO_PERF_DECL (line); +CAIRO_PERF_DECL (a1_line); +CAIRO_PERF_DECL (pixel); +CAIRO_PERF_DECL (a1_pixel); +CAIRO_PERF_DECL (sierpinski); +CAIRO_PERF_DECL (fill_clip); +CAIRO_PERF_DECL (tiger); + +#endif diff --git a/local/recipes/libs/cairo/source/perf/cairo-stats.c b/local/recipes/libs/cairo/source/perf/cairo-stats.c new file mode 100644 index 0000000000..aee9fe8b56 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-stats.c @@ -0,0 +1,182 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the authors not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The authors make no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Carl Worth + */ + +#include "cairo-stats.h" + +#include + +void +_cairo_stats_compute (cairo_stats_t *stats, + cairo_time_t *values, + int num_values) +{ + cairo_time_t sum, mean, q1, q3, iqr; + cairo_time_t outlier_min, outlier_max; + int i, min_valid, num_valid; + double s; + + assert (num_values > 0); + + if (num_values == 1) { + stats->min_ticks = stats->median_ticks = values[0]; + stats->std_dev = 0; + stats->iterations = 1; + stats->values = values; + return; + } + + /* First, identify any outliers, using the definition of "mild + * outliers" from: + * + * http://en.wikipedia.org/wiki/Outliers + * + * Which is that outliers are any values less than Q1 - 1.5 * IQR + * or greater than Q3 + 1.5 * IQR where Q1 and Q3 are the first + * and third quartiles and IQR is the inter-quartile range (Q3 - + * Q1). + */ + num_valid = num_values; + do { + num_values = num_valid; + qsort (values, num_values, sizeof (cairo_time_t), _cairo_time_cmp); + + q1 = values[1*num_values/4]; + q3 = values[3*num_values/4]; + + /* XXX assumes we have native uint64_t */ + iqr = q3 - q1; + outlier_min = q1 - 3 * iqr / 2; + outlier_max = q3 + 3 * iqr / 2; + + for (i = 0; i < num_values && values[i] < outlier_min; i++) + ; + min_valid = i; + + for (i = 0; i < num_values && values[i] <= outlier_max; i++) + ; + num_valid = i - min_valid; + assert(num_valid); + values += min_valid; + } while (num_valid != num_values); + + stats->values = values; + stats->iterations = num_valid; + stats->min_ticks = values[0]; + stats->median_ticks = values[num_valid / 2]; + + sum = 0; + for (i = 0; i < num_valid; i++) + sum = _cairo_time_add (sum, values[i]); + mean = sum / num_valid; + + /* Let's use a normalized std. deviation for easier comparison. */ + s = 0; + for (i = 0; i < num_valid; i++) { + double delta = (values[i] - mean) / (double)mean; + s += delta * delta; + } + stats->std_dev = sqrt(s / num_valid); +} + +cairo_bool_t +_cairo_histogram_init (cairo_histogram_t *h, + int width, int height) +{ + h->width = width; + h->height = height; + if (h->width < 2 || h->height < 1) + return FALSE; + + h->num_columns = width - 2; + h->num_rows = height - 1; + h->columns = malloc (sizeof(int)*h->num_columns); + return h->columns != NULL; +} + +cairo_bool_t +_cairo_histogram_compute (cairo_histogram_t *h, + const cairo_time_t *values, + int num_values) +{ + cairo_time_t delta; + int i; + + if (num_values == 0) + return FALSE; + + h->min_value = values[0]; + h->max_value = values[0]; + + for (i = 1; i < num_values; i++) { + if (values[i] < h->min_value) + h->min_value = values[i]; + if (values[i] > h->max_value) + h->max_value = values[i]; + } + + delta = h->max_value - h->min_value; + if (delta == 0) + return FALSE; + + memset(h->columns, 0, sizeof(int)*h->num_columns); + h->max_count = 0; + + for (i = 0; i < num_values; i++) { + int count = h->columns[(values[i] - h->min_value) * (h->num_columns - 1) / delta]++; + if (count > h->max_count) + h->max_count = count; + } + + return TRUE; +} + +void +_cairo_histogram_printf (cairo_histogram_t *h, + FILE *file) +{ + int x, y, num_rows; + + num_rows = h->num_rows; + if (h->max_count < num_rows) + num_rows = h->max_count; + for (y = 0; y < num_rows; y++) { + int min_count = ((num_rows - y - 1) * h->max_count) / num_rows + h->max_count / (2*num_rows); + fprintf (file, "|"); + for (x = 0; x < h->num_columns; x++) + fprintf (file, "%c", h->columns[x] > min_count ? 'x' : ' '); + fprintf (file, "|\n"); + } + + fprintf(file, "."); + for (x = 0; x < h->num_columns; x++) + fprintf (file, "-"); + fprintf (file, ".\n"); +} + +void +_cairo_histogram_fini (cairo_histogram_t *h) +{ + free(h->columns); +} diff --git a/local/recipes/libs/cairo/source/perf/cairo-stats.h b/local/recipes/libs/cairo/source/perf/cairo-stats.h new file mode 100644 index 0000000000..2b32d67ae3 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/cairo-stats.h @@ -0,0 +1,52 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the authors not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The authors make no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Carl Worth + */ + +#ifndef _CAIRO_STATS_H_ +#define _CAIRO_STATS_H_ + +#include "cairo-perf.h" + +void +_cairo_stats_compute (cairo_stats_t *stats, + cairo_time_t *values, + int num_values); + +cairo_bool_t +_cairo_histogram_init (cairo_histogram_t *h, + int width, int height); + +cairo_bool_t +_cairo_histogram_compute (cairo_histogram_t *h, + const cairo_time_t *values, + int num_values); + +void +_cairo_histogram_printf (cairo_histogram_t *h, + FILE *file); + +void +_cairo_histogram_fini (cairo_histogram_t *h); + +#endif /* _CAIRO_STATS_H_ */ diff --git a/local/recipes/libs/cairo/source/perf/dirent-win32.h b/local/recipes/libs/cairo/source/perf/dirent-win32.h new file mode 100644 index 0000000000..435a6cfa2d --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/dirent-win32.h @@ -0,0 +1,101 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2011 Andrea Canciani + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the authors not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The authors make no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Andrea Canciani + */ + +#include "cairo-compiler-private.h" + +#include + +#define stat _stat + +#define S_ISDIR(s) ((s) & _S_IFDIR) + +struct dirent { + ino_t d_ino; + char d_name[FILENAME_MAX + 1]; +}; + +typedef struct _DIR { + HANDLE handle; + cairo_bool_t has_next; + WIN32_FIND_DATA data; + struct dirent de; +} DIR; + +static DIR * +opendir(const char *dirname) +{ + DIR *dirp; + + dirp = malloc (sizeof (*dirp)); + if (unlikely (dirp == NULL)) + return NULL; + + dirp->handle = FindFirstFile(dirname, &dirp->data); + + if (unlikely (dirp->handle == INVALID_HANDLE_VALUE)) { + free (dirp); + return NULL; + } + + memcpy (dirp->de.d_name, dirp->data.cFileName, + sizeof (dirp->data.cFileName)); + dirp->de.d_name[FILENAME_MAX] = '\0'; + + dirp->has_next = TRUE; + + return dirp; +} + +static int +closedir(DIR *dirp) +{ + int ret; + + ret = ! FindClose (dirp->handle); + + free (dirp); + + /* TODO: set errno */ + + return ret; +} + +static struct dirent * +readdir(DIR *dirp) +{ + if (! dirp->has_next) + return NULL; + + /* COMPILE_TIME_ASSERT (FILENAME_MAX == sizeof (dirp->data.cFileName)); */ + + memcpy (dirp->de.d_name, dirp->data.cFileName, + sizeof (dirp->data.cFileName)); + dirp->de.d_name[FILENAME_MAX] = '\0'; + + dirp->has_next = FindNextFile (dirp->handle, &dirp->data); + + return &dirp->de; +} diff --git a/local/recipes/libs/cairo/source/perf/meson.build b/local/recipes/libs/cairo/source/perf/meson.build new file mode 100644 index 0000000000..d26dd69234 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/meson.build @@ -0,0 +1,94 @@ +incmicro = include_directories('.') + +subdir('micro') + +gtk2_dep = dependency('gtk+-2.0', required: false) + +libcairoperf = static_library('cairoperf', + [ + 'cairo-perf.c', + 'cairo-perf-report.c', + 'cairo-stats.c', + '../src/cairo-time.c', + 'cairo-perf.h', + 'cairo-stats.h', + ], + include_directories: [incbase, incsrc], + dependencies: [pixman_dep, libcairomissing_dep, cairoboilerplate_dep], +) +libcairoperf_dep = declare_dependency( + link_with: libcairoperf, +) + + +analyse_trace = executable('cairo-analyse-trace', + [ + 'cairo-analyse-trace.c', + '../src/cairo-error.c', + ], + include_directories: [incbase], + dependencies: [pixman_dep, fontconfig_dep, libcairo_dep, cairoboilerplate_dep, + libcairoscript_dep, libcairomissing_dep], +) + +perf_trace = executable('cairo-perf-trace', + [ + 'cairo-perf-trace.c', + '../src/cairo-error.c', + '../src/cairo-hash.c', + ], + include_directories: [incbase, incsrc], + dependencies: [pixman_dep, fontconfig_dep, libcairoperf_dep, libcairoscript_dep, + cairoboilerplate_dep, libcairomissing_dep], +) + +micro = executable('cairo-perf-micro', + [ 'cairo-perf-micro.c', ], + include_directories: [incbase, incsrc], + dependencies: [fontconfig_dep, libcairoperf_dep, libcairoperfmicro_dep, + cairoboilerplate_dep, libcairomissing_dep], +) + +diff_files = executable('cairo-perf-diff-files', + [ + 'cairo-perf-diff-files.c', + ], + include_directories: [incbase, incsrc], + dependencies: [libcairoperf_dep, cairoboilerplate_dep], +) + +print = executable('cairo-perf-print', + [ + 'cairo-perf-print.c', + ], + include_directories: [incbase, incsrc], + dependencies: [libcairoperf_dep, cairoboilerplate_dep], +) + +chart = executable('cairo-perf-chart', + [ + 'cairo-perf-chart.c', + ], + include_directories: [incbase, incsrc], + dependencies: [libcairoperf_dep, cairoboilerplate_dep], +) + +compare_backends = executable('cairo-perf-compare-backends', + [ + 'cairo-perf-compare-backends.c', + ], + include_directories: [incbase, incsrc], + dependencies: [libcairoperf_dep, cairoboilerplate_dep], +) + +if gtk2_dep.found() + graph_files = executable('cairo-perf-graph', + [ + 'cairo-perf-graph-files.c', + 'cairo-perf-graph-widget.c', + 'cairo-perf-graph.h', + ], + include_directories: [incbase, incsrc], + dependencies: [gtk2_dep, libcairo_dep, cairoboilerplate_dep, libcairoperf_dep], + ) +endif diff --git a/local/recipes/libs/cairo/source/perf/micro/a1-curve.c b/local/recipes/libs/cairo/source/perf/micro/a1-curve.c new file mode 100644 index 0000000000..594c46d5c8 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/a1-curve.c @@ -0,0 +1,112 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-perf.h" + +static uint32_t state; + +static double +uniform_random (double minval, double maxval) +{ + static uint32_t const poly = 0x9a795537U; + uint32_t n = 32; + while (n-->0) + state = 2*state < state ? (2*state ^ poly) : 2*state; + return minval + state * (maxval - minval) / 4294967296.0; +} + +static cairo_time_t +do_curve_stroke (cairo_t *cr, int width, int height, int loops) +{ + state = 0xc0ffee; + cairo_set_line_width (cr, 2.); + cairo_perf_timer_start (); + + while (loops--) { + double x1 = uniform_random (0, width); + double x2 = uniform_random (0, width); + double x3 = uniform_random (0, width); + double y1 = uniform_random (0, height); + double y2 = uniform_random (0, height); + double y3 = uniform_random (0, height); + cairo_move_to (cr, uniform_random (0, width), uniform_random (0, height)); + cairo_curve_to (cr, x1, y1, x2, y2, x3, y3); + cairo_stroke(cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_curve_fill (cairo_t *cr, int width, int height, int loops) +{ + state = 0xc0ffee; + cairo_perf_timer_start (); + + while (loops--) { + double x0 = uniform_random (0, width); + double x1 = uniform_random (0, width); + double x2 = uniform_random (0, width); + double x3 = uniform_random (0, width); + double xm = uniform_random (0, width); + double xn = uniform_random (0, width); + double y0 = uniform_random (0, height); + double y1 = uniform_random (0, height); + double y2 = uniform_random (0, height); + double y3 = uniform_random (0, height); + double ym = uniform_random (0, height); + double yn = uniform_random (0, height); + + cairo_move_to (cr, xm, ym); + cairo_curve_to (cr, x1, y1, x2, y2, xn, yn); + cairo_curve_to (cr, x3, y3, x0, y0, xm, ym); + cairo_close_path (cr); + + cairo_fill(cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +a1_curve_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "a1-curve", NULL); +} + +void +a1_curve (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1., 1., 1.); + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + cairo_perf_run (perf, "a1-curve-stroked", do_curve_stroke, NULL); + cairo_perf_run (perf, "a1-curve-filled", do_curve_fill, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/a1-line.c b/local/recipes/libs/cairo/source/perf/micro/a1-line.c new file mode 100644 index 0000000000..ae86602125 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/a1-line.c @@ -0,0 +1,223 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-perf.h" + +static cairo_time_t +horizontal (cairo_t *cr, int width, int height, int loops) +{ + double h = height/2 + .5; + + cairo_move_to (cr, 0, h); + cairo_line_to (cr, width, h); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +horizontal_hair (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 1.); + return horizontal (cr, width, height, loops); +} + +static cairo_time_t +horizontal_wide (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 5.); + return horizontal (cr, width, height, loops); +} + +static cairo_time_t +nearly_horizontal (cairo_t *cr, int width, int height, int loops) +{ + double h = height/2; + + cairo_move_to (cr, 0, h); + cairo_line_to (cr, width, h+1); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +nearly_horizontal_hair (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 1.); + return nearly_horizontal (cr, width, height, loops); +} + +static cairo_time_t +nearly_horizontal_wide (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 5.); + return nearly_horizontal (cr, width, height, loops); +} + + +static cairo_time_t +vertical (cairo_t *cr, int width, int height, int loops) +{ + double w = width/2 + .5; + + cairo_move_to (cr, w, 0); + cairo_line_to (cr, w, height); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +vertical_hair (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 1.); + return vertical (cr, width, height, loops); +} + +static cairo_time_t +vertical_wide (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 5.); + return vertical (cr, width, height, loops); +} + +static cairo_time_t +nearly_vertical (cairo_t *cr, int width, int height, int loops) +{ + double w = width/2; + + cairo_move_to (cr, w, 0); + cairo_line_to (cr, w+1, height); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +nearly_vertical_hair (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 1.); + return nearly_vertical (cr, width, height, loops); +} + +static cairo_time_t +nearly_vertical_wide (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 5.); + return nearly_vertical (cr, width, height, loops); +} + + +static cairo_time_t +diagonal (cairo_t *cr, int width, int height, int loops) +{ + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, width, height); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +diagonal_hair (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 1.); + return diagonal (cr, width, height, loops); +} + +static cairo_time_t +diagonal_wide (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 5.); + return diagonal (cr, width, height, loops); +} + +cairo_bool_t +a1_line_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "a1-line", NULL); +} + +void +a1_line (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1., 1., 1.); + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + cairo_perf_run (perf, "a1-line-hh", horizontal_hair, NULL); + cairo_perf_run (perf, "a1-line-hw", horizontal_wide, NULL); + cairo_perf_run (perf, "a1-line-nhh", nearly_horizontal_hair, NULL); + cairo_perf_run (perf, "a1-line-nhw", nearly_horizontal_wide, NULL); + + cairo_perf_run (perf, "a1-line-vh", vertical_hair, NULL); + cairo_perf_run (perf, "a1-line-vw", vertical_wide, NULL); + cairo_perf_run (perf, "a1-line-nvh", nearly_vertical_hair, NULL); + cairo_perf_run (perf, "a1-line-nvw", nearly_vertical_wide, NULL); + + cairo_perf_run (perf, "a1-line-dh", diagonal_hair, NULL); + cairo_perf_run (perf, "a1-line-dw", diagonal_wide, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/box-outline.c b/local/recipes/libs/cairo/source/perf/micro/box-outline.c new file mode 100644 index 0000000000..1e654eb954 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/box-outline.c @@ -0,0 +1,215 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-perf.h" + +/* This test case is designed to illustrate a performance bug that + * exists in cairo in which using cairo_stroke is much slower than + * cairo_fill to draw an identical figure, (and in particular a figure + * that is much more natural to draw with cairo_stroke). The figure is + * a 100x100 square outline 1-pixel wide, nicely pixel aligned. + * + * The performance bug should affect any path whose resulting contour + * consists only of pixel-aligned horizontal and vertical elements. + * + * Initial testing on on machine shows stroke as 5x slower than fill + * for the xlib backend and 16x slower for the image backend. + */ + +static cairo_time_t +box_outline_stroke (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_paint (cr); + + cairo_rectangle (cr, + 1.5, 1.5, + width - 3, height - 3); + cairo_set_line_width (cr, 1.0); + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +box_outline_alpha_stroke (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_paint (cr); + + cairo_rectangle (cr, + 1.5, 1.5, + width - 3, height - 3); + cairo_set_line_width (cr, 1.0); + cairo_set_source_rgba (cr, 1, 0, 0, .5); /* red */ + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +box_outline_aa_stroke (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_paint (cr); + + cairo_translate (cr, .5, .5); + cairo_rectangle (cr, + 1.5, 1.5, + width - 3, height - 3); + cairo_set_line_width (cr, 1.0); + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +box_outline_fill (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_paint (cr); + + cairo_rectangle (cr, + 1.0, 1.0, + width - 2, height - 2); + cairo_rectangle (cr, + 2.0, 2.0, + width - 4, height - 4); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_set_source_rgb (cr, 0, 1, 0); /* green */ + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +box_outline_alpha_fill (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_paint (cr); + + cairo_rectangle (cr, + 1.0, 1.0, + width - 2, height - 2); + cairo_rectangle (cr, + 2.0, 2.0, + width - 4, height - 4); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_set_source_rgba (cr, 0, 1, 0, .5); /* green */ + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +box_outline_aa_fill (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_paint (cr); + + cairo_translate (cr, .5, .5); + cairo_rectangle (cr, + 1.0, 1.0, + width - 2, height - 2); + cairo_rectangle (cr, + 2.0, 2.0, + width - 4, height - 4); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_set_source_rgb (cr, 0, 1, 0); /* green */ + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +box_outline_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "box-outline", NULL); +} + +void +box_outline (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "box-outline-stroke", box_outline_stroke, NULL); + cairo_perf_run (perf, "box-outline-fill", box_outline_fill, NULL); + + cairo_perf_run (perf, "box-outline-alpha-stroke", box_outline_alpha_stroke, NULL); + cairo_perf_run (perf, "box-outline-alpha-fill", box_outline_alpha_fill, NULL); + + cairo_perf_run (perf, "box-outline-aa-stroke", box_outline_aa_stroke, NULL); + cairo_perf_run (perf, "box-outline-aa-fill", box_outline_aa_fill, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/cairo-perf-cover.c b/local/recipes/libs/cairo/source/perf/micro/cairo-perf-cover.c new file mode 100644 index 0000000000..c2499021fa --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/cairo-perf-cover.c @@ -0,0 +1,339 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-perf.h" + +static void +init_and_set_source_surface (cairo_t *cr, + cairo_surface_t *source, + int width, + int height) +{ + cairo_t *cr2; + + /* Fill it with something known */ + cr2 = cairo_create (source); + cairo_set_operator (cr2, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgb (cr2, 0, 0, 1); /* blue */ + cairo_paint (cr2); + + cairo_set_source_rgba (cr2, 1, 0, 0, 0.5); /* 50% red */ + cairo_new_path (cr2); + cairo_rectangle (cr2, 0, 0, width/2.0, height/2.0); + cairo_rectangle (cr2, width/2.0, height/2.0, width/2.0, height/2.0); + cairo_fill (cr2); + + cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); +} + +static void +set_source_solid_rgb (cairo_t *cr, + int width, + int height) +{ + cairo_set_source_rgb (cr, 0.2, 0.6, 0.9); +} + +static void +set_source_solid_rgba (cairo_t *cr, + int width, + int height) +{ + cairo_set_source_rgba (cr, 0.2, 0.6, 0.9, 0.7); +} + +static void +set_source_image_surface_rgb (cairo_t *cr, + int width, + int height) +{ + cairo_surface_t *source; + + source = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + width, height); + init_and_set_source_surface (cr, source, width, height); + + cairo_surface_destroy (source); +} + +static void +set_source_image_surface_rgba (cairo_t *cr, + int width, + int height) +{ + cairo_surface_t *source; + + source = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + width, height); + init_and_set_source_surface (cr, source, width, height); + + cairo_surface_destroy (source); +} + +static void +set_source_image_surface_rgba_mag (cairo_t *cr, + int width, + int height) +{ + cairo_surface_t *source; + + source = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + width/2, height/2); + cairo_scale(cr, 2.1, 2.1); + init_and_set_source_surface (cr, source, width/2, height/2); + cairo_scale(cr, 1/2.1, 1/2.1); + + cairo_surface_destroy (source); +} + +static void +set_source_image_surface_rgba_min (cairo_t *cr, + int width, + int height) +{ + cairo_surface_t *source; + + source = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + width*2, height*2); + cairo_scale(cr, 1/1.9, 1/1.9); + init_and_set_source_surface (cr, source, width*2, height*2); + cairo_scale(cr, 1.9, 1.9); + + cairo_surface_destroy (source); +} + +static void +set_source_similar_surface_rgb (cairo_t *cr, + int width, + int height) +{ + cairo_surface_t *source; + + source = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_COLOR, + width, height); + init_and_set_source_surface (cr, source, width, height); + + cairo_surface_destroy (source); +} + +static void +set_source_similar_surface_rgba (cairo_t *cr, + int width, + int height) +{ + cairo_surface_t *source; + + source = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + width, height); + init_and_set_source_surface (cr, source, width, height); + + cairo_surface_destroy (source); +} + +static void +set_source_similar_surface_rgba_mag (cairo_t *cr, + int width, + int height) +{ + cairo_surface_t *source; + + source = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + width/2, height/2); + cairo_scale(cr, 2.1, 2.1); + init_and_set_source_surface (cr, source, width/2, height/2); + cairo_scale(cr, 1/2.1, 1/2.1); + + cairo_surface_destroy (source); +} + +static void +set_source_similar_surface_rgba_min (cairo_t *cr, + int width, + int height) +{ + cairo_surface_t *source; + + source = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + width*2, height*2); + cairo_scale(cr, 1/1.9, 1/1.9); + init_and_set_source_surface (cr, source, width*2, height*2); + cairo_scale(cr, 1.9, 1.9); + + cairo_surface_destroy (source); +} + +static void +set_source_linear_rgb (cairo_t *cr, + int width, + int height) +{ + cairo_pattern_t *linear; + + linear = cairo_pattern_create_linear (0.0, 0.0, width, height); + cairo_pattern_add_color_stop_rgb (linear, 0.0, 1, 0, 0); /* red */ + cairo_pattern_add_color_stop_rgb (linear, 1.0, 0, 0, 1); /* blue */ + + cairo_set_source (cr, linear); + + cairo_pattern_destroy (linear); +} + +static void +set_source_linear_rgba (cairo_t *cr, + int width, + int height) +{ + cairo_pattern_t *linear; + + linear = cairo_pattern_create_linear (0.0, 0.0, width, height); + cairo_pattern_add_color_stop_rgba (linear, 0.0, 1, 0, 0, 0.5); /* 50% red */ + cairo_pattern_add_color_stop_rgba (linear, 1.0, 0, 0, 1, 0.0); /* 0% blue */ + + cairo_set_source (cr, linear); + + cairo_pattern_destroy (linear); +} + +static void +set_source_linear3_rgb (cairo_t *cr, + int width, + int height) +{ + cairo_pattern_t *linear; + + linear = cairo_pattern_create_linear (0.0, 0.0, width, height); + cairo_pattern_add_color_stop_rgb (linear, 0.0, 1, 0, 0); /* red */ + cairo_pattern_add_color_stop_rgb (linear, 0.5, 0, 1, 0); /* green */ + cairo_pattern_add_color_stop_rgb (linear, 1.0, 0, 0, 1); /* blue */ + + cairo_set_source (cr, linear); + + cairo_pattern_destroy (linear); +} + +static void +set_source_linear3_rgba (cairo_t *cr, + int width, + int height) +{ + cairo_pattern_t *linear; + + linear = cairo_pattern_create_linear (0.0, 0.0, width, height); + cairo_pattern_add_color_stop_rgba (linear, 0.0, 1, 0, 0, 0.5); /* 50% red */ + cairo_pattern_add_color_stop_rgba (linear, 0.5, 0, 1, 0, 0.0); /* 0% green */ + cairo_pattern_add_color_stop_rgba (linear, 1.0, 0, 0, 1, 0.5); /* 50% blue */ + + cairo_set_source (cr, linear); + + cairo_pattern_destroy (linear); +} + +static void +set_source_radial_rgb (cairo_t *cr, + int width, + int height) +{ + cairo_pattern_t *radial; + + radial = cairo_pattern_create_radial (width/2.0, height/2.0, 0.0, + width/2.0, height/2.0, width/2.0); + cairo_pattern_add_color_stop_rgb (radial, 0.0, 1, 0, 0); /* red */ + cairo_pattern_add_color_stop_rgb (radial, 1.0, 0, 0, 1); /* blue */ + + cairo_set_source (cr, radial); + + cairo_pattern_destroy (radial); +} + +static void +set_source_radial_rgba (cairo_t *cr, + int width, + int height) +{ + cairo_pattern_t *radial; + + radial = cairo_pattern_create_radial (width/2.0, height/2.0, 0.0, + width/2.0, height/2.0, width/2.0); + cairo_pattern_add_color_stop_rgba (radial, 0.0, 1, 0, 0, 0.5); /* 50% red */ + cairo_pattern_add_color_stop_rgba (radial, 1.0, 0, 0, 1, 0.0); /* 0% blue */ + + cairo_set_source (cr, radial); + + cairo_pattern_destroy (radial); +} + +typedef void (*set_source_func_t) (cairo_t *cr, int width, int height); + +void +cairo_perf_cover_sources_and_operators (cairo_perf_t *perf, + const char *name, + cairo_perf_func_t perf_func, + cairo_count_func_t count_func) +{ + unsigned int i, j; + char *expanded_name; + + struct { set_source_func_t set_source; const char *name; } sources[] = { + { set_source_solid_rgb, "solid-rgb" }, + { set_source_solid_rgba, "solid-rgba" }, + { set_source_image_surface_rgb, "image-rgb" }, + { set_source_image_surface_rgba, "image-rgba" }, + { set_source_image_surface_rgba_mag, "image-rgba-mag" }, + { set_source_image_surface_rgba_min, "image-rgba-min" }, + { set_source_similar_surface_rgb, "similar-rgb" }, + { set_source_similar_surface_rgba, "similar-rgba" }, + { set_source_similar_surface_rgba_mag, "similar-rgba-mag" }, + { set_source_similar_surface_rgba_min, "similar-rgba-min" }, + { set_source_linear_rgb, "linear-rgb" }, + { set_source_linear_rgba, "linear-rgba" }, + { set_source_linear3_rgb, "linear3-rgb" }, + { set_source_linear3_rgba, "linear3-rgba" }, + { set_source_radial_rgb, "radial-rgb" }, + { set_source_radial_rgba, "radial-rgba" } + }; + + struct { cairo_operator_t op; const char *name; } operators[] = { + { CAIRO_OPERATOR_OVER, "over" }, + { CAIRO_OPERATOR_SOURCE, "source" } + }; + + for (i = 0; i < ARRAY_LENGTH (sources); i++) { + (sources[i].set_source) (perf->cr, perf->size, perf->size); + + for (j = 0; j < ARRAY_LENGTH (operators); j++) { + cairo_set_operator (perf->cr, operators[j].op); + + xasprintf (&expanded_name, "%s_%s_%s", + name, sources[i].name, operators[j].name); + cairo_perf_run (perf, expanded_name, perf_func, count_func); + free (expanded_name); + } + } +} diff --git a/local/recipes/libs/cairo/source/perf/micro/composite-checker.c b/local/recipes/libs/cairo/source/perf/micro/composite-checker.c new file mode 100644 index 0000000000..d6d17ab638 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/composite-checker.c @@ -0,0 +1,117 @@ +/* + * Copyright © 2007 Björn Lindqvist + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Björn Lindqvist + */ + +#include "cairo-perf.h" + +/* This test case measures how much time cairo takes to render the + * equivalent of the following gdk-pixbuf operation: + * + * gdk_pixbuf_composite_color(dest, + * 0, 0, DST_SIZE, DST_SIZE, + * 0, 0, + * SCALE, SCALE, + * gdk.INTERP_NEAREST, + * 255, + * 0, 0, + * 8, 0x33333333, 0x88888888); + * + * Cairo is (at the time of writing) about 2-3 times as slow as + * gdk-pixbuf. + */ +#define PAT_SIZE 16 +#define SRC_SIZE 64 + +static cairo_pattern_t *checkerboard = NULL; +static cairo_pattern_t *src_pattern = NULL; + +static cairo_time_t +do_composite_checker (cairo_t *cr, + int width, + int height, + int loops) +{ + /* Compute zoom so that the src_pattern covers the whole output image. */ + double xscale = width / (double) SRC_SIZE; + double yscale = height / (double) SRC_SIZE; + + cairo_perf_timer_start (); + + while (loops--) { + /* Fill the surface with our background. */ + cairo_identity_matrix (cr); + cairo_set_source (cr, checkerboard); + cairo_paint (cr); + + /* Draw the scaled image on top. */ + cairo_scale (cr, xscale, yscale); + cairo_set_source (cr, src_pattern); + cairo_paint (cr); + } + + cairo_perf_timer_stop (); + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +composite_checker_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "composite-checker", NULL); +} + +void +composite_checker (cairo_perf_t *perf, + cairo_t *cr, + int width, + int height) +{ + cairo_surface_t *image; + + /* Create the checker pattern. We don't actually need to draw + * anything on it since that wouldn't affect performance. + */ + image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + PAT_SIZE, + PAT_SIZE); + checkerboard = cairo_pattern_create_for_surface (image); + cairo_pattern_set_filter (checkerboard, CAIRO_FILTER_NEAREST); + cairo_pattern_set_extend (checkerboard, CAIRO_EXTEND_REPEAT); + cairo_surface_destroy (image); + + /* Create the image source pattern. Again we use the NEAREST + * filtering which should be fastest. + */ + image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + SRC_SIZE, + SRC_SIZE); + src_pattern = cairo_pattern_create_for_surface (image); + cairo_pattern_set_filter (src_pattern, CAIRO_FILTER_NEAREST); + cairo_surface_destroy (image); + + cairo_perf_run (perf, "composite-checker", do_composite_checker, NULL); + + cairo_pattern_destroy (checkerboard); + cairo_pattern_destroy (src_pattern); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/curve.c b/local/recipes/libs/cairo/source/perf/micro/curve.c new file mode 100644 index 0000000000..3b5a163422 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/curve.c @@ -0,0 +1,111 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-perf.h" + +static uint32_t state; + +static double +uniform_random (double minval, double maxval) +{ + static uint32_t const poly = 0x9a795537U; + uint32_t n = 32; + while (n-->0) + state = 2*state < state ? (2*state ^ poly) : 2*state; + return minval + state * (maxval - minval) / 4294967296.0; +} + +static cairo_time_t +do_curve_stroke (cairo_t *cr, int width, int height, int loops) +{ + state = 0xc0ffee; + cairo_set_line_width (cr, 2.); + cairo_perf_timer_start (); + + while (loops--) { + double x1 = uniform_random (0, width); + double x2 = uniform_random (0, width); + double x3 = uniform_random (0, width); + double y1 = uniform_random (0, height); + double y2 = uniform_random (0, height); + double y3 = uniform_random (0, height); + cairo_move_to (cr, uniform_random (0, width), uniform_random (0, height)); + cairo_curve_to (cr, x1, y1, x2, y2, x3, y3); + cairo_stroke(cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_curve_fill (cairo_t *cr, int width, int height, int loops) +{ + state = 0xc0ffee; + cairo_perf_timer_start (); + + while (loops--) { + double x0 = uniform_random (0, width); + double x1 = uniform_random (0, width); + double x2 = uniform_random (0, width); + double x3 = uniform_random (0, width); + double xm = uniform_random (0, width); + double xn = uniform_random (0, width); + double y0 = uniform_random (0, height); + double y1 = uniform_random (0, height); + double y2 = uniform_random (0, height); + double y3 = uniform_random (0, height); + double ym = uniform_random (0, height); + double yn = uniform_random (0, height); + + cairo_move_to (cr, xm, ym); + cairo_curve_to (cr, x1, y1, x2, y2, xn, yn); + cairo_curve_to (cr, x3, y3, x0, y0, xm, ym); + cairo_close_path (cr); + + cairo_fill(cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +curve_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "curve", NULL); +} + +void +curve (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1., 1., 1.); + + cairo_perf_run (perf, "curve-stroked", do_curve_stroke, NULL); + cairo_perf_run (perf, "curve-filled", do_curve_fill, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/disjoint.c b/local/recipes/libs/cairo/source/perf/micro/disjoint.c new file mode 100644 index 0000000000..847860c7e9 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/disjoint.c @@ -0,0 +1,101 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright (c) 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "cairo-perf.h" +#include + +#define STEP 5 + +static void path (cairo_t *cr, int width, int height) +{ + int i; + + cairo_rectangle (cr, 0, 0, width, height); + cairo_clip (cr); + + cairo_translate (cr, width/2, height/2); + cairo_rotate (cr, M_PI/4); + cairo_translate (cr, -width/2, -height/2); + + for (i = 0; i < width; i += STEP) { + cairo_rectangle (cr, i, -2, 1, height+4); + cairo_rectangle (cr, -2, i, width+4, 1); + } +} + +static void clip (cairo_t *cr, int width, int height) +{ + int i, j; + + for (j = 0; j < height; j += 2*STEP) { + for (i = 0; i < width; i += 2*STEP) + cairo_rectangle (cr, i, j, STEP, STEP); + + j += 2*STEP; + for (i = 0; i < width; i += 2*STEP) + cairo_rectangle (cr, i+STEP/2, j, STEP, STEP); + } + + cairo_clip (cr); +} + +static cairo_time_t +draw (cairo_t *cr, int width, int height, int loops) +{ + cairo_save (cr); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + + cairo_perf_timer_start (); + while (loops--) { + cairo_save (cr); + clip (cr, width, height); + path (cr, width, height); + cairo_fill (cr); + cairo_restore (cr); + } + cairo_perf_timer_stop (); + + cairo_restore (cr); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +disjoint_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "disjoint", NULL); +} + +void +disjoint (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + if (! cairo_perf_can_run (perf, "disjoint", NULL)) + return; + + cairo_perf_run (perf, "disjoint", draw, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/dragon.c b/local/recipes/libs/cairo/source/perf/micro/dragon.c new file mode 100644 index 0000000000..aa5daf534d --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/dragon.c @@ -0,0 +1,277 @@ +/* + * Copyright © 2007 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + * + * Inspiration (and path!) taken from + * http://labs.trolltech.com/blogs/2007/08/31/rasterizing-dragons/ + */ + +#include "cairo-perf.h" + +static inline int +next_pot (int v) +{ + v--; + v |= v >> 1; + v |= v >> 2; + v |= v >> 4; + v |= v >> 8; + v |= v >> 16; + v++; + return v; +} + +static cairo_bool_t +direction (int i) +{ + int pivot, np2; + + if (i < 2) + return TRUE; + + np2 = next_pot (i + 1); + if (np2 == i + 1) + return TRUE; + + pivot = np2 / 2 - 1; + return ! direction (2 * pivot - i); +} + +static void +path (cairo_t *cr, int step, int dir, int iterations) +{ + double dx, dy; + int i; + + switch (dir) { + default: + case 0: dx = step; dy = 0; break; + case 1: dx = -step; dy = 0; break; + case 2: dx = 0; dy = step; break; + case 3: dx = 0; dy = -step; break; + } + + for (i = 0; i < iterations; i++) { + cairo_rel_line_to (cr, dx, dy); + + if (direction (i)) { + double t = dx; + dx = dy; + dy = -t; + } else { + double t = dx; + dx = -dy; + dy = t; + } + } +} + +static cairo_time_t +do_dragon (cairo_t *cr, int width, int height, int loops) +{ + cairo_pattern_t *pattern; + double cx, cy, r; + + cx = cy = .5 * MAX (width, height); + r = .5 * MIN (width, height); + + cairo_perf_timer_start (); + + while (loops--) { + pattern = cairo_pattern_create_radial (cx, cy, 0., cx, cy, r); + cairo_pattern_add_color_stop_rgb (pattern, 0., .0, .0, .0); + cairo_pattern_add_color_stop_rgb (pattern, 0.25, .5, .4, .4); + cairo_pattern_add_color_stop_rgb (pattern, .5, .8, .8, .9); + cairo_pattern_add_color_stop_rgb (pattern, 1., .9, .9, 1.); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + cairo_paint (cr); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_set_line_width (cr, 4.); + + cairo_move_to (cr, cx, cy); + path (cr, 12, 0, 2048); + pattern = cairo_pattern_create_radial (cx, cy, 0., cx, cy, r); + cairo_pattern_add_color_stop_rgb (pattern, 0., 1., 1., 1.); + cairo_pattern_add_color_stop_rgb (pattern, 1., 0., 0., 0.); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + cairo_stroke(cr); + + cairo_move_to (cr, cx, cy); + path (cr, 12, 1, 2048); + pattern = cairo_pattern_create_radial (cx, cy, 0., cx, cy, r); + cairo_pattern_add_color_stop_rgb (pattern, 1., 1., 1., 0.); + cairo_pattern_add_color_stop_rgb (pattern, 0., 1., 0., 0.); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + cairo_stroke(cr); + + cairo_move_to (cr, cx, cy); + path (cr, 12, 2, 2048); + pattern = cairo_pattern_create_radial (cx, cy, 0., cx, cy, r); + cairo_pattern_add_color_stop_rgb (pattern, 1., 0., 1., 1.); + cairo_pattern_add_color_stop_rgb (pattern, 0., 0., 1., 0.); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + cairo_stroke(cr); + + cairo_move_to (cr, cx, cy); + path (cr, 12, 3, 2048); + pattern = cairo_pattern_create_radial (cx, cy, 0., cx, cy, r); + cairo_pattern_add_color_stop_rgb (pattern, 1., 1., 0., 1.); + cairo_pattern_add_color_stop_rgb (pattern, 0., 0., 0., 1.); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + cairo_stroke(cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_dragon_solid (cairo_t *cr, int width, int height, int loops) +{ + double cx, cy; + + cx = cy = .5 * MAX (width, height); + + cairo_perf_timer_start (); + + while (loops--) { + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_set_line_width (cr, 4.); + + cairo_move_to (cr, cx, cy); + path (cr, 12, 0, 2048); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_stroke(cr); + + cairo_move_to (cr, cx, cy); + path (cr, 12, 1, 2048); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_stroke(cr); + + cairo_move_to (cr, cx, cy); + path (cr, 12, 2, 2048); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_stroke(cr); + + cairo_move_to (cr, cx, cy); + path (cr, 12, 3, 2048); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_stroke(cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_dragon_solid_unaligned (cairo_t *cr, int width, int height, int loops) +{ + cairo_translate (cr, 0.01, 0.01); + return do_dragon_solid (cr, width, height, loops); +} + +static cairo_time_t +do_dragon_solid_aligned_clip (cairo_t *cr, int width, int height, int loops) +{ + cairo_reset_clip (cr); + cairo_rectangle (cr, 10, 10, width/2 + 10, height/2 + 10); + cairo_rectangle (cr, width/2-20, height/2-20, width/2 + 10, height/2 + 10); + cairo_clip (cr); + + return do_dragon_solid (cr, width, height, loops); +} + +static cairo_time_t +do_dragon_unaligned_solid_aligned_clip (cairo_t *cr, int width, int height, int loops) +{ + cairo_translate (cr, 0.01, 0.01); + cairo_reset_clip (cr); + cairo_rectangle (cr, 10, 10, width/2 + 10, height/2 + 10); + cairo_rectangle (cr, width/2-20, height/2-20, width/2 + 10, height/2 + 10); + cairo_clip (cr); + + return do_dragon_solid (cr, width, height, loops); +} + +static cairo_time_t +do_dragon_solid_unaligned_clip (cairo_t *cr, int width, int height, int loops) +{ + cairo_reset_clip (cr); + cairo_rectangle (cr, 10.5, 10.5, width/2 + 10, height/2 + 10); + cairo_rectangle (cr, width/2-20, height/2-20, width/2 + 9.5, height/2 + 9.5); + cairo_clip (cr); + + return do_dragon_solid (cr, width, height, loops); +} + +static cairo_time_t +do_dragon_unaligned_solid_unaligned_clip (cairo_t *cr, int width, int height, int loops) +{ + cairo_translate (cr, 0.01, 0.01); + cairo_reset_clip (cr); + cairo_rectangle (cr, 10.5, 10.5, width/2 + 10, height/2 + 10); + cairo_rectangle (cr, width/2-20, height/2-20, width/2 + 9.5, height/2 + 9.5); + cairo_clip (cr); + + return do_dragon_solid (cr, width, height, loops); +} + +static cairo_time_t +do_dragon_solid_circle_clip (cairo_t *cr, int width, int height, int loops) +{ + cairo_reset_clip (cr); + cairo_arc (cr, width/2., height/2., MIN (width, height)/2. - 10, 0, 2 * M_PI); + cairo_clip (cr); + + return do_dragon_solid (cr, width, height, loops); +} + +cairo_bool_t +dragon_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "dragon", NULL); +} + +void +dragon (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "dragon-solid", do_dragon_solid, NULL); + cairo_perf_run (perf, "dragon-unaligned-solid", do_dragon_solid_unaligned, NULL); + cairo_perf_run (perf, "dragon-solid-aligned-clip", do_dragon_solid_aligned_clip, NULL); + cairo_perf_run (perf, "dragon-unaligned-solid-aligned-clip", do_dragon_unaligned_solid_aligned_clip, NULL); + cairo_perf_run (perf, "dragon-solid-unaligned-clip", do_dragon_solid_unaligned_clip, NULL); + cairo_perf_run (perf, "dragon-unaligned-solid-unaligned-clip", do_dragon_unaligned_solid_unaligned_clip, NULL); + cairo_perf_run (perf, "dragon-solid-circle-clip", do_dragon_solid_circle_clip, NULL); + cairo_perf_run (perf, "dragon", do_dragon, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/fill-clip.c b/local/recipes/libs/cairo/source/perf/micro/fill-clip.c new file mode 100644 index 0000000000..f9802705f4 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/fill-clip.c @@ -0,0 +1,128 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +/* Compares the overhead for WebKit's drawRect() */ + +#include "cairo-perf.h" + +#include + +static cairo_time_t +clip_paint (cairo_t *cr, int width, int height, int loops) +{ + int x = width/4, w = width/2; + int y = height/4, h = height/2; + + cairo_perf_timer_start (); + + while (loops--) { + cairo_reset_clip (cr); + cairo_rectangle (cr, x, y, w, h); + cairo_clip (cr); + cairo_paint (cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +rect_fill (cairo_t *cr, int width, int height, int loops) +{ + int x = width/4, w = width/2; + int y = height/4, h = height/2; + + cairo_perf_timer_start (); + + while (loops--) { + cairo_rectangle (cr, x, y, w, h); + cairo_fill (cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +direct (cairo_t *cr, int width, int height, int loops) +{ + int x = width/4, w = width/2; + int y = height/4, h = height/2; + cairo_surface_t *surface, *image; + uint8_t *data; + int stride, bpp; + + + surface = cairo_get_target (cr); + image = cairo_surface_map_to_image (surface, NULL); + data = cairo_image_surface_get_data (image); + stride = cairo_image_surface_get_stride (image); + + switch (cairo_image_surface_get_format (image)) { + default: + case CAIRO_FORMAT_INVALID: + case CAIRO_FORMAT_A1: bpp = 0; break; + case CAIRO_FORMAT_A8: bpp = 8; break; + case CAIRO_FORMAT_RGB16_565: bpp = 16; break; + case CAIRO_FORMAT_RGB24: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_ARGB32: bpp = 32; break; + case CAIRO_FORMAT_RGB96F: bpp = 96; break; + case CAIRO_FORMAT_RGBA128F: bpp = 128; break; + } + + cairo_perf_timer_start (); + + while (loops--) { + pixman_fill ((uint32_t *)data, stride / sizeof(uint32_t), bpp, + x, y, w, h, + -1); + } + + cairo_perf_timer_stop (); + + cairo_surface_unmap_image (surface, image); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +fill_clip_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "fillclip", NULL); +} + +void +fill_clip (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1., 1., 1.); + + cairo_perf_run (perf, "fillclip-clip", clip_paint, NULL); + cairo_perf_run (perf, "fillclip-fill", rect_fill, NULL); + cairo_perf_run (perf, "fillclip-direct", direct, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/fill.c b/local/recipes/libs/cairo/source/perf/micro/fill.c new file mode 100644 index 0000000000..d356c26d5c --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/fill.c @@ -0,0 +1,122 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-perf.h" + +static cairo_time_t +do_fill (cairo_t *cr, int width, int height, int loops) +{ + cairo_arc (cr, + width/2.0, height/2.0, + width/3.0, + 0, 2 * M_PI); + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_fill_annuli (cairo_t *cr, int width, int height, int loops) +{ + cairo_new_sub_path (cr); + cairo_arc (cr, + width/2.0, height/2.0, + width/3.0, + 0, 2 * M_PI); + + cairo_new_sub_path (cr); + cairo_arc_negative (cr, + width/2.0, height/2.0, + width/4.0, + 2 * M_PI, 0); + + cairo_new_sub_path (cr); + cairo_arc (cr, + width/2.0, height/2.0, + width/6.0, + 0, 2 * M_PI); + + cairo_new_sub_path (cr); + cairo_arc_negative (cr, + width/2.0, height/2.0, + width/8.0, + 2 * M_PI, 0); + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_fill_eo_noaa (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + + cairo_arc (cr, + width/2.0, height/2.0, + width/3.0, + 0, 2 * M_PI); + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +fill_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "fill", NULL); +} + +void +fill (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_cover_sources_and_operators (perf, "fill", do_fill, NULL); + cairo_perf_cover_sources_and_operators (perf, "fill-annuli", do_fill_annuli, NULL); + cairo_perf_cover_sources_and_operators (perf, "fill-eo-noaa", do_fill_eo_noaa, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/glyphs.c b/local/recipes/libs/cairo/source/perf/micro/glyphs.c new file mode 100644 index 0000000000..5f088b29e3 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/glyphs.c @@ -0,0 +1,202 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + * Chris Wilson + */ + +#include "cairo-perf.h" + +static cairo_time_t +do_glyphs (double font_size, + cairo_antialias_t antialias, + cairo_t *cr, int width, int height, int loops) +{ + const char text[] = "the jay, pig, fox, zebra and my wolves quack"; + cairo_scaled_font_t *scaled_font; + cairo_glyph_t *glyphs = NULL, *glyphs_copy; + cairo_text_extents_t extents; + cairo_font_options_t *options; + cairo_status_t status; + double x, y; + int num_glyphs, n; + + options = cairo_font_options_create (); + cairo_font_options_set_antialias (options, antialias); + cairo_set_font_options (cr, options); + cairo_font_options_destroy (options); + + cairo_select_font_face (cr, + "@cairo:", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, font_size); + scaled_font = cairo_get_scaled_font (cr); + status = cairo_scaled_font_text_to_glyphs (scaled_font, 0., 0., + text, -1, + &glyphs, &num_glyphs, + NULL, NULL, + NULL); + if (status) + return 0; + + glyphs_copy = cairo_glyph_allocate (num_glyphs); + if (glyphs_copy == NULL) { + cairo_glyph_free (glyphs); + return 0; + } + + cairo_scaled_font_glyph_extents (scaled_font, + glyphs, num_glyphs, + &extents); + + cairo_perf_timer_start (); + + while (loops--) { + y = 0; + do { + x = 0; + do { + for (n = 0; n < num_glyphs; n++) { + glyphs_copy[n] = glyphs[n]; + glyphs_copy[n].x += x; + glyphs_copy[n].y += y; + } + cairo_show_glyphs (cr, glyphs_copy, num_glyphs); + + x += extents.width; + } while (x < width); + y += extents.height; + } while (y < height); + } + + cairo_perf_timer_stop (); + + cairo_glyph_free (glyphs); + cairo_glyph_free (glyphs_copy); + + return cairo_perf_timer_elapsed (); +} + +static double +count_glyphs (double font_size, + cairo_antialias_t antialias, + cairo_t *cr, int width, int height) +{ + const char text[] = "the jay, pig, fox, zebra and my wolves quack"; + cairo_scaled_font_t *scaled_font; + cairo_glyph_t *glyphs = NULL; + cairo_text_extents_t extents; + cairo_font_options_t *options; + cairo_status_t status; + int num_glyphs; + int glyphs_per_line, lines_per_loop; + + options = cairo_font_options_create (); + cairo_font_options_set_antialias (options, antialias); + cairo_set_font_options (cr, options); + cairo_font_options_destroy (options); + + cairo_select_font_face (cr, + "@cairo:", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, font_size); + scaled_font = cairo_get_scaled_font (cr); + status = cairo_scaled_font_text_to_glyphs (scaled_font, 0., 0., + text, -1, + &glyphs, &num_glyphs, + NULL, NULL, + NULL); + if (status) + return 0; + + cairo_scaled_font_glyph_extents (scaled_font, + glyphs, num_glyphs, + &extents); + cairo_glyph_free (glyphs); + + glyphs_per_line = num_glyphs * width / extents.width + 1; + lines_per_loop = height / extents.height + 1; + return glyphs_per_line * lines_per_loop / 1000.; /* kiloglyphs */ +} + +#define DECL(name,size, aa) \ +static cairo_time_t \ +do_glyphs##name (cairo_t *cr, int width, int height, int loops) \ +{ \ + return do_glyphs (size, aa, cr, width, height, loops); \ +} \ +\ +static double \ +count_glyphs##name (cairo_t *cr, int width, int height) \ +{ \ + return count_glyphs (size, aa, cr, width, height); \ +} + +DECL(8, 8, CAIRO_ANTIALIAS_GRAY) +DECL(10, 10, CAIRO_ANTIALIAS_GRAY) +DECL(12, 12, CAIRO_ANTIALIAS_GRAY) +DECL(16, 16, CAIRO_ANTIALIAS_GRAY) +DECL(20, 20, CAIRO_ANTIALIAS_GRAY) +DECL(24, 24, CAIRO_ANTIALIAS_GRAY) +DECL(32, 32, CAIRO_ANTIALIAS_GRAY) +DECL(40, 40, CAIRO_ANTIALIAS_GRAY) +DECL(48, 48, CAIRO_ANTIALIAS_GRAY) + +DECL(8ca, 8, CAIRO_ANTIALIAS_SUBPIXEL) +DECL(48ca, 48, CAIRO_ANTIALIAS_SUBPIXEL) + +DECL(8mono, 8, CAIRO_ANTIALIAS_NONE) +DECL(48mono, 48, CAIRO_ANTIALIAS_NONE) + +cairo_bool_t +glyphs_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "glyphs", NULL); +} + +void +glyphs (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_cover_sources_and_operators (perf, "glyphs8mono", do_glyphs8mono, count_glyphs8mono); + cairo_perf_cover_sources_and_operators (perf, "glyphs8", do_glyphs8, count_glyphs8); + cairo_perf_cover_sources_and_operators (perf, "glyphs8ca", do_glyphs8ca, count_glyphs8ca); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_perf_run (perf, "glyphs8", do_glyphs8, count_glyphs8); + cairo_perf_run (perf, "glyphs10", do_glyphs10, count_glyphs10); + cairo_perf_run (perf, "glyphs12", do_glyphs12, count_glyphs12); + cairo_perf_run (perf, "glyphs16", do_glyphs16, count_glyphs16); + cairo_perf_run (perf, "glyphs20", do_glyphs20, count_glyphs20); + cairo_perf_run (perf, "glyphs24", do_glyphs24, count_glyphs24); + cairo_perf_run (perf, "glyphs32", do_glyphs32, count_glyphs32); + cairo_perf_run (perf, "glyphs40", do_glyphs40, count_glyphs40); + cairo_perf_run (perf, "glyphs48", do_glyphs48, count_glyphs48); + + cairo_perf_cover_sources_and_operators (perf, "glyphs48mono", do_glyphs48mono, count_glyphs48mono); + cairo_perf_cover_sources_and_operators (perf, "glyphs48", do_glyphs48, count_glyphs48); + cairo_perf_cover_sources_and_operators (perf, "glyphs48ca", do_glyphs48ca, count_glyphs48ca); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/hash-table.c b/local/recipes/libs/cairo/source/perf/micro/hash-table.c new file mode 100644 index 0000000000..d16291770e --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/hash-table.c @@ -0,0 +1,115 @@ +/* + * Copyright © 2011 Andrea Canciani + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-perf.h" + +#define ITER 1000 +#define HOLDOVERS 256 +#define LIVE_ENTRIES 257 +#define ACTIVE_FONTS (LIVE_ENTRIES - HOLDOVERS - 1) + +/* + * The original implementation of hash tables was very inefficient, as + * pointed out in https://bugs.freedesktop.org/show_bug.cgi?id=17399 + * + * This benchmark tries to fill up the scaled_font_map hash table to + * show the O(n) behavior. + */ + +static cairo_time_t +do_hash_table (cairo_t *cr, int width, int height, int loops) +{ + /* + * Microsoft C Compiler complains that: + * error C2466: cannot allocate an array of constant size 0 + * so we add an unused element to make it happy + */ + cairo_scaled_font_t *active_fonts[ACTIVE_FONTS + 1]; + cairo_matrix_t m; + int i; + + cairo_matrix_init_identity (&m); + + /* Touch HOLDOVERS scaled fonts to fill up the holdover list. */ + for (i = 0; i < HOLDOVERS; i++) { + m.yy = m.xx * (i + 1); + cairo_set_font_matrix (cr, &m); + cairo_get_scaled_font (cr); + } + + /* + * Reference some scaled fonts so that they will be kept in the + * scaled fonts map. We want LIVE_ENTRIES elements in the font + * map, but cairo keeps HOLDOVERS recently used fonts in it and we + * will be activating a new font in the cr context, so we just + * keep references to ACTIVE_FONTS fonts. + * + * Note: setting LIVE_ENTRIES == HOLDOVERS+1 means that we keep no + * font in active_fonts and the slowness is caused by the holdover + * fonts only. + */ + for (i = 0; i < ACTIVE_FONTS; i++) { + cairo_scaled_font_t *scaled_font; + + m.yy = m.xx * (i + 1); + cairo_set_font_matrix (cr, &m); + + scaled_font = cairo_get_scaled_font (cr); + active_fonts[i] = cairo_scaled_font_reference (scaled_font); + } + + cairo_perf_timer_start (); + + while (loops--) { + m.xx += 1.0; + + /* Generate ITER new scaled fonts per loop */ + for (i = 0; i < ITER; i++) { + m.yy = m.xx * (i + 1); + cairo_set_font_matrix (cr, &m); + cairo_get_scaled_font (cr); + } + } + + cairo_perf_timer_stop (); + + for (i = 0; i < ACTIVE_FONTS; i++) + cairo_scaled_font_destroy (active_fonts[i]); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +hash_table_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "hash-table", NULL); +} + +void +hash_table (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_cover_sources_and_operators (perf, "hash-table", + do_hash_table, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/hatching.c b/local/recipes/libs/cairo/source/perf/micro/hatching.c new file mode 100644 index 0000000000..d1d9fb8a6f --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/hatching.c @@ -0,0 +1,202 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright (c) 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "cairo-perf.h" +#include + + +#define STEP 5 +#define WIDTH 100 +#define HEIGHT 100 + +static void path (cairo_t *cr, unsigned int width, unsigned int height) +{ + unsigned int i; + + for (i = 0; i < width+1; i += STEP) { + cairo_rectangle (cr, i-1, -1, 2, height+2); + cairo_rectangle (cr, -1, i-1, width+2, 2); + } +} + +static void aa (cairo_t *cr) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_DEFAULT); +} + +static void mono (cairo_t *cr) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); +} + +static void aligned (cairo_t *cr, int width, int height) +{ +} + +static void misaligned (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, 0.25, 0.25); +} + +static void rotated (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, width/2, height/2); + cairo_rotate (cr, M_PI/4); + cairo_translate (cr, -width/2, -height/2); +} + +static void clip (cairo_t *cr) +{ + cairo_clip (cr); + cairo_paint (cr); +} + +static void clip_alpha (cairo_t *cr) +{ + cairo_clip (cr); + cairo_paint_with_alpha (cr, .5); +} + +static cairo_time_t +draw (cairo_t *cr, + void (*prepare) (cairo_t *cr), + void (*transform) (cairo_t *cr, int width, int height), + void (*op) (cairo_t *cr), + int width, int height, int loops) +{ + cairo_save (cr); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + + prepare (cr); + + cairo_perf_timer_start (); + while (loops--) { + cairo_save (cr); + transform (cr, width, height); + path (cr, width, height); + op (cr); + cairo_restore (cr); + } + cairo_perf_timer_stop (); + + cairo_restore (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +draw_aligned_aa (cairo_t *cr, int width, int height, int loops) +{ + return draw(cr, aa, aligned, cairo_fill, + width, height, loops); +} + +static cairo_time_t +draw_misaligned_aa (cairo_t *cr, int width, int height, int loops) +{ + return draw(cr, aa, misaligned, cairo_fill, + width, height, loops); +} + +static cairo_time_t +draw_rotated_aa (cairo_t *cr, int width, int height, int loops) +{ + return draw(cr, aa, rotated, cairo_fill, + width, height, loops); +} + +static cairo_time_t +draw_aligned_mono (cairo_t *cr, int width, int height, int loops) +{ + return draw(cr, mono, aligned, cairo_fill, + width, height, loops); +} + +static cairo_time_t +draw_misaligned_mono (cairo_t *cr, int width, int height, int loops) +{ + return draw(cr, mono, misaligned, cairo_fill, + width, height, loops); +} + +static cairo_time_t +draw_rotated_mono (cairo_t *cr, int width, int height, int loops) +{ + return draw(cr, mono, rotated, cairo_fill, + width, height, loops); +} + +#define F(name, op,transform,aa) \ +static cairo_time_t \ +draw_##name (cairo_t *cr, int width, int height, int loops) \ +{ return draw(cr, (aa), (transform), (op), width, height, loops); } + +F(clip_aligned, clip, aligned, aa) +F(clip_misaligned, clip, misaligned, aa) +F(clip_rotated, clip, rotated, aa) +F(clip_aligned_mono, clip, aligned, mono) +F(clip_misaligned_mono, clip, misaligned, mono) +F(clip_rotated_mono, clip, rotated, mono) + +F(clip_alpha_aligned, clip_alpha, aligned, aa) +F(clip_alpha_misaligned, clip_alpha, misaligned, aa) +F(clip_alpha_rotated, clip_alpha, rotated, aa) +F(clip_alpha_aligned_mono, clip_alpha, aligned, mono) +F(clip_alpha_misaligned_mono, clip_alpha, misaligned, mono) +F(clip_alpha_rotated_mono, clip_alpha, rotated, mono) + +cairo_bool_t +hatching_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "hatching", NULL); +} + +void +hatching (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "hatching-aligned-aa", draw_aligned_aa, NULL); + cairo_perf_run (perf, "hatching-misaligned-aa", draw_misaligned_aa, NULL); + cairo_perf_run (perf, "hatching-rotated-aa", draw_rotated_aa, NULL); + cairo_perf_run (perf, "hatching-aligned-mono", draw_aligned_mono, NULL); + cairo_perf_run (perf, "hatching-misaligned-mono", draw_misaligned_mono, NULL); + cairo_perf_run (perf, "hatching-rotated-mono", draw_rotated_mono, NULL); + + cairo_perf_run (perf, "hatching-clip-aligned-aa", draw_clip_aligned, NULL); + cairo_perf_run (perf, "hatching-clip-misaligned-aa", draw_clip_misaligned, NULL); + cairo_perf_run (perf, "hatching-clip-rotated-aa", draw_clip_rotated, NULL); + cairo_perf_run (perf, "hatching-clip-aligned-mono", draw_clip_aligned_mono, NULL); + cairo_perf_run (perf, "hatching-clip-misaligned-mono", draw_clip_misaligned_mono, NULL); + cairo_perf_run (perf, "hatching-clip-rotated-mono", draw_clip_rotated_mono, NULL); + + cairo_perf_run (perf, "hatching-clip-alpha-aligned-aa", draw_clip_alpha_aligned, NULL); + cairo_perf_run (perf, "hatching-clip-alpha-misaligned-aa", draw_clip_alpha_misaligned, NULL); + cairo_perf_run (perf, "hatching-clip-alpha-rotated-aa", draw_clip_alpha_rotated, NULL); + cairo_perf_run (perf, "hatching-clip-alpha-aligned-mono", draw_clip_alpha_aligned_mono, NULL); + cairo_perf_run (perf, "hatching-clip-alpha-misaligned-mono", draw_clip_alpha_misaligned_mono, NULL); + cairo_perf_run (perf, "hatching-clip-alpha-rotated-mono", draw_clip_alpha_rotated_mono, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/intersections.c b/local/recipes/libs/cairo/source/perf/micro/intersections.c new file mode 100644 index 0000000000..57931faf8c --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/intersections.c @@ -0,0 +1,160 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright (c) 2008 M Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "cairo-perf.h" + +#define NUM_SEGMENTS 256 + +static unsigned state; +static double +uniform_random (double minval, double maxval) +{ + static unsigned const poly = 0x9a795537U; + unsigned n = 32; + while (n-->0) + state = 2*state < state ? (2*state ^ poly) : 2*state; + return minval + state * (maxval - minval) / 4294967296.0; +} + +static cairo_time_t +draw_random (cairo_t *cr, cairo_fill_rule_t fill_rule, + int width, int height, int loops) +{ + double x[NUM_SEGMENTS]; + double y[NUM_SEGMENTS]; + int i; + + cairo_save (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + for (i = 0; i < NUM_SEGMENTS; i++) { + x[i] = uniform_random (0, width); + y[i] = uniform_random (0, height); + } + + state = 0x12345678; + cairo_translate (cr, 1, 1); + cairo_set_fill_rule (cr, fill_rule); + cairo_set_source_rgb (cr, 1, 0, 0); + + cairo_new_path (cr); + cairo_move_to (cr, 0, 0); + for (i = 0; i < NUM_SEGMENTS; i++) + cairo_line_to (cr, x[i], y[i]); + cairo_close_path (cr); + + cairo_perf_timer_start (); + while (loops--) + cairo_fill_preserve (cr); + cairo_perf_timer_stop (); + + cairo_restore (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +draw_random_curve (cairo_t *cr, cairo_fill_rule_t fill_rule, + int width, int height, int loops) +{ + double x[3*NUM_SEGMENTS]; + double y[3*NUM_SEGMENTS]; + int i; + + cairo_save (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + for (i = 0; i < 3*NUM_SEGMENTS; i++) { + x[i] = uniform_random (0, width); + y[i] = uniform_random (0, height); + } + + state = 0x12345678; + cairo_translate (cr, 1, 1); + cairo_set_fill_rule (cr, fill_rule); + cairo_set_source_rgb (cr, 1, 0, 0); + + cairo_new_path (cr); + cairo_move_to (cr, 0, 0); + for (i = 0; i < NUM_SEGMENTS; i++) { + cairo_curve_to (cr, + x[3*i+0], y[3*i+0], + x[3*i+1], y[3*i+1], + x[3*i+2], y[3*i+2]); + } + cairo_close_path (cr); + + cairo_perf_timer_start (); + while (loops--) + cairo_fill_preserve (cr); + cairo_perf_timer_stop (); + + cairo_restore (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +random_eo (cairo_t *cr, int width, int height, int loops) +{ + return draw_random (cr, CAIRO_FILL_RULE_EVEN_ODD, width, height, loops); +} + +static cairo_time_t +random_nz (cairo_t *cr, int width, int height, int loops) +{ + return draw_random (cr, CAIRO_FILL_RULE_WINDING, width, height, loops); +} + +static cairo_time_t +random_curve_eo (cairo_t *cr, int width, int height, int loops) +{ + return draw_random_curve (cr, CAIRO_FILL_RULE_EVEN_ODD, width, height, loops); +} + +static cairo_time_t +random_curve_nz (cairo_t *cr, int width, int height, int loops) +{ + return draw_random_curve (cr, CAIRO_FILL_RULE_WINDING, width, height, loops); +} + +cairo_bool_t +intersections_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "intersections", NULL); +} + +void +intersections (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "intersections-nz-fill", random_nz, NULL); + cairo_perf_run (perf, "intersections-eo-fill", random_eo, NULL); + + cairo_perf_run (perf, "intersections-nz-curve-fill", random_curve_nz, NULL); + cairo_perf_run (perf, "intersections-eo-curve-fill", random_curve_eo, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/line.c b/local/recipes/libs/cairo/source/perf/micro/line.c new file mode 100644 index 0000000000..3ed5f8dacf --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/line.c @@ -0,0 +1,222 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-perf.h" + +static cairo_time_t +horizontal (cairo_t *cr, int width, int height, int loops) +{ + double h = height/2 + .5; + + cairo_move_to (cr, 0, h); + cairo_line_to (cr, width, h); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +horizontal_hair (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 1.); + return horizontal (cr, width, height, loops); +} + +static cairo_time_t +horizontal_wide (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 5.); + return horizontal (cr, width, height, loops); +} + +static cairo_time_t +nearly_horizontal (cairo_t *cr, int width, int height, int loops) +{ + double h = height/2; + + cairo_move_to (cr, 0, h); + cairo_line_to (cr, width, h+1); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +nearly_horizontal_hair (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 1.); + return nearly_horizontal (cr, width, height, loops); +} + +static cairo_time_t +nearly_horizontal_wide (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 5.); + return nearly_horizontal (cr, width, height, loops); +} + + +static cairo_time_t +vertical (cairo_t *cr, int width, int height, int loops) +{ + double w = width/2 + .5; + + cairo_move_to (cr, w, 0); + cairo_line_to (cr, w, height); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +vertical_hair (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 1.); + return vertical (cr, width, height, loops); +} + +static cairo_time_t +vertical_wide (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 5.); + return vertical (cr, width, height, loops); +} + +static cairo_time_t +nearly_vertical (cairo_t *cr, int width, int height, int loops) +{ + double w = width/2; + + cairo_move_to (cr, w, 0); + cairo_line_to (cr, w+1, height); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +nearly_vertical_hair (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 1.); + return nearly_vertical (cr, width, height, loops); +} + +static cairo_time_t +nearly_vertical_wide (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 5.); + return nearly_vertical (cr, width, height, loops); +} + + +static cairo_time_t +diagonal (cairo_t *cr, int width, int height, int loops) +{ + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, width, height); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +diagonal_hair (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 1.); + return diagonal (cr, width, height, loops); +} + +static cairo_time_t +diagonal_wide (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 5.); + return diagonal (cr, width, height, loops); +} + +cairo_bool_t +line_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "line", NULL); +} + +void +line (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1., 1., 1.); + + cairo_perf_run (perf, "line-hh", horizontal_hair, NULL); + cairo_perf_run (perf, "line-hw", horizontal_wide, NULL); + cairo_perf_run (perf, "line-nhh", nearly_horizontal_hair, NULL); + cairo_perf_run (perf, "line-nhw", nearly_horizontal_wide, NULL); + + cairo_perf_run (perf, "line-vh", vertical_hair, NULL); + cairo_perf_run (perf, "line-vw", vertical_wide, NULL); + cairo_perf_run (perf, "line-nvh", nearly_vertical_hair, NULL); + cairo_perf_run (perf, "line-nvw", nearly_vertical_wide, NULL); + + cairo_perf_run (perf, "line-dh", diagonal_hair, NULL); + cairo_perf_run (perf, "line-dw", diagonal_wide, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/long-dashed-lines.c b/local/recipes/libs/cairo/source/perf/micro/long-dashed-lines.c new file mode 100644 index 0000000000..ba66a4af42 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/long-dashed-lines.c @@ -0,0 +1,74 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* + * Copyright © 2007 Mozilla Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Vladimir Vukicevic + */ + +#include "cairo-perf.h" + +static cairo_time_t +do_long_dashed_lines (cairo_t *cr, int width, int height, int loops) +{ + double dash[2] = { 2.0, 2.0 }; + int i; + + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + cairo_set_dash (cr, dash, 2, 0.0); + + cairo_new_path (cr); + cairo_set_line_width (cr, 1.0); + + for (i = 0; i < height-1; i++) { + double y0 = (double) i + 0.5; + cairo_move_to (cr, 0.0, y0); + cairo_line_to (cr, width, y0); + } + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_restore (cr); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +long_dashed_lines_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "long-dashed-lines", NULL); +} + +void +long_dashed_lines (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "long-dashed-lines", do_long_dashed_lines, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/long-lines.c b/local/recipes/libs/cairo/source/perf/micro/long-lines.c new file mode 100644 index 0000000000..7bfe624cbb --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/long-lines.c @@ -0,0 +1,148 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-perf.h" + +/* This test case is designed to illustrate a performance bug in + * drawing very long lines, where most of the line is out of bounds of + * the destination surface, (but some portion of the line is + * visible). These results are in the "long-lines-uncropped" report. + * + * For comparison, this test also renders the visible portions of the + * same lines, (this is the "long-lines-cropped" report). + */ + +typedef enum { + LONG_LINES_CROPPED = 0x1, + LONG_LINES_ONCE = 0x2, +} long_lines_crop_t; +#define NUM_LINES 20 +#define LONG_FACTOR 50.0 + +static cairo_time_t +do_long_lines (cairo_t *cr, int width, int height, int loops, long_lines_crop_t crop) +{ + int i; + double x, y, dx, dy, min_x, min_y, max_x, max_y; + double outer_width, outer_height; + + cairo_save (cr); + + cairo_translate (cr, width / 2, height / 2); + + if (crop & LONG_LINES_CROPPED) { + outer_width = width; + outer_height = height; + cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); /* green */ + } else { + outer_width = LONG_FACTOR * width; + outer_height = LONG_FACTOR * height; + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); /* red */ + } + + min_x = x = - outer_width / 2.0; + min_y = y = - outer_height / 2.0; + max_x = outer_width / 2.0; + max_y = outer_height / 2.0; + dx = outer_width / NUM_LINES; + dy = outer_height / NUM_LINES; + + cairo_perf_timer_start (); + + while (loops--) { + for (i = 0; i <= NUM_LINES; i++) { + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, x, min_y); + if ((crop & LONG_LINES_ONCE) == 0) + cairo_stroke (cr); + + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, x, max_y); + if ((crop & LONG_LINES_ONCE) == 0) + cairo_stroke (cr); + + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, min_x, y); + if ((crop & LONG_LINES_ONCE) == 0) + cairo_stroke (cr); + + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, max_x, y); + if ((crop & LONG_LINES_ONCE) == 0) + cairo_stroke (cr); + + x += dx; + y += dy; + } + if (crop & LONG_LINES_ONCE) + cairo_stroke (cr); + } + + cairo_perf_timer_stop (); + + cairo_restore (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +long_lines_uncropped (cairo_t *cr, int width, int height, int loops) +{ + return do_long_lines (cr, width, height, loops, 0); +} + +static cairo_time_t +long_lines_uncropped_once (cairo_t *cr, int width, int height, int loops) +{ + return do_long_lines (cr, width, height, loops, LONG_LINES_ONCE); +} + +static cairo_time_t +long_lines_cropped (cairo_t *cr, int width, int height, int loops) +{ + return do_long_lines (cr, width, height, loops, LONG_LINES_CROPPED); +} + +static cairo_time_t +long_lines_cropped_once (cairo_t *cr, int width, int height, int loops) +{ + return do_long_lines (cr, width, height, loops, LONG_LINES_CROPPED | LONG_LINES_ONCE); +} + +cairo_bool_t +long_lines_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "long-lines", NULL); +} + +void +long_lines (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "long-lines-uncropped", long_lines_uncropped, NULL); + cairo_perf_run (perf, "long-lines-uncropped-once", long_lines_uncropped_once, NULL); + cairo_perf_run (perf, "long-lines-cropped", long_lines_cropped, NULL); + cairo_perf_run (perf, "long-lines-cropped-once", long_lines_cropped_once, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/many-curves.c b/local/recipes/libs/cairo/source/perf/micro/many-curves.c new file mode 100644 index 0000000000..f985d349a6 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/many-curves.c @@ -0,0 +1,135 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-perf.h" + +static uint32_t state; + +static double +uniform_random (double minval, double maxval) +{ + static uint32_t const poly = 0x9a795537U; + uint32_t n = 32; + while (n-->0) + state = 2*state < state ? (2*state ^ poly) : 2*state; + return minval + state * (maxval - minval) / 4294967296.0; +} + +static cairo_time_t +do_many_curves_stroked (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + cairo_move_to (cr, uniform_random (0, width), uniform_random (0, height)); + for (count = 0; count < 1000; count++) { + double x1 = uniform_random (0, width); + double x2 = uniform_random (0, width); + double x3 = uniform_random (0, width); + double y1 = uniform_random (0, height); + double y2 = uniform_random (0, height); + double y3 = uniform_random (0, height); + cairo_curve_to (cr, x1, y1, x2, y2, x3, y3); + } + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_many_curves_hair_stroked (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 1.); + return do_many_curves_stroked (cr, width, height, loops); +} + +static cairo_time_t +do_many_curves_wide_stroked (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 5.); + return do_many_curves_stroked (cr, width, height, loops); +} + +static cairo_time_t +do_many_curves_filled (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double x0 = uniform_random (0, width); + double x1 = uniform_random (0, width); + double x2 = uniform_random (0, width); + double x3 = uniform_random (0, width); + double xm = uniform_random (0, width); + double xn = uniform_random (0, width); + double y0 = uniform_random (0, height); + double y1 = uniform_random (0, height); + double y2 = uniform_random (0, height); + double y3 = uniform_random (0, height); + double ym = uniform_random (0, height); + double yn = uniform_random (0, height); + cairo_move_to (cr, xm, ym); + cairo_curve_to (cr, x1, y1, x2, y2, xn, yn); + cairo_curve_to (cr, x3, y3, x0, y0, xm, ym); + cairo_close_path (cr); + } + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +many_curves_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "many-curves", NULL); +} + +void +many_curves (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1., 1., 1.); + + cairo_perf_run (perf, "many-curves-hair-stroked", do_many_curves_hair_stroked, NULL); + cairo_perf_run (perf, "many-curves-wide-stroked", do_many_curves_wide_stroked, NULL); + cairo_perf_run (perf, "many-curves-filled", do_many_curves_filled, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/many-fills.c b/local/recipes/libs/cairo/source/perf/micro/many-fills.c new file mode 100644 index 0000000000..9d3fd64357 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/many-fills.c @@ -0,0 +1,187 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + + +/* This is a variant on many strokes where we precompute + * a simplified stroke-to-path. + * When we have a real stroke-to-path, it would useful to compare the cost + * of stroking vs filling the "identical" paths. + */ + +#include "cairo-perf.h" + +static uint32_t state; + +static double +uniform_random (double minval, double maxval) +{ + static uint32_t const poly = 0x9a795537U; + uint32_t n = 32; + while (n-->0) + state = 2*state < state ? (2*state ^ poly) : 2*state; + return minval + state * (maxval - minval) / 4294967296.0; +} + +static cairo_time_t +do_many_fills_ha (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double y = floor (uniform_random (0, height)); + double x = floor (uniform_random (0, width)); + cairo_rectangle (cr, x, y, ceil (uniform_random (0, width)) - x, 1); + } + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_many_fills_h (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double y = uniform_random (0, height); + double x = uniform_random (0, width); + cairo_rectangle (cr, x, y, uniform_random (0, width) - x, 1); + } + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_many_fills_va (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double x = floor (uniform_random (0, width)); + double y = floor (uniform_random (0, height)); + cairo_rectangle (cr, x, y, 1, ceil (uniform_random (0, height) - y)); + } + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_many_fills_v (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double x = uniform_random (0, width); + double y = uniform_random (0, height); + cairo_rectangle (cr, x, y, 1, uniform_random (0, height) - y); + } + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_many_fills (cairo_t *cr, int width, int height, int loops) +{ + int count; + + /* lots and lots of overlapping stroke-like fills */ + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + cairo_save (cr); + cairo_translate (cr, + uniform_random (0, width), + uniform_random (0, height)); + cairo_rotate (cr, uniform_random (-M_PI,M_PI)); + cairo_rectangle (cr, 0, 0, uniform_random (0, width), 1); + cairo_restore (cr); + } + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +many_fills_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "many-fills", NULL); +} + +void +many_fills (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "many-fills-halign", do_many_fills_ha, NULL); + cairo_perf_run (perf, "many-fills-valign", do_many_fills_va, NULL); + cairo_perf_run (perf, "many-fills-horizontal", do_many_fills_h, NULL); + cairo_perf_run (perf, "many-fills-vertical", do_many_fills_v, NULL); + cairo_perf_run (perf, "many-fills-random", do_many_fills, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/many-strokes.c b/local/recipes/libs/cairo/source/perf/micro/many-strokes.c new file mode 100644 index 0000000000..9aeb393dee --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/many-strokes.c @@ -0,0 +1,186 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-perf.h" + +static uint32_t state; + +static double +uniform_random (double minval, double maxval) +{ + static uint32_t const poly = 0x9a795537U; + uint32_t n = 32; + while (n-->0) + state = 2*state < state ? (2*state ^ poly) : 2*state; + return minval + state * (maxval - minval) / 4294967296.0; +} + +static cairo_time_t +do_many_strokes_ha (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double h = floor (uniform_random (0, height)) + .5; + cairo_move_to (cr, floor (uniform_random (0, width)), h); + cairo_line_to (cr, ceil (uniform_random (0, width)), h); + } + + cairo_set_line_width (cr, 1.); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_many_strokes_h (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double h = uniform_random (0, height); + cairo_move_to (cr, uniform_random (0, width), h); + cairo_line_to (cr, uniform_random (0, width), h); + } + + cairo_set_line_width (cr, 1.); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_many_strokes_va (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double v = floor (uniform_random (0, width)) + .5; + cairo_move_to (cr, v, floor (uniform_random (0, height))); + cairo_line_to (cr, v, ceil (uniform_random (0, height))); + } + + cairo_set_line_width (cr, 1.); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_many_strokes_v (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double v = uniform_random (0, width); + cairo_move_to (cr, v, uniform_random (0, height)); + cairo_line_to (cr, v, uniform_random (0, height)); + } + + cairo_set_line_width (cr, 1.); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_many_strokes (cairo_t *cr, int width, int height, int loops) +{ + int count; + + /* lots and lots of overlapping strokes */ + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + cairo_line_to (cr, + uniform_random (0, width), + uniform_random (0, height)); + } + + cairo_set_line_width (cr, 1.); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +many_strokes_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "many-strokes", NULL); +} + +void +many_strokes (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "many-strokes-halign", do_many_strokes_ha, NULL); + cairo_perf_run (perf, "many-strokes-valign", do_many_strokes_va, NULL); + cairo_perf_run (perf, "many-strokes-horizontal", do_many_strokes_h, NULL); + cairo_perf_run (perf, "many-strokes-vertical", do_many_strokes_v, NULL); + cairo_perf_run (perf, "many-strokes-random", do_many_strokes, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/mask.c b/local/recipes/libs/cairo/source/perf/micro/mask.c new file mode 100644 index 0000000000..11a3ba730a --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/mask.c @@ -0,0 +1,305 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + * Chris Wilson + */ + +#include "cairo-perf.h" + +static cairo_time_t +do_mask_solid (cairo_t *cr, int width, int height, int loops) +{ + cairo_pattern_t *mask; + + mask = cairo_pattern_create_rgba (0, 0, 0, .5); + + cairo_perf_timer_start (); + + while (loops--) + cairo_mask (cr, mask); + + cairo_perf_timer_stop (); + + cairo_pattern_destroy (mask); + + return cairo_perf_timer_elapsed (); +} + +static cairo_surface_t * +init_surface (cairo_surface_t *surface, int width, int height) +{ + cairo_t *cr; + + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgb (cr, 0, 0, 0); /* back */ + cairo_paint (cr); + + cairo_set_source_rgba (cr, 1, 1, 1, 0.5); /* 50% */ + cairo_new_path (cr); + cairo_rectangle (cr, 0, 0, width/2.0, height/2.0); + cairo_rectangle (cr, width/2.0, height/2.0, width/2.0, height/2.0); + cairo_fill (cr); + + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return surface; +} + +static cairo_time_t +do_mask_image (cairo_t *cr, int width, int height, int loops) +{ + cairo_surface_t *surface; + cairo_pattern_t *mask; + + surface = cairo_image_surface_create (CAIRO_FORMAT_A8, width, height); + mask = cairo_pattern_create_for_surface (init_surface (surface, + width, + height)); + cairo_surface_destroy (surface); + + cairo_perf_timer_start (); + + while (loops--) + cairo_mask (cr, mask); + + cairo_perf_timer_stop (); + + cairo_pattern_destroy (mask); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_mask_image_half (cairo_t *cr, int width, int height, int loops) +{ + cairo_surface_t *surface; + cairo_pattern_t *mask; + cairo_matrix_t matrix; + + surface = cairo_image_surface_create (CAIRO_FORMAT_A8, width, height); + mask = cairo_pattern_create_for_surface (init_surface (surface, + width, + height)); + cairo_surface_destroy (surface); + cairo_matrix_init_scale (&matrix, .5, .5); + cairo_pattern_set_matrix (mask, &matrix); + + cairo_perf_timer_start (); + + while (loops--) + cairo_mask (cr, mask); + + cairo_perf_timer_stop (); + + cairo_pattern_destroy (mask); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_mask_image_double (cairo_t *cr, int width, int height, int loops) +{ + cairo_surface_t *surface; + cairo_pattern_t *mask; + cairo_matrix_t matrix; + + surface = cairo_image_surface_create (CAIRO_FORMAT_A8, width, height); + mask = cairo_pattern_create_for_surface (init_surface (surface, + width, + height)); + cairo_surface_destroy (surface); + cairo_matrix_init_scale (&matrix, 2., 2.); + cairo_pattern_set_matrix (mask, &matrix); + + cairo_perf_timer_start (); + + while (loops--) + cairo_mask (cr, mask); + + cairo_perf_timer_stop (); + + cairo_pattern_destroy (mask); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_mask_similar (cairo_t *cr, int width, int height, int loops) +{ + cairo_surface_t *surface; + cairo_pattern_t *mask; + + surface = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, width, height); + mask = cairo_pattern_create_for_surface (init_surface (surface, + width, + height)); + cairo_surface_destroy (surface); + + cairo_perf_timer_start (); + + while (loops--) + cairo_mask (cr, mask); + + cairo_perf_timer_stop (); + + cairo_pattern_destroy (mask); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_mask_similar_half (cairo_t *cr, int width, int height, int loops) +{ + cairo_surface_t *surface; + cairo_pattern_t *mask; + cairo_matrix_t matrix; + + surface = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, width, height); + mask = cairo_pattern_create_for_surface (init_surface (surface, + width, + height)); + cairo_surface_destroy (surface); + cairo_matrix_init_scale (&matrix, .5, .5); + cairo_pattern_set_matrix (mask, &matrix); + + cairo_perf_timer_start (); + + while (loops--) + cairo_mask (cr, mask); + + cairo_perf_timer_stop (); + + cairo_pattern_destroy (mask); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_mask_similar_double (cairo_t *cr, int width, int height, int loops) +{ + cairo_surface_t *surface; + cairo_pattern_t *mask; + cairo_matrix_t matrix; + + surface = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, width, height); + mask = cairo_pattern_create_for_surface (init_surface (surface, + width, + height)); + cairo_surface_destroy (surface); + cairo_matrix_init_scale (&matrix, 2., 2.); + cairo_pattern_set_matrix (mask, &matrix); + + cairo_perf_timer_start (); + + while (loops--) + cairo_mask (cr, mask); + + cairo_perf_timer_stop (); + + cairo_pattern_destroy (mask); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_mask_linear (cairo_t *cr, int width, int height, int loops) +{ + cairo_pattern_t *mask; + + mask = cairo_pattern_create_linear (0.0, 0.0, width, height); + cairo_pattern_add_color_stop_rgba (mask, 0.0, 0, 0, 0, 0.5); /* 50% */ + cairo_pattern_add_color_stop_rgba (mask, 0.0, 0, 0, 0, 1.0); /* 100% */ + + cairo_perf_timer_start (); + + while (loops--) + cairo_mask (cr, mask); + + cairo_perf_timer_stop (); + + cairo_pattern_destroy (mask); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_mask_radial (cairo_t *cr, int width, int height, int loops) +{ + cairo_pattern_t *mask; + + mask = cairo_pattern_create_radial (width/2.0, height/2.0, 0.0, + width/2.0, height/2.0, width/2.0); + cairo_pattern_add_color_stop_rgba (mask, 0.0, 0, 0, 0, 0.5); /* 50% */ + cairo_pattern_add_color_stop_rgba (mask, 0.0, 0, 0, 0, 1.0); /* 100% */ + + cairo_perf_timer_start (); + + while (loops--) + cairo_mask (cr, mask); + + cairo_perf_timer_stop (); + + cairo_pattern_destroy (mask); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +mask_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "mask", NULL); +} + +void +mask (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + if (! cairo_perf_can_run (perf, "mask", NULL)) + return; + + cairo_perf_cover_sources_and_operators (perf, "mask-solid", + do_mask_solid, NULL); + cairo_perf_cover_sources_and_operators (perf, "mask-image", + do_mask_image, NULL); + cairo_perf_cover_sources_and_operators (perf, "mask-image-half", + do_mask_image_half, NULL); + cairo_perf_cover_sources_and_operators (perf, "mask-image-double", + do_mask_image_double, NULL); + cairo_perf_cover_sources_and_operators (perf, "mask-similar", + do_mask_similar, NULL); + cairo_perf_cover_sources_and_operators (perf, "mask-similar-half", + do_mask_similar_half, NULL); + cairo_perf_cover_sources_and_operators (perf, "mask-similar-double", + do_mask_similar_double, NULL); + cairo_perf_cover_sources_and_operators (perf, "mask-linear", + do_mask_linear, NULL); + cairo_perf_cover_sources_and_operators (perf, "mask-radial", + do_mask_radial, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/meson.build b/local/recipes/libs/cairo/source/perf/micro/meson.build new file mode 100644 index 0000000000..8802f4c45d --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/meson.build @@ -0,0 +1,60 @@ +perf_micro_sources = [ + 'cairo-perf-cover.c', + 'box-outline.c', + 'composite-checker.c', + 'disjoint.c', + 'fill.c', + 'hatching.c', + 'hash-table.c', + 'line.c', + 'a1-line.c', + 'long-lines.c', + 'mosaic.c', + 'paint.c', + 'paint-with-alpha.c', + 'mask.c', + 'pattern_create_radial.c', + 'rectangles.c', + 'rounded-rectangles.c', + 'stroke.c', + 'subimage_copy.c', + 'tessellate.c', + 'text.c', + 'tiger.c', + 'glyphs.c', + 'twin.c', + 'unaligned-clip.c', + 'wave.c', + 'world-map.c', + 'zrusin.c', + 'long-dashed-lines.c', + 'dragon.c', + 'pythagoras-tree.c', + 'intersections.c', + 'many-strokes.c', + 'wide-strokes.c', + 'many-fills.c', + 'wide-fills.c', + 'many-curves.c', + 'curve.c', + 'a1-curve.c', + 'spiral.c', + 'pixel.c', + 'sierpinski.c', + 'fill-clip.c', +] + +perf_micro_headers = [ + 'mosaic.h', + 'world-map.h', + 'zrusin-another.h', +] + +libcairoperfmicro = static_library('cairo-perf-micro', + perf_micro_sources + perf_micro_headers, + include_directories: [incbase, incsrc, incmicro], + dependencies: [pixman_dep, cairoboilerplate_dep], +) +libcairoperfmicro_dep = declare_dependency( + link_with: libcairoperfmicro, +) diff --git a/local/recipes/libs/cairo/source/perf/micro/mosaic.c b/local/recipes/libs/cairo/source/perf/micro/mosaic.c new file mode 100644 index 0000000000..ed30ae5554 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/mosaic.c @@ -0,0 +1,176 @@ +/* + * Copyright © 2006 Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Joonas Pihlaja + */ +#include "cairo-perf.h" + +/* Options passed in flags to mosaic_perform(): */ +#define MOSAIC_FILL 1 /* do rasterise */ +#define MOSAIC_TESSELLATE 0 /* just tessellate */ +#define MOSAIC_CURVE_TO 2 /* use curve bounded regions */ +#define MOSAIC_LINE_TO 0 /* use line bounded regions */ + +struct mosaic_region { + unsigned rgb; /* colour of this region in 0xRRGGBB format */ + unsigned ncurves; /* number of boundary curves. */ +}; + +struct mosaic_region_iter { + int do_curves; + struct mosaic_region const *region; + double const *points; +}; + +#include "mosaic.h" + +static void +mosaic_region_iter_init (struct mosaic_region_iter *iter, int do_curves) +{ + iter->region = mosaic_regions; + iter->points = mosaic_curve_points; + iter->do_curves = do_curves; +} + +/* Create the next closed region as a path. */ +static int +mosaic_next_path (cairo_t *cr, struct mosaic_region_iter *iter) +{ + double const *points = iter->points; + unsigned i; + unsigned ncurves = iter->region->ncurves; + if (0 == ncurves) { + return 0; + } + + cairo_new_path (cr); + cairo_move_to (cr, points[0], points[1]); + points += 2; + for (i=0; i < ncurves; i++, points += 6) { + if (iter->do_curves) { + cairo_curve_to (cr, + points[0], points[1], + points[2], points[3], + points[4], points[5]); + } + else { + cairo_line_to (cr, + points[4], points[5]); + } + } + cairo_close_path (cr); + { + unsigned rgb = iter->region->rgb; + double r = ((rgb >> 16) & 255) / 255.0; + double g = ((rgb >> 8) & 255) / 255.0; + double b = ((rgb >> 0) & 255) / 255.0; + cairo_set_source_rgb (cr, r, g, b); + } + + iter->points = iter->points + 2*(1 + 3*iter->region->ncurves); + iter->region++; + return 1; +} + +static cairo_time_t +mosaic_perform(cairo_t *cr, unsigned flags, int width, int height, int loops) +{ + struct mosaic_region_iter iter; + + /* Scale to fit the window.*/ + double minx = -40.7; + double maxx = 955.1; + double miny = -88.4; + double maxy = 884.5; + + cairo_identity_matrix (cr); + + if (flags & MOSAIC_FILL) { + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_rectangle (cr, 0, 0, width, height); + cairo_fill (cr); + } + + cairo_scale (cr, width / (maxx - minx) , height / (maxy - miny)); + cairo_translate (cr, -minx, -miny); + + /* Iterate over all closed regions in the mosaic filling or + * tessellating them as dictated by the flags. */ + + cairo_perf_timer_start (); + while (loops--) { + mosaic_region_iter_init (&iter, flags & MOSAIC_CURVE_TO); + while (mosaic_next_path (cr, &iter)) { + if (flags & MOSAIC_FILL) { + cairo_fill (cr); + } + else { + double x, y; + cairo_get_current_point (cr, &x, &y); + cairo_in_fill (cr, x, y); + } + } + } + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +mosaic_fill_curves (cairo_t *cr, int width, int height, int loops) +{ + return mosaic_perform (cr, MOSAIC_FILL | MOSAIC_CURVE_TO, width, height, loops); +} + +static cairo_time_t +mosaic_fill_lines (cairo_t *cr, int width, int height, int loops) +{ + return mosaic_perform (cr, MOSAIC_FILL | MOSAIC_LINE_TO, width, height, loops); +} + +static cairo_time_t +mosaic_tessellate_lines (cairo_t *cr, int width, int height, int loops) +{ + return mosaic_perform (cr, MOSAIC_TESSELLATE | MOSAIC_LINE_TO, width, height, loops); +} + +static cairo_time_t +mosaic_tessellate_curves (cairo_t *cr, int width, int height, int loops) +{ + return mosaic_perform (cr, MOSAIC_TESSELLATE | MOSAIC_CURVE_TO, width, height, loops); +} + +cairo_bool_t +mosaic_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "mosaic", NULL); +} + +void +mosaic (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "mosaic-fill-curves", mosaic_fill_curves, NULL); + cairo_perf_run (perf, "mosaic-fill-lines", mosaic_fill_lines, NULL); + cairo_perf_run (perf, "mosaic-tessellate-curves", mosaic_tessellate_curves, NULL); + cairo_perf_run (perf, "mosaic-tessellate-lines", mosaic_tessellate_lines, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/mosaic.h b/local/recipes/libs/cairo/source/perf/micro/mosaic.h new file mode 100644 index 0000000000..e106864a31 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/mosaic.h @@ -0,0 +1,4387 @@ +/* Synthesised data. */ +static struct mosaic_region const mosaic_regions[] = { +{0xef55b4,7},{0xf93bc6,11},{0xf28085,5},{0x92acbc,7}, +{0x85c3b1,7},{0xc3bc79,5},{0xd09d8d,5},{0xa788cb,8}, +{0xeff90f,14},{0x976ef2,4},{0xf230d8,5},{0xe226ef,6}, +{0xf49571,9},{0xcb6cc1,4},{0xc8af80,5},{0xf71ce7,8}, +{0xd38b9a,6},{0xf70ff2,8},{0xec907e,4},{0xf44abc,5}, +{0xf42bd8,7},{0xcbbc71,5},{0xf7a45f,5},{0xb15aec,3}, +{0xfc6995,9},{0x42bef9,7},{0x83afc6,5},{0xbe9f9a,6}, +{0x95ef76,6},{0xfcc33b,20},{0xbc5ae2,5},{0x69f997,7}, +{0x9f69f2,7},{0x79bec3,7},{0xda3de2,6},{0x76dda7,6}, +{0xc888aa,7},{0xd871b1,9},{0xda29f7,14},{0xe03dda,9}, +{0xec29e2,5},{0xd82bf4,6},{0x8b8de2,6},{0xf7af52,3}, +{0x9f69f2,7},{0xf46c9a,9},{0xf74fb1,5},{0x21eaef,9}, +{0xea769a,8},{0x0feffc,5},{0xdada45,8},{0xafce7b,6}, +{0x48bef4,6},{0x9a79e5,3},{0xe2fc1c,7},{0xc3be76,9}, +{0xb9c37e,5},{0xc6b183,10},{0xa2acac,3},{0xc395a2,4}, +{0xbc88b4,7},{0xeaf41c,5},{0xea24ea,4},{0xd038f2,5}, +{0x5ae2bc,9},{0xdac15f,8},{0x5fe5b4,6},{0xce5ad3,15}, +{0xf419ec,4},{0xa7bc97,11},{0xea4ac3,6},{0xd02ef9,5}, +{0xb995aa,5},{0xef808b,6},{0xe22bea,34},{0xe24fc6,4}, +{0xef12f9,7},{0x7b9de0,8},{0x85ec85,4},{0xfc7e80,12}, +{0x9a85d8,5},{0xfc00fc,7},{0x9d90ce,5},{0xf4be45,9}, +{0xe5e52e,3},{0xfc0cef,7},{0xd83be5,8},{0x4dc6e5,5}, +{0xacda73,9},{0x4fc8e0,6},{0xbc88b6,4},{0xb4bc8b,6}, +{0xec45c6,8},{0x71d3b6,4},{0xe73dd5,5},{0x21fcda,4}, +{0xe055c6,9},{0x3becd0,8},{0x57e0c1,5},{0x71bec8,9}, +{0x8be28b,4},{0x4dddd0,9},{0xda9a85,6},{0xaa6ce2,4}, +{0x5ad5cb,9},{0x67f49d,12},{0xfc07f7,9},{0x42c8ec,16}, +{0xefc148,4},{0xda6eb1,7},{0x55bee7,4},{0xd33bea,6}, +{0x809fd8,14},{0xd82ef2,4},{0x21ddfc,5},{0x83e097,7}, +{0x8bcba2,9},{0xd864bc,8},{0xa7d87b,6},{0xc3a78d,6}, +{0xb9a79a,8},{0xd59590,3},{0xfc0af2,6},{0xe52be7,7}, +{0xce52d8,5},{0xe22bea,4},{0xe719f7,5},{0x909fcb,3}, +{0xa7da76,6},{0xdd38e5,4},{0xfc55aa,6},{0x19f2ef,6}, +{0x83da9d,5},{0x9fc892,6},{0xe51ef4,9},{0xce3dec,5}, +{0xea3dd0,7},{0x4ad3dd,6},{0x6ea2e7,5},{0xf92bd3,4}, +{0xc34aea,8},{0x2eddef,4},{0xe7799a,8},{0xe5799a,11}, +{0xe224f2,3},{0xf90af7,6},{0x61a2f4,6},{0xb67ec6,13}, +{0xe75cb4,7},{0xfcb945,16},{0xd3b173,7},{0xfc00fc,6}, +{0xd5ef33,5},{0x699df4,9},{0xf707f9,4},{0xdaea33,6}, +{0xe2dd38,3},{0xf2d036,5},{0xf248c1,6},{0xeaf21c,5}, +{0xec40cb,7},{0xf24abc,5},{0xf42bd8,4},{0xa757f9,5}, +{0xd02ef9,6},{0xfc0cf2,7},{0xb16cda,5},{0xea36d8,8}, 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+{0xf90fef,6},{0xf738c8,3},{0xcb5ad5,7},{0xec21ec,5}, +{0xce61c8,3},{0xa76ce7,3},{0xf41ee5,7},{0xcebe6c,3}, +{0x57dac6,9},{0xf46e97,3},{0x8be08d,7},{0xc148ef,9}, +{0xf926da,8},{0xe029ef,6},{0xfc00fc,5},{0x3dcbf2,4}, +{0xef0ffc,5},{0x95b6ac,9},{0x7be59a,5},{0xda2ef2,8}, +{0xda30ef,5},{0xfc24d8,3},{0x73d3b4,3},{0xddf229,4}, +{0x8883ef,5},{0x5aefaf,6},{0x9797cb,6},{0xcbc16c,5}, +{0xef19f2,5},{0xd3bc6c,3},{0xda5cc3,8},{0x52f9ac,7}, +{0xa7c888,4},{0x69d8b6,7},{0xbc45f7,7},{0xfc02fc,4}, +{0xb4b195,6},{0xe58d85,4},{0x9776ea,6},{0xf255b1,6}, +{0x76dda7,3},{0xe55ab9,8},{0xe230e7,5},{0x3bd0ec,5}, +{0xe219fc,6},{0xcbac83,5},{0xe548ce,7},{0xdd5cbe,3}, +{0xf412f4,5},{0xf9738d,9},{0xdd40da,4},{0x90c6a2,10}, +{0xe038e2,4},{0x6eddaf,8},{0xf23dcb,12},{0xec4fbc,6}, +{0xc8d35c,6},{0xf238d0,6},{0x90cb9f,6},{0xa46ee5,5}, +{0xaf8bbe,5},{0xc1a495,5},{0xc679b9,4},{0xec29e2,6}, +{0xf9649d,6},{0xf924da,6},{0xe224f2,5},{0x8d71f9,7}, +{0xf2cb3d,5},{0xb6cb79,4},{0xa4dd76,6},{0xe52ee5,3}, +{0xaa8bc3,3},{0x838dea,7},{0xf9ea17,5},{0x88c8aa,6}, +{0x73e0a7,5},{0xd09595,6},{0xf7d82b,10},{0xec7397,4}, +{0xfc02fc,7},{0xf72ed3,5},{0xd03dec,4},{0x80cbaf,5}, +{0xf921dd,7},{0x9fcb90,8},{0xbe95a7,4},{0x69eaa4,8}, +{0xf20ff7,5},{0x69e7a7,9},{0xf924da,3},{0xecdd30,6}, +{0xc1d861,4},{0xb967d8,5},{0xb157ef,6},{0xb9bc85,5}, +{0xb192b4,8},{0xda38e5,3},{0xea1eef,6},{0x12f7ef,4}, +{0x6e90f9,6},{0xd573b1,6},{0xdd24f7,5},{0xd5d055,7}, +{0xc86ec1,4},{0xf21ee7,7},{0xa261f4,6},{0xe555c1,4}, +{0xf78b79,6},{0xf78080,5},{0x80b4c3,7},{0xf414ef,4}, +{0xf70ff2,6},{0xea52bc,6},{0xd04ddd,7},{0xf90af4,5}, +{0xe78b88,4},{0xf29f67,6},{0x79b6c8,4},{0xa48dc8,5}, +{0x5fa4f4,4},{0xea14fc,3},{0xf23bcb,7},{0xf738cb,5}, +{0x4fb1f9,3},{0x5ae2bc,7},{0xfcac4f,5},{0xa283d3,7}, +{0xef24e7,7},{0xe5e52e,4},{0x929ace,4},{0xcb36f9,8}, +{0xea21ef,5},{0xf2d038,6},{0x48d8d8,4},{0xec40ce,6}, +{0xf90af7,5},{0xf921dd,7},{0xd8e042,5},{0x21ddf9,4}, +{0x5fb9e2,8},{0xf72ed3,4},{0xfc2ed0,5},{0xf712ef,6}, +{0x57d8cb,5},{0x19fce2,9},{0xe7f71c,9},{0x7be59a,4}, +{0x6cfc90,5},{0xec3bd0,5},{0xea26e7,8},{0x36d5ec,5}, +{0xac76d8,3},{0xa4a4b1,3},{0xef12f7,4},{0x6eb9d3,6}, +{0xe714fc,5},{0xe224f2,5},{0x3bead5,4},{0x8de783,9}, +{0x40d5e2,8},{0x9764fc,7},{0xf705fc,3},{0x8d88e2,8}, +{0xe269ac,6},{0xda33ec,7},{0xd03bec,3},{0xbe6cd0,6}, +{0x8bf479,5},{0xf912ec,8},{0xe5b461,7},{0xaf5aef,6}, +{0xc34fe5,7},{0xd038ef,6},{0x38f9c8,7},{0xf43dc6,3}, +{0xceb973,5},{0xe526ec,4},{0xf902fc,7},{0xbc48f7,4}, +{0,0} +}; + +static double const mosaic_curve_points[] = { +20.3, 216.5, 27.0, 209.8, 17.4, 200.0, 14.5, 183.5, 14.2, 181.8, +13.5, 181.6, 13.9, 180.0, 28.3, 126.1, 29.2, 126.3, 44.2, 72.5, +44.4, 71.7, 44.2, 70.8, 44.2, 70.8, 44.2, 70.8, 44.4, 71.7, +44.2, 72.5, 36.1, 121.4, 36.0, 121.3, 27.9, 170.2, 24.1, 193.3, +33.8, 203.1, 20.3, 216.5, 82.6, 583.9, 82.5, 583.6, 84.3, 583.3, +84.2, 583.1, 88.1, 600.0, 87.2, 600.2, 90.2, 617.3, 92.4, 630.1, +92.4, 630.1, 94.7, 642.9, 96.8, 655.3, 96.8, 655.3, 99.0, 667.8, +100.0, 673.7, 100.1, 673.7, 101.1, 679.7, 107.4, 716.3, 107.3, 716.3, +113.7, 752.9, 115.3, 762.1, 117.1, 771.4, 117.1, 771.4, 117.1, 771.4, +115.3, 762.1, 113.7, 752.9, 108.9, 726.8, 108.9, 726.8, 104.1, 700.7, +97.1, 662.7, 97.1, 662.7, 90.1, 624.8, 86.3, 604.3, 85.5, 604.5, +82.6, 583.9, 37.6, 265.6, 38.8, 286.4, 41.0, 287.6, 36.1, 307.5, +38.5, 298.0, 34.3, 297.0, 32.5, 286.5, 26.4, 251.5, 21.6, 251.7, +20.3, 216.5, 33.8, 203.1, 24.1, 193.3, 27.9, 170.2, 43.4, 214.1, +34.7, 217.8, 37.6, 265.6, 27.9, 170.2, 36.0, 121.3, 36.1, 121.4, +44.2, 72.5, 43.5, 76.1, 44.0, 76.2, 43.9, 79.8, 43.7, 85.4, +43.7, 85.4, 43.5, 91.0, 41.9, 137.6, 41.9, 137.6, 40.3, 184.2, +39.2, 217.8, 39.2, 217.8, 38.1, 251.5, 37.8, 258.5, 36.7, 258.7, +37.6, 265.6, 34.7, 217.8, 43.4, 214.1, 27.9, 170.2, -16.2, 299.0, +-16.2, 299.0, -15.8, 297.4, -15.4, 295.8, -10.3, 274.5, -10.2, 274.5, +-5.1, 253.1, -1.7, 238.6, -1.9, 238.6, 1.6, 224.2, 2.5, 220.5, +2.8, 220.6, 3.6, 216.9, -0.6, 235.0, -0.7, 235.0, -5.1, 253.1, +-10.2, 274.5, -10.3, 274.5, -15.4, 295.8, -15.8, 297.4, -16.2, 299.0, +-16.2, 299.0, 242.4, -11.8, 258.9, -17.0, 261.0, -11.0, 277.2, -16.9, +183.6, 17.7, 182.4, 14.3, 87.6, 45.5, 87.3, 45.5, 87.3, 45.5, +87.1, 45.6, 71.7, 49.5, 71.2, 48.0, 56.4, 53.5, 148.8, 19.4, +148.5, 18.2, 242.4, -11.8, 56.4, 53.5, 52.5, 54.8, 51.1, 57.0, +48.5, 55.6, 47.9, 55.2, 48.4, 50.6, 50.0, 50.0, 134.7, 18.5, +135.0, 19.0, 221.1, -8.6, 231.2, -11.9, 232.5, -8.1, 242.4, -11.8, +148.5, 18.2, 148.8, 19.4, 56.4, 53.5, 194.7, 17.8, 158.4, 27.2, +158.4, 27.2, 122.0, 36.6, 117.5, 37.7, 117.5, 37.7, 112.9, 38.9, +100.2, 42.2, 100.2, 42.2, 87.6, 45.5, 87.3, 45.5, 87.3, 45.5, +87.1, 45.6, 182.1, 14.3, 181.1, 10.8, 277.2, -16.9, 303.4, -24.5, +307.1, -14.6, 331.7, -25.0, 266.4, 2.6, 263.7, -3.7, 195.7, 17.5, +195.2, 17.7, 195.2, 17.7, 194.7, 17.8, 331.7, -25.0, 364.2, -33.4, +365.0, -31.6, 398.6, -34.9, 387.8, -33.8, 388.0, -32.1, 377.4, -29.4, +370.0, -27.5, 370.0, -27.5, 362.6, -25.6, 362.3, -25.5, 362.3, -25.5, +362.0, -25.4, 355.9, -23.9, 355.9, -23.9, 349.8, -22.3, 341.8, -20.2, +341.8, -20.2, 333.7, -18.1, 318.3, -14.2, 318.3, -14.2, 303.0, -10.2, +300.6, -9.6, 300.6, -9.6, 298.2, -9.0, 281.5, -4.7, 281.5, -4.7, +264.9, -0.3, 254.1, 2.4, 254.1, 2.4, 243.2, 5.2, 227.9, 9.2, +227.9, 9.2, 212.6, 13.1, 204.2, 15.3, 204.2, 15.3, 195.7, 17.5, +195.2, 17.7, 195.2, 17.7, 194.7, 17.8, 263.2, -3.6, 262.3, -7.1, +331.7, -25.0, -5.1, 253.1, -0.7, 235.0, -0.6, 235.0, 3.6, 216.9, +7.2, 203.0, 5.7, 202.2, 11.4, 189.1, 6.4, 200.6, 8.2, 201.4, +5.0, 213.7, -0.0, 233.4, 2.9, 234.7, -5.1, 253.1, 0.7, 536.2, +13.6, 573.8, 15.5, 574.7, 18.7, 614.1, 18.8, 616.3, 7.9, 620.2, +7.3, 619.4, -4.6, 602.1, -1.2, 599.1, -6.2, 577.9, -16.0, 536.4, +-28.8, 533.6, -22.2, 494.1, -25.4, 512.7, -6.9, 513.8, 0.7, 536.2, +-22.2, 494.1, -26.0, 485.6, -28.6, 477.0, -25.8, 475.4, -22.7, 473.6, +-14.7, 479.5, -10.5, 487.2, -3.6, 500.3, -7.1, 502.1, -3.7, 517.0, +-2.5, 522.1, -2.5, 522.1, -1.4, 527.1, -0.3, 531.7, -1.6, 532.5, +0.7, 536.2, -6.9, 513.8, -25.4, 512.7, -22.2, 494.1, 19.0, 510.1, +21.7, 515.4, 24.2, 514.1, 29.4, 518.2, 30.9, 519.3, 30.9, 519.3, +32.3, 520.4, 56.0, 538.7, 58.2, 536.4, 79.7, 557.1, 82.9, 560.1, +80.6, 562.5, 81.6, 567.8, 82.9, 575.5, 83.7, 575.4, 84.2, 583.1, +84.3, 583.3, 82.5, 583.6, 82.6, 583.9, 75.0, 587.4, 75.2, 587.9, +67.4, 591.0, 67.4, 591.1, 67.2, 590.6, 66.9, 590.2, 42.9, 550.1, +40.5, 551.4, 19.0, 510.1, 121.8, 800.9, 121.7, 801.1, 122.3, 801.2, +122.4, 801.6, 123.7, 808.3, 126.5, 809.3, 124.7, 815.1, 125.1, 813.8, +120.1, 813.3, 119.5, 810.6, 118.6, 806.2, 120.3, 805.6, 121.8, 800.9, +0.7, 495.9, 3.7, 500.5, 5.2, 499.5, 9.8, 503.0, 14.4, 506.5, +15.9, 505.5, 19.0, 510.1, 40.5, 551.4, 42.9, 550.1, 66.9, 590.2, +63.6, 584.5, 63.1, 584.8, 59.4, 579.4, 30.0, 537.7, 28.5, 538.7, +0.7, 495.9, 113.7, 752.9, 115.3, 762.1, 117.1, 771.4, 117.1, 771.4, +117.4, 773.4, 117.4, 773.4, 117.8, 775.3, 120.1, 788.5, 120.3, 788.4, +122.4, 801.6, 122.3, 801.2, 121.7, 801.1, 121.8, 800.9, 121.4, 800.4, +121.4, 800.4, 121.0, 799.9, 120.6, 799.4, 120.6, 799.4, 120.3, 798.9, +95.0, 767.1, 74.8, 770.0, 69.8, 735.3, 71.5, 747.0, 95.6, 739.1, +113.7, 752.9, 69.8, 735.3, 69.0, 734.9, 68.4, 733.7, 68.5, 733.6, +75.3, 725.8, 76.1, 726.5, 83.8, 719.4, 89.1, 714.5, 89.1, 714.5, +94.4, 709.6, 99.2, 705.1, 104.9, 702.6, 104.1, 700.7, 108.9, 726.8, +108.9, 726.8, 113.7, 752.9, 95.6, 739.1, 71.5, 747.0, 69.8, 735.3, +19.0, 613.9, 22.4, 604.2, 32.4, 607.6, 45.7, 601.3, 56.0, 596.4, +56.0, 596.4, 66.3, 591.6, 66.9, 591.3, 66.9, 591.3, 67.4, 591.0, +75.2, 587.9, 75.0, 587.4, 82.6, 583.9, 85.5, 604.5, 86.3, 604.3, +90.1, 624.8, 90.1, 624.5, 88.9, 624.6, 87.8, 624.5, 64.0, 620.8, +64.0, 620.8, 40.2, 617.2, 29.6, 615.5, 19.7, 612.1, 19.0, 613.9, +121.0, 799.9, 121.4, 800.4, 121.4, 800.4, 121.8, 800.9, 120.3, 805.6, +118.6, 806.2, 119.5, 810.6, 108.1, 806.7, 98.9, 800.6, 99.9, 793.4, +99.6, 795.2, 110.5, 796.3, 121.0, 799.9, 191.6, 801.6, 213.6, 817.8, +197.0, 840.4, 202.3, 879.2, 202.4, 880.2, 203.0, 880.7, 202.6, 881.2, +202.1, 881.7, 201.1, 881.7, 200.4, 881.1, 187.5, 870.7, 176.8, 871.5, +175.5, 859.3, 172.4, 831.7, 200.2, 807.9, 191.6, 801.6, 32.3, 520.4, +30.9, 519.3, 30.9, 519.3, 29.4, 518.2, 27.6, 505.3, 28.9, 505.1, +28.3, 492.1, 26.0, 440.3, 25.5, 440.3, 23.7, 388.5, 24.2, 405.2, +24.7, 405.2, 25.8, 421.8, 27.0, 439.3, 27.0, 439.3, 28.1, 456.8, +29.1, 470.9, 29.1, 470.9, 30.0, 485.1, 31.1, 502.7, 32.6, 502.7, +32.3, 520.4, -3.7, 517.0, -7.1, 502.1, -3.6, 500.3, -10.5, 487.2, +-10.8, 490.3, -6.1, 490.7, -1.6, 494.1, -0.5, 495.0, -0.1, 494.8, +0.7, 495.9, 28.5, 538.7, 30.0, 537.7, 59.4, 579.4, 64.3, 555.8, +22.9, 552.0, -3.7, 517.0, 83.8, 719.4, 76.1, 726.5, 75.3, 725.8, +68.5, 733.6, 49.9, 724.3, 45.1, 717.9, 40.0, 697.6, 42.0, 705.5, +51.1, 703.2, 62.2, 708.7, 69.0, 712.1, 69.0, 712.1, 75.8, 715.5, +79.8, 717.4, 83.9, 719.1, 83.8, 719.4, 69.7, 767.2, 66.2, 756.5, +57.4, 760.4, 50.0, 750.0, 44.4, 742.1, 50.3, 736.4, 43.7, 730.7, +60.1, 745.0, 63.1, 746.8, 69.7, 767.2, 943.6, 608.8, 941.3, 609.3, +947.5, 623.9, 942.6, 627.8, 892.0, 668.3, 889.0, 665.2, 832.4, 697.7, +848.6, 688.4, 847.2, 685.9, 861.9, 674.1, 867.3, 669.8, 867.3, 669.8, +872.6, 665.6, 875.3, 663.4, 875.3, 663.4, 878.0, 661.2, 891.5, 650.5, +891.5, 650.5, 904.9, 639.8, 906.2, 638.7, 906.2, 638.7, 907.5, 637.7, +909.8, 635.8, 909.8, 635.8, 912.2, 633.9, 927.9, 621.4, 926.1, 612.3, +943.6, 608.8, 743.8, 661.6, 749.6, 670.9, 741.5, 681.2, 747.9, 684.8, +733.2, 676.6, 737.6, 668.6, 727.2, 652.4, 722.1, 644.3, 722.1, 644.3, +716.9, 636.3, 711.2, 627.4, 711.2, 627.4, 705.5, 618.5, 701.1, 611.6, +695.6, 610.5, 696.7, 604.7, 695.8, 609.3, 701.3, 610.3, 706.0, 615.9, +724.9, 638.7, 728.6, 636.5, 743.8, 661.6, 947.6, 328.1, 940.6, 361.9, +953.7, 364.0, 954.4, 400.0, 955.1, 438.8, 952.6, 438.9, 950.4, 477.7, +950.5, 475.0, 950.3, 475.0, 950.3, 472.2, 949.8, 448.4, 949.8, 448.4, +949.4, 424.6, 948.5, 376.3, 938.1, 374.2, 947.6, 328.1, 846.3, 117.0, +890.0, 147.0, 890.5, 146.4, 933.3, 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advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-perf.h" + +static cairo_time_t +do_paint_with_alpha (cairo_t *cr, int width, int height, int loops) +{ + cairo_perf_timer_start (); + + while (loops--) + cairo_paint_with_alpha (cr, 0.5); + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static double +count_paint_with_alpha (cairo_t *cr, int width, int height) +{ + return width * height / 1e6; /* Mpix/s */ +} + +cairo_bool_t +paint_with_alpha_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "paint-with-alpha", NULL); +} + +void +paint_with_alpha (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_cover_sources_and_operators (perf, "paint-with-alpha", + do_paint_with_alpha, + count_paint_with_alpha); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/paint.c b/local/recipes/libs/cairo/source/perf/micro/paint.c new file mode 100644 index 0000000000..2a59a45e09 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/paint.c @@ -0,0 +1,57 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-perf.h" + +static cairo_time_t +do_paint (cairo_t *cr, int width, int height, int loops) +{ + cairo_perf_timer_start (); + + while (loops--) + cairo_paint (cr); + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static double +count_paint (cairo_t *cr, int width, int height) +{ + return width * height / 1e6; /* Mpix/s */ +} + +cairo_bool_t +paint_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "paint", NULL); +} + +void +paint (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_cover_sources_and_operators (perf, "paint", do_paint, count_paint); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/pattern_create_radial.c b/local/recipes/libs/cairo/source/perf/micro/pattern_create_radial.c new file mode 100644 index 0000000000..3915efb9a2 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/pattern_create_radial.c @@ -0,0 +1,106 @@ +/* + * Copyright © 2006 Dan Amelang + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the authors not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The authors make no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Dan Amelang + * + * This test was originally created to test _cairo_fixed_from_double. + * cairo_pattern_create_radial was selected as the entry point into + * cairo as it makes several calls to _cairo_fixed_from_double and + * presents a somewhat realistic use-case (although the RADIALS_COUNT + * isn't very realistic). + */ +#include "cairo-perf.h" +#include + +#define RADIALS_COUNT (10000) + +static struct +{ + double cx0; + double cy0; + double radius0; + double cx1; + double cy1; + double radius1; +} radials[RADIALS_COUNT]; + +static double +generate_double_in_range (double min, double max) +{ + double d; + + d = rand () / (double) RAND_MAX; + d *= max - min; + d += min; + + return d; +} + +static cairo_time_t +do_pattern_create_radial (cairo_t *cr, int width, int height, int loops) +{ + cairo_perf_timer_start (); + + while (loops--) { + cairo_pattern_t *pattern; + int i; + + for (i = 0; i < RADIALS_COUNT; i++) { + pattern = + cairo_pattern_create_radial (radials[i].cx0, radials[i].cy0, + radials[i].radius0, + radials[i].cx1, radials[i].cy1, + radials[i].radius1); + cairo_pattern_destroy (pattern); + } + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +pattern_create_radial_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "pattern-create-radial", NULL); +} + +void +pattern_create_radial (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + int i; + + srand (time (0)); + for (i = 0; i < RADIALS_COUNT; i++) + { + radials[i].cx0 = generate_double_in_range (-50000.0, 50000.0); + radials[i].cy0 = generate_double_in_range (-50000.0, 50000.0); + radials[i].radius0 = generate_double_in_range (0.0, 1000.0); + radials[i].cx1 = generate_double_in_range (-50000.0, 50000.0); + radials[i].cy1 = generate_double_in_range (-50000.0, 50000.0); + radials[i].radius1 = generate_double_in_range (0.0, 1000.0); + } + + cairo_perf_run (perf, "pattern-create-radial", + do_pattern_create_radial, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/pixel.c b/local/recipes/libs/cairo/source/perf/micro/pixel.c new file mode 100644 index 0000000000..85a42e4427 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/pixel.c @@ -0,0 +1,239 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +/* Measure the overhead in setting a single pixel */ + +#include "cairo-perf.h" + +#include + +static cairo_time_t +pixel_direct (cairo_t *cr, int width, int height, int loops) +{ + cairo_surface_t *surface, *image; + uint32_t *data; + int stride, bpp; + + surface = cairo_get_target (cr); + image = cairo_surface_map_to_image (surface, NULL); + data = (uint32_t *) cairo_image_surface_get_data (image); + stride = cairo_image_surface_get_stride (image) / sizeof (uint32_t); + + switch (cairo_image_surface_get_format (image)) { + default: + case CAIRO_FORMAT_INVALID: + case CAIRO_FORMAT_A1: bpp = 0; break; + case CAIRO_FORMAT_A8: bpp = 8; break; + case CAIRO_FORMAT_RGB16_565: bpp = 16; break; + case CAIRO_FORMAT_RGB24: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_ARGB32: bpp = 32; break; + case CAIRO_FORMAT_RGB96F: bpp = 96; break; + case CAIRO_FORMAT_RGBA128F: bpp = 128; break; + } + + cairo_perf_timer_start (); + + while (loops--) + pixman_fill (data, stride, bpp, 0, 0, 1, 1, -1); + + cairo_perf_timer_stop (); + + cairo_surface_unmap_image (surface, image); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +pixel_paint (cairo_t *cr, int width, int height, int loops) +{ + cairo_perf_timer_start (); + + while (loops--) + cairo_paint (cr); + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +pixel_mask (cairo_t *cr, int width, int height, int loops) +{ + cairo_surface_t *mask; + cairo_t *cr2; + + mask = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_ALPHA, + 1, 1); + cr2 = cairo_create (mask); + cairo_set_source_rgb (cr2, 1,1,1); + cairo_paint (cr2); + cairo_destroy (cr2); + + cairo_perf_timer_start (); + + while (loops--) + cairo_mask_surface (cr, mask, 0, 0); + + cairo_perf_timer_stop (); + + cairo_surface_destroy (mask); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +pixel_rectangle (cairo_t *cr, int width, int height, int loops) +{ + cairo_new_path (cr); + cairo_rectangle (cr, 0, 0, 1, 1); + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +pixel_subrectangle (cairo_t *cr, int width, int height, int loops) +{ + cairo_new_path (cr); + cairo_rectangle (cr, 0.1, 0.1, .8, .8); + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +pixel_triangle (cairo_t *cr, int width, int height, int loops) +{ + cairo_new_path (cr); + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, 1, 1); + cairo_line_to (cr, 0, 1); + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +pixel_circle (cairo_t *cr, int width, int height, int loops) +{ + cairo_new_path (cr); + cairo_arc (cr, 0.5, 0.5, 0.5, 0, 2 * M_PI); + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +pixel_stroke (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_line_width (cr, 1.); + cairo_new_path (cr); + cairo_move_to (cr, 0, 0.5); + cairo_line_to (cr, 1, 0.5); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +pixel_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "pixel", NULL); +} + +void +pixel (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1., 1., 1.); + + cairo_perf_run (perf, "pixel-direct", pixel_direct, NULL); + cairo_perf_run (perf, "pixel-paint", pixel_paint, NULL); + cairo_perf_run (perf, "pixel-mask", pixel_mask, NULL); + cairo_perf_run (perf, "pixel-rectangle", pixel_rectangle, NULL); + cairo_perf_run (perf, "pixel-subrectangle", pixel_subrectangle, NULL); + cairo_perf_run (perf, "pixel-triangle", pixel_triangle, NULL); + cairo_perf_run (perf, "pixel-circle", pixel_circle, NULL); + cairo_perf_run (perf, "pixel-stroke", pixel_stroke, NULL); +} + +cairo_bool_t +a1_pixel_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "a1-pixel", NULL); +} + +void +a1_pixel (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1., 1., 1.); + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + cairo_perf_run (perf, "a1-pixel-direct", pixel_direct, NULL); + cairo_perf_run (perf, "a1-pixel-paint", pixel_paint, NULL); + cairo_perf_run (perf, "a1-pixel-mask", pixel_mask, NULL); + cairo_perf_run (perf, "a1-pixel-rectangle", pixel_rectangle, NULL); + cairo_perf_run (perf, "a1-pixel-subrectangle", pixel_subrectangle, NULL); + cairo_perf_run (perf, "a1-pixel-triangle", pixel_triangle, NULL); + cairo_perf_run (perf, "a1-pixel-circle", pixel_circle, NULL); + cairo_perf_run (perf, "a1-pixel-stroke", pixel_stroke, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/pythagoras-tree.c b/local/recipes/libs/cairo/source/perf/micro/pythagoras-tree.c new file mode 100644 index 0000000000..9d3ca1155a --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/pythagoras-tree.c @@ -0,0 +1,95 @@ +/* + * Copyright © 2007 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-perf.h" +#define _USE_MATH_DEFINES /* for M_SQRT2 on win32 */ +#include + +static void +add_rectangle (cairo_t *cr, double size) +{ + double x, y; + + if (size < 1) + return; + + cairo_get_current_point (cr, &x, &y); + + cairo_rel_move_to (cr, -size/2., -size/2.); + cairo_rel_line_to (cr, size, 0); + cairo_rel_line_to (cr, 0, size); + cairo_rel_line_to (cr, -size, 0); + cairo_close_path (cr); + + cairo_save (cr); + cairo_translate (cr, -size/2., size); + cairo_move_to (cr, x, y); + cairo_rotate (cr, M_PI/4); + add_rectangle (cr, size / M_SQRT2); + cairo_restore (cr); + + cairo_save (cr); + cairo_translate (cr, size/2., size); + cairo_move_to (cr, x, y); + cairo_rotate (cr, -M_PI/4); + add_rectangle (cr, size / M_SQRT2); + cairo_restore (cr); +} + +static cairo_time_t +do_pythagoras_tree (cairo_t *cr, int width, int height, int loops) +{ + double size = 128; + + cairo_perf_timer_start (); + + while (loops--) { + cairo_save (cr); + cairo_translate (cr, 0, height); + cairo_scale (cr, 1, -1); + + cairo_move_to (cr, width/2, size/2); + add_rectangle (cr, size); + cairo_set_source_rgb (cr, 0., 0., 0.); + cairo_fill (cr); + cairo_restore (cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +pythagoras_tree_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "pythagoras-tree", NULL); +} + +void +pythagoras_tree (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "pythagoras-tree", do_pythagoras_tree, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/rectangles.c b/local/recipes/libs/cairo/source/perf/micro/rectangles.c new file mode 100644 index 0000000000..9228a4efa9 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/rectangles.c @@ -0,0 +1,121 @@ +/* + * Copyright © 2006 Dan Amelang + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the authors not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The authors make no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Dan Amelang + */ +#include "cairo-perf.h" + +#if 0 +#define MODE cairo_perf_run +#else +#define MODE cairo_perf_cover_sources_and_operators +#endif + +#define RECTANGLE_COUNT (1000) + +static struct { + double x; + double y; + double width; + double height; +} rects[RECTANGLE_COUNT]; + +static cairo_time_t +do_rectangles (cairo_t *cr, int width, int height, int loops) +{ + int i; + + cairo_perf_timer_start (); + + while (loops--) { + for (i = 0; i < RECTANGLE_COUNT; i++) { + cairo_rectangle (cr, rects[i].x, rects[i].y, + rects[i].width, rects[i].height); + cairo_fill (cr); + } + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_rectangles_once (cairo_t *cr, int width, int height, int loops) +{ + int i; + + cairo_perf_timer_start (); + + while (loops--) { + for (i = 0; i < RECTANGLE_COUNT; i++) { + cairo_rectangle (cr, rects[i].x, rects[i].y, + rects[i].width, rects[i].height); + } + + cairo_fill (cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_rectangle (cairo_t *cr, int width, int height, int loops) +{ + cairo_perf_timer_start (); + + while (loops--) { + cairo_rectangle (cr, 0, 0, width, height); + cairo_fill (cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +rectangles_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "rectangles", NULL); +} + +void +rectangles (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + int i; + + srand (8478232); + for (i = 0; i < RECTANGLE_COUNT; i++) + { + rects[i].x = rand () % width; + rects[i].y = rand () % height; + rects[i].width = (rand () % (width / 10)) + 1; + rects[i].height = (rand () % (height / 10)) + 1; + } + + MODE (perf, "one-rectangle", do_rectangle, NULL); + MODE (perf, "rectangles", do_rectangles, NULL); + MODE (perf, "rectangles-once", do_rectangles_once, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/rounded-rectangles.c b/local/recipes/libs/cairo/source/perf/micro/rounded-rectangles.c new file mode 100644 index 0000000000..1e432dd1fa --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/rounded-rectangles.c @@ -0,0 +1,144 @@ +/* + * Copyright © 2005 Owen Taylor + * Copyright © 2007 Dan Amelang + * Copyright © 2007 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the authors not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The authors make no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Chris Wilson + */ + +/* This perf case is derived from the bug report + * Gradient on 'rounded rectangle' MUCH slower than normal rectangle + * https://bugs.freedesktop.org/show_bug.cgi?id=4263. + */ + +#include "cairo-perf.h" + +#define RECTANGLE_COUNT (1000) + +#if 0 +#define MODE cairo_perf_run +#else +#define MODE cairo_perf_cover_sources_and_operators +#endif + +static struct +{ + double x; + double y; + double width; + double height; +} rects[RECTANGLE_COUNT]; + +static void +rounded_rectangle (cairo_t *cr, + double x, double y, double w, double h, + double radius) +{ + cairo_move_to (cr, x+radius, y); + cairo_arc (cr, x+w-radius, y+radius, radius, M_PI + M_PI / 2, M_PI * 2 ); + cairo_arc (cr, x+w-radius, y+h-radius, radius, 0, M_PI / 2 ); + cairo_arc (cr, x+radius, y+h-radius, radius, M_PI/2, M_PI ); + cairo_arc (cr, x+radius, y+radius, radius, M_PI, 270 * M_PI / 180); +} + +static cairo_time_t +do_rectangle (cairo_t *cr, int width, int height, int loops) +{ + cairo_perf_timer_start (); + + while (loops--) { + rounded_rectangle (cr, 0, 0, width, height, 3.0); + cairo_fill (cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_rectangles (cairo_t *cr, int width, int height, int loops) +{ + int i; + + cairo_perf_timer_start (); + + while (loops--) { + for (i = 0; i < RECTANGLE_COUNT; i++) { + rounded_rectangle (cr, + rects[i].x, rects[i].y, + rects[i].width, rects[i].height, + 3.0); + cairo_fill (cr); + } + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_rectangles_once (cairo_t *cr, int width, int height, int loops) +{ + int i; + + cairo_perf_timer_start (); + + while (loops--) { + for (i = 0; i < RECTANGLE_COUNT; i++) { + rounded_rectangle (cr, + rects[i].x, rects[i].y, + rects[i].width, rects[i].height, + 3.0); + } + cairo_fill (cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +rounded_rectangles_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "rounded-rectangles", NULL); +} + +void +rounded_rectangles (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + int i; + + srand (8478232); + for (i = 0; i < RECTANGLE_COUNT; i++) { + rects[i].x = rand () % width; + rects[i].y = rand () % height; + rects[i].width = (rand () % (width / 10)) + 1; + rects[i].height = (rand () % (height / 10)) + 1; + } + + MODE (perf, "one-rounded-rectangle", do_rectangle, NULL); + MODE (perf, "rounded-rectangles", do_rectangles, NULL); + MODE (perf, "rounded-rectangles-once", do_rectangles_once, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/sierpinski.c b/local/recipes/libs/cairo/source/perf/micro/sierpinski.c new file mode 100644 index 0000000000..c6f5fadc23 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/sierpinski.c @@ -0,0 +1,94 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-perf.h" + +static const double m_1_sqrt_3 = 0.577359269; + +static void +T (cairo_t *cr, int size) +{ + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, size, 0); + cairo_line_to (cr, size/2, size*m_1_sqrt_3); + + size /= 2; + if (size >= 4) { + T (cr, size); + cairo_save (cr); { + cairo_translate (cr, size, 0); + T (cr, size); + } cairo_restore (cr); + cairo_save (cr); { + cairo_translate (cr, size/2, size*m_1_sqrt_3); + T (cr, size); + } cairo_restore (cr); + } +} + +static cairo_time_t +draw (cairo_t *cr, int width, int height, int loops) +{ + int t_height = height/2; + int t_width = t_height / m_1_sqrt_3; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_line_width (cr, 1.); + + cairo_perf_timer_start (); + + while (loops--) { + cairo_save (cr); + T (cr, t_width); + + cairo_translate (cr, 0, height); + cairo_scale (cr, 1, -1); + + T (cr, t_width); + + cairo_stroke (cr); + cairo_restore (cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +sierpinski_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "sierpinski", NULL); +} + +void +sierpinski (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "sierpinski", draw, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/spiral.c b/local/recipes/libs/cairo/source/perf/micro/spiral.c new file mode 100644 index 0000000000..5db62b0d79 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/spiral.c @@ -0,0 +1,352 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright (c) 2008 M Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "cairo-perf.h" +#include + +#define MAX_SEGMENTS 2560 + +typedef enum { + PIXALIGN, /* pixel aligned path */ + NONALIGN /* unaligned path. */ +} align_t; + +typedef enum { + RECTCLOSE, /* keeps the path rectilinear */ + DIAGCLOSE /* forces a diagonal */ +} close_t; + +static cairo_time_t +draw_spiral (cairo_t *cr, + cairo_fill_rule_t fill_rule, + align_t align, + close_t close, + int width, int height, int loops) +{ + int i; + int n=0; + double x[MAX_SEGMENTS]; + double y[MAX_SEGMENTS]; + int step = 3; + int side = width < height ? width : height; + + assert(5*(side/step/2+1)+2 < MAX_SEGMENTS); + +#define L(x_,y_) (x[n] = (x_), y[n] = (y_), n++) +#define M(x_,y_) L(x_,y_) +#define v(t) L(x[n-1], y[n-1] + (t)) +#define h(t) L(x[n-1] + (t), y[n-1]) + + switch (align) { + case PIXALIGN: M(0,0); break; + case NONALIGN: M(0.1415926, 0.7182818); break; + } + + while (side >= step && side >= 0) { + v(side); + h(side); + v(-side); + h(-side+step); + v(step); + side -= 2*step; + } + + switch (close) { + case RECTCLOSE: L(x[n-1],y[0]); break; + case DIAGCLOSE: L(x[0],y[0]); break; + } + + assert(n < MAX_SEGMENTS); + + cairo_save (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_translate (cr, 1, 1); + cairo_set_fill_rule (cr, fill_rule); + cairo_set_source_rgb (cr, 1, 0, 0); + + cairo_new_path (cr); + cairo_move_to (cr, x[0], y[0]); + for (i = 1; i < n; i++) { + cairo_line_to (cr, x[i], y[i]); + } + cairo_close_path (cr); + + cairo_perf_timer_start (); + while (loops--) + cairo_fill_preserve (cr); + cairo_perf_timer_stop (); + + cairo_restore (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +draw_spiral_box (cairo_t *cr, + cairo_fill_rule_t fill_rule, + align_t align, + int width, int height, int loops) +{ + const int step = 3; + int side = (width < height ? width : height) - 2; + + cairo_save (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_fill_rule (cr, fill_rule); + cairo_translate (cr, 1, 1); + if (align == NONALIGN) + cairo_translate (cr, 0.1415926, 0.7182818); + + cairo_new_path (cr); + while (side >= step) { + cairo_rectangle (cr, 0, 0, side, side); + cairo_translate (cr, step, step); + side -= 2*step; + } + + cairo_perf_timer_start (); + while (loops--) + cairo_fill_preserve (cr); + cairo_perf_timer_stop (); + + cairo_restore (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +draw_spiral_stroke (cairo_t *cr, + align_t align, + int width, int height, int loops) +{ + const int step = 3; + int side = width < height ? width : height; + + cairo_save (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_translate (cr, 1, 1); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, 4.); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + + cairo_new_path (cr); + switch (align) { + case PIXALIGN: cairo_move_to (cr, 0,0); break; + case NONALIGN: cairo_move_to (cr, 0.1415926, 0.7182818); break; + } + while (side >= step) { + cairo_rel_line_to (cr, 0, side); + side -= step; + if (side <= 0) + break; + + cairo_rel_line_to (cr, side, 0); + side -= step; + if (side <= 0) + break; + + cairo_rel_line_to (cr, 0, -side); + side -= step; + if (side <= 0) + break; + + cairo_rel_line_to (cr, -side, 0); + side -= step; + if (side <= 0) + break; + } + + cairo_perf_timer_start (); + while (loops--) + cairo_stroke_preserve (cr); + cairo_perf_timer_stop (); + + cairo_restore (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +draw_spiral_eo_pa_re (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_EVEN_ODD, + PIXALIGN, + RECTCLOSE, + width, height, loops); +} + +static cairo_time_t +draw_spiral_nz_pa_re (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_WINDING, + PIXALIGN, + RECTCLOSE, + width, height, loops); +} + +static cairo_time_t +draw_spiral_eo_na_re (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_EVEN_ODD, + NONALIGN, + RECTCLOSE, + width, height, loops); +} + +static cairo_time_t +draw_spiral_nz_na_re (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_WINDING, + NONALIGN, + RECTCLOSE, + width, height, loops); +} + +static cairo_time_t +draw_spiral_eo_pa_di (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_EVEN_ODD, + PIXALIGN, + DIAGCLOSE, + width, height, loops); +} + +static cairo_time_t +draw_spiral_nz_pa_di (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_WINDING, + PIXALIGN, + DIAGCLOSE, + width, height, loops); +} + +static cairo_time_t +draw_spiral_eo_na_di (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_EVEN_ODD, + NONALIGN, + DIAGCLOSE, + width, height, loops); +} + +static cairo_time_t +draw_spiral_nz_na_di (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral (cr, + CAIRO_FILL_RULE_WINDING, + NONALIGN, + DIAGCLOSE, + width, height, loops); +} + +static cairo_time_t +draw_spiral_nz_pa_box (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral_box (cr, + CAIRO_FILL_RULE_WINDING, PIXALIGN, + width, height, loops); +} + +static cairo_time_t +draw_spiral_nz_na_box (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral_box (cr, + CAIRO_FILL_RULE_WINDING, NONALIGN, + width, height, loops); +} + + +static cairo_time_t +draw_spiral_eo_pa_box (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral_box (cr, + CAIRO_FILL_RULE_EVEN_ODD, PIXALIGN, + width, height, loops); +} + +static cairo_time_t +draw_spiral_eo_na_box (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral_box (cr, + CAIRO_FILL_RULE_EVEN_ODD, NONALIGN, + width, height, loops); +} + +static cairo_time_t +draw_spiral_stroke_pa (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral_stroke (cr, + PIXALIGN, + width, height, loops); +} + +static cairo_time_t +draw_spiral_stroke_na (cairo_t *cr, int width, int height, int loops) +{ + return draw_spiral_stroke (cr, + NONALIGN, + width, height, loops); +} + +cairo_bool_t +spiral_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "spiral", NULL); +} + +void +spiral (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "spiral-box-nonalign-evenodd-fill", draw_spiral_eo_na_box, NULL); + cairo_perf_run (perf, "spiral-box-nonalign-nonzero-fill", draw_spiral_nz_na_box, NULL); + cairo_perf_run (perf, "spiral-box-pixalign-evenodd-fill", draw_spiral_eo_pa_box, NULL); + cairo_perf_run (perf, "spiral-box-pixalign-nonzero-fill", draw_spiral_nz_pa_box, NULL); + cairo_perf_run (perf, "spiral-diag-nonalign-evenodd-fill", draw_spiral_eo_na_di, NULL); + cairo_perf_run (perf, "spiral-diag-nonalign-nonzero-fill", draw_spiral_nz_na_di, NULL); + cairo_perf_run (perf, "spiral-diag-pixalign-evenodd-fill", draw_spiral_eo_pa_di, NULL); + cairo_perf_run (perf, "spiral-diag-pixalign-nonzero-fill", draw_spiral_nz_pa_di, NULL); + cairo_perf_run (perf, "spiral-rect-nonalign-evenodd-fill", draw_spiral_eo_na_re, NULL); + cairo_perf_run (perf, "spiral-rect-nonalign-nonzero-fill", draw_spiral_nz_na_re, NULL); + cairo_perf_run (perf, "spiral-rect-pixalign-evenodd-fill", draw_spiral_eo_pa_re, NULL); + cairo_perf_run (perf, "spiral-rect-pixalign-nonzero-fill", draw_spiral_nz_pa_re, NULL); + cairo_perf_run (perf, "spiral-nonalign-stroke", draw_spiral_stroke_na, NULL); + cairo_perf_run (perf, "spiral-pixalign-stroke", draw_spiral_stroke_pa, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/stroke.c b/local/recipes/libs/cairo/source/perf/micro/stroke.c new file mode 100644 index 0000000000..4b29547709 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/stroke.c @@ -0,0 +1,100 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-perf.h" + +static cairo_time_t +do_stroke (cairo_t *cr, int width, int height, int loops) +{ + cairo_arc (cr, + width/2.0, height/2.0, + width/3.0, + 0, 2 * M_PI); + cairo_close_path (cr); + + cairo_set_line_width (cr, width/5.0); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static void +rounded_rectangle (cairo_t *cr, + double x, double y, double w, double h, + double radius) +{ + cairo_move_to (cr, x+radius, y); + cairo_arc (cr, x+w-radius, y+radius, radius, M_PI + M_PI / 2, M_PI * 2 ); + cairo_arc (cr, x+w-radius, y+h-radius, radius, 0, M_PI / 2 ); + cairo_arc (cr, x+radius, y+h-radius, radius, M_PI/2, M_PI ); + cairo_arc (cr, x+radius, y+radius, radius, M_PI, 270 * M_PI / 180); +} + +static cairo_time_t +do_strokes (cairo_t *cr, int width, int height, int loops) +{ + /* a pair of overlapping rectangles */ + rounded_rectangle (cr, + 2, 2, width/2. + 10, height/2. + 10, + 10); + rounded_rectangle (cr, + width/2. - 10, height/2. - 10, + width/2. - 2, height/2. - 2, + 10); + + cairo_set_line_width (cr, 2.); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +stroke_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "stroke", NULL); +} + +void +stroke (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_cover_sources_and_operators (perf, "stroke", do_stroke, NULL); + cairo_perf_cover_sources_and_operators (perf, "strokes", do_strokes, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/subimage_copy.c b/local/recipes/libs/cairo/source/perf/micro/subimage_copy.c new file mode 100644 index 0000000000..e749c062fb --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/subimage_copy.c @@ -0,0 +1,80 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-perf.h" + +/* This case exposes a performance bug found by Christopher "Monty" + * Montgomery in that copying a tiny portion of an image surface to an + * X surface causes the entire image surface to be copied to an + * intermediate surface. + * + * If the performance bug is fixed, then the time this test takes + * should be independent of the source and destination surface sizes. + */ + +static cairo_time_t +do_subimage_copy (cairo_t *cr, int width, int height, int loops) +{ + cairo_rectangle (cr, 2, 2, 4, 4); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +subimage_copy_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "subimage-copy", NULL); +} + +void +subimage_copy (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_surface_t *image; + cairo_t *cr2; + + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_paint (cr); + + image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height); + cr2 = cairo_create (image); + cairo_set_source_rgb (cr2, 1, 0, 0); /* red */ + cairo_paint (cr2); + cairo_destroy (cr2); + + cairo_set_source_surface (cr, image, 0, 0); + cairo_surface_destroy (image); + + cairo_perf_run (perf, "subimage-copy", do_subimage_copy, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/tessellate.c b/local/recipes/libs/cairo/source/perf/micro/tessellate.c new file mode 100644 index 0000000000..b6277fe635 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/tessellate.c @@ -0,0 +1,181 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-perf.h" + +typedef struct { + double x; + double y; +} point_t; + +point_t points[300] = { + {39.4383,84.0188}, {79.844,78.3099}, {19.7551,91.1647}, {76.823,33.5223}, {55.397,27.7775}, + {62.8871,47.7397}, {51.3401,36.4784}, {91.6195,95.223}, {71.7297,63.5712}, {60.6969,14.1603}, + {24.2887,1.63006}, {80.4177,13.7232}, {40.0944,15.6679}, {10.8809,12.979}, {21.8257,99.8925}, + {83.9112,51.2932}, {29.6032,61.264}, {52.4287,63.7552}, {97.2775,49.3583}, {77.1358,29.2517}, + {76.9914,52.6745}, {89.1529,40.0229}, {35.2458,28.3315}, {91.9026,80.7725}, {94.9327,6.97553}, + {8.60558,52.5995}, {66.3227,19.2214}, {34.8893,89.0233}, {2.0023,6.41713}, {6.30958,45.7702}, + {97.0634,23.828}, {85.092,90.2208}, {53.976,26.6666}, {76.0249,37.5207}, {66.7724,51.2535}, + {3.92803,53.1606}, {93.1835,43.7638}, {72.0952,93.081}, {73.8534,28.4293}, {35.4049,63.9979}, + {16.5974,68.7861}, {88.0075,44.0105}, {33.0337,82.9201}, {89.3372,22.8968}, {68.667,35.036}, + {58.864,95.6468}, {85.8676,65.7304}, {92.397,43.956}, {81.4767,39.8437}, {91.0972,68.4219}, + + {21.5825,48.2491}, {92.0128,95.0252}, {88.1062,14.766}, {43.1953,64.1081}, {28.1059,61.9596}, + {30.7458,78.6002}, {22.6107,44.7034}, {27.6235,18.7533}, {41.6501,55.6444}, {90.6804,16.9607}, + {12.6075,10.3171}, {76.0475,49.5444}, {93.5004,98.4752}, {38.3188,68.4445}, {36.8664,74.9771}, + {23.2262,29.416}, {24.4413,58.4489}, {73.2149,15.239}, {79.347,12.5475}, {74.5071,16.4102}, + {95.0104,7.45298}, {52.1563,5.25293}, {24.0062,17.6211}, {73.2654,79.7798}, {96.7405,65.6564}, + {75.9735,63.9458}, {13.4902,9.34805}, {7.82321,52.021}, {20.4655,6.99064}, {81.9677,46.142}, + {75.5581,57.3319}, {15.7807,5.19388}, {20.4329,99.9994}, {12.5468,88.9956}, {5.40576,99.7799}, + {7.23288,87.054}, {92.3069,0.416161}, {18.0372,59.3892}, {39.169,16.3131}, {81.9695,91.3027}, + {55.2485,35.9095}, {45.2576,57.943}, {9.96401,68.7387}, {75.7294,53.0808}, {99.2228,30.4295}, + {87.7614,57.6971}, {62.891,74.7809}, {74.7803,3.54209}, {92.5377,83.3239}, {83.1038,87.3271}, + + {74.3811,97.9434}, {98.3596,90.3366}, {49.7259,66.688}, {83.0012,16.3968}, {7.69947,88.8949}, + {24.8044,64.9707}, {22.9137,62.948}, {31.6867,70.062}, {23.1428,32.8777}, {63.3072,7.4161}, + {65.1132,22.3656}, {97.1466,51.0686}, {54.6107,28.0042}, {11.3281,71.9269}, {59.254,47.1483}, + {45.0918,94.4318}, {84.7684,33.6351}, {0.323146,43.4513}, {59.8481,34.4943}, {23.3892,83.3243}, + {48.295,67.5476}, {30.4956,48.1936}, {18.2556,71.2087}, {4.08643,62.1823}, {69.5984,41.3984}, + {63.764,67.3936}, {18.4622,34.7116}, {62.7158,60.9106}, {32.8374,73.0729}, {20.2213,74.0438}, + {68.4757,92.0914}, {25.7265,65.313}, {8.76436,53.2441}, {87.7384,26.0497}, {9.37402,68.6125}, + {36.1601,11.1276}, {59.3211,57.6691}, {28.8778,66.6557}, {28.8379,77.5767}, {18.9751,32.9642}, + {0.357857,98.4363}, {33.1479,82.7391}, {43.6497,18.8201}, {91.893,95.8637}, {69.9075,76.4871}, + {68.5786,12.1143}, {77.4273,38.3832}, {91.6273,94.3051}, {20.3548,86.1917}, {54.8042,79.3657}, + + {90.4932,29.7288}, {87.3979,90.9643}, {57.62,49.8144}, {27.3911,16.2757}, {49.2399,86.4579}, + {84.8942,46.3662}, {29.1053,49.5977}, {68.4178,18.0421}, {13.9058,72.755}, {49.2422,60.3109}, + {72.4252,83.8134}, {22.1966,17.8208}, {12.1259,49.8525}, {36.0443,13.8238}, {93.1895,32.4807}, + {62.2095,90.8485}, {81.8128,83.6828}, {33.4972,49.6074}, {65.8831,39.4327}, {25.8906,60.8883}, + {7.2545,15.123}, {64.7207,10.7848}, {28.827,36.3598}, {9.11486,33.1386}, {93.4495,42.7328}, + {26.5461,58.357}, {76.1778,65.8747}, {15.7272,48.7427}, {62.5665,88.3037}, {20.7844,51.7715}, + {42.6199,55.7561}, {39.4388,82.9939}, {32.6013,24.4327}, {63.8654,72.936}, {33.8243,98.4845}, + {13.6075,89.756}, {0.540855,41.0788}, {77.4386,78.3282}, {11.4668,29.3678}, {72.1006,86.5535}, + {44.9105,4.91625}, {70.7909,98.6467}, {47.3894,21.0883}, {9.39195,86.5181}, {38.2896,9.95593}, + {65.712,30.1763}, {13.1702,80.9095}, {5.34223,5.15083}, {78.0868,45.7716}, {44.256,69.2076}, + + {58.9637,11.9111}, {52.9899,57.8635}, {36.1917,59.5045}, {88.8723,30.4285}, {16.982,47.6585}, + {52.5747,60.9729}, {59.6196,61.8925}, {82.9808,23.3656}, {9.88374,7.00902}, {16.965,92.3728}, + {22.5491,48.1733}, {29.0829,82.6769}, {87.8278,35.7193}, {81.4909,34.4251}, {3.63274,65.9146}, + {77.8257,25.7469}, {83.6104,62.5964}, {22.1009,30.8157}, {61.2442,19.8021}, {67.4605,10.9733}, + {71.9462,78.2262}, {40.1188,20.0352}, {43.4009,31.5658}, {38.5748,23.0996}, {15.4724,53.2846}, + {1.45793,55.5398}, {38.2167,38.0215}, {73.7408,30.5408}, {64.9659,26.0445}, {91.9591,55.2316}, + {80.9785,68.5986}, {31.195,69.7848}, {0.600477,64.5889}, {84.391,53.296}, {64.2693,61.8447}, + {40.0709,51.8515}, {71.8867,36.2154}, {67.7812,80.1897}, {3.28927,15.2876}, {68.5722,6.35606}, + {61.8958,18.7616}, {56.7831,70.0301}, {0.570914,0.112548}, {26.157,30.5239}, {85.7555,65.5368}, + {34.1354,18.1161}, {87.9009,66.7341}, {31.323,65.3305}, {18.6265,88.5014}, {50.3461,15.7139}, + + {67.5654,82.8957}, {19.1112,90.417}, {70.6067,39.4521}, {54.7397,86.8924}, {93.2485,73.8959}, + {92.6576,23.3119}, {93.342,55.1443}, {55.2568,49.4407}, {79.9646,93.9129}, {59.4497,81.4139}, + {99.53,65.7201}, {32.4541,93.5852}, {58.9157,87.4309}, {75.9324,63.7771}, {79.491,77.5421}, + {60.4379,26.2785}, {16.6955,47.0564}, {86.5086,79.549}, {66.4414,87.3021}, {61.1981,41.2483}, + {64.5601,59.6899}, {14.8342,53.8557}, {3.29634,57.9022}, {51.8151,70.091}, {51.5049,83.2609}, + {48.981,11.2648}, {4.84997,51.0349}, {38.4658,81.4351}, {45.2122,63.7656}, {41.3078,14.3982}, + {40.6767,24.7033}, {71.7597,1.74566}, {81.2947,57.3721}, {44.6743,58.2682}, {99.5165,47.7361}, + {7.42604,5.87232}, {59.728,64.0766}, {21.9788,22.2602}, {92.3513,63.0243}, {46.2852,73.7939}, + {85.0586,43.8562}, {94.8911,95.2662}, {76.7014,89.9086}, {53.6742,33.3569}, {47.7551,21.9136}, + {46.6169,94.982}, {96.7277,88.4318}, {45.8039,18.3765}, {76.6448,78.0224}, {25.7585,90.4782} +}; + +static cairo_time_t +do_tessellate (cairo_t *cr, int num_points, int loops) +{ + int i; + + for (i=0; i < num_points; i++) + cairo_line_to (cr, points[i].x, points[i].y); + + cairo_perf_timer_start (); + + /* We'd like to measure just tessellation without + * rasterization. For now, we can do that with cairo_in_fill. But + * we'll have to be careful since cairo_in_fill might eventually + * be optimized to have an implementation that doesn't necessarily + * include tessellation. */ + while (loops--) + cairo_in_fill (cr, 50, 50); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +tessellate_16 (cairo_t *cr, int width, int height, int loops) +{ + return do_tessellate (cr, 16, loops); +} + +static cairo_time_t +tessellate_64 (cairo_t *cr, int width, int height, int loops) +{ + return do_tessellate (cr, 64, loops); +} + +static cairo_time_t +tessellate_256 (cairo_t *cr, int width, int height, int loops) +{ + return do_tessellate (cr, 256, loops); +} + +cairo_bool_t +tessellate_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "tessellate", NULL); +} + +void +tessellate (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "tessellate-16", tessellate_16, NULL); + cairo_perf_run (perf, "tessellate-64", tessellate_64, NULL); + cairo_perf_run (perf, "tessellate-256", tessellate_256, NULL); +} + +#if 0 +double +rand_within (double range) +{ + return range * (rand() / (RAND_MAX + 1.0)); +} + +int +main (void) +{ +#define SIZE 100 + int i; + + printf ("point_t points[] = {\n"); + + for (i=0; i < 1000; i++) { + printf (" {%g,%g},", rand_within (SIZE), rand_within (SIZE)); + if (i % 5 == 4) + printf ("\n"); + } + + printf ("};\n"); +} +#endif diff --git a/local/recipes/libs/cairo/source/perf/micro/text.c b/local/recipes/libs/cairo/source/perf/micro/text.c new file mode 100644 index 0000000000..cdb319936d --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/text.c @@ -0,0 +1,69 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-perf.h" + +static cairo_time_t +do_text (cairo_t *cr, int width, int height, int loops) +{ + const char text[] = "the jay, pig, fox, zebra and my wolves quack"; + int len = strlen (text); + double x, y; + int i = 0, j = 0; + + cairo_set_font_size (cr, 9); + + cairo_perf_timer_start (); + + while (loops--) { + do { + cairo_move_to (cr, 0, j++ * 10); + cairo_show_text (cr, text + i); + cairo_get_current_point (cr, &x, &y); + while (x < width && cairo_status (cr) == CAIRO_STATUS_SUCCESS) { + cairo_show_text (cr, text); + cairo_get_current_point (cr, &x, &y); + } + if (++i >= len) + i = 0; + } while (y < height && cairo_status (cr) == CAIRO_STATUS_SUCCESS); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +text_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "text", NULL); +} + +void +text (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_cover_sources_and_operators (perf, "text", do_text, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/tiger.c b/local/recipes/libs/cairo/source/perf/micro/tiger.c new file mode 100644 index 0000000000..9e7a9419af --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/tiger.c @@ -0,0 +1,115 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-perf.h" + +#ifdef HAVE_UNISTD_H +#include +#endif + +#include "../../test/tiger.inc" + +static cairo_time_t +do_tiger (cairo_t *cr, int width, int height, int loops) +{ + unsigned int i; + + cairo_perf_timer_start (); + + while (loops--) { + cairo_identity_matrix (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgba (cr, 0.1, 0.2, 0.3, 1.0); + cairo_paint (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + + cairo_translate (cr, width/2, height/2); + cairo_scale (cr, .85 * width/500, .85 * height/500); + + for (i = 0; i < sizeof (tiger_commands)/sizeof(tiger_commands[0]);i++) { + const struct command *cmd = &tiger_commands[i]; + switch (cmd->type) { + case 'm': + cairo_move_to (cr, cmd->x0, cmd->y0); + break; + case 'l': + cairo_line_to (cr, cmd->x0, cmd->y0); + break; + case 'c': + cairo_curve_to (cr, + cmd->x0, cmd->y0, + cmd->x1, cmd->y1, + cmd->x2, cmd->y2); + break; + case 'f': + cairo_set_source_rgba (cr, + cmd->x0, cmd->y0, cmd->x1, cmd->y1); + cairo_fill (cr); + break; + } + } + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_mono_tiger (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + return do_tiger (cr, width, height, loops); +} + +static cairo_time_t +do_fast_tiger (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_FAST); + return do_tiger (cr, width, height, loops); +} + +static cairo_time_t +do_best_tiger (cairo_t *cr, int width, int height, int loops) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_BEST); + return do_tiger (cr, width, height, loops); +} + +cairo_bool_t +tiger_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "tiger", NULL); +} + +void +tiger (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "tiger-mono", do_mono_tiger, NULL); + cairo_perf_run (perf, "tiger-fast", do_fast_tiger, NULL); + cairo_perf_run (perf, "tiger-best", do_best_tiger, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/twin.c b/local/recipes/libs/cairo/source/perf/micro/twin.c new file mode 100644 index 0000000000..99433bd65c --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/twin.c @@ -0,0 +1,59 @@ +#define WIDTH 1350 +#define HEIGHT 900 + +#include "cairo-perf.h" + +static cairo_time_t +do_twin (cairo_t *cr, + int width, + int height, + int loops) +{ + int i, j, h; + unsigned char s[2] = {0, 0}; + + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_select_font_face (cr, + "@cairo:", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + cairo_perf_timer_start (); + + while (loops--) { + h = 2; + for (i = 8; i < 48; i >= 24 ? i+=3 : i++) { + cairo_set_font_size (cr, i); + for (j = 33; j < 128; j++) { + if (j == 33 || (j == 80 && i > 24)) { + h += i + 2; + cairo_move_to (cr, 10, h); + } + s[0] = j; + cairo_text_path (cr, (const char *) s); + } + } + cairo_fill (cr); + } + + cairo_perf_timer_stop (); + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +twin_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "twin", NULL); +} + +void +twin (cairo_perf_t *perf, + cairo_t *cr, + int width, + int height) +{ + cairo_perf_run (perf, "twin", do_twin, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/unaligned-clip.c b/local/recipes/libs/cairo/source/perf/micro/unaligned-clip.c new file mode 100644 index 0000000000..41e327f1e7 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/unaligned-clip.c @@ -0,0 +1,73 @@ +/* + * Copyright © 2006 Jeff Muizelaar + * Copyright © 2006 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Authors: Jeff Muizelaar + * Carl Worth + */ + +#include "cairo-perf.h" + +static cairo_time_t +do_unaligned_clip (cairo_t *cr, int width, int height, int loops) +{ + cairo_perf_timer_start (); + + while (loops--) { + cairo_save (cr); + + /* First a triangular clip that obviously isn't along device-pixel + * boundaries. */ + cairo_move_to (cr, 50, 50); + cairo_line_to (cr, 50, 90); + cairo_line_to (cr, 90, 90); + cairo_close_path (cr); + cairo_clip (cr); + + /* Then a rectangular clip that would be but for the non-integer + * scaling. */ + cairo_scale (cr, 1.1, 1.1); + cairo_rectangle (cr, 55, 55, 35, 35); + cairo_clip (cr); + + /* And paint something to force the clip to be evaluated. */ + cairo_paint (cr); + + cairo_restore (cr); + } + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +unaligned_clip_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "unaligned-clip", NULL); +} + +void +unaligned_clip (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "unaligned-clip", do_unaligned_clip, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/wave.c b/local/recipes/libs/cairo/source/perf/micro/wave.c new file mode 100644 index 0000000000..f6e6f74a38 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/wave.c @@ -0,0 +1,115 @@ +/* + * Copyright 2011 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + */ + +#include "cairo-perf.h" + +static cairo_surface_t * +generate_random_waveform(cairo_t *target, int width, int height) +{ + cairo_surface_t *surface; + cairo_t *cr; + int i, r; + + srand (0xdeadbeef); + + surface = cairo_surface_create_similar (cairo_get_target (target), + CAIRO_CONTENT_ALPHA, + width, height); + cr = cairo_create (surface); + + r = height / 2; + + for (i = 0; i < width; i++) + { + r += rand () % (height / 4) - (height / 8); + if (r < 0) + r = 0; + else if (r > height) + r = height; + cairo_rectangle (cr, i, (height - r) / 2, 1, r); + } + cairo_fill (cr); + cairo_destroy (cr); + + return surface; +} + +static cairo_time_t +do_wave (cairo_t *cr, int width, int height, int loops) +{ + cairo_surface_t *wave; + cairo_pattern_t *mask; + + wave = generate_random_waveform (cr, width, height); + + cairo_perf_timer_start (); + + while (loops--) { + /* paint outline (and contents) */ + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_mask_surface (cr, wave, 0, 0); + + /* overdraw inline */ + /* first, create a mask */ + cairo_push_group_with_content (cr, CAIRO_CONTENT_ALPHA); + cairo_set_source_surface (cr, wave, 0, 0); + cairo_paint (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_IN); + cairo_set_source_surface (cr, wave, 1, 0); + cairo_paint (cr); + cairo_set_source_surface (cr, wave, -1, 0); + cairo_paint (cr); + cairo_set_source_surface (cr, wave, 0, 1); + cairo_paint (cr); + cairo_set_source_surface (cr, wave, 0, -1); + cairo_paint (cr); + mask = cairo_pop_group (cr); + + /* second, paint the mask */ + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_mask (cr, mask); + + cairo_pattern_destroy (mask); + } + + cairo_perf_timer_stop (); + + cairo_surface_destroy (wave); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +wave_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "wave", NULL); +} + +void +wave (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "wave", do_wave, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/wide-fills.c b/local/recipes/libs/cairo/source/perf/micro/wide-fills.c new file mode 100644 index 0000000000..0747e6e679 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/wide-fills.c @@ -0,0 +1,187 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + + +/* This is a variant on wide strokes where we precompute + * a simplified stroke-to-path. + * When we have a real stroke-to-path, it would useful to compare the cost + * of stroking vs filling the "identical" paths. + */ + +#include "cairo-perf.h" + +static uint32_t state; + +static double +uniform_random (double minval, double maxval) +{ + static uint32_t const poly = 0x9a795537U; + uint32_t n = 32; + while (n-->0) + state = 2*state < state ? (2*state ^ poly) : 2*state; + return minval + state * (maxval - minval) / 4294967296.0; +} + +static cairo_time_t +do_wide_fills_ha (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double y = floor (uniform_random (0, height)); + double x = floor (uniform_random (0, width)); + cairo_rectangle (cr, x, y, ceil (uniform_random (0, width)) - x, 5); + } + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_wide_fills_h (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double y = uniform_random (0, height); + double x = uniform_random (0, width); + cairo_rectangle (cr, x, y, uniform_random (0, width) - x, 5); + } + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_wide_fills_va (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double x = floor (uniform_random (0, width)); + double y = floor (uniform_random (0, height)); + cairo_rectangle (cr, x, y, 5, ceil (uniform_random (0, height) - y)); + } + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_wide_fills_v (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double x = uniform_random (0, width); + double y = uniform_random (0, height); + cairo_rectangle (cr, x, y, 5, uniform_random (0, height) - y); + } + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_wide_fills (cairo_t *cr, int width, int height, int loops) +{ + int count; + + /* lots and lots of overlapping stroke-like fills */ + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + cairo_save (cr); + cairo_translate (cr, + uniform_random (0, width), + uniform_random (0, height)); + cairo_rotate (cr, uniform_random (-M_PI,M_PI)); + cairo_rectangle (cr, 0, 0, uniform_random (0, width), 5); + cairo_restore (cr); + } + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +wide_fills_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "wide-fills", NULL); +} + +void +wide_fills (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "wide-fills-halign", do_wide_fills_ha, NULL); + cairo_perf_run (perf, "wide-fills-valign", do_wide_fills_va, NULL); + cairo_perf_run (perf, "wide-fills-horizontal", do_wide_fills_h, NULL); + cairo_perf_run (perf, "wide-fills-vertical", do_wide_fills_v, NULL); + cairo_perf_run (perf, "wide-fills-random", do_wide_fills, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/wide-strokes.c b/local/recipes/libs/cairo/source/perf/micro/wide-strokes.c new file mode 100644 index 0000000000..1413091482 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/wide-strokes.c @@ -0,0 +1,188 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-perf.h" + +static uint32_t state; + +static double +uniform_random (double minval, double maxval) +{ + static uint32_t const poly = 0x9a795537U; + uint32_t n = 32; + while (n-->0) + state = 2*state < state ? (2*state ^ poly) : 2*state; + return minval + state * (maxval - minval) / 4294967296.0; +} + +static cairo_time_t +do_wide_strokes_ha (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double h = floor (uniform_random (0, height)); + cairo_move_to (cr, floor (uniform_random (0, width)), h); + cairo_line_to (cr, ceil (uniform_random (0, width)), h); + } + + cairo_set_line_width (cr, 5.); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_wide_strokes_h (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double h = uniform_random (0, height); + cairo_move_to (cr, uniform_random (0, width), h); + cairo_line_to (cr, uniform_random (0, width), h); + } + + cairo_set_line_width (cr, 5.); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_wide_strokes_va (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double v = floor (uniform_random (0, width)); + cairo_move_to (cr, v, floor (uniform_random (0, height))); + cairo_line_to (cr, v, ceil (uniform_random (0, height))); + } + + cairo_set_line_width (cr, 5.); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_wide_strokes_v (cairo_t *cr, int width, int height, int loops) +{ + int count; + + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + double v = uniform_random (0, width); + cairo_move_to (cr, v, uniform_random (0, height)); + cairo_line_to (cr, v, uniform_random (0, height)); + } + + cairo_set_line_width (cr, 5.); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_wide_strokes (cairo_t *cr, int width, int height, int loops) +{ + int count; + + /* lots and lots of overlapping strokes */ + state = 0xc0ffee; + for (count = 0; count < 1000; count++) { + cairo_line_to (cr, + uniform_random (0, width), + uniform_random (0, height)); + } + + cairo_set_line_width (cr, 5.); + + cairo_perf_timer_start (); + + while (loops--) + cairo_stroke_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +wide_strokes_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "wide-strokes", NULL); +} + +void +wide_strokes (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1., 1., 1.); + + cairo_perf_run (perf, "wide-strokes-halign", do_wide_strokes_ha, NULL); + cairo_perf_run (perf, "wide-strokes-valign", do_wide_strokes_va, NULL); + cairo_perf_run (perf, "wide-strokes-horizontal", do_wide_strokes_h, NULL); + cairo_perf_run (perf, "wide-strokes-vertical", do_wide_strokes_v, NULL); + cairo_perf_run (perf, "wide-strokes-random", do_wide_strokes, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/world-map.c b/local/recipes/libs/cairo/source/perf/micro/world-map.c new file mode 100644 index 0000000000..ff22eebf33 --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/world-map.c @@ -0,0 +1,149 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-perf.h" + +#ifdef HAVE_UNISTD_H +#include +#endif + +typedef enum { + WM_NEW_PATH, + WM_MOVE_TO, + WM_LINE_TO, + WM_HLINE_TO, + WM_VLINE_TO, + WM_REL_LINE_TO, + WM_END +} wm_type_t; + +typedef struct _wm_element { + wm_type_t type; + double x; + double y; +} wm_element_t; + +#include "world-map.h" + +enum { + STROKE = 1, + FILL = 2, +}; + +static cairo_time_t +do_world_map (cairo_t *cr, int width, int height, int loops, int mode) +{ + const wm_element_t *e; + double cx, cy; + + cairo_set_line_width (cr, 0.2); + + cairo_perf_timer_start (); + + while (loops--) { + cairo_set_source_rgb (cr, .68, .85, .90); /* lightblue */ + cairo_rectangle (cr, 0, 0, 800, 400); + cairo_fill (cr); + + e = &countries[0]; + while (1) { + switch (e->type) { + case WM_NEW_PATH: + case WM_END: + if (mode & FILL) { + cairo_set_source_rgb (cr, .75, .75, .75); /* silver */ + cairo_fill_preserve (cr); + } + if (mode & STROKE) { + cairo_set_source_rgb (cr, .50, .50, .50); /* gray */ + cairo_stroke (cr); + } + cairo_new_path (cr); + cairo_move_to (cr, e->x, e->y); + break; + case WM_MOVE_TO: + cairo_close_path (cr); + cairo_move_to (cr, e->x, e->y); + break; + case WM_LINE_TO: + cairo_line_to (cr, e->x, e->y); + break; + case WM_HLINE_TO: + cairo_get_current_point (cr, &cx, &cy); + cairo_line_to (cr, e->x, cy); + break; + case WM_VLINE_TO: + cairo_get_current_point (cr, &cx, &cy); + cairo_line_to (cr, cx, e->y); + break; + case WM_REL_LINE_TO: + cairo_rel_line_to (cr, e->x, e->y); + break; + } + if (e->type == WM_END) + break; + e++; + } + + cairo_new_path (cr); + } + + cairo_perf_timer_stop (); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +do_world_map_stroke (cairo_t *cr, int width, int height, int loops) +{ + return do_world_map (cr, width, height, loops, STROKE); +} + +static cairo_time_t +do_world_map_fill (cairo_t *cr, int width, int height, int loops) +{ + return do_world_map (cr, width, height, loops, FILL); +} + +static cairo_time_t +do_world_map_both (cairo_t *cr, int width, int height, int loops) +{ + return do_world_map (cr, width, height, loops, FILL | STROKE); +} + +cairo_bool_t +world_map_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "world-map", NULL); +} + +void +world_map (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + cairo_perf_run (perf, "world-map-stroke", do_world_map_stroke, NULL); + cairo_perf_run (perf, "world-map-fill", do_world_map_fill, NULL); + cairo_perf_run (perf, "world-map", do_world_map_both, NULL); +} diff --git a/local/recipes/libs/cairo/source/perf/micro/world-map.h b/local/recipes/libs/cairo/source/perf/micro/world-map.h new file mode 100644 index 0000000000..af58b80f1c --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/world-map.h @@ -0,0 +1,196 @@ +/* The data for this test case was provided by Gary Nicholson + * who originally created an interactive SVG map + * of the world as can be seen here: + * + * http://www.wherearewe.co.nz/svg.html + * + * The data is used here by permission from Gary given on 2006-11-08: + * + * Thanks for asking, I don't need any attribution if you are + * only using the vectors and not the entire map with + * interactivity etc. So feel free to do what you wish with + * the data. + */ + +#define N(x,y) { WM_NEW_PATH, x, y } +#define M(x,y) { WM_MOVE_TO, x, y } +#define L(x,y) { WM_LINE_TO, x, y } +#define H(x,y) { WM_HLINE_TO, x, y } +#define V(x,y) { WM_VLINE_TO, x, y } +#define l(x,y) { WM_REL_LINE_TO, x, y } +#define E(x,y) { WM_END, x, y } + +static const wm_element_t countries[] = { +N(413.519,90.071),l(.136,-.348),l(-.31,-.204),l(-.017,-.327),l(.213,-.322),l(.245,-.147),l(.142,-.08),l(.225,.072),l(.062,.301),l(.41,.312),l(.466,.096),l(-.044,.288),l(-.248,.144),l(.074,.353),l(-.145,-.063),l(-.568,-.011),l(-.642,-.063), +N(421.683,94.397),l(.193,.336),l(-.266,.274),l(.214,.288),l(-.09,.192),l(.622,.062),l(.008,.144),l(.55,.242),l(.579,-.332),l(.215,.117),l(-.029,.171),l(-.126,.309),l(.112,.212),l(-.038,.192),l(-.315,-.051),l(-.176,-.162),l(-.283,.091),l(-.081,.273),l(.244,.131),l(-.228,.415),l(-.244,-.333),l(-.469,.05),l(-.071,.122),l(-.216,.03),l(-.23,-.142),l(-.143,-.354),l(-.371,.081),l(.019,.333),l(-.425,.384),l(-.018,.535),l(-.285,.151),l(-.385,-.312),l(.098,-.182),l(-.311,-.071),l(-.534,-.363),l(-.016,-.415),l(-.777,.404),l(.103,.212),l(-.349,.432),l(-.275,.16),l(-.629,-.168),l(-.627,.204),l(-.599,-.062),l(-.102,-.424),l(-.312,-.806),l(-.616,.147),l(-.854,.668),l(-.369,-.111),l(.238,-.226),l(.013,-.322),l(-.08,-.137),l(.089,-.294),l(.718,-.418),l(-.038,-.315),l(.575,-.24),l(.012,-.076),l(.528,-.494),l(.173,-.035),l(-.116,-.089),l(-.153,-.028),l(.221,-.302),l(.446,.007),l(-.005,.096),l(.473,.007),l(.385,-.309),l(.271,.089),l(.272,-.117),l(.271,.096),l(.567,-.158),l(.278,.11),l(.354,-.021),l(-.179,-.199),l(.709,-.199),l(.017,.151),l(.199,-.014),l(.149,.089),l(.852,.007),l(.664,.261), +N(421.394,104.558),l(.104,.175),l(.04,.256),l(-.06,.475),l(.118,.054),l(.062,.333),l(-.076,.795),l(-.211,.327),l(-.118,.724),l(-.292,.501),l(-.298,-.043),l(-.057,-.196),l(-.41,-.076),l(-.227,-.152),l(.284,-.207),l(-.07,-.076),l(-.437,-.098),l(.257,-.332),l(-.11,-.071),l(-.291,.071),l(-.053,-.147),l(.115,-.022),l(.175,-.158),l(-.094,-.153),l(-.257,-.082),l(.015,-.164),l(.247,-.12),l(-.284,-.218),l(.241,-.284),l(.6,-.305),l(.27,-.022),l(.04,-.125),l(.292,-.043),l(.195,.104),l(.096,-.142),l(-.022,-.344),l(.072,-.224),l(.143,-.011),M(396.323,103.853),l(.375,-.122),l(.411,-.365),l(.549,-2.299),l(.397,-.091),l(-.21,-.29),l(-.226,.259),l(.125,-1.144),l(.223,-.826),l(.115,.153),l(.496,.306),l(.191,.382),l(.191,.229),l(-.281,-.673),l(-.63,-.582),l(-.242,-.233),l(.024,-.249),l(.359,-.477),l(-.202,-.375),l(-.2,-.274),l(-.326,-.216),l(-.685,-.1),l(-.515,-.571),l(-.416,-.323),l(.278,-.426),l(-.233,-.181),l(-.343,-.131),l(-.511,-.142),l(-.184,-.173),l(.247,-.376),l(-.329,-.173),l(-.509,.179),l(-.489,-.249),l(-.824,-.251),l(-.619,-.181),l(-.325,.014),l(-.215,-.25),l(-.91,.167),l(-.059,-.25),l(-.265,-.125),l(-.367,-.042),l(-.056,-.104),l(.861,-.083),l(-.085,-.229),l(-.526,-.104),l(.442,-.104),l(.086,-.205),l(-.275,.017),l(-.263,-.021),l(-.417,.083),l(.04,-.438),l(.303,.012),l(.305,-.146),l(.526,-.088),l(.562,-.174),l(.215,.188),l(.18,-.167),l(.474,.063),l(.112,-.26),l(.272,-.059),l(.764,-.078),l(.393,.366),l(.275,.26),l(.342,.083),l(.652,-.271),l(.317,.167),l(.276,-.127),l(.457,-.124),l(.029,.23),l(.591,-.065),l(.3,-.103),l(-.265,-.188),l(-.028,-.251),l(.056,-.345),l(-.037,-.428),l(-.131,.021),l(-.562,-.682),l(-.11,-.407),l(.927,.126),l(.607,-.105),l(-.084,.397),l(.248,.419),l(.342,-.146),l(1.241,.104),l(.501,.146),l(.079,-.014),l(.525,-.093),l(.662,-.27),l(-.534,-.124),l(.055,-.204),l(.166,-.175),l(.753,-.322),l(.756,-.181),l(.902,-.215),l(.314,-.235),l(.302,-.264),l(-.053,-.775),l(.135,-.542),l(.521,-.25),l(.46,-.16),l(.916,-.092),l(.177,-.096),l(.208,.447),l(.311,.335),l(.266,.127),l(.141,-.071),l(.41,-.208),l(.153,.17),l(.202,.458),l(.194,.133),l(.518,-.012),l(.159,.301),l(.259,-.012),l(.576,.048),l(.375,.168),l(-.159,.241),l(.091,.175),l(-.072,.198),l(.285,.122),l(.406,-.075),l(.446,-.035),l(.193,-.313),l(.245,-.072),l(-.119,.373),l(.146,.18),l(-.039,.228),l(.529,.048),l(.341,.192),l(.371,.204),l(.127,.228),l(.694,-.174),l(.079,.114),l(.642,.063),l(.568,.011),l(.145,.063),l(.428,.319),l(.337,.277),l(.395,-.055),l(.045,.145),l(.689,-.062),l(.072,-.048),l(.233,.007),l(.095,.186),l(.456,.09),l(.479,-.014),l(.605,.193),l(-.954,.806),l(-.054,.213),l(-.054,.358),l(-.321,.372),l(-.075,.295),l(.091,.076),l(-.216,.701),l(.135,.233),l(-.385,.309),l(-.473,-.007),l(.005,-.096),L(415.96,94.5),l(-.221,.302),l(.153,.028),l(.116,.089),l(-.173,.035),l(-.528,.494),l(-.012,.076),l(-.575,.24),l(.038,.315),l(-.718,.418),l(-.089,.294),l(.08,.137),l(-.013,.322),l(-.238,.226),l(.369,.111),l(.854,-.668),l(.616,-.147),l(.312,.806),l(.102,.424),l(-.624,.301),l(.532,.344),l(.025,.292),l(.43,.192),l(-.199,.272),l(-.541,.353),l(-.183,-.111),l(-.437,.186),l(.352,.358),l(.616,.191),l(.135,.331),l(-.175,.01),l(-.315,.371),l(.193,.442),l(.754,.391),l(.849,-.07),l(.062,.281),l(-.146,.469),l(-.346,.23),l(-.221,.215),l(-.833,.488),l(-.889,.659),l(-.427,.087),l(-.318,.043),l(-.798,.159),l(-.405,-.028),l(-.471,-.156),l(-.851,-.499),l(-.315,-.085),l(-.354,.029),l(-.231,.072),l(-.511,-.056),l(-.752,-.313),l(-.602,.044),l(-.731,.345),l(-.357,.258),l(-.555,.559),l(-.147,.386),l(.099,.514),l(.091,.379),l(-.334,-.091),l(-.75,.137),l(-.039,.136),l(-.485,-.015),l(-.427,-.197),l(-.395,.167),l(-.261,-.015),l(-.036,-.152),l(-.335,-.091),l(-.206,.03),l(-.374,.076),l(-.187,-.076),l(-.035,-.289),l(-.091,-.213),l(-1.252,-.304),l(-.355,0),l(.017,.319),l(-.542,-.015),l(-.337,.061),l(-.037,-.122),l(-.767,.03),l(-.084,-.114),l(-.028,-.038),l(-.431,-.152),l(-.131,.076),l(-.262,-.03),l(-.056,.076),l(-.507,-.395),l(-.15,.061),l(-1.088,-.334),l(-.112,.106),l(-.15,-.03),l(-.094,-.106),l(.205,-.243),l(-.058,-.122),l(-.469,.03),l(-.472,-.243), 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+E(0,0) +}; + +#undef N +#undef M +#undef L +#undef l +#undef E diff --git a/local/recipes/libs/cairo/source/perf/micro/zrusin-another.h b/local/recipes/libs/cairo/source/perf/micro/zrusin-another.h new file mode 100644 index 0000000000..f6e72aed4c --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/zrusin-another.h @@ -0,0 +1,668 @@ +/* The data in this file was created by Zack Rusin and downloaded from: + + http://ktown.kde.org/~zrusin/examples/cairorender.tar.bz2 + + It is included in the cairo performance test suite by his + permission, (given in email to Carl Worth on 2006-10-23) +*/ +point_t zrusin_another[] = { +{107.893088734820,103.841923410053}, {106.908713734820,104.920048410053}, +{106.605078419636,105.201721390261}, {102.286079757931,107.612435141518}, +{95.848592904540,109.855345077872}, {95.820873452616,109.863161445001}, +{90.517184462013,111.170008329713}, {87.125000000000,111.625000000000}, +{82.393245921775,111.316572641568}, 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{386.493443824758,59.714265008269}, +{389.655589204675,56.723426531041}, {392.798881617336,54.841378264602}, +{395.843750000000,54.187500000000}, {397.450962195204,54.513260839740}, +{398.968434987734,55.403189404250}, {401.353548073644,58.351425979321}, +{402.406250000000,59.781250000000}, {404.776707744919,58.931315323480}, +{404.782327289528,58.928064874395}, {408.035404872648,57.459065914536}, +{411.906349970010,56.394239853049}, {409.906250000000,58.843750000000}, +{107.893088734820, 103.841923410053} +}; diff --git a/local/recipes/libs/cairo/source/perf/micro/zrusin.c b/local/recipes/libs/cairo/source/perf/micro/zrusin.c new file mode 100644 index 0000000000..3dee74d23e --- /dev/null +++ b/local/recipes/libs/cairo/source/perf/micro/zrusin.c @@ -0,0 +1,97 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-perf.h" + +typedef struct { + double x; + double y; +} point_t; + +#include "zrusin-another.h" + +static void +zrusin_another_path (cairo_t *cr) +{ + unsigned int i; + + for (i=0; i < ARRAY_LENGTH (zrusin_another); i++) + cairo_line_to (cr, zrusin_another[i].x, zrusin_another[i].y); +} + +static cairo_time_t +zrusin_another_tessellate (cairo_t *cr, int width, int height, int loops) +{ + zrusin_another_path (cr); + + cairo_perf_timer_start (); + + /* We'd like to measure just tessellation without + * rasterization. For now, we can do that with cairo_in_fill. But + * we'll have to be careful since cairo_in_fill might eventually + * be optimized to have an implementation that doesn't necessarily + * include tessellation. */ + while (loops--) + cairo_in_fill (cr, 50, 50); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +static cairo_time_t +zrusin_another_fill (cairo_t *cr, int width, int height, int loops) +{ + zrusin_another_path (cr); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.8); /* blue */ + + cairo_perf_timer_start (); + + while (loops--) + cairo_fill_preserve (cr); + + cairo_perf_timer_stop (); + + cairo_new_path (cr); + + return cairo_perf_timer_elapsed (); +} + +cairo_bool_t +zrusin_enabled (cairo_perf_t *perf) +{ + return cairo_perf_can_run (perf, "zrusin", NULL); +} + +void +zrusin (cairo_perf_t *perf, cairo_t *cr, int width, int height) +{ + + cairo_perf_run (perf, "zrusin-another-tessellate", zrusin_another_tessellate, NULL); + cairo_perf_run (perf, "zrusin-another-fill", zrusin_another_fill, NULL); +} diff --git a/local/recipes/libs/cairo/source/src/.gitignore b/local/recipes/libs/cairo/source/src/.gitignore new file mode 100644 index 0000000000..32fb7333e8 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/.gitignore @@ -0,0 +1,38 @@ +.deps +.libs +Makefile +Makefile.in +Makefile.am.features +#Makefile.win32.features +*.gcda +*.gcno +*.la +*.lo +*.loT +*.pc +cairo-features.h +cairo-supported-features.h +cairo.def +*.i +*.s +*.o +*.obj +*.pdb +*.dll +*.manifest +*.ilk +*.exp +*.lib +*.trs +*~ +.*.sw? +TAGS +tags +check-has-hidden-symbols.i +check-link +check-skiplist +headers-standalone +!cairo.pc.in +!cairo-uninstalled.pc.in +!cairo-features.pc.in +!cairo-features-uninstalled.pc.in diff --git a/local/recipes/libs/cairo/source/src/README b/local/recipes/libs/cairo/source/src/README new file mode 100644 index 0000000000..03e4455ea5 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/README @@ -0,0 +1,69 @@ +Cairo Library Source Code +========================= + +This directory contains the source code of the cairo library. + + +Source Code Listing +------------------- + +The canonical list of source files is the file Makefile.sources. See that +file for how it works. + + +New Backends +------------ + +The rule of the thumb for adding new backends is to see how other +backends are integrated. Pick one of the simpler, unsupported, backends +and search the entire tree for it, and go from there. + +To add new backends you need to basically: + + * Modify $(top_srcdir)/configure.in to add checks for your backend. + + * Modify Makefile.sources to add source files for your backend, + + * Modify $(top_srcdir)/boilerplate/ to add boilerplate code for + testing your new backend. + + +New API +------- + +After adding new API, run "make check" in this directory and fix any +reported issues. Also add new API to the right location in +$(top_srcdir)/doc/public/cairo-sections.txt and run "make check" +in $(top_builddir)/doc/public to make sure that any newly added +documentation is correctly hooked up. + +Do not forget to add tests for the new API. See next section. + + +Tests +----- + +There are some tests in this directory that check the source code and +the build for various issues. The tests are very quick to run, and +particularly should be run after any documentation or API changes. It +does not hurt to run them after any source modification either. Run +them simply by calling: + + make check + +There are also extensive regression tests in $(top_srcdir)/test. It is +a good idea to run that test suite for any changes made to the source +code. Moreover, for any new feature, API, or bug fix, new tests should +be added to the regression test suite to test the new code. + + +Bibliography +------------ + +A detailed list of academic publications used in cairo code is available +in the file $(top_srcdir)/BIBLIOGRAPHY. Feel free to update as you +implement more papers. + +For more technical publications (eg. Adobe technical reports) just +point them out in a comment in the header of the file implementing them. + diff --git a/local/recipes/libs/cairo/source/src/cairo-analysis-surface-private.h b/local/recipes/libs/cairo/source/src/cairo-analysis-surface-private.h new file mode 100644 index 0000000000..6489cceb86 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-analysis-surface-private.h @@ -0,0 +1,87 @@ +/* + * Copyright © 2005 Keith Packard + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Keith Packard + * + * Contributor(s): + * Keith Packard + */ + +#ifndef CAIRO_ANALYSIS_SURFACE_H +#define CAIRO_ANALYSIS_SURFACE_H + +#include "cairoint.h" + +cairo_private cairo_surface_t * +_cairo_analysis_surface_create (cairo_surface_t *target, + cairo_bool_t create_region_ids); + +cairo_private void +_cairo_analysis_surface_set_ctm (cairo_surface_t *surface, + const cairo_matrix_t *ctm); + +cairo_private void +_cairo_analysis_surface_get_ctm (cairo_surface_t *surface, + cairo_matrix_t *ctm); + +cairo_private cairo_region_t * +_cairo_analysis_surface_get_supported (cairo_surface_t *surface); + +cairo_private cairo_region_t * +_cairo_analysis_surface_get_unsupported (cairo_surface_t *surface); + +cairo_private cairo_bool_t +_cairo_analysis_surface_has_supported (cairo_surface_t *surface); + +cairo_private cairo_bool_t +_cairo_analysis_surface_has_unsupported (cairo_surface_t *surface); + +cairo_private void +_cairo_analysis_surface_get_bounding_box (cairo_surface_t *surface, + cairo_box_t *bbox); + +cairo_private unsigned int +_cairo_analysis_surface_get_source_region_id (cairo_surface_t *surface); + +cairo_private unsigned int +_cairo_analysis_surface_get_mask_region_id (cairo_surface_t *surface); + +cairo_private cairo_int_status_t +_cairo_analysis_surface_merge_status (cairo_int_status_t status_a, + cairo_int_status_t status_b); + +cairo_private cairo_surface_t * +_cairo_null_surface_create (cairo_content_t content); + +static inline cairo_bool_t +_cairo_surface_is_analysis (const cairo_surface_t *surface) +{ + return (cairo_internal_surface_type_t)surface->backend->type == CAIRO_INTERNAL_SURFACE_TYPE_ANALYSIS; +} + +#endif /* CAIRO_ANALYSIS_SURFACE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-analysis-surface.c b/local/recipes/libs/cairo/source/src/cairo-analysis-surface.c new file mode 100644 index 0000000000..f6099c41b2 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-analysis-surface.c @@ -0,0 +1,1228 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* + * Copyright © 2006 Keith Packard + * Copyright © 2007 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Keith Packard + * + * Contributor(s): + * Keith Packard + * Adrian Johnson + */ + +#include "cairoint.h" + +#include "cairo-analysis-surface-private.h" +#include "cairo-box-inline.h" +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-paginated-private.h" +#include "cairo-recording-surface-inline.h" +#include "cairo-surface-snapshot-inline.h" +#include "cairo-surface-subsurface-inline.h" +#include "cairo-region-private.h" + +typedef struct { + cairo_surface_t base; + + cairo_surface_t *target; + + cairo_bool_t first_op; + cairo_bool_t has_supported; + cairo_bool_t has_unsupported; + + cairo_region_t supported_region; + cairo_region_t fallback_region; + cairo_box_t page_bbox; + + cairo_bool_t create_region_ids; + unsigned source_region_id; + unsigned mask_region_id; + + cairo_bool_t has_ctm; + cairo_matrix_t ctm; + +} cairo_analysis_surface_t; + +cairo_int_status_t +_cairo_analysis_surface_merge_status (cairo_int_status_t status_a, + cairo_int_status_t status_b) +{ + /* fatal errors should be checked and propagated at source */ + assert (! _cairo_int_status_is_error (status_a)); + assert (! _cairo_int_status_is_error (status_b)); + + /* return the most important status */ + if (status_a == CAIRO_INT_STATUS_UNSUPPORTED || + status_b == CAIRO_INT_STATUS_UNSUPPORTED) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (status_a == CAIRO_INT_STATUS_IMAGE_FALLBACK || + status_b == CAIRO_INT_STATUS_IMAGE_FALLBACK) + return CAIRO_INT_STATUS_IMAGE_FALLBACK; + + if (status_a == CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN || + status_b == CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN) + return CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN; + + if (status_a == CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY || + status_b == CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY) + return CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY; + + /* at this point we have checked all the valid internal codes, so... */ + assert (status_a == CAIRO_INT_STATUS_SUCCESS && + status_b == CAIRO_INT_STATUS_SUCCESS); + + return CAIRO_INT_STATUS_SUCCESS; +} + +struct proxy { + cairo_surface_t base; + cairo_surface_t *target; +}; + +static cairo_status_t +proxy_finish (void *abstract_surface) +{ + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_surface_backend_t proxy_backend = { + CAIRO_INTERNAL_SURFACE_TYPE_NULL, + proxy_finish, +}; + +static cairo_surface_t * +attach_proxy (cairo_surface_t *source, + cairo_surface_t *target) +{ + struct proxy *proxy; + + proxy = _cairo_calloc (sizeof (*proxy)); + if (unlikely (proxy == NULL)) + return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_surface_init (&proxy->base, &proxy_backend, NULL, target->content, target->is_vector); + + proxy->target = target; + _cairo_surface_attach_snapshot (source, &proxy->base, NULL); + + return &proxy->base; +} + +static void +detach_proxy (cairo_surface_t *proxy) +{ + cairo_surface_finish (proxy); + cairo_surface_destroy (proxy); +} + +static cairo_int_status_t +_add_operation (cairo_analysis_surface_t *surface, + cairo_rectangle_int_t *rect, + cairo_int_status_t backend_status) +{ + cairo_int_status_t status; + cairo_box_t bbox; + + if (rect->width == 0 || rect->height == 0) { + /* Even though the operation is not visible we must be careful + * to not allow unsupported operations to be replayed to the + * backend during CAIRO_PAGINATED_MODE_RENDER */ + if (backend_status == CAIRO_INT_STATUS_SUCCESS || + backend_status == CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY || + backend_status == CAIRO_INT_STATUS_NOTHING_TO_DO) + { + return CAIRO_INT_STATUS_SUCCESS; + } + else + { + return CAIRO_INT_STATUS_IMAGE_FALLBACK; + } + } + + _cairo_box_from_rectangle (&bbox, rect); + + if (surface->has_ctm) { + int tx, ty; + + if (_cairo_matrix_is_integer_translation (&surface->ctm, &tx, &ty)) { + rect->x += tx; + rect->y += ty; + + tx = _cairo_fixed_from_int (tx); + bbox.p1.x += tx; + bbox.p2.x += tx; + + ty = _cairo_fixed_from_int (ty); + bbox.p1.y += ty; + bbox.p2.y += ty; + } else { + _cairo_matrix_transform_bounding_box_fixed (&surface->ctm, + &bbox, NULL); + + if (bbox.p1.x == bbox.p2.x || bbox.p1.y == bbox.p2.y) { + /* Even though the operation is not visible we must be + * careful to not allow unsupported operations to be + * replayed to the backend during + * CAIRO_PAGINATED_MODE_RENDER */ + if (backend_status == CAIRO_INT_STATUS_SUCCESS || + backend_status == CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY || + backend_status == CAIRO_INT_STATUS_NOTHING_TO_DO) + { + return CAIRO_INT_STATUS_SUCCESS; + } + else + { + return CAIRO_INT_STATUS_IMAGE_FALLBACK; + } + } + + _cairo_box_round_to_rectangle (&bbox, rect); + } + } + + if (surface->first_op) { + surface->first_op = FALSE; + surface->page_bbox = bbox; + } else + _cairo_box_add_box(&surface->page_bbox, &bbox); + + /* If the operation is completely enclosed within the fallback + * region there is no benefit in emitting a native operation as + * the fallback image will be painted on top. + */ + if (cairo_region_contains_rectangle (&surface->fallback_region, rect) == CAIRO_REGION_OVERLAP_IN) + return CAIRO_INT_STATUS_IMAGE_FALLBACK; + + if (backend_status == CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY) { + /* A status of CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY indicates + * that the backend only supports this operation if the + * transparency removed. If the extents of this operation does + * not intersect any other native operation, the operation is + * natively supported and the backend will blend the + * transparency into the white background. + */ + if (cairo_region_contains_rectangle (&surface->supported_region, rect) == CAIRO_REGION_OVERLAP_OUT) + backend_status = CAIRO_INT_STATUS_SUCCESS; + } + + if (backend_status == CAIRO_INT_STATUS_SUCCESS) { + /* Add the operation to the supported region. Operations in + * this region will be emitted as native operations. + */ + surface->has_supported = TRUE; + return cairo_region_union_rectangle (&surface->supported_region, rect); + } + + /* Add the operation to the unsupported region. This region will + * be painted as an image after all native operations have been + * emitted. + */ + surface->has_unsupported = TRUE; + status = cairo_region_union_rectangle (&surface->fallback_region, rect); + + /* The status CAIRO_INT_STATUS_IMAGE_FALLBACK is used to indicate + * unsupported operations to the recording surface as using + * CAIRO_INT_STATUS_UNSUPPORTED would cause cairo-surface to + * invoke the cairo-surface-fallback path then return + * CAIRO_STATUS_SUCCESS. + */ + if (status == CAIRO_INT_STATUS_SUCCESS) + return CAIRO_INT_STATUS_IMAGE_FALLBACK; + else + return status; +} + +static cairo_int_status_t +_analyze_recording_surface_pattern (cairo_analysis_surface_t *surface, + const cairo_pattern_t *pattern, + cairo_rectangle_int_t *extents, + unsigned int *regions_id, + cairo_analysis_source_t source_type) +{ + const cairo_surface_pattern_t *surface_pattern; + cairo_analysis_surface_t *tmp; + cairo_surface_t *source, *proxy; + cairo_matrix_t p2d; + cairo_int_status_t status; + cairo_int_status_t analysis_status = CAIRO_INT_STATUS_SUCCESS; + cairo_bool_t surface_is_unbounded; + cairo_bool_t unused; + cairo_bool_t replay_all; + + assert (pattern->type == CAIRO_PATTERN_TYPE_SURFACE); + surface_pattern = (const cairo_surface_pattern_t *) pattern; + assert (surface_pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING); + source = surface_pattern->surface; + + proxy = _cairo_surface_has_snapshot (source, &proxy_backend); + if (proxy != NULL) { + /* nothing untoward found so far */ + return CAIRO_STATUS_SUCCESS; + } + + tmp = (cairo_analysis_surface_t *) + _cairo_analysis_surface_create (surface->target, surface->create_region_ids); + if (unlikely (tmp->base.status)) { + status = tmp->base.status; + goto cleanup1; + } + proxy = attach_proxy (source, &tmp->base); + + p2d = pattern->matrix; + status = cairo_matrix_invert (&p2d); + assert (status == CAIRO_INT_STATUS_SUCCESS); + _cairo_analysis_surface_set_ctm (&tmp->base, &p2d); + + source = _cairo_surface_get_source (source, NULL); + surface_is_unbounded = (pattern->extend == CAIRO_EXTEND_REPEAT + || pattern->extend == CAIRO_EXTEND_REFLECT); + + if (surface->create_region_ids) { + status = _cairo_recording_surface_region_array_attach (source, regions_id); + if (unlikely (status)) + goto cleanup2; + } + + replay_all = FALSE; + if (surface->target->backend->analyze_recording_surface) { + status = surface->target->backend->analyze_recording_surface ( + surface->target, + surface_pattern, + surface->create_region_ids ? *regions_id : 0, + source_type, + TRUE); + if (status == CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN) { + /* Ensure all commands are replayed even if previously + * replayed and assigned to a region.*/ + replay_all = TRUE; + status = CAIRO_INT_STATUS_SUCCESS; + } + if (unlikely (status)) + goto cleanup3; + } + + if (surface->create_region_ids) { + status = _cairo_recording_surface_replay_and_create_regions (source, + *regions_id, + &pattern->matrix, + &tmp->base, + surface_is_unbounded, + replay_all); + if (unlikely (status)) + goto cleanup3; + } else { + status = _cairo_recording_surface_replay_with_transform (source, + &pattern->matrix, + &tmp->base, + surface_is_unbounded, + replay_all); + if (unlikely (status)) + goto cleanup3; + } + + if (surface->target->backend->analyze_recording_surface) { + status = surface->target->backend->analyze_recording_surface ( + surface->target, + surface_pattern, + surface->create_region_ids ? *regions_id : 0, + source_type, + FALSE); + if (unlikely (status)) + goto cleanup3; + } + + /* black background or mime data fills entire extents */ + if (!(source->content & CAIRO_CONTENT_ALPHA) || _cairo_surface_has_mime_image (source)) { + cairo_rectangle_int_t rect; + + if (_cairo_surface_get_extents (source, &rect)) { + cairo_box_t bbox; + + _cairo_box_from_rectangle (&bbox, &rect); + _cairo_matrix_transform_bounding_box_fixed (&p2d, &bbox, NULL); + _cairo_box_round_to_rectangle (&bbox, &rect); + status = _add_operation (tmp, &rect, CAIRO_INT_STATUS_SUCCESS); + if (status == CAIRO_INT_STATUS_IMAGE_FALLBACK) + status = CAIRO_INT_STATUS_SUCCESS; + if (unlikely (status)) + goto cleanup3; + } + } + + if (tmp->has_supported) { + surface->has_supported = TRUE; + unused = cairo_region_union (&surface->supported_region, &tmp->supported_region); + } + + if (tmp->has_unsupported) { + surface->has_unsupported = TRUE; + unused = cairo_region_union (&surface->fallback_region, &tmp->fallback_region); + } + + analysis_status = tmp->has_unsupported ? CAIRO_INT_STATUS_IMAGE_FALLBACK : CAIRO_INT_STATUS_SUCCESS; + if (pattern->extend != CAIRO_EXTEND_NONE) { + _cairo_unbounded_rectangle_init (extents); + } else { + status = cairo_matrix_invert (&tmp->ctm); + _cairo_matrix_transform_bounding_box_fixed (&tmp->ctm, + &tmp->page_bbox, NULL); + _cairo_box_round_to_rectangle (&tmp->page_bbox, extents); + } + + cleanup3: + if (surface->create_region_ids && unlikely (status)) { + _cairo_recording_surface_region_array_remove (source, *regions_id); + } + cleanup2: + detach_proxy (proxy); + cleanup1: + cairo_surface_destroy (&tmp->base); + + if (unlikely (status)) + return status; + else + return analysis_status; +} + +static cairo_status_t +_cairo_analysis_surface_finish (void *abstract_surface) +{ + cairo_analysis_surface_t *surface = (cairo_analysis_surface_t *) abstract_surface; + + _cairo_region_fini (&surface->supported_region); + _cairo_region_fini (&surface->fallback_region); + + cairo_surface_destroy (surface->target); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_cairo_analysis_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle) +{ + cairo_analysis_surface_t *surface = abstract_surface; + + return _cairo_surface_get_extents (surface->target, rectangle); +} + +static void +_rectangle_intersect_clip (cairo_rectangle_int_t *extents, const cairo_clip_t *clip) +{ + if (clip != NULL) + _cairo_rectangle_intersect (extents, _cairo_clip_get_extents (clip)); +} + +static void +_cairo_analysis_surface_operation_extents (cairo_analysis_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip, + cairo_rectangle_int_t *extents) +{ + cairo_bool_t is_empty; + + is_empty = _cairo_surface_get_extents (&surface->base, extents); + + if (_cairo_operator_bounded_by_source (op)) { + cairo_rectangle_int_t source_extents; + + _cairo_pattern_get_extents (source, &source_extents, surface->target->is_vector); + _cairo_rectangle_intersect (extents, &source_extents); + } + + _rectangle_intersect_clip (extents, clip); +} + +static cairo_int_status_t +_cairo_analysis_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_analysis_surface_t *surface = abstract_surface; + cairo_int_status_t backend_status; + cairo_rectangle_int_t extents; + + surface->source_region_id = 0; + surface->mask_region_id = 0; + if (surface->target->backend->paint == NULL) { + backend_status = CAIRO_INT_STATUS_UNSUPPORTED; + } else { + backend_status = + surface->target->backend->paint (surface->target, + op, source, clip); + if (_cairo_int_status_is_error (backend_status)) + return backend_status; + } + + _cairo_analysis_surface_operation_extents (surface, + op, source, clip, + &extents); + if (backend_status == CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN) { + cairo_rectangle_int_t rec_extents; + backend_status = _analyze_recording_surface_pattern (surface, + source, + &rec_extents, + &surface->source_region_id, + CAIRO_ANALYSIS_SOURCE_PAINT); + _cairo_rectangle_intersect (&extents, &rec_extents); + } + + return _add_operation (surface, &extents, backend_status); +} + +static cairo_int_status_t +_cairo_analysis_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_analysis_surface_t *surface = abstract_surface; + cairo_int_status_t backend_status; + cairo_rectangle_int_t extents; + + surface->source_region_id = 0; + surface->mask_region_id = 0; + if (surface->target->backend->mask == NULL) { + backend_status = CAIRO_INT_STATUS_UNSUPPORTED; + } else { + backend_status = + surface->target->backend->mask (surface->target, + op, source, mask, clip); + if (_cairo_int_status_is_error (backend_status)) + return backend_status; + } + + _cairo_analysis_surface_operation_extents (surface, + op, source, clip, + &extents); + if (backend_status == CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN) { + cairo_int_status_t backend_source_status = CAIRO_STATUS_SUCCESS; + cairo_int_status_t backend_mask_status = CAIRO_STATUS_SUCCESS; + cairo_rectangle_int_t rec_extents; + + if (source->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_t *src_surface = ((cairo_surface_pattern_t *)source)->surface; + src_surface = _cairo_surface_get_source (src_surface, NULL); + if (_cairo_surface_is_recording (src_surface)) { + backend_source_status = + _analyze_recording_surface_pattern (surface, + source, + &rec_extents, + &surface->source_region_id, + CAIRO_ANALYSIS_SOURCE_MASK); + if (_cairo_int_status_is_error (backend_source_status)) + return backend_source_status; + + _cairo_rectangle_intersect (&extents, &rec_extents); + } + } + + if (mask->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_t *mask_surface = ((cairo_surface_pattern_t *)mask)->surface; + mask_surface = _cairo_surface_get_source (mask_surface, NULL); + if (_cairo_surface_is_recording (mask_surface)) { + backend_mask_status = + _analyze_recording_surface_pattern (surface, + mask, + &rec_extents, + &surface->mask_region_id, + CAIRO_ANALYSIS_MASK_MASK); + if (_cairo_int_status_is_error (backend_mask_status)) + return backend_mask_status; + + _cairo_rectangle_intersect (&extents, &rec_extents); + } + } + + backend_status = + _cairo_analysis_surface_merge_status (backend_source_status, + backend_mask_status); + } + + if (_cairo_operator_bounded_by_mask (op)) { + cairo_rectangle_int_t mask_extents; + + _cairo_pattern_get_extents (mask, &mask_extents, surface->target->is_vector); + _cairo_rectangle_intersect (&extents, &mask_extents); + } + + return _add_operation (surface, &extents, backend_status); +} + +static cairo_int_status_t +_cairo_analysis_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_analysis_surface_t *surface = abstract_surface; + cairo_int_status_t backend_status; + cairo_rectangle_int_t extents; + + surface->source_region_id = 0; + surface->mask_region_id = 0; + if (surface->target->backend->stroke == NULL) { + backend_status = CAIRO_INT_STATUS_UNSUPPORTED; + } else { + backend_status = + surface->target->backend->stroke (surface->target, op, + source, path, style, + ctm, ctm_inverse, + tolerance, antialias, + clip); + if (_cairo_int_status_is_error (backend_status)) + return backend_status; + } + + _cairo_analysis_surface_operation_extents (surface, + op, source, clip, + &extents); + if (backend_status == CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN) { + cairo_rectangle_int_t rec_extents; + backend_status = _analyze_recording_surface_pattern (surface, + source, + &rec_extents, + &surface->source_region_id, + CAIRO_ANALYSIS_SOURCE_STROKE); + _cairo_rectangle_intersect (&extents, &rec_extents); + } + + if (_cairo_operator_bounded_by_mask (op)) { + cairo_rectangle_int_t mask_extents; + cairo_int_status_t status; + + status = _cairo_path_fixed_stroke_extents (path, style, + ctm, ctm_inverse, + tolerance, + &mask_extents); + if (unlikely (status)) + return status; + + _cairo_rectangle_intersect (&extents, &mask_extents); + } + + return _add_operation (surface, &extents, backend_status); +} + +static cairo_int_status_t +_cairo_analysis_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_analysis_surface_t *surface = abstract_surface; + cairo_int_status_t backend_status; + cairo_rectangle_int_t extents; + + if (surface->target->backend->fill == NULL) { + backend_status = CAIRO_INT_STATUS_UNSUPPORTED; + } else { + backend_status = + surface->target->backend->fill (surface->target, op, + source, path, fill_rule, + tolerance, antialias, + clip); + if (_cairo_int_status_is_error (backend_status)) + return backend_status; + } + + _cairo_analysis_surface_operation_extents (surface, + op, source, clip, + &extents); + if (backend_status == CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN) { + cairo_rectangle_int_t rec_extents; + backend_status = _analyze_recording_surface_pattern (surface, + source, + &rec_extents, + &surface->source_region_id, + CAIRO_ANALYSIS_SOURCE_FILL); + _cairo_rectangle_intersect (&extents, &rec_extents); + } + + if (_cairo_operator_bounded_by_mask (op)) { + cairo_rectangle_int_t mask_extents; + + _cairo_path_fixed_fill_extents (path, fill_rule, tolerance, + &mask_extents); + + _cairo_rectangle_intersect (&extents, &mask_extents); + } + + return _add_operation (surface, &extents, backend_status); +} + +static cairo_int_status_t +_cairo_analysis_surface_show_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_analysis_surface_t *surface = abstract_surface; + cairo_int_status_t status, backend_status; + cairo_rectangle_int_t extents, glyph_extents; + + surface->source_region_id = 0; + surface->mask_region_id = 0; + + /* Adapted from _cairo_surface_show_glyphs */ + if (surface->target->backend->show_glyphs != NULL) { + backend_status = + surface->target->backend->show_glyphs (surface->target, op, + source, + glyphs, num_glyphs, + scaled_font, + clip); + if (_cairo_int_status_is_error (backend_status)) + return backend_status; + } + else if (surface->target->backend->show_text_glyphs != NULL) + { + backend_status = + surface->target->backend->show_text_glyphs (surface->target, op, + source, + NULL, 0, + glyphs, num_glyphs, + NULL, 0, + FALSE, + scaled_font, + clip); + if (_cairo_int_status_is_error (backend_status)) + return backend_status; + } + else + { + backend_status = CAIRO_INT_STATUS_UNSUPPORTED; + } + + _cairo_analysis_surface_operation_extents (surface, + op, source, clip, + &extents); + if (backend_status == CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN) { + cairo_rectangle_int_t rec_extents; + backend_status = _analyze_recording_surface_pattern (surface, + source, + &rec_extents, + &surface->source_region_id, + CAIRO_ANALYSIS_SOURCE_SHOW_GLYPHS); + _cairo_rectangle_intersect (&extents, &rec_extents); + } + + if (_cairo_operator_bounded_by_mask (op)) { + status = _cairo_scaled_font_glyph_device_extents (scaled_font, + glyphs, + num_glyphs, + &glyph_extents, + NULL); + if (unlikely (status)) + return status; + + _cairo_rectangle_intersect (&extents, &glyph_extents); + } + + return _add_operation (surface, &extents, backend_status); +} + +static cairo_bool_t +_cairo_analysis_surface_has_show_text_glyphs (void *abstract_surface) +{ + cairo_analysis_surface_t *surface = abstract_surface; + + return cairo_surface_has_show_text_glyphs (surface->target); +} + +static cairo_int_status_t +_cairo_analysis_surface_show_text_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const char *utf8, + int utf8_len, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_analysis_surface_t *surface = abstract_surface; + cairo_int_status_t status, backend_status; + cairo_rectangle_int_t extents, glyph_extents; + + surface->source_region_id = 0; + surface->mask_region_id = 0; + + /* Adapted from _cairo_surface_show_glyphs */ + backend_status = CAIRO_INT_STATUS_UNSUPPORTED; + if (surface->target->backend->show_text_glyphs != NULL) { + backend_status = + surface->target->backend->show_text_glyphs (surface->target, op, + source, + utf8, utf8_len, + glyphs, num_glyphs, + clusters, num_clusters, + cluster_flags, + scaled_font, + clip); + if (_cairo_int_status_is_error (backend_status)) + return backend_status; + } + if (backend_status == CAIRO_INT_STATUS_UNSUPPORTED && + surface->target->backend->show_glyphs != NULL) + { + backend_status = + surface->target->backend->show_glyphs (surface->target, op, + source, + glyphs, num_glyphs, + scaled_font, + clip); + if (_cairo_int_status_is_error (backend_status)) + return backend_status; + } + + _cairo_analysis_surface_operation_extents (surface, + op, source, clip, + &extents); + if (backend_status == CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN) { + cairo_rectangle_int_t rec_extents; + _analyze_recording_surface_pattern (surface, + source, + &rec_extents, + &surface->source_region_id, + CAIRO_ANALYSIS_SOURCE_SHOW_GLYPHS); + _cairo_rectangle_intersect (&extents, &rec_extents); + } + + if (_cairo_operator_bounded_by_mask (op)) { + status = _cairo_scaled_font_glyph_device_extents (scaled_font, + glyphs, + num_glyphs, + &glyph_extents, + NULL); + if (unlikely (status)) + return status; + + _cairo_rectangle_intersect (&extents, &glyph_extents); + } + + return _add_operation (surface, &extents, backend_status); +} + +static cairo_int_status_t +_cairo_analysis_surface_tag (void *abstract_surface, + cairo_bool_t begin, + const char *tag_name, + const char *attributes) +{ + cairo_analysis_surface_t *surface = abstract_surface; + cairo_int_status_t backend_status; + + surface->source_region_id = 0; + surface->mask_region_id = 0; + backend_status = CAIRO_INT_STATUS_SUCCESS; + if (surface->target->backend->tag != NULL) { + backend_status = + surface->target->backend->tag (surface->target, + begin, + tag_name, + attributes); + if (backend_status == CAIRO_INT_STATUS_SUCCESS) + surface->has_supported = TRUE; + } + + return backend_status; +} + +static cairo_bool_t +_cairo_analysis_surface_supports_color_glyph (void *abstract_surface, + cairo_scaled_font_t *scaled_font, + unsigned long glyph_index) +{ + return TRUE; +} + +static cairo_int_status_t +_cairo_analysis_surface_command_id (void *abstract_surface, + unsigned int recording_id, + unsigned int command_id) +{ + cairo_analysis_surface_t *surface = abstract_surface; + cairo_int_status_t backend_status; + + backend_status = CAIRO_INT_STATUS_SUCCESS; + if (surface->target->backend->command_id != NULL) { + backend_status = + surface->target->backend->command_id (surface->target, + recording_id, + command_id); + } + + return backend_status; +} + +static const cairo_surface_backend_t cairo_analysis_surface_backend = { + CAIRO_INTERNAL_SURFACE_TYPE_ANALYSIS, + + _cairo_analysis_surface_finish, + NULL, + + NULL, /* create_similar */ + NULL, /* create_similar_image */ + NULL, /* map_to_image */ + NULL, /* unmap */ + + NULL, /* source */ + NULL, /* acquire_source_image */ + NULL, /* release_source_image */ + NULL, /* snapshot */ + + NULL, /* copy_page */ + NULL, /* show_page */ + + _cairo_analysis_surface_get_extents, + NULL, /* get_font_options */ + + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + + _cairo_analysis_surface_paint, + _cairo_analysis_surface_mask, + _cairo_analysis_surface_stroke, + _cairo_analysis_surface_fill, + NULL, /* fill_stroke */ + _cairo_analysis_surface_show_glyphs, + _cairo_analysis_surface_has_show_text_glyphs, + _cairo_analysis_surface_show_text_glyphs, + NULL, /* get_supported_mime_types */ + _cairo_analysis_surface_tag, + _cairo_analysis_surface_supports_color_glyph, + NULL, /* analyze_recording_surface */ + _cairo_analysis_surface_command_id, +}; + +cairo_surface_t * +_cairo_analysis_surface_create (cairo_surface_t *target, + cairo_bool_t create_region_ids) +{ + cairo_analysis_surface_t *surface; + cairo_status_t status; + + status = target->status; + if (unlikely (status)) + return _cairo_surface_create_in_error (status); + + surface = _cairo_calloc (sizeof (cairo_analysis_surface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + /* I believe the content type here is truly arbitrary. I'm quite + * sure nothing will ever use this value. */ + _cairo_surface_init (&surface->base, + &cairo_analysis_surface_backend, + NULL, /* device */ + CAIRO_CONTENT_COLOR_ALPHA, + target->is_vector); + + cairo_matrix_init_identity (&surface->ctm); + surface->has_ctm = FALSE; + + surface->target = cairo_surface_reference (target); + surface->first_op = TRUE; + surface->has_supported = FALSE; + surface->has_unsupported = FALSE; + + surface->create_region_ids = create_region_ids; + surface->source_region_id = 0; + surface->mask_region_id = 0; + + _cairo_region_init (&surface->supported_region); + _cairo_region_init (&surface->fallback_region); + + surface->page_bbox.p1.x = 0; + surface->page_bbox.p1.y = 0; + surface->page_bbox.p2.x = 0; + surface->page_bbox.p2.y = 0; + + return &surface->base; +} + +void +_cairo_analysis_surface_set_ctm (cairo_surface_t *abstract_surface, + const cairo_matrix_t *ctm) +{ + cairo_analysis_surface_t *surface; + + if (abstract_surface->status) + return; + + surface = (cairo_analysis_surface_t *) abstract_surface; + + surface->ctm = *ctm; + surface->has_ctm = ! _cairo_matrix_is_identity (&surface->ctm); +} + +void +_cairo_analysis_surface_get_ctm (cairo_surface_t *abstract_surface, + cairo_matrix_t *ctm) +{ + cairo_analysis_surface_t *surface = (cairo_analysis_surface_t *) abstract_surface; + + *ctm = surface->ctm; +} + + +cairo_region_t * +_cairo_analysis_surface_get_supported (cairo_surface_t *abstract_surface) +{ + cairo_analysis_surface_t *surface = (cairo_analysis_surface_t *) abstract_surface; + + return &surface->supported_region; +} + +cairo_region_t * +_cairo_analysis_surface_get_unsupported (cairo_surface_t *abstract_surface) +{ + cairo_analysis_surface_t *surface = (cairo_analysis_surface_t *) abstract_surface; + + return &surface->fallback_region; +} + +cairo_bool_t +_cairo_analysis_surface_has_supported (cairo_surface_t *abstract_surface) +{ + cairo_analysis_surface_t *surface = (cairo_analysis_surface_t *) abstract_surface; + + return surface->has_supported; +} + +cairo_bool_t +_cairo_analysis_surface_has_unsupported (cairo_surface_t *abstract_surface) +{ + cairo_analysis_surface_t *surface = (cairo_analysis_surface_t *) abstract_surface; + + return surface->has_unsupported; +} + +void +_cairo_analysis_surface_get_bounding_box (cairo_surface_t *abstract_surface, + cairo_box_t *bbox) +{ + cairo_analysis_surface_t *surface = (cairo_analysis_surface_t *) abstract_surface; + + *bbox = surface->page_bbox; +} + +unsigned int +_cairo_analysis_surface_get_source_region_id (cairo_surface_t *abstract_surface) +{ + cairo_analysis_surface_t *surface = (cairo_analysis_surface_t *) abstract_surface; + + return surface->source_region_id; +} + +unsigned int +_cairo_analysis_surface_get_mask_region_id (cairo_surface_t *abstract_surface) +{ + cairo_analysis_surface_t *surface = (cairo_analysis_surface_t *) abstract_surface; + + return surface->mask_region_id; +} + + +/* null surface type: a surface that does nothing (has no side effects, yay!) */ + +static cairo_int_status_t +_paint_return_success (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + if (source->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) source; + if (surface_pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + return CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN; + } + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_mask_return_success (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + if (source->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) source; + if (surface_pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + return CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN; + } + + if (mask->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) mask; + if (surface_pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + return CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN; + } + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_stroke_return_success (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + if (source->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) source; + if (surface_pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + return CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN; + } + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_fill_return_success (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + if (source->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) source; + if (surface_pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + return CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN; + } + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_show_glyphs_return_success (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + if (source->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) source; + if (surface_pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + return CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN; + } + + return CAIRO_INT_STATUS_SUCCESS; +} + +static const cairo_surface_backend_t cairo_null_surface_backend = { + CAIRO_INTERNAL_SURFACE_TYPE_NULL, + NULL, /* finish */ + + NULL, /* only accessed through the surface functions */ + + NULL, /* create_similar */ + NULL, /* create similar image */ + NULL, /* map to image */ + NULL, /* unmap image*/ + + NULL, /* source */ + NULL, /* acquire_source_image */ + NULL, /* release_source_image */ + NULL, /* snapshot */ + + NULL, /* copy_page */ + NULL, /* show_page */ + + NULL, /* get_extents */ + NULL, /* get_font_options */ + + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + + _paint_return_success, /* paint */ + _mask_return_success, /* mask */ + _stroke_return_success, /* stroke */ + _fill_return_success, /* fill */ + NULL, /* fill_stroke */ + _show_glyphs_return_success, /* show_glyphs */ + NULL, /* has_show_text_glyphs */ + NULL, /* show_text_glyphs */ + NULL, /* get_supported_mime_types */ + NULL, /* tag */ + NULL, /* supports_color_glyph */ + NULL, /* analyze_recording_surface */ + NULL, /* command_id*/ +}; + +cairo_surface_t * +_cairo_null_surface_create (cairo_content_t content) +{ + cairo_surface_t *surface; + + surface = _cairo_calloc (sizeof (cairo_surface_t)); + if (unlikely (surface == NULL)) { + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + _cairo_surface_init (surface, + &cairo_null_surface_backend, + NULL, /* device */ + content, + TRUE); /* is_vector */ + + return surface; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-arc-private.h b/local/recipes/libs/cairo/source/src/cairo-arc-private.h new file mode 100644 index 0000000000..a22c01ac90 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-arc-private.h @@ -0,0 +1,61 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_ARC_PRIVATE_H +#define CAIRO_ARC_PRIVATE_H + +#include "cairoint.h" + +CAIRO_BEGIN_DECLS + +cairo_private void +_cairo_arc_path (cairo_t *cr, + double xc, + double yc, + double radius, + double angle1, + double angle2); + +cairo_private void +_cairo_arc_path_negative (cairo_t *cr, + double xc, + double yc, + double radius, + double angle1, + double angle2); + +CAIRO_END_DECLS + +#endif /* CAIRO_ARC_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-arc.c b/local/recipes/libs/cairo/source/src/cairo-arc.c new file mode 100644 index 0000000000..010b9c1a7a --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-arc.c @@ -0,0 +1,317 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" + +#include "cairo-arc-private.h" + +#define MAX_FULL_CIRCLES 65536 + +/* Spline deviation from the circle in radius would be given by: + + error = sqrt (x**2 + y**2) - 1 + + A simpler error function to work with is: + + e = x**2 + y**2 - 1 + + From "Good approximation of circles by curvature-continuous Bezier + curves", Tor Dokken and Morten Daehlen, Computer Aided Geometric + Design 8 (1990) 22-41, we learn: + + abs (max(e)) = 4/27 * sin**6(angle/4) / cos**2(angle/4) + + and + abs (error) =~ 1/2 * e + + Of course, this error value applies only for the particular spline + approximation that is used in _cairo_gstate_arc_segment. +*/ +static double +_arc_error_normalized (double angle) +{ + return 2.0/27.0 * pow (sin (angle / 4), 6) / pow (cos (angle / 4), 2); +} + +static double +_arc_max_angle_for_tolerance_normalized (double tolerance) +{ + double angle, error; + int i; + + /* Use table lookup to reduce search time in most cases. */ + struct { + double angle; + double error; + } table[] = { + { M_PI / 1.0, 0.0185185185185185036127 }, + { M_PI / 2.0, 0.000272567143730179811158 }, + { M_PI / 3.0, 2.38647043651461047433e-05 }, + { M_PI / 4.0, 4.2455377443222443279e-06 }, + { M_PI / 5.0, 1.11281001494389081528e-06 }, + { M_PI / 6.0, 3.72662000942734705475e-07 }, + { M_PI / 7.0, 1.47783685574284411325e-07 }, + { M_PI / 8.0, 6.63240432022601149057e-08 }, + { M_PI / 9.0, 3.2715520137536980553e-08 }, + { M_PI / 10.0, 1.73863223499021216974e-08 }, + { M_PI / 11.0, 9.81410988043554039085e-09 }, + }; + int table_size = ARRAY_LENGTH (table); + const int max_segments = 1000; /* this value is chosen arbitrarily. this gives an error of about 1.74909e-20 */ + + for (i = 0; i < table_size; i++) + if (table[i].error < tolerance) + return table[i].angle; + + ++i; + + do { + angle = M_PI / i++; + error = _arc_error_normalized (angle); + } while (error > tolerance && i < max_segments); + + return angle; +} + +static int +_arc_segments_needed (double angle, + double radius, + cairo_matrix_t *ctm, + double tolerance) +{ + double major_axis, max_angle; + + /* the error is amplified by at most the length of the + * major axis of the circle; see cairo-pen.c for a more detailed analysis + * of this. */ + major_axis = _cairo_matrix_transformed_circle_major_axis (ctm, radius); + max_angle = _arc_max_angle_for_tolerance_normalized (tolerance / major_axis); + + return ceil (fabs (angle) / max_angle); +} + +/* We want to draw a single spline approximating a circular arc radius + R from angle A to angle B. Since we want a symmetric spline that + matches the endpoints of the arc in position and slope, we know + that the spline control points must be: + + (R * cos(A), R * sin(A)) + (R * cos(A) - h * sin(A), R * sin(A) + h * cos (A)) + (R * cos(B) + h * sin(B), R * sin(B) - h * cos (B)) + (R * cos(B), R * sin(B)) + + for some value of h. + + "Approximation of circular arcs by cubic polynomials", Michael + Goldapp, Computer Aided Geometric Design 8 (1991) 227-238, provides + various values of h along with error analysis for each. + + From that paper, a very practical value of h is: + + h = 4/3 * R * tan(angle/4) + + This value does not give the spline with minimal error, but it does + provide a very good approximation, (6th-order convergence), and the + error expression is quite simple, (see the comment for + _arc_error_normalized). +*/ +static void +_cairo_arc_segment (cairo_t *cr, + double xc, + double yc, + double radius, + double angle_A, + double angle_B) +{ + double r_sin_A, r_cos_A; + double r_sin_B, r_cos_B; + double h; + + r_sin_A = radius * sin (angle_A); + r_cos_A = radius * cos (angle_A); + r_sin_B = radius * sin (angle_B); + r_cos_B = radius * cos (angle_B); + + h = 4.0/3.0 * tan ((angle_B - angle_A) / 4.0); + + cairo_curve_to (cr, + xc + r_cos_A - h * r_sin_A, + yc + r_sin_A + h * r_cos_A, + xc + r_cos_B + h * r_sin_B, + yc + r_sin_B - h * r_cos_B, + xc + r_cos_B, + yc + r_sin_B); +} + +static void +_cairo_arc_in_direction (cairo_t *cr, + double xc, + double yc, + double radius, + double angle_min, + double angle_max, + cairo_direction_t dir) +{ + if (cairo_status (cr)) + return; + + if (! ISFINITE (angle_max) || ! ISFINITE (angle_min)) + return; + + assert (angle_max >= angle_min); + + if (angle_max - angle_min > 2 * M_PI * MAX_FULL_CIRCLES) { + angle_max = fmod (angle_max - angle_min, 2 * M_PI); + angle_min = fmod (angle_min, 2 * M_PI); + angle_max += angle_min + 2 * M_PI * MAX_FULL_CIRCLES; + } + + /* Recurse if drawing arc larger than pi */ + if (angle_max - angle_min > M_PI) { + double angle_mid = angle_min + (angle_max - angle_min) / 2.0; + if (dir == CAIRO_DIRECTION_FORWARD) { + _cairo_arc_in_direction (cr, xc, yc, radius, + angle_min, angle_mid, + dir); + + _cairo_arc_in_direction (cr, xc, yc, radius, + angle_mid, angle_max, + dir); + } else { + _cairo_arc_in_direction (cr, xc, yc, radius, + angle_mid, angle_max, + dir); + + _cairo_arc_in_direction (cr, xc, yc, radius, + angle_min, angle_mid, + dir); + } + } else if (angle_max != angle_min) { + cairo_matrix_t ctm; + int i, segments; + double step; + + cairo_get_matrix (cr, &ctm); + segments = _arc_segments_needed (angle_max - angle_min, + radius, &ctm, + cairo_get_tolerance (cr)); + step = (angle_max - angle_min) / segments; + segments -= 1; + + if (dir == CAIRO_DIRECTION_REVERSE) { + double t; + + t = angle_min; + angle_min = angle_max; + angle_max = t; + + step = -step; + } + + cairo_line_to (cr, + xc + radius * cos (angle_min), + yc + radius * sin (angle_min)); + + for (i = 0; i < segments; i++, angle_min += step) { + _cairo_arc_segment (cr, xc, yc, radius, + angle_min, angle_min + step); + } + + _cairo_arc_segment (cr, xc, yc, radius, + angle_min, angle_max); + } else { + cairo_line_to (cr, + xc + radius * cos (angle_min), + yc + radius * sin (angle_min)); + } +} + +/** + * _cairo_arc_path: + * @cr: a cairo context + * @xc: X position of the center of the arc + * @yc: Y position of the center of the arc + * @radius: the radius of the arc + * @angle1: the start angle, in radians + * @angle2: the end angle, in radians + * + * Compute a path for the given arc and append it onto the current + * path within @cr. The arc will be accurate within the current + * tolerance and given the current transformation. + **/ +void +_cairo_arc_path (cairo_t *cr, + double xc, + double yc, + double radius, + double angle1, + double angle2) +{ + _cairo_arc_in_direction (cr, xc, yc, + radius, + angle1, angle2, + CAIRO_DIRECTION_FORWARD); +} + +/** + * _cairo_arc_path_negative: + * @xc: X position of the center of the arc + * @yc: Y position of the center of the arc + * @radius: the radius of the arc + * @angle1: the start angle, in radians + * @angle2: the end angle, in radians + * @ctm: the current transformation matrix + * @tolerance: the current tolerance value + * @path: the path onto which the arc will be appended + * + * Compute a path for the given arc (defined in the negative + * direction) and append it onto the current path within @cr. The arc + * will be accurate within the current tolerance and given the current + * transformation. + **/ +void +_cairo_arc_path_negative (cairo_t *cr, + double xc, + double yc, + double radius, + double angle1, + double angle2) +{ + _cairo_arc_in_direction (cr, xc, yc, + radius, + angle2, angle1, + CAIRO_DIRECTION_REVERSE); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-array-private.h b/local/recipes/libs/cairo/source/src/cairo-array-private.h new file mode 100644 index 0000000000..ff5b51f504 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-array-private.h @@ -0,0 +1,100 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_ARRAY_PRIVATE_H +#define CAIRO_ARRAY_PRIVATE_H + +#include "cairo-compiler-private.h" +#include "cairo-types-private.h" + +CAIRO_BEGIN_DECLS + +/* cairo-array.c structures and functions */ + +cairo_private void +_cairo_array_init (cairo_array_t *array, unsigned int element_size); + +cairo_private void +_cairo_array_fini (cairo_array_t *array); + +cairo_private cairo_status_t +_cairo_array_grow_by (cairo_array_t *array, unsigned int additional); + +cairo_private void +_cairo_array_truncate (cairo_array_t *array, unsigned int num_elements); + +cairo_private cairo_status_t +_cairo_array_append (cairo_array_t *array, const void *element); + +cairo_private cairo_status_t +_cairo_array_append_multiple (cairo_array_t *array, + const void *elements, + unsigned int num_elements); + +cairo_private cairo_status_t +_cairo_array_allocate (cairo_array_t *array, + unsigned int num_elements, + void **elements); + +cairo_private void * +_cairo_array_index (cairo_array_t *array, unsigned int index); + +cairo_private const void * +_cairo_array_index_const (const cairo_array_t *array, unsigned int index); + +cairo_private void +_cairo_array_copy_element (const cairo_array_t *array, unsigned int index, void *dst); + +cairo_private unsigned int +_cairo_array_num_elements (const cairo_array_t *array); + +cairo_private unsigned int +_cairo_array_size (const cairo_array_t *array); + +cairo_private void +_cairo_array_sort (const cairo_array_t *array, int (*compar)(const void *, const void *)); + +cairo_private cairo_bool_t +_cairo_array_pop_element (cairo_array_t *array, void *dst); + +cairo_private void * +_cairo_array_last_element (cairo_array_t *array); + +CAIRO_END_DECLS + +#endif /* CAIRO_ARRAY_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-array.c b/local/recipes/libs/cairo/source/src/cairo-array.c new file mode 100644 index 0000000000..a4a4f8c846 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-array.c @@ -0,0 +1,580 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Kristian Høgsberg + * Carl Worth + */ + +#include "cairoint.h" +#include "cairo-array-private.h" +#include "cairo-error-private.h" + +/*< private > + * _cairo_array_init: + * + * Initialize a new #cairo_array_t object to store objects each of size + * @element_size. + * + * The #cairo_array_t object provides grow-by-doubling storage. It + * never interprets the data passed to it, nor does it provide any + * sort of callback mechanism for freeing resources held onto by + * stored objects. + * + * When finished using the array, _cairo_array_fini() should be + * called to free resources allocated during use of the array. + **/ +void +_cairo_array_init (cairo_array_t *array, unsigned int element_size) +{ + array->size = 0; + array->num_elements = 0; + array->element_size = element_size; + array->elements = NULL; +} + +/*< private > + * _cairo_array_fini: + * @array: A #cairo_array_t + * + * Free all resources associated with @array. After this call, @array + * should not be used again without a subsequent call to + * _cairo_array_init() again first. + **/ +void +_cairo_array_fini (cairo_array_t *array) +{ + free (array->elements); +} + +/*< private > + * _cairo_array_grow_by: + * @array: a #cairo_array_t + * + * Increase the size of @array (if needed) so that there are at least + * @additional free spaces in the array. The actual size of the array + * is always increased by doubling as many times as necessary. + **/ +cairo_status_t +_cairo_array_grow_by (cairo_array_t *array, unsigned int additional) +{ + char *new_elements; + unsigned int old_size = array->size; + unsigned int required_size = array->num_elements + additional; + unsigned int new_size; + + /* check for integer overflow */ + if (required_size > INT_MAX || required_size < array->num_elements) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (CAIRO_INJECT_FAULT ()) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (required_size <= old_size) + return CAIRO_STATUS_SUCCESS; + + if (old_size == 0) + new_size = 1; + else + new_size = old_size * 2; + + while (new_size < required_size) + new_size = new_size * 2; + + array->size = new_size; + new_elements = _cairo_realloc_ab (array->elements, + array->size, array->element_size); + + if (unlikely (new_elements == NULL)) { + array->size = old_size; + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + array->elements = new_elements; + + return CAIRO_STATUS_SUCCESS; +} + +/*< private > + * _cairo_array_truncate: + * @array: a #cairo_array_t + * + * Truncate size of the array to @num_elements if less than the + * current size. No memory is actually freed. The stored objects + * beyond @num_elements are simply "forgotten". + **/ +void +_cairo_array_truncate (cairo_array_t *array, unsigned int num_elements) +{ + if (num_elements < array->num_elements) + array->num_elements = num_elements; +} + +/*< private > + * _cairo_array_index: + * @array: a #cairo_array_t + * + * If the resulting value is assigned to a pointer to an object of the same + * element_size as initially passed to _cairo_array_init() then that + * pointer may be used for further direct indexing with []. For + * example: + * + * |[ + * cairo_array_t array; + * double *values; + * + * _cairo_array_init (&array, sizeof(double)); + * ... calls to _cairo_array_append() here ... + * + * values = _cairo_array_index (&array, 0); + * for (i = 0; i < _cairo_array_num_elements (&array); i++) + * ... use values[i] here ... + * ]| + * + * Returns: A pointer to the object stored at @index. + **/ +void * +_cairo_array_index (cairo_array_t *array, unsigned int index) +{ + /* We allow an index of 0 for the no-elements case. + * This makes for cleaner calling code which will often look like: + * + * elements = _cairo_array_index (array, 0); + * for (i=0; i < num_elements; i++) { + * ... use elements[i] here ... + * } + * + * which in the num_elements==0 case gets the NULL pointer here, + * but never dereferences it. + */ + if (index == 0 && array->num_elements == 0) + return NULL; + + assert (index < array->num_elements); + + return array->elements + (size_t)index * array->element_size; +} + +/*< private > + * _cairo_array_index_const: + * @array: a #cairo_array_t + * + * If the resulting value is assigned to a pointer to an object of the same + * element_size as initially passed to _cairo_array_init() then that + * pointer may be used for further direct indexing with []. For + * example: + * + * |[), + * or implicitly using the toy text API by way of + * cairo_select_font_face(). The resulting face can be accessed using + * cairo_get_font_face(). + **/ + +/* #cairo_font_face_t */ + +const cairo_font_face_t _cairo_font_face_nil = { + { 0 }, /* hash_entry */ + CAIRO_STATUS_NO_MEMORY, /* status */ + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ + { 0, 0, 0, NULL }, /* user_data */ + NULL +}; +const cairo_font_face_t _cairo_font_face_nil_file_not_found = { + { 0 }, /* hash_entry */ + CAIRO_STATUS_FILE_NOT_FOUND, /* status */ + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ + { 0, 0, 0, NULL }, /* user_data */ + NULL +}; + +cairo_status_t +_cairo_font_face_set_error (cairo_font_face_t *font_face, + cairo_status_t status) +{ + if (status == CAIRO_STATUS_SUCCESS) + return status; + + /* Don't overwrite an existing error. This preserves the first + * error, which is the most significant. */ + _cairo_status_set_error (&font_face->status, status); + + return _cairo_error (status); +} + +void +_cairo_font_face_init (cairo_font_face_t *font_face, + const cairo_font_face_backend_t *backend) +{ + CAIRO_MUTEX_INITIALIZE (); + + font_face->status = CAIRO_STATUS_SUCCESS; + CAIRO_REFERENCE_COUNT_INIT (&font_face->ref_count, 1); + font_face->backend = backend; + + _cairo_user_data_array_init (&font_face->user_data); +} + +/** + * cairo_font_face_reference: + * @font_face: a #cairo_font_face_t, (may be %NULL in which case this + * function does nothing). + * + * Increases the reference count on @font_face by one. This prevents + * @font_face from being destroyed until a matching call to + * cairo_font_face_destroy() is made. + * + * Use cairo_font_face_get_reference_count() to get the number of + * references to a #cairo_font_face_t. + * + * Return value: the referenced #cairo_font_face_t. + * + * Since: 1.0 + **/ +cairo_font_face_t * +cairo_font_face_reference (cairo_font_face_t *font_face) +{ + if (font_face == NULL || + CAIRO_REFERENCE_COUNT_IS_INVALID (&font_face->ref_count)) + return font_face; + + /* We would normally assert that we have a reference here but we + * can't get away with that due to the zombie case as documented + * in _cairo_ft_font_face_destroy. */ + + _cairo_reference_count_inc (&font_face->ref_count); + + return font_face; +} + +static inline cairo_bool_t +__put(cairo_reference_count_t *v) +{ + int c, old; + + c = CAIRO_REFERENCE_COUNT_GET_VALUE(v); + while (c != 1 && (old = _cairo_atomic_int_cmpxchg_return_old(&v->ref_count, c, c - 1)) != c) + c = old; + + return c != 1; +} + +cairo_bool_t +_cairo_font_face_destroy (void *abstract_face) +{ +#if 0 /* Nothing needs to be done, we can just drop the last reference */ + cairo_font_face_t *font_face = abstract_face; + return _cairo_reference_count_dec_and_test (&font_face->ref_count); +#endif + return TRUE; +} + +/** + * cairo_font_face_destroy: + * @font_face: a #cairo_font_face_t + * + * Decreases the reference count on @font_face by one. If the result + * is zero, then @font_face and all associated resources are freed. + * See cairo_font_face_reference(). + * + * Since: 1.0 + **/ +void +cairo_font_face_destroy (cairo_font_face_t *font_face) +{ + if (font_face == NULL || + CAIRO_REFERENCE_COUNT_IS_INVALID (&font_face->ref_count)) + return; + + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&font_face->ref_count)); + + /* We allow resurrection to deal with some memory management for the + * FreeType backend where cairo_ft_font_face_t and cairo_ft_unscaled_font_t + * need to effectively mutually reference each other + */ + if (__put (&font_face->ref_count)) + return; + + if (! font_face->backend->destroy (font_face)) + return; + + _cairo_user_data_array_fini (&font_face->user_data); + + free (font_face); +} + +/** + * cairo_font_face_get_type: + * @font_face: a font face + * + * This function returns the type of the backend used to create + * a font face. See #cairo_font_type_t for available types. + * + * Return value: The type of @font_face. + * + * Since: 1.2 + **/ +cairo_font_type_t +cairo_font_face_get_type (cairo_font_face_t *font_face) +{ + if (CAIRO_REFERENCE_COUNT_IS_INVALID (&font_face->ref_count)) + return CAIRO_FONT_TYPE_TOY; + + return font_face->backend->type; +} + +/** + * cairo_font_face_get_reference_count: + * @font_face: a #cairo_font_face_t + * + * Returns the current reference count of @font_face. + * + * Return value: the current reference count of @font_face. If the + * object is a nil object, 0 will be returned. + * + * Since: 1.4 + **/ +unsigned int +cairo_font_face_get_reference_count (cairo_font_face_t *font_face) +{ + if (font_face == NULL || + CAIRO_REFERENCE_COUNT_IS_INVALID (&font_face->ref_count)) + return 0; + + return CAIRO_REFERENCE_COUNT_GET_VALUE (&font_face->ref_count); +} + +/** + * cairo_font_face_status: + * @font_face: a #cairo_font_face_t + * + * Checks whether an error has previously occurred for this + * font face + * + * Return value: %CAIRO_STATUS_SUCCESS or another error such as + * %CAIRO_STATUS_NO_MEMORY. + * + * Since: 1.0 + **/ +cairo_status_t +cairo_font_face_status (cairo_font_face_t *font_face) +{ + return font_face->status; +} + +/** + * cairo_font_face_get_user_data: + * @font_face: a #cairo_font_face_t + * @key: the address of the #cairo_user_data_key_t the user data was + * attached to + * + * Return user data previously attached to @font_face using the specified + * key. If no user data has been attached with the given key this + * function returns %NULL. + * + * Return value: the user data previously attached or %NULL. + * + * Since: 1.0 + **/ +void * +cairo_font_face_get_user_data (cairo_font_face_t *font_face, + const cairo_user_data_key_t *key) +{ + return _cairo_user_data_array_get_data (&font_face->user_data, + key); +} + +/** + * cairo_font_face_set_user_data: + * @font_face: a #cairo_font_face_t + * @key: the address of a #cairo_user_data_key_t to attach the user data to + * @user_data: the user data to attach to the font face + * @destroy: a #cairo_destroy_func_t which will be called when the + * font face is destroyed or when new user data is attached using the + * same key. + * + * Attach user data to @font_face. To remove user data from a font face, + * call this function with the key that was used to set it and %NULL + * for @data. + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY if a + * slot could not be allocated for the user data. + * + * Since: 1.0 + **/ +cairo_status_t +cairo_font_face_set_user_data (cairo_font_face_t *font_face, + const cairo_user_data_key_t *key, + void *user_data, + cairo_destroy_func_t destroy) +{ + if (CAIRO_REFERENCE_COUNT_IS_INVALID (&font_face->ref_count)) + return font_face->status; + + return _cairo_user_data_array_set_data (&font_face->user_data, + key, user_data, destroy); +} + +void +_cairo_unscaled_font_init (cairo_unscaled_font_t *unscaled_font, + const cairo_unscaled_font_backend_t *backend) +{ + CAIRO_REFERENCE_COUNT_INIT (&unscaled_font->ref_count, 1); + unscaled_font->backend = backend; +} + +cairo_unscaled_font_t * +_cairo_unscaled_font_reference (cairo_unscaled_font_t *unscaled_font) +{ + if (unscaled_font == NULL) + return NULL; + + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&unscaled_font->ref_count)); + + _cairo_reference_count_inc (&unscaled_font->ref_count); + + return unscaled_font; +} + +void +_cairo_unscaled_font_destroy (cairo_unscaled_font_t *unscaled_font) +{ + if (unscaled_font == NULL) + return; + + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&unscaled_font->ref_count)); + + if (__put (&unscaled_font->ref_count)) + return; + + if (! unscaled_font->backend->destroy (unscaled_font)) + return; + + free (unscaled_font); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-font-options.c b/local/recipes/libs/cairo/source/src/cairo-font-options.c new file mode 100644 index 0000000000..d5c6663be5 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-font-options.c @@ -0,0 +1,871 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Owen Taylor + */ + +#include "cairoint.h" +#include "cairo-error-private.h" + +/** + * SECTION:cairo-font-options + * @Title: cairo_font_options_t + * @Short_Description: How a font should be rendered + * @See_Also: #cairo_scaled_font_t + * + * The font options specify how fonts should be rendered. Most of the + * time the font options implied by a surface are just right and do not + * need any changes, but for pixel-based targets tweaking font options + * may result in superior output on a particular display. + **/ + +static const cairo_font_options_t _cairo_font_options_nil = { + CAIRO_ANTIALIAS_DEFAULT, + CAIRO_SUBPIXEL_ORDER_DEFAULT, + CAIRO_LCD_FILTER_DEFAULT, + CAIRO_HINT_STYLE_DEFAULT, + CAIRO_HINT_METRICS_DEFAULT, + CAIRO_ROUND_GLYPH_POS_DEFAULT, + NULL, /* variations */ + CAIRO_COLOR_MODE_DEFAULT, + CAIRO_COLOR_PALETTE_DEFAULT, + NULL, 0, /* custom palette */ +}; + +/** + * _cairo_font_options_init_default: + * @options: a #cairo_font_options_t + * + * Initializes all fields of the font options object to default values. + **/ +void +_cairo_font_options_init_default (cairo_font_options_t *options) +{ + options->antialias = CAIRO_ANTIALIAS_DEFAULT; + options->subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT; + options->lcd_filter = CAIRO_LCD_FILTER_DEFAULT; + options->hint_style = CAIRO_HINT_STYLE_DEFAULT; + options->hint_metrics = CAIRO_HINT_METRICS_DEFAULT; + options->round_glyph_positions = CAIRO_ROUND_GLYPH_POS_DEFAULT; + options->variations = NULL; + options->color_mode = CAIRO_COLOR_MODE_DEFAULT; + options->palette_index = CAIRO_COLOR_PALETTE_DEFAULT; + options->custom_palette = NULL; + options->custom_palette_size = 0; +} + +void +_cairo_font_options_init_copy (cairo_font_options_t *options, + const cairo_font_options_t *other) +{ + options->antialias = other->antialias; + options->subpixel_order = other->subpixel_order; + options->lcd_filter = other->lcd_filter; + options->hint_style = other->hint_style; + options->hint_metrics = other->hint_metrics; + options->round_glyph_positions = other->round_glyph_positions; + options->variations = other->variations ? strdup (other->variations) : NULL; + options->color_mode = other->color_mode; + options->palette_index = other->palette_index; + options->custom_palette_size = other->custom_palette_size; + options->custom_palette = NULL; + if (other->custom_palette) { + options->custom_palette = (cairo_palette_color_t *) malloc (sizeof (cairo_palette_color_t) * options->custom_palette_size); + memcpy (options->custom_palette, other->custom_palette, sizeof (cairo_palette_color_t) * options->custom_palette_size); + } +} + +cairo_bool_t +_cairo_font_options_compare (const cairo_font_options_t *a, + const cairo_font_options_t *b) +{ + if (a->antialias != b->antialias || + a->subpixel_order != b->subpixel_order || + a->lcd_filter != b->lcd_filter || + a->hint_style != b->hint_style || + a->hint_metrics != b->hint_metrics || + a->round_glyph_positions != b->round_glyph_positions || + a->color_mode != b->color_mode || + a->palette_index != b->palette_index || + a->custom_palette_size != b->custom_palette_size) + { + return FALSE; + } + + if (a->variations && b->variations && strcmp (a->variations, b->variations) != 0) + return FALSE; + else if (a->variations != b->variations) + return FALSE; + + if (a->custom_palette && b->custom_palette && + memcmp (a->custom_palette, b->custom_palette, sizeof (cairo_palette_color_t) * a->custom_palette_size) != 0) + { + return FALSE; + } + else if (a->custom_palette != b->custom_palette) + { + return FALSE; + } + + return TRUE; +} + +/** + * cairo_font_options_create: + * + * Allocates a new font options object with all options initialized + * to default values. + * + * Return value: a newly allocated #cairo_font_options_t. Free with + * cairo_font_options_destroy(). This function always returns a + * valid pointer; if memory cannot be allocated, then a special + * error object is returned where all operations on the object do nothing. + * You can check for this with cairo_font_options_status(). + * + * Since: 1.0 + **/ +cairo_font_options_t * +cairo_font_options_create (void) +{ + cairo_font_options_t *options; + + options = _cairo_calloc (sizeof (cairo_font_options_t)); + if (!options) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_font_options_t *) &_cairo_font_options_nil; + } + + _cairo_font_options_init_default (options); + + return options; +} + +/** + * cairo_font_options_copy: + * @original: a #cairo_font_options_t + * + * Allocates a new font options object copying the option values from + * @original. + * + * Return value: a newly allocated #cairo_font_options_t. Free with + * cairo_font_options_destroy(). This function always returns a + * valid pointer; if memory cannot be allocated, then a special + * error object is returned where all operations on the object do nothing. + * You can check for this with cairo_font_options_status(). + * + * Since: 1.0 + **/ +cairo_font_options_t * +cairo_font_options_copy (const cairo_font_options_t *original) +{ + cairo_font_options_t *options; + + if (cairo_font_options_status ((cairo_font_options_t *) original)) + return (cairo_font_options_t *) &_cairo_font_options_nil; + + options = _cairo_calloc (sizeof (cairo_font_options_t)); + if (!options) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_font_options_t *) &_cairo_font_options_nil; + } + + _cairo_font_options_init_copy (options, original); + + return options; +} + +void +_cairo_font_options_fini (cairo_font_options_t *options) +{ + free (options->variations); + free (options->custom_palette); +} + +/** + * cairo_font_options_destroy: + * @options: a #cairo_font_options_t + * + * Destroys a #cairo_font_options_t object created with + * cairo_font_options_create() or cairo_font_options_copy(). + * + * Since: 1.0 + **/ +void +cairo_font_options_destroy (cairo_font_options_t *options) +{ + if (cairo_font_options_status (options)) + return; + + _cairo_font_options_fini (options); + free (options); +} + +/** + * cairo_font_options_status: + * @options: a #cairo_font_options_t + * + * Checks whether an error has previously occurred for this + * font options object + * + * Return value: %CAIRO_STATUS_SUCCESS, %CAIRO_STATUS_NO_MEMORY, or + * %CAIRO_STATUS_NULL_POINTER. + * + * Since: 1.0 + **/ +cairo_status_t +cairo_font_options_status (cairo_font_options_t *options) +{ + if (options == NULL) + return CAIRO_STATUS_NULL_POINTER; + else if (options == (cairo_font_options_t *) &_cairo_font_options_nil) + return CAIRO_STATUS_NO_MEMORY; + else + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_font_options_merge: + * @options: a #cairo_font_options_t + * @other: another #cairo_font_options_t + * + * Merges non-default options from @other into @options, replacing + * existing values. This operation can be thought of as somewhat + * similar to compositing @other onto @options with the operation + * of %CAIRO_OPERATOR_OVER. + * + * Since: 1.0 + **/ +void +cairo_font_options_merge (cairo_font_options_t *options, + const cairo_font_options_t *other) +{ + if (cairo_font_options_status (options)) + return; + + if (cairo_font_options_status ((cairo_font_options_t *) other)) + return; + + if (other->antialias != CAIRO_ANTIALIAS_DEFAULT) + options->antialias = other->antialias; + if (other->subpixel_order != CAIRO_SUBPIXEL_ORDER_DEFAULT) + options->subpixel_order = other->subpixel_order; + if (other->lcd_filter != CAIRO_LCD_FILTER_DEFAULT) + options->lcd_filter = other->lcd_filter; + if (other->hint_style != CAIRO_HINT_STYLE_DEFAULT) + options->hint_style = other->hint_style; + if (other->hint_metrics != CAIRO_HINT_METRICS_DEFAULT) + options->hint_metrics = other->hint_metrics; + if (other->round_glyph_positions != CAIRO_ROUND_GLYPH_POS_DEFAULT) + options->round_glyph_positions = other->round_glyph_positions; + + if (other->variations) { + if (options->variations) { + char *p; + + /* 'merge' variations by concatenating - later entries win */ + p = malloc (strlen (other->variations) + strlen (options->variations) + 2); + p[0] = 0; + strcat (p, options->variations); + strcat (p, ","); + strcat (p, other->variations); + free (options->variations); + options->variations = p; + } + else { + options->variations = strdup (other->variations); + } + } + + if (other->color_mode != CAIRO_COLOR_MODE_DEFAULT) + options->color_mode = other->color_mode; + if (other->palette_index != CAIRO_COLOR_PALETTE_DEFAULT) + options->palette_index = other->palette_index; + if (other->custom_palette) { + options->custom_palette_size = other->custom_palette_size; + free (options->custom_palette); + options->custom_palette = (cairo_palette_color_t *) malloc (sizeof (cairo_palette_color_t) * options->custom_palette_size); + memcpy (options->custom_palette, other->custom_palette, sizeof (cairo_palette_color_t) * options->custom_palette_size); + } +} + +/** + * cairo_font_options_equal: + * @options: a #cairo_font_options_t + * @other: another #cairo_font_options_t + * + * Compares two font options objects for equality. + * + * Return value: %TRUE if all fields of the two font options objects match. + * Note that this function will return %FALSE if either object is in + * error. + * + * Since: 1.0 + **/ +cairo_bool_t +cairo_font_options_equal (const cairo_font_options_t *options, + const cairo_font_options_t *other) +{ + if (cairo_font_options_status ((cairo_font_options_t *) options)) + return FALSE; + if (cairo_font_options_status ((cairo_font_options_t *) other)) + return FALSE; + + if (options == other) + return TRUE; + + return (options->antialias == other->antialias && + options->subpixel_order == other->subpixel_order && + options->lcd_filter == other->lcd_filter && + options->hint_style == other->hint_style && + options->hint_metrics == other->hint_metrics && + options->round_glyph_positions == other->round_glyph_positions && + ((options->variations == NULL && other->variations == NULL) || + (options->variations != NULL && other->variations != NULL && + strcmp (options->variations, other->variations) == 0)) && + options->color_mode == other->color_mode && + options->palette_index == other->palette_index && + ((options->custom_palette == NULL && other->custom_palette == NULL) || + (options->custom_palette != NULL && other->custom_palette != NULL && + options->custom_palette_size == other->custom_palette_size && + memcmp (options->custom_palette, other->custom_palette, + sizeof (cairo_palette_color_t) * options->custom_palette_size) == 0))); +} + +/** + * cairo_font_options_hash: + * @options: a #cairo_font_options_t + * + * Compute a hash for the font options object; this value will + * be useful when storing an object containing a #cairo_font_options_t + * in a hash table. + * + * Return value: the hash value for the font options object. + * The return value can be cast to a 32-bit type if a + * 32-bit hash value is needed. + * + * Since: 1.0 + **/ +unsigned long +cairo_font_options_hash (const cairo_font_options_t *options) +{ + unsigned long hash = 0; + + if (cairo_font_options_status ((cairo_font_options_t *) options)) + options = &_cairo_font_options_nil; /* force default values */ + + if (options->variations) + hash = _cairo_string_hash (options->variations, strlen (options->variations)); + + hash ^= options->palette_index; + + return ((options->antialias) | + (options->subpixel_order << 4) | + (options->lcd_filter << 8) | + (options->hint_style << 12) | + (options->hint_metrics << 16) | + (options->color_mode << 20)) ^ hash; +} + +/** + * cairo_font_options_set_antialias: + * @options: a #cairo_font_options_t + * @antialias: the new antialiasing mode + * + * Sets the antialiasing mode for the font options object. This + * specifies the type of antialiasing to do when rendering text. + * + * Since: 1.0 + **/ +void +cairo_font_options_set_antialias (cairo_font_options_t *options, + cairo_antialias_t antialias) +{ + if (cairo_font_options_status (options)) + return; + + options->antialias = antialias; +} + +/** + * cairo_font_options_get_antialias: + * @options: a #cairo_font_options_t + * + * Gets the antialiasing mode for the font options object. + * + * Return value: the antialiasing mode + * + * Since: 1.0 + **/ +cairo_antialias_t +cairo_font_options_get_antialias (const cairo_font_options_t *options) +{ + if (cairo_font_options_status ((cairo_font_options_t *) options)) + return CAIRO_ANTIALIAS_DEFAULT; + + return options->antialias; +} + +/** + * cairo_font_options_set_subpixel_order: + * @options: a #cairo_font_options_t + * @subpixel_order: the new subpixel order + * + * Sets the subpixel order for the font options object. The subpixel + * order specifies the order of color elements within each pixel on + * the display device when rendering with an antialiasing mode of + * %CAIRO_ANTIALIAS_SUBPIXEL. See the documentation for + * #cairo_subpixel_order_t for full details. + * + * Since: 1.0 + **/ +void +cairo_font_options_set_subpixel_order (cairo_font_options_t *options, + cairo_subpixel_order_t subpixel_order) +{ + if (cairo_font_options_status (options)) + return; + + options->subpixel_order = subpixel_order; +} + +/** + * cairo_font_options_get_subpixel_order: + * @options: a #cairo_font_options_t + * + * Gets the subpixel order for the font options object. + * See the documentation for #cairo_subpixel_order_t for full details. + * + * Return value: the subpixel order for the font options object + * + * Since: 1.0 + **/ +cairo_subpixel_order_t +cairo_font_options_get_subpixel_order (const cairo_font_options_t *options) +{ + if (cairo_font_options_status ((cairo_font_options_t *) options)) + return CAIRO_SUBPIXEL_ORDER_DEFAULT; + + return options->subpixel_order; +} + +/** + * _cairo_font_options_set_lcd_filter: + * @options: a #cairo_font_options_t + * @lcd_filter: the new LCD filter + * + * Sets the LCD filter for the font options object. The LCD filter + * specifies how pixels are filtered when rendered with an antialiasing + * mode of %CAIRO_ANTIALIAS_SUBPIXEL. See the documentation for + * #cairo_lcd_filter_t for full details. + **/ +void +_cairo_font_options_set_lcd_filter (cairo_font_options_t *options, + cairo_lcd_filter_t lcd_filter) +{ + if (cairo_font_options_status (options)) + return; + + options->lcd_filter = lcd_filter; +} + +/** + * _cairo_font_options_get_lcd_filter: + * @options: a #cairo_font_options_t + * + * Gets the LCD filter for the font options object. + * See the documentation for #cairo_lcd_filter_t for full details. + * + * Return value: the LCD filter for the font options object + **/ +cairo_lcd_filter_t +_cairo_font_options_get_lcd_filter (const cairo_font_options_t *options) +{ + if (cairo_font_options_status ((cairo_font_options_t *) options)) + return CAIRO_LCD_FILTER_DEFAULT; + + return options->lcd_filter; +} + +/** + * _cairo_font_options_set_round_glyph_positions: + * @options: a #cairo_font_options_t + * @round: the new rounding value + * + * Sets the rounding options for the font options object. If rounding is set, a + * glyph's position will be rounded to integer values. + **/ +void +_cairo_font_options_set_round_glyph_positions (cairo_font_options_t *options, + cairo_round_glyph_positions_t round) +{ + if (cairo_font_options_status (options)) + return; + + options->round_glyph_positions = round; +} + +/** + * _cairo_font_options_get_round_glyph_positions: + * @options: a #cairo_font_options_t + * + * Gets the glyph position rounding option for the font options object. + * + * Return value: The round glyph posistions flag for the font options object. + **/ +cairo_round_glyph_positions_t +_cairo_font_options_get_round_glyph_positions (const cairo_font_options_t *options) +{ + if (cairo_font_options_status ((cairo_font_options_t *) options)) + return CAIRO_ROUND_GLYPH_POS_DEFAULT; + + return options->round_glyph_positions; +} + +/** + * cairo_font_options_set_hint_style: + * @options: a #cairo_font_options_t + * @hint_style: the new hint style + * + * Sets the hint style for font outlines for the font options object. + * This controls whether to fit font outlines to the pixel grid, + * and if so, whether to optimize for fidelity or contrast. + * See the documentation for #cairo_hint_style_t for full details. + * + * Since: 1.0 + **/ +void +cairo_font_options_set_hint_style (cairo_font_options_t *options, + cairo_hint_style_t hint_style) +{ + if (cairo_font_options_status (options)) + return; + + options->hint_style = hint_style; +} + +/** + * cairo_font_options_get_hint_style: + * @options: a #cairo_font_options_t + * + * Gets the hint style for font outlines for the font options object. + * See the documentation for #cairo_hint_style_t for full details. + * + * Return value: the hint style for the font options object + * + * Since: 1.0 + **/ +cairo_hint_style_t +cairo_font_options_get_hint_style (const cairo_font_options_t *options) +{ + if (cairo_font_options_status ((cairo_font_options_t *) options)) + return CAIRO_HINT_STYLE_DEFAULT; + + return options->hint_style; +} + +/** + * cairo_font_options_set_hint_metrics: + * @options: a #cairo_font_options_t + * @hint_metrics: the new metrics hinting mode + * + * Sets the metrics hinting mode for the font options object. This + * controls whether metrics are quantized to integer values in + * device units. + * See the documentation for #cairo_hint_metrics_t for full details. + * + * Since: 1.0 + **/ +void +cairo_font_options_set_hint_metrics (cairo_font_options_t *options, + cairo_hint_metrics_t hint_metrics) +{ + if (cairo_font_options_status (options)) + return; + + options->hint_metrics = hint_metrics; +} + +/** + * cairo_font_options_get_hint_metrics: + * @options: a #cairo_font_options_t + * + * Gets the metrics hinting mode for the font options object. + * See the documentation for #cairo_hint_metrics_t for full details. + * + * Return value: the metrics hinting mode for the font options object + * + * Since: 1.0 + **/ +cairo_hint_metrics_t +cairo_font_options_get_hint_metrics (const cairo_font_options_t *options) +{ + if (cairo_font_options_status ((cairo_font_options_t *) options)) + return CAIRO_HINT_METRICS_DEFAULT; + + return options->hint_metrics; +} + +/** + * cairo_font_options_set_variations: + * @options: a #cairo_font_options_t + * @variations: the new font variations, or %NULL + * + * Sets the OpenType font variations for the font options object. + * Font variations are specified as a string with a format that + * is similar to the CSS font-variation-settings. The string contains + * a comma-separated list of axis assignments, which each assignment + * consists of a 4-character axis name and a value, separated by + * whitespace and optional equals sign. + * + * Examples: + * + * wght=200,wdth=140.5 + * + * wght 200 , wdth 140.5 + * + * Since: 1.16 + **/ +void +cairo_font_options_set_variations (cairo_font_options_t *options, + const char *variations) +{ + char *tmp = variations ? strdup (variations) : NULL; + free (options->variations); + options->variations = tmp; +} + +/** + * cairo_font_options_get_variations: + * @options: a #cairo_font_options_t + * + * Gets the OpenType font variations for the font options object. + * See cairo_font_options_set_variations() for details about the + * string format. + * + * Return value: the font variations for the font options object. The + * returned string belongs to the @options and must not be modified. + * It is valid until either the font options object is destroyed or + * the font variations in this object is modified with + * cairo_font_options_set_variations(). + * + * Since: 1.16 + **/ +const char * +cairo_font_options_get_variations (cairo_font_options_t *options) +{ + return options->variations; +} + +/** + * cairo_font_options_set_color_mode: + * @options: a #cairo_font_options_t + * @color_mode: the new color mode + * + * Sets the color mode for the font options object. This controls + * whether color fonts are to be rendered in color or as outlines. + * See the documentation for #cairo_color_mode_t for full details. + * + * Since: 1.18 + **/ +cairo_public void +cairo_font_options_set_color_mode (cairo_font_options_t *options, + cairo_color_mode_t color_mode) +{ + if (cairo_font_options_status (options)) + return; + + options->color_mode = color_mode; +} + +/** + * cairo_font_options_get_color_mode: + * @options: a #cairo_font_options_t + * + * Gets the color mode for the font options object. + * See the documentation for #cairo_color_mode_t for full details. + * + * Return value: the color mode for the font options object + * + * Since: 1.18 + **/ +cairo_public cairo_color_mode_t +cairo_font_options_get_color_mode (const cairo_font_options_t *options) +{ + if (cairo_font_options_status ((cairo_font_options_t *) options)) + return CAIRO_COLOR_MODE_DEFAULT; + + return options->color_mode; +} + +/** + * CAIRO_COLOR_PALETTE_DEFAULT: + * + * The default color palette index. + * + * Since: 1.18 + **/ + +/** + * cairo_font_options_set_color_palette: + * @options: a #cairo_font_options_t + * @palette_index: the palette index in the CPAL table + * + * Sets the OpenType font color palette for the font options + * object. OpenType color fonts with a CPAL table may contain multiple + * palettes. The default color palette index is %CAIRO_COLOR_PALETTE_DEFAULT. + * + * If @palette_index is invalid, the default palette is used. + * + * Individual colors within the palette may be overriden with + * cairo_font_options_set_custom_palette_color(). + * + * Since: 1.18 + **/ +void +cairo_font_options_set_color_palette (cairo_font_options_t *options, + unsigned int palette_index) +{ + if (cairo_font_options_status (options)) + return; + + options->palette_index = palette_index; +} + +/** + * cairo_font_options_get_color_palette: + * @options: a #cairo_font_options_t + * + * Gets the current OpenType color font palette for the font options object. + * + * Return value: the palette index + * + * Since: 1.18 + **/ +unsigned int +cairo_font_options_get_color_palette (const cairo_font_options_t *options) +{ + if (cairo_font_options_status ((cairo_font_options_t *) options)) + return CAIRO_COLOR_PALETTE_DEFAULT; + + return options->palette_index; +} + +/** + * cairo_font_options_set_custom_palette_color: + * @options: a #cairo_font_options_t + * @index: the index of the color to set + * @red: red component of color + * @green: green component of color + * @blue: blue component of color + * @alpha: alpha component of color + * + * Sets a custom palette color for the font options object. This + * overrides the palette color at the specified color index. This override is + * independent of the selected palette index and will remain in place + * even if cairo_font_options_set_color_palette() is called to change + * the palette index. + * + * It is only possible to override color indexes already in the font + * palette. + * + * Since: 1.18 + */ +void +cairo_font_options_set_custom_palette_color (cairo_font_options_t *options, + unsigned int index, + double red, double green, + double blue, double alpha) +{ + unsigned int idx; + + for (idx = 0; idx < options->custom_palette_size; idx++) { + if (options->custom_palette[idx].index == index) { + break; + } + } + + if (idx == options->custom_palette_size) { + options->custom_palette_size++; + options->custom_palette = (cairo_palette_color_t *) + _cairo_realloc_ab (options->custom_palette, + sizeof (cairo_palette_color_t), + options->custom_palette_size); + } + + /* beware of holes */ + memset (&options->custom_palette[idx], 0, sizeof (cairo_palette_color_t)); + + options->custom_palette[idx].index = index; + options->custom_palette[idx].red = red; + options->custom_palette[idx].green = green; + options->custom_palette[idx].blue = blue; + options->custom_palette[idx].alpha = alpha; +} + +/** + * cairo_font_options_get_custom_palette_color: + * @options: a #cairo_font_options_t + * @index: the index of the color to get + * @red: return location for red component of color + * @green: return location for green component of color + * @blue: return location for blue component of color + * @alpha: return location for alpha component of color + * + * Gets the custom palette color for the color index for the font options object. + * + * Returns: `CAIRO_STATUS_SUCCESS` if a custom palette color is + * returned, `CAIRO_STATUS_INVALID_INDEX` if no custom color exists + * for the color index. + * + * Since: 1.18 + */ +cairo_status_t +cairo_font_options_get_custom_palette_color (cairo_font_options_t *options, + unsigned int index, + double *red, double *green, + double *blue, double *alpha) +{ + unsigned int idx; + + for (idx = 0; idx < options->custom_palette_size; idx++) { + if (options->custom_palette[idx].index == index) { + *red = options->custom_palette[idx].red; + *green = options->custom_palette[idx].green; + *blue = options->custom_palette[idx].blue; + *alpha = options->custom_palette[idx].alpha; + return CAIRO_STATUS_SUCCESS; + } + } + + return CAIRO_STATUS_INVALID_INDEX; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-fontconfig-private.h b/local/recipes/libs/cairo/source/src/cairo-fontconfig-private.h new file mode 100644 index 0000000000..15dc032810 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-fontconfig-private.h @@ -0,0 +1,52 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2000 Keith Packard + * Copyright © 2005 Red Hat, Inc + * Copyright © 2010 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Graydon Hoare + * Owen Taylor + * Keith Packard + * Carl Worth + * Chris Wilson + */ + +#ifndef _CAIRO_FONTCONFIG_PRIVATE_H +#define _CAIRO_FONTCONFIG_PRIVATE_H + +#include "cairo.h" + +#if CAIRO_HAS_FC_FONT +#include +#include +#endif + +#endif /* _CAIRO_FONTCONFIG_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-freed-pool-private.h b/local/recipes/libs/cairo/source/src/cairo-freed-pool-private.h new file mode 100644 index 0000000000..ced1adb3d1 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-freed-pool-private.h @@ -0,0 +1,139 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_FREED_POOL_H +#define CAIRO_FREED_POOL_H + +#include "cairoint.h" +#include "cairo-atomic-private.h" + +CAIRO_BEGIN_DECLS + +#define DISABLE_FREED_POOLS 0 + +#if HAS_ATOMIC_OPS && ! DISABLE_FREED_POOLS +/* Keep a stash of recently freed clip_paths, since we need to + * reallocate them frequently. + */ +#define MAX_FREED_POOL_SIZE 16 +typedef struct { + cairo_atomic_intptr_t pool[MAX_FREED_POOL_SIZE]; + cairo_atomic_int_t top; +} freed_pool_t; + +static cairo_always_inline void * +_atomic_fetch (cairo_atomic_intptr_t *slot) +{ + void *ptr; + + do { + ptr = _cairo_atomic_ptr_get (slot); + } while (! _cairo_atomic_ptr_cmpxchg (slot, ptr, NULL)); + + return ptr; +} + +static cairo_always_inline cairo_bool_t +_atomic_store (cairo_atomic_intptr_t *slot, void *ptr) +{ + return _cairo_atomic_ptr_cmpxchg (slot, NULL, ptr); +} + +cairo_private void * +_freed_pool_get_search (freed_pool_t *pool); + +static inline void * +_freed_pool_get (freed_pool_t *pool) +{ + void *ptr; + int i; + + i = _cairo_atomic_int_get_relaxed (&pool->top) - 1; + if (i < 0) + i = 0; + + ptr = _atomic_fetch (&pool->pool[i]); + if (likely (ptr != NULL)) { + _cairo_atomic_int_set_relaxed (&pool->top, i); + return ptr; + } + + /* either empty or contended */ + return _freed_pool_get_search (pool); +} + +cairo_private void +_freed_pool_put_search (freed_pool_t *pool, void *ptr); + +static inline void +_freed_pool_put (freed_pool_t *pool, void *ptr) +{ + int i; + + i = _cairo_atomic_int_get_relaxed (&pool->top); + if (likely (i < ARRAY_LENGTH (pool->pool) && + _atomic_store (&pool->pool[i], ptr))) + { + _cairo_atomic_int_set_relaxed (&pool->top, i + 1); + return; + } + + /* either full or contended */ + _freed_pool_put_search (pool, ptr); +} + +cairo_private void +_freed_pool_reset (freed_pool_t *pool); + +#define HAS_FREED_POOL 1 + +#else + +/* A warning about an unused freed-pool in a build without atomics + * enabled usually indicates a missing _freed_pool_reset() in the + * static reset function */ + +typedef int freed_pool_t; + +#define _freed_pool_get(pool) NULL +#define _freed_pool_put(pool, ptr) free(ptr) +#define _freed_pool_reset(ptr) + +#endif + +CAIRO_END_DECLS + +#endif /* CAIRO_FREED_POOL_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-freed-pool.c b/local/recipes/libs/cairo/source/src/cairo-freed-pool.c new file mode 100644 index 0000000000..6d46ab1c13 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-freed-pool.c @@ -0,0 +1,92 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-freed-pool-private.h" + +#if HAS_FREED_POOL + +void * +_freed_pool_get_search (freed_pool_t *pool) +{ + void *ptr; + int i; + + for (i = ARRAY_LENGTH (pool->pool); i--;) { + ptr = _atomic_fetch (&pool->pool[i]); + if (ptr != NULL) { + _cairo_atomic_int_set_relaxed (&pool->top, i); + return ptr; + } + } + + /* empty */ + _cairo_atomic_int_set_relaxed (&pool->top, 0); + return NULL; +} + +void +_freed_pool_put_search (freed_pool_t *pool, void *ptr) +{ + int i; + + for (i = 0; i < ARRAY_LENGTH (pool->pool); i++) { + if (_atomic_store (&pool->pool[i], ptr)) { + _cairo_atomic_int_set_relaxed (&pool->top, i + 1); + return; + } + } + + /* full */ + _cairo_atomic_int_set_relaxed (&pool->top, i); + free (ptr); +} + +void +_freed_pool_reset (freed_pool_t *pool) +{ + int i; + + for (i = 0; i < ARRAY_LENGTH (pool->pool); i++) { + free (_atomic_fetch (&pool->pool[i])); + } + + _cairo_atomic_int_set_relaxed (&pool->top, 0); +} + +#endif diff --git a/local/recipes/libs/cairo/source/src/cairo-freelist-private.h b/local/recipes/libs/cairo/source/src/cairo-freelist-private.h new file mode 100644 index 0000000000..f85f689141 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-freelist-private.h @@ -0,0 +1,139 @@ +/* + * Copyright © 2006 Joonas Pihlaja + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ +#ifndef CAIRO_FREELIST_H +#define CAIRO_FREELIST_H + +#include "cairo-types-private.h" +#include "cairo-compiler-private.h" +#include "cairo-freelist-type-private.h" + +/* for stand-alone compilation*/ +#ifndef VG +#define VG(x) +#endif + +#ifndef NULL +#define NULL (void *) 0 +#endif + +/* Initialise a freelist that will be responsible for allocating + * nodes of size nodesize. */ +cairo_private void +_cairo_freelist_init (cairo_freelist_t *freelist, unsigned nodesize); + +/* Deallocate any nodes in the freelist. */ +cairo_private void +_cairo_freelist_fini (cairo_freelist_t *freelist); + +/* Allocate a new node from the freelist. If the freelist contains no + * nodes, a new one will be allocated using malloc(). The caller is + * responsible for calling _cairo_freelist_free() or free() on the + * returned node. Returns %NULL on memory allocation error. */ +cairo_private void * +_cairo_freelist_alloc (cairo_freelist_t *freelist); + +/* Allocate a new node from the freelist. If the freelist contains no + * nodes, a new one will be allocated using calloc(). The caller is + * responsible for calling _cairo_freelist_free() or free() on the + * returned node. Returns %NULL on memory allocation error. */ +cairo_private void * +_cairo_freelist_calloc (cairo_freelist_t *freelist); + +/* Return a node to the freelist. This does not deallocate the memory, + * but makes it available for later reuse by + * _cairo_freelist_alloc(). */ +cairo_private void +_cairo_freelist_free (cairo_freelist_t *freelist, void *node); + + +cairo_private void +_cairo_freepool_init (cairo_freepool_t *freepool, unsigned nodesize); + +cairo_private void +_cairo_freepool_fini (cairo_freepool_t *freepool); + +static inline void +_cairo_freepool_reset (cairo_freepool_t *freepool) +{ + while (freepool->pools != &freepool->embedded_pool) { + cairo_freelist_pool_t *pool = freepool->pools; + freepool->pools = pool->next; + pool->next = freepool->freepools; + freepool->freepools = pool; + } + + freepool->embedded_pool.rem = sizeof (freepool->embedded_data); + freepool->embedded_pool.data = freepool->embedded_data; +} + +cairo_private void * +_cairo_freepool_alloc_from_new_pool (cairo_freepool_t *freepool); + +static inline void * +_cairo_freepool_alloc_from_pool (cairo_freepool_t *freepool) +{ + cairo_freelist_pool_t *pool; + uint8_t *ptr; + + pool = freepool->pools; + if (unlikely (freepool->nodesize > pool->rem)) + return _cairo_freepool_alloc_from_new_pool (freepool); + + ptr = pool->data; + pool->data += freepool->nodesize; + pool->rem -= freepool->nodesize; + VG (VALGRIND_MAKE_MEM_UNDEFINED (ptr, freepool->nodesize)); + return ptr; +} + +static inline void * +_cairo_freepool_alloc (cairo_freepool_t *freepool) +{ + cairo_freelist_node_t *node; + + node = freepool->first_free_node; + if (node == NULL) + return _cairo_freepool_alloc_from_pool (freepool); + + VG (VALGRIND_MAKE_MEM_DEFINED (node, sizeof (node->next))); + freepool->first_free_node = node->next; + VG (VALGRIND_MAKE_MEM_UNDEFINED (node, freepool->nodesize)); + + return node; +} + +cairo_private cairo_status_t +_cairo_freepool_alloc_array (cairo_freepool_t *freepool, + int count, + void **array); + +static inline void +_cairo_freepool_free (cairo_freepool_t *freepool, void *ptr) +{ + cairo_freelist_node_t *node = ptr; + + node->next = freepool->first_free_node; + freepool->first_free_node = node; + VG (VALGRIND_MAKE_MEM_UNDEFINED (node, freepool->nodesize)); +} + +#endif /* CAIRO_FREELIST_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-freelist-type-private.h b/local/recipes/libs/cairo/source/src/cairo-freelist-type-private.h new file mode 100644 index 0000000000..4dd0564610 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-freelist-type-private.h @@ -0,0 +1,54 @@ +/* + * Copyright © 2010 Joonas Pihlaja + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ +#ifndef CAIRO_FREELIST_TYPE_H +#define CAIRO_FREELIST_TYPE_H + +#include "cairo-types-private.h" +#include "cairo-compiler-private.h" + +typedef struct _cairo_freelist_node cairo_freelist_node_t; +struct _cairo_freelist_node { + cairo_freelist_node_t *next; +}; + +typedef struct _cairo_freelist { + cairo_freelist_node_t *first_free_node; + unsigned nodesize; +} cairo_freelist_t; + +typedef struct _cairo_freelist_pool cairo_freelist_pool_t; +struct _cairo_freelist_pool { + cairo_freelist_pool_t *next; + unsigned size, rem; + uint8_t *data; +}; + +typedef struct _cairo_freepool { + cairo_freelist_node_t *first_free_node; + cairo_freelist_pool_t *pools; + cairo_freelist_pool_t *freepools; + unsigned nodesize; + cairo_freelist_pool_t embedded_pool; + uint8_t embedded_data[1000]; +} cairo_freepool_t; + +#endif /* CAIRO_FREELIST_TYPE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-freelist.c b/local/recipes/libs/cairo/source/src/cairo-freelist.c new file mode 100644 index 0000000000..7f2f3b30b8 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-freelist.c @@ -0,0 +1,191 @@ +/* + * Copyright © 2006 Joonas Pihlaja + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include "cairoint.h" + +#include "cairo-error-private.h" +#include "cairo-freelist-private.h" + +void +_cairo_freelist_init (cairo_freelist_t *freelist, unsigned nodesize) +{ + memset (freelist, 0, sizeof (cairo_freelist_t)); + freelist->nodesize = nodesize; +} + +void +_cairo_freelist_fini (cairo_freelist_t *freelist) +{ + cairo_freelist_node_t *node = freelist->first_free_node; + while (node) { + cairo_freelist_node_t *next; + + VG (VALGRIND_MAKE_MEM_DEFINED (node, sizeof (node->next))); + next = node->next; + + free (node); + node = next; + } +} + +void * +_cairo_freelist_alloc (cairo_freelist_t *freelist) +{ + if (freelist->first_free_node) { + cairo_freelist_node_t *node; + + node = freelist->first_free_node; + VG (VALGRIND_MAKE_MEM_DEFINED (node, sizeof (node->next))); + freelist->first_free_node = node->next; + VG (VALGRIND_MAKE_MEM_UNDEFINED (node, freelist->nodesize)); + + return node; + } + + return _cairo_malloc (freelist->nodesize); +} + +void * +_cairo_freelist_calloc (cairo_freelist_t *freelist) +{ + void *node = _cairo_freelist_alloc (freelist); + if (node) + memset (node, 0, freelist->nodesize); + return node; +} + +void +_cairo_freelist_free (cairo_freelist_t *freelist, void *voidnode) +{ + cairo_freelist_node_t *node = voidnode; + if (node) { + node->next = freelist->first_free_node; + freelist->first_free_node = node; + VG (VALGRIND_MAKE_MEM_UNDEFINED (node, freelist->nodesize)); + } +} + +void +_cairo_freepool_init (cairo_freepool_t *freepool, unsigned nodesize) +{ + freepool->first_free_node = NULL; + freepool->pools = &freepool->embedded_pool; + freepool->freepools = NULL; + freepool->nodesize = nodesize; + + freepool->embedded_pool.next = NULL; + freepool->embedded_pool.size = sizeof (freepool->embedded_data); + freepool->embedded_pool.rem = sizeof (freepool->embedded_data); + freepool->embedded_pool.data = freepool->embedded_data; + + VG (VALGRIND_MAKE_MEM_UNDEFINED (freepool->embedded_data, sizeof (freepool->embedded_data))); +} + +void +_cairo_freepool_fini (cairo_freepool_t *freepool) +{ + cairo_freelist_pool_t *pool; + + pool = freepool->pools; + while (pool != &freepool->embedded_pool) { + cairo_freelist_pool_t *next = pool->next; + free (pool); + pool = next; + } + + pool = freepool->freepools; + while (pool != NULL) { + cairo_freelist_pool_t *next = pool->next; + free (pool); + pool = next; + } + + VG (VALGRIND_MAKE_MEM_UNDEFINED (freepool, sizeof (freepool))); +} + +void * +_cairo_freepool_alloc_from_new_pool (cairo_freepool_t *freepool) +{ + cairo_freelist_pool_t *pool; + int poolsize; + + if (freepool->freepools != NULL) { + pool = freepool->freepools; + freepool->freepools = pool->next; + + poolsize = pool->size; + } else { + if (freepool->pools != &freepool->embedded_pool) + poolsize = 2 * freepool->pools->size; + else + poolsize = (128 * freepool->nodesize + 8191) & -8192; + + pool = _cairo_malloc (sizeof (cairo_freelist_pool_t) + poolsize); + if (unlikely (pool == NULL)) + return pool; + + pool->size = poolsize; + } + + pool->next = freepool->pools; + freepool->pools = pool; + + pool->rem = poolsize - freepool->nodesize; + pool->data = (uint8_t *) (pool + 1) + freepool->nodesize; + + VG (VALGRIND_MAKE_MEM_UNDEFINED (pool->data, pool->rem)); + + return pool + 1; +} + +cairo_status_t +_cairo_freepool_alloc_array (cairo_freepool_t *freepool, + int count, + void **array) +{ + int i; + + for (i = 0; i < count; i++) { + cairo_freelist_node_t *node; + + node = freepool->first_free_node; + if (likely (node != NULL)) { + VG (VALGRIND_MAKE_MEM_DEFINED (node, sizeof (node->next))); + freepool->first_free_node = node->next; + VG (VALGRIND_MAKE_MEM_UNDEFINED (node, freepool->nodesize)); + } else { + node = _cairo_freepool_alloc_from_pool (freepool); + if (unlikely (node == NULL)) + goto CLEANUP; + } + + array[i] = node; + } + + return CAIRO_STATUS_SUCCESS; + + CLEANUP: + while (i--) + _cairo_freepool_free (freepool, array[i]); + + return _cairo_error (CAIRO_STATUS_NO_MEMORY); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-ft-font.c b/local/recipes/libs/cairo/source/src/cairo-ft-font.c new file mode 100644 index 0000000000..b5d08ee1b3 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-ft-font.c @@ -0,0 +1,4710 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2000 Keith Packard + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Graydon Hoare + * Owen Taylor + * Keith Packard + * Carl Worth + */ + +#define _DEFAULT_SOURCE /* for strdup() */ +#include "cairoint.h" + +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-ft-private.h" +#include "cairo-list-inline.h" +#include "cairo-path-private.h" +#include "cairo-pattern-private.h" +#include "cairo-pixman-private.h" +#include "cairo-recording-surface-private.h" + +#include + +#include "cairo-fontconfig-private.h" + +#include +#include FT_FREETYPE_H +#include FT_OUTLINE_H +#include FT_IMAGE_H +#include FT_BITMAP_H +#include FT_TRUETYPE_TABLES_H +#include FT_FONT_FORMATS_H +#include FT_MULTIPLE_MASTERS_H +#include FT_SYNTHESIS_H +#include FT_LCD_FILTER_H + +#if HAVE_FT_SVG_DOCUMENT +#include FT_OTSVG_H +#endif + +#if HAVE_UNISTD_H +#include +#elif !defined(access) +#define access(p, m) 0 +#endif + +/* FreeType version older than 2.11 does not have the FT_RENDER_MODE_SDF enum value in FT_Render_Mode */ +#if FREETYPE_MAJOR > 2 || (FREETYPE_MAJOR == 2 && FREETYPE_MINOR >= 11) +#define HAVE_FT_RENDER_MODE_SDF 1 +#endif + +#define DOUBLE_FROM_26_6(t) ((double)(t) / 64.0) +#define DOUBLE_TO_16_16(d) ((FT_Fixed)((d) * 65536.0)) +#define DOUBLE_FROM_16_16(t) ((double)(t) / 65536.0) + +/* SCALE() mimics code from commit 399b00a99b2bbc1c56a05974c936aa69a08021f5 + * concerning a potential division by 0, but instead of doing a * (1/b), it + * does a/b, thus improving the accuracy. With a * (1/b), for a bitmap font + * of size 13, the computed -y_bearing was 0x1.6000000000001p+3 instead of + * 0x1.6p+3 (= 11). This triggered a bug in GNU Emacs (when built against + * cairo), which rounded the value to an integer with ceil(). + * Details: + * https://gitlab.freedesktop.org/cairo/cairo/-/issues/503 + * https://debbugs.gnu.org/cgi/bugreport.cgi?bug=44284 + * + * Note that rounding errors are not necessarily expected by applications + * in simple cases like the GNU Emacs one (an identity transformation, + * which should normally leave the inputs unchanged). However, with the + * current cairo code, due to the scaling, there is no guarantee that + * rounding errors will always be avoided at the end. For instance, + * (a/b)*b may be different from a, but this is still better than doing + * (a*(1/b))*b. + * + * According to the commit mentioned above, avoiding a division by zero + * was an attempt to fix + * https://bugzilla.gnome.org/show_bug.cgi?id=311299 + * but this did not actually solve the problem. So it might be possible + * to change SCALE() to just do (a) / (b). + */ +#define SCALE(a,b) ((b) == 0 ? 0.0 : (a) / (b)) + +/* This is the max number of FT_face objects we keep open at once + */ +#define MAX_OPEN_FACES 10 + +/** + * SECTION:cairo-ft + * @Title: FreeType Fonts + * @Short_Description: Font support for FreeType + * @See_Also: #cairo_font_face_t + * + * The FreeType font backend is primarily used to render text on GNU/Linux + * systems, but can be used on other platforms too. + **/ + +/** + * CAIRO_HAS_FT_FONT: + * + * Defined if the FreeType font backend is available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.0 + **/ + +/** + * CAIRO_HAS_FC_FONT: + * + * Defined if the Fontconfig-specific functions of the FreeType font backend + * are available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.10 + **/ + +/* + * The simple 2x2 matrix is converted into separate scale and shape + * factors so that hinting works right + */ + +typedef struct _cairo_ft_font_transform { + double x_scale, y_scale; + double shape[2][2]; +} cairo_ft_font_transform_t; + +/* + * We create an object that corresponds to a single font on the disk; + * (identified by a filename/id pair) these are shared between all + * fonts using that file. For cairo_ft_font_face_create_for_ft_face(), we + * just create a one-off version with a permanent face value. + */ + +typedef struct _cairo_ft_font_face cairo_ft_font_face_t; + +struct _cairo_ft_unscaled_font { + cairo_unscaled_font_t base; + + cairo_bool_t from_face; /* was the FT_Face provided by user? */ + FT_Face face; /* provided or cached face */ + + /* only set if from_face is false */ + char *filename; + int id; + + /* We temporarily scale the unscaled font as needed */ + cairo_bool_t have_scale; + cairo_matrix_t current_scale; + double x_scale; /* Extracted X scale factor */ + double y_scale; /* Extracted Y scale factor */ + cairo_bool_t have_shape; /* true if the current scale has a non-scale component*/ + cairo_matrix_t current_shape; + FT_Matrix Current_Shape; + + unsigned int have_color_set : 1; + unsigned int have_color : 1; /* true if the font contains color glyphs */ + FT_Fixed *variations; /* variation settings that FT_Face came */ + unsigned int num_palettes; + + cairo_mutex_t mutex; + int lock_count; + + cairo_ft_font_face_t *faces; /* Linked list of faces for this font */ +}; + +static int +_cairo_ft_unscaled_font_keys_equal (const void *key_a, + const void *key_b); + +static void +_cairo_ft_unscaled_font_fini (cairo_ft_unscaled_font_t *unscaled); + +typedef struct _cairo_ft_options { + cairo_font_options_t base; + unsigned int load_flags; /* flags for FT_Load_Glyph */ + unsigned int synth_flags; +} cairo_ft_options_t; + +static void +_cairo_ft_options_init_copy (cairo_ft_options_t *options, + const cairo_ft_options_t *other) +{ + _cairo_font_options_init_copy (&options->base, &other->base); + options->load_flags = other->load_flags; + options->synth_flags = other->synth_flags; +} + +static void +_cairo_ft_options_fini (cairo_ft_options_t *options) +{ + _cairo_font_options_fini (&options->base); +} + +struct _cairo_ft_font_face { + cairo_font_face_t base; + + cairo_ft_unscaled_font_t *unscaled; + cairo_ft_options_t ft_options; + cairo_ft_font_face_t *next; + +#if CAIRO_HAS_FC_FONT + FcPattern *pattern; /* if pattern is set, the above fields will be NULL */ + cairo_font_face_t *resolved_font_face; + FcConfig *resolved_config; +#endif +}; + +static const cairo_unscaled_font_backend_t cairo_ft_unscaled_font_backend; + +#if CAIRO_HAS_FC_FONT +static cairo_status_t +_cairo_ft_font_options_substitute (const cairo_font_options_t *options, + FcPattern *pattern); + +static cairo_font_face_t * +_cairo_ft_resolve_pattern (FcPattern *pattern, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options); + +#endif + +cairo_status_t +_cairo_ft_to_cairo_error (FT_Error error) +{ + /* Currently we don't get many (any?) useful statuses here. + * Populate as needed. */ + switch (error) + { + case FT_Err_Ok: + return CAIRO_STATUS_SUCCESS; + case FT_Err_Out_Of_Memory: + return CAIRO_STATUS_NO_MEMORY; + default: + return CAIRO_STATUS_FREETYPE_ERROR; + } +} + +/* + * We maintain a hash table to map file/id => #cairo_ft_unscaled_font_t. + * The hash table itself isn't limited in size. However, we limit the + * number of FT_Face objects we keep around; when we've exceeded that + * limit and need to create a new FT_Face, we dump the FT_Face from a + * random #cairo_ft_unscaled_font_t which has an unlocked FT_Face, (if + * there are any). + */ + +typedef struct _cairo_ft_unscaled_font_map { + cairo_hash_table_t *hash_table; + FT_Library ft_library; + int num_open_faces; +} cairo_ft_unscaled_font_map_t; + +static cairo_ft_unscaled_font_map_t *cairo_ft_unscaled_font_map = NULL; + + +static FT_Face +_cairo_ft_unscaled_font_lock_face (cairo_ft_unscaled_font_t *unscaled); + +static void +_cairo_ft_unscaled_font_unlock_face (cairo_ft_unscaled_font_t *unscaled); + +static cairo_bool_t +_cairo_ft_scaled_font_is_vertical (cairo_scaled_font_t *scaled_font); + + +static void +_font_map_release_face_lock_held (cairo_ft_unscaled_font_map_t *font_map, + cairo_ft_unscaled_font_t *unscaled) +{ + if (unscaled->face) { + FT_Done_Face (unscaled->face); + unscaled->face = NULL; + unscaled->have_scale = FALSE; + + font_map->num_open_faces--; + } +} + +static cairo_status_t +_cairo_ft_unscaled_font_map_create (void) +{ + cairo_ft_unscaled_font_map_t *font_map; + + /* This function is only intended to be called from + * _cairo_ft_unscaled_font_map_lock. So we'll crash if we can + * detect some other call path. */ + assert (cairo_ft_unscaled_font_map == NULL); + + font_map = _cairo_calloc (sizeof (cairo_ft_unscaled_font_map_t)); + if (unlikely (font_map == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + font_map->hash_table = + _cairo_hash_table_create (_cairo_ft_unscaled_font_keys_equal); + + if (unlikely (font_map->hash_table == NULL)) + goto FAIL; + + if (unlikely (FT_Init_FreeType (&font_map->ft_library))) + goto FAIL; + + font_map->num_open_faces = 0; + + cairo_ft_unscaled_font_map = font_map; + return CAIRO_STATUS_SUCCESS; + +FAIL: + if (font_map->hash_table) + _cairo_hash_table_destroy (font_map->hash_table); + free (font_map); + + return _cairo_error (CAIRO_STATUS_NO_MEMORY); +} + + +static void +_cairo_ft_unscaled_font_map_pluck_entry (void *entry, void *closure) +{ + cairo_ft_unscaled_font_t *unscaled = entry; + cairo_ft_unscaled_font_map_t *font_map = closure; + + _cairo_hash_table_remove (font_map->hash_table, + &unscaled->base.hash_entry); + + if (! unscaled->from_face) + _font_map_release_face_lock_held (font_map, unscaled); + + _cairo_ft_unscaled_font_fini (unscaled); + free (unscaled); +} + +static void +_cairo_ft_unscaled_font_map_destroy (void) +{ + cairo_ft_unscaled_font_map_t *font_map; + + CAIRO_MUTEX_LOCK (_cairo_ft_unscaled_font_map_mutex); + font_map = cairo_ft_unscaled_font_map; + cairo_ft_unscaled_font_map = NULL; + CAIRO_MUTEX_UNLOCK (_cairo_ft_unscaled_font_map_mutex); + + if (font_map != NULL) { + _cairo_hash_table_foreach (font_map->hash_table, + _cairo_ft_unscaled_font_map_pluck_entry, + font_map); + assert (font_map->num_open_faces == 0); + + FT_Done_FreeType (font_map->ft_library); + + _cairo_hash_table_destroy (font_map->hash_table); + + free (font_map); + } +} + +static cairo_ft_unscaled_font_map_t * +_cairo_ft_unscaled_font_map_lock (void) +{ + CAIRO_MUTEX_INITIALIZE (); + + CAIRO_MUTEX_LOCK (_cairo_ft_unscaled_font_map_mutex); + + if (unlikely (cairo_ft_unscaled_font_map == NULL)) { + if (unlikely (_cairo_ft_unscaled_font_map_create ())) { + CAIRO_MUTEX_UNLOCK (_cairo_ft_unscaled_font_map_mutex); + return NULL; + } + } + + return cairo_ft_unscaled_font_map; +} + +static void +_cairo_ft_unscaled_font_map_unlock (void) +{ + CAIRO_MUTEX_UNLOCK (_cairo_ft_unscaled_font_map_mutex); +} + +static void +_cairo_ft_unscaled_font_init_key (cairo_ft_unscaled_font_t *key, + cairo_bool_t from_face, + char *filename, + int id, + FT_Face face) +{ + uintptr_t hash; + + key->from_face = from_face; + key->filename = filename; + key->id = id; + key->face = face; + + hash = _cairo_hash_string (filename); + /* the constants are just arbitrary primes */ + hash += ((uintptr_t) id) * 1607; + hash += ((uintptr_t) face) * 2137; + + key->base.hash_entry.hash = hash; +} + +/** + * _cairo_ft_unscaled_font_init: + * + * Initialize a #cairo_ft_unscaled_font_t. + * + * There are two basic flavors of #cairo_ft_unscaled_font_t, one + * created from an FT_Face and the other created from a filename/id + * pair. These two flavors are identified as from_face and !from_face. + * + * To initialize a from_face font, pass filename==%NULL, id=0 and the + * desired face. + * + * To initialize a !from_face font, pass the filename/id as desired + * and face==%NULL. + * + * Note that the code handles these two flavors in very distinct + * ways. For example there is a hash_table mapping + * filename/id->#cairo_unscaled_font_t in the !from_face case, but no + * parallel in the from_face case, (where the calling code would have + * to do its own mapping to ensure similar sharing). + **/ +static cairo_status_t +_cairo_ft_unscaled_font_init (cairo_ft_unscaled_font_t *unscaled, + cairo_bool_t from_face, + const char *filename, + int id, + FT_Face face) +{ + _cairo_unscaled_font_init (&unscaled->base, + &cairo_ft_unscaled_font_backend); + + unscaled->variations = NULL; + + if (from_face) { + FT_MM_Var *ft_mm_var; + unscaled->from_face = TRUE; + _cairo_ft_unscaled_font_init_key (unscaled, TRUE, NULL, id, face); + + + unscaled->have_color = FT_HAS_COLOR (face) != 0; + unscaled->have_color_set = TRUE; + if (FT_Get_MM_Var (face, &ft_mm_var) == 0) { + unscaled->variations = _cairo_calloc_ab (ft_mm_var->num_axis, sizeof (FT_Fixed)); + if (unscaled->variations) + FT_Get_Var_Design_Coordinates (face, ft_mm_var->num_axis, unscaled->variations); + FT_Done_MM_Var (face->glyph->library, ft_mm_var); + } + } else { + char *filename_copy; + + unscaled->from_face = FALSE; + unscaled->face = NULL; + + filename_copy = strdup (filename); + if (unlikely (filename_copy == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_ft_unscaled_font_init_key (unscaled, FALSE, filename_copy, id, NULL); + + unscaled->have_color_set = FALSE; + } + + unscaled->have_scale = FALSE; + CAIRO_MUTEX_INIT (unscaled->mutex); + unscaled->lock_count = 0; + + unscaled->faces = NULL; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * _cairo_ft_unscaled_font_fini: + * + * Free all data associated with a #cairo_ft_unscaled_font_t. + * + * CAUTION: The unscaled->face field must be %NULL before calling this + * function. This is because the #cairo_ft_unscaled_font_t_map keeps a + * count of these faces (font_map->num_open_faces) so it maintains the + * unscaled->face field while it has its lock held. See + * _font_map_release_face_lock_held(). + **/ +static void +_cairo_ft_unscaled_font_fini (cairo_ft_unscaled_font_t *unscaled) +{ + assert (unscaled->face == NULL); + + free (unscaled->filename); + unscaled->filename = NULL; + + free (unscaled->variations); + + CAIRO_MUTEX_FINI (unscaled->mutex); +} + +static int +_cairo_ft_unscaled_font_keys_equal (const void *key_a, + const void *key_b) +{ + const cairo_ft_unscaled_font_t *unscaled_a = key_a; + const cairo_ft_unscaled_font_t *unscaled_b = key_b; + + if (unscaled_a->id == unscaled_b->id && + unscaled_a->from_face == unscaled_b->from_face) + { + if (unscaled_a->from_face) + return unscaled_a->face == unscaled_b->face; + + if (unscaled_a->filename == NULL && unscaled_b->filename == NULL) + return TRUE; + else if (unscaled_a->filename == NULL || unscaled_b->filename == NULL) + return FALSE; + else + return (strcmp (unscaled_a->filename, unscaled_b->filename) == 0); + } + + return FALSE; +} + +/* Finds or creates a #cairo_ft_unscaled_font_t for the filename/id from + * pattern. Returns a new reference to the unscaled font. + */ +static cairo_status_t +_cairo_ft_unscaled_font_create_internal (cairo_bool_t from_face, + char *filename, + int id, + FT_Face font_face, + cairo_ft_unscaled_font_t **out) +{ + cairo_ft_unscaled_font_t key, *unscaled; + cairo_ft_unscaled_font_map_t *font_map; + cairo_status_t status; + + font_map = _cairo_ft_unscaled_font_map_lock (); + if (unlikely (font_map == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_ft_unscaled_font_init_key (&key, from_face, filename, id, font_face); + + /* Return existing unscaled font if it exists in the hash table. */ + unscaled = _cairo_hash_table_lookup (font_map->hash_table, + &key.base.hash_entry); + if (unscaled != NULL) { + _cairo_unscaled_font_reference (&unscaled->base); + goto DONE; + } + + /* Otherwise create it and insert into hash table. */ + unscaled = _cairo_calloc (sizeof (cairo_ft_unscaled_font_t)); + if (unlikely (unscaled == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto UNWIND_FONT_MAP_LOCK; + } + + status = _cairo_ft_unscaled_font_init (unscaled, from_face, filename, id, font_face); + if (unlikely (status)) + goto UNWIND_UNSCALED_MALLOC; + + assert (unscaled->base.hash_entry.hash == key.base.hash_entry.hash); + status = _cairo_hash_table_insert (font_map->hash_table, + &unscaled->base.hash_entry); + if (unlikely (status)) + goto UNWIND_UNSCALED_FONT_INIT; + +DONE: + _cairo_ft_unscaled_font_map_unlock (); + *out = unscaled; + return CAIRO_STATUS_SUCCESS; + +UNWIND_UNSCALED_FONT_INIT: + _cairo_ft_unscaled_font_fini (unscaled); +UNWIND_UNSCALED_MALLOC: + free (unscaled); +UNWIND_FONT_MAP_LOCK: + _cairo_ft_unscaled_font_map_unlock (); + return status; +} + + +#if CAIRO_HAS_FC_FONT +static cairo_status_t +_cairo_ft_unscaled_font_create_for_pattern (FcPattern *pattern, + cairo_ft_unscaled_font_t **out) +{ + FT_Face font_face = NULL; + char *filename = NULL; + int id = 0; + FcResult ret; + + ret = FcPatternGetFTFace (pattern, FC_FT_FACE, 0, &font_face); + if (ret == FcResultMatch) + goto DONE; + if (ret == FcResultOutOfMemory) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + ret = FcPatternGetString (pattern, FC_FILE, 0, (FcChar8 **) &filename); + if (ret == FcResultOutOfMemory) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + if (ret == FcResultMatch) { + if (access (filename, R_OK) == 0) { + /* If FC_INDEX is not set, we just use 0 */ + ret = FcPatternGetInteger (pattern, FC_INDEX, 0, &id); + if (ret == FcResultOutOfMemory) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + goto DONE; + } else + return _cairo_error (CAIRO_STATUS_FILE_NOT_FOUND); + } + + /* The pattern contains neither a face nor a filename, resolve it later. */ + *out = NULL; + return CAIRO_STATUS_SUCCESS; + +DONE: + return _cairo_ft_unscaled_font_create_internal (font_face != NULL, + filename, id, font_face, + out); +} +#endif + +static cairo_status_t +_cairo_ft_unscaled_font_create_from_face (FT_Face face, + cairo_ft_unscaled_font_t **out) +{ + return _cairo_ft_unscaled_font_create_internal (TRUE, NULL, face->face_index, face, out); +} + +static cairo_bool_t +_cairo_ft_unscaled_font_destroy (void *abstract_font) +{ + cairo_ft_unscaled_font_t *unscaled = abstract_font; + cairo_ft_unscaled_font_map_t *font_map; + + font_map = _cairo_ft_unscaled_font_map_lock (); + /* All created objects must have been mapped in the font map. */ + assert (font_map != NULL); + + if (! _cairo_reference_count_dec_and_test (&unscaled->base.ref_count)) { + /* somebody recreated the font whilst we waited for the lock */ + _cairo_ft_unscaled_font_map_unlock (); + return FALSE; + } + + _cairo_hash_table_remove (font_map->hash_table, + &unscaled->base.hash_entry); + + if (unscaled->from_face) { + /* See comments in _ft_font_face_destroy about the "zombie" state + * for a _ft_font_face. + */ + if (unscaled->faces && unscaled->faces->unscaled == NULL) { + assert (unscaled->faces->next == NULL); + cairo_font_face_destroy (&unscaled->faces->base); + } + } else { + _font_map_release_face_lock_held (font_map, unscaled); + } + unscaled->face = NULL; + + _cairo_ft_unscaled_font_map_unlock (); + + _cairo_ft_unscaled_font_fini (unscaled); + return TRUE; +} + +static cairo_bool_t +_has_unlocked_face (const void *entry) +{ + const cairo_ft_unscaled_font_t *unscaled = entry; + + return (!unscaled->from_face && unscaled->lock_count == 0 && unscaled->face); +} + +/* Ensures that an unscaled font has a face object. If we exceed + * MAX_OPEN_FACES, try to close some. + * + * This differs from _cairo_ft_scaled_font_lock_face in that it doesn't + * set the scale on the face, but just returns it at the last scale. + */ +static cairo_warn FT_Face +_cairo_ft_unscaled_font_lock_face (cairo_ft_unscaled_font_t *unscaled) +{ + cairo_ft_unscaled_font_map_t *font_map; + FT_Face face = NULL; + FT_Error error; + + CAIRO_MUTEX_LOCK (unscaled->mutex); + unscaled->lock_count++; + + if (unscaled->face) + return unscaled->face; + + /* If this unscaled font was created from an FT_Face then we just + * returned it above. */ + assert (!unscaled->from_face); + + font_map = _cairo_ft_unscaled_font_map_lock (); + { + assert (font_map != NULL); + + while (font_map->num_open_faces >= MAX_OPEN_FACES) + { + cairo_ft_unscaled_font_t *entry; + + entry = _cairo_hash_table_random_entry (font_map->hash_table, + _has_unlocked_face); + if (entry == NULL) + break; + + _font_map_release_face_lock_held (font_map, entry); + } + } + _cairo_ft_unscaled_font_map_unlock (); + + error = FT_New_Face (font_map->ft_library, + unscaled->filename, + unscaled->id, + &face); + if (error) + { + unscaled->lock_count--; + CAIRO_MUTEX_UNLOCK (unscaled->mutex); + _cairo_error_throw (_cairo_ft_to_cairo_error (error)); + return NULL; + } + + unscaled->face = face; + + unscaled->have_color = FT_HAS_COLOR (face) != 0; + unscaled->have_color_set = TRUE; + + font_map->num_open_faces++; + + return face; +} + + +/* Unlock unscaled font locked with _cairo_ft_unscaled_font_lock_face + */ +static void +_cairo_ft_unscaled_font_unlock_face (cairo_ft_unscaled_font_t *unscaled) +{ + assert (unscaled->lock_count > 0); + + unscaled->lock_count--; + + CAIRO_MUTEX_UNLOCK (unscaled->mutex); +} + + +static cairo_status_t +_compute_transform (cairo_ft_font_transform_t *sf, + cairo_matrix_t *scale, + cairo_ft_unscaled_font_t *unscaled) +{ + cairo_status_t status; + double x_scale, y_scale; + cairo_matrix_t normalized = *scale; + + /* The font matrix has x and y "scale" components which we extract and + * use as character scale values. These influence the way freetype + * chooses hints, as well as selecting different bitmaps in + * hand-rendered fonts. We also copy the normalized matrix to + * freetype's transformation. + */ + + status = _cairo_matrix_compute_basis_scale_factors (scale, + &x_scale, &y_scale, + 1); + if (unlikely (status)) + return status; + + /* FreeType docs say this about x_scale and y_scale: + * "A character width or height smaller than 1pt is set to 1pt;" + * So, we cap them from below at 1.0 and let the FT transform + * take care of sub-1.0 scaling. */ + if (x_scale < 1.0) + x_scale = 1.0; + if (y_scale < 1.0) + y_scale = 1.0; + + if (unscaled && (unscaled->face->face_flags & FT_FACE_FLAG_SCALABLE) == 0) { + double min_distance = DBL_MAX; + cairo_bool_t magnify = TRUE; + int i; + double best_x_size = 0; + double best_y_size = 0; + + for (i = 0; i < unscaled->face->num_fixed_sizes; i++) { + double x_size = unscaled->face->available_sizes[i].x_ppem / 64.; + double y_size = unscaled->face->available_sizes[i].y_ppem / 64.; + double distance = y_size - y_scale; + + /* + * distance is positive if current strike is larger than desired + * size, and negative if smaller. + * + * We like to prefer down-scaling to upscaling. + */ + + if ((magnify && distance >= 0) || fabs (distance) <= min_distance) { + magnify = distance < 0; + min_distance = fabs (distance); + best_x_size = x_size; + best_y_size = y_size; + } + } + + x_scale = best_x_size; + y_scale = best_y_size; + } + + sf->x_scale = x_scale; + sf->y_scale = y_scale; + + cairo_matrix_scale (&normalized, 1.0 / x_scale, 1.0 / y_scale); + + _cairo_matrix_get_affine (&normalized, + &sf->shape[0][0], &sf->shape[0][1], + &sf->shape[1][0], &sf->shape[1][1], + NULL, NULL); + + return CAIRO_STATUS_SUCCESS; +} + +/* Temporarily scales an unscaled font to the give scale. We catch + * scaling to the same size, since changing a FT_Face is expensive. + */ +static cairo_status_t +_cairo_ft_unscaled_font_set_scale (cairo_ft_unscaled_font_t *unscaled, + cairo_matrix_t *scale) +{ + cairo_status_t status; + cairo_ft_font_transform_t sf; + FT_Matrix mat; + FT_Error error; + + assert (unscaled->face != NULL); + + if (unscaled->have_scale && + scale->xx == unscaled->current_scale.xx && + scale->yx == unscaled->current_scale.yx && + scale->xy == unscaled->current_scale.xy && + scale->yy == unscaled->current_scale.yy) + return CAIRO_STATUS_SUCCESS; + + unscaled->have_scale = TRUE; + unscaled->current_scale = *scale; + + status = _compute_transform (&sf, scale, unscaled); + if (unlikely (status)) + return status; + + unscaled->x_scale = sf.x_scale; + unscaled->y_scale = sf.y_scale; + + mat.xx = DOUBLE_TO_16_16(sf.shape[0][0]); + mat.yx = - DOUBLE_TO_16_16(sf.shape[0][1]); + mat.xy = - DOUBLE_TO_16_16(sf.shape[1][0]); + mat.yy = DOUBLE_TO_16_16(sf.shape[1][1]); + + unscaled->have_shape = (mat.xx != 0x10000 || + mat.yx != 0x00000 || + mat.xy != 0x00000 || + mat.yy != 0x10000); + + unscaled->Current_Shape = mat; + cairo_matrix_init (&unscaled->current_shape, + sf.shape[0][0], sf.shape[0][1], + sf.shape[1][0], sf.shape[1][1], + 0.0, 0.0); + + FT_Set_Transform(unscaled->face, &mat, NULL); + + error = FT_Set_Char_Size (unscaled->face, + sf.x_scale * 64.0 + .5, + sf.y_scale * 64.0 + .5, + 0, 0); + if (error) + return _cairo_error (_cairo_ft_to_cairo_error (error)); + + return CAIRO_STATUS_SUCCESS; +} + +/* we sometimes need to convert the glyph bitmap in a FT_GlyphSlot + * into a different format. For example, we want to convert a + * FT_PIXEL_MODE_LCD or FT_PIXEL_MODE_LCD_V bitmap into a 32-bit + * ARGB or ABGR bitmap. + * + * this function prepares a target descriptor for this operation. + * + * input :: target bitmap descriptor. The function will set its + * 'width', 'rows' and 'pitch' fields, and only these + * + * slot :: the glyph slot containing the source bitmap. this + * function assumes that slot->format == FT_GLYPH_FORMAT_BITMAP + * + * mode :: the requested final rendering mode. supported values are + * MONO, NORMAL (i.e. gray), LCD and LCD_V + * + * the function returns the size in bytes of the corresponding buffer, + * it's up to the caller to allocate the corresponding memory block + * before calling _fill_xrender_bitmap + * + * it also returns -1 in case of error (e.g. incompatible arguments, + * like trying to convert a gray bitmap into a monochrome one) + */ +static int +_compute_xrender_bitmap_size(FT_Bitmap *target, + FT_GlyphSlot slot, + FT_Render_Mode mode) +{ + FT_Bitmap *ftbit; + int width, height, pitch; + + if (slot->format != FT_GLYPH_FORMAT_BITMAP) + return -1; + + /* compute the size of the final bitmap */ + ftbit = &slot->bitmap; + + width = ftbit->width; + height = ftbit->rows; + pitch = (width + 3) & ~3; + + switch (ftbit->pixel_mode) { + case FT_PIXEL_MODE_MONO: + if (mode == FT_RENDER_MODE_MONO) { + pitch = (((width + 31) & ~31) >> 3); + break; + } + /* fall-through */ + + case FT_PIXEL_MODE_GRAY: + if (mode == FT_RENDER_MODE_LCD || + mode == FT_RENDER_MODE_LCD_V) + { + /* each pixel is replicated into a 32-bit ARGB value */ + pitch = width * 4; + } + break; + + case FT_PIXEL_MODE_LCD: + if (mode != FT_RENDER_MODE_LCD) + return -1; + + /* horz pixel triplets are packed into 32-bit ARGB values */ + width /= 3; + pitch = width * 4; + break; + + case FT_PIXEL_MODE_LCD_V: + if (mode != FT_RENDER_MODE_LCD_V) + return -1; + + /* vert pixel triplets are packed into 32-bit ARGB values */ + height /= 3; + pitch = width * 4; + break; + + case FT_PIXEL_MODE_BGRA: + /* each pixel is replicated into a 32-bit ARGB value */ + pitch = width * 4; + break; + + default: /* unsupported source format */ + return -1; + } + + target->width = width; + target->rows = height; + target->pitch = pitch; + target->buffer = NULL; + + return pitch * height; +} + +/* this functions converts the glyph bitmap found in a FT_GlyphSlot + * into a different format (see _compute_xrender_bitmap_size) + * + * you should call this function after _compute_xrender_bitmap_size + * + * target :: target bitmap descriptor. Note that its 'buffer' pointer + * must point to memory allocated by the caller + * + * slot :: the glyph slot containing the source bitmap + * + * mode :: the requested final rendering mode + * + * bgr :: boolean, set if BGR or VBGR pixel ordering is needed + */ +static void +_fill_xrender_bitmap(FT_Bitmap *target, + FT_GlyphSlot slot, + FT_Render_Mode mode, + int bgr) +{ + FT_Bitmap *ftbit = &slot->bitmap; + unsigned char *srcLine = ftbit->buffer; + unsigned char *dstLine = target->buffer; + int src_pitch = ftbit->pitch; + int width = target->width; + int height = target->rows; + int pitch = target->pitch; + int subpixel; + int h; + + subpixel = (mode == FT_RENDER_MODE_LCD || + mode == FT_RENDER_MODE_LCD_V); + + if (src_pitch < 0) + srcLine -= src_pitch * (ftbit->rows - 1); + + target->pixel_mode = ftbit->pixel_mode; + + switch (ftbit->pixel_mode) { + case FT_PIXEL_MODE_MONO: + if (subpixel) { + /* convert mono to ARGB32 values */ + + for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) { + int x; + + for (x = 0; x < width; x++) { + if (srcLine[(x >> 3)] & (0x80 >> (x & 7))) + ((unsigned int *) dstLine)[x] = 0xffffffffU; + } + } + target->pixel_mode = FT_PIXEL_MODE_LCD; + + } else if (mode == FT_RENDER_MODE_NORMAL) { + /* convert mono to 8-bit gray */ + + for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) { + int x; + + for (x = 0; x < width; x++) { + if (srcLine[(x >> 3)] & (0x80 >> (x & 7))) + dstLine[x] = 0xff; + } + } + target->pixel_mode = FT_PIXEL_MODE_GRAY; + + } else { + /* copy mono to mono */ + + int bytes = (width + 7) >> 3; + + for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) + memcpy (dstLine, srcLine, bytes); + } + break; + + case FT_PIXEL_MODE_GRAY: + if (subpixel) { + /* convert gray to ARGB32 values */ + + for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) { + int x; + unsigned int *dst = (unsigned int *) dstLine; + + for (x = 0; x < width; x++) { + unsigned int pix = srcLine[x]; + + pix |= (pix << 8); + pix |= (pix << 16); + + dst[x] = pix; + } + } + target->pixel_mode = FT_PIXEL_MODE_LCD; + } else { + /* copy gray into gray */ + + for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) + memcpy (dstLine, srcLine, width); + } + break; + + case FT_PIXEL_MODE_LCD: + if (!bgr) { + /* convert horizontal RGB into ARGB32 */ + + for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) { + int x; + unsigned char *src = srcLine; + unsigned int *dst = (unsigned int *) dstLine; + + for (x = 0; x < width; x++, src += 3) { + unsigned int pix; + + pix = ((unsigned int)src[0] << 16) | + ((unsigned int)src[1] << 8) | + ((unsigned int)src[2] ) | + ((unsigned int)src[1] << 24) ; + + dst[x] = pix; + } + } + } else { + /* convert horizontal BGR into ARGB32 */ + + for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) { + + int x; + unsigned char *src = srcLine; + unsigned int *dst = (unsigned int *) dstLine; + + for (x = 0; x < width; x++, src += 3) { + unsigned int pix; + + pix = ((unsigned int)src[2] << 16) | + ((unsigned int)src[1] << 8) | + ((unsigned int)src[0] ) | + ((unsigned int)src[1] << 24) ; + + dst[x] = pix; + } + } + } + break; + + case FT_PIXEL_MODE_LCD_V: + /* convert vertical RGB into ARGB32 */ + if (!bgr) { + + for (h = height; h > 0; h--, srcLine += 3 * src_pitch, dstLine += pitch) { + int x; + unsigned char* src = srcLine; + unsigned int* dst = (unsigned int *) dstLine; + + for (x = 0; x < width; x++, src += 1) { + unsigned int pix; + pix = ((unsigned int)src[0] << 16) | + ((unsigned int)src[src_pitch] << 8) | + ((unsigned int)src[src_pitch*2] ) | + ((unsigned int)src[src_pitch] << 24) ; + dst[x] = pix; + } + } + } else { + + for (h = height; h > 0; h--, srcLine += 3*src_pitch, dstLine += pitch) { + int x; + unsigned char *src = srcLine; + unsigned int *dst = (unsigned int *) dstLine; + + for (x = 0; x < width; x++, src += 1) { + unsigned int pix; + + pix = ((unsigned int)src[src_pitch * 2] << 16) | + ((unsigned int)src[src_pitch] << 8) | + ((unsigned int)src[0] ) | + ((unsigned int)src[src_pitch] << 24) ; + + dst[x] = pix; + } + } + } + break; + + case FT_PIXEL_MODE_BGRA: + for (h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch) + memcpy (dstLine, srcLine, (size_t)width * 4); + break; + + default: + assert (0); + } +} + + +/* Fills in val->image with an image surface created from @bitmap + */ +static cairo_status_t +_get_bitmap_surface (FT_Bitmap *bitmap, + FT_Library library, + cairo_bool_t own_buffer, + cairo_font_options_t *font_options, + cairo_image_surface_t **surface) +{ + unsigned int width, height; + unsigned char *data; + int format = CAIRO_FORMAT_A8; + int stride; + cairo_image_surface_t *image; + cairo_bool_t component_alpha = FALSE; + + width = bitmap->width; + height = bitmap->rows; + + if (width == 0 || height == 0) { + *surface = (cairo_image_surface_t *) + cairo_image_surface_create_for_data (NULL, format, 0, 0, 0); + return (*surface)->base.status; + } + + switch (bitmap->pixel_mode) { + case FT_PIXEL_MODE_MONO: + stride = (((width + 31) & ~31) >> 3); + if (own_buffer) { + data = bitmap->buffer; + assert (stride == bitmap->pitch); + } else { + data = _cairo_malloc_ab (height, stride); + if (!data) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (stride == bitmap->pitch) { + memcpy (data, bitmap->buffer, (size_t)stride * height); + } else { + int i; + unsigned char *source, *dest; + + source = bitmap->buffer; + dest = data; + for (i = height; i; i--) { + memcpy (dest, source, bitmap->pitch); + memset (dest + bitmap->pitch, '\0', stride - bitmap->pitch); + + source += bitmap->pitch; + dest += stride; + } + } + } + +#ifndef WORDS_BIGENDIAN + { + uint8_t *d = data; + int count = stride * height; + + while (count--) { + *d = CAIRO_BITSWAP8 (*d); + d++; + } + } +#endif + format = CAIRO_FORMAT_A1; + break; + + case FT_PIXEL_MODE_LCD: + case FT_PIXEL_MODE_LCD_V: + case FT_PIXEL_MODE_GRAY: + if (font_options->antialias != CAIRO_ANTIALIAS_SUBPIXEL || + bitmap->pixel_mode == FT_PIXEL_MODE_GRAY) + { + stride = bitmap->pitch; + + /* We don't support stride not multiple of 4. */ + if (stride & 3) + { + assert (!own_buffer); + goto convert; + } + + if (own_buffer) { + data = bitmap->buffer; + } else { + data = _cairo_malloc_ab (height, stride); + if (!data) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memcpy (data, bitmap->buffer, (size_t)stride * height); + } + + format = CAIRO_FORMAT_A8; + } else { + data = bitmap->buffer; + stride = bitmap->pitch; + format = CAIRO_FORMAT_ARGB32; + component_alpha = TRUE; + } + break; + case FT_PIXEL_MODE_BGRA: + stride = width * 4; + if (own_buffer) { + data = bitmap->buffer; + } else { + data = _cairo_malloc_ab (height, stride); + if (!data) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memcpy (data, bitmap->buffer, (size_t)stride * height); + } + + if (!_cairo_is_little_endian ()) + { + /* Byteswap. */ + unsigned int i, count = height * width; + uint32_t *p = (uint32_t *) data; + for (i = 0; i < count; i++) + p[i] = bswap_32 (p[i]); + } + format = CAIRO_FORMAT_ARGB32; + break; + case FT_PIXEL_MODE_GRAY2: + case FT_PIXEL_MODE_GRAY4: + convert: + if (!own_buffer && library) + { + /* This is pretty much the only case that we can get in here. */ + /* Convert to 8bit grayscale. */ + + FT_Bitmap tmp; + FT_Int align; + FT_Error error; + + format = CAIRO_FORMAT_A8; + + align = cairo_format_stride_for_width (format, bitmap->width); + + FT_Bitmap_New( &tmp ); + + error = FT_Bitmap_Convert( library, bitmap, &tmp, align ); + if (error) + return _cairo_error (_cairo_ft_to_cairo_error (error)); + + FT_Bitmap_Done( library, bitmap ); + *bitmap = tmp; + + stride = bitmap->pitch; + data = _cairo_malloc_ab (height, stride); + if (!data) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (bitmap->num_grays != 256) + { + unsigned int x, y; + unsigned int mul = 255 / (bitmap->num_grays - 1); + FT_Byte *p = bitmap->buffer; + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) + p[x] *= mul; + p += bitmap->pitch; + } + } + + memcpy (data, bitmap->buffer, (size_t)stride * height); + break; + } + /* fall through */ + /* These could be triggered by very rare types of TrueType fonts */ + default: + if (own_buffer) + free (bitmap->buffer); + return _cairo_error (CAIRO_STATUS_INVALID_FORMAT); + } + + /* XXX */ + *surface = image = (cairo_image_surface_t *) + cairo_image_surface_create_for_data (data, + format, + width, height, stride); + if (image->base.status) { + free (data); + return (*surface)->base.status; + } + + if (component_alpha) + pixman_image_set_component_alpha (image->pixman_image, TRUE); + + _cairo_image_surface_assume_ownership_of_data (image); + + _cairo_debug_check_image_surface_is_defined (&image->base); + + return CAIRO_STATUS_SUCCESS; +} + +/* Converts an outline FT_GlyphSlot into an image + * + * This could go through _render_glyph_bitmap as well, letting + * FreeType convert the outline to a bitmap, but doing it ourselves + * has two minor advantages: first, we save a copy of the bitmap + * buffer: we can directly use the buffer that FreeType renders + * into. + * + * Second, it may help when we add support for subpixel + * rendering: the Xft code does it this way. (Keith thinks that + * it may also be possible to get the subpixel rendering with + * FT_Render_Glyph: something worth looking into in more detail + * when we add subpixel support. If so, we may want to eliminate + * this version of the code path entirely. + */ +static cairo_status_t +_render_glyph_outline (FT_Face face, + cairo_font_options_t *font_options, + cairo_image_surface_t **surface) +{ + cairo_subpixel_order_t rgba = CAIRO_SUBPIXEL_ORDER_DEFAULT; + int lcd_filter = FT_LCD_FILTER_DEFAULT; + FT_GlyphSlot glyphslot = face->glyph; + FT_Outline *outline = &glyphslot->outline; + FT_Bitmap bitmap; + FT_BBox cbox; + unsigned int width, height; + cairo_status_t status; + FT_Error error; + FT_Library library = glyphslot->library; + FT_Render_Mode render_mode = FT_RENDER_MODE_NORMAL; + + switch (font_options->antialias) { + case CAIRO_ANTIALIAS_NONE: + render_mode = FT_RENDER_MODE_MONO; + break; + + case CAIRO_ANTIALIAS_SUBPIXEL: + case CAIRO_ANTIALIAS_BEST: + switch (font_options->subpixel_order) { + case CAIRO_SUBPIXEL_ORDER_DEFAULT: + case CAIRO_SUBPIXEL_ORDER_RGB: + case CAIRO_SUBPIXEL_ORDER_BGR: + render_mode = FT_RENDER_MODE_LCD; + break; + + case CAIRO_SUBPIXEL_ORDER_VRGB: + case CAIRO_SUBPIXEL_ORDER_VBGR: + render_mode = FT_RENDER_MODE_LCD_V; + break; + } + + switch (font_options->lcd_filter) { + case CAIRO_LCD_FILTER_NONE: + lcd_filter = FT_LCD_FILTER_NONE; + break; + case CAIRO_LCD_FILTER_INTRA_PIXEL: + lcd_filter = FT_LCD_FILTER_LEGACY; + break; + case CAIRO_LCD_FILTER_FIR3: + lcd_filter = FT_LCD_FILTER_LIGHT; + break; + case CAIRO_LCD_FILTER_DEFAULT: + case CAIRO_LCD_FILTER_FIR5: + lcd_filter = FT_LCD_FILTER_DEFAULT; + break; + } + + break; + + case CAIRO_ANTIALIAS_DEFAULT: + case CAIRO_ANTIALIAS_GRAY: + case CAIRO_ANTIALIAS_GOOD: + case CAIRO_ANTIALIAS_FAST: + render_mode = FT_RENDER_MODE_NORMAL; + } + + FT_Outline_Get_CBox (outline, &cbox); + + cbox.xMin &= -64; + cbox.yMin &= -64; + cbox.xMax = (cbox.xMax + 63) & -64; + cbox.yMax = (cbox.yMax + 63) & -64; + + width = (unsigned int) ((cbox.xMax - cbox.xMin) >> 6); + height = (unsigned int) ((cbox.yMax - cbox.yMin) >> 6); + + if (width * height == 0) { + cairo_format_t format; + /* Looks like fb handles zero-sized images just fine */ + switch (render_mode) { + case FT_RENDER_MODE_MONO: + format = CAIRO_FORMAT_A1; + break; + case FT_RENDER_MODE_LCD: + case FT_RENDER_MODE_LCD_V: + format= CAIRO_FORMAT_ARGB32; + break; + case FT_RENDER_MODE_LIGHT: + case FT_RENDER_MODE_NORMAL: + case FT_RENDER_MODE_MAX: +#if HAVE_FT_RENDER_MODE_SDF + case FT_RENDER_MODE_SDF: +#endif + default: + format = CAIRO_FORMAT_A8; + break; + } + + (*surface) = (cairo_image_surface_t *) + cairo_image_surface_create_for_data (NULL, format, 0, 0, 0); + pixman_image_set_component_alpha ((*surface)->pixman_image, TRUE); + if ((*surface)->base.status) + return (*surface)->base.status; + } else { + + int bitmap_size; + + switch (render_mode) { + case FT_RENDER_MODE_LCD: + if (font_options->subpixel_order == CAIRO_SUBPIXEL_ORDER_BGR) + rgba = CAIRO_SUBPIXEL_ORDER_BGR; + else + rgba = CAIRO_SUBPIXEL_ORDER_RGB; + break; + + case FT_RENDER_MODE_LCD_V: + if (font_options->subpixel_order == CAIRO_SUBPIXEL_ORDER_VBGR) + rgba = CAIRO_SUBPIXEL_ORDER_VBGR; + else + rgba = CAIRO_SUBPIXEL_ORDER_VRGB; + break; + + case FT_RENDER_MODE_MONO: + case FT_RENDER_MODE_LIGHT: + case FT_RENDER_MODE_NORMAL: + case FT_RENDER_MODE_MAX: +#if HAVE_FT_RENDER_MODE_SDF + case FT_RENDER_MODE_SDF: +#endif + default: + break; + } + + FT_Library_SetLcdFilter (library, lcd_filter); + error = FT_Render_Glyph (face->glyph, render_mode); + + FT_Library_SetLcdFilter (library, FT_LCD_FILTER_NONE); + if (error) + return _cairo_error (_cairo_ft_to_cairo_error (error)); + + bitmap_size = _compute_xrender_bitmap_size (&bitmap, + face->glyph, + render_mode); + if (bitmap_size < 0) + return _cairo_error (CAIRO_STATUS_INVALID_FORMAT); + + bitmap.buffer = _cairo_calloc (bitmap_size); + if (bitmap.buffer == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _fill_xrender_bitmap (&bitmap, face->glyph, render_mode, + (rgba == CAIRO_SUBPIXEL_ORDER_BGR || rgba == CAIRO_SUBPIXEL_ORDER_VBGR)); + + /* Note: + * _get_bitmap_surface will free bitmap.buffer if there is an error + */ + status = _get_bitmap_surface (&bitmap, NULL, TRUE, font_options, surface); + if (unlikely (status)) + return status; + + /* Note: the font's coordinate system is upside down from ours, so the + * Y coordinate of the control box needs to be negated. Moreover, device + * offsets are position of glyph origin relative to top left while xMin + * and yMax are offsets of top left relative to origin. Another negation. + */ + cairo_surface_set_device_offset (&(*surface)->base, + (double)-glyphslot->bitmap_left, + (double)+glyphslot->bitmap_top); + } + + return CAIRO_STATUS_SUCCESS; +} + +/* Converts a bitmap (or other) FT_GlyphSlot into an image */ +static cairo_status_t +_render_glyph_bitmap (FT_Face face, + cairo_font_options_t *font_options, + cairo_image_surface_t **surface) +{ + FT_GlyphSlot glyphslot = face->glyph; + cairo_status_t status; + FT_Error error; + + /* According to the FreeType docs, glyphslot->format could be + * something other than FT_GLYPH_FORMAT_OUTLINE or + * FT_GLYPH_FORMAT_BITMAP. Calling FT_Render_Glyph gives FreeType + * the opportunity to convert such to + * bitmap. FT_GLYPH_FORMAT_COMPOSITE will not be encountered since + * we avoid the FT_LOAD_NO_RECURSE flag. + */ + error = FT_Render_Glyph (glyphslot, FT_RENDER_MODE_NORMAL); + /* XXX ignoring all other errors for now. They are not fatal, typically + * just a glyph-not-found. */ + if (error == FT_Err_Out_Of_Memory) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _get_bitmap_surface (&glyphslot->bitmap, + glyphslot->library, + FALSE, font_options, + surface); + if (unlikely (status)) + return status; + + /* + * Note: the font's coordinate system is upside down from ours, so the + * Y coordinate of the control box needs to be negated. Moreover, device + * offsets are position of glyph origin relative to top left while + * bitmap_left and bitmap_top are offsets of top left relative to origin. + * Another negation. + */ + cairo_surface_set_device_offset (&(*surface)->base, + -glyphslot->bitmap_left, + +glyphslot->bitmap_top); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_transform_glyph_bitmap (cairo_matrix_t * shape, + cairo_image_surface_t ** surface) +{ + cairo_matrix_t original_to_transformed; + cairo_matrix_t transformed_to_original; + cairo_image_surface_t *old_image; + cairo_surface_t *image; + double x[4], y[4]; + double origin_x, origin_y; + int orig_width, orig_height; + int i; + int x_min, y_min, x_max, y_max; + int width, height; + cairo_status_t status; + cairo_surface_pattern_t pattern; + + /* We want to compute a transform that takes the origin + * (device_x_offset, device_y_offset) to 0,0, then applies + * the "shape" portion of the font transform + */ + original_to_transformed = *shape; + + cairo_surface_get_device_offset (&(*surface)->base, &origin_x, &origin_y); + orig_width = (*surface)->width; + orig_height = (*surface)->height; + + cairo_matrix_translate (&original_to_transformed, + -origin_x, -origin_y); + + /* Find the bounding box of the original bitmap under that + * transform + */ + x[0] = 0; y[0] = 0; + x[1] = orig_width; y[1] = 0; + x[2] = orig_width; y[2] = orig_height; + x[3] = 0; y[3] = orig_height; + + for (i = 0; i < 4; i++) + cairo_matrix_transform_point (&original_to_transformed, + &x[i], &y[i]); + + x_min = floor (x[0]); y_min = floor (y[0]); + x_max = ceil (x[0]); y_max = ceil (y[0]); + + for (i = 1; i < 4; i++) { + if (x[i] < x_min) + x_min = floor (x[i]); + else if (x[i] > x_max) + x_max = ceil (x[i]); + if (y[i] < y_min) + y_min = floor (y[i]); + else if (y[i] > y_max) + y_max = ceil (y[i]); + } + + /* Adjust the transform so that the bounding box starts at 0,0 ... + * this gives our final transform from original bitmap to transformed + * bitmap. + */ + original_to_transformed.x0 -= x_min; + original_to_transformed.y0 -= y_min; + + /* Create the transformed bitmap */ + width = x_max - x_min; + height = y_max - y_min; + + transformed_to_original = original_to_transformed; + status = cairo_matrix_invert (&transformed_to_original); + if (unlikely (status)) + return status; + + if ((*surface)->format == CAIRO_FORMAT_ARGB32 && + !pixman_image_get_component_alpha ((*surface)->pixman_image)) + image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height); + else + image = cairo_image_surface_create (CAIRO_FORMAT_A8, width, height); + if (unlikely (image->status)) + return image->status; + + /* Draw the original bitmap transformed into the new bitmap + */ + _cairo_pattern_init_for_surface (&pattern, &(*surface)->base); + cairo_pattern_set_matrix (&pattern.base, &transformed_to_original); + + status = _cairo_surface_paint (image, + CAIRO_OPERATOR_SOURCE, + &pattern.base, + NULL); + + _cairo_pattern_fini (&pattern.base); + + if (unlikely (status)) { + cairo_surface_destroy (image); + return status; + } + + /* Now update the cache entry for the new bitmap, recomputing + * the origin based on the final transform. + */ + cairo_matrix_transform_point (&original_to_transformed, + &origin_x, &origin_y); + + old_image = (*surface); + (*surface) = (cairo_image_surface_t *)image; + + /* Note: we converted subpixel-rendered RGBA images to grayscale, + * so, no need to copy component alpha to new image. */ + + cairo_surface_destroy (&old_image->base); + + cairo_surface_set_device_offset (&(*surface)->base, + _cairo_lround (origin_x), + _cairo_lround (origin_y)); + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_unscaled_font_backend_t cairo_ft_unscaled_font_backend = { + _cairo_ft_unscaled_font_destroy, +#if 0 + _cairo_ft_unscaled_font_create_glyph +#endif +}; + +/* #cairo_ft_scaled_font_t */ + +typedef struct _cairo_ft_scaled_font { + cairo_scaled_font_t base; + cairo_ft_unscaled_font_t *unscaled; + cairo_ft_options_t ft_options; +} cairo_ft_scaled_font_t; + +static const cairo_scaled_font_backend_t _cairo_ft_scaled_font_backend; + +#if CAIRO_HAS_FC_FONT +/* The load flags passed to FT_Load_Glyph control aspects like hinting and + * antialiasing. Here we compute them from the fields of a FcPattern. + */ +static void +_get_pattern_ft_options (FcPattern *pattern, cairo_ft_options_t *ret) +{ + FcBool antialias, vertical_layout, hinting, autohint, bitmap, embolden; + cairo_ft_options_t ft_options; + int rgba; + int hintstyle; + char *variations; + + _cairo_font_options_init_default (&ft_options.base); + ft_options.load_flags = FT_LOAD_DEFAULT; + ft_options.synth_flags = 0; + + /* Check whether to force use of embedded bitmaps */ + if (FcPatternGetBool (pattern, + FC_EMBEDDED_BITMAP, 0, &bitmap) != FcResultMatch) + bitmap = FcFalse; + + /* disable antialiasing if requested */ + if (FcPatternGetBool (pattern, + FC_ANTIALIAS, 0, &antialias) != FcResultMatch) + antialias = FcTrue; + + if (antialias) { + cairo_subpixel_order_t subpixel_order; + int lcd_filter; + + /* disable hinting if requested */ + if (FcPatternGetBool (pattern, + FC_HINTING, 0, &hinting) != FcResultMatch) + hinting = FcTrue; + + if (FcPatternGetInteger (pattern, + FC_RGBA, 0, &rgba) != FcResultMatch) + rgba = FC_RGBA_UNKNOWN; + + switch (rgba) { + case FC_RGBA_RGB: + subpixel_order = CAIRO_SUBPIXEL_ORDER_RGB; + break; + case FC_RGBA_BGR: + subpixel_order = CAIRO_SUBPIXEL_ORDER_BGR; + break; + case FC_RGBA_VRGB: + subpixel_order = CAIRO_SUBPIXEL_ORDER_VRGB; + break; + case FC_RGBA_VBGR: + subpixel_order = CAIRO_SUBPIXEL_ORDER_VBGR; + break; + case FC_RGBA_UNKNOWN: + case FC_RGBA_NONE: + default: + subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT; + break; + } + + if (subpixel_order != CAIRO_SUBPIXEL_ORDER_DEFAULT) { + ft_options.base.subpixel_order = subpixel_order; + ft_options.base.antialias = CAIRO_ANTIALIAS_SUBPIXEL; + } + + if (FcPatternGetInteger (pattern, + FC_LCD_FILTER, 0, &lcd_filter) == FcResultMatch) + { + switch (lcd_filter) { + case FC_LCD_NONE: + ft_options.base.lcd_filter = CAIRO_LCD_FILTER_NONE; + break; + case FC_LCD_DEFAULT: + ft_options.base.lcd_filter = CAIRO_LCD_FILTER_FIR5; + break; + case FC_LCD_LIGHT: + ft_options.base.lcd_filter = CAIRO_LCD_FILTER_FIR3; + break; + case FC_LCD_LEGACY: + ft_options.base.lcd_filter = CAIRO_LCD_FILTER_INTRA_PIXEL; + break; + } + } + + if (FcPatternGetInteger (pattern, + FC_HINT_STYLE, 0, &hintstyle) != FcResultMatch) + hintstyle = FC_HINT_FULL; + + if (!hinting) + hintstyle = FC_HINT_NONE; + + switch (hintstyle) { + case FC_HINT_NONE: + ft_options.base.hint_style = CAIRO_HINT_STYLE_NONE; + break; + case FC_HINT_SLIGHT: + ft_options.base.hint_style = CAIRO_HINT_STYLE_SLIGHT; + break; + case FC_HINT_MEDIUM: + default: + ft_options.base.hint_style = CAIRO_HINT_STYLE_MEDIUM; + break; + case FC_HINT_FULL: + ft_options.base.hint_style = CAIRO_HINT_STYLE_FULL; + break; + } + + /* Force embedded bitmaps off if no hinting requested */ + if (ft_options.base.hint_style == CAIRO_HINT_STYLE_NONE) + bitmap = FcFalse; + + if (!bitmap) + ft_options.load_flags |= FT_LOAD_NO_BITMAP; + + } else { + ft_options.base.antialias = CAIRO_ANTIALIAS_NONE; + } + + /* force autohinting if requested */ + if (FcPatternGetBool (pattern, + FC_AUTOHINT, 0, &autohint) != FcResultMatch) + autohint = FcFalse; + + if (autohint) + ft_options.load_flags |= FT_LOAD_FORCE_AUTOHINT; + + if (FcPatternGetBool (pattern, + FC_VERTICAL_LAYOUT, 0, &vertical_layout) != FcResultMatch) + vertical_layout = FcFalse; + + if (vertical_layout) + ft_options.load_flags |= FT_LOAD_VERTICAL_LAYOUT; + + if (FcPatternGetBool (pattern, + FC_EMBOLDEN, 0, &embolden) != FcResultMatch) + embolden = FcFalse; + + if (embolden) + ft_options.synth_flags |= CAIRO_FT_SYNTHESIZE_BOLD; + + if (FcPatternGetString (pattern, FC_FONT_VARIATIONS, 0, (FcChar8 **) &variations) == FcResultMatch) { + ft_options.base.variations = strdup (variations); + } + + *ret = ft_options; +} +#endif + +static void +_cairo_ft_options_merge (cairo_ft_options_t *options, + cairo_ft_options_t *other) +{ + int load_flags = other->load_flags; + int load_target = FT_LOAD_TARGET_NORMAL; + + /* clear load target mode */ + load_flags &= ~(FT_LOAD_TARGET_(FT_LOAD_TARGET_MODE(other->load_flags))); + + if (load_flags & FT_LOAD_NO_HINTING) + other->base.hint_style = CAIRO_HINT_STYLE_NONE; + + if (other->base.antialias == CAIRO_ANTIALIAS_NONE || + options->base.antialias == CAIRO_ANTIALIAS_NONE) { + options->base.antialias = CAIRO_ANTIALIAS_NONE; + options->base.subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT; + } + + if (other->base.antialias == CAIRO_ANTIALIAS_SUBPIXEL && + options->base.antialias == CAIRO_ANTIALIAS_DEFAULT) { + options->base.antialias = CAIRO_ANTIALIAS_SUBPIXEL; + options->base.subpixel_order = other->base.subpixel_order; + } + + if (options->base.hint_style == CAIRO_HINT_STYLE_DEFAULT) + options->base.hint_style = other->base.hint_style; + + if (other->base.hint_style == CAIRO_HINT_STYLE_NONE) + options->base.hint_style = CAIRO_HINT_STYLE_NONE; + + if (options->base.lcd_filter == CAIRO_LCD_FILTER_DEFAULT) + options->base.lcd_filter = other->base.lcd_filter; + + if (other->base.lcd_filter == CAIRO_LCD_FILTER_NONE) + options->base.lcd_filter = CAIRO_LCD_FILTER_NONE; + + if (options->base.antialias == CAIRO_ANTIALIAS_NONE) { + if (options->base.hint_style == CAIRO_HINT_STYLE_NONE) + load_flags |= FT_LOAD_NO_HINTING; + else + load_target = FT_LOAD_TARGET_MONO; + load_flags |= FT_LOAD_MONOCHROME; + } else { + switch (options->base.hint_style) { + case CAIRO_HINT_STYLE_NONE: + load_flags |= FT_LOAD_NO_HINTING; + break; + case CAIRO_HINT_STYLE_SLIGHT: + load_target = FT_LOAD_TARGET_LIGHT; + break; + case CAIRO_HINT_STYLE_MEDIUM: + break; + case CAIRO_HINT_STYLE_FULL: + case CAIRO_HINT_STYLE_DEFAULT: + if (options->base.antialias == CAIRO_ANTIALIAS_SUBPIXEL) { + switch (options->base.subpixel_order) { + case CAIRO_SUBPIXEL_ORDER_DEFAULT: + case CAIRO_SUBPIXEL_ORDER_RGB: + case CAIRO_SUBPIXEL_ORDER_BGR: + load_target = FT_LOAD_TARGET_LCD; + break; + case CAIRO_SUBPIXEL_ORDER_VRGB: + case CAIRO_SUBPIXEL_ORDER_VBGR: + load_target = FT_LOAD_TARGET_LCD_V; + break; + } + } + break; + } + } + + if (other->base.variations) { + if (options->base.variations) { + char *p; + + /* 'merge' variations by concatenating - later entries win */ + p = malloc (strlen (other->base.variations) + strlen (options->base.variations) + 2); + p[0] = 0; + strcat (p, other->base.variations); + strcat (p, ","); + strcat (p, options->base.variations); + free (options->base.variations); + options->base.variations = p; + } + else { + options->base.variations = strdup (other->base.variations); + } + } + + options->load_flags = load_flags | load_target; + options->synth_flags = other->synth_flags; +} + +static cairo_status_t +_cairo_ft_font_face_scaled_font_create (void *abstract_font_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options, + cairo_scaled_font_t **font_out) +{ + cairo_ft_font_face_t *font_face = abstract_font_face; + cairo_ft_scaled_font_t *scaled_font; + FT_Face face; + FT_Size_Metrics *metrics; + cairo_font_extents_t fs_metrics; + cairo_status_t status; + cairo_ft_unscaled_font_t *unscaled; + + assert (font_face->unscaled); + + face = _cairo_ft_unscaled_font_lock_face (font_face->unscaled); + if (unlikely (face == NULL)) /* backend error */ + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + scaled_font = _cairo_calloc (sizeof (cairo_ft_scaled_font_t)); + if (unlikely (scaled_font == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto FAIL; + } + + scaled_font->unscaled = unscaled = font_face->unscaled; + _cairo_unscaled_font_reference (&unscaled->base); + + _cairo_font_options_init_copy (&scaled_font->ft_options.base, options); + _cairo_ft_options_merge (&scaled_font->ft_options, &font_face->ft_options); + + status = _cairo_scaled_font_init (&scaled_font->base, + &font_face->base, + font_matrix, ctm, options, + &_cairo_ft_scaled_font_backend); + if (unlikely (status)) + goto CLEANUP_SCALED_FONT; + + status = _cairo_ft_unscaled_font_set_scale (unscaled, + &scaled_font->base.scale); + if (unlikely (status)) { + /* This can only fail if we encounter an error with the underlying + * font, so propagate the error back to the font-face. */ + _cairo_ft_unscaled_font_unlock_face (unscaled); + _cairo_unscaled_font_destroy (&unscaled->base); + free (scaled_font); + return status; + } + + + metrics = &face->size->metrics; + + /* + * Get to unscaled metrics so that the upper level can get back to + * user space + * + * Also use this path for bitmap-only fonts. The other branch uses + * face members that are only relevant for scalable fonts. This is + * detected by simply checking for units_per_EM==0. + */ + if (scaled_font->base.options.hint_metrics != CAIRO_HINT_METRICS_OFF || + face->units_per_EM == 0) { + fs_metrics.ascent = SCALE (DOUBLE_FROM_26_6 (metrics->ascender), unscaled->y_scale); + fs_metrics.descent = SCALE (DOUBLE_FROM_26_6 (- metrics->descender), unscaled->y_scale); + fs_metrics.height = SCALE (DOUBLE_FROM_26_6 (metrics->height), unscaled->y_scale); + if (!_cairo_ft_scaled_font_is_vertical (&scaled_font->base)) { + fs_metrics.max_x_advance = SCALE (DOUBLE_FROM_26_6 (metrics->max_advance), unscaled->x_scale); + fs_metrics.max_y_advance = 0; + } else { + fs_metrics.max_x_advance = 0; + fs_metrics.max_y_advance = SCALE (DOUBLE_FROM_26_6 (metrics->max_advance), unscaled->y_scale); + } + } else { + double scale = face->units_per_EM; + + fs_metrics.ascent = face->ascender / scale; + fs_metrics.descent = - face->descender / scale; + fs_metrics.height = face->height / scale; + if (!_cairo_ft_scaled_font_is_vertical (&scaled_font->base)) { + fs_metrics.max_x_advance = face->max_advance_width / scale; + fs_metrics.max_y_advance = 0; + } else { + fs_metrics.max_x_advance = 0; + fs_metrics.max_y_advance = face->max_advance_height / scale; + } + } + + status = _cairo_scaled_font_set_metrics (&scaled_font->base, &fs_metrics); + if (unlikely (status)) + goto CLEANUP_SCALED_FONT; + + _cairo_ft_unscaled_font_unlock_face (unscaled); + + *font_out = &scaled_font->base; + return CAIRO_STATUS_SUCCESS; + + CLEANUP_SCALED_FONT: + _cairo_unscaled_font_destroy (&unscaled->base); + free (scaled_font); + FAIL: + _cairo_ft_unscaled_font_unlock_face (font_face->unscaled); + *font_out = _cairo_scaled_font_create_in_error (status); + return CAIRO_STATUS_SUCCESS; /* non-backend error */ +} + +cairo_bool_t +_cairo_scaled_font_is_ft (cairo_scaled_font_t *scaled_font) +{ + return scaled_font->backend == &_cairo_ft_scaled_font_backend; +} + +static void +_cairo_ft_scaled_font_fini (void *abstract_font) +{ + cairo_ft_scaled_font_t *scaled_font = abstract_font; + + if (scaled_font == NULL) + return; + + _cairo_font_options_fini (&scaled_font->ft_options.base); + _cairo_unscaled_font_destroy (&scaled_font->unscaled->base); +} + +static int +_move_to (FT_Vector *to, void *closure) +{ + cairo_path_fixed_t *path = closure; + cairo_fixed_t x, y; + + x = _cairo_fixed_from_26_6 (to->x); + y = _cairo_fixed_from_26_6 (to->y); + + if (_cairo_path_fixed_close_path (path) != CAIRO_STATUS_SUCCESS) + return 1; + if (_cairo_path_fixed_move_to (path, x, y) != CAIRO_STATUS_SUCCESS) + return 1; + + return 0; +} + +static int +_line_to (FT_Vector *to, void *closure) +{ + cairo_path_fixed_t *path = closure; + cairo_fixed_t x, y; + + x = _cairo_fixed_from_26_6 (to->x); + y = _cairo_fixed_from_26_6 (to->y); + + if (_cairo_path_fixed_line_to (path, x, y) != CAIRO_STATUS_SUCCESS) + return 1; + + return 0; +} + +static int +_conic_to (FT_Vector *control, FT_Vector *to, void *closure) +{ + cairo_path_fixed_t *path = closure; + + cairo_fixed_t x0, y0; + cairo_fixed_t x1, y1; + cairo_fixed_t x2, y2; + cairo_fixed_t x3, y3; + cairo_point_t conic; + + if (! _cairo_path_fixed_get_current_point (path, &x0, &y0)) + return 1; + + conic.x = _cairo_fixed_from_26_6 (control->x); + conic.y = _cairo_fixed_from_26_6 (control->y); + + x3 = _cairo_fixed_from_26_6 (to->x); + y3 = _cairo_fixed_from_26_6 (to->y); + + x1 = x0 + 2.0/3.0 * (conic.x - x0); + y1 = y0 + 2.0/3.0 * (conic.y - y0); + + x2 = x3 + 2.0/3.0 * (conic.x - x3); + y2 = y3 + 2.0/3.0 * (conic.y - y3); + + if (_cairo_path_fixed_curve_to (path, + x1, y1, + x2, y2, + x3, y3) != CAIRO_STATUS_SUCCESS) + return 1; + + return 0; +} + +static int +_cubic_to (FT_Vector *control1, FT_Vector *control2, + FT_Vector *to, void *closure) +{ + cairo_path_fixed_t *path = closure; + cairo_fixed_t x0, y0; + cairo_fixed_t x1, y1; + cairo_fixed_t x2, y2; + + x0 = _cairo_fixed_from_26_6 (control1->x); + y0 = _cairo_fixed_from_26_6 (control1->y); + + x1 = _cairo_fixed_from_26_6 (control2->x); + y1 = _cairo_fixed_from_26_6 (control2->y); + + x2 = _cairo_fixed_from_26_6 (to->x); + y2 = _cairo_fixed_from_26_6 (to->y); + + if (_cairo_path_fixed_curve_to (path, + x0, y0, + x1, y1, + x2, y2) != CAIRO_STATUS_SUCCESS) + return 1; + + return 0; +} + +cairo_status_t +_cairo_ft_face_decompose_glyph_outline (FT_Face face, + cairo_path_fixed_t **pathp) +{ + static const FT_Outline_Funcs outline_funcs = { + (FT_Outline_MoveToFunc)_move_to, + (FT_Outline_LineToFunc)_line_to, + (FT_Outline_ConicToFunc)_conic_to, + (FT_Outline_CubicToFunc)_cubic_to, + 0, /* shift */ + 0, /* delta */ + }; + static const FT_Matrix invert_y = { + DOUBLE_TO_16_16 (1.0), 0, + 0, DOUBLE_TO_16_16 (-1.0), + }; + + FT_GlyphSlot glyph; + cairo_path_fixed_t *path; + cairo_status_t status; + + path = _cairo_path_fixed_create (); + if (!path) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + glyph = face->glyph; + + /* Font glyphs have an inverted Y axis compared to cairo. */ + FT_Outline_Transform (&glyph->outline, &invert_y); + if (FT_Outline_Decompose (&glyph->outline, &outline_funcs, path)) { + _cairo_path_fixed_destroy (path); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + status = _cairo_path_fixed_close_path (path); + if (unlikely (status)) { + _cairo_path_fixed_destroy (path); + return status; + } + + *pathp = path; + + return CAIRO_STATUS_SUCCESS; +} + +/* + * Translate glyph to match its metrics. + */ +static void +_cairo_ft_scaled_glyph_vertical_layout_bearing_fix (void *abstract_font, + FT_GlyphSlot glyph) +{ + cairo_ft_scaled_font_t *scaled_font = abstract_font; + FT_Vector vector; + + vector.x = glyph->metrics.vertBearingX - glyph->metrics.horiBearingX; + vector.y = -glyph->metrics.vertBearingY - glyph->metrics.horiBearingY; + + if (glyph->format == FT_GLYPH_FORMAT_OUTLINE) { + FT_Vector_Transform (&vector, &scaled_font->unscaled->Current_Shape); + FT_Outline_Translate(&glyph->outline, vector.x, vector.y); + } else if (glyph->format == FT_GLYPH_FORMAT_BITMAP) { + glyph->bitmap_left += vector.x / 64; + glyph->bitmap_top += vector.y / 64; + } +} + +static void +cairo_ft_apply_variations (FT_Face face, + cairo_ft_scaled_font_t *scaled_font) +{ + FT_MM_Var *ft_mm_var; + FT_Error ret; + unsigned int instance_id = scaled_font->unscaled->id >> 16; + + ret = FT_Get_MM_Var (face, &ft_mm_var); + if (ret == 0) { + FT_Fixed *current_coords; + FT_Fixed *coords; + unsigned int i; + const char *p; + + coords = malloc (sizeof (FT_Fixed) * ft_mm_var->num_axis); + /* FIXME check coords. */ + + if (scaled_font->unscaled->variations) + { + memcpy (coords, scaled_font->unscaled->variations, ft_mm_var->num_axis * sizeof (*coords)); + } + else if (instance_id && instance_id <= ft_mm_var->num_namedstyles) + { + FT_Var_Named_Style *instance = &ft_mm_var->namedstyle[instance_id - 1]; + memcpy (coords, instance->coords, ft_mm_var->num_axis * sizeof (*coords)); + } + else + for (i = 0; i < ft_mm_var->num_axis; i++) + coords[i] = ft_mm_var->axis[i].def; + + p = scaled_font->ft_options.base.variations; + while (p && *p) { + const char *start; + const char *end, *end2; + FT_ULong tag; + double value; + + while (_cairo_isspace (*p)) p++; + + start = p; + end = strchr (p, ','); + if (end && (end - p < 6)) + goto skip; + + tag = FT_MAKE_TAG(p[0], p[1], p[2], p[3]); + + p += 4; + while (_cairo_isspace (*p)) p++; + if (*p == '=') p++; + + if (p - start < 5) + goto skip; + + value = _cairo_strtod (p, (char **) &end2); + + while (end2 && _cairo_isspace (*end2)) end2++; + + if (end2 && (*end2 != ',' && *end2 != '\0')) + goto skip; + + for (i = 0; i < ft_mm_var->num_axis; i++) { + if (ft_mm_var->axis[i].tag == tag) { + coords[i] = (FT_Fixed)(value*65536); + break; + } + } + +skip: + p = end ? end + 1 : NULL; + } + + current_coords = malloc (sizeof (FT_Fixed) * ft_mm_var->num_axis); + ret = FT_Get_Var_Design_Coordinates (face, ft_mm_var->num_axis, current_coords); + if (ret == 0) { + for (i = 0; i < ft_mm_var->num_axis; i++) { + if (coords[i] != current_coords[i]) + break; + } + if (i == ft_mm_var->num_axis) + goto done; + } + + FT_Set_Var_Design_Coordinates (face, ft_mm_var->num_axis, coords); +done: + free (coords); + free (current_coords); + FT_Done_MM_Var (face->glyph->library, ft_mm_var); + } +} + +typedef enum { + CAIRO_FT_GLYPH_TYPE_BITMAP, + CAIRO_FT_GLYPH_TYPE_OUTLINE, + CAIRO_FT_GLYPH_TYPE_SVG, + CAIRO_FT_GLYPH_TYPE_COLR_V0, + CAIRO_FT_GLYPH_TYPE_COLR_V1, +} cairo_ft_glyph_format_t; + +typedef struct { + cairo_scaled_glyph_private_t base; + + cairo_ft_glyph_format_t format; +} cairo_ft_glyph_private_t; + +static const int ft_glyph_private_key; + +static cairo_int_status_t +_cairo_ft_scaled_glyph_load_glyph (cairo_ft_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + FT_Face face, + int load_flags, + cairo_bool_t use_em_size, + cairo_bool_t vertical_layout) +{ + FT_Error error; + cairo_status_t status; + cairo_ft_glyph_private_t *glyph_priv; + + glyph_priv = (cairo_ft_glyph_private_t *) _cairo_scaled_glyph_find_private (scaled_glyph, + &ft_glyph_private_key); + assert (glyph_priv != NULL); + + if (use_em_size) { + cairo_matrix_t em_size; + cairo_matrix_init_scale (&em_size, face->units_per_EM, face->units_per_EM); + status = _cairo_ft_unscaled_font_set_scale (scaled_font->unscaled, &em_size); + } else { + status = _cairo_ft_unscaled_font_set_scale (scaled_font->unscaled, + &scaled_font->base.scale); + } + if (unlikely (status)) + return status; + + cairo_ft_apply_variations (face, scaled_font); + +#if defined(HAVE_FT_LOAD_NO_SVG) + if (load_flags & FT_LOAD_COLOR && glyph_priv->format == CAIRO_FT_GLYPH_TYPE_COLR_V1) + load_flags |= FT_LOAD_NO_SVG; +#endif + + error = FT_Load_Glyph (face, + _cairo_scaled_glyph_index(scaled_glyph), + load_flags); + /* XXX ignoring all other errors for now. They are not fatal, typically + * just a glyph-not-found. */ + if (error == FT_Err_Out_Of_Memory) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + /* + * synthesize glyphs if requested + */ + if (scaled_font->ft_options.synth_flags & CAIRO_FT_SYNTHESIZE_BOLD) + FT_GlyphSlot_Embolden (face->glyph); + + if (scaled_font->ft_options.synth_flags & CAIRO_FT_SYNTHESIZE_OBLIQUE) + FT_GlyphSlot_Oblique (face->glyph); + + if (vertical_layout) + _cairo_ft_scaled_glyph_vertical_layout_bearing_fix (scaled_font, face->glyph); + + if (face->glyph->format == FT_GLYPH_FORMAT_OUTLINE) { + FT_Pos xshift, yshift; + + xshift = _cairo_scaled_glyph_xphase (scaled_glyph) << 4; + yshift = _cairo_scaled_glyph_yphase (scaled_glyph) << 4; + + FT_Outline_Translate (&face->glyph->outline, xshift, -yshift); + } + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_ft_glyph_fini (cairo_scaled_glyph_private_t *glyph_private, + cairo_scaled_glyph_t *glyph, + cairo_scaled_font_t *font) +{ + cairo_list_del (&glyph_private->link); + free (glyph_private); +} + + +static void +_cairo_ft_scaled_glyph_set_palette (cairo_ft_scaled_font_t *scaled_font, + FT_Face face, + unsigned int *num_entries_ret, + FT_Color **entries_ret) +{ + unsigned int num_entries = 0; + FT_Color *entries = NULL; + + FT_Palette_Data palette_data; + + if (FT_Palette_Data_Get (face, &palette_data) == 0 && palette_data.num_palettes > 0) { + FT_UShort palette_index = CAIRO_COLOR_PALETTE_DEFAULT; + if (scaled_font->base.options.palette_index < palette_data.num_palettes) + palette_index = scaled_font->base.options.palette_index; + + if (FT_Palette_Select (face, palette_index, &entries) == 0) { + num_entries = palette_data.num_palette_entries; + + /* Overlay custom colors */ + for (unsigned int i = 0; i < scaled_font->base.options.custom_palette_size; i++) { + cairo_palette_color_t *entry = &scaled_font->base.options.custom_palette[i]; + if (entry->index < num_entries) { + entries[entry->index].red = 255 * entry->red; + entries[entry->index].green = 255 * entry->green; + entries[entry->index].blue = 255 * entry->blue; + entries[entry->index].alpha = 255 * entry->alpha; + } + } + } + } + + if (num_entries_ret) + *num_entries_ret = num_entries; + + if (entries_ret) + *entries_ret = entries; +} + +/* returns TRUE if foreground color used */ +static cairo_bool_t +_cairo_ft_scaled_glyph_set_foreground_color (cairo_ft_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + FT_Face face, + const cairo_color_t *foreground_color) +{ + cairo_bool_t uses_foreground_color = FALSE; + FT_LayerIterator iterator; + FT_UInt layer_glyph_index; + FT_UInt layer_color_index; + FT_Color color; + + /* Check if there is a layer that uses the foreground color */ + iterator.p = NULL; + while (FT_Get_Color_Glyph_Layer(face, + _cairo_scaled_glyph_index (scaled_glyph), + &layer_glyph_index, + &layer_color_index, + &iterator)) { + if (layer_color_index == 0xFFFF) { + uses_foreground_color = TRUE; + break; + } + } + + if (uses_foreground_color) { + color.red = (FT_Byte)(foreground_color->red * 0xFF); + color.green = (FT_Byte)(foreground_color->green * 0xFF); + color.blue = (FT_Byte)(foreground_color->blue * 0xFF); + color.alpha = (FT_Byte)(foreground_color->alpha * 0xFF); + FT_Palette_Set_Foreground_Color (face, color); + } + + return uses_foreground_color; +} + +static cairo_int_status_t +_cairo_ft_scaled_glyph_init_surface (cairo_ft_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + cairo_ft_glyph_private_t *glyph_priv, + cairo_scaled_glyph_info_t info, + FT_Face face, + const cairo_color_t *foreground_color, + cairo_bool_t vertical_layout, + int load_flags) +{ + cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; + FT_GlyphSlot glyph; + cairo_status_t status; + cairo_image_surface_t *surface; + cairo_bool_t uses_foreground_color = FALSE; + + /* Only one info type at a time handled in this function */ + assert (info == CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE || info == CAIRO_SCALED_GLYPH_INFO_SURFACE); + + if (info == CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) { + if (!unscaled->have_color) { + scaled_glyph->color_glyph = FALSE; + scaled_glyph->color_glyph_set = TRUE; + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + uses_foreground_color = _cairo_ft_scaled_glyph_set_foreground_color (scaled_font, + scaled_glyph, + face, + foreground_color); + _cairo_ft_scaled_glyph_set_palette (scaled_font, face, NULL, NULL); + + load_flags &= ~FT_LOAD_MONOCHROME; + /* clear load target mode */ + load_flags &= ~(FT_LOAD_TARGET_(FT_LOAD_TARGET_MODE(load_flags))); + load_flags |= FT_LOAD_TARGET_NORMAL; + load_flags |= FT_LOAD_COLOR; + } else { /* info == CAIRO_SCALED_GLYPH_INFO_SURFACE */ + load_flags &= ~FT_LOAD_COLOR; + } + + status = _cairo_ft_scaled_glyph_load_glyph (scaled_font, + scaled_glyph, + face, + load_flags, + FALSE, + vertical_layout); + if (unlikely (status)) + return status; + + glyph = face->glyph; + + if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_OUTLINE) { + + status = _render_glyph_outline (face, &scaled_font->ft_options.base, + &surface); + } else { + status = _render_glyph_bitmap (face, &scaled_font->ft_options.base, + &surface); + if (likely (status == CAIRO_STATUS_SUCCESS) && unscaled->have_shape) { + status = _transform_glyph_bitmap (&unscaled->current_shape, + &surface); + if (unlikely (status)) + cairo_surface_destroy (&surface->base); + } + } + + if (unlikely (status)) + return status; + + if (info == CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) { + /* We tried loading a color glyph and can now check if we got + * a color glyph and set scaled_glyph->color_glyph + * accordingly */ + if (pixman_image_get_format (surface->pixman_image) == PIXMAN_a8r8g8b8 && + !pixman_image_get_component_alpha (surface->pixman_image)) + { + _cairo_scaled_glyph_set_color_surface (scaled_glyph, + &scaled_font->base, + surface, + uses_foreground_color ? foreground_color : NULL); + + scaled_glyph->color_glyph = TRUE; + } else { + /* We didn't ask for a non-color surface, but store it + * anyway so we don't have to load it again. */ + _cairo_scaled_glyph_set_surface (scaled_glyph, + &scaled_font->base, + surface); + scaled_glyph->color_glyph = FALSE; + status = CAIRO_INT_STATUS_UNSUPPORTED; + } + scaled_glyph->color_glyph_set = TRUE; + } else { /* info == CAIRO_SCALED_GLYPH_INFO_SURFACE */ + _cairo_scaled_glyph_set_surface (scaled_glyph, + &scaled_font->base, + surface); + } + + return status; +} + +static cairo_int_status_t +_cairo_ft_scaled_glyph_init_record_colr_v0_glyph (cairo_ft_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + FT_Face face, + cairo_bool_t vertical_layout, + int load_flags) +{ + cairo_surface_t *recording_surface; + cairo_t *cr; + cairo_status_t status; + FT_Color *palette; + unsigned int num_palette_entries; + FT_LayerIterator iterator; + FT_UInt layer_glyph_index; + FT_UInt layer_color_index; + cairo_path_fixed_t *path_fixed; + cairo_path_t *path; + + _cairo_ft_scaled_glyph_set_palette (scaled_font, face, &num_palette_entries, &palette); + + load_flags &= ~FT_LOAD_MONOCHROME; + /* clear load target mode */ + load_flags &= ~(FT_LOAD_TARGET_(FT_LOAD_TARGET_MODE(load_flags))); + load_flags |= FT_LOAD_TARGET_NORMAL; + load_flags |= FT_LOAD_COLOR; + + recording_surface = + cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + + cr = cairo_create (recording_surface); + + if (!_cairo_matrix_is_scale_0 (&scaled_font->base.scale)) { + cairo_matrix_t scale; + scale = scaled_font->base.scale; + scale.x0 = scale.y0 = 0.; + cairo_set_matrix (cr, &scale); + } + + iterator.p = NULL; + while (FT_Get_Color_Glyph_Layer(face, + _cairo_scaled_glyph_index (scaled_glyph), + &layer_glyph_index, + &layer_color_index, + &iterator)) + { + cairo_pattern_t *pattern; + if (layer_color_index == 0xFFFF) { + pattern = _cairo_pattern_create_foreground_marker (); + } else { + double r = 0, g = 0, b = 0, a = 1; + if (layer_color_index < num_palette_entries) { + FT_Color *color = &palette[layer_color_index]; + r = color->red / 255.0; + g = color->green/ 255.0; + b = color->blue / 255.0; + a = color->alpha / 255.0; + } + pattern = cairo_pattern_create_rgba (r, g, b, a); + } + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + if (FT_Load_Glyph (face, layer_glyph_index, load_flags) != 0) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto cleanup; + } + + status = _cairo_ft_face_decompose_glyph_outline (face, &path_fixed); + if (unlikely (status)) + return status; + + path = _cairo_path_create (path_fixed, cr); + _cairo_path_fixed_destroy (path_fixed); + cairo_append_path(cr, path); + cairo_path_destroy (path); + cairo_fill (cr); + } + + cleanup: + cairo_destroy (cr); + + if (status) { + cairo_surface_destroy (recording_surface); + return status; + } + + _cairo_scaled_glyph_set_recording_surface (scaled_glyph, + &scaled_font->base, + recording_surface, + NULL); + return status; +} + +static cairo_int_status_t +_cairo_ft_scaled_glyph_init_record_colr_v1_glyph (cairo_ft_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + FT_Face face, + const cairo_color_t *foreground_color, + cairo_text_extents_t *extents) +{ +#if HAVE_FT_COLR_V1 + cairo_status_t status = CAIRO_STATUS_SUCCESS; + cairo_surface_t *recording_surface; + cairo_t *cr; + FT_Color *palette; + unsigned int num_palette_entries; + cairo_bool_t foreground_source_used = FALSE; + + recording_surface = + cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + + cairo_surface_set_device_scale (recording_surface, 1, -1); + + cr = cairo_create (recording_surface); + + cairo_set_font_size (cr, 1.0); + cairo_set_font_options (cr, &scaled_font->base.options); + + extents->x_bearing = DOUBLE_FROM_26_6(face->bbox.xMin); + extents->y_bearing = DOUBLE_FROM_26_6(face->bbox.yMin); + extents->width = DOUBLE_FROM_26_6(face->bbox.xMax) - extents->x_bearing; + extents->height = DOUBLE_FROM_26_6(face->bbox.yMax) - extents->y_bearing; + + _cairo_ft_scaled_glyph_set_palette (scaled_font, face, &num_palette_entries, &palette); + + if (!_cairo_matrix_is_scale_0 (&scaled_font->base.scale)) { + cairo_pattern_t *foreground_pattern = _cairo_pattern_create_solid (foreground_color); + status = _cairo_render_colr_v1_glyph (face, + _cairo_scaled_glyph_index (scaled_glyph), + palette, + num_palette_entries, + cr, + foreground_pattern, + &foreground_source_used); + cairo_pattern_destroy (foreground_pattern); + if (status == CAIRO_STATUS_SUCCESS) + status = cairo_status (cr); + } + + cairo_destroy (cr); + + if (status) { + cairo_surface_destroy (recording_surface); + scaled_glyph->color_glyph = FALSE; + scaled_glyph->color_glyph_set = TRUE; + return status; + } + + _cairo_scaled_glyph_set_recording_surface (scaled_glyph, + &scaled_font->base, + recording_surface, + foreground_source_used ? foreground_color : NULL); + + scaled_glyph->color_glyph = TRUE; + scaled_glyph->color_glyph_set = TRUE; + + /* get metrics */ + + /* Copied from cairo-user-font.c */ + cairo_matrix_t extent_scale; + double extent_x_scale = 1.0; + double extent_y_scale = 1.0; + double snap_x_scale; + double snap_y_scale; + double fixed_scale, x_scale, y_scale; + + extent_scale = scaled_font->base.scale_inverse; + snap_x_scale = 1.0; + snap_y_scale = 1.0; + status = _cairo_matrix_compute_basis_scale_factors (&extent_scale, + &x_scale, &y_scale, + 1); + if (status == CAIRO_STATUS_SUCCESS) { + if (x_scale == 0) + x_scale = 1; + if (y_scale == 0) + y_scale = 1; + + snap_x_scale = x_scale; + snap_y_scale = y_scale; + + /* since glyphs are pretty much 1.0x1.0, we can reduce error by + * scaling to a larger square. say, 1024.x1024. */ + fixed_scale = 1024; + x_scale /= fixed_scale; + y_scale /= fixed_scale; + + cairo_matrix_scale (&extent_scale, 1.0 / x_scale, 1.0 / y_scale); + + extent_x_scale = x_scale; + extent_y_scale = y_scale; + } + + { + /* compute width / height */ + cairo_box_t bbox; + double x1, y1, x2, y2; + double x_scale, y_scale; + + /* Compute extents.x/y/width/height from recording_surface, + * in font space. + */ + status = _cairo_recording_surface_get_bbox ((cairo_recording_surface_t *) recording_surface, + &bbox, + &extent_scale); + if (unlikely (status)) + return status; + + _cairo_box_to_doubles (&bbox, &x1, &y1, &x2, &y2); + + x_scale = extent_x_scale; + y_scale = extent_y_scale; + extents->x_bearing = x1 * x_scale; + extents->y_bearing = y1 * y_scale; + extents->width = (x2 - x1) * x_scale; + extents->height = (y2 - y1) * y_scale; + } + + if (scaled_font->base.options.hint_metrics != CAIRO_HINT_METRICS_OFF) { + extents->x_advance = _cairo_lround (extents->x_advance / snap_x_scale) * snap_x_scale; + extents->y_advance = _cairo_lround (extents->y_advance / snap_y_scale) * snap_y_scale; + } + + return status; +#else + return CAIRO_INT_STATUS_UNSUPPORTED; +#endif +} + +static cairo_int_status_t +_cairo_ft_scaled_glyph_init_record_svg_glyph (cairo_ft_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + FT_Face face, + const cairo_color_t *foreground_color, + cairo_text_extents_t *extents) +{ +#if HAVE_FT_SVG_DOCUMENT + cairo_status_t status = CAIRO_STATUS_SUCCESS; + cairo_surface_t *recording_surface; + cairo_t *cr; + FT_SVG_Document svg_doc = face->glyph->other; + char *svg_document; + FT_Color *palette; + unsigned int num_palette_entries; + cairo_bool_t foreground_source_used = FALSE; + + /* Create NULL terminated SVG document */ + svg_document = _cairo_strndup ((const char*)svg_doc->svg_document, svg_doc->svg_document_length); + + recording_surface = + cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + + cr = cairo_create (recording_surface); + + if (!_cairo_matrix_is_scale_0 (&scaled_font->base.scale)) { + cairo_matrix_t scale; + scale = scaled_font->base.scale; + scale.x0 = scale.y0 = 0.; + cairo_set_matrix (cr, &scale); + } + + cairo_set_font_size (cr, 1.0); + cairo_set_font_options (cr, &scaled_font->base.options); + + extents->x_bearing = DOUBLE_FROM_26_6(face->bbox.xMin); + extents->y_bearing = DOUBLE_FROM_26_6(face->bbox.yMin); + extents->width = DOUBLE_FROM_26_6(face->bbox.xMax) - extents->x_bearing; + extents->height = DOUBLE_FROM_26_6(face->bbox.yMax) - extents->y_bearing; + + _cairo_ft_scaled_glyph_set_palette (scaled_font, face, &num_palette_entries, &palette); + + if (!_cairo_matrix_is_scale_0 (&scaled_font->base.scale)) { + cairo_pattern_t *foreground_pattern = _cairo_pattern_create_solid (foreground_color); + status = _cairo_render_svg_glyph (svg_document, + svg_doc->start_glyph_id, + svg_doc->end_glyph_id, + _cairo_scaled_glyph_index(scaled_glyph), + svg_doc->units_per_EM, + palette, + num_palette_entries, + cr, + foreground_pattern, + &foreground_source_used); + cairo_pattern_destroy (foreground_pattern); + if (status == CAIRO_STATUS_SUCCESS) + status = cairo_status (cr); + } + + cairo_destroy (cr); + free (svg_document); + + if (status) { + cairo_surface_destroy (recording_surface); + scaled_glyph->color_glyph = FALSE; + scaled_glyph->color_glyph_set = TRUE; + return status; + } + + _cairo_scaled_glyph_set_recording_surface (scaled_glyph, + &scaled_font->base, + recording_surface, + foreground_source_used ? foreground_color : NULL); + + scaled_glyph->color_glyph = TRUE; + scaled_glyph->color_glyph_set = TRUE; + + /* get metrics */ + + /* Copied from cairo-user-font.c */ + cairo_matrix_t extent_scale; + double extent_x_scale; + double extent_y_scale; + double snap_x_scale; + double snap_y_scale; + double fixed_scale, x_scale, y_scale; + + extent_scale = scaled_font->base.scale_inverse; + snap_x_scale = 1.0; + snap_y_scale = 1.0; + status = _cairo_matrix_compute_basis_scale_factors (&extent_scale, + &x_scale, &y_scale, + 1); + if (status == CAIRO_STATUS_SUCCESS) { + if (x_scale == 0) + x_scale = 1; + if (y_scale == 0) + y_scale = 1; + + snap_x_scale = x_scale; + snap_y_scale = y_scale; + + /* since glyphs are pretty much 1.0x1.0, we can reduce error by + * scaling to a larger square. say, 1024.x1024. */ + fixed_scale = 1024; + x_scale /= fixed_scale; + y_scale /= fixed_scale; + + cairo_matrix_scale (&extent_scale, 1.0 / x_scale, 1.0 / y_scale); + + extent_x_scale = x_scale; + extent_y_scale = y_scale; + } + + { + /* compute width / height */ + cairo_box_t bbox; + double x1, y1, x2, y2; + double x_scale, y_scale; + + /* Compute extents.x/y/width/height from recording_surface, + * in font space. + */ + status = _cairo_recording_surface_get_bbox ((cairo_recording_surface_t *) recording_surface, + &bbox, + &extent_scale); + if (unlikely (status)) + return status; + + _cairo_box_to_doubles (&bbox, &x1, &y1, &x2, &y2); + + x_scale = extent_x_scale; + y_scale = extent_y_scale; + extents->x_bearing = x1 * x_scale; + extents->y_bearing = y1 * y_scale; + extents->width = (x2 - x1) * x_scale; + extents->height = (y2 - y1) * y_scale; + } + + if (scaled_font->base.options.hint_metrics != CAIRO_HINT_METRICS_OFF) { + extents->x_advance = _cairo_lround (extents->x_advance / snap_x_scale) * snap_x_scale; + extents->y_advance = _cairo_lround (extents->y_advance / snap_y_scale) * snap_y_scale; + } + + return status; +#else + return CAIRO_INT_STATUS_UNSUPPORTED; +#endif +} + +static cairo_int_status_t +_cairo_ft_scaled_glyph_init_surface_for_recording_surface (cairo_ft_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + const cairo_color_t *foreground_color) +{ + cairo_surface_t *surface; + int width, height; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_bool_t foreground_used; + + width = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.x) - + _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.x); + height = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.y) - + _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.y); + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height); + + cairo_surface_set_device_offset (surface, + - _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.x), + - _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.y)); + + status = _cairo_recording_surface_replay_with_foreground_color (scaled_glyph->recording_surface, + surface, + foreground_color, + &foreground_used); + if (unlikely (status)) { + cairo_surface_destroy(surface); + return status; + } + + _cairo_scaled_glyph_set_color_surface (scaled_glyph, + &scaled_font->base, + (cairo_image_surface_t *)surface, + foreground_used ? foreground_color : NULL); + surface = NULL; + + if (surface) + cairo_surface_destroy (surface); + + return status; +} + +static void +_cairo_ft_scaled_glyph_get_metrics (cairo_ft_scaled_font_t *scaled_font, + FT_Face face, + cairo_bool_t vertical_layout, + int load_flags, + cairo_text_extents_t *fs_metrics) +{ + FT_Glyph_Metrics *metrics; + cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; + cairo_bool_t hint_metrics = scaled_font->base.options.hint_metrics != CAIRO_HINT_METRICS_OFF; + FT_GlyphSlot glyph = face->glyph; + + /* + * Compute font-space metrics + */ + metrics = &glyph->metrics; + + /* + * Note: Y coordinates of the horizontal bearing need to be negated. + * + * Scale metrics back to glyph space from the scaled glyph space returned + * by FreeType + * + * If we want hinted metrics but aren't asking for hinted glyphs from + * FreeType, then we need to do the metric hinting ourselves. + */ + + if (hint_metrics && (load_flags & FT_LOAD_NO_HINTING)) + { + FT_Pos x1, x2; + FT_Pos y1, y2; + FT_Pos advance; + + if (!vertical_layout) { + x1 = (metrics->horiBearingX) & -64; + x2 = (metrics->horiBearingX + metrics->width + 63) & -64; + y1 = (-metrics->horiBearingY) & -64; + y2 = (-metrics->horiBearingY + metrics->height + 63) & -64; + + advance = ((metrics->horiAdvance + 32) & -64); + + fs_metrics->x_bearing = SCALE (DOUBLE_FROM_26_6 (x1), unscaled->x_scale); + fs_metrics->y_bearing = SCALE (DOUBLE_FROM_26_6 (y1), unscaled->y_scale); + + fs_metrics->width = SCALE (DOUBLE_FROM_26_6 (x2 - x1), unscaled->x_scale); + fs_metrics->height = SCALE (DOUBLE_FROM_26_6 (y2 - y1), unscaled->y_scale); + + fs_metrics->x_advance = SCALE (DOUBLE_FROM_26_6 (advance), unscaled->x_scale); + fs_metrics->y_advance = 0; + } else { + x1 = (metrics->vertBearingX) & -64; + x2 = (metrics->vertBearingX + metrics->width + 63) & -64; + y1 = (metrics->vertBearingY) & -64; + y2 = (metrics->vertBearingY + metrics->height + 63) & -64; + + advance = ((metrics->vertAdvance + 32) & -64); + + fs_metrics->x_bearing = SCALE (DOUBLE_FROM_26_6 (x1), unscaled->x_scale); + fs_metrics->y_bearing = SCALE (DOUBLE_FROM_26_6 (y1), unscaled->y_scale); + + fs_metrics->width = SCALE (DOUBLE_FROM_26_6 (x2 - x1), unscaled->x_scale); + fs_metrics->height = SCALE (DOUBLE_FROM_26_6 (y2 - y1), unscaled->y_scale); + + fs_metrics->x_advance = 0; + fs_metrics->y_advance = SCALE (DOUBLE_FROM_26_6 (advance), unscaled->y_scale); + } + } else { + fs_metrics->width = SCALE (DOUBLE_FROM_26_6 (metrics->width), unscaled->x_scale); + fs_metrics->height = SCALE (DOUBLE_FROM_26_6 (metrics->height), unscaled->y_scale); + + if (!vertical_layout) { + fs_metrics->x_bearing = SCALE (DOUBLE_FROM_26_6 (metrics->horiBearingX), unscaled->x_scale); + fs_metrics->y_bearing = SCALE (DOUBLE_FROM_26_6 (-metrics->horiBearingY), unscaled->y_scale); + + if (hint_metrics || glyph->format != FT_GLYPH_FORMAT_OUTLINE) + fs_metrics->x_advance = SCALE (DOUBLE_FROM_26_6 (metrics->horiAdvance), unscaled->x_scale); + else + fs_metrics->x_advance = SCALE (DOUBLE_FROM_16_16 (glyph->linearHoriAdvance), unscaled->x_scale); + fs_metrics->y_advance = 0; + } else { + fs_metrics->x_bearing = SCALE (DOUBLE_FROM_26_6 (metrics->vertBearingX), unscaled->x_scale); + fs_metrics->y_bearing = SCALE (DOUBLE_FROM_26_6 (metrics->vertBearingY), unscaled->y_scale); + + fs_metrics->x_advance = 0; + if (hint_metrics || glyph->format != FT_GLYPH_FORMAT_OUTLINE) + fs_metrics->y_advance = SCALE (DOUBLE_FROM_26_6 (metrics->vertAdvance), unscaled->y_scale); + else + fs_metrics->y_advance = SCALE (DOUBLE_FROM_16_16 (glyph->linearVertAdvance), unscaled->y_scale); + } + } +} + +static cairo_bool_t +_cairo_ft_scaled_glyph_is_colr_v0 (cairo_ft_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + FT_Face face) +{ + FT_LayerIterator iterator; + FT_UInt layer_glyph_index; + FT_UInt layer_color_index; + + iterator.p = NULL; + if (FT_Get_Color_Glyph_Layer(face, + _cairo_scaled_glyph_index (scaled_glyph), + &layer_glyph_index, + &layer_color_index, + &iterator) == 1) + { + return TRUE; + } + + return FALSE; +} + +static cairo_bool_t +_cairo_ft_scaled_glyph_is_colr_v1 (cairo_ft_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + FT_Face face) +{ +#if HAVE_FT_COLR_V1 + FT_OpaquePaint paint = { NULL, 0 }; + + if (FT_Get_Color_Glyph_Paint (face, + _cairo_scaled_glyph_index (scaled_glyph), + FT_COLOR_INCLUDE_ROOT_TRANSFORM, + &paint) == 1) + { + return TRUE; + } +#endif + return FALSE; +} + +static cairo_int_status_t +_cairo_ft_scaled_glyph_init_metrics (cairo_ft_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + FT_Face face, + cairo_bool_t vertical_layout, + int load_flags, + const cairo_color_t *foreground_color) +{ + cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS; + cairo_text_extents_t fs_metrics; + cairo_ft_glyph_private_t *glyph_priv; + + cairo_bool_t hint_metrics = scaled_font->base.options.hint_metrics != CAIRO_HINT_METRICS_OFF; + + /* _cairo_ft_scaled_glyph_init_metrics() is called once the first + * time a cairo_scaled_glyph_t is created. We first allocate the + * cairo_ft_glyph_private_t struct and determine the glyph type. + */ + + glyph_priv = _cairo_calloc (sizeof (*glyph_priv)); + if (unlikely (glyph_priv == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_scaled_glyph_attach_private (scaled_glyph, &glyph_priv->base, + &ft_glyph_private_key, + _cairo_ft_glyph_fini); + + /* We need to load color to determine if this is a color format. */ + int color_flag = 0; + + if (scaled_font->unscaled->have_color && scaled_font->base.options.color_mode != CAIRO_COLOR_MODE_NO_COLOR) + color_flag = FT_LOAD_COLOR; + + /* Ensure use_em_size = FALSE as the format (bitmap or outline) + * may change with the size. */ + status = _cairo_ft_scaled_glyph_load_glyph (scaled_font, + scaled_glyph, + face, + load_flags | color_flag, + FALSE, + vertical_layout); + if (unlikely (status)) + return status; + + cairo_bool_t is_svg_format = FALSE; +#if HAVE_FT_SVG_DOCUMENT + if (face->glyph->format == FT_GLYPH_FORMAT_SVG) + is_svg_format = TRUE; +#endif + + if (is_svg_format) { + glyph_priv->format = CAIRO_FT_GLYPH_TYPE_SVG; + +#if defined(HAVE_FT_COLR_V1) && defined(HAVE_FT_LOAD_NO_SVG) + /* Prefer COLRv1 table over SVG table due to performance reasons for now */ + if (_cairo_ft_scaled_glyph_is_colr_v1 (scaled_font, scaled_glyph, face)) { + glyph_priv->format = CAIRO_FT_GLYPH_TYPE_COLR_V1; + } +#endif + + } else if (face->glyph->format == FT_GLYPH_FORMAT_OUTLINE) { + glyph_priv->format = CAIRO_FT_GLYPH_TYPE_OUTLINE; + if (color_flag) { + if (_cairo_ft_scaled_glyph_is_colr_v1 (scaled_font, scaled_glyph, face)) + glyph_priv->format = CAIRO_FT_GLYPH_TYPE_COLR_V1; + else if (_cairo_ft_scaled_glyph_is_colr_v0 (scaled_font, scaled_glyph, face)) + glyph_priv->format = CAIRO_FT_GLYPH_TYPE_COLR_V0; + } + } else { + /* For anything else we let FreeType render a bitmap. */ + glyph_priv->format = CAIRO_FT_GLYPH_TYPE_BITMAP; + } + + /* If hinting is off, load the glyph with font size set the the em size. */ + if (!hint_metrics) { + status = _cairo_ft_scaled_glyph_load_glyph (scaled_font, + scaled_glyph, + face, + load_flags | color_flag, + TRUE, + vertical_layout); + if (unlikely (status)) + return status; + } + + _cairo_ft_scaled_glyph_get_metrics (scaled_font, + face, + vertical_layout, + load_flags, + &fs_metrics); + + + /* SVG and COLRv1 glyphs require the bounding box to be obtained + * from the ink extents of the rendering. We need to render glyph + * to a recording surface to obtain these extents. But we also + * need the advance from _cairo_ft_scaled_glyph_get_metrics() + * before calling this function. + */ + + if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_SVG) { + status = (cairo_int_status_t)_cairo_ft_scaled_glyph_init_record_svg_glyph (scaled_font, + scaled_glyph, + face, + foreground_color, + &fs_metrics); + if (unlikely (status)) + return status; + } + + if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_COLR_V1) { + /* Restore font size if previously loaded at em_size. */ + if (!hint_metrics) { + status = _cairo_ft_scaled_glyph_load_glyph (scaled_font, + scaled_glyph, + face, + load_flags | color_flag, + FALSE, + vertical_layout); + if (unlikely (status)) + return status; + } + + status = (cairo_int_status_t)_cairo_ft_scaled_glyph_init_record_colr_v1_glyph (scaled_font, + scaled_glyph, + face, + foreground_color, + &fs_metrics); + if (unlikely (status)) + return status; + } + + _cairo_scaled_glyph_set_metrics (scaled_glyph, + &scaled_font->base, + &fs_metrics); + + return status; +} + +static cairo_int_status_t +_cairo_ft_scaled_glyph_init (void *abstract_font, + cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_glyph_info_t info, + const cairo_color_t *foreground_color) +{ + cairo_ft_scaled_font_t *scaled_font = abstract_font; + cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; + FT_Face face; + int load_flags = scaled_font->ft_options.load_flags; + cairo_bool_t vertical_layout = FALSE; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + cairo_ft_glyph_private_t *glyph_priv; + + face = _cairo_ft_unscaled_font_lock_face (unscaled); + if (!face) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + /* Ignore global advance unconditionally */ + load_flags |= FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH; + + if ((info & CAIRO_SCALED_GLYPH_INFO_PATH) != 0 && + (info & (CAIRO_SCALED_GLYPH_INFO_SURFACE | + CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE)) == 0) { + load_flags |= FT_LOAD_NO_BITMAP; + } + + /* + * Don't pass FT_LOAD_VERTICAL_LAYOUT to FT_Load_Glyph here as + * suggested by freetype people. + */ + if (load_flags & FT_LOAD_VERTICAL_LAYOUT) { + load_flags &= ~FT_LOAD_VERTICAL_LAYOUT; + vertical_layout = TRUE; + } + + /* Metrics will always be requested when a scaled glyph is created */ + if (info & CAIRO_SCALED_GLYPH_INFO_METRICS) { + status = _cairo_ft_scaled_glyph_init_metrics (scaled_font, + scaled_glyph, + face, + vertical_layout, + load_flags, + foreground_color); + if (unlikely (status)) + goto FAIL; + } + + glyph_priv = (cairo_ft_glyph_private_t *) _cairo_scaled_glyph_find_private (scaled_glyph, + &ft_glyph_private_key); + assert (glyph_priv != NULL); + + if (info & CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_SVG || + glyph_priv->format == CAIRO_FT_GLYPH_TYPE_COLR_V0 || + glyph_priv->format == CAIRO_FT_GLYPH_TYPE_COLR_V1) + { + status = _cairo_ft_scaled_glyph_load_glyph (scaled_font, + scaled_glyph, + face, + load_flags | FT_LOAD_COLOR, + FALSE, + vertical_layout); + if (unlikely (status)) + goto FAIL; + + if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_SVG) { + status = _cairo_ft_scaled_glyph_init_record_svg_glyph (scaled_font, + scaled_glyph, + face, + foreground_color, + &scaled_glyph->fs_metrics); + } else if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_COLR_V1) { + status = _cairo_ft_scaled_glyph_init_record_colr_v1_glyph (scaled_font, + scaled_glyph, + face, + foreground_color, + &scaled_glyph->fs_metrics); + } else if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_COLR_V0) { + status = _cairo_ft_scaled_glyph_init_record_colr_v0_glyph (scaled_font, + scaled_glyph, + face, + vertical_layout, + load_flags); + } + } + if (status) + goto FAIL; + } + + if ((info & CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) && scaled_font->base.options.color_mode != CAIRO_COLOR_MODE_NO_COLOR) { + if (glyph_priv->format == CAIRO_FT_GLYPH_TYPE_SVG || + glyph_priv->format == CAIRO_FT_GLYPH_TYPE_COLR_V1) + { + status = _cairo_ft_scaled_glyph_init_surface_for_recording_surface (scaled_font, + scaled_glyph, + foreground_color); + } else { + status = _cairo_ft_scaled_glyph_init_surface (scaled_font, + scaled_glyph, + glyph_priv, + CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE, + face, + foreground_color, + vertical_layout, + load_flags); + } + if (unlikely (status)) + goto FAIL; + } + + if (info & CAIRO_SCALED_GLYPH_INFO_SURFACE) { + status = _cairo_ft_scaled_glyph_init_surface (scaled_font, + scaled_glyph, + glyph_priv, + CAIRO_SCALED_GLYPH_INFO_SURFACE, + face, + NULL, /* foreground color */ + vertical_layout, + load_flags); + if (unlikely (status)) + goto FAIL; + } + + if (info & CAIRO_SCALED_GLYPH_INFO_PATH) { + cairo_path_fixed_t *path = NULL; /* hide compiler warning */ + + /* Load non-color glyph */ + status = _cairo_ft_scaled_glyph_load_glyph (scaled_font, + scaled_glyph, + face, + load_flags, + FALSE, + vertical_layout); + if (unlikely (status)) + goto FAIL; + + if (face->glyph->format == FT_GLYPH_FORMAT_OUTLINE) + status = _cairo_ft_face_decompose_glyph_outline (face, &path); + else + status = CAIRO_INT_STATUS_UNSUPPORTED; + + if (unlikely (status)) + goto FAIL; + + _cairo_scaled_glyph_set_path (scaled_glyph, + &scaled_font->base, + path); + } + FAIL: + _cairo_ft_unscaled_font_unlock_face (unscaled); + + return status; +} + +static unsigned long +_cairo_ft_ucs4_to_index (void *abstract_font, + uint32_t ucs4) +{ + cairo_ft_scaled_font_t *scaled_font = abstract_font; + cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; + FT_Face face; + FT_UInt index; + + face = _cairo_ft_unscaled_font_lock_face (unscaled); + if (!face) + return 0; + +#if CAIRO_HAS_FC_FONT + index = FcFreeTypeCharIndex (face, ucs4); +#else + index = FT_Get_Char_Index (face, ucs4); +#endif + + _cairo_ft_unscaled_font_unlock_face (unscaled); + return index; +} + +static cairo_int_status_t +_cairo_ft_load_truetype_table (void *abstract_font, + unsigned long tag, + long offset, + unsigned char *buffer, + unsigned long *length) +{ + cairo_ft_scaled_font_t *scaled_font = abstract_font; + cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; + FT_Face face; + cairo_status_t status = CAIRO_INT_STATUS_UNSUPPORTED; + + /* We don't support the FreeType feature of loading a table + * without specifying the size since this may overflow our + * buffer. */ + assert (length != NULL); + + if (_cairo_ft_scaled_font_is_vertical (&scaled_font->base)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + face = _cairo_ft_unscaled_font_lock_face (unscaled); + if (!face) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (FT_IS_SFNT (face)) { + if (buffer == NULL) + *length = 0; + + if (FT_Load_Sfnt_Table (face, tag, offset, buffer, length) == 0) + status = CAIRO_STATUS_SUCCESS; + } + + _cairo_ft_unscaled_font_unlock_face (unscaled); + + return status; +} + +static cairo_int_status_t +_cairo_ft_index_to_ucs4(void *abstract_font, + unsigned long index, + uint32_t *ucs4) +{ + cairo_ft_scaled_font_t *scaled_font = abstract_font; + cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; + FT_Face face; + FT_ULong charcode; + FT_UInt gindex; + + face = _cairo_ft_unscaled_font_lock_face (unscaled); + if (!face) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + *ucs4 = (uint32_t) -1; + charcode = FT_Get_First_Char(face, &gindex); + while (gindex != 0) { + if (gindex == index) { + *ucs4 = charcode; + break; + } + charcode = FT_Get_Next_Char (face, charcode, &gindex); + } + + _cairo_ft_unscaled_font_unlock_face (unscaled); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_ft_is_synthetic (void *abstract_font, + cairo_bool_t *is_synthetic) +{ + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_ft_scaled_font_t *scaled_font = abstract_font; + cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; + FT_Face face; + FT_Error error; + + if (scaled_font->ft_options.synth_flags != 0) { + *is_synthetic = TRUE; + return status; + } + + *is_synthetic = FALSE; + face = _cairo_ft_unscaled_font_lock_face (unscaled); + if (!face) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (face->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS) { + FT_MM_Var *mm_var = NULL; + FT_Fixed *coords = NULL; + int num_axis; + int i; + + /* If this is an MM or variable font we can't assume the current outlines + * are the same as the font tables */ + *is_synthetic = TRUE; + + error = FT_Get_MM_Var (face, &mm_var); + if (error) { + status = _cairo_error (_cairo_ft_to_cairo_error (error)); + goto cleanup; + } + + num_axis = mm_var->num_axis; + coords = _cairo_malloc_ab (num_axis, sizeof(FT_Fixed)); + if (!coords) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto cleanup; + } + + /* Check if the current design coordinates are the default + * coordinates. In this case the current outlines match the + * font tables. + */ + FT_Get_Var_Blend_Coordinates (face, num_axis, coords); + *is_synthetic = FALSE; + for (i = 0; i < num_axis; i++) { + if (coords[i]) { + *is_synthetic = TRUE; + break; + } + } + + cleanup: + free (coords); + FT_Done_MM_Var (face->glyph->library, mm_var); + } + + _cairo_ft_unscaled_font_unlock_face (unscaled); + + return status; +} + +static cairo_int_status_t +_cairo_index_to_glyph_name (void *abstract_font, + char **glyph_names, + int num_glyph_names, + unsigned long glyph_index, + unsigned long *glyph_array_index) +{ + cairo_ft_scaled_font_t *scaled_font = abstract_font; + cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; + FT_Face face; + char buffer[256]; /* PLRM specifies max name length of 127 */ + FT_Error error; + int i; + + face = _cairo_ft_unscaled_font_lock_face (unscaled); + if (!face) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + error = FT_Get_Glyph_Name (face, glyph_index, buffer, sizeof buffer); + + _cairo_ft_unscaled_font_unlock_face (unscaled); + + if (error != FT_Err_Ok) { + /* propagate fatal errors from FreeType */ + if (error == FT_Err_Out_Of_Memory) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + /* FT first numbers the glyphs in the order they are read from the + * Type 1 font. Then if .notdef is not the first glyph, the first + * glyph is swapped with .notdef to ensure that .notdef is at + * glyph index 0. + * + * As all but two glyphs in glyph_names already have the same + * index as the FT glyph index, we first check if + * glyph_names[glyph_index] is the name we are looking for. If not + * we fall back to searching the entire array. + */ + + if ((long)glyph_index < num_glyph_names && + strcmp (glyph_names[glyph_index], buffer) == 0) + { + *glyph_array_index = glyph_index; + + return CAIRO_STATUS_SUCCESS; + } + + for (i = 0; i < num_glyph_names; i++) { + if (strcmp (glyph_names[i], buffer) == 0) { + *glyph_array_index = i; + + return CAIRO_STATUS_SUCCESS; + } + } + + return CAIRO_INT_STATUS_UNSUPPORTED; +} + +static cairo_bool_t +_ft_is_type1 (FT_Face face) +{ + const char *font_format = FT_Get_Font_Format (face); + if (font_format && + (strcmp (font_format, "Type 1") == 0 || + strcmp (font_format, "CFF") == 0)) + { + return TRUE; + } + + return FALSE; +} + +static cairo_int_status_t +_cairo_ft_load_type1_data (void *abstract_font, + long offset, + unsigned char *buffer, + unsigned long *length) +{ + cairo_ft_scaled_font_t *scaled_font = abstract_font; + cairo_ft_unscaled_font_t *unscaled = scaled_font->unscaled; + FT_Face face; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + unsigned long available_length; + unsigned long ret; + + assert (length != NULL); + + if (_cairo_ft_scaled_font_is_vertical (&scaled_font->base)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + face = _cairo_ft_unscaled_font_lock_face (unscaled); + if (!face) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (FT_IS_SFNT (face)) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto unlock; + } + + if (! _ft_is_type1 (face)) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto unlock; + } + + available_length = MAX (face->stream->size - offset, 0); + if (!buffer) { + *length = available_length; + } else { + if (*length > available_length) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + } else if (face->stream->read != NULL) { + /* Note that read() may be implemented as a macro, thanks POSIX!, so we + * need to wrap the following usage in parentheses in order to + * disambiguate it for the pre-processor - using the verbose function + * pointer dereference for clarity. + */ + ret = (* face->stream->read) (face->stream, + offset, + buffer, + *length); + if (ret != *length) + status = _cairo_error (CAIRO_STATUS_READ_ERROR); + } else { + memcpy (buffer, face->stream->base + offset, *length); + } + } + + unlock: + _cairo_ft_unscaled_font_unlock_face (unscaled); + + return status; +} + +static cairo_bool_t +_cairo_ft_has_color_glyphs (void *scaled) +{ + cairo_ft_unscaled_font_t *unscaled = ((cairo_ft_scaled_font_t *)scaled)->unscaled; + + if (!unscaled->have_color_set) { + FT_Face face; + face = _cairo_ft_unscaled_font_lock_face (unscaled); + if (unlikely (face == NULL)) + return FALSE; + _cairo_ft_unscaled_font_unlock_face (unscaled); + } + + return unscaled->have_color; +} + +static const cairo_scaled_font_backend_t _cairo_ft_scaled_font_backend = { + CAIRO_FONT_TYPE_FT, + _cairo_ft_scaled_font_fini, + _cairo_ft_scaled_glyph_init, + NULL, /* text_to_glyphs */ + _cairo_ft_ucs4_to_index, + _cairo_ft_load_truetype_table, + _cairo_ft_index_to_ucs4, + _cairo_ft_is_synthetic, + _cairo_index_to_glyph_name, + _cairo_ft_load_type1_data, + _cairo_ft_has_color_glyphs +}; + +/* #cairo_ft_font_face_t */ + +#if CAIRO_HAS_FC_FONT +static cairo_font_face_t * +_cairo_ft_font_face_create_for_pattern (FcPattern *pattern); + +static cairo_status_t +_cairo_ft_font_face_create_for_toy (cairo_toy_font_face_t *toy_face, + cairo_font_face_t **font_face_out) +{ + cairo_font_face_t *font_face = (cairo_font_face_t *) &_cairo_font_face_nil; + FcPattern *pattern; + int fcslant; + int fcweight; + + pattern = FcPatternCreate (); + if (!pattern) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return font_face->status; + } + + if (!FcPatternAddString (pattern, + FC_FAMILY, (unsigned char *) toy_face->family)) + { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + goto FREE_PATTERN; + } + + switch (toy_face->slant) + { + case CAIRO_FONT_SLANT_ITALIC: + fcslant = FC_SLANT_ITALIC; + break; + case CAIRO_FONT_SLANT_OBLIQUE: + fcslant = FC_SLANT_OBLIQUE; + break; + case CAIRO_FONT_SLANT_NORMAL: + default: + fcslant = FC_SLANT_ROMAN; + break; + } + + if (!FcPatternAddInteger (pattern, FC_SLANT, fcslant)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + goto FREE_PATTERN; + } + + switch (toy_face->weight) + { + case CAIRO_FONT_WEIGHT_BOLD: + fcweight = FC_WEIGHT_BOLD; + break; + case CAIRO_FONT_WEIGHT_NORMAL: + default: + fcweight = FC_WEIGHT_MEDIUM; + break; + } + + if (!FcPatternAddInteger (pattern, FC_WEIGHT, fcweight)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + goto FREE_PATTERN; + } + + font_face = _cairo_ft_font_face_create_for_pattern (pattern); + + FREE_PATTERN: + FcPatternDestroy (pattern); + + *font_face_out = font_face; + return font_face->status; +} +#endif + +static cairo_bool_t +_cairo_ft_font_face_destroy (void *abstract_face) +{ + cairo_ft_font_face_t *font_face = abstract_face; + + /* When destroying a face created by cairo_ft_font_face_create_for_ft_face, + * we have a special "zombie" state for the face when the unscaled font + * is still alive but there are no other references to a font face with + * the same FT_Face. + * + * We go from: + * + * font_face ------> unscaled + * <-....weak....../ + * + * To: + * + * font_face <------- unscaled + */ + + if (font_face->unscaled && + font_face->unscaled->from_face && + font_face->next == NULL && + font_face->unscaled->faces == font_face && + CAIRO_REFERENCE_COUNT_GET_VALUE (&font_face->unscaled->base.ref_count) > 1) + { + _cairo_unscaled_font_destroy (&font_face->unscaled->base); + font_face->unscaled = NULL; + + return FALSE; + } + + if (font_face->unscaled) { + cairo_ft_font_face_t *tmp_face = NULL; + cairo_ft_font_face_t *last_face = NULL; + + /* Remove face from linked list */ + for (tmp_face = font_face->unscaled->faces; + tmp_face; + tmp_face = tmp_face->next) + { + if (tmp_face == font_face) { + if (last_face) + last_face->next = tmp_face->next; + else + font_face->unscaled->faces = tmp_face->next; + } + + last_face = tmp_face; + } + + _cairo_unscaled_font_destroy (&font_face->unscaled->base); + font_face->unscaled = NULL; + } + + _cairo_ft_options_fini (&font_face->ft_options); + +#if CAIRO_HAS_FC_FONT + if (font_face->pattern) { + FcPatternDestroy (font_face->pattern); + cairo_font_face_destroy (font_face->resolved_font_face); + } +#endif + + return TRUE; +} + +static cairo_font_face_t * +_cairo_ft_font_face_get_implementation (void *abstract_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options) +{ + /* The handling of font options is different depending on how the + * font face was created. When the user creates a font face with + * cairo_ft_font_face_create_for_ft_face(), then the load flags + * passed in augment the load flags for the options. But for + * cairo_ft_font_face_create_for_pattern(), the load flags are + * derived from a pattern where the user has called + * cairo_ft_font_options_substitute(), so *just* use those load + * flags and ignore the options. + */ + +#if CAIRO_HAS_FC_FONT + cairo_ft_font_face_t *font_face = abstract_face; + + /* If we have an unresolved pattern, resolve it and create + * unscaled font. Otherwise, use the ones stored in font_face. + */ + if (font_face->pattern) { + cairo_font_face_t *resolved; + + /* Cache the resolved font whilst the FcConfig remains consistent. */ + resolved = font_face->resolved_font_face; + if (resolved != NULL) { + if (! FcInitBringUptoDate ()) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_font_face_t *) &_cairo_font_face_nil; + } + + if (font_face->resolved_config == FcConfigGetCurrent ()) + return cairo_font_face_reference (resolved); + + cairo_font_face_destroy (resolved); + font_face->resolved_font_face = NULL; + } + + resolved = _cairo_ft_resolve_pattern (font_face->pattern, + font_matrix, + ctm, + options); + if (unlikely (resolved->status)) + return resolved; + + font_face->resolved_font_face = cairo_font_face_reference (resolved); + font_face->resolved_config = FcConfigGetCurrent (); + + return resolved; + } +#endif + + return abstract_face; +} + +const cairo_font_face_backend_t _cairo_ft_font_face_backend = { + CAIRO_FONT_TYPE_FT, +#if CAIRO_HAS_FC_FONT + _cairo_ft_font_face_create_for_toy, +#else + NULL, +#endif + _cairo_ft_font_face_destroy, + _cairo_ft_font_face_scaled_font_create, + _cairo_ft_font_face_get_implementation +}; + +#if CAIRO_HAS_FC_FONT +static cairo_font_face_t * +_cairo_ft_font_face_create_for_pattern (FcPattern *pattern) +{ + cairo_ft_font_face_t *font_face; + + font_face = _cairo_calloc (sizeof (cairo_ft_font_face_t)); + if (unlikely (font_face == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_font_face_t *) &_cairo_font_face_nil; + } + + font_face->unscaled = NULL; + + _get_pattern_ft_options (pattern, &font_face->ft_options); + + font_face->next = NULL; + + font_face->pattern = FcPatternDuplicate (pattern); + if (unlikely (font_face->pattern == NULL)) { + free (font_face); + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_font_face_t *) &_cairo_font_face_nil; + } + + font_face->resolved_font_face = NULL; + font_face->resolved_config = NULL; + + _cairo_font_face_init (&font_face->base, &_cairo_ft_font_face_backend); + + return &font_face->base; +} +#endif + +static cairo_font_face_t * +_cairo_ft_font_face_create (cairo_ft_unscaled_font_t *unscaled, + cairo_ft_options_t *ft_options) +{ + cairo_ft_font_face_t *font_face, **prev_font_face; + + /* Looked for an existing matching font face */ + for (font_face = unscaled->faces, prev_font_face = &unscaled->faces; + font_face; + prev_font_face = &font_face->next, font_face = font_face->next) + { + if (font_face->ft_options.load_flags == ft_options->load_flags && + font_face->ft_options.synth_flags == ft_options->synth_flags && + cairo_font_options_equal (&font_face->ft_options.base, &ft_options->base)) + { + if (font_face->base.status) { + /* The font_face has been left in an error state, abandon it. */ + *prev_font_face = font_face->next; + break; + } + + if (font_face->unscaled == NULL) { + /* Resurrect this "zombie" font_face (from + * _cairo_ft_font_face_destroy), switching its unscaled_font + * from owner to ownee. */ + font_face->unscaled = unscaled; + _cairo_unscaled_font_reference (&unscaled->base); + return &font_face->base; + } else + return cairo_font_face_reference (&font_face->base); + } + } + + /* No match found, create a new one */ + font_face = _cairo_calloc (sizeof (cairo_ft_font_face_t)); + if (unlikely (!font_face)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_font_face_t *)&_cairo_font_face_nil; + } + + font_face->unscaled = unscaled; + _cairo_unscaled_font_reference (&unscaled->base); + + _cairo_ft_options_init_copy (&font_face->ft_options, ft_options); + + if (unscaled->faces && unscaled->faces->unscaled == NULL) { + /* This "zombie" font_face (from _cairo_ft_font_face_destroy) + * is no longer needed. */ + assert (unscaled->from_face && unscaled->faces->next == NULL); + cairo_font_face_destroy (&unscaled->faces->base); + unscaled->faces = NULL; + } + + font_face->next = unscaled->faces; + unscaled->faces = font_face; + +#if CAIRO_HAS_FC_FONT + font_face->pattern = NULL; +#endif + + _cairo_font_face_init (&font_face->base, &_cairo_ft_font_face_backend); + + return &font_face->base; +} + +/* implement the platform-specific interface */ + +#if CAIRO_HAS_FC_FONT +static cairo_status_t +_cairo_ft_font_options_substitute (const cairo_font_options_t *options, + FcPattern *pattern) +{ + FcValue v; + + if (options->antialias != CAIRO_ANTIALIAS_DEFAULT) + { + if (FcPatternGet (pattern, FC_ANTIALIAS, 0, &v) == FcResultNoMatch) + { + if (! FcPatternAddBool (pattern, + FC_ANTIALIAS, + options->antialias != CAIRO_ANTIALIAS_NONE)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (options->antialias != CAIRO_ANTIALIAS_SUBPIXEL) { + FcPatternDel (pattern, FC_RGBA); + if (! FcPatternAddInteger (pattern, FC_RGBA, FC_RGBA_NONE)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + } + } + + if (options->antialias != CAIRO_ANTIALIAS_DEFAULT) + { + if (FcPatternGet (pattern, FC_RGBA, 0, &v) == FcResultNoMatch) + { + int rgba; + + if (options->antialias == CAIRO_ANTIALIAS_SUBPIXEL) { + switch (options->subpixel_order) { + case CAIRO_SUBPIXEL_ORDER_DEFAULT: + case CAIRO_SUBPIXEL_ORDER_RGB: + default: + rgba = FC_RGBA_RGB; + break; + case CAIRO_SUBPIXEL_ORDER_BGR: + rgba = FC_RGBA_BGR; + break; + case CAIRO_SUBPIXEL_ORDER_VRGB: + rgba = FC_RGBA_VRGB; + break; + case CAIRO_SUBPIXEL_ORDER_VBGR: + rgba = FC_RGBA_VBGR; + break; + } + } else { + rgba = FC_RGBA_NONE; + } + + if (! FcPatternAddInteger (pattern, FC_RGBA, rgba)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + } + + if (options->lcd_filter != CAIRO_LCD_FILTER_DEFAULT) + { + if (FcPatternGet (pattern, FC_LCD_FILTER, 0, &v) == FcResultNoMatch) + { + int lcd_filter; + + switch (options->lcd_filter) { + case CAIRO_LCD_FILTER_NONE: + lcd_filter = FT_LCD_FILTER_NONE; + break; + case CAIRO_LCD_FILTER_INTRA_PIXEL: + lcd_filter = FT_LCD_FILTER_LEGACY; + break; + case CAIRO_LCD_FILTER_FIR3: + lcd_filter = FT_LCD_FILTER_LIGHT; + break; + default: + case CAIRO_LCD_FILTER_DEFAULT: + case CAIRO_LCD_FILTER_FIR5: + lcd_filter = FT_LCD_FILTER_DEFAULT; + break; + } + + if (! FcPatternAddInteger (pattern, FC_LCD_FILTER, lcd_filter)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + } + + if (options->hint_style != CAIRO_HINT_STYLE_DEFAULT) + { + if (FcPatternGet (pattern, FC_HINTING, 0, &v) == FcResultNoMatch) + { + if (! FcPatternAddBool (pattern, + FC_HINTING, + options->hint_style != CAIRO_HINT_STYLE_NONE)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + if (FcPatternGet (pattern, FC_HINT_STYLE, 0, &v) == FcResultNoMatch) + { + int hint_style; + + switch (options->hint_style) { + case CAIRO_HINT_STYLE_NONE: + hint_style = FC_HINT_NONE; + break; + case CAIRO_HINT_STYLE_SLIGHT: + hint_style = FC_HINT_SLIGHT; + break; + case CAIRO_HINT_STYLE_MEDIUM: + hint_style = FC_HINT_MEDIUM; + break; + case CAIRO_HINT_STYLE_FULL: + case CAIRO_HINT_STYLE_DEFAULT: + default: + hint_style = FC_HINT_FULL; + break; + } + + if (! FcPatternAddInteger (pattern, FC_HINT_STYLE, hint_style)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + } + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_ft_font_options_substitute: + * @options: a #cairo_font_options_t object + * @pattern: an existing #FcPattern + * + * Add options to a #FcPattern based on a #cairo_font_options_t font + * options object. Options that are already in the pattern, are not overridden, + * so you should call this function after calling FcConfigSubstitute() (the + * user's settings should override options based on the surface type), but + * before calling FcDefaultSubstitute(). + * + * Since: 1.0 + **/ +void +cairo_ft_font_options_substitute (const cairo_font_options_t *options, + FcPattern *pattern) +{ + if (cairo_font_options_status ((cairo_font_options_t *) options)) + return; + + _cairo_ft_font_options_substitute (options, pattern); +} + +static cairo_font_face_t * +_cairo_ft_resolve_pattern (FcPattern *pattern, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *font_options) +{ + cairo_status_t status; + + cairo_matrix_t scale; + FcPattern *resolved; + cairo_ft_font_transform_t sf; + FcResult result; + cairo_ft_unscaled_font_t *unscaled; + cairo_ft_options_t ft_options; + cairo_font_face_t *font_face; + + scale = *ctm; + scale.x0 = scale.y0 = 0; + cairo_matrix_multiply (&scale, + font_matrix, + &scale); + + status = _compute_transform (&sf, &scale, NULL); + if (unlikely (status)) + return (cairo_font_face_t *)&_cairo_font_face_nil; + + pattern = FcPatternDuplicate (pattern); + if (pattern == NULL) + return (cairo_font_face_t *)&_cairo_font_face_nil; + + if (! FcPatternAddDouble (pattern, FC_PIXEL_SIZE, sf.y_scale)) { + font_face = (cairo_font_face_t *)&_cairo_font_face_nil; + goto FREE_PATTERN; + } + + if (! FcConfigSubstitute (NULL, pattern, FcMatchPattern)) { + font_face = (cairo_font_face_t *)&_cairo_font_face_nil; + goto FREE_PATTERN; + } + + status = _cairo_ft_font_options_substitute (font_options, pattern); + if (status) { + font_face = (cairo_font_face_t *)&_cairo_font_face_nil; + goto FREE_PATTERN; + } + + FcDefaultSubstitute (pattern); + + status = _cairo_ft_unscaled_font_create_for_pattern (pattern, &unscaled); + if (unlikely (status)) { + font_face = (cairo_font_face_t *)&_cairo_font_face_nil; + goto FREE_PATTERN; + } + + if (unscaled == NULL) { + resolved = FcFontMatch (NULL, pattern, &result); + if (!resolved) { + /* We failed to find any font. Substitute twin so that the user can + * see something (and hopefully recognise that the font is missing) + * and not just receive a NO_MEMORY error during rendering. + */ + font_face = _cairo_font_face_twin_create_fallback (); + goto FREE_PATTERN; + } + + status = _cairo_ft_unscaled_font_create_for_pattern (resolved, &unscaled); + if (unlikely (status || unscaled == NULL)) { + font_face = (cairo_font_face_t *)&_cairo_font_face_nil; + goto FREE_RESOLVED; + } + } else + resolved = pattern; + + _get_pattern_ft_options (resolved, &ft_options); + font_face = _cairo_ft_font_face_create (unscaled, &ft_options); + _cairo_ft_options_fini (&ft_options); + _cairo_unscaled_font_destroy (&unscaled->base); + +FREE_RESOLVED: + if (resolved != pattern) + FcPatternDestroy (resolved); + +FREE_PATTERN: + FcPatternDestroy (pattern); + + return font_face; +} + +/** + * cairo_ft_font_face_create_for_pattern: + * @pattern: A fontconfig pattern. Cairo makes a copy of the pattern + * if it needs to. You are free to modify or free @pattern after this call. + * + * Creates a new font face for the FreeType font backend based on a + * fontconfig pattern. This font can then be used with + * cairo_set_font_face() or cairo_scaled_font_create(). The + * #cairo_scaled_font_t returned from cairo_scaled_font_create() is + * also for the FreeType backend and can be used with functions such + * as cairo_ft_scaled_font_lock_face(). + * + * Font rendering options are represented both here and when you + * call cairo_scaled_font_create(). Font options that have a representation + * in a #FcPattern must be passed in here; to modify #FcPattern + * appropriately to reflect the options in a #cairo_font_options_t, call + * cairo_ft_font_options_substitute(). + * + * The pattern's FC_FT_FACE element is inspected first and if that is set, + * that will be the FreeType font face associated with the returned cairo + * font face. Otherwise the FC_FILE element is checked. If it's set, + * that and the value of the FC_INDEX element (defaults to zero) of @pattern + * are used to load a font face from file. + * + * If both steps from the previous paragraph fails, @pattern will be passed + * to FcConfigSubstitute, FcDefaultSubstitute, and finally FcFontMatch, + * and the resulting font pattern is used. + * + * If the FC_FT_FACE element of @pattern is set, the user is responsible + * for making sure that the referenced FT_Face remains valid for the life + * time of the returned #cairo_font_face_t. See + * cairo_ft_font_face_create_for_ft_face() for an example of how to couple + * the life time of the FT_Face to that of the cairo font-face. + * + * Return value: a newly created #cairo_font_face_t. Free with + * cairo_font_face_destroy() when you are done using it. + * + * Since: 1.0 + **/ +cairo_font_face_t * +cairo_ft_font_face_create_for_pattern (FcPattern *pattern) +{ + cairo_ft_unscaled_font_t *unscaled; + cairo_font_face_t *font_face; + cairo_ft_options_t ft_options; + cairo_status_t status; + + status = _cairo_ft_unscaled_font_create_for_pattern (pattern, &unscaled); + if (unlikely (status)) { + if (status == CAIRO_STATUS_FILE_NOT_FOUND) + return (cairo_font_face_t *) &_cairo_font_face_nil_file_not_found; + else + return (cairo_font_face_t *) &_cairo_font_face_nil; + } + if (unlikely (unscaled == NULL)) { + /* Store the pattern. We will resolve it and create unscaled + * font when creating scaled fonts */ + return _cairo_ft_font_face_create_for_pattern (pattern); + } + + _get_pattern_ft_options (pattern, &ft_options); + font_face = _cairo_ft_font_face_create (unscaled, &ft_options); + _cairo_ft_options_fini (&ft_options); + _cairo_unscaled_font_destroy (&unscaled->base); + + return font_face; +} +#endif + +/** + * cairo_ft_font_face_create_for_ft_face: + * @face: A FreeType face object, already opened. This must + * be kept around until the face's ref_count drops to + * zero and it is freed. Since the face may be referenced + * internally to Cairo, the best way to determine when it + * is safe to free the face is to pass a + * #cairo_destroy_func_t to cairo_font_face_set_user_data() + * @load_flags: flags to pass to FT_Load_Glyph when loading + * glyphs from the font. These flags are OR'ed together with + * the flags derived from the #cairo_font_options_t passed + * to cairo_scaled_font_create(), so only a few values such + * as %FT_LOAD_VERTICAL_LAYOUT, and %FT_LOAD_FORCE_AUTOHINT + * are useful. You should not pass any of the flags affecting + * the load target, such as %FT_LOAD_TARGET_LIGHT. + * + * Creates a new font face for the FreeType font backend from a + * pre-opened FreeType face. This font can then be used with + * cairo_set_font_face() or cairo_scaled_font_create(). The + * #cairo_scaled_font_t returned from cairo_scaled_font_create() is + * also for the FreeType backend and can be used with functions such + * as cairo_ft_scaled_font_lock_face(). Note that Cairo may keep a reference + * to the FT_Face alive in a font-cache and the exact lifetime of the reference + * depends highly upon the exact usage pattern and is subject to external + * factors. You must not call FT_Done_Face() before the last reference to the + * #cairo_font_face_t has been dropped. + * + * As an example, below is how one might correctly couple the lifetime of + * the FreeType face object to the #cairo_font_face_t. + * + * + * static const cairo_user_data_key_t key; + * + * font_face = cairo_ft_font_face_create_for_ft_face (ft_face, 0); + * status = cairo_font_face_set_user_data (font_face, &key, + * ft_face, (cairo_destroy_func_t) FT_Done_Face); + * if (status) { + * cairo_font_face_destroy (font_face); + * FT_Done_Face (ft_face); + * return ERROR; + * } + * + * + * Return value: a newly created #cairo_font_face_t. Free with + * cairo_font_face_destroy() when you are done using it. + * + * Since: 1.0 + **/ +cairo_font_face_t * +cairo_ft_font_face_create_for_ft_face (FT_Face face, + int load_flags) +{ + cairo_ft_unscaled_font_t *unscaled; + cairo_font_face_t *font_face; + cairo_ft_options_t ft_options; + cairo_status_t status; + + status = _cairo_ft_unscaled_font_create_from_face (face, &unscaled); + if (unlikely (status)) + return (cairo_font_face_t *)&_cairo_font_face_nil; + + ft_options.load_flags = load_flags; + ft_options.synth_flags = 0; + _cairo_font_options_init_default (&ft_options.base); + + font_face = _cairo_ft_font_face_create (unscaled, &ft_options); + _cairo_unscaled_font_destroy (&unscaled->base); + + return font_face; +} + +/** + * cairo_ft_font_face_set_synthesize: + * @font_face: The #cairo_ft_font_face_t object to modify + * @synth_flags: the set of synthesis options to enable + * + * FreeType provides the ability to synthesize different glyphs from a base + * font, which is useful if you lack those glyphs from a true bold or oblique + * font. See also #cairo_ft_synthesize_t. + * + * Since: 1.12 + **/ +void +cairo_ft_font_face_set_synthesize (cairo_font_face_t *font_face, + unsigned int synth_flags) +{ + cairo_ft_font_face_t *ft; + + if (font_face->backend->type != CAIRO_FONT_TYPE_FT) + return; + + ft = (cairo_ft_font_face_t *) font_face; + ft->ft_options.synth_flags |= synth_flags; +} + +/** + * cairo_ft_font_face_unset_synthesize: + * @font_face: The #cairo_ft_font_face_t object to modify + * @synth_flags: the set of synthesis options to disable + * + * See cairo_ft_font_face_set_synthesize(). + * + * Since: 1.12 + **/ +void +cairo_ft_font_face_unset_synthesize (cairo_font_face_t *font_face, + unsigned int synth_flags) +{ + cairo_ft_font_face_t *ft; + + if (font_face->backend->type != CAIRO_FONT_TYPE_FT) + return; + + ft = (cairo_ft_font_face_t *) font_face; + ft->ft_options.synth_flags &= ~synth_flags; +} + +/** + * cairo_ft_font_face_get_synthesize: + * @font_face: The #cairo_ft_font_face_t object to query + * + * See #cairo_ft_synthesize_t. + * + * Returns: the current set of synthesis options. + * + * Since: 1.12 + **/ +unsigned int +cairo_ft_font_face_get_synthesize (cairo_font_face_t *font_face) +{ + cairo_ft_font_face_t *ft; + + if (font_face->backend->type != CAIRO_FONT_TYPE_FT) + return 0; + + ft = (cairo_ft_font_face_t *) font_face; + return ft->ft_options.synth_flags; +} + +/** + * cairo_ft_scaled_font_lock_face: + * @scaled_font: A #cairo_scaled_font_t from the FreeType font backend. Such an + * object can be created by calling cairo_scaled_font_create() on a + * FreeType backend font face (see cairo_ft_font_face_create_for_pattern(), + * cairo_ft_font_face_create_for_ft_face()). + * + * cairo_ft_scaled_font_lock_face() gets the #FT_Face object from a FreeType + * backend font and scales it appropriately for the font and applies OpenType + * font variations if applicable. You must + * release the face with cairo_ft_scaled_font_unlock_face() + * when you are done using it. Since the #FT_Face object can be + * shared between multiple #cairo_scaled_font_t objects, you must not + * lock any other font objects until you unlock this one. A count is + * kept of the number of times cairo_ft_scaled_font_lock_face() is + * called. cairo_ft_scaled_font_unlock_face() must be called the same number + * of times. + * + * You must be careful when using this function in a library or in a + * threaded application, because freetype's design makes it unsafe to + * call freetype functions simultaneously from multiple threads, (even + * if using distinct FT_Face objects). Because of this, application + * code that acquires an FT_Face object with this call must add its + * own locking to protect any use of that object, (and which also must + * protect any other calls into cairo as almost any cairo function + * might result in a call into the freetype library). + * + * Return value: The #FT_Face object for @font, scaled appropriately, + * or %NULL if @scaled_font is in an error state (see + * cairo_scaled_font_status()) or there is insufficient memory. + * + * Since: 1.0 + **/ +FT_Face +cairo_ft_scaled_font_lock_face (cairo_scaled_font_t *abstract_font) +{ + cairo_ft_scaled_font_t *scaled_font = (cairo_ft_scaled_font_t *) abstract_font; + FT_Face face; + cairo_status_t status; + + if (! _cairo_scaled_font_is_ft (abstract_font)) { + _cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH); + return NULL; + } + + if (scaled_font->base.status) + return NULL; + + face = _cairo_ft_unscaled_font_lock_face (scaled_font->unscaled); + if (unlikely (face == NULL)) { + status = _cairo_scaled_font_set_error (&scaled_font->base, CAIRO_STATUS_NO_MEMORY); + return NULL; + } + + status = _cairo_ft_unscaled_font_set_scale (scaled_font->unscaled, + &scaled_font->base.scale); + if (unlikely (status)) { + _cairo_ft_unscaled_font_unlock_face (scaled_font->unscaled); + status = _cairo_scaled_font_set_error (&scaled_font->base, status); + return NULL; + } + + cairo_ft_apply_variations (face, scaled_font); + + /* Note: We deliberately release the unscaled font's mutex here, + * so that we are not holding a lock across two separate calls to + * cairo function, (which would give the application some + * opportunity for creating deadlock. This is obviously unsafe, + * but as documented, the user must add manual locking when using + * this function. */ + CAIRO_MUTEX_UNLOCK (scaled_font->unscaled->mutex); + + return face; +} + +/** + * cairo_ft_scaled_font_unlock_face: + * @scaled_font: A #cairo_scaled_font_t from the FreeType font backend. Such an + * object can be created by calling cairo_scaled_font_create() on a + * FreeType backend font face (see cairo_ft_font_face_create_for_pattern(), + * cairo_ft_font_face_create_for_ft_face()). + * + * Releases a face obtained with cairo_ft_scaled_font_lock_face(). + * + * Since: 1.0 + **/ +void +cairo_ft_scaled_font_unlock_face (cairo_scaled_font_t *abstract_font) +{ + cairo_ft_scaled_font_t *scaled_font = (cairo_ft_scaled_font_t *) abstract_font; + + if (! _cairo_scaled_font_is_ft (abstract_font)) { + _cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH); + return; + } + + if (scaled_font->base.status) + return; + + /* Note: We released the unscaled font's mutex at the end of + * cairo_ft_scaled_font_lock_face, so we have to acquire it again + * as _cairo_ft_unscaled_font_unlock_face expects it to be held + * when we call into it. */ + CAIRO_MUTEX_LOCK (scaled_font->unscaled->mutex); + + _cairo_ft_unscaled_font_unlock_face (scaled_font->unscaled); +} + +static cairo_bool_t +_cairo_ft_scaled_font_is_vertical (cairo_scaled_font_t *scaled_font) +{ + cairo_ft_scaled_font_t *ft_scaled_font; + + if (!_cairo_scaled_font_is_ft (scaled_font)) + return FALSE; + + ft_scaled_font = (cairo_ft_scaled_font_t *) scaled_font; + if (ft_scaled_font->ft_options.load_flags & FT_LOAD_VERTICAL_LAYOUT) + return TRUE; + return FALSE; +} + +unsigned int +_cairo_ft_scaled_font_get_load_flags (cairo_scaled_font_t *scaled_font) +{ + cairo_ft_scaled_font_t *ft_scaled_font; + + if (! _cairo_scaled_font_is_ft (scaled_font)) + return 0; + + ft_scaled_font = (cairo_ft_scaled_font_t *) scaled_font; + return ft_scaled_font->ft_options.load_flags; +} + +void +_cairo_ft_font_reset_static_data (void) +{ + _cairo_ft_unscaled_font_map_destroy (); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-ft-private.h b/local/recipes/libs/cairo/source/src/cairo-ft-private.h new file mode 100644 index 0000000000..6b0e302233 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-ft-private.h @@ -0,0 +1,99 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Graydon Hoare + * Owen Taylor + */ + +#ifndef CAIRO_FT_PRIVATE_H +#define CAIRO_FT_PRIVATE_H + +#include "cairoint.h" +#include "cairo-ft.h" + +#if CAIRO_HAS_FT_FONT + +#include FT_COLOR_H + +CAIRO_BEGIN_DECLS + +typedef struct _cairo_ft_unscaled_font cairo_ft_unscaled_font_t; + +cairo_private cairo_bool_t +_cairo_scaled_font_is_ft (cairo_scaled_font_t *scaled_font); + +/* These functions are needed by the PDF backend, which needs to keep track of the + * the different fonts-on-disk used by a document, so it can embed them + */ +cairo_private unsigned int +_cairo_ft_scaled_font_get_load_flags (cairo_scaled_font_t *scaled_font); + +cairo_private cairo_status_t +_cairo_ft_to_cairo_error (FT_Error error); + +cairo_private cairo_status_t +_cairo_ft_face_decompose_glyph_outline (FT_Face face, + cairo_path_fixed_t **pathp); + +#if HAVE_FT_SVG_DOCUMENT + +typedef struct FT_Color_ FT_Color; + +cairo_private cairo_status_t +_cairo_render_svg_glyph (const char *svg_document, + unsigned long first_glyph, + unsigned long last_glyph, + unsigned long glyph, + double units_per_em, + FT_Color *palette, + int num_palette_entries, + cairo_t *cr, + cairo_pattern_t *foreground_source, + cairo_bool_t *foreground_source_used); +#endif + +#if HAVE_FT_COLR_V1 +cairo_private cairo_status_t +_cairo_render_colr_v1_glyph (FT_Face face, + unsigned long glyph, + FT_Color *palette, + int num_palette_entries, + cairo_t *cr, + cairo_pattern_t *foreground_source, + cairo_bool_t *foreground_source_used); +#endif + +CAIRO_END_DECLS + +#endif /* CAIRO_HAS_FT_FONT */ +#endif /* CAIRO_FT_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-ft.h b/local/recipes/libs/cairo/source/src/cairo-ft.h new file mode 100644 index 0000000000..a23e0320e5 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-ft.h @@ -0,0 +1,118 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Graydon Hoare + * Owen Taylor + */ + +#ifndef CAIRO_FT_H +#define CAIRO_FT_H + +#include "cairo.h" + +#if CAIRO_HAS_FT_FONT + +/* Fontconfig/FreeType platform-specific font interface */ + +#include +#include FT_FREETYPE_H + +#if CAIRO_HAS_FC_FONT +#include +#endif + +CAIRO_BEGIN_DECLS + +cairo_public cairo_font_face_t * +cairo_ft_font_face_create_for_ft_face (FT_Face face, + int load_flags); + +/** + * cairo_ft_synthesize_t: + * @CAIRO_FT_SYNTHESIZE_BOLD: Embolden the glyphs (redraw with a pixel offset) + * @CAIRO_FT_SYNTHESIZE_OBLIQUE: Slant the glyph outline by 12 degrees to the + * right. + * + * A set of synthesis options to control how FreeType renders the glyphs + * for a particular font face. + * + * Individual synthesis features of a #cairo_ft_font_face_t can be set + * using cairo_ft_font_face_set_synthesize(), or disabled using + * cairo_ft_font_face_unset_synthesize(). The currently enabled set of + * synthesis options can be queried with cairo_ft_font_face_get_synthesize(). + * + * Note: that when synthesizing glyphs, the font metrics returned will only + * be estimates. + * + * Since: 1.12 + **/ +typedef enum { + CAIRO_FT_SYNTHESIZE_BOLD = 1 << 0, + CAIRO_FT_SYNTHESIZE_OBLIQUE = 1 << 1 +} cairo_ft_synthesize_t; + +cairo_public void +cairo_ft_font_face_set_synthesize (cairo_font_face_t *font_face, + unsigned int synth_flags); + +cairo_public void +cairo_ft_font_face_unset_synthesize (cairo_font_face_t *font_face, + unsigned int synth_flags); + +cairo_public unsigned int +cairo_ft_font_face_get_synthesize (cairo_font_face_t *font_face); + + +cairo_public FT_Face +cairo_ft_scaled_font_lock_face (cairo_scaled_font_t *scaled_font); + +cairo_public void +cairo_ft_scaled_font_unlock_face (cairo_scaled_font_t *scaled_font); + +#if CAIRO_HAS_FC_FONT + +cairo_public cairo_font_face_t * +cairo_ft_font_face_create_for_pattern (FcPattern *pattern); + +cairo_public void +cairo_ft_font_options_substitute (const cairo_font_options_t *options, + FcPattern *pattern); + +#endif + +CAIRO_END_DECLS + +#else /* CAIRO_HAS_FT_FONT */ +# error Cairo was not compiled with support for the freetype font backend +#endif /* CAIRO_HAS_FT_FONT */ + +#endif /* CAIRO_FT_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-gstate-private.h b/local/recipes/libs/cairo/source/src/cairo-gstate-private.h new file mode 100644 index 0000000000..fe1556b038 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-gstate-private.h @@ -0,0 +1,402 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_GSTATE_PRIVATE_H +#define CAIRO_GSTATE_PRIVATE_H + +#include "cairo-clip-private.h" + +struct _cairo_gstate { + cairo_operator_t op; + + double opacity; + double tolerance; + cairo_antialias_t antialias; + + cairo_stroke_style_t stroke_style; + + cairo_fill_rule_t fill_rule; + + cairo_font_face_t *font_face; + cairo_scaled_font_t *scaled_font; /* Specific to the current CTM */ + cairo_scaled_font_t *previous_scaled_font; /* holdover */ + cairo_matrix_t font_matrix; + cairo_font_options_t font_options; + + cairo_clip_t *clip; + + cairo_surface_t *target; /* The target to which all rendering is directed */ + cairo_surface_t *parent_target; /* The previous target which was receiving rendering */ + cairo_surface_t *original_target; /* The original target the initial gstate was created with */ + + /* the user is allowed to update the device after we have cached the matrices... */ + cairo_observer_t device_transform_observer; + + cairo_matrix_t ctm; + cairo_matrix_t ctm_inverse; + cairo_matrix_t source_ctm_inverse; /* At the time ->source was set */ + cairo_bool_t is_identity; + + cairo_pattern_t *source; + + struct _cairo_gstate *next; +}; + +/* cairo-gstate.c */ +cairo_private cairo_status_t +_cairo_gstate_init (cairo_gstate_t *gstate, + cairo_surface_t *target); + +cairo_private void +_cairo_gstate_fini (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_save (cairo_gstate_t **gstate, cairo_gstate_t **freelist); + +cairo_private cairo_status_t +_cairo_gstate_restore (cairo_gstate_t **gstate, cairo_gstate_t **freelist); + +cairo_private cairo_bool_t +_cairo_gstate_is_group (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_redirect_target (cairo_gstate_t *gstate, cairo_surface_t *child); + +cairo_private cairo_surface_t * +_cairo_gstate_get_target (cairo_gstate_t *gstate); + +cairo_private cairo_surface_t * +_cairo_gstate_get_original_target (cairo_gstate_t *gstate); + +cairo_private cairo_clip_t * +_cairo_gstate_get_clip (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_set_source (cairo_gstate_t *gstate, cairo_pattern_t *source); + +cairo_private cairo_pattern_t * +_cairo_gstate_get_source (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_set_operator (cairo_gstate_t *gstate, cairo_operator_t op); + +cairo_private cairo_operator_t +_cairo_gstate_get_operator (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_set_opacity (cairo_gstate_t *gstate, double opacity); + +cairo_private double +_cairo_gstate_get_opacity (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_set_tolerance (cairo_gstate_t *gstate, double tolerance); + +cairo_private double +_cairo_gstate_get_tolerance (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_set_fill_rule (cairo_gstate_t *gstate, cairo_fill_rule_t fill_rule); + +cairo_private cairo_fill_rule_t +_cairo_gstate_get_fill_rule (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_set_line_width (cairo_gstate_t *gstate, double width); + +cairo_private double +_cairo_gstate_get_line_width (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_set_hairline (cairo_gstate_t *gstate, cairo_bool_t set_hairline); + +cairo_private cairo_bool_t +_cairo_gstate_get_hairline (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_set_line_cap (cairo_gstate_t *gstate, cairo_line_cap_t line_cap); + +cairo_private cairo_line_cap_t +_cairo_gstate_get_line_cap (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_set_line_join (cairo_gstate_t *gstate, cairo_line_join_t line_join); + +cairo_private cairo_line_join_t +_cairo_gstate_get_line_join (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_set_dash (cairo_gstate_t *gstate, const double *dash, int num_dashes, double offset); + +cairo_private void +_cairo_gstate_get_dash (cairo_gstate_t *gstate, double *dash, int *num_dashes, double *offset); + +cairo_private cairo_status_t +_cairo_gstate_set_miter_limit (cairo_gstate_t *gstate, double limit); + +cairo_private double +_cairo_gstate_get_miter_limit (cairo_gstate_t *gstate); + +cairo_private void +_cairo_gstate_get_matrix (cairo_gstate_t *gstate, cairo_matrix_t *matrix); + +cairo_private cairo_status_t +_cairo_gstate_translate (cairo_gstate_t *gstate, double tx, double ty); + +cairo_private cairo_status_t +_cairo_gstate_scale (cairo_gstate_t *gstate, double sx, double sy); + +cairo_private cairo_status_t +_cairo_gstate_rotate (cairo_gstate_t *gstate, double angle); + +cairo_private cairo_status_t +_cairo_gstate_transform (cairo_gstate_t *gstate, + const cairo_matrix_t *matrix); + +cairo_private cairo_status_t +_cairo_gstate_set_matrix (cairo_gstate_t *gstate, + const cairo_matrix_t *matrix); + +cairo_private void +_cairo_gstate_identity_matrix (cairo_gstate_t *gstate); + +cairo_private void +_cairo_gstate_user_to_device (cairo_gstate_t *gstate, double *x, double *y); + +cairo_private void +_cairo_gstate_user_to_device_distance (cairo_gstate_t *gstate, double *dx, double *dy); + +cairo_private void +_cairo_gstate_device_to_user (cairo_gstate_t *gstate, double *x, double *y); + +cairo_private void +_cairo_gstate_device_to_user_distance (cairo_gstate_t *gstate, double *dx, double *dy); + +cairo_private void +_do_cairo_gstate_user_to_backend (cairo_gstate_t *gstate, double *x, double *y); + +static inline void +_cairo_gstate_user_to_backend (cairo_gstate_t *gstate, double *x, double *y) +{ + if (! gstate->is_identity) + _do_cairo_gstate_user_to_backend (gstate, x, y); +} + +cairo_private void +_do_cairo_gstate_user_to_backend_distance (cairo_gstate_t *gstate, double *x, double *y); + +static inline void +_cairo_gstate_user_to_backend_distance (cairo_gstate_t *gstate, double *x, double *y) +{ + if (! gstate->is_identity) + _do_cairo_gstate_user_to_backend_distance (gstate, x, y); +} + +cairo_private void +_do_cairo_gstate_backend_to_user (cairo_gstate_t *gstate, double *x, double *y); + +static inline void +_cairo_gstate_backend_to_user (cairo_gstate_t *gstate, double *x, double *y) +{ + if (! gstate->is_identity) + _do_cairo_gstate_backend_to_user (gstate, x, y); +} + +cairo_private void +_do_cairo_gstate_backend_to_user_distance (cairo_gstate_t *gstate, double *x, double *y); + +static inline void +_cairo_gstate_backend_to_user_distance (cairo_gstate_t *gstate, double *x, double *y) +{ + if (! gstate->is_identity) + _do_cairo_gstate_backend_to_user_distance (gstate, x, y); +} + +cairo_private void +_cairo_gstate_backend_to_user_rectangle (cairo_gstate_t *gstate, + double *x1, double *y1, + double *x2, double *y2, + cairo_bool_t *is_tight); + +cairo_private void +_cairo_gstate_path_extents (cairo_gstate_t *gstate, + cairo_path_fixed_t *path, + double *x1, double *y1, + double *x2, double *y2); + +cairo_private cairo_status_t +_cairo_gstate_paint (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_mask (cairo_gstate_t *gstate, + cairo_pattern_t *mask); + +cairo_private cairo_status_t +_cairo_gstate_stroke (cairo_gstate_t *gstate, cairo_path_fixed_t *path); + +cairo_private cairo_status_t +_cairo_gstate_fill (cairo_gstate_t *gstate, cairo_path_fixed_t *path); + +cairo_private cairo_status_t +_cairo_gstate_copy_page (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_show_page (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_stroke_extents (cairo_gstate_t *gstate, + cairo_path_fixed_t *path, + double *x1, double *y1, + double *x2, double *y2); + +cairo_private cairo_status_t +_cairo_gstate_fill_extents (cairo_gstate_t *gstate, + cairo_path_fixed_t *path, + double *x1, double *y1, + double *x2, double *y2); + +cairo_private cairo_status_t +_cairo_gstate_in_stroke (cairo_gstate_t *gstate, + cairo_path_fixed_t *path, + double x, + double y, + cairo_bool_t *inside_ret); + +cairo_private cairo_bool_t +_cairo_gstate_in_fill (cairo_gstate_t *gstate, + cairo_path_fixed_t *path, + double x, + double y); + +cairo_private cairo_bool_t +_cairo_gstate_in_clip (cairo_gstate_t *gstate, + double x, + double y); + +cairo_private cairo_status_t +_cairo_gstate_clip (cairo_gstate_t *gstate, cairo_path_fixed_t *path); + +cairo_private cairo_status_t +_cairo_gstate_reset_clip (cairo_gstate_t *gstate); + +cairo_private cairo_bool_t +_cairo_gstate_clip_extents (cairo_gstate_t *gstate, + double *x1, + double *y1, + double *x2, + double *y2); + +cairo_private cairo_rectangle_list_t* +_cairo_gstate_copy_clip_rectangle_list (cairo_gstate_t *gstate); + +cairo_private cairo_status_t +_cairo_gstate_show_surface (cairo_gstate_t *gstate, + cairo_surface_t *surface, + double x, + double y, + double width, + double height); + +cairo_private cairo_status_t +_cairo_gstate_tag_begin (cairo_gstate_t *gstate, + const char *tag_name, + const char *attributes); + +cairo_private cairo_status_t +_cairo_gstate_tag_end (cairo_gstate_t *gstate, + const char *tag_name); + +cairo_private cairo_status_t +_cairo_gstate_set_font_size (cairo_gstate_t *gstate, + double size); + +cairo_private void +_cairo_gstate_get_font_matrix (cairo_gstate_t *gstate, + cairo_matrix_t *matrix); + +cairo_private cairo_status_t +_cairo_gstate_set_font_matrix (cairo_gstate_t *gstate, + const cairo_matrix_t *matrix); + +cairo_private void +_cairo_gstate_get_font_options (cairo_gstate_t *gstate, + cairo_font_options_t *options); + +cairo_private void +_cairo_gstate_set_font_options (cairo_gstate_t *gstate, + const cairo_font_options_t *options); + +cairo_private cairo_status_t +_cairo_gstate_get_font_face (cairo_gstate_t *gstate, + cairo_font_face_t **font_face); + +cairo_private cairo_status_t +_cairo_gstate_get_scaled_font (cairo_gstate_t *gstate, + cairo_scaled_font_t **scaled_font); + +cairo_private cairo_status_t +_cairo_gstate_get_font_extents (cairo_gstate_t *gstate, + cairo_font_extents_t *extents); + +cairo_private cairo_status_t +_cairo_gstate_set_font_face (cairo_gstate_t *gstate, + cairo_font_face_t *font_face); + +cairo_private cairo_status_t +_cairo_gstate_glyph_extents (cairo_gstate_t *gstate, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_text_extents_t *extents); + +cairo_private cairo_status_t +_cairo_gstate_show_text_glyphs (cairo_gstate_t *gstate, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_glyph_text_info_t *info); + +cairo_private cairo_status_t +_cairo_gstate_glyph_path (cairo_gstate_t *gstate, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_path_fixed_t *path); + +cairo_private cairo_status_t +_cairo_gstate_set_antialias (cairo_gstate_t *gstate, + cairo_antialias_t antialias); + +cairo_private cairo_antialias_t +_cairo_gstate_get_antialias (cairo_gstate_t *gstate); + +#endif /* CAIRO_GSTATE_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-gstate.c b/local/recipes/libs/cairo/source/src/cairo-gstate.c new file mode 100644 index 0000000000..274a02a566 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-gstate.c @@ -0,0 +1,2409 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" + +#include "cairo-clip-inline.h" +#include "cairo-clip-private.h" +#include "cairo-error-private.h" +#include "cairo-list-inline.h" +#include "cairo-gstate-private.h" +#include "cairo-pattern-private.h" +#include "cairo-traps-private.h" + +static cairo_status_t +_cairo_gstate_init_copy (cairo_gstate_t *gstate, cairo_gstate_t *other); + +static cairo_status_t +_cairo_gstate_ensure_font_face (cairo_gstate_t *gstate); + +static cairo_status_t +_cairo_gstate_ensure_scaled_font (cairo_gstate_t *gstate); + +static void +_cairo_gstate_unset_scaled_font (cairo_gstate_t *gstate); + +static void +_cairo_gstate_transform_glyphs_to_backend (cairo_gstate_t *gstate, + const cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_glyph_t *transformed_glyphs, + int *num_transformed_glyphs, + cairo_text_cluster_t *transformed_clusters, + cairo_bool_t perform_early_clip); + +static void +_cairo_gstate_update_device_transform (cairo_observer_t *observer, + void *arg) +{ + cairo_gstate_t *gstate = cairo_container_of (observer, + cairo_gstate_t, + device_transform_observer); + + gstate->is_identity = (_cairo_matrix_is_identity (&gstate->ctm) && + _cairo_matrix_is_identity (&gstate->target->device_transform)); +} + +cairo_status_t +_cairo_gstate_init (cairo_gstate_t *gstate, + cairo_surface_t *target) +{ + VG (VALGRIND_MAKE_MEM_UNDEFINED (gstate, sizeof (cairo_gstate_t))); + + gstate->next = NULL; + + gstate->op = CAIRO_GSTATE_OPERATOR_DEFAULT; + gstate->opacity = 1.; + + gstate->tolerance = CAIRO_GSTATE_TOLERANCE_DEFAULT; + gstate->antialias = CAIRO_ANTIALIAS_DEFAULT; + + _cairo_stroke_style_init (&gstate->stroke_style); + + gstate->fill_rule = CAIRO_GSTATE_FILL_RULE_DEFAULT; + + gstate->font_face = NULL; + gstate->scaled_font = NULL; + gstate->previous_scaled_font = NULL; + + cairo_matrix_init_scale (&gstate->font_matrix, + CAIRO_GSTATE_DEFAULT_FONT_SIZE, + CAIRO_GSTATE_DEFAULT_FONT_SIZE); + + _cairo_font_options_init_default (&gstate->font_options); + + gstate->clip = NULL; + + gstate->target = cairo_surface_reference (target); + gstate->parent_target = NULL; + gstate->original_target = cairo_surface_reference (target); + + gstate->device_transform_observer.callback = _cairo_gstate_update_device_transform; + cairo_list_add (&gstate->device_transform_observer.link, + &gstate->target->device_transform_observers); + + gstate->is_identity = _cairo_matrix_is_identity (&gstate->target->device_transform); + cairo_matrix_init_identity (&gstate->ctm); + gstate->ctm_inverse = gstate->ctm; + gstate->source_ctm_inverse = gstate->ctm; + + gstate->source = (cairo_pattern_t *) &_cairo_pattern_black.base; + + /* Now that the gstate is fully initialized and ready for the eventual + * _cairo_gstate_fini(), we can check for errors (and not worry about + * the resource deallocation). */ + return target->status; +} + +/** + * _cairo_gstate_init_copy: + * + * Initialize @gstate by performing a deep copy of state fields from + * @other. Note that gstate->next is not copied but is set to %NULL by + * this function. + **/ +static cairo_status_t +_cairo_gstate_init_copy (cairo_gstate_t *gstate, cairo_gstate_t *other) +{ + cairo_status_t status; + + VG (VALGRIND_MAKE_MEM_UNDEFINED (gstate, sizeof (cairo_gstate_t))); + + gstate->op = other->op; + gstate->opacity = other->opacity; + + gstate->tolerance = other->tolerance; + gstate->antialias = other->antialias; + + status = _cairo_stroke_style_init_copy (&gstate->stroke_style, + &other->stroke_style); + if (unlikely (status)) + return status; + + gstate->fill_rule = other->fill_rule; + + gstate->font_face = cairo_font_face_reference (other->font_face); + gstate->scaled_font = cairo_scaled_font_reference (other->scaled_font); + gstate->previous_scaled_font = cairo_scaled_font_reference (other->previous_scaled_font); + + gstate->font_matrix = other->font_matrix; + + _cairo_font_options_init_copy (&gstate->font_options , &other->font_options); + + gstate->clip = _cairo_clip_copy (other->clip); + + gstate->target = cairo_surface_reference (other->target); + /* parent_target is always set to NULL; it's only ever set by redirect_target */ + gstate->parent_target = NULL; + gstate->original_target = cairo_surface_reference (other->original_target); + + gstate->device_transform_observer.callback = _cairo_gstate_update_device_transform; + cairo_list_add (&gstate->device_transform_observer.link, + &gstate->target->device_transform_observers); + + gstate->is_identity = other->is_identity; + gstate->ctm = other->ctm; + gstate->ctm_inverse = other->ctm_inverse; + gstate->source_ctm_inverse = other->source_ctm_inverse; + + gstate->source = cairo_pattern_reference (other->source); + + gstate->next = NULL; + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_gstate_fini (cairo_gstate_t *gstate) +{ + _cairo_stroke_style_fini (&gstate->stroke_style); + _cairo_font_options_fini (&gstate->font_options); + + cairo_font_face_destroy (gstate->font_face); + gstate->font_face = NULL; + + cairo_scaled_font_destroy (gstate->previous_scaled_font); + gstate->previous_scaled_font = NULL; + + cairo_scaled_font_destroy (gstate->scaled_font); + gstate->scaled_font = NULL; + + _cairo_clip_destroy (gstate->clip); + + cairo_list_del (&gstate->device_transform_observer.link); + + cairo_surface_destroy (gstate->target); + gstate->target = NULL; + + cairo_surface_destroy (gstate->parent_target); + gstate->parent_target = NULL; + + cairo_surface_destroy (gstate->original_target); + gstate->original_target = NULL; + + cairo_pattern_destroy (gstate->source); + gstate->source = NULL; + + VG (VALGRIND_MAKE_MEM_UNDEFINED (gstate, sizeof (cairo_gstate_t))); +} + +/** + * _cairo_gstate_save: + * @gstate: input/output gstate pointer + * + * Makes a copy of the current state of @gstate and saves it + * to @gstate->next, then put the address of the newly allcated + * copy into @gstate. _cairo_gstate_restore() reverses this. + **/ +cairo_status_t +_cairo_gstate_save (cairo_gstate_t **gstate, cairo_gstate_t **freelist) +{ + cairo_gstate_t *top; + cairo_status_t status; + + if (CAIRO_INJECT_FAULT ()) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + top = *freelist; + if (top == NULL) { + top = _cairo_calloc (sizeof (cairo_gstate_t)); + if (unlikely (top == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } else + *freelist = top->next; + + status = _cairo_gstate_init_copy (top, *gstate); + if (unlikely (status)) { + top->next = *freelist; + *freelist = top; + return status; + } + + top->next = *gstate; + *gstate = top; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * _cairo_gstate_restore: + * @gstate: input/output gstate pointer + * + * Reverses the effects of one _cairo_gstate_save() call. + **/ +cairo_status_t +_cairo_gstate_restore (cairo_gstate_t **gstate, cairo_gstate_t **freelist) +{ + cairo_gstate_t *top; + + top = *gstate; + if (top->next == NULL) + return _cairo_error (CAIRO_STATUS_INVALID_RESTORE); + + *gstate = top->next; + + _cairo_gstate_fini (top); + VG (VALGRIND_MAKE_MEM_UNDEFINED (&top->next, sizeof (cairo_gstate_t *))); + top->next = *freelist; + *freelist = top; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * _cairo_gstate_redirect_target: + * @gstate: a #cairo_gstate_t + * @child: the new child target + * + * Redirect @gstate rendering to a "child" target. The original + * "parent" target with which the gstate was created will not be + * affected. See _cairo_gstate_get_target(). + **/ +cairo_status_t +_cairo_gstate_redirect_target (cairo_gstate_t *gstate, cairo_surface_t *child) +{ + /* If this gstate is already redirected, this is an error; we need a + * new gstate to be able to redirect */ + assert (gstate->parent_target == NULL); + + /* Set up our new parent_target based on our current target; + * gstate->parent_target will take the ref that is held by gstate->target + */ + gstate->parent_target = gstate->target; + + /* Now set up our new target; we overwrite gstate->target directly, + * since its ref is now owned by gstate->parent_target */ + gstate->target = cairo_surface_reference (child); + gstate->is_identity &= _cairo_matrix_is_identity (&child->device_transform); + cairo_list_move (&gstate->device_transform_observer.link, + &gstate->target->device_transform_observers); + + /* The clip is in surface backend coordinates for the previous target; + * translate it into the child's backend coordinates. */ + _cairo_clip_destroy (gstate->clip); + gstate->clip = _cairo_clip_copy_with_translation (gstate->next->clip, + child->device_transform.x0 - gstate->parent_target->device_transform.x0, + child->device_transform.y0 - gstate->parent_target->device_transform.y0); + + return CAIRO_STATUS_SUCCESS; +} + +/** + * _cairo_gstate_is_group: + * @gstate: a #cairo_gstate_t + * + * Check if _cairo_gstate_redirect_target has been called on the head + * of the stack. + * + * Return value: %TRUE if @gstate is redirected to a target different + * than the previous state in the stack, %FALSE otherwise. + **/ +cairo_bool_t +_cairo_gstate_is_group (cairo_gstate_t *gstate) +{ + return gstate->parent_target != NULL; +} + +/** + * _cairo_gstate_get_target: + * @gstate: a #cairo_gstate_t + * + * Return the current drawing target; if drawing is not redirected, + * this will be the same as _cairo_gstate_get_original_target(). + * + * Return value: the current target surface + **/ +cairo_surface_t * +_cairo_gstate_get_target (cairo_gstate_t *gstate) +{ + return gstate->target; +} + +/** + * _cairo_gstate_get_original_target: + * @gstate: a #cairo_gstate_t + * + * Return the original target with which @gstate was created. This + * function always returns the original target independent of any + * child target that may have been set with + * _cairo_gstate_redirect_target. + * + * Return value: the original target surface + **/ +cairo_surface_t * +_cairo_gstate_get_original_target (cairo_gstate_t *gstate) +{ + return gstate->original_target; +} + +/** + * _cairo_gstate_get_clip: + * @gstate: a #cairo_gstate_t + * + * This space left intentionally blank. + * + * Return value: a pointer to the gstate's #cairo_clip_t structure. + **/ +cairo_clip_t * +_cairo_gstate_get_clip (cairo_gstate_t *gstate) +{ + return gstate->clip; +} + +cairo_status_t +_cairo_gstate_set_source (cairo_gstate_t *gstate, + cairo_pattern_t *source) +{ + if (source->status) + return source->status; + + source = cairo_pattern_reference (source); + cairo_pattern_destroy (gstate->source); + gstate->source = source; + gstate->source_ctm_inverse = gstate->ctm_inverse; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_pattern_t * +_cairo_gstate_get_source (cairo_gstate_t *gstate) +{ + if (gstate->source == &_cairo_pattern_black.base) { + /* do not expose the static object to the user */ + gstate->source = _cairo_pattern_create_solid (CAIRO_COLOR_BLACK); + } + + return gstate->source; +} + +cairo_status_t +_cairo_gstate_set_operator (cairo_gstate_t *gstate, cairo_operator_t op) +{ + gstate->op = op; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_operator_t +_cairo_gstate_get_operator (cairo_gstate_t *gstate) +{ + return gstate->op; +} + +cairo_status_t +_cairo_gstate_set_opacity (cairo_gstate_t *gstate, double op) +{ + gstate->opacity = op; + + return CAIRO_STATUS_SUCCESS; +} + +double +_cairo_gstate_get_opacity (cairo_gstate_t *gstate) +{ + return gstate->opacity; +} + +cairo_status_t +_cairo_gstate_set_tolerance (cairo_gstate_t *gstate, double tolerance) +{ + gstate->tolerance = tolerance; + + return CAIRO_STATUS_SUCCESS; +} + +double +_cairo_gstate_get_tolerance (cairo_gstate_t *gstate) +{ + return gstate->tolerance; +} + +cairo_status_t +_cairo_gstate_set_fill_rule (cairo_gstate_t *gstate, cairo_fill_rule_t fill_rule) +{ + gstate->fill_rule = fill_rule; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_fill_rule_t +_cairo_gstate_get_fill_rule (cairo_gstate_t *gstate) +{ + return gstate->fill_rule; +} + +cairo_status_t +_cairo_gstate_set_line_width (cairo_gstate_t *gstate, double width) +{ + if (gstate->stroke_style.is_hairline) + gstate->stroke_style.pre_hairline_line_width = width; + else + gstate->stroke_style.line_width = width; + + return CAIRO_STATUS_SUCCESS; +} + +double +_cairo_gstate_get_line_width (cairo_gstate_t *gstate) +{ + return gstate->stroke_style.line_width; +} + +cairo_status_t +_cairo_gstate_set_hairline (cairo_gstate_t *gstate, cairo_bool_t set_hairline) +{ + if (gstate->stroke_style.is_hairline != set_hairline) { + gstate->stroke_style.is_hairline = set_hairline; + + if (set_hairline) { + gstate->stroke_style.pre_hairline_line_width = gstate->stroke_style.line_width; + gstate->stroke_style.line_width = 0.0; + } else { + gstate->stroke_style.line_width = gstate->stroke_style.pre_hairline_line_width; + } + } + + return CAIRO_STATUS_SUCCESS; +} + +cairo_bool_t +_cairo_gstate_get_hairline (cairo_gstate_t *gstate) +{ + return gstate->stroke_style.is_hairline; +} + +cairo_status_t +_cairo_gstate_set_line_cap (cairo_gstate_t *gstate, cairo_line_cap_t line_cap) +{ + gstate->stroke_style.line_cap = line_cap; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_line_cap_t +_cairo_gstate_get_line_cap (cairo_gstate_t *gstate) +{ + return gstate->stroke_style.line_cap; +} + +cairo_status_t +_cairo_gstate_set_line_join (cairo_gstate_t *gstate, cairo_line_join_t line_join) +{ + gstate->stroke_style.line_join = line_join; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_line_join_t +_cairo_gstate_get_line_join (cairo_gstate_t *gstate) +{ + return gstate->stroke_style.line_join; +} + +cairo_status_t +_cairo_gstate_set_dash (cairo_gstate_t *gstate, const double *dash, int num_dashes, double offset) +{ + double dash_total, on_total, off_total; + int i, j; + + free (gstate->stroke_style.dash); + + gstate->stroke_style.num_dashes = num_dashes; + + if (gstate->stroke_style.num_dashes == 0) { + gstate->stroke_style.dash = NULL; + gstate->stroke_style.dash_offset = 0.0; + return CAIRO_STATUS_SUCCESS; + } + + gstate->stroke_style.dash = _cairo_malloc_ab (gstate->stroke_style.num_dashes, sizeof (double)); + if (unlikely (gstate->stroke_style.dash == NULL)) { + gstate->stroke_style.num_dashes = 0; + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + on_total = off_total = dash_total = 0.0; + for (i = j = 0; i < num_dashes; i++) { + if (dash[i] < 0) + return _cairo_error (CAIRO_STATUS_INVALID_DASH); + + if (dash[i] == 0 && i > 0 && i < num_dashes - 1) { + if (dash[++i] < 0) + return _cairo_error (CAIRO_STATUS_INVALID_DASH); + + gstate->stroke_style.dash[j-1] += dash[i]; + gstate->stroke_style.num_dashes -= 2; + } else + gstate->stroke_style.dash[j++] = dash[i]; + + if (dash[i]) { + dash_total += dash[i]; + if ((i & 1) == 0) + on_total += dash[i]; + else + off_total += dash[i]; + } + } + + if (dash_total == 0.0) + return _cairo_error (CAIRO_STATUS_INVALID_DASH); + + /* An odd dash value indicate symmetric repeating, so the total + * is twice as long. */ + if (gstate->stroke_style.num_dashes & 1) { + dash_total *= 2; + on_total += off_total; + } + + if (dash_total - on_total < CAIRO_FIXED_ERROR_DOUBLE) { + /* Degenerate dash -> solid line */ + free (gstate->stroke_style.dash); + gstate->stroke_style.dash = NULL; + gstate->stroke_style.num_dashes = 0; + gstate->stroke_style.dash_offset = 0.0; + return CAIRO_STATUS_SUCCESS; + } + + /* The dashing code doesn't like a negative offset or a big positive + * offset, so we compute an equivalent offset which is guaranteed to be + * positive and less than twice the pattern length. */ + offset = fmod (offset, dash_total); + if (offset < 0.0) + offset += dash_total; + if (offset <= 0.0) /* Take care of -0 */ + offset = 0.0; + gstate->stroke_style.dash_offset = offset; + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_gstate_get_dash (cairo_gstate_t *gstate, + double *dashes, + int *num_dashes, + double *offset) +{ + if (dashes) { + memcpy (dashes, + gstate->stroke_style.dash, + sizeof (double) * gstate->stroke_style.num_dashes); + } + + if (num_dashes) + *num_dashes = gstate->stroke_style.num_dashes; + + if (offset) + *offset = gstate->stroke_style.dash_offset; +} + +cairo_status_t +_cairo_gstate_set_miter_limit (cairo_gstate_t *gstate, double limit) +{ + gstate->stroke_style.miter_limit = limit; + + return CAIRO_STATUS_SUCCESS; +} + +double +_cairo_gstate_get_miter_limit (cairo_gstate_t *gstate) +{ + return gstate->stroke_style.miter_limit; +} + +void +_cairo_gstate_get_matrix (cairo_gstate_t *gstate, cairo_matrix_t *matrix) +{ + *matrix = gstate->ctm; +} + +cairo_status_t +_cairo_gstate_translate (cairo_gstate_t *gstate, double tx, double ty) +{ + cairo_matrix_t tmp; + + if (! ISFINITE (tx) || ! ISFINITE (ty)) + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + + _cairo_gstate_unset_scaled_font (gstate); + + cairo_matrix_init_translate (&tmp, tx, ty); + cairo_matrix_multiply (&gstate->ctm, &tmp, &gstate->ctm); + gstate->is_identity = FALSE; + + /* paranoid check against gradual numerical instability */ + if (! _cairo_matrix_is_invertible (&gstate->ctm)) + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + + cairo_matrix_init_translate (&tmp, -tx, -ty); + cairo_matrix_multiply (&gstate->ctm_inverse, &gstate->ctm_inverse, &tmp); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_gstate_scale (cairo_gstate_t *gstate, double sx, double sy) +{ + cairo_matrix_t tmp; + + if (sx * sy == 0.) /* either sx or sy is 0, or det == 0 due to underflow */ + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + if (! ISFINITE (sx) || ! ISFINITE (sy)) + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + + _cairo_gstate_unset_scaled_font (gstate); + + cairo_matrix_init_scale (&tmp, sx, sy); + cairo_matrix_multiply (&gstate->ctm, &tmp, &gstate->ctm); + gstate->is_identity = FALSE; + + /* paranoid check against gradual numerical instability */ + if (! _cairo_matrix_is_invertible (&gstate->ctm)) + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + + cairo_matrix_init_scale (&tmp, 1/sx, 1/sy); + cairo_matrix_multiply (&gstate->ctm_inverse, &gstate->ctm_inverse, &tmp); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_gstate_rotate (cairo_gstate_t *gstate, double angle) +{ + cairo_matrix_t tmp; + + if (angle == 0.) + return CAIRO_STATUS_SUCCESS; + + if (! ISFINITE (angle)) + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + + _cairo_gstate_unset_scaled_font (gstate); + + cairo_matrix_init_rotate (&tmp, angle); + cairo_matrix_multiply (&gstate->ctm, &tmp, &gstate->ctm); + gstate->is_identity = FALSE; + + /* paranoid check against gradual numerical instability */ + if (! _cairo_matrix_is_invertible (&gstate->ctm)) + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + + cairo_matrix_init_rotate (&tmp, -angle); + cairo_matrix_multiply (&gstate->ctm_inverse, &gstate->ctm_inverse, &tmp); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_gstate_transform (cairo_gstate_t *gstate, + const cairo_matrix_t *matrix) +{ + cairo_matrix_t tmp; + cairo_status_t status; + + if (! _cairo_matrix_is_invertible (matrix)) + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + + if (_cairo_matrix_is_identity (matrix)) + return CAIRO_STATUS_SUCCESS; + + tmp = *matrix; + status = cairo_matrix_invert (&tmp); + if (unlikely (status)) + return status; + + _cairo_gstate_unset_scaled_font (gstate); + + cairo_matrix_multiply (&gstate->ctm, matrix, &gstate->ctm); + cairo_matrix_multiply (&gstate->ctm_inverse, &gstate->ctm_inverse, &tmp); + gstate->is_identity = FALSE; + + /* paranoid check against gradual numerical instability */ + if (! _cairo_matrix_is_invertible (&gstate->ctm)) + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_gstate_set_matrix (cairo_gstate_t *gstate, + const cairo_matrix_t *matrix) +{ + cairo_status_t status; + + if (memcmp (matrix, &gstate->ctm, sizeof (cairo_matrix_t)) == 0) + return CAIRO_STATUS_SUCCESS; + + if (! _cairo_matrix_is_invertible (matrix)) + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + + if (_cairo_matrix_is_identity (matrix)) { + _cairo_gstate_identity_matrix (gstate); + return CAIRO_STATUS_SUCCESS; + } + + _cairo_gstate_unset_scaled_font (gstate); + + gstate->ctm = *matrix; + gstate->ctm_inverse = *matrix; + status = cairo_matrix_invert (&gstate->ctm_inverse); + assert (status == CAIRO_STATUS_SUCCESS); + gstate->is_identity = FALSE; + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_gstate_identity_matrix (cairo_gstate_t *gstate) +{ + if (_cairo_matrix_is_identity (&gstate->ctm)) + return; + + _cairo_gstate_unset_scaled_font (gstate); + + cairo_matrix_init_identity (&gstate->ctm); + cairo_matrix_init_identity (&gstate->ctm_inverse); + gstate->is_identity = _cairo_matrix_is_identity (&gstate->target->device_transform); +} + +void +_cairo_gstate_user_to_device (cairo_gstate_t *gstate, double *x, double *y) +{ + cairo_matrix_transform_point (&gstate->ctm, x, y); +} + +void +_cairo_gstate_user_to_device_distance (cairo_gstate_t *gstate, + double *dx, double *dy) +{ + cairo_matrix_transform_distance (&gstate->ctm, dx, dy); +} + +void +_cairo_gstate_device_to_user (cairo_gstate_t *gstate, double *x, double *y) +{ + cairo_matrix_transform_point (&gstate->ctm_inverse, x, y); +} + +void +_cairo_gstate_device_to_user_distance (cairo_gstate_t *gstate, + double *dx, double *dy) +{ + cairo_matrix_transform_distance (&gstate->ctm_inverse, dx, dy); +} + +void +_do_cairo_gstate_user_to_backend (cairo_gstate_t *gstate, double *x, double *y) +{ + cairo_matrix_transform_point (&gstate->ctm, x, y); + cairo_matrix_transform_point (&gstate->target->device_transform, x, y); +} + +void +_do_cairo_gstate_user_to_backend_distance (cairo_gstate_t *gstate, double *x, double *y) +{ + cairo_matrix_transform_distance (&gstate->ctm, x, y); + cairo_matrix_transform_distance (&gstate->target->device_transform, x, y); +} + +void +_do_cairo_gstate_backend_to_user (cairo_gstate_t *gstate, double *x, double *y) +{ + cairo_matrix_transform_point (&gstate->target->device_transform_inverse, x, y); + cairo_matrix_transform_point (&gstate->ctm_inverse, x, y); +} + +void +_do_cairo_gstate_backend_to_user_distance (cairo_gstate_t *gstate, double *x, double *y) +{ + cairo_matrix_transform_distance (&gstate->target->device_transform_inverse, x, y); + cairo_matrix_transform_distance (&gstate->ctm_inverse, x, y); +} + +void +_cairo_gstate_backend_to_user_rectangle (cairo_gstate_t *gstate, + double *x1, double *y1, + double *x2, double *y2, + cairo_bool_t *is_tight) +{ + cairo_matrix_t matrix_inverse; + + if (! _cairo_matrix_is_identity (&gstate->target->device_transform_inverse) || + ! _cairo_matrix_is_identity (&gstate->ctm_inverse)) + { + cairo_matrix_multiply (&matrix_inverse, + &gstate->target->device_transform_inverse, + &gstate->ctm_inverse); + _cairo_matrix_transform_bounding_box (&matrix_inverse, + x1, y1, x2, y2, is_tight); + } + + else + { + if (is_tight) + *is_tight = TRUE; + } +} + +/* XXX: NYI +cairo_status_t +_cairo_gstate_stroke_to_path (cairo_gstate_t *gstate) +{ + cairo_status_t status; + + _cairo_pen_init (&gstate); + return CAIRO_STATUS_SUCCESS; +} +*/ + +void +_cairo_gstate_path_extents (cairo_gstate_t *gstate, + cairo_path_fixed_t *path, + double *x1, double *y1, + double *x2, double *y2) +{ + cairo_box_t box; + double px1, py1, px2, py2; + + if (_cairo_path_fixed_extents (path, &box)) { + px1 = _cairo_fixed_to_double (box.p1.x); + py1 = _cairo_fixed_to_double (box.p1.y); + px2 = _cairo_fixed_to_double (box.p2.x); + py2 = _cairo_fixed_to_double (box.p2.y); + + _cairo_gstate_backend_to_user_rectangle (gstate, + &px1, &py1, &px2, &py2, + NULL); + } else { + px1 = 0.0; + py1 = 0.0; + px2 = 0.0; + py2 = 0.0; + } + + if (x1) + *x1 = px1; + if (y1) + *y1 = py1; + if (x2) + *x2 = px2; + if (y2) + *y2 = py2; +} + +static void +_cairo_gstate_copy_pattern (cairo_pattern_t *pattern, + const cairo_pattern_t *original) +{ + /* First check if the we can replace the original with a much simpler + * pattern. For example, gradients that are uniform or just have a single + * stop can sometimes be replaced with a solid. + */ + + if (_cairo_pattern_is_clear (original)) { + _cairo_pattern_init_solid ((cairo_solid_pattern_t *) pattern, + CAIRO_COLOR_TRANSPARENT); + return; + } + + if (original->type == CAIRO_PATTERN_TYPE_LINEAR || + original->type == CAIRO_PATTERN_TYPE_RADIAL) + { + cairo_color_t color; + if (_cairo_gradient_pattern_is_solid ((cairo_gradient_pattern_t *) original, + NULL, + &color)) + { + _cairo_pattern_init_solid ((cairo_solid_pattern_t *) pattern, + &color); + return; + } + } + + _cairo_pattern_init_static_copy (pattern, original); +} + +static void +_cairo_gstate_copy_transformed_pattern (cairo_gstate_t *gstate, + cairo_pattern_t *pattern, + const cairo_pattern_t *original, + const cairo_matrix_t *ctm_inverse) +{ + /* + * What calculations below do can be described in pseudo-code (so using nonexistent fields) as (using column vectors): + * pattern->matrix = surface->device_transform * + * pattern->matrix * + * ctm_inverse * + * gstate->target->device_transform_inverse + * + * The inverse of which is: + * pattern->matrix_inverse = gstate->target->device_transform * + * ctm * + * pattern->matrix_inverse * + * surface->device_transform_inverse + */ + + _cairo_gstate_copy_pattern (pattern, original); + + if (original->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern; + cairo_surface_t *surface; + + surface_pattern = (cairo_surface_pattern_t *) original; + surface = surface_pattern->surface; + + if (_cairo_surface_has_device_transform (surface)) + _cairo_pattern_pretransform (pattern, &surface->device_transform); + } + + if (! _cairo_matrix_is_identity (ctm_inverse)) + _cairo_pattern_transform (pattern, ctm_inverse); + + if (_cairo_surface_has_device_transform (gstate->target)) { + _cairo_pattern_transform (pattern, + &gstate->target->device_transform_inverse); + } +} + +static void +_cairo_gstate_copy_transformed_source (cairo_gstate_t *gstate, + cairo_pattern_t *pattern) +{ + _cairo_gstate_copy_transformed_pattern (gstate, pattern, + gstate->source, + &gstate->source_ctm_inverse); +} + +static void +_cairo_gstate_copy_transformed_mask (cairo_gstate_t *gstate, + cairo_pattern_t *pattern, + cairo_pattern_t *mask) +{ + _cairo_gstate_copy_transformed_pattern (gstate, pattern, + mask, + &gstate->ctm_inverse); +} + +static cairo_operator_t +_reduce_op (cairo_gstate_t *gstate) +{ + cairo_operator_t op; + const cairo_pattern_t *pattern; + + op = gstate->op; + if (op != CAIRO_OPERATOR_SOURCE) + return op; + + pattern = gstate->source; + if (pattern->type == CAIRO_PATTERN_TYPE_SOLID) { + const cairo_solid_pattern_t *solid = (cairo_solid_pattern_t *) pattern; + if (solid->color.alpha_short <= 0x00ff) { + op = CAIRO_OPERATOR_CLEAR; + } else if ((gstate->target->content & CAIRO_CONTENT_ALPHA) == 0) { + if ((solid->color.red_short | + solid->color.green_short | + solid->color.blue_short) <= 0x00ff) + { + op = CAIRO_OPERATOR_CLEAR; + } + } + } else if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + const cairo_surface_pattern_t *surface = (cairo_surface_pattern_t *) pattern; + if (surface->surface->is_clear && + surface->surface->content & CAIRO_CONTENT_ALPHA) + { + op = CAIRO_OPERATOR_CLEAR; + } + } else { + const cairo_gradient_pattern_t *gradient = (cairo_gradient_pattern_t *) pattern; + if (gradient->n_stops == 0) + op = CAIRO_OPERATOR_CLEAR; + } + + return op; +} + +static cairo_status_t +_cairo_gstate_get_pattern_status (const cairo_pattern_t *pattern) +{ + if (unlikely (pattern->type == CAIRO_PATTERN_TYPE_MESH && + ((const cairo_mesh_pattern_t *) pattern)->current_patch)) + { + /* If current patch != NULL, the pattern is under construction + * and cannot be used as a source */ + return CAIRO_STATUS_INVALID_MESH_CONSTRUCTION; + } + + return pattern->status; +} + +cairo_status_t +_cairo_gstate_paint (cairo_gstate_t *gstate) +{ + cairo_pattern_union_t source_pattern; + const cairo_pattern_t *pattern; + cairo_status_t status; + cairo_operator_t op; + + status = _cairo_gstate_get_pattern_status (gstate->source); + if (unlikely (status)) + return status; + + if (gstate->op == CAIRO_OPERATOR_DEST) + return CAIRO_STATUS_SUCCESS; + + if (_cairo_clip_is_all_clipped (gstate->clip)) + return CAIRO_STATUS_SUCCESS; + + op = _reduce_op (gstate); + if (op == CAIRO_OPERATOR_CLEAR) { + pattern = &_cairo_pattern_clear.base; + } else { + _cairo_gstate_copy_transformed_source (gstate, &source_pattern.base); + pattern = &source_pattern.base; + } + + return _cairo_surface_paint (gstate->target, + op, pattern, + gstate->clip); +} + +cairo_status_t +_cairo_gstate_mask (cairo_gstate_t *gstate, + cairo_pattern_t *mask) +{ + cairo_pattern_union_t source_pattern, mask_pattern; + const cairo_pattern_t *source; + cairo_operator_t op; + cairo_status_t status; + + status = _cairo_gstate_get_pattern_status (mask); + if (unlikely (status)) + return status; + + status = _cairo_gstate_get_pattern_status (gstate->source); + if (unlikely (status)) + return status; + + if (gstate->op == CAIRO_OPERATOR_DEST) + return CAIRO_STATUS_SUCCESS; + + if (_cairo_clip_is_all_clipped (gstate->clip)) + return CAIRO_STATUS_SUCCESS; + + assert (gstate->opacity == 1.0); + + if (_cairo_pattern_is_opaque (mask, NULL)) + return _cairo_gstate_paint (gstate); + + if (_cairo_pattern_is_clear (mask) && + _cairo_operator_bounded_by_mask (gstate->op)) + { + return CAIRO_STATUS_SUCCESS; + } + + op = _reduce_op (gstate); + if (op == CAIRO_OPERATOR_CLEAR) { + source = &_cairo_pattern_clear.base; + } else { + _cairo_gstate_copy_transformed_source (gstate, &source_pattern.base); + source = &source_pattern.base; + } + _cairo_gstate_copy_transformed_mask (gstate, &mask_pattern.base, mask); + + if (source->type == CAIRO_PATTERN_TYPE_SOLID && !source->is_foreground_marker && + mask_pattern.base.type == CAIRO_PATTERN_TYPE_SOLID && + _cairo_operator_bounded_by_source (op)) + { + const cairo_solid_pattern_t *solid = (cairo_solid_pattern_t *) source; + cairo_color_t combined; + + if (mask_pattern.base.has_component_alpha) { +#define M(R, A, B, c) R.c = A.c * B.c + M(combined, solid->color, mask_pattern.solid.color, red); + M(combined, solid->color, mask_pattern.solid.color, green); + M(combined, solid->color, mask_pattern.solid.color, blue); + M(combined, solid->color, mask_pattern.solid.color, alpha); +#undef M + } else { + combined = solid->color; + _cairo_color_multiply_alpha (&combined, mask_pattern.solid.color.alpha); + } + + _cairo_pattern_init_solid (&source_pattern.solid, &combined); + + status = _cairo_surface_paint (gstate->target, op, + &source_pattern.base, + gstate->clip); + } + else + { + status = _cairo_surface_mask (gstate->target, op, + source, + &mask_pattern.base, + gstate->clip); + } + + return status; +} + +cairo_status_t +_cairo_gstate_stroke (cairo_gstate_t *gstate, cairo_path_fixed_t *path) +{ + cairo_pattern_union_t source_pattern; + cairo_stroke_style_t style; + double dash[2]; + cairo_status_t status; + cairo_matrix_t aggregate_transform; + cairo_matrix_t aggregate_transform_inverse; + + status = _cairo_gstate_get_pattern_status (gstate->source); + if (unlikely (status)) + return status; + + if (gstate->op == CAIRO_OPERATOR_DEST) + return CAIRO_STATUS_SUCCESS; + + if (gstate->stroke_style.line_width <= 0.0 && !gstate->stroke_style.is_hairline) + return CAIRO_STATUS_SUCCESS; + + if (_cairo_clip_is_all_clipped (gstate->clip)) + return CAIRO_STATUS_SUCCESS; + + assert (gstate->opacity == 1.0); + + cairo_matrix_multiply (&aggregate_transform, + &gstate->ctm, + &gstate->target->device_transform); + cairo_matrix_multiply (&aggregate_transform_inverse, + &gstate->target->device_transform_inverse, + &gstate->ctm_inverse); + + memcpy (&style, &gstate->stroke_style, sizeof (gstate->stroke_style)); + if (_cairo_stroke_style_dash_can_approximate (&gstate->stroke_style, &aggregate_transform, gstate->tolerance)) { + style.dash = dash; + _cairo_stroke_style_dash_approximate (&gstate->stroke_style, &gstate->ctm, gstate->tolerance, + &style.dash_offset, + style.dash, + &style.num_dashes); + } + + _cairo_gstate_copy_transformed_source (gstate, &source_pattern.base); + + return _cairo_surface_stroke (gstate->target, + gstate->op, + &source_pattern.base, + path, + &style, + &aggregate_transform, + &aggregate_transform_inverse, + gstate->tolerance, + gstate->antialias, + gstate->clip); +} + +cairo_status_t +_cairo_gstate_in_stroke (cairo_gstate_t *gstate, + cairo_path_fixed_t *path, + double x, + double y, + cairo_bool_t *inside_ret) +{ + cairo_status_t status; + cairo_rectangle_int_t extents; + cairo_box_t limit; + cairo_traps_t traps; + + if (gstate->stroke_style.line_width <= 0.0) { + *inside_ret = FALSE; + return CAIRO_STATUS_SUCCESS; + } + + _cairo_gstate_user_to_backend (gstate, &x, &y); + + /* Before we perform the expensive stroke analysis, + * check whether the point is within the extents of the path. + */ + _cairo_path_fixed_approximate_stroke_extents (path, + &gstate->stroke_style, + &gstate->ctm, + gstate->target->is_vector, + &extents); + if (x < extents.x || x > extents.x + extents.width || + y < extents.y || y > extents.y + extents.height) + { + *inside_ret = FALSE; + return CAIRO_STATUS_SUCCESS; + } + + limit.p1.x = _cairo_fixed_from_double (x) - 1; + limit.p1.y = _cairo_fixed_from_double (y) - 1; + limit.p2.x = limit.p1.x + 2; + limit.p2.y = limit.p1.y + 2; + + _cairo_traps_init (&traps); + _cairo_traps_limit (&traps, &limit, 1); + + status = _cairo_path_fixed_stroke_polygon_to_traps (path, + &gstate->stroke_style, + &gstate->ctm, + &gstate->ctm_inverse, + gstate->tolerance, + &traps); + if (unlikely (status)) + goto BAIL; + + *inside_ret = _cairo_traps_contain (&traps, x, y); + +BAIL: + _cairo_traps_fini (&traps); + + return status; +} + +cairo_status_t +_cairo_gstate_fill (cairo_gstate_t *gstate, cairo_path_fixed_t *path) +{ + cairo_status_t status; + + status = _cairo_gstate_get_pattern_status (gstate->source); + if (unlikely (status)) + return status; + + if (gstate->op == CAIRO_OPERATOR_DEST) + return CAIRO_STATUS_SUCCESS; + + if (_cairo_clip_is_all_clipped (gstate->clip)) + return CAIRO_STATUS_SUCCESS; + + assert (gstate->opacity == 1.0); + + if (_cairo_path_fixed_fill_is_empty (path)) { + if (_cairo_operator_bounded_by_mask (gstate->op)) + return CAIRO_STATUS_SUCCESS; + + status = _cairo_surface_paint (gstate->target, + CAIRO_OPERATOR_CLEAR, + &_cairo_pattern_clear.base, + gstate->clip); + } else { + cairo_pattern_union_t source_pattern; + const cairo_pattern_t *pattern; + cairo_operator_t op; + cairo_rectangle_int_t extents; + cairo_box_t box; + + op = _reduce_op (gstate); + if (op == CAIRO_OPERATOR_CLEAR) { + pattern = &_cairo_pattern_clear.base; + } else { + _cairo_gstate_copy_transformed_source (gstate, &source_pattern.base); + pattern = &source_pattern.base; + } + + /* Toolkits often paint the entire background with a fill */ + if (_cairo_surface_get_extents (gstate->target, &extents) && + _cairo_path_fixed_is_box (path, &box) && + box.p1.x <= _cairo_fixed_from_int (extents.x) && + box.p1.y <= _cairo_fixed_from_int (extents.y) && + box.p2.x >= _cairo_fixed_from_int (extents.x + extents.width) && + box.p2.y >= _cairo_fixed_from_int (extents.y + extents.height)) + { + status = _cairo_surface_paint (gstate->target, op, pattern, + gstate->clip); + } + else + { + status = _cairo_surface_fill (gstate->target, op, pattern, + path, + gstate->fill_rule, + gstate->tolerance, + gstate->antialias, + gstate->clip); + } + } + + return status; +} + +cairo_bool_t +_cairo_gstate_in_fill (cairo_gstate_t *gstate, + cairo_path_fixed_t *path, + double x, + double y) +{ + _cairo_gstate_user_to_backend (gstate, &x, &y); + + return _cairo_path_fixed_in_fill (path, + gstate->fill_rule, + gstate->tolerance, + x, y); +} + +cairo_bool_t +_cairo_gstate_in_clip (cairo_gstate_t *gstate, + double x, + double y) +{ + cairo_clip_t *clip = gstate->clip; + int i; + + if (_cairo_clip_is_all_clipped (clip)) + return FALSE; + + if (clip == NULL) + return TRUE; + + _cairo_gstate_user_to_backend (gstate, &x, &y); + + if (x < clip->extents.x || + x >= clip->extents.x + clip->extents.width || + y < clip->extents.y || + y >= clip->extents.y + clip->extents.height) + { + return FALSE; + } + + if (clip->num_boxes) { + int fx, fy; + + fx = _cairo_fixed_from_double (x); + fy = _cairo_fixed_from_double (y); + for (i = 0; i < clip->num_boxes; i++) { + if (fx >= clip->boxes[i].p1.x && fx <= clip->boxes[i].p2.x && + fy >= clip->boxes[i].p1.y && fy <= clip->boxes[i].p2.y) + break; + } + if (i == clip->num_boxes) + return FALSE; + } + + if (clip->path) { + cairo_clip_path_t *clip_path = clip->path; + do { + if (! _cairo_path_fixed_in_fill (&clip_path->path, + clip_path->fill_rule, + clip_path->tolerance, + x, y)) + return FALSE; + } while ((clip_path = clip_path->prev) != NULL); + } + + return TRUE; +} + +cairo_status_t +_cairo_gstate_copy_page (cairo_gstate_t *gstate) +{ + cairo_surface_copy_page (gstate->target); + return cairo_surface_status (gstate->target); +} + +cairo_status_t +_cairo_gstate_show_page (cairo_gstate_t *gstate) +{ + cairo_surface_show_page (gstate->target); + return cairo_surface_status (gstate->target); +} + +static void +_cairo_gstate_extents_to_user_rectangle (cairo_gstate_t *gstate, + const cairo_box_t *extents, + double *x1, double *y1, + double *x2, double *y2) +{ + double px1, py1, px2, py2; + + px1 = _cairo_fixed_to_double (extents->p1.x); + py1 = _cairo_fixed_to_double (extents->p1.y); + px2 = _cairo_fixed_to_double (extents->p2.x); + py2 = _cairo_fixed_to_double (extents->p2.y); + + _cairo_gstate_backend_to_user_rectangle (gstate, + &px1, &py1, &px2, &py2, + NULL); + if (x1) + *x1 = px1; + if (y1) + *y1 = py1; + if (x2) + *x2 = px2; + if (y2) + *y2 = py2; +} + +cairo_status_t +_cairo_gstate_stroke_extents (cairo_gstate_t *gstate, + cairo_path_fixed_t *path, + double *x1, double *y1, + double *x2, double *y2) +{ + cairo_int_status_t status; + cairo_box_t extents; + cairo_bool_t empty; + + if (x1) + *x1 = 0.0; + if (y1) + *y1 = 0.0; + if (x2) + *x2 = 0.0; + if (y2) + *y2 = 0.0; + + if (gstate->stroke_style.line_width <= 0.0) + return CAIRO_STATUS_SUCCESS; + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (_cairo_path_fixed_stroke_is_rectilinear (path)) { + cairo_boxes_t boxes; + + _cairo_boxes_init (&boxes); + status = _cairo_path_fixed_stroke_rectilinear_to_boxes (path, + &gstate->stroke_style, + &gstate->ctm, + gstate->antialias, + &boxes); + empty = boxes.num_boxes == 0; + if (! empty) + _cairo_boxes_extents (&boxes, &extents); + _cairo_boxes_fini (&boxes); + } + + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + cairo_polygon_t polygon; + + _cairo_polygon_init (&polygon, NULL, 0); + status = _cairo_path_fixed_stroke_to_polygon (path, + &gstate->stroke_style, + &gstate->ctm, + &gstate->ctm_inverse, + gstate->tolerance, + &polygon); + empty = polygon.num_edges == 0; + if (! empty) + extents = polygon.extents; + _cairo_polygon_fini (&polygon); + } + if (! empty) { + _cairo_gstate_extents_to_user_rectangle (gstate, &extents, + x1, y1, x2, y2); + } + + return status; +} + +cairo_status_t +_cairo_gstate_fill_extents (cairo_gstate_t *gstate, + cairo_path_fixed_t *path, + double *x1, double *y1, + double *x2, double *y2) +{ + cairo_status_t status; + cairo_box_t extents; + cairo_bool_t empty; + + if (x1) + *x1 = 0.0; + if (y1) + *y1 = 0.0; + if (x2) + *x2 = 0.0; + if (y2) + *y2 = 0.0; + + if (_cairo_path_fixed_fill_is_empty (path)) + return CAIRO_STATUS_SUCCESS; + + if (_cairo_path_fixed_fill_is_rectilinear (path)) { + cairo_boxes_t boxes; + + _cairo_boxes_init (&boxes); + status = _cairo_path_fixed_fill_rectilinear_to_boxes (path, + gstate->fill_rule, + gstate->antialias, + &boxes); + empty = boxes.num_boxes == 0; + if (! empty) + _cairo_boxes_extents (&boxes, &extents); + + _cairo_boxes_fini (&boxes); + } else { + cairo_traps_t traps; + + _cairo_traps_init (&traps); + + status = _cairo_path_fixed_fill_to_traps (path, + gstate->fill_rule, + gstate->tolerance, + &traps); + empty = traps.num_traps == 0; + if (! empty) + _cairo_traps_extents (&traps, &extents); + + _cairo_traps_fini (&traps); + } + + if (! empty) { + _cairo_gstate_extents_to_user_rectangle (gstate, &extents, + x1, y1, x2, y2); + } + + return status; +} + +cairo_status_t +_cairo_gstate_reset_clip (cairo_gstate_t *gstate) +{ + _cairo_clip_destroy (gstate->clip); + gstate->clip = NULL; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_gstate_clip (cairo_gstate_t *gstate, cairo_path_fixed_t *path) +{ + gstate->clip = + _cairo_clip_intersect_path (gstate->clip, + path, + gstate->fill_rule, + gstate->tolerance, + gstate->antialias); + /* XXX */ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_cairo_gstate_int_clip_extents (cairo_gstate_t *gstate, + cairo_rectangle_int_t *extents) +{ + cairo_bool_t is_bounded; + + is_bounded = _cairo_surface_get_extents (gstate->target, extents); + + if (gstate->clip) { + _cairo_rectangle_intersect (extents, + _cairo_clip_get_extents (gstate->clip)); + is_bounded = TRUE; + } + + return is_bounded; +} + +cairo_bool_t +_cairo_gstate_clip_extents (cairo_gstate_t *gstate, + double *x1, + double *y1, + double *x2, + double *y2) +{ + cairo_rectangle_int_t extents; + double px1, py1, px2, py2; + + if (! _cairo_gstate_int_clip_extents (gstate, &extents)) + return FALSE; + + px1 = extents.x; + py1 = extents.y; + px2 = extents.x + (int) extents.width; + py2 = extents.y + (int) extents.height; + + _cairo_gstate_backend_to_user_rectangle (gstate, + &px1, &py1, &px2, &py2, + NULL); + + if (x1) + *x1 = px1; + if (y1) + *y1 = py1; + if (x2) + *x2 = px2; + if (y2) + *y2 = py2; + + return TRUE; +} + +cairo_rectangle_list_t* +_cairo_gstate_copy_clip_rectangle_list (cairo_gstate_t *gstate) +{ + cairo_rectangle_int_t extents; + cairo_rectangle_list_t *list; + cairo_clip_t *clip; + + if (_cairo_surface_get_extents (gstate->target, &extents)) + clip = _cairo_clip_copy_intersect_rectangle (gstate->clip, &extents); + else + clip = gstate->clip; + + list = _cairo_clip_copy_rectangle_list (clip, gstate); + + if (clip != gstate->clip) + _cairo_clip_destroy (clip); + + return list; +} + +cairo_status_t +_cairo_gstate_tag_begin (cairo_gstate_t *gstate, + const char *tag_name, const char *attributes) +{ + return _cairo_surface_tag (gstate->target, + TRUE, /* begin */ + tag_name, + attributes ? attributes : ""); +} + +cairo_status_t +_cairo_gstate_tag_end (cairo_gstate_t *gstate, + const char *tag_name) +{ + return _cairo_surface_tag (gstate->target, + FALSE, /* begin */ + tag_name, + NULL); /* attributes */ +} + +static void +_cairo_gstate_unset_scaled_font (cairo_gstate_t *gstate) +{ + if (gstate->scaled_font == NULL) + return; + + if (gstate->previous_scaled_font != NULL) + cairo_scaled_font_destroy (gstate->previous_scaled_font); + + gstate->previous_scaled_font = gstate->scaled_font; + gstate->scaled_font = NULL; +} + +cairo_status_t +_cairo_gstate_set_font_size (cairo_gstate_t *gstate, + double size) +{ + _cairo_gstate_unset_scaled_font (gstate); + + cairo_matrix_init_scale (&gstate->font_matrix, size, size); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_gstate_set_font_matrix (cairo_gstate_t *gstate, + const cairo_matrix_t *matrix) +{ + if (memcmp (matrix, &gstate->font_matrix, sizeof (cairo_matrix_t)) == 0) + return CAIRO_STATUS_SUCCESS; + + _cairo_gstate_unset_scaled_font (gstate); + + gstate->font_matrix = *matrix; + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_gstate_get_font_matrix (cairo_gstate_t *gstate, + cairo_matrix_t *matrix) +{ + *matrix = gstate->font_matrix; +} + +void +_cairo_gstate_set_font_options (cairo_gstate_t *gstate, + const cairo_font_options_t *options) +{ + if (_cairo_font_options_compare (options, &gstate->font_options)) + return; + + _cairo_gstate_unset_scaled_font (gstate); + + _cairo_font_options_fini (&gstate->font_options); + _cairo_font_options_init_copy (&gstate->font_options, options); +} + +void +_cairo_gstate_get_font_options (cairo_gstate_t *gstate, + cairo_font_options_t *options) +{ + _cairo_font_options_fini (options); + _cairo_font_options_init_copy (options, &gstate->font_options); +} + +cairo_status_t +_cairo_gstate_get_font_face (cairo_gstate_t *gstate, + cairo_font_face_t **font_face) +{ + cairo_status_t status; + + status = _cairo_gstate_ensure_font_face (gstate); + if (unlikely (status)) + return status; + + *font_face = gstate->font_face; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_gstate_get_scaled_font (cairo_gstate_t *gstate, + cairo_scaled_font_t **scaled_font) +{ + cairo_status_t status; + + status = _cairo_gstate_ensure_scaled_font (gstate); + if (unlikely (status)) + return status; + + *scaled_font = gstate->scaled_font; + + return CAIRO_STATUS_SUCCESS; +} + +/* + * Like everything else in this file, fonts involve Too Many Coordinate Spaces; + * it is easy to get confused about what's going on. + * + * The user's view + * --------------- + * + * Users ask for things in user space. When cairo starts, a user space unit + * is about 1/96 inch, which is similar to (but importantly different from) + * the normal "point" units most users think in terms of. When a user + * selects a font, its scale is set to "one user unit". The user can then + * independently scale the user coordinate system *or* the font matrix, in + * order to adjust the rendered size of the font. + * + * Metrics are returned in user space, whether they are obtained from + * the currently selected font in a #cairo_t or from a #cairo_scaled_font_t + * which is a font specialized to a particular scale matrix, CTM, and target + * surface. + * + * The font's view + * --------------- + * + * Fonts are designed and stored (in say .ttf files) in "font space", which + * describes an "EM Square" (a design tile) and has some abstract number + * such as 1000, 1024, or 2048 units per "EM". This is basically an + * uninteresting space for us, but we need to remember that it exists. + * + * Font resources (from libraries or operating systems) render themselves + * to a particular device. Since they do not want to make most programmers + * worry about the font design space, the scaling API is simplified to + * involve just telling the font the required pixel size of the EM square + * (that is, in device space). + * + * + * Cairo's gstate view + * ------------------- + * + * In addition to the CTM and CTM inverse, we keep a matrix in the gstate + * called the "font matrix" which describes the user's most recent + * font-scaling or font-transforming request. This is kept in terms of an + * abstract scale factor, composed with the CTM and used to set the font's + * pixel size. So if the user asks to "scale the font by 12", the matrix + * is: + * + * [ 12.0, 0.0, 0.0, 12.0, 0.0, 0.0 ] + * + * It is an affine matrix, like all cairo matrices, where its tx and ty + * components are used to "nudging" fonts around and are handled in gstate + * and then ignored by the "scaled-font" layer. + * + * In order to perform any action on a font, we must build an object + * called a #cairo_font_scale_t; this contains the central 2x2 matrix + * resulting from "font matrix * CTM" (sans the font matrix translation + * components as stated in the previous paragraph). + * + * We pass this to the font when making requests of it, which causes it to + * reply for a particular [user request, device] combination, under the CTM + * (to accommodate the "zoom in" == "bigger fonts" issue above). + * + * The other terms in our communication with the font are therefore in + * device space. When we ask it to perform text->glyph conversion, it will + * produce a glyph string in device space. Glyph vectors we pass to it for + * measuring or rendering should be in device space. The metrics which we + * get back from the font will be in device space. The contents of the + * global glyph image cache will be in device space. + * + * + * Cairo's public view + * ------------------- + * + * Since the values entering and leaving via public API calls are in user + * space, the gstate functions typically need to multiply arguments by the + * CTM (for user-input glyph vectors), and return values by the CTM inverse + * (for font responses such as metrics or glyph vectors). + * + */ + +static cairo_status_t +_cairo_gstate_ensure_font_face (cairo_gstate_t *gstate) +{ + cairo_font_face_t *font_face; + + if (gstate->font_face != NULL) + return gstate->font_face->status; + + + font_face = cairo_toy_font_face_create (CAIRO_FONT_FAMILY_DEFAULT, + CAIRO_FONT_SLANT_DEFAULT, + CAIRO_FONT_WEIGHT_DEFAULT); + if (font_face->status) + return font_face->status; + + gstate->font_face = font_face; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_gstate_ensure_scaled_font (cairo_gstate_t *gstate) +{ + cairo_status_t status; + cairo_font_options_t options; + cairo_scaled_font_t *scaled_font; + cairo_matrix_t font_ctm; + + if (gstate->scaled_font != NULL) + return gstate->scaled_font->status; + + status = _cairo_gstate_ensure_font_face (gstate); + if (unlikely (status)) + return status; + + cairo_surface_get_font_options (gstate->target, &options); + cairo_font_options_merge (&options, &gstate->font_options); + + cairo_matrix_multiply (&font_ctm, + &gstate->ctm, + &gstate->target->device_transform); + + scaled_font = cairo_scaled_font_create (gstate->font_face, + &gstate->font_matrix, + &font_ctm, + &options); + + _cairo_font_options_fini (&options); + + status = cairo_scaled_font_status (scaled_font); + if (unlikely (status)) + return status; + + gstate->scaled_font = scaled_font; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_gstate_get_font_extents (cairo_gstate_t *gstate, + cairo_font_extents_t *extents) +{ + cairo_status_t status = _cairo_gstate_ensure_scaled_font (gstate); + if (unlikely (status)) + return status; + + cairo_scaled_font_extents (gstate->scaled_font, extents); + + return cairo_scaled_font_status (gstate->scaled_font); +} + +cairo_status_t +_cairo_gstate_set_font_face (cairo_gstate_t *gstate, + cairo_font_face_t *font_face) +{ + if (font_face && font_face->status) + return _cairo_error (font_face->status); + + if (font_face == gstate->font_face) + return CAIRO_STATUS_SUCCESS; + + cairo_font_face_destroy (gstate->font_face); + gstate->font_face = cairo_font_face_reference (font_face); + + _cairo_gstate_unset_scaled_font (gstate); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_gstate_glyph_extents (cairo_gstate_t *gstate, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_text_extents_t *extents) +{ + cairo_status_t status; + + status = _cairo_gstate_ensure_scaled_font (gstate); + if (unlikely (status)) + return status; + + cairo_scaled_font_glyph_extents (gstate->scaled_font, + glyphs, num_glyphs, + extents); + + return cairo_scaled_font_status (gstate->scaled_font); +} + +cairo_status_t +_cairo_gstate_show_text_glyphs (cairo_gstate_t *gstate, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_glyph_text_info_t *info) +{ + cairo_glyph_t stack_transformed_glyphs[CAIRO_STACK_ARRAY_LENGTH (cairo_glyph_t)]; + cairo_text_cluster_t stack_transformed_clusters[CAIRO_STACK_ARRAY_LENGTH (cairo_text_cluster_t)]; + cairo_pattern_union_t source_pattern; + cairo_glyph_t *transformed_glyphs; + const cairo_pattern_t *pattern; + cairo_text_cluster_t *transformed_clusters; + cairo_operator_t op; + cairo_status_t status; + + status = _cairo_gstate_get_pattern_status (gstate->source); + if (unlikely (status)) + return status; + + if (gstate->op == CAIRO_OPERATOR_DEST) + return CAIRO_STATUS_SUCCESS; + + if (_cairo_clip_is_all_clipped (gstate->clip)) + return CAIRO_STATUS_SUCCESS; + + status = _cairo_gstate_ensure_scaled_font (gstate); + if (unlikely (status)) + return status; + + transformed_glyphs = stack_transformed_glyphs; + transformed_clusters = stack_transformed_clusters; + + if (num_glyphs > ARRAY_LENGTH (stack_transformed_glyphs)) { + transformed_glyphs = cairo_glyph_allocate (num_glyphs); + if (unlikely (transformed_glyphs == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + if (info != NULL) { + if (info->num_clusters > ARRAY_LENGTH (stack_transformed_clusters)) { + transformed_clusters = cairo_text_cluster_allocate (info->num_clusters); + if (unlikely (transformed_clusters == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_GLYPHS; + } + } + + _cairo_gstate_transform_glyphs_to_backend (gstate, + glyphs, num_glyphs, + info->clusters, + info->num_clusters, + info->cluster_flags, + transformed_glyphs, + &num_glyphs, + transformed_clusters, + TRUE); + } else { + _cairo_gstate_transform_glyphs_to_backend (gstate, + glyphs, num_glyphs, + NULL, 0, 0, + transformed_glyphs, + &num_glyphs, + NULL, + TRUE); + } + + if (num_glyphs == 0) + goto CLEANUP_GLYPHS; + + op = _reduce_op (gstate); + if (op == CAIRO_OPERATOR_CLEAR) { + pattern = &_cairo_pattern_clear.base; + } else { + _cairo_gstate_copy_transformed_source (gstate, &source_pattern.base); + pattern = &source_pattern.base; + } + + /* For really huge font sizes, we can just do path;fill instead of + * show_glyphs, as show_glyphs would put excess pressure on the cache, + * and moreover, not all components below us correctly handle huge font + * sizes. I wanted to set the limit at 256. But alas, seems like cairo's + * rasterizer is something like ten times slower than freetype's for huge + * sizes. So, no win just yet. For now, do it for insanely-huge sizes, + * just to make sure we don't make anyone unhappy. When we get a really + * fast rasterizer in cairo, we may want to readjust this. + * + * Needless to say, do this only if show_text_glyphs is not available. */ + if (cairo_surface_has_show_text_glyphs (gstate->target) || + _cairo_scaled_font_get_max_scale (gstate->scaled_font) <= 10240) + { + + if (info != NULL) { + status = _cairo_surface_show_text_glyphs (gstate->target, op, pattern, + info->utf8, info->utf8_len, + transformed_glyphs, num_glyphs, + transformed_clusters, info->num_clusters, + info->cluster_flags, + gstate->scaled_font, + gstate->clip); + } else { + status = _cairo_surface_show_text_glyphs (gstate->target, op, pattern, + NULL, 0, + transformed_glyphs, num_glyphs, + NULL, 0, 0, + gstate->scaled_font, + gstate->clip); + } + } + else + { + cairo_path_fixed_t path; + + _cairo_path_fixed_init (&path); + + status = _cairo_scaled_font_glyph_path (gstate->scaled_font, + transformed_glyphs, num_glyphs, + &path); + + if (status == CAIRO_STATUS_SUCCESS) { + status = _cairo_surface_fill (gstate->target, op, pattern, + &path, + CAIRO_FILL_RULE_WINDING, + gstate->tolerance, + gstate->scaled_font->options.antialias, + gstate->clip); + } + + _cairo_path_fixed_fini (&path); + } + +CLEANUP_GLYPHS: + if (transformed_glyphs != stack_transformed_glyphs) + cairo_glyph_free (transformed_glyphs); + if (transformed_clusters != stack_transformed_clusters) + cairo_text_cluster_free (transformed_clusters); + + return status; +} + +cairo_status_t +_cairo_gstate_glyph_path (cairo_gstate_t *gstate, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_path_fixed_t *path) +{ + cairo_glyph_t stack_transformed_glyphs[CAIRO_STACK_ARRAY_LENGTH (cairo_glyph_t)]; + cairo_glyph_t *transformed_glyphs; + cairo_status_t status; + + status = _cairo_gstate_ensure_scaled_font (gstate); + if (unlikely (status)) + return status; + + if (num_glyphs < ARRAY_LENGTH (stack_transformed_glyphs)) { + transformed_glyphs = stack_transformed_glyphs; + } else { + transformed_glyphs = cairo_glyph_allocate (num_glyphs); + if (unlikely (transformed_glyphs == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + _cairo_gstate_transform_glyphs_to_backend (gstate, + glyphs, num_glyphs, + NULL, 0, 0, + transformed_glyphs, + &num_glyphs, NULL, FALSE); + + status = _cairo_scaled_font_glyph_path (gstate->scaled_font, + transformed_glyphs, num_glyphs, + path); + + if (transformed_glyphs != stack_transformed_glyphs) + cairo_glyph_free (transformed_glyphs); + + return status; +} + +cairo_status_t +_cairo_gstate_set_antialias (cairo_gstate_t *gstate, + cairo_antialias_t antialias) +{ + gstate->antialias = antialias; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_antialias_t +_cairo_gstate_get_antialias (cairo_gstate_t *gstate) +{ + return gstate->antialias; +} + +/** + * _cairo_gstate_transform_glyphs_to_backend: + * @gstate: a #cairo_gstate_t + * @glyphs: the array of #cairo_glyph_t objects to be transformed + * @num_glyphs: the number of elements in @glyphs + * @transformed_glyphs: a pre-allocated array of at least @num_glyphs + * #cairo_glyph_t objects + * @num_transformed_glyphs: the number of elements in @transformed_glyphs + * after dropping out of bounds glyphs, or %NULL if glyphs shouldn't be + * dropped + * + * Transform an array of glyphs to backend space by first adding the offset + * of the font matrix, then transforming from user space to backend space. + * The result of the transformation is placed in @transformed_glyphs. + * + * This also uses information from the scaled font and the surface to + * cull/drop glyphs that will not be visible. + **/ +static void +_cairo_gstate_transform_glyphs_to_backend (cairo_gstate_t *gstate, + const cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_glyph_t *transformed_glyphs, + int *num_transformed_glyphs, + cairo_text_cluster_t *transformed_clusters, + cairo_bool_t perform_early_clip) +{ + cairo_rectangle_int_t surface_extents; + cairo_matrix_t *ctm = &gstate->ctm; + cairo_matrix_t *font_matrix = &gstate->font_matrix; + cairo_matrix_t *device_transform = &gstate->target->device_transform; + cairo_bool_t drop = FALSE; + double x1 = 0, x2 = 0, y1 = 0, y2 = 0; + int i, j, k; + + drop = TRUE; + if (!perform_early_clip || !_cairo_gstate_int_clip_extents (gstate, &surface_extents)) { + drop = FALSE; /* unbounded surface */ + } else { + double scale10 = 10 * _cairo_scaled_font_get_max_scale (gstate->scaled_font); + if (surface_extents.width == 0 || surface_extents.height == 0) { + /* No visible area. Don't draw anything */ + *num_transformed_glyphs = 0; + return; + } + /* XXX We currently drop any glyphs that have their position outside + * of the surface boundaries by a safety margin depending on the + * font scale. This however can fail in extreme cases where the + * font has really long swashes for example... We can correctly + * handle that by looking the glyph up and using its device bbox + * to device if it's going to be visible, but I'm not inclined to + * do that now. + */ + x1 = surface_extents.x - scale10; + y1 = surface_extents.y - scale10; + x2 = surface_extents.x + (int) surface_extents.width + scale10; + y2 = surface_extents.y + (int) surface_extents.height + scale10; + } + + if (!drop) + *num_transformed_glyphs = num_glyphs; + +#define KEEP_GLYPH(glyph) (x1 <= glyph.x && glyph.x <= x2 && y1 <= glyph.y && glyph.y <= y2) + + j = 0; + if (_cairo_matrix_is_identity (ctm) && + _cairo_matrix_is_identity (device_transform) && + font_matrix->x0 == 0 && font_matrix->y0 == 0) + { + if (! drop) { + memcpy (transformed_glyphs, glyphs, + num_glyphs * sizeof (cairo_glyph_t)); + memcpy (transformed_clusters, clusters, + num_clusters * sizeof (cairo_text_cluster_t)); + j = num_glyphs; + } else if (num_clusters == 0) { + for (i = 0; i < num_glyphs; i++) { + transformed_glyphs[j].index = glyphs[i].index; + transformed_glyphs[j].x = glyphs[i].x; + transformed_glyphs[j].y = glyphs[i].y; + if (KEEP_GLYPH (transformed_glyphs[j])) + j++; + } + } else { + const cairo_glyph_t *cur_glyph; + + if (cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD) + cur_glyph = glyphs + num_glyphs - 1; + else + cur_glyph = glyphs; + + for (i = 0; i < num_clusters; i++) { + cairo_bool_t cluster_visible = FALSE; + + for (k = 0; k < clusters[i].num_glyphs; k++) { + transformed_glyphs[j+k].index = cur_glyph->index; + transformed_glyphs[j+k].x = cur_glyph->x; + transformed_glyphs[j+k].y = cur_glyph->y; + if (KEEP_GLYPH (transformed_glyphs[j+k])) + cluster_visible = TRUE; + + if (cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD) + cur_glyph--; + else + cur_glyph++; + } + + transformed_clusters[i] = clusters[i]; + if (cluster_visible) + j += k; + else + transformed_clusters[i].num_glyphs = 0; + } + } + } + else if (_cairo_matrix_is_translation (ctm) && + _cairo_matrix_is_translation (device_transform)) + { + double tx = font_matrix->x0 + ctm->x0 + device_transform->x0; + double ty = font_matrix->y0 + ctm->y0 + device_transform->y0; + + if (! drop || num_clusters == 0) { + for (i = 0; i < num_glyphs; i++) { + transformed_glyphs[j].index = glyphs[i].index; + transformed_glyphs[j].x = glyphs[i].x + tx; + transformed_glyphs[j].y = glyphs[i].y + ty; + if (!drop || KEEP_GLYPH (transformed_glyphs[j])) + j++; + } + memcpy (transformed_clusters, clusters, + num_clusters * sizeof (cairo_text_cluster_t)); + } else { + const cairo_glyph_t *cur_glyph; + + if (cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD) + cur_glyph = glyphs + num_glyphs - 1; + else + cur_glyph = glyphs; + + for (i = 0; i < num_clusters; i++) { + cairo_bool_t cluster_visible = FALSE; + + for (k = 0; k < clusters[i].num_glyphs; k++) { + transformed_glyphs[j+k].index = cur_glyph->index; + transformed_glyphs[j+k].x = cur_glyph->x + tx; + transformed_glyphs[j+k].y = cur_glyph->y + ty; + if (KEEP_GLYPH (transformed_glyphs[j+k])) + cluster_visible = TRUE; + + if (cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD) + cur_glyph--; + else + cur_glyph++; + } + + transformed_clusters[i] = clusters[i]; + if (cluster_visible) + j += k; + else + transformed_clusters[i].num_glyphs = 0; + } + } + } + else + { + cairo_matrix_t aggregate_transform; + + cairo_matrix_init_translate (&aggregate_transform, + gstate->font_matrix.x0, + gstate->font_matrix.y0); + cairo_matrix_multiply (&aggregate_transform, + &aggregate_transform, ctm); + cairo_matrix_multiply (&aggregate_transform, + &aggregate_transform, device_transform); + + if (! drop || num_clusters == 0) { + for (i = 0; i < num_glyphs; i++) { + transformed_glyphs[j] = glyphs[i]; + cairo_matrix_transform_point (&aggregate_transform, + &transformed_glyphs[j].x, + &transformed_glyphs[j].y); + if (! drop || KEEP_GLYPH (transformed_glyphs[j])) + j++; + } + memcpy (transformed_clusters, clusters, + num_clusters * sizeof (cairo_text_cluster_t)); + } else { + const cairo_glyph_t *cur_glyph; + + if (cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD) + cur_glyph = glyphs + num_glyphs - 1; + else + cur_glyph = glyphs; + + for (i = 0; i < num_clusters; i++) { + cairo_bool_t cluster_visible = FALSE; + for (k = 0; k < clusters[i].num_glyphs; k++) { + transformed_glyphs[j+k] = *cur_glyph; + cairo_matrix_transform_point (&aggregate_transform, + &transformed_glyphs[j+k].x, + &transformed_glyphs[j+k].y); + if (KEEP_GLYPH (transformed_glyphs[j+k])) + cluster_visible = TRUE; + + if (cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD) + cur_glyph--; + else + cur_glyph++; + } + + transformed_clusters[i] = clusters[i]; + if (cluster_visible) + j += k; + else + transformed_clusters[i].num_glyphs = 0; + } + } + } + *num_transformed_glyphs = j; + + if (num_clusters != 0 && cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD) { + for (i = 0; i < --j; i++) { + cairo_glyph_t tmp; + + tmp = transformed_glyphs[i]; + transformed_glyphs[i] = transformed_glyphs[j]; + transformed_glyphs[j] = tmp; + } + } +} diff --git a/local/recipes/libs/cairo/source/src/cairo-hash-private.h b/local/recipes/libs/cairo/source/src/cairo-hash-private.h new file mode 100644 index 0000000000..30e51ffe66 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-hash-private.h @@ -0,0 +1,87 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 Red Hat, Inc. + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Keith Packard + * Graydon Hoare + * Carl Worth + */ + +#ifndef CAIRO_HASH_PRIVATE_H +#define CAIRO_HASH_PRIVATE_H + +#include "cairo-compiler-private.h" +#include "cairo-types-private.h" + +/* XXX: I'd like this file to be self-contained in terms of + * includeability, but that's not really possible with the current + * monolithic cairoint.h. So, for now, just include cairoint.h instead + * if you want to include this file. */ + +typedef cairo_bool_t +(*cairo_hash_keys_equal_func_t) (const void *key_a, const void *key_b); + +typedef cairo_bool_t +(*cairo_hash_predicate_func_t) (const void *entry); + +typedef void +(*cairo_hash_callback_func_t) (void *entry, + void *closure); + +cairo_private cairo_hash_table_t * +_cairo_hash_table_create (cairo_hash_keys_equal_func_t keys_equal); + +cairo_private void +_cairo_hash_table_destroy (cairo_hash_table_t *hash_table); + +cairo_private void * +_cairo_hash_table_lookup (cairo_hash_table_t *hash_table, + cairo_hash_entry_t *key); + +cairo_private void * +_cairo_hash_table_random_entry (cairo_hash_table_t *hash_table, + cairo_hash_predicate_func_t predicate); + +cairo_private cairo_status_t +_cairo_hash_table_insert (cairo_hash_table_t *hash_table, + cairo_hash_entry_t *entry); + +cairo_private void +_cairo_hash_table_remove (cairo_hash_table_t *hash_table, + cairo_hash_entry_t *key); + +cairo_private void +_cairo_hash_table_foreach (cairo_hash_table_t *hash_table, + cairo_hash_callback_func_t hash_callback, + void *closure); + +#endif diff --git a/local/recipes/libs/cairo/source/src/cairo-hash.c b/local/recipes/libs/cairo/source/src/cairo-hash.c new file mode 100644 index 0000000000..6aba636cfc --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-hash.c @@ -0,0 +1,578 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 Red Hat, Inc. + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Keith Packard + * Graydon Hoare + * Carl Worth + */ + +#include "cairoint.h" +#include "cairo-error-private.h" + +/* + * An entry can be in one of three states: + * + * FREE: Entry has never been used, terminates all searches. + * Appears in the table as a %NULL pointer. + * + * DEAD: Entry had been live in the past. A dead entry can be reused + * but does not terminate a search for an exact entry. + * Appears in the table as a pointer to DEAD_ENTRY. + * + * LIVE: Entry is currently being used. + * Appears in the table as any non-%NULL, non-DEAD_ENTRY pointer. + */ + +#define DEAD_ENTRY ((cairo_hash_entry_t *) 0x1) + +#define ENTRY_IS_FREE(entry) ((entry) == NULL) +#define ENTRY_IS_DEAD(entry) ((entry) == DEAD_ENTRY) +#define ENTRY_IS_LIVE(entry) ((entry) > DEAD_ENTRY) + +/* + * This table is open-addressed with double hashing. Each table size + * is a prime and it makes for the "first" hash modulus; a second + * prime (2 less than the first prime) serves as the "second" hash + * modulus, which is smaller and thus guarantees a complete + * permutation of table indices. + * + * Hash tables are rehashed in order to keep between 12.5% and 50% + * entries in the hash table alive and at least 25% free. When table + * size is changed, the new table has about 25% live elements. + * + * The free entries guarantee an expected constant-time lookup. + * Doubling/halving the table in the described fashion guarantees + * amortized O(1) insertion/removal. + * + * This structure, and accompanying table, is borrowed/modified from the + * file xserver/render/glyph.c in the freedesktop.org x server, with + * permission (and suggested modification of doubling sizes) by Keith + * Packard. + */ + +static const unsigned long hash_table_sizes[] = { + 43, + 73, + 151, + 283, + 571, + 1153, + 2269, + 4519, + 9013, + 18043, + 36109, + 72091, + 144409, + 288361, + 576883, + 1153459, + 2307163, + 4613893, + 9227641, + 18455029, + 36911011, + 73819861, + 147639589, + 295279081, + 590559793 +}; + +struct _cairo_hash_table { + cairo_hash_keys_equal_func_t keys_equal; + + cairo_hash_entry_t *cache[32]; + + const unsigned long *table_size; + cairo_hash_entry_t **entries; + + unsigned long live_entries; + unsigned long free_entries; + unsigned long iterating; /* Iterating, no insert, no resize */ +}; + +/** + * _cairo_hash_table_uid_keys_equal: + * @key_a: the first key to be compared + * @key_b: the second key to be compared + * + * Provides a #cairo_hash_keys_equal_func_t which always returns + * %TRUE. This is useful to create hash tables using keys whose hash + * completely describes the key, because in this special case + * comparing the hashes is sufficient to guarantee that the keys are + * equal. + * + * Return value: %TRUE. + **/ +static cairo_bool_t +_cairo_hash_table_uid_keys_equal (const void *key_a, const void *key_b) +{ + return TRUE; +} + +/** + * _cairo_hash_table_create: + * @keys_equal: a function to return %TRUE if two keys are equal + * + * Creates a new hash table which will use the keys_equal() function + * to compare hash keys. Data is provided to the hash table in the + * form of user-derived versions of #cairo_hash_entry_t. A hash entry + * must be able to hold both a key (including a hash code) and a + * value. Sometimes only the key will be necessary, (as in + * _cairo_hash_table_remove), and other times both a key and a value + * will be necessary, (as in _cairo_hash_table_insert). + * + * If @keys_equal is %NULL, two keys will be considered equal if and + * only if their hashes are equal. + * + * See #cairo_hash_entry_t for more details. + * + * Return value: the new hash table or %NULL if out of memory. + **/ +cairo_hash_table_t * +_cairo_hash_table_create (cairo_hash_keys_equal_func_t keys_equal) +{ + cairo_hash_table_t *hash_table; + + hash_table = _cairo_calloc (sizeof (cairo_hash_table_t)); + if (unlikely (hash_table == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return NULL; + } + + if (keys_equal == NULL) + hash_table->keys_equal = _cairo_hash_table_uid_keys_equal; + else + hash_table->keys_equal = keys_equal; + + memset (&hash_table->cache, 0, sizeof (hash_table->cache)); + hash_table->table_size = &hash_table_sizes[0]; + + hash_table->entries = _cairo_calloc_ab (*hash_table->table_size, + sizeof (cairo_hash_entry_t *)); + if (unlikely (hash_table->entries == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + free (hash_table); + return NULL; + } + + hash_table->live_entries = 0; + hash_table->free_entries = *hash_table->table_size; + hash_table->iterating = 0; + + return hash_table; +} + +/** + * _cairo_hash_table_destroy: + * @hash_table: an empty hash table to destroy + * + * Immediately destroys the given hash table, freeing all resources + * associated with it. + * + * WARNING: The hash_table must have no live entries in it before + * _cairo_hash_table_destroy is called. It is a fatal error otherwise, + * and this function will halt. The rationale for this behavior is to + * avoid memory leaks and to avoid needless complication of the API + * with destroy notify callbacks. + * + * WARNING: The hash_table must have no running iterators in it when + * _cairo_hash_table_destroy is called. It is a fatal error otherwise, + * and this function will halt. + **/ +void +_cairo_hash_table_destroy (cairo_hash_table_t *hash_table) +{ + /* The hash table must be empty. Otherwise, halt. */ + assert (hash_table->live_entries == 0); + /* No iterators can be running. Otherwise, halt. */ + assert (hash_table->iterating == 0); + + free (hash_table->entries); + free (hash_table); +} + +static cairo_hash_entry_t ** +_cairo_hash_table_lookup_unique_key (cairo_hash_table_t *hash_table, + cairo_hash_entry_t *key) +{ + unsigned long table_size, i, idx, step; + cairo_hash_entry_t **entry; + + table_size = *hash_table->table_size; + idx = key->hash % table_size; + + entry = &hash_table->entries[idx]; + if (! ENTRY_IS_LIVE (*entry)) + return entry; + + i = 1; + step = 1 + key->hash % (table_size - 2); + do { + idx += step; + if (idx >= table_size) + idx -= table_size; + + entry = &hash_table->entries[idx]; + if (! ENTRY_IS_LIVE (*entry)) + return entry; + } while (++i < table_size); + + ASSERT_NOT_REACHED; + return NULL; +} + +/** + * _cairo_hash_table_manage: + * @hash_table: a hash table + * + * Resize the hash table if the number of entries has gotten much + * bigger or smaller than the ideal number of entries for the current + * size and guarantee some free entries to be used as lookup + * termination points. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful or + * %CAIRO_STATUS_NO_MEMORY if out of memory. + **/ +static cairo_status_t +_cairo_hash_table_manage (cairo_hash_table_t *hash_table) +{ + cairo_hash_table_t tmp; + unsigned long new_size, i; + + /* Keep between 12.5% and 50% entries in the hash table alive and + * at least 25% free. */ + unsigned long live_high = *hash_table->table_size >> 1; + unsigned long live_low = live_high >> 2; + unsigned long free_low = live_high >> 1; + + tmp = *hash_table; + + if (hash_table->live_entries > live_high) + { + tmp.table_size = hash_table->table_size + 1; + /* This code is being abused if we can't make a table big enough. */ + assert (tmp.table_size - hash_table_sizes < + ARRAY_LENGTH (hash_table_sizes)); + } + else if (hash_table->live_entries < live_low) + { + /* Can't shrink if we're at the smallest size */ + if (hash_table->table_size == &hash_table_sizes[0]) + tmp.table_size = hash_table->table_size; + else + tmp.table_size = hash_table->table_size - 1; + } + + if (tmp.table_size == hash_table->table_size && + hash_table->free_entries > free_low) + { + /* The number of live entries is within the desired bounds + * (we're not going to resize the table) and we have enough + * free entries. Do nothing. */ + return CAIRO_STATUS_SUCCESS; + } + + new_size = *tmp.table_size; + tmp.entries = _cairo_calloc_ab (new_size, sizeof (cairo_hash_entry_t*)); + if (unlikely (tmp.entries == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + for (i = 0; i < *hash_table->table_size; ++i) { + if (ENTRY_IS_LIVE (hash_table->entries[i])) { + *_cairo_hash_table_lookup_unique_key (&tmp, hash_table->entries[i]) + = hash_table->entries[i]; + } + } + + free (hash_table->entries); + hash_table->entries = tmp.entries; + hash_table->table_size = tmp.table_size; + hash_table->free_entries = new_size - hash_table->live_entries; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * _cairo_hash_table_lookup: + * @hash_table: a hash table + * @key: the key of interest + * + * Performs a lookup in @hash_table looking for an entry which has a + * key that matches @key, (as determined by the keys_equal() function + * passed to _cairo_hash_table_create). + * + * Return value: the matching entry, of %NULL if no match was found. + **/ +void * +_cairo_hash_table_lookup (cairo_hash_table_t *hash_table, + cairo_hash_entry_t *key) +{ + cairo_hash_entry_t *entry; + unsigned long table_size, i, idx, step; + uintptr_t hash = key->hash; + + entry = hash_table->cache[hash & 31]; + if (entry && entry->hash == hash && hash_table->keys_equal (key, entry)) + return entry; + + table_size = *hash_table->table_size; + idx = hash % table_size; + + entry = hash_table->entries[idx]; + if (ENTRY_IS_LIVE (entry)) { + if (entry->hash == hash && hash_table->keys_equal (key, entry)) + goto insert_cache; + } else if (ENTRY_IS_FREE (entry)) + return NULL; + + i = 1; + step = 1 + hash % (table_size - 2); + do { + idx += step; + if (idx >= table_size) + idx -= table_size; + + entry = hash_table->entries[idx]; + if (ENTRY_IS_LIVE (entry)) { + if (entry->hash == hash && hash_table->keys_equal (key, entry)) + goto insert_cache; + } else if (ENTRY_IS_FREE (entry)) + return NULL; + } while (++i < table_size); + + ASSERT_NOT_REACHED; + return NULL; + +insert_cache: + hash_table->cache[hash & 31] = entry; + return entry; +} + +/** + * _cairo_hash_table_random_entry: + * @hash_table: a hash table + * @predicate: a predicate function. + * + * Find a random entry in the hash table satisfying the given + * @predicate. + * + * We use the same algorithm as the lookup algorithm to walk over the + * entries in the hash table in a pseudo-random order. Walking + * linearly would favor entries following gaps in the hash table. We + * could also call rand() repeatedly, which works well for almost-full + * tables, but degrades when the table is almost empty, or predicate + * returns %TRUE for most entries. + * + * Return value: a random live entry or %NULL if there are no entries + * that match the given predicate. In particular, if predicate is + * %NULL, a %NULL return value indicates that the table is empty. + **/ +void * +_cairo_hash_table_random_entry (cairo_hash_table_t *hash_table, + cairo_hash_predicate_func_t predicate) +{ + cairo_hash_entry_t *entry; + unsigned long hash; + unsigned long table_size, i, idx, step; + + assert (predicate != NULL); + + table_size = *hash_table->table_size; + hash = rand (); + idx = hash % table_size; + + entry = hash_table->entries[idx]; + if (ENTRY_IS_LIVE (entry) && predicate (entry)) + return entry; + + i = 1; + step = 1 + hash % (table_size - 2); + do { + idx += step; + if (idx >= table_size) + idx -= table_size; + + entry = hash_table->entries[idx]; + if (ENTRY_IS_LIVE (entry) && predicate (entry)) + return entry; + } while (++i < table_size); + + return NULL; +} + +/** + * _cairo_hash_table_insert: + * @hash_table: a hash table + * @key_and_value: an entry to be inserted + * + * Insert the entry #key_and_value into the hash table. + * + * WARNING: There must not be an existing entry in the hash table + * with a matching key. + * + * WARNING: It is a fatal error to insert an element while + * an iterator is running + * + * Instead of using insert to replace an entry, consider just editing + * the entry obtained with _cairo_hash_table_lookup. Or if absolutely + * necessary, use _cairo_hash_table_remove first. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful or + * %CAIRO_STATUS_NO_MEMORY if insufficient memory is available. + **/ +cairo_status_t +_cairo_hash_table_insert (cairo_hash_table_t *hash_table, + cairo_hash_entry_t *key_and_value) +{ + cairo_hash_entry_t **entry; + cairo_status_t status; + + /* Insert is illegal while an iterator is running. */ + assert (hash_table->iterating == 0); + + status = _cairo_hash_table_manage (hash_table); + if (unlikely (status)) + return status; + + entry = _cairo_hash_table_lookup_unique_key (hash_table, key_and_value); + + if (ENTRY_IS_FREE (*entry)) + hash_table->free_entries--; + + *entry = key_and_value; + hash_table->cache[key_and_value->hash & 31] = key_and_value; + hash_table->live_entries++; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_hash_entry_t ** +_cairo_hash_table_lookup_exact_key (cairo_hash_table_t *hash_table, + cairo_hash_entry_t *key) +{ + unsigned long table_size, i, idx, step; + cairo_hash_entry_t **entry; + + table_size = *hash_table->table_size; + idx = key->hash % table_size; + + entry = &hash_table->entries[idx]; + if (*entry == key) + return entry; + + i = 1; + step = 1 + key->hash % (table_size - 2); + do { + idx += step; + if (idx >= table_size) + idx -= table_size; + + entry = &hash_table->entries[idx]; + if (*entry == key) + return entry; + } while (++i < table_size); + + ASSERT_NOT_REACHED; + return NULL; +} +/** + * _cairo_hash_table_remove: + * @hash_table: a hash table + * @key: key of entry to be removed + * + * Remove an entry from the hash table which points to @key. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful or + * %CAIRO_STATUS_NO_MEMORY if out of memory. + **/ +void +_cairo_hash_table_remove (cairo_hash_table_t *hash_table, + cairo_hash_entry_t *key) +{ + *_cairo_hash_table_lookup_exact_key (hash_table, key) = DEAD_ENTRY; + hash_table->live_entries--; + hash_table->cache[key->hash & 31] = NULL; + + /* Check for table resize. Don't do this when iterating as this will + * reorder elements of the table and cause the iteration to potentially + * skip some elements. */ + if (hash_table->iterating == 0) { + /* This call _can_ fail, but only in failing to allocate new + * memory to shrink the hash table. It does leave the table in a + * consistent state, and we've already succeeded in removing the + * entry, so we don't examine the failure status of this call. */ + _cairo_hash_table_manage (hash_table); + } +} + +/** + * _cairo_hash_table_foreach: + * @hash_table: a hash table + * @hash_callback: function to be called for each live entry + * @closure: additional argument to be passed to @hash_callback + * + * Call @hash_callback for each live entry in the hash table, in a + * non-specified order. + * + * Entries in @hash_table may be removed by code executed from @hash_callback. + * + * Entries may not be inserted to @hash_table, nor may @hash_table + * be destroyed by code executed from @hash_callback. The relevant + * functions will halt in these cases. + **/ +void +_cairo_hash_table_foreach (cairo_hash_table_t *hash_table, + cairo_hash_callback_func_t hash_callback, + void *closure) +{ + unsigned long i; + cairo_hash_entry_t *entry; + + /* Mark the table for iteration */ + ++hash_table->iterating; + for (i = 0; i < *hash_table->table_size; i++) { + entry = hash_table->entries[i]; + if (ENTRY_IS_LIVE(entry)) + hash_callback (entry, closure); + } + /* If some elements were deleted during the iteration, + * the table may need resizing. Just do this every time + * as the check is inexpensive. + */ + if (--hash_table->iterating == 0) { + /* Should we fail to shrink the hash table, it is left unaltered, + * and we don't need to propagate the error status. */ + _cairo_hash_table_manage (hash_table); + } +} diff --git a/local/recipes/libs/cairo/source/src/cairo-hull.c b/local/recipes/libs/cairo/source/src/cairo-hull.c new file mode 100644 index 0000000000..c65593327f --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-hull.c @@ -0,0 +1,235 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2003 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" + +#include "cairo-error-private.h" +#include "cairo-slope-private.h" + +typedef struct cairo_hull { + cairo_point_t point; + cairo_slope_t slope; + int discard; + int id; +} cairo_hull_t; + +static void +_cairo_hull_init (cairo_hull_t *hull, + cairo_pen_vertex_t *vertices, + int num_vertices) +{ + cairo_point_t *p, *extremum, tmp; + int i; + + extremum = &vertices[0].point; + for (i = 1; i < num_vertices; i++) { + p = &vertices[i].point; + if (p->y < extremum->y || (p->y == extremum->y && p->x < extremum->x)) + extremum = p; + } + /* Put the extremal point at the beginning of the array */ + tmp = *extremum; + *extremum = vertices[0].point; + vertices[0].point = tmp; + + for (i = 0; i < num_vertices; i++) { + hull[i].point = vertices[i].point; + _cairo_slope_init (&hull[i].slope, &hull[0].point, &hull[i].point); + + /* give each point a unique id for later comparison */ + hull[i].id = i; + + /* Don't discard by default */ + hull[i].discard = 0; + + /* Discard all points coincident with the extremal point */ + if (i != 0 && hull[i].slope.dx == 0 && hull[i].slope.dy == 0) + hull[i].discard = 1; + } +} + +static inline cairo_int64_t +_slope_length (cairo_slope_t *slope) +{ + return _cairo_int64_add (_cairo_int32x32_64_mul (slope->dx, slope->dx), + _cairo_int32x32_64_mul (slope->dy, slope->dy)); +} + +static int +_cairo_hull_vertex_compare (const void *av, const void *bv) +{ + cairo_hull_t *a = (cairo_hull_t *) av; + cairo_hull_t *b = (cairo_hull_t *) bv; + int ret; + + /* Some libraries are reported to actually compare identical + * pointers and require the result to be 0. This is the crazy world we + * have to live in. + */ + if (a == b) + return 0; + + ret = _cairo_slope_compare (&a->slope, &b->slope); + + /* + * In the case of two vertices with identical slope from the + * extremal point discard the nearer point. + */ + if (ret == 0) { + int cmp; + + cmp = _cairo_int64_cmp (_slope_length (&a->slope), + _slope_length (&b->slope)); + + /* + * Use the points' ids to ensure a well-defined ordering, + * and avoid setting discard on both points. + */ + if (cmp < 0 || (cmp == 0 && a->id < b->id)) { + a->discard = 1; + ret = -1; + } else { + b->discard = 1; + ret = 1; + } + } + + return ret; +} + +static int +_cairo_hull_prev_valid (cairo_hull_t *hull, int num_hull, int index) +{ + /* hull[0] is always valid, and we never need to wraparound, (if + * we are passed an index of 0 here, then the calling loop is just + * about to terminate). */ + if (index == 0) + return 0; + + do { + index--; + } while (hull[index].discard); + + return index; +} + +static int +_cairo_hull_next_valid (cairo_hull_t *hull, int num_hull, int index) +{ + do { + index = (index + 1) % num_hull; + } while (hull[index].discard); + + return index; +} + +static void +_cairo_hull_eliminate_concave (cairo_hull_t *hull, int num_hull) +{ + int i, j, k; + cairo_slope_t slope_ij, slope_jk; + + i = 0; + j = _cairo_hull_next_valid (hull, num_hull, i); + k = _cairo_hull_next_valid (hull, num_hull, j); + + do { + _cairo_slope_init (&slope_ij, &hull[i].point, &hull[j].point); + _cairo_slope_init (&slope_jk, &hull[j].point, &hull[k].point); + + /* Is the angle formed by ij and jk concave? */ + if (_cairo_slope_compare (&slope_ij, &slope_jk) >= 0) { + if (i == k) + return; + hull[j].discard = 1; + j = i; + i = _cairo_hull_prev_valid (hull, num_hull, j); + } else { + i = j; + j = k; + k = _cairo_hull_next_valid (hull, num_hull, j); + } + } while (j != 0); +} + +static void +_cairo_hull_to_pen (cairo_hull_t *hull, cairo_pen_vertex_t *vertices, int *num_vertices) +{ + int i, j = 0; + + for (i = 0; i < *num_vertices; i++) { + if (hull[i].discard) + continue; + vertices[j++].point = hull[i].point; + } + + *num_vertices = j; +} + +/* Given a set of vertices, compute the convex hull using the Graham + scan algorithm. */ +cairo_status_t +_cairo_hull_compute (cairo_pen_vertex_t *vertices, int *num_vertices) +{ + cairo_hull_t hull_stack[CAIRO_STACK_ARRAY_LENGTH (cairo_hull_t)]; + cairo_hull_t *hull; + int num_hull = *num_vertices; + + if (CAIRO_INJECT_FAULT ()) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (num_hull > ARRAY_LENGTH (hull_stack)) { + hull = _cairo_malloc_ab (num_hull, sizeof (cairo_hull_t)); + if (unlikely (hull == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } else { + hull = hull_stack; + } + + _cairo_hull_init (hull, vertices, num_hull); + + qsort (hull + 1, num_hull - 1, + sizeof (cairo_hull_t), _cairo_hull_vertex_compare); + + _cairo_hull_eliminate_concave (hull, num_hull); + + _cairo_hull_to_pen (hull, vertices, num_vertices); + + if (hull != hull_stack) + free (hull); + + return CAIRO_STATUS_SUCCESS; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-image-compositor.c b/local/recipes/libs/cairo/source/src/cairo-image-compositor.c new file mode 100644 index 0000000000..8a3b2629f9 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-image-compositor.c @@ -0,0 +1,3177 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2003 University of Southern California + * Copyright © 2009,2010,2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +/* The primarily reason for keeping a traps-compositor around is + * for validating cairo-xlib (which currently also uses traps). + */ + +#include "cairoint.h" + +#include "cairo-image-surface-private.h" + +#include "cairo-compositor-private.h" +#include "cairo-spans-compositor-private.h" + +#include "cairo-region-private.h" +#include "cairo-traps-private.h" +#include "cairo-tristrip-private.h" + +#include "cairo-pixman-private.h" + +static pixman_image_t * +to_pixman_image (cairo_surface_t *s) +{ + return ((cairo_image_surface_t *)s)->pixman_image; +} + +static cairo_int_status_t +acquire (void *abstract_dst) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +release (void *abstract_dst) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +set_clip_region (void *_surface, + cairo_region_t *region) +{ + cairo_image_surface_t *surface = _surface; + pixman_region32_t *rgn = region ? ®ion->rgn : NULL; + + if (! pixman_image_set_clip_region32 (surface->pixman_image, rgn)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +draw_image_boxes (void *_dst, + cairo_image_surface_t *image, + cairo_boxes_t *boxes, + int dx, int dy) +{ + cairo_image_surface_t *dst = _dst; + struct _cairo_boxes_chunk *chunk; + int i; + + TRACE ((stderr, "%s x %d\n", __FUNCTION__, boxes->num_boxes)); + + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + cairo_box_t *b = &chunk->base[i]; + int x = _cairo_fixed_integer_part (b->p1.x); + int y = _cairo_fixed_integer_part (b->p1.y); + int w = _cairo_fixed_integer_part (b->p2.x) - x; + int h = _cairo_fixed_integer_part (b->p2.y) - y; + if (dst->pixman_format != image->pixman_format || + ! pixman_blt ((uint32_t *)image->data, (uint32_t *)dst->data, + image->stride / sizeof (uint32_t), + dst->stride / sizeof (uint32_t), + PIXMAN_FORMAT_BPP (image->pixman_format), + PIXMAN_FORMAT_BPP (dst->pixman_format), + x + dx, y + dy, + x, y, + w, h)) + { + pixman_image_composite32 (PIXMAN_OP_SRC, + image->pixman_image, NULL, dst->pixman_image, + x + dx, y + dy, + 0, 0, + x, y, + w, h); + } + } + } + return CAIRO_STATUS_SUCCESS; +} + +static inline uint32_t +color_to_uint32 (const cairo_color_t *color) +{ + return + ((uint32_t)color->alpha_short >> 8 << 24) | + (color->red_short >> 8 << 16) | + (color->green_short & 0xff00) | + (color->blue_short >> 8); +} + +static inline cairo_bool_t +color_to_pixel (const cairo_color_t *color, + pixman_format_code_t format, + uint32_t *pixel) +{ + uint32_t c; + + if (!(format == PIXMAN_a8r8g8b8 || + format == PIXMAN_x8r8g8b8 || + format == PIXMAN_a8b8g8r8 || + format == PIXMAN_x8b8g8r8 || + format == PIXMAN_b8g8r8a8 || + format == PIXMAN_b8g8r8x8 || + format == PIXMAN_r5g6b5 || + format == PIXMAN_b5g6r5 || + format == PIXMAN_a8)) + { + return FALSE; + } + + c = color_to_uint32 (color); + + if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_ABGR) { + c = ((c & 0xff000000) >> 0) | + ((c & 0x00ff0000) >> 16) | + ((c & 0x0000ff00) >> 0) | + ((c & 0x000000ff) << 16); + } + + if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_BGRA) { + c = ((c & 0xff000000) >> 24) | + ((c & 0x00ff0000) >> 8) | + ((c & 0x0000ff00) << 8) | + ((c & 0x000000ff) << 24); + } + + if (format == PIXMAN_a8) { + c = c >> 24; + } else if (format == PIXMAN_r5g6b5 || format == PIXMAN_b5g6r5) { + c = ((((c) >> 3) & 0x001f) | + (((c) >> 5) & 0x07e0) | + (((c) >> 8) & 0xf800)); + } + + *pixel = c; + return TRUE; +} + +static pixman_op_t +_pixman_operator (cairo_operator_t op) +{ + switch ((int) op) { + case CAIRO_OPERATOR_CLEAR: + return PIXMAN_OP_CLEAR; + + case CAIRO_OPERATOR_SOURCE: + return PIXMAN_OP_SRC; + case CAIRO_OPERATOR_OVER: + return PIXMAN_OP_OVER; + case CAIRO_OPERATOR_IN: + return PIXMAN_OP_IN; + case CAIRO_OPERATOR_OUT: + return PIXMAN_OP_OUT; + case CAIRO_OPERATOR_ATOP: + return PIXMAN_OP_ATOP; + + case CAIRO_OPERATOR_DEST: + return PIXMAN_OP_DST; + case CAIRO_OPERATOR_DEST_OVER: + return PIXMAN_OP_OVER_REVERSE; + case CAIRO_OPERATOR_DEST_IN: + return PIXMAN_OP_IN_REVERSE; + case CAIRO_OPERATOR_DEST_OUT: + return PIXMAN_OP_OUT_REVERSE; + case CAIRO_OPERATOR_DEST_ATOP: + return PIXMAN_OP_ATOP_REVERSE; + + case CAIRO_OPERATOR_XOR: + return PIXMAN_OP_XOR; + case CAIRO_OPERATOR_ADD: + return PIXMAN_OP_ADD; + case CAIRO_OPERATOR_SATURATE: + return PIXMAN_OP_SATURATE; + + case CAIRO_OPERATOR_MULTIPLY: + return PIXMAN_OP_MULTIPLY; + case CAIRO_OPERATOR_SCREEN: + return PIXMAN_OP_SCREEN; + case CAIRO_OPERATOR_OVERLAY: + return PIXMAN_OP_OVERLAY; + case CAIRO_OPERATOR_DARKEN: + return PIXMAN_OP_DARKEN; + case CAIRO_OPERATOR_LIGHTEN: + return PIXMAN_OP_LIGHTEN; + case CAIRO_OPERATOR_COLOR_DODGE: + return PIXMAN_OP_COLOR_DODGE; + case CAIRO_OPERATOR_COLOR_BURN: + return PIXMAN_OP_COLOR_BURN; + case CAIRO_OPERATOR_HARD_LIGHT: + return PIXMAN_OP_HARD_LIGHT; + case CAIRO_OPERATOR_SOFT_LIGHT: + return PIXMAN_OP_SOFT_LIGHT; + case CAIRO_OPERATOR_DIFFERENCE: + return PIXMAN_OP_DIFFERENCE; + case CAIRO_OPERATOR_EXCLUSION: + return PIXMAN_OP_EXCLUSION; + case CAIRO_OPERATOR_HSL_HUE: + return PIXMAN_OP_HSL_HUE; + case CAIRO_OPERATOR_HSL_SATURATION: + return PIXMAN_OP_HSL_SATURATION; + case CAIRO_OPERATOR_HSL_COLOR: + return PIXMAN_OP_HSL_COLOR; + case CAIRO_OPERATOR_HSL_LUMINOSITY: + return PIXMAN_OP_HSL_LUMINOSITY; + + default: + ASSERT_NOT_REACHED; + return PIXMAN_OP_OVER; + } +} + +static cairo_bool_t +__fill_reduces_to_source (cairo_operator_t op, + const cairo_color_t *color, + const cairo_image_surface_t *dst) +{ + if (op == CAIRO_OPERATOR_SOURCE || op == CAIRO_OPERATOR_CLEAR) + return TRUE; + if (op == CAIRO_OPERATOR_OVER && CAIRO_COLOR_IS_OPAQUE (color)) + return TRUE; + if (dst->base.is_clear) + return op == CAIRO_OPERATOR_OVER || op == CAIRO_OPERATOR_ADD; + + return FALSE; +} + +static cairo_bool_t +fill_reduces_to_source (cairo_operator_t op, + const cairo_color_t *color, + const cairo_image_surface_t *dst, + uint32_t *pixel) +{ + if (__fill_reduces_to_source (op, color, dst)) { + return color_to_pixel (color, dst->pixman_format, pixel); + } + + return FALSE; +} + +static cairo_int_status_t +fill_rectangles (void *_dst, + cairo_operator_t op, + const cairo_color_t *color, + cairo_rectangle_int_t *rects, + int num_rects) +{ + cairo_image_surface_t *dst = _dst; + uint32_t pixel; + int i; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (fill_reduces_to_source (op, color, dst, &pixel)) { + for (i = 0; i < num_rects; i++) { + pixman_fill ((uint32_t *) dst->data, dst->stride / sizeof (uint32_t), + PIXMAN_FORMAT_BPP (dst->pixman_format), + rects[i].x, rects[i].y, + rects[i].width, rects[i].height, + pixel); + } + } else { + pixman_image_t *src = _pixman_image_for_color (color); + if (unlikely (src == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + op = _pixman_operator (op); + for (i = 0; i < num_rects; i++) { + pixman_image_composite32 (op, + src, NULL, dst->pixman_image, + 0, 0, + 0, 0, + rects[i].x, rects[i].y, + rects[i].width, rects[i].height); + } + + pixman_image_unref (src); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +fill_boxes (void *_dst, + cairo_operator_t op, + const cairo_color_t *color, + cairo_boxes_t *boxes) +{ + cairo_image_surface_t *dst = _dst; + struct _cairo_boxes_chunk *chunk; + uint32_t pixel; + int i; + + TRACE ((stderr, "%s x %d\n", __FUNCTION__, boxes->num_boxes)); + + if (fill_reduces_to_source (op, color, dst, &pixel)) { + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + int x = _cairo_fixed_integer_part (chunk->base[i].p1.x); + int y = _cairo_fixed_integer_part (chunk->base[i].p1.y); + int w = _cairo_fixed_integer_part (chunk->base[i].p2.x) - x; + int h = _cairo_fixed_integer_part (chunk->base[i].p2.y) - y; + pixman_fill ((uint32_t *) dst->data, + dst->stride / sizeof (uint32_t), + PIXMAN_FORMAT_BPP (dst->pixman_format), + x, y, w, h, pixel); + } + } + } + else + { + pixman_image_t *src = _pixman_image_for_color (color); + if (unlikely (src == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + op = _pixman_operator (op); + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + int x1 = _cairo_fixed_integer_part (chunk->base[i].p1.x); + int y1 = _cairo_fixed_integer_part (chunk->base[i].p1.y); + int x2 = _cairo_fixed_integer_part (chunk->base[i].p2.x); + int y2 = _cairo_fixed_integer_part (chunk->base[i].p2.y); + pixman_image_composite32 (op, + src, NULL, dst->pixman_image, + 0, 0, + 0, 0, + x1, y1, + x2-x1, y2-y1); + } + } + + pixman_image_unref (src); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +composite (void *_dst, + cairo_operator_t op, + cairo_surface_t *abstract_src, + cairo_surface_t *abstract_mask, + int src_x, + int src_y, + int mask_x, + int mask_y, + int dst_x, + int dst_y, + unsigned int width, + unsigned int height) +{ + cairo_image_source_t *src = (cairo_image_source_t *)abstract_src; + cairo_image_source_t *mask = (cairo_image_source_t *)abstract_mask; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (mask) { + pixman_image_composite32 (_pixman_operator (op), + src->pixman_image, mask->pixman_image, to_pixman_image (_dst), + src_x, src_y, + mask_x, mask_y, + dst_x, dst_y, + width, height); + } else { + pixman_image_composite32 (_pixman_operator (op), + src->pixman_image, NULL, to_pixman_image (_dst), + src_x, src_y, + 0, 0, + dst_x, dst_y, + width, height); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +lerp (void *_dst, + cairo_surface_t *abstract_src, + cairo_surface_t *abstract_mask, + int src_x, + int src_y, + int mask_x, + int mask_y, + int dst_x, + int dst_y, + unsigned int width, + unsigned int height) +{ + cairo_image_surface_t *dst = _dst; + cairo_image_source_t *src = (cairo_image_source_t *)abstract_src; + cairo_image_source_t *mask = (cairo_image_source_t *)abstract_mask; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + +#if PIXMAN_HAS_OP_LERP + pixman_image_composite32 (PIXMAN_OP_LERP_SRC, + src->pixman_image, mask->pixman_image, dst->pixman_image, + src_x, src_y, + mask_x, mask_y, + dst_x, dst_y, + width, height); +#else + /* Punch the clip out of the destination */ + TRACE ((stderr, "%s - OUT_REVERSE (mask=%d/%p, dst=%d/%p)\n", + __FUNCTION__, + mask->base.unique_id, mask->pixman_image, + dst->base.unique_id, dst->pixman_image)); + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + mask->pixman_image, NULL, dst->pixman_image, + mask_x, mask_y, + 0, 0, + dst_x, dst_y, + width, height); + + /* Now add the two results together */ + TRACE ((stderr, "%s - ADD (src=%d/%p, mask=%d/%p, dst=%d/%p)\n", + __FUNCTION__, + src->base.unique_id, src->pixman_image, + mask->base.unique_id, mask->pixman_image, + dst->base.unique_id, dst->pixman_image)); + pixman_image_composite32 (PIXMAN_OP_ADD, + src->pixman_image, mask->pixman_image, dst->pixman_image, + src_x, src_y, + mask_x, mask_y, + dst_x, dst_y, + width, height); +#endif + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +composite_boxes (void *_dst, + cairo_operator_t op, + cairo_surface_t *abstract_src, + cairo_surface_t *abstract_mask, + int src_x, + int src_y, + int mask_x, + int mask_y, + int dst_x, + int dst_y, + cairo_boxes_t *boxes, + const cairo_rectangle_int_t *extents) +{ + pixman_image_t *dst = to_pixman_image (_dst); + pixman_image_t *src = ((cairo_image_source_t *)abstract_src)->pixman_image; + pixman_image_t *mask = abstract_mask ? ((cairo_image_source_t *)abstract_mask)->pixman_image : NULL; + pixman_image_t *free_src = NULL; + struct _cairo_boxes_chunk *chunk; + int i; + + /* XXX consider using a region? saves multiple prepare-composite */ + TRACE ((stderr, "%s x %d\n", __FUNCTION__, boxes->num_boxes)); + + if (((cairo_surface_t *)_dst)->is_clear && + (op == CAIRO_OPERATOR_SOURCE || + op == CAIRO_OPERATOR_OVER || + op == CAIRO_OPERATOR_ADD)) { + op = PIXMAN_OP_SRC; + } else if (mask) { + if (op == CAIRO_OPERATOR_CLEAR) { +#if PIXMAN_HAS_OP_LERP + op = PIXMAN_OP_LERP_CLEAR; +#else + free_src = src = _pixman_image_for_color (CAIRO_COLOR_WHITE); + if (unlikely (src == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + op = PIXMAN_OP_OUT_REVERSE; +#endif + } else if (op == CAIRO_OPERATOR_SOURCE) { +#if PIXMAN_HAS_OP_LERP + op = PIXMAN_OP_LERP_SRC; +#else + return CAIRO_INT_STATUS_UNSUPPORTED; +#endif + } else { + op = _pixman_operator (op); + } + } else { + op = _pixman_operator (op); + } + + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + int x1 = _cairo_fixed_integer_part (chunk->base[i].p1.x); + int y1 = _cairo_fixed_integer_part (chunk->base[i].p1.y); + int x2 = _cairo_fixed_integer_part (chunk->base[i].p2.x); + int y2 = _cairo_fixed_integer_part (chunk->base[i].p2.y); + + pixman_image_composite32 (op, src, mask, dst, + x1 + src_x, y1 + src_y, + x1 + mask_x, y1 + mask_y, + x1 + dst_x, y1 + dst_y, + x2 - x1, y2 - y1); + } + } + + if (free_src) + pixman_image_unref (free_src); + + return CAIRO_STATUS_SUCCESS; +} + +#define CAIRO_FIXED_16_16_MIN _cairo_fixed_from_int (-32768) +#define CAIRO_FIXED_16_16_MAX _cairo_fixed_from_int (32767) + +static cairo_bool_t +line_exceeds_16_16 (const cairo_line_t *line) +{ + return + line->p1.x <= CAIRO_FIXED_16_16_MIN || + line->p1.x >= CAIRO_FIXED_16_16_MAX || + + line->p2.x <= CAIRO_FIXED_16_16_MIN || + line->p2.x >= CAIRO_FIXED_16_16_MAX || + + line->p1.y <= CAIRO_FIXED_16_16_MIN || + line->p1.y >= CAIRO_FIXED_16_16_MAX || + + line->p2.y <= CAIRO_FIXED_16_16_MIN || + line->p2.y >= CAIRO_FIXED_16_16_MAX; +} + +static void +project_line_x_onto_16_16 (const cairo_line_t *line, + cairo_fixed_t top, + cairo_fixed_t bottom, + pixman_line_fixed_t *out) +{ + /* XXX use fixed-point arithmetic? */ + cairo_point_double_t p1, p2; + double m; + + p1.x = _cairo_fixed_to_double (line->p1.x); + p1.y = _cairo_fixed_to_double (line->p1.y); + + p2.x = _cairo_fixed_to_double (line->p2.x); + p2.y = _cairo_fixed_to_double (line->p2.y); + + m = (p2.x - p1.x) / (p2.y - p1.y); + out->p1.x = _cairo_fixed_16_16_from_double (p1.x + m * _cairo_fixed_to_double (top - line->p1.y)); + out->p2.x = _cairo_fixed_16_16_from_double (p1.x + m * _cairo_fixed_to_double (bottom - line->p1.y)); +} + +void +_pixman_image_add_traps (pixman_image_t *image, + int dst_x, int dst_y, + cairo_traps_t *traps) +{ + cairo_trapezoid_t *t = traps->traps; + int num_traps = traps->num_traps; + while (num_traps--) { + pixman_trapezoid_t trap; + + /* top/bottom will be clamped to surface bounds */ + trap.top = _cairo_fixed_to_16_16 (t->top); + trap.bottom = _cairo_fixed_to_16_16 (t->bottom); + + /* However, all the other coordinates will have been left untouched so + * as not to introduce numerical error. Recompute them if they + * exceed the 16.16 limits. + */ + if (unlikely (line_exceeds_16_16 (&t->left))) { + project_line_x_onto_16_16 (&t->left, t->top, t->bottom, &trap.left); + trap.left.p1.y = trap.top; + trap.left.p2.y = trap.bottom; + } else { + trap.left.p1.x = _cairo_fixed_to_16_16 (t->left.p1.x); + trap.left.p1.y = _cairo_fixed_to_16_16 (t->left.p1.y); + trap.left.p2.x = _cairo_fixed_to_16_16 (t->left.p2.x); + trap.left.p2.y = _cairo_fixed_to_16_16 (t->left.p2.y); + } + + if (unlikely (line_exceeds_16_16 (&t->right))) { + project_line_x_onto_16_16 (&t->right, t->top, t->bottom, &trap.right); + trap.right.p1.y = trap.top; + trap.right.p2.y = trap.bottom; + } else { + trap.right.p1.x = _cairo_fixed_to_16_16 (t->right.p1.x); + trap.right.p1.y = _cairo_fixed_to_16_16 (t->right.p1.y); + trap.right.p2.x = _cairo_fixed_to_16_16 (t->right.p2.x); + trap.right.p2.y = _cairo_fixed_to_16_16 (t->right.p2.y); + } + + pixman_rasterize_trapezoid (image, &trap, -dst_x, -dst_y); + t++; + } +} + +static cairo_int_status_t +composite_traps (void *_dst, + cairo_operator_t op, + cairo_surface_t *abstract_src, + int src_x, + int src_y, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_antialias_t antialias, + cairo_traps_t *traps) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *) _dst; + cairo_image_source_t *src = (cairo_image_source_t *) abstract_src; + cairo_int_status_t status; + pixman_image_t *mask; + pixman_format_code_t format; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + /* pixman doesn't eliminate self-intersecting trapezoids/edges */ + status = _cairo_bentley_ottmann_tessellate_traps (traps, + CAIRO_FILL_RULE_WINDING); + if (status != CAIRO_INT_STATUS_SUCCESS) + return status; + + /* Special case adding trapezoids onto a mask surface; we want to avoid + * creating an intermediate temporary mask unnecessarily. + * + * We make the assumption here that the portion of the trapezoids + * contained within the surface is bounded by [dst_x,dst_y,width,height]; + * the Cairo core code passes bounds based on the trapezoid extents. + */ + format = antialias == CAIRO_ANTIALIAS_NONE ? PIXMAN_a1 : PIXMAN_a8; + if (dst->pixman_format == format && + (abstract_src == NULL || + (op == CAIRO_OPERATOR_ADD && src->is_opaque_solid))) + { + _pixman_image_add_traps (dst->pixman_image, dst_x, dst_y, traps); + return CAIRO_STATUS_SUCCESS; + } + + mask = pixman_image_create_bits (format, + extents->width, extents->height, + NULL, 0); + if (unlikely (mask == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _pixman_image_add_traps (mask, extents->x, extents->y, traps); + pixman_image_composite32 (_pixman_operator (op), + src->pixman_image, mask, dst->pixman_image, + extents->x + src_x, extents->y + src_y, + 0, 0, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + + pixman_image_unref (mask); + + return CAIRO_STATUS_SUCCESS; +} + +static void +set_point (pixman_point_fixed_t *p, cairo_point_t *c) +{ + p->x = _cairo_fixed_to_16_16 (c->x); + p->y = _cairo_fixed_to_16_16 (c->y); +} + +void +_pixman_image_add_tristrip (pixman_image_t *image, + int dst_x, int dst_y, + cairo_tristrip_t *strip) +{ + pixman_triangle_t tri; + pixman_point_fixed_t *p[3] = {&tri.p1, &tri.p2, &tri.p3 }; + int n; + + set_point (p[0], &strip->points[0]); + set_point (p[1], &strip->points[1]); + set_point (p[2], &strip->points[2]); + pixman_add_triangles (image, -dst_x, -dst_y, 1, &tri); + for (n = 3; n < strip->num_points; n++) { + set_point (p[n%3], &strip->points[n]); + pixman_add_triangles (image, -dst_x, -dst_y, 1, &tri); + } +} + +static cairo_int_status_t +composite_tristrip (void *_dst, + cairo_operator_t op, + cairo_surface_t *abstract_src, + int src_x, + int src_y, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_antialias_t antialias, + cairo_tristrip_t *strip) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *) _dst; + cairo_image_source_t *src = (cairo_image_source_t *) abstract_src; + pixman_image_t *mask; + pixman_format_code_t format; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (strip->num_points < 3) + return CAIRO_STATUS_SUCCESS; + + if (1) { /* pixman doesn't eliminate self-intersecting triangles/edges */ + cairo_int_status_t status; + cairo_traps_t traps; + int n; + + _cairo_traps_init (&traps); + for (n = 0; n < strip->num_points; n++) { + cairo_point_t p[4]; + + p[0] = strip->points[0]; + p[1] = strip->points[1]; + p[2] = strip->points[2]; + p[3] = strip->points[0]; + + _cairo_traps_tessellate_convex_quad (&traps, p); + } + status = composite_traps (_dst, op, abstract_src, + src_x, src_y, + dst_x, dst_y, + extents, antialias, &traps); + _cairo_traps_fini (&traps); + + return status; + } + + format = antialias == CAIRO_ANTIALIAS_NONE ? PIXMAN_a1 : PIXMAN_a8; + if (dst->pixman_format == format && + (abstract_src == NULL || + (op == CAIRO_OPERATOR_ADD && src->is_opaque_solid))) + { + _pixman_image_add_tristrip (dst->pixman_image, dst_x, dst_y, strip); + return CAIRO_STATUS_SUCCESS; + } + + mask = pixman_image_create_bits (format, + extents->width, extents->height, + NULL, 0); + if (unlikely (mask == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _pixman_image_add_tristrip (mask, extents->x, extents->y, strip); + pixman_image_composite32 (_pixman_operator (op), + src->pixman_image, mask, dst->pixman_image, + extents->x + src_x, extents->y + src_y, + 0, 0, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + + pixman_image_unref (mask); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +check_composite_glyphs (const cairo_composite_rectangles_t *extents, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int *num_glyphs) +{ + return CAIRO_STATUS_SUCCESS; +} + +#if HAS_PIXMAN_GLYPHS +static pixman_glyph_cache_t *global_glyph_cache; + +static inline pixman_glyph_cache_t * +get_glyph_cache (void) +{ + if (!global_glyph_cache) + global_glyph_cache = pixman_glyph_cache_create (); + + return global_glyph_cache; +} + +void +_cairo_image_compositor_reset_static_data (void) +{ + CAIRO_MUTEX_LOCK (_cairo_glyph_cache_mutex); + + if (global_glyph_cache) + pixman_glyph_cache_destroy (global_glyph_cache); + global_glyph_cache = NULL; + + CAIRO_MUTEX_UNLOCK (_cairo_glyph_cache_mutex); +} + +void +_cairo_image_scaled_glyph_fini (cairo_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph) +{ + CAIRO_MUTEX_LOCK (_cairo_glyph_cache_mutex); + + if (global_glyph_cache) { + pixman_glyph_cache_remove ( + global_glyph_cache, scaled_font, + (void *)scaled_glyph->hash_entry.hash); + } + + CAIRO_MUTEX_UNLOCK (_cairo_glyph_cache_mutex); +} + +#define PHASE(x) ((int)(floor (4 * (x + 0.125)) - 4 * floor (x + 0.125))) +#define POSITION(x) ((int) floor (x + 0.125)) + +static cairo_int_status_t +composite_glyphs (void *_dst, + cairo_operator_t op, + cairo_surface_t *_src, + int src_x, + int src_y, + int dst_x, + int dst_y, + cairo_composite_glyphs_info_t *info) +{ + cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS; + pixman_glyph_cache_t *glyph_cache; + pixman_glyph_t pglyphs_stack[CAIRO_STACK_ARRAY_LENGTH (pixman_glyph_t)]; + pixman_glyph_t *pglyphs = pglyphs_stack; + pixman_glyph_t *pg; + int i; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + CAIRO_MUTEX_LOCK (_cairo_glyph_cache_mutex); + + glyph_cache = get_glyph_cache(); + if (unlikely (glyph_cache == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto out_unlock; + } + + pixman_glyph_cache_freeze (glyph_cache); + + if (info->num_glyphs > ARRAY_LENGTH (pglyphs_stack)) { + pglyphs = _cairo_malloc_ab (info->num_glyphs, sizeof (pixman_glyph_t)); + if (unlikely (pglyphs == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto out_thaw; + } + } + + pg = pglyphs; + for (i = 0; i < info->num_glyphs; i++) { + unsigned long index = info->glyphs[i].index; + const void *glyph; + unsigned long xphase, yphase; + + xphase = PHASE(info->glyphs[i].x); + yphase = PHASE(info->glyphs[i].y); + + index = index | (xphase << 24) | (yphase << 26); + + glyph = pixman_glyph_cache_lookup (glyph_cache, info->font, (void *)(uintptr_t)index); + if (!glyph) { + cairo_scaled_glyph_t *scaled_glyph; + cairo_image_surface_t *glyph_surface; + + /* This call can actually end up recursing, so we have to + * drop the mutex around it. + */ + CAIRO_MUTEX_UNLOCK (_cairo_glyph_cache_mutex); + status = _cairo_scaled_glyph_lookup (info->font, index, + CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + CAIRO_MUTEX_LOCK (_cairo_glyph_cache_mutex); + + if (unlikely (status)) + goto out_thaw; + + glyph_surface = scaled_glyph->surface; + glyph = pixman_glyph_cache_insert (glyph_cache, info->font, (void *)(uintptr_t)index, + glyph_surface->base.device_transform.x0, + glyph_surface->base.device_transform.y0, + glyph_surface->pixman_image); + if (unlikely (!glyph)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto out_thaw; + } + } + + pg->x = POSITION (info->glyphs[i].x); + pg->y = POSITION (info->glyphs[i].y); + pg->glyph = glyph; + pg++; + } + + if (info->use_mask) { + pixman_format_code_t mask_format; + + mask_format = pixman_glyph_get_mask_format (glyph_cache, pg - pglyphs, pglyphs); + + pixman_composite_glyphs (_pixman_operator (op), + ((cairo_image_source_t *)_src)->pixman_image, + to_pixman_image (_dst), + mask_format, + info->extents.x + src_x, info->extents.y + src_y, + info->extents.x, info->extents.y, + info->extents.x - dst_x, info->extents.y - dst_y, + info->extents.width, info->extents.height, + glyph_cache, pg - pglyphs, pglyphs); + } else { + pixman_composite_glyphs_no_mask (_pixman_operator (op), + ((cairo_image_source_t *)_src)->pixman_image, + to_pixman_image (_dst), + src_x, src_y, + - dst_x, - dst_y, + glyph_cache, pg - pglyphs, pglyphs); + } + +out_thaw: + pixman_glyph_cache_thaw (glyph_cache); + + if (pglyphs != pglyphs_stack) + free(pglyphs); + +out_unlock: + CAIRO_MUTEX_UNLOCK (_cairo_glyph_cache_mutex); + return status; +} +#else +void +_cairo_image_compositor_reset_static_data (void) +{ +} + +void +_cairo_image_scaled_glyph_fini (cairo_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph) +{ +} + +static cairo_int_status_t +composite_one_glyph (void *_dst, + cairo_operator_t op, + cairo_surface_t *_src, + int src_x, + int src_y, + int dst_x, + int dst_y, + cairo_composite_glyphs_info_t *info) +{ + cairo_image_surface_t *glyph_surface; + cairo_scaled_glyph_t *scaled_glyph; + cairo_status_t status; + int x, y; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + status = _cairo_scaled_glyph_lookup (info->font, + info->glyphs[0].index, + CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + + if (unlikely (status)) + return status; + + glyph_surface = scaled_glyph->surface; + if (glyph_surface->width == 0 || glyph_surface->height == 0) + return CAIRO_INT_STATUS_NOTHING_TO_DO; + + /* round glyph locations to the nearest pixel */ + /* XXX: FRAGILE: We're ignoring device_transform scaling here. A bug? */ + x = _cairo_lround (info->glyphs[0].x - + glyph_surface->base.device_transform.x0); + y = _cairo_lround (info->glyphs[0].y - + glyph_surface->base.device_transform.y0); + + pixman_image_composite32 (_pixman_operator (op), + ((cairo_image_source_t *)_src)->pixman_image, + glyph_surface->pixman_image, + to_pixman_image (_dst), + x + src_x, y + src_y, + 0, 0, + x - dst_x, y - dst_y, + glyph_surface->width, + glyph_surface->height); + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +composite_glyphs_via_mask (void *_dst, + cairo_operator_t op, + cairo_surface_t *_src, + int src_x, + int src_y, + int dst_x, + int dst_y, + cairo_composite_glyphs_info_t *info) +{ + cairo_scaled_glyph_t *glyph_cache[64]; + pixman_image_t *white = _pixman_image_for_color (CAIRO_COLOR_WHITE); + cairo_scaled_glyph_t *scaled_glyph; + uint8_t buf[2048]; + pixman_image_t *mask; + pixman_format_code_t format; + cairo_status_t status; + int i; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (unlikely (white == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + /* XXX convert the glyphs to common formats a8/a8r8g8b8 to hit + * optimised paths through pixman. Should we increase the bit + * depth of the target surface, we should reconsider the appropriate + * mask formats. + */ + + status = _cairo_scaled_glyph_lookup (info->font, + info->glyphs[0].index, + CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + if (unlikely (status)) { + pixman_image_unref (white); + return status; + } + + memset (glyph_cache, 0, sizeof (glyph_cache)); + glyph_cache[info->glyphs[0].index % ARRAY_LENGTH (glyph_cache)] = scaled_glyph; + + format = PIXMAN_a8; + i = (info->extents.width + 3) & ~3; + if (scaled_glyph->surface->base.content & CAIRO_CONTENT_COLOR) { + format = PIXMAN_a8r8g8b8; + i = info->extents.width * 4; + } + + if (i * info->extents.height > (int) sizeof (buf)) { + mask = pixman_image_create_bits (format, + info->extents.width, + info->extents.height, + NULL, 0); + } else { + memset (buf, 0, i * info->extents.height); + mask = pixman_image_create_bits (format, + info->extents.width, + info->extents.height, + (uint32_t *)buf, i); + } + if (unlikely (mask == NULL)) { + pixman_image_unref (white); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + status = CAIRO_STATUS_SUCCESS; + for (i = 0; i < info->num_glyphs; i++) { + unsigned long glyph_index = info->glyphs[i].index; + int cache_index = glyph_index % ARRAY_LENGTH (glyph_cache); + cairo_image_surface_t *glyph_surface; + int x, y; + + scaled_glyph = glyph_cache[cache_index]; + if (scaled_glyph == NULL || + _cairo_scaled_glyph_index (scaled_glyph) != glyph_index) + { + status = _cairo_scaled_glyph_lookup (info->font, glyph_index, + CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + + if (unlikely (status)) { + pixman_image_unref (mask); + pixman_image_unref (white); + return status; + } + + glyph_cache[cache_index] = scaled_glyph; + } + + glyph_surface = scaled_glyph->surface; + if (glyph_surface->width && glyph_surface->height) { + if (glyph_surface->base.content & CAIRO_CONTENT_COLOR && + format == PIXMAN_a8) { + pixman_image_t *ca_mask; + + format = PIXMAN_a8r8g8b8; + ca_mask = pixman_image_create_bits (format, + info->extents.width, + info->extents.height, + NULL, 0); + if (unlikely (ca_mask == NULL)) { + pixman_image_unref (mask); + pixman_image_unref (white); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + pixman_image_composite32 (PIXMAN_OP_SRC, + white, mask, ca_mask, + 0, 0, + 0, 0, + 0, 0, + info->extents.width, + info->extents.height); + pixman_image_unref (mask); + mask = ca_mask; + } + + /* round glyph locations to the nearest pixel */ + /* XXX: FRAGILE: We're ignoring device_transform scaling here. A bug? */ + x = _cairo_lround (info->glyphs[i].x - + glyph_surface->base.device_transform.x0); + y = _cairo_lround (info->glyphs[i].y - + glyph_surface->base.device_transform.y0); + + if (glyph_surface->pixman_format == format) { + pixman_image_composite32 (PIXMAN_OP_ADD, + glyph_surface->pixman_image, NULL, mask, + 0, 0, + 0, 0, + x - info->extents.x, y - info->extents.y, + glyph_surface->width, + glyph_surface->height); + } else { + pixman_image_composite32 (PIXMAN_OP_ADD, + white, glyph_surface->pixman_image, mask, + 0, 0, + 0, 0, + x - info->extents.x, y - info->extents.y, + glyph_surface->width, + glyph_surface->height); + } + } + } + + if (format == PIXMAN_a8r8g8b8) + pixman_image_set_component_alpha (mask, TRUE); + + pixman_image_composite32 (_pixman_operator (op), + ((cairo_image_source_t *)_src)->pixman_image, + mask, + to_pixman_image (_dst), + info->extents.x + src_x, info->extents.y + src_y, + 0, 0, + info->extents.x - dst_x, info->extents.y - dst_y, + info->extents.width, info->extents.height); + pixman_image_unref (mask); + pixman_image_unref (white); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +composite_glyphs (void *_dst, + cairo_operator_t op, + cairo_surface_t *_src, + int src_x, + int src_y, + int dst_x, + int dst_y, + cairo_composite_glyphs_info_t *info) +{ + cairo_scaled_glyph_t *glyph_cache[64]; + pixman_image_t *dst, *src; + cairo_status_t status; + int i; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (info->num_glyphs == 1) + return composite_one_glyph(_dst, op, _src, src_x, src_y, dst_x, dst_y, info); + + if (info->use_mask) + return composite_glyphs_via_mask(_dst, op, _src, src_x, src_y, dst_x, dst_y, info); + + op = _pixman_operator (op); + dst = to_pixman_image (_dst); + src = ((cairo_image_source_t *)_src)->pixman_image; + + memset (glyph_cache, 0, sizeof (glyph_cache)); + status = CAIRO_STATUS_SUCCESS; + + for (i = 0; i < info->num_glyphs; i++) { + int x, y; + cairo_image_surface_t *glyph_surface; + cairo_scaled_glyph_t *scaled_glyph; + unsigned long glyph_index = info->glyphs[i].index; + int cache_index = glyph_index % ARRAY_LENGTH (glyph_cache); + + scaled_glyph = glyph_cache[cache_index]; + if (scaled_glyph == NULL || + _cairo_scaled_glyph_index (scaled_glyph) != glyph_index) + { + status = _cairo_scaled_glyph_lookup (info->font, glyph_index, + CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + + if (unlikely (status)) + break; + + glyph_cache[cache_index] = scaled_glyph; + } + + glyph_surface = scaled_glyph->surface; + if (glyph_surface->width && glyph_surface->height) { + /* round glyph locations to the nearest pixel */ + /* XXX: FRAGILE: We're ignoring device_transform scaling here. A bug? */ + x = _cairo_lround (info->glyphs[i].x - + glyph_surface->base.device_transform.x0); + y = _cairo_lround (info->glyphs[i].y - + glyph_surface->base.device_transform.y0); + + pixman_image_composite32 (op, src, glyph_surface->pixman_image, dst, + x + src_x, y + src_y, + 0, 0, + x - dst_x, y - dst_y, + glyph_surface->width, + glyph_surface->height); + } + } + + return status; +} +#endif + +static cairo_int_status_t +check_composite (const cairo_composite_rectangles_t *extents) +{ + return CAIRO_STATUS_SUCCESS; +} + +const cairo_compositor_t * +_cairo_image_traps_compositor_get (void) +{ + static cairo_atomic_once_t once = CAIRO_ATOMIC_ONCE_INIT; + static cairo_traps_compositor_t compositor; + + if (_cairo_atomic_init_once_enter(&once)) { + _cairo_traps_compositor_init(&compositor, + &__cairo_no_compositor); + compositor.acquire = acquire; + compositor.release = release; + compositor.set_clip_region = set_clip_region; + compositor.pattern_to_surface = _cairo_image_source_create_for_pattern; + compositor.draw_image_boxes = draw_image_boxes; + //compositor.copy_boxes = copy_boxes; + compositor.fill_boxes = fill_boxes; + compositor.check_composite = check_composite; + compositor.composite = composite; + compositor.lerp = lerp; + //compositor.check_composite_boxes = check_composite_boxes; + compositor.composite_boxes = composite_boxes; + //compositor.check_composite_traps = check_composite_traps; + compositor.composite_traps = composite_traps; + //compositor.check_composite_tristrip = check_composite_traps; + compositor.composite_tristrip = composite_tristrip; + compositor.check_composite_glyphs = check_composite_glyphs; + compositor.composite_glyphs = composite_glyphs; + + _cairo_atomic_init_once_leave(&once); + } + + return &compositor.base; +} + +const cairo_compositor_t * +_cairo_image_mask_compositor_get (void) +{ + static cairo_atomic_once_t once = CAIRO_ATOMIC_ONCE_INIT; + static cairo_mask_compositor_t compositor; + + if (_cairo_atomic_init_once_enter(&once)) { + _cairo_mask_compositor_init (&compositor, + _cairo_image_traps_compositor_get ()); + compositor.acquire = acquire; + compositor.release = release; + compositor.set_clip_region = set_clip_region; + compositor.pattern_to_surface = _cairo_image_source_create_for_pattern; + compositor.draw_image_boxes = draw_image_boxes; + compositor.fill_rectangles = fill_rectangles; + compositor.fill_boxes = fill_boxes; + compositor.check_composite = check_composite; + compositor.composite = composite; + //compositor.lerp = lerp; + //compositor.check_composite_boxes = check_composite_boxes; + compositor.composite_boxes = composite_boxes; + compositor.check_composite_glyphs = check_composite_glyphs; + compositor.composite_glyphs = composite_glyphs; + + _cairo_atomic_init_once_leave(&once); + } + + return &compositor.base; +} + +#if PIXMAN_HAS_COMPOSITOR +typedef struct _cairo_image_span_renderer { + cairo_span_renderer_t base; + + pixman_image_compositor_t *compositor; + pixman_image_t *src, *mask; + float opacity; + cairo_rectangle_int_t extents; +} cairo_image_span_renderer_t; +COMPILE_TIME_ASSERT (sizeof (cairo_image_span_renderer_t) <= sizeof (cairo_abstract_span_renderer_t)); + +static cairo_status_t +_cairo_image_bounded_opaque_spans (void *abstract_renderer, + int y, int height, + const cairo_half_open_span_t *spans, + unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + do { + if (spans[0].coverage) + pixman_image_compositor_blt (r->compositor, + spans[0].x, y, + spans[1].x - spans[0].x, height, + spans[0].coverage); + spans++; + } while (--num_spans > 1); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_image_bounded_spans (void *abstract_renderer, + int y, int height, + const cairo_half_open_span_t *spans, + unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + do { + if (spans[0].coverage) { + pixman_image_compositor_blt (r->compositor, + spans[0].x, y, + spans[1].x - spans[0].x, height, + r->opacity * spans[0].coverage); + } + spans++; + } while (--num_spans > 1); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_image_unbounded_spans (void *abstract_renderer, + int y, int height, + const cairo_half_open_span_t *spans, + unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + assert (y + height <= r->extents.height); + if (y > r->extents.y) { + pixman_image_compositor_blt (r->compositor, + r->extents.x, r->extents.y, + r->extents.width, y - r->extents.y, + 0); + } + + if (num_spans == 0) { + pixman_image_compositor_blt (r->compositor, + r->extents.x, y, + r->extents.width, height, + 0); + } else { + if (spans[0].x != r->extents.x) { + pixman_image_compositor_blt (r->compositor, + r->extents.x, y, + spans[0].x - r->extents.x, + height, + 0); + } + + do { + assert (spans[0].x < r->extents.x + r->extents.width); + pixman_image_compositor_blt (r->compositor, + spans[0].x, y, + spans[1].x - spans[0].x, height, + r->opacity * spans[0].coverage); + spans++; + } while (--num_spans > 1); + + if (spans[0].x != r->extents.x + r->extents.width) { + assert (spans[0].x < r->extents.x + r->extents.width); + pixman_image_compositor_blt (r->compositor, + spans[0].x, y, + r->extents.x + r->extents.width - spans[0].x, height, + 0); + } + } + + r->extents.y = y + height; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_image_clipped_spans (void *abstract_renderer, + int y, int height, + const cairo_half_open_span_t *spans, + unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + assert (num_spans); + + do { + if (! spans[0].inverse) + pixman_image_compositor_blt (r->compositor, + spans[0].x, y, + spans[1].x - spans[0].x, height, + r->opacity * spans[0].coverage); + spans++; + } while (--num_spans > 1); + + r->extents.y = y + height; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_image_finish_unbounded_spans (void *abstract_renderer) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (r->extents.y < r->extents.height) { + pixman_image_compositor_blt (r->compositor, + r->extents.x, r->extents.y, + r->extents.width, + r->extents.height - r->extents.y, + 0); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +span_renderer_init (cairo_abstract_span_renderer_t *_r, + const cairo_composite_rectangles_t *composite, + cairo_bool_t needs_clip) +{ + cairo_image_span_renderer_t *r = (cairo_image_span_renderer_t *)_r; + cairo_image_surface_t *dst = (cairo_image_surface_t *)composite->surface; + const cairo_pattern_t *source = &composite->source_pattern.base; + cairo_operator_t op = composite->op; + int src_x, src_y; + int mask_x, mask_y; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (op == CAIRO_OPERATOR_CLEAR) { + op = PIXMAN_OP_LERP_CLEAR; + } else if (dst->base.is_clear && + (op == CAIRO_OPERATOR_SOURCE || + op == CAIRO_OPERATOR_OVER || + op == CAIRO_OPERATOR_ADD)) { + op = PIXMAN_OP_SRC; + } else if (op == CAIRO_OPERATOR_SOURCE) { + op = PIXMAN_OP_LERP_SRC; + } else { + op = _pixman_operator (op); + } + + r->compositor = NULL; + r->mask = NULL; + r->src = _pixman_image_for_pattern (dst, source, FALSE, + &composite->unbounded, + &composite->source_sample_area, + &src_x, &src_y); + if (unlikely (r->src == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + r->opacity = 1.0; + if (composite->mask_pattern.base.type == CAIRO_PATTERN_TYPE_SOLID) { + r->opacity = composite->mask_pattern.solid.color.alpha; + } else { + r->mask = _pixman_image_for_pattern (dst, + &composite->mask_pattern.base, + TRUE, + &composite->unbounded, + &composite->mask_sample_area, + &mask_x, &mask_y); + if (unlikely (r->mask == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + /* XXX Component-alpha? */ + if ((dst->base.content & CAIRO_CONTENT_COLOR) == 0 && + _cairo_pattern_is_opaque (source, &composite->source_sample_area)) + { + pixman_image_unref (r->src); + r->src = r->mask; + src_x = mask_x; + src_y = mask_y; + r->mask = NULL; + } + } + + if (composite->is_bounded) { + if (r->opacity == 1.) + r->base.render_rows = _cairo_image_bounded_opaque_spans; + else + r->base.render_rows = _cairo_image_bounded_spans; + r->base.finish = NULL; + } else { + if (needs_clip) + r->base.render_rows = _cairo_image_clipped_spans; + else + r->base.render_rows = _cairo_image_unbounded_spans; + r->base.finish = _cairo_image_finish_unbounded_spans; + r->extents = composite->unbounded; + r->extents.height += r->extents.y; + } + + r->compositor = + pixman_image_create_compositor (op, r->src, r->mask, dst->pixman_image, + composite->unbounded.x + src_x, + composite->unbounded.y + src_y, + composite->unbounded.x + mask_x, + composite->unbounded.y + mask_y, + composite->unbounded.x, + composite->unbounded.y, + composite->unbounded.width, + composite->unbounded.height); + if (unlikely (r->compositor == NULL)) + return CAIRO_INT_STATUS_NOTHING_TO_DO; + + return CAIRO_STATUS_SUCCESS; +} + +static void +span_renderer_fini (cairo_abstract_span_renderer_t *_r, + cairo_int_status_t status) +{ + cairo_image_span_renderer_t *r = (cairo_image_span_renderer_t *) _r; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (status == CAIRO_INT_STATUS_SUCCESS && r->base.finish) + r->base.finish (r); + + if (r->compositor) + pixman_image_compositor_destroy (r->compositor); + + if (r->src) + pixman_image_unref (r->src); + if (r->mask) + pixman_image_unref (r->mask); +} +#else +typedef struct _cairo_image_span_renderer { + cairo_span_renderer_t base; + + const cairo_composite_rectangles_t *composite; + + float opacity; + uint8_t op; + int bpp; + + pixman_image_t *src, *mask; + union { + struct fill { + ptrdiff_t stride; + uint8_t *data; + uint32_t pixel; + } fill; + struct blit { + int stride; + uint8_t *data; + int src_stride; + uint8_t *src_data; + } blit; + struct composite { + pixman_image_t *dst; + int src_x, src_y; + int mask_x, mask_y; + int run_length; + } composite; + struct finish { + cairo_rectangle_int_t extents; + int src_x, src_y; + ptrdiff_t stride; + uint8_t *data; + } mask; + } u; + uint8_t _buf[0]; +#define SZ_BUF (int)(sizeof (cairo_abstract_span_renderer_t) - sizeof (cairo_image_span_renderer_t)) +} cairo_image_span_renderer_t; +COMPILE_TIME_ASSERT (sizeof (cairo_image_span_renderer_t) <= sizeof (cairo_abstract_span_renderer_t)); + +static cairo_status_t +_cairo_image_spans (void *abstract_renderer, + int y, int height, + const cairo_half_open_span_t *spans, + unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + uint8_t *mask, *row; + int len; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + mask = r->u.mask.data + (y - r->u.mask.extents.y) * r->u.mask.stride; + mask += spans[0].x - r->u.mask.extents.x; + row = mask; + + do { + len = spans[1].x - spans[0].x; + if (spans[0].coverage) { + *row++ = r->opacity * spans[0].coverage; + if (--len) + memset (row, row[-1], len); + } + row += len; + spans++; + } while (--num_spans > 1); + + len = row - mask; + row = mask; + while (--height) { + mask += r->u.mask.stride; + memcpy (mask, row, len); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_image_spans_and_zero (void *abstract_renderer, + int y, int height, + const cairo_half_open_span_t *spans, + unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + uint8_t *mask; + int len; + + mask = r->u.mask.data; + if (y > r->u.mask.extents.y) { + len = (y - r->u.mask.extents.y) * r->u.mask.stride; + memset (mask, 0, len); + mask += len; + } + + r->u.mask.extents.y = y + height; + r->u.mask.data = mask + height * r->u.mask.stride; + if (num_spans == 0) { + memset (mask, 0, height * r->u.mask.stride); + } else { + uint8_t *row = mask; + + if (spans[0].x != r->u.mask.extents.x) { + len = spans[0].x - r->u.mask.extents.x; + memset (row, 0, len); + row += len; + } + + do { + len = spans[1].x - spans[0].x; + *row++ = r->opacity * spans[0].coverage; + if (len > 1) { + memset (row, row[-1], --len); + row += len; + } + spans++; + } while (--num_spans > 1); + + if (spans[0].x != r->u.mask.extents.x + r->u.mask.extents.width) { + len = r->u.mask.extents.x + r->u.mask.extents.width - spans[0].x; + memset (row, 0, len); + } + + row = mask; + while (--height) { + mask += r->u.mask.stride; + memcpy (mask, row, r->u.mask.extents.width); + } + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_image_finish_spans_and_zero (void *abstract_renderer) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (r->u.mask.extents.y < r->u.mask.extents.height) + memset (r->u.mask.data, 0, (r->u.mask.extents.height - r->u.mask.extents.y) * r->u.mask.stride); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_fill8_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + if (likely(h == 1)) { + do { + if (spans[0].coverage) { + int len = spans[1].x - spans[0].x; + uint8_t *d = r->u.fill.data + r->u.fill.stride*y + spans[0].x; + if (len == 1) + *d = r->u.fill.pixel; + else + memset(d, r->u.fill.pixel, len); + } + spans++; + } while (--num_spans > 1); + } else { + do { + if (spans[0].coverage) { + int yy = y, hh = h; + do { + int len = spans[1].x - spans[0].x; + uint8_t *d = r->u.fill.data + r->u.fill.stride*yy + spans[0].x; + if (len == 1) + *d = r->u.fill.pixel; + else + memset(d, r->u.fill.pixel, len); + yy++; + } while (--hh); + } + spans++; + } while (--num_spans > 1); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_fill16_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + if (likely(h == 1)) { + do { + if (spans[0].coverage) { + int len = spans[1].x - spans[0].x; + uint16_t *d = (uint16_t*)(r->u.fill.data + r->u.fill.stride*y + spans[0].x*2); + while (len-- > 0) + *d++ = r->u.fill.pixel; + } + spans++; + } while (--num_spans > 1); + } else { + do { + if (spans[0].coverage) { + int yy = y, hh = h; + do { + int len = spans[1].x - spans[0].x; + uint16_t *d = (uint16_t*)(r->u.fill.data + r->u.fill.stride*yy + spans[0].x*2); + while (len-- > 0) + *d++ = r->u.fill.pixel; + yy++; + } while (--hh); + } + spans++; + } while (--num_spans > 1); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_fill32_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + if (likely(h == 1)) { + do { + if (spans[0].coverage) { + int len = spans[1].x - spans[0].x; + if (len > 32) { + pixman_fill ((uint32_t *)r->u.fill.data, r->u.fill.stride / sizeof(uint32_t), r->bpp, + spans[0].x, y, len, 1, r->u.fill.pixel); + } else { + uint32_t *d = (uint32_t*)(r->u.fill.data + r->u.fill.stride*y + spans[0].x*4); + while (len-- > 0) + *d++ = r->u.fill.pixel; + } + } + spans++; + } while (--num_spans > 1); + } else { + do { + if (spans[0].coverage) { + if (spans[1].x - spans[0].x > 16) { + pixman_fill ((uint32_t *)r->u.fill.data, r->u.fill.stride / sizeof(uint32_t), r->bpp, + spans[0].x, y, spans[1].x - spans[0].x, h, + r->u.fill.pixel); + } else { + int yy = y, hh = h; + do { + int len = spans[1].x - spans[0].x; + uint32_t *d = (uint32_t*)(r->u.fill.data + r->u.fill.stride*yy + spans[0].x*4); + while (len-- > 0) + *d++ = r->u.fill.pixel; + yy++; + } while (--hh); + } + } + spans++; + } while (--num_spans > 1); + } + + return CAIRO_STATUS_SUCCESS; +} + +#if 0 +static cairo_status_t +_fill_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + do { + if (spans[0].coverage) { + pixman_fill ((uint32_t *) r->data, r->stride, r->bpp, + spans[0].x, y, + spans[1].x - spans[0].x, h, + r->pixel); + } + spans++; + } while (--num_spans > 1); + + return CAIRO_STATUS_SUCCESS; +} +#endif + +static cairo_status_t +_blit_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + int cpp; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + cpp = r->bpp/8; + if (likely (h == 1)) { + uint8_t *src = r->u.blit.src_data + y*r->u.blit.src_stride; + uint8_t *dst = r->u.blit.data + y*r->u.blit.stride; + do { + if (spans[0].coverage) { + void *s = src + spans[0].x*cpp; + void *d = dst + spans[0].x*cpp; + int len = (spans[1].x - spans[0].x) * cpp; + switch (len) { + case 1: + *(uint8_t *)d = *(uint8_t *)s; + break; + case 2: + *(uint16_t *)d = *(uint16_t *)s; + break; + case 4: + *(uint32_t *)d = *(uint32_t *)s; + break; +#if HAVE_UINT64_T + case 8: + *(uint64_t *)d = *(uint64_t *)s; + break; +#endif + default: + memcpy(d, s, len); + break; + } + } + spans++; + } while (--num_spans > 1); + } else { + do { + if (spans[0].coverage) { + int yy = y, hh = h; + do { + void *src = r->u.blit.src_data + yy*r->u.blit.src_stride + spans[0].x*cpp; + void *dst = r->u.blit.data + yy*r->u.blit.stride + spans[0].x*cpp; + int len = (spans[1].x - spans[0].x) * cpp; + switch (len) { + case 1: + *(uint8_t *)dst = *(uint8_t *)src; + break; + case 2: + *(uint16_t *)dst = *(uint16_t *)src; + break; + case 4: + *(uint32_t *)dst = *(uint32_t *)src; + break; +#if HAVE_UINT64_T + case 8: + *(uint64_t *)dst = *(uint64_t *)src; + break; +#endif + default: + memcpy(dst, src, len); + break; + } + yy++; + } while (--hh); + } + spans++; + } while (--num_spans > 1); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_mono_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + do { + if (spans[0].coverage) { + pixman_image_composite32 (r->op, + r->src, NULL, r->u.composite.dst, + spans[0].x + r->u.composite.src_x, y + r->u.composite.src_y, + 0, 0, + spans[0].x, y, + spans[1].x - spans[0].x, h); + } + spans++; + } while (--num_spans > 1); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_mono_unbounded_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (num_spans == 0) { + pixman_image_composite32 (PIXMAN_OP_CLEAR, + r->src, NULL, r->u.composite.dst, + spans[0].x + r->u.composite.src_x, y + r->u.composite.src_y, + 0, 0, + r->composite->unbounded.x, y, + r->composite->unbounded.width, h); + r->u.composite.mask_y = y + h; + return CAIRO_STATUS_SUCCESS; + } + + if (y != r->u.composite.mask_y) { + pixman_image_composite32 (PIXMAN_OP_CLEAR, + r->src, NULL, r->u.composite.dst, + spans[0].x + r->u.composite.src_x, y + r->u.composite.src_y, + 0, 0, + r->composite->unbounded.x, r->u.composite.mask_y, + r->composite->unbounded.width, y - r->u.composite.mask_y); + } + + if (spans[0].x != r->composite->unbounded.x) { + pixman_image_composite32 (PIXMAN_OP_CLEAR, + r->src, NULL, r->u.composite.dst, + spans[0].x + r->u.composite.src_x, y + r->u.composite.src_y, + 0, 0, + r->composite->unbounded.x, y, + spans[0].x - r->composite->unbounded.x, h); + } + + do { + int op = spans[0].coverage ? r->op : PIXMAN_OP_CLEAR; + pixman_image_composite32 (op, + r->src, NULL, r->u.composite.dst, + spans[0].x + r->u.composite.src_x, y + r->u.composite.src_y, + 0, 0, + spans[0].x, y, + spans[1].x - spans[0].x, h); + spans++; + } while (--num_spans > 1); + + if (spans[0].x != r->composite->unbounded.x + r->composite->unbounded.width) { + pixman_image_composite32 (PIXMAN_OP_CLEAR, + r->src, NULL, r->u.composite.dst, + spans[0].x + r->u.composite.src_x, y + r->u.composite.src_y, + 0, 0, + spans[0].x, y, + r->composite->unbounded.x + r->composite->unbounded.width - spans[0].x, h); + } + + r->u.composite.mask_y = y + h; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_mono_finish_unbounded_spans (void *abstract_renderer) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (r->u.composite.mask_y < r->composite->unbounded.y + r->composite->unbounded.height) { + pixman_image_composite32 (PIXMAN_OP_CLEAR, + r->src, NULL, r->u.composite.dst, + r->composite->unbounded.x + r->u.composite.src_x, r->u.composite.mask_y + r->u.composite.src_y, + 0, 0, + r->composite->unbounded.x, r->u.composite.mask_y, + r->composite->unbounded.width, + r->composite->unbounded.y + r->composite->unbounded.height - r->u.composite.mask_y); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +mono_renderer_init (cairo_image_span_renderer_t *r, + const cairo_composite_rectangles_t *composite, + cairo_antialias_t antialias, + cairo_bool_t needs_clip) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *)composite->surface; + + if (antialias != CAIRO_ANTIALIAS_NONE) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (!_cairo_pattern_is_opaque_solid (&composite->mask_pattern.base)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + r->base.render_rows = NULL; + if (composite->source_pattern.base.type == CAIRO_PATTERN_TYPE_SOLID) { + const cairo_color_t *color; + + color = &composite->source_pattern.solid.color; + if (composite->op == CAIRO_OPERATOR_CLEAR) + color = CAIRO_COLOR_TRANSPARENT; + + if (fill_reduces_to_source (composite->op, color, dst, &r->u.fill.pixel)) { + /* Use plain C for the fill operations as the span length is + * typically small, too small to payback the startup overheads of + * using SSE2 etc. + */ + switch (PIXMAN_FORMAT_BPP(dst->pixman_format)) { + case 8: r->base.render_rows = _fill8_spans; break; + case 16: r->base.render_rows = _fill16_spans; break; + case 32: r->base.render_rows = _fill32_spans; break; + default: break; + } + r->u.fill.data = dst->data; + r->u.fill.stride = dst->stride; + } + } else if ((composite->op == CAIRO_OPERATOR_SOURCE || + (composite->op == CAIRO_OPERATOR_OVER && + (dst->base.is_clear || (dst->base.content & CAIRO_CONTENT_ALPHA) == 0))) && + composite->source_pattern.base.type == CAIRO_PATTERN_TYPE_SURFACE && + composite->source_pattern.surface.surface->backend->type == CAIRO_SURFACE_TYPE_IMAGE && + to_image_surface(composite->source_pattern.surface.surface)->format == dst->format) + { + cairo_image_surface_t *src = + to_image_surface(composite->source_pattern.surface.surface); + int tx, ty; + + if (_cairo_matrix_is_integer_translation(&composite->source_pattern.base.matrix, + &tx, &ty) && + composite->bounded.x + tx >= 0 && + composite->bounded.y + ty >= 0 && + composite->bounded.x + composite->bounded.width + tx <= src->width && + composite->bounded.y + composite->bounded.height + ty <= src->height) { + + r->u.blit.stride = dst->stride; + r->u.blit.data = dst->data; + r->u.blit.src_stride = src->stride; + r->u.blit.src_data = src->data + src->stride * ty + tx * 4; + r->base.render_rows = _blit_spans; + } + } + + if (r->base.render_rows == NULL) { + r->src = _pixman_image_for_pattern (dst, &composite->source_pattern.base, FALSE, + &composite->unbounded, + &composite->source_sample_area, + &r->u.composite.src_x, &r->u.composite.src_y); + if (unlikely (r->src == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + r->u.composite.dst = to_pixman_image (composite->surface); + r->op = _pixman_operator (composite->op); + if (composite->is_bounded == 0) { + r->base.render_rows = _mono_unbounded_spans; + r->base.finish = _mono_finish_unbounded_spans; + r->u.composite.mask_y = composite->unbounded.y; + } else + r->base.render_rows = _mono_spans; + } + r->bpp = PIXMAN_FORMAT_BPP(dst->pixman_format); + + return CAIRO_INT_STATUS_SUCCESS; +} + +#define ONE_HALF 0x7f +#define RB_MASK 0x00ff00ff +#define RB_ONE_HALF 0x007f007f +#define RB_MASK_PLUS_ONE 0x01000100 +#define G_SHIFT 8 +static inline uint32_t +mul8x2_8 (uint32_t a, uint8_t b) +{ + uint32_t t = (a & RB_MASK) * b + RB_ONE_HALF; + return ((t + ((t >> G_SHIFT) & RB_MASK)) >> G_SHIFT) & RB_MASK; +} + +static inline uint32_t +add8x2_8x2 (uint32_t a, uint32_t b) +{ + uint32_t t = a + b; + t |= RB_MASK_PLUS_ONE - ((t >> G_SHIFT) & RB_MASK); + return t & RB_MASK; +} + +static inline uint8_t +mul8_8 (uint8_t a, uint8_t b) +{ + uint16_t t = a * (uint16_t)b + ONE_HALF; + return ((t >> G_SHIFT) + t) >> G_SHIFT; +} + +static inline uint32_t +lerp8x4 (uint32_t src, uint8_t a, uint32_t dst) +{ + return (add8x2_8x2 (mul8x2_8 (src, a), + mul8x2_8 (dst, ~a)) | + add8x2_8x2 (mul8x2_8 (src >> G_SHIFT, a), + mul8x2_8 (dst >> G_SHIFT, ~a)) << G_SHIFT); +} + +static cairo_status_t +_fill_a8_lerp_opaque_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + if (likely(h == 1)) { + uint8_t *d = r->u.fill.data + r->u.fill.stride*y; + do { + uint8_t a = spans[0].coverage; + if (a) { + int len = spans[1].x - spans[0].x; + if (a == 0xff) { + memset(d + spans[0].x, r->u.fill.pixel, len); + } else { + uint8_t s = mul8_8(a, r->u.fill.pixel); + uint8_t *dst = d + spans[0].x; + a = ~a; + while (len-- > 0) { + uint8_t t = mul8_8(*dst, a); + *dst++ = t + s; + } + } + } + spans++; + } while (--num_spans > 1); + } else { + do { + uint8_t a = spans[0].coverage; + if (a) { + int yy = y, hh = h; + if (a == 0xff) { + do { + int len = spans[1].x - spans[0].x; + uint8_t *d = r->u.fill.data + r->u.fill.stride*yy + spans[0].x; + memset(d, r->u.fill.pixel, len); + yy++; + } while (--hh); + } else { + uint8_t s = mul8_8(a, r->u.fill.pixel); + a = ~a; + do { + int len = spans[1].x - spans[0].x; + uint8_t *d = r->u.fill.data + r->u.fill.stride*yy + spans[0].x; + while (len-- > 0) { + uint8_t t = mul8_8(*d, a); + *d++ = t + s; + } + yy++; + } while (--hh); + } + } + spans++; + } while (--num_spans > 1); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_fill_xrgb32_lerp_opaque_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + if (likely(h == 1)) { + do { + uint8_t a = spans[0].coverage; + if (a) { + int len = spans[1].x - spans[0].x; + uint32_t *d = (uint32_t*)(r->u.fill.data + r->u.fill.stride*y + spans[0].x*4); + if (a == 0xff) { + if (len > 31) { + pixman_fill ((uint32_t *)r->u.fill.data, r->u.fill.stride / sizeof(uint32_t), 32, + spans[0].x, y, len, 1, r->u.fill.pixel); + } else { + uint32_t *d = (uint32_t*)(r->u.fill.data + r->u.fill.stride*y + spans[0].x*4); + while (len-- > 0) + *d++ = r->u.fill.pixel; + } + } else while (len-- > 0) { + *d = lerp8x4 (r->u.fill.pixel, a, *d); + d++; + } + } + spans++; + } while (--num_spans > 1); + } else { + do { + uint8_t a = spans[0].coverage; + if (a) { + if (a == 0xff) { + if (spans[1].x - spans[0].x > 16) { + pixman_fill ((uint32_t *)r->u.fill.data, r->u.fill.stride / sizeof(uint32_t), 32, + spans[0].x, y, spans[1].x - spans[0].x, h, + r->u.fill.pixel); + } else { + int yy = y, hh = h; + do { + int len = spans[1].x - spans[0].x; + uint32_t *d = (uint32_t*)(r->u.fill.data + r->u.fill.stride*yy + spans[0].x*4); + while (len-- > 0) + *d++ = r->u.fill.pixel; + yy++; + } while (--hh); + } + } else { + int yy = y, hh = h; + do { + int len = spans[1].x - spans[0].x; + uint32_t *d = (uint32_t *)(r->u.fill.data + r->u.fill.stride*yy + spans[0].x*4); + while (len-- > 0) { + *d = lerp8x4 (r->u.fill.pixel, a, *d); + d++; + } + yy++; + } while (--hh); + } + } + spans++; + } while (--num_spans > 1); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_fill_a8_lerp_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + if (likely(h == 1)) { + do { + uint8_t a = mul8_8 (spans[0].coverage, r->bpp); + if (a) { + int len = spans[1].x - spans[0].x; + uint8_t *d = r->u.fill.data + r->u.fill.stride*y + spans[0].x; + uint16_t p = (uint16_t)a * r->u.fill.pixel + 0x7f; + uint16_t ia = ~a; + while (len-- > 0) { + uint16_t t = *d*ia + p; + *d++ = (t + (t>>8)) >> 8; + } + } + spans++; + } while (--num_spans > 1); + } else { + do { + uint8_t a = mul8_8 (spans[0].coverage, r->bpp); + if (a) { + int yy = y, hh = h; + uint16_t p = (uint16_t)a * r->u.fill.pixel + 0x7f; + uint16_t ia = ~a; + do { + int len = spans[1].x - spans[0].x; + uint8_t *d = r->u.fill.data + r->u.fill.stride*yy + spans[0].x; + while (len-- > 0) { + uint16_t t = *d*ia + p; + *d++ = (t + (t>>8)) >> 8; + } + yy++; + } while (--hh); + } + spans++; + } while (--num_spans > 1); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_fill_xrgb32_lerp_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + if (likely(h == 1)) { + do { + uint8_t a = mul8_8 (spans[0].coverage, r->bpp); + if (a) { + int len = spans[1].x - spans[0].x; + uint32_t *d = (uint32_t*)(r->u.fill.data + r->u.fill.stride*y + spans[0].x*4); + while (len-- > 0) { + *d = lerp8x4 (r->u.fill.pixel, a, *d); + d++; + } + } + spans++; + } while (--num_spans > 1); + } else { + do { + uint8_t a = mul8_8 (spans[0].coverage, r->bpp); + if (a) { + int yy = y, hh = h; + do { + int len = spans[1].x - spans[0].x; + uint32_t *d = (uint32_t *)(r->u.fill.data + r->u.fill.stride*yy + spans[0].x*4); + while (len-- > 0) { + *d = lerp8x4 (r->u.fill.pixel, a, *d); + d++; + } + yy++; + } while (--hh); + } + spans++; + } while (--num_spans > 1); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_blit_xrgb32_lerp_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + if (likely(h == 1)) { + uint8_t *src = r->u.blit.src_data + y*r->u.blit.src_stride; + uint8_t *dst = r->u.blit.data + y*r->u.blit.stride; + do { + uint8_t a = mul8_8 (spans[0].coverage, r->bpp); + if (a) { + uint32_t *s = (uint32_t*)src + spans[0].x; + uint32_t *d = (uint32_t*)dst + spans[0].x; + int len = spans[1].x - spans[0].x; + if (a == 0xff) { + if (len == 1) + *d = *s; + else + memcpy(d, s, len*4); + } else { + while (len-- > 0) { + *d = lerp8x4 (*s, a, *d); + s++, d++; + } + } + } + spans++; + } while (--num_spans > 1); + } else { + do { + uint8_t a = mul8_8 (spans[0].coverage, r->bpp); + if (a) { + int yy = y, hh = h; + do { + uint32_t *s = (uint32_t *)(r->u.blit.src_data + yy*r->u.blit.src_stride + spans[0].x * 4); + uint32_t *d = (uint32_t *)(r->u.blit.data + yy*r->u.blit.stride + spans[0].x * 4); + int len = spans[1].x - spans[0].x; + if (a == 0xff) { + if (len == 1) + *d = *s; + else + memcpy(d, s, len * 4); + } else { + while (len-- > 0) { + *d = lerp8x4 (*s, a, *d); + s++, d++; + } + } + yy++; + } while (--hh); + } + spans++; + } while (--num_spans > 1); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_inplace_spans (void *abstract_renderer, + int y, int h, + const cairo_half_open_span_t *spans, + unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + uint8_t *mask; + int x0, x1; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + if (num_spans == 2 && spans[0].coverage == 0xff) { + pixman_image_composite32 (r->op, r->src, NULL, r->u.composite.dst, + spans[0].x + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + spans[0].x, y, + spans[1].x - spans[0].x, h); + return CAIRO_STATUS_SUCCESS; + } + + mask = (uint8_t *)pixman_image_get_data (r->mask); + x1 = x0 = spans[0].x; + do { + int len = spans[1].x - spans[0].x; + *mask++ = spans[0].coverage; + if (len > 1) { + if (len >= r->u.composite.run_length && spans[0].coverage == 0xff) { + if (x1 != x0) { + pixman_image_composite32 (r->op, r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + x1 - x0, h); + } + pixman_image_composite32 (r->op, r->src, NULL, r->u.composite.dst, + spans[0].x + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + spans[0].x, y, + len, h); + mask = (uint8_t *)pixman_image_get_data (r->mask); + x0 = spans[1].x; + } else if (spans[0].coverage == 0x0 && + x1 - x0 > r->u.composite.run_length) { + pixman_image_composite32 (r->op, r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + x1 - x0, h); + mask = (uint8_t *)pixman_image_get_data (r->mask); + x0 = spans[1].x; + }else { + memset (mask, spans[0].coverage, --len); + mask += len; + } + } + x1 = spans[1].x; + spans++; + } while (--num_spans > 1); + + if (x1 != x0) { + pixman_image_composite32 (r->op, r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + x1 - x0, h); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_inplace_opacity_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, + unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + uint8_t *mask; + int x0, x1; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + mask = (uint8_t *)pixman_image_get_data (r->mask); + x1 = x0 = spans[0].x; + do { + int len = spans[1].x - spans[0].x; + uint8_t m = mul8_8(spans[0].coverage, r->bpp); + *mask++ = m; + if (len > 1) { + if (m == 0 && + x1 - x0 > r->u.composite.run_length) { + pixman_image_composite32 (r->op, r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + x1 - x0, h); + mask = (uint8_t *)pixman_image_get_data (r->mask); + x0 = spans[1].x; + }else { + memset (mask, m, --len); + mask += len; + } + } + x1 = spans[1].x; + spans++; + } while (--num_spans > 1); + + if (x1 != x0) { + pixman_image_composite32 (r->op, r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + x1 - x0, h); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_inplace_src_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, + unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + uint8_t *m, *base = (uint8_t*)pixman_image_get_data(r->mask); + int x0; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + x0 = spans[0].x; + m = base; + do { + int len = spans[1].x - spans[0].x; + if (len >= r->u.composite.run_length && spans[0].coverage == 0xff) { + if (spans[0].x != x0) { +#if PIXMAN_HAS_OP_LERP + pixman_image_composite32 (PIXMAN_OP_LERP_SRC, + r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + spans[0].x - x0, h); +#else + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + r->mask, NULL, r->u.composite.dst, + 0, 0, + 0, 0, + x0, y, + spans[0].x - x0, h); + pixman_image_composite32 (PIXMAN_OP_ADD, + r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + spans[0].x - x0, h); +#endif + } + + pixman_image_composite32 (PIXMAN_OP_SRC, + r->src, NULL, r->u.composite.dst, + spans[0].x + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + spans[0].x, y, + spans[1].x - spans[0].x, h); + + m = base; + x0 = spans[1].x; + } else if (spans[0].coverage == 0x0) { + if (spans[0].x != x0) { +#if PIXMAN_HAS_OP_LERP + pixman_image_composite32 (PIXMAN_OP_LERP_SRC, + r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + spans[0].x - x0, h); +#else + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + r->mask, NULL, r->u.composite.dst, + 0, 0, + 0, 0, + x0, y, + spans[0].x - x0, h); + pixman_image_composite32 (PIXMAN_OP_ADD, + r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + spans[0].x - x0, h); +#endif + } + + m = base; + x0 = spans[1].x; + } else { + *m++ = spans[0].coverage; + if (len > 1) { + memset (m, spans[0].coverage, --len); + m += len; + } + } + spans++; + } while (--num_spans > 1); + + if (spans[0].x != x0) { +#if PIXMAN_HAS_OP_LERP + pixman_image_composite32 (PIXMAN_OP_LERP_SRC, + r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + spans[0].x - x0, h); +#else + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + r->mask, NULL, r->u.composite.dst, + 0, 0, + 0, 0, + x0, y, + spans[0].x - x0, h); + pixman_image_composite32 (PIXMAN_OP_ADD, + r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + spans[0].x - x0, h); +#endif + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_inplace_src_opacity_spans (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, + unsigned num_spans) +{ + cairo_image_span_renderer_t *r = abstract_renderer; + uint8_t *mask; + int x0; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + x0 = spans[0].x; + mask = (uint8_t *)pixman_image_get_data (r->mask); + do { + int len = spans[1].x - spans[0].x; + uint8_t m = mul8_8(spans[0].coverage, r->bpp); + if (m == 0) { + if (spans[0].x != x0) { +#if PIXMAN_HAS_OP_LERP + pixman_image_composite32 (PIXMAN_OP_LERP_SRC, + r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + spans[0].x - x0, h); +#else + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + r->mask, NULL, r->u.composite.dst, + 0, 0, + 0, 0, + x0, y, + spans[0].x - x0, h); + pixman_image_composite32 (PIXMAN_OP_ADD, + r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + spans[0].x - x0, h); +#endif + } + + mask = (uint8_t *)pixman_image_get_data (r->mask); + x0 = spans[1].x; + } else { + *mask++ = m; + if (len > 1) { + memset (mask, m, --len); + mask += len; + } + } + spans++; + } while (--num_spans > 1); + + if (spans[0].x != x0) { +#if PIXMAN_HAS_OP_LERP + pixman_image_composite32 (PIXMAN_OP_LERP_SRC, + r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + spans[0].x - x0, h); +#else + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + r->mask, NULL, r->u.composite.dst, + 0, 0, + 0, 0, + x0, y, + spans[0].x - x0, h); + pixman_image_composite32 (PIXMAN_OP_ADD, + r->src, r->mask, r->u.composite.dst, + x0 + r->u.composite.src_x, + y + r->u.composite.src_y, + 0, 0, + x0, y, + spans[0].x - x0, h); +#endif + } + + return CAIRO_STATUS_SUCCESS; +} + +static void free_pixels (pixman_image_t *image, void *data) +{ + free (data); +} + +static cairo_int_status_t +inplace_renderer_init (cairo_image_span_renderer_t *r, + const cairo_composite_rectangles_t *composite, + cairo_antialias_t antialias, + cairo_bool_t needs_clip) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *)composite->surface; + uint8_t *buf; + + if (composite->mask_pattern.base.type != CAIRO_PATTERN_TYPE_SOLID) + return CAIRO_INT_STATUS_UNSUPPORTED; + + r->base.render_rows = NULL; + r->bpp = composite->mask_pattern.solid.color.alpha_short >> 8; + + if (composite->source_pattern.base.type == CAIRO_PATTERN_TYPE_SOLID) { + const cairo_color_t *color; + + color = &composite->source_pattern.solid.color; + if (composite->op == CAIRO_OPERATOR_CLEAR) + color = CAIRO_COLOR_TRANSPARENT; + + if (fill_reduces_to_source (composite->op, color, dst, &r->u.fill.pixel)) { + /* Use plain C for the fill operations as the span length is + * typically small, too small to payback the startup overheads of + * using SSE2 etc. + */ + if (r->bpp == 0xff) { + switch (dst->format) { + case CAIRO_FORMAT_A8: + r->base.render_rows = _fill_a8_lerp_opaque_spans; + break; + case CAIRO_FORMAT_RGB24: + case CAIRO_FORMAT_ARGB32: + r->base.render_rows = _fill_xrgb32_lerp_opaque_spans; + break; + case CAIRO_FORMAT_A1: + case CAIRO_FORMAT_RGB16_565: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGBA128F: + case CAIRO_FORMAT_INVALID: + default: break; + } + } else { + switch (dst->format) { + case CAIRO_FORMAT_A8: + r->base.render_rows = _fill_a8_lerp_spans; + break; + case CAIRO_FORMAT_RGB24: + case CAIRO_FORMAT_ARGB32: + r->base.render_rows = _fill_xrgb32_lerp_spans; + break; + case CAIRO_FORMAT_A1: + case CAIRO_FORMAT_RGB16_565: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGBA128F: + case CAIRO_FORMAT_INVALID: + default: break; + } + } + r->u.fill.data = dst->data; + r->u.fill.stride = dst->stride; + } + } else if ((dst->format == CAIRO_FORMAT_ARGB32 || dst->format == CAIRO_FORMAT_RGB24) && + (composite->op == CAIRO_OPERATOR_SOURCE || + (composite->op == CAIRO_OPERATOR_OVER && + (dst->base.is_clear || (dst->base.content & CAIRO_CONTENT_ALPHA) == 0))) && + composite->source_pattern.base.type == CAIRO_PATTERN_TYPE_SURFACE && + composite->source_pattern.surface.surface->backend->type == CAIRO_SURFACE_TYPE_IMAGE && + to_image_surface(composite->source_pattern.surface.surface)->format == dst->format) + { + cairo_image_surface_t *src = + to_image_surface(composite->source_pattern.surface.surface); + int tx, ty; + + if (_cairo_matrix_is_integer_translation(&composite->source_pattern.base.matrix, + &tx, &ty) && + composite->bounded.x + tx >= 0 && + composite->bounded.y + ty >= 0 && + composite->bounded.x + composite->bounded.width + tx <= src->width && + composite->bounded.y + composite->bounded.height + ty <= src->height) { + + assert(PIXMAN_FORMAT_BPP(dst->pixman_format) == 32); + r->u.blit.stride = dst->stride; + r->u.blit.data = dst->data; + r->u.blit.src_stride = src->stride; + r->u.blit.src_data = src->data + src->stride * ty + tx * 4; + r->base.render_rows = _blit_xrgb32_lerp_spans; + } + } + if (r->base.render_rows == NULL) { + const cairo_pattern_t *src = &composite->source_pattern.base; + unsigned int width; + + if (composite->is_bounded == 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + r->base.render_rows = r->bpp == 0xff ? _inplace_spans : _inplace_opacity_spans; + width = (composite->bounded.width + 3) & ~3; + + r->u.composite.run_length = 8; + if (src->type == CAIRO_PATTERN_TYPE_LINEAR || + src->type == CAIRO_PATTERN_TYPE_RADIAL) + r->u.composite.run_length = 256; + if (dst->base.is_clear && + (composite->op == CAIRO_OPERATOR_SOURCE || + composite->op == CAIRO_OPERATOR_OVER || + composite->op == CAIRO_OPERATOR_ADD)) { + r->op = PIXMAN_OP_SRC; + } else if (composite->op == CAIRO_OPERATOR_SOURCE) { + r->base.render_rows = r->bpp == 0xff ? _inplace_src_spans : _inplace_src_opacity_spans; + r->u.composite.mask_y = r->composite->unbounded.y; + width = (composite->unbounded.width + 3) & ~3; + } else if (composite->op == CAIRO_OPERATOR_CLEAR) { + r->op = PIXMAN_OP_OUT_REVERSE; + src = NULL; + } else { + r->op = _pixman_operator (composite->op); + } + + r->src = _pixman_image_for_pattern (dst, src, FALSE, + &composite->bounded, + &composite->source_sample_area, + &r->u.composite.src_x, &r->u.composite.src_y); + if (unlikely (r->src == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + /* Create an effectively unbounded mask by repeating the single line */ + buf = r->_buf; + if (width > SZ_BUF) { + buf = _cairo_malloc (width); + if (unlikely (buf == NULL)) { + pixman_image_unref (r->src); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + } + r->mask = pixman_image_create_bits (PIXMAN_a8, + width, composite->unbounded.height, + (uint32_t *)buf, 0); + if (unlikely (r->mask == NULL)) { + pixman_image_unref (r->src); + if (buf != r->_buf) + free (buf); + return _cairo_error(CAIRO_STATUS_NO_MEMORY); + } + + if (buf != r->_buf) + pixman_image_set_destroy_function (r->mask, free_pixels, buf); + + r->u.composite.dst = dst->pixman_image; + } + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +span_renderer_init (cairo_abstract_span_renderer_t *_r, + const cairo_composite_rectangles_t *composite, + cairo_antialias_t antialias, + cairo_bool_t needs_clip) +{ + cairo_image_span_renderer_t *r = (cairo_image_span_renderer_t *)_r; + cairo_image_surface_t *dst = (cairo_image_surface_t *)composite->surface; + const cairo_pattern_t *source = &composite->source_pattern.base; + cairo_operator_t op = composite->op; + cairo_int_status_t status; + + TRACE ((stderr, "%s: antialias=%d, needs_clip=%d\n", __FUNCTION__, + antialias, needs_clip)); + + if (needs_clip) + return CAIRO_INT_STATUS_UNSUPPORTED; + + r->composite = composite; + r->mask = NULL; + r->src = NULL; + r->base.finish = NULL; + + status = mono_renderer_init (r, composite, antialias, needs_clip); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + status = inplace_renderer_init (r, composite, antialias, needs_clip); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + r->bpp = 0; + + if (op == CAIRO_OPERATOR_CLEAR) { +#if PIXMAN_HAS_OP_LERP + op = PIXMAN_OP_LERP_CLEAR; +#else + source = &_cairo_pattern_white.base; + op = PIXMAN_OP_OUT_REVERSE; +#endif + } else if (dst->base.is_clear && + (op == CAIRO_OPERATOR_SOURCE || + op == CAIRO_OPERATOR_OVER || + op == CAIRO_OPERATOR_ADD)) { + op = PIXMAN_OP_SRC; + } else if (op == CAIRO_OPERATOR_SOURCE) { + if (_cairo_pattern_is_opaque (&composite->source_pattern.base, + &composite->source_sample_area)) + { + op = PIXMAN_OP_OVER; + } + else + { +#if PIXMAN_HAS_OP_LERP + op = PIXMAN_OP_LERP_SRC; +#else + return CAIRO_INT_STATUS_UNSUPPORTED; +#endif + } + } else { + op = _pixman_operator (op); + } + r->op = op; + + r->src = _pixman_image_for_pattern (dst, source, FALSE, + &composite->unbounded, + &composite->source_sample_area, + &r->u.mask.src_x, &r->u.mask.src_y); + if (unlikely (r->src == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + r->opacity = 1.0; + if (composite->mask_pattern.base.type == CAIRO_PATTERN_TYPE_SOLID) { + r->opacity = composite->mask_pattern.solid.color.alpha; + } else { + pixman_image_t *mask; + int mask_x, mask_y; + + mask = _pixman_image_for_pattern (dst, + &composite->mask_pattern.base, + TRUE, + &composite->unbounded, + &composite->mask_sample_area, + &mask_x, &mask_y); + if (unlikely (mask == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + /* XXX Component-alpha? */ + if ((dst->base.content & CAIRO_CONTENT_COLOR) == 0 && + _cairo_pattern_is_opaque (source, &composite->source_sample_area)) + { + pixman_image_unref (r->src); + r->src = mask; + r->u.mask.src_x = mask_x; + r->u.mask.src_y = mask_y; + mask = NULL; + } + + if (mask) { + pixman_image_unref (mask); + return CAIRO_INT_STATUS_UNSUPPORTED; + } + } + + r->u.mask.extents = composite->unbounded; + r->u.mask.stride = (r->u.mask.extents.width + 3) & ~3; + if (r->u.mask.extents.height * r->u.mask.stride > SZ_BUF) { + r->mask = pixman_image_create_bits (PIXMAN_a8, + r->u.mask.extents.width, + r->u.mask.extents.height, + NULL, 0); + + r->base.render_rows = _cairo_image_spans; + r->base.finish = NULL; + } else { + r->mask = pixman_image_create_bits (PIXMAN_a8, + r->u.mask.extents.width, + r->u.mask.extents.height, + (uint32_t *)r->_buf, r->u.mask.stride); + + r->base.render_rows = _cairo_image_spans_and_zero; + r->base.finish = _cairo_image_finish_spans_and_zero; + } + if (unlikely (r->mask == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + r->u.mask.data = (uint8_t *) pixman_image_get_data (r->mask); + r->u.mask.stride = pixman_image_get_stride (r->mask); + + r->u.mask.extents.height += r->u.mask.extents.y; + return CAIRO_STATUS_SUCCESS; +} + +static void +span_renderer_fini (cairo_abstract_span_renderer_t *_r, + cairo_int_status_t status) +{ + cairo_image_span_renderer_t *r = (cairo_image_span_renderer_t *) _r; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + if (r->base.finish) + r->base.finish (r); + } + if (likely (status == CAIRO_INT_STATUS_SUCCESS && r->bpp == 0)) { + const cairo_composite_rectangles_t *composite = r->composite; + + pixman_image_composite32 (r->op, r->src, r->mask, + to_pixman_image (composite->surface), + composite->unbounded.x + r->u.mask.src_x, + composite->unbounded.y + r->u.mask.src_y, + 0, 0, + composite->unbounded.x, + composite->unbounded.y, + composite->unbounded.width, + composite->unbounded.height); + } + + if (r->src) + pixman_image_unref (r->src); + if (r->mask) + pixman_image_unref (r->mask); +} +#endif + +const cairo_compositor_t * +_cairo_image_spans_compositor_get (void) +{ + static cairo_atomic_once_t once = CAIRO_ATOMIC_ONCE_INIT; + static cairo_spans_compositor_t spans; + static cairo_compositor_t shape; + + if (_cairo_atomic_init_once_enter(&once)) { + _cairo_shape_mask_compositor_init (&shape, + _cairo_image_traps_compositor_get()); + shape.glyphs = NULL; + + _cairo_spans_compositor_init (&spans, &shape); + + spans.flags = 0; +#if PIXMAN_HAS_OP_LERP + spans.flags |= CAIRO_SPANS_COMPOSITOR_HAS_LERP; +#endif + + //spans.acquire = acquire; + //spans.release = release; + spans.fill_boxes = fill_boxes; + spans.draw_image_boxes = draw_image_boxes; + //spans.copy_boxes = copy_boxes; + spans.pattern_to_surface = _cairo_image_source_create_for_pattern; + //spans.check_composite_boxes = check_composite_boxes; + spans.composite_boxes = composite_boxes; + //spans.check_span_renderer = check_span_renderer; + spans.renderer_init = span_renderer_init; + spans.renderer_fini = span_renderer_fini; + + _cairo_atomic_init_once_leave(&once); + } + + return &spans.base; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-image-info-private.h b/local/recipes/libs/cairo/source/src/cairo-image-info-private.h new file mode 100644 index 0000000000..3808d07b3d --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-image-info-private.h @@ -0,0 +1,68 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2008 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Adrian Johnson. + * + * Contributor(s): + * Adrian Johnson + */ + +#ifndef CAIRO_IMAGE_INFO_PRIVATE_H +#define CAIRO_IMAGE_INFO_PRIVATE_H + +#include "cairoint.h" + +typedef struct _cairo_image_info { + int width; + int height; + int num_components; + int bits_per_component; +} cairo_image_info_t; + +cairo_private cairo_int_status_t +_cairo_image_info_get_jpeg_info (cairo_image_info_t *info, + const unsigned char *data, + unsigned long length); + +cairo_private cairo_int_status_t +_cairo_image_info_get_jpx_info (cairo_image_info_t *info, + const unsigned char *data, + unsigned long length); + +cairo_private cairo_int_status_t +_cairo_image_info_get_png_info (cairo_image_info_t *info, + const unsigned char *data, + unsigned long length); + +cairo_private cairo_int_status_t +_cairo_image_info_get_jbig2_info (cairo_image_info_t *info, + const unsigned char *data, + unsigned long length); + +#endif /* CAIRO_IMAGE_INFO_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-image-info.c b/local/recipes/libs/cairo/source/src/cairo-image-info.c new file mode 100644 index 0000000000..9693e487f6 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-image-info.c @@ -0,0 +1,433 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2008 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Adrian Johnson. + * + * Contributor(s): + * Adrian Johnson + */ + +#include "cairoint.h" + +#include "cairo-error-private.h" +#include "cairo-image-info-private.h" + +/* JPEG (image/jpeg) + * + * http://www.w3.org/Graphics/JPEG/itu-t81.pdf + */ + +/* Markers with no parameters. All other markers are followed by a two + * byte length of the parameters. */ +#define TEM 0x01 +#define RST_begin 0xd0 +#define RST_end 0xd7 +#define SOI 0xd8 +#define EOI 0xd9 + +/* Start of frame markers. */ +#define SOF0 0xc0 +#define SOF1 0xc1 +#define SOF2 0xc2 +#define SOF3 0xc3 +#define SOF5 0xc5 +#define SOF6 0xc6 +#define SOF7 0xc7 +#define SOF9 0xc9 +#define SOF10 0xca +#define SOF11 0xcb +#define SOF13 0xcd +#define SOF14 0xce +#define SOF15 0xcf + +static const unsigned char * +_jpeg_skip_segment (const unsigned char *p) +{ + int len; + + p++; + len = (p[0] << 8) | p[1]; + + return p + len; +} + +static void +_jpeg_extract_info (cairo_image_info_t *info, const unsigned char *p) +{ + info->width = (p[6] << 8) + p[7]; + info->height = (p[4] << 8) + p[5]; + info->num_components = p[8]; + info->bits_per_component = p[3]; +} + +cairo_int_status_t +_cairo_image_info_get_jpeg_info (cairo_image_info_t *info, + const unsigned char *data, + unsigned long length) +{ + const unsigned char *p = data; + + while (p + 1 < data + length) { + if (*p != 0xff) + return CAIRO_INT_STATUS_UNSUPPORTED; + p++; + + switch (*p) { + /* skip fill bytes */ + case 0xff: + p++; + break; + + case TEM: + case SOI: + case EOI: + p++; + break; + + case SOF0: + case SOF1: + case SOF2: + case SOF3: + case SOF5: + case SOF6: + case SOF7: + case SOF9: + case SOF10: + case SOF11: + case SOF13: + case SOF14: + case SOF15: + /* Start of frame found. Extract the image parameters. */ + if (p + 8 > data + length) + return CAIRO_INT_STATUS_UNSUPPORTED; + + _jpeg_extract_info (info, p); + return CAIRO_STATUS_SUCCESS; + + default: + if (*p >= RST_begin && *p <= RST_end) { + p++; + break; + } + + if (p + 3 > data + length) + return CAIRO_INT_STATUS_UNSUPPORTED; + + p = _jpeg_skip_segment (p); + break; + } + } + + return CAIRO_STATUS_SUCCESS; +} + +/* JPEG 2000 (image/jp2) + * + * http://www.jpeg.org/public/15444-1annexi.pdf + */ + +#define JPX_FILETYPE 0x66747970 +#define JPX_JP2_HEADER 0x6A703268 +#define JPX_IMAGE_HEADER 0x69686472 + +static const unsigned char _jpx_signature[] = { + 0x00, 0x00, 0x00, 0x0c, 0x6a, 0x50, 0x20, 0x20, 0x0d, 0x0a, 0x87, 0x0a +}; + +static const unsigned char * +_jpx_next_box (const unsigned char *p, const unsigned char *end) +{ + if (p + 4 < end) { + uint32_t length = get_unaligned_be32 (p); + if (p + length < end) + return p + length; + } + + return end; +} + +static const unsigned char * +_jpx_get_box_contents (const unsigned char *p) +{ + return p + 8; +} + +static cairo_bool_t +_jpx_match_box (const unsigned char *p, const unsigned char *end, uint32_t type) +{ + uint32_t length; + + if (p + 8 < end) { + length = get_unaligned_be32 (p); + if (get_unaligned_be32 (p + 4) == type && p + length < end) + return TRUE; + } + + return FALSE; +} + +static const unsigned char * +_jpx_find_box (const unsigned char *p, const unsigned char *end, uint32_t type) +{ + while (p < end) { + if (_jpx_match_box (p, end, type)) + return p; + p = _jpx_next_box (p, end); + } + + return NULL; +} + +static cairo_int_status_t +_jpx_extract_info (const unsigned char *p, cairo_image_info_t *info, const unsigned char *end) +{ + if (p + 11 >= end) { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + info->height = get_unaligned_be32 (p); + info->width = get_unaligned_be32 (p + 4); + info->num_components = (p[8] << 8) + p[9]; + info->bits_per_component = p[10]; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_int_status_t +_cairo_image_info_get_jpx_info (cairo_image_info_t *info, + const unsigned char *data, + unsigned long length) +{ + const unsigned char *p = data; + const unsigned char *end = data + length; + + /* First 12 bytes must be the JPEG 2000 signature box. */ + if (length < ARRAY_LENGTH(_jpx_signature) || + memcmp(p, _jpx_signature, ARRAY_LENGTH(_jpx_signature)) != 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + p += ARRAY_LENGTH(_jpx_signature); + + /* Next box must be a File Type Box */ + if (! _jpx_match_box (p, end, JPX_FILETYPE)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + p = _jpx_next_box (p, end); + + /* Locate the JP2 header box. */ + p = _jpx_find_box (p, end, JPX_JP2_HEADER); + if (!p) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Step into the JP2 header box. First box must be the Image + * Header */ + p = _jpx_get_box_contents (p); + if (! _jpx_match_box (p, end, JPX_IMAGE_HEADER)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Get the image info */ + p = _jpx_get_box_contents (p); + return _jpx_extract_info (p, info, end); +} + +/* PNG (image/png) + * + * http://www.w3.org/TR/2003/REC-PNG-20031110/ + */ + +#define PNG_IHDR 0x49484452 + +static const unsigned char _png_magic[8] = { 137, 80, 78, 71, 13, 10, 26, 10 }; + +cairo_int_status_t +_cairo_image_info_get_png_info (cairo_image_info_t *info, + const unsigned char *data, + unsigned long length) +{ + const unsigned char *p = data; + const unsigned char *end = data + length; + + if (length < 8 || memcmp (data, _png_magic, 8) != 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + p += 8; + + /* The first chunk must be IDHR. IDHR has 13 bytes of data plus + * the 12 bytes of overhead for the chunk. */ + if (p + 13 + 12 > end) + return CAIRO_INT_STATUS_UNSUPPORTED; + + p += 4; + if (get_unaligned_be32 (p) != PNG_IHDR) + return CAIRO_INT_STATUS_UNSUPPORTED; + + p += 4; + info->width = get_unaligned_be32 (p); + p += 4; + info->height = get_unaligned_be32 (p); + + return CAIRO_STATUS_SUCCESS; +} + +static const unsigned char * +_jbig2_find_data_end (const unsigned char *p, + const unsigned char *end, + int type) +{ + unsigned char end_seq[2]; + int mmr; + + /* Segments of type "Immediate generic region" may have an + * unspecified data length. The JBIG2 specification specifies the + * method to find the end of the data for these segments. */ + if (type == 36 || type == 38 || type == 39) { + if (p + 18 < end) { + mmr = p[17] & 0x01; + if (mmr) { + /* MMR encoding ends with 0x00, 0x00 */ + end_seq[0] = 0x00; + end_seq[1] = 0x00; + } else { + /* Template encoding ends with 0xff, 0xac */ + end_seq[0] = 0xff; + end_seq[1] = 0xac; + } + p += 18; + while (p < end) { + if (p[0] == end_seq[0] && p[1] == end_seq[1]) { + /* Skip the 2 terminating bytes and the 4 byte row count that follows. */ + p += 6; + if (p < end) + return p; + } + p++; + } + } + } + + return NULL; +} + +static const unsigned char * +_jbig2_get_next_segment (const unsigned char *p, + const unsigned char *end, + int *type, + const unsigned char **data, + unsigned long *data_len) +{ + unsigned long seg_num; + cairo_bool_t big_page_size; + int num_segs; + int ref_seg_bytes; + int referred_size; + + if (p + 6 >= end) + return NULL; + + seg_num = get_unaligned_be32 (p); + *type = p[4] & 0x3f; + big_page_size = (p[4] & 0x40) != 0; + p += 5; + + num_segs = p[0] >> 5; + if (num_segs == 7) { + if (p + 4 >= end) + return NULL; + num_segs = get_unaligned_be32 (p) & 0x1fffffff; + ref_seg_bytes = 4 + ((num_segs + 1)/8); + } else { + ref_seg_bytes = 1; + } + p += ref_seg_bytes; + + if (seg_num <= 256) + referred_size = 1; + else if (seg_num <= 65536) + referred_size = 2; + else + referred_size = 4; + + p += num_segs * referred_size; + p += big_page_size ? 4 : 1; + if (p + 4 >= end) + return NULL; + + *data_len = get_unaligned_be32 (p); + p += 4; + *data = p; + + if (*data_len == 0xffffffff) { + /* if data length is -1 we have to scan through the data to find the end */ + p = _jbig2_find_data_end (*data, end, *type); + if (!p || p >= end) + return NULL; + + *data_len = p - *data; + } else { + p += *data_len; + } + + if (p < end) + return p; + else + return NULL; +} + +static void +_jbig2_extract_info (cairo_image_info_t *info, const unsigned char *p) +{ + info->width = get_unaligned_be32 (p); + info->height = get_unaligned_be32 (p + 4); + info->num_components = 1; + info->bits_per_component = 1; +} + +cairo_int_status_t +_cairo_image_info_get_jbig2_info (cairo_image_info_t *info, + const unsigned char *data, + unsigned long length) +{ + const unsigned char *p = data; + const unsigned char *end = data + length; + int seg_type; + const unsigned char *seg_data; + unsigned long seg_data_len; + + while (p && p < end) { + p = _jbig2_get_next_segment (p, end, &seg_type, &seg_data, &seg_data_len); + if (p && seg_type == 48 && seg_data_len > 8) { + /* page information segment */ + _jbig2_extract_info (info, seg_data); + return CAIRO_STATUS_SUCCESS; + } + } + + return CAIRO_INT_STATUS_UNSUPPORTED; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-image-mask-compositor.c b/local/recipes/libs/cairo/source/src/cairo-image-mask-compositor.c new file mode 100644 index 0000000000..4934216f87 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-image-mask-compositor.c @@ -0,0 +1,414 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2003 University of Southern California + * Copyright © 2009,2010,2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +/* This compositor is slightly pointless. Just exists for testing + * and as skeleton code. + */ + +#include "cairoint.h" + +#include "cairo-image-surface-private.h" + +#include "cairo-compositor-private.h" +#include "cairo-region-private.h" + +#error This file isn't included in any Makefile + +static cairo_int_status_t +acquire (void *abstract_dst) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +release (void *abstract_dst) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +set_clip_region (void *_surface, + cairo_region_t *region) +{ + cairo_image_surface_t *surface = _surface; + pixman_region32_t *rgn = region ? ®ion->rgn : NULL; + + if (! pixman_image_set_clip_region32 (surface->pixman_image, rgn)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +has_snapshot (void *_dst, + const cairo_pattern_t *pattern) +{ + return FALSE; +} + +static cairo_int_status_t +draw_image (void *_dst, + cairo_image_surface_t *image, + int src_x, int src_y, + int width, int height, + int dst_x, int dst_y) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *)_dst; + + pixman_image_composite32 (PIXMAN_OP_SRC, + image->pixman_image, NULL, dst->pixman_image, + src_x, src_y, + 0, 0, + dst_x, dst_y, + width, height); + return CAIRO_STATUS_SUCCESS; +} + +static inline uint32_t +color_to_uint32 (const cairo_color_t *color) +{ + return + ((uint32_t)color->alpha_short >> 8 << 24) | + (color->red_short >> 8 << 16) | + (color->green_short & 0xff00) | + (color->blue_short >> 8); +} + +static inline cairo_bool_t +color_to_pixel (const cairo_color_t *color, + double opacity, + pixman_format_code_t format, + uint32_t *pixel) +{ + cairo_color_t opacity_color; + uint32_t c; + + if (!(format == PIXMAN_a8r8g8b8 || + format == PIXMAN_x8r8g8b8 || + format == PIXMAN_a8b8g8r8 || + format == PIXMAN_x8b8g8r8 || + format == PIXMAN_b8g8r8a8 || + format == PIXMAN_b8g8r8x8 || + format == PIXMAN_r5g6b5 || + format == PIXMAN_b5g6r5 || + format == PIXMAN_a8)) + { + return FALSE; + } + + if (opacity != 1.0) { + _cairo_color_init_rgba (&opacity_color, + color->red, + color->green, + color->blue, + color->alpha * opacity); + color = &opacity_color; + } + c = color_to_uint32 (color); + + if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_ABGR) { + c = ((c & 0xff000000) >> 0) | + ((c & 0x00ff0000) >> 16) | + ((c & 0x0000ff00) >> 0) | + ((c & 0x000000ff) << 16); + } + + if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_BGRA) { + c = ((c & 0xff000000) >> 24) | + ((c & 0x00ff0000) >> 8) | + ((c & 0x0000ff00) << 8) | + ((c & 0x000000ff) << 24); + } + + if (format == PIXMAN_a8) { + c = c >> 24; + } else if (format == PIXMAN_r5g6b5 || format == PIXMAN_b5g6r5) { + c = ((((c) >> 3) & 0x001f) | + (((c) >> 5) & 0x07e0) | + (((c) >> 8) & 0xf800)); + } + + *pixel = c; + return TRUE; +} + +static cairo_int_status_t +fill_rectangles (void *_dst, + cairo_operator_t op, + const cairo_color_t *color, + cairo_rectangle_int_t *rects, + int num_rects) +{ + cairo_image_surface_t *dst = _dst; + uint32_t pixel; + int i; + + if (! color_to_pixel (color, 1.0, dst->pixman_format, &pixel)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + for (i = 0; i < num_rects; i++) { + pixman_fill ((uint32_t *) dst->data, dst->stride / sizeof (uint32_t), + PIXMAN_FORMAT_BPP (dst->pixman_format), + rects[i].x, rects[i].y, + rects[i].width, rects[i].height, + pixel); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +fill_boxes (void *_dst, + cairo_operator_t op, + const cairo_color_t *color, + cairo_boxes_t *boxes) +{ + cairo_image_surface_t *dst = _dst; + struct _cairo_boxes_chunk *chunk; + uint32_t pixel; + int i; + + assert (boxes->is_pixel_aligned); + + if (! color_to_pixel (color, 1.0, dst->pixman_format, &pixel)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + int x1 = _cairo_fixed_integer_part (chunk->base[i].p1.x); + int y1 = _cairo_fixed_integer_part (chunk->base[i].p1.y); + int x2 = _cairo_fixed_integer_part (chunk->base[i].p2.x); + int y2 = _cairo_fixed_integer_part (chunk->base[i].p2.y); + pixman_fill ((uint32_t *) dst->data, dst->stride / sizeof (uint32_t), + PIXMAN_FORMAT_BPP (dst->pixman_format), + x1, y1, x2 - x1, y2 - y1, + pixel); + } + } + + return CAIRO_STATUS_SUCCESS; +} + +static pixman_op_t +_pixman_operator (cairo_operator_t op) +{ + switch ((int) op) { + case CAIRO_OPERATOR_CLEAR: + return PIXMAN_OP_CLEAR; + + case CAIRO_OPERATOR_SOURCE: + return PIXMAN_OP_SRC; + case CAIRO_OPERATOR_OVER: + return PIXMAN_OP_OVER; + case CAIRO_OPERATOR_IN: + return PIXMAN_OP_IN; + case CAIRO_OPERATOR_OUT: + return PIXMAN_OP_OUT; + case CAIRO_OPERATOR_ATOP: + return PIXMAN_OP_ATOP; + + case CAIRO_OPERATOR_DEST: + return PIXMAN_OP_DST; + case CAIRO_OPERATOR_DEST_OVER: + return PIXMAN_OP_OVER_REVERSE; + case CAIRO_OPERATOR_DEST_IN: + return PIXMAN_OP_IN_REVERSE; + case CAIRO_OPERATOR_DEST_OUT: + return PIXMAN_OP_OUT_REVERSE; + case CAIRO_OPERATOR_DEST_ATOP: + return PIXMAN_OP_ATOP_REVERSE; + + case CAIRO_OPERATOR_XOR: + return PIXMAN_OP_XOR; + case CAIRO_OPERATOR_ADD: + return PIXMAN_OP_ADD; + case CAIRO_OPERATOR_SATURATE: + return PIXMAN_OP_SATURATE; + + case CAIRO_OPERATOR_MULTIPLY: + return PIXMAN_OP_MULTIPLY; + case CAIRO_OPERATOR_SCREEN: + return PIXMAN_OP_SCREEN; + case CAIRO_OPERATOR_OVERLAY: + return PIXMAN_OP_OVERLAY; + case CAIRO_OPERATOR_DARKEN: + return PIXMAN_OP_DARKEN; + case CAIRO_OPERATOR_LIGHTEN: + return PIXMAN_OP_LIGHTEN; + case CAIRO_OPERATOR_COLOR_DODGE: + return PIXMAN_OP_COLOR_DODGE; + case CAIRO_OPERATOR_COLOR_BURN: + return PIXMAN_OP_COLOR_BURN; + case CAIRO_OPERATOR_HARD_LIGHT: + return PIXMAN_OP_HARD_LIGHT; + case CAIRO_OPERATOR_SOFT_LIGHT: + return PIXMAN_OP_SOFT_LIGHT; + case CAIRO_OPERATOR_DIFFERENCE: + return PIXMAN_OP_DIFFERENCE; + case CAIRO_OPERATOR_EXCLUSION: + return PIXMAN_OP_EXCLUSION; + case CAIRO_OPERATOR_HSL_HUE: + return PIXMAN_OP_HSL_HUE; + case CAIRO_OPERATOR_HSL_SATURATION: + return PIXMAN_OP_HSL_SATURATION; + case CAIRO_OPERATOR_HSL_COLOR: + return PIXMAN_OP_HSL_COLOR; + case CAIRO_OPERATOR_HSL_LUMINOSITY: + return PIXMAN_OP_HSL_LUMINOSITY; + + default: + ASSERT_NOT_REACHED; + return PIXMAN_OP_OVER; + } +} + +static cairo_int_status_t +composite (void *_dst, + cairo_operator_t op, + cairo_surface_t *abstract_src, + cairo_surface_t *abstract_mask, + int src_x, + int src_y, + int mask_x, + int mask_y, + int dst_x, + int dst_y, + unsigned int width, + unsigned int height) +{ + cairo_image_surface_t *dst = _dst; + cairo_pixman_source_t *src = (cairo_pixman_source_t *)abstract_src; + cairo_pixman_source_t *mask = (cairo_pixman_source_t *)abstract_mask; + if (mask) { + pixman_image_composite32 (_pixman_operator (op), + src->pixman_image, mask->pixman_image, dst->pixman_image, + src_x, src_y, + mask_x, mask_y, + dst_x, dst_y, + width, height); + } else { + pixman_image_composite32 (_pixman_operator (op), + src->pixman_image, NULL, dst->pixman_image, + src_x, src_y, + 0, 0, + dst_x, dst_y, + width, height); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +composite_boxes (void *_dst, + cairo_operator_t op, + cairo_surface_t *abstract_src, + cairo_surface_t *abstract_mask, + int src_x, + int src_y, + int mask_x, + int mask_y, + int dst_x, + int dst_y, + cairo_boxes_t *boxes) +{ + cairo_image_surface_t *dst = _dst; + cairo_pixman_source_t *src = (cairo_pixman_source_t *)abstract_src; + cairo_pixman_source_t *mask = (cairo_pixman_source_t *)abstract_mask; + struct _cairo_boxes_chunk *chunk; + int i; + + assert (boxes->is_pixel_aligned); + + op = _pixman_operator (op); + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + int x1 = _cairo_fixed_integer_part (chunk->base[i].p1.x); + int y1 = _cairo_fixed_integer_part (chunk->base[i].p1.y); + int x2 = _cairo_fixed_integer_part (chunk->base[i].p2.x); + int y2 = _cairo_fixed_integer_part (chunk->base[i].p2.y); + + if (mask) { + pixman_image_composite32 (op, + src->pixman_image, mask->pixman_image, dst->pixman_image, + x1 + src_x, y1 + src_y, + x1 + mask_x, y1 + mask_y, + x1 + dst_x, y1 + dst_y, + x2 - x1, y2 - y1); + } else { + pixman_image_composite32 (op, + src->pixman_image, NULL, dst->pixman_image, + x1 + src_x, y1 + src_y, + 0, 0, + x1 + dst_x, y1 + dst_y, + x2 - x1, y2 - y1); + } + } + } + + return CAIRO_STATUS_SUCCESS; +} + +const cairo_compositor_t * +_cairo_image_mask_compositor_get (void) +{ + static cairo_atomic_once_t once = CAIRO_ATOMIC_ONCE_INIT; + static cairo_mask_compositor_t compositor; + + if (_cairo_atomic_init_once_enter(&once)) { + _cairo_mask_compositor_init (&compositor, + _cairo_image_traps_compositor_get ()); + compositor.acquire = acquire; + compositor.release = release; + compositor.set_clip_region = set_clip_region; + compositor.pattern_to_surface = _cairo_pixman_source_create_for_pattern; + compositor.has_snapshot = has_snapshot; + compositor.draw_image = draw_image; + compositor.fill_rectangles = fill_rectangles; + compositor.fill_boxes = fill_boxes; +#error check_composite must never be NULL, because it gets called without a NULL pointer check + //compositor.check_composite = check_composite; + compositor.composite = composite; + //compositor.check_composite_boxes = check_composite_boxes; + compositor.composite_boxes = composite_boxes; + + _cairo_atomic_init_once_leave(&once); + } + + return &compositor.base; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-image-source.c b/local/recipes/libs/cairo/source/src/cairo-image-source.c new file mode 100644 index 0000000000..eaf72e2cc9 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-image-source.c @@ -0,0 +1,1652 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2003 University of Southern California + * Copyright © 2009,2010,2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +/* The purpose of this file/surface is to simply translate a pattern + * to a pixman_image_t and thence to feed it back to the general + * compositor interface. + */ + +#include "cairoint.h" + +#include "cairo-image-surface-private.h" + +#include "cairo-compositor-private.h" +#include "cairo-error-private.h" +#include "cairo-pattern-inline.h" +#include "cairo-paginated-private.h" +#include "cairo-recording-surface-private.h" +#include "cairo-surface-observer-private.h" +#include "cairo-surface-snapshot-inline.h" +#include "cairo-surface-subsurface-private.h" + +#define PIXMAN_MAX_INT ((pixman_fixed_1 >> 1) - pixman_fixed_e) /* need to ensure deltas also fit */ + +#if CAIRO_NO_MUTEX +#define PIXMAN_HAS_ATOMIC_OPS 1 +#endif + +#if PIXMAN_HAS_ATOMIC_OPS +static pixman_image_t *__pixman_transparent_image; +static pixman_image_t *__pixman_black_image; +static pixman_image_t *__pixman_white_image; + +static pixman_image_t * +_pixman_transparent_image (void) +{ + pixman_image_t *image; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + image = __pixman_transparent_image; + if (unlikely (image == NULL)) { + pixman_color_t color; + + color.red = 0x00; + color.green = 0x00; + color.blue = 0x00; + color.alpha = 0x00; + + image = pixman_image_create_solid_fill (&color); + if (unlikely (image == NULL)) + return NULL; + + if (_cairo_atomic_ptr_cmpxchg (&__pixman_transparent_image, + NULL, image)) + { + pixman_image_ref (image); + } + } else { + pixman_image_ref (image); + } + + return image; +} + +static pixman_image_t * +_pixman_black_image (void) +{ + pixman_image_t *image; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + image = __pixman_black_image; + if (unlikely (image == NULL)) { + pixman_color_t color; + + color.red = 0x00; + color.green = 0x00; + color.blue = 0x00; + color.alpha = 0xffff; + + image = pixman_image_create_solid_fill (&color); + if (unlikely (image == NULL)) + return NULL; + + if (_cairo_atomic_ptr_cmpxchg (&__pixman_black_image, + NULL, image)) + { + pixman_image_ref (image); + } + } else { + pixman_image_ref (image); + } + + return image; +} + +static pixman_image_t * +_pixman_white_image (void) +{ + pixman_image_t *image; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + image = __pixman_white_image; + if (unlikely (image == NULL)) { + pixman_color_t color; + + color.red = 0xffff; + color.green = 0xffff; + color.blue = 0xffff; + color.alpha = 0xffff; + + image = pixman_image_create_solid_fill (&color); + if (unlikely (image == NULL)) + return NULL; + + if (_cairo_atomic_ptr_cmpxchg (&__pixman_white_image, + NULL, image)) + { + pixman_image_ref (image); + } + } else { + pixman_image_ref (image); + } + + return image; +} + +static uint32_t +hars_petruska_f54_1_random (void) +{ +#define rol(x,k) ((x << k) | (x >> (32-k))) + static uint32_t x; + return x = (x ^ rol (x, 5) ^ rol (x, 24)) + 0x37798849; +#undef rol +} + +static struct { + cairo_color_t color; + pixman_image_t *image; +} cache[16]; +static int n_cached; + +#else /* !PIXMAN_HAS_ATOMIC_OPS */ +static pixman_image_t * +_pixman_transparent_image (void) +{ + TRACE ((stderr, "%s\n", __FUNCTION__)); + return _pixman_image_for_color (CAIRO_COLOR_TRANSPARENT); +} + +static pixman_image_t * +_pixman_black_image (void) +{ + TRACE ((stderr, "%s\n", __FUNCTION__)); + return _pixman_image_for_color (CAIRO_COLOR_BLACK); +} + +static pixman_image_t * +_pixman_white_image (void) +{ + TRACE ((stderr, "%s\n", __FUNCTION__)); + return _pixman_image_for_color (CAIRO_COLOR_WHITE); +} +#endif /* !PIXMAN_HAS_ATOMIC_OPS */ + + +pixman_image_t * +_pixman_image_for_color (const cairo_color_t *cairo_color) +{ + pixman_color_t color; + pixman_image_t *image; + +#if PIXMAN_HAS_ATOMIC_OPS + int i; + + if (CAIRO_COLOR_IS_CLEAR (cairo_color)) + return _pixman_transparent_image (); + + if (CAIRO_COLOR_IS_OPAQUE (cairo_color)) { + if (cairo_color->red_short <= 0x00ff && + cairo_color->green_short <= 0x00ff && + cairo_color->blue_short <= 0x00ff) + { + return _pixman_black_image (); + } + + if (cairo_color->red_short >= 0xff00 && + cairo_color->green_short >= 0xff00 && + cairo_color->blue_short >= 0xff00) + { + return _pixman_white_image (); + } + } + + CAIRO_MUTEX_LOCK (_cairo_image_solid_cache_mutex); + for (i = 0; i < n_cached; i++) { + if (_cairo_color_equal (&cache[i].color, cairo_color)) { + image = pixman_image_ref (cache[i].image); + goto UNLOCK; + } + } +#endif + + color.red = cairo_color->red_short; + color.green = cairo_color->green_short; + color.blue = cairo_color->blue_short; + color.alpha = cairo_color->alpha_short; + + image = pixman_image_create_solid_fill (&color); +#if PIXMAN_HAS_ATOMIC_OPS + if (image == NULL) + goto UNLOCK; + + if (n_cached < ARRAY_LENGTH (cache)) { + i = n_cached++; + } else { + i = hars_petruska_f54_1_random () % ARRAY_LENGTH (cache); + pixman_image_unref (cache[i].image); + } + cache[i].image = pixman_image_ref (image); + cache[i].color = *cairo_color; + +UNLOCK: + CAIRO_MUTEX_UNLOCK (_cairo_image_solid_cache_mutex); +#endif + return image; +} + + +void +_cairo_image_reset_static_data (void) +{ +#if PIXMAN_HAS_ATOMIC_OPS + while (n_cached) + pixman_image_unref (cache[--n_cached].image); + + if (__pixman_transparent_image) { + pixman_image_unref (__pixman_transparent_image); + __pixman_transparent_image = NULL; + } + + if (__pixman_black_image) { + pixman_image_unref (__pixman_black_image); + __pixman_black_image = NULL; + } + + if (__pixman_white_image) { + pixman_image_unref (__pixman_white_image); + __pixman_white_image = NULL; + } +#endif +} + +static pixman_image_t * +_pixman_image_for_gradient (const cairo_gradient_pattern_t *pattern, + const cairo_rectangle_int_t *extents, + int *ix, int *iy) +{ + pixman_image_t *pixman_image; + pixman_gradient_stop_t pixman_stops_static[2]; + pixman_gradient_stop_t *pixman_stops = pixman_stops_static; + pixman_transform_t pixman_transform; + cairo_matrix_t matrix; + cairo_circle_double_t extremes[2]; + pixman_point_fixed_t p1, p2; + unsigned int i; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (pattern->n_stops > ARRAY_LENGTH(pixman_stops_static)) { + pixman_stops = _cairo_malloc_ab (pattern->n_stops, + sizeof(pixman_gradient_stop_t)); + if (unlikely (pixman_stops == NULL)) + return NULL; + } + + for (i = 0; i < pattern->n_stops; i++) { + pixman_stops[i].x = _cairo_fixed_16_16_from_double (pattern->stops[i].offset); + pixman_stops[i].color.red = pattern->stops[i].color.red_short; + pixman_stops[i].color.green = pattern->stops[i].color.green_short; + pixman_stops[i].color.blue = pattern->stops[i].color.blue_short; + pixman_stops[i].color.alpha = pattern->stops[i].color.alpha_short; + } + + _cairo_gradient_pattern_fit_to_range (pattern, PIXMAN_MAX_INT >> 1, &matrix, extremes); + + p1.x = _cairo_fixed_16_16_from_double (extremes[0].center.x); + p1.y = _cairo_fixed_16_16_from_double (extremes[0].center.y); + p2.x = _cairo_fixed_16_16_from_double (extremes[1].center.x); + p2.y = _cairo_fixed_16_16_from_double (extremes[1].center.y); + + if (pattern->base.type == CAIRO_PATTERN_TYPE_LINEAR) { + pixman_image = pixman_image_create_linear_gradient (&p1, &p2, + pixman_stops, + pattern->n_stops); + } else { + pixman_fixed_t r1, r2; + + r1 = _cairo_fixed_16_16_from_double (extremes[0].radius); + r2 = _cairo_fixed_16_16_from_double (extremes[1].radius); + + pixman_image = pixman_image_create_radial_gradient (&p1, &p2, r1, r2, + pixman_stops, + pattern->n_stops); + } + + if (pixman_stops != pixman_stops_static) + free (pixman_stops); + + if (unlikely (pixman_image == NULL)) + return NULL; + + *ix = *iy = 0; + status = _cairo_matrix_to_pixman_matrix_offset (&matrix, pattern->base.filter, + extents->x + extents->width/2., + extents->y + extents->height/2., + &pixman_transform, ix, iy); + if (status != CAIRO_INT_STATUS_NOTHING_TO_DO) { + if (unlikely (status != CAIRO_INT_STATUS_SUCCESS) || + ! pixman_image_set_transform (pixman_image, &pixman_transform)) + { + pixman_image_unref (pixman_image); + return NULL; + } + } + + { + pixman_repeat_t pixman_repeat; + + switch (pattern->base.extend) { + default: + case CAIRO_EXTEND_NONE: + pixman_repeat = PIXMAN_REPEAT_NONE; + break; + case CAIRO_EXTEND_REPEAT: + pixman_repeat = PIXMAN_REPEAT_NORMAL; + break; + case CAIRO_EXTEND_REFLECT: + pixman_repeat = PIXMAN_REPEAT_REFLECT; + break; + case CAIRO_EXTEND_PAD: + pixman_repeat = PIXMAN_REPEAT_PAD; + break; + } + + pixman_image_set_repeat (pixman_image, pixman_repeat); + } + + return pixman_image; +} + +static pixman_image_t * +_pixman_image_for_mesh (const cairo_mesh_pattern_t *pattern, + const cairo_rectangle_int_t *extents, + int *tx, int *ty) +{ + pixman_image_t *image; + int width, height; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + *tx = -extents->x; + *ty = -extents->y; + width = extents->width; + height = extents->height; + + image = pixman_image_create_bits (PIXMAN_a8r8g8b8, width, height, NULL, 0); + if (unlikely (image == NULL)) + return NULL; + + _cairo_mesh_pattern_rasterize (pattern, + pixman_image_get_data (image), + width, height, + pixman_image_get_stride (image), + *tx, *ty); + return image; +} + +struct acquire_source_cleanup { + cairo_surface_t *surface; + cairo_image_surface_t *image; + void *image_extra; +}; + +static void +_acquire_source_cleanup (pixman_image_t *pixman_image, + void *closure) +{ + struct acquire_source_cleanup *data = closure; + + _cairo_surface_release_source_image (data->surface, + data->image, + data->image_extra); + free (data); +} + +static void +_defer_free_cleanup (pixman_image_t *pixman_image, + void *closure) +{ + cairo_surface_destroy (closure); +} + +static uint16_t +expand_channel (uint16_t v, uint32_t bits) +{ + int offset = 16 - bits; + while (offset > 0) { + v |= v >> bits; + offset -= bits; + bits += bits; + } + return v; +} + +static pixman_image_t * +_pixel_to_solid (cairo_image_surface_t *image, int x, int y) +{ + uint32_t pixel; + float *rgba; + pixman_color_t color; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + switch (image->format) { + default: + case CAIRO_FORMAT_INVALID: + ASSERT_NOT_REACHED; + return NULL; + + case CAIRO_FORMAT_A1: + pixel = *(uint8_t *) (image->data + y * image->stride + x/8); + return pixel & (1 << (x&7)) ? _pixman_black_image () : _pixman_transparent_image (); + + case CAIRO_FORMAT_A8: + color.alpha = *(uint8_t *) (image->data + y * image->stride + x); + color.alpha |= color.alpha << 8; + if (color.alpha == 0) + return _pixman_transparent_image (); + if (color.alpha == 0xffff) + return _pixman_black_image (); + + color.red = color.green = color.blue = 0; + return pixman_image_create_solid_fill (&color); + + case CAIRO_FORMAT_RGB16_565: + pixel = *(uint16_t *) (image->data + y * image->stride + 2 * x); + if (pixel == 0) + return _pixman_black_image (); + if (pixel == 0xffff) + return _pixman_white_image (); + + color.alpha = 0xffff; + color.red = expand_channel ((pixel >> 11 & 0x1f) << 11, 5); + color.green = expand_channel ((pixel >> 5 & 0x3f) << 10, 6); + color.blue = expand_channel ((pixel & 0x1f) << 11, 5); + return pixman_image_create_solid_fill (&color); + + case CAIRO_FORMAT_RGB30: + pixel = *(uint32_t *) (image->data + y * image->stride + 4 * x); + pixel &= 0x3fffffff; /* ignore alpha bits */ + if (pixel == 0) + return _pixman_black_image (); + if (pixel == 0x3fffffff) + return _pixman_white_image (); + + /* convert 10bpc to 16bpc */ + color.alpha = 0xffff; + color.red = expand_channel((pixel >> 20) & 0x3fff, 10); + color.green = expand_channel((pixel >> 10) & 0x3fff, 10); + color.blue = expand_channel(pixel & 0x3fff, 10); + return pixman_image_create_solid_fill (&color); + + case CAIRO_FORMAT_ARGB32: + case CAIRO_FORMAT_RGB24: + pixel = *(uint32_t *) (image->data + y * image->stride + 4 * x); + color.alpha = image->format == CAIRO_FORMAT_ARGB32 ? (pixel >> 24) | (pixel >> 16 & 0xff00) : 0xffff; + if (color.alpha == 0) + return _pixman_transparent_image (); + if (pixel == 0xffffffff) + return _pixman_white_image (); + if (color.alpha == 0xffff && (pixel & 0xffffff) == 0) + return _pixman_black_image (); + + color.red = (pixel >> 16 & 0xff) | (pixel >> 8 & 0xff00); + color.green = (pixel >> 8 & 0xff) | (pixel & 0xff00); + color.blue = (pixel & 0xff) | (pixel << 8 & 0xff00); + return pixman_image_create_solid_fill (&color); + + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGBA128F: + if (image->format == CAIRO_FORMAT_RGBA128F) + { + rgba = (float *)&image->data[y * image->stride + 16 * x]; + color.alpha = 65535.f * rgba[3]; + + if (color.alpha == 0) + return _pixman_transparent_image (); + } + else + { + rgba = (float *)&image->data[y * image->stride + 12 * x]; + color.alpha = 0xffff; + } + + if (color.alpha == 0xffff && rgba[0] == 0.f && rgba[1] == 0.f && rgba[2] == 0.f) + return _pixman_black_image (); + if (color.alpha == 0xffff && rgba[0] == 1.f && rgba[1] == 1.f && rgba[2] == 1.f) + return _pixman_white_image (); + + color.red = rgba[0] * 65535.f; + color.green = rgba[1] * 65535.f; + color.blue = rgba[2] * 65535.f; + return pixman_image_create_solid_fill (&color); + } +} + +/* ========================================================================== */ + +/* Index into filter table */ +typedef enum +{ + KERNEL_IMPULSE, + KERNEL_BOX, + KERNEL_LINEAR, + KERNEL_MITCHELL, + KERNEL_NOTCH, + KERNEL_CATMULL_ROM, + KERNEL_LANCZOS3, + KERNEL_LANCZOS3_STRETCHED, + KERNEL_TENT +} kernel_t; + +/* Produce contribution of a filter of size r for pixel centered on x. + For a typical low-pass function this evaluates the function at x/r. + If the frequency is higher than 1/2, such as when r is less than 1, + this may need to integrate several samples, see cubic for examples. +*/ +typedef double (* kernel_func_t) (double x, double r); + +/* Return maximum number of pixels that will be non-zero. Except for + impluse this is the maximum of 2 and the width of the non-zero part + of the filter rounded up to the next integer. +*/ +typedef int (* kernel_width_func_t) (double r); + +/* Table of filters */ +typedef struct +{ + kernel_t kernel; + kernel_func_t func; + kernel_width_func_t width; +} filter_info_t; + +/* PIXMAN_KERNEL_IMPULSE: Returns pixel nearest the center. This + matches PIXMAN_FILTER_NEAREST. This is useful if you wish to + combine the result of nearest in one direction with another filter + in the other. +*/ + +static double +impulse_kernel (double x, double r) +{ + return 1; +} + +static int +impulse_width (double r) +{ + return 1; +} + +/* PIXMAN_KERNEL_BOX: Intersection of a box of width r with square + pixels. This is the smallest possible filter such that the output + image contains an equal contribution from all the input + pixels. Lots of software uses this. The function is a trapazoid of + width r+1, not a box. + + When r == 1.0, PIXMAN_KERNEL_BOX, PIXMAN_KERNEL_LINEAR, and + PIXMAN_KERNEL_TENT all produce the same filter, allowing + them to be exchanged at this point. +*/ + +static double +box_kernel (double x, double r) +{ + return MAX (0.0, MIN (MIN (r, 1.0), + MIN ((r + 1) / 2 - x, (r + 1) / 2 + x))); +} + +static int +box_width (double r) +{ + return r < 1.0 ? 2 : ceil(r + 1); +} + +/* PIXMAN_KERNEL_LINEAR: Weighted sum of the two pixels nearest the + center, or a triangle of width 2. This matches + PIXMAN_FILTER_BILINEAR. This is useful if you wish to combine the + result of bilinear in one direction with another filter in the + other. This is not a good filter if r > 1. You may actually want + PIXMAN_FILTER_TENT. + + When r == 1.0, PIXMAN_KERNEL_BOX, PIXMAN_KERNEL_LINEAR, and + PIXMAN_KERNEL_TENT all produce the same filter, allowing + them to be exchanged at this point. +*/ + +static double +linear_kernel (double x, double r) +{ + return MAX (1.0 - fabs(x), 0.0); +} + +static int +linear_width (double r) +{ + return 2; +} + +/* Cubic functions described in the Mitchell-Netravali paper. + http://mentallandscape.com/Papers_siggraph88.pdf. This describes + all possible cubic functions that can be used for sampling. +*/ + +static double +general_cubic (double x, double r, double B, double C) +{ + double ax; + if (r < 1.0) + return + general_cubic(x * 2 - .5, r * 2, B, C) + + general_cubic(x * 2 + .5, r * 2, B, C); + + ax = fabs (x / r); + + if (ax < 1) + { + return (((12 - 9 * B - 6 * C) * ax + + (-18 + 12 * B + 6 * C)) * ax * ax + + (6 - 2 * B)) / 6; + } + else if (ax < 2) + { + return ((((-B - 6 * C) * ax + + (6 * B + 30 * C)) * ax + + (-12 * B - 48 * C)) * ax + + (8 * B + 24 * C)) / 6; + } + else + { + return 0.0; + } +} + +static int +cubic_width (double r) +{ + return MAX (2, ceil (r * 4)); +} + +/* PIXMAN_KERNEL_CATMULL_ROM: Catmull-Rom interpolation. Often called + "cubic interpolation", "b-spline", or just "cubic" by other + software. This filter has negative values so it can produce ringing + and output pixels outside the range of input pixels. This is very + close to lanczos2 so there is no reason to supply that as well. +*/ + +static double +cubic_kernel (double x, double r) +{ + return general_cubic (x, r, 0.0, 0.5); +} + +/* PIXMAN_KERNEL_MITCHELL: Cubic recommended by the Mitchell-Netravali + paper. This has negative values and because the values at +/-1 are + not zero it does not interpolate the pixels, meaning it will change + an image even if there is no translation. +*/ + +static double +mitchell_kernel (double x, double r) +{ + return general_cubic (x, r, 1/3.0, 1/3.0); +} + +/* PIXMAN_KERNEL_NOTCH: Cubic recommended by the Mitchell-Netravali + paper to remove postaliasing artifacts. This does not remove + aliasing already present in the source image, though it may appear + to due to it's excessive blurriness. In any case this is more + useful than gaussian for image reconstruction. +*/ + +static double +notch_kernel (double x, double r) +{ + return general_cubic (x, r, 1.5, -0.25); +} + +/* PIXMAN_KERNEL_LANCZOS3: lanczos windowed sinc function from -3 to + +3. Very popular with high-end software though I think any + advantage over cubics is hidden by quantization and programming + mistakes. You will see LANCZOS5 or even 7 sometimes. +*/ + +static double +sinc (double x) +{ + return x ? sin (M_PI * x) / (M_PI * x) : 1.0; +} + +static double +lanczos (double x, double n) +{ + return fabs (x) < n ? sinc (x) * sinc (x * (1.0 / n)) : 0.0; +} + +static double +lanczos3_kernel (double x, double r) +{ + if (r < 1.0) + return + lanczos3_kernel (x * 2 - .5, r * 2) + + lanczos3_kernel (x * 2 + .5, r * 2); + else + return lanczos (x / r, 3.0); +} + +static int +lanczos3_width (double r) +{ + return MAX (2, ceil (r * 6)); +} + +/* PIXMAN_KERNEL_LANCZOS3_STRETCHED - The LANCZOS3 kernel widened by + 4/3. Recommended by Jim Blinn + http://graphics.cs.cmu.edu/nsp/course/15-462/Fall07/462/papers/jaggy.pdf +*/ + +static double +nice_kernel (double x, double r) +{ + return lanczos3_kernel (x, r * (4.0/3)); +} + +static int +nice_width (double r) +{ + return MAX (2.0, ceil (r * 8)); +} + +/* PIXMAN_KERNEL_TENT: Triangle of width 2r. Lots of software uses + this as a "better" filter, twice the size of a box but smaller than + a cubic. + + When r == 1.0, PIXMAN_KERNEL_BOX, PIXMAN_KERNEL_LINEAR, and + PIXMAN_KERNEL_TENT all produce the same filter, allowing + them to be exchanged at this point. +*/ + +static double +tent_kernel (double x, double r) +{ + if (r < 1.0) + return box_kernel(x, r); + else + return MAX (1.0 - fabs(x / r), 0.0); +} + +static int +tent_width (double r) +{ + return r < 1.0 ? 2 : ceil(2 * r); +} + + +static const filter_info_t filters[] = +{ + { KERNEL_IMPULSE, impulse_kernel, impulse_width }, + { KERNEL_BOX, box_kernel, box_width }, + { KERNEL_LINEAR, linear_kernel, linear_width }, + { KERNEL_MITCHELL, mitchell_kernel, cubic_width }, + { KERNEL_NOTCH, notch_kernel, cubic_width }, + { KERNEL_CATMULL_ROM, cubic_kernel, cubic_width }, + { KERNEL_LANCZOS3, lanczos3_kernel, lanczos3_width }, + { KERNEL_LANCZOS3_STRETCHED,nice_kernel, nice_width }, + { KERNEL_TENT, tent_kernel, tent_width } +}; + +/* Fills in one dimension of the filter array */ +static void get_filter(kernel_t filter, double r, + int width, int subsample, + pixman_fixed_t* out) +{ + int i; + pixman_fixed_t *p = out; + int n_phases = 1 << subsample; + double step = 1.0 / n_phases; + kernel_func_t func = filters[filter].func; + + /* special-case the impulse filter: */ + if (width <= 1) + { + for (i = 0; i < n_phases; ++i) + *p++ = pixman_fixed_1; + return; + } + + for (i = 0; i < n_phases; ++i) + { + double frac = (i + .5) * step; + /* Center of left-most pixel: */ + double x1 = ceil (frac - width / 2.0 - 0.5) - frac + 0.5; + double total = 0; + pixman_fixed_t new_total = 0; + int j; + + for (j = 0; j < width; ++j) + { + double v = func(x1 + j, r); + total += v; + p[j] = pixman_double_to_fixed (v); + } + + /* Normalize */ + total = 1 / total; + for (j = 0; j < width; ++j) + new_total += (p[j] *= total); + + /* Put any error on center pixel */ + p[width / 2] += (pixman_fixed_1 - new_total); + + p += width; + } +} + + +/* Create the parameter list for a SEPARABLE_CONVOLUTION filter + * with the given kernels and scale parameters. + */ +static pixman_fixed_t * +create_separable_convolution (int *n_values, + kernel_t xfilter, + double sx, + kernel_t yfilter, + double sy) +{ + int xwidth, xsubsample, ywidth, ysubsample, size_x, size_y; + pixman_fixed_t *params; + + xwidth = filters[xfilter].width(sx); + xsubsample = 0; + if (xwidth > 1) + while (sx * (1 << xsubsample) <= 128.0) xsubsample++; + size_x = (1 << xsubsample) * xwidth; + + ywidth = filters[yfilter].width(sy); + ysubsample = 0; + if (ywidth > 1) + while (sy * (1 << ysubsample) <= 128.0) ysubsample++; + size_y = (1 << ysubsample) * ywidth; + + *n_values = 4 + size_x + size_y; + params = _cairo_malloc (*n_values * sizeof (pixman_fixed_t)); + if (!params) return 0; + + params[0] = pixman_int_to_fixed (xwidth); + params[1] = pixman_int_to_fixed (ywidth); + params[2] = pixman_int_to_fixed (xsubsample); + params[3] = pixman_int_to_fixed (ysubsample); + + get_filter(xfilter, sx, xwidth, xsubsample, params + 4); + get_filter(yfilter, sy, ywidth, ysubsample, params + 4 + size_x); + + return params; +} + +/* ========================================================================== */ + +static cairo_bool_t +_pixman_image_set_properties (pixman_image_t *pixman_image, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents, + int *ix,int *iy) +{ + pixman_transform_t pixman_transform; + cairo_int_status_t status; + + status = _cairo_matrix_to_pixman_matrix_offset (&pattern->matrix, + pattern->filter, + extents->x + extents->width/2., + extents->y + extents->height/2., + &pixman_transform, ix, iy); + if (status == CAIRO_INT_STATUS_NOTHING_TO_DO) + { + /* If the transform is an identity, we don't need to set it + * and we can use any filtering, so choose the fastest one. */ + pixman_image_set_filter (pixman_image, PIXMAN_FILTER_NEAREST, NULL, 0); + } + else if (unlikely (status != CAIRO_INT_STATUS_SUCCESS || + ! pixman_image_set_transform (pixman_image, + &pixman_transform))) + { + return FALSE; + } + else + { + pixman_filter_t pixman_filter; + kernel_t kernel; + double dx, dy; + + /* Compute scale factors from the pattern matrix. These scale + * factors are from user to pattern space, and as such they + * are greater than 1.0 for downscaling and less than 1.0 for + * upscaling. The factors are the size of an axis-aligned + * rectangle with the same area as the parallelgram a 1x1 + * square transforms to. + */ + dx = hypot (pattern->matrix.xx, pattern->matrix.xy); + dy = hypot (pattern->matrix.yx, pattern->matrix.yy); + + /* Clip at maximum pixman_fixed number. Besides making it + * passable to pixman, this avoids errors from inf and nan. + */ + if (! (dx < 0x7FFF)) dx = 0x7FFF; + if (! (dy < 0x7FFF)) dy = 0x7FFF; + + switch (pattern->filter) { + case CAIRO_FILTER_FAST: + pixman_filter = PIXMAN_FILTER_FAST; + break; + case CAIRO_FILTER_GOOD: + pixman_filter = PIXMAN_FILTER_SEPARABLE_CONVOLUTION; + kernel = KERNEL_BOX; + /* Clip the filter size to prevent extreme slowness. This + value could be raised if 2-pass filtering is done */ + if (dx > 16.0) dx = 16.0; + if (dy > 16.0) dy = 16.0; + /* Match the bilinear filter for scales > .75: */ + if (dx < 1.0/0.75) dx = 1.0; + if (dy < 1.0/0.75) dy = 1.0; + break; + case CAIRO_FILTER_BEST: + pixman_filter = PIXMAN_FILTER_SEPARABLE_CONVOLUTION; + kernel = KERNEL_CATMULL_ROM; /* LANCZOS3 is better but not much */ + /* Clip the filter size to prevent extreme slowness. This + value could be raised if 2-pass filtering is done */ + if (dx > 16.0) { dx = 16.0; kernel = KERNEL_BOX; } + /* blur up to 2x scale, then blend to square pixels for larger: */ + else if (dx < 1.0) { + if (dx < 1.0/128) dx = 1.0/127; + else if (dx < 0.5) dx = 1.0 / (1.0 / dx - 1.0); + else dx = 1.0; + } + if (dy > 16.0) { dy = 16.0; kernel = KERNEL_BOX; } + else if (dy < 1.0) { + if (dy < 1.0/128) dy = 1.0/127; + else if (dy < 0.5) dy = 1.0 / (1.0 / dy - 1.0); + else dy = 1.0; + } + break; + case CAIRO_FILTER_NEAREST: + pixman_filter = PIXMAN_FILTER_NEAREST; + break; + case CAIRO_FILTER_BILINEAR: + pixman_filter = PIXMAN_FILTER_BILINEAR; + break; + case CAIRO_FILTER_GAUSSIAN: + /* XXX: The GAUSSIAN value has no implementation in cairo + * whatsoever, so it was really a mistake to have it in the + * API. We could fix this by officially deprecating it, or + * else inventing semantics and providing an actual + * implementation for it. */ + default: + pixman_filter = PIXMAN_FILTER_BEST; + } + + if (pixman_filter == PIXMAN_FILTER_SEPARABLE_CONVOLUTION) { + int n_params; + pixman_fixed_t *params; + params = create_separable_convolution + (&n_params, kernel, dx, kernel, dy); + pixman_image_set_filter (pixman_image, pixman_filter, + params, n_params); + free (params); + } else { + pixman_image_set_filter (pixman_image, pixman_filter, NULL, 0); + } + } + + { + pixman_repeat_t pixman_repeat; + + switch (pattern->extend) { + default: + case CAIRO_EXTEND_NONE: + pixman_repeat = PIXMAN_REPEAT_NONE; + break; + case CAIRO_EXTEND_REPEAT: + pixman_repeat = PIXMAN_REPEAT_NORMAL; + break; + case CAIRO_EXTEND_REFLECT: + pixman_repeat = PIXMAN_REPEAT_REFLECT; + break; + case CAIRO_EXTEND_PAD: + pixman_repeat = PIXMAN_REPEAT_PAD; + break; + } + + pixman_image_set_repeat (pixman_image, pixman_repeat); + } + + if (pattern->has_component_alpha) + pixman_image_set_component_alpha (pixman_image, TRUE); + + return TRUE; +} + +struct proxy { + cairo_surface_t base; + cairo_surface_t *image; +}; + +static cairo_status_t +proxy_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + struct proxy *proxy = abstract_surface; + return _cairo_surface_acquire_source_image (proxy->image, image_out, image_extra); +} + +static void +proxy_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *image_extra) +{ + struct proxy *proxy = abstract_surface; + _cairo_surface_release_source_image (proxy->image, image, image_extra); +} + +static cairo_status_t +proxy_finish (void *abstract_surface) +{ + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_surface_backend_t proxy_backend = { + CAIRO_INTERNAL_SURFACE_TYPE_NULL, + proxy_finish, + NULL, + + NULL, /* create similar */ + NULL, /* create similar image */ + NULL, /* map to image */ + NULL, /* unmap image */ + + _cairo_surface_default_source, + proxy_acquire_source_image, + proxy_release_source_image, +}; + +static cairo_surface_t * +attach_proxy (cairo_surface_t *source, + cairo_surface_t *image) +{ + struct proxy *proxy; + + proxy = _cairo_calloc (sizeof (*proxy)); + if (unlikely (proxy == NULL)) + return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_surface_init (&proxy->base, &proxy_backend, NULL, image->content, FALSE); + + proxy->image = image; + _cairo_surface_attach_snapshot (source, &proxy->base, NULL); + + return &proxy->base; +} + +static void +detach_proxy (cairo_surface_t *source, + cairo_surface_t *proxy) +{ + cairo_surface_finish (proxy); + cairo_surface_destroy (proxy); +} + +static cairo_surface_t * +get_proxy (cairo_surface_t *proxy) +{ + return ((struct proxy *)proxy)->image; +} + +static pixman_image_t * +_pixman_image_for_recording (cairo_image_surface_t *dst, + const cairo_surface_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *ix, int *iy) +{ + cairo_surface_t *source, *clone, *proxy; + cairo_rectangle_int_t limit; + cairo_rectangle_int_t src_limit; + pixman_image_t *pixman_image; + cairo_status_t status; + cairo_extend_t extend; + cairo_matrix_t *m, matrix; + double sx = 1.0, sy = 1.0; + int tx = 0, ty = 0; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + *ix = *iy = 0; + + source = _cairo_pattern_get_source (pattern, &limit); + src_limit = limit; + + extend = pattern->base.extend; + if (_cairo_rectangle_contains_rectangle (&limit, sample)) + extend = CAIRO_EXTEND_NONE; + + if (extend == CAIRO_EXTEND_NONE) { + if (! _cairo_rectangle_intersect (&limit, sample)) + return _pixman_transparent_image (); + } + + if (! _cairo_matrix_is_identity (&pattern->base.matrix)) { + double x1, y1, x2, y2; + + matrix = pattern->base.matrix; + status = cairo_matrix_invert (&matrix); + assert (status == CAIRO_STATUS_SUCCESS); + + x1 = limit.x; + y1 = limit.y; + x2 = limit.x + limit.width; + y2 = limit.y + limit.height; + + _cairo_matrix_transform_bounding_box (&matrix, + &x1, &y1, &x2, &y2, NULL); + + limit.x = floor (x1); + limit.y = floor (y1); + limit.width = ceil (x2) - limit.x; + limit.height = ceil (y2) - limit.y; + sx = (double)src_limit.width / limit.width; + sy = (double)src_limit.height / limit.height; + } + tx = limit.x; + ty = limit.y; + + /* XXX transformations! */ + proxy = _cairo_surface_has_snapshot (source, &proxy_backend); + if (proxy != NULL) { + clone = cairo_surface_reference (get_proxy (proxy)); + goto done; + } + + if (is_mask) { + clone = cairo_image_surface_create (CAIRO_FORMAT_A8, + limit.width, limit.height); + } else { + if (dst->base.content == source->content) + clone = cairo_image_surface_create (dst->format, + limit.width, limit.height); + else + clone = _cairo_image_surface_create_with_content (source->content, + limit.width, + limit.height); + if (dst->base.foreground_source) + clone->foreground_source = cairo_pattern_reference (dst->base.foreground_source); + } + + m = NULL; + if (extend == CAIRO_EXTEND_NONE) { + matrix = pattern->base.matrix; + if (tx | ty) + cairo_matrix_translate (&matrix, tx, ty); + m = &matrix; + } else { + cairo_matrix_init_scale (&matrix, sx, sy); + cairo_matrix_translate (&matrix, src_limit.x/sx, src_limit.y/sy); + m = &matrix; + } + + /* Handle recursion by returning future reads from the current image */ + proxy = attach_proxy (source, clone); + status = _cairo_recording_surface_replay_with_clip (source, m, clone, NULL); + if (clone->foreground_used) + dst->base.foreground_used = clone->foreground_used; + detach_proxy (source, proxy); + if (unlikely (status)) { + cairo_surface_destroy (clone); + return NULL; + } + +done: + pixman_image = pixman_image_ref (((cairo_image_surface_t *)clone)->pixman_image); + cairo_surface_destroy (clone); + + if (extend == CAIRO_EXTEND_NONE) { + *ix = -limit.x; + *iy = -limit.y; + } else { + cairo_pattern_union_t tmp_pattern; + _cairo_pattern_init_static_copy (&tmp_pattern.base, &pattern->base); + matrix = pattern->base.matrix; + status = cairo_matrix_invert(&matrix); + assert (status == CAIRO_STATUS_SUCCESS); + cairo_matrix_translate (&matrix, src_limit.x, src_limit.y); + cairo_matrix_scale (&matrix, sx, sy); + status = cairo_matrix_invert(&matrix); + assert (status == CAIRO_STATUS_SUCCESS); + cairo_pattern_set_matrix (&tmp_pattern.base, &matrix); + if (! _pixman_image_set_properties (pixman_image, + &tmp_pattern.base, extents, + ix, iy)) { + pixman_image_unref (pixman_image); + pixman_image= NULL; + } + } + + return pixman_image; +} + +static pixman_image_t * +_pixman_image_for_surface (cairo_image_surface_t *dst, + const cairo_surface_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *ix, int *iy) +{ + cairo_extend_t extend = pattern->base.extend; + pixman_image_t *pixman_image; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + *ix = *iy = 0; + pixman_image = NULL; + if (pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + return _pixman_image_for_recording(dst, pattern, + is_mask, extents, sample, + ix, iy); + + if (pattern->surface->type == CAIRO_SURFACE_TYPE_IMAGE && + (! is_mask || ! pattern->base.has_component_alpha || + (pattern->surface->content & CAIRO_CONTENT_COLOR) == 0)) + { + cairo_surface_t *defer_free = NULL; + cairo_image_surface_t *source = (cairo_image_surface_t *) pattern->surface; + cairo_surface_type_t type; + + if (_cairo_surface_is_snapshot (&source->base)) { + defer_free = _cairo_surface_snapshot_get_target (&source->base); + source = (cairo_image_surface_t *) defer_free; + } + + type = source->base.backend->type; + if (type == CAIRO_SURFACE_TYPE_IMAGE) { + if (extend != CAIRO_EXTEND_NONE && + sample->x >= 0 && + sample->y >= 0 && + sample->x + sample->width <= source->width && + sample->y + sample->height <= source->height) + { + extend = CAIRO_EXTEND_NONE; + } + + if (sample->width == 1 && sample->height == 1) { + if (sample->x < 0 || + sample->y < 0 || + sample->x >= source->width || + sample->y >= source->height) + { + if (extend == CAIRO_EXTEND_NONE) { + cairo_surface_destroy (defer_free); + return _pixman_transparent_image (); + } + } + else + { + pixman_image = _pixel_to_solid (source, + sample->x, sample->y); + if (pixman_image) { + cairo_surface_destroy (defer_free); + return pixman_image; + } + } + } + +#if PIXMAN_HAS_ATOMIC_OPS + /* avoid allocating a 'pattern' image if we can reuse the original */ + if (extend == CAIRO_EXTEND_NONE && + _cairo_matrix_is_pixman_translation (&pattern->base.matrix, + pattern->base.filter, + ix, iy)) + { + cairo_surface_destroy (defer_free); + return pixman_image_ref (source->pixman_image); + } +#endif + + pixman_image = pixman_image_create_bits (source->pixman_format, + source->width, + source->height, + (uint32_t *) source->data, + source->stride); + if (unlikely (pixman_image == NULL)) { + cairo_surface_destroy (defer_free); + return NULL; + } + + if (defer_free) { + pixman_image_set_destroy_function (pixman_image, + _defer_free_cleanup, + defer_free); + } + } else if (type == CAIRO_SURFACE_TYPE_SUBSURFACE) { + cairo_surface_subsurface_t *sub; + cairo_bool_t is_contained = FALSE; + + sub = (cairo_surface_subsurface_t *) source; + source = (cairo_image_surface_t *) sub->target; + + if (sample->x >= 0 && + sample->y >= 0 && + sample->x + sample->width <= sub->extents.width && + sample->y + sample->height <= sub->extents.height) + { + is_contained = TRUE; + } + + if (sample->width == 1 && sample->height == 1) { + if (is_contained) { + pixman_image = _pixel_to_solid (source, + sub->extents.x + sample->x, + sub->extents.y + sample->y); + if (pixman_image) + return pixman_image; + } else { + if (extend == CAIRO_EXTEND_NONE) + return _pixman_transparent_image (); + } + } + +#if PIXMAN_HAS_ATOMIC_OPS + *ix = sub->extents.x; + *iy = sub->extents.y; + if (is_contained && + _cairo_matrix_is_pixman_translation (&pattern->base.matrix, + pattern->base.filter, + ix, iy)) + { + return pixman_image_ref (source->pixman_image); + } +#endif + + /* Avoid sub-byte offsets, force a copy in that case. */ + if (PIXMAN_FORMAT_BPP (source->pixman_format) >= 8) { + if (is_contained) { + void *data = source->data + + sub->extents.x * PIXMAN_FORMAT_BPP(source->pixman_format)/8 + + sub->extents.y * source->stride; + pixman_image = pixman_image_create_bits (source->pixman_format, + sub->extents.width, + sub->extents.height, + data, + source->stride); + if (unlikely (pixman_image == NULL)) + return NULL; + } else { + /* XXX for a simple translation and EXTEND_NONE we can + * fix up the pattern matrix instead. + */ + } + } + } + } + + if (pixman_image == NULL) { + struct acquire_source_cleanup *cleanup; + cairo_image_surface_t *image; + void *extra; + cairo_status_t status; + + status = _cairo_surface_acquire_source_image (pattern->surface, &image, &extra); + if (unlikely (status)) + return NULL; + + pixman_image = pixman_image_create_bits (image->pixman_format, + image->width, + image->height, + (uint32_t *) image->data, + image->stride); + if (unlikely (pixman_image == NULL)) { + _cairo_surface_release_source_image (pattern->surface, image, extra); + return NULL; + } + + cleanup = _cairo_malloc (sizeof (*cleanup)); + if (unlikely (cleanup == NULL)) { + _cairo_surface_release_source_image (pattern->surface, image, extra); + pixman_image_unref (pixman_image); + return NULL; + } + + cleanup->surface = pattern->surface; + cleanup->image = image; + cleanup->image_extra = extra; + pixman_image_set_destroy_function (pixman_image, + _acquire_source_cleanup, cleanup); + } + + if (! _pixman_image_set_properties (pixman_image, + &pattern->base, extents, + ix, iy)) { + pixman_image_unref (pixman_image); + pixman_image= NULL; + } + + return pixman_image; +} + +struct raster_source_cleanup { + const cairo_pattern_t *pattern; + cairo_surface_t *surface; + cairo_image_surface_t *image; + void *image_extra; +}; + +static void +_raster_source_cleanup (pixman_image_t *pixman_image, + void *closure) +{ + struct raster_source_cleanup *data = closure; + + _cairo_surface_release_source_image (data->surface, + data->image, + data->image_extra); + + _cairo_raster_source_pattern_release (data->pattern, + data->surface); + + free (data); +} + +static pixman_image_t * +_pixman_image_for_raster (cairo_image_surface_t *dst, + const cairo_raster_source_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *ix, int *iy) +{ + pixman_image_t *pixman_image; + struct raster_source_cleanup *cleanup; + cairo_image_surface_t *image; + void *extra; + cairo_status_t status; + cairo_surface_t *surface; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + *ix = *iy = 0; + + surface = _cairo_raster_source_pattern_acquire (&pattern->base, + &dst->base, NULL); + if (unlikely (surface == NULL || surface->status)) + return NULL; + + status = _cairo_surface_acquire_source_image (surface, &image, &extra); + if (unlikely (status)) { + _cairo_raster_source_pattern_release (&pattern->base, surface); + return NULL; + } + + assert (image->width == pattern->extents.width); + assert (image->height == pattern->extents.height); + + pixman_image = pixman_image_create_bits (image->pixman_format, + image->width, + image->height, + (uint32_t *) image->data, + image->stride); + if (unlikely (pixman_image == NULL)) { + _cairo_surface_release_source_image (surface, image, extra); + _cairo_raster_source_pattern_release (&pattern->base, surface); + return NULL; + } + + cleanup = _cairo_calloc (sizeof (*cleanup)); + if (unlikely (cleanup == NULL)) { + pixman_image_unref (pixman_image); + _cairo_surface_release_source_image (surface, image, extra); + _cairo_raster_source_pattern_release (&pattern->base, surface); + return NULL; + } + + cleanup->pattern = &pattern->base; + cleanup->surface = surface; + cleanup->image = image; + cleanup->image_extra = extra; + pixman_image_set_destroy_function (pixman_image, + _raster_source_cleanup, cleanup); + + if (! _pixman_image_set_properties (pixman_image, + &pattern->base, extents, + ix, iy)) { + pixman_image_unref (pixman_image); + pixman_image= NULL; + } + + return pixman_image; +} + +pixman_image_t * +_pixman_image_for_pattern (cairo_image_surface_t *dst, + const cairo_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *tx, int *ty) +{ + *tx = *ty = 0; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (pattern == NULL) + return _pixman_white_image (); + + switch (pattern->type) { + default: + ASSERT_NOT_REACHED; + case CAIRO_PATTERN_TYPE_SOLID: + return _pixman_image_for_color (&((const cairo_solid_pattern_t *) pattern)->color); + + case CAIRO_PATTERN_TYPE_RADIAL: + case CAIRO_PATTERN_TYPE_LINEAR: + return _pixman_image_for_gradient ((const cairo_gradient_pattern_t *) pattern, + extents, tx, ty); + + case CAIRO_PATTERN_TYPE_MESH: + return _pixman_image_for_mesh ((const cairo_mesh_pattern_t *) pattern, + extents, tx, ty); + + case CAIRO_PATTERN_TYPE_SURFACE: + return _pixman_image_for_surface (dst, + (const cairo_surface_pattern_t *) pattern, + is_mask, extents, sample, + tx, ty); + + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + return _pixman_image_for_raster (dst, + (const cairo_raster_source_pattern_t *) pattern, + is_mask, extents, sample, + tx, ty); + } +} + +static cairo_status_t +_cairo_image_source_finish (void *abstract_surface) +{ + cairo_image_source_t *source = abstract_surface; + + pixman_image_unref (source->pixman_image); + return CAIRO_STATUS_SUCCESS; +} + +const cairo_surface_backend_t _cairo_image_source_backend = { + CAIRO_SURFACE_TYPE_IMAGE, + _cairo_image_source_finish, + NULL, /* read-only wrapper */ +}; + +cairo_surface_t * +_cairo_image_source_create_for_pattern (cairo_surface_t *dst, + const cairo_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *src_x, int *src_y) +{ + cairo_image_source_t *source; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + source = _cairo_calloc (sizeof (cairo_image_source_t)); + if (unlikely (source == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + source->pixman_image = + _pixman_image_for_pattern ((cairo_image_surface_t *)dst, + pattern, is_mask, + extents, sample, + src_x, src_y); + if (unlikely (source->pixman_image == NULL)) { + free (source); + return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); + } + + _cairo_surface_init (&source->base, + &_cairo_image_source_backend, + NULL, /* device */ + CAIRO_CONTENT_COLOR_ALPHA, + FALSE); /* is_vector */ + + source->is_opaque_solid = + pattern == NULL || _cairo_pattern_is_opaque_solid (pattern); + + return &source->base; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-image-surface-inline.h b/local/recipes/libs/cairo/source/src/cairo-image-surface-inline.h new file mode 100644 index 0000000000..743d5fd3e7 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-image-surface-inline.h @@ -0,0 +1,96 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_IMAGE_SURFACE_INLINE_H +#define CAIRO_IMAGE_SURFACE_INLINE_H + +#include "cairo-surface-private.h" +#include "cairo-image-surface-private.h" + +CAIRO_BEGIN_DECLS + +static inline cairo_image_surface_t * +_cairo_image_surface_create_in_error (cairo_status_t status) +{ + return (cairo_image_surface_t *) _cairo_surface_create_in_error (status); +} + +static inline void +_cairo_image_surface_set_parent (cairo_image_surface_t *image, + cairo_surface_t *parent) +{ + image->parent = parent; +} + +static inline cairo_bool_t +_cairo_image_surface_is_clone (cairo_image_surface_t *image) +{ + return image->parent != NULL; +} + +/** + * _cairo_surface_is_image: + * @surface: a #cairo_surface_t + * + * Checks if a surface is an #cairo_image_surface_t + * + * Return value: %TRUE if the surface is an image surface + **/ +static inline cairo_bool_t +_cairo_surface_is_image (const cairo_surface_t *surface) +{ + /* _cairo_surface_nil sets a NULL backend so be safe */ + return surface->backend && surface->backend->type == CAIRO_SURFACE_TYPE_IMAGE; +} + +/** + * _cairo_surface_is_image_source: + * @surface: a #cairo_surface_t + * + * Checks if a surface is an #cairo_image_source_t + * + * Return value: %TRUE if the surface is an image source + **/ +static inline cairo_bool_t +_cairo_surface_is_image_source (const cairo_surface_t *surface) +{ + return surface->backend == &_cairo_image_source_backend; +} + +CAIRO_END_DECLS + +#endif /* CAIRO_IMAGE_SURFACE_INLINE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-image-surface-private.h b/local/recipes/libs/cairo/source/src/cairo-image-surface-private.h new file mode 100644 index 0000000000..2b7921133f --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-image-surface-private.h @@ -0,0 +1,239 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_IMAGE_SURFACE_PRIVATE_H +#define CAIRO_IMAGE_SURFACE_PRIVATE_H + +#include "cairo-surface-private.h" + +#include +#include + +CAIRO_BEGIN_DECLS + +/* The canonical image backend */ +struct _cairo_image_surface { + cairo_surface_t base; + + pixman_image_t *pixman_image; + const cairo_compositor_t *compositor; + + /* Parenting is tricky wrt lifetime tracking... + * + * One use for tracking the parent of an image surface is for + * create_similar_image() where we wish to create a device specific + * surface but return an image surface to the user. In such a case, + * the image may be owned by the device specific surface, its parent, + * but the user lifetime tracking is then performed on the image. So + * when the image is then finalized we call cairo_surface_destroy() + * on the parent. However, for normal usage where the lifetime tracking + * is done on the parent surface, we need to be careful to unhook + * the image->parent pointer before finalizing the image. + */ + cairo_surface_t *parent; + + pixman_format_code_t pixman_format; + cairo_format_t format; + unsigned char *data; + + int width; + int height; + ptrdiff_t stride; + int depth; + + unsigned owns_data : 1; + unsigned transparency : 2; + unsigned color : 2; +}; +#define to_image_surface(S) ((cairo_image_surface_t *)(S)) + +/* A wrapper for holding pixman images returned by create_for_pattern */ +typedef struct _cairo_image_source { + cairo_surface_t base; + + pixman_image_t *pixman_image; + unsigned is_opaque_solid : 1; +} cairo_image_source_t; + +cairo_private extern const cairo_surface_backend_t _cairo_image_surface_backend; +cairo_private extern const cairo_surface_backend_t _cairo_image_source_backend; + +cairo_private const cairo_compositor_t * +_cairo_image_mask_compositor_get (void); + +cairo_private const cairo_compositor_t * +_cairo_image_traps_compositor_get (void); + +cairo_private const cairo_compositor_t * +_cairo_image_spans_compositor_get (void); + +#define _cairo_image_default_compositor_get _cairo_image_spans_compositor_get + +cairo_private cairo_int_status_t +_cairo_image_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip); + +cairo_private cairo_int_status_t +_cairo_image_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip); + +cairo_private cairo_int_status_t +_cairo_image_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip); + +cairo_private cairo_int_status_t +_cairo_image_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip); + +cairo_private cairo_int_status_t +_cairo_image_surface_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip); + +cairo_private void +_cairo_image_surface_init (cairo_image_surface_t *surface, + pixman_image_t *pixman_image, + pixman_format_code_t pixman_format); + +cairo_private cairo_surface_t * +_cairo_image_surface_create_similar (void *abstract_other, + cairo_content_t content, + int width, + int height); + +cairo_private cairo_image_surface_t * +_cairo_image_surface_map_to_image (void *abstract_other, + const cairo_rectangle_int_t *extents); + +cairo_private cairo_int_status_t +_cairo_image_surface_unmap_image (void *abstract_surface, + cairo_image_surface_t *image); + +cairo_private cairo_surface_t * +_cairo_image_surface_source (void *abstract_surface, + cairo_rectangle_int_t *extents); + +cairo_private cairo_status_t +_cairo_image_surface_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra); + +cairo_private void +_cairo_image_surface_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *image_extra); + +cairo_private cairo_surface_t * +_cairo_image_surface_snapshot (void *abstract_surface); + +cairo_private_no_warn cairo_bool_t +_cairo_image_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle); + +cairo_private void +_cairo_image_surface_get_font_options (void *abstract_surface, + cairo_font_options_t *options); + +cairo_private cairo_surface_t * +_cairo_image_source_create_for_pattern (cairo_surface_t *dst, + const cairo_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *src_x, int *src_y); + +cairo_private cairo_status_t +_cairo_image_surface_finish (void *abstract_surface); + +cairo_private pixman_image_t * +_pixman_image_for_color (const cairo_color_t *cairo_color); + +cairo_private pixman_image_t * +_pixman_image_for_pattern (cairo_image_surface_t *dst, + const cairo_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *tx, int *ty); + +cairo_private void +_pixman_image_add_traps (pixman_image_t *image, + int dst_x, int dst_y, + cairo_traps_t *traps); + +cairo_private void +_pixman_image_add_tristrip (pixman_image_t *image, + int dst_x, int dst_y, + cairo_tristrip_t *strip); + +cairo_private cairo_image_surface_t * +_cairo_image_surface_clone_subimage (cairo_surface_t *surface, + const cairo_rectangle_int_t *extents); + +/* Similar to clone; but allow format conversion */ +cairo_private cairo_image_surface_t * +_cairo_image_surface_create_from_image (cairo_image_surface_t *other, + pixman_format_code_t format, + int x, int y, int width, int height, + int stride); + +CAIRO_END_DECLS + +#endif /* CAIRO_IMAGE_SURFACE_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-image-surface.c b/local/recipes/libs/cairo/source/src/cairo-image-surface.c new file mode 100644 index 0000000000..f18366b635 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-image-surface.c @@ -0,0 +1,1372 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2003 University of Southern California + * Copyright © 2009,2010,2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-boxes-private.h" +#include "cairo-clip-private.h" +#include "cairo-composite-rectangles-private.h" +#include "cairo-compositor-private.h" +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-inline.h" +#include "cairo-paginated-private.h" +#include "cairo-pattern-private.h" +#include "cairo-pixman-private.h" +#include "cairo-recording-surface-private.h" +#include "cairo-region-private.h" +#include "cairo-scaled-font-private.h" +#include "cairo-surface-snapshot-inline.h" +#include "cairo-surface-snapshot-private.h" +#include "cairo-surface-subsurface-private.h" + +/* Limit on the width / height of an image surface in pixels. This is + * mainly determined by coordinates of things sent to pixman at the + * moment being in 16.16 format. */ +#define MAX_IMAGE_SIZE 32767 + +/** + * SECTION:cairo-image + * @Title: Image Surfaces + * @Short_Description: Rendering to memory buffers + * @See_Also: #cairo_surface_t + * + * Image surfaces provide the ability to render to memory buffers + * either allocated by cairo or by the calling code. The supported + * image formats are those defined in #cairo_format_t. + **/ + +/** + * CAIRO_HAS_IMAGE_SURFACE: + * + * Defined if the image surface backend is available. + * The image surface backend is always built in. + * This macro was added for completeness in cairo 1.8. + * + * Since: 1.8 + **/ + +static cairo_bool_t +_cairo_image_surface_is_size_valid (int width, int height) +{ + return 0 <= width && width <= MAX_IMAGE_SIZE && + 0 <= height && height <= MAX_IMAGE_SIZE; +} + +cairo_format_t +_cairo_format_from_pixman_format (pixman_format_code_t pixman_format) +{ + switch (pixman_format) { + case PIXMAN_rgba_float: + return CAIRO_FORMAT_RGBA128F; + case PIXMAN_rgb_float: + return CAIRO_FORMAT_RGB96F; + case PIXMAN_a8r8g8b8: + return CAIRO_FORMAT_ARGB32; + case PIXMAN_x2r10g10b10: + return CAIRO_FORMAT_RGB30; + case PIXMAN_x8r8g8b8: + return CAIRO_FORMAT_RGB24; + case PIXMAN_a8: + return CAIRO_FORMAT_A8; + case PIXMAN_a1: + return CAIRO_FORMAT_A1; + case PIXMAN_r5g6b5: + return CAIRO_FORMAT_RGB16_565; + case PIXMAN_r8g8b8a8: case PIXMAN_r8g8b8x8: + case PIXMAN_a8r8g8b8_sRGB: +#if HAS_PIXMAN_r8g8b8_sRGB + case PIXMAN_r8g8b8_sRGB: +#endif + case PIXMAN_a8b8g8r8: case PIXMAN_x8b8g8r8: case PIXMAN_r8g8b8: + case PIXMAN_b8g8r8: case PIXMAN_b5g6r5: + case PIXMAN_a1r5g5b5: case PIXMAN_x1r5g5b5: case PIXMAN_a1b5g5r5: + case PIXMAN_x1b5g5r5: case PIXMAN_a4r4g4b4: case PIXMAN_x4r4g4b4: + case PIXMAN_a4b4g4r4: case PIXMAN_x4b4g4r4: case PIXMAN_r3g3b2: + case PIXMAN_b2g3r3: case PIXMAN_a2r2g2b2: case PIXMAN_a2b2g2r2: + case PIXMAN_c8: case PIXMAN_g8: case PIXMAN_x4a4: + case PIXMAN_a4: case PIXMAN_r1g2b1: case PIXMAN_b1g2r1: + case PIXMAN_a1r1g1b1: case PIXMAN_a1b1g1r1: case PIXMAN_c4: + case PIXMAN_g4: case PIXMAN_g1: + case PIXMAN_yuy2: case PIXMAN_yv12: + case PIXMAN_b8g8r8x8: + case PIXMAN_b8g8r8a8: + case PIXMAN_a2b10g10r10: + case PIXMAN_x2b10g10r10: + case PIXMAN_a2r10g10b10: + case PIXMAN_x14r6g6b6: + default: + return CAIRO_FORMAT_INVALID; + } + + return CAIRO_FORMAT_INVALID; +} + +cairo_content_t +_cairo_content_from_pixman_format (pixman_format_code_t pixman_format) +{ + cairo_content_t content; + + content = 0; + if (PIXMAN_FORMAT_RGB (pixman_format)) + content |= CAIRO_CONTENT_COLOR; + if (PIXMAN_FORMAT_A (pixman_format)) + content |= CAIRO_CONTENT_ALPHA; + + return content; +} + +void +_cairo_image_surface_init (cairo_image_surface_t *surface, + pixman_image_t *pixman_image, + pixman_format_code_t pixman_format) +{ + surface->parent = NULL; + surface->pixman_image = pixman_image; + + surface->pixman_format = pixman_format; + surface->format = _cairo_format_from_pixman_format (pixman_format); + surface->data = (uint8_t *) pixman_image_get_data (pixman_image); + surface->owns_data = FALSE; + surface->transparency = CAIRO_IMAGE_UNKNOWN; + surface->color = CAIRO_IMAGE_UNKNOWN_COLOR; + + surface->width = pixman_image_get_width (pixman_image); + surface->height = pixman_image_get_height (pixman_image); + surface->stride = pixman_image_get_stride (pixman_image); + surface->depth = pixman_image_get_depth (pixman_image); + + surface->base.is_clear = surface->width == 0 || surface->height == 0; + + surface->compositor = _cairo_image_spans_compositor_get (); +} + +cairo_surface_t * +_cairo_image_surface_create_for_pixman_image (pixman_image_t *pixman_image, + pixman_format_code_t pixman_format) +{ + cairo_image_surface_t *surface; + + surface = _cairo_calloc (sizeof (cairo_image_surface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_surface_init (&surface->base, + &_cairo_image_surface_backend, + NULL, /* device */ + _cairo_content_from_pixman_format (pixman_format), + FALSE); /* is_vector */ + + _cairo_image_surface_init (surface, pixman_image, pixman_format); + + return &surface->base; +} + +cairo_bool_t +_pixman_format_from_masks (cairo_format_masks_t *masks, + pixman_format_code_t *format_ret) +{ + pixman_format_code_t format; + int format_type; + int a, r, g, b; + cairo_format_masks_t format_masks; + + a = _cairo_popcount (masks->alpha_mask); + r = _cairo_popcount (masks->red_mask); + g = _cairo_popcount (masks->green_mask); + b = _cairo_popcount (masks->blue_mask); + + if (masks->red_mask) { + if (masks->red_mask > masks->blue_mask) + format_type = PIXMAN_TYPE_ARGB; + else + format_type = PIXMAN_TYPE_ABGR; + } else if (masks->alpha_mask) { + format_type = PIXMAN_TYPE_A; + } else { + return FALSE; + } + + format = PIXMAN_FORMAT (masks->bpp, format_type, a, r, g, b); + + if (! pixman_format_supported_destination (format)) + return FALSE; + + /* Sanity check that we got out of PIXMAN_FORMAT exactly what we + * expected. This avoid any problems from something bizarre like + * alpha in the least-significant bits, or insane channel order, + * or whatever. */ + if (!_pixman_format_to_masks (format, &format_masks) || + masks->bpp != format_masks.bpp || + masks->red_mask != format_masks.red_mask || + masks->green_mask != format_masks.green_mask || + masks->blue_mask != format_masks.blue_mask) + { + return FALSE; + } + + *format_ret = format; + return TRUE; +} + +/* Convenience function to convert #cairo_dither_t into #pixman_dither_t */ +static pixman_dither_t +_cairo_dither_to_pixman_dither (cairo_dither_t dither) +{ + switch (dither) { + case CAIRO_DITHER_FAST: + return PIXMAN_DITHER_FAST; + case CAIRO_DITHER_GOOD: + return PIXMAN_DITHER_GOOD; + case CAIRO_DITHER_BEST: + return PIXMAN_DITHER_BEST; + case CAIRO_DITHER_NONE: + case CAIRO_DITHER_DEFAULT: + default: + return PIXMAN_DITHER_NONE; + } +} + +/* A mask consisting of N bits set to 1. */ +#define MASK(N) ((1UL << (N))-1) + +cairo_bool_t +_pixman_format_to_masks (pixman_format_code_t format, + cairo_format_masks_t *masks) +{ + int a, r, g, b; + + masks->bpp = PIXMAN_FORMAT_BPP (format); + + /* Number of bits in each channel */ + a = PIXMAN_FORMAT_A (format); + r = PIXMAN_FORMAT_R (format); + g = PIXMAN_FORMAT_G (format); + b = PIXMAN_FORMAT_B (format); + + switch (PIXMAN_FORMAT_TYPE (format)) { + case PIXMAN_TYPE_ARGB: + masks->alpha_mask = MASK (a) << (r + g + b); + masks->red_mask = MASK (r) << (g + b); + masks->green_mask = MASK (g) << (b); + masks->blue_mask = MASK (b); + return TRUE; + case PIXMAN_TYPE_ABGR: + masks->alpha_mask = MASK (a) << (b + g + r); + masks->blue_mask = MASK (b) << (g + r); + masks->green_mask = MASK (g) << (r); + masks->red_mask = MASK (r); + return TRUE; +#ifdef PIXMAN_TYPE_BGRA + case PIXMAN_TYPE_BGRA: + masks->blue_mask = MASK (b) << (masks->bpp - b); + masks->green_mask = MASK (g) << (masks->bpp - b - g); + masks->red_mask = MASK (r) << (masks->bpp - b - g - r); + masks->alpha_mask = MASK (a); + return TRUE; +#endif + case PIXMAN_TYPE_A: + masks->alpha_mask = MASK (a); + masks->red_mask = 0; + masks->green_mask = 0; + masks->blue_mask = 0; + return TRUE; + case PIXMAN_TYPE_OTHER: + case PIXMAN_TYPE_COLOR: + case PIXMAN_TYPE_GRAY: + case PIXMAN_TYPE_YUY2: + case PIXMAN_TYPE_YV12: + default: + masks->alpha_mask = 0; + masks->red_mask = 0; + masks->green_mask = 0; + masks->blue_mask = 0; + return FALSE; + } +} + +pixman_format_code_t +_cairo_format_to_pixman_format_code (cairo_format_t format) +{ + pixman_format_code_t ret; + switch (format) { + case CAIRO_FORMAT_A1: + ret = PIXMAN_a1; + break; + case CAIRO_FORMAT_A8: + ret = PIXMAN_a8; + break; + case CAIRO_FORMAT_RGB24: + ret = PIXMAN_x8r8g8b8; + break; + case CAIRO_FORMAT_RGB30: + ret = PIXMAN_x2r10g10b10; + break; + case CAIRO_FORMAT_RGB16_565: + ret = PIXMAN_r5g6b5; + break; + case CAIRO_FORMAT_RGB96F: + ret = PIXMAN_rgb_float; + break; + case CAIRO_FORMAT_RGBA128F: + ret = PIXMAN_rgba_float; + break; + case CAIRO_FORMAT_ARGB32: + case CAIRO_FORMAT_INVALID: + default: + ret = PIXMAN_a8r8g8b8; + break; + } + return ret; +} + +cairo_surface_t * +_cairo_image_surface_create_with_pixman_format (unsigned char *data, + pixman_format_code_t pixman_format, + int width, + int height, + int stride) +{ + cairo_surface_t *surface; + pixman_image_t *pixman_image; + + if (! _cairo_image_surface_is_size_valid (width, height)) + { + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + } + + pixman_image = pixman_image_create_bits (pixman_format, width, height, + (uint32_t *) data, stride); + + if (unlikely (pixman_image == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + surface = _cairo_image_surface_create_for_pixman_image (pixman_image, + pixman_format); + if (unlikely (surface->status)) { + pixman_image_unref (pixman_image); + return surface; + } + + /* we can not make any assumptions about the initial state of user data */ + surface->is_clear = data == NULL; + return surface; +} + +/** + * cairo_image_surface_create: + * @format: format of pixels in the surface to create + * @width: width of the surface, in pixels + * @height: height of the surface, in pixels + * + * Creates an image surface of the specified format and + * dimensions. Initially the surface contents are set to 0. + * (Specifically, within each pixel, each color or alpha channel + * belonging to format will be 0. The contents of bits within a pixel, + * but not belonging to the given format are undefined). + * + * Return value: a pointer to the newly created surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if an error such as out of memory + * occurs. You can use cairo_surface_status() to check for this. + * + * Since: 1.0 + **/ +cairo_surface_t * +cairo_image_surface_create (cairo_format_t format, + int width, + int height) +{ + pixman_format_code_t pixman_format; + + if (! CAIRO_FORMAT_VALID (format)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT)); + + pixman_format = _cairo_format_to_pixman_format_code (format); + + return _cairo_image_surface_create_with_pixman_format (NULL, pixman_format, + width, height, -1); +} + +cairo_surface_t * +_cairo_image_surface_create_with_content (cairo_content_t content, + int width, + int height) +{ + return cairo_image_surface_create (_cairo_format_from_content (content), + width, height); +} + +/** + * cairo_format_stride_for_width: + * @format: A #cairo_format_t value + * @width: The desired width of an image surface to be created. + * + * This function provides a stride value that will respect all + * alignment requirements of the accelerated image-rendering code + * within cairo. Typical usage will be of the form: + * + * + * int stride; + * unsigned char *data; + * cairo_surface_t *surface; + * + * stride = cairo_format_stride_for_width (format, width); + * data = malloc (stride * height); + * surface = cairo_image_surface_create_for_data (data, format, + * width, height, + * stride); + * + * + * Return value: the appropriate stride to use given the desired + * format and width, or -1 if either the format is invalid or the width + * too large. + * + * Since: 1.6 + **/ +int +cairo_format_stride_for_width (cairo_format_t format, + int width) +{ + int bpp; + + if (! CAIRO_FORMAT_VALID (format)) { + _cairo_error_throw (CAIRO_STATUS_INVALID_FORMAT); + return -1; + } + + bpp = _cairo_format_bits_per_pixel (format); + if ((unsigned) (width) >= (INT32_MAX - 7) / (unsigned) (bpp)) + return -1; + + return CAIRO_STRIDE_FOR_WIDTH_BPP (width, bpp); +} + +/** + * cairo_image_surface_create_for_data: + * @data: a pointer to a buffer supplied by the application in which + * to write contents. This pointer must be suitably aligned for any + * kind of variable, (for example, a pointer returned by malloc). + * @format: the format of pixels in the buffer + * @width: the width of the image to be stored in the buffer + * @height: the height of the image to be stored in the buffer + * @stride: the number of bytes between the start of rows in the + * buffer as allocated. This value should always be computed by + * cairo_format_stride_for_width() before allocating the data + * buffer. + * + * Creates an image surface for the provided pixel data. The output + * buffer must be kept around until the #cairo_surface_t is destroyed + * or cairo_surface_finish() is called on the surface. The initial + * contents of @data will be used as the initial image contents; you + * must explicitly clear the buffer, using, for example, + * cairo_rectangle() and cairo_fill() if you want it cleared. + * + * Note that the stride may be larger than + * width*bytes_per_pixel to provide proper alignment for each pixel + * and row. This alignment is required to allow high-performance rendering + * within cairo. The correct way to obtain a legal stride value is to + * call cairo_format_stride_for_width() with the desired format and + * maximum image width value, and then use the resulting stride value + * to allocate the data and to create the image surface. See + * cairo_format_stride_for_width() for example code. + * + * Return value: a pointer to the newly created surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface in the case of an error such as out of + * memory or an invalid stride value. In case of invalid stride value + * the error status of the returned surface will be + * %CAIRO_STATUS_INVALID_STRIDE. You can use + * cairo_surface_status() to check for this. + * + * See cairo_surface_set_user_data() for a means of attaching a + * destroy-notification fallback to the surface if necessary. + * + * Since: 1.0 + **/ +cairo_surface_t * +cairo_image_surface_create_for_data (unsigned char *data, + cairo_format_t format, + int width, + int height, + int stride) +{ + pixman_format_code_t pixman_format; + int minstride; + + if (! CAIRO_FORMAT_VALID (format)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT)); + + if ((stride & (CAIRO_STRIDE_ALIGNMENT-1)) != 0) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_STRIDE)); + + if (! _cairo_image_surface_is_size_valid (width, height)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + + minstride = cairo_format_stride_for_width (format, width); + if (stride < 0) { + if (stride > -minstride) { + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_STRIDE)); + } + } else { + if (stride < minstride) { + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_STRIDE)); + } + } + + pixman_format = _cairo_format_to_pixman_format_code (format); + return _cairo_image_surface_create_with_pixman_format (data, + pixman_format, + width, height, + stride); +} + +/** + * cairo_image_surface_get_data: + * @surface: a #cairo_image_surface_t + * + * Get a pointer to the data of the image surface, for direct + * inspection or modification. + * + * A call to cairo_surface_flush() is required before accessing the + * pixel data to ensure that all pending drawing operations are + * finished. A call to cairo_surface_mark_dirty() is required after + * the data is modified. + * + * Return value: a pointer to the image data of this surface or %NULL + * if @surface is not an image surface, or if cairo_surface_finish() + * has been called. + * + * Since: 1.2 + **/ +unsigned char * +cairo_image_surface_get_data (cairo_surface_t *surface) +{ + cairo_image_surface_t *image_surface = (cairo_image_surface_t *) surface; + + if (! _cairo_surface_is_image (surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return NULL; + } + + return image_surface->data; +} + +/** + * cairo_image_surface_get_format: + * @surface: a #cairo_image_surface_t + * + * Get the format of the surface. + * + * Return value: the format of the surface + * + * Since: 1.2 + **/ +cairo_format_t +cairo_image_surface_get_format (cairo_surface_t *surface) +{ + cairo_image_surface_t *image_surface = (cairo_image_surface_t *) surface; + + if (! _cairo_surface_is_image (surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return CAIRO_FORMAT_INVALID; + } + + return image_surface->format; +} + +/** + * cairo_image_surface_get_width: + * @surface: a #cairo_image_surface_t + * + * Get the width of the image surface in pixels. + * + * Return value: the width of the surface in pixels. + * + * Since: 1.0 + **/ +int +cairo_image_surface_get_width (cairo_surface_t *surface) +{ + cairo_image_surface_t *image_surface = (cairo_image_surface_t *) surface; + + if (! _cairo_surface_is_image (surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + + return image_surface->width; +} + +/** + * cairo_image_surface_get_height: + * @surface: a #cairo_image_surface_t + * + * Get the height of the image surface in pixels. + * + * Return value: the height of the surface in pixels. + * + * Since: 1.0 + **/ +int +cairo_image_surface_get_height (cairo_surface_t *surface) +{ + cairo_image_surface_t *image_surface = (cairo_image_surface_t *) surface; + + if (! _cairo_surface_is_image (surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + + return image_surface->height; +} + +/** + * cairo_image_surface_get_stride: + * @surface: a #cairo_image_surface_t + * + * Get the stride of the image surface in bytes + * + * Return value: the stride of the image surface in bytes (or 0 if + * @surface is not an image surface). The stride is the distance in + * bytes from the beginning of one row of the image data to the + * beginning of the next row. + * + * Since: 1.2 + **/ +int +cairo_image_surface_get_stride (cairo_surface_t *surface) +{ + + cairo_image_surface_t *image_surface = (cairo_image_surface_t *) surface; + + if (! _cairo_surface_is_image (surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + + return image_surface->stride; +} + +cairo_format_t +_cairo_format_from_content (cairo_content_t content) +{ + switch (content) { + case CAIRO_CONTENT_COLOR: + return CAIRO_FORMAT_RGB24; + case CAIRO_CONTENT_ALPHA: + return CAIRO_FORMAT_A8; + case CAIRO_CONTENT_COLOR_ALPHA: + return CAIRO_FORMAT_ARGB32; + } + + ASSERT_NOT_REACHED; + return CAIRO_FORMAT_INVALID; +} + +cairo_content_t +_cairo_content_from_format (cairo_format_t format) +{ + switch (format) { + case CAIRO_FORMAT_RGBA128F: + case CAIRO_FORMAT_ARGB32: + return CAIRO_CONTENT_COLOR_ALPHA; + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGB30: + return CAIRO_CONTENT_COLOR; + case CAIRO_FORMAT_RGB24: + return CAIRO_CONTENT_COLOR; + case CAIRO_FORMAT_RGB16_565: + return CAIRO_CONTENT_COLOR; + case CAIRO_FORMAT_A8: + case CAIRO_FORMAT_A1: + return CAIRO_CONTENT_ALPHA; + case CAIRO_FORMAT_INVALID: + break; + } + + ASSERT_NOT_REACHED; + return CAIRO_CONTENT_COLOR_ALPHA; +} + +int +_cairo_format_bits_per_pixel (cairo_format_t format) +{ + switch (format) { + case CAIRO_FORMAT_RGBA128F: + return 128; + case CAIRO_FORMAT_RGB96F: + return 96; + case CAIRO_FORMAT_ARGB32: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_RGB24: + return 32; + case CAIRO_FORMAT_RGB16_565: + return 16; + case CAIRO_FORMAT_A8: + return 8; + case CAIRO_FORMAT_A1: + return 1; + case CAIRO_FORMAT_INVALID: + default: + ASSERT_NOT_REACHED; + return 0; + } +} + +cairo_surface_t * +_cairo_image_surface_create_similar (void *abstract_other, + cairo_content_t content, + int width, + int height) +{ + cairo_image_surface_t *other = abstract_other; + + TRACE ((stderr, "%s (other=%u)\n", __FUNCTION__, other->base.unique_id)); + + if (! _cairo_image_surface_is_size_valid (width, height)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + + if (content == other->base.content) { + return _cairo_image_surface_create_with_pixman_format (NULL, + other->pixman_format, + width, height, + 0); + } + + return _cairo_image_surface_create_with_content (content, + width, height); +} + +cairo_surface_t * +_cairo_image_surface_snapshot (void *abstract_surface) +{ + cairo_image_surface_t *image = abstract_surface; + cairo_image_surface_t *clone; + + /* If we own the image, we can simply steal the memory for the snapshot */ + if (image->owns_data && image->base._finishing) { + clone = (cairo_image_surface_t *) + _cairo_image_surface_create_for_pixman_image (image->pixman_image, + image->pixman_format); + if (unlikely (clone->base.status)) + return &clone->base; + + image->pixman_image = NULL; + image->owns_data = FALSE; + + clone->transparency = image->transparency; + clone->color = image->color; + + clone->owns_data = TRUE; + return &clone->base; + } + + clone = (cairo_image_surface_t *) + _cairo_image_surface_create_with_pixman_format (NULL, + image->pixman_format, + image->width, + image->height, + 0); + if (unlikely (clone->base.status)) + return &clone->base; + + if (clone->stride == image->stride) { + memcpy (clone->data, image->data, clone->stride * clone->height); + } else { + pixman_image_composite32 (PIXMAN_OP_SRC, + image->pixman_image, NULL, clone->pixman_image, + 0, 0, + 0, 0, + 0, 0, + image->width, image->height); + } + clone->base.is_clear = FALSE; + return &clone->base; +} + +cairo_image_surface_t * +_cairo_image_surface_map_to_image (void *abstract_other, + const cairo_rectangle_int_t *extents) +{ + cairo_image_surface_t *other = abstract_other; + cairo_surface_t *surface; + uint8_t *data; + + data = other->data; + data += extents->y * other->stride; + data += extents->x * PIXMAN_FORMAT_BPP (other->pixman_format)/ 8; + + surface = + _cairo_image_surface_create_with_pixman_format (data, + other->pixman_format, + extents->width, + extents->height, + other->stride); + + cairo_surface_set_device_offset (surface, -extents->x, -extents->y); + return (cairo_image_surface_t *) surface; +} + +cairo_int_status_t +_cairo_image_surface_unmap_image (void *abstract_surface, + cairo_image_surface_t *image) +{ + cairo_surface_finish (&image->base); + cairo_surface_destroy (&image->base); + + return CAIRO_INT_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_image_surface_finish (void *abstract_surface) +{ + cairo_image_surface_t *surface = abstract_surface; + + if (surface->pixman_image) { + pixman_image_unref (surface->pixman_image); + surface->pixman_image = NULL; + } + + if (surface->owns_data) { + free (surface->data); + surface->data = NULL; + } + + if (surface->parent) { + cairo_surface_t *parent = surface->parent; + surface->parent = NULL; + cairo_surface_destroy (parent); + } + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_image_surface_assume_ownership_of_data (cairo_image_surface_t *surface) +{ + surface->owns_data = TRUE; +} + +cairo_surface_t * +_cairo_image_surface_source (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_image_surface_t *surface = abstract_surface; + + if (extents) { + extents->x = extents->y = 0; + extents->width = surface->width; + extents->height = surface->height; + } + + return &surface->base; +} + +cairo_status_t +_cairo_image_surface_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + *image_out = abstract_surface; + *image_extra = NULL; + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_image_surface_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *image_extra) +{ +} + +/* high level image interface */ +cairo_bool_t +_cairo_image_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle) +{ + cairo_image_surface_t *surface = abstract_surface; + + rectangle->x = 0; + rectangle->y = 0; + rectangle->width = surface->width; + rectangle->height = surface->height; + + return TRUE; +} + +cairo_int_status_t +_cairo_image_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_image_surface_t *surface = abstract_surface; + pixman_dither_t pixman_dither = _cairo_dither_to_pixman_dither (source->dither); + pixman_image_set_dither (surface->pixman_image, pixman_dither); + + TRACE ((stderr, "%s (surface=%d)\n", + __FUNCTION__, surface->base.unique_id)); + + return _cairo_compositor_paint (surface->compositor, + &surface->base, op, source, clip); +} + +cairo_int_status_t +_cairo_image_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_image_surface_t *surface = abstract_surface; + + TRACE ((stderr, "%s (surface=%d)\n", + __FUNCTION__, surface->base.unique_id)); + + return _cairo_compositor_mask (surface->compositor, + &surface->base, op, source, mask, clip); +} + +cairo_int_status_t +_cairo_image_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_image_surface_t *surface = abstract_surface; + + TRACE ((stderr, "%s (surface=%d)\n", + __FUNCTION__, surface->base.unique_id)); + + return _cairo_compositor_stroke (surface->compositor, &surface->base, + op, source, path, + style, ctm, ctm_inverse, + tolerance, antialias, clip); +} + +cairo_int_status_t +_cairo_image_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_image_surface_t *surface = abstract_surface; + + TRACE ((stderr, "%s (surface=%d)\n", + __FUNCTION__, surface->base.unique_id)); + + return _cairo_compositor_fill (surface->compositor, &surface->base, + op, source, path, + fill_rule, tolerance, antialias, + clip); +} + +cairo_int_status_t +_cairo_image_surface_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_image_surface_t *surface = abstract_surface; + + TRACE ((stderr, "%s (surface=%d)\n", + __FUNCTION__, surface->base.unique_id)); + + return _cairo_compositor_glyphs (surface->compositor, &surface->base, + op, source, + glyphs, num_glyphs, scaled_font, + clip); +} + +void +_cairo_image_surface_get_font_options (void *abstract_surface, + cairo_font_options_t *options) +{ + _cairo_font_options_init_default (options); + + cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_ON); + _cairo_font_options_set_round_glyph_positions (options, CAIRO_ROUND_GLYPH_POS_ON); +} + +const cairo_surface_backend_t _cairo_image_surface_backend = { + CAIRO_SURFACE_TYPE_IMAGE, + _cairo_image_surface_finish, + + _cairo_default_context_create, + + _cairo_image_surface_create_similar, + NULL, /* create similar image */ + _cairo_image_surface_map_to_image, + _cairo_image_surface_unmap_image, + + _cairo_image_surface_source, + _cairo_image_surface_acquire_source_image, + _cairo_image_surface_release_source_image, + _cairo_image_surface_snapshot, + + NULL, /* copy_page */ + NULL, /* show_page */ + + _cairo_image_surface_get_extents, + _cairo_image_surface_get_font_options, + + NULL, /* flush */ + NULL, + + _cairo_image_surface_paint, + _cairo_image_surface_mask, + _cairo_image_surface_stroke, + _cairo_image_surface_fill, + NULL, /* fill-stroke */ + _cairo_image_surface_glyphs, +}; + +/* A convenience function for when one needs to coerce an image + * surface to an alternate format. */ +cairo_image_surface_t * +_cairo_image_surface_coerce (cairo_image_surface_t *surface) +{ + return _cairo_image_surface_coerce_to_format (surface, + _cairo_format_from_content (surface->base.content)); +} + +/* A convenience function for when one needs to coerce an image + * surface to an alternate format. */ +cairo_image_surface_t * +_cairo_image_surface_coerce_to_format (cairo_image_surface_t *surface, + cairo_format_t format) +{ + cairo_image_surface_t *clone; + cairo_status_t status; + + status = surface->base.status; + if (unlikely (status)) + return (cairo_image_surface_t *)_cairo_surface_create_in_error (status); + + if (surface->format == format) + return (cairo_image_surface_t *)cairo_surface_reference(&surface->base); + + clone = (cairo_image_surface_t *) + cairo_image_surface_create (format, surface->width, surface->height); + if (unlikely (clone->base.status)) + return clone; + + pixman_image_composite32 (PIXMAN_OP_SRC, + surface->pixman_image, NULL, clone->pixman_image, + 0, 0, + 0, 0, + 0, 0, + surface->width, surface->height); + clone->base.is_clear = FALSE; + + clone->base.device_transform = + surface->base.device_transform; + clone->base.device_transform_inverse = + surface->base.device_transform_inverse; + + return clone; +} + +cairo_image_surface_t * +_cairo_image_surface_create_from_image (cairo_image_surface_t *other, + pixman_format_code_t format, + int x, int y, + int width, int height, int stride) +{ + cairo_image_surface_t *surface; + cairo_status_t status; + pixman_image_t *image; + void *mem = NULL; + + status = other->base.status; + if (unlikely (status)) + goto cleanup; + + if (stride) { + mem = _cairo_malloc_ab (height, stride); + if (unlikely (mem == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto cleanup; + } + } + + image = pixman_image_create_bits (format, width, height, mem, stride); + if (unlikely (image == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto cleanup_mem; + } + + surface = (cairo_image_surface_t *) + _cairo_image_surface_create_for_pixman_image (image, format); + if (unlikely (surface->base.status)) { + status = surface->base.status; + goto cleanup_image; + } + + pixman_image_composite32 (PIXMAN_OP_SRC, + other->pixman_image, NULL, image, + x, y, + 0, 0, + 0, 0, + width, height); + surface->base.is_clear = FALSE; + surface->owns_data = mem != NULL; + + return surface; + +cleanup_image: + pixman_image_unref (image); +cleanup_mem: + free (mem); +cleanup: + return (cairo_image_surface_t *) _cairo_surface_create_in_error (status); +} + +static cairo_image_transparency_t +_cairo_image_compute_transparency (cairo_image_surface_t *image) +{ + int x, y; + cairo_image_transparency_t transparency; + + if ((image->base.content & CAIRO_CONTENT_ALPHA) == 0) + return CAIRO_IMAGE_IS_OPAQUE; + + if (image->base.is_clear) + return CAIRO_IMAGE_HAS_BILEVEL_ALPHA; + + if ((image->base.content & CAIRO_CONTENT_COLOR) == 0) { + if (image->format == CAIRO_FORMAT_A1) { + return CAIRO_IMAGE_HAS_BILEVEL_ALPHA; + } else if (image->format == CAIRO_FORMAT_A8) { + for (y = 0; y < image->height; y++) { + uint8_t *alpha = (uint8_t *) (image->data + y * image->stride); + + for (x = 0; x < image->width; x++, alpha++) { + if (*alpha > 0 && *alpha < 255) + return CAIRO_IMAGE_HAS_ALPHA; + } + } + return CAIRO_IMAGE_HAS_BILEVEL_ALPHA; + } else { + return CAIRO_IMAGE_HAS_ALPHA; + } + } + + if (image->format == CAIRO_FORMAT_RGB16_565) { + return CAIRO_IMAGE_IS_OPAQUE; + } + + if (image->format != CAIRO_FORMAT_ARGB32) + return CAIRO_IMAGE_HAS_ALPHA; + + transparency = CAIRO_IMAGE_IS_OPAQUE; + for (y = 0; y < image->height; y++) { + uint32_t *pixel = (uint32_t *) (image->data + y * image->stride); + + for (x = 0; x < image->width; x++, pixel++) { + int a = (*pixel & 0xff000000) >> 24; + if (a > 0 && a < 255) { + return CAIRO_IMAGE_HAS_ALPHA; + } else if (a == 0) { + transparency = CAIRO_IMAGE_HAS_BILEVEL_ALPHA; + } + } + } + + return transparency; +} + +cairo_image_transparency_t +_cairo_image_analyze_transparency (cairo_image_surface_t *image) +{ + if (_cairo_surface_is_snapshot (&image->base)) { + if (image->transparency == CAIRO_IMAGE_UNKNOWN) + image->transparency = _cairo_image_compute_transparency (image); + + return image->transparency; + } + + return _cairo_image_compute_transparency (image); +} + +static cairo_image_color_t +_cairo_image_compute_color (cairo_image_surface_t *image) +{ + int x, y; + cairo_image_color_t color; + + if (image->width == 0 || image->height == 0) + return CAIRO_IMAGE_IS_MONOCHROME; + + if (image->format == CAIRO_FORMAT_A1) + return CAIRO_IMAGE_IS_MONOCHROME; + + if (image->format == CAIRO_FORMAT_A8) + return CAIRO_IMAGE_IS_GRAYSCALE; + + if (image->format == CAIRO_FORMAT_ARGB32) { + color = CAIRO_IMAGE_IS_MONOCHROME; + for (y = 0; y < image->height; y++) { + uint32_t *pixel = (uint32_t *) (image->data + y * image->stride); + + for (x = 0; x < image->width; x++, pixel++) { + int a = (*pixel & 0xff000000) >> 24; + int r = (*pixel & 0x00ff0000) >> 16; + int g = (*pixel & 0x0000ff00) >> 8; + int b = (*pixel & 0x000000ff); + if (a == 0) { + r = g = b = 0; + } else { + r = (r * 255 + a / 2) / a; + g = (g * 255 + a / 2) / a; + b = (b * 255 + a / 2) / a; + } + if (!(r == g && g == b)) + return CAIRO_IMAGE_IS_COLOR; + else if (r > 0 && r < 255) + color = CAIRO_IMAGE_IS_GRAYSCALE; + } + } + return color; + } + + if (image->format == CAIRO_FORMAT_RGB24) { + color = CAIRO_IMAGE_IS_MONOCHROME; + for (y = 0; y < image->height; y++) { + uint32_t *pixel = (uint32_t *) (image->data + y * image->stride); + + for (x = 0; x < image->width; x++, pixel++) { + int r = (*pixel & 0x00ff0000) >> 16; + int g = (*pixel & 0x0000ff00) >> 8; + int b = (*pixel & 0x000000ff); + if (!(r == g && g == b)) + return CAIRO_IMAGE_IS_COLOR; + else if (r > 0 && r < 255) + color = CAIRO_IMAGE_IS_GRAYSCALE; + } + } + return color; + } + + return CAIRO_IMAGE_IS_COLOR; +} + +cairo_image_color_t +_cairo_image_analyze_color (cairo_image_surface_t *image) +{ + if (_cairo_surface_is_snapshot (&image->base)) { + if (image->color == CAIRO_IMAGE_UNKNOWN_COLOR) + image->color = _cairo_image_compute_color (image); + + return image->color; + } + + return _cairo_image_compute_color (image); +} + +cairo_image_surface_t * +_cairo_image_surface_clone_subimage (cairo_surface_t *surface, + const cairo_rectangle_int_t *extents) +{ + cairo_surface_t *image; + cairo_surface_pattern_t pattern; + cairo_status_t status; + + image = cairo_surface_create_similar_image (surface, + _cairo_format_from_content (surface->content), + extents->width, + extents->height); + if (image->status) + return to_image_surface (image); + + /* TODO: check me with non-identity device_transform. Should we + * clone the scaling, too? */ + cairo_surface_set_device_offset (image, + -extents->x, + -extents->y); + + _cairo_pattern_init_for_surface (&pattern, surface); + pattern.base.filter = CAIRO_FILTER_NEAREST; + + status = _cairo_surface_paint (image, + CAIRO_OPERATOR_SOURCE, + &pattern.base, + NULL); + + _cairo_pattern_fini (&pattern.base); + + if (unlikely (status)) + goto error; + + /* We use the parent as a flag during map-to-image/umap-image that the + * resultant image came from a fallback rather than as direct call + * to the backend's map_to_image(). Whilst we use it as a simple flag, + * we need to make sure the parent surface obeys the reference counting + * semantics and is consistent for all callers. + */ + _cairo_image_surface_set_parent (to_image_surface (image), + cairo_surface_reference (surface)); + + return to_image_surface (image); + +error: + cairo_surface_destroy (image); + return to_image_surface (_cairo_surface_create_in_error (status)); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-line-inline.h b/local/recipes/libs/cairo/source/src/cairo-line-inline.h new file mode 100644 index 0000000000..71cc5e7ebf --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-line-inline.h @@ -0,0 +1,48 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2014 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + */ + +#ifndef CAIRO_LINE_INLINE_H +#define CAIRO_LINE_INLINE_H + +#include "cairo-types-private.h" +#include "cairo-compiler-private.h" +#include "cairo-fixed-private.h" +#include "cairo-line-private.h" + +static inline int +cairo_lines_equal (const cairo_line_t *a, const cairo_line_t *b) +{ + return (a->p1.x == b->p1.x && a->p1.y == b->p1.y && + a->p2.x == b->p2.x && a->p2.y == b->p2.y); +} + +#endif /* CAIRO_LINE_INLINE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-line-private.h b/local/recipes/libs/cairo/source/src/cairo-line-private.h new file mode 100644 index 0000000000..6ddcae18d6 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-line-private.h @@ -0,0 +1,51 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2014 Intel Corporation, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + */ + +#ifndef CAIRO_LINE_PRIVATE_H +#define CAIRO_LINE_PRIVATE_H + +#include "cairo-types-private.h" +#include "cairo-error-private.h" +#include "cairo-compiler-private.h" + +CAIRO_BEGIN_DECLS + +cairo_private int +_cairo_lines_compare_at_y (const cairo_line_t *a, + const cairo_line_t *b, + int y); + +CAIRO_END_DECLS + +#endif /* CAIRO_LINE_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-line.c b/local/recipes/libs/cairo/source/src/cairo-line.c new file mode 100644 index 0000000000..2c1768eeb1 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-line.c @@ -0,0 +1,307 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* + * Copyright © 2004 Carl Worth + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2008 Chris Wilson + * Copyright © 2014 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Keith Packard + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + * + */ + +#include "cairoint.h" + +#include "cairo-line-inline.h" +#include "cairo-slope-private.h" + +static int +line_compare_for_y_against_x (const cairo_line_t *a, + int32_t y, + int32_t x) +{ + int32_t adx, ady; + int32_t dx, dy; + cairo_int64_t L, R; + + if (x < a->p1.x && x < a->p2.x) + return 1; + if (x > a->p1.x && x > a->p2.x) + return -1; + + adx = a->p2.x - a->p1.x; + dx = x - a->p1.x; + + if (adx == 0) + return -dx; + if (dx == 0 || (adx ^ dx) < 0) + return adx; + + dy = y - a->p1.y; + ady = a->p2.y - a->p1.y; + + L = _cairo_int32x32_64_mul (dy, adx); + R = _cairo_int32x32_64_mul (dx, ady); + + return _cairo_int64_cmp (L, R); +} + +/* + * We need to compare the x-coordinates of a pair of lines for a particular y, + * without loss of precision. + * + * The x-coordinate along an edge for a given y is: + * X = A_x + (Y - A_y) * A_dx / A_dy + * + * So the inequality we wish to test is: + * A_x + (Y - A_y) * A_dx / A_dy ∘ B_x + (Y - B_y) * B_dx / B_dy, + * where ∘ is our inequality operator. + * + * By construction, we know that A_dy and B_dy (and (Y - A_y), (Y - B_y)) are + * all positive, so we can rearrange it thus without causing a sign change: + * A_dy * B_dy * (A_x - B_x) ∘ (Y - B_y) * B_dx * A_dy + * - (Y - A_y) * A_dx * B_dy + * + * Given the assumption that all the deltas fit within 32 bits, we can compute + * this comparison directly using 128 bit arithmetic. For certain, but common, + * input we can reduce this down to a single 32 bit compare by inspecting the + * deltas. + * + * (And put the burden of the work on developing fast 128 bit ops, which are + * required throughout the tessellator.) + * + * See the similar discussion for _slope_compare(). + */ +static int +lines_compare_x_for_y_general (const cairo_line_t *a, + const cairo_line_t *b, + int32_t y) +{ + /* XXX: We're assuming here that dx and dy will still fit in 32 + * bits. That's not true in general as there could be overflow. We + * should prevent that before the tessellation algorithm + * begins. + */ + int32_t dx = 0; + int32_t adx = 0, ady = 0; + int32_t bdx = 0, bdy = 0; + enum { + HAVE_NONE = 0x0, + HAVE_DX = 0x1, + HAVE_ADX = 0x2, + HAVE_DX_ADX = HAVE_DX | HAVE_ADX, + HAVE_BDX = 0x4, + HAVE_DX_BDX = HAVE_DX | HAVE_BDX, + HAVE_ADX_BDX = HAVE_ADX | HAVE_BDX, + HAVE_ALL = HAVE_DX | HAVE_ADX | HAVE_BDX + } have_dx_adx_bdx = HAVE_ALL; + + ady = a->p2.y - a->p1.y; + adx = a->p2.x - a->p1.x; + if (adx == 0) + have_dx_adx_bdx &= ~HAVE_ADX; + + bdy = b->p2.y - b->p1.y; + bdx = b->p2.x - b->p1.x; + if (bdx == 0) + have_dx_adx_bdx &= ~HAVE_BDX; + + dx = a->p1.x - b->p1.x; + if (dx == 0) + have_dx_adx_bdx &= ~HAVE_DX; + +#define L _cairo_int64x32_128_mul (_cairo_int32x32_64_mul (ady, bdy), dx) +#define A _cairo_int64x32_128_mul (_cairo_int32x32_64_mul (adx, bdy), y - a->p1.y) +#define B _cairo_int64x32_128_mul (_cairo_int32x32_64_mul (bdx, ady), y - b->p1.y) + switch (have_dx_adx_bdx) { + default: + case HAVE_NONE: + return 0; + case HAVE_DX: + /* A_dy * B_dy * (A_x - B_x) ∘ 0 */ + return dx; /* ady * bdy is positive definite */ + case HAVE_ADX: + /* 0 ∘ - (Y - A_y) * A_dx * B_dy */ + return adx; /* bdy * (y - a->top.y) is positive definite */ + case HAVE_BDX: + /* 0 ∘ (Y - B_y) * B_dx * A_dy */ + return -bdx; /* ady * (y - b->top.y) is positive definite */ + case HAVE_ADX_BDX: + /* 0 ∘ (Y - B_y) * B_dx * A_dy - (Y - A_y) * A_dx * B_dy */ + if ((adx ^ bdx) < 0) { + return adx; + } else if (a->p1.y == b->p1.y) { /* common origin */ + cairo_int64_t adx_bdy, bdx_ady; + + /* ∴ A_dx * B_dy ∘ B_dx * A_dy */ + + adx_bdy = _cairo_int32x32_64_mul (adx, bdy); + bdx_ady = _cairo_int32x32_64_mul (bdx, ady); + + return _cairo_int64_cmp (adx_bdy, bdx_ady); + } else + return _cairo_int128_cmp (A, B); + case HAVE_DX_ADX: + /* A_dy * (A_x - B_x) ∘ - (Y - A_y) * A_dx */ + if ((-adx ^ dx) < 0) { + return dx; + } else { + cairo_int64_t ady_dx, dy_adx; + + ady_dx = _cairo_int32x32_64_mul (ady, dx); + dy_adx = _cairo_int32x32_64_mul (a->p1.y - y, adx); + + return _cairo_int64_cmp (ady_dx, dy_adx); + } + case HAVE_DX_BDX: + /* B_dy * (A_x - B_x) ∘ (Y - B_y) * B_dx */ + if ((bdx ^ dx) < 0) { + return dx; + } else { + cairo_int64_t bdy_dx, dy_bdx; + + bdy_dx = _cairo_int32x32_64_mul (bdy, dx); + dy_bdx = _cairo_int32x32_64_mul (y - b->p1.y, bdx); + + return _cairo_int64_cmp (bdy_dx, dy_bdx); + } + case HAVE_ALL: + /* XXX try comparing (a->p2.x - b->p2.x) et al */ + return _cairo_int128_cmp (L, _cairo_int128_sub (B, A)); + } +#undef B +#undef A +#undef L +} + +static int +lines_compare_x_for_y (const cairo_line_t *a, + const cairo_line_t *b, + int32_t y) +{ + /* If the sweep-line is currently on an end-point of a line, + * then we know its precise x value (and considering that we often need to + * compare events at end-points, this happens frequently enough to warrant + * special casing). + */ + enum { + HAVE_NEITHER = 0x0, + HAVE_AX = 0x1, + HAVE_BX = 0x2, + HAVE_BOTH = HAVE_AX | HAVE_BX + } have_ax_bx = HAVE_BOTH; + int32_t ax = 0, bx = 0; + + if (y == a->p1.y) + ax = a->p1.x; + else if (y == a->p2.y) + ax = a->p2.x; + else + have_ax_bx &= ~HAVE_AX; + + if (y == b->p1.y) + bx = b->p1.x; + else if (y == b->p2.y) + bx = b->p2.x; + else + have_ax_bx &= ~HAVE_BX; + + switch (have_ax_bx) { + default: + case HAVE_NEITHER: + return lines_compare_x_for_y_general (a, b, y); + case HAVE_AX: + return -line_compare_for_y_against_x (b, y, ax); + case HAVE_BX: + return line_compare_for_y_against_x (a, y, bx); + case HAVE_BOTH: + return ax - bx; + } +} + +static int bbox_compare (const cairo_line_t *a, + const cairo_line_t *b) +{ + int32_t amin, amax; + int32_t bmin, bmax; + + if (a->p1.x < a->p2.x) { + amin = a->p1.x; + amax = a->p2.x; + } else { + amin = a->p2.x; + amax = a->p1.x; + } + + if (b->p1.x < b->p2.x) { + bmin = b->p1.x; + bmax = b->p2.x; + } else { + bmin = b->p2.x; + bmax = b->p1.x; + } + + if (amax < bmin) + return -1; + + if (amin > bmax) + return +1; + + return 0; +} + +int +_cairo_lines_compare_at_y (const cairo_line_t *a, + const cairo_line_t *b, + int y) +{ + cairo_slope_t sa, sb; + int ret; + + if (cairo_lines_equal (a, b)) + return 0; + + /* Don't bother solving for abscissa if the edges' bounding boxes + * can be used to order them. + */ + ret = bbox_compare (a, b); + if (ret) + return ret; + + ret = lines_compare_x_for_y (a, b, y); + if (ret) + return ret; + + _cairo_slope_init (&sa, &a->p1, &a->p2); + _cairo_slope_init (&sb, &b->p1, &b->p2); + + return _cairo_slope_compare (&sb, &sa); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-list-inline.h b/local/recipes/libs/cairo/source/src/cairo-list-inline.h new file mode 100644 index 0000000000..959c038061 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-list-inline.h @@ -0,0 +1,363 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + * + */ + +#ifndef CAIRO_LIST_INLINE_H +#define CAIRO_LIST_INLINE_H + +#include "cairo-list-private.h" + +/*< private > + * cairo_list_entry: + * @ptr: the pointer to the #cairo_list_t member. + * @type: the type of the struct. + * @member: the name of the list_head within the struct. + * + * Return value: the pointer the struct containing the @member that @ptr points to. + **/ +#define cairo_list_entry(ptr, type, member) \ + cairo_container_of(ptr, type, member) + +#define cairo_list_first_entry(ptr, type, member) \ + cairo_list_entry((ptr)->next, type, member) + +#define cairo_list_last_entry(ptr, type, member) \ + cairo_list_entry((ptr)->prev, type, member) + +/*< private > + * cairo_list_foreach: + * @pos: a #cairo_list_t* to use as a loop variable. + * @head: the list. + * + * Iterate the list. @pos points to the #cairo_list_t member of the entry struct. + **/ +#define cairo_list_foreach(pos, head) \ + for (pos = (head)->next; pos != (head); pos = pos->next) + +/*< private > + * cairo_list_foreach_entry: + * @pos: a variable of type T * to use as a loop variable. + * @type: the type of the entry struct + * @head: the list + * @member: the name of the #cairo_list_t member of the entry + * + * Iterate the list of type T. + **/ +#define cairo_list_foreach_entry(pos, type, head, member) \ + for (pos = cairo_list_entry((head)->next, type, member);\ + &pos->member != (head); \ + pos = cairo_list_entry(pos->member.next, type, member)) + +/*< private > + * cairo_list_foreach_entry_safe: + * @pos: a variable of type T * to use as a loop variable. + * @n: a variable of type T * that point to the next item after @pos. + * @type: the type of the entry struct + * @head: the list + * @member: the name of the #cairo_list_t member of the entry + * + * Iterate the list of type T. It is safe to remove items while + * iterating. @n is a temporary variable required to support safe + * iterating. + * + * |[ + * struct foo { + * int a; + * cairo_list_t list; + * } + * + * struct foo linked_list; + * cairo_list_init (&linked_list); + * ... calls to cairo_list_add (entry, &linked_list); + * + * struct foo *pos, *next; + * cairo_list_foreach_entry_safe(pos, next, struct foo, &linked_list, list) { + * printf("%d\n", pos->a); + * cairo_list_del (pos); + * } + * ]| + **/ +#define cairo_list_foreach_entry_safe(pos, n, type, head, member) \ + for (pos = cairo_list_entry ((head)->next, type, member),\ + n = cairo_list_entry (pos->member.next, type, member);\ + &pos->member != (head); \ + pos = n, n = cairo_list_entry (n->member.next, type, member)) + +/*< private > + * cairo_list_foreach_entry: + * @pos: a variable of type T * to use as a loop variable. + * @type: the type of the entry struct + * @head: the list + * @member: the name of the #cairo_list_t member of the entry + * + * Iterate the list of type T in reverse direction. + **/ +#define cairo_list_foreach_entry_reverse(pos, type, head, member) \ + for (pos = cairo_list_entry((head)->prev, type, member);\ + &pos->member != (head); \ + pos = cairo_list_entry(pos->member.prev, type, member)) + +/*< private > + * cairo_list_foreach_entry_safe: + * @pos: a variable of type T * to use as a loop variable. + * @n: a variable of type T * that point to the next item after @pos. + * @type: the type of the entry struct + * @head: the list + * @member: the name of the #cairo_list_t member of the entry + * + * Iterate the list of type T in reverse direction. It is safe to + * remove items while iterating. @n is a temporary variable required + * to support safe iterating. + **/ +#define cairo_list_foreach_entry_reverse_safe(pos, n, type, head, member) \ + for (pos = cairo_list_entry((head)->prev, type, member),\ + n = cairo_list_entry (pos->member.prev, type, member);\ + &pos->member != (head); \ + pos = n, n = cairo_list_entry (n->member.prev, type, member)) + +#ifdef CAIRO_LIST_DEBUG +static inline void +_cairo_list_validate (const cairo_list_t *link) +{ + assert (link->next->prev == link); + assert (link->prev->next == link); +} +static inline void +cairo_list_validate (const cairo_list_t *head) +{ + cairo_list_t *link; + + cairo_list_foreach (link, head) + _cairo_list_validate (link); +} +static inline cairo_bool_t +cairo_list_is_empty (const cairo_list_t *head); +static inline void +cairo_list_validate_is_empty (const cairo_list_t *head) +{ + assert (head->next == NULL || (cairo_list_is_empty (head) && head->next == head->prev)); +} +#else +#define _cairo_list_validate(link) +#define cairo_list_validate(head) +#define cairo_list_validate_is_empty(head) +#endif + +/*< private > + * cairo_list_init: + * @entry: list entry to initialize + * + * Initializes the list entry to point to itself. The result is an + * empty list. + **/ +static inline void +cairo_list_init (cairo_list_t *entry) +{ + entry->next = entry; + entry->prev = entry; +} + +static inline void +__cairo_list_add (cairo_list_t *entry, + cairo_list_t *prev, + cairo_list_t *next) +{ + next->prev = entry; + entry->next = next; + entry->prev = prev; + prev->next = entry; +} + +/*< private > + * cairo_list_add: + * @entry: new entry + * @head: linked list head + * + * Insert a @entry at the start of the list. + **/ +static inline void +cairo_list_add (cairo_list_t *entry, cairo_list_t *head) +{ + cairo_list_validate (head); + cairo_list_validate_is_empty (entry); + __cairo_list_add (entry, head, head->next); + cairo_list_validate (head); +} + +/*< private > + * cairo_list_add_tail: + * @entry: new entry + * @head: linked list head + * + * Append a @entry to the end of the list. + **/ +static inline void +cairo_list_add_tail (cairo_list_t *entry, cairo_list_t *head) +{ + cairo_list_validate (head); + cairo_list_validate_is_empty (entry); + __cairo_list_add (entry, head->prev, head); + cairo_list_validate (head); +} + +static inline void +__cairo_list_del (cairo_list_t *prev, cairo_list_t *next) +{ + next->prev = prev; + prev->next = next; +} + +static inline void +_cairo_list_del (cairo_list_t *entry) +{ + __cairo_list_del (entry->prev, entry->next); +} + +/*< private > + * cairo_list_del: + * @entry: entry to remove + * + * Remove @entry from the list it is in. + **/ +static inline void +cairo_list_del (cairo_list_t *entry) +{ + _cairo_list_del (entry); + cairo_list_init (entry); +} + +/*< private > + * cairo_list_move: + * @entry: entry to move + * @head: linked list to move @entry to + * + * Remove @entry from the list it is in and insert it at the start of @head list. + **/ +static inline void +cairo_list_move (cairo_list_t *entry, cairo_list_t *head) +{ + cairo_list_validate (head); + __cairo_list_del (entry->prev, entry->next); + __cairo_list_add (entry, head, head->next); + cairo_list_validate (head); +} + +/*< private > + * cairo_list_move_tail: + * @entry: entry tp move + * @head: linked list to move @entry to + * + * Remove @entry from the list it is in and append it to the end of @head list. + **/ +static inline void +cairo_list_move_tail (cairo_list_t *entry, cairo_list_t *head) +{ + cairo_list_validate (head); + __cairo_list_del (entry->prev, entry->next); + __cairo_list_add (entry, head->prev, head); + cairo_list_validate (head); +} + +/*< private > + * cairo_list_move_list: + * @old: List to move + * @new: List to move to. Should be empty, + * + * Move @old list to @new list, fixing up the references. + **/ +static inline void +cairo_list_move_list (cairo_list_t *old, cairo_list_t *new) +{ + __cairo_list_add (new, old->prev, old->next); + cairo_list_init (old); +} + +/*< private > + * cairo_list_is_first: + * @entry: entry to check + * @head: linked list + * + * Return %TRUE if @entry is the first item in @head. + **/ +static inline cairo_bool_t +cairo_list_is_first (const cairo_list_t *entry, + const cairo_list_t *head) +{ + cairo_list_validate (head); + return entry->prev == head; +} + +/*< private > + * cairo_list_is_last: + * @entry: entry to check + * @head: linked list + * + * Return %TRUE if @entry is the last item in @head. + **/ +static inline cairo_bool_t +cairo_list_is_last (const cairo_list_t *entry, + const cairo_list_t *head) +{ + cairo_list_validate (head); + return entry->next == head; +} + +/*< private > + * cairo_list_is_empty: + * @head: linked list + * + * Return %TRUE if @head is empty. + **/ +static inline cairo_bool_t +cairo_list_is_empty (const cairo_list_t *head) +{ + cairo_list_validate (head); + return head->next == head; +} + +/*< private > + * cairo_list_is_singular: + * @head: linked list + * + * Return %TRUE if @head has only one entry. + **/ +static inline cairo_bool_t +cairo_list_is_singular (const cairo_list_t *head) +{ + cairo_list_validate (head); + return head->next != head && head->next == head->prev; +} + +#endif /* CAIRO_LIST_INLINE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-list-private.h b/local/recipes/libs/cairo/source/src/cairo-list-private.h new file mode 100644 index 0000000000..9f39b668f8 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-list-private.h @@ -0,0 +1,48 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + * + */ + +#ifndef CAIRO_LIST_PRIVATE_H +#define CAIRO_LIST_PRIVATE_H + +#include "cairo-compiler-private.h" + +/* Basic circular, doubly linked list implementation */ + +typedef struct _cairo_list { + struct _cairo_list *next, *prev; +} cairo_list_t; + +#endif /* CAIRO_LIST_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-lzw.c b/local/recipes/libs/cairo/source/src/cairo-lzw.c new file mode 100644 index 0000000000..e17cdfc1c7 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-lzw.c @@ -0,0 +1,407 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" +#include "cairo-error-private.h" + +typedef struct _lzw_buf { + cairo_status_t status; + + unsigned char *data; + int data_size; + int num_data; + uint32_t pending; + unsigned int pending_bits; +} lzw_buf_t; + +/* An lzw_buf_t is a simple, growable chunk of memory for holding + * variable-size objects of up to 16 bits each. + * + * Initialize an lzw_buf_t to the given size in bytes. + * + * To store objects into the lzw_buf_t, call _lzw_buf_store_bits and + * when finished, call _lzw_buf_store_pending, (which flushes out the + * last few bits that hadn't yet made a complete byte yet). + * + * Instead of returning failure from any functions, lzw_buf_t provides + * a status value that the caller can query, (and should query at + * least once when done with the object). The status value will be + * either %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY; + */ +static void +_lzw_buf_init (lzw_buf_t *buf, int size) +{ + if (size == 0) + size = 16; + + buf->status = CAIRO_STATUS_SUCCESS; + buf->data_size = size; + buf->num_data = 0; + buf->pending = 0; + buf->pending_bits = 0; + + buf->data = _cairo_malloc (size); + if (unlikely (buf->data == NULL)) { + buf->data_size = 0; + buf->status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + return; + } +} + +/* Increase the buffer size by doubling. + * + * Returns %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY + */ +static cairo_status_t +_lzw_buf_grow (lzw_buf_t *buf) +{ + int new_size = buf->data_size * 2; + unsigned char *new_data; + + if (buf->status) + return buf->status; + + new_data = NULL; + /* check for integer overflow */ + if (new_size / 2 == buf->data_size) + new_data = realloc (buf->data, new_size); + + if (unlikely (new_data == NULL)) { + free (buf->data); + buf->data_size = 0; + buf->status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + return buf->status; + } + + buf->data = new_data; + buf->data_size = new_size; + + return CAIRO_STATUS_SUCCESS; +} + +/* Store the lowest num_bits bits of values into buf. + * + * Note: The bits of value above size_in_bits must be 0, (so don't lie + * about the size). + * + * See also _lzw_buf_store_pending which must be called after the last + * call to _lzw_buf_store_bits. + * + * Sets buf->status to either %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY. + */ +static void +_lzw_buf_store_bits (lzw_buf_t *buf, uint16_t value, int num_bits) +{ + cairo_status_t status; + + assert (value <= (1 << num_bits) - 1); + + if (buf->status) + return; + + buf->pending = (buf->pending << num_bits) | value; + buf->pending_bits += num_bits; + + while (buf->pending_bits >= 8) { + if (buf->num_data >= buf->data_size) { + status = _lzw_buf_grow (buf); + if (unlikely (status)) + return; + } + buf->data[buf->num_data++] = buf->pending >> (buf->pending_bits - 8); + buf->pending_bits -= 8; + } +} + +/* Store the last remaining pending bits into the buffer. + * + * Note: This function must be called after the last call to + * _lzw_buf_store_bits. + * + * Sets buf->status to either %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY. + */ +static void +_lzw_buf_store_pending (lzw_buf_t *buf) +{ + cairo_status_t status; + + if (buf->status) + return; + + if (buf->pending_bits == 0) + return; + + assert (buf->pending_bits < 8); + + if (buf->num_data >= buf->data_size) { + status = _lzw_buf_grow (buf); + if (unlikely (status)) + return; + } + + buf->data[buf->num_data++] = buf->pending << (8 - buf->pending_bits); + buf->pending_bits = 0; +} + +/* LZW defines a few magic code values */ +#define LZW_CODE_CLEAR_TABLE 256 +#define LZW_CODE_EOD 257 +#define LZW_CODE_FIRST 258 + +/* We pack three separate values into a symbol as follows: + * + * 12 bits (31 down to 20): CODE: code value used to represent this symbol + * 12 bits (19 down to 8): PREV: previous code value in chain + * 8 bits ( 7 down to 0): NEXT: next byte value in chain + */ +typedef uint32_t lzw_symbol_t; + +#define LZW_SYMBOL_SET(sym, prev, next) ((sym) = ((prev) << 8)|(next)) +#define LZW_SYMBOL_SET_CODE(sym, code, prev, next) ((sym) = ((code << 20)|(prev) << 8)|(next)) +#define LZW_SYMBOL_GET_CODE(sym) (((sym) >> 20)) +#define LZW_SYMBOL_GET_PREV(sym) (((sym) >> 8) & 0x7ff) +#define LZW_SYMBOL_GET_BYTE(sym) (((sym) >> 0) & 0x0ff) + +/* The PREV+NEXT fields can be seen as the key used to fetch values + * from the hash table, while the code is the value fetched. + */ +#define LZW_SYMBOL_KEY_MASK 0x000fffff + +/* Since code values are only stored starting with 258 we can safely + * use a zero value to represent free slots in the hash table. */ +#define LZW_SYMBOL_FREE 0x00000000 + +/* These really aren't very free for modifying. First, the PostScript + * specification sets the 9-12 bit range. Second, the encoding of + * lzw_symbol_t above also relies on 2 of LZW_BITS_MAX plus one byte + * fitting within 32 bits. + * + * But other than that, the LZW compression scheme could function with + * more bits per code. + */ +#define LZW_BITS_MIN 9 +#define LZW_BITS_MAX 12 +#define LZW_BITS_BOUNDARY(bits) ((1<<(bits))-1) +#define LZW_MAX_SYMBOLS (1<table, 0, LZW_SYMBOL_TABLE_SIZE * sizeof (lzw_symbol_t)); +} + +/* Lookup a symbol in the symbol table. The PREV and NEXT fields of + * symbol form the key for the lookup. + * + * If successful, then this function returns %TRUE and slot_ret will be + * left pointing at the result that will have the CODE field of + * interest. + * + * If the lookup fails, then this function returns %FALSE and slot_ret + * will be pointing at the location in the table to which a new CODE + * value should be stored along with PREV and NEXT. + */ +static cairo_bool_t +_lzw_symbol_table_lookup (lzw_symbol_table_t *table, + lzw_symbol_t symbol, + lzw_symbol_t **slot_ret) +{ + /* The algorithm here is identical to that in cairo-hash.c. We + * copy it here to allow for a rather more efficient + * implementation due to several circumstances that do not apply + * to the more general case: + * + * 1) We have a known bound on the total number of symbols, so we + * have a fixed-size table without any copying when growing + * + * 2) We never delete any entries, so we don't need to + * support/check for DEAD entries during lookup. + * + * 3) The object fits in 32 bits so we store each object in its + * entirety within the table rather than storing objects + * externally and putting pointers in the table, (which here + * would just double the storage requirements and have negative + * impacts on memory locality). + */ + int i, idx, step, hash = symbol & LZW_SYMBOL_KEY_MASK; + lzw_symbol_t candidate; + + idx = hash % LZW_SYMBOL_MOD1; + step = 0; + + *slot_ret = NULL; + for (i = 0; i < LZW_SYMBOL_TABLE_SIZE; i++) + { + candidate = table->table[idx]; + if (candidate == LZW_SYMBOL_FREE) + { + *slot_ret = &table->table[idx]; + return FALSE; + } + else /* candidate is LIVE */ + { + if ((candidate & LZW_SYMBOL_KEY_MASK) == + (symbol & LZW_SYMBOL_KEY_MASK)) + { + *slot_ret = &table->table[idx]; + return TRUE; + } + } + + if (step == 0) { + step = hash % LZW_SYMBOL_MOD2; + if (step == 0) + step = 1; + } + + idx += step; + if (idx >= LZW_SYMBOL_TABLE_SIZE) + idx -= LZW_SYMBOL_TABLE_SIZE; + } + + return FALSE; +} + +/* Compress a bytestream using the LZW algorithm. + * + * This is an original implementation based on reading the + * specification of the LZWDecode filter in the PostScript Language + * Reference. The free parameters in the LZW algorithm are set to the + * values mandated by PostScript, (symbols encoded with widths from 9 + * to 12 bits). + * + * This function returns a pointer to a newly allocated buffer holding + * the compressed data, or %NULL if an out-of-memory situation + * occurs. + * + * Notice that any one of the _lzw_buf functions called here could + * trigger an out-of-memory condition. But lzw_buf_t uses cairo's + * shutdown-on-error idiom, so it's safe to continue to call into + * lzw_buf without having to check for errors, (until a final check at + * the end). + */ +unsigned char * +_cairo_lzw_compress (unsigned char *data, unsigned long *size_in_out) +{ + int bytes_remaining = *size_in_out; + lzw_buf_t buf; + lzw_symbol_table_t table; + lzw_symbol_t symbol, *slot = NULL; /* just to squelch a warning */ + int code_next = LZW_CODE_FIRST; + int code_bits = LZW_BITS_MIN; + int prev, next = 0; /* just to squelch a warning */ + + if (*size_in_out == 0) + return NULL; + + _lzw_buf_init (&buf, *size_in_out); + + _lzw_symbol_table_init (&table); + + /* The LZW header is a clear table code. */ + _lzw_buf_store_bits (&buf, LZW_CODE_CLEAR_TABLE, code_bits); + + while (1) { + + /* Find the longest existing code in the symbol table that + * matches the current input, if any. */ + prev = *data++; + bytes_remaining--; + if (bytes_remaining) { + do + { + next = *data++; + bytes_remaining--; + LZW_SYMBOL_SET (symbol, prev, next); + if (_lzw_symbol_table_lookup (&table, symbol, &slot)) + prev = LZW_SYMBOL_GET_CODE (*slot); + } while (bytes_remaining && *slot != LZW_SYMBOL_FREE); + if (*slot == LZW_SYMBOL_FREE) { + data--; + bytes_remaining++; + } + } + + /* Write the code into the output. This is either a byte read + * directly from the input, or a code from the last successful + * lookup. */ + _lzw_buf_store_bits (&buf, prev, code_bits); + + if (likely (slot != NULL)) + LZW_SYMBOL_SET_CODE (*slot, code_next, prev, next); + + code_next++; + + if (code_next > LZW_BITS_BOUNDARY(code_bits)) + { + code_bits++; + if (code_bits > LZW_BITS_MAX) { + _lzw_symbol_table_init (&table); + _lzw_buf_store_bits (&buf, LZW_CODE_CLEAR_TABLE, code_bits - 1); + code_bits = LZW_BITS_MIN; + code_next = LZW_CODE_FIRST; + } + } + + if (bytes_remaining == 0) + break; + } + + /* The LZW footer is an end-of-data code. */ + _lzw_buf_store_bits (&buf, LZW_CODE_EOD, code_bits); + + _lzw_buf_store_pending (&buf); + + /* See if we ever ran out of memory while writing to buf. */ + if (buf.status == CAIRO_STATUS_NO_MEMORY) { + *size_in_out = 0; + return NULL; + } + + assert (buf.status == CAIRO_STATUS_SUCCESS); + + *size_in_out = buf.num_data; + return buf.data; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-malloc-private.h b/local/recipes/libs/cairo/source/src/cairo-malloc-private.h new file mode 100644 index 0000000000..b850c475cd --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-malloc-private.h @@ -0,0 +1,218 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2007 Mozilla Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Mozilla Foundation + * + * Contributor(s): + * Vladimir Vukicevic + */ + +#ifndef CAIRO_MALLOC_PRIVATE_H +#define CAIRO_MALLOC_PRIVATE_H + +#include "cairo-wideint-private.h" +#include + +#if HAVE_MEMFAULT +#include +#define CAIRO_INJECT_FAULT() MEMFAULT_INJECT_FAULT() +#else +#define CAIRO_INJECT_FAULT() 0 +#endif + +/** + * _cairo_malloc: + * @size: size in bytes + * + * Allocate @size memory using malloc(). + * The memory should be freed using free(). + * malloc is skipped, if 0 bytes are requested, and %NULL will be returned. + * + * Return value: A pointer to the newly allocated memory, or %NULL in + * case of malloc() failure or size is 0. + **/ + +#define _cairo_malloc(size) \ + ((size) != 0 ? malloc(size) : NULL) + +/** + * _cairo_calloc: + * @size: size of each element + * + * Allocates @size memory using calloc(). Behaves much like + * calloc(), except that only one parameter is required. + * The memory should be freed using free(). + * calloc is skipped, if 0 bytes are requested, and %NULL will be returned. + * + * Return value: A pointer to the newly allocated memory, or %NULL in + * case of calloc() failure or overflow. + **/ + +#define _cairo_calloc(size) \ + ((size) != 0 ? calloc(1,size) : NULL) + +/** + * _cairo_malloc_ab: + * @a: number of elements to allocate + * @size: size of each element + * + * Allocates @a*@size memory using _cairo_malloc(), taking care to not + * overflow when doing the multiplication. Behaves much like + * calloc(), except that the returned memory is not set to zero. + * The memory should be freed using free(). + * + * @size should be a constant so that the compiler can optimize + * out a constant division. + * + * Return value: A pointer to the newly allocated memory, or %NULL in + * case of malloc() failure or overflow. + **/ + +static cairo_always_inline void * +_cairo_malloc_ab(size_t a, size_t size) +{ + size_t c; + if (_cairo_mul_size_t_overflow (a, size, &c)) + return NULL; + + return _cairo_malloc(c); +} + +/** + * _cairo_calloc_ab: + * @a: number of elements to allocate + * @size: size of each element + * + * Allocates @a*@size memory using _cairo_calloc(), taking care to not + * overflow when doing the multiplication. + * + * @size should be a constant so that the compiler can optimize + * out a constant division. + * + * Return value: A pointer to the newly allocated memory, or %NULL in + * case of calloc() failure or overflow. + **/ + +static cairo_always_inline void * +_cairo_calloc_ab(size_t a, size_t size) +{ + size_t c; + if (_cairo_mul_size_t_overflow (a, size, &c)) + return NULL; + + return _cairo_calloc(c); +} + +/** + * _cairo_realloc_ab: + * @ptr: original pointer to block of memory to be resized + * @a: number of elements to allocate + * @size: size of each element + * + * Reallocates @ptr a block of @a*@size memory using realloc(), taking + * care to not overflow when doing the multiplication. The memory + * should be freed using free(). + * + * @size should be a constant so that the compiler can optimize + * out a constant division. + * + * Return value: A pointer to the newly allocated memory, or %NULL in + * case of realloc() failure or overflow (whereupon the original block + * of memory * is left untouched). + **/ + +static cairo_always_inline void * +_cairo_realloc_ab(void *ptr, size_t a, size_t size) +{ + size_t c; + if (_cairo_mul_size_t_overflow (a, size, &c)) + return NULL; + + return realloc(ptr, c); +} + +/** + * _cairo_malloc_abc: + * @a: first factor of number of elements to allocate + * @b: second factor of number of elements to allocate + * @size: size of each element + * + * Allocates @a*@b*@size memory using _cairo_malloc(), taking care to not + * overflow when doing the multiplication. Behaves like + * _cairo_malloc_ab(). The memory should be freed using free(). + * + * @size should be a constant so that the compiler can optimize + * out a constant division. + * + * Return value: A pointer to the newly allocated memory, or %NULL in + * case of malloc() failure or overflow. + **/ + +static cairo_always_inline void * +_cairo_malloc_abc(size_t a, size_t b, size_t size) +{ + size_t c, d; + if (_cairo_mul_size_t_overflow (a, b, &c)) + return NULL; + + if (_cairo_mul_size_t_overflow (c, size, &d)) + return NULL; + + return _cairo_malloc(d); +} + +/** + * _cairo_malloc_ab_plus_c: + * @a: number of elements to allocate + * @size: size of each element + * @c: additional size to allocate + * + * Allocates @a*@size+@c memory using _cairo_malloc(), taking care to not + * overflow when doing the arithmetic. Behaves similar to + * _cairo_malloc_ab(). The memory should be freed using free(). + * + * Return value: A pointer to the newly allocated memory, or %NULL in + * case of malloc() failure or overflow. + **/ + +static cairo_always_inline void * +_cairo_malloc_ab_plus_c(size_t a, size_t size, size_t c) +{ + size_t d, e; + if (_cairo_mul_size_t_overflow (a, size, &d)) + return NULL; + + if (_cairo_add_size_t_overflow (d, c, &e)) + return NULL; + + return _cairo_malloc(e); +} + +#endif /* CAIRO_MALLOC_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-mask-compositor.c b/local/recipes/libs/cairo/source/src/cairo-mask-compositor.c new file mode 100644 index 0000000000..4d6b118dda --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-mask-compositor.c @@ -0,0 +1,1481 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Joonas Pihlaja + * Chris Wilson + */ + +/* This compositor renders the shape to a mask using an image surface + * then calls composite. + */ + +#include "cairoint.h" + +#include "cairo-clip-inline.h" +#include "cairo-compositor-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-pattern-inline.h" +#include "cairo-region-private.h" +#include "cairo-surface-observer-private.h" +#include "cairo-surface-offset-private.h" +#include "cairo-surface-snapshot-private.h" +#include "cairo-surface-subsurface-private.h" + +typedef cairo_int_status_t +(*draw_func_t) (const cairo_mask_compositor_t *compositor, + cairo_surface_t *dst, + void *closure, + cairo_operator_t op, + const cairo_pattern_t *src, + const cairo_rectangle_int_t *src_sample, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip); + +static void do_unaligned_row(void (*blt)(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage), + void *closure, + const cairo_box_t *b, + int tx, int y, int h, + uint16_t coverage) +{ + int x1 = _cairo_fixed_integer_part (b->p1.x) - tx; + int x2 = _cairo_fixed_integer_part (b->p2.x) - tx; + if (x2 > x1) { + if (! _cairo_fixed_is_integer (b->p1.x)) { + blt(closure, x1, y, 1, h, + coverage * (256 - _cairo_fixed_fractional_part (b->p1.x))); + x1++; + } + + if (x2 > x1) + blt(closure, x1, y, x2-x1, h, (coverage << 8) - (coverage >> 8)); + + if (! _cairo_fixed_is_integer (b->p2.x)) + blt(closure, x2, y, 1, h, + coverage * _cairo_fixed_fractional_part (b->p2.x)); + } else + blt(closure, x1, y, 1, h, + coverage * (b->p2.x - b->p1.x)); +} + +static void do_unaligned_box(void (*blt)(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage), + void *closure, + const cairo_box_t *b, int tx, int ty) +{ + int y1 = _cairo_fixed_integer_part (b->p1.y) - ty; + int y2 = _cairo_fixed_integer_part (b->p2.y) - ty; + if (y2 > y1) { + if (! _cairo_fixed_is_integer (b->p1.y)) { + do_unaligned_row(blt, closure, b, tx, y1, 1, + 256 - _cairo_fixed_fractional_part (b->p1.y)); + y1++; + } + + if (y2 > y1) + do_unaligned_row(blt, closure, b, tx, y1, y2-y1, 256); + + if (! _cairo_fixed_is_integer (b->p2.y)) + do_unaligned_row(blt, closure, b, tx, y2, 1, + _cairo_fixed_fractional_part (b->p2.y)); + } else + do_unaligned_row(blt, closure, b, tx, y1, 1, + b->p2.y - b->p1.y); +} + +struct blt_in { + const cairo_mask_compositor_t *compositor; + cairo_surface_t *dst; +}; + +static void blt_in(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage) +{ + struct blt_in *info = closure; + cairo_color_t color; + cairo_rectangle_int_t rect; + + if (coverage == 0xffff) + return; + + rect.x = x; + rect.y = y; + rect.width = w; + rect.height = h; + + _cairo_color_init_rgba (&color, 0, 0, 0, coverage / (double) 0xffff); + info->compositor->fill_rectangles (info->dst, CAIRO_OPERATOR_IN, + &color, &rect, 1); +} + +static cairo_surface_t * +create_composite_mask (const cairo_mask_compositor_t *compositor, + cairo_surface_t *dst, + void *draw_closure, + draw_func_t draw_func, + draw_func_t mask_func, + const cairo_composite_rectangles_t *extents) +{ + cairo_surface_t *surface; + cairo_int_status_t status; + struct blt_in info; + int i; + + surface = _cairo_surface_create_scratch (dst, CAIRO_CONTENT_ALPHA, + extents->bounded.width, + extents->bounded.height, + NULL); + if (unlikely (surface->status)) + return surface; + + status = compositor->acquire (surface); + if (unlikely (status)) { + cairo_surface_destroy (surface); + return _cairo_int_surface_create_in_error (status); + } + + if (!surface->is_clear) { + cairo_rectangle_int_t rect; + + rect.x = rect.y = 0; + rect.width = extents->bounded.width; + rect.height = extents->bounded.height; + + status = compositor->fill_rectangles (surface, CAIRO_OPERATOR_CLEAR, + CAIRO_COLOR_TRANSPARENT, + &rect, 1); + if (unlikely (status)) + goto error; + } + + if (mask_func) { + status = mask_func (compositor, surface, draw_closure, + CAIRO_OPERATOR_SOURCE, NULL, NULL, + extents->bounded.x, extents->bounded.y, + &extents->bounded, extents->clip); + if (likely (status != CAIRO_INT_STATUS_UNSUPPORTED)) + goto out; + } + + /* Is it worth setting the clip region here? */ + status = draw_func (compositor, surface, draw_closure, + CAIRO_OPERATOR_ADD, NULL, NULL, + extents->bounded.x, extents->bounded.y, + &extents->bounded, NULL); + if (unlikely (status)) + goto error; + + info.compositor = compositor; + info.dst = surface; + for (i = 0; i < extents->clip->num_boxes; i++) { + cairo_box_t *b = &extents->clip->boxes[i]; + + if (! _cairo_fixed_is_integer (b->p1.x) || + ! _cairo_fixed_is_integer (b->p1.y) || + ! _cairo_fixed_is_integer (b->p2.x) || + ! _cairo_fixed_is_integer (b->p2.y)) + { + do_unaligned_box(blt_in, &info, b, + extents->bounded.x, + extents->bounded.y); + } + } + + if (extents->clip->path != NULL) { + status = _cairo_clip_combine_with_surface (extents->clip, surface, + extents->bounded.x, + extents->bounded.y); + if (unlikely (status)) + goto error; + } + +out: + compositor->release (surface); + surface->is_clear = FALSE; + return surface; + +error: + compositor->release (surface); + if (status != CAIRO_INT_STATUS_NOTHING_TO_DO) { + cairo_surface_destroy (surface); + surface = _cairo_int_surface_create_in_error (status); + } + return surface; +} + +/* Handles compositing with a clip surface when the operator allows + * us to combine the clip with the mask + */ +static cairo_status_t +clip_and_composite_with_mask (const cairo_mask_compositor_t *compositor, + void *draw_closure, + draw_func_t draw_func, + draw_func_t mask_func, + cairo_operator_t op, + cairo_pattern_t *pattern, + const cairo_composite_rectangles_t*extents) +{ + cairo_surface_t *dst = extents->surface; + cairo_surface_t *mask, *src; + int src_x, src_y; + + mask = create_composite_mask (compositor, dst, draw_closure, + draw_func, mask_func, + extents); + if (unlikely (mask->status)) + return mask->status; + + if (pattern != NULL || dst->content != CAIRO_CONTENT_ALPHA) { + src = compositor->pattern_to_surface (dst, + &extents->source_pattern.base, + FALSE, + &extents->bounded, + &extents->source_sample_area, + &src_x, &src_y); + if (unlikely (src->status)) { + cairo_surface_destroy (mask); + return src->status; + } + + compositor->composite (dst, op, src, mask, + extents->bounded.x + src_x, + extents->bounded.y + src_y, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + + cairo_surface_destroy (src); + } else { + compositor->composite (dst, op, mask, NULL, + 0, 0, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + } + cairo_surface_destroy (mask); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_surface_t * +get_clip_source (const cairo_mask_compositor_t *compositor, + cairo_clip_t *clip, + cairo_surface_t *dst, + const cairo_rectangle_int_t *bounds, + int *out_x, int *out_y) +{ + cairo_surface_pattern_t pattern; + cairo_rectangle_int_t r; + cairo_surface_t *surface; + + surface = _cairo_clip_get_image (clip, dst, bounds); + if (unlikely (surface->status)) + return surface; + + _cairo_pattern_init_for_surface (&pattern, surface); + pattern.base.filter = CAIRO_FILTER_NEAREST; + cairo_surface_destroy (surface); + + r.x = r.y = 0; + r.width = bounds->width; + r.height = bounds->height; + + surface = compositor->pattern_to_surface (dst, &pattern.base, TRUE, + &r, &r, out_x, out_y); + _cairo_pattern_fini (&pattern.base); + + *out_x += -bounds->x; + *out_y += -bounds->y; + return surface; +} + +/* Handles compositing with a clip surface when we have to do the operation + * in two pieces and combine them together. + */ +static cairo_status_t +clip_and_composite_combine (const cairo_mask_compositor_t *compositor, + void *draw_closure, + draw_func_t draw_func, + cairo_operator_t op, + const cairo_pattern_t *pattern, + const cairo_composite_rectangles_t*extents) +{ + cairo_surface_t *dst = extents->surface; + cairo_surface_t *tmp, *clip; + cairo_status_t status; + int clip_x, clip_y; + + tmp = _cairo_surface_create_scratch (dst, dst->content, + extents->bounded.width, + extents->bounded.height, + NULL); + if (unlikely (tmp->status)) + return tmp->status; + + compositor->composite (tmp, CAIRO_OPERATOR_SOURCE, dst, NULL, + extents->bounded.x, extents->bounded.y, + 0, 0, + 0, 0, + extents->bounded.width, extents->bounded.height); + + status = draw_func (compositor, tmp, draw_closure, op, + pattern, &extents->source_sample_area, + extents->bounded.x, extents->bounded.y, + &extents->bounded, NULL); + if (unlikely (status)) + goto cleanup; + + clip = get_clip_source (compositor, + extents->clip, dst, &extents->bounded, + &clip_x, &clip_y); + if (unlikely ((status = clip->status))) + goto cleanup; + + if (dst->is_clear) { + compositor->composite (dst, CAIRO_OPERATOR_SOURCE, tmp, clip, + 0, 0, + clip_x, clip_y, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + } else { + /* Punch the clip out of the destination */ + compositor->composite (dst, CAIRO_OPERATOR_DEST_OUT, clip, NULL, + clip_x, clip_y, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + + /* Now add the two results together */ + compositor->composite (dst, CAIRO_OPERATOR_ADD, tmp, clip, + 0, 0, + clip_x, clip_y, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + } + cairo_surface_destroy (clip); + +cleanup: + cairo_surface_destroy (tmp); + return status; +} + +/* Handles compositing for %CAIRO_OPERATOR_SOURCE, which is special; it's + * defined as (src IN mask IN clip) ADD (dst OUT (mask IN clip)) + */ +static cairo_status_t +clip_and_composite_source (const cairo_mask_compositor_t *compositor, + void *draw_closure, + draw_func_t draw_func, + draw_func_t mask_func, + cairo_pattern_t *pattern, + const cairo_composite_rectangles_t *extents) +{ + cairo_surface_t *dst = extents->surface; + cairo_surface_t *mask, *src; + int src_x, src_y; + + /* Create a surface that is mask IN clip */ + mask = create_composite_mask (compositor, dst, draw_closure, + draw_func, mask_func, + extents); + if (unlikely (mask->status)) + return mask->status; + + src = compositor->pattern_to_surface (dst, + pattern, + FALSE, + &extents->bounded, + &extents->source_sample_area, + &src_x, &src_y); + if (unlikely (src->status)) { + cairo_surface_destroy (mask); + return src->status; + } + + if (dst->is_clear) { + compositor->composite (dst, CAIRO_OPERATOR_SOURCE, src, mask, + extents->bounded.x + src_x, extents->bounded.y + src_y, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + } else { + /* Compute dest' = dest OUT (mask IN clip) */ + compositor->composite (dst, CAIRO_OPERATOR_DEST_OUT, mask, NULL, + 0, 0, 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + + /* Now compute (src IN (mask IN clip)) ADD dest' */ + compositor->composite (dst, CAIRO_OPERATOR_ADD, src, mask, + extents->bounded.x + src_x, extents->bounded.y + src_y, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + } + + cairo_surface_destroy (src); + cairo_surface_destroy (mask); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +can_reduce_alpha_op (cairo_operator_t op) +{ + int iop = op; + switch (iop) { + case CAIRO_OPERATOR_OVER: + case CAIRO_OPERATOR_SOURCE: + case CAIRO_OPERATOR_ADD: + return TRUE; + default: + return FALSE; + } +} + +static cairo_bool_t +reduce_alpha_op (cairo_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *pattern) +{ + return dst->is_clear && + dst->content == CAIRO_CONTENT_ALPHA && + _cairo_pattern_is_opaque_solid (pattern) && + can_reduce_alpha_op (op); +} + +static cairo_status_t +fixup_unbounded (const cairo_mask_compositor_t *compositor, + cairo_surface_t *dst, + const cairo_composite_rectangles_t *extents) +{ + cairo_rectangle_int_t rects[4]; + int n; + + if (extents->bounded.width == extents->unbounded.width && + extents->bounded.height == extents->unbounded.height) + { + return CAIRO_STATUS_SUCCESS; + } + + n = 0; + if (extents->bounded.width == 0 || extents->bounded.height == 0) { + rects[n].x = extents->unbounded.x; + rects[n].width = extents->unbounded.width; + rects[n].y = extents->unbounded.y; + rects[n].height = extents->unbounded.height; + n++; + } else { + /* top */ + if (extents->bounded.y != extents->unbounded.y) { + rects[n].x = extents->unbounded.x; + rects[n].width = extents->unbounded.width; + rects[n].y = extents->unbounded.y; + rects[n].height = extents->bounded.y - extents->unbounded.y; + n++; + } + /* left */ + if (extents->bounded.x != extents->unbounded.x) { + rects[n].x = extents->unbounded.x; + rects[n].width = extents->bounded.x - extents->unbounded.x; + rects[n].y = extents->bounded.y; + rects[n].height = extents->bounded.height; + n++; + } + /* right */ + if (extents->bounded.x + extents->bounded.width != extents->unbounded.x + extents->unbounded.width) { + rects[n].x = extents->bounded.x + extents->bounded.width; + rects[n].width = extents->unbounded.x + extents->unbounded.width - rects[n].x; + rects[n].y = extents->bounded.y; + rects[n].height = extents->bounded.height; + n++; + } + /* bottom */ + if (extents->bounded.y + extents->bounded.height != extents->unbounded.y + extents->unbounded.height) { + rects[n].x = extents->unbounded.x; + rects[n].width = extents->unbounded.width; + rects[n].y = extents->bounded.y + extents->bounded.height; + rects[n].height = extents->unbounded.y + extents->unbounded.height - rects[n].y; + n++; + } + } + + return compositor->fill_rectangles (dst, CAIRO_OPERATOR_CLEAR, + CAIRO_COLOR_TRANSPARENT, + rects, n); +} + +static cairo_status_t +fixup_unbounded_with_mask (const cairo_mask_compositor_t *compositor, + cairo_surface_t *dst, + const cairo_composite_rectangles_t *extents) +{ + cairo_surface_t *mask; + int mask_x, mask_y; + + mask = get_clip_source (compositor, + extents->clip, dst, &extents->unbounded, + &mask_x, &mask_y); + if (unlikely (mask->status)) + return mask->status; + + /* top */ + if (extents->bounded.y != extents->unbounded.y) { + int x = extents->unbounded.x; + int y = extents->unbounded.y; + int width = extents->unbounded.width; + int height = extents->bounded.y - y; + + compositor->composite (dst, CAIRO_OPERATOR_DEST_OUT, mask, NULL, + x + mask_x, y + mask_y, + 0, 0, + x, y, + width, height); + } + + /* left */ + if (extents->bounded.x != extents->unbounded.x) { + int x = extents->unbounded.x; + int y = extents->bounded.y; + int width = extents->bounded.x - x; + int height = extents->bounded.height; + + compositor->composite (dst, CAIRO_OPERATOR_DEST_OUT, mask, NULL, + x + mask_x, y + mask_y, + 0, 0, + x, y, + width, height); + } + + /* right */ + if (extents->bounded.x + extents->bounded.width != extents->unbounded.x + extents->unbounded.width) { + int x = extents->bounded.x + extents->bounded.width; + int y = extents->bounded.y; + int width = extents->unbounded.x + extents->unbounded.width - x; + int height = extents->bounded.height; + + compositor->composite (dst, CAIRO_OPERATOR_DEST_OUT, mask, NULL, + x + mask_x, y + mask_y, + 0, 0, + x, y, + width, height); + } + + /* bottom */ + if (extents->bounded.y + extents->bounded.height != extents->unbounded.y + extents->unbounded.height) { + int x = extents->unbounded.x; + int y = extents->bounded.y + extents->bounded.height; + int width = extents->unbounded.width; + int height = extents->unbounded.y + extents->unbounded.height - y; + + compositor->composite (dst, CAIRO_OPERATOR_DEST_OUT, mask, NULL, + x + mask_x, y + mask_y, + 0, 0, + x, y, + width, height); + } + + cairo_surface_destroy (mask); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +fixup_unbounded_boxes (const cairo_mask_compositor_t *compositor, + const cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_surface_t *dst = extents->surface; + cairo_boxes_t clear; + cairo_region_t *clip_region; + cairo_box_t box; + cairo_status_t status; + struct _cairo_boxes_chunk *chunk; + int i; + + assert (boxes->is_pixel_aligned); + + clip_region = NULL; + if (_cairo_clip_is_region (extents->clip) && + (clip_region = _cairo_clip_get_region (extents->clip)) && + cairo_region_contains_rectangle (clip_region, + &extents->bounded) == CAIRO_REGION_OVERLAP_IN) + clip_region = NULL; + + + if (boxes->num_boxes <= 1 && clip_region == NULL) + return fixup_unbounded (compositor, dst, extents); + + _cairo_boxes_init (&clear); + + box.p1.x = _cairo_fixed_from_int (extents->unbounded.x + extents->unbounded.width); + box.p1.y = _cairo_fixed_from_int (extents->unbounded.y); + box.p2.x = _cairo_fixed_from_int (extents->unbounded.x); + box.p2.y = _cairo_fixed_from_int (extents->unbounded.y + extents->unbounded.height); + + if (clip_region == NULL) { + cairo_boxes_t tmp; + + _cairo_boxes_init (&tmp); + + status = _cairo_boxes_add (&tmp, CAIRO_ANTIALIAS_DEFAULT, &box); + assert (status == CAIRO_STATUS_SUCCESS); + + tmp.chunks.next = &boxes->chunks; + tmp.num_boxes += boxes->num_boxes; + + status = _cairo_bentley_ottmann_tessellate_boxes (&tmp, + CAIRO_FILL_RULE_WINDING, + &clear); + + tmp.chunks.next = NULL; + } else { + pixman_box32_t *pbox; + + pbox = pixman_region32_rectangles (&clip_region->rgn, &i); + _cairo_boxes_limit (&clear, (cairo_box_t *) pbox, i); + + status = _cairo_boxes_add (&clear, CAIRO_ANTIALIAS_DEFAULT, &box); + assert (status == CAIRO_STATUS_SUCCESS); + + for (chunk = &boxes->chunks; chunk != NULL; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + status = _cairo_boxes_add (&clear, + CAIRO_ANTIALIAS_DEFAULT, + &chunk->base[i]); + if (unlikely (status)) { + _cairo_boxes_fini (&clear); + return status; + } + } + } + + status = _cairo_bentley_ottmann_tessellate_boxes (&clear, + CAIRO_FILL_RULE_WINDING, + &clear); + } + + if (likely (status == CAIRO_STATUS_SUCCESS)) { + status = compositor->fill_boxes (dst, + CAIRO_OPERATOR_CLEAR, + CAIRO_COLOR_TRANSPARENT, + &clear); + } + + _cairo_boxes_fini (&clear); + + return status; +} + +enum { + NEED_CLIP_REGION = 0x1, + NEED_CLIP_SURFACE = 0x2, + FORCE_CLIP_REGION = 0x4, +}; + +static cairo_bool_t +need_bounded_clip (cairo_composite_rectangles_t *extents) +{ + unsigned int flags = NEED_CLIP_REGION; + if (! _cairo_clip_is_region (extents->clip)) + flags |= NEED_CLIP_SURFACE; + return flags; +} + +static cairo_bool_t +need_unbounded_clip (cairo_composite_rectangles_t *extents) +{ + unsigned int flags = 0; + if (! extents->is_bounded) { + flags |= NEED_CLIP_REGION; + if (! _cairo_clip_is_region (extents->clip)) + flags |= NEED_CLIP_SURFACE; + } + if (extents->clip->path != NULL) + flags |= NEED_CLIP_SURFACE; + return flags; +} + +static cairo_status_t +clip_and_composite (const cairo_mask_compositor_t *compositor, + draw_func_t draw_func, + draw_func_t mask_func, + void *draw_closure, + cairo_composite_rectangles_t*extents, + unsigned int need_clip) +{ + cairo_surface_t *dst = extents->surface; + cairo_operator_t op = extents->op; + cairo_pattern_t *src = &extents->source_pattern.base; + cairo_region_t *clip_region = NULL; + cairo_status_t status; + + compositor->acquire (dst); + + if (need_clip & NEED_CLIP_REGION) { + clip_region = _cairo_clip_get_region (extents->clip); + if ((need_clip & FORCE_CLIP_REGION) == 0 && + _cairo_composite_rectangles_can_reduce_clip (extents, + extents->clip)) + clip_region = NULL; + if (clip_region != NULL) { + status = compositor->set_clip_region (dst, clip_region); + if (unlikely (status)) { + compositor->release (dst); + return status; + } + } + } + + if (reduce_alpha_op (dst, op, &extents->source_pattern.base)) { + op = CAIRO_OPERATOR_ADD; + src = NULL; + } + + if (op == CAIRO_OPERATOR_SOURCE) { + status = clip_and_composite_source (compositor, + draw_closure, draw_func, mask_func, + src, extents); + } else { + if (op == CAIRO_OPERATOR_CLEAR) { + op = CAIRO_OPERATOR_DEST_OUT; + src = NULL; + } + + if (need_clip & NEED_CLIP_SURFACE) { + if (extents->is_bounded) { + status = clip_and_composite_with_mask (compositor, + draw_closure, + draw_func, + mask_func, + op, src, extents); + } else { + status = clip_and_composite_combine (compositor, + draw_closure, + draw_func, + op, src, extents); + } + } else { + status = draw_func (compositor, + dst, draw_closure, + op, src, &extents->source_sample_area, + 0, 0, + &extents->bounded, + extents->clip); + } + } + + if (status == CAIRO_STATUS_SUCCESS && ! extents->is_bounded) { + if (need_clip & NEED_CLIP_SURFACE) + status = fixup_unbounded_with_mask (compositor, dst, extents); + else + status = fixup_unbounded (compositor, dst, extents); + } + + if (clip_region) + compositor->set_clip_region (dst, NULL); + + compositor->release (dst); + + return status; +} + +static cairo_int_status_t +trim_extents_to_boxes (cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_box_t box; + + _cairo_boxes_extents (boxes, &box); + return _cairo_composite_rectangles_intersect_mask_extents (extents, &box); +} + +static cairo_status_t +upload_boxes (const cairo_mask_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_surface_t *dst = extents->surface; + const cairo_pattern_t *source = &extents->source_pattern.base; + cairo_surface_t *src; + cairo_rectangle_int_t limit; + cairo_int_status_t status; + int tx, ty; + + src = _cairo_pattern_get_source ((cairo_surface_pattern_t *)source, &limit); + if (!(src->type == CAIRO_SURFACE_TYPE_IMAGE || src->type == dst->type)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (! _cairo_matrix_is_integer_translation (&source->matrix, &tx, &ty)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Check that the data is entirely within the image */ + if (extents->bounded.x + tx < limit.x || extents->bounded.y + ty < limit.y) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (extents->bounded.x + extents->bounded.width + tx > limit.x + limit.width || + extents->bounded.y + extents->bounded.height + ty > limit.y + limit.height) + return CAIRO_INT_STATUS_UNSUPPORTED; + + tx += limit.x; + ty += limit.y; + + if (src->type == CAIRO_SURFACE_TYPE_IMAGE) + status = compositor->draw_image_boxes (dst, + (cairo_image_surface_t *)src, + boxes, tx, ty); + else + status = compositor->copy_boxes (dst, src, boxes, &extents->bounded, + tx, ty); + + return status; +} + +static cairo_status_t +composite_boxes (const cairo_mask_compositor_t *compositor, + const cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_surface_t *dst = extents->surface; + cairo_operator_t op = extents->op; + const cairo_pattern_t *source = &extents->source_pattern.base; + cairo_bool_t need_clip_mask = extents->clip->path != NULL; + cairo_status_t status; + + if (need_clip_mask && + (! extents->is_bounded || op == CAIRO_OPERATOR_SOURCE)) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + status = compositor->acquire (dst); + if (unlikely (status)) + return status; + + if (! need_clip_mask && source->type == CAIRO_PATTERN_TYPE_SOLID) { + const cairo_color_t *color; + + color = &((cairo_solid_pattern_t *) source)->color; + status = compositor->fill_boxes (dst, op, color, boxes); + } else { + cairo_surface_t *src, *mask = NULL; + int src_x, src_y; + int mask_x = 0, mask_y = 0; + + if (need_clip_mask) { + mask = get_clip_source (compositor, + extents->clip, dst, &extents->bounded, + &mask_x, &mask_y); + if (unlikely (mask->status)) + return mask->status; + + if (op == CAIRO_OPERATOR_CLEAR) { + source = NULL; + op = CAIRO_OPERATOR_DEST_OUT; + } + } + + if (source || mask == NULL) { + src = compositor->pattern_to_surface (dst, source, FALSE, + &extents->bounded, + &extents->source_sample_area, + &src_x, &src_y); + } else { + src = mask; + src_x = mask_x; + src_y = mask_y; + mask = NULL; + } + + status = compositor->composite_boxes (dst, op, src, mask, + src_x, src_y, + mask_x, mask_y, + 0, 0, + boxes, &extents->bounded); + + cairo_surface_destroy (src); + cairo_surface_destroy (mask); + } + + if (status == CAIRO_STATUS_SUCCESS && ! extents->is_bounded) + status = fixup_unbounded_boxes (compositor, extents, boxes); + + compositor->release (dst); + + return status; +} + +static cairo_status_t +clip_and_composite_boxes (const cairo_mask_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_surface_t *dst = extents->surface; + cairo_int_status_t status; + + if (boxes->num_boxes == 0) { + if (extents->is_bounded) + return CAIRO_STATUS_SUCCESS; + + return fixup_unbounded_boxes (compositor, extents, boxes); + } + + if (! boxes->is_pixel_aligned) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = trim_extents_to_boxes (extents, boxes); + if (unlikely (status)) + return status; + + if (extents->source_pattern.base.type == CAIRO_PATTERN_TYPE_SURFACE && + extents->clip->path == NULL && + (extents->op == CAIRO_OPERATOR_SOURCE || + (dst->is_clear && (extents->op == CAIRO_OPERATOR_OVER || + extents->op == CAIRO_OPERATOR_ADD)))) + { + status = upload_boxes (compositor, extents, boxes); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + } + + return composite_boxes (compositor, extents, boxes); +} + +/* high-level compositor interface */ + +static cairo_int_status_t +_cairo_mask_compositor_paint (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents) +{ + cairo_mask_compositor_t *compositor = (cairo_mask_compositor_t*)_compositor; + cairo_boxes_t boxes; + cairo_int_status_t status; + + status = compositor->check_composite (extents); + if (unlikely (status)) + return status; + + _cairo_clip_steal_boxes (extents->clip, &boxes); + status = clip_and_composite_boxes (compositor, extents, &boxes); + _cairo_clip_unsteal_boxes (extents->clip, &boxes); + + return status; +} + +struct composite_opacity_info { + const cairo_mask_compositor_t *compositor; + uint8_t op; + cairo_surface_t *dst; + cairo_surface_t *src; + int src_x, src_y; + double opacity; +}; + +static void composite_opacity(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage) +{ + struct composite_opacity_info *info = closure; + const cairo_mask_compositor_t *compositor = info->compositor; + cairo_surface_t *mask; + int mask_x, mask_y; + cairo_color_t color; + cairo_solid_pattern_t solid; + + _cairo_color_init_rgba (&color, 0, 0, 0, info->opacity * coverage); + _cairo_pattern_init_solid (&solid, &color); + mask = compositor->pattern_to_surface (info->dst, &solid.base, TRUE, + &_cairo_unbounded_rectangle, + &_cairo_unbounded_rectangle, + &mask_x, &mask_y); + if (likely (mask->status == CAIRO_STATUS_SUCCESS)) { + if (info->src) { + compositor->composite (info->dst, info->op, info->src, mask, + x + info->src_x, y + info->src_y, + mask_x, mask_y, + x, y, + w, h); + } else { + compositor->composite (info->dst, info->op, mask, NULL, + mask_x, mask_y, + 0, 0, + x, y, + w, h); + } + } + + cairo_surface_destroy (mask); +} + +static cairo_int_status_t +composite_opacity_boxes (const cairo_mask_compositor_t *compositor, + cairo_surface_t *dst, + void *closure, + cairo_operator_t op, + const cairo_pattern_t *src_pattern, + const cairo_rectangle_int_t *src_sample, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + const cairo_solid_pattern_t *mask_pattern = closure; + struct composite_opacity_info info; + int i; + + assert (clip); + + info.compositor = compositor; + info.op = op; + info.dst = dst; + + if (src_pattern != NULL) { + info.src = compositor->pattern_to_surface (dst, src_pattern, FALSE, + extents, src_sample, + &info.src_x, &info.src_y); + if (unlikely (info.src->status)) + return info.src->status; + } else + info.src = NULL; + + info.opacity = mask_pattern->color.alpha / (double) 0xffff; + + /* XXX for lots of boxes create a clip region for the fully opaque areas */ + for (i = 0; i < clip->num_boxes; i++) + do_unaligned_box(composite_opacity, &info, + &clip->boxes[i], dst_x, dst_y); + cairo_surface_destroy (info.src); + + return CAIRO_STATUS_SUCCESS; +} + +struct composite_box_info { + const cairo_mask_compositor_t *compositor; + cairo_surface_t *dst; + cairo_surface_t *src; + int src_x, src_y; + uint8_t op; +}; + +static void composite_box(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage) +{ + struct composite_box_info *info = closure; + const cairo_mask_compositor_t *compositor = info->compositor; + + if (! CAIRO_ALPHA_SHORT_IS_OPAQUE (coverage)) { + cairo_surface_t *mask; + cairo_color_t color; + cairo_solid_pattern_t solid; + int mask_x, mask_y; + + _cairo_color_init_rgba (&color, 0, 0, 0, coverage / (double)0xffff); + _cairo_pattern_init_solid (&solid, &color); + + mask = compositor->pattern_to_surface (info->dst, &solid.base, FALSE, + &_cairo_unbounded_rectangle, + &_cairo_unbounded_rectangle, + &mask_x, &mask_y); + + if (likely (mask->status == CAIRO_STATUS_SUCCESS)) { + compositor->composite (info->dst, info->op, info->src, mask, + x + info->src_x, y + info->src_y, + mask_x, mask_y, + x, y, + w, h); + } + + cairo_surface_destroy (mask); + } else { + compositor->composite (info->dst, info->op, info->src, NULL, + x + info->src_x, y + info->src_y, + 0, 0, + x, y, + w, h); + } +} + +static cairo_int_status_t +composite_mask_clip_boxes (const cairo_mask_compositor_t *compositor, + cairo_surface_t *dst, + void *closure, + cairo_operator_t op, + const cairo_pattern_t *src_pattern, + const cairo_rectangle_int_t *src_sample, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + cairo_composite_rectangles_t *composite = closure; + struct composite_box_info info; + int i; + + assert (src_pattern == NULL); + assert (op == CAIRO_OPERATOR_SOURCE); + + info.compositor = compositor; + info.op = CAIRO_OPERATOR_SOURCE; + info.dst = dst; + info.src = compositor->pattern_to_surface (dst, + &composite->mask_pattern.base, + FALSE, extents, + &composite->mask_sample_area, + &info.src_x, &info.src_y); + if (unlikely (info.src->status)) + return info.src->status; + + info.src_x += dst_x; + info.src_y += dst_y; + + for (i = 0; i < clip->num_boxes; i++) + do_unaligned_box(composite_box, &info, &clip->boxes[i], dst_x, dst_y); + + cairo_surface_destroy (info.src); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +composite_mask (const cairo_mask_compositor_t *compositor, + cairo_surface_t *dst, + void *closure, + cairo_operator_t op, + const cairo_pattern_t *src_pattern, + const cairo_rectangle_int_t *src_sample, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + cairo_composite_rectangles_t *composite = closure; + cairo_surface_t *src, *mask; + int src_x, src_y; + int mask_x, mask_y; + + if (src_pattern != NULL) { + src = compositor->pattern_to_surface (dst, src_pattern, FALSE, + extents, src_sample, + &src_x, &src_y); + if (unlikely (src->status)) + return src->status; + + mask = compositor->pattern_to_surface (dst, &composite->mask_pattern.base, TRUE, + extents, &composite->mask_sample_area, + &mask_x, &mask_y); + if (unlikely (mask->status)) { + cairo_surface_destroy (src); + return mask->status; + } + + compositor->composite (dst, op, src, mask, + extents->x + src_x, extents->y + src_y, + extents->x + mask_x, extents->y + mask_y, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + + cairo_surface_destroy (mask); + cairo_surface_destroy (src); + } else { + src = compositor->pattern_to_surface (dst, &composite->mask_pattern.base, FALSE, + extents, &composite->mask_sample_area, + &src_x, &src_y); + if (unlikely (src->status)) + return src->status; + + compositor->composite (dst, op, src, NULL, + extents->x + src_x, extents->y + src_y, + 0, 0, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + + cairo_surface_destroy (src); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_mask_compositor_mask (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents) +{ + const cairo_mask_compositor_t *compositor = (cairo_mask_compositor_t*)_compositor; + cairo_int_status_t status = CAIRO_INT_STATUS_UNSUPPORTED; + + status = compositor->check_composite (extents); + if (unlikely (status)) + return status; + + if (extents->mask_pattern.base.type == CAIRO_PATTERN_TYPE_SOLID && + extents->clip->path == NULL && + _cairo_clip_is_region (extents->clip)) { + status = clip_and_composite (compositor, + composite_opacity_boxes, + composite_opacity_boxes, + &extents->mask_pattern.solid, + extents, need_unbounded_clip (extents)); + } else { + status = clip_and_composite (compositor, + composite_mask, + extents->clip->path == NULL ? composite_mask_clip_boxes : NULL, + extents, + extents, need_bounded_clip (extents)); + } + + return status; +} + +static cairo_int_status_t +_cairo_mask_compositor_stroke (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias) +{ + const cairo_mask_compositor_t *compositor = (cairo_mask_compositor_t*)_compositor; + cairo_surface_t *mask; + cairo_surface_pattern_t pattern; + cairo_int_status_t status = CAIRO_INT_STATUS_UNSUPPORTED; + + status = compositor->check_composite (extents); + if (unlikely (status)) + return status; + + if (_cairo_path_fixed_stroke_is_rectilinear (path)) { + cairo_boxes_t boxes; + + _cairo_boxes_init_with_clip (&boxes, extents->clip); + status = _cairo_path_fixed_stroke_rectilinear_to_boxes (path, + style, + ctm, + antialias, + &boxes); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = clip_and_composite_boxes (compositor, extents, &boxes); + _cairo_boxes_fini (&boxes); + } + + + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + mask = cairo_surface_create_similar_image (extents->surface, + CAIRO_FORMAT_A8, + extents->bounded.width, + extents->bounded.height); + if (unlikely (mask->status)) + return mask->status; + + status = _cairo_surface_offset_stroke (mask, + extents->bounded.x, + extents->bounded.y, + CAIRO_OPERATOR_ADD, + &_cairo_pattern_white.base, + path, style, ctm, ctm_inverse, + tolerance, antialias, + extents->clip); + if (unlikely (status)) { + cairo_surface_destroy (mask); + return status; + } + + _cairo_pattern_init_for_surface (&pattern, mask); + cairo_surface_destroy (mask); + + cairo_matrix_init_translate (&pattern.base.matrix, + -extents->bounded.x, + -extents->bounded.y); + pattern.base.filter = CAIRO_FILTER_NEAREST; + pattern.base.extend = CAIRO_EXTEND_NONE; + status = _cairo_surface_mask (extents->surface, + extents->op, + &extents->source_pattern.base, + &pattern.base, + extents->clip); + _cairo_pattern_fini (&pattern.base); + } + + return status; +} + +static cairo_int_status_t +_cairo_mask_compositor_fill (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + const cairo_mask_compositor_t *compositor = (cairo_mask_compositor_t*)_compositor; + cairo_surface_t *mask; + cairo_surface_pattern_t pattern; + cairo_int_status_t status = CAIRO_INT_STATUS_UNSUPPORTED; + + status = compositor->check_composite (extents); + if (unlikely (status)) + return status; + + if (_cairo_path_fixed_fill_is_rectilinear (path)) { + cairo_boxes_t boxes; + + _cairo_boxes_init_with_clip (&boxes, extents->clip); + status = _cairo_path_fixed_fill_rectilinear_to_boxes (path, + fill_rule, + antialias, + &boxes); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = clip_and_composite_boxes (compositor, extents, &boxes); + _cairo_boxes_fini (&boxes); + } + + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + mask = cairo_surface_create_similar_image (extents->surface, + CAIRO_FORMAT_A8, + extents->bounded.width, + extents->bounded.height); + if (unlikely (mask->status)) + return mask->status; + + status = _cairo_surface_offset_fill (mask, + extents->bounded.x, + extents->bounded.y, + CAIRO_OPERATOR_ADD, + &_cairo_pattern_white.base, + path, fill_rule, tolerance, antialias, + extents->clip); + if (unlikely (status)) { + cairo_surface_destroy (mask); + return status; + } + + _cairo_pattern_init_for_surface (&pattern, mask); + cairo_surface_destroy (mask); + + cairo_matrix_init_translate (&pattern.base.matrix, + -extents->bounded.x, + -extents->bounded.y); + pattern.base.filter = CAIRO_FILTER_NEAREST; + pattern.base.extend = CAIRO_EXTEND_NONE; + status = _cairo_surface_mask (extents->surface, + extents->op, + &extents->source_pattern.base, + &pattern.base, + extents->clip); + _cairo_pattern_fini (&pattern.base); + } + + return status; +} + +static cairo_int_status_t +_cairo_mask_compositor_glyphs (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_bool_t overlap) +{ + const cairo_mask_compositor_t *compositor = (cairo_mask_compositor_t*)_compositor; + cairo_surface_t *mask; + cairo_surface_pattern_t pattern; + cairo_int_status_t status; + + status = compositor->check_composite (extents); + if (unlikely (status)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + mask = cairo_surface_create_similar_image (extents->surface, + CAIRO_FORMAT_A8, + extents->bounded.width, + extents->bounded.height); + if (unlikely (mask->status)) + return mask->status; + + status = _cairo_surface_offset_glyphs (mask, + extents->bounded.x, + extents->bounded.y, + CAIRO_OPERATOR_ADD, + &_cairo_pattern_white.base, + scaled_font, glyphs, num_glyphs, + extents->clip); + if (unlikely (status)) { + cairo_surface_destroy (mask); + return status; + } + + _cairo_pattern_init_for_surface (&pattern, mask); + cairo_surface_destroy (mask); + + cairo_matrix_init_translate (&pattern.base.matrix, + -extents->bounded.x, + -extents->bounded.y); + pattern.base.filter = CAIRO_FILTER_NEAREST; + pattern.base.extend = CAIRO_EXTEND_NONE; + status = _cairo_surface_mask (extents->surface, + extents->op, + &extents->source_pattern.base, + &pattern.base, + extents->clip); + _cairo_pattern_fini (&pattern.base); + + return status; +} + +void +_cairo_mask_compositor_init (cairo_mask_compositor_t *compositor, + const cairo_compositor_t *delegate) +{ + compositor->base.delegate = delegate; + + compositor->base.paint = _cairo_mask_compositor_paint; + compositor->base.mask = _cairo_mask_compositor_mask; + compositor->base.fill = _cairo_mask_compositor_fill; + compositor->base.stroke = _cairo_mask_compositor_stroke; + compositor->base.glyphs = _cairo_mask_compositor_glyphs; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-matrix.c b/local/recipes/libs/cairo/source/src/cairo-matrix.c new file mode 100644 index 0000000000..f2be48b74d --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-matrix.c @@ -0,0 +1,1190 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" +#include "cairo-error-private.h" +#include + +#define PIXMAN_MAX_INT ((pixman_fixed_1 >> 1) - pixman_fixed_e) /* need to ensure deltas also fit */ + +/** + * SECTION:cairo-matrix + * @Title: cairo_matrix_t + * @Short_Description: Generic matrix operations + * @See_Also: #cairo_t + * + * #cairo_matrix_t is used throughout cairo to convert between different + * coordinate spaces. A #cairo_matrix_t holds an affine transformation, + * such as a scale, rotation, shear, or a combination of these. + * The transformation of a point (x,y) + * is given by: + * + * + * x_new = xx * x + xy * y + x0; + * y_new = yx * x + yy * y + y0; + * + * + * The current transformation matrix of a #cairo_t, represented as a + * #cairo_matrix_t, defines the transformation from user-space + * coordinates to device-space coordinates. See cairo_get_matrix() and + * cairo_set_matrix(). + **/ + +static void +_cairo_matrix_scalar_multiply (cairo_matrix_t *matrix, double scalar); + +static void +_cairo_matrix_compute_adjoint (cairo_matrix_t *matrix); + +/** + * cairo_matrix_init_identity: + * @matrix: a #cairo_matrix_t + * + * Modifies @matrix to be an identity transformation. + * + * Since: 1.0 + **/ +void +cairo_matrix_init_identity (cairo_matrix_t *matrix) +{ + cairo_matrix_init (matrix, + 1, 0, + 0, 1, + 0, 0); +} + +/** + * cairo_matrix_init: + * @matrix: a #cairo_matrix_t + * @xx: xx component of the affine transformation + * @yx: yx component of the affine transformation + * @xy: xy component of the affine transformation + * @yy: yy component of the affine transformation + * @x0: X translation component of the affine transformation + * @y0: Y translation component of the affine transformation + * + * Sets @matrix to be the affine transformation given by + * @xx, @yx, @xy, @yy, @x0, @y0. The transformation is given + * by: + * + * x_new = xx * x + xy * y + x0; + * y_new = yx * x + yy * y + y0; + * + * + * Since: 1.0 + **/ +void +cairo_matrix_init (cairo_matrix_t *matrix, + double xx, double yx, + + double xy, double yy, + double x0, double y0) +{ + matrix->xx = xx; matrix->yx = yx; + matrix->xy = xy; matrix->yy = yy; + matrix->x0 = x0; matrix->y0 = y0; +} + +/** + * _cairo_matrix_get_affine: + * @matrix: a #cairo_matrix_t + * @xx: location to store xx component of matrix + * @yx: location to store yx component of matrix + * @xy: location to store xy component of matrix + * @yy: location to store yy component of matrix + * @x0: location to store x0 (X-translation component) of matrix, or %NULL + * @y0: location to store y0 (Y-translation component) of matrix, or %NULL + * + * Gets the matrix values for the affine transformation that @matrix represents. + * See cairo_matrix_init(). + * + * + * This function is a leftover from the old public API, but is still + * mildly useful as an internal means for getting at the matrix + * members in a positional way. For example, when reassigning to some + * external matrix type, or when renaming members to more meaningful + * names (such as a,b,c,d,e,f) for particular manipulations. + **/ +void +_cairo_matrix_get_affine (const cairo_matrix_t *matrix, + double *xx, double *yx, + double *xy, double *yy, + double *x0, double *y0) +{ + *xx = matrix->xx; + *yx = matrix->yx; + + *xy = matrix->xy; + *yy = matrix->yy; + + if (x0) + *x0 = matrix->x0; + if (y0) + *y0 = matrix->y0; +} + +/** + * cairo_matrix_init_translate: + * @matrix: a #cairo_matrix_t + * @tx: amount to translate in the X direction + * @ty: amount to translate in the Y direction + * + * Initializes @matrix to a transformation that translates by @tx and + * @ty in the X and Y dimensions, respectively. + * + * Since: 1.0 + **/ +void +cairo_matrix_init_translate (cairo_matrix_t *matrix, + double tx, double ty) +{ + cairo_matrix_init (matrix, + 1, 0, + 0, 1, + tx, ty); +} + +/** + * cairo_matrix_translate: + * @matrix: a #cairo_matrix_t + * @tx: amount to translate in the X direction + * @ty: amount to translate in the Y direction + * + * Applies a translation by @tx, @ty to the transformation in + * @matrix. The effect of the new transformation is to first translate + * the coordinates by @tx and @ty, then apply the original transformation + * to the coordinates. + * + * Since: 1.0 + **/ +void +cairo_matrix_translate (cairo_matrix_t *matrix, double tx, double ty) +{ + cairo_matrix_t tmp; + + cairo_matrix_init_translate (&tmp, tx, ty); + + cairo_matrix_multiply (matrix, &tmp, matrix); +} + +/** + * cairo_matrix_init_scale: + * @matrix: a #cairo_matrix_t + * @sx: scale factor in the X direction + * @sy: scale factor in the Y direction + * + * Initializes @matrix to a transformation that scales by @sx and @sy + * in the X and Y dimensions, respectively. + * + * Since: 1.0 + **/ +void +cairo_matrix_init_scale (cairo_matrix_t *matrix, + double sx, double sy) +{ + cairo_matrix_init (matrix, + sx, 0, + 0, sy, + 0, 0); +} + +/** + * cairo_matrix_scale: + * @matrix: a #cairo_matrix_t + * @sx: scale factor in the X direction + * @sy: scale factor in the Y direction + * + * Applies scaling by @sx, @sy to the transformation in @matrix. The + * effect of the new transformation is to first scale the coordinates + * by @sx and @sy, then apply the original transformation to the coordinates. + * + * Since: 1.0 + **/ +void +cairo_matrix_scale (cairo_matrix_t *matrix, double sx, double sy) +{ + cairo_matrix_t tmp; + + cairo_matrix_init_scale (&tmp, sx, sy); + + cairo_matrix_multiply (matrix, &tmp, matrix); +} + +/** + * cairo_matrix_init_rotate: + * @matrix: a #cairo_matrix_t + * @radians: angle of rotation, in radians. The direction of rotation + * is defined such that positive angles rotate in the direction from + * the positive X axis toward the positive Y axis. With the default + * axis orientation of cairo, positive angles rotate in a clockwise + * direction. + * + * Initialized @matrix to a transformation that rotates by @radians. + * + * Since: 1.0 + **/ +void +cairo_matrix_init_rotate (cairo_matrix_t *matrix, + double radians) +{ + double s; + double c; + + s = sin (radians); + c = cos (radians); + + cairo_matrix_init (matrix, + c, s, + -s, c, + 0, 0); +} + +/** + * cairo_matrix_rotate: + * @matrix: a #cairo_matrix_t + * @radians: angle of rotation, in radians. The direction of rotation + * is defined such that positive angles rotate in the direction from + * the positive X axis toward the positive Y axis. With the default + * axis orientation of cairo, positive angles rotate in a clockwise + * direction. + * + * Applies rotation by @radians to the transformation in + * @matrix. The effect of the new transformation is to first rotate the + * coordinates by @radians, then apply the original transformation + * to the coordinates. + * + * Since: 1.0 + **/ +void +cairo_matrix_rotate (cairo_matrix_t *matrix, double radians) +{ + cairo_matrix_t tmp; + + cairo_matrix_init_rotate (&tmp, radians); + + cairo_matrix_multiply (matrix, &tmp, matrix); +} + +/** + * cairo_matrix_multiply: + * @result: a #cairo_matrix_t in which to store the result + * @a: a #cairo_matrix_t + * @b: a #cairo_matrix_t + * + * Multiplies the affine transformations in @a and @b together + * and stores the result in @result. The effect of the resulting + * transformation is to first apply the transformation in @a to the + * coordinates and then apply the transformation in @b to the + * coordinates. + * + * It is allowable for @result to be identical to either @a or @b. + * + * Since: 1.0 + **/ +/* + * XXX: The ordering of the arguments to this function corresponds + * to [row_vector]*A*B. If we want to use column vectors instead, + * then we need to switch the two arguments and fix up all + * uses. + */ +void +cairo_matrix_multiply (cairo_matrix_t *result, const cairo_matrix_t *a, const cairo_matrix_t *b) +{ + cairo_matrix_t r; + + r.xx = a->xx * b->xx + a->yx * b->xy; + r.yx = a->xx * b->yx + a->yx * b->yy; + + r.xy = a->xy * b->xx + a->yy * b->xy; + r.yy = a->xy * b->yx + a->yy * b->yy; + + r.x0 = a->x0 * b->xx + a->y0 * b->xy + b->x0; + r.y0 = a->x0 * b->yx + a->y0 * b->yy + b->y0; + + *result = r; +} + +void +_cairo_matrix_multiply (cairo_matrix_t *r, + const cairo_matrix_t *a, + const cairo_matrix_t *b) +{ + r->xx = a->xx * b->xx + a->yx * b->xy; + r->yx = a->xx * b->yx + a->yx * b->yy; + + r->xy = a->xy * b->xx + a->yy * b->xy; + r->yy = a->xy * b->yx + a->yy * b->yy; + + r->x0 = a->x0 * b->xx + a->y0 * b->xy + b->x0; + r->y0 = a->x0 * b->yx + a->y0 * b->yy + b->y0; +} + +/** + * cairo_matrix_transform_distance: + * @matrix: a #cairo_matrix_t + * @dx: X component of a distance vector. An in/out parameter + * @dy: Y component of a distance vector. An in/out parameter + * + * Transforms the distance vector (@dx,@dy) by @matrix. This is + * similar to cairo_matrix_transform_point() except that the translation + * components of the transformation are ignored. The calculation of + * the returned vector is as follows: + * + * + * dx_new = xx * dx + xy * dy; + * dy_new = yx * dx + yy * dy; + * + * + * Since: 1.0 + **/ +void +cairo_matrix_transform_distance (const cairo_matrix_t *matrix, double *dx, double *dy) +{ + double new_x, new_y; + + new_x = (matrix->xx * *dx + matrix->xy * *dy); + new_y = (matrix->yx * *dx + matrix->yy * *dy); + + *dx = new_x; + *dy = new_y; +} + +/** + * cairo_matrix_transform_point: + * @matrix: a #cairo_matrix_t + * @x: X position. An in/out parameter + * @y: Y position. An in/out parameter + * + * Transforms the point (@x, @y) by @matrix. + * + * Since: 1.0 + **/ +void +cairo_matrix_transform_point (const cairo_matrix_t *matrix, double *x, double *y) +{ + cairo_matrix_transform_distance (matrix, x, y); + + *x += matrix->x0; + *y += matrix->y0; +} + +void +_cairo_matrix_transform_bounding_box (const cairo_matrix_t *matrix, + double *x1, double *y1, + double *x2, double *y2, + cairo_bool_t *is_tight) +{ + int i; + double quad_x[4], quad_y[4]; + double min_x, max_x; + double min_y, max_y; + + if (matrix->xy == 0. && matrix->yx == 0.) { + /* non-rotation/skew matrix, just map the two extreme points */ + + if (matrix->xx != 1.) { + quad_x[0] = *x1 * matrix->xx; + quad_x[1] = *x2 * matrix->xx; + if (quad_x[0] < quad_x[1]) { + *x1 = quad_x[0]; + *x2 = quad_x[1]; + } else { + *x1 = quad_x[1]; + *x2 = quad_x[0]; + } + } + if (matrix->x0 != 0.) { + *x1 += matrix->x0; + *x2 += matrix->x0; + } + + if (matrix->yy != 1.) { + quad_y[0] = *y1 * matrix->yy; + quad_y[1] = *y2 * matrix->yy; + if (quad_y[0] < quad_y[1]) { + *y1 = quad_y[0]; + *y2 = quad_y[1]; + } else { + *y1 = quad_y[1]; + *y2 = quad_y[0]; + } + } + if (matrix->y0 != 0.) { + *y1 += matrix->y0; + *y2 += matrix->y0; + } + + if (is_tight) + *is_tight = TRUE; + + return; + } + + /* general matrix */ + quad_x[0] = *x1; + quad_y[0] = *y1; + cairo_matrix_transform_point (matrix, &quad_x[0], &quad_y[0]); + + quad_x[1] = *x2; + quad_y[1] = *y1; + cairo_matrix_transform_point (matrix, &quad_x[1], &quad_y[1]); + + quad_x[2] = *x1; + quad_y[2] = *y2; + cairo_matrix_transform_point (matrix, &quad_x[2], &quad_y[2]); + + quad_x[3] = *x2; + quad_y[3] = *y2; + cairo_matrix_transform_point (matrix, &quad_x[3], &quad_y[3]); + + min_x = max_x = quad_x[0]; + min_y = max_y = quad_y[0]; + + for (i=1; i < 4; i++) { + if (quad_x[i] < min_x) + min_x = quad_x[i]; + if (quad_x[i] > max_x) + max_x = quad_x[i]; + + if (quad_y[i] < min_y) + min_y = quad_y[i]; + if (quad_y[i] > max_y) + max_y = quad_y[i]; + } + + *x1 = min_x; + *y1 = min_y; + *x2 = max_x; + *y2 = max_y; + + if (is_tight) { + /* it's tight if and only if the four corner points form an axis-aligned + rectangle. + And that's true if and only if we can derive corners 0 and 3 from + corners 1 and 2 in one of two straightforward ways... + We could use a tolerance here but for now we'll fall back to FALSE in the case + of floating point error. + */ + *is_tight = + (quad_x[1] == quad_x[0] && quad_y[1] == quad_y[3] && + quad_x[2] == quad_x[3] && quad_y[2] == quad_y[0]) || + (quad_x[1] == quad_x[3] && quad_y[1] == quad_y[0] && + quad_x[2] == quad_x[0] && quad_y[2] == quad_y[3]); + } +} + +cairo_private void +_cairo_matrix_transform_bounding_box_fixed (const cairo_matrix_t *matrix, + cairo_box_t *bbox, + cairo_bool_t *is_tight) +{ + double x1, y1, x2, y2; + + _cairo_box_to_doubles (bbox, &x1, &y1, &x2, &y2); + _cairo_matrix_transform_bounding_box (matrix, &x1, &y1, &x2, &y2, is_tight); + _cairo_box_from_doubles (bbox, &x1, &y1, &x2, &y2); +} + +static void +_cairo_matrix_scalar_multiply (cairo_matrix_t *matrix, double scalar) +{ + matrix->xx *= scalar; + matrix->yx *= scalar; + + matrix->xy *= scalar; + matrix->yy *= scalar; + + matrix->x0 *= scalar; + matrix->y0 *= scalar; +} + +/* This function isn't a correct adjoint in that the implicit 1 in the + homogeneous result should actually be ad-bc instead. But, since this + adjoint is only used in the computation of the inverse, which + divides by det (A)=ad-bc anyway, everything works out in the end. */ +static void +_cairo_matrix_compute_adjoint (cairo_matrix_t *matrix) +{ + /* adj (A) = transpose (C:cofactor (A,i,j)) */ + double a, b, c, d, tx, ty; + + _cairo_matrix_get_affine (matrix, + &a, &b, + &c, &d, + &tx, &ty); + + cairo_matrix_init (matrix, + d, -b, + -c, a, + c*ty - d*tx, b*tx - a*ty); +} + +/** + * cairo_matrix_invert: + * @matrix: a #cairo_matrix_t + * + * Changes @matrix to be the inverse of its original value. Not + * all transformation matrices have inverses; if the matrix + * collapses points together (it is degenerate), + * then it has no inverse and this function will fail. + * + * Returns: If @matrix has an inverse, modifies @matrix to + * be the inverse matrix and returns %CAIRO_STATUS_SUCCESS. Otherwise, + * returns %CAIRO_STATUS_INVALID_MATRIX. + * + * Since: 1.0 + **/ +cairo_status_t +cairo_matrix_invert (cairo_matrix_t *matrix) +{ + double det; + + /* Simple scaling|translation matrices are quite common... */ + if (matrix->xy == 0. && matrix->yx == 0.) { + matrix->x0 = -matrix->x0; + matrix->y0 = -matrix->y0; + + if (matrix->xx != 1.) { + if (matrix->xx == 0.) + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + + matrix->xx = 1. / matrix->xx; + matrix->x0 *= matrix->xx; + } + + if (matrix->yy != 1.) { + if (matrix->yy == 0.) + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + + matrix->yy = 1. / matrix->yy; + matrix->y0 *= matrix->yy; + } + + return CAIRO_STATUS_SUCCESS; + } + + /* inv (A) = 1/det (A) * adj (A) */ + det = _cairo_matrix_compute_determinant (matrix); + + if (! ISFINITE (det)) + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + + if (det == 0) + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + + _cairo_matrix_compute_adjoint (matrix); + _cairo_matrix_scalar_multiply (matrix, 1 / det); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_bool_t +_cairo_matrix_is_invertible (const cairo_matrix_t *matrix) +{ + double det; + + det = _cairo_matrix_compute_determinant (matrix); + + return ISFINITE (det) && det != 0.; +} + +cairo_bool_t +_cairo_matrix_is_scale_0 (const cairo_matrix_t *matrix) +{ + return matrix->xx == 0. && + matrix->xy == 0. && + matrix->yx == 0. && + matrix->yy == 0.; +} + +double +_cairo_matrix_compute_determinant (const cairo_matrix_t *matrix) +{ + double a, b, c, d; + + a = matrix->xx; b = matrix->yx; + c = matrix->xy; d = matrix->yy; + + return a*d - b*c; +} + +/** + * _cairo_matrix_compute_basis_scale_factors: + * @matrix: a matrix + * @basis_scale: the scale factor in the direction of basis + * @normal_scale: the scale factor in the direction normal to the basis + * @x_basis: basis to use. X basis if true, Y basis otherwise. + * + * Computes |Mv| and det(M)/|Mv| for v=[1,0] if x_basis is true, and v=[0,1] + * otherwise, and M is @matrix. + * + * Return value: the scale factor of @matrix on the height of the font, + * or 1.0 if @matrix is %NULL. + **/ +cairo_status_t +_cairo_matrix_compute_basis_scale_factors (const cairo_matrix_t *matrix, + double *basis_scale, double *normal_scale, + cairo_bool_t x_basis) +{ + double det; + + det = _cairo_matrix_compute_determinant (matrix); + + if (! ISFINITE (det)) + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + + if (det == 0) + { + *basis_scale = *normal_scale = 0; + } + else + { + double x = x_basis != 0; + double y = x == 0; + double major, minor; + + cairo_matrix_transform_distance (matrix, &x, &y); + major = hypot (x, y); + /* + * ignore mirroring + */ + if (det < 0) + det = -det; + if (major) + minor = det / major; + else + minor = 0.0; + if (x_basis) + { + *basis_scale = major; + *normal_scale = minor; + } + else + { + *basis_scale = minor; + *normal_scale = major; + } + } + + return CAIRO_STATUS_SUCCESS; +} + +cairo_bool_t +_cairo_matrix_is_integer_translation (const cairo_matrix_t *matrix, + int *itx, int *ity) +{ + if (_cairo_matrix_is_translation (matrix)) + { + cairo_fixed_t x0_fixed = _cairo_fixed_from_double (matrix->x0); + cairo_fixed_t y0_fixed = _cairo_fixed_from_double (matrix->y0); + + if (_cairo_fixed_is_integer (x0_fixed) && + _cairo_fixed_is_integer (y0_fixed)) + { + if (itx) + *itx = _cairo_fixed_integer_part (x0_fixed); + if (ity) + *ity = _cairo_fixed_integer_part (y0_fixed); + + return TRUE; + } + } + + return FALSE; +} + +#define SCALING_EPSILON _cairo_fixed_to_double(1) + +/* This only returns true if the matrix is 90 degree rotations or + * flips. It appears calling code is relying on this. It will return + * false for other rotations even if the scale is one. Approximations + * are allowed to handle matricies filled in using trig functions + * such as sin(M_PI_2). + */ +cairo_bool_t +_cairo_matrix_has_unity_scale (const cairo_matrix_t *matrix) +{ + /* check that the determinant is near +/-1 */ + double det = _cairo_matrix_compute_determinant (matrix); + if (fabs (det * det - 1.0) < SCALING_EPSILON) { + /* check that one axis is close to zero */ + if (fabs (matrix->xy) < SCALING_EPSILON && + fabs (matrix->yx) < SCALING_EPSILON) + return TRUE; + if (fabs (matrix->xx) < SCALING_EPSILON && + fabs (matrix->yy) < SCALING_EPSILON) + return TRUE; + /* If rotations are allowed then it must instead test for + * orthogonality. This is xx*xy+yx*yy ~= 0. + */ + } + return FALSE; +} + +/* By pixel exact here, we mean a matrix that is composed only of + * 90 degree rotations, flips, and integer translations and produces a 1:1 + * mapping between source and destination pixels. If we transform an image + * with a pixel-exact matrix, filtering is not useful. + */ +cairo_bool_t +_cairo_matrix_is_pixel_exact (const cairo_matrix_t *matrix) +{ + cairo_fixed_t x0_fixed, y0_fixed; + + if (! _cairo_matrix_has_unity_scale (matrix)) + return FALSE; + + x0_fixed = _cairo_fixed_from_double (matrix->x0); + y0_fixed = _cairo_fixed_from_double (matrix->y0); + + return _cairo_fixed_is_integer (x0_fixed) && _cairo_fixed_is_integer (y0_fixed); +} + +/* + A circle in user space is transformed into an ellipse in device space. + + The following is a derivation of a formula to calculate the length of the + major axis for this ellipse; this is useful for error bounds calculations. + + Thanks to Walter Brisken for this derivation: + + 1. First some notation: + + All capital letters represent vectors in two dimensions. A prime ' + represents a transformed coordinate. Matrices are written in underlined + form, ie _R_. Lowercase letters represent scalar real values. + + 2. The question has been posed: What is the maximum expansion factor + achieved by the linear transformation + + X' = X _R_ + + where _R_ is a real-valued 2x2 matrix with entries: + + _R_ = [a b] + [c d] . + + In other words, what is the maximum radius, MAX[ |X'| ], reached for any + X on the unit circle ( |X| = 1 ) ? + + 3. Some useful formulae + + (A) through (C) below are standard double-angle formulae. (D) is a lesser + known result and is derived below: + + (A) sin²(θ) = (1 - cos(2*θ))/2 + (B) cos²(θ) = (1 + cos(2*θ))/2 + (C) sin(θ)*cos(θ) = sin(2*θ)/2 + (D) MAX[a*cos(θ) + b*sin(θ)] = sqrt(a² + b²) + + Proof of (D): + + find the maximum of the function by setting the derivative to zero: + + -a*sin(θ)+b*cos(θ) = 0 + + From this it follows that + + tan(θ) = b/a + + and hence + + sin(θ) = b/sqrt(a² + b²) + + and + + cos(θ) = a/sqrt(a² + b²) + + Thus the maximum value is + + MAX[a*cos(θ) + b*sin(θ)] = (a² + b²)/sqrt(a² + b²) + = sqrt(a² + b²) + + 4. Derivation of maximum expansion + + To find MAX[ |X'| ] we search brute force method using calculus. The unit + circle on which X is constrained is to be parameterized by t: + + X(θ) = (cos(θ), sin(θ)) + + Thus + + X'(θ) = X(θ) * _R_ = (cos(θ), sin(θ)) * [a b] + [c d] + = (a*cos(θ) + c*sin(θ), b*cos(θ) + d*sin(θ)). + + Define + + r(θ) = |X'(θ)| + + Thus + + r²(θ) = (a*cos(θ) + c*sin(θ))² + (b*cos(θ) + d*sin(θ))² + = (a² + b²)*cos²(θ) + (c² + d²)*sin²(θ) + + 2*(a*c + b*d)*cos(θ)*sin(θ) + + Now apply the double angle formulae (A) to (C) from above: + + r²(θ) = (a² + b² + c² + d²)/2 + + (a² + b² - c² - d²)*cos(2*θ)/2 + + (a*c + b*d)*sin(2*θ) + = f + g*cos(φ) + h*sin(φ) + + Where + + f = (a² + b² + c² + d²)/2 + g = (a² + b² - c² - d²)/2 + h = (a*c + d*d) + φ = 2*θ + + It is clear that MAX[ |X'| ] = sqrt(MAX[ r² ]). Here we determine MAX[ r² ] + using (D) from above: + + MAX[ r² ] = f + sqrt(g² + h²) + + And finally + + MAX[ |X'| ] = sqrt( f + sqrt(g² + h²) ) + + Which is the solution to this problem. + + Walter Brisken + 2004/10/08 + + (Note that the minor axis length is at the minimum of the above solution, + which is just sqrt ( f - sqrt(g² + h²) ) given the symmetry of (D)). + + + For another derivation of the same result, using Singular Value Decomposition, + see doc/tutorial/src/singular.c. +*/ + +/* determine the length of the major axis of a circle of the given radius + after applying the transformation matrix. */ +double +_cairo_matrix_transformed_circle_major_axis (const cairo_matrix_t *matrix, + double radius) +{ + double a, b, c, d, f, g, h, i, j; + + if (_cairo_matrix_has_unity_scale (matrix)) + return radius; + + _cairo_matrix_get_affine (matrix, + &a, &b, + &c, &d, + NULL, NULL); + + i = a*a + b*b; + j = c*c + d*d; + + f = 0.5 * (i + j); + g = 0.5 * (i - j); + h = a*c + b*d; + + return radius * sqrt (f + hypot (g, h)); + + /* + * we don't need the minor axis length, which is + * double min = radius * sqrt (f - sqrt (g*g+h*h)); + */ +} + +static const pixman_transform_t pixman_identity_transform = {{ + {1 << 16, 0, 0}, + { 0, 1 << 16, 0}, + { 0, 0, 1 << 16} + }}; + +static cairo_status_t +_cairo_matrix_to_pixman_matrix (const cairo_matrix_t *matrix, + pixman_transform_t *pixman_transform, + double xc, + double yc) +{ + cairo_matrix_t inv; + unsigned max_iterations; + + pixman_transform->matrix[0][0] = _cairo_fixed_16_16_from_double (matrix->xx); + pixman_transform->matrix[0][1] = _cairo_fixed_16_16_from_double (matrix->xy); + pixman_transform->matrix[0][2] = _cairo_fixed_16_16_from_double (matrix->x0); + + pixman_transform->matrix[1][0] = _cairo_fixed_16_16_from_double (matrix->yx); + pixman_transform->matrix[1][1] = _cairo_fixed_16_16_from_double (matrix->yy); + pixman_transform->matrix[1][2] = _cairo_fixed_16_16_from_double (matrix->y0); + + pixman_transform->matrix[2][0] = 0; + pixman_transform->matrix[2][1] = 0; + pixman_transform->matrix[2][2] = 1 << 16; + + /* The conversion above breaks cairo's translation invariance: + * a translation of (a, b) in device space translates to + * a translation of (xx * a + xy * b, yx * a + yy * b) + * for cairo, while pixman uses rounded versions of xx ... yy. + * This error increases as a and b get larger. + * + * To compensate for this, we fix the point (xc, yc) in pattern + * space and adjust pixman's transform to agree with cairo's at + * that point. + */ + + if (_cairo_matrix_has_unity_scale (matrix)) + return CAIRO_STATUS_SUCCESS; + + if (unlikely (fabs (matrix->xx) > PIXMAN_MAX_INT || + fabs (matrix->xy) > PIXMAN_MAX_INT || + fabs (matrix->x0) > PIXMAN_MAX_INT || + fabs (matrix->yx) > PIXMAN_MAX_INT || + fabs (matrix->yy) > PIXMAN_MAX_INT || + fabs (matrix->y0) > PIXMAN_MAX_INT)) + { + return _cairo_error (CAIRO_STATUS_INVALID_MATRIX); + } + + /* Note: If we can't invert the transformation, skip the adjustment. */ + inv = *matrix; + if (cairo_matrix_invert (&inv) != CAIRO_STATUS_SUCCESS) + return CAIRO_STATUS_SUCCESS; + + /* find the pattern space coordinate that maps to (xc, yc) */ + max_iterations = 5; + do { + double x,y; + pixman_vector_t vector; + cairo_fixed_16_16_t dx, dy; + + vector.vector[0] = _cairo_fixed_16_16_from_double (xc); + vector.vector[1] = _cairo_fixed_16_16_from_double (yc); + vector.vector[2] = 1 << 16; + + /* If we can't transform the reference point, skip the adjustment. */ + if (! pixman_transform_point_3d (pixman_transform, &vector)) + return CAIRO_STATUS_SUCCESS; + + x = pixman_fixed_to_double (vector.vector[0]); + y = pixman_fixed_to_double (vector.vector[1]); + cairo_matrix_transform_point (&inv, &x, &y); + + /* Ideally, the vector should now be (xc, yc). + * We can now compensate for the resulting error. + */ + x -= xc; + y -= yc; + cairo_matrix_transform_distance (matrix, &x, &y); + dx = _cairo_fixed_16_16_from_double (x); + dy = _cairo_fixed_16_16_from_double (y); + pixman_transform->matrix[0][2] -= dx; + pixman_transform->matrix[1][2] -= dy; + + if (dx == 0 && dy == 0) + return CAIRO_STATUS_SUCCESS; + } while (--max_iterations); + + /* We didn't find an exact match between cairo and pixman, but + * the matrix should be mostly correct */ + return CAIRO_STATUS_SUCCESS; +} + +static inline double +_pixman_nearest_sample (double d) +{ + return ceil (d - .5); +} + +/** + * _cairo_matrix_is_pixman_translation: + * @matrix: a matrix + * @filter: the filter to be used on the pattern transformed by @matrix + * @x_offset: the translation in the X direction + * @y_offset: the translation in the Y direction + * + * Checks if @matrix translated by (x_offset, y_offset) can be + * represented using just an offset (within the range pixman can + * accept) and an identity matrix. + * + * Passing a non-zero value in x_offset/y_offset has the same effect + * as applying cairo_matrix_translate(matrix, x_offset, y_offset) and + * setting x_offset and y_offset to 0. + * + * Upon return x_offset and y_offset contain the translation vector if + * the return value is %TRUE. If the return value is %FALSE, they will + * not be modified. + * + * Return value: %TRUE if @matrix can be represented as a pixman + * translation, %FALSE otherwise. + **/ +cairo_bool_t +_cairo_matrix_is_pixman_translation (const cairo_matrix_t *matrix, + cairo_filter_t filter, + int *x_offset, + int *y_offset) +{ + double tx, ty; + + if (!_cairo_matrix_is_translation (matrix)) + return FALSE; + + if (matrix->x0 == 0. && matrix->y0 == 0.) + return TRUE; + + tx = matrix->x0 + *x_offset; + ty = matrix->y0 + *y_offset; + + if (filter == CAIRO_FILTER_FAST || filter == CAIRO_FILTER_NEAREST) { + tx = _pixman_nearest_sample (tx); + ty = _pixman_nearest_sample (ty); + } else if (tx != floor (tx) || ty != floor (ty)) { + return FALSE; + } + + if (fabs (tx) > PIXMAN_MAX_INT || fabs (ty) > PIXMAN_MAX_INT) + return FALSE; + + *x_offset = _cairo_lround (tx); + *y_offset = _cairo_lround (ty); + return TRUE; +} + +/** + * _cairo_matrix_to_pixman_matrix_offset: + * @matrix: a matrix + * @filter: the filter to be used on the pattern transformed by @matrix + * @xc: the X coordinate of the point to fix in pattern space + * @yc: the Y coordinate of the point to fix in pattern space + * @out_transform: the transformation which best approximates @matrix + * @x_offset: the translation in the X direction + * @y_offset: the translation in the Y direction + * + * This function tries to represent @matrix translated by (x_offset, + * y_offset) as a %pixman_transform_t and an translation. + * + * Passing a non-zero value in x_offset/y_offset has the same effect + * as applying cairo_matrix_translate(matrix, x_offset, y_offset) and + * setting x_offset and y_offset to 0. + * + * If it is possible to represent the matrix with an identity + * %pixman_transform_t and a translation within the valid range for + * pixman, this function will set @out_transform to be the identity, + * @x_offset and @y_offset to be the translation vector and will + * return %CAIRO_INT_STATUS_NOTHING_TO_DO. Otherwise it will try to + * evenly divide the translational component of @matrix between + * @out_transform and (@x_offset, @y_offset). + * + * Upon return x_offset and y_offset contain the translation vector. + * + * Return value: %CAIRO_INT_STATUS_NOTHING_TO_DO if the out_transform + * is the identity, %CAIRO_STATUS_INVALID_MATRIX if it was not + * possible to represent @matrix as a pixman_transform_t without + * overflows, %CAIRO_STATUS_SUCCESS otherwise. + **/ +cairo_status_t +_cairo_matrix_to_pixman_matrix_offset (const cairo_matrix_t *matrix, + cairo_filter_t filter, + double xc, + double yc, + pixman_transform_t *out_transform, + int *x_offset, + int *y_offset) +{ + cairo_bool_t is_pixman_translation; + + is_pixman_translation = _cairo_matrix_is_pixman_translation (matrix, + filter, + x_offset, + y_offset); + + if (is_pixman_translation) { + *out_transform = pixman_identity_transform; + return CAIRO_INT_STATUS_NOTHING_TO_DO; + } else { + cairo_matrix_t m; + + m = *matrix; + cairo_matrix_translate (&m, *x_offset, *y_offset); + if (m.x0 != 0.0 || m.y0 != 0.0) { + double tx, ty, norm; + int i, j; + + /* pixman also limits the [xy]_offset to 16 bits so evenly + * spread the bits between the two. + * + * To do this, find the solutions of: + * |x| = |x*m.xx + y*m.xy + m.x0| + * |y| = |x*m.yx + y*m.yy + m.y0| + * + * and select the one whose maximum norm is smallest. + */ + tx = m.x0; + ty = m.y0; + norm = MAX (fabs (tx), fabs (ty)); + + for (i = -1; i < 2; i+=2) { + for (j = -1; j < 2; j+=2) { + double x, y, den, new_norm; + + den = (m.xx + i) * (m.yy + j) - m.xy * m.yx; + if (fabs (den) < DBL_EPSILON) + continue; + + x = m.y0 * m.xy - m.x0 * (m.yy + j); + y = m.x0 * m.yx - m.y0 * (m.xx + i); + + den = 1 / den; + x *= den; + y *= den; + + new_norm = MAX (fabs (x), fabs (y)); + if (norm > new_norm) { + norm = new_norm; + tx = x; + ty = y; + } + } + } + + tx = floor (tx); + ty = floor (ty); + *x_offset = -tx; + *y_offset = -ty; + cairo_matrix_translate (&m, tx, ty); + } else { + *x_offset = 0; + *y_offset = 0; + } + + return _cairo_matrix_to_pixman_matrix (&m, out_transform, xc, yc); + } +} diff --git a/local/recipes/libs/cairo/source/src/cairo-mempool-private.h b/local/recipes/libs/cairo/source/src/cairo-mempool-private.h new file mode 100644 index 0000000000..a09f6ce51f --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-mempool-private.h @@ -0,0 +1,85 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2007 Chris Wilson + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributors(s): + * Chris Wilson + */ + +#ifndef CAIRO_MEMPOOL_PRIVATE_H +#define CAIRO_MEMPOOL_PRIVATE_H + +#include "cairo-compiler-private.h" +#include "cairo-error-private.h" + +#include /* for size_t */ + +CAIRO_BEGIN_DECLS + +typedef struct _cairo_mempool cairo_mempool_t; + +struct _cairo_mempool { + char *base; + struct _cairo_memblock { + int bits; + cairo_list_t link; + } *blocks; + cairo_list_t free[32]; + unsigned char *map; + + unsigned int num_blocks; + int min_bits; /* Minimum block size is 1 << min_bits */ + int num_sizes; + int max_free_bits; + + size_t free_bytes; + size_t max_bytes; +}; + +cairo_private cairo_status_t +_cairo_mempool_init (cairo_mempool_t *pool, + void *base, + size_t bytes, + int min_bits, + int num_sizes); + +cairo_private void * +_cairo_mempool_alloc (cairo_mempool_t *pi, size_t bytes); + +cairo_private void +_cairo_mempool_free (cairo_mempool_t *pi, void *storage); + +cairo_private void +_cairo_mempool_fini (cairo_mempool_t *pool); + +CAIRO_END_DECLS + +#endif /* CAIRO_MEMPOOL_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-mempool.c b/local/recipes/libs/cairo/source/src/cairo-mempool.c new file mode 100644 index 0000000000..6cebaf123a --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-mempool.c @@ -0,0 +1,369 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2007 Chris Wilson + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipoolent may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributors(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-mempool-private.h" +#include "cairo-list-inline.h" + +/* a simple buddy allocator for memory pools + * XXX fragmentation? use Doug Lea's malloc? + */ + +#define BITTEST(p, n) ((p)->map[(n) >> 3] & (128 >> ((n) & 7))) +#define BITSET(p, n) ((p)->map[(n) >> 3] |= (128 >> ((n) & 7))) +#define BITCLEAR(p, n) ((p)->map[(n) >> 3] &= ~(128 >> ((n) & 7))) + +static void +clear_bits (cairo_mempool_t *pool, size_t first, size_t last) +{ + size_t i, n = last; + size_t first_full = (first + 7) & ~7; + size_t past_full = last & ~7; + size_t bytes; + + if (n > first_full) + n = first_full; + for (i = first; i < n; i++) + BITCLEAR (pool, i); + + if (past_full > first_full) { + bytes = past_full - first_full; + bytes = bytes >> 3; + memset (pool->map + (first_full >> 3), 0, bytes); + } + + if (past_full < n) + past_full = n; + for (i = past_full; i < last; i++) + BITCLEAR (pool, i); +} + +static void +free_bits (cairo_mempool_t *pool, size_t start, int bits, cairo_bool_t clear) +{ + struct _cairo_memblock *block; + + if (clear) + clear_bits (pool, start, start + (((size_t) 1) << bits)); + + block = pool->blocks + start; + block->bits = bits; + + cairo_list_add (&block->link, &pool->free[bits]); + + pool->free_bytes += ((size_t) 1) << (bits + pool->min_bits); + if (bits > pool->max_free_bits) + pool->max_free_bits = bits; +} + +/* Add a chunk to the free list */ +static void +free_blocks (cairo_mempool_t *pool, + size_t first, + size_t last, + cairo_bool_t clear) +{ + size_t i, len; + int bits = 0; + + for (i = first, len = 1; i < last; i += len) { + /* To avoid cost quadratic in the number of different + * blocks produced from this chunk of store, we have to + * use the size of the previous block produced from this + * chunk as the starting point to work out the size of the + * next block we can produce. If you look at the binary + * representation of the starting points of the blocks + * produced, you can see that you first of all increase the + * size of the blocks produced up to some maximum as the + * address dealt with gets offsets added on which zap out + * low order bits, then decrease as the low order bits of the + * final block produced get added in. E.g. as you go from + * 001 to 0111 you generate blocks + * of size 001 at 001 taking you to 010 + * of size 010 at 010 taking you to 100 + * of size 010 at 100 taking you to 110 + * of size 001 at 110 taking you to 111 + * So the maximum total cost of the loops below this comment + * is one trip from the lowest blocksize to the highest and + * back again. + */ + while (bits < pool->num_sizes - 1) { + size_t next_bits = bits + 1; + size_t next_len = len << 1; + + if (i + next_bits > last) { + /* off end of chunk to be freed */ + break; + } + + if (i & (next_len - 1)) /* block would not be on boundary */ + break; + + bits = next_bits; + len = next_len; + } + + do { + if (i + len <= last && /* off end of chunk to be freed */ + (i & (len - 1)) == 0) /* block would not be on boundary */ + break; + + bits--; len >>=1; + } while (len); + + if (len == 0) + break; + + free_bits (pool, i, bits, clear); + } +} + +static struct _cairo_memblock * +get_buddy (cairo_mempool_t *pool, size_t offset, int bits) +{ + struct _cairo_memblock *block; + + if (offset + (((size_t) 1) << bits) >= pool->num_blocks) + return NULL; /* invalid */ + + if (BITTEST (pool, offset + (((size_t) 1) << bits) - 1)) + return NULL; /* buddy is allocated */ + + block = pool->blocks + offset; + if (block->bits != bits) + return NULL; /* buddy is partially allocated */ + + return block; +} + +static void +merge_buddies (cairo_mempool_t *pool, + struct _cairo_memblock *block, + int max_bits) +{ + size_t block_offset = block - pool->blocks; + int bits = block->bits; + + while (bits < max_bits - 1) { + /* while you can, merge two blocks and get a legal block size */ + size_t buddy_offset = block_offset ^ (((size_t) 1) << bits); + + block = get_buddy (pool, buddy_offset, bits); + if (block == NULL) + break; + + cairo_list_del (&block->link); + + /* Merged block starts at buddy */ + if (buddy_offset < block_offset) + block_offset = buddy_offset; + + bits++; + } + + block = pool->blocks + block_offset; + block->bits = bits; + cairo_list_add (&block->link, &pool->free[bits]); + + if (bits > pool->max_free_bits) + pool->max_free_bits = bits; +} + +/* attempt to merge all available buddies up to a particular size */ +static int +merge_bits (cairo_mempool_t *pool, int max_bits) +{ + struct _cairo_memblock *block, *buddy, *next; + int bits; + + for (bits = 0; bits < max_bits - 1; bits++) { + cairo_list_foreach_entry_safe (block, next, + struct _cairo_memblock, + &pool->free[bits], + link) + { + size_t buddy_offset = (block - pool->blocks) ^ (((size_t) 1) << bits); + + buddy = get_buddy (pool, buddy_offset, bits); + if (buddy == NULL) + continue; + + if (buddy == next) { + next = cairo_container_of (buddy->link.next, + struct _cairo_memblock, + link); + } + + cairo_list_del (&block->link); + merge_buddies (pool, block, max_bits); + } + } + + return pool->max_free_bits; +} + +/* find store for 1 << bits blocks */ +static void * +buddy_malloc (cairo_mempool_t *pool, int bits) +{ + size_t past, offset; + struct _cairo_memblock *block; + int b; + + if (bits > pool->max_free_bits && bits > merge_bits (pool, bits)) + return NULL; + + /* Find a list with blocks big enough on it */ + block = NULL; + for (b = bits; b <= pool->max_free_bits; b++) { + if (! cairo_list_is_empty (&pool->free[b])) { + block = cairo_list_first_entry (&pool->free[b], + struct _cairo_memblock, + link); + break; + } + } + assert (block != NULL); + + cairo_list_del (&block->link); + + while (cairo_list_is_empty (&pool->free[pool->max_free_bits])) { + if (--pool->max_free_bits == -1) + break; + } + + /* Mark end of allocated area */ + offset = block - pool->blocks; + past = offset + (((size_t) 1) << bits); + BITSET (pool, past - 1); + block->bits = bits; + + /* If we used a larger free block than we needed, free the rest */ + pool->free_bytes -= ((size_t) 1) << (b + pool->min_bits); + free_blocks (pool, past, offset + (((size_t) 1) << b), 0); + + return pool->base + ((block - pool->blocks) << pool->min_bits); +} + +cairo_status_t +_cairo_mempool_init (cairo_mempool_t *pool, + void *base, size_t bytes, + int min_bits, int num_sizes) +{ + uintptr_t tmp; + int num_blocks; + int i; + + /* Align the start to an integral chunk */ + tmp = ((uintptr_t) base) & ((((size_t) 1) << min_bits) - 1); + if (tmp) { + tmp = (((size_t) 1) << min_bits) - tmp; + base = (char *)base + tmp; + bytes -= tmp; + } + + assert ((((uintptr_t) base) & ((((size_t) 1) << min_bits) - 1)) == 0); + assert (num_sizes < ARRAY_LENGTH (pool->free)); + + pool->base = base; + pool->free_bytes = 0; + pool->max_bytes = bytes; + pool->max_free_bits = -1; + + num_blocks = bytes >> min_bits; + pool->blocks = _cairo_calloc_ab (num_blocks, sizeof (struct _cairo_memblock)); + if (pool->blocks == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + pool->num_blocks = num_blocks; + pool->min_bits = min_bits; + pool->num_sizes = num_sizes; + + for (i = 0; i < ARRAY_LENGTH (pool->free); i++) + cairo_list_init (&pool->free[i]); + + pool->map = _cairo_malloc ((num_blocks + 7) >> 3); + if (pool->map == NULL) { + free (pool->blocks); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + memset (pool->map, -1, (num_blocks + 7) >> 3); + clear_bits (pool, 0, num_blocks); + + /* Now add all blocks to the free list */ + free_blocks (pool, 0, num_blocks, 1); + + return CAIRO_STATUS_SUCCESS; +} + +void * +_cairo_mempool_alloc (cairo_mempool_t *pool, size_t bytes) +{ + size_t size; + int bits; + + size = ((size_t) 1) << pool->min_bits; + for (bits = 0; size < bytes; bits++) + size <<= 1; + if (bits >= pool->num_sizes) + return NULL; + + return buddy_malloc (pool, bits); +} + +void +_cairo_mempool_free (cairo_mempool_t *pool, void *storage) +{ + size_t block_offset; + struct _cairo_memblock *block; + + block_offset = ((char *)storage - pool->base) >> pool->min_bits; + block = pool->blocks + block_offset; + + BITCLEAR (pool, block_offset + ((((size_t) 1) << block->bits) - 1)); + pool->free_bytes += ((size_t) 1) << (block->bits + pool->min_bits); + + merge_buddies (pool, block, pool->num_sizes); +} + +void +_cairo_mempool_fini (cairo_mempool_t *pool) +{ + free (pool->map); + free (pool->blocks); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-mesh-pattern-rasterizer.c b/local/recipes/libs/cairo/source/src/cairo-mesh-pattern-rasterizer.c new file mode 100644 index 0000000000..f47800c8ae --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-mesh-pattern-rasterizer.c @@ -0,0 +1,941 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright 2009 Andrea Canciani + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Andrea Canciani. + * + * Contributor(s): + * Andrea Canciani + */ + +#include "cairoint.h" + +#include "cairo-array-private.h" +#include "cairo-pattern-private.h" + +/* + * Rasterizer for mesh patterns. + * + * This implementation is based on techniques derived from several + * papers (available from ACM): + * + * - Lien, Shantz and Pratt "Adaptive Forward Differencing for + * Rendering Curves and Surfaces" (discussion of the AFD technique, + * bound of 1/sqrt(2) on step length without proof) + * + * - Popescu and Rosen, "Forward rasterization" (description of + * forward rasterization, proof of the previous bound) + * + * - Klassen, "Integer Forward Differencing of Cubic Polynomials: + * Analysis and Algorithms" + * + * - Klassen, "Exact Integer Hybrid Subdivision and Forward + * Differencing of Cubics" (improving the bound on the minimum + * number of steps) + * + * - Chang, Shantz and Rocchetti, "Rendering Cubic Curves and Surfaces + * with Integer Adaptive Forward Differencing" (analysis of forward + * differencing applied to Bezier patches) + * + * Notes: + * - Poor performance expected in degenerate cases + * + * - Patches mostly outside the drawing area are drawn completely (and + * clipped), wasting time + * + * - Both previous problems are greatly reduced by splitting until a + * reasonably small size and clipping the new tiles: execution time + * is quadratic in the convex-hull diameter instead than linear to + * the painted area. Splitting the tiles doesn't change the painted + * area but (usually) reduces the bounding box area (bbox area can + * remain the same after splitting, but cannot grow) + * + * - The initial implementation used adaptive forward differencing, + * but simple forward differencing scored better in benchmarks + * + * Idea: + * + * We do a sampling over the cubic patch with step du and dv (in the + * two parameters) that guarantees that any point of our sampling will + * be at most at 1/sqrt(2) from its adjacent points. In formulae + * (assuming B is the patch): + * + * |B(u,v) - B(u+du,v)| < 1/sqrt(2) + * |B(u,v) - B(u,v+dv)| < 1/sqrt(2) + * + * This means that every pixel covered by the patch will contain at + * least one of the samples, thus forward rasterization can be + * performed. Sketch of proof (from Popescu and Rosen): + * + * Let's take the P pixel we're interested into. If we assume it to be + * square, its boundaries define 9 regions on the plane: + * + * 1|2|3 + * -+-+- + * 8|P|4 + * -+-+- + * 7|6|5 + * + * Let's check that the pixel P will contain at least one point + * assuming that it is covered by the patch. + * + * Since the pixel is covered by the patch, its center will belong to + * (at least) one of the quads: + * + * {(B(u,v), B(u+du,v), B(u,v+dv), B(u+du,v+dv)) for u,v in [0,1]} + * + * If P doesn't contain any of the corners of the quad: + * + * - if one of the corners is in 1,3,5 or 7, other two of them have to + * be in 2,4,6 or 8, thus if the last corner is not in P, the length + * of one of the edges will be > 1/sqrt(2) + * + * - if none of the corners is in 1,3,5 or 7, all of them are in 2,4,6 + * and/or 8. If they are all in different regions, they can't + * satisfy the distance constraint. If two of them are in the same + * region (let's say 2), no point is in 6 and again it is impossible + * to have the center of P in the quad respecting the distance + * constraint (both these assertions can be checked by continuity + * considering the length of the edges of a quad with the vertices + * on the edges of P) + * + * Each of the cases led to a contradiction, so P contains at least + * one of the corners of the quad. + */ + +/* + * Make sure that errors are less than 1 in fixed point math if you + * change these values. + * + * The error is amplified by about steps^3/4 times. + * The rasterizer always uses a number of steps that is a power of 2. + * + * 256 is the maximum allowed number of steps (to have error < 1) + * using 8.24 for the differences. + */ +#define STEPS_MAX_V 256.0 +#define STEPS_MAX_U 256.0 + +/* + * If the patch/curve is only partially visible, split it to a finer + * resolution to get higher chances to clip (part of) it. + * + * These values have not been computed, but simply obtained + * empirically (by benchmarking some patches). They should never be + * greater than STEPS_MAX_V (or STEPS_MAX_U), but they can be as small + * as 1 (depending on how much you want to spend time in splitting the + * patch/curve when trying to save some rasterization time). + */ +#define STEPS_CLIP_V 64.0 +#define STEPS_CLIP_U 64.0 + + +/* Utils */ +static inline double +sqlen (cairo_point_double_t p0, cairo_point_double_t p1) +{ + cairo_point_double_t delta; + + delta.x = p0.x - p1.x; + delta.y = p0.y - p1.y; + + return delta.x * delta.x + delta.y * delta.y; +} + +static inline int16_t +_color_delta_to_shifted_short (int32_t from, int32_t to, int shift) +{ + int32_t delta = to - from; + + /* We need to round toward zero, because otherwise adding the + * delta 2^shift times can overflow */ + if (delta >= 0) + return delta >> shift; + else + return -((-delta) >> shift); +} + +/* + * Convert a number of steps to the equivalent shift. + * + * Input: the square of the minimum number of steps + * + * Output: the smallest integer x such that 2^x > steps + */ +static inline int +sqsteps2shift (double steps_sq) +{ + int r; + frexp (MAX (1.0, steps_sq), &r); + return (r + 1) >> 1; +} + +/* + * FD functions + * + * A Bezier curve is defined (with respect to a parameter t in + * [0,1]) from its nodes (x,y,z,w) like this: + * + * B(t) = x(1-t)^3 + 3yt(1-t)^2 + 3zt^2(1-t) + wt^3 + * + * To efficiently evaluate a Bezier curve, the rasterizer uses forward + * differences. Given x, y, z, w (the 4 nodes of the Bezier curve), it + * is possible to convert them to forward differences form and walk + * over the curve using fd_init (), fd_down () and fd_fwd (). + * + * f[0] is always the value of the Bezier curve for "current" t. + */ + +/* + * Initialize the coefficient for forward differences. + * + * Input: x,y,z,w are the 4 nodes of the Bezier curve + * + * Output: f[i] is the i-th difference of the curve + * + * f[0] is the value of the curve for t==0, i.e. f[0]==x. + * + * The initial step is 1; this means that each step increases t by 1 + * (so fd_init () immediately followed by fd_fwd (f) n times makes + * f[0] be the value of the curve for t==n). + */ +static inline void +fd_init (double x, double y, double z, double w, double f[4]) +{ + f[0] = x; + f[1] = w - x; + f[2] = 6. * (w - 2. * z + y); + f[3] = 6. * (w - 3. * z + 3. * y - x); +} + +/* + * Halve the step of the coefficients for forward differences. + * + * Input: f[i] is the i-th difference of the curve + * + * Output: f[i] is the i-th difference of the curve with half the + * original step + * + * f[0] is not affected, so the current t is not changed. + * + * The other coefficients are changed so that the step is half the + * original step. This means that doing fd_fwd (f) n times with the + * input f results in the same f[0] as doing fd_fwd (f) 2n times with + * the output f. + */ +static inline void +fd_down (double f[4]) +{ + f[3] *= 0.125; + f[2] = f[2] * 0.25 - f[3]; + f[1] = (f[1] - f[2]) * 0.5; +} + +/* + * Perform one step of forward differences along the curve. + * + * Input: f[i] is the i-th difference of the curve + * + * Output: f[i] is the i-th difference of the curve after one step + */ +static inline void +fd_fwd (double f[4]) +{ + f[0] += f[1]; + f[1] += f[2]; + f[2] += f[3]; +} + +/* + * Transform to integer forward differences. + * + * Input: d[n] is the n-th difference (in double precision) + * + * Output: i[n] is the n-th difference (in fixed point precision) + * + * i[0] is 9.23 fixed point, other differences are 4.28 fixed point. + */ +static inline void +fd_fixed (double d[4], int32_t i[4]) +{ + i[0] = _cairo_fixed_16_16_from_double (256 * 2 * d[0]); + i[1] = _cairo_fixed_16_16_from_double (256 * 16 * d[1]); + i[2] = _cairo_fixed_16_16_from_double (256 * 16 * d[2]); + i[3] = _cairo_fixed_16_16_from_double (256 * 16 * d[3]); +} + +/* + * Perform one step of integer forward differences along the curve. + * + * Input: f[n] is the n-th difference + * + * Output: f[n] is the n-th difference + * + * f[0] is 9.23 fixed point, other differences are 4.28 fixed point. + */ +static inline void +fd_fixed_fwd (int32_t f[4]) +{ + f[0] += (f[1] >> 5) + ((f[1] >> 4) & 1); + f[1] += f[2]; + f[2] += f[3]; +} + +/* + * Compute the minimum number of steps that guarantee that walking + * over a curve will leave no holes. + * + * Input: p[0..3] the nodes of the Bezier curve + * + * Returns: the square of the number of steps + * + * Idea: + * + * We want to make sure that at every step we move by less than + * 1/sqrt(2). + * + * The derivative of the cubic Bezier with nodes (p0, p1, p2, p3) is + * the quadratic Bezier with nodes (p1-p0, p2-p1, p3-p2) scaled by 3, + * so (since a Bezier curve is always bounded by its convex hull), we + * can say that: + * + * max(|B'(t)|) <= 3 max (|p1-p0|, |p2-p1|, |p3-p2|) + * + * We can improve this by noticing that a quadratic Bezier (a,b,c) is + * bounded by the quad (a,lerp(a,b,t),lerp(b,c,t),c) for any t, so + * (substituting the previous values, using t=0.5 and simplifying): + * + * max(|B'(t)|) <= 3 max (|p1-p0|, |p2-p0|/2, |p3-p1|/2, |p3-p2|) + * + * So, to guarantee a maximum step length of 1/sqrt(2) we must do: + * + * 3 max (|p1-p0|, |p2-p0|/2, |p3-p1|/2, |p3-p2|) sqrt(2) steps + */ +static inline double +bezier_steps_sq (cairo_point_double_t p[4]) +{ + double tmp = sqlen (p[0], p[1]); + tmp = MAX (tmp, sqlen (p[2], p[3])); + tmp = MAX (tmp, sqlen (p[0], p[2]) * .25); + tmp = MAX (tmp, sqlen (p[1], p[3]) * .25); + return 18.0 * tmp; +} + +/* + * Split a 1D Bezier cubic using de Casteljau's algorithm. + * + * Input: x,y,z,w the nodes of the Bezier curve + * + * Output: x0,y0,z0,w0 and x1,y1,z1,w1 are respectively the nodes of + * the first half and of the second half of the curve + * + * The output control nodes have to be distinct. + */ +static inline void +split_bezier_1D (double x, double y, double z, double w, + double *x0, double *y0, double *z0, double *w0, + double *x1, double *y1, double *z1, double *w1) +{ + double tmp; + + *x0 = x; + *w1 = w; + + tmp = 0.5 * (y + z); + *y0 = 0.5 * (x + y); + *z1 = 0.5 * (z + w); + + *z0 = 0.5 * (*y0 + tmp); + *y1 = 0.5 * (tmp + *z1); + + *w0 = *x1 = 0.5 * (*z0 + *y1); +} + +/* + * Split a Bezier curve using de Casteljau's algorithm. + * + * Input: p[0..3] the nodes of the Bezier curve + * + * Output: fst_half[0..3] and snd_half[0..3] are respectively the + * nodes of the first and of the second half of the curve + * + * fst_half and snd_half must be different, but they can be the same as + * nodes. + */ +static void +split_bezier (cairo_point_double_t p[4], + cairo_point_double_t fst_half[4], + cairo_point_double_t snd_half[4]) +{ + split_bezier_1D (p[0].x, p[1].x, p[2].x, p[3].x, + &fst_half[0].x, &fst_half[1].x, &fst_half[2].x, &fst_half[3].x, + &snd_half[0].x, &snd_half[1].x, &snd_half[2].x, &snd_half[3].x); + + split_bezier_1D (p[0].y, p[1].y, p[2].y, p[3].y, + &fst_half[0].y, &fst_half[1].y, &fst_half[2].y, &fst_half[3].y, + &snd_half[0].y, &snd_half[1].y, &snd_half[2].y, &snd_half[3].y); +} + + +typedef enum _intersection { + INSIDE = -1, /* the interval is entirely contained in the reference interval */ + OUTSIDE = 0, /* the interval has no intersection with the reference interval */ + PARTIAL = 1 /* the interval intersects the reference interval (but is not fully inside it) */ +} intersection_t; + +/* + * Check if an interval if inside another. + * + * Input: a,b are the extrema of the first interval + * c,d are the extrema of the second interval + * + * Returns: INSIDE iff [a,b) intersection [c,d) = [a,b) + * OUTSIDE iff [a,b) intersection [c,d) = {} + * PARTIAL otherwise + * + * The function assumes a < b and c < d + * + * Note: Bitwise-anding the results along each component gives the + * expected result for [a,b) x [A,B) intersection [c,d) x [C,D). + */ +static inline int +intersect_interval (double a, double b, double c, double d) +{ + if (c <= a && b <= d) + return INSIDE; + else if (a >= d || b <= c) + return OUTSIDE; + else + return PARTIAL; +} + +/* + * Set the color of a pixel. + * + * Input: data is the base pointer of the image + * width, height are the dimensions of the image + * stride is the stride in bytes between adjacent rows + * x, y are the coordinates of the pixel to be colored + * r,g,b,a are the color components of the color to be set + * + * Output: the (x,y) pixel in data has the (r,g,b,a) color + * + * The input color components are not premultiplied, but the data + * stored in the image is assumed to be in CAIRO_FORMAT_ARGB32 (8 bpc, + * premultiplied). + * + * If the pixel to be set is outside the image, this function does + * nothing. + */ +static inline void +draw_pixel (unsigned char *data, int width, int height, int stride, + int x, int y, uint16_t r, uint16_t g, uint16_t b, uint16_t a) +{ + if (likely (0 <= x && 0 <= y && x < width && y < height)) { + uint32_t tr, tg, tb, ta; + + /* Premultiply and round */ + ta = a; + tr = r * ta + 0x8000; + tg = g * ta + 0x8000; + tb = b * ta + 0x8000; + + tr += tr >> 16; + tg += tg >> 16; + tb += tb >> 16; + + *((uint32_t*) (data + y*(ptrdiff_t)stride + 4*x)) = ((ta << 16) & 0xff000000) | + ((tr >> 8) & 0xff0000) | ((tg >> 16) & 0xff00) | (tb >> 24); + } +} + +/* + * Forward-rasterize a cubic curve using forward differences. + * + * Input: data is the base pointer of the image + * width, height are the dimensions of the image + * stride is the stride in bytes between adjacent rows + * ushift is log2(n) if n is the number of desired steps + * dxu[i], dyu[i] are the x,y forward differences of the curve + * r0,g0,b0,a0 are the color components of the start point + * r3,g3,b3,a3 are the color components of the end point + * + * Output: data will be changed to have the requested curve drawn in + * the specified colors + * + * The input color components are not premultiplied, but the data + * stored in the image is assumed to be in CAIRO_FORMAT_ARGB32 (8 bpc, + * premultiplied). + * + * The function draws n+1 pixels, that is from the point at step 0 to + * the point at step n, both included. This is the discrete equivalent + * to drawing the curve for values of the interpolation parameter in + * [0,1] (including both extremes). + */ +static inline void +rasterize_bezier_curve (unsigned char *data, int width, int height, int stride, + int ushift, double dxu[4], double dyu[4], + uint16_t r0, uint16_t g0, uint16_t b0, uint16_t a0, + uint16_t r3, uint16_t g3, uint16_t b3, uint16_t a3) +{ + int32_t xu[4], yu[4]; + int x0, y0, u, usteps = 1 << ushift; + + uint16_t r = r0, g = g0, b = b0, a = a0; + int16_t dr = _color_delta_to_shifted_short (r0, r3, ushift); + int16_t dg = _color_delta_to_shifted_short (g0, g3, ushift); + int16_t db = _color_delta_to_shifted_short (b0, b3, ushift); + int16_t da = _color_delta_to_shifted_short (a0, a3, ushift); + + fd_fixed (dxu, xu); + fd_fixed (dyu, yu); + + /* + * Use (dxu[0],dyu[0]) as origin for the forward differences. + * + * This makes it possible to handle much larger coordinates (the + * ones that can be represented as cairo_fixed_t) + */ + x0 = _cairo_fixed_from_double (dxu[0]); + y0 = _cairo_fixed_from_double (dyu[0]); + xu[0] = 0; + yu[0] = 0; + + for (u = 0; u <= usteps; ++u) { + /* + * This rasterizer assumes that pixels are integer aligned + * squares, so a generic (x,y) point belongs to the pixel with + * top-left coordinates (floor(x), floor(y)) + */ + + int x = _cairo_fixed_integer_floor (x0 + (xu[0] >> 15) + ((xu[0] >> 14) & 1)); + int y = _cairo_fixed_integer_floor (y0 + (yu[0] >> 15) + ((yu[0] >> 14) & 1)); + + draw_pixel (data, width, height, stride, x, y, r, g, b, a); + + fd_fixed_fwd (xu); + fd_fixed_fwd (yu); + r += dr; + g += dg; + b += db; + a += da; + } +} + +/* + * Clip, split and rasterize a Bezier curve. + * + * Input: data is the base pointer of the image + * width, height are the dimensions of the image + * stride is the stride in bytes between adjacent rows + * p[i] is the i-th node of the Bezier curve + * c0[i] is the i-th color component at the start point + * c3[i] is the i-th color component at the end point + * + * Output: data will be changed to have the requested curve drawn in + * the specified colors + * + * The input color components are not premultiplied, but the data + * stored in the image is assumed to be in CAIRO_FORMAT_ARGB32 (8 bpc, + * premultiplied). + * + * The color components are red, green, blue and alpha, in this order. + * + * The function guarantees that it will draw the curve with a step + * small enough to never have a distance above 1/sqrt(2) between two + * consecutive points (which is needed to ensure that no hole can + * appear when using this function to rasterize a patch). + */ +static void +draw_bezier_curve (unsigned char *data, int width, int height, int stride, + cairo_point_double_t p[4], double c0[4], double c3[4]) +{ + double top, bottom, left, right, steps_sq; + int i, v; + + top = bottom = p[0].y; + for (i = 1; i < 4; ++i) { + top = MIN (top, p[i].y); + bottom = MAX (bottom, p[i].y); + } + + /* Check visibility */ + v = intersect_interval (top, bottom, 0, height); + if (v == OUTSIDE) + return; + + left = right = p[0].x; + for (i = 1; i < 4; ++i) { + left = MIN (left, p[i].x); + right = MAX (right, p[i].x); + } + + v &= intersect_interval (left, right, 0, width); + if (v == OUTSIDE) + return; + + steps_sq = bezier_steps_sq (p); + if (steps_sq >= (v == INSIDE ? STEPS_MAX_U * STEPS_MAX_U : STEPS_CLIP_U * STEPS_CLIP_U)) { + /* + * The number of steps is greater than the threshold. This + * means that either the error would become too big if we + * directly rasterized it or that we can probably save some + * time by splitting the curve and clipping part of it + */ + cairo_point_double_t first[4], second[4]; + double midc[4]; + split_bezier (p, first, second); + midc[0] = (c0[0] + c3[0]) * 0.5; + midc[1] = (c0[1] + c3[1]) * 0.5; + midc[2] = (c0[2] + c3[2]) * 0.5; + midc[3] = (c0[3] + c3[3]) * 0.5; + draw_bezier_curve (data, width, height, stride, first, c0, midc); + draw_bezier_curve (data, width, height, stride, second, midc, c3); + } else { + double xu[4], yu[4]; + int ushift = sqsteps2shift (steps_sq), k; + + fd_init (p[0].x, p[1].x, p[2].x, p[3].x, xu); + fd_init (p[0].y, p[1].y, p[2].y, p[3].y, yu); + + for (k = 0; k < ushift; ++k) { + fd_down (xu); + fd_down (yu); + } + + rasterize_bezier_curve (data, width, height, stride, ushift, + xu, yu, + _cairo_color_double_to_short (c0[0]), + _cairo_color_double_to_short (c0[1]), + _cairo_color_double_to_short (c0[2]), + _cairo_color_double_to_short (c0[3]), + _cairo_color_double_to_short (c3[0]), + _cairo_color_double_to_short (c3[1]), + _cairo_color_double_to_short (c3[2]), + _cairo_color_double_to_short (c3[3])); + + /* Draw the end point, to make sure that we didn't leave it + * out because of rounding */ + draw_pixel (data, width, height, stride, + _cairo_fixed_integer_floor (_cairo_fixed_from_double (p[3].x)), + _cairo_fixed_integer_floor (_cairo_fixed_from_double (p[3].y)), + _cairo_color_double_to_short (c3[0]), + _cairo_color_double_to_short (c3[1]), + _cairo_color_double_to_short (c3[2]), + _cairo_color_double_to_short (c3[3])); + } +} + +/* + * Forward-rasterize a cubic Bezier patch using forward differences. + * + * Input: data is the base pointer of the image + * width, height are the dimensions of the image + * stride is the stride in bytes between adjacent rows + * vshift is log2(n) if n is the number of desired steps + * p[i][j], p[i][j] are the nodes of the Bezier patch + * col[i][j] is the j-th color component of the i-th corner + * + * Output: data will be changed to have the requested patch drawn in + * the specified colors + * + * The nodes of the patch are as follows: + * + * u\v 0 - > 1 + * 0 p00 p01 p02 p03 + * | p10 p11 p12 p13 + * v p20 p21 p22 p23 + * 1 p30 p31 p32 p33 + * + * i.e. u varies along the first component (rows), v varies along the + * second one (columns). + * + * The color components are red, green, blue and alpha, in this order. + * c[0..3] are the colors in p00, p30, p03, p33 respectively + * + * The input color components are not premultiplied, but the data + * stored in the image is assumed to be in CAIRO_FORMAT_ARGB32 (8 bpc, + * premultiplied). + * + * If the patch folds over itself, the part with the highest v + * parameter is considered above. If both have the same v, the one + * with the highest u parameter is above. + * + * The function draws n+1 curves, that is from the curve at step 0 to + * the curve at step n, both included. This is the discrete equivalent + * to drawing the patch for values of the interpolation parameter in + * [0,1] (including both extremes). + */ +static inline void +rasterize_bezier_patch (unsigned char *data, int width, int height, int stride, int vshift, + cairo_point_double_t p[4][4], double col[4][4]) +{ + double pv[4][2][4], cstart[4], cend[4], dcstart[4], dcend[4]; + int v, i, k; + + v = 1 << vshift; + + /* + * pv[i][0] is the function (represented using forward + * differences) mapping v to the x coordinate of the i-th node of + * the Bezier curve with parameter u. + * (Likewise p[i][0] gives the y coordinate). + * + * This means that (pv[0][0][0],pv[0][1][0]), + * (pv[1][0][0],pv[1][1][0]), (pv[2][0][0],pv[2][1][0]) and + * (pv[3][0][0],pv[3][1][0]) are the nodes of the Bezier curve for + * the "current" v value (see the FD comments for more details). + */ + for (i = 0; i < 4; ++i) { + fd_init (p[i][0].x, p[i][1].x, p[i][2].x, p[i][3].x, pv[i][0]); + fd_init (p[i][0].y, p[i][1].y, p[i][2].y, p[i][3].y, pv[i][1]); + for (k = 0; k < vshift; ++k) { + fd_down (pv[i][0]); + fd_down (pv[i][1]); + } + } + + for (i = 0; i < 4; ++i) { + cstart[i] = col[0][i]; + cend[i] = col[1][i]; + dcstart[i] = (col[2][i] - col[0][i]) / v; + dcend[i] = (col[3][i] - col[1][i]) / v; + } + + v++; + while (v--) { + cairo_point_double_t nodes[4]; + for (i = 0; i < 4; ++i) { + nodes[i].x = pv[i][0][0]; + nodes[i].y = pv[i][1][0]; + } + + draw_bezier_curve (data, width, height, stride, nodes, cstart, cend); + + for (i = 0; i < 4; ++i) { + fd_fwd (pv[i][0]); + fd_fwd (pv[i][1]); + cstart[i] += dcstart[i]; + cend[i] += dcend[i]; + } + } +} + +/* + * Clip, split and rasterize a Bezier cubic patch. + * + * Input: data is the base pointer of the image + * width, height are the dimensions of the image + * stride is the stride in bytes between adjacent rows + * p[i][j], p[i][j] are the nodes of the patch + * col[i][j] is the j-th color component of the i-th corner + * + * Output: data will be changed to have the requested patch drawn in + * the specified colors + * + * The nodes of the patch are as follows: + * + * u\v 0 - > 1 + * 0 p00 p01 p02 p03 + * | p10 p11 p12 p13 + * v p20 p21 p22 p23 + * 1 p30 p31 p32 p33 + * + * i.e. u varies along the first component (rows), v varies along the + * second one (columns). + * + * The color components are red, green, blue and alpha, in this order. + * c[0..3] are the colors in p00, p30, p03, p33 respectively + * + * The input color components are not premultiplied, but the data + * stored in the image is assumed to be in CAIRO_FORMAT_ARGB32 (8 bpc, + * premultiplied). + * + * If the patch folds over itself, the part with the highest v + * parameter is considered above. If both have the same v, the one + * with the highest u parameter is above. + * + * The function guarantees that it will draw the patch with a step + * small enough to never have a distance above 1/sqrt(2) between two + * adjacent points (which guarantees that no hole can appear). + * + * This function can be used to rasterize a tile of PDF type 7 + * shadings (see http://www.adobe.com/devnet/pdf/pdf_reference.html). + */ +static void +draw_bezier_patch (unsigned char *data, int width, int height, int stride, + cairo_point_double_t p[4][4], double c[4][4]) +{ + double top, bottom, left, right, steps_sq; + int i, j, v; + + top = bottom = p[0][0].y; + for (i = 0; i < 4; ++i) { + for (j= 0; j < 4; ++j) { + top = MIN (top, p[i][j].y); + bottom = MAX (bottom, p[i][j].y); + } + } + + v = intersect_interval (top, bottom, 0, height); + if (v == OUTSIDE) + return; + + left = right = p[0][0].x; + for (i = 0; i < 4; ++i) { + for (j= 0; j < 4; ++j) { + left = MIN (left, p[i][j].x); + right = MAX (right, p[i][j].x); + } + } + + v &= intersect_interval (left, right, 0, width); + if (v == OUTSIDE) + return; + + steps_sq = 0; + for (i = 0; i < 4; ++i) + steps_sq = MAX (steps_sq, bezier_steps_sq (p[i])); + + if (steps_sq >= (v == INSIDE ? STEPS_MAX_V * STEPS_MAX_V : STEPS_CLIP_V * STEPS_CLIP_V)) { + /* The number of steps is greater than the threshold. This + * means that either the error would become too big if we + * directly rasterized it or that we can probably save some + * time by splitting the curve and clipping part of it. The + * patch is only split in the v direction to guarantee that + * rasterizing each part will overwrite parts with low v with + * overlapping parts with higher v. */ + + cairo_point_double_t first[4][4], second[4][4]; + double subc[4][4]; + + for (i = 0; i < 4; ++i) + split_bezier (p[i], first[i], second[i]); + + for (i = 0; i < 4; ++i) { + subc[0][i] = c[0][i]; + subc[1][i] = c[1][i]; + subc[2][i] = 0.5 * (c[0][i] + c[2][i]); + subc[3][i] = 0.5 * (c[1][i] + c[3][i]); + } + + draw_bezier_patch (data, width, height, stride, first, subc); + + for (i = 0; i < 4; ++i) { + subc[0][i] = subc[2][i]; + subc[1][i] = subc[3][i]; + subc[2][i] = c[2][i]; + subc[3][i] = c[3][i]; + } + draw_bezier_patch (data, width, height, stride, second, subc); + } else { + rasterize_bezier_patch (data, width, height, stride, sqsteps2shift (steps_sq), p, c); + } +} + +/* + * Draw a tensor product shading pattern. + * + * Input: mesh is the mesh pattern + * data is the base pointer of the image + * width, height are the dimensions of the image + * stride is the stride in bytes between adjacent rows + * + * Output: data will be changed to have the pattern drawn on it + * + * data is assumed to be clear and its content is assumed to be in + * CAIRO_FORMAT_ARGB32 (8 bpc, premultiplied). + * + * This function can be used to rasterize a PDF type 7 shading (see + * http://www.adobe.com/devnet/pdf/pdf_reference.html). + */ +void +_cairo_mesh_pattern_rasterize (const cairo_mesh_pattern_t *mesh, + void *data, + int width, + int height, + int stride, + double x_offset, + double y_offset) +{ + cairo_point_double_t nodes[4][4]; + double colors[4][4]; + cairo_matrix_t p2u; + unsigned int i, j, k, n; + cairo_status_t status; + const cairo_mesh_patch_t *patch; + const cairo_color_t *c; + + assert (mesh->base.status == CAIRO_STATUS_SUCCESS); + assert (mesh->current_patch == NULL); + + p2u = mesh->base.matrix; + status = cairo_matrix_invert (&p2u); + assert (status == CAIRO_STATUS_SUCCESS); + + n = _cairo_array_num_elements (&mesh->patches); + patch = _cairo_array_index_const (&mesh->patches, 0); + for (i = 0; i < n; i++) { + for (j = 0; j < 4; j++) { + for (k = 0; k < 4; k++) { + nodes[j][k] = patch->points[j][k]; + cairo_matrix_transform_point (&p2u, &nodes[j][k].x, &nodes[j][k].y); + nodes[j][k].x += x_offset; + nodes[j][k].y += y_offset; + } + } + + c = &patch->colors[0]; + colors[0][0] = c->red; + colors[0][1] = c->green; + colors[0][2] = c->blue; + colors[0][3] = c->alpha; + + c = &patch->colors[3]; + colors[1][0] = c->red; + colors[1][1] = c->green; + colors[1][2] = c->blue; + colors[1][3] = c->alpha; + + c = &patch->colors[1]; + colors[2][0] = c->red; + colors[2][1] = c->green; + colors[2][2] = c->blue; + colors[2][3] = c->alpha; + + c = &patch->colors[2]; + colors[3][0] = c->red; + colors[3][1] = c->green; + colors[3][2] = c->blue; + colors[3][3] = c->alpha; + + draw_bezier_patch (data, width, height, stride, nodes, colors); + patch++; + } +} diff --git a/local/recipes/libs/cairo/source/src/cairo-misc.c b/local/recipes/libs/cairo/source/src/cairo-misc.c new file mode 100644 index 0000000000..59cf76fc92 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-misc.c @@ -0,0 +1,1214 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2007 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Adrian Johnson + */ + +#include "cairoint.h" +#include "cairo-error-private.h" + +#include +#include +#include +#include +#ifdef HAVE_XLOCALE_H +#include +#endif +#if HAVE_FCNTL_H +#include +#endif + +COMPILE_TIME_ASSERT ((int)CAIRO_STATUS_LAST_STATUS < (int)CAIRO_INT_STATUS_UNSUPPORTED); +COMPILE_TIME_ASSERT (CAIRO_INT_STATUS_LAST_STATUS <= 127); + +/** + * SECTION:cairo-status + * @Title: Error handling + * @Short_Description: Decoding cairo's status + * @See_Also: cairo_status(), cairo_surface_status(), cairo_pattern_status(), + * cairo_font_face_status(), cairo_scaled_font_status(), + * cairo_region_status() + * + * Cairo uses a single status type to represent all kinds of errors. A status + * value of %CAIRO_STATUS_SUCCESS represents no error and has an integer value + * of zero. All other status values represent an error. + * + * Cairo's error handling is designed to be easy to use and safe. All major + * cairo objects retain an error status internally which + * can be queried anytime by the users using cairo*_status() calls. In + * the mean time, it is safe to call all cairo functions normally even if the + * underlying object is in an error status. This means that no error handling + * code is required before or after each individual cairo function call. + **/ + +/* Public stuff */ + +/** + * cairo_status_to_string: + * @status: a cairo status + * + * Provides a human-readable description of a #cairo_status_t. + * + * Returns: a string representation of the status + * + * Since: 1.0 + **/ +const char * +cairo_status_to_string (cairo_status_t status) +{ + switch (status) { + case CAIRO_STATUS_SUCCESS: + return "no error has occurred"; + case CAIRO_STATUS_NO_MEMORY: + return "out of memory"; + case CAIRO_STATUS_INVALID_RESTORE: + return "cairo_restore() without matching cairo_save()"; + case CAIRO_STATUS_INVALID_POP_GROUP: + return "no saved group to pop, i.e. cairo_pop_group() without matching cairo_push_group()"; + case CAIRO_STATUS_NO_CURRENT_POINT: + return "no current point defined"; + case CAIRO_STATUS_INVALID_MATRIX: + return "invalid matrix (not invertible)"; + case CAIRO_STATUS_INVALID_STATUS: + return "invalid value for an input cairo_status_t"; + case CAIRO_STATUS_NULL_POINTER: + return "NULL pointer"; + case CAIRO_STATUS_INVALID_STRING: + return "input string not valid UTF-8"; + case CAIRO_STATUS_INVALID_PATH_DATA: + return "input path data not valid"; + case CAIRO_STATUS_READ_ERROR: + return "error while reading from input stream"; + case CAIRO_STATUS_WRITE_ERROR: + return "error while writing to output stream"; + case CAIRO_STATUS_SURFACE_FINISHED: + return "the target surface has been finished"; + case CAIRO_STATUS_SURFACE_TYPE_MISMATCH: + return "the surface type is not appropriate for the operation"; + case CAIRO_STATUS_PATTERN_TYPE_MISMATCH: + return "the pattern type is not appropriate for the operation"; + case CAIRO_STATUS_INVALID_CONTENT: + return "invalid value for an input cairo_content_t"; + case CAIRO_STATUS_INVALID_FORMAT: + return "invalid value for an input cairo_format_t"; + case CAIRO_STATUS_INVALID_VISUAL: + return "invalid value for an input Visual*"; + case CAIRO_STATUS_FILE_NOT_FOUND: + return "file not found"; + case CAIRO_STATUS_INVALID_DASH: + return "invalid value for a dash setting"; + case CAIRO_STATUS_INVALID_DSC_COMMENT: + return "invalid value for a DSC comment"; + case CAIRO_STATUS_INVALID_INDEX: + return "invalid index passed to getter"; + case CAIRO_STATUS_CLIP_NOT_REPRESENTABLE: + return "clip region not representable in desired format"; + case CAIRO_STATUS_TEMP_FILE_ERROR: + return "error creating or writing to a temporary file"; + case CAIRO_STATUS_INVALID_STRIDE: + return "invalid value for stride"; + case CAIRO_STATUS_FONT_TYPE_MISMATCH: + return "the font type is not appropriate for the operation"; + case CAIRO_STATUS_USER_FONT_IMMUTABLE: + return "the user-font is immutable"; + case CAIRO_STATUS_USER_FONT_ERROR: + return "error occurred in a user-font callback function"; + case CAIRO_STATUS_NEGATIVE_COUNT: + return "negative number used where it is not allowed"; + case CAIRO_STATUS_INVALID_CLUSTERS: + return "input clusters do not represent the accompanying text and glyph arrays"; + case CAIRO_STATUS_INVALID_SLANT: + return "invalid value for an input cairo_font_slant_t"; + case CAIRO_STATUS_INVALID_WEIGHT: + return "invalid value for an input cairo_font_weight_t"; + case CAIRO_STATUS_INVALID_SIZE: + return "invalid value (typically too big) for the size of the input (surface, pattern, etc.)"; + case CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED: + return "user-font method not implemented"; + case CAIRO_STATUS_DEVICE_TYPE_MISMATCH: + return "the device type is not appropriate for the operation"; + case CAIRO_STATUS_DEVICE_ERROR: + return "an operation to the device caused an unspecified error"; + case CAIRO_STATUS_INVALID_MESH_CONSTRUCTION: + return "invalid operation during mesh pattern construction"; + case CAIRO_STATUS_DEVICE_FINISHED: + return "the target device has been finished"; + case CAIRO_STATUS_JBIG2_GLOBAL_MISSING: + return "CAIRO_MIME_TYPE_JBIG2_GLOBAL_ID used but no CAIRO_MIME_TYPE_JBIG2_GLOBAL data provided"; + case CAIRO_STATUS_PNG_ERROR: + return "error occurred in libpng while reading from or writing to a PNG file"; + case CAIRO_STATUS_FREETYPE_ERROR: + return "error occurred in libfreetype"; + case CAIRO_STATUS_WIN32_GDI_ERROR: + return "error occurred in the Windows Graphics Device Interface"; + case CAIRO_STATUS_TAG_ERROR: + return "invalid tag name, attributes, or nesting"; + case CAIRO_STATUS_DWRITE_ERROR: + return "Window Direct Write error"; + case CAIRO_STATUS_SVG_FONT_ERROR: + return "error occured while rendering an OpenType-SVG font"; + default: + case CAIRO_STATUS_LAST_STATUS: + return ""; + } +} + +/** + * cairo_glyph_allocate: + * @num_glyphs: number of glyphs to allocate + * + * Allocates an array of #cairo_glyph_t's. + * This function is only useful in implementations of + * #cairo_user_scaled_font_text_to_glyphs_func_t where the user + * needs to allocate an array of glyphs that cairo will free. + * For all other uses, user can use their own allocation method + * for glyphs. + * + * This function returns %NULL if @num_glyphs is not positive, + * or if out of memory. That means, the %NULL return value + * signals out-of-memory only if @num_glyphs was positive. + * + * Returns: the newly allocated array of glyphs that should be + * freed using cairo_glyph_free() + * + * Since: 1.8 + **/ +cairo_glyph_t * +cairo_glyph_allocate (int num_glyphs) +{ + if (num_glyphs <= 0) + return NULL; + + return _cairo_malloc_ab (num_glyphs, sizeof (cairo_glyph_t)); +} + +/** + * cairo_glyph_free: + * @glyphs: array of glyphs to free, or %NULL + * + * Frees an array of #cairo_glyph_t's allocated using cairo_glyph_allocate(). + * This function is only useful to free glyph array returned + * by cairo_scaled_font_text_to_glyphs() where cairo returns + * an array of glyphs that the user will free. + * For all other uses, user can use their own allocation method + * for glyphs. + * + * Since: 1.8 + **/ +void +cairo_glyph_free (cairo_glyph_t *glyphs) +{ + free (glyphs); +} + +/** + * cairo_text_cluster_allocate: + * @num_clusters: number of text_clusters to allocate + * + * Allocates an array of #cairo_text_cluster_t's. + * This function is only useful in implementations of + * #cairo_user_scaled_font_text_to_glyphs_func_t where the user + * needs to allocate an array of text clusters that cairo will free. + * For all other uses, user can use their own allocation method + * for text clusters. + * + * This function returns %NULL if @num_clusters is not positive, + * or if out of memory. That means, the %NULL return value + * signals out-of-memory only if @num_clusters was positive. + * + * Returns: the newly allocated array of text clusters that should be + * freed using cairo_text_cluster_free() + * + * Since: 1.8 + **/ +cairo_text_cluster_t * +cairo_text_cluster_allocate (int num_clusters) +{ + if (num_clusters <= 0) + return NULL; + + return _cairo_malloc_ab (num_clusters, sizeof (cairo_text_cluster_t)); +} + +/** + * cairo_text_cluster_free: + * @clusters: array of text clusters to free, or %NULL + * + * Frees an array of #cairo_text_cluster's allocated using cairo_text_cluster_allocate(). + * This function is only useful to free text cluster array returned + * by cairo_scaled_font_text_to_glyphs() where cairo returns + * an array of text clusters that the user will free. + * For all other uses, user can use their own allocation method + * for text clusters. + * + * Since: 1.8 + **/ +void +cairo_text_cluster_free (cairo_text_cluster_t *clusters) +{ + free (clusters); +} + +/* Private stuff */ + +/** + * _cairo_validate_text_clusters: + * @utf8: UTF-8 text + * @utf8_len: length of @utf8 in bytes + * @glyphs: array of glyphs + * @num_glyphs: number of glyphs + * @clusters: array of cluster mapping information + * @num_clusters: number of clusters in the mapping + * @cluster_flags: cluster flags + * + * Check that clusters cover the entire glyphs and utf8 arrays, + * and that cluster boundaries are UTF-8 boundaries. + * + * Return value: %CAIRO_STATUS_SUCCESS upon success, or + * %CAIRO_STATUS_INVALID_CLUSTERS on error. + * The error is either invalid UTF-8 input, + * or bad cluster mapping. + **/ +cairo_status_t +_cairo_validate_text_clusters (const char *utf8, + int utf8_len, + const cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags) +{ + cairo_status_t status; + unsigned int n_bytes = 0; + unsigned int n_glyphs = 0; + int i; + + for (i = 0; i < num_clusters; i++) { + int cluster_bytes = clusters[i].num_bytes; + int cluster_glyphs = clusters[i].num_glyphs; + + if (cluster_bytes < 0 || cluster_glyphs < 0) + goto BAD; + + /* A cluster should cover at least one character or glyph. + * I can't see any use for a 0,0 cluster. + * I can't see an immediate use for a zero-text cluster + * right now either, but they don't harm. + * Zero-glyph clusters on the other hand are useful for + * things like U+200C ZERO WIDTH NON-JOINER */ + if (cluster_bytes == 0 && cluster_glyphs == 0) + goto BAD; + + /* Since n_bytes and n_glyphs are unsigned, but the rest of + * values involved are signed, we can detect overflow easily */ + if (n_bytes+cluster_bytes > (unsigned int)utf8_len || n_glyphs+cluster_glyphs > (unsigned int)num_glyphs) + goto BAD; + + /* Make sure we've got valid UTF-8 for the cluster */ + status = _cairo_utf8_to_ucs4 (utf8+n_bytes, cluster_bytes, NULL, NULL); + if (unlikely (status)) + return _cairo_error (CAIRO_STATUS_INVALID_CLUSTERS); + + n_bytes += cluster_bytes ; + n_glyphs += cluster_glyphs; + } + + if (n_bytes != (unsigned int) utf8_len || n_glyphs != (unsigned int) num_glyphs) { + BAD: + return _cairo_error (CAIRO_STATUS_INVALID_CLUSTERS); + } + + return CAIRO_STATUS_SUCCESS; +} + +/** + * _cairo_operator_bounded_by_mask: + * @op: a #cairo_operator_t + * + * A bounded operator is one where mask pixel + * of zero results in no effect on the destination image. + * + * Unbounded operators often require special handling; if you, for + * example, draw trapezoids with an unbounded operator, the effect + * extends past the bounding box of the trapezoids. + * + * Return value: %TRUE if the operator is bounded by the mask operand + **/ +cairo_bool_t +_cairo_operator_bounded_by_mask (cairo_operator_t op) +{ + switch (op) { + case CAIRO_OPERATOR_CLEAR: + case CAIRO_OPERATOR_SOURCE: + case CAIRO_OPERATOR_OVER: + case CAIRO_OPERATOR_ATOP: + case CAIRO_OPERATOR_DEST: + case CAIRO_OPERATOR_DEST_OVER: + case CAIRO_OPERATOR_DEST_OUT: + case CAIRO_OPERATOR_XOR: + case CAIRO_OPERATOR_ADD: + case CAIRO_OPERATOR_SATURATE: + case CAIRO_OPERATOR_MULTIPLY: + case CAIRO_OPERATOR_SCREEN: + case CAIRO_OPERATOR_OVERLAY: + case CAIRO_OPERATOR_DARKEN: + case CAIRO_OPERATOR_LIGHTEN: + case CAIRO_OPERATOR_COLOR_DODGE: + case CAIRO_OPERATOR_COLOR_BURN: + case CAIRO_OPERATOR_HARD_LIGHT: + case CAIRO_OPERATOR_SOFT_LIGHT: + case CAIRO_OPERATOR_DIFFERENCE: + case CAIRO_OPERATOR_EXCLUSION: + case CAIRO_OPERATOR_HSL_HUE: + case CAIRO_OPERATOR_HSL_SATURATION: + case CAIRO_OPERATOR_HSL_COLOR: + case CAIRO_OPERATOR_HSL_LUMINOSITY: + return TRUE; + case CAIRO_OPERATOR_OUT: + case CAIRO_OPERATOR_IN: + case CAIRO_OPERATOR_DEST_IN: + case CAIRO_OPERATOR_DEST_ATOP: + return FALSE; + default: + ASSERT_NOT_REACHED; + return FALSE; /* squelch warning */ + } +} + +/** + * _cairo_operator_bounded_by_source: + * @op: a #cairo_operator_t + * + * A bounded operator is one where source pixels of zero + * (in all four components, r, g, b and a) effect no change + * in the resulting destination image. + * + * Unbounded operators often require special handling; if you, for + * example, copy a surface with the SOURCE operator, the effect + * extends past the bounding box of the source surface. + * + * Return value: %TRUE if the operator is bounded by the source operand + **/ +cairo_bool_t +_cairo_operator_bounded_by_source (cairo_operator_t op) +{ + switch (op) { + case CAIRO_OPERATOR_OVER: + case CAIRO_OPERATOR_ATOP: + case CAIRO_OPERATOR_DEST: + case CAIRO_OPERATOR_DEST_OVER: + case CAIRO_OPERATOR_DEST_OUT: + case CAIRO_OPERATOR_XOR: + case CAIRO_OPERATOR_ADD: + case CAIRO_OPERATOR_SATURATE: + case CAIRO_OPERATOR_MULTIPLY: + case CAIRO_OPERATOR_SCREEN: + case CAIRO_OPERATOR_OVERLAY: + case CAIRO_OPERATOR_DARKEN: + case CAIRO_OPERATOR_LIGHTEN: + case CAIRO_OPERATOR_COLOR_DODGE: + case CAIRO_OPERATOR_COLOR_BURN: + case CAIRO_OPERATOR_HARD_LIGHT: + case CAIRO_OPERATOR_SOFT_LIGHT: + case CAIRO_OPERATOR_DIFFERENCE: + case CAIRO_OPERATOR_EXCLUSION: + case CAIRO_OPERATOR_HSL_HUE: + case CAIRO_OPERATOR_HSL_SATURATION: + case CAIRO_OPERATOR_HSL_COLOR: + case CAIRO_OPERATOR_HSL_LUMINOSITY: + return TRUE; + case CAIRO_OPERATOR_CLEAR: + case CAIRO_OPERATOR_SOURCE: + case CAIRO_OPERATOR_OUT: + case CAIRO_OPERATOR_IN: + case CAIRO_OPERATOR_DEST_IN: + case CAIRO_OPERATOR_DEST_ATOP: + return FALSE; + default: + ASSERT_NOT_REACHED; + return FALSE; /* squelch warning */ + } +} + +uint32_t +_cairo_operator_bounded_by_either (cairo_operator_t op) +{ + switch (op) { + case CAIRO_OPERATOR_OVER: + case CAIRO_OPERATOR_ATOP: + case CAIRO_OPERATOR_DEST: + case CAIRO_OPERATOR_DEST_OVER: + case CAIRO_OPERATOR_DEST_OUT: + case CAIRO_OPERATOR_XOR: + case CAIRO_OPERATOR_ADD: + case CAIRO_OPERATOR_SATURATE: + case CAIRO_OPERATOR_MULTIPLY: + case CAIRO_OPERATOR_SCREEN: + case CAIRO_OPERATOR_OVERLAY: + case CAIRO_OPERATOR_DARKEN: + case CAIRO_OPERATOR_LIGHTEN: + case CAIRO_OPERATOR_COLOR_DODGE: + case CAIRO_OPERATOR_COLOR_BURN: + case CAIRO_OPERATOR_HARD_LIGHT: + case CAIRO_OPERATOR_SOFT_LIGHT: + case CAIRO_OPERATOR_DIFFERENCE: + case CAIRO_OPERATOR_EXCLUSION: + case CAIRO_OPERATOR_HSL_HUE: + case CAIRO_OPERATOR_HSL_SATURATION: + case CAIRO_OPERATOR_HSL_COLOR: + case CAIRO_OPERATOR_HSL_LUMINOSITY: + return CAIRO_OPERATOR_BOUND_BY_MASK | CAIRO_OPERATOR_BOUND_BY_SOURCE; + case CAIRO_OPERATOR_CLEAR: + case CAIRO_OPERATOR_SOURCE: + return CAIRO_OPERATOR_BOUND_BY_MASK; + case CAIRO_OPERATOR_OUT: + case CAIRO_OPERATOR_IN: + case CAIRO_OPERATOR_DEST_IN: + case CAIRO_OPERATOR_DEST_ATOP: + return 0; + default: + ASSERT_NOT_REACHED; + return FALSE; /* squelch warning */ + } + +} + +#if DISABLE_SOME_FLOATING_POINT +/* This function is identical to the C99 function lround(), except that it + * performs arithmetic rounding (floor(d + .5) instead of away-from-zero rounding) and + * has a valid input range of (INT_MIN, INT_MAX] instead of + * [INT_MIN, INT_MAX]. It is much faster on both x86 and FPU-less systems + * than other commonly used methods for rounding (lround, round, rint, lrint + * or float (d + 0.5)). + * + * The reason why this function is much faster on x86 than other + * methods is due to the fact that it avoids the fldcw instruction. + * This instruction incurs a large performance penalty on modern Intel + * processors due to how it prevents efficient instruction pipelining. + * + * The reason why this function is much faster on FPU-less systems is for + * an entirely different reason. All common rounding methods involve multiple + * floating-point operations. Each one of these operations has to be + * emulated in software, which adds up to be a large performance penalty. + * This function doesn't perform any floating-point calculations, and thus + * avoids this penalty. + */ +int +_cairo_lround (double d) +{ + uint32_t top, shift_amount, output; + union { + double d; + uint64_t ui64; + uint32_t ui32[2]; + } u; + + u.d = d; + + /* If the integer word order doesn't match the float word order, we swap + * the words of the input double. This is needed because we will be + * treating the whole double as a 64-bit unsigned integer. Notice that we + * use WORDS_BIGENDIAN to detect the integer word order, which isn't + * exactly correct because WORDS_BIGENDIAN refers to byte order, not word + * order. Thus, we are making the assumption that the byte order is the + * same as the integer word order which, on the modern machines that we + * care about, is OK. + */ +#if ( defined(FLOAT_WORDS_BIGENDIAN) && !defined(WORDS_BIGENDIAN)) || \ + (!defined(FLOAT_WORDS_BIGENDIAN) && defined(WORDS_BIGENDIAN)) + { + uint32_t temp = u.ui32[0]; + u.ui32[0] = u.ui32[1]; + u.ui32[1] = temp; + } +#endif + +#ifdef WORDS_BIGENDIAN + #define MSW (0) /* Most Significant Word */ + #define LSW (1) /* Least Significant Word */ +#else + #define MSW (1) + #define LSW (0) +#endif + + /* By shifting the most significant word of the input double to the + * right 20 places, we get the very "top" of the double where the exponent + * and sign bit lie. + */ + top = u.ui32[MSW] >> 20; + + /* Here, we calculate how much we have to shift the mantissa to normalize + * it to an integer value. We extract the exponent "top" by masking out the + * sign bit, then we calculate the shift amount by subtracting the exponent + * from the bias. Notice that the correct bias for 64-bit doubles is + * actually 1075, but we use 1053 instead for two reasons: + * + * 1) To perform rounding later on, we will first need the target + * value in a 31.1 fixed-point format. Thus, the bias needs to be one + * less: (1075 - 1: 1074). + * + * 2) To avoid shifting the mantissa as a full 64-bit integer (which is + * costly on certain architectures), we break the shift into two parts. + * First, the upper and lower parts of the mantissa are shifted + * individually by a constant amount that all valid inputs will require + * at the very least. This amount is chosen to be 21, because this will + * allow the two parts of the mantissa to later be combined into a + * single 32-bit representation, on which the remainder of the shift + * will be performed. Thus, we decrease the bias by an additional 21: + * (1074 - 21: 1053). + */ + shift_amount = 1053 - (top & 0x7FF); + + /* We are done with the exponent portion in "top", so here we shift it off + * the end. + */ + top >>= 11; + + /* Before we perform any operations on the mantissa, we need to OR in + * the implicit 1 at the top (see the IEEE-754 spec). We needn't mask + * off the sign bit nor the exponent bits because these higher bits won't + * make a bit of difference in the rest of our calculations. + */ + u.ui32[MSW] |= 0x100000; + + /* If the input double is negative, we have to decrease the mantissa + * by a hair. This is an important part of performing arithmetic rounding, + * as negative numbers must round towards positive infinity in the + * halfwase case of -x.5. Since "top" contains only the sign bit at this + * point, we can just decrease the mantissa by the value of "top". + */ + u.ui64 -= top; + + /* By decrementing "top", we create a bitmask with a value of either + * 0x0 (if the input was negative) or 0xFFFFFFFF (if the input was positive + * and thus the unsigned subtraction underflowed) that we'll use later. + */ + top--; + + /* Here, we shift the mantissa by the constant value as described above. + * We can emulate a 64-bit shift right by 21 through shifting the top 32 + * bits left 11 places and ORing in the bottom 32 bits shifted 21 places + * to the right. Both parts of the mantissa are now packed into a single + * 32-bit integer. Although we severely truncate the lower part in the + * process, we still have enough significant bits to perform the conversion + * without error (for all valid inputs). + */ + output = (u.ui32[MSW] << 11) | (u.ui32[LSW] >> 21); + + /* Next, we perform the shift that converts the X.Y fixed-point number + * currently found in "output" to the desired 31.1 fixed-point format + * needed for the following rounding step. It is important to consider + * all possible values for "shift_amount" at this point: + * + * - {shift_amount < 0} Since shift_amount is an unsigned integer, it + * really can't have a value less than zero. But, if the shift_amount + * calculation above caused underflow (which would happen with + * input > INT_MAX or input <= INT_MIN) then shift_amount will now be + * a very large number, and so this shift will result in complete + * garbage. But that's OK, as the input was out of our range, so our + * output is undefined. + * + * - {shift_amount > 31} If the magnitude of the input was very small + * (i.e. |input| << 1.0), shift_amount will have a value greater than + * 31. Thus, this shift will also result in garbage. After performing + * the shift, we will zero-out "output" if this is the case. + * + * - {0 <= shift_amount < 32} In this case, the shift will properly convert + * the mantissa into a 31.1 fixed-point number. + */ + output >>= shift_amount; + + /* This is where we perform rounding with the 31.1 fixed-point number. + * Since what we're after is arithmetic rounding, we simply add the single + * fractional bit into the integer part of "output", and just keep the + * integer part. + */ + output = (output >> 1) + (output & 1); + + /* Here, we zero-out the result if the magnitude if the input was very small + * (as explained in the section above). Notice that all input out of the + * valid range is also caught by this condition, which means we produce 0 + * for all invalid input, which is a nice side effect. + * + * The most straightforward way to do this would be: + * + * if (shift_amount > 31) + * output = 0; + * + * But we can use a little trick to avoid the potential branch. The + * expression (shift_amount > 31) will be either 1 or 0, which when + * decremented will be either 0x0 or 0xFFFFFFFF (unsigned underflow), + * which can be used to conditionally mask away all the bits in "output" + * (in the 0x0 case), effectively zeroing it out. Certain, compilers would + * have done this for us automatically. + */ + output &= ((shift_amount > 31) - 1); + + /* If the input double was a negative number, then we have to negate our + * output. The most straightforward way to do this would be: + * + * if (!top) + * output = -output; + * + * as "top" at this point is either 0x0 (if the input was negative) or + * 0xFFFFFFFF (if the input was positive). But, we can use a trick to + * avoid the branch. Observe that the following snippet of code has the + * same effect as the reference snippet above: + * + * if (!top) + * output = 0 - output; + * else + * output = output - 0; + * + * Armed with the bitmask found in "top", we can condense the two statements + * into the following: + * + * output = (output & top) - (output & ~top); + * + * where, in the case that the input double was negative, "top" will be 0, + * and the statement will be equivalent to: + * + * output = (0) - (output); + * + * and if the input double was positive, "top" will be 0xFFFFFFFF, and the + * statement will be equivalent to: + * + * output = (output) - (0); + * + * Which, as pointed out earlier, is equivalent to the original reference + * snippet. + */ + output = (output & top) - (output & ~top); + + return output; +#undef MSW +#undef LSW +} +#endif + +/* Convert a 32-bit IEEE single precision floating point number to a + * 'half' representation (s10.5) + */ +uint16_t +_cairo_half_from_float (float f) +{ + union { + uint32_t ui; + float f; + } u; + int s, e, m; + + u.f = f; + s = (u.ui >> 16) & 0x00008000; + e = ((u.ui >> 23) & 0x000000ff) - (127 - 15); + m = u.ui & 0x007fffff; + if (e <= 0) { + if (e < -10) { + /* underflow */ + return 0; + } + + m = (m | 0x00800000) >> (1 - e); + + /* round to nearest, round 0.5 up. */ + if (m & 0x00001000) + m += 0x00002000; + return s | (m >> 13); + } else if (e == 0xff - (127 - 15)) { + if (m == 0) { + /* infinity */ + return s | 0x7c00; + } else { + /* nan */ + m >>= 13; + return s | 0x7c00 | m | (m == 0); + } + } else { + /* round to nearest, round 0.5 up. */ + if (m & 0x00001000) { + m += 0x00002000; + + if (m & 0x00800000) { + m = 0; + e += 1; + } + } + + if (e > 30) { + /* overflow -> infinity */ + return s | 0x7c00; + } + + return s | (e << 10) | (m >> 13); + } +} + +#ifndef __BIONIC__ +# include + +const char * +_cairo_get_locale_decimal_point (void) +{ + struct lconv *locale_data = localeconv (); + return locale_data->decimal_point; +} + +#else +/* Android's Bionic libc doesn't provide decimal_point */ +const char * +_cairo_get_locale_decimal_point (void) +{ + return "."; +} +#endif + +#if defined (HAVE_NEWLOCALE) && defined (HAVE_STRTOD_L) + +static locale_t C_locale; + +static locale_t +get_C_locale (void) +{ + locale_t C; + +retry: + C = (locale_t) _cairo_atomic_ptr_get ((cairo_atomic_intptr_t *) &C_locale); + + if (unlikely (!C)) { + C = newlocale (LC_ALL_MASK, "C", NULL); + + if (!_cairo_atomic_ptr_cmpxchg ((cairo_atomic_intptr_t *) &C_locale, NULL, C)) { + freelocale (C_locale); + goto retry; + } + } + + return C; +} + +double +_cairo_strtod (const char *nptr, char **endptr) +{ + return strtod_l (nptr, endptr, get_C_locale ()); +} + +#else + +/* strtod replacement that ignores locale and only accepts decimal points */ +double +_cairo_strtod (const char *nptr, char **endptr) +{ + const char *decimal_point; + int decimal_point_len; + const char *p; + char buf[100]; + char *bufptr; + char *bufend = buf + sizeof(buf) - 1; + double value; + char *end; + int delta; + cairo_bool_t have_dp; + + decimal_point = _cairo_get_locale_decimal_point (); + decimal_point_len = strlen (decimal_point); + assert (decimal_point_len != 0); + + p = nptr; + bufptr = buf; + delta = 0; + have_dp = FALSE; + while (*p && _cairo_isspace (*p)) { + p++; + delta++; + } + + while (*p && (bufptr + decimal_point_len < bufend)) { + if (_cairo_isdigit (*p)) { + *bufptr++ = *p; + } else if (*p == '.') { + if (have_dp) + break; + strncpy (bufptr, decimal_point, decimal_point_len); + bufptr += decimal_point_len; + delta -= decimal_point_len - 1; + have_dp = TRUE; + } else if (bufptr == buf && (*p == '-' || *p == '+')) { + *bufptr++ = *p; + } else { + break; + } + p++; + } + *bufptr = 0; + + value = strtod (buf, &end); + if (endptr) { + if (end == buf) + *endptr = (char*)(nptr); + else + *endptr = (char*)(nptr + (end - buf) + delta); + } + + return value; +} +#endif + +#ifndef HAVE_STRNDUP +char * +_cairo_strndup (const char *s, size_t n) +{ + const char *end; + size_t len; + char *sdup; + + if (s == NULL) + return NULL; + + end = memchr (s, 0, n); + if (end) + len = end - s; + else + len = n; + + sdup = (char *) _cairo_malloc (len + 1); + if (sdup != NULL) { + memcpy (sdup, s, len); + sdup[len] = '\0'; + } + + return sdup; +} +#endif + +/** + * _cairo_fopen: + * @filename: filename to open + * @mode: mode string with which to open the file + * @file_out: reference to file handle + * + * Exactly like the C library function, but possibly doing encoding + * conversion on the filename. On all platforms, the filename is + * passed directly to the system, but on Windows, the filename is + * interpreted as UTF-8, rather than in a codepage that would depend + * on system settings. + * + * Return value: CAIRO_STATUS_SUCCESS when the filename was converted + * successfully to the native encoding, or the error reported by + * _cairo_utf8_to_utf16 otherwise. To check if the file handle could + * be obtained, dereference file_out and compare its value against + * NULL + **/ +cairo_status_t +_cairo_fopen (const char *filename, const char *mode, FILE **file_out) +{ + FILE *result; +#ifdef _WIN32 /* also defined on x86_64 */ + uint16_t *filename_w; + uint16_t *mode_w; + cairo_status_t status; + + *file_out = NULL; + + if (filename == NULL || mode == NULL) { + errno = EINVAL; + return CAIRO_STATUS_SUCCESS; + } + + if ((status = _cairo_utf8_to_utf16 (filename, -1, &filename_w, NULL)) != CAIRO_STATUS_SUCCESS) { + errno = EINVAL; + return status; + } + + if ((status = _cairo_utf8_to_utf16 (mode, -1, &mode_w, NULL)) != CAIRO_STATUS_SUCCESS) { + free (filename_w); + errno = EINVAL; + return status; + } + + result = _wfopen (filename_w, mode_w); + + free (filename_w); + free (mode_w); + +#else /* Use fopen directly */ + +#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7) + /* Glibc 2.7 supports the "e" mode flag that opens the file with O_CLOEXEC. + * this avoid the race condition in the fcntl fallback below. */ + + char new_mode[20]; + snprintf (new_mode, sizeof (new_mode), "%s%s", mode, "e"); + result = fopen (filename, new_mode); + +#else /* fopen "e" not available */ + + result = fopen (filename, mode); + +#if defined(HAVE_FCNTL_H) && defined(FD_CLOEXEC) + /* Manually set CLOEXEC */ + if (result != NULL) { + int fd = fileno (result); + if (fd != -1) { + int flags = fcntl (fd, F_GETFD); + if (flags >= 0) + flags = fcntl (fd, F_SETFD, flags | FD_CLOEXEC); + } + } +#endif /* defined(HAVE_FCNTL_H) && defined(FD_CLOEXEC) */ + +#endif /* fopen "e" not available */ + +#endif /* !_WIN32 */ + + *file_out = result; + + return CAIRO_STATUS_SUCCESS; +} + +#ifdef _WIN32 +#include +#include + +/* tmpfile() replacement for Windows. + * + * On Windows tmpfile() creates the file in the root directory. This + * may fail due to insufficient privileges. + */ +static FILE * +_cairo_win32_tmpfile (void) +{ + DWORD path_len; + WCHAR path_name[MAX_PATH + 1]; + WCHAR file_name[MAX_PATH + 1]; + HANDLE handle; + int fd; + FILE *fp; + + path_len = GetTempPathW (MAX_PATH, path_name); + if (path_len <= 0 || path_len >= MAX_PATH) + return NULL; + + if (GetTempFileNameW (path_name, L"cairo_", 0, file_name) == 0) + return NULL; + + handle = CreateFileW (file_name, + GENERIC_READ | GENERIC_WRITE, + 0, + NULL, + CREATE_ALWAYS, + FILE_ATTRIBUTE_NORMAL | FILE_FLAG_DELETE_ON_CLOSE, + NULL); + if (handle == INVALID_HANDLE_VALUE) { + DeleteFileW (file_name); + return NULL; + } + + fd = _open_osfhandle((intptr_t) handle, 0); + if (fd < 0) { + CloseHandle (handle); + return NULL; + } + + fp = fdopen(fd, "w+b"); + if (fp == NULL) { + _close(fd); + return NULL; + } + + return fp; +} +#endif /* _WIN32 */ + +/** + * _cairo_tmpfile: + * + * Exactly like the C library function. On platforms that support + * O_CLOEXEC, the file will be opened with this flag. On Windows, the + * file is opened in the temp directory instead of the root directory. + * + * Return value: a file handle or NULL on error. + **/ +FILE * +_cairo_tmpfile (void) +{ +#ifdef _WIN32 + return _cairo_win32_tmpfile (); +#else /* !_WIN32 */ + int fd; + FILE *file; + int flags; + +#ifdef O_TMPFILE + fd = open(P_tmpdir, + O_TMPFILE | O_EXCL | O_RDWR | O_NOATIME | O_CLOEXEC, + 0600); + if (fd == -1 && errno == ENOENT) { + fd = open("/tmp", + O_TMPFILE | O_EXCL | O_RDWR | O_NOATIME | O_CLOEXEC, + 0600); + } + if (fd != -1) + return fdopen (fd, "wb+"); + + /* Fallback */ +#endif /* O_TMPFILE */ + + file = tmpfile(); + +#if defined(HAVE_FCNTL_H) && defined(FD_CLOEXEC) + /* Manually set CLOEXEC */ + if (file != NULL) { + fd = fileno(file); + if (fd != -1) { + flags = fcntl(fd, F_GETFD); + if (flags >= 0 && !(flags & FD_CLOEXEC)) + fcntl(fd, F_SETFD, flags | FD_CLOEXEC); + } + } +#endif /* defined(HAVE_FCNTL_H) && defined(FD_CLOEXEC) */ + + return file; +#endif /* !_WIN32 */ +} + +typedef struct _cairo_intern_string { + cairo_hash_entry_t hash_entry; + int len; + char *string; +} cairo_intern_string_t; + +static cairo_hash_table_t *_cairo_intern_string_ht; + +unsigned long +_cairo_string_hash (const char *str, int len) +{ + const signed char *p = (const signed char *) str; + unsigned int h = *p; + + for (p += 1; len > 0; len--, p++) + h = (h << 5) - h + *p; + + return h; +} + +static cairo_bool_t +_intern_string_equal (const void *_a, const void *_b) +{ + const cairo_intern_string_t *a = _a; + const cairo_intern_string_t *b = _b; + + if (a->len != b->len) + return FALSE; + + return memcmp (a->string, b->string, a->len) == 0; +} + +cairo_status_t +_cairo_intern_string (const char **str_inout, int len) +{ + char *str = (char *) *str_inout; + cairo_intern_string_t tmpl, *istring; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + if (CAIRO_INJECT_FAULT ()) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (len < 0) + len = strlen (str); + tmpl.hash_entry.hash = _cairo_string_hash (str, len); + tmpl.len = len; + tmpl.string = (char *) str; + + CAIRO_MUTEX_LOCK (_cairo_intern_string_mutex); + if (_cairo_intern_string_ht == NULL) { + _cairo_intern_string_ht = _cairo_hash_table_create (_intern_string_equal); + if (unlikely (_cairo_intern_string_ht == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL; + } + } + + istring = _cairo_hash_table_lookup (_cairo_intern_string_ht, + &tmpl.hash_entry); + if (istring == NULL) { + istring = _cairo_malloc (sizeof (cairo_intern_string_t) + len + 1); + if (likely (istring != NULL)) { + istring->hash_entry.hash = tmpl.hash_entry.hash; + istring->len = tmpl.len; + istring->string = (char *) (istring + 1); + memcpy (istring->string, str, len); + istring->string[len] = '\0'; + + status = _cairo_hash_table_insert (_cairo_intern_string_ht, + &istring->hash_entry); + if (unlikely (status)) { + free (istring); + goto BAIL; + } + } else { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL; + } + } + + *str_inout = istring->string; + + BAIL: + CAIRO_MUTEX_UNLOCK (_cairo_intern_string_mutex); + return status; +} + +static void +_intern_string_pluck (void *entry, void *closure) +{ + _cairo_hash_table_remove (closure, entry); + free (entry); +} + +void +_cairo_intern_string_reset_static_data (void) +{ + CAIRO_MUTEX_LOCK (_cairo_intern_string_mutex); + if (_cairo_intern_string_ht != NULL) { + _cairo_hash_table_foreach (_cairo_intern_string_ht, + _intern_string_pluck, + _cairo_intern_string_ht); + _cairo_hash_table_destroy(_cairo_intern_string_ht); + _cairo_intern_string_ht = NULL; + } + CAIRO_MUTEX_UNLOCK (_cairo_intern_string_mutex); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-mono-scan-converter.c b/local/recipes/libs/cairo/source/src/cairo-mono-scan-converter.c new file mode 100644 index 0000000000..e7c8ddb1ef --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-mono-scan-converter.c @@ -0,0 +1,587 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* + * Copyright (c) 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "cairoint.h" +#include "cairo-spans-private.h" +#include "cairo-error-private.h" + +#include +#include +#include + +struct quorem { + int32_t quo; + int32_t rem; +}; + +struct edge { + struct edge *next, *prev; + + int32_t height_left; + int32_t dir; + int32_t vertical; + + int32_t dy; + struct quorem x; + struct quorem dxdy; +}; + +/* A collection of sorted and vertically clipped edges of the polygon. + * Edges are moved from the polygon to an active list while scan + * converting. */ +struct polygon { + /* The vertical clip extents. */ + int32_t ymin, ymax; + + int num_edges; + struct edge *edges; + + /* Array of edges all starting in the same bucket. An edge is put + * into bucket EDGE_BUCKET_INDEX(edge->ytop, polygon->ymin) when + * it is added to the polygon. */ + struct edge **y_buckets; + + struct edge *y_buckets_embedded[64]; + struct edge edges_embedded[32]; +}; + +struct mono_scan_converter { + struct polygon polygon[1]; + + /* Leftmost edge on the current scan line. */ + struct edge head, tail; + int is_vertical; + + cairo_half_open_span_t *spans; + cairo_half_open_span_t spans_embedded[64]; + int num_spans; + + /* Clip box. */ + int32_t xmin, xmax; + int32_t ymin, ymax; +}; + +#define I(x) _cairo_fixed_integer_round_down(x) + +/* Compute the floored division (x*a)/b. Assumes / and % perform symmetric + * division. */ +static struct quorem +floored_muldivrem(int x, int a, int b) +{ + struct quorem qr; + long long xa = (long long)x*a; + qr.quo = xa/b; + qr.rem = xa%b; + if ((xa>=0) != (b>=0) && qr.rem) { + qr.quo -= 1; + qr.rem += b; + } + return qr; +} + +static cairo_status_t +polygon_init (struct polygon *polygon, int ymin, int ymax) +{ + unsigned h = ymax - ymin + 1; + + polygon->y_buckets = polygon->y_buckets_embedded; + if (h > ARRAY_LENGTH (polygon->y_buckets_embedded)) { + polygon->y_buckets = _cairo_malloc_ab (h, sizeof (struct edge *)); + if (unlikely (NULL == polygon->y_buckets)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + memset (polygon->y_buckets, 0, h * sizeof (struct edge *)); + polygon->y_buckets[h-1] = (void *)-1; + + polygon->ymin = ymin; + polygon->ymax = ymax; + return CAIRO_STATUS_SUCCESS; +} + +static void +polygon_fini (struct polygon *polygon) +{ + if (polygon->y_buckets != polygon->y_buckets_embedded) + free (polygon->y_buckets); + + if (polygon->edges != polygon->edges_embedded) + free (polygon->edges); +} + +static void +_polygon_insert_edge_into_its_y_bucket(struct polygon *polygon, + struct edge *e, + int y) +{ + struct edge **ptail = &polygon->y_buckets[y - polygon->ymin]; + if (*ptail) + (*ptail)->prev = e; + e->next = *ptail; + e->prev = NULL; + *ptail = e; +} + +inline static void +polygon_add_edge (struct polygon *polygon, + const cairo_edge_t *edge) +{ + struct edge *e; + cairo_fixed_t dx; + cairo_fixed_t dy; + int y, ytop, ybot; + int ymin = polygon->ymin; + int ymax = polygon->ymax; + + y = I(edge->top); + ytop = MAX(y, ymin); + + y = I(edge->bottom); + ybot = MIN(y, ymax); + + if (ybot <= ytop) + return; + + e = polygon->edges + polygon->num_edges++; + e->height_left = ybot - ytop; + e->dir = edge->dir; + + dx = edge->line.p2.x - edge->line.p1.x; + dy = edge->line.p2.y - edge->line.p1.y; + + if (dx == 0) { + e->vertical = TRUE; + e->x.quo = edge->line.p1.x; + e->x.rem = 0; + e->dxdy.quo = 0; + e->dxdy.rem = 0; + e->dy = 0; + } else { + e->vertical = FALSE; + e->dxdy = floored_muldivrem (dx, CAIRO_FIXED_ONE, dy); + e->dy = dy; + + e->x = floored_muldivrem (ytop * CAIRO_FIXED_ONE + CAIRO_FIXED_FRAC_MASK/2 - edge->line.p1.y, + dx, dy); + e->x.quo += edge->line.p1.x; + } + e->x.rem -= dy; + + _polygon_insert_edge_into_its_y_bucket (polygon, e, ytop); +} + +static struct edge * +merge_sorted_edges (struct edge *head_a, struct edge *head_b) +{ + struct edge *head, **next, *prev; + int32_t x; + + prev = head_a->prev; + next = &head; + if (head_a->x.quo <= head_b->x.quo) { + head = head_a; + } else { + head = head_b; + head_b->prev = prev; + goto start_with_b; + } + + do { + x = head_b->x.quo; + while (head_a != NULL && head_a->x.quo <= x) { + prev = head_a; + next = &head_a->next; + head_a = head_a->next; + } + + head_b->prev = prev; + *next = head_b; + if (head_a == NULL) + return head; + +start_with_b: + x = head_a->x.quo; + while (head_b != NULL && head_b->x.quo <= x) { + prev = head_b; + next = &head_b->next; + head_b = head_b->next; + } + + head_a->prev = prev; + *next = head_a; + if (head_b == NULL) + return head; + } while (1); +} + +static struct edge * +sort_edges (struct edge *list, + unsigned int level, + struct edge **head_out) +{ + struct edge *head_other, *remaining; + unsigned int i; + + head_other = list->next; + + if (head_other == NULL) { + *head_out = list; + return NULL; + } + + remaining = head_other->next; + if (list->x.quo <= head_other->x.quo) { + *head_out = list; + head_other->next = NULL; + } else { + *head_out = head_other; + head_other->prev = list->prev; + head_other->next = list; + list->prev = head_other; + list->next = NULL; + } + + for (i = 0; i < level && remaining; i++) { + remaining = sort_edges (remaining, i, &head_other); + *head_out = merge_sorted_edges (*head_out, head_other); + } + + return remaining; +} + +static struct edge * +merge_unsorted_edges (struct edge *head, struct edge *unsorted) +{ + sort_edges (unsorted, UINT_MAX, &unsorted); + return merge_sorted_edges (head, unsorted); +} + +inline static void +active_list_merge_edges (struct mono_scan_converter *c, struct edge *edges) +{ + struct edge *e; + + for (e = edges; c->is_vertical && e; e = e->next) + c->is_vertical = e->vertical; + + c->head.next = merge_unsorted_edges (c->head.next, edges); +} + +inline static void +add_span (struct mono_scan_converter *c, int x1, int x2) +{ + int n; + + if (x1 < c->xmin) + x1 = c->xmin; + if (x2 > c->xmax) + x2 = c->xmax; + if (x2 <= x1) + return; + + n = c->num_spans++; + c->spans[n].x = x1; + c->spans[n].coverage = 255; + + n = c->num_spans++; + c->spans[n].x = x2; + c->spans[n].coverage = 0; +} + +inline static void +row (struct mono_scan_converter *c, unsigned int mask) +{ + struct edge *edge = c->head.next; + int xstart = INT_MIN, prev_x = INT_MIN; + int winding = 0; + + c->num_spans = 0; + while (&c->tail != edge) { + struct edge *next = edge->next; + int xend = I(edge->x.quo); + + if (--edge->height_left) { + if (!edge->vertical) { + edge->x.quo += edge->dxdy.quo; + edge->x.rem += edge->dxdy.rem; + if (edge->x.rem >= 0) { + ++edge->x.quo; + edge->x.rem -= edge->dy; + } + } + + if (edge->x.quo < prev_x) { + struct edge *pos = edge->prev; + pos->next = next; + next->prev = pos; + do { + pos = pos->prev; + } while (edge->x.quo < pos->x.quo); + pos->next->prev = edge; + edge->next = pos->next; + edge->prev = pos; + pos->next = edge; + } else + prev_x = edge->x.quo; + } else { + edge->prev->next = next; + next->prev = edge->prev; + } + + winding += edge->dir; + if ((winding & mask) == 0) { + if (I(next->x.quo) > xend + 1) { + add_span (c, xstart, xend); + xstart = INT_MIN; + } + } else if (xstart == INT_MIN) + xstart = xend; + + edge = next; + } +} + +static cairo_status_t +_mono_scan_converter_init(struct mono_scan_converter *c, + int xmin, int ymin, + int xmax, int ymax) +{ + cairo_status_t status; + int max_num_spans; + + status = polygon_init (c->polygon, ymin, ymax); + if (unlikely (status)) + return status; + + max_num_spans = xmax - xmin + 1; + if (max_num_spans > ARRAY_LENGTH(c->spans_embedded)) { + c->spans = _cairo_malloc_ab (max_num_spans, + sizeof (cairo_half_open_span_t)); + if (unlikely (c->spans == NULL)) { + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + } else + c->spans = c->spans_embedded; + + c->xmin = xmin; + c->xmax = xmax; + c->ymin = ymin; + c->ymax = ymax; + + c->head.vertical = 1; + c->head.height_left = INT_MAX; + c->head.x.quo = _cairo_fixed_from_int (_cairo_fixed_integer_part (INT_MIN)); + c->head.prev = NULL; + c->head.next = &c->tail; + c->tail.prev = &c->head; + c->tail.next = NULL; + c->tail.x.quo = _cairo_fixed_from_int (_cairo_fixed_integer_part (INT_MAX)); + c->tail.height_left = INT_MAX; + c->tail.vertical = 1; + + c->is_vertical = 1; + return CAIRO_STATUS_SUCCESS; +} + +static void +_mono_scan_converter_fini(struct mono_scan_converter *self) +{ + if (self->spans != self->spans_embedded) + free (self->spans); + + polygon_fini(self->polygon); +} + +static cairo_status_t +mono_scan_converter_allocate_edges(struct mono_scan_converter *c, + int num_edges) + +{ + c->polygon->num_edges = 0; + c->polygon->edges = c->polygon->edges_embedded; + if (num_edges > ARRAY_LENGTH (c->polygon->edges_embedded)) { + c->polygon->edges = _cairo_malloc_ab (num_edges, sizeof (struct edge)); + if (unlikely (c->polygon->edges == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + return CAIRO_STATUS_SUCCESS; +} + +static void +mono_scan_converter_add_edge (struct mono_scan_converter *c, + const cairo_edge_t *edge) +{ + polygon_add_edge (c->polygon, edge); +} + +static void +step_edges (struct mono_scan_converter *c, int count) +{ + struct edge *edge; + + for (edge = c->head.next; edge != &c->tail; edge = edge->next) { + edge->height_left -= count; + if (! edge->height_left) { + edge->prev->next = edge->next; + edge->next->prev = edge->prev; + } + } +} + +static cairo_status_t +mono_scan_converter_render(struct mono_scan_converter *c, + unsigned int winding_mask, + cairo_span_renderer_t *renderer) +{ + struct polygon *polygon = c->polygon; + int i, j, h = c->ymax - c->ymin; + cairo_status_t status; + + for (i = 0; i < h; i = j) { + j = i + 1; + + if (polygon->y_buckets[i]) + active_list_merge_edges (c, polygon->y_buckets[i]); + + if (c->is_vertical) { + int min_height; + struct edge *e; + + e = c->head.next; + min_height = e->height_left; + while (e != &c->tail) { + if (e->height_left < min_height) + min_height = e->height_left; + e = e->next; + } + + while (--min_height >= 1 && polygon->y_buckets[j] == NULL) + j++; + if (j != i + 1) + step_edges (c, j - (i + 1)); + } + + row (c, winding_mask); + if (c->num_spans) { + status = renderer->render_rows (renderer, c->ymin+i, j-i, + c->spans, c->num_spans); + if (unlikely (status)) + return status; + } + + /* XXX recompute after dropping edges? */ + if (c->head.next == &c->tail) + c->is_vertical = 1; + } + + return CAIRO_STATUS_SUCCESS; +} + +struct _cairo_mono_scan_converter { + cairo_scan_converter_t base; + + struct mono_scan_converter converter[1]; + cairo_fill_rule_t fill_rule; +}; + +typedef struct _cairo_mono_scan_converter cairo_mono_scan_converter_t; + +static void +_cairo_mono_scan_converter_destroy (void *converter) +{ + cairo_mono_scan_converter_t *self = converter; + _mono_scan_converter_fini (self->converter); + free(self); +} + +cairo_status_t +_cairo_mono_scan_converter_add_polygon (void *converter, + const cairo_polygon_t *polygon) +{ + cairo_mono_scan_converter_t *self = converter; + cairo_status_t status; + int i; + +#if 0 + FILE *file = fopen ("polygon.txt", "w"); + _cairo_debug_print_polygon (file, polygon); + fclose (file); +#endif + + status = mono_scan_converter_allocate_edges (self->converter, + polygon->num_edges); + if (unlikely (status)) + return status; + + for (i = 0; i < polygon->num_edges; i++) + mono_scan_converter_add_edge (self->converter, &polygon->edges[i]); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_mono_scan_converter_generate (void *converter, + cairo_span_renderer_t *renderer) +{ + cairo_mono_scan_converter_t *self = converter; + + return mono_scan_converter_render (self->converter, + self->fill_rule == CAIRO_FILL_RULE_WINDING ? ~0 : 1, + renderer); +} + +cairo_scan_converter_t * +_cairo_mono_scan_converter_create (int xmin, + int ymin, + int xmax, + int ymax, + cairo_fill_rule_t fill_rule) +{ + cairo_mono_scan_converter_t *self; + cairo_status_t status; + + self = _cairo_calloc (sizeof(struct _cairo_mono_scan_converter)); + if (unlikely (self == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto bail_nomem; + } + + self->base.destroy = _cairo_mono_scan_converter_destroy; + self->base.generate = _cairo_mono_scan_converter_generate; + + status = _mono_scan_converter_init (self->converter, + xmin, ymin, xmax, ymax); + if (unlikely (status)) + goto bail; + + self->fill_rule = fill_rule; + + return &self->base; + + bail: + self->base.destroy(&self->base); + bail_nomem: + return _cairo_scan_converter_create_in_error (status); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-mutex-impl-private.h b/local/recipes/libs/cairo/source/src/cairo-mutex-impl-private.h new file mode 100644 index 0000000000..b9430beef2 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-mutex-impl-private.h @@ -0,0 +1,247 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005,2007 Red Hat, Inc. + * Copyright © 2007 Mathias Hasselmann + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Mathias Hasselmann + * Behdad Esfahbod + */ + +#ifndef CAIRO_MUTEX_IMPL_PRIVATE_H +#define CAIRO_MUTEX_IMPL_PRIVATE_H + +#include "cairo.h" + +#include "config.h" + +#if HAVE_LOCKDEP +#include +#endif + +/* A fully qualified no-operation statement */ +#define CAIRO_MUTEX_IMPL_NOOP do {/*no-op*/} while (0) +/* And one that evaluates its argument once */ +#define CAIRO_MUTEX_IMPL_NOOP1(expr) do { (void)(expr); } while (0) +/* Note: 'if (expr) {}' is an alternative to '(void)(expr);' that will 'use' the + * result of __attribute__((warn_used_result)) functions. */ + +/* Cairo mutex implementation: + * + * Any new mutex implementation needs to do the following: + * + * - Condition on the right header or feature. Headers are + * preferred as eg. you still can use win32 mutex implementation + * on a win32 system even if you do not compile the win32 + * surface/backend. + * + * - typedef #cairo_mutex_impl_t to the proper mutex type on your target + * system. Note that you may or may not need to use a pointer, + * depending on what kinds of initialization your mutex + * implementation supports. No trailing semicolon needed. + * You should be able to compile the following snippet (don't try + * running it): + * + * + * cairo_mutex_impl_t _cairo_some_mutex; + * + * + * - #define %CAIRO_MUTEX_IMPL_ 1 with suitable name for your platform. You + * can later use this symbol in cairo-system.c. + * + * - #define CAIRO_MUTEX_IMPL_LOCK(mutex) and CAIRO_MUTEX_IMPL_UNLOCK(mutex) to + * proper statement to lock/unlock the mutex object passed in. + * You can (and should) assume that the mutex is already + * initialized, and is-not-already-locked/is-locked, + * respectively. Use the "do { ... } while (0)" idiom if necessary. + * No trailing semicolons are needed (in any macro you define here). + * You should be able to compile the following snippet: + * + * - #define CAIRO_MUTEX_IMPL_TRY_LOCK(mutex) to try locking the mutex object, + * returning TRUE if the lock is acquired, FALSE if the mutex could not be locked. + * + * + * cairo_mutex_impl_t _cairo_some_mutex; + * + * if (1) + * CAIRO_MUTEX_IMPL_LOCK (_cairo_some_mutex); + * else + * CAIRO_MUTEX_IMPL_UNLOCK (_cairo_some_mutex); + * + * + * - #define %CAIRO_MUTEX_IMPL_NIL_INITIALIZER to something that can + * initialize the #cairo_mutex_impl_t type you defined. Most of the + * time one of 0, %NULL, or {} works. At this point + * you should be able to compile the following snippet: + * + * + * cairo_mutex_impl_t _cairo_some_mutex = CAIRO_MUTEX_IMPL_NIL_INITIALIZER; + * + * if (1) + * CAIRO_MUTEX_IMPL_LOCK (_cairo_some_mutex); + * else + * CAIRO_MUTEX_IMPL_UNLOCK (_cairo_some_mutex); + * + * + * - If the above code is not enough to initialize a mutex on + * your platform, #define CAIRO_MUTEX_IMPL_INIT(mutex) to statement + * to initialize the mutex (allocate resources, etc). Such that + * you should be able to compile AND RUN the following snippet: + * + * + * cairo_mutex_impl_t _cairo_some_mutex = CAIRO_MUTEX_IMPL_NIL_INITIALIZER; + * + * CAIRO_MUTEX_IMPL_INIT (_cairo_some_mutex); + * + * if (1) + * CAIRO_MUTEX_IMPL_LOCK (_cairo_some_mutex); + * else + * CAIRO_MUTEX_IMPL_UNLOCK (_cairo_some_mutex); + * + * + * - If you define CAIRO_MUTEX_IMPL_INIT(mutex), cairo will use it to + * initialize all static mutex'es. If for any reason that should + * not happen (eg. %CAIRO_MUTEX_IMPL_INIT is just a faster way than + * what cairo does using %CAIRO_MUTEX_IMPL_NIL_INITIALIZER), then + * + * #define CAIRO_MUTEX_IMPL_INITIALIZE() CAIRO_MUTEX_IMPL_NOOP + * + * + * - If your system supports freeing a mutex object (deallocating + * resources, etc), then #define CAIRO_MUTEX_IMPL_FINI(mutex) to do + * that. + * + * - If you define CAIRO_MUTEX_IMPL_FINI(mutex), cairo will use it to + * define a finalizer function to finalize all static mutex'es. + * However, it's up to you to call CAIRO_MUTEX_IMPL_FINALIZE() at + * proper places, eg. when the system is unloading the cairo library. + * So, if for any reason finalizing static mutex'es is not needed + * (eg. you never call CAIRO_MUTEX_IMPL_FINALIZE()), then + * + * #define CAIRO_MUTEX_IMPL_FINALIZE() CAIRO_MUTEX_IMPL_NOOP + * + * + * - That is all. If for any reason you think the above API is + * not enough to implement #cairo_mutex_impl_t on your system, please + * stop and write to the cairo mailing list about it. DO NOT + * poke around cairo-mutex-private.h for possible solutions. + */ + +#if CAIRO_NO_MUTEX + +/* No mutexes */ + + typedef int cairo_mutex_impl_t; + +# define CAIRO_MUTEX_IMPL_NO 1 +# define CAIRO_MUTEX_IMPL_INITIALIZE() CAIRO_MUTEX_IMPL_NOOP +# define CAIRO_MUTEX_IMPL_LOCK(mutex) CAIRO_MUTEX_IMPL_NOOP1(mutex) +# define CAIRO_MUTEX_IMPL_TRY_LOCK(mutex) ((mutex), TRUE) +# define CAIRO_MUTEX_IMPL_UNLOCK(mutex) CAIRO_MUTEX_IMPL_NOOP1(mutex) +# define CAIRO_MUTEX_IMPL_NIL_INITIALIZER 0 + +# define CAIRO_MUTEX_HAS_RECURSIVE_IMPL 1 + + typedef int cairo_recursive_mutex_impl_t; + +# define CAIRO_RECURSIVE_MUTEX_IMPL_INIT(mutex) +# define CAIRO_RECURSIVE_MUTEX_IMPL_NIL_INITIALIZER 0 + +#elif defined(_WIN32) /******************************************************/ + +# include + + typedef CRITICAL_SECTION cairo_mutex_impl_t; + +# define CAIRO_MUTEX_IMPL_WIN32 1 +# define CAIRO_MUTEX_IMPL_LOCK(mutex) EnterCriticalSection (&(mutex)) +# define CAIRO_MUTEX_IMPL_TRY_LOCK(mutex) TryEnterCriticalSection (&(mutex)) +# define CAIRO_MUTEX_IMPL_UNLOCK(mutex) LeaveCriticalSection (&(mutex)) +# define CAIRO_MUTEX_IMPL_INIT(mutex) InitializeCriticalSection (&(mutex)) +# define CAIRO_MUTEX_IMPL_FINI(mutex) DeleteCriticalSection (&(mutex)) +# define CAIRO_MUTEX_IMPL_NIL_INITIALIZER { NULL, 0, 0, NULL, NULL, 0 } + +#elif CAIRO_HAS_PTHREAD /* and finally if there are no native mutexes ********/ + +# include + + typedef pthread_mutex_t cairo_mutex_impl_t; + typedef pthread_mutex_t cairo_recursive_mutex_impl_t; + +# define CAIRO_MUTEX_IMPL_PTHREAD 1 +#if HAVE_LOCKDEP +/* expose all mutexes to the validator */ +# define CAIRO_MUTEX_IMPL_INIT(mutex) pthread_mutex_init (&(mutex), NULL) +#endif +# define CAIRO_MUTEX_IMPL_LOCK(mutex) pthread_mutex_lock (&(mutex)) +# define CAIRO_MUTEX_IMPL_TRY_LOCK(mutex) (pthread_mutex_trylock (&(mutex)) == 0) +# define CAIRO_MUTEX_IMPL_UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) +#if HAVE_LOCKDEP +# define CAIRO_MUTEX_IS_LOCKED(mutex) LOCKDEP_IS_LOCKED (&(mutex)) +# define CAIRO_MUTEX_IS_UNLOCKED(mutex) LOCKDEP_IS_UNLOCKED (&(mutex)) +#endif +# define CAIRO_MUTEX_IMPL_FINI(mutex) pthread_mutex_destroy (&(mutex)) +#if ! HAVE_LOCKDEP +# define CAIRO_MUTEX_IMPL_FINALIZE() CAIRO_MUTEX_IMPL_NOOP +#endif +# define CAIRO_MUTEX_IMPL_NIL_INITIALIZER PTHREAD_MUTEX_INITIALIZER + +# define CAIRO_MUTEX_HAS_RECURSIVE_IMPL 1 +# define CAIRO_RECURSIVE_MUTEX_IMPL_INIT(mutex) do { \ + pthread_mutexattr_t attr; \ + pthread_mutexattr_init (&attr); \ + pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE); \ + pthread_mutex_init (&(mutex), &attr); \ + pthread_mutexattr_destroy (&attr); \ +} while (0) +# define CAIRO_RECURSIVE_MUTEX_IMPL_NIL_INITIALIZER PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP + +#else /**********************************************************************/ + +# error "XXX: No mutex implementation found. Cairo will not work with multiple threads. Define CAIRO_NO_MUTEX to 1 to acknowledge and accept this limitation and compile cairo without thread-safety support." + +#endif + +/* By default mutex implementations are assumed to be recursive */ +#if ! CAIRO_MUTEX_HAS_RECURSIVE_IMPL + +# define CAIRO_MUTEX_HAS_RECURSIVE_IMPL 1 + + typedef cairo_mutex_impl_t cairo_recursive_mutex_impl_t; + +# define CAIRO_RECURSIVE_MUTEX_IMPL_INIT(mutex) CAIRO_MUTEX_IMPL_INIT(mutex) +# define CAIRO_RECURSIVE_MUTEX_IMPL_NIL_INITIALIZER CAIRO_MUTEX_IMPL_NIL_INITIALIZER + +#endif + +#endif diff --git a/local/recipes/libs/cairo/source/src/cairo-mutex-list-private.h b/local/recipes/libs/cairo/source/src/cairo-mutex-list-private.h new file mode 100644 index 0000000000..af5cc0517a --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-mutex-list-private.h @@ -0,0 +1,72 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2007 Mathias Hasselmann + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * Contributor(s): + * Mathias Hasselmann + */ + +#ifndef CAIRO_FEATURES_H +/* This block is to just make this header file standalone */ +#define CAIRO_MUTEX_DECLARE(mutex) +#endif + +CAIRO_MUTEX_DECLARE (_cairo_pattern_solid_surface_cache_lock) + +CAIRO_MUTEX_DECLARE (_cairo_image_solid_cache_mutex) + +CAIRO_MUTEX_DECLARE (_cairo_toy_font_face_mutex) +CAIRO_MUTEX_DECLARE (_cairo_intern_string_mutex) +CAIRO_MUTEX_DECLARE (_cairo_scaled_font_map_mutex) +CAIRO_MUTEX_DECLARE (_cairo_scaled_glyph_page_cache_mutex) +CAIRO_MUTEX_DECLARE (_cairo_scaled_font_error_mutex) +CAIRO_MUTEX_DECLARE (_cairo_glyph_cache_mutex) + +#if CAIRO_HAS_FT_FONT +CAIRO_MUTEX_DECLARE (_cairo_ft_unscaled_font_map_mutex) +#endif + +#if CAIRO_HAS_WIN32_FONT +CAIRO_MUTEX_DECLARE (_cairo_win32_font_face_mutex) +CAIRO_MUTEX_DECLARE (_cairo_win32_font_dc_mutex) +#endif + +#if CAIRO_HAS_XLIB_SURFACE +CAIRO_MUTEX_DECLARE (_cairo_xlib_display_mutex) +#endif + +#if CAIRO_HAS_XCB_SURFACE +CAIRO_MUTEX_DECLARE (_cairo_xcb_connections_mutex) +#endif + +#if !defined (HAS_ATOMIC_OPS) || defined (ATOMIC_OP_NEEDS_MEMORY_BARRIER) +CAIRO_MUTEX_DECLARE (_cairo_atomic_mutex) +#endif + +/* Undefine, to err on unintended inclusion */ +#undef CAIRO_MUTEX_DECLARE diff --git a/local/recipes/libs/cairo/source/src/cairo-mutex-private.h b/local/recipes/libs/cairo/source/src/cairo-mutex-private.h new file mode 100644 index 0000000000..6b3eb03654 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-mutex-private.h @@ -0,0 +1,73 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005,2007 Red Hat, Inc. + * Copyright © 2007 Mathias Hasselmann + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Mathias Hasselmann + * Behdad Esfahbod + */ + +#ifndef CAIRO_MUTEX_PRIVATE_H +#define CAIRO_MUTEX_PRIVATE_H + +#include "cairo-mutex-type-private.h" + +CAIRO_BEGIN_DECLS + +#if _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER +cairo_private void _cairo_mutex_initialize (void); +#endif +#if _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER +cairo_private void _cairo_mutex_finalize (void); +#endif +/* only if using static initializer and/or finalizer define the boolean */ +#if _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER || _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER + +#if HAS_ATOMIC_OPS + cairo_private extern cairo_atomic_int_t _cairo_mutex_initialized; +#else + cairo_private extern int _cairo_mutex_initialized; +#endif + +#endif + +/* Finally, extern the static mutexes and undef */ + +#define CAIRO_MUTEX_DECLARE(mutex) cairo_private extern cairo_mutex_t mutex; +#include "cairo-mutex-list-private.h" +#undef CAIRO_MUTEX_DECLARE + +CAIRO_END_DECLS + +#endif diff --git a/local/recipes/libs/cairo/source/src/cairo-mutex-type-private.h b/local/recipes/libs/cairo/source/src/cairo-mutex-type-private.h new file mode 100644 index 0000000000..ef8fc5e463 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-mutex-type-private.h @@ -0,0 +1,201 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005,2007 Red Hat, Inc. + * Copyright © 2007 Mathias Hasselmann + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Mathias Hasselmann + * Behdad Esfahbod + */ + +#ifndef CAIRO_MUTEX_TYPE_PRIVATE_H +#define CAIRO_MUTEX_TYPE_PRIVATE_H + +#include "cairo-compiler-private.h" +#include "cairo-mutex-impl-private.h" + +/* Only the following four are mandatory at this point */ +#ifndef CAIRO_MUTEX_IMPL_LOCK +# error "CAIRO_MUTEX_IMPL_LOCK not defined. Check cairo-mutex-impl-private.h." +#endif +#ifndef CAIRO_MUTEX_IMPL_TRY_LOCK +# error "CAIRO_MUTEX_IMPL_TRY_LOCK not defined. Check cairo-mutex-impl-private.h." +#endif +#ifndef CAIRO_MUTEX_IMPL_UNLOCK +# error "CAIRO_MUTEX_IMPL_UNLOCK not defined. Check cairo-mutex-impl-private.h." +#endif +#ifndef CAIRO_MUTEX_IMPL_NIL_INITIALIZER +# error "CAIRO_MUTEX_IMPL_NIL_INITIALIZER not defined. Check cairo-mutex-impl-private.h." +#endif +#ifndef CAIRO_RECURSIVE_MUTEX_IMPL_INIT +# error "CAIRO_RECURSIVE_MUTEX_IMPL_INIT not defined. Check cairo-mutex-impl-private.h." +#endif + + +/* make sure implementations don't fool us: we decide these ourself */ +#undef _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER +#undef _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER + + +#ifdef CAIRO_MUTEX_IMPL_INIT + +/* If %CAIRO_MUTEX_IMPL_INIT is defined, we may need to initialize all + * static mutex'es. */ +# ifndef CAIRO_MUTEX_IMPL_INITIALIZE +# define CAIRO_MUTEX_IMPL_INITIALIZE() do { \ + if (!_cairo_mutex_initialized) \ + _cairo_mutex_initialize (); \ + } while(0) + +/* and make sure we implement the above */ +# define _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER 1 +# endif /* CAIRO_MUTEX_IMPL_INITIALIZE */ + +#else /* no CAIRO_MUTEX_IMPL_INIT */ + +/* Otherwise we probably don't need to initialize static mutex'es, */ +# ifndef CAIRO_MUTEX_IMPL_INITIALIZE +# define CAIRO_MUTEX_IMPL_INITIALIZE() CAIRO_MUTEX_IMPL_NOOP +# endif /* CAIRO_MUTEX_IMPL_INITIALIZE */ + +/* and dynamic ones can be initialized using the static initializer. */ +# define CAIRO_MUTEX_IMPL_INIT(mutex) do { \ + cairo_mutex_t _tmp_mutex = CAIRO_MUTEX_IMPL_NIL_INITIALIZER; \ + memcpy (&(mutex), &_tmp_mutex, sizeof (_tmp_mutex)); \ + } while (0) + +#endif /* CAIRO_MUTEX_IMPL_INIT */ + +#ifdef CAIRO_MUTEX_IMPL_FINI + +/* If %CAIRO_MUTEX_IMPL_FINI is defined, we may need to finalize all + * static mutex'es. */ +# ifndef CAIRO_MUTEX_IMPL_FINALIZE +# define CAIRO_MUTEX_IMPL_FINALIZE() do { \ + if (_cairo_mutex_initialized) \ + _cairo_mutex_finalize (); \ + } while(0) + +/* and make sure we implement the above */ +# define _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER 1 +# endif /* CAIRO_MUTEX_IMPL_FINALIZE */ + +#else /* no CAIRO_MUTEX_IMPL_FINI */ + +/* Otherwise we probably don't need to finalize static mutex'es, */ +# ifndef CAIRO_MUTEX_IMPL_FINALIZE +# define CAIRO_MUTEX_IMPL_FINALIZE() CAIRO_MUTEX_IMPL_NOOP +# endif /* CAIRO_MUTEX_IMPL_FINALIZE */ + +/* neither do the dynamic ones. */ +# define CAIRO_MUTEX_IMPL_FINI(mutex) CAIRO_MUTEX_IMPL_NOOP1(mutex) + +#endif /* CAIRO_MUTEX_IMPL_FINI */ + + +#ifndef _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER +#define _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER 0 +#endif +#ifndef _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER +#define _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER 0 +#endif + + +/* Make sure everything we want is defined */ +#ifndef CAIRO_MUTEX_IMPL_INITIALIZE +# error "CAIRO_MUTEX_IMPL_INITIALIZE not defined" +#endif +#ifndef CAIRO_MUTEX_IMPL_FINALIZE +# error "CAIRO_MUTEX_IMPL_FINALIZE not defined" +#endif +#ifndef CAIRO_MUTEX_IMPL_LOCK +# error "CAIRO_MUTEX_IMPL_LOCK not defined" +#endif +#ifndef CAIRO_MUTEX_IMPL_TRY_LOCK +# error "CAIRO_MUTEX_IMPL_TRY_LOCK not defined" +#endif +#ifndef CAIRO_MUTEX_IMPL_UNLOCK +# error "CAIRO_MUTEX_IMPL_UNLOCK not defined" +#endif +#ifndef CAIRO_MUTEX_IMPL_INIT +# error "CAIRO_MUTEX_IMPL_INIT not defined" +#endif +#ifndef CAIRO_MUTEX_IMPL_FINI +# error "CAIRO_MUTEX_IMPL_FINI not defined" +#endif +#ifndef CAIRO_MUTEX_IMPL_NIL_INITIALIZER +# error "CAIRO_MUTEX_IMPL_NIL_INITIALIZER not defined" +#endif + + +/* Public interface. */ + +/* By default it simply uses the implementation provided. + * But we can provide for debugging features by overriding them */ + +#ifndef CAIRO_MUTEX_DEBUG +typedef cairo_mutex_impl_t cairo_mutex_t; +typedef cairo_recursive_mutex_impl_t cairo_recursive_mutex_t; +#else +# define cairo_mutex_t cairo_mutex_impl_t +#endif + +#define CAIRO_MUTEX_INITIALIZE CAIRO_MUTEX_IMPL_INITIALIZE +#define CAIRO_MUTEX_FINALIZE CAIRO_MUTEX_IMPL_FINALIZE +#define CAIRO_MUTEX_LOCK CAIRO_MUTEX_IMPL_LOCK +#define CAIRO_MUTEX_TRY_LOCK CAIRO_MUTEX_IMPL_TRY_LOCK +#define CAIRO_MUTEX_UNLOCK CAIRO_MUTEX_IMPL_UNLOCK +#define CAIRO_MUTEX_INIT CAIRO_MUTEX_IMPL_INIT +#define CAIRO_MUTEX_FINI CAIRO_MUTEX_IMPL_FINI +#define CAIRO_MUTEX_NIL_INITIALIZER CAIRO_MUTEX_IMPL_NIL_INITIALIZER + +#define CAIRO_RECURSIVE_MUTEX_INIT CAIRO_RECURSIVE_MUTEX_IMPL_INIT +#define CAIRO_RECURSIVE_MUTEX_NIL_INITIALIZER CAIRO_RECURSIVE_MUTEX_IMPL_NIL_INITIALIZER + +#ifndef CAIRO_MUTEX_IS_LOCKED +# define CAIRO_MUTEX_IS_LOCKED(name) 1 +#endif +#ifndef CAIRO_MUTEX_IS_UNLOCKED +# define CAIRO_MUTEX_IS_UNLOCKED(name) 1 +#endif + + +/* Debugging support */ + +#ifdef CAIRO_MUTEX_DEBUG + +/* TODO add mutex debugging facilities here (eg deadlock detection) */ + +#endif /* CAIRO_MUTEX_DEBUG */ + +#endif diff --git a/local/recipes/libs/cairo/source/src/cairo-mutex.c b/local/recipes/libs/cairo/source/src/cairo-mutex.c new file mode 100644 index 0000000000..89acad5253 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-mutex.c @@ -0,0 +1,113 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2007 Mathias Hasselmann + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * Contributor(s): + * Mathias Hasselmann + */ + +#include "cairoint.h" + +#include "cairo-mutex-private.h" + +#define CAIRO_MUTEX_DECLARE(mutex) cairo_mutex_t mutex = CAIRO_MUTEX_NIL_INITIALIZER; +#include "cairo-mutex-list-private.h" +#undef CAIRO_MUTEX_DECLARE + +#if _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER || _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER + +#define _CAIRO_MUTEX_UNINITIALIZED 0 +#define _CAIRO_MUTEX_INITIALIZING 1 +#define _CAIRO_MUTEX_INITIALIZED 2 + +# if _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER +# define _CAIRO_MUTEX_IMPL_INITIALIZED_DEFAULT_VALUE _CAIRO_MUTEX_UNINITIALIZED +# else +# define _CAIRO_MUTEX_IMPL_INITIALIZED_DEFAULT_VALUE _CAIRO_MUTEX_INITIALIZED +# endif + +#if HAS_ATOMIC_OPS +cairo_atomic_int_t _cairo_mutex_initialized = _CAIRO_MUTEX_IMPL_INITIALIZED_DEFAULT_VALUE; +#else +int _cairo_mutex_initialized = _CAIRO_MUTEX_IMPL_INITIALIZED_DEFAULT_VALUE; +#endif + +# undef _CAIRO_MUTEX_IMPL_INITIALIZED_DEFAULT_VALUE + +#endif + +#if _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER +void _cairo_mutex_initialize (void) +{ +#if HAS_ATOMIC_OPS + int old_value; + do { + old_value = _cairo_atomic_int_cmpxchg_return_old (&_cairo_mutex_initialized, + _CAIRO_MUTEX_UNINITIALIZED, + _CAIRO_MUTEX_INITIALIZING); + if (old_value == _CAIRO_MUTEX_INITIALIZED) + return; + + } while (old_value == _CAIRO_MUTEX_INITIALIZING); +#else + if (_cairo_mutex_initialized == _CAIRO_MUTEX_INITIALIZED) + return; + + _cairo_mutex_initialized = _CAIRO_MUTEX_INITIALIZED; +#endif + +#define CAIRO_MUTEX_DECLARE(mutex) CAIRO_MUTEX_INIT (mutex); +#include "cairo-mutex-list-private.h" +#undef CAIRO_MUTEX_DECLARE + +#if HAS_ATOMIC_OPS + _cairo_atomic_int_set_relaxed (&_cairo_mutex_initialized, _CAIRO_MUTEX_INITIALIZED); +#endif +} +#endif + +#if _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER +void _cairo_mutex_finalize (void) +{ +#if HAS_ATOMIC_OPS + if (!_cairo_atomic_int_cmpxchg (&_cairo_mutex_initialized, + _CAIRO_MUTEX_INITIALIZED, + _CAIRO_MUTEX_UNINITIALIZED)) + return; +#else + if (_cairo_mutex_initialized != _CAIRO_MUTEX_INITIALIZED) + return; + + _cairo_mutex_initialized = _CAIRO_MUTEX_UNINITIALIZED; +#endif + +#define CAIRO_MUTEX_DECLARE(mutex) CAIRO_MUTEX_FINI (mutex); +#include "cairo-mutex-list-private.h" +#undef CAIRO_MUTEX_DECLARE +} +#endif diff --git a/local/recipes/libs/cairo/source/src/cairo-no-compositor.c b/local/recipes/libs/cairo/source/src/cairo-no-compositor.c new file mode 100644 index 0000000000..1602a12f63 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-no-compositor.c @@ -0,0 +1,107 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Joonas Pihlaja + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-compositor-private.h" + +static cairo_int_status_t +_cairo_no_compositor_paint (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents) +{ + ASSERT_NOT_REACHED; + return CAIRO_INT_STATUS_NOTHING_TO_DO; +} + +static cairo_int_status_t +_cairo_no_compositor_mask (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents) +{ + ASSERT_NOT_REACHED; + return CAIRO_INT_STATUS_NOTHING_TO_DO; +} + +static cairo_int_status_t +_cairo_no_compositor_stroke (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias) +{ + ASSERT_NOT_REACHED; + return CAIRO_INT_STATUS_NOTHING_TO_DO; +} + +static cairo_int_status_t +_cairo_no_compositor_fill (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + ASSERT_NOT_REACHED; + return CAIRO_INT_STATUS_NOTHING_TO_DO; +} + +static cairo_int_status_t +_cairo_no_compositor_glyphs (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_bool_t overlap) +{ + ASSERT_NOT_REACHED; + return CAIRO_INT_STATUS_NOTHING_TO_DO; +} + +const cairo_compositor_t __cairo_no_compositor = { + NULL, + _cairo_no_compositor_paint, + _cairo_no_compositor_mask, + _cairo_no_compositor_stroke, + _cairo_no_compositor_fill, + _cairo_no_compositor_glyphs, +}; diff --git a/local/recipes/libs/cairo/source/src/cairo-observer.c b/local/recipes/libs/cairo/source/src/cairo-observer.c new file mode 100644 index 0000000000..36d6b93bd6 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-observer.c @@ -0,0 +1,52 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2010 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Intel Corporation + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-list-inline.h" + +void +_cairo_observers_notify (cairo_list_t *observers, void *arg) +{ + cairo_observer_t *obs, *next; + + cairo_list_foreach_entry_safe (obs, next, + cairo_observer_t, + observers, link) + { + obs->callback (obs, arg); + } +} diff --git a/local/recipes/libs/cairo/source/src/cairo-output-stream-private.h b/local/recipes/libs/cairo/source/src/cairo-output-stream-private.h new file mode 100644 index 0000000000..fe091d0c07 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-output-stream-private.h @@ -0,0 +1,201 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Author(s): + * Kristian Høgsberg + */ + +#ifndef CAIRO_OUTPUT_STREAM_PRIVATE_H +#define CAIRO_OUTPUT_STREAM_PRIVATE_H + +#include "cairo-compiler-private.h" +#include "cairo-types-private.h" + +#include +#include +#include + +typedef cairo_status_t +(*cairo_output_stream_write_func_t) (cairo_output_stream_t *output_stream, + const unsigned char *data, + unsigned int length); + +typedef cairo_status_t +(*cairo_output_stream_flush_func_t) (cairo_output_stream_t *output_stream); + +typedef cairo_status_t +(*cairo_output_stream_close_func_t) (cairo_output_stream_t *output_stream); + +struct _cairo_output_stream { + cairo_output_stream_write_func_t write_func; + cairo_output_stream_flush_func_t flush_func; + cairo_output_stream_close_func_t close_func; + long long position; + cairo_status_t status; + cairo_bool_t closed; +}; + +extern const cairo_private cairo_output_stream_t _cairo_output_stream_nil; + +cairo_private void +_cairo_output_stream_init (cairo_output_stream_t *stream, + cairo_output_stream_write_func_t write_func, + cairo_output_stream_flush_func_t flush_func, + cairo_output_stream_close_func_t close_func); + +cairo_private cairo_status_t +_cairo_output_stream_fini (cairo_output_stream_t *stream); + + +/* We already have the following declared in cairo.h: + +typedef cairo_status_t (*cairo_write_func_t) (void *closure, + const unsigned char *data, + unsigned int length); +*/ +typedef cairo_status_t (*cairo_close_func_t) (void *closure); + + +/* This function never returns %NULL. If an error occurs (NO_MEMORY) + * while trying to create the output stream this function returns a + * valid pointer to a nil output stream. + * + * Note that even with a nil surface, the close_func callback will be + * called by a call to _cairo_output_stream_close or + * _cairo_output_stream_destroy. + */ +cairo_private cairo_output_stream_t * +_cairo_output_stream_create (cairo_write_func_t write_func, + cairo_close_func_t close_func, + void *closure); + +cairo_private cairo_output_stream_t * +_cairo_output_stream_create_in_error (cairo_status_t status); + +/* Tries to flush any buffer maintained by the stream or its delegates. */ +cairo_private cairo_status_t +_cairo_output_stream_flush (cairo_output_stream_t *stream); + +/* Returns the final status value associated with this object, just + * before its last gasp. This final status value will capture any + * status failure returned by the stream's close_func as well. */ +cairo_private cairo_status_t +_cairo_output_stream_close (cairo_output_stream_t *stream); + +/* Returns the final status value associated with this object, just + * before its last gasp. This final status value will capture any + * status failure returned by the stream's close_func as well. */ +cairo_private cairo_status_t +_cairo_output_stream_destroy (cairo_output_stream_t *stream); + +cairo_private void +_cairo_output_stream_write (cairo_output_stream_t *stream, + const void *data, size_t length); + +cairo_private void +_cairo_output_stream_write_hex_string (cairo_output_stream_t *stream, + const unsigned char *data, + size_t length); + +cairo_private void +_cairo_output_stream_vprintf (cairo_output_stream_t *stream, + const char *fmt, + va_list ap) CAIRO_PRINTF_FORMAT ( 2, 0); + +cairo_private void +_cairo_output_stream_printf (cairo_output_stream_t *stream, + const char *fmt, + ...) CAIRO_PRINTF_FORMAT (2, 3); + +/* Print matrix element values with rounding of insignificant digits. */ +cairo_private void +_cairo_output_stream_print_matrix (cairo_output_stream_t *stream, + const cairo_matrix_t *matrix); + +cairo_private long long +_cairo_output_stream_get_position (cairo_output_stream_t *stream); + +cairo_private cairo_status_t +_cairo_output_stream_get_status (cairo_output_stream_t *stream); + +/* This function never returns %NULL. If an error occurs (NO_MEMORY or + * WRITE_ERROR) while trying to create the output stream this function + * returns a valid pointer to a nil output stream. + * + * Note: Even if a nil surface is returned, the caller should still + * call _cairo_output_stream_destroy (or _cairo_output_stream_close at + * least) in order to ensure that everything is properly cleaned up. + */ +cairo_private cairo_output_stream_t * +_cairo_output_stream_create_for_filename (const char *filename); + +/* This function never returns %NULL. If an error occurs (NO_MEMORY or + * WRITE_ERROR) while trying to create the output stream this function + * returns a valid pointer to a nil output stream. + * + * The caller still "owns" file and is responsible for calling fclose + * on it when finished. The stream will not do this itself. + */ +cairo_private cairo_output_stream_t * +_cairo_output_stream_create_for_file (FILE *file); + +cairo_private cairo_output_stream_t * +_cairo_memory_stream_create (void); + +cairo_private void +_cairo_memory_stream_copy (cairo_output_stream_t *base, + cairo_output_stream_t *dest); + +cairo_private int +_cairo_memory_stream_length (cairo_output_stream_t *stream); + +cairo_private cairo_status_t +_cairo_memory_stream_destroy (cairo_output_stream_t *abstract_stream, + unsigned char **data_out, + unsigned long *length_out); + +cairo_private cairo_output_stream_t * +_cairo_null_stream_create (void); + +/* cairo-base85-stream.c */ +cairo_private cairo_output_stream_t * +_cairo_base85_stream_create (cairo_output_stream_t *output); + +/* cairo-base64-stream.c */ +cairo_private cairo_output_stream_t * +_cairo_base64_stream_create (cairo_output_stream_t *output); + +/* cairo-deflate-stream.c */ +cairo_private cairo_output_stream_t * +_cairo_deflate_stream_create (cairo_output_stream_t *output); + + +#endif /* CAIRO_OUTPUT_STREAM_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-output-stream.c b/local/recipes/libs/cairo/source/src/cairo-output-stream.c new file mode 100644 index 0000000000..799a73e04f --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-output-stream.c @@ -0,0 +1,824 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo-output-stream.c: Output stream abstraction + * + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Author(s): + * Kristian Høgsberg + */ + +#define _DEFAULT_SOURCE /* for snprintf() */ +#include "cairoint.h" + +#include "cairo-output-stream-private.h" + +#include "cairo-array-private.h" +#include "cairo-error-private.h" +#include "cairo-compiler-private.h" + +#include +#include + +/* Numbers printed with %f are printed with this number of significant + * digits after the decimal. + */ +#define SIGNIFICANT_DIGITS_AFTER_DECIMAL 6 + +/* Numbers printed with %g are assumed to only have %CAIRO_FIXED_FRAC_BITS + * bits of precision available after the decimal point. + * + * FIXED_POINT_DECIMAL_DIGITS specifies the minimum number of decimal + * digits after the decimal point required to preserve the available + * precision. + * + * The conversion is: + * + * + * FIXED_POINT_DECIMAL_DIGITS = ceil( CAIRO_FIXED_FRAC_BITS * ln(2)/ln(10) ) + * + * + * We can replace ceil(x) with (int)(x+1) since x will never be an + * integer for any likely value of %CAIRO_FIXED_FRAC_BITS. + */ +#define FIXED_POINT_DECIMAL_DIGITS ((int)(CAIRO_FIXED_FRAC_BITS*0.301029996 + 1)) + +void +_cairo_output_stream_init (cairo_output_stream_t *stream, + cairo_output_stream_write_func_t write_func, + cairo_output_stream_flush_func_t flush_func, + cairo_output_stream_close_func_t close_func) +{ + stream->write_func = write_func; + stream->flush_func = flush_func; + stream->close_func = close_func; + stream->position = 0; + stream->status = CAIRO_STATUS_SUCCESS; + stream->closed = FALSE; +} + +cairo_status_t +_cairo_output_stream_fini (cairo_output_stream_t *stream) +{ + return _cairo_output_stream_close (stream); +} + +const cairo_output_stream_t _cairo_output_stream_nil = { + NULL, /* write_func */ + NULL, /* flush_func */ + NULL, /* close_func */ + 0, /* position */ + CAIRO_STATUS_NO_MEMORY, + FALSE /* closed */ +}; + +static const cairo_output_stream_t _cairo_output_stream_nil_write_error = { + NULL, /* write_func */ + NULL, /* flush_func */ + NULL, /* close_func */ + 0, /* position */ + CAIRO_STATUS_WRITE_ERROR, + FALSE /* closed */ +}; + +typedef struct _cairo_output_stream_with_closure { + cairo_output_stream_t base; + cairo_write_func_t write_func; + cairo_close_func_t close_func; + void *closure; +} cairo_output_stream_with_closure_t; + + +static cairo_status_t +closure_write (cairo_output_stream_t *stream, + const unsigned char *data, unsigned int length) +{ + cairo_output_stream_with_closure_t *stream_with_closure = + (cairo_output_stream_with_closure_t *) stream; + + if (stream_with_closure->write_func == NULL) + return CAIRO_STATUS_SUCCESS; + + return stream_with_closure->write_func (stream_with_closure->closure, + data, length); +} + +static cairo_status_t +closure_close (cairo_output_stream_t *stream) +{ + cairo_output_stream_with_closure_t *stream_with_closure = + (cairo_output_stream_with_closure_t *) stream; + + if (stream_with_closure->close_func != NULL) + return stream_with_closure->close_func (stream_with_closure->closure); + else + return CAIRO_STATUS_SUCCESS; +} + +cairo_output_stream_t * +_cairo_output_stream_create (cairo_write_func_t write_func, + cairo_close_func_t close_func, + void *closure) +{ + cairo_output_stream_with_closure_t *stream; + + stream = _cairo_calloc (sizeof (cairo_output_stream_with_closure_t)); + if (unlikely (stream == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_output_stream_t *) &_cairo_output_stream_nil; + } + + _cairo_output_stream_init (&stream->base, + closure_write, NULL, closure_close); + stream->write_func = write_func; + stream->close_func = close_func; + stream->closure = closure; + + return &stream->base; +} + +cairo_output_stream_t * +_cairo_output_stream_create_in_error (cairo_status_t status) +{ + cairo_output_stream_t *stream; + + /* check for the common ones */ + if (status == CAIRO_STATUS_NO_MEMORY) + return (cairo_output_stream_t *) &_cairo_output_stream_nil; + if (status == CAIRO_STATUS_WRITE_ERROR) + return (cairo_output_stream_t *) &_cairo_output_stream_nil_write_error; + + stream = _cairo_calloc (sizeof (cairo_output_stream_t)); + if (unlikely (stream == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_output_stream_t *) &_cairo_output_stream_nil; + } + + _cairo_output_stream_init (stream, NULL, NULL, NULL); + stream->status = status; + + return stream; +} + +cairo_status_t +_cairo_output_stream_flush (cairo_output_stream_t *stream) +{ + cairo_status_t status; + + if (stream->closed) + return stream->status; + + if (stream == &_cairo_output_stream_nil || + stream == &_cairo_output_stream_nil_write_error) + { + return stream->status; + } + + if (stream->flush_func) { + status = stream->flush_func (stream); + /* Don't overwrite a pre-existing status failure. */ + if (stream->status == CAIRO_STATUS_SUCCESS) + stream->status = status; + } + + return stream->status; +} + +cairo_status_t +_cairo_output_stream_close (cairo_output_stream_t *stream) +{ + cairo_status_t status; + + if (stream->closed) + return stream->status; + + if (stream == &_cairo_output_stream_nil || + stream == &_cairo_output_stream_nil_write_error) + { + return stream->status; + } + + if (stream->close_func) { + status = stream->close_func (stream); + /* Don't overwrite a pre-existing status failure. */ + if (stream->status == CAIRO_STATUS_SUCCESS) + stream->status = status; + } + + stream->closed = TRUE; + + return stream->status; +} + +cairo_status_t +_cairo_output_stream_destroy (cairo_output_stream_t *stream) +{ + cairo_status_t status; + + assert (stream != NULL); + + if (stream == &_cairo_output_stream_nil || + stream == &_cairo_output_stream_nil_write_error) + { + return stream->status; + } + + status = _cairo_output_stream_fini (stream); + free (stream); + + return status; +} + +void +_cairo_output_stream_write (cairo_output_stream_t *stream, + const void *data, size_t length) +{ + if (length == 0 || stream->status) + return; + + if (stream->closed) { + stream->status = CAIRO_STATUS_WRITE_ERROR; + return; + } + + stream->status = stream->write_func (stream, data, length); + stream->position += length; +} + +void +_cairo_output_stream_write_hex_string (cairo_output_stream_t *stream, + const unsigned char *data, + size_t length) +{ + const char hex_chars[] = "0123456789abcdef"; + char buffer[2]; + unsigned int i, column; + + for (i = 0, column = 0; i < length; i++, column++) { + if (column == 38) { + _cairo_output_stream_write (stream, "\n", 1); + column = 0; + } + buffer[0] = hex_chars[(data[i] >> 4) & 0x0f]; + buffer[1] = hex_chars[data[i] & 0x0f]; + _cairo_output_stream_write (stream, buffer, 2); + } +} + +/* Format a double in a locale independent way and trim trailing + * zeros. Based on code from Alex Larson . + * https://mail.gnome.org/archives/gtk-devel-list/2001-October/msg00087.html + * + * The code in the patch is copyright Red Hat, Inc under the LGPL, but + * has been relicensed under the LGPL/MPL dual license for inclusion + * into cairo (see COPYING). -- Kristian Høgsberg + */ +static void +_cairo_dtostr (char *buffer, size_t size, double d, cairo_bool_t limited_precision) +{ + const char *decimal_point; + int decimal_point_len; + char *p; + int decimal_len; + int num_zeros, decimal_digits; + + /* Omit the minus sign from negative zero. */ + if (d == 0.0) + d = 0.0; + + decimal_point = _cairo_get_locale_decimal_point (); + decimal_point_len = strlen (decimal_point); + + assert (decimal_point_len != 0); + + if (limited_precision) { + snprintf (buffer, size, "%.*f", FIXED_POINT_DECIMAL_DIGITS, d); + } else { + /* Using "%f" to print numbers less than 0.1 will result in + * reduced precision due to the default 6 digits after the + * decimal point. + * + * For numbers is < 0.1, we print with maximum precision and count + * the number of zeros between the decimal point and the first + * significant digit. We then print the number again with the + * number of decimal places that gives us the required number of + * significant digits. This ensures the number is correctly + * rounded. + */ + if (fabs (d) >= 0.1) { + snprintf (buffer, size, "%f", d); + } else { + snprintf (buffer, size, "%.18f", d); + p = buffer; + + if (*p == '+' || *p == '-') + p++; + + while (_cairo_isdigit (*p)) + p++; + + if (strncmp (p, decimal_point, decimal_point_len) == 0) + p += decimal_point_len; + + num_zeros = 0; + while (*p++ == '0') + num_zeros++; + + decimal_digits = num_zeros + SIGNIFICANT_DIGITS_AFTER_DECIMAL; + + if (decimal_digits < 18) + snprintf (buffer, size, "%.*f", decimal_digits, d); + } + } + p = buffer; + + if (*p == '+' || *p == '-') + p++; + + while (_cairo_isdigit (*p)) + p++; + + if (strncmp (p, decimal_point, decimal_point_len) == 0) { + *p = '.'; + decimal_len = strlen (p + decimal_point_len); + memmove (p + 1, p + decimal_point_len, decimal_len); + p[1 + decimal_len] = 0; + + /* Remove trailing zeros and decimal point if possible. */ + for (p = p + decimal_len; *p == '0'; p--) + *p = 0; + + if (*p == '.') { + *p = 0; + p--; + } + } +} + +enum { + LENGTH_MODIFIER_LONG = 0x100, + LENGTH_MODIFIER_LONG_LONG = 0x200 +}; + +/* Here's a limited reimplementation of printf. The reason for doing + * this is primarily to special case handling of doubles. We want + * locale independent formatting of doubles and we want to trim + * trailing zeros. This is handled by dtostr() above, and the code + * below handles everything else by calling snprintf() to do the + * formatting. This functionality is only for internal use and we + * only implement the formats we actually use. + */ +void +_cairo_output_stream_vprintf (cairo_output_stream_t *stream, + const char *fmt, va_list ap) +{ +#define SINGLE_FMT_BUFFER_SIZE 32 + char buffer[512], single_fmt[SINGLE_FMT_BUFFER_SIZE]; + int single_fmt_length; + char *p; + const char *f, *start; + int length_modifier, width; + cairo_bool_t var_width; + + f = fmt; + p = buffer; + while (*f != '\0') { + if (p == buffer + sizeof (buffer)) { + _cairo_output_stream_write (stream, buffer, sizeof (buffer)); + p = buffer; + } + + if (*f != '%') { + *p++ = *f++; + continue; + } + + start = f; + f++; + + if (*f == '0') + f++; + + var_width = FALSE; + if (*f == '*') { + var_width = TRUE; + f++; + } + + while (_cairo_isdigit (*f)) + f++; + + length_modifier = 0; + if (*f == 'l') { + length_modifier = LENGTH_MODIFIER_LONG; + f++; + if (*f == 'l') { + length_modifier = LENGTH_MODIFIER_LONG_LONG; + f++; + } + } + + /* The only format strings exist in the cairo implementation + * itself. So there's an internal consistency problem if any + * of them is larger than our format buffer size. */ + single_fmt_length = f - start + 1; + assert (single_fmt_length + 1 <= SINGLE_FMT_BUFFER_SIZE); + + /* Reuse the format string for this conversion. */ + memcpy (single_fmt, start, single_fmt_length); + single_fmt[single_fmt_length] = '\0'; + + /* Flush contents of buffer before snprintf()'ing into it. */ + _cairo_output_stream_write (stream, buffer, p - buffer); + + /* We group signed and unsigned together in this switch, the + * only thing that matters here is the size of the arguments, + * since we're just passing the data through to sprintf(). */ + switch (*f | length_modifier) { + case '%': + buffer[0] = *f; + buffer[1] = 0; + break; + case 'd': + case 'u': + case 'o': + case 'x': + case 'X': + if (var_width) { + width = va_arg (ap, int); + snprintf (buffer, sizeof buffer, + single_fmt, width, va_arg (ap, int)); + } else { + snprintf (buffer, sizeof buffer, single_fmt, va_arg (ap, int)); + } + break; + case 'd' | LENGTH_MODIFIER_LONG: + case 'u' | LENGTH_MODIFIER_LONG: + case 'o' | LENGTH_MODIFIER_LONG: + case 'x' | LENGTH_MODIFIER_LONG: + case 'X' | LENGTH_MODIFIER_LONG: + if (var_width) { + width = va_arg (ap, int); + snprintf (buffer, sizeof buffer, + single_fmt, width, va_arg (ap, long int)); + } else { + snprintf (buffer, sizeof buffer, + single_fmt, va_arg (ap, long int)); + } + break; + case 'd' | LENGTH_MODIFIER_LONG_LONG: + case 'u' | LENGTH_MODIFIER_LONG_LONG: + case 'o' | LENGTH_MODIFIER_LONG_LONG: + case 'x' | LENGTH_MODIFIER_LONG_LONG: + case 'X' | LENGTH_MODIFIER_LONG_LONG: + if (var_width) { + width = va_arg (ap, int); + snprintf (buffer, sizeof buffer, + single_fmt, width, va_arg (ap, long long int)); + } else { + snprintf (buffer, sizeof buffer, + single_fmt, va_arg (ap, long long int)); + } + break; + case 's': { + /* Write out strings as they may be larger than the buffer. */ + const char *s = va_arg (ap, const char *); + int len = strlen(s); + _cairo_output_stream_write (stream, s, len); + buffer[0] = 0; + } + break; + case 'f': + _cairo_dtostr (buffer, sizeof buffer, va_arg (ap, double), FALSE); + break; + case 'g': + _cairo_dtostr (buffer, sizeof buffer, va_arg (ap, double), TRUE); + break; + case 'c': + buffer[0] = va_arg (ap, int); + buffer[1] = 0; + break; + default: + ASSERT_NOT_REACHED; + } + p = buffer + strlen (buffer); + f++; + } + + _cairo_output_stream_write (stream, buffer, p - buffer); +} + +void +_cairo_output_stream_printf (cairo_output_stream_t *stream, + const char *fmt, ...) +{ + va_list ap; + + va_start (ap, fmt); + + _cairo_output_stream_vprintf (stream, fmt, ap); + + va_end (ap); +} + +/* Matrix elements that are smaller than the value of the largest element * MATRIX_ROUNDING_TOLERANCE + * are rounded down to zero. */ +#define MATRIX_ROUNDING_TOLERANCE 1e-12 + +void +_cairo_output_stream_print_matrix (cairo_output_stream_t *stream, + const cairo_matrix_t *matrix) +{ + cairo_matrix_t m; + double s, e; + + m = *matrix; + s = fabs (m.xx); + if (fabs (m.xy) > s) + s = fabs (m.xy); + if (fabs (m.yx) > s) + s = fabs (m.yx); + if (fabs (m.yy) > s) + s = fabs (m.yy); + + e = s * MATRIX_ROUNDING_TOLERANCE; + if (fabs(m.xx) < e) + m.xx = 0; + if (fabs(m.xy) < e) + m.xy = 0; + if (fabs(m.yx) < e) + m.yx = 0; + if (fabs(m.yy) < e) + m.yy = 0; + if (fabs(m.x0) < e) + m.x0 = 0; + if (fabs(m.y0) < e) + m.y0 = 0; + + _cairo_output_stream_printf (stream, + "%f %f %f %f %f %f", + m.xx, m.yx, m.xy, m.yy, m.x0, m.y0); +} + +long long +_cairo_output_stream_get_position (cairo_output_stream_t *stream) +{ + return stream->position; +} + +cairo_status_t +_cairo_output_stream_get_status (cairo_output_stream_t *stream) +{ + return stream->status; +} + +/* Maybe this should be a configure time option, so embedded targets + * don't have to pull in stdio. */ + + +typedef struct _stdio_stream { + cairo_output_stream_t base; + FILE *file; +} stdio_stream_t; + +static cairo_status_t +stdio_write (cairo_output_stream_t *base, + const unsigned char *data, unsigned int length) +{ + stdio_stream_t *stream = (stdio_stream_t *) base; + + if (fwrite (data, 1, length, stream->file) != length) + return _cairo_error (CAIRO_STATUS_WRITE_ERROR); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +stdio_flush (cairo_output_stream_t *base) +{ + stdio_stream_t *stream = (stdio_stream_t *) base; + + fflush (stream->file); + + if (ferror (stream->file)) + return _cairo_error (CAIRO_STATUS_WRITE_ERROR); + else + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +stdio_close (cairo_output_stream_t *base) +{ + cairo_status_t status; + stdio_stream_t *stream = (stdio_stream_t *) base; + + status = stdio_flush (base); + + fclose (stream->file); + + return status; +} + +cairo_output_stream_t * +_cairo_output_stream_create_for_file (FILE *file) +{ + stdio_stream_t *stream; + + if (file == NULL) { + _cairo_error_throw (CAIRO_STATUS_WRITE_ERROR); + return (cairo_output_stream_t *) &_cairo_output_stream_nil_write_error; + } + + stream = _cairo_calloc (sizeof *stream); + if (unlikely (stream == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_output_stream_t *) &_cairo_output_stream_nil; + } + + _cairo_output_stream_init (&stream->base, + stdio_write, stdio_flush, stdio_flush); + stream->file = file; + + return &stream->base; +} + +cairo_output_stream_t * +_cairo_output_stream_create_for_filename (const char *filename) +{ + stdio_stream_t *stream; + FILE *file; + cairo_status_t status; + + if (filename == NULL) + return _cairo_null_stream_create (); + + status = _cairo_fopen (filename, "wb", &file); + + if (status != CAIRO_STATUS_SUCCESS) + return _cairo_output_stream_create_in_error (status); + + if (file == NULL) { + switch (errno) { + case ENOMEM: + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_output_stream_t *) &_cairo_output_stream_nil; + default: + _cairo_error_throw (CAIRO_STATUS_WRITE_ERROR); + return (cairo_output_stream_t *) &_cairo_output_stream_nil_write_error; + } + } + + stream = _cairo_calloc (sizeof *stream); + if (unlikely (stream == NULL)) { + fclose (file); + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_output_stream_t *) &_cairo_output_stream_nil; + } + + _cairo_output_stream_init (&stream->base, + stdio_write, stdio_flush, stdio_close); + stream->file = file; + + return &stream->base; +} + + +typedef struct _memory_stream { + cairo_output_stream_t base; + cairo_array_t array; +} memory_stream_t; + +static cairo_status_t +memory_write (cairo_output_stream_t *base, + const unsigned char *data, unsigned int length) +{ + memory_stream_t *stream = (memory_stream_t *) base; + + return _cairo_array_append_multiple (&stream->array, data, length); +} + +static cairo_status_t +memory_close (cairo_output_stream_t *base) +{ + memory_stream_t *stream = (memory_stream_t *) base; + + _cairo_array_fini (&stream->array); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_output_stream_t * +_cairo_memory_stream_create (void) +{ + memory_stream_t *stream; + + stream = _cairo_calloc (sizeof *stream); + if (unlikely (stream == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_output_stream_t *) &_cairo_output_stream_nil; + } + + _cairo_output_stream_init (&stream->base, memory_write, NULL, memory_close); + _cairo_array_init (&stream->array, 1); + + return &stream->base; +} + +cairo_status_t +_cairo_memory_stream_destroy (cairo_output_stream_t *abstract_stream, + unsigned char **data_out, + unsigned long *length_out) +{ + memory_stream_t *stream; + cairo_status_t status; + + status = abstract_stream->status; + if (unlikely (status)) + return _cairo_output_stream_destroy (abstract_stream); + + stream = (memory_stream_t *) abstract_stream; + + *length_out = _cairo_array_num_elements (&stream->array); + *data_out = _cairo_calloc (*length_out); + if (unlikely (*data_out == NULL)) { + status = _cairo_output_stream_destroy (abstract_stream); + assert (status == CAIRO_STATUS_SUCCESS); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + memcpy (*data_out, _cairo_array_index (&stream->array, 0), *length_out); + + return _cairo_output_stream_destroy (abstract_stream); +} + +void +_cairo_memory_stream_copy (cairo_output_stream_t *base, + cairo_output_stream_t *dest) +{ + memory_stream_t *stream = (memory_stream_t *) base; + + if (base->status) { + dest->status = base->status; + return; + } + + _cairo_output_stream_write (dest, + _cairo_array_index (&stream->array, 0), + _cairo_array_num_elements (&stream->array)); +} + +int +_cairo_memory_stream_length (cairo_output_stream_t *base) +{ + memory_stream_t *stream = (memory_stream_t *) base; + + return _cairo_array_num_elements (&stream->array); +} + +static cairo_status_t +null_write (cairo_output_stream_t *base, + const unsigned char *data, unsigned int length) +{ + return CAIRO_STATUS_SUCCESS; +} + +cairo_output_stream_t * +_cairo_null_stream_create (void) +{ + cairo_output_stream_t *stream; + + stream = _cairo_calloc (sizeof *stream); + if (unlikely (stream == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_output_stream_t *) &_cairo_output_stream_nil; + } + + _cairo_output_stream_init (stream, null_write, NULL, NULL); + + return stream; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-paginated-private.h b/local/recipes/libs/cairo/source/src/cairo-paginated-private.h new file mode 100644 index 0000000000..cc8fd1c7b4 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-paginated-private.h @@ -0,0 +1,184 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl Worth + */ + +#ifndef CAIRO_PAGINATED_H +#define CAIRO_PAGINATED_H + +#include "cairoint.h" + +struct _cairo_paginated_surface_backend { + /* Optional. Will be called once for each page. + * + * Note: With respect to the order of drawing operations as seen + * by the target, this call will occur before any drawing + * operations for the relevant page. However, with respect to the + * function calls as made by the user, this call will be *after* + * any drawing operations for the page, (that is, it will occur + * during the user's call to cairo_show_page or cairo_copy_page). + */ + cairo_warn cairo_int_status_t + (*start_page) (void *surface); + + /* Required. Will be called twice for each page, once with an + * argument of CAIRO_PAGINATED_MODE_ANALYZE and once with + * CAIRO_PAGINATED_MODE_RENDER. See more details in the + * documentation for _cairo_paginated_surface_create below. + */ + cairo_warn cairo_int_status_t + (*set_paginated_mode) (void *surface, + cairo_paginated_mode_t mode); + + /* Optional. Specifies the smallest box that encloses all objects + * on the page. Will be called at the end of the ANALYZE phase but + * before the mode is changed to RENDER. + */ + cairo_warn cairo_int_status_t + (*set_bounding_box) (void *surface, + cairo_box_t *bbox); + + /* Optional. Indicates whether the page requires fallback images. + * Will be called at the end of the ANALYZE phase but before the + * mode is changed to RENDER. + */ + cairo_warn cairo_int_status_t + (*set_fallback_images_required) (void *surface, + cairo_bool_t fallbacks_required); + + cairo_bool_t + (*supports_fine_grained_fallbacks) (void *surface); + + /* Optional. Indicates whether the page requires a thumbnail image to be + * supplied. If a thumbnail is required, set width, height to size required + * and return TRUE. + */ + cairo_bool_t + (*requires_thumbnail_image) (void *surface, + int *width, + int *height); + + /* If thumbbail image requested, this function will be called before + * _show_page(). + */ + cairo_warn cairo_int_status_t + (*set_thumbnail_image) (void *surface, + cairo_image_surface_t *image); +}; + +/* A #cairo_paginated_surface_t provides a very convenient wrapper that + * is well-suited for doing the analysis common to most surfaces that + * have paginated output, (that is, things directed at printers, or + * for saving content in files such as PostScript or PDF files). + * + * To use the paginated surface, you'll first need to create your + * 'real' surface using _cairo_surface_init() and the standard + * #cairo_surface_backend_t. Then you also call + * _cairo_paginated_surface_create which takes its own, much simpler, + * #cairo_paginated_surface_backend_t. You are free to return the result + * of _cairo_paginated_surface_create() from your public + * cairo__surface_create(). The paginated backend will be careful + * to not let the user see that they really got a "wrapped" + * surface. See test-paginated-surface.c for a fairly minimal example + * of a paginated-using surface. That should be a reasonable example + * to follow. + * + * What the paginated surface does is first save all drawing + * operations for a page into a recording-surface. Then when the user calls + * cairo_show_page(), the paginated surface performs the following + * sequence of operations (using the backend functions passed to + * cairo_paginated_surface_create()): + * + * 1. Calls start_page() (if not %NULL). At this point, it is appropriate + * for the target to emit any page-specific header information into + * its output. + * + * 2. Calls set_paginated_mode() with an argument of %CAIRO_PAGINATED_MODE_ANALYZE + * + * 3. Replays the recording-surface to the target surface, (with an + * analysis surface inserted between which watches the return value + * from each operation). This analysis stage is used to decide which + * operations will require fallbacks. + * + * 4. Calls set_bounding_box() to provide the target surface with the + * tight bounding box of the page. + * + * 5. Calls set_paginated_mode() with an argument of %CAIRO_PAGINATED_MODE_RENDER + * + * 6. Replays a subset of the recording-surface operations to the target surface + * + * 7. Calls set_paginated_mode() with an argument of %CAIRO_PAGINATED_MODE_FALLBACK + * + * 8. Replays the remaining operations to an image surface, sets an + * appropriate clip on the target, then paints the resulting image + * surface to the target. + * + * So, the target will see drawing operations during three separate + * stages, (ANALYZE, RENDER and FALLBACK). During the ANALYZE phase + * the target should not actually perform any rendering, (for example, + * if performing output to a file, no output should be generated + * during this stage). Instead the drawing functions simply need to + * return %CAIRO_STATUS_SUCCESS or %CAIRO_INT_STATUS_UNSUPPORTED to + * indicate whether rendering would be supported. And it should do + * this as quickly as possible. The FALLBACK phase allows the surface + * to distinguish fallback images from native rendering in case they + * need to be handled as a special case. + * + * Note: The paginated surface layer assumes that the target surface + * is "blank" by default at the beginning of each page, without any + * need for an explicit erase operation, (as opposed to an image + * surface, for example, which might have uninitialized content + * originally). As such, it optimizes away CLEAR operations that + * happen at the beginning of each page---the target surface will not + * even see these operations. + */ +cairo_private cairo_surface_t * +_cairo_paginated_surface_create (cairo_surface_t *target, + cairo_content_t content, + const cairo_paginated_surface_backend_t *backend); + +cairo_private cairo_surface_t * +_cairo_paginated_surface_get_target (cairo_surface_t *surface); + +cairo_private cairo_surface_t * +_cairo_paginated_surface_get_recording (cairo_surface_t *surface); + +cairo_private cairo_bool_t +_cairo_surface_is_paginated (cairo_surface_t *surface); + +cairo_private cairo_status_t +_cairo_paginated_surface_set_size (cairo_surface_t *surface, + double width, + double height); + +#endif /* CAIRO_PAGINATED_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-paginated-surface-private.h b/local/recipes/libs/cairo/source/src/cairo-paginated-surface-private.h new file mode 100644 index 0000000000..ebf4b34249 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-paginated-surface-private.h @@ -0,0 +1,62 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl Worth + */ + +#ifndef CAIRO_PAGINATED_SURFACE_H +#define CAIRO_PAGINATED_SURFACE_H + +#include "cairo.h" + +#include "cairo-surface-private.h" + +typedef struct _cairo_paginated_surface { + cairo_surface_t base; + + /* The target surface to hold the final result. */ + cairo_surface_t *target; + + cairo_content_t content; + + /* Paginated-surface specific functions for the target */ + const cairo_paginated_surface_backend_t *backend; + + /* A cairo_recording_surface to record all operations. To be replayed + * against target, and also against image surface as necessary for + * fallbacks. */ + cairo_surface_t *recording_surface; + + int page_num; +} cairo_paginated_surface_t; + +#endif /* CAIRO_PAGINATED_SURFACE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-paginated-surface.c b/local/recipes/libs/cairo/source/src/cairo-paginated-surface.c new file mode 100644 index 0000000000..ff05ecd519 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-paginated-surface.c @@ -0,0 +1,831 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * Copyright © 2007 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl Worth + * Keith Packard + * Adrian Johnson + */ + +/* The paginated surface layer exists to provide as much code sharing + * as possible for the various paginated surface backends in cairo + * (PostScript, PDF, etc.). See cairo-paginated-private.h for + * more details on how it works and how to use it. + */ + +#include "cairoint.h" + +#include "cairo-paginated-private.h" +#include "cairo-paginated-surface-private.h" +#include "cairo-recording-surface-private.h" +#include "cairo-analysis-surface-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-surface-subsurface-inline.h" + +static const cairo_surface_backend_t cairo_paginated_surface_backend; + +static cairo_int_status_t +_cairo_paginated_surface_show_page (void *abstract_surface); + +static cairo_surface_t * +_cairo_paginated_surface_create_similar (void *abstract_surface, + cairo_content_t content, + int width, + int height) +{ + cairo_rectangle_t rect; + rect.x = rect.y = 0.; + rect.width = width; + rect.height = height; + return cairo_recording_surface_create (content, &rect); +} + +static cairo_surface_t * +_create_recording_surface_for_target (cairo_surface_t *target, + cairo_content_t content) +{ + cairo_rectangle_int_t rect; + + if (_cairo_surface_get_extents (target, &rect)) { + cairo_rectangle_t recording_extents; + + recording_extents.x = rect.x; + recording_extents.y = rect.y; + recording_extents.width = rect.width; + recording_extents.height = rect.height; + + return cairo_recording_surface_create (content, &recording_extents); + } else { + return cairo_recording_surface_create (content, NULL); + } +} + +cairo_surface_t * +_cairo_paginated_surface_create (cairo_surface_t *target, + cairo_content_t content, + const cairo_paginated_surface_backend_t *backend) +{ + cairo_paginated_surface_t *surface; + cairo_status_t status; + + surface = _cairo_calloc (sizeof (cairo_paginated_surface_t)); + if (unlikely (surface == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto FAIL; + } + + _cairo_surface_init (&surface->base, + &cairo_paginated_surface_backend, + NULL, /* device */ + content, + target->is_vector); + + /* Override surface->base.type with target's type so we don't leak + * evidence of the paginated wrapper out to the user. */ + surface->base.type = target->type; + + surface->target = cairo_surface_reference (target); + + surface->content = content; + surface->backend = backend; + + surface->recording_surface = _create_recording_surface_for_target (target, content); + status = surface->recording_surface->status; + if (unlikely (status)) + goto FAIL_CLEANUP_SURFACE; + + surface->page_num = 1; + surface->base.is_clear = TRUE; + + return &surface->base; + + FAIL_CLEANUP_SURFACE: + cairo_surface_destroy (target); + free (surface); + FAIL: + return _cairo_surface_create_in_error (status); +} + +cairo_bool_t +_cairo_surface_is_paginated (cairo_surface_t *surface) +{ + return surface->backend == &cairo_paginated_surface_backend; +} + +cairo_surface_t * +_cairo_paginated_surface_get_target (cairo_surface_t *surface) +{ + cairo_paginated_surface_t *paginated_surface; + + assert (_cairo_surface_is_paginated (surface)); + + paginated_surface = (cairo_paginated_surface_t *) surface; + return paginated_surface->target; +} + +cairo_surface_t * +_cairo_paginated_surface_get_recording (cairo_surface_t *surface) +{ + cairo_paginated_surface_t *paginated_surface; + + assert (_cairo_surface_is_paginated (surface)); + + paginated_surface = (cairo_paginated_surface_t *) surface; + return paginated_surface->recording_surface; +} + +cairo_status_t +_cairo_paginated_surface_set_size (cairo_surface_t *surface, + double width, + double height) +{ + cairo_paginated_surface_t *paginated_surface; + cairo_status_t status; + cairo_rectangle_t recording_extents; + + assert (_cairo_surface_is_paginated (surface)); + + paginated_surface = (cairo_paginated_surface_t *) surface; + + recording_extents.x = 0; + recording_extents.y = 0; + recording_extents.width = width; + recording_extents.height = height; + + cairo_surface_destroy (paginated_surface->recording_surface); + paginated_surface->recording_surface = cairo_recording_surface_create (paginated_surface->content, + &recording_extents); + status = paginated_surface->recording_surface->status; + if (unlikely (status)) + return _cairo_surface_set_error (surface, status); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_paginated_surface_finish (void *abstract_surface) +{ + cairo_paginated_surface_t *surface = abstract_surface; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + if (! surface->base.is_clear || surface->page_num == 1) { + /* Bypass some of the sanity checking in cairo-surface.c, as we + * know that the surface is finished... + */ + status = _cairo_paginated_surface_show_page (surface); + } + + /* XXX We want to propagate any errors from destroy(), but those are not + * returned via the api. So we need to explicitly finish the target, + * and check the status afterwards. However, we can only call finish() + * on the target, if we own it. + */ + if (CAIRO_REFERENCE_COUNT_GET_VALUE (&surface->target->ref_count) == 1) + cairo_surface_finish (surface->target); + if (status == CAIRO_STATUS_SUCCESS) + status = cairo_surface_status (surface->target); + cairo_surface_destroy (surface->target); + + cairo_surface_finish (surface->recording_surface); + if (status == CAIRO_STATUS_SUCCESS) + status = cairo_surface_status (surface->recording_surface); + cairo_surface_destroy (surface->recording_surface); + + return status; +} + +static cairo_surface_t * +_cairo_paginated_surface_create_image_surface (void *abstract_surface, + int width, + int height) +{ + cairo_paginated_surface_t *surface = abstract_surface; + cairo_surface_t *image; + cairo_font_options_t options; + + image = _cairo_image_surface_create_with_content (surface->content, + width, + height); + + cairo_surface_get_font_options (&surface->base, &options); + _cairo_surface_set_font_options (image, &options); + + return image; +} + +static cairo_surface_t * +_cairo_paginated_surface_source (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_paginated_surface_t *surface = abstract_surface; + return _cairo_surface_get_source (surface->target, extents); +} + +static cairo_status_t +_cairo_paginated_surface_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + cairo_paginated_surface_t *surface = abstract_surface; + cairo_bool_t is_bounded; + cairo_surface_t *image; + cairo_status_t status; + cairo_rectangle_int_t extents; + + is_bounded = _cairo_surface_get_extents (surface->target, &extents); + if (! is_bounded) + return CAIRO_INT_STATUS_UNSUPPORTED; + + image = _cairo_paginated_surface_create_image_surface (surface, + extents.width, + extents.height); + + status = _cairo_recording_surface_replay (surface->recording_surface, image); + if (unlikely (status)) { + cairo_surface_destroy (image); + return status; + } + + *image_out = (cairo_image_surface_t*) image; + *image_extra = NULL; + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_paginated_surface_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *image_extra) +{ + cairo_surface_destroy (&image->base); +} + +static cairo_int_status_t +_paint_thumbnail_image (cairo_paginated_surface_t *surface, + int width, + int height) +{ + cairo_surface_pattern_t pattern; + cairo_rectangle_int_t extents; + double x_scale; + double y_scale; + cairo_surface_t *image = NULL; + cairo_surface_t *opaque = NULL; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + _cairo_surface_get_extents (surface->target, &extents); + x_scale = (double)width / extents.width; + y_scale = (double)height / extents.height; + + image = _cairo_paginated_surface_create_image_surface (surface, width, height); + cairo_surface_set_device_scale (image, x_scale, y_scale); + cairo_surface_set_device_offset (image, -extents.x*x_scale, -extents.y*y_scale); + status = _cairo_recording_surface_replay (surface->recording_surface, image); + if (unlikely (status)) + goto cleanup; + + /* flatten transparency */ + + opaque = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height); + if (unlikely (opaque->status)) { + status = opaque->status; + goto cleanup; + } + + status = _cairo_surface_paint (opaque, + CAIRO_OPERATOR_SOURCE, + &_cairo_pattern_white.base, + NULL); + if (unlikely (status)) + goto cleanup; + + _cairo_pattern_init_for_surface (&pattern, image); + pattern.base.filter = CAIRO_FILTER_NEAREST; + status = _cairo_surface_paint (opaque, CAIRO_OPERATOR_OVER, &pattern.base, NULL); + _cairo_pattern_fini (&pattern.base); + if (unlikely (status)) + goto cleanup; + + status = surface->backend->set_thumbnail_image (surface->target, (cairo_image_surface_t *)opaque); + + cleanup: + if (image) + cairo_surface_destroy (image); + if (opaque) + cairo_surface_destroy (opaque); + + return status; +} + +static cairo_int_status_t +_paint_fallback_image (cairo_paginated_surface_t *surface, + cairo_rectangle_int_t *rect) +{ + double x_scale = surface->base.x_fallback_resolution / surface->target->x_resolution; + double y_scale = surface->base.y_fallback_resolution / surface->target->y_resolution; + int x, y, width, height; + cairo_status_t status; + cairo_surface_t *image; + cairo_surface_pattern_t pattern; + cairo_clip_t *clip; + + x = rect->x; + y = rect->y; + width = rect->width; + height = rect->height; + image = _cairo_paginated_surface_create_image_surface (surface, + ceil (width * x_scale), + ceil (height * y_scale)); + cairo_surface_set_device_scale (image, x_scale, y_scale); + /* set_device_offset just sets the x0/y0 components of the matrix; + * so we have to do the scaling manually. */ + cairo_surface_set_device_offset (image, -x*x_scale, -y*y_scale); + + status = _cairo_recording_surface_replay (surface->recording_surface, image); + if (unlikely (status)) + goto CLEANUP_IMAGE; + + _cairo_pattern_init_for_surface (&pattern, image); + cairo_matrix_init (&pattern.base.matrix, + x_scale, 0, 0, y_scale, -x*x_scale, -y*y_scale); + /* the fallback should be rendered at native resolution, so disable + * filtering (if possible) to avoid introducing potential artifacts. */ + pattern.base.filter = CAIRO_FILTER_NEAREST; + + clip = _cairo_clip_intersect_rectangle (NULL, rect); + status = _cairo_surface_paint (surface->target, + CAIRO_OPERATOR_SOURCE, + &pattern.base, clip); + _cairo_clip_destroy (clip); + _cairo_pattern_fini (&pattern.base); + +CLEANUP_IMAGE: + cairo_surface_destroy (image); + + return status; +} + +static cairo_int_status_t +_paint_page (cairo_paginated_surface_t *surface) +{ + cairo_surface_t *analysis; + cairo_int_status_t status; + cairo_bool_t has_supported, has_page_fallback, has_finegrained_fallback; + unsigned int regions_id = 0; + cairo_bool_t replay_all; + + if (unlikely (surface->target->status)) + return surface->target->status; + + analysis = _cairo_analysis_surface_create (surface->target, TRUE); + if (unlikely (analysis->status)) + return _cairo_surface_set_error (surface->target, analysis->status); + + status = surface->backend->set_paginated_mode (surface->target, + CAIRO_PAGINATED_MODE_ANALYZE); + if (unlikely (status)) + goto FAIL; + + replay_all = FALSE; + if (surface->target->backend->analyze_recording_surface && + _cairo_recording_surface_has_tags (surface->recording_surface)) + { + replay_all = TRUE; + } + + status = _cairo_recording_surface_region_array_attach (surface->recording_surface, ®ions_id); + if (status) + goto FAIL; + + status = _cairo_recording_surface_replay_and_create_regions (surface->recording_surface, + regions_id, + NULL, analysis, FALSE, replay_all); + if (status) + goto FAIL; + + assert (analysis->status == CAIRO_STATUS_SUCCESS); + + if (surface->backend->set_bounding_box) { + cairo_box_t bbox; + + _cairo_analysis_surface_get_bounding_box (analysis, &bbox); + status = surface->backend->set_bounding_box (surface->target, &bbox); + if (unlikely (status)) + goto FAIL; + } + + if (surface->backend->set_fallback_images_required) { + cairo_bool_t has_fallbacks = _cairo_analysis_surface_has_unsupported (analysis); + + status = surface->backend->set_fallback_images_required (surface->target, + has_fallbacks); + if (unlikely (status)) + goto FAIL; + } + + /* Finer grained fallbacks are currently only supported for some + * surface types */ + if (surface->backend->supports_fine_grained_fallbacks != NULL && + surface->backend->supports_fine_grained_fallbacks (surface->target)) + { + has_supported = _cairo_analysis_surface_has_supported (analysis); + has_page_fallback = FALSE; + has_finegrained_fallback = _cairo_analysis_surface_has_unsupported (analysis); + } + else + { + if (_cairo_analysis_surface_has_unsupported (analysis)) { + has_supported = FALSE; + has_page_fallback = TRUE; + } else { + has_supported = TRUE; + has_page_fallback = FALSE; + } + has_finegrained_fallback = FALSE; + } + + status = surface->backend->set_paginated_mode (surface->target, + CAIRO_PAGINATED_MODE_RENDER); + if (unlikely (status)) + goto FAIL; + + if (has_supported) { + status = _cairo_recording_surface_replay_region (surface->recording_surface, + regions_id, + NULL, + surface->target, + CAIRO_RECORDING_REGION_NATIVE); + assert (status != CAIRO_INT_STATUS_UNSUPPORTED); + if (unlikely (status)) + goto FAIL; + } + + if (has_page_fallback) { + cairo_rectangle_int_t extents; + cairo_bool_t is_bounded; + + status = surface->backend->set_paginated_mode (surface->target, + CAIRO_PAGINATED_MODE_FALLBACK); + if (unlikely (status)) + goto FAIL; + + is_bounded = _cairo_surface_get_extents (surface->target, &extents); + if (! is_bounded) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto FAIL; + } + + status = _paint_fallback_image (surface, &extents); + if (unlikely (status)) + goto FAIL; + } + + if (has_finegrained_fallback) { + cairo_region_t *region; + int num_rects, i; + + status = surface->backend->set_paginated_mode (surface->target, + CAIRO_PAGINATED_MODE_FALLBACK); + if (unlikely (status)) + goto FAIL; + + region = _cairo_analysis_surface_get_unsupported (analysis); + + num_rects = cairo_region_num_rectangles (region); + for (i = 0; i < num_rects; i++) { + cairo_rectangle_int_t rect; + + cairo_region_get_rectangle (region, i, &rect); + status = _paint_fallback_image (surface, &rect); + if (unlikely (status)) + goto FAIL; + } + } + + if (surface->backend->requires_thumbnail_image) { + int width, height; + + if (surface->backend->requires_thumbnail_image (surface->target, &width, &height)) + _paint_thumbnail_image (surface, width, height); + } + + FAIL: + if (regions_id) + _cairo_recording_surface_region_array_remove (surface->recording_surface, regions_id); + + cairo_surface_destroy (analysis); + + return _cairo_surface_set_error (surface->target, status); +} + +static cairo_status_t +_start_page (cairo_paginated_surface_t *surface) +{ + if (surface->target->status) + return surface->target->status; + + if (! surface->backend->start_page) + return CAIRO_STATUS_SUCCESS; + + return _cairo_surface_set_error (surface->target, + surface->backend->start_page (surface->target)); +} + +static cairo_int_status_t +_cairo_paginated_surface_copy_page (void *abstract_surface) +{ + cairo_status_t status; + cairo_paginated_surface_t *surface = abstract_surface; + + status = _start_page (surface); + if (unlikely (status)) + return status; + + status = _paint_page (surface); + if (unlikely (status)) + return status; + + surface->page_num++; + + /* XXX: It might make sense to add some support here for calling + * cairo_surface_copy_page on the target surface. It would be an + * optimization for the output, but the interaction with image + * fallbacks gets tricky. For now, we just let the target see a + * show_page and we implement the copying by simply not destroying + * the recording-surface. */ + + cairo_surface_show_page (surface->target); + return cairo_surface_status (surface->target); +} + +static cairo_int_status_t +_cairo_paginated_surface_show_page (void *abstract_surface) +{ + cairo_status_t status; + cairo_paginated_surface_t *surface = abstract_surface; + + status = _start_page (surface); + if (unlikely (status)) + return status; + + status = _paint_page (surface); + if (unlikely (status)) + return status; + + cairo_surface_show_page (surface->target); + status = surface->target->status; + if (unlikely (status)) + return status; + + status = surface->recording_surface->status; + if (unlikely (status)) + return status; + + if (! surface->base.finished) { + cairo_surface_destroy (surface->recording_surface); + + surface->recording_surface = _create_recording_surface_for_target (surface->target, + surface->content); + status = surface->recording_surface->status; + if (unlikely (status)) + return status; + + surface->page_num++; + surface->base.is_clear = TRUE; + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_cairo_paginated_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle) +{ + cairo_paginated_surface_t *surface = abstract_surface; + + return _cairo_surface_get_extents (surface->target, rectangle); +} + +static void +_cairo_paginated_surface_get_font_options (void *abstract_surface, + cairo_font_options_t *options) +{ + cairo_paginated_surface_t *surface = abstract_surface; + + cairo_surface_get_font_options (surface->target, options); +} + +static cairo_int_status_t +_cairo_paginated_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_paginated_surface_t *surface = abstract_surface; + + return _cairo_surface_paint (surface->recording_surface, op, source, clip); +} + +static cairo_int_status_t +_cairo_paginated_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_paginated_surface_t *surface = abstract_surface; + + return _cairo_surface_mask (surface->recording_surface, op, source, mask, clip); +} + +static cairo_int_status_t +_cairo_paginated_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_paginated_surface_t *surface = abstract_surface; + + return _cairo_surface_stroke (surface->recording_surface, op, source, + path, style, + ctm, ctm_inverse, + tolerance, antialias, + clip); +} + +static cairo_int_status_t +_cairo_paginated_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_paginated_surface_t *surface = abstract_surface; + + return _cairo_surface_fill (surface->recording_surface, op, source, + path, fill_rule, + tolerance, antialias, + clip); +} + +static cairo_bool_t +_cairo_paginated_surface_has_show_text_glyphs (void *abstract_surface) +{ + cairo_paginated_surface_t *surface = abstract_surface; + + return cairo_surface_has_show_text_glyphs (surface->target); +} + +static cairo_int_status_t +_cairo_paginated_surface_show_text_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const char *utf8, + int utf8_len, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_paginated_surface_t *surface = abstract_surface; + + return _cairo_surface_show_text_glyphs (surface->recording_surface, op, source, + utf8, utf8_len, + glyphs, num_glyphs, + clusters, num_clusters, + cluster_flags, + scaled_font, + clip); +} + +static const char ** +_cairo_paginated_surface_get_supported_mime_types (void *abstract_surface) +{ + cairo_paginated_surface_t *surface = abstract_surface; + + if (surface->target->backend->get_supported_mime_types) + return surface->target->backend->get_supported_mime_types (surface->target); + + return NULL; +} + +static cairo_int_status_t +_cairo_paginated_surface_tag (void *abstract_surface, + cairo_bool_t begin, + const char *tag_name, + const char *attributes) +{ + cairo_paginated_surface_t *surface = abstract_surface; + + return _cairo_surface_tag (surface->recording_surface, + begin, tag_name, attributes); +} + +static cairo_bool_t +_cairo_paginated_surface_supports_color_glyph (void *abstract_surface, + cairo_scaled_font_t *scaled_font, + unsigned long glyph_index) +{ + return TRUE; +} + +static cairo_surface_t * +_cairo_paginated_surface_snapshot (void *abstract_other) +{ + cairo_paginated_surface_t *other = abstract_other; + + return other->recording_surface->backend->snapshot (other->recording_surface); +} + +static cairo_t * +_cairo_paginated_context_create (void *target) +{ + cairo_paginated_surface_t *surface = target; + + if (_cairo_surface_is_subsurface (&surface->base)) + surface = (cairo_paginated_surface_t *) + _cairo_surface_subsurface_get_target (&surface->base); + + return surface->recording_surface->backend->create_context (target); +} + +static const cairo_surface_backend_t cairo_paginated_surface_backend = { + CAIRO_INTERNAL_SURFACE_TYPE_PAGINATED, + _cairo_paginated_surface_finish, + + _cairo_paginated_context_create, + + _cairo_paginated_surface_create_similar, + NULL, /* create similar image */ + NULL, /* map to image */ + NULL, /* unmap image */ + + _cairo_paginated_surface_source, + _cairo_paginated_surface_acquire_source_image, + _cairo_paginated_surface_release_source_image, + _cairo_paginated_surface_snapshot, + + _cairo_paginated_surface_copy_page, + _cairo_paginated_surface_show_page, + + _cairo_paginated_surface_get_extents, + _cairo_paginated_surface_get_font_options, + + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + + _cairo_paginated_surface_paint, + _cairo_paginated_surface_mask, + _cairo_paginated_surface_stroke, + _cairo_paginated_surface_fill, + NULL, /* fill_stroke */ + NULL, /* show_glyphs */ + _cairo_paginated_surface_has_show_text_glyphs, + _cairo_paginated_surface_show_text_glyphs, + _cairo_paginated_surface_get_supported_mime_types, + _cairo_paginated_surface_tag, + _cairo_paginated_surface_supports_color_glyph, +}; diff --git a/local/recipes/libs/cairo/source/src/cairo-path-bounds.c b/local/recipes/libs/cairo/source/src/cairo-path-bounds.c new file mode 100644 index 0000000000..ac85f27bee --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-path-bounds.c @@ -0,0 +1,230 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2003 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" +#include "cairo-box-inline.h" +#include "cairo-error-private.h" +#include "cairo-path-fixed-private.h" + +typedef struct _cairo_path_bounder { + cairo_point_t current_point; + cairo_bool_t has_extents; + cairo_box_t extents; +} cairo_path_bounder_t; + +static cairo_status_t +_cairo_path_bounder_move_to (void *closure, + const cairo_point_t *point) +{ + cairo_path_bounder_t *bounder = closure; + + bounder->current_point = *point; + + if (likely (bounder->has_extents)) { + _cairo_box_add_point (&bounder->extents, point); + } else { + bounder->has_extents = TRUE; + _cairo_box_set (&bounder->extents, point, point); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_path_bounder_line_to (void *closure, + const cairo_point_t *point) +{ + cairo_path_bounder_t *bounder = closure; + + bounder->current_point = *point; + _cairo_box_add_point (&bounder->extents, point); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_path_bounder_curve_to (void *closure, + const cairo_point_t *b, + const cairo_point_t *c, + const cairo_point_t *d) +{ + cairo_path_bounder_t *bounder = closure; + + _cairo_box_add_curve_to (&bounder->extents, + &bounder->current_point, + b, c, d); + bounder->current_point = *d; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_path_bounder_close_path (void *closure) +{ + return CAIRO_STATUS_SUCCESS; +} + +cairo_bool_t +_cairo_path_bounder_extents (const cairo_path_fixed_t *path, + cairo_box_t *extents) +{ + cairo_path_bounder_t bounder; + cairo_status_t status; + + bounder.has_extents = FALSE; + status = _cairo_path_fixed_interpret (path, + _cairo_path_bounder_move_to, + _cairo_path_bounder_line_to, + _cairo_path_bounder_curve_to, + _cairo_path_bounder_close_path, + &bounder); + assert (!status); + + if (bounder.has_extents) + *extents = bounder.extents; + + return bounder.has_extents; +} + +void +_cairo_path_fixed_approximate_clip_extents (const cairo_path_fixed_t *path, + cairo_rectangle_int_t *extents) +{ + _cairo_path_fixed_approximate_fill_extents (path, extents); +} + +void +_cairo_path_fixed_approximate_fill_extents (const cairo_path_fixed_t *path, + cairo_rectangle_int_t *extents) +{ + _cairo_path_fixed_fill_extents (path, CAIRO_FILL_RULE_WINDING, 0, extents); +} + +void +_cairo_path_fixed_fill_extents (const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_rectangle_int_t *extents) +{ + if (path->extents.p1.x < path->extents.p2.x && + path->extents.p1.y < path->extents.p2.y) { + _cairo_box_round_to_rectangle (&path->extents, extents); + } else { + extents->x = extents->y = 0; + extents->width = extents->height = 0; + } +} + +/* Adjusts the fill extents (above) by the device-space pen. */ +void +_cairo_path_fixed_approximate_stroke_extents (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + cairo_bool_t is_vector, + cairo_rectangle_int_t *extents) +{ + if (path->has_extents) { + cairo_box_t box_extents; + double dx, dy; + + _cairo_stroke_style_max_distance_from_path (style, path, ctm, &dx, &dy); + if (is_vector) + { + /* When calculating extents for vector surfaces, ensure lines thinner + * than the fixed point resolution are not optimized away. */ + double min = _cairo_fixed_to_double (CAIRO_FIXED_EPSILON*2); + if (dx < min) + dx = min; + + if (dy < min) + dy = min; + } + + box_extents = path->extents; + box_extents.p1.x -= _cairo_fixed_from_double (dx); + box_extents.p1.y -= _cairo_fixed_from_double (dy); + box_extents.p2.x += _cairo_fixed_from_double (dx); + box_extents.p2.y += _cairo_fixed_from_double (dy); + + _cairo_box_round_to_rectangle (&box_extents, extents); + } else { + extents->x = extents->y = 0; + extents->width = extents->height = 0; + } +} + +cairo_status_t +_cairo_path_fixed_stroke_extents (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_rectangle_int_t *extents) +{ + cairo_polygon_t polygon; + cairo_status_t status; + cairo_stroke_style_t style; + + /* When calculating extents for vector surfaces, ensure lines thinner + * than one point are not optimized away. */ + double min_line_width = _cairo_matrix_transformed_circle_major_axis (ctm_inverse, 1.0); + if (stroke_style->line_width < min_line_width) + { + style = *stroke_style; + style.line_width = min_line_width; + stroke_style = &style; + } + + _cairo_polygon_init (&polygon, NULL, 0); + status = _cairo_path_fixed_stroke_to_polygon (path, + stroke_style, + ctm, ctm_inverse, + tolerance, + &polygon); + _cairo_box_round_to_rectangle (&polygon.extents, extents); + _cairo_polygon_fini (&polygon); + + return status; +} + +cairo_bool_t +_cairo_path_fixed_extents (const cairo_path_fixed_t *path, + cairo_box_t *box) +{ + *box = path->extents; + return path->has_extents; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-path-fill.c b/local/recipes/libs/cairo/source/src/cairo-path-fill.c new file mode 100644 index 0000000000..d0c8551dc7 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-path-fill.c @@ -0,0 +1,349 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" +#include "cairo-boxes-private.h" +#include "cairo-error-private.h" +#include "cairo-path-fixed-private.h" +#include "cairo-region-private.h" +#include "cairo-traps-private.h" + +typedef struct cairo_filler { + cairo_polygon_t *polygon; + double tolerance; + + cairo_box_t limit; + cairo_bool_t has_limits; + + cairo_point_t current_point; + cairo_point_t last_move_to; +} cairo_filler_t; + +static cairo_status_t +_cairo_filler_line_to (void *closure, + const cairo_point_t *point) +{ + cairo_filler_t *filler = closure; + cairo_status_t status; + + status = _cairo_polygon_add_external_edge (filler->polygon, + &filler->current_point, + point); + + filler->current_point = *point; + + return status; +} + +static cairo_status_t +_cairo_filler_add_point (void *closure, + const cairo_point_t *point, + const cairo_slope_t *tangent) +{ + return _cairo_filler_line_to (closure, point); +}; + +static cairo_status_t +_cairo_filler_close (void *closure) +{ + cairo_filler_t *filler = closure; + + /* close the subpath */ + return _cairo_filler_line_to (closure, &filler->last_move_to); +} + +static cairo_status_t +_cairo_filler_move_to (void *closure, + const cairo_point_t *point) +{ + cairo_filler_t *filler = closure; + cairo_status_t status; + + /* close current subpath */ + status = _cairo_filler_close (closure); + if (unlikely (status)) + return status; + + /* make sure that the closure represents a degenerate path */ + filler->current_point = *point; + filler->last_move_to = *point; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_filler_curve_to (void *closure, + const cairo_point_t *p1, + const cairo_point_t *p2, + const cairo_point_t *p3) +{ + cairo_filler_t *filler = closure; + cairo_spline_t spline; + + if (filler->has_limits) { + if (! _cairo_spline_intersects (&filler->current_point, p1, p2, p3, + &filler->limit)) + return _cairo_filler_line_to (filler, p3); + } + + if (! _cairo_spline_init (&spline, + _cairo_filler_add_point, filler, + &filler->current_point, p1, p2, p3)) + { + return _cairo_filler_line_to (closure, p3); + } + + return _cairo_spline_decompose (&spline, filler->tolerance); +} + +cairo_status_t +_cairo_path_fixed_fill_to_polygon (const cairo_path_fixed_t *path, + double tolerance, + cairo_polygon_t *polygon) +{ + cairo_filler_t filler; + cairo_status_t status; + + filler.polygon = polygon; + filler.tolerance = tolerance; + + filler.has_limits = FALSE; + if (polygon->num_limits) { + filler.has_limits = TRUE; + filler.limit = polygon->limit; + } + + /* make sure that the closure represents a degenerate path */ + filler.current_point.x = 0; + filler.current_point.y = 0; + filler.last_move_to = filler.current_point; + + status = _cairo_path_fixed_interpret (path, + _cairo_filler_move_to, + _cairo_filler_line_to, + _cairo_filler_curve_to, + _cairo_filler_close, + &filler); + if (unlikely (status)) + return status; + + return _cairo_filler_close (&filler); +} + +typedef struct cairo_filler_rectilinear_aligned { + cairo_polygon_t *polygon; + + cairo_point_t current_point; + cairo_point_t last_move_to; +} cairo_filler_ra_t; + +static cairo_status_t +_cairo_filler_ra_line_to (void *closure, + const cairo_point_t *point) +{ + cairo_filler_ra_t *filler = closure; + cairo_status_t status; + cairo_point_t p; + + p.x = _cairo_fixed_round_down (point->x); + p.y = _cairo_fixed_round_down (point->y); + + status = _cairo_polygon_add_external_edge (filler->polygon, + &filler->current_point, + &p); + + filler->current_point = p; + + return status; +} + +static cairo_status_t +_cairo_filler_ra_close (void *closure) +{ + cairo_filler_ra_t *filler = closure; + return _cairo_filler_ra_line_to (closure, &filler->last_move_to); +} + +static cairo_status_t +_cairo_filler_ra_move_to (void *closure, + const cairo_point_t *point) +{ + cairo_filler_ra_t *filler = closure; + cairo_status_t status; + cairo_point_t p; + + /* close current subpath */ + status = _cairo_filler_ra_close (closure); + if (unlikely (status)) + return status; + + p.x = _cairo_fixed_round_down (point->x); + p.y = _cairo_fixed_round_down (point->y); + + /* make sure that the closure represents a degenerate path */ + filler->current_point = p; + filler->last_move_to = p; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_path_fixed_fill_rectilinear_to_polygon (const cairo_path_fixed_t *path, + cairo_antialias_t antialias, + cairo_polygon_t *polygon) +{ + cairo_filler_ra_t filler; + cairo_status_t status; + + if (antialias != CAIRO_ANTIALIAS_NONE) + return _cairo_path_fixed_fill_to_polygon (path, 0., polygon); + + filler.polygon = polygon; + + /* make sure that the closure represents a degenerate path */ + filler.current_point.x = 0; + filler.current_point.y = 0; + filler.last_move_to = filler.current_point; + + status = _cairo_path_fixed_interpret_flat (path, + _cairo_filler_ra_move_to, + _cairo_filler_ra_line_to, + _cairo_filler_ra_close, + &filler, + 0.); + if (unlikely (status)) + return status; + + return _cairo_filler_ra_close (&filler); +} + +cairo_status_t +_cairo_path_fixed_fill_to_traps (const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_traps_t *traps) +{ + cairo_polygon_t polygon; + cairo_status_t status; + + if (_cairo_path_fixed_fill_is_empty (path)) + return CAIRO_STATUS_SUCCESS; + + _cairo_polygon_init (&polygon, traps->limits, traps->num_limits); + status = _cairo_path_fixed_fill_to_polygon (path, tolerance, &polygon); + if (unlikely (status || polygon.num_edges == 0)) + goto CLEANUP; + + status = _cairo_bentley_ottmann_tessellate_polygon (traps, + &polygon, fill_rule); + + CLEANUP: + _cairo_polygon_fini (&polygon); + return status; +} + +static cairo_status_t +_cairo_path_fixed_fill_rectilinear_tessellate_to_boxes (const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias, + cairo_boxes_t *boxes) +{ + cairo_polygon_t polygon; + cairo_status_t status; + + _cairo_polygon_init (&polygon, boxes->limits, boxes->num_limits); + boxes->num_limits = 0; + + /* tolerance will be ignored as the path is rectilinear */ + status = _cairo_path_fixed_fill_rectilinear_to_polygon (path, antialias, &polygon); + if (likely (status == CAIRO_STATUS_SUCCESS)) { + status = + _cairo_bentley_ottmann_tessellate_rectilinear_polygon_to_boxes (&polygon, + fill_rule, + boxes); + } + + _cairo_polygon_fini (&polygon); + + return status; +} + +cairo_status_t +_cairo_path_fixed_fill_rectilinear_to_boxes (const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias, + cairo_boxes_t *boxes) +{ + cairo_path_fixed_iter_t iter; + cairo_status_t status; + cairo_box_t box; + + if (_cairo_path_fixed_is_box (path, &box)) + return _cairo_boxes_add (boxes, antialias, &box); + + _cairo_path_fixed_iter_init (&iter, path); + while (_cairo_path_fixed_iter_is_fill_box (&iter, &box)) { + if (box.p1.y == box.p2.y || box.p1.x == box.p2.x) + continue; + + if (box.p1.y > box.p2.y) { + cairo_fixed_t t; + + t = box.p1.y; + box.p1.y = box.p2.y; + box.p2.y = t; + + t = box.p1.x; + box.p1.x = box.p2.x; + box.p2.x = t; + } + + status = _cairo_boxes_add (boxes, antialias, &box); + if (unlikely (status)) + return status; + } + + if (_cairo_path_fixed_iter_at_end (&iter)) + return _cairo_bentley_ottmann_tessellate_boxes (boxes, fill_rule, boxes); + + /* path is not rectangular, try extracting clipped rectilinear edges */ + _cairo_boxes_clear (boxes); + return _cairo_path_fixed_fill_rectilinear_tessellate_to_boxes (path, + fill_rule, + antialias, + boxes); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-path-fixed-private.h b/local/recipes/libs/cairo/source/src/cairo-path-fixed-private.h new file mode 100644 index 0000000000..e499063444 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-path-fixed-private.h @@ -0,0 +1,206 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_PATH_FIXED_PRIVATE_H +#define CAIRO_PATH_FIXED_PRIVATE_H + +#include "cairo-types-private.h" +#include "cairo-compiler-private.h" +#include "cairo-list-private.h" + +#define WATCH_PATH 0 +#if WATCH_PATH +#include +#endif + +enum cairo_path_op { + CAIRO_PATH_OP_MOVE_TO = 0, + CAIRO_PATH_OP_LINE_TO = 1, + CAIRO_PATH_OP_CURVE_TO = 2, + CAIRO_PATH_OP_CLOSE_PATH = 3 +}; + +/* we want to make sure a single byte is used for the enum */ +typedef char cairo_path_op_t; + +/* make _cairo_path_fixed fit into ~512 bytes -- about 50 items */ +#define CAIRO_PATH_BUF_SIZE ((512 - sizeof (cairo_path_buf_t)) \ + / (2 * sizeof (cairo_point_t) + sizeof (cairo_path_op_t))) + +#define cairo_path_head(path__) (&(path__)->buf.base) +#define cairo_path_tail(path__) cairo_path_buf_prev (cairo_path_head (path__)) + +#define cairo_path_buf_next(pos__) \ + cairo_list_entry ((pos__)->link.next, cairo_path_buf_t, link) +#define cairo_path_buf_prev(pos__) \ + cairo_list_entry ((pos__)->link.prev, cairo_path_buf_t, link) + +#define cairo_path_foreach_buf_start(pos__, path__) \ + pos__ = cairo_path_head (path__); do +#define cairo_path_foreach_buf_end(pos__, path__) \ + while ((pos__ = cairo_path_buf_next (pos__)) != cairo_path_head (path__)) + + +typedef struct _cairo_path_buf { + cairo_list_t link; + unsigned int num_ops; + unsigned int size_ops; + unsigned int num_points; + unsigned int size_points; + + cairo_path_op_t *op; + cairo_point_t *points; +} cairo_path_buf_t; + +typedef struct _cairo_path_buf_fixed { + cairo_path_buf_t base; + + cairo_path_op_t op[CAIRO_PATH_BUF_SIZE]; + cairo_point_t points[2 * CAIRO_PATH_BUF_SIZE]; +} cairo_path_buf_fixed_t; + +/* + NOTES: + has_curve_to => !stroke_is_rectilinear + fill_is_rectilinear => stroke_is_rectilinear + fill_is_empty => fill_is_rectilinear + fill_maybe_region => fill_is_rectilinear +*/ +struct _cairo_path_fixed { + cairo_point_t last_move_point; + cairo_point_t current_point; + unsigned int has_current_point : 1; + unsigned int needs_move_to : 1; + unsigned int has_extents : 1; + unsigned int has_curve_to : 1; + unsigned int stroke_is_rectilinear : 1; + unsigned int fill_is_rectilinear : 1; + unsigned int fill_maybe_region : 1; + unsigned int fill_is_empty : 1; + + cairo_box_t extents; + + cairo_path_buf_fixed_t buf; +}; + +cairo_private void +_cairo_path_fixed_translate (cairo_path_fixed_t *path, + cairo_fixed_t offx, + cairo_fixed_t offy); + +cairo_private cairo_status_t +_cairo_path_fixed_append (cairo_path_fixed_t *path, + const cairo_path_fixed_t *other, + cairo_fixed_t tx, + cairo_fixed_t ty); + +cairo_private uintptr_t +_cairo_path_fixed_hash (const cairo_path_fixed_t *path); + +cairo_private unsigned long +_cairo_path_fixed_size (const cairo_path_fixed_t *path); + +cairo_private cairo_bool_t +_cairo_path_fixed_equal (const cairo_path_fixed_t *a, + const cairo_path_fixed_t *b); + +typedef struct _cairo_path_fixed_iter { + const cairo_path_buf_t *first; + const cairo_path_buf_t *buf; + unsigned int n_op; + unsigned int n_point; +} cairo_path_fixed_iter_t; + +cairo_private void +_cairo_path_fixed_iter_init (cairo_path_fixed_iter_t *iter, + const cairo_path_fixed_t *path); + +cairo_private cairo_bool_t +_cairo_path_fixed_iter_is_fill_box (cairo_path_fixed_iter_t *_iter, + cairo_box_t *box); + +cairo_private cairo_bool_t +_cairo_path_fixed_iter_at_end (const cairo_path_fixed_iter_t *iter); + +static inline cairo_bool_t +_cairo_path_fixed_fill_is_empty (const cairo_path_fixed_t *path) +{ + return path->fill_is_empty; +} + +static inline cairo_bool_t +_cairo_path_fixed_fill_is_rectilinear (const cairo_path_fixed_t *path) +{ + if (! path->fill_is_rectilinear) + return 0; + + if (! path->has_current_point || path->needs_move_to) + return 1; + + /* check whether the implicit close preserves the rectilinear property */ + return path->current_point.x == path->last_move_point.x || + path->current_point.y == path->last_move_point.y; +} + +static inline cairo_bool_t +_cairo_path_fixed_stroke_is_rectilinear (const cairo_path_fixed_t *path) +{ + return path->stroke_is_rectilinear; +} + +static inline cairo_bool_t +_cairo_path_fixed_fill_maybe_region (const cairo_path_fixed_t *path) +{ + if (! path->fill_maybe_region) + return 0; + + if (! path->has_current_point || path->needs_move_to) + return 1; + + /* check whether the implicit close preserves the rectilinear property + * (the integer point property is automatically preserved) + */ + return path->current_point.x == path->last_move_point.x || + path->current_point.y == path->last_move_point.y; +} + +cairo_private cairo_bool_t +_cairo_path_fixed_is_stroke_box (const cairo_path_fixed_t *path, + cairo_box_t *box); + +cairo_private cairo_bool_t +_cairo_path_fixed_is_simple_quad (const cairo_path_fixed_t *path); + +#endif /* CAIRO_PATH_FIXED_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-path-fixed.c b/local/recipes/libs/cairo/source/src/cairo-path-fixed.c new file mode 100644 index 0000000000..ca759447ec --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-path-fixed.c @@ -0,0 +1,1597 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" + +#include "cairo-box-inline.h" +#include "cairo-error-private.h" +#include "cairo-list-inline.h" +#include "cairo-path-fixed-private.h" +#include "cairo-slope-private.h" + +static cairo_status_t +_cairo_path_fixed_add (cairo_path_fixed_t *path, + cairo_path_op_t op, + const cairo_point_t *points, + int num_points); + +static void +_cairo_path_fixed_add_buf (cairo_path_fixed_t *path, + cairo_path_buf_t *buf); + +static cairo_path_buf_t * +_cairo_path_buf_create (int size_ops, int size_points); + +static void +_cairo_path_buf_destroy (cairo_path_buf_t *buf); + +static void +_cairo_path_buf_add_op (cairo_path_buf_t *buf, + cairo_path_op_t op); + +static void +_cairo_path_buf_add_points (cairo_path_buf_t *buf, + const cairo_point_t *points, + int num_points); + +void +_cairo_path_fixed_init (cairo_path_fixed_t *path) +{ + VG (VALGRIND_MAKE_MEM_UNDEFINED (path, sizeof (cairo_path_fixed_t))); + + cairo_list_init (&path->buf.base.link); + + path->buf.base.num_ops = 0; + path->buf.base.num_points = 0; + path->buf.base.size_ops = ARRAY_LENGTH (path->buf.op); + path->buf.base.size_points = ARRAY_LENGTH (path->buf.points); + path->buf.base.op = path->buf.op; + path->buf.base.points = path->buf.points; + + path->current_point.x = 0; + path->current_point.y = 0; + path->last_move_point = path->current_point; + + path->has_current_point = FALSE; + path->needs_move_to = TRUE; + path->has_extents = FALSE; + path->has_curve_to = FALSE; + path->stroke_is_rectilinear = TRUE; + path->fill_is_rectilinear = TRUE; + path->fill_maybe_region = TRUE; + path->fill_is_empty = TRUE; + + path->extents.p1.x = path->extents.p1.y = 0; + path->extents.p2.x = path->extents.p2.y = 0; +} + +cairo_status_t +_cairo_path_fixed_init_copy (cairo_path_fixed_t *path, + const cairo_path_fixed_t *other) +{ + cairo_path_buf_t *buf, *other_buf; + unsigned int num_points, num_ops; + + VG (VALGRIND_MAKE_MEM_UNDEFINED (path, sizeof (cairo_path_fixed_t))); + + cairo_list_init (&path->buf.base.link); + + path->buf.base.op = path->buf.op; + path->buf.base.points = path->buf.points; + path->buf.base.size_ops = ARRAY_LENGTH (path->buf.op); + path->buf.base.size_points = ARRAY_LENGTH (path->buf.points); + + path->current_point = other->current_point; + path->last_move_point = other->last_move_point; + + path->has_current_point = other->has_current_point; + path->needs_move_to = other->needs_move_to; + path->has_extents = other->has_extents; + path->has_curve_to = other->has_curve_to; + path->stroke_is_rectilinear = other->stroke_is_rectilinear; + path->fill_is_rectilinear = other->fill_is_rectilinear; + path->fill_maybe_region = other->fill_maybe_region; + path->fill_is_empty = other->fill_is_empty; + + path->extents = other->extents; + + path->buf.base.num_ops = other->buf.base.num_ops; + path->buf.base.num_points = other->buf.base.num_points; + memcpy (path->buf.op, other->buf.base.op, + other->buf.base.num_ops * sizeof (other->buf.op[0])); + memcpy (path->buf.points, other->buf.points, + other->buf.base.num_points * sizeof (other->buf.points[0])); + + num_points = num_ops = 0; + for (other_buf = cairo_path_buf_next (cairo_path_head (other)); + other_buf != cairo_path_head (other); + other_buf = cairo_path_buf_next (other_buf)) + { + num_ops += other_buf->num_ops; + num_points += other_buf->num_points; + } + + if (num_ops) { + buf = _cairo_path_buf_create (num_ops, num_points); + if (unlikely (buf == NULL)) { + _cairo_path_fixed_fini (path); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + for (other_buf = cairo_path_buf_next (cairo_path_head (other)); + other_buf != cairo_path_head (other); + other_buf = cairo_path_buf_next (other_buf)) + { + memcpy (buf->op + buf->num_ops, other_buf->op, + other_buf->num_ops * sizeof (buf->op[0])); + buf->num_ops += other_buf->num_ops; + + memcpy (buf->points + buf->num_points, other_buf->points, + other_buf->num_points * sizeof (buf->points[0])); + buf->num_points += other_buf->num_points; + } + + _cairo_path_fixed_add_buf (path, buf); + } + + return CAIRO_STATUS_SUCCESS; +} + +uintptr_t +_cairo_path_fixed_hash (const cairo_path_fixed_t *path) +{ + uintptr_t hash = _CAIRO_HASH_INIT_VALUE; + const cairo_path_buf_t *buf; + unsigned int count; + + count = 0; + cairo_path_foreach_buf_start (buf, path) { + hash = _cairo_hash_bytes (hash, buf->op, + buf->num_ops * sizeof (buf->op[0])); + count += buf->num_ops; + } cairo_path_foreach_buf_end (buf, path); + hash = _cairo_hash_bytes (hash, &count, sizeof (count)); + + count = 0; + cairo_path_foreach_buf_start (buf, path) { + hash = _cairo_hash_bytes (hash, buf->points, + buf->num_points * sizeof (buf->points[0])); + count += buf->num_points; + } cairo_path_foreach_buf_end (buf, path); + hash = _cairo_hash_bytes (hash, &count, sizeof (count)); + + return hash; +} + +unsigned long +_cairo_path_fixed_size (const cairo_path_fixed_t *path) +{ + const cairo_path_buf_t *buf; + int num_points, num_ops; + + num_ops = num_points = 0; + cairo_path_foreach_buf_start (buf, path) { + num_ops += buf->num_ops; + num_points += buf->num_points; + } cairo_path_foreach_buf_end (buf, path); + + return num_ops * sizeof (buf->op[0]) + + num_points * sizeof (buf->points[0]); +} + +cairo_bool_t +_cairo_path_fixed_equal (const cairo_path_fixed_t *a, + const cairo_path_fixed_t *b) +{ + const cairo_path_buf_t *buf_a, *buf_b; + const cairo_path_op_t *ops_a, *ops_b; + const cairo_point_t *points_a, *points_b; + int num_points_a, num_ops_a; + int num_points_b, num_ops_b; + + if (a == b) + return TRUE; + + /* use the flags to quickly differentiate based on contents */ + if (a->has_curve_to != b->has_curve_to) + { + return FALSE; + } + + if (a->extents.p1.x != b->extents.p1.x || + a->extents.p1.y != b->extents.p1.y || + a->extents.p2.x != b->extents.p2.x || + a->extents.p2.y != b->extents.p2.y) + { + return FALSE; + } + + num_ops_a = num_points_a = 0; + cairo_path_foreach_buf_start (buf_a, a) { + num_ops_a += buf_a->num_ops; + num_points_a += buf_a->num_points; + } cairo_path_foreach_buf_end (buf_a, a); + + num_ops_b = num_points_b = 0; + cairo_path_foreach_buf_start (buf_b, b) { + num_ops_b += buf_b->num_ops; + num_points_b += buf_b->num_points; + } cairo_path_foreach_buf_end (buf_b, b); + + if (num_ops_a == 0 && num_ops_b == 0) + return TRUE; + + if (num_ops_a != num_ops_b || num_points_a != num_points_b) + return FALSE; + + buf_a = cairo_path_head (a); + num_points_a = buf_a->num_points; + num_ops_a = buf_a->num_ops; + ops_a = buf_a->op; + points_a = buf_a->points; + + buf_b = cairo_path_head (b); + num_points_b = buf_b->num_points; + num_ops_b = buf_b->num_ops; + ops_b = buf_b->op; + points_b = buf_b->points; + + while (TRUE) { + int num_ops = MIN (num_ops_a, num_ops_b); + int num_points = MIN (num_points_a, num_points_b); + + if (memcmp (ops_a, ops_b, num_ops * sizeof (cairo_path_op_t))) + return FALSE; + if (memcmp (points_a, points_b, num_points * sizeof (cairo_point_t))) + return FALSE; + + num_ops_a -= num_ops; + ops_a += num_ops; + num_points_a -= num_points; + points_a += num_points; + if (num_ops_a == 0 || num_points_a == 0) { + if (num_ops_a || num_points_a) + return FALSE; + + buf_a = cairo_path_buf_next (buf_a); + if (buf_a == cairo_path_head (a)) + break; + + num_points_a = buf_a->num_points; + num_ops_a = buf_a->num_ops; + ops_a = buf_a->op; + points_a = buf_a->points; + } + + num_ops_b -= num_ops; + ops_b += num_ops; + num_points_b -= num_points; + points_b += num_points; + if (num_ops_b == 0 || num_points_b == 0) { + if (num_ops_b || num_points_b) + return FALSE; + + buf_b = cairo_path_buf_next (buf_b); + if (buf_b == cairo_path_head (b)) + break; + + num_points_b = buf_b->num_points; + num_ops_b = buf_b->num_ops; + ops_b = buf_b->op; + points_b = buf_b->points; + } + } + + return TRUE; +} + +cairo_path_fixed_t * +_cairo_path_fixed_create (void) +{ + cairo_path_fixed_t *path; + + path = _cairo_calloc (sizeof (cairo_path_fixed_t)); + if (!path) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return NULL; + } + + _cairo_path_fixed_init (path); + return path; +} + +void +_cairo_path_fixed_fini (cairo_path_fixed_t *path) +{ + cairo_path_buf_t *buf; + + buf = cairo_path_buf_next (cairo_path_head (path)); + while (buf != cairo_path_head (path)) { + cairo_path_buf_t *this = buf; + buf = cairo_path_buf_next (buf); + _cairo_path_buf_destroy (this); + } + + VG (VALGRIND_MAKE_MEM_UNDEFINED (path, sizeof (cairo_path_fixed_t))); +} + +void +_cairo_path_fixed_destroy (cairo_path_fixed_t *path) +{ + _cairo_path_fixed_fini (path); + free (path); +} + +static cairo_path_op_t +_cairo_path_fixed_last_op (cairo_path_fixed_t *path) +{ + cairo_path_buf_t *buf; + + buf = cairo_path_tail (path); + assert (buf->num_ops != 0); + + return buf->op[buf->num_ops - 1]; +} + +static inline const cairo_point_t * +_cairo_path_fixed_penultimate_point (cairo_path_fixed_t *path) +{ + cairo_path_buf_t *buf; + + buf = cairo_path_tail (path); + if (likely (buf->num_points >= 2)) { + return &buf->points[buf->num_points - 2]; + } else { + cairo_path_buf_t *prev_buf = cairo_path_buf_prev (buf); + + assert (prev_buf->num_points >= 2 - buf->num_points); + return &prev_buf->points[prev_buf->num_points - (2 - buf->num_points)]; + } +} + +static void +_cairo_path_fixed_drop_line_to (cairo_path_fixed_t *path) +{ + cairo_path_buf_t *buf; + + assert (_cairo_path_fixed_last_op (path) == CAIRO_PATH_OP_LINE_TO); + + buf = cairo_path_tail (path); + buf->num_points--; + buf->num_ops--; +} + +cairo_status_t +_cairo_path_fixed_move_to (cairo_path_fixed_t *path, + cairo_fixed_t x, + cairo_fixed_t y) +{ + _cairo_path_fixed_new_sub_path (path); + + path->has_current_point = TRUE; + path->current_point.x = x; + path->current_point.y = y; + path->last_move_point = path->current_point; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_path_fixed_move_to_apply (cairo_path_fixed_t *path) +{ + if (likely (! path->needs_move_to)) + return CAIRO_STATUS_SUCCESS; + + path->needs_move_to = FALSE; + + if (path->has_extents) { + _cairo_box_add_point (&path->extents, &path->current_point); + } else { + _cairo_box_set (&path->extents, &path->current_point, &path->current_point); + path->has_extents = TRUE; + } + + if (path->fill_maybe_region) { + path->fill_maybe_region = _cairo_fixed_is_integer (path->current_point.x) && + _cairo_fixed_is_integer (path->current_point.y); + } + + path->last_move_point = path->current_point; + + return _cairo_path_fixed_add (path, CAIRO_PATH_OP_MOVE_TO, &path->current_point, 1); +} + +void +_cairo_path_fixed_new_sub_path (cairo_path_fixed_t *path) +{ + if (! path->needs_move_to) { + /* If the current subpath doesn't need_move_to, it contains at least one command */ + if (path->fill_is_rectilinear) { + /* Implicitly close for fill */ + path->fill_is_rectilinear = path->current_point.x == path->last_move_point.x || + path->current_point.y == path->last_move_point.y; + path->fill_maybe_region &= path->fill_is_rectilinear; + } + path->needs_move_to = TRUE; + } + + path->has_current_point = FALSE; +} + +cairo_status_t +_cairo_path_fixed_rel_move_to (cairo_path_fixed_t *path, + cairo_fixed_t dx, + cairo_fixed_t dy) +{ + if (unlikely (! path->has_current_point)) + return _cairo_error (CAIRO_STATUS_NO_CURRENT_POINT); + + return _cairo_path_fixed_move_to (path, + path->current_point.x + dx, + path->current_point.y + dy); + +} + +cairo_status_t +_cairo_path_fixed_line_to (cairo_path_fixed_t *path, + cairo_fixed_t x, + cairo_fixed_t y) +{ + cairo_status_t status; + cairo_point_t point; + + point.x = x; + point.y = y; + + /* When there is not yet a current point, the line_to operation + * becomes a move_to instead. Note: We have to do this by + * explicitly calling into _cairo_path_fixed_move_to to ensure + * that the last_move_point state is updated properly. + */ + if (! path->has_current_point) + return _cairo_path_fixed_move_to (path, point.x, point.y); + + status = _cairo_path_fixed_move_to_apply (path); + if (unlikely (status)) + return status; + + /* If the previous op was but the initial MOVE_TO and this segment + * is degenerate, then we can simply skip this point. Note that + * a move-to followed by a degenerate line-to is a valid path for + * stroking, but at all other times is simply a degenerate segment. + */ + if (_cairo_path_fixed_last_op (path) != CAIRO_PATH_OP_MOVE_TO) { + if (x == path->current_point.x && y == path->current_point.y) + return CAIRO_STATUS_SUCCESS; + } + + /* If the previous op was also a LINE_TO with the same gradient, + * then just change its end-point rather than adding a new op. + */ + if (_cairo_path_fixed_last_op (path) == CAIRO_PATH_OP_LINE_TO) { + const cairo_point_t *p; + + p = _cairo_path_fixed_penultimate_point (path); + if (p->x == path->current_point.x && p->y == path->current_point.y) { + /* previous line element was degenerate, replace */ + _cairo_path_fixed_drop_line_to (path); + } else { + cairo_slope_t prev, self; + + _cairo_slope_init (&prev, p, &path->current_point); + _cairo_slope_init (&self, &path->current_point, &point); + if (_cairo_slope_equal (&prev, &self) && + /* cannot trim anti-parallel segments whilst stroking */ + ! _cairo_slope_backwards (&prev, &self)) + { + _cairo_path_fixed_drop_line_to (path); + /* In this case the flags might be more restrictive than + * what we actually need. + * When changing the flags definition we should check if + * changing the line_to point can affect them. + */ + } + } + } + + if (path->stroke_is_rectilinear) { + path->stroke_is_rectilinear = path->current_point.x == x || + path->current_point.y == y; + path->fill_is_rectilinear &= path->stroke_is_rectilinear; + path->fill_maybe_region &= path->fill_is_rectilinear; + if (path->fill_maybe_region) { + path->fill_maybe_region = _cairo_fixed_is_integer (x) && + _cairo_fixed_is_integer (y); + } + if (path->fill_is_empty) { + path->fill_is_empty = path->current_point.x == x && + path->current_point.y == y; + } + } + + path->current_point = point; + + _cairo_box_add_point (&path->extents, &point); + + return _cairo_path_fixed_add (path, CAIRO_PATH_OP_LINE_TO, &point, 1); +} + +cairo_status_t +_cairo_path_fixed_rel_line_to (cairo_path_fixed_t *path, + cairo_fixed_t dx, + cairo_fixed_t dy) +{ + if (unlikely (! path->has_current_point)) + return _cairo_error (CAIRO_STATUS_NO_CURRENT_POINT); + + return _cairo_path_fixed_line_to (path, + path->current_point.x + dx, + path->current_point.y + dy); +} + +cairo_status_t +_cairo_path_fixed_curve_to (cairo_path_fixed_t *path, + cairo_fixed_t x0, cairo_fixed_t y0, + cairo_fixed_t x1, cairo_fixed_t y1, + cairo_fixed_t x2, cairo_fixed_t y2) +{ + cairo_status_t status; + cairo_point_t point[3]; + + /* If this curves does not move, replace it with a line-to. + * This frequently happens with rounded-rectangles and r==0. + */ + if (path->current_point.x == x2 && path->current_point.y == y2) { + if (x1 == x2 && x0 == x2 && y1 == y2 && y0 == y2) + return _cairo_path_fixed_line_to (path, x2, y2); + + /* We may want to check for the absence of a cusp, in which case + * we can also replace the curve-to with a line-to. + */ + } + + /* make sure subpaths are started properly */ + if (! path->has_current_point) { + status = _cairo_path_fixed_move_to (path, x0, y0); + assert (status == CAIRO_STATUS_SUCCESS); + } + + status = _cairo_path_fixed_move_to_apply (path); + if (unlikely (status)) + return status; + + /* If the previous op was a degenerate LINE_TO, drop it. */ + if (_cairo_path_fixed_last_op (path) == CAIRO_PATH_OP_LINE_TO) { + const cairo_point_t *p; + + p = _cairo_path_fixed_penultimate_point (path); + if (p->x == path->current_point.x && p->y == path->current_point.y) { + /* previous line element was degenerate, replace */ + _cairo_path_fixed_drop_line_to (path); + } + } + + point[0].x = x0; point[0].y = y0; + point[1].x = x1; point[1].y = y1; + point[2].x = x2; point[2].y = y2; + + _cairo_box_add_curve_to (&path->extents, &path->current_point, + &point[0], &point[1], &point[2]); + + path->current_point = point[2]; + path->has_curve_to = TRUE; + path->stroke_is_rectilinear = FALSE; + path->fill_is_rectilinear = FALSE; + path->fill_maybe_region = FALSE; + path->fill_is_empty = FALSE; + + return _cairo_path_fixed_add (path, CAIRO_PATH_OP_CURVE_TO, point, 3); +} + +cairo_status_t +_cairo_path_fixed_rel_curve_to (cairo_path_fixed_t *path, + cairo_fixed_t dx0, cairo_fixed_t dy0, + cairo_fixed_t dx1, cairo_fixed_t dy1, + cairo_fixed_t dx2, cairo_fixed_t dy2) +{ + if (unlikely (! path->has_current_point)) + return _cairo_error (CAIRO_STATUS_NO_CURRENT_POINT); + + return _cairo_path_fixed_curve_to (path, + path->current_point.x + dx0, + path->current_point.y + dy0, + + path->current_point.x + dx1, + path->current_point.y + dy1, + + path->current_point.x + dx2, + path->current_point.y + dy2); +} + +cairo_status_t +_cairo_path_fixed_close_path (cairo_path_fixed_t *path) +{ + cairo_status_t status; + + if (! path->has_current_point) + return CAIRO_STATUS_SUCCESS; + + /* + * Add a line_to, to compute flags and solve any degeneracy. + * It will be removed later (if it was actually added). + */ + status = _cairo_path_fixed_line_to (path, + path->last_move_point.x, + path->last_move_point.y); + if (unlikely (status)) + return status; + + /* + * If the command used to close the path is a line_to, drop it. + * We must check that last command is actually a line_to, + * because the path could have been closed with a curve_to (and + * the previous line_to not added as it would be degenerate). + */ + if (_cairo_path_fixed_last_op (path) == CAIRO_PATH_OP_LINE_TO) + _cairo_path_fixed_drop_line_to (path); + + path->needs_move_to = TRUE; /* After close_path, add an implicit move_to */ + + return _cairo_path_fixed_add (path, CAIRO_PATH_OP_CLOSE_PATH, NULL, 0); +} + +cairo_bool_t +_cairo_path_fixed_get_current_point (cairo_path_fixed_t *path, + cairo_fixed_t *x, + cairo_fixed_t *y) +{ + if (! path->has_current_point) + return FALSE; + + *x = path->current_point.x; + *y = path->current_point.y; + + return TRUE; +} + +static cairo_status_t +_cairo_path_fixed_add (cairo_path_fixed_t *path, + cairo_path_op_t op, + const cairo_point_t *points, + int num_points) +{ + cairo_path_buf_t *buf = cairo_path_tail (path); + + if (buf->num_ops + 1 > buf->size_ops || + buf->num_points + num_points > buf->size_points) + { + buf = _cairo_path_buf_create (buf->num_ops * 2, buf->num_points * 2); + if (unlikely (buf == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_path_fixed_add_buf (path, buf); + } + + if (WATCH_PATH) { + const char *op_str[] = { + "move-to", + "line-to", + "curve-to", + "close-path", + }; + char buf[1024]; + int len = 0; + int i; + + len += snprintf (buf + len, sizeof (buf), "["); + for (i = 0; i < num_points; i++) { + if (i != 0) + len += snprintf (buf + len, sizeof (buf), " "); + len += snprintf (buf + len, sizeof (buf), "(%f, %f)", + _cairo_fixed_to_double (points[i].x), + _cairo_fixed_to_double (points[i].y)); + } + len += snprintf (buf + len, sizeof (buf), "]"); + +#define STRINGIFYFLAG(x) (path->x ? #x " " : "") + fprintf (stderr, + "_cairo_path_fixed_add (%s, %s) [%s%s%s%s%s%s%s%s]\n", + op_str[(int) op], buf, + STRINGIFYFLAG(has_current_point), + STRINGIFYFLAG(needs_move_to), + STRINGIFYFLAG(has_extents), + STRINGIFYFLAG(has_curve_to), + STRINGIFYFLAG(stroke_is_rectilinear), + STRINGIFYFLAG(fill_is_rectilinear), + STRINGIFYFLAG(fill_is_empty), + STRINGIFYFLAG(fill_maybe_region) + ); +#undef STRINGIFYFLAG + } + + _cairo_path_buf_add_op (buf, op); + _cairo_path_buf_add_points (buf, points, num_points); + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_path_fixed_add_buf (cairo_path_fixed_t *path, + cairo_path_buf_t *buf) +{ + cairo_list_add_tail (&buf->link, &cairo_path_head (path)->link); +} + +COMPILE_TIME_ASSERT (sizeof (cairo_path_op_t) == 1); +static cairo_path_buf_t * +_cairo_path_buf_create (int size_ops, int size_points) +{ + cairo_path_buf_t *buf; + + /* adjust size_ops to ensure that buf->points is naturally aligned */ + size_ops += sizeof (double) - ((sizeof (cairo_path_buf_t) + size_ops) % sizeof (double)); + buf = _cairo_malloc_ab_plus_c (size_points, sizeof (cairo_point_t), size_ops + sizeof (cairo_path_buf_t)); + if (buf) { + buf->num_ops = 0; + buf->num_points = 0; + buf->size_ops = size_ops; + buf->size_points = size_points; + + buf->op = (cairo_path_op_t *) (buf + 1); + buf->points = (cairo_point_t *) (buf->op + size_ops); + } + + return buf; +} + +static void +_cairo_path_buf_destroy (cairo_path_buf_t *buf) +{ + free (buf); +} + +static void +_cairo_path_buf_add_op (cairo_path_buf_t *buf, + cairo_path_op_t op) +{ + buf->op[buf->num_ops++] = op; +} + +static void +_cairo_path_buf_add_points (cairo_path_buf_t *buf, + const cairo_point_t *points, + int num_points) +{ + if (num_points == 0) + return; + + memcpy (buf->points + buf->num_points, + points, + sizeof (points[0]) * num_points); + buf->num_points += num_points; +} + +cairo_status_t +_cairo_path_fixed_interpret (const cairo_path_fixed_t *path, + cairo_path_fixed_move_to_func_t *move_to, + cairo_path_fixed_line_to_func_t *line_to, + cairo_path_fixed_curve_to_func_t *curve_to, + cairo_path_fixed_close_path_func_t *close_path, + void *closure) +{ + const cairo_path_buf_t *buf; + cairo_status_t status; + + cairo_path_foreach_buf_start (buf, path) { + const cairo_point_t *points = buf->points; + unsigned int i; + + for (i = 0; i < buf->num_ops; i++) { + switch (buf->op[i]) { + case CAIRO_PATH_OP_MOVE_TO: + status = (*move_to) (closure, &points[0]); + points += 1; + break; + case CAIRO_PATH_OP_LINE_TO: + status = (*line_to) (closure, &points[0]); + points += 1; + break; + case CAIRO_PATH_OP_CURVE_TO: + status = (*curve_to) (closure, &points[0], &points[1], &points[2]); + points += 3; + break; + default: + ASSERT_NOT_REACHED; + case CAIRO_PATH_OP_CLOSE_PATH: + status = (*close_path) (closure); + break; + } + + if (unlikely (status)) + return status; + } + } cairo_path_foreach_buf_end (buf, path); + + if (path->needs_move_to && path->has_current_point) + return (*move_to) (closure, &path->current_point); + + return CAIRO_STATUS_SUCCESS; +} + +typedef struct _cairo_path_fixed_append_closure { + cairo_point_t offset; + cairo_path_fixed_t *path; +} cairo_path_fixed_append_closure_t; + +static cairo_status_t +_append_move_to (void *abstract_closure, + const cairo_point_t *point) +{ + cairo_path_fixed_append_closure_t *closure = abstract_closure; + + return _cairo_path_fixed_move_to (closure->path, + point->x + closure->offset.x, + point->y + closure->offset.y); +} + +static cairo_status_t +_append_line_to (void *abstract_closure, + const cairo_point_t *point) +{ + cairo_path_fixed_append_closure_t *closure = abstract_closure; + + return _cairo_path_fixed_line_to (closure->path, + point->x + closure->offset.x, + point->y + closure->offset.y); +} + +static cairo_status_t +_append_curve_to (void *abstract_closure, + const cairo_point_t *p0, + const cairo_point_t *p1, + const cairo_point_t *p2) +{ + cairo_path_fixed_append_closure_t *closure = abstract_closure; + + return _cairo_path_fixed_curve_to (closure->path, + p0->x + closure->offset.x, + p0->y + closure->offset.y, + p1->x + closure->offset.x, + p1->y + closure->offset.y, + p2->x + closure->offset.x, + p2->y + closure->offset.y); +} + +static cairo_status_t +_append_close_path (void *abstract_closure) +{ + cairo_path_fixed_append_closure_t *closure = abstract_closure; + + return _cairo_path_fixed_close_path (closure->path); +} + +cairo_status_t +_cairo_path_fixed_append (cairo_path_fixed_t *path, + const cairo_path_fixed_t *other, + cairo_fixed_t tx, + cairo_fixed_t ty) +{ + cairo_path_fixed_append_closure_t closure; + + closure.path = path; + closure.offset.x = tx; + closure.offset.y = ty; + + return _cairo_path_fixed_interpret (other, + _append_move_to, + _append_line_to, + _append_curve_to, + _append_close_path, + &closure); +} + +static void +_cairo_path_fixed_offset_and_scale (cairo_path_fixed_t *path, + cairo_fixed_t offx, + cairo_fixed_t offy, + cairo_fixed_t scalex, + cairo_fixed_t scaley) +{ + cairo_path_buf_t *buf; + unsigned int i; + + if (scalex == CAIRO_FIXED_ONE && scaley == CAIRO_FIXED_ONE) { + _cairo_path_fixed_translate (path, offx, offy); + return; + } + + path->last_move_point.x = _cairo_fixed_mul (scalex, path->last_move_point.x) + offx; + path->last_move_point.y = _cairo_fixed_mul (scaley, path->last_move_point.y) + offy; + path->current_point.x = _cairo_fixed_mul (scalex, path->current_point.x) + offx; + path->current_point.y = _cairo_fixed_mul (scaley, path->current_point.y) + offy; + + path->fill_maybe_region = TRUE; + + cairo_path_foreach_buf_start (buf, path) { + for (i = 0; i < buf->num_points; i++) { + if (scalex != CAIRO_FIXED_ONE) + buf->points[i].x = _cairo_fixed_mul (buf->points[i].x, scalex); + buf->points[i].x += offx; + + if (scaley != CAIRO_FIXED_ONE) + buf->points[i].y = _cairo_fixed_mul (buf->points[i].y, scaley); + buf->points[i].y += offy; + + if (path->fill_maybe_region) { + path->fill_maybe_region = _cairo_fixed_is_integer (buf->points[i].x) && + _cairo_fixed_is_integer (buf->points[i].y); + } + } + } cairo_path_foreach_buf_end (buf, path); + + path->fill_maybe_region &= path->fill_is_rectilinear; + + path->extents.p1.x = _cairo_fixed_mul (scalex, path->extents.p1.x) + offx; + path->extents.p2.x = _cairo_fixed_mul (scalex, path->extents.p2.x) + offx; + if (scalex < 0) { + cairo_fixed_t t = path->extents.p1.x; + path->extents.p1.x = path->extents.p2.x; + path->extents.p2.x = t; + } + + path->extents.p1.y = _cairo_fixed_mul (scaley, path->extents.p1.y) + offy; + path->extents.p2.y = _cairo_fixed_mul (scaley, path->extents.p2.y) + offy; + if (scaley < 0) { + cairo_fixed_t t = path->extents.p1.y; + path->extents.p1.y = path->extents.p2.y; + path->extents.p2.y = t; + } +} + +void +_cairo_path_fixed_translate (cairo_path_fixed_t *path, + cairo_fixed_t offx, + cairo_fixed_t offy) +{ + cairo_path_buf_t *buf; + unsigned int i; + + if (offx == 0 && offy == 0) + return; + + path->last_move_point.x += offx; + path->last_move_point.y += offy; + path->current_point.x += offx; + path->current_point.y += offy; + + path->fill_maybe_region = TRUE; + + cairo_path_foreach_buf_start (buf, path) { + for (i = 0; i < buf->num_points; i++) { + buf->points[i].x += offx; + buf->points[i].y += offy; + + if (path->fill_maybe_region) { + path->fill_maybe_region = _cairo_fixed_is_integer (buf->points[i].x) && + _cairo_fixed_is_integer (buf->points[i].y); + } + } + } cairo_path_foreach_buf_end (buf, path); + + path->fill_maybe_region &= path->fill_is_rectilinear; + + path->extents.p1.x += offx; + path->extents.p1.y += offy; + path->extents.p2.x += offx; + path->extents.p2.y += offy; +} + + +static inline void +_cairo_path_fixed_transform_point (cairo_point_t *p, + const cairo_matrix_t *matrix) +{ + double dx, dy; + + dx = _cairo_fixed_to_double (p->x); + dy = _cairo_fixed_to_double (p->y); + cairo_matrix_transform_point (matrix, &dx, &dy); + p->x = _cairo_fixed_from_double (dx); + p->y = _cairo_fixed_from_double (dy); +} + +/** + * _cairo_path_fixed_transform: + * @path: a #cairo_path_fixed_t to be transformed + * @matrix: a #cairo_matrix_t + * + * Transform the fixed-point path according to the given matrix. + * There is a fast path for the case where @matrix has no rotation + * or shear. + **/ +void +_cairo_path_fixed_transform (cairo_path_fixed_t *path, + const cairo_matrix_t *matrix) +{ + cairo_box_t extents; + cairo_point_t point; + cairo_path_buf_t *buf; + unsigned int i; + + if (matrix->yx == 0.0 && matrix->xy == 0.0) { + /* Fast path for the common case of scale+transform */ + _cairo_path_fixed_offset_and_scale (path, + _cairo_fixed_from_double (matrix->x0), + _cairo_fixed_from_double (matrix->y0), + _cairo_fixed_from_double (matrix->xx), + _cairo_fixed_from_double (matrix->yy)); + return; + } + + _cairo_path_fixed_transform_point (&path->last_move_point, matrix); + _cairo_path_fixed_transform_point (&path->current_point, matrix); + + buf = cairo_path_head (path); + if (buf->num_points == 0) + return; + + extents = path->extents; + point = buf->points[0]; + _cairo_path_fixed_transform_point (&point, matrix); + _cairo_box_set (&path->extents, &point, &point); + + cairo_path_foreach_buf_start (buf, path) { + for (i = 0; i < buf->num_points; i++) { + _cairo_path_fixed_transform_point (&buf->points[i], matrix); + _cairo_box_add_point (&path->extents, &buf->points[i]); + } + } cairo_path_foreach_buf_end (buf, path); + + if (path->has_curve_to) { + cairo_bool_t is_tight; + + _cairo_matrix_transform_bounding_box_fixed (matrix, &extents, &is_tight); + if (!is_tight) { + cairo_bool_t has_extents; + + has_extents = _cairo_path_bounder_extents (path, &extents); + assert (has_extents); + } + path->extents = extents; + } + + /* flags might become more strict than needed */ + path->stroke_is_rectilinear = FALSE; + path->fill_is_rectilinear = FALSE; + path->fill_is_empty = FALSE; + path->fill_maybe_region = FALSE; +} + +/* Closure for path flattening */ +typedef struct cairo_path_flattener { + double tolerance; + cairo_point_t current_point; + cairo_path_fixed_move_to_func_t *move_to; + cairo_path_fixed_line_to_func_t *line_to; + cairo_path_fixed_close_path_func_t *close_path; + void *closure; +} cpf_t; + +static cairo_status_t +_cpf_move_to (void *closure, + const cairo_point_t *point) +{ + cpf_t *cpf = closure; + + cpf->current_point = *point; + + return cpf->move_to (cpf->closure, point); +} + +static cairo_status_t +_cpf_line_to (void *closure, + const cairo_point_t *point) +{ + cpf_t *cpf = closure; + + cpf->current_point = *point; + + return cpf->line_to (cpf->closure, point); +} + +static cairo_status_t +_cpf_add_point (void *closure, + const cairo_point_t *point, + const cairo_slope_t *tangent) +{ + return _cpf_line_to (closure, point); +}; + +static cairo_status_t +_cpf_curve_to (void *closure, + const cairo_point_t *p1, + const cairo_point_t *p2, + const cairo_point_t *p3) +{ + cpf_t *cpf = closure; + cairo_spline_t spline; + + cairo_point_t *p0 = &cpf->current_point; + + if (! _cairo_spline_init (&spline, + _cpf_add_point, + cpf, + p0, p1, p2, p3)) + { + return _cpf_line_to (closure, p3); + } + + cpf->current_point = *p3; + + return _cairo_spline_decompose (&spline, cpf->tolerance); +} + +static cairo_status_t +_cpf_close_path (void *closure) +{ + cpf_t *cpf = closure; + + return cpf->close_path (cpf->closure); +} + +cairo_status_t +_cairo_path_fixed_interpret_flat (const cairo_path_fixed_t *path, + cairo_path_fixed_move_to_func_t *move_to, + cairo_path_fixed_line_to_func_t *line_to, + cairo_path_fixed_close_path_func_t *close_path, + void *closure, + double tolerance) +{ + cpf_t flattener; + + if (! path->has_curve_to) { + return _cairo_path_fixed_interpret (path, + move_to, + line_to, + NULL, + close_path, + closure); + } + + flattener.tolerance = tolerance; + flattener.move_to = move_to; + flattener.line_to = line_to; + flattener.close_path = close_path; + flattener.closure = closure; + return _cairo_path_fixed_interpret (path, + _cpf_move_to, + _cpf_line_to, + _cpf_curve_to, + _cpf_close_path, + &flattener); +} + +static inline void +_canonical_box (cairo_box_t *box, + const cairo_point_t *p1, + const cairo_point_t *p2) +{ + if (p1->x <= p2->x) { + box->p1.x = p1->x; + box->p2.x = p2->x; + } else { + box->p1.x = p2->x; + box->p2.x = p1->x; + } + + if (p1->y <= p2->y) { + box->p1.y = p1->y; + box->p2.y = p2->y; + } else { + box->p1.y = p2->y; + box->p2.y = p1->y; + } +} + +static inline cairo_bool_t +_path_is_quad (const cairo_path_fixed_t *path) +{ + const cairo_path_buf_t *buf = cairo_path_head (path); + + /* Do we have the right number of ops? */ + if (buf->num_ops < 4 || buf->num_ops > 6) + return FALSE; + + /* Check whether the ops are those that would be used for a rectangle */ + if (buf->op[0] != CAIRO_PATH_OP_MOVE_TO || + buf->op[1] != CAIRO_PATH_OP_LINE_TO || + buf->op[2] != CAIRO_PATH_OP_LINE_TO || + buf->op[3] != CAIRO_PATH_OP_LINE_TO) + { + return FALSE; + } + + /* we accept an implicit close for filled paths */ + if (buf->num_ops > 4) { + /* Now, there are choices. The rectangle might end with a LINE_TO + * (to the original point), but this isn't required. If it + * doesn't, then it must end with a CLOSE_PATH. */ + if (buf->op[4] == CAIRO_PATH_OP_LINE_TO) { + if (buf->points[4].x != buf->points[0].x || + buf->points[4].y != buf->points[0].y) + return FALSE; + } else if (buf->op[4] != CAIRO_PATH_OP_CLOSE_PATH) { + return FALSE; + } + + if (buf->num_ops == 6) { + /* A trailing CLOSE_PATH or MOVE_TO is ok */ + if (buf->op[5] != CAIRO_PATH_OP_MOVE_TO && + buf->op[5] != CAIRO_PATH_OP_CLOSE_PATH) + return FALSE; + } + } + + return TRUE; +} + +static inline cairo_bool_t +_points_form_rect (const cairo_point_t *points) +{ + if (points[0].y == points[1].y && + points[1].x == points[2].x && + points[2].y == points[3].y && + points[3].x == points[0].x) + return TRUE; + if (points[0].x == points[1].x && + points[1].y == points[2].y && + points[2].x == points[3].x && + points[3].y == points[0].y) + return TRUE; + return FALSE; +} + +/* + * Check whether the given path contains a single rectangle. + */ +cairo_bool_t +_cairo_path_fixed_is_box (const cairo_path_fixed_t *path, + cairo_box_t *box) +{ + const cairo_path_buf_t *buf; + + if (! path->fill_is_rectilinear) + return FALSE; + + if (! _path_is_quad (path)) + return FALSE; + + buf = cairo_path_head (path); + if (_points_form_rect (buf->points)) { + _canonical_box (box, &buf->points[0], &buf->points[2]); + return TRUE; + } + + return FALSE; +} + +/* Determine whether two lines A->B and C->D intersect based on the + * algorithm described here: http://paulbourke.net/geometry/pointlineplane/ */ +static inline cairo_bool_t +_lines_intersect_or_are_coincident (cairo_point_t a, + cairo_point_t b, + cairo_point_t c, + cairo_point_t d) +{ + cairo_int64_t numerator_a, numerator_b, denominator; + cairo_bool_t denominator_negative; + + denominator = _cairo_int64_sub (_cairo_int32x32_64_mul (d.y - c.y, b.x - a.x), + _cairo_int32x32_64_mul (d.x - c.x, b.y - a.y)); + numerator_a = _cairo_int64_sub (_cairo_int32x32_64_mul (d.x - c.x, a.y - c.y), + _cairo_int32x32_64_mul (d.y - c.y, a.x - c.x)); + numerator_b = _cairo_int64_sub (_cairo_int32x32_64_mul (b.x - a.x, a.y - c.y), + _cairo_int32x32_64_mul (b.y - a.y, a.x - c.x)); + + if (_cairo_int64_is_zero (denominator)) { + /* If the denominator and numerators are both zero, + * the lines are coincident. */ + if (_cairo_int64_is_zero (numerator_a) && _cairo_int64_is_zero (numerator_b)) + return TRUE; + + /* Otherwise, a zero denominator indicates the lines are + * parallel and never intersect. */ + return FALSE; + } + + /* The lines intersect if both quotients are between 0 and 1 (exclusive). */ + + /* We first test whether either quotient is a negative number. */ + denominator_negative = _cairo_int64_negative (denominator); + if (_cairo_int64_negative (numerator_a) ^ denominator_negative) + return FALSE; + if (_cairo_int64_negative (numerator_b) ^ denominator_negative) + return FALSE; + + /* A zero quotient indicates an "intersection" at an endpoint, which + * we aren't considering a true intersection. */ + if (_cairo_int64_is_zero (numerator_a) || _cairo_int64_is_zero (numerator_b)) + return FALSE; + + /* If the absolute value of the numerator is larger than or equal to the + * denominator the result of the division would be greater than or equal + * to one. */ + if (! denominator_negative) { + if (! _cairo_int64_lt (numerator_a, denominator) || + ! _cairo_int64_lt (numerator_b, denominator)) + return FALSE; + } else { + if (! _cairo_int64_lt (denominator, numerator_a) || + ! _cairo_int64_lt (denominator, numerator_b)) + return FALSE; + } + + return TRUE; +} + +cairo_bool_t +_cairo_path_fixed_is_simple_quad (const cairo_path_fixed_t *path) +{ + const cairo_point_t *points; + + if (! _path_is_quad (path)) + return FALSE; + + points = cairo_path_head (path)->points; + if (_points_form_rect (points)) + return TRUE; + + if (_lines_intersect_or_are_coincident (points[0], points[1], + points[3], points[2])) + return FALSE; + + if (_lines_intersect_or_are_coincident (points[0], points[3], + points[1], points[2])) + return FALSE; + + return TRUE; +} + +cairo_bool_t +_cairo_path_fixed_is_stroke_box (const cairo_path_fixed_t *path, + cairo_box_t *box) +{ + const cairo_path_buf_t *buf = cairo_path_head (path); + + if (! path->fill_is_rectilinear) + return FALSE; + + /* Do we have the right number of ops? */ + if (buf->num_ops != 5) + return FALSE; + + /* Check whether the ops are those that would be used for a rectangle */ + if (buf->op[0] != CAIRO_PATH_OP_MOVE_TO || + buf->op[1] != CAIRO_PATH_OP_LINE_TO || + buf->op[2] != CAIRO_PATH_OP_LINE_TO || + buf->op[3] != CAIRO_PATH_OP_LINE_TO || + buf->op[4] != CAIRO_PATH_OP_CLOSE_PATH) + { + return FALSE; + } + + /* Ok, we may have a box, if the points line up */ + if (buf->points[0].y == buf->points[1].y && + buf->points[1].x == buf->points[2].x && + buf->points[2].y == buf->points[3].y && + buf->points[3].x == buf->points[0].x) + { + _canonical_box (box, &buf->points[0], &buf->points[2]); + return TRUE; + } + + if (buf->points[0].x == buf->points[1].x && + buf->points[1].y == buf->points[2].y && + buf->points[2].x == buf->points[3].x && + buf->points[3].y == buf->points[0].y) + { + _canonical_box (box, &buf->points[0], &buf->points[2]); + return TRUE; + } + + return FALSE; +} + +/* + * Check whether the given path contains a single rectangle + * that is logically equivalent to: + * + * cairo_move_to (cr, x, y); + * cairo_rel_line_to (cr, width, 0); + * cairo_rel_line_to (cr, 0, height); + * cairo_rel_line_to (cr, -width, 0); + * cairo_close_path (cr); + * + */ +cairo_bool_t +_cairo_path_fixed_is_rectangle (const cairo_path_fixed_t *path, + cairo_box_t *box) +{ + const cairo_path_buf_t *buf; + + if (! _cairo_path_fixed_is_box (path, box)) + return FALSE; + + /* This check is valid because the current implementation of + * _cairo_path_fixed_is_box () only accepts rectangles like: + * move,line,line,line[,line|close[,close|move]]. */ + buf = cairo_path_head (path); + if (buf->num_ops > 4) + return TRUE; + + return FALSE; +} + +void +_cairo_path_fixed_iter_init (cairo_path_fixed_iter_t *iter, + const cairo_path_fixed_t *path) +{ + iter->first = iter->buf = cairo_path_head (path); + iter->n_op = 0; + iter->n_point = 0; +} + +static cairo_bool_t +_cairo_path_fixed_iter_next_op (cairo_path_fixed_iter_t *iter) +{ + if (++iter->n_op >= iter->buf->num_ops) { + iter->buf = cairo_path_buf_next (iter->buf); + if (iter->buf == iter->first) { + iter->buf = NULL; + return FALSE; + } + + iter->n_op = 0; + iter->n_point = 0; + } + + return TRUE; +} + +cairo_bool_t +_cairo_path_fixed_iter_is_fill_box (cairo_path_fixed_iter_t *_iter, + cairo_box_t *box) +{ + cairo_point_t points[5]; + cairo_path_fixed_iter_t iter; + + if (_iter->buf == NULL) + return FALSE; + + iter = *_iter; + + if (iter.n_op == iter.buf->num_ops && ! _cairo_path_fixed_iter_next_op (&iter)) + return FALSE; + + /* Check whether the ops are those that would be used for a rectangle */ + if (iter.buf->op[iter.n_op] != CAIRO_PATH_OP_MOVE_TO) + return FALSE; + points[0] = iter.buf->points[iter.n_point++]; + if (! _cairo_path_fixed_iter_next_op (&iter)) + return FALSE; + + if (iter.buf->op[iter.n_op] != CAIRO_PATH_OP_LINE_TO) + return FALSE; + points[1] = iter.buf->points[iter.n_point++]; + if (! _cairo_path_fixed_iter_next_op (&iter)) + return FALSE; + + /* a horizontal/vertical closed line is also a degenerate rectangle */ + switch (iter.buf->op[iter.n_op]) { + case CAIRO_PATH_OP_CLOSE_PATH: + _cairo_path_fixed_iter_next_op (&iter); /* fall through */ + case CAIRO_PATH_OP_MOVE_TO: /* implicit close */ + box->p1 = box->p2 = points[0]; + *_iter = iter; + return TRUE; + default: + return FALSE; + case CAIRO_PATH_OP_LINE_TO: + break; + } + + points[2] = iter.buf->points[iter.n_point++]; + if (! _cairo_path_fixed_iter_next_op (&iter)) + return FALSE; + + if (iter.buf->op[iter.n_op] != CAIRO_PATH_OP_LINE_TO) + return FALSE; + points[3] = iter.buf->points[iter.n_point++]; + + /* Now, there are choices. The rectangle might end with a LINE_TO + * (to the original point), but this isn't required. If it + * doesn't, then it must end with a CLOSE_PATH (which may be implicit). */ + if (! _cairo_path_fixed_iter_next_op (&iter)) { + /* implicit close due to fill */ + } else if (iter.buf->op[iter.n_op] == CAIRO_PATH_OP_LINE_TO) { + points[4] = iter.buf->points[iter.n_point++]; + if (points[4].x != points[0].x || points[4].y != points[0].y) + return FALSE; + _cairo_path_fixed_iter_next_op (&iter); + } else if (iter.buf->op[iter.n_op] == CAIRO_PATH_OP_CLOSE_PATH) { + _cairo_path_fixed_iter_next_op (&iter); + } else if (iter.buf->op[iter.n_op] == CAIRO_PATH_OP_MOVE_TO) { + /* implicit close-path due to new-sub-path */ + } else { + return FALSE; + } + + /* Ok, we may have a box, if the points line up */ + if (points[0].y == points[1].y && + points[1].x == points[2].x && + points[2].y == points[3].y && + points[3].x == points[0].x) + { + box->p1 = points[0]; + box->p2 = points[2]; + *_iter = iter; + return TRUE; + } + + if (points[0].x == points[1].x && + points[1].y == points[2].y && + points[2].x == points[3].x && + points[3].y == points[0].y) + { + box->p1 = points[1]; + box->p2 = points[3]; + *_iter = iter; + return TRUE; + } + + return FALSE; +} + +cairo_bool_t +_cairo_path_fixed_iter_at_end (const cairo_path_fixed_iter_t *iter) +{ + if (iter->buf == NULL) + return TRUE; + + return iter->n_op == iter->buf->num_ops; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-path-in-fill.c b/local/recipes/libs/cairo/source/src/cairo-path-in-fill.c new file mode 100644 index 0000000000..342d5a28e8 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-path-in-fill.c @@ -0,0 +1,298 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" +#include "cairo-path-fixed-private.h" + +typedef struct cairo_in_fill { + double tolerance; + cairo_bool_t on_edge; + int winding; + + cairo_fixed_t x, y; + + cairo_bool_t has_current_point; + cairo_point_t current_point; + cairo_point_t first_point; +} cairo_in_fill_t; + +static void +_cairo_in_fill_init (cairo_in_fill_t *in_fill, + double tolerance, + double x, + double y) +{ + in_fill->on_edge = FALSE; + in_fill->winding = 0; + in_fill->tolerance = tolerance; + + in_fill->x = _cairo_fixed_from_double (x); + in_fill->y = _cairo_fixed_from_double (y); + + in_fill->has_current_point = FALSE; + in_fill->current_point.x = 0; + in_fill->current_point.y = 0; +} + +static void +_cairo_in_fill_fini (cairo_in_fill_t *in_fill) +{ +} + +static int +edge_compare_for_y_against_x (const cairo_point_t *p1, + const cairo_point_t *p2, + cairo_fixed_t y, + cairo_fixed_t x) +{ + cairo_fixed_t adx, ady; + cairo_fixed_t dx, dy; + cairo_int64_t L, R; + + adx = p2->x - p1->x; + dx = x - p1->x; + + if (adx == 0) + return -dx; + if ((adx ^ dx) < 0) + return adx; + + dy = y - p1->y; + ady = p2->y - p1->y; + + L = _cairo_int32x32_64_mul (dy, adx); + R = _cairo_int32x32_64_mul (dx, ady); + + return _cairo_int64_cmp (L, R); +} + +static void +_cairo_in_fill_add_edge (cairo_in_fill_t *in_fill, + const cairo_point_t *p1, + const cairo_point_t *p2) +{ + int dir; + + if (in_fill->on_edge) + return; + + /* count the number of edge crossing to -∞ */ + + dir = 1; + if (p2->y < p1->y) { + const cairo_point_t *tmp; + + tmp = p1; + p1 = p2; + p2 = tmp; + + dir = -1; + } + + /* First check whether the query is on an edge */ + if ((p1->x == in_fill->x && p1->y == in_fill->y) || + (p2->x == in_fill->x && p2->y == in_fill->y) || + (! (p2->y < in_fill->y || p1->y > in_fill->y || + (p1->x > in_fill->x && p2->x > in_fill->x) || + (p1->x < in_fill->x && p2->x < in_fill->x)) && + edge_compare_for_y_against_x (p1, p2, in_fill->y, in_fill->x) == 0)) + { + in_fill->on_edge = TRUE; + return; + } + + /* edge is entirely above or below, note the shortening rule */ + if (p2->y <= in_fill->y || p1->y > in_fill->y) + return; + + /* edge lies wholly to the right */ + if (p1->x >= in_fill->x && p2->x >= in_fill->x) + return; + + if ((p1->x <= in_fill->x && p2->x <= in_fill->x) || + edge_compare_for_y_against_x (p1, p2, in_fill->y, in_fill->x) < 0) + { + in_fill->winding += dir; + } +} + +static cairo_status_t +_cairo_in_fill_move_to (void *closure, + const cairo_point_t *point) +{ + cairo_in_fill_t *in_fill = closure; + + /* implicit close path */ + if (in_fill->has_current_point) { + _cairo_in_fill_add_edge (in_fill, + &in_fill->current_point, + &in_fill->first_point); + } + + in_fill->first_point = *point; + in_fill->current_point = *point; + in_fill->has_current_point = TRUE; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_in_fill_line_to (void *closure, + const cairo_point_t *point) +{ + cairo_in_fill_t *in_fill = closure; + + if (in_fill->has_current_point) + _cairo_in_fill_add_edge (in_fill, &in_fill->current_point, point); + + in_fill->current_point = *point; + in_fill->has_current_point = TRUE; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_in_fill_add_point (void *closure, + const cairo_point_t *point, + const cairo_slope_t *tangent) +{ + return _cairo_in_fill_line_to (closure, point); +}; + +static cairo_status_t +_cairo_in_fill_curve_to (void *closure, + const cairo_point_t *b, + const cairo_point_t *c, + const cairo_point_t *d) +{ + cairo_in_fill_t *in_fill = closure; + cairo_spline_t spline; + cairo_fixed_t top, bot, left; + + /* first reject based on bbox */ + bot = top = in_fill->current_point.y; + if (b->y < top) top = b->y; + if (b->y > bot) bot = b->y; + if (c->y < top) top = c->y; + if (c->y > bot) bot = c->y; + if (d->y < top) top = d->y; + if (d->y > bot) bot = d->y; + if (bot < in_fill->y || top > in_fill->y) { + in_fill->current_point = *d; + return CAIRO_STATUS_SUCCESS; + } + + left = in_fill->current_point.x; + if (b->x < left) left = b->x; + if (c->x < left) left = c->x; + if (d->x < left) left = d->x; + if (left > in_fill->x) { + in_fill->current_point = *d; + return CAIRO_STATUS_SUCCESS; + } + + /* XXX Investigate direct inspection of the inflections? */ + if (! _cairo_spline_init (&spline, + _cairo_in_fill_add_point, + in_fill, + &in_fill->current_point, b, c, d)) + { + return CAIRO_STATUS_SUCCESS; + } + + return _cairo_spline_decompose (&spline, in_fill->tolerance); +} + +static cairo_status_t +_cairo_in_fill_close_path (void *closure) +{ + cairo_in_fill_t *in_fill = closure; + + if (in_fill->has_current_point) { + _cairo_in_fill_add_edge (in_fill, + &in_fill->current_point, + &in_fill->first_point); + + in_fill->has_current_point = FALSE; + } + + return CAIRO_STATUS_SUCCESS; +} + +cairo_bool_t +_cairo_path_fixed_in_fill (const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + double x, + double y) +{ + cairo_in_fill_t in_fill; + cairo_status_t status; + cairo_bool_t is_inside; + + if (_cairo_path_fixed_fill_is_empty (path)) + return FALSE; + + _cairo_in_fill_init (&in_fill, tolerance, x, y); + + status = _cairo_path_fixed_interpret (path, + _cairo_in_fill_move_to, + _cairo_in_fill_line_to, + _cairo_in_fill_curve_to, + _cairo_in_fill_close_path, + &in_fill); + assert (status == CAIRO_STATUS_SUCCESS); + + _cairo_in_fill_close_path (&in_fill); + + if (in_fill.on_edge) { + is_inside = TRUE; + } else switch (fill_rule) { + case CAIRO_FILL_RULE_EVEN_ODD: + is_inside = in_fill.winding & 1; + break; + case CAIRO_FILL_RULE_WINDING: + is_inside = in_fill.winding != 0; + break; + default: + ASSERT_NOT_REACHED; + is_inside = FALSE; + break; + } + + _cairo_in_fill_fini (&in_fill); + + return is_inside; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-path-private.h b/local/recipes/libs/cairo/source/src/cairo-path-private.h new file mode 100644 index 0000000000..7b54317e20 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-path-private.h @@ -0,0 +1,57 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2006 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_PATH_PRIVATE_H +#define CAIRO_PATH_PRIVATE_H + +#include "cairoint.h" + +cairo_private cairo_path_t * +_cairo_path_create (cairo_path_fixed_t *path, + cairo_t *cr); + +cairo_private cairo_path_t * +_cairo_path_create_flat (cairo_path_fixed_t *path, + cairo_t *cr); + +cairo_private cairo_path_t * +_cairo_path_create_in_error (cairo_status_t status); + +cairo_private cairo_status_t +_cairo_path_append_to_context (const cairo_path_t *path, + cairo_t *cr); + +#endif /* CAIRO_PATH_DATA_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-path-stroke-boxes.c b/local/recipes/libs/cairo/source/src/cairo-path-stroke-boxes.c new file mode 100644 index 0000000000..fba170c638 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-path-stroke-boxes.c @@ -0,0 +1,711 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +#define _DEFAULT_SOURCE /* for hypot() */ +#include "cairoint.h" + +#include "cairo-box-inline.h" +#include "cairo-boxes-private.h" +#include "cairo-error-private.h" +#include "cairo-path-fixed-private.h" +#include "cairo-slope-private.h" +#include "cairo-stroke-dash-private.h" + +typedef struct _segment_t { + cairo_point_t p1, p2; + unsigned flags; +#define HORIZONTAL 0x1 +#define FORWARDS 0x2 +#define JOIN 0x4 +} segment_t; + +typedef struct _cairo_rectilinear_stroker { + const cairo_stroke_style_t *stroke_style; + const cairo_matrix_t *ctm; + cairo_antialias_t antialias; + + cairo_fixed_t half_line_x, half_line_y; + cairo_boxes_t *boxes; + cairo_point_t current_point; + cairo_point_t first_point; + cairo_bool_t open_sub_path; + + cairo_stroker_dash_t dash; + + cairo_bool_t has_bounds; + cairo_box_t bounds; + + int num_segments; + int segments_size; + segment_t *segments; + segment_t segments_embedded[8]; /* common case is a single rectangle */ +} cairo_rectilinear_stroker_t; + +static void +_cairo_rectilinear_stroker_limit (cairo_rectilinear_stroker_t *stroker, + const cairo_box_t *boxes, + int num_boxes) +{ + stroker->has_bounds = TRUE; + _cairo_boxes_get_extents (boxes, num_boxes, &stroker->bounds); + + stroker->bounds.p1.x -= stroker->half_line_x; + stroker->bounds.p2.x += stroker->half_line_x; + + stroker->bounds.p1.y -= stroker->half_line_y; + stroker->bounds.p2.y += stroker->half_line_y; +} + +static cairo_bool_t +_cairo_rectilinear_stroker_init (cairo_rectilinear_stroker_t *stroker, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + cairo_antialias_t antialias, + cairo_boxes_t *boxes) +{ + /* This special-case rectilinear stroker only supports + * miter-joined lines (not curves) and a translation-only matrix + * (though it could probably be extended to support a matrix with + * uniform, integer scaling). + * + * It also only supports horizontal and vertical line_to + * elements. But we don't catch that here, but instead return + * UNSUPPORTED from _cairo_rectilinear_stroker_line_to if any + * non-rectilinear line_to is encountered. + */ + if (stroke_style->line_join != CAIRO_LINE_JOIN_MITER) + return FALSE; + + /* If the miter limit turns right angles into bevels, then we + * can't use this optimization. Remember, the ratio is + * 1/sin(ɸ/2). So the cutoff is 1/sin(Ï€/4.0) or ⎷2, + * which we round for safety. */ + if (stroke_style->miter_limit < M_SQRT2) + return FALSE; + + if (! (stroke_style->line_cap == CAIRO_LINE_CAP_BUTT || + stroke_style->line_cap == CAIRO_LINE_CAP_SQUARE)) + { + return FALSE; + } + + if (! _cairo_matrix_is_scale (ctm)) + return FALSE; + + stroker->stroke_style = stroke_style; + stroker->ctm = ctm; + stroker->antialias = antialias; + + stroker->half_line_x = + _cairo_fixed_from_double (fabs(ctm->xx) * stroke_style->line_width / 2.0); + stroker->half_line_y = + _cairo_fixed_from_double (fabs(ctm->yy) * stroke_style->line_width / 2.0); + + stroker->open_sub_path = FALSE; + stroker->segments = stroker->segments_embedded; + stroker->segments_size = ARRAY_LENGTH (stroker->segments_embedded); + stroker->num_segments = 0; + + _cairo_stroker_dash_init (&stroker->dash, stroke_style); + + stroker->has_bounds = FALSE; + + stroker->boxes = boxes; + + return TRUE; +} + +static void +_cairo_rectilinear_stroker_fini (cairo_rectilinear_stroker_t *stroker) +{ + if (stroker->segments != stroker->segments_embedded) + free (stroker->segments); +} + +static cairo_status_t +_cairo_rectilinear_stroker_add_segment (cairo_rectilinear_stroker_t *stroker, + const cairo_point_t *p1, + const cairo_point_t *p2, + unsigned flags) +{ + if (CAIRO_INJECT_FAULT ()) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (stroker->num_segments == stroker->segments_size) { + int new_size = stroker->segments_size * 2; + segment_t *new_segments; + + if (stroker->segments == stroker->segments_embedded) { + new_segments = _cairo_malloc_ab (new_size, sizeof (segment_t)); + if (unlikely (new_segments == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memcpy (new_segments, stroker->segments, + stroker->num_segments * sizeof (segment_t)); + } else { + new_segments = _cairo_realloc_ab (stroker->segments, + new_size, sizeof (segment_t)); + if (unlikely (new_segments == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + stroker->segments_size = new_size; + stroker->segments = new_segments; + } + + stroker->segments[stroker->num_segments].p1 = *p1; + stroker->segments[stroker->num_segments].p2 = *p2; + stroker->segments[stroker->num_segments].flags = flags; + stroker->num_segments++; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_rectilinear_stroker_emit_segments (cairo_rectilinear_stroker_t *stroker) +{ + cairo_line_cap_t line_cap = stroker->stroke_style->line_cap; + cairo_fixed_t half_line_x = stroker->half_line_x; + cairo_fixed_t half_line_y = stroker->half_line_y; + cairo_status_t status; + int i, j; + + /* For each segment we generate a single rectangle. + * This rectangle is based on a perpendicular extension (by half the + * line width) of the segment endpoints * after some adjustments of the + * endpoints to account for caps and joins. + */ + for (i = 0; i < stroker->num_segments; i++) { + cairo_bool_t lengthen_initial, lengthen_final; + cairo_point_t *a, *b; + cairo_box_t box; + + a = &stroker->segments[i].p1; + b = &stroker->segments[i].p2; + + /* We adjust the initial point of the segment to extend the + * rectangle to include the previous cap or join, (this + * adjustment applies to all segments except for the first + * segment of open, butt-capped paths). However, we must be + * careful not to emit a miter join across a degenerate segment + * which has been elided. + * + * Overlapping segments will be eliminated by the tessellation. + * Ideally, we would not emit these self-intersections at all, + * but that is tricky with segments shorter than half_line_width. + */ + j = i == 0 ? stroker->num_segments - 1 : i-1; + lengthen_initial = (stroker->segments[i].flags ^ stroker->segments[j].flags) & HORIZONTAL; + j = i == stroker->num_segments - 1 ? 0 : i+1; + lengthen_final = (stroker->segments[i].flags ^ stroker->segments[j].flags) & HORIZONTAL; + if (stroker->open_sub_path) { + if (i == 0) + lengthen_initial = line_cap != CAIRO_LINE_CAP_BUTT; + + if (i == stroker->num_segments - 1) + lengthen_final = line_cap != CAIRO_LINE_CAP_BUTT; + } + + /* Perform the adjustments of the endpoints. */ + if (lengthen_initial | lengthen_final) { + if (a->y == b->y) { + if (a->x < b->x) { + if (lengthen_initial) + a->x -= half_line_x; + if (lengthen_final) + b->x += half_line_x; + } else { + if (lengthen_initial) + a->x += half_line_x; + if (lengthen_final) + b->x -= half_line_x; + } + } else { + if (a->y < b->y) { + if (lengthen_initial) + a->y -= half_line_y; + if (lengthen_final) + b->y += half_line_y; + } else { + if (lengthen_initial) + a->y += half_line_y; + if (lengthen_final) + b->y -= half_line_y; + } + } + } + + /* Form the rectangle by expanding by half the line width in + * either perpendicular direction. */ + if (a->y == b->y) { + a->y -= half_line_y; + b->y += half_line_y; + } else { + a->x -= half_line_x; + b->x += half_line_x; + } + + if (a->x < b->x) { + box.p1.x = a->x; + box.p2.x = b->x; + } else { + box.p1.x = b->x; + box.p2.x = a->x; + } + if (a->y < b->y) { + box.p1.y = a->y; + box.p2.y = b->y; + } else { + box.p1.y = b->y; + box.p2.y = a->y; + } + + status = _cairo_boxes_add (stroker->boxes, stroker->antialias, &box); + if (unlikely (status)) + return status; + } + + stroker->num_segments = 0; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_rectilinear_stroker_emit_segments_dashed (cairo_rectilinear_stroker_t *stroker) +{ + cairo_status_t status; + cairo_line_cap_t line_cap = stroker->stroke_style->line_cap; + cairo_fixed_t half_line_x = stroker->half_line_x; + cairo_fixed_t half_line_y = stroker->half_line_y; + int i; + + for (i = 0; i < stroker->num_segments; i++) { + cairo_point_t *a, *b; + cairo_bool_t is_horizontal; + cairo_box_t box; + + a = &stroker->segments[i].p1; + b = &stroker->segments[i].p2; + + is_horizontal = stroker->segments[i].flags & HORIZONTAL; + + /* Handle the joins for a potentially degenerate segment. */ + if (line_cap == CAIRO_LINE_CAP_BUTT && + stroker->segments[i].flags & JOIN && + (i != stroker->num_segments - 1 || + (! stroker->open_sub_path && stroker->dash.dash_starts_on))) + { + cairo_slope_t out_slope; + int j = (i + 1) % stroker->num_segments; + cairo_bool_t forwards = !!(stroker->segments[i].flags & FORWARDS); + + _cairo_slope_init (&out_slope, + &stroker->segments[j].p1, + &stroker->segments[j].p2); + box.p2 = box.p1 = stroker->segments[i].p2; + + if (is_horizontal) { + if (forwards) + box.p2.x += half_line_x; + else + box.p1.x -= half_line_x; + + if (out_slope.dy > 0) + box.p1.y -= half_line_y; + else + box.p2.y += half_line_y; + } else { + if (forwards) + box.p2.y += half_line_y; + else + box.p1.y -= half_line_y; + + if (out_slope.dx > 0) + box.p1.x -= half_line_x; + else + box.p2.x += half_line_x; + } + + status = _cairo_boxes_add (stroker->boxes, stroker->antialias, &box); + if (unlikely (status)) + return status; + } + + /* Perform the adjustments of the endpoints. */ + if (is_horizontal) { + if (line_cap == CAIRO_LINE_CAP_SQUARE) { + if (a->x <= b->x) { + a->x -= half_line_x; + b->x += half_line_x; + } else { + a->x += half_line_x; + b->x -= half_line_x; + } + } + + a->y += half_line_y; + b->y -= half_line_y; + } else { + if (line_cap == CAIRO_LINE_CAP_SQUARE) { + if (a->y <= b->y) { + a->y -= half_line_y; + b->y += half_line_y; + } else { + a->y += half_line_y; + b->y -= half_line_y; + } + } + + a->x += half_line_x; + b->x -= half_line_x; + } + + if (a->x == b->x && a->y == b->y) + continue; + + if (a->x < b->x) { + box.p1.x = a->x; + box.p2.x = b->x; + } else { + box.p1.x = b->x; + box.p2.x = a->x; + } + if (a->y < b->y) { + box.p1.y = a->y; + box.p2.y = b->y; + } else { + box.p1.y = b->y; + box.p2.y = a->y; + } + + status = _cairo_boxes_add (stroker->boxes, stroker->antialias, &box); + if (unlikely (status)) + return status; + } + + stroker->num_segments = 0; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_rectilinear_stroker_move_to (void *closure, + const cairo_point_t *point) +{ + cairo_rectilinear_stroker_t *stroker = closure; + cairo_status_t status; + + if (stroker->dash.dashed) + status = _cairo_rectilinear_stroker_emit_segments_dashed (stroker); + else + status = _cairo_rectilinear_stroker_emit_segments (stroker); + if (unlikely (status)) + return status; + + /* reset the dash pattern for new sub paths */ + _cairo_stroker_dash_start (&stroker->dash); + + stroker->current_point = *point; + stroker->first_point = *point; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_rectilinear_stroker_line_to (void *closure, + const cairo_point_t *b) +{ + cairo_rectilinear_stroker_t *stroker = closure; + cairo_point_t *a = &stroker->current_point; + cairo_status_t status; + + /* We only support horizontal or vertical elements. */ + assert (a->x == b->x || a->y == b->y); + + /* We don't draw anything for degenerate paths. */ + if (a->x == b->x && a->y == b->y) + return CAIRO_STATUS_SUCCESS; + + status = _cairo_rectilinear_stroker_add_segment (stroker, a, b, + (a->y == b->y) | JOIN); + + stroker->current_point = *b; + stroker->open_sub_path = TRUE; + + return status; +} + +static cairo_status_t +_cairo_rectilinear_stroker_line_to_dashed (void *closure, + const cairo_point_t *point) +{ + cairo_rectilinear_stroker_t *stroker = closure; + const cairo_point_t *a = &stroker->current_point; + const cairo_point_t *b = point; + cairo_bool_t fully_in_bounds; + double sf, sign, remain; + cairo_fixed_t mag; + cairo_status_t status; + cairo_line_t segment; + cairo_bool_t dash_on = FALSE; + unsigned is_horizontal; + + /* We don't draw anything for degenerate paths. */ + if (a->x == b->x && a->y == b->y) + return CAIRO_STATUS_SUCCESS; + + /* We only support horizontal or vertical elements. */ + assert (a->x == b->x || a->y == b->y); + + fully_in_bounds = TRUE; + if (stroker->has_bounds && + (! _cairo_box_contains_point (&stroker->bounds, a) || + ! _cairo_box_contains_point (&stroker->bounds, b))) + { + fully_in_bounds = FALSE; + } + + is_horizontal = a->y == b->y; + if (is_horizontal) { + mag = b->x - a->x; + sf = fabs (stroker->ctm->xx); + } else { + mag = b->y - a->y; + sf = fabs (stroker->ctm->yy); + } + if (mag < 0) { + remain = _cairo_fixed_to_double (-mag); + sign = 1.; + } else { + remain = _cairo_fixed_to_double (mag); + is_horizontal |= FORWARDS; + sign = -1.; + } + + segment.p2 = segment.p1 = *a; + while (remain > 0.) { + double step_length; + + step_length = MIN (sf * stroker->dash.dash_remain, remain); + remain -= step_length; + + mag = _cairo_fixed_from_double (sign*remain); + if (is_horizontal & 0x1) + segment.p2.x = b->x + mag; + else + segment.p2.y = b->y + mag; + + if (stroker->dash.dash_on && + (fully_in_bounds || + _cairo_box_intersects_line_segment (&stroker->bounds, &segment))) + { + status = _cairo_rectilinear_stroker_add_segment (stroker, + &segment.p1, + &segment.p2, + is_horizontal | (remain <= 0.) << 2); + if (unlikely (status)) + return status; + + dash_on = TRUE; + } + else + { + dash_on = FALSE; + } + + _cairo_stroker_dash_step (&stroker->dash, step_length / sf); + segment.p1 = segment.p2; + } + + if (stroker->dash.dash_on && ! dash_on && + (fully_in_bounds || + _cairo_box_intersects_line_segment (&stroker->bounds, &segment))) + { + + /* This segment ends on a transition to dash_on, compute a new face + * and add cap for the beginning of the next dash_on step. + */ + + status = _cairo_rectilinear_stroker_add_segment (stroker, + &segment.p1, + &segment.p1, + is_horizontal | JOIN); + if (unlikely (status)) + return status; + } + + stroker->current_point = *point; + stroker->open_sub_path = TRUE; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_rectilinear_stroker_close_path (void *closure) +{ + cairo_rectilinear_stroker_t *stroker = closure; + cairo_status_t status; + + /* We don't draw anything for degenerate paths. */ + if (! stroker->open_sub_path) + return CAIRO_STATUS_SUCCESS; + + if (stroker->dash.dashed) { + status = _cairo_rectilinear_stroker_line_to_dashed (stroker, + &stroker->first_point); + } else { + status = _cairo_rectilinear_stroker_line_to (stroker, + &stroker->first_point); + } + if (unlikely (status)) + return status; + + stroker->open_sub_path = FALSE; + + if (stroker->dash.dashed) + status = _cairo_rectilinear_stroker_emit_segments_dashed (stroker); + else + status = _cairo_rectilinear_stroker_emit_segments (stroker); + if (unlikely (status)) + return status; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_int_status_t +_cairo_path_fixed_stroke_rectilinear_to_boxes (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + cairo_antialias_t antialias, + cairo_boxes_t *boxes) +{ + cairo_rectilinear_stroker_t rectilinear_stroker; + cairo_int_status_t status; + cairo_box_t box; + + assert (_cairo_path_fixed_stroke_is_rectilinear (path)); + + if (! _cairo_rectilinear_stroker_init (&rectilinear_stroker, + stroke_style, ctm, antialias, + boxes)) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + if (! rectilinear_stroker.dash.dashed && + _cairo_path_fixed_is_stroke_box (path, &box) && + /* if the segments overlap we need to feed them into the tessellator */ + box.p2.x - box.p1.x > 2* rectilinear_stroker.half_line_x && + box.p2.y - box.p1.y > 2* rectilinear_stroker.half_line_y) + { + cairo_box_t b; + + /* top */ + b.p1.x = box.p1.x - rectilinear_stroker.half_line_x; + b.p2.x = box.p2.x + rectilinear_stroker.half_line_x; + b.p1.y = box.p1.y - rectilinear_stroker.half_line_y; + b.p2.y = box.p1.y + rectilinear_stroker.half_line_y; + status = _cairo_boxes_add (boxes, antialias, &b); + assert (status == CAIRO_INT_STATUS_SUCCESS); + + /* left (excluding top/bottom) */ + b.p1.x = box.p1.x - rectilinear_stroker.half_line_x; + b.p2.x = box.p1.x + rectilinear_stroker.half_line_x; + b.p1.y = box.p1.y + rectilinear_stroker.half_line_y; + b.p2.y = box.p2.y - rectilinear_stroker.half_line_y; + status = _cairo_boxes_add (boxes, antialias, &b); + assert (status == CAIRO_INT_STATUS_SUCCESS); + + /* right (excluding top/bottom) */ + b.p1.x = box.p2.x - rectilinear_stroker.half_line_x; + b.p2.x = box.p2.x + rectilinear_stroker.half_line_x; + b.p1.y = box.p1.y + rectilinear_stroker.half_line_y; + b.p2.y = box.p2.y - rectilinear_stroker.half_line_y; + status = _cairo_boxes_add (boxes, antialias, &b); + assert (status == CAIRO_INT_STATUS_SUCCESS); + + /* bottom */ + b.p1.x = box.p1.x - rectilinear_stroker.half_line_x; + b.p2.x = box.p2.x + rectilinear_stroker.half_line_x; + b.p1.y = box.p2.y - rectilinear_stroker.half_line_y; + b.p2.y = box.p2.y + rectilinear_stroker.half_line_y; + status = _cairo_boxes_add (boxes, antialias, &b); + assert (status == CAIRO_INT_STATUS_SUCCESS); + + goto done; + } + + if (boxes->num_limits) { + _cairo_rectilinear_stroker_limit (&rectilinear_stroker, + boxes->limits, + boxes->num_limits); + } + + status = _cairo_path_fixed_interpret (path, + _cairo_rectilinear_stroker_move_to, + rectilinear_stroker.dash.dashed ? + _cairo_rectilinear_stroker_line_to_dashed : + _cairo_rectilinear_stroker_line_to, + NULL, + _cairo_rectilinear_stroker_close_path, + &rectilinear_stroker); + if (unlikely (status)) + goto BAIL; + + if (rectilinear_stroker.dash.dashed) + status = _cairo_rectilinear_stroker_emit_segments_dashed (&rectilinear_stroker); + else + status = _cairo_rectilinear_stroker_emit_segments (&rectilinear_stroker); + if (unlikely (status)) + goto BAIL; + + /* As we incrementally tessellate, we do not eliminate self-intersections */ + status = _cairo_bentley_ottmann_tessellate_boxes (boxes, + CAIRO_FILL_RULE_WINDING, + boxes); + if (unlikely (status)) + goto BAIL; + +done: + _cairo_rectilinear_stroker_fini (&rectilinear_stroker); + return CAIRO_STATUS_SUCCESS; + +BAIL: + _cairo_rectilinear_stroker_fini (&rectilinear_stroker); + _cairo_boxes_clear (boxes); + return status; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-path-stroke-polygon.c b/local/recipes/libs/cairo/source/src/cairo-path-stroke-polygon.c new file mode 100644 index 0000000000..510ad3a6ae --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-path-stroke-polygon.c @@ -0,0 +1,1412 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +#define _DEFAULT_SOURCE /* for hypot() */ +#include "cairoint.h" + +#include "cairo-box-inline.h" +#include "cairo-boxes-private.h" +#include "cairo-contour-inline.h" +#include "cairo-contour-private.h" +#include "cairo-error-private.h" +#include "cairo-path-fixed-private.h" +#include "cairo-slope-private.h" + +#define DEBUG 0 + +struct stroker { + cairo_stroke_style_t style; + +#if DEBUG + cairo_contour_t path; +#endif + + struct stroke_contour { + /* Note that these are not strictly contours as they may intersect */ + cairo_contour_t contour; + } cw, ccw; + cairo_uint64_t contour_tolerance; + cairo_polygon_t *polygon; + + const cairo_matrix_t *ctm; + const cairo_matrix_t *ctm_inverse; + double tolerance; + double spline_cusp_tolerance; + double half_line_width; + cairo_bool_t ctm_det_positive; + + cairo_pen_t pen; + + cairo_point_t first_point; + + cairo_bool_t has_initial_sub_path; + + cairo_bool_t has_current_face; + cairo_stroke_face_t current_face; + + cairo_bool_t has_first_face; + cairo_stroke_face_t first_face; + + cairo_bool_t has_bounds; + cairo_box_t bounds; +}; + +static inline double +normalize_slope (double *dx, double *dy); + +static void +compute_face (const cairo_point_t *point, + const cairo_slope_t *dev_slope, + struct stroker *stroker, + cairo_stroke_face_t *face); + +static cairo_uint64_t +point_distance_sq (const cairo_point_t *p1, + const cairo_point_t *p2) +{ + int32_t dx = p1->x - p2->x; + int32_t dy = p1->y - p2->y; + return _cairo_int32x32_64_mul (dx, dx) + _cairo_int32x32_64_mul (dy, dy); +} + +static cairo_bool_t +within_tolerance (const cairo_point_t *p1, + const cairo_point_t *p2, + cairo_uint64_t tolerance) +{ + return FALSE; + return _cairo_int64_lt (point_distance_sq (p1, p2), tolerance); +} + +static void +contour_add_point (struct stroker *stroker, + struct stroke_contour *c, + const cairo_point_t *point) +{ + if (! within_tolerance (point, _cairo_contour_last_point (&c->contour), + stroker->contour_tolerance)) + _cairo_contour_add_point (&c->contour, point); + //*_cairo_contour_last_point (&c->contour) = *point; +} + +static void +translate_point (cairo_point_t *point, const cairo_point_t *offset) +{ + point->x += offset->x; + point->y += offset->y; +} + +static int +slope_compare_sgn (double dx1, double dy1, double dx2, double dy2) +{ + double c = (dx1 * dy2 - dx2 * dy1); + + if (c > 0) return 1; + if (c < 0) return -1; + return 0; +} + +/* + * Construct a fan around the midpoint using the vertices from pen between + * inpt and outpt. + */ +static void +add_fan (struct stroker *stroker, + const cairo_slope_t *in_vector, + const cairo_slope_t *out_vector, + const cairo_point_t *midpt, + cairo_bool_t clockwise, + struct stroke_contour *c) +{ + cairo_pen_t *pen = &stroker->pen; + int start, stop; + + if (stroker->has_bounds && + ! _cairo_box_contains_point (&stroker->bounds, midpt)) + return; + + assert (stroker->pen.num_vertices); + + if (clockwise) { + _cairo_pen_find_active_cw_vertices (pen, + in_vector, out_vector, + &start, &stop); + while (start != stop) { + cairo_point_t p = *midpt; + translate_point (&p, &pen->vertices[start].point); + contour_add_point (stroker, c, &p); + + if (++start == pen->num_vertices) + start = 0; + } + } else { + _cairo_pen_find_active_ccw_vertices (pen, + in_vector, out_vector, + &start, &stop); + while (start != stop) { + cairo_point_t p = *midpt; + translate_point (&p, &pen->vertices[start].point); + contour_add_point (stroker, c, &p); + + if (start-- == 0) + start += pen->num_vertices; + } + } +} + +static int +join_is_clockwise (const cairo_stroke_face_t *in, + const cairo_stroke_face_t *out) +{ + return _cairo_slope_compare (&in->dev_vector, &out->dev_vector) < 0; +} + +static void +inner_join (struct stroker *stroker, + const cairo_stroke_face_t *in, + const cairo_stroke_face_t *out, + int clockwise) +{ +#if 0 + cairo_point_t last; + const cairo_point_t *p, *outpt; + struct stroke_contour *inner; + cairo_int64_t d_p, d_last; + cairo_int64_t half_line_width; + cairo_bool_t negate; + + /* XXX line segments shorter than line-width */ + + if (clockwise) { + inner = &stroker->ccw; + outpt = &out->ccw; + negate = 1; + } else { + inner = &stroker->cw; + outpt = &out->cw; + negate = 0; + } + + half_line_width = CAIRO_FIXED_ONE*CAIRO_FIXED_ONE/2 * stroker->style.line_width * out->length + .5; + + /* On the inside, the previous end-point is always + * closer to the new face by definition. + */ + last = *_cairo_contour_last_point (&inner->contour); + d_last = distance_from_face (out, &last, negate); + _cairo_contour_remove_last_point (&inner->contour); + +prev: + if (inner->contour.chain.num_points == 0) { + contour_add_point (stroker, inner, outpt); + return; + } + p = _cairo_contour_last_point (&inner->contour); + d_p = distance_from_face (out, p, negate); + if (_cairo_int64_lt (d_p, half_line_width) && + !_cairo_int64_negative (distance_along_face (out, p))) + { + last = *p; + d_last = d_p; + _cairo_contour_remove_last_point (&inner->contour); + goto prev; + } + + compute_inner_joint (&last, d_last, p, d_p, half_line_width); + contour_add_point (stroker, inner, &last); +#else + const cairo_point_t *outpt; + struct stroke_contour *inner; + + if (clockwise) { + inner = &stroker->ccw; + outpt = &out->ccw; + } else { + inner = &stroker->cw; + outpt = &out->cw; + } + contour_add_point (stroker, inner, &in->point); + contour_add_point (stroker, inner, outpt); +#endif +} + +static void +inner_close (struct stroker *stroker, + const cairo_stroke_face_t *in, + cairo_stroke_face_t *out) +{ +#if 0 + cairo_point_t last; + const cairo_point_t *p, *outpt, *inpt; + struct stroke_contour *inner; + struct _cairo_contour_chain *chain; + + /* XXX line segments shorter than line-width */ + + if (join_is_clockwise (in, out)) { + inner = &stroker->ccw; + outpt = &in->ccw; + inpt = &out->ccw; + } else { + inner = &stroker->cw; + outpt = &in->cw; + inpt = &out->cw; + } + + if (inner->contour.chain.num_points == 0) { + contour_add_point (stroker, inner, &in->point); + contour_add_point (stroker, inner, inpt); + *_cairo_contour_first_point (&inner->contour) = + *_cairo_contour_last_point (&inner->contour); + return; + } + + line_width = stroker->style.line_width/2; + line_width *= CAIRO_FIXED_ONE; + + d_last = sign * distance_from_face (out, outpt); + last = *outpt; + + for (chain = &inner->contour.chain; chain; chain = chain->next) { + for (i = 0; i < chain->num_points; i++) { + p = &chain->points[i]; + if ((d_p = sign * distance_from_face (in, p)) >= line_width && + distance_from_edge (stroker, inpt, &last, p) < line_width) + { + goto out; + } + + if (p->x != last.x || p->y != last.y) { + last = *p; + d_last = d_p; + } + } + } +out: + + if (d_p != d_last) { + double dot = (line_width - d_last) / (d_p - d_last); + last.x += dot * (p->x - last.x); + last.y += dot * (p->y - last.y); + } + *_cairo_contour_last_point (&inner->contour) = last; + + for (chain = &inner->contour.chain; chain; chain = chain->next) { + for (i = 0; i < chain->num_points; i++) { + cairo_point_t *pp = &chain->points[i]; + if (pp == p) + return; + *pp = last; + } + } +#else + const cairo_point_t *inpt; + struct stroke_contour *inner; + + if (join_is_clockwise (in, out)) { + inner = &stroker->ccw; + inpt = &out->ccw; + } else { + inner = &stroker->cw; + inpt = &out->cw; + } + + contour_add_point (stroker, inner, &in->point); + contour_add_point (stroker, inner, inpt); + *_cairo_contour_first_point (&inner->contour) = + *_cairo_contour_last_point (&inner->contour); +#endif +} + +static void +outer_close (struct stroker *stroker, + const cairo_stroke_face_t *in, + const cairo_stroke_face_t *out) +{ + const cairo_point_t *inpt, *outpt; + struct stroke_contour *outer; + int clockwise; + + if (in->cw.x == out->cw.x && in->cw.y == out->cw.y && + in->ccw.x == out->ccw.x && in->ccw.y == out->ccw.y) + { + return; + } + + clockwise = join_is_clockwise (in, out); + if (clockwise) { + inpt = &in->cw; + outpt = &out->cw; + outer = &stroker->cw; + } else { + inpt = &in->ccw; + outpt = &out->ccw; + outer = &stroker->ccw; + } + + if (within_tolerance (inpt, outpt, stroker->contour_tolerance)) { + *_cairo_contour_first_point (&outer->contour) = + *_cairo_contour_last_point (&outer->contour); + return; + } + + switch (stroker->style.line_join) { + case CAIRO_LINE_JOIN_ROUND: + if ((in->dev_slope.x * out->dev_slope.x + + in->dev_slope.y * out->dev_slope.y) < stroker->spline_cusp_tolerance) + { + /* construct a fan around the common midpoint */ + add_fan (stroker, + &in->dev_vector, &out->dev_vector, &in->point, + clockwise, outer); + } /* else: bevel join */ + break; + + case CAIRO_LINE_JOIN_MITER: + default: { + /* dot product of incoming slope vector with outgoing slope vector */ + double in_dot_out = in->dev_slope.x * out->dev_slope.x + + in->dev_slope.y * out->dev_slope.y; + double ml = stroker->style.miter_limit; + + /* Check the miter limit -- lines meeting at an acute angle + * can generate long miters, the limit converts them to bevel + * + * Consider the miter join formed when two line segments + * meet at an angle psi: + * + * /.\ + * /. .\ + * /./ \.\ + * /./psi\.\ + * + * We can zoom in on the right half of that to see: + * + * |\ + * | \ psi/2 + * | \ + * | \ + * | \ + * | \ + * miter \ + * length \ + * | \ + * | .\ + * | . \ + * |. line \ + * \ width \ + * \ \ + * + * + * The right triangle in that figure, (the line-width side is + * shown faintly with three '.' characters), gives us the + * following expression relating miter length, angle and line + * width: + * + * 1 /sin (psi/2) = miter_length / line_width + * + * The right-hand side of this relationship is the same ratio + * in which the miter limit (ml) is expressed. We want to know + * when the miter length is within the miter limit. That is + * when the following condition holds: + * + * 1/sin(psi/2) <= ml + * 1 <= ml sin(psi/2) + * 1 <= ml² sin²(psi/2) + * 2 <= ml² 2 sin²(psi/2) + * 2·sin²(psi/2) = 1-cos(psi) + * 2 <= ml² (1-cos(psi)) + * + * in · out = |in| |out| cos (psi) + * + * in and out are both unit vectors, so: + * + * in · out = cos (psi) + * + * 2 <= ml² (1 - in · out) + * + */ + if (2 <= ml * ml * (1 + in_dot_out)) { + double x1, y1, x2, y2; + double mx, my; + double dx1, dx2, dy1, dy2; + double ix, iy; + double fdx1, fdy1, fdx2, fdy2; + double mdx, mdy; + + /* + * we've got the points already transformed to device + * space, but need to do some computation with them and + * also need to transform the slope from user space to + * device space + */ + /* outer point of incoming line face */ + x1 = _cairo_fixed_to_double (inpt->x); + y1 = _cairo_fixed_to_double (inpt->y); + dx1 = in->dev_slope.x; + dy1 = in->dev_slope.y; + + /* outer point of outgoing line face */ + x2 = _cairo_fixed_to_double (outpt->x); + y2 = _cairo_fixed_to_double (outpt->y); + dx2 = out->dev_slope.x; + dy2 = out->dev_slope.y; + + /* + * Compute the location of the outer corner of the miter. + * That's pretty easy -- just the intersection of the two + * outer edges. We've got slopes and points on each + * of those edges. Compute my directly, then compute + * mx by using the edge with the larger dy; that avoids + * dividing by values close to zero. + */ + my = (((x2 - x1) * dy1 * dy2 - y2 * dx2 * dy1 + y1 * dx1 * dy2) / + (dx1 * dy2 - dx2 * dy1)); + if (fabs (dy1) >= fabs (dy2)) + mx = (my - y1) * dx1 / dy1 + x1; + else + mx = (my - y2) * dx2 / dy2 + x2; + + /* + * When the two outer edges are nearly parallel, slight + * perturbations in the position of the outer points of the lines + * caused by representing them in fixed point form can cause the + * intersection point of the miter to move a large amount. If + * that moves the miter intersection from between the two faces, + * then draw a bevel instead. + */ + + ix = _cairo_fixed_to_double (in->point.x); + iy = _cairo_fixed_to_double (in->point.y); + + /* slope of one face */ + fdx1 = x1 - ix; fdy1 = y1 - iy; + + /* slope of the other face */ + fdx2 = x2 - ix; fdy2 = y2 - iy; + + /* slope from the intersection to the miter point */ + mdx = mx - ix; mdy = my - iy; + + /* + * Make sure the miter point line lies between the two + * faces by comparing the slopes + */ + if (slope_compare_sgn (fdx1, fdy1, mdx, mdy) != + slope_compare_sgn (fdx2, fdy2, mdx, mdy)) + { + cairo_point_t p; + + p.x = _cairo_fixed_from_double (mx); + p.y = _cairo_fixed_from_double (my); + + *_cairo_contour_last_point (&outer->contour) = p; + *_cairo_contour_first_point (&outer->contour) = p; + return; + } + } + break; + } + + case CAIRO_LINE_JOIN_BEVEL: + break; + } + contour_add_point (stroker, outer, outpt); +} + +static void +outer_join (struct stroker *stroker, + const cairo_stroke_face_t *in, + const cairo_stroke_face_t *out, + int clockwise) +{ + const cairo_point_t *inpt, *outpt; + struct stroke_contour *outer; + + if (in->cw.x == out->cw.x && in->cw.y == out->cw.y && + in->ccw.x == out->ccw.x && in->ccw.y == out->ccw.y) + { + return; + } + if (clockwise) { + inpt = &in->cw; + outpt = &out->cw; + outer = &stroker->cw; + } else { + inpt = &in->ccw; + outpt = &out->ccw; + outer = &stroker->ccw; + } + + switch (stroker->style.line_join) { + case CAIRO_LINE_JOIN_ROUND: + if ((in->dev_slope.x * out->dev_slope.x + + in->dev_slope.y * out->dev_slope.y) < stroker->spline_cusp_tolerance) + { + /* construct a fan around the common midpoint */ + add_fan (stroker, + &in->dev_vector, &out->dev_vector, &in->point, + clockwise, outer); + } /* else: bevel join */ + break; + + case CAIRO_LINE_JOIN_MITER: + default: { + /* dot product of incoming slope vector with outgoing slope vector */ + double in_dot_out = in->dev_slope.x * out->dev_slope.x + + in->dev_slope.y * out->dev_slope.y; + double ml = stroker->style.miter_limit; + + /* Check the miter limit -- lines meeting at an acute angle + * can generate long miters, the limit converts them to bevel + * + * Consider the miter join formed when two line segments + * meet at an angle psi: + * + * /.\ + * /. .\ + * /./ \.\ + * /./psi\.\ + * + * We can zoom in on the right half of that to see: + * + * |\ + * | \ psi/2 + * | \ + * | \ + * | \ + * | \ + * miter \ + * length \ + * | \ + * | .\ + * | . \ + * |. line \ + * \ width \ + * \ \ + * + * + * The right triangle in that figure, (the line-width side is + * shown faintly with three '.' characters), gives us the + * following expression relating miter length, angle and line + * width: + * + * 1 /sin (psi/2) = miter_length / line_width + * + * The right-hand side of this relationship is the same ratio + * in which the miter limit (ml) is expressed. We want to know + * when the miter length is within the miter limit. That is + * when the following condition holds: + * + * 1/sin(psi/2) <= ml + * 1 <= ml sin(psi/2) + * 1 <= ml² sin²(psi/2) + * 2 <= ml² 2 sin²(psi/2) + * 2·sin²(psi/2) = 1-cos(psi) + * 2 <= ml² (1-cos(psi)) + * + * in · out = |in| |out| cos (psi) + * + * in and out are both unit vectors, so: + * + * in · out = cos (psi) + * + * 2 <= ml² (1 - in · out) + * + */ + if (2 <= ml * ml * (1 + in_dot_out)) { + double x1, y1, x2, y2; + double mx, my; + double dx1, dx2, dy1, dy2; + double ix, iy; + double fdx1, fdy1, fdx2, fdy2; + double mdx, mdy; + + /* + * we've got the points already transformed to device + * space, but need to do some computation with them and + * also need to transform the slope from user space to + * device space + */ + /* outer point of incoming line face */ + x1 = _cairo_fixed_to_double (inpt->x); + y1 = _cairo_fixed_to_double (inpt->y); + dx1 = in->dev_slope.x; + dy1 = in->dev_slope.y; + + /* outer point of outgoing line face */ + x2 = _cairo_fixed_to_double (outpt->x); + y2 = _cairo_fixed_to_double (outpt->y); + dx2 = out->dev_slope.x; + dy2 = out->dev_slope.y; + + /* + * Compute the location of the outer corner of the miter. + * That's pretty easy -- just the intersection of the two + * outer edges. We've got slopes and points on each + * of those edges. Compute my directly, then compute + * mx by using the edge with the larger dy; that avoids + * dividing by values close to zero. + */ + my = (((x2 - x1) * dy1 * dy2 - y2 * dx2 * dy1 + y1 * dx1 * dy2) / + (dx1 * dy2 - dx2 * dy1)); + if (fabs (dy1) >= fabs (dy2)) + mx = (my - y1) * dx1 / dy1 + x1; + else + mx = (my - y2) * dx2 / dy2 + x2; + + /* + * When the two outer edges are nearly parallel, slight + * perturbations in the position of the outer points of the lines + * caused by representing them in fixed point form can cause the + * intersection point of the miter to move a large amount. If + * that moves the miter intersection from between the two faces, + * then draw a bevel instead. + */ + + ix = _cairo_fixed_to_double (in->point.x); + iy = _cairo_fixed_to_double (in->point.y); + + /* slope of one face */ + fdx1 = x1 - ix; fdy1 = y1 - iy; + + /* slope of the other face */ + fdx2 = x2 - ix; fdy2 = y2 - iy; + + /* slope from the intersection to the miter point */ + mdx = mx - ix; mdy = my - iy; + + /* + * Make sure the miter point line lies between the two + * faces by comparing the slopes + */ + if (slope_compare_sgn (fdx1, fdy1, mdx, mdy) != + slope_compare_sgn (fdx2, fdy2, mdx, mdy)) + { + cairo_point_t p; + + p.x = _cairo_fixed_from_double (mx); + p.y = _cairo_fixed_from_double (my); + + *_cairo_contour_last_point (&outer->contour) = p; + return; + } + } + break; + } + + case CAIRO_LINE_JOIN_BEVEL: + break; + } + contour_add_point (stroker,outer, outpt); +} + +static void +add_cap (struct stroker *stroker, + const cairo_stroke_face_t *f, + struct stroke_contour *c) +{ + switch (stroker->style.line_cap) { + case CAIRO_LINE_CAP_ROUND: { + cairo_slope_t slope; + + slope.dx = -f->dev_vector.dx; + slope.dy = -f->dev_vector.dy; + + add_fan (stroker, &f->dev_vector, &slope, &f->point, FALSE, c); + break; + } + + case CAIRO_LINE_CAP_SQUARE: { + cairo_slope_t fvector; + cairo_point_t p; + double dx, dy; + + dx = f->usr_vector.x; + dy = f->usr_vector.y; + dx *= stroker->half_line_width; + dy *= stroker->half_line_width; + cairo_matrix_transform_distance (stroker->ctm, &dx, &dy); + fvector.dx = _cairo_fixed_from_double (dx); + fvector.dy = _cairo_fixed_from_double (dy); + + p.x = f->ccw.x + fvector.dx; + p.y = f->ccw.y + fvector.dy; + contour_add_point (stroker, c, &p); + + p.x = f->cw.x + fvector.dx; + p.y = f->cw.y + fvector.dy; + contour_add_point (stroker, c, &p); + } + + case CAIRO_LINE_CAP_BUTT: + default: + break; + } + contour_add_point (stroker, c, &f->cw); +} + +static void +add_leading_cap (struct stroker *stroker, + const cairo_stroke_face_t *face, + struct stroke_contour *c) +{ + cairo_stroke_face_t reversed; + cairo_point_t t; + + reversed = *face; + + /* The initial cap needs an outward facing vector. Reverse everything */ + reversed.usr_vector.x = -reversed.usr_vector.x; + reversed.usr_vector.y = -reversed.usr_vector.y; + reversed.dev_vector.dx = -reversed.dev_vector.dx; + reversed.dev_vector.dy = -reversed.dev_vector.dy; + + t = reversed.cw; + reversed.cw = reversed.ccw; + reversed.ccw = t; + + add_cap (stroker, &reversed, c); +} + +static void +add_trailing_cap (struct stroker *stroker, + const cairo_stroke_face_t *face, + struct stroke_contour *c) +{ + add_cap (stroker, face, c); +} + +static inline double +normalize_slope (double *dx, double *dy) +{ + double dx0 = *dx, dy0 = *dy; + double mag; + + assert (dx0 != 0.0 || dy0 != 0.0); + + if (dx0 == 0.0) { + *dx = 0.0; + if (dy0 > 0.0) { + mag = dy0; + *dy = 1.0; + } else { + mag = -dy0; + *dy = -1.0; + } + } else if (dy0 == 0.0) { + *dy = 0.0; + if (dx0 > 0.0) { + mag = dx0; + *dx = 1.0; + } else { + mag = -dx0; + *dx = -1.0; + } + } else { + mag = hypot (dx0, dy0); + *dx = dx0 / mag; + *dy = dy0 / mag; + } + + return mag; +} + +static void +compute_face (const cairo_point_t *point, + const cairo_slope_t *dev_slope, + struct stroker *stroker, + cairo_stroke_face_t *face) +{ + double face_dx, face_dy; + cairo_point_t offset_ccw, offset_cw; + double slope_dx, slope_dy; + + slope_dx = _cairo_fixed_to_double (dev_slope->dx); + slope_dy = _cairo_fixed_to_double (dev_slope->dy); + face->length = normalize_slope (&slope_dx, &slope_dy); + face->dev_slope.x = slope_dx; + face->dev_slope.y = slope_dy; + + /* + * rotate to get a line_width/2 vector along the face, note that + * the vector must be rotated the right direction in device space, + * but by 90° in user space. So, the rotation depends on + * whether the ctm reflects or not, and that can be determined + * by looking at the determinant of the matrix. + */ + if (! _cairo_matrix_is_identity (stroker->ctm_inverse)) { + /* Normalize the matrix! */ + cairo_matrix_transform_distance (stroker->ctm_inverse, + &slope_dx, &slope_dy); + normalize_slope (&slope_dx, &slope_dy); + + if (stroker->ctm_det_positive) { + face_dx = - slope_dy * stroker->half_line_width; + face_dy = slope_dx * stroker->half_line_width; + } else { + face_dx = slope_dy * stroker->half_line_width; + face_dy = - slope_dx * stroker->half_line_width; + } + + /* back to device space */ + cairo_matrix_transform_distance (stroker->ctm, &face_dx, &face_dy); + } else { + face_dx = - slope_dy * stroker->half_line_width; + face_dy = slope_dx * stroker->half_line_width; + } + + offset_ccw.x = _cairo_fixed_from_double (face_dx); + offset_ccw.y = _cairo_fixed_from_double (face_dy); + offset_cw.x = -offset_ccw.x; + offset_cw.y = -offset_ccw.y; + + face->ccw = *point; + translate_point (&face->ccw, &offset_ccw); + + face->point = *point; + + face->cw = *point; + translate_point (&face->cw, &offset_cw); + + face->usr_vector.x = slope_dx; + face->usr_vector.y = slope_dy; + + face->dev_vector = *dev_slope; +} + +static void +add_caps (struct stroker *stroker) +{ + /* check for a degenerative sub_path */ + if (stroker->has_initial_sub_path && + ! stroker->has_first_face && + ! stroker->has_current_face && + stroker->style.line_cap == CAIRO_LINE_CAP_ROUND) + { + /* pick an arbitrary slope to use */ + cairo_slope_t slope = { CAIRO_FIXED_ONE, 0 }; + cairo_stroke_face_t face; + + /* arbitrarily choose first_point */ + compute_face (&stroker->first_point, &slope, stroker, &face); + + add_leading_cap (stroker, &face, &stroker->ccw); + add_trailing_cap (stroker, &face, &stroker->ccw); + + /* ensure the circle is complete */ + _cairo_contour_add_point (&stroker->ccw.contour, + _cairo_contour_first_point (&stroker->ccw.contour)); + + _cairo_polygon_add_contour (stroker->polygon, &stroker->ccw.contour); + _cairo_contour_reset (&stroker->ccw.contour); + } else { + if (stroker->has_current_face) + add_trailing_cap (stroker, &stroker->current_face, &stroker->ccw); + +#if DEBUG + { + FILE *file = fopen ("contours.txt", "a"); + _cairo_debug_print_contour (file, &stroker->path); + _cairo_debug_print_contour (file, &stroker->cw.contour); + _cairo_debug_print_contour (file, &stroker->ccw.contour); + fclose (file); + _cairo_contour_reset (&stroker->path); + } +#endif + + _cairo_polygon_add_contour (stroker->polygon, &stroker->ccw.contour); + _cairo_contour_reset (&stroker->ccw.contour); + + if (stroker->has_first_face) { + _cairo_contour_add_point (&stroker->ccw.contour, + &stroker->first_face.cw); + add_leading_cap (stroker, &stroker->first_face, &stroker->ccw); +#if DEBUG + { + FILE *file = fopen ("contours.txt", "a"); + _cairo_debug_print_contour (file, &stroker->ccw.contour); + fclose (file); + } +#endif + + _cairo_polygon_add_contour (stroker->polygon, + &stroker->ccw.contour); + _cairo_contour_reset (&stroker->ccw.contour); + } + + _cairo_polygon_add_contour (stroker->polygon, &stroker->cw.contour); + _cairo_contour_reset (&stroker->cw.contour); + } +} + +static cairo_status_t +close_path (void *closure); + +static cairo_status_t +move_to (void *closure, + const cairo_point_t *point) +{ + struct stroker *stroker = closure; + + /* Cap the start and end of the previous sub path as needed */ + add_caps (stroker); + + stroker->has_first_face = FALSE; + stroker->has_current_face = FALSE; + stroker->has_initial_sub_path = FALSE; + + stroker->first_point = *point; + +#if DEBUG + _cairo_contour_add_point (&stroker->path, point); +#endif + + stroker->current_face.point = *point; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +line_to (void *closure, + const cairo_point_t *point) +{ + struct stroker *stroker = closure; + cairo_stroke_face_t start; + cairo_point_t *p1 = &stroker->current_face.point; + cairo_slope_t dev_slope; + + stroker->has_initial_sub_path = TRUE; + + if (p1->x == point->x && p1->y == point->y) + return CAIRO_STATUS_SUCCESS; + +#if DEBUG + _cairo_contour_add_point (&stroker->path, point); +#endif + + _cairo_slope_init (&dev_slope, p1, point); + compute_face (p1, &dev_slope, stroker, &start); + + if (stroker->has_current_face) { + int clockwise = _cairo_slope_compare (&stroker->current_face.dev_vector, + &start.dev_vector); + if (clockwise) { + clockwise = clockwise < 0; + /* Join with final face from previous segment */ + if (! within_tolerance (&stroker->current_face.ccw, &start.ccw, + stroker->contour_tolerance) || + ! within_tolerance (&stroker->current_face.cw, &start.cw, + stroker->contour_tolerance)) + { + outer_join (stroker, &stroker->current_face, &start, clockwise); + inner_join (stroker, &stroker->current_face, &start, clockwise); + } + } + } else { + if (! stroker->has_first_face) { + /* Save sub path's first face in case needed for closing join */ + stroker->first_face = start; + stroker->has_first_face = TRUE; + } + stroker->has_current_face = TRUE; + + contour_add_point (stroker, &stroker->cw, &start.cw); + contour_add_point (stroker, &stroker->ccw, &start.ccw); + } + + stroker->current_face = start; + stroker->current_face.point = *point; + stroker->current_face.ccw.x += dev_slope.dx; + stroker->current_face.ccw.y += dev_slope.dy; + stroker->current_face.cw.x += dev_slope.dx; + stroker->current_face.cw.y += dev_slope.dy; + + contour_add_point (stroker, &stroker->cw, &stroker->current_face.cw); + contour_add_point (stroker, &stroker->ccw, &stroker->current_face.ccw); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +spline_to (void *closure, + const cairo_point_t *point, + const cairo_slope_t *tangent) +{ + struct stroker *stroker = closure; + cairo_stroke_face_t face; + +#if DEBUG + _cairo_contour_add_point (&stroker->path, point); +#endif + if ((tangent->dx | tangent->dy) == 0) { + struct stroke_contour *outer; + cairo_point_t t; + int clockwise; + + face = stroker->current_face; + + face.usr_vector.x = -face.usr_vector.x; + face.usr_vector.y = -face.usr_vector.y; + face.dev_vector.dx = -face.dev_vector.dx; + face.dev_vector.dy = -face.dev_vector.dy; + + t = face.cw; + face.cw = face.ccw; + face.ccw = t; + + clockwise = join_is_clockwise (&stroker->current_face, &face); + if (clockwise) { + outer = &stroker->cw; + } else { + outer = &stroker->ccw; + } + + add_fan (stroker, + &stroker->current_face.dev_vector, + &face.dev_vector, + &stroker->current_face.point, + clockwise, outer); + } else { + compute_face (point, tangent, stroker, &face); + + if ((face.dev_slope.x * stroker->current_face.dev_slope.x + + face.dev_slope.y * stroker->current_face.dev_slope.y) < stroker->spline_cusp_tolerance) + { + struct stroke_contour *outer; + int clockwise = join_is_clockwise (&stroker->current_face, &face); + + stroker->current_face.cw.x += face.point.x - stroker->current_face.point.x; + stroker->current_face.cw.y += face.point.y - stroker->current_face.point.y; + contour_add_point (stroker, &stroker->cw, &stroker->current_face.cw); + + stroker->current_face.ccw.x += face.point.x - stroker->current_face.point.x; + stroker->current_face.ccw.y += face.point.y - stroker->current_face.point.y; + contour_add_point (stroker, &stroker->ccw, &stroker->current_face.ccw); + + if (clockwise) { + outer = &stroker->cw; + } else { + outer = &stroker->ccw; + } + add_fan (stroker, + &stroker->current_face.dev_vector, + &face.dev_vector, + &stroker->current_face.point, + clockwise, outer); + } + + contour_add_point (stroker, &stroker->cw, &face.cw); + contour_add_point (stroker, &stroker->ccw, &face.ccw); + } + + stroker->current_face = face; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +curve_to (void *closure, + const cairo_point_t *b, + const cairo_point_t *c, + const cairo_point_t *d) +{ + struct stroker *stroker = closure; + cairo_spline_t spline; + cairo_stroke_face_t face; + + if (stroker->has_bounds && + ! _cairo_spline_intersects (&stroker->current_face.point, b, c, d, + &stroker->bounds)) + return line_to (closure, d); + + if (! _cairo_spline_init (&spline, spline_to, stroker, + &stroker->current_face.point, b, c, d)) + return line_to (closure, d); + + compute_face (&stroker->current_face.point, &spline.initial_slope, + stroker, &face); + + if (stroker->has_current_face) { + int clockwise = join_is_clockwise (&stroker->current_face, &face); + /* Join with final face from previous segment */ + outer_join (stroker, &stroker->current_face, &face, clockwise); + inner_join (stroker, &stroker->current_face, &face, clockwise); + } else { + if (! stroker->has_first_face) { + /* Save sub path's first face in case needed for closing join */ + stroker->first_face = face; + stroker->has_first_face = TRUE; + } + stroker->has_current_face = TRUE; + + contour_add_point (stroker, &stroker->cw, &face.cw); + contour_add_point (stroker, &stroker->ccw, &face.ccw); + } + stroker->current_face = face; + + return _cairo_spline_decompose (&spline, stroker->tolerance); +} + +static cairo_status_t +close_path (void *closure) +{ + struct stroker *stroker = closure; + cairo_status_t status; + + status = line_to (stroker, &stroker->first_point); + if (unlikely (status)) + return status; + + if (stroker->has_first_face && stroker->has_current_face) { + /* Join first and final faces of sub path */ + outer_close (stroker, &stroker->current_face, &stroker->first_face); + inner_close (stroker, &stroker->current_face, &stroker->first_face); +#if 0 + *_cairo_contour_first_point (&stroker->ccw.contour) = + *_cairo_contour_last_point (&stroker->ccw.contour); + + *_cairo_contour_first_point (&stroker->cw.contour) = + *_cairo_contour_last_point (&stroker->cw.contour); +#endif + + _cairo_polygon_add_contour (stroker->polygon, &stroker->cw.contour); + _cairo_polygon_add_contour (stroker->polygon, &stroker->ccw.contour); + +#if DEBUG + { + FILE *file = fopen ("contours.txt", "a"); + _cairo_debug_print_contour (file, &stroker->path); + _cairo_debug_print_contour (file, &stroker->cw.contour); + _cairo_debug_print_contour (file, &stroker->ccw.contour); + fclose (file); + + _cairo_contour_reset (&stroker->path); + } +#endif + _cairo_contour_reset (&stroker->cw.contour); + _cairo_contour_reset (&stroker->ccw.contour); + } else { + /* Cap the start and end of the sub path as needed */ + add_caps (stroker); + } + + stroker->has_initial_sub_path = FALSE; + stroker->has_first_face = FALSE; + stroker->has_current_face = FALSE; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_path_fixed_stroke_to_polygon (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_polygon_t *polygon) +{ + struct stroker stroker; + cairo_status_t status; + + if (style->num_dashes) { + return _cairo_path_fixed_stroke_dashed_to_polygon (path, + style, + ctm, + ctm_inverse, + tolerance, + polygon); + } + + stroker.has_bounds = polygon->num_limits; + if (stroker.has_bounds) { + /* Extend the bounds in each direction to account for the maximum area + * we might generate trapezoids, to capture line segments that are + * outside of the bounds but which might generate rendering that's + * within bounds. + */ + double dx, dy; + cairo_fixed_t fdx, fdy; + int i; + + stroker.bounds = polygon->limits[0]; + for (i = 1; i < polygon->num_limits; i++) + _cairo_box_add_box (&stroker.bounds, &polygon->limits[i]); + + _cairo_stroke_style_max_distance_from_path (style, path, ctm, &dx, &dy); + fdx = _cairo_fixed_from_double (dx); + fdy = _cairo_fixed_from_double (dy); + + stroker.bounds.p1.x -= fdx; + stroker.bounds.p2.x += fdx; + stroker.bounds.p1.y -= fdy; + stroker.bounds.p2.y += fdy; + } + + stroker.style = *style; + stroker.ctm = ctm; + stroker.ctm_inverse = ctm_inverse; + stroker.tolerance = tolerance; + stroker.half_line_width = style->line_width / 2.; + + /* If `CAIRO_LINE_JOIN_ROUND` is selected and a joint's `arc height` + * is greater than `tolerance` then two segments are joined with + * round-join, otherwise bevel-join is used. + * + * (See https://gitlab.freedesktop.org/cairo/cairo/-/merge_requests/372#note_1698225 + * for an illustration.) + * + * `Arc height` is the distance from the center of arc's chord to + * the center of the arc. It is also the difference of arc's radius + * and the "distance from a point where segments are joined to the + * chord" (distance to the chord). Arc's radius is the half of a line + * width and the "distance to the chord" is equal to "half of a line width" + * times `cos(half the angle between segment vectors)`. So + * + * arc_height = w/2 - w/2 * cos(phi/2), + * + * where `w/2` is the "half of a line width". + * + * Using the double angle cosine formula we can express the `cos(phi/2)` + * with just `cos(phi)` which is also the dot product of segments' + * unit vectors. + * + * cos(phi/2) = sqrt ( (1 + cos(phi)) / 2 ); + * cos(phi/2) is in [0; 1] range, cannot be negative; + * + * cos(phi) = a . b = (ax * bx + ay * by), + * + * where `a` and `b` are unit vectors of the segments to be joined. + * + * Since `arc height` should be greater than the `tolerance` to produce + * a round-join we can write + * + * w/2 * (1 - cos(phi/2)) > tolerance; + * 1 - tolerance / (w/2) > cos(phi/2); [!] + * + * which can be rewritten with the above double angle formula to + * + * cos(phi) < 2 * ( 1 - tolerance / (w/2) )^2 - 1, + * + * [!] Note that `w/2` is in [tolerance; +inf] range, since `cos(phi/2)` + * cannot be negative. The left part of the above inequality is the + * dot product and the right part is the `spline_cusp_tolerance`: + * + * (ax * bx + ay * by) < spline_cusp_tolerance. + * + * In the code below only the `spline_cusp_tolerance` is calculated. + * The dot product is calculated later, in the condition expression + * itself. "Half of a line width" must be scaled with CTM for tolerance + * condition to be properly met. Also, since `arch height` cannot exceed + * the "half of a line width" and since `cos(phi/2)` cannot be negative, + * when `tolerance` is greater than the "half of a line width" the + * bevel-join should be produced. + */ + double scaled_hlw = hypot(stroker.half_line_width * ctm->xx, + stroker.half_line_width * ctm->yx); + + if (scaled_hlw <= tolerance) { + stroker.spline_cusp_tolerance = -1.0; + } else { + stroker.spline_cusp_tolerance = 1 - tolerance / scaled_hlw; + stroker.spline_cusp_tolerance *= stroker.spline_cusp_tolerance; + stroker.spline_cusp_tolerance *= 2; + stroker.spline_cusp_tolerance -= 1; + } + + stroker.ctm_det_positive = + _cairo_matrix_compute_determinant (ctm) >= 0.0; + + stroker.pen.num_vertices = 0; + if (path->has_curve_to || + style->line_join == CAIRO_LINE_JOIN_ROUND || + style->line_cap == CAIRO_LINE_CAP_ROUND) { + status = _cairo_pen_init (&stroker.pen, + stroker.half_line_width, + tolerance, ctm); + if (unlikely (status)) + return status; + + /* If the line width is so small that the pen is reduced to a + single point, then we have nothing to do. */ + if (stroker.pen.num_vertices <= 1) + return CAIRO_STATUS_SUCCESS; + } + + stroker.has_current_face = FALSE; + stroker.has_first_face = FALSE; + stroker.has_initial_sub_path = FALSE; + +#if DEBUG + remove ("contours.txt"); + remove ("polygons.txt"); + _cairo_contour_init (&stroker.path, 0); +#endif + _cairo_contour_init (&stroker.cw.contour, 1); + _cairo_contour_init (&stroker.ccw.contour, -1); + tolerance *= CAIRO_FIXED_ONE; + tolerance *= tolerance; + stroker.contour_tolerance = tolerance; + stroker.polygon = polygon; + + status = _cairo_path_fixed_interpret (path, + move_to, + line_to, + curve_to, + close_path, + &stroker); + /* Cap the start and end of the final sub path as needed */ + if (likely (status == CAIRO_STATUS_SUCCESS)) + add_caps (&stroker); + + _cairo_contour_fini (&stroker.cw.contour); + _cairo_contour_fini (&stroker.ccw.contour); + if (stroker.pen.num_vertices) + _cairo_pen_fini (&stroker.pen); + +#if DEBUG + { + FILE *file = fopen ("polygons.txt", "a"); + _cairo_debug_print_polygon (file, polygon); + fclose (file); + } +#endif + + return status; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-path-stroke-traps.c b/local/recipes/libs/cairo/source/src/cairo-path-stroke-traps.c new file mode 100644 index 0000000000..4eabf6583e --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-path-stroke-traps.c @@ -0,0 +1,1168 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2013 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-box-inline.h" +#include "cairo-path-fixed-private.h" +#include "cairo-slope-private.h" +#include "cairo-stroke-dash-private.h" +#include "cairo-traps-private.h" + +#include + +struct stroker { + const cairo_stroke_style_t *style; + + const cairo_matrix_t *ctm; + const cairo_matrix_t *ctm_inverse; + double spline_cusp_tolerance; + double half_line_width; + double tolerance; + double ctm_determinant; + cairo_bool_t ctm_det_positive; + cairo_line_join_t line_join; + + cairo_traps_t *traps; + + cairo_pen_t pen; + + cairo_point_t first_point; + + cairo_bool_t has_initial_sub_path; + + cairo_bool_t has_current_face; + cairo_stroke_face_t current_face; + + cairo_bool_t has_first_face; + cairo_stroke_face_t first_face; + + cairo_stroker_dash_t dash; + + cairo_bool_t has_bounds; + cairo_box_t tight_bounds; + cairo_box_t line_bounds; + cairo_box_t join_bounds; +}; + +static cairo_status_t +stroker_init (struct stroker *stroker, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_traps_t *traps) +{ + cairo_status_t status; + + stroker->style = style; + stroker->ctm = ctm; + stroker->ctm_inverse = NULL; + if (! _cairo_matrix_is_identity (ctm_inverse)) + stroker->ctm_inverse = ctm_inverse; + stroker->line_join = style->line_join; + stroker->half_line_width = style->line_width / 2.0; + stroker->tolerance = tolerance; + stroker->traps = traps; + + /* If `CAIRO_LINE_JOIN_ROUND` is selected and a joint's `arc height` + * is greater than `tolerance` then two segments are joined with + * round-join, otherwise bevel-join is used. + * + * `Arc height` is the difference of the "half of a line width" and + * the "half of a line width" times `cos(half the angle between segment vectors)`. + * + * See detailed description in the `_cairo_path_fixed_stroke_to_polygon()` + * function in the `cairo-path-stroke-polygon.c` file or follow the + * https://gitlab.freedesktop.org/cairo/cairo/-/merge_requests/372#note_1698225 + * link to see the detailed description with an illustration. + */ + double scaled_hlw = hypot(stroker->half_line_width * ctm->xx, + stroker->half_line_width * ctm->yx); + + if (scaled_hlw <= tolerance) { + stroker->spline_cusp_tolerance = -1.0; + } else { + stroker->spline_cusp_tolerance = 1 - tolerance / scaled_hlw; + stroker->spline_cusp_tolerance *= stroker->spline_cusp_tolerance; + stroker->spline_cusp_tolerance *= 2; + stroker->spline_cusp_tolerance -= 1; + } + + stroker->ctm_determinant = _cairo_matrix_compute_determinant (stroker->ctm); + stroker->ctm_det_positive = stroker->ctm_determinant >= 0.0; + + status = _cairo_pen_init (&stroker->pen, + stroker->half_line_width, + tolerance, ctm); + if (unlikely (status)) + return status; + + stroker->has_current_face = FALSE; + stroker->has_first_face = FALSE; + stroker->has_initial_sub_path = FALSE; + + _cairo_stroker_dash_init (&stroker->dash, style); + + stroker->has_bounds = traps->num_limits; + if (stroker->has_bounds) { + /* Extend the bounds in each direction to account for the maximum area + * we might generate trapezoids, to capture line segments that are outside + * of the bounds but which might generate rendering that's within bounds. + */ + double dx, dy; + cairo_fixed_t fdx, fdy; + + stroker->tight_bounds = traps->bounds; + + _cairo_stroke_style_max_distance_from_path (stroker->style, path, + stroker->ctm, &dx, &dy); + + _cairo_stroke_style_max_line_distance_from_path (stroker->style, path, + stroker->ctm, &dx, &dy); + + fdx = _cairo_fixed_from_double (dx); + fdy = _cairo_fixed_from_double (dy); + + stroker->line_bounds = stroker->tight_bounds; + stroker->line_bounds.p1.x -= fdx; + stroker->line_bounds.p2.x += fdx; + stroker->line_bounds.p1.y -= fdy; + stroker->line_bounds.p2.y += fdy; + + _cairo_stroke_style_max_join_distance_from_path (stroker->style, path, + stroker->ctm, &dx, &dy); + + fdx = _cairo_fixed_from_double (dx); + fdy = _cairo_fixed_from_double (dy); + + stroker->join_bounds = stroker->tight_bounds; + stroker->join_bounds.p1.x -= fdx; + stroker->join_bounds.p2.x += fdx; + stroker->join_bounds.p1.y -= fdy; + stroker->join_bounds.p2.y += fdy; + } + + return CAIRO_STATUS_SUCCESS; +} + +static void +stroker_fini (struct stroker *stroker) +{ + _cairo_pen_fini (&stroker->pen); +} + +static void +translate_point (cairo_point_t *point, cairo_point_t *offset) +{ + point->x += offset->x; + point->y += offset->y; +} + +static int +join_is_clockwise (const cairo_stroke_face_t *in, + const cairo_stroke_face_t *out) +{ + return _cairo_slope_compare (&in->dev_vector, &out->dev_vector) < 0; +} + +static int +slope_compare_sgn (double dx1, double dy1, double dx2, double dy2) +{ + double c = dx1 * dy2 - dx2 * dy1; + if (c > 0) return 1; + if (c < 0) return -1; + return 0; +} + +static cairo_bool_t +stroker_intersects_join (const struct stroker *stroker, + const cairo_point_t *in, + const cairo_point_t *out) +{ + cairo_line_t segment; + + if (! stroker->has_bounds) + return TRUE; + + segment.p1 = *in; + segment.p2 = *out; + return _cairo_box_intersects_line_segment (&stroker->join_bounds, &segment); +} + +static void +join (struct stroker *stroker, + cairo_stroke_face_t *in, + cairo_stroke_face_t *out) +{ + int clockwise = join_is_clockwise (out, in); + cairo_point_t *inpt, *outpt; + + if (in->cw.x == out->cw.x && + in->cw.y == out->cw.y && + in->ccw.x == out->ccw.x && + in->ccw.y == out->ccw.y) + { + return; + } + + if (clockwise) { + inpt = &in->ccw; + outpt = &out->ccw; + } else { + inpt = &in->cw; + outpt = &out->cw; + } + + if (! stroker_intersects_join (stroker, inpt, outpt)) + return; + + switch (stroker->line_join) { + case CAIRO_LINE_JOIN_ROUND: + /* construct a fan around the common midpoint */ + if ((in->dev_slope.x * out->dev_slope.x + + in->dev_slope.y * out->dev_slope.y) < stroker->spline_cusp_tolerance) + { + int start, stop; + cairo_point_t tri[3], edges[4]; + cairo_pen_t *pen = &stroker->pen; + + edges[0] = in->cw; + edges[1] = in->ccw; + tri[0] = in->point; + tri[1] = *inpt; + if (clockwise) { + _cairo_pen_find_active_ccw_vertices (pen, + &in->dev_vector, &out->dev_vector, + &start, &stop); + while (start != stop) { + tri[2] = in->point; + translate_point (&tri[2], &pen->vertices[start].point); + edges[2] = in->point; + edges[3] = tri[2]; + _cairo_traps_tessellate_triangle_with_edges (stroker->traps, + tri, edges); + tri[1] = tri[2]; + edges[0] = edges[2]; + edges[1] = edges[3]; + + if (start-- == 0) + start += pen->num_vertices; + } + } else { + _cairo_pen_find_active_cw_vertices (pen, + &in->dev_vector, &out->dev_vector, + &start, &stop); + while (start != stop) { + tri[2] = in->point; + translate_point (&tri[2], &pen->vertices[start].point); + edges[2] = in->point; + edges[3] = tri[2]; + _cairo_traps_tessellate_triangle_with_edges (stroker->traps, + tri, edges); + tri[1] = tri[2]; + edges[0] = edges[2]; + edges[1] = edges[3]; + + if (++start == pen->num_vertices) + start = 0; + } + } + tri[2] = *outpt; + edges[2] = out->cw; + edges[3] = out->ccw; + _cairo_traps_tessellate_triangle_with_edges (stroker->traps, + tri, edges); + } else { + cairo_point_t t[] = { { in->point.x, in->point.y}, { inpt->x, inpt->y }, { outpt->x, outpt->y } }; + cairo_point_t e[] = { { in->cw.x, in->cw.y}, { in->ccw.x, in->ccw.y }, + { out->cw.x, out->cw.y}, { out->ccw.x, out->ccw.y } }; + _cairo_traps_tessellate_triangle_with_edges (stroker->traps, t, e); + } + break; + + case CAIRO_LINE_JOIN_MITER: + default: { + /* dot product of incoming slope vector with outgoing slope vector */ + double in_dot_out = (-in->usr_vector.x * out->usr_vector.x + + -in->usr_vector.y * out->usr_vector.y); + double ml = stroker->style->miter_limit; + + /* Check the miter limit -- lines meeting at an acute angle + * can generate long miters, the limit converts them to bevel + * + * Consider the miter join formed when two line segments + * meet at an angle psi: + * + * /.\ + * /. .\ + * /./ \.\ + * /./psi\.\ + * + * We can zoom in on the right half of that to see: + * + * |\ + * | \ psi/2 + * | \ + * | \ + * | \ + * | \ + * miter \ + * length \ + * | \ + * | .\ + * | . \ + * |. line \ + * \ width \ + * \ \ + * + * + * The right triangle in that figure, (the line-width side is + * shown faintly with three '.' characters), gives us the + * following expression relating miter length, angle and line + * width: + * + * 1 /sin (psi/2) = miter_length / line_width + * + * The right-hand side of this relationship is the same ratio + * in which the miter limit (ml) is expressed. We want to know + * when the miter length is within the miter limit. That is + * when the following condition holds: + * + * 1/sin(psi/2) <= ml + * 1 <= ml sin(psi/2) + * 1 <= ml² sin²(psi/2) + * 2 <= ml² 2 sin²(psi/2) + * 2·sin²(psi/2) = 1-cos(psi) + * 2 <= ml² (1-cos(psi)) + * + * in · out = |in| |out| cos (psi) + * + * in and out are both unit vectors, so: + * + * in · out = cos (psi) + * + * 2 <= ml² (1 - in · out) + * + */ + if (2 <= ml * ml * (1 - in_dot_out)) { + double x1, y1, x2, y2; + double mx, my; + double dx1, dx2, dy1, dy2; + cairo_point_t outer; + cairo_point_t quad[4]; + double ix, iy; + double fdx1, fdy1, fdx2, fdy2; + double mdx, mdy; + + /* + * we've got the points already transformed to device + * space, but need to do some computation with them and + * also need to transform the slope from user space to + * device space + */ + /* outer point of incoming line face */ + x1 = _cairo_fixed_to_double (inpt->x); + y1 = _cairo_fixed_to_double (inpt->y); + dx1 = in->usr_vector.x; + dy1 = in->usr_vector.y; + cairo_matrix_transform_distance (stroker->ctm, &dx1, &dy1); + + /* outer point of outgoing line face */ + x2 = _cairo_fixed_to_double (outpt->x); + y2 = _cairo_fixed_to_double (outpt->y); + dx2 = out->usr_vector.x; + dy2 = out->usr_vector.y; + cairo_matrix_transform_distance (stroker->ctm, &dx2, &dy2); + + /* + * Compute the location of the outer corner of the miter. + * That's pretty easy -- just the intersection of the two + * outer edges. We've got slopes and points on each + * of those edges. Compute my directly, then compute + * mx by using the edge with the larger dy; that avoids + * dividing by values close to zero. + */ + my = (((x2 - x1) * dy1 * dy2 - y2 * dx2 * dy1 + y1 * dx1 * dy2) / + (dx1 * dy2 - dx2 * dy1)); + if (fabs (dy1) >= fabs (dy2)) + mx = (my - y1) * dx1 / dy1 + x1; + else + mx = (my - y2) * dx2 / dy2 + x2; + + /* + * When the two outer edges are nearly parallel, slight + * perturbations in the position of the outer points of the lines + * caused by representing them in fixed point form can cause the + * intersection point of the miter to move a large amount. If + * that moves the miter intersection from between the two faces, + * then draw a bevel instead. + */ + + ix = _cairo_fixed_to_double (in->point.x); + iy = _cairo_fixed_to_double (in->point.y); + + /* slope of one face */ + fdx1 = x1 - ix; fdy1 = y1 - iy; + + /* slope of the other face */ + fdx2 = x2 - ix; fdy2 = y2 - iy; + + /* slope from the intersection to the miter point */ + mdx = mx - ix; mdy = my - iy; + + /* + * Make sure the miter point line lies between the two + * faces by comparing the slopes + */ + if (slope_compare_sgn (fdx1, fdy1, mdx, mdy) != + slope_compare_sgn (fdx2, fdy2, mdx, mdy)) + { + /* + * Draw the quadrilateral + */ + outer.x = _cairo_fixed_from_double (mx); + outer.y = _cairo_fixed_from_double (my); + + quad[0] = in->point; + quad[1] = *inpt; + quad[2] = outer; + quad[3] = *outpt; + + _cairo_traps_tessellate_convex_quad (stroker->traps, quad); + break; + } + } + } + /* fall through ... */ + case CAIRO_LINE_JOIN_BEVEL: { + cairo_point_t t[] = { { in->point.x, in->point.y }, { inpt->x, inpt->y }, { outpt->x, outpt->y } }; + cairo_point_t e[] = { { in->cw.x, in->cw.y }, { in->ccw.x, in->ccw.y }, + { out->cw.x, out->cw.y }, { out->ccw.x, out->ccw.y } }; + _cairo_traps_tessellate_triangle_with_edges (stroker->traps, t, e); + break; + } + } +} + +static void +add_cap (struct stroker *stroker, cairo_stroke_face_t *f) +{ + switch (stroker->style->line_cap) { + case CAIRO_LINE_CAP_ROUND: { + int start, stop; + cairo_slope_t in_slope, out_slope; + cairo_point_t tri[3], edges[4]; + cairo_pen_t *pen = &stroker->pen; + + in_slope = f->dev_vector; + out_slope.dx = -in_slope.dx; + out_slope.dy = -in_slope.dy; + _cairo_pen_find_active_cw_vertices (pen, &in_slope, &out_slope, + &start, &stop); + edges[0] = f->cw; + edges[1] = f->ccw; + tri[0] = f->point; + tri[1] = f->cw; + while (start != stop) { + tri[2] = f->point; + translate_point (&tri[2], &pen->vertices[start].point); + edges[2] = f->point; + edges[3] = tri[2]; + _cairo_traps_tessellate_triangle_with_edges (stroker->traps, + tri, edges); + + tri[1] = tri[2]; + edges[0] = edges[2]; + edges[1] = edges[3]; + if (++start == pen->num_vertices) + start = 0; + } + tri[2] = f->ccw; + edges[2] = f->cw; + edges[3] = f->ccw; + _cairo_traps_tessellate_triangle_with_edges (stroker->traps, + tri, edges); + break; + } + + case CAIRO_LINE_CAP_SQUARE: { + double dx, dy; + cairo_slope_t fvector; + cairo_point_t quad[4]; + + dx = f->usr_vector.x; + dy = f->usr_vector.y; + dx *= stroker->half_line_width; + dy *= stroker->half_line_width; + cairo_matrix_transform_distance (stroker->ctm, &dx, &dy); + fvector.dx = _cairo_fixed_from_double (dx); + fvector.dy = _cairo_fixed_from_double (dy); + + quad[0] = f->cw; + quad[1].x = f->cw.x + fvector.dx; + quad[1].y = f->cw.y + fvector.dy; + quad[2].x = f->ccw.x + fvector.dx; + quad[2].y = f->ccw.y + fvector.dy; + quad[3] = f->ccw; + + _cairo_traps_tessellate_convex_quad (stroker->traps, quad); + break; + } + + case CAIRO_LINE_CAP_BUTT: + default: + break; + } +} + +static void +add_leading_cap (struct stroker *stroker, + cairo_stroke_face_t *face) +{ + cairo_stroke_face_t reversed; + cairo_point_t t; + + reversed = *face; + + /* The initial cap needs an outward facing vector. Reverse everything */ + reversed.usr_vector.x = -reversed.usr_vector.x; + reversed.usr_vector.y = -reversed.usr_vector.y; + reversed.dev_vector.dx = -reversed.dev_vector.dx; + reversed.dev_vector.dy = -reversed.dev_vector.dy; + t = reversed.cw; + reversed.cw = reversed.ccw; + reversed.ccw = t; + + add_cap (stroker, &reversed); +} + +static void +add_trailing_cap (struct stroker *stroker, cairo_stroke_face_t *face) +{ + add_cap (stroker, face); +} + +static inline double +normalize_slope (double *dx, double *dy) +{ + double dx0 = *dx, dy0 = *dy; + + if (dx0 == 0.0 && dy0 == 0.0) + return 0; + + if (dx0 == 0.0) { + *dx = 0.0; + if (dy0 > 0.0) { + *dy = 1.0; + return dy0; + } else { + *dy = -1.0; + return -dy0; + } + } else if (dy0 == 0.0) { + *dy = 0.0; + if (dx0 > 0.0) { + *dx = 1.0; + return dx0; + } else { + *dx = -1.0; + return -dx0; + } + } else { + double mag = hypot (dx0, dy0); + *dx = dx0 / mag; + *dy = dy0 / mag; + return mag; + } +} + +static void +compute_face (const cairo_point_t *point, + const cairo_slope_t *dev_slope, + struct stroker *stroker, + cairo_stroke_face_t *face) +{ + double face_dx, face_dy; + cairo_point_t offset_ccw, offset_cw; + double slope_dx, slope_dy; + + slope_dx = _cairo_fixed_to_double (dev_slope->dx); + slope_dy = _cairo_fixed_to_double (dev_slope->dy); + face->length = normalize_slope (&slope_dx, &slope_dy); + face->dev_slope.x = slope_dx; + face->dev_slope.y = slope_dy; + + /* + * rotate to get a line_width/2 vector along the face, note that + * the vector must be rotated the right direction in device space, + * but by 90° in user space. So, the rotation depends on + * whether the ctm reflects or not, and that can be determined + * by looking at the determinant of the matrix. + */ + if (stroker->ctm_inverse) { + cairo_matrix_transform_distance (stroker->ctm_inverse, &slope_dx, &slope_dy); + normalize_slope (&slope_dx, &slope_dy); + + if (stroker->ctm_det_positive) { + face_dx = - slope_dy * stroker->half_line_width; + face_dy = slope_dx * stroker->half_line_width; + } else { + face_dx = slope_dy * stroker->half_line_width; + face_dy = - slope_dx * stroker->half_line_width; + } + + /* back to device space */ + cairo_matrix_transform_distance (stroker->ctm, &face_dx, &face_dy); + } else { + face_dx = - slope_dy * stroker->half_line_width; + face_dy = slope_dx * stroker->half_line_width; + } + + offset_ccw.x = _cairo_fixed_from_double (face_dx); + offset_ccw.y = _cairo_fixed_from_double (face_dy); + offset_cw.x = -offset_ccw.x; + offset_cw.y = -offset_ccw.y; + + face->ccw = *point; + translate_point (&face->ccw, &offset_ccw); + + face->point = *point; + + face->cw = *point; + translate_point (&face->cw, &offset_cw); + + face->usr_vector.x = slope_dx; + face->usr_vector.y = slope_dy; + + face->dev_vector = *dev_slope; +} + +static void +add_caps (struct stroker *stroker) +{ + /* check for a degenerative sub_path */ + if (stroker->has_initial_sub_path && + !stroker->has_first_face && + !stroker->has_current_face && + stroker->style->line_cap == CAIRO_LINE_CAP_ROUND) + { + /* pick an arbitrary slope to use */ + cairo_slope_t slope = { CAIRO_FIXED_ONE, 0 }; + cairo_stroke_face_t face; + + /* arbitrarily choose first_point + * first_point and current_point should be the same */ + compute_face (&stroker->first_point, &slope, stroker, &face); + + add_leading_cap (stroker, &face); + add_trailing_cap (stroker, &face); + } + + if (stroker->has_first_face) + add_leading_cap (stroker, &stroker->first_face); + + if (stroker->has_current_face) + add_trailing_cap (stroker, &stroker->current_face); +} + +static cairo_bool_t +stroker_intersects_edge (const struct stroker *stroker, + const cairo_stroke_face_t *start, + const cairo_stroke_face_t *end) +{ + cairo_box_t box; + + if (! stroker->has_bounds) + return TRUE; + + if (_cairo_box_contains_point (&stroker->tight_bounds, &start->cw)) + return TRUE; + box.p2 = box.p1 = start->cw; + + if (_cairo_box_contains_point (&stroker->tight_bounds, &start->ccw)) + return TRUE; + _cairo_box_add_point (&box, &start->ccw); + + if (_cairo_box_contains_point (&stroker->tight_bounds, &end->cw)) + return TRUE; + _cairo_box_add_point (&box, &end->cw); + + if (_cairo_box_contains_point (&stroker->tight_bounds, &end->ccw)) + return TRUE; + _cairo_box_add_point (&box, &end->ccw); + + return (box.p2.x > stroker->tight_bounds.p1.x && + box.p1.x < stroker->tight_bounds.p2.x && + box.p2.y > stroker->tight_bounds.p1.y && + box.p1.y < stroker->tight_bounds.p2.y); +} + +static void +add_sub_edge (struct stroker *stroker, + const cairo_point_t *p1, const cairo_point_t *p2, + const cairo_slope_t *dev_slope, + cairo_stroke_face_t *start, cairo_stroke_face_t *end) +{ + cairo_point_t rectangle[4]; + + compute_face (p1, dev_slope, stroker, start); + + *end = *start; + end->point = *p2; + rectangle[0].x = p2->x - p1->x; + rectangle[0].y = p2->y - p1->y; + translate_point (&end->ccw, &rectangle[0]); + translate_point (&end->cw, &rectangle[0]); + + if (p1->x == p2->x && p1->y == p2->y) + return; + + if (! stroker_intersects_edge (stroker, start, end)) + return; + + rectangle[0] = start->cw; + rectangle[1] = start->ccw; + rectangle[2] = end->ccw; + rectangle[3] = end->cw; + + _cairo_traps_tessellate_convex_quad (stroker->traps, rectangle); +} + +static cairo_status_t +move_to (void *closure, const cairo_point_t *point) +{ + struct stroker *stroker = closure; + + /* Cap the start and end of the previous sub path as needed */ + add_caps (stroker); + + stroker->first_point = *point; + stroker->current_face.point = *point; + + stroker->has_first_face = FALSE; + stroker->has_current_face = FALSE; + stroker->has_initial_sub_path = FALSE; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +move_to_dashed (void *closure, const cairo_point_t *point) +{ + /* reset the dash pattern for new sub paths */ + struct stroker *stroker = closure; + + _cairo_stroker_dash_start (&stroker->dash); + return move_to (closure, point); +} + +static cairo_status_t +line_to (void *closure, const cairo_point_t *point) +{ + struct stroker *stroker = closure; + cairo_stroke_face_t start, end; + const cairo_point_t *p1 = &stroker->current_face.point; + const cairo_point_t *p2 = point; + cairo_slope_t dev_slope; + + stroker->has_initial_sub_path = TRUE; + + if (p1->x == p2->x && p1->y == p2->y) + return CAIRO_STATUS_SUCCESS; + + _cairo_slope_init (&dev_slope, p1, p2); + add_sub_edge (stroker, p1, p2, &dev_slope, &start, &end); + + if (stroker->has_current_face) { + /* Join with final face from previous segment */ + join (stroker, &stroker->current_face, &start); + } else if (!stroker->has_first_face) { + /* Save sub path's first face in case needed for closing join */ + stroker->first_face = start; + stroker->has_first_face = TRUE; + } + stroker->current_face = end; + stroker->has_current_face = TRUE; + + return CAIRO_STATUS_SUCCESS; +} + +/* + * Dashed lines. Cap each dash end, join around turns when on + */ +static cairo_status_t +line_to_dashed (void *closure, const cairo_point_t *point) +{ + struct stroker *stroker = closure; + double mag, remain, step_length = 0; + double slope_dx, slope_dy; + double dx2, dy2; + cairo_stroke_face_t sub_start, sub_end; + const cairo_point_t *p1 = &stroker->current_face.point; + const cairo_point_t *p2 = point; + cairo_slope_t dev_slope; + cairo_line_t segment; + cairo_bool_t fully_in_bounds; + + stroker->has_initial_sub_path = stroker->dash.dash_starts_on; + + if (p1->x == p2->x && p1->y == p2->y) + return CAIRO_STATUS_SUCCESS; + + fully_in_bounds = TRUE; + if (stroker->has_bounds && + (! _cairo_box_contains_point (&stroker->join_bounds, p1) || + ! _cairo_box_contains_point (&stroker->join_bounds, p2))) + { + fully_in_bounds = FALSE; + } + + _cairo_slope_init (&dev_slope, p1, p2); + + slope_dx = _cairo_fixed_to_double (p2->x - p1->x); + slope_dy = _cairo_fixed_to_double (p2->y - p1->y); + + if (stroker->ctm_inverse) + cairo_matrix_transform_distance (stroker->ctm_inverse, &slope_dx, &slope_dy); + mag = normalize_slope (&slope_dx, &slope_dy); + if (mag <= DBL_EPSILON) + return CAIRO_STATUS_SUCCESS; + + remain = mag; + segment.p1 = *p1; + while (remain) { + step_length = MIN (stroker->dash.dash_remain, remain); + remain -= step_length; + dx2 = slope_dx * (mag - remain); + dy2 = slope_dy * (mag - remain); + cairo_matrix_transform_distance (stroker->ctm, &dx2, &dy2); + segment.p2.x = _cairo_fixed_from_double (dx2) + p1->x; + segment.p2.y = _cairo_fixed_from_double (dy2) + p1->y; + + if (stroker->dash.dash_on && + (fully_in_bounds || + (! stroker->has_first_face && stroker->dash.dash_starts_on) || + _cairo_box_intersects_line_segment (&stroker->join_bounds, &segment))) + { + add_sub_edge (stroker, + &segment.p1, &segment.p2, + &dev_slope, + &sub_start, &sub_end); + + if (stroker->has_current_face) { + /* Join with final face from previous segment */ + join (stroker, &stroker->current_face, &sub_start); + + stroker->has_current_face = FALSE; + } else if (! stroker->has_first_face && stroker->dash.dash_starts_on) { + /* Save sub path's first face in case needed for closing join */ + stroker->first_face = sub_start; + stroker->has_first_face = TRUE; + } else { + /* Cap dash start if not connecting to a previous segment */ + add_leading_cap (stroker, &sub_start); + } + + if (remain) { + /* Cap dash end if not at end of segment */ + add_trailing_cap (stroker, &sub_end); + } else { + stroker->current_face = sub_end; + stroker->has_current_face = TRUE; + } + } else { + if (stroker->has_current_face) { + /* Cap final face from previous segment */ + add_trailing_cap (stroker, &stroker->current_face); + + stroker->has_current_face = FALSE; + } + } + + _cairo_stroker_dash_step (&stroker->dash, step_length); + segment.p1 = segment.p2; + } + + if (stroker->dash.dash_on && ! stroker->has_current_face) { + /* This segment ends on a transition to dash_on, compute a new face + * and add cap for the beginning of the next dash_on step. + * + * Note: this will create a degenerate cap if this is not the last line + * in the path. Whether this behaviour is desirable or not is debatable. + * On one side these degenerate caps can not be reproduced with regular + * path stroking. + * On the other hand, Acroread 7 also produces the degenerate caps. + */ + compute_face (point, &dev_slope, stroker, &stroker->current_face); + + add_leading_cap (stroker, &stroker->current_face); + + stroker->has_current_face = TRUE; + } else + stroker->current_face.point = *point; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +add_point (void *closure, + const cairo_point_t *point, + const cairo_slope_t *tangent) +{ + return line_to_dashed (closure, point); +}; + +static cairo_status_t +spline_to (void *closure, + const cairo_point_t *point, + const cairo_slope_t *tangent) +{ + struct stroker *stroker = closure; + cairo_stroke_face_t face; + + if ((tangent->dx | tangent->dy) == 0) { + cairo_point_t t; + + face = stroker->current_face; + + face.usr_vector.x = -face.usr_vector.x; + face.usr_vector.y = -face.usr_vector.y; + face.dev_slope.x = -face.dev_slope.x; + face.dev_slope.y = -face.dev_slope.y; + face.dev_vector.dx = -face.dev_vector.dx; + face.dev_vector.dy = -face.dev_vector.dy; + + t = face.cw; + face.cw = face.ccw; + face.ccw = t; + + join (stroker, &stroker->current_face, &face); + } else { + cairo_point_t rectangle[4]; + + compute_face (&stroker->current_face.point, tangent, stroker, &face); + join (stroker, &stroker->current_face, &face); + + rectangle[0] = face.cw; + rectangle[1] = face.ccw; + + rectangle[2].x = point->x - face.point.x; + rectangle[2].y = point->y - face.point.y; + face.point = *point; + translate_point (&face.ccw, &rectangle[2]); + translate_point (&face.cw, &rectangle[2]); + + rectangle[2] = face.ccw; + rectangle[3] = face.cw; + + _cairo_traps_tessellate_convex_quad (stroker->traps, rectangle); + } + + stroker->current_face = face; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +curve_to (void *closure, + const cairo_point_t *b, + const cairo_point_t *c, + const cairo_point_t *d) +{ + struct stroker *stroker = closure; + cairo_line_join_t line_join_save; + cairo_spline_t spline; + cairo_stroke_face_t face; + cairo_status_t status; + + if (stroker->has_bounds && + ! _cairo_spline_intersects (&stroker->current_face.point, b, c, d, + &stroker->line_bounds)) + return line_to (closure, d); + + if (! _cairo_spline_init (&spline, spline_to, stroker, + &stroker->current_face.point, b, c, d)) + return line_to (closure, d); + + compute_face (&stroker->current_face.point, &spline.initial_slope, + stroker, &face); + + if (stroker->has_current_face) { + /* Join with final face from previous segment */ + join (stroker, &stroker->current_face, &face); + } else { + if (! stroker->has_first_face) { + /* Save sub path's first face in case needed for closing join */ + stroker->first_face = face; + stroker->has_first_face = TRUE; + } + stroker->has_current_face = TRUE; + } + stroker->current_face = face; + + /* Temporarily modify the stroker to use round joins to guarantee + * smooth stroked curves. */ + line_join_save = stroker->line_join; + stroker->line_join = CAIRO_LINE_JOIN_ROUND; + + status = _cairo_spline_decompose (&spline, stroker->tolerance); + + stroker->line_join = line_join_save; + + return status; +} + +static cairo_status_t +curve_to_dashed (void *closure, + const cairo_point_t *b, + const cairo_point_t *c, + const cairo_point_t *d) +{ + struct stroker *stroker = closure; + cairo_spline_t spline; + cairo_line_join_t line_join_save; + cairo_spline_add_point_func_t func; + cairo_status_t status; + + func = add_point; + + if (stroker->has_bounds && + ! _cairo_spline_intersects (&stroker->current_face.point, b, c, d, + &stroker->line_bounds)) + return func (closure, d, NULL); + + if (! _cairo_spline_init (&spline, func, stroker, + &stroker->current_face.point, b, c, d)) + return func (closure, d, NULL); + + /* Temporarily modify the stroker to use round joins to guarantee + * smooth stroked curves. */ + line_join_save = stroker->line_join; + stroker->line_join = CAIRO_LINE_JOIN_ROUND; + + status = _cairo_spline_decompose (&spline, stroker->tolerance); + + stroker->line_join = line_join_save; + + return status; +} + +static cairo_status_t +_close_path (struct stroker *stroker) +{ + if (stroker->has_first_face && stroker->has_current_face) { + /* Join first and final faces of sub path */ + join (stroker, &stroker->current_face, &stroker->first_face); + } else { + /* Cap the start and end of the sub path as needed */ + add_caps (stroker); + } + + stroker->has_initial_sub_path = FALSE; + stroker->has_first_face = FALSE; + stroker->has_current_face = FALSE; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +close_path (void *closure) +{ + struct stroker *stroker = closure; + cairo_status_t status; + + status = line_to (stroker, &stroker->first_point); + if (unlikely (status)) + return status; + + return _close_path (stroker); +} + +static cairo_status_t +close_path_dashed (void *closure) +{ + struct stroker *stroker = closure; + cairo_status_t status; + + status = line_to_dashed (stroker, &stroker->first_point); + if (unlikely (status)) + return status; + + return _close_path (stroker); +} + +cairo_int_status_t +_cairo_path_fixed_stroke_to_traps (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_traps_t *traps) +{ + struct stroker stroker; + cairo_status_t status; + + status = stroker_init (&stroker, path, style, + ctm, ctm_inverse, tolerance, + traps); + if (unlikely (status)) + return status; + + if (stroker.dash.dashed) + status = _cairo_path_fixed_interpret (path, + move_to_dashed, + line_to_dashed, + curve_to_dashed, + close_path_dashed, + &stroker); + else + status = _cairo_path_fixed_interpret (path, + move_to, + line_to, + curve_to, + close_path, + &stroker); + assert(status == CAIRO_STATUS_SUCCESS); + add_caps (&stroker); + + stroker_fini (&stroker); + + return traps->status; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-path-stroke-tristrip.c b/local/recipes/libs/cairo/source/src/cairo-path-stroke-tristrip.c new file mode 100644 index 0000000000..3178765608 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-path-stroke-tristrip.c @@ -0,0 +1,1088 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +#define _DEFAULT_SOURCE /* for hypot() */ +#include "cairoint.h" + +#include "cairo-box-inline.h" +#include "cairo-boxes-private.h" +#include "cairo-error-private.h" +#include "cairo-path-fixed-private.h" +#include "cairo-slope-private.h" +#include "cairo-tristrip-private.h" + +struct stroker { + cairo_stroke_style_t style; + + cairo_tristrip_t *strip; + + const cairo_matrix_t *ctm; + const cairo_matrix_t *ctm_inverse; + double tolerance; + cairo_bool_t ctm_det_positive; + + cairo_pen_t pen; + + cairo_bool_t has_sub_path; + + cairo_point_t first_point; + + cairo_bool_t has_current_face; + cairo_stroke_face_t current_face; + + cairo_bool_t has_first_face; + cairo_stroke_face_t first_face; + + cairo_box_t limit; + cairo_bool_t has_limits; +}; + +static inline double +normalize_slope (double *dx, double *dy); + +static void +compute_face (const cairo_point_t *point, + const cairo_slope_t *dev_slope, + struct stroker *stroker, + cairo_stroke_face_t *face); + +static void +translate_point (cairo_point_t *point, const cairo_point_t *offset) +{ + point->x += offset->x; + point->y += offset->y; +} + +static int +slope_compare_sgn (double dx1, double dy1, double dx2, double dy2) +{ + double c = (dx1 * dy2 - dx2 * dy1); + + if (c > 0) return 1; + if (c < 0) return -1; + return 0; +} + +static inline int +range_step (int i, int step, int max) +{ + i += step; + if (i < 0) + i = max - 1; + if (i >= max) + i = 0; + return i; +} + +/* + * Construct a fan around the midpoint using the vertices from pen between + * inpt and outpt. + */ +static void +add_fan (struct stroker *stroker, + const cairo_slope_t *in_vector, + const cairo_slope_t *out_vector, + const cairo_point_t *midpt, + const cairo_point_t *inpt, + const cairo_point_t *outpt, + cairo_bool_t clockwise) +{ + int start, stop, step, i, npoints; + + if (clockwise) { + step = 1; + + start = _cairo_pen_find_active_cw_vertex_index (&stroker->pen, + in_vector); + if (_cairo_slope_compare (&stroker->pen.vertices[start].slope_cw, + in_vector) < 0) + start = range_step (start, 1, stroker->pen.num_vertices); + + stop = _cairo_pen_find_active_cw_vertex_index (&stroker->pen, + out_vector); + if (_cairo_slope_compare (&stroker->pen.vertices[stop].slope_ccw, + out_vector) > 0) + { + stop = range_step (stop, -1, stroker->pen.num_vertices); + if (_cairo_slope_compare (&stroker->pen.vertices[stop].slope_cw, + in_vector) < 0) + return; + } + + npoints = stop - start; + } else { + step = -1; + + start = _cairo_pen_find_active_ccw_vertex_index (&stroker->pen, + in_vector); + if (_cairo_slope_compare (&stroker->pen.vertices[start].slope_ccw, + in_vector) < 0) + start = range_step (start, -1, stroker->pen.num_vertices); + + stop = _cairo_pen_find_active_ccw_vertex_index (&stroker->pen, + out_vector); + if (_cairo_slope_compare (&stroker->pen.vertices[stop].slope_cw, + out_vector) > 0) + { + stop = range_step (stop, 1, stroker->pen.num_vertices); + if (_cairo_slope_compare (&stroker->pen.vertices[stop].slope_ccw, + in_vector) < 0) + return; + } + + npoints = start - stop; + } + stop = range_step (stop, step, stroker->pen.num_vertices); + if (npoints < 0) + npoints += stroker->pen.num_vertices; + if (npoints <= 1) + return; + + for (i = start; + i != stop; + i = range_step (i, step, stroker->pen.num_vertices)) + { + cairo_point_t p = *midpt; + translate_point (&p, &stroker->pen.vertices[i].point); + //contour_add_point (stroker, c, &p); + } +} + +static int +join_is_clockwise (const cairo_stroke_face_t *in, + const cairo_stroke_face_t *out) +{ + return _cairo_slope_compare (&in->dev_vector, &out->dev_vector) < 0; +} + +static void +inner_join (struct stroker *stroker, + const cairo_stroke_face_t *in, + const cairo_stroke_face_t *out, + int clockwise) +{ + const cairo_point_t *outpt; + + if (clockwise) { + outpt = &out->ccw; + } else { + outpt = &out->cw; + } + //contour_add_point (stroker, inner, &in->point); + //contour_add_point (stroker, inner, outpt); +} + +static void +inner_close (struct stroker *stroker, + const cairo_stroke_face_t *in, + cairo_stroke_face_t *out) +{ + const cairo_point_t *inpt; + + if (join_is_clockwise (in, out)) { + inpt = &out->ccw; + } else { + inpt = &out->cw; + } + + //contour_add_point (stroker, inner, &in->point); + //contour_add_point (stroker, inner, inpt); + //*_cairo_contour_first_point (&inner->contour) = + //*_cairo_contour_last_point (&inner->contour); +} + +static void +outer_close (struct stroker *stroker, + const cairo_stroke_face_t *in, + const cairo_stroke_face_t *out) +{ + const cairo_point_t *inpt, *outpt; + int clockwise; + + if (in->cw.x == out->cw.x && in->cw.y == out->cw.y && + in->ccw.x == out->ccw.x && in->ccw.y == out->ccw.y) + { + return; + } + clockwise = join_is_clockwise (in, out); + if (clockwise) { + inpt = &in->cw; + outpt = &out->cw; + } else { + inpt = &in->ccw; + outpt = &out->ccw; + } + + switch (stroker->style.line_join) { + case CAIRO_LINE_JOIN_ROUND: + /* construct a fan around the common midpoint */ + add_fan (stroker, + &in->dev_vector, + &out->dev_vector, + &in->point, inpt, outpt, + clockwise); + break; + + case CAIRO_LINE_JOIN_MITER: + default: { + /* dot product of incoming slope vector with outgoing slope vector */ + double in_dot_out = -in->usr_vector.x * out->usr_vector.x + + -in->usr_vector.y * out->usr_vector.y; + double ml = stroker->style.miter_limit; + + /* Check the miter limit -- lines meeting at an acute angle + * can generate long miters, the limit converts them to bevel + * + * Consider the miter join formed when two line segments + * meet at an angle psi: + * + * /.\ + * /. .\ + * /./ \.\ + * /./psi\.\ + * + * We can zoom in on the right half of that to see: + * + * |\ + * | \ psi/2 + * | \ + * | \ + * | \ + * | \ + * miter \ + * length \ + * | \ + * | .\ + * | . \ + * |. line \ + * \ width \ + * \ \ + * + * + * The right triangle in that figure, (the line-width side is + * shown faintly with three '.' characters), gives us the + * following expression relating miter length, angle and line + * width: + * + * 1 /sin (psi/2) = miter_length / line_width + * + * The right-hand side of this relationship is the same ratio + * in which the miter limit (ml) is expressed. We want to know + * when the miter length is within the miter limit. That is + * when the following condition holds: + * + * 1/sin(psi/2) <= ml + * 1 <= ml sin(psi/2) + * 1 <= ml² sin²(psi/2) + * 2 <= ml² 2 sin²(psi/2) + * 2·sin²(psi/2) = 1-cos(psi) + * 2 <= ml² (1-cos(psi)) + * + * in · out = |in| |out| cos (psi) + * + * in and out are both unit vectors, so: + * + * in · out = cos (psi) + * + * 2 <= ml² (1 - in · out) + * + */ + if (2 <= ml * ml * (1 - in_dot_out)) { + double x1, y1, x2, y2; + double mx, my; + double dx1, dx2, dy1, dy2; + double ix, iy; + double fdx1, fdy1, fdx2, fdy2; + double mdx, mdy; + + /* + * we've got the points already transformed to device + * space, but need to do some computation with them and + * also need to transform the slope from user space to + * device space + */ + /* outer point of incoming line face */ + x1 = _cairo_fixed_to_double (inpt->x); + y1 = _cairo_fixed_to_double (inpt->y); + dx1 = in->usr_vector.x; + dy1 = in->usr_vector.y; + cairo_matrix_transform_distance (stroker->ctm, &dx1, &dy1); + + /* outer point of outgoing line face */ + x2 = _cairo_fixed_to_double (outpt->x); + y2 = _cairo_fixed_to_double (outpt->y); + dx2 = out->usr_vector.x; + dy2 = out->usr_vector.y; + cairo_matrix_transform_distance (stroker->ctm, &dx2, &dy2); + + /* + * Compute the location of the outer corner of the miter. + * That's pretty easy -- just the intersection of the two + * outer edges. We've got slopes and points on each + * of those edges. Compute my directly, then compute + * mx by using the edge with the larger dy; that avoids + * dividing by values close to zero. + */ + my = (((x2 - x1) * dy1 * dy2 - y2 * dx2 * dy1 + y1 * dx1 * dy2) / + (dx1 * dy2 - dx2 * dy1)); + if (fabs (dy1) >= fabs (dy2)) + mx = (my - y1) * dx1 / dy1 + x1; + else + mx = (my - y2) * dx2 / dy2 + x2; + + /* + * When the two outer edges are nearly parallel, slight + * perturbations in the position of the outer points of the lines + * caused by representing them in fixed point form can cause the + * intersection point of the miter to move a large amount. If + * that moves the miter intersection from between the two faces, + * then draw a bevel instead. + */ + + ix = _cairo_fixed_to_double (in->point.x); + iy = _cairo_fixed_to_double (in->point.y); + + /* slope of one face */ + fdx1 = x1 - ix; fdy1 = y1 - iy; + + /* slope of the other face */ + fdx2 = x2 - ix; fdy2 = y2 - iy; + + /* slope from the intersection to the miter point */ + mdx = mx - ix; mdy = my - iy; + + /* + * Make sure the miter point line lies between the two + * faces by comparing the slopes + */ + if (slope_compare_sgn (fdx1, fdy1, mdx, mdy) != + slope_compare_sgn (fdx2, fdy2, mdx, mdy)) + { + cairo_point_t p; + + p.x = _cairo_fixed_from_double (mx); + p.y = _cairo_fixed_from_double (my); + + //*_cairo_contour_last_point (&outer->contour) = p; + //*_cairo_contour_first_point (&outer->contour) = p; + return; + } + } + break; + } + + case CAIRO_LINE_JOIN_BEVEL: + break; + } + //contour_add_point (stroker, outer, outpt); +} + +static void +outer_join (struct stroker *stroker, + const cairo_stroke_face_t *in, + const cairo_stroke_face_t *out, + int clockwise) +{ + const cairo_point_t *inpt, *outpt; + + if (in->cw.x == out->cw.x && in->cw.y == out->cw.y && + in->ccw.x == out->ccw.x && in->ccw.y == out->ccw.y) + { + return; + } + if (clockwise) { + inpt = &in->cw; + outpt = &out->cw; + } else { + inpt = &in->ccw; + outpt = &out->ccw; + } + + switch (stroker->style.line_join) { + case CAIRO_LINE_JOIN_ROUND: + /* construct a fan around the common midpoint */ + add_fan (stroker, + &in->dev_vector, + &out->dev_vector, + &in->point, inpt, outpt, + clockwise); + break; + + case CAIRO_LINE_JOIN_MITER: + default: { + /* dot product of incoming slope vector with outgoing slope vector */ + double in_dot_out = -in->usr_vector.x * out->usr_vector.x + + -in->usr_vector.y * out->usr_vector.y; + double ml = stroker->style.miter_limit; + + /* Check the miter limit -- lines meeting at an acute angle + * can generate long miters, the limit converts them to bevel + * + * Consider the miter join formed when two line segments + * meet at an angle psi: + * + * /.\ + * /. .\ + * /./ \.\ + * /./psi\.\ + * + * We can zoom in on the right half of that to see: + * + * |\ + * | \ psi/2 + * | \ + * | \ + * | \ + * | \ + * miter \ + * length \ + * | \ + * | .\ + * | . \ + * |. line \ + * \ width \ + * \ \ + * + * + * The right triangle in that figure, (the line-width side is + * shown faintly with three '.' characters), gives us the + * following expression relating miter length, angle and line + * width: + * + * 1 /sin (psi/2) = miter_length / line_width + * + * The right-hand side of this relationship is the same ratio + * in which the miter limit (ml) is expressed. We want to know + * when the miter length is within the miter limit. That is + * when the following condition holds: + * + * 1/sin(psi/2) <= ml + * 1 <= ml sin(psi/2) + * 1 <= ml² sin²(psi/2) + * 2 <= ml² 2 sin²(psi/2) + * 2·sin²(psi/2) = 1-cos(psi) + * 2 <= ml² (1-cos(psi)) + * + * in · out = |in| |out| cos (psi) + * + * in and out are both unit vectors, so: + * + * in · out = cos (psi) + * + * 2 <= ml² (1 - in · out) + * + */ + if (2 <= ml * ml * (1 - in_dot_out)) { + double x1, y1, x2, y2; + double mx, my; + double dx1, dx2, dy1, dy2; + double ix, iy; + double fdx1, fdy1, fdx2, fdy2; + double mdx, mdy; + + /* + * we've got the points already transformed to device + * space, but need to do some computation with them and + * also need to transform the slope from user space to + * device space + */ + /* outer point of incoming line face */ + x1 = _cairo_fixed_to_double (inpt->x); + y1 = _cairo_fixed_to_double (inpt->y); + dx1 = in->usr_vector.x; + dy1 = in->usr_vector.y; + cairo_matrix_transform_distance (stroker->ctm, &dx1, &dy1); + + /* outer point of outgoing line face */ + x2 = _cairo_fixed_to_double (outpt->x); + y2 = _cairo_fixed_to_double (outpt->y); + dx2 = out->usr_vector.x; + dy2 = out->usr_vector.y; + cairo_matrix_transform_distance (stroker->ctm, &dx2, &dy2); + + /* + * Compute the location of the outer corner of the miter. + * That's pretty easy -- just the intersection of the two + * outer edges. We've got slopes and points on each + * of those edges. Compute my directly, then compute + * mx by using the edge with the larger dy; that avoids + * dividing by values close to zero. + */ + my = (((x2 - x1) * dy1 * dy2 - y2 * dx2 * dy1 + y1 * dx1 * dy2) / + (dx1 * dy2 - dx2 * dy1)); + if (fabs (dy1) >= fabs (dy2)) + mx = (my - y1) * dx1 / dy1 + x1; + else + mx = (my - y2) * dx2 / dy2 + x2; + + /* + * When the two outer edges are nearly parallel, slight + * perturbations in the position of the outer points of the lines + * caused by representing them in fixed point form can cause the + * intersection point of the miter to move a large amount. If + * that moves the miter intersection from between the two faces, + * then draw a bevel instead. + */ + + ix = _cairo_fixed_to_double (in->point.x); + iy = _cairo_fixed_to_double (in->point.y); + + /* slope of one face */ + fdx1 = x1 - ix; fdy1 = y1 - iy; + + /* slope of the other face */ + fdx2 = x2 - ix; fdy2 = y2 - iy; + + /* slope from the intersection to the miter point */ + mdx = mx - ix; mdy = my - iy; + + /* + * Make sure the miter point line lies between the two + * faces by comparing the slopes + */ + if (slope_compare_sgn (fdx1, fdy1, mdx, mdy) != + slope_compare_sgn (fdx2, fdy2, mdx, mdy)) + { + cairo_point_t p; + + p.x = _cairo_fixed_from_double (mx); + p.y = _cairo_fixed_from_double (my); + + //*_cairo_contour_last_point (&outer->contour) = p; + return; + } + } + break; + } + + case CAIRO_LINE_JOIN_BEVEL: + break; + } + //contour_add_point (stroker,outer, outpt); +} + +static void +add_cap (struct stroker *stroker, + const cairo_stroke_face_t *f) +{ + switch (stroker->style.line_cap) { + case CAIRO_LINE_CAP_ROUND: { + cairo_slope_t slope; + + slope.dx = -f->dev_vector.dx; + slope.dy = -f->dev_vector.dy; + + add_fan (stroker, &f->dev_vector, &slope, + &f->point, &f->ccw, &f->cw, + FALSE); + break; + } + + case CAIRO_LINE_CAP_SQUARE: { + double dx, dy; + cairo_slope_t fvector; + cairo_point_t quad[4]; + + dx = f->usr_vector.x; + dy = f->usr_vector.y; + dx *= stroker->style.line_width / 2.0; + dy *= stroker->style.line_width / 2.0; + cairo_matrix_transform_distance (stroker->ctm, &dx, &dy); + fvector.dx = _cairo_fixed_from_double (dx); + fvector.dy = _cairo_fixed_from_double (dy); + + quad[0] = f->ccw; + quad[1].x = f->ccw.x + fvector.dx; + quad[1].y = f->ccw.y + fvector.dy; + quad[2].x = f->cw.x + fvector.dx; + quad[2].y = f->cw.y + fvector.dy; + quad[3] = f->cw; + + //contour_add_point (stroker, c, &quad[1]); + //contour_add_point (stroker, c, &quad[2]); + } + + case CAIRO_LINE_CAP_BUTT: + default: + break; + } + //contour_add_point (stroker, c, &f->cw); +} + +static void +add_leading_cap (struct stroker *stroker, + const cairo_stroke_face_t *face) +{ + cairo_stroke_face_t reversed; + cairo_point_t t; + + reversed = *face; + + /* The initial cap needs an outward facing vector. Reverse everything */ + reversed.usr_vector.x = -reversed.usr_vector.x; + reversed.usr_vector.y = -reversed.usr_vector.y; + reversed.dev_vector.dx = -reversed.dev_vector.dx; + reversed.dev_vector.dy = -reversed.dev_vector.dy; + + t = reversed.cw; + reversed.cw = reversed.ccw; + reversed.ccw = t; + + add_cap (stroker, &reversed); +} + +static void +add_trailing_cap (struct stroker *stroker, + const cairo_stroke_face_t *face) +{ + add_cap (stroker, face); +} + +static inline double +normalize_slope (double *dx, double *dy) +{ + double dx0 = *dx, dy0 = *dy; + double mag; + + assert (dx0 != 0.0 || dy0 != 0.0); + + if (dx0 == 0.0) { + *dx = 0.0; + if (dy0 > 0.0) { + mag = dy0; + *dy = 1.0; + } else { + mag = -dy0; + *dy = -1.0; + } + } else if (dy0 == 0.0) { + *dy = 0.0; + if (dx0 > 0.0) { + mag = dx0; + *dx = 1.0; + } else { + mag = -dx0; + *dx = -1.0; + } + } else { + mag = hypot (dx0, dy0); + *dx = dx0 / mag; + *dy = dy0 / mag; + } + + return mag; +} + +static void +compute_face (const cairo_point_t *point, + const cairo_slope_t *dev_slope, + struct stroker *stroker, + cairo_stroke_face_t *face) +{ + double face_dx, face_dy; + cairo_point_t offset_ccw, offset_cw; + double slope_dx, slope_dy; + + slope_dx = _cairo_fixed_to_double (dev_slope->dx); + slope_dy = _cairo_fixed_to_double (dev_slope->dy); + face->length = normalize_slope (&slope_dx, &slope_dy); + face->dev_slope.x = slope_dx; + face->dev_slope.y = slope_dy; + + /* + * rotate to get a line_width/2 vector along the face, note that + * the vector must be rotated the right direction in device space, + * but by 90° in user space. So, the rotation depends on + * whether the ctm reflects or not, and that can be determined + * by looking at the determinant of the matrix. + */ + if (! _cairo_matrix_is_identity (stroker->ctm_inverse)) { + /* Normalize the matrix! */ + cairo_matrix_transform_distance (stroker->ctm_inverse, + &slope_dx, &slope_dy); + normalize_slope (&slope_dx, &slope_dy); + + if (stroker->ctm_det_positive) { + face_dx = - slope_dy * (stroker->style.line_width / 2.0); + face_dy = slope_dx * (stroker->style.line_width / 2.0); + } else { + face_dx = slope_dy * (stroker->style.line_width / 2.0); + face_dy = - slope_dx * (stroker->style.line_width / 2.0); + } + + /* back to device space */ + cairo_matrix_transform_distance (stroker->ctm, &face_dx, &face_dy); + } else { + face_dx = - slope_dy * (stroker->style.line_width / 2.0); + face_dy = slope_dx * (stroker->style.line_width / 2.0); + } + + offset_ccw.x = _cairo_fixed_from_double (face_dx); + offset_ccw.y = _cairo_fixed_from_double (face_dy); + offset_cw.x = -offset_ccw.x; + offset_cw.y = -offset_ccw.y; + + face->ccw = *point; + translate_point (&face->ccw, &offset_ccw); + + face->point = *point; + + face->cw = *point; + translate_point (&face->cw, &offset_cw); + + face->usr_vector.x = slope_dx; + face->usr_vector.y = slope_dy; + + face->dev_vector = *dev_slope; +} + +static void +add_caps (struct stroker *stroker) +{ + /* check for a degenerative sub_path */ + if (stroker->has_sub_path && + ! stroker->has_first_face && + ! stroker->has_current_face && + stroker->style.line_cap == CAIRO_LINE_CAP_ROUND) + { + /* pick an arbitrary slope to use */ + cairo_slope_t slope = { CAIRO_FIXED_ONE, 0 }; + cairo_stroke_face_t face; + + /* arbitrarily choose first_point */ + compute_face (&stroker->first_point, &slope, stroker, &face); + + add_leading_cap (stroker, &face); + add_trailing_cap (stroker, &face); + + /* ensure the circle is complete */ + //_cairo_contour_add_point (&stroker->ccw.contour, + //_cairo_contour_first_point (&stroker->ccw.contour)); + } else { + if (stroker->has_current_face) + add_trailing_cap (stroker, &stroker->current_face); + + //_cairo_polygon_add_contour (stroker->polygon, &stroker->ccw.contour); + //_cairo_contour_reset (&stroker->ccw.contour); + + if (stroker->has_first_face) { + //_cairo_contour_add_point (&stroker->ccw.contour, + //&stroker->first_face.cw); + add_leading_cap (stroker, &stroker->first_face); + //_cairo_polygon_add_contour (stroker->polygon, + //&stroker->ccw.contour); + //_cairo_contour_reset (&stroker->ccw.contour); + } + } +} + +static cairo_status_t +move_to (void *closure, + const cairo_point_t *point) +{ + struct stroker *stroker = closure; + + /* Cap the start and end of the previous sub path as needed */ + add_caps (stroker); + + stroker->has_first_face = FALSE; + stroker->has_current_face = FALSE; + stroker->has_sub_path = FALSE; + + stroker->first_point = *point; + + stroker->current_face.point = *point; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +line_to (void *closure, + const cairo_point_t *point) +{ + struct stroker *stroker = closure; + cairo_stroke_face_t start; + cairo_point_t *p1 = &stroker->current_face.point; + cairo_slope_t dev_slope; + + stroker->has_sub_path = TRUE; + + if (p1->x == point->x && p1->y == point->y) + return CAIRO_STATUS_SUCCESS; + + _cairo_slope_init (&dev_slope, p1, point); + compute_face (p1, &dev_slope, stroker, &start); + + if (stroker->has_current_face) { + int clockwise = join_is_clockwise (&stroker->current_face, &start); + /* Join with final face from previous segment */ + outer_join (stroker, &stroker->current_face, &start, clockwise); + inner_join (stroker, &stroker->current_face, &start, clockwise); + } else { + if (! stroker->has_first_face) { + /* Save sub path's first face in case needed for closing join */ + stroker->first_face = start; + _cairo_tristrip_move_to (stroker->strip, &start.cw); + stroker->has_first_face = TRUE; + } + stroker->has_current_face = TRUE; + + _cairo_tristrip_add_point (stroker->strip, &start.cw); + _cairo_tristrip_add_point (stroker->strip, &start.ccw); + } + + stroker->current_face = start; + stroker->current_face.point = *point; + stroker->current_face.ccw.x += dev_slope.dx; + stroker->current_face.ccw.y += dev_slope.dy; + stroker->current_face.cw.x += dev_slope.dx; + stroker->current_face.cw.y += dev_slope.dy; + + _cairo_tristrip_add_point (stroker->strip, &stroker->current_face.cw); + _cairo_tristrip_add_point (stroker->strip, &stroker->current_face.ccw); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +spline_to (void *closure, + const cairo_point_t *point, + const cairo_slope_t *tangent) +{ + struct stroker *stroker = closure; + cairo_stroke_face_t face; + + if (tangent->dx == 0 && tangent->dy == 0) { + const cairo_point_t *inpt, *outpt; + cairo_point_t t; + int clockwise; + + face = stroker->current_face; + + face.usr_vector.x = -face.usr_vector.x; + face.usr_vector.y = -face.usr_vector.y; + face.dev_vector.dx = -face.dev_vector.dx; + face.dev_vector.dy = -face.dev_vector.dy; + + t = face.cw; + face.cw = face.ccw; + face.ccw = t; + + clockwise = join_is_clockwise (&stroker->current_face, &face); + if (clockwise) { + inpt = &stroker->current_face.cw; + outpt = &face.cw; + } else { + inpt = &stroker->current_face.ccw; + outpt = &face.ccw; + } + + add_fan (stroker, + &stroker->current_face.dev_vector, + &face.dev_vector, + &stroker->current_face.point, inpt, outpt, + clockwise); + } else { + compute_face (point, tangent, stroker, &face); + + if (face.dev_slope.x * stroker->current_face.dev_slope.x + + face.dev_slope.y * stroker->current_face.dev_slope.y < 0) + { + const cairo_point_t *inpt, *outpt; + int clockwise = join_is_clockwise (&stroker->current_face, &face); + + stroker->current_face.cw.x += face.point.x - stroker->current_face.point.x; + stroker->current_face.cw.y += face.point.y - stroker->current_face.point.y; + //contour_add_point (stroker, &stroker->cw, &stroker->current_face.cw); + + stroker->current_face.ccw.x += face.point.x - stroker->current_face.point.x; + stroker->current_face.ccw.y += face.point.y - stroker->current_face.point.y; + //contour_add_point (stroker, &stroker->ccw, &stroker->current_face.ccw); + + if (clockwise) { + inpt = &stroker->current_face.cw; + outpt = &face.cw; + } else { + inpt = &stroker->current_face.ccw; + outpt = &face.ccw; + } + add_fan (stroker, + &stroker->current_face.dev_vector, + &face.dev_vector, + &stroker->current_face.point, inpt, outpt, + clockwise); + } + + _cairo_tristrip_add_point (stroker->strip, &face.cw); + _cairo_tristrip_add_point (stroker->strip, &face.ccw); + } + + stroker->current_face = face; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +curve_to (void *closure, + const cairo_point_t *b, + const cairo_point_t *c, + const cairo_point_t *d) +{ + struct stroker *stroker = closure; + cairo_spline_t spline; + cairo_stroke_face_t face; + + if (stroker->has_limits) { + if (! _cairo_spline_intersects (&stroker->current_face.point, b, c, d, + &stroker->limit)) + return line_to (closure, d); + } + + if (! _cairo_spline_init (&spline, spline_to, stroker, + &stroker->current_face.point, b, c, d)) + return line_to (closure, d); + + compute_face (&stroker->current_face.point, &spline.initial_slope, + stroker, &face); + + if (stroker->has_current_face) { + int clockwise = join_is_clockwise (&stroker->current_face, &face); + /* Join with final face from previous segment */ + outer_join (stroker, &stroker->current_face, &face, clockwise); + inner_join (stroker, &stroker->current_face, &face, clockwise); + } else { + if (! stroker->has_first_face) { + /* Save sub path's first face in case needed for closing join */ + stroker->first_face = face; + _cairo_tristrip_move_to (stroker->strip, &face.cw); + stroker->has_first_face = TRUE; + } + stroker->has_current_face = TRUE; + + _cairo_tristrip_add_point (stroker->strip, &face.cw); + _cairo_tristrip_add_point (stroker->strip, &face.ccw); + } + stroker->current_face = face; + + return _cairo_spline_decompose (&spline, stroker->tolerance); +} + +static cairo_status_t +close_path (void *closure) +{ + struct stroker *stroker = closure; + cairo_status_t status; + + status = line_to (stroker, &stroker->first_point); + if (unlikely (status)) + return status; + + if (stroker->has_first_face && stroker->has_current_face) { + /* Join first and final faces of sub path */ + outer_close (stroker, &stroker->current_face, &stroker->first_face); + inner_close (stroker, &stroker->current_face, &stroker->first_face); + } else { + /* Cap the start and end of the sub path as needed */ + add_caps (stroker); + } + + stroker->has_sub_path = FALSE; + stroker->has_first_face = FALSE; + stroker->has_current_face = FALSE; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_int_status_t +_cairo_path_fixed_stroke_to_tristrip (const cairo_path_fixed_t *path, + const cairo_stroke_style_t*style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_tristrip_t *strip) +{ + struct stroker stroker; + cairo_int_status_t status; + int i; + + if (style->num_dashes) + return CAIRO_INT_STATUS_UNSUPPORTED; + + stroker.style = *style; + stroker.ctm = ctm; + stroker.ctm_inverse = ctm_inverse; + stroker.tolerance = tolerance; + + stroker.ctm_det_positive = + _cairo_matrix_compute_determinant (ctm) >= 0.0; + + status = _cairo_pen_init (&stroker.pen, + style->line_width / 2.0, + tolerance, ctm); + if (unlikely (status)) + return status; + + if (stroker.pen.num_vertices <= 1) + return CAIRO_INT_STATUS_NOTHING_TO_DO; + + stroker.has_current_face = FALSE; + stroker.has_first_face = FALSE; + stroker.has_sub_path = FALSE; + + stroker.has_limits = strip->num_limits > 0; + stroker.limit = strip->limits[0]; + for (i = 1; i < strip->num_limits; i++) + _cairo_box_add_box (&stroker.limit, &strip->limits[i]); + + stroker.strip = strip; + + status = _cairo_path_fixed_interpret (path, + move_to, + line_to, + curve_to, + close_path, + &stroker); + /* Cap the start and end of the final sub path as needed */ + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + add_caps (&stroker); + + _cairo_pen_fini (&stroker.pen); + + return status; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-path-stroke.c b/local/recipes/libs/cairo/source/src/cairo-path-stroke.c new file mode 100644 index 0000000000..60f647eb7b --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-path-stroke.c @@ -0,0 +1,1494 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +#define _DEFAULT_SOURCE /* for hypot() */ +#include "cairoint.h" + +#include "cairo-box-inline.h" +#include "cairo-boxes-private.h" +#include "cairo-error-private.h" +#include "cairo-path-fixed-private.h" +#include "cairo-slope-private.h" +#include "cairo-stroke-dash-private.h" +#include "cairo-traps-private.h" + +typedef struct cairo_stroker { + cairo_stroke_style_t style; + + const cairo_matrix_t *ctm; + const cairo_matrix_t *ctm_inverse; + double half_line_width; + double tolerance; + double spline_cusp_tolerance; + double ctm_determinant; + cairo_bool_t ctm_det_positive; + + void *closure; + cairo_status_t (*add_external_edge) (void *closure, + const cairo_point_t *p1, + const cairo_point_t *p2); + cairo_status_t (*add_triangle) (void *closure, + const cairo_point_t triangle[3]); + cairo_status_t (*add_triangle_fan) (void *closure, + const cairo_point_t *midpt, + const cairo_point_t *points, + int npoints); + cairo_status_t (*add_convex_quad) (void *closure, + const cairo_point_t quad[4]); + + cairo_pen_t pen; + + cairo_point_t current_point; + cairo_point_t first_point; + + cairo_bool_t has_initial_sub_path; + + cairo_bool_t has_current_face; + cairo_stroke_face_t current_face; + + cairo_bool_t has_first_face; + cairo_stroke_face_t first_face; + + cairo_stroker_dash_t dash; + + cairo_bool_t has_bounds; + cairo_box_t bounds; +} cairo_stroker_t; + +static void +_cairo_stroker_limit (cairo_stroker_t *stroker, + const cairo_path_fixed_t *path, + const cairo_box_t *boxes, + int num_boxes) +{ + double dx, dy; + cairo_fixed_t fdx, fdy; + + stroker->has_bounds = TRUE; + _cairo_boxes_get_extents (boxes, num_boxes, &stroker->bounds); + + /* Extend the bounds in each direction to account for the maximum area + * we might generate trapezoids, to capture line segments that are outside + * of the bounds but which might generate rendering that's within bounds. + */ + + _cairo_stroke_style_max_distance_from_path (&stroker->style, path, + stroker->ctm, &dx, &dy); + + fdx = _cairo_fixed_from_double (dx); + fdy = _cairo_fixed_from_double (dy); + + stroker->bounds.p1.x -= fdx; + stroker->bounds.p2.x += fdx; + + stroker->bounds.p1.y -= fdy; + stroker->bounds.p2.y += fdy; +} + +static cairo_status_t +_cairo_stroker_init (cairo_stroker_t *stroker, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + const cairo_box_t *limits, + int num_limits) +{ + cairo_status_t status; + + stroker->style = *stroke_style; + stroker->ctm = ctm; + stroker->ctm_inverse = ctm_inverse; + stroker->tolerance = tolerance; + stroker->half_line_width = stroke_style->line_width / 2.0; + + /* To test whether we need to join two segments of a spline using + * a round-join or a bevel-join, we can inspect the angle between the + * two segments. If the difference between the chord distance + * (half-line-width times the cosine of the bisection angle) and the + * half-line-width itself is greater than tolerance then we need to + * inject a point. + */ + stroker->spline_cusp_tolerance = 1 - tolerance / stroker->half_line_width; + stroker->spline_cusp_tolerance *= stroker->spline_cusp_tolerance; + stroker->spline_cusp_tolerance *= 2; + stroker->spline_cusp_tolerance -= 1; + + stroker->ctm_determinant = _cairo_matrix_compute_determinant (stroker->ctm); + stroker->ctm_det_positive = stroker->ctm_determinant >= 0.0; + + status = _cairo_pen_init (&stroker->pen, + stroker->half_line_width, tolerance, ctm); + if (unlikely (status)) + return status; + + stroker->has_current_face = FALSE; + stroker->has_first_face = FALSE; + stroker->has_initial_sub_path = FALSE; + + /* Coverity complains these may be unitialized. */ + memset (&stroker->current_face, 0, sizeof (cairo_stroke_face_t)); + memset (&stroker->first_face, 0, sizeof (cairo_stroke_face_t)); + + _cairo_stroker_dash_init (&stroker->dash, stroke_style); + + stroker->add_external_edge = NULL; + + stroker->has_bounds = FALSE; + if (num_limits) + _cairo_stroker_limit (stroker, path, limits, num_limits); + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_stroker_fini (cairo_stroker_t *stroker) +{ + _cairo_pen_fini (&stroker->pen); +} + +static void +_translate_point (cairo_point_t *point, const cairo_point_t *offset) +{ + point->x += offset->x; + point->y += offset->y; +} + +static int +_cairo_stroker_join_is_clockwise (const cairo_stroke_face_t *in, + const cairo_stroke_face_t *out) +{ + cairo_slope_t in_slope, out_slope; + + _cairo_slope_init (&in_slope, &in->point, &in->cw); + _cairo_slope_init (&out_slope, &out->point, &out->cw); + + return _cairo_slope_compare (&in_slope, &out_slope) < 0; +} + +/** + * _cairo_slope_compare_sgn: + * + * Return -1, 0 or 1 depending on the relative slopes of + * two lines. + **/ +static int +_cairo_slope_compare_sgn (double dx1, double dy1, double dx2, double dy2) +{ + double c = (dx1 * dy2 - dx2 * dy1); + + if (c > 0) return 1; + if (c < 0) return -1; + return 0; +} + +/* + * Construct a fan around the midpoint using the vertices from pen between + * inpt and outpt. + */ +static cairo_status_t +_tessellate_fan (cairo_stroker_t *stroker, + const cairo_slope_t *in_vector, + const cairo_slope_t *out_vector, + const cairo_point_t *midpt, + const cairo_point_t *inpt, + const cairo_point_t *outpt, + cairo_bool_t clockwise) +{ + cairo_point_t stack_points[64], *points = stack_points; + cairo_pen_t *pen = &stroker->pen; + int start, stop, num_points = 0; + cairo_status_t status; + + if (stroker->has_bounds && + ! _cairo_box_contains_point (&stroker->bounds, midpt)) + goto BEVEL; + + assert (stroker->pen.num_vertices); + + if (clockwise) { + _cairo_pen_find_active_ccw_vertices (pen, + in_vector, out_vector, + &start, &stop); + if (stroker->add_external_edge) { + cairo_point_t last; + last = *inpt; + while (start != stop) { + cairo_point_t p = *midpt; + _translate_point (&p, &pen->vertices[start].point); + + status = stroker->add_external_edge (stroker->closure, + &last, &p); + if (unlikely (status)) + return status; + last = p; + + if (start-- == 0) + start += pen->num_vertices; + } + status = stroker->add_external_edge (stroker->closure, + &last, outpt); + } else { + if (start == stop) + goto BEVEL; + + num_points = stop - start; + if (num_points < 0) + num_points += pen->num_vertices; + num_points += 2; + if (num_points > ARRAY_LENGTH(stack_points)) { + points = _cairo_malloc_ab (num_points, sizeof (cairo_point_t)); + if (unlikely (points == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + points[0] = *inpt; + num_points = 1; + while (start != stop) { + points[num_points] = *midpt; + _translate_point (&points[num_points], &pen->vertices[start].point); + num_points++; + + if (start-- == 0) + start += pen->num_vertices; + } + points[num_points++] = *outpt; + } + } else { + _cairo_pen_find_active_cw_vertices (pen, + in_vector, out_vector, + &start, &stop); + if (stroker->add_external_edge) { + cairo_point_t last; + last = *inpt; + while (start != stop) { + cairo_point_t p = *midpt; + _translate_point (&p, &pen->vertices[start].point); + + status = stroker->add_external_edge (stroker->closure, + &p, &last); + if (unlikely (status)) + return status; + last = p; + + if (++start == pen->num_vertices) + start = 0; + } + status = stroker->add_external_edge (stroker->closure, + outpt, &last); + } else { + if (start == stop) + goto BEVEL; + + num_points = stop - start; + if (num_points < 0) + num_points += pen->num_vertices; + num_points += 2; + if (num_points > ARRAY_LENGTH(stack_points)) { + points = _cairo_malloc_ab (num_points, sizeof (cairo_point_t)); + if (unlikely (points == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + points[0] = *inpt; + num_points = 1; + while (start != stop) { + points[num_points] = *midpt; + _translate_point (&points[num_points], &pen->vertices[start].point); + num_points++; + + if (++start == pen->num_vertices) + start = 0; + } + points[num_points++] = *outpt; + } + } + + if (num_points) { + status = stroker->add_triangle_fan (stroker->closure, + midpt, points, num_points); + } + + if (points != stack_points) + free (points); + + return status; + +BEVEL: + /* Ensure a leak free connection... */ + if (stroker->add_external_edge != NULL) { + if (clockwise) + return stroker->add_external_edge (stroker->closure, inpt, outpt); + else + return stroker->add_external_edge (stroker->closure, outpt, inpt); + } else { + stack_points[0] = *midpt; + stack_points[1] = *inpt; + stack_points[2] = *outpt; + return stroker->add_triangle (stroker->closure, stack_points); + } +} + +static cairo_status_t +_cairo_stroker_join (cairo_stroker_t *stroker, + const cairo_stroke_face_t *in, + const cairo_stroke_face_t *out) +{ + int clockwise = _cairo_stroker_join_is_clockwise (out, in); + const cairo_point_t *inpt, *outpt; + cairo_point_t points[4]; + cairo_status_t status; + + if (in->cw.x == out->cw.x && in->cw.y == out->cw.y && + in->ccw.x == out->ccw.x && in->ccw.y == out->ccw.y) + { + return CAIRO_STATUS_SUCCESS; + } + + if (clockwise) { + if (stroker->add_external_edge != NULL) { + status = stroker->add_external_edge (stroker->closure, + &out->cw, &in->point); + if (unlikely (status)) + return status; + + status = stroker->add_external_edge (stroker->closure, + &in->point, &in->cw); + if (unlikely (status)) + return status; + } + + inpt = &in->ccw; + outpt = &out->ccw; + } else { + if (stroker->add_external_edge != NULL) { + status = stroker->add_external_edge (stroker->closure, + &in->ccw, &in->point); + if (unlikely (status)) + return status; + + status = stroker->add_external_edge (stroker->closure, + &in->point, &out->ccw); + if (unlikely (status)) + return status; + } + + inpt = &in->cw; + outpt = &out->cw; + } + + switch (stroker->style.line_join) { + case CAIRO_LINE_JOIN_ROUND: + /* construct a fan around the common midpoint */ + return _tessellate_fan (stroker, + &in->dev_vector, + &out->dev_vector, + &in->point, inpt, outpt, + clockwise); + + case CAIRO_LINE_JOIN_MITER: + default: { + /* dot product of incoming slope vector with outgoing slope vector */ + double in_dot_out = -in->usr_vector.x * out->usr_vector.x + + -in->usr_vector.y * out->usr_vector.y; + double ml = stroker->style.miter_limit; + + /* Check the miter limit -- lines meeting at an acute angle + * can generate long miters, the limit converts them to bevel + * + * Consider the miter join formed when two line segments + * meet at an angle psi: + * + * /.\ + * /. .\ + * /./ \.\ + * /./psi\.\ + * + * We can zoom in on the right half of that to see: + * + * |\ + * | \ psi/2 + * | \ + * | \ + * | \ + * | \ + * miter \ + * length \ + * | \ + * | .\ + * | . \ + * |. line \ + * \ width \ + * \ \ + * + * + * The right triangle in that figure, (the line-width side is + * shown faintly with three '.' characters), gives us the + * following expression relating miter length, angle and line + * width: + * + * 1 /sin (psi/2) = miter_length / line_width + * + * The right-hand side of this relationship is the same ratio + * in which the miter limit (ml) is expressed. We want to know + * when the miter length is within the miter limit. That is + * when the following condition holds: + * + * 1/sin(psi/2) <= ml + * 1 <= ml sin(psi/2) + * 1 <= ml² sin²(psi/2) + * 2 <= ml² 2 sin²(psi/2) + * 2·sin²(psi/2) = 1-cos(psi) + * 2 <= ml² (1-cos(psi)) + * + * in · out = |in| |out| cos (psi) + * + * in and out are both unit vectors, so: + * + * in · out = cos (psi) + * + * 2 <= ml² (1 - in · out) + * + */ + if (2 <= ml * ml * (1 - in_dot_out)) { + double x1, y1, x2, y2; + double mx, my; + double dx1, dx2, dy1, dy2; + double ix, iy; + double fdx1, fdy1, fdx2, fdy2; + double mdx, mdy; + + /* + * we've got the points already transformed to device + * space, but need to do some computation with them and + * also need to transform the slope from user space to + * device space + */ + /* outer point of incoming line face */ + x1 = _cairo_fixed_to_double (inpt->x); + y1 = _cairo_fixed_to_double (inpt->y); + dx1 = in->usr_vector.x; + dy1 = in->usr_vector.y; + cairo_matrix_transform_distance (stroker->ctm, &dx1, &dy1); + + /* outer point of outgoing line face */ + x2 = _cairo_fixed_to_double (outpt->x); + y2 = _cairo_fixed_to_double (outpt->y); + dx2 = out->usr_vector.x; + dy2 = out->usr_vector.y; + cairo_matrix_transform_distance (stroker->ctm, &dx2, &dy2); + + /* + * Compute the location of the outer corner of the miter. + * That's pretty easy -- just the intersection of the two + * outer edges. We've got slopes and points on each + * of those edges. Compute my directly, then compute + * mx by using the edge with the larger dy; that avoids + * dividing by values close to zero. + */ + my = (((x2 - x1) * dy1 * dy2 - y2 * dx2 * dy1 + y1 * dx1 * dy2) / + (dx1 * dy2 - dx2 * dy1)); + if (fabs (dy1) >= fabs (dy2)) + mx = (my - y1) * dx1 / dy1 + x1; + else + mx = (my - y2) * dx2 / dy2 + x2; + + /* + * When the two outer edges are nearly parallel, slight + * perturbations in the position of the outer points of the lines + * caused by representing them in fixed point form can cause the + * intersection point of the miter to move a large amount. If + * that moves the miter intersection from between the two faces, + * then draw a bevel instead. + */ + + ix = _cairo_fixed_to_double (in->point.x); + iy = _cairo_fixed_to_double (in->point.y); + + /* slope of one face */ + fdx1 = x1 - ix; fdy1 = y1 - iy; + + /* slope of the other face */ + fdx2 = x2 - ix; fdy2 = y2 - iy; + + /* slope from the intersection to the miter point */ + mdx = mx - ix; mdy = my - iy; + + /* + * Make sure the miter point line lies between the two + * faces by comparing the slopes + */ + if (_cairo_slope_compare_sgn (fdx1, fdy1, mdx, mdy) != + _cairo_slope_compare_sgn (fdx2, fdy2, mdx, mdy)) + { + if (stroker->add_external_edge != NULL) { + points[0].x = _cairo_fixed_from_double (mx); + points[0].y = _cairo_fixed_from_double (my); + + if (clockwise) { + status = stroker->add_external_edge (stroker->closure, + inpt, &points[0]); + if (unlikely (status)) + return status; + + status = stroker->add_external_edge (stroker->closure, + &points[0], outpt); + if (unlikely (status)) + return status; + } else { + status = stroker->add_external_edge (stroker->closure, + outpt, &points[0]); + if (unlikely (status)) + return status; + + status = stroker->add_external_edge (stroker->closure, + &points[0], inpt); + if (unlikely (status)) + return status; + } + + return CAIRO_STATUS_SUCCESS; + } else { + points[0] = in->point; + points[1] = *inpt; + points[2].x = _cairo_fixed_from_double (mx); + points[2].y = _cairo_fixed_from_double (my); + points[3] = *outpt; + + return stroker->add_convex_quad (stroker->closure, points); + } + } + } + } + + /* fall through ... */ + + case CAIRO_LINE_JOIN_BEVEL: + if (stroker->add_external_edge != NULL) { + if (clockwise) { + return stroker->add_external_edge (stroker->closure, + inpt, outpt); + } else { + return stroker->add_external_edge (stroker->closure, + outpt, inpt); + } + } else { + points[0] = in->point; + points[1] = *inpt; + points[2] = *outpt; + + return stroker->add_triangle (stroker->closure, points); + } + } +} + +static cairo_status_t +_cairo_stroker_add_cap (cairo_stroker_t *stroker, + const cairo_stroke_face_t *f) +{ + switch (stroker->style.line_cap) { + case CAIRO_LINE_CAP_ROUND: { + cairo_slope_t slope; + + slope.dx = -f->dev_vector.dx; + slope.dy = -f->dev_vector.dy; + + return _tessellate_fan (stroker, + &f->dev_vector, + &slope, + &f->point, &f->cw, &f->ccw, + FALSE); + + } + + case CAIRO_LINE_CAP_SQUARE: { + double dx, dy; + cairo_slope_t fvector; + cairo_point_t quad[4]; + + dx = f->usr_vector.x; + dy = f->usr_vector.y; + dx *= stroker->half_line_width; + dy *= stroker->half_line_width; + cairo_matrix_transform_distance (stroker->ctm, &dx, &dy); + fvector.dx = _cairo_fixed_from_double (dx); + fvector.dy = _cairo_fixed_from_double (dy); + + quad[0] = f->ccw; + quad[1].x = f->ccw.x + fvector.dx; + quad[1].y = f->ccw.y + fvector.dy; + quad[2].x = f->cw.x + fvector.dx; + quad[2].y = f->cw.y + fvector.dy; + quad[3] = f->cw; + + if (stroker->add_external_edge != NULL) { + cairo_status_t status; + + status = stroker->add_external_edge (stroker->closure, + &quad[0], &quad[1]); + if (unlikely (status)) + return status; + + status = stroker->add_external_edge (stroker->closure, + &quad[1], &quad[2]); + if (unlikely (status)) + return status; + + status = stroker->add_external_edge (stroker->closure, + &quad[2], &quad[3]); + if (unlikely (status)) + return status; + + return CAIRO_STATUS_SUCCESS; + } else { + return stroker->add_convex_quad (stroker->closure, quad); + } + } + + case CAIRO_LINE_CAP_BUTT: + default: + if (stroker->add_external_edge != NULL) { + return stroker->add_external_edge (stroker->closure, + &f->ccw, &f->cw); + } else { + return CAIRO_STATUS_SUCCESS; + } + } +} + +static cairo_status_t +_cairo_stroker_add_leading_cap (cairo_stroker_t *stroker, + const cairo_stroke_face_t *face) +{ + cairo_stroke_face_t reversed; + cairo_point_t t; + + reversed = *face; + + /* The initial cap needs an outward facing vector. Reverse everything */ + reversed.usr_vector.x = -reversed.usr_vector.x; + reversed.usr_vector.y = -reversed.usr_vector.y; + reversed.dev_vector.dx = -reversed.dev_vector.dx; + reversed.dev_vector.dy = -reversed.dev_vector.dy; + t = reversed.cw; + reversed.cw = reversed.ccw; + reversed.ccw = t; + + return _cairo_stroker_add_cap (stroker, &reversed); +} + +static cairo_status_t +_cairo_stroker_add_trailing_cap (cairo_stroker_t *stroker, + const cairo_stroke_face_t *face) +{ + return _cairo_stroker_add_cap (stroker, face); +} + +static inline cairo_bool_t +_compute_normalized_device_slope (double *dx, double *dy, + const cairo_matrix_t *ctm_inverse, + double *mag_out) +{ + double dx0 = *dx, dy0 = *dy; + double mag; + + cairo_matrix_transform_distance (ctm_inverse, &dx0, &dy0); + + if (dx0 == 0.0 && dy0 == 0.0) { + if (mag_out) + *mag_out = 0.0; + return FALSE; + } + + if (dx0 == 0.0) { + *dx = 0.0; + if (dy0 > 0.0) { + mag = dy0; + *dy = 1.0; + } else { + mag = -dy0; + *dy = -1.0; + } + } else if (dy0 == 0.0) { + *dy = 0.0; + if (dx0 > 0.0) { + mag = dx0; + *dx = 1.0; + } else { + mag = -dx0; + *dx = -1.0; + } + } else { + mag = hypot (dx0, dy0); + *dx = dx0 / mag; + *dy = dy0 / mag; + } + + if (mag_out) + *mag_out = mag; + + return TRUE; +} + +static void +_compute_face (const cairo_point_t *point, + const cairo_slope_t *dev_slope, + double slope_dx, + double slope_dy, + cairo_stroker_t *stroker, + cairo_stroke_face_t *face) +{ + double face_dx, face_dy; + cairo_point_t offset_ccw, offset_cw; + + /* + * rotate to get a line_width/2 vector along the face, note that + * the vector must be rotated the right direction in device space, + * but by 90° in user space. So, the rotation depends on + * whether the ctm reflects or not, and that can be determined + * by looking at the determinant of the matrix. + */ + if (stroker->ctm_det_positive) + { + face_dx = - slope_dy * stroker->half_line_width; + face_dy = slope_dx * stroker->half_line_width; + } + else + { + face_dx = slope_dy * stroker->half_line_width; + face_dy = - slope_dx * stroker->half_line_width; + } + + /* back to device space */ + cairo_matrix_transform_distance (stroker->ctm, &face_dx, &face_dy); + + offset_ccw.x = _cairo_fixed_from_double (face_dx); + offset_ccw.y = _cairo_fixed_from_double (face_dy); + offset_cw.x = -offset_ccw.x; + offset_cw.y = -offset_ccw.y; + + face->ccw = *point; + _translate_point (&face->ccw, &offset_ccw); + + face->point = *point; + + face->cw = *point; + _translate_point (&face->cw, &offset_cw); + + face->usr_vector.x = slope_dx; + face->usr_vector.y = slope_dy; + + face->dev_vector = *dev_slope; +} + +static cairo_status_t +_cairo_stroker_add_caps (cairo_stroker_t *stroker) +{ + cairo_status_t status; + + /* check for a degenerative sub_path */ + if (stroker->has_initial_sub_path + && ! stroker->has_first_face + && ! stroker->has_current_face + && stroker->style.line_cap == CAIRO_LINE_CAP_ROUND) + { + /* pick an arbitrary slope to use */ + double dx = 1.0, dy = 0.0; + cairo_slope_t slope = { CAIRO_FIXED_ONE, 0 }; + cairo_stroke_face_t face; + + _compute_normalized_device_slope (&dx, &dy, + stroker->ctm_inverse, NULL); + + /* arbitrarily choose first_point + * first_point and current_point should be the same */ + _compute_face (&stroker->first_point, &slope, dx, dy, stroker, &face); + + status = _cairo_stroker_add_leading_cap (stroker, &face); + if (unlikely (status)) + return status; + + status = _cairo_stroker_add_trailing_cap (stroker, &face); + if (unlikely (status)) + return status; + } + + if (stroker->has_first_face) { + status = _cairo_stroker_add_leading_cap (stroker, + &stroker->first_face); + if (unlikely (status)) + return status; + } + + if (stroker->has_current_face) { + status = _cairo_stroker_add_trailing_cap (stroker, + &stroker->current_face); + if (unlikely (status)) + return status; + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_stroker_add_sub_edge (cairo_stroker_t *stroker, + const cairo_point_t *p1, + const cairo_point_t *p2, + cairo_slope_t *dev_slope, + double slope_dx, double slope_dy, + cairo_stroke_face_t *start, + cairo_stroke_face_t *end) +{ + _compute_face (p1, dev_slope, slope_dx, slope_dy, stroker, start); + *end = *start; + + if (p1->x == p2->x && p1->y == p2->y) + return CAIRO_STATUS_SUCCESS; + + end->point = *p2; + end->ccw.x += p2->x - p1->x; + end->ccw.y += p2->y - p1->y; + end->cw.x += p2->x - p1->x; + end->cw.y += p2->y - p1->y; + + if (stroker->add_external_edge != NULL) { + cairo_status_t status; + + status = stroker->add_external_edge (stroker->closure, + &end->cw, &start->cw); + if (unlikely (status)) + return status; + + status = stroker->add_external_edge (stroker->closure, + &start->ccw, &end->ccw); + if (unlikely (status)) + return status; + + return CAIRO_STATUS_SUCCESS; + } else { + cairo_point_t quad[4]; + + quad[0] = start->cw; + quad[1] = end->cw; + quad[2] = end->ccw; + quad[3] = start->ccw; + + return stroker->add_convex_quad (stroker->closure, quad); + } +} + +static cairo_status_t +_cairo_stroker_move_to (void *closure, + const cairo_point_t *point) +{ + cairo_stroker_t *stroker = closure; + cairo_status_t status; + + /* reset the dash pattern for new sub paths */ + _cairo_stroker_dash_start (&stroker->dash); + + /* Cap the start and end of the previous sub path as needed */ + status = _cairo_stroker_add_caps (stroker); + if (unlikely (status)) + return status; + + stroker->first_point = *point; + stroker->current_point = *point; + + stroker->has_first_face = FALSE; + stroker->has_current_face = FALSE; + stroker->has_initial_sub_path = FALSE; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_stroker_line_to (void *closure, + const cairo_point_t *point) +{ + cairo_stroker_t *stroker = closure; + cairo_stroke_face_t start, end; + cairo_point_t *p1 = &stroker->current_point; + cairo_slope_t dev_slope; + double slope_dx, slope_dy; + cairo_status_t status; + + stroker->has_initial_sub_path = TRUE; + + if (p1->x == point->x && p1->y == point->y) + return CAIRO_STATUS_SUCCESS; + + _cairo_slope_init (&dev_slope, p1, point); + slope_dx = _cairo_fixed_to_double (point->x - p1->x); + slope_dy = _cairo_fixed_to_double (point->y - p1->y); + _compute_normalized_device_slope (&slope_dx, &slope_dy, + stroker->ctm_inverse, NULL); + + status = _cairo_stroker_add_sub_edge (stroker, + p1, point, + &dev_slope, + slope_dx, slope_dy, + &start, &end); + if (unlikely (status)) + return status; + + if (stroker->has_current_face) { + /* Join with final face from previous segment */ + status = _cairo_stroker_join (stroker, + &stroker->current_face, + &start); + if (unlikely (status)) + return status; + } else if (! stroker->has_first_face) { + /* Save sub path's first face in case needed for closing join */ + stroker->first_face = start; + stroker->has_first_face = TRUE; + } + stroker->current_face = end; + stroker->has_current_face = TRUE; + + stroker->current_point = *point; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_stroker_add_point_line_to (void *closure, + const cairo_point_t *point, + const cairo_slope_t *tangent) +{ + return _cairo_stroker_line_to (closure, point); +}; + +static cairo_status_t +_cairo_stroker_spline_to (void *closure, + const cairo_point_t *point, + const cairo_slope_t *tangent) +{ + cairo_stroker_t *stroker = closure; + cairo_stroke_face_t new_face; + double slope_dx, slope_dy; + cairo_point_t points[3]; + cairo_point_t intersect_point; + + stroker->has_initial_sub_path = TRUE; + + if (stroker->current_point.x == point->x && + stroker->current_point.y == point->y) + return CAIRO_STATUS_SUCCESS; + + slope_dx = _cairo_fixed_to_double (tangent->dx); + slope_dy = _cairo_fixed_to_double (tangent->dy); + + if (! _compute_normalized_device_slope (&slope_dx, &slope_dy, + stroker->ctm_inverse, NULL)) + return CAIRO_STATUS_SUCCESS; + + _compute_face (point, tangent, + slope_dx, slope_dy, + stroker, &new_face); + + assert (stroker->has_current_face); + + if ((new_face.dev_slope.x * stroker->current_face.dev_slope.x + + new_face.dev_slope.y * stroker->current_face.dev_slope.y) < stroker->spline_cusp_tolerance) { + + const cairo_point_t *inpt, *outpt; + int clockwise = _cairo_stroker_join_is_clockwise (&new_face, + &stroker->current_face); + + if (clockwise) { + inpt = &stroker->current_face.cw; + outpt = &new_face.cw; + } else { + inpt = &stroker->current_face.ccw; + outpt = &new_face.ccw; + } + + _tessellate_fan (stroker, + &stroker->current_face.dev_vector, + &new_face.dev_vector, + &stroker->current_face.point, + inpt, outpt, + clockwise); + } + + if (_slow_segment_intersection (&stroker->current_face.cw, + &stroker->current_face.ccw, + &new_face.cw, + &new_face.ccw, + &intersect_point)) { + points[0] = stroker->current_face.ccw; + points[1] = new_face.ccw; + points[2] = intersect_point; + stroker->add_triangle (stroker->closure, points); + + points[0] = stroker->current_face.cw; + points[1] = new_face.cw; + stroker->add_triangle (stroker->closure, points); + } else { + points[0] = stroker->current_face.ccw; + points[1] = stroker->current_face.cw; + points[2] = new_face.cw; + stroker->add_triangle (stroker->closure, points); + + points[0] = stroker->current_face.ccw; + points[1] = new_face.cw; + points[2] = new_face.ccw; + stroker->add_triangle (stroker->closure, points); + } + + stroker->current_face = new_face; + stroker->has_current_face = TRUE; + stroker->current_point = *point; + + return CAIRO_STATUS_SUCCESS; +} + +/* + * Dashed lines. Cap each dash end, join around turns when on + */ +static cairo_status_t +_cairo_stroker_line_to_dashed (void *closure, + const cairo_point_t *p2) +{ + cairo_stroker_t *stroker = closure; + double mag, remain, step_length = 0; + double slope_dx, slope_dy; + double dx2, dy2; + cairo_stroke_face_t sub_start, sub_end; + cairo_point_t *p1 = &stroker->current_point; + cairo_slope_t dev_slope; + cairo_line_t segment; + cairo_bool_t fully_in_bounds; + cairo_status_t status; + + stroker->has_initial_sub_path = stroker->dash.dash_starts_on; + + if (p1->x == p2->x && p1->y == p2->y) + return CAIRO_STATUS_SUCCESS; + + fully_in_bounds = TRUE; + if (stroker->has_bounds && + (! _cairo_box_contains_point (&stroker->bounds, p1) || + ! _cairo_box_contains_point (&stroker->bounds, p2))) + { + fully_in_bounds = FALSE; + } + + _cairo_slope_init (&dev_slope, p1, p2); + + slope_dx = _cairo_fixed_to_double (p2->x - p1->x); + slope_dy = _cairo_fixed_to_double (p2->y - p1->y); + + if (! _compute_normalized_device_slope (&slope_dx, &slope_dy, + stroker->ctm_inverse, &mag)) + { + return CAIRO_STATUS_SUCCESS; + } + + remain = mag; + segment.p1 = *p1; + while (remain) { + step_length = MIN (stroker->dash.dash_remain, remain); + remain -= step_length; + dx2 = slope_dx * (mag - remain); + dy2 = slope_dy * (mag - remain); + cairo_matrix_transform_distance (stroker->ctm, &dx2, &dy2); + segment.p2.x = _cairo_fixed_from_double (dx2) + p1->x; + segment.p2.y = _cairo_fixed_from_double (dy2) + p1->y; + + if (stroker->dash.dash_on && + (fully_in_bounds || + (! stroker->has_first_face && stroker->dash.dash_starts_on) || + _cairo_box_intersects_line_segment (&stroker->bounds, &segment))) + { + status = _cairo_stroker_add_sub_edge (stroker, + &segment.p1, &segment.p2, + &dev_slope, + slope_dx, slope_dy, + &sub_start, &sub_end); + if (unlikely (status)) + return status; + + if (stroker->has_current_face) + { + /* Join with final face from previous segment */ + status = _cairo_stroker_join (stroker, + &stroker->current_face, + &sub_start); + if (unlikely (status)) + return status; + + stroker->has_current_face = FALSE; + } + else if (! stroker->has_first_face && + stroker->dash.dash_starts_on) + { + /* Save sub path's first face in case needed for closing join */ + stroker->first_face = sub_start; + stroker->has_first_face = TRUE; + } + else + { + /* Cap dash start if not connecting to a previous segment */ + status = _cairo_stroker_add_leading_cap (stroker, &sub_start); + if (unlikely (status)) + return status; + } + + if (remain) { + /* Cap dash end if not at end of segment */ + status = _cairo_stroker_add_trailing_cap (stroker, &sub_end); + if (unlikely (status)) + return status; + } else { + stroker->current_face = sub_end; + stroker->has_current_face = TRUE; + } + } else { + if (stroker->has_current_face) { + /* Cap final face from previous segment */ + status = _cairo_stroker_add_trailing_cap (stroker, + &stroker->current_face); + if (unlikely (status)) + return status; + + stroker->has_current_face = FALSE; + } + } + + _cairo_stroker_dash_step (&stroker->dash, step_length); + segment.p1 = segment.p2; + } + + if (stroker->dash.dash_on && ! stroker->has_current_face) { + /* This segment ends on a transition to dash_on, compute a new face + * and add cap for the beginning of the next dash_on step. + * + * Note: this will create a degenerate cap if this is not the last line + * in the path. Whether this behaviour is desirable or not is debatable. + * On one side these degenerate caps can not be reproduced with regular + * path stroking. + * On the other hand, Acroread 7 also produces the degenerate caps. + */ + _compute_face (p2, &dev_slope, + slope_dx, slope_dy, + stroker, + &stroker->current_face); + + status = _cairo_stroker_add_leading_cap (stroker, + &stroker->current_face); + if (unlikely (status)) + return status; + + stroker->has_current_face = TRUE; + } + + stroker->current_point = *p2; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_stroker_add_point_line_to_dashed (void *closure, + const cairo_point_t *point, + const cairo_slope_t *tangent) +{ + return _cairo_stroker_line_to_dashed (closure, point); +}; + +static cairo_status_t +_cairo_stroker_curve_to (void *closure, + const cairo_point_t *b, + const cairo_point_t *c, + const cairo_point_t *d) +{ + cairo_stroker_t *stroker = closure; + cairo_spline_t spline; + cairo_line_join_t line_join_save; + cairo_stroke_face_t face; + double slope_dx, slope_dy; + cairo_spline_add_point_func_t line_to; + cairo_spline_add_point_func_t spline_to; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + line_to = stroker->dash.dashed ? + _cairo_stroker_add_point_line_to_dashed : + _cairo_stroker_add_point_line_to; + + /* spline_to is only capable of rendering non-degenerate splines. */ + spline_to = stroker->dash.dashed ? + _cairo_stroker_add_point_line_to_dashed : + _cairo_stroker_spline_to; + + if (! _cairo_spline_init (&spline, + spline_to, + stroker, + &stroker->current_point, b, c, d)) + { + cairo_slope_t fallback_slope; + _cairo_slope_init (&fallback_slope, &stroker->current_point, d); + return line_to (closure, d, &fallback_slope); + } + + /* If the line width is so small that the pen is reduced to a + single point, then we have nothing to do. */ + if (stroker->pen.num_vertices <= 1) + return CAIRO_STATUS_SUCCESS; + + /* Compute the initial face */ + if (! stroker->dash.dashed || stroker->dash.dash_on) { + slope_dx = _cairo_fixed_to_double (spline.initial_slope.dx); + slope_dy = _cairo_fixed_to_double (spline.initial_slope.dy); + if (_compute_normalized_device_slope (&slope_dx, &slope_dy, + stroker->ctm_inverse, NULL)) + { + _compute_face (&stroker->current_point, + &spline.initial_slope, + slope_dx, slope_dy, + stroker, &face); + } + if (stroker->has_current_face) { + status = _cairo_stroker_join (stroker, + &stroker->current_face, &face); + if (unlikely (status)) + return status; + } else if (! stroker->has_first_face) { + stroker->first_face = face; + stroker->has_first_face = TRUE; + } + + stroker->current_face = face; + stroker->has_current_face = TRUE; + } + + /* Temporarily modify the stroker to use round joins to guarantee + * smooth stroked curves. */ + line_join_save = stroker->style.line_join; + stroker->style.line_join = CAIRO_LINE_JOIN_ROUND; + + status = _cairo_spline_decompose (&spline, stroker->tolerance); + if (unlikely (status)) + return status; + + /* And join the final face */ + if (! stroker->dash.dashed || stroker->dash.dash_on) { + slope_dx = _cairo_fixed_to_double (spline.final_slope.dx); + slope_dy = _cairo_fixed_to_double (spline.final_slope.dy); + if (_compute_normalized_device_slope (&slope_dx, &slope_dy, + stroker->ctm_inverse, NULL)) + { + _compute_face (&stroker->current_point, + &spline.final_slope, + slope_dx, slope_dy, + stroker, &face); + } + + status = _cairo_stroker_join (stroker, &stroker->current_face, &face); + if (unlikely (status)) + return status; + + stroker->current_face = face; + } + + stroker->style.line_join = line_join_save; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_stroker_close_path (void *closure) +{ + cairo_stroker_t *stroker = closure; + cairo_status_t status; + + if (stroker->dash.dashed) + status = _cairo_stroker_line_to_dashed (stroker, &stroker->first_point); + else + status = _cairo_stroker_line_to (stroker, &stroker->first_point); + if (unlikely (status)) + return status; + + if (stroker->has_first_face && stroker->has_current_face) { + /* Join first and final faces of sub path */ + status = _cairo_stroker_join (stroker, + &stroker->current_face, + &stroker->first_face); + if (unlikely (status)) + return status; + } else { + /* Cap the start and end of the sub path as needed */ + status = _cairo_stroker_add_caps (stroker); + if (unlikely (status)) + return status; + } + + stroker->has_initial_sub_path = FALSE; + stroker->has_first_face = FALSE; + stroker->has_current_face = FALSE; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_path_fixed_stroke_to_shaper (cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_status_t (*add_triangle) (void *closure, + const cairo_point_t triangle[3]), + cairo_status_t (*add_triangle_fan) (void *closure, + const cairo_point_t *midpt, + const cairo_point_t *points, + int npoints), + cairo_status_t (*add_convex_quad) (void *closure, + const cairo_point_t quad[4]), + void *closure) +{ + cairo_stroker_t stroker; + cairo_status_t status; + + status = _cairo_stroker_init (&stroker, path, stroke_style, + ctm, ctm_inverse, tolerance, + NULL, 0); + if (unlikely (status)) + return status; + + stroker.add_triangle = add_triangle; + stroker.add_triangle_fan = add_triangle_fan; + stroker.add_convex_quad = add_convex_quad; + stroker.closure = closure; + + status = _cairo_path_fixed_interpret (path, + _cairo_stroker_move_to, + stroker.dash.dashed ? + _cairo_stroker_line_to_dashed : + _cairo_stroker_line_to, + _cairo_stroker_curve_to, + _cairo_stroker_close_path, + &stroker); + + if (unlikely (status)) + goto BAIL; + + /* Cap the start and end of the final sub path as needed */ + status = _cairo_stroker_add_caps (&stroker); + +BAIL: + _cairo_stroker_fini (&stroker); + + return status; +} + +cairo_status_t +_cairo_path_fixed_stroke_dashed_to_polygon (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_polygon_t *polygon) +{ + cairo_stroker_t stroker; + cairo_status_t status; + + status = _cairo_stroker_init (&stroker, path, stroke_style, + ctm, ctm_inverse, tolerance, + polygon->limits, polygon->num_limits); + if (unlikely (status)) + return status; + + stroker.add_external_edge = _cairo_polygon_add_external_edge, + stroker.closure = polygon; + + status = _cairo_path_fixed_interpret (path, + _cairo_stroker_move_to, + stroker.dash.dashed ? + _cairo_stroker_line_to_dashed : + _cairo_stroker_line_to, + _cairo_stroker_curve_to, + _cairo_stroker_close_path, + &stroker); + + if (unlikely (status)) + goto BAIL; + + /* Cap the start and end of the final sub path as needed */ + status = _cairo_stroker_add_caps (&stroker); + +BAIL: + _cairo_stroker_fini (&stroker); + + return status; +} + +cairo_int_status_t +_cairo_path_fixed_stroke_polygon_to_traps (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_traps_t *traps) +{ + cairo_int_status_t status; + cairo_polygon_t polygon; + + _cairo_polygon_init (&polygon, traps->limits, traps->num_limits); + status = _cairo_path_fixed_stroke_to_polygon (path, + stroke_style, + ctm, + ctm_inverse, + tolerance, + &polygon); + if (unlikely (status)) + goto BAIL; + + status = _cairo_polygon_status (&polygon); + if (unlikely (status)) + goto BAIL; + + status = _cairo_bentley_ottmann_tessellate_polygon (traps, &polygon, + CAIRO_FILL_RULE_WINDING); + +BAIL: + _cairo_polygon_fini (&polygon); + + return status; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-path.c b/local/recipes/libs/cairo/source/src/cairo-path.c new file mode 100644 index 0000000000..6f7a9cef0e --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-path.c @@ -0,0 +1,478 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2006 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" + +#include "cairo-private.h" +#include "cairo-backend-private.h" +#include "cairo-error-private.h" +#include "cairo-path-private.h" +#include "cairo-path-fixed-private.h" + +/** + * SECTION:cairo-paths + * @Title: Paths + * @Short_Description: Creating paths and manipulating path data + * + * Paths are the most basic drawing tools and are primarily used to implicitly + * generate simple masks. + **/ + +static const cairo_path_t _cairo_path_nil = { CAIRO_STATUS_NO_MEMORY, NULL, 0 }; + +/* Closure for path interpretation. */ +typedef struct cairo_path_count { + int count; +} cpc_t; + +static cairo_status_t +_cpc_move_to (void *closure, + const cairo_point_t *point) +{ + cpc_t *cpc = closure; + + cpc->count += 2; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cpc_line_to (void *closure, + const cairo_point_t *point) +{ + cpc_t *cpc = closure; + + cpc->count += 2; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cpc_curve_to (void *closure, + const cairo_point_t *p1, + const cairo_point_t *p2, + const cairo_point_t *p3) +{ + cpc_t *cpc = closure; + + cpc->count += 4; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cpc_close_path (void *closure) +{ + cpc_t *cpc = closure; + + cpc->count += 1; + + return CAIRO_STATUS_SUCCESS; +} + +static int +_cairo_path_count (cairo_path_t *path, + cairo_path_fixed_t *path_fixed, + double tolerance, + cairo_bool_t flatten) +{ + cairo_status_t status; + cpc_t cpc; + + cpc.count = 0; + + if (flatten) { + status = _cairo_path_fixed_interpret_flat (path_fixed, + _cpc_move_to, + _cpc_line_to, + _cpc_close_path, + &cpc, + tolerance); + } else { + status = _cairo_path_fixed_interpret (path_fixed, + _cpc_move_to, + _cpc_line_to, + _cpc_curve_to, + _cpc_close_path, + &cpc); + } + + if (unlikely (status)) + return -1; + + return cpc.count; +} + +/* Closure for path interpretation. */ +typedef struct cairo_path_populate { + cairo_path_data_t *data; + cairo_t *cr; +} cpp_t; + +static cairo_status_t +_cpp_move_to (void *closure, + const cairo_point_t *point) +{ + cpp_t *cpp = closure; + cairo_path_data_t *data = cpp->data; + double x, y; + + x = _cairo_fixed_to_double (point->x); + y = _cairo_fixed_to_double (point->y); + + _cairo_backend_to_user (cpp->cr, &x, &y); + + data->header.type = CAIRO_PATH_MOVE_TO; + data->header.length = 2; + + /* We index from 1 to leave room for data->header */ + data[1].point.x = x; + data[1].point.y = y; + + cpp->data += data->header.length; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cpp_line_to (void *closure, + const cairo_point_t *point) +{ + cpp_t *cpp = closure; + cairo_path_data_t *data = cpp->data; + double x, y; + + x = _cairo_fixed_to_double (point->x); + y = _cairo_fixed_to_double (point->y); + + _cairo_backend_to_user (cpp->cr, &x, &y); + + data->header.type = CAIRO_PATH_LINE_TO; + data->header.length = 2; + + /* We index from 1 to leave room for data->header */ + data[1].point.x = x; + data[1].point.y = y; + + cpp->data += data->header.length; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cpp_curve_to (void *closure, + const cairo_point_t *p1, + const cairo_point_t *p2, + const cairo_point_t *p3) +{ + cpp_t *cpp = closure; + cairo_path_data_t *data = cpp->data; + double x1, y1; + double x2, y2; + double x3, y3; + + x1 = _cairo_fixed_to_double (p1->x); + y1 = _cairo_fixed_to_double (p1->y); + _cairo_backend_to_user (cpp->cr, &x1, &y1); + + x2 = _cairo_fixed_to_double (p2->x); + y2 = _cairo_fixed_to_double (p2->y); + _cairo_backend_to_user (cpp->cr, &x2, &y2); + + x3 = _cairo_fixed_to_double (p3->x); + y3 = _cairo_fixed_to_double (p3->y); + _cairo_backend_to_user (cpp->cr, &x3, &y3); + + data->header.type = CAIRO_PATH_CURVE_TO; + data->header.length = 4; + + /* We index from 1 to leave room for data->header */ + data[1].point.x = x1; + data[1].point.y = y1; + + data[2].point.x = x2; + data[2].point.y = y2; + + data[3].point.x = x3; + data[3].point.y = y3; + + cpp->data += data->header.length; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cpp_close_path (void *closure) +{ + cpp_t *cpp = closure; + cairo_path_data_t *data = cpp->data; + + data->header.type = CAIRO_PATH_CLOSE_PATH; + data->header.length = 1; + + cpp->data += data->header.length; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_path_populate (cairo_path_t *path, + cairo_path_fixed_t *path_fixed, + cairo_t *cr, + cairo_bool_t flatten) +{ + cairo_status_t status; + cpp_t cpp; + + cpp.data = path->data; + cpp.cr = cr; + + if (flatten) { + status = _cairo_path_fixed_interpret_flat (path_fixed, + _cpp_move_to, + _cpp_line_to, + _cpp_close_path, + &cpp, + cairo_get_tolerance (cr)); + } else { + status = _cairo_path_fixed_interpret (path_fixed, + _cpp_move_to, + _cpp_line_to, + _cpp_curve_to, + _cpp_close_path, + &cpp); + } + + if (unlikely (status)) + return status; + + /* Sanity check the count */ + assert (cpp.data - path->data == path->num_data); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_path_t * +_cairo_path_create_in_error (cairo_status_t status) +{ + cairo_path_t *path; + + /* special case NO_MEMORY so as to avoid allocations */ + if (status == CAIRO_STATUS_NO_MEMORY) + return (cairo_path_t*) &_cairo_path_nil; + + path = _cairo_calloc (sizeof (cairo_path_t)); + if (unlikely (path == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_path_t*) &_cairo_path_nil; + } + + path->num_data = 0; + path->data = NULL; + path->status = status; + + return path; +} + +static cairo_path_t * +_cairo_path_create_internal (cairo_path_fixed_t *path_fixed, + cairo_t *cr, + cairo_bool_t flatten) +{ + cairo_path_t *path; + + path = _cairo_calloc (sizeof (cairo_path_t)); + if (unlikely (path == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_path_t*) &_cairo_path_nil; + } + + path->num_data = _cairo_path_count (path, path_fixed, + cairo_get_tolerance (cr), + flatten); + if (path->num_data < 0) { + free (path); + return (cairo_path_t*) &_cairo_path_nil; + } + + if (path->num_data) { + path->data = _cairo_malloc_ab (path->num_data, + sizeof (cairo_path_data_t)); + if (unlikely (path->data == NULL)) { + free (path); + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_path_t*) &_cairo_path_nil; + } + + path->status = _cairo_path_populate (path, path_fixed, cr, flatten); + } else { + path->data = NULL; + path->status = CAIRO_STATUS_SUCCESS; + } + + return path; +} + +/** + * cairo_path_destroy: + * @path: a path previously returned by either cairo_copy_path() or + * cairo_copy_path_flat(). + * + * Immediately releases all memory associated with @path. After a call + * to cairo_path_destroy() the @path pointer is no longer valid and + * should not be used further. + * + * Note: cairo_path_destroy() should only be called with a + * pointer to a #cairo_path_t returned by a cairo function. Any path + * that is created manually (ie. outside of cairo) should be destroyed + * manually as well. + * + * Since: 1.0 + **/ +void +cairo_path_destroy (cairo_path_t *path) +{ + if (path == NULL || path == &_cairo_path_nil) + return; + + free (path->data); + + free (path); +} + +/** + * _cairo_path_create: + * @path: a fixed-point, device-space path to be converted and copied + * @cr: the current graphics context + * + * Creates a user-space #cairo_path_t copy of the given device-space + * @path. The @cr parameter provides the inverse CTM for the + * conversion. + * + * Return value: the new copy of the path. If there is insufficient + * memory a pointer to a special static nil #cairo_path_t will be + * returned instead with status==%CAIRO_STATUS_NO_MEMORY and + * data==%NULL. + **/ +cairo_path_t * +_cairo_path_create (cairo_path_fixed_t *path, + cairo_t *cr) +{ + return _cairo_path_create_internal (path, cr, FALSE); +} + +/** + * _cairo_path_create_flat: + * @path: a fixed-point, device-space path to be flattened, converted and copied + * @cr: the current graphics context + * + * Creates a flattened, user-space #cairo_path_t copy of the given + * device-space @path. The @cr parameter provide the inverse CTM + * for the conversion, as well as the tolerance value to control the + * accuracy of the flattening. + * + * Return value: the flattened copy of the path. If there is insufficient + * memory a pointer to a special static nil #cairo_path_t will be + * returned instead with status==%CAIRO_STATUS_NO_MEMORY and + * data==%NULL. + **/ +cairo_path_t * +_cairo_path_create_flat (cairo_path_fixed_t *path, + cairo_t *cr) +{ + return _cairo_path_create_internal (path, cr, TRUE); +} + +/** + * _cairo_path_append_to_context: + * @path: the path data to be appended + * @cr: a cairo context + * + * Append @path to the current path within @cr. + * + * Return value: %CAIRO_STATUS_INVALID_PATH_DATA if the data in @path + * is invalid, and %CAIRO_STATUS_SUCCESS otherwise. + **/ +cairo_status_t +_cairo_path_append_to_context (const cairo_path_t *path, + cairo_t *cr) +{ + const cairo_path_data_t *p, *end; + + end = &path->data[path->num_data]; + for (p = &path->data[0]; p < end; p += p->header.length) { + switch (p->header.type) { + case CAIRO_PATH_MOVE_TO: + if (unlikely (p->header.length < 2)) + return _cairo_error (CAIRO_STATUS_INVALID_PATH_DATA); + + cairo_move_to (cr, p[1].point.x, p[1].point.y); + break; + + case CAIRO_PATH_LINE_TO: + if (unlikely (p->header.length < 2)) + return _cairo_error (CAIRO_STATUS_INVALID_PATH_DATA); + + cairo_line_to (cr, p[1].point.x, p[1].point.y); + break; + + case CAIRO_PATH_CURVE_TO: + if (unlikely (p->header.length < 4)) + return _cairo_error (CAIRO_STATUS_INVALID_PATH_DATA); + + cairo_curve_to (cr, + p[1].point.x, p[1].point.y, + p[2].point.x, p[2].point.y, + p[3].point.x, p[3].point.y); + break; + + case CAIRO_PATH_CLOSE_PATH: + if (unlikely (p->header.length < 1)) + return _cairo_error (CAIRO_STATUS_INVALID_PATH_DATA); + + cairo_close_path (cr); + break; + + default: + return _cairo_error (CAIRO_STATUS_INVALID_PATH_DATA); + } + + if (unlikely (cr->status)) + return cr->status; + } + + return CAIRO_STATUS_SUCCESS; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-pattern-inline.h b/local/recipes/libs/cairo/source/src/cairo-pattern-inline.h new file mode 100644 index 0000000000..97e8ea034e --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-pattern-inline.h @@ -0,0 +1,65 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_PATTERN_INLINE_H +#define CAIRO_PATTERN_INLINE_H + +#include "cairo-pattern-private.h" + +#include "cairo-list-inline.h" + +CAIRO_BEGIN_DECLS + +static inline void +_cairo_pattern_add_observer (cairo_pattern_t *pattern, + cairo_pattern_observer_t *observer, + void (*func) (cairo_pattern_observer_t *, + cairo_pattern_t *, + unsigned int)) +{ + observer->notify = func; + cairo_list_add (&observer->link, &pattern->observers); +} + +static inline cairo_surface_t * +_cairo_pattern_get_source (const cairo_surface_pattern_t *pattern, + cairo_rectangle_int_t *extents) +{ + return _cairo_surface_get_source (pattern->surface, extents); +} + +CAIRO_END_DECLS + +#endif /* CAIRO_PATTERN_INLINE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-pattern-private.h b/local/recipes/libs/cairo/source/src/cairo-pattern-private.h new file mode 100644 index 0000000000..0e69d01776 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-pattern-private.h @@ -0,0 +1,387 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_PATTERN_PRIVATE_H +#define CAIRO_PATTERN_PRIVATE_H + +#include "cairo-error-private.h" +#include "cairo-types-private.h" +#include "cairo-list-private.h" +#include "cairo-surface-private.h" + +#include /* FILE* */ + +CAIRO_BEGIN_DECLS + +typedef struct _cairo_pattern_observer cairo_pattern_observer_t; + +enum { + CAIRO_PATTERN_NOTIFY_MATRIX = 0x1, + CAIRO_PATTERN_NOTIFY_FILTER = 0x2, + CAIRO_PATTERN_NOTIFY_EXTEND = 0x4, + CAIRO_PATTERN_NOTIFY_OPACITY = 0x9, + CAIRO_PATTERN_NOTIFY_DITHER = 0x12, +}; + +struct _cairo_pattern_observer { + void (*notify) (cairo_pattern_observer_t *, + cairo_pattern_t *pattern, + unsigned int flags); + cairo_list_t link; +}; + +struct _cairo_pattern { + cairo_reference_count_t ref_count; + cairo_status_t status; + cairo_user_data_array_t user_data; + cairo_list_t observers; + + cairo_pattern_type_t type; + + cairo_filter_t filter; + cairo_extend_t extend; + cairo_bool_t has_component_alpha; + cairo_bool_t is_foreground_marker; + cairo_dither_t dither; + + cairo_matrix_t matrix; + double opacity; +}; + +struct _cairo_solid_pattern { + cairo_pattern_t base; + cairo_color_t color; +}; + +typedef struct _cairo_surface_pattern { + cairo_pattern_t base; + + cairo_surface_t *surface; + + /* This field is only used by the wrapper surface for retreiving + * the region id from the target during create regions and passing + * the region id to the target surface during playback. + */ + unsigned int region_array_id; +} cairo_surface_pattern_t; + +typedef struct _cairo_gradient_stop { + double offset; + cairo_color_stop_t color; +} cairo_gradient_stop_t; + +typedef struct _cairo_gradient_pattern { + cairo_pattern_t base; + + unsigned int n_stops; + unsigned int stops_size; + cairo_gradient_stop_t *stops; + cairo_gradient_stop_t stops_embedded[2]; +} cairo_gradient_pattern_t; + +typedef struct _cairo_linear_pattern { + cairo_gradient_pattern_t base; + + cairo_point_double_t pd1; + cairo_point_double_t pd2; +} cairo_linear_pattern_t; + +typedef struct _cairo_radial_pattern { + cairo_gradient_pattern_t base; + + cairo_circle_double_t cd1; + cairo_circle_double_t cd2; +} cairo_radial_pattern_t; + +typedef union { + cairo_gradient_pattern_t base; + + cairo_linear_pattern_t linear; + cairo_radial_pattern_t radial; +} cairo_gradient_pattern_union_t; + +/* + * A mesh patch is a tensor-product patch (bicubic Bezier surface + * patch). It has 16 control points. Each set of 4 points along the + * sides of the 4x4 grid of control points is a Bezier curve that + * defines one side of the patch. A color is assigned to each + * corner. The inner 4 points provide additional control over the + * shape and the color mapping. + * + * Cairo uses the same convention as the PDF Reference for numbering + * the points and side of the patch. + * + * + * Side 1 + * + * p[0][3] p[1][3] p[2][3] p[3][3] + * Side 0 p[0][2] p[1][2] p[2][2] p[3][2] Side 2 + * p[0][1] p[1][1] p[2][1] p[3][1] + * p[0][0] p[1][0] p[2][0] p[3][0] + * + * Side 3 + * + * + * Point Color + * ------------------------- + * points[0][0] colors[0] + * points[0][3] colors[1] + * points[3][3] colors[2] + * points[3][0] colors[3] + */ + +typedef struct _cairo_mesh_patch { + cairo_point_double_t points[4][4]; + cairo_color_t colors[4]; +} cairo_mesh_patch_t; + +typedef struct _cairo_mesh_pattern { + cairo_pattern_t base; + + cairo_array_t patches; + cairo_mesh_patch_t *current_patch; + int current_side; + cairo_bool_t has_control_point[4]; + cairo_bool_t has_color[4]; +} cairo_mesh_pattern_t; + +typedef struct _cairo_raster_source_pattern { + cairo_pattern_t base; + + cairo_content_t content; + cairo_rectangle_int_t extents; + + cairo_raster_source_acquire_func_t acquire; + cairo_raster_source_release_func_t release; + cairo_raster_source_snapshot_func_t snapshot; + cairo_raster_source_copy_func_t copy; + cairo_raster_source_finish_func_t finish; + + /* an explicit pre-allocated member in preference to the general user-data */ + void *user_data; +} cairo_raster_source_pattern_t; + +typedef union { + cairo_pattern_t base; + + cairo_solid_pattern_t solid; + cairo_surface_pattern_t surface; + cairo_gradient_pattern_union_t gradient; + cairo_mesh_pattern_t mesh; + cairo_raster_source_pattern_t raster_source; +} cairo_pattern_union_t; + +/* cairo-pattern.c */ + +cairo_private cairo_pattern_t * +_cairo_pattern_create_in_error (cairo_status_t status); + +cairo_private cairo_status_t +_cairo_pattern_create_copy (cairo_pattern_t **pattern, + const cairo_pattern_t *other); + +cairo_private void +_cairo_pattern_init (cairo_pattern_t *pattern, + cairo_pattern_type_t type); + +cairo_private cairo_status_t +_cairo_pattern_init_copy (cairo_pattern_t *pattern, + const cairo_pattern_t *other); + +cairo_private void +_cairo_pattern_init_static_copy (cairo_pattern_t *pattern, + const cairo_pattern_t *other); + +cairo_private cairo_status_t +_cairo_pattern_init_snapshot (cairo_pattern_t *pattern, + const cairo_pattern_t *other); + +cairo_private void +_cairo_pattern_init_solid (cairo_solid_pattern_t *pattern, + const cairo_color_t *color); + +cairo_private void +_cairo_pattern_init_for_surface (cairo_surface_pattern_t *pattern, + cairo_surface_t *surface); + +cairo_private void +_cairo_pattern_fini (cairo_pattern_t *pattern); + +cairo_private cairo_pattern_t * +_cairo_pattern_create_solid (const cairo_color_t *color); + +cairo_private cairo_pattern_t * +_cairo_pattern_create_foreground_marker (void); + +cairo_private void +_cairo_pattern_transform (cairo_pattern_t *pattern, + const cairo_matrix_t *ctm_inverse); + +cairo_private void +_cairo_pattern_pretransform (cairo_pattern_t *pattern, + const cairo_matrix_t *ctm); + +cairo_private cairo_bool_t +_cairo_pattern_is_opaque_solid (const cairo_pattern_t *pattern); + +cairo_private cairo_bool_t +_cairo_pattern_is_opaque (const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents); + +cairo_private cairo_bool_t +_cairo_pattern_is_clear (const cairo_pattern_t *pattern); + +cairo_private cairo_bool_t +_cairo_gradient_pattern_is_solid (const cairo_gradient_pattern_t *gradient, + const cairo_rectangle_int_t *extents, + cairo_color_t *color); + +cairo_private cairo_bool_t +_cairo_pattern_is_constant_alpha (const cairo_pattern_t *abstract_pattern, + const cairo_rectangle_int_t *extents, + double *alpha); + +cairo_private void +_cairo_gradient_pattern_fit_to_range (const cairo_gradient_pattern_t *gradient, + double max_value, + cairo_matrix_t *out_matrix, + cairo_circle_double_t out_circle[2]); + +cairo_private cairo_bool_t +_cairo_radial_pattern_focus_is_inside (const cairo_radial_pattern_t *radial); + +cairo_private void +_cairo_gradient_pattern_box_to_parameter (const cairo_gradient_pattern_t *gradient, + double x0, double y0, + double x1, double y1, + double tolerance, + double out_range[2]); + +cairo_private void +_cairo_gradient_pattern_interpolate (const cairo_gradient_pattern_t *gradient, + double t, + cairo_circle_double_t *out_circle); + +cairo_private void +_cairo_pattern_alpha_range (const cairo_pattern_t *pattern, + double *out_min, + double *out_max); + +cairo_private cairo_bool_t +_cairo_mesh_pattern_coord_box (const cairo_mesh_pattern_t *mesh, + double *out_xmin, + double *out_ymin, + double *out_xmax, + double *out_ymax); + +cairo_private void +_cairo_pattern_sampled_area (const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents, + cairo_rectangle_int_t *sample); + +cairo_private void +_cairo_pattern_get_extents (const cairo_pattern_t *pattern, + cairo_rectangle_int_t *extents, + cairo_bool_t is_vector); + +cairo_private cairo_int_status_t +_cairo_pattern_get_ink_extents (const cairo_pattern_t *pattern, + cairo_rectangle_int_t *extents); + +cairo_private uintptr_t +_cairo_pattern_hash (const cairo_pattern_t *pattern); + +cairo_private uintptr_t +_cairo_linear_pattern_hash (uintptr_t hash, + const cairo_linear_pattern_t *linear); + +cairo_private uintptr_t +_cairo_radial_pattern_hash (uintptr_t hash, + const cairo_radial_pattern_t *radial); + +cairo_private cairo_bool_t +_cairo_linear_pattern_equal (const cairo_linear_pattern_t *a, + const cairo_linear_pattern_t *b); + +cairo_private unsigned long +_cairo_pattern_size (const cairo_pattern_t *pattern); + +cairo_private cairo_bool_t +_cairo_radial_pattern_equal (const cairo_radial_pattern_t *a, + const cairo_radial_pattern_t *b); + +cairo_private cairo_bool_t +_cairo_pattern_equal (const cairo_pattern_t *a, + const cairo_pattern_t *b); + +cairo_private cairo_filter_t +_cairo_pattern_analyze_filter (const cairo_pattern_t *pattern); + +/* cairo-mesh-pattern-rasterizer.c */ + +cairo_private void +_cairo_mesh_pattern_rasterize (const cairo_mesh_pattern_t *mesh, + void *data, + int width, + int height, + int stride, + double x_offset, + double y_offset); + +cairo_private cairo_surface_t * +_cairo_raster_source_pattern_acquire (const cairo_pattern_t *abstract_pattern, + cairo_surface_t *target, + const cairo_rectangle_int_t *extents); + +cairo_private void +_cairo_raster_source_pattern_release (const cairo_pattern_t *abstract_pattern, + cairo_surface_t *surface); + +cairo_private cairo_status_t +_cairo_raster_source_pattern_snapshot (cairo_pattern_t *abstract_pattern); + +cairo_private cairo_status_t +_cairo_raster_source_pattern_init_copy (cairo_pattern_t *pattern, + const cairo_pattern_t *other); + +cairo_private void +_cairo_raster_source_pattern_finish (cairo_pattern_t *abstract_pattern); + +cairo_private void +_cairo_debug_print_pattern (FILE *file, const cairo_pattern_t *pattern); + +CAIRO_END_DECLS + +#endif /* CAIRO_PATTERN_PRIVATE */ diff --git a/local/recipes/libs/cairo/source/src/cairo-pattern.c b/local/recipes/libs/cairo/source/src/cairo-pattern.c new file mode 100644 index 0000000000..4d713e6c65 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-pattern.c @@ -0,0 +1,4857 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 David Reveman + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of David + * Reveman not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. David Reveman makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * DAVID REVEMAN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL DAVID REVEMAN BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: David Reveman + * Keith Packard + * Carl Worth + */ + +#include "cairoint.h" + +#include "cairo-array-private.h" +#include "cairo-error-private.h" +#include "cairo-freed-pool-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-list-inline.h" +#include "cairo-path-private.h" +#include "cairo-pattern-private.h" +#include "cairo-recording-surface-inline.h" +#include "cairo-surface-snapshot-inline.h" + +#include + +#define PIXMAN_MAX_INT ((pixman_fixed_1 >> 1) - pixman_fixed_e) /* need to ensure deltas also fit */ + +/** + * SECTION:cairo-pattern + * @Title: cairo_pattern_t + * @Short_Description: Sources for drawing + * @See_Also: #cairo_t, #cairo_surface_t + * + * #cairo_pattern_t is the paint with which cairo draws. + * The primary use of patterns is as the source for all cairo drawing + * operations, although they can also be used as masks, that is, as the + * brush too. + * + * A cairo pattern is created by using one of the many constructors, + * of the form + * cairo_pattern_create_type() + * or implicitly through + * cairo_set_source_type() + * functions. + **/ + +/** + * CAIRO_HAS_MIME_SURFACE: + * + * Unused symbol, always defined. + * + * Since: 1.12 + **/ + +static freed_pool_t freed_pattern_pool[5]; + +static const cairo_solid_pattern_t _cairo_pattern_nil = { + { + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ + CAIRO_STATUS_NO_MEMORY, /* status */ + { 0, 0, 0, NULL }, /* user_data */ + { NULL, NULL }, /* observers */ + + CAIRO_PATTERN_TYPE_SOLID, /* type */ + CAIRO_FILTER_DEFAULT, /* filter */ + CAIRO_EXTEND_GRADIENT_DEFAULT, /* extend */ + FALSE, /* has component alpha */ + FALSE, /* is_foreground_marker */ + CAIRO_DITHER_DEFAULT, /* dither */ + { 1., 0., 0., 1., 0., 0., }, /* matrix */ + 1.0 /* opacity */ + } +}; + +static const cairo_solid_pattern_t _cairo_pattern_nil_null_pointer = { + { + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ + CAIRO_STATUS_NULL_POINTER, /* status */ + { 0, 0, 0, NULL }, /* user_data */ + { NULL, NULL }, /* observers */ + + CAIRO_PATTERN_TYPE_SOLID, /* type */ + CAIRO_FILTER_DEFAULT, /* filter */ + CAIRO_EXTEND_GRADIENT_DEFAULT, /* extend */ + FALSE, /* has component alpha */ + FALSE, /* is_foreground_marker */ + CAIRO_DITHER_DEFAULT, /* dither */ + { 1., 0., 0., 1., 0., 0., }, /* matrix */ + 1.0 /* opacity */ + } +}; + +const cairo_solid_pattern_t _cairo_pattern_black = { + { + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ + CAIRO_STATUS_SUCCESS, /* status */ + { 0, 0, 0, NULL }, /* user_data */ + { NULL, NULL }, /* observers */ + + CAIRO_PATTERN_TYPE_SOLID, /* type */ + CAIRO_FILTER_NEAREST, /* filter */ + CAIRO_EXTEND_REPEAT, /* extend */ + FALSE, /* has component alpha */ + FALSE, /* is_foreground_marker */ + CAIRO_DITHER_DEFAULT, /* dither */ + { 1., 0., 0., 1., 0., 0., }, /* matrix */ + 1.0 /* opacity */ + }, + { 0., 0., 0., 1., 0, 0, 0, 0xffff },/* color (double rgba, short rgba) */ +}; + +const cairo_solid_pattern_t _cairo_pattern_clear = { + { + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ + CAIRO_STATUS_SUCCESS, /* status */ + { 0, 0, 0, NULL }, /* user_data */ + { NULL, NULL }, /* observers */ + + CAIRO_PATTERN_TYPE_SOLID, /* type */ + CAIRO_FILTER_NEAREST, /* filter */ + CAIRO_EXTEND_REPEAT, /* extend */ + FALSE, /* has component alpha */ + FALSE, /* is_foreground_marker */ + CAIRO_DITHER_DEFAULT, /* dither */ + { 1., 0., 0., 1., 0., 0., }, /* matrix */ + 1.0 /* opacity */ + }, + { 0., 0., 0., 0., 0, 0, 0, 0 },/* color (double rgba, short rgba) */ +}; + +const cairo_solid_pattern_t _cairo_pattern_white = { + { + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ + CAIRO_STATUS_SUCCESS, /* status */ + { 0, 0, 0, NULL }, /* user_data */ + { NULL, NULL }, /* observers */ + + CAIRO_PATTERN_TYPE_SOLID, /* type */ + CAIRO_FILTER_NEAREST, /* filter */ + CAIRO_EXTEND_REPEAT, /* extend */ + FALSE, /* has component alpha */ + FALSE, /* is_foreground_marker */ + CAIRO_DITHER_DEFAULT, /* dither */ + { 1., 0., 0., 1., 0., 0., }, /* matrix */ + 1.0 /* opacity */ + }, + { 1., 1., 1., 1., 0xffff, 0xffff, 0xffff, 0xffff },/* color (double rgba, short rgba) */ +}; + +static void +_cairo_pattern_notify_observers (cairo_pattern_t *pattern, + unsigned int flags) +{ + cairo_pattern_observer_t *pos; + + cairo_list_foreach_entry (pos, cairo_pattern_observer_t, &pattern->observers, link) + pos->notify (pos, pattern, flags); +} + +/** + * _cairo_pattern_set_error: + * @pattern: a pattern + * @status: a status value indicating an error + * + * Atomically sets pattern->status to @status and calls _cairo_error; + * Does nothing if status is %CAIRO_STATUS_SUCCESS. + * + * All assignments of an error status to pattern->status should happen + * through _cairo_pattern_set_error(). Note that due to the nature of + * the atomic operation, it is not safe to call this function on the nil + * objects. + * + * The purpose of this function is to allow the user to set a + * breakpoint in _cairo_error() to generate a stack trace for when the + * user causes cairo to detect an error. + **/ +static cairo_status_t +_cairo_pattern_set_error (cairo_pattern_t *pattern, + cairo_status_t status) +{ + if (status == CAIRO_STATUS_SUCCESS) + return status; + + /* Don't overwrite an existing error. This preserves the first + * error, which is the most significant. */ + _cairo_status_set_error (&pattern->status, status); + + return _cairo_error (status); +} + +void +_cairo_pattern_init (cairo_pattern_t *pattern, cairo_pattern_type_t type) +{ +#if HAVE_VALGRIND + switch (type) { + case CAIRO_PATTERN_TYPE_SOLID: + VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_solid_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_SURFACE: + VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_surface_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_LINEAR: + VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_linear_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_RADIAL: + VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_radial_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_MESH: + VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_mesh_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + break; + } +#endif + + pattern->type = type; + pattern->status = CAIRO_STATUS_SUCCESS; + + /* Set the reference count to zero for on-stack patterns. + * Callers needs to explicitly increment the count for heap allocations. */ + CAIRO_REFERENCE_COUNT_INIT (&pattern->ref_count, 0); + + _cairo_user_data_array_init (&pattern->user_data); + + if (type == CAIRO_PATTERN_TYPE_SURFACE || + type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) + pattern->extend = CAIRO_EXTEND_SURFACE_DEFAULT; + else + pattern->extend = CAIRO_EXTEND_GRADIENT_DEFAULT; + + pattern->filter = CAIRO_FILTER_DEFAULT; + pattern->opacity = 1.0; + + pattern->has_component_alpha = FALSE; + pattern->is_foreground_marker = FALSE; + + pattern->dither = CAIRO_DITHER_DEFAULT; + + cairo_matrix_init_identity (&pattern->matrix); + + cairo_list_init (&pattern->observers); +} + +static cairo_status_t +_cairo_gradient_pattern_init_copy (cairo_gradient_pattern_t *pattern, + const cairo_gradient_pattern_t *other) +{ + if (CAIRO_INJECT_FAULT ()) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (other->base.type == CAIRO_PATTERN_TYPE_LINEAR) + { + cairo_linear_pattern_t *dst = (cairo_linear_pattern_t *) pattern; + cairo_linear_pattern_t *src = (cairo_linear_pattern_t *) other; + + *dst = *src; + } + else + { + cairo_radial_pattern_t *dst = (cairo_radial_pattern_t *) pattern; + cairo_radial_pattern_t *src = (cairo_radial_pattern_t *) other; + + *dst = *src; + } + + if (other->stops == other->stops_embedded) + pattern->stops = pattern->stops_embedded; + else if (other->stops) + { + pattern->stops = _cairo_malloc_ab (other->stops_size, + sizeof (cairo_gradient_stop_t)); + if (unlikely (pattern->stops == NULL)) { + pattern->stops_size = 0; + pattern->n_stops = 0; + return _cairo_pattern_set_error (&pattern->base, CAIRO_STATUS_NO_MEMORY); + } + + memcpy (pattern->stops, other->stops, + other->n_stops * sizeof (cairo_gradient_stop_t)); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_mesh_pattern_init_copy (cairo_mesh_pattern_t *pattern, + const cairo_mesh_pattern_t *other) +{ + *pattern = *other; + + _cairo_array_init (&pattern->patches, sizeof (cairo_mesh_patch_t)); + return _cairo_array_append_multiple (&pattern->patches, + _cairo_array_index_const (&other->patches, 0), + _cairo_array_num_elements (&other->patches)); +} + +cairo_status_t +_cairo_pattern_init_copy (cairo_pattern_t *pattern, + const cairo_pattern_t *other) +{ + cairo_status_t status; + + if (other->status) + return _cairo_pattern_set_error (pattern, other->status); + + switch (other->type) { + case CAIRO_PATTERN_TYPE_SOLID: { + cairo_solid_pattern_t *dst = (cairo_solid_pattern_t *) pattern; + cairo_solid_pattern_t *src = (cairo_solid_pattern_t *) other; + + VG (VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_solid_pattern_t))); + + *dst = *src; + } break; + case CAIRO_PATTERN_TYPE_SURFACE: { + cairo_surface_pattern_t *dst = (cairo_surface_pattern_t *) pattern; + cairo_surface_pattern_t *src = (cairo_surface_pattern_t *) other; + + VG (VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_surface_pattern_t))); + + *dst = *src; + cairo_surface_reference (dst->surface); + } break; + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: { + cairo_gradient_pattern_t *dst = (cairo_gradient_pattern_t *) pattern; + cairo_gradient_pattern_t *src = (cairo_gradient_pattern_t *) other; + + if (other->type == CAIRO_PATTERN_TYPE_LINEAR) { + VG (VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_linear_pattern_t))); + } else { + VG (VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_radial_pattern_t))); + } + + status = _cairo_gradient_pattern_init_copy (dst, src); + if (unlikely (status)) + return status; + + } break; + case CAIRO_PATTERN_TYPE_MESH: { + cairo_mesh_pattern_t *dst = (cairo_mesh_pattern_t *) pattern; + cairo_mesh_pattern_t *src = (cairo_mesh_pattern_t *) other; + + VG (VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_mesh_pattern_t))); + + status = _cairo_mesh_pattern_init_copy (dst, src); + if (unlikely (status)) + return status; + + } break; + + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: { + status = _cairo_raster_source_pattern_init_copy (pattern, other); + if (unlikely (status)) + return status; + } break; + } + + /* The reference count and user_data array are unique to the copy. */ + CAIRO_REFERENCE_COUNT_INIT (&pattern->ref_count, 0); + _cairo_user_data_array_init (&pattern->user_data); + cairo_list_init (&pattern->observers); + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_pattern_init_static_copy (cairo_pattern_t *pattern, + const cairo_pattern_t *other) +{ + int size; + + assert (other->status == CAIRO_STATUS_SUCCESS); + + switch (other->type) { + default: + ASSERT_NOT_REACHED; + case CAIRO_PATTERN_TYPE_SOLID: + size = sizeof (cairo_solid_pattern_t); + break; + case CAIRO_PATTERN_TYPE_SURFACE: + size = sizeof (cairo_surface_pattern_t); + break; + case CAIRO_PATTERN_TYPE_LINEAR: + size = sizeof (cairo_linear_pattern_t); + break; + case CAIRO_PATTERN_TYPE_RADIAL: + size = sizeof (cairo_radial_pattern_t); + break; + case CAIRO_PATTERN_TYPE_MESH: + size = sizeof (cairo_mesh_pattern_t); + break; + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + size = sizeof (cairo_raster_source_pattern_t); + break; + } + + memcpy (pattern, other, size); + + CAIRO_REFERENCE_COUNT_INIT (&pattern->ref_count, 0); + _cairo_user_data_array_init (&pattern->user_data); + cairo_list_init (&pattern->observers); +} + +cairo_status_t +_cairo_pattern_init_snapshot (cairo_pattern_t *pattern, + const cairo_pattern_t *other) +{ + cairo_status_t status; + + /* We don't bother doing any fancy copy-on-write implementation + * for the pattern's data. It's generally quite tiny. */ + status = _cairo_pattern_init_copy (pattern, other); + if (unlikely (status)) + return status; + + /* But we do let the surface snapshot stuff be as fancy as it + * would like to be. */ + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = + (cairo_surface_pattern_t *) pattern; + cairo_surface_t *surface = surface_pattern->surface; + + surface_pattern->surface = _cairo_surface_snapshot (surface); + + cairo_surface_destroy (surface); + + status = surface_pattern->surface->status; + } else if (pattern->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) + status = _cairo_raster_source_pattern_snapshot (pattern); + + return status; +} + +void +_cairo_pattern_fini (cairo_pattern_t *pattern) +{ + _cairo_user_data_array_fini (&pattern->user_data); + + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + break; + case CAIRO_PATTERN_TYPE_SURFACE: { + cairo_surface_pattern_t *surface_pattern = + (cairo_surface_pattern_t *) pattern; + + cairo_surface_destroy (surface_pattern->surface); + } break; + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: { + cairo_gradient_pattern_t *gradient = + (cairo_gradient_pattern_t *) pattern; + + if (gradient->stops && gradient->stops != gradient->stops_embedded) + free (gradient->stops); + } break; + case CAIRO_PATTERN_TYPE_MESH: { + cairo_mesh_pattern_t *mesh = + (cairo_mesh_pattern_t *) pattern; + + _cairo_array_fini (&mesh->patches); + } break; + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + _cairo_raster_source_pattern_finish (pattern); + break; + } + +#if HAVE_VALGRIND + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_solid_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_SURFACE: + VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_surface_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_LINEAR: + VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_linear_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_RADIAL: + VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_radial_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_MESH: + VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_mesh_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + break; + } +#endif +} + +cairo_status_t +_cairo_pattern_create_copy (cairo_pattern_t **pattern_out, + const cairo_pattern_t *other) +{ + cairo_pattern_t *pattern; + cairo_status_t status; + + if (other->status) + return other->status; + + switch (other->type) { + case CAIRO_PATTERN_TYPE_SOLID: + pattern = _cairo_malloc (sizeof (cairo_solid_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_SURFACE: + pattern = _cairo_malloc (sizeof (cairo_surface_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_LINEAR: + pattern = _cairo_malloc (sizeof (cairo_linear_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_RADIAL: + pattern = _cairo_malloc (sizeof (cairo_radial_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_MESH: + pattern = _cairo_malloc (sizeof (cairo_mesh_pattern_t)); + break; + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + pattern = _cairo_malloc (sizeof (cairo_raster_source_pattern_t)); + break; + default: + ASSERT_NOT_REACHED; + return _cairo_error (CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + } + if (unlikely (pattern == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_pattern_init_copy (pattern, other); + if (unlikely (status)) { + free (pattern); + return status; + } + + CAIRO_REFERENCE_COUNT_INIT (&pattern->ref_count, 1); + *pattern_out = pattern; + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_pattern_init_solid (cairo_solid_pattern_t *pattern, + const cairo_color_t *color) +{ + _cairo_pattern_init (&pattern->base, CAIRO_PATTERN_TYPE_SOLID); + pattern->color = *color; +} + +void +_cairo_pattern_init_for_surface (cairo_surface_pattern_t *pattern, + cairo_surface_t *surface) +{ + if (surface->status) { + /* Force to solid to simplify the pattern_fini process. */ + _cairo_pattern_init (&pattern->base, CAIRO_PATTERN_TYPE_SOLID); + _cairo_pattern_set_error (&pattern->base, surface->status); + return; + } + + _cairo_pattern_init (&pattern->base, CAIRO_PATTERN_TYPE_SURFACE); + + pattern->surface = cairo_surface_reference (surface); + pattern->region_array_id = 0; +} + +static void +_cairo_pattern_init_gradient (cairo_gradient_pattern_t *pattern, + cairo_pattern_type_t type) +{ + _cairo_pattern_init (&pattern->base, type); + + pattern->n_stops = 0; + pattern->stops_size = 0; + pattern->stops = NULL; +} + +static void +_cairo_pattern_init_linear (cairo_linear_pattern_t *pattern, + double x0, double y0, double x1, double y1) +{ + _cairo_pattern_init_gradient (&pattern->base, CAIRO_PATTERN_TYPE_LINEAR); + + pattern->pd1.x = x0; + pattern->pd1.y = y0; + pattern->pd2.x = x1; + pattern->pd2.y = y1; +} + +static void +_cairo_pattern_init_radial (cairo_radial_pattern_t *pattern, + double cx0, double cy0, double radius0, + double cx1, double cy1, double radius1) +{ + _cairo_pattern_init_gradient (&pattern->base, CAIRO_PATTERN_TYPE_RADIAL); + + pattern->cd1.center.x = cx0; + pattern->cd1.center.y = cy0; + pattern->cd1.radius = fabs (radius0); + pattern->cd2.center.x = cx1; + pattern->cd2.center.y = cy1; + pattern->cd2.radius = fabs (radius1); +} + +cairo_pattern_t * +_cairo_pattern_create_solid (const cairo_color_t *color) +{ + cairo_solid_pattern_t *pattern; + + pattern = + _freed_pool_get (&freed_pattern_pool[CAIRO_PATTERN_TYPE_SOLID]); + if (unlikely (pattern == NULL)) { + /* None cached, need to create a new pattern. */ + pattern = _cairo_calloc (sizeof (cairo_solid_pattern_t)); + if (unlikely (pattern == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_pattern_t *) &_cairo_pattern_nil; + } + } + + _cairo_pattern_init_solid (pattern, color); + CAIRO_REFERENCE_COUNT_INIT (&pattern->base.ref_count, 1); + + return &pattern->base; +} + +cairo_pattern_t * +_cairo_pattern_create_foreground_marker (void) +{ + cairo_pattern_t *pattern = _cairo_pattern_create_solid (CAIRO_COLOR_BLACK); + pattern->is_foreground_marker = TRUE; + return pattern; +} + +cairo_pattern_t * +_cairo_pattern_create_in_error (cairo_status_t status) +{ + cairo_pattern_t *pattern; + + if (status == CAIRO_STATUS_NO_MEMORY) + return (cairo_pattern_t *)&_cairo_pattern_nil.base; + + CAIRO_MUTEX_INITIALIZE (); + + pattern = _cairo_pattern_create_solid (CAIRO_COLOR_BLACK); + if (pattern->status == CAIRO_STATUS_SUCCESS) + status = _cairo_pattern_set_error (pattern, status); + + return pattern; +} + +/** + * cairo_pattern_create_rgb: + * @red: red component of the color + * @green: green component of the color + * @blue: blue component of the color + * + * Creates a new #cairo_pattern_t corresponding to an opaque color. The + * color components are floating point numbers in the range 0 to 1. + * If the values passed in are outside that range, they will be + * clamped. + * + * Return value: the newly created #cairo_pattern_t if successful, or + * an error pattern in case of no memory. The caller owns the + * returned object and should call cairo_pattern_destroy() when + * finished with it. + * + * This function will always return a valid pointer, but if an error + * occurred the pattern status will be set to an error. To inspect + * the status of a pattern use cairo_pattern_status(). + * + * Since: 1.0 + **/ +cairo_pattern_t * +cairo_pattern_create_rgb (double red, double green, double blue) +{ + return cairo_pattern_create_rgba (red, green, blue, 1.0); +} + +/** + * cairo_pattern_create_rgba: + * @red: red component of the color + * @green: green component of the color + * @blue: blue component of the color + * @alpha: alpha component of the color + * + * Creates a new #cairo_pattern_t corresponding to a translucent color. + * The color components are floating point numbers in the range 0 to + * 1. If the values passed in are outside that range, they will be + * clamped. + * + * The color is specified in the same way as in cairo_set_source_rgb(). + * + * Return value: the newly created #cairo_pattern_t if successful, or + * an error pattern in case of no memory. The caller owns the + * returned object and should call cairo_pattern_destroy() when + * finished with it. + * + * This function will always return a valid pointer, but if an error + * occurred the pattern status will be set to an error. To inspect + * the status of a pattern use cairo_pattern_status(). + * + * Since: 1.0 + **/ +cairo_pattern_t * +cairo_pattern_create_rgba (double red, double green, double blue, + double alpha) +{ + cairo_color_t color; + + red = _cairo_restrict_value (red, 0.0, 1.0); + green = _cairo_restrict_value (green, 0.0, 1.0); + blue = _cairo_restrict_value (blue, 0.0, 1.0); + alpha = _cairo_restrict_value (alpha, 0.0, 1.0); + + _cairo_color_init_rgba (&color, red, green, blue, alpha); + + CAIRO_MUTEX_INITIALIZE (); + + return _cairo_pattern_create_solid (&color); +} + +/** + * cairo_pattern_create_for_surface: + * @surface: the surface + * + * Create a new #cairo_pattern_t for the given surface. + * + * Return value: the newly created #cairo_pattern_t if successful, or + * an error pattern in case of no memory. The caller owns the + * returned object and should call cairo_pattern_destroy() when + * finished with it. + * + * This function will always return a valid pointer, but if an error + * occurred the pattern status will be set to an error. To inspect + * the status of a pattern use cairo_pattern_status(). + * + * Since: 1.0 + **/ +cairo_pattern_t * +cairo_pattern_create_for_surface (cairo_surface_t *surface) +{ + cairo_surface_pattern_t *pattern; + + if (surface == NULL) { + _cairo_error_throw (CAIRO_STATUS_NULL_POINTER); + return (cairo_pattern_t*) &_cairo_pattern_nil_null_pointer; + } + + if (surface->status) + return _cairo_pattern_create_in_error (surface->status); + + pattern = + _freed_pool_get (&freed_pattern_pool[CAIRO_PATTERN_TYPE_SURFACE]); + if (unlikely (pattern == NULL)) { + pattern = _cairo_calloc (sizeof (cairo_surface_pattern_t)); + if (unlikely (pattern == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_pattern_t *)&_cairo_pattern_nil.base; + } + } + + CAIRO_MUTEX_INITIALIZE (); + + _cairo_pattern_init_for_surface (pattern, surface); + CAIRO_REFERENCE_COUNT_INIT (&pattern->base.ref_count, 1); + + return &pattern->base; +} + +/** + * cairo_pattern_create_linear: + * @x0: x coordinate of the start point + * @y0: y coordinate of the start point + * @x1: x coordinate of the end point + * @y1: y coordinate of the end point + * + * Create a new linear gradient #cairo_pattern_t along the line defined + * by (x0, y0) and (x1, y1). Before using the gradient pattern, a + * number of color stops should be defined using + * cairo_pattern_add_color_stop_rgb() or + * cairo_pattern_add_color_stop_rgba(). + * + * Note: The coordinates here are in pattern space. For a new pattern, + * pattern space is identical to user space, but the relationship + * between the spaces can be changed with cairo_pattern_set_matrix(). + * + * Return value: the newly created #cairo_pattern_t if successful, or + * an error pattern in case of no memory. The caller owns the + * returned object and should call cairo_pattern_destroy() when + * finished with it. + * + * This function will always return a valid pointer, but if an error + * occurred the pattern status will be set to an error. To inspect + * the status of a pattern use cairo_pattern_status(). + * + * Since: 1.0 + **/ +cairo_pattern_t * +cairo_pattern_create_linear (double x0, double y0, double x1, double y1) +{ + cairo_linear_pattern_t *pattern; + + pattern = + _freed_pool_get (&freed_pattern_pool[CAIRO_PATTERN_TYPE_LINEAR]); + if (unlikely (pattern == NULL)) { + pattern = _cairo_calloc (sizeof (cairo_linear_pattern_t)); + if (unlikely (pattern == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_pattern_t *) &_cairo_pattern_nil.base; + } + } + + CAIRO_MUTEX_INITIALIZE (); + + _cairo_pattern_init_linear (pattern, x0, y0, x1, y1); + CAIRO_REFERENCE_COUNT_INIT (&pattern->base.base.ref_count, 1); + + return &pattern->base.base; +} + +/** + * cairo_pattern_create_radial: + * @cx0: x coordinate for the center of the start circle + * @cy0: y coordinate for the center of the start circle + * @radius0: radius of the start circle + * @cx1: x coordinate for the center of the end circle + * @cy1: y coordinate for the center of the end circle + * @radius1: radius of the end circle + * + * Creates a new radial gradient #cairo_pattern_t between the two + * circles defined by (cx0, cy0, radius0) and (cx1, cy1, radius1). Before using the + * gradient pattern, a number of color stops should be defined using + * cairo_pattern_add_color_stop_rgb() or + * cairo_pattern_add_color_stop_rgba(). + * + * Note: The coordinates here are in pattern space. For a new pattern, + * pattern space is identical to user space, but the relationship + * between the spaces can be changed with cairo_pattern_set_matrix(). + * + * Return value: the newly created #cairo_pattern_t if successful, or + * an error pattern in case of no memory. The caller owns the + * returned object and should call cairo_pattern_destroy() when + * finished with it. + * + * This function will always return a valid pointer, but if an error + * occurred the pattern status will be set to an error. To inspect + * the status of a pattern use cairo_pattern_status(). + * + * Since: 1.0 + **/ +cairo_pattern_t * +cairo_pattern_create_radial (double cx0, double cy0, double radius0, + double cx1, double cy1, double radius1) +{ + cairo_radial_pattern_t *pattern; + + pattern = + _freed_pool_get (&freed_pattern_pool[CAIRO_PATTERN_TYPE_RADIAL]); + if (unlikely (pattern == NULL)) { + pattern = _cairo_calloc (sizeof (cairo_radial_pattern_t)); + if (unlikely (pattern == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_pattern_t *) &_cairo_pattern_nil.base; + } + } + + CAIRO_MUTEX_INITIALIZE (); + + _cairo_pattern_init_radial (pattern, cx0, cy0, radius0, cx1, cy1, radius1); + CAIRO_REFERENCE_COUNT_INIT (&pattern->base.base.ref_count, 1); + + return &pattern->base.base; +} + +/* This order is specified in the diagram in the documentation for + * cairo_pattern_create_mesh() */ +static const int mesh_path_point_i[12] = { 0, 0, 0, 0, 1, 2, 3, 3, 3, 3, 2, 1 }; +static const int mesh_path_point_j[12] = { 0, 1, 2, 3, 3, 3, 3, 2, 1, 0, 0, 0 }; +static const int mesh_control_point_i[4] = { 1, 1, 2, 2 }; +static const int mesh_control_point_j[4] = { 1, 2, 2, 1 }; + +/** + * cairo_pattern_create_mesh: + * + * Create a new mesh pattern. + * + * Mesh patterns are tensor-product patch meshes (type 7 shadings in + * PDF). Mesh patterns may also be used to create other types of + * shadings that are special cases of tensor-product patch meshes such + * as Coons patch meshes (type 6 shading in PDF) and Gouraud-shaded + * triangle meshes (type 4 and 5 shadings in PDF). + * + * Mesh patterns consist of one or more tensor-product patches, which + * should be defined before using the mesh pattern. Using a mesh + * pattern with a partially defined patch as source or mask will put + * the context in an error status with a status of + * %CAIRO_STATUS_INVALID_MESH_CONSTRUCTION. + * + * A tensor-product patch is defined by 4 Bézier curves (side 0, 1, 2, + * 3) and by 4 additional control points (P0, P1, P2, P3) that provide + * further control over the patch and complete the definition of the + * tensor-product patch. The corner C0 is the first point of the + * patch. + * + * Degenerate sides are permitted so straight lines may be used. A + * zero length line on one side may be used to create 3 sided patches. + * + * + * C1 Side 1 C2 + * +---------------+ + * | | + * | P1 P2 | + * | | + * Side 0 | | Side 2 + * | | + * | | + * | P0 P3 | + * | | + * +---------------+ + * C0 Side 3 C3 + * + * + * Each patch is constructed by first calling + * cairo_mesh_pattern_begin_patch(), then cairo_mesh_pattern_move_to() + * to specify the first point in the patch (C0). Then the sides are + * specified with calls to cairo_mesh_pattern_curve_to() and + * cairo_mesh_pattern_line_to(). + * + * The four additional control points (P0, P1, P2, P3) in a patch can + * be specified with cairo_mesh_pattern_set_control_point(). + * + * At each corner of the patch (C0, C1, C2, C3) a color may be + * specified with cairo_mesh_pattern_set_corner_color_rgb() or + * cairo_mesh_pattern_set_corner_color_rgba(). Any corner whose color + * is not explicitly specified defaults to transparent black. + * + * A Coons patch is a special case of the tensor-product patch where + * the control points are implicitly defined by the sides of the + * patch. The default value for any control point not specified is the + * implicit value for a Coons patch, i.e. if no control points are + * specified the patch is a Coons patch. + * + * A triangle is a special case of the tensor-product patch where the + * control points are implicitly defined by the sides of the patch, + * all the sides are lines and one of them has length 0, i.e. if the + * patch is specified using just 3 lines, it is a triangle. If the + * corners connected by the 0-length side have the same color, the + * patch is a Gouraud-shaded triangle. + * + * Patches may be oriented differently to the above diagram. For + * example the first point could be at the top left. The diagram only + * shows the relationship between the sides, corners and control + * points. Regardless of where the first point is located, when + * specifying colors, corner 0 will always be the first point, corner + * 1 the point between side 0 and side 1 etc. + * + * Calling cairo_mesh_pattern_end_patch() completes the current + * patch. If less than 4 sides have been defined, the first missing + * side is defined as a line from the current point to the first point + * of the patch (C0) and the other sides are degenerate lines from C0 + * to C0. The corners between the added sides will all be coincident + * with C0 of the patch and their color will be set to be the same as + * the color of C0. + * + * Additional patches may be added with additional calls to + * cairo_mesh_pattern_begin_patch()/cairo_mesh_pattern_end_patch(). + * + * + * cairo_pattern_t *pattern = cairo_pattern_create_mesh (); + * + * /* Add a Coons patch */ + * cairo_mesh_pattern_begin_patch (pattern); + * cairo_mesh_pattern_move_to (pattern, 0, 0); + * cairo_mesh_pattern_curve_to (pattern, 30, -30, 60, 30, 100, 0); + * cairo_mesh_pattern_curve_to (pattern, 60, 30, 130, 60, 100, 100); + * cairo_mesh_pattern_curve_to (pattern, 60, 70, 30, 130, 0, 100); + * cairo_mesh_pattern_curve_to (pattern, 30, 70, -30, 30, 0, 0); + * cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 1, 0, 0); + * cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 0, 1, 0); + * cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, 0, 0, 1); + * cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 1, 0); + * cairo_mesh_pattern_end_patch (pattern); + * + * /* Add a Gouraud-shaded triangle */ + * cairo_mesh_pattern_begin_patch (pattern) + * cairo_mesh_pattern_move_to (pattern, 100, 100); + * cairo_mesh_pattern_line_to (pattern, 130, 130); + * cairo_mesh_pattern_line_to (pattern, 130, 70); + * cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 1, 0, 0); + * cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 0, 1, 0); + * cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, 0, 0, 1); + * cairo_mesh_pattern_end_patch (pattern) + * + * + * When two patches overlap, the last one that has been added is drawn + * over the first one. + * + * When a patch folds over itself, points are sorted depending on + * their parameter coordinates inside the patch. The v coordinate + * ranges from 0 to 1 when moving from side 3 to side 1; the u + * coordinate ranges from 0 to 1 when going from side 0 to side + * 2. Points with higher v coordinate hide points with lower v + * coordinate. When two points have the same v coordinate, the one + * with higher u coordinate is above. This means that points nearer to + * side 1 are above points nearer to side 3; when this is not + * sufficient to decide which point is above (for example when both + * points belong to side 1 or side 3) points nearer to side 2 are + * above points nearer to side 0. + * + * For a complete definition of tensor-product patches, see the PDF + * specification (ISO32000), which describes the parametrization in + * detail. + * + * Note: The coordinates are always in pattern space. For a new + * pattern, pattern space is identical to user space, but the + * relationship between the spaces can be changed with + * cairo_pattern_set_matrix(). + * + * Return value: the newly created #cairo_pattern_t if successful, or + * an error pattern in case of no memory. The caller owns the returned + * object and should call cairo_pattern_destroy() when finished with + * it. + * + * This function will always return a valid pointer, but if an error + * occurred the pattern status will be set to an error. To inspect the + * status of a pattern use cairo_pattern_status(). + * + * Since: 1.12 + **/ +cairo_pattern_t * +cairo_pattern_create_mesh (void) +{ + cairo_mesh_pattern_t *pattern; + + pattern = + _freed_pool_get (&freed_pattern_pool[CAIRO_PATTERN_TYPE_MESH]); + if (unlikely (pattern == NULL)) { + pattern = _cairo_calloc (sizeof (cairo_mesh_pattern_t)); + if (unlikely (pattern == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_pattern_t *) &_cairo_pattern_nil.base; + } + } + + CAIRO_MUTEX_INITIALIZE (); + + _cairo_pattern_init (&pattern->base, CAIRO_PATTERN_TYPE_MESH); + _cairo_array_init (&pattern->patches, sizeof (cairo_mesh_patch_t)); + pattern->current_patch = NULL; + CAIRO_REFERENCE_COUNT_INIT (&pattern->base.ref_count, 1); + + return &pattern->base; +} + +/** + * cairo_pattern_reference: + * @pattern: a #cairo_pattern_t + * + * Increases the reference count on @pattern by one. This prevents + * @pattern from being destroyed until a matching call to + * cairo_pattern_destroy() is made. + * + * Use cairo_pattern_get_reference_count() to get the number of + * references to a #cairo_pattern_t. + * + * Return value: the referenced #cairo_pattern_t. + * + * Since: 1.0 + **/ +cairo_pattern_t * +cairo_pattern_reference (cairo_pattern_t *pattern) +{ + if (pattern == NULL || + CAIRO_REFERENCE_COUNT_IS_INVALID (&pattern->ref_count)) + return pattern; + + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&pattern->ref_count)); + + _cairo_reference_count_inc (&pattern->ref_count); + + return pattern; +} + +/** + * cairo_pattern_get_type: + * @pattern: a #cairo_pattern_t + * + * Get the pattern's type. See #cairo_pattern_type_t for available + * types. + * + * Return value: The type of @pattern. + * + * Since: 1.2 + **/ +cairo_pattern_type_t +cairo_pattern_get_type (cairo_pattern_t *pattern) +{ + return pattern->type; +} + +/** + * cairo_pattern_status: + * @pattern: a #cairo_pattern_t + * + * Checks whether an error has previously occurred for this + * pattern. + * + * Return value: %CAIRO_STATUS_SUCCESS, %CAIRO_STATUS_NO_MEMORY, + * %CAIRO_STATUS_INVALID_MATRIX, %CAIRO_STATUS_PATTERN_TYPE_MISMATCH, + * or %CAIRO_STATUS_INVALID_MESH_CONSTRUCTION. + * + * Since: 1.0 + **/ +cairo_status_t +cairo_pattern_status (cairo_pattern_t *pattern) +{ + return pattern->status; +} + +/** + * cairo_pattern_destroy: + * @pattern: a #cairo_pattern_t + * + * Decreases the reference count on @pattern by one. If the result is + * zero, then @pattern and all associated resources are freed. See + * cairo_pattern_reference(). + * + * Since: 1.0 + **/ +void +cairo_pattern_destroy (cairo_pattern_t *pattern) +{ + cairo_pattern_type_t type; + + if (pattern == NULL || + CAIRO_REFERENCE_COUNT_IS_INVALID (&pattern->ref_count)) + return; + + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&pattern->ref_count)); + + if (! _cairo_reference_count_dec_and_test (&pattern->ref_count)) + return; + + type = pattern->type; + _cairo_pattern_fini (pattern); + + /* maintain a small cache of freed patterns */ + if (type < ARRAY_LENGTH (freed_pattern_pool)) + _freed_pool_put (&freed_pattern_pool[type], pattern); + else + free (pattern); +} + +/** + * cairo_pattern_get_reference_count: + * @pattern: a #cairo_pattern_t + * + * Returns the current reference count of @pattern. + * + * Return value: the current reference count of @pattern. If the + * object is a nil object, 0 will be returned. + * + * Since: 1.4 + **/ +unsigned int +cairo_pattern_get_reference_count (cairo_pattern_t *pattern) +{ + if (pattern == NULL || + CAIRO_REFERENCE_COUNT_IS_INVALID (&pattern->ref_count)) + return 0; + + return CAIRO_REFERENCE_COUNT_GET_VALUE (&pattern->ref_count); +} + +/** + * cairo_pattern_get_user_data: + * @pattern: a #cairo_pattern_t + * @key: the address of the #cairo_user_data_key_t the user data was + * attached to + * + * Return user data previously attached to @pattern using the + * specified key. If no user data has been attached with the given + * key this function returns %NULL. + * + * Return value: the user data previously attached or %NULL. + * + * Since: 1.4 + **/ +void * +cairo_pattern_get_user_data (cairo_pattern_t *pattern, + const cairo_user_data_key_t *key) +{ + return _cairo_user_data_array_get_data (&pattern->user_data, + key); +} + +/** + * cairo_pattern_set_user_data: + * @pattern: a #cairo_pattern_t + * @key: the address of a #cairo_user_data_key_t to attach the user data to + * @user_data: the user data to attach to the #cairo_pattern_t + * @destroy: a #cairo_destroy_func_t which will be called when the + * #cairo_t is destroyed or when new user data is attached using the + * same key. + * + * Attach user data to @pattern. To remove user data from a surface, + * call this function with the key that was used to set it and %NULL + * for @data. + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY if a + * slot could not be allocated for the user data. + * + * Since: 1.4 + **/ +cairo_status_t +cairo_pattern_set_user_data (cairo_pattern_t *pattern, + const cairo_user_data_key_t *key, + void *user_data, + cairo_destroy_func_t destroy) +{ + if (CAIRO_REFERENCE_COUNT_IS_INVALID (&pattern->ref_count)) + return pattern->status; + + return _cairo_user_data_array_set_data (&pattern->user_data, + key, user_data, destroy); +} + +/** + * cairo_mesh_pattern_begin_patch: + * @pattern: a #cairo_pattern_t + * + * Begin a patch in a mesh pattern. + * + * After calling this function, the patch shape should be defined with + * cairo_mesh_pattern_move_to(), cairo_mesh_pattern_line_to() and + * cairo_mesh_pattern_curve_to(). + * + * After defining the patch, cairo_mesh_pattern_end_patch() must be + * called before using @pattern as a source or mask. + * + * Note: If @pattern is not a mesh pattern then @pattern will be put + * into an error status with a status of + * %CAIRO_STATUS_PATTERN_TYPE_MISMATCH. If @pattern already has a + * current patch, it will be put into an error status with a status of + * %CAIRO_STATUS_INVALID_MESH_CONSTRUCTION. + * + * Since: 1.12 + **/ +void +cairo_mesh_pattern_begin_patch (cairo_pattern_t *pattern) +{ + cairo_mesh_pattern_t *mesh; + cairo_status_t status; + cairo_mesh_patch_t *current_patch; + int i; + + if (unlikely (pattern->status)) + return; + + if (unlikely (pattern->type != CAIRO_PATTERN_TYPE_MESH)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + return; + } + + mesh = (cairo_mesh_pattern_t *) pattern; + if (unlikely (mesh->current_patch)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_INVALID_MESH_CONSTRUCTION); + return; + } + + status = _cairo_array_allocate (&mesh->patches, 1, (void **) ¤t_patch); + if (unlikely (status)) { + _cairo_pattern_set_error (pattern, status); + return; + } + + mesh->current_patch = current_patch; + mesh->current_side = -2; /* no current point */ + + for (i = 0; i < 4; i++) + mesh->has_control_point[i] = FALSE; + + for (i = 0; i < 4; i++) + mesh->has_color[i] = FALSE; +} + +static void +_calc_control_point (cairo_mesh_patch_t *patch, int control_point) +{ + /* The Coons patch is a special case of the Tensor Product patch + * where the four control points are: + * + * P11 = S(1/3, 1/3) + * P12 = S(1/3, 2/3) + * P21 = S(2/3, 1/3) + * P22 = S(2/3, 2/3) + * + * where S is the gradient surface. + * + * When one or more control points has not been specified + * calculated the Coons patch control points are substituted. If + * no control points are specified the gradient will be a Coons + * patch. + * + * The equations below are defined in the ISO32000 standard. + */ + cairo_point_double_t *p[3][3]; + int cp_i, cp_j, i, j; + + cp_i = mesh_control_point_i[control_point]; + cp_j = mesh_control_point_j[control_point]; + + for (i = 0; i < 3; i++) + for (j = 0; j < 3; j++) + p[i][j] = &patch->points[cp_i ^ i][cp_j ^ j]; + + p[0][0]->x = (- 4 * p[1][1]->x + + 6 * (p[1][0]->x + p[0][1]->x) + - 2 * (p[1][2]->x + p[2][1]->x) + + 3 * (p[2][0]->x + p[0][2]->x) + - 1 * p[2][2]->x) * (1. / 9); + + p[0][0]->y = (- 4 * p[1][1]->y + + 6 * (p[1][0]->y + p[0][1]->y) + - 2 * (p[1][2]->y + p[2][1]->y) + + 3 * (p[2][0]->y + p[0][2]->y) + - 1 * p[2][2]->y) * (1. / 9); +} + +/** + * cairo_mesh_pattern_end_patch: + * @pattern: a #cairo_pattern_t + * + * Indicates the end of the current patch in a mesh pattern. + * + * If the current patch has less than 4 sides, it is closed with a + * straight line from the current point to the first point of the + * patch as if cairo_mesh_pattern_line_to() was used. + * + * Note: If @pattern is not a mesh pattern then @pattern will be put + * into an error status with a status of + * %CAIRO_STATUS_PATTERN_TYPE_MISMATCH. If @pattern has no current + * patch or the current patch has no current point, @pattern will be + * put into an error status with a status of + * %CAIRO_STATUS_INVALID_MESH_CONSTRUCTION. + * + * Since: 1.12 + **/ +void +cairo_mesh_pattern_end_patch (cairo_pattern_t *pattern) +{ + cairo_mesh_pattern_t *mesh; + cairo_mesh_patch_t *current_patch; + int i; + + if (unlikely (pattern->status)) + return; + + if (unlikely (pattern->type != CAIRO_PATTERN_TYPE_MESH)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + return; + } + + mesh = (cairo_mesh_pattern_t *) pattern; + current_patch = mesh->current_patch; + if (unlikely (!current_patch)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_INVALID_MESH_CONSTRUCTION); + return; + } + + if (unlikely (mesh->current_side == -2)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_INVALID_MESH_CONSTRUCTION); + return; + } + + while (mesh->current_side < 3) { + int corner_num; + + cairo_mesh_pattern_line_to (pattern, + current_patch->points[0][0].x, + current_patch->points[0][0].y); + + corner_num = mesh->current_side + 1; + if (corner_num < 4 && ! mesh->has_color[corner_num]) { + current_patch->colors[corner_num] = current_patch->colors[0]; + mesh->has_color[corner_num] = TRUE; + } + } + + for (i = 0; i < 4; i++) { + if (! mesh->has_control_point[i]) + _calc_control_point (current_patch, i); + } + + for (i = 0; i < 4; i++) { + if (! mesh->has_color[i]) + current_patch->colors[i] = *CAIRO_COLOR_TRANSPARENT; + } + + mesh->current_patch = NULL; +} + +/** + * cairo_mesh_pattern_curve_to: + * @pattern: a #cairo_pattern_t + * @x1: the X coordinate of the first control point + * @y1: the Y coordinate of the first control point + * @x2: the X coordinate of the second control point + * @y2: the Y coordinate of the second control point + * @x3: the X coordinate of the end of the curve + * @y3: the Y coordinate of the end of the curve + * + * Adds a cubic Bézier spline to the current patch from the current + * point to position (@x3, @y3) in pattern-space coordinates, using + * (@x1, @y1) and (@x2, @y2) as the control points. + * + * If the current patch has no current point before the call to + * cairo_mesh_pattern_curve_to(), this function will behave as if + * preceded by a call to cairo_mesh_pattern_move_to(@pattern, @x1, + * @y1). + * + * After this call the current point will be (@x3, @y3). + * + * Note: If @pattern is not a mesh pattern then @pattern will be put + * into an error status with a status of + * %CAIRO_STATUS_PATTERN_TYPE_MISMATCH. If @pattern has no current + * patch or the current patch already has 4 sides, @pattern will be + * put into an error status with a status of + * %CAIRO_STATUS_INVALID_MESH_CONSTRUCTION. + * + * Since: 1.12 + **/ +void +cairo_mesh_pattern_curve_to (cairo_pattern_t *pattern, + double x1, double y1, + double x2, double y2, + double x3, double y3) +{ + cairo_mesh_pattern_t *mesh; + int current_point, i, j; + + if (unlikely (pattern->status)) + return; + + if (unlikely (pattern->type != CAIRO_PATTERN_TYPE_MESH)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + return; + } + + mesh = (cairo_mesh_pattern_t *) pattern; + if (unlikely (!mesh->current_patch)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_INVALID_MESH_CONSTRUCTION); + return; + } + + if (unlikely (mesh->current_side == 3)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_INVALID_MESH_CONSTRUCTION); + return; + } + + if (mesh->current_side == -2) + cairo_mesh_pattern_move_to (pattern, x1, y1); + + assert (mesh->current_side >= -1); + assert (pattern->status == CAIRO_STATUS_SUCCESS); + + mesh->current_side++; + + current_point = 3 * mesh->current_side; + + current_point++; + i = mesh_path_point_i[current_point]; + j = mesh_path_point_j[current_point]; + mesh->current_patch->points[i][j].x = x1; + mesh->current_patch->points[i][j].y = y1; + + current_point++; + i = mesh_path_point_i[current_point]; + j = mesh_path_point_j[current_point]; + mesh->current_patch->points[i][j].x = x2; + mesh->current_patch->points[i][j].y = y2; + + current_point++; + if (current_point < 12) { + i = mesh_path_point_i[current_point]; + j = mesh_path_point_j[current_point]; + mesh->current_patch->points[i][j].x = x3; + mesh->current_patch->points[i][j].y = y3; + } +} + +/** + * cairo_mesh_pattern_line_to: + * @pattern: a #cairo_pattern_t + * @x: the X coordinate of the end of the new line + * @y: the Y coordinate of the end of the new line + * + * Adds a line to the current patch from the current point to position + * (@x, @y) in pattern-space coordinates. + * + * If there is no current point before the call to + * cairo_mesh_pattern_line_to() this function will behave as + * cairo_mesh_pattern_move_to(@pattern, @x, @y). + * + * After this call the current point will be (@x, @y). + * + * Note: If @pattern is not a mesh pattern then @pattern will be put + * into an error status with a status of + * %CAIRO_STATUS_PATTERN_TYPE_MISMATCH. If @pattern has no current + * patch or the current patch already has 4 sides, @pattern will be + * put into an error status with a status of + * %CAIRO_STATUS_INVALID_MESH_CONSTRUCTION. + * + * Since: 1.12 + **/ +void +cairo_mesh_pattern_line_to (cairo_pattern_t *pattern, + double x, double y) +{ + cairo_mesh_pattern_t *mesh; + cairo_point_double_t last_point; + int last_point_idx, i, j; + + if (unlikely (pattern->status)) + return; + + if (unlikely (pattern->type != CAIRO_PATTERN_TYPE_MESH)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + return; + } + + mesh = (cairo_mesh_pattern_t *) pattern; + if (unlikely (!mesh->current_patch)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_INVALID_MESH_CONSTRUCTION); + return; + } + + if (unlikely (mesh->current_side == 3)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_INVALID_MESH_CONSTRUCTION); + return; + } + + if (mesh->current_side == -2) { + cairo_mesh_pattern_move_to (pattern, x, y); + return; + } + + last_point_idx = 3 * (mesh->current_side + 1); + i = mesh_path_point_i[last_point_idx]; + j = mesh_path_point_j[last_point_idx]; + + last_point = mesh->current_patch->points[i][j]; + + cairo_mesh_pattern_curve_to (pattern, + (2 * last_point.x + x) * (1. / 3), + (2 * last_point.y + y) * (1. / 3), + (last_point.x + 2 * x) * (1. / 3), + (last_point.y + 2 * y) * (1. / 3), + x, y); +} + +/** + * cairo_mesh_pattern_move_to: + * @pattern: a #cairo_pattern_t + * @x: the X coordinate of the new position + * @y: the Y coordinate of the new position + * + * Define the first point of the current patch in a mesh pattern. + * + * After this call the current point will be (@x, @y). + * + * Note: If @pattern is not a mesh pattern then @pattern will be put + * into an error status with a status of + * %CAIRO_STATUS_PATTERN_TYPE_MISMATCH. If @pattern has no current + * patch or the current patch already has at least one side, @pattern + * will be put into an error status with a status of + * %CAIRO_STATUS_INVALID_MESH_CONSTRUCTION. + * + * Since: 1.12 + **/ +void +cairo_mesh_pattern_move_to (cairo_pattern_t *pattern, + double x, double y) +{ + cairo_mesh_pattern_t *mesh; + + if (unlikely (pattern->status)) + return; + + if (unlikely (pattern->type != CAIRO_PATTERN_TYPE_MESH)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + return; + } + + mesh = (cairo_mesh_pattern_t *) pattern; + if (unlikely (!mesh->current_patch)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_INVALID_MESH_CONSTRUCTION); + return; + } + + if (unlikely (mesh->current_side >= 0)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_INVALID_MESH_CONSTRUCTION); + return; + } + + mesh->current_side = -1; + mesh->current_patch->points[0][0].x = x; + mesh->current_patch->points[0][0].y = y; +} + +/** + * cairo_mesh_pattern_set_control_point: + * @pattern: a #cairo_pattern_t + * @point_num: the control point to set the position for + * @x: the X coordinate of the control point + * @y: the Y coordinate of the control point + * + * Set an internal control point of the current patch. + * + * Valid values for @point_num are from 0 to 3 and identify the + * control points as explained in cairo_pattern_create_mesh(). + * + * Note: If @pattern is not a mesh pattern then @pattern will be put + * into an error status with a status of + * %CAIRO_STATUS_PATTERN_TYPE_MISMATCH. If @point_num is not valid, + * @pattern will be put into an error status with a status of + * %CAIRO_STATUS_INVALID_INDEX. If @pattern has no current patch, + * @pattern will be put into an error status with a status of + * %CAIRO_STATUS_INVALID_MESH_CONSTRUCTION. + * + * Since: 1.12 + **/ +void +cairo_mesh_pattern_set_control_point (cairo_pattern_t *pattern, + unsigned int point_num, + double x, + double y) +{ + cairo_mesh_pattern_t *mesh; + int i, j; + + if (unlikely (pattern->status)) + return; + + if (unlikely (pattern->type != CAIRO_PATTERN_TYPE_MESH)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + return; + } + + if (unlikely (point_num > 3)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_INVALID_INDEX); + return; + } + + mesh = (cairo_mesh_pattern_t *) pattern; + if (unlikely (!mesh->current_patch)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_INVALID_MESH_CONSTRUCTION); + return; + } + + i = mesh_control_point_i[point_num]; + j = mesh_control_point_j[point_num]; + + mesh->current_patch->points[i][j].x = x; + mesh->current_patch->points[i][j].y = y; + mesh->has_control_point[point_num] = TRUE; +} + +/* make room for at least one more color stop */ +static cairo_status_t +_cairo_pattern_gradient_grow (cairo_gradient_pattern_t *pattern) +{ + cairo_gradient_stop_t *new_stops; + int old_size = pattern->stops_size; + int embedded_size = ARRAY_LENGTH (pattern->stops_embedded); + int new_size = 2 * MAX (old_size, 4); + + /* we have a local buffer at pattern->stops_embedded. try to fulfill the request + * from there. */ + if (old_size < embedded_size) { + pattern->stops = pattern->stops_embedded; + pattern->stops_size = embedded_size; + return CAIRO_STATUS_SUCCESS; + } + + if (CAIRO_INJECT_FAULT ()) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + assert (pattern->n_stops <= pattern->stops_size); + + if (pattern->stops == pattern->stops_embedded) { + new_stops = _cairo_malloc_ab (new_size, sizeof (cairo_gradient_stop_t)); + if (new_stops) + memcpy (new_stops, pattern->stops, old_size * sizeof (cairo_gradient_stop_t)); + } else { + new_stops = _cairo_realloc_ab (pattern->stops, + new_size, + sizeof (cairo_gradient_stop_t)); + } + + if (unlikely (new_stops == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + pattern->stops = new_stops; + pattern->stops_size = new_size; + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_mesh_pattern_set_corner_color (cairo_mesh_pattern_t *mesh, + unsigned int corner_num, + double red, double green, double blue, + double alpha) +{ + cairo_color_t *color; + + assert (mesh->current_patch); + assert (corner_num <= 3); + + color = &mesh->current_patch->colors[corner_num]; + color->red = red; + color->green = green; + color->blue = blue; + color->alpha = alpha; + + color->red_short = _cairo_color_double_to_short (red); + color->green_short = _cairo_color_double_to_short (green); + color->blue_short = _cairo_color_double_to_short (blue); + color->alpha_short = _cairo_color_double_to_short (alpha); + + mesh->has_color[corner_num] = TRUE; +} + +/** + * cairo_mesh_pattern_set_corner_color_rgb: + * @pattern: a #cairo_pattern_t + * @corner_num: the corner to set the color for + * @red: red component of color + * @green: green component of color + * @blue: blue component of color + * + * Sets the color of a corner of the current patch in a mesh pattern. + * + * The color is specified in the same way as in cairo_set_source_rgb(). + * + * Valid values for @corner_num are from 0 to 3 and identify the + * corners as explained in cairo_pattern_create_mesh(). + * + * Note: If @pattern is not a mesh pattern then @pattern will be put + * into an error status with a status of + * %CAIRO_STATUS_PATTERN_TYPE_MISMATCH. If @corner_num is not valid, + * @pattern will be put into an error status with a status of + * %CAIRO_STATUS_INVALID_INDEX. If @pattern has no current patch, + * @pattern will be put into an error status with a status of + * %CAIRO_STATUS_INVALID_MESH_CONSTRUCTION. + * + * Since: 1.12 + **/ +void +cairo_mesh_pattern_set_corner_color_rgb (cairo_pattern_t *pattern, + unsigned int corner_num, + double red, double green, double blue) +{ + cairo_mesh_pattern_set_corner_color_rgba (pattern, corner_num, red, green, blue, 1.0); +} + +/** + * cairo_mesh_pattern_set_corner_color_rgba: + * @pattern: a #cairo_pattern_t + * @corner_num: the corner to set the color for + * @red: red component of color + * @green: green component of color + * @blue: blue component of color + * @alpha: alpha component of color + * + * Sets the color of a corner of the current patch in a mesh pattern. + * + * The color is specified in the same way as in cairo_set_source_rgba(). + * + * Valid values for @corner_num are from 0 to 3 and identify the + * corners as explained in cairo_pattern_create_mesh(). + * + * Note: If @pattern is not a mesh pattern then @pattern will be put + * into an error status with a status of + * %CAIRO_STATUS_PATTERN_TYPE_MISMATCH. If @corner_num is not valid, + * @pattern will be put into an error status with a status of + * %CAIRO_STATUS_INVALID_INDEX. If @pattern has no current patch, + * @pattern will be put into an error status with a status of + * %CAIRO_STATUS_INVALID_MESH_CONSTRUCTION. + * + * Since: 1.12 + **/ +void +cairo_mesh_pattern_set_corner_color_rgba (cairo_pattern_t *pattern, + unsigned int corner_num, + double red, double green, double blue, + double alpha) +{ + cairo_mesh_pattern_t *mesh; + + if (unlikely (pattern->status)) + return; + + if (unlikely (pattern->type != CAIRO_PATTERN_TYPE_MESH)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + return; + } + + if (unlikely (corner_num > 3)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_INVALID_INDEX); + return; + } + + mesh = (cairo_mesh_pattern_t *) pattern; + if (unlikely (!mesh->current_patch)) { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_INVALID_MESH_CONSTRUCTION); + return; + } + + red = _cairo_restrict_value (red, 0.0, 1.0); + green = _cairo_restrict_value (green, 0.0, 1.0); + blue = _cairo_restrict_value (blue, 0.0, 1.0); + alpha = _cairo_restrict_value (alpha, 0.0, 1.0); + + _cairo_mesh_pattern_set_corner_color (mesh, corner_num, red, green, blue, alpha); +} + +static void +_cairo_pattern_add_color_stop (cairo_gradient_pattern_t *pattern, + double offset, + double red, + double green, + double blue, + double alpha) +{ + cairo_gradient_stop_t *stops; + unsigned int i; + + if (pattern->n_stops >= pattern->stops_size) { + cairo_status_t status = _cairo_pattern_gradient_grow (pattern); + if (unlikely (status)) { + status = _cairo_pattern_set_error (&pattern->base, status); + return; + } + } + + stops = pattern->stops; + + for (i = 0; i < pattern->n_stops; i++) + { + if (offset < stops[i].offset) + { + memmove (&stops[i + 1], &stops[i], + sizeof (cairo_gradient_stop_t) * (pattern->n_stops - i)); + + break; + } + } + + stops[i].offset = offset; + + stops[i].color.red = red; + stops[i].color.green = green; + stops[i].color.blue = blue; + stops[i].color.alpha = alpha; + + stops[i].color.red_short = _cairo_color_double_to_short (red); + stops[i].color.green_short = _cairo_color_double_to_short (green); + stops[i].color.blue_short = _cairo_color_double_to_short (blue); + stops[i].color.alpha_short = _cairo_color_double_to_short (alpha); + + pattern->n_stops++; +} + +/** + * cairo_pattern_add_color_stop_rgb: + * @pattern: a #cairo_pattern_t + * @offset: an offset in the range [0.0 .. 1.0] + * @red: red component of color + * @green: green component of color + * @blue: blue component of color + * + * Adds an opaque color stop to a gradient pattern. The offset + * specifies the location along the gradient's control vector. For + * example, a linear gradient's control vector is from (x0,y0) to + * (x1,y1) while a radial gradient's control vector is from any point + * on the start circle to the corresponding point on the end circle. + * + * The color is specified in the same way as in cairo_set_source_rgb(). + * + * If two (or more) stops are specified with identical offset values, + * they will be sorted according to the order in which the stops are + * added, (stops added earlier will compare less than stops added + * later). This can be useful for reliably making sharp color + * transitions instead of the typical blend. + * + * + * Note: If the pattern is not a gradient pattern, (eg. a linear or + * radial pattern), then the pattern will be put into an error status + * with a status of %CAIRO_STATUS_PATTERN_TYPE_MISMATCH. + * + * Since: 1.0 + **/ +void +cairo_pattern_add_color_stop_rgb (cairo_pattern_t *pattern, + double offset, + double red, + double green, + double blue) +{ + cairo_pattern_add_color_stop_rgba (pattern, offset, red, green, blue, 1.0); +} + +/** + * cairo_pattern_add_color_stop_rgba: + * @pattern: a #cairo_pattern_t + * @offset: an offset in the range [0.0 .. 1.0] + * @red: red component of color + * @green: green component of color + * @blue: blue component of color + * @alpha: alpha component of color + * + * Adds a translucent color stop to a gradient pattern. The offset + * specifies the location along the gradient's control vector. For + * example, a linear gradient's control vector is from (x0,y0) to + * (x1,y1) while a radial gradient's control vector is from any point + * on the start circle to the corresponding point on the end circle. + * + * The color is specified in the same way as in cairo_set_source_rgba(). + * + * If two (or more) stops are specified with identical offset values, + * they will be sorted according to the order in which the stops are + * added, (stops added earlier will compare less than stops added + * later). This can be useful for reliably making sharp color + * transitions instead of the typical blend. + * + * Note: If the pattern is not a gradient pattern, (eg. a linear or + * radial pattern), then the pattern will be put into an error status + * with a status of %CAIRO_STATUS_PATTERN_TYPE_MISMATCH. + * + * Since: 1.0 + **/ +void +cairo_pattern_add_color_stop_rgba (cairo_pattern_t *pattern, + double offset, + double red, + double green, + double blue, + double alpha) +{ + if (pattern->status) + return; + + if (pattern->type != CAIRO_PATTERN_TYPE_LINEAR && + pattern->type != CAIRO_PATTERN_TYPE_RADIAL) + { + _cairo_pattern_set_error (pattern, CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + return; + } + + offset = _cairo_restrict_value (offset, 0.0, 1.0); + red = _cairo_restrict_value (red, 0.0, 1.0); + green = _cairo_restrict_value (green, 0.0, 1.0); + blue = _cairo_restrict_value (blue, 0.0, 1.0); + alpha = _cairo_restrict_value (alpha, 0.0, 1.0); + + _cairo_pattern_add_color_stop ((cairo_gradient_pattern_t *) pattern, + offset, red, green, blue, alpha); +} + +/** + * cairo_pattern_set_matrix: + * @pattern: a #cairo_pattern_t + * @matrix: a #cairo_matrix_t + * + * Sets the pattern's transformation matrix to @matrix. This matrix is + * a transformation from user space to pattern space. + * + * When a pattern is first created it always has the identity matrix + * for its transformation matrix, which means that pattern space is + * initially identical to user space. + * + * Important: Please note that the direction of this transformation + * matrix is from user space to pattern space. This means that if you + * imagine the flow from a pattern to user space (and on to device + * space), then coordinates in that flow will be transformed by the + * inverse of the pattern matrix. + * + * For example, if you want to make a pattern appear twice as large as + * it does by default the correct code to use is: + * + * + * cairo_matrix_init_scale (&matrix, 0.5, 0.5); + * cairo_pattern_set_matrix (pattern, &matrix); + * + * + * Meanwhile, using values of 2.0 rather than 0.5 in the code above + * would cause the pattern to appear at half of its default size. + * + * Also, please note the discussion of the user-space locking + * semantics of cairo_set_source(). + * + * Since: 1.0 + **/ +void +cairo_pattern_set_matrix (cairo_pattern_t *pattern, + const cairo_matrix_t *matrix) +{ + cairo_matrix_t inverse; + cairo_status_t status; + + if (pattern->status) + return; + + if (memcmp (&pattern->matrix, matrix, sizeof (cairo_matrix_t)) == 0) + return; + + pattern->matrix = *matrix; + _cairo_pattern_notify_observers (pattern, CAIRO_PATTERN_NOTIFY_MATRIX); + + inverse = *matrix; + status = cairo_matrix_invert (&inverse); + if (unlikely (status)) + status = _cairo_pattern_set_error (pattern, status); +} + +/** + * cairo_pattern_get_matrix: + * @pattern: a #cairo_pattern_t + * @matrix: return value for the matrix + * + * Stores the pattern's transformation matrix into @matrix. + * + * Since: 1.0 + **/ +void +cairo_pattern_get_matrix (cairo_pattern_t *pattern, cairo_matrix_t *matrix) +{ + *matrix = pattern->matrix; +} + +/** + * cairo_pattern_set_filter: + * @pattern: a #cairo_pattern_t + * @filter: a #cairo_filter_t describing the filter to use for resizing + * the pattern + * + * Sets the filter to be used for resizing when using this pattern. + * See #cairo_filter_t for details on each filter. + * + * * Note that you might want to control filtering even when you do not + * have an explicit #cairo_pattern_t object, (for example when using + * cairo_set_source_surface()). In these cases, it is convenient to + * use cairo_get_source() to get access to the pattern that cairo + * creates implicitly. For example: + * + * + * cairo_set_source_surface (cr, image, x, y); + * cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + * + * + * Since: 1.0 + **/ +void +cairo_pattern_set_filter (cairo_pattern_t *pattern, cairo_filter_t filter) +{ + if (pattern->status) + return; + + pattern->filter = filter; + _cairo_pattern_notify_observers (pattern, CAIRO_PATTERN_NOTIFY_FILTER); +} + +/** + * cairo_pattern_get_filter: + * @pattern: a #cairo_pattern_t + * + * Gets the current filter for a pattern. See #cairo_filter_t + * for details on each filter. + * + * Return value: the current filter used for resizing the pattern. + * + * Since: 1.0 + **/ +cairo_filter_t +cairo_pattern_get_filter (cairo_pattern_t *pattern) +{ + return pattern->filter; +} + +/** + * cairo_pattern_get_dither: + * @pattern: a #cairo_pattern_t + * + * Gets the current dithering mode, as set by + * cairo_pattern_set_dither(). + * + * Return value: the current dithering mode. + * + * Since: 1.18 + **/ +cairo_dither_t +cairo_pattern_get_dither (cairo_pattern_t *pattern) +{ + return pattern->dither; +} + +/** + * cairo_pattern_set_dither: + * @pattern: a #cairo_pattern_t + * @dither: a #cairo_dither_t describing the new dithering mode + * + * Set the dithering mode of the rasterizer used for drawing shapes. + * This value is a hint, and a particular backend may or may not support + * a particular value. At the current time, only pixman is supported. + * + * Since: 1.18 + **/ +void +cairo_pattern_set_dither (cairo_pattern_t *pattern, cairo_dither_t dither) +{ + if (pattern->status) + return; + + pattern->dither = dither; + _cairo_pattern_notify_observers (pattern, CAIRO_PATTERN_NOTIFY_DITHER); + +} + +/** + * cairo_pattern_set_extend: + * @pattern: a #cairo_pattern_t + * @extend: a #cairo_extend_t describing how the area outside of the + * pattern will be drawn + * + * Sets the mode to be used for drawing outside the area of a pattern. + * See #cairo_extend_t for details on the semantics of each extend + * strategy. + * + * The default extend mode is %CAIRO_EXTEND_NONE for surface patterns + * and %CAIRO_EXTEND_PAD for gradient patterns. + * + * Since: 1.0 + **/ +void +cairo_pattern_set_extend (cairo_pattern_t *pattern, cairo_extend_t extend) +{ + if (pattern->status) + return; + + pattern->extend = extend; + _cairo_pattern_notify_observers (pattern, CAIRO_PATTERN_NOTIFY_EXTEND); +} + +/** + * cairo_pattern_get_extend: + * @pattern: a #cairo_pattern_t + * + * Gets the current extend mode for a pattern. See #cairo_extend_t + * for details on the semantics of each extend strategy. + * + * Return value: the current extend strategy used for drawing the + * pattern. + * + * Since: 1.0 + **/ +cairo_extend_t +cairo_pattern_get_extend (cairo_pattern_t *pattern) +{ + return pattern->extend; +} + +void +_cairo_pattern_pretransform (cairo_pattern_t *pattern, + const cairo_matrix_t *ctm) +{ + if (pattern->status) + return; + + cairo_matrix_multiply (&pattern->matrix, &pattern->matrix, ctm); +} + +void +_cairo_pattern_transform (cairo_pattern_t *pattern, + const cairo_matrix_t *ctm_inverse) +{ + if (pattern->status) + return; + + cairo_matrix_multiply (&pattern->matrix, ctm_inverse, &pattern->matrix); +} + +static cairo_bool_t +_linear_pattern_is_degenerate (const cairo_linear_pattern_t *linear) +{ + return fabs (linear->pd1.x - linear->pd2.x) < DBL_EPSILON && + fabs (linear->pd1.y - linear->pd2.y) < DBL_EPSILON; +} + +static cairo_bool_t +_radial_pattern_is_degenerate (const cairo_radial_pattern_t *radial) +{ + /* A radial pattern is considered degenerate if it can be + * represented as a solid or clear pattern. This corresponds to + * one of the two cases: + * + * 1) The radii are both very small: + * |dr| < DBL_EPSILON && min (r0, r1) < DBL_EPSILON + * + * 2) The two circles have about the same radius and are very + * close to each other (approximately a cylinder gradient that + * doesn't move with the parameter): + * |dr| < DBL_EPSILON && max (|dx|, |dy|) < 2 * DBL_EPSILON + * + * These checks are consistent with the assumptions used in + * _cairo_radial_pattern_box_to_parameter (). + */ + + return fabs (radial->cd1.radius - radial->cd2.radius) < DBL_EPSILON && + (MIN (radial->cd1.radius, radial->cd2.radius) < DBL_EPSILON || + MAX (fabs (radial->cd1.center.x - radial->cd2.center.x), + fabs (radial->cd1.center.y - radial->cd2.center.y)) < 2 * DBL_EPSILON); +} + +static void +_cairo_linear_pattern_box_to_parameter (const cairo_linear_pattern_t *linear, + double x0, double y0, + double x1, double y1, + double range[2]) +{ + double t0, tdx, tdy; + double p1x, p1y, pdx, pdy, invsqnorm; + + assert (! _linear_pattern_is_degenerate (linear)); + + /* + * Linear gradients are othrogonal to the line passing through + * their extremes. Because of convexity, the parameter range can + * be computed as the convex hull (one the real line) of the + * parameter values of the 4 corners of the box. + * + * The parameter value t for a point (x,y) can be computed as: + * + * t = (p2 - p1) . (x,y) / |p2 - p1|^2 + * + * t0 is the t value for the top left corner + * tdx is the difference between left and right corners + * tdy is the difference between top and bottom corners + */ + + p1x = linear->pd1.x; + p1y = linear->pd1.y; + pdx = linear->pd2.x - p1x; + pdy = linear->pd2.y - p1y; + invsqnorm = 1.0 / (pdx * pdx + pdy * pdy); + pdx *= invsqnorm; + pdy *= invsqnorm; + + t0 = (x0 - p1x) * pdx + (y0 - p1y) * pdy; + tdx = (x1 - x0) * pdx; + tdy = (y1 - y0) * pdy; + + /* + * Because of the linearity of the t value, tdx can simply be + * added the t0 to move along the top edge. After this, range[0] + * and range[1] represent the parameter range for the top edge, so + * extending it to include the whole box simply requires adding + * tdy to the correct extreme. + */ + + range[0] = range[1] = t0; + if (tdx < 0) + range[0] += tdx; + else + range[1] += tdx; + + if (tdy < 0) + range[0] += tdy; + else + range[1] += tdy; +} + +static cairo_bool_t +_extend_range (double range[2], double value, cairo_bool_t valid) +{ + if (!valid) + range[0] = range[1] = value; + else if (value < range[0]) + range[0] = value; + else if (value > range[1]) + range[1] = value; + + return TRUE; +} + +/* + * _cairo_radial_pattern_focus_is_inside: + * + * Returns %TRUE if and only if the focus point exists and is + * contained in one of the two extreme circles. This condition is + * equivalent to one of the two extreme circles being completely + * contained in the other one. + * + * Note: if the focus is on the border of one of the two circles (in + * which case the circles are tangent in the focus point), it is not + * considered as contained in the circle, hence this function returns + * %FALSE. + * + */ +cairo_bool_t +_cairo_radial_pattern_focus_is_inside (const cairo_radial_pattern_t *radial) +{ + double cx, cy, cr, dx, dy, dr; + + cx = radial->cd1.center.x; + cy = radial->cd1.center.y; + cr = radial->cd1.radius; + dx = radial->cd2.center.x - cx; + dy = radial->cd2.center.y - cy; + dr = radial->cd2.radius - cr; + + return dx*dx + dy*dy < dr*dr; +} + +static void +_cairo_radial_pattern_box_to_parameter (const cairo_radial_pattern_t *radial, + double x0, double y0, + double x1, double y1, + double tolerance, + double range[2]) +{ + double cx, cy, cr, dx, dy, dr; + double a, x_focus, y_focus; + double mindr, minx, miny, maxx, maxy; + cairo_bool_t valid; + + assert (! _radial_pattern_is_degenerate (radial)); + assert (x0 < x1); + assert (y0 < y1); + + tolerance = MAX (tolerance, DBL_EPSILON); + + range[0] = range[1] = 0; + valid = FALSE; + + x_focus = y_focus = 0; /* silence gcc */ + + cx = radial->cd1.center.x; + cy = radial->cd1.center.y; + cr = radial->cd1.radius; + dx = radial->cd2.center.x - cx; + dy = radial->cd2.center.y - cy; + dr = radial->cd2.radius - cr; + + /* translate by -(cx, cy) to simplify computations */ + x0 -= cx; + y0 -= cy; + x1 -= cx; + y1 -= cy; + + /* enlarge boundaries slightly to avoid rounding problems in the + * parameter range computation */ + x0 -= DBL_EPSILON; + y0 -= DBL_EPSILON; + x1 += DBL_EPSILON; + y1 += DBL_EPSILON; + + /* enlarge boundaries even more to avoid rounding problems when + * testing if a point belongs to the box */ + minx = x0 - DBL_EPSILON; + miny = y0 - DBL_EPSILON; + maxx = x1 + DBL_EPSILON; + maxy = y1 + DBL_EPSILON; + + /* we don't allow negative radiuses, so we will be checking that + * t*dr >= mindr to consider t valid */ + mindr = -(cr + DBL_EPSILON); + + /* + * After the previous transformations, the start circle is + * centered in the origin and has radius cr. A 1-unit change in + * the t parameter corresponds to dx,dy,dr changes in the x,y,r of + * the circle (center coordinates, radius). + * + * To compute the minimum range needed to correctly draw the + * pattern, we start with an empty range and extend it to include + * the circles touching the bounding box or within it. + */ + + /* + * Focus, the point where the circle has radius == 0. + * + * r = cr + t * dr = 0 + * t = -cr / dr + * + * If the radius is constant (dr == 0) there is no focus (the + * gradient represents a cylinder instead of a cone). + */ + if (fabs (dr) >= DBL_EPSILON) { + double t_focus; + + t_focus = -cr / dr; + x_focus = t_focus * dx; + y_focus = t_focus * dy; + if (minx <= x_focus && x_focus <= maxx && + miny <= y_focus && y_focus <= maxy) + { + valid = _extend_range (range, t_focus, valid); + } + } + + /* + * Circles externally tangent to box edges. + * + * All circles have center in (dx, dy) * t + * + * If the circle is tangent to the line defined by the edge of the + * box, then at least one of the following holds true: + * + * (dx*t) + (cr + dr*t) == x0 (left edge) + * (dx*t) - (cr + dr*t) == x1 (right edge) + * (dy*t) + (cr + dr*t) == y0 (top edge) + * (dy*t) - (cr + dr*t) == y1 (bottom edge) + * + * The solution is only valid if the tangent point is actually on + * the edge, i.e. if its y coordinate is in [y0,y1] for left/right + * edges and if its x coordinate is in [x0,x1] for top/bottom + * edges. + * + * For the first equation: + * + * (dx + dr) * t = x0 - cr + * t = (x0 - cr) / (dx + dr) + * y = dy * t + * + * in the code this becomes: + * + * t_edge = (num) / (den) + * v = (delta) * t_edge + * + * If the denominator in t is 0, the pattern is tangent to a line + * parallel to the edge under examination. The corner-case where + * the boundary line is the same as the edge is handled by the + * focus point case and/or by the a==0 case. + */ +#define T_EDGE(num,den,delta,lower,upper) \ + if (fabs (den) >= DBL_EPSILON) { \ + double t_edge, v; \ + \ + t_edge = (num) / (den); \ + v = t_edge * (delta); \ + if (t_edge * dr >= mindr && (lower) <= v && v <= (upper)) \ + valid = _extend_range (range, t_edge, valid); \ + } + + /* circles tangent (externally) to left/right/top/bottom edge */ + T_EDGE (x0 - cr, dx + dr, dy, miny, maxy); + T_EDGE (x1 + cr, dx - dr, dy, miny, maxy); + T_EDGE (y0 - cr, dy + dr, dx, minx, maxx); + T_EDGE (y1 + cr, dy - dr, dx, minx, maxx); + +#undef T_EDGE + + /* + * Circles passing through a corner. + * + * A circle passing through the point (x,y) satisfies: + * + * (x-t*dx)^2 + (y-t*dy)^2 == (cr + t*dr)^2 + * + * If we set: + * a = dx^2 + dy^2 - dr^2 + * b = x*dx + y*dy + cr*dr + * c = x^2 + y^2 - cr^2 + * we have: + * a*t^2 - 2*b*t + c == 0 + */ + a = dx * dx + dy * dy - dr * dr; + if (fabs (a) < DBL_EPSILON * DBL_EPSILON) { + double b, maxd2; + + /* Ensure that gradients with both a and dr small are + * considered degenerate. + * The floating point version of the degeneracy test implemented + * in _radial_pattern_is_degenerate() is: + * + * 1) The circles are practically the same size: + * |dr| < DBL_EPSILON + * AND + * 2a) The circles are both very small: + * min (r0, r1) < DBL_EPSILON + * OR + * 2b) The circles are very close to each other: + * max (|dx|, |dy|) < 2 * DBL_EPSILON + * + * Assuming that the gradient is not degenerate, we want to + * show that |a| < DBL_EPSILON^2 implies |dr| >= DBL_EPSILON. + * + * If the gradient is not degenerate yet it has |dr| < + * DBL_EPSILON, (2b) is false, thus: + * + * max (|dx|, |dy|) >= 2*DBL_EPSILON + * which implies: + * 4*DBL_EPSILON^2 <= max (|dx|, |dy|)^2 <= dx^2 + dy^2 + * + * From the definition of a, we get: + * a = dx^2 + dy^2 - dr^2 < DBL_EPSILON^2 + * dx^2 + dy^2 - DBL_EPSILON^2 < dr^2 + * 3*DBL_EPSILON^2 < dr^2 + * + * which is inconsistent with the hypotheses, thus |dr| < + * DBL_EPSILON is false or the gradient is degenerate. + */ + assert (fabs (dr) >= DBL_EPSILON); + + /* + * If a == 0, all the circles are tangent to a line in the + * focus point. If this line is within the box extents, we + * should add the circle with infinite radius, but this would + * make the range unbounded, so we add the smallest circle whose + * distance to the desired (degenerate) circle within the + * bounding box does not exceed tolerance. + * + * The equation of the line is b==0, i.e.: + * x*dx + y*dy + cr*dr == 0 + * + * We compute the intersection of the line with the box and + * keep the intersection with maximum square distance (maxd2) + * from the focus point. + * + * In the code the intersection is represented in another + * coordinate system, whose origin is the focus point and + * which has a u,v axes, which are respectively orthogonal and + * parallel to the edge being intersected. + * + * The intersection is valid only if it belongs to the box, + * otherwise it is ignored. + * + * For example: + * + * y = y0 + * x*dx + y0*dy + cr*dr == 0 + * x = -(y0*dy + cr*dr) / dx + * + * which in (u,v) is: + * u = y0 - y_focus + * v = -(y0*dy + cr*dr) / dx - x_focus + * + * In the code: + * u = (edge) - (u_origin) + * v = -((edge) * (delta) + cr*dr) / (den) - v_focus + */ +#define T_EDGE(edge,delta,den,lower,upper,u_origin,v_origin) \ + if (fabs (den) >= DBL_EPSILON) { \ + double v; \ + \ + v = -((edge) * (delta) + cr * dr) / (den); \ + if ((lower) <= v && v <= (upper)) { \ + double u, d2; \ + \ + u = (edge) - (u_origin); \ + v -= (v_origin); \ + d2 = u*u + v*v; \ + if (maxd2 < d2) \ + maxd2 = d2; \ + } \ + } + + maxd2 = 0; + + /* degenerate circles (lines) passing through each edge */ + T_EDGE (y0, dy, dx, minx, maxx, y_focus, x_focus); + T_EDGE (y1, dy, dx, minx, maxx, y_focus, x_focus); + T_EDGE (x0, dx, dy, miny, maxy, x_focus, y_focus); + T_EDGE (x1, dx, dy, miny, maxy, x_focus, y_focus); + +#undef T_EDGE + + /* + * The limit circle can be transformed rigidly to the y=0 line + * and the circles tangent to it in (0,0) are: + * + * x^2 + (y-r)^2 = r^2 <=> x^2 + y^2 - 2*y*r = 0 + * + * y is the distance from the line, in our case tolerance; + * x is the distance along the line, i.e. sqrt(maxd2), + * so: + * + * r = cr + dr * t = (maxd2 + tolerance^2) / (2*tolerance) + * t = (r - cr) / dr = + * (maxd2 + tolerance^2 - 2*tolerance*cr) / (2*tolerance*dr) + */ + if (maxd2 > 0) { + double t_limit = maxd2 + tolerance*tolerance - 2*tolerance*cr; + t_limit /= 2 * tolerance * dr; + valid = _extend_range (range, t_limit, valid); + } + + /* + * Nondegenerate, nonlimit circles passing through the corners. + * + * a == 0 && a*t^2 - 2*b*t + c == 0 + * + * t = c / (2*b) + * + * The b == 0 case has just been handled, so we only have to + * compute this if b != 0. + */ +#define T_CORNER(x,y) \ + b = (x) * dx + (y) * dy + cr * dr; \ + if (fabs (b) >= DBL_EPSILON) { \ + double t_corner; \ + double x2 = (x) * (x); \ + double y2 = (y) * (y); \ + double cr2 = (cr) * (cr); \ + double c = x2 + y2 - cr2; \ + \ + t_corner = 0.5 * c / b; \ + if (t_corner * dr >= mindr) \ + valid = _extend_range (range, t_corner, valid); \ + } + + /* circles touching each corner */ + T_CORNER (x0, y0); + T_CORNER (x0, y1); + T_CORNER (x1, y0); + T_CORNER (x1, y1); + +#undef T_CORNER + } else { + double inva, b, c, d; + + inva = 1 / a; + + /* + * Nondegenerate, nonlimit circles passing through the corners. + * + * a != 0 && a*t^2 - 2*b*t + c == 0 + * + * t = (b +- sqrt (b*b - a*c)) / a + * + * If the argument of sqrt() is negative, then no circle + * passes through the corner. + */ +#define T_CORNER(x,y) \ + b = (x) * dx + (y) * dy + cr * dr; \ + c = (x) * (x) + (y) * (y) - cr * cr; \ + d = b * b - a * c; \ + if (d >= 0) { \ + double t_corner; \ + \ + d = sqrt (d); \ + t_corner = (b + d) * inva; \ + if (t_corner * dr >= mindr) \ + valid = _extend_range (range, t_corner, valid); \ + t_corner = (b - d) * inva; \ + if (t_corner * dr >= mindr) \ + valid = _extend_range (range, t_corner, valid); \ + } + + /* circles touching each corner */ + T_CORNER (x0, y0); + T_CORNER (x0, y1); + T_CORNER (x1, y0); + T_CORNER (x1, y1); + +#undef T_CORNER + } +} + +/** + * _cairo_gradient_pattern_box_to_parameter: + * + * Compute a interpolation range sufficient to draw (within the given + * tolerance) the gradient in the given box getting the same result as + * using the (-inf, +inf) range. + * + * Assumes that the pattern is not degenerate. This can be guaranteed + * by simplifying it to a solid clear if _cairo_pattern_is_clear or to + * a solid color if _cairo_gradient_pattern_is_solid. + * + * The range isn't guaranteed to be minimal, but it tries to. + **/ +void +_cairo_gradient_pattern_box_to_parameter (const cairo_gradient_pattern_t *gradient, + double x0, double y0, + double x1, double y1, + double tolerance, + double out_range[2]) +{ + assert (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR || + gradient->base.type == CAIRO_PATTERN_TYPE_RADIAL); + + if (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR) { + _cairo_linear_pattern_box_to_parameter ((cairo_linear_pattern_t *) gradient, + x0, y0, x1, y1, out_range); + } else { + _cairo_radial_pattern_box_to_parameter ((cairo_radial_pattern_t *) gradient, + x0, y0, x1, y1, tolerance, out_range); + } +} + +/** + * _cairo_gradient_pattern_interpolate: + * + * Interpolate between the start and end objects of linear or radial + * gradients. The interpolated object is stored in out_circle, with + * the radius being zero in the linear gradient case. + **/ +void +_cairo_gradient_pattern_interpolate (const cairo_gradient_pattern_t *gradient, + double t, + cairo_circle_double_t *out_circle) +{ + assert (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR || + gradient->base.type == CAIRO_PATTERN_TYPE_RADIAL); + +#define lerp(a,b) (a)*(1-t) + (b)*t + + if (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR) { + cairo_linear_pattern_t *linear = (cairo_linear_pattern_t *) gradient; + out_circle->center.x = lerp (linear->pd1.x, linear->pd2.x); + out_circle->center.y = lerp (linear->pd1.y, linear->pd2.y); + out_circle->radius = 0; + } else { + cairo_radial_pattern_t *radial = (cairo_radial_pattern_t *) gradient; + out_circle->center.x = lerp (radial->cd1.center.x, radial->cd2.center.x); + out_circle->center.y = lerp (radial->cd1.center.y, radial->cd2.center.y); + out_circle->radius = lerp (radial->cd1.radius , radial->cd2.radius); + } + +#undef lerp +} + +/** + * _cairo_gradient_pattern_fit_to_range: + * + * Scale the extremes of a gradient to guarantee that the coordinates + * and their deltas are within the range (-max_value, max_value). The + * new extremes are stored in out_circle. + * + * The pattern matrix is scaled to guarantee that the aspect of the + * gradient is the same and the result is stored in out_matrix. + * + **/ +void +_cairo_gradient_pattern_fit_to_range (const cairo_gradient_pattern_t *gradient, + double max_value, + cairo_matrix_t *out_matrix, + cairo_circle_double_t out_circle[2]) +{ + double dim; + + assert (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR || + gradient->base.type == CAIRO_PATTERN_TYPE_RADIAL); + + if (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR) { + cairo_linear_pattern_t *linear = (cairo_linear_pattern_t *) gradient; + + out_circle[0].center = linear->pd1; + out_circle[0].radius = 0; + out_circle[1].center = linear->pd2; + out_circle[1].radius = 0; + + dim = fabs (linear->pd1.x); + dim = MAX (dim, fabs (linear->pd1.y)); + dim = MAX (dim, fabs (linear->pd2.x)); + dim = MAX (dim, fabs (linear->pd2.y)); + dim = MAX (dim, fabs (linear->pd1.x - linear->pd2.x)); + dim = MAX (dim, fabs (linear->pd1.y - linear->pd2.y)); + } else { + cairo_radial_pattern_t *radial = (cairo_radial_pattern_t *) gradient; + + out_circle[0] = radial->cd1; + out_circle[1] = radial->cd2; + + dim = fabs (radial->cd1.center.x); + dim = MAX (dim, fabs (radial->cd1.center.y)); + dim = MAX (dim, fabs (radial->cd1.radius)); + dim = MAX (dim, fabs (radial->cd2.center.x)); + dim = MAX (dim, fabs (radial->cd2.center.y)); + dim = MAX (dim, fabs (radial->cd2.radius)); + dim = MAX (dim, fabs (radial->cd1.center.x - radial->cd2.center.x)); + dim = MAX (dim, fabs (radial->cd1.center.y - radial->cd2.center.y)); + dim = MAX (dim, fabs (radial->cd1.radius - radial->cd2.radius)); + } + dim = MAX (dim, fabs (gradient->base.matrix.xx)); + dim = MAX (dim, fabs (gradient->base.matrix.xy)); + dim = MAX (dim, fabs (gradient->base.matrix.x0)); + dim = MAX (dim, fabs (gradient->base.matrix.yx)); + dim = MAX (dim, fabs (gradient->base.matrix.yy)); + dim = MAX (dim, fabs (gradient->base.matrix.y0)); + + if (unlikely (dim > max_value)) { + cairo_matrix_t scale; + + dim = max_value / dim; + + out_circle[0].center.x *= dim; + out_circle[0].center.y *= dim; + out_circle[0].radius *= dim; + out_circle[1].center.x *= dim; + out_circle[1].center.y *= dim; + out_circle[1].radius *= dim; + + cairo_matrix_init_scale (&scale, dim, dim); + cairo_matrix_multiply (out_matrix, &gradient->base.matrix, &scale); + } else { + *out_matrix = gradient->base.matrix; + } +} + +static cairo_bool_t +_gradient_is_clear (const cairo_gradient_pattern_t *gradient, + const cairo_rectangle_int_t *extents) +{ + unsigned int i; + + assert (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR || + gradient->base.type == CAIRO_PATTERN_TYPE_RADIAL); + + if (gradient->n_stops == 0 || + (gradient->base.extend == CAIRO_EXTEND_NONE && + gradient->stops[0].offset == gradient->stops[gradient->n_stops - 1].offset)) + return TRUE; + + if (gradient->base.type == CAIRO_PATTERN_TYPE_RADIAL) { + /* degenerate radial gradients are clear */ + if (_radial_pattern_is_degenerate ((cairo_radial_pattern_t *) gradient)) + return TRUE; + } else if (gradient->base.extend == CAIRO_EXTEND_NONE) { + /* EXTEND_NONE degenerate linear gradients are clear */ + if (_linear_pattern_is_degenerate ((cairo_linear_pattern_t *) gradient)) + return TRUE; + } + + /* Check if the extents intersect the drawn part of the pattern. */ + if (extents != NULL && + (gradient->base.extend == CAIRO_EXTEND_NONE || + gradient->base.type == CAIRO_PATTERN_TYPE_RADIAL)) + { + double t[2]; + + _cairo_gradient_pattern_box_to_parameter (gradient, + extents->x, + extents->y, + extents->x + extents->width, + extents->y + extents->height, + DBL_EPSILON, + t); + + if (gradient->base.extend == CAIRO_EXTEND_NONE && + (t[0] >= gradient->stops[gradient->n_stops - 1].offset || + t[1] <= gradient->stops[0].offset)) + { + return TRUE; + } + + if (t[0] == t[1]) + return TRUE; + } + + for (i = 0; i < gradient->n_stops; i++) + if (! CAIRO_COLOR_IS_CLEAR (&gradient->stops[i].color)) + return FALSE; + + return TRUE; +} + +static void +_gradient_color_average (const cairo_gradient_pattern_t *gradient, + cairo_color_t *color) +{ + double delta0, delta1; + double r, g, b, a; + unsigned int i, start = 1, end; + + assert (gradient->n_stops > 0); + assert (gradient->base.extend != CAIRO_EXTEND_NONE); + + if (gradient->n_stops == 1) { + _cairo_color_init_rgba (color, + gradient->stops[0].color.red, + gradient->stops[0].color.green, + gradient->stops[0].color.blue, + gradient->stops[0].color.alpha); + return; + } + + end = gradient->n_stops - 1; + + switch (gradient->base.extend) { + case CAIRO_EXTEND_REPEAT: + /* + * Sa, Sb and Sy, Sz are the first two and last two stops respectively. + * The weight of the first and last stop can be computed as the area of + * the following triangles (taken with height 1, since the whole [0-1] + * will have total weight 1 this way): b*h/2 + * + * + + + * / |\ / | \ + * / | \ / | \ + * / | \ / | \ + * ~~~~~+---+---+---+~~~~~~~+-------+---+---+~~~~~ + * -1+Sz 0 Sa Sb Sy Sz 1 1+Sa + * + * For the first stop: (Sb-(-1+Sz)/2 = (1+Sb-Sz)/2 + * For the last stop: ((1+Sa)-Sy)/2 = (1+Sa-Sy)/2 + * Halving the result is done after summing up all the areas. + */ + delta0 = 1.0 + gradient->stops[1].offset - gradient->stops[end].offset; + delta1 = 1.0 + gradient->stops[0].offset - gradient->stops[end-1].offset; + break; + + case CAIRO_EXTEND_REFLECT: + /* + * Sa, Sb and Sy, Sz are the first two and last two stops respectively. + * The weight of the first and last stop can be computed as the area of + * the following trapezoids (taken with height 1, since the whole [0-1] + * will have total weight 1 this way): (b+B)*h/2 + * + * +-------+ +---+ + * | |\ / | | + * | | \ / | | + * | | \ / | | + * +-------+---+~~~~~~~+-------+---+ + * 0 Sa Sb Sy Sz 1 + * + * For the first stop: (Sa+Sb)/2 + * For the last stop: ((1-Sz) + (1-Sy))/2 = (2-Sy-Sz)/2 + * Halving the result is done after summing up all the areas. + */ + delta0 = gradient->stops[0].offset + gradient->stops[1].offset; + delta1 = 2.0 - gradient->stops[end-1].offset - gradient->stops[end].offset; + break; + + case CAIRO_EXTEND_PAD: + /* PAD is computed as the average of the first and last stop: + * - take both of them with weight 1 (they will be halved + * after the whole sum has been computed). + * - avoid summing any of the inner stops. + */ + delta0 = delta1 = 1.0; + start = end; + break; + + case CAIRO_EXTEND_NONE: + default: + ASSERT_NOT_REACHED; + _cairo_color_init_rgba (color, 0, 0, 0, 0); + return; + } + + r = delta0 * gradient->stops[0].color.red; + g = delta0 * gradient->stops[0].color.green; + b = delta0 * gradient->stops[0].color.blue; + a = delta0 * gradient->stops[0].color.alpha; + + for (i = start; i < end; ++i) { + /* Inner stops weight is the same as the area of the triangle they influence + * (which goes from the stop before to the stop after), again with height 1 + * since the whole must sum up to 1: b*h/2 + * Halving is done after the whole sum has been computed. + */ + double delta = gradient->stops[i+1].offset - gradient->stops[i-1].offset; + r += delta * gradient->stops[i].color.red; + g += delta * gradient->stops[i].color.green; + b += delta * gradient->stops[i].color.blue; + a += delta * gradient->stops[i].color.alpha; + } + + r += delta1 * gradient->stops[end].color.red; + g += delta1 * gradient->stops[end].color.green; + b += delta1 * gradient->stops[end].color.blue; + a += delta1 * gradient->stops[end].color.alpha; + + _cairo_color_init_rgba (color, r * .5, g * .5, b * .5, a * .5); +} + +/** + * _cairo_pattern_alpha_range: + * + * Convenience function to determine the minimum and maximum alpha in + * the drawn part of a pattern (i.e. ignoring clear parts caused by + * extend modes and/or pattern shape). + * + * If not NULL, out_min and out_max will be set respectively to the + * minimum and maximum alpha value of the pattern. + **/ +void +_cairo_pattern_alpha_range (const cairo_pattern_t *pattern, + double *out_min, + double *out_max) +{ + double alpha_min, alpha_max; + + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: { + const cairo_solid_pattern_t *solid = (cairo_solid_pattern_t *) pattern; + alpha_min = alpha_max = solid->color.alpha; + break; + } + + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: { + const cairo_gradient_pattern_t *gradient = (cairo_gradient_pattern_t *) pattern; + unsigned int i; + + assert (gradient->n_stops >= 1); + + alpha_min = alpha_max = gradient->stops[0].color.alpha; + for (i = 1; i < gradient->n_stops; i++) { + if (alpha_min > gradient->stops[i].color.alpha) + alpha_min = gradient->stops[i].color.alpha; + else if (alpha_max < gradient->stops[i].color.alpha) + alpha_max = gradient->stops[i].color.alpha; + } + + break; + } + + case CAIRO_PATTERN_TYPE_MESH: { + const cairo_mesh_pattern_t *mesh = (const cairo_mesh_pattern_t *) pattern; + const cairo_mesh_patch_t *patch = _cairo_array_index_const (&mesh->patches, 0); + unsigned int i, j, n = _cairo_array_num_elements (&mesh->patches); + + assert (n >= 1); + + alpha_min = alpha_max = patch[0].colors[0].alpha; + for (i = 0; i < n; i++) { + for (j = 0; j < 4; j++) { + if (patch[i].colors[j].alpha < alpha_min) + alpha_min = patch[i].colors[j].alpha; + else if (patch[i].colors[j].alpha > alpha_max) + alpha_max = patch[i].colors[j].alpha; + } + } + + break; + } + + default: + ASSERT_NOT_REACHED; + /* fall through */ + + case CAIRO_PATTERN_TYPE_SURFACE: + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + alpha_min = 0; + alpha_max = 1; + break; + } + + if (out_min) + *out_min = alpha_min; + if (out_max) + *out_max = alpha_max; +} + +/** + * _cairo_mesh_pattern_coord_box: + * + * Convenience function to determine the range of the coordinates of + * the points used to define the patches of the mesh. + * + * This is guaranteed to contain the pattern extents, but might not be + * tight, just like a Bezier curve is always inside the convex hull of + * the control points. + * + * This function cannot be used while the mesh is being constructed. + * + * The function returns TRUE and sets the output parameters to define + * the coordinate range if the mesh pattern contains at least one + * patch, otherwise it returns FALSE. + **/ +cairo_bool_t +_cairo_mesh_pattern_coord_box (const cairo_mesh_pattern_t *mesh, + double *out_xmin, + double *out_ymin, + double *out_xmax, + double *out_ymax) +{ + const cairo_mesh_patch_t *patch; + unsigned int num_patches, i, j, k; + double x0, y0, x1, y1; + + assert (mesh->current_patch == NULL); + + num_patches = _cairo_array_num_elements (&mesh->patches); + + if (num_patches == 0) + return FALSE; + + patch = _cairo_array_index_const (&mesh->patches, 0); + x0 = x1 = patch->points[0][0].x; + y0 = y1 = patch->points[0][0].y; + + for (i = 0; i < num_patches; i++) { + for (j = 0; j < 4; j++) { + for (k = 0; k < 4; k++) { + x0 = MIN (x0, patch[i].points[j][k].x); + y0 = MIN (y0, patch[i].points[j][k].y); + x1 = MAX (x1, patch[i].points[j][k].x); + y1 = MAX (y1, patch[i].points[j][k].y); + } + } + } + + *out_xmin = x0; + *out_ymin = y0; + *out_xmax = x1; + *out_ymax = y1; + + return TRUE; +} + +/** + * _cairo_gradient_pattern_is_solid: + * + * Convenience function to determine whether a gradient pattern is + * a solid color within the given extents. In this case the color + * argument is initialized to the color the pattern represents. + * This functions doesn't handle completely transparent gradients, + * thus it should be called only after _cairo_pattern_is_clear has + * returned FALSE. + * + * Return value: %TRUE if the pattern is a solid color. + **/ +cairo_bool_t +_cairo_gradient_pattern_is_solid (const cairo_gradient_pattern_t *gradient, + const cairo_rectangle_int_t *extents, + cairo_color_t *color) +{ + unsigned int i; + + assert (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR || + gradient->base.type == CAIRO_PATTERN_TYPE_RADIAL); + + /* TODO: radial */ + if (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR) { + cairo_linear_pattern_t *linear = (cairo_linear_pattern_t *) gradient; + if (_linear_pattern_is_degenerate (linear)) { + _gradient_color_average (gradient, color); + return TRUE; + } + + if (gradient->base.extend == CAIRO_EXTEND_NONE) { + double t[2]; + + /* We already know that the pattern is not clear, thus if some + * part of it is clear, the whole is not solid. + */ + + if (extents == NULL) + return FALSE; + + _cairo_linear_pattern_box_to_parameter (linear, + extents->x, + extents->y, + extents->x + extents->width, + extents->y + extents->height, + t); + + if (t[0] < 0.0 || t[1] > 1.0) + return FALSE; + } + } else + return FALSE; + + for (i = 1; i < gradient->n_stops; i++) + if (! _cairo_color_stop_equal (&gradient->stops[0].color, + &gradient->stops[i].color)) + return FALSE; + + _cairo_color_init_rgba (color, + gradient->stops[0].color.red, + gradient->stops[0].color.green, + gradient->stops[0].color.blue, + gradient->stops[0].color.alpha); + + return TRUE; +} + +/** + * _cairo_pattern_is_constant_alpha: + * + * Convenience function to determine whether a pattern has constant + * alpha within the given extents. In this case the alpha argument is + * initialized to the alpha within the extents. + * + * Return value: %TRUE if the pattern has constant alpha. + **/ +cairo_bool_t +_cairo_pattern_is_constant_alpha (const cairo_pattern_t *abstract_pattern, + const cairo_rectangle_int_t *extents, + double *alpha) +{ + const cairo_pattern_union_t *pattern; + cairo_color_t color; + + if (_cairo_pattern_is_clear (abstract_pattern)) { + *alpha = 0.0; + return TRUE; + } + + if (_cairo_pattern_is_opaque (abstract_pattern, extents)) { + *alpha = 1.0; + return TRUE; + } + + pattern = (cairo_pattern_union_t *) abstract_pattern; + switch (pattern->base.type) { + case CAIRO_PATTERN_TYPE_SOLID: + *alpha = pattern->solid.color.alpha; + return TRUE; + + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + if (_cairo_gradient_pattern_is_solid (&pattern->gradient.base, extents, &color)) { + *alpha = color.alpha; + return TRUE; + } else { + return FALSE; + } + + /* TODO: need to test these as well */ + case CAIRO_PATTERN_TYPE_SURFACE: + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + case CAIRO_PATTERN_TYPE_MESH: + return FALSE; + } + + ASSERT_NOT_REACHED; + return FALSE; +} + +static cairo_bool_t +_mesh_is_clear (const cairo_mesh_pattern_t *mesh) +{ + double x1, y1, x2, y2; + cairo_bool_t is_valid; + + is_valid = _cairo_mesh_pattern_coord_box (mesh, &x1, &y1, &x2, &y2); + if (!is_valid) + return TRUE; + + if (x2 - x1 < DBL_EPSILON || y2 - y1 < DBL_EPSILON) + return TRUE; + + return FALSE; +} + +/** + * _cairo_pattern_is_opaque_solid: + * + * Convenience function to determine whether a pattern is an opaque + * (alpha==1.0) solid color pattern. This is done by testing whether + * the pattern's alpha value when converted to a byte is 255, so if a + * backend actually supported deep alpha channels this function might + * not do the right thing. + * + * Return value: %TRUE if the pattern is an opaque, solid color. + **/ +cairo_bool_t +_cairo_pattern_is_opaque_solid (const cairo_pattern_t *pattern) +{ + cairo_solid_pattern_t *solid; + + if (pattern->type != CAIRO_PATTERN_TYPE_SOLID) + return FALSE; + + solid = (cairo_solid_pattern_t *) pattern; + + return CAIRO_COLOR_IS_OPAQUE (&solid->color); +} + +static cairo_bool_t +_surface_is_opaque (const cairo_surface_pattern_t *pattern, + const cairo_rectangle_int_t *sample) +{ + cairo_rectangle_int_t extents; + + if (pattern->surface->content & CAIRO_CONTENT_ALPHA) + return FALSE; + + if (pattern->base.extend != CAIRO_EXTEND_NONE) + return TRUE; + + if (! _cairo_surface_get_extents (pattern->surface, &extents)) + return TRUE; + + if (sample == NULL) + return FALSE; + + return _cairo_rectangle_contains_rectangle (&extents, sample); +} + +static cairo_bool_t +_raster_source_is_opaque (const cairo_raster_source_pattern_t *pattern, + const cairo_rectangle_int_t *sample) +{ + if (pattern->content & CAIRO_CONTENT_ALPHA) + return FALSE; + + if (pattern->base.extend != CAIRO_EXTEND_NONE) + return TRUE; + + if (sample == NULL) + return FALSE; + + return _cairo_rectangle_contains_rectangle (&pattern->extents, sample); +} + +static cairo_bool_t +_surface_is_clear (const cairo_surface_pattern_t *pattern) +{ + cairo_rectangle_int_t extents; + + if (_cairo_surface_get_extents (pattern->surface, &extents) && + (extents.width == 0 || extents.height == 0)) + return TRUE; + + return pattern->surface->is_clear && + pattern->surface->content & CAIRO_CONTENT_ALPHA; +} + +static cairo_bool_t +_raster_source_is_clear (const cairo_raster_source_pattern_t *pattern) +{ + return pattern->extents.width == 0 || pattern->extents.height == 0; +} + +static cairo_bool_t +_gradient_is_opaque (const cairo_gradient_pattern_t *gradient, + const cairo_rectangle_int_t *sample) +{ + unsigned int i; + + assert (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR || + gradient->base.type == CAIRO_PATTERN_TYPE_RADIAL); + + if (gradient->n_stops == 0 || + (gradient->base.extend == CAIRO_EXTEND_NONE && + gradient->stops[0].offset == gradient->stops[gradient->n_stops - 1].offset)) + return FALSE; + + if (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR) { + if (gradient->base.extend == CAIRO_EXTEND_NONE) { + double t[2]; + cairo_linear_pattern_t *linear = (cairo_linear_pattern_t *) gradient; + + /* EXTEND_NONE degenerate radial gradients are clear */ + if (_linear_pattern_is_degenerate (linear)) + return FALSE; + + if (sample == NULL) + return FALSE; + + _cairo_linear_pattern_box_to_parameter (linear, + sample->x, + sample->y, + sample->x + sample->width, + sample->y + sample->height, + t); + + if (t[0] < 0.0 || t[1] > 1.0) + return FALSE; + } + } else + return FALSE; /* TODO: check actual intersection */ + + for (i = 0; i < gradient->n_stops; i++) + if (! CAIRO_COLOR_IS_OPAQUE (&gradient->stops[i].color)) + return FALSE; + + return TRUE; +} + +/** + * _cairo_pattern_is_opaque: + * + * Convenience function to determine whether a pattern is an opaque + * pattern (of any type). The same caveats that apply to + * _cairo_pattern_is_opaque_solid apply here as well. + * + * Return value: %TRUE if the pattern is a opaque. + **/ +cairo_bool_t +_cairo_pattern_is_opaque (const cairo_pattern_t *abstract_pattern, + const cairo_rectangle_int_t *sample) +{ + const cairo_pattern_union_t *pattern; + + if (abstract_pattern->has_component_alpha) + return FALSE; + + pattern = (cairo_pattern_union_t *) abstract_pattern; + switch (pattern->base.type) { + case CAIRO_PATTERN_TYPE_SOLID: + return _cairo_pattern_is_opaque_solid (abstract_pattern); + case CAIRO_PATTERN_TYPE_SURFACE: + return _surface_is_opaque (&pattern->surface, sample); + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + return _raster_source_is_opaque (&pattern->raster_source, sample); + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + return _gradient_is_opaque (&pattern->gradient.base, sample); + case CAIRO_PATTERN_TYPE_MESH: + return FALSE; + } + + ASSERT_NOT_REACHED; + return FALSE; +} + +cairo_bool_t +_cairo_pattern_is_clear (const cairo_pattern_t *abstract_pattern) +{ + const cairo_pattern_union_t *pattern; + + if (abstract_pattern->has_component_alpha) + return FALSE; + + pattern = (cairo_pattern_union_t *) abstract_pattern; + switch (abstract_pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + return CAIRO_COLOR_IS_CLEAR (&pattern->solid.color); + case CAIRO_PATTERN_TYPE_SURFACE: + return _surface_is_clear (&pattern->surface); + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + return _raster_source_is_clear (&pattern->raster_source); + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + return _gradient_is_clear (&pattern->gradient.base, NULL); + case CAIRO_PATTERN_TYPE_MESH: + return _mesh_is_clear (&pattern->mesh); + } + + ASSERT_NOT_REACHED; + return FALSE; +} + +/* + * Will given row of back-translation matrix work with bilinear scale? + * This is true for scales larger than 1. Also it was judged acceptable + * for scales larger than .75. And if there is integer translation + * then a scale of exactly .5 works. + */ +static int +use_bilinear(double x, double y, double t) +{ + /* This is the inverse matrix! */ + double h = x*x + y*y; + if (h < 1.0 / (0.75 * 0.75)) + return TRUE; /* scale > .75 */ + if ((h > 3.99 && h < 4.01) /* scale is 1/2 */ + && !_cairo_fixed_from_double(x*y) /* parallel to an axis */ + && _cairo_fixed_is_integer (_cairo_fixed_from_double (t))) + return TRUE; + return FALSE; +} + +/** + * _cairo_pattern_analyze_filter: + * @pattern: surface pattern + * + * Possibly optimize the filter to a simpler value depending on transformation + * + * Returns: the optimized #cairo_filter_t to use with @pattern. + **/ +cairo_filter_t +_cairo_pattern_analyze_filter (const cairo_pattern_t *pattern) +{ + switch (pattern->filter) { + case CAIRO_FILTER_GOOD: + case CAIRO_FILTER_BEST: + case CAIRO_FILTER_BILINEAR: + case CAIRO_FILTER_FAST: + /* If source pixels map 1:1 onto destination pixels, we do + * not need to filter (and do not want to filter, since it + * will cause blurriness) + */ + if (_cairo_matrix_is_pixel_exact (&pattern->matrix)) { + return CAIRO_FILTER_NEAREST; + } else { + /* Use BILINEAR for any scale greater than .75 instead + * of GOOD. For scales of 1 and larger this is identical, + * for the smaller sizes it was judged that the artifacts + * were not worse than the artifacts from a box filer. + * BILINEAR can also be used if the scale is exactly .5 + * and the translation in that direction is an integer. + */ + if (pattern->filter == CAIRO_FILTER_GOOD && + use_bilinear (pattern->matrix.xx, pattern->matrix.xy, + pattern->matrix.x0) && + use_bilinear (pattern->matrix.yx, pattern->matrix.yy, + pattern->matrix.y0)) + return CAIRO_FILTER_BILINEAR; + } + break; + + case CAIRO_FILTER_NEAREST: + case CAIRO_FILTER_GAUSSIAN: + default: + break; + } + + return pattern->filter; +} + +/** + * _cairo_hypot: + * Returns: value similar to hypot(@x,@y) + * + * May want to replace this with Manhattan distance (abs(x)+abs(y)) if + * hypot is too slow, as there is no need for accuracy here. + **/ +static inline double +_cairo_hypot(double x, double y) +{ + return hypot(x, y); +} + +/** + * _cairo_pattern_sampled_area: + * + * Return region of @pattern that will be sampled to fill @extents, + * based on the transformation and filter. + * + * This does not include pixels that are mulitiplied by values very + * close to zero by the ends of filters. This is so that transforms + * that should be the identity or 90 degree rotations do not expand + * the source unexpectedly. + * + * XXX: We don't actually have any way of querying the backend for + * the filter radius, so we just guess base on what we know that + * backends do currently (see bug #10508) + **/ +void +_cairo_pattern_sampled_area (const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents, + cairo_rectangle_int_t *sample) +{ + double x1, x2, y1, y2; + double padx, pady; + + /* Assume filters are interpolating, which means identity + cannot change the image */ + if (_cairo_matrix_is_identity (&pattern->matrix)) { + *sample = *extents; + return; + } + + /* Transform the centers of the corner pixels */ + x1 = extents->x + 0.5; + y1 = extents->y + 0.5; + x2 = x1 + (extents->width - 1); + y2 = y1 + (extents->height - 1); + _cairo_matrix_transform_bounding_box (&pattern->matrix, + &x1, &y1, &x2, &y2, + NULL); + + /* How far away from center will it actually sample? + * This is the distance from a transformed pixel center to the + * furthest sample of reasonable size. + */ + switch (pattern->filter) { + case CAIRO_FILTER_NEAREST: + case CAIRO_FILTER_FAST: + /* Correct value is zero, but when the sample is on an integer + * it is unknown if the backend will sample the pixel to the + * left or right. This value makes it include both possible pixels. + */ + padx = pady = 0.004; + break; + case CAIRO_FILTER_BILINEAR: + case CAIRO_FILTER_GAUSSIAN: + default: + /* Correct value is .5 */ + padx = pady = 0.495; + break; + case CAIRO_FILTER_GOOD: + /* Correct value is max(width,1)*.5 */ + padx = _cairo_hypot (pattern->matrix.xx, pattern->matrix.xy); + if (padx <= 1.0) padx = 0.495; + else if (padx >= 16.0) padx = 7.92; + else padx *= 0.495; + pady = _cairo_hypot (pattern->matrix.yx, pattern->matrix.yy); + if (pady <= 1.0) pady = 0.495; + else if (pady >= 16.0) pady = 7.92; + else pady *= 0.495; + break; + case CAIRO_FILTER_BEST: + /* Correct value is width*2 */ + padx = _cairo_hypot (pattern->matrix.xx, pattern->matrix.xy) * 1.98; + if (padx > 7.92) padx = 7.92; + pady = _cairo_hypot (pattern->matrix.yx, pattern->matrix.yy) * 1.98; + if (pady > 7.92) pady = 7.92; + break; + } + + /* round furthest samples to edge of pixels */ + x1 = floor (x1 - padx); + if (x1 < CAIRO_RECT_INT_MIN) x1 = CAIRO_RECT_INT_MIN; + sample->x = x1; + + y1 = floor (y1 - pady); + if (y1 < CAIRO_RECT_INT_MIN) y1 = CAIRO_RECT_INT_MIN; + sample->y = y1; + + x2 = floor (x2 + padx) + 1.0; + if (x2 > CAIRO_RECT_INT_MAX) x2 = CAIRO_RECT_INT_MAX; + sample->width = x2 - x1; + + y2 = floor (y2 + pady) + 1.0; + if (y2 > CAIRO_RECT_INT_MAX) y2 = CAIRO_RECT_INT_MAX; + sample->height = y2 - y1; +} + +/** + * _cairo_pattern_get_extents: + * + * Return the "target-space" extents of @pattern in @extents. + * + * For unbounded patterns, the @extents will be initialized with + * "infinite" extents, (minimum and maximum fixed-point values). + * + * When is_vector is TRUE, avoid rounding to zero widths or heights that + * are less than 1 unit. + * + * XXX: Currently, bounded gradient patterns will also return + * "infinite" extents, though it would be possible to optimize these + * with a little more work. + **/ +void +_cairo_pattern_get_extents (const cairo_pattern_t *pattern, + cairo_rectangle_int_t *extents, + cairo_bool_t is_vector) +{ + double x1, y1, x2, y2; + int ix1, ix2, iy1, iy2; + cairo_bool_t round_x = FALSE; + cairo_bool_t round_y = FALSE; + + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + goto UNBOUNDED; + + case CAIRO_PATTERN_TYPE_SURFACE: + { + cairo_rectangle_int_t surface_extents; + const cairo_surface_pattern_t *surface_pattern = + (const cairo_surface_pattern_t *) pattern; + cairo_surface_t *surface = surface_pattern->surface; + + if (! _cairo_surface_get_extents (surface, &surface_extents)) + goto UNBOUNDED; + + if (surface_extents.width == 0 || surface_extents.height == 0) + goto EMPTY; + + if (pattern->extend != CAIRO_EXTEND_NONE) + goto UNBOUNDED; + + x1 = surface_extents.x; + y1 = surface_extents.y; + x2 = surface_extents.x + (int) surface_extents.width; + y2 = surface_extents.y + (int) surface_extents.height; + + goto HANDLE_FILTER; + } + break; + + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + { + const cairo_raster_source_pattern_t *raster = + (const cairo_raster_source_pattern_t *) pattern; + + if (raster->extents.width == 0 || raster->extents.height == 0) + goto EMPTY; + + if (pattern->extend != CAIRO_EXTEND_NONE) + goto UNBOUNDED; + + x1 = raster->extents.x; + y1 = raster->extents.y; + x2 = raster->extents.x + (int) raster->extents.width; + y2 = raster->extents.y + (int) raster->extents.height; + } + HANDLE_FILTER: + switch (pattern->filter) { + case CAIRO_FILTER_NEAREST: + case CAIRO_FILTER_FAST: + round_x = round_y = TRUE; + /* We don't know which way .5 will go, so fudge it slightly. */ + x1 -= 0.004; + y1 -= 0.004; + x2 += 0.004; + y2 += 0.004; + break; + case CAIRO_FILTER_BEST: + /* Assume best filter will produce nice antialiased edges */ + break; + case CAIRO_FILTER_BILINEAR: + case CAIRO_FILTER_GAUSSIAN: + case CAIRO_FILTER_GOOD: + default: + /* These filters can blur the edge out 1/2 pixel when scaling up */ + if (_cairo_hypot (pattern->matrix.xx, pattern->matrix.yx) < 1.0) { + x1 -= 0.5; + x2 += 0.5; + round_x = TRUE; + } + if (_cairo_hypot (pattern->matrix.xy, pattern->matrix.yy) < 1.0) { + y1 -= 0.5; + y2 += 0.5; + round_y = TRUE; + } + break; + } + break; + + case CAIRO_PATTERN_TYPE_RADIAL: + { + const cairo_radial_pattern_t *radial = + (const cairo_radial_pattern_t *) pattern; + double cx1, cy1; + double cx2, cy2; + double r1, r2; + + if (_radial_pattern_is_degenerate (radial)) { + /* cairo-gstate should have optimised degenerate + * patterns to solid clear patterns, so we can ignore + * them here. */ + goto EMPTY; + } + + /* TODO: in some cases (focus outside/on the circle) it is + * half-bounded. */ + if (pattern->extend != CAIRO_EXTEND_NONE) + goto UNBOUNDED; + + cx1 = radial->cd1.center.x; + cy1 = radial->cd1.center.y; + r1 = radial->cd1.radius; + + cx2 = radial->cd2.center.x; + cy2 = radial->cd2.center.y; + r2 = radial->cd2.radius; + + x1 = MIN (cx1 - r1, cx2 - r2); + y1 = MIN (cy1 - r1, cy2 - r2); + x2 = MAX (cx1 + r1, cx2 + r2); + y2 = MAX (cy1 + r1, cy2 + r2); + } + break; + + case CAIRO_PATTERN_TYPE_LINEAR: + { + const cairo_linear_pattern_t *linear = + (const cairo_linear_pattern_t *) pattern; + + if (pattern->extend != CAIRO_EXTEND_NONE) + goto UNBOUNDED; + + if (_linear_pattern_is_degenerate (linear)) { + /* cairo-gstate should have optimised degenerate + * patterns to solid ones, so we can again ignore + * them here. */ + goto EMPTY; + } + + /* TODO: to get tight extents, use the matrix to transform + * the pattern instead of transforming the extents later. */ + if (pattern->matrix.xy != 0. || pattern->matrix.yx != 0.) + goto UNBOUNDED; + + if (linear->pd1.x == linear->pd2.x) { + x1 = -HUGE_VAL; + x2 = HUGE_VAL; + y1 = MIN (linear->pd1.y, linear->pd2.y); + y2 = MAX (linear->pd1.y, linear->pd2.y); + } else if (linear->pd1.y == linear->pd2.y) { + x1 = MIN (linear->pd1.x, linear->pd2.x); + x2 = MAX (linear->pd1.x, linear->pd2.x); + y1 = -HUGE_VAL; + y2 = HUGE_VAL; + } else { + goto UNBOUNDED; + } + + /* The current linear renderer just point-samples in the middle + of the pixels, similar to the NEAREST filter: */ + round_x = round_y = TRUE; + } + break; + + case CAIRO_PATTERN_TYPE_MESH: + { + const cairo_mesh_pattern_t *mesh = + (const cairo_mesh_pattern_t *) pattern; + if (! _cairo_mesh_pattern_coord_box (mesh, &x1, &y1, &x2, &y2)) + goto EMPTY; + } + break; + + default: + ASSERT_NOT_REACHED; + } + + if (_cairo_matrix_is_translation (&pattern->matrix)) { + x1 -= pattern->matrix.x0; x2 -= pattern->matrix.x0; + y1 -= pattern->matrix.y0; y2 -= pattern->matrix.y0; + } else { + cairo_matrix_t imatrix; + cairo_status_t status; + + imatrix = pattern->matrix; + status = cairo_matrix_invert (&imatrix); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_STATUS_SUCCESS); + + _cairo_matrix_transform_bounding_box (&imatrix, + &x1, &y1, &x2, &y2, + NULL); + } + + if (!round_x) { + x1 -= 0.5; + x2 += 0.5; + } + if (x1 < CAIRO_RECT_INT_MIN) + ix1 = CAIRO_RECT_INT_MIN; + else + ix1 = _cairo_lround (x1); + if (x2 > CAIRO_RECT_INT_MAX) + ix2 = CAIRO_RECT_INT_MAX; + else + ix2 = _cairo_lround (x2); + extents->x = ix1; extents->width = ix2 - ix1; + if (is_vector && extents->width == 0 && x1 != x2) + extents->width += 1; + + if (!round_y) { + y1 -= 0.5; + y2 += 0.5; + } + if (y1 < CAIRO_RECT_INT_MIN) + iy1 = CAIRO_RECT_INT_MIN; + else + iy1 = _cairo_lround (y1); + if (y2 > CAIRO_RECT_INT_MAX) + iy2 = CAIRO_RECT_INT_MAX; + else + iy2 = _cairo_lround (y2); + extents->y = iy1; extents->height = iy2 - iy1; + if (is_vector && extents->height == 0 && y1 != y2) + extents->height += 1; + + return; + + UNBOUNDED: + /* unbounded patterns -> 'infinite' extents */ + _cairo_unbounded_rectangle_init (extents); + return; + + EMPTY: + extents->x = extents->y = 0; + extents->width = extents->height = 0; + return; +} + +/** + * _cairo_pattern_get_ink_extents: + * + * Return the "target-space" inked extents of @pattern in @extents. + **/ +cairo_int_status_t +_cairo_pattern_get_ink_extents (const cairo_pattern_t *pattern, + cairo_rectangle_int_t *extents) +{ + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE && + pattern->extend == CAIRO_EXTEND_NONE) + { + const cairo_surface_pattern_t *surface_pattern = + (const cairo_surface_pattern_t *) pattern; + cairo_surface_t *surface = surface_pattern->surface; + + surface = _cairo_surface_get_source (surface, NULL); + if (_cairo_surface_is_recording (surface)) { + cairo_matrix_t imatrix; + cairo_box_t box; + cairo_status_t status; + + imatrix = pattern->matrix; + status = cairo_matrix_invert (&imatrix); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_STATUS_SUCCESS); + + status = _cairo_recording_surface_get_ink_bbox ((cairo_recording_surface_t *)surface, + &box, &imatrix); + if (unlikely (status)) + return status; + + _cairo_box_round_to_rectangle (&box, extents); + return CAIRO_STATUS_SUCCESS; + } + } + + _cairo_pattern_get_extents (pattern, extents, TRUE); + return CAIRO_STATUS_SUCCESS; +} + +static uintptr_t +_cairo_solid_pattern_hash (uintptr_t hash, + const cairo_solid_pattern_t *solid) +{ + hash = _cairo_hash_bytes (hash, &solid->color, sizeof (solid->color)); + + return hash; +} + +static uintptr_t +_cairo_gradient_color_stops_hash (uintptr_t hash, + const cairo_gradient_pattern_t *gradient) +{ + unsigned int n; + + hash = _cairo_hash_bytes (hash, + &gradient->n_stops, + sizeof (gradient->n_stops)); + + for (n = 0; n < gradient->n_stops; n++) { + hash = _cairo_hash_bytes (hash, + &gradient->stops[n].offset, + sizeof (double)); + hash = _cairo_hash_bytes (hash, + &gradient->stops[n].color, + sizeof (cairo_color_stop_t)); + } + + return hash; +} + +uintptr_t +_cairo_linear_pattern_hash (uintptr_t hash, + const cairo_linear_pattern_t *linear) +{ + hash = _cairo_hash_bytes (hash, &linear->pd1, sizeof (linear->pd1)); + hash = _cairo_hash_bytes (hash, &linear->pd2, sizeof (linear->pd2)); + + return _cairo_gradient_color_stops_hash (hash, &linear->base); +} + +uintptr_t +_cairo_radial_pattern_hash (uintptr_t hash, + const cairo_radial_pattern_t *radial) +{ + hash = _cairo_hash_bytes (hash, &radial->cd1.center, sizeof (radial->cd1.center)); + hash = _cairo_hash_bytes (hash, &radial->cd1.radius, sizeof (radial->cd1.radius)); + hash = _cairo_hash_bytes (hash, &radial->cd2.center, sizeof (radial->cd2.center)); + hash = _cairo_hash_bytes (hash, &radial->cd2.radius, sizeof (radial->cd2.radius)); + + return _cairo_gradient_color_stops_hash (hash, &radial->base); +} + +static uintptr_t +_cairo_mesh_pattern_hash (uintptr_t hash, const cairo_mesh_pattern_t *mesh) +{ + const cairo_mesh_patch_t *patch = _cairo_array_index_const (&mesh->patches, 0); + unsigned int i, n = _cairo_array_num_elements (&mesh->patches); + + for (i = 0; i < n; i++) + hash = _cairo_hash_bytes (hash, patch + i, sizeof (cairo_mesh_patch_t)); + + return hash; +} + +static uintptr_t +_cairo_surface_pattern_hash (uintptr_t hash, + const cairo_surface_pattern_t *surface) +{ + hash ^= surface->surface->unique_id; + + return hash; +} + +static uintptr_t +_cairo_raster_source_pattern_hash (uintptr_t hash, + const cairo_raster_source_pattern_t *raster) +{ + hash ^= (uintptr_t)raster->user_data; + + return hash; +} + +uintptr_t +_cairo_pattern_hash (const cairo_pattern_t *pattern) +{ + uintptr_t hash = _CAIRO_HASH_INIT_VALUE; + + if (pattern->status) + return 0; + + hash = _cairo_hash_bytes (hash, &pattern->type, sizeof (pattern->type)); + if (pattern->type != CAIRO_PATTERN_TYPE_SOLID) { + hash = _cairo_hash_bytes (hash, + &pattern->matrix, sizeof (pattern->matrix)); + hash = _cairo_hash_bytes (hash, + &pattern->filter, sizeof (pattern->filter)); + hash = _cairo_hash_bytes (hash, + &pattern->extend, sizeof (pattern->extend)); + hash = _cairo_hash_bytes (hash, + &pattern->has_component_alpha, + sizeof (pattern->has_component_alpha)); + } + + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + return _cairo_solid_pattern_hash (hash, (cairo_solid_pattern_t *) pattern); + case CAIRO_PATTERN_TYPE_LINEAR: + return _cairo_linear_pattern_hash (hash, (cairo_linear_pattern_t *) pattern); + case CAIRO_PATTERN_TYPE_RADIAL: + return _cairo_radial_pattern_hash (hash, (cairo_radial_pattern_t *) pattern); + case CAIRO_PATTERN_TYPE_MESH: + return _cairo_mesh_pattern_hash (hash, (cairo_mesh_pattern_t *) pattern); + case CAIRO_PATTERN_TYPE_SURFACE: + return _cairo_surface_pattern_hash (hash, (cairo_surface_pattern_t *) pattern); + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + return _cairo_raster_source_pattern_hash (hash, (cairo_raster_source_pattern_t *) pattern); + default: + ASSERT_NOT_REACHED; + return FALSE; + } +} + +static cairo_bool_t +_cairo_solid_pattern_equal (const cairo_solid_pattern_t *a, + const cairo_solid_pattern_t *b) +{ + return _cairo_color_equal (&a->color, &b->color); +} + +static cairo_bool_t +_cairo_gradient_color_stops_equal (const cairo_gradient_pattern_t *a, + const cairo_gradient_pattern_t *b) +{ + unsigned int n; + + if (a->n_stops != b->n_stops) + return FALSE; + + for (n = 0; n < a->n_stops; n++) { + if (a->stops[n].offset != b->stops[n].offset) + return FALSE; + if (! _cairo_color_stop_equal (&a->stops[n].color, &b->stops[n].color)) + return FALSE; + } + + return TRUE; +} + +cairo_bool_t +_cairo_linear_pattern_equal (const cairo_linear_pattern_t *a, + const cairo_linear_pattern_t *b) +{ + if (a->pd1.x != b->pd1.x) + return FALSE; + + if (a->pd1.y != b->pd1.y) + return FALSE; + + if (a->pd2.x != b->pd2.x) + return FALSE; + + if (a->pd2.y != b->pd2.y) + return FALSE; + + return _cairo_gradient_color_stops_equal (&a->base, &b->base); +} + +cairo_bool_t +_cairo_radial_pattern_equal (const cairo_radial_pattern_t *a, + const cairo_radial_pattern_t *b) +{ + if (a->cd1.center.x != b->cd1.center.x) + return FALSE; + + if (a->cd1.center.y != b->cd1.center.y) + return FALSE; + + if (a->cd1.radius != b->cd1.radius) + return FALSE; + + if (a->cd2.center.x != b->cd2.center.x) + return FALSE; + + if (a->cd2.center.y != b->cd2.center.y) + return FALSE; + + if (a->cd2.radius != b->cd2.radius) + return FALSE; + + return _cairo_gradient_color_stops_equal (&a->base, &b->base); +} + +static cairo_bool_t +_cairo_mesh_pattern_equal (const cairo_mesh_pattern_t *a, + const cairo_mesh_pattern_t *b) +{ + const cairo_mesh_patch_t *patch_a, *patch_b; + unsigned int i, num_patches_a, num_patches_b; + + num_patches_a = _cairo_array_num_elements (&a->patches); + num_patches_b = _cairo_array_num_elements (&b->patches); + + if (num_patches_a != num_patches_b) + return FALSE; + + for (i = 0; i < num_patches_a; i++) { + patch_a = _cairo_array_index_const (&a->patches, i); + patch_b = _cairo_array_index_const (&b->patches, i); + if (memcmp (patch_a, patch_b, sizeof(cairo_mesh_patch_t)) != 0) + return FALSE; + } + + return TRUE; +} + +static cairo_bool_t +_cairo_surface_pattern_equal (const cairo_surface_pattern_t *a, + const cairo_surface_pattern_t *b) +{ + return a->surface->unique_id == b->surface->unique_id; +} + +static cairo_bool_t +_cairo_raster_source_pattern_equal (const cairo_raster_source_pattern_t *a, + const cairo_raster_source_pattern_t *b) +{ + return a->user_data == b->user_data; +} + +cairo_bool_t +_cairo_pattern_equal (const cairo_pattern_t *a, const cairo_pattern_t *b) +{ + if (a->status || b->status) + return FALSE; + + if (a == b) + return TRUE; + + if (a->type != b->type) + return FALSE; + + if (a->has_component_alpha != b->has_component_alpha) + return FALSE; + + if (a->type != CAIRO_PATTERN_TYPE_SOLID) { + if (memcmp (&a->matrix, &b->matrix, sizeof (cairo_matrix_t))) + return FALSE; + + if (a->filter != b->filter) + return FALSE; + + if (a->extend != b->extend) + return FALSE; + } + + switch (a->type) { + case CAIRO_PATTERN_TYPE_SOLID: + return _cairo_solid_pattern_equal ((cairo_solid_pattern_t *) a, + (cairo_solid_pattern_t *) b); + case CAIRO_PATTERN_TYPE_LINEAR: + return _cairo_linear_pattern_equal ((cairo_linear_pattern_t *) a, + (cairo_linear_pattern_t *) b); + case CAIRO_PATTERN_TYPE_RADIAL: + return _cairo_radial_pattern_equal ((cairo_radial_pattern_t *) a, + (cairo_radial_pattern_t *) b); + case CAIRO_PATTERN_TYPE_MESH: + return _cairo_mesh_pattern_equal ((cairo_mesh_pattern_t *) a, + (cairo_mesh_pattern_t *) b); + case CAIRO_PATTERN_TYPE_SURFACE: + return _cairo_surface_pattern_equal ((cairo_surface_pattern_t *) a, + (cairo_surface_pattern_t *) b); + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + return _cairo_raster_source_pattern_equal ((cairo_raster_source_pattern_t *) a, + (cairo_raster_source_pattern_t *) b); + default: + ASSERT_NOT_REACHED; + return FALSE; + } +} + +/** + * cairo_pattern_get_rgba: + * @pattern: a #cairo_pattern_t + * @red: return value for red component of color, or %NULL + * @green: return value for green component of color, or %NULL + * @blue: return value for blue component of color, or %NULL + * @alpha: return value for alpha component of color, or %NULL + * + * Gets the solid color for a solid color pattern. + * + * Note that the color and alpha values are not premultiplied. + * + * Return value: %CAIRO_STATUS_SUCCESS, or + * %CAIRO_STATUS_PATTERN_TYPE_MISMATCH if the pattern is not a solid + * color pattern. + * + * Since: 1.4 + **/ +cairo_status_t +cairo_pattern_get_rgba (cairo_pattern_t *pattern, + double *red, double *green, + double *blue, double *alpha) +{ + cairo_solid_pattern_t *solid = (cairo_solid_pattern_t*) pattern; + double r0, g0, b0, a0; + + if (pattern->status) + return pattern->status; + + if (pattern->type != CAIRO_PATTERN_TYPE_SOLID) + return _cairo_error (CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + + _cairo_color_get_rgba (&solid->color, &r0, &g0, &b0, &a0); + + if (red) + *red = r0; + if (green) + *green = g0; + if (blue) + *blue = b0; + if (alpha) + *alpha = a0; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_pattern_get_surface: + * @pattern: a #cairo_pattern_t + * @surface: return value for surface of pattern, or %NULL + * + * Gets the surface of a surface pattern. The reference returned in + * @surface is owned by the pattern; the caller should call + * cairo_surface_reference() if the surface is to be retained. + * + * Return value: %CAIRO_STATUS_SUCCESS, or + * %CAIRO_STATUS_PATTERN_TYPE_MISMATCH if the pattern is not a surface + * pattern. + * + * Since: 1.4 + **/ +cairo_status_t +cairo_pattern_get_surface (cairo_pattern_t *pattern, + cairo_surface_t **surface) +{ + cairo_surface_pattern_t *spat = (cairo_surface_pattern_t*) pattern; + + if (pattern->status) + return pattern->status; + + if (pattern->type != CAIRO_PATTERN_TYPE_SURFACE) + return _cairo_error (CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + + if (surface) + *surface = spat->surface; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_pattern_get_color_stop_rgba: + * @pattern: a #cairo_pattern_t + * @index: index of the stop to return data for + * @offset: return value for the offset of the stop, or %NULL + * @red: return value for red component of color, or %NULL + * @green: return value for green component of color, or %NULL + * @blue: return value for blue component of color, or %NULL + * @alpha: return value for alpha component of color, or %NULL + * + * Gets the color and offset information at the given @index for a + * gradient pattern. Values of @index range from 0 to n-1 + * where n is the number returned + * by cairo_pattern_get_color_stop_count(). + * + * Note that the color and alpha values are not premultiplied. + * + * Return value: %CAIRO_STATUS_SUCCESS, or %CAIRO_STATUS_INVALID_INDEX + * if @index is not valid for the given pattern. If the pattern is + * not a gradient pattern, %CAIRO_STATUS_PATTERN_TYPE_MISMATCH is + * returned. + * + * Since: 1.4 + **/ +cairo_status_t +cairo_pattern_get_color_stop_rgba (cairo_pattern_t *pattern, + int index, double *offset, + double *red, double *green, + double *blue, double *alpha) +{ + cairo_gradient_pattern_t *gradient = (cairo_gradient_pattern_t*) pattern; + + if (pattern->status) + return pattern->status; + + if (pattern->type != CAIRO_PATTERN_TYPE_LINEAR && + pattern->type != CAIRO_PATTERN_TYPE_RADIAL) + return _cairo_error (CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + + if (index < 0 || (unsigned int) index >= gradient->n_stops) + return _cairo_error (CAIRO_STATUS_INVALID_INDEX); + + if (offset) + *offset = gradient->stops[index].offset; + if (red) + *red = gradient->stops[index].color.red; + if (green) + *green = gradient->stops[index].color.green; + if (blue) + *blue = gradient->stops[index].color.blue; + if (alpha) + *alpha = gradient->stops[index].color.alpha; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_pattern_get_color_stop_count: + * @pattern: a #cairo_pattern_t + * @count: return value for the number of color stops, or %NULL + * + * Gets the number of color stops specified in the given gradient + * pattern. + * + * Return value: %CAIRO_STATUS_SUCCESS, or + * %CAIRO_STATUS_PATTERN_TYPE_MISMATCH if @pattern is not a gradient + * pattern. + * + * Since: 1.4 + **/ +cairo_status_t +cairo_pattern_get_color_stop_count (cairo_pattern_t *pattern, + int *count) +{ + cairo_gradient_pattern_t *gradient = (cairo_gradient_pattern_t*) pattern; + + if (pattern->status) + return pattern->status; + + if (pattern->type != CAIRO_PATTERN_TYPE_LINEAR && + pattern->type != CAIRO_PATTERN_TYPE_RADIAL) + return _cairo_error (CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + + if (count) + *count = gradient->n_stops; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_pattern_get_linear_points: + * @pattern: a #cairo_pattern_t + * @x0: return value for the x coordinate of the first point, or %NULL + * @y0: return value for the y coordinate of the first point, or %NULL + * @x1: return value for the x coordinate of the second point, or %NULL + * @y1: return value for the y coordinate of the second point, or %NULL + * + * Gets the gradient endpoints for a linear gradient. + * + * Return value: %CAIRO_STATUS_SUCCESS, or + * %CAIRO_STATUS_PATTERN_TYPE_MISMATCH if @pattern is not a linear + * gradient pattern. + * + * Since: 1.4 + **/ +cairo_status_t +cairo_pattern_get_linear_points (cairo_pattern_t *pattern, + double *x0, double *y0, + double *x1, double *y1) +{ + cairo_linear_pattern_t *linear = (cairo_linear_pattern_t*) pattern; + + if (pattern->status) + return pattern->status; + + if (pattern->type != CAIRO_PATTERN_TYPE_LINEAR) + return _cairo_error (CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + + if (x0) + *x0 = linear->pd1.x; + if (y0) + *y0 = linear->pd1.y; + if (x1) + *x1 = linear->pd2.x; + if (y1) + *y1 = linear->pd2.y; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_pattern_get_radial_circles: + * @pattern: a #cairo_pattern_t + * @x0: return value for the x coordinate of the center of the first circle, or %NULL + * @y0: return value for the y coordinate of the center of the first circle, or %NULL + * @r0: return value for the radius of the first circle, or %NULL + * @x1: return value for the x coordinate of the center of the second circle, or %NULL + * @y1: return value for the y coordinate of the center of the second circle, or %NULL + * @r1: return value for the radius of the second circle, or %NULL + * + * Gets the gradient endpoint circles for a radial gradient, each + * specified as a center coordinate and a radius. + * + * Return value: %CAIRO_STATUS_SUCCESS, or + * %CAIRO_STATUS_PATTERN_TYPE_MISMATCH if @pattern is not a radial + * gradient pattern. + * + * Since: 1.4 + **/ +cairo_status_t +cairo_pattern_get_radial_circles (cairo_pattern_t *pattern, + double *x0, double *y0, double *r0, + double *x1, double *y1, double *r1) +{ + cairo_radial_pattern_t *radial = (cairo_radial_pattern_t*) pattern; + + if (pattern->status) + return pattern->status; + + if (pattern->type != CAIRO_PATTERN_TYPE_RADIAL) + return _cairo_error (CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + + if (x0) + *x0 = radial->cd1.center.x; + if (y0) + *y0 = radial->cd1.center.y; + if (r0) + *r0 = radial->cd1.radius; + if (x1) + *x1 = radial->cd2.center.x; + if (y1) + *y1 = radial->cd2.center.y; + if (r1) + *r1 = radial->cd2.radius; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_mesh_pattern_get_patch_count: + * @pattern: a #cairo_pattern_t + * @count: return value for the number patches, or %NULL + * + * Gets the number of patches specified in the given mesh pattern. + * + * The number only includes patches which have been finished by + * calling cairo_mesh_pattern_end_patch(). For example it will be 0 + * during the definition of the first patch. + * + * Return value: %CAIRO_STATUS_SUCCESS, or + * %CAIRO_STATUS_PATTERN_TYPE_MISMATCH if @pattern is not a mesh + * pattern. + * + * Since: 1.12 + **/ +cairo_status_t +cairo_mesh_pattern_get_patch_count (cairo_pattern_t *pattern, + unsigned int *count) +{ + cairo_mesh_pattern_t *mesh = (cairo_mesh_pattern_t *) pattern; + + if (unlikely (pattern->status)) + return pattern->status; + + if (unlikely (pattern->type != CAIRO_PATTERN_TYPE_MESH)) + return _cairo_error (CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + + if (count) { + *count = _cairo_array_num_elements (&mesh->patches); + if (mesh->current_patch) + *count -= 1; + } + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_mesh_pattern_get_path: + * @pattern: a #cairo_pattern_t + * @patch_num: the patch number to return data for + * + * Gets path defining the patch @patch_num for a mesh + * pattern. + * + * @patch_num can range from 0 to n-1 where n is the number returned by + * cairo_mesh_pattern_get_patch_count(). + * + * Return value: the path defining the patch, or a path with status + * %CAIRO_STATUS_INVALID_INDEX if @patch_num or @point_num is not + * valid for @pattern. If @pattern is not a mesh pattern, a path with + * status %CAIRO_STATUS_PATTERN_TYPE_MISMATCH is returned. + * + * Since: 1.12 + **/ +cairo_path_t * +cairo_mesh_pattern_get_path (cairo_pattern_t *pattern, + unsigned int patch_num) +{ + cairo_mesh_pattern_t *mesh = (cairo_mesh_pattern_t *) pattern; + const cairo_mesh_patch_t *patch; + cairo_path_t *path; + cairo_path_data_t *data; + unsigned int patch_count; + int l, current_point; + + if (unlikely (pattern->status)) + return _cairo_path_create_in_error (pattern->status); + + if (unlikely (pattern->type != CAIRO_PATTERN_TYPE_MESH)) + return _cairo_path_create_in_error (_cairo_error (CAIRO_STATUS_PATTERN_TYPE_MISMATCH)); + + patch_count = _cairo_array_num_elements (&mesh->patches); + if (mesh->current_patch) + patch_count--; + + if (unlikely (patch_num >= patch_count)) + return _cairo_path_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_INDEX)); + + patch = _cairo_array_index_const (&mesh->patches, patch_num); + + path = _cairo_calloc (sizeof (cairo_path_t)); + if (path == NULL) + return _cairo_path_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + path->num_data = 18; + path->data = _cairo_calloc_ab (path->num_data, + sizeof (cairo_path_data_t)); + if (path->data == NULL) { + free (path); + return _cairo_path_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + data = path->data; + data[0].header.type = CAIRO_PATH_MOVE_TO; + data[0].header.length = 2; + data[1].point.x = patch->points[0][0].x; + data[1].point.y = patch->points[0][0].y; + data += data[0].header.length; + + current_point = 0; + + for (l = 0; l < 4; l++) { + int i, j, k; + + data[0].header.type = CAIRO_PATH_CURVE_TO; + data[0].header.length = 4; + + for (k = 1; k < 4; k++) { + current_point = (current_point + 1) % 12; + i = mesh_path_point_i[current_point]; + j = mesh_path_point_j[current_point]; + data[k].point.x = patch->points[i][j].x; + data[k].point.y = patch->points[i][j].y; + } + + data += data[0].header.length; + } + + path->status = CAIRO_STATUS_SUCCESS; + + return path; +} + +/** + * cairo_mesh_pattern_get_corner_color_rgba: + * @pattern: a #cairo_pattern_t + * @patch_num: the patch number to return data for + * @corner_num: the corner number to return data for + * @red: return value for red component of color, or %NULL + * @green: return value for green component of color, or %NULL + * @blue: return value for blue component of color, or %NULL + * @alpha: return value for alpha component of color, or %NULL + * + * Gets the color information in corner @corner_num of patch + * @patch_num for a mesh pattern. + * + * @patch_num can range from 0 to n-1 where n is the number returned by + * cairo_mesh_pattern_get_patch_count(). + * + * Valid values for @corner_num are from 0 to 3 and identify the + * corners as explained in cairo_pattern_create_mesh(). + * + * Note that the color and alpha values are not premultiplied. + * + * Return value: %CAIRO_STATUS_SUCCESS, or %CAIRO_STATUS_INVALID_INDEX + * if @patch_num or @corner_num is not valid for @pattern. If + * @pattern is not a mesh pattern, %CAIRO_STATUS_PATTERN_TYPE_MISMATCH + * is returned. + * + * Since: 1.12 + **/ +cairo_status_t +cairo_mesh_pattern_get_corner_color_rgba (cairo_pattern_t *pattern, + unsigned int patch_num, + unsigned int corner_num, + double *red, double *green, + double *blue, double *alpha) +{ + cairo_mesh_pattern_t *mesh = (cairo_mesh_pattern_t *) pattern; + unsigned int patch_count; + const cairo_mesh_patch_t *patch; + + if (unlikely (pattern->status)) + return pattern->status; + + if (unlikely (pattern->type != CAIRO_PATTERN_TYPE_MESH)) + return _cairo_error (CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + + if (unlikely (corner_num > 3)) + return _cairo_error (CAIRO_STATUS_INVALID_INDEX); + + patch_count = _cairo_array_num_elements (&mesh->patches); + if (mesh->current_patch) + patch_count--; + + if (unlikely (patch_num >= patch_count)) + return _cairo_error (CAIRO_STATUS_INVALID_INDEX); + + patch = _cairo_array_index_const (&mesh->patches, patch_num); + + if (red) + *red = patch->colors[corner_num].red; + if (green) + *green = patch->colors[corner_num].green; + if (blue) + *blue = patch->colors[corner_num].blue; + if (alpha) + *alpha = patch->colors[corner_num].alpha; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_mesh_pattern_get_control_point: + * @pattern: a #cairo_pattern_t + * @patch_num: the patch number to return data for + * @point_num: the control point number to return data for + * @x: return value for the x coordinate of the control point, or %NULL + * @y: return value for the y coordinate of the control point, or %NULL + * + * Gets the control point @point_num of patch @patch_num for a mesh + * pattern. + * + * @patch_num can range from 0 to n-1 where n is the number returned by + * cairo_mesh_pattern_get_patch_count(). + * + * Valid values for @point_num are from 0 to 3 and identify the + * control points as explained in cairo_pattern_create_mesh(). + * + * Return value: %CAIRO_STATUS_SUCCESS, or %CAIRO_STATUS_INVALID_INDEX + * if @patch_num or @point_num is not valid for @pattern. If @pattern + * is not a mesh pattern, %CAIRO_STATUS_PATTERN_TYPE_MISMATCH is + * returned. + * + * Since: 1.12 + **/ +cairo_status_t +cairo_mesh_pattern_get_control_point (cairo_pattern_t *pattern, + unsigned int patch_num, + unsigned int point_num, + double *x, double *y) +{ + cairo_mesh_pattern_t *mesh = (cairo_mesh_pattern_t *) pattern; + const cairo_mesh_patch_t *patch; + unsigned int patch_count; + int i, j; + + if (pattern->status) + return pattern->status; + + if (pattern->type != CAIRO_PATTERN_TYPE_MESH) + return _cairo_error (CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + + if (point_num > 3) + return _cairo_error (CAIRO_STATUS_INVALID_INDEX); + + patch_count = _cairo_array_num_elements (&mesh->patches); + if (mesh->current_patch) + patch_count--; + + if (unlikely (patch_num >= patch_count)) + return _cairo_error (CAIRO_STATUS_INVALID_INDEX); + + patch = _cairo_array_index_const (&mesh->patches, patch_num); + + i = mesh_control_point_i[point_num]; + j = mesh_control_point_j[point_num]; + + if (x) + *x = patch->points[i][j].x; + if (y) + *y = patch->points[i][j].y; + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_pattern_reset_static_data (void) +{ + int i; + + for (i = 0; i < ARRAY_LENGTH (freed_pattern_pool); i++) + _freed_pool_reset (&freed_pattern_pool[i]); +} + +static void +_cairo_debug_print_surface_pattern (FILE *file, + const cairo_surface_pattern_t *pattern) +{ + const char *s; + switch (pattern->surface->type) { + case CAIRO_SURFACE_TYPE_IMAGE: s = "image"; break; + case CAIRO_SURFACE_TYPE_PDF: s = "pdf"; break; + case CAIRO_SURFACE_TYPE_PS: s = "ps"; break; + case CAIRO_SURFACE_TYPE_XLIB: s = "xlib"; break; + case CAIRO_SURFACE_TYPE_XCB: s = "xcb"; break; + case CAIRO_SURFACE_TYPE_GLITZ: s = "glitz"; break; + case CAIRO_SURFACE_TYPE_QUARTZ: s = "quartz"; break; + case CAIRO_SURFACE_TYPE_WIN32: s = "win32"; break; + case CAIRO_SURFACE_TYPE_BEOS: s = "beos"; break; + case CAIRO_SURFACE_TYPE_DIRECTFB: s = "directfb"; break; + case CAIRO_SURFACE_TYPE_SVG: s = "svg"; break; + case CAIRO_SURFACE_TYPE_OS2: s = "os2"; break; + case CAIRO_SURFACE_TYPE_WIN32_PRINTING: s = "win32_printing"; break; + case CAIRO_SURFACE_TYPE_QUARTZ_IMAGE: s = "quartz_image"; break; + case CAIRO_SURFACE_TYPE_SCRIPT: s = "script"; break; + case CAIRO_SURFACE_TYPE_QT: s = "qt"; break; + case CAIRO_SURFACE_TYPE_RECORDING: s = "recording"; break; + case CAIRO_SURFACE_TYPE_VG: s = "vg"; break; + case CAIRO_SURFACE_TYPE_GL: s = "gl"; break; + case CAIRO_SURFACE_TYPE_DRM: s = "drm"; break; + case CAIRO_SURFACE_TYPE_TEE: s = "tee"; break; + case CAIRO_SURFACE_TYPE_XML: s = "xml"; break; + case CAIRO_SURFACE_TYPE_SKIA: s = "skia"; break; /* Deprecated */ + case CAIRO_SURFACE_TYPE_SUBSURFACE: s = "subsurface"; break; + case CAIRO_SURFACE_TYPE_COGL: s = "cogl"; break; + default: s = "invalid"; ASSERT_NOT_REACHED; break; + } + fprintf (file, " surface type: %s\n", s); +} + +static void +_cairo_debug_print_raster_source_pattern (FILE *file, + const cairo_raster_source_pattern_t *raster) +{ + fprintf (file, " content: %x, size %dx%d\n", raster->content, raster->extents.width, raster->extents.height); +} + +static void +_cairo_debug_print_linear_pattern (FILE *file, + const cairo_linear_pattern_t *pattern) +{ +} + +static void +_cairo_debug_print_radial_pattern (FILE *file, + const cairo_radial_pattern_t *pattern) +{ +} + +static void +_cairo_debug_print_mesh_pattern (FILE *file, + const cairo_mesh_pattern_t *pattern) +{ +} + +void +_cairo_debug_print_pattern (FILE *file, const cairo_pattern_t *pattern) +{ + const char *s; + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: s = "solid"; break; + case CAIRO_PATTERN_TYPE_SURFACE: s = "surface"; break; + case CAIRO_PATTERN_TYPE_LINEAR: s = "linear"; break; + case CAIRO_PATTERN_TYPE_RADIAL: s = "radial"; break; + case CAIRO_PATTERN_TYPE_MESH: s = "mesh"; break; + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: s = "raster"; break; + default: s = "invalid"; ASSERT_NOT_REACHED; break; + } + + fprintf (file, "pattern: %s\n", s); + if (pattern->type == CAIRO_PATTERN_TYPE_SOLID) + return; + + switch (pattern->extend) { + case CAIRO_EXTEND_NONE: s = "none"; break; + case CAIRO_EXTEND_REPEAT: s = "repeat"; break; + case CAIRO_EXTEND_REFLECT: s = "reflect"; break; + case CAIRO_EXTEND_PAD: s = "pad"; break; + default: s = "invalid"; ASSERT_NOT_REACHED; break; + } + fprintf (file, " extend: %s\n", s); + + switch (pattern->filter) { + case CAIRO_FILTER_FAST: s = "fast"; break; + case CAIRO_FILTER_GOOD: s = "good"; break; + case CAIRO_FILTER_BEST: s = "best"; break; + case CAIRO_FILTER_NEAREST: s = "nearest"; break; + case CAIRO_FILTER_BILINEAR: s = "bilinear"; break; + case CAIRO_FILTER_GAUSSIAN: s = "gaussian"; break; + default: s = "invalid"; ASSERT_NOT_REACHED; break; + } + fprintf (file, " filter: %s\n", s); + fprintf (file, " matrix: [%g %g %g %g %g %g]\n", + pattern->matrix.xx, pattern->matrix.yx, + pattern->matrix.xy, pattern->matrix.yy, + pattern->matrix.x0, pattern->matrix.y0); + switch (pattern->type) { + default: + case CAIRO_PATTERN_TYPE_SOLID: + break; + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + _cairo_debug_print_raster_source_pattern (file, (cairo_raster_source_pattern_t *)pattern); + break; + case CAIRO_PATTERN_TYPE_SURFACE: + _cairo_debug_print_surface_pattern (file, (cairo_surface_pattern_t *)pattern); + break; + case CAIRO_PATTERN_TYPE_LINEAR: + _cairo_debug_print_linear_pattern (file, (cairo_linear_pattern_t *)pattern); + break; + case CAIRO_PATTERN_TYPE_RADIAL: + _cairo_debug_print_radial_pattern (file, (cairo_radial_pattern_t *)pattern); + break; + case CAIRO_PATTERN_TYPE_MESH: + _cairo_debug_print_mesh_pattern (file, (cairo_mesh_pattern_t *)pattern); + break; + } +} diff --git a/local/recipes/libs/cairo/source/src/cairo-pdf-interchange.c b/local/recipes/libs/cairo/source/src/cairo-pdf-interchange.c new file mode 100644 index 0000000000..720ce0d532 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-pdf-interchange.c @@ -0,0 +1,2965 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2016 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Adrian Johnson. + * + * Contributor(s): + * Adrian Johnson + */ + + +/* PDF Document Interchange features: + * - metadata + * - document outline + * - tagged pdf + * - hyperlinks + * - page labels + */ + +#define _DEFAULT_SOURCE /* for localtime_r(), gmtime_r(), snprintf(), strdup() */ +#include "cairoint.h" + +#include "cairo-pdf.h" +#include "cairo-pdf-surface-private.h" + +#include "cairo-array-private.h" +#include "cairo-error-private.h" +#include "cairo-output-stream-private.h" +#include "cairo-recording-surface-inline.h" +#include "cairo-recording-surface-private.h" +#include "cairo-surface-snapshot-inline.h" + +#include + +#ifndef HAVE_LOCALTIME_R +#define localtime_r(T, BUF) (*(BUF) = *localtime (T)) +#endif +#ifndef HAVE_GMTIME_R +#define gmtime_r(T, BUF) (*(BUF) = *gmtime (T)) +#endif + +/* #define DEBUG_PDF_INTERCHANGE 1 */ + +#if DEBUG_PDF_INTERCHANGE +static void +print_tree (cairo_pdf_surface_t *surface, cairo_pdf_struct_tree_node_t *node); + +static void +print_command (cairo_pdf_command_t *command, int indent); + +static void +print_command_list(cairo_pdf_command_list_t *command_list); +#endif + +static void +_cairo_pdf_command_init_key (cairo_pdf_command_entry_t *key) +{ + key->base.hash = _cairo_hash_uintptr (_CAIRO_HASH_INIT_VALUE, (uintptr_t)key->recording_id); + key->base.hash = _cairo_hash_uintptr (key->base.hash, (uintptr_t)key->command_id); +} + +static cairo_bool_t +_cairo_pdf_command_equal (const void *key_a, const void *key_b) +{ + const cairo_pdf_command_entry_t *a = key_a; + const cairo_pdf_command_entry_t *b = key_b; + + return a->recording_id == b->recording_id && a->command_id == b->command_id; +} + +static void +_cairo_pdf_command_pluck (void *entry, void *closure) +{ + cairo_pdf_command_entry_t *dest = entry; + cairo_hash_table_t *table = closure; + + _cairo_hash_table_remove (table, &dest->base); + free (dest); +} + +static cairo_pdf_struct_tree_node_t * +lookup_node_for_command (cairo_pdf_surface_t *surface, + unsigned int recording_id, + unsigned int command_id) +{ + cairo_pdf_command_entry_t entry_key; + cairo_pdf_command_entry_t *entry; + cairo_pdf_interchange_t *ic = &surface->interchange; + + entry_key.recording_id = recording_id; + entry_key.command_id = command_id; + _cairo_pdf_command_init_key (&entry_key); + entry = _cairo_hash_table_lookup (ic->command_to_node_map, &entry_key.base); + assert (entry != NULL); + return entry->node; +} + +static cairo_int_status_t +command_list_add (cairo_pdf_surface_t *surface, + unsigned int command_id, + cairo_pdf_operation_t flags) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_pdf_command_t command; + cairo_int_status_t status; + + unsigned num_elements = _cairo_array_num_elements (&ic->current_commands->commands); + if (command_id > num_elements) { + void *elements; + unsigned additional_elements = command_id - num_elements; + status = _cairo_array_allocate (&ic->current_commands->commands, additional_elements, &elements); + if (unlikely (status)) + return status; + memset (elements, 0, additional_elements * sizeof(cairo_pdf_command_t)); + } + + command.group = NULL; + command.node = NULL; + command.command_id = command_id; + command.mcid_index = 0; + command.flags = flags; + return _cairo_array_append (&ic->current_commands->commands, &command); +} + +static cairo_int_status_t +command_list_push_group (cairo_pdf_surface_t *surface, + unsigned int command_id, + cairo_surface_t *recording_surface, + unsigned int region_id) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_pdf_command_t *command; + cairo_pdf_command_list_t *group; + cairo_pdf_recording_surface_commands_t recording_commands; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + + group = _cairo_calloc (sizeof(cairo_pdf_command_list_t)); + _cairo_array_init (&group->commands, sizeof(cairo_pdf_command_t)); + group->parent = ic->current_commands; + + command_list_add (surface, command_id, PDF_GROUP); + command = _cairo_array_index (&ic->current_commands->commands, command_id); + command->group = group; + ic->current_commands = group; + + recording_commands.recording_surface = recording_surface; + recording_commands.command_list = group; + recording_commands.region_id = region_id; + status = _cairo_array_append (&ic->recording_surface_commands, &recording_commands); + + return status; +} + +static void +command_list_pop_group (cairo_pdf_surface_t *surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + + ic->current_commands = ic->current_commands->parent; +} + +static cairo_bool_t +command_list_is_group (cairo_pdf_surface_t *surface, + unsigned int command_id) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_pdf_command_t *command; + unsigned num_elements = _cairo_array_num_elements (&ic->current_commands->commands); + + if (command_id >= num_elements) + return FALSE; + + command = _cairo_array_index (&ic->current_commands->commands, command_id); + return command->flags == PDF_GROUP; +} + + +/* Is there any content between current command and next + * begin/end/group? */ +static cairo_bool_t +command_list_has_content (cairo_pdf_surface_t *surface, + unsigned int command_id, + unsigned int *content_command_id) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_pdf_command_t *command; + unsigned i; + unsigned num_elements = _cairo_array_num_elements (&ic->current_commands->commands); + + for (i = command_id + 1; i < num_elements; i++) { + command = _cairo_array_index (&ic->current_commands->commands, i); + switch (command->flags) { + case PDF_CONTENT: + if (content_command_id) + *content_command_id = i; + return TRUE; + break; + case PDF_BEGIN: + case PDF_END: + case PDF_GROUP: + return FALSE; + case PDF_NONE: + break; + } + } + return FALSE; +} + +static void +command_list_set_mcid (cairo_pdf_surface_t *surface, + unsigned int command_id, + cairo_pdf_struct_tree_node_t *node, + int mcid_index) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_pdf_command_t *command; + + command = _cairo_array_index (&ic->current_commands->commands, command_id); + command->node = node; + command->mcid_index = mcid_index; +} + +static void +command_list_set_current_recording_commands (cairo_pdf_surface_t *surface, + cairo_surface_t *recording_surface, + unsigned int region_id) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + unsigned i; + cairo_pdf_recording_surface_commands_t *commands; + unsigned num_elements = _cairo_array_num_elements (&ic->recording_surface_commands); + + for (i = 0; i < num_elements; i++) { + commands = _cairo_array_index (&ic->recording_surface_commands, i); + if (commands->region_id == region_id) { + ic->current_commands = commands->command_list; + return; + } + } + ASSERT_NOT_REACHED; /* recording_surface not found */ +} + +static void +update_mcid_order (cairo_pdf_surface_t *surface, + cairo_pdf_command_list_t *command_list) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_pdf_command_t *command; + cairo_pdf_page_mcid_t *mcid_elem; + unsigned i; + unsigned num_elements = _cairo_array_num_elements (&command_list->commands); + + for (i = 0; i < num_elements; i++) { + command = _cairo_array_index (&command_list->commands, i); + if (command->node) { + mcid_elem = _cairo_array_index (&command->node->mcid, command->mcid_index); + mcid_elem->order = ic->mcid_order++; + } + + if (command->group) + update_mcid_order (surface, command->group); + } +} + +static void +_cairo_pdf_content_tag_init_key (cairo_pdf_content_tag_t *key) +{ + key->base.hash = _cairo_hash_string (key->node->attributes.content.id); +} + +static cairo_bool_t +_cairo_pdf_content_tag_equal (const void *key_a, const void *key_b) +{ + const cairo_pdf_content_tag_t *a = key_a; + const cairo_pdf_content_tag_t *b = key_b; + + return strcmp (a->node->attributes.content.id, b->node->attributes.content.id) == 0; +} + +static void +_cairo_pdf_content_tag_pluck (void *entry, void *closure) +{ + cairo_pdf_content_tag_t *content_tag = entry; + cairo_hash_table_t *table = closure; + + _cairo_hash_table_remove (table, &content_tag->base); + free (content_tag); +} + +static cairo_status_t +lookup_content_node_for_ref_node (cairo_pdf_surface_t *surface, + cairo_pdf_struct_tree_node_t *ref_node, + cairo_pdf_struct_tree_node_t **node) +{ + cairo_pdf_content_tag_t entry_key; + cairo_pdf_content_tag_t *entry; + cairo_pdf_interchange_t *ic = &surface->interchange; + + entry_key.node = ref_node; + _cairo_pdf_content_tag_init_key (&entry_key); + entry = _cairo_hash_table_lookup (ic->content_tag_map, &entry_key.base); + if (!entry) { + return _cairo_tag_error ("CONTENT_REF ref='%s' not found", + ref_node->attributes.content_ref.ref); + } + + *node = entry->node; + return CAIRO_STATUS_SUCCESS; +} + +static void +write_rect_to_pdf_quad_points (cairo_output_stream_t *stream, + const cairo_rectangle_t *rect, + double surface_height) +{ + _cairo_output_stream_printf (stream, + "%f %f %f %f %f %f %f %f", + rect->x, + surface_height - rect->y, + rect->x + rect->width, + surface_height - rect->y, + rect->x + rect->width, + surface_height - (rect->y + rect->height), + rect->x, + surface_height - (rect->y + rect->height)); +} + +static void +write_rect_int_to_pdf_bbox (cairo_output_stream_t *stream, + const cairo_rectangle_int_t *rect, + double surface_height) +{ + _cairo_output_stream_printf (stream, + "%d %f %d %f", + rect->x, + surface_height - (rect->y + rect->height), + rect->x + rect->width, + surface_height - rect->y); +} + +static cairo_int_status_t +add_tree_node (cairo_pdf_surface_t *surface, + cairo_pdf_struct_tree_node_t *parent, + const char *name, + const char *attributes, + cairo_pdf_struct_tree_node_t **new_node) +{ + cairo_pdf_struct_tree_node_t *node; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + + node = _cairo_calloc (sizeof(cairo_pdf_struct_tree_node_t)); + if (unlikely (node == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + node->name = strdup (name); + node->res = _cairo_pdf_surface_new_object (surface); + if (node->res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + node->parent = parent; + cairo_list_init (&node->children); + _cairo_array_init (&node->mcid, sizeof (cairo_pdf_page_mcid_t)); + node->annot = NULL; + node->extents.valid = FALSE; + + cairo_list_add_tail (&node->link, &parent->children); + + if (strcmp (node->name, CAIRO_TAG_CONTENT) == 0) { + node->type = PDF_NODE_CONTENT; + status = _cairo_tag_parse_content_attributes (attributes, &node->attributes.content); + } else if (strcmp (node->name, CAIRO_TAG_CONTENT_REF) == 0) { + node->type = PDF_NODE_CONTENT_REF; + status = _cairo_tag_parse_content_ref_attributes (attributes, &node->attributes.content_ref); + } else if (strcmp (node->name, "Artifact") == 0) { + node->type = PDF_NODE_ARTIFACT; + } else { + node->type = PDF_NODE_STRUCT; + } + + *new_node = node; + return status; +} + +static void +free_node (cairo_pdf_struct_tree_node_t *node) +{ + cairo_pdf_struct_tree_node_t *child, *next; + + if (!node) + return; + + cairo_list_foreach_entry_safe (child, next, cairo_pdf_struct_tree_node_t, + &node->children, + link) + { + cairo_list_del (&child->link); + free_node (child); + } + free (node->name); + _cairo_array_fini (&node->mcid); + if (node->type == PDF_NODE_CONTENT) + _cairo_tag_free_content_attributes (&node->attributes.content); + + if (node->type == PDF_NODE_CONTENT_REF) + _cairo_tag_free_content_ref_attributes (&node->attributes.content_ref); + + free (node); +} + +static cairo_status_t +add_mcid_to_node (cairo_pdf_surface_t *surface, + cairo_pdf_struct_tree_node_t *node, + unsigned int command_id, + int *mcid) +{ + cairo_pdf_page_mcid_t mcid_elem; + cairo_int_status_t status; + cairo_pdf_interchange_t *ic = &surface->interchange; + + status = _cairo_array_append (&ic->mcid_to_tree, &node); + if (unlikely (status)) + return status; + + mcid_elem.order = -1; + mcid_elem.page = _cairo_array_num_elements (&surface->pages); + mcid_elem.xobject_res = ic->current_recording_surface_res; + mcid_elem.mcid = _cairo_array_num_elements (&ic->mcid_to_tree) - 1; + mcid_elem.child_node = NULL; + command_list_set_mcid (surface, command_id, node, _cairo_array_num_elements (&node->mcid)); + *mcid = mcid_elem.mcid; + return _cairo_array_append (&node->mcid, &mcid_elem); +} + +static cairo_status_t +add_child_to_mcid_array (cairo_pdf_surface_t *surface, + cairo_pdf_struct_tree_node_t *node, + unsigned int command_id, + cairo_pdf_struct_tree_node_t *child) +{ + cairo_pdf_page_mcid_t mcid_elem; + + mcid_elem.order = -1; + mcid_elem.page = 0; + mcid_elem.xobject_res.id = 0; + mcid_elem.mcid = 0; + mcid_elem.child_node = child; + command_list_set_mcid (surface, command_id, node, _cairo_array_num_elements (&node->mcid)); + return _cairo_array_append (&node->mcid, &mcid_elem); +} + +static cairo_int_status_t +add_annotation (cairo_pdf_surface_t *surface, + cairo_pdf_struct_tree_node_t *node, + const char *name, + const char *attributes) +{ + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_pdf_annotation_t *annot; + + annot = _cairo_calloc (sizeof (cairo_pdf_annotation_t)); + if (unlikely (annot == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_tag_parse_link_attributes (attributes, &annot->link_attrs); + if (unlikely (status)) { + free (annot); + return status; + } + + if (annot->link_attrs.link_page == 0) + annot->link_attrs.link_page = _cairo_array_num_elements (&surface->pages); + + annot->node = node; + + annot->res = _cairo_pdf_surface_new_object (surface); + if (annot->res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + node->annot = annot; + status = _cairo_array_append (&ic->annots, &annot); + + return status; +} + +static void +free_annotation (cairo_pdf_annotation_t *annot) +{ + _cairo_tag_free_link_attributes (&annot->link_attrs); + free (annot); +} + +static void +cairo_pdf_interchange_clear_annotations (cairo_pdf_surface_t *surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + int num_elems, i; + + num_elems = _cairo_array_num_elements (&ic->annots); + for (i = 0; i < num_elems; i++) { + cairo_pdf_annotation_t * annot; + + _cairo_array_copy_element (&ic->annots, i, &annot); + free_annotation (annot); + } + _cairo_array_truncate (&ic->annots, 0); +} + +static void +cairo_pdf_interchange_write_node_mcid (cairo_pdf_surface_t *surface, + cairo_pdf_page_mcid_t *mcid_elem, + int page) +{ + cairo_pdf_page_info_t *page_info; + + page_info = _cairo_array_index (&surface->pages, mcid_elem->page - 1); + if (mcid_elem->page == page && mcid_elem->xobject_res.id == 0) { + _cairo_output_stream_printf (surface->object_stream.stream, "%d ", mcid_elem->mcid); + } else { + _cairo_output_stream_printf (surface->object_stream.stream, + "\n << /Type /MCR "); + if (mcid_elem->page != page) { + _cairo_output_stream_printf (surface->object_stream.stream, + "/Pg %d 0 R ", + page_info->page_res.id); + } + if (mcid_elem->xobject_res.id != 0) { + _cairo_output_stream_printf (surface->object_stream.stream, + "/Stm %d 0 R ", + mcid_elem->xobject_res.id); + } + _cairo_output_stream_printf (surface->object_stream.stream, + "/MCID %d >> ", + mcid_elem->mcid); + } +} + +static int +_mcid_order_compare (const void *a, + const void *b) +{ + const cairo_pdf_page_mcid_t *mcid_a = a; + const cairo_pdf_page_mcid_t *mcid_b = b; + + if (mcid_a->order < mcid_b->order) + return -1; + else if (mcid_a->order > mcid_b->order) + return 1; + else + return 0; +} + +static cairo_int_status_t +cairo_pdf_interchange_write_node_object (cairo_pdf_surface_t *surface, + cairo_pdf_struct_tree_node_t *node, + int depth) +{ + cairo_pdf_page_mcid_t *mcid_elem, *child_mcid_elem; + unsigned i, j, num_mcid; + int first_page = 0; + cairo_pdf_page_info_t *page_info; + cairo_int_status_t status; + cairo_bool_t has_children = FALSE; + + /* The Root node is written in cairo_pdf_interchange_write_struct_tree(). */ + if (!node->parent) + return CAIRO_STATUS_SUCCESS; + + if (node->type == PDF_NODE_CONTENT || + node->type == PDF_NODE_CONTENT_REF || + node->type == PDF_NODE_ARTIFACT) + { + return CAIRO_STATUS_SUCCESS; + } + + status = _cairo_pdf_surface_object_begin (surface, node->res); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Type /StructElem\n" + " /S /%s\n" + " /P %d 0 R\n", + node->name, + node->parent->res.id); + + /* Write /K entry (children of this StructElem) */ + num_mcid = _cairo_array_num_elements (&node->mcid); + if (num_mcid > 0 ) { + _cairo_array_sort (&node->mcid, _mcid_order_compare); + /* Find the first MCID element and use the page number to set /Pg */ + for (i = 0; i < num_mcid; i++) { + mcid_elem = _cairo_array_index (&node->mcid, i); + assert (mcid_elem->order != -1); + if (mcid_elem->child_node) { + if (mcid_elem->child_node->type == PDF_NODE_CONTENT_REF) { + cairo_pdf_struct_tree_node_t *content_node; + status = lookup_content_node_for_ref_node (surface, mcid_elem->child_node, &content_node); + if (status) + return status; + + /* CONTENT_REF will not have child nodes */ + if (_cairo_array_num_elements (&content_node->mcid) > 0) { + child_mcid_elem = _cairo_array_index (&content_node->mcid, 0); + first_page = child_mcid_elem->page; + page_info = _cairo_array_index (&surface->pages, first_page - 1); + _cairo_output_stream_printf (surface->object_stream.stream, + " /Pg %d 0 R\n", + page_info->page_res.id); + has_children = TRUE; + break; + } + } else { + has_children = TRUE; + } + } else { + first_page = mcid_elem->page; + page_info = _cairo_array_index (&surface->pages, first_page - 1); + _cairo_output_stream_printf (surface->object_stream.stream, + " /Pg %d 0 R\n", + page_info->page_res.id); + has_children = TRUE; + break; + } + } + + if (has_children || node->annot) { + _cairo_output_stream_printf (surface->object_stream.stream, " /K "); + + if (num_mcid > 1 || node->annot) + _cairo_output_stream_printf (surface->object_stream.stream, "[ "); + + for (i = 0; i < num_mcid; i++) { + if (node->annot) { + if (node->annot->link_attrs.link_page != first_page) { + page_info = _cairo_array_index (&surface->pages, node->annot->link_attrs.link_page - 1); + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Type /OBJR /Pg %d 0 R /Obj %d 0 R >> ", + page_info->page_res.id, + node->annot->res.id); + } else { + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Type /OBJR /Obj %d 0 R >> ", + node->annot->res.id); + } + } + mcid_elem = _cairo_array_index (&node->mcid, i); + if (mcid_elem->child_node) { + if (mcid_elem->child_node->type == PDF_NODE_CONTENT_REF) { + cairo_pdf_struct_tree_node_t *content_node; + status = lookup_content_node_for_ref_node (surface, mcid_elem->child_node, &content_node); + if (status) + return status; + + assert (content_node->type == PDF_NODE_CONTENT); + + /* CONTENT_REF will not have child nodes */ + for (j = 0; j < _cairo_array_num_elements (&content_node->mcid); j++) { + child_mcid_elem = _cairo_array_index (&content_node->mcid, j); + cairo_pdf_interchange_write_node_mcid (surface, child_mcid_elem, first_page); + } + } else if (mcid_elem->child_node->type != PDF_NODE_CONTENT) { + _cairo_output_stream_printf (surface->object_stream.stream, + " %d 0 R ", + mcid_elem->child_node->res.id); + } + } else { + cairo_pdf_interchange_write_node_mcid (surface, mcid_elem, first_page); + } + } + + if (num_mcid > 1 || node->annot) + _cairo_output_stream_printf (surface->object_stream.stream, "]"); + } + + _cairo_output_stream_printf (surface->object_stream.stream, "\n"); + } + + _cairo_output_stream_printf (surface->object_stream.stream, + ">>\n"); + + _cairo_pdf_surface_object_end (surface); + + return _cairo_output_stream_get_status (surface->object_stream.stream); +} + +static void +init_named_dest_key (cairo_pdf_named_dest_t *dest) +{ + dest->base.hash = _cairo_hash_bytes (_CAIRO_HASH_INIT_VALUE, + dest->attrs.name, + strlen (dest->attrs.name)); +} + +static cairo_bool_t +_named_dest_equal (const void *key_a, const void *key_b) +{ + const cairo_pdf_named_dest_t *a = key_a; + const cairo_pdf_named_dest_t *b = key_b; + + return strcmp (a->attrs.name, b->attrs.name) == 0; +} + +static void +_named_dest_pluck (void *entry, void *closure) +{ + cairo_pdf_named_dest_t *dest = entry; + cairo_hash_table_t *table = closure; + + _cairo_hash_table_remove (table, &dest->base); + _cairo_tag_free_dest_attributes (&dest->attrs); + free (dest); +} + +static cairo_int_status_t +cairo_pdf_interchange_write_explicit_dest (cairo_pdf_surface_t *surface, + int page, + cairo_bool_t has_pos, + double x, + double y) +{ + cairo_pdf_page_info_t *page_info; + + page_info = _cairo_array_index (&surface->pages, page - 1); + + if (has_pos) { + _cairo_output_stream_printf (surface->object_stream.stream, + "[%d 0 R /XYZ %f %f 0]\n", + page_info->page_res.id, + x, + page_info->height - y); + } else { + _cairo_output_stream_printf (surface->object_stream.stream, + "[%d 0 R /XYZ null null 0]\n", + page_info->page_res.id); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +cairo_pdf_interchange_write_dest (cairo_pdf_surface_t *surface, + cairo_link_attrs_t *link_attrs) +{ + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_pdf_interchange_t *ic = &surface->interchange; + + /* If the dest is known, emit an explicit dest */ + if (link_attrs->link_type == TAG_LINK_DEST_AND_URI || link_attrs->link_type == TAG_LINK_DEST) { + cairo_pdf_named_dest_t key; + cairo_pdf_named_dest_t *named_dest; + + /* check if we already have this dest */ + key.attrs.name = link_attrs->dest; + init_named_dest_key (&key); + named_dest = _cairo_hash_table_lookup (ic->named_dests, &key.base); + if (named_dest) { + double x = 0; + double y = 0; + + if (named_dest->extents.valid) { + x = named_dest->extents.extents.x; + y = named_dest->extents.extents.y; + } + + if (named_dest->attrs.x_valid) + x = named_dest->attrs.x; + + if (named_dest->attrs.y_valid) + y = named_dest->attrs.y; + + if (named_dest->attrs.internal) { + _cairo_output_stream_printf (surface->object_stream.stream, " /Dest "); + status = cairo_pdf_interchange_write_explicit_dest (surface, + named_dest->page, + TRUE, + x, y); + } else { + char *name = NULL; + + status = _cairo_utf8_to_pdf_string (named_dest->attrs.name, &name); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, " /Dest %s\n", + name); + free (name); + } + return status; + } + /* name does not exist */ + if (link_attrs->link_type == TAG_LINK_DEST_AND_URI) { + /* Don't emit anything. The caller will fallback to emitting a URI destination. */ + return CAIRO_INT_STATUS_NOTHING_TO_DO; + } + + /* Mising destination. Emit a "do nothing" dest that points to the same page and position. */ + _cairo_tag_warning ("Link to dest=\"%s\" not found", link_attrs->dest); + _cairo_output_stream_printf (surface->object_stream.stream, " /Dest "); + status = cairo_pdf_interchange_write_explicit_dest (surface, + link_attrs->link_page, + FALSE, + 0, 0); + return status; + } + + /* link_attrs->link_type == TAG_LINK_PAGE */ + + if (link_attrs->page < 1) + return _cairo_tag_error ("Link attribute: \"page=%d\" page must be >= 1", link_attrs->page); + + if (link_attrs->page > (int)_cairo_array_num_elements (&surface->pages)) + return _cairo_tag_error ("Link attribute: \"page=%d\" page exceeds page count (%d)", + link_attrs->page, _cairo_array_num_elements (&surface->pages)); + + _cairo_output_stream_printf (surface->object_stream.stream, " /Dest "); + return cairo_pdf_interchange_write_explicit_dest (surface, + link_attrs->page, + link_attrs->has_pos, + link_attrs->pos.x, + link_attrs->pos.y); +} + +static cairo_int_status_t +_cairo_utf8_to_pdf_utf8_hexstring (const char *utf8, char **str_out) +{ + int i; + int len; + unsigned char *p; + cairo_bool_t ascii; + char *str; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + + ascii = TRUE; + p = (unsigned char *)utf8; + len = 0; + while (*p) { + if (*p < 32 || *p > 126) { + ascii = FALSE; + } + if (*p == '(' || *p == ')' || *p == '\\') + len += 2; + else + len++; + p++; + } + + if (ascii) { + str = _cairo_malloc (len + 3); + if (str == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + str[0] = '('; + p = (unsigned char *)utf8; + i = 1; + while (*p) { + if (*p == '(' || *p == ')' || *p == '\\') + str[i++] = '\\'; + str[i++] = *p; + p++; + } + str[i++] = ')'; + str[i++] = 0; + } else { + str = _cairo_malloc (len*2 + 3); + if (str == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + str[0] = '<'; + p = (unsigned char *)utf8; + i = 1; + while (*p) { + if (*p == '\\') { + snprintf(str + i, 3, "%02x", '\\'); + i += 2; + } + snprintf(str + i, 3, "%02x", *p); + i += 2; + p++; + } + str[i++] = '>'; + str[i++] = 0; + } + *str_out = str; + + return status; +} + +static cairo_int_status_t +cairo_pdf_interchange_write_link_action (cairo_pdf_surface_t *surface, + cairo_link_attrs_t *link_attrs) +{ + cairo_int_status_t status; + char *dest = NULL; + + if (link_attrs->link_type == TAG_LINK_DEST_AND_URI || + link_attrs->link_type == TAG_LINK_DEST || + link_attrs->link_type == TAG_LINK_PAGE) + { + status = cairo_pdf_interchange_write_dest (surface, link_attrs); + if (status != CAIRO_INT_STATUS_NOTHING_TO_DO) + return status; + + /* CAIRO_INT_STATUS_NOTHING_TO_DO means that the link type is TAG_LINK_DEST_AND_URI + * and the DEST is missing. Fall through to writing a URI link below. + */ + } + + if (link_attrs->link_type == TAG_LINK_URI || link_attrs->link_type == TAG_LINK_DEST_AND_URI) { + status = _cairo_utf8_to_pdf_string (link_attrs->uri, &dest); + if (unlikely (status)) + return status; + + if (dest[0] != '(') { + free (dest); + return _cairo_tag_error ("Link attribute: \"url=%s\" URI may only contain ASCII characters", + link_attrs->uri); + } + + _cairo_output_stream_printf (surface->object_stream.stream, + " /A <<\n" + " /Type /Action\n" + " /S /URI\n" + " /URI %s\n" + " >>\n", + dest); + free (dest); + } else if (link_attrs->link_type == TAG_LINK_FILE) { + /* According to "Developing with PDF", Leonard Rosenthol, 2013, + * The F key is encoded in the "standard encoding for the + * platform on which the document is being viewed. For most + * modern operating systems, that's UTF-8" + * + * As we don't know the target platform, we assume UTF-8. The + * F key may contain multi-byte encodings using the hex + * encoding. + * + * For PDF 1.7 we also include the UF key which uses the + * standard PDF UTF-16BE strings. + */ + status = _cairo_utf8_to_pdf_utf8_hexstring (link_attrs->file, &dest); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + " /A <<\n" + " /Type /Action\n" + " /S /GoToR\n" + " /F %s\n", + dest); + free (dest); + + if (surface->pdf_version >= CAIRO_PDF_VERSION_1_7) + { + status = _cairo_utf8_to_pdf_string (link_attrs->file, &dest); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + " /UF %s\n", + dest); + free (dest); + } + + if (link_attrs->dest) { + status = _cairo_utf8_to_pdf_string (link_attrs->dest, &dest); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + " /D %s\n", + dest); + free (dest); + } else { + if (link_attrs->has_pos) { + _cairo_output_stream_printf (surface->object_stream.stream, + " /D [%d /XYZ %f %f 0]\n", + link_attrs->page, + link_attrs->pos.x, + link_attrs->pos.y); + } else { + _cairo_output_stream_printf (surface->object_stream.stream, + " /D [%d /XYZ null null 0]\n", + link_attrs->page); + } + } + _cairo_output_stream_printf (surface->object_stream.stream, + " >>\n"); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +cairo_pdf_interchange_write_annot (cairo_pdf_surface_t *surface, + cairo_pdf_annotation_t *annot, + cairo_bool_t struct_parents) +{ + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_pdf_struct_tree_node_t *node = annot->node; + int sp; + int i, num_rects; + double height; + + num_rects = _cairo_array_num_elements (&annot->link_attrs.rects); + if (strcmp (node->name, CAIRO_TAG_LINK) == 0 && + annot->link_attrs.link_type != TAG_LINK_EMPTY && + (node->extents.valid || num_rects > 0)) + { + status = _cairo_array_append (&ic->parent_tree, &node->res); + if (unlikely (status)) + return status; + + sp = _cairo_array_num_elements (&ic->parent_tree) - 1; + + status = _cairo_pdf_surface_object_begin (surface, annot->res); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Type /Annot\n" + " /Subtype /Link\n"); + + if (struct_parents) { + _cairo_output_stream_printf (surface->object_stream.stream, + " /StructParent %d\n", + sp); + } + + height = surface->height; + if (num_rects > 0) { + cairo_rectangle_int_t bbox_rect; + + _cairo_output_stream_printf (surface->object_stream.stream, + " /QuadPoints [ "); + for (i = 0; i < num_rects; i++) { + cairo_rectangle_t rectf; + cairo_rectangle_int_t recti; + + _cairo_array_copy_element (&annot->link_attrs.rects, i, &rectf); + _cairo_rectangle_int_from_double (&recti, &rectf); + if (i == 0) + bbox_rect = recti; + else + _cairo_rectangle_union (&bbox_rect, &recti); + + write_rect_to_pdf_quad_points (surface->object_stream.stream, &rectf, height); + _cairo_output_stream_printf (surface->object_stream.stream, " "); + } + _cairo_output_stream_printf (surface->object_stream.stream, + "]\n" + " /Rect [ "); + write_rect_int_to_pdf_bbox (surface->object_stream.stream, &bbox_rect, height); + _cairo_output_stream_printf (surface->object_stream.stream, " ]\n"); + } else { + _cairo_output_stream_printf (surface->object_stream.stream, + " /Rect [ "); + write_rect_int_to_pdf_bbox (surface->object_stream.stream, &node->extents.extents, height); + _cairo_output_stream_printf (surface->object_stream.stream, " ]\n"); + } + + status = cairo_pdf_interchange_write_link_action (surface, &annot->link_attrs); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + " /BS << /W 0 >>\n" + ">>\n"); + + _cairo_pdf_surface_object_end (surface); + status = _cairo_output_stream_get_status (surface->object_stream.stream); + } + + return status; +} + +static cairo_int_status_t +cairo_pdf_interchange_walk_struct_tree (cairo_pdf_surface_t *surface, + cairo_pdf_struct_tree_node_t *node, + int depth, + cairo_int_status_t (*func) (cairo_pdf_surface_t *surface, + cairo_pdf_struct_tree_node_t *node, + int depth)) +{ + cairo_int_status_t status; + cairo_pdf_struct_tree_node_t *child; + + status = func (surface, node, depth); + if (unlikely (status)) + return status; + + depth++; + cairo_list_foreach_entry (child, cairo_pdf_struct_tree_node_t, + &node->children, link) + { + status = cairo_pdf_interchange_walk_struct_tree (surface, child, depth, func); + if (unlikely (status)) + return status; + } + depth--; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +cairo_pdf_interchange_write_struct_tree (cairo_pdf_surface_t *surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_pdf_struct_tree_node_t *child; + cairo_int_status_t status; + + if (cairo_list_is_empty (&ic->struct_root->children)) + return CAIRO_STATUS_SUCCESS; + + status = cairo_pdf_interchange_walk_struct_tree (surface, + ic->struct_root, + 0, + cairo_pdf_interchange_write_node_object); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_object_begin (surface, surface->struct_tree_root); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Type /StructTreeRoot\n" + " /ParentTree %d 0 R\n", + ic->parent_tree_res.id); + + if (cairo_list_is_singular (&ic->struct_root->children)) { + child = cairo_list_first_entry (&ic->struct_root->children, cairo_pdf_struct_tree_node_t, link); + _cairo_output_stream_printf (surface->object_stream.stream, " /K [ %d 0 R ]\n", child->res.id); + } else { + _cairo_output_stream_printf (surface->object_stream.stream, " /K [ "); + + cairo_list_foreach_entry (child, cairo_pdf_struct_tree_node_t, + &ic->struct_root->children, link) + { + if (child->type == PDF_NODE_CONTENT || child->type == PDF_NODE_ARTIFACT) + continue; + + _cairo_output_stream_printf (surface->object_stream.stream, "%d 0 R ", child->res.id); + } + _cairo_output_stream_printf (surface->object_stream.stream, "]\n"); + } + + _cairo_output_stream_printf (surface->object_stream.stream, + ">>\n"); + _cairo_pdf_surface_object_end (surface); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +cairo_pdf_interchange_write_annots (cairo_pdf_surface_t *surface, + cairo_bool_t struct_parents) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + int num_elems, i, page_num; + cairo_pdf_page_info_t *page_info; + cairo_pdf_annotation_t *annot; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + + num_elems = _cairo_array_num_elements (&ic->annots); + for (i = 0; i < num_elems; i++) { + _cairo_array_copy_element (&ic->annots, i, &annot); + page_num = annot->link_attrs.link_page; + if (page_num > (int)_cairo_array_num_elements (&surface->pages)) { + return _cairo_tag_error ("Link attribute: \"link_page=%d\" page exceeds page count (%d)", + page_num, + _cairo_array_num_elements (&surface->pages)); + } + + page_info = _cairo_array_index (&surface->pages, page_num - 1); + status = _cairo_array_append (&page_info->annots, &annot->res); + if (status) + return status; + + status = cairo_pdf_interchange_write_annot (surface, annot, struct_parents); + if (unlikely (status)) + return status; + } + + return status; +} + +static cairo_int_status_t +cairo_pdf_interchange_write_content_parent_elems (cairo_pdf_surface_t *surface) +{ + int num_elems, i; + cairo_pdf_struct_tree_node_t *node; + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + + num_elems = _cairo_array_num_elements (&ic->mcid_to_tree); + status = _cairo_pdf_surface_object_begin (surface, ic->content_parent_res); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + "[\n"); + for (i = 0; i < num_elems; i++) { + _cairo_array_copy_element (&ic->mcid_to_tree, i, &node); + _cairo_output_stream_printf (surface->object_stream.stream, " %d 0 R\n", node->res.id); + } + _cairo_output_stream_printf (surface->object_stream.stream, + "]\n"); + _cairo_pdf_surface_object_end (surface); + + return status; +} + +static cairo_int_status_t +cairo_pdf_interchange_apply_extents_from_content_ref (cairo_pdf_surface_t *surface, + cairo_pdf_struct_tree_node_t *node, + int depth) +{ + cairo_int_status_t status; + + if (node->type != PDF_NODE_CONTENT_REF) + return CAIRO_STATUS_SUCCESS; + + cairo_pdf_struct_tree_node_t *content_node; + status = lookup_content_node_for_ref_node (surface, node, &content_node); + if (status) + return status; + + /* Merge extents with all parent nodes */ + node = node->parent; + while (node) { + if (node->extents.valid) { + _cairo_rectangle_union (&node->extents.extents, &content_node->extents.extents); + } else { + node->extents = content_node->extents; + } + node = node->parent; + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +cairo_pdf_interchange_update_extents (cairo_pdf_surface_t *surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + + return cairo_pdf_interchange_walk_struct_tree (surface, + ic->struct_root, + 0, + cairo_pdf_interchange_apply_extents_from_content_ref); +} + +static cairo_int_status_t +cairo_pdf_interchange_write_parent_tree (cairo_pdf_surface_t *surface) +{ + int num_elems, i; + cairo_pdf_resource_t *res; + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_int_status_t status; + + num_elems = _cairo_array_num_elements (&ic->parent_tree); + if (num_elems > 0) { + ic->parent_tree_res = _cairo_pdf_surface_new_object (surface); + if (ic->parent_tree_res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_pdf_surface_object_begin (surface, ic->parent_tree_res); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Nums [\n"); + for (i = 0; i < num_elems; i++) { + res = _cairo_array_index (&ic->parent_tree, i); + if (res->id) { + _cairo_output_stream_printf (surface->object_stream.stream, + " %d %d 0 R\n", + i, + res->id); + } + } + _cairo_output_stream_printf (surface->object_stream.stream, + " ]\n" + ">>\n"); + _cairo_pdf_surface_object_end (surface); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +cairo_pdf_interchange_write_outline (cairo_pdf_surface_t *surface) +{ + int num_elems, i; + cairo_pdf_outline_entry_t *outline; + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_int_status_t status; + char *name = NULL; + + num_elems = _cairo_array_num_elements (&ic->outline); + if (num_elems < 2) + return CAIRO_INT_STATUS_SUCCESS; + + _cairo_array_copy_element (&ic->outline, 0, &outline); + outline->res = _cairo_pdf_surface_new_object (surface); + if (outline->res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + surface->outlines_dict_res = outline->res; + status = _cairo_pdf_surface_object_begin (surface, outline->res); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Type /Outlines\n" + " /First %d 0 R\n" + " /Last %d 0 R\n" + " /Count %d\n" + ">>\n", + outline->first_child->res.id, + outline->last_child->res.id, + outline->count); + _cairo_pdf_surface_object_end (surface); + + for (i = 1; i < num_elems; i++) { + _cairo_array_copy_element (&ic->outline, i, &outline); + _cairo_pdf_surface_update_object (surface, outline->res); + + status = _cairo_utf8_to_pdf_string (outline->name, &name); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_object_begin (surface, outline->res); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Title %s\n" + " /Parent %d 0 R\n", + name, + outline->parent->res.id); + free (name); + + if (outline->prev) { + _cairo_output_stream_printf (surface->object_stream.stream, + " /Prev %d 0 R\n", + outline->prev->res.id); + } + + if (outline->next) { + _cairo_output_stream_printf (surface->object_stream.stream, + " /Next %d 0 R\n", + outline->next->res.id); + } + + if (outline->first_child) { + _cairo_output_stream_printf (surface->object_stream.stream, + " /First %d 0 R\n" + " /Last %d 0 R\n" + " /Count %d\n", + outline->first_child->res.id, + outline->last_child->res.id, + outline->count); + } + + if (outline->flags) { + int flags = 0; + if (outline->flags & CAIRO_PDF_OUTLINE_FLAG_ITALIC) + flags |= 1; + if (outline->flags & CAIRO_PDF_OUTLINE_FLAG_BOLD) + flags |= 2; + _cairo_output_stream_printf (surface->object_stream.stream, + " /F %d\n", + flags); + } + + status = cairo_pdf_interchange_write_link_action (surface, &outline->link_attrs); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + ">>\n"); + _cairo_pdf_surface_object_end (surface); + } + + return status; +} + +/* + * Split a page label into a text prefix and numeric suffix. Leading '0's are + * included in the prefix. eg + * "3" => NULL, 3 + * "cover" => "cover", 0 + * "A-2" => "A-", 2 + * "A-002" => "A-00", 2 + */ +static char * +split_label (const char* label, int *num) +{ + int len, i; + + *num = 0; + len = strlen (label); + if (len == 0) + return NULL; + + i = len; + while (i > 0 && _cairo_isdigit (label[i-1])) + i--; + + while (i < len && label[i] == '0') + i++; + + if (i < len) + sscanf (label + i, "%d", num); + + if (i > 0) { + char *s; + s = _cairo_malloc (i + 1); + if (!s) + return NULL; + + memcpy (s, label, i); + s[i] = 0; + return s; + } + + return NULL; +} + +/* strcmp that handles NULL arguments */ +static cairo_bool_t +strcmp_null (const char *s1, const char *s2) +{ + if (s1 && s2) + return strcmp (s1, s2) == 0; + + if (!s1 && !s2) + return TRUE; + + return FALSE; +} + +static cairo_int_status_t +cairo_pdf_interchange_write_page_labels (cairo_pdf_surface_t *surface) +{ + int num_elems, i; + char *label; + char *prefix; + char *prev_prefix; + int num, prev_num; + cairo_int_status_t status; + cairo_bool_t has_labels; + + /* Check if any labels defined */ + num_elems = _cairo_array_num_elements (&surface->page_labels); + has_labels = FALSE; + for (i = 0; i < num_elems; i++) { + _cairo_array_copy_element (&surface->page_labels, i, &label); + if (label) { + has_labels = TRUE; + break; + } + } + + if (!has_labels) + return CAIRO_STATUS_SUCCESS; + + surface->page_labels_res = _cairo_pdf_surface_new_object (surface); + if (surface->page_labels_res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_pdf_surface_object_begin (surface, surface->page_labels_res); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Nums [\n"); + prefix = NULL; + prev_prefix = NULL; + num = 0; + prev_num = 0; + for (i = 0; i < num_elems; i++) { + _cairo_array_copy_element (&surface->page_labels, i, &label); + if (label) { + prefix = split_label (label, &num); + } else { + prefix = NULL; + num = i + 1; + } + + if (!strcmp_null (prefix, prev_prefix) || num != prev_num + 1) { + _cairo_output_stream_printf (surface->object_stream.stream, " %d << ", i); + + if (num) + _cairo_output_stream_printf (surface->object_stream.stream, "/S /D /St %d ", num); + + if (prefix) { + char *s; + status = _cairo_utf8_to_pdf_string (prefix, &s); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, "/P %s ", s); + free (s); + } + + _cairo_output_stream_printf (surface->object_stream.stream, ">>\n"); + } + free (prev_prefix); + prev_prefix = prefix; + prefix = NULL; + prev_num = num; + } + free (prefix); + free (prev_prefix); + _cairo_output_stream_printf (surface->object_stream.stream, + " ]\n" + ">>\n"); + _cairo_pdf_surface_object_end (surface); + + return CAIRO_STATUS_SUCCESS; +} + +static void +_collect_external_dest (void *entry, void *closure) +{ + cairo_pdf_named_dest_t *dest = entry; + cairo_pdf_surface_t *surface = closure; + cairo_pdf_interchange_t *ic = &surface->interchange; + + if (!dest->attrs.internal) + ic->sorted_dests[ic->num_dests++] = dest; +} + +static int +_dest_compare (const void *a, const void *b) +{ + const cairo_pdf_named_dest_t * const *dest_a = a; + const cairo_pdf_named_dest_t * const *dest_b = b; + + return strcmp ((*dest_a)->attrs.name, (*dest_b)->attrs.name); +} + +static cairo_int_status_t +_cairo_pdf_interchange_write_document_dests (cairo_pdf_surface_t *surface) +{ + int i; + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_int_status_t status; + cairo_pdf_page_info_t *page_info; + + if (ic->num_dests == 0) { + ic->dests_res.id = 0; + return CAIRO_STATUS_SUCCESS; + } + + ic->sorted_dests = _cairo_calloc_ab (ic->num_dests, sizeof (cairo_pdf_named_dest_t *)); + if (unlikely (ic->sorted_dests == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + ic->num_dests = 0; + _cairo_hash_table_foreach (ic->named_dests, _collect_external_dest, surface); + + qsort (ic->sorted_dests, ic->num_dests, sizeof (cairo_pdf_named_dest_t *), _dest_compare); + + ic->dests_res = _cairo_pdf_surface_new_object (surface); + if (ic->dests_res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_pdf_surface_object_begin (surface, ic->dests_res); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Names [\n"); + for (i = 0; i < ic->num_dests; i++) { + cairo_pdf_named_dest_t *dest = ic->sorted_dests[i]; + double x = 0; + double y = 0; + char *name = NULL; + + if (dest->attrs.internal) + continue; + + if (dest->extents.valid) { + x = dest->extents.extents.x; + y = dest->extents.extents.y; + } + + if (dest->attrs.x_valid) + x = dest->attrs.x; + + if (dest->attrs.y_valid) + y = dest->attrs.y; + + status = _cairo_utf8_to_pdf_string (dest->attrs.name, &name); + if (unlikely (status)) + return status; + + page_info = _cairo_array_index (&surface->pages, dest->page - 1); + _cairo_output_stream_printf (surface->object_stream.stream, + " %s [%d 0 R /XYZ %f %f 0]\n", + name, + page_info->page_res.id, + x, + page_info->height - y); + free (name); + + } + _cairo_output_stream_printf (surface->object_stream.stream, + " ]\n" + ">>\n"); + _cairo_pdf_surface_object_end (surface); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +cairo_pdf_interchange_write_names_dict (cairo_pdf_surface_t *surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_int_status_t status; + + status = _cairo_pdf_interchange_write_document_dests (surface); + if (unlikely (status)) + return status; + + surface->names_dict_res.id = 0; + if (ic->dests_res.id != 0) { + surface->names_dict_res = _cairo_pdf_surface_new_object (surface); + if (surface->names_dict_res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_pdf_surface_object_begin (surface, surface->names_dict_res); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Dests %d 0 R >>\n", + ic->dests_res.id); + _cairo_pdf_surface_object_end (surface); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +cairo_pdf_interchange_write_docinfo (cairo_pdf_surface_t *surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_int_status_t status; + unsigned int i, num_elems; + struct metadata *data; + unsigned char *p; + + surface->docinfo_res = _cairo_pdf_surface_new_object (surface); + if (surface->docinfo_res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_pdf_surface_object_begin (surface, surface->docinfo_res); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Producer (cairo %s (https://cairographics.org))\n", + cairo_version_string ()); + + if (ic->docinfo.title) + _cairo_output_stream_printf (surface->object_stream.stream, " /Title %s\n", ic->docinfo.title); + + if (ic->docinfo.author) + _cairo_output_stream_printf (surface->object_stream.stream, " /Author %s\n", ic->docinfo.author); + + if (ic->docinfo.subject) + _cairo_output_stream_printf (surface->object_stream.stream, " /Subject %s\n", ic->docinfo.subject); + + if (ic->docinfo.keywords) + _cairo_output_stream_printf (surface->object_stream.stream, " /Keywords %s\n", ic->docinfo.keywords); + + if (ic->docinfo.creator) + _cairo_output_stream_printf (surface->object_stream.stream, " /Creator %s\n", ic->docinfo.creator); + + if (ic->docinfo.create_date) + _cairo_output_stream_printf (surface->object_stream.stream, " /CreationDate %s\n", ic->docinfo.create_date); + + if (ic->docinfo.mod_date) + _cairo_output_stream_printf (surface->object_stream.stream, " /ModDate %s\n", ic->docinfo.mod_date); + + num_elems = _cairo_array_num_elements (&ic->custom_metadata); + for (i = 0; i < num_elems; i++) { + data = _cairo_array_index (&ic->custom_metadata, i); + if (data->value) { + _cairo_output_stream_printf (surface->object_stream.stream, " /"); + /* The name can be any utf8 string. Use hex codes as + * specified in section 7.3.5 of PDF reference + */ + p = (unsigned char *)data->name; + while (*p) { + if (*p < 0x21 || *p > 0x7e || *p == '#' || *p == '/') + _cairo_output_stream_printf (surface->object_stream.stream, "#%02x", *p); + else + _cairo_output_stream_printf (surface->object_stream.stream, "%c", *p); + p++; + } + _cairo_output_stream_printf (surface->object_stream.stream, " %s\n", data->value); + } + } + + _cairo_output_stream_printf (surface->object_stream.stream, + ">>\n"); + _cairo_pdf_surface_object_end (surface); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_pdf_interchange_begin_structure_tag (cairo_pdf_surface_t *surface, + cairo_tag_type_t tag_type, + const char *name, + const char *attributes) +{ + int mcid; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_pdf_command_entry_t *command_entry; + cairo_pdf_struct_tree_node_t *parent_node; + unsigned int content_command_id; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + ic->content_emitted = FALSE; + status = add_tree_node (surface, ic->current_analyze_node, name, attributes, &ic->current_analyze_node); + if (unlikely (status)) + return status; + + status = command_list_add (surface, ic->command_id, PDF_BEGIN); + if (unlikely (status)) + return status; + + /* Add to command_id to node map. */ + command_entry = _cairo_calloc (sizeof(cairo_pdf_command_entry_t)); + command_entry->recording_id = ic->recording_id; + command_entry->command_id = ic->command_id; + command_entry->node = ic->current_analyze_node; + _cairo_pdf_command_init_key (command_entry); + status = _cairo_hash_table_insert (ic->command_to_node_map, &command_entry->base); + if (unlikely(status)) + return status; + + if (tag_type & TAG_TYPE_LINK) { + status = add_annotation (surface, ic->current_analyze_node, name, attributes); + if (unlikely (status)) + return status; + } + + if (ic->current_analyze_node->type == PDF_NODE_CONTENT) { + cairo_pdf_content_tag_t *content = _cairo_calloc (sizeof(cairo_pdf_content_tag_t)); + content->node = ic->current_analyze_node; + _cairo_pdf_content_tag_init_key (content); + status = _cairo_hash_table_insert (ic->content_tag_map, &content->base); + if (unlikely (status)) + return status; + } + + ic->content_emitted = FALSE; + + } else if (surface->paginated_mode == CAIRO_PAGINATED_MODE_RENDER) { + if (ic->marked_content_open) { + status = _cairo_pdf_operators_tag_end (&surface->pdf_operators); + ic->marked_content_open = FALSE; + if (unlikely (status)) + return status; + } + + ic->current_render_node = lookup_node_for_command (surface, ic->recording_id, ic->command_id); + if (ic->current_render_node->type == PDF_NODE_ARTIFACT) { + if (command_list_has_content (surface, ic->command_id, NULL)) { + status = _cairo_pdf_operators_tag_begin (&surface->pdf_operators, name, -1); + ic->marked_content_open = TRUE; + } + } else if (ic->current_render_node->type == PDF_NODE_CONTENT_REF) { + parent_node = ic->current_render_node->parent; + add_child_to_mcid_array (surface, parent_node, ic->command_id, ic->current_render_node); + } else { + parent_node = ic->current_render_node->parent; + add_child_to_mcid_array (surface, parent_node, ic->command_id, ic->current_render_node); + if (command_list_has_content (surface, ic->command_id, &content_command_id)) { + add_mcid_to_node (surface, ic->current_render_node, content_command_id, &mcid); + const char *tag_name = name; + if (ic->current_render_node->type == PDF_NODE_CONTENT) + tag_name = ic->current_render_node->attributes.content.tag_name; + + status = _cairo_pdf_operators_tag_begin (&surface->pdf_operators, tag_name, mcid); + ic->marked_content_open = TRUE; + } + } + } + + return status; +} + +static cairo_int_status_t +_cairo_pdf_interchange_begin_dest_tag (cairo_pdf_surface_t *surface, + cairo_tag_type_t tag_type, + const char *name, + const char *attributes) +{ + cairo_pdf_named_dest_t *dest; + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + dest = _cairo_calloc (sizeof (cairo_pdf_named_dest_t)); + if (unlikely (dest == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_tag_parse_dest_attributes (attributes, &dest->attrs); + if (unlikely (status)) + { + free (dest); + return status; + } + + dest->page = _cairo_array_num_elements (&surface->pages); + init_named_dest_key (dest); + status = _cairo_hash_table_insert (ic->named_dests, &dest->base); + if (unlikely (status)) { + free (dest->attrs.name); + free (dest); + return status; + } + + _cairo_tag_stack_set_top_data (&ic->analysis_tag_stack, dest); + ic->num_dests++; + } + + return status; +} + +cairo_int_status_t +_cairo_pdf_interchange_tag_begin (cairo_pdf_surface_t *surface, + const char *name, + const char *attributes) +{ + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_tag_type_t tag_type; + cairo_pdf_interchange_t *ic = &surface->interchange; + + if (ic->ignore_current_surface) + return CAIRO_STATUS_SUCCESS; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + status = _cairo_tag_stack_push (&ic->analysis_tag_stack, name, attributes); + + } else if (surface->paginated_mode == CAIRO_PAGINATED_MODE_RENDER) { + status = _cairo_tag_stack_push (&ic->render_tag_stack, name, attributes); + } + if (unlikely (status)) + return status; + + tag_type = _cairo_tag_get_type (name); + if (tag_type & (TAG_TYPE_STRUCTURE|TAG_TYPE_CONTENT|TAG_TYPE_CONTENT_REF|TAG_TYPE_ARTIFACT)) { + status = _cairo_pdf_interchange_begin_structure_tag (surface, tag_type, name, attributes); + if (unlikely (status)) + return status; + } + + if (tag_type & TAG_TYPE_DEST) { + status = _cairo_pdf_interchange_begin_dest_tag (surface, tag_type, name, attributes); + if (unlikely (status)) + return status; + } + + return status; +} + +static cairo_int_status_t +_cairo_pdf_interchange_end_structure_tag (cairo_pdf_surface_t *surface, + cairo_tag_type_t tag_type, + cairo_tag_stack_elem_t *elem) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + int mcid; + unsigned int content_command_id; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + assert (ic->current_analyze_node->parent != NULL); + status = command_list_add (surface, ic->command_id, PDF_END); + if (unlikely (status)) + return status; + + ic->content_emitted = FALSE; + ic->current_analyze_node = ic->current_analyze_node->parent; + + } else if (surface->paginated_mode == CAIRO_PAGINATED_MODE_RENDER) { + if (ic->marked_content_open) { + status = _cairo_pdf_operators_tag_end (&surface->pdf_operators); + ic->marked_content_open = FALSE; + if (unlikely (status)) + return status; + } + ic->current_render_node = ic->current_render_node->parent; + if (ic->current_render_node->parent && + command_list_has_content (surface, ic->command_id, &content_command_id)) + { + add_mcid_to_node (surface, ic->current_render_node, content_command_id, &mcid); + status = _cairo_pdf_operators_tag_begin (&surface->pdf_operators, + ic->current_render_node->name, mcid); + ic->marked_content_open = TRUE; + } + } + + return status; +} + +cairo_int_status_t +_cairo_pdf_interchange_tag_end (cairo_pdf_surface_t *surface, + const char *name) +{ + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_tag_type_t tag_type; + cairo_tag_stack_elem_t *elem; + + if (ic->ignore_current_surface) + return CAIRO_STATUS_SUCCESS; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + status = _cairo_tag_stack_pop (&ic->analysis_tag_stack, name, &elem); + + } else if (surface->paginated_mode == CAIRO_PAGINATED_MODE_RENDER) { + status = _cairo_tag_stack_pop (&ic->render_tag_stack, name, &elem); + } else { + ASSERT_NOT_REACHED; + } + if (unlikely (status)) + return status; + + tag_type = _cairo_tag_get_type (name); + if (tag_type & (TAG_TYPE_STRUCTURE|TAG_TYPE_CONTENT|TAG_TYPE_CONTENT_REF|TAG_TYPE_ARTIFACT)) { + status = _cairo_pdf_interchange_end_structure_tag (surface, tag_type, elem); + if (unlikely (status)) + goto cleanup; + } + + cleanup: + _cairo_tag_stack_free_elem (elem); + + return status; +} + +cairo_int_status_t +_cairo_pdf_interchange_command_id (cairo_pdf_surface_t *surface, + unsigned int recording_id, + unsigned int command_id) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + int mcid; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + + ic->recording_id = recording_id; + ic->command_id = command_id; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_RENDER && ic->current_render_node) { + /* TODO If the group does not have tags we don't need to close the current tag. */ + if (command_list_is_group (surface, command_id)) { + /* A "Do /xnnn" can not be inside a tag (since the + * XObject may also contain tags). Close the tag. + */ + if (ic->marked_content_open) { + status = _cairo_pdf_operators_tag_end (&surface->pdf_operators); + ic->marked_content_open = FALSE; + } + /* If there is any more content after this and we are + * inside a tag (current node is not the root node), + * ensure that the next command will open the tag. + */ + if (command_list_has_content (surface, command_id, NULL) && ic->current_render_node->parent) { + ic->render_next_command_has_content = TRUE; + } + } else if (ic->render_next_command_has_content) { + /* After a "Do /xnnn" operation, if there is more content, open the tag. */ + add_mcid_to_node (surface, ic->current_render_node, ic->command_id, &mcid); + status = _cairo_pdf_operators_tag_begin (&surface->pdf_operators, + ic->current_render_node->name, mcid); + ic->marked_content_open = TRUE; + ic->render_next_command_has_content = FALSE; + } + } + + return status; +} + +/* Check if this use of recording surface is or will need to be part of the the struct tree */ +cairo_bool_t +_cairo_pdf_interchange_struct_tree_requires_recording_surface ( + cairo_pdf_surface_t *surface, + const cairo_surface_pattern_t *recording_surface_pattern, + cairo_analysis_source_t source_type) +{ + cairo_surface_t *recording_surface = recording_surface_pattern->surface; + cairo_surface_t *free_me = NULL; + cairo_bool_t requires_recording = FALSE; + + if (recording_surface_pattern->base.extend != CAIRO_EXTEND_NONE) + return FALSE; + + if (_cairo_surface_is_snapshot (recording_surface)) + free_me = recording_surface = _cairo_surface_snapshot_get_target (recording_surface); + + if (_cairo_surface_is_recording (recording_surface) && + _cairo_recording_surface_has_tags (recording_surface)) + { + /* Check if tags are to be ignored in this source */ + switch (source_type) { + case CAIRO_ANALYSIS_SOURCE_PAINT: + case CAIRO_ANALYSIS_SOURCE_FILL: + requires_recording = TRUE; + break; + case CAIRO_ANALYSIS_SOURCE_MASK: /* TODO: allow SOURCE_MASK with solid MASK_MASK */ + case CAIRO_ANALYSIS_MASK_MASK: + case CAIRO_ANALYSIS_SOURCE_STROKE: + case CAIRO_ANALYSIS_SOURCE_SHOW_GLYPHS: + case CAIRO_ANALYSIS_SOURCE_NONE: + break; + } + } + + cairo_surface_destroy (free_me); + return requires_recording; +} + +/* Called at the start of a recording group during analyze. This will + * be called during the analysis of the drawing operation. */ +cairo_int_status_t +_cairo_pdf_interchange_recording_source_surface_begin ( + cairo_pdf_surface_t *surface, + const cairo_surface_pattern_t *recording_surface_pattern, + unsigned int region_id, + cairo_analysis_source_t source_type) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_recording_surface_stack_entry_t element; + cairo_int_status_t status; + + /* A new recording surface is being replayed */ + ic->ignore_current_surface = TRUE; + if (_cairo_pdf_interchange_struct_tree_requires_recording_surface (surface, + recording_surface_pattern, + source_type)) + { + ic->ignore_current_surface = FALSE; + } + + element.ignore_surface = ic->ignore_current_surface; + element.current_node = ic->current_analyze_node; + ic->content_emitted = FALSE; + + /* Push to stack so that the current source identifiers can be + * restored after this recording surface has ended. */ + status = _cairo_array_append (&ic->recording_surface_stack, &element); + if (status) + return status; + + if (ic->ignore_current_surface) + return CAIRO_STATUS_SUCCESS; + + status = command_list_push_group (surface, ic->command_id, recording_surface_pattern->surface, region_id); + if (unlikely (status)) + return status; + + return CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN; +} + +/* Called at the end of a recording group during analyze. */ +cairo_int_status_t +_cairo_pdf_interchange_recording_source_surface_end ( + cairo_pdf_surface_t *surface, + const cairo_surface_pattern_t *recording_surface_pattern, + unsigned int region_id, + cairo_analysis_source_t source_type) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_recording_surface_stack_entry_t element; + cairo_recording_surface_stack_entry_t *element_ptr; + + if (!ic->ignore_current_surface) + command_list_pop_group (surface); + + if (_cairo_array_pop_element (&ic->recording_surface_stack, &element)) { + element_ptr = _cairo_array_last_element (&ic->recording_surface_stack); + if (element_ptr) { + ic->ignore_current_surface = element_ptr->ignore_surface; + assert (ic->current_analyze_node == element_ptr->current_node); + } else { + /* Back at the page content. */ + ic->ignore_current_surface = FALSE; + } + ic->content_emitted = FALSE; + return CAIRO_STATUS_SUCCESS; + } + ASSERT_NOT_REACHED; /* _recording_source_surface_begin/end mismatch */ + + return CAIRO_STATUS_SUCCESS; +} + +/* Called at the start of a recording group during render. This will + * be called after the end of page content. */ +cairo_int_status_t +_cairo_pdf_interchange_emit_recording_surface_begin (cairo_pdf_surface_t *surface, + cairo_surface_t *recording_surface, + int region_id, + cairo_pdf_resource_t surface_resource, + int *struct_parents) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_int_status_t status; + + /* When + * _cairo_pdf_interchange_struct_tree_requires_recording_surface() + * is false, the region_id of the recording surface is set to 0. + */ + if (region_id == 0) { + ic->ignore_current_surface = TRUE; + return CAIRO_STATUS_SUCCESS; + } + + command_list_set_current_recording_commands (surface, recording_surface, region_id); + + ic->ignore_current_surface = FALSE; + _cairo_array_truncate (&ic->mcid_to_tree, 0); + ic->current_recording_surface_res = surface_resource; + + ic->content_parent_res = _cairo_pdf_surface_new_object (surface); + if (ic->content_parent_res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_array_append (&ic->parent_tree, &ic->content_parent_res); + if (unlikely (status)) + return status; + + *struct_parents = _cairo_array_num_elements (&ic->parent_tree) - 1; + + ic->render_next_command_has_content = FALSE; + + return CAIRO_STATUS_SUCCESS; +} + +/* Called at the end of a recording group during render. */ +cairo_int_status_t +_cairo_pdf_interchange_emit_recording_surface_end (cairo_pdf_surface_t *surface, + cairo_surface_t *recording_surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + + if (ic->ignore_current_surface) + return CAIRO_STATUS_SUCCESS; + + ic->current_recording_surface_res.id = 0; + return cairo_pdf_interchange_write_content_parent_elems (surface); +} + +static void _add_operation_extents_to_dest_tag (cairo_tag_stack_elem_t *elem, + void *closure) +{ + const cairo_rectangle_int_t *extents = (const cairo_rectangle_int_t *) closure; + cairo_pdf_named_dest_t *dest; + + if (_cairo_tag_get_type (elem->name) & TAG_TYPE_DEST) { + if (elem->data) { + dest = (cairo_pdf_named_dest_t *) elem->data; + if (dest->extents.valid) { + _cairo_rectangle_union (&dest->extents.extents, extents); + } else { + dest->extents.extents = *extents; + dest->extents.valid = TRUE; + } + } + } +} + +cairo_int_status_t +_cairo_pdf_interchange_add_operation_extents (cairo_pdf_surface_t *surface, + const cairo_rectangle_int_t *extents) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + + /* Add extents to current node and all DEST tags on the stack */ + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + if (ic->current_analyze_node) { + if (ic->current_analyze_node->extents.valid) { + _cairo_rectangle_union (&ic->current_analyze_node->extents.extents, extents); + } else { + ic->current_analyze_node->extents.extents = *extents; + ic->current_analyze_node->extents.valid = TRUE; + } + } + + _cairo_tag_stack_foreach (&ic->analysis_tag_stack, + _add_operation_extents_to_dest_tag, + (void*)extents); + } + + return CAIRO_STATUS_SUCCESS; +} + +cairo_int_status_t +_cairo_pdf_interchange_add_content (cairo_pdf_surface_t *surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + + if (ic->ignore_current_surface) + return CAIRO_STATUS_SUCCESS; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + status = command_list_add (surface, ic->command_id, PDF_CONTENT); + if (unlikely (status)) + return status; + } + + return status; +} + +/* Called at the start of 1emiting the page content during analyze or render */ +cairo_int_status_t +_cairo_pdf_interchange_begin_page_content (cairo_pdf_surface_t *surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + int mcid; + unsigned int content_command_id; + cairo_pdf_command_list_t *page_commands; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + status = _cairo_array_allocate (&ic->page_commands, 1, (void**)&page_commands); + if (unlikely (status)) + return status; + + _cairo_array_init (&page_commands->commands, sizeof(cairo_pdf_command_t)); + page_commands->parent = NULL; + ic->current_commands = page_commands; + ic->ignore_current_surface = FALSE; + } else if (surface->paginated_mode == CAIRO_PAGINATED_MODE_RENDER) { + ic->current_commands = _cairo_array_last_element (&ic->page_commands); + /* Each page has its own parent tree to map MCID to nodes. */ + _cairo_array_truncate (&ic->mcid_to_tree, 0); + ic->ignore_current_surface = FALSE; + ic->content_parent_res = _cairo_pdf_surface_new_object (surface); + if (ic->content_parent_res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_array_append (&ic->parent_tree, &ic->content_parent_res); + if (unlikely (status)) + return status; + + surface->page_parent_tree = _cairo_array_num_elements (&ic->parent_tree) - 1; + + if (ic->next_page_render_node && ic->next_page_render_node->parent && + command_list_has_content (surface, -1, &content_command_id)) + { + add_mcid_to_node (surface, ic->next_page_render_node, content_command_id, &mcid); + const char *tag_name = ic->next_page_render_node->name; + if (ic->next_page_render_node->type == PDF_NODE_CONTENT) + tag_name = ic->next_page_render_node->attributes.content.tag_name; + + status = _cairo_pdf_operators_tag_begin (&surface->pdf_operators, tag_name, mcid); + ic->marked_content_open = TRUE; + } + ic->render_next_command_has_content = FALSE; + } + + return status; +} + +/* Called at the end of emiting the page content during analyze or render */ +cairo_int_status_t +_cairo_pdf_interchange_end_page_content (cairo_pdf_surface_t *surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_RENDER) { + /* If a content tag is open across pages, the old page needs an EMC emitted. */ + if (ic->marked_content_open) { + status = _cairo_pdf_operators_tag_end (&surface->pdf_operators); + ic->marked_content_open = FALSE; + } + ic->next_page_render_node = ic->current_render_node; + } + + return status; +} + +cairo_int_status_t +_cairo_pdf_interchange_write_page_objects (cairo_pdf_surface_t *surface) +{ + return cairo_pdf_interchange_write_content_parent_elems (surface); +} + +cairo_int_status_t +_cairo_pdf_interchange_write_document_objects (cairo_pdf_surface_t *surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_tag_stack_structure_type_t tag_type; + cairo_bool_t write_struct_tree = FALSE; + + status = cairo_pdf_interchange_update_extents (surface); + if (unlikely (status)) + return status; + + tag_type = _cairo_tag_stack_get_structure_type (&ic->analysis_tag_stack); + if (tag_type == TAG_TREE_TYPE_TAGGED || tag_type == TAG_TREE_TYPE_STRUCTURE || + tag_type == TAG_TREE_TYPE_LINK_ONLY) + { + write_struct_tree = TRUE; + } + + status = cairo_pdf_interchange_write_annots (surface, write_struct_tree); + if (unlikely (status)) + return status; + + if (write_struct_tree) { + surface->struct_tree_root = _cairo_pdf_surface_new_object (surface); + if (surface->struct_tree_root.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + ic->struct_root->res = surface->struct_tree_root; + + status = cairo_pdf_interchange_write_parent_tree (surface); + if (unlikely (status)) + return status; + + unsigned num_pages = _cairo_array_num_elements (&ic->page_commands); + for (unsigned i = 0; i < num_pages; i++) { + cairo_pdf_command_list_t *command_list; + command_list = _cairo_array_index (&ic->page_commands, i); + update_mcid_order (surface, command_list); + } + + status = cairo_pdf_interchange_write_struct_tree (surface); + if (unlikely (status)) + return status; + + if (tag_type == TAG_TREE_TYPE_TAGGED) + surface->tagged = TRUE; + } + + status = cairo_pdf_interchange_write_outline (surface); + if (unlikely (status)) + return status; + + status = cairo_pdf_interchange_write_page_labels (surface); + if (unlikely (status)) + return status; + + status = cairo_pdf_interchange_write_names_dict (surface); + if (unlikely (status)) + return status; + + status = cairo_pdf_interchange_write_docinfo (surface); + + return status; +} + +static void +_cairo_pdf_interchange_set_create_date (cairo_pdf_surface_t *surface) +{ + time_t utc, local, offset; + struct tm tm_local, tm_utc; + char buf[50]; + int buf_size; + char *p; + cairo_pdf_interchange_t *ic = &surface->interchange; + + utc = time (NULL); + localtime_r (&utc, &tm_local); + strftime (buf, sizeof(buf), "(D:%Y%m%d%H%M%S", &tm_local); + + /* strftime "%z" is non standard and does not work on windows (it prints zone name, not offset). + * Calculate time zone offset by comparing local and utc time_t values for the same time. + */ + gmtime_r (&utc, &tm_utc); + tm_utc.tm_isdst = tm_local.tm_isdst; + local = mktime (&tm_utc); + offset = difftime (utc, local); + + if (offset == 0) { + strcat (buf, "Z"); + } else { + if (offset > 0) { + strcat (buf, "+"); + } else { + strcat (buf, "-"); + offset = -offset; + } + p = buf + strlen (buf); + buf_size = sizeof (buf) - strlen (buf); + snprintf (p, buf_size, "%02d'%02d", (int)(offset/3600), (int)(offset%3600)/60); + } + strcat (buf, ")"); + ic->docinfo.create_date = strdup (buf); +} + +cairo_int_status_t +_cairo_pdf_interchange_init (cairo_pdf_surface_t *surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_pdf_outline_entry_t *outline_root; + cairo_int_status_t status; + + _cairo_tag_stack_init (&ic->analysis_tag_stack); + _cairo_tag_stack_init (&ic->render_tag_stack); + ic->struct_root = _cairo_calloc (sizeof(cairo_pdf_struct_tree_node_t)); + if (unlikely (ic->struct_root == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + ic->struct_root->res.id = 0; + cairo_list_init (&ic->struct_root->children); + _cairo_array_init (&ic->struct_root->mcid, sizeof(cairo_pdf_page_mcid_t)); + + ic->current_analyze_node = ic->struct_root; + ic->current_render_node = NULL; + ic->next_page_render_node = ic->struct_root; + _cairo_array_init (&ic->recording_surface_stack, sizeof(cairo_recording_surface_stack_entry_t)); + ic->current_recording_surface_res.id = 0; + ic->command_to_node_map = _cairo_hash_table_create (_cairo_pdf_command_equal); + if (unlikely (ic->command_to_node_map == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + ic->content_tag_map = _cairo_hash_table_create (_cairo_pdf_content_tag_equal); + if (unlikely (ic->content_tag_map == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_array_init (&ic->parent_tree, sizeof(cairo_pdf_resource_t)); + _cairo_array_init (&ic->mcid_to_tree, sizeof(cairo_pdf_struct_tree_node_t *)); + _cairo_array_init (&ic->annots, sizeof(cairo_pdf_annotation_t *)); + ic->parent_tree_res.id = 0; + cairo_list_init (&ic->extents_list); + ic->named_dests = _cairo_hash_table_create (_named_dest_equal); + if (unlikely (ic->named_dests == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_array_init (&ic->page_commands, sizeof(cairo_pdf_command_list_t)); + ic->current_commands = NULL; + _cairo_array_init (&ic->recording_surface_commands, sizeof(cairo_pdf_recording_surface_commands_t)); + + ic->num_dests = 0; + ic->sorted_dests = NULL; + ic->dests_res.id = 0; + ic->ignore_current_surface = FALSE; + ic->content_emitted = FALSE; + ic->marked_content_open = FALSE; + ic->render_next_command_has_content = FALSE; + ic->mcid_order = 0; + + _cairo_array_init (&ic->outline, sizeof(cairo_pdf_outline_entry_t *)); + outline_root = _cairo_calloc (sizeof(cairo_pdf_outline_entry_t)); + if (unlikely (outline_root == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memset (&ic->docinfo, 0, sizeof (ic->docinfo)); + _cairo_array_init (&ic->custom_metadata, sizeof(struct metadata)); + _cairo_pdf_interchange_set_create_date (surface); + status = _cairo_array_append (&ic->outline, &outline_root); + + return status; +} + +static void +_cairo_pdf_interchange_free_outlines (cairo_pdf_surface_t *surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + int num_elems, i; + + num_elems = _cairo_array_num_elements (&ic->outline); + for (i = 0; i < num_elems; i++) { + cairo_pdf_outline_entry_t *outline; + + _cairo_array_copy_element (&ic->outline, i, &outline); + free (outline->name); + _cairo_tag_free_link_attributes (&outline->link_attrs); + free (outline); + } + _cairo_array_fini (&ic->outline); +} + +void +_cairo_pdf_interchange_fini (cairo_pdf_surface_t *surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + unsigned int i, num_elems; + struct metadata *data; + + _cairo_tag_stack_fini (&ic->analysis_tag_stack); + _cairo_tag_stack_fini (&ic->render_tag_stack); + _cairo_array_fini (&ic->mcid_to_tree); + cairo_pdf_interchange_clear_annotations (surface); + _cairo_array_fini (&ic->annots); + + _cairo_array_fini (&ic->recording_surface_stack); + _cairo_array_fini (&ic->parent_tree); + + _cairo_hash_table_foreach (ic->command_to_node_map, + _cairo_pdf_command_pluck, + ic->command_to_node_map); + _cairo_hash_table_destroy (ic->command_to_node_map); + + _cairo_hash_table_foreach (ic->named_dests, _named_dest_pluck, ic->named_dests); + _cairo_hash_table_destroy (ic->named_dests); + + _cairo_hash_table_foreach (ic->content_tag_map, _cairo_pdf_content_tag_pluck, ic->content_tag_map); + _cairo_hash_table_destroy(ic->content_tag_map); + + free_node (ic->struct_root); + + num_elems = _cairo_array_num_elements (&ic->recording_surface_commands); + for (i = 0; i < num_elems; i++) { + cairo_pdf_recording_surface_commands_t *recording_command; + cairo_pdf_command_list_t *command_list; + + recording_command = _cairo_array_index (&ic->recording_surface_commands, i); + command_list = recording_command->command_list; + _cairo_array_fini (&command_list->commands); + free (command_list); + } + _cairo_array_fini (&ic->recording_surface_commands); + + num_elems = _cairo_array_num_elements (&ic->page_commands); + for (i = 0; i < num_elems; i++) { + cairo_pdf_command_list_t *command_list; + command_list = _cairo_array_index (&ic->page_commands, i); + _cairo_array_fini (&command_list->commands); + } + _cairo_array_fini (&ic->page_commands); + + free (ic->sorted_dests); + _cairo_pdf_interchange_free_outlines (surface); + free (ic->docinfo.title); + free (ic->docinfo.author); + free (ic->docinfo.subject); + free (ic->docinfo.keywords); + free (ic->docinfo.creator); + free (ic->docinfo.create_date); + free (ic->docinfo.mod_date); + + num_elems = _cairo_array_num_elements (&ic->custom_metadata); + for (i = 0; i < num_elems; i++) { + data = _cairo_array_index (&ic->custom_metadata, i); + free (data->name); + free (data->value); + } + _cairo_array_fini (&ic->custom_metadata); +} + +cairo_int_status_t +_cairo_pdf_interchange_add_outline (cairo_pdf_surface_t *surface, + int parent_id, + const char *name, + const char *link_attribs, + cairo_pdf_outline_flags_t flags, + int *id) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_pdf_outline_entry_t *outline; + cairo_pdf_outline_entry_t *parent; + cairo_int_status_t status; + + if (parent_id < 0 || parent_id >= (int)_cairo_array_num_elements (&ic->outline)) + return CAIRO_STATUS_SUCCESS; + + outline = _cairo_calloc (sizeof(cairo_pdf_outline_entry_t)); + if (unlikely (outline == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_tag_parse_link_attributes (link_attribs, &outline->link_attrs); + if (unlikely (status)) { + free (outline); + return status; + } + + outline->res = _cairo_pdf_surface_new_object (surface); + if (outline->res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + outline->name = strdup (name); + outline->flags = flags; + outline->count = 0; + + _cairo_array_copy_element (&ic->outline, parent_id, &parent); + + outline->parent = parent; + outline->first_child = NULL; + outline->last_child = NULL; + outline->next = NULL; + if (parent->last_child) { + parent->last_child->next = outline; + outline->prev = parent->last_child; + parent->last_child = outline; + } else { + parent->first_child = outline; + parent->last_child = outline; + outline->prev = NULL; + } + + *id = _cairo_array_num_elements (&ic->outline); + status = _cairo_array_append (&ic->outline, &outline); + if (unlikely (status)) + return status; + + /* Update Count */ + outline = outline->parent; + while (outline) { + if (outline->flags & CAIRO_PDF_OUTLINE_FLAG_OPEN) { + outline->count++; + } else { + outline->count--; + break; + } + outline = outline->parent; + } + + return CAIRO_STATUS_SUCCESS; +} + +/* + * Date must be in the following format: + * + * YYYY-MM-DDThh:mm:ss[Z+-]hh:mm + * + * Only the year is required. If a field is included all preceding + * fields must be included. + */ +static char * +iso8601_to_pdf_date_string (const char *iso) +{ + char buf[40]; + const char *p; + int i; + + /* Check that utf8 contains only the characters "0123456789-T:Z+" */ + p = iso; + while (*p) { + if (!_cairo_isdigit (*p) && *p != '-' && *p != 'T' && + *p != ':' && *p != 'Z' && *p != '+') + return NULL; + p++; + } + + p = iso; + strcpy (buf, "("); + + /* YYYY (required) */ + if (strlen (p) < 4) + return NULL; + + strncat (buf, p, 4); + p += 4; + + /* -MM, -DD, Thh, :mm, :ss */ + for (i = 0; i < 5; i++) { + if (strlen (p) < 3) + goto finish; + + strncat (buf, p + 1, 2); + p += 3; + } + + /* Z, +, - */ + if (strlen (p) < 1) + goto finish; + strncat (buf, p, 1); + p += 1; + + /* hh */ + if (strlen (p) < 2) + goto finish; + + strncat (buf, p, 2); + strcat (buf, "'"); + p += 2; + + /* :mm */ + if (strlen (p) < 3) + goto finish; + + strncat (buf, p + 1, 2); + strcat (buf, "'"); + + finish: + strcat (buf, ")"); + return strdup (buf); +} + +cairo_int_status_t +_cairo_pdf_interchange_set_metadata (cairo_pdf_surface_t *surface, + cairo_pdf_metadata_t metadata, + const char *utf8) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_status_t status; + char *s = NULL; + + if (utf8) { + if (metadata == CAIRO_PDF_METADATA_CREATE_DATE || + metadata == CAIRO_PDF_METADATA_MOD_DATE) { + s = iso8601_to_pdf_date_string (utf8); + } else { + status = _cairo_utf8_to_pdf_string (utf8, &s); + if (unlikely (status)) + return status; + } + } + + switch (metadata) { + case CAIRO_PDF_METADATA_TITLE: + free (ic->docinfo.title); + ic->docinfo.title = s; + break; + case CAIRO_PDF_METADATA_AUTHOR: + free (ic->docinfo.author); + ic->docinfo.author = s; + break; + case CAIRO_PDF_METADATA_SUBJECT: + free (ic->docinfo.subject); + ic->docinfo.subject = s; + break; + case CAIRO_PDF_METADATA_KEYWORDS: + free (ic->docinfo.keywords); + ic->docinfo.keywords = s; + break; + case CAIRO_PDF_METADATA_CREATOR: + free (ic->docinfo.creator); + ic->docinfo.creator = s; + break; + case CAIRO_PDF_METADATA_CREATE_DATE: + free (ic->docinfo.create_date); + ic->docinfo.create_date = s; + break; + case CAIRO_PDF_METADATA_MOD_DATE: + free (ic->docinfo.mod_date); + ic->docinfo.mod_date = s; + break; + } + + return CAIRO_STATUS_SUCCESS; +} + +static const char *reserved_metadata_names[] = { + "", + "Title", + "Author", + "Subject", + "Keywords", + "Creator", + "Producer", + "CreationDate", + "ModDate", + "Trapped", +}; + +cairo_int_status_t +_cairo_pdf_interchange_set_custom_metadata (cairo_pdf_surface_t *surface, + const char *name, + const char *value) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + struct metadata *data; + struct metadata new_data; + int i, num_elems; + cairo_int_status_t status; + char *s = NULL; + + if (name == NULL) + return CAIRO_STATUS_NULL_POINTER; + + for (i = 0; i < ARRAY_LENGTH (reserved_metadata_names); i++) { + if (strcmp(name, reserved_metadata_names[i]) == 0) + return CAIRO_STATUS_INVALID_STRING; + } + + /* First check if we already have an entry for this name. If so, + * update the value. A NULL value means the entry has been removed + * and will not be emitted. */ + num_elems = _cairo_array_num_elements (&ic->custom_metadata); + for (i = 0; i < num_elems; i++) { + data = _cairo_array_index (&ic->custom_metadata, i); + if (strcmp(name, data->name) == 0) { + free (data->value); + data->value = NULL; + if (value && strlen(value)) { + status = _cairo_utf8_to_pdf_string (value, &s); + if (unlikely (status)) + return status; + data->value = s; + } + return CAIRO_STATUS_SUCCESS; + } + } + + /* Add new entry */ + status = CAIRO_STATUS_SUCCESS; + if (value && strlen(value)) { + new_data.name = strdup (name); + status = _cairo_utf8_to_pdf_string (value, &s); + if (unlikely (status)) { + free (new_data.name); + return status; + } + new_data.value = s; + status = _cairo_array_append (&ic->custom_metadata, &new_data); + } + + return status; +} + +#if DEBUG_PDF_INTERCHANGE +static cairo_int_status_t +print_node (cairo_pdf_surface_t *surface, + cairo_pdf_struct_tree_node_t *node, + int depth) +{ + if (node == NULL) { + printf("%*sNode: ptr: NULL\n", depth*2, ""); + } else if (node == surface->interchange.struct_root) { + printf("%*sNode: ptr: %p root\n", depth*2, "", node); + } else { + printf("%*sNode: ptr: %p name: '%s'\n", depth*2, "", node, node->name); + } + depth++; + printf("%*sType: ", depth*2, ""); + switch (node->type) { + case PDF_NODE_STRUCT: + printf("STRUCT\n"); + break; + case PDF_NODE_CONTENT: + printf("CONTENT\n"); + printf("%*sContent.id: %s\n", depth*2, "", node->attributes.content.id); + printf("%*sContent.tag_name: %s\n", depth*2, "", node->attributes.content.tag_name); + break; + case PDF_NODE_CONTENT_REF: + printf("CONTENT_REF\n"); + printf("%*sContent_Ref.ref: %s\n", depth*2, "", node->attributes.content_ref.ref); + break; + case PDF_NODE_ARTIFACT: + printf("ARTIFACT\n"); + break; + } + printf("%*sres: %d\n", depth*2, "", node->res.id); + printf("%*sparent: %p\n", depth*2, "", node->parent); + printf("%*sannot:", depth*2, ""); + if (node->annot) + printf(" node: %p res: %d", node->annot->node, node->annot->res.id); + printf("\n"); + printf("%*sextents: ", depth*2, ""); + if (node->extents.valid) { + printf("x: %d y: %d w: %d h: %d\n", + node->extents.extents.x, + node->extents.extents.y, + node->extents.extents.width, + node->extents.extents.height); + } else { + printf("not valid\n"); + } + + printf("%*smcid: ", depth*2, ""); + int num_mcid = _cairo_array_num_elements (&node->mcid); + for (int i = 0; i < num_mcid; i++) { + cairo_pdf_page_mcid_t *mcid_elem = _cairo_array_index (&node->mcid, i); + if (mcid_elem->child_node) { + printf("(order: %d, %p) ", mcid_elem->order, mcid_elem->child_node); + } else { + printf("(order: %d, pg: %d, xobject_res: %d, mcid: %d) ", + mcid_elem->order, mcid_elem->page, mcid_elem->xobject_res.id, mcid_elem->mcid); + } + } + printf("\n"); + return CAIRO_STATUS_SUCCESS; +} + +static void +print_tree (cairo_pdf_surface_t *surface, + cairo_pdf_struct_tree_node_t *node) +{ + printf("Structure Tree:\n"); + cairo_pdf_interchange_walk_struct_tree (surface, node, 0, print_node); +} + +static void +print_command (cairo_pdf_command_t *command, int indent) +{ + printf("%*s%d ", indent*2, "", command->command_id); + switch (command->flags) { + case PDF_CONTENT: + printf("CONTENT"); + break; + case PDF_BEGIN: + printf("BEGIN"); + break; + case PDF_END: + printf("END"); + break; + case PDF_GROUP: + printf("GROUP: %p", command->group); + break; + case PDF_NONE: + printf("NONE"); + break; + } + printf(" node: %p index: %d\n", command->node, command->mcid_index); +} + +static void +print_commands (cairo_pdf_command_list_t *command_list, int indent) +{ + cairo_pdf_command_t *command; + unsigned i; + unsigned num_elements = _cairo_array_num_elements (&command_list->commands); + + for (i = 0; i < num_elements; i++) { + command = _cairo_array_index (&command_list->commands, i); + print_command (command, indent); + if (command->flags == PDF_GROUP) + print_commands (command->group, indent + 1); + } +} + +static void +print_command_list(cairo_pdf_command_list_t *command_list) +{ + printf("Command List: %p\n", command_list); + print_commands (command_list, 0); + printf("end\n"); +} +#endif diff --git a/local/recipes/libs/cairo/source/src/cairo-pdf-operators-private.h b/local/recipes/libs/cairo/source/src/cairo-pdf-operators-private.h new file mode 100644 index 0000000000..ed8be7f96e --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-pdf-operators-private.h @@ -0,0 +1,184 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 Red Hat, Inc + * Copyright © 2006 Red Hat, Inc + * Copyright © 2007 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Kristian Høgsberg + * Carl Worth + * Adrian Johnson + */ + +#ifndef CAIRO_PDF_OPERATORS_H +#define CAIRO_PDF_OPERATORS_H + +#include "cairo-compiler-private.h" +#include "cairo-error-private.h" +#include "cairo-types-private.h" + +/* The glyph buffer size is based on the expected maximum glyphs in a + * line so that an entire line can be emitted in as one string. If the + * glyphs in a line exceeds this size the only downside is the slight + * overhead of emitting two strings. + */ +#define PDF_GLYPH_BUFFER_SIZE 200 + +typedef cairo_int_status_t +(*cairo_pdf_operators_use_font_subset_t) (unsigned int font_id, + unsigned int subset_id, + void *closure); + +typedef struct _cairo_pdf_glyph { + unsigned int glyph_index; + double x_position; + double x_advance; +} cairo_pdf_glyph_t; + +typedef struct _cairo_pdf_operators { + cairo_output_stream_t *stream; + cairo_matrix_t cairo_to_pdf; + cairo_scaled_font_subsets_t *font_subsets; + cairo_pdf_operators_use_font_subset_t use_font_subset; + void *use_font_subset_closure; + cairo_bool_t ps_output; /* output is for PostScript */ + cairo_bool_t use_actual_text; + cairo_bool_t in_text_object; /* inside BT/ET pair */ + + /* PDF text state */ + cairo_bool_t is_new_text_object; /* text object started but matrix and font not yet selected */ + unsigned int font_id; + unsigned int subset_id; + cairo_matrix_t text_matrix; /* PDF text matrix (Tlm in the PDF reference) */ + cairo_matrix_t cairo_to_pdftext; /* translate cairo coords to PDF text space */ + cairo_matrix_t font_matrix_inverse; + double cur_x; /* Current position in PDF text space (Tm in the PDF reference) */ + double cur_y; + int hex_width; + cairo_bool_t is_latin; + int num_glyphs; + double glyph_buf_x_pos; + cairo_pdf_glyph_t glyphs[PDF_GLYPH_BUFFER_SIZE]; + + /* PDF line style */ + cairo_bool_t has_line_style; + double line_width; + cairo_line_cap_t line_cap; + cairo_line_join_t line_join; + double miter_limit; + cairo_bool_t has_dashes; +} cairo_pdf_operators_t; + +cairo_private void +_cairo_pdf_operators_init (cairo_pdf_operators_t *pdf_operators, + cairo_output_stream_t *stream, + cairo_matrix_t *cairo_to_pdf, + cairo_scaled_font_subsets_t *font_subsets, + cairo_bool_t ps); + +cairo_private cairo_status_t +_cairo_pdf_operators_fini (cairo_pdf_operators_t *pdf_operators); + +cairo_private void +_cairo_pdf_operators_set_font_subsets_callback (cairo_pdf_operators_t *pdf_operators, + cairo_pdf_operators_use_font_subset_t use_font_subset, + void *closure); + +cairo_private void +_cairo_pdf_operators_set_stream (cairo_pdf_operators_t *pdf_operators, + cairo_output_stream_t *stream); + + +cairo_private void +_cairo_pdf_operators_set_cairo_to_pdf_matrix (cairo_pdf_operators_t *pdf_operators, + cairo_matrix_t *cairo_to_pdf); + +cairo_private void +_cairo_pdf_operators_enable_actual_text (cairo_pdf_operators_t *pdf_operators, + cairo_bool_t enable); + +cairo_private cairo_status_t +_cairo_pdf_operators_flush (cairo_pdf_operators_t *pdf_operators); + +cairo_private void +_cairo_pdf_operators_reset (cairo_pdf_operators_t *pdf_operators); + +cairo_private cairo_int_status_t +_cairo_pdf_operators_clip (cairo_pdf_operators_t *pdf_operators, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule); + +cairo_private cairo_int_status_t +_cairo_pdf_operators_emit_stroke_style (cairo_pdf_operators_t *pdf_operators, + const cairo_stroke_style_t *style, + double scale); + +cairo_private cairo_int_status_t +_cairo_pdf_operators_stroke (cairo_pdf_operators_t *pdf_operators, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse); + +cairo_private cairo_int_status_t +_cairo_pdf_operators_fill (cairo_pdf_operators_t *pdf_operators, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule); + +cairo_private cairo_int_status_t +_cairo_pdf_operators_fill_stroke (cairo_pdf_operators_t *pdf_operators, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse); + +cairo_private cairo_int_status_t +_cairo_pdf_operators_show_text_glyphs (cairo_pdf_operators_t *pdf_operators, + const char *utf8, + int utf8_len, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font); + +cairo_private cairo_int_status_t +_cairo_pdf_operators_tag_begin (cairo_pdf_operators_t *pdf_operators, + const char *tag_name, + int mcid); + +cairo_private cairo_int_status_t +_cairo_pdf_operators_tag_end (cairo_pdf_operators_t *pdf_operators); + +#endif /* CAIRO_PDF_OPERATORS_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-pdf-operators.c b/local/recipes/libs/cairo/source/src/cairo-pdf-operators.c new file mode 100644 index 0000000000..7bed413104 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-pdf-operators.c @@ -0,0 +1,1601 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 Red Hat, Inc + * Copyright © 2006 Red Hat, Inc + * Copyright © 2007, 2008 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Kristian Høgsberg + * Carl Worth + * Adrian Johnson + */ + +#include "cairoint.h" + +#if CAIRO_HAS_PDF_OPERATORS + +#include "cairo-error-private.h" +#include "cairo-pdf-operators-private.h" +#include "cairo-path-fixed-private.h" +#include "cairo-output-stream-private.h" +#include "cairo-scaled-font-subsets-private.h" + +static cairo_status_t +_cairo_pdf_operators_end_text (cairo_pdf_operators_t *pdf_operators); + + +void +_cairo_pdf_operators_init (cairo_pdf_operators_t *pdf_operators, + cairo_output_stream_t *stream, + cairo_matrix_t *cairo_to_pdf, + cairo_scaled_font_subsets_t *font_subsets, + cairo_bool_t ps) +{ + pdf_operators->stream = stream; + pdf_operators->cairo_to_pdf = *cairo_to_pdf; + pdf_operators->font_subsets = font_subsets; + pdf_operators->ps_output = ps; + pdf_operators->use_font_subset = NULL; + pdf_operators->use_font_subset_closure = NULL; + pdf_operators->in_text_object = FALSE; + pdf_operators->num_glyphs = 0; + pdf_operators->has_line_style = FALSE; + pdf_operators->use_actual_text = FALSE; +} + +cairo_status_t +_cairo_pdf_operators_fini (cairo_pdf_operators_t *pdf_operators) +{ + return _cairo_pdf_operators_flush (pdf_operators); +} + +void +_cairo_pdf_operators_set_font_subsets_callback (cairo_pdf_operators_t *pdf_operators, + cairo_pdf_operators_use_font_subset_t use_font_subset, + void *closure) +{ + pdf_operators->use_font_subset = use_font_subset; + pdf_operators->use_font_subset_closure = closure; +} + +/* Change the output stream to a different stream. + * _cairo_pdf_operators_flush() should always be called before calling + * this function. + */ +void +_cairo_pdf_operators_set_stream (cairo_pdf_operators_t *pdf_operators, + cairo_output_stream_t *stream) +{ + pdf_operators->stream = stream; + pdf_operators->has_line_style = FALSE; +} + +void +_cairo_pdf_operators_set_cairo_to_pdf_matrix (cairo_pdf_operators_t *pdf_operators, + cairo_matrix_t *cairo_to_pdf) +{ + pdf_operators->cairo_to_pdf = *cairo_to_pdf; + pdf_operators->has_line_style = FALSE; +} + +cairo_private void +_cairo_pdf_operators_enable_actual_text (cairo_pdf_operators_t *pdf_operators, + cairo_bool_t enable) +{ + pdf_operators->use_actual_text = enable; +} + +/* Finish writing out any pending commands to the stream. This + * function must be called by the surface before emitting anything + * into the PDF stream. + * + * pdf_operators may leave the emitted PDF for some operations + * unfinished in case subsequent operations can be merged. This + * function will finish off any incomplete operation so the stream + * will be in a state where the surface may emit its own PDF + * operations (eg changing patterns). + * + */ +cairo_status_t +_cairo_pdf_operators_flush (cairo_pdf_operators_t *pdf_operators) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + if (pdf_operators->in_text_object) + status = _cairo_pdf_operators_end_text (pdf_operators); + + return status; +} + +/* Reset the known graphics state of the PDF consumer. ie no + * assumptions will be made about the state. The next time a + * particular graphics state is required (eg line width) the state + * operator is always emitted and then remembered for subsequent + * operations. + * + * This should be called when starting a new stream or after emitting + * the 'Q' operator (where pdf-operators functions were called inside + * the q/Q pair). + */ +void +_cairo_pdf_operators_reset (cairo_pdf_operators_t *pdf_operators) +{ + pdf_operators->has_line_style = FALSE; +} + +/* A word wrap stream can be used as a filter to do word wrapping on + * top of an existing output stream. The word wrapping is quite + * simple, using isspace to determine characters that separate + * words. Any word that will cause the column count exceed the given + * max_column will have a '\n' character emitted before it. + * + * The stream is careful to maintain integrity for words that cross + * the boundary from one call to write to the next. + * + * Note: This stream does not guarantee that the output will never + * exceed max_column. In particular, if a single word is larger than + * max_column it will not be broken up. + */ + +typedef enum _cairo_word_wrap_state { + WRAP_STATE_DELIMITER, + WRAP_STATE_WORD, + WRAP_STATE_STRING, + WRAP_STATE_HEXSTRING +} cairo_word_wrap_state_t; + + +typedef struct _word_wrap_stream { + cairo_output_stream_t base; + cairo_output_stream_t *output; + int max_column; + cairo_bool_t ps_output; + int column; + cairo_word_wrap_state_t state; + cairo_bool_t in_escape; + int escape_digits; +} word_wrap_stream_t; + + + +/* Emit word bytes up to the next delimiter character */ +static int +_word_wrap_stream_count_word_up_to (word_wrap_stream_t *stream, + const unsigned char *data, int length) +{ + const unsigned char *s = data; + int count = 0; + + while (length--) { + if (_cairo_isspace (*s) || *s == '<' || *s == '(') { + stream->state = WRAP_STATE_DELIMITER; + break; + } + + count++; + stream->column++; + s++; + } + + if (count) + _cairo_output_stream_write (stream->output, data, count); + + return count; +} + + +/* Emit hexstring bytes up to either the end of the ASCII hexstring or the number + * of columns remaining. + */ +static int +_word_wrap_stream_count_hexstring_up_to (word_wrap_stream_t *stream, + const unsigned char *data, int length) +{ + const unsigned char *s = data; + int count = 0; + cairo_bool_t newline = FALSE; + + while (length--) { + count++; + stream->column++; + if (*s == '>') { + stream->state = WRAP_STATE_DELIMITER; + break; + } + + if (stream->column > stream->max_column) { + newline = TRUE; + break; + } + s++; + } + + if (count) + _cairo_output_stream_write (stream->output, data, count); + + if (newline) { + _cairo_output_stream_printf (stream->output, "\n"); + stream->column = 0; + } + + return count; +} + +/* Count up to either the end of the string or the number of columns + * remaining. + */ +static int +_word_wrap_stream_count_string_up_to (word_wrap_stream_t *stream, + const unsigned char *data, int length) +{ + const unsigned char *s = data; + int count = 0; + cairo_bool_t newline = FALSE; + + while (length--) { + count++; + stream->column++; + if (!stream->in_escape) { + if (*s == ')') { + stream->state = WRAP_STATE_DELIMITER; + break; + } + if (*s == '\\') { + stream->in_escape = TRUE; + stream->escape_digits = 0; + } else if (stream->ps_output && stream->column > stream->max_column) { + newline = TRUE; + break; + } + } else { + if (!_cairo_isdigit(*s) || ++stream->escape_digits == 3) + stream->in_escape = FALSE; + } + s++; + } + + if (count) + _cairo_output_stream_write (stream->output, data, count); + + if (newline) { + _cairo_output_stream_printf (stream->output, "\\\n"); + stream->column = 0; + } + + return count; +} + +static cairo_status_t +_word_wrap_stream_write (cairo_output_stream_t *base, + const unsigned char *data, + unsigned int length) +{ + word_wrap_stream_t *stream = (word_wrap_stream_t *) base; + int count; + + while (length) { + switch (stream->state) { + case WRAP_STATE_WORD: + count = _word_wrap_stream_count_word_up_to (stream, data, length); + break; + case WRAP_STATE_HEXSTRING: + count = _word_wrap_stream_count_hexstring_up_to (stream, data, length); + break; + case WRAP_STATE_STRING: + count = _word_wrap_stream_count_string_up_to (stream, data, length); + break; + case WRAP_STATE_DELIMITER: + count = 1; + stream->column++; + if (*data == '\n' || stream->column >= stream->max_column) { + _cairo_output_stream_printf (stream->output, "\n"); + stream->column = 0; + } + if (*data == '<') { + stream->state = WRAP_STATE_HEXSTRING; + } else if (*data == '(') { + stream->state = WRAP_STATE_STRING; + } else if (!_cairo_isspace (*data)) { + stream->state = WRAP_STATE_WORD; + } + if (*data != '\n') + _cairo_output_stream_write (stream->output, data, 1); + break; + + default: + ASSERT_NOT_REACHED; + count = length; + break; + } + data += count; + length -= count; + } + + return _cairo_output_stream_get_status (stream->output); +} + +static cairo_status_t +_word_wrap_stream_close (cairo_output_stream_t *base) +{ + word_wrap_stream_t *stream = (word_wrap_stream_t *) base; + + return _cairo_output_stream_get_status (stream->output); +} + +static cairo_output_stream_t * +_word_wrap_stream_create (cairo_output_stream_t *output, cairo_bool_t ps, int max_column) +{ + word_wrap_stream_t *stream; + + if (output->status) + return _cairo_output_stream_create_in_error (output->status); + + stream = _cairo_calloc (sizeof (word_wrap_stream_t)); + if (unlikely (stream == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_output_stream_t *) &_cairo_output_stream_nil; + } + + _cairo_output_stream_init (&stream->base, + _word_wrap_stream_write, + NULL, + _word_wrap_stream_close); + stream->output = output; + stream->max_column = max_column; + stream->ps_output = ps; + stream->column = 0; + stream->state = WRAP_STATE_DELIMITER; + stream->in_escape = FALSE; + stream->escape_digits = 0; + + return &stream->base; +} + +typedef struct _pdf_path_info { + cairo_output_stream_t *output; + cairo_matrix_t *path_transform; + cairo_line_cap_t line_cap; + cairo_point_t last_move_to_point; + cairo_bool_t has_sub_path; +} pdf_path_info_t; + +static cairo_status_t +_cairo_pdf_path_move_to (void *closure, + const cairo_point_t *point) +{ + pdf_path_info_t *info = closure; + double x = _cairo_fixed_to_double (point->x); + double y = _cairo_fixed_to_double (point->y); + + info->last_move_to_point = *point; + info->has_sub_path = FALSE; + cairo_matrix_transform_point (info->path_transform, &x, &y); + _cairo_output_stream_printf (info->output, + "%g %g m ", x, y); + + return _cairo_output_stream_get_status (info->output); +} + +static cairo_status_t +_cairo_pdf_path_line_to (void *closure, + const cairo_point_t *point) +{ + pdf_path_info_t *info = closure; + double x = _cairo_fixed_to_double (point->x); + double y = _cairo_fixed_to_double (point->y); + + if (info->line_cap != CAIRO_LINE_CAP_ROUND && + ! info->has_sub_path && + point->x == info->last_move_to_point.x && + point->y == info->last_move_to_point.y) + { + return CAIRO_STATUS_SUCCESS; + } + + info->has_sub_path = TRUE; + cairo_matrix_transform_point (info->path_transform, &x, &y); + _cairo_output_stream_printf (info->output, + "%g %g l ", x, y); + + return _cairo_output_stream_get_status (info->output); +} + +static cairo_status_t +_cairo_pdf_path_curve_to (void *closure, + const cairo_point_t *b, + const cairo_point_t *c, + const cairo_point_t *d) +{ + pdf_path_info_t *info = closure; + double bx = _cairo_fixed_to_double (b->x); + double by = _cairo_fixed_to_double (b->y); + double cx = _cairo_fixed_to_double (c->x); + double cy = _cairo_fixed_to_double (c->y); + double dx = _cairo_fixed_to_double (d->x); + double dy = _cairo_fixed_to_double (d->y); + + info->has_sub_path = TRUE; + cairo_matrix_transform_point (info->path_transform, &bx, &by); + cairo_matrix_transform_point (info->path_transform, &cx, &cy); + cairo_matrix_transform_point (info->path_transform, &dx, &dy); + _cairo_output_stream_printf (info->output, + "%g %g %g %g %g %g c ", + bx, by, cx, cy, dx, dy); + return _cairo_output_stream_get_status (info->output); +} + +static cairo_status_t +_cairo_pdf_path_close_path (void *closure) +{ + pdf_path_info_t *info = closure; + + if (info->line_cap != CAIRO_LINE_CAP_ROUND && + ! info->has_sub_path) + { + return CAIRO_STATUS_SUCCESS; + } + + _cairo_output_stream_printf (info->output, + "h\n"); + + return _cairo_output_stream_get_status (info->output); +} + +static cairo_status_t +_cairo_pdf_path_rectangle (pdf_path_info_t *info, cairo_box_t *box) +{ + double x1 = _cairo_fixed_to_double (box->p1.x); + double y1 = _cairo_fixed_to_double (box->p1.y); + double x2 = _cairo_fixed_to_double (box->p2.x); + double y2 = _cairo_fixed_to_double (box->p2.y); + + cairo_matrix_transform_point (info->path_transform, &x1, &y1); + cairo_matrix_transform_point (info->path_transform, &x2, &y2); + _cairo_output_stream_printf (info->output, + "%g %g %g %g re ", + x1, y1, x2 - x1, y2 - y1); + + return _cairo_output_stream_get_status (info->output); +} + +/* The line cap value is needed to workaround the fact that PostScript + * and PDF semantics for stroking degenerate sub-paths do not match + * cairo semantics. (PostScript draws something for any line cap + * value, while cairo draws something only for round caps). + * + * When using this function to emit a path to be filled, rather than + * stroked, simply pass %CAIRO_LINE_CAP_ROUND which will guarantee that + * the stroke workaround will not modify the path being emitted. + */ +static cairo_status_t +_cairo_pdf_operators_emit_path (cairo_pdf_operators_t *pdf_operators, + const cairo_path_fixed_t*path, + cairo_matrix_t *path_transform, + cairo_line_cap_t line_cap) +{ + cairo_output_stream_t *word_wrap; + cairo_status_t status, status2; + pdf_path_info_t info; + cairo_box_t box; + + word_wrap = _word_wrap_stream_create (pdf_operators->stream, pdf_operators->ps_output, 72); + status = _cairo_output_stream_get_status (word_wrap); + if (unlikely (status)) + return _cairo_output_stream_destroy (word_wrap); + + info.output = word_wrap; + info.path_transform = path_transform; + info.line_cap = line_cap; + if (_cairo_path_fixed_is_rectangle (path, &box) && + ((path_transform->xx == 0 && path_transform->yy == 0) || + (path_transform->xy == 0 && path_transform->yx == 0))) { + status = _cairo_pdf_path_rectangle (&info, &box); + } else { + status = _cairo_path_fixed_interpret (path, + _cairo_pdf_path_move_to, + _cairo_pdf_path_line_to, + _cairo_pdf_path_curve_to, + _cairo_pdf_path_close_path, + &info); + } + + status2 = _cairo_output_stream_destroy (word_wrap); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + + return status; +} + +cairo_int_status_t +_cairo_pdf_operators_clip (cairo_pdf_operators_t *pdf_operators, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule) +{ + const char *pdf_operator; + cairo_status_t status; + + if (pdf_operators->in_text_object) { + status = _cairo_pdf_operators_end_text (pdf_operators); + if (unlikely (status)) + return status; + } + + if (! path->has_current_point) { + /* construct an empty path */ + _cairo_output_stream_printf (pdf_operators->stream, "0 0 m "); + } else { + status = _cairo_pdf_operators_emit_path (pdf_operators, + path, + &pdf_operators->cairo_to_pdf, + CAIRO_LINE_CAP_ROUND); + if (unlikely (status)) + return status; + } + + switch (fill_rule) { + default: + ASSERT_NOT_REACHED; + case CAIRO_FILL_RULE_WINDING: + pdf_operator = "W"; + break; + case CAIRO_FILL_RULE_EVEN_ODD: + pdf_operator = "W*"; + break; + } + + _cairo_output_stream_printf (pdf_operators->stream, + "%s n\n", + pdf_operator); + + return _cairo_output_stream_get_status (pdf_operators->stream); +} + +static int +_cairo_pdf_line_cap (cairo_line_cap_t cap) +{ + switch (cap) { + case CAIRO_LINE_CAP_BUTT: + return 0; + case CAIRO_LINE_CAP_ROUND: + return 1; + case CAIRO_LINE_CAP_SQUARE: + return 2; + default: + ASSERT_NOT_REACHED; + return 0; + } +} + +static int +_cairo_pdf_line_join (cairo_line_join_t join) +{ + switch (join) { + case CAIRO_LINE_JOIN_MITER: + return 0; + case CAIRO_LINE_JOIN_ROUND: + return 1; + case CAIRO_LINE_JOIN_BEVEL: + return 2; + default: + ASSERT_NOT_REACHED; + return 0; + } +} + +cairo_int_status_t +_cairo_pdf_operators_emit_stroke_style (cairo_pdf_operators_t *pdf_operators, + const cairo_stroke_style_t *style, + double scale) +{ + double *dash = style->dash; + int num_dashes = style->num_dashes; + double dash_offset = style->dash_offset; + double line_width = style->line_width * scale; + + /* PostScript has "special needs" when it comes to zero-length + * dash segments with butt caps. It apparently (at least + * according to ghostscript) draws hairlines for this + * case. That's not what the cairo semantics want, so we first + * touch up the array to eliminate any 0.0 values that will + * result in "on" segments. + */ + if (num_dashes && style->line_cap == CAIRO_LINE_CAP_BUTT) { + int i; + + /* If there's an odd number of dash values they will each get + * interpreted as both on and off. So we first explicitly + * expand the array to remove the duplicate usage so that we + * can modify some of the values. + */ + if (num_dashes % 2) { + dash = _cairo_malloc_abc (num_dashes, 2, sizeof (double)); + if (unlikely (dash == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memcpy (dash, style->dash, num_dashes * sizeof (double)); + memcpy (dash + num_dashes, style->dash, num_dashes * sizeof (double)); + + num_dashes *= 2; + } + + for (i = 0; i < num_dashes; i += 2) { + if (dash[i] == 0.0) { + /* Do not modify the dashes in-place, as we may need to also + * replay this stroke to an image fallback. + */ + if (dash == style->dash) { + dash = _cairo_malloc_ab (num_dashes, sizeof (double)); + if (unlikely (dash == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + memcpy (dash, style->dash, num_dashes * sizeof (double)); + } + + /* If we're at the front of the list, we first rotate + * two elements from the end of the list to the front + * of the list before folding away the 0.0. Or, if + * there are only two dash elements, then there is + * nothing at all to draw. + */ + if (i == 0) { + double last_two[2]; + + if (num_dashes == 2) { + free (dash); + return CAIRO_INT_STATUS_NOTHING_TO_DO; + } + + /* The cases of num_dashes == 0, 1, or 3 elements + * cannot exist, so the rotation of 2 elements + * will always be safe */ + memcpy (last_two, dash + num_dashes - 2, sizeof (last_two)); + memmove (dash + 2, dash, (num_dashes - 2) * sizeof (double)); + memcpy (dash, last_two, sizeof (last_two)); + dash_offset += dash[0] + dash[1]; + i = 2; + } + dash[i-1] += dash[i+1]; + num_dashes -= 2; + memmove (dash + i, dash + i + 2, (num_dashes - i) * sizeof (double)); + /* If we might have just rotated, it's possible that + * we rotated a 0.0 value to the front of the list. + * Set i to -2 so it will get incremented to 0. */ + if (i == 2) + i = -2; + } + } + } + + if (!pdf_operators->has_line_style || pdf_operators->line_width != line_width) { + _cairo_output_stream_printf (pdf_operators->stream, + "%f w\n", + line_width); + pdf_operators->line_width = line_width; + } + + if (!pdf_operators->has_line_style || pdf_operators->line_cap != style->line_cap) { + _cairo_output_stream_printf (pdf_operators->stream, + "%d J\n", + _cairo_pdf_line_cap (style->line_cap)); + pdf_operators->line_cap = style->line_cap; + } + + if (!pdf_operators->has_line_style || pdf_operators->line_join != style->line_join) { + _cairo_output_stream_printf (pdf_operators->stream, + "%d j\n", + _cairo_pdf_line_join (style->line_join)); + pdf_operators->line_join = style->line_join; + } + + if (num_dashes) { + int d; + + _cairo_output_stream_printf (pdf_operators->stream, "["); + for (d = 0; d < num_dashes; d++) + _cairo_output_stream_printf (pdf_operators->stream, " %f", dash[d] * scale); + _cairo_output_stream_printf (pdf_operators->stream, "] %f d\n", + dash_offset * scale); + pdf_operators->has_dashes = TRUE; + } else if (!pdf_operators->has_line_style || pdf_operators->has_dashes) { + _cairo_output_stream_printf (pdf_operators->stream, "[] 0.0 d\n"); + pdf_operators->has_dashes = FALSE; + } + if (dash != style->dash) + free (dash); + + if (!pdf_operators->has_line_style || pdf_operators->miter_limit != style->miter_limit) { + _cairo_output_stream_printf (pdf_operators->stream, + "%f M ", + style->miter_limit < 1.0 ? 1.0 : style->miter_limit); + pdf_operators->miter_limit = style->miter_limit; + } + pdf_operators->has_line_style = TRUE; + + return _cairo_output_stream_get_status (pdf_operators->stream); +} + +/* Scale the matrix so the largest absolute value of the non + * translation components is 1.0. Return the scale required to restore + * the matrix to the original values. + * + * eg the matrix [ 100 0 0 50 20 10 ] + * + * is rescaled to [ 1 0 0 0.5 0.2 0.1 ] + * and the scale returned is 100 + */ +static void +_cairo_matrix_factor_out_scale (cairo_matrix_t *m, double *scale) +{ + double s; + + s = fabs (m->xx); + if (fabs (m->xy) > s) + s = fabs (m->xy); + if (fabs (m->yx) > s) + s = fabs (m->yx); + if (fabs (m->yy) > s) + s = fabs (m->yy); + *scale = s; + s = 1.0/s; + cairo_matrix_scale (m, s, s); +} + +static cairo_int_status_t +_cairo_pdf_operators_emit_stroke (cairo_pdf_operators_t *pdf_operators, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + const char *pdf_operator) +{ + cairo_int_status_t status; + cairo_matrix_t m, path_transform; + cairo_bool_t has_ctm = TRUE; + double scale = 1.0; + + if (pdf_operators->in_text_object) { + status = _cairo_pdf_operators_end_text (pdf_operators); + if (unlikely (status)) + return status; + } + + /* Optimize away the stroke ctm when it does not affect the + * stroke. There are other ctm cases that could be optimized + * however this is the most common. + */ + if (fabs(ctm->xx) == 1.0 && fabs(ctm->yy) == 1.0 && + fabs(ctm->xy) == 0.0 && fabs(ctm->yx) == 0.0) + { + has_ctm = FALSE; + } + + /* The PDF CTM is transformed to the user space CTM when stroking + * so the correct pen shape will be used. This also requires that + * the path be transformed to user space when emitted. The + * conversion of path coordinates to user space may cause rounding + * errors. For example the device space point (1.234, 3.142) when + * transformed to a user space CTM of [100 0 0 100 0 0] will be + * emitted as (0.012, 0.031). + * + * To avoid the rounding problem we scale the user space CTM + * matrix so that all the non translation components of the matrix + * are <= 1. The line width and and dashes are scaled by the + * inverse of the scale applied to the CTM. This maintains the + * shape of the stroke pen while keeping the user space CTM within + * the range that maximizes the precision of the emitted path. + */ + if (has_ctm) { + m = *ctm; + /* Zero out the translation since it does not affect the pen + * shape however it may cause unnecessary digits to be emitted. + */ + m.x0 = 0.0; + m.y0 = 0.0; + _cairo_matrix_factor_out_scale (&m, &scale); + path_transform = m; + status = cairo_matrix_invert (&path_transform); + if (unlikely (status)) + return status; + + cairo_matrix_multiply (&m, &m, &pdf_operators->cairo_to_pdf); + } + + status = _cairo_pdf_operators_emit_stroke_style (pdf_operators, style, scale); + if (status == CAIRO_INT_STATUS_NOTHING_TO_DO) + return CAIRO_STATUS_SUCCESS; + if (unlikely (status)) + return status; + + if (has_ctm) { + _cairo_output_stream_printf (pdf_operators->stream, "q "); + _cairo_output_stream_print_matrix (pdf_operators->stream, &m); + _cairo_output_stream_printf (pdf_operators->stream, " cm\n"); + } else { + path_transform = pdf_operators->cairo_to_pdf; + } + + status = _cairo_pdf_operators_emit_path (pdf_operators, + path, + &path_transform, + style->line_cap); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (pdf_operators->stream, "%s", pdf_operator); + if (has_ctm) + _cairo_output_stream_printf (pdf_operators->stream, " Q"); + + _cairo_output_stream_printf (pdf_operators->stream, "\n"); + + return _cairo_output_stream_get_status (pdf_operators->stream); +} + +cairo_int_status_t +_cairo_pdf_operators_stroke (cairo_pdf_operators_t *pdf_operators, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse) +{ + return _cairo_pdf_operators_emit_stroke (pdf_operators, + path, + style, + ctm, + ctm_inverse, + "S"); +} + +cairo_int_status_t +_cairo_pdf_operators_fill (cairo_pdf_operators_t *pdf_operators, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule) +{ + const char *pdf_operator; + cairo_status_t status; + + if (pdf_operators->in_text_object) { + status = _cairo_pdf_operators_end_text (pdf_operators); + if (unlikely (status)) + return status; + } + + status = _cairo_pdf_operators_emit_path (pdf_operators, + path, + &pdf_operators->cairo_to_pdf, + CAIRO_LINE_CAP_ROUND); + if (unlikely (status)) + return status; + + switch (fill_rule) { + default: + ASSERT_NOT_REACHED; + case CAIRO_FILL_RULE_WINDING: + pdf_operator = "f"; + break; + case CAIRO_FILL_RULE_EVEN_ODD: + pdf_operator = "f*"; + break; + } + + _cairo_output_stream_printf (pdf_operators->stream, + "%s\n", + pdf_operator); + + return _cairo_output_stream_get_status (pdf_operators->stream); +} + +cairo_int_status_t +_cairo_pdf_operators_fill_stroke (cairo_pdf_operators_t *pdf_operators, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse) +{ + const char *operator; + + switch (fill_rule) { + default: + ASSERT_NOT_REACHED; + case CAIRO_FILL_RULE_WINDING: + operator = "B"; + break; + case CAIRO_FILL_RULE_EVEN_ODD: + operator = "B*"; + break; + } + + return _cairo_pdf_operators_emit_stroke (pdf_operators, + path, + style, + ctm, + ctm_inverse, + operator); +} + +static void +_cairo_pdf_operators_emit_glyph_index (cairo_pdf_operators_t *pdf_operators, + cairo_output_stream_t *stream, + unsigned int glyph) +{ + if (pdf_operators->is_latin) { + if (glyph == '(' || glyph == ')' || glyph == '\\') + _cairo_output_stream_printf (stream, "\\%c", glyph); + else if (glyph >= 0x20 && glyph <= 0x7e) + _cairo_output_stream_printf (stream, "%c", glyph); + else + _cairo_output_stream_printf (stream, "\\%03o", glyph); + } else { + _cairo_output_stream_printf (stream, + "%0*x", + pdf_operators->hex_width, + glyph); + } +} + +#define GLYPH_POSITION_TOLERANCE 0.001 + +/* Emit the string of glyphs using the 'Tj' operator. This requires + * that the glyphs are positioned at their natural glyph advances. */ +static cairo_status_t +_cairo_pdf_operators_emit_glyph_string (cairo_pdf_operators_t *pdf_operators, + cairo_output_stream_t *stream) +{ + int i; + + _cairo_output_stream_printf (stream, "%s", pdf_operators->is_latin ? "(" : "<"); + for (i = 0; i < pdf_operators->num_glyphs; i++) { + _cairo_pdf_operators_emit_glyph_index (pdf_operators, + stream, + pdf_operators->glyphs[i].glyph_index); + pdf_operators->cur_x += pdf_operators->glyphs[i].x_advance; + } + _cairo_output_stream_printf (stream, "%sTj\n", pdf_operators->is_latin ? ")" : ">"); + + return _cairo_output_stream_get_status (stream); +} + +/* Emit the string of glyphs using the 'TJ' operator. + * + * The TJ operator takes an array of strings of glyphs. Each string of + * glyphs is displayed using the glyph advances of each glyph to + * position the glyphs. A relative adjustment to the glyph advance may + * be specified by including the adjustment between two strings. The + * adjustment is in units of text space * -1000. + */ +static cairo_status_t +_cairo_pdf_operators_emit_glyph_string_with_positioning ( + cairo_pdf_operators_t *pdf_operators, + cairo_output_stream_t *stream) +{ + int i; + + _cairo_output_stream_printf (stream, "[%s", pdf_operators->is_latin ? "(" : "<"); + for (i = 0; i < pdf_operators->num_glyphs; i++) { + if (pdf_operators->glyphs[i].x_position != pdf_operators->cur_x) + { + double delta = pdf_operators->glyphs[i].x_position - pdf_operators->cur_x; + int rounded_delta; + + delta = -1000.0*delta; + /* As the delta is in 1/1000 of a unit of text space, + * rounding to an integer should still provide sufficient + * precision. We round the delta before adding to Tm_x so + * that we keep track of the accumulated rounding error in + * the PDF interpreter and compensate for it when + * calculating subsequent deltas. + */ + rounded_delta = _cairo_lround (delta); + if (abs(rounded_delta) < 3) + rounded_delta = 0; + if (rounded_delta != 0) { + if (pdf_operators->is_latin) { + _cairo_output_stream_printf (stream, + ")%d(", + rounded_delta); + } else { + _cairo_output_stream_printf (stream, + ">%d<", + rounded_delta); + } + } + + /* Convert the rounded delta back to text + * space before adding to the current text + * position. */ + delta = rounded_delta/-1000.0; + pdf_operators->cur_x += delta; + } + + _cairo_pdf_operators_emit_glyph_index (pdf_operators, + stream, + pdf_operators->glyphs[i].glyph_index); + pdf_operators->cur_x += pdf_operators->glyphs[i].x_advance; + } + _cairo_output_stream_printf (stream, "%s]TJ\n", pdf_operators->is_latin ? ")" : ">"); + + return _cairo_output_stream_get_status (stream); +} + +static cairo_status_t +_cairo_pdf_operators_flush_glyphs (cairo_pdf_operators_t *pdf_operators) +{ + cairo_output_stream_t *word_wrap_stream; + cairo_status_t status, status2; + int i; + double x; + + if (pdf_operators->num_glyphs == 0) + return CAIRO_STATUS_SUCCESS; + + word_wrap_stream = _word_wrap_stream_create (pdf_operators->stream, pdf_operators->ps_output, 72); + status = _cairo_output_stream_get_status (word_wrap_stream); + if (unlikely (status)) + return _cairo_output_stream_destroy (word_wrap_stream); + + /* Check if glyph advance used to position every glyph */ + x = pdf_operators->cur_x; + for (i = 0; i < pdf_operators->num_glyphs; i++) { + if (fabs(pdf_operators->glyphs[i].x_position - x) > GLYPH_POSITION_TOLERANCE) + break; + x += pdf_operators->glyphs[i].x_advance; + } + if (i == pdf_operators->num_glyphs) { + status = _cairo_pdf_operators_emit_glyph_string (pdf_operators, + word_wrap_stream); + } else { + status = _cairo_pdf_operators_emit_glyph_string_with_positioning ( + pdf_operators, word_wrap_stream); + } + + pdf_operators->num_glyphs = 0; + pdf_operators->glyph_buf_x_pos = pdf_operators->cur_x; + status2 = _cairo_output_stream_destroy (word_wrap_stream); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + + return status; +} + +static cairo_status_t +_cairo_pdf_operators_add_glyph (cairo_pdf_operators_t *pdf_operators, + cairo_scaled_font_subsets_glyph_t *glyph, + double x_position) +{ + double x, y; + + x = glyph->x_advance; + y = glyph->y_advance; + if (glyph->is_scaled) + cairo_matrix_transform_distance (&pdf_operators->font_matrix_inverse, &x, &y); + + pdf_operators->glyphs[pdf_operators->num_glyphs].x_position = x_position; + pdf_operators->glyphs[pdf_operators->num_glyphs].glyph_index = glyph->subset_glyph_index; + pdf_operators->glyphs[pdf_operators->num_glyphs].x_advance = x; + pdf_operators->glyph_buf_x_pos += x; + pdf_operators->num_glyphs++; + if (pdf_operators->num_glyphs == PDF_GLYPH_BUFFER_SIZE) + return _cairo_pdf_operators_flush_glyphs (pdf_operators); + + return CAIRO_STATUS_SUCCESS; +} + +/* Use 'Tm' operator to set the PDF text matrix. */ +static cairo_status_t +_cairo_pdf_operators_set_text_matrix (cairo_pdf_operators_t *pdf_operators, + cairo_matrix_t *matrix) +{ + cairo_matrix_t inverse; + cairo_status_t status; + + /* We require the matrix to be invertable. */ + inverse = *matrix; + status = cairo_matrix_invert (&inverse); + if (unlikely (status)) + return status; + + pdf_operators->text_matrix = *matrix; + pdf_operators->cur_x = 0; + pdf_operators->cur_y = 0; + pdf_operators->glyph_buf_x_pos = 0; + _cairo_output_stream_print_matrix (pdf_operators->stream, &pdf_operators->text_matrix); + _cairo_output_stream_printf (pdf_operators->stream, " Tm\n"); + + pdf_operators->cairo_to_pdftext = *matrix; + status = cairo_matrix_invert (&pdf_operators->cairo_to_pdftext); + assert (status == CAIRO_STATUS_SUCCESS); + cairo_matrix_multiply (&pdf_operators->cairo_to_pdftext, + &pdf_operators->cairo_to_pdf, + &pdf_operators->cairo_to_pdftext); + + return _cairo_output_stream_get_status (pdf_operators->stream); +} + +#define TEXT_MATRIX_TOLERANCE 1e-6 + +/* Set the translation components of the PDF text matrix to x, y. The + * 'Td' operator is used to transform the text matrix. + */ +static cairo_status_t +_cairo_pdf_operators_set_text_position (cairo_pdf_operators_t *pdf_operators, + double x, + double y) +{ + cairo_matrix_t translate, inverse; + cairo_status_t status; + + /* The Td operator transforms the text_matrix with: + * + * text_matrix' = T x text_matrix + * + * where T is a translation matrix with the translation components + * set to the Td operands tx and ty. + */ + inverse = pdf_operators->text_matrix; + status = cairo_matrix_invert (&inverse); + assert (status == CAIRO_STATUS_SUCCESS); + pdf_operators->text_matrix.x0 = x; + pdf_operators->text_matrix.y0 = y; + cairo_matrix_multiply (&translate, &pdf_operators->text_matrix, &inverse); + if (fabs(translate.x0) < TEXT_MATRIX_TOLERANCE) + translate.x0 = 0.0; + if (fabs(translate.y0) < TEXT_MATRIX_TOLERANCE) + translate.y0 = 0.0; + _cairo_output_stream_printf (pdf_operators->stream, + "%f %f Td\n", + translate.x0, + translate.y0); + pdf_operators->cur_x = 0; + pdf_operators->cur_y = 0; + pdf_operators->glyph_buf_x_pos = 0; + + pdf_operators->cairo_to_pdftext = pdf_operators->text_matrix; + status = cairo_matrix_invert (&pdf_operators->cairo_to_pdftext); + assert (status == CAIRO_STATUS_SUCCESS); + cairo_matrix_multiply (&pdf_operators->cairo_to_pdftext, + &pdf_operators->cairo_to_pdf, + &pdf_operators->cairo_to_pdftext); + + return _cairo_output_stream_get_status (pdf_operators->stream); +} + +/* Select the font using the 'Tf' operator. The font size is set to 1 + * as we use the 'Tm' operator to set the font scale. + */ +static cairo_status_t +_cairo_pdf_operators_set_font_subset (cairo_pdf_operators_t *pdf_operators, + cairo_scaled_font_subsets_glyph_t *subset_glyph) +{ + cairo_status_t status; + + _cairo_output_stream_printf (pdf_operators->stream, + "/f-%d-%d 1 Tf\n", + subset_glyph->font_id, + subset_glyph->subset_id); + if (pdf_operators->use_font_subset) { + status = pdf_operators->use_font_subset (subset_glyph->font_id, + subset_glyph->subset_id, + pdf_operators->use_font_subset_closure); + if (unlikely (status)) + return status; + } + pdf_operators->font_id = subset_glyph->font_id; + pdf_operators->subset_id = subset_glyph->subset_id; + pdf_operators->is_latin = subset_glyph->is_latin; + + if (subset_glyph->is_composite) + pdf_operators->hex_width = 4; + else + pdf_operators->hex_width = 2; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_pdf_operators_begin_text (cairo_pdf_operators_t *pdf_operators) +{ + _cairo_output_stream_printf (pdf_operators->stream, "BT\n"); + + pdf_operators->in_text_object = TRUE; + pdf_operators->num_glyphs = 0; + pdf_operators->glyph_buf_x_pos = 0; + + return _cairo_output_stream_get_status (pdf_operators->stream); +} + +static cairo_status_t +_cairo_pdf_operators_end_text (cairo_pdf_operators_t *pdf_operators) +{ + cairo_status_t status; + + status = _cairo_pdf_operators_flush_glyphs (pdf_operators); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (pdf_operators->stream, "ET\n"); + + pdf_operators->in_text_object = FALSE; + + return _cairo_output_stream_get_status (pdf_operators->stream); +} + +/* Compare the scale components of two matrices. The translation + * components are ignored. */ +static cairo_bool_t +_cairo_matrix_scale_equal (cairo_matrix_t *a, cairo_matrix_t *b) +{ + return (a->xx == b->xx && + a->xy == b->xy && + a->yx == b->yx && + a->yy == b->yy); +} + +static cairo_status_t +_cairo_pdf_operators_begin_actualtext (cairo_pdf_operators_t *pdf_operators, + const char *utf8, + int utf8_len) +{ + uint16_t *utf16; + int utf16_len; + cairo_status_t status; + int i; + + _cairo_output_stream_printf (pdf_operators->stream, "/Span << /ActualText stream, + "%04x", (int) (utf16[i])); + } + free (utf16); + } + _cairo_output_stream_printf (pdf_operators->stream, "> >> BDC\n"); + + return _cairo_output_stream_get_status (pdf_operators->stream); +} + +static cairo_status_t +_cairo_pdf_operators_end_actualtext (cairo_pdf_operators_t *pdf_operators) +{ + _cairo_output_stream_printf (pdf_operators->stream, "EMC\n"); + + return _cairo_output_stream_get_status (pdf_operators->stream); +} + +static cairo_status_t +_cairo_pdf_operators_emit_glyph (cairo_pdf_operators_t *pdf_operators, + cairo_glyph_t *glyph, + cairo_scaled_font_subsets_glyph_t *subset_glyph) +{ + double x, y; + cairo_status_t status; + + if (pdf_operators->is_new_text_object || + pdf_operators->font_id != subset_glyph->font_id || + pdf_operators->subset_id != subset_glyph->subset_id) + { + status = _cairo_pdf_operators_flush_glyphs (pdf_operators); + if (unlikely (status)) + return status; + + status = _cairo_pdf_operators_set_font_subset (pdf_operators, subset_glyph); + if (unlikely (status)) + return status; + + pdf_operators->is_new_text_object = FALSE; + } + + x = glyph->x; + y = glyph->y; + cairo_matrix_transform_point (&pdf_operators->cairo_to_pdftext, &x, &y); + + /* The TJ operator for displaying text strings can only set + * the horizontal position of the glyphs. If the y position + * (in text space) changes, use the Td operator to change the + * current position to the next glyph. We also use the Td + * operator to move the current position if the horizontal + * position changes by more than 10 (in text space + * units). This is because the horizontal glyph positioning + * in the TJ operator is intended for kerning and there may be + * PDF consumers that do not handle very large position + * adjustments in TJ. + */ + if (fabs(x - pdf_operators->glyph_buf_x_pos) > 10 || + fabs(y - pdf_operators->cur_y) > GLYPH_POSITION_TOLERANCE) + { + status = _cairo_pdf_operators_flush_glyphs (pdf_operators); + if (unlikely (status)) + return status; + + x = glyph->x; + y = glyph->y; + cairo_matrix_transform_point (&pdf_operators->cairo_to_pdf, &x, &y); + status = _cairo_pdf_operators_set_text_position (pdf_operators, x, y); + if (unlikely (status)) + return status; + + x = 0.0; + y = 0.0; + } + + status = _cairo_pdf_operators_add_glyph (pdf_operators, + subset_glyph, + x); + return status; +} + +/* A utf8_len of -1 indicates no unicode text. A utf8_len = 0 is an + * empty string. + */ +static cairo_int_status_t +_cairo_pdf_operators_emit_cluster (cairo_pdf_operators_t *pdf_operators, + const char *utf8, + int utf8_len, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font) +{ + cairo_scaled_font_subsets_glyph_t subset_glyph; + cairo_glyph_t *cur_glyph; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + int i; + + /* If the cluster maps 1 glyph to 1 or more unicode characters, we + * first try _map_glyph() with the unicode string to see if it can + * use toUnicode to map our glyph to the unicode. This will fail + * if the glyph is already mapped to a different unicode string. + * + * We also go through this path if no unicode mapping was + * supplied (utf8_len < 0). + * + * Mapping a glyph to a zero length unicode string requires the + * use of ActualText. + */ + if (num_glyphs == 1 && utf8_len != 0) { + status = _cairo_scaled_font_subsets_map_glyph (pdf_operators->font_subsets, + scaled_font, + glyphs->index, + utf8, + utf8_len, + &subset_glyph); + if (unlikely (status)) + return status; + + if (subset_glyph.utf8_is_mapped || utf8_len < 0) { + status = _cairo_pdf_operators_emit_glyph (pdf_operators, + glyphs, + &subset_glyph); + if (unlikely (status)) + return status; + + return CAIRO_STATUS_SUCCESS; + } + } + + if (pdf_operators->use_actual_text) { + /* Fallback to using ActualText to map zero or more glyphs to a + * unicode string. */ + status = _cairo_pdf_operators_flush_glyphs (pdf_operators); + if (unlikely (status)) + return status; + + status = _cairo_pdf_operators_begin_actualtext (pdf_operators, utf8, utf8_len); + if (unlikely (status)) + return status; + } + + if (cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD) + cur_glyph = glyphs + num_glyphs - 1; + else + cur_glyph = glyphs; + + /* XXX + * If no glyphs, we should put *something* here for the text to be selectable. */ + for (i = 0; i < num_glyphs; i++) { + status = _cairo_scaled_font_subsets_map_glyph (pdf_operators->font_subsets, + scaled_font, + cur_glyph->index, + NULL, -1, + &subset_glyph); + if (unlikely (status)) + return status; + + status = _cairo_pdf_operators_emit_glyph (pdf_operators, + cur_glyph, + &subset_glyph); + if (unlikely (status)) + return status; + + if ((cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD)) + cur_glyph--; + else + cur_glyph++; + } + + if (pdf_operators->use_actual_text) { + status = _cairo_pdf_operators_flush_glyphs (pdf_operators); + if (unlikely (status)) + return status; + + status = _cairo_pdf_operators_end_actualtext (pdf_operators); + } + + return status; +} + +cairo_int_status_t +_cairo_pdf_operators_show_text_glyphs (cairo_pdf_operators_t *pdf_operators, + const char *utf8, + int utf8_len, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font) +{ + cairo_status_t status; + int i; + cairo_matrix_t text_matrix, invert_y_axis; + double x, y; + const char *cur_text; + cairo_glyph_t *cur_glyph; + + pdf_operators->font_matrix_inverse = scaled_font->font_matrix; + status = cairo_matrix_invert (&pdf_operators->font_matrix_inverse); + if (status == CAIRO_STATUS_INVALID_MATRIX) + return CAIRO_STATUS_SUCCESS; + assert (status == CAIRO_STATUS_SUCCESS); + + pdf_operators->is_new_text_object = FALSE; + if (pdf_operators->in_text_object == FALSE) { + status = _cairo_pdf_operators_begin_text (pdf_operators); + if (unlikely (status)) + return status; + + /* Force Tm and Tf to be emitted when starting a new text + * object.*/ + pdf_operators->is_new_text_object = TRUE; + } + + cairo_matrix_init_scale (&invert_y_axis, 1, -1); + text_matrix = scaled_font->scale; + + /* Invert y axis in device space */ + cairo_matrix_multiply (&text_matrix, &invert_y_axis, &text_matrix); + + if (pdf_operators->is_new_text_object || + ! _cairo_matrix_scale_equal (&pdf_operators->text_matrix, &text_matrix)) + { + status = _cairo_pdf_operators_flush_glyphs (pdf_operators); + if (unlikely (status)) + return status; + + x = glyphs[0].x; + y = glyphs[0].y; + cairo_matrix_transform_point (&pdf_operators->cairo_to_pdf, &x, &y); + text_matrix.x0 = x; + text_matrix.y0 = y; + status = _cairo_pdf_operators_set_text_matrix (pdf_operators, &text_matrix); + if (status == CAIRO_STATUS_INVALID_MATRIX) + return CAIRO_STATUS_SUCCESS; + if (unlikely (status)) + return status; + } + + if (num_clusters > 0) { + cur_text = utf8; + if ((cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD)) + cur_glyph = glyphs + num_glyphs; + else + cur_glyph = glyphs; + for (i = 0; i < num_clusters; i++) { + if ((cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD)) + cur_glyph -= clusters[i].num_glyphs; + status = _cairo_pdf_operators_emit_cluster (pdf_operators, + cur_text, + clusters[i].num_bytes, + cur_glyph, + clusters[i].num_glyphs, + cluster_flags, + scaled_font); + if (unlikely (status)) + return status; + + cur_text += clusters[i].num_bytes; + if (!(cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD)) + cur_glyph += clusters[i].num_glyphs; + } + } else { + for (i = 0; i < num_glyphs; i++) { + status = _cairo_pdf_operators_emit_cluster (pdf_operators, + NULL, + -1, /* no unicode string available */ + &glyphs[i], + 1, + FALSE, + scaled_font); + if (unlikely (status)) + return status; + } + } + + return _cairo_output_stream_get_status (pdf_operators->stream); +} + +cairo_int_status_t +_cairo_pdf_operators_tag_begin (cairo_pdf_operators_t *pdf_operators, + const char *tag_name, + int mcid) +{ + cairo_status_t status; + + if (pdf_operators->in_text_object) { + status = _cairo_pdf_operators_end_text (pdf_operators); + if (unlikely (status)) + return status; + } + + if (mcid >= 0) { + _cairo_output_stream_printf (pdf_operators->stream, + "/%s << /MCID %d >> BDC\n", + tag_name, + mcid); + } else { + _cairo_output_stream_printf (pdf_operators->stream, + "/%s BMC\n", + tag_name); + } + + return _cairo_output_stream_get_status (pdf_operators->stream); +} + +cairo_int_status_t +_cairo_pdf_operators_tag_end (cairo_pdf_operators_t *pdf_operators) +{ + cairo_status_t status; + + if (pdf_operators->in_text_object) { + status = _cairo_pdf_operators_end_text (pdf_operators); + if (unlikely (status)) + return status; + } + + _cairo_output_stream_printf (pdf_operators->stream, "EMC\n"); + + return _cairo_output_stream_get_status (pdf_operators->stream); +} + +#endif /* CAIRO_HAS_PDF_OPERATORS */ diff --git a/local/recipes/libs/cairo/source/src/cairo-pdf-shading-private.h b/local/recipes/libs/cairo/source/src/cairo-pdf-shading-private.h new file mode 100644 index 0000000000..0ca8cb7d51 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-pdf-shading-private.h @@ -0,0 +1,100 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Adrian Johnson. + * + * Contributor(s): + * Adrian Johnson + */ + +#ifndef CAIRO_PDF_SHADING_H +#define CAIRO_PDF_SHADING_H + +#include "cairo-compiler-private.h" +#include "cairo-types-private.h" +#include "cairo-pattern-private.h" + + +typedef struct _cairo_pdf_shading { + int shading_type; + int bits_per_coordinate; + int bits_per_component; + int bits_per_flag; + double *decode_array; + int decode_array_length; + unsigned char *data; + unsigned long data_length; +} cairo_pdf_shading_t; + + +/** + * _cairo_pdf_shading_init_color: + * @shading: a #cairo_pdf_shading_t to initialize + * @pattern: the #cairo_mesh_pattern_t to initialize from + * + * Generate the PDF shading dictionary data for the a PDF type 7 + * shading from RGB part of the specified mesh pattern. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, possible errors + * include %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_status_t +_cairo_pdf_shading_init_color (cairo_pdf_shading_t *shading, + const cairo_mesh_pattern_t *pattern); + + +/** + * _cairo_pdf_shading_init_alpha: + * @shading: a #cairo_pdf_shading_t to initialize + * @pattern: the #cairo_mesh_pattern_t to initialize from + * + * Generate the PDF shading dictionary data for a PDF type 7 + * shading from alpha part of the specified mesh pattern. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, possible errors + * include %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_status_t +_cairo_pdf_shading_init_alpha (cairo_pdf_shading_t *shading, + const cairo_mesh_pattern_t *pattern); + +/** + * _cairo_pdf_shading_fini: + * @shading: a #cairo_pdf_shading_t + * + * Free all resources associated with @shading. After this call, + * @shading should not be used again without a subsequent call to + * _cairo_pdf_shading_init() again first. + **/ +cairo_private void +_cairo_pdf_shading_fini (cairo_pdf_shading_t *shading); + + +#endif /* CAIRO_PDF_SHADING_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-pdf-shading.c b/local/recipes/libs/cairo/source/src/cairo-pdf-shading.c new file mode 100644 index 0000000000..b114b3104b --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-pdf-shading.c @@ -0,0 +1,279 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Adrian Johnson. + * + * Contributor(s): + * Adrian Johnson + */ + +#include "cairoint.h" + +#if CAIRO_HAS_PDF_OPERATORS + +#include "cairo-pdf-shading-private.h" + +#include "cairo-array-private.h" +#include "cairo-error-private.h" +#include + +static unsigned char * +encode_coordinate (unsigned char *p, double c) +{ + uint32_t f; + + f = c; + *p++ = f >> 24; + *p++ = (f >> 16) & 0xff; + *p++ = (f >> 8) & 0xff; + *p++ = f & 0xff; + + return p; +} + +static unsigned char * +encode_point (unsigned char *p, const cairo_point_double_t *point) +{ + p = encode_coordinate (p, point->x); + p = encode_coordinate (p, point->y); + + return p; +} + +static unsigned char * +encode_color_component (unsigned char *p, double color) +{ + uint16_t c; + + c = _cairo_color_double_to_short (color); + *p++ = c >> 8; + *p++ = c & 0xff; + + return p; +} + +static unsigned char * +encode_color (unsigned char *p, const cairo_color_t *color) +{ + p = encode_color_component (p, color->red); + p = encode_color_component (p, color->green); + p = encode_color_component (p, color->blue); + + return p; +} + +static unsigned char * +encode_alpha (unsigned char *p, const cairo_color_t *color) +{ + p = encode_color_component (p, color->alpha); + + return p; +} + +static cairo_status_t +_cairo_pdf_shading_generate_decode_array (cairo_pdf_shading_t *shading, + const cairo_mesh_pattern_t *mesh, + cairo_bool_t is_alpha) +{ + unsigned int num_color_components, i; + cairo_bool_t is_valid; + + if (is_alpha) + num_color_components = 1; + else + num_color_components = 3; + + shading->decode_array_length = 4 + num_color_components * 2; + shading->decode_array = _cairo_malloc_ab (shading->decode_array_length, + sizeof (double)); + if (unlikely (shading->decode_array == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + is_valid = _cairo_mesh_pattern_coord_box (mesh, + &shading->decode_array[0], + &shading->decode_array[2], + &shading->decode_array[1], + &shading->decode_array[3]); + + assert (is_valid); + assert (shading->decode_array[1] - shading->decode_array[0] >= DBL_EPSILON); + assert (shading->decode_array[3] - shading->decode_array[2] >= DBL_EPSILON); + + for (i = 0; i < num_color_components; i++) { + shading->decode_array[4 + 2*i] = 0; + shading->decode_array[5 + 2*i] = 1; + } + + return CAIRO_STATUS_SUCCESS; +} + +/* The ISO32000 specification mandates this order for the points which + * define the patch. */ +static const int pdf_points_order_i[16] = { + 0, 0, 0, 0, 1, 2, 3, 3, 3, 3, 2, 1, 1, 1, 2, 2 }; +static const int pdf_points_order_j[16] = { + 0, 1, 2, 3, 3, 3, 3, 2, 1, 0, 0, 0, 1, 2, 2, 1 }; + +static cairo_status_t +_cairo_pdf_shading_generate_data (cairo_pdf_shading_t *shading, + const cairo_mesh_pattern_t *mesh, + cairo_bool_t is_alpha) +{ + const cairo_mesh_patch_t *patch; + double x_off, y_off, x_scale, y_scale; + unsigned int num_patches; + unsigned int num_color_components; + unsigned char *p; + unsigned int i, j; + + if (is_alpha) + num_color_components = 1; + else + num_color_components = 3; + + num_patches = _cairo_array_num_elements (&mesh->patches); + patch = _cairo_array_index_const (&mesh->patches, 0); + + /* Each patch requires: + * + * 1 flag - 1 byte + * 16 points. Each point is 2 coordinates. Each coordinate is + * stored in 4 bytes. + * + * 4 colors. Each color is stored in 2 bytes * num_color_components. + */ + shading->data_length = num_patches * (1 + 16 * 2 * 4 + 4 * 2 * num_color_components); + shading->data = _cairo_malloc (shading->data_length); + if (unlikely (shading->data == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + x_off = shading->decode_array[0]; + y_off = shading->decode_array[2]; + x_scale = UINT32_MAX / (shading->decode_array[1] - x_off); + y_scale = UINT32_MAX / (shading->decode_array[3] - y_off); + + p = shading->data; + for (i = 0; i < num_patches; i++) { + /* edge flag */ + *p++ = 0; + + /* 16 points */ + for (j = 0; j < 16; j++) { + cairo_point_double_t point; + int pi, pj; + + pi = pdf_points_order_i[j]; + pj = pdf_points_order_j[j]; + point = patch[i].points[pi][pj]; + + /* Transform the point as specified in the decode array */ + point.x -= x_off; + point.y -= y_off; + point.x *= x_scale; + point.y *= y_scale; + + /* Make sure that rounding errors don't cause + * wraparounds */ + point.x = _cairo_restrict_value (point.x, 0, UINT32_MAX); + point.y = _cairo_restrict_value (point.y, 0, UINT32_MAX); + + p = encode_point (p, &point); + } + + /* 4 colors */ + for (j = 0; j < 4; j++) { + if (is_alpha) + p = encode_alpha (p, &patch[i].colors[j]); + else + p = encode_color (p, &patch[i].colors[j]); + } + } + + assert (p == shading->data + shading->data_length); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_pdf_shading_init (cairo_pdf_shading_t *shading, + const cairo_mesh_pattern_t *mesh, + cairo_bool_t is_alpha) +{ + cairo_status_t status; + + assert (mesh->base.status == CAIRO_STATUS_SUCCESS); + assert (mesh->current_patch == NULL); + + shading->shading_type = 7; + + /* + * Coordinates from the minimum to the maximum value of the mesh + * map to the [0..UINT32_MAX] range and are represented as + * uint32_t values. + * + * Color components are represented as uint16_t (in a 0.16 fixed + * point format, as in the rest of cairo). + */ + shading->bits_per_coordinate = 32; + shading->bits_per_component = 16; + shading->bits_per_flag = 8; + + shading->decode_array = NULL; + shading->data = NULL; + + status = _cairo_pdf_shading_generate_decode_array (shading, mesh, is_alpha); + if (unlikely (status)) + return status; + + return _cairo_pdf_shading_generate_data (shading, mesh, is_alpha); +} + +cairo_status_t +_cairo_pdf_shading_init_color (cairo_pdf_shading_t *shading, + const cairo_mesh_pattern_t *pattern) +{ + return _cairo_pdf_shading_init (shading, pattern, FALSE); +} + +cairo_status_t +_cairo_pdf_shading_init_alpha (cairo_pdf_shading_t *shading, + const cairo_mesh_pattern_t *pattern) +{ + return _cairo_pdf_shading_init (shading, pattern, TRUE); +} + +void +_cairo_pdf_shading_fini (cairo_pdf_shading_t *shading) +{ + free (shading->data); + free (shading->decode_array); +} + +#endif /* CAIRO_HAS_PDF_OPERATORS */ diff --git a/local/recipes/libs/cairo/source/src/cairo-pdf-surface-private.h b/local/recipes/libs/cairo/source/src/cairo-pdf-surface-private.h new file mode 100644 index 0000000000..bf1d39456c --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-pdf-surface-private.h @@ -0,0 +1,587 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 Red Hat, Inc + * Copyright © 2006 Red Hat, Inc + * Copyright © 2007, 2008 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Kristian Høgsberg + * Carl Worth + * Adrian Johnson + */ + +#ifndef CAIRO_PDF_SURFACE_PRIVATE_H +#define CAIRO_PDF_SURFACE_PRIVATE_H + +#include "cairo-pdf.h" + +#include "cairo-surface-private.h" +#include "cairo-surface-clipper-private.h" +#include "cairo-pdf-operators-private.h" +#include "cairo-path-fixed-private.h" +#include "cairo-tag-attributes-private.h" +#include "cairo-tag-stack-private.h" + +typedef struct _cairo_pdf_resource { + unsigned int id; +} cairo_pdf_resource_t; + + +#define CAIRO_NUM_OPERATORS (CAIRO_OPERATOR_HSL_LUMINOSITY + 1) + +typedef struct _cairo_pdf_group_resources { + cairo_bool_t operators[CAIRO_NUM_OPERATORS]; + cairo_array_t alphas; + cairo_array_t smasks; + cairo_array_t patterns; + cairo_array_t shadings; + cairo_array_t xobjects; + cairo_array_t fonts; +} cairo_pdf_group_resources_t; + +typedef struct _cairo_pdf_source_surface_entry { + cairo_hash_entry_t base; + unsigned int id; + unsigned char *unique_id; + unsigned long unique_id_length; + cairo_operator_t operator; + + /* If not 0, this is the recording surface region id of the source surface. */ + int region_id; + + cairo_bool_t interpolate; + cairo_bool_t stencil_mask; + cairo_bool_t smask; + cairo_bool_t need_transp_group; + cairo_pdf_resource_t surface_res; + cairo_pdf_resource_t smask_res; + + /* True if surface will be emitted as an Image XObject. */ + cairo_bool_t emit_image; + + /* Extents of the source surface. */ + cairo_bool_t bounded; + cairo_rectangle_int_t extents; + + /* Union of source extents required for all operations using this source */ + cairo_rectangle_int_t required_extents; +} cairo_pdf_source_surface_entry_t; + +typedef struct _cairo_pdf_source_surface { + cairo_pattern_type_t type; + cairo_surface_t *surface; + unsigned int region_id; + cairo_pattern_t *raster_pattern; + cairo_pdf_source_surface_entry_t *hash_entry; +} cairo_pdf_source_surface_t; + +typedef struct _cairo_pdf_pattern { + double width; + double height; + cairo_rectangle_int_t extents; + cairo_pattern_t *pattern; + cairo_pdf_resource_t pattern_res; + cairo_pdf_resource_t gstate_res; + cairo_operator_t operator; + cairo_bool_t is_shading; + + /* Index into nodes array in cairo_pdf_surface_node_entry_t or -1 if not used */ + int region_id; + + /* PDF pattern space is the pattern matrix concatenated with the + * initial space of the parent object. If the parent object is the + * page, the initial space does not include the Y-axis flipping + * matrix emitted at the start of the page content stream. If the + * parent object is not the page content stream, the initial space + * will have a flipped Y-axis. The inverted_y_axis flag is true + * when the initial space of the parent object that is drawing + * this pattern has a flipped Y-axis. + */ + cairo_bool_t inverted_y_axis; +} cairo_pdf_pattern_t; + +typedef enum _cairo_pdf_operation { + PDF_PAINT, + PDF_MASK, + PDF_FILL, + PDF_STROKE, + PDF_SHOW_GLYPHS +} cairo_pdf_operation_t; + +typedef struct _cairo_pdf_smask_group { + double width; + double height; + cairo_rectangle_int_t extents; + cairo_pdf_resource_t group_res; + cairo_pdf_operation_t operation; + cairo_pattern_t *source; + cairo_pdf_resource_t source_res; + cairo_pattern_t *mask; + cairo_path_fixed_t path; + cairo_fill_rule_t fill_rule; + cairo_stroke_style_t style; + cairo_matrix_t ctm; + cairo_matrix_t ctm_inverse; + char *utf8; + int utf8_len; + cairo_glyph_t *glyphs; + int num_glyphs; + cairo_text_cluster_t *clusters; + int num_clusters; + cairo_bool_t cluster_flags; + cairo_scaled_font_t *scaled_font; +} cairo_pdf_smask_group_t; + +typedef struct _cairo_pdf_jbig2_global { + unsigned char *id; + unsigned long id_length; + cairo_pdf_resource_t res; + cairo_bool_t emitted; +} cairo_pdf_jbig2_global_t; + +typedef struct _cairo_pdf_page_info { + double width; + double height; + cairo_pdf_resource_t page_res; + cairo_pdf_resource_t content; + cairo_pdf_resource_t resources; + cairo_pdf_resource_t thumbnail; + cairo_array_t annots; /* */ + int struct_parents; +} cairo_pdf_page_info_t; + + +/* cairo-pdf-interchange.c types */ + +typedef struct _pdf_tag_extents { + cairo_rectangle_int_t extents; + cairo_bool_t valid; +} cairo_pdf_tag_extents_t; + +typedef struct _pdf_page_mcid { + int order; + int page; + cairo_pdf_resource_t xobject_res; /* 0 if not in an XObject */ + int mcid; + struct _cairo_pdf_struct_tree_node *child_node; +} cairo_pdf_page_mcid_t; + +/* The non PDF_NODE_STRUCT types are excluded from the struct tree embedded in + * the PDF. */ +typedef enum _cairo_pdf_tree_node_type { + PDF_NODE_STRUCT, + PDF_NODE_CONTENT, + PDF_NODE_CONTENT_REF, + PDF_NODE_ARTIFACT, +} cairo_pdf_tree_node_type_t; + +typedef struct _cairo_pdf_struct_tree_node { + cairo_hash_entry_t hash; + cairo_pdf_tree_node_type_t type; + char *name; + cairo_pdf_resource_t res; + struct _cairo_pdf_struct_tree_node *parent; + cairo_list_t children; + cairo_array_t mcid; /* array of cairo_pdf_page_mcid_t */ + struct _cairo_pdf_annotation *annot; + cairo_pdf_tag_extents_t extents; + + union { + cairo_content_attrs_t content; /* type == PDF_NODE_CONTENT */ + cairo_content_ref_attrs_t content_ref; /* type == PDF_NODE_CONTENT_REF */ + } attributes; + + cairo_list_t link; /* linked list of parent's children */ +} cairo_pdf_struct_tree_node_t; + +typedef struct _cairo_pdf_command_entry { + cairo_hash_entry_t base; + unsigned int recording_id; + unsigned int command_id; + cairo_pdf_struct_tree_node_t *node; +} cairo_pdf_command_entry_t; + +typedef struct _cairo_recording_surface_stack_entry { + cairo_bool_t ignore_surface; + cairo_pdf_struct_tree_node_t *current_node; +} cairo_recording_surface_stack_entry_t; + +typedef struct _cairo_pdf_content_tag { + cairo_hash_entry_t base; + cairo_pdf_struct_tree_node_t *node; +} cairo_pdf_content_tag_t; + +typedef struct _cairo_pdf_annotation { + cairo_pdf_struct_tree_node_t *node; /* node containing the annotation */ + cairo_link_attrs_t link_attrs; + cairo_pdf_resource_t res; +} cairo_pdf_annotation_t; + +typedef struct _cairo_pdf_named_dest { + cairo_hash_entry_t base; + cairo_pdf_tag_extents_t extents; + cairo_dest_attrs_t attrs; + int page; +} cairo_pdf_named_dest_t; + +typedef struct _cairo_pdf_outline_entry { + char *name; + cairo_link_attrs_t link_attrs; + cairo_pdf_outline_flags_t flags; + cairo_pdf_resource_t res; + struct _cairo_pdf_outline_entry *parent; + struct _cairo_pdf_outline_entry *first_child; + struct _cairo_pdf_outline_entry *last_child; + struct _cairo_pdf_outline_entry *next; + struct _cairo_pdf_outline_entry *prev; + int count; +} cairo_pdf_outline_entry_t; + +struct docinfo { + char *title; + char *author; + char *subject; + char *keywords; + char *creator; + char *create_date; + char *mod_date; +}; + +struct metadata { + char *name; + char *value; +}; + +typedef enum _cairo_pdf_operation_flags_t { + PDF_NONE = 0, + PDF_CONTENT, + PDF_BEGIN, + PDF_END, + PDF_GROUP, +} cairo_pdf_operation_flags_t; + +typedef struct _pdf_command_list { + cairo_array_t commands; + struct _pdf_command_list *parent; +} cairo_pdf_command_list_t; + +typedef struct _pdf_operation { + cairo_pdf_command_list_t *group; + cairo_pdf_struct_tree_node_t *node; + unsigned int command_id; + int mcid_index; + cairo_pdf_operation_flags_t flags; +} cairo_pdf_command_t; + +typedef struct _pdf_recording_surface_commands { + cairo_surface_t *recording_surface; + cairo_pdf_command_list_t *command_list; + unsigned int region_id; +} cairo_pdf_recording_surface_commands_t; + +typedef struct _cairo_pdf_interchange { + cairo_tag_stack_t analysis_tag_stack; + cairo_tag_stack_t render_tag_stack; + cairo_pdf_struct_tree_node_t *struct_root; + + /* Current position in the tree during the analysis stage and across + * pages as each page adds to the tree */ + cairo_pdf_struct_tree_node_t *current_analyze_node; + + /* Currently open tag content containing content. NULL if no content tag open. + * A content containg tag may be open across pages */ + cairo_pdf_struct_tree_node_t *current_render_node; + cairo_pdf_struct_tree_node_t *next_page_render_node; + + cairo_array_t recording_surface_stack; /* cairo_recording_surface_stack_entry_t */ + cairo_pdf_resource_t current_recording_surface_res; + cairo_hash_table_t *command_to_node_map; /* */ + cairo_bool_t ignore_current_surface; + cairo_hash_table_t *content_tag_map; /* */ + + cairo_array_t parent_tree; /* */ + cairo_array_t annots; /* array of pointers to cairo_pdf_annotation_t */ + cairo_pdf_resource_t content_parent_res; + cairo_pdf_resource_t parent_tree_res; + + /* mcid to tree node for current page or group */ + cairo_array_t mcid_to_tree; /* */ + + cairo_array_t page_commands; /* */ + cairo_pdf_command_list_t *current_commands; /* */ + cairo_array_t recording_surface_commands; /* */ + + cairo_list_t extents_list; + cairo_hash_table_t *named_dests; + int num_dests; + cairo_pdf_named_dest_t **sorted_dests; + cairo_pdf_resource_t dests_res; + int annot_page; + cairo_array_t outline; /* array of pointers to cairo_pdf_outline_entry_t; */ + struct docinfo docinfo; + cairo_array_t custom_metadata; /* array of struct metadata */ + cairo_bool_t content_emitted; + cairo_bool_t marked_content_open; + unsigned int recording_id; + unsigned int command_id; + cairo_bool_t render_next_command_has_content; + int mcid_order; + +} cairo_pdf_interchange_t; + +typedef struct _cairo_pdf_color_glyph { + cairo_hash_entry_t base; + cairo_scaled_font_t *scaled_font; + unsigned long glyph_index; + cairo_bool_t supported; +} cairo_pdf_color_glyph_t; + +/* pdf surface data */ + +typedef struct _cairo_pdf_surface cairo_pdf_surface_t; + +struct _cairo_pdf_surface { + cairo_surface_t base; + + /* Prefer the name "output" here to avoid confusion over the + * structure within a PDF document known as a "stream". */ + cairo_output_stream_t *output; + + double width; + double height; + cairo_rectangle_int_t surface_extents; + cairo_bool_t surface_bounded; + cairo_matrix_t cairo_to_pdf; + cairo_bool_t in_xobject; + + cairo_array_t objects; /* cairo_pdf_resource_t - list of every resource in the PDF */ + cairo_array_t pages; /* */ + cairo_array_t rgb_linear_functions; + cairo_array_t alpha_linear_functions; + cairo_array_t page_patterns; /* cairo_pdf_pattern_t */ + cairo_array_t page_surfaces; /* cairo_pdf_source_surface_t */ + cairo_array_t doc_surfaces; /* cairo_pdf_source_surface_t */ + cairo_hash_table_t *all_surfaces; /* cairo_pdf_source_surface_entry_t* */ + int duplicate_surface_number; + cairo_array_t smask_groups; + cairo_array_t knockout_group; + cairo_array_t jbig2_global; + cairo_hash_table_t *color_glyphs; + + cairo_scaled_font_subsets_t *font_subsets; + cairo_array_t fonts; + + cairo_pdf_resource_t next_available_resource; + cairo_pdf_resource_t pages_resource; + cairo_pdf_resource_t struct_tree_root; + + cairo_pdf_version_t pdf_version; + cairo_bool_t compress_streams; + + cairo_pdf_resource_t content; + cairo_pdf_resource_t content_resources; + cairo_pdf_group_resources_t resources; + cairo_bool_t has_fallback_images; + cairo_bool_t header_emitted; + + struct { + cairo_bool_t active; + cairo_pdf_resource_t self; + cairo_pdf_resource_t length; + long long start_offset; + cairo_bool_t compressed; + cairo_output_stream_t *old_output; + } pdf_stream; + + struct { + cairo_bool_t active; + cairo_output_stream_t *stream; + cairo_output_stream_t *mem_stream; + cairo_output_stream_t *old_output; + cairo_pdf_resource_t resource; + cairo_box_double_t bbox; + cairo_bool_t is_knockout; + } group_stream; + + struct { + cairo_bool_t active; + cairo_output_stream_t *stream; + cairo_pdf_resource_t resource; + cairo_array_t objects; + } object_stream; + + cairo_surface_clipper_t clipper; + + cairo_pdf_operators_t pdf_operators; + cairo_paginated_mode_t paginated_mode; + cairo_bool_t type3_replay; + cairo_bool_t select_pattern_gstate_saved; + + cairo_bool_t force_fallbacks; + + cairo_operator_t current_operator; + cairo_bool_t reset_gs_required; + cairo_bool_t current_pattern_is_solid_color; + cairo_bool_t current_color_is_stroke; + double current_color_red; + double current_color_green; + double current_color_blue; + double current_color_alpha; + + cairo_pdf_interchange_t interchange; + int page_parent_tree; /* -1 if not used */ + cairo_array_t page_annots; + cairo_bool_t tagged; + char *current_page_label; + cairo_array_t page_labels; + cairo_pdf_resource_t outlines_dict_res; + cairo_pdf_resource_t names_dict_res; + cairo_pdf_resource_t docinfo_res; + cairo_pdf_resource_t page_labels_res; + + int thumbnail_width; + int thumbnail_height; + cairo_image_surface_t *thumbnail_image; + + cairo_surface_t *paginated_surface; + + cairo_bool_t debug; +}; + +cairo_private cairo_pdf_resource_t +_cairo_pdf_surface_new_object (cairo_pdf_surface_t *surface); + +cairo_private void +_cairo_pdf_surface_update_object (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t resource); + +cairo_private cairo_int_status_t +_cairo_utf8_to_pdf_string (const char *utf8, char **str_out); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_init (cairo_pdf_surface_t *surface); + +cairo_private void +_cairo_pdf_interchange_fini (cairo_pdf_surface_t *surface); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_begin_page_content (cairo_pdf_surface_t *surface); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_end_page_content (cairo_pdf_surface_t *surface); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_tag_begin (cairo_pdf_surface_t *surface, + const char *name, + const char *attributes); + +cairo_private cairo_int_status_t +_cairo_pdf_surface_object_begin (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t resource); + +cairo_private void +_cairo_pdf_surface_object_end (cairo_pdf_surface_t *surface); + +cairo_private cairo_bool_t +_cairo_pdf_interchange_struct_tree_requires_recording_surface ( + cairo_pdf_surface_t *surface, + const cairo_surface_pattern_t *recording_surface, + cairo_analysis_source_t source_type); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_recording_source_surface_begin ( + cairo_pdf_surface_t *surface, + const cairo_surface_pattern_t *recording_surface_pattern, + unsigned int region_id, + cairo_analysis_source_t source_type); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_recording_source_surface_end ( + cairo_pdf_surface_t *surface, + const cairo_surface_pattern_t *recording_surface_pattern, + unsigned int region_id, + cairo_analysis_source_t source_type); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_emit_recording_surface_begin ( + cairo_pdf_surface_t *surface, + cairo_surface_t *recording_surface, + int region_id, + cairo_pdf_resource_t surface_resource, + int *struct_parents); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_emit_recording_surface_end ( + cairo_pdf_surface_t *surface, + cairo_surface_t *recording_surface); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_tag_end (cairo_pdf_surface_t *surface, + const char *name); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_command_id (cairo_pdf_surface_t *surface, + unsigned int recording_id, + unsigned int command_id); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_add_operation_extents (cairo_pdf_surface_t *surface, + const cairo_rectangle_int_t *extents); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_add_content (cairo_pdf_surface_t *surface); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_write_page_objects (cairo_pdf_surface_t *surface); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_write_document_objects (cairo_pdf_surface_t *surface); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_add_outline (cairo_pdf_surface_t *surface, + int parent_id, + const char *name, + const char *dest, + cairo_pdf_outline_flags_t flags, + int *id); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_set_metadata (cairo_pdf_surface_t *surface, + cairo_pdf_metadata_t metadata, + const char *utf8); + +cairo_private cairo_int_status_t +_cairo_pdf_interchange_set_custom_metadata (cairo_pdf_surface_t *surface, + const char *name, + const char *value); + +#endif /* CAIRO_PDF_SURFACE_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-pdf-surface.c b/local/recipes/libs/cairo/source/src/cairo-pdf-surface.c new file mode 100644 index 0000000000..3e734c7595 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-pdf-surface.c @@ -0,0 +1,9538 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 Red Hat, Inc + * Copyright © 2006 Red Hat, Inc + * Copyright © 2007, 2008 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Kristian Høgsberg + * Carl Worth + * Adrian Johnson + */ + +#define _DEFAULT_SOURCE /* for snprintf() */ +#include "cairoint.h" + +#include "cairo-pdf.h" +#include "cairo-pdf-surface-private.h" +#include "cairo-pdf-operators-private.h" +#include "cairo-pdf-shading-private.h" + +#include "cairo-array-private.h" +#include "cairo-analysis-surface-private.h" +#include "cairo-composite-rectangles-private.h" +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-user-font-private.h" +#include "cairo-image-surface-inline.h" +#include "cairo-image-info-private.h" +#include "cairo-recording-surface-inline.h" +#include "cairo-recording-surface-private.h" +#include "cairo-output-stream-private.h" +#include "cairo-paginated-private.h" +#include "cairo-scaled-font-subsets-private.h" +#include "cairo-surface-clipper-private.h" +#include "cairo-surface-snapshot-inline.h" +#include "cairo-surface-subsurface-private.h" +#include "cairo-type3-glyph-surface-private.h" + +#include + +/* + * Page Structure of the Generated PDF: + * + * Each page requiring fallbacks images contains a knockout group at + * the top level. The first operation of the knockout group paints a + * group containing all the supported drawing operations. Fallback + * images (if any) are painted in the knockout group. This ensures + * that fallback images do not composite with any content under the + * fallback images. + * + * Streams: + * + * This PDF surface has three types of streams: + * - PDF Stream + * - Content Stream + * - Group Stream + * - Object stream + * + * Calling _cairo_output_stream_printf (surface->output, ...) will + * write to the currently open stream. + * + * PDF Stream: + * A PDF Stream may be opened and closed with the following functions: + * _cairo_pdf_surface_open stream () + * _cairo_pdf_surface_close_stream () + * + * PDF Streams are written directly to the PDF file. They are used for + * fonts, images and patterns. + * + * Content Stream: + * The Content Stream is opened and closed with the following functions: + * _cairo_pdf_surface_open_content_stream () + * _cairo_pdf_surface_close_content_stream () + * + * The Content Stream contains the text and graphics operators. + * + * Group Stream: + * A Group Stream may be opened and closed with the following functions: + * _cairo_pdf_surface_open_group () + * _cairo_pdf_surface_close_group () + * + * A Group Stream is a Form XObject. It is used for short sequences + * of operators. As the content is very short the group is stored in + * memory until it is closed. This allows some optimization such as + * including the Resource dictionary and stream length inside the + * XObject instead of using an indirect object. + * + * Object Stream (PDF 1.5) + * An Object Stream may be opened and closed with the following functions: + * _cairo_pdf_surface_open_object_stream () + * _cairo_pdf_surface_close_object_stream () + * + * An Object Stream contains one or more objects compressed into a stream. + * Only non stream objects are permitted. When emitting objects intended for + * the Object Stream, enclose the emit object operation with + * _cairo_pdf_surface_object_begin()/_cairo_pdf_surface_object_end(). + */ + +/** + * SECTION:cairo-pdf + * @Title: PDF Surfaces + * @Short_Description: Rendering PDF documents + * @See_Also: #cairo_surface_t + * + * The PDF surface is used to render cairo graphics to Adobe + * PDF files and is a multi-page vector surface backend. + * + * The following mime types are supported on source patterns: + * %CAIRO_MIME_TYPE_JPEG, %CAIRO_MIME_TYPE_JP2, + * %CAIRO_MIME_TYPE_UNIQUE_ID, %CAIRO_MIME_TYPE_JBIG2, + * %CAIRO_MIME_TYPE_JBIG2_GLOBAL, %CAIRO_MIME_TYPE_JBIG2_GLOBAL_ID, + * %CAIRO_MIME_TYPE_CCITT_FAX, %CAIRO_MIME_TYPE_CCITT_FAX_PARAMS. + * + * # JBIG2 Images # + * JBIG2 data in PDF must be in the embedded format as described in + * ISO/IEC 11544. Image specific JBIG2 data must be in + * %CAIRO_MIME_TYPE_JBIG2. Any global segments in the JBIG2 data + * (segments with page association field set to 0) must be in + * %CAIRO_MIME_TYPE_JBIG2_GLOBAL. The global data may be shared by + * multiple images. All images sharing the same global data must set + * %CAIRO_MIME_TYPE_JBIG2_GLOBAL_ID to a unique identifier. At least + * one of the images must provide the global data using + * %CAIRO_MIME_TYPE_JBIG2_GLOBAL. The global data will only be + * embedded once and shared by all JBIG2 images with the same + * %CAIRO_MIME_TYPE_JBIG2_GLOBAL_ID. + * + * # CCITT Fax Images # {#ccitt} + * The %CAIRO_MIME_TYPE_CCITT_FAX mime data requires a number of decoding + * parameters These parameters are specified using %CAIRO_MIME_TYPE_CCITT_FAX_PARAMS. + * + * %CAIRO_MIME_TYPE_CCITT_FAX_PARAMS mime data must contain a string of the form + * "param1=value1 param2=value2 ...". + * + * @Columns: [required] An integer specifying the width of the image in pixels. + * + * @Rows: [required] An integer specifying the height of the image in scan lines. + * + * @K: [optional] An integer identifying the encoding scheme used. < 0 + * is 2 dimensional Group 4, = 0 is Group3 1 dimensional, > 0 is mixed 1 + * and 2 dimensional encoding. Default is 0. + * + * @EndOfLine: [optional] If true end-of-line bit patterns are present. Default is false. + * + * @EncodedByteAlign: [optional] If true the end of line is padded + * with 0 bits so the next line begins on a byte boundary. Default is false. + * + * @EndOfBlock: [optional] If true the data contains an end-of-block pattern. Default is true. + * + * @BlackIs1: [optional] If true 1 bits are black pixels. Default is false. + * + * @DamagedRowsBeforeError: [optional] An integer specifying the + * number of damages rows tolerated before an error occurs. Default is 0. + * + * Boolean values may be "true" or "false", or 1 or 0. + * + * These parameters are the same as the CCITTFaxDecode parameters in the + * [PostScript Language Reference](https://www.adobe.com/products/postscript/pdfs/PLRM.pdf) + * and [Portable Document Format (PDF)](https://www.adobe.com/content/dam/Adobe/en/devnet/pdf/pdfs/PDF32000_2008.pdf). + * Refer to these documents for further details. + * + * An example %CAIRO_MIME_TYPE_CCITT_FAX_PARAMS string is: + * + * + * "Columns=10230 Rows=40000 K=1 EndOfLine=true EncodedByteAlign=1 BlackIs1=false" + * + * + **/ + +static cairo_bool_t +_cairo_pdf_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle); + +/** + * CAIRO_HAS_PDF_SURFACE: + * + * Defined if the PDF surface backend is available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.2 + **/ + +static const cairo_pdf_version_t _cairo_pdf_versions[] = +{ + CAIRO_PDF_VERSION_1_4, + CAIRO_PDF_VERSION_1_5, + CAIRO_PDF_VERSION_1_6, + CAIRO_PDF_VERSION_1_7 +}; + +#define CAIRO_PDF_VERSION_LAST ARRAY_LENGTH (_cairo_pdf_versions) + +static const char * _cairo_pdf_version_strings[CAIRO_PDF_VERSION_LAST] = +{ + "PDF 1.4", + "PDF 1.5", + "PDF 1.6", + "PDF 1.7" +}; + +static const char *_cairo_pdf_supported_mime_types[] = +{ + CAIRO_MIME_TYPE_JPEG, + CAIRO_MIME_TYPE_JP2, + CAIRO_MIME_TYPE_UNIQUE_ID, + CAIRO_MIME_TYPE_JBIG2, + CAIRO_MIME_TYPE_JBIG2_GLOBAL, + CAIRO_MIME_TYPE_JBIG2_GLOBAL_ID, + CAIRO_MIME_TYPE_CCITT_FAX, + CAIRO_MIME_TYPE_CCITT_FAX_PARAMS, + NULL +}; + +/* PDF cross-reference stream types */ +typedef enum { + PDF_OBJECT_FREE = 0, + PDF_OBJECT_UNCOMPRESSED = 1, + PDF_OBJECT_COMPRESSED = 2, +} cairo_pdf_object_type_t; + +typedef struct _cairo_pdf_object { + cairo_pdf_object_type_t type; + union { + long long offset; /* type == PDF_OBJECT_UNCOMPRESSED */ + struct compressed_obj { /* type == PDF_OBJECT_COMPRESSED */ + cairo_pdf_resource_t xref_stream; + int index; + } compressed_obj; + } u; +} cairo_pdf_object_t; + +typedef struct _cairo_xref_stream_object { + cairo_pdf_resource_t resource; + long long offset; +} cairo_xref_stream_object_t; + +typedef struct _cairo_pdf_font { + unsigned int font_id; + unsigned int subset_id; + cairo_pdf_resource_t subset_resource; +} cairo_pdf_font_t; + +typedef struct _cairo_pdf_rgb_linear_function { + cairo_pdf_resource_t resource; + double color1[3]; + double color2[3]; +} cairo_pdf_rgb_linear_function_t; + +typedef struct _cairo_pdf_alpha_linear_function { + cairo_pdf_resource_t resource; + double alpha1; + double alpha2; +} cairo_pdf_alpha_linear_function_t; + +static void +_cairo_pdf_surface_clear (cairo_pdf_surface_t *surface, + cairo_bool_t clear_doc_surfaces); + +static void +_cairo_pdf_smask_group_destroy (cairo_pdf_smask_group_t *group); + +static cairo_int_status_t +_cairo_pdf_surface_add_font (unsigned int font_id, + unsigned int subset_id, + void *closure); + +static void +_cairo_pdf_group_resources_init (cairo_pdf_group_resources_t *res); + +static cairo_int_status_t +_cairo_pdf_surface_open_stream (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t *resource, + cairo_bool_t compressed, + const char *fmt, + ...) CAIRO_PRINTF_FORMAT(4, 5); +static cairo_int_status_t +_cairo_pdf_surface_close_stream (cairo_pdf_surface_t *surface); + +static cairo_int_status_t +_cairo_pdf_surface_emit_surface (cairo_pdf_surface_t *surface, + cairo_pdf_source_surface_t *source, + cairo_bool_t test, + cairo_bool_t *is_image); + +static cairo_int_status_t +_cairo_pdf_surface_write_page (cairo_pdf_surface_t *surface); + +static cairo_int_status_t +_cairo_pdf_surface_write_pages (cairo_pdf_surface_t *surface); + +static cairo_int_status_t +_cairo_pdf_surface_write_catalog (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t catalog); + +static long long +_cairo_pdf_surface_write_xref (cairo_pdf_surface_t *surface); + +static cairo_int_status_t +_cairo_pdf_surface_write_xref_stream (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t xref_res, + cairo_pdf_resource_t root_res, + cairo_pdf_resource_t info_res, + long long *xref_offset); + +static cairo_int_status_t +_cairo_pdf_surface_write_patterns_and_smask_groups (cairo_pdf_surface_t *surface, + cairo_bool_t finish); + +static cairo_int_status_t +_cairo_pdf_surface_emit_font_subsets (cairo_pdf_surface_t *surface); + +static cairo_bool_t +_cairo_pdf_source_surface_equal (const void *key_a, const void *key_b); + +static cairo_bool_t +_cairo_pdf_color_glyph_equal (const void *key_a, const void *key_b); + +static const cairo_surface_backend_t cairo_pdf_surface_backend; +static const cairo_paginated_surface_backend_t cairo_pdf_surface_paginated_backend; + +cairo_pdf_resource_t +_cairo_pdf_surface_new_object (cairo_pdf_surface_t *surface) +{ + cairo_pdf_resource_t resource; + cairo_int_status_t status; + cairo_pdf_object_t object; + + /* Default to Uncompressed. If this object is used with + * _cairo_pdf_surface_object_begin() and Object Streams are + * enabled it will be changed to Compressed. */ + object.type = PDF_OBJECT_UNCOMPRESSED; + object.u.offset = _cairo_output_stream_get_position (surface->output); + + status = _cairo_array_append (&surface->objects, &object); + if (unlikely (status)) { + resource.id = 0; + return resource; + } + + resource = surface->next_available_resource; + surface->next_available_resource.id++; + + return resource; +} + +void +_cairo_pdf_surface_update_object (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t resource) +{ + cairo_pdf_object_t *object; + + object = _cairo_array_index (&surface->objects, resource.id - 1); + object->u.offset = _cairo_output_stream_get_position (surface->output); +} + +static void +_cairo_pdf_surface_set_size_internal (cairo_pdf_surface_t *surface, + double width, + double height) +{ + surface->width = width; + surface->height = height; + surface->surface_extents.x = 0; + surface->surface_extents.y = 0; + surface->surface_extents.width = ceil (surface->width); + surface->surface_extents.height = ceil (surface->height); +} + +static cairo_bool_t +_path_covers_bbox (cairo_pdf_surface_t *surface, + cairo_path_fixed_t *path) +{ + cairo_box_t box; + + return _cairo_path_fixed_is_box (path, &box) && + box.p1.x <= 0 && + box.p1.y <= 0 && + box.p2.x >= _cairo_fixed_from_double (surface->width) && + box.p2.y >= _cairo_fixed_from_double (surface->height); +} + +static cairo_status_t +_cairo_pdf_surface_clipper_intersect_clip_path (cairo_surface_clipper_t *clipper, + cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_pdf_surface_t *surface = cairo_container_of (clipper, + cairo_pdf_surface_t, + clipper); + cairo_int_status_t status; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + if (path == NULL) { + _cairo_output_stream_printf (surface->output, "Q q\n"); + + surface->current_pattern_is_solid_color = FALSE; + surface->current_operator = CAIRO_OPERATOR_OVER; + _cairo_pdf_operators_reset (&surface->pdf_operators); + + return CAIRO_STATUS_SUCCESS; + } + + if (_path_covers_bbox (surface, path)) + return CAIRO_STATUS_SUCCESS; + + return _cairo_pdf_operators_clip (&surface->pdf_operators, path, fill_rule); +} + +static cairo_surface_t * +_cairo_pdf_surface_create_for_stream_internal (cairo_output_stream_t *output, + double width, + double height) +{ + cairo_pdf_surface_t *surface; + cairo_status_t status, status_ignored; + + surface = _cairo_calloc (sizeof (cairo_pdf_surface_t)); + if (unlikely (surface == NULL)) { + /* destroy stream on behalf of caller */ + status = _cairo_output_stream_destroy (output); + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + _cairo_surface_init (&surface->base, + &cairo_pdf_surface_backend, + NULL, /* device */ + CAIRO_CONTENT_COLOR_ALPHA, + TRUE); /* is_vector */ + + surface->output = output; + surface->width = width; + surface->height = height; + cairo_matrix_init (&surface->cairo_to_pdf, 1, 0, 0, 1, 0, 0); + surface->in_xobject = FALSE; + surface->surface_extents.x = 0; + surface->surface_extents.y = 0; + surface->surface_extents.width = ceil (surface->width); + surface->surface_extents.height = ceil (surface->height); + surface->surface_bounded = TRUE; + + _cairo_array_init (&surface->objects, sizeof (cairo_pdf_object_t)); + _cairo_array_init (&surface->pages, sizeof (cairo_pdf_page_info_t)); + _cairo_array_init (&surface->rgb_linear_functions, sizeof (cairo_pdf_rgb_linear_function_t)); + _cairo_array_init (&surface->alpha_linear_functions, sizeof (cairo_pdf_alpha_linear_function_t)); + _cairo_array_init (&surface->fonts, sizeof (cairo_pdf_font_t)); + _cairo_array_init (&surface->smask_groups, sizeof (cairo_pdf_smask_group_t *)); + _cairo_array_init (&surface->knockout_group, sizeof (cairo_pdf_resource_t)); + + _cairo_array_init (&surface->page_patterns, sizeof (cairo_pdf_pattern_t)); + _cairo_array_init (&surface->page_surfaces, sizeof (cairo_pdf_source_surface_t)); + _cairo_array_init (&surface->doc_surfaces, sizeof (cairo_pdf_source_surface_t)); + _cairo_array_init (&surface->jbig2_global, sizeof (cairo_pdf_jbig2_global_t)); + surface->all_surfaces = _cairo_hash_table_create (_cairo_pdf_source_surface_equal); + if (unlikely (surface->all_surfaces == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL0; + } + + surface->color_glyphs = _cairo_hash_table_create (_cairo_pdf_color_glyph_equal); + if (unlikely (surface->color_glyphs == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL1; + } + + surface->duplicate_surface_number = 0; + + _cairo_pdf_group_resources_init (&surface->resources); + + surface->font_subsets = _cairo_scaled_font_subsets_create_composite (); + if (! surface->font_subsets) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL2; + } + + _cairo_scaled_font_subsets_enable_latin_subset (surface->font_subsets, TRUE); + + surface->next_available_resource.id = 1; + surface->pages_resource = _cairo_pdf_surface_new_object (surface); + if (surface->pages_resource.id == 0) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL3; + } + + surface->struct_tree_root.id = 0; + surface->pdf_version = CAIRO_PDF_VERSION_1_7; + surface->compress_streams = TRUE; + surface->pdf_stream.active = FALSE; + surface->pdf_stream.old_output = NULL; + surface->group_stream.active = FALSE; + surface->group_stream.stream = NULL; + surface->group_stream.mem_stream = NULL; + surface->object_stream.active = FALSE; + surface->object_stream.stream = NULL; + _cairo_array_init (&surface->object_stream.objects, sizeof (cairo_xref_stream_object_t)); + + surface->paginated_mode = CAIRO_PAGINATED_MODE_ANALYZE; + surface->type3_replay = FALSE; + + surface->force_fallbacks = FALSE; + surface->select_pattern_gstate_saved = FALSE; + surface->current_pattern_is_solid_color = FALSE; + surface->current_operator = CAIRO_OPERATOR_OVER; + surface->reset_gs_required = FALSE; + surface->header_emitted = FALSE; + + _cairo_surface_clipper_init (&surface->clipper, + _cairo_pdf_surface_clipper_intersect_clip_path); + + _cairo_pdf_operators_init (&surface->pdf_operators, + surface->output, + &surface->cairo_to_pdf, + surface->font_subsets, + FALSE); + _cairo_pdf_operators_set_font_subsets_callback (&surface->pdf_operators, + _cairo_pdf_surface_add_font, + surface); + _cairo_pdf_operators_enable_actual_text(&surface->pdf_operators, TRUE); + + status = _cairo_pdf_interchange_init (surface); + if (unlikely (status)) + goto BAIL3; + + surface->page_parent_tree = -1; + _cairo_array_init (&surface->page_annots, sizeof (cairo_pdf_resource_t)); + surface->tagged = FALSE; + surface->current_page_label = NULL; + _cairo_array_init (&surface->page_labels, sizeof (char *)); + surface->outlines_dict_res.id = 0; + surface->names_dict_res.id = 0; + surface->docinfo_res.id = 0; + surface->page_labels_res.id = 0; + surface->thumbnail_width = 0; + surface->thumbnail_height = 0; + surface->thumbnail_image = NULL; + + surface->debug = FALSE; + if (getenv ("CAIRO_DEBUG_PDF") != NULL) { + surface->debug = TRUE; + surface->compress_streams = FALSE; + } + + surface->paginated_surface = _cairo_paginated_surface_create ( + &surface->base, + CAIRO_CONTENT_COLOR_ALPHA, + &cairo_pdf_surface_paginated_backend); + + status = surface->paginated_surface->status; + if (status == CAIRO_STATUS_SUCCESS) { + /* paginated keeps the only reference to surface now, drop ours */ + cairo_surface_destroy (&surface->base); + return surface->paginated_surface; + } + +BAIL3: + _cairo_scaled_font_subsets_destroy (surface->font_subsets); +BAIL2: + _cairo_hash_table_destroy (surface->color_glyphs); +BAIL1: + _cairo_hash_table_destroy (surface->all_surfaces); +BAIL0: + _cairo_array_fini (&surface->objects); + free (surface); + + /* destroy stream on behalf of caller */ + status_ignored = _cairo_output_stream_destroy (output); + + return _cairo_surface_create_in_error (status); +} + +/** + * cairo_pdf_surface_create_for_stream: + * @write_func: a #cairo_write_func_t to accept the output data, may be %NULL + * to indicate a no-op @write_func. With a no-op @write_func, + * the surface may be queried or used as a source without + * generating any temporary files. + * @closure: the closure argument for @write_func + * @width_in_points: width of the surface, in points (1 point == 1/72.0 inch) + * @height_in_points: height of the surface, in points (1 point == 1/72.0 inch) + * + * Creates a PDF surface of the specified size in points to be written + * incrementally to the stream represented by @write_func and @closure. + * + * Return value: a pointer to the newly created surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if an error such as out of memory + * occurs. You can use cairo_surface_status() to check for this. + * + * Since: 1.2 + **/ +cairo_surface_t * +cairo_pdf_surface_create_for_stream (cairo_write_func_t write_func, + void *closure, + double width_in_points, + double height_in_points) +{ + cairo_output_stream_t *output; + + output = _cairo_output_stream_create (write_func, NULL, closure); + if (_cairo_output_stream_get_status (output)) + return _cairo_surface_create_in_error (_cairo_output_stream_destroy (output)); + + return _cairo_pdf_surface_create_for_stream_internal (output, + width_in_points, + height_in_points); +} + +/** + * cairo_pdf_surface_create: + * @filename: a filename for the PDF output (must be writable), %NULL may be + * used to specify no output. This will generate a PDF surface that + * may be queried and used as a source, without generating a + * temporary file. + * @width_in_points: width of the surface, in points (1 point == 1/72.0 inch) + * @height_in_points: height of the surface, in points (1 point == 1/72.0 inch) + * + * Creates a PDF surface of the specified size in points to be written + * to @filename. + * + * Return value: a pointer to the newly created surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if an error such as out of memory + * occurs. You can use cairo_surface_status() to check for this. + * + * Since: 1.2 + **/ +cairo_surface_t * +cairo_pdf_surface_create (const char *filename, + double width_in_points, + double height_in_points) +{ + cairo_output_stream_t *output; + + output = _cairo_output_stream_create_for_filename (filename); + if (_cairo_output_stream_get_status (output)) + return _cairo_surface_create_in_error (_cairo_output_stream_destroy (output)); + + return _cairo_pdf_surface_create_for_stream_internal (output, + width_in_points, + height_in_points); +} + +static cairo_bool_t +_cairo_surface_is_pdf (cairo_surface_t *surface) +{ + return surface->backend == &cairo_pdf_surface_backend; +} + +/* If the abstract_surface is a paginated surface, and that paginated + * surface's target is a pdf_surface, then set pdf_surface to that + * target. Otherwise return FALSE. + */ +static cairo_bool_t +_extract_pdf_surface (cairo_surface_t *surface, + cairo_pdf_surface_t **pdf_surface) +{ + cairo_surface_t *target; + cairo_status_t status_ignored; + + if (surface->status) + return FALSE; + if (surface->finished) { + status_ignored = _cairo_surface_set_error (surface, + _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return FALSE; + } + + if (! _cairo_surface_is_paginated (surface)) { + status_ignored = _cairo_surface_set_error (surface, + _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + return FALSE; + } + + target = _cairo_paginated_surface_get_target (surface); + if (target->status) { + status_ignored = _cairo_surface_set_error (surface, + target->status); + return FALSE; + } + if (target->finished) { + status_ignored = _cairo_surface_set_error (surface, + _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return FALSE; + } + + if (! _cairo_surface_is_pdf (target)) { + status_ignored = _cairo_surface_set_error (surface, + _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + return FALSE; + } + + *pdf_surface = (cairo_pdf_surface_t *) target; + return TRUE; +} + +/** + * cairo_pdf_surface_restrict_to_version: + * @surface: a PDF #cairo_surface_t + * @version: PDF version + * + * Restricts the generated PDF file to @version. See cairo_pdf_get_versions() + * for a list of available version values that can be used here. + * + * This function should only be called before any drawing operations + * have been performed on the given surface. The simplest way to do + * this is to call this function immediately after creating the + * surface. + * + * Since: 1.10 + **/ +void +cairo_pdf_surface_restrict_to_version (cairo_surface_t *abstract_surface, + cairo_pdf_version_t version) +{ + cairo_pdf_surface_t *surface = NULL; /* hide compiler warning */ + + if (! _extract_pdf_surface (abstract_surface, &surface)) + return; + + if (version < CAIRO_PDF_VERSION_LAST) + surface->pdf_version = version; + + _cairo_pdf_operators_enable_actual_text(&surface->pdf_operators, + version >= CAIRO_PDF_VERSION_1_5); +} + +/** + * cairo_pdf_get_versions: + * @versions: supported version list + * @num_versions: list length + * + * Used to retrieve the list of supported versions. See + * cairo_pdf_surface_restrict_to_version(). + * + * Since: 1.10 + **/ +void +cairo_pdf_get_versions (cairo_pdf_version_t const **versions, + int *num_versions) +{ + if (versions != NULL) + *versions = _cairo_pdf_versions; + + if (num_versions != NULL) + *num_versions = CAIRO_PDF_VERSION_LAST; +} + +/** + * cairo_pdf_version_to_string: + * @version: a version id + * + * Get the string representation of the given @version id. This function + * will return %NULL if @version isn't valid. See cairo_pdf_get_versions() + * for a way to get the list of valid version ids. + * + * Return value: the string associated to given version. + * + * Since: 1.10 + **/ +const char * +cairo_pdf_version_to_string (cairo_pdf_version_t version) +{ + if (version < 0 || version >= CAIRO_PDF_VERSION_LAST) + return NULL; + + return _cairo_pdf_version_strings[version]; +} + +/** + * cairo_pdf_surface_set_size: + * @surface: a PDF #cairo_surface_t + * @width_in_points: new surface width, in points (1 point == 1/72.0 inch) + * @height_in_points: new surface height, in points (1 point == 1/72.0 inch) + * + * Changes the size of a PDF surface for the current (and + * subsequent) pages. + * + * This function should only be called before any drawing operations + * have been performed on the current page. The simplest way to do + * this is to call this function immediately after creating the + * surface or immediately after completing a page with either + * cairo_show_page() or cairo_copy_page(). + * + * Since: 1.2 + **/ +void +cairo_pdf_surface_set_size (cairo_surface_t *surface, + double width_in_points, + double height_in_points) +{ + cairo_pdf_surface_t *pdf_surface = NULL; /* hide compiler warning */ + cairo_status_t status; + + if (! _extract_pdf_surface (surface, &pdf_surface)) + return; + + _cairo_pdf_surface_set_size_internal (pdf_surface, + width_in_points, + height_in_points); + status = _cairo_paginated_surface_set_size (pdf_surface->paginated_surface, + width_in_points, + height_in_points); + if (status) + status = _cairo_surface_set_error (surface, status); +} + +/** + * CAIRO_PDF_OUTLINE_ROOT: + * + * The root outline item in cairo_pdf_surface_add_outline(). + * + * Since: 1.16 + **/ + +/** + * cairo_pdf_surface_add_outline: + * @surface: a PDF #cairo_surface_t + * @parent_id: the id of the parent item or %CAIRO_PDF_OUTLINE_ROOT if this is a top level item. + * @utf8: the name of the outline + * @link_attribs: the link attributes specifying where this outline links to + * @flags: outline item flags + * + * Add an item to the document outline hierarchy with the name @utf8 + * that links to the location specified by @link_attribs. Link + * attributes have the same keys and values as the [Link Tag][link], + * excluding the "rect" attribute. The item will be a child of the + * item with id @parent_id. Use %CAIRO_PDF_OUTLINE_ROOT as the parent + * id of top level items. + * + * Return value: the id for the added item. + * + * Since: 1.16 + **/ +int +cairo_pdf_surface_add_outline (cairo_surface_t *surface, + int parent_id, + const char *utf8, + const char *link_attribs, + cairo_pdf_outline_flags_t flags) +{ + cairo_pdf_surface_t *pdf_surface = NULL; /* hide compiler warning */ + cairo_status_t status; + int id = 0; + + if (! _extract_pdf_surface (surface, &pdf_surface)) + return 0; + + status = _cairo_pdf_interchange_add_outline (pdf_surface, + parent_id, + utf8, + link_attribs, + flags, + &id); + if (status) + status = _cairo_surface_set_error (surface, status); + + return id; +} + +/** + * cairo_pdf_surface_set_metadata: + * @surface: a PDF #cairo_surface_t + * @metadata: The metadata item to set. + * @utf8: metadata value + * + * Set document metadata. The %CAIRO_PDF_METADATA_CREATE_DATE and + * %CAIRO_PDF_METADATA_MOD_DATE values must be in ISO-8601 format: + * YYYY-MM-DDThh:mm:ss. An optional timezone of the form "[+/-]hh:mm" + * or "Z" for UTC time can be appended. All other metadata values can be any UTF-8 + * string. + * + * For example: + * + * cairo_pdf_surface_set_metadata (surface, CAIRO_PDF_METADATA_TITLE, "My Document"); + * cairo_pdf_surface_set_metadata (surface, CAIRO_PDF_METADATA_CREATE_DATE, "2015-12-31T23:59+02:00"); + * + * + * Since: 1.16 + **/ +void +cairo_pdf_surface_set_metadata (cairo_surface_t *surface, + cairo_pdf_metadata_t metadata, + const char *utf8) +{ + cairo_pdf_surface_t *pdf_surface = NULL; /* hide compiler warning */ + cairo_status_t status; + + if (! _extract_pdf_surface (surface, &pdf_surface)) + return; + + status = _cairo_pdf_interchange_set_metadata (pdf_surface, metadata, utf8); + if (status) + status = _cairo_surface_set_error (surface, status); +} + +/** + * cairo_pdf_surface_set_custom_metadata: + * @surface: a PDF #cairo_surface_t + * @name: The name of the custom metadata item to set (utf8). + * @value: The value of the metadata (utf8). + * + * Set custom document metadata. @name may be any string except for + * the following names reserved by PDF: "Title", "Author", "Subject", + * "Keywords", "Creator", "Producer", "CreationDate", "ModDate", + * "Trapped". + * + * If @value is NULL or an empty string, the @name metadata will not be set. + * + * For example: + * + * cairo_pdf_surface_set_custom_metadata (surface, "ISBN", "978-0123456789"); + * + * + * Since: 1.18 + **/ +void +cairo_pdf_surface_set_custom_metadata (cairo_surface_t *surface, + const char *name, + const char *value) +{ + cairo_pdf_surface_t *pdf_surface = NULL; /* hide compiler warning */ + cairo_status_t status; + + if (! _extract_pdf_surface (surface, &pdf_surface)) + return; + + status = _cairo_pdf_interchange_set_custom_metadata (pdf_surface, name, value); + if (status) + status = _cairo_surface_set_error (surface, status); +} + +/** + * cairo_pdf_surface_set_page_label: + * @surface: a PDF #cairo_surface_t + * @utf8: The page label. + * + * Set page label for the current page. + * + * Since: 1.16 + **/ +void +cairo_pdf_surface_set_page_label (cairo_surface_t *surface, + const char *utf8) +{ + cairo_pdf_surface_t *pdf_surface = NULL; /* hide compiler warning */ + + if (! _extract_pdf_surface (surface, &pdf_surface)) + return; + + free (pdf_surface->current_page_label); + pdf_surface->current_page_label = utf8 ? strdup (utf8) : NULL; +} + +/** + * cairo_pdf_surface_set_thumbnail_size: + * @surface: a PDF #cairo_surface_t + * @width: Thumbnail width. + * @height: Thumbnail height + * + * Set the thumbnail image size for the current and all subsequent + * pages. Setting a width or height of 0 disables thumbnails for the + * current and subsequent pages. + * + * Since: 1.16 + **/ +void +cairo_pdf_surface_set_thumbnail_size (cairo_surface_t *surface, + int width, + int height) +{ + cairo_pdf_surface_t *pdf_surface = NULL; /* hide compiler warning */ + + if (! _extract_pdf_surface (surface, &pdf_surface)) + return; + + pdf_surface->thumbnail_width = width; + pdf_surface->thumbnail_height = height; +} + +static void +_cairo_pdf_surface_clear (cairo_pdf_surface_t *surface, + cairo_bool_t clear_doc_surfaces) +{ + int i, size; + cairo_pdf_pattern_t *pattern; + cairo_pdf_source_surface_t *src_surface; + cairo_pdf_smask_group_t *group; + cairo_pdf_source_surface_t doc_surface; + + size = _cairo_array_num_elements (&surface->page_patterns); + for (i = 0; i < size; i++) { + pattern = (cairo_pdf_pattern_t *) _cairo_array_index (&surface->page_patterns, i); + cairo_pattern_destroy (pattern->pattern); + } + _cairo_array_truncate (&surface->page_patterns, 0); + + size = _cairo_array_num_elements (&surface->page_surfaces); + for (i = 0; i < size; i++) { + src_surface = (cairo_pdf_source_surface_t *) _cairo_array_index (&surface->page_surfaces, i); + if (src_surface->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) { + cairo_pattern_destroy (src_surface->raster_pattern); + } else { + if (_cairo_surface_is_recording (src_surface->surface) && src_surface->region_id != 0) + _cairo_recording_surface_region_array_remove (src_surface->surface, src_surface->region_id); + cairo_surface_destroy (src_surface->surface); + } + } + _cairo_array_truncate (&surface->page_surfaces, 0); + + size = _cairo_array_num_elements (&surface->smask_groups); + for (i = 0; i < size; i++) { + _cairo_array_copy_element (&surface->smask_groups, i, &group); + _cairo_pdf_smask_group_destroy (group); + } + _cairo_array_truncate (&surface->smask_groups, 0); + _cairo_array_truncate (&surface->knockout_group, 0); + _cairo_array_truncate (&surface->page_annots, 0); + + if (surface->thumbnail_image) + cairo_surface_destroy (&surface->thumbnail_image->base); + surface->thumbnail_image = NULL; + + if (clear_doc_surfaces) { + size = _cairo_array_num_elements (&surface->doc_surfaces); + for (i = 0; i < size; i++) { + _cairo_array_copy_element (&surface->doc_surfaces, i, &doc_surface); + if (doc_surface.type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) { + cairo_pattern_destroy (doc_surface.raster_pattern); + } else { + if (_cairo_surface_is_recording (doc_surface.surface) && doc_surface.region_id != 0) + _cairo_recording_surface_region_array_remove (doc_surface.surface, doc_surface.region_id); + cairo_surface_destroy (doc_surface.surface); + } + } + _cairo_array_truncate (&surface->doc_surfaces, 0); + } +} + +static void +_cairo_pdf_group_resources_init (cairo_pdf_group_resources_t *res) +{ + int i; + + for (i = 0; i < CAIRO_NUM_OPERATORS; i++) + res->operators[i] = FALSE; + + _cairo_array_init (&res->alphas, sizeof (double)); + _cairo_array_init (&res->smasks, sizeof (cairo_pdf_resource_t)); + _cairo_array_init (&res->patterns, sizeof (cairo_pdf_resource_t)); + _cairo_array_init (&res->shadings, sizeof (cairo_pdf_resource_t)); + _cairo_array_init (&res->xobjects, sizeof (cairo_pdf_resource_t)); + _cairo_array_init (&res->fonts, sizeof (cairo_pdf_font_t)); +} + +static void +_cairo_pdf_group_resources_fini (cairo_pdf_group_resources_t *res) +{ + _cairo_array_fini (&res->alphas); + _cairo_array_fini (&res->smasks); + _cairo_array_fini (&res->patterns); + _cairo_array_fini (&res->shadings); + _cairo_array_fini (&res->xobjects); + _cairo_array_fini (&res->fonts); +} + +static void +_cairo_pdf_group_resources_clear (cairo_pdf_group_resources_t *res) +{ + int i; + + for (i = 0; i < CAIRO_NUM_OPERATORS; i++) + res->operators[i] = FALSE; + + _cairo_array_truncate (&res->alphas, 0); + _cairo_array_truncate (&res->smasks, 0); + _cairo_array_truncate (&res->patterns, 0); + _cairo_array_truncate (&res->shadings, 0); + _cairo_array_truncate (&res->xobjects, 0); + _cairo_array_truncate (&res->fonts, 0); +} + +static void +_cairo_pdf_surface_add_operator (cairo_pdf_surface_t *surface, + cairo_operator_t op) +{ + cairo_pdf_group_resources_t *res = &surface->resources; + + res->operators[op] = TRUE; +} + +static cairo_int_status_t +_cairo_pdf_surface_add_alpha (cairo_pdf_surface_t *surface, + double alpha, + int *index) +{ + int num_alphas, i; + double other; + cairo_int_status_t status; + cairo_pdf_group_resources_t *res = &surface->resources; + + num_alphas = _cairo_array_num_elements (&res->alphas); + for (i = 0; i < num_alphas; i++) { + _cairo_array_copy_element (&res->alphas, i, &other); + if (alpha == other) { + *index = i; + return CAIRO_STATUS_SUCCESS; + } + } + + status = _cairo_array_append (&res->alphas, &alpha); + if (unlikely (status)) + return status; + + *index = _cairo_array_num_elements (&res->alphas) - 1; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_pdf_surface_add_smask (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t smask) +{ + return _cairo_array_append (&(surface->resources.smasks), &smask); +} + +static cairo_int_status_t +_cairo_pdf_surface_add_pattern (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t pattern) +{ + return _cairo_array_append (&(surface->resources.patterns), &pattern); +} + +static cairo_int_status_t +_cairo_pdf_surface_add_shading (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t shading) +{ + return _cairo_array_append (&(surface->resources.shadings), &shading); +} + + +static cairo_int_status_t +_cairo_pdf_surface_add_xobject (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t xobject) +{ + return _cairo_array_append (&(surface->resources.xobjects), &xobject); +} + +static cairo_int_status_t +_cairo_pdf_surface_add_font (unsigned int font_id, + unsigned int subset_id, + void *closure) +{ + cairo_pdf_surface_t *surface = closure; + cairo_pdf_font_t font; + int num_fonts, i; + cairo_int_status_t status; + cairo_pdf_group_resources_t *res = &surface->resources; + + num_fonts = _cairo_array_num_elements (&res->fonts); + for (i = 0; i < num_fonts; i++) { + _cairo_array_copy_element (&res->fonts, i, &font); + if (font.font_id == font_id && + font.subset_id == subset_id) + return CAIRO_STATUS_SUCCESS; + } + + num_fonts = _cairo_array_num_elements (&surface->fonts); + for (i = 0; i < num_fonts; i++) { + _cairo_array_copy_element (&surface->fonts, i, &font); + if (font.font_id == font_id && + font.subset_id == subset_id) + return _cairo_array_append (&res->fonts, &font); + } + + font.font_id = font_id; + font.subset_id = subset_id; + font.subset_resource = _cairo_pdf_surface_new_object (surface); + if (font.subset_resource.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_array_append (&surface->fonts, &font); + if (unlikely (status)) + return status; + + return _cairo_array_append (&res->fonts, &font); +} + +static cairo_pdf_resource_t +_cairo_pdf_surface_get_font_resource (cairo_pdf_surface_t *surface, + unsigned int font_id, + unsigned int subset_id) +{ + cairo_pdf_font_t font; + int num_fonts, i; + + num_fonts = _cairo_array_num_elements (&surface->fonts); + for (i = 0; i < num_fonts; i++) { + _cairo_array_copy_element (&surface->fonts, i, &font); + if (font.font_id == font_id && font.subset_id == subset_id) + return font.subset_resource; + } + + font.subset_resource.id = 0; + return font.subset_resource; +} + +static const char * +_cairo_operator_to_pdf_blend_mode (cairo_operator_t op) +{ + switch (op) { + /* The extend blend mode operators */ + case CAIRO_OPERATOR_MULTIPLY: return "Multiply"; + case CAIRO_OPERATOR_SCREEN: return "Screen"; + case CAIRO_OPERATOR_OVERLAY: return "Overlay"; + case CAIRO_OPERATOR_DARKEN: return "Darken"; + case CAIRO_OPERATOR_LIGHTEN: return "Lighten"; + case CAIRO_OPERATOR_COLOR_DODGE: return "ColorDodge"; + case CAIRO_OPERATOR_COLOR_BURN: return "ColorBurn"; + case CAIRO_OPERATOR_HARD_LIGHT: return "HardLight"; + case CAIRO_OPERATOR_SOFT_LIGHT: return "SoftLight"; + case CAIRO_OPERATOR_DIFFERENCE: return "Difference"; + case CAIRO_OPERATOR_EXCLUSION: return "Exclusion"; + case CAIRO_OPERATOR_HSL_HUE: return "Hue"; + case CAIRO_OPERATOR_HSL_SATURATION: return "Saturation"; + case CAIRO_OPERATOR_HSL_COLOR: return "Color"; + case CAIRO_OPERATOR_HSL_LUMINOSITY: return "Luminosity"; + + default: + /* The original Porter-Duff set */ + case CAIRO_OPERATOR_CLEAR: + case CAIRO_OPERATOR_SOURCE: + case CAIRO_OPERATOR_OVER: + case CAIRO_OPERATOR_IN: + case CAIRO_OPERATOR_OUT: + case CAIRO_OPERATOR_ATOP: + case CAIRO_OPERATOR_DEST: + case CAIRO_OPERATOR_DEST_OVER: + case CAIRO_OPERATOR_DEST_IN: + case CAIRO_OPERATOR_DEST_OUT: + case CAIRO_OPERATOR_DEST_ATOP: + case CAIRO_OPERATOR_XOR: + case CAIRO_OPERATOR_ADD: + case CAIRO_OPERATOR_SATURATE: + return "Normal"; + } +} + +static void +_cairo_pdf_surface_emit_group_resources (cairo_pdf_surface_t *surface, + cairo_pdf_group_resources_t *res, + cairo_bool_t gs0) +{ + int num_alphas, num_smasks, num_resources, i; + double alpha; + cairo_pdf_resource_t *smask, *pattern, *shading, *xobject; + cairo_pdf_font_t *font; + + _cairo_output_stream_printf (surface->output, "<<\n"); + + num_alphas = _cairo_array_num_elements (&res->alphas); + num_smasks = _cairo_array_num_elements (&res->smasks); + if (num_alphas > 0 || num_smasks > 0) { + _cairo_output_stream_printf (surface->output, + " /ExtGState <<\n"); + + if (gs0) { + _cairo_output_stream_printf (surface->output, + " /gs0 << /BM /Normal /SMask /None /CA 1.0 /ca 1.0 >>\n"); + } + + for (i = 0; i < CAIRO_NUM_OPERATORS; i++) { + if (res->operators[i]) { + _cairo_output_stream_printf (surface->output, + " /b%d << /BM /%s >>\n", + i, _cairo_operator_to_pdf_blend_mode(i)); + } + } + + for (i = 0; i < num_alphas; i++) { + _cairo_array_copy_element (&res->alphas, i, &alpha); + _cairo_output_stream_printf (surface->output, + " /a%d << /CA %f /ca %f >>\n", + i, alpha, alpha); + } + + for (i = 0; i < num_smasks; i++) { + smask = _cairo_array_index (&res->smasks, i); + _cairo_output_stream_printf (surface->output, + " /s%d %d 0 R\n", + smask->id, smask->id); + } + + _cairo_output_stream_printf (surface->output, + " >>\n"); + } + + num_resources = _cairo_array_num_elements (&res->patterns); + if (num_resources > 0) { + _cairo_output_stream_printf (surface->output, + " /Pattern <<"); + for (i = 0; i < num_resources; i++) { + pattern = _cairo_array_index (&res->patterns, i); + _cairo_output_stream_printf (surface->output, + " /p%d %d 0 R", + pattern->id, pattern->id); + } + + _cairo_output_stream_printf (surface->output, + " >>\n"); + } + + num_resources = _cairo_array_num_elements (&res->shadings); + if (num_resources > 0) { + _cairo_output_stream_printf (surface->output, + " /Shading <<"); + for (i = 0; i < num_resources; i++) { + shading = _cairo_array_index (&res->shadings, i); + _cairo_output_stream_printf (surface->output, + " /sh%d %d 0 R", + shading->id, shading->id); + } + + _cairo_output_stream_printf (surface->output, + " >>\n"); + } + + num_resources = _cairo_array_num_elements (&res->xobjects); + if (num_resources > 0) { + _cairo_output_stream_printf (surface->output, + " /XObject <<"); + + for (i = 0; i < num_resources; i++) { + xobject = _cairo_array_index (&res->xobjects, i); + _cairo_output_stream_printf (surface->output, + " /x%d %d 0 R", + xobject->id, xobject->id); + } + + _cairo_output_stream_printf (surface->output, + " >>\n"); + } + + num_resources = _cairo_array_num_elements (&res->fonts); + if (num_resources > 0) { + _cairo_output_stream_printf (surface->output," /Font <<\n"); + for (i = 0; i < num_resources; i++) { + font = _cairo_array_index (&res->fonts, i); + _cairo_output_stream_printf (surface->output, + " /f-%d-%d %d 0 R\n", + font->font_id, + font->subset_id, + font->subset_resource.id); + } + _cairo_output_stream_printf (surface->output, " >>\n"); + } + + _cairo_output_stream_printf (surface->output, + ">>\n"); +} + +static cairo_pdf_smask_group_t * +_cairo_pdf_surface_create_smask_group (cairo_pdf_surface_t *surface, + const cairo_rectangle_int_t *extents) +{ + cairo_pdf_smask_group_t *group; + + group = _cairo_calloc (sizeof (cairo_pdf_smask_group_t)); + if (unlikely (group == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return NULL; + } + + group->group_res = _cairo_pdf_surface_new_object (surface); + if (group->group_res.id == 0) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + free (group); + return NULL; + } + group->width = surface->width; + group->height = surface->height; + if (extents != NULL) { + group->extents = *extents; + } else { + group->extents.x = 0; + group->extents.y = 0; + group->extents.width = surface->width; + group->extents.height = surface->height; + } + + return group; +} + +static void +_cairo_pdf_smask_group_destroy (cairo_pdf_smask_group_t *group) +{ + if (group->operation == PDF_FILL || group->operation == PDF_STROKE) + _cairo_path_fixed_fini (&group->path); + if (group->source) + cairo_pattern_destroy (group->source); + if (group->mask) + cairo_pattern_destroy (group->mask); + free (group->utf8); + free (group->glyphs); + free (group->clusters); + if (group->scaled_font) + cairo_scaled_font_destroy (group->scaled_font); + free (group); +} + +static cairo_int_status_t +_cairo_pdf_surface_add_smask_group (cairo_pdf_surface_t *surface, + cairo_pdf_smask_group_t *group) +{ + return _cairo_array_append (&surface->smask_groups, &group); +} + +static cairo_bool_t +_cairo_pdf_source_surface_equal (const void *key_a, const void *key_b) +{ + const cairo_pdf_source_surface_entry_t *a = key_a; + const cairo_pdf_source_surface_entry_t *b = key_b; + + if (a->interpolate != b->interpolate) + return FALSE; + + if (a->region_id != b->region_id) + return FALSE; + + if (a->unique_id && b->unique_id && a->unique_id_length == b->unique_id_length) + return (memcmp (a->unique_id, b->unique_id, a->unique_id_length) == 0); + + return (a->id == b->id); +} + +static void +_cairo_pdf_source_surface_init_key (cairo_pdf_source_surface_entry_t *key) +{ + if (key->unique_id && key->unique_id_length > 0) { + key->base.hash = _cairo_hash_bytes (_CAIRO_HASH_INIT_VALUE, + key->unique_id, key->unique_id_length); + } else { + key->base.hash = key->id; + } + key->base.hash = _cairo_hash_bytes (key->base.hash, + &key->region_id, + sizeof(key->region_id)); +} + +static cairo_bool_t +_cairo_pdf_color_glyph_equal (const void *key_a, const void *key_b) +{ + const cairo_pdf_color_glyph_t *a = key_a; + const cairo_pdf_color_glyph_t *b = key_b; + + if (a->scaled_font != b->scaled_font) + return FALSE; + + return (a->glyph_index == b->glyph_index); +} + +static void +_cairo_pdf_color_glyph_init_key (cairo_pdf_color_glyph_t *key) +{ + key->base.hash = _cairo_hash_uintptr (_CAIRO_HASH_INIT_VALUE, (uintptr_t)key->scaled_font); + key->base.hash = _cairo_hash_uintptr (key->base.hash, key->glyph_index); +} + +static cairo_int_status_t +_cairo_pdf_surface_acquire_source_image_from_pattern (cairo_pdf_surface_t *surface, + const cairo_pattern_t *pattern, + cairo_image_surface_t **image, + void **image_extra) +{ + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SURFACE: { + cairo_surface_pattern_t *surf_pat = (cairo_surface_pattern_t *) pattern; + return _cairo_surface_acquire_source_image (surf_pat->surface, image, image_extra); + } break; + + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: { + cairo_surface_t *surf; + surf = _cairo_raster_source_pattern_acquire (pattern, &surface->base, NULL); + if (!surf) + return CAIRO_INT_STATUS_UNSUPPORTED; + assert (_cairo_surface_is_image (surf)); + *image = (cairo_image_surface_t *) surf; + } break; + + case CAIRO_PATTERN_TYPE_SOLID: + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + case CAIRO_PATTERN_TYPE_MESH: + default: + ASSERT_NOT_REACHED; + break; + } + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_pdf_surface_release_source_image_from_pattern (cairo_pdf_surface_t *surface, + const cairo_pattern_t *pattern, + cairo_image_surface_t *image, + void *image_extra) +{ + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SURFACE: { + cairo_surface_pattern_t *surf_pat = (cairo_surface_pattern_t *) pattern; + _cairo_surface_release_source_image (surf_pat->surface, image, image_extra); + } break; + + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + _cairo_raster_source_pattern_release (pattern, &image->base); + break; + + case CAIRO_PATTERN_TYPE_SOLID: + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + case CAIRO_PATTERN_TYPE_MESH: + default: + + ASSERT_NOT_REACHED; + break; + } +} + +static cairo_int_status_t +_get_source_surface_extents (cairo_surface_t *source, + cairo_rectangle_int_t *extents, + cairo_bool_t *bounded, + cairo_bool_t *subsurface) +{ + cairo_int_status_t status; + + *bounded = TRUE; + *subsurface = FALSE; + if (source->type == CAIRO_SURFACE_TYPE_RECORDING) { + cairo_surface_t *free_me = NULL; + + if (_cairo_surface_is_snapshot (source)) + free_me = source = _cairo_surface_snapshot_get_target (source); + + if (source->backend->type == CAIRO_SURFACE_TYPE_SUBSURFACE) { + cairo_surface_subsurface_t *sub = (cairo_surface_subsurface_t *) source; + + *extents = sub->extents; + *subsurface = TRUE; + } else { + cairo_box_t box; + + *bounded = _cairo_surface_get_extents (source, extents); + if (! *bounded) { + status = _cairo_recording_surface_get_ink_bbox ((cairo_recording_surface_t *)source, + &box, NULL); + if (unlikely (status)) { + cairo_surface_destroy (free_me); + return status; + } + _cairo_box_round_to_rectangle (&box, extents); + } + } + cairo_surface_destroy (free_me); + } else { + *bounded = _cairo_surface_get_extents (source, extents); + } + + return CAIRO_STATUS_SUCCESS; +} + +/** + * _cairo_pdf_surface_add_source_surface: + * @surface: [in] the pdf surface + * @source_surface: [in] A #cairo_surface_t to use as the source surface + * @source_pattern: [in] A #cairo_pattern_t of type SURFACE or RASTER_SOURCE to use as the source + * @region_id: [in] Surfaces containing tags set this to the recording + * surface region id. When tags are used in a XObject, PDF requires a + * separate object for each use (section 14.7.4.2) @region_id is used + * as a key to ensure a separate object is emitted for each use. Set + * to 0 for surfaces without tags. + * @op: [in] the operator used to composite this source + * @filter: [in] filter type of the source pattern + * @stencil_mask: [in] if true, the surface will be written to the PDF as an /ImageMask + * @smask: [in] if true, only the alpha channel will be written (images only) + * @need_transp_group: [in] if true and an XObject is used, make it a Transparency group + * @extents: [in] extents of the operation that is using this source + * @smask_res: [in] if not NULL, the image written will specify this resource as the smask for + * the image (images only) + * @pdf_source: [out] return pdf_source_surface entry in hash table + * @x_offset: [out] if not NULL return x offset of surface + * @y_offset: [out] if not NULL return y offset of surface + * @source_extents: [out] if not NULL return operation extents in source space + * + * Add surface or raster_source pattern to list of surfaces to be + * written to the PDF file when the current page is finished. Returns + * a PDF resource to reference the surface. A hash table of all + * surfaces in the PDF file (keyed by CAIRO_MIME_TYPE_UNIQUE_ID or + * surface unique_id) is used to ensure surfaces with the same id are + * only written once to the PDF file. + * + * Only one of @source_pattern or @source_surface is to be + * specified. Set the other to NULL. + **/ +static cairo_int_status_t +_cairo_pdf_surface_add_source_surface (cairo_pdf_surface_t *surface, + cairo_surface_t *source_surface, + const cairo_pattern_t *source_pattern, + int region_id, + cairo_operator_t op, + cairo_filter_t filter, + cairo_bool_t stencil_mask, + cairo_bool_t smask, + cairo_bool_t need_transp_group, + const cairo_rectangle_int_t *extents, + cairo_pdf_resource_t *smask_res, + cairo_pdf_source_surface_entry_t **pdf_source, + double *x_offset, + double *y_offset, + cairo_rectangle_int_t *source_extents) +{ + cairo_pdf_source_surface_t src_surface; + cairo_pdf_source_surface_entry_t surface_key; + cairo_pdf_source_surface_entry_t *surface_entry; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_bool_t interpolate; + unsigned char *unique_id = NULL; + unsigned long unique_id_length = 0; + cairo_image_surface_t *image; + void *image_extra; + cairo_box_t box; + cairo_rectangle_int_t op_extents; + double x, y; + cairo_bool_t subsurface; + cairo_bool_t emit_image; + + switch (filter) { + default: + case CAIRO_FILTER_GOOD: + case CAIRO_FILTER_BEST: + case CAIRO_FILTER_BILINEAR: + interpolate = TRUE; + break; + case CAIRO_FILTER_FAST: + case CAIRO_FILTER_NEAREST: + case CAIRO_FILTER_GAUSSIAN: + interpolate = FALSE; + break; + } + + x = 0; + y = 0; + if (source_pattern) { + if (source_pattern->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) { + status = _cairo_pdf_surface_acquire_source_image_from_pattern (surface, source_pattern, + &image, &image_extra); + if (unlikely (status)) + return status; + source_surface = &image->base; + cairo_surface_get_device_offset (source_surface, &x, &y); + } else { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) source_pattern; + source_surface = surface_pattern->surface; + } + } + if (x_offset) + *x_offset = x; + if (y_offset) + *y_offset = y; + + /* transform operation extents to pattern space */ + op_extents = *extents; + if (source_pattern) + { + _cairo_box_from_rectangle (&box, extents); + _cairo_matrix_transform_bounding_box_fixed (&source_pattern->matrix, &box, NULL); + _cairo_box_round_to_rectangle (&box, &op_extents); + } + if (source_extents) + *source_extents = op_extents; + + surface_key.id = source_surface->unique_id; + + /* Recording surfaces do not use interpolate. Ensure it is always + * false for recording surfaces. This is because pdf-interchange + * needs to lookup recording surfaces in the hash table using + * interpolate = FALSE in the key since it does not know the + * interpolate value passed to this function. + */ + emit_image = source_surface->type != CAIRO_SURFACE_TYPE_RECORDING; + surface_key.interpolate = emit_image ? interpolate : FALSE; + + cairo_surface_get_mime_data (source_surface, CAIRO_MIME_TYPE_UNIQUE_ID, + (const unsigned char **) &surface_key.unique_id, + &surface_key.unique_id_length); + + surface_key.region_id = region_id; + _cairo_pdf_source_surface_init_key (&surface_key); + surface_entry = _cairo_hash_table_lookup (surface->all_surfaces, &surface_key.base); + if (surface_entry) { + if (pdf_source) + *pdf_source = surface_entry; + + if (source_pattern && source_pattern->extend != CAIRO_EXTEND_NONE) + _cairo_unbounded_rectangle_init (&op_extents); + + _cairo_rectangle_intersect (&op_extents, &surface_entry->extents); + _cairo_rectangle_union (&surface_entry->required_extents, &op_extents); + status = CAIRO_STATUS_SUCCESS; + } + + if (status || surface_entry) { + if (source_pattern && source_pattern->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) + _cairo_pdf_surface_release_source_image_from_pattern (surface, source_pattern, image, image_extra); + return status; + } + + if (surface_key.unique_id && surface_key.unique_id_length > 0) { + unique_id = _cairo_malloc (surface_key.unique_id_length); + if (unique_id == NULL) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail1; + } + + unique_id_length = surface_key.unique_id_length; + memcpy (unique_id, surface_key.unique_id, unique_id_length); + } else { + unique_id = NULL; + unique_id_length = 0; + } + + surface_entry = _cairo_calloc (sizeof (cairo_pdf_source_surface_entry_t)); + if (surface_entry == NULL) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail1; + } + + if (pdf_source) + *pdf_source = surface_entry; + + surface_entry->id = surface_key.id; + surface_entry->region_id = region_id; + surface_entry->operator = op; + surface_entry->interpolate = emit_image ? interpolate : FALSE; + surface_entry->emit_image = emit_image; + surface_entry->stencil_mask = stencil_mask; + surface_entry->smask = smask; + surface_entry->need_transp_group = need_transp_group; + surface_entry->unique_id_length = unique_id_length; + surface_entry->unique_id = unique_id; + if (smask_res) + surface_entry->smask_res = *smask_res; + else + surface_entry->smask_res.id = 0; + + status = _get_source_surface_extents (source_surface, + &surface_entry->extents, + &surface_entry->bounded, + &subsurface); + if (unlikely (status)) + goto fail2; + + if (subsurface) { + *x_offset = -surface_entry->extents.x; + *y_offset = -surface_entry->extents.y; + } + + if (source_pattern && source_pattern->extend != CAIRO_EXTEND_NONE) + _cairo_unbounded_rectangle_init (&op_extents); + + _cairo_rectangle_intersect (&op_extents, &surface_entry->extents); + surface_entry->required_extents = op_extents; + + _cairo_pdf_source_surface_init_key (surface_entry); + + src_surface.hash_entry = surface_entry; + src_surface.region_id = 0; + if (source_pattern && source_pattern->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) { + src_surface.type = CAIRO_PATTERN_TYPE_RASTER_SOURCE; + src_surface.surface = NULL; + status = _cairo_pattern_create_copy (&src_surface.raster_pattern, source_pattern); + if (unlikely (status)) + goto fail2; + + } else { + src_surface.type = CAIRO_PATTERN_TYPE_SURFACE; + src_surface.surface = cairo_surface_reference (source_surface); + src_surface.raster_pattern = NULL; + if (source_pattern) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) source_pattern; + src_surface.region_id = surface_pattern->region_array_id; + if (_cairo_surface_is_recording (surface_pattern->surface) && + surface_pattern->region_array_id != 0) + { + _cairo_recording_surface_region_array_reference (surface_pattern->surface, + surface_pattern->region_array_id); + } + } + } + + surface_entry->surface_res = _cairo_pdf_surface_new_object (surface); + if (surface_entry->surface_res.id == 0) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail3; + } + + if (surface_entry->bounded) { + status = _cairo_array_append (&surface->page_surfaces, &src_surface); + if (unlikely (status)) + goto fail3; + } else { + status = _cairo_array_append (&surface->doc_surfaces, &src_surface); + if (unlikely (status)) + goto fail3; + } + + status = _cairo_hash_table_insert (surface->all_surfaces, + &surface_entry->base); + if (unlikely(status)) + goto fail3; + + if (source_pattern && source_pattern->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) + _cairo_pdf_surface_release_source_image_from_pattern (surface, source_pattern, image, image_extra); + + return CAIRO_STATUS_SUCCESS; + +fail3: + if (source_pattern && source_pattern->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) + cairo_pattern_destroy (src_surface.raster_pattern); + else + cairo_surface_destroy (src_surface.surface); + +fail2: + free (surface_entry); + +fail1: + if (unique_id) + free (unique_id); + + if (source_pattern && source_pattern->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) + _cairo_pdf_surface_release_source_image_from_pattern (surface, source_pattern, image, image_extra); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_add_pdf_pattern_or_shading (cairo_pdf_surface_t *surface, + const cairo_pattern_t *pattern, + cairo_operator_t op, + cairo_analysis_source_t source_type, + const cairo_rectangle_int_t *extents, + cairo_bool_t is_shading, + cairo_pdf_resource_t *pattern_res, + cairo_pdf_resource_t *gstate_res) +{ + cairo_pdf_pattern_t pdf_pattern; + cairo_int_status_t status; + int region_id = 0; + + pdf_pattern.is_shading = is_shading; + pdf_pattern.operator = op; + + /* Solid colors are emitted into the content stream */ + if (pattern->type == CAIRO_PATTERN_TYPE_SOLID) { + pattern_res->id = 0; + gstate_res->id = 0; + return CAIRO_INT_STATUS_SUCCESS; + } + + status = _cairo_pattern_create_copy (&pdf_pattern.pattern, pattern); + if (unlikely (status)) + return status; + + pdf_pattern.pattern_res = _cairo_pdf_surface_new_object (surface); + if (pdf_pattern.pattern_res.id == 0) { + cairo_pattern_destroy (pdf_pattern.pattern); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + pdf_pattern.gstate_res.id = 0; + + /* gradient patterns require an smask object to implement transparency */ + if (pattern->type == CAIRO_PATTERN_TYPE_LINEAR || + pattern->type == CAIRO_PATTERN_TYPE_RADIAL || + pattern->type == CAIRO_PATTERN_TYPE_MESH) + { + double min_alpha; + + _cairo_pattern_alpha_range (pattern, &min_alpha, NULL); + if (! CAIRO_ALPHA_IS_OPAQUE (min_alpha)) { + pdf_pattern.gstate_res = _cairo_pdf_surface_new_object (surface); + if (pdf_pattern.gstate_res.id == 0) { + cairo_pattern_destroy (pdf_pattern.pattern); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + } + } + + pdf_pattern.width = surface->width; + pdf_pattern.height = surface->height; + if (extents != NULL) { + pdf_pattern.extents = *extents; + } else { + pdf_pattern.extents.x = 0; + pdf_pattern.extents.y = 0; + pdf_pattern.extents.width = surface->width; + pdf_pattern.extents.height = surface->height; + } + + *pattern_res = pdf_pattern.pattern_res; + *gstate_res = pdf_pattern.gstate_res; + /* If the pattern requires a gstate it will be drawn from within + * an XObject. The initial space of each XObject has an inverted + * Y-axis. */ + pdf_pattern.inverted_y_axis = pdf_pattern.gstate_res.id ? TRUE : surface->in_xobject; + + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) pattern; + if (_cairo_pdf_interchange_struct_tree_requires_recording_surface (surface, + surface_pattern, + source_type)) + { + region_id = surface_pattern->region_array_id; + } + } + pdf_pattern.region_id = region_id; + + status = _cairo_array_append (&surface->page_patterns, &pdf_pattern); + if (unlikely (status)) { + cairo_pattern_destroy (pdf_pattern.pattern); + return status; + } + + return CAIRO_INT_STATUS_SUCCESS; +} + +/* Get BBox from extents */ +static void +_get_bbox_from_extents (const cairo_rectangle_int_t *extents, + cairo_box_double_t *bbox) +{ + bbox->p1.x = extents->x; + bbox->p1.y = extents->y; + bbox->p2.x = extents->x + extents->width; + bbox->p2.y = extents->y + extents->height; +} + +static cairo_int_status_t +_cairo_pdf_surface_add_pdf_shading (cairo_pdf_surface_t *surface, + const cairo_pattern_t *pattern, + cairo_operator_t op, + const cairo_rectangle_int_t *extents, + cairo_pdf_resource_t *shading_res, + cairo_pdf_resource_t *gstate_res) +{ + return _cairo_pdf_surface_add_pdf_pattern_or_shading (surface, + pattern, + op, + CAIRO_ANALYSIS_SOURCE_NONE, + extents, + TRUE, + shading_res, + gstate_res); +} + +static cairo_int_status_t +_cairo_pdf_surface_add_pdf_pattern (cairo_pdf_surface_t *surface, + const cairo_pattern_t *pattern, + cairo_operator_t op, + cairo_analysis_source_t source_type, + const cairo_rectangle_int_t *extents, + cairo_pdf_resource_t *pattern_res, + cairo_pdf_resource_t *gstate_res) +{ + return _cairo_pdf_surface_add_pdf_pattern_or_shading (surface, + pattern, + op, + source_type, + extents, + FALSE, + pattern_res, + gstate_res); +} + +static cairo_int_status_t +_cairo_pdf_surface_open_stream (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t *resource, + cairo_bool_t compressed, + const char *fmt, + ...) +{ + va_list ap; + cairo_pdf_resource_t self, length; + cairo_output_stream_t *output = NULL; + + if (resource) { + self = *resource; + _cairo_pdf_surface_update_object (surface, self); + } else { + self = _cairo_pdf_surface_new_object (surface); + if (self.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + length = _cairo_pdf_surface_new_object (surface); + if (length.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (compressed) { + output = _cairo_deflate_stream_create (surface->output); + if (_cairo_output_stream_get_status (output)) + return _cairo_output_stream_destroy (output); + } + + surface->pdf_stream.active = TRUE; + surface->pdf_stream.self = self; + surface->pdf_stream.length = length; + surface->pdf_stream.compressed = compressed; + surface->current_pattern_is_solid_color = FALSE; + surface->current_operator = CAIRO_OPERATOR_OVER; + _cairo_pdf_operators_reset (&surface->pdf_operators); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Length %d 0 R\n", + surface->pdf_stream.self.id, + surface->pdf_stream.length.id); + if (compressed) + _cairo_output_stream_printf (surface->output, + " /Filter /FlateDecode\n"); + + if (fmt != NULL) { + va_start (ap, fmt); + _cairo_output_stream_vprintf (surface->output, fmt, ap); + va_end (ap); + } + + _cairo_output_stream_printf (surface->output, + ">>\n" + "stream\n"); + + surface->pdf_stream.start_offset = _cairo_output_stream_get_position (surface->output); + + if (compressed) { + assert (surface->pdf_stream.old_output == NULL); + surface->pdf_stream.old_output = surface->output; + surface->output = output; + _cairo_pdf_operators_set_stream (&surface->pdf_operators, surface->output); + } + _cairo_pdf_operators_reset (&surface->pdf_operators); + + return _cairo_output_stream_get_status (surface->output); +} + +static cairo_int_status_t +_cairo_pdf_surface_close_stream (cairo_pdf_surface_t *surface) +{ + cairo_int_status_t status; + long long length; + + if (! surface->pdf_stream.active) + return CAIRO_INT_STATUS_SUCCESS; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + + if (surface->pdf_stream.compressed) { + cairo_int_status_t status2; + + status2 = _cairo_output_stream_destroy (surface->output); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = status2; + + surface->output = surface->pdf_stream.old_output; + _cairo_pdf_operators_set_stream (&surface->pdf_operators, surface->output); + surface->pdf_stream.old_output = NULL; + } + + length = _cairo_output_stream_get_position (surface->output) - + surface->pdf_stream.start_offset; + _cairo_output_stream_printf (surface->output, + "\n" + "endstream\n" + "endobj\n"); + + _cairo_pdf_surface_update_object (surface, + surface->pdf_stream.length); + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + " %lld\n" + "endobj\n", + surface->pdf_stream.length.id, + length); + + surface->pdf_stream.active = FALSE; + + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = _cairo_output_stream_get_status (surface->output); + + return status; +} + +static void +_cairo_pdf_surface_write_memory_stream (cairo_pdf_surface_t *surface, + cairo_output_stream_t *mem_stream, + cairo_pdf_resource_t resource, + cairo_pdf_group_resources_t *resources, + cairo_bool_t is_knockout_group, + const cairo_box_double_t *bbox) +{ + _cairo_pdf_surface_update_object (surface, resource); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /XObject\n" + " /Length %d\n", + resource.id, + _cairo_memory_stream_length (mem_stream)); + + if (surface->compress_streams) { + _cairo_output_stream_printf (surface->output, + " /Filter /FlateDecode\n"); + } + + _cairo_output_stream_printf (surface->output, + " /Subtype /Form\n" + " /BBox [ %f %f %f %f ]\n" + " /Group <<\n" + " /Type /Group\n" + " /S /Transparency\n" + " /I true\n" + " /CS /DeviceRGB\n", + bbox->p1.x, bbox->p1.y, bbox->p2.x, bbox->p2.y); + + if (is_knockout_group) + _cairo_output_stream_printf (surface->output, + " /K true\n"); + + _cairo_output_stream_printf (surface->output, + " >>\n" + " /Resources\n"); + _cairo_pdf_surface_emit_group_resources (surface, resources, TRUE); + _cairo_output_stream_printf (surface->output, + ">>\n" + "stream\n"); + _cairo_memory_stream_copy (mem_stream, surface->output); + _cairo_output_stream_printf (surface->output, + "endstream\n" + "endobj\n"); +} + +static cairo_int_status_t +_cairo_pdf_surface_open_group (cairo_pdf_surface_t *surface, + const cairo_box_double_t *bbox, + cairo_pdf_resource_t *resource) +{ + cairo_int_status_t status; + + assert (surface->pdf_stream.active == FALSE); + assert (surface->group_stream.active == FALSE); + + surface->group_stream.active = TRUE; + + surface->group_stream.mem_stream = _cairo_memory_stream_create (); + + if (surface->compress_streams) { + surface->group_stream.stream = + _cairo_deflate_stream_create (surface->group_stream.mem_stream); + } else { + surface->group_stream.stream = surface->group_stream.mem_stream; + } + status = _cairo_output_stream_get_status (surface->group_stream.stream); + + surface->group_stream.old_output = surface->output; + surface->output = surface->group_stream.stream; + _cairo_pdf_operators_set_stream (&surface->pdf_operators, surface->output); + _cairo_pdf_group_resources_clear (&surface->resources); + + if (resource) { + surface->group_stream.resource = *resource; + } else { + surface->group_stream.resource = _cairo_pdf_surface_new_object (surface); + if (surface->group_stream.resource.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + surface->group_stream.is_knockout = FALSE; + surface->group_stream.bbox = *bbox; + + /* Reset gstate */ + surface->reset_gs_required = TRUE; + surface->current_pattern_is_solid_color = FALSE; + surface->current_operator = CAIRO_OPERATOR_OVER; + _cairo_pdf_operators_reset (&surface->pdf_operators); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_open_knockout_group (cairo_pdf_surface_t *surface, + const cairo_box_double_t *bbox) +{ + cairo_int_status_t status; + + status = _cairo_pdf_surface_open_group (surface, bbox, NULL); + if (unlikely (status)) + return status; + + surface->group_stream.is_knockout = TRUE; + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_pdf_surface_close_group (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t *group) +{ + cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS, status2; + + assert (surface->pdf_stream.active == FALSE); + assert (surface->group_stream.active == TRUE); + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + if (surface->compress_streams) { + status = _cairo_output_stream_destroy (surface->group_stream.stream); + surface->group_stream.stream = NULL; + + _cairo_output_stream_printf (surface->group_stream.mem_stream, + "\n"); + } + surface->output = surface->group_stream.old_output; + _cairo_pdf_operators_set_stream (&surface->pdf_operators, surface->output); + surface->group_stream.active = FALSE; + _cairo_pdf_surface_write_memory_stream (surface, + surface->group_stream.mem_stream, + surface->group_stream.resource, + &surface->resources, + surface->group_stream.is_knockout, + &surface->group_stream.bbox); + if (group) + *group = surface->group_stream.resource; + + status2 = _cairo_output_stream_destroy (surface->group_stream.mem_stream); + if (status == CAIRO_INT_STATUS_SUCCESS) + status = status2; + + surface->group_stream.mem_stream = NULL; + surface->group_stream.stream = NULL; + surface->reset_gs_required = FALSE; + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_open_object_stream (cairo_pdf_surface_t *surface) +{ + if (surface->debug || surface->pdf_version < CAIRO_PDF_VERSION_1_5) { + /* Object streams not supported. All objects will be written + * directly to the file. */ + assert (surface->pdf_stream.active == FALSE); + assert (surface->group_stream.active == FALSE); + surface->object_stream.stream = surface->output; + } else { + surface->object_stream.resource = _cairo_pdf_surface_new_object (surface); + if (surface->object_stream.resource.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_array_truncate (&surface->object_stream.objects, 0); + surface->object_stream.stream = _cairo_memory_stream_create (); + surface->object_stream.active = TRUE; + } + return _cairo_output_stream_get_status (surface->object_stream.stream); +} + +cairo_int_status_t +_cairo_pdf_surface_object_begin (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t resource) +{ + cairo_xref_stream_object_t xref_obj; + cairo_pdf_object_t *object; + cairo_int_status_t status; + + if (surface->object_stream.active) { + xref_obj.resource = resource; + xref_obj.offset = _cairo_output_stream_get_position (surface->object_stream.stream); + status = _cairo_array_append (&surface->object_stream.objects, &xref_obj); + if (unlikely (status)) + return status; + + object = _cairo_array_index (&surface->objects, resource.id - 1); + object->type = PDF_OBJECT_COMPRESSED; + object->u.compressed_obj.xref_stream = surface->object_stream.resource; + object->u.compressed_obj.index = _cairo_array_num_elements (&surface->object_stream.objects) - 1; + + } else { + _cairo_pdf_surface_update_object (surface, resource); + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n", + resource.id); + } + return CAIRO_INT_STATUS_SUCCESS; +} + +void +_cairo_pdf_surface_object_end (cairo_pdf_surface_t *surface) +{ + if (!surface->object_stream.active) { + _cairo_output_stream_printf (surface->output, + "endobj\n"); + } +} + +static int +_cairo_xref_stream_object_compare (const void *a, + const void *b) +{ + const cairo_xref_stream_object_t *a_obj = a; + const cairo_xref_stream_object_t *b_obj = b; + + if (a_obj->offset < b_obj->offset) + return -1; + else if (a_obj->offset > b_obj->offset) + return 1; + else + return 0; +} + +static cairo_int_status_t +_cairo_pdf_surface_close_object_stream (cairo_pdf_surface_t *surface) +{ + int i, num_objects; + cairo_xref_stream_object_t *xref_obj; + long long start_pos, length; + cairo_output_stream_t *index_stream; + cairo_output_stream_t *deflate_stream; + cairo_pdf_resource_t length_res; + cairo_int_status_t status; + cairo_pdf_object_t *object; + + if (!surface->object_stream.active) { + surface->object_stream.stream = NULL; + return CAIRO_INT_STATUS_SUCCESS; + } + + num_objects = _cairo_array_num_elements (&surface->object_stream.objects); + if (num_objects == 0) { + object = _cairo_array_index (&surface->objects, surface->object_stream.resource.id - 1); + object->type = PDF_OBJECT_FREE; + return CAIRO_INT_STATUS_SUCCESS; + } + + index_stream = _cairo_memory_stream_create (); + /* PDF requires the object id/offset pairs to be sorted by offset. */ + _cairo_array_sort (&surface->object_stream.objects, _cairo_xref_stream_object_compare); + for (i = 0; i < num_objects; i++) { + xref_obj = _cairo_array_index (&surface->object_stream.objects, i); + _cairo_output_stream_printf (index_stream, + "%d %lld\n", + xref_obj->resource.id, + xref_obj->offset); + } + + length_res = _cairo_pdf_surface_new_object (surface); + if (length_res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_pdf_surface_update_object (surface, surface->object_stream.resource); + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /ObjStm\n" + " /Length %d 0 R\n" + " /N %d\n" + " /First %d\n", + surface->object_stream.resource.id, + length_res.id, + num_objects, + _cairo_memory_stream_length (index_stream)); + + if (surface->compress_streams) { + _cairo_output_stream_printf (surface->output, + " /Filter /FlateDecode\n"); + } + + _cairo_output_stream_printf (surface->output, + ">>\n" + "stream\n"); + + start_pos = _cairo_output_stream_get_position (surface->output); + if (surface->compress_streams) { + deflate_stream = _cairo_deflate_stream_create (surface->output); + _cairo_memory_stream_copy (index_stream, deflate_stream); + _cairo_memory_stream_copy (surface->object_stream.stream, deflate_stream); + status = _cairo_output_stream_destroy (deflate_stream); + if (unlikely (status)) + return status; + + length = _cairo_output_stream_get_position (surface->output) - start_pos; + } else { + _cairo_memory_stream_copy (index_stream, surface->output); + _cairo_memory_stream_copy (surface->object_stream.stream, surface->output); + length = _cairo_output_stream_get_position (surface->output) - start_pos; + } + + _cairo_output_stream_printf (surface->output, + "\n" + "endstream\n" + "endobj\n"); + + _cairo_pdf_surface_update_object (surface, + length_res); + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + " %lld\n" + "endobj\n", + length_res.id, + length); + + status = _cairo_output_stream_destroy (index_stream); + if (unlikely (status)) + return status; + + status = _cairo_output_stream_destroy (surface->object_stream.stream); + if (unlikely (status)) + return status; + + surface->object_stream.stream = NULL; + surface->object_stream.active = FALSE; + + return _cairo_output_stream_get_status (surface->output); +} + +static cairo_int_status_t +_cairo_pdf_surface_open_content_stream (cairo_pdf_surface_t *surface, + const cairo_box_double_t *bbox, + cairo_pdf_resource_t *resource, + cairo_bool_t is_form, + cairo_bool_t is_group, + int struct_parents) +{ + cairo_int_status_t status; + + assert (surface->pdf_stream.active == FALSE); + assert (surface->group_stream.active == FALSE); + + surface->content_resources = _cairo_pdf_surface_new_object (surface); + if (surface->content_resources.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (is_form) { + assert (bbox != NULL); + + cairo_output_stream_t *mem_stream = _cairo_memory_stream_create (); + if (is_group) { + _cairo_output_stream_printf (mem_stream, + " /Type /XObject\n" + " /Subtype /Form\n" + " /BBox [ %f %f %f %f ]\n" + " /Group <<\n" + " /Type /Group\n" + " /S /Transparency\n" + " /I true\n" + " /CS /DeviceRGB\n" + " >>\n" + " /Resources %d 0 R\n", + bbox->p1.x, + bbox->p1.y, + bbox->p2.x, + bbox->p2.y, + surface->content_resources.id); + } else { + _cairo_output_stream_printf (mem_stream, + " /Type /XObject\n" + " /Subtype /Form\n" + " /BBox [ %f %f %f %f ]\n" + " /Resources %d 0 R\n", + bbox->p1.x, + bbox->p1.y, + bbox->p2.x, + bbox->p2.y, + surface->content_resources.id); + } + if (struct_parents >= 0) { + _cairo_output_stream_printf (mem_stream, + " /StructParents %d\n", struct_parents); + } + + unsigned char *data; + unsigned long length; + status = _cairo_memory_stream_destroy (mem_stream, &data, &length); + if (unlikely (status)) + return status; + + char *str = _cairo_strndup ((const char*)data, length); /* Add NULL terminator */ + + status = + _cairo_pdf_surface_open_stream (surface, + resource, + surface->compress_streams, + "%s", + str); + free (str); + free (data); + } else { + status = + _cairo_pdf_surface_open_stream (surface, + resource, + surface->compress_streams, + NULL); + _cairo_output_stream_printf (surface->output, + "1 0 0 -1 0 %f cm\n", + surface->height); + } + if (unlikely (status)) + return status; + + surface->content = surface->pdf_stream.self; + + _cairo_output_stream_printf (surface->output, "q\n"); + _cairo_pdf_operators_reset (&surface->pdf_operators); + + return _cairo_output_stream_get_status (surface->output); +} + +static cairo_int_status_t +_cairo_pdf_surface_close_content_stream (cairo_pdf_surface_t *surface, + cairo_bool_t is_form) +{ + cairo_int_status_t status; + + assert (surface->pdf_stream.active == TRUE); + assert (surface->group_stream.active == FALSE); + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, "Q\n"); + status = _cairo_pdf_surface_close_stream (surface); + if (unlikely (status)) + return status; + + _cairo_pdf_surface_update_object (surface, surface->content_resources); + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n", + surface->content_resources.id); + _cairo_pdf_surface_emit_group_resources (surface, &surface->resources, is_form); + _cairo_output_stream_printf (surface->output, + "endobj\n"); + + return _cairo_output_stream_get_status (surface->output); +} + +static void +_cairo_pdf_source_surface_entry_pluck (void *entry, void *closure) +{ + cairo_pdf_source_surface_entry_t *surface_entry = entry; + cairo_hash_table_t *patterns = closure; + + _cairo_hash_table_remove (patterns, &surface_entry->base); + free (surface_entry->unique_id); + + free (surface_entry); +} + +static void +_cairo_pdf_color_glyph_pluck (void *entry, void *closure) +{ + cairo_pdf_color_glyph_t *glyph_entry = entry; + cairo_hash_table_t *patterns = closure; + + _cairo_hash_table_remove (patterns, &glyph_entry->base); + cairo_scaled_font_destroy (glyph_entry->scaled_font); + + free (glyph_entry); +} + +static cairo_int_status_t +_cairo_pdf_surface_write_page_dicts (cairo_pdf_surface_t *surface) +{ + cairo_int_status_t status; + cairo_pdf_page_info_t *page_info; + int num_annots; + cairo_pdf_resource_t res; + + for (unsigned i = 0; i < _cairo_array_num_elements (&surface->pages); i++) { + page_info = _cairo_array_index (&surface->pages, i); + + status = _cairo_pdf_surface_object_begin (surface, page_info->page_res); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Type /Page %% %d\n" + " /Parent %d 0 R\n" + " /MediaBox [ 0 0 %f %f ]\n" + " /Contents %d 0 R\n" + " /Group <<\n" + " /Type /Group\n" + " /S /Transparency\n" + " /I true\n" + " /CS /DeviceRGB\n" + " >>\n" + " /Resources %d 0 R\n", + i + 1, + surface->pages_resource.id, + page_info->width, + page_info->height, + page_info->content.id, + page_info->resources.id); + + if (page_info->struct_parents >= 0) { + _cairo_output_stream_printf (surface->object_stream.stream, + " /StructParents %d\n", + page_info->struct_parents); + } + + num_annots = _cairo_array_num_elements (&page_info->annots); + if (num_annots > 0) { + _cairo_output_stream_printf (surface->object_stream.stream, + " /Annots [ "); + for (int j = 0; j < num_annots; j++) { + _cairo_array_copy_element (&page_info->annots, j, &res); + _cairo_output_stream_printf (surface->object_stream.stream, + "%d 0 R ", + res.id); + } + _cairo_output_stream_printf (surface->object_stream.stream, "]\n"); + } + + if (page_info->thumbnail.id) { + _cairo_output_stream_printf (surface->object_stream.stream, + " /Thumb %d 0 R\n", + page_info->thumbnail.id); + } + + _cairo_output_stream_printf (surface->object_stream.stream, + ">>\n"); + _cairo_pdf_surface_object_end (surface); + } + + return status; +} + +static cairo_status_t +_cairo_pdf_surface_finish (void *abstract_surface) +{ + cairo_pdf_surface_t *surface = abstract_surface; + long long offset; + cairo_pdf_resource_t catalog; + cairo_status_t status = CAIRO_STATUS_SUCCESS, status2; + int size, i; + cairo_pdf_jbig2_global_t *global; + char *label; + cairo_pdf_resource_t xref_res; + + /* Some of the data may be in an inconistent state if there is an error status. */ + if (surface->base.status != CAIRO_STATUS_SUCCESS) + goto CLEANUP; + + _cairo_pdf_surface_clear (surface, FALSE); + + status = _cairo_pdf_surface_open_object_stream (surface); + if (unlikely (status)) + goto CLEANUP; + + /* Emit unbounded surfaces */ + status = _cairo_pdf_surface_write_patterns_and_smask_groups (surface, TRUE); + if (unlikely (status)) + goto CLEANUP; + + _cairo_pdf_surface_clear (surface, TRUE); + + status = _cairo_pdf_surface_emit_font_subsets (surface); + if (unlikely (status)) + goto CLEANUP; + + /* Emit any new patterns or surfaces created by the Type 3 font subset. */ + _cairo_pdf_surface_write_patterns_and_smask_groups (surface, TRUE); + + _cairo_pdf_surface_clear (surface, TRUE); + + status = _cairo_pdf_surface_write_pages (surface); + if (unlikely (status)) + goto CLEANUP; + + status = _cairo_pdf_interchange_write_document_objects (surface); + if (unlikely (status)) + goto CLEANUP; + + status = _cairo_pdf_surface_write_page_dicts (surface); + if (unlikely (status)) + goto CLEANUP; + + catalog = _cairo_pdf_surface_new_object (surface); + if (catalog.id == 0) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP; + } + + status = _cairo_pdf_surface_write_catalog (surface, catalog); + if (unlikely (status)) + goto CLEANUP; + + status = _cairo_pdf_surface_close_object_stream (surface); + if (unlikely (status)) + goto CLEANUP; + + if (!surface->debug && surface->pdf_version >= CAIRO_PDF_VERSION_1_5) + { + xref_res = _cairo_pdf_surface_new_object (surface); + status = _cairo_pdf_surface_write_xref_stream (surface, + xref_res, + catalog, + surface->docinfo_res, + &offset); + } else { + offset = _cairo_pdf_surface_write_xref (surface); + _cairo_output_stream_printf (surface->output, + "trailer\n" + "<< /Size %d\n" + " /Root %d 0 R\n" + " /Info %d 0 R\n" + ">>\n", + surface->next_available_resource.id, + catalog.id, + surface->docinfo_res.id); + } + _cairo_output_stream_printf (surface->output, + "startxref\n" + "%lld\n" + "%%%%EOF\n", + offset); + + CLEANUP: + + /* pdf_operators has already been flushed when the last stream was + * closed so we should never be writing anything here - however, + * the stream may itself be in an error state. */ + status2 = _cairo_pdf_operators_fini (&surface->pdf_operators); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + + /* close any active streams still open due to fatal errors */ + status2 = _cairo_pdf_surface_close_stream (surface); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + + if (surface->group_stream.stream != NULL) { + status2 = _cairo_output_stream_destroy (surface->group_stream.stream); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + } + if (surface->group_stream.mem_stream != NULL) { + status2 = _cairo_output_stream_destroy (surface->group_stream.mem_stream); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + } + if (surface->pdf_stream.active) + surface->output = surface->pdf_stream.old_output; + if (surface->group_stream.active) + surface->output = surface->group_stream.old_output; + + /* and finish the pdf surface */ + status2 = _cairo_output_stream_destroy (surface->output); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + + _cairo_pdf_group_resources_fini (&surface->resources); + + _cairo_array_fini (&surface->objects); + size = _cairo_array_num_elements (&surface->pages); + for (i = 0; i < size; i++) { + cairo_pdf_page_info_t *page_info = _cairo_array_index (&surface->pages, i); + _cairo_array_fini (&page_info->annots); + } + _cairo_array_fini (&surface->pages); + _cairo_array_fini (&surface->rgb_linear_functions); + _cairo_array_fini (&surface->alpha_linear_functions); + _cairo_array_fini (&surface->page_patterns); + _cairo_array_fini (&surface->page_surfaces); + _cairo_array_fini (&surface->object_stream.objects); + + _cairo_array_fini (&surface->doc_surfaces); + _cairo_hash_table_foreach (surface->all_surfaces, + _cairo_pdf_source_surface_entry_pluck, + surface->all_surfaces); + _cairo_hash_table_destroy (surface->all_surfaces); + _cairo_array_fini (&surface->smask_groups); + _cairo_array_fini (&surface->fonts); + _cairo_array_fini (&surface->knockout_group); + _cairo_array_fini (&surface->page_annots); + + _cairo_hash_table_foreach (surface->color_glyphs, + _cairo_pdf_color_glyph_pluck, + surface->color_glyphs); + _cairo_hash_table_destroy (surface->color_glyphs); + + if (surface->font_subsets) { + _cairo_scaled_font_subsets_destroy (surface->font_subsets); + surface->font_subsets = NULL; + } + + size = _cairo_array_num_elements (&surface->jbig2_global); + for (i = 0; i < size; i++) { + global = (cairo_pdf_jbig2_global_t *) _cairo_array_index (&surface->jbig2_global, i); + free(global->id); + if (!global->emitted) + return _cairo_error (CAIRO_STATUS_JBIG2_GLOBAL_MISSING); + } + _cairo_array_fini (&surface->jbig2_global); + + size = _cairo_array_num_elements (&surface->page_labels); + for (i = 0; i < size; i++) { + _cairo_array_copy_element (&surface->page_labels, i, &label); + free (label); + } + _cairo_array_fini (&surface->page_labels); + + _cairo_surface_clipper_reset (&surface->clipper); + + _cairo_pdf_interchange_fini (surface); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_start_page (void *abstract_surface) +{ + cairo_pdf_surface_t *surface = abstract_surface; + cairo_pdf_page_info_t page_info; + cairo_int_status_t status; + + /* Document header */ + if (! surface->header_emitted) { + const char *version; + + switch (surface->pdf_version) { + case CAIRO_PDF_VERSION_1_4: + version = "1.4"; + break; + case CAIRO_PDF_VERSION_1_5: + version = "1.5"; + break; + case CAIRO_PDF_VERSION_1_6: + version = "1.6"; + break; + default: + case CAIRO_PDF_VERSION_1_7: + version = "1.7"; + break; + } + + _cairo_output_stream_printf (surface->output, + "%%PDF-%s\n", version); + _cairo_output_stream_printf (surface->output, + "%%%c%c%c%c\n", 181, 237, 174, 251); + surface->header_emitted = TRUE; + } + + _cairo_pdf_group_resources_clear (&surface->resources); + surface->in_xobject = FALSE; + + page_info.page_res = _cairo_pdf_surface_new_object (surface); + if (page_info.page_res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + page_info.width = surface->width; + page_info.height = surface->height; + page_info.content.id = 0; + page_info.resources.id = 0; + page_info.thumbnail.id = 0; + page_info.struct_parents = -1; + _cairo_array_init (&page_info.annots, sizeof (cairo_pdf_resource_t)); + + status = _cairo_array_append (&surface->pages, &page_info); + if (unlikely (status)) + return status; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_pdf_surface_has_fallback_images (void *abstract_surface, + cairo_bool_t has_fallbacks) +{ + cairo_int_status_t status; + cairo_pdf_surface_t *surface = abstract_surface; + cairo_box_double_t bbox; + + status = _cairo_pdf_interchange_end_page_content (surface); + if (unlikely (status)) + return status; + + surface->has_fallback_images = has_fallbacks; + surface->in_xobject = has_fallbacks; + bbox.p1.x = 0; + bbox.p1.y = 0; + bbox.p2.x = surface->width; + bbox.p2.y = surface->height; + status = _cairo_pdf_surface_open_content_stream (surface, &bbox, NULL, has_fallbacks, has_fallbacks, -1); + if (unlikely (status)) + return status; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_cairo_pdf_surface_supports_fine_grained_fallbacks (void *abstract_surface) +{ + return TRUE; +} + +static cairo_bool_t +_cairo_pdf_surface_requires_thumbnail_image (void *abstract_surface, + int *width, + int *height) +{ + cairo_pdf_surface_t *surface = abstract_surface; + + if (surface->thumbnail_width > 0 && surface->thumbnail_height > 0) { + *width = surface->thumbnail_width; + *height = surface->thumbnail_height; + return TRUE; + } + + return FALSE; +} + +static cairo_int_status_t +_cairo_pdf_surface_set_thumbnail_image (void *abstract_surface, + cairo_image_surface_t *image) +{ + cairo_pdf_surface_t *surface = abstract_surface; + + surface->thumbnail_image = (cairo_image_surface_t *)cairo_surface_reference(&image->base); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_pdf_surface_add_padded_image_surface (cairo_pdf_surface_t *surface, + const cairo_pattern_t *source, + const cairo_rectangle_int_t *extents, + cairo_pdf_source_surface_entry_t **pdf_source, + double *x_offset, + double *y_offset, + cairo_rectangle_int_t *source_extents) +{ + cairo_image_surface_t *image; + cairo_surface_t *pad_image; + void *image_extra; + cairo_int_status_t status; + int w, h; + cairo_box_t box; + cairo_rectangle_int_t rect; + cairo_surface_pattern_t pad_pattern; + + status = _cairo_pdf_surface_acquire_source_image_from_pattern (surface, source, + &image, &image_extra); + if (unlikely (status)) + return status; + + pad_image = &image->base; + + /* get the operation extents in pattern space */ + _cairo_box_from_rectangle (&box, extents); + _cairo_matrix_transform_bounding_box_fixed (&source->matrix, &box, NULL); + _cairo_box_round_to_rectangle (&box, &rect); + + /* Check if image needs padding to fill extents */ + w = image->width; + h = image->height; + if (_cairo_fixed_integer_ceil(box.p1.x) < 0 || + _cairo_fixed_integer_ceil(box.p1.y) < 0 || + _cairo_fixed_integer_floor(box.p2.x) > w || + _cairo_fixed_integer_floor(box.p2.y) > h) + { + pad_image = _cairo_image_surface_create_with_content (image->base.content, + rect.width, + rect.height); + if (pad_image->status) { + status = pad_image->status; + goto BAIL; + } + + _cairo_pattern_init_for_surface (&pad_pattern, &image->base); + cairo_matrix_init_translate (&pad_pattern.base.matrix, rect.x, rect.y); + pad_pattern.base.extend = CAIRO_EXTEND_PAD; + status = _cairo_surface_paint (pad_image, + CAIRO_OPERATOR_SOURCE, &pad_pattern.base, + NULL); + _cairo_pattern_fini (&pad_pattern.base); + if (unlikely (status)) + goto BAIL; + } + + status = _cairo_pdf_surface_add_source_surface (surface, + pad_image, + NULL, + -1 , /* node_surface_index */ + CAIRO_OPERATOR_OVER, /* not used for images */ + source->filter, + FALSE, /* stencil mask */ + FALSE, /* smask */ + FALSE, /* need_transp_group */ + extents, + NULL, /* smask_res */ + pdf_source, + x_offset, + y_offset, + source_extents); + if (unlikely (status)) + goto BAIL; + + if (pad_image != &image->base) { + /* If using a padded image, replace _add_source_surface + * x/y_offset with padded image offset. Note: + * _add_source_surface only sets a non zero x/y_offset for + * RASTER_SOURCE patterns. _add_source_surface will always set + * x/y_offset to 0 for surfaces so we can ignore the returned + * offset and replace it with the offset required for the + * padded image */ + *x_offset = rect.x; + *y_offset = rect.y; + } + +BAIL: + if (pad_image != &image->base) + cairo_surface_destroy (pad_image); + + _cairo_pdf_surface_release_source_image_from_pattern (surface, source, image, image_extra); + + return status; +} + +/* Emit alpha channel from the image into stream_res. + */ +static cairo_int_status_t +_cairo_pdf_surface_emit_smask (cairo_pdf_surface_t *surface, + cairo_image_surface_t *image, + cairo_bool_t stencil_mask, + cairo_bool_t interpolate, + cairo_pdf_resource_t *stream_res) +{ + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + char *alpha; + unsigned long alpha_size; + uint32_t *pixel32; + uint8_t *pixel8; + int i, x, y, bit, a; + cairo_image_transparency_t transparency; + + /* This is the only image format we support, which simplifies things. */ + assert (image->format == CAIRO_FORMAT_ARGB32 || + image->format == CAIRO_FORMAT_RGB24 || + image->format == CAIRO_FORMAT_A8 || + image->format == CAIRO_FORMAT_A1 ); + + transparency = _cairo_image_analyze_transparency (image); + if (stencil_mask) { + assert (transparency == CAIRO_IMAGE_IS_OPAQUE || + transparency == CAIRO_IMAGE_HAS_BILEVEL_ALPHA); + } else { + assert (transparency != CAIRO_IMAGE_IS_OPAQUE); + } + + if (transparency == CAIRO_IMAGE_HAS_BILEVEL_ALPHA || transparency == CAIRO_IMAGE_IS_OPAQUE) { + alpha_size = (image->width + 7) / 8 * image->height; + alpha = _cairo_malloc_ab ((image->width+7) / 8, image->height); + } else { + alpha_size = image->height * image->width; + alpha = _cairo_malloc_ab (image->height, image->width); + } + + if (unlikely (alpha == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP; + } + + i = 0; + for (y = 0; y < image->height; y++) { + if (transparency == CAIRO_IMAGE_IS_OPAQUE) { + for (x = 0; x < (image->width + 7) / 8; x++) + alpha[i++] = 0xff; + } else if (image->format == CAIRO_FORMAT_A1) { + pixel8 = (uint8_t *) (image->data + y * image->stride); + + for (x = 0; x < (image->width + 7) / 8; x++, pixel8++) { + a = *pixel8; + a = CAIRO_BITSWAP8_IF_LITTLE_ENDIAN (a); + alpha[i++] = a; + } + } else { + pixel8 = (uint8_t *) (image->data + y * image->stride); + pixel32 = (uint32_t *) (image->data + y * image->stride); + bit = 7; + for (x = 0; x < image->width; x++) { + if (image->format == CAIRO_FORMAT_ARGB32) { + a = (*pixel32 & 0xff000000) >> 24; + pixel32++; + } else { + a = *pixel8; + pixel8++; + } + + if (transparency == CAIRO_IMAGE_HAS_ALPHA) { + alpha[i++] = a; + } else { /* transparency == CAIRO_IMAGE_HAS_BILEVEL_ALPHA or CAIRO_IMAGE_IS_OPAQUE */ + if (bit == 7) + alpha[i] = 0; + if (a != 0) + alpha[i] |= (1 << bit); + bit--; + if (bit < 0) { + bit = 7; + i++; + } + } + } + if (bit != 7) + i++; + } + } + + if (stencil_mask) { + status = _cairo_pdf_surface_open_stream (surface, + stream_res, + TRUE, + " /Type /XObject\n" + " /Subtype /Image\n" + " /ImageMask true\n" + " /Width %d\n" + " /Height %d\n" + " /Interpolate %s\n" + " /BitsPerComponent 1\n" + " /Decode [1 0]\n", + image->width, image->height, + interpolate ? "true" : "false"); + } else { + status = _cairo_pdf_surface_open_stream (surface, + stream_res, + TRUE, + " /Type /XObject\n" + " /Subtype /Image\n" + " /Width %d\n" + " /Height %d\n" + " /ColorSpace /DeviceGray\n" + " /Interpolate %s\n" + " /BitsPerComponent %d\n", + image->width, image->height, + interpolate ? "true" : "false", + transparency == CAIRO_IMAGE_HAS_ALPHA ? 8 : 1); + } + if (unlikely (status)) + goto CLEANUP_ALPHA; + + _cairo_output_stream_write (surface->output, alpha, alpha_size); + status = _cairo_pdf_surface_close_stream (surface); + + CLEANUP_ALPHA: + free (alpha); + CLEANUP: + return status; +} + +/** + * _cairo_pdf_surface_emit_image: + * @surface: the pdf surface + * @image_surf: The image to write + * @surface_entry: Contains image resource, smask resource, interpolate and stencil mask parameters. + * + * Emit an image stream using the @image_res resource and write out + * the image data from @image_surf. If @smask_res is not null, @smask_res will + * be specified as the smask for the image. Otherwise emit the an smask if + * the image is requires one. + **/ +static cairo_int_status_t +_cairo_pdf_surface_emit_image (cairo_pdf_surface_t *surface, + cairo_image_surface_t *image_surf, + cairo_pdf_source_surface_entry_t *surface_entry) +{ + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + char *data; + unsigned long data_size; + uint32_t *pixel; + int i, x, y, bit; + cairo_pdf_resource_t smask = {0}; /* squelch bogus compiler warning */ + cairo_bool_t need_smask; + cairo_image_color_t color; + cairo_image_surface_t *image; + cairo_image_transparency_t transparency; + char smask_buf[30]; + + image = image_surf; + if (image->format != CAIRO_FORMAT_RGB24 && + image->format != CAIRO_FORMAT_ARGB32 && + image->format != CAIRO_FORMAT_A8 && + image->format != CAIRO_FORMAT_A1) + { + cairo_surface_t *surf; + cairo_surface_pattern_t pattern; + + surf = _cairo_image_surface_create_with_content (image_surf->base.content, + image_surf->width, + image_surf->height); + image = (cairo_image_surface_t *) surf; + if (surf->status) { + status = surf->status; + goto CLEANUP; + } + + _cairo_pattern_init_for_surface (&pattern, &image_surf->base); + status = _cairo_surface_paint (surf, + CAIRO_OPERATOR_SOURCE, &pattern.base, + NULL); + _cairo_pattern_fini (&pattern.base); + if (unlikely (status)) + goto CLEANUP; + } + + if (surface_entry->smask || surface_entry->stencil_mask) { + return _cairo_pdf_surface_emit_smask (surface, image, + surface_entry->stencil_mask, + surface_entry->interpolate, + &surface_entry->surface_res); + } + + color = _cairo_image_analyze_color (image); + switch (color) { + default: + case CAIRO_IMAGE_UNKNOWN_COLOR: + ASSERT_NOT_REACHED; + case CAIRO_IMAGE_IS_COLOR: + data_size = image->height * image->width * 3; + data = _cairo_malloc_abc (image->width, image->height, 3); + break; + + case CAIRO_IMAGE_IS_GRAYSCALE: + data_size = image->height * image->width; + data = _cairo_malloc_ab (image->width, image->height); + break; + case CAIRO_IMAGE_IS_MONOCHROME: + data_size = (image->width + 7) / 8 * image->height; + data = _cairo_malloc_ab ((image->width+7) / 8, image->height); + break; + } + if (unlikely (data == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP; + } + + i = 0; + for (y = 0; y < image->height; y++) { + pixel = (uint32_t *) (image->data + y * image->stride); + + bit = 7; + for (x = 0; x < image->width; x++, pixel++) { + int r, g, b; + + /* XXX: We're un-premultiplying alpha here. My reading of the PDF + * specification suggests that we should be able to avoid having + * to do this by filling in the SMask's Matte dictionary + * appropriately, but my attempts to do that so far have + * failed. */ + if (image->format == CAIRO_FORMAT_ARGB32) { + uint8_t a; + a = (*pixel & 0xff000000) >> 24; + if (a == 0) { + r = g = b = 0; + } else { + r = (((*pixel & 0xff0000) >> 16) * 255 + a / 2) / a; + g = (((*pixel & 0x00ff00) >> 8) * 255 + a / 2) / a; + b = (((*pixel & 0x0000ff) >> 0) * 255 + a / 2) / a; + } + } else if (image->format == CAIRO_FORMAT_RGB24) { + r = (*pixel & 0x00ff0000) >> 16; + g = (*pixel & 0x0000ff00) >> 8; + b = (*pixel & 0x000000ff) >> 0; + } else { + r = g = b = 0; + } + + switch (color) { + case CAIRO_IMAGE_IS_COLOR: + case CAIRO_IMAGE_UNKNOWN_COLOR: + data[i++] = r; + data[i++] = g; + data[i++] = b; + break; + + case CAIRO_IMAGE_IS_GRAYSCALE: + data[i++] = r; + break; + + case CAIRO_IMAGE_IS_MONOCHROME: + if (bit == 7) + data[i] = 0; + if (r != 0) + data[i] |= (1 << bit); + bit--; + if (bit < 0) { + bit = 7; + i++; + } + break; + } + } + if (bit != 7) + i++; + } + + if (surface_entry->smask_res.id != 0) { + need_smask = TRUE; + smask = surface_entry->smask_res; + } else { + need_smask = FALSE; + if (image->format == CAIRO_FORMAT_ARGB32 || + image->format == CAIRO_FORMAT_A8 || + image->format == CAIRO_FORMAT_A1) + { + transparency = _cairo_image_analyze_transparency (image); + if (transparency != CAIRO_IMAGE_IS_OPAQUE) { + need_smask = TRUE; + smask = _cairo_pdf_surface_new_object (surface); + if (smask.id == 0) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_RGB; + } + + status = _cairo_pdf_surface_emit_smask (surface, image, FALSE, surface_entry->interpolate, &smask); + if (unlikely (status)) + goto CLEANUP_RGB; + } + } + } + + if (need_smask) + snprintf(smask_buf, sizeof(smask_buf), " /SMask %d 0 R\n", smask.id); + else + smask_buf[0] = 0; + + status = _cairo_pdf_surface_open_stream (surface, + &surface_entry->surface_res, + TRUE, + " /Type /XObject\n" + " /Subtype /Image\n" + " /Width %d\n" + " /Height %d\n" + " /ColorSpace %s\n" + " /Interpolate %s\n" + " /BitsPerComponent %d\n" + "%s", + image->width, + image->height, + color == CAIRO_IMAGE_IS_COLOR ? "/DeviceRGB" : "/DeviceGray", + surface_entry->interpolate ? "true" : "false", + color == CAIRO_IMAGE_IS_MONOCHROME? 1 : 8, + smask_buf); + if (unlikely (status)) + goto CLEANUP_RGB; + +#undef IMAGE_DICTIONARY + + _cairo_output_stream_write (surface->output, data, data_size); + status = _cairo_pdf_surface_close_stream (surface); + +CLEANUP_RGB: + free (data); +CLEANUP: + if (image != image_surf) + cairo_surface_destroy (&image->base); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_lookup_jbig2_global (cairo_pdf_surface_t *surface, + const unsigned char *global_id, + unsigned long global_id_length, + cairo_pdf_jbig2_global_t **entry) +{ + cairo_pdf_jbig2_global_t global; + int size, i; + cairo_int_status_t status; + + size = _cairo_array_num_elements (&surface->jbig2_global); + for (i = 0; i < size; i++) { + *entry = (cairo_pdf_jbig2_global_t *) _cairo_array_index (&surface->jbig2_global, i); + if ((*entry)->id && global_id && (*entry)->id_length == global_id_length + && memcmp((*entry)->id, global_id, global_id_length) == 0) { + return CAIRO_STATUS_SUCCESS; + } + } + + global.id = _cairo_malloc (global_id_length); + if (unlikely (global.id == NULL)) { + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + memcpy (global.id, global_id, global_id_length); + global.id_length = global_id_length; + global.res = _cairo_pdf_surface_new_object (surface); + if (global.res.id == 0) { + free(global.id); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + global.emitted = FALSE; + status = _cairo_array_append (&surface->jbig2_global, &global); + if (unlikely(status)) + return status; + + size = _cairo_array_num_elements (&surface->jbig2_global); + *entry = (cairo_pdf_jbig2_global_t *) _cairo_array_index (&surface->jbig2_global, size - 1); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_jbig2_image (cairo_pdf_surface_t *surface, + cairo_surface_t *source, + cairo_pdf_source_surface_entry_t *surface_entry, + cairo_bool_t test) +{ + cairo_int_status_t status; + const unsigned char *mime_data; + unsigned long mime_data_length; + cairo_image_info_t info; + const unsigned char *global_id; + unsigned long global_id_length; + const unsigned char *global_data; + unsigned long global_data_length; + cairo_pdf_jbig2_global_t *global_entry = NULL; /* hide compiler warning */ + char smask_buf[30]; + char decode_parms_buf[100]; + + cairo_surface_get_mime_data (source, CAIRO_MIME_TYPE_JBIG2, + &mime_data, &mime_data_length); + if (mime_data == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_image_info_get_jbig2_info (&info, mime_data, mime_data_length); + if (status) + return status; + + /* At this point we know emitting jbig2 will succeed. */ + if (test) + return CAIRO_STATUS_SUCCESS; + + cairo_surface_get_mime_data (source, CAIRO_MIME_TYPE_JBIG2_GLOBAL_ID, + &global_id, &global_id_length); + if (global_id && global_id_length > 0) { + status = _cairo_pdf_surface_lookup_jbig2_global (surface, global_id, global_id_length, &global_entry); + if (unlikely(status)) + return status; + + if (!global_entry->emitted) { + cairo_surface_get_mime_data (source, CAIRO_MIME_TYPE_JBIG2_GLOBAL, + &global_data, &global_data_length); + if (global_data) { + status = _cairo_pdf_surface_open_stream (surface, &global_entry->res, FALSE, NULL); + if (unlikely(status)) + return status; + + _cairo_output_stream_write (surface->output, global_data, global_data_length); + status = _cairo_pdf_surface_close_stream (surface); + if (unlikely(status)) + return status; + + global_entry->emitted = TRUE; + } + } + + snprintf(decode_parms_buf, sizeof(decode_parms_buf), + " /DecodeParms << /JBIG2Globals %d 0 R >>\n", global_entry->res.id); + } else { + decode_parms_buf[0] = 0; + } + + if (surface_entry->smask_res.id) + snprintf(smask_buf, sizeof(smask_buf), " /SMask %d 0 R\n", surface_entry->smask_res.id); + else + smask_buf[0] = 0; + + if (surface_entry->stencil_mask) { + status = _cairo_pdf_surface_open_stream (surface, + &surface_entry->surface_res, + FALSE, + " /Type /XObject\n" + " /Subtype /Image\n" + " /ImageMask true\n" + " /Width %d\n" + " /Height %d\n" + " /Interpolate %s\n" + " /BitsPerComponent 1\n" + " /Decode [1 0]\n" + " /Filter /JPXDecode\n" + "%s", + info.width, + info.height, + surface_entry->interpolate ? "true" : "false", + decode_parms_buf); + } else { + status = _cairo_pdf_surface_open_stream (surface, + &surface_entry->surface_res, + FALSE, + " /Type /XObject\n" + " /Subtype /Image\n" + " /Width %d\n" + " /Height %d\n" + " /ColorSpace /DeviceGray\n" + " /BitsPerComponent 1\n" + " /Interpolate %s\n" + "%s" + " /Filter /JBIG2Decode\n" + "%s", + info.width, + info.height, + surface_entry->interpolate ? "true" : "false", + smask_buf, + decode_parms_buf); + } + if (unlikely(status)) + return status; + + _cairo_output_stream_write (surface->output, mime_data, mime_data_length); + status = _cairo_pdf_surface_close_stream (surface); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_jpx_image (cairo_pdf_surface_t *surface, + cairo_surface_t *source, + cairo_pdf_source_surface_entry_t *surface_entry, + cairo_bool_t test) +{ + cairo_int_status_t status; + const unsigned char *mime_data; + unsigned long mime_data_length; + cairo_image_info_t info; + char smask_buf[30]; + + if (surface->pdf_version < CAIRO_PDF_VERSION_1_5) + return CAIRO_INT_STATUS_UNSUPPORTED; + + cairo_surface_get_mime_data (source, CAIRO_MIME_TYPE_JP2, + &mime_data, &mime_data_length); + if (mime_data == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_image_info_get_jpx_info (&info, mime_data, mime_data_length); + if (status) + return status; + + if ((surface_entry->smask || surface_entry->stencil_mask) && info.num_components != 1) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if ((surface_entry->stencil_mask) && info.bits_per_component != 1) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (surface_entry->smask_res.id) + snprintf(smask_buf, sizeof(smask_buf), " /SMask %d 0 R\n", surface_entry->smask_res.id); + else + smask_buf[0] = 0; + + /* At this point we know emitting jpx will succeed. */ + if (test) + return CAIRO_STATUS_SUCCESS; + + if (surface_entry->stencil_mask) { + status = _cairo_pdf_surface_open_stream (surface, + &surface_entry->surface_res, + FALSE, + " /Type /XObject\n" + " /Subtype /Image\n" + " /ImageMask true\n" + " /Width %d\n" + " /Height %d\n" + " /Interpolate %s\n" + " /BitsPerComponent 1\n" + " /Decode [1 0]\n" + " /Filter /JPXDecode\n", + info.width, + info.height, + surface_entry->interpolate ? "true" : "false"); + } else { + status = _cairo_pdf_surface_open_stream (surface, + &surface_entry->surface_res, + FALSE, + " /Type /XObject\n" + " /Subtype /Image\n" + " /Width %d\n" + " /Height %d\n" + " /Interpolate %s\n" + "%s" + " /Filter /JPXDecode\n", + info.width, + info.height, + surface_entry->interpolate ? "true" : "false", + smask_buf); + } + if (status) + return status; + + _cairo_output_stream_write (surface->output, mime_data, mime_data_length); + status = _cairo_pdf_surface_close_stream (surface); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_jpeg_image (cairo_pdf_surface_t *surface, + cairo_surface_t *source, + cairo_pdf_source_surface_entry_t *surface_entry, + cairo_bool_t test) +{ + cairo_int_status_t status; + const unsigned char *mime_data; + unsigned long mime_data_length; + cairo_image_info_t info; + const char *colorspace; + char smask_buf[30]; + + cairo_surface_get_mime_data (source, CAIRO_MIME_TYPE_JPEG, + &mime_data, &mime_data_length); + if (unlikely (source->status)) + return source->status; + if (mime_data == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_image_info_get_jpeg_info (&info, mime_data, mime_data_length); + if (unlikely (status)) + return status; + + if ((surface_entry->smask || surface_entry->stencil_mask) && info.num_components != 1) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if ((surface_entry->stencil_mask) && info.bits_per_component != 1) + return CAIRO_INT_STATUS_UNSUPPORTED; + + switch (info.num_components) { + case 1: + colorspace = "/DeviceGray"; + break; + case 3: + colorspace = "/DeviceRGB"; + break; + case 4: + colorspace = "/DeviceCMYK"; + break; + default: + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + /* At this point we know emitting jpeg will succeed. */ + if (test) + return CAIRO_STATUS_SUCCESS; + + if (surface_entry->smask_res.id) + snprintf(smask_buf, sizeof(smask_buf), " /SMask %d 0 R\n", surface_entry->smask_res.id); + else + smask_buf[0] = 0; + + if (surface_entry->stencil_mask) { + status = _cairo_pdf_surface_open_stream (surface, + &surface_entry->surface_res, + FALSE, + " /Type /XObject\n" + " /Subtype /Image\n" + " /ImageMask true\n" + " /Width %d\n" + " /Height %d\n" + " /Interpolate %s\n" + " /BitsPerComponent 1\n" + " /Decode [1 0]\n" + " /Filter /DCTDecode\n", + info.width, + info.height, + surface_entry->interpolate ? "true" : "false"); + } else { + status = _cairo_pdf_surface_open_stream (surface, + &surface_entry->surface_res, + FALSE, + " /Type /XObject\n" + " /Subtype /Image\n" + " /Width %d\n" + " /Height %d\n" + " /ColorSpace %s\n" + " /Interpolate %s\n" + " /BitsPerComponent %d\n" + "%s" + " /Filter /DCTDecode\n", + info.width, + info.height, + colorspace, + surface_entry->interpolate ? "true" : "false", + info.bits_per_component, + smask_buf); + } + if (unlikely (status)) + return status; + + _cairo_output_stream_write (surface->output, mime_data, mime_data_length); + status = _cairo_pdf_surface_close_stream (surface); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_ccitt_image (cairo_pdf_surface_t *surface, + cairo_surface_t *source, + cairo_pdf_source_surface_entry_t *surface_entry, + cairo_bool_t test) +{ + cairo_status_t status; + const unsigned char *ccitt_data; + unsigned long ccitt_data_len; + const unsigned char *ccitt_params_string; + unsigned long ccitt_params_string_len; + char *params, *p, *end; + cairo_ccitt_params_t ccitt_params; + char buf[300]; + + cairo_surface_get_mime_data (source, CAIRO_MIME_TYPE_CCITT_FAX, + &ccitt_data, &ccitt_data_len); + if (unlikely (source->status)) + return source->status; + if (ccitt_data == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + cairo_surface_get_mime_data (source, CAIRO_MIME_TYPE_CCITT_FAX_PARAMS, + &ccitt_params_string, &ccitt_params_string_len); + if (unlikely (source->status)) + return source->status; + if (ccitt_params_string == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* ensure params_string is null terminated */ + params = _cairo_strndup ((const char *)ccitt_params_string, ccitt_params_string_len); + if (unlikely (params == NULL)) + return _cairo_surface_set_error (&surface->base, CAIRO_STATUS_NO_MEMORY); + + status = _cairo_tag_parse_ccitt_params (params, &ccitt_params); + if (unlikely(status)) + return source->status; + + free (params); + + /* At this point we know emitting jbig2 will succeed. */ + if (test) + return CAIRO_STATUS_SUCCESS; + + p = buf; + *p = 0; + end = buf + sizeof(buf) - 1; + p += snprintf (p, end - p, "/Columns %d /Rows %d /K %d", + ccitt_params.columns, + ccitt_params.rows, + ccitt_params.k); + if (ccitt_params.end_of_line) + p += snprintf (p, end - p, " /EndOfLine true"); + + if (ccitt_params.encoded_byte_align) + p += snprintf (p, end - p, " /EncodedByteAlign true"); + + if (!ccitt_params.end_of_block) + p += snprintf (p, end - p, " /EndOfBlock false"); + + if (ccitt_params.black_is_1) + p += snprintf (p, end - p, " /BlackIs1 true"); + + if (ccitt_params.damaged_rows_before_error > 0) { + p += snprintf (p, end - p, " /DamagedRowsBeforeError %d", + ccitt_params.damaged_rows_before_error); + } + + if (surface_entry->stencil_mask) { + status = _cairo_pdf_surface_open_stream (surface, + &surface_entry->surface_res, + FALSE, + " /Type /XObject\n" + " /Subtype /Image\n" + " /ImageMask true\n" + " /Width %d\n" + " /Height %d\n" + " /Interpolate %s\n" + " /BitsPerComponent 1\n" + " /Decode [1 0]\n" + " /Filter /CCITTFaxDecode\n" + " /DecodeParms << %s >> ", + ccitt_params.columns, + ccitt_params.rows, + surface_entry->interpolate ? "true" : "false", + buf); + } else { + status = _cairo_pdf_surface_open_stream (surface, + &surface_entry->surface_res, + FALSE, + " /Type /XObject\n" + " /Subtype /Image\n" + " /Width %d\n" + " /Height %d\n" + " /ColorSpace /DeviceGray\n" + " /BitsPerComponent 1\n" + " /Interpolate %s\n" + " /Filter /CCITTFaxDecode\n" + " /DecodeParms << %s >> ", + ccitt_params.columns, + ccitt_params.rows, + surface_entry->interpolate ? "true" : "false", + buf); + } + if (unlikely (status)) + return status; + + _cairo_output_stream_write (surface->output, ccitt_data, ccitt_data_len); + status = _cairo_pdf_surface_close_stream (surface); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_recording_surface (cairo_pdf_surface_t *surface, + cairo_pdf_source_surface_t *pdf_source) +{ + cairo_rectangle_int_t old_surface_extents; + cairo_bool_t old_surface_bounded; + cairo_paginated_mode_t old_paginated_mode; + cairo_surface_clipper_t old_clipper; + cairo_bool_t old_in_xobject; + cairo_box_double_t bbox; + cairo_int_status_t status; + int alpha = 0; + cairo_surface_t *free_me = NULL; + cairo_surface_t *source; + const cairo_rectangle_int_t *extents; + cairo_bool_t is_subsurface; + cairo_bool_t transparency_group; + cairo_recording_surface_t *recording; + int struct_parents = -1; + + assert (pdf_source->type == CAIRO_PATTERN_TYPE_SURFACE); + + if (pdf_source->hash_entry->bounded) { + extents = &pdf_source->hash_entry->extents; + } else { + extents = &pdf_source->hash_entry->required_extents; + } + + is_subsurface = FALSE; + source = pdf_source->surface; + if (_cairo_surface_is_snapshot (source)) + free_me = source = _cairo_surface_snapshot_get_target (source); + + if (source->backend->type == CAIRO_SURFACE_TYPE_SUBSURFACE) { + cairo_surface_subsurface_t *sub = (cairo_surface_subsurface_t *) source; + + source = sub->target; + extents = &sub->extents; + is_subsurface = TRUE; + } + + assert (source->type == CAIRO_SURFACE_TYPE_RECORDING); + recording = (cairo_recording_surface_t *) source; + + old_in_xobject = surface->in_xobject; + old_surface_extents = surface->surface_extents; + old_surface_bounded = surface->surface_bounded; + old_paginated_mode = surface->paginated_mode; + old_clipper = surface->clipper; + surface->surface_extents = *extents; + _cairo_surface_clipper_init (&surface->clipper, + _cairo_pdf_surface_clipper_intersect_clip_path); + + _cairo_pdf_operators_reset (&surface->pdf_operators); + surface->in_xobject = TRUE; + surface->surface_extents = *extents; + surface->surface_bounded = TRUE; + + /* Patterns are emitted after fallback images. The paginated mode + * needs to be set to _RENDER while the recording surface is replayed + * back to this surface. + */ + surface->paginated_mode = CAIRO_PAGINATED_MODE_RENDER; + _cairo_pdf_group_resources_clear (&surface->resources); + _get_bbox_from_extents (extents, &bbox); + + /* We can optimize away the transparency group allowing the viewer + * to replay the group in place when: + * - ca/CA when painting this groups is 1.0 (need_transp_group is FALSE), + * - all operators are OVER, and + * - the recording contains only opaque and/or clear alpha. + */ + transparency_group = pdf_source->hash_entry->need_transp_group || + !(pdf_source->hash_entry->operator == CAIRO_OPERATOR_OVER && + _cairo_recording_surface_has_only_bilevel_alpha (recording) && + _cairo_recording_surface_has_only_op_over (recording)); + + status = _cairo_pdf_interchange_emit_recording_surface_begin (surface, + pdf_source->surface, + pdf_source->hash_entry->region_id, + pdf_source->hash_entry->surface_res, + &struct_parents); + if (unlikely (status)) + goto err; + + status = _cairo_pdf_surface_open_content_stream (surface, + &bbox, + &pdf_source->hash_entry->surface_res, + TRUE, + transparency_group, + struct_parents); + if (unlikely (status)) + goto err; + + /* Reset gstate */ + surface->reset_gs_required = TRUE; + + if (source->content == CAIRO_CONTENT_COLOR) { + status = _cairo_pdf_surface_add_alpha (surface, 1.0, &alpha); + if (unlikely (status)) + goto err; + + _cairo_output_stream_printf (surface->output, + "q /a%d gs 0 0 0 rg %d %d %d %d re f Q\n", + alpha, + extents->x, + extents->y, + extents->width, + extents->height); + } + + status = _cairo_recording_surface_replay_region (source, + pdf_source->region_id, + is_subsurface ? extents : NULL, + &surface->base, + CAIRO_RECORDING_REGION_NATIVE); + assert (status != CAIRO_INT_STATUS_UNSUPPORTED); + if (unlikely (status)) + goto err; + + status = _cairo_pdf_surface_close_content_stream (surface, TRUE); + + _cairo_surface_clipper_reset (&surface->clipper); + surface->clipper = old_clipper; + _cairo_pdf_operators_reset (&surface->pdf_operators); + surface->in_xobject = old_in_xobject; + surface->paginated_mode = old_paginated_mode; + surface->surface_extents = old_surface_extents; + surface->surface_bounded = old_surface_bounded; + surface->reset_gs_required = FALSE; + + if (pdf_source->hash_entry->region_id > 0) + status = _cairo_pdf_interchange_emit_recording_surface_end (surface, pdf_source->surface); + +err: + cairo_surface_destroy (free_me); + return status; +} + +/** + * _cairo_pdf_surface_emit_surface: + * @surface: [in] the pdf surface + * @source: [in] #cairo_pdf_source_surface_t containing the surface to write + * @test: [in] if true, test what type of surface will be emitted. + * @is_image: [out] if @test is true, returns TRUE if the surface will be emitted + * as an Image XObject. + * + * If @test is FALSE, emit @src_surface as an XObject. + * If @test is TRUE, don't emit anything. Set @is_image based on the output that would be emitted. + **/ +static cairo_int_status_t +_cairo_pdf_surface_emit_surface (cairo_pdf_surface_t *surface, + cairo_pdf_source_surface_t *source, + cairo_bool_t test, + cairo_bool_t *is_image) +{ + cairo_image_surface_t *image; + void *image_extra; + cairo_int_status_t status; + + /* Try all the supported mime types and recording type, falling through + * each option if unsupported */ + if (source->type == CAIRO_PATTERN_TYPE_SURFACE) { + status = _cairo_pdf_surface_emit_jbig2_image (surface, + source->surface, + source->hash_entry, + test); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) { + *is_image = TRUE; + return status; + } + + status = _cairo_pdf_surface_emit_jpx_image (surface, + source->surface, + source->hash_entry, + test); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) { + *is_image = TRUE; + return status; + } + + status = _cairo_pdf_surface_emit_jpeg_image (surface, + source->surface, + source->hash_entry, + test); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) { + *is_image = TRUE; + return status; + } + + status = _cairo_pdf_surface_emit_ccitt_image (surface, + source->surface, + source->hash_entry, + test); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) { + *is_image = TRUE; + return status; + } + + if (source->surface->type == CAIRO_SURFACE_TYPE_RECORDING) { + if (test) { + *is_image = FALSE; + return CAIRO_INT_STATUS_SUCCESS; + } else { + return _cairo_pdf_surface_emit_recording_surface (surface, source); + } + } + } + + /* The only option left is to emit as an image surface */ + + if (source->type == CAIRO_PATTERN_TYPE_SURFACE) { + status = _cairo_surface_acquire_source_image (source->surface, &image, &image_extra); + } else { + status = _cairo_pdf_surface_acquire_source_image_from_pattern (surface, + source->raster_pattern, + &image, + &image_extra); + } + if (unlikely (status)) + return status; + + if (test) { + *is_image = TRUE; + } else { + status = _cairo_pdf_surface_emit_image (surface, + image, + source->hash_entry); + } + + if (source->type == CAIRO_PATTERN_TYPE_SURFACE) { + _cairo_surface_release_source_image (source->surface, image, image_extra); + } else { + _cairo_pdf_surface_release_source_image_from_pattern (surface, + source->raster_pattern, + image, + image_extra); + } + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_surface_pattern (cairo_pdf_surface_t *surface, + cairo_pdf_pattern_t *pdf_pattern) +{ + cairo_pattern_t *pattern = pdf_pattern->pattern; + cairo_int_status_t status; + cairo_matrix_t cairo_p2d, pdf_p2d; + cairo_extend_t extend = cairo_pattern_get_extend (pattern); + double xstep, ystep; + cairo_rectangle_int_t pattern_extents; + double x_offset; + double y_offset; + char draw_surface[50]; + char draw_surface2[200]; + cairo_box_double_t bbox; + cairo_matrix_t mat; + cairo_pdf_source_surface_entry_t *pdf_source; + cairo_rectangle_int_t op_extents; + + assert (pattern->type == CAIRO_PATTERN_TYPE_SURFACE); + if (pattern->extend == CAIRO_EXTEND_PAD) { + status = _cairo_pdf_surface_add_padded_image_surface (surface, + pattern, + &pdf_pattern->extents, + &pdf_source, + &x_offset, + &y_offset, + &op_extents); + } else { + status = _cairo_pdf_surface_add_source_surface (surface, + NULL, + pattern, + pdf_pattern->region_id, + pdf_pattern->operator, + pattern->filter, + FALSE, /* stencil mask */ + FALSE, /* smask */ + FALSE, /* need_transp_group */ + &pdf_pattern->extents, + NULL, /* smask_res */ + &pdf_source, + &x_offset, + &y_offset, + &op_extents); + } + if (unlikely (status)) + return status; + + pattern_extents = pdf_source->extents; + if (!pdf_source->bounded) + { + extend = CAIRO_EXTEND_NONE; + _cairo_rectangle_intersect (&pattern_extents, &op_extents); + } + + switch (extend) { + case CAIRO_EXTEND_PAD: + case CAIRO_EXTEND_NONE: + { + /* In PS/PDF, (as far as I can tell), all patterns are + * repeating. So we support cairo's EXTEND_NONE semantics + * by setting the repeat step size to a size large enough + * to guarantee that no more than a single occurrence will + * be visible. + * + * First, map the surface extents into pattern space (since + * xstep and ystep are in pattern space). Then use an upper + * bound on the length of the diagonal of the pattern image + * and the surface as repeat size. This guarantees to never + * repeat visibly. + */ + double x1 = 0.0, y1 = 0.0; + double x2 = surface->surface_extents.width; + double y2 = surface->surface_extents.height; + _cairo_matrix_transform_bounding_box (&pattern->matrix, + &x1, &y1, &x2, &y2, + NULL); + + /* Rather than computing precise bounds of the union, just + * add the surface extents unconditionally. We only + * required an answer that's large enough, we don't really + * care if it's not as tight as possible.*/ + xstep = ystep = ceil ((x2 - x1) + (y2 - y1) + + pattern_extents.width + pattern_extents.height); + } + break; + case CAIRO_EXTEND_REPEAT: + xstep = pattern_extents.width; + ystep = pattern_extents.height; + break; + + case CAIRO_EXTEND_REFLECT: + pattern_extents.width *= 2; + pattern_extents.height *= 2; + xstep = pattern_extents.width; + ystep = pattern_extents.height; + break; + + /* All the rest (if any) should have been analyzed away, so this + * case should be unreachable. */ + default: + ASSERT_NOT_REACHED; + xstep = 0; + ystep = 0; + } + + /* At this point, (that is, within the surface backend interface), + * the pattern's matrix maps from cairo's device space to cairo's + * pattern space, (both with their origin at the upper-left, and + * cairo's pattern space of size width,height). + * + * Then, we must emit a PDF pattern object that maps from its own + * pattern space, (which has a size that we establish in the BBox + * dictionary entry), to the PDF page's *initial* space, (which + * does not benefit from the Y-axis flipping matrix that we emit + * on each page). So the PDF patterns matrix maps from a + * (width,height) pattern space to a device space with the origin + * in the lower-left corner. + * + * So to handle all of that, we start with an identity matrix for + * the PDF pattern to device matrix. We translate it up by the + * image height then flip it in the Y direction, (moving us from + * the PDF origin to cairo's origin). We then multiply in the + * inverse of the cairo pattern matrix, (since it maps from device + * to pattern, while we're setting up pattern to device). Finally, + * we translate back down by the image height and flip again to + * end up at the lower-left origin that PDF expects. + * + * Additionally, within the stream that paints the pattern itself, + * we are using a PDF image object that has a size of (1,1) so we + * have to scale it up by the image width and height to fill our + * pattern cell. + */ + cairo_p2d = pattern->matrix; + status = cairo_matrix_invert (&cairo_p2d); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_INT_STATUS_SUCCESS); + + if (pdf_pattern->inverted_y_axis) + cairo_matrix_init (&mat, 1, 0, 0, 1, 0, 0); + else + cairo_matrix_init (&mat, 1, 0, 0, -1, 0, surface->height); + + cairo_matrix_multiply (&pdf_p2d, &cairo_p2d, &mat); + cairo_matrix_translate (&pdf_p2d, x_offset, y_offset); + if (pdf_source->emit_image) { + cairo_matrix_translate (&pdf_p2d, 0.0, pdf_source->extents.height); + cairo_matrix_scale (&pdf_p2d, 1.0, -1.0); + } + + _get_bbox_from_extents (&pattern_extents, &bbox); + _cairo_pdf_surface_update_object (surface, pdf_pattern->pattern_res); + status = _cairo_pdf_surface_open_stream (surface, + &pdf_pattern->pattern_res, + FALSE, + " /PatternType 1\n" + " /BBox [ %f %f %f %f ]\n" + " /XStep %f\n" + " /YStep %f\n" + " /TilingType 1\n" + " /PaintType 1\n" + " /Matrix [ %f %f %f %f %f %f ]\n" + " /Resources << /XObject << /x%d %d 0 R >> >>\n", + bbox.p1.x, bbox.p1.y, bbox.p2.x, bbox.p2.y, + xstep, ystep, + pdf_p2d.xx, pdf_p2d.yx, + pdf_p2d.xy, pdf_p2d.yy, + pdf_p2d.x0, pdf_p2d.y0, + pdf_source->surface_res.id, + pdf_source->surface_res.id); + if (unlikely (status)) + return status; + + if (pdf_source->emit_image) { + snprintf(draw_surface, + sizeof (draw_surface), + "q %d 0 0 %d 0 0 cm /x%d Do Q", + pdf_source->extents.width, + pdf_source->extents.height, + pdf_source->surface_res.id); + } else { + snprintf(draw_surface, + sizeof (draw_surface), + "/x%d Do", + pdf_source->surface_res.id); + } + + if (extend == CAIRO_EXTEND_REFLECT) { + cairo_rectangle_int_t p_extents = pdf_source->extents; + snprintf(draw_surface2, + sizeof (draw_surface2), + "%d %d %d %d re W n %s", + p_extents.x, p_extents.y, + p_extents.width, p_extents.height, + draw_surface); + + _cairo_output_stream_printf (surface->output, "q %s Q\n", draw_surface2); + + cairo_matrix_init_translate (&mat, p_extents.x, p_extents.y); + cairo_matrix_scale (&mat, -1, 1); + cairo_matrix_translate (&mat, -2*p_extents.width, 0); + cairo_matrix_translate (&mat, -p_extents.x, -p_extents.y); + _cairo_output_stream_printf (surface->output, "q "); + _cairo_output_stream_print_matrix (surface->output, &mat); + _cairo_output_stream_printf (surface->output, " cm %s Q\n", draw_surface2); + + cairo_matrix_init_translate (&mat, p_extents.x, p_extents.y); + cairo_matrix_scale (&mat, 1, -1); + cairo_matrix_translate (&mat, 0, -2*p_extents.height); + cairo_matrix_translate (&mat, -p_extents.x, -p_extents.y); + _cairo_output_stream_printf (surface->output, "q "); + _cairo_output_stream_print_matrix (surface->output, &mat); + _cairo_output_stream_printf (surface->output, " cm %s Q\n", draw_surface2); + + cairo_matrix_init_translate (&mat, p_extents.x, p_extents.y); + cairo_matrix_scale (&mat, -1, -1); + cairo_matrix_translate (&mat, -2*p_extents.width, -2*p_extents.height); + cairo_matrix_translate (&mat, -p_extents.x, -p_extents.y); + _cairo_output_stream_printf (surface->output, "q "); + _cairo_output_stream_print_matrix (surface->output, &mat); + _cairo_output_stream_printf (surface->output, " cm %s Q\n", draw_surface2); + } else { + _cairo_output_stream_printf (surface->output, + " %s \n", + draw_surface); + } + + status = _cairo_pdf_surface_close_stream (surface); + if (unlikely (status)) + return status; + + return _cairo_output_stream_get_status (surface->output); +} + +typedef struct _cairo_pdf_color_stop { + double offset; + double color[4]; + cairo_pdf_resource_t resource; +} cairo_pdf_color_stop_t; + +static cairo_int_status_t +cairo_pdf_surface_emit_rgb_linear_function (cairo_pdf_surface_t *surface, + cairo_pdf_color_stop_t *stop1, + cairo_pdf_color_stop_t *stop2, + cairo_pdf_resource_t *function) +{ + int num_elems, i; + cairo_pdf_rgb_linear_function_t elem; + cairo_pdf_resource_t res; + cairo_int_status_t status; + + num_elems = _cairo_array_num_elements (&surface->rgb_linear_functions); + for (i = 0; i < num_elems; i++) { + _cairo_array_copy_element (&surface->rgb_linear_functions, i, &elem); + if (memcmp (&elem.color1[0], &stop1->color[0], sizeof (double)*3) != 0) + continue; + if (memcmp (&elem.color2[0], &stop2->color[0], sizeof (double)*3) != 0) + continue; + *function = elem.resource; + return CAIRO_STATUS_SUCCESS; + } + + res = _cairo_pdf_surface_new_object (surface); + if (res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /FunctionType 2\n" + " /Domain [ 0 1 ]\n" + " /C0 [ %f %f %f ]\n" + " /C1 [ %f %f %f ]\n" + " /N 1\n" + ">>\n" + "endobj\n", + res.id, + stop1->color[0], + stop1->color[1], + stop1->color[2], + stop2->color[0], + stop2->color[1], + stop2->color[2]); + + elem.resource = res; + memcpy (&elem.color1[0], &stop1->color[0], sizeof (double)*3); + memcpy (&elem.color2[0], &stop2->color[0], sizeof (double)*3); + + status = _cairo_array_append (&surface->rgb_linear_functions, &elem); + *function = res; + + return status; +} + +static cairo_int_status_t +cairo_pdf_surface_emit_alpha_linear_function (cairo_pdf_surface_t *surface, + cairo_pdf_color_stop_t *stop1, + cairo_pdf_color_stop_t *stop2, + cairo_pdf_resource_t *function) +{ + int num_elems, i; + cairo_pdf_alpha_linear_function_t elem; + cairo_pdf_resource_t res; + cairo_int_status_t status; + + num_elems = _cairo_array_num_elements (&surface->alpha_linear_functions); + for (i = 0; i < num_elems; i++) { + _cairo_array_copy_element (&surface->alpha_linear_functions, i, &elem); + if (elem.alpha1 != stop1->color[3]) + continue; + if (elem.alpha2 != stop2->color[3]) + continue; + *function = elem.resource; + return CAIRO_STATUS_SUCCESS; + } + + res = _cairo_pdf_surface_new_object (surface); + if (res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /FunctionType 2\n" + " /Domain [ 0 1 ]\n" + " /C0 [ %f ]\n" + " /C1 [ %f ]\n" + " /N 1\n" + ">>\n" + "endobj\n", + res.id, + stop1->color[3], + stop2->color[3]); + + elem.resource = res; + elem.alpha1 = stop1->color[3]; + elem.alpha2 = stop2->color[3]; + + status = _cairo_array_append (&surface->alpha_linear_functions, &elem); + *function = res; + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_stitched_colorgradient (cairo_pdf_surface_t *surface, + unsigned int n_stops, + cairo_pdf_color_stop_t *stops, + cairo_bool_t is_alpha, + cairo_pdf_resource_t *function) +{ + cairo_pdf_resource_t res; + unsigned int i; + cairo_int_status_t status; + + /* emit linear gradients between pairs of subsequent stops... */ + for (i = 0; i < n_stops-1; i++) { + if (is_alpha) { + status = cairo_pdf_surface_emit_alpha_linear_function (surface, + &stops[i], + &stops[i+1], + &stops[i].resource); + if (unlikely (status)) + return status; + } else { + status = cairo_pdf_surface_emit_rgb_linear_function (surface, + &stops[i], + &stops[i+1], + &stops[i].resource); + if (unlikely (status)) + return status; + } + } + + /* ... and stitch them together */ + res = _cairo_pdf_surface_new_object (surface); + if (res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /FunctionType 3\n" + " /Domain [ %f %f ]\n", + res.id, + stops[0].offset, + stops[n_stops - 1].offset); + + _cairo_output_stream_printf (surface->output, + " /Functions [ "); + for (i = 0; i < n_stops-1; i++) + _cairo_output_stream_printf (surface->output, + "%d 0 R ", stops[i].resource.id); + _cairo_output_stream_printf (surface->output, + "]\n"); + + _cairo_output_stream_printf (surface->output, + " /Bounds [ "); + for (i = 1; i < n_stops-1; i++) + _cairo_output_stream_printf (surface->output, + "%f ", stops[i].offset); + _cairo_output_stream_printf (surface->output, + "]\n"); + + _cairo_output_stream_printf (surface->output, + " /Encode [ "); + for (i = 1; i < n_stops; i++) + _cairo_output_stream_printf (surface->output, + "0 1 "); + _cairo_output_stream_printf (surface->output, + "]\n"); + + _cairo_output_stream_printf (surface->output, + ">>\n" + "endobj\n"); + + *function = res; + + return _cairo_output_stream_get_status (surface->output); +} + + +static void +calc_gradient_color (cairo_pdf_color_stop_t *new_stop, + cairo_pdf_color_stop_t *stop1, + cairo_pdf_color_stop_t *stop2) +{ + int i; + double offset = stop1->offset / (stop1->offset + 1.0 - stop2->offset); + + for (i = 0; i < 4; i++) + new_stop->color[i] = stop1->color[i] + offset*(stop2->color[i] - stop1->color[i]); +} + +#define COLOR_STOP_EPSILON 1e-6 + +static cairo_int_status_t +_cairo_pdf_surface_emit_pattern_stops (cairo_pdf_surface_t *surface, + cairo_gradient_pattern_t *pattern, + cairo_pdf_resource_t *color_function, + cairo_pdf_resource_t *alpha_function) +{ + cairo_pdf_color_stop_t *allstops, *stops; + unsigned int n_stops; + unsigned int i; + cairo_bool_t emit_alpha = FALSE; + cairo_int_status_t status; + + color_function->id = 0; + alpha_function->id = 0; + + allstops = _cairo_malloc_ab ((pattern->n_stops + 2), sizeof (cairo_pdf_color_stop_t)); + if (unlikely (allstops == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + stops = &allstops[1]; + n_stops = pattern->n_stops; + + for (i = 0; i < n_stops; i++) { + stops[i].color[0] = pattern->stops[i].color.red; + stops[i].color[1] = pattern->stops[i].color.green; + stops[i].color[2] = pattern->stops[i].color.blue; + stops[i].color[3] = pattern->stops[i].color.alpha; + if (!CAIRO_ALPHA_IS_OPAQUE (stops[i].color[3])) + emit_alpha = TRUE; + stops[i].offset = pattern->stops[i].offset; + } + + if (pattern->base.extend == CAIRO_EXTEND_REPEAT || + pattern->base.extend == CAIRO_EXTEND_REFLECT) { + if (stops[0].offset > COLOR_STOP_EPSILON) { + if (pattern->base.extend == CAIRO_EXTEND_REFLECT) + memcpy (allstops, stops, sizeof (cairo_pdf_color_stop_t)); + else + calc_gradient_color (&allstops[0], &stops[0], &stops[n_stops-1]); + stops = allstops; + n_stops++; + } + stops[0].offset = 0.0; + + if (stops[n_stops-1].offset < 1.0 - COLOR_STOP_EPSILON) { + if (pattern->base.extend == CAIRO_EXTEND_REFLECT) { + memcpy (&stops[n_stops], + &stops[n_stops - 1], + sizeof (cairo_pdf_color_stop_t)); + } else { + calc_gradient_color (&stops[n_stops], &stops[0], &stops[n_stops-1]); + } + n_stops++; + } + stops[n_stops-1].offset = 1.0; + } + + if (stops[0].offset == stops[n_stops - 1].offset) { + /* + * The first and the last stops have the same offset, but we + * don't want a function with an empty domain, because that + * would provoke underdefined behaviour from rasterisers. + * This can only happen with EXTEND_PAD, because EXTEND_NONE + * is optimised into a clear pattern in cairo-gstate, and + * REFLECT/REPEAT are always transformed to have the first + * stop at t=0 and the last stop at t=1. Thus we want a step + * function going from the first color to the last one. + * + * This can be accomplished by stitching three functions: + * - a constant first color function, + * - a step from the first color to the last color (with empty domain) + * - a constant last color function + */ + cairo_pdf_color_stop_t pad_stops[4]; + + assert (pattern->base.extend == CAIRO_EXTEND_PAD); + + pad_stops[0] = pad_stops[1] = stops[0]; + pad_stops[2] = pad_stops[3] = stops[n_stops - 1]; + + pad_stops[0].offset = 0; + pad_stops[3].offset = 1; + + status = _cairo_pdf_surface_emit_stitched_colorgradient (surface, + 4, + pad_stops, + FALSE, + color_function); + if (unlikely (status)) + goto BAIL; + + if (emit_alpha) { + status = _cairo_pdf_surface_emit_stitched_colorgradient (surface, + 4, + pad_stops, + TRUE, + alpha_function); + if (unlikely (status)) + goto BAIL; + } + } else if (n_stops == 2) { + /* no need for stitched function */ + status = cairo_pdf_surface_emit_rgb_linear_function (surface, + &stops[0], + &stops[n_stops - 1], + color_function); + if (unlikely (status)) + goto BAIL; + + if (emit_alpha) { + status = cairo_pdf_surface_emit_alpha_linear_function (surface, + &stops[0], + &stops[n_stops - 1], + alpha_function); + if (unlikely (status)) + goto BAIL; + } + } else { + /* multiple stops: stitch. XXX possible optimization: regularly spaced + * stops do not require stitching. XXX */ + status = _cairo_pdf_surface_emit_stitched_colorgradient (surface, + n_stops, + stops, + FALSE, + color_function); + if (unlikely (status)) + goto BAIL; + + if (emit_alpha) { + status = _cairo_pdf_surface_emit_stitched_colorgradient (surface, + n_stops, + stops, + TRUE, + alpha_function); + if (unlikely (status)) + goto BAIL; + } + } + +BAIL: + free (allstops); + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_repeating_function (cairo_pdf_surface_t *surface, + cairo_gradient_pattern_t *pattern, + cairo_pdf_resource_t *function, + int begin, + int end) +{ + cairo_pdf_resource_t res; + int i; + + res = _cairo_pdf_surface_new_object (surface); + if (res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /FunctionType 3\n" + " /Domain [ %d %d ]\n", + res.id, + begin, + end); + + _cairo_output_stream_printf (surface->output, + " /Functions [ "); + for (i = begin; i < end; i++) + _cairo_output_stream_printf (surface->output, + "%d 0 R ", function->id); + _cairo_output_stream_printf (surface->output, + "]\n"); + + _cairo_output_stream_printf (surface->output, + " /Bounds [ "); + for (i = begin + 1; i < end; i++) + _cairo_output_stream_printf (surface->output, + "%d ", i); + _cairo_output_stream_printf (surface->output, + "]\n"); + + _cairo_output_stream_printf (surface->output, + " /Encode [ "); + for (i = begin; i < end; i++) { + if ((i % 2) && pattern->base.extend == CAIRO_EXTEND_REFLECT) { + _cairo_output_stream_printf (surface->output, + "1 0 "); + } else { + _cairo_output_stream_printf (surface->output, + "0 1 "); + } + } + _cairo_output_stream_printf (surface->output, + "]\n"); + + _cairo_output_stream_printf (surface->output, + ">>\n" + "endobj\n"); + + *function = res; + + return _cairo_output_stream_get_status (surface->output); +} + +static cairo_int_status_t +cairo_pdf_surface_emit_transparency_group (cairo_pdf_surface_t *surface, + cairo_pdf_pattern_t *pdf_pattern, + cairo_pdf_resource_t gstate_resource, + cairo_pdf_resource_t gradient_mask) +{ + cairo_pdf_resource_t smask_resource; + cairo_int_status_t status; + char buf[100]; + double x1, y1, x2, y2; + + if (pdf_pattern->is_shading) { + snprintf(buf, sizeof(buf), + " /Shading\n" + " << /sh%d %d 0 R >>\n", + gradient_mask.id, + gradient_mask.id); + } else { + snprintf(buf, sizeof(buf), + " /Pattern\n" + " << /p%d %d 0 R >>\n", + gradient_mask.id, + gradient_mask.id); + } + + if (pdf_pattern->is_shading) { + cairo_box_t box; + + /* When emitting a shading operator we are in cairo pattern + * coordinates. _cairo_pdf_surface_paint_gradient has set the + * ctm to the pattern matrix (including the conversion from + * pdf to cairo coordinates) */ + _cairo_box_from_rectangle (&box, &pdf_pattern->extents); + _cairo_box_to_doubles (&box, &x1, &y1, &x2, &y2); + _cairo_matrix_transform_bounding_box (&pdf_pattern->pattern->matrix, &x1, &y1, &x2, &y2, NULL); + } else { + cairo_box_double_t box; + + /* When emitting a shading pattern we are in pdf page + * coordinates. The color and alpha shading patterns painted + * in the XObject below contain the cairo pattern to pdf page + * matrix in the /Matrix entry of the pattern. */ + _get_bbox_from_extents (&pdf_pattern->extents, &box); + x1 = box.p1.x; + y1 = box.p1.y; + x2 = box.p2.x; + y2 = box.p2.y; + } + status = _cairo_pdf_surface_open_stream (surface, + NULL, + surface->compress_streams, + " /Type /XObject\n" + " /Subtype /Form\n" + " /FormType 1\n" + " /BBox [ %f %f %f %f ]\n" + " /Resources\n" + " << /ExtGState\n" + " << /a0 << /ca 1 /CA 1 >>" + " >>\n" + "%s" + " >>\n" + " /Group\n" + " << /Type /Group\n" + " /S /Transparency\n" + " /I true\n" + " /CS /DeviceGray\n" + " >>\n", + x1,y1,x2,y2, + buf); + if (unlikely (status)) + return status; + + if (pdf_pattern->is_shading) { + _cairo_output_stream_printf (surface->output, + "/a0 gs /sh%d sh\n", + gradient_mask.id); + } else { + _cairo_output_stream_printf (surface->output, + "q\n" + "/a0 gs\n" + "/Pattern cs /p%d scn\n" + "0 0 %f %f re\n" + "f\n" + "Q\n", + gradient_mask.id, + surface->width, + surface->height); + } + + status = _cairo_pdf_surface_close_stream (surface); + if (unlikely (status)) + return status; + + smask_resource = _cairo_pdf_surface_new_object (surface); + if (smask_resource.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /Mask\n" + " /S /Luminosity\n" + " /G %d 0 R\n" + ">>\n" + "endobj\n", + smask_resource.id, + surface->pdf_stream.self.id); + + /* Create GState which uses the transparency group as an SMask. */ + _cairo_pdf_surface_update_object (surface, gstate_resource); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /ExtGState\n" + " /SMask %d 0 R\n" + " /ca 1\n" + " /CA 1\n" + " /AIS false\n" + ">>\n" + "endobj\n", + gstate_resource.id, + smask_resource.id); + + return _cairo_output_stream_get_status (surface->output); +} + +static void +_cairo_pdf_surface_output_gradient (cairo_pdf_surface_t *surface, + const cairo_pdf_pattern_t *pdf_pattern, + cairo_pdf_resource_t pattern_resource, + const cairo_matrix_t *pat_to_pdf, + const cairo_circle_double_t*start, + const cairo_circle_double_t*end, + const double *domain, + const char *colorspace, + cairo_pdf_resource_t color_function) +{ + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n", + pattern_resource.id); + + if (!pdf_pattern->is_shading) { + _cairo_output_stream_printf (surface->output, + "<< /Type /Pattern\n" + " /PatternType 2\n" + " /Matrix [ "); + _cairo_output_stream_print_matrix (surface->output, pat_to_pdf); + _cairo_output_stream_printf (surface->output, + " ]\n" + " /Shading\n"); + } + + if (pdf_pattern->pattern->type == CAIRO_PATTERN_TYPE_LINEAR) { + _cairo_output_stream_printf (surface->output, + " << /ShadingType 2\n" + " /ColorSpace %s\n" + " /Coords [ %f %f %f %f ]\n", + colorspace, + start->center.x, start->center.y, + end->center.x, end->center.y); + } else { + _cairo_output_stream_printf (surface->output, + " << /ShadingType 3\n" + " /ColorSpace %s\n" + " /Coords [ %f %f %f %f %f %f ]\n", + colorspace, + start->center.x, start->center.y, + MAX (start->radius, 0), + end->center.x, end->center.y, + MAX (end->radius, 0)); + } + + _cairo_output_stream_printf (surface->output, + " /Domain [ %f %f ]\n", + domain[0], domain[1]); + + if (pdf_pattern->pattern->extend != CAIRO_EXTEND_NONE) { + _cairo_output_stream_printf (surface->output, + " /Extend [ true true ]\n"); + } else { + _cairo_output_stream_printf (surface->output, + " /Extend [ false false ]\n"); + } + + _cairo_output_stream_printf (surface->output, + " /Function %d 0 R\n" + " >>\n", + color_function.id); + + if (!pdf_pattern->is_shading) { + _cairo_output_stream_printf (surface->output, + ">>\n"); + } + + _cairo_output_stream_printf (surface->output, + "endobj\n"); +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_gradient (cairo_pdf_surface_t *surface, + cairo_pdf_pattern_t *pdf_pattern) +{ + cairo_gradient_pattern_t *pattern = (cairo_gradient_pattern_t *) pdf_pattern->pattern; + cairo_pdf_resource_t color_function, alpha_function; + cairo_matrix_t pat_to_pdf; + cairo_circle_double_t start, end; + double domain[2]; + cairo_int_status_t status; + cairo_matrix_t mat; + + assert (pattern->n_stops != 0); + + status = _cairo_pdf_surface_emit_pattern_stops (surface, + pattern, + &color_function, + &alpha_function); + if (unlikely (status)) + return status; + + pat_to_pdf = pattern->base.matrix; + status = cairo_matrix_invert (&pat_to_pdf); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_INT_STATUS_SUCCESS); + + if (pdf_pattern->inverted_y_axis) + cairo_matrix_init (&mat, 1, 0, 0, 1, 0, 0); + else + cairo_matrix_init (&mat, 1, 0, 0, -1, 0, surface->height); + + cairo_matrix_multiply (&pat_to_pdf, &pat_to_pdf, &mat); + + if (pattern->base.extend == CAIRO_EXTEND_REPEAT || + pattern->base.extend == CAIRO_EXTEND_REFLECT) + { + double bounds_x1, bounds_x2, bounds_y1, bounds_y2; + double x_scale, y_scale, tolerance; + + /* TODO: use tighter extents */ + bounds_x1 = 0; + bounds_y1 = 0; + bounds_x2 = surface->width; + bounds_y2 = surface->height; + _cairo_matrix_transform_bounding_box (&pattern->base.matrix, + &bounds_x1, &bounds_y1, + &bounds_x2, &bounds_y2, + NULL); + + x_scale = surface->base.x_resolution / surface->base.x_fallback_resolution; + y_scale = surface->base.y_resolution / surface->base.y_fallback_resolution; + + tolerance = fabs (_cairo_matrix_compute_determinant (&pattern->base.matrix)); + tolerance /= _cairo_matrix_transformed_circle_major_axis (&pattern->base.matrix, 1); + tolerance *= MIN (x_scale, y_scale); + + _cairo_gradient_pattern_box_to_parameter (pattern, + bounds_x1, bounds_y1, + bounds_x2, bounds_y2, + tolerance, domain); + } else if (pattern->stops[0].offset == pattern->stops[pattern->n_stops - 1].offset) { + /* + * If the first and the last stop offset are the same, then + * the color function is a step function. + * _cairo_ps_surface_emit_pattern_stops emits it as a stitched + * function no matter how many stops the pattern has. The + * domain of the stitched function will be [0 1] in this case. + * + * This is done to avoid emitting degenerate gradients for + * EXTEND_PAD patterns having a step color function. + */ + domain[0] = 0.0; + domain[1] = 1.0; + + assert (pattern->base.extend == CAIRO_EXTEND_PAD); + } else { + domain[0] = pattern->stops[0].offset; + domain[1] = pattern->stops[pattern->n_stops - 1].offset; + } + + /* PDF requires the first and last stop to be the same as the + * extreme coordinates. For repeating patterns this moves the + * extreme coordinates out to the begin/end of the repeating + * function. For non repeating patterns this may move the extreme + * coordinates in if there are not stops at offset 0 and 1. */ + _cairo_gradient_pattern_interpolate (pattern, domain[0], &start); + _cairo_gradient_pattern_interpolate (pattern, domain[1], &end); + + if (pattern->base.extend == CAIRO_EXTEND_REPEAT || + pattern->base.extend == CAIRO_EXTEND_REFLECT) + { + int repeat_begin, repeat_end; + + repeat_begin = floor (domain[0]); + repeat_end = ceil (domain[1]); + + status = _cairo_pdf_surface_emit_repeating_function (surface, + pattern, + &color_function, + repeat_begin, + repeat_end); + if (unlikely (status)) + return status; + + if (alpha_function.id != 0) { + status = _cairo_pdf_surface_emit_repeating_function (surface, + pattern, + &alpha_function, + repeat_begin, + repeat_end); + if (unlikely (status)) + return status; + } + } else if (pattern->n_stops <= 2) { + /* For EXTEND_NONE and EXTEND_PAD if there are only two stops a + * Type 2 function is used by itself without a stitching + * function. Type 2 functions always have the domain [0 1] */ + domain[0] = 0.0; + domain[1] = 1.0; + } + + _cairo_pdf_surface_update_object (surface, pdf_pattern->pattern_res); + _cairo_pdf_surface_output_gradient (surface, pdf_pattern, + pdf_pattern->pattern_res, + &pat_to_pdf, &start, &end, domain, + "/DeviceRGB", color_function); + + if (alpha_function.id != 0) { + cairo_pdf_resource_t mask_resource; + + assert (pdf_pattern->gstate_res.id != 0); + + /* Create pattern for SMask. */ + mask_resource = _cairo_pdf_surface_new_object (surface); + if (mask_resource.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_pdf_surface_output_gradient (surface, pdf_pattern, + mask_resource, + &pat_to_pdf, &start, &end, domain, + "/DeviceGray", alpha_function); + + status = cairo_pdf_surface_emit_transparency_group (surface, + pdf_pattern, + pdf_pattern->gstate_res, + mask_resource); + if (unlikely (status)) + return status; + } + + return _cairo_output_stream_get_status (surface->output); +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_mesh_pattern (cairo_pdf_surface_t *surface, + cairo_pdf_pattern_t *pdf_pattern) +{ + cairo_matrix_t pat_to_pdf; + cairo_int_status_t status; + cairo_pattern_t *pattern = pdf_pattern->pattern; + cairo_pdf_shading_t shading; + int i; + cairo_pdf_resource_t res; + cairo_matrix_t mat; + + pat_to_pdf = pattern->matrix; + status = cairo_matrix_invert (&pat_to_pdf); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_INT_STATUS_SUCCESS); + + if (pdf_pattern->inverted_y_axis) + cairo_matrix_init (&mat, 1, 0, 0, 1, 0, 0); + else + cairo_matrix_init (&mat, 1, 0, 0, -1, 0, surface->height); + + cairo_matrix_multiply (&pat_to_pdf, &pat_to_pdf, &mat); + + status = _cairo_pdf_shading_init_color (&shading, (cairo_mesh_pattern_t *) pattern); + if (unlikely (status)) + return status; + + res = _cairo_pdf_surface_new_object (surface); + if (unlikely (res.id == 0)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /ShadingType %d\n" + " /ColorSpace /DeviceRGB\n" + " /BitsPerCoordinate %d\n" + " /BitsPerComponent %d\n" + " /BitsPerFlag %d\n" + " /Decode [", + res.id, + shading.shading_type, + shading.bits_per_coordinate, + shading.bits_per_component, + shading.bits_per_flag); + + for (i = 0; i < shading.decode_array_length; i++) + _cairo_output_stream_printf (surface->output, "%f ", shading.decode_array[i]); + + _cairo_output_stream_printf (surface->output, + "]\n" + " /Length %ld\n" + ">>\n" + "stream\n", + shading.data_length); + + _cairo_output_stream_write (surface->output, shading.data, shading.data_length); + + _cairo_output_stream_printf (surface->output, + "\nendstream\n" + "endobj\n"); + + _cairo_pdf_shading_fini (&shading); + + _cairo_pdf_surface_update_object (surface, pdf_pattern->pattern_res); + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /Pattern\n" + " /PatternType 2\n" + " /Matrix [ ", + pdf_pattern->pattern_res.id); + _cairo_output_stream_print_matrix (surface->output, &pat_to_pdf); + _cairo_output_stream_printf (surface->output, + " ]\n" + " /Shading %d 0 R\n" + ">>\n" + "endobj\n", + res.id); + + if (pdf_pattern->gstate_res.id != 0) { + cairo_pdf_resource_t mask_resource; + + /* Create pattern for SMask. */ + res = _cairo_pdf_surface_new_object (surface); + if (unlikely (res.id == 0)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_pdf_shading_init_alpha (&shading, (cairo_mesh_pattern_t *) pattern); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /ShadingType %d\n" + " /ColorSpace /DeviceGray\n" + " /BitsPerCoordinate %d\n" + " /BitsPerComponent %d\n" + " /BitsPerFlag %d\n" + " /Decode [", + res.id, + shading.shading_type, + shading.bits_per_coordinate, + shading.bits_per_component, + shading.bits_per_flag); + + for (i = 0; i < shading.decode_array_length; i++) + _cairo_output_stream_printf (surface->output, "%f ", shading.decode_array[i]); + + _cairo_output_stream_printf (surface->output, + "]\n" + " /Length %ld\n" + ">>\n" + "stream\n", + shading.data_length); + + _cairo_output_stream_write (surface->output, shading.data, shading.data_length); + + _cairo_output_stream_printf (surface->output, + "\nendstream\n" + "endobj\n"); + _cairo_pdf_shading_fini (&shading); + + mask_resource = _cairo_pdf_surface_new_object (surface); + if (unlikely (mask_resource.id == 0)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /Pattern\n" + " /PatternType 2\n" + " /Matrix [ ", + mask_resource.id); + _cairo_output_stream_print_matrix (surface->output, &pat_to_pdf); + _cairo_output_stream_printf (surface->output, + " ]\n" + " /Shading %d 0 R\n" + ">>\n" + "endobj\n", + res.id); + + status = cairo_pdf_surface_emit_transparency_group (surface, + pdf_pattern, + pdf_pattern->gstate_res, + mask_resource); + if (unlikely (status)) + return status; + } + + return _cairo_output_stream_get_status (surface->output); +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_pattern (cairo_pdf_surface_t *surface, cairo_pdf_pattern_t *pdf_pattern) +{ + cairo_int_status_t status; + + switch (pdf_pattern->pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + ASSERT_NOT_REACHED; + status = _cairo_error (CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + break; + + case CAIRO_PATTERN_TYPE_SURFACE: + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + status = _cairo_pdf_surface_emit_surface_pattern (surface, pdf_pattern); + break; + + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + status = _cairo_pdf_surface_emit_gradient (surface, pdf_pattern); + break; + + case CAIRO_PATTERN_TYPE_MESH: + status = _cairo_pdf_surface_emit_mesh_pattern (surface, pdf_pattern); + break; + + default: + ASSERT_NOT_REACHED; + status = _cairo_error (CAIRO_STATUS_PATTERN_TYPE_MISMATCH); + break; + } + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_paint_surface_pattern (cairo_pdf_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_analysis_source_t source_type, + const cairo_rectangle_int_t *extents, + double alpha, + cairo_pdf_resource_t *smask_res, + cairo_bool_t stencil_mask) +{ + cairo_matrix_t cairo_p2d, pdf_p2d; + cairo_int_status_t status; + int alpha_id; + double x_offset; + double y_offset; + cairo_pdf_source_surface_entry_t *pdf_source; + int region_id = 0; + + if (source->extend == CAIRO_EXTEND_PAD && + !(source->type == CAIRO_PATTERN_TYPE_SURFACE && + ((cairo_surface_pattern_t *)source)->surface->type == CAIRO_SURFACE_TYPE_RECORDING)) + { + status = _cairo_pdf_surface_add_padded_image_surface (surface, + source, + extents, + &pdf_source, + &x_offset, + &y_offset, + NULL); + } else { + if (source->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) source; + if (_cairo_pdf_interchange_struct_tree_requires_recording_surface (surface, + surface_pattern, + source_type)) + { + region_id = surface_pattern->region_array_id; + } + } + status = _cairo_pdf_surface_add_source_surface (surface, + NULL, + source, + region_id, + op, + source->filter, + stencil_mask, + FALSE, /* smask */ + alpha != 1.0, /* need_transp_group */ + extents, + smask_res, + + &pdf_source, + &x_offset, + &y_offset, + NULL); + } + if (unlikely (status)) + return status; + + cairo_p2d = source->matrix; + status = cairo_matrix_invert (&cairo_p2d); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_INT_STATUS_SUCCESS); + + pdf_p2d = surface->cairo_to_pdf; + cairo_matrix_multiply (&pdf_p2d, &cairo_p2d, &pdf_p2d); + cairo_matrix_translate (&pdf_p2d, x_offset, y_offset); + if (pdf_source->emit_image) { + int width, height; + + if (pdf_source->bounded) { + width = pdf_source->extents.width; + height = pdf_source->extents.height; + } else { + /* We can't scale an image to an unbounded surface size so just set the size to 1 */ + width = 1; + height = 1; + } + + cairo_matrix_translate (&pdf_p2d, 0.0, height); + cairo_matrix_scale (&pdf_p2d, 1.0, -1.0); + cairo_matrix_scale (&pdf_p2d, width, height); + } + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + if (! _cairo_matrix_is_identity (&pdf_p2d)) { + _cairo_output_stream_print_matrix (surface->output, &pdf_p2d); + _cairo_output_stream_printf (surface->output, " cm\n"); + } + + status = _cairo_pdf_surface_add_alpha (surface, alpha, &alpha_id); + if (unlikely (status)) + return status; + + if (stencil_mask) { + _cairo_output_stream_printf (surface->output, + "/x%d Do\n", + pdf_source->surface_res.id); + } else { + _cairo_output_stream_printf (surface->output, + "/a%d gs /x%d Do\n", + alpha_id, + pdf_source->surface_res.id); + } + + return _cairo_pdf_surface_add_xobject (surface, pdf_source->surface_res); +} + +static cairo_int_status_t +_cairo_pdf_surface_paint_gradient (cairo_pdf_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_rectangle_int_t *extents, + double alpha) +{ + cairo_pdf_resource_t shading_res, gstate_res; + cairo_matrix_t pat_to_pdf; + cairo_int_status_t status; + int alpha_id; + + status = _cairo_pdf_surface_add_pdf_shading (surface, source, + op, extents, + &shading_res, &gstate_res); + if (unlikely (status == CAIRO_INT_STATUS_NOTHING_TO_DO)) + return CAIRO_INT_STATUS_SUCCESS; + if (unlikely (status)) + return status; + + pat_to_pdf = source->matrix; + status = cairo_matrix_invert (&pat_to_pdf); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_INT_STATUS_SUCCESS); + cairo_matrix_multiply (&pat_to_pdf, &pat_to_pdf, &surface->cairo_to_pdf); + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + if (! _cairo_matrix_is_identity (&pat_to_pdf)) { + _cairo_output_stream_print_matrix (surface->output, &pat_to_pdf); + _cairo_output_stream_printf (surface->output, " cm\n"); + } + + status = _cairo_pdf_surface_add_shading (surface, shading_res); + if (unlikely (status)) + return status; + + if (gstate_res.id != 0) { + status = _cairo_pdf_surface_add_smask (surface, gstate_res); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "/s%d gs /sh%d sh\n", + gstate_res.id, + shading_res.id); + } else { + status = _cairo_pdf_surface_add_alpha (surface, alpha, &alpha_id); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "/a%d gs /sh%d sh\n", + alpha_id, + shading_res.id); + } + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_paint_pattern (cairo_pdf_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_analysis_source_t source_type, + const cairo_rectangle_int_t *extents, + double alpha, + cairo_bool_t mask) +{ + switch (source->type) { + case CAIRO_PATTERN_TYPE_SURFACE: + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + return _cairo_pdf_surface_paint_surface_pattern (surface, + op, + source, + source_type, + extents, + alpha, + NULL, + mask); + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + case CAIRO_PATTERN_TYPE_MESH: + return _cairo_pdf_surface_paint_gradient (surface, + op, + source, + extents, + alpha); + + case CAIRO_PATTERN_TYPE_SOLID: + default: + ASSERT_NOT_REACHED; + return CAIRO_STATUS_SUCCESS; + } +} + +static cairo_bool_t +_can_paint_pattern (const cairo_pattern_t *pattern) +{ + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + return FALSE; + + case CAIRO_PATTERN_TYPE_SURFACE: + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + return (pattern->extend == CAIRO_EXTEND_NONE || + pattern->extend == CAIRO_EXTEND_PAD); + + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + return TRUE; + + case CAIRO_PATTERN_TYPE_MESH: + return FALSE; + + default: + ASSERT_NOT_REACHED; + return FALSE; + } +} + +static cairo_int_status_t +_cairo_pdf_surface_select_operator (cairo_pdf_surface_t *surface, + cairo_operator_t op) +{ + cairo_int_status_t status; + + if (surface->reset_gs_required) { + _cairo_output_stream_printf (surface->output, "/gs0 gs\n"); + surface->reset_gs_required = FALSE; + } + + if (op == surface->current_operator) + return CAIRO_STATUS_SUCCESS; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "/b%d gs\n", op); + surface->current_operator = op; + _cairo_pdf_surface_add_operator (surface, op); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_pdf_surface_select_pattern (cairo_pdf_surface_t *surface, + const cairo_pattern_t *pattern, + cairo_pdf_resource_t pattern_res, + cairo_bool_t is_stroke) +{ + cairo_int_status_t status; + int alpha; + const cairo_color_t *solid_color = NULL; + + if (pattern->type == CAIRO_PATTERN_TYPE_SOLID) { + const cairo_solid_pattern_t *solid = (const cairo_solid_pattern_t *) pattern; + + solid_color = &solid->color; + } + + if (solid_color != NULL) { + if (surface->current_pattern_is_solid_color == FALSE || + surface->current_color_red != solid_color->red || + surface->current_color_green != solid_color->green || + surface->current_color_blue != solid_color->blue || + surface->current_color_is_stroke != is_stroke) + { + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "%f %f %f ", + solid_color->red, + solid_color->green, + solid_color->blue); + + if (is_stroke) + _cairo_output_stream_printf (surface->output, "RG "); + else + _cairo_output_stream_printf (surface->output, "rg "); + + surface->current_color_red = solid_color->red; + surface->current_color_green = solid_color->green; + surface->current_color_blue = solid_color->blue; + surface->current_color_is_stroke = is_stroke; + } + + if (surface->current_pattern_is_solid_color == FALSE || + surface->current_color_alpha != solid_color->alpha) + { + status = _cairo_pdf_surface_add_alpha (surface, solid_color->alpha, &alpha); + if (unlikely (status)) + return status; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "/a%d gs\n", + alpha); + surface->current_color_alpha = solid_color->alpha; + } + + surface->current_pattern_is_solid_color = TRUE; + } else { + status = _cairo_pdf_surface_add_alpha (surface, 1.0, &alpha); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_add_pattern (surface, pattern_res); + if (unlikely (status)) + return status; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + /* fill-stroke calls select_pattern twice. Don't save if the + * gstate is already saved. */ + if (!surface->select_pattern_gstate_saved) + _cairo_output_stream_printf (surface->output, "q "); + + if (is_stroke) { + _cairo_output_stream_printf (surface->output, + "/Pattern CS /p%d SCN ", + pattern_res.id); + } else { + _cairo_output_stream_printf (surface->output, + "/Pattern cs /p%d scn ", + pattern_res.id); + } + _cairo_output_stream_printf (surface->output, + "/a%d gs\n", + alpha); + surface->select_pattern_gstate_saved = TRUE; + surface->current_pattern_is_solid_color = FALSE; + } + + return _cairo_output_stream_get_status (surface->output); +} + +static cairo_int_status_t +_cairo_pdf_surface_unselect_pattern (cairo_pdf_surface_t *surface) +{ + cairo_int_status_t status; + + if (surface->select_pattern_gstate_saved) { + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, "Q\n"); + _cairo_pdf_operators_reset (&surface->pdf_operators); + surface->current_pattern_is_solid_color = FALSE; + } + surface->select_pattern_gstate_saved = FALSE; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_pdf_surface_show_page (void *abstract_surface) +{ + cairo_pdf_surface_t *surface = abstract_surface; + cairo_int_status_t status; + + status = _cairo_array_append (&surface->page_labels, &surface->current_page_label); + if (unlikely (status)) + return status; + + surface->current_page_label = NULL; + + status = _cairo_pdf_interchange_end_page_content (surface); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_close_content_stream (surface, FALSE); + if (unlikely (status)) + return status; + + _cairo_surface_clipper_reset (&surface->clipper); + + status = _cairo_pdf_surface_write_page (surface); + if (unlikely (status)) + return status; + + _cairo_pdf_surface_clear (surface, FALSE); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_cairo_pdf_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle) +{ + cairo_pdf_surface_t *surface = abstract_surface; + + if (surface->surface_bounded) + *rectangle = surface->surface_extents; + + return surface->surface_bounded; +} + +static void +_cairo_pdf_surface_get_font_options (void *abstract_surface, + cairo_font_options_t *options) +{ + _cairo_font_options_init_default (options); + + cairo_font_options_set_hint_style (options, CAIRO_HINT_STYLE_NONE); + cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_OFF); + cairo_font_options_set_antialias (options, CAIRO_ANTIALIAS_GRAY); + _cairo_font_options_set_round_glyph_positions (options, CAIRO_ROUND_GLYPH_POS_OFF); +} + +static cairo_int_status_t +_cairo_pdf_surface_write_pages (cairo_pdf_surface_t *surface) +{ + cairo_pdf_page_info_t *page_info; + int num_pages, i; + cairo_int_status_t status; + + status = _cairo_pdf_surface_object_begin (surface, surface->pages_resource); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Type /Pages\n" + " /Kids [ "); + + num_pages = _cairo_array_num_elements (&surface->pages); + for (i = 0; i < num_pages; i++) { + page_info = _cairo_array_index (&surface->pages, i); + _cairo_output_stream_printf (surface->object_stream.stream, "%d 0 R ", page_info->page_res.id); + } + + _cairo_output_stream_printf (surface->object_stream.stream, "]\n"); + _cairo_output_stream_printf (surface->object_stream.stream, " /Count %d\n", num_pages); + + + /* TODO: Figure out which other defaults to be inherited by /Page + * objects. */ + _cairo_output_stream_printf (surface->object_stream.stream, + ">>\n"); + _cairo_pdf_surface_object_end (surface); + + return CAIRO_INT_STATUS_SUCCESS; +} + +cairo_int_status_t +_cairo_utf8_to_pdf_string (const char *utf8, char **str_out) +{ + int i; + int len; + unsigned char *p; + cairo_bool_t ascii; + char *str; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + + ascii = TRUE; + p = (unsigned char *)utf8; + len = 0; + while (*p) { + if (*p < 32 || *p > 126) { + ascii = FALSE; + break; + } + if (*p == '(' || *p == ')' || *p == '\\') + len += 2; + else + len++; + p++; + } + + if (ascii) { + str = _cairo_malloc (len + 3); + if (str == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + str[0] = '('; + p = (unsigned char *)utf8; + i = 1; + while (*p) { + if (*p == '(' || *p == ')' || *p == '\\') + str[i++] = '\\'; + str[i++] = *p; + p++; + } + str[i++] = ')'; + str[i++] = 0; + } else { + uint16_t *utf16 = NULL; + int utf16_len = 0; + + status = _cairo_utf8_to_utf16 (utf8, -1, &utf16, &utf16_len); + if (unlikely (status)) + return status; + + str = _cairo_malloc (utf16_len*4 + 7); + if (str == NULL) { + free (utf16); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + strcpy (str, ""); + free (utf16); + } + *str_out = str; + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_unicode_for_glyph (cairo_pdf_surface_t *surface, + const char *utf8) +{ + uint16_t *utf16 = NULL; + int utf16_len = 0; + cairo_int_status_t status; + int i; + + if (utf8 && *utf8) { + status = _cairo_utf8_to_utf16 (utf8, -1, &utf16, &utf16_len); + if (unlikely (status == CAIRO_INT_STATUS_INVALID_STRING)) { + utf16 = NULL; + utf16_len = 0; + } else if (unlikely (status)) { + return status; + } + } + + _cairo_output_stream_printf (surface->output, "<"); + if (utf16 == NULL || utf16_len == 0) { + /* According to the "ToUnicode Mapping File Tutorial" + * http://www.adobe.com/devnet/acrobat/pdfs/5411.ToUnicode.pdf + * + * Glyphs that do not map to a Unicode code point must be + * mapped to 0xfffd "REPLACEMENT CHARACTER". + */ + _cairo_output_stream_printf (surface->output, + "fffd"); + } else { + for (i = 0; i < utf16_len; i++) + _cairo_output_stream_printf (surface->output, + "%04x", (int) (utf16[i])); + } + _cairo_output_stream_printf (surface->output, ">"); + + free (utf16); + + return CAIRO_STATUS_SUCCESS; +} + +/* Bob Jenkins hash + * + * Public domain code from: + * http://burtleburtle.net/bob/hash/doobs.html + */ + +#define HASH_MIX(a,b,c) \ +{ \ + a -= b; a -= c; a ^= (c>>13); \ + b -= c; b -= a; b ^= (a<<8); \ + c -= a; c -= b; c ^= (b>>13); \ + a -= b; a -= c; a ^= (c>>12); \ + b -= c; b -= a; b ^= (a<<16); \ + c -= a; c -= b; c ^= (b>>5); \ + a -= b; a -= c; a ^= (c>>3); \ + b -= c; b -= a; b ^= (a<<10); \ + c -= a; c -= b; c ^= (b>>15); \ +} + +static uint32_t +_hash_data (const unsigned char *data, int length, uint32_t initval) +{ + uint32_t a, b, c, len; + + len = length; + a = b = 0x9e3779b9; /* the golden ratio; an arbitrary value */ + c = initval; /* the previous hash value */ + + while (len >= 12) { + a += (data[0] + ((uint32_t)data[1]<<8) + ((uint32_t)data[2]<<16) + ((uint32_t)data[3]<<24)); + b += (data[4] + ((uint32_t)data[5]<<8) + ((uint32_t)data[6]<<16) + ((uint32_t)data[7]<<24)); + c += (data[8] + ((uint32_t)data[9]<<8) + ((uint32_t)data[10]<<16)+ ((uint32_t)data[11]<<24)); + HASH_MIX (a,b,c); + data += 12; + len -= 12; + } + + c += length; + switch(len) { + case 11: c+= ((uint32_t) data[10] << 24); /* fall through */ + case 10: c+= ((uint32_t) data[9] << 16); /* fall through */ + case 9 : c+= ((uint32_t) data[8] << 8); /* fall through */ + case 8 : b+= ((uint32_t) data[7] << 24); /* fall through */ + case 7 : b+= ((uint32_t) data[6] << 16); /* fall through */ + case 6 : b+= ((uint32_t) data[5] << 8); /* fall through */ + case 5 : b+= data[4]; /* fall through */ + case 4 : a+= ((uint32_t) data[3] << 24); /* fall through */ + case 3 : a+= ((uint32_t) data[2] << 16); /* fall through */ + case 2 : a+= ((uint32_t) data[1] << 8); /* fall through */ + case 1 : a+= data[0]; + } + HASH_MIX (a,b,c); + + return c; +} + +static void +_create_font_subset_tag (cairo_scaled_font_subset_t *font_subset, + const char *font_name, + char *tag) +{ + uint32_t hash; + int i; + + hash = _hash_data ((unsigned char *) font_name, strlen(font_name), 0); + hash = _hash_data ((unsigned char *) (font_subset->glyphs), + font_subset->num_glyphs * sizeof(unsigned long), hash); + + for (i = 0; i < 6; i++) { + tag[i] = 'A' + (hash % 26); + hash /= 26; + } + tag[i] = 0; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_to_unicode_stream (cairo_pdf_surface_t *surface, + cairo_scaled_font_subset_t *font_subset, + cairo_pdf_resource_t *stream) +{ + unsigned int i, num_bfchar; + cairo_int_status_t status; + + stream->id = 0; + + status = _cairo_pdf_surface_open_stream (surface, + NULL, + surface->compress_streams, + NULL); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "/CIDInit /ProcSet findresource begin\n" + "12 dict begin\n" + "begincmap\n" + "/CIDSystemInfo\n" + "<< /Registry (Adobe)\n" + " /Ordering (UCS)\n" + " /Supplement 0\n" + ">> def\n" + "/CMapName /Adobe-Identity-UCS def\n" + "/CMapType 2 def\n" + "1 begincodespacerange\n"); + + if (font_subset->is_composite && !font_subset->is_latin) { + _cairo_output_stream_printf (surface->output, + "<0000> \n"); + } else { + _cairo_output_stream_printf (surface->output, + "<00> \n"); + } + + _cairo_output_stream_printf (surface->output, + "endcodespacerange\n"); + + if (font_subset->is_scaled) { + /* Type 3 fonts include glyph 0 in the subset */ + num_bfchar = font_subset->num_glyphs; + + /* The CMap specification has a limit of 100 characters per beginbfchar operator */ + _cairo_output_stream_printf (surface->output, + "%d beginbfchar\n", + num_bfchar > 100 ? 100 : num_bfchar); + + for (i = 0; i < num_bfchar; i++) { + if (i != 0 && i % 100 == 0) { + _cairo_output_stream_printf (surface->output, + "endbfchar\n" + "%d beginbfchar\n", + num_bfchar - i > 100 ? 100 : num_bfchar - i); + } + _cairo_output_stream_printf (surface->output, "<%02x> ", i); + status = _cairo_pdf_surface_emit_unicode_for_glyph (surface, + font_subset->utf8[i]); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "\n"); + } + } else { + /* Other fonts reserve glyph 0 for .notdef. Omit glyph 0 from the /ToUnicode map */ + num_bfchar = font_subset->num_glyphs - 1; + + /* The CMap specification has a limit of 100 characters per beginbfchar operator */ + _cairo_output_stream_printf (surface->output, + "%d beginbfchar\n", + num_bfchar > 100 ? 100 : num_bfchar); + + for (i = 0; i < num_bfchar; i++) { + if (i != 0 && i % 100 == 0) { + _cairo_output_stream_printf (surface->output, + "endbfchar\n" + "%d beginbfchar\n", + num_bfchar - i > 100 ? 100 : num_bfchar - i); + } + if (font_subset->is_latin) + _cairo_output_stream_printf (surface->output, "<%02x> ", font_subset->to_latin_char[i + 1]); + else if (font_subset->is_composite) + _cairo_output_stream_printf (surface->output, "<%04x> ", i + 1); + else + _cairo_output_stream_printf (surface->output, "<%02x> ", i + 1); + + status = _cairo_pdf_surface_emit_unicode_for_glyph (surface, + font_subset->utf8[i + 1]); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "\n"); + } + } + + _cairo_output_stream_printf (surface->output, + "endbfchar\n"); + + _cairo_output_stream_printf (surface->output, + "endcmap\n" + "CMapName currentdict /CMap defineresource pop\n" + "end\n" + "end\n"); + + *stream = surface->pdf_stream.self; + return _cairo_pdf_surface_close_stream (surface); +} + +#define PDF_UNITS_PER_EM 1000 + +static cairo_int_status_t +_cairo_pdf_surface_emit_cff_font (cairo_pdf_surface_t *surface, + cairo_scaled_font_subset_t *font_subset, + cairo_cff_subset_t *subset) +{ + cairo_pdf_resource_t stream, descriptor, cidfont_dict; + cairo_pdf_resource_t subset_resource, to_unicode_stream; + cairo_pdf_font_t font; + unsigned int i, last_glyph; + cairo_int_status_t status; + char tag[10]; + + _create_font_subset_tag (font_subset, subset->ps_name, tag); + + subset_resource = _cairo_pdf_surface_get_font_resource (surface, + font_subset->font_id, + font_subset->subset_id); + if (subset_resource.id == 0) + return CAIRO_STATUS_SUCCESS; + + status = _cairo_pdf_surface_open_stream (surface, + NULL, + TRUE, + font_subset->is_latin ? + " /Subtype /Type1C\n" : + " /Subtype /CIDFontType0C\n"); + if (unlikely (status)) + return status; + + stream = surface->pdf_stream.self; + _cairo_output_stream_write (surface->output, + subset->data, subset->data_length); + status = _cairo_pdf_surface_close_stream (surface); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_emit_to_unicode_stream (surface, + font_subset, + &to_unicode_stream); + if (_cairo_int_status_is_error (status)) + return status; + + descriptor = _cairo_pdf_surface_new_object (surface); + if (descriptor.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /FontDescriptor\n" + " /FontName /%s+%s\n", + descriptor.id, + tag, + subset->ps_name); + + if (subset->family_name_utf8) { + char *pdf_str; + + status = _cairo_utf8_to_pdf_string (subset->family_name_utf8, &pdf_str); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + _cairo_output_stream_printf (surface->output, + " /FontFamily %s\n", + pdf_str); + free (pdf_str); + } else if (status != CAIRO_INT_STATUS_INVALID_STRING) { + return status; + } + } + + _cairo_output_stream_printf (surface->output, + " /Flags 4\n" + " /FontBBox [ %ld %ld %ld %ld ]\n" + " /ItalicAngle 0\n" + " /Ascent %ld\n" + " /Descent %ld\n" + " /CapHeight %ld\n" + " /StemV 80\n" + " /StemH 80\n" + " /FontFile3 %u 0 R\n" + ">>\n" + "endobj\n", + (long)(subset->x_min*PDF_UNITS_PER_EM), + (long)(subset->y_min*PDF_UNITS_PER_EM), + (long)(subset->x_max*PDF_UNITS_PER_EM), + (long)(subset->y_max*PDF_UNITS_PER_EM), + (long)(subset->ascent*PDF_UNITS_PER_EM), + (long)(subset->descent*PDF_UNITS_PER_EM), + (long)(subset->y_max*PDF_UNITS_PER_EM), + stream.id); + + if (font_subset->is_latin) { + /* find last glyph used */ + for (i = 255; i >= 32; i--) + if (font_subset->latin_to_subset_glyph_index[i] > 0) + break; + + last_glyph = i; + _cairo_pdf_surface_update_object (surface, subset_resource); + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /Font\n" + " /Subtype /Type1\n" + " /BaseFont /%s+%s\n" + " /FirstChar 32\n" + " /LastChar %d\n" + " /FontDescriptor %d 0 R\n" + " /Encoding /WinAnsiEncoding\n" + " /Widths [", + subset_resource.id, + tag, + subset->ps_name, + last_glyph, + descriptor.id); + + for (i = 32; i < last_glyph + 1; i++) { + int glyph = font_subset->latin_to_subset_glyph_index[i]; + if (glyph > 0) { + _cairo_output_stream_printf (surface->output, + " %f", + (subset->widths[glyph]*PDF_UNITS_PER_EM)); + } else { + _cairo_output_stream_printf (surface->output, " 0"); + } + } + + _cairo_output_stream_printf (surface->output, + " ]\n"); + + if (to_unicode_stream.id != 0) + _cairo_output_stream_printf (surface->output, + " /ToUnicode %d 0 R\n", + to_unicode_stream.id); + + _cairo_output_stream_printf (surface->output, + ">>\n" + "endobj\n"); + } else { + cidfont_dict = _cairo_pdf_surface_new_object (surface); + if (cidfont_dict.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /Font\n" + " /Subtype /CIDFontType0\n" + " /BaseFont /%s+%s\n" + " /CIDSystemInfo\n" + " << /Registry (Adobe)\n" + " /Ordering (Identity)\n" + " /Supplement 0\n" + " >>\n" + " /FontDescriptor %d 0 R\n" + " /W [0 [", + cidfont_dict.id, + tag, + subset->ps_name, + descriptor.id); + + for (i = 0; i < font_subset->num_glyphs; i++) + _cairo_output_stream_printf (surface->output, + " %f", + (subset->widths[i]*PDF_UNITS_PER_EM)); + + _cairo_output_stream_printf (surface->output, + " ]]\n" + ">>\n" + "endobj\n"); + + _cairo_pdf_surface_update_object (surface, subset_resource); + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /Font\n" + " /Subtype /Type0\n" + " /BaseFont /%s+%s\n" + " /Encoding /Identity-H\n" + " /DescendantFonts [ %d 0 R]\n", + subset_resource.id, + tag, + subset->ps_name, + cidfont_dict.id); + + if (to_unicode_stream.id != 0) + _cairo_output_stream_printf (surface->output, + " /ToUnicode %d 0 R\n", + to_unicode_stream.id); + + _cairo_output_stream_printf (surface->output, + ">>\n" + "endobj\n"); + } + + font.font_id = font_subset->font_id; + font.subset_id = font_subset->subset_id; + font.subset_resource = subset_resource; + status = _cairo_array_append (&surface->fonts, &font); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_cff_font_subset (cairo_pdf_surface_t *surface, + cairo_scaled_font_subset_t *font_subset) +{ + cairo_int_status_t status; + cairo_cff_subset_t subset; + char name[64]; + + snprintf (name, sizeof name, "CairoFont-%d-%d", + font_subset->font_id, font_subset->subset_id); + status = _cairo_cff_subset_init (&subset, name, font_subset); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_emit_cff_font (surface, font_subset, &subset); + + _cairo_cff_subset_fini (&subset); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_cff_fallback_font (cairo_pdf_surface_t *surface, + cairo_scaled_font_subset_t *font_subset) +{ + cairo_int_status_t status; + cairo_cff_subset_t subset; + char name[64]; + + /* CFF fallback subsetting does not work with 8-bit glyphs unless + * they are a latin subset */ + if (!font_subset->is_composite && !font_subset->is_latin) + return CAIRO_INT_STATUS_UNSUPPORTED; + + snprintf (name, sizeof name, "CairoFont-%d-%d", + font_subset->font_id, font_subset->subset_id); + status = _cairo_cff_fallback_init (&subset, name, font_subset); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_emit_cff_font (surface, font_subset, &subset); + + _cairo_cff_fallback_fini (&subset); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_type1_font (cairo_pdf_surface_t *surface, + cairo_scaled_font_subset_t *font_subset, + cairo_type1_subset_t *subset) +{ + cairo_pdf_resource_t stream, descriptor, subset_resource, to_unicode_stream; + cairo_pdf_font_t font; + cairo_int_status_t status; + unsigned long length; + unsigned int i, last_glyph; + char tag[10]; + + _create_font_subset_tag (font_subset, subset->base_font, tag); + + subset_resource = _cairo_pdf_surface_get_font_resource (surface, + font_subset->font_id, + font_subset->subset_id); + if (subset_resource.id == 0) + return CAIRO_STATUS_SUCCESS; + + length = subset->header_length + subset->data_length + subset->trailer_length; + status = _cairo_pdf_surface_open_stream (surface, + NULL, + TRUE, + " /Length1 %lu\n" + " /Length2 %lu\n" + " /Length3 %lu\n", + subset->header_length, + subset->data_length, + subset->trailer_length); + if (unlikely (status)) + return status; + + stream = surface->pdf_stream.self; + _cairo_output_stream_write (surface->output, subset->data, length); + status = _cairo_pdf_surface_close_stream (surface); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_emit_to_unicode_stream (surface, + font_subset, + &to_unicode_stream); + if (_cairo_int_status_is_error (status)) + return status; + + last_glyph = font_subset->num_glyphs - 1; + if (font_subset->is_latin) { + /* find last glyph used */ + for (i = 255; i >= 32; i--) + if (font_subset->latin_to_subset_glyph_index[i] > 0) + break; + + last_glyph = i; + } + + descriptor = _cairo_pdf_surface_new_object (surface); + if (descriptor.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /FontDescriptor\n" + " /FontName /%s+%s\n" + " /Flags 4\n" + " /FontBBox [ %ld %ld %ld %ld ]\n" + " /ItalicAngle 0\n" + " /Ascent %ld\n" + " /Descent %ld\n" + " /CapHeight %ld\n" + " /StemV 80\n" + " /StemH 80\n" + " /FontFile %u 0 R\n" + ">>\n" + "endobj\n", + descriptor.id, + tag, + subset->base_font, + (long)(subset->x_min*PDF_UNITS_PER_EM), + (long)(subset->y_min*PDF_UNITS_PER_EM), + (long)(subset->x_max*PDF_UNITS_PER_EM), + (long)(subset->y_max*PDF_UNITS_PER_EM), + (long)(subset->ascent*PDF_UNITS_PER_EM), + (long)(subset->descent*PDF_UNITS_PER_EM), + (long)(subset->y_max*PDF_UNITS_PER_EM), + stream.id); + + _cairo_pdf_surface_update_object (surface, subset_resource); + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /Font\n" + " /Subtype /Type1\n" + " /BaseFont /%s+%s\n" + " /FirstChar %d\n" + " /LastChar %d\n" + " /FontDescriptor %d 0 R\n", + subset_resource.id, + tag, + subset->base_font, + font_subset->is_latin ? 32 : 0, + last_glyph, + descriptor.id); + + if (font_subset->is_latin) + _cairo_output_stream_printf (surface->output, " /Encoding /WinAnsiEncoding\n"); + + _cairo_output_stream_printf (surface->output, " /Widths ["); + if (font_subset->is_latin) { + for (i = 32; i < last_glyph + 1; i++) { + int glyph = font_subset->latin_to_subset_glyph_index[i]; + if (glyph > 0) { + _cairo_output_stream_printf (surface->output, + " %f", + (subset->widths[glyph]*PDF_UNITS_PER_EM)); + } else { + _cairo_output_stream_printf (surface->output, " 0"); + } + } + } else { + for (i = 0; i < font_subset->num_glyphs; i++) + _cairo_output_stream_printf (surface->output, + " %f", + (subset->widths[i]*PDF_UNITS_PER_EM)); + } + + _cairo_output_stream_printf (surface->output, + " ]\n"); + + if (to_unicode_stream.id != 0) + _cairo_output_stream_printf (surface->output, + " /ToUnicode %d 0 R\n", + to_unicode_stream.id); + + _cairo_output_stream_printf (surface->output, + ">>\n" + "endobj\n"); + + font.font_id = font_subset->font_id; + font.subset_id = font_subset->subset_id; + font.subset_resource = subset_resource; + return _cairo_array_append (&surface->fonts, &font); +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_type1_font_subset (cairo_pdf_surface_t *surface, + cairo_scaled_font_subset_t *font_subset) +{ + cairo_int_status_t status; + cairo_type1_subset_t subset; + char name[64]; + + /* 16-bit glyphs not compatible with Type 1 fonts */ + if (font_subset->is_composite && !font_subset->is_latin) + return CAIRO_INT_STATUS_UNSUPPORTED; + + snprintf (name, sizeof name, "CairoFont-%d-%d", + font_subset->font_id, font_subset->subset_id); + status = _cairo_type1_subset_init (&subset, name, font_subset, FALSE); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_emit_type1_font (surface, font_subset, &subset); + + _cairo_type1_subset_fini (&subset); + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_type1_fallback_font (cairo_pdf_surface_t *surface, + cairo_scaled_font_subset_t *font_subset) +{ + cairo_int_status_t status; + cairo_type1_subset_t subset; + char name[64]; + + /* 16-bit glyphs not compatible with Type 1 fonts */ + if (font_subset->is_composite && !font_subset->is_latin) + return CAIRO_INT_STATUS_UNSUPPORTED; + + snprintf (name, sizeof name, "CairoFont-%d-%d", + font_subset->font_id, font_subset->subset_id); + status = _cairo_type1_fallback_init_binary (&subset, name, font_subset); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_emit_type1_font (surface, font_subset, &subset); + + _cairo_type1_fallback_fini (&subset); + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_truetype_font_subset (cairo_pdf_surface_t *surface, + cairo_scaled_font_subset_t *font_subset) +{ + cairo_pdf_resource_t stream, descriptor, cidfont_dict; + cairo_pdf_resource_t subset_resource, to_unicode_stream; + cairo_int_status_t status; + cairo_pdf_font_t font; + cairo_truetype_subset_t subset; + unsigned int i, last_glyph; + char tag[10]; + + subset_resource = _cairo_pdf_surface_get_font_resource (surface, + font_subset->font_id, + font_subset->subset_id); + if (subset_resource.id == 0) + return CAIRO_STATUS_SUCCESS; + + status = _cairo_truetype_subset_init_pdf (&subset, font_subset); + if (unlikely (status)) + return status; + + _create_font_subset_tag (font_subset, subset.ps_name, tag); + + status = _cairo_pdf_surface_open_stream (surface, + NULL, + TRUE, + " /Length1 %lu\n", + subset.data_length); + if (unlikely (status)) { + _cairo_truetype_subset_fini (&subset); + return status; + } + + stream = surface->pdf_stream.self; + _cairo_output_stream_write (surface->output, + subset.data, subset.data_length); + status = _cairo_pdf_surface_close_stream (surface); + if (unlikely (status)) { + _cairo_truetype_subset_fini (&subset); + return status; + } + + status = _cairo_pdf_surface_emit_to_unicode_stream (surface, + font_subset, + &to_unicode_stream); + if (_cairo_int_status_is_error (status)) { + _cairo_truetype_subset_fini (&subset); + return status; + } + + descriptor = _cairo_pdf_surface_new_object (surface); + if (descriptor.id == 0) { + _cairo_truetype_subset_fini (&subset); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /FontDescriptor\n" + " /FontName /%s+%s\n", + descriptor.id, + tag, + subset.ps_name); + + if (subset.family_name_utf8) { + char *pdf_str; + + status = _cairo_utf8_to_pdf_string (subset.family_name_utf8, &pdf_str); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + _cairo_output_stream_printf (surface->output, + " /FontFamily %s\n", + pdf_str); + free (pdf_str); + } else if (status != CAIRO_INT_STATUS_INVALID_STRING) { + return status; + } + } + + _cairo_output_stream_printf (surface->output, + " /Flags %d\n" + " /FontBBox [ %ld %ld %ld %ld ]\n" + " /ItalicAngle 0\n" + " /Ascent %ld\n" + " /Descent %ld\n" + " /CapHeight %ld\n" + " /StemV 80\n" + " /StemH 80\n" + " /FontFile2 %u 0 R\n" + ">>\n" + "endobj\n", + font_subset->is_latin ? 32 : 4, + (long)(subset.x_min*PDF_UNITS_PER_EM), + (long)(subset.y_min*PDF_UNITS_PER_EM), + (long)(subset.x_max*PDF_UNITS_PER_EM), + (long)(subset.y_max*PDF_UNITS_PER_EM), + (long)(subset.ascent*PDF_UNITS_PER_EM), + (long)(subset.descent*PDF_UNITS_PER_EM), + (long)(subset.y_max*PDF_UNITS_PER_EM), + stream.id); + + if (font_subset->is_latin) { + /* find last glyph used */ + for (i = 255; i >= 32; i--) + if (font_subset->latin_to_subset_glyph_index[i] > 0) + break; + + last_glyph = i; + _cairo_pdf_surface_update_object (surface, subset_resource); + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /Font\n" + " /Subtype /TrueType\n" + " /BaseFont /%s+%s\n" + " /FirstChar 32\n" + " /LastChar %d\n" + " /FontDescriptor %d 0 R\n" + " /Encoding /WinAnsiEncoding\n" + " /Widths [", + subset_resource.id, + tag, + subset.ps_name, + last_glyph, + descriptor.id); + + for (i = 32; i < last_glyph + 1; i++) { + int glyph = font_subset->latin_to_subset_glyph_index[i]; + if (glyph > 0) { + _cairo_output_stream_printf (surface->output, + " %f", + (subset.widths[glyph]*PDF_UNITS_PER_EM)); + } else { + _cairo_output_stream_printf (surface->output, " 0"); + } + } + + _cairo_output_stream_printf (surface->output, + " ]\n"); + + if (to_unicode_stream.id != 0) + _cairo_output_stream_printf (surface->output, + " /ToUnicode %d 0 R\n", + to_unicode_stream.id); + + _cairo_output_stream_printf (surface->output, + ">>\n" + "endobj\n"); + } else { + cidfont_dict = _cairo_pdf_surface_new_object (surface); + if (cidfont_dict.id == 0) { + _cairo_truetype_subset_fini (&subset); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /Font\n" + " /Subtype /CIDFontType2\n" + " /BaseFont /%s+%s\n" + " /CIDSystemInfo\n" + " << /Registry (Adobe)\n" + " /Ordering (Identity)\n" + " /Supplement 0\n" + " >>\n" + " /FontDescriptor %d 0 R\n" + " /W [0 [", + cidfont_dict.id, + tag, + subset.ps_name, + descriptor.id); + + for (i = 0; i < font_subset->num_glyphs; i++) + _cairo_output_stream_printf (surface->output, + " %f", + (subset.widths[i]*PDF_UNITS_PER_EM)); + + _cairo_output_stream_printf (surface->output, + " ]]\n" + ">>\n" + "endobj\n"); + + _cairo_pdf_surface_update_object (surface, subset_resource); + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /Font\n" + " /Subtype /Type0\n" + " /BaseFont /%s+%s\n" + " /Encoding /Identity-H\n" + " /DescendantFonts [ %d 0 R]\n", + subset_resource.id, + tag, + subset.ps_name, + cidfont_dict.id); + + if (to_unicode_stream.id != 0) + _cairo_output_stream_printf (surface->output, + " /ToUnicode %d 0 R\n", + to_unicode_stream.id); + + _cairo_output_stream_printf (surface->output, + ">>\n" + "endobj\n"); + } + + font.font_id = font_subset->font_id; + font.subset_id = font_subset->subset_id; + font.subset_resource = subset_resource; + status = _cairo_array_append (&surface->fonts, &font); + + _cairo_truetype_subset_fini (&subset); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_emit_imagemask (cairo_image_surface_t *image, + cairo_output_stream_t *stream) +{ + uint8_t *byte, output_byte; + int row, col, num_cols; + + /* The only image type supported by Type 3 fonts are 1-bit image + * masks */ + assert (image->format == CAIRO_FORMAT_A1); + + _cairo_output_stream_printf (stream, + "BI\n" + "/IM true\n" + "/W %d\n" + "/H %d\n" + "/BPC 1\n" + "/D [1 0]\n", + image->width, + image->height); + + _cairo_output_stream_printf (stream, + "ID "); + + num_cols = (image->width + 7) / 8; + for (row = 0; row < image->height; row++) { + byte = image->data + row * image->stride; + for (col = 0; col < num_cols; col++) { + output_byte = CAIRO_BITSWAP8_IF_LITTLE_ENDIAN (*byte); + _cairo_output_stream_write (stream, &output_byte, 1); + byte++; + } + } + + _cairo_output_stream_printf (stream, + "\nEI\n"); + + return _cairo_output_stream_get_status (stream); +} + +static cairo_int_status_t +cairo_pdf_surface_emit_color_glyph (cairo_pdf_surface_t *surface, + cairo_scaled_font_t *scaled_font, + unsigned long glyph_index, + cairo_box_t *bbox, + double *width) +{ + cairo_rectangle_int_t extents; + cairo_scaled_glyph_t *scaled_glyph; + cairo_matrix_t mat; + cairo_int_status_t status; + double x_advance, y_advance; + cairo_matrix_t font_matrix_inverse; + cairo_surface_t *analysis; + cairo_rectangle_int_t old_surface_extents; + cairo_bool_t old_surface_bounded; + cairo_paginated_mode_t old_paginated_mode; + cairo_surface_t *glyph_surface = NULL; + unsigned int regions_id = 0; + cairo_surface_pattern_t surface_pattern; + + _cairo_scaled_font_freeze_cache (scaled_font); + status = _cairo_scaled_glyph_lookup (scaled_font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + if (status == CAIRO_INT_STATUS_SUCCESS) + glyph_surface = cairo_surface_reference (scaled_glyph->recording_surface); + + _cairo_scaled_font_thaw_cache (scaled_font); + if (unlikely (status)) + return status; + + analysis = _cairo_analysis_surface_create (&surface->base, TRUE); + if (unlikely (analysis->status)) { + status = _cairo_surface_set_error (&surface->base, analysis->status); + goto cleanup; + } + + extents.x = _cairo_fixed_to_double (scaled_glyph->bbox.p1.x); + extents.y = _cairo_fixed_to_double (scaled_glyph->bbox.p1.y); + extents.width = _cairo_fixed_to_double (scaled_glyph->bbox.p2.x) - extents.x; + extents.height = _cairo_fixed_to_double (scaled_glyph->bbox.p2.y) - extents.y; + + old_surface_extents = surface->surface_extents; + old_surface_bounded = surface->surface_bounded; + old_paginated_mode = surface->paginated_mode; + surface->paginated_mode = CAIRO_PAGINATED_MODE_ANALYZE; + surface->type3_replay = TRUE; + surface->surface_extents = extents; + surface->surface_bounded = TRUE; + + status = _cairo_recording_surface_region_array_attach (glyph_surface, ®ions_id); + if (status) + goto cleanup; + + status = _cairo_recording_surface_replay_and_create_regions (glyph_surface, regions_id, + NULL, analysis, TRUE, FALSE); + if (status) + goto cleanup; + + surface->surface_extents = old_surface_extents; + surface->surface_bounded = old_surface_bounded; + surface->paginated_mode = old_paginated_mode; + surface->type3_replay = FALSE; + + if (status == CAIRO_INT_STATUS_SUCCESS && + _cairo_analysis_surface_has_unsupported (analysis)) + { + status = CAIRO_INT_STATUS_UNSUPPORTED; + } + + cairo_surface_destroy (analysis); + if (status) + goto cleanup; + + _cairo_pattern_init_for_surface (&surface_pattern, glyph_surface); + surface_pattern.region_array_id = regions_id; + + cairo_matrix_init_identity (&mat); + cairo_matrix_multiply (&mat, &mat, &scaled_font->scale_inverse); + + /* transform glyph extents to operation space */ + cairo_box_t box; + _cairo_box_from_rectangle (&box, &extents); + _cairo_matrix_transform_bounding_box_fixed (&mat, &box, NULL); + _cairo_box_round_to_rectangle (&box, &extents); + + status = cairo_matrix_invert (&mat); + if (status) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto cleanup; + } + + cairo_pattern_set_matrix (&surface_pattern.base, &mat); + + x_advance = scaled_glyph->metrics.x_advance; + y_advance = scaled_glyph->metrics.y_advance; + font_matrix_inverse = scaled_font->font_matrix; + status = cairo_matrix_invert (&font_matrix_inverse); + if (status) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto cleanup; + } + + cairo_matrix_transform_distance (&font_matrix_inverse, &x_advance, &y_advance); + *width = x_advance; + + *bbox = scaled_glyph->bbox; + _cairo_matrix_transform_bounding_box_fixed (&scaled_font->scale_inverse, + bbox, NULL); + + _cairo_output_stream_printf (surface->output, + "%f 0 d0\n", + x_advance); + + _cairo_pdf_surface_paint_surface_pattern (surface, + CAIRO_OPERATOR_OVER, + &surface_pattern.base, + CAIRO_ANALYSIS_SOURCE_NONE, + &extents, + 1.0, /* alpha */ + NULL, /* smask_res */ + FALSE); /* mask */ + + cleanup: + cairo_surface_destroy (glyph_surface); + + return status; +} + +static cairo_int_status_t +cairo_pdf_surface_emit_color_glyph_image (cairo_pdf_surface_t *surface, + cairo_scaled_font_t *scaled_font, + unsigned long glyph_index, + cairo_box_t *bbox, + double *width) +{ + cairo_rectangle_int_t extents; + cairo_pattern_t *image_pattern; + cairo_scaled_glyph_t *scaled_glyph; + cairo_matrix_t mat; + cairo_int_status_t status, status2; + double x_advance, y_advance; + cairo_matrix_t font_matrix_inverse; + + _cairo_scaled_font_freeze_cache (scaled_font); + status = _cairo_scaled_glyph_lookup (scaled_font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + if (unlikely (status)) + goto FAIL; + + extents.x = _cairo_fixed_to_double (scaled_glyph->bbox.p1.x); + extents.y = _cairo_fixed_to_double (scaled_glyph->bbox.p1.y); + extents.width = _cairo_fixed_to_double (scaled_glyph->bbox.p2.x) - extents.x; + extents.height = _cairo_fixed_to_double (scaled_glyph->bbox.p2.y) - extents.y; + + image_pattern = cairo_pattern_create_for_surface (&scaled_glyph->color_surface->base); + + cairo_matrix_init_translate (&mat, extents.x, extents.y); + cairo_matrix_multiply (&mat, &mat, &scaled_font->scale_inverse); + status2 = cairo_matrix_invert (&mat); + cairo_pattern_set_matrix (image_pattern, &mat); + + x_advance = scaled_glyph->metrics.x_advance; + y_advance = scaled_glyph->metrics.y_advance; + font_matrix_inverse = scaled_font->font_matrix; + status2 = cairo_matrix_invert (&font_matrix_inverse); + + /* The invertability of font_matrix is tested in + * pdf_operators_show_glyphs before any glyphs are mapped to the + * subset. */ + assert (status2 == CAIRO_INT_STATUS_SUCCESS); + + cairo_matrix_transform_distance (&font_matrix_inverse, &x_advance, &y_advance); + *width = x_advance; + + *bbox = scaled_glyph->bbox; + _cairo_matrix_transform_bounding_box_fixed (&scaled_font->scale_inverse, + bbox, NULL); + + _cairo_output_stream_printf (surface->output, + "%f 0 d0\n", + x_advance); + + _cairo_pdf_surface_paint_surface_pattern (surface, + CAIRO_OPERATOR_OVER, + image_pattern, + CAIRO_ANALYSIS_SOURCE_NONE, + &extents, + 1.0, /* alpha */ + NULL, /* smask_res */ + FALSE); /* mask */ + cairo_pattern_destroy (image_pattern); + FAIL: + _cairo_scaled_font_thaw_cache (scaled_font); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_type3_font_subset (cairo_pdf_surface_t *surface, + cairo_scaled_font_subset_t *font_subset) +{ + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_pdf_resource_t *glyphs, encoding, char_procs, subset_resource, to_unicode_stream; + cairo_pdf_font_t font; + double *widths; + unsigned int i; + cairo_box_t font_bbox = {{0,0},{0,0}}; + cairo_box_t bbox = {{0,0},{0,0}}; + cairo_surface_t *type3_surface; + + if (font_subset->num_glyphs == 0) + return CAIRO_STATUS_SUCCESS; + + subset_resource = _cairo_pdf_surface_get_font_resource (surface, + font_subset->font_id, + font_subset->subset_id); + if (subset_resource.id == 0) + return CAIRO_STATUS_SUCCESS; + + glyphs = _cairo_malloc_ab (font_subset->num_glyphs, sizeof (cairo_pdf_resource_t)); + if (unlikely (glyphs == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + widths = _cairo_malloc_ab (font_subset->num_glyphs, sizeof (double)); + if (unlikely (widths == NULL)) { + free (glyphs); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + _cairo_pdf_group_resources_clear (&surface->resources); + type3_surface = _cairo_type3_glyph_surface_create (font_subset->scaled_font, + NULL, + _cairo_pdf_emit_imagemask, + surface->font_subsets, + FALSE); + if (unlikely (type3_surface->status)) { + free (glyphs); + free (widths); + return type3_surface->status; + } + + _cairo_type3_glyph_surface_set_font_subsets_callback (type3_surface, + _cairo_pdf_surface_add_font, + surface); + + for (i = 0; i < font_subset->num_glyphs; i++) { + status = _cairo_pdf_surface_open_stream (surface, + NULL, + surface->compress_streams, + NULL); + if (unlikely (status)) + break; + + glyphs[i] = surface->pdf_stream.self; + status = _cairo_type3_glyph_surface_emit_glyph (type3_surface, + surface->output, + font_subset->glyphs[i], + &bbox, + &widths[i]); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + status = cairo_pdf_surface_emit_color_glyph (surface, + font_subset->scaled_font, + font_subset->glyphs[i], + &bbox, + &widths[i]); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + status = cairo_pdf_surface_emit_color_glyph_image (surface, + font_subset->scaled_font, + font_subset->glyphs[i], + &bbox, + &widths[i]); + } + } + if (unlikely (status)) + break; + + status = _cairo_pdf_surface_close_stream (surface); + if (unlikely (status)) + break; + + if (i == 0) { + font_bbox.p1.x = bbox.p1.x; + font_bbox.p1.y = bbox.p1.y; + font_bbox.p2.x = bbox.p2.x; + font_bbox.p2.y = bbox.p2.y; + } else { + if (bbox.p1.x < font_bbox.p1.x) + font_bbox.p1.x = bbox.p1.x; + if (bbox.p1.y < font_bbox.p1.y) + font_bbox.p1.y = bbox.p1.y; + if (bbox.p2.x > font_bbox.p2.x) + font_bbox.p2.x = bbox.p2.x; + if (bbox.p2.y > font_bbox.p2.y) + font_bbox.p2.y = bbox.p2.y; + } + } + cairo_surface_destroy (type3_surface); + if (unlikely (status)) { + free (glyphs); + free (widths); + return status; + } + + encoding = _cairo_pdf_surface_new_object (surface); + if (encoding.id == 0) { + free (glyphs); + free (widths); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /Encoding\n" + " /Differences [0", encoding.id); + for (i = 0; i < font_subset->num_glyphs; i++) + _cairo_output_stream_printf (surface->output, + " /%d", i); + _cairo_output_stream_printf (surface->output, + "]\n" + ">>\n" + "endobj\n"); + + char_procs = _cairo_pdf_surface_new_object (surface); + if (char_procs.id == 0) { + free (glyphs); + free (widths); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<<\n", char_procs.id); + for (i = 0; i < font_subset->num_glyphs; i++) + _cairo_output_stream_printf (surface->output, + " /%d %d 0 R\n", + i, glyphs[i].id); + _cairo_output_stream_printf (surface->output, + ">>\n" + "endobj\n"); + + free (glyphs); + + status = _cairo_pdf_surface_emit_to_unicode_stream (surface, + font_subset, + &to_unicode_stream); + if (_cairo_int_status_is_error (status)) { + free (widths); + return status; + } + + _cairo_pdf_surface_update_object (surface, subset_resource); + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /Font\n" + " /Subtype /Type3\n" + " /FontBBox [%f %f %f %f]\n" + " /FontMatrix [ 1 0 0 -1 0 0 ]\n" + " /Encoding %d 0 R\n" + " /CharProcs %d 0 R\n" + " /FirstChar 0\n" + " /LastChar %d\n", + subset_resource.id, + _cairo_fixed_to_double (font_bbox.p1.x), + _cairo_fixed_to_double (font_bbox.p1.y), + _cairo_fixed_to_double (font_bbox.p2.x), + _cairo_fixed_to_double (font_bbox.p2.y), + encoding.id, + char_procs.id, + font_subset->num_glyphs - 1); + + _cairo_output_stream_printf (surface->output, + " /Widths ["); + for (i = 0; i < font_subset->num_glyphs; i++) + _cairo_output_stream_printf (surface->output, " %f", widths[i]); + _cairo_output_stream_printf (surface->output, + "]\n"); + free (widths); + + _cairo_output_stream_printf (surface->output, + " /Resources\n"); + _cairo_pdf_surface_emit_group_resources (surface, &surface->resources, FALSE); + + if (to_unicode_stream.id != 0) + _cairo_output_stream_printf (surface->output, + " /ToUnicode %d 0 R\n", + to_unicode_stream.id); + + _cairo_output_stream_printf (surface->output, + ">>\n" + "endobj\n"); + + font.font_id = font_subset->font_id; + font.subset_id = font_subset->subset_id; + font.subset_resource = subset_resource; + return _cairo_array_append (&surface->fonts, &font); +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_unscaled_font_subset (cairo_scaled_font_subset_t *font_subset, + void *closure) +{ + cairo_pdf_surface_t *surface = closure; + cairo_int_status_t status; + + status = _cairo_pdf_surface_emit_cff_font_subset (surface, font_subset); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + status = _cairo_pdf_surface_emit_truetype_font_subset (surface, font_subset); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + status = _cairo_pdf_surface_emit_type1_font_subset (surface, font_subset); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + status = _cairo_pdf_surface_emit_cff_fallback_font (surface, font_subset); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + status = _cairo_pdf_surface_emit_type1_fallback_font (surface, font_subset); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + ASSERT_NOT_REACHED; + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_scaled_font_subset (cairo_scaled_font_subset_t *font_subset, + void *closure) +{ + cairo_pdf_surface_t *surface = closure; + cairo_int_status_t status; + + status = _cairo_pdf_surface_emit_type3_font_subset (surface, font_subset); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + ASSERT_NOT_REACHED; + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_pdf_surface_emit_font_subsets (cairo_pdf_surface_t *surface) +{ + cairo_int_status_t status; + + status = _cairo_scaled_font_subsets_foreach_unscaled (surface->font_subsets, + _cairo_pdf_surface_emit_unscaled_font_subset, + surface); + if (unlikely (status)) + goto BAIL; + + status = _cairo_scaled_font_subsets_foreach_scaled (surface->font_subsets, + _cairo_pdf_surface_emit_scaled_font_subset, + surface); + +BAIL: + _cairo_scaled_font_subsets_destroy (surface->font_subsets); + surface->font_subsets = NULL; + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_write_catalog (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t catalog) +{ + cairo_status_t status; + + status = _cairo_pdf_surface_object_begin (surface, catalog); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->object_stream.stream, + "<< /Type /Catalog\n" + " /Pages %d 0 R\n", + surface->pages_resource.id); + + if (surface->struct_tree_root.id != 0) { + _cairo_output_stream_printf (surface->object_stream.stream, + " /StructTreeRoot %d 0 R\n", + surface->struct_tree_root.id); + if (surface->tagged) { + _cairo_output_stream_printf (surface->object_stream.stream, + " /MarkInfo << /Marked true >>\n"); + } + } + + if (surface->outlines_dict_res.id != 0) { + _cairo_output_stream_printf (surface->object_stream.stream, + " /Outlines %d 0 R\n", + surface->outlines_dict_res.id); + } + + if (surface->page_labels_res.id != 0) { + _cairo_output_stream_printf (surface->object_stream.stream, + " /PageLabels %d 0 R\n", + surface->page_labels_res.id); + } + + if (surface->names_dict_res.id != 0) { + _cairo_output_stream_printf (surface->object_stream.stream, + " /Names %d 0 R\n", + surface->names_dict_res.id); + } + + _cairo_output_stream_printf (surface->object_stream.stream, + ">>\n"); + _cairo_pdf_surface_object_end (surface); + + return status; +} + +static long long +_cairo_pdf_surface_write_xref (cairo_pdf_surface_t *surface) +{ + cairo_pdf_object_t *object; + int num_objects, i; + long long offset; + + num_objects = _cairo_array_num_elements (&surface->objects); + + offset = _cairo_output_stream_get_position (surface->output); + _cairo_output_stream_printf (surface->output, + "xref\n" + "%d %d\n", + 0, num_objects + 1); + + _cairo_output_stream_printf (surface->output, + "0000000000 65535 f \n"); + for (i = 0; i < num_objects; i++) { + object = _cairo_array_index (&surface->objects, i); + _cairo_output_stream_printf (surface->output, + "%010lld 00000 n \n", object->u.offset); + } + + return offset; +} + +static void +_cairo_write_xref_stream_entry (cairo_output_stream_t *stream, + int id, + int type, + int field2_size, + long long field2, + int field3, + cairo_bool_t write_as_comments) +{ + char buf[20]; + int i; + + if (write_as_comments) { + _cairo_output_stream_printf (stream, "%% %5d %2d %10lld %d\n", id, type, field2, field3); + } else { + /* Each field is big endian */ + buf[0] = type; /* field 1 */ + for (i = field2_size - 1; i >= 0; i--) { + buf[i + 1] = field2 & 0xff; + field2 >>= 8; + } + buf[field2_size + 1] = field3 >> 8; + buf[field2_size + 2] = field3 & 0xff; + _cairo_output_stream_write (stream, buf, field2_size + 3); + } +} + +static void +_cairo_write_xref_stream_entries (cairo_pdf_surface_t *surface, + cairo_output_stream_t *stream, + int field2_size, + cairo_bool_t write_as_comments) +{ + cairo_pdf_object_t *object; + int num_objects, i; + + /* PDF requires this to be first entry */ + _cairo_write_xref_stream_entry (stream, + 0, + PDF_OBJECT_FREE, + field2_size, + 0, /* next free object number */ + 0xffff, /* next generation number */ + write_as_comments); + + num_objects = _cairo_array_num_elements (&surface->objects); + for (i = 0; i < num_objects; i++) { + object = _cairo_array_index (&surface->objects, i); + if (object->type == PDF_OBJECT_UNCOMPRESSED) { + _cairo_write_xref_stream_entry (stream, + i + 1, + object->type, + field2_size, + object->u.offset, + 0, /* generation number */ + write_as_comments); + } else if (object->type == PDF_OBJECT_COMPRESSED) { + _cairo_write_xref_stream_entry (stream, + i + 1, + object->type, + field2_size, + object->u.compressed_obj.xref_stream.id, + object->u.compressed_obj.index, + write_as_comments); + } else { + _cairo_write_xref_stream_entry (stream, + i + 1, + PDF_OBJECT_FREE, + field2_size, + 0, + 0xffff, + write_as_comments); + } + } +} + +static cairo_int_status_t +_cairo_pdf_surface_write_xref_stream (cairo_pdf_surface_t *surface, + cairo_pdf_resource_t xref_res, + cairo_pdf_resource_t root_res, + cairo_pdf_resource_t info_res, + long long *xref_offset) +{ + cairo_output_stream_t *mem_stream; + cairo_output_stream_t *xref_stream; + long long offset; + int offset_bytes; + cairo_status_t status; + + *xref_offset = _cairo_output_stream_get_position (surface->output); + + /* Find the minimum number of bytes required to represent offsets in the generated file (up to this point). */ + offset_bytes = 0; + offset = *xref_offset; + while (offset > 0) { + offset >>= 8; + offset_bytes++; + } + + mem_stream = _cairo_memory_stream_create (); + xref_stream = _cairo_deflate_stream_create (mem_stream); + _cairo_write_xref_stream_entries (surface, xref_stream, offset_bytes, FALSE); + + status = _cairo_output_stream_destroy (xref_stream); + if (unlikely (status)) + return status; + + _cairo_pdf_surface_update_object (surface, xref_res); + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /XRef\n" + " /Length %d\n" + " /Filter /FlateDecode\n" + " /Size %d\n" + " /W [1 %d 2]\n" + " /Root %d 0 R\n" + " /Info %d 0 R\n" + ">>\n", + xref_res.id, + _cairo_memory_stream_length (mem_stream), + surface->next_available_resource.id, + offset_bytes, + root_res.id, + info_res.id); + + if (!surface->compress_streams) { + /* Adobe Reader requires xref streams to be flate encoded (PDF + * Reference 1.7, implementation note 20). This means + * compression must always be enabled on this stream. To + * facilitate debugging when compress_stream is disabled, emit + * a human readable format of the xref stream as PDF comments. + */ + _cairo_output_stream_printf (surface->output, + "%% id type offset/obj gen/index\n"); + _cairo_write_xref_stream_entries (surface, surface->output, offset_bytes, TRUE); + } + + _cairo_output_stream_printf (surface->output, + "stream\n"); + _cairo_memory_stream_copy (mem_stream, surface->output); + status = _cairo_output_stream_destroy (mem_stream); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "\n" + "endstream\n" + "endobj\n"); + + return _cairo_output_stream_get_status (surface->output); +} + +static cairo_int_status_t +_cairo_pdf_surface_write_mask_group (cairo_pdf_surface_t *surface, + cairo_pdf_smask_group_t *group) +{ + cairo_pdf_resource_t mask_group; + cairo_pdf_resource_t smask; + cairo_pdf_smask_group_t *smask_group; + cairo_pdf_resource_t pattern_res, gstate_res; + cairo_int_status_t status; + cairo_box_double_t bbox; + + /* Create mask group */ + _get_bbox_from_extents (&group->extents, &bbox); + status = _cairo_pdf_surface_open_group (surface, &bbox, NULL); + if (unlikely (status)) + return status; + + if (_can_paint_pattern (group->mask)) { + _cairo_output_stream_printf (surface->output, "q\n"); + status = _cairo_pdf_surface_paint_pattern (surface, + CAIRO_OPERATOR_OVER, + group->mask, + CAIRO_ANALYSIS_MASK_MASK, + &group->extents, + 1.0, /* alpha */ + FALSE); /* mask */ + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, "Q\n"); + } else { + pattern_res.id = 0; + gstate_res.id = 0; + status = _cairo_pdf_surface_add_pdf_pattern (surface, group->mask, + CAIRO_OPERATOR_OVER, + CAIRO_ANALYSIS_MASK_MASK, + NULL, + &pattern_res, &gstate_res); + if (unlikely (status)) + return status; + + if (gstate_res.id != 0) { + smask_group = _cairo_pdf_surface_create_smask_group (surface, &group->extents); + if (unlikely (smask_group == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + smask_group->width = group->width; + smask_group->height = group->height; + smask_group->operation = PDF_PAINT; + smask_group->source = cairo_pattern_reference (group->mask); + smask_group->source_res = pattern_res; + status = _cairo_pdf_surface_add_smask_group (surface, smask_group); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (smask_group); + return status; + } + + status = _cairo_pdf_surface_add_smask (surface, gstate_res); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_add_xobject (surface, smask_group->group_res); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "q /s%d gs /x%d Do Q\n", + gstate_res.id, + smask_group->group_res.id); + } else { + status = _cairo_pdf_surface_select_pattern (surface, group->mask, pattern_res, FALSE); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "%f %f %f %f re f\n", + bbox.p1.x, + bbox.p1.y, + bbox.p2.x - bbox.p1.x, + bbox.p2.y - bbox.p1.y); + + status = _cairo_pdf_surface_unselect_pattern (surface); + if (unlikely (status)) + return status; + } + } + + status = _cairo_pdf_surface_close_group (surface, &mask_group); + if (unlikely (status)) + return status; + + /* Create source group */ + status = _cairo_pdf_surface_open_group (surface, &bbox, &group->source_res); + if (unlikely (status)) + return status; + + if (_can_paint_pattern (group->source)) { + _cairo_output_stream_printf (surface->output, "q\n"); + status = _cairo_pdf_surface_paint_pattern (surface, + CAIRO_OPERATOR_OVER, + group->source, + CAIRO_ANALYSIS_MASK_MASK, + &group->extents, + 1.0, /* alpha */ + FALSE); /* mask */ + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, "Q\n"); + } else { + pattern_res.id = 0; + gstate_res.id = 0; + status = _cairo_pdf_surface_add_pdf_pattern (surface, group->source, + CAIRO_OPERATOR_OVER, + CAIRO_ANALYSIS_MASK_MASK, + NULL, + &pattern_res, &gstate_res); + if (unlikely (status)) + return status; + + if (gstate_res.id != 0) { + smask_group = _cairo_pdf_surface_create_smask_group (surface, &group->extents); + if (unlikely (smask_group == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + smask_group->operation = PDF_PAINT; + smask_group->source = cairo_pattern_reference (group->source); + smask_group->source_res = pattern_res; + status = _cairo_pdf_surface_add_smask_group (surface, smask_group); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (smask_group); + return status; + } + + status = _cairo_pdf_surface_add_smask (surface, gstate_res); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_add_xobject (surface, smask_group->group_res); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "q /s%d gs /x%d Do Q\n", + gstate_res.id, + smask_group->group_res.id); + } else { + status = _cairo_pdf_surface_select_pattern (surface, group->source, pattern_res, FALSE); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "%f %f %f %f re f\n", + bbox.p1.x, + bbox.p1.y, + bbox.p2.x - bbox.p1.x, + bbox.p2.y - bbox.p1.y); + + status = _cairo_pdf_surface_unselect_pattern (surface); + if (unlikely (status)) + return status; + } + } + + status = _cairo_pdf_surface_close_group (surface, NULL); + if (unlikely (status)) + return status; + + /* Create an smask based on the alpha component of mask_group */ + smask = _cairo_pdf_surface_new_object (surface); + if (smask.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /Mask\n" + " /S /Alpha\n" + " /G %d 0 R\n" + ">>\n" + "endobj\n", + smask.id, + mask_group.id); + + /* Create a GState that uses the smask */ + _cairo_pdf_surface_update_object (surface, group->group_res); + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Type /ExtGState\n" + " /SMask %d 0 R\n" + " /ca 1\n" + " /CA 1\n" + " /AIS false\n" + ">>\n" + "endobj\n", + group->group_res.id, + smask.id); + + return _cairo_output_stream_get_status (surface->output); +} + +static cairo_int_status_t +_cairo_pdf_surface_write_smask_group (cairo_pdf_surface_t *surface, + cairo_pdf_smask_group_t *group) +{ + double old_width, old_height; + cairo_bool_t old_in_xobject; + cairo_int_status_t status; + cairo_box_double_t bbox; + cairo_rectangle_int_t old_surface_extents; + + old_width = surface->width; + old_height = surface->height; + old_surface_extents = surface->surface_extents; + old_in_xobject = surface->in_xobject; + surface->in_xobject = TRUE; + _cairo_pdf_surface_set_size_internal (surface, + group->width, + group->height); + _cairo_pdf_operators_reset (&surface->pdf_operators); + /* _mask is a special case that requires two groups - source + * and mask as well as a smask and gstate dictionary */ + if (group->operation == PDF_MASK) { + status = _cairo_pdf_surface_write_mask_group (surface, group); + goto RESTORE_SIZE; + } + + _get_bbox_from_extents (&group->extents, &bbox); + status = _cairo_pdf_surface_open_group (surface, &bbox, &group->group_res); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_select_pattern (surface, + group->source, + group->source_res, + group->operation == PDF_STROKE); + if (unlikely (status)) + return status; + + switch (group->operation) { + case PDF_PAINT: + _cairo_output_stream_printf (surface->output, + "0 0 %f %f re f\n", + surface->width, surface->height); + break; + case PDF_MASK: + ASSERT_NOT_REACHED; + break; + case PDF_FILL: + status = _cairo_pdf_operators_fill (&surface->pdf_operators, + &group->path, + group->fill_rule); + break; + case PDF_STROKE: + status = _cairo_pdf_operators_stroke (&surface->pdf_operators, + &group->path, + &group->style, + &group->ctm, + &group->ctm_inverse); + break; + case PDF_SHOW_GLYPHS: + status = _cairo_pdf_operators_show_text_glyphs (&surface->pdf_operators, + group->utf8, group->utf8_len, + group->glyphs, group->num_glyphs, + group->clusters, group->num_clusters, + group->cluster_flags, + group->scaled_font); + break; + } + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_unselect_pattern (surface); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_close_group (surface, NULL); + +RESTORE_SIZE: + surface->in_xobject = old_in_xobject; + _cairo_pdf_surface_set_size_internal (surface, + old_width, + old_height); + surface->surface_extents = old_surface_extents; + _cairo_pdf_operators_reset (&surface->pdf_operators); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_write_patterns_and_smask_groups (cairo_pdf_surface_t *surface, + cairo_bool_t finish) +{ + cairo_pdf_pattern_t pattern; + cairo_pdf_smask_group_t *group; + cairo_pdf_source_surface_t src_surface; + unsigned int pattern_index, group_index, surface_index, doc_surface_index; + cairo_int_status_t status; + cairo_bool_t is_image; + + /* Writing out PDF_MASK groups will cause additional smask groups + * to be appended to surface->smask_groups. Additional patterns + * may also be appended to surface->patterns. + * + * Writing recording surface patterns will cause additional patterns + * and groups to be appended. + */ + pattern_index = 0; + group_index = 0; + surface_index = 0; + doc_surface_index = 0; + while ((pattern_index < _cairo_array_num_elements (&surface->page_patterns)) || + (group_index < _cairo_array_num_elements (&surface->smask_groups)) || + (surface_index < _cairo_array_num_elements (&surface->page_surfaces)) || + (finish && (doc_surface_index < _cairo_array_num_elements (&surface->doc_surfaces)))) + { + for (; group_index < _cairo_array_num_elements (&surface->smask_groups); group_index++) { + _cairo_array_copy_element (&surface->smask_groups, group_index, &group); + status = _cairo_pdf_surface_write_smask_group (surface, group); + if (unlikely (status)) + return status; + } + + for (; pattern_index < _cairo_array_num_elements (&surface->page_patterns); pattern_index++) { + _cairo_array_copy_element (&surface->page_patterns, pattern_index, &pattern); + status = _cairo_pdf_surface_emit_pattern (surface, &pattern); + if (unlikely (status)) + return status; + } + + for (; surface_index < _cairo_array_num_elements (&surface->page_surfaces); surface_index++) { + _cairo_array_copy_element (&surface->page_surfaces, surface_index, &src_surface); + status = _cairo_pdf_surface_emit_surface (surface, &src_surface, FALSE, &is_image); + if (unlikely (status)) + return status; + } + + if (finish) { + for (; doc_surface_index < _cairo_array_num_elements (&surface->doc_surfaces); doc_surface_index++) { + _cairo_array_copy_element (&surface->doc_surfaces, doc_surface_index, &src_surface); + status = _cairo_pdf_surface_emit_surface (surface, &src_surface, FALSE, &is_image); + if (unlikely (status)) + return status; + } + } + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_pdf_surface_write_page (cairo_pdf_surface_t *surface) +{ + cairo_pdf_resource_t knockout, res; + cairo_int_status_t status; + unsigned int i, len; + cairo_pdf_page_info_t *page_info; + + page_info = _cairo_array_last_element (&surface->pages); + + status = _cairo_pdf_surface_open_object_stream (surface); + if (unlikely (status)) + return status; + + status = _cairo_pdf_interchange_write_page_objects (surface); + if (unlikely (status)) + return status; + + _cairo_pdf_group_resources_clear (&surface->resources); + if (surface->has_fallback_images) { + cairo_rectangle_int_t extents; + cairo_box_double_t bbox; + + extents.x = 0; + extents.y = 0; + extents.width = ceil (surface->width); + extents.height = ceil (surface->height); + _get_bbox_from_extents (&extents, &bbox); + status = _cairo_pdf_surface_open_knockout_group (surface, &bbox); + if (unlikely (status)) + return status; + + len = _cairo_array_num_elements (&surface->knockout_group); + for (i = 0; i < len; i++) { + _cairo_array_copy_element (&surface->knockout_group, i, &res); + _cairo_output_stream_printf (surface->output, + "/x%d Do\n", + res.id); + status = _cairo_pdf_surface_add_xobject (surface, res); + if (unlikely (status)) + return status; + } + _cairo_output_stream_printf (surface->output, + "/x%d Do\n", + surface->content.id); + status = _cairo_pdf_surface_add_xobject (surface, surface->content); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_close_group (surface, &knockout); + if (unlikely (status)) + return status; + + _cairo_pdf_group_resources_clear (&surface->resources); + status = _cairo_pdf_surface_open_content_stream (surface, NULL, NULL, FALSE, FALSE, -1); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, + "/x%d Do\n", + knockout.id); + status = _cairo_pdf_surface_add_xobject (surface, knockout); + if (unlikely (status)) + return status; + + status = _cairo_pdf_surface_close_content_stream (surface, FALSE); + if (unlikely (status)) + return status; + } + + if (surface->thumbnail_image) { + cairo_pdf_source_surface_entry_t entry; + + memset (&entry, 0, sizeof (entry)); + page_info->thumbnail = _cairo_pdf_surface_new_object (surface); + entry.surface_res = page_info->thumbnail; + _cairo_pdf_surface_emit_image (surface, surface->thumbnail_image, &entry); + } + + page_info->content = surface->content; + page_info->resources = surface->content_resources; + page_info->struct_parents = surface->page_parent_tree; + + status = _cairo_pdf_surface_write_patterns_and_smask_groups (surface, FALSE); + if (unlikely (status)) + return status; + + return _cairo_pdf_surface_close_object_stream (surface); +} + +static cairo_int_status_t +_cairo_pdf_surface_analyze_surface_pattern_transparency (cairo_pdf_surface_t *surface, + cairo_surface_pattern_t *pattern) +{ + cairo_image_surface_t *image; + void *image_extra; + cairo_int_status_t status; + cairo_image_transparency_t transparency; + + status = _cairo_surface_acquire_source_image (pattern->surface, + &image, + &image_extra); + if (unlikely (status)) + return status; + + if (image->base.status) + return image->base.status; + + transparency = _cairo_image_analyze_transparency (image); + if (transparency == CAIRO_IMAGE_IS_OPAQUE) + status = CAIRO_STATUS_SUCCESS; + else + status = CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY; + + _cairo_surface_release_source_image (pattern->surface, image, image_extra); + + return status; +} + +static cairo_bool_t +_surface_pattern_supported (cairo_surface_pattern_t *pattern) +{ + cairo_extend_t extend; + + if (pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + return TRUE; + + if (pattern->surface->backend->acquire_source_image == NULL) + return FALSE; + + /* Does an ALPHA-only source surface even make sense? Maybe, but I + * don't think it's worth the extra code to support it. */ + +/* XXX: Need to write this function here... + if (pattern->surface->content == CAIRO_CONTENT_ALPHA) + return FALSE; +*/ + + extend = cairo_pattern_get_extend (&pattern->base); + switch (extend) { + case CAIRO_EXTEND_NONE: + case CAIRO_EXTEND_REPEAT: + case CAIRO_EXTEND_REFLECT: + /* There's no point returning FALSE for EXTEND_PAD, as the image + * surface does not currently implement it either */ + case CAIRO_EXTEND_PAD: + return TRUE; + } + + ASSERT_NOT_REACHED; + return FALSE; +} + +static cairo_bool_t +_pattern_supported (const cairo_pattern_t *pattern) +{ + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + case CAIRO_PATTERN_TYPE_MESH: + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + return TRUE; + + case CAIRO_PATTERN_TYPE_SURFACE: + return _surface_pattern_supported ((cairo_surface_pattern_t *) pattern); + + default: + ASSERT_NOT_REACHED; + return FALSE; + } +} + +static cairo_bool_t +_pdf_operator_supported (cairo_operator_t op) +{ + switch (op) { + case CAIRO_OPERATOR_OVER: + case CAIRO_OPERATOR_MULTIPLY: + case CAIRO_OPERATOR_SCREEN: + case CAIRO_OPERATOR_OVERLAY: + case CAIRO_OPERATOR_DARKEN: + case CAIRO_OPERATOR_LIGHTEN: + case CAIRO_OPERATOR_COLOR_DODGE: + case CAIRO_OPERATOR_COLOR_BURN: + case CAIRO_OPERATOR_HARD_LIGHT: + case CAIRO_OPERATOR_SOFT_LIGHT: + case CAIRO_OPERATOR_DIFFERENCE: + case CAIRO_OPERATOR_EXCLUSION: + case CAIRO_OPERATOR_HSL_HUE: + case CAIRO_OPERATOR_HSL_SATURATION: + case CAIRO_OPERATOR_HSL_COLOR: + case CAIRO_OPERATOR_HSL_LUMINOSITY: + return TRUE; + + default: + case CAIRO_OPERATOR_CLEAR: + case CAIRO_OPERATOR_SOURCE: + case CAIRO_OPERATOR_IN: + case CAIRO_OPERATOR_OUT: + case CAIRO_OPERATOR_ATOP: + case CAIRO_OPERATOR_DEST: + case CAIRO_OPERATOR_DEST_OVER: + case CAIRO_OPERATOR_DEST_IN: + case CAIRO_OPERATOR_DEST_OUT: + case CAIRO_OPERATOR_DEST_ATOP: + case CAIRO_OPERATOR_XOR: + case CAIRO_OPERATOR_ADD: + case CAIRO_OPERATOR_SATURATE: + return FALSE; + } +} + +static cairo_int_status_t +_cairo_pdf_surface_analyze_operation (cairo_pdf_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + if (surface->force_fallbacks && + surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + if (! _pattern_supported (pattern)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (_pdf_operator_supported (op)) { + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) pattern; + + if (surface_pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) { + if (pattern->extend == CAIRO_EXTEND_PAD) { + cairo_box_t box; + cairo_rectangle_int_t rect; + cairo_rectangle_int_t rec_extents; + + /* get the operation extents in pattern space */ + _cairo_box_from_rectangle (&box, extents); + _cairo_matrix_transform_bounding_box_fixed (&pattern->matrix, &box, NULL); + _cairo_box_round_to_rectangle (&box, &rect); + + /* Check if surface needs padding to fill extents */ + if (_cairo_surface_get_extents (surface_pattern->surface, &rec_extents)) { + if (_cairo_fixed_integer_ceil(box.p1.x) < rec_extents.x || + _cairo_fixed_integer_ceil(box.p1.y) < rec_extents.y || + _cairo_fixed_integer_floor(box.p2.x) > rec_extents.x + rec_extents.width || + _cairo_fixed_integer_floor(box.p2.y) > rec_extents.y + rec_extents.height) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + } + } + return CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN; + } + } + + return CAIRO_STATUS_SUCCESS; + } + + + /* The SOURCE operator is supported if the pattern is opaque or if + * there is nothing painted underneath. */ + if (op == CAIRO_OPERATOR_SOURCE) { + if (surface->type3_replay) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) pattern; + + if (surface_pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) { + if (_cairo_pattern_is_opaque (pattern, extents)) { + return CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN; + } else { + /* FIXME: The analysis surface does not yet have + * the capability to analyze a non opaque recording + * surface and mark it supported if there is + * nothing underneath. For now recording surfaces of + * type CONTENT_COLOR_ALPHA painted with + * OPERATOR_SOURCE will result in a fallback + * image. */ + + return CAIRO_INT_STATUS_UNSUPPORTED; + } + } else { + return _cairo_pdf_surface_analyze_surface_pattern_transparency (surface, + surface_pattern); + } + } + + if (_cairo_pattern_is_opaque (pattern, extents)) + return CAIRO_STATUS_SUCCESS; + else + return CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY; + } + + return CAIRO_INT_STATUS_UNSUPPORTED; +} + +static cairo_bool_t +_cairo_pdf_surface_operation_supported (cairo_pdf_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + return _cairo_pdf_surface_analyze_operation (surface, op, pattern, extents) != CAIRO_INT_STATUS_UNSUPPORTED; +} + +static cairo_int_status_t +_cairo_pdf_surface_start_fallback (cairo_pdf_surface_t *surface) +{ + cairo_box_double_t bbox; + cairo_int_status_t status; + + status = _cairo_pdf_surface_close_content_stream (surface, FALSE); + if (unlikely (status)) + return status; + + status = _cairo_array_append (&surface->knockout_group, &surface->content); + if (unlikely (status)) + return status; + + _cairo_pdf_group_resources_clear (&surface->resources); + bbox.p1.x = 0; + bbox.p1.y = 0; + bbox.p2.x = surface->width; + bbox.p2.y = surface->height; + status = _cairo_pdf_surface_open_content_stream (surface, &bbox, NULL, TRUE, TRUE, -1); + if (unlikely (status)) + return status; + + return _cairo_pdf_interchange_begin_page_content (surface); +} + +/* If source is an opaque image and mask is an image and both images + * have the same bounding box we can emit them as a image/smask pair. + */ +static cairo_int_status_t +_cairo_pdf_surface_emit_combined_smask (cairo_pdf_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_rectangle_int_t *extents) +{ + cairo_int_status_t status; + cairo_image_surface_t *image; + void *image_extra; + cairo_image_transparency_t transparency; + int src_width, src_height; + int mask_width, mask_height; + double src_x_offset, src_y_offset; + double mask_x_offset, mask_y_offset; + double src_x1, src_y1, src_x2, src_y2; + double mask_x1, mask_y1, mask_x2, mask_y2; + cairo_matrix_t p2u; + double src_radius, mask_radius, e; + cairo_bool_t need_smask; + cairo_pdf_source_surface_entry_t *pdf_source; + + /* Check that source and mask are images */ + + if (!((source->type == CAIRO_PATTERN_TYPE_SURFACE || source->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) && + (mask->type == CAIRO_PATTERN_TYPE_SURFACE || mask->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE))) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (source->type == CAIRO_PATTERN_TYPE_SURFACE && + ((cairo_surface_pattern_t *) source)->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + if (mask->type == CAIRO_PATTERN_TYPE_SURFACE && + ((cairo_surface_pattern_t *) mask)->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + if (source->extend != CAIRO_EXTEND_NONE || mask->extend != CAIRO_EXTEND_NONE) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Check that source is opaque and get image sizes */ + + status = _cairo_pdf_surface_acquire_source_image_from_pattern (surface, source, + &image, &image_extra); + if (unlikely (status)) + return status; + + if (image->base.status) + return image->base.status; + + src_width = image->width; + src_height = image->height; + if (source->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) { + cairo_surface_get_device_offset (&image->base, &src_x_offset, &src_y_offset); + } else { + src_x_offset = 0; + src_y_offset = 0; + } + + transparency = _cairo_image_analyze_transparency (image); + _cairo_pdf_surface_release_source_image_from_pattern (surface, source, image, image_extra); + + if (transparency != CAIRO_IMAGE_IS_OPAQUE) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_pdf_surface_acquire_source_image_from_pattern (surface, mask, + &image, &image_extra); + if (unlikely (status)) + return status; + + if (image->base.status) + return image->base.status; + + mask_width = image->width; + mask_height = image->height; + if (mask->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) { + cairo_surface_get_device_offset (&image->base, &mask_x_offset, &mask_y_offset); + } else { + mask_x_offset = 0; + mask_y_offset = 0; + } + + transparency = _cairo_image_analyze_transparency (image); + need_smask = transparency != CAIRO_IMAGE_IS_OPAQUE; + + _cairo_pdf_surface_release_source_image_from_pattern (surface, mask, image, image_extra); + + /* Check that both images have the same extents with a tolerance + * of half the smallest source pixel. */ + + p2u = source->matrix; + status = cairo_matrix_invert (&p2u); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_INT_STATUS_SUCCESS); + src_x1 = 0; + src_y1 = 0; + src_x2 = src_width; + src_y2 = src_height; + cairo_matrix_transform_point (&p2u, &src_x1, &src_y1); + cairo_matrix_transform_point (&p2u, &src_x2, &src_y2); + src_radius = _cairo_matrix_transformed_circle_major_axis (&p2u, 0.5); + + p2u = mask->matrix; + status = cairo_matrix_invert (&p2u); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_INT_STATUS_SUCCESS); + mask_x1 = 0; + mask_y1 = 0; + mask_x2 = mask_width; + mask_y2 = mask_height; + cairo_matrix_transform_point (&p2u, &mask_x1, &mask_y1); + cairo_matrix_transform_point (&p2u, &mask_x2, &mask_y2); + mask_radius = _cairo_matrix_transformed_circle_major_axis (&p2u, 0.5); + + if (src_radius < mask_radius) + e = src_radius; + else + e = mask_radius; + + if (fabs(src_x1 - mask_x1) > e || + fabs(src_x2 - mask_x2) > e || + fabs(src_y1 - mask_y1) > e || + fabs(src_y2 - mask_y2) > e) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Check both images have same device offset */ + if (fabs(src_x_offset - mask_x_offset) > e || + fabs(src_y_offset - mask_y_offset) > e) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (need_smask) { + status = _cairo_pdf_surface_add_source_surface (surface, + NULL, + mask, + -1, /* node_surface_index */ + op, + source->filter, + FALSE, /* stencil mask */ + TRUE, /* smask */ + FALSE, /* need_transp_group */ + extents, + NULL, /* smask_res */ + &pdf_source, + NULL, + NULL, + NULL); + if (unlikely (status)) + return status; + } + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, "q\n"); + status = _cairo_pdf_surface_paint_surface_pattern (surface, op, source, + CAIRO_ANALYSIS_SOURCE_NONE, + extents, + 1.0, /* alpha */ + need_smask ? &pdf_source->surface_res : NULL, + FALSE); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, "Q\n"); + + status = _cairo_output_stream_get_status (surface->output); + + + return status; +} + +/* A PDF stencil mask is an A1 mask used with the current color */ +static cairo_int_status_t +_cairo_pdf_surface_emit_stencil_mask (cairo_pdf_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_rectangle_int_t *extents) +{ + cairo_int_status_t status; + cairo_image_surface_t *image; + void *image_extra; + cairo_image_transparency_t transparency; + cairo_pdf_resource_t pattern_res = {0}; + + if (! (source->type == CAIRO_PATTERN_TYPE_SOLID && + (mask->type == CAIRO_PATTERN_TYPE_SURFACE || mask->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE))) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (mask->type == CAIRO_PATTERN_TYPE_SURFACE && + ((cairo_surface_pattern_t *) mask)->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + status = _cairo_pdf_surface_acquire_source_image_from_pattern (surface, mask, + &image, &image_extra); + if (unlikely (status)) + return status; + + if (image->base.status) + return image->base.status; + + transparency = _cairo_image_analyze_transparency (image); + if (transparency != CAIRO_IMAGE_IS_OPAQUE && + transparency != CAIRO_IMAGE_HAS_BILEVEL_ALPHA) + { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto cleanup; + } + + status = _cairo_pdf_surface_select_pattern (surface, source, + pattern_res, FALSE); + if (unlikely (status)) + return status; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, "q\n"); + status = _cairo_pdf_surface_paint_surface_pattern (surface, op, mask, + CAIRO_ANALYSIS_SOURCE_NONE, + extents, 1.0, NULL, TRUE); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->output, "Q\n"); + + status = _cairo_output_stream_get_status (surface->output); + +cleanup: + _cairo_pdf_surface_release_source_image_from_pattern (surface, mask, image, image_extra); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_set_clip (cairo_pdf_surface_t *surface, + cairo_composite_rectangles_t *composite) +{ + cairo_clip_t *clip = composite->clip; + + if (_cairo_composite_rectangles_can_reduce_clip (composite, clip)) + clip = NULL; + + if (clip == NULL) { + if (_cairo_composite_rectangles_can_reduce_clip (composite, + surface->clipper.clip)) + return CAIRO_STATUS_SUCCESS; + } + + return _cairo_surface_clipper_set_clip (&surface->clipper, clip); +} + +static cairo_int_status_t +_cairo_pdf_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_pdf_surface_t *surface = abstract_surface; + cairo_pdf_smask_group_t *group; + cairo_pdf_resource_t pattern_res, gstate_res; + cairo_composite_rectangles_t extents; + cairo_int_status_t status; + + status = _cairo_composite_rectangles_init_for_paint (&extents, + &surface->base, + op, source, clip); + if (unlikely (status)) + return status; + + status = _cairo_pdf_interchange_add_operation_extents (surface, &extents.bounded); + if (unlikely (status)) + return status; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + status = _cairo_pdf_surface_analyze_operation (surface, op, source, &extents.bounded); + goto cleanup; + } else if (surface->paginated_mode == CAIRO_PAGINATED_MODE_FALLBACK) { + status = _cairo_pdf_surface_start_fallback (surface); + if (unlikely (status)) + goto cleanup; + } + + assert (_cairo_pdf_surface_operation_supported (surface, op, source, &extents.bounded)); + + status = _cairo_pdf_surface_set_clip (surface, &extents); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_select_operator (surface, op); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + goto cleanup; + + if (_can_paint_pattern (source)) { + _cairo_output_stream_printf (surface->output, "q\n"); + status = _cairo_pdf_surface_paint_pattern (surface, + op, + source, + CAIRO_ANALYSIS_SOURCE_PAINT, + &extents.bounded, + 1.0, /* alpha */ + FALSE); /* mask */ + if (unlikely (status)) + goto cleanup; + + _cairo_output_stream_printf (surface->output, "Q\n"); + _cairo_composite_rectangles_fini (&extents); + return _cairo_output_stream_get_status (surface->output); + } + + pattern_res.id = 0; + gstate_res.id = 0; + status = _cairo_pdf_surface_add_pdf_pattern (surface, source, op, + CAIRO_ANALYSIS_SOURCE_PAINT, + &extents.bounded, + &pattern_res, &gstate_res); + if (unlikely (status)) + goto cleanup; + + if (gstate_res.id != 0) { + group = _cairo_pdf_surface_create_smask_group (surface, &extents.bounded); + if (unlikely (group == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto cleanup; + } + + group->operation = PDF_PAINT; + status = _cairo_pattern_create_copy (&group->source, source); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (group); + goto cleanup; + } + group->source_res = pattern_res; + status = _cairo_pdf_surface_add_smask_group (surface, group); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (group); + goto cleanup; + } + + status = _cairo_pdf_surface_add_smask (surface, gstate_res); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_add_xobject (surface, group->group_res); + if (unlikely (status)) + goto cleanup; + + _cairo_output_stream_printf (surface->output, + "q /s%d gs /x%d Do Q\n", + gstate_res.id, + group->group_res.id); + } else { + status = _cairo_pdf_surface_select_pattern (surface, source, + pattern_res, FALSE); + if (unlikely (status)) + goto cleanup; + + _cairo_output_stream_printf (surface->output, + "%d %d %d %d re f\n", + surface->surface_extents.x, + surface->surface_extents.y, + surface->surface_extents.width, + surface->surface_extents.height); + + status = _cairo_pdf_surface_unselect_pattern (surface); + if (unlikely (status)) + goto cleanup; + } + + _cairo_composite_rectangles_fini (&extents); + return _cairo_output_stream_get_status (surface->output); + +cleanup: + _cairo_composite_rectangles_fini (&extents); + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_pdf_surface_t *surface = abstract_surface; + cairo_pdf_smask_group_t *group; + cairo_composite_rectangles_t extents; + cairo_int_status_t status; + cairo_rectangle_int_t r; + cairo_box_t box; + double alpha; + + status = _cairo_composite_rectangles_init_for_mask (&extents, + &surface->base, + op, source, mask, clip); + if (unlikely (status)) + return status; + + status = _cairo_pdf_interchange_add_operation_extents (surface, &extents.bounded); + if (unlikely (status)) + return status; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + cairo_int_status_t source_status, mask_status; + + status = _cairo_pdf_surface_analyze_operation (surface, op, source, &extents.bounded); + if (_cairo_int_status_is_error (status)) + goto cleanup; + source_status = status; + + if (mask->has_component_alpha) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + } else { + status = _cairo_pdf_surface_analyze_operation (surface, op, mask, &extents.bounded); + if (_cairo_int_status_is_error (status)) + goto cleanup; + } + mask_status = status; + + _cairo_composite_rectangles_fini (&extents); + return _cairo_analysis_surface_merge_status (source_status, + mask_status); + } else if (surface->paginated_mode == CAIRO_PAGINATED_MODE_FALLBACK) { + status = _cairo_pdf_surface_start_fallback (surface); + if (unlikely (status)) + goto cleanup; + } + + assert (_cairo_pdf_surface_operation_supported (surface, op, source, &extents.bounded)); + assert (_cairo_pdf_surface_operation_supported (surface, op, mask, &extents.bounded)); + + /* get the accurate extents */ + status = _cairo_pattern_get_ink_extents (source, &r); + if (unlikely (status)) + goto cleanup; + + /* XXX slight impedance mismatch */ + _cairo_box_from_rectangle (&box, &r); + status = _cairo_composite_rectangles_intersect_source_extents (&extents, + &box); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pattern_get_ink_extents (mask, &r); + if (unlikely (status)) + goto cleanup; + + _cairo_box_from_rectangle (&box, &r); + status = _cairo_composite_rectangles_intersect_mask_extents (&extents, + &box); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_set_clip (surface, &extents); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_select_operator (surface, op); + if (unlikely (status)) + goto cleanup; + + /* Check if we can combine source and mask into a smask image */ + status = _cairo_pdf_surface_emit_combined_smask (surface, op, source, mask, &extents.bounded); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + goto cleanup; + + /* Check if we can use a stencil mask */ + status = _cairo_pdf_surface_emit_stencil_mask (surface, op, source, mask, &extents.bounded); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + goto cleanup; + + /* Check if we can set ca/CA instead of an smask. We could handle + * other source patterns as well but for now this is the easiest, + * and most common, case to handle. */ + if (_cairo_pattern_is_constant_alpha (mask, &extents.bounded, &alpha) && + _can_paint_pattern (source)) { + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + goto cleanup; + + _cairo_output_stream_printf (surface->output, "q\n"); + status = _cairo_pdf_surface_paint_pattern (surface, + op, + source, + CAIRO_ANALYSIS_SOURCE_MASK, + &extents.bounded, + alpha, + FALSE); /* mask */ + if (unlikely (status)) + goto cleanup; + + _cairo_output_stream_printf (surface->output, "Q\n"); + _cairo_composite_rectangles_fini (&extents); + return _cairo_output_stream_get_status (surface->output); + } + + group = _cairo_pdf_surface_create_smask_group (surface, &extents.bounded); + if (unlikely (group == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto cleanup; + } + + group->operation = PDF_MASK; + status = _cairo_pattern_create_copy (&group->source, source); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (group); + goto cleanup; + } + status = _cairo_pattern_create_copy (&group->mask, mask); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (group); + goto cleanup; + } + group->source_res = _cairo_pdf_surface_new_object (surface); + if (group->source_res.id == 0) { + _cairo_pdf_smask_group_destroy (group); + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto cleanup; + } + + status = _cairo_pdf_surface_add_smask_group (surface, group); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (group); + goto cleanup; + } + + status = _cairo_pdf_surface_add_smask (surface, group->group_res); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_add_xobject (surface, group->source_res); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + goto cleanup; + + _cairo_output_stream_printf (surface->output, + "q /s%d gs /x%d Do Q\n", + group->group_res.id, + group->source_res.id); + + _cairo_composite_rectangles_fini (&extents); + return _cairo_output_stream_get_status (surface->output); + +cleanup: + _cairo_composite_rectangles_fini (&extents); + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_pdf_surface_t *surface = abstract_surface; + cairo_pdf_smask_group_t *group; + cairo_pdf_resource_t pattern_res, gstate_res; + cairo_composite_rectangles_t extents; + cairo_int_status_t status; + + status = _cairo_composite_rectangles_init_for_stroke (&extents, + &surface->base, + op, source, + path, style, ctm, + clip); + if (unlikely (status)) + return status; + + /* use the more accurate extents */ + if (extents.is_bounded) { + cairo_rectangle_int_t mask; + cairo_box_t box; + + status = _cairo_path_fixed_stroke_extents (path, style, + ctm, ctm_inverse, + tolerance, + &mask); + if (unlikely (status)) + goto cleanup; + + _cairo_box_from_rectangle (&box, &mask); + status = _cairo_composite_rectangles_intersect_mask_extents (&extents, + &box); + if (unlikely (status)) + goto cleanup; + } + + status = _cairo_pdf_interchange_add_operation_extents (surface, &extents.bounded); + if (unlikely (status)) + goto cleanup; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + status = _cairo_pdf_surface_analyze_operation (surface, op, source, &extents.bounded); + goto cleanup; + } + + assert (_cairo_pdf_surface_operation_supported (surface, op, source, &extents.bounded)); + + status = _cairo_pdf_surface_set_clip (surface, &extents); + if (unlikely (status)) + goto cleanup; + + pattern_res.id = 0; + gstate_res.id = 0; + status = _cairo_pdf_surface_add_pdf_pattern (surface, source, op, + CAIRO_ANALYSIS_SOURCE_STROKE, + &extents.bounded, + &pattern_res, &gstate_res); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_select_operator (surface, op); + if (unlikely (status)) + goto cleanup; + + if (gstate_res.id != 0) { + group = _cairo_pdf_surface_create_smask_group (surface, &extents.bounded); + if (unlikely (group == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto cleanup; + } + + group->operation = PDF_STROKE; + status = _cairo_pattern_create_copy (&group->source, source); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (group); + goto cleanup; + } + group->source_res = pattern_res; + status = _cairo_path_fixed_init_copy (&group->path, path); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (group); + goto cleanup; + } + + group->style = *style; + group->ctm = *ctm; + group->ctm_inverse = *ctm_inverse; + status = _cairo_pdf_surface_add_smask_group (surface, group); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (group); + goto cleanup; + } + + status = _cairo_pdf_surface_add_smask (surface, gstate_res); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_add_xobject (surface, group->group_res); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + goto cleanup; + + _cairo_output_stream_printf (surface->output, + "q /s%d gs /x%d Do Q\n", + gstate_res.id, + group->group_res.id); + } else { + status = _cairo_pdf_surface_select_pattern (surface, source, pattern_res, TRUE); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_operators_stroke (&surface->pdf_operators, + path, + style, + ctm, + ctm_inverse); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_unselect_pattern (surface); + if (unlikely (status)) + goto cleanup; + } + + _cairo_composite_rectangles_fini (&extents); + return _cairo_output_stream_get_status (surface->output); + +cleanup: + _cairo_composite_rectangles_fini (&extents); + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t*path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_pdf_surface_t *surface = abstract_surface; + cairo_int_status_t status; + cairo_pdf_smask_group_t *group; + cairo_pdf_resource_t pattern_res, gstate_res; + cairo_composite_rectangles_t extents; + + status = _cairo_composite_rectangles_init_for_fill (&extents, + &surface->base, + op, source, path, + clip); + if (unlikely (status)) + return status; + + /* use the more accurate extents */ + if (extents.is_bounded) { + cairo_rectangle_int_t mask; + cairo_box_t box; + + _cairo_path_fixed_fill_extents (path, + fill_rule, + tolerance, + &mask); + + _cairo_box_from_rectangle (&box, &mask); + status = _cairo_composite_rectangles_intersect_mask_extents (&extents, + &box); + if (unlikely (status)) + goto cleanup; + } + + status = _cairo_pdf_interchange_add_operation_extents (surface, &extents.bounded); + if (unlikely (status)) + goto cleanup; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + status = _cairo_pdf_surface_analyze_operation (surface, op, source, &extents.bounded); + goto cleanup; + } else if (surface->paginated_mode == CAIRO_PAGINATED_MODE_FALLBACK) { + status = _cairo_pdf_surface_start_fallback (surface); + if (unlikely (status)) + goto cleanup; + } + + assert (_cairo_pdf_surface_operation_supported (surface, op, source, &extents.bounded)); + + status = _cairo_pdf_surface_set_clip (surface, &extents); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_select_operator (surface, op); + if (unlikely (status)) + goto cleanup; + + if (_can_paint_pattern (source)) { + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + goto cleanup; + + _cairo_output_stream_printf (surface->output, "q\n"); + status = _cairo_pdf_operators_clip (&surface->pdf_operators, + path, + fill_rule); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_paint_pattern (surface, + op, + source, + CAIRO_ANALYSIS_SOURCE_FILL, + &extents.bounded, + 1.0, /* alpha */ + FALSE); /* mask */ + if (unlikely (status)) + goto cleanup; + + _cairo_output_stream_printf (surface->output, "Q\n"); + status = _cairo_output_stream_get_status (surface->output); + goto cleanup; + } + + pattern_res.id = 0; + gstate_res.id = 0; + status = _cairo_pdf_surface_add_pdf_pattern (surface, source, op, + CAIRO_ANALYSIS_SOURCE_FILL, + &extents.bounded, + &pattern_res, &gstate_res); + if (unlikely (status)) + goto cleanup; + + if (gstate_res.id != 0) { + group = _cairo_pdf_surface_create_smask_group (surface, &extents.bounded); + if (unlikely (group == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto cleanup; + } + + group->operation = PDF_FILL; + status = _cairo_pattern_create_copy (&group->source, source); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (group); + goto cleanup; + } + group->source_res = pattern_res; + status = _cairo_path_fixed_init_copy (&group->path, path); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (group); + goto cleanup; + } + + group->fill_rule = fill_rule; + status = _cairo_pdf_surface_add_smask_group (surface, group); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (group); + goto cleanup; + } + + status = _cairo_pdf_surface_add_smask (surface, gstate_res); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_add_xobject (surface, group->group_res); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + goto cleanup; + + _cairo_output_stream_printf (surface->output, + "q /s%d gs /x%d Do Q\n", + gstate_res.id, + group->group_res.id); + } else { + status = _cairo_pdf_surface_select_pattern (surface, source, pattern_res, FALSE); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_operators_fill (&surface->pdf_operators, + path, + fill_rule); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_unselect_pattern (surface); + if (unlikely (status)) + goto cleanup; + } + + _cairo_composite_rectangles_fini (&extents); + return _cairo_output_stream_get_status (surface->output); + +cleanup: + _cairo_composite_rectangles_fini (&extents); + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_fill_stroke (void *abstract_surface, + cairo_operator_t fill_op, + const cairo_pattern_t *fill_source, + cairo_fill_rule_t fill_rule, + double fill_tolerance, + cairo_antialias_t fill_antialias, + const cairo_path_fixed_t*path, + cairo_operator_t stroke_op, + const cairo_pattern_t *stroke_source, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *stroke_ctm, + const cairo_matrix_t *stroke_ctm_inverse, + double stroke_tolerance, + cairo_antialias_t stroke_antialias, + const cairo_clip_t *clip) +{ + cairo_pdf_surface_t *surface = abstract_surface; + cairo_int_status_t status; + cairo_pdf_resource_t fill_pattern_res, stroke_pattern_res, gstate_res; + cairo_composite_rectangles_t extents; + + /* During analysis we return unsupported and let the _fill and + * _stroke functions that are on the fallback path do the analysis + * for us. During render we may still encounter unsupported + * combinations of fill/stroke patterns. However we can return + * unsupported anytime to let the _fill and _stroke functions take + * over. + */ + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* PDF rendering of fill-stroke is not the same as cairo when + * either the fill or stroke is not opaque. + */ + if ( !_cairo_pattern_is_opaque (fill_source, NULL) || + !_cairo_pattern_is_opaque (stroke_source, NULL)) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + if (fill_op != stroke_op) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Compute the operation extents using the stroke which will naturally + * be larger than the fill extents. + */ + status = _cairo_composite_rectangles_init_for_stroke (&extents, + &surface->base, + stroke_op, stroke_source, + path, stroke_style, stroke_ctm, + clip); + if (unlikely (status)) + return status; + + /* use the more accurate extents */ + if (extents.is_bounded) { + cairo_rectangle_int_t mask; + cairo_box_t box; + + status = _cairo_path_fixed_stroke_extents (path, stroke_style, + stroke_ctm, stroke_ctm_inverse, + stroke_tolerance, + &mask); + if (unlikely (status)) + goto cleanup; + + _cairo_box_from_rectangle (&box, &mask); + status = _cairo_composite_rectangles_intersect_mask_extents (&extents, + &box); + if (unlikely (status)) + goto cleanup; + } + + status = _cairo_pdf_surface_set_clip (surface, &extents); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_select_operator (surface, fill_op); + if (unlikely (status)) + goto cleanup; + + /* use the more accurate extents */ + if (extents.is_bounded) { + cairo_rectangle_int_t mask; + cairo_box_t box; + + _cairo_path_fixed_fill_extents (path, + fill_rule, + fill_tolerance, + &mask); + + _cairo_box_from_rectangle (&box, &mask); + status = _cairo_composite_rectangles_intersect_mask_extents (&extents, + &box); + if (unlikely (status)) + goto cleanup; + } + + status = _cairo_pdf_interchange_add_operation_extents (surface, &extents.bounded); + if (unlikely (status)) + goto cleanup; + + fill_pattern_res.id = 0; + gstate_res.id = 0; + status = _cairo_pdf_surface_add_pdf_pattern (surface, fill_source, + fill_op, + CAIRO_ANALYSIS_SOURCE_FILL, + &extents.bounded, + &fill_pattern_res, + &gstate_res); + if (unlikely (status)) + goto cleanup; + + assert (gstate_res.id == 0); + + stroke_pattern_res.id = 0; + gstate_res.id = 0; + status = _cairo_pdf_surface_add_pdf_pattern (surface, + stroke_source, + stroke_op, + CAIRO_ANALYSIS_SOURCE_STROKE, + &extents.bounded, + &stroke_pattern_res, + &gstate_res); + if (unlikely (status)) + goto cleanup; + + assert (gstate_res.id == 0); + + /* As PDF has separate graphics state for fill and stroke we can + * select both at the same time */ + status = _cairo_pdf_surface_select_pattern (surface, fill_source, + fill_pattern_res, FALSE); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_select_pattern (surface, stroke_source, + stroke_pattern_res, TRUE); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_operators_fill_stroke (&surface->pdf_operators, + path, + fill_rule, + stroke_style, + stroke_ctm, + stroke_ctm_inverse); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_unselect_pattern (surface); + if (unlikely (status)) + goto cleanup; + + _cairo_composite_rectangles_fini (&extents); + return _cairo_output_stream_get_status (surface->output); + +cleanup: + _cairo_composite_rectangles_fini (&extents); + return status; +} + +static cairo_bool_t +_cairo_pdf_surface_has_show_text_glyphs (void *abstract_surface) +{ + return TRUE; +} + +static cairo_int_status_t +_cairo_pdf_surface_show_text_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const char *utf8, + int utf8_len, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_pdf_surface_t *surface = abstract_surface; + cairo_pdf_smask_group_t *group; + cairo_pdf_resource_t pattern_res, gstate_res; + cairo_composite_rectangles_t extents; + cairo_bool_t overlap; + cairo_int_status_t status; + + status = _cairo_composite_rectangles_init_for_glyphs (&extents, + &surface->base, + op, source, + scaled_font, + glyphs, num_glyphs, + clip, + &overlap); + if (unlikely (status)) + return status; + + status = _cairo_pdf_interchange_add_content (surface); + if (unlikely (status)) + return status; + + status = _cairo_pdf_interchange_add_operation_extents (surface, &extents.bounded); + if (unlikely (status)) + return status; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + /* Enabling text in Type 3 fonts currently crashes cairo. Most + * PDF viewers don't seem to suport text in Type 3 so we let + * this go to image fallback. + */ + if (surface->type3_replay) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_pdf_surface_analyze_operation (surface, op, source, &extents.bounded); + goto cleanup; + } + + assert (_cairo_pdf_surface_operation_supported (surface, op, source, &extents.bounded)); + + status = _cairo_pdf_surface_set_clip (surface, &extents); + if (unlikely (status)) + goto cleanup; + + pattern_res.id = 0; + gstate_res.id = 0; + status = _cairo_pdf_surface_add_pdf_pattern (surface, source, op, + CAIRO_ANALYSIS_SOURCE_SHOW_GLYPHS, + &extents.bounded, + &pattern_res, &gstate_res); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_select_operator (surface, op); + if (unlikely (status)) + goto cleanup; + + if (gstate_res.id != 0) { + group = _cairo_pdf_surface_create_smask_group (surface, &extents.bounded); + if (unlikely (group == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto cleanup; + } + + group->operation = PDF_SHOW_GLYPHS; + status = _cairo_pattern_create_copy (&group->source, source); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (group); + goto cleanup; + } + group->source_res = pattern_res; + + if (utf8_len) { + group->utf8 = _cairo_malloc (utf8_len); + if (unlikely (group->utf8 == NULL)) { + _cairo_pdf_smask_group_destroy (group); + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto cleanup; + } + memcpy (group->utf8, utf8, utf8_len); + } + group->utf8_len = utf8_len; + + if (num_glyphs) { + group->glyphs = _cairo_malloc_ab (num_glyphs, sizeof (cairo_glyph_t)); + if (unlikely (group->glyphs == NULL)) { + _cairo_pdf_smask_group_destroy (group); + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto cleanup; + } + memcpy (group->glyphs, glyphs, sizeof (cairo_glyph_t) * num_glyphs); + } + group->num_glyphs = num_glyphs; + + if (num_clusters) { + group->clusters = _cairo_malloc_ab (num_clusters, sizeof (cairo_text_cluster_t)); + if (unlikely (group->clusters == NULL)) { + _cairo_pdf_smask_group_destroy (group); + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto cleanup; + } + memcpy (group->clusters, clusters, sizeof (cairo_text_cluster_t) * num_clusters); + } + group->num_clusters = num_clusters; + + group->scaled_font = cairo_scaled_font_reference (scaled_font); + status = _cairo_pdf_surface_add_smask_group (surface, group); + if (unlikely (status)) { + _cairo_pdf_smask_group_destroy (group); + goto cleanup; + } + + status = _cairo_pdf_surface_add_smask (surface, gstate_res); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_add_xobject (surface, group->group_res); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + goto cleanup; + + _cairo_output_stream_printf (surface->output, + "q /s%d gs /x%d Do Q\n", + gstate_res.id, + group->group_res.id); + } else { + status = _cairo_pdf_surface_select_pattern (surface, source, pattern_res, FALSE); + if (unlikely (status)) + goto cleanup; + + /* User-fonts can use strokes; reset the stroke pattern as well. */ + if (_cairo_font_face_is_user(scaled_font->font_face)) { + status = _cairo_pdf_surface_select_pattern (surface, source, pattern_res, TRUE); + if (unlikely (status)) + goto cleanup; + } + + /* Each call to show_glyphs() with a transclucent pattern must + * be in a separate text object otherwise overlapping text + * from separate calls to show_glyphs will not composite with + * each other. */ + if (! _cairo_pattern_is_opaque (source, &extents.bounded)) { + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + goto cleanup; + } + + status = _cairo_pdf_operators_show_text_glyphs (&surface->pdf_operators, + utf8, utf8_len, + glyphs, num_glyphs, + clusters, num_clusters, + cluster_flags, + scaled_font); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_surface_unselect_pattern (surface); + if (unlikely (status)) + goto cleanup; + } + + _cairo_composite_rectangles_fini (&extents); + return _cairo_output_stream_get_status (surface->output); + +cleanup: + _cairo_composite_rectangles_fini (&extents); + return status; +} + +static const char ** +_cairo_pdf_surface_get_supported_mime_types (void *abstract_surface) +{ + return _cairo_pdf_supported_mime_types; +} + +static cairo_int_status_t +_cairo_pdf_surface_tag (void *abstract_surface, + cairo_bool_t begin, + const char *tag_name, + const char *attributes) + +{ + cairo_pdf_surface_t *surface = abstract_surface; + cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS; + + if (begin) + status = _cairo_pdf_interchange_tag_begin (surface, tag_name, attributes); + else + status = _cairo_pdf_interchange_tag_end (surface, tag_name); + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_command_id (void *abstract_surface, + unsigned int recording_id, + unsigned int command_id) +{ + cairo_pdf_surface_t *surface = abstract_surface; + + return _cairo_pdf_interchange_command_id (surface, recording_id, command_id); +} + +/* The Type 3 font subset support will the embed the + * CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE image if vector operations + * are not supported. The only case we don't currently handle is if a + * foreground color is used. + */ +static cairo_bool_t +_cairo_pdf_surface_supports_color_glyph (void *abstract_surface, + cairo_scaled_font_t *scaled_font, + unsigned long glyph_index) +{ + cairo_pdf_surface_t *surface = abstract_surface; + cairo_pdf_color_glyph_t glyph_key; + cairo_pdf_color_glyph_t *glyph_entry; + cairo_scaled_glyph_t *scaled_glyph; + cairo_status_t status; + + glyph_key.scaled_font = scaled_font; + glyph_key.glyph_index = glyph_index; + + _cairo_pdf_color_glyph_init_key (&glyph_key); + glyph_entry = _cairo_hash_table_lookup (surface->color_glyphs, &glyph_key.base); + if (glyph_entry) + return glyph_entry->supported; + + glyph_entry = _cairo_calloc (sizeof (cairo_pdf_color_glyph_t)); + if (glyph_entry == NULL) { + status = _cairo_surface_set_error (&surface->base, + _cairo_error (CAIRO_STATUS_NO_MEMORY)); + return FALSE; + } + + glyph_entry->scaled_font = cairo_scaled_font_reference (scaled_font); + glyph_entry->glyph_index = glyph_index; + _cairo_pdf_color_glyph_init_key (glyph_entry); + + glyph_entry->supported = FALSE; + _cairo_scaled_font_freeze_cache (scaled_font); + status = _cairo_scaled_glyph_lookup (scaled_font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + if (unlikely (status)) + goto done; + + glyph_entry->supported = !(scaled_glyph->recording_uses_foreground_color || + scaled_glyph->recording_uses_foreground_marker); + + done: + _cairo_scaled_font_thaw_cache (scaled_font); + + status = _cairo_hash_table_insert (surface->color_glyphs, + &glyph_entry->base); + if (unlikely(status)) { + status = _cairo_surface_set_error (&surface->base, + _cairo_error (CAIRO_STATUS_NO_MEMORY)); + return FALSE; + } + + return glyph_entry->supported; +} + +static cairo_int_status_t +_cairo_pdf_surface_analyze_recording_surface(void *abstract_surface, + const cairo_surface_pattern_t *recording_surface_pattern, + unsigned int region_id, + cairo_analysis_source_t source_type, + cairo_bool_t begin) +{ + cairo_pdf_surface_t *surface = abstract_surface; + cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS; + + if (begin) { + status = _cairo_pdf_interchange_recording_source_surface_begin ( + surface, + recording_surface_pattern, + region_id, + source_type); + } else { + status = _cairo_pdf_interchange_recording_source_surface_end ( + surface, + recording_surface_pattern, + region_id, + source_type); + } + + return status; +} + +static cairo_int_status_t +_cairo_pdf_surface_set_paginated_mode (void *abstract_surface, + cairo_paginated_mode_t paginated_mode) +{ + cairo_pdf_surface_t *surface = abstract_surface; + cairo_int_status_t status; + + surface->paginated_mode = paginated_mode; + + status = _cairo_pdf_interchange_begin_page_content (surface); + if (unlikely (status)) + return status; + + if (paginated_mode == CAIRO_PAGINATED_MODE_RENDER) { + surface->surface_extents.x = 0; + surface->surface_extents.y = 0; + surface->surface_extents.width = ceil (surface->width); + surface->surface_extents.height = ceil (surface->height); + } + + return CAIRO_INT_STATUS_SUCCESS; +} + +static const cairo_surface_backend_t cairo_pdf_surface_backend = { + CAIRO_SURFACE_TYPE_PDF, + _cairo_pdf_surface_finish, + + _cairo_default_context_create, + + NULL, /* create similar: handled by wrapper */ + NULL, /* create similar image */ + NULL, /* map to image */ + NULL, /* unmap image */ + + _cairo_surface_default_source, + NULL, /* acquire_source_image */ + NULL, /* release_source_image */ + NULL, /* snapshot */ + + NULL, /* _cairo_pdf_surface_copy_page */ + _cairo_pdf_surface_show_page, + + _cairo_pdf_surface_get_extents, + _cairo_pdf_surface_get_font_options, + + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + + /* Here are the drawing functions */ + _cairo_pdf_surface_paint, + _cairo_pdf_surface_mask, + _cairo_pdf_surface_stroke, + _cairo_pdf_surface_fill, + _cairo_pdf_surface_fill_stroke, + NULL, /* show_glyphs */ + _cairo_pdf_surface_has_show_text_glyphs, + _cairo_pdf_surface_show_text_glyphs, + _cairo_pdf_surface_get_supported_mime_types, + _cairo_pdf_surface_tag, + _cairo_pdf_surface_supports_color_glyph, + _cairo_pdf_surface_analyze_recording_surface, + _cairo_pdf_surface_command_id, +}; + +static const cairo_paginated_surface_backend_t +cairo_pdf_surface_paginated_backend = { + _cairo_pdf_surface_start_page, + _cairo_pdf_surface_set_paginated_mode, + NULL, /* set_bounding_box */ + _cairo_pdf_surface_has_fallback_images, + _cairo_pdf_surface_supports_fine_grained_fallbacks, + _cairo_pdf_surface_requires_thumbnail_image, + _cairo_pdf_surface_set_thumbnail_image, +}; diff --git a/local/recipes/libs/cairo/source/src/cairo-pdf.h b/local/recipes/libs/cairo/source/src/cairo-pdf.h new file mode 100644 index 0000000000..7e8025be30 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-pdf.h @@ -0,0 +1,170 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_PDF_H +#define CAIRO_PDF_H + +#include "cairo.h" + +#if CAIRO_HAS_PDF_SURFACE + +CAIRO_BEGIN_DECLS + +/** + * cairo_pdf_version_t: + * @CAIRO_PDF_VERSION_1_4: The version 1.4 of the PDF specification. (Since 1.10) + * @CAIRO_PDF_VERSION_1_5: The version 1.5 of the PDF specification. (Since 1.10) + * @CAIRO_PDF_VERSION_1_6: The version 1.6 of the PDF specification. (Since 1.18) + * @CAIRO_PDF_VERSION_1_7: The version 1.7 of the PDF specification. (Since 1.18) + * + * #cairo_pdf_version_t is used to describe the version number of the PDF + * specification that a generated PDF file will conform to. + * + * Since: 1.10 + **/ +typedef enum _cairo_pdf_version { + CAIRO_PDF_VERSION_1_4, + CAIRO_PDF_VERSION_1_5, + CAIRO_PDF_VERSION_1_6, + CAIRO_PDF_VERSION_1_7 +} cairo_pdf_version_t; + +cairo_public cairo_surface_t * +cairo_pdf_surface_create (const char *filename, + double width_in_points, + double height_in_points); + +cairo_public cairo_surface_t * +cairo_pdf_surface_create_for_stream (cairo_write_func_t write_func, + void *closure, + double width_in_points, + double height_in_points); + +cairo_public void +cairo_pdf_surface_restrict_to_version (cairo_surface_t *surface, + cairo_pdf_version_t version); + +cairo_public void +cairo_pdf_get_versions (cairo_pdf_version_t const **versions, + int *num_versions); + +cairo_public const char * +cairo_pdf_version_to_string (cairo_pdf_version_t version); + +cairo_public void +cairo_pdf_surface_set_size (cairo_surface_t *surface, + double width_in_points, + double height_in_points); + +/** + * cairo_pdf_outline_flags_t: + * @CAIRO_PDF_OUTLINE_FLAG_OPEN: The outline item defaults to open in the PDF viewer (Since 1.16) + * @CAIRO_PDF_OUTLINE_FLAG_BOLD: The outline item is displayed by the viewer in bold text (Since 1.16) + * @CAIRO_PDF_OUTLINE_FLAG_ITALIC: The outline item is displayed by the viewer in italic text (Since 1.16) + * + * #cairo_pdf_outline_flags_t is used by the + * cairo_pdf_surface_add_outline() function specify the attributes of + * an outline item. These flags may be bitwise-or'd to produce any + * combination of flags. + * + * Since: 1.16 + **/ +typedef enum _cairo_pdf_outline_flags { + CAIRO_PDF_OUTLINE_FLAG_OPEN = 0x1, + CAIRO_PDF_OUTLINE_FLAG_BOLD = 0x2, + CAIRO_PDF_OUTLINE_FLAG_ITALIC = 0x4, +} cairo_pdf_outline_flags_t; + +#define CAIRO_PDF_OUTLINE_ROOT 0 + +cairo_public int +cairo_pdf_surface_add_outline (cairo_surface_t *surface, + int parent_id, + const char *utf8, + const char *link_attribs, + cairo_pdf_outline_flags_t flags); + +/** + * cairo_pdf_metadata_t: + * @CAIRO_PDF_METADATA_TITLE: The document title (Since 1.16) + * @CAIRO_PDF_METADATA_AUTHOR: The document author (Since 1.16) + * @CAIRO_PDF_METADATA_SUBJECT: The document subject (Since 1.16) + * @CAIRO_PDF_METADATA_KEYWORDS: The document keywords (Since 1.16) + * @CAIRO_PDF_METADATA_CREATOR: The document creator (Since 1.16) + * @CAIRO_PDF_METADATA_CREATE_DATE: The document creation date (Since 1.16) + * @CAIRO_PDF_METADATA_MOD_DATE: The document modification date (Since 1.16) + * + * #cairo_pdf_metadata_t is used by the + * cairo_pdf_surface_set_metadata() function specify the metadata to set. + * + * Since: 1.16 + **/ +typedef enum _cairo_pdf_metadata { + CAIRO_PDF_METADATA_TITLE, + CAIRO_PDF_METADATA_AUTHOR, + CAIRO_PDF_METADATA_SUBJECT, + CAIRO_PDF_METADATA_KEYWORDS, + CAIRO_PDF_METADATA_CREATOR, + CAIRO_PDF_METADATA_CREATE_DATE, + CAIRO_PDF_METADATA_MOD_DATE, +} cairo_pdf_metadata_t; + +cairo_public void +cairo_pdf_surface_set_metadata (cairo_surface_t *surface, + cairo_pdf_metadata_t metadata, + const char *utf8); + +cairo_public void +cairo_pdf_surface_set_custom_metadata (cairo_surface_t *surface, + const char *name, + const char *value); + +cairo_public void +cairo_pdf_surface_set_page_label (cairo_surface_t *surface, + const char *utf8); + +cairo_public void +cairo_pdf_surface_set_thumbnail_size (cairo_surface_t *surface, + int width, + int height); + +CAIRO_END_DECLS + +#else /* CAIRO_HAS_PDF_SURFACE */ +# error Cairo was not compiled with support for the pdf backend +#endif /* CAIRO_HAS_PDF_SURFACE */ + +#endif /* CAIRO_PDF_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-pen.c b/local/recipes/libs/cairo/source/src/cairo-pen.c new file mode 100644 index 0000000000..a4b84aae58 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-pen.c @@ -0,0 +1,480 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-error-private.h" +#include "cairo-slope-private.h" + +static void +_cairo_pen_compute_slopes (cairo_pen_t *pen); + +cairo_status_t +_cairo_pen_init (cairo_pen_t *pen, + double radius, + double tolerance, + const cairo_matrix_t *ctm) +{ + int i; + int reflect; + + if (CAIRO_INJECT_FAULT ()) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + VG (VALGRIND_MAKE_MEM_UNDEFINED (pen, sizeof (cairo_pen_t))); + + pen->radius = radius; + pen->tolerance = tolerance; + + reflect = _cairo_matrix_compute_determinant (ctm) < 0.; + + pen->num_vertices = _cairo_pen_vertices_needed (tolerance, + radius, + ctm); + + if (pen->num_vertices > ARRAY_LENGTH (pen->vertices_embedded)) { + pen->vertices = _cairo_malloc_ab (pen->num_vertices, + sizeof (cairo_pen_vertex_t)); + if (unlikely (pen->vertices == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } else { + pen->vertices = pen->vertices_embedded; + } + + /* + * Compute pen coordinates. To generate the right ellipse, compute points around + * a circle in user space and transform them to device space. To get a consistent + * orientation in device space, flip the pen if the transformation matrix + * is reflecting + */ + for (i=0; i < pen->num_vertices; i++) { + cairo_pen_vertex_t *v = &pen->vertices[i]; + double theta = 2 * M_PI * i / (double) pen->num_vertices, dx, dy; + if (reflect) + theta = -theta; + dx = radius * cos (theta); + dy = radius * sin (theta); + cairo_matrix_transform_distance (ctm, &dx, &dy); + v->point.x = _cairo_fixed_from_double (dx); + v->point.y = _cairo_fixed_from_double (dy); + } + + _cairo_pen_compute_slopes (pen); + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_pen_fini (cairo_pen_t *pen) +{ + if (pen->vertices != pen->vertices_embedded) + free (pen->vertices); + + + VG (VALGRIND_MAKE_MEM_UNDEFINED (pen, sizeof (cairo_pen_t))); +} + +cairo_status_t +_cairo_pen_init_copy (cairo_pen_t *pen, const cairo_pen_t *other) +{ + VG (VALGRIND_MAKE_MEM_UNDEFINED (pen, sizeof (cairo_pen_t))); + + *pen = *other; + + if (CAIRO_INJECT_FAULT ()) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + pen->vertices = pen->vertices_embedded; + if (pen->num_vertices) { + if (pen->num_vertices > ARRAY_LENGTH (pen->vertices_embedded)) { + pen->vertices = _cairo_malloc_ab (pen->num_vertices, + sizeof (cairo_pen_vertex_t)); + if (unlikely (pen->vertices == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + memcpy (pen->vertices, other->vertices, + pen->num_vertices * sizeof (cairo_pen_vertex_t)); + } + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_pen_add_points (cairo_pen_t *pen, cairo_point_t *point, int num_points) +{ + cairo_status_t status; + int num_vertices; + int i; + + if (CAIRO_INJECT_FAULT ()) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + num_vertices = pen->num_vertices + num_points; + if (num_vertices > ARRAY_LENGTH (pen->vertices_embedded) || + pen->vertices != pen->vertices_embedded) + { + cairo_pen_vertex_t *vertices; + + if (pen->vertices == pen->vertices_embedded) { + vertices = _cairo_malloc_ab (num_vertices, + sizeof (cairo_pen_vertex_t)); + if (unlikely (vertices == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memcpy (vertices, pen->vertices, + pen->num_vertices * sizeof (cairo_pen_vertex_t)); + } else { + vertices = _cairo_realloc_ab (pen->vertices, + num_vertices, + sizeof (cairo_pen_vertex_t)); + if (unlikely (vertices == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + pen->vertices = vertices; + } + + pen->num_vertices = num_vertices; + + /* initialize new vertices */ + for (i=0; i < num_points; i++) + pen->vertices[pen->num_vertices-num_points+i].point = point[i]; + + status = _cairo_hull_compute (pen->vertices, &pen->num_vertices); + if (unlikely (status)) + return status; + + _cairo_pen_compute_slopes (pen); + + return CAIRO_STATUS_SUCCESS; +} + +/* +The circular pen in user space is transformed into an ellipse in +device space. + +We construct the pen by computing points along the circumference +using equally spaced angles. + +We show that this approximation to the ellipse has maximum error at the +major axis of the ellipse. + +Set + + M = major axis length + m = minor axis length + +Align 'M' along the X axis and 'm' along the Y axis and draw +an ellipse parameterized by angle 't': + + x = M cos t y = m sin t + +Perturb t by ± d and compute two new points (x+,y+), (x-,y-). +The distance from the average of these two points to (x,y) represents +the maximum error in approximating the ellipse with a polygon formed +from vertices 2∆ radians apart. + + x+ = M cos (t+∆) y+ = m sin (t+∆) + x- = M cos (t-∆) y- = m sin (t-∆) + +Now compute the approximation error, E: + + Ex = (x - (x+ + x-) / 2) + Ex = (M cos(t) - (Mcos(t+∆) + Mcos(t-∆))/2) + = M (cos(t) - (cos(t)cos(∆) + sin(t)sin(∆) + + cos(t)cos(∆) - sin(t)sin(∆))/2) + = M(cos(t) - cos(t)cos(∆)) + = M cos(t) (1 - cos(∆)) + + Ey = y - (y+ - y-) / 2 + = m sin (t) - (m sin(t+∆) + m sin(t-∆)) / 2 + = m (sin(t) - (sin(t)cos(∆) + cos(t)sin(∆) + + sin(t)cos(∆) - cos(t)sin(∆))/2) + = m (sin(t) - sin(t)cos(∆)) + = m sin(t) (1 - cos(∆)) + + E² = Ex² + Ey² + = (M cos(t) (1 - cos (∆)))² + (m sin(t) (1-cos(∆)))² + = (1 - cos(∆))² (M² cos²(t) + m² sin²(t)) + = (1 - cos(∆))² ((m² + M² - m²) cos² (t) + m² sin²(t)) + = (1 - cos(∆))² (M² - m²) cos² (t) + (1 - cos(∆))² m² + +Find the extremum by differentiation wrt t and setting that to zero + +∂(E²)/∂(t) = (1-cos(∆))² (M² - m²) (-2 cos(t) sin(t)) + + 0 = 2 cos (t) sin (t) + 0 = sin (2t) + t = nÏ€ + +Which is to say that the maximum and minimum errors occur on the +axes of the ellipse at 0 and Ï€ radians: + + E²(0) = (1-cos(∆))² (M² - m²) + (1-cos(∆))² m² + = (1-cos(∆))² M² + E²(Ï€) = (1-cos(∆))² m² + +maximum error = M (1-cos(∆)) +minimum error = m (1-cos(∆)) + +We must make maximum error ≤ tolerance, so compute the ∆ needed: + + tolerance = M (1-cos(∆)) + tolerance / M = 1 - cos (∆) + cos(∆) = 1 - tolerance/M + ∆ = acos (1 - tolerance / M); + +Remembering that ∆ is half of our angle between vertices, +the number of vertices is then + + vertices = ceil(2Ï€/2∆). + = ceil(Ï€/∆). + +Note that this also equation works for M == m (a circle) as it +doesn't matter where on the circle the error is computed. +*/ + +int +_cairo_pen_vertices_needed (double tolerance, + double radius, + const cairo_matrix_t *matrix) +{ + /* + * the pen is a circle that gets transformed to an ellipse by matrix. + * compute major axis length for a pen with the specified radius. + * we don't need the minor axis length. + */ + double major_axis = _cairo_matrix_transformed_circle_major_axis (matrix, + radius); + int num_vertices; + + if (tolerance >= 4*major_axis) { /* XXX relaxed from 2*major for inkscape */ + num_vertices = 1; + } else if (tolerance >= major_axis) { + num_vertices = 4; + } else { + double divisor = acos (1 - tolerance / major_axis); + + if (divisor == 0.0) + return 4; + + num_vertices = ceil (2*M_PI / divisor); + + /* number of vertices must be even */ + if (num_vertices % 2) + num_vertices++; + + /* And we must always have at least 4 vertices. */ + if (num_vertices < 4) + num_vertices = 4; + } + + return num_vertices; +} + +static void +_cairo_pen_compute_slopes (cairo_pen_t *pen) +{ + int i, i_prev; + cairo_pen_vertex_t *prev, *v, *next; + + for (i=0, i_prev = pen->num_vertices - 1; + i < pen->num_vertices; + i_prev = i++) { + prev = &pen->vertices[i_prev]; + v = &pen->vertices[i]; + next = &pen->vertices[(i + 1) % pen->num_vertices]; + + _cairo_slope_init (&v->slope_cw, &prev->point, &v->point); + _cairo_slope_init (&v->slope_ccw, &v->point, &next->point); + } +} +/* + * Find active pen vertex for clockwise edge of stroke at the given slope. + * + * The strictness of the inequalities here is delicate. The issue is + * that the slope_ccw member of one pen vertex will be equivalent to + * the slope_cw member of the next pen vertex in a counterclockwise + * order. However, for this function, we care strongly about which + * vertex is returned. + * + * [I think the "care strongly" above has to do with ensuring that the + * pen's "extra points" from the spline's initial and final slopes are + * properly found when beginning the spline stroking.] + */ +int +_cairo_pen_find_active_cw_vertex_index (const cairo_pen_t *pen, + const cairo_slope_t *slope) +{ + int i; + + for (i=0; i < pen->num_vertices; i++) { + if ((_cairo_slope_compare (slope, &pen->vertices[i].slope_ccw) < 0) && + (_cairo_slope_compare (slope, &pen->vertices[i].slope_cw) >= 0)) + break; + } + + /* If the desired slope cannot be found between any of the pen + * vertices, then we must have a degenerate pen, (such as a pen + * that's been transformed to a line). In that case, we consider + * the first pen vertex as the appropriate clockwise vertex. + */ + if (i == pen->num_vertices) + i = 0; + + return i; +} + +/* Find active pen vertex for counterclockwise edge of stroke at the given slope. + * + * Note: See the comments for _cairo_pen_find_active_cw_vertex_index + * for some details about the strictness of the inequalities here. + */ +int +_cairo_pen_find_active_ccw_vertex_index (const cairo_pen_t *pen, + const cairo_slope_t *slope) +{ + cairo_slope_t slope_reverse; + int i; + + slope_reverse = *slope; + slope_reverse.dx = -slope_reverse.dx; + slope_reverse.dy = -slope_reverse.dy; + + for (i=pen->num_vertices-1; i >= 0; i--) { + if ((_cairo_slope_compare (&pen->vertices[i].slope_ccw, &slope_reverse) >= 0) && + (_cairo_slope_compare (&pen->vertices[i].slope_cw, &slope_reverse) < 0)) + break; + } + + /* If the desired slope cannot be found between any of the pen + * vertices, then we must have a degenerate pen, (such as a pen + * that's been transformed to a line). In that case, we consider + * the last pen vertex as the appropriate counterclockwise vertex. + */ + if (i < 0) + i = pen->num_vertices - 1; + + return i; +} + +void +_cairo_pen_find_active_cw_vertices (const cairo_pen_t *pen, + const cairo_slope_t *in, + const cairo_slope_t *out, + int *start, int *stop) +{ + + int lo = 0, hi = pen->num_vertices; + int i; + + i = (lo + hi) >> 1; + do { + if (_cairo_slope_compare (&pen->vertices[i].slope_cw, in) < 0) + lo = i; + else + hi = i; + i = (lo + hi) >> 1; + } while (hi - lo > 1); + if (_cairo_slope_compare (&pen->vertices[i].slope_cw, in) < 0) + if (++i == pen->num_vertices) + i = 0; + *start = i; + + if (_cairo_slope_compare (out, &pen->vertices[i].slope_ccw) >= 0) { + lo = i; + hi = i + pen->num_vertices; + i = (lo + hi) >> 1; + do { + int j = i; + if (j >= pen->num_vertices) + j -= pen->num_vertices; + if (_cairo_slope_compare (&pen->vertices[j].slope_cw, out) > 0) + hi = i; + else + lo = i; + i = (lo + hi) >> 1; + } while (hi - lo > 1); + if (i >= pen->num_vertices) + i -= pen->num_vertices; + } + *stop = i; +} + +void +_cairo_pen_find_active_ccw_vertices (const cairo_pen_t *pen, + const cairo_slope_t *in, + const cairo_slope_t *out, + int *start, int *stop) +{ + int lo = 0, hi = pen->num_vertices; + int i; + + i = (lo + hi) >> 1; + do { + if (_cairo_slope_compare (in, &pen->vertices[i].slope_ccw) < 0) + lo = i; + else + hi = i; + i = (lo + hi) >> 1; + } while (hi - lo > 1); + if (_cairo_slope_compare (in, &pen->vertices[i].slope_ccw) < 0) + if (++i == pen->num_vertices) + i = 0; + *start = i; + + if (_cairo_slope_compare (&pen->vertices[i].slope_cw, out) <= 0) { + lo = i; + hi = i + pen->num_vertices; + i = (lo + hi) >> 1; + do { + int j = i; + if (j >= pen->num_vertices) + j -= pen->num_vertices; + if (_cairo_slope_compare (out, &pen->vertices[j].slope_ccw) > 0) + hi = i; + else + lo = i; + i = (lo + hi) >> 1; + } while (hi - lo > 1); + if (i >= pen->num_vertices) + i -= pen->num_vertices; + } + *stop = i; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-pixman-private.h b/local/recipes/libs/cairo/source/src/cairo-pixman-private.h new file mode 100644 index 0000000000..d187b79f66 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-pixman-private.h @@ -0,0 +1,45 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright ©2013 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_PIXMAN_PRIVATE_H +#define CAIRO_PIXMAN_PRIVATE_H + +#include "cairo-pixman-private.h" /* keep make check happy */ + +#include + +#endif diff --git a/local/recipes/libs/cairo/source/src/cairo-png.c b/local/recipes/libs/cairo/source/src/cairo-png.c new file mode 100644 index 0000000000..287f705459 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-png.c @@ -0,0 +1,983 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2003 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Kristian Høgsberg + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-output-stream-private.h" + +#include +#include +#include + +/** + * SECTION:cairo-png + * @Title: PNG Support + * @Short_Description: Reading and writing PNG images + * @See_Also: #cairo_surface_t + * + * The PNG functions allow reading PNG images into image surfaces, and writing + * any surface to a PNG file. + * + * It is a toy API. It only offers very simple support for reading and + * writing PNG files, which is sufficient for testing and + * demonstration purposes. Applications which need more control over + * the generated PNG file should access the pixel data directly, using + * cairo_image_surface_get_data() or a backend-specific access + * function, and process it with another library, e.g. gdk-pixbuf or + * libpng. + **/ + +/** + * CAIRO_HAS_PNG_FUNCTIONS: + * + * Defined if the PNG functions are available. + * This macro can be used to conditionally compile code using the cairo + * PNG functions. + * + * Since: 1.0 + **/ + +struct png_read_closure_t { + cairo_read_func_t read_func; + void *closure; + cairo_output_stream_t *png_data; +}; + + +/* Unpremultiplies data and converts native endian ARGB => RGBA bytes */ +static void +unpremultiply_data (png_structp png, png_row_infop row_info, png_bytep data) +{ + unsigned int i; + + for (i = 0; i < row_info->rowbytes; i += 4) { + uint8_t *b = &data[i]; + uint32_t pixel; + uint8_t alpha; + + memcpy (&pixel, b, sizeof (uint32_t)); + alpha = (pixel & 0xff000000) >> 24; + if (alpha == 0) { + b[0] = b[1] = b[2] = b[3] = 0; + } else { + b[0] = (((pixel & 0xff0000) >> 16) * 255 + alpha / 2) / alpha; + b[1] = (((pixel & 0x00ff00) >> 8) * 255 + alpha / 2) / alpha; + b[2] = (((pixel & 0x0000ff) >> 0) * 255 + alpha / 2) / alpha; + b[3] = alpha; + } + } +} + +static uint16_t f_to_u16(float val) +{ + if (val < 0) + return 0; + else if (val > 1) + return 65535; + else + return (uint16_t)(val * 65535.f); +} + +static void +unpremultiply_float (float *f, uint16_t *d16, unsigned width) +{ + unsigned int i; + + for (i = 0; i < width; i++) { + float r, g, b, a; + + r = *f++; + g = *f++; + b = *f++; + a = *f++; + + if (a > 0) { + *d16++ = f_to_u16(r / a); + *d16++ = f_to_u16(g / a); + *d16++ = f_to_u16(b / a); + *d16++ = f_to_u16(a); + } else { + *d16++ = 0; + *d16++ = 0; + *d16++ = 0; + *d16++ = 0; + } + } +} + +static void +premultiply_float (float *f, const uint16_t *d16, unsigned int width) +{ + unsigned int i = width; + + /* Convert d16 in place back to float */ + while (i--) { + float a = d16[i * 4 + 3] / 65535.f; + + f[i * 4 + 3] = a; + f[i * 4 + 2] = (float)d16[i * 4 + 2] / 65535.f * a; + f[i * 4 + 1] = (float)d16[i * 4 + 1] / 65535.f * a; + f[i * 4] = (float)d16[i * 4] / 65535.f * a; + } +} + +static void convert_u16_to_float (float *f, const uint16_t *d16, unsigned int width) +{ + /* Convert d16 in place back to float */ + unsigned int i = width; + + while (i--) { + f[i * 3 + 2] = (float)d16[i * 4 + 2] / 65535.f; + f[i * 3 + 1] = (float)d16[i * 4 + 1] / 65535.f; + f[i * 3] = (float)d16[i * 4] / 65535.f; + } +} + +static void +convert_float_to_u16 (float *f, uint16_t *d16, unsigned int width) +{ + unsigned int i; + + for (i = 0; i < width; i++) { + *d16++ = f_to_u16(*f++); + *d16++ = f_to_u16(*f++); + *d16++ = f_to_u16(*f++); + *d16++ = 0; + } +} + +/* Converts native endian xRGB => RGBx bytes */ +static void +convert_data_to_bytes (png_structp png, png_row_infop row_info, png_bytep data) +{ + unsigned int i; + + for (i = 0; i < row_info->rowbytes; i += 4) { + uint8_t *b = &data[i]; + uint32_t pixel; + + memcpy (&pixel, b, sizeof (uint32_t)); + + b[0] = (pixel & 0xff0000) >> 16; + b[1] = (pixel & 0x00ff00) >> 8; + b[2] = (pixel & 0x0000ff) >> 0; + b[3] = 0; + } +} + +/* Use a couple of simple error callbacks that do not print anything to + * stderr and rely on the user to check for errors via the #cairo_status_t + * return. + */ +static void +png_simple_error_callback (png_structp png, + png_const_charp error_msg) +{ + cairo_status_t *error = png_get_error_ptr (png); + + /* default to the most likely error */ + if (*error == CAIRO_STATUS_SUCCESS) + *error = _cairo_error (CAIRO_STATUS_PNG_ERROR); + +#ifdef PNG_SETJMP_SUPPORTED + longjmp (png_jmpbuf (png), 1); +#endif + + /* if we get here, then we have to choice but to abort ... */ +} + +static void +png_simple_warning_callback (png_structp png, + png_const_charp error_msg) +{ + /* png does not expect to abort and will try to tidy up and continue + * loading the image after a warning. So we also want to return the + * (incorrect?) surface. + * + * We use our own warning callback to squelch any attempts by libpng + * to write to stderr as we may not be in control of that output. + */ +} + + +/* Starting with libpng-1.2.30, we must explicitly specify an output_flush_fn. + * Otherwise, we will segfault if we are writing to a stream. */ +static void +png_simple_output_flush_fn (png_structp png_ptr) +{ +} + +static cairo_status_t +write_png (cairo_surface_t *surface, + png_rw_ptr write_func, + void *closure) +{ + int i; + cairo_int_status_t status; + cairo_image_surface_t *image; + cairo_image_surface_t * volatile clone; + void *image_extra; + png_struct *png; + png_info *info; + png_byte **volatile rows = NULL; + png_color_16 white; + int png_color_type; + int bpc; + unsigned char *volatile u16_copy = NULL; + + status = _cairo_surface_acquire_source_image (surface, + &image, + &image_extra); + + if (status == CAIRO_INT_STATUS_UNSUPPORTED) + return _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + else if (unlikely (status)) + return status; + + /* PNG complains about "Image width or height is zero in IHDR" */ + if (image->width == 0 || image->height == 0) { + status = _cairo_error (CAIRO_STATUS_WRITE_ERROR); + goto BAIL1; + } + + /* Don't coerce to a lower resolution format */ + if (image->format == CAIRO_FORMAT_RGB96F || + image->format == CAIRO_FORMAT_RGBA128F) { + u16_copy = _cairo_malloc_ab (image->width * 8, image->height); + if (!u16_copy) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL1; + } + clone = (cairo_image_surface_t *)cairo_surface_reference (&image->base); + } else { + /* Handle the various fallback formats (e.g. low bit-depth XServers) + * by coercing them to a simpler format using pixman. + */ + clone = _cairo_image_surface_coerce (image); + status = clone->base.status; + } + if (unlikely (status)) + goto BAIL1; + + rows = _cairo_malloc_ab (clone->height, sizeof (png_byte*)); + if (unlikely (rows == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL2; + } + + if (!u16_copy) { + for (i = 0; i < clone->height; i++) + rows[i] = (png_byte *)clone->data + i * clone->stride; + } else { + for (i = 0; i < clone->height; i++) { + float *float_line = (float *)&clone->data[i * clone->stride]; + uint16_t *u16_line = (uint16_t *)&u16_copy[i * clone->width * 8]; + + if (image->format == CAIRO_FORMAT_RGBA128F) + unpremultiply_float (float_line, u16_line, clone->width); + else + convert_float_to_u16 (float_line, u16_line, clone->width); + + rows[i] = (png_byte *)u16_line; + } + } + + png = png_create_write_struct (PNG_LIBPNG_VER_STRING, &status, + png_simple_error_callback, + png_simple_warning_callback); + if (unlikely (png == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL3; + } + + info = png_create_info_struct (png); + if (unlikely (info == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL4; + } + +#ifdef PNG_SETJMP_SUPPORTED + if (setjmp (png_jmpbuf (png))) + goto BAIL4; +#endif + + png_set_write_fn (png, closure, write_func, png_simple_output_flush_fn); + + switch (clone->format) { + case CAIRO_FORMAT_ARGB32: + bpc = 8; + if (_cairo_image_analyze_transparency (clone) == CAIRO_IMAGE_IS_OPAQUE) + png_color_type = PNG_COLOR_TYPE_RGB; + else + png_color_type = PNG_COLOR_TYPE_RGB_ALPHA; + break; + case CAIRO_FORMAT_RGB30: + bpc = 10; + png_color_type = PNG_COLOR_TYPE_RGB; + break; + case CAIRO_FORMAT_RGB24: + bpc = 8; + png_color_type = PNG_COLOR_TYPE_RGB; + break; + case CAIRO_FORMAT_A8: + bpc = 8; + png_color_type = PNG_COLOR_TYPE_GRAY; + break; + case CAIRO_FORMAT_A1: + bpc = 1; + png_color_type = PNG_COLOR_TYPE_GRAY; +#ifndef WORDS_BIGENDIAN + png_set_packswap (png); +#endif + break; + case CAIRO_FORMAT_RGB96F: + bpc = 16; + png_color_type = PNG_COLOR_TYPE_RGB; + break; + case CAIRO_FORMAT_RGBA128F: + bpc = 16; + png_color_type = PNG_COLOR_TYPE_RGB_ALPHA; + break; + case CAIRO_FORMAT_INVALID: + case CAIRO_FORMAT_RGB16_565: + default: + status = _cairo_error (CAIRO_STATUS_INVALID_FORMAT); + goto BAIL4; + } + + png_set_IHDR (png, info, + clone->width, + clone->height, bpc, + png_color_type, + PNG_INTERLACE_NONE, + PNG_COMPRESSION_TYPE_DEFAULT, + PNG_FILTER_TYPE_DEFAULT); + + white.gray = (1 << bpc) - 1; + white.red = white.blue = white.green = white.gray; + png_set_bKGD (png, info, &white); + + if (0) { /* XXX extract meta-data from surface (i.e. creation date) */ + png_time pt; + + png_convert_from_time_t (&pt, time (NULL)); + png_set_tIME (png, info, &pt); + } + + /* We have to call png_write_info() before setting up the write + * transformation, since it stores data internally in 'png' + * that is needed for the write transformation functions to work. + */ + png_write_info (png, info); + +#ifndef WORDS_BIGENDIAN + /* libpng treats 16-bit data as big-endian by default. Swapping the + * byte-order on little endian ensures the native-endian data can be + * provided to png_write_image. This does not affect 8-bit data. + */ + png_set_swap (png); +#endif + + if (png_color_type == PNG_COLOR_TYPE_RGB_ALPHA) { + if (clone->format != CAIRO_FORMAT_RGBA128F) + png_set_write_user_transform_fn (png, unpremultiply_data); + } else if (png_color_type == PNG_COLOR_TYPE_RGB) { + if (clone->format != CAIRO_FORMAT_RGB96F) + png_set_write_user_transform_fn (png, convert_data_to_bytes); + png_set_filler (png, 0, PNG_FILLER_AFTER); + } + + png_write_image (png, rows); + png_write_end (png, info); + +BAIL4: + png_destroy_write_struct (&png, &info); +BAIL3: + free (rows); +BAIL2: + cairo_surface_destroy (&clone->base); + free (u16_copy); +BAIL1: + _cairo_surface_release_source_image (surface, image, image_extra); + + return status; +} + +static void +stdio_write_func (png_structp png, png_bytep data, png_size_t size) +{ + FILE *fp; + + fp = png_get_io_ptr (png); + while (size) { + size_t ret = fwrite (data, 1, size, fp); + size -= ret; + data += ret; + if (size && ferror (fp)) { + cairo_status_t *error = png_get_error_ptr (png); + if (*error == CAIRO_STATUS_SUCCESS) + *error = _cairo_error (CAIRO_STATUS_WRITE_ERROR); + png_error (png, NULL); + } + } +} + +/** + * cairo_surface_write_to_png: + * @surface: a #cairo_surface_t with pixel contents + * @filename: the name of a file to write to; on Windows this filename + * is encoded in UTF-8. + * + * Writes the contents of @surface to a new file @filename as a PNG + * image. + * + * Return value: %CAIRO_STATUS_SUCCESS if the PNG file was written + * successfully. Otherwise, %CAIRO_STATUS_NO_MEMORY if memory could not + * be allocated for the operation or + * %CAIRO_STATUS_SURFACE_TYPE_MISMATCH if the surface does not have + * pixel contents, or %CAIRO_STATUS_WRITE_ERROR if an I/O error occurs + * while attempting to write the file, or %CAIRO_STATUS_PNG_ERROR if libpng + * returned an error. + * + * Since: 1.0 + **/ +cairo_status_t +cairo_surface_write_to_png (cairo_surface_t *surface, + const char *filename) +{ + FILE *fp; + cairo_status_t status; + + if (surface->status) + return surface->status; + + if (surface->finished) + return _cairo_error (CAIRO_STATUS_SURFACE_FINISHED); + + status = _cairo_fopen (filename, "wb", &fp); + + if (status != CAIRO_STATUS_SUCCESS) + return _cairo_error (status); + + if (fp == NULL) { + switch (errno) { + case ENOMEM: + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + default: + return _cairo_error (CAIRO_STATUS_WRITE_ERROR); + } + } + + status = write_png (surface, stdio_write_func, fp); + + if (fclose (fp) && status == CAIRO_STATUS_SUCCESS) + status = _cairo_error (CAIRO_STATUS_WRITE_ERROR); + + return status; +} + +struct png_write_closure_t { + cairo_write_func_t write_func; + void *closure; +}; + +static void +stream_write_func (png_structp png, png_bytep data, png_size_t size) +{ + cairo_status_t status; + struct png_write_closure_t *png_closure; + + png_closure = png_get_io_ptr (png); + status = png_closure->write_func (png_closure->closure, data, size); + if (unlikely (status)) { + cairo_status_t *error = png_get_error_ptr (png); + if (*error == CAIRO_STATUS_SUCCESS) + *error = status; + png_error (png, NULL); + } +} + +/** + * cairo_surface_write_to_png_stream: + * @surface: a #cairo_surface_t with pixel contents + * @write_func: a #cairo_write_func_t + * @closure: closure data for the write function + * + * Writes the image surface to the write function. + * + * Return value: %CAIRO_STATUS_SUCCESS if the PNG file was written + * successfully. Otherwise, %CAIRO_STATUS_NO_MEMORY is returned if + * memory could not be allocated for the operation, + * %CAIRO_STATUS_SURFACE_TYPE_MISMATCH if the surface does not have + * pixel contents, or %CAIRO_STATUS_PNG_ERROR if libpng + * returned an error. + * + * Since: 1.0 + **/ +cairo_status_t +cairo_surface_write_to_png_stream (cairo_surface_t *surface, + cairo_write_func_t write_func, + void *closure) +{ + struct png_write_closure_t png_closure; + + if (surface->status) + return surface->status; + + if (surface->finished) + return _cairo_error (CAIRO_STATUS_SURFACE_FINISHED); + + png_closure.write_func = write_func; + png_closure.closure = closure; + + return write_png (surface, stream_write_func, &png_closure); +} + +static inline int +multiply_alpha (int alpha, int color) +{ + int temp = (alpha * color) + 0x80; + return ((temp + (temp >> 8)) >> 8); +} + +/* Premultiplies data and converts RGBA bytes => native endian */ +static void +premultiply_data (png_structp png, + png_row_infop row_info, + png_bytep data) +{ + unsigned int i; + + for (i = 0; i < row_info->rowbytes; i += 4) { + uint8_t *base = &data[i]; + uint8_t alpha = base[3]; + uint32_t p; + + if (alpha == 0) { + p = 0; + } else { + uint8_t red = base[0]; + uint8_t green = base[1]; + uint8_t blue = base[2]; + + if (alpha != 0xff) { + red = multiply_alpha (alpha, red); + green = multiply_alpha (alpha, green); + blue = multiply_alpha (alpha, blue); + } + p = ((uint32_t)alpha << 24) | (red << 16) | (green << 8) | (blue << 0); + } + memcpy (base, &p, sizeof (uint32_t)); + } +} + +/* Converts RGBx bytes to native endian xRGB */ +static void +convert_bytes_to_data (png_structp png, png_row_infop row_info, png_bytep data) +{ + unsigned int i; + + for (i = 0; i < row_info->rowbytes; i += 4) { + uint8_t *base = &data[i]; + uint8_t red = base[0]; + uint8_t green = base[1]; + uint8_t blue = base[2]; + uint32_t pixel; + + pixel = (0xffu << 24) | (red << 16) | (green << 8) | (blue << 0); + memcpy (base, &pixel, sizeof (uint32_t)); + } +} + +static cairo_status_t +stdio_read_func (void *closure, unsigned char *data, unsigned int size) +{ + FILE *file = closure; + + while (size) { + size_t ret; + + ret = fread (data, 1, size, file); + size -= ret; + data += ret; + + if (size && (feof (file) || ferror (file))) + return _cairo_error (CAIRO_STATUS_READ_ERROR); + } + + return CAIRO_STATUS_SUCCESS; +} + +static void +stream_read_func (png_structp png, png_bytep data, png_size_t size) +{ + cairo_status_t status; + struct png_read_closure_t *png_closure; + + png_closure = png_get_io_ptr (png); + status = png_closure->read_func (png_closure->closure, data, size); + if (unlikely (status)) { + cairo_status_t *error = png_get_error_ptr (png); + if (*error == CAIRO_STATUS_SUCCESS) + *error = status; + png_error (png, NULL); + } + + _cairo_output_stream_write (png_closure->png_data, data, size); +} + +static cairo_surface_t * +read_png (struct png_read_closure_t *png_closure) +{ + cairo_surface_t * volatile surface; + png_struct *png = NULL; + png_info *info; + png_byte * volatile data = NULL; + png_byte ** volatile row_pointers = NULL; + png_uint_32 png_width, png_height; + int depth, color_type, interlace, stride; + unsigned int i; + cairo_format_t format; + cairo_status_t status; + unsigned char *mime_data; + unsigned long mime_data_length; + + png_closure->png_data = _cairo_memory_stream_create (); + + /* XXX: Perhaps we'll want some other error handlers? */ + png = png_create_read_struct (PNG_LIBPNG_VER_STRING, + &status, + png_simple_error_callback, + png_simple_warning_callback); + if (unlikely (png == NULL)) { + surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + goto BAIL; + } + + info = png_create_info_struct (png); + if (unlikely (info == NULL)) { + surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + goto BAIL; + } + + png_set_read_fn (png, png_closure, stream_read_func); + + status = CAIRO_STATUS_SUCCESS; +#ifdef PNG_SETJMP_SUPPORTED + if (setjmp (png_jmpbuf (png))) { + surface = _cairo_surface_create_in_error (status); + goto BAIL; + } +#endif + + png_read_info (png, info); + +#ifndef WORDS_BIGENDIAN + /* libpng treats 16-bit data as big-endian by default. Swapping the + * byte-order on little endian ensures the native-endian data can be + * provided to png_read_image. This does not affect 8-bit data. + */ + png_set_swap (png); +#endif + + png_get_IHDR (png, info, + &png_width, &png_height, &depth, + &color_type, &interlace, NULL, NULL); + if (unlikely (status)) { /* catch any early warnings */ + surface = _cairo_surface_create_in_error (status); + goto BAIL; + } + + /* convert palette/gray image to rgb */ + if (color_type == PNG_COLOR_TYPE_PALETTE) + png_set_palette_to_rgb (png); + + /* expand gray bit depth if needed */ + if (color_type == PNG_COLOR_TYPE_GRAY) + png_set_expand_gray_1_2_4_to_8 (png); + + /* transform transparency to alpha */ + if (png_get_valid (png, info, PNG_INFO_tRNS)) + png_set_tRNS_to_alpha (png); + + if (depth < 8) + png_set_packing (png); + + /* convert grayscale to RGB */ + if (color_type == PNG_COLOR_TYPE_GRAY || + color_type == PNG_COLOR_TYPE_GRAY_ALPHA) + { + png_set_gray_to_rgb (png); + } + + if (interlace != PNG_INTERLACE_NONE) + png_set_interlace_handling (png); + + png_set_filler (png, 0xff, PNG_FILLER_AFTER); + + /* recheck header after setting EXPAND options */ + png_read_update_info (png, info); + png_get_IHDR (png, info, + &png_width, &png_height, &depth, + &color_type, &interlace, NULL, NULL); + if ((depth != 8 && depth != 16) || + ! (color_type == PNG_COLOR_TYPE_RGB || + color_type == PNG_COLOR_TYPE_RGB_ALPHA)) + { + surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_READ_ERROR)); + goto BAIL; + } + + switch (color_type) { + default: + ASSERT_NOT_REACHED; + /* fall-through just in case ;-) */ + + case PNG_COLOR_TYPE_RGB_ALPHA: + if (depth == 8) { + format = CAIRO_FORMAT_ARGB32; + png_set_read_user_transform_fn (png, premultiply_data); + } else { + format = CAIRO_FORMAT_RGBA128F; + } + break; + + case PNG_COLOR_TYPE_RGB: + if (depth == 8) { + format = CAIRO_FORMAT_RGB24; + png_set_read_user_transform_fn (png, convert_bytes_to_data); + } else { + format = CAIRO_FORMAT_RGB96F; + } + break; + } + + stride = cairo_format_stride_for_width (format, png_width); + if (stride < 0) { + surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_STRIDE)); + goto BAIL; + } + + data = _cairo_malloc_ab (png_height, stride); + if (unlikely (data == NULL)) { + surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + goto BAIL; + } + + row_pointers = _cairo_malloc_ab (png_height, sizeof (char *)); + if (unlikely (row_pointers == NULL)) { + surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + goto BAIL; + } + + for (i = 0; i < png_height; i++) + row_pointers[i] = &data[i * (ptrdiff_t)stride]; + + png_read_image (png, row_pointers); + png_read_end (png, info); + + if (unlikely (status)) { /* catch any late warnings - probably hit an error already */ + surface = _cairo_surface_create_in_error (status); + goto BAIL; + } + + if (format == CAIRO_FORMAT_RGBA128F) { + i = png_height; + + while (i--) { + float *float_line = (float *)row_pointers[i]; + uint16_t *u16_line = (uint16_t *)row_pointers[i]; + + premultiply_float (float_line, u16_line, png_width); + } + } else if (format == CAIRO_FORMAT_RGB96F) { + i = png_height; + + while (i--) { + float *float_line = (float *)row_pointers[i]; + uint16_t *u16_line = (uint16_t *)row_pointers[i]; + + convert_u16_to_float (float_line, u16_line, png_width); + } + } + + surface = cairo_image_surface_create_for_data (data, format, + png_width, png_height, + stride); + if (surface->status) + goto BAIL; + + _cairo_image_surface_assume_ownership_of_data ((cairo_image_surface_t*)surface); + data = NULL; + + _cairo_debug_check_image_surface_is_defined (surface); + + status = _cairo_memory_stream_destroy (png_closure->png_data, + &mime_data, + &mime_data_length); + png_closure->png_data = NULL; + if (unlikely (status)) { + cairo_surface_destroy (surface); + surface = _cairo_surface_create_in_error (status); + goto BAIL; + } + + status = cairo_surface_set_mime_data (surface, + CAIRO_MIME_TYPE_PNG, + mime_data, + mime_data_length, + free, + mime_data); + if (unlikely (status)) { + free (mime_data); + cairo_surface_destroy (surface); + surface = _cairo_surface_create_in_error (status); + goto BAIL; + } + + BAIL: + free (row_pointers); + free (data); + if (png != NULL) + png_destroy_read_struct (&png, &info, NULL); + if (png_closure->png_data != NULL) { + cairo_status_t status_ignored; + + status_ignored = _cairo_output_stream_destroy (png_closure->png_data); + } + + return surface; +} + +/** + * cairo_image_surface_create_from_png: + * @filename: name of PNG file to load. On Windows this filename + * is encoded in UTF-8. + * + * Creates a new image surface and initializes the contents to the + * given PNG file. + * + * Return value: a new #cairo_surface_t initialized with the contents + * of the PNG file, or a "nil" surface if any error occurred. A nil + * surface can be checked for with cairo_surface_status(surface) which + * may return one of the following values: + * + * %CAIRO_STATUS_NO_MEMORY + * %CAIRO_STATUS_FILE_NOT_FOUND + * %CAIRO_STATUS_READ_ERROR + * %CAIRO_STATUS_PNG_ERROR + * + * Alternatively, you can allow errors to propagate through the drawing + * operations and check the status on the context upon completion + * using cairo_status(). + * + * Since: 1.0 + **/ +cairo_surface_t * +cairo_image_surface_create_from_png (const char *filename) +{ + struct png_read_closure_t png_closure; + cairo_surface_t *surface; + cairo_status_t status; + + status = _cairo_fopen (filename, "rb", (FILE **) &png_closure.closure); + + if (status != CAIRO_STATUS_SUCCESS) + return _cairo_surface_create_in_error (status); + + if (png_closure.closure == NULL) { + switch (errno) { + case ENOMEM: + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + break; + case ENOENT: + status = _cairo_error (CAIRO_STATUS_FILE_NOT_FOUND); + break; + default: + status = _cairo_error (CAIRO_STATUS_READ_ERROR); + break; + } + return _cairo_surface_create_in_error (status); + } + + png_closure.read_func = stdio_read_func; + + surface = read_png (&png_closure); + + fclose (png_closure.closure); + + return surface; +} + +/** + * cairo_image_surface_create_from_png_stream: + * @read_func: function called to read the data of the file + * @closure: data to pass to @read_func. + * + * Creates a new image surface from PNG data read incrementally + * via the @read_func function. + * + * Return value: a new #cairo_surface_t initialized with the contents + * of the PNG file or a "nil" surface if the data read is not a valid PNG image + * or memory could not be allocated for the operation. A nil + * surface can be checked for with cairo_surface_status(surface) which + * may return one of the following values: + * + * %CAIRO_STATUS_NO_MEMORY + * %CAIRO_STATUS_READ_ERROR + * %CAIRO_STATUS_PNG_ERROR + * + * Alternatively, you can allow errors to propagate through the drawing + * operations and check the status on the context upon completion + * using cairo_status(). + * + * Since: 1.0 + **/ +cairo_surface_t * +cairo_image_surface_create_from_png_stream (cairo_read_func_t read_func, + void *closure) +{ + struct png_read_closure_t png_closure; + + png_closure.read_func = read_func; + png_closure.closure = closure; + + return read_png (&png_closure); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-polygon-intersect.c b/local/recipes/libs/cairo/source/src/cairo-polygon-intersect.c new file mode 100644 index 0000000000..001e55ee06 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-polygon-intersect.c @@ -0,0 +1,1472 @@ +/* + * Copyright © 2004 Carl Worth + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Carl Worth + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +/* Provide definitions for standalone compilation */ +#include "cairoint.h" + +#include "cairo-error-private.h" +#include "cairo-freelist-private.h" +#include "cairo-combsort-inline.h" + + +typedef struct _cairo_bo_intersect_ordinate { + int32_t ordinate; + enum { EXCESS = -1, EXACT = 0, DEFAULT = 1 } approx; +} cairo_bo_intersect_ordinate_t; + +typedef struct _cairo_bo_intersect_point { + cairo_bo_intersect_ordinate_t x; + cairo_bo_intersect_ordinate_t y; +} cairo_bo_intersect_point_t; + +typedef struct _cairo_bo_edge cairo_bo_edge_t; + +typedef struct _cairo_bo_deferred { + cairo_bo_edge_t *other; + int32_t top; +} cairo_bo_deferred_t; + +struct _cairo_bo_edge { + int a_or_b; + cairo_edge_t edge; + cairo_bo_edge_t *prev; + cairo_bo_edge_t *next; + cairo_bo_deferred_t deferred; +}; + +/* the parent is always given by index/2 */ +#define PQ_PARENT_INDEX(i) ((i) >> 1) +#define PQ_FIRST_ENTRY 1 + +/* left and right children are index * 2 and (index * 2) +1 respectively */ +#define PQ_LEFT_CHILD_INDEX(i) ((i) << 1) + +typedef enum { + CAIRO_BO_EVENT_TYPE_STOP = -1, + CAIRO_BO_EVENT_TYPE_INTERSECTION, + CAIRO_BO_EVENT_TYPE_START +} cairo_bo_event_type_t; + +typedef struct _cairo_bo_event { + cairo_bo_event_type_t type; + cairo_bo_intersect_point_t point; +} cairo_bo_event_t; + +typedef struct _cairo_bo_start_event { + cairo_bo_event_type_t type; + cairo_bo_intersect_point_t point; + cairo_bo_edge_t edge; +} cairo_bo_start_event_t; + +typedef struct _cairo_bo_queue_event { + cairo_bo_event_type_t type; + cairo_bo_intersect_point_t point; + cairo_bo_edge_t *e1; + cairo_bo_edge_t *e2; +} cairo_bo_queue_event_t; + +typedef struct _pqueue { + int size, max_size; + + cairo_bo_event_t **elements; + cairo_bo_event_t *elements_embedded[1024]; +} pqueue_t; + +typedef struct _cairo_bo_event_queue { + cairo_freepool_t pool; + pqueue_t pqueue; + cairo_bo_event_t **start_events; +} cairo_bo_event_queue_t; + +typedef struct _cairo_bo_sweep_line { + cairo_bo_edge_t *head; + int32_t current_y; + cairo_bo_edge_t *current_edge; +} cairo_bo_sweep_line_t; + +static cairo_fixed_t +_line_compute_intersection_x_for_y (const cairo_line_t *line, + cairo_fixed_t y) +{ + cairo_fixed_t x, dy; + + if (y == line->p1.y) + return line->p1.x; + if (y == line->p2.y) + return line->p2.x; + + x = line->p1.x; + dy = line->p2.y - line->p1.y; + if (dy != 0) { + x += _cairo_fixed_mul_div_floor (y - line->p1.y, + line->p2.x - line->p1.x, + dy); + } + + return x; +} + +static inline int +_cairo_bo_point32_compare (cairo_bo_intersect_point_t const *a, + cairo_bo_intersect_point_t const *b) +{ + int cmp; + + cmp = a->y.ordinate - b->y.ordinate; + if (cmp) + return cmp; + + cmp = a->y.approx - b->y.approx; + if (cmp) + return cmp; + + return a->x.ordinate - b->x.ordinate; +} + +/* Compare the slope of a to the slope of b, returning 1, 0, -1 if the + * slope a is respectively greater than, equal to, or less than the + * slope of b. + * + * For each edge, consider the direction vector formed from: + * + * top -> bottom + * + * which is: + * + * (dx, dy) = (line.p2.x - line.p1.x, line.p2.y - line.p1.y) + * + * We then define the slope of each edge as dx/dy, (which is the + * inverse of the slope typically used in math instruction). We never + * compute a slope directly as the value approaches infinity, but we + * can derive a slope comparison without division as follows, (where + * the ? represents our compare operator). + * + * 1. slope(a) ? slope(b) + * 2. adx/ady ? bdx/bdy + * 3. (adx * bdy) ? (bdx * ady) + * + * Note that from step 2 to step 3 there is no change needed in the + * sign of the result since both ady and bdy are guaranteed to be + * greater than or equal to 0. + * + * When using this slope comparison to sort edges, some care is needed + * when interpreting the results. Since the slope compare operates on + * distance vectors from top to bottom it gives a correct left to + * right sort for edges that have a common top point, (such as two + * edges with start events at the same location). On the other hand, + * the sense of the result will be exactly reversed for two edges that + * have a common stop point. + */ +static inline int +_slope_compare (const cairo_bo_edge_t *a, + const cairo_bo_edge_t *b) +{ + /* XXX: We're assuming here that dx and dy will still fit in 32 + * bits. That's not true in general as there could be overflow. We + * should prevent that before the tessellation algorithm + * begins. + */ + int32_t adx = a->edge.line.p2.x - a->edge.line.p1.x; + int32_t bdx = b->edge.line.p2.x - b->edge.line.p1.x; + + /* Since the dy's are all positive by construction we can fast + * path several common cases. + */ + + /* First check for vertical lines. */ + if (adx == 0) + return -bdx; + if (bdx == 0) + return adx; + + /* Then where the two edges point in different directions wrt x. */ + if ((adx ^ bdx) < 0) + return adx; + + /* Finally we actually need to do the general comparison. */ + { + int32_t ady = a->edge.line.p2.y - a->edge.line.p1.y; + int32_t bdy = b->edge.line.p2.y - b->edge.line.p1.y; + cairo_int64_t adx_bdy = _cairo_int32x32_64_mul (adx, bdy); + cairo_int64_t bdx_ady = _cairo_int32x32_64_mul (bdx, ady); + + return _cairo_int64_cmp (adx_bdy, bdx_ady); + } +} + +/* + * We need to compare the x-coordinates of a pair of lines for a particular y, + * without loss of precision. + * + * The x-coordinate along an edge for a given y is: + * X = A_x + (Y - A_y) * A_dx / A_dy + * + * So the inequality we wish to test is: + * A_x + (Y - A_y) * A_dx / A_dy ∘ B_x + (Y - B_y) * B_dx / B_dy, + * where ∘ is our inequality operator. + * + * By construction, we know that A_dy and B_dy (and (Y - A_y), (Y - B_y)) are + * all positive, so we can rearrange it thus without causing a sign change: + * A_dy * B_dy * (A_x - B_x) ∘ (Y - B_y) * B_dx * A_dy + * - (Y - A_y) * A_dx * B_dy + * + * Given the assumption that all the deltas fit within 32 bits, we can compute + * this comparison directly using 128 bit arithmetic. For certain, but common, + * input we can reduce this down to a single 32 bit compare by inspecting the + * deltas. + * + * (And put the burden of the work on developing fast 128 bit ops, which are + * required throughout the tessellator.) + * + * See the similar discussion for _slope_compare(). + */ +static int +edges_compare_x_for_y_general (const cairo_bo_edge_t *a, + const cairo_bo_edge_t *b, + int32_t y) +{ + /* XXX: We're assuming here that dx and dy will still fit in 32 + * bits. That's not true in general as there could be overflow. We + * should prevent that before the tessellation algorithm + * begins. + */ + int32_t dx; + int32_t adx, ady; + int32_t bdx, bdy; + enum { + HAVE_NONE = 0x0, + HAVE_DX = 0x1, + HAVE_ADX = 0x2, + HAVE_DX_ADX = HAVE_DX | HAVE_ADX, + HAVE_BDX = 0x4, + HAVE_DX_BDX = HAVE_DX | HAVE_BDX, + HAVE_ADX_BDX = HAVE_ADX | HAVE_BDX, + HAVE_ALL = HAVE_DX | HAVE_ADX | HAVE_BDX + } have_dx_adx_bdx = HAVE_ALL; + + /* don't bother solving for abscissa if the edges' bounding boxes + * can be used to order them. */ + { + int32_t amin, amax; + int32_t bmin, bmax; + if (a->edge.line.p1.x < a->edge.line.p2.x) { + amin = a->edge.line.p1.x; + amax = a->edge.line.p2.x; + } else { + amin = a->edge.line.p2.x; + amax = a->edge.line.p1.x; + } + if (b->edge.line.p1.x < b->edge.line.p2.x) { + bmin = b->edge.line.p1.x; + bmax = b->edge.line.p2.x; + } else { + bmin = b->edge.line.p2.x; + bmax = b->edge.line.p1.x; + } + if (amax < bmin) return -1; + if (amin > bmax) return +1; + } + + ady = a->edge.line.p2.y - a->edge.line.p1.y; + adx = a->edge.line.p2.x - a->edge.line.p1.x; + if (adx == 0) + have_dx_adx_bdx &= ~HAVE_ADX; + + bdy = b->edge.line.p2.y - b->edge.line.p1.y; + bdx = b->edge.line.p2.x - b->edge.line.p1.x; + if (bdx == 0) + have_dx_adx_bdx &= ~HAVE_BDX; + + dx = a->edge.line.p1.x - b->edge.line.p1.x; + if (dx == 0) + have_dx_adx_bdx &= ~HAVE_DX; + +#define L _cairo_int64x32_128_mul (_cairo_int32x32_64_mul (ady, bdy), dx) +#define A _cairo_int64x32_128_mul (_cairo_int32x32_64_mul (adx, bdy), y - a->edge.line.p1.y) +#define B _cairo_int64x32_128_mul (_cairo_int32x32_64_mul (bdx, ady), y - b->edge.line.p1.y) + switch (have_dx_adx_bdx) { + default: + case HAVE_NONE: + return 0; + case HAVE_DX: + /* A_dy * B_dy * (A_x - B_x) ∘ 0 */ + return dx; /* ady * bdy is positive definite */ + case HAVE_ADX: + /* 0 ∘ - (Y - A_y) * A_dx * B_dy */ + return adx; /* bdy * (y - a->top.y) is positive definite */ + case HAVE_BDX: + /* 0 ∘ (Y - B_y) * B_dx * A_dy */ + return -bdx; /* ady * (y - b->top.y) is positive definite */ + case HAVE_ADX_BDX: + /* 0 ∘ (Y - B_y) * B_dx * A_dy - (Y - A_y) * A_dx * B_dy */ + if ((adx ^ bdx) < 0) { + return adx; + } else if (a->edge.line.p1.y == b->edge.line.p1.y) { /* common origin */ + cairo_int64_t adx_bdy, bdx_ady; + + /* ∴ A_dx * B_dy ∘ B_dx * A_dy */ + + adx_bdy = _cairo_int32x32_64_mul (adx, bdy); + bdx_ady = _cairo_int32x32_64_mul (bdx, ady); + + return _cairo_int64_cmp (adx_bdy, bdx_ady); + } else + return _cairo_int128_cmp (A, B); + case HAVE_DX_ADX: + /* A_dy * (A_x - B_x) ∘ - (Y - A_y) * A_dx */ + if ((-adx ^ dx) < 0) { + return dx; + } else { + cairo_int64_t ady_dx, dy_adx; + + ady_dx = _cairo_int32x32_64_mul (ady, dx); + dy_adx = _cairo_int32x32_64_mul (a->edge.line.p1.y - y, adx); + + return _cairo_int64_cmp (ady_dx, dy_adx); + } + case HAVE_DX_BDX: + /* B_dy * (A_x - B_x) ∘ (Y - B_y) * B_dx */ + if ((bdx ^ dx) < 0) { + return dx; + } else { + cairo_int64_t bdy_dx, dy_bdx; + + bdy_dx = _cairo_int32x32_64_mul (bdy, dx); + dy_bdx = _cairo_int32x32_64_mul (y - b->edge.line.p1.y, bdx); + + return _cairo_int64_cmp (bdy_dx, dy_bdx); + } + case HAVE_ALL: + /* XXX try comparing (a->edge.line.p2.x - b->edge.line.p2.x) et al */ + return _cairo_int128_cmp (L, _cairo_int128_sub (B, A)); + } +#undef B +#undef A +#undef L +} + +/* + * We need to compare the x-coordinate of a line for a particular y wrt to a + * given x, without loss of precision. + * + * The x-coordinate along an edge for a given y is: + * X = A_x + (Y - A_y) * A_dx / A_dy + * + * So the inequality we wish to test is: + * A_x + (Y - A_y) * A_dx / A_dy ∘ X + * where ∘ is our inequality operator. + * + * By construction, we know that A_dy (and (Y - A_y)) are + * all positive, so we can rearrange it thus without causing a sign change: + * (Y - A_y) * A_dx ∘ (X - A_x) * A_dy + * + * Given the assumption that all the deltas fit within 32 bits, we can compute + * this comparison directly using 64 bit arithmetic. + * + * See the similar discussion for _slope_compare() and + * edges_compare_x_for_y_general(). + */ +static int +edge_compare_for_y_against_x (const cairo_bo_edge_t *a, + int32_t y, + int32_t x) +{ + int32_t adx, ady; + int32_t dx, dy; + cairo_int64_t L, R; + + if (x < a->edge.line.p1.x && x < a->edge.line.p2.x) + return 1; + if (x > a->edge.line.p1.x && x > a->edge.line.p2.x) + return -1; + + adx = a->edge.line.p2.x - a->edge.line.p1.x; + dx = x - a->edge.line.p1.x; + + if (adx == 0) + return -dx; + if (dx == 0 || (adx ^ dx) < 0) + return adx; + + dy = y - a->edge.line.p1.y; + ady = a->edge.line.p2.y - a->edge.line.p1.y; + + L = _cairo_int32x32_64_mul (dy, adx); + R = _cairo_int32x32_64_mul (dx, ady); + + return _cairo_int64_cmp (L, R); +} + +static int +edges_compare_x_for_y (const cairo_bo_edge_t *a, + const cairo_bo_edge_t *b, + int32_t y) +{ + /* If the sweep-line is currently on an end-point of a line, + * then we know its precise x value (and considering that we often need to + * compare events at end-points, this happens frequently enough to warrant + * special casing). + */ + enum { + HAVE_NEITHER = 0x0, + HAVE_AX = 0x1, + HAVE_BX = 0x2, + HAVE_BOTH = HAVE_AX | HAVE_BX + } have_ax_bx = HAVE_BOTH; + int32_t ax = 0, bx = 0; + + if (y == a->edge.line.p1.y) + ax = a->edge.line.p1.x; + else if (y == a->edge.line.p2.y) + ax = a->edge.line.p2.x; + else + have_ax_bx &= ~HAVE_AX; + + if (y == b->edge.line.p1.y) + bx = b->edge.line.p1.x; + else if (y == b->edge.line.p2.y) + bx = b->edge.line.p2.x; + else + have_ax_bx &= ~HAVE_BX; + + switch (have_ax_bx) { + default: + case HAVE_NEITHER: + return edges_compare_x_for_y_general (a, b, y); + case HAVE_AX: + return -edge_compare_for_y_against_x (b, y, ax); + case HAVE_BX: + return edge_compare_for_y_against_x (a, y, bx); + case HAVE_BOTH: + return ax - bx; + } +} + +static inline int +_line_equal (const cairo_line_t *a, const cairo_line_t *b) +{ + return a->p1.x == b->p1.x && a->p1.y == b->p1.y && + a->p2.x == b->p2.x && a->p2.y == b->p2.y; +} + +static int +_cairo_bo_sweep_line_compare_edges (cairo_bo_sweep_line_t *sweep_line, + const cairo_bo_edge_t *a, + const cairo_bo_edge_t *b) +{ + int cmp; + + /* compare the edges if not identical */ + if (! _line_equal (&a->edge.line, &b->edge.line)) { + cmp = edges_compare_x_for_y (a, b, sweep_line->current_y); + if (cmp) + return cmp; + + /* The two edges intersect exactly at y, so fall back on slope + * comparison. We know that this compare_edges function will be + * called only when starting a new edge, (not when stopping an + * edge), so we don't have to worry about conditionally inverting + * the sense of _slope_compare. */ + cmp = _slope_compare (a, b); + if (cmp) + return cmp; + } + + /* We've got two collinear edges now. */ + return b->edge.bottom - a->edge.bottom; +} + +static inline cairo_int64_t +det32_64 (int32_t a, int32_t b, + int32_t c, int32_t d) +{ + /* det = a * d - b * c */ + return _cairo_int64_sub (_cairo_int32x32_64_mul (a, d), + _cairo_int32x32_64_mul (b, c)); +} + +static inline cairo_int128_t +det64x32_128 (cairo_int64_t a, int32_t b, + cairo_int64_t c, int32_t d) +{ + /* det = a * d - b * c */ + return _cairo_int128_sub (_cairo_int64x32_128_mul (a, d), + _cairo_int64x32_128_mul (c, b)); +} + +static inline cairo_bo_intersect_ordinate_t +round_to_nearest (cairo_quorem64_t d, + cairo_int64_t den) +{ + cairo_bo_intersect_ordinate_t ordinate; + int32_t quo = d.quo; + cairo_int64_t drem_2 = _cairo_int64_mul (d.rem, _cairo_int32_to_int64 (2)); + + /* assert (! _cairo_int64_negative (den));*/ + + if (_cairo_int64_lt (drem_2, _cairo_int64_negate (den))) { + quo -= 1; + drem_2 = _cairo_int64_negate (drem_2); + } else if (_cairo_int64_le (den, drem_2)) { + quo += 1; + drem_2 = _cairo_int64_negate (drem_2); + } + + ordinate.ordinate = quo; + ordinate.approx = _cairo_int64_is_zero (drem_2) ? EXACT : _cairo_int64_negative (drem_2) ? EXCESS : DEFAULT; + + return ordinate; +} + +/* Compute the intersection of two lines as defined by two edges. The + * result is provided as a coordinate pair of 128-bit integers. + * + * Returns %CAIRO_BO_STATUS_INTERSECTION if there is an intersection or + * %CAIRO_BO_STATUS_PARALLEL if the two lines are exactly parallel. + */ +static cairo_bool_t +intersect_lines (cairo_bo_edge_t *a, + cairo_bo_edge_t *b, + cairo_bo_intersect_point_t *intersection) +{ + cairo_int64_t a_det, b_det; + + /* XXX: We're assuming here that dx and dy will still fit in 32 + * bits. That's not true in general as there could be overflow. We + * should prevent that before the tessellation algorithm begins. + * What we're doing to mitigate this is to perform clamping in + * cairo_bo_tessellate_polygon(). + */ + int32_t dx1 = a->edge.line.p1.x - a->edge.line.p2.x; + int32_t dy1 = a->edge.line.p1.y - a->edge.line.p2.y; + + int32_t dx2 = b->edge.line.p1.x - b->edge.line.p2.x; + int32_t dy2 = b->edge.line.p1.y - b->edge.line.p2.y; + + cairo_int64_t den_det; + cairo_int64_t R; + cairo_quorem64_t qr; + + den_det = det32_64 (dx1, dy1, dx2, dy2); + + /* Q: Can we determine that the lines do not intersect (within range) + * much more cheaply than computing the intersection point i.e. by + * avoiding the division? + * + * X = ax + t * adx = bx + s * bdx; + * Y = ay + t * ady = by + s * bdy; + * ∴ t * (ady*bdx - bdy*adx) = bdx * (by - ay) + bdy * (ax - bx) + * => t * L = R + * + * Therefore we can reject any intersection (under the criteria for + * valid intersection events) if: + * L^R < 0 => t < 0, or + * L t > 1 + * + * (where top/bottom must at least extend to the line endpoints). + * + * A similar substitution can be performed for s, yielding: + * s * (ady*bdx - bdy*adx) = ady * (ax - bx) - adx * (ay - by) + */ + R = det32_64 (dx2, dy2, + b->edge.line.p1.x - a->edge.line.p1.x, + b->edge.line.p1.y - a->edge.line.p1.y); + if (_cairo_int64_le (den_det, R)) + return FALSE; + + R = det32_64 (dy1, dx1, + a->edge.line.p1.y - b->edge.line.p1.y, + a->edge.line.p1.x - b->edge.line.p1.x); + if (_cairo_int64_le (den_det, R)) + return FALSE; + + /* We now know that the two lines should intersect within range. */ + + a_det = det32_64 (a->edge.line.p1.x, a->edge.line.p1.y, + a->edge.line.p2.x, a->edge.line.p2.y); + b_det = det32_64 (b->edge.line.p1.x, b->edge.line.p1.y, + b->edge.line.p2.x, b->edge.line.p2.y); + + /* x = det (a_det, dx1, b_det, dx2) / den_det */ + qr = _cairo_int_96by64_32x64_divrem (det64x32_128 (a_det, dx1, + b_det, dx2), + den_det); + if (_cairo_int64_eq (qr.rem, den_det)) + return FALSE; + + intersection->x = round_to_nearest (qr, den_det); + + /* y = det (a_det, dy1, b_det, dy2) / den_det */ + qr = _cairo_int_96by64_32x64_divrem (det64x32_128 (a_det, dy1, + b_det, dy2), + den_det); + if (_cairo_int64_eq (qr.rem, den_det)) + return FALSE; + + intersection->y = round_to_nearest (qr, den_det); + + return TRUE; +} + +static int +_cairo_bo_intersect_ordinate_32_compare (cairo_bo_intersect_ordinate_t a, + int32_t b) +{ + /* First compare the quotient */ + if (a.ordinate > b) + return +1; + if (a.ordinate < b) + return -1; + + return a.approx; /* == EXCESS ? -1 : a.approx == EXACT ? 0 : 1;*/ +} + +/* Does the given edge contain the given point. The point must already + * be known to be contained within the line determined by the edge, + * (most likely the point results from an intersection of this edge + * with another). + * + * If we had exact arithmetic, then this function would simply be a + * matter of examining whether the y value of the point lies within + * the range of y values of the edge. But since intersection points + * are not exact due to being rounded to the nearest integer within + * the available precision, we must also examine the x value of the + * point. + * + * The definition of "contains" here is that the given intersection + * point will be seen by the sweep line after the start event for the + * given edge and before the stop event for the edge. See the comments + * in the implementation for more details. + */ +static cairo_bool_t +_cairo_bo_edge_contains_intersect_point (cairo_bo_edge_t *edge, + cairo_bo_intersect_point_t *point) +{ + return _cairo_bo_intersect_ordinate_32_compare (point->y, + edge->edge.bottom) < 0; +} + +/* Compute the intersection of two edges. The result is provided as a + * coordinate pair of 128-bit integers. + * + * Returns %CAIRO_BO_STATUS_INTERSECTION if there is an intersection + * that is within both edges, %CAIRO_BO_STATUS_NO_INTERSECTION if the + * intersection of the lines defined by the edges occurs outside of + * one or both edges, and %CAIRO_BO_STATUS_PARALLEL if the two edges + * are exactly parallel. + * + * Note that when determining if a candidate intersection is "inside" + * an edge, we consider both the infinitesimal shortening and the + * infinitesimal tilt rules described by John Hobby. Specifically, if + * the intersection is exactly the same as an edge point, it is + * effectively outside (no intersection is returned). Also, if the + * intersection point has the same + */ +static cairo_bool_t +_cairo_bo_edge_intersect (cairo_bo_edge_t *a, + cairo_bo_edge_t *b, + cairo_bo_intersect_point_t *intersection) +{ + if (! intersect_lines (a, b, intersection)) + return FALSE; + + if (! _cairo_bo_edge_contains_intersect_point (a, intersection)) + return FALSE; + + if (! _cairo_bo_edge_contains_intersect_point (b, intersection)) + return FALSE; + + return TRUE; +} + +static inline int +cairo_bo_event_compare (const cairo_bo_event_t *a, + const cairo_bo_event_t *b) +{ + int cmp; + + cmp = _cairo_bo_point32_compare (&a->point, &b->point); + if (cmp) + return cmp; + + cmp = a->type - b->type; + if (cmp) + return cmp; + + return a < b ? -1 : a == b ? 0 : 1; +} + +static inline void +_pqueue_init (pqueue_t *pq) +{ + pq->max_size = ARRAY_LENGTH (pq->elements_embedded); + pq->size = 0; + + pq->elements = pq->elements_embedded; +} + +static inline void +_pqueue_fini (pqueue_t *pq) +{ + if (pq->elements != pq->elements_embedded) + free (pq->elements); +} + +static cairo_status_t +_pqueue_grow (pqueue_t *pq) +{ + cairo_bo_event_t **new_elements; + pq->max_size *= 2; + + if (pq->elements == pq->elements_embedded) { + new_elements = _cairo_malloc_ab (pq->max_size, + sizeof (cairo_bo_event_t *)); + if (unlikely (new_elements == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memcpy (new_elements, pq->elements_embedded, + sizeof (pq->elements_embedded)); + } else { + new_elements = _cairo_realloc_ab (pq->elements, + pq->max_size, + sizeof (cairo_bo_event_t *)); + if (unlikely (new_elements == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + pq->elements = new_elements; + return CAIRO_STATUS_SUCCESS; +} + +static inline cairo_status_t +_pqueue_push (pqueue_t *pq, cairo_bo_event_t *event) +{ + cairo_bo_event_t **elements; + int i, parent; + + if (unlikely (pq->size + 1 == pq->max_size)) { + cairo_status_t status; + + status = _pqueue_grow (pq); + if (unlikely (status)) + return status; + } + + elements = pq->elements; + + for (i = ++pq->size; + i != PQ_FIRST_ENTRY && + cairo_bo_event_compare (event, + elements[parent = PQ_PARENT_INDEX (i)]) < 0; + i = parent) + { + elements[i] = elements[parent]; + } + + elements[i] = event; + + return CAIRO_STATUS_SUCCESS; +} + +static inline void +_pqueue_pop (pqueue_t *pq) +{ + cairo_bo_event_t **elements = pq->elements; + cairo_bo_event_t *tail; + int child, i; + + tail = elements[pq->size--]; + if (pq->size == 0) { + elements[PQ_FIRST_ENTRY] = NULL; + return; + } + + for (i = PQ_FIRST_ENTRY; + (child = PQ_LEFT_CHILD_INDEX (i)) <= pq->size; + i = child) + { + if (child != pq->size && + cairo_bo_event_compare (elements[child+1], + elements[child]) < 0) + { + child++; + } + + if (cairo_bo_event_compare (elements[child], tail) >= 0) + break; + + elements[i] = elements[child]; + } + elements[i] = tail; +} + +static inline cairo_status_t +_cairo_bo_event_queue_insert (cairo_bo_event_queue_t *queue, + cairo_bo_event_type_t type, + cairo_bo_edge_t *e1, + cairo_bo_edge_t *e2, + const cairo_bo_intersect_point_t *point) +{ + cairo_bo_queue_event_t *event; + + event = _cairo_freepool_alloc (&queue->pool); + if (unlikely (event == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + event->type = type; + event->e1 = e1; + event->e2 = e2; + event->point = *point; + + return _pqueue_push (&queue->pqueue, (cairo_bo_event_t *) event); +} + +static void +_cairo_bo_event_queue_delete (cairo_bo_event_queue_t *queue, + cairo_bo_event_t *event) +{ + _cairo_freepool_free (&queue->pool, event); +} + +static cairo_bo_event_t * +_cairo_bo_event_dequeue (cairo_bo_event_queue_t *event_queue) +{ + cairo_bo_event_t *event, *cmp; + + event = event_queue->pqueue.elements[PQ_FIRST_ENTRY]; + cmp = *event_queue->start_events; + if (event == NULL || + (cmp != NULL && cairo_bo_event_compare (cmp, event) < 0)) + { + event = cmp; + event_queue->start_events++; + } + else + { + _pqueue_pop (&event_queue->pqueue); + } + + return event; +} + +CAIRO_COMBSORT_DECLARE (_cairo_bo_event_queue_sort, + cairo_bo_event_t *, + cairo_bo_event_compare) + +static void +_cairo_bo_event_queue_init (cairo_bo_event_queue_t *event_queue, + cairo_bo_event_t **start_events, + int num_events) +{ + _cairo_bo_event_queue_sort (start_events, num_events); + start_events[num_events] = NULL; + + event_queue->start_events = start_events; + + _cairo_freepool_init (&event_queue->pool, + sizeof (cairo_bo_queue_event_t)); + _pqueue_init (&event_queue->pqueue); + event_queue->pqueue.elements[PQ_FIRST_ENTRY] = NULL; +} + +static cairo_status_t +event_queue_insert_stop (cairo_bo_event_queue_t *event_queue, + cairo_bo_edge_t *edge) +{ + cairo_bo_intersect_point_t point; + + point.y.ordinate = edge->edge.bottom; + point.y.approx = EXACT; + point.x.ordinate = _line_compute_intersection_x_for_y (&edge->edge.line, + point.y.ordinate); + point.x.approx = EXACT; + + return _cairo_bo_event_queue_insert (event_queue, + CAIRO_BO_EVENT_TYPE_STOP, + edge, NULL, + &point); +} + +static void +_cairo_bo_event_queue_fini (cairo_bo_event_queue_t *event_queue) +{ + _pqueue_fini (&event_queue->pqueue); + _cairo_freepool_fini (&event_queue->pool); +} + +static inline cairo_status_t +event_queue_insert_if_intersect_below_current_y (cairo_bo_event_queue_t *event_queue, + cairo_bo_edge_t *left, + cairo_bo_edge_t *right) +{ + cairo_bo_intersect_point_t intersection; + + if (_line_equal (&left->edge.line, &right->edge.line)) + return CAIRO_STATUS_SUCCESS; + + /* The names "left" and "right" here are correct descriptions of + * the order of the two edges within the active edge list. So if a + * slope comparison also puts left less than right, then we know + * that the intersection of these two segments has already + * occurred before the current sweep line position. */ + if (_slope_compare (left, right) <= 0) + return CAIRO_STATUS_SUCCESS; + + if (! _cairo_bo_edge_intersect (left, right, &intersection)) + return CAIRO_STATUS_SUCCESS; + + return _cairo_bo_event_queue_insert (event_queue, + CAIRO_BO_EVENT_TYPE_INTERSECTION, + left, right, + &intersection); +} + +static void +_cairo_bo_sweep_line_init (cairo_bo_sweep_line_t *sweep_line) +{ + sweep_line->head = NULL; + sweep_line->current_y = INT32_MIN; + sweep_line->current_edge = NULL; +} + +static cairo_status_t +sweep_line_insert (cairo_bo_sweep_line_t *sweep_line, + cairo_bo_edge_t *edge) +{ + if (sweep_line->current_edge != NULL) { + cairo_bo_edge_t *prev, *next; + int cmp; + + cmp = _cairo_bo_sweep_line_compare_edges (sweep_line, + sweep_line->current_edge, + edge); + if (cmp < 0) { + prev = sweep_line->current_edge; + next = prev->next; + while (next != NULL && + _cairo_bo_sweep_line_compare_edges (sweep_line, + next, edge) < 0) + { + prev = next, next = prev->next; + } + + prev->next = edge; + edge->prev = prev; + edge->next = next; + if (next != NULL) + next->prev = edge; + } else if (cmp > 0) { + next = sweep_line->current_edge; + prev = next->prev; + while (prev != NULL && + _cairo_bo_sweep_line_compare_edges (sweep_line, + prev, edge) > 0) + { + next = prev, prev = next->prev; + } + + next->prev = edge; + edge->next = next; + edge->prev = prev; + if (prev != NULL) + prev->next = edge; + else + sweep_line->head = edge; + } else { + prev = sweep_line->current_edge; + edge->prev = prev; + edge->next = prev->next; + if (prev->next != NULL) + prev->next->prev = edge; + prev->next = edge; + } + } else { + sweep_line->head = edge; + } + + sweep_line->current_edge = edge; + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_bo_sweep_line_delete (cairo_bo_sweep_line_t *sweep_line, + cairo_bo_edge_t *edge) +{ + if (edge->prev != NULL) + edge->prev->next = edge->next; + else + sweep_line->head = edge->next; + + if (edge->next != NULL) + edge->next->prev = edge->prev; + + if (sweep_line->current_edge == edge) + sweep_line->current_edge = edge->prev ? edge->prev : edge->next; +} + +static void +_cairo_bo_sweep_line_swap (cairo_bo_sweep_line_t *sweep_line, + cairo_bo_edge_t *left, + cairo_bo_edge_t *right) +{ + if (left->prev != NULL) + left->prev->next = right; + else + sweep_line->head = right; + + if (right->next != NULL) + right->next->prev = left; + + left->next = right->next; + right->next = left; + + right->prev = left->prev; + left->prev = right; +} + +static inline cairo_bool_t +edges_colinear (const cairo_bo_edge_t *a, const cairo_bo_edge_t *b) +{ + if (_line_equal (&a->edge.line, &b->edge.line)) + return TRUE; + + if (_slope_compare (a, b)) + return FALSE; + + /* The choice of y is not truly arbitrary since we must guarantee that it + * is greater than the start of either line. + */ + if (a->edge.line.p1.y == b->edge.line.p1.y) { + return a->edge.line.p1.x == b->edge.line.p1.x; + } else if (a->edge.line.p1.y < b->edge.line.p1.y) { + return edge_compare_for_y_against_x (b, + a->edge.line.p1.y, + a->edge.line.p1.x) == 0; + } else { + return edge_compare_for_y_against_x (a, + b->edge.line.p1.y, + b->edge.line.p1.x) == 0; + } +} + +static void +edges_end (cairo_bo_edge_t *left, + int32_t bot, + cairo_polygon_t *polygon) +{ + cairo_bo_deferred_t *l = &left->deferred; + cairo_bo_edge_t *right = l->other; + + assert(right->deferred.other == NULL); + if (likely (l->top < bot)) { + _cairo_polygon_add_line (polygon, &left->edge.line, l->top, bot, 1); + _cairo_polygon_add_line (polygon, &right->edge.line, l->top, bot, -1); + } + + l->other = NULL; +} + +static inline void +edges_start_or_continue (cairo_bo_edge_t *left, + cairo_bo_edge_t *right, + int top, + cairo_polygon_t *polygon) +{ + assert (right != NULL); + assert (right->deferred.other == NULL); + + if (left->deferred.other == right) + return; + + if (left->deferred.other != NULL) { + if (edges_colinear (left->deferred.other, right)) { + cairo_bo_edge_t *old = left->deferred.other; + + /* continuation on right, extend right to cover both */ + assert (old->deferred.other == NULL); + assert (old->edge.line.p2.y > old->edge.line.p1.y); + + if (old->edge.line.p1.y < right->edge.line.p1.y) + right->edge.line.p1 = old->edge.line.p1; + if (old->edge.line.p2.y > right->edge.line.p2.y) + right->edge.line.p2 = old->edge.line.p2; + left->deferred.other = right; + return; + } + + edges_end (left, top, polygon); + } + + if (! edges_colinear (left, right)) { + left->deferred.top = top; + left->deferred.other = right; + } +} + +#define is_zero(w) ((w)[0] == 0 || (w)[1] == 0) + +static inline void +active_edges (cairo_bo_edge_t *left, + int32_t top, + cairo_polygon_t *polygon) +{ + cairo_bo_edge_t *right; + int winding[2] = {0, 0}; + + /* Yes, this is naive. Consider this a placeholder. */ + + while (left != NULL) { + assert (is_zero (winding)); + + do { + winding[left->a_or_b] += left->edge.dir; + if (! is_zero (winding)) + break; + + if unlikely ((left->deferred.other)) + edges_end (left, top, polygon); + + left = left->next; + if (! left) + return; + } while (1); + + right = left->next; + do { + if unlikely ((right->deferred.other)) + edges_end (right, top, polygon); + + winding[right->a_or_b] += right->edge.dir; + if (is_zero (winding)) { + if (right->next == NULL || + ! edges_colinear (right, right->next)) + break; + } + + right = right->next; + } while (1); + + edges_start_or_continue (left, right, top, polygon); + + left = right->next; + } +} + +static cairo_status_t +intersection_sweep (cairo_bo_event_t **start_events, + int num_events, + cairo_polygon_t *polygon) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; /* silence compiler */ + cairo_bo_event_queue_t event_queue; + cairo_bo_sweep_line_t sweep_line; + cairo_bo_event_t *event; + cairo_bo_edge_t *left, *right; + cairo_bo_edge_t *e1, *e2; + + _cairo_bo_event_queue_init (&event_queue, start_events, num_events); + _cairo_bo_sweep_line_init (&sweep_line); + + while ((event = _cairo_bo_event_dequeue (&event_queue))) { + if (event->point.y.ordinate != sweep_line.current_y) { + active_edges (sweep_line.head, + sweep_line.current_y, + polygon); + sweep_line.current_y = event->point.y.ordinate; + } + + switch (event->type) { + case CAIRO_BO_EVENT_TYPE_START: + e1 = &((cairo_bo_start_event_t *) event)->edge; + + status = sweep_line_insert (&sweep_line, e1); + if (unlikely (status)) + goto unwind; + + status = event_queue_insert_stop (&event_queue, e1); + if (unlikely (status)) + goto unwind; + + left = e1->prev; + right = e1->next; + + if (left != NULL) { + status = event_queue_insert_if_intersect_below_current_y (&event_queue, left, e1); + if (unlikely (status)) + goto unwind; + } + + if (right != NULL) { + status = event_queue_insert_if_intersect_below_current_y (&event_queue, e1, right); + if (unlikely (status)) + goto unwind; + } + + break; + + case CAIRO_BO_EVENT_TYPE_STOP: + e1 = ((cairo_bo_queue_event_t *) event)->e1; + _cairo_bo_event_queue_delete (&event_queue, event); + + if (e1->deferred.other) + edges_end (e1, sweep_line.current_y, polygon); + + left = e1->prev; + right = e1->next; + + _cairo_bo_sweep_line_delete (&sweep_line, e1); + + if (left != NULL && right != NULL) { + status = event_queue_insert_if_intersect_below_current_y (&event_queue, left, right); + if (unlikely (status)) + goto unwind; + } + + break; + + case CAIRO_BO_EVENT_TYPE_INTERSECTION: + e1 = ((cairo_bo_queue_event_t *) event)->e1; + e2 = ((cairo_bo_queue_event_t *) event)->e2; + _cairo_bo_event_queue_delete (&event_queue, event); + + /* skip this intersection if its edges are not adjacent */ + if (e2 != e1->next) + break; + + if (e1->deferred.other) + edges_end (e1, sweep_line.current_y, polygon); + if (e2->deferred.other) + edges_end (e2, sweep_line.current_y, polygon); + + left = e1->prev; + right = e2->next; + + _cairo_bo_sweep_line_swap (&sweep_line, e1, e2); + + /* after the swap e2 is left of e1 */ + + if (left != NULL) { + status = event_queue_insert_if_intersect_below_current_y (&event_queue, left, e2); + if (unlikely (status)) + goto unwind; + } + + if (right != NULL) { + status = event_queue_insert_if_intersect_below_current_y (&event_queue, e1, right); + if (unlikely (status)) + goto unwind; + } + + break; + } + } + + unwind: + _cairo_bo_event_queue_fini (&event_queue); + + return status; +} + +cairo_status_t +_cairo_polygon_intersect (cairo_polygon_t *a, int winding_a, + cairo_polygon_t *b, int winding_b) +{ + cairo_status_t status; + cairo_bo_start_event_t stack_events[CAIRO_STACK_ARRAY_LENGTH (cairo_bo_start_event_t)]; + cairo_bo_start_event_t *events; + cairo_bo_event_t *stack_event_ptrs[ARRAY_LENGTH (stack_events) + 1]; + cairo_bo_event_t **event_ptrs; + int num_events; + int i, j; + + /* XXX lazy */ + if (winding_a != CAIRO_FILL_RULE_WINDING) { + status = _cairo_polygon_reduce (a, winding_a); + if (unlikely (status)) + return status; + } + + if (winding_b != CAIRO_FILL_RULE_WINDING) { + status = _cairo_polygon_reduce (b, winding_b); + if (unlikely (status)) + return status; + } + + if (unlikely (0 == a->num_edges)) + return CAIRO_STATUS_SUCCESS; + + if (unlikely (0 == b->num_edges)) { + a->num_edges = 0; + return CAIRO_STATUS_SUCCESS; + } + + events = stack_events; + event_ptrs = stack_event_ptrs; + num_events = a->num_edges + b->num_edges; + if (num_events > ARRAY_LENGTH (stack_events)) { + events = _cairo_malloc_ab_plus_c (num_events, + sizeof (cairo_bo_start_event_t) + + sizeof (cairo_bo_event_t *), + sizeof (cairo_bo_event_t *)); + if (unlikely (events == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + event_ptrs = (cairo_bo_event_t **) (events + num_events); + } + + j = 0; + for (i = 0; i < a->num_edges; i++) { + event_ptrs[j] = (cairo_bo_event_t *) &events[j]; + + events[j].type = CAIRO_BO_EVENT_TYPE_START; + events[j].point.y.ordinate = a->edges[i].top; + events[j].point.y.approx = EXACT; + events[j].point.x.ordinate = + _line_compute_intersection_x_for_y (&a->edges[i].line, + events[j].point.y.ordinate); + events[j].point.x.approx = EXACT; + + events[j].edge.a_or_b = 0; + events[j].edge.edge = a->edges[i]; + events[j].edge.deferred.other = NULL; + events[j].edge.prev = NULL; + events[j].edge.next = NULL; + j++; + } + + for (i = 0; i < b->num_edges; i++) { + event_ptrs[j] = (cairo_bo_event_t *) &events[j]; + + events[j].type = CAIRO_BO_EVENT_TYPE_START; + events[j].point.y.ordinate = b->edges[i].top; + events[j].point.y.approx = EXACT; + events[j].point.x.ordinate = + _line_compute_intersection_x_for_y (&b->edges[i].line, + events[j].point.y.ordinate); + events[j].point.x.approx = EXACT; + + events[j].edge.a_or_b = 1; + events[j].edge.edge = b->edges[i]; + events[j].edge.deferred.other = NULL; + events[j].edge.prev = NULL; + events[j].edge.next = NULL; + j++; + } + assert (j == num_events); + +#if 0 + { + FILE *file = fopen ("clip_a.txt", "w"); + _cairo_debug_print_polygon (file, a); + fclose (file); + } + { + FILE *file = fopen ("clip_b.txt", "w"); + _cairo_debug_print_polygon (file, b); + fclose (file); + } +#endif + + a->num_edges = 0; + status = intersection_sweep (event_ptrs, num_events, a); + if (events != stack_events) + free (events); + +#if 0 + { + FILE *file = fopen ("clip_result.txt", "w"); + _cairo_debug_print_polygon (file, a); + fclose (file); + } +#endif + + return status; +} + +cairo_status_t +_cairo_polygon_intersect_with_boxes (cairo_polygon_t *polygon, + cairo_fill_rule_t *winding, + cairo_box_t *boxes, + int num_boxes) +{ + cairo_polygon_t b; + cairo_status_t status; + int n; + + if (num_boxes == 0) { + polygon->num_edges = 0; + return CAIRO_STATUS_SUCCESS; + } + + for (n = 0; n < num_boxes; n++) { + if (polygon->extents.p1.x >= boxes[n].p1.x && + polygon->extents.p2.x <= boxes[n].p2.x && + polygon->extents.p1.y >= boxes[n].p1.y && + polygon->extents.p2.y <= boxes[n].p2.y) + { + return CAIRO_STATUS_SUCCESS; + } + } + + _cairo_polygon_init (&b, NULL, 0); + for (n = 0; n < num_boxes; n++) { + if (boxes[n].p2.x > polygon->extents.p1.x && + boxes[n].p1.x < polygon->extents.p2.x && + boxes[n].p2.y > polygon->extents.p1.y && + boxes[n].p1.y < polygon->extents.p2.y) + { + cairo_point_t p1, p2; + + p1.y = boxes[n].p1.y; + p2.y = boxes[n].p2.y; + + p2.x = p1.x = boxes[n].p1.x; + _cairo_polygon_add_external_edge (&b, &p1, &p2); + + p2.x = p1.x = boxes[n].p2.x; + _cairo_polygon_add_external_edge (&b, &p2, &p1); + } + } + + status = _cairo_polygon_intersect (polygon, *winding, + &b, CAIRO_FILL_RULE_WINDING); + _cairo_polygon_fini (&b); + + *winding = CAIRO_FILL_RULE_WINDING; + return status; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-polygon-reduce.c b/local/recipes/libs/cairo/source/src/cairo-polygon-reduce.c new file mode 100644 index 0000000000..da6c9ab7c7 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-polygon-reduce.c @@ -0,0 +1,1438 @@ +/* + * Copyright © 2004 Carl Worth + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Carl Worth + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +/* Provide definitions for standalone compilation */ +#include "cairoint.h" + +#include "cairo-error-private.h" +#include "cairo-freelist-private.h" +#include "cairo-combsort-inline.h" + +#define DEBUG_POLYGON 0 + +typedef cairo_point_t cairo_bo_point32_t; + +typedef struct _cairo_bo_intersect_ordinate { + int32_t ordinate; + enum { EXACT, INEXACT } exactness; +} cairo_bo_intersect_ordinate_t; + +typedef struct _cairo_bo_intersect_point { + cairo_bo_intersect_ordinate_t x; + cairo_bo_intersect_ordinate_t y; +} cairo_bo_intersect_point_t; + +typedef struct _cairo_bo_edge cairo_bo_edge_t; + +typedef struct _cairo_bo_deferred { + cairo_bo_edge_t *right; + int32_t top; +} cairo_bo_deferred_t; + +struct _cairo_bo_edge { + cairo_edge_t edge; + cairo_bo_edge_t *prev; + cairo_bo_edge_t *next; + cairo_bo_deferred_t deferred; +}; + +/* the parent is always given by index/2 */ +#define PQ_PARENT_INDEX(i) ((i) >> 1) +#define PQ_FIRST_ENTRY 1 + +/* left and right children are index * 2 and (index * 2) +1 respectively */ +#define PQ_LEFT_CHILD_INDEX(i) ((i) << 1) + +typedef enum { + CAIRO_BO_EVENT_TYPE_STOP, + CAIRO_BO_EVENT_TYPE_INTERSECTION, + CAIRO_BO_EVENT_TYPE_START +} cairo_bo_event_type_t; + +typedef struct _cairo_bo_event { + cairo_bo_event_type_t type; + cairo_point_t point; +} cairo_bo_event_t; + +typedef struct _cairo_bo_start_event { + cairo_bo_event_type_t type; + cairo_point_t point; + cairo_bo_edge_t edge; +} cairo_bo_start_event_t; + +typedef struct _cairo_bo_queue_event { + cairo_bo_event_type_t type; + cairo_point_t point; + cairo_bo_edge_t *e1; + cairo_bo_edge_t *e2; +} cairo_bo_queue_event_t; + +typedef struct _pqueue { + int size, max_size; + + cairo_bo_event_t **elements; + cairo_bo_event_t *elements_embedded[1024]; +} pqueue_t; + +typedef struct _cairo_bo_event_queue { + cairo_freepool_t pool; + pqueue_t pqueue; + cairo_bo_event_t **start_events; +} cairo_bo_event_queue_t; + +typedef struct _cairo_bo_sweep_line { + cairo_bo_edge_t *head; + int32_t current_y; + cairo_bo_edge_t *current_edge; +} cairo_bo_sweep_line_t; + +static cairo_fixed_t +_line_compute_intersection_x_for_y (const cairo_line_t *line, + cairo_fixed_t y) +{ + cairo_fixed_t x, dy; + + if (y == line->p1.y) + return line->p1.x; + if (y == line->p2.y) + return line->p2.x; + + x = line->p1.x; + dy = line->p2.y - line->p1.y; + if (dy != 0) { + x += _cairo_fixed_mul_div_floor (y - line->p1.y, + line->p2.x - line->p1.x, + dy); + } + + return x; +} + +static inline int +_cairo_bo_point32_compare (cairo_bo_point32_t const *a, + cairo_bo_point32_t const *b) +{ + int cmp; + + cmp = a->y - b->y; + if (cmp) + return cmp; + + return a->x - b->x; +} + +/* Compare the slope of a to the slope of b, returning 1, 0, -1 if the + * slope a is respectively greater than, equal to, or less than the + * slope of b. + * + * For each edge, consider the direction vector formed from: + * + * top -> bottom + * + * which is: + * + * (dx, dy) = (line.p2.x - line.p1.x, line.p2.y - line.p1.y) + * + * We then define the slope of each edge as dx/dy, (which is the + * inverse of the slope typically used in math instruction). We never + * compute a slope directly as the value approaches infinity, but we + * can derive a slope comparison without division as follows, (where + * the ? represents our compare operator). + * + * 1. slope(a) ? slope(b) + * 2. adx/ady ? bdx/bdy + * 3. (adx * bdy) ? (bdx * ady) + * + * Note that from step 2 to step 3 there is no change needed in the + * sign of the result since both ady and bdy are guaranteed to be + * greater than or equal to 0. + * + * When using this slope comparison to sort edges, some care is needed + * when interpreting the results. Since the slope compare operates on + * distance vectors from top to bottom it gives a correct left to + * right sort for edges that have a common top point, (such as two + * edges with start events at the same location). On the other hand, + * the sense of the result will be exactly reversed for two edges that + * have a common stop point. + */ +static inline int +_slope_compare (const cairo_bo_edge_t *a, + const cairo_bo_edge_t *b) +{ + /* XXX: We're assuming here that dx and dy will still fit in 32 + * bits. That's not true in general as there could be overflow. We + * should prevent that before the tessellation algorithm + * begins. + */ + int32_t adx = a->edge.line.p2.x - a->edge.line.p1.x; + int32_t bdx = b->edge.line.p2.x - b->edge.line.p1.x; + + /* Since the dy's are all positive by construction we can fast + * path several common cases. + */ + + /* First check for vertical lines. */ + if (adx == 0) + return -bdx; + if (bdx == 0) + return adx; + + /* Then where the two edges point in different directions wrt x. */ + if ((adx ^ bdx) < 0) + return adx; + + /* Finally we actually need to do the general comparison. */ + { + int32_t ady = a->edge.line.p2.y - a->edge.line.p1.y; + int32_t bdy = b->edge.line.p2.y - b->edge.line.p1.y; + cairo_int64_t adx_bdy = _cairo_int32x32_64_mul (adx, bdy); + cairo_int64_t bdx_ady = _cairo_int32x32_64_mul (bdx, ady); + + return _cairo_int64_cmp (adx_bdy, bdx_ady); + } +} + +/* + * We need to compare the x-coordinates of a pair of lines for a particular y, + * without loss of precision. + * + * The x-coordinate along an edge for a given y is: + * X = A_x + (Y - A_y) * A_dx / A_dy + * + * So the inequality we wish to test is: + * A_x + (Y - A_y) * A_dx / A_dy ∘ B_x + (Y - B_y) * B_dx / B_dy, + * where ∘ is our inequality operator. + * + * By construction, we know that A_dy and B_dy (and (Y - A_y), (Y - B_y)) are + * all positive, so we can rearrange it thus without causing a sign change: + * A_dy * B_dy * (A_x - B_x) ∘ (Y - B_y) * B_dx * A_dy + * - (Y - A_y) * A_dx * B_dy + * + * Given the assumption that all the deltas fit within 32 bits, we can compute + * this comparison directly using 128 bit arithmetic. For certain, but common, + * input we can reduce this down to a single 32 bit compare by inspecting the + * deltas. + * + * (And put the burden of the work on developing fast 128 bit ops, which are + * required throughout the tessellator.) + * + * See the similar discussion for _slope_compare(). + */ +static int +edges_compare_x_for_y_general (const cairo_bo_edge_t *a, + const cairo_bo_edge_t *b, + int32_t y) +{ + /* XXX: We're assuming here that dx and dy will still fit in 32 + * bits. That's not true in general as there could be overflow. We + * should prevent that before the tessellation algorithm + * begins. + */ + int32_t dx; + int32_t adx, ady; + int32_t bdx, bdy; + enum { + HAVE_NONE = 0x0, + HAVE_DX = 0x1, + HAVE_ADX = 0x2, + HAVE_DX_ADX = HAVE_DX | HAVE_ADX, + HAVE_BDX = 0x4, + HAVE_DX_BDX = HAVE_DX | HAVE_BDX, + HAVE_ADX_BDX = HAVE_ADX | HAVE_BDX, + HAVE_ALL = HAVE_DX | HAVE_ADX | HAVE_BDX + } have_dx_adx_bdx = HAVE_ALL; + + /* don't bother solving for abscissa if the edges' bounding boxes + * can be used to order them. */ + { + int32_t amin, amax; + int32_t bmin, bmax; + if (a->edge.line.p1.x < a->edge.line.p2.x) { + amin = a->edge.line.p1.x; + amax = a->edge.line.p2.x; + } else { + amin = a->edge.line.p2.x; + amax = a->edge.line.p1.x; + } + if (b->edge.line.p1.x < b->edge.line.p2.x) { + bmin = b->edge.line.p1.x; + bmax = b->edge.line.p2.x; + } else { + bmin = b->edge.line.p2.x; + bmax = b->edge.line.p1.x; + } + if (amax < bmin) return -1; + if (amin > bmax) return +1; + } + + ady = a->edge.line.p2.y - a->edge.line.p1.y; + adx = a->edge.line.p2.x - a->edge.line.p1.x; + if (adx == 0) + have_dx_adx_bdx &= ~HAVE_ADX; + + bdy = b->edge.line.p2.y - b->edge.line.p1.y; + bdx = b->edge.line.p2.x - b->edge.line.p1.x; + if (bdx == 0) + have_dx_adx_bdx &= ~HAVE_BDX; + + dx = a->edge.line.p1.x - b->edge.line.p1.x; + if (dx == 0) + have_dx_adx_bdx &= ~HAVE_DX; + +#define L _cairo_int64x32_128_mul (_cairo_int32x32_64_mul (ady, bdy), dx) +#define A _cairo_int64x32_128_mul (_cairo_int32x32_64_mul (adx, bdy), y - a->edge.line.p1.y) +#define B _cairo_int64x32_128_mul (_cairo_int32x32_64_mul (bdx, ady), y - b->edge.line.p1.y) + switch (have_dx_adx_bdx) { + default: + case HAVE_NONE: + return 0; + case HAVE_DX: + /* A_dy * B_dy * (A_x - B_x) ∘ 0 */ + return dx; /* ady * bdy is positive definite */ + case HAVE_ADX: + /* 0 ∘ - (Y - A_y) * A_dx * B_dy */ + return adx; /* bdy * (y - a->top.y) is positive definite */ + case HAVE_BDX: + /* 0 ∘ (Y - B_y) * B_dx * A_dy */ + return -bdx; /* ady * (y - b->top.y) is positive definite */ + case HAVE_ADX_BDX: + /* 0 ∘ (Y - B_y) * B_dx * A_dy - (Y - A_y) * A_dx * B_dy */ + if ((adx ^ bdx) < 0) { + return adx; + } else if (a->edge.line.p1.y == b->edge.line.p1.y) { /* common origin */ + cairo_int64_t adx_bdy, bdx_ady; + + /* ∴ A_dx * B_dy ∘ B_dx * A_dy */ + + adx_bdy = _cairo_int32x32_64_mul (adx, bdy); + bdx_ady = _cairo_int32x32_64_mul (bdx, ady); + + return _cairo_int64_cmp (adx_bdy, bdx_ady); + } else + return _cairo_int128_cmp (A, B); + case HAVE_DX_ADX: + /* A_dy * (A_x - B_x) ∘ - (Y - A_y) * A_dx */ + if ((-adx ^ dx) < 0) { + return dx; + } else { + cairo_int64_t ady_dx, dy_adx; + + ady_dx = _cairo_int32x32_64_mul (ady, dx); + dy_adx = _cairo_int32x32_64_mul (a->edge.line.p1.y - y, adx); + + return _cairo_int64_cmp (ady_dx, dy_adx); + } + case HAVE_DX_BDX: + /* B_dy * (A_x - B_x) ∘ (Y - B_y) * B_dx */ + if ((bdx ^ dx) < 0) { + return dx; + } else { + cairo_int64_t bdy_dx, dy_bdx; + + bdy_dx = _cairo_int32x32_64_mul (bdy, dx); + dy_bdx = _cairo_int32x32_64_mul (y - b->edge.line.p1.y, bdx); + + return _cairo_int64_cmp (bdy_dx, dy_bdx); + } + case HAVE_ALL: + /* XXX try comparing (a->edge.line.p2.x - b->edge.line.p2.x) et al */ + return _cairo_int128_cmp (L, _cairo_int128_sub (B, A)); + } +#undef B +#undef A +#undef L +} + +/* + * We need to compare the x-coordinate of a line for a particular y wrt to a + * given x, without loss of precision. + * + * The x-coordinate along an edge for a given y is: + * X = A_x + (Y - A_y) * A_dx / A_dy + * + * So the inequality we wish to test is: + * A_x + (Y - A_y) * A_dx / A_dy ∘ X + * where ∘ is our inequality operator. + * + * By construction, we know that A_dy (and (Y - A_y)) are + * all positive, so we can rearrange it thus without causing a sign change: + * (Y - A_y) * A_dx ∘ (X - A_x) * A_dy + * + * Given the assumption that all the deltas fit within 32 bits, we can compute + * this comparison directly using 64 bit arithmetic. + * + * See the similar discussion for _slope_compare() and + * edges_compare_x_for_y_general(). + */ +static int +edge_compare_for_y_against_x (const cairo_bo_edge_t *a, + int32_t y, + int32_t x) +{ + int32_t adx, ady; + int32_t dx, dy; + cairo_int64_t L, R; + + if (x < a->edge.line.p1.x && x < a->edge.line.p2.x) + return 1; + if (x > a->edge.line.p1.x && x > a->edge.line.p2.x) + return -1; + + adx = a->edge.line.p2.x - a->edge.line.p1.x; + dx = x - a->edge.line.p1.x; + + if (adx == 0) + return -dx; + if (dx == 0 || (adx ^ dx) < 0) + return adx; + + dy = y - a->edge.line.p1.y; + ady = a->edge.line.p2.y - a->edge.line.p1.y; + + L = _cairo_int32x32_64_mul (dy, adx); + R = _cairo_int32x32_64_mul (dx, ady); + + return _cairo_int64_cmp (L, R); +} + +static int +edges_compare_x_for_y (const cairo_bo_edge_t *a, + const cairo_bo_edge_t *b, + int32_t y) +{ + /* If the sweep-line is currently on an end-point of a line, + * then we know its precise x value (and considering that we often need to + * compare events at end-points, this happens frequently enough to warrant + * special casing). + */ + enum { + HAVE_NEITHER = 0x0, + HAVE_AX = 0x1, + HAVE_BX = 0x2, + HAVE_BOTH = HAVE_AX | HAVE_BX + } have_ax_bx = HAVE_BOTH; + int32_t ax = 0, bx = 0; + + if (y == a->edge.line.p1.y) + ax = a->edge.line.p1.x; + else if (y == a->edge.line.p2.y) + ax = a->edge.line.p2.x; + else + have_ax_bx &= ~HAVE_AX; + + if (y == b->edge.line.p1.y) + bx = b->edge.line.p1.x; + else if (y == b->edge.line.p2.y) + bx = b->edge.line.p2.x; + else + have_ax_bx &= ~HAVE_BX; + + switch (have_ax_bx) { + default: + case HAVE_NEITHER: + return edges_compare_x_for_y_general (a, b, y); + case HAVE_AX: + return -edge_compare_for_y_against_x (b, y, ax); + case HAVE_BX: + return edge_compare_for_y_against_x (a, y, bx); + case HAVE_BOTH: + return ax - bx; + } +} + +static inline int +_line_equal (const cairo_line_t *a, const cairo_line_t *b) +{ + return (a->p1.x == b->p1.x && a->p1.y == b->p1.y && + a->p2.x == b->p2.x && a->p2.y == b->p2.y); +} + +static int +_cairo_bo_sweep_line_compare_edges (cairo_bo_sweep_line_t *sweep_line, + const cairo_bo_edge_t *a, + const cairo_bo_edge_t *b) +{ + int cmp; + + /* compare the edges if not identical */ + if (! _line_equal (&a->edge.line, &b->edge.line)) { + cmp = edges_compare_x_for_y (a, b, sweep_line->current_y); + if (cmp) + return cmp; + + /* The two edges intersect exactly at y, so fall back on slope + * comparison. We know that this compare_edges function will be + * called only when starting a new edge, (not when stopping an + * edge), so we don't have to worry about conditionally inverting + * the sense of _slope_compare. */ + cmp = _slope_compare (a, b); + if (cmp) + return cmp; + } + + /* We've got two collinear edges now. */ + return b->edge.bottom - a->edge.bottom; +} + +static inline cairo_int64_t +det32_64 (int32_t a, int32_t b, + int32_t c, int32_t d) +{ + /* det = a * d - b * c */ + return _cairo_int64_sub (_cairo_int32x32_64_mul (a, d), + _cairo_int32x32_64_mul (b, c)); +} + +static inline cairo_int128_t +det64x32_128 (cairo_int64_t a, int32_t b, + cairo_int64_t c, int32_t d) +{ + /* det = a * d - b * c */ + return _cairo_int128_sub (_cairo_int64x32_128_mul (a, d), + _cairo_int64x32_128_mul (c, b)); +} + +/* Compute the intersection of two lines as defined by two edges. The + * result is provided as a coordinate pair of 128-bit integers. + * + * Returns %CAIRO_BO_STATUS_INTERSECTION if there is an intersection or + * %CAIRO_BO_STATUS_PARALLEL if the two lines are exactly parallel. + */ +static cairo_bool_t +intersect_lines (cairo_bo_edge_t *a, + cairo_bo_edge_t *b, + cairo_bo_intersect_point_t *intersection) +{ + cairo_int64_t a_det, b_det; + + /* XXX: We're assuming here that dx and dy will still fit in 32 + * bits. That's not true in general as there could be overflow. We + * should prevent that before the tessellation algorithm begins. + * What we're doing to mitigate this is to perform clamping in + * cairo_bo_tessellate_polygon(). + */ + int32_t dx1 = a->edge.line.p1.x - a->edge.line.p2.x; + int32_t dy1 = a->edge.line.p1.y - a->edge.line.p2.y; + + int32_t dx2 = b->edge.line.p1.x - b->edge.line.p2.x; + int32_t dy2 = b->edge.line.p1.y - b->edge.line.p2.y; + + cairo_int64_t den_det; + cairo_int64_t R; + cairo_quorem64_t qr; + + den_det = det32_64 (dx1, dy1, dx2, dy2); + + /* Q: Can we determine that the lines do not intersect (within range) + * much more cheaply than computing the intersection point i.e. by + * avoiding the division? + * + * X = ax + t * adx = bx + s * bdx; + * Y = ay + t * ady = by + s * bdy; + * ∴ t * (ady*bdx - bdy*adx) = bdx * (by - ay) + bdy * (ax - bx) + * => t * L = R + * + * Therefore we can reject any intersection (under the criteria for + * valid intersection events) if: + * L^R < 0 => t < 0, or + * L t > 1 + * + * (where top/bottom must at least extend to the line endpoints). + * + * A similar substitution can be performed for s, yielding: + * s * (ady*bdx - bdy*adx) = ady * (ax - bx) - adx * (ay - by) + */ + R = det32_64 (dx2, dy2, + b->edge.line.p1.x - a->edge.line.p1.x, + b->edge.line.p1.y - a->edge.line.p1.y); + if (_cairo_int64_negative (den_det)) { + if (_cairo_int64_ge (den_det, R)) + return FALSE; + } else { + if (_cairo_int64_le (den_det, R)) + return FALSE; + } + + R = det32_64 (dy1, dx1, + a->edge.line.p1.y - b->edge.line.p1.y, + a->edge.line.p1.x - b->edge.line.p1.x); + if (_cairo_int64_negative (den_det)) { + if (_cairo_int64_ge (den_det, R)) + return FALSE; + } else { + if (_cairo_int64_le (den_det, R)) + return FALSE; + } + + /* We now know that the two lines should intersect within range. */ + + a_det = det32_64 (a->edge.line.p1.x, a->edge.line.p1.y, + a->edge.line.p2.x, a->edge.line.p2.y); + b_det = det32_64 (b->edge.line.p1.x, b->edge.line.p1.y, + b->edge.line.p2.x, b->edge.line.p2.y); + + /* x = det (a_det, dx1, b_det, dx2) / den_det */ + qr = _cairo_int_96by64_32x64_divrem (det64x32_128 (a_det, dx1, + b_det, dx2), + den_det); + if (_cairo_int64_eq (qr.rem, den_det)) + return FALSE; +#if 0 + intersection->x.exactness = _cairo_int64_is_zero (qr.rem) ? EXACT : INEXACT; +#else + intersection->x.exactness = EXACT; + if (! _cairo_int64_is_zero (qr.rem)) { + if (_cairo_int64_negative (den_det) ^ _cairo_int64_negative (qr.rem)) + qr.rem = _cairo_int64_negate (qr.rem); + qr.rem = _cairo_int64_mul (qr.rem, _cairo_int32_to_int64 (2)); + if (_cairo_int64_ge (qr.rem, den_det)) { + qr.quo = _cairo_int64_add (qr.quo, + _cairo_int32_to_int64 (_cairo_int64_negative (qr.quo) ? -1 : 1)); + } else + intersection->x.exactness = INEXACT; + } +#endif + intersection->x.ordinate = _cairo_int64_to_int32 (qr.quo); + + /* y = det (a_det, dy1, b_det, dy2) / den_det */ + qr = _cairo_int_96by64_32x64_divrem (det64x32_128 (a_det, dy1, + b_det, dy2), + den_det); + if (_cairo_int64_eq (qr.rem, den_det)) + return FALSE; +#if 0 + intersection->y.exactness = _cairo_int64_is_zero (qr.rem) ? EXACT : INEXACT; +#else + intersection->y.exactness = EXACT; + if (! _cairo_int64_is_zero (qr.rem)) { + if (_cairo_int64_negative (den_det) ^ _cairo_int64_negative (qr.rem)) + qr.rem = _cairo_int64_negate (qr.rem); + qr.rem = _cairo_int64_mul (qr.rem, _cairo_int32_to_int64 (2)); + if (_cairo_int64_ge (qr.rem, den_det)) { + qr.quo = _cairo_int64_add (qr.quo, + _cairo_int32_to_int64 (_cairo_int64_negative (qr.quo) ? -1 : 1)); + } else + intersection->y.exactness = INEXACT; + } +#endif + intersection->y.ordinate = _cairo_int64_to_int32 (qr.quo); + + return TRUE; +} + +static int +_cairo_bo_intersect_ordinate_32_compare (cairo_bo_intersect_ordinate_t a, + int32_t b) +{ + /* First compare the quotient */ + if (a.ordinate > b) + return +1; + if (a.ordinate < b) + return -1; + /* With quotient identical, if remainder is 0 then compare equal */ + /* Otherwise, the non-zero remainder makes a > b */ + return INEXACT == a.exactness; +} + +/* Does the given edge contain the given point. The point must already + * be known to be contained within the line determined by the edge, + * (most likely the point results from an intersection of this edge + * with another). + * + * If we had exact arithmetic, then this function would simply be a + * matter of examining whether the y value of the point lies within + * the range of y values of the edge. But since intersection points + * are not exact due to being rounded to the nearest integer within + * the available precision, we must also examine the x value of the + * point. + * + * The definition of "contains" here is that the given intersection + * point will be seen by the sweep line after the start event for the + * given edge and before the stop event for the edge. See the comments + * in the implementation for more details. + */ +static cairo_bool_t +_cairo_bo_edge_contains_intersect_point (cairo_bo_edge_t *edge, + cairo_bo_intersect_point_t *point) +{ + int cmp_top, cmp_bottom; + + /* XXX: When running the actual algorithm, we don't actually need to + * compare against edge->top at all here, since any intersection above + * top is eliminated early via a slope comparison. We're leaving these + * here for now only for the sake of the quadratic-time intersection + * finder which needs them. + */ + + cmp_top = _cairo_bo_intersect_ordinate_32_compare (point->y, + edge->edge.top); + cmp_bottom = _cairo_bo_intersect_ordinate_32_compare (point->y, + edge->edge.bottom); + + if (cmp_top < 0 || cmp_bottom > 0) + { + return FALSE; + } + + if (cmp_top > 0 && cmp_bottom < 0) + { + return TRUE; + } + + /* At this stage, the point lies on the same y value as either + * edge->top or edge->bottom, so we have to examine the x value in + * order to properly determine containment. */ + + /* If the y value of the point is the same as the y value of the + * top of the edge, then the x value of the point must be greater + * to be considered as inside the edge. Similarly, if the y value + * of the point is the same as the y value of the bottom of the + * edge, then the x value of the point must be less to be + * considered as inside. */ + + if (cmp_top == 0) { + cairo_fixed_t top_x; + + top_x = _line_compute_intersection_x_for_y (&edge->edge.line, + edge->edge.top); + return _cairo_bo_intersect_ordinate_32_compare (point->x, top_x) > 0; + } else { /* cmp_bottom == 0 */ + cairo_fixed_t bot_x; + + bot_x = _line_compute_intersection_x_for_y (&edge->edge.line, + edge->edge.bottom); + return _cairo_bo_intersect_ordinate_32_compare (point->x, bot_x) < 0; + } +} + +/* Compute the intersection of two edges. The result is provided as a + * coordinate pair of 128-bit integers. + * + * Returns %CAIRO_BO_STATUS_INTERSECTION if there is an intersection + * that is within both edges, %CAIRO_BO_STATUS_NO_INTERSECTION if the + * intersection of the lines defined by the edges occurs outside of + * one or both edges, and %CAIRO_BO_STATUS_PARALLEL if the two edges + * are exactly parallel. + * + * Note that when determining if a candidate intersection is "inside" + * an edge, we consider both the infinitesimal shortening and the + * infinitesimal tilt rules described by John Hobby. Specifically, if + * the intersection is exactly the same as an edge point, it is + * effectively outside (no intersection is returned). Also, if the + * intersection point has the same + */ +static cairo_bool_t +_cairo_bo_edge_intersect (cairo_bo_edge_t *a, + cairo_bo_edge_t *b, + cairo_bo_point32_t *intersection) +{ + cairo_bo_intersect_point_t quorem; + + if (! intersect_lines (a, b, &quorem)) + return FALSE; + + if (! _cairo_bo_edge_contains_intersect_point (a, &quorem)) + return FALSE; + + if (! _cairo_bo_edge_contains_intersect_point (b, &quorem)) + return FALSE; + + /* Now that we've correctly compared the intersection point and + * determined that it lies within the edge, then we know that we + * no longer need any more bits of storage for the intersection + * than we do for our edge coordinates. We also no longer need the + * remainder from the division. */ + intersection->x = quorem.x.ordinate; + intersection->y = quorem.y.ordinate; + + return TRUE; +} + +static inline int +cairo_bo_event_compare (const cairo_bo_event_t *a, + const cairo_bo_event_t *b) +{ + int cmp; + + cmp = _cairo_bo_point32_compare (&a->point, &b->point); + if (cmp) + return cmp; + + cmp = a->type - b->type; + if (cmp) + return cmp; + + return a - b; +} + +static inline void +_pqueue_init (pqueue_t *pq) +{ + pq->max_size = ARRAY_LENGTH (pq->elements_embedded); + pq->size = 0; + + pq->elements = pq->elements_embedded; +} + +static inline void +_pqueue_fini (pqueue_t *pq) +{ + if (pq->elements != pq->elements_embedded) + free (pq->elements); +} + +static cairo_status_t +_pqueue_grow (pqueue_t *pq) +{ + cairo_bo_event_t **new_elements; + pq->max_size *= 2; + + if (pq->elements == pq->elements_embedded) { + new_elements = _cairo_malloc_ab (pq->max_size, + sizeof (cairo_bo_event_t *)); + if (unlikely (new_elements == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memcpy (new_elements, pq->elements_embedded, + sizeof (pq->elements_embedded)); + } else { + new_elements = _cairo_realloc_ab (pq->elements, + pq->max_size, + sizeof (cairo_bo_event_t *)); + if (unlikely (new_elements == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + pq->elements = new_elements; + return CAIRO_STATUS_SUCCESS; +} + +static inline cairo_status_t +_pqueue_push (pqueue_t *pq, cairo_bo_event_t *event) +{ + cairo_bo_event_t **elements; + int i, parent; + + if (unlikely (pq->size + 1 == pq->max_size)) { + cairo_status_t status; + + status = _pqueue_grow (pq); + if (unlikely (status)) + return status; + } + + elements = pq->elements; + + for (i = ++pq->size; + i != PQ_FIRST_ENTRY && + cairo_bo_event_compare (event, + elements[parent = PQ_PARENT_INDEX (i)]) < 0; + i = parent) + { + elements[i] = elements[parent]; + } + + elements[i] = event; + + return CAIRO_STATUS_SUCCESS; +} + +static inline void +_pqueue_pop (pqueue_t *pq) +{ + cairo_bo_event_t **elements = pq->elements; + cairo_bo_event_t *tail; + int child, i; + + tail = elements[pq->size--]; + if (pq->size == 0) { + elements[PQ_FIRST_ENTRY] = NULL; + return; + } + + for (i = PQ_FIRST_ENTRY; + (child = PQ_LEFT_CHILD_INDEX (i)) <= pq->size; + i = child) + { + if (child != pq->size && + cairo_bo_event_compare (elements[child+1], + elements[child]) < 0) + { + child++; + } + + if (cairo_bo_event_compare (elements[child], tail) >= 0) + break; + + elements[i] = elements[child]; + } + elements[i] = tail; +} + +static inline cairo_status_t +_cairo_bo_event_queue_insert (cairo_bo_event_queue_t *queue, + cairo_bo_event_type_t type, + cairo_bo_edge_t *e1, + cairo_bo_edge_t *e2, + const cairo_point_t *point) +{ + cairo_bo_queue_event_t *event; + + event = _cairo_freepool_alloc (&queue->pool); + if (unlikely (event == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + event->type = type; + event->e1 = e1; + event->e2 = e2; + event->point = *point; + + return _pqueue_push (&queue->pqueue, (cairo_bo_event_t *) event); +} + +static void +_cairo_bo_event_queue_delete (cairo_bo_event_queue_t *queue, + cairo_bo_event_t *event) +{ + _cairo_freepool_free (&queue->pool, event); +} + +static cairo_bo_event_t * +_cairo_bo_event_dequeue (cairo_bo_event_queue_t *event_queue) +{ + cairo_bo_event_t *event, *cmp; + + event = event_queue->pqueue.elements[PQ_FIRST_ENTRY]; + cmp = *event_queue->start_events; + if (event == NULL || + (cmp != NULL && cairo_bo_event_compare (cmp, event) < 0)) + { + event = cmp; + event_queue->start_events++; + } + else + { + _pqueue_pop (&event_queue->pqueue); + } + + return event; +} + +CAIRO_COMBSORT_DECLARE (_cairo_bo_event_queue_sort, + cairo_bo_event_t *, + cairo_bo_event_compare) + +static void +_cairo_bo_event_queue_init (cairo_bo_event_queue_t *event_queue, + cairo_bo_event_t **start_events, + int num_events) +{ + _cairo_bo_event_queue_sort (start_events, num_events); + start_events[num_events] = NULL; + + event_queue->start_events = start_events; + + _cairo_freepool_init (&event_queue->pool, + sizeof (cairo_bo_queue_event_t)); + _pqueue_init (&event_queue->pqueue); + event_queue->pqueue.elements[PQ_FIRST_ENTRY] = NULL; +} + +static cairo_status_t +_cairo_bo_event_queue_insert_stop (cairo_bo_event_queue_t *event_queue, + cairo_bo_edge_t *edge) +{ + cairo_bo_point32_t point; + + point.y = edge->edge.bottom; + point.x = _line_compute_intersection_x_for_y (&edge->edge.line, + point.y); + return _cairo_bo_event_queue_insert (event_queue, + CAIRO_BO_EVENT_TYPE_STOP, + edge, NULL, + &point); +} + +static void +_cairo_bo_event_queue_fini (cairo_bo_event_queue_t *event_queue) +{ + _pqueue_fini (&event_queue->pqueue); + _cairo_freepool_fini (&event_queue->pool); +} + +static inline cairo_status_t +_cairo_bo_event_queue_insert_if_intersect_below_current_y (cairo_bo_event_queue_t *event_queue, + cairo_bo_edge_t *left, + cairo_bo_edge_t *right) +{ + cairo_bo_point32_t intersection; + + if (_line_equal (&left->edge.line, &right->edge.line)) + return CAIRO_STATUS_SUCCESS; + + /* The names "left" and "right" here are correct descriptions of + * the order of the two edges within the active edge list. So if a + * slope comparison also puts left less than right, then we know + * that the intersection of these two segments has already + * occurred before the current sweep line position. */ + if (_slope_compare (left, right) <= 0) + return CAIRO_STATUS_SUCCESS; + + if (! _cairo_bo_edge_intersect (left, right, &intersection)) + return CAIRO_STATUS_SUCCESS; + + return _cairo_bo_event_queue_insert (event_queue, + CAIRO_BO_EVENT_TYPE_INTERSECTION, + left, right, + &intersection); +} + +static void +_cairo_bo_sweep_line_init (cairo_bo_sweep_line_t *sweep_line) +{ + sweep_line->head = NULL; + sweep_line->current_y = INT32_MIN; + sweep_line->current_edge = NULL; +} + +static cairo_status_t +_cairo_bo_sweep_line_insert (cairo_bo_sweep_line_t *sweep_line, + cairo_bo_edge_t *edge) +{ + if (sweep_line->current_edge != NULL) { + cairo_bo_edge_t *prev, *next; + int cmp; + + cmp = _cairo_bo_sweep_line_compare_edges (sweep_line, + sweep_line->current_edge, + edge); + if (cmp < 0) { + prev = sweep_line->current_edge; + next = prev->next; + while (next != NULL && + _cairo_bo_sweep_line_compare_edges (sweep_line, + next, edge) < 0) + { + prev = next, next = prev->next; + } + + prev->next = edge; + edge->prev = prev; + edge->next = next; + if (next != NULL) + next->prev = edge; + } else if (cmp > 0) { + next = sweep_line->current_edge; + prev = next->prev; + while (prev != NULL && + _cairo_bo_sweep_line_compare_edges (sweep_line, + prev, edge) > 0) + { + next = prev, prev = next->prev; + } + + next->prev = edge; + edge->next = next; + edge->prev = prev; + if (prev != NULL) + prev->next = edge; + else + sweep_line->head = edge; + } else { + prev = sweep_line->current_edge; + edge->prev = prev; + edge->next = prev->next; + if (prev->next != NULL) + prev->next->prev = edge; + prev->next = edge; + } + } else { + sweep_line->head = edge; + } + + sweep_line->current_edge = edge; + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_bo_sweep_line_delete (cairo_bo_sweep_line_t *sweep_line, + cairo_bo_edge_t *edge) +{ + if (edge->prev != NULL) + edge->prev->next = edge->next; + else + sweep_line->head = edge->next; + + if (edge->next != NULL) + edge->next->prev = edge->prev; + + if (sweep_line->current_edge == edge) + sweep_line->current_edge = edge->prev ? edge->prev : edge->next; +} + +static void +_cairo_bo_sweep_line_swap (cairo_bo_sweep_line_t *sweep_line, + cairo_bo_edge_t *left, + cairo_bo_edge_t *right) +{ + if (left->prev != NULL) + left->prev->next = right; + else + sweep_line->head = right; + + if (right->next != NULL) + right->next->prev = left; + + left->next = right->next; + right->next = left; + + right->prev = left->prev; + left->prev = right; +} + +static inline cairo_bool_t +edges_colinear (const cairo_bo_edge_t *a, const cairo_bo_edge_t *b) +{ + if (_line_equal (&a->edge.line, &b->edge.line)) + return TRUE; + + if (_slope_compare (a, b)) + return FALSE; + + /* The choice of y is not truly arbitrary since we must guarantee that it + * is greater than the start of either line. + */ + if (a->edge.line.p1.y == b->edge.line.p1.y) { + return a->edge.line.p1.x == b->edge.line.p1.x; + } else if (a->edge.line.p2.y == b->edge.line.p2.y) { + return a->edge.line.p2.x == b->edge.line.p2.x; + } else if (a->edge.line.p1.y < b->edge.line.p1.y) { + return edge_compare_for_y_against_x (b, + a->edge.line.p1.y, + a->edge.line.p1.x) == 0; + } else { + return edge_compare_for_y_against_x (a, + b->edge.line.p1.y, + b->edge.line.p1.x) == 0; + } +} + +static void +_cairo_bo_edge_end (cairo_bo_edge_t *left, + int32_t bot, + cairo_polygon_t *polygon) +{ + cairo_bo_deferred_t *d = &left->deferred; + + if (likely (d->top < bot)) { + _cairo_polygon_add_line (polygon, + &left->edge.line, + d->top, bot, + 1); + _cairo_polygon_add_line (polygon, + &d->right->edge.line, + d->top, bot, + -1); + } + + d->right = NULL; +} + + +static inline void +_cairo_bo_edge_start_or_continue (cairo_bo_edge_t *left, + cairo_bo_edge_t *right, + int top, + cairo_polygon_t *polygon) +{ + if (left->deferred.right == right) + return; + + if (left->deferred.right != NULL) { + if (right != NULL && edges_colinear (left->deferred.right, right)) + { + /* continuation on right, so just swap edges */ + left->deferred.right = right; + return; + } + + _cairo_bo_edge_end (left, top, polygon); + } + + if (right != NULL && ! edges_colinear (left, right)) { + left->deferred.top = top; + left->deferred.right = right; + } +} + +static inline void +_active_edges_to_polygon (cairo_bo_edge_t *left, + int32_t top, + cairo_fill_rule_t fill_rule, + cairo_polygon_t *polygon) +{ + cairo_bo_edge_t *right; + unsigned int mask; + + if (fill_rule == CAIRO_FILL_RULE_WINDING) + mask = ~0; + else + mask = 1; + + while (left != NULL) { + int in_out = left->edge.dir; + + right = left->next; + if (left->deferred.right == NULL) { + while (right != NULL && right->deferred.right == NULL) + right = right->next; + + if (right != NULL && edges_colinear (left, right)) { + /* continuation on left */ + left->deferred = right->deferred; + right->deferred.right = NULL; + } + } + + right = left->next; + while (right != NULL) { + if (right->deferred.right != NULL) + _cairo_bo_edge_end (right, top, polygon); + + in_out += right->edge.dir; + if ((in_out & mask) == 0) { + /* skip co-linear edges */ + if (right->next == NULL || !edges_colinear (right, right->next)) + break; + } + + right = right->next; + } + + _cairo_bo_edge_start_or_continue (left, right, top, polygon); + + left = right; + if (left != NULL) + left = left->next; + } +} + + +static cairo_status_t +_cairo_bentley_ottmann_tessellate_bo_edges (cairo_bo_event_t **start_events, + int num_events, + cairo_fill_rule_t fill_rule, + cairo_polygon_t *polygon) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; /* silence compiler */ + cairo_bo_event_queue_t event_queue; + cairo_bo_sweep_line_t sweep_line; + cairo_bo_event_t *event; + cairo_bo_edge_t *left, *right; + cairo_bo_edge_t *e1, *e2; + + _cairo_bo_event_queue_init (&event_queue, start_events, num_events); + _cairo_bo_sweep_line_init (&sweep_line); + + while ((event = _cairo_bo_event_dequeue (&event_queue))) { + if (event->point.y != sweep_line.current_y) { + _active_edges_to_polygon (sweep_line.head, + sweep_line.current_y, + fill_rule, polygon); + + sweep_line.current_y = event->point.y; + } + + switch (event->type) { + case CAIRO_BO_EVENT_TYPE_START: + e1 = &((cairo_bo_start_event_t *) event)->edge; + + status = _cairo_bo_sweep_line_insert (&sweep_line, e1); + if (unlikely (status)) + goto unwind; + + status = _cairo_bo_event_queue_insert_stop (&event_queue, e1); + if (unlikely (status)) + goto unwind; + + left = e1->prev; + right = e1->next; + + if (left != NULL) { + status = _cairo_bo_event_queue_insert_if_intersect_below_current_y (&event_queue, left, e1); + if (unlikely (status)) + goto unwind; + } + + if (right != NULL) { + status = _cairo_bo_event_queue_insert_if_intersect_below_current_y (&event_queue, e1, right); + if (unlikely (status)) + goto unwind; + } + + break; + + case CAIRO_BO_EVENT_TYPE_STOP: + e1 = ((cairo_bo_queue_event_t *) event)->e1; + _cairo_bo_event_queue_delete (&event_queue, event); + + left = e1->prev; + right = e1->next; + + _cairo_bo_sweep_line_delete (&sweep_line, e1); + + if (e1->deferred.right != NULL) + _cairo_bo_edge_end (e1, e1->edge.bottom, polygon); + + if (left != NULL && right != NULL) { + status = _cairo_bo_event_queue_insert_if_intersect_below_current_y (&event_queue, left, right); + if (unlikely (status)) + goto unwind; + } + + break; + + case CAIRO_BO_EVENT_TYPE_INTERSECTION: + e1 = ((cairo_bo_queue_event_t *) event)->e1; + e2 = ((cairo_bo_queue_event_t *) event)->e2; + _cairo_bo_event_queue_delete (&event_queue, event); + + /* skip this intersection if its edges are not adjacent */ + if (e2 != e1->next) + break; + + left = e1->prev; + right = e2->next; + + _cairo_bo_sweep_line_swap (&sweep_line, e1, e2); + + /* after the swap e2 is left of e1 */ + + if (left != NULL) { + status = _cairo_bo_event_queue_insert_if_intersect_below_current_y (&event_queue, left, e2); + if (unlikely (status)) + goto unwind; + } + + if (right != NULL) { + status = _cairo_bo_event_queue_insert_if_intersect_below_current_y (&event_queue, e1, right); + if (unlikely (status)) + goto unwind; + } + + break; + } + } + + unwind: + _cairo_bo_event_queue_fini (&event_queue); + + return status; +} + +cairo_status_t +_cairo_polygon_reduce (cairo_polygon_t *polygon, + cairo_fill_rule_t fill_rule) +{ + cairo_status_t status; + cairo_bo_start_event_t stack_events[CAIRO_STACK_ARRAY_LENGTH (cairo_bo_start_event_t)]; + cairo_bo_start_event_t *events; + cairo_bo_event_t *stack_event_ptrs[ARRAY_LENGTH (stack_events) + 1]; + cairo_bo_event_t **event_ptrs; + int num_limits; + int num_events; + int i; + + num_events = polygon->num_edges; + if (unlikely (0 == num_events)) + return CAIRO_STATUS_SUCCESS; + + if (DEBUG_POLYGON) { + FILE *file = fopen ("reduce_in.txt", "w"); + _cairo_debug_print_polygon (file, polygon); + fclose (file); + } + + events = stack_events; + event_ptrs = stack_event_ptrs; + if (num_events > ARRAY_LENGTH (stack_events)) { + events = _cairo_malloc_ab_plus_c (num_events, + sizeof (cairo_bo_start_event_t) + + sizeof (cairo_bo_event_t *), + sizeof (cairo_bo_event_t *)); + if (unlikely (events == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + event_ptrs = (cairo_bo_event_t **) (events + num_events); + } + + for (i = 0; i < num_events; i++) { + event_ptrs[i] = (cairo_bo_event_t *) &events[i]; + + events[i].type = CAIRO_BO_EVENT_TYPE_START; + events[i].point.y = polygon->edges[i].top; + events[i].point.x = + _line_compute_intersection_x_for_y (&polygon->edges[i].line, + events[i].point.y); + + events[i].edge.edge = polygon->edges[i]; + events[i].edge.deferred.right = NULL; + events[i].edge.prev = NULL; + events[i].edge.next = NULL; + } + + num_limits = polygon->num_limits; polygon->num_limits = 0; + polygon->num_edges = 0; + + status = _cairo_bentley_ottmann_tessellate_bo_edges (event_ptrs, + num_events, + fill_rule, + polygon); + polygon->num_limits = num_limits; + + if (events != stack_events) + free (events); + + if (DEBUG_POLYGON) { + FILE *file = fopen ("reduce_out.txt", "w"); + _cairo_debug_print_polygon (file, polygon); + fclose (file); + } + + return status; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-polygon.c b/local/recipes/libs/cairo/source/src/cairo-polygon.c new file mode 100644 index 0000000000..0e0b813285 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-polygon.c @@ -0,0 +1,608 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" + +#include "cairo-boxes-private.h" +#include "cairo-contour-private.h" +#include "cairo-error-private.h" + +#define DEBUG_POLYGON 0 + +#if DEBUG_POLYGON && !NDEBUG +static void +assert_last_edge_is_valid(cairo_polygon_t *polygon, + const cairo_box_t *limit) +{ + cairo_edge_t *edge; + cairo_fixed_t x; + + edge = &polygon->edges[polygon->num_edges-1]; + + assert (edge->bottom > edge->top); + assert (edge->top >= limit->p1.y); + assert (edge->bottom <= limit->p2.y); + + x = _cairo_edge_compute_intersection_x_for_y (&edge->line.p1, + &edge->line.p2, + edge->top); + assert (x >= limit->p1.x); + assert (x <= limit->p2.x); + + x = _cairo_edge_compute_intersection_x_for_y (&edge->line.p1, + &edge->line.p2, + edge->bottom); + assert (x >= limit->p1.x); + assert (x <= limit->p2.x); +} +#else +#define assert_last_edge_is_valid(p, l) +#endif + +static void +_cairo_polygon_add_edge (cairo_polygon_t *polygon, + const cairo_point_t *p1, + const cairo_point_t *p2, + int dir); + +void +_cairo_polygon_limit (cairo_polygon_t *polygon, + const cairo_box_t *limits, + int num_limits) +{ + int n; + + polygon->limits = limits; + polygon->num_limits = num_limits; + + if (polygon->num_limits) { + polygon->limit = limits[0]; + for (n = 1; n < num_limits; n++) { + if (limits[n].p1.x < polygon->limit.p1.x) + polygon->limit.p1.x = limits[n].p1.x; + + if (limits[n].p1.y < polygon->limit.p1.y) + polygon->limit.p1.y = limits[n].p1.y; + + if (limits[n].p2.x > polygon->limit.p2.x) + polygon->limit.p2.x = limits[n].p2.x; + + if (limits[n].p2.y > polygon->limit.p2.y) + polygon->limit.p2.y = limits[n].p2.y; + } + } +} + +void +_cairo_polygon_limit_to_clip (cairo_polygon_t *polygon, + const cairo_clip_t *clip) +{ + if (clip) + _cairo_polygon_limit (polygon, clip->boxes, clip->num_boxes); + else + _cairo_polygon_limit (polygon, 0, 0); +} + +void +_cairo_polygon_init (cairo_polygon_t *polygon, + const cairo_box_t *limits, + int num_limits) +{ + VG (VALGRIND_MAKE_MEM_UNDEFINED (polygon, sizeof (cairo_polygon_t))); + + polygon->status = CAIRO_STATUS_SUCCESS; + + polygon->num_edges = 0; + + polygon->edges = polygon->edges_embedded; + polygon->edges_size = ARRAY_LENGTH (polygon->edges_embedded); + + polygon->extents.p1.x = polygon->extents.p1.y = INT32_MAX; + polygon->extents.p2.x = polygon->extents.p2.y = INT32_MIN; + + _cairo_polygon_limit (polygon, limits, num_limits); +} + +void +_cairo_polygon_init_with_clip (cairo_polygon_t *polygon, + const cairo_clip_t *clip) +{ + if (clip) + _cairo_polygon_init (polygon, clip->boxes, clip->num_boxes); + else + _cairo_polygon_init (polygon, 0, 0); +} + +cairo_status_t +_cairo_polygon_init_boxes (cairo_polygon_t *polygon, + const cairo_boxes_t *boxes) +{ + const struct _cairo_boxes_chunk *chunk; + int i; + + VG (VALGRIND_MAKE_MEM_UNDEFINED (polygon, sizeof (cairo_polygon_t))); + + polygon->status = CAIRO_STATUS_SUCCESS; + + polygon->num_edges = 0; + + polygon->edges = polygon->edges_embedded; + polygon->edges_size = ARRAY_LENGTH (polygon->edges_embedded); + if (boxes->num_boxes > ARRAY_LENGTH (polygon->edges_embedded)/2) { + polygon->edges_size = 2 * boxes->num_boxes; + polygon->edges = _cairo_malloc_ab (polygon->edges_size, + 2*sizeof(cairo_edge_t)); + if (unlikely (polygon->edges == NULL)) + return polygon->status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + polygon->extents.p1.x = polygon->extents.p1.y = INT32_MAX; + polygon->extents.p2.x = polygon->extents.p2.y = INT32_MIN; + + polygon->limits = NULL; + polygon->num_limits = 0; + + for (chunk = &boxes->chunks; chunk != NULL; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + cairo_point_t p1, p2; + + p1 = chunk->base[i].p1; + p2.x = p1.x; + p2.y = chunk->base[i].p2.y; + _cairo_polygon_add_edge (polygon, &p1, &p2, 1); + + p1 = chunk->base[i].p2; + p2.x = p1.x; + p2.y = chunk->base[i].p1.y; + _cairo_polygon_add_edge (polygon, &p1, &p2, 1); + } + } + + return polygon->status; +} + +cairo_status_t +_cairo_polygon_init_box_array (cairo_polygon_t *polygon, + cairo_box_t *boxes, + int num_boxes) +{ + int i; + + VG (VALGRIND_MAKE_MEM_UNDEFINED (polygon, sizeof (cairo_polygon_t))); + + polygon->status = CAIRO_STATUS_SUCCESS; + + polygon->num_edges = 0; + + polygon->edges = polygon->edges_embedded; + polygon->edges_size = ARRAY_LENGTH (polygon->edges_embedded); + if (num_boxes > ARRAY_LENGTH (polygon->edges_embedded)/2) { + polygon->edges_size = 2 * num_boxes; + polygon->edges = _cairo_malloc_ab (polygon->edges_size, + 2*sizeof(cairo_edge_t)); + if (unlikely (polygon->edges == NULL)) + return polygon->status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + polygon->extents.p1.x = polygon->extents.p1.y = INT32_MAX; + polygon->extents.p2.x = polygon->extents.p2.y = INT32_MIN; + + polygon->limits = NULL; + polygon->num_limits = 0; + + for (i = 0; i < num_boxes; i++) { + cairo_point_t p1, p2; + + p1 = boxes[i].p1; + p2.x = p1.x; + p2.y = boxes[i].p2.y; + _cairo_polygon_add_edge (polygon, &p1, &p2, 1); + + p1 = boxes[i].p2; + p2.x = p1.x; + p2.y = boxes[i].p1.y; + _cairo_polygon_add_edge (polygon, &p1, &p2, 1); + } + + return polygon->status; +} + + +void +_cairo_polygon_fini (cairo_polygon_t *polygon) +{ + if (polygon->edges != polygon->edges_embedded) + free (polygon->edges); + + VG (VALGRIND_MAKE_MEM_UNDEFINED (polygon, sizeof (cairo_polygon_t))); +} + +/* make room for at least one more edge */ +static cairo_bool_t +_cairo_polygon_grow (cairo_polygon_t *polygon) +{ + cairo_edge_t *new_edges; + int old_size = polygon->edges_size; + int new_size = 4 * old_size; + + if (CAIRO_INJECT_FAULT ()) { + polygon->status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + return FALSE; + } + + if (polygon->edges == polygon->edges_embedded) { + new_edges = _cairo_malloc_ab (new_size, sizeof (cairo_edge_t)); + if (new_edges != NULL) + memcpy (new_edges, polygon->edges, old_size * sizeof (cairo_edge_t)); + } else { + new_edges = _cairo_realloc_ab (polygon->edges, + new_size, sizeof (cairo_edge_t)); + } + + if (unlikely (new_edges == NULL)) { + polygon->status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + return FALSE; + } + + polygon->edges = new_edges; + polygon->edges_size = new_size; + + return TRUE; +} + +static void +_add_edge (cairo_polygon_t *polygon, + const cairo_point_t *p1, + const cairo_point_t *p2, + int top, int bottom, + int dir) +{ + cairo_edge_t *edge; + + assert (top < bottom); + + if (unlikely (polygon->num_edges == polygon->edges_size)) { + if (! _cairo_polygon_grow (polygon)) + return; + } + + edge = &polygon->edges[polygon->num_edges++]; + edge->line.p1 = *p1; + edge->line.p2 = *p2; + edge->top = top; + edge->bottom = bottom; + edge->dir = dir; + + if (top < polygon->extents.p1.y) + polygon->extents.p1.y = top; + if (bottom > polygon->extents.p2.y) + polygon->extents.p2.y = bottom; + + if (p1->x < polygon->extents.p1.x || p1->x > polygon->extents.p2.x) { + cairo_fixed_t x = p1->x; + if (top != p1->y) + x = _cairo_edge_compute_intersection_x_for_y (p1, p2, top); + if (x < polygon->extents.p1.x) + polygon->extents.p1.x = x; + if (x > polygon->extents.p2.x) + polygon->extents.p2.x = x; + } + + if (p2->x < polygon->extents.p1.x || p2->x > polygon->extents.p2.x) { + cairo_fixed_t x = p2->x; + if (bottom != p2->y) + x = _cairo_edge_compute_intersection_x_for_y (p1, p2, bottom); + if (x < polygon->extents.p1.x) + polygon->extents.p1.x = x; + if (x > polygon->extents.p2.x) + polygon->extents.p2.x = x; + } +} + +static void +_add_clipped_edge (cairo_polygon_t *polygon, + const cairo_point_t *p1, + const cairo_point_t *p2, + const int top, const int bottom, + const int dir) +{ + cairo_point_t bot_left, top_right; + cairo_fixed_t top_y, bot_y; + int n; + + for (n = 0; n < polygon->num_limits; n++) { + const cairo_box_t *limits = &polygon->limits[n]; + cairo_fixed_t pleft, pright; + + if (top >= limits->p2.y) + continue; + if (bottom <= limits->p1.y) + continue; + + bot_left.x = limits->p1.x; + bot_left.y = limits->p2.y; + + top_right.x = limits->p2.x; + top_right.y = limits->p1.y; + + /* The useful region */ + top_y = MAX (top, limits->p1.y); + bot_y = MIN (bottom, limits->p2.y); + + /* The projection of the edge on the horizontal axis */ + pleft = MIN (p1->x, p2->x); + pright = MAX (p1->x, p2->x); + + if (limits->p1.x <= pleft && pright <= limits->p2.x) { + /* Projection of the edge completely contained in the box: + * clip vertically by restricting top and bottom */ + + _add_edge (polygon, p1, p2, top_y, bot_y, dir); + assert_last_edge_is_valid (polygon, limits); + } else if (pright <= limits->p1.x) { + /* Projection of the edge to the left of the box: + * replace with the left side of the box (clipped top/bottom) */ + + _add_edge (polygon, &limits->p1, &bot_left, top_y, bot_y, dir); + assert_last_edge_is_valid (polygon, limits); + } else if (limits->p2.x <= pleft) { + /* Projection of the edge to the right of the box: + * replace with the right side of the box (clipped top/bottom) */ + + _add_edge (polygon, &top_right, &limits->p2, top_y, bot_y, dir); + assert_last_edge_is_valid (polygon, limits); + } else { + /* The edge and the box intersect in a generic way */ + cairo_fixed_t left_y, right_y; + cairo_bool_t top_left_to_bottom_right; + + /* + * The edge intersects the lines corresponding to the left + * and right sides of the limit box at left_y and right_y, + * but we need to add edges for the range from top_y to + * bot_y. + * + * For both intersections, there are three cases: + * + * 1) It is outside the vertical range of the limit + * box. In this case we can simply further clip the + * edge we will be emitting (i.e. restrict its + * top/bottom limits to those of the limit box). + * + * 2) It is inside the vertical range of the limit + * box. In this case, we need to add the vertical edge + * connecting the correct vertex to the intersection, + * in order to preserve the winding count. + * + * 3) It is exactly on the box. In this case, do nothing. + * + * These operations restrict the active range (stored in + * top_y/bot_y) so that the p1-p2 edge is completely + * inside the box if it is clipped to this vertical range. + */ + + top_left_to_bottom_right = (p1->x <= p2->x) == (p1->y <= p2->y); + if (top_left_to_bottom_right) { + if (pleft >= limits->p1.x) { + left_y = top_y; + } else { + left_y = _cairo_edge_compute_intersection_y_for_x (p1, p2, + limits->p1.x); + if (_cairo_edge_compute_intersection_x_for_y (p1, p2, left_y) < limits->p1.x) + left_y++; + } + + left_y = MIN (left_y, bot_y); + if (top_y < left_y) { + _add_edge (polygon, &limits->p1, &bot_left, + top_y, left_y, dir); + assert_last_edge_is_valid (polygon, limits); + top_y = left_y; + } + + if (pright <= limits->p2.x) { + right_y = bot_y; + } else { + right_y = _cairo_edge_compute_intersection_y_for_x (p1, p2, + limits->p2.x); + if (_cairo_edge_compute_intersection_x_for_y (p1, p2, right_y) > limits->p2.x) + right_y--; + } + + right_y = MAX (right_y, top_y); + if (bot_y > right_y) { + _add_edge (polygon, &top_right, &limits->p2, + right_y, bot_y, dir); + assert_last_edge_is_valid (polygon, limits); + bot_y = right_y; + } + } else { + if (pright <= limits->p2.x) { + right_y = top_y; + } else { + right_y = _cairo_edge_compute_intersection_y_for_x (p1, p2, + limits->p2.x); + if (_cairo_edge_compute_intersection_x_for_y (p1, p2, right_y) > limits->p2.x) + right_y++; + } + + right_y = MIN (right_y, bot_y); + if (top_y < right_y) { + _add_edge (polygon, &top_right, &limits->p2, + top_y, right_y, dir); + assert_last_edge_is_valid (polygon, limits); + top_y = right_y; + } + + if (pleft >= limits->p1.x) { + left_y = bot_y; + } else { + left_y = _cairo_edge_compute_intersection_y_for_x (p1, p2, + limits->p1.x); + if (_cairo_edge_compute_intersection_x_for_y (p1, p2, left_y) < limits->p1.x) + left_y--; + } + + left_y = MAX (left_y, top_y); + if (bot_y > left_y) { + _add_edge (polygon, &limits->p1, &bot_left, + left_y, bot_y, dir); + assert_last_edge_is_valid (polygon, limits); + bot_y = left_y; + } + } + + if (top_y != bot_y) { + _add_edge (polygon, p1, p2, top_y, bot_y, dir); + assert_last_edge_is_valid (polygon, limits); + } + } + } +} + +static void +_cairo_polygon_add_edge (cairo_polygon_t *polygon, + const cairo_point_t *p1, + const cairo_point_t *p2, + int dir) +{ + /* drop horizontal edges */ + if (p1->y == p2->y) + return; + + if (p1->y > p2->y) { + const cairo_point_t *t; + t = p1, p1 = p2, p2 = t; + dir = -dir; + } + + if (polygon->num_limits) { + if (p2->y <= polygon->limit.p1.y) + return; + + if (p1->y >= polygon->limit.p2.y) + return; + + _add_clipped_edge (polygon, p1, p2, p1->y, p2->y, dir); + } else + _add_edge (polygon, p1, p2, p1->y, p2->y, dir); +} + +cairo_status_t +_cairo_polygon_add_external_edge (void *polygon, + const cairo_point_t *p1, + const cairo_point_t *p2) +{ + _cairo_polygon_add_edge (polygon, p1, p2, 1); + return _cairo_polygon_status (polygon); +} + +cairo_status_t +_cairo_polygon_add_line (cairo_polygon_t *polygon, + const cairo_line_t *line, + int top, int bottom, + int dir) +{ + /* drop horizontal edges */ + if (line->p1.y == line->p2.y) + return CAIRO_STATUS_SUCCESS; + + if (bottom <= top) + return CAIRO_STATUS_SUCCESS; + + if (polygon->num_limits) { + if (line->p2.y <= polygon->limit.p1.y) + return CAIRO_STATUS_SUCCESS; + + if (line->p1.y >= polygon->limit.p2.y) + return CAIRO_STATUS_SUCCESS; + + _add_clipped_edge (polygon, &line->p1, &line->p2, top, bottom, dir); + } else + _add_edge (polygon, &line->p1, &line->p2, top, bottom, dir); + + return polygon->status; +} + +cairo_status_t +_cairo_polygon_add_contour (cairo_polygon_t *polygon, + const cairo_contour_t *contour) +{ + const struct _cairo_contour_chain *chain; + const cairo_point_t *prev = NULL; + int i; + + if (contour->chain.num_points <= 1) + return CAIRO_INT_STATUS_SUCCESS; + + prev = &contour->chain.points[0]; + for (chain = &contour->chain; chain; chain = chain->next) { + for (i = 0; i < chain->num_points; i++) { + _cairo_polygon_add_edge (polygon, prev, &chain->points[i], + contour->direction); + prev = &chain->points[i]; + } + } + + return polygon->status; +} + +void +_cairo_polygon_translate (cairo_polygon_t *polygon, int dx, int dy) +{ + int n; + + dx = _cairo_fixed_from_int (dx); + dy = _cairo_fixed_from_int (dy); + + polygon->extents.p1.x += dx; + polygon->extents.p2.x += dx; + polygon->extents.p1.y += dy; + polygon->extents.p2.y += dy; + + for (n = 0; n < polygon->num_edges; n++) { + cairo_edge_t *e = &polygon->edges[n]; + + e->top += dy; + e->bottom += dy; + + e->line.p1.x += dx; + e->line.p2.x += dx; + e->line.p1.y += dy; + e->line.p2.y += dy; + } +} diff --git a/local/recipes/libs/cairo/source/src/cairo-private.h b/local/recipes/libs/cairo/source/src/cairo-private.h new file mode 100644 index 0000000000..9f4f55b7ce --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-private.h @@ -0,0 +1,64 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_PRIVATE_H +#define CAIRO_PRIVATE_H + +#include "cairo-types-private.h" +#include "cairo-reference-count-private.h" + +CAIRO_BEGIN_DECLS + +struct _cairo { + cairo_reference_count_t ref_count; + cairo_status_t status; + cairo_user_data_array_t user_data; + + const cairo_backend_t *backend; +}; + +cairo_private cairo_t * +_cairo_create_in_error (cairo_status_t status); + +cairo_private void +_cairo_init (cairo_t *cr, + const cairo_backend_t *backend); + +cairo_private void +_cairo_fini (cairo_t *cr); + +CAIRO_END_DECLS + +#endif /* CAIRO_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-ps-surface-private.h b/local/recipes/libs/cairo/source/src/cairo-ps-surface-private.h new file mode 100644 index 0000000000..e825b57fdd --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-ps-surface-private.h @@ -0,0 +1,126 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2003 University of Southern California + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Kristian Høgsberg + * Keith Packard + */ + +#ifndef CAIRO_PS_SURFACE_PRIVATE_H +#define CAIRO_PS_SURFACE_PRIVATE_H + +#include "cairo-ps.h" + +#include "cairo-surface-private.h" +#include "cairo-surface-clipper-private.h" +#include "cairo-pdf-operators-private.h" + +#include + +typedef struct _cairo_ps_form { + cairo_hash_entry_t base; + unsigned char *unique_id; + unsigned long unique_id_length; + cairo_bool_t is_image; + int id; + cairo_surface_t *src_surface; + unsigned int regions_id; + cairo_rectangle_int_t src_surface_extents; + cairo_bool_t src_surface_bounded; + cairo_filter_t filter; + + /* Union of source extents required for all operations using this form */ + cairo_rectangle_int_t required_extents; +} cairo_ps_form_t; + +typedef struct cairo_ps_surface { + cairo_surface_t base; + + /* Here final_stream corresponds to the stream/file passed to + * cairo_ps_surface_create surface is built. Meanwhile stream is a + * temporary stream in which the file output is built, (so that + * the header can be built and inserted into the target stream + * before the contents of the temporary stream are copied). */ + cairo_output_stream_t *final_stream; + + FILE *tmpfile; + cairo_output_stream_t *stream; + + cairo_bool_t eps; + cairo_bool_t contains_eps; + cairo_content_t content; + double width; + double height; + cairo_point_int_t document_bbox_p1, document_bbox_p2; /* in PS coordinates */ + cairo_rectangle_int_t surface_extents; + cairo_bool_t surface_bounded; + cairo_matrix_t cairo_to_ps; + cairo_bool_t paint_proc; /* TRUE if surface will be used in a PaintProc */ + + cairo_bool_t current_pattern_is_solid_color; + cairo_color_t current_color; + + int num_pages; + + cairo_paginated_mode_t paginated_mode; + + cairo_bool_t force_fallbacks; + cairo_bool_t has_creation_date; + time_t creation_date; + + cairo_scaled_font_subsets_t *font_subsets; + + cairo_list_t document_media; + cairo_array_t dsc_header_comments; + cairo_array_t dsc_setup_comments; + cairo_array_t dsc_page_setup_comments; + + cairo_array_t recording_surf_stack; + + cairo_array_t *dsc_comment_target; + + cairo_ps_level_t ps_level; + cairo_ps_level_t ps_level_used; + + cairo_surface_clipper_t clipper; + + cairo_pdf_operators_t pdf_operators; + cairo_surface_t *paginated_surface; + cairo_hash_table_t *forms; + int num_forms; + long total_form_size; +} cairo_ps_surface_t; + +#endif /* CAIRO_PS_SURFACE_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-ps-surface.c b/local/recipes/libs/cairo/source/src/cairo-ps-surface.c new file mode 100644 index 0000000000..4cae9e0599 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-ps-surface.c @@ -0,0 +1,5437 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2003 University of Southern California + * Copyright © 2005 Red Hat, Inc + * Copyright © 2007,2008 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Kristian Høgsberg + * Keith Packard + * Adrian Johnson + */ + + +/* + * Design of the PS output: + * + * The PS output is harmonised with the PDF operations using PS procedures + * to emulate the PDF operators. + * + * This has a number of advantages: + * 1. A large chunk of code is shared between the PDF and PS backends. + * See cairo-pdf-operators. + * 2. Using gs to do PS -> PDF and PDF -> PS will always work well. + */ + +#define _DEFAULT_SOURCE /* for ctime_r(), snprintf(), strdup() */ +#include "cairoint.h" + +#include "cairo-ps.h" +#include "cairo-ps-surface-private.h" + +#include "cairo-pdf-operators-private.h" +#include "cairo-pdf-shading-private.h" + +#include "cairo-array-private.h" +#include "cairo-composite-rectangles-private.h" +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-image-info-private.h" +#include "cairo-image-surface-inline.h" +#include "cairo-list-inline.h" +#include "cairo-output-stream-private.h" +#include "cairo-paginated-private.h" +#include "cairo-recording-surface-inline.h" +#include "cairo-recording-surface-private.h" +#include "cairo-scaled-font-subsets-private.h" +#include "cairo-surface-clipper-private.h" +#include "cairo-surface-snapshot-inline.h" +#include "cairo-surface-subsurface-private.h" +#include "cairo-tag-attributes-private.h" +#include "cairo-type3-glyph-surface-private.h" + +#include +#include +#include +#include +#include + +/* Forms are emitted at the start and stored in memory so we limit the + * total size of all forms to prevent running out of memory. If this + * limit is exceeded, surfaces that would be stored in forms are + * emitted each time the surface is used. */ +#define MAX_L2_FORM_DATA (256*1024) +#define MAX_L3_FORM_DATA (2*1024*1024) /* Assume Level 3 printers have more memory */ + +/* #define DEBUG_PS 1 */ + +#if DEBUG_PS +#define DEBUG_FALLBACK(s) \ + fprintf (stderr, "%s::%d -- %s\n", __FUNCTION__, __LINE__, (s)) +#else +#define DEBUG_FALLBACK(s) +#endif + +#if !defined(HAVE_CTIME_R) && !defined(__redox__) +static char *ctime_r(const time_t *timep, char *buf) +{ + (void)buf; + return ctime(timep); +} +#endif + +/** + * SECTION:cairo-ps + * @Title: PostScript Surfaces + * @Short_Description: Rendering PostScript documents + * @See_Also: #cairo_surface_t + * + * The PostScript surface is used to render cairo graphics to Adobe + * PostScript files and is a multi-page vector surface backend. + * + * The following mime types are supported on source patterns: + * %CAIRO_MIME_TYPE_JPEG, %CAIRO_MIME_TYPE_UNIQUE_ID, + * %CAIRO_MIME_TYPE_CCITT_FAX, %CAIRO_MIME_TYPE_CCITT_FAX_PARAMS, + * %CAIRO_MIME_TYPE_EPS, %CAIRO_MIME_TYPE_EPS_PARAMS. + * + * Source surfaces used by the PostScript surface that have a + * %CAIRO_MIME_TYPE_UNIQUE_ID mime type will be stored in PostScript + * printer memory for the duration of the print + * job. %CAIRO_MIME_TYPE_UNIQUE_ID should only be used for small + * frequently used sources. + * + * The %CAIRO_MIME_TYPE_CCITT_FAX and %CAIRO_MIME_TYPE_CCITT_FAX_PARAMS mime types + * are documented in [CCITT Fax Images][ccitt]. + * + * # Embedding EPS files # {#eps} + * + * Encapsulated PostScript files can be embedded in the PS output by + * setting the CAIRO_MIME_TYPE_EPS mime data on a surface to the EPS + * data and painting the surface. The EPS will be scaled and + * translated to the extents of the surface the EPS data is attached + * to. + * + * The %CAIRO_MIME_TYPE_EPS mime type requires the + * %CAIRO_MIME_TYPE_EPS_PARAMS mime data to also be provided in order + * to specify the embeddding parameters. %CAIRO_MIME_TYPE_EPS_PARAMS + * mime data must contain a string of the form "bbox=[llx lly urx + * ury]" that specifies the bounding box (in PS coordinates) of the + * EPS graphics. The parameters are: lower left x, lower left y, upper + * right x, upper right y. Normally the bbox data is identical to the + * \%\%\%BoundingBox data in the EPS file. + * + **/ + +/** + * CAIRO_HAS_PS_SURFACE: + * + * Defined if the PostScript surface backend is available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.2 + **/ + +typedef enum { + CAIRO_PS_COMPRESS_NONE, + CAIRO_PS_COMPRESS_LZW, + CAIRO_PS_COMPRESS_DEFLATE +} cairo_ps_compress_t; + +typedef enum { + CAIRO_EMIT_SURFACE_ANALYZE, + CAIRO_EMIT_SURFACE_EMIT, + CAIRO_EMIT_SURFACE_EMIT_FORM +} cairo_emit_surface_mode_t; + +typedef struct { + /* input params */ + cairo_surface_t *src_surface; + unsigned int regions_id; + cairo_operator_t op; + const cairo_rectangle_int_t *src_surface_extents; + cairo_bool_t src_surface_bounded; + const cairo_rectangle_int_t *src_op_extents; /* operation extents in src space */ + cairo_filter_t filter; + cairo_bool_t stencil_mask; /* TRUE if source is to be used as a mask */ + + /* output params */ + cairo_bool_t is_image; /* returns TRUE if PS image will be emitted */ + /* FALSE if recording will be emitted */ + long approx_size; + int eod_count; +} cairo_emit_surface_params_t; + +static const cairo_surface_backend_t cairo_ps_surface_backend; +static const cairo_paginated_surface_backend_t cairo_ps_surface_paginated_backend; + +static cairo_bool_t +_cairo_ps_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle); + +static void +_cairo_ps_form_emit (void *entry, void *closure); + +static const cairo_ps_level_t _cairo_ps_levels[] = +{ + CAIRO_PS_LEVEL_2, + CAIRO_PS_LEVEL_3 +}; + +#define CAIRO_PS_LEVEL_LAST ARRAY_LENGTH (_cairo_ps_levels) + +static const char * _cairo_ps_level_strings[CAIRO_PS_LEVEL_LAST] = +{ + "PS Level 2", + "PS Level 3" +}; + +static const char *_cairo_ps_supported_mime_types[] = +{ + CAIRO_MIME_TYPE_JPEG, + CAIRO_MIME_TYPE_UNIQUE_ID, + CAIRO_MIME_TYPE_CCITT_FAX, + CAIRO_MIME_TYPE_CCITT_FAX_PARAMS, + CAIRO_MIME_TYPE_EPS, + CAIRO_MIME_TYPE_EPS_PARAMS, + NULL +}; + +typedef struct _cairo_page_standard_media { + const char *name; + int width; + int height; +} cairo_page_standard_media_t; + +static const cairo_page_standard_media_t _cairo_page_standard_media[] = +{ + { "A0", 2384, 3371 }, + { "A1", 1685, 2384 }, + { "A2", 1190, 1684 }, + { "A3", 842, 1190 }, + { "A4", 595, 842 }, + { "A5", 420, 595 }, + { "B4", 729, 1032 }, + { "B5", 516, 729 }, + { "Letter", 612, 792 }, + { "Tabloid", 792, 1224 }, + { "Ledger", 1224, 792 }, + { "Legal", 612, 1008 }, + { "Statement", 396, 612 }, + { "Executive", 540, 720 }, + { "Folio", 612, 936 }, + { "Quarto", 610, 780 }, + { "10x14", 720, 1008 }, +}; + +typedef struct _cairo_page_media { + char *name; + int width; + int height; + cairo_list_t link; +} cairo_page_media_t; + +static void +_cairo_ps_form_init_key (cairo_ps_form_t *key) +{ + key->base.hash = _cairo_hash_bytes (_CAIRO_HASH_INIT_VALUE, + key->unique_id, key->unique_id_length); +} + +static cairo_bool_t +_cairo_ps_form_equal (const void *key_a, const void *key_b) +{ + const cairo_ps_form_t *a = key_a; + const cairo_ps_form_t *b = key_b; + + if (a->filter != b->filter) + return FALSE; + + if (a->unique_id_length != b->unique_id_length) + return FALSE; + + return memcmp (a->unique_id, b->unique_id, a->unique_id_length) == 0; +} + +static void +_cairo_ps_form_pluck (void *entry, void *closure) +{ + cairo_ps_form_t *surface_entry = entry; + cairo_hash_table_t *patterns = closure; + + _cairo_hash_table_remove (patterns, &surface_entry->base); + free (surface_entry->unique_id); + if (_cairo_surface_is_recording (surface_entry->src_surface) && surface_entry->regions_id != 0) + _cairo_recording_surface_region_array_remove (surface_entry->src_surface, surface_entry->regions_id); + cairo_surface_destroy (surface_entry->src_surface); + free (surface_entry); +} + +static void +_cairo_ps_surface_emit_header (cairo_ps_surface_t *surface) +{ + char ctime_buf[26]; + time_t now; + char **comments; + int i, num_comments; + int level; + const char *eps_header = ""; + cairo_bool_t has_bbox; + + if (surface->has_creation_date) + now = surface->creation_date; + else + now = time (NULL); + + if (surface->ps_level_used == CAIRO_PS_LEVEL_2) + level = 2; + else + level = 3; + + if (surface->eps) + eps_header = " EPSF-3.0"; + + _cairo_output_stream_printf (surface->final_stream, + "%%!PS-Adobe-3.0%s\n" + "%%%%Creator: cairo %s (https://cairographics.org)\n", + eps_header, + cairo_version_string ()); + + if (!getenv ("CAIRO_DEBUG_PS_NO_DATE")) { + _cairo_output_stream_printf (surface->final_stream, + "%%%%CreationDate: %s", + ctime_r (&now, ctime_buf)); + } + + _cairo_output_stream_printf (surface->final_stream, + "%%%%Pages: %d\n" + "%%%%DocumentData: Clean7Bit\n" + "%%%%LanguageLevel: %d\n", + surface->num_pages, + level); + + if (!cairo_list_is_empty (&surface->document_media)) { + cairo_page_media_t *page; + cairo_bool_t first = TRUE; + + cairo_list_foreach_entry (page, cairo_page_media_t, &surface->document_media, link) { + if (first) { + _cairo_output_stream_printf (surface->final_stream, + "%%%%DocumentMedia: "); + first = FALSE; + } else { + _cairo_output_stream_printf (surface->final_stream, + "%%%%+ "); + } + _cairo_output_stream_printf (surface->final_stream, + "%s %d %d 0 () ()\n", + page->name, + page->width, + page->height); + } + } + + has_bbox = FALSE; + num_comments = _cairo_array_num_elements (&surface->dsc_header_comments); + comments = _cairo_array_index (&surface->dsc_header_comments, 0); + for (i = 0; i < num_comments; i++) { + _cairo_output_stream_printf (surface->final_stream, + "%s\n", comments[i]); + if (strncmp (comments[i], "%%BoundingBox:", 14) == 0) + has_bbox = TRUE; + + free (comments[i]); + comments[i] = NULL; + } + + if (!has_bbox) { + _cairo_output_stream_printf (surface->final_stream, + "%%%%BoundingBox: %d %d %d %d\n", + surface->document_bbox_p1.x, + surface->document_bbox_p1.y, + surface->document_bbox_p2.x, + surface->document_bbox_p2.y); + } + + _cairo_output_stream_printf (surface->final_stream, + "%%%%EndComments\n"); + + _cairo_output_stream_printf (surface->final_stream, + "%%%%BeginProlog\n"); + + if (surface->eps) { + _cairo_output_stream_printf (surface->final_stream, + "50 dict begin\n"); + } else { + _cairo_output_stream_printf (surface->final_stream, + "/languagelevel where\n" + "{ pop languagelevel } { 1 } ifelse\n" + "%d lt { /Helvetica findfont 12 scalefont setfont 50 500 moveto\n" + " (This print job requires a PostScript Language Level %d printer.) show\n" + " showpage quit } if\n", + level, + level); + } + + _cairo_output_stream_printf (surface->final_stream, + "/q { gsave } bind def\n" + "/Q { grestore } bind def\n" + "/cm { 6 array astore concat } bind def\n" + "/w { setlinewidth } bind def\n" + "/J { setlinecap } bind def\n" + "/j { setlinejoin } bind def\n" + "/M { setmiterlimit } bind def\n" + "/d { setdash } bind def\n" + "/m { moveto } bind def\n" + "/l { lineto } bind def\n" + "/c { curveto } bind def\n" + "/h { closepath } bind def\n" + "/re { exch dup neg 3 1 roll 5 3 roll moveto 0 rlineto\n" + " 0 exch rlineto 0 rlineto closepath } bind def\n" + "/S { stroke } bind def\n" + "/f { fill } bind def\n" + "/f* { eofill } bind def\n" + "/n { newpath } bind def\n" + "/W { clip } bind def\n" + "/W* { eoclip } bind def\n" + "/BT { } bind def\n" + "/ET { } bind def\n" + "/BDC { mark 3 1 roll /BDC pdfmark } bind def\n" + "/EMC { mark /EMC pdfmark } bind def\n" + "/cairo_store_point { /cairo_point_y exch def /cairo_point_x exch def } def\n" + "/Tj { show currentpoint cairo_store_point } bind def\n" + "/TJ {\n" + " {\n" + " dup\n" + " type /stringtype eq\n" + " { show } { -0.001 mul 0 cairo_font_matrix dtransform rmoveto } ifelse\n" + " } forall\n" + " currentpoint cairo_store_point\n" + "} bind def\n" + "/cairo_selectfont { cairo_font_matrix aload pop pop pop 0 0 6 array astore\n" + " cairo_font exch selectfont cairo_point_x cairo_point_y moveto } bind def\n" + "/Tf { pop /cairo_font exch def /cairo_font_matrix where\n" + " { pop cairo_selectfont } if } bind def\n" + "/Td { matrix translate cairo_font_matrix matrix concatmatrix dup\n" + " /cairo_font_matrix exch def dup 4 get exch 5 get cairo_store_point\n" + " /cairo_font where { pop cairo_selectfont } if } bind def\n" + "/Tm { 2 copy 8 2 roll 6 array astore /cairo_font_matrix exch def\n" + " cairo_store_point /cairo_font where { pop cairo_selectfont } if } bind def\n" + "/g { setgray } bind def\n" + "/rg { setrgbcolor } bind def\n" + "/d1 { setcachedevice } bind def\n" + "/cairo_data_source {\n" + " CairoDataIndex CairoData length lt\n" + " { CairoData CairoDataIndex get /CairoDataIndex CairoDataIndex 1 add def }\n" + " { () } ifelse\n" + "} def\n" + "/cairo_flush_ascii85_file { cairo_ascii85_file status { cairo_ascii85_file flushfile } if } def\n" + "/cairo_image { image cairo_flush_ascii85_file } def\n" + "/cairo_imagemask { imagemask cairo_flush_ascii85_file } def\n"); + + if (!surface->eps) { + _cairo_output_stream_printf (surface->final_stream, + "/cairo_set_page_size {\n" + " %% Change paper size, but only if different from previous paper size otherwise\n" + " %% duplex fails. PLRM specifies a tolerance of 5 pts when matching paper size\n" + " %% so we use the same when checking if the size changes.\n" + " /setpagedevice where {\n" + " pop currentpagedevice\n" + " /PageSize known {\n" + " 2 copy\n" + " currentpagedevice /PageSize get aload pop\n" + " exch 4 1 roll\n" + " sub abs 5 gt\n" + " 3 1 roll\n" + " sub abs 5 gt\n" + " or\n" + " } {\n" + " true\n" + " } ifelse\n" + " {\n" + " 2 array astore\n" + " 2 dict begin\n" + " /PageSize exch def\n" + " /ImagingBBox null def\n" + " currentdict end\n" + " setpagedevice\n" + " } {\n" + " pop pop\n" + " } ifelse\n" + " } {\n" + " pop\n" + " } ifelse\n" + "} def\n"); + } + if (surface->contains_eps) { + _cairo_output_stream_printf (surface->final_stream, + "/cairo_eps_begin {\n" + " /cairo_save_state save def\n" + " /dict_count countdictstack def\n" + " /op_count count 1 sub def\n" + " userdict begin\n" + " /showpage { } def\n" + " 0 g 0 J 1 w 0 j 10 M [ ] 0 d n\n" + "} bind def\n" + "/cairo_eps_end {\n" + " count op_count sub { pop } repeat\n" + " countdictstack dict_count sub { end } repeat\n" + " cairo_save_state restore\n" + "} bind def\n"); + } + + _cairo_output_stream_printf (surface->final_stream, + "%%%%EndProlog\n"); +} + +static cairo_status_t +_cairo_ps_surface_emit_type1_font_subset (cairo_ps_surface_t *surface, + cairo_scaled_font_subset_t *font_subset) + + +{ + cairo_type1_subset_t subset; + cairo_status_t status; + int length; + char name[64]; + + snprintf (name, sizeof name, "f-%d-%d", + font_subset->font_id, font_subset->subset_id); + status = _cairo_type1_subset_init (&subset, name, font_subset, TRUE); + if (unlikely (status)) + return status; + + /* FIXME: Figure out document structure convention for fonts */ + +#if DEBUG_PS + _cairo_output_stream_printf (surface->final_stream, + "%% _cairo_ps_surface_emit_type1_font_subset\n"); +#endif + + _cairo_output_stream_printf (surface->final_stream, + "%%%%BeginResource: font %s\n", + subset.base_font); + length = subset.header_length + subset.data_length + subset.trailer_length; + _cairo_output_stream_write (surface->final_stream, subset.data, length); + _cairo_output_stream_printf (surface->final_stream, + "%%%%EndResource\n"); + + _cairo_type1_subset_fini (&subset); + + return CAIRO_STATUS_SUCCESS; +} + + +static cairo_status_t +_cairo_ps_surface_emit_type1_font_fallback (cairo_ps_surface_t *surface, + cairo_scaled_font_subset_t *font_subset) +{ + cairo_type1_subset_t subset; + cairo_status_t status; + int length; + char name[64]; + + snprintf (name, sizeof name, "f-%d-%d", + font_subset->font_id, font_subset->subset_id); + status = _cairo_type1_fallback_init_hex (&subset, name, font_subset); + if (unlikely (status)) + return status; + +#if DEBUG_PS + _cairo_output_stream_printf (surface->final_stream, + "%% _cairo_ps_surface_emit_type1_font_fallback\n"); +#endif + + _cairo_output_stream_printf (surface->final_stream, + "%%%%BeginResource: font %s\n", + subset.base_font); + length = subset.header_length + subset.data_length + subset.trailer_length; + _cairo_output_stream_write (surface->final_stream, subset.data, length); + _cairo_output_stream_printf (surface->final_stream, + "%%%%EndResource\n"); + + _cairo_type1_fallback_fini (&subset); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_ps_surface_emit_truetype_font_subset (cairo_ps_surface_t *surface, + cairo_scaled_font_subset_t *font_subset) + + +{ + cairo_truetype_subset_t subset; + cairo_status_t status; + unsigned int i, begin, end; + + status = _cairo_truetype_subset_init_ps (&subset, font_subset); + if (unlikely (status)) + return status; + + /* FIXME: Figure out document structure convention for fonts */ + +#if DEBUG_PS + _cairo_output_stream_printf (surface->final_stream, + "%% _cairo_ps_surface_emit_truetype_font_subset\n"); +#endif + + _cairo_output_stream_printf (surface->final_stream, + "%%%%BeginResource: font %s\n", + subset.ps_name); + _cairo_output_stream_printf (surface->final_stream, + "11 dict begin\n" + "/FontType 42 def\n" + "/FontName /%s def\n" + "/PaintType 0 def\n" + "/FontMatrix [ 1 0 0 1 0 0 ] def\n" + "/FontBBox [ 0 0 0 0 ] def\n" + "/Encoding 256 array def\n" + "0 1 255 { Encoding exch /.notdef put } for\n", + subset.ps_name); + + /* FIXME: Figure out how subset->x_max etc maps to the /FontBBox */ + + if (font_subset->is_latin) { + for (i = 1; i < 256; i++) { + if (font_subset->latin_to_subset_glyph_index[i] > 0) { + if (font_subset->glyph_names != NULL) { + _cairo_output_stream_printf (surface->final_stream, + "Encoding %d /%s put\n", + i, font_subset->glyph_names[font_subset->latin_to_subset_glyph_index[i]]); + } else { + _cairo_output_stream_printf (surface->final_stream, + "Encoding %d /g%ld put\n", i, font_subset->latin_to_subset_glyph_index[i]); + } + } + } + } else { + for (i = 1; i < font_subset->num_glyphs; i++) { + if (font_subset->glyph_names != NULL) { + _cairo_output_stream_printf (surface->final_stream, + "Encoding %d /%s put\n", + i, font_subset->glyph_names[i]); + } else { + _cairo_output_stream_printf (surface->final_stream, + "Encoding %d /g%d put\n", i, i); + } + } + } + + _cairo_output_stream_printf (surface->final_stream, + "/CharStrings %d dict dup begin\n" + "/.notdef 0 def\n", + font_subset->num_glyphs); + + for (i = 1; i < font_subset->num_glyphs; i++) { + if (font_subset->glyph_names != NULL) { + _cairo_output_stream_printf (surface->final_stream, + "/%s %d def\n", + font_subset->glyph_names[i], i); + } else { + _cairo_output_stream_printf (surface->final_stream, + "/g%d %d def\n", i, i); + } + } + + _cairo_output_stream_printf (surface->final_stream, + "end readonly def\n"); + + _cairo_output_stream_printf (surface->final_stream, + "/sfnts [\n"); + begin = 0; + end = 0; + for (i = 0; i < subset.num_string_offsets; i++) { + end = subset.string_offsets[i]; + _cairo_output_stream_printf (surface->final_stream,"<"); + _cairo_output_stream_write_hex_string (surface->final_stream, + subset.data + begin, end - begin); + _cairo_output_stream_printf (surface->final_stream,"00>\n"); + begin = end; + } + if (subset.data_length > end) { + _cairo_output_stream_printf (surface->final_stream,"<"); + _cairo_output_stream_write_hex_string (surface->final_stream, + subset.data + end, subset.data_length - end); + _cairo_output_stream_printf (surface->final_stream,"00>\n"); + } + + _cairo_output_stream_printf (surface->final_stream, + "] def\n" + "/f-%d-%d currentdict end definefont pop\n", + font_subset->font_id, + font_subset->subset_id); + _cairo_output_stream_printf (surface->final_stream, + "%%%%EndResource\n"); + _cairo_truetype_subset_fini (&subset); + + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_ps_emit_imagemask (cairo_image_surface_t *image, + cairo_output_stream_t *stream) +{ + uint8_t *row, *byte; + int rows, cols; + + /* The only image type supported by Type 3 fonts are 1-bit image + * masks */ + assert (image->format == CAIRO_FORMAT_A1); + + _cairo_output_stream_printf (stream, + "<<\n" + " /ImageType 1\n" + " /Width %d\n" + " /Height %d\n" + " /ImageMatrix [%d 0 0 %d 0 %d]\n" + " /Decode [1 0]\n" + " /BitsPerComponent 1\n", + image->width, + image->height, + image->width, + -image->height, + image->height); + + _cairo_output_stream_printf (stream, + " /DataSource {<\n "); + for (row = image->data, rows = image->height; rows; row += image->stride, rows--) { + for (byte = row, cols = (image->width + 7) / 8; cols; byte++, cols--) { + uint8_t output_byte = CAIRO_BITSWAP8_IF_LITTLE_ENDIAN (*byte); + _cairo_output_stream_printf (stream, "%02x ", output_byte); + } + _cairo_output_stream_printf (stream, "\n "); + } + _cairo_output_stream_printf (stream, ">}\n>>\n"); + + _cairo_output_stream_printf (stream, + "imagemask\n"); + + return _cairo_output_stream_get_status (stream); +} + +static cairo_status_t +_cairo_ps_surface_emit_type3_font_subset (cairo_ps_surface_t *surface, + cairo_scaled_font_subset_t *font_subset) + + +{ + cairo_status_t status; + unsigned int i; + cairo_box_t font_bbox = {{0,0},{0,0}}; + cairo_box_t bbox = {{0,0},{0,0}}; + cairo_surface_t *type3_surface; + double width; + + if (font_subset->num_glyphs == 0) + return CAIRO_STATUS_SUCCESS; + +#if DEBUG_PS + _cairo_output_stream_printf (surface->final_stream, + "%% _cairo_ps_surface_emit_type3_font_subset\n"); +#endif + + _cairo_output_stream_printf (surface->final_stream, + "%%%%BeginResource: font\n"); + _cairo_output_stream_printf (surface->final_stream, + "8 dict begin\n" + "/FontType 3 def\n" + "/FontMatrix [1 0 0 -1 0 0] def\n" + "/Encoding 256 array def\n" + "0 1 255 { Encoding exch /.notdef put } for\n"); + + type3_surface = _cairo_type3_glyph_surface_create (font_subset->scaled_font, + NULL, + _cairo_ps_emit_imagemask, + surface->font_subsets, + TRUE); + status = type3_surface->status; + if (unlikely (status)) + return status; + + for (i = 0; i < font_subset->num_glyphs; i++) { + if (font_subset->glyph_names != NULL) { + _cairo_output_stream_printf (surface->final_stream, + "Encoding %d /%s put\n", + i, font_subset->glyph_names[i]); + } else { + _cairo_output_stream_printf (surface->final_stream, + "Encoding %d /g%d put\n", i, i); + } + } + + _cairo_output_stream_printf (surface->final_stream, + "/Glyphs [\n"); + + for (i = 0; i < font_subset->num_glyphs; i++) { + _cairo_output_stream_printf (surface->final_stream, + " { %% %d\n", i); + status = _cairo_type3_glyph_surface_emit_glyph (type3_surface, + surface->final_stream, + font_subset->glyphs[i], + &bbox, + &width); + if (unlikely (status)) + break; + + _cairo_output_stream_printf (surface->final_stream, + " }\n"); + if (i == 0) { + font_bbox.p1.x = bbox.p1.x; + font_bbox.p1.y = bbox.p1.y; + font_bbox.p2.x = bbox.p2.x; + font_bbox.p2.y = bbox.p2.y; + } else { + if (bbox.p1.x < font_bbox.p1.x) + font_bbox.p1.x = bbox.p1.x; + if (bbox.p1.y < font_bbox.p1.y) + font_bbox.p1.y = bbox.p1.y; + if (bbox.p2.x > font_bbox.p2.x) + font_bbox.p2.x = bbox.p2.x; + if (bbox.p2.y > font_bbox.p2.y) + font_bbox.p2.y = bbox.p2.y; + } + } + cairo_surface_finish (type3_surface); + cairo_surface_destroy (type3_surface); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->final_stream, + "] def\n" + "/FontBBox [%f %f %f %f] def\n" + "/BuildChar {\n" + " exch /Glyphs get\n" + " exch get\n" + " 10 dict begin exec end\n" + "} bind def\n" + "currentdict\n" + "end\n" + "/f-%d-%d exch definefont pop\n", + _cairo_fixed_to_double (font_bbox.p1.x), + - _cairo_fixed_to_double (font_bbox.p2.y), + _cairo_fixed_to_double (font_bbox.p2.x), + - _cairo_fixed_to_double (font_bbox.p1.y), + font_subset->font_id, + font_subset->subset_id); + _cairo_output_stream_printf (surface->final_stream, + "%%%%EndResource\n"); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_ps_surface_emit_unscaled_font_subset (cairo_scaled_font_subset_t *font_subset, + void *closure) +{ + cairo_ps_surface_t *surface = closure; + cairo_int_status_t status; + + status = _cairo_scaled_font_subset_create_glyph_names (font_subset); + if (_cairo_int_status_is_error (status)) + return status; + + status = _cairo_ps_surface_emit_type1_font_subset (surface, font_subset); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + status = _cairo_ps_surface_emit_truetype_font_subset (surface, font_subset); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + status = _cairo_ps_surface_emit_type1_font_fallback (surface, font_subset); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + ASSERT_NOT_REACHED; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_ps_surface_emit_scaled_font_subset (cairo_scaled_font_subset_t *font_subset, + void *closure) +{ + cairo_ps_surface_t *surface = closure; + cairo_int_status_t status; + + status = _cairo_scaled_font_subset_create_glyph_names (font_subset); + if (_cairo_int_status_is_error (status)) + return status; + + status = _cairo_ps_surface_emit_type3_font_subset (surface, font_subset); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + ASSERT_NOT_REACHED; + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_ps_surface_emit_font_subsets (cairo_ps_surface_t *surface) +{ + cairo_status_t status; + +#if DEBUG_PS + _cairo_output_stream_printf (surface->final_stream, + "%% _cairo_ps_surface_emit_font_subsets\n"); +#endif + + status = _cairo_scaled_font_subsets_foreach_unscaled (surface->font_subsets, + _cairo_ps_surface_emit_unscaled_font_subset, + surface); + if (unlikely (status)) + return status; + + return _cairo_scaled_font_subsets_foreach_scaled (surface->font_subsets, + _cairo_ps_surface_emit_scaled_font_subset, + surface); +} + +static cairo_int_status_t +_cairo_ps_surface_emit_forms (cairo_ps_surface_t *surface) +{ + _cairo_hash_table_foreach (surface->forms, + _cairo_ps_form_emit, + surface); + return surface->base.status; +} + +static cairo_status_t +_cairo_ps_surface_emit_body (cairo_ps_surface_t *surface) +{ + char buf[4096]; + int n; + + if (ferror (surface->tmpfile) != 0) + return _cairo_error (CAIRO_STATUS_TEMP_FILE_ERROR); + + rewind (surface->tmpfile); + while ((n = fread (buf, 1, sizeof (buf), surface->tmpfile)) > 0) + _cairo_output_stream_write (surface->final_stream, buf, n); + + if (ferror (surface->tmpfile) != 0) + return _cairo_error (CAIRO_STATUS_TEMP_FILE_ERROR); + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_ps_surface_emit_footer (cairo_ps_surface_t *surface) +{ + _cairo_output_stream_printf (surface->final_stream, + "%%%%Trailer\n"); + + if (surface->eps) { + _cairo_output_stream_printf (surface->final_stream, + "end\n"); + } + + _cairo_output_stream_printf (surface->final_stream, + "%%%%EOF\n"); +} + +static cairo_bool_t +_path_covers_bbox (cairo_ps_surface_t *surface, + cairo_path_fixed_t *path) +{ + cairo_box_t box; + + if (_cairo_path_fixed_is_box (path, &box)) { + cairo_rectangle_int_t rect; + + _cairo_box_round_to_rectangle (&box, &rect); + + /* skip trivial whole-page clips */ + if (_cairo_rectangle_intersect (&rect, &surface->surface_extents)) { + if (rect.x == surface->surface_extents.x && + rect.width == surface->surface_extents.width && + rect.y == surface->surface_extents.y && + rect.height == surface->surface_extents.height) + { + return TRUE; + } + } + } + + return FALSE; +} + +static cairo_status_t +_cairo_ps_surface_clipper_intersect_clip_path (cairo_surface_clipper_t *clipper, + cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_ps_surface_t *surface = cairo_container_of (clipper, + cairo_ps_surface_t, + clipper); + cairo_output_stream_t *stream = surface->stream; + cairo_status_t status; + + assert (surface->paginated_mode != CAIRO_PAGINATED_MODE_ANALYZE); + +#if DEBUG_PS + _cairo_output_stream_printf (stream, + "%% _cairo_ps_surface_intersect_clip_path\n"); +#endif + + if (path == NULL) { + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (stream, "Q q\n"); + + surface->current_pattern_is_solid_color = FALSE; + _cairo_pdf_operators_reset (&surface->pdf_operators); + + return CAIRO_STATUS_SUCCESS; + } + + if (_path_covers_bbox (surface, path)) + return CAIRO_STATUS_SUCCESS; + + return _cairo_pdf_operators_clip (&surface->pdf_operators, + path, + fill_rule); +} + +/* PLRM specifies a tolerance of 5 points when matching page sizes */ +static cairo_bool_t +_ps_page_dimension_equal (int a, int b) +{ + return (abs (a - b) < 5); +} + +static const char * +_cairo_ps_surface_get_page_media (cairo_ps_surface_t *surface) +{ + int width, height, i; + char buf[50]; + cairo_page_media_t *page; + const char *page_name; + + width = _cairo_lround (surface->width); + height = _cairo_lround (surface->height); + + /* search previously used page sizes */ + cairo_list_foreach_entry (page, cairo_page_media_t, &surface->document_media, link) { + if (_ps_page_dimension_equal (width, page->width) && + _ps_page_dimension_equal (height, page->height)) + return page->name; + } + + /* search list of standard page sizes */ + page_name = NULL; + for (i = 0; i < ARRAY_LENGTH (_cairo_page_standard_media); i++) { + if (_ps_page_dimension_equal (width, _cairo_page_standard_media[i].width) && + _ps_page_dimension_equal (height, _cairo_page_standard_media[i].height)) + { + page_name = _cairo_page_standard_media[i].name; + width = _cairo_page_standard_media[i].width; + height = _cairo_page_standard_media[i].height; + break; + } + } + + page = _cairo_calloc (sizeof (cairo_page_media_t)); + if (unlikely (page == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return NULL; + } + + if (page_name) { + page->name = strdup (page_name); + } else { + snprintf (buf, sizeof (buf), "%dx%dmm", + (int) _cairo_lround (surface->width * 25.4/72), + (int) _cairo_lround (surface->height * 25.4/72)); + page->name = strdup (buf); + } + + if (unlikely (page->name == NULL)) { + free (page); + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return NULL; + } + + page->width = width; + page->height = height; + cairo_list_add_tail (&page->link, &surface->document_media); + + return page->name; +} + +static cairo_surface_t * +_cairo_ps_surface_create_for_stream_internal (cairo_output_stream_t *stream, + double width, + double height) +{ + cairo_status_t status, status_ignored; + cairo_ps_surface_t *surface; + + surface = _cairo_calloc (sizeof (cairo_ps_surface_t)); + if (unlikely (surface == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP; + } + + _cairo_surface_init (&surface->base, + &cairo_ps_surface_backend, + NULL, /* device */ + CAIRO_CONTENT_COLOR_ALPHA, + TRUE); /* is_vector */ + + surface->final_stream = stream; + + surface->tmpfile = _cairo_tmpfile (); + if (surface->tmpfile == NULL) { + switch (errno) { + case ENOMEM: + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + break; + default: + status = _cairo_error (CAIRO_STATUS_TEMP_FILE_ERROR); + break; + } + goto CLEANUP_SURFACE; + } + + surface->stream = _cairo_output_stream_create_for_file (surface->tmpfile); + status = _cairo_output_stream_get_status (surface->stream); + if (unlikely (status)) + goto CLEANUP_OUTPUT_STREAM; + + surface->font_subsets = _cairo_scaled_font_subsets_create_simple (); + if (unlikely (surface->font_subsets == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_OUTPUT_STREAM; + } + + _cairo_scaled_font_subsets_enable_latin_subset (surface->font_subsets, TRUE); + surface->has_creation_date = FALSE; + surface->eps = FALSE; + surface->ps_level = CAIRO_PS_LEVEL_3; + surface->ps_level_used = CAIRO_PS_LEVEL_2; + surface->width = width; + surface->height = height; + cairo_matrix_init (&surface->cairo_to_ps, 1, 0, 0, 1, 0, 0); + surface->surface_extents.x = 0; + surface->surface_extents.y = 0; + surface->surface_extents.width = ceil (surface->width); + surface->surface_extents.height = ceil (surface->height); + surface->surface_bounded = TRUE; + surface->paginated_mode = CAIRO_PAGINATED_MODE_ANALYZE; + surface->force_fallbacks = FALSE; + surface->content = CAIRO_CONTENT_COLOR_ALPHA; + surface->current_pattern_is_solid_color = FALSE; + surface->document_bbox_p1.x = 0; + surface->document_bbox_p1.y = 0; + surface->document_bbox_p2.x = 0; + surface->document_bbox_p2.y = 0; + surface->total_form_size = 0; + surface->contains_eps = FALSE; + surface->paint_proc = FALSE; + + _cairo_surface_clipper_init (&surface->clipper, + _cairo_ps_surface_clipper_intersect_clip_path); + + _cairo_pdf_operators_init (&surface->pdf_operators, + surface->stream, + &surface->cairo_to_ps, + surface->font_subsets, + TRUE); + surface->num_pages = 0; + + cairo_list_init (&surface->document_media); + _cairo_array_init (&surface->dsc_header_comments, sizeof (char *)); + _cairo_array_init (&surface->dsc_setup_comments, sizeof (char *)); + _cairo_array_init (&surface->dsc_page_setup_comments, sizeof (char *)); + _cairo_array_init (&surface->recording_surf_stack, sizeof (unsigned int)); + + surface->num_forms = 0; + surface->forms = _cairo_hash_table_create (_cairo_ps_form_equal); + if (unlikely (surface->forms == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_FONT_SUBSETS; + } + + surface->dsc_comment_target = &surface->dsc_header_comments; + + surface->paginated_surface = _cairo_paginated_surface_create ( + &surface->base, + CAIRO_CONTENT_COLOR_ALPHA, + &cairo_ps_surface_paginated_backend); + status = surface->paginated_surface->status; + if (status == CAIRO_STATUS_SUCCESS) { + /* paginated keeps the only reference to surface now, drop ours */ + cairo_surface_destroy (&surface->base); + return surface->paginated_surface; + } + + CLEANUP_FONT_SUBSETS: + _cairo_scaled_font_subsets_destroy (surface->font_subsets); + CLEANUP_OUTPUT_STREAM: + status_ignored = _cairo_output_stream_destroy (surface->stream); + fclose (surface->tmpfile); + CLEANUP_SURFACE: + free (surface); + CLEANUP: + /* destroy stream on behalf of caller */ + status_ignored = _cairo_output_stream_destroy (stream); + + return _cairo_surface_create_in_error (status); +} + +/** + * cairo_ps_surface_create: + * @filename: a filename for the PS output (must be writable), %NULL may be + * used to specify no output. This will generate a PS surface that + * may be queried and used as a source, without generating a + * temporary file. + * @width_in_points: width of the surface, in points (1 point == 1/72.0 inch) + * @height_in_points: height of the surface, in points (1 point == 1/72.0 inch) + * + * Creates a PostScript surface of the specified size in points to be + * written to @filename. See cairo_ps_surface_create_for_stream() for + * a more flexible mechanism for handling the PostScript output than + * simply writing it to a named file. + * + * Note that the size of individual pages of the PostScript output can + * vary. See cairo_ps_surface_set_size(). + * + * Return value: a pointer to the newly created surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if an error such as out of memory + * occurs. You can use cairo_surface_status() to check for this. + * + * Since: 1.2 + **/ +cairo_surface_t * +cairo_ps_surface_create (const char *filename, + double width_in_points, + double height_in_points) +{ + cairo_output_stream_t *stream; + + stream = _cairo_output_stream_create_for_filename (filename); + if (_cairo_output_stream_get_status (stream)) + return _cairo_surface_create_in_error (_cairo_output_stream_destroy (stream)); + + return _cairo_ps_surface_create_for_stream_internal (stream, + width_in_points, + height_in_points); +} + +/** + * cairo_ps_surface_create_for_stream: + * @write_func: a #cairo_write_func_t to accept the output data, may be %NULL + * to indicate a no-op @write_func. With a no-op @write_func, + * the surface may be queried or used as a source without + * generating any temporary files. + * @closure: the closure argument for @write_func + * @width_in_points: width of the surface, in points (1 point == 1/72.0 inch) + * @height_in_points: height of the surface, in points (1 point == 1/72.0 inch) + * + * Creates a PostScript surface of the specified size in points to be + * written incrementally to the stream represented by @write_func and + * @closure. See cairo_ps_surface_create() for a more convenient way + * to simply direct the PostScript output to a named file. + * + * Note that the size of individual pages of the PostScript + * output can vary. See cairo_ps_surface_set_size(). + * + * Return value: a pointer to the newly created surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if an error such as out of memory + * occurs. You can use cairo_surface_status() to check for this. + * + * Since: 1.2 + **/ +cairo_surface_t * +cairo_ps_surface_create_for_stream (cairo_write_func_t write_func, + void *closure, + double width_in_points, + double height_in_points) +{ + cairo_output_stream_t *stream; + + stream = _cairo_output_stream_create (write_func, NULL, closure); + if (_cairo_output_stream_get_status (stream)) + return _cairo_surface_create_in_error (_cairo_output_stream_destroy (stream)); + + return _cairo_ps_surface_create_for_stream_internal (stream, + width_in_points, + height_in_points); +} + +static cairo_bool_t +_cairo_surface_is_ps (cairo_surface_t *surface) +{ + return surface->backend == &cairo_ps_surface_backend; +} + +/* If the abstract_surface is a paginated surface, and that paginated + * surface's target is a ps_surface, then set ps_surface to that + * target. Otherwise return FALSE. + */ +static cairo_bool_t +_extract_ps_surface (cairo_surface_t *surface, + cairo_bool_t set_error_on_failure, + cairo_ps_surface_t **ps_surface) +{ + cairo_surface_t *target; + + if (surface->status) + return FALSE; + if (surface->finished) { + if (set_error_on_failure) + _cairo_surface_set_error (surface, + _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return FALSE; + } + + if (! _cairo_surface_is_paginated (surface)) { + if (set_error_on_failure) + _cairo_surface_set_error (surface, + _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + return FALSE; + } + + target = _cairo_paginated_surface_get_target (surface); + if (target->status) { + if (set_error_on_failure) + _cairo_surface_set_error (surface, target->status); + return FALSE; + } + if (target->finished) { + if (set_error_on_failure) + _cairo_surface_set_error (surface, + _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return FALSE; + } + + if (! _cairo_surface_is_ps (target)) { + if (set_error_on_failure) + _cairo_surface_set_error (surface, + _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + return FALSE; + } + + *ps_surface = (cairo_ps_surface_t *) target; + return TRUE; +} + +/** + * cairo_ps_surface_restrict_to_level: + * @surface: a PostScript #cairo_surface_t + * @level: PostScript level + * + * Restricts the generated PostSript file to @level. See + * cairo_ps_get_levels() for a list of available level values that + * can be used here. + * + * This function should only be called before any drawing operations + * have been performed on the given surface. The simplest way to do + * this is to call this function immediately after creating the + * surface. + * + * Since: 1.6 + **/ +void +cairo_ps_surface_restrict_to_level (cairo_surface_t *surface, + cairo_ps_level_t level) +{ + cairo_ps_surface_t *ps_surface = NULL; + + if (! _extract_ps_surface (surface, TRUE, &ps_surface)) + return; + + if (level < CAIRO_PS_LEVEL_LAST) + ps_surface->ps_level = level; +} + +/** + * cairo_ps_get_levels: + * @levels: supported level list + * @num_levels: list length + * + * Used to retrieve the list of supported levels. See + * cairo_ps_surface_restrict_to_level(). + * + * Since: 1.6 + **/ +void +cairo_ps_get_levels (cairo_ps_level_t const **levels, + int *num_levels) +{ + if (levels != NULL) + *levels = _cairo_ps_levels; + + if (num_levels != NULL) + *num_levels = CAIRO_PS_LEVEL_LAST; +} + +/** + * cairo_ps_level_to_string: + * @level: a level id + * + * Get the string representation of the given @level id. This function + * will return %NULL if @level id isn't valid. See cairo_ps_get_levels() + * for a way to get the list of valid level ids. + * + * Return value: the string associated to given level. + * + * Since: 1.6 + **/ +const char * +cairo_ps_level_to_string (cairo_ps_level_t level) +{ + if (level >= CAIRO_PS_LEVEL_LAST) + return NULL; + + return _cairo_ps_level_strings[level]; +} + +/** + * cairo_ps_surface_set_eps: + * @surface: a PostScript #cairo_surface_t + * @eps: %TRUE to output EPS format PostScript + * + * If @eps is %TRUE, the PostScript surface will output Encapsulated + * PostScript. + * + * This function should only be called before any drawing operations + * have been performed on the current page. The simplest way to do + * this is to call this function immediately after creating the + * surface. An Encapsulated PostScript file should never contain more + * than one page. + * + * Since: 1.6 + **/ +void +cairo_ps_surface_set_eps (cairo_surface_t *surface, + cairo_bool_t eps) +{ + cairo_ps_surface_t *ps_surface = NULL; + + if (! _extract_ps_surface (surface, TRUE, &ps_surface)) + return; + + ps_surface->eps = eps; +} + +/** + * cairo_ps_surface_get_eps: + * @surface: a PostScript #cairo_surface_t + * + * Check whether the PostScript surface will output Encapsulated PostScript. + * + * Return value: %TRUE if the surface will output Encapsulated PostScript. + * + * Since: 1.6 + **/ +cairo_public cairo_bool_t +cairo_ps_surface_get_eps (cairo_surface_t *surface) +{ + cairo_ps_surface_t *ps_surface = NULL; + + if (! _extract_ps_surface (surface, FALSE, &ps_surface)) + return FALSE; + + return ps_surface->eps; +} + +/** + * cairo_ps_surface_set_size: + * @surface: a PostScript #cairo_surface_t + * @width_in_points: new surface width, in points (1 point == 1/72.0 inch) + * @height_in_points: new surface height, in points (1 point == 1/72.0 inch) + * + * Changes the size of a PostScript surface for the current (and + * subsequent) pages. + * + * This function should only be called before any drawing operations + * have been performed on the current page. The simplest way to do + * this is to call this function immediately after creating the + * surface or immediately after completing a page with either + * cairo_show_page() or cairo_copy_page(). + * + * Since: 1.2 + **/ +void +cairo_ps_surface_set_size (cairo_surface_t *surface, + double width_in_points, + double height_in_points) +{ + cairo_ps_surface_t *ps_surface = NULL; + cairo_status_t status; + + if (! _extract_ps_surface (surface, TRUE, &ps_surface)) + return; + + ps_surface->width = width_in_points; + ps_surface->height = height_in_points; + cairo_matrix_init (&ps_surface->cairo_to_ps, 1, 0, 0, 1, 0, 0); + ps_surface->surface_extents.x = 0; + ps_surface->surface_extents.y = 0; + ps_surface->surface_extents.width = ceil (ps_surface->width); + ps_surface->surface_extents.height = ceil (ps_surface->height); + _cairo_pdf_operators_set_cairo_to_pdf_matrix (&ps_surface->pdf_operators, + &ps_surface->cairo_to_ps); + status = _cairo_paginated_surface_set_size (ps_surface->paginated_surface, + width_in_points, + height_in_points); + if (status) + status = _cairo_surface_set_error (surface, status); +} + +/** + * cairo_ps_surface_dsc_comment: + * @surface: a PostScript #cairo_surface_t + * @comment: a comment string to be emitted into the PostScript output + * + * Emit a comment into the PostScript output for the given surface. + * + * The comment is expected to conform to the PostScript Language + * Document Structuring Conventions (DSC). Please see that manual for + * details on the available comments and their meanings. In + * particular, the \%\%IncludeFeature comment allows a + * device-independent means of controlling printer device features. So + * the PostScript Printer Description Files Specification will also be + * a useful reference. + * + * The comment string must begin with a percent character (\%) and the + * total length of the string (including any initial percent + * characters) must not exceed 255 characters. Violating either of + * these conditions will place @surface into an error state. But + * beyond these two conditions, this function will not enforce + * conformance of the comment with any particular specification. + * + * The comment string must not contain any newline characters. + * + * The DSC specifies different sections in which particular comments + * can appear. This function provides for comments to be emitted + * within three sections: the header, the Setup section, and the + * PageSetup section. Comments appearing in the first two sections + * apply to the entire document while comments in the BeginPageSetup + * section apply only to a single page. + * + * For comments to appear in the header section, this function should + * be called after the surface is created, but before a call to + * cairo_ps_surface_dsc_begin_setup(). + * + * For comments to appear in the Setup section, this function should + * be called after a call to cairo_ps_surface_dsc_begin_setup() but + * before a call to cairo_ps_surface_dsc_begin_page_setup(). + * + * For comments to appear in the PageSetup section, this function + * should be called after a call to + * cairo_ps_surface_dsc_begin_page_setup(). + * + * Note that it is only necessary to call + * cairo_ps_surface_dsc_begin_page_setup() for the first page of any + * surface. After a call to cairo_show_page() or cairo_copy_page() + * comments are unambiguously directed to the PageSetup section of the + * current page. But it doesn't hurt to call this function at the + * beginning of every page as that consistency may make the calling + * code simpler. + * + * As a final note, cairo automatically generates several comments on + * its own. As such, applications must not manually generate any of + * the following comments: + * + * Header section: \%!PS-Adobe-3.0, \%\%Creator, \%\%CreationDate, \%\%Pages, + * \%\%BoundingBox, \%\%DocumentData, \%\%LanguageLevel, \%\%EndComments. + * + * Setup section: \%\%BeginSetup, \%\%EndSetup + * + * PageSetup section: \%\%BeginPageSetup, \%\%PageBoundingBox, \%\%EndPageSetup. + * + * Other sections: \%\%BeginProlog, \%\%EndProlog, \%\%Page, \%\%Trailer, \%\%EOF + * + * Here is an example sequence showing how this function might be used: + * + * + * cairo_surface_t *surface = cairo_ps_surface_create (filename, width, height); + * ... + * cairo_ps_surface_dsc_comment (surface, "%%Title: My excellent document"); + * cairo_ps_surface_dsc_comment (surface, "%%Copyright: Copyright (C) 2006 Cairo Lover") + * ... + * cairo_ps_surface_dsc_begin_setup (surface); + * cairo_ps_surface_dsc_comment (surface, "%%IncludeFeature: *MediaColor White"); + * ... + * cairo_ps_surface_dsc_begin_page_setup (surface); + * cairo_ps_surface_dsc_comment (surface, "%%IncludeFeature: *PageSize A3"); + * cairo_ps_surface_dsc_comment (surface, "%%IncludeFeature: *InputSlot LargeCapacity"); + * cairo_ps_surface_dsc_comment (surface, "%%IncludeFeature: *MediaType Glossy"); + * cairo_ps_surface_dsc_comment (surface, "%%IncludeFeature: *MediaColor Blue"); + * ... draw to first page here .. + * cairo_show_page (cr); + * ... + * cairo_ps_surface_dsc_comment (surface, "%%IncludeFeature: *PageSize A5"); + * ... + * + * + * Since: 1.2 + **/ +void +cairo_ps_surface_dsc_comment (cairo_surface_t *surface, + const char *comment) +{ + cairo_ps_surface_t *ps_surface = NULL; + cairo_status_t status; + char *comment_copy; + + if (! _extract_ps_surface (surface, TRUE, &ps_surface)) + return; + + /* A couple of sanity checks on the comment value. */ + if (comment == NULL) { + status = _cairo_surface_set_error (surface, CAIRO_STATUS_NULL_POINTER); + return; + } + + if (comment[0] != '%' || strlen (comment) > 255) { + status = _cairo_surface_set_error (surface, CAIRO_STATUS_INVALID_DSC_COMMENT); + return; + } + + /* Then, copy the comment and store it in the appropriate array. */ + comment_copy = strdup (comment); + if (unlikely (comment_copy == NULL)) { + status = _cairo_surface_set_error (surface, CAIRO_STATUS_NO_MEMORY); + return; + } + + status = _cairo_array_append (ps_surface->dsc_comment_target, &comment_copy); + if (unlikely (status)) { + free (comment_copy); + status = _cairo_surface_set_error (surface, status); + return; + } +} + +/** + * cairo_ps_surface_dsc_begin_setup: + * @surface: a PostScript #cairo_surface_t + * + * This function indicates that subsequent calls to + * cairo_ps_surface_dsc_comment() should direct comments to the Setup + * section of the PostScript output. + * + * This function should be called at most once per surface, and must + * be called before any call to cairo_ps_surface_dsc_begin_page_setup() + * and before any drawing is performed to the surface. + * + * See cairo_ps_surface_dsc_comment() for more details. + * + * Since: 1.2 + **/ +void +cairo_ps_surface_dsc_begin_setup (cairo_surface_t *surface) +{ + cairo_ps_surface_t *ps_surface = NULL; + + if (! _extract_ps_surface (surface, TRUE, &ps_surface)) + return; + + if (ps_surface->dsc_comment_target == &ps_surface->dsc_header_comments) + ps_surface->dsc_comment_target = &ps_surface->dsc_setup_comments; +} + +/** + * cairo_ps_surface_dsc_begin_page_setup: + * @surface: a PostScript #cairo_surface_t + * + * This function indicates that subsequent calls to + * cairo_ps_surface_dsc_comment() should direct comments to the + * PageSetup section of the PostScript output. + * + * This function call is only needed for the first page of a + * surface. It should be called after any call to + * cairo_ps_surface_dsc_begin_setup() and before any drawing is + * performed to the surface. + * + * See cairo_ps_surface_dsc_comment() for more details. + * + * Since: 1.2 + **/ +void +cairo_ps_surface_dsc_begin_page_setup (cairo_surface_t *surface) +{ + cairo_ps_surface_t *ps_surface = NULL; + + if (! _extract_ps_surface (surface, TRUE, &ps_surface)) + return; + + if (ps_surface->dsc_comment_target == &ps_surface->dsc_header_comments || + ps_surface->dsc_comment_target == &ps_surface->dsc_setup_comments) + { + ps_surface->dsc_comment_target = &ps_surface->dsc_page_setup_comments; + } +} + +static cairo_status_t +_cairo_ps_surface_finish (void *abstract_surface) +{ + cairo_status_t status, status2; + cairo_ps_surface_t *surface = abstract_surface; + int i, num_comments; + char **comments; + + status = surface->base.status; + if (unlikely (status)) + goto CLEANUP; + + _cairo_ps_surface_emit_header (surface); + + _cairo_output_stream_printf (surface->final_stream, + "%%%%BeginSetup\n"); + + num_comments = _cairo_array_num_elements (&surface->dsc_setup_comments); + if (num_comments) { + comments = _cairo_array_index (&surface->dsc_setup_comments, 0); + for (i = 0; i < num_comments; i++) { + _cairo_output_stream_printf (surface->final_stream, + "%s\n", comments[i]); + free (comments[i]); + comments[i] = NULL; + } + } + + status = _cairo_ps_surface_emit_font_subsets (surface); + if (unlikely (status)) + goto CLEANUP; + + status = _cairo_ps_surface_emit_forms (surface); + if (unlikely (status)) + goto CLEANUP; + + _cairo_output_stream_printf (surface->final_stream, + "%%%%EndSetup\n"); + + status = _cairo_ps_surface_emit_body (surface); + if (unlikely (status)) + goto CLEANUP; + + _cairo_ps_surface_emit_footer (surface); + +CLEANUP: + _cairo_hash_table_foreach (surface->forms, + _cairo_ps_form_pluck, + surface->forms); + _cairo_hash_table_destroy (surface->forms); + _cairo_scaled_font_subsets_destroy (surface->font_subsets); + + status2 = _cairo_output_stream_destroy (surface->stream); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + + fclose (surface->tmpfile); + + status2 = _cairo_output_stream_destroy (surface->final_stream); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + + while (! cairo_list_is_empty (&surface->document_media)) { + cairo_page_media_t *page; + + page = cairo_list_first_entry (&surface->document_media, + cairo_page_media_t, + link); + cairo_list_del (&page->link); + free (page->name); + free (page); + } + + num_comments = _cairo_array_num_elements (&surface->dsc_header_comments); + comments = _cairo_array_index (&surface->dsc_header_comments, 0); + for (i = 0; i < num_comments; i++) + free (comments[i]); + _cairo_array_fini (&surface->dsc_header_comments); + + num_comments = _cairo_array_num_elements (&surface->dsc_setup_comments); + comments = _cairo_array_index (&surface->dsc_setup_comments, 0); + for (i = 0; i < num_comments; i++) + free (comments[i]); + _cairo_array_fini (&surface->dsc_setup_comments); + + num_comments = _cairo_array_num_elements (&surface->dsc_page_setup_comments); + comments = _cairo_array_index (&surface->dsc_page_setup_comments, 0); + for (i = 0; i < num_comments; i++) + free (comments[i]); + _cairo_array_fini (&surface->dsc_page_setup_comments); + + _cairo_array_fini (&surface->recording_surf_stack); + + _cairo_surface_clipper_reset (&surface->clipper); + + return status; +} + +static cairo_int_status_t +_cairo_ps_surface_start_page (void *abstract_surface) +{ + cairo_ps_surface_t *surface = abstract_surface; + + /* Increment before print so page numbers start at 1. */ + surface->num_pages++; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_ps_surface_show_page (void *abstract_surface) +{ + cairo_ps_surface_t *surface = abstract_surface; + cairo_int_status_t status; + + if (surface->clipper.clip != NULL) + _cairo_surface_clipper_reset (&surface->clipper); + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->stream, + "Q Q\n" + "showpage\n"); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +color_is_gray (double red, double green, double blue) +{ + const double epsilon = 0.00001; + + return (fabs (red - green) < epsilon && + fabs (red - blue) < epsilon); +} + +/** + * _cairo_ps_surface_acquire_source_surface_from_pattern: + * @surface: [in] the ps surface + * @pattern: [in] A #cairo_pattern_t of type SURFACE or RASTER_SOURCE to use + * as the source + * @extents: [in] extents of the operation that is using this source + * @src_surface_extents: [out] return source surface extents + * @src_surface_bounded: [out] return TRUE if source surface is bounded + * @src_op_extents: [out] return operation extents in source space + * @source_surface: [out] returns surface of type image surface or recording surface + * @x_offset: [out] return x offset of surface + * @y_offset: [out] return y offset of surface + * + * Acquire source surface or raster source pattern. + **/ +static cairo_status_t +_cairo_ps_surface_acquire_source_surface_from_pattern ( + cairo_ps_surface_t *surface, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents, + cairo_rectangle_int_t *src_surface_extents, + cairo_bool_t *src_surface_bounded, + cairo_rectangle_int_t *src_op_extents, + cairo_surface_t **source_surface, + double *x_offset, + double *y_offset) +{ + cairo_status_t status; + cairo_box_t bbox; + + *x_offset = 0; + *y_offset = 0; + + /* get the operation extents in pattern space */ + _cairo_box_from_rectangle (&bbox, extents); + _cairo_matrix_transform_bounding_box_fixed (&pattern->matrix, &bbox, NULL); + _cairo_box_round_to_rectangle (&bbox, src_op_extents); + + if (pattern->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) { + cairo_surface_t *surf; + + surf = _cairo_raster_source_pattern_acquire (pattern, &surface->base, src_op_extents); + if (!surf) + return CAIRO_INT_STATUS_UNSUPPORTED; + + *src_surface_bounded = _cairo_surface_get_extents (surf, src_surface_extents); + cairo_surface_get_device_offset (surf, x_offset, y_offset); + *source_surface = surf; + } else if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_t *surf = NULL; + + *source_surface = ((cairo_surface_pattern_t *) pattern)->surface; + surf = *source_surface; + *src_surface_bounded = _cairo_surface_get_extents (surf, src_surface_extents); + if (surf->type == CAIRO_SURFACE_TYPE_RECORDING) { + if (_cairo_surface_is_snapshot (surf)) + surf = _cairo_surface_snapshot_get_target (surf); + + if (surf->backend->type == CAIRO_SURFACE_TYPE_SUBSURFACE) { + cairo_surface_subsurface_t *sub = (cairo_surface_subsurface_t *) surf; + + *src_surface_extents = sub->extents; + *src_surface_bounded = TRUE; + *x_offset = -sub->extents.x; + *y_offset = -sub->extents.y; + } + + cairo_surface_destroy (surf); + } else if (surf->type != CAIRO_SURFACE_TYPE_IMAGE) { + cairo_image_surface_t *image; + void *image_extra; + + status = _cairo_surface_acquire_source_image (surf, &image, &image_extra); + if (unlikely (status)) + return status; + + *src_surface_bounded = _cairo_surface_get_extents (&image->base, src_surface_extents); + _cairo_surface_release_source_image (surf, image, image_extra); + } + } else { + ASSERT_NOT_REACHED; + } + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_ps_surface_release_source_surface_from_pattern (cairo_ps_surface_t *surface, + const cairo_pattern_t *pattern, + cairo_surface_t *source_surface) +{ + if (pattern->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) + _cairo_raster_source_pattern_release (pattern, source_surface); +} + +/** + * _cairo_ps_surface_create_padded_image_from_image: + * @surface: the ps surface + * @source: The source image + * @extents: extents of the operation that is using this source + * @image: returns the padded image or NULL if padding not required to fill @extents + * @image_extents: returns extents of padded image. These extents in are in source image space. + * + * Creates a padded image if the source image does not fill the extents. + **/ +static cairo_status_t +_cairo_ps_surface_create_padded_image_from_image (cairo_ps_surface_t *surface, + cairo_image_surface_t *source, + const cairo_matrix_t *source_matrix, + const cairo_rectangle_int_t *extents, + cairo_image_surface_t **image, + cairo_rectangle_int_t *image_extents) +{ + cairo_box_t box; + cairo_rectangle_int_t rect; + cairo_surface_t *pad_image; + cairo_surface_pattern_t pad_pattern; + int w, h; + cairo_int_status_t status; + + /* get the operation extents in pattern space */ + _cairo_box_from_rectangle (&box, extents); + _cairo_matrix_transform_bounding_box_fixed (source_matrix, &box, NULL); + _cairo_box_round_to_rectangle (&box, &rect); + + /* Check if image needs padding to fill extents. */ + w = source->width; + h = source->height; + if (_cairo_fixed_integer_ceil(box.p1.x) < 0 || + _cairo_fixed_integer_ceil(box.p1.y) < 0 || + _cairo_fixed_integer_floor(box.p2.y) > w || + _cairo_fixed_integer_floor(box.p2.y) > h) + { + pad_image = _cairo_image_surface_create_with_content (source->base.content, + rect.width, + rect.height); + if (pad_image->status) + return pad_image->status; + + _cairo_pattern_init_for_surface (&pad_pattern, &source->base); + cairo_matrix_init_translate (&pad_pattern.base.matrix, rect.x, rect.y); + pad_pattern.base.extend = CAIRO_EXTEND_PAD; + status = _cairo_surface_paint (pad_image, + CAIRO_OPERATOR_SOURCE, + &pad_pattern.base, + NULL); + _cairo_pattern_fini (&pad_pattern.base); + *image = (cairo_image_surface_t *) pad_image; + image_extents->x = rect.x; + image_extents->y = rect.y; + image_extents->width = rect.width; + image_extents->height = rect.height; + } else { + *image = NULL; + status = CAIRO_STATUS_SUCCESS; + } + + return status; +} + +static cairo_int_status_t +_cairo_ps_surface_analyze_surface_pattern_transparency (cairo_ps_surface_t *surface, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + cairo_rectangle_int_t src_surface_extents; + cairo_bool_t src_surface_bounded; + cairo_rectangle_int_t src_op_extents; + cairo_surface_t *source_surface; + double x_offset, y_offset; + cairo_image_surface_t *image; + void *image_extra; + cairo_int_status_t status; + cairo_image_transparency_t transparency; + + status = _cairo_ps_surface_acquire_source_surface_from_pattern (surface, + pattern, + extents, + &src_surface_extents, + &src_surface_bounded, + &src_op_extents, + &source_surface, + &x_offset, + &y_offset); + if (unlikely (status)) + return status; + + status = _cairo_surface_acquire_source_image (source_surface, &image, &image_extra); + if (unlikely (status)) + return status; + + if (image->base.status) + return image->base.status; + + transparency = _cairo_image_analyze_transparency (image); + switch (transparency) { + case CAIRO_IMAGE_IS_OPAQUE: + status = CAIRO_STATUS_SUCCESS; + break; + + case CAIRO_IMAGE_HAS_BILEVEL_ALPHA: + if (surface->ps_level == CAIRO_PS_LEVEL_2) { + status = CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY; + } else { + surface->ps_level_used = CAIRO_PS_LEVEL_3; + status = CAIRO_STATUS_SUCCESS; + } + break; + + case CAIRO_IMAGE_HAS_ALPHA: + status = CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY; + break; + + case CAIRO_IMAGE_UNKNOWN: + ASSERT_NOT_REACHED; + } + + _cairo_surface_release_source_image (source_surface, image, image_extra); + _cairo_ps_surface_release_source_surface_from_pattern (surface, pattern, source_surface); + + return status; +} + +static cairo_bool_t +surface_pattern_supported (const cairo_surface_pattern_t *pattern) +{ + if (pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + return TRUE; + + if (pattern->surface->backend->acquire_source_image == NULL) + return FALSE; + + /* Does an ALPHA-only source surface even make sense? Maybe, but I + * don't think it's worth the extra code to support it. */ + +/* XXX: Need to write this function here... + content = pattern->surface->content; + if (content == CAIRO_CONTENT_ALPHA) + return FALSE; +*/ + + return TRUE; +} + +static cairo_bool_t +_gradient_pattern_supported (cairo_ps_surface_t *surface, + const cairo_pattern_t *pattern) +{ + double min_alpha, max_alpha; + + if (surface->ps_level == CAIRO_PS_LEVEL_2) + return FALSE; + + /* Alpha gradients are only supported (by flattening the alpha) + * if there is no variation in the alpha across the gradient. */ + _cairo_pattern_alpha_range (pattern, &min_alpha, &max_alpha); + if (min_alpha != max_alpha) + return FALSE; + + surface->ps_level_used = CAIRO_PS_LEVEL_3; + + return TRUE; +} + +static cairo_bool_t +pattern_supported (cairo_ps_surface_t *surface, const cairo_pattern_t *pattern) +{ + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + return TRUE; + + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + case CAIRO_PATTERN_TYPE_MESH: + return _gradient_pattern_supported (surface, pattern); + + case CAIRO_PATTERN_TYPE_SURFACE: + return surface_pattern_supported ((cairo_surface_pattern_t *) pattern); + + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + return TRUE; + + default: + ASSERT_NOT_REACHED; + return FALSE; + } +} + +static cairo_bool_t +mask_supported (cairo_ps_surface_t *surface, + const cairo_pattern_t *mask, + const cairo_rectangle_int_t *extents) +{ + if (surface->ps_level == CAIRO_PS_LEVEL_2) + return FALSE; + + if (mask->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) mask; + if (surface_pattern->surface->type == CAIRO_SURFACE_TYPE_IMAGE) { + /* check if mask if opaque or bilevel alpha */ + if (_cairo_ps_surface_analyze_surface_pattern_transparency (surface, mask, extents) == CAIRO_INT_STATUS_SUCCESS) { + surface->ps_level_used = CAIRO_PS_LEVEL_3; + return TRUE; + } + } + } + + return FALSE; +} + +static cairo_int_status_t +_cairo_ps_surface_analyze_operation (cairo_ps_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *pattern, + const cairo_pattern_t *mask, + const cairo_rectangle_int_t *extents) +{ + double min_alpha; + + if (surface->force_fallbacks && + surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + if (! pattern_supported (surface, pattern)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (! (op == CAIRO_OPERATOR_SOURCE || op == CAIRO_OPERATOR_OVER)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Mask is only supported when the mask is an image with opaque or bilevel alpha. */ + if (mask && !mask_supported (surface, mask, extents)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) pattern; + + if (surface_pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) { + if (pattern->extend == CAIRO_EXTEND_PAD) { + cairo_box_t box; + cairo_rectangle_int_t rect; + cairo_rectangle_int_t rec_extents; + + /* get the operation extents in pattern space */ + _cairo_box_from_rectangle (&box, extents); + _cairo_matrix_transform_bounding_box_fixed (&pattern->matrix, &box, NULL); + _cairo_box_round_to_rectangle (&box, &rect); + + /* Check if surface needs padding to fill extents */ + if (_cairo_surface_get_extents (surface_pattern->surface, &rec_extents)) { + if (_cairo_fixed_integer_ceil(box.p1.x) < rec_extents.x || + _cairo_fixed_integer_ceil(box.p1.y) < rec_extents.y || + _cairo_fixed_integer_floor(box.p2.y) > rec_extents.x + rec_extents.width || + _cairo_fixed_integer_floor(box.p2.y) > rec_extents.y + rec_extents.height) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + } + } + return CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN; + } + } + + if (op == CAIRO_OPERATOR_SOURCE) { + if (mask) + return CAIRO_INT_STATUS_UNSUPPORTED; + else + return CAIRO_STATUS_SUCCESS; + } + + /* CAIRO_OPERATOR_OVER is only supported for opaque patterns. If + * the pattern contains transparency, we return + * CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY to the analysis + * surface. If the analysis surface determines that there is + * anything drawn under this operation, a fallback image will be + * used. Otherwise the operation will be replayed during the + * render stage and we blend the transparency into the white + * background to convert the pattern to opaque. + */ + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE || pattern->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) + return _cairo_ps_surface_analyze_surface_pattern_transparency (surface, pattern, extents); + + /* Patterns whose drawn part is opaque are directly supported; + those whose drawn part is partially transparent can be + supported by flattening the alpha. */ + _cairo_pattern_alpha_range (pattern, &min_alpha, NULL); + if (CAIRO_ALPHA_IS_OPAQUE (min_alpha)) + return CAIRO_STATUS_SUCCESS; + + return CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY; +} + +static cairo_bool_t +_cairo_ps_surface_operation_supported (cairo_ps_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *pattern, + const cairo_pattern_t *mask, + const cairo_rectangle_int_t *extents) +{ + return _cairo_ps_surface_analyze_operation (surface, op, pattern, mask, extents) != CAIRO_INT_STATUS_UNSUPPORTED; +} + +/* The "standard" implementation limit for PostScript string sizes is + * 65535 characters (see PostScript Language Reference, Appendix + * B). + */ +#define STRING_ARRAY_MAX_STRING_SIZE 65535 +#define STRING_ARRAY_MAX_COLUMN 72 + +typedef struct _string_array_stream { + cairo_output_stream_t base; + cairo_output_stream_t *output; + int column; + int string_size; + int tuple_count; + cairo_bool_t use_strings; +} string_array_stream_t; + +static cairo_status_t +_base85_string_wrap_stream_write (cairo_output_stream_t *base, + const unsigned char *data, + unsigned int length) +{ + string_array_stream_t *stream = (string_array_stream_t *) base; + unsigned char c; + + if (length == 0) + return CAIRO_STATUS_SUCCESS; + + while (length--) { + if (stream->column == 0) { + if (stream->use_strings) { + _cairo_output_stream_printf (stream->output, "<~"); + stream->column = 2; + } else { + _cairo_output_stream_printf (stream->output, " "); + stream->column = 1; + } + } + + c = *data++; + _cairo_output_stream_write (stream->output, &c, 1); + stream->column++; + + /* Base85 encodes each 4 byte tuple with a 5 ASCII character + * tuple, except for 'z' with represents 4 zero bytes. We need + * to keep track of the string length after decoding. + */ + if (c == 'z') { + stream->string_size += 4; + stream->tuple_count = 0; + } else { + if (++stream->tuple_count == 5) { + stream->string_size += 4; + stream->tuple_count = 0; + } + } + + /* Split string at tuple boundary when there is not enough + * space for another tuple */ + if (stream->use_strings && + stream->tuple_count == 0 && + stream->string_size > STRING_ARRAY_MAX_STRING_SIZE - 4) + { + _cairo_output_stream_printf (stream->output, "~>\n"); + stream->string_size = 0; + stream->column = 0; + } + if (stream->column >= STRING_ARRAY_MAX_COLUMN) { + _cairo_output_stream_printf (stream->output, "\n "); + stream->column = 1; + } + } + + return _cairo_output_stream_get_status (stream->output); +} + +static cairo_status_t +_base85_string_wrap_stream_close (cairo_output_stream_t *base) +{ + string_array_stream_t *stream = (string_array_stream_t *) base; + + if (!stream->use_strings || stream->string_size != 0) + _cairo_output_stream_printf (stream->output, "~>"); + + return _cairo_output_stream_get_status (stream->output); +} + +/* A _base85_strings_stream wraps an existing output stream. It takes + * base85 encoded data and splits it into strings each limited to + * STRING_ARRAY_MAX_STRING_SIZE bytes when decoded. Each string is + * enclosed in "<~" and "~>". + + * The string array stream is also careful to wrap the output within + * STRING_ARRAY_MAX_COLUMN columns. Wrapped lines start with a space + * in case an encoded line starts with %% which could be interpreted + * as a DSC comment. + */ +static cairo_output_stream_t * +_base85_strings_stream_create (cairo_output_stream_t *output) +{ + string_array_stream_t *stream; + + stream = _cairo_calloc (sizeof (string_array_stream_t)); + if (unlikely (stream == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_output_stream_t *) &_cairo_output_stream_nil; + } + + _cairo_output_stream_init (&stream->base, + _base85_string_wrap_stream_write, + NULL, + _base85_string_wrap_stream_close); + stream->output = output; + stream->column = 0; + stream->string_size = 0; + stream->tuple_count = 0; + stream->use_strings = TRUE; + + return &stream->base; +} + +/* A base85_wrap_stream wraps an existing output stream. It wraps the + * output within STRING_ARRAY_MAX_COLUMN columns. A base85 EOD "~>" is + * appended to the end. Wrapped lines start with a space in case an + * encoded line starts with %% which could be interpreted as a DSC + * comment. + */ +static cairo_output_stream_t * +_base85_wrap_stream_create (cairo_output_stream_t *output) +{ + string_array_stream_t *stream; + + stream = _cairo_calloc (sizeof (string_array_stream_t)); + if (unlikely (stream == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_output_stream_t *) &_cairo_output_stream_nil; + } + + _cairo_output_stream_init (&stream->base, + _base85_string_wrap_stream_write, + NULL, + _base85_string_wrap_stream_close); + stream->output = output; + stream->column = 0; + stream->string_size = 0; + stream->tuple_count = 0; + stream->use_strings = FALSE; + + return &stream->base; +} + + +/* PS Output - this section handles output of the parts of the recording + * surface we can render natively in PS. */ + +static cairo_status_t +_cairo_ps_surface_flatten_image_transparency (cairo_ps_surface_t *surface, + cairo_image_surface_t *image, + cairo_image_surface_t **opaque_image) +{ + cairo_surface_t *opaque; + cairo_surface_pattern_t pattern; + cairo_status_t status; + + opaque = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + image->width, + image->height); + if (unlikely (opaque->status)) + return opaque->status; + + if (surface->content == CAIRO_CONTENT_COLOR_ALPHA) { + status = _cairo_surface_paint (opaque, + CAIRO_OPERATOR_SOURCE, + &_cairo_pattern_white.base, + NULL); + if (unlikely (status)) { + cairo_surface_destroy (opaque); + return status; + } + } + + _cairo_pattern_init_for_surface (&pattern, &image->base); + pattern.base.filter = CAIRO_FILTER_NEAREST; + status = _cairo_surface_paint (opaque, CAIRO_OPERATOR_OVER, &pattern.base, NULL); + _cairo_pattern_fini (&pattern.base); + if (unlikely (status)) { + cairo_surface_destroy (opaque); + return status; + } + + *opaque_image = (cairo_image_surface_t *) opaque; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_ps_surface_emit_base85_string (cairo_ps_surface_t *surface, + const unsigned char *data, + unsigned long length, + cairo_ps_compress_t compress, + cairo_bool_t use_strings) +{ + cairo_output_stream_t *base85_stream, *string_array_stream, *deflate_stream; + unsigned char *data_compressed; + unsigned long data_compressed_size; + cairo_status_t status, status2; + cairo_status_t this_cannot_be_handled; + + if (use_strings) + string_array_stream = _base85_strings_stream_create (surface->stream); + else + string_array_stream = _base85_wrap_stream_create (surface->stream); + + status = _cairo_output_stream_get_status (string_array_stream); + if (unlikely (status)) + return _cairo_output_stream_destroy (string_array_stream); + + base85_stream = _cairo_base85_stream_create (string_array_stream); + status = _cairo_output_stream_get_status (base85_stream); + if (unlikely (status)) { + status2 = _cairo_output_stream_destroy (string_array_stream); + return _cairo_output_stream_destroy (base85_stream); + } + + status = 0; + switch (compress) { + case CAIRO_PS_COMPRESS_NONE: + _cairo_output_stream_write (base85_stream, data, length); + break; + + case CAIRO_PS_COMPRESS_LZW: + /* XXX: Should fix cairo-lzw to provide a stream-based interface + * instead. */ + data_compressed_size = length; + data_compressed = _cairo_lzw_compress ((unsigned char*)data, &data_compressed_size); + if (unlikely (data_compressed == NULL)) { + this_cannot_be_handled = _cairo_output_stream_destroy (string_array_stream); + this_cannot_be_handled = _cairo_output_stream_destroy (base85_stream); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + _cairo_output_stream_write (base85_stream, data_compressed, data_compressed_size); + free (data_compressed); + break; + + case CAIRO_PS_COMPRESS_DEFLATE: + deflate_stream = _cairo_deflate_stream_create (base85_stream); + if (_cairo_output_stream_get_status (deflate_stream)) { + return _cairo_output_stream_destroy (deflate_stream); + } + _cairo_output_stream_write (deflate_stream, data, length); + status = _cairo_output_stream_destroy (deflate_stream); + if (unlikely (status)) { + this_cannot_be_handled = _cairo_output_stream_destroy (string_array_stream); + this_cannot_be_handled = _cairo_output_stream_destroy (base85_stream); + return status; + } + break; + } + status = _cairo_output_stream_destroy (base85_stream); + status2 = _cairo_output_stream_destroy (string_array_stream); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + + return status; +} + +static const char * +get_interpolate (cairo_filter_t filter) +{ + const char *interpolate; + + switch (filter) { + default: + case CAIRO_FILTER_GOOD: + case CAIRO_FILTER_BEST: + case CAIRO_FILTER_BILINEAR: + interpolate = "true"; + break; + case CAIRO_FILTER_FAST: + case CAIRO_FILTER_NEAREST: + case CAIRO_FILTER_GAUSSIAN: + interpolate = "false"; + break; + } + + return interpolate; +} + +static cairo_status_t +_cairo_ps_surface_emit_image (cairo_ps_surface_t *surface, + cairo_emit_surface_mode_t mode, + cairo_emit_surface_params_t *params) +{ + cairo_status_t status; + unsigned char *data; + unsigned long data_size; + cairo_image_surface_t *ps_image; + int x, y, i, a; + cairo_image_transparency_t transparency; + cairo_bool_t use_mask; + uint32_t *pixel32; + uint8_t *pixel8; + int bit; + cairo_image_color_t color; + const char *interpolate; + cairo_ps_compress_t compress; + const char *compress_filter; + cairo_image_surface_t *image_surf; + cairo_image_surface_t *image; + void *image_extra; + + if (params->src_surface->status) + return params->src_surface->status; + + status = _cairo_surface_acquire_source_image (params->src_surface, &image_surf, &image_extra); + if (unlikely (status)) + return status; + + image = image_surf; + if (image->format != CAIRO_FORMAT_RGB24 && + image->format != CAIRO_FORMAT_ARGB32 && + image->format != CAIRO_FORMAT_A8 && + image->format != CAIRO_FORMAT_A1) + { + cairo_surface_t *surf; + cairo_surface_pattern_t pattern; + + surf = _cairo_image_surface_create_with_content (image->base.content, + image->width, + image->height); + if (surf->status) { + status = surf->status; + goto bail0; + } + + _cairo_pattern_init_for_surface (&pattern, &image->base); + status = _cairo_surface_paint (surf, + CAIRO_OPERATOR_SOURCE, &pattern.base, + NULL); + _cairo_pattern_fini (&pattern.base); + image = (cairo_image_surface_t *) surf; + if (unlikely (status)) + goto bail0; + } + ps_image = image; + interpolate = get_interpolate (params->filter); + + if (params->stencil_mask) { + use_mask = FALSE; + color = CAIRO_IMAGE_IS_MONOCHROME; + transparency = CAIRO_IMAGE_HAS_BILEVEL_ALPHA; + } else { + transparency = _cairo_image_analyze_transparency (image); + + /* PostScript can not represent the alpha channel, so we blend the + current image over a white (or black for CONTENT_COLOR + surfaces) RGB surface to eliminate it. */ + + if (params->op == CAIRO_OPERATOR_SOURCE || + transparency == CAIRO_IMAGE_HAS_ALPHA || + (transparency == CAIRO_IMAGE_HAS_BILEVEL_ALPHA && + surface->ps_level == CAIRO_PS_LEVEL_2)) + { + status = _cairo_ps_surface_flatten_image_transparency (surface, + image, + &ps_image); + if (unlikely (status)) + return status; + + use_mask = FALSE; + } else if (transparency == CAIRO_IMAGE_IS_OPAQUE) { + use_mask = FALSE; + } else { /* transparency == CAIRO_IMAGE_HAS_BILEVEL_ALPHA */ + use_mask = TRUE; + } + + color = _cairo_image_analyze_color (ps_image); + } + + /* Type 2 (mask and image interleaved) has the mask and image + * samples interleaved by row. The mask row is first, one bit per + * pixel with (bit 7 first). The row is padded to byte + * boundaries. The image data is 3 bytes per pixel RGB format. */ + switch (color) { + default: + case CAIRO_IMAGE_UNKNOWN_COLOR: + ASSERT_NOT_REACHED; + case CAIRO_IMAGE_IS_COLOR: + data_size = ps_image->width * 3; + break; + case CAIRO_IMAGE_IS_GRAYSCALE: + data_size = ps_image->width; + break; + case CAIRO_IMAGE_IS_MONOCHROME: + data_size = (ps_image->width + 7)/8; + break; + } + if (use_mask) + data_size += (ps_image->width + 7)/8; + data_size *= ps_image->height; + data = _cairo_malloc (data_size); + if (unlikely (data == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto bail1; + } + + i = 0; + for (y = 0; y < ps_image->height; y++) { + if (params->stencil_mask || use_mask) { + /* mask row */ + if (ps_image->format == CAIRO_FORMAT_A1) { + pixel8 = (uint8_t *) (ps_image->data + y * ps_image->stride); + + for (x = 0; x < (ps_image->width + 7) / 8; x++, pixel8++) { + a = *pixel8; + a = CAIRO_BITSWAP8_IF_LITTLE_ENDIAN (a); + data[i++] = a; + } + } else { + pixel8 = (uint8_t *) (ps_image->data + y * ps_image->stride); + pixel32 = (uint32_t *) (ps_image->data + y * ps_image->stride); + bit = 7; + for (x = 0; x < ps_image->width; x++) { + if (ps_image->format == CAIRO_FORMAT_ARGB32) { + a = (*pixel32 & 0xff000000) >> 24; + pixel32++; + } else { + a = *pixel8; + pixel8++; + } + + if (transparency == CAIRO_IMAGE_HAS_ALPHA) { + data[i++] = a; + } else { /* transparency == CAIRO_IMAGE_HAS_BILEVEL_ALPHA or CAIRO_IMAGE_IS_OPAQUE */ + if (bit == 7) + data[i] = 0; + if (a != 0) + data[i] |= (1 << bit); + bit--; + if (bit < 0) { + bit = 7; + i++; + } + } + } + if (bit != 7) + i++; + } + } + if (params->stencil_mask) + continue; + + /* image row*/ + pixel32 = (uint32_t *) (ps_image->data + y * ps_image->stride); + bit = 7; + for (x = 0; x < ps_image->width; x++, pixel32++) { + int r, g, b; + + if (ps_image->format == CAIRO_FORMAT_ARGB32) { + /* At this point ARGB32 images are either opaque or + * bilevel alpha so we don't need to unpremultiply. */ + if (((*pixel32 & 0xff000000) >> 24) == 0) { + r = g = b = 0; + } else { + r = (*pixel32 & 0x00ff0000) >> 16; + g = (*pixel32 & 0x0000ff00) >> 8; + b = (*pixel32 & 0x000000ff) >> 0; + } + } else if (ps_image->format == CAIRO_FORMAT_RGB24) { + r = (*pixel32 & 0x00ff0000) >> 16; + g = (*pixel32 & 0x0000ff00) >> 8; + b = (*pixel32 & 0x000000ff) >> 0; + } else { + r = g = b = 0; + } + + switch (color) { + case CAIRO_IMAGE_IS_COLOR: + case CAIRO_IMAGE_UNKNOWN_COLOR: + data[i++] = r; + data[i++] = g; + data[i++] = b; + break; + + case CAIRO_IMAGE_IS_GRAYSCALE: + data[i++] = r; + break; + + case CAIRO_IMAGE_IS_MONOCHROME: + if (bit == 7) + data[i] = 0; + if (r != 0) + data[i] |= (1 << bit); + bit--; + if (bit < 0) { + bit = 7; + i++; + } + break; + } + } + if (bit != 7) + i++; + } + + if (surface->ps_level == CAIRO_PS_LEVEL_2) { + compress = CAIRO_PS_COMPRESS_LZW; + compress_filter = "LZWDecode"; + } else { + compress = CAIRO_PS_COMPRESS_DEFLATE; + compress_filter = "FlateDecode"; + surface->ps_level_used = CAIRO_PS_LEVEL_3; + } + + if (surface->paint_proc) { + /* Emit the image data as a base85-encoded string which will + * be used as the data source for the image operator later. */ + _cairo_output_stream_printf (surface->stream, + "/CairoData [\n"); + + status = _cairo_ps_surface_emit_base85_string (surface, + data, + data_size, + compress, + TRUE); + if (unlikely (status)) + goto bail2; + + _cairo_output_stream_printf (surface->stream, + "] def\n"); + _cairo_output_stream_printf (surface->stream, + "/CairoDataIndex 0 def\n"); + } else { + _cairo_output_stream_printf (surface->stream, + "/cairo_ascii85_file currentfile /ASCII85Decode filter def\n"); + } + + if (use_mask) { + _cairo_output_stream_printf (surface->stream, + "%s setcolorspace\n" + "<<\n" + " /ImageType 3\n" + " /InterleaveType 2\n" + " /DataDict <<\n" + " /ImageType 1\n" + " /Width %d\n" + " /Height %d\n" + " /Interpolate %s\n" + " /BitsPerComponent %d\n" + " /Decode [ %s ]\n", + color == CAIRO_IMAGE_IS_COLOR ? "/DeviceRGB" : "/DeviceGray", + ps_image->width, + ps_image->height, + interpolate, + color == CAIRO_IMAGE_IS_MONOCHROME ? 1 : 8, + color == CAIRO_IMAGE_IS_COLOR ? "0 1 0 1 0 1" : "0 1"); + + if (surface->paint_proc) { + _cairo_output_stream_printf (surface->stream, + " /DataSource { cairo_data_source } /%s filter\n", + compress_filter); + } else { + _cairo_output_stream_printf (surface->stream, + " /DataSource cairo_ascii85_file /%s filter\n", + compress_filter); + } + + _cairo_output_stream_printf (surface->stream, + " /ImageMatrix [ %d 0 0 %d 0 %d ]\n" + " >>\n" + " /MaskDict <<\n" + " /ImageType 1\n" + " /Width %d\n" + " /Height %d\n" + " /Interpolate %s\n" + " /BitsPerComponent 1\n" + " /Decode [ 1 0 ]\n" + " /ImageMatrix [ %d 0 0 %d 0 %d ]\n" + " >>\n" + ">>\n" + "image\n", + ps_image->width, + -ps_image->height, + ps_image->height, + ps_image->width, + ps_image->height, + interpolate, + ps_image->width, + -ps_image->height, + ps_image->height); + } else { + const char *decode; + + if (!params->stencil_mask) { + _cairo_output_stream_printf (surface->stream, + "%s setcolorspace\n", + color == CAIRO_IMAGE_IS_COLOR ? "/DeviceRGB" : "/DeviceGray"); + } + if (params->stencil_mask) + decode = "1 0"; + else if (color == CAIRO_IMAGE_IS_COLOR) + decode = "0 1 0 1 0 1"; + else + decode ="0 1"; + + _cairo_output_stream_printf (surface->stream, + "<<\n" + " /ImageType 1\n" + " /Width %d\n" + " /Height %d\n" + " /Interpolate %s\n" + " /BitsPerComponent %d\n" + " /Decode [ %s ]\n", + ps_image->width, + ps_image->height, + interpolate, + color == CAIRO_IMAGE_IS_MONOCHROME ? 1 : 8, + decode); + if (surface->paint_proc) { + _cairo_output_stream_printf (surface->stream, + " /DataSource { cairo_data_source } /%s filter\n", + compress_filter); + } else { + _cairo_output_stream_printf (surface->stream, + " /DataSource cairo_ascii85_file /%s filter\n", + compress_filter); + } + + _cairo_output_stream_printf (surface->stream, + " /ImageMatrix [ %d 0 0 %d 0 %d ]\n" + ">>\n" + "%s%s\n", + ps_image->width, + -ps_image->height, + ps_image->height, + surface->paint_proc ? "" : "cairo_", + params->stencil_mask ? "imagemask" : "image"); + } + + if (!surface->paint_proc) { + /* Emit the image data as a base85-encoded string which will + * be used as the data source for the image operator. */ + status = _cairo_ps_surface_emit_base85_string (surface, + data, + data_size, + compress, + FALSE); + _cairo_output_stream_printf (surface->stream, "\n"); + } else { + status = CAIRO_STATUS_SUCCESS; + } + +bail2: + free (data); + +bail1: + if (!use_mask && ps_image != image) + cairo_surface_destroy (&ps_image->base); + +bail0: + if (image != image_surf) + cairo_surface_destroy (&image->base); + + _cairo_surface_release_source_image (params->src_surface, image_surf, image_extra); + + return status; +} + +static cairo_int_status_t +_cairo_ps_surface_emit_jpeg_image (cairo_ps_surface_t *surface, + cairo_emit_surface_mode_t mode, + cairo_emit_surface_params_t *params) +{ + cairo_status_t status; + const unsigned char *mime_data; + unsigned long mime_data_length; + cairo_image_info_t info; + const char *colorspace; + const char *decode; + + if (unlikely (params->src_surface->status)) + return params->src_surface->status; + + cairo_surface_get_mime_data (params->src_surface, CAIRO_MIME_TYPE_JPEG, + &mime_data, &mime_data_length); + if (mime_data == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_image_info_get_jpeg_info (&info, mime_data, mime_data_length); + if (unlikely (status)) + return status; + + switch (info.num_components) { + case 1: + colorspace = "/DeviceGray"; + decode = "0 1"; + break; + case 3: + colorspace = "/DeviceRGB"; + decode = "0 1 0 1 0 1"; + break; + case 4: + colorspace = "/DeviceCMYK"; + decode = "0 1 0 1 0 1 0 1"; + break; + default: + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + /* At this point we know emitting jpeg will succeed. */ + if (mode == CAIRO_EMIT_SURFACE_ANALYZE) { + params->is_image = TRUE; + params->approx_size = mime_data_length; + return CAIRO_STATUS_SUCCESS; + } + + if (surface->paint_proc) { + /* Emit the image data as a base85-encoded string which will + * be used as the data source for the image operator later. */ + _cairo_output_stream_printf (surface->stream, + "/CairoData [\n"); + + status = _cairo_ps_surface_emit_base85_string (surface, + mime_data, + mime_data_length, + CAIRO_PS_COMPRESS_NONE, + TRUE); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->stream, + "] def\n"); + _cairo_output_stream_printf (surface->stream, + "/CairoDataIndex 0 def\n"); + } else { + _cairo_output_stream_printf (surface->stream, + "/cairo_ascii85_file currentfile /ASCII85Decode filter def\n"); + } + + _cairo_output_stream_printf (surface->stream, + "%s setcolorspace\n" + "<<\n" + " /ImageType 1\n" + " /Width %d\n" + " /Height %d\n" + " /BitsPerComponent %d\n" + " /Interpolate %s\n" + " /Decode [ %s ]\n", + colorspace, + info.width, + info.height, + info.bits_per_component, + get_interpolate (params->filter), + decode); + + if (surface->paint_proc) { + _cairo_output_stream_printf (surface->stream, + " /DataSource { cairo_data_source } /DCTDecode filter\n"); + } else { + _cairo_output_stream_printf (surface->stream, + " /DataSource cairo_ascii85_file /DCTDecode filter\n"); + } + + _cairo_output_stream_printf (surface->stream, + " /ImageMatrix [ %d 0 0 %d 0 %d ]\n" + ">>\n" + "%simage\n", + info.width, + -info.height, + info.height, + surface->paint_proc ? "" : "cairo_"); + + if (!surface->paint_proc) { + /* Emit the image data as a base85-encoded string which will + * be used as the data source for the image operator. */ + status = _cairo_ps_surface_emit_base85_string (surface, + mime_data, + mime_data_length, + CAIRO_PS_COMPRESS_NONE, + FALSE); + } + + return status; +} + +static cairo_int_status_t +_cairo_ps_surface_emit_ccitt_image (cairo_ps_surface_t *surface, + cairo_emit_surface_mode_t mode, + cairo_emit_surface_params_t *params) +{ + cairo_status_t status; + const unsigned char *ccitt_data; + unsigned long ccitt_data_len; + const unsigned char *ccitt_params_data; + unsigned long ccitt_params_data_len; + char *ccitt_params_string; + cairo_ccitt_params_t ccitt_params; + + if (unlikely (params->src_surface->status)) + return params->src_surface->status; + + cairo_surface_get_mime_data (params->src_surface, CAIRO_MIME_TYPE_CCITT_FAX, + &ccitt_data, &ccitt_data_len); + if (ccitt_data == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + cairo_surface_get_mime_data (params->src_surface, CAIRO_MIME_TYPE_CCITT_FAX_PARAMS, + &ccitt_params_data, &ccitt_params_data_len); + if (ccitt_params_data == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* ensure params_string is null terminated */ + ccitt_params_string = _cairo_strndup ((const char *)ccitt_params_data, ccitt_params_data_len); + if (unlikely (ccitt_params_string == NULL)) + return _cairo_surface_set_error (&surface->base, CAIRO_STATUS_NO_MEMORY); + + status = _cairo_tag_parse_ccitt_params (ccitt_params_string, &ccitt_params); + if (unlikely(status)) + return status; + + free (ccitt_params_string); + + if (ccitt_params.columns <= 0 || ccitt_params.rows <= 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* At this point we know emitting ccitt will succeed. */ + if (mode == CAIRO_EMIT_SURFACE_ANALYZE) { + params->is_image = TRUE; + params->approx_size = ccitt_data_len; + return CAIRO_STATUS_SUCCESS; + } + + if (surface->paint_proc) { + /* Emit the image data as a base85-encoded string which will + * be used as the data source for the image operator later. */ + _cairo_output_stream_printf (surface->stream, + "/CairoData [\n"); + + status = _cairo_ps_surface_emit_base85_string (surface, + ccitt_data, + ccitt_data_len, + CAIRO_PS_COMPRESS_NONE, + TRUE); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->stream, + "] def\n"); + _cairo_output_stream_printf (surface->stream, + "/CairoDataIndex 0 def\n"); + } else { + _cairo_output_stream_printf (surface->stream, + "/cairo_ascii85_file currentfile /ASCII85Decode filter def\n"); + } + + if (!params->stencil_mask) { + _cairo_output_stream_printf (surface->stream, + "/DeviceGray setcolorspace\n"); + } + + _cairo_output_stream_printf (surface->stream, + "<<\n" + " /ImageType 1\n" + " /Width %d\n" + " /Height %d\n" + " /BitsPerComponent 1\n" + " /Interpolate %s\n" + " /Decode [ 0 1 ]\n", + ccitt_params.columns, + ccitt_params.rows, + get_interpolate (params->filter)); + + if (surface->paint_proc) { + _cairo_output_stream_printf (surface->stream, + " /DataSource { cairo_data_source }\n"); + } else { + _cairo_output_stream_printf (surface->stream, + " /DataSource cairo_ascii85_file\n"); + } + + _cairo_output_stream_printf (surface->stream, + " << /Columns %d /Rows %d /K %d\n", + ccitt_params.columns, + ccitt_params.rows, + ccitt_params.k); + + if (ccitt_params.end_of_line) + _cairo_output_stream_printf (surface->stream, " /EndOfLine true\n"); + + if (ccitt_params.encoded_byte_align) + _cairo_output_stream_printf (surface->stream, " /EncodedByteAlign true\n"); + + if (!ccitt_params.end_of_block) + _cairo_output_stream_printf (surface->stream, " /EndOfBlock false\n"); + + if (ccitt_params.black_is_1) + _cairo_output_stream_printf (surface->stream, " /BlackIs1 true\n"); + + if (ccitt_params.damaged_rows_before_error > 0) { + _cairo_output_stream_printf (surface->stream, + " /DamagedRowsBeforeError %d\n", + ccitt_params.damaged_rows_before_error); + } + + _cairo_output_stream_printf (surface->stream, + " >> /CCITTFaxDecode filter\n"); + + _cairo_output_stream_printf (surface->stream, + " /ImageMatrix [ %d 0 0 %d 0 %d ]\n" + ">>\n" + "%s%s\n", + ccitt_params.columns, + -ccitt_params.rows, + ccitt_params.rows, + surface->paint_proc ? "" : "cairo_", + params->stencil_mask ? "imagemask" : "image"); + + if (!surface->paint_proc) { + /* Emit the image data as a base85-encoded string which will + * be used as the data source for the image operator. */ + status = _cairo_ps_surface_emit_base85_string (surface, + ccitt_data, + ccitt_data_len, + CAIRO_PS_COMPRESS_NONE, + FALSE); + } + + return status; +} + +/* The '|' character is not used in PS (including ASCII85). We can + * speed up the search by first searching for the first char before + * comparing strings. + */ +#define SUBFILE_FILTER_EOD "|EOD|" + +/* Count number of non overlapping occurrences of SUBFILE_FILTER_EOD in data. */ +static int +count_eod_strings (const unsigned char *data, unsigned long data_len) +{ + const unsigned char *p = data; + const unsigned char *end; + int first_char, len, count; + const char *eod_str = SUBFILE_FILTER_EOD; + + first_char = eod_str[0]; + len = strlen (eod_str); + p = data; + end = data + data_len - len + 1; + count = 0; + while (p < end) { + p = memchr (p, first_char, end - p); + if (!p) + break; + + if (memcmp (p, eod_str, len) == 0) { + count++; + p += len; + } + } + + return count; +} + +static cairo_status_t +_cairo_ps_surface_emit_eps (cairo_ps_surface_t *surface, + cairo_emit_surface_mode_t mode, + cairo_emit_surface_params_t *params) +{ + cairo_status_t status; + const unsigned char *eps_data = NULL; + unsigned long eps_data_len; + const unsigned char *eps_params_string = NULL; + unsigned long eps_params_string_len; + char *params_string = NULL; + cairo_eps_params_t eps_params; + cairo_matrix_t mat; + double eps_width, eps_height; + + if (unlikely (params->src_surface->status)) + return params->src_surface->status; + + /* We only embed EPS with level 3 as we may use ReusableStreamDecode and we + * don't know what level the EPS file requires. */ + if (surface->ps_level == CAIRO_PS_LEVEL_2) + return CAIRO_INT_STATUS_UNSUPPORTED; + + cairo_surface_get_mime_data (params->src_surface, CAIRO_MIME_TYPE_EPS, + &eps_data, &eps_data_len); + if (eps_data == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + cairo_surface_get_mime_data (params->src_surface, CAIRO_MIME_TYPE_EPS_PARAMS, + &eps_params_string, &eps_params_string_len); + if (eps_params_string == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* ensure params_string is null terminated */ + params_string = _cairo_strndup ((const char *)eps_params_string, eps_params_string_len); + if (unlikely (params_string == NULL)) + return _cairo_surface_set_error (&surface->base, CAIRO_STATUS_NO_MEMORY); + + status = _cairo_tag_parse_eps_params (params_string, &eps_params); + if (unlikely(status)) + return status; + + /* At this point we know emitting EPS will succeed. */ + if (mode == CAIRO_EMIT_SURFACE_ANALYZE) { + params->is_image = FALSE; + params->approx_size = eps_data_len; + surface->contains_eps = TRUE; + + /* Find number of occurrences of SUBFILE_FILTER_EOD in the EPS data. + * We will need it before emitting the data if a ReusableStream is used. + */ + params->eod_count = count_eod_strings (eps_data, eps_data_len); + return CAIRO_STATUS_SUCCESS; + } + + surface->ps_level_used = CAIRO_PS_LEVEL_3; + _cairo_output_stream_printf (surface->stream, "cairo_eps_begin\n"); + + eps_width = eps_params.bbox.p2.x - eps_params.bbox.p1.x; + eps_height = eps_params.bbox.p2.y - eps_params.bbox.p1.y; + cairo_matrix_init_translate (&mat, + params->src_surface_extents->x, + params->src_surface_extents->y); + cairo_matrix_scale (&mat, + params->src_surface_extents->width/eps_width, + params->src_surface_extents->height/eps_height); + cairo_matrix_scale (&mat, 1, -1); + cairo_matrix_translate (&mat, -eps_params.bbox.p1.x, -eps_params.bbox.p2.y); + + if (! _cairo_matrix_is_identity (&mat)) { + _cairo_output_stream_printf (surface->stream, "[ "); + _cairo_output_stream_print_matrix (surface->stream, &mat); + _cairo_output_stream_printf (surface->stream, " ] concat\n"); + } + + _cairo_output_stream_printf (surface->stream, + "%f %f %f %f rectclip\n", + eps_params.bbox.p1.x, + eps_params.bbox.p1.y, + eps_width, + eps_height); + + _cairo_output_stream_printf (surface->stream, + "%%%%BeginDocument: Document%d\n", + params->src_surface->unique_id); + _cairo_output_stream_write (surface->stream, eps_data, eps_data_len); + _cairo_output_stream_printf (surface->stream, "%%%%EndDocument"); + _cairo_output_stream_printf (surface->stream, "\ncairo_eps_end\n"); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_ps_surface_emit_recording_surface (cairo_ps_surface_t *surface, + cairo_surface_t *recording_surface, + unsigned int regions_id, + const cairo_rectangle_int_t *recording_extents, + cairo_bool_t subsurface) +{ + double old_width, old_height; + cairo_rectangle_int_t old_surface_extents; + cairo_bool_t old_surface_bounded; + cairo_matrix_t old_cairo_to_ps; + cairo_content_t old_content; + cairo_surface_clipper_t old_clipper; + cairo_int_status_t status; + cairo_surface_t *free_me = NULL; + unsigned int id; + int i, recording_surf_stack_size; + + /* Prevent infinite recursion if the recording_surface references a recording + * currently being emitted */ + recording_surf_stack_size = _cairo_array_num_elements (&surface->recording_surf_stack); + for (i = 0; i < recording_surf_stack_size; i++) { + _cairo_array_copy_element (&surface->recording_surf_stack, i, &id); + if (id == recording_surface->unique_id) + return CAIRO_STATUS_SUCCESS; + } + id = recording_surface->unique_id; + status = _cairo_array_append (&surface->recording_surf_stack, &id); + if (unlikely (status)) + return status; + + if (_cairo_surface_is_snapshot (recording_surface)) + free_me = recording_surface = _cairo_surface_snapshot_get_target (recording_surface); + + old_content = surface->content; + old_width = surface->width; + old_height = surface->height; + old_surface_extents = surface->surface_extents; + old_surface_bounded = surface->surface_bounded; + old_cairo_to_ps = surface->cairo_to_ps; + old_clipper = surface->clipper; + _cairo_surface_clipper_init (&surface->clipper, + _cairo_ps_surface_clipper_intersect_clip_path); + +#if DEBUG_PS + _cairo_output_stream_printf (surface->stream, + "%% _cairo_ps_surface_emit_recording_surface" + " x: %d, y: %d, w: %d, h: %d subsurface: %d\n", + recording_extents->x, recording_extents->y, + recording_extents->width, recording_extents->height, + subsurface); +#endif + + surface->width = recording_extents->width; + surface->height = recording_extents->height; + surface->surface_extents = *recording_extents; + surface->current_pattern_is_solid_color = FALSE; + _cairo_pdf_operators_reset (&surface->pdf_operators); + cairo_matrix_init (&surface->cairo_to_ps, 1, 0, 0, 1, 0, 0); + _cairo_pdf_operators_set_cairo_to_pdf_matrix (&surface->pdf_operators, + &surface->cairo_to_ps); + _cairo_output_stream_printf (surface->stream, " q\n"); + + if (recording_surface->content == CAIRO_CONTENT_COLOR) { + surface->content = CAIRO_CONTENT_COLOR; + _cairo_output_stream_printf (surface->stream, + " 0 g %d %d %d %d rectfill\n", + recording_extents->x, + recording_extents->y, + recording_extents->width, + recording_extents->height); + } + + status = _cairo_recording_surface_replay_region (recording_surface, + regions_id, + subsurface ? recording_extents : NULL, + &surface->base, + CAIRO_RECORDING_REGION_NATIVE); + assert (status != CAIRO_INT_STATUS_UNSUPPORTED); + if (unlikely (status)) + return status; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->stream, " Q\n"); + + _cairo_surface_clipper_reset (&surface->clipper); + surface->clipper = old_clipper; + surface->content = old_content; + surface->width = old_width; + surface->height = old_height; + surface->surface_extents = old_surface_extents; + surface->surface_bounded = old_surface_bounded; + surface->current_pattern_is_solid_color = FALSE; + _cairo_pdf_operators_reset (&surface->pdf_operators); + surface->cairo_to_ps = old_cairo_to_ps; + + _cairo_pdf_operators_set_cairo_to_pdf_matrix (&surface->pdf_operators, + &surface->cairo_to_ps); + cairo_surface_destroy (free_me); + + _cairo_array_truncate (&surface->recording_surf_stack, recording_surf_stack_size); + + return status; +} + +static void +_cairo_ps_surface_flatten_transparency (cairo_ps_surface_t *surface, + const cairo_color_t *color, + double *red, + double *green, + double *blue) +{ + *red = color->red; + *green = color->green; + *blue = color->blue; + + if (! CAIRO_COLOR_IS_OPAQUE (color)) { + *red *= color->alpha; + *green *= color->alpha; + *blue *= color->alpha; + if (surface->content == CAIRO_CONTENT_COLOR_ALPHA) { + double one_minus_alpha = 1. - color->alpha; + *red += one_minus_alpha; + *green += one_minus_alpha; + *blue += one_minus_alpha; + } + } +} + +static void +_cairo_ps_surface_emit_solid_pattern (cairo_ps_surface_t *surface, + cairo_solid_pattern_t *pattern) +{ + double red, green, blue; + + _cairo_ps_surface_flatten_transparency (surface, &pattern->color, &red, &green, &blue); + + if (color_is_gray (red, green, blue)) + _cairo_output_stream_printf (surface->stream, + "%f g\n", + red); + else + _cairo_output_stream_printf (surface->stream, + "%f %f %f rg\n", + red, green, blue); +} + +/* + * PS Forms are used for sources that have CAIRO_MIME_TYPE_UNIQUE_ID. They will be + * emitted once in the PS header and can be rendered with the 'execform' operator. + * + * This function tries adding the source the form hash table. If the source does not + * have CAIRO_MIME_TYPE_UNIQUE_ID, CAIRO_INT_STATUS_UNSUPPORTED is returned. + + * @source: [in] the source for the form + * @params: [in] source parameters + * @test: [in] if TRUE, test if form will be used (excludes size check) + * @ps_form [out] the new or existing entry int the hash table. + * image or recording. + */ +static cairo_int_status_t +_cairo_ps_surface_use_form (cairo_ps_surface_t *surface, + cairo_emit_surface_params_t *params, + cairo_bool_t test, + cairo_ps_form_t **ps_form) +{ + cairo_ps_form_t source_key; + cairo_ps_form_t *source_entry; + unsigned char *unique_id = NULL; + unsigned long unique_id_length = 0; + cairo_status_t status; + long max_size; + + if (params->op != CAIRO_OPERATOR_OVER || params->stencil_mask) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (params->src_surface->backend->type == CAIRO_SURFACE_TYPE_SUBSURFACE) + return CAIRO_INT_STATUS_UNSUPPORTED; + + cairo_surface_get_mime_data (params->src_surface, CAIRO_MIME_TYPE_UNIQUE_ID, + (const unsigned char **) &source_key.unique_id, + &source_key.unique_id_length); + if (source_key.unique_id == NULL || source_key.unique_id_length == 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (test) + return CAIRO_STATUS_SUCCESS; + + source_key.filter = params->filter; + _cairo_ps_form_init_key (&source_key); + source_entry = _cairo_hash_table_lookup (surface->forms, &source_key.base); + if (source_entry) { + _cairo_rectangle_union (&source_entry->required_extents, params->src_op_extents); + *ps_form = source_entry; + return CAIRO_STATUS_SUCCESS; + } + + if (surface->ps_level == CAIRO_PS_LEVEL_3) + max_size = MAX_L3_FORM_DATA; + else + max_size = MAX_L2_FORM_DATA; + + /* Don't add any more Forms if we exceed the form memory limit */ + if (surface->total_form_size + params->approx_size > max_size) + return CAIRO_INT_STATUS_UNSUPPORTED; + + surface->total_form_size += params->approx_size; + unique_id = _cairo_malloc (source_key.unique_id_length); + if (unique_id == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + unique_id_length = source_key.unique_id_length; + memcpy (unique_id, source_key.unique_id, unique_id_length); + + source_entry = _cairo_calloc (sizeof (cairo_ps_form_t)); + if (source_entry == NULL) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail; + } + + source_entry->unique_id_length = unique_id_length; + source_entry->unique_id = unique_id; + source_entry->id = surface->num_forms++; + source_entry->src_surface = cairo_surface_reference (params->src_surface); + source_entry->regions_id = params->regions_id; + if (_cairo_surface_is_recording (source_entry->src_surface) && source_entry->regions_id != 0) + _cairo_recording_surface_region_array_reference (source_entry->src_surface, source_entry->regions_id); + source_entry->src_surface_extents = *params->src_surface_extents; + source_entry->src_surface_bounded = params->src_surface_bounded; + source_entry->required_extents = *params->src_op_extents; + source_entry->filter = params->filter; + source_entry->is_image = params->is_image; + _cairo_ps_form_init_key (source_entry); + status = _cairo_hash_table_insert (surface->forms, &source_entry->base); + if (unlikely(status)) + goto fail; + + *ps_form = source_entry; + return CAIRO_STATUS_SUCCESS; + + fail: + free (unique_id); + free (source_entry); + return status; +} + +static cairo_int_status_t +_cairo_ps_surface_emit_form (cairo_ps_surface_t *surface, + cairo_emit_surface_params_t *params, + cairo_bool_t test) +{ + cairo_ps_form_t *ps_form = NULL; + cairo_status_t status; + + status = _cairo_ps_surface_use_form (surface, + params, + test, + &ps_form); + if (test || status) + return status; + + /* _cairo_ps_form_emit will use Level 3 if permitted by ps_level */ + if (surface->ps_level == CAIRO_PS_LEVEL_3) + surface->ps_level_used = CAIRO_PS_LEVEL_3; + + _cairo_output_stream_printf (surface->stream, + "/cairoform-%d /Form findresource execform\n", + ps_form->id); + + return CAIRO_STATUS_SUCCESS; +} + +/* Emit a surface. This function has three modes. + * + * CAIRO_EMIT_SURFACE_ANALYZE: This will determine the surface type to + * be emitted and approximate size. is_image is set to TRUE if the + * emitted surface is an image surface (including mime images). This + * is used by the caller to setup the correct CTM. approx_size is set + * to the approximate size of the emitted surface and is used as an + * input by the emit mode. + * + * CAIRO_EMIT_SURFACE_EMIT: Emits the surface will be emitted. The + * approx_size and the surface unique id values are used to determine + * if a Form should be used. If a form is used, the exec form + * operation is emitted and the surface is added to the forms hash + * table. + * + * CAIRO_EMIT_SURFACE_EMIT_FORM: Emits the form definition for the surface. + * + * Usage is: + * 1) Setup input params and call with ANALYZE. + * 2) Setup CTM for surface and call with EMIT using same params struct. + * The EMIT_FORM mode is used when emitting the form definitions. + */ +static cairo_int_status_t +_cairo_ps_surface_emit_surface (cairo_ps_surface_t *surface, + cairo_emit_surface_mode_t mode, + cairo_emit_surface_params_t *params) +{ + cairo_int_status_t status; + cairo_output_stream_t *old_stream = NULL; + cairo_bool_t use_form; + + /* Try emitting as a form. Returns unsupported if the surface is + * deemed unsuitable for a form. */ + use_form = FALSE; + if (mode == CAIRO_EMIT_SURFACE_ANALYZE || mode == CAIRO_EMIT_SURFACE_EMIT) { + status = _cairo_ps_surface_emit_form (surface, + params, + mode == CAIRO_EMIT_SURFACE_ANALYZE); + use_form = (status == CAIRO_INT_STATUS_SUCCESS); + if (status != CAIRO_INT_STATUS_SUCCESS && status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + if (mode == CAIRO_EMIT_SURFACE_EMIT && status == CAIRO_INT_STATUS_SUCCESS) + return status; + } + + status = _cairo_ps_surface_emit_eps (surface, mode, params); + if (status == CAIRO_INT_STATUS_SUCCESS) { + params->is_image = FALSE; + goto surface_emitted; + } + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + status = _cairo_ps_surface_emit_jpeg_image (surface, mode, params); + if (status == CAIRO_INT_STATUS_SUCCESS) { + params->is_image = TRUE; + goto surface_emitted; + } + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + status = _cairo_ps_surface_emit_ccitt_image (surface, mode, params); + if (status == CAIRO_INT_STATUS_SUCCESS) { + params->is_image = TRUE; + goto surface_emitted; + } + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + if (mode == CAIRO_EMIT_SURFACE_ANALYZE) { + /* Find size of image or recording surface by emitting to a memory stream */ + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + old_stream = surface->stream; + surface->stream = _cairo_memory_stream_create (); + _cairo_pdf_operators_set_stream (&surface->pdf_operators, surface->stream); + } + + if (params->src_surface->type == CAIRO_SURFACE_TYPE_RECORDING) { + params->is_image = FALSE; + if (params->src_surface->backend->type == CAIRO_SURFACE_TYPE_SUBSURFACE) { + cairo_surface_subsurface_t *sub = (cairo_surface_subsurface_t *) params->src_surface; + status = _cairo_ps_surface_emit_recording_surface (surface, + sub->target, + params->regions_id, + &sub->extents, + TRUE); + } else { + status = _cairo_ps_surface_emit_recording_surface (surface, + params->src_surface, + params->regions_id, + params->src_op_extents, + FALSE); + } + } else { + params->is_image = TRUE; + status = _cairo_ps_surface_emit_image (surface, mode, params); + } + + if (mode == CAIRO_EMIT_SURFACE_ANALYZE) { + unsigned char *data; + unsigned long length; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + status = _cairo_memory_stream_destroy (surface->stream, &data, &length); + free (data); + surface->stream = old_stream; + if (unlikely (status)) + return status; + + params->approx_size = length; + _cairo_pdf_operators_set_stream (&surface->pdf_operators, + surface->stream); + } + + surface_emitted: + + return status; +} + +static void +_cairo_ps_form_emit (void *entry, void *closure) +{ + cairo_ps_form_t *form = entry; + cairo_ps_surface_t *surface = closure; + cairo_emit_surface_params_t params; + cairo_int_status_t status; + cairo_output_stream_t *old_stream; + + params.src_surface = form->src_surface; + params.regions_id = form->regions_id; + params.op = CAIRO_OPERATOR_OVER; + params.src_surface_extents = &form->src_surface_extents; + params.src_surface_bounded = form->src_surface_bounded; + params.src_op_extents = &form->required_extents; + params.filter = form->filter; + params.stencil_mask = FALSE; + params.is_image = form->is_image; + params.approx_size = 0; + params.eod_count = 0; + + _cairo_output_stream_printf (surface->final_stream, + "%%%%BeginResource: form cairoform-%d\n", + form->id); + + _cairo_output_stream_printf (surface->final_stream, + "/cairo_paint_form-%d", + form->id); + if (surface->ps_level == CAIRO_PS_LEVEL_3) { + surface->paint_proc = FALSE; + _cairo_output_stream_printf (surface->final_stream, + "\n" + "currentfile\n" + "<< /Filter /SubFileDecode\n" + " /DecodeParms << /EODString (%s) /EODCount 0 >>\n" + ">> /ReusableStreamDecode filter\n", + SUBFILE_FILTER_EOD); + } else { + surface->paint_proc = TRUE; + _cairo_output_stream_printf (surface->final_stream, + " {\n"); + } + _cairo_output_stream_printf (surface->final_stream, + "5 dict begin\n"); + + old_stream = surface->stream; + surface->stream = surface->final_stream; + _cairo_pdf_operators_set_stream (&surface->pdf_operators, surface->stream); + status = _cairo_ps_surface_emit_surface (surface, + CAIRO_EMIT_SURFACE_EMIT_FORM, + ¶ms); + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + surface->stream = old_stream; + _cairo_pdf_operators_set_stream (&surface->pdf_operators, surface->stream); + + _cairo_output_stream_printf (surface->final_stream, + "end\n"); + if (surface->ps_level == CAIRO_PS_LEVEL_3) { + _cairo_output_stream_printf (surface->final_stream, + "%s\n" + "def\n", + SUBFILE_FILTER_EOD); + } else { + _cairo_output_stream_printf (surface->final_stream, + "} bind def\n"); + } + + _cairo_output_stream_printf (surface->final_stream, + "\n" + "/cairoform-%d\n" + "<<\n" + " /FormType 1\n", + form->id); + + if (form->is_image) { + _cairo_output_stream_printf (surface->final_stream, + " /BBox [ 0 0 1 1 ]\n"); + } else { + _cairo_output_stream_printf (surface->final_stream, + " /BBox [ %d %d %d %d ]\n", + form->required_extents.x, + form->required_extents.y, + form->required_extents.x + form->required_extents.width, + form->required_extents.y + form->required_extents.height); + } + + _cairo_output_stream_printf (surface->final_stream, + " /Matrix [ 1 0 0 1 0 0 ]\n" + " /PaintProc { pop cairo_paint_form-%d", + form->id); + + if (surface->ps_level == CAIRO_PS_LEVEL_3) { + _cairo_output_stream_printf (surface->final_stream, + " dup 0 setfileposition cvx exec"); + } + _cairo_output_stream_printf (surface->final_stream, + " } bind\n" + ">>\n" + "/Form defineresource pop\n"); + + _cairo_output_stream_printf (surface->final_stream, + "%%%%EndResource\n"); + if (status) + surface->base.status = status; +} + +static void +_path_fixed_init_rectangle (cairo_path_fixed_t *path, + cairo_rectangle_int_t *rect) +{ + cairo_status_t status; + + _cairo_path_fixed_init (path); + + status = _cairo_path_fixed_move_to (path, + _cairo_fixed_from_int (rect->x), + _cairo_fixed_from_int (rect->y)); + assert (status == CAIRO_STATUS_SUCCESS); + status = _cairo_path_fixed_rel_line_to (path, + _cairo_fixed_from_int (rect->width), + _cairo_fixed_from_int (0)); + assert (status == CAIRO_STATUS_SUCCESS); + status = _cairo_path_fixed_rel_line_to (path, + _cairo_fixed_from_int (0), + _cairo_fixed_from_int (rect->height)); + assert (status == CAIRO_STATUS_SUCCESS); + status = _cairo_path_fixed_rel_line_to (path, + _cairo_fixed_from_int (-rect->width), + _cairo_fixed_from_int (0)); + assert (status == CAIRO_STATUS_SUCCESS); + + status = _cairo_path_fixed_close_path (path); + assert (status == CAIRO_STATUS_SUCCESS); +} + +static cairo_status_t +_cairo_ps_surface_paint_surface (cairo_ps_surface_t *surface, + const cairo_pattern_t *pattern, + cairo_rectangle_int_t *extents, + cairo_operator_t op, + cairo_bool_t stencil_mask) +{ + cairo_rectangle_int_t src_surface_extents; + cairo_bool_t src_surface_bounded; + cairo_rectangle_int_t src_op_extents; + cairo_surface_t *source_surface; + double x_offset, y_offset; + cairo_status_t status; + cairo_matrix_t cairo_p2d, ps_p2d; + cairo_path_fixed_t path; + cairo_emit_surface_params_t params; + cairo_image_surface_t *image = NULL; + unsigned int region_id = 0; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) pattern; + region_id = surface_pattern->region_array_id; + } + + status = _cairo_ps_surface_acquire_source_surface_from_pattern (surface, + pattern, + extents, + &src_surface_extents, + &src_surface_bounded, + &src_op_extents, + &source_surface, + &x_offset, + &y_offset); + if (unlikely (status)) + return status; + + if (pattern->extend == CAIRO_EXTEND_PAD && + pattern->type == CAIRO_PATTERN_TYPE_SURFACE && + ((cairo_surface_pattern_t *)pattern)->surface->type == CAIRO_SURFACE_TYPE_IMAGE) { + cairo_image_surface_t *img; + + img = (cairo_image_surface_t *) source_surface; + status = _cairo_ps_surface_create_padded_image_from_image (surface, + img, + &pattern->matrix, + extents, + &image, + &src_surface_extents); + if (unlikely (status)) + goto release_source; + + x_offset = src_surface_extents.x; + y_offset = src_surface_extents.y; + } + + _path_fixed_init_rectangle (&path, extents); + status = _cairo_pdf_operators_clip (&surface->pdf_operators, + &path, + CAIRO_FILL_RULE_WINDING); + _cairo_path_fixed_fini (&path); + if (unlikely (status)) + goto release_source; + + cairo_p2d = pattern->matrix; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_FALLBACK) { + double x_scale = cairo_p2d.xx; + double y_scale = cairo_p2d.yy; + + _cairo_output_stream_printf (surface->stream, + "%% Fallback Image: x=%f y=%f w=%d h=%d ", + -cairo_p2d.x0/x_scale, + -cairo_p2d.y0/y_scale, + (int)(src_surface_extents.width/x_scale), + (int)(src_surface_extents.height/y_scale)); + if (x_scale == y_scale) { + _cairo_output_stream_printf (surface->stream, + "res=%fppi ", + x_scale*72); + } else { + _cairo_output_stream_printf (surface->stream, + "res=%fx%fppi ", + x_scale*72, + y_scale*72); + } + _cairo_output_stream_printf (surface->stream, + "size=%ld\n", + (long)src_surface_extents.width * src_surface_extents.height * 3); + } else { + if (op == CAIRO_OPERATOR_SOURCE) { + _cairo_output_stream_printf (surface->stream, + "%d g %d %d %d %d rectfill\n", + surface->content == CAIRO_CONTENT_COLOR ? 0 : 1, + surface->surface_extents.x, + surface->surface_extents.y, + surface->surface_extents.width, + surface->surface_extents.height); + } + } + + status = cairo_matrix_invert (&cairo_p2d); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_STATUS_SUCCESS); + + ps_p2d = surface->cairo_to_ps; + cairo_matrix_multiply (&ps_p2d, &cairo_p2d, &ps_p2d); + cairo_matrix_translate (&ps_p2d, x_offset, y_offset); + + params.src_surface = image ? &image->base : source_surface; + params.regions_id = image ? 0 : region_id; + params.op = op; + params.src_surface_extents = &src_surface_extents; + params.src_surface_bounded = src_surface_bounded; + params.src_op_extents = &src_op_extents; + params.filter = pattern->filter; + params.stencil_mask = stencil_mask; + params.is_image = FALSE; + params.approx_size = 0; + + status = _cairo_ps_surface_emit_surface (surface, CAIRO_EMIT_SURFACE_ANALYZE, ¶ms); + if (unlikely (status)) + goto release_source; + + if (params.is_image) { + cairo_matrix_translate (&ps_p2d, 0.0, src_surface_extents.height); + cairo_matrix_scale (&ps_p2d, 1.0, -1.0); + cairo_matrix_scale (&ps_p2d, src_surface_extents.width, src_surface_extents.height); + } + + if (! _cairo_matrix_is_identity (&ps_p2d)) { + _cairo_output_stream_printf (surface->stream, "[ "); + _cairo_output_stream_print_matrix (surface->stream, &ps_p2d); + _cairo_output_stream_printf (surface->stream, " ] concat\n"); + } + + status = _cairo_ps_surface_emit_surface (surface, CAIRO_EMIT_SURFACE_EMIT, ¶ms); + + release_source: + if (image) + cairo_surface_destroy (&image->base); + + _cairo_ps_surface_release_source_surface_from_pattern (surface, pattern, source_surface); + + return status; +} + +static cairo_status_t +_cairo_ps_surface_emit_surface_pattern (cairo_ps_surface_t *surface, + cairo_pattern_t *pattern, + cairo_rectangle_int_t *extents, + cairo_operator_t op) +{ + cairo_status_t status; + double xstep, ystep; + cairo_rectangle_int_t pattern_extents; + cairo_bool_t bounded; + cairo_matrix_t cairo_p2d, ps_p2d; + cairo_bool_t old_paint_proc; + double x_offset, y_offset; + cairo_surface_t *source_surface; + cairo_image_surface_t *image = NULL; + cairo_rectangle_int_t src_op_extents; + cairo_emit_surface_params_t params; + cairo_extend_t extend = cairo_pattern_get_extend (pattern); + unsigned int region_id = 0; + + cairo_p2d = pattern->matrix; + status = cairo_matrix_invert (&cairo_p2d); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_STATUS_SUCCESS); + + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) pattern; + region_id = surface_pattern->region_array_id; + } + + status = _cairo_ps_surface_acquire_source_surface_from_pattern (surface, + pattern, + extents, + &pattern_extents, + &bounded, + &src_op_extents, + &source_surface, + &x_offset, &y_offset); + if (unlikely (status)) + return status; + + if (extend == CAIRO_EXTEND_PAD) { + cairo_image_surface_t *img; + + assert (source_surface->type == CAIRO_SURFACE_TYPE_IMAGE); + img = (cairo_image_surface_t *) source_surface; + status = _cairo_ps_surface_create_padded_image_from_image (surface, + img, + &pattern->matrix, + extents, + &image, + &pattern_extents); + if (unlikely (status)) + goto release_source; + } + if (unlikely (status)) + goto release_source; + + if (!bounded) + { + extend = CAIRO_EXTEND_NONE; + _cairo_rectangle_intersect (&pattern_extents, &src_op_extents); + } + + switch (extend) { + case CAIRO_EXTEND_PAD: + case CAIRO_EXTEND_NONE: + { + /* In PS/PDF, (as far as I can tell), all patterns are + * repeating. So we support cairo's EXTEND_NONE semantics + * by setting the repeat step size to a size large enough + * to guarantee that no more than a single occurrence will + * be visible. + * + * First, map the surface extents into pattern space (since + * xstep and ystep are in pattern space). Then use an upper + * bound on the length of the diagonal of the pattern image + * and the surface as repeat size. This guarantees to never + * repeat visibly. + */ + double x1 = 0.0, y1 = 0.0; + double x2 = surface->surface_extents.width; + double y2 = surface->surface_extents.height; + _cairo_matrix_transform_bounding_box (&pattern->matrix, + &x1, &y1, &x2, &y2, + NULL); + + /* Rather than computing precise bounds of the union, just + * add the surface extents unconditionally. We only + * required an answer that's large enough, we don't really + * care if it's not as tight as possible.*/ + xstep = ystep = ceil ((x2 - x1) + (y2 - y1) + + pattern_extents.width + pattern_extents.height); + break; + } + case CAIRO_EXTEND_REPEAT: + xstep = pattern_extents.width; + ystep = pattern_extents.height; + break; + case CAIRO_EXTEND_REFLECT: + xstep = pattern_extents.width*2; + ystep = pattern_extents.height*2; + break; + /* All the rest (if any) should have been analyzed away, so these + * cases should be unreachable. */ + default: + ASSERT_NOT_REACHED; + xstep = 0; + ystep = 0; + } + + _cairo_output_stream_printf (surface->stream, + "/CairoPattern {\n" + "q %d %d %d %d rectclip\n", + pattern_extents.x, pattern_extents.y, + pattern_extents.width, pattern_extents.height); + + if (extend == CAIRO_EXTEND_REPEAT || extend == CAIRO_EXTEND_REFLECT) + src_op_extents = pattern_extents; + + old_paint_proc = surface->paint_proc; + surface->paint_proc = TRUE; + params.src_surface = image ? &image->base : source_surface; + params.regions_id = image ? 0 : region_id; + params.op = op; + params.src_surface_extents = &pattern_extents; + params.src_surface_bounded = bounded; + params.src_op_extents = &src_op_extents; + params.filter = pattern->filter; + params.stencil_mask = FALSE; + params.is_image = FALSE; + params.approx_size = 0; + status = _cairo_ps_surface_emit_surface (surface, CAIRO_EMIT_SURFACE_ANALYZE, ¶ms); + if (unlikely (status)) + goto release_source; + + if (params.is_image) { + _cairo_output_stream_printf (surface->stream, + "[ %d 0 0 %d 0 0 ] concat\n", + pattern_extents.width, pattern_extents.height); + } + + if (op == CAIRO_OPERATOR_SOURCE) { + _cairo_output_stream_printf (surface->stream, + "%d g %d %d %f %f rectfill\n", + surface->content == CAIRO_CONTENT_COLOR ? 0 : 1, + pattern_extents.x, pattern_extents.y, + xstep, ystep); + } + + status = _cairo_ps_surface_emit_surface (surface, CAIRO_EMIT_SURFACE_EMIT, ¶ms); + if (unlikely (status)) + goto release_source; + + _cairo_output_stream_printf (surface->stream, + " Q } bind def\n"); + + _cairo_output_stream_printf (surface->stream, + "<< /PatternType 1\n" + " /PaintType 1\n" + " /TilingType 1\n"); + _cairo_output_stream_printf (surface->stream, + " /XStep %f /YStep %f\n", + xstep, ystep); + + if (extend == CAIRO_EXTEND_REFLECT) { + cairo_matrix_t mat; + + _cairo_output_stream_printf (surface->stream, + " /BBox [%d %d %d %d]\n" + " /PaintProc {\n" + " pop CairoPattern\n", + pattern_extents.x, + pattern_extents.y, + pattern_extents.x + pattern_extents.width*2, + pattern_extents.y + pattern_extents.height*2); + + cairo_matrix_init_translate (&mat, pattern_extents.x, pattern_extents.y); + cairo_matrix_scale (&mat, -1, 1); + cairo_matrix_translate (&mat, -2*pattern_extents.width, 0); + cairo_matrix_translate (&mat, -pattern_extents.x, -pattern_extents.y); + _cairo_output_stream_printf (surface->stream, " q ["); + _cairo_output_stream_print_matrix (surface->stream, &mat); + _cairo_output_stream_printf (surface->stream, "] concat CairoPattern Q\n"); + + cairo_matrix_init_translate (&mat, pattern_extents.x, pattern_extents.y); + cairo_matrix_scale (&mat, 1, -1); + cairo_matrix_translate (&mat, 0, -2*pattern_extents.height); + cairo_matrix_translate (&mat, -pattern_extents.x, -pattern_extents.y); + _cairo_output_stream_printf (surface->stream, " q ["); + _cairo_output_stream_print_matrix (surface->stream, &mat); + _cairo_output_stream_printf (surface->stream, "] concat CairoPattern Q\n"); + + cairo_matrix_init_translate (&mat, pattern_extents.x, pattern_extents.y); + cairo_matrix_scale (&mat, -1, -1); + cairo_matrix_translate (&mat, -2*pattern_extents.width, -2*pattern_extents.height); + cairo_matrix_translate (&mat, -pattern_extents.x, -pattern_extents.y); + _cairo_output_stream_printf (surface->stream, " q ["); + _cairo_output_stream_print_matrix (surface->stream, &mat); + _cairo_output_stream_printf (surface->stream, "] concat CairoPattern Q\n"); + + _cairo_output_stream_printf (surface->stream, " } bind\n"); + } else { + if (op == CAIRO_OPERATOR_SOURCE) { + _cairo_output_stream_printf (surface->stream, + " /BBox [0 0 %f %f]\n", + xstep, ystep); + } else { + _cairo_output_stream_printf (surface->stream, + " /BBox [%d %d %d %d]\n", + pattern_extents.x, + pattern_extents.y, + pattern_extents.x + pattern_extents.width, + pattern_extents.y + pattern_extents.height); + } + _cairo_output_stream_printf (surface->stream, + " /PaintProc { pop CairoPattern }\n"); + } + + _cairo_output_stream_printf (surface->stream, + ">>\n"); + + cairo_p2d = pattern->matrix; + status = cairo_matrix_invert (&cairo_p2d); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_STATUS_SUCCESS); + + cairo_matrix_init_identity (&ps_p2d); + cairo_matrix_multiply (&ps_p2d, &cairo_p2d, &ps_p2d); + cairo_matrix_translate (&ps_p2d, x_offset, y_offset); + if (((cairo_surface_pattern_t *)pattern)->surface->type != CAIRO_SURFACE_TYPE_RECORDING) + { + cairo_matrix_translate (&ps_p2d, 0.0, pattern_extents.height); + cairo_matrix_scale (&ps_p2d, 1.0, -1.0); + } + + _cairo_output_stream_printf (surface->stream, "[ "); + _cairo_output_stream_print_matrix (surface->stream, &ps_p2d); + _cairo_output_stream_printf (surface->stream, + " ]\n" + "makepattern setpattern\n"); + + surface->paint_proc = old_paint_proc; + + release_source: + if (image) + cairo_surface_destroy (&image->base); + + _cairo_ps_surface_release_source_surface_from_pattern (surface, pattern, source_surface); + + return status; +} + +typedef struct _cairo_ps_color_stop { + double offset; + double color[4]; +} cairo_ps_color_stop_t; + +static void +_cairo_ps_surface_emit_linear_colorgradient (cairo_ps_surface_t *surface, + cairo_ps_color_stop_t *stop1, + cairo_ps_color_stop_t *stop2) +{ + _cairo_output_stream_printf (surface->stream, + " << /FunctionType 2\n" + " /Domain [ 0 1 ]\n" + " /C0 [ %f %f %f ]\n" + " /C1 [ %f %f %f ]\n" + " /N 1\n" + " >>\n", + stop1->color[0], + stop1->color[1], + stop1->color[2], + stop2->color[0], + stop2->color[1], + stop2->color[2]); +} + +static void +_cairo_ps_surface_emit_stitched_colorgradient (cairo_ps_surface_t *surface, + unsigned int n_stops, + cairo_ps_color_stop_t stops[]) +{ + unsigned int i; + + _cairo_output_stream_printf (surface->stream, + "<< /FunctionType 3\n" + " /Domain [ 0 1 ]\n" + " /Functions [\n"); + for (i = 0; i < n_stops - 1; i++) + _cairo_ps_surface_emit_linear_colorgradient (surface, &stops[i], &stops[i+1]); + + _cairo_output_stream_printf (surface->stream, " ]\n"); + + _cairo_output_stream_printf (surface->stream, " /Bounds [ "); + for (i = 1; i < n_stops-1; i++) + _cairo_output_stream_printf (surface->stream, "%f ", stops[i].offset); + _cairo_output_stream_printf (surface->stream, "]\n"); + + _cairo_output_stream_printf (surface->stream, " /Encode [ 1 1 %d { pop 0 1 } for ]\n", + n_stops - 1); + + _cairo_output_stream_printf (surface->stream, ">>\n"); +} + +static void +calc_gradient_color (cairo_ps_color_stop_t *new_stop, + cairo_ps_color_stop_t *stop1, + cairo_ps_color_stop_t *stop2) +{ + int i; + double offset = stop1->offset / (stop1->offset + 1.0 - stop2->offset); + + for (i = 0; i < 4; i++) + new_stop->color[i] = stop1->color[i] + offset*(stop2->color[i] - stop1->color[i]); +} + +#define COLOR_STOP_EPSILON 1e-6 + +static cairo_status_t +_cairo_ps_surface_emit_pattern_stops (cairo_ps_surface_t *surface, + cairo_gradient_pattern_t *pattern) +{ + cairo_ps_color_stop_t *allstops, *stops; + unsigned int i, n_stops; + + allstops = _cairo_malloc_ab ((pattern->n_stops + 2), sizeof (cairo_ps_color_stop_t)); + if (unlikely (allstops == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + stops = &allstops[1]; + n_stops = pattern->n_stops; + + for (i = 0; i < n_stops; i++) { + cairo_gradient_stop_t *stop = &pattern->stops[i]; + + stops[i].color[0] = stop->color.red; + stops[i].color[1] = stop->color.green; + stops[i].color[2] = stop->color.blue; + stops[i].color[3] = stop->color.alpha; + stops[i].offset = pattern->stops[i].offset; + } + + if (pattern->base.extend == CAIRO_EXTEND_REPEAT || + pattern->base.extend == CAIRO_EXTEND_REFLECT) + { + if (stops[0].offset > COLOR_STOP_EPSILON) { + if (pattern->base.extend == CAIRO_EXTEND_REFLECT) + memcpy (allstops, stops, sizeof (cairo_ps_color_stop_t)); + else + calc_gradient_color (&allstops[0], &stops[0], &stops[n_stops-1]); + stops = allstops; + n_stops++; + } + stops[0].offset = 0.0; + + if (stops[n_stops-1].offset < 1.0 - COLOR_STOP_EPSILON) { + if (pattern->base.extend == CAIRO_EXTEND_REFLECT) { + memcpy (&stops[n_stops], + &stops[n_stops - 1], + sizeof (cairo_ps_color_stop_t)); + } else { + calc_gradient_color (&stops[n_stops], &stops[0], &stops[n_stops-1]); + } + n_stops++; + } + stops[n_stops-1].offset = 1.0; + } + + for (i = 0; i < n_stops; i++) { + double red, green, blue; + cairo_color_t color; + + _cairo_color_init_rgba (&color, + stops[i].color[0], + stops[i].color[1], + stops[i].color[2], + stops[i].color[3]); + _cairo_ps_surface_flatten_transparency (surface, &color, + &red, &green, &blue); + stops[i].color[0] = red; + stops[i].color[1] = green; + stops[i].color[2] = blue; + } + + _cairo_output_stream_printf (surface->stream, + "/CairoFunction\n"); + if (stops[0].offset == stops[n_stops - 1].offset) { + /* + * The first and the last stops have the same offset, but we + * don't want a function with an empty domain, because that + * would provoke underdefined behaviour from rasterisers. + * This can only happen with EXTEND_PAD, because EXTEND_NONE + * is optimised into a clear pattern in cairo-gstate, and + * REFLECT/REPEAT are always transformed to have the first + * stop at t=0 and the last stop at t=1. Thus we want a step + * function going from the first color to the last one. + * + * This can be accomplished by stitching three functions: + * - a constant first color function, + * - a step from the first color to the last color (with empty domain) + * - a constant last color function + */ + cairo_ps_color_stop_t pad_stops[4]; + + assert (pattern->base.extend == CAIRO_EXTEND_PAD); + + pad_stops[0] = pad_stops[1] = stops[0]; + pad_stops[2] = pad_stops[3] = stops[n_stops - 1]; + + pad_stops[0].offset = 0; + pad_stops[3].offset = 1; + + _cairo_ps_surface_emit_stitched_colorgradient (surface, 4, pad_stops); + } else if (n_stops == 2) { + /* no need for stitched function */ + _cairo_ps_surface_emit_linear_colorgradient (surface, &stops[0], &stops[1]); + } else { + /* multiple stops: stitch. XXX possible optimization: regularly spaced + * stops do not require stitching. XXX */ + _cairo_ps_surface_emit_stitched_colorgradient (surface, n_stops, stops); + } + _cairo_output_stream_printf (surface->stream, + "def\n"); + + free (allstops); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_ps_surface_emit_repeating_function (cairo_ps_surface_t *surface, + cairo_gradient_pattern_t *pattern, + int begin, + int end) +{ + _cairo_output_stream_printf (surface->stream, + "/CairoFunction\n" + "<< /FunctionType 3\n" + " /Domain [ %d %d ]\n" + " /Functions [ %d {CairoFunction} repeat ]\n" + " /Bounds [ %d 1 %d {} for ]\n", + begin, + end, + end - begin, + begin + 1, + end - 1); + + if (pattern->base.extend == CAIRO_EXTEND_REFLECT) { + _cairo_output_stream_printf (surface->stream, " /Encode [ %d 1 %d { 2 mod 0 eq {0 1} {1 0} ifelse } for ]\n", + begin, + end - 1); + } else { + _cairo_output_stream_printf (surface->stream, " /Encode [ %d 1 %d { pop 0 1 } for ]\n", + begin, + end - 1); + } + + _cairo_output_stream_printf (surface->stream, ">> def\n"); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_ps_surface_emit_gradient (cairo_ps_surface_t *surface, + cairo_gradient_pattern_t *pattern, + cairo_bool_t is_ps_pattern) +{ + cairo_matrix_t pat_to_ps; + cairo_circle_double_t start, end; + double domain[2]; + cairo_status_t status; + + assert (pattern->n_stops != 0); + + status = _cairo_ps_surface_emit_pattern_stops (surface, pattern); + if (unlikely (status)) + return status; + + pat_to_ps = pattern->base.matrix; + status = cairo_matrix_invert (&pat_to_ps); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_STATUS_SUCCESS); + cairo_matrix_multiply (&pat_to_ps, &pat_to_ps, &surface->cairo_to_ps); + + if (pattern->base.extend == CAIRO_EXTEND_REPEAT || + pattern->base.extend == CAIRO_EXTEND_REFLECT) + { + double bounds_x1, bounds_x2, bounds_y1, bounds_y2; + double x_scale, y_scale, tolerance; + + /* TODO: use tighter extents */ + bounds_x1 = 0; + bounds_y1 = 0; + bounds_x2 = surface->width; + bounds_y2 = surface->height; + _cairo_matrix_transform_bounding_box (&pattern->base.matrix, + &bounds_x1, &bounds_y1, + &bounds_x2, &bounds_y2, + NULL); + + x_scale = surface->base.x_resolution / surface->base.x_fallback_resolution; + y_scale = surface->base.y_resolution / surface->base.y_fallback_resolution; + + tolerance = fabs (_cairo_matrix_compute_determinant (&pattern->base.matrix)); + tolerance /= _cairo_matrix_transformed_circle_major_axis (&pattern->base.matrix, 1); + tolerance *= MIN (x_scale, y_scale); + + _cairo_gradient_pattern_box_to_parameter (pattern, + bounds_x1, bounds_y1, + bounds_x2, bounds_y2, + tolerance, domain); + } else if (pattern->stops[0].offset == pattern->stops[pattern->n_stops - 1].offset) { + /* + * If the first and the last stop offset are the same, then + * the color function is a step function. + * _cairo_ps_surface_emit_pattern_stops emits it as a stitched + * function no matter how many stops the pattern has. The + * domain of the stitched function will be [0 1] in this case. + * + * This is done to avoid emitting degenerate gradients for + * EXTEND_PAD patterns having a step color function. + */ + domain[0] = 0.0; + domain[1] = 1.0; + + assert (pattern->base.extend == CAIRO_EXTEND_PAD); + } else { + domain[0] = pattern->stops[0].offset; + domain[1] = pattern->stops[pattern->n_stops - 1].offset; + } + + /* PS requires the first and last stop to be the same as the + * extreme coordinates. For repeating patterns this moves the + * extreme coordinates out to the begin/end of the repeating + * function. For non repeating patterns this may move the extreme + * coordinates in if there are not stops at offset 0 and 1. */ + _cairo_gradient_pattern_interpolate (pattern, domain[0], &start); + _cairo_gradient_pattern_interpolate (pattern, domain[1], &end); + + if (pattern->base.extend == CAIRO_EXTEND_REPEAT || + pattern->base.extend == CAIRO_EXTEND_REFLECT) + { + int repeat_begin, repeat_end; + + repeat_begin = floor (domain[0]); + repeat_end = ceil (domain[1]); + + status = _cairo_ps_surface_emit_repeating_function (surface, + pattern, + repeat_begin, + repeat_end); + if (unlikely (status)) + return status; + } else if (pattern->n_stops <= 2) { + /* For EXTEND_NONE and EXTEND_PAD if there are only two stops a + * Type 2 function is used by itself without a stitching + * function. Type 2 functions always have the domain [0 1] */ + domain[0] = 0.0; + domain[1] = 1.0; + } + + if (is_ps_pattern) { + _cairo_output_stream_printf (surface->stream, + "<< /PatternType 2\n" + " /Shading\n"); + } + + if (pattern->base.type == CAIRO_PATTERN_TYPE_LINEAR) { + _cairo_output_stream_printf (surface->stream, + " << /ShadingType 2\n" + " /ColorSpace /DeviceRGB\n" + " /Coords [ %f %f %f %f ]\n", + start.center.x, start.center.y, + end.center.x, end.center.y); + } else { + _cairo_output_stream_printf (surface->stream, + " << /ShadingType 3\n" + " /ColorSpace /DeviceRGB\n" + " /Coords [ %f %f %f %f %f %f ]\n", + start.center.x, start.center.y, + MAX (start.radius, 0), + end.center.x, end.center.y, + MAX (end.radius, 0)); + } + + if (pattern->base.extend != CAIRO_EXTEND_NONE) { + _cairo_output_stream_printf (surface->stream, + " /Extend [ true true ]\n"); + } else { + _cairo_output_stream_printf (surface->stream, + " /Extend [ false false ]\n"); + } + + if (domain[0] == 0.0 && domain[1] == 1.0) { + _cairo_output_stream_printf (surface->stream, + " /Function CairoFunction\n"); + } else { + _cairo_output_stream_printf (surface->stream, + " /Function <<\n" + " /FunctionType 3\n" + " /Domain [ 0 1 ]\n" + " /Bounds [ ]\n" + " /Encode [ %f %f ]\n" + " /Functions [ CairoFunction ]\n" + " >>\n", + domain[0], domain[1]); + } + + _cairo_output_stream_printf (surface->stream, + " >>\n"); + + if (is_ps_pattern) { + _cairo_output_stream_printf (surface->stream, + ">>\n" + "[ "); + _cairo_output_stream_print_matrix (surface->stream, &pat_to_ps); + _cairo_output_stream_printf (surface->stream, " ]\n" + "makepattern setpattern\n"); + } else { + _cairo_output_stream_printf (surface->stream, + "shfill\n"); + } + + return status; +} + +static cairo_status_t +_cairo_ps_surface_emit_mesh_pattern (cairo_ps_surface_t *surface, + cairo_mesh_pattern_t *pattern, + cairo_bool_t is_ps_pattern) +{ + cairo_matrix_t pat_to_ps; + cairo_status_t status; + cairo_pdf_shading_t shading; + int i; + + if (_cairo_array_num_elements (&pattern->patches) == 0) + return CAIRO_INT_STATUS_NOTHING_TO_DO; + + pat_to_ps = pattern->base.matrix; + status = cairo_matrix_invert (&pat_to_ps); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_STATUS_SUCCESS); + + cairo_matrix_multiply (&pat_to_ps, &pat_to_ps, &surface->cairo_to_ps); + + status = _cairo_pdf_shading_init_color (&shading, pattern); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->stream, + "currentfile\n" + "/ASCII85Decode filter /FlateDecode filter /ReusableStreamDecode filter\n"); + + status = _cairo_ps_surface_emit_base85_string (surface, + shading.data, + shading.data_length, + CAIRO_PS_COMPRESS_DEFLATE, + FALSE); + if (status) + return status; + + _cairo_output_stream_printf (surface->stream, + "\n" + "/CairoData exch def\n"); + + if (is_ps_pattern) { + _cairo_output_stream_printf (surface->stream, + "<< /PatternType 2\n" + " /Shading\n"); + } + + _cairo_output_stream_printf (surface->stream, + " << /ShadingType %d\n" + " /ColorSpace /DeviceRGB\n" + " /DataSource CairoData\n" + " /BitsPerCoordinate %d\n" + " /BitsPerComponent %d\n" + " /BitsPerFlag %d\n" + " /Decode [", + shading.shading_type, + shading.bits_per_coordinate, + shading.bits_per_component, + shading.bits_per_flag); + + for (i = 0; i < shading.decode_array_length; i++) + _cairo_output_stream_printf (surface->stream, "%f ", shading.decode_array[i]); + + _cairo_output_stream_printf (surface->stream, + "]\n" + " >>\n"); + + if (is_ps_pattern) { + _cairo_output_stream_printf (surface->stream, + ">>\n" + "[ \n"); + _cairo_output_stream_print_matrix (surface->stream, &pat_to_ps); + _cairo_output_stream_printf (surface->stream, + " ]\n" + "makepattern\n" + "setpattern\n"); + } else { + _cairo_output_stream_printf (surface->stream, "shfill\n"); + } + + _cairo_output_stream_printf (surface->stream, + "currentdict /CairoData undef\n"); + + _cairo_pdf_shading_fini (&shading); + + return status; +} + +static cairo_status_t +_cairo_ps_surface_emit_pattern (cairo_ps_surface_t *surface, + const cairo_pattern_t *pattern, + cairo_rectangle_int_t *extents, + cairo_operator_t op) +{ + cairo_status_t status; + + if (pattern->type == CAIRO_PATTERN_TYPE_SOLID) { + cairo_solid_pattern_t *solid = (cairo_solid_pattern_t *) pattern; + + if (surface->current_pattern_is_solid_color == FALSE || + ! _cairo_color_equal (&surface->current_color, &solid->color)) + { + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + _cairo_ps_surface_emit_solid_pattern (surface, (cairo_solid_pattern_t *) pattern); + + surface->current_pattern_is_solid_color = TRUE; + surface->current_color = solid->color; + } + + return CAIRO_STATUS_SUCCESS; + } + + surface->current_pattern_is_solid_color = FALSE; + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + return status; + + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + + _cairo_ps_surface_emit_solid_pattern (surface, (cairo_solid_pattern_t *) pattern); + break; + + case CAIRO_PATTERN_TYPE_SURFACE: + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + status = _cairo_ps_surface_emit_surface_pattern (surface, + (cairo_pattern_t *)pattern, + extents, + op); + if (unlikely (status)) + return status; + break; + + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + status = _cairo_ps_surface_emit_gradient (surface, + (cairo_gradient_pattern_t *) pattern, + TRUE); + if (unlikely (status)) + return status; + break; + + case CAIRO_PATTERN_TYPE_MESH: + status = _cairo_ps_surface_emit_mesh_pattern (surface, + (cairo_mesh_pattern_t *) pattern, + TRUE); + if (unlikely (status)) + return status; + break; + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_ps_surface_paint_gradient (cairo_ps_surface_t *surface, + const cairo_pattern_t *source, + const cairo_rectangle_int_t *extents) +{ + cairo_matrix_t pat_to_ps; + cairo_status_t status; + + pat_to_ps = source->matrix; + status = cairo_matrix_invert (&pat_to_ps); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_STATUS_SUCCESS); + cairo_matrix_multiply (&pat_to_ps, &pat_to_ps, &surface->cairo_to_ps); + + if (! _cairo_matrix_is_identity (&pat_to_ps)) { + _cairo_output_stream_printf (surface->stream, "["); + _cairo_output_stream_print_matrix (surface->stream, &pat_to_ps); + _cairo_output_stream_printf (surface->stream, "] concat\n"); + } + + if (source->type == CAIRO_PATTERN_TYPE_MESH) { + status = _cairo_ps_surface_emit_mesh_pattern (surface, + (cairo_mesh_pattern_t *)source, + FALSE); + if (unlikely (status)) + return status; + } else { + status = _cairo_ps_surface_emit_gradient (surface, + (cairo_gradient_pattern_t *)source, + FALSE); + if (unlikely (status)) + return status; + } + + return status; +} + +static cairo_status_t +_cairo_ps_surface_paint_pattern (cairo_ps_surface_t *surface, + const cairo_pattern_t *source, + cairo_rectangle_int_t *extents, + cairo_operator_t op, + cairo_bool_t stencil_mask) +{ + switch (source->type) { + case CAIRO_PATTERN_TYPE_SURFACE: + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + return _cairo_ps_surface_paint_surface (surface, + source, + extents, + op, + stencil_mask); + + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + case CAIRO_PATTERN_TYPE_MESH: + return _cairo_ps_surface_paint_gradient (surface, + source, + extents); + + case CAIRO_PATTERN_TYPE_SOLID: + default: + ASSERT_NOT_REACHED; + return CAIRO_STATUS_SUCCESS; + } +} + +static cairo_bool_t +_can_paint_pattern (const cairo_pattern_t *pattern) +{ + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + return FALSE; + + case CAIRO_PATTERN_TYPE_SURFACE: + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + return (pattern->extend == CAIRO_EXTEND_NONE || + pattern->extend == CAIRO_EXTEND_PAD); + + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + case CAIRO_PATTERN_TYPE_MESH: + return TRUE; + + default: + ASSERT_NOT_REACHED; + return FALSE; + } +} + +static cairo_bool_t +_cairo_ps_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle) +{ + cairo_ps_surface_t *surface = abstract_surface; + + if (surface->surface_bounded) + *rectangle = surface->surface_extents; + + return surface->surface_bounded; +} + +static void +_cairo_ps_surface_get_font_options (void *abstract_surface, + cairo_font_options_t *options) +{ + _cairo_font_options_init_default (options); + + cairo_font_options_set_hint_style (options, CAIRO_HINT_STYLE_NONE); + cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_OFF); + cairo_font_options_set_antialias (options, CAIRO_ANTIALIAS_GRAY); + _cairo_font_options_set_round_glyph_positions (options, CAIRO_ROUND_GLYPH_POS_OFF); +} + +static cairo_int_status_t +_cairo_ps_surface_set_clip (cairo_ps_surface_t *surface, + cairo_composite_rectangles_t *composite) +{ + cairo_clip_t *clip = composite->clip; + + if (_cairo_composite_rectangles_can_reduce_clip (composite, clip)) + clip = NULL; + + if (clip == NULL) { + if (_cairo_composite_rectangles_can_reduce_clip (composite, + surface->clipper.clip)) + return CAIRO_STATUS_SUCCESS; + } + + return _cairo_surface_clipper_set_clip (&surface->clipper, clip); +} + +static cairo_int_status_t +_cairo_ps_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_ps_surface_t *surface = abstract_surface; + cairo_output_stream_t *stream = surface->stream; + cairo_composite_rectangles_t extents; + cairo_status_t status; + + status = _cairo_composite_rectangles_init_for_paint (&extents, + &surface->base, + op, source, clip); + if (unlikely (status)) + return status; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + status = _cairo_ps_surface_analyze_operation (surface, op, source, NULL, &extents.bounded); + goto cleanup_composite; + } + + assert (_cairo_ps_surface_operation_supported (surface, op, source, NULL, &extents.bounded)); + +#if DEBUG_PS + _cairo_output_stream_printf (stream, + "%% _cairo_ps_surface_paint\n"); +#endif + + status = _cairo_ps_surface_set_clip (surface, &extents); + if (unlikely (status)) + goto cleanup_composite; + + if (_can_paint_pattern (source)) { + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + goto cleanup_composite; + + _cairo_output_stream_printf (stream, "q\n"); + status = _cairo_ps_surface_paint_pattern (surface, + source, + &extents.bounded, op, FALSE); + if (unlikely (status)) + goto cleanup_composite; + + _cairo_output_stream_printf (stream, "Q\n"); + } else { + status = _cairo_ps_surface_emit_pattern (surface, source, &extents.bounded, op); + if (unlikely (status)) + goto cleanup_composite; + + _cairo_output_stream_printf (stream, "%d %d %d %d rectfill\n", + surface->surface_extents.x, + surface->surface_extents.y, + surface->surface_extents.width, + surface->surface_extents.height); + } + +cleanup_composite: + _cairo_composite_rectangles_fini (&extents); + return status; +} + +static cairo_int_status_t +_cairo_ps_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_ps_surface_t *surface = abstract_surface; + cairo_output_stream_t *stream = surface->stream; + cairo_composite_rectangles_t extents; + cairo_status_t status; + + status = _cairo_composite_rectangles_init_for_mask (&extents, + &surface->base, + op, source, mask, clip); + if (unlikely (status)) + return status; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + status = _cairo_ps_surface_analyze_operation (surface, op, source, mask, &extents.bounded); + goto cleanup_composite; + } + + assert (_cairo_ps_surface_operation_supported (surface, op, source, mask, &extents.bounded)); + +#if DEBUG_PS + _cairo_output_stream_printf (stream, + "%% _cairo_ps_surface_mask\n"); +#endif + + status = _cairo_ps_surface_set_clip (surface, &extents); + if (unlikely (status)) + goto cleanup_composite; + + status = _cairo_ps_surface_emit_pattern (surface, source, &extents.bounded, op); + if (unlikely (status)) + goto cleanup_composite; + + _cairo_output_stream_printf (stream, "q\n"); + status = _cairo_ps_surface_paint_pattern (surface, + mask, + &extents.bounded, op, TRUE); + if (unlikely (status)) + goto cleanup_composite; + + _cairo_output_stream_printf (stream, "Q\n"); + +cleanup_composite: + _cairo_composite_rectangles_fini (&extents); + return status; +} + +static cairo_int_status_t +_cairo_ps_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_ps_surface_t *surface = abstract_surface; + cairo_composite_rectangles_t extents; + cairo_int_status_t status; + + status = _cairo_composite_rectangles_init_for_stroke (&extents, + &surface->base, + op, source, + path, style, ctm, + clip); + if (unlikely (status)) + return status; + + /* use the more accurate extents */ + { + cairo_rectangle_int_t r; + cairo_box_t b; + + status = _cairo_path_fixed_stroke_extents (path, style, + ctm, ctm_inverse, + tolerance, + &r); + if (unlikely (status)) + goto cleanup_composite; + + _cairo_box_from_rectangle (&b, &r); + status = _cairo_composite_rectangles_intersect_mask_extents (&extents, &b); + if (unlikely (status)) + goto cleanup_composite; + } + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + status = _cairo_ps_surface_analyze_operation (surface, op, source, NULL, &extents.bounded); + goto cleanup_composite; + } + + assert (_cairo_ps_surface_operation_supported (surface, op, source, NULL, &extents.bounded)); + +#if DEBUG_PS + _cairo_output_stream_printf (surface->stream, + "%% _cairo_ps_surface_stroke\n"); +#endif + + status = _cairo_ps_surface_set_clip (surface, &extents); + if (unlikely (status)) + goto cleanup_composite; + + status = _cairo_ps_surface_emit_pattern (surface, source, &extents.bounded, op); + if (unlikely (status)) + goto cleanup_composite; + + status = _cairo_pdf_operators_stroke (&surface->pdf_operators, + path, + style, + ctm, + ctm_inverse); + +cleanup_composite: + _cairo_composite_rectangles_fini (&extents); + return status; +} + +static cairo_int_status_t +_cairo_ps_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t*path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_ps_surface_t *surface = abstract_surface; + cairo_composite_rectangles_t extents; + cairo_int_status_t status; + + status = _cairo_composite_rectangles_init_for_fill (&extents, + &surface->base, + op, source, path, + clip); + if (unlikely (status)) + return status; + + /* use the more accurate extents */ + { + cairo_rectangle_int_t r; + cairo_box_t b; + + _cairo_path_fixed_fill_extents (path, + fill_rule, + tolerance, + &r); + + _cairo_box_from_rectangle (&b, &r); + status = _cairo_composite_rectangles_intersect_mask_extents (&extents, &b); + if (unlikely (status)) + goto cleanup_composite; + } + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + status = _cairo_ps_surface_analyze_operation (surface, op, source, NULL, &extents.bounded); + goto cleanup_composite; + } + + assert (_cairo_ps_surface_operation_supported (surface, op, source, NULL, &extents.bounded)); + +#if DEBUG_PS + _cairo_output_stream_printf (surface->stream, + "%% _cairo_ps_surface_fill\n"); +#endif + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (unlikely (status)) + goto cleanup_composite; + + status = _cairo_ps_surface_set_clip (surface, &extents); + if (unlikely (status)) + goto cleanup_composite; + + if (_can_paint_pattern (source)) { + _cairo_output_stream_printf (surface->stream, "q\n"); + + status = _cairo_pdf_operators_clip (&surface->pdf_operators, + path, + fill_rule); + if (unlikely (status)) + goto cleanup_composite; + + status = _cairo_ps_surface_paint_pattern (surface, + source, + &extents.bounded, op, FALSE); + if (unlikely (status)) + goto cleanup_composite; + + _cairo_output_stream_printf (surface->stream, "Q\n"); + _cairo_pdf_operators_reset (&surface->pdf_operators); + } else { + status = _cairo_ps_surface_emit_pattern (surface, source, &extents.bounded, op); + if (unlikely (status)) + goto cleanup_composite; + + status = _cairo_pdf_operators_fill (&surface->pdf_operators, + path, + fill_rule); + } + +cleanup_composite: + _cairo_composite_rectangles_fini (&extents); + return status; +} + +static cairo_bool_t +_cairo_ps_surface_has_show_text_glyphs (void *abstract_surface) +{ + return TRUE; +} + +static cairo_int_status_t +_cairo_ps_surface_show_text_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const char *utf8, + int utf8_len, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_ps_surface_t *surface = abstract_surface; + cairo_composite_rectangles_t extents; + cairo_bool_t overlap; + cairo_status_t status; + + status = _cairo_composite_rectangles_init_for_glyphs (&extents, + &surface->base, + op, source, + scaled_font, + glyphs, num_glyphs, + clip, + &overlap); + if (unlikely (status)) + return status; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + status = _cairo_ps_surface_analyze_operation (surface, op, source, NULL, &extents.bounded); + goto cleanup_composite; + } + + assert (_cairo_ps_surface_operation_supported (surface, op, source, NULL, &extents.bounded)); + +#if DEBUG_PS + _cairo_output_stream_printf (surface->stream, + "%% _cairo_ps_surface_show_glyphs\n"); +#endif + + status = _cairo_ps_surface_set_clip (surface, &extents); + if (unlikely (status)) + goto cleanup_composite; + + status = _cairo_ps_surface_emit_pattern (surface, source, &extents.bounded, op); + if (unlikely (status)) + goto cleanup_composite; + + status = _cairo_pdf_operators_show_text_glyphs (&surface->pdf_operators, + utf8, utf8_len, + glyphs, num_glyphs, + clusters, num_clusters, + cluster_flags, + scaled_font); + +cleanup_composite: + _cairo_composite_rectangles_fini (&extents); + return status; +} + +static const char ** +_cairo_ps_surface_get_supported_mime_types (void *abstract_surface) +{ + return _cairo_ps_supported_mime_types; +} + +static cairo_int_status_t +_cairo_ps_surface_set_paginated_mode (void *abstract_surface, + cairo_paginated_mode_t paginated_mode) +{ + cairo_ps_surface_t *surface = abstract_surface; + cairo_status_t status; + + surface->paginated_mode = paginated_mode; + + if (paginated_mode == CAIRO_PAGINATED_MODE_RENDER) { + surface->surface_extents.x = 0; + surface->surface_extents.y = 0; + surface->surface_extents.width = ceil (surface->width); + surface->surface_extents.height = ceil (surface->height); + + if (surface->clipper.clip != NULL) + { + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + + _cairo_output_stream_printf (surface->stream, "Q q\n"); + _cairo_surface_clipper_reset (&surface->clipper); + } + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_ps_surface_set_bounding_box (void *abstract_surface, + cairo_box_t *analysis_bbox) +{ + cairo_ps_surface_t *surface = abstract_surface; + int i, num_comments; + char **comments; + cairo_bool_t has_page_media, has_page_bbox; + const char *page_media; + cairo_rectangle_int_t page_bbox; + cairo_point_int_t bbox_p1, bbox_p2; /* in PS coordinates */ + + _cairo_box_round_to_rectangle (analysis_bbox, &page_bbox); + + /* convert to PS coordinates */ + bbox_p1.x = page_bbox.x; + bbox_p1.y = ceil(surface->height) - (page_bbox.y + page_bbox.height); + bbox_p2.x = page_bbox.x + page_bbox.width; + bbox_p2.y = ceil(surface->height) - page_bbox.y; + + if (surface->num_pages == 1) { + surface->document_bbox_p1 = bbox_p1; + surface->document_bbox_p2 = bbox_p2; + } else { + if (bbox_p1.x < surface->document_bbox_p1.x) + surface->document_bbox_p1.x = bbox_p1.x; + if (bbox_p1.y < surface->document_bbox_p1.y) + surface->document_bbox_p1.y = bbox_p1.y; + if (bbox_p2.x < surface->document_bbox_p2.x) + surface->document_bbox_p2.x = bbox_p2.x; + if (bbox_p2.y < surface->document_bbox_p2.y) + surface->document_bbox_p2.y = bbox_p2.y; + } + + _cairo_output_stream_printf (surface->stream, + "%%%%Page: %d %d\n", + surface->num_pages, + surface->num_pages); + + _cairo_output_stream_printf (surface->stream, + "%%%%BeginPageSetup\n"); + + has_page_media = FALSE; + has_page_bbox = FALSE; + num_comments = _cairo_array_num_elements (&surface->dsc_page_setup_comments); + comments = _cairo_array_index (&surface->dsc_page_setup_comments, 0); + for (i = 0; i < num_comments; i++) { + _cairo_output_stream_printf (surface->stream, + "%s\n", comments[i]); + if (strncmp (comments[i], "%%PageMedia:", 11) == 0) + has_page_media = TRUE; + + if (strncmp (comments[i], "%%PageBoundingBox:", 18) == 0) + has_page_bbox = TRUE; + + free (comments[i]); + comments[i] = NULL; + } + _cairo_array_truncate (&surface->dsc_page_setup_comments, 0); + + if (!has_page_media && !surface->eps) { + page_media = _cairo_ps_surface_get_page_media (surface); + if (unlikely (page_media == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_output_stream_printf (surface->stream, + "%%%%PageMedia: %s\n", + page_media); + } + + if (!has_page_bbox) { + _cairo_output_stream_printf (surface->stream, + "%%%%PageBoundingBox: %d %d %d %d\n", + bbox_p1.x, + bbox_p1.y, + bbox_p2.x, + bbox_p2.y); + } + + if (!surface->eps) { + _cairo_output_stream_printf (surface->stream, + "%f %f cairo_set_page_size\n", + ceil(surface->width), + ceil(surface->height)); + } + + _cairo_output_stream_printf (surface->stream, + "%%%%EndPageSetup\n" + "q %d %d %d %d rectclip\n" + "1 0 0 -1 0 %f cm q\n", + bbox_p1.x, + bbox_p1.y, + bbox_p2.x - bbox_p1.x, + bbox_p2.y - bbox_p1.y, + ceil(surface->height)); + + surface->current_pattern_is_solid_color = FALSE; + _cairo_pdf_operators_reset (&surface->pdf_operators); + + return _cairo_output_stream_get_status (surface->stream); +} + +static cairo_bool_t +_cairo_ps_surface_supports_fine_grained_fallbacks (void *abstract_surface) +{ + return TRUE; +} + +static const cairo_surface_backend_t cairo_ps_surface_backend = { + CAIRO_SURFACE_TYPE_PS, + _cairo_ps_surface_finish, + + _cairo_default_context_create, + + NULL, /* create similar: handled by wrapper */ + NULL, /* create similar image */ + NULL, /* map to image */ + NULL, /* unmap image */ + + _cairo_surface_default_source, + NULL, /* acquire_source_image */ + NULL, /* release_source_image */ + NULL, /* snapshot */ + + NULL, /* cairo_ps_surface_copy_page */ + _cairo_ps_surface_show_page, + + _cairo_ps_surface_get_extents, + _cairo_ps_surface_get_font_options, + + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + + /* Here are the drawing functions */ + + _cairo_ps_surface_paint, /* paint */ + _cairo_ps_surface_mask, + _cairo_ps_surface_stroke, + _cairo_ps_surface_fill, + NULL, /* fill-stroke */ + NULL, /* show_glyphs */ + _cairo_ps_surface_has_show_text_glyphs, + _cairo_ps_surface_show_text_glyphs, + _cairo_ps_surface_get_supported_mime_types, +}; + +static const cairo_paginated_surface_backend_t cairo_ps_surface_paginated_backend = { + _cairo_ps_surface_start_page, + _cairo_ps_surface_set_paginated_mode, + _cairo_ps_surface_set_bounding_box, + NULL, /* _cairo_ps_surface_has_fallback_images, */ + _cairo_ps_surface_supports_fine_grained_fallbacks, +}; diff --git a/local/recipes/libs/cairo/source/src/cairo-ps.h b/local/recipes/libs/cairo/source/src/cairo-ps.h new file mode 100644 index 0000000000..33d0e0d941 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-ps.h @@ -0,0 +1,116 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_PS_H +#define CAIRO_PS_H + +#include "cairo.h" + +#if CAIRO_HAS_PS_SURFACE + +#include + +CAIRO_BEGIN_DECLS + +/* PS-surface functions */ + +/** + * cairo_ps_level_t: + * @CAIRO_PS_LEVEL_2: The language level 2 of the PostScript specification. (Since 1.6) + * @CAIRO_PS_LEVEL_3: The language level 3 of the PostScript specification. (Since 1.6) + * + * #cairo_ps_level_t is used to describe the language level of the + * PostScript Language Reference that a generated PostScript file will + * conform to. + * + * Since: 1.6 + **/ +typedef enum _cairo_ps_level { + CAIRO_PS_LEVEL_2, + CAIRO_PS_LEVEL_3 +} cairo_ps_level_t; + +cairo_public cairo_surface_t * +cairo_ps_surface_create (const char *filename, + double width_in_points, + double height_in_points); + +cairo_public cairo_surface_t * +cairo_ps_surface_create_for_stream (cairo_write_func_t write_func, + void *closure, + double width_in_points, + double height_in_points); + +cairo_public void +cairo_ps_surface_restrict_to_level (cairo_surface_t *surface, + cairo_ps_level_t level); + +cairo_public void +cairo_ps_get_levels (cairo_ps_level_t const **levels, + int *num_levels); + +cairo_public const char * +cairo_ps_level_to_string (cairo_ps_level_t level); + +cairo_public void +cairo_ps_surface_set_eps (cairo_surface_t *surface, + cairo_bool_t eps); + +cairo_public cairo_bool_t +cairo_ps_surface_get_eps (cairo_surface_t *surface); + +cairo_public void +cairo_ps_surface_set_size (cairo_surface_t *surface, + double width_in_points, + double height_in_points); + +cairo_public void +cairo_ps_surface_dsc_comment (cairo_surface_t *surface, + const char *comment); + +cairo_public void +cairo_ps_surface_dsc_begin_setup (cairo_surface_t *surface); + +cairo_public void +cairo_ps_surface_dsc_begin_page_setup (cairo_surface_t *surface); + +CAIRO_END_DECLS + +#else /* CAIRO_HAS_PS_SURFACE */ +# error Cairo was not compiled with support for the ps backend +#endif /* CAIRO_HAS_PS_SURFACE */ + +#endif /* CAIRO_PS_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-quartz-font.c b/local/recipes/libs/cairo/source/src/cairo-quartz-font.c new file mode 100644 index 0000000000..b1a6fd7f58 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-quartz-font.c @@ -0,0 +1,851 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright � 2008 Mozilla Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Mozilla Foundation. + * + * Contributor(s): + * Vladimir Vukicevic + */ + +#include "cairoint.h" + +#include + +#include "cairo-image-surface-private.h" +#include "cairo-quartz.h" +#include "cairo-quartz-private.h" + +#include "cairo-error-private.h" + +//#define DEBUG /* Uncomment this to get debug messages on the console. */ +/** + * SECTION:cairo-quartz-fonts + * @Title: Quartz (CGFont) Fonts + * @Short_Description: Font support via Core Text on Apple operating systems. + * @See_Also: #cairo_font_face_t + * + * Provide support for font faces via Core Text. + **/ + +/** + * CAIRO_HAS_QUARTZ_FONT: + * + * Defined if the Quartz font backend is available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.6 + **/ + +/* These are private functions */ +static bool (*CGContextGetAllowsFontSmoothingPtr) (CGContextRef) = NULL; +static ATSFontRef (*FMGetATSFontRefFromFontPtr) (FMFont iFont) = NULL; + +static cairo_bool_t _cairo_quartz_font_symbol_lookup_done = FALSE; +/* Cairo's transformations assume a unit-scaled font. */ +static const CGFloat font_scale = 1.0; + +/* Defined in 10.11 */ +#define CGGLYPH_MAX ((CGGlyph) 0xFFFE) /* kCGFontIndexMax */ +#define CGGLYPH_INVALID ((CGGlyph) 0xFFFF) /* kCGFontIndexInvalid */ + +#if MAC_OS_X_VERSION_MIN_REQUIRED < 1080 +#define FONT_ORIENTATION_HORIZONTAL kCTFontHorizontalOrientation +#define FONT_COLOR_GLYPHS kCTFontColorGlyphsTrait +#else +#define FONT_ORIENTATION_HORIZONTAL kCTFontOrientationHorizontal +#define FONT_COLOR_GLYPHS kCTFontTraitColorGlyphs +#endif + +static void +quartz_font_ensure_symbols(void) +{ + if (_cairo_quartz_font_symbol_lookup_done) + return; + + CGContextGetAllowsFontSmoothingPtr = + dlsym (RTLD_DEFAULT, "CGContextGetAllowsFontSmoothing"); + + FMGetATSFontRefFromFontPtr = dlsym(RTLD_DEFAULT, "FMGetATSFontRefFromFont"); + + _cairo_quartz_font_symbol_lookup_done = TRUE; +} + +typedef struct _cairo_quartz_font_face cairo_quartz_font_face_t; +typedef struct _cairo_quartz_scaled_font cairo_quartz_scaled_font_t; + +struct _cairo_quartz_scaled_font { + cairo_scaled_font_t base; + CTFontRef ctFont; +}; + +struct _cairo_quartz_font_face { + cairo_font_face_t base; + + CGFontRef cgFont; +}; + +/* + * font face backend + */ + +static cairo_status_t +_cairo_quartz_font_face_create_for_toy (cairo_toy_font_face_t *toy_face, + cairo_font_face_t **font_face) +{ + const char *family; + char *full_name; + CFStringRef FontName = NULL; + CGFontRef cgFont = NULL; + int loop; + + family = toy_face->family; + full_name = _cairo_malloc (strlen (family) + 64); // give us a bit of room to tack on Bold, Oblique, etc. + /* handle CSS-ish faces */ + if (!strcmp(family, "serif") || !strcmp(family, "Times Roman")) + family = "Times"; + else if (!strcmp(family, "sans-serif") || !strcmp(family, "sans")) + family = "Helvetica"; + else if (!strcmp(family, "cursive")) + family = "Apple Chancery"; + else if (!strcmp(family, "fantasy")) + family = "Papyrus"; + else if (!strcmp(family, "monospace") || !strcmp(family, "mono")) + family = "Courier"; + + /* Try to build up the full name, e.g. "Helvetica Bold Oblique" first, + * then drop the bold, then drop the slant, then drop both.. finally + * just use "Helvetica". And if Helvetica doesn't exist, give up. + */ + for (loop = 0; loop < 5; loop++) { + if (loop == 4) + family = "Helvetica"; + + strcpy (full_name, family); + + if (loop < 3 && (loop & 1) == 0) { + if (toy_face->weight == CAIRO_FONT_WEIGHT_BOLD) + strcat (full_name, "-Bold"); + } + + if (loop < 3 && (loop & 2) == 0) { + if (toy_face->slant == CAIRO_FONT_SLANT_ITALIC) + strcat (full_name, "-Italic"); + else if (toy_face->slant == CAIRO_FONT_SLANT_OBLIQUE) + strcat (full_name, "-Oblique"); + } + + FontName = CFStringCreateWithCString (NULL, full_name, kCFStringEncodingASCII); + cgFont = CGFontCreateWithFontName (FontName); + CFRelease (FontName); + + if (!cgFont) { + /* Attempt to create font by replacing hyphens for spaces in font name. */ + for (size_t i = 0; i < strlen (full_name); i++) { + if (full_name[i] == '-') + full_name[i] = ' '; + } + FontName = CFStringCreateWithCString (NULL, full_name, kCFStringEncodingASCII); + cgFont = CGFontCreateWithFontName (FontName); + CFRelease (FontName); + } + + if (cgFont) + break; + } + + if (!cgFont) { + /* Give up */ + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + *font_face = cairo_quartz_font_face_create_for_cgfont (cgFont); + CFRelease (cgFont); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_cairo_quartz_font_face_destroy (void *abstract_face) +{ + cairo_quartz_font_face_t *font_face = (cairo_quartz_font_face_t*) abstract_face; + + CGFontRelease (font_face->cgFont); + return TRUE; +} + +static const cairo_scaled_font_backend_t _cairo_quartz_scaled_font_backend; + +#ifdef DEBUG +static void +_cairo_quartz_debug_font_characteristics (cairo_quartz_scaled_font_t *font) +{ + CGRect ct_bbox = CTFontGetBoundingBox (font->ctFont); + CGFloat ct_ascent = CTFontGetAscent (font->ctFont); + CGFloat ct_descent = CTFontGetDescent (font->ctFont); + CGFloat ct_leading = CTFontGetLeading (font->ctFont); + CGFloat ct_capheight = CTFontGetCapHeight (font->ctFont); + CGFloat ct_xheight = CTFontGetXHeight (font->ctFont); + char chars[] = "ymMW"; + CGGlyph glyphs[4]; + UniChar *utf16 = NULL; + CGSize ct_advances[4]; + CGRect ct_gbbox[4], ct_gobox[4], ct_rbbox, ct_robox; + double ct_radvance; + int converted; + cairo_status_t rv; + + rv = _cairo_utf8_to_utf16 (chars, 4, &utf16, &converted); + if (rv) return; + CTFontGetGlyphsForCharacters (font->ctFont, utf16, glyphs, 4); + free (utf16); + ct_rbbox = CTFontGetBoundingRectsForGlyphs (font->ctFont, FONT_ORIENTATION_HORIZONTAL, glyphs, ct_gbbox, 4); + ct_robox = CTFontGetOpticalBoundsForGlyphs (font->ctFont, glyphs, ct_gobox, 4, 0); + ct_radvance = CTFontGetAdvancesForGlyphs (font->ctFont, FONT_ORIENTATION_HORIZONTAL, glyphs, ct_advances, 4); + + fprintf (stderr, "\nCTFont Bounding Box: %f %f %f %f\nAscent %f Descent %f Leading %f Cap Height %f X-Height %f\n", + ct_bbox.origin.x, ct_bbox.origin.y, ct_bbox.size.width, ct_bbox.size.height, ct_ascent, ct_descent, + ct_leading, ct_capheight, ct_xheight); + fprintf (stderr, "CTFont string\n\t bounding box %f %f %f %f advance %f\n\toptical box %f %f %f %f\n\n", + ct_rbbox.origin.x, ct_rbbox.origin.y, ct_rbbox.size.width, ct_rbbox.size.height, ct_radvance, + ct_robox.origin.x, ct_robox.origin.y, ct_robox.size.width, ct_robox.size.height); + for (int i = 0; i < 4; ++i) + { + fprintf (stderr, "Character %c\n", chars[i]); + fprintf (stderr, "\tbox %f %f %f %f\n\toptical %f %f %f %f advance %f %f\n", + ct_gbbox[i].origin.x, ct_gbbox[i].origin.y, ct_gbbox[i].size.width, ct_gbbox[i].size.height, + ct_advances[i].width, ct_advances[i].height, + ct_gobox[i].origin.x, ct_gobox[i].origin.y, ct_gobox[i].size.width, ct_gobox[i].size.height); + } + fprintf (stderr, "\n"); +} +#endif + +static cairo_status_t +_cairo_quartz_font_face_scaled_font_create (void *abstract_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options, + cairo_scaled_font_t **font_out) +{ + cairo_quartz_font_face_t *font_face = abstract_face; + cairo_quartz_scaled_font_t *font = NULL; + cairo_status_t status; + cairo_font_extents_t fs_metrics; + CTFontRef ctFont; + CGRect bbox; + + font = _cairo_calloc (sizeof(cairo_quartz_scaled_font_t)); + if (font == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memset (font, 0, sizeof(cairo_quartz_scaled_font_t)); + + status = _cairo_scaled_font_init (&font->base, + &font_face->base, font_matrix, ctm, options, + &_cairo_quartz_scaled_font_backend); + if (status) + goto FINISH; + + ctFont = CTFontCreateWithGraphicsFont (font_face->cgFont, font_scale, NULL, NULL); + /* initialize metrics */ + fs_metrics.ascent = CTFontGetAscent (ctFont); + fs_metrics.descent = CTFontGetDescent (ctFont); + fs_metrics.height = fs_metrics.ascent + fs_metrics.descent + + CTFontGetLeading (ctFont); + + bbox = CTFontGetBoundingBox (ctFont); + fs_metrics.max_x_advance = CGRectGetMaxX(bbox); + fs_metrics.max_y_advance = 0.0; + font->ctFont = CFRetain (ctFont); + status = _cairo_scaled_font_set_metrics (&font->base, &fs_metrics); +#ifdef DEBUG + { + CFStringRef fontFullName = CTFontCopyFullName (ctFont); + const char* font_full_name = CFStringGetCStringPtr(fontFullName, kCFStringEncodingUTF8); + + fprintf (stderr, "Create scaled font %s with scale %f ascent %f, descent %f, height %f, x-advance %f\n", + font_full_name, fs_metrics.ascent, fs_metrics.descent, fs_metrics.height, + fs_metrics.max_x_advance); + _cairo_quartz_debug_font_characteristics (font); + } +#endif + +FINISH: + if (status != CAIRO_STATUS_SUCCESS) { + free (font); + } else { + *font_out = (cairo_scaled_font_t*) font; + } + + return status; +} + +const cairo_font_face_backend_t _cairo_quartz_font_face_backend = { + CAIRO_FONT_TYPE_QUARTZ, + _cairo_quartz_font_face_create_for_toy, + _cairo_quartz_font_face_destroy, + _cairo_quartz_font_face_scaled_font_create +}; + +static inline cairo_quartz_font_face_t* +_cairo_quartz_font_face_create () +{ + cairo_quartz_font_face_t *font_face = + _cairo_calloc (sizeof (cairo_quartz_font_face_t)); + + if (!font_face) { + cairo_status_t ignore_status; + ignore_status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + return (cairo_quartz_font_face_t *)&_cairo_font_face_nil; + } + + _cairo_font_face_init (&font_face->base, &_cairo_quartz_font_face_backend); + + return font_face; +} + +/** + * cairo_quartz_font_face_create_for_cgfont: + * @font: a #CGFontRef obtained through a method external to cairo. + * + * Creates a new font for the Quartz font backend based on a + * #CGFontRef. This font can then be used with + * cairo_set_font_face() or cairo_scaled_font_create(). + * + * Return value: a newly created #cairo_font_face_t. Free with + * cairo_font_face_destroy() when you are done using it. + * + * Since: 1.6 + **/ +cairo_font_face_t * +cairo_quartz_font_face_create_for_cgfont (CGFontRef font) +{ + cairo_quartz_font_face_t* font_face = _cairo_quartz_font_face_create (); + + if (cairo_font_face_status (&font_face->base)) + return &font_face->base; + + font_face->cgFont = CGFontRetain (font); + + return &font_face->base; +} + +/* + * scaled font backend + */ + +static cairo_quartz_font_face_t * +_cairo_quartz_scaled_to_face (void *abstract_font) +{ + cairo_quartz_scaled_font_t *sfont = (cairo_quartz_scaled_font_t*) abstract_font; + cairo_font_face_t *font_face = sfont->base.font_face; + assert (font_face->backend->type == CAIRO_FONT_TYPE_QUARTZ); + return (cairo_quartz_font_face_t*) font_face; +} + +static void +_cairo_quartz_scaled_font_fini(void *abstract_font) +{ + cairo_quartz_scaled_font_t* font = (cairo_quartz_scaled_font_t*)abstract_font; + CFRelease (font->ctFont); +} + +static inline CGGlyph +_cairo_quartz_scaled_glyph_index (cairo_scaled_glyph_t *scaled_glyph) { + unsigned long index = _cairo_scaled_glyph_index (scaled_glyph); + return index <= CGGLYPH_MAX ? index : CGGLYPH_INVALID; +} + +static cairo_int_status_t +_cairo_quartz_init_glyph_metrics (cairo_quartz_scaled_font_t *font, + cairo_scaled_glyph_t *scaled_glyph) +{ + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + + cairo_text_extents_t extents = {0, 0, 0, 0, 0, 0}; + CGGlyph glyph = _cairo_quartz_scaled_glyph_index (scaled_glyph); + CGSize advance; + CGRect bbox; + double xmin, ymin, xmax, ymax; + + if (unlikely (glyph == CGGLYPH_INVALID)) + goto FAIL; + + CTFontGetAdvancesForGlyphs (font->ctFont, FONT_ORIENTATION_HORIZONTAL, &glyph, &advance, 1); + CTFontGetBoundingRectsForGlyphs (font->ctFont, FONT_ORIENTATION_HORIZONTAL, &glyph, &bbox, 1); + /* broken fonts like Al Bayan return incorrect bounds for some null characters, + see https://bugzilla.mozilla.org/show_bug.cgi?id=534260 */ + if (unlikely (bbox.origin.x == -32767 && + bbox.origin.y == -32767 && + bbox.size.width == 65534 && + bbox.size.height == 65534)) { + bbox.origin.x = bbox.origin.y = 0; + bbox.size.width = bbox.size.height = 0; + } + +#ifdef DEBUG + fprintf (stderr, "[0x%04x] bbox: x %f y %f width %f height %f\n", glyph, + bbox.origin.x, bbox.origin.y, bbox.size.width, bbox.size.height); +#endif + + xmin = CGRectGetMinX(bbox); + ymin = CGRectGetMinY(bbox); + xmax = CGRectGetMaxX(bbox); + ymax = CGRectGetMaxY(bbox); + + extents.x_bearing = xmin; + extents.y_bearing = - ymax; + extents.width = xmax - xmin; + extents.height = ymax - ymin; +/* At the necessary 1.0pt ctFont size some glyphs get a reduced + * advance that causes overlaps when scaled up. We can avoid that by + * using the width instead if it's wider. Since cairo doesn't support + * vertical font layout we don't do the same for y_advance. + */ + extents.x_advance = MAX(extents.width, advance.width); + extents.y_advance = advance.height; + +#ifdef DEBUG + fprintf (stderr, "[0x%04x] extents: bearings: %f %f dim: %f %f adv: %f %f\n\n", glyph, + extents.x_bearing, extents.y_bearing, extents.width, extents.height, extents.x_advance, extents.y_advance); +#endif + + FAIL: + _cairo_scaled_glyph_set_metrics (scaled_glyph, + &font->base, + &extents); + + return status; +} + +static void +_cairo_quartz_path_apply_func (void *info, const CGPathElement *el) +{ + cairo_path_fixed_t *path = (cairo_path_fixed_t *) info; + cairo_status_t status; + + switch (el->type) { + case kCGPathElementMoveToPoint: + status = _cairo_path_fixed_move_to (path, + _cairo_fixed_from_double(el->points[0].x), + _cairo_fixed_from_double(el->points[0].y)); + assert(!status); + break; + case kCGPathElementAddLineToPoint: + status = _cairo_path_fixed_line_to (path, + _cairo_fixed_from_double(el->points[0].x), + _cairo_fixed_from_double(el->points[0].y)); + assert(!status); + break; + case kCGPathElementAddQuadCurveToPoint: { + cairo_fixed_t fx, fy; + double x, y; + if (!_cairo_path_fixed_get_current_point (path, &fx, &fy)) + fx = fy = 0; + x = _cairo_fixed_to_double (fx); + y = _cairo_fixed_to_double (fy); + + status = _cairo_path_fixed_curve_to (path, + _cairo_fixed_from_double((x + el->points[0].x * 2.0) / 3.0), + _cairo_fixed_from_double((y + el->points[0].y * 2.0) / 3.0), + _cairo_fixed_from_double((el->points[0].x * 2.0 + el->points[1].x) / 3.0), + _cairo_fixed_from_double((el->points[0].y * 2.0 + el->points[1].y) / 3.0), + _cairo_fixed_from_double(el->points[1].x), + _cairo_fixed_from_double(el->points[1].y)); + } + assert(!status); + break; + case kCGPathElementAddCurveToPoint: + status = _cairo_path_fixed_curve_to (path, + _cairo_fixed_from_double(el->points[0].x), + _cairo_fixed_from_double(el->points[0].y), + _cairo_fixed_from_double(el->points[1].x), + _cairo_fixed_from_double(el->points[1].y), + _cairo_fixed_from_double(el->points[2].x), + _cairo_fixed_from_double(el->points[2].y)); + assert(!status); + break; + case kCGPathElementCloseSubpath: + status = _cairo_path_fixed_close_path (path); + assert(!status); + break; + } +} + +static cairo_int_status_t +_cairo_quartz_init_glyph_path (cairo_quartz_scaled_font_t *font, + cairo_scaled_glyph_t *scaled_glyph) +{ + CGGlyph glyph = _cairo_quartz_scaled_glyph_index (scaled_glyph); + CGAffineTransform textMatrix; + CGPathRef glyphPath; + cairo_path_fixed_t *path; + + if (unlikely (glyph == CGGLYPH_INVALID)) { + _cairo_scaled_glyph_set_path (scaled_glyph, &font->base, _cairo_path_fixed_create()); + return CAIRO_STATUS_SUCCESS; + } + + /* scale(1,-1) * font->base.scale */ + textMatrix = CGAffineTransformMake (font->base.scale.xx, + font->base.scale.yx, + -font->base.scale.xy, + -font->base.scale.yy, + 0, 0); + + glyphPath = CTFontCreatePathForGlyph (font->ctFont, glyph, &textMatrix); + + if (!glyphPath) + return CAIRO_INT_STATUS_UNSUPPORTED; + + path = _cairo_path_fixed_create (); + if (!path) { + CGPathRelease (glyphPath); + return _cairo_error(CAIRO_STATUS_NO_MEMORY); + } + + CGPathApply (glyphPath, path, _cairo_quartz_path_apply_func); + + CGPathRelease (glyphPath); + + _cairo_scaled_glyph_set_path (scaled_glyph, &font->base, path); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_cairo_quartz_font_has_color_glyphs (void *abstract_font) +{ + cairo_quartz_scaled_font_t *face = (cairo_quartz_scaled_font_t*)abstract_font; + CTFontSymbolicTraits traits = CTFontGetSymbolicTraits (face->ctFont); + return traits & FONT_COLOR_GLYPHS; +} + +static cairo_int_status_t +_cairo_quartz_init_glyph_surface (cairo_quartz_scaled_font_t *font, + cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_glyph_info_t info, + const cairo_color_t *fg_color) +{ + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_image_surface_t *surface = NULL; + + CGGlyph glyph = _cairo_quartz_scaled_glyph_index (scaled_glyph); + cairo_text_extents_t metrics = scaled_glyph->fs_metrics; + CGRect bbox = CGRectMake (metrics.x_bearing, -(metrics.y_bearing + metrics.height), + metrics.width, metrics.height); + double width, height; + + CGAffineTransform textMatrix; + CGRect glyphRect, glyphRectInt; + CGPoint glyphOrigin; + cairo_bool_t is_color = info & CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE; + cairo_format_t format = is_color ? CAIRO_FORMAT_ARGB32 : CAIRO_FORMAT_A8; + +#ifdef DEBUG + fprintf (stderr, "[0x%04x] bearing: %f %f width %f height %f advances %f %f\n", + glyph, metrics.x_bearing, metrics.y_bearing, metrics.width, metrics.height, + metrics.x_advance, metrics.y_advance); + fprintf (stderr, "[0x%04x] bounds: origin %f %f, size %f %f\n", glyph, bbox.origin.x, + bbox.origin.y, bbox.size.width, bbox.size.height); +#endif + /* Create blank 2x2 image if we don't have this character. + * Maybe we should draw a better missing-glyph slug or something, + * but this is ok for now. + */ + if (unlikely (glyph == CGGLYPH_INVALID)) { + surface = (cairo_image_surface_t*) cairo_image_surface_create (CAIRO_FORMAT_A8, 2, 2); + status = cairo_surface_status ((cairo_surface_t *) surface); + if (status) + return status; + + _cairo_scaled_glyph_set_surface (scaled_glyph, + &font->base, + surface); + return CAIRO_STATUS_SUCCESS; + } + +/* Note: Certain opentype color fonts have the ability to provide a + * mixture of color and not-color glyphs. The Core Text API doesn't + * expose a way to query individual glyphs and at the level that that + * API is written it's not supposed to matter. The following code will + * cheerfully render any glyph requested onto the image surface. If + * the font is capable of color and + * COLOR_SCALED_GLYPH_INFO_COLOR_SURFACE is set then you get back a + * CAIRO_FORMAT_ARGB32 surface. If a foreground color is provided then + * the glyph will be drawn in that color, otherwise it will be black. + */ + if (unlikely (is_color && ! _cairo_quartz_font_has_color_glyphs (font))) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* scale(1,-1) * font->base.scale * scale(1,-1) */ + textMatrix = CGAffineTransformMake (font->base.scale.xx, + -font->base.scale.yx, + -font->base.scale.xy, + font->base.scale.yy, + 0, 0); + glyphRect = CGRectApplyAffineTransform (bbox, textMatrix); + + /* Round the rectangle outwards, so that we don't have to deal + * with non-integer-pixel origins or dimensions. + */ + glyphRectInt = CGRectIntegral (glyphRect); + +#ifdef DEBUG + fprintf (stderr, "glyphRect[o]: %f %f %f %f\n", + glyphRect.origin.x, glyphRect.origin.y, glyphRect.size.width, glyphRect.size.height); + fprintf (stderr, "glyphRectInt: %f %f %f %f\n", + glyphRectInt.origin.x, glyphRectInt.origin.y, glyphRectInt.size.width, glyphRectInt.size.height); +#endif + + glyphOrigin = glyphRectInt.origin; + + width = glyphRectInt.size.width; + height = glyphRectInt.size.height; + + surface = (cairo_image_surface_t*) cairo_image_surface_create (format, width, height); + if (surface->base.status) + return surface->base.status; + + if (surface->width != 0 && surface->height != 0) { + CGColorSpaceRef colorspace = is_color ? CGColorSpaceCreateDeviceRGB () : NULL; + CGBitmapInfo bitinfo = is_color ? kCGBitmapByteOrder32Host | kCGImageAlphaPremultipliedFirst : kCGImageAlphaOnly; + + CGContextRef cgContext = CGBitmapContextCreate (surface->data, + surface->width, + surface->height, + 8, + surface->stride, + colorspace, + bitinfo); + + if (cgContext == NULL) { + cairo_surface_destroy (&surface->base); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + if (fg_color) + CGContextSetRGBFillColor (cgContext, fg_color->red, fg_color->green, fg_color->blue, fg_color->alpha); + _cairo_quartz_set_antialiasing (cgContext, font->base.options.antialias); + CGContextSetAlpha (cgContext, 1.0); + CGContextTranslateCTM (cgContext, -glyphOrigin.x, -glyphOrigin.y); + CGContextConcatCTM (cgContext, textMatrix); + CTFontDrawGlyphs (font->ctFont, &glyph, &CGPointZero, 1, cgContext); + CGContextRelease (cgContext); + CGColorSpaceRelease (colorspace); + } + + cairo_surface_set_device_offset (&surface->base, + - glyphOrigin.x, + height + glyphOrigin.y); + cairo_surface_mark_dirty (&surface->base); + + if (is_color) + _cairo_scaled_glyph_set_color_surface (scaled_glyph, &font->base, surface, fg_color); + else + _cairo_scaled_glyph_set_surface (scaled_glyph, &font->base, surface); + + return status; +} + +static cairo_int_status_t +_cairo_quartz_scaled_glyph_init (void *abstract_font, + cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_glyph_info_t info, + const cairo_color_t *foreground_color) +{ + cairo_quartz_scaled_font_t *font = (cairo_quartz_scaled_font_t *) abstract_font; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + + if (!status && (info & CAIRO_SCALED_GLYPH_INFO_METRICS)) + status = _cairo_quartz_init_glyph_metrics (font, scaled_glyph); + + if (!status && (info & CAIRO_SCALED_GLYPH_INFO_PATH)) + status = _cairo_quartz_init_glyph_path (font, scaled_glyph); + + if (!status && (info & (CAIRO_SCALED_GLYPH_INFO_SURFACE | + CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE ))) + status = _cairo_quartz_init_glyph_surface (font, scaled_glyph, + info, foreground_color); + + return status; +} + +static unsigned long +_cairo_quartz_ucs4_to_index (void *abstract_font, + uint32_t ucs4) +{ + cairo_quartz_scaled_font_t *font = (cairo_quartz_scaled_font_t*) abstract_font; + CGGlyph glyph[2]; + UniChar utf16[2]; + + int len = _cairo_ucs4_to_utf16 (ucs4, utf16); + CTFontGetGlyphsForCharacters (font->ctFont, utf16, glyph, len); + return glyph[0]; +} + +static cairo_int_status_t +_cairo_quartz_load_truetype_table (void *abstract_font, + unsigned long tag, + long offset, + unsigned char *buffer, + unsigned long *length) +{ + cairo_quartz_scaled_font_t *font = (cairo_quartz_scaled_font_t*) abstract_font; + CFDataRef data = CTFontCopyTable (font->ctFont, tag, kCTFontTableOptionNoOptions); + + if (!data) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (buffer == NULL) { + *length = CFDataGetLength (data); + CFRelease (data); + return CAIRO_STATUS_SUCCESS; + } + + if (CFDataGetLength (data) < offset + (long) *length) { + CFRelease (data); + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + CFDataGetBytes (data, CFRangeMake (offset, *length), buffer); + CFRelease (data); + + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_scaled_font_backend_t _cairo_quartz_scaled_font_backend = { + CAIRO_FONT_TYPE_QUARTZ, + _cairo_quartz_scaled_font_fini, + _cairo_quartz_scaled_glyph_init, + NULL, /* text_to_glyphs */ + _cairo_quartz_ucs4_to_index, + _cairo_quartz_load_truetype_table, + NULL, /*index_to_ucs4*/ + NULL, /* is_synthetic */ + NULL, /* index_to_glyph_name */ + NULL, /* load_type1_data */ + _cairo_quartz_font_has_color_glyphs +}; +/* + * private methods that the quartz surface uses + */ + +CGFontRef +_cairo_quartz_scaled_font_get_cg_font_ref (cairo_scaled_font_t *abstract_font) +{ + cairo_quartz_font_face_t *ffont = _cairo_quartz_scaled_to_face(abstract_font); + + return ffont->cgFont; +} + +CTFontRef +_cairo_quartz_scaled_font_get_ct_font (cairo_scaled_font_t *abstract_font) +{ + cairo_quartz_scaled_font_t *font = (cairo_quartz_scaled_font_t*) abstract_font; + + return font->ctFont; +} + + void + _cairo_quartz_set_antialiasing (CGContextRef cgContext, cairo_antialias_t antialias) +{ + switch (antialias) { + case CAIRO_ANTIALIAS_SUBPIXEL: + case CAIRO_ANTIALIAS_BEST: + CGContextSetShouldAntialias (cgContext, TRUE); + CGContextSetShouldSmoothFonts (cgContext, TRUE); + quartz_font_ensure_symbols (); + if (CGContextGetAllowsFontSmoothingPtr && + !CGContextGetAllowsFontSmoothingPtr (cgContext)) + CGContextSetAllowsFontSmoothing (cgContext, TRUE); + break; + case CAIRO_ANTIALIAS_NONE: + CGContextSetShouldAntialias (cgContext, FALSE); + break; + case CAIRO_ANTIALIAS_GRAY: + case CAIRO_ANTIALIAS_GOOD: + case CAIRO_ANTIALIAS_FAST: + CGContextSetShouldAntialias (cgContext, TRUE); + CGContextSetShouldSmoothFonts (cgContext, FALSE); + break; + case CAIRO_ANTIALIAS_DEFAULT: + default: + /* Don't do anything */ + break; + } + +} +/* + * compat with old ATSUI backend + */ + +/** + * cairo_quartz_font_face_create_for_atsu_font_id: + * @font_id: an ATSUFontID for the font. + * + * Creates a new font for the Quartz font backend based on an + * #ATSUFontID. This font can then be used with + * cairo_set_font_face() or cairo_scaled_font_create(). + * + * Return value: a newly created #cairo_font_face_t. Free with + * cairo_font_face_destroy() when you are done using it. + * + * Since: 1.6 + **/ +cairo_font_face_t * +cairo_quartz_font_face_create_for_atsu_font_id (ATSUFontID font_id) +{ + quartz_font_ensure_symbols(); + + if (FMGetATSFontRefFromFontPtr != NULL) { + ATSFontRef atsFont = FMGetATSFontRefFromFontPtr (font_id); + CGFontRef cgFont = CGFontCreateWithPlatformFont (&atsFont); + cairo_font_face_t *ff; + + ff = cairo_quartz_font_face_create_for_cgfont (cgFont); + + CGFontRelease (cgFont); + + return ff; + } else { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_font_face_t *)&_cairo_font_face_nil; + } +} + +/* This is the old name for the above function, exported for compat purposes */ +cairo_font_face_t *cairo_atsui_font_face_create_for_atsu_font_id (ATSUFontID font_id); + +cairo_font_face_t * +cairo_atsui_font_face_create_for_atsu_font_id (ATSUFontID font_id) +{ + return cairo_quartz_font_face_create_for_atsu_font_id (font_id); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-quartz-image-surface.c b/local/recipes/libs/cairo/source/src/cairo-quartz-image-surface.c new file mode 100644 index 0000000000..4f9bc21184 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-quartz-image-surface.c @@ -0,0 +1,395 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright � 2008 Mozilla Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Mozilla Foundation. + * + * Contributor(s): + * Vladimir Vukicevic + */ + +#include "cairoint.h" + +#include "cairo-image-surface-inline.h" +#include "cairo-quartz-image.h" +#include "cairo-quartz-private.h" +#include "cairo-surface-backend-private.h" + +#include "cairo-error-private.h" +#include "cairo-default-context-private.h" + +#define SURFACE_ERROR_NO_MEMORY (_cairo_surface_create_in_error(_cairo_error(CAIRO_STATUS_NO_MEMORY))) +#define SURFACE_ERROR_TYPE_MISMATCH (_cairo_surface_create_in_error(_cairo_error(CAIRO_STATUS_SURFACE_TYPE_MISMATCH))) +#define SURFACE_ERROR_INVALID_SIZE (_cairo_surface_create_in_error(_cairo_error(CAIRO_STATUS_INVALID_SIZE))) +#define SURFACE_ERROR_INVALID_FORMAT (_cairo_surface_create_in_error(_cairo_error(CAIRO_STATUS_INVALID_FORMAT))) + +/** + * CAIRO_HAS_QUARTZ_IMAGE_SURFACE: + * + * Defined if the Quartz image surface backend is available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.10 + **/ + +static cairo_surface_t * +_cairo_quartz_image_surface_create_similar (void *asurface, + cairo_content_t content, + int width, + int height) +{ + cairo_surface_t *isurf = + _cairo_image_surface_create_with_content (content, width, height); + cairo_surface_t *result = cairo_quartz_image_surface_create (isurf); + cairo_surface_destroy (isurf); + + return result; +} + +static cairo_surface_t * +_cairo_quartz_image_surface_create_similar_image (void *asurface, + cairo_format_t format, + int width, + int height) +{ + cairo_surface_t *isurf = cairo_image_surface_create (format, width, height); + cairo_surface_t *result = cairo_quartz_image_surface_create (isurf); + cairo_surface_destroy (isurf); + + return result; +} + +static cairo_status_t +_cairo_quartz_image_surface_finish (void *asurface) +{ + cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface; + + CGContextRelease (surface->cgContext); + if (surface->imageSurface) + cairo_surface_destroy ( (cairo_surface_t*) surface->imageSurface); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_quartz_image_surface_acquire_source_image (void *asurface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface; + + *image_out = surface->imageSurface; + *image_extra = NULL; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_image_surface_t * +_cairo_quartz_image_surface_map_to_image (void *asurface, + const cairo_rectangle_int_t *extents) +{ + cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface; + return _cairo_surface_map_to_image (&surface->imageSurface->base, extents); +} + +static cairo_int_status_t +_cairo_quartz_image_surface_unmap_image (void *asurface, + cairo_image_surface_t *image) +{ + cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface; + return _cairo_surface_unmap_image (&surface->imageSurface->base, image); +} + +static cairo_bool_t +_cairo_quartz_image_surface_get_extents (void *asurface, + cairo_rectangle_int_t *extents) +{ + cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface; + + extents->x = 0; + extents->y = 0; + extents->width = surface->width; + extents->height = surface->height; + return TRUE; +} + +static cairo_int_status_t +_cairo_quartz_image_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_quartz_image_surface_t *surface = abstract_surface; + return _cairo_surface_paint (&surface->imageSurface->base, + op, source, clip); +} + +static cairo_int_status_t +_cairo_quartz_image_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_quartz_image_surface_t *surface = abstract_surface; + return _cairo_surface_mask (&surface->imageSurface->base, + op, source, mask, clip); +} + +static cairo_int_status_t +_cairo_quartz_image_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_quartz_image_surface_t *surface = abstract_surface; + return _cairo_surface_stroke (&surface->imageSurface->base, + op, source, path, + style, ctm, ctm_inverse, + tolerance, antialias, clip); +} + +static cairo_int_status_t +_cairo_quartz_image_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_quartz_image_surface_t *surface = abstract_surface; + return _cairo_surface_fill (&surface->imageSurface->base, + op, source, path, + fill_rule, tolerance, antialias, + clip); +} + +static cairo_int_status_t +_cairo_quartz_image_surface_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_quartz_image_surface_t *surface = abstract_surface; + return _cairo_surface_show_text_glyphs (&surface->imageSurface->base, + op, source, + NULL, 0, + glyphs, num_glyphs, + NULL, 0, 0, + scaled_font, clip); +} + + +static const cairo_surface_backend_t cairo_quartz_image_surface_backend = { + CAIRO_SURFACE_TYPE_QUARTZ_IMAGE, + _cairo_quartz_image_surface_finish, + + _cairo_default_context_create, + + _cairo_quartz_image_surface_create_similar, + _cairo_quartz_image_surface_create_similar_image, + _cairo_quartz_image_surface_map_to_image, + _cairo_quartz_image_surface_unmap_image, + + _cairo_surface_default_source, + _cairo_quartz_image_surface_acquire_source_image, + NULL, /* release_source_image */ + NULL, /* snapshot */ + + NULL, /* copy_page */ + NULL, /* show_page */ + + _cairo_quartz_image_surface_get_extents, + NULL, /* get_font_options */ + + NULL, /*surface_flush */ + NULL, /* mark_dirty_rectangle */ + + _cairo_quartz_image_surface_paint, + _cairo_quartz_image_surface_mask, + _cairo_quartz_image_surface_stroke, + _cairo_quartz_image_surface_fill, + NULL, /* fill-stroke */ + _cairo_quartz_image_surface_glyphs, +}; + +/** + * cairo_quartz_image_surface_create: + * @image_surface: a cairo image surface to wrap with a quartz image surface + * + * Creates a Quartz surface backed by a CGBitmapContext that references the + * given image surface. The resulting surface can be rendered quickly + * when used as a source when rendering to a #cairo_quartz_surface. + * + * Return value: the newly created surface. + * + * Since: 1.6 + **/ +cairo_surface_t * +cairo_quartz_image_surface_create (cairo_surface_t *surface) +{ + cairo_quartz_image_surface_t *qisurf; + cairo_image_surface_t *image_surface; + int width, height, stride; + cairo_format_t format; + CGBitmapInfo bitinfo = kCGBitmapByteOrder32Host; + CGColorSpaceRef colorspace; + + if (surface->status) + return surface; + + if (! _cairo_surface_is_image (surface)) + return SURFACE_ERROR_TYPE_MISMATCH; + + image_surface = (cairo_image_surface_t*) surface; + width = image_surface->width; + height = image_surface->height; + stride = image_surface->stride; + format = image_surface->format; + + if (!_cairo_quartz_verify_surface_size(width, height)) + return SURFACE_ERROR_INVALID_SIZE; + + if (width == 0 || height == 0) + return SURFACE_ERROR_INVALID_SIZE; + + if (format != CAIRO_FORMAT_ARGB32 && format != CAIRO_FORMAT_RGB24) + return SURFACE_ERROR_INVALID_FORMAT; + + qisurf = _cairo_calloc (sizeof(cairo_quartz_image_surface_t)); + if (qisurf == NULL) + return SURFACE_ERROR_NO_MEMORY; + + _cairo_surface_init (&qisurf->base, + &cairo_quartz_image_surface_backend, + NULL, /* device */ + _cairo_content_from_format (format), + FALSE); /* is_vector */ + + if (_cairo_surface_is_quartz (surface) || _cairo_surface_is_quartz_image (surface)) { + CGContextRef context = cairo_quartz_surface_get_cg_context(surface); + colorspace = _cairo_quartz_create_color_space (context); + } + else { + colorspace = CGDisplayCopyColorSpace (CGMainDisplayID ()); + } + + bitinfo |= format == CAIRO_FORMAT_ARGB32 ? kCGImageAlphaPremultipliedFirst : kCGImageAlphaNoneSkipFirst; + + qisurf->width = width; + qisurf->height = height; + + qisurf->cgContext = CGBitmapContextCreate (image_surface->data, width, height, 8, image_surface->stride, + colorspace, bitinfo); + qisurf->imageSurface = (cairo_image_surface_t*) cairo_surface_reference(surface); + + CGColorSpaceRelease (colorspace); + return &qisurf->base; +} + + +/** + * cairo_quartz_image_surface_get_image: + * @surface: a #cairo_surface_t + * + * Returns a #cairo_surface_t image surface that refers to the same bits + * as the image of the quartz surface. + * + * Return value: a #cairo_surface_t (owned by the quartz #cairo_surface_t), + * or %NULL if the quartz surface is not an image surface. + * + * Since: 1.6 + **/ +cairo_surface_t * +cairo_quartz_image_surface_get_image (cairo_surface_t *surface) +{ + cairo_quartz_image_surface_t *qsurface = (cairo_quartz_image_surface_t*) surface; + + /* Throw an error for a non-quartz surface */ + if (! _cairo_surface_is_quartz (surface)) { + return SURFACE_ERROR_TYPE_MISMATCH; + } + + return (cairo_surface_t*) qsurface->imageSurface; +} + +/* + * _cairo_quartz_image_surface_get_cg_context: + * @surface: the Cairo Quartz surface + * + * Returns the CGContextRef that the given Quartz surface is backed + * by. + * + * A call to cairo_surface_flush() is required before using the + * CGContextRef to ensure that all pending drawing operations are + * finished and to restore any temporary modification cairo has made + * to its state. A call to cairo_surface_mark_dirty() is required + * after the state or the content of the CGContextRef has been + * modified. + * + * Return value: the CGContextRef for the given surface. + * + **/ +CGContextRef +_cairo_quartz_image_surface_get_cg_context (cairo_surface_t *surface) +{ + if (surface && _cairo_surface_is_quartz_image (surface)) { + cairo_quartz_surface_t *quartz = (cairo_quartz_surface_t *) surface; + return quartz->cgContext; + } else + return NULL; +} + +/* + * _cairo_surface_is_quartz_image: + * @surface: a #cairo_surface_t + * + * Checks if a surface is a #cairo_quartz_surface_t + * + * Return value: True if the surface is an quartz surface + **/ +cairo_bool_t +_cairo_surface_is_quartz_image (const cairo_surface_t *surface) { + return surface->backend == &cairo_quartz_image_surface_backend; +} + +cairo_bool_t +_cairo_quartz_image_surface_is_zero (const cairo_quartz_image_surface_t *surface) { + return surface->width == 0 || surface->height == 0; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-quartz-image.h b/local/recipes/libs/cairo/source/src/cairo-quartz-image.h new file mode 100644 index 0000000000..0dd5abb4fd --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-quartz-image.h @@ -0,0 +1,59 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2008 Mozilla Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Mozilla Foundation. + * + * Contributor(s): + * Vladimir Vukicevic + */ + +#ifndef CAIRO_QUARTZ_IMAGE_H +#define CAIRO_QUARTZ_IMAGE_H + +#include "cairo.h" + +#if CAIRO_HAS_QUARTZ_IMAGE_SURFACE + +#include + +CAIRO_BEGIN_DECLS + +cairo_public cairo_surface_t * +cairo_quartz_image_surface_create (cairo_surface_t *image_surface); + +cairo_public cairo_surface_t * +cairo_quartz_image_surface_get_image (cairo_surface_t *surface); + +CAIRO_END_DECLS + +#else /* CAIRO_HAS_QUARTZ_IMAGE_SURFACE */ +# error Cairo was not compiled with support for the quartz-image backend +#endif /* CAIRO_HAS_QUARTZ_IMAGE_SURFACE */ + +#endif /* CAIRO_QUARTZ_IMAGE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-quartz-private.h b/local/recipes/libs/cairo/source/src/cairo-quartz-private.h new file mode 100644 index 0000000000..bdfdf8c2bb --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-quartz-private.h @@ -0,0 +1,122 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 Calum Robinson + * Copyright (C) 2006,2007 Mozilla Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Calum Robinson + * + * Contributor(s): + * Calum Robinson + * Vladimir Vukicevic + */ + +#ifndef CAIRO_QUARTZ_PRIVATE_H +#define CAIRO_QUARTZ_PRIVATE_H + +#include "cairoint.h" + +#if CAIRO_HAS_QUARTZ_SURFACE +#include "cairo-quartz.h" +#include "cairo-surface-clipper-private.h" + +#ifndef CGFLOAT_DEFINED +/* On 10.4, Quartz APIs used float instead of CGFloat */ +typedef float CGFloat; +#endif + +typedef CGFloat cairo_quartz_float_t; + +typedef enum { + DO_DIRECT, + DO_SHADING, + DO_IMAGE, + DO_LAYER +} cairo_quartz_action_t; + +/* define CTFontRef for pre-10.5 SDKs */ +typedef const struct __CTFont *CTFontRef; + +typedef struct cairo_quartz_surface { + cairo_surface_t base; + + CGContextRef cgContext; + CGAffineTransform cgContextBaseCTM; + +#if MAC_OS_X_VERSION_MIN_REQUIRED < 10600 + void *imageData; +#endif + + cairo_surface_clipper_t clipper; + cairo_rectangle_int_t extents; + cairo_rectangle_int_t virtual_extents; + CGLayerRef cgLayer; +} cairo_quartz_surface_t; + +typedef struct cairo_quartz_image_surface { + cairo_surface_t base; + + int width, height; + CGContextRef cgContext; + cairo_image_surface_t *imageSurface; +} cairo_quartz_image_surface_t; + +cairo_private cairo_bool_t +_cairo_quartz_verify_surface_size(int width, int height); + +cairo_private cairo_bool_t +_cairo_surface_is_quartz (const cairo_surface_t *surface); + +cairo_private cairo_bool_t +_cairo_surface_is_quartz_image (const cairo_surface_t *surface); +cairo_private cairo_bool_t +_cairo_quartz_image_surface_is_zero (const cairo_quartz_image_surface_t *surface); + +cairo_private CGColorSpaceRef +_cairo_quartz_create_color_space (CGContextRef context); +cairo_private CGContextRef +_cairo_quartz_image_surface_get_cg_context (cairo_surface_t *surface); + +cairo_private CGFontRef +_cairo_quartz_scaled_font_get_cg_font_ref (cairo_scaled_font_t *sfont); +cairo_private CTFontRef +_cairo_quartz_scaled_font_get_ct_font (cairo_scaled_font_t *sfont); +cairo_private cairo_font_face_t* +_cairo_quartz_font_face_create_for_ctfont (CTFontRef ctFont); +cairo_private void +_cairo_quartz_set_antialiasing (CGContextRef context, cairo_antialias_t antialias); + +cairo_status_t _cairo_quartz_surface_to_png (cairo_surface_t *abstract_surface, const char *dest); +cairo_private void _cairo_quartz_image_to_png (CGImageRef, const char *dest); + +#else + +# error Cairo was not compiled with support for the quartz backend + +#endif /* CAIRO_HAS_QUARTZ_SURFACE */ + +#endif /* CAIRO_QUARTZ_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-quartz-surface.c b/local/recipes/libs/cairo/source/src/cairo-quartz-surface.c new file mode 100644 index 0000000000..0a5c72f0d5 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-quartz-surface.c @@ -0,0 +1,2470 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright � 2006, 2007 Mozilla Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Mozilla Foundation. + * + * Contributor(s): + * Vladimir Vukicevic + */ + +#include "cairoint.h" + +#include "cairo-quartz-private.h" +#include "cairo-quartz-image.h" + +#include "cairo-composite-rectangles-private.h" +#include "cairo-compositor-private.h" +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-inline.h" +#include "cairo-pattern-private.h" +#include "cairo-surface-backend-private.h" +#include "cairo-surface-clipper-private.h" +#include "cairo-recording-surface-private.h" + +#include + +#ifndef RTLD_DEFAULT +#define RTLD_DEFAULT ((void *) 0) +#endif + +#include +#include + +#undef QUARTZ_DEBUG + +#ifdef QUARTZ_DEBUG +#define ND(_x) fprintf _x +#else +#define ND(_x) do {} while(0) +#endif + +#if MAC_OS_X_VERSION_MIN_REQUIRED < 1080 +#define FONT_ORIENTATION_HORIZONTAL kCTFontHorizontalOrientation +#else +#define FONT_ORIENTATION_HORIZONTAL kCTFontOrientationHorizontal +#endif + +static inline cairo_bool_t +_is_quartz_surface (cairo_surface_t *surface) { + return _cairo_surface_is_quartz (surface) || _cairo_surface_is_quartz_image (surface); +} + +static inline cairo_bool_t +_cairo_quartz_surface_is_zero (cairo_quartz_surface_t* surface) { + return surface->extents.width == 0 || surface->extents.height == 0; +} + +static inline cairo_bool_t +_cairo_quartz_is_zero_surface (cairo_surface_t* surface) { + assert (_is_quartz_surface (surface)); + if (_cairo_surface_is_quartz (surface)) + return (_cairo_quartz_surface_is_zero ((cairo_quartz_surface_t*) surface)); + else + return (_cairo_quartz_image_surface_is_zero ((cairo_quartz_image_surface_t*) surface)); +} + +/** + * SECTION:cairo-quartz + * @Title: Quartz Surfaces + * @Short_Description: Rendering to Quartz surfaces + * @See_Also: #cairo_surface_t + * + * The Quartz surface is used to render cairo graphics targeting the + * Apple OS X Quartz rendering system. + **/ + +/** + * CAIRO_HAS_QUARTZ_SURFACE: + * + * Defined if the Quartz surface backend is available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.6 + **/ + +/* + * macOS Private functions + */ +typedef enum { + kCGContextTypeUnknown, + kCGContextTypePDF, + kCGContextTypePostScript, + kCGContextTypeWindow, + kCGContextTypeBitmap, + kCGContextTypeGL, + kCGContextTypeDisplayList, + kCGContextTypeKSeparation, + kCGContextTypeIOSurface, + kCGContextTypeCount +} CGContextType; + + +static bool (*CGContextGetAllowsFontSmoothingPtr) (CGContextRef) = NULL; +static unsigned int (*CGContextGetTypePtr) (CGContextRef) = NULL; +static void +quartz_ensure_symbols() +{ + static cairo_bool_t symbol_lookup_done = FALSE; + if (!symbol_lookup_done) { + CGContextGetTypePtr = dlsym (RTLD_DEFAULT, "CGContextGetType"); + CGContextGetAllowsFontSmoothingPtr = + dlsym (RTLD_DEFAULT, "CGContextGetAllowsFontSmoothing"); + symbol_lookup_done = TRUE; + } +} + +typedef struct +{ + cairo_surface_t base; + CGImageRef image; +} cairo_quartz_snapshot_t; + +static cairo_surface_t* _cairo_quartz_snapshot_create (cairo_surface_t *surface); +static cairo_status_t _cairo_quartz_snapshot_finish (void *surface); +static CGImageRef _cairo_quartz_surface_snapshot_get_image (cairo_surface_t *surface); + +static const cairo_surface_backend_t cairo_quartz_snapshot_backend = { + CAIRO_INTERNAL_SURFACE_TYPE_QUARTZ_SNAPSHOT, + _cairo_quartz_snapshot_finish, +}; + +static cairo_quartz_surface_t * +_cairo_quartz_surface_create_internal (CGContextRef cgContext, + cairo_content_t content, + unsigned int width, + unsigned int height); + +CGColorSpaceRef +_cairo_quartz_create_color_space (CGContextRef context) +{ + CGColorSpaceRef color_space = NULL; + CGContextType cgtype = kCGContextTypeUnknown; + + if (context) + { + if (CGBitmapContextGetBitsPerPixel (context) < 24) + return 0; + + quartz_ensure_symbols(); + cgtype = CGContextGetTypePtr (context); + switch (cgtype) + { + case kCGContextTypeUnknown: + break; + case kCGContextTypePDF: + color_space = CGColorSpaceCreateDeviceRGB (); + break; + case kCGContextTypePostScript: + case kCGContextTypeWindow: + break; + case kCGContextTypeBitmap: + color_space = CGBitmapContextGetColorSpace (context); + color_space = CGColorSpaceRetain (color_space); + break; + case kCGContextTypeGL: + case kCGContextTypeDisplayList: + case kCGContextTypeKSeparation: + case kCGContextTypeIOSurface: + case kCGContextTypeCount: + default: + break; + } + if (color_space) + return color_space; + } + if (!color_space) + color_space = CGDisplayCopyColorSpace (CGMainDisplayID ()); + + if (!color_space) + color_space = CGColorSpaceCreateDeviceRGB (); + + return color_space; +} + +static CGColorRef +_cairo_quartz_create_cgcolor (CGColorSpaceRef cs, CGFloat red, CGFloat green, + CGFloat blue, CGFloat alpha) +{ + CGFloat colors[4] = { red, green, blue, alpha }; + CGColorRef cgc; + if (!CGColorSpaceRetain(cs)) + { + cs = _cairo_quartz_create_color_space (NULL); + } + cgc = CGColorCreate (cs, colors); + CGColorSpaceRelease (cs); + return cgc; +} + +static CGColorRef +_cairo_quartz_black (CGColorSpaceRef cs) +{ + return _cairo_quartz_create_cgcolor (cs, 0.0, 0.0, 0.0, 1.0); +} + +static inline cairo_bool_t +_cairo_quartz_is_cgcontext_bitmap_context (CGContextRef cgc) +{ + if (unlikely (cgc == NULL)) + return FALSE; + + quartz_ensure_symbols (); + if (likely (CGContextGetTypePtr)) { + /* 4 is the type value of a bitmap context */ + return CGContextGetTypePtr (cgc) == kCGContextTypeBitmap; + } + + /* This will cause a (harmless) warning to be printed if called on a non-bitmap context */ + return CGBitmapContextGetBitsPerPixel (cgc) != 0; +} + +/* CoreGraphics limitation with flipped CTM surfaces: height must be less than signed 16-bit max */ + +#define CG_MAX_HEIGHT SHRT_MAX +#define CG_MAX_WIDTH USHRT_MAX + +/* is the desired size of the surface within bounds? */ +cairo_bool_t +_cairo_quartz_verify_surface_size (int width, int height) +{ + /* hmmm, allow width, height == 0 ? */ + if (width < 0 || height < 0) + return FALSE; + + if (width > CG_MAX_WIDTH || height > CG_MAX_HEIGHT) + return FALSE; + + return TRUE; +} + +/* + * Cairo path -> Quartz path conversion helpers + */ + +/* cairo path -> execute in context */ +static cairo_status_t +_cairo_path_to_quartz_context_move_to (void *closure, + const cairo_point_t *point) +{ + //ND ((stderr, "moveto: %f %f\n", _cairo_fixed_to_double (point->x), _cairo_fixed_to_double (point->y))); + double x = _cairo_fixed_to_double (point->x); + double y = _cairo_fixed_to_double (point->y); + + CGContextMoveToPoint (closure, x, y); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_path_to_quartz_context_line_to (void *closure, + const cairo_point_t *point) +{ + //ND ((stderr, "lineto: %f %f\n", _cairo_fixed_to_double (point->x), _cairo_fixed_to_double (point->y))); + double x = _cairo_fixed_to_double (point->x); + double y = _cairo_fixed_to_double (point->y); + + CGContextAddLineToPoint (closure, x, y); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_path_to_quartz_context_curve_to (void *closure, + const cairo_point_t *p0, + const cairo_point_t *p1, + const cairo_point_t *p2) +{ + //ND ((stderr, "curveto: %f,%f %f,%f %f,%f\n", + // _cairo_fixed_to_double (p0->x), _cairo_fixed_to_double (p0->y), + // _cairo_fixed_to_double (p1->x), _cairo_fixed_to_double (p1->y), + // _cairo_fixed_to_double (p2->x), _cairo_fixed_to_double (p2->y))); + double x0 = _cairo_fixed_to_double (p0->x); + double y0 = _cairo_fixed_to_double (p0->y); + double x1 = _cairo_fixed_to_double (p1->x); + double y1 = _cairo_fixed_to_double (p1->y); + double x2 = _cairo_fixed_to_double (p2->x); + double y2 = _cairo_fixed_to_double (p2->y); + + CGContextAddCurveToPoint (closure, x0, y0, x1, y1, x2, y2); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_path_to_quartz_context_close_path (void *closure) +{ + //ND ((stderr, "closepath\n")); + CGContextClosePath (closure); + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_quartz_cairo_path_to_quartz_context (const cairo_path_fixed_t *path, + CGContextRef closure) +{ + cairo_status_t status; + + CGContextBeginPath (closure); + status = _cairo_path_fixed_interpret (path, + _cairo_path_to_quartz_context_move_to, + _cairo_path_to_quartz_context_line_to, + _cairo_path_to_quartz_context_curve_to, + _cairo_path_to_quartz_context_close_path, + closure); + + assert (status == CAIRO_STATUS_SUCCESS); +} + +/* + * Misc helpers/callbacks + */ + + +static CGBlendMode +_cairo_quartz_cairo_operator_to_quartz_blend (cairo_operator_t op) +{ + switch (op) { + case CAIRO_OPERATOR_MULTIPLY: + return kCGBlendModeMultiply; + case CAIRO_OPERATOR_SCREEN: + return kCGBlendModeScreen; + case CAIRO_OPERATOR_OVERLAY: + return kCGBlendModeOverlay; + case CAIRO_OPERATOR_DARKEN: + return kCGBlendModeDarken; + case CAIRO_OPERATOR_LIGHTEN: + return kCGBlendModeLighten; + case CAIRO_OPERATOR_COLOR_DODGE: + return kCGBlendModeColorDodge; + case CAIRO_OPERATOR_COLOR_BURN: + return kCGBlendModeColorBurn; + case CAIRO_OPERATOR_HARD_LIGHT: + return kCGBlendModeHardLight; + case CAIRO_OPERATOR_SOFT_LIGHT: + return kCGBlendModeSoftLight; + case CAIRO_OPERATOR_DIFFERENCE: + return kCGBlendModeDifference; + case CAIRO_OPERATOR_EXCLUSION: + return kCGBlendModeExclusion; + case CAIRO_OPERATOR_HSL_HUE: + return kCGBlendModeHue; + case CAIRO_OPERATOR_HSL_SATURATION: + return kCGBlendModeSaturation; + case CAIRO_OPERATOR_HSL_COLOR: + return kCGBlendModeColor; + case CAIRO_OPERATOR_HSL_LUMINOSITY: + return kCGBlendModeLuminosity; + + case CAIRO_OPERATOR_CLEAR: + return kCGBlendModeClear; + case CAIRO_OPERATOR_SOURCE: + return kCGBlendModeCopy; + case CAIRO_OPERATOR_OVER: + return kCGBlendModeNormal; + case CAIRO_OPERATOR_IN: + return kCGBlendModeSourceIn; + case CAIRO_OPERATOR_OUT: + return kCGBlendModeSourceOut; + case CAIRO_OPERATOR_ATOP: + return kCGBlendModeSourceAtop; + case CAIRO_OPERATOR_DEST_OVER: + return kCGBlendModeDestinationOver; + case CAIRO_OPERATOR_DEST_IN: + return kCGBlendModeDestinationIn; + case CAIRO_OPERATOR_DEST_OUT: + return kCGBlendModeDestinationOut; + case CAIRO_OPERATOR_DEST_ATOP: + return kCGBlendModeDestinationAtop; + case CAIRO_OPERATOR_XOR: + return kCGBlendModeXOR; + case CAIRO_OPERATOR_ADD: + return kCGBlendModePlusLighter; + case CAIRO_OPERATOR_DEST: + case CAIRO_OPERATOR_SATURATE: + default: + ASSERT_NOT_REACHED; + } +} + +static cairo_int_status_t +_cairo_cgcontext_set_cairo_operator (CGContextRef context, cairo_operator_t op) +{ + CGBlendMode blendmode; + + assert (op != CAIRO_OPERATOR_DEST); + + /* Quartz doesn't support SATURATE at all. COLOR_DODGE and + * COLOR_BURN in Quartz follow the ISO32000 definition, but cairo + * uses the definition from the Adobe Supplement. Also fallback + * on SOFT_LIGHT and HSL_HUE, because their results are + * significantly different from those provided by pixman. + */ + if (op == CAIRO_OPERATOR_SATURATE || + op == CAIRO_OPERATOR_SOFT_LIGHT || + op == CAIRO_OPERATOR_HSL_HUE || + op == CAIRO_OPERATOR_COLOR_DODGE || + op == CAIRO_OPERATOR_COLOR_BURN) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + blendmode = _cairo_quartz_cairo_operator_to_quartz_blend (op); + CGContextSetBlendMode (context, blendmode); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_quartz_surface_set_cairo_operator (cairo_quartz_surface_t *surface, cairo_operator_t op) +{ + ND((stderr, "%p _cairo_quartz_surface_set_cairo_operator %d\n", surface, op)); + + /* When the destination has no color components, we can avoid some + * fallbacks, but we have to workaround operators which behave + * differently in Quartz. */ + if (surface->base.content == CAIRO_CONTENT_ALPHA) { + assert (op != CAIRO_OPERATOR_ATOP); /* filtered by surface layer */ + + if (op == CAIRO_OPERATOR_SOURCE || + op == CAIRO_OPERATOR_IN || + op == CAIRO_OPERATOR_OUT || + op == CAIRO_OPERATOR_DEST_IN || + op == CAIRO_OPERATOR_DEST_ATOP || + op == CAIRO_OPERATOR_XOR) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + if (op == CAIRO_OPERATOR_DEST_OVER) + op = CAIRO_OPERATOR_OVER; + else if (op == CAIRO_OPERATOR_SATURATE) + op = CAIRO_OPERATOR_ADD; + else if (op == CAIRO_OPERATOR_COLOR_DODGE) + op = CAIRO_OPERATOR_OVER; + else if (op == CAIRO_OPERATOR_COLOR_BURN) + op = CAIRO_OPERATOR_OVER; + } + + return _cairo_cgcontext_set_cairo_operator (surface->cgContext, op); +} + +static inline CGLineCap +_cairo_quartz_cairo_line_cap_to_quartz (cairo_line_cap_t ccap) +{ + switch (ccap) { + default: + ASSERT_NOT_REACHED; + + case CAIRO_LINE_CAP_BUTT: + return kCGLineCapButt; + + case CAIRO_LINE_CAP_ROUND: + return kCGLineCapRound; + + case CAIRO_LINE_CAP_SQUARE: + return kCGLineCapSquare; + } +} + +static inline CGLineJoin +_cairo_quartz_cairo_line_join_to_quartz (cairo_line_join_t cjoin) +{ + switch (cjoin) { + default: + ASSERT_NOT_REACHED; + + case CAIRO_LINE_JOIN_MITER: + return kCGLineJoinMiter; + + case CAIRO_LINE_JOIN_ROUND: + return kCGLineJoinRound; + + case CAIRO_LINE_JOIN_BEVEL: + return kCGLineJoinBevel; + } +} + +static inline CGInterpolationQuality +_cairo_quartz_filter_to_quartz (cairo_filter_t filter) +{ + /* The CGInterpolationQuality enumeration values seem to have the + * following meaning: + * - kCGInterpolationNone: nearest neighbor + * - kCGInterpolationLow: bilinear + * - kCGInterpolationHigh: bicubic? Lanczos? + */ + + switch (filter) { + case CAIRO_FILTER_NEAREST: + case CAIRO_FILTER_FAST: + return kCGInterpolationNone; + + case CAIRO_FILTER_BEST: + return kCGInterpolationHigh; + + case CAIRO_FILTER_GOOD: + case CAIRO_FILTER_BILINEAR: + return kCGInterpolationLow; + + case CAIRO_FILTER_GAUSSIAN: + return kCGInterpolationDefault; + + default: + ASSERT_NOT_REACHED; + return kCGInterpolationDefault; + } +} + +static inline void +_cairo_quartz_cairo_matrix_to_quartz (const cairo_matrix_t *src, + CGAffineTransform *dst) +{ + dst->a = src->xx; + dst->b = src->yx; + dst->c = src->xy; + dst->d = src->yy; + dst->tx = src->x0; + dst->ty = src->y0; +} + + +/* + * Source -> Quartz setup and finish functions + */ + +static void +ComputeGradientValue (void *info, + const cairo_quartz_float_t *in, + cairo_quartz_float_t *out) +{ + double fdist = *in; + const cairo_gradient_pattern_t *grad = (cairo_gradient_pattern_t*) info; + unsigned int i; + + /* Put fdist back in the 0.0..1.0 range if we're doing + * REPEAT/REFLECT + */ + if (grad->base.extend == CAIRO_EXTEND_REPEAT) { + fdist = fdist - floor (fdist); + } else if (grad->base.extend == CAIRO_EXTEND_REFLECT) { + fdist = fmod (fabs (fdist), 2.0); + if (fdist > 1.0) + fdist = 2.0 - fdist; + } + + for (i = 0; i < grad->n_stops; i++) + if (grad->stops[i].offset > fdist) + break; + + if (i == 0 || i == grad->n_stops) { + if (i == grad->n_stops) + --i; + out[0] = grad->stops[i].color.red; + out[1] = grad->stops[i].color.green; + out[2] = grad->stops[i].color.blue; + out[3] = grad->stops[i].color.alpha; + } else { + cairo_quartz_float_t ax = grad->stops[i-1].offset; + cairo_quartz_float_t bx = grad->stops[i].offset - ax; + cairo_quartz_float_t bp = (fdist - ax)/bx; + cairo_quartz_float_t ap = 1.0 - bp; + + out[0] = + grad->stops[i-1].color.red * ap + + grad->stops[i].color.red * bp; + out[1] = + grad->stops[i-1].color.green * ap + + grad->stops[i].color.green * bp; + out[2] = + grad->stops[i-1].color.blue * ap + + grad->stops[i].color.blue * bp; + out[3] = + grad->stops[i-1].color.alpha * ap + + grad->stops[i].color.alpha * bp; + } +} + +static const cairo_quartz_float_t gradient_output_value_ranges[8] = { + 0.f, 1.f, 0.f, 1.f, 0.f, 1.f, 0.f, 1.f +}; +static const CGFunctionCallbacks gradient_callbacks = { + 0, ComputeGradientValue, (CGFunctionReleaseInfoCallback) cairo_pattern_destroy +}; + +/* Quartz computes a small number of samples of the gradient color + * function. On MacOS X 10.5 it apparently computes only 1024 + * samples. */ +#define MAX_GRADIENT_RANGE 1024 + +static CGFunctionRef +CairoQuartzCreateGradientFunction (const cairo_gradient_pattern_t *gradient, + const cairo_rectangle_int_t *extents, + cairo_circle_double_t *start, + cairo_circle_double_t *end) +{ + cairo_pattern_t *pat; + cairo_quartz_float_t input_value_range[2]; + + if (gradient->base.extend != CAIRO_EXTEND_NONE) { + double bounds_x1, bounds_x2, bounds_y1, bounds_y2; + double t[2], tolerance; + + tolerance = fabs (_cairo_matrix_compute_determinant (&gradient->base.matrix)); + tolerance /= _cairo_matrix_transformed_circle_major_axis (&gradient->base.matrix, 1); + + bounds_x1 = extents->x; + bounds_y1 = extents->y; + bounds_x2 = extents->x + extents->width; + bounds_y2 = extents->y + extents->height; + _cairo_matrix_transform_bounding_box (&gradient->base.matrix, + &bounds_x1, &bounds_y1, + &bounds_x2, &bounds_y2, + NULL); + + _cairo_gradient_pattern_box_to_parameter (gradient, + bounds_x1, bounds_y1, + bounds_x2, bounds_y2, + tolerance, + t); + + if (gradient->base.extend == CAIRO_EXTEND_PAD) { + t[0] = MAX (t[0], -0.5); + t[1] = MIN (t[1], 1.5); + } else if (t[1] - t[0] > MAX_GRADIENT_RANGE) + return NULL; + + /* set the input range for the function -- the function knows how + to map values outside of 0.0 .. 1.0 to the correct color */ + input_value_range[0] = t[0]; + input_value_range[1] = t[1]; + } else { + input_value_range[0] = 0; + input_value_range[1] = 1; + } + + _cairo_gradient_pattern_interpolate (gradient, input_value_range[0], start); + _cairo_gradient_pattern_interpolate (gradient, input_value_range[1], end); + + if (_cairo_pattern_create_copy (&pat, &gradient->base)) + return NULL; + + return CGFunctionCreate (pat, + 1, + input_value_range, + 4, + gradient_output_value_ranges, + &gradient_callbacks); +} + +static cairo_status_t +_cairo_surface_to_cgimage (cairo_surface_t *source, + cairo_rectangle_int_t *extents, + cairo_format_t format, + cairo_matrix_t *matrix, + const cairo_clip_t *clip, + CGImageRef *image_out) +{ + cairo_status_t status; + cairo_quartz_image_surface_t *image_surface; + void *image_extra; + cairo_bool_t acquired = FALSE; + + if (_is_quartz_surface (source)) { + CGContextRef cgContext = cairo_quartz_surface_get_cg_context(source); + if (_cairo_quartz_is_zero_surface (source)) { + *image_out = NULL; + return CAIRO_INT_STATUS_NOTHING_TO_DO; + } + + if (_cairo_quartz_is_cgcontext_bitmap_context (cgContext)) { + *image_out = _cairo_quartz_surface_snapshot_get_image (source); + return CAIRO_STATUS_SUCCESS; + } + + *image_out = NULL; + return CAIRO_STATUS_SURFACE_TYPE_MISMATCH; + } + + if (source->type == CAIRO_SURFACE_TYPE_RECORDING) { + cairo_image_surface_t *surface = + (cairo_image_surface_t*)cairo_image_surface_create (format, extents->width, + extents->height); + if (unlikely (surface->base.status)) { + status = surface->base.status; + cairo_surface_destroy (&surface->base); + return status; + } + + status = _cairo_recording_surface_replay_with_clip (source, + matrix, + &surface->base, + NULL); + if (unlikely (status)) { + cairo_surface_destroy (&surface->base); + return status; + } + + image_surface = + (cairo_quartz_image_surface_t*)cairo_quartz_image_surface_create (&surface->base); + cairo_matrix_init_identity (matrix); + } + else { + cairo_image_surface_t *surface; + status = _cairo_surface_acquire_source_image (source, &surface, + &image_extra); + if (unlikely (status)) + return status; + image_surface = + (cairo_quartz_image_surface_t*)cairo_quartz_image_surface_create (&surface->base); + status = image_surface->base.status; + if (status) + _cairo_surface_release_source_image (source, surface, image_extra); + else + acquired = TRUE; + } + + *image_out = NULL; + if (image_surface->width > 0 && image_surface->height > 0) { + *image_out = _cairo_quartz_surface_snapshot_get_image (&image_surface->base); + status = CAIRO_STATUS_SUCCESS; + } + + if (acquired) { + _cairo_surface_release_source_image (source, image_surface->imageSurface, image_extra); + image_surface->imageSurface = NULL; + } + cairo_surface_destroy (&image_surface->base); + + /* TODO: differentiate memory error and unsupported surface type */ + if (unlikely (*image_out == NULL)) + status = CAIRO_INT_STATUS_UNSUPPORTED; + + return status; +} + +/* Generic #cairo_pattern_t -> CGPattern function */ + +typedef struct { + CGImageRef image; + CGRect imageBounds; + cairo_bool_t do_reflect; +} SurfacePatternDrawInfo; + +static void +SurfacePatternDrawFunc (void *ainfo, CGContextRef context) +{ + SurfacePatternDrawInfo *info = (SurfacePatternDrawInfo*) ainfo; + + CGContextTranslateCTM (context, 0, info->imageBounds.size.height); + CGContextScaleCTM (context, 1, -1); + + CGContextDrawImage (context, info->imageBounds, info->image); + if (info->do_reflect) { + /* draw 3 more copies of the image, flipped. + * DrawImage draws the image according to the current Y-direction into the rectangle given + * (imageBounds); at the time of the first DrawImage above, the origin is at the bottom left + * of the base image position, and the Y axis is extending upwards. + */ + + /* Make the y axis extend downwards, and draw a flipped image below */ + CGContextScaleCTM (context, 1, -1); + CGContextDrawImage (context, info->imageBounds, info->image); + + /* Shift over to the right, and flip vertically (translation is 2x, + * since we'll be flipping and thus rendering the rectangle "backwards" + */ + CGContextTranslateCTM (context, 2 * info->imageBounds.size.width, 0); + CGContextScaleCTM (context, -1, 1); + CGContextDrawImage (context, info->imageBounds, info->image); + + /* Then unflip the Y-axis again, and draw the image above the point. */ + CGContextScaleCTM (context, 1, -1); + CGContextDrawImage (context, info->imageBounds, info->image); + } +} + +static void +SurfacePatternReleaseInfoFunc (void *ainfo) +{ + SurfacePatternDrawInfo *info = (SurfacePatternDrawInfo*) ainfo; + + CGImageRelease (info->image); + free (info); +} + +static cairo_int_status_t +_cairo_quartz_cairo_repeating_surface_pattern_to_quartz (cairo_quartz_surface_t *surface, + const cairo_pattern_t *source, + const cairo_clip_t *clip, + CGPatternRef *cgpat) +{ + cairo_surface_pattern_t *spattern = (cairo_surface_pattern_t *) source; + cairo_surface_t *pat_surf = spattern->surface; + cairo_rectangle_int_t extents; + cairo_format_t format = _cairo_format_from_content (surface->base.content); + + CGImageRef image; + CGRect pbounds; + CGAffineTransform ptransform, stransform; + CGPatternCallbacks cb = { 0, + SurfacePatternDrawFunc, + SurfacePatternReleaseInfoFunc }; + SurfacePatternDrawInfo *info; + cairo_quartz_float_t rw, rh; + cairo_status_t status; + cairo_bool_t is_bounded = _cairo_surface_get_extents (pat_surf, &extents); + cairo_matrix_t m = spattern->base.matrix; + + /* SURFACE is the only type we'll handle here */ + assert (source->type == CAIRO_PATTERN_TYPE_SURFACE); + + if (pat_surf->type != CAIRO_SURFACE_TYPE_RECORDING) + assert (is_bounded); + + status = _cairo_surface_to_cgimage (pat_surf, &extents, format, + &m, clip, &image); + + if (unlikely (status)) + return status; + + info = _cairo_calloc (sizeof (SurfacePatternDrawInfo)); + if (unlikely (!info)) + { + CGImageRelease (image); + return CAIRO_STATUS_NO_MEMORY; + } + + info->image = image; + info->imageBounds = CGRectMake (0, 0, extents.width, extents.height); + info->do_reflect = FALSE; + + pbounds.origin.x = 0; + pbounds.origin.y = 0; + + switch (spattern->base.extend) { + case CAIRO_EXTEND_NONE: + case CAIRO_EXTEND_PAD: + case CAIRO_EXTEND_REPEAT: + pbounds.size.width = extents.width; + pbounds.size.height = extents.height; + break; + case CAIRO_EXTEND_REFLECT: + pbounds.size.width = 2.0 * extents.width; + pbounds.size.height = 2.0 * extents.height; + info->do_reflect = TRUE; + break; + } + rw = pbounds.size.width; + rh = pbounds.size.height; + + cairo_matrix_invert (&m); + _cairo_quartz_cairo_matrix_to_quartz (&m, &stransform); + + /* The pattern matrix is relative to the bottom left, again; the + * incoming cairo pattern matrix is relative to the upper left. + * So we take the pattern matrix and the original context matrix, + * which gives us the correct base translation/y flip. + */ + ptransform = CGAffineTransformConcat (stransform, surface->cgContextBaseCTM); + +#ifdef QUARTZ_DEBUG + ND ((stderr, " pbounds: %f %f %f %f\n", pbounds.origin.x, pbounds.origin.y, pbounds.size.width, pbounds.size.height)); + ND ((stderr, " pattern xform: t: %f %f xx: %f xy: %f yx: %f yy: %f\n", ptransform.tx, ptransform.ty, ptransform.a, ptransform.b, ptransform.c, ptransform.d)); + CGAffineTransform xform = CGContextGetCTM (surface->cgContext); + ND ((stderr, " context xform: t: %f %f xx: %f xy: %f yx: %f yy: %f\n", xform.tx, xform.ty, xform.a, xform.b, xform.c, xform.d)); +#endif + + *cgpat = CGPatternCreate (info, + pbounds, + ptransform, + rw, rh, + kCGPatternTilingConstantSpacing, /* kCGPatternTilingNoDistortion, */ + TRUE, + &cb); + + return CAIRO_STATUS_SUCCESS; +} + +/* State used during a drawing operation. */ +typedef struct { + /* The destination of the mask */ + CGContextRef cgMaskContext; + + /* The destination of the drawing of the source */ + CGContextRef cgDrawContext; + + /* The filter to be used when drawing the source */ + CGInterpolationQuality filter; + + /* Action type */ + cairo_quartz_action_t action; + + /* Destination rect */ + CGRect rect; + + /* Used with DO_SHADING, DO_IMAGE */ + CGAffineTransform transform; + + /* Used with DO_IMAGE */ + CGImageRef image; + + /* Used with DO_SHADING */ + CGShadingRef shading; + + /* Temporary destination for unbounded operations */ + CGLayerRef layer; + CGRect clipRect; +} cairo_quartz_drawing_state_t; + +static cairo_int_status_t +_cairo_quartz_setup_pattern_source (cairo_quartz_drawing_state_t *state, + const cairo_pattern_t *source, + cairo_quartz_surface_t *surface, + const cairo_clip_t *clip, + cairo_operator_t op) +{ + const cairo_surface_pattern_t *spat = (const cairo_surface_pattern_t *) source; + cairo_surface_t *pat_surf = spat->surface; + cairo_matrix_t m = spat->base.matrix; + cairo_format_t format = _cairo_format_from_content (surface->base.content); + cairo_rectangle_int_t extents, pattern_extents; + CGImageRef img; + + cairo_quartz_float_t patternAlpha = 1.0f; + CGColorSpaceRef patternSpace; + CGPatternRef cgpat = NULL; + cairo_int_status_t status; + CGColorRef black = _cairo_quartz_black (_cairo_quartz_create_color_space (state->cgDrawContext)); + + _cairo_surface_get_extents (&surface->base, &extents); + + if (pat_surf->backend->type == CAIRO_SURFACE_TYPE_QUARTZ) { + cairo_quartz_surface_t *quartz_surf = (cairo_quartz_surface_t *) pat_surf; + + if (quartz_surf->cgLayer && source->extend == CAIRO_EXTEND_NONE) { + cairo_matrix_invert (&m); + _cairo_quartz_cairo_matrix_to_quartz (&m, &state->transform); + state->rect = CGRectMake (0, 0, quartz_surf->extents.width, quartz_surf->extents.height); + state->layer = quartz_surf->cgLayer; + state->action = DO_LAYER; + return CAIRO_STATUS_SUCCESS; + } + } + + status = _cairo_surface_to_cgimage (pat_surf, &extents, format, + &m, clip, &img); // Note that only pat_surf will get used! + if (unlikely (status)) + return status; + + state->image = img; + + if (state->filter == kCGInterpolationNone && _cairo_matrix_is_translation (&m)) { + m.x0 = -ceil (m.x0 - 0.5); + m.y0 = -ceil (m.y0 - 0.5); + } else { + cairo_matrix_invert (&m); + } + + _cairo_quartz_cairo_matrix_to_quartz (&m, &state->transform); + + if (pat_surf->type != CAIRO_SURFACE_TYPE_RECORDING) { + cairo_bool_t is_bounded = _cairo_surface_get_extents (pat_surf, &pattern_extents); + assert (is_bounded); + } else { + _cairo_surface_get_extents (&surface->base, &pattern_extents); + } + + if (source->extend == CAIRO_EXTEND_NONE) { + int x, y; + + if (op == CAIRO_OPERATOR_SOURCE && + (pat_surf->content == CAIRO_CONTENT_ALPHA || + ! _cairo_matrix_is_integer_translation (&m, &x, &y))) + { + state->layer = CGLayerCreateWithContext (surface->cgContext, + state->clipRect.size, + NULL); + state->cgDrawContext = CGLayerGetContext (state->layer); + CGContextTranslateCTM (state->cgDrawContext, + -state->clipRect.origin.x, + -state->clipRect.origin.y); + } + + CGContextSetFillColorWithColor (state->cgDrawContext, black); + + state->rect = CGRectMake (0, 0, pattern_extents.width, pattern_extents.height); + state->action = DO_IMAGE; + return CAIRO_STATUS_SUCCESS; + } + + if (source->extend == CAIRO_EXTEND_REPEAT) + { + CGAffineTransform xform = CGAffineTransformConcat (CGContextGetCTM (state->cgDrawContext), + state->transform); + CGRect srcRect = CGRectMake (0, 0, extents.width, extents.height); + srcRect = CGRectApplyAffineTransform (srcRect, xform); + xform = CGAffineTransformInvert (xform); + srcRect = CGRectApplyAffineTransform (srcRect, xform); + state->rect = srcRect; + } + + status = _cairo_quartz_cairo_repeating_surface_pattern_to_quartz (surface, source, clip, &cgpat); + if (unlikely (status)) + return status; + + patternSpace = CGColorSpaceCreatePattern (NULL); + /* To pass pthread-same-source. */ + if (source->extend == CAIRO_EXTEND_REPEAT) + CGContextSetInterpolationQuality(state->cgDrawContext, state->filter); + CGContextSetFillColorSpace (state->cgDrawContext, patternSpace); + CGContextSetFillPattern (state->cgDrawContext, cgpat, &patternAlpha); + CGContextSetStrokeColorSpace (state->cgDrawContext, patternSpace); + CGContextSetStrokePattern (state->cgDrawContext, cgpat, &patternAlpha); + CGColorSpaceRelease (patternSpace); + + /* Quartz likes to munge the pattern phase (as yet unexplained + * why); force it to 0,0 as we've already baked in the correct + * pattern translation into the pattern matrix + */ + CGContextSetPatternPhase (state->cgDrawContext, CGSizeMake (0, 0)); + + CGPatternRelease (cgpat); + CGColorRelease (black); + + state->action = DO_DIRECT; + return CAIRO_STATUS_SUCCESS; +} + + +/* +Quartz does not support repeating gradients. We handle repeating gradients +by manually extending the gradient and repeating color stops. We need to +minimize the number of repetitions since Quartz seems to sample our color +function across the entire range, even if part of that range is not needed +for the visible area of the gradient, and it samples with some fixed resolution, +so if the gradient range is too large it samples with very low resolution and +the gradient is very coarse. _cairo_quartz_create_gradient_function computes +the number of repetitions needed based on the extents. +*/ +static cairo_int_status_t +_cairo_quartz_setup_gradient_source (cairo_quartz_drawing_state_t *state, + const cairo_gradient_pattern_t *gradient, + const cairo_rectangle_int_t *extents) +{ + cairo_matrix_t mat; + cairo_circle_double_t start, end; + CGFunctionRef gradFunc; + CGColorSpaceRef rgb; + bool extend = gradient->base.extend != CAIRO_EXTEND_NONE; + + assert (gradient->n_stops > 0); + + mat = gradient->base.matrix; + cairo_matrix_invert (&mat); + _cairo_quartz_cairo_matrix_to_quartz (&mat, &state->transform); + + gradFunc = CairoQuartzCreateGradientFunction (gradient, extents, + &start, &end); + + if (unlikely (gradFunc == NULL)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + rgb = _cairo_quartz_create_color_space (NULL); + + if (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR) { + state->shading = CGShadingCreateAxial (rgb, + CGPointMake (start.center.x, + start.center.y), + CGPointMake (end.center.x, + end.center.y), + gradFunc, + extend, extend); + } else { + state->shading = CGShadingCreateRadial (rgb, + CGPointMake (start.center.x, + start.center.y), + MAX (start.radius, 0), + CGPointMake (end.center.x, + end.center.y), + MAX (end.radius, 0), + gradFunc, + extend, extend); + } + + CGColorSpaceRelease (rgb); + CGFunctionRelease (gradFunc); + + state->action = DO_SHADING; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_quartz_setup_state (cairo_quartz_drawing_state_t *state, + cairo_composite_rectangles_t *composite) +{ + cairo_quartz_surface_t *surface = (cairo_quartz_surface_t *) composite->surface; + cairo_operator_t op = composite->op; + const cairo_pattern_t *source = &composite->source_pattern.base; + const cairo_clip_t *clip = composite->clip; + cairo_bool_t needs_temp; + cairo_status_t status; + + state->layer = NULL; + state->image = NULL; + state->shading = NULL; + state->cgDrawContext = NULL; + state->cgMaskContext = NULL; + state->layer = NULL; + + status = _cairo_surface_clipper_set_clip (&surface->clipper, clip); + if (unlikely (status)) + return status; + + status = _cairo_quartz_surface_set_cairo_operator (surface, op); + if (unlikely (status)) + return status; + + /* Save before we change the pattern, colorspace, etc. so that + * we can restore and make sure that quartz releases our + * pattern (which may be stack allocated) + */ + + CGContextSaveGState (surface->cgContext); + state->clipRect = CGContextGetClipBoundingBox (surface->cgContext); + state->clipRect = CGRectIntegral (state->clipRect); + state->rect = state->clipRect; + + state->cgMaskContext = surface->cgContext; + state->cgDrawContext = state->cgMaskContext; + + state->filter = _cairo_quartz_filter_to_quartz (source->filter); + + if (op == CAIRO_OPERATOR_CLEAR) { + CGColorRef black = _cairo_quartz_black (_cairo_quartz_create_color_space (surface->cgContext)); + CGContextSetFillColorWithColor (state->cgDrawContext, black); + + state->action = DO_DIRECT; + CGColorRelease (black); + return CAIRO_STATUS_SUCCESS; + } + + /* + * To implement mask unbounded operations Quartz needs a temporary + * surface which will be composited entirely (ignoring the mask). + * To implement source unbounded operations Quartz needs a + * temporary surface which allows extending the source to a size + * covering the whole mask, but there are some optimization + * opportunities: + * + * - CLEAR completely ignores the source, thus we can just use a + * solid color fill. + * + * - SOURCE can be implemented by drawing the source and clearing + * outside of the source as long as the two regions have no + * intersection. This happens when the source is a pixel-aligned + * rectangle. If the source is at least as big as the + * intersection between the clip rectangle and the mask + * rectangle, no clear operation is needed. + */ + needs_temp = ! _cairo_operator_bounded_by_mask (op); + + if (needs_temp) { + state->layer = CGLayerCreateWithContext (surface->cgContext, + state->clipRect.size, + NULL); + state->cgDrawContext = CGLayerGetContext (state->layer); + state->cgMaskContext = state->cgDrawContext; + CGContextTranslateCTM (state->cgDrawContext, + -state->clipRect.origin.x, + -state->clipRect.origin.y); + } + + if (source->type == CAIRO_PATTERN_TYPE_SOLID) { + cairo_solid_pattern_t *solid = (cairo_solid_pattern_t *) source; + CGColorRef color = _cairo_quartz_create_cgcolor (_cairo_quartz_create_color_space (state->cgDrawContext), + solid->color.red, + solid->color.green, + solid->color.blue, + solid->color.alpha); + + + CGContextSetStrokeColorWithColor (state->cgDrawContext, color); + CGContextSetFillColorWithColor (state->cgDrawContext, color); + + CGColorRelease (color); + state->action = DO_DIRECT; + return CAIRO_STATUS_SUCCESS; + } + + if (source->type == CAIRO_PATTERN_TYPE_LINEAR || + source->type == CAIRO_PATTERN_TYPE_RADIAL) + { + const cairo_gradient_pattern_t *gpat = (const cairo_gradient_pattern_t *)source; + cairo_rectangle_int_t extents; + + extents = surface->virtual_extents; + extents.x -= surface->base.device_transform.x0; + extents.y -= surface->base.device_transform.y0; + _cairo_rectangle_union (&extents, &surface->extents); + + return _cairo_quartz_setup_gradient_source (state, gpat, &extents); + } + + + if (source->type == CAIRO_PATTERN_TYPE_SURFACE) + return _cairo_quartz_setup_pattern_source (state, source, surface, clip, op); + + return CAIRO_INT_STATUS_UNSUPPORTED; +} + +static void +_cairo_quartz_teardown_state (cairo_quartz_drawing_state_t *state, + cairo_composite_rectangles_t *extents) +{ + cairo_quartz_surface_t *surface = (cairo_quartz_surface_t *) extents->surface; + + if (state->layer) { + if (state->action != DO_LAYER) + CGContextDrawLayerInRect (surface->cgContext, + state->clipRect, + state->layer); + CGLayerRelease (state->layer); + } + + if (state->cgMaskContext) + CGContextRestoreGState (surface->cgContext); + + if (state->image) + CGImageRelease (state->image); + + if (state->shading) + CGShadingRelease (state->shading); +} + +static inline void +_cairo_quartz_draw_cgcontext (cairo_quartz_drawing_state_t *state, + cairo_operator_t op) +{ + CGColorSpaceRef cs = _cairo_quartz_create_color_space (state->cgDrawContext); + CGColorRef transparent = _cairo_quartz_create_cgcolor (cs, 0.0, 0.0, 0.0, 0.0); //releases cs + + if (! (op == CAIRO_OPERATOR_SOURCE && + state->cgDrawContext == state->cgMaskContext)) + return; + + CGContextBeginPath (state->cgDrawContext); + CGContextAddRect (state->cgDrawContext, state->rect); + + CGContextTranslateCTM (state->cgDrawContext, 0, state->rect.size.height); + CGContextScaleCTM (state->cgDrawContext, 1, -1); + CGContextConcatCTM (state->cgDrawContext, + CGAffineTransformInvert (state->transform)); + + CGContextAddRect (state->cgDrawContext, state->clipRect); + + CGContextSetFillColorWithColor (state->cgDrawContext, transparent); + CGContextEOFillPath (state->cgDrawContext); + CGColorRelease (transparent); +} + + +static void +_cairo_quartz_draw_source (cairo_quartz_drawing_state_t *state, + cairo_operator_t op) +{ + CGContextSetShouldAntialias (state->cgDrawContext, state->filter != kCGInterpolationNone); + CGContextSetInterpolationQuality(state->cgDrawContext, state->filter); + + if (state->action == DO_DIRECT) { + CGContextFillRect (state->cgDrawContext, state->rect); + return; + } + + CGContextConcatCTM (state->cgDrawContext, state->transform); + + if (state->action == DO_SHADING) { + CGContextDrawShading (state->cgDrawContext, state->shading); + return; + } + + CGContextTranslateCTM (state->cgDrawContext, 0, state->rect.size.height); + CGContextScaleCTM (state->cgDrawContext, 1, -1); + + if (state->action == DO_IMAGE) { + CGContextDrawImage (state->cgDrawContext, state->rect, state->image); + _cairo_quartz_draw_cgcontext (state, op); + return; + } + + if (state->action == DO_LAYER) { + CGContextDrawLayerInRect (state->cgDrawContext, state->rect, state->layer); + _cairo_quartz_draw_cgcontext (state, op); + return; + } + assert (FALSE); // Unreachable +} + +static cairo_image_surface_t * +_cairo_quartz_surface_map_to_image (void *abstract_surface, + const cairo_rectangle_int_t *extents) +{ + cairo_quartz_surface_t *surface = (cairo_quartz_surface_t *) abstract_surface; + cairo_surface_t *return_surface = NULL; + unsigned int stride, bitinfo, bpp, color_comps; + CGColorSpaceRef colorspace; + unsigned char *imageData; + cairo_format_t format; + + if (_cairo_quartz_is_zero_surface (&surface->base)) + return (cairo_image_surface_t *) cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 0, 0); + + if (! _cairo_quartz_is_cgcontext_bitmap_context (surface->cgContext)) + return _cairo_image_surface_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + + bitinfo = CGBitmapContextGetBitmapInfo (surface->cgContext); + bpp = CGBitmapContextGetBitsPerPixel (surface->cgContext); + + // let's hope they don't add YUV under us + colorspace = _cairo_quartz_create_color_space (surface->cgContext); + color_comps = CGColorSpaceGetNumberOfComponents (colorspace); + CGColorSpaceRelease (colorspace); + + /* XXX TODO: We can handle many more data formats by + * converting to pixman_format_t */ + + if (bpp == 32 && color_comps == 3 && + (bitinfo & kCGBitmapAlphaInfoMask) == kCGImageAlphaPremultipliedFirst && + (bitinfo & kCGBitmapByteOrderMask) == kCGBitmapByteOrder32Host) + { + format = CAIRO_FORMAT_ARGB32; + } + else if (bpp == 32 && color_comps == 3 && + (bitinfo & kCGBitmapAlphaInfoMask) == kCGImageAlphaNoneSkipFirst && + (bitinfo & kCGBitmapByteOrderMask) == kCGBitmapByteOrder32Host) + { + format = CAIRO_FORMAT_RGB24; + } + else if (bpp == 8 && color_comps == 0) + { + format = CAIRO_FORMAT_A8; + } + else + { + return _cairo_image_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT)); + } + + imageData = CGBitmapContextGetData (surface->cgContext); + stride = CGBitmapContextGetBytesPerRow (surface->cgContext); + + imageData += extents->y * stride + extents->x * bpp / 8; + return_surface = cairo_image_surface_create_for_data (imageData, + format, + extents->width, + extents->height, + stride); + + return (cairo_image_surface_t *) return_surface; +} + +static cairo_int_status_t +_cairo_quartz_surface_unmap_image (void *abstract_surface, + cairo_image_surface_t *image) +{ + cairo_surface_finish (&image->base); + cairo_surface_destroy (&image->base); + + return CAIRO_STATUS_SUCCESS; +} + + +/* + * Cairo surface backend implementations + */ + +static cairo_status_t +_cairo_quartz_surface_finish (void *abstract_surface) +{ + cairo_quartz_surface_t *surface = (cairo_quartz_surface_t *) abstract_surface; + + ND ((stderr, "_cairo_quartz_surface_finish[%p] cgc: %p\n", surface, surface->cgContext)); + + if (_cairo_quartz_is_zero_surface (&surface->base)) + return CAIRO_STATUS_SUCCESS; + + /* Restore our saved gstate that we use to reset clipping */ + CGContextRestoreGState (surface->cgContext); + _cairo_surface_clipper_reset (&surface->clipper); + + CGContextRelease (surface->cgContext); + + surface->cgContext = NULL; + + if (surface->cgLayer) + { + CGLayerRelease (surface->cgLayer); + surface->cgLayer = NULL; + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_quartz_surface_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + cairo_quartz_surface_t *surface = (cairo_quartz_surface_t *) abstract_surface; + + //ND ((stderr, "%p _cairo_quartz_surface_acquire_source_image\n", surface)); + + *image_extra = NULL; + + *image_out = _cairo_quartz_surface_map_to_image (surface, &surface->extents); + if (unlikely (cairo_surface_status(&(*image_out)->base))) { + cairo_surface_destroy (&(*image_out)->base); + *image_out = NULL; + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_quartz_surface_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *image_extra) +{ + _cairo_quartz_surface_unmap_image (abstract_surface, image); +} + +static cairo_surface_t* +_cairo_quartz_surface_create_with_cglayer (cairo_quartz_surface_t *surface, + cairo_content_t content, + int width, int height) +{ + CGAffineTransform xform; + CGContextRef context; + CGLayerRef layer; + cairo_quartz_surface_t* new_surface; + + if (surface->cgContext == NULL || surface->cgLayer != NULL) + return NULL; + + if (width <= 0 || height <= 0) + return NULL; + + xform = CGContextGetUserSpaceToDeviceSpaceTransform (surface->cgContext); + layer = CGLayerCreateWithContext (surface->cgContext, + CGSizeMake (width * xform.a, + height * xform.d), + NULL); + + context = CGLayerGetContext (layer); + CGContextTranslateCTM (context, 0.0, height); + CGContextScaleCTM (context, xform.a, -xform.d); + new_surface = _cairo_quartz_surface_create_internal (context, content, + width, height); + if (unlikely (new_surface->base.status)) + { + CGContextRelease (context); + CGLayerRelease (layer); + return &new_surface->base; + } + new_surface->cgLayer = CGLayerRetain(layer); + CGContextRetain(context); + new_surface->virtual_extents = surface->virtual_extents; + + return &new_surface->base; +} + +static cairo_surface_t * +_cairo_quartz_surface_create_similar (void *abstract_surface, + cairo_content_t content, + int width, + int height) +{ + cairo_quartz_surface_t *surface, *similar_quartz; + cairo_surface_t *similar; + cairo_format_t format; + + // verify width and height of surface + if (!_cairo_quartz_verify_surface_size (width, height)) { + return _cairo_surface_create_in_error (_cairo_error + (CAIRO_STATUS_INVALID_SIZE)); + } + + surface = (cairo_quartz_surface_t *) abstract_surface; + if (surface->cgContext && !surface->cgLayer && !(width && height)) + _cairo_quartz_surface_create_with_cglayer (surface, content, + width, height); + + if (content == CAIRO_CONTENT_COLOR_ALPHA) + format = CAIRO_FORMAT_ARGB32; + else if (content == CAIRO_CONTENT_COLOR) + format = CAIRO_FORMAT_RGB24; + else if (content == CAIRO_CONTENT_ALPHA) + format = CAIRO_FORMAT_A8; + else + return NULL; + + similar = cairo_quartz_surface_create (format, width, height); + if (unlikely (similar->status)) + return similar; + + similar_quartz = (cairo_quartz_surface_t *) similar; + similar_quartz->virtual_extents = surface->virtual_extents; + + return similar; +} + +static cairo_bool_t +_cairo_quartz_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_quartz_surface_t *surface = (cairo_quartz_surface_t *) abstract_surface; + + *extents = surface->extents; + return TRUE; +} + +static cairo_int_status_t +_cairo_quartz_cg_paint (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents) +{ + cairo_quartz_drawing_state_t state; + cairo_int_status_t rv; + + ND ((stderr, "%p _cairo_quartz_surface_paint op %d source->type %d\n", + extents->surface, extents->op, extents->source_pattern.base.type)); + + rv = _cairo_quartz_setup_state (&state, extents); + if (unlikely (rv)) + goto BAIL; + + _cairo_quartz_draw_source (&state, extents->op); + +BAIL: + _cairo_quartz_teardown_state (&state, extents); + + ND ((stderr, "-- paint\n")); + return rv; +} + +static cairo_int_status_t +_cairo_quartz_cg_mask_with_surface (cairo_composite_rectangles_t *extents, + cairo_surface_t *mask_surf, + const cairo_matrix_t *mask_mat, + CGInterpolationQuality filter) +{ + CGRect rect; + CGImageRef img; + cairo_status_t status; + CGAffineTransform mask_matrix; + cairo_quartz_drawing_state_t state; + cairo_format_t format = _cairo_format_from_content (extents->surface->content); + cairo_rectangle_int_t dest_extents; + cairo_matrix_t m = *mask_mat; + + _cairo_surface_get_extents (extents->surface, &dest_extents); + status = _cairo_surface_to_cgimage (mask_surf, &dest_extents, format, + &m, extents->clip, &img); + if (unlikely (status)) + return status; + + status = _cairo_quartz_setup_state (&state, extents); + if (unlikely (status)) + goto BAIL; + + rect = CGRectMake (0.0, 0.0, CGImageGetWidth (img), CGImageGetHeight (img)); + _cairo_quartz_cairo_matrix_to_quartz (&m, &mask_matrix); + + /* ClipToMask is essentially drawing an image, so we need to flip the CTM + * to get the image to appear oriented the right way */ + CGContextConcatCTM (state.cgMaskContext, CGAffineTransformInvert (mask_matrix)); + CGContextTranslateCTM (state.cgMaskContext, 0.0, rect.size.height); + CGContextScaleCTM (state.cgMaskContext, 1.0, -1.0); + + state.filter = filter; + + CGContextSetInterpolationQuality (state.cgMaskContext, filter); + CGContextSetShouldAntialias (state.cgMaskContext, filter != kCGInterpolationNone); + + CGContextClipToMask (state.cgMaskContext, rect, img); + + CGContextScaleCTM (state.cgMaskContext, 1.0, -1.0); + CGContextTranslateCTM (state.cgMaskContext, 0.0, -rect.size.height); + CGContextConcatCTM (state.cgMaskContext, mask_matrix); + + _cairo_quartz_draw_source (&state, extents->op); + +BAIL: + _cairo_quartz_teardown_state (&state, extents); + + CGImageRelease (img); + + return status; +} + +static cairo_int_status_t +_cairo_quartz_cg_mask_with_solid (cairo_quartz_surface_t *surface, + cairo_composite_rectangles_t *extents) +{ + cairo_quartz_drawing_state_t state; + double alpha = extents->mask_pattern.solid.color.alpha; + cairo_status_t status; + + status = _cairo_quartz_setup_state (&state, extents); + if (unlikely (status)) + return status; + + CGContextSetAlpha (surface->cgContext, alpha); + _cairo_quartz_draw_source (&state, extents->op); + + _cairo_quartz_teardown_state (&state, extents); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_quartz_cg_mask (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents) +{ + cairo_quartz_surface_t *surface = (cairo_quartz_surface_t *)extents->surface; + const cairo_pattern_t *source = &extents->source_pattern.base; + const cairo_pattern_t *mask = &extents->mask_pattern.base; + cairo_surface_t *mask_surf; + cairo_matrix_t matrix; + cairo_status_t status; + cairo_bool_t need_temp; + CGInterpolationQuality filter; + + ND ((stderr, "%p _cairo_quartz_surface_mask op %d source->type %d mask->type %d\n", + extents->surface, extents->op, extents->source_pattern.base.type, + extents->mask_pattern.base.type)); + + if (mask->type == CAIRO_PATTERN_TYPE_SOLID) + return _cairo_quartz_cg_mask_with_solid (surface, extents); + + need_temp = (mask->type != CAIRO_PATTERN_TYPE_SURFACE || + mask->extend != CAIRO_EXTEND_NONE); + + filter = _cairo_quartz_filter_to_quartz (source->filter); + + if (! need_temp) { + mask_surf = extents->mask_pattern.surface.surface; + + /* When an opaque surface used as a mask in Quartz, its + * luminosity is used as the alpha value, so we can only use + * surfaces with alpha without creating a temporary mask. */ + need_temp = ! (mask_surf->content & CAIRO_CONTENT_ALPHA); + } + + if (! need_temp) { + CGInterpolationQuality mask_filter; + cairo_bool_t simple_transform; + + matrix = mask->matrix; + + mask_filter = _cairo_quartz_filter_to_quartz (mask->filter); + if (mask_filter == kCGInterpolationNone) { + simple_transform = _cairo_matrix_is_translation (&matrix); + if (simple_transform) { + matrix.x0 = ceil (matrix.x0 - 0.5); + matrix.y0 = ceil (matrix.y0 - 0.5); + } + } else { + simple_transform = _cairo_matrix_is_integer_translation (&matrix, + NULL, + NULL); + } + + /* Quartz only allows one interpolation to be set for mask and + * source, so we can skip the temp surface only if the source + * filtering makes the mask look correct. */ + if (source->type == CAIRO_PATTERN_TYPE_SURFACE) + need_temp = ! (simple_transform || filter == mask_filter); + else + filter = mask_filter; + } + + if (need_temp) { + /* Render the mask to a surface */ + mask_surf = _cairo_quartz_surface_create_similar (surface, + CAIRO_CONTENT_ALPHA, + surface->extents.width, + surface->extents.height); + status = mask_surf->status; + if (unlikely (status)) + goto BAIL; + + /* mask_surf is clear, so use OVER instead of SOURCE to avoid a + * temporary layer or fallback to cairo-image. */ + status = _cairo_surface_paint (mask_surf, CAIRO_OPERATOR_OVER, mask, NULL); + if (unlikely (status)) + goto BAIL; + + cairo_matrix_init_identity (&matrix); + } + + status = _cairo_quartz_cg_mask_with_surface (extents, + mask_surf, &matrix, filter); + +BAIL: + + if (need_temp) + cairo_surface_destroy (mask_surf); + + return status; +} + +static cairo_int_status_t +_cairo_quartz_cg_fill (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_quartz_drawing_state_t state; + cairo_int_status_t rv = CAIRO_STATUS_SUCCESS; + + ND ((stderr, "%p _cairo_quartz_surface_fill op %d source->type %d\n", + extents->surface, extents->op, extents->source_pattern.base.type)); + + rv = _cairo_quartz_setup_state (&state, extents); + if (unlikely (rv)) + goto BAIL; + + CGContextSetShouldAntialias (state.cgMaskContext, (antialias != CAIRO_ANTIALIAS_NONE)); + + _cairo_quartz_cairo_path_to_quartz_context (path, state.cgMaskContext); + + if (state.action == DO_DIRECT) { + assert (state.cgDrawContext == state.cgMaskContext); + if (fill_rule == CAIRO_FILL_RULE_WINDING) + CGContextFillPath (state.cgMaskContext); + else + CGContextEOFillPath (state.cgMaskContext); + } else { + if (fill_rule == CAIRO_FILL_RULE_WINDING) + CGContextClip (state.cgMaskContext); + else + CGContextEOClip (state.cgMaskContext); + + _cairo_quartz_draw_source (&state, extents->op); + } + +BAIL: + _cairo_quartz_teardown_state (&state, extents); + + ND ((stderr, "-- fill\n")); + return rv; +} + +static cairo_int_status_t +_cairo_quartz_cg_stroke (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_quartz_drawing_state_t state; + cairo_int_status_t rv = CAIRO_STATUS_SUCCESS; + CGAffineTransform strokeTransform, invStrokeTransform; + + ND ((stderr, "%p _cairo_quartz_surface_stroke op %d source->type %d\n", + extents->surface, extents->op, extents->source_pattern.base.type)); + + rv = _cairo_quartz_setup_state (&state, extents); + if (unlikely (rv)) + goto BAIL; + + // Turning antialiasing off used to cause misrendering with + // single-pixel lines (e.g. 20,10.5 -> 21,10.5 end up being rendered as 2 pixels). + // That's been since fixed in at least 10.5, and in the latest 10.4 dot releases. + CGContextSetShouldAntialias (state.cgMaskContext, (antialias != CAIRO_ANTIALIAS_NONE)); + CGContextSetLineWidth (state.cgMaskContext, style->line_width); + CGContextSetLineCap (state.cgMaskContext, _cairo_quartz_cairo_line_cap_to_quartz (style->line_cap)); + CGContextSetLineJoin (state.cgMaskContext, _cairo_quartz_cairo_line_join_to_quartz (style->line_join)); + CGContextSetMiterLimit (state.cgMaskContext, style->miter_limit); + + if (style->dash && style->num_dashes) { + cairo_quartz_float_t sdash[CAIRO_STACK_ARRAY_LENGTH (cairo_quartz_float_t)]; + cairo_quartz_float_t *fdash = sdash; + unsigned int max_dashes = style->num_dashes; + unsigned int k; + + if (style->num_dashes%2) + max_dashes *= 2; + if (max_dashes > ARRAY_LENGTH (sdash)) + fdash = _cairo_malloc_ab (max_dashes, sizeof (cairo_quartz_float_t)); + if (unlikely (fdash == NULL)) { + rv = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL; + } + + for (k = 0; k < max_dashes; k++) + fdash[k] = (cairo_quartz_float_t) style->dash[k % style->num_dashes]; + + CGContextSetLineDash (state.cgMaskContext, style->dash_offset, fdash, max_dashes); + if (fdash != sdash) + free (fdash); + } else + CGContextSetLineDash (state.cgMaskContext, 0, NULL, 0); + + _cairo_quartz_cairo_path_to_quartz_context (path, state.cgMaskContext); + + _cairo_quartz_cairo_matrix_to_quartz (ctm, &strokeTransform); + CGContextConcatCTM (state.cgMaskContext, strokeTransform); + + if (state.action == DO_DIRECT) { + assert (state.cgDrawContext == state.cgMaskContext); + CGContextStrokePath (state.cgMaskContext); + } else { + CGContextReplacePathWithStrokedPath (state.cgMaskContext); + CGContextClip (state.cgMaskContext); + + _cairo_quartz_cairo_matrix_to_quartz (ctm_inverse, &invStrokeTransform); + CGContextConcatCTM (state.cgMaskContext, invStrokeTransform); + + _cairo_quartz_draw_source (&state, extents->op); + } + +BAIL: + _cairo_quartz_teardown_state (&state, extents); + + ND ((stderr, "-- stroke\n")); + return rv; +} + +#if CAIRO_HAS_QUARTZ_FONT +static cairo_int_status_t +_cairo_quartz_cg_glyphs (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_bool_t overlap) +{ + CGAffineTransform textTransform, invTextTransform; + CGGlyph glyphs_static[CAIRO_STACK_ARRAY_LENGTH (CGPoint)]; + CGPoint cg_positions_static[CAIRO_STACK_ARRAY_LENGTH (CGPoint)]; + CGGlyph *cg_glyphs = &glyphs_static[0]; + CGPoint *cg_positions = &cg_positions_static[0]; + + cairo_quartz_drawing_state_t state; + cairo_int_status_t rv = CAIRO_INT_STATUS_UNSUPPORTED; + CGPoint origin; + CTFontRef ctFont = NULL; + + cairo_bool_t didForceFontSmoothing = FALSE; + + if (cairo_scaled_font_get_type (scaled_font) != CAIRO_FONT_TYPE_QUARTZ) + return CAIRO_INT_STATUS_UNSUPPORTED; + + rv = _cairo_quartz_setup_state (&state, extents); + if (unlikely (rv)) + goto BAIL; + + if (state.action == DO_DIRECT) { + assert (state.cgDrawContext == state.cgMaskContext); + CGContextSetTextDrawingMode (state.cgMaskContext, kCGTextFill); + } else { + CGContextSetTextDrawingMode (state.cgMaskContext, kCGTextClip); + } + + /* this doesn't addref */ + ctFont = _cairo_quartz_scaled_font_get_ct_font (scaled_font); + _cairo_quartz_set_antialiasing (state.cgMaskContext, scaled_font->options.antialias); + + if (num_glyphs > ARRAY_LENGTH (glyphs_static)) { + cg_glyphs = (CGGlyph*) _cairo_malloc_ab (num_glyphs, sizeof (CGGlyph) + sizeof (CGPoint)); + if (unlikely (cg_glyphs == NULL)) { + rv = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL; + } + + cg_positions = (CGPoint*) (cg_glyphs + num_glyphs); + } + + /* scale(1,-1) * scaled_font->scale */ + textTransform = CGAffineTransformMake (scaled_font->scale.xx, + scaled_font->scale.yx, + -scaled_font->scale.xy, + -scaled_font->scale.yy, + 0.0, 0.0); + + /* scaled_font->scale_inverse * scale(1,-1) */ + invTextTransform = CGAffineTransformMake (scaled_font->scale_inverse.xx, + -scaled_font->scale_inverse.yx, + scaled_font->scale_inverse.xy, + -scaled_font->scale_inverse.yy, + 0.0, 0.0); + + + origin = CGPointMake (glyphs[0].x, glyphs[0].y); + for (int i = 0; i < num_glyphs; ++i) + { + cg_glyphs[i] = glyphs[i].index; + cg_positions[i] = CGPointMake (glyphs[i].x - origin.x, glyphs[i].y - origin.y); + cg_positions[i] = CGPointApplyAffineTransform (cg_positions[i], invTextTransform); + } + + /* Translate to the first glyph's position before drawing */ + CGContextTranslateCTM (state.cgMaskContext, origin.x, origin.y); + CGContextConcatCTM (state.cgMaskContext, textTransform); + + CTFontDrawGlyphs (ctFont, cg_glyphs, cg_positions, num_glyphs, state.cgMaskContext); + + CGContextConcatCTM (state.cgMaskContext, invTextTransform); + CGContextTranslateCTM (state.cgMaskContext, -origin.x, -origin.y); + + if (state.action != DO_DIRECT) + _cairo_quartz_draw_source (&state, extents->op); + +BAIL: + if (didForceFontSmoothing) + CGContextSetAllowsFontSmoothing (state.cgMaskContext, FALSE); + + _cairo_quartz_teardown_state (&state, extents); + + if (cg_glyphs != glyphs_static) + free (cg_glyphs); + + return rv; +} +#endif /* CAIRO_HAS_QUARTZ_FONT */ + +static const cairo_compositor_t _cairo_quartz_cg_compositor = { + &_cairo_fallback_compositor, + + _cairo_quartz_cg_paint, + _cairo_quartz_cg_mask, + _cairo_quartz_cg_stroke, + _cairo_quartz_cg_fill, +#if CAIRO_HAS_QUARTZ_FONT + _cairo_quartz_cg_glyphs, +#else + NULL, +#endif +}; + +static cairo_int_status_t +_cairo_quartz_surface_paint (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + return _cairo_compositor_paint (&_cairo_quartz_cg_compositor, + surface, op, source, clip); +} + +static cairo_int_status_t +_cairo_quartz_surface_mask (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + return _cairo_compositor_mask (&_cairo_quartz_cg_compositor, + surface, op, source, mask, + clip); +} + +static cairo_int_status_t +_cairo_quartz_surface_fill (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + return _cairo_compositor_fill (&_cairo_quartz_cg_compositor, + surface, op, source, path, + fill_rule, tolerance, antialias, + clip); +} + +static cairo_int_status_t +_cairo_quartz_surface_stroke (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + return _cairo_compositor_stroke (&_cairo_quartz_cg_compositor, + surface, op, source, path, + style, ctm,ctm_inverse, + tolerance, antialias, clip); +} + +static cairo_int_status_t +_cairo_quartz_surface_glyphs (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + return _cairo_compositor_glyphs (&_cairo_quartz_cg_compositor, + surface, op, source, + glyphs, num_glyphs, scaled_font, + clip); +} + +static cairo_status_t +_cairo_quartz_surface_clipper_intersect_clip_path (cairo_surface_clipper_t *clipper, + cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_quartz_surface_t *surface = + cairo_container_of (clipper, cairo_quartz_surface_t, clipper); + + ND ((stderr, "%p _cairo_quartz_surface_intersect_clip_path path: %p\n", surface, path)); + + if (_cairo_quartz_is_zero_surface (&surface->base)) + return CAIRO_STATUS_SUCCESS; + + if (path == NULL) { + /* If we're being asked to reset the clip, we can only do it + * by restoring the gstate to our previous saved one, and + * saving it again. + * + * Note that this assumes that ALL quartz surface creation + * functions will do a SaveGState first; we do this in create_internal. + */ + CGContextRestoreGState (surface->cgContext); + CGContextSaveGState (surface->cgContext); + } else { + CGContextSetShouldAntialias (surface->cgContext, (antialias != CAIRO_ANTIALIAS_NONE)); + + _cairo_quartz_cairo_path_to_quartz_context (path, surface->cgContext); + + if (fill_rule == CAIRO_FILL_RULE_WINDING) + CGContextClip (surface->cgContext); + else + CGContextEOClip (surface->cgContext); + } + + ND ((stderr, "-- intersect_clip_path\n")); + + return CAIRO_STATUS_SUCCESS; +} + +// XXXtodo implement show_page; need to figure out how to handle begin/end + +static const cairo_surface_backend_t cairo_quartz_surface_backend = { + CAIRO_SURFACE_TYPE_QUARTZ, + _cairo_quartz_surface_finish, + + _cairo_default_context_create, + + _cairo_quartz_surface_create_similar, + NULL, /* similar image */ + _cairo_quartz_surface_map_to_image, + _cairo_quartz_surface_unmap_image, + + _cairo_surface_default_source, + _cairo_quartz_surface_acquire_source_image, + _cairo_quartz_surface_release_source_image, + NULL, /* snapshot */ + + NULL, /* copy_page */ + NULL, /* show_page */ + + _cairo_quartz_surface_get_extents, + NULL, /* get_font_options */ + + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + + _cairo_quartz_surface_paint, + _cairo_quartz_surface_mask, + _cairo_quartz_surface_stroke, + _cairo_quartz_surface_fill, + NULL, /* fill-stroke */ + _cairo_quartz_surface_glyphs, + NULL, /* has_show_text_glyphs */ + NULL, /* show_text_glyphs */ + NULL, /* get_supported_mime_types */ + NULL, /* tag */ +}; + +cairo_quartz_surface_t * +_cairo_quartz_surface_create_internal (CGContextRef cgContext, + cairo_content_t content, + unsigned int width, + unsigned int height) +{ + cairo_quartz_surface_t *surface; + + /* Init the base surface */ + surface = _cairo_calloc (sizeof (cairo_quartz_surface_t)); + if (unlikely (surface == NULL)) + return (cairo_quartz_surface_t*) _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + memset (surface, 0, sizeof (cairo_quartz_surface_t)); + + _cairo_surface_init (&surface->base, + &cairo_quartz_surface_backend, + NULL, /* device */ + content, + FALSE); /* is_vector */ + + _cairo_surface_clipper_init (&surface->clipper, + _cairo_quartz_surface_clipper_intersect_clip_path); + + /* Save our extents */ + surface->extents.x = surface->extents.y = 0; + surface->extents.width = width; + surface->extents.height = height; + surface->virtual_extents = surface->extents; + + if (_cairo_quartz_is_zero_surface (&surface->base)) { + surface->cgContext = NULL; + surface->cgContextBaseCTM = CGAffineTransformIdentity; + surface->base.is_clear = TRUE; + return surface; + } + + /* Save so we can always get back to a known-good CGContext -- this is + * required for proper behaviour of intersect_clip_path(NULL) + */ + CGContextSaveGState (cgContext); + + surface->cgContext = cgContext; + surface->cgContextBaseCTM = CGContextGetCTM (cgContext); + + return surface; +} + +/** + * cairo_quartz_surface_create_for_cg_context: + * @cgContext: the existing CGContext for which to create the surface + * @width: width of the surface, in pixels + * @height: height of the surface, in pixels + * + * Creates a Quartz surface that wraps the given CGContext. The + * CGContext is assumed to be in the standard Cairo coordinate space + * (that is, with the origin at the upper left and the Y axis + * increasing downward). If the CGContext is in the Quartz coordinate + * space (with the origin at the bottom left), then it should be + * flipped before this function is called. The flip can be accomplished + * using a translate and a scale; for example: + * + * + * CGContextTranslateCTM (cgContext, 0.0, height); + * CGContextScaleCTM (cgContext, 1.0, -1.0); + * + * + * All Cairo operations are implemented in terms of Quartz operations, + * as long as Quartz-compatible elements are used (such as Quartz fonts). + * + * Return value: the newly created Cairo surface. + * + * Since: 1.6 + **/ + +cairo_surface_t * +cairo_quartz_surface_create_for_cg_context (CGContextRef cgContext, + unsigned int width, + unsigned int height) +{ + cairo_quartz_surface_t *surf = + _cairo_quartz_surface_create_internal (cgContext, CAIRO_CONTENT_COLOR_ALPHA, + width, height); + if (likely (!surf->base.status)) + CGContextRetain (cgContext); + + return &surf->base; +} + +/** + * cairo_quartz_surface_create: + * @format: format of pixels in the surface to create + * @width: width of the surface, in pixels + * @height: height of the surface, in pixels + * + * Creates a Quartz surface backed by a CGBitmapContext using the main + * display's colorspace to avoid an expensive colorspace transform + * done serially on the CPU. This may produce slightly different + * colors from what's intended. Programs for which color management is + * important should create their own CGBitmapContext with a + * device-independent color space; most will expect Cairo to draw in + * sRGB and would use CGColorSpaceCreateWithName(kCGColorSpaceSRGB). + * + * All Cairo operations, including those that require software + * rendering, will succeed on this surface. + * + * Return value: the newly created surface. + * + * Since: 1.6 + **/ +cairo_surface_t * +cairo_quartz_surface_create (cairo_format_t format, + unsigned int width, + unsigned int height) +{ + cairo_quartz_surface_t *surf; + CGContextRef cgc; + CGColorSpaceRef cgColorspace; + CGBitmapInfo bitinfo; + void *imageData = NULL; + int stride; + int bitsPerComponent; + + if (!_cairo_quartz_verify_surface_size (width, height)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + + if (width == 0 || height == 0) { + return &_cairo_quartz_surface_create_internal (NULL, _cairo_content_from_format (format), + width, height)->base; + } + + if (format == CAIRO_FORMAT_ARGB32 || + format == CAIRO_FORMAT_RGB24) + { + cgColorspace = _cairo_quartz_create_color_space (NULL); + bitinfo = kCGBitmapByteOrder32Host; + if (format == CAIRO_FORMAT_ARGB32) + bitinfo |= kCGImageAlphaPremultipliedFirst; + else + bitinfo |= kCGImageAlphaNoneSkipFirst; + bitsPerComponent = 8; + stride = width * 4; + } else if (format == CAIRO_FORMAT_A8) { + cgColorspace = NULL; + stride = width; + bitinfo = kCGImageAlphaOnly; + bitsPerComponent = 8; + } else if (format == CAIRO_FORMAT_A1) { + /* I don't think we can usefully support this, as defined by + * cairo_format_t -- these are 1-bit pixels stored in 32-bit + * quantities. + */ + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT)); + } else { + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT)); + } + + /* The Apple docs say that for best performance, the stride and the data + * pointer should be 16-byte aligned. malloc already aligns to 16-bytes, + * so we don't have to anything special on allocation. + */ + stride = (stride + 15) & ~15; + cgc = CGBitmapContextCreate (imageData, + width, + height, + bitsPerComponent, + stride, + cgColorspace, + bitinfo); + CGColorSpaceRelease (cgColorspace); + + if (!cgc) { + if (imageData) + free (imageData); + + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + /* flip the Y axis */ + CGContextTranslateCTM (cgc, 0.0, height); + CGContextScaleCTM (cgc, 1.0, -1.0); + + surf = _cairo_quartz_surface_create_internal (cgc, _cairo_content_from_format (format), + width, height); + if (surf->base.status) { + CGContextRelease (cgc); + + if (imageData) + free (imageData); + + // create_internal will have set an error + return &surf->base; + } + + surf->base.is_clear = TRUE; + + return &surf->base; +} + +/** + * cairo_quartz_surface_get_cg_context: + * @surface: the Cairo Quartz surface + * + * Returns the CGContextRef that the given Quartz surface is backed + * by. + * + * A call to cairo_surface_flush() is required before using the + * CGContextRef to ensure that all pending drawing operations are + * finished and to restore any temporary modification cairo has made + * to its state. A call to cairo_surface_mark_dirty() is required + * after the state or the content of the CGContextRef has been + * modified. + * + * Return value: the CGContextRef for the given surface. + * + * Since: 1.6 + **/ +CGContextRef +cairo_quartz_surface_get_cg_context (cairo_surface_t *surface) +{ + if (surface && _cairo_surface_is_quartz (surface)) { + cairo_quartz_surface_t *quartz = (cairo_quartz_surface_t *) surface; + return quartz->cgContext; + } + + if (surface && _cairo_surface_is_quartz_image (surface)) { + cairo_quartz_image_surface_t *quartz = (cairo_quartz_image_surface_t *) surface; + return quartz->cgContext; + } + + return NULL; +} + +/** + * _cairo_surface_is_quartz: + * @surface: a #cairo_surface_t + * + * Checks if a surface is a #cairo_quartz_surface_t + * + * Return value: True if the surface is an quartz surface + **/ +cairo_bool_t +_cairo_surface_is_quartz (const cairo_surface_t *surface) +{ + return surface->backend == &cairo_quartz_surface_backend; +} + +cairo_surface_t* +_cairo_quartz_snapshot_create (cairo_surface_t *surface) +{ + cairo_quartz_snapshot_t *snapshot = NULL; + CGContextRef cgContext; + if (!surface || ! _is_quartz_surface (surface) || _cairo_quartz_is_zero_surface (surface)) + return NULL; + + if (_cairo_surface_is_quartz (surface) && + ! _cairo_quartz_is_cgcontext_bitmap_context (((cairo_quartz_surface_t*)surface)->cgContext)) + return NULL; + + snapshot = _cairo_calloc (sizeof (cairo_quartz_snapshot_t)); + + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + memset (snapshot, 0, sizeof (cairo_quartz_snapshot_t)); + cgContext = cairo_quartz_surface_get_cg_context (surface); + _cairo_surface_init (&snapshot->base, + &cairo_quartz_snapshot_backend, + NULL, CAIRO_CONTENT_COLOR_ALPHA, FALSE); + snapshot->image = CGBitmapContextCreateImage (cgContext); + _cairo_surface_attach_snapshot (surface, &snapshot->base, NULL); + cairo_surface_destroy (&snapshot->base); // The surface has reffed the snapshot so we must unref it here. + + return &snapshot->base; +} + +cairo_status_t +_cairo_quartz_snapshot_finish (void *surface) +{ + cairo_quartz_snapshot_t *snapshot = (cairo_quartz_snapshot_t *)surface; + if (snapshot->image) + CGImageRelease (snapshot->image); + return CAIRO_STATUS_SUCCESS; +} + +CGImageRef +_cairo_quartz_surface_snapshot_get_image (cairo_surface_t *surface) +{ + cairo_surface_t *snapshot; + assert (_is_quartz_surface (surface)); + snapshot = + _cairo_surface_has_snapshot (surface, &cairo_quartz_snapshot_backend); + + if (unlikely (!snapshot)) + { + snapshot = _cairo_quartz_snapshot_create (surface); + if (unlikely (!snapshot || cairo_surface_status (snapshot))) + return NULL; + } + + return CGImageRetain (((cairo_quartz_snapshot_t*)snapshot)->image); +} + +void +_cairo_quartz_image_to_png (CGImageRef image, const char *dest) +{ + CFStringRef png_utti = CFSTR("public.png"); + CFStringRef path; + CFURLRef url; + CGImageDestinationRef image_dest; + + if (!dest) + return; + path = CFStringCreateWithCString (NULL, dest, kCFStringEncodingUTF8); + url = CFURLCreateWithFileSystemPath (NULL, path, kCFURLPOSIXPathStyle, FALSE); + image_dest = CGImageDestinationCreateWithURL (url, png_utti, 1, NULL); + + CGImageDestinationAddImage (image_dest, image, NULL); + CGImageDestinationFinalize (image_dest); + + CFRelease (url); + CFRelease (path); + } + +cairo_status_t +_cairo_quartz_surface_to_png (cairo_surface_t *abstract_surface, const char *dest) +{ + CGImageRef image; + cairo_quartz_surface_t *surface; + if (!(_cairo_surface_is_quartz (abstract_surface) && + _cairo_quartz_is_cgcontext_bitmap_context (((cairo_quartz_surface_t*)abstract_surface)->cgContext))) { + return CAIRO_STATUS_SURFACE_TYPE_MISMATCH; + } + + surface = (cairo_quartz_surface_t*)abstract_surface; + image = CGBitmapContextCreateImage (surface->cgContext); + _cairo_quartz_image_to_png (image, dest); + + CGImageRelease (image); + return CAIRO_STATUS_SUCCESS; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-quartz.h b/local/recipes/libs/cairo/source/src/cairo-quartz.h new file mode 100644 index 0000000000..9e11e876fe --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-quartz.h @@ -0,0 +1,82 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006, 2007 Mozilla Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Mozilla Foundation. + * + * Contributor(s): + * Vladimir Vukicevic + */ + +#ifndef CAIRO_QUARTZ_H +#define CAIRO_QUARTZ_H + +#include "cairo.h" + +#if CAIRO_HAS_QUARTZ_SURFACE + +#include + +CAIRO_BEGIN_DECLS + +cairo_public cairo_surface_t * +cairo_quartz_surface_create (cairo_format_t format, + unsigned int width, + unsigned int height); + +cairo_public cairo_surface_t * +cairo_quartz_surface_create_for_cg_context (CGContextRef cgContext, + unsigned int width, + unsigned int height); + +cairo_public CGContextRef +cairo_quartz_surface_get_cg_context (cairo_surface_t *surface); + +#if CAIRO_HAS_QUARTZ_FONT + +/* + * Quartz font support + */ + +cairo_public cairo_font_face_t * +cairo_quartz_font_face_create_for_cgfont (CGFontRef font); + +cairo_public cairo_font_face_t * +cairo_quartz_font_face_create_for_atsu_font_id (ATSUFontID font_id); + +#endif /* CAIRO_HAS_QUARTZ_FONT */ + +CAIRO_END_DECLS + +#else + +# error Cairo was not compiled with support for the quartz backend + +#endif /* CAIRO_HAS_QUARTZ_SURFACE */ + +#endif /* CAIRO_QUARTZ_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-raster-source-pattern.c b/local/recipes/libs/cairo/source/src/cairo-raster-source-pattern.c new file mode 100644 index 0000000000..0ae3b946a0 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-raster-source-pattern.c @@ -0,0 +1,430 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" +#include "cairo-error-private.h" +#include "cairo-pattern-private.h" + +/** + * SECTION:cairo-raster-source + * @Title: Raster Sources + * @Short_Description: Supplying arbitrary image data + * @See_Also: #cairo_pattern_t + * + * The raster source provides the ability to supply arbitrary pixel data + * whilst rendering. The pixels are queried at the time of rasterisation + * by means of user callback functions, allowing for the ultimate + * flexibility. For example, in handling compressed image sources, you + * may keep a MRU cache of decompressed images and decompress sources on the + * fly and discard old ones to conserve memory. + * + * For the raster source to be effective, you must at least specify + * the acquire and release callbacks which are used to retrieve the pixel + * data for the region of interest and demark when it can be freed afterwards. + * Other callbacks are provided for when the pattern is copied temporarily + * during rasterisation, or more permanently as a snapshot in order to keep + * the pixel data available for printing. + **/ + +cairo_surface_t * +_cairo_raster_source_pattern_acquire (const cairo_pattern_t *abstract_pattern, + cairo_surface_t *target, + const cairo_rectangle_int_t *extents) +{ + cairo_raster_source_pattern_t *pattern = + (cairo_raster_source_pattern_t *) abstract_pattern; + + if (pattern->acquire == NULL) + return NULL; + + if (extents == NULL) + extents = &pattern->extents; + + return pattern->acquire (&pattern->base, pattern->user_data, + target, extents); +} + +void +_cairo_raster_source_pattern_release (const cairo_pattern_t *abstract_pattern, + cairo_surface_t *surface) +{ + cairo_raster_source_pattern_t *pattern = + (cairo_raster_source_pattern_t *) abstract_pattern; + + if (pattern->release == NULL) + return; + + pattern->release (&pattern->base, pattern->user_data, surface); +} + +cairo_status_t +_cairo_raster_source_pattern_init_copy (cairo_pattern_t *abstract_pattern, + const cairo_pattern_t *other) +{ + cairo_raster_source_pattern_t *pattern = + (cairo_raster_source_pattern_t *) abstract_pattern; + cairo_status_t status; + + VG (VALGRIND_MAKE_MEM_UNDEFINED (pattern, sizeof (cairo_raster_source_pattern_t))); + memcpy(pattern, other, sizeof (cairo_raster_source_pattern_t)); + + status = CAIRO_STATUS_SUCCESS; + if (pattern->copy) + status = pattern->copy (&pattern->base, pattern->user_data, other); + + return status; +} + +cairo_status_t +_cairo_raster_source_pattern_snapshot (cairo_pattern_t *abstract_pattern) +{ + cairo_raster_source_pattern_t *pattern = + (cairo_raster_source_pattern_t *) abstract_pattern; + + if (pattern->snapshot == NULL) + return CAIRO_STATUS_SUCCESS; + + return pattern->snapshot (&pattern->base, pattern->user_data); +} + +void +_cairo_raster_source_pattern_finish (cairo_pattern_t *abstract_pattern) +{ + cairo_raster_source_pattern_t *pattern = + (cairo_raster_source_pattern_t *) abstract_pattern; + + if (pattern->finish == NULL) + return; + + pattern->finish (&pattern->base, pattern->user_data); +} + +/* Public interface */ + +/** + * cairo_pattern_create_raster_source: + * @user_data: the user data to be passed to all callbacks + * @content: content type for the pixel data that will be returned. Knowing + * the content type ahead of time is used for analysing the operation and + * picking the appropriate rendering path. + * @width: maximum size of the sample area + * @height: maximum size of the sample area + * + * Creates a new user pattern for providing pixel data. + * + * Use the setter functions to associate callbacks with the returned + * pattern. The only mandatory callback is acquire. + * + * Return value: a newly created #cairo_pattern_t. Free with + * cairo_pattern_destroy() when you are done using it. + * + * Since: 1.12 + **/ +cairo_pattern_t * +cairo_pattern_create_raster_source (void *user_data, + cairo_content_t content, + int width, int height) +{ + cairo_raster_source_pattern_t *pattern; + + CAIRO_MUTEX_INITIALIZE (); + + if (width < 0 || height < 0) + return _cairo_pattern_create_in_error (CAIRO_STATUS_INVALID_SIZE); + + if (! CAIRO_CONTENT_VALID (content)) + return _cairo_pattern_create_in_error (CAIRO_STATUS_INVALID_CONTENT); + + pattern = _cairo_calloc (sizeof (*pattern)); + if (unlikely (pattern == NULL)) + return _cairo_pattern_create_in_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_pattern_init (&pattern->base, + CAIRO_PATTERN_TYPE_RASTER_SOURCE); + CAIRO_REFERENCE_COUNT_INIT (&pattern->base.ref_count, 1); + + pattern->content = content; + + pattern->extents.x = 0; + pattern->extents.y = 0; + pattern->extents.width = width; + pattern->extents.height = height; + + pattern->user_data = user_data; + + return &pattern->base; +} + +/** + * cairo_raster_source_pattern_set_callback_data: + * @pattern: the pattern to update + * @data: the user data to be passed to all callbacks + * + * Updates the user data that is provided to all callbacks. + * + * Since: 1.12 + **/ +void +cairo_raster_source_pattern_set_callback_data (cairo_pattern_t *abstract_pattern, + void *data) +{ + cairo_raster_source_pattern_t *pattern; + + if (abstract_pattern->type != CAIRO_PATTERN_TYPE_RASTER_SOURCE) + return; + + pattern = (cairo_raster_source_pattern_t *) abstract_pattern; + pattern->user_data = data; +} + +/** + * cairo_raster_source_pattern_get_callback_data: + * @pattern: the pattern to update + * + * Queries the current user data. + * + * Return value: the current user-data passed to each callback + * + * Since: 1.12 + **/ +void * +cairo_raster_source_pattern_get_callback_data (cairo_pattern_t *abstract_pattern) +{ + cairo_raster_source_pattern_t *pattern; + + if (abstract_pattern->type != CAIRO_PATTERN_TYPE_RASTER_SOURCE) + return NULL; + + pattern = (cairo_raster_source_pattern_t *) abstract_pattern; + return pattern->user_data; +} + +/** + * cairo_raster_source_pattern_set_acquire: + * @pattern: the pattern to update + * @acquire: acquire callback + * @release: release callback + * + * Specifies the callbacks used to generate the image surface for a rendering + * operation (acquire) and the function used to cleanup that surface afterwards. + * + * The @acquire callback should create a surface (preferably an image + * surface created to match the target using + * cairo_surface_create_similar_image()) that defines at least the region + * of interest specified by extents. The surface is allowed to be the entire + * sample area, but if it does contain a subsection of the sample area, + * the surface extents should be provided by setting the device offset (along + * with its width and height) using cairo_surface_set_device_offset(). + * + * Since: 1.12 + **/ +void +cairo_raster_source_pattern_set_acquire (cairo_pattern_t *abstract_pattern, + cairo_raster_source_acquire_func_t acquire, + cairo_raster_source_release_func_t release) +{ + cairo_raster_source_pattern_t *pattern; + + if (abstract_pattern->type != CAIRO_PATTERN_TYPE_RASTER_SOURCE) + return; + + pattern = (cairo_raster_source_pattern_t *) abstract_pattern; + pattern->acquire = acquire; + pattern->release = release; +} + +/** + * cairo_raster_source_pattern_get_acquire: + * @pattern: the pattern to query + * @acquire: return value for the current acquire callback + * @release: return value for the current release callback + * + * Queries the current acquire and release callbacks. + * + * Since: 1.12 + **/ +void +cairo_raster_source_pattern_get_acquire (cairo_pattern_t *abstract_pattern, + cairo_raster_source_acquire_func_t *acquire, + cairo_raster_source_release_func_t *release) +{ + cairo_raster_source_pattern_t *pattern; + + if (abstract_pattern->type != CAIRO_PATTERN_TYPE_RASTER_SOURCE) + return; + + pattern = (cairo_raster_source_pattern_t *) abstract_pattern; + if (acquire) + *acquire = pattern->acquire; + if (release) + *release = pattern->release; +} + +/** + * cairo_raster_source_pattern_set_snapshot: + * @pattern: the pattern to update + * @snapshot: snapshot callback + * + * Sets the callback that will be used whenever a snapshot is taken of the + * pattern, that is whenever the current contents of the pattern should be + * preserved for later use. This is typically invoked whilst printing. + * + * Since: 1.12 + **/ +void +cairo_raster_source_pattern_set_snapshot (cairo_pattern_t *abstract_pattern, + cairo_raster_source_snapshot_func_t snapshot) +{ + cairo_raster_source_pattern_t *pattern; + + if (abstract_pattern->type != CAIRO_PATTERN_TYPE_RASTER_SOURCE) + return; + + pattern = (cairo_raster_source_pattern_t *) abstract_pattern; + pattern->snapshot = snapshot; +} + +/** + * cairo_raster_source_pattern_get_snapshot: + * @pattern: the pattern to query + * + * Queries the current snapshot callback. + * + * Return value: the current snapshot callback + * + * Since: 1.12 + **/ +cairo_raster_source_snapshot_func_t +cairo_raster_source_pattern_get_snapshot (cairo_pattern_t *abstract_pattern) +{ + cairo_raster_source_pattern_t *pattern; + + if (abstract_pattern->type != CAIRO_PATTERN_TYPE_RASTER_SOURCE) + return NULL; + + pattern = (cairo_raster_source_pattern_t *) abstract_pattern; + return pattern->snapshot; +} + +/** + * cairo_raster_source_pattern_set_copy: + * @pattern: the pattern to update + * @copy: the copy callback + * + * Updates the copy callback which is used whenever a temporary copy of the + * pattern is taken. + * + * Since: 1.12 + **/ +void +cairo_raster_source_pattern_set_copy (cairo_pattern_t *abstract_pattern, + cairo_raster_source_copy_func_t copy) +{ + cairo_raster_source_pattern_t *pattern; + + if (abstract_pattern->type != CAIRO_PATTERN_TYPE_RASTER_SOURCE) + return; + + pattern = (cairo_raster_source_pattern_t *) abstract_pattern; + pattern->copy = copy; +} + +/** + * cairo_raster_source_pattern_get_copy: + * @pattern: the pattern to query + * + * Queries the current copy callback. + * + * Return value: the current copy callback + * + * Since: 1.12 + **/ +cairo_raster_source_copy_func_t +cairo_raster_source_pattern_get_copy (cairo_pattern_t *abstract_pattern) +{ + cairo_raster_source_pattern_t *pattern; + + if (abstract_pattern->type != CAIRO_PATTERN_TYPE_RASTER_SOURCE) + return NULL; + + pattern = (cairo_raster_source_pattern_t *) abstract_pattern; + return pattern->copy; +} + +/** + * cairo_raster_source_pattern_set_finish: + * @pattern: the pattern to update + * @finish: the finish callback + * + * Updates the finish callback which is used whenever a pattern (or a copy + * thereof) will no longer be used. + * + * Since: 1.12 + **/ +void +cairo_raster_source_pattern_set_finish (cairo_pattern_t *abstract_pattern, + cairo_raster_source_finish_func_t finish) +{ + cairo_raster_source_pattern_t *pattern; + + if (abstract_pattern->type != CAIRO_PATTERN_TYPE_RASTER_SOURCE) + return; + + pattern = (cairo_raster_source_pattern_t *) abstract_pattern; + pattern->finish = finish; +} + +/** + * cairo_raster_source_pattern_get_finish: + * @pattern: the pattern to query + * + * Queries the current finish callback. + * + * Return value: the current finish callback + * + * Since: 1.12 + **/ +cairo_raster_source_finish_func_t +cairo_raster_source_pattern_get_finish (cairo_pattern_t *abstract_pattern) +{ + cairo_raster_source_pattern_t *pattern; + + if (abstract_pattern->type != CAIRO_PATTERN_TYPE_RASTER_SOURCE) + return NULL; + + pattern = (cairo_raster_source_pattern_t *) abstract_pattern; + return pattern->finish; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-recording-surface-inline.h b/local/recipes/libs/cairo/source/src/cairo-recording-surface-inline.h new file mode 100644 index 0000000000..9002ccd693 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-recording-surface-inline.h @@ -0,0 +1,68 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Kristian Høgsberg + * Adrian Johnson + */ + +#ifndef CAIRO_RECORDING_SURFACE_INLINE_H +#define CAIRO_RECORDING_SURFACE_INLINE_H + +#include "cairo-recording-surface-private.h" + +static inline cairo_bool_t +_cairo_recording_surface_get_bounds (cairo_surface_t *surface, + cairo_rectangle_t *extents) +{ + cairo_recording_surface_t *recording = (cairo_recording_surface_t *)surface; + if (recording->unbounded) + return FALSE; + + *extents = recording->extents_pixels; + return TRUE; +} + +/** + * _cairo_surface_is_recording: + * @surface: a #cairo_surface_t + * + * Checks if a surface is a #cairo_recording_surface_t + * + * Return value: %TRUE if the surface is a recording surface + **/ +static inline cairo_bool_t +_cairo_surface_is_recording (const cairo_surface_t *surface) +{ + return surface->backend->type == CAIRO_SURFACE_TYPE_RECORDING; +} + +#endif /* CAIRO_RECORDING_SURFACE_INLINE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-recording-surface-private.h b/local/recipes/libs/cairo/source/src/cairo-recording-surface-private.h new file mode 100644 index 0000000000..2ee414e7d1 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-recording-surface-private.h @@ -0,0 +1,271 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Kristian Høgsberg + * Adrian Johnson + */ + +#ifndef CAIRO_RECORDING_SURFACE_H +#define CAIRO_RECORDING_SURFACE_H + +#include "cairoint.h" +#include "cairo-path-fixed-private.h" +#include "cairo-pattern-private.h" +#include "cairo-surface-backend-private.h" + +typedef enum { + /* The 5 basic drawing operations. */ + CAIRO_COMMAND_PAINT, + CAIRO_COMMAND_MASK, + CAIRO_COMMAND_STROKE, + CAIRO_COMMAND_FILL, + CAIRO_COMMAND_SHOW_TEXT_GLYPHS, + + /* cairo_tag_begin()/cairo_tag_end() */ + CAIRO_COMMAND_TAG, +} cairo_command_type_t; + +typedef enum { + CAIRO_RECORDING_REGION_ALL = 0, + CAIRO_RECORDING_REGION_NATIVE, + CAIRO_RECORDING_REGION_IMAGE_FALLBACK +} cairo_recording_region_type_t; + +typedef enum { + CAIRO_RECORDING_REPLAY, + CAIRO_RECORDING_CREATE_REGIONS, + CAIRO_RECORDING_REPLAY_REGION +} cairo_recording_replay_type_t; + +typedef struct _cairo_command_header { + cairo_command_type_t type; + cairo_operator_t op; + cairo_rectangle_int_t extents; + cairo_clip_t *clip; + + int index; + struct _cairo_command_header *chain; +} cairo_command_header_t; + +typedef struct _cairo_command_paint { + cairo_command_header_t header; + cairo_pattern_union_t source; +} cairo_command_paint_t; + +typedef struct _cairo_command_mask { + cairo_command_header_t header; + cairo_pattern_union_t source; + cairo_pattern_union_t mask; +} cairo_command_mask_t; + +typedef struct _cairo_command_stroke { + cairo_command_header_t header; + cairo_pattern_union_t source; + cairo_path_fixed_t path; + cairo_stroke_style_t style; + cairo_matrix_t ctm; + cairo_matrix_t ctm_inverse; + double tolerance; + cairo_antialias_t antialias; +} cairo_command_stroke_t; + +typedef struct _cairo_command_fill { + cairo_command_header_t header; + cairo_pattern_union_t source; + cairo_path_fixed_t path; + cairo_fill_rule_t fill_rule; + double tolerance; + cairo_antialias_t antialias; +} cairo_command_fill_t; + +typedef struct _cairo_command_show_text_glyphs { + cairo_command_header_t header; + cairo_pattern_union_t source; + char *utf8; + int utf8_len; + cairo_glyph_t *glyphs; + unsigned int num_glyphs; + cairo_text_cluster_t *clusters; + int num_clusters; + cairo_text_cluster_flags_t cluster_flags; + cairo_scaled_font_t *scaled_font; +} cairo_command_show_text_glyphs_t; + +typedef struct _cairo_command_tag { + cairo_command_header_t header; + cairo_bool_t begin; + char *tag_name; + char *attributes; +} cairo_command_tag_t; + +typedef union _cairo_command { + cairo_command_header_t header; + + cairo_command_paint_t paint; + cairo_command_mask_t mask; + cairo_command_stroke_t stroke; + cairo_command_fill_t fill; + cairo_command_show_text_glyphs_t show_text_glyphs; + cairo_command_tag_t tag; +} cairo_command_t; + +typedef struct _cairo_recording_surface { + cairo_surface_t base; + + /* A recording-surface is logically unbounded, but when used as a + * source we need to render it to an image, so we need a size at + * which to create that image. */ + cairo_rectangle_t extents_pixels; + cairo_rectangle_int_t extents; + cairo_bool_t unbounded; + + cairo_array_t commands; + unsigned int *indices; + unsigned int num_indices; + cairo_bool_t optimize_clears; + cairo_bool_t has_bilevel_alpha; + cairo_bool_t has_only_op_over; + cairo_bool_t has_tags; + + struct bbtree { + cairo_box_t extents; + struct bbtree *left, *right; + cairo_command_header_t *chain; + } bbtree; + + /* The mutex protects modification to all subsequent fields. */ + cairo_mutex_t mutex; + + cairo_list_t region_array_list; + +} cairo_recording_surface_t; + +typedef struct _cairo_recording_region_element { + cairo_recording_region_type_t region; + unsigned int source_id; + unsigned int mask_id; +} cairo_recording_region_element_t; + +typedef struct _cairo_recording_region_array { + unsigned int id; + cairo_reference_count_t ref_count; + cairo_array_t regions; /* cairo_recording_region_element_t */ + cairo_list_t link; +} cairo_recording_regions_array_t; + +cairo_private cairo_int_status_t +_cairo_recording_surface_get_path (cairo_surface_t *surface, + cairo_path_fixed_t *path); + +cairo_private cairo_status_t +_cairo_recording_surface_replay_one (cairo_recording_surface_t *surface, + long unsigned index, + cairo_surface_t *target); + +cairo_private cairo_status_t +_cairo_recording_surface_replay (cairo_surface_t *surface, + cairo_surface_t *target); + +cairo_private cairo_status_t +_cairo_recording_surface_replay_with_foreground_color (cairo_surface_t *surface, + cairo_surface_t *target, + const cairo_color_t *foreground_color, + cairo_bool_t *foreground_used); + +cairo_private cairo_status_t +_cairo_recording_surface_replay_with_transform (cairo_surface_t *surface, + const cairo_matrix_t *surface_transform, + cairo_surface_t *target, + cairo_bool_t surface_is_unbounded, + cairo_bool_t replay_all); + +cairo_private cairo_status_t +_cairo_recording_surface_replay_with_clip (cairo_surface_t *surface, + const cairo_matrix_t *surface_transform, + cairo_surface_t *target, + const cairo_clip_t *target_clip); + +cairo_private cairo_status_t +_cairo_recording_surface_replay_and_create_regions (cairo_surface_t *surface, + unsigned int regions_id, + const cairo_matrix_t *surface_transform, + cairo_surface_t *target, + cairo_bool_t surface_is_unbounded, + cairo_bool_t replay_all); + +cairo_private cairo_status_t +_cairo_recording_surface_replay_region (cairo_surface_t *surface, + unsigned int regions_id, + const cairo_rectangle_int_t *surface_extents, + cairo_surface_t *target, + cairo_recording_region_type_t region); + +cairo_private cairo_status_t +_cairo_recording_surface_get_bbox (cairo_recording_surface_t *recording, + cairo_box_t *bbox, + const cairo_matrix_t *transform); + +cairo_private cairo_status_t +_cairo_recording_surface_get_ink_bbox (cairo_recording_surface_t *surface, + cairo_box_t *bbox, + const cairo_matrix_t *transform); + +cairo_private cairo_bool_t +_cairo_recording_surface_has_only_bilevel_alpha (cairo_recording_surface_t *surface); + +cairo_private cairo_bool_t +_cairo_recording_surface_has_only_op_over (cairo_recording_surface_t *surface); + +cairo_private cairo_bool_t +_cairo_recording_surface_has_tags (cairo_surface_t *surface); + +cairo_private cairo_status_t +_cairo_recording_surface_region_array_attach (cairo_surface_t *surface, + unsigned int *id); + +cairo_private void +_cairo_recording_surface_region_array_reference (cairo_surface_t *surface, + unsigned int id); + +cairo_private void +_cairo_recording_surface_region_array_remove (cairo_surface_t *surface, + unsigned int id); + +cairo_private void +_cairo_debug_print_recording_surface (FILE *file, + cairo_surface_t *surface, + unsigned int regions_id, + int indent, + cairo_bool_t recurse); + +#endif /* CAIRO_RECORDING_SURFACE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-recording-surface.c b/local/recipes/libs/cairo/source/src/cairo-recording-surface.c new file mode 100644 index 0000000000..6add3a218e --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-recording-surface.c @@ -0,0 +1,2946 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * Copyright © 2007 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Kristian Høgsberg + * Carl Worth + * Adrian Johnson + */ + +/** + * SECTION:cairo-recording + * @Title: Recording Surfaces + * @Short_Description: Records all drawing operations + * @See_Also: #cairo_surface_t + * + * A recording surface is a surface that records all drawing operations at + * the highest level of the surface backend interface, (that is, the + * level of paint, mask, stroke, fill, and show_text_glyphs). The recording + * surface can then be "replayed" against any target surface by using it + * as a source surface. + * + * If you want to replay a surface so that the results in target will be + * identical to the results that would have been obtained if the original + * operations applied to the recording surface had instead been applied to the + * target surface, you can use code like this: + * + * cairo_t *cr; + * + * cr = cairo_create (target); + * cairo_set_source_surface (cr, recording_surface, 0.0, 0.0); + * cairo_paint (cr); + * cairo_destroy (cr); + * + * + * A recording surface is logically unbounded, i.e. it has no implicit constraint + * on the size of the drawing surface. However, in practice this is rarely + * useful as you wish to replay against a particular target surface with + * known bounds. For this case, it is more efficient to specify the target + * extents to the recording surface upon creation. + * + * The recording phase of the recording surface is careful to snapshot all + * necessary objects (paths, patterns, etc.), in order to achieve + * accurate replay. The efficiency of the recording surface could be + * improved by improving the implementation of snapshot for the + * various objects. For example, it would be nice to have a + * copy-on-write implementation for _cairo_surface_snapshot. + **/ + +#include "cairoint.h" + +#include "cairo-array-private.h" +#include "cairo-analysis-surface-private.h" +#include "cairo-clip-private.h" +#include "cairo-combsort-inline.h" +#include "cairo-composite-rectangles-private.h" +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-list-inline.h" +#include "cairo-recording-surface-inline.h" +#include "cairo-surface-snapshot-inline.h" +#include "cairo-surface-wrapper-private.h" +#include "cairo-traps-private.h" + +typedef struct _cairo_recording_surface_replay_params { + const cairo_rectangle_int_t *surface_extents; + const cairo_matrix_t *surface_transform; + cairo_surface_t *target; + const cairo_clip_t *target_clip; + cairo_bool_t surface_is_unbounded; + cairo_recording_replay_type_t type; + cairo_recording_region_type_t region; + unsigned int regions_id; + const cairo_color_t *foreground_color; + cairo_bool_t foreground_used; + cairo_bool_t replay_all; +} cairo_recording_surface_replay_params_t; + +static const cairo_surface_backend_t cairo_recording_surface_backend; + +/** + * CAIRO_HAS_RECORDING_SURFACE: + * + * Defined if the recording surface backend is available. + * The recording surface backend is always built in. + * This macro was added for completeness in cairo 1.10. + * + * Since: 1.10 + **/ + +/* Currently all recording surfaces do have a size which should be passed + * in as the maximum size of any target surface against which the + * recording-surface will ever be replayed. + * + * XXX: The naming of "pixels" in the size here is a misnomer. It's + * actually a size in whatever device-space units are desired (again, + * according to the intended replay target). + */ + +static int bbtree_left_or_right (struct bbtree *bbt, + const cairo_box_t *box) +{ + int left, right; + + if (bbt->left) { + cairo_box_t *e = &bbt->left->extents; + cairo_box_t b; + + b.p1.x = MIN (e->p1.x, box->p1.x); + b.p1.y = MIN (e->p1.y, box->p1.y); + b.p2.x = MAX (e->p2.x, box->p2.x); + b.p2.y = MAX (e->p2.y, box->p2.y); + + left = _cairo_fixed_integer_part (b.p2.x - b.p1.x) * _cairo_fixed_integer_part (b.p2.y - b.p1.y); + left -= _cairo_fixed_integer_part (e->p2.x - e->p1.x) * _cairo_fixed_integer_part (e->p2.y - e->p1.y); + } else + left = 0; + + if (bbt->right) { + cairo_box_t *e = &bbt->right->extents; + cairo_box_t b; + + b.p1.x = MIN (e->p1.x, box->p1.x); + b.p1.y = MIN (e->p1.y, box->p1.y); + b.p2.x = MAX (e->p2.x, box->p2.x); + b.p2.y = MAX (e->p2.y, box->p2.y); + + right = _cairo_fixed_integer_part (b.p2.x - b.p1.x) * _cairo_fixed_integer_part (b.p2.y - b.p1.y); + right -= _cairo_fixed_integer_part (e->p2.x - e->p1.x) * _cairo_fixed_integer_part (e->p2.y - e->p1.y); + } else + right = 0; + + return left <= right; +} + +#define INVALID_CHAIN ((cairo_command_header_t *)-1) + +static struct bbtree * +bbtree_new (const cairo_box_t *box, cairo_command_header_t *chain) +{ + struct bbtree *bbt = _cairo_calloc (sizeof (*bbt)); + if (bbt == NULL) + return NULL; + bbt->extents = *box; + bbt->left = bbt->right = NULL; + bbt->chain = chain; + return bbt; +} + +static void +bbtree_init (struct bbtree *bbt, cairo_command_header_t *header) +{ + _cairo_box_from_rectangle (&bbt->extents, &header->extents); + bbt->chain = header; +} + +static cairo_status_t +bbtree_add (struct bbtree *bbt, + cairo_command_header_t *header, + const cairo_box_t *box) +{ + if (box->p1.x < bbt->extents.p1.x || box->p1.y < bbt->extents.p1.y || + box->p2.x > bbt->extents.p2.x || box->p2.y > bbt->extents.p2.y) + { + if (bbt->chain) { + if (bbtree_left_or_right (bbt, &bbt->extents)) { + if (bbt->left == NULL) { + bbt->left = bbtree_new (&bbt->extents, bbt->chain); + if (unlikely (bbt->left == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } else + bbtree_add (bbt->left, bbt->chain, &bbt->extents); + } else { + if (bbt->right == NULL) { + bbt->right = bbtree_new (&bbt->extents, bbt->chain); + if (unlikely (bbt->right == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } else + bbtree_add (bbt->right, bbt->chain, &bbt->extents); + } + + bbt->chain = NULL; + } + + bbt->extents.p1.x = MIN (bbt->extents.p1.x, box->p1.x); + bbt->extents.p1.y = MIN (bbt->extents.p1.y, box->p1.y); + bbt->extents.p2.x = MAX (bbt->extents.p2.x, box->p2.x); + bbt->extents.p2.y = MAX (bbt->extents.p2.y, box->p2.y); + } + + if (box->p1.x == bbt->extents.p1.x && box->p1.y == bbt->extents.p1.y && + box->p2.x == bbt->extents.p2.x && box->p2.y == bbt->extents.p2.y) + { + cairo_command_header_t *last = header; + while (last->chain) /* expected to be infrequent */ + last = last->chain; + last->chain = bbt->chain; + bbt->chain = header; + return CAIRO_STATUS_SUCCESS; + } + + if (bbtree_left_or_right (bbt, box)) { + if (bbt->left == NULL) { + bbt->left = bbtree_new (box, header); + if (unlikely (bbt->left == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } else + return bbtree_add (bbt->left, header, box); + } else { + if (bbt->right == NULL) { + bbt->right = bbtree_new (box, header); + if (unlikely (bbt->right == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } else + return bbtree_add (bbt->right, header, box); + } + + return CAIRO_STATUS_SUCCESS; +} + +static void bbtree_del (struct bbtree *bbt) +{ + if (bbt->left) + bbtree_del (bbt->left); + if (bbt->right) + bbtree_del (bbt->right); + + free (bbt); +} + +static cairo_bool_t box_outside (const cairo_box_t *a, const cairo_box_t *b) +{ + return + a->p1.x >= b->p2.x || a->p1.y >= b->p2.y || + a->p2.x <= b->p1.x || a->p2.y <= b->p1.y; +} + +static void +bbtree_foreach_mark_visible (struct bbtree *bbt, + const cairo_box_t *box, + unsigned int **indices) +{ + cairo_command_header_t *chain; + + for (chain = bbt->chain; chain; chain = chain->chain) + *(*indices)++ = chain->index; + + if (bbt->left && ! box_outside (box, &bbt->left->extents)) + bbtree_foreach_mark_visible (bbt->left, box, indices); + if (bbt->right && ! box_outside (box, &bbt->right->extents)) + bbtree_foreach_mark_visible (bbt->right, box, indices); +} + +static inline int intcmp (const unsigned int a, const unsigned int b) +{ + return a - b; +} +CAIRO_COMBSORT_DECLARE (sort_indices, unsigned int, intcmp) + +static inline int sizecmp (unsigned int a, unsigned int b, cairo_command_header_t **elements) +{ + const cairo_rectangle_int_t *r; + + r = &elements[a]->extents; + a = r->width * r->height; + + r = &elements[b]->extents; + b = r->width * r->height; + + return b - a; +} +CAIRO_COMBSORT_DECLARE_WITH_DATA (sort_commands, unsigned int, sizecmp) + +static void +_cairo_recording_surface_destroy_bbtree (cairo_recording_surface_t *surface) +{ + cairo_command_t **elements; + int i, num_elements; + + if (surface->bbtree.chain == INVALID_CHAIN) + return; + + if (surface->bbtree.left) { + bbtree_del (surface->bbtree.left); + surface->bbtree.left = NULL; + } + if (surface->bbtree.right) { + bbtree_del (surface->bbtree.right); + surface->bbtree.right = NULL; + } + + elements = _cairo_array_index (&surface->commands, 0); + num_elements = surface->commands.num_elements; + for (i = 0; i < num_elements; i++) + elements[i]->header.chain = NULL; + + surface->bbtree.chain = INVALID_CHAIN; +} + +static cairo_status_t +_cairo_recording_surface_create_bbtree (cairo_recording_surface_t *surface) +{ + cairo_command_t **elements = _cairo_array_index (&surface->commands, 0); + unsigned int *indices; + cairo_status_t status; + unsigned int i, count; + + count = surface->commands.num_elements; + if (count > surface->num_indices) { + free (surface->indices); + surface->indices = _cairo_malloc_ab (count, sizeof (int)); + if (unlikely (surface->indices == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + surface->num_indices = count; + } + + indices = surface->indices; + for (i = 0; i < count; i++) + indices[i] = i; + + sort_commands (indices, count, elements); + + bbtree_init (&surface->bbtree, &elements[indices[0]]->header); + for (i = 1; i < count; i++) { + cairo_command_header_t *header = &elements[indices[i]]->header; + cairo_box_t box; + + _cairo_box_from_rectangle (&box, &header->extents); + status = bbtree_add (&surface->bbtree, header, &box); + if (unlikely (status)) + goto cleanup; + } + + return CAIRO_STATUS_SUCCESS; + +cleanup: + if (surface->bbtree.left) + bbtree_del (surface->bbtree.left); + if (surface->bbtree.right) + bbtree_del (surface->bbtree.right); + return status; +} + +/** + * cairo_recording_surface_create: + * @content: the content of the recording surface + * @extents: the extents to record in pixels, can be %NULL to record + * unbounded operations. + * + * Creates a recording-surface which can be used to record all drawing operations + * at the highest level (that is, the level of paint, mask, stroke, fill + * and show_text_glyphs). The recording surface can then be "replayed" against + * any target surface by using it as a source to drawing operations. + * + * The recording phase of the recording surface is careful to snapshot all + * necessary objects (paths, patterns, etc.), in order to achieve + * accurate replay. + * + * Return value: a pointer to the newly created surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * Since: 1.10 + **/ +cairo_surface_t * +cairo_recording_surface_create (cairo_content_t content, + const cairo_rectangle_t *extents) +{ + cairo_recording_surface_t *surface; + + surface = _cairo_calloc (sizeof (cairo_recording_surface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_surface_init (&surface->base, + &cairo_recording_surface_backend, + NULL, /* device */ + content, + TRUE); /* is_vector */ + + + surface->unbounded = TRUE; + + /* unbounded -> 'infinite' extents */ + if (extents != NULL) { + surface->extents_pixels = *extents; + + /* XXX check for overflow */ + surface->extents.x = floor (extents->x); + surface->extents.y = floor (extents->y); + surface->extents.width = ceil (extents->x + extents->width) - surface->extents.x; + surface->extents.height = ceil (extents->y + extents->height) - surface->extents.y; + + surface->unbounded = FALSE; + } + + _cairo_array_init (&surface->commands, sizeof (cairo_command_t *)); + + surface->base.is_clear = TRUE; + + surface->bbtree.left = surface->bbtree.right = NULL; + surface->bbtree.chain = INVALID_CHAIN; + + surface->indices = NULL; + surface->num_indices = 0; + surface->optimize_clears = TRUE; + surface->has_bilevel_alpha = FALSE; + surface->has_only_op_over = FALSE; + surface->has_tags = FALSE; + + CAIRO_MUTEX_INIT (surface->mutex); + + cairo_list_init (&surface->region_array_list); + + return &surface->base; +} + +static cairo_surface_t * +_cairo_recording_surface_create_similar (void *abstract_surface, + cairo_content_t content, + int width, + int height) +{ + cairo_rectangle_t extents; + extents.x = extents.y = 0; + extents.width = width; + extents.height = height; + return cairo_recording_surface_create (content, &extents); +} + +static void +destroy_pattern_region_array (const cairo_pattern_t *pattern, + unsigned int region_id) +{ + if (region_id != 0) { + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) pattern; + if (_cairo_surface_is_recording (surface_pattern->surface)) + _cairo_recording_surface_region_array_remove (surface_pattern->surface, region_id); + } + } +} + +static void +_cairo_recording_surface_region_array_destroy (cairo_recording_surface_t *surface, + cairo_recording_regions_array_t *region_array) +{ + cairo_command_t **elements; + cairo_recording_region_element_t *region_elements; + int i, num_elements; + + num_elements = MIN(surface->commands.num_elements, _cairo_array_num_elements(®ion_array->regions)); + elements = _cairo_array_index (&surface->commands, 0); + region_elements = _cairo_array_index (®ion_array->regions, 0); + for (i = 0; i < num_elements; i++) { + cairo_command_t *command = elements[i]; + cairo_recording_region_element_t *region_element = ®ion_elements[i]; + + switch (command->header.type) { + case CAIRO_COMMAND_PAINT: + destroy_pattern_region_array (&command->paint.source.base, region_element->source_id); + break; + + case CAIRO_COMMAND_MASK: + destroy_pattern_region_array (&command->mask.source.base, region_element->source_id); + destroy_pattern_region_array (&command->mask.mask.base, region_element->mask_id); + break; + + case CAIRO_COMMAND_STROKE: + destroy_pattern_region_array (&command->stroke.source.base, region_element->source_id); + break; + + case CAIRO_COMMAND_FILL: + destroy_pattern_region_array (&command->fill.source.base, region_element->source_id); + break; + + case CAIRO_COMMAND_SHOW_TEXT_GLYPHS: + destroy_pattern_region_array (&command->show_text_glyphs.source.base, region_element->source_id); + break; + + case CAIRO_COMMAND_TAG: + break; + + default: + ASSERT_NOT_REACHED; + } + } + + _cairo_array_fini (®ion_array->regions); + free (region_array); +} + +static cairo_status_t +_cairo_recording_surface_finish (void *abstract_surface) +{ + cairo_recording_surface_t *surface = abstract_surface; + cairo_command_t **elements; + int i, num_elements; + cairo_recording_regions_array_t *region_array, *region_next; + + /* Normally backend surfaces hold a reference to the surface as + * well as the region and free the region before the surface. So + * the regions should already be freed at this point but just in + * case we ensure the regions are freed before destroying the + * surface. */ + cairo_list_foreach_entry_safe (region_array, region_next, + cairo_recording_regions_array_t, + &surface->region_array_list, link) + { + cairo_list_del (®ion_array->link); + _cairo_recording_surface_region_array_destroy (surface, region_array); + } + + num_elements = surface->commands.num_elements; + elements = _cairo_array_index (&surface->commands, 0); + for (i = 0; i < num_elements; i++) { + cairo_command_t *command = elements[i]; + + switch (command->header.type) { + case CAIRO_COMMAND_PAINT: + _cairo_pattern_fini (&command->paint.source.base); + break; + + case CAIRO_COMMAND_MASK: + _cairo_pattern_fini (&command->mask.source.base); + _cairo_pattern_fini (&command->mask.mask.base); + break; + + case CAIRO_COMMAND_STROKE: + _cairo_pattern_fini (&command->stroke.source.base); + _cairo_path_fixed_fini (&command->stroke.path); + _cairo_stroke_style_fini (&command->stroke.style); + break; + + case CAIRO_COMMAND_FILL: + _cairo_pattern_fini (&command->fill.source.base); + _cairo_path_fixed_fini (&command->fill.path); + break; + + case CAIRO_COMMAND_SHOW_TEXT_GLYPHS: + _cairo_pattern_fini (&command->show_text_glyphs.source.base); + free (command->show_text_glyphs.utf8); + free (command->show_text_glyphs.glyphs); + free (command->show_text_glyphs.clusters); + cairo_scaled_font_destroy (command->show_text_glyphs.scaled_font); + break; + + case CAIRO_COMMAND_TAG: + free (command->tag.tag_name); + if (command->tag.begin) { + free (command->tag.attributes); + } + break; + + default: + ASSERT_NOT_REACHED; + } + + _cairo_clip_destroy (command->header.clip); + free (command); + } + + _cairo_array_fini (&surface->commands); + + if (surface->bbtree.left) + bbtree_del (surface->bbtree.left); + if (surface->bbtree.right) + bbtree_del (surface->bbtree.right); + + free (surface->indices); + + return CAIRO_STATUS_SUCCESS; +} + +struct proxy { + cairo_surface_t base; + cairo_surface_t *image; +}; + +static cairo_status_t +proxy_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + struct proxy *proxy = abstract_surface; + return _cairo_surface_acquire_source_image (proxy->image, image_out, image_extra); +} + +static void +proxy_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *image_extra) +{ + struct proxy *proxy = abstract_surface; + _cairo_surface_release_source_image (proxy->image, image, image_extra); +} + +static cairo_status_t +proxy_finish (void *abstract_surface) +{ + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_surface_backend_t proxy_backend = { + CAIRO_INTERNAL_SURFACE_TYPE_NULL, + proxy_finish, + NULL, + + NULL, /* create similar */ + NULL, /* create similar image */ + NULL, /* map to image */ + NULL, /* unmap image */ + + _cairo_surface_default_source, + proxy_acquire_source_image, + proxy_release_source_image, +}; + +static cairo_surface_t * +attach_proxy (cairo_surface_t *source, + cairo_surface_t *image) +{ + struct proxy *proxy; + + proxy = _cairo_calloc (sizeof (*proxy)); + if (unlikely (proxy == NULL)) + return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_surface_init (&proxy->base, &proxy_backend, NULL, image->content, FALSE); + + proxy->image = image; + _cairo_surface_attach_snapshot (source, &proxy->base, NULL); + + return &proxy->base; +} + +static void +detach_proxy (cairo_surface_t *source, + cairo_surface_t *proxy) +{ + cairo_surface_finish (proxy); + cairo_surface_destroy (proxy); +} + +static cairo_surface_t * +get_proxy (cairo_surface_t *proxy) +{ + return ((struct proxy *)proxy)->image; +} + +static cairo_status_t +_cairo_recording_surface_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + cairo_recording_surface_t *surface = abstract_surface; + cairo_surface_t *image, *proxy; + cairo_status_t status; + + proxy = _cairo_surface_has_snapshot (abstract_surface, &proxy_backend); + if (proxy != NULL) { + *image_out = (cairo_image_surface_t *) + cairo_surface_reference (get_proxy (proxy)); + *image_extra = NULL; + return CAIRO_STATUS_SUCCESS; + } + + if (surface->unbounded) + return CAIRO_INT_STATUS_UNSUPPORTED; + image = _cairo_image_surface_create_with_content (surface->base.content, + surface->extents.width, + surface->extents.height); + cairo_surface_set_device_offset (image, -surface->extents.x, -surface->extents.y); + if (unlikely (image->status)) + return image->status; + + cairo_surface_set_device_offset(image, -surface->extents.x, -surface->extents.y); + + /* Handle recursion by returning future reads from the current image */ + proxy = attach_proxy (abstract_surface, image); + status = _cairo_recording_surface_replay (&surface->base, image); + detach_proxy (abstract_surface, proxy); + + if (unlikely (status)) { + cairo_surface_destroy (image); + return status; + } + + *image_out = (cairo_image_surface_t *) image; + *image_extra = NULL; + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_recording_surface_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *image_extra) +{ + cairo_surface_destroy (&image->base); +} + +static cairo_status_t +_command_init (cairo_recording_surface_t *surface, + cairo_command_header_t *command, + cairo_command_type_t type, + cairo_operator_t op, + cairo_composite_rectangles_t *composite) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + command->type = type; + command->op = op; + + command->extents = composite ? composite->unbounded : _cairo_empty_rectangle; + command->chain = NULL; + command->index = surface->commands.num_elements; + + /* steal the clip */ + command->clip = NULL; + if (composite && ! _cairo_composite_rectangles_can_reduce_clip (composite, + composite->clip)) + { + command->clip = composite->clip; + composite->clip = NULL; + } + + return status; +} + +static void +_cairo_recording_surface_break_self_copy_loop (cairo_recording_surface_t *surface) +{ + cairo_surface_flush (&surface->base); +} + +static cairo_status_t +_cairo_recording_surface_commit (cairo_recording_surface_t *surface, + cairo_command_header_t *command) +{ + _cairo_recording_surface_break_self_copy_loop (surface); + return _cairo_array_append (&surface->commands, &command); +} + +static void +_cairo_recording_surface_reset (cairo_recording_surface_t *surface) +{ + /* Reset the commands and temporaries */ + _cairo_recording_surface_finish (surface); + + surface->bbtree.left = surface->bbtree.right = NULL; + surface->bbtree.chain = INVALID_CHAIN; + + surface->indices = NULL; + surface->num_indices = 0; + + _cairo_array_init (&surface->commands, sizeof (cairo_command_t *)); +} + +static cairo_int_status_t +_cairo_recording_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_recording_surface_t *surface = abstract_surface; + cairo_command_paint_t *command; + cairo_composite_rectangles_t composite; + + TRACE ((stderr, "%s: surface=%d\n", __FUNCTION__, surface->base.unique_id)); + + if (op == CAIRO_OPERATOR_CLEAR && clip == NULL) { + if (surface->optimize_clears) { + _cairo_recording_surface_reset (surface); + return CAIRO_STATUS_SUCCESS; + } + } + + if (clip == NULL && surface->optimize_clears && + (op == CAIRO_OPERATOR_SOURCE || + (op == CAIRO_OPERATOR_OVER && + (surface->base.is_clear || _cairo_pattern_is_opaque_solid (source))))) + { + _cairo_recording_surface_reset (surface); + } + + status = _cairo_composite_rectangles_init_for_paint (&composite, + &surface->base, + op, source, + clip); + if (unlikely (status)) + return status; + + command = _cairo_calloc (sizeof (cairo_command_paint_t)); + if (unlikely (command == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_COMPOSITE; + } + + status = _command_init (surface, + &command->header, CAIRO_COMMAND_PAINT, op, + &composite); + if (unlikely (status)) + goto CLEANUP_COMMAND; + + status = _cairo_pattern_init_snapshot (&command->source.base, source); + if (unlikely (status)) + goto CLEANUP_COMMAND; + + status = _cairo_recording_surface_commit (surface, &command->header); + if (unlikely (status)) + goto CLEANUP_SOURCE; + + _cairo_recording_surface_destroy_bbtree (surface); + + _cairo_composite_rectangles_fini (&composite); + return CAIRO_STATUS_SUCCESS; + + CLEANUP_SOURCE: + _cairo_pattern_fini (&command->source.base); + CLEANUP_COMMAND: + _cairo_clip_destroy (command->header.clip); + free (command); +CLEANUP_COMPOSITE: + _cairo_composite_rectangles_fini (&composite); + return status; +} + +static cairo_int_status_t +_cairo_recording_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_recording_surface_t *surface = abstract_surface; + cairo_command_mask_t *command; + cairo_composite_rectangles_t composite; + + TRACE ((stderr, "%s: surface=%d\n", __FUNCTION__, surface->base.unique_id)); + + status = _cairo_composite_rectangles_init_for_mask (&composite, + &surface->base, + op, source, mask, + clip); + if (unlikely (status)) + return status; + + command = _cairo_calloc (sizeof (cairo_command_mask_t)); + if (unlikely (command == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_COMPOSITE; + } + + status = _command_init (surface, + &command->header, CAIRO_COMMAND_MASK, op, + &composite); + if (unlikely (status)) + goto CLEANUP_COMMAND; + + status = _cairo_pattern_init_snapshot (&command->source.base, source); + if (unlikely (status)) + goto CLEANUP_COMMAND; + + status = _cairo_pattern_init_snapshot (&command->mask.base, mask); + if (unlikely (status)) + goto CLEANUP_SOURCE; + + status = _cairo_recording_surface_commit (surface, &command->header); + if (unlikely (status)) + goto CLEANUP_MASK; + + _cairo_recording_surface_destroy_bbtree (surface); + + _cairo_composite_rectangles_fini (&composite); + return CAIRO_STATUS_SUCCESS; + + CLEANUP_MASK: + _cairo_pattern_fini (&command->mask.base); + CLEANUP_SOURCE: + _cairo_pattern_fini (&command->source.base); + CLEANUP_COMMAND: + _cairo_clip_destroy (command->header.clip); + free (command); +CLEANUP_COMPOSITE: + _cairo_composite_rectangles_fini (&composite); + return status; +} + +static cairo_int_status_t +_cairo_recording_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_recording_surface_t *surface = abstract_surface; + cairo_command_stroke_t *command; + cairo_composite_rectangles_t composite; + + TRACE ((stderr, "%s: surface=%d\n", __FUNCTION__, surface->base.unique_id)); + + status = _cairo_composite_rectangles_init_for_stroke (&composite, + &surface->base, + op, source, + path, style, ctm, + clip); + if (unlikely (status)) + return status; + + command = _cairo_calloc (sizeof (cairo_command_stroke_t)); + if (unlikely (command == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_COMPOSITE; + } + + status = _command_init (surface, + &command->header, CAIRO_COMMAND_STROKE, op, + &composite); + if (unlikely (status)) + goto CLEANUP_COMMAND; + + status = _cairo_pattern_init_snapshot (&command->source.base, source); + if (unlikely (status)) + goto CLEANUP_COMMAND; + + status = _cairo_path_fixed_init_copy (&command->path, path); + if (unlikely (status)) + goto CLEANUP_SOURCE; + + status = _cairo_stroke_style_init_copy (&command->style, style); + if (unlikely (status)) + goto CLEANUP_PATH; + + command->ctm = *ctm; + command->ctm_inverse = *ctm_inverse; + command->tolerance = tolerance; + command->antialias = antialias; + + status = _cairo_recording_surface_commit (surface, &command->header); + if (unlikely (status)) + goto CLEANUP_STYLE; + + _cairo_recording_surface_destroy_bbtree (surface); + + _cairo_composite_rectangles_fini (&composite); + return CAIRO_STATUS_SUCCESS; + + CLEANUP_STYLE: + _cairo_stroke_style_fini (&command->style); + CLEANUP_PATH: + _cairo_path_fixed_fini (&command->path); + CLEANUP_SOURCE: + _cairo_pattern_fini (&command->source.base); + CLEANUP_COMMAND: + _cairo_clip_destroy (command->header.clip); + free (command); +CLEANUP_COMPOSITE: + _cairo_composite_rectangles_fini (&composite); + return status; +} + +static cairo_int_status_t +_cairo_recording_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_recording_surface_t *surface = abstract_surface; + cairo_command_fill_t *command; + cairo_composite_rectangles_t composite; + + TRACE ((stderr, "%s: surface=%d\n", __FUNCTION__, surface->base.unique_id)); + + status = _cairo_composite_rectangles_init_for_fill (&composite, + &surface->base, + op, source, path, + clip); + if (unlikely (status)) + return status; + + command = _cairo_calloc (sizeof (cairo_command_fill_t)); + if (unlikely (command == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_COMPOSITE; + } + + status =_command_init (surface, + &command->header, CAIRO_COMMAND_FILL, op, + &composite); + if (unlikely (status)) + goto CLEANUP_COMMAND; + + status = _cairo_pattern_init_snapshot (&command->source.base, source); + if (unlikely (status)) + goto CLEANUP_COMMAND; + + status = _cairo_path_fixed_init_copy (&command->path, path); + if (unlikely (status)) + goto CLEANUP_SOURCE; + + command->fill_rule = fill_rule; + command->tolerance = tolerance; + command->antialias = antialias; + + status = _cairo_recording_surface_commit (surface, &command->header); + if (unlikely (status)) + goto CLEANUP_PATH; + + _cairo_recording_surface_destroy_bbtree (surface); + + _cairo_composite_rectangles_fini (&composite); + return CAIRO_STATUS_SUCCESS; + + CLEANUP_PATH: + _cairo_path_fixed_fini (&command->path); + CLEANUP_SOURCE: + _cairo_pattern_fini (&command->source.base); + CLEANUP_COMMAND: + _cairo_clip_destroy (command->header.clip); + free (command); +CLEANUP_COMPOSITE: + _cairo_composite_rectangles_fini (&composite); + return status; +} + +static cairo_bool_t +_cairo_recording_surface_has_show_text_glyphs (void *abstract_surface) +{ + return TRUE; +} + +static cairo_int_status_t +_cairo_recording_surface_show_text_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const char *utf8, + int utf8_len, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_recording_surface_t *surface = abstract_surface; + cairo_command_show_text_glyphs_t *command; + cairo_composite_rectangles_t composite; + + TRACE ((stderr, "%s: surface=%d\n", __FUNCTION__, surface->base.unique_id)); + + status = _cairo_composite_rectangles_init_for_glyphs (&composite, + &surface->base, + op, source, + scaled_font, + glyphs, num_glyphs, + clip, + NULL); + if (unlikely (status)) + return status; + + command = _cairo_calloc (sizeof (cairo_command_show_text_glyphs_t)); + if (unlikely (command == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_COMPOSITE; + } + + status = _command_init (surface, + &command->header, CAIRO_COMMAND_SHOW_TEXT_GLYPHS, + op, &composite); + if (unlikely (status)) + goto CLEANUP_COMMAND; + + status = _cairo_pattern_init_snapshot (&command->source.base, source); + if (unlikely (status)) + goto CLEANUP_COMMAND; + + command->utf8 = NULL; + command->utf8_len = utf8_len; + command->glyphs = NULL; + command->num_glyphs = num_glyphs; + command->clusters = NULL; + command->num_clusters = num_clusters; + + if (utf8_len) { + command->utf8 = _cairo_malloc (utf8_len); + if (unlikely (command->utf8 == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_ARRAYS; + } + memcpy (command->utf8, utf8, utf8_len); + } + if (num_glyphs) { + command->glyphs = _cairo_malloc_ab (num_glyphs, sizeof (glyphs[0])); + if (unlikely (command->glyphs == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_ARRAYS; + } + memcpy (command->glyphs, glyphs, sizeof (glyphs[0]) * num_glyphs); + } + if (num_clusters) { + command->clusters = _cairo_malloc_ab (num_clusters, sizeof (clusters[0])); + if (unlikely (command->clusters == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_ARRAYS; + } + memcpy (command->clusters, clusters, sizeof (clusters[0]) * num_clusters); + } + + command->cluster_flags = cluster_flags; + + status = scaled_font->status; + if (unlikely (status)) + goto CLEANUP_ARRAYS; + + command->scaled_font = cairo_scaled_font_reference (scaled_font); + + status = _cairo_recording_surface_commit (surface, &command->header); + if (unlikely (status)) + goto CLEANUP_SCALED_FONT; + + _cairo_composite_rectangles_fini (&composite); + return CAIRO_STATUS_SUCCESS; + + CLEANUP_SCALED_FONT: + cairo_scaled_font_destroy (command->scaled_font); + CLEANUP_ARRAYS: + free (command->utf8); + free (command->glyphs); + free (command->clusters); + + _cairo_pattern_fini (&command->source.base); + CLEANUP_COMMAND: + _cairo_clip_destroy (command->header.clip); + free (command); +CLEANUP_COMPOSITE: + _cairo_composite_rectangles_fini (&composite); + return status; +} + +static cairo_int_status_t +_cairo_recording_surface_tag (void *abstract_surface, + cairo_bool_t begin, + const char *tag_name, + const char *attributes) +{ + cairo_status_t status; + cairo_recording_surface_t *surface = abstract_surface; + cairo_command_tag_t *command; + + TRACE ((stderr, "%s: surface=%d\n", __FUNCTION__, surface->base.unique_id)); + + surface->has_tags = TRUE; + + command = _cairo_calloc (sizeof (cairo_command_tag_t)); + if (unlikely (command == NULL)) { + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + status = _command_init (surface, + &command->header, CAIRO_COMMAND_TAG, CAIRO_OPERATOR_SOURCE, + NULL); + if (unlikely (status)) + goto CLEANUP_COMMAND; + + command->begin = begin; + command->tag_name = strdup (tag_name); + if (unlikely (command->tag_name == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_COMMAND; + } + if (begin) { + if (attributes) { + command->attributes = strdup (attributes); + if (unlikely (command->attributes == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_STRINGS; + } + } + } + + status = _cairo_recording_surface_commit (surface, &command->header); + if (unlikely (status)) + goto CLEANUP_STRINGS; + + _cairo_recording_surface_destroy_bbtree (surface); + + return CAIRO_STATUS_SUCCESS; + + CLEANUP_STRINGS: + free (command->tag_name); + free (command->attributes); + CLEANUP_COMMAND: + _cairo_clip_destroy (command->header.clip); + free (command); + return status; +} + +static cairo_bool_t +_cairo_recording_surface_supports_color_glyph (void *abstract_surface, + cairo_scaled_font_t *scaled_font, + unsigned long glyph_index) +{ + return TRUE; +} + +static void +_command_init_copy (cairo_recording_surface_t *surface, + cairo_command_header_t *dst, + const cairo_command_header_t *src) +{ + dst->type = src->type; + dst->op = src->op; + + dst->extents = src->extents; + dst->chain = NULL; + dst->index = surface->commands.num_elements; + + dst->clip = _cairo_clip_copy (src->clip); +} + +static cairo_status_t +_cairo_recording_surface_copy__paint (cairo_recording_surface_t *surface, + const cairo_command_t *src) +{ + cairo_command_paint_t *command; + cairo_status_t status; + + command = _cairo_calloc (sizeof (*command)); + if (unlikely (command == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto err; + } + + _command_init_copy (surface, &command->header, &src->header); + + status = _cairo_pattern_init_copy (&command->source.base, + &src->paint.source.base); + if (unlikely (status)) + goto err_command; + + status = _cairo_recording_surface_commit (surface, &command->header); + if (unlikely (status)) + goto err_source; + + return CAIRO_STATUS_SUCCESS; + +err_source: + _cairo_pattern_fini (&command->source.base); +err_command: + free(command); +err: + return status; +} + +static cairo_status_t +_cairo_recording_surface_copy__mask (cairo_recording_surface_t *surface, + const cairo_command_t *src) +{ + cairo_command_mask_t *command; + cairo_status_t status; + + command = _cairo_calloc (sizeof (*command)); + if (unlikely (command == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto err; + } + + _command_init_copy (surface, &command->header, &src->header); + + status = _cairo_pattern_init_copy (&command->source.base, + &src->mask.source.base); + if (unlikely (status)) + goto err_command; + + status = _cairo_pattern_init_copy (&command->mask.base, + &src->mask.mask.base); + if (unlikely (status)) + goto err_source; + + status = _cairo_recording_surface_commit (surface, &command->header); + if (unlikely (status)) + goto err_mask; + + return CAIRO_STATUS_SUCCESS; + +err_mask: + _cairo_pattern_fini (&command->mask.base); +err_source: + _cairo_pattern_fini (&command->source.base); +err_command: + free(command); +err: + return status; +} + +static cairo_status_t +_cairo_recording_surface_copy__stroke (cairo_recording_surface_t *surface, + const cairo_command_t *src) +{ + cairo_command_stroke_t *command; + cairo_status_t status; + + command = _cairo_calloc (sizeof (*command)); + if (unlikely (command == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto err; + } + + _command_init_copy (surface, &command->header, &src->header); + + status = _cairo_pattern_init_copy (&command->source.base, + &src->stroke.source.base); + if (unlikely (status)) + goto err_command; + + status = _cairo_path_fixed_init_copy (&command->path, &src->stroke.path); + if (unlikely (status)) + goto err_source; + + status = _cairo_stroke_style_init_copy (&command->style, + &src->stroke.style); + if (unlikely (status)) + goto err_path; + + command->ctm = src->stroke.ctm; + command->ctm_inverse = src->stroke.ctm_inverse; + command->tolerance = src->stroke.tolerance; + command->antialias = src->stroke.antialias; + + status = _cairo_recording_surface_commit (surface, &command->header); + if (unlikely (status)) + goto err_style; + + return CAIRO_STATUS_SUCCESS; + +err_style: + _cairo_stroke_style_fini (&command->style); +err_path: + _cairo_path_fixed_fini (&command->path); +err_source: + _cairo_pattern_fini (&command->source.base); +err_command: + free(command); +err: + return status; +} + +static cairo_status_t +_cairo_recording_surface_copy__fill (cairo_recording_surface_t *surface, + const cairo_command_t *src) +{ + cairo_command_fill_t *command; + cairo_status_t status; + + command = _cairo_calloc (sizeof (*command)); + if (unlikely (command == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto err; + } + + _command_init_copy (surface, &command->header, &src->header); + + status = _cairo_pattern_init_copy (&command->source.base, + &src->fill.source.base); + if (unlikely (status)) + goto err_command; + + status = _cairo_path_fixed_init_copy (&command->path, &src->fill.path); + if (unlikely (status)) + goto err_source; + + command->fill_rule = src->fill.fill_rule; + command->tolerance = src->fill.tolerance; + command->antialias = src->fill.antialias; + + status = _cairo_recording_surface_commit (surface, &command->header); + if (unlikely (status)) + goto err_path; + + return CAIRO_STATUS_SUCCESS; + +err_path: + _cairo_path_fixed_fini (&command->path); +err_source: + _cairo_pattern_fini (&command->source.base); +err_command: + free(command); +err: + return status; +} + +static cairo_status_t +_cairo_recording_surface_copy__glyphs (cairo_recording_surface_t *surface, + const cairo_command_t *src) +{ + cairo_command_show_text_glyphs_t *command; + cairo_status_t status; + + command = _cairo_calloc (sizeof (*command)); + if (unlikely (command == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto err; + } + + _command_init_copy (surface, &command->header, &src->header); + + status = _cairo_pattern_init_copy (&command->source.base, + &src->show_text_glyphs.source.base); + if (unlikely (status)) + goto err_command; + + command->utf8 = NULL; + command->utf8_len = src->show_text_glyphs.utf8_len; + command->glyphs = NULL; + command->num_glyphs = src->show_text_glyphs.num_glyphs; + command->clusters = NULL; + command->num_clusters = src->show_text_glyphs.num_clusters; + + if (command->utf8_len) { + command->utf8 = _cairo_malloc (command->utf8_len); + if (unlikely (command->utf8 == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto err_arrays; + } + memcpy (command->utf8, src->show_text_glyphs.utf8, command->utf8_len); + } + if (command->num_glyphs) { + command->glyphs = _cairo_malloc_ab (command->num_glyphs, + sizeof (command->glyphs[0])); + if (unlikely (command->glyphs == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto err_arrays; + } + memcpy (command->glyphs, src->show_text_glyphs.glyphs, + sizeof (command->glyphs[0]) * command->num_glyphs); + } + if (command->num_clusters) { + command->clusters = _cairo_malloc_ab (command->num_clusters, + sizeof (command->clusters[0])); + if (unlikely (command->clusters == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto err_arrays; + } + memcpy (command->clusters, src->show_text_glyphs.clusters, + sizeof (command->clusters[0]) * command->num_clusters); + } + + command->cluster_flags = src->show_text_glyphs.cluster_flags; + + command->scaled_font = + cairo_scaled_font_reference (src->show_text_glyphs.scaled_font); + + status = _cairo_recording_surface_commit (surface, &command->header); + if (unlikely (status)) + goto err_arrays; + + return CAIRO_STATUS_SUCCESS; + +err_arrays: + free (command->utf8); + free (command->glyphs); + free (command->clusters); + _cairo_pattern_fini (&command->source.base); +err_command: + free(command); +err: + return status; +} + +static cairo_status_t +_cairo_recording_surface_copy__tag (cairo_recording_surface_t *surface, + const cairo_command_t *src) +{ + cairo_command_tag_t *command; + cairo_status_t status; + + command = _cairo_calloc (sizeof (*command)); + if (unlikely (command == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto err; + } + + _command_init_copy (surface, &command->header, &src->header); + + command->begin = src->tag.begin; + command->tag_name = strdup (src->tag.tag_name); + if (unlikely (command->tag_name == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto err_command; + } + if (src->tag.begin) { + if (src->tag.attributes) { + command->attributes = strdup (src->tag.attributes); + if (unlikely (command->attributes == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto err_command; + } + } + } + + status = _cairo_recording_surface_commit (surface, &command->header); + if (unlikely (status)) + goto err_command; + + return CAIRO_STATUS_SUCCESS; + +err_command: + free(command->tag_name); + free(command->attributes); + free(command); +err: + return status; +} + +static cairo_status_t +_cairo_recording_surface_copy (cairo_recording_surface_t *dst, + cairo_recording_surface_t *src) +{ + cairo_command_t **elements; + int i, num_elements; + cairo_status_t status; + + elements = _cairo_array_index (&src->commands, 0); + num_elements = src->commands.num_elements; + for (i = 0; i < num_elements; i++) { + const cairo_command_t *command = elements[i]; + + switch (command->header.type) { + case CAIRO_COMMAND_PAINT: + status = _cairo_recording_surface_copy__paint (dst, command); + break; + + case CAIRO_COMMAND_MASK: + status = _cairo_recording_surface_copy__mask (dst, command); + break; + + case CAIRO_COMMAND_STROKE: + status = _cairo_recording_surface_copy__stroke (dst, command); + break; + + case CAIRO_COMMAND_FILL: + status = _cairo_recording_surface_copy__fill (dst, command); + break; + + case CAIRO_COMMAND_SHOW_TEXT_GLYPHS: + status = _cairo_recording_surface_copy__glyphs (dst, command); + break; + + case CAIRO_COMMAND_TAG: + status = _cairo_recording_surface_copy__tag (dst, command); + break; + + default: + ASSERT_NOT_REACHED; + } + + if (unlikely (status)) + return status; + } + + return CAIRO_STATUS_SUCCESS; +} + +/** + * _cairo_recording_surface_snapshot: + * @surface: a #cairo_surface_t which must be a recording surface + * + * Make an immutable copy of @surface. It is an error to call a + * surface-modifying function on the result of this function. + * + * The caller owns the return value and should call + * cairo_surface_destroy() when finished with it. This function will not + * return %NULL, but will return a nil surface instead. + * + * Return value: The snapshot surface. + **/ +static cairo_surface_t * +_cairo_recording_surface_snapshot (void *abstract_other) +{ + cairo_recording_surface_t *other = abstract_other; + cairo_recording_surface_t *surface; + cairo_status_t status; + + surface = _cairo_calloc (sizeof (cairo_recording_surface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_surface_init (&surface->base, + &cairo_recording_surface_backend, + NULL, /* device */ + other->base.content, + other->base.is_vector); + + surface->extents_pixels = other->extents_pixels; + surface->extents = other->extents; + surface->unbounded = other->unbounded; + surface->has_bilevel_alpha = other->has_bilevel_alpha; + surface->has_only_op_over = other->has_only_op_over; + surface->has_tags = other->has_tags; + + surface->base.is_clear = other->base.is_clear; + + surface->bbtree.left = surface->bbtree.right = NULL; + surface->bbtree.chain = INVALID_CHAIN; + + surface->indices = NULL; + surface->num_indices = 0; + surface->optimize_clears = TRUE; + + CAIRO_MUTEX_INIT (surface->mutex); + + cairo_list_init (&surface->region_array_list); + + _cairo_array_init (&surface->commands, sizeof (cairo_command_t *)); + status = _cairo_recording_surface_copy (surface, other); + if (unlikely (status)) { + cairo_surface_destroy (&surface->base); + return _cairo_surface_create_in_error (status); + } + + return &surface->base; +} + +static cairo_bool_t +_cairo_recording_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle) +{ + cairo_recording_surface_t *surface = abstract_surface; + + if (surface->unbounded) + return FALSE; + + *rectangle = surface->extents; + return TRUE; +} + +static const cairo_surface_backend_t cairo_recording_surface_backend = { + CAIRO_SURFACE_TYPE_RECORDING, + _cairo_recording_surface_finish, + + _cairo_default_context_create, + + _cairo_recording_surface_create_similar, + NULL, /* create similar image */ + NULL, /* map to image */ + NULL, /* unmap image */ + + _cairo_surface_default_source, + _cairo_recording_surface_acquire_source_image, + _cairo_recording_surface_release_source_image, + _cairo_recording_surface_snapshot, + + NULL, /* copy_page */ + NULL, /* show_page */ + + _cairo_recording_surface_get_extents, + NULL, /* get_font_options */ + + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + + /* Here are the 5 basic drawing operations, (which are in some + * sense the only things that cairo_recording_surface should need to + * implement). However, we implement the more generic show_text_glyphs + * instead of show_glyphs. One or the other is eough. */ + + _cairo_recording_surface_paint, + _cairo_recording_surface_mask, + _cairo_recording_surface_stroke, + _cairo_recording_surface_fill, + NULL, /* fill-stroke */ + NULL, + _cairo_recording_surface_has_show_text_glyphs, + _cairo_recording_surface_show_text_glyphs, + NULL, /* get_supported_mime_types */ + _cairo_recording_surface_tag, + _cairo_recording_surface_supports_color_glyph, + NULL, /* analyze_recording_surface */ + NULL, /* command_id */ +}; + +static unsigned int +_cairo_recording_surface_regions_allocate_unique_id (void) +{ + static cairo_atomic_int_t unique_id; + +#if CAIRO_NO_MUTEX + if (++unique_id == 0) + unique_id = 1; + return unique_id; +#else + int old, id; + + do { + old = _cairo_atomic_uint_get (&unique_id); + id = old + 1; + if (id == 0) + id = 1; + } while (! _cairo_atomic_uint_cmpxchg (&unique_id, old, id)); + + return id; +#endif +} + +static cairo_recording_regions_array_t * +_cairo_recording_surface_region_array_find (cairo_recording_surface_t *surface, + unsigned int id) +{ + cairo_recording_regions_array_t *regions; + + cairo_list_foreach_entry (regions, cairo_recording_regions_array_t, + &surface->region_array_list, link) + { + if (regions->id == id) + return regions; + } + + return NULL; +} + +/* Create and initialize a new #cairo_recording_regions_array_t. Attach + * it to the recording surface and return its id + */ +cairo_status_t +_cairo_recording_surface_region_array_attach (cairo_surface_t *abstract_surface, + unsigned int *id) +{ + cairo_recording_regions_array_t *region_array; + cairo_recording_surface_t *surface = (cairo_recording_surface_t *) abstract_surface; + + assert (_cairo_surface_is_recording (abstract_surface)); + + region_array = _cairo_calloc (sizeof (cairo_recording_regions_array_t)); + if (region_array == NULL) { + *id = 0; + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + region_array->id = _cairo_recording_surface_regions_allocate_unique_id (); + + CAIRO_REFERENCE_COUNT_INIT (®ion_array->ref_count, 1); + + _cairo_array_init (®ion_array->regions, sizeof (cairo_recording_region_element_t)); + + CAIRO_MUTEX_LOCK (surface->mutex); + cairo_list_add (®ion_array->link, &surface->region_array_list); + CAIRO_MUTEX_UNLOCK (surface->mutex); + + *id = region_array->id; + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_recording_surface_region_array_remove (cairo_surface_t *abstract_surface, + unsigned int id) +{ + cairo_recording_regions_array_t *region_array; + cairo_recording_surface_t *surface = (cairo_recording_surface_t *) abstract_surface; + + if (id == 0) + return; + + assert (_cairo_surface_is_recording (abstract_surface)); + + CAIRO_MUTEX_LOCK (surface->mutex); + region_array = _cairo_recording_surface_region_array_find (surface, id); + if (region_array) { + if (_cairo_reference_count_dec_and_test (®ion_array->ref_count)) + cairo_list_del (®ion_array->link); + else + region_array = NULL; + } + + CAIRO_MUTEX_UNLOCK (surface->mutex); + + if (region_array) + _cairo_recording_surface_region_array_destroy (surface, region_array); +} + +void +_cairo_recording_surface_region_array_reference (cairo_surface_t *abstract_surface, + unsigned int id) +{ + cairo_recording_regions_array_t *region_array; + cairo_recording_surface_t *surface = (cairo_recording_surface_t *) abstract_surface; + + assert (_cairo_surface_is_recording (abstract_surface)); + + CAIRO_MUTEX_LOCK (surface->mutex); + region_array = _cairo_recording_surface_region_array_find (surface, id); + if (region_array) { + _cairo_reference_count_inc (®ion_array->ref_count); + } + + CAIRO_MUTEX_UNLOCK (surface->mutex); +} + +cairo_int_status_t +_cairo_recording_surface_get_path (cairo_surface_t *abstract_surface, + cairo_path_fixed_t *path) +{ + cairo_recording_surface_t *surface; + cairo_command_t **elements; + int i, num_elements; + cairo_int_status_t status; + + if (unlikely (abstract_surface->status)) + return abstract_surface->status; + + surface = (cairo_recording_surface_t *) abstract_surface; + status = CAIRO_STATUS_SUCCESS; + + num_elements = surface->commands.num_elements; + elements = _cairo_array_index (&surface->commands, 0); + for (i = 0; i < num_elements; i++) { + cairo_command_t *command = elements[i]; + + switch (command->header.type) { + case CAIRO_COMMAND_PAINT: + case CAIRO_COMMAND_MASK: + status = CAIRO_INT_STATUS_UNSUPPORTED; + break; + + case CAIRO_COMMAND_STROKE: + { + cairo_traps_t traps; + + _cairo_traps_init (&traps); + + /* XXX call cairo_stroke_to_path() when that is implemented */ + status = _cairo_path_fixed_stroke_polygon_to_traps (&command->stroke.path, + &command->stroke.style, + &command->stroke.ctm, + &command->stroke.ctm_inverse, + command->stroke.tolerance, + &traps); + + if (status == CAIRO_INT_STATUS_SUCCESS) + status = _cairo_traps_path (&traps, path); + + _cairo_traps_fini (&traps); + break; + } + case CAIRO_COMMAND_FILL: + { + status = _cairo_path_fixed_append (path, + &command->fill.path, + 0, 0); + break; + } + case CAIRO_COMMAND_SHOW_TEXT_GLYPHS: + { + status = _cairo_scaled_font_glyph_path (command->show_text_glyphs.scaled_font, + command->show_text_glyphs.glyphs, + command->show_text_glyphs.num_glyphs, + path); + break; + } + + case CAIRO_COMMAND_TAG: + break; + + default: + ASSERT_NOT_REACHED; + } + + if (unlikely (status)) + break; + } + + return status; +} + +static int +_cairo_recording_surface_get_visible_commands (cairo_recording_surface_t *surface, + const cairo_rectangle_int_t *extents) +{ + unsigned int num_visible, *indices; + cairo_box_t box; + + if (surface->commands.num_elements == 0) + return 0; + + _cairo_box_from_rectangle (&box, extents); + + if (surface->bbtree.chain == INVALID_CHAIN) + _cairo_recording_surface_create_bbtree (surface); + + indices = surface->indices; + bbtree_foreach_mark_visible (&surface->bbtree, &box, &indices); + num_visible = indices - surface->indices; + if (num_visible > 1) + sort_indices (surface->indices, num_visible); + + return num_visible; +} + +static void +_cairo_recording_surface_merge_source_attributes (cairo_recording_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source) +{ + if (op != CAIRO_OPERATOR_OVER) + surface->has_only_op_over = FALSE; + + if (source->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surf_pat = (cairo_surface_pattern_t *) source; + cairo_surface_t *surf = surf_pat->surface; + cairo_surface_t *free_me = NULL; + + if (_cairo_surface_is_snapshot (surf)) + free_me = surf = _cairo_surface_snapshot_get_target (surf); + + if (unlikely (surf->status)) + // There was some kind of error and the surface could be a nil error + // surface with various "problems" (e.g. ->backend == NULL). + return; + + if (surf->type == CAIRO_SURFACE_TYPE_RECORDING) { + cairo_recording_surface_t *rec_surf = (cairo_recording_surface_t *) surf; + + if (! _cairo_recording_surface_has_only_bilevel_alpha (rec_surf)) + surface->has_bilevel_alpha = FALSE; + + if (! _cairo_recording_surface_has_only_op_over (rec_surf)) + surface->has_only_op_over = FALSE; + + } else if (surf->type == CAIRO_SURFACE_TYPE_IMAGE) { + cairo_image_surface_t *img_surf = (cairo_image_surface_t *) surf; + + if (_cairo_image_analyze_transparency (img_surf) == CAIRO_IMAGE_HAS_ALPHA) + surface->has_bilevel_alpha = FALSE; + + } else { + if (!_cairo_pattern_is_clear (source) && !_cairo_pattern_is_opaque (source, NULL)) + surface->has_bilevel_alpha = FALSE; + } + + cairo_surface_destroy (free_me); + return; + + } else if (source->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) { + cairo_surface_t *image; + cairo_surface_t *raster; + + image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 1); + raster = _cairo_raster_source_pattern_acquire (source, image, NULL); + cairo_surface_destroy (image); + if (raster) { + if (raster->type == CAIRO_SURFACE_TYPE_IMAGE) { + if (_cairo_image_analyze_transparency ((cairo_image_surface_t *)raster) == CAIRO_IMAGE_HAS_ALPHA) + surface->has_bilevel_alpha = FALSE; + } + + _cairo_raster_source_pattern_release (source, raster); + if (raster->type == CAIRO_SURFACE_TYPE_IMAGE) + return; + } + } + + if (!_cairo_pattern_is_clear (source) && !_cairo_pattern_is_opaque (source, NULL)) + surface->has_bilevel_alpha = FALSE; +} + +static cairo_status_t +_cairo_recording_surface_replay_internal (cairo_recording_surface_t *surface, + cairo_recording_surface_replay_params_t *params) +{ + cairo_surface_wrapper_t wrapper; + cairo_command_t **elements; + cairo_recording_regions_array_t *regions_array = NULL; + cairo_recording_region_element_t *region_elements = NULL; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_rectangle_int_t extents; + cairo_bool_t use_indices = FALSE; + const cairo_rectangle_int_t *r; + unsigned int i, num_elements; + + if (unlikely (surface->base.status)) + return surface->base.status; + + if (unlikely (params->target->status)) + return params->target->status; + + if (unlikely (surface->base.finished)) + return _cairo_error (CAIRO_STATUS_SURFACE_FINISHED); + + if (surface->base.is_clear) + return CAIRO_STATUS_SUCCESS; + + assert (_cairo_surface_is_recording (&surface->base)); + + if (params->regions_id != 0) { + regions_array = _cairo_recording_surface_region_array_find (surface, params->regions_id); + assert (regions_array != NULL); + } + + _cairo_surface_wrapper_init (&wrapper, params->target); + if (params->surface_extents) + _cairo_surface_wrapper_intersect_extents (&wrapper, params->surface_extents); + r = &_cairo_unbounded_rectangle; + if (! surface->unbounded && !params->surface_is_unbounded) { + _cairo_surface_wrapper_intersect_extents (&wrapper, &surface->extents); + r = &surface->extents; + } + _cairo_surface_wrapper_set_inverse_transform (&wrapper, params->surface_transform); + _cairo_surface_wrapper_set_clip (&wrapper, params->target_clip); + + if (params->foreground_color) { + params->target->foreground_source = _cairo_pattern_create_solid (params->foreground_color); + params->target->foreground_used = FALSE; + } + + /* Compute the extents of the target clip in recorded device space */ + if (! _cairo_surface_wrapper_get_target_extents (&wrapper, params->surface_is_unbounded, &extents)) + goto done; + + surface->has_bilevel_alpha = TRUE; + surface->has_only_op_over = TRUE; + + num_elements = surface->commands.num_elements; + if (regions_array) { + if (params->type == CAIRO_RECORDING_CREATE_REGIONS) { + /* Re-running create regions with the same region id is not supported. */ + assert (_cairo_array_num_elements (®ions_array->regions) == 0); + void *array_elems; + status = _cairo_array_allocate (®ions_array->regions, num_elements, &array_elems); + if (unlikely (status)) + return status; + + /* Set regions to CAIRO_RECORDING_REGION_ALL and ids to 0 */ + memset (array_elems, 0, num_elements * sizeof (cairo_recording_region_element_t)); + } else { + assert (_cairo_array_num_elements (®ions_array->regions) == num_elements); + } + } + + elements = _cairo_array_index (&surface->commands, 0); + if (regions_array) + region_elements = _cairo_array_index (®ions_array->regions, 0); + + if (!params->replay_all && (extents.width < r->width || extents.height < r->height)) { + num_elements = + _cairo_recording_surface_get_visible_commands (surface, &extents); + use_indices = num_elements != surface->commands.num_elements; + } + + cairo_bool_t target_is_analysis = _cairo_surface_is_analysis (params->target); + + for (i = 0; i < num_elements; i++) { + cairo_command_t *command = elements[use_indices ? surface->indices[i] : i]; + cairo_recording_region_element_t *region_element = NULL; + unsigned int source_region_id = 0; + unsigned int mask_region_id = 0; + + if (region_elements) + region_element = ®ion_elements[use_indices ? surface->indices[i] : i]; + + if (region_element && params->type == CAIRO_RECORDING_REPLAY_REGION && + region_element->region != params->region) + { + continue; + } + + if (! _cairo_rectangle_intersects (&extents, &command->header.extents)) { + if (command->header.type != CAIRO_COMMAND_TAG) + continue; + } + + + if (params->target->backend->command_id) { + status = params->target->backend->command_id (params->target, params->regions_id, i); + if (unlikely (status)) + return status; + } + + switch (command->header.type) { + case CAIRO_COMMAND_PAINT: + if (region_element) + source_region_id = region_element->source_id; + + status = _cairo_surface_wrapper_paint (&wrapper, + command->header.op, + &command->paint.source.base, + source_region_id, + command->header.clip); + if (params->type == CAIRO_RECORDING_CREATE_REGIONS) { + _cairo_recording_surface_merge_source_attributes (surface, + command->header.op, + &command->paint.source.base); + if (region_element && target_is_analysis) + region_element->source_id = _cairo_analysis_surface_get_source_region_id (params->target); + } + break; + + case CAIRO_COMMAND_MASK: + if (region_element) { + source_region_id = region_element->source_id; + mask_region_id = region_element->mask_id; + } + + status = _cairo_surface_wrapper_mask (&wrapper, + command->header.op, + &command->mask.source.base, + source_region_id, + &command->mask.mask.base, + mask_region_id, + command->header.clip); + if (params->type == CAIRO_RECORDING_CREATE_REGIONS) { + _cairo_recording_surface_merge_source_attributes (surface, + command->header.op, + &command->mask.source.base); + _cairo_recording_surface_merge_source_attributes (surface, + command->header.op, + &command->mask.mask.base); + if (region_element && target_is_analysis) { + region_element->source_id = _cairo_analysis_surface_get_source_region_id (params->target); + region_element->mask_id = _cairo_analysis_surface_get_mask_region_id (params->target); + } + } + break; + + case CAIRO_COMMAND_STROKE: + if (region_element) + source_region_id = region_element->source_id; + + status = _cairo_surface_wrapper_stroke (&wrapper, + command->header.op, + &command->stroke.source.base, + source_region_id, + &command->stroke.path, + &command->stroke.style, + &command->stroke.ctm, + &command->stroke.ctm_inverse, + command->stroke.tolerance, + command->stroke.antialias, + command->header.clip); + if (params->type == CAIRO_RECORDING_CREATE_REGIONS) { + _cairo_recording_surface_merge_source_attributes (surface, + command->header.op, + &command->stroke.source.base); + if (region_element && target_is_analysis) + region_element->source_id = _cairo_analysis_surface_get_source_region_id (params->target); + } + break; + + case CAIRO_COMMAND_FILL: + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (region_element) + source_region_id = region_element->source_id; + + if (_cairo_surface_wrapper_has_fill_stroke (&wrapper)) { + cairo_command_t *stroke_command = NULL; + cairo_recording_region_element_t *stroke_region_element = NULL; + unsigned stroke_region_id = 0; + + /* The analysis surface does not implement + * fill_stroke. When creating regions the fill and + * stroke commands are tested separately. + */ + if (params->type != CAIRO_RECORDING_CREATE_REGIONS && i < num_elements - 1) { + stroke_command = elements[i + 1]; + if (region_elements) + stroke_region_element = ®ion_elements[i + 1]; + } + + if (stroke_region_element) + stroke_region_id = stroke_region_element->source_id; + + if (stroke_command && stroke_region_element && + params->type == CAIRO_RECORDING_REPLAY_REGION && + params->region != CAIRO_RECORDING_REGION_ALL) + { + if (stroke_region_element->region != params->region) + stroke_command = NULL; + } + + if (stroke_command != NULL && + stroke_command->header.type == CAIRO_COMMAND_STROKE && + _cairo_path_fixed_equal (&command->fill.path, + &stroke_command->stroke.path) && + _cairo_clip_equal (command->header.clip, + stroke_command->header.clip)) + { + status = _cairo_surface_wrapper_fill_stroke (&wrapper, + command->header.op, + &command->fill.source.base, + source_region_id, + command->fill.fill_rule, + command->fill.tolerance, + command->fill.antialias, + &command->fill.path, + stroke_command->header.op, + &stroke_command->stroke.source.base, + stroke_region_id, + &stroke_command->stroke.style, + &stroke_command->stroke.ctm, + &stroke_command->stroke.ctm_inverse, + stroke_command->stroke.tolerance, + stroke_command->stroke.antialias, + command->header.clip); + if (params->type == CAIRO_RECORDING_CREATE_REGIONS) { + _cairo_recording_surface_merge_source_attributes (surface, + command->header.op, + &command->fill.source.base); + _cairo_recording_surface_merge_source_attributes (surface, + command->header.op, + &command->stroke.source.base); + } + i++; + } + } + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + status = _cairo_surface_wrapper_fill (&wrapper, + command->header.op, + &command->fill.source.base, + source_region_id, + &command->fill.path, + command->fill.fill_rule, + command->fill.tolerance, + command->fill.antialias, + command->header.clip); + if (params->type == CAIRO_RECORDING_CREATE_REGIONS) { + _cairo_recording_surface_merge_source_attributes (surface, + command->header.op, + &command->fill.source.base); + if (region_element && target_is_analysis) + region_element->source_id = _cairo_analysis_surface_get_source_region_id (params->target); + } + } + break; + + case CAIRO_COMMAND_SHOW_TEXT_GLYPHS: + if (region_element) + source_region_id = region_element->source_id; + + status = _cairo_surface_wrapper_show_text_glyphs (&wrapper, + command->header.op, + &command->show_text_glyphs.source.base, + source_region_id, + command->show_text_glyphs.utf8, command->show_text_glyphs.utf8_len, + command->show_text_glyphs.glyphs, command->show_text_glyphs.num_glyphs, + command->show_text_glyphs.clusters, command->show_text_glyphs.num_clusters, + command->show_text_glyphs.cluster_flags, + command->show_text_glyphs.scaled_font, + command->header.clip); + if (params->type == CAIRO_RECORDING_CREATE_REGIONS) { + _cairo_recording_surface_merge_source_attributes (surface, + command->header.op, + &command->show_text_glyphs.source.base); + if (region_element && target_is_analysis) + region_element->source_id = _cairo_analysis_surface_get_source_region_id (params->target); + + } + break; + + case CAIRO_COMMAND_TAG: + status = _cairo_surface_wrapper_tag (&wrapper, + command->tag.begin, + command->tag.tag_name, + command->tag.attributes); + break; + + default: + ASSERT_NOT_REACHED; + } + + /* It's possible that a degenerate clip caused the command to end up doing nothing when replayed. */ + if (unlikely (status == CAIRO_INT_STATUS_NOTHING_TO_DO)) + status = CAIRO_INT_STATUS_SUCCESS; + + if (params->type == CAIRO_RECORDING_CREATE_REGIONS && region_element) { + if (status == CAIRO_INT_STATUS_SUCCESS) { + region_element->region = CAIRO_RECORDING_REGION_NATIVE; + } else if (status == CAIRO_INT_STATUS_IMAGE_FALLBACK) { + region_element->region = CAIRO_RECORDING_REGION_IMAGE_FALLBACK; + status = CAIRO_INT_STATUS_SUCCESS; + } else { + assert (_cairo_int_status_is_error (status)); + } + } + + if (unlikely (status)) + break; + } + +done: + if (params->foreground_color) { + cairo_pattern_destroy (params->target->foreground_source); + params->target->foreground_source = NULL; + params->foreground_used = params->target->foreground_used; + } + + _cairo_surface_wrapper_fini (&wrapper); + return _cairo_surface_set_error (&surface->base, status); +} + +cairo_status_t +_cairo_recording_surface_replay_one (cairo_recording_surface_t *surface, + long unsigned index, + cairo_surface_t *target) +{ + cairo_surface_wrapper_t wrapper; + cairo_command_t **elements, *command; + cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS; + + if (unlikely (surface->base.status)) + return surface->base.status; + + if (unlikely (target->status)) + return target->status; + + if (unlikely (surface->base.finished)) + return _cairo_error (CAIRO_STATUS_SURFACE_FINISHED); + + assert (_cairo_surface_is_recording (&surface->base)); + + /* XXX + * Use a surface wrapper because we may want to do transformed + * replay in the future. + */ + _cairo_surface_wrapper_init (&wrapper, target); + + if (index > surface->commands.num_elements) + return _cairo_error (CAIRO_STATUS_READ_ERROR); + + elements = _cairo_array_index (&surface->commands, 0); + command = elements[index]; + switch (command->header.type) { + case CAIRO_COMMAND_PAINT: + status = _cairo_surface_wrapper_paint (&wrapper, + command->header.op, + &command->paint.source.base, + 0, + command->header.clip); + break; + + case CAIRO_COMMAND_MASK: + status = _cairo_surface_wrapper_mask (&wrapper, + command->header.op, + &command->mask.source.base, + 0, + &command->mask.mask.base, + 0, + command->header.clip); + break; + + case CAIRO_COMMAND_STROKE: + status = _cairo_surface_wrapper_stroke (&wrapper, + command->header.op, + &command->stroke.source.base, + 0, + &command->stroke.path, + &command->stroke.style, + &command->stroke.ctm, + &command->stroke.ctm_inverse, + command->stroke.tolerance, + command->stroke.antialias, + command->header.clip); + break; + + case CAIRO_COMMAND_FILL: + status = _cairo_surface_wrapper_fill (&wrapper, + command->header.op, + &command->fill.source.base, + 0, + &command->fill.path, + command->fill.fill_rule, + command->fill.tolerance, + command->fill.antialias, + command->header.clip); + break; + + case CAIRO_COMMAND_SHOW_TEXT_GLYPHS: + status = _cairo_surface_wrapper_show_text_glyphs (&wrapper, + command->header.op, + &command->show_text_glyphs.source.base, + 0, + command->show_text_glyphs.utf8, command->show_text_glyphs.utf8_len, + command->show_text_glyphs.glyphs, command->show_text_glyphs.num_glyphs, + command->show_text_glyphs.clusters, command->show_text_glyphs.num_clusters, + command->show_text_glyphs.cluster_flags, + command->show_text_glyphs.scaled_font, + command->header.clip); + break; + + case CAIRO_COMMAND_TAG: + status = _cairo_surface_wrapper_tag (&wrapper, + command->tag.begin, + command->tag.tag_name, + command->tag.attributes); + break; + + default: + ASSERT_NOT_REACHED; + } + + _cairo_surface_wrapper_fini (&wrapper); + return _cairo_surface_set_error (&surface->base, status); +} +/** + * _cairo_recording_surface_replay: + * @surface: the #cairo_recording_surface_t + * @target: a target #cairo_surface_t onto which to replay the operations + * @width_pixels: width of the surface, in pixels + * @height_pixels: height of the surface, in pixels + * + * A recording surface can be "replayed" against any target surface, + * after which the results in target will be identical to the results + * that would have been obtained if the original operations applied to + * the recording surface had instead been applied to the target surface. + **/ +cairo_status_t +_cairo_recording_surface_replay (cairo_surface_t *surface, + cairo_surface_t *target) +{ + cairo_recording_surface_replay_params_t params; + + params.surface_extents = NULL; + params.surface_transform = NULL; + params.target = target; + params.target_clip = NULL; + params.surface_is_unbounded = FALSE; + params.type = CAIRO_RECORDING_REPLAY; + params.region = CAIRO_RECORDING_REGION_ALL; + params.regions_id = 0; + params.foreground_color = NULL; + params.replay_all = FALSE; + + return _cairo_recording_surface_replay_internal ((cairo_recording_surface_t *) surface, ¶ms); +} + +cairo_status_t +_cairo_recording_surface_replay_with_foreground_color (cairo_surface_t *surface, + cairo_surface_t *target, + const cairo_color_t *foreground_color, + cairo_bool_t *foreground_used) +{ + cairo_recording_surface_replay_params_t params; + cairo_status_t status; + + params.surface_extents = NULL; + params.surface_transform = NULL; + params.target = target; + params.target_clip = NULL; + params.surface_is_unbounded = FALSE; + params.type = CAIRO_RECORDING_REPLAY; + params.region = CAIRO_RECORDING_REGION_ALL; + params.regions_id = 0; + params.foreground_color = foreground_color; + params.foreground_used = FALSE; + params.replay_all = FALSE; + + status = _cairo_recording_surface_replay_internal ((cairo_recording_surface_t *) surface, ¶ms); + *foreground_used = params.foreground_used; + + return status; +} + +cairo_status_t +_cairo_recording_surface_replay_with_transform (cairo_surface_t *surface, + const cairo_matrix_t *surface_transform, + cairo_surface_t *target, + cairo_bool_t surface_is_unbounded, + cairo_bool_t replay_all) +{ + cairo_recording_surface_replay_params_t params; + + params.surface_extents = NULL; + params.surface_transform = surface_transform; + params.target = target; + params.target_clip = NULL; + params.surface_is_unbounded = surface_is_unbounded; + params.type = CAIRO_RECORDING_REPLAY; + params.region = CAIRO_RECORDING_REGION_ALL; + params.regions_id = 0; + params.foreground_color = NULL; + params.replay_all = replay_all; + + return _cairo_recording_surface_replay_internal ((cairo_recording_surface_t *) surface, ¶ms); +} + +cairo_status_t +_cairo_recording_surface_replay_with_clip (cairo_surface_t *surface, + const cairo_matrix_t *surface_transform, + cairo_surface_t *target, + const cairo_clip_t *target_clip) +{ + cairo_recording_surface_replay_params_t params; + + params.surface_extents = NULL; + params.surface_transform = surface_transform; + params.target = target; + params.target_clip = target_clip; + params.surface_is_unbounded = FALSE; + params.type = CAIRO_RECORDING_REPLAY; + params.region = CAIRO_RECORDING_REGION_ALL; + params.regions_id = 0; + params.foreground_color = NULL; + params.replay_all = FALSE; + + return _cairo_recording_surface_replay_internal ((cairo_recording_surface_t *) surface, ¶ms); +} + +/* Replay recording to surface. When the return status of each operation is + * one of %CAIRO_STATUS_SUCCESS, %CAIRO_INT_STATUS_UNSUPPORTED, or + * %CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY the status of each operation + * will be stored in the recording surface. Any other status will abort the + * replay and return the status. + */ +cairo_status_t +_cairo_recording_surface_replay_and_create_regions (cairo_surface_t *surface, + unsigned int regions_id, + const cairo_matrix_t *surface_transform, + cairo_surface_t *target, + cairo_bool_t surface_is_unbounded, + cairo_bool_t replay_all) +{ + cairo_recording_surface_replay_params_t params; + + params.surface_extents = NULL; + params.surface_transform = surface_transform; + params.target = target; + params.target_clip = NULL; + params.surface_is_unbounded = surface_is_unbounded; + params.type = CAIRO_RECORDING_CREATE_REGIONS; + params.region = CAIRO_RECORDING_REGION_ALL; + params.regions_id = regions_id; + params.foreground_color = NULL; + params.replay_all = replay_all; + + return _cairo_recording_surface_replay_internal ((cairo_recording_surface_t *) surface, ¶ms); +} + +cairo_status_t +_cairo_recording_surface_replay_region (cairo_surface_t *surface, + unsigned int regions_id, + const cairo_rectangle_int_t *surface_extents, + cairo_surface_t *target, + cairo_recording_region_type_t region) +{ + cairo_recording_surface_replay_params_t params; + + params.surface_extents = surface_extents; + params.surface_transform = NULL; + params.target = target; + params.target_clip = NULL; + params.surface_is_unbounded = FALSE; + params.type = CAIRO_RECORDING_REPLAY_REGION; + params.region = region; + params.regions_id = regions_id; + params.foreground_color = NULL; + params.replay_all = FALSE; + + return _cairo_recording_surface_replay_internal ((cairo_recording_surface_t *) surface, ¶ms); +} + +static cairo_status_t +_recording_surface_get_ink_bbox (cairo_recording_surface_t *surface, + cairo_box_t *bbox, + const cairo_matrix_t *transform) +{ + cairo_surface_t *null_surface; + cairo_surface_t *analysis_surface; + cairo_status_t status; + + null_surface = _cairo_null_surface_create (surface->base.content); + analysis_surface = _cairo_analysis_surface_create (null_surface, FALSE); + cairo_surface_destroy (null_surface); + + status = analysis_surface->status; + if (unlikely (status)) + return status; + + if (transform != NULL) + _cairo_analysis_surface_set_ctm (analysis_surface, transform); + + status = _cairo_recording_surface_replay (&surface->base, analysis_surface); + _cairo_analysis_surface_get_bounding_box (analysis_surface, bbox); + cairo_surface_destroy (analysis_surface); + + return status; +} + +/** + * cairo_recording_surface_ink_extents: + * @surface: a #cairo_recording_surface_t + * @x0: the x-coordinate of the top-left of the ink bounding box + * @y0: the y-coordinate of the top-left of the ink bounding box + * @width: the width of the ink bounding box + * @height: the height of the ink bounding box + * + * Measures the extents of the operations stored within the recording-surface. + * This is useful to compute the required size of an image surface (or + * equivalent) into which to replay the full sequence of drawing operations. + * + * Since: 1.10 + **/ +void +cairo_recording_surface_ink_extents (cairo_surface_t *surface, + double *x0, + double *y0, + double *width, + double *height) +{ + cairo_status_t status; + cairo_box_t bbox; + + memset (&bbox, 0, sizeof (bbox)); + + if (surface->status || ! _cairo_surface_is_recording (surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + goto DONE; + } + + status = _recording_surface_get_ink_bbox ((cairo_recording_surface_t *) surface, + &bbox, + NULL); + if (unlikely (status)) + status = _cairo_surface_set_error (surface, status); + +DONE: + if (x0) + *x0 = _cairo_fixed_to_double (bbox.p1.x); + if (y0) + *y0 = _cairo_fixed_to_double (bbox.p1.y); + if (width) + *width = _cairo_fixed_to_double (bbox.p2.x - bbox.p1.x); + if (height) + *height = _cairo_fixed_to_double (bbox.p2.y - bbox.p1.y); +} + +cairo_status_t +_cairo_recording_surface_get_bbox (cairo_recording_surface_t *surface, + cairo_box_t *bbox, + const cairo_matrix_t *transform) +{ + if (! surface->unbounded) { + _cairo_box_from_rectangle (bbox, &surface->extents); + if (transform != NULL) + _cairo_matrix_transform_bounding_box_fixed (transform, bbox, NULL); + + return CAIRO_STATUS_SUCCESS; + } + + return _recording_surface_get_ink_bbox (surface, bbox, transform); +} + +cairo_status_t +_cairo_recording_surface_get_ink_bbox (cairo_recording_surface_t *surface, + cairo_box_t *bbox, + const cairo_matrix_t *transform) +{ + return _recording_surface_get_ink_bbox (surface, bbox, transform); +} + +/** + * cairo_recording_surface_get_extents: + * @surface: a #cairo_recording_surface_t + * @extents: the #cairo_rectangle_t to be assigned the extents + * + * Get the extents of the recording-surface. + * + * Return value: %TRUE if the surface is bounded, of recording type, and + * not in an error state, otherwise %FALSE + * + * Since: 1.12 + **/ +cairo_bool_t +cairo_recording_surface_get_extents (cairo_surface_t *surface, + cairo_rectangle_t *extents) +{ + cairo_recording_surface_t *record; + + if (surface->status || ! _cairo_surface_is_recording (surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return FALSE; + } + + record = (cairo_recording_surface_t *)surface; + if (record->unbounded) + return FALSE; + + *extents = record->extents_pixels; + return TRUE; +} + +cairo_bool_t +_cairo_recording_surface_has_only_bilevel_alpha (cairo_recording_surface_t *surface) +{ + return surface->has_bilevel_alpha; +} + +cairo_bool_t +_cairo_recording_surface_has_only_op_over (cairo_recording_surface_t *surface) +{ + return surface->has_only_op_over; +} + +cairo_bool_t +_cairo_recording_surface_has_tags (cairo_surface_t *surface) +{ + cairo_recording_surface_t *record; + + if (surface->status || ! _cairo_surface_is_recording (surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return FALSE; + } + + record = (cairo_recording_surface_t *)surface; + + return record->has_tags; +} + +static void +print_indent (FILE *file, int indent) +{ + fprintf (file, "%*s", indent * 2, ""); +} + +static void +print_pattern (FILE *file, + const cairo_pattern_t *pattern, + unsigned int region_id, + int indent, + cairo_bool_t recurse) +{ + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: { + cairo_solid_pattern_t *p = (cairo_solid_pattern_t *) pattern; + if (pattern->is_foreground_marker) { + fprintf (file, "solid foreground\n"); + } else { + fprintf (file, "solid rgba: %f %f %f %f\n", + p->color.red, + p->color.green, + p->color.blue, + p->color.alpha); + } + } break; + case CAIRO_PATTERN_TYPE_SURFACE: { + cairo_surface_pattern_t *p = (cairo_surface_pattern_t *) pattern; + fprintf (file, "surface "); + if (p->surface->type == CAIRO_SURFACE_TYPE_RECORDING) { + fprintf (file, "recording id: %d\n", p->surface->unique_id); + if (recurse) { + _cairo_debug_print_recording_surface (file, p->surface, + region_id, + indent + 1, recurse); + } + } else if (p->surface->type == CAIRO_SURFACE_TYPE_IMAGE) { + cairo_image_surface_t *image = (cairo_image_surface_t *)p->surface; + fprintf (file, "image format: "); + switch (image->format) { + case CAIRO_FORMAT_INVALID: fputs ("INVALID", file); break; + case CAIRO_FORMAT_ARGB32: fputs ("ARGB32", file); break; + case CAIRO_FORMAT_RGB24: fputs ("RGB24", file); break; + case CAIRO_FORMAT_A8: fputs ("A8", file); break; + case CAIRO_FORMAT_A1: fputs ("A1", file); break; + case CAIRO_FORMAT_RGB16_565: fputs ("RGB16_565", file); break; + case CAIRO_FORMAT_RGB30: fputs ("RGB30", file); break; + case CAIRO_FORMAT_RGB96F: fputs ("RGB96F", file); break; + case CAIRO_FORMAT_RGBA128F: fputs ("RGBA128F", file); break; + } + fprintf (file, " width: %d height: %d\n", image->width, image->height); + } else { + fprintf (file, "type %d\n", p->surface->type); + } + } break; + case CAIRO_PATTERN_TYPE_LINEAR: + fprintf (file, "linear\n"); + break; + case CAIRO_PATTERN_TYPE_RADIAL: + fprintf (file, "radial\n"); + break; + case CAIRO_PATTERN_TYPE_MESH: + fprintf (file, "mesh\n"); + break; + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + fprintf (file, "raster\n"); + break; + } +} + +void +_cairo_debug_print_recording_surface (FILE *file, + cairo_surface_t *surface, + unsigned int regions_id, + int indent, + cairo_bool_t recurse) +{ + cairo_command_t **elements; + cairo_recording_region_element_t *region_elements = NULL; + unsigned int i, num_elements; + cairo_recording_surface_t *recording_surface; + cairo_surface_t *free_me = NULL; + char common[100]; + + if (_cairo_surface_is_snapshot (surface)) + free_me = surface = _cairo_surface_snapshot_get_target (surface); + + assert (_cairo_surface_is_recording (surface)); + recording_surface = (cairo_recording_surface_t *)surface; + + print_indent (file, indent); + indent++; + fprintf(file, "recording surface id: %d regions id: %d\n", recording_surface->base.unique_id, regions_id); + num_elements = recording_surface->commands.num_elements; + elements = _cairo_array_index (&recording_surface->commands, 0); + + if (regions_id != 0) { + cairo_recording_regions_array_t *regions_array; + regions_array = _cairo_recording_surface_region_array_find (recording_surface, regions_id); + assert (regions_array != NULL); + assert (_cairo_array_num_elements (®ions_array->regions) == num_elements); + region_elements = _cairo_array_index (®ions_array->regions, 0); + } + + for (i = 0; i < num_elements; i++) { + cairo_command_t *command = elements[i]; + unsigned int source_region_id = 0; + unsigned int mask_region_id = 0; + + common[0] = 0; + if (region_elements) { + cairo_recording_region_element_t *region_element = ®ion_elements[i]; + strcpy (common, "region: "); + switch (region_element->region) { + case CAIRO_RECORDING_REGION_ALL: strcat (common, "all"); break; + case CAIRO_RECORDING_REGION_NATIVE: strcat (common, "native"); break; + case CAIRO_RECORDING_REGION_IMAGE_FALLBACK: strcat (common, "fallback"); break; + } + source_region_id = region_element->source_id; + mask_region_id = region_element->mask_id; + } + sprintf (common + strlen(common), " op: %s", _cairo_debug_operator_to_string (command->header.op)); + + switch (command->header.type) { + case CAIRO_COMMAND_PAINT: + print_indent (file, indent); + fprintf(file, "%d PAINT %s source: ", i, common); + print_pattern (file, &command->paint.source.base, source_region_id, indent + 1, recurse); + break; + + case CAIRO_COMMAND_MASK: + print_indent (file, indent); + fprintf(file, "%d MASK %s\n", i, common); + print_indent (file, indent + 1); + fprintf(file, "source: "); + print_pattern (file, &command->mask.source.base, source_region_id, indent + 1, recurse); + print_indent (file, indent + 1); + fprintf(file, "mask: "); + print_pattern (file, &command->mask.mask.base, mask_region_id, indent + 1, recurse); + break; + + case CAIRO_COMMAND_STROKE: + print_indent (file, indent); + fprintf(file, "%d STROKE %s source:", i, common); + print_pattern (file, &command->stroke.source.base, source_region_id, indent + 1, recurse); + break; + + case CAIRO_COMMAND_FILL: + print_indent (file, indent); + fprintf(file, "%d FILL %s source: ", i, common); + print_pattern (file, &command->fill.source.base, source_region_id, indent + 1, recurse); + break; + + case CAIRO_COMMAND_SHOW_TEXT_GLYPHS: + print_indent (file, indent); + fprintf(file, "%d SHOW_TEXT_GLYPHS %s font_type: ", i, common); + switch (command->show_text_glyphs.scaled_font->backend->type) { + case CAIRO_FONT_TYPE_TOY: fputs ("toy", file); break; + case CAIRO_FONT_TYPE_FT: fputs ("ft", file); break; + case CAIRO_FONT_TYPE_WIN32: fputs ("win32", file); break; + case CAIRO_FONT_TYPE_QUARTZ: fputs ("quartz", file); break; + case CAIRO_FONT_TYPE_USER: fputs ("user", file); break; + case CAIRO_FONT_TYPE_DWRITE: fputs ("dwrite", file); break; + } + fprintf (file, " glyphs:"); + for (unsigned j = 0; j < command->show_text_glyphs.num_glyphs; j++) + fprintf (file, " %ld", command->show_text_glyphs.glyphs[j].index); + fprintf (file, " source:"); + print_pattern (file, &command->show_text_glyphs.source.base, source_region_id, indent + 1, recurse); + break; + + case CAIRO_COMMAND_TAG: + print_indent (file, indent); + fprintf(file, "%d %s %s '%s'\n", + i, + command->tag.begin ? "BEGIN TAG" : "END TAG", + command->tag.tag_name, command->tag.attributes); + break; + + default: + ASSERT_NOT_REACHED; + } + } + cairo_surface_destroy (free_me); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-rectangle.c b/local/recipes/libs/cairo/source/src/cairo-rectangle.c new file mode 100644 index 0000000000..2d51d7b10a --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-rectangle.c @@ -0,0 +1,299 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2006 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" + +#include "cairo-box-inline.h" + +const cairo_rectangle_int_t _cairo_empty_rectangle = { 0, 0, 0, 0 }; +const cairo_rectangle_int_t _cairo_unbounded_rectangle = { + CAIRO_RECT_INT_MIN, CAIRO_RECT_INT_MIN, + CAIRO_RECT_INT_MAX - CAIRO_RECT_INT_MIN, + CAIRO_RECT_INT_MAX - CAIRO_RECT_INT_MIN, +}; + +cairo_private void +_cairo_box_from_doubles (cairo_box_t *box, + double *x1, double *y1, + double *x2, double *y2) +{ + box->p1.x = _cairo_fixed_from_double (*x1); + box->p1.y = _cairo_fixed_from_double (*y1); + box->p2.x = _cairo_fixed_from_double (*x2); + box->p2.y = _cairo_fixed_from_double (*y2); +} + +cairo_private void +_cairo_box_to_doubles (const cairo_box_t *box, + double *x1, double *y1, + double *x2, double *y2) +{ + *x1 = _cairo_fixed_to_double (box->p1.x); + *y1 = _cairo_fixed_to_double (box->p1.y); + *x2 = _cairo_fixed_to_double (box->p2.x); + *y2 = _cairo_fixed_to_double (box->p2.y); +} + +void +_cairo_box_from_rectangle (cairo_box_t *box, + const cairo_rectangle_int_t *rect) +{ + box->p1.x = _cairo_fixed_from_int (rect->x); + box->p1.y = _cairo_fixed_from_int (rect->y); + box->p2.x = _cairo_fixed_from_int (rect->x + rect->width); + box->p2.y = _cairo_fixed_from_int (rect->y + rect->height); +} + +void +_cairo_boxes_get_extents (const cairo_box_t *boxes, + int num_boxes, + cairo_box_t *extents) +{ + assert (num_boxes > 0); + *extents = *boxes; + while (--num_boxes) + _cairo_box_add_box (extents, ++boxes); +} + +/* XXX We currently have a confusing mix of boxes and rectangles as + * exemplified by this function. A #cairo_box_t is a rectangular area + * represented by the coordinates of the upper left and lower right + * corners, expressed in fixed point numbers. A #cairo_rectangle_int_t is + * also a rectangular area, but represented by the upper left corner + * and the width and the height, as integer numbers. + * + * This function converts a #cairo_box_t to a #cairo_rectangle_int_t by + * increasing the area to the nearest integer coordinates. We should + * standardize on #cairo_rectangle_fixed_t and #cairo_rectangle_int_t, and + * this function could be renamed to the more reasonable + * _cairo_rectangle_fixed_round. + */ + +void +_cairo_box_round_to_rectangle (const cairo_box_t *box, + cairo_rectangle_int_t *rectangle) +{ + rectangle->x = _cairo_fixed_integer_floor (box->p1.x); + rectangle->y = _cairo_fixed_integer_floor (box->p1.y); + rectangle->width = _cairo_fixed_integer_ceil (box->p2.x) - rectangle->x; + rectangle->height = _cairo_fixed_integer_ceil (box->p2.y) - rectangle->y; +} + +cairo_bool_t +_cairo_rectangle_intersect (cairo_rectangle_int_t *dst, + const cairo_rectangle_int_t *src) +{ + int x1, y1, x2, y2; + + x1 = MAX (dst->x, src->x); + y1 = MAX (dst->y, src->y); + /* Beware the unsigned promotion, fortunately we have bits to spare + * as (CAIRO_RECT_INT_MAX - CAIRO_RECT_INT_MIN) < UINT_MAX + */ + x2 = MIN (dst->x + (int) dst->width, src->x + (int) src->width); + y2 = MIN (dst->y + (int) dst->height, src->y + (int) src->height); + + if (x1 >= x2 || y1 >= y2) { + dst->x = 0; + dst->y = 0; + dst->width = 0; + dst->height = 0; + + return FALSE; + } else { + dst->x = x1; + dst->y = y1; + dst->width = x2 - x1; + dst->height = y2 - y1; + + return TRUE; + } +} + +/* Extends the dst rectangle to also contain src. + * If one of the rectangles is empty, the result is undefined + */ +void +_cairo_rectangle_union (cairo_rectangle_int_t *dst, + const cairo_rectangle_int_t *src) +{ + int x1, y1, x2, y2; + + x1 = MIN (dst->x, src->x); + y1 = MIN (dst->y, src->y); + /* Beware the unsigned promotion, fortunately we have bits to spare + * as (CAIRO_RECT_INT_MAX - CAIRO_RECT_INT_MIN) < UINT_MAX + */ + x2 = MAX (dst->x + (int) dst->width, src->x + (int) src->width); + y2 = MAX (dst->y + (int) dst->height, src->y + (int) src->height); + + dst->x = x1; + dst->y = y1; + dst->width = x2 - x1; + dst->height = y2 - y1; +} + +#define P1x (line->p1.x) +#define P1y (line->p1.y) +#define P2x (line->p2.x) +#define P2y (line->p2.y) +#define B1x (box->p1.x) +#define B1y (box->p1.y) +#define B2x (box->p2.x) +#define B2y (box->p2.y) + +/* + * Check whether any part of line intersects box. This function essentially + * computes whether the ray starting at line->p1 in the direction of line->p2 + * intersects the box before it reaches p2. Normally, this is done + * by dividing by the lengths of the line projected onto each axis. Because + * we're in fixed point, this function does a bit more work to avoid having to + * do the division -- we don't care about the actual intersection point, so + * it's of no interest to us. + */ + +cairo_bool_t +_cairo_box_intersects_line_segment (const cairo_box_t *box, cairo_line_t *line) +{ + cairo_fixed_t t1=0, t2=0, t3=0, t4=0; + cairo_int64_t t1y, t2y, t3x, t4x; + + cairo_fixed_t xlen, ylen; + + if (_cairo_box_contains_point (box, &line->p1) || + _cairo_box_contains_point (box, &line->p2)) + return TRUE; + + xlen = P2x - P1x; + ylen = P2y - P1y; + + if (xlen) { + if (xlen > 0) { + t1 = B1x - P1x; + t2 = B2x - P1x; + } else { + t1 = P1x - B2x; + t2 = P1x - B1x; + xlen = - xlen; + } + + if ((t1 < 0 || t1 > xlen) && + (t2 < 0 || t2 > xlen)) + return FALSE; + } else { + /* Fully vertical line -- check that X is in bounds */ + if (P1x < B1x || P1x > B2x) + return FALSE; + } + + if (ylen) { + if (ylen > 0) { + t3 = B1y - P1y; + t4 = B2y - P1y; + } else { + t3 = P1y - B2y; + t4 = P1y - B1y; + ylen = - ylen; + } + + if ((t3 < 0 || t3 > ylen) && + (t4 < 0 || t4 > ylen)) + return FALSE; + } else { + /* Fully horizontal line -- check Y */ + if (P1y < B1y || P1y > B2y) + return FALSE; + } + + /* If we had a horizontal or vertical line, then it's already been checked */ + if (P1x == P2x || P1y == P2y) + return TRUE; + + /* Check overlap. Note that t1 < t2 and t3 < t4 here. */ + t1y = _cairo_int32x32_64_mul (t1, ylen); + t2y = _cairo_int32x32_64_mul (t2, ylen); + t3x = _cairo_int32x32_64_mul (t3, xlen); + t4x = _cairo_int32x32_64_mul (t4, xlen); + + if (_cairo_int64_lt(t1y, t4x) && + _cairo_int64_lt(t3x, t2y)) + return TRUE; + + return FALSE; +} + +static cairo_status_t +_cairo_box_add_spline_point (void *closure, + const cairo_point_t *point, + const cairo_slope_t *tangent) +{ + _cairo_box_add_point (closure, point); + + return CAIRO_STATUS_SUCCESS; +} + +/* assumes a has been previously added */ +void +_cairo_box_add_curve_to (cairo_box_t *extents, + const cairo_point_t *a, + const cairo_point_t *b, + const cairo_point_t *c, + const cairo_point_t *d) +{ + _cairo_box_add_point (extents, d); + if (!_cairo_box_contains_point (extents, b) || + !_cairo_box_contains_point (extents, c)) + { + cairo_status_t status; + + status = _cairo_spline_bound (_cairo_box_add_spline_point, + extents, a, b, c, d); + assert (status == CAIRO_STATUS_SUCCESS); + } +} + +void +_cairo_rectangle_int_from_double (cairo_rectangle_int_t *recti, + const cairo_rectangle_t *rectf) +{ + recti->x = floor (rectf->x); + recti->y = floor (rectf->y); + recti->width = ceil (rectf->x + rectf->width) - floor (rectf->x); + recti->height = ceil (rectf->y + rectf->height) - floor (rectf->y); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-rectangular-scan-converter.c b/local/recipes/libs/cairo/source/src/cairo-rectangular-scan-converter.c new file mode 100644 index 0000000000..e353b34e85 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-rectangular-scan-converter.c @@ -0,0 +1,791 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-combsort-inline.h" +#include "cairo-error-private.h" +#include "cairo-freelist-private.h" +#include "cairo-list-private.h" +#include "cairo-spans-private.h" + +#include + +typedef struct _rectangle { + struct _rectangle *next, *prev; + cairo_fixed_t left, right; + cairo_fixed_t top, bottom; + int32_t top_y, bottom_y; + int dir; +} rectangle_t; + +#define UNROLL3(x) x x x + +/* the parent is always given by index/2 */ +#define PQ_PARENT_INDEX(i) ((i) >> 1) +#define PQ_FIRST_ENTRY 1 + +/* left and right children are index * 2 and (index * 2) +1 respectively */ +#define PQ_LEFT_CHILD_INDEX(i) ((i) << 1) + +typedef struct _pqueue { + int size, max_size; + + rectangle_t **elements; + rectangle_t *elements_embedded[1024]; +} pqueue_t; + +typedef struct { + rectangle_t **start; + pqueue_t stop; + rectangle_t head, tail; + rectangle_t *insert_cursor; + int32_t current_y; + int32_t xmin, xmax; + + struct coverage { + struct cell { + struct cell *prev, *next; + int x, covered, uncovered; + } head, tail, *cursor; + unsigned int count; + cairo_freepool_t pool; + } coverage; + + cairo_half_open_span_t spans_stack[CAIRO_STACK_ARRAY_LENGTH (cairo_half_open_span_t)]; + cairo_half_open_span_t *spans; + unsigned int num_spans; + unsigned int size_spans; + + jmp_buf jmpbuf; +} sweep_line_t; + +static inline int +rectangle_compare_start (const rectangle_t *a, + const rectangle_t *b) +{ + int cmp; + + cmp = a->top_y - b->top_y; + if (cmp) + return cmp; + + return a->left - b->left; +} + +static inline int +rectangle_compare_stop (const rectangle_t *a, + const rectangle_t *b) +{ + return a->bottom_y - b->bottom_y; +} + +static inline void +pqueue_init (pqueue_t *pq) +{ + pq->max_size = ARRAY_LENGTH (pq->elements_embedded); + pq->size = 0; + + pq->elements = pq->elements_embedded; + pq->elements[PQ_FIRST_ENTRY] = NULL; +} + +static inline void +pqueue_fini (pqueue_t *pq) +{ + if (pq->elements != pq->elements_embedded) + free (pq->elements); +} + +static cairo_bool_t +pqueue_grow (pqueue_t *pq) +{ + rectangle_t **new_elements; + pq->max_size *= 2; + + if (pq->elements == pq->elements_embedded) { + new_elements = _cairo_malloc_ab (pq->max_size, + sizeof (rectangle_t *)); + if (unlikely (new_elements == NULL)) + return FALSE; + + memcpy (new_elements, pq->elements_embedded, + sizeof (pq->elements_embedded)); + } else { + new_elements = _cairo_realloc_ab (pq->elements, + pq->max_size, + sizeof (rectangle_t *)); + if (unlikely (new_elements == NULL)) + return FALSE; + } + + pq->elements = new_elements; + return TRUE; +} + +static inline void +pqueue_push (sweep_line_t *sweep, rectangle_t *rectangle) +{ + rectangle_t **elements; + int i, parent; + + if (unlikely (sweep->stop.size + 1 == sweep->stop.max_size)) { + if (unlikely (! pqueue_grow (&sweep->stop))) + longjmp (sweep->jmpbuf, + _cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + elements = sweep->stop.elements; + for (i = ++sweep->stop.size; + i != PQ_FIRST_ENTRY && + rectangle_compare_stop (rectangle, + elements[parent = PQ_PARENT_INDEX (i)]) < 0; + i = parent) + { + elements[i] = elements[parent]; + } + + elements[i] = rectangle; +} + +static inline void +pqueue_pop (pqueue_t *pq) +{ + rectangle_t **elements = pq->elements; + rectangle_t *tail; + int child, i; + + tail = elements[pq->size--]; + if (pq->size == 0) { + elements[PQ_FIRST_ENTRY] = NULL; + return; + } + + for (i = PQ_FIRST_ENTRY; + (child = PQ_LEFT_CHILD_INDEX (i)) <= pq->size; + i = child) + { + if (child != pq->size && + rectangle_compare_stop (elements[child+1], + elements[child]) < 0) + { + child++; + } + + if (rectangle_compare_stop (elements[child], tail) >= 0) + break; + + elements[i] = elements[child]; + } + elements[i] = tail; +} + +static inline rectangle_t * +peek_stop (sweep_line_t *sweep) +{ + return sweep->stop.elements[PQ_FIRST_ENTRY]; +} + +CAIRO_COMBSORT_DECLARE (rectangle_sort, rectangle_t *, rectangle_compare_start) + +static void +sweep_line_init (sweep_line_t *sweep) +{ + sweep->head.left = INT_MIN; + sweep->head.next = &sweep->tail; + sweep->tail.left = INT_MAX; + sweep->tail.prev = &sweep->head; + sweep->insert_cursor = &sweep->tail; + + _cairo_freepool_init (&sweep->coverage.pool, sizeof (struct cell)); + + sweep->spans = sweep->spans_stack; + sweep->size_spans = ARRAY_LENGTH (sweep->spans_stack); + + sweep->coverage.head.prev = NULL; + sweep->coverage.head.x = INT_MIN; + sweep->coverage.tail.next = NULL; + sweep->coverage.tail.x = INT_MAX; + + pqueue_init (&sweep->stop); +} + +static void +sweep_line_fini (sweep_line_t *sweep) +{ + _cairo_freepool_fini (&sweep->coverage.pool); + pqueue_fini (&sweep->stop); + + if (sweep->spans != sweep->spans_stack) + free (sweep->spans); +} + +static inline void +add_cell (sweep_line_t *sweep, int x, int covered, int uncovered) +{ + struct cell *cell; + + cell = sweep->coverage.cursor; + if (cell->x > x) { + do { + UNROLL3({ + if (cell->prev->x < x) + break; + cell = cell->prev; + }) + } while (TRUE); + } else { + if (cell->x == x) + goto found; + + do { + UNROLL3({ + cell = cell->next; + if (cell->x >= x) + break; + }) + } while (TRUE); + } + + if (x != cell->x) { + struct cell *c; + + sweep->coverage.count++; + + c = _cairo_freepool_alloc (&sweep->coverage.pool); + if (unlikely (c == NULL)) { + longjmp (sweep->jmpbuf, + _cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + cell->prev->next = c; + c->prev = cell->prev; + c->next = cell; + cell->prev = c; + + c->x = x; + c->covered = 0; + c->uncovered = 0; + + cell = c; + } + +found: + cell->covered += covered; + cell->uncovered += uncovered; + sweep->coverage.cursor = cell; +} + +static inline void +_active_edges_to_spans (sweep_line_t *sweep) +{ + int32_t y = sweep->current_y; + rectangle_t *rectangle; + int coverage, prev_coverage; + int prev_x; + struct cell *cell; + + sweep->num_spans = 0; + if (sweep->head.next == &sweep->tail) + return; + + sweep->coverage.head.next = &sweep->coverage.tail; + sweep->coverage.tail.prev = &sweep->coverage.head; + sweep->coverage.cursor = &sweep->coverage.tail; + sweep->coverage.count = 0; + + /* XXX cell coverage only changes when a rectangle appears or + * disappears. Try only modifying coverage at such times. + */ + for (rectangle = sweep->head.next; + rectangle != &sweep->tail; + rectangle = rectangle->next) + { + int height; + int frac, i; + + if (y == rectangle->bottom_y) { + height = rectangle->bottom & CAIRO_FIXED_FRAC_MASK; + if (height == 0) + continue; + } else + height = CAIRO_FIXED_ONE; + if (y == rectangle->top_y) + height -= rectangle->top & CAIRO_FIXED_FRAC_MASK; + height *= rectangle->dir; + + i = _cairo_fixed_integer_part (rectangle->left), + frac = _cairo_fixed_fractional_part (rectangle->left); + add_cell (sweep, i, + (CAIRO_FIXED_ONE-frac) * height, + frac * height); + + i = _cairo_fixed_integer_part (rectangle->right), + frac = _cairo_fixed_fractional_part (rectangle->right); + add_cell (sweep, i, + -(CAIRO_FIXED_ONE-frac) * height, + -frac * height); + } + + if (2*sweep->coverage.count >= sweep->size_spans) { + unsigned size; + + size = sweep->size_spans; + while (size <= 2*sweep->coverage.count) + size <<= 1; + + if (sweep->spans != sweep->spans_stack) + free (sweep->spans); + + sweep->spans = _cairo_malloc_ab (size, sizeof (cairo_half_open_span_t)); + if (unlikely (sweep->spans == NULL)) + longjmp (sweep->jmpbuf, _cairo_error (CAIRO_STATUS_NO_MEMORY)); + + sweep->size_spans = size; + } + + prev_coverage = coverage = 0; + prev_x = INT_MIN; + for (cell = sweep->coverage.head.next; cell != &sweep->coverage.tail; cell = cell->next) { + if (cell->x != prev_x && coverage != prev_coverage) { + int n = sweep->num_spans++; + int c = coverage >> (CAIRO_FIXED_FRAC_BITS * 2 - 8); + sweep->spans[n].x = prev_x; + sweep->spans[n].inverse = 0; + sweep->spans[n].coverage = c - (c >> 8); + prev_coverage = coverage; + } + + coverage += cell->covered; + if (coverage != prev_coverage) { + int n = sweep->num_spans++; + int c = coverage >> (CAIRO_FIXED_FRAC_BITS * 2 - 8); + sweep->spans[n].x = cell->x; + sweep->spans[n].inverse = 0; + sweep->spans[n].coverage = c - (c >> 8); + prev_coverage = coverage; + } + coverage += cell->uncovered; + prev_x = cell->x + 1; + } + _cairo_freepool_reset (&sweep->coverage.pool); + + if (sweep->num_spans) { + if (prev_x <= sweep->xmax) { + int n = sweep->num_spans++; + int c = coverage >> (CAIRO_FIXED_FRAC_BITS * 2 - 8); + sweep->spans[n].x = prev_x; + sweep->spans[n].inverse = 0; + sweep->spans[n].coverage = c - (c >> 8); + } + + if (coverage && prev_x < sweep->xmax) { + int n = sweep->num_spans++; + sweep->spans[n].x = sweep->xmax; + sweep->spans[n].inverse = 1; + sweep->spans[n].coverage = 0; + } + } +} + +static inline void +sweep_line_delete (sweep_line_t *sweep, + rectangle_t *rectangle) +{ + if (sweep->insert_cursor == rectangle) + sweep->insert_cursor = rectangle->next; + + rectangle->prev->next = rectangle->next; + rectangle->next->prev = rectangle->prev; + + pqueue_pop (&sweep->stop); +} + +static inline void +sweep_line_insert (sweep_line_t *sweep, + rectangle_t *rectangle) +{ + rectangle_t *pos; + + pos = sweep->insert_cursor; + if (pos->left != rectangle->left) { + if (pos->left > rectangle->left) { + do { + UNROLL3({ + if (pos->prev->left < rectangle->left) + break; + pos = pos->prev; + }) + } while (TRUE); + } else { + do { + UNROLL3({ + pos = pos->next; + if (pos->left >= rectangle->left) + break; + }); + } while (TRUE); + } + } + + pos->prev->next = rectangle; + rectangle->prev = pos->prev; + rectangle->next = pos; + pos->prev = rectangle; + sweep->insert_cursor = rectangle; + + pqueue_push (sweep, rectangle); +} + +static void +render_rows (sweep_line_t *sweep_line, + cairo_span_renderer_t *renderer, + int height) +{ + cairo_status_t status; + + _active_edges_to_spans (sweep_line); + + status = renderer->render_rows (renderer, + sweep_line->current_y, height, + sweep_line->spans, + sweep_line->num_spans); + if (unlikely (status)) + longjmp (sweep_line->jmpbuf, status); +} + +static cairo_status_t +generate (cairo_rectangular_scan_converter_t *self, + cairo_span_renderer_t *renderer, + rectangle_t **rectangles) +{ + sweep_line_t sweep_line; + rectangle_t *start, *stop; + cairo_status_t status; + + sweep_line_init (&sweep_line); + sweep_line.xmin = _cairo_fixed_integer_part (self->extents.p1.x); + sweep_line.xmax = _cairo_fixed_integer_part (self->extents.p2.x); + sweep_line.start = rectangles; + if ((status = setjmp (sweep_line.jmpbuf))) + goto out; + + sweep_line.current_y = _cairo_fixed_integer_part (self->extents.p1.y); + start = *sweep_line.start++; + do { + if (start->top_y != sweep_line.current_y) { + render_rows (&sweep_line, renderer, + start->top_y - sweep_line.current_y); + sweep_line.current_y = start->top_y; + } + + do { + sweep_line_insert (&sweep_line, start); + start = *sweep_line.start++; + if (start == NULL) + goto end; + if (start->top_y != sweep_line.current_y) + break; + } while (TRUE); + + render_rows (&sweep_line, renderer, 1); + + stop = peek_stop (&sweep_line); + while (stop->bottom_y == sweep_line.current_y) { + sweep_line_delete (&sweep_line, stop); + stop = peek_stop (&sweep_line); + if (stop == NULL) + break; + } + + sweep_line.current_y++; + + while (stop != NULL && stop->bottom_y < start->top_y) { + if (stop->bottom_y != sweep_line.current_y) { + render_rows (&sweep_line, renderer, + stop->bottom_y - sweep_line.current_y); + sweep_line.current_y = stop->bottom_y; + } + + render_rows (&sweep_line, renderer, 1); + + do { + sweep_line_delete (&sweep_line, stop); + stop = peek_stop (&sweep_line); + } while (stop != NULL && stop->bottom_y == sweep_line.current_y); + + sweep_line.current_y++; + } + } while (TRUE); + + end: + render_rows (&sweep_line, renderer, 1); + + stop = peek_stop (&sweep_line); + while (stop->bottom_y == sweep_line.current_y) { + sweep_line_delete (&sweep_line, stop); + stop = peek_stop (&sweep_line); + if (stop == NULL) + goto out; + } + + while (++sweep_line.current_y < _cairo_fixed_integer_part (self->extents.p2.y)) { + if (stop->bottom_y != sweep_line.current_y) { + render_rows (&sweep_line, renderer, + stop->bottom_y - sweep_line.current_y); + sweep_line.current_y = stop->bottom_y; + } + + render_rows (&sweep_line, renderer, 1); + + do { + sweep_line_delete (&sweep_line, stop); + stop = peek_stop (&sweep_line); + if (stop == NULL) + goto out; + } while (stop->bottom_y == sweep_line.current_y); + + } + + out: + sweep_line_fini (&sweep_line); + + return status; +} +static void generate_row(cairo_span_renderer_t *renderer, + const rectangle_t *r, + int y, int h, + uint16_t coverage) +{ + cairo_half_open_span_t spans[4]; + unsigned int num_spans = 0; + int x1 = _cairo_fixed_integer_part (r->left); + int x2 = _cairo_fixed_integer_part (r->right); + if (x2 > x1) { + if (! _cairo_fixed_is_integer (r->left)) { + spans[num_spans].x = x1; + spans[num_spans].coverage = + coverage * (256 - _cairo_fixed_fractional_part (r->left)) >> 8; + num_spans++; + x1++; + } + + if (x2 > x1) { + spans[num_spans].x = x1; + spans[num_spans].coverage = coverage - (coverage >> 8); + num_spans++; + } + + if (! _cairo_fixed_is_integer (r->right)) { + spans[num_spans].x = x2++; + spans[num_spans].coverage = + coverage * _cairo_fixed_fractional_part (r->right) >> 8; + num_spans++; + } + } else { + spans[num_spans].x = x2++; + spans[num_spans].coverage = coverage * (r->right - r->left) >> 8; + num_spans++; + } + + spans[num_spans].x = x2; + spans[num_spans].coverage = 0; + num_spans++; + + renderer->render_rows (renderer, y, h, spans, num_spans); +} + +static cairo_status_t +generate_box (cairo_rectangular_scan_converter_t *self, + cairo_span_renderer_t *renderer) +{ + const rectangle_t *r = self->chunks.base; + int y1 = _cairo_fixed_integer_part (r->top); + int y2 = _cairo_fixed_integer_part (r->bottom); + if (y2 > y1) { + if (! _cairo_fixed_is_integer (r->top)) { + generate_row(renderer, r, y1, 1, + 256 - _cairo_fixed_fractional_part (r->top)); + y1++; + } + + if (y2 > y1) + generate_row(renderer, r, y1, y2-y1, 256); + + if (! _cairo_fixed_is_integer (r->bottom)) + generate_row(renderer, r, y2, 1, + _cairo_fixed_fractional_part (r->bottom)); + } else + generate_row(renderer, r, y1, 1, r->bottom - r->top); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_rectangular_scan_converter_generate (void *converter, + cairo_span_renderer_t *renderer) +{ + cairo_rectangular_scan_converter_t *self = converter; + rectangle_t *rectangles_stack[CAIRO_STACK_ARRAY_LENGTH (rectangle_t *)]; + rectangle_t **rectangles; + struct _cairo_rectangular_scan_converter_chunk *chunk; + cairo_status_t status; + int i, j; + + if (unlikely (self->num_rectangles == 0)) { + return renderer->render_rows (renderer, + _cairo_fixed_integer_part (self->extents.p1.y), + _cairo_fixed_integer_part (self->extents.p2.y - self->extents.p1.y), + NULL, 0); + } + + if (self->num_rectangles == 1) + return generate_box (self, renderer); + + rectangles = rectangles_stack; + if (unlikely (self->num_rectangles >= ARRAY_LENGTH (rectangles_stack))) { + rectangles = _cairo_malloc_ab (self->num_rectangles + 1, + sizeof (rectangle_t *)); + if (unlikely (rectangles == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + j = 0; + for (chunk = &self->chunks; chunk != NULL; chunk = chunk->next) { + rectangle_t *rectangle; + + rectangle = chunk->base; + for (i = 0; i < chunk->count; i++) + rectangles[j++] = &rectangle[i]; + } + rectangle_sort (rectangles, j); + rectangles[j] = NULL; + + status = generate (self, renderer, rectangles); + + if (rectangles != rectangles_stack) + free (rectangles); + + return status; +} + +static rectangle_t * +_allocate_rectangle (cairo_rectangular_scan_converter_t *self) +{ + rectangle_t *rectangle; + struct _cairo_rectangular_scan_converter_chunk *chunk; + + chunk = self->tail; + if (chunk->count == chunk->size) { + int size; + + size = chunk->size * 2; + chunk->next = _cairo_malloc_ab_plus_c (size, + sizeof (rectangle_t), + sizeof (struct _cairo_rectangular_scan_converter_chunk)); + + if (unlikely (chunk->next == NULL)) + return NULL; + + chunk = chunk->next; + chunk->next = NULL; + chunk->count = 0; + chunk->size = size; + chunk->base = chunk + 1; + self->tail = chunk; + } + + rectangle = chunk->base; + return rectangle + chunk->count++; +} + +cairo_status_t +_cairo_rectangular_scan_converter_add_box (cairo_rectangular_scan_converter_t *self, + const cairo_box_t *box, + int dir) +{ + rectangle_t *rectangle; + + rectangle = _allocate_rectangle (self); + if (unlikely (rectangle == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + rectangle->dir = dir; + rectangle->left = MAX (box->p1.x, self->extents.p1.x); + rectangle->right = MIN (box->p2.x, self->extents.p2.x); + if (unlikely (rectangle->right <= rectangle->left)) { + self->tail->count--; + return CAIRO_STATUS_SUCCESS; + } + + rectangle->top = MAX (box->p1.y, self->extents.p1.y); + rectangle->top_y = _cairo_fixed_integer_floor (rectangle->top); + rectangle->bottom = MIN (box->p2.y, self->extents.p2.y); + rectangle->bottom_y = _cairo_fixed_integer_floor (rectangle->bottom); + if (likely (rectangle->bottom > rectangle->top)) + self->num_rectangles++; + else + self->tail->count--; + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_rectangular_scan_converter_destroy (void *converter) +{ + cairo_rectangular_scan_converter_t *self = converter; + struct _cairo_rectangular_scan_converter_chunk *chunk, *next; + + for (chunk = self->chunks.next; chunk != NULL; chunk = next) { + next = chunk->next; + free (chunk); + } +} + +void +_cairo_rectangular_scan_converter_init (cairo_rectangular_scan_converter_t *self, + const cairo_rectangle_int_t *extents) +{ + self->base.destroy = _cairo_rectangular_scan_converter_destroy; + self->base.generate = _cairo_rectangular_scan_converter_generate; + + _cairo_box_from_rectangle (&self->extents, extents); + + self->chunks.base = self->buf; + self->chunks.next = NULL; + self->chunks.count = 0; + self->chunks.size = sizeof (self->buf) / sizeof (rectangle_t); + self->tail = &self->chunks; + + self->num_rectangles = 0; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-reference-count-private.h b/local/recipes/libs/cairo/source/src/cairo-reference-count-private.h new file mode 100644 index 0000000000..f19125c618 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-reference-count-private.h @@ -0,0 +1,62 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2007 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_REFRENCE_COUNT_PRIVATE_H +#define CAIRO_REFRENCE_COUNT_PRIVATE_H + +#include "cairo-atomic-private.h" + +/* Encapsulate operations on the object's reference count */ +typedef struct { + cairo_atomic_int_t ref_count; +} cairo_reference_count_t; + +#define _cairo_reference_count_inc(RC) _cairo_atomic_int_inc (&(RC)->ref_count) +#define _cairo_reference_count_dec(RC) _cairo_atomic_int_dec (&(RC)->ref_count) +#define _cairo_reference_count_dec_and_test(RC) _cairo_atomic_int_dec_and_test (&(RC)->ref_count) + +#define CAIRO_REFERENCE_COUNT_INIT(RC, VALUE) ((RC)->ref_count = (VALUE)) + +#define CAIRO_REFERENCE_COUNT_GET_VALUE(RC) _cairo_atomic_int_get (&(RC)->ref_count) + +#define CAIRO_REFERENCE_COUNT_INVALID_VALUE ((int) -1) +#define CAIRO_REFERENCE_COUNT_INVALID {CAIRO_REFERENCE_COUNT_INVALID_VALUE} + +#define CAIRO_REFERENCE_COUNT_IS_INVALID(RC) (CAIRO_REFERENCE_COUNT_GET_VALUE (RC) == CAIRO_REFERENCE_COUNT_INVALID_VALUE) + +#define CAIRO_REFERENCE_COUNT_HAS_REFERENCE(RC) (CAIRO_REFERENCE_COUNT_GET_VALUE (RC) > 0) + +#endif diff --git a/local/recipes/libs/cairo/source/src/cairo-region-private.h b/local/recipes/libs/cairo/source/src/cairo-region-private.h new file mode 100644 index 0000000000..549e508789 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-region-private.h @@ -0,0 +1,77 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Owen Taylor + * Vladimir Vukicevic + * Søren Sandmann + */ + +#ifndef CAIRO_REGION_PRIVATE_H +#define CAIRO_REGION_PRIVATE_H + +#include "cairo-types-private.h" +#include "cairo-reference-count-private.h" + +#include + +CAIRO_BEGIN_DECLS + +struct _cairo_region { + cairo_reference_count_t ref_count; + cairo_status_t status; + + pixman_region32_t rgn; +}; + +cairo_private cairo_region_t * +_cairo_region_create_in_error (cairo_status_t status); + +cairo_private void +_cairo_region_init (cairo_region_t *region); + +cairo_private void +_cairo_region_init_rectangle (cairo_region_t *region, + const cairo_rectangle_int_t *rectangle); + +cairo_private void +_cairo_region_fini (cairo_region_t *region); + +cairo_private cairo_region_t * +_cairo_region_create_from_boxes (const cairo_box_t *boxes, int count); + +cairo_private cairo_box_t * +_cairo_region_get_boxes (const cairo_region_t *region, int *nbox); + +CAIRO_END_DECLS + +#endif /* CAIRO_REGION_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-region.c b/local/recipes/libs/cairo/source/src/cairo-region.c new file mode 100644 index 0000000000..6107472948 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-region.c @@ -0,0 +1,922 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Owen Taylor + * Vladimir Vukicevic + * Søren Sandmann + */ + +#include "cairoint.h" + +#include "cairo-error-private.h" +#include "cairo-region-private.h" + +/* XXX need to update pixman headers to be const as appropriate */ +#define CONST_CAST (pixman_region32_t *) + +/** + * SECTION:cairo-region + * @Title: Regions + * @Short_Description: Representing a pixel-aligned area + * + * Regions are a simple graphical data type representing an area of + * integer-aligned rectangles. They are often used on raster surfaces + * to track areas of interest, such as change or clip areas. + **/ + +static const cairo_region_t _cairo_region_nil = { + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ + CAIRO_STATUS_NO_MEMORY, /* status */ +}; + +cairo_region_t * +_cairo_region_create_in_error (cairo_status_t status) +{ + switch (status) { + case CAIRO_STATUS_NO_MEMORY: + return (cairo_region_t *) &_cairo_region_nil; + + case CAIRO_STATUS_SUCCESS: + case CAIRO_STATUS_LAST_STATUS: + ASSERT_NOT_REACHED; + /* fall-through */ + case CAIRO_STATUS_SURFACE_TYPE_MISMATCH: + case CAIRO_STATUS_INVALID_STATUS: + case CAIRO_STATUS_INVALID_CONTENT: + case CAIRO_STATUS_INVALID_FORMAT: + case CAIRO_STATUS_INVALID_VISUAL: + case CAIRO_STATUS_READ_ERROR: + case CAIRO_STATUS_WRITE_ERROR: + case CAIRO_STATUS_FILE_NOT_FOUND: + case CAIRO_STATUS_TEMP_FILE_ERROR: + case CAIRO_STATUS_INVALID_STRIDE: + case CAIRO_STATUS_INVALID_SIZE: + case CAIRO_STATUS_DEVICE_TYPE_MISMATCH: + case CAIRO_STATUS_DEVICE_ERROR: + case CAIRO_STATUS_INVALID_RESTORE: + case CAIRO_STATUS_INVALID_POP_GROUP: + case CAIRO_STATUS_NO_CURRENT_POINT: + case CAIRO_STATUS_INVALID_MATRIX: + case CAIRO_STATUS_NULL_POINTER: + case CAIRO_STATUS_INVALID_STRING: + case CAIRO_STATUS_INVALID_PATH_DATA: + case CAIRO_STATUS_SURFACE_FINISHED: + case CAIRO_STATUS_PATTERN_TYPE_MISMATCH: + case CAIRO_STATUS_INVALID_DASH: + case CAIRO_STATUS_INVALID_DSC_COMMENT: + case CAIRO_STATUS_INVALID_INDEX: + case CAIRO_STATUS_CLIP_NOT_REPRESENTABLE: + case CAIRO_STATUS_FONT_TYPE_MISMATCH: + case CAIRO_STATUS_USER_FONT_IMMUTABLE: + case CAIRO_STATUS_USER_FONT_ERROR: + case CAIRO_STATUS_NEGATIVE_COUNT: + case CAIRO_STATUS_INVALID_CLUSTERS: + case CAIRO_STATUS_INVALID_SLANT: + case CAIRO_STATUS_INVALID_WEIGHT: + case CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED: + case CAIRO_STATUS_INVALID_MESH_CONSTRUCTION: + case CAIRO_STATUS_DEVICE_FINISHED: + case CAIRO_STATUS_JBIG2_GLOBAL_MISSING: + case CAIRO_STATUS_PNG_ERROR: + case CAIRO_STATUS_FREETYPE_ERROR: + case CAIRO_STATUS_WIN32_GDI_ERROR: + case CAIRO_STATUS_TAG_ERROR: + case CAIRO_STATUS_DWRITE_ERROR: + case CAIRO_STATUS_SVG_FONT_ERROR: + default: + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_region_t *) &_cairo_region_nil; + } +} + +/** + * _cairo_region_set_error: + * @region: a region + * @status: a status value indicating an error + * + * Atomically sets region->status to @status and calls _cairo_error; + * Does nothing if status is %CAIRO_STATUS_SUCCESS or any of the internal + * status values. + * + * All assignments of an error status to region->status should happen + * through _cairo_region_set_error(). Note that due to the nature of + * the atomic operation, it is not safe to call this function on the + * nil objects. + * + * The purpose of this function is to allow the user to set a + * breakpoint in _cairo_error() to generate a stack trace for when the + * user causes cairo to detect an error. + * + * Return value: the error status. + **/ +static cairo_status_t +_cairo_region_set_error (cairo_region_t *region, + cairo_status_t status) +{ + if (status == CAIRO_STATUS_SUCCESS) + return CAIRO_STATUS_SUCCESS; + + /* Don't overwrite an existing error. This preserves the first + * error, which is the most significant. */ + _cairo_status_set_error (®ion->status, status); + + return _cairo_error (status); +} + +void +_cairo_region_init (cairo_region_t *region) +{ + VG (VALGRIND_MAKE_MEM_UNDEFINED (region, sizeof (cairo_region_t))); + + region->status = CAIRO_STATUS_SUCCESS; + CAIRO_REFERENCE_COUNT_INIT (®ion->ref_count, 0); + pixman_region32_init (®ion->rgn); +} + +void +_cairo_region_init_rectangle (cairo_region_t *region, + const cairo_rectangle_int_t *rectangle) +{ + VG (VALGRIND_MAKE_MEM_UNDEFINED (region, sizeof (cairo_region_t))); + + region->status = CAIRO_STATUS_SUCCESS; + CAIRO_REFERENCE_COUNT_INIT (®ion->ref_count, 0); + pixman_region32_init_rect (®ion->rgn, + rectangle->x, rectangle->y, + rectangle->width, rectangle->height); +} + +void +_cairo_region_fini (cairo_region_t *region) +{ + assert (! CAIRO_REFERENCE_COUNT_HAS_REFERENCE (®ion->ref_count)); + pixman_region32_fini (®ion->rgn); + VG (VALGRIND_MAKE_MEM_UNDEFINED (region, sizeof (cairo_region_t))); +} + +/** + * cairo_region_create: + * + * Allocates a new empty region object. + * + * Return value: A newly allocated #cairo_region_t. Free with + * cairo_region_destroy(). This function always returns a + * valid pointer; if memory cannot be allocated, then a special + * error object is returned where all operations on the object do nothing. + * You can check for this with cairo_region_status(). + * + * Since: 1.10 + **/ +cairo_region_t * +cairo_region_create (void) +{ + cairo_region_t *region; + + region = _cairo_calloc (sizeof (cairo_region_t)); + if (region == NULL) + return (cairo_region_t *) &_cairo_region_nil; + + region->status = CAIRO_STATUS_SUCCESS; + CAIRO_REFERENCE_COUNT_INIT (®ion->ref_count, 1); + + pixman_region32_init (®ion->rgn); + + return region; +} + +/** + * cairo_region_create_rectangles: + * @rects: an array of @count rectangles + * @count: number of rectangles + * + * Allocates a new region object containing the union of all given @rects. + * + * Return value: A newly allocated #cairo_region_t. Free with + * cairo_region_destroy(). This function always returns a + * valid pointer; if memory cannot be allocated, then a special + * error object is returned where all operations on the object do nothing. + * You can check for this with cairo_region_status(). + * + * Since: 1.10 + **/ +cairo_region_t * +cairo_region_create_rectangles (const cairo_rectangle_int_t *rects, + int count) +{ + pixman_box32_t stack_pboxes[CAIRO_STACK_ARRAY_LENGTH (pixman_box32_t)]; + pixman_box32_t *pboxes = stack_pboxes; + cairo_region_t *region; + int i; + + region = _cairo_calloc (sizeof (cairo_region_t)); + if (unlikely (region == NULL)) + return _cairo_region_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + CAIRO_REFERENCE_COUNT_INIT (®ion->ref_count, 1); + region->status = CAIRO_STATUS_SUCCESS; + + if (count == 1) { + pixman_region32_init_rect (®ion->rgn, + rects->x, rects->y, + rects->width, rects->height); + + return region; + } + + if (count > ARRAY_LENGTH (stack_pboxes)) { + pboxes = _cairo_malloc_ab (count, sizeof (pixman_box32_t)); + if (unlikely (pboxes == NULL)) { + free (region); + return _cairo_region_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + } + + for (i = 0; i < count; i++) { + pboxes[i].x1 = rects[i].x; + pboxes[i].y1 = rects[i].y; + pboxes[i].x2 = rects[i].x + rects[i].width; + pboxes[i].y2 = rects[i].y + rects[i].height; + } + + i = pixman_region32_init_rects (®ion->rgn, pboxes, count); + + if (pboxes != stack_pboxes) + free (pboxes); + + if (unlikely (i == 0)) { + free (region); + return _cairo_region_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + return region; +} + +cairo_region_t * +_cairo_region_create_from_boxes (const cairo_box_t *boxes, int count) +{ + cairo_region_t *region; + + region = _cairo_calloc (sizeof (cairo_region_t)); + if (unlikely (region == NULL)) + return _cairo_region_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + CAIRO_REFERENCE_COUNT_INIT (®ion->ref_count, 1); + region->status = CAIRO_STATUS_SUCCESS; + + if (! pixman_region32_init_rects (®ion->rgn, + (pixman_box32_t *)boxes, count)) { + free (region); + return _cairo_region_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + return region; +} + +cairo_box_t * +_cairo_region_get_boxes (const cairo_region_t *region, int *nbox) +{ + if (region->status) { + nbox = 0; + return NULL; + } + + return (cairo_box_t *) pixman_region32_rectangles (CONST_CAST ®ion->rgn, nbox); +} + +/** + * cairo_region_create_rectangle: + * @rectangle: a #cairo_rectangle_int_t + * + * Allocates a new region object containing @rectangle. + * + * Return value: A newly allocated #cairo_region_t. Free with + * cairo_region_destroy(). This function always returns a + * valid pointer; if memory cannot be allocated, then a special + * error object is returned where all operations on the object do nothing. + * You can check for this with cairo_region_status(). + * + * Since: 1.10 + **/ +cairo_region_t * +cairo_region_create_rectangle (const cairo_rectangle_int_t *rectangle) +{ + cairo_region_t *region; + + region = _cairo_calloc (sizeof (cairo_region_t)); + if (unlikely (region == NULL)) + return (cairo_region_t *) &_cairo_region_nil; + + region->status = CAIRO_STATUS_SUCCESS; + CAIRO_REFERENCE_COUNT_INIT (®ion->ref_count, 1); + + pixman_region32_init_rect (®ion->rgn, + rectangle->x, rectangle->y, + rectangle->width, rectangle->height); + + return region; +} + +/** + * cairo_region_copy: + * @original: a #cairo_region_t + * + * Allocates a new region object copying the area from @original. + * + * Return value: A newly allocated #cairo_region_t. Free with + * cairo_region_destroy(). This function always returns a + * valid pointer; if memory cannot be allocated, then a special + * error object is returned where all operations on the object do nothing. + * You can check for this with cairo_region_status(). + * + * Since: 1.10 + **/ +cairo_region_t * +cairo_region_copy (const cairo_region_t *original) +{ + cairo_region_t *copy; + + if (original != NULL && original->status) + return (cairo_region_t *) &_cairo_region_nil; + + copy = cairo_region_create (); + if (unlikely (copy->status)) + return copy; + + if (original != NULL && + ! pixman_region32_copy (©->rgn, CONST_CAST &original->rgn)) + { + cairo_region_destroy (copy); + return (cairo_region_t *) &_cairo_region_nil; + } + + return copy; +} + +/** + * cairo_region_reference: + * @region: a #cairo_region_t + * + * Increases the reference count on @region by one. This prevents + * @region from being destroyed until a matching call to + * cairo_region_destroy() is made. + * + * Return value: the referenced #cairo_region_t. + * + * Since: 1.10 + **/ +cairo_region_t * +cairo_region_reference (cairo_region_t *region) +{ + if (region == NULL || CAIRO_REFERENCE_COUNT_IS_INVALID (®ion->ref_count)) + return NULL; + + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (®ion->ref_count)); + + _cairo_reference_count_inc (®ion->ref_count); + return region; +} + +/** + * cairo_region_destroy: + * @region: a #cairo_region_t + * + * Destroys a #cairo_region_t object created with + * cairo_region_create(), cairo_region_copy(), or + * or cairo_region_create_rectangle(). + * + * Since: 1.10 + **/ +void +cairo_region_destroy (cairo_region_t *region) +{ + if (region == NULL || CAIRO_REFERENCE_COUNT_IS_INVALID (®ion->ref_count)) + return; + + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (®ion->ref_count)); + + if (! _cairo_reference_count_dec_and_test (®ion->ref_count)) + return; + + _cairo_region_fini (region); + free (region); +} + +/** + * cairo_region_num_rectangles: + * @region: a #cairo_region_t + * + * Returns the number of rectangles contained in @region. + * + * Return value: The number of rectangles contained in @region. + * + * Since: 1.10 + **/ +int +cairo_region_num_rectangles (const cairo_region_t *region) +{ + if (region->status) + return 0; + + return pixman_region32_n_rects (CONST_CAST ®ion->rgn); +} + +/** + * cairo_region_get_rectangle: + * @region: a #cairo_region_t + * @nth: a number indicating which rectangle should be returned + * @rectangle: return location for a #cairo_rectangle_int_t + * + * Stores the @nth rectangle from the region in @rectangle. + * + * Since: 1.10 + **/ +void +cairo_region_get_rectangle (const cairo_region_t *region, + int nth, + cairo_rectangle_int_t *rectangle) +{ + pixman_box32_t *pbox; + + if (region->status) { + rectangle->x = rectangle->y = 0; + rectangle->width = rectangle->height = 0; + return; + } + + pbox = pixman_region32_rectangles (CONST_CAST ®ion->rgn, NULL) + nth; + + rectangle->x = pbox->x1; + rectangle->y = pbox->y1; + rectangle->width = pbox->x2 - pbox->x1; + rectangle->height = pbox->y2 - pbox->y1; +} + +/** + * cairo_region_get_extents: + * @region: a #cairo_region_t + * @extents: rectangle into which to store the extents + * + * Gets the bounding rectangle of @region as a #cairo_rectangle_int_t + * + * Since: 1.10 + **/ +void +cairo_region_get_extents (const cairo_region_t *region, + cairo_rectangle_int_t *extents) +{ + pixman_box32_t *pextents; + + if (region->status) { + extents->x = extents->y = 0; + extents->width = extents->height = 0; + return; + } + + pextents = pixman_region32_extents (CONST_CAST ®ion->rgn); + + extents->x = pextents->x1; + extents->y = pextents->y1; + extents->width = pextents->x2 - pextents->x1; + extents->height = pextents->y2 - pextents->y1; +} + +/** + * cairo_region_status: + * @region: a #cairo_region_t + * + * Checks whether an error has previous occurred for this + * region object. + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY + * + * Since: 1.10 + **/ +cairo_status_t +cairo_region_status (const cairo_region_t *region) +{ + return region->status; +} + +/** + * cairo_region_subtract: + * @dst: a #cairo_region_t + * @other: another #cairo_region_t + * + * Subtracts @other from @dst and places the result in @dst + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY + * + * Since: 1.10 + **/ +cairo_status_t +cairo_region_subtract (cairo_region_t *dst, const cairo_region_t *other) +{ + if (dst->status) + return dst->status; + + if (other->status) + return _cairo_region_set_error (dst, other->status); + + if (! pixman_region32_subtract (&dst->rgn, + &dst->rgn, + CONST_CAST &other->rgn)) + { + return _cairo_region_set_error (dst, CAIRO_STATUS_NO_MEMORY); + } + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_region_subtract_rectangle: + * @dst: a #cairo_region_t + * @rectangle: a #cairo_rectangle_int_t + * + * Subtracts @rectangle from @dst and places the result in @dst + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY + * + * Since: 1.10 + **/ +cairo_status_t +cairo_region_subtract_rectangle (cairo_region_t *dst, + const cairo_rectangle_int_t *rectangle) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + pixman_region32_t region; + + if (dst->status) + return dst->status; + + pixman_region32_init_rect (®ion, + rectangle->x, rectangle->y, + rectangle->width, rectangle->height); + + if (! pixman_region32_subtract (&dst->rgn, &dst->rgn, ®ion)) + status = _cairo_region_set_error (dst, CAIRO_STATUS_NO_MEMORY); + + pixman_region32_fini (®ion); + + return status; +} + +/** + * cairo_region_intersect: + * @dst: a #cairo_region_t + * @other: another #cairo_region_t + * + * Computes the intersection of @dst with @other and places the result in @dst + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY + * + * Since: 1.10 + **/ +cairo_status_t +cairo_region_intersect (cairo_region_t *dst, const cairo_region_t *other) +{ + if (dst->status) + return dst->status; + + if (other->status) + return _cairo_region_set_error (dst, other->status); + + if (! pixman_region32_intersect (&dst->rgn, &dst->rgn, CONST_CAST &other->rgn)) + return _cairo_region_set_error (dst, CAIRO_STATUS_NO_MEMORY); + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_region_intersect_rectangle: + * @dst: a #cairo_region_t + * @rectangle: a #cairo_rectangle_int_t + * + * Computes the intersection of @dst with @rectangle and places the + * result in @dst + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY + * + * Since: 1.10 + **/ +cairo_status_t +cairo_region_intersect_rectangle (cairo_region_t *dst, + const cairo_rectangle_int_t *rectangle) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + pixman_region32_t region; + + if (dst->status) + return dst->status; + + pixman_region32_init_rect (®ion, + rectangle->x, rectangle->y, + rectangle->width, rectangle->height); + + if (! pixman_region32_intersect (&dst->rgn, &dst->rgn, ®ion)) + status = _cairo_region_set_error (dst, CAIRO_STATUS_NO_MEMORY); + + pixman_region32_fini (®ion); + + return status; +} + +/** + * cairo_region_union: + * @dst: a #cairo_region_t + * @other: another #cairo_region_t + * + * Computes the union of @dst with @other and places the result in @dst + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY + * + * Since: 1.10 + **/ +cairo_status_t +cairo_region_union (cairo_region_t *dst, + const cairo_region_t *other) +{ + if (dst->status) + return dst->status; + + if (other->status) + return _cairo_region_set_error (dst, other->status); + + if (! pixman_region32_union (&dst->rgn, &dst->rgn, CONST_CAST &other->rgn)) + return _cairo_region_set_error (dst, CAIRO_STATUS_NO_MEMORY); + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_region_union_rectangle: + * @dst: a #cairo_region_t + * @rectangle: a #cairo_rectangle_int_t + * + * Computes the union of @dst with @rectangle and places the result in @dst. + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY + * + * Since: 1.10 + **/ +cairo_status_t +cairo_region_union_rectangle (cairo_region_t *dst, + const cairo_rectangle_int_t *rectangle) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + pixman_region32_t region; + + if (dst->status) + return dst->status; + + pixman_region32_init_rect (®ion, + rectangle->x, rectangle->y, + rectangle->width, rectangle->height); + + if (! pixman_region32_union (&dst->rgn, &dst->rgn, ®ion)) + status = _cairo_region_set_error (dst, CAIRO_STATUS_NO_MEMORY); + + pixman_region32_fini (®ion); + + return status; +} + +/** + * cairo_region_xor: + * @dst: a #cairo_region_t + * @other: another #cairo_region_t + * + * Computes the exclusive difference of @dst with @other and places the + * result in @dst. That is, @dst will be set to contain all areas that + * are either in @dst or in @other, but not in both. + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY + * + * Since: 1.10 + **/ +cairo_status_t +cairo_region_xor (cairo_region_t *dst, const cairo_region_t *other) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + pixman_region32_t tmp; + + if (dst->status) + return dst->status; + + if (other->status) + return _cairo_region_set_error (dst, other->status); + + pixman_region32_init (&tmp); + + /* XXX: get an xor function into pixman */ + if (! pixman_region32_subtract (&tmp, CONST_CAST &other->rgn, &dst->rgn) || + ! pixman_region32_subtract (&dst->rgn, &dst->rgn, CONST_CAST &other->rgn) || + ! pixman_region32_union (&dst->rgn, &dst->rgn, &tmp)) + status = _cairo_region_set_error (dst, CAIRO_STATUS_NO_MEMORY); + + pixman_region32_fini (&tmp); + + return status; +} + +/** + * cairo_region_xor_rectangle: + * @dst: a #cairo_region_t + * @rectangle: a #cairo_rectangle_int_t + * + * Computes the exclusive difference of @dst with @rectangle and places the + * result in @dst. That is, @dst will be set to contain all areas that are + * either in @dst or in @rectangle, but not in both. + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY + * + * Since: 1.10 + **/ +cairo_status_t +cairo_region_xor_rectangle (cairo_region_t *dst, + const cairo_rectangle_int_t *rectangle) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + pixman_region32_t region, tmp; + + if (dst->status) + return dst->status; + + pixman_region32_init_rect (®ion, + rectangle->x, rectangle->y, + rectangle->width, rectangle->height); + pixman_region32_init (&tmp); + + /* XXX: get an xor function into pixman */ + if (! pixman_region32_subtract (&tmp, ®ion, &dst->rgn) || + ! pixman_region32_subtract (&dst->rgn, &dst->rgn, ®ion) || + ! pixman_region32_union (&dst->rgn, &dst->rgn, &tmp)) + status = _cairo_region_set_error (dst, CAIRO_STATUS_NO_MEMORY); + + pixman_region32_fini (&tmp); + pixman_region32_fini (®ion); + + return status; +} + +/** + * cairo_region_is_empty: + * @region: a #cairo_region_t + * + * Checks whether @region is empty. + * + * Return value: %TRUE if @region is empty, %FALSE if it isn't. + * + * Since: 1.10 + **/ +cairo_bool_t +cairo_region_is_empty (const cairo_region_t *region) +{ + if (region->status) + return TRUE; + + return ! pixman_region32_not_empty (CONST_CAST ®ion->rgn); +} + +/** + * cairo_region_translate: + * @region: a #cairo_region_t + * @dx: Amount to translate in the x direction + * @dy: Amount to translate in the y direction + * + * Translates @region by (@dx, @dy). + * + * Since: 1.10 + **/ +void +cairo_region_translate (cairo_region_t *region, + int dx, int dy) +{ + if (region->status) + return; + + pixman_region32_translate (®ion->rgn, dx, dy); +} + +/** + * cairo_region_contains_rectangle: + * @region: a #cairo_region_t + * @rectangle: a #cairo_rectangle_int_t + * + * Checks whether @rectangle is inside, outside or partially contained + * in @region + * + * Return value: + * %CAIRO_REGION_OVERLAP_IN if @rectangle is entirely inside @region, + * %CAIRO_REGION_OVERLAP_OUT if @rectangle is entirely outside @region, or + * %CAIRO_REGION_OVERLAP_PART if @rectangle is partially inside and partially outside @region. + * + * Since: 1.10 + **/ +cairo_region_overlap_t +cairo_region_contains_rectangle (const cairo_region_t *region, + const cairo_rectangle_int_t *rectangle) +{ + pixman_box32_t pbox; + pixman_region_overlap_t poverlap; + + if (region->status) + return CAIRO_REGION_OVERLAP_OUT; + + pbox.x1 = rectangle->x; + pbox.y1 = rectangle->y; + pbox.x2 = rectangle->x + rectangle->width; + pbox.y2 = rectangle->y + rectangle->height; + + poverlap = pixman_region32_contains_rectangle (CONST_CAST ®ion->rgn, + &pbox); + switch (poverlap) { + default: + case PIXMAN_REGION_OUT: return CAIRO_REGION_OVERLAP_OUT; + case PIXMAN_REGION_IN: return CAIRO_REGION_OVERLAP_IN; + case PIXMAN_REGION_PART: return CAIRO_REGION_OVERLAP_PART; + } +} + +/** + * cairo_region_contains_point: + * @region: a #cairo_region_t + * @x: the x coordinate of a point + * @y: the y coordinate of a point + * + * Checks whether (@x, @y) is contained in @region. + * + * Return value: %TRUE if (@x, @y) is contained in @region, %FALSE if it is not. + * + * Since: 1.10 + **/ +cairo_bool_t +cairo_region_contains_point (const cairo_region_t *region, + int x, int y) +{ + pixman_box32_t box; + + if (region->status) + return FALSE; + + return pixman_region32_contains_point (CONST_CAST ®ion->rgn, x, y, &box); +} + +/** + * cairo_region_equal: + * @a: a #cairo_region_t or %NULL + * @b: a #cairo_region_t or %NULL + * + * Compares whether region_a is equivalent to region_b. %NULL as an argument + * is equal to itself, but not to any non-%NULL region. + * + * Return value: %TRUE if both regions contained the same coverage, + * %FALSE if it is not or any region is in an error status. + * + * Since: 1.10 + **/ +cairo_bool_t +cairo_region_equal (const cairo_region_t *a, + const cairo_region_t *b) +{ + /* error objects are never equal */ + if ((a != NULL && a->status) || (b != NULL && b->status)) + return FALSE; + + if (a == b) + return TRUE; + + if (a == NULL || b == NULL) + return FALSE; + + return pixman_region32_equal (CONST_CAST &a->rgn, CONST_CAST &b->rgn); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-rtree-private.h b/local/recipes/libs/cairo/source/src/cairo-rtree-private.h new file mode 100644 index 0000000000..27806cab60 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-rtree-private.h @@ -0,0 +1,142 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + * + */ + +#ifndef CAIRO_RTREE_PRIVATE_H +#define CAIRO_RTREE_PRIVATE_H + +#include "cairo-compiler-private.h" +#include "cairo-error-private.h" +#include "cairo-types-private.h" + +#include "cairo-freelist-private.h" +#include "cairo-list-inline.h" + +enum { + CAIRO_RTREE_NODE_AVAILABLE, + CAIRO_RTREE_NODE_DIVIDED, + CAIRO_RTREE_NODE_OCCUPIED, +}; + +typedef struct _cairo_rtree_node { + struct _cairo_rtree_node *children[4], *parent; + cairo_list_t link; + uint16_t pinned; + uint16_t state; + uint16_t x, y; + uint16_t width, height; +} cairo_rtree_node_t; + +typedef struct _cairo_rtree { + cairo_rtree_node_t root; + int min_size; + cairo_list_t pinned; + cairo_list_t available; + cairo_list_t evictable; + void (*destroy) (cairo_rtree_node_t *); + cairo_freepool_t node_freepool; +} cairo_rtree_t; + +cairo_private cairo_rtree_node_t * +_cairo_rtree_node_create (cairo_rtree_t *rtree, + cairo_rtree_node_t *parent, + int x, + int y, + int width, + int height); + +cairo_private cairo_status_t +_cairo_rtree_node_insert (cairo_rtree_t *rtree, + cairo_rtree_node_t *node, + int width, + int height, + cairo_rtree_node_t **out); + +cairo_private void +_cairo_rtree_node_collapse (cairo_rtree_t *rtree, cairo_rtree_node_t *node); + +cairo_private void +_cairo_rtree_node_remove (cairo_rtree_t *rtree, cairo_rtree_node_t *node); + +cairo_private void +_cairo_rtree_node_destroy (cairo_rtree_t *rtree, cairo_rtree_node_t *node); + +cairo_private void +_cairo_rtree_init (cairo_rtree_t *rtree, + int width, + int height, + int min_size, + int node_size, + void (*destroy)(cairo_rtree_node_t *)); + +cairo_private cairo_int_status_t +_cairo_rtree_insert (cairo_rtree_t *rtree, + int width, + int height, + cairo_rtree_node_t **out); + +cairo_private cairo_int_status_t +_cairo_rtree_evict_random (cairo_rtree_t *rtree, + int width, + int height, + cairo_rtree_node_t **out); + +cairo_private void +_cairo_rtree_foreach (cairo_rtree_t *rtree, + void (*func)(cairo_rtree_node_t *, void *data), + void *data); + +static inline void * +_cairo_rtree_pin (cairo_rtree_t *rtree, cairo_rtree_node_t *node) +{ + assert (node->state == CAIRO_RTREE_NODE_OCCUPIED); + if (! node->pinned) { + cairo_list_move (&node->link, &rtree->pinned); + node->pinned = 1; + } + + return node; +} + +cairo_private void +_cairo_rtree_unpin (cairo_rtree_t *rtree); + +cairo_private void +_cairo_rtree_reset (cairo_rtree_t *rtree); + +cairo_private void +_cairo_rtree_fini (cairo_rtree_t *rtree); + +#endif /* CAIRO_RTREE_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-rtree.c b/local/recipes/libs/cairo/source/src/cairo-rtree.c new file mode 100644 index 0000000000..dbc040929a --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-rtree.c @@ -0,0 +1,388 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + * + */ + +#include "cairoint.h" + +#include "cairo-error-private.h" +#include "cairo-rtree-private.h" + +cairo_rtree_node_t * +_cairo_rtree_node_create (cairo_rtree_t *rtree, + cairo_rtree_node_t *parent, + int x, + int y, + int width, + int height) +{ + cairo_rtree_node_t *node; + + node = _cairo_freepool_alloc (&rtree->node_freepool); + if (node == NULL) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return NULL; + } + + node->children[0] = NULL; + node->parent = parent; + node->state = CAIRO_RTREE_NODE_AVAILABLE; + node->pinned = FALSE; + node->x = x; + node->y = y; + node->width = width; + node->height = height; + + cairo_list_add (&node->link, &rtree->available); + + return node; +} + +void +_cairo_rtree_node_destroy (cairo_rtree_t *rtree, cairo_rtree_node_t *node) +{ + int i; + + cairo_list_del (&node->link); + + if (node->state == CAIRO_RTREE_NODE_OCCUPIED) { + rtree->destroy (node); + } else { + for (i = 0; i < 4 && node->children[i] != NULL; i++) + _cairo_rtree_node_destroy (rtree, node->children[i]); + } + + _cairo_freepool_free (&rtree->node_freepool, node); +} + +void +_cairo_rtree_node_collapse (cairo_rtree_t *rtree, cairo_rtree_node_t *node) +{ + int i; + + do { + assert (node->state == CAIRO_RTREE_NODE_DIVIDED); + + for (i = 0; i < 4 && node->children[i] != NULL; i++) + if (node->children[i]->state != CAIRO_RTREE_NODE_AVAILABLE) + return; + + for (i = 0; i < 4 && node->children[i] != NULL; i++) + _cairo_rtree_node_destroy (rtree, node->children[i]); + + node->children[0] = NULL; + node->state = CAIRO_RTREE_NODE_AVAILABLE; + cairo_list_move (&node->link, &rtree->available); + } while ((node = node->parent) != NULL); +} + +cairo_status_t +_cairo_rtree_node_insert (cairo_rtree_t *rtree, + cairo_rtree_node_t *node, + int width, + int height, + cairo_rtree_node_t **out) +{ + int w, h, i; + + assert (node->state == CAIRO_RTREE_NODE_AVAILABLE); + assert (node->pinned == FALSE); + + if (node->width - width > rtree->min_size || + node->height - height > rtree->min_size) + { + w = node->width - width; + h = node->height - height; + + i = 0; + node->children[i] = _cairo_rtree_node_create (rtree, node, + node->x, node->y, + width, height); + if (unlikely (node->children[i] == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + i++; + + if (w > rtree->min_size) { + node->children[i] = _cairo_rtree_node_create (rtree, node, + node->x + width, + node->y, + w, height); + if (unlikely (node->children[i] == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + i++; + } + + if (h > rtree->min_size) { + node->children[i] = _cairo_rtree_node_create (rtree, node, + node->x, + node->y + height, + width, h); + if (unlikely (node->children[i] == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + i++; + + if (w > rtree->min_size) { + node->children[i] = _cairo_rtree_node_create (rtree, node, + node->x + width, + node->y + height, + w, h); + if (unlikely (node->children[i] == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + i++; + } + } + + if (i < 4) + node->children[i] = NULL; + + node->state = CAIRO_RTREE_NODE_DIVIDED; + cairo_list_move (&node->link, &rtree->evictable); + node = node->children[0]; + } + + node->state = CAIRO_RTREE_NODE_OCCUPIED; + cairo_list_move (&node->link, &rtree->evictable); + *out = node; + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_rtree_node_remove (cairo_rtree_t *rtree, cairo_rtree_node_t *node) +{ + assert (node->state == CAIRO_RTREE_NODE_OCCUPIED); + assert (node->pinned == FALSE); + + rtree->destroy (node); + + node->state = CAIRO_RTREE_NODE_AVAILABLE; + cairo_list_move (&node->link, &rtree->available); + + _cairo_rtree_node_collapse (rtree, node->parent); +} + +cairo_int_status_t +_cairo_rtree_insert (cairo_rtree_t *rtree, + int width, + int height, + cairo_rtree_node_t **out) +{ + cairo_rtree_node_t *node; + + cairo_list_foreach_entry (node, cairo_rtree_node_t, + &rtree->available, link) + { + if (node->width >= width && node->height >= height) + return _cairo_rtree_node_insert (rtree, node, width, height, out); + } + + return CAIRO_INT_STATUS_UNSUPPORTED; +} + +static uint32_t +hars_petruska_f54_1_random (void) +{ +#define rol(x,k) ((x << k) | (x >> (32-k))) + static uint32_t x; + return x = (x ^ rol (x, 5) ^ rol (x, 24)) + 0x37798849; +#undef rol +} + +cairo_int_status_t +_cairo_rtree_evict_random (cairo_rtree_t *rtree, + int width, + int height, + cairo_rtree_node_t **out) +{ + cairo_int_status_t ret = CAIRO_INT_STATUS_UNSUPPORTED; + cairo_rtree_node_t *node, *next; + cairo_list_t tmp_pinned; + int i, cnt; + + cairo_list_init (&tmp_pinned); + + /* propagate pinned from children to root */ + cairo_list_foreach_entry_safe (node, next, + cairo_rtree_node_t, &rtree->pinned, link) { + node = node->parent; + while (node && ! node->pinned) { + node->pinned = 1; + cairo_list_move (&node->link, &tmp_pinned); + node = node->parent; + } + } + + cnt = 0; + cairo_list_foreach_entry (node, cairo_rtree_node_t, + &rtree->evictable, link) + { + if (node->width >= width && node->height >= height) + cnt++; + } + + if (cnt == 0) + goto out; + + cnt = hars_petruska_f54_1_random () % cnt; + cairo_list_foreach_entry (node, cairo_rtree_node_t, + &rtree->evictable, link) + { + if (node->width >= width && node->height >= height && cnt-- == 0) { + if (node->state == CAIRO_RTREE_NODE_OCCUPIED) { + rtree->destroy (node); + } else { + for (i = 0; i < 4 && node->children[i] != NULL; i++) + _cairo_rtree_node_destroy (rtree, node->children[i]); + node->children[0] = NULL; + } + + node->state = CAIRO_RTREE_NODE_AVAILABLE; + cairo_list_move (&node->link, &rtree->available); + + *out = node; + ret = CAIRO_STATUS_SUCCESS; + break; + } + } + +out: + while (! cairo_list_is_empty (&tmp_pinned)) { + node = cairo_list_first_entry (&tmp_pinned, cairo_rtree_node_t, link); + node->pinned = 0; + cairo_list_move (&node->link, &rtree->evictable); + } + return ret; +} + +void +_cairo_rtree_unpin (cairo_rtree_t *rtree) +{ + while (! cairo_list_is_empty (&rtree->pinned)) { + cairo_rtree_node_t *node = cairo_list_first_entry (&rtree->pinned, + cairo_rtree_node_t, + link); + node->pinned = 0; + cairo_list_move (&node->link, &rtree->evictable); + } +} + +void +_cairo_rtree_init (cairo_rtree_t *rtree, + int width, + int height, + int min_size, + int node_size, + void (*destroy) (cairo_rtree_node_t *)) +{ + assert (node_size >= (int) sizeof (cairo_rtree_node_t)); + _cairo_freepool_init (&rtree->node_freepool, node_size); + + cairo_list_init (&rtree->available); + cairo_list_init (&rtree->pinned); + cairo_list_init (&rtree->evictable); + + rtree->min_size = min_size; + rtree->destroy = destroy; + + memset (&rtree->root, 0, sizeof (rtree->root)); + rtree->root.width = width; + rtree->root.height = height; + rtree->root.state = CAIRO_RTREE_NODE_AVAILABLE; + cairo_list_add (&rtree->root.link, &rtree->available); +} + +void +_cairo_rtree_reset (cairo_rtree_t *rtree) +{ + int i; + + if (rtree->root.state == CAIRO_RTREE_NODE_OCCUPIED) { + rtree->destroy (&rtree->root); + } else { + for (i = 0; i < 4 && rtree->root.children[i] != NULL; i++) + _cairo_rtree_node_destroy (rtree, rtree->root.children[i]); + rtree->root.children[0] = NULL; + } + + cairo_list_init (&rtree->available); + cairo_list_init (&rtree->evictable); + cairo_list_init (&rtree->pinned); + + rtree->root.state = CAIRO_RTREE_NODE_AVAILABLE; + rtree->root.pinned = FALSE; + cairo_list_add (&rtree->root.link, &rtree->available); +} + +static void +_cairo_rtree_node_foreach (cairo_rtree_node_t *node, + void (*func)(cairo_rtree_node_t *, void *data), + void *data) +{ + int i; + + for (i = 0; i < 4 && node->children[i] != NULL; i++) + _cairo_rtree_node_foreach(node->children[i], func, data); + + func(node, data); +} + +void +_cairo_rtree_foreach (cairo_rtree_t *rtree, + void (*func)(cairo_rtree_node_t *, void *data), + void *data) +{ + int i; + + if (rtree->root.state == CAIRO_RTREE_NODE_OCCUPIED) { + func(&rtree->root, data); + } else { + for (i = 0; i < 4 && rtree->root.children[i] != NULL; i++) + _cairo_rtree_node_foreach (rtree->root.children[i], func, data); + } +} + +void +_cairo_rtree_fini (cairo_rtree_t *rtree) +{ + int i; + + if (rtree->root.state == CAIRO_RTREE_NODE_OCCUPIED) { + rtree->destroy (&rtree->root); + } else { + for (i = 0; i < 4 && rtree->root.children[i] != NULL; i++) + _cairo_rtree_node_destroy (rtree, rtree->root.children[i]); + } + + _cairo_freepool_fini (&rtree->node_freepool); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-scaled-font-private.h b/local/recipes/libs/cairo/source/src/cairo-scaled-font-private.h new file mode 100644 index 0000000000..64abbe0f51 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-scaled-font-private.h @@ -0,0 +1,200 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_SCALED_FONT_PRIVATE_H +#define CAIRO_SCALED_FONT_PRIVATE_H + +#include "cairo.h" + +#include "cairo-types-private.h" +#include "cairo-list-private.h" +#include "cairo-mutex-type-private.h" +#include "cairo-reference-count-private.h" + +CAIRO_BEGIN_DECLS + +typedef struct _cairo_scaled_glyph_page cairo_scaled_glyph_page_t; + +struct _cairo_scaled_font { + /* For most cairo objects, the rule for multiple threads is that + * the user is responsible for any locking if the same object is + * manipulated from multiple threads simultaneously. + * + * However, with the caching that cairo does for scaled fonts, a + * user can easily end up with the same cairo_scaled_font object + * being manipulated from multiple threads without the user ever + * being aware of this, (and in fact, unable to control it). + * + * So, as a special exception, the cairo implementation takes care + * of all locking needed for cairo_scaled_font_t. Most of what is + * in the scaled font is immutable, (which is what allows for the + * sharing in the first place). The things that are modified and + * the locks protecting them are as follows: + * + * 1. The reference count (scaled_font->ref_count) + * + * Modifications to the reference count are protected by the + * _cairo_scaled_font_map_mutex. This is because the reference + * count of a scaled font is intimately related with the font + * map itself, (and the magic holdovers array). + * + * 2. The cache of glyphs (scaled_font->glyphs) + * 3. The backend private data (scaled_font->surface_backend, + * scaled_font->surface_private) + * + * Modifications to these fields are protected with locks on + * scaled_font->mutex in the generic scaled_font code. + */ + + cairo_hash_entry_t hash_entry; + + /* useful bits for _cairo_scaled_font_nil */ + cairo_status_t status; + cairo_reference_count_t ref_count; + cairo_user_data_array_t user_data; + + cairo_font_face_t *original_font_face; /* may be NULL */ + + /* hash key members */ + cairo_font_face_t *font_face; /* may be NULL */ + cairo_matrix_t font_matrix; /* font space => user space */ + cairo_matrix_t ctm; /* user space => device space */ + cairo_font_options_t options; + + unsigned int placeholder : 1; /* protected by fontmap mutex */ + unsigned int holdover : 1; + unsigned int finished : 1; + + /* "live" scaled_font members */ + cairo_matrix_t scale; /* font space => device space */ + cairo_matrix_t scale_inverse; /* device space => font space */ + double max_scale; /* maximum x/y expansion of scale */ + cairo_font_extents_t extents; /* user space */ + cairo_font_extents_t fs_extents; /* font space */ + + /* The mutex protects modification to all subsequent fields. */ + cairo_recursive_mutex_t mutex; + + cairo_hash_table_t *glyphs; + cairo_list_t glyph_pages; + cairo_bool_t cache_frozen; + cairo_bool_t global_cache_frozen; + cairo_array_t recording_surfaces_to_free; /* array of cairo_surface_t* */ + + cairo_list_t dev_privates; + + /* font backend managing this scaled font */ + const cairo_scaled_font_backend_t *backend; + cairo_list_t link; +}; + +struct _cairo_scaled_font_private { + cairo_list_t link; + const void *key; + void (*destroy) (cairo_scaled_font_private_t *, + cairo_scaled_font_t *); +}; + +struct _cairo_scaled_glyph { + cairo_hash_entry_t hash_entry; + + cairo_text_extents_t metrics; /* user-space metrics */ + cairo_text_extents_t fs_metrics; /* font-space metrics */ + cairo_box_t bbox; /* device-space bounds */ + int16_t x_advance; /* device-space rounded X advance */ + int16_t y_advance; /* device-space rounded Y advance */ + + unsigned int has_info; + cairo_image_surface_t *surface; /* device-space image */ + cairo_path_fixed_t *path; /* device-space outline */ + cairo_surface_t *recording_surface; /* device-space recording-surface */ + cairo_image_surface_t *color_surface; /* device-space color image */ + + const void *dev_private_key; + void *dev_private; + cairo_list_t dev_privates; + + cairo_color_t foreground_color; /* only used for color glyphs */ + + /* TRUE if the recording_surface used the foreground_source to render. */ + unsigned recording_uses_foreground_color : 1; + + /* TRUE if the recording surface uses the foreground marker. */ + unsigned recording_uses_foreground_marker : 1; + + /* TRUE if color_glyph specifies if glyph is color or non color, FALSE if glyph color type unknown. */ + unsigned color_glyph_set : 1; + + unsigned color_glyph : 1; +}; + +struct _cairo_scaled_glyph_private { + cairo_list_t link; + const void *key; + void (*destroy) (cairo_scaled_glyph_private_t *, + cairo_scaled_glyph_t *, + cairo_scaled_font_t *); +}; + +cairo_private cairo_scaled_font_private_t * +_cairo_scaled_font_find_private (cairo_scaled_font_t *scaled_font, + const void *key); + +cairo_private void +_cairo_scaled_font_attach_private (cairo_scaled_font_t *scaled_font, + cairo_scaled_font_private_t *priv, + const void *key, + void (*destroy) (cairo_scaled_font_private_t *, + cairo_scaled_font_t *)); + +cairo_private cairo_scaled_glyph_private_t * +_cairo_scaled_glyph_find_private (cairo_scaled_glyph_t *scaled_glyph, + const void *key); + +cairo_private void +_cairo_scaled_glyph_attach_private (cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_glyph_private_t *priv, + const void *key, + void (*destroy) (cairo_scaled_glyph_private_t *, + cairo_scaled_glyph_t *, + cairo_scaled_font_t *)); +cairo_private cairo_bool_t +_cairo_scaled_font_has_color_glyphs (cairo_scaled_font_t *scaled_font); + +CAIRO_END_DECLS + +#endif /* CAIRO_SCALED_FONT_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-scaled-font-subsets-private.h b/local/recipes/libs/cairo/source/src/cairo-scaled-font-subsets-private.h new file mode 100644 index 0000000000..2599bb6c35 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-scaled-font-subsets-private.h @@ -0,0 +1,710 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_SCALED_FONT_SUBSETS_PRIVATE_H +#define CAIRO_SCALED_FONT_SUBSETS_PRIVATE_H + +#include "cairoint.h" + +#if CAIRO_HAS_FONT_SUBSET + +CAIRO_BEGIN_DECLS + +typedef struct _cairo_scaled_font_subsets_glyph { + unsigned int font_id; + unsigned int subset_id; + unsigned int subset_glyph_index; + cairo_bool_t is_scaled; + cairo_bool_t is_composite; + cairo_bool_t is_latin; + double x_advance; + double y_advance; + cairo_bool_t utf8_is_mapped; + uint32_t unicode; +} cairo_scaled_font_subsets_glyph_t; + +/** + * _cairo_scaled_font_subsets_create_scaled: + * + * Create a new #cairo_scaled_font_subsets_t object which can be used + * to create subsets of any number of #cairo_scaled_font_t + * objects. This allows the (arbitrarily large and sparse) glyph + * indices of a #cairo_scaled_font_t to be mapped to one or more font + * subsets with glyph indices packed into the range + * [0 .. max_glyphs_per_subset). + * + * Return value: a pointer to the newly creates font subsets. The + * caller owns this object and should call + * _cairo_scaled_font_subsets_destroy() when done with it. + **/ +cairo_private cairo_scaled_font_subsets_t * +_cairo_scaled_font_subsets_create_scaled (void); + +/** + * _cairo_scaled_font_subsets_create_simple: + * + * Create a new #cairo_scaled_font_subsets_t object which can be used + * to create font subsets suitable for embedding as Postscript or PDF + * simple fonts. + * + * Glyphs with an outline path available will be mapped to one font + * subset for each font face. Glyphs from bitmap fonts will mapped to + * separate font subsets for each #cairo_scaled_font_t object. + * + * The maximum number of glyphs per subset is 256. Each subset + * reserves the first glyph for the .notdef glyph. + * + * Return value: a pointer to the newly creates font subsets. The + * caller owns this object and should call + * _cairo_scaled_font_subsets_destroy() when done with it. + **/ +cairo_private cairo_scaled_font_subsets_t * +_cairo_scaled_font_subsets_create_simple (void); + +/** + * _cairo_scaled_font_subsets_create_composite: + * + * Create a new #cairo_scaled_font_subsets_t object which can be used + * to create font subsets suitable for embedding as Postscript or PDF + * composite fonts. + * + * Glyphs with an outline path available will be mapped to one font + * subset for each font face. Each unscaled subset has a maximum of + * 65536 glyphs except for Type1 fonts which have a maximum of 256 glyphs. + * + * Glyphs from bitmap fonts will mapped to separate font subsets for + * each #cairo_scaled_font_t object. Each unscaled subset has a maximum + * of 256 glyphs. + * + * Each subset reserves the first glyph for the .notdef glyph. + * + * Return value: a pointer to the newly creates font subsets. The + * caller owns this object and should call + * _cairo_scaled_font_subsets_destroy() when done with it. + **/ +cairo_private cairo_scaled_font_subsets_t * +_cairo_scaled_font_subsets_create_composite (void); + +/** + * _cairo_scaled_font_subsets_destroy: + * @font_subsets: a #cairo_scaled_font_subsets_t object to be destroyed + * + * Destroys @font_subsets and all resources associated with it. + **/ +cairo_private void +_cairo_scaled_font_subsets_destroy (cairo_scaled_font_subsets_t *font_subsets); + +/** + * _cairo_scaled_font_subsets_enable_latin_subset: + * @font_subsets: a #cairo_scaled_font_subsets_t object to be destroyed + * @use_latin: a #cairo_bool_t indicating if a latin subset is to be used + * + * If enabled, all CP1252 characters will be placed in a separate + * 8-bit latin subset. + **/ +cairo_private void +_cairo_scaled_font_subsets_enable_latin_subset (cairo_scaled_font_subsets_t *font_subsets, + cairo_bool_t use_latin); + +/** + * _cairo_scaled_font_subsets_map_glyph: + * @font_subsets: a #cairo_scaled_font_subsets_t + * @scaled_font: the font of the glyph to be mapped + * @scaled_font_glyph_index: the index of the glyph to be mapped + * @utf8: a string of text encoded in UTF-8 + * @utf8_len: length of @utf8 in bytes + * @subset_glyph_ret: return structure containing subset font and glyph id + * + * Map a glyph from a #cairo_scaled_font to a new index within a + * subset of that font. The mapping performed is from the tuple: + * + * (scaled_font, scaled_font_glyph_index) + * + * to the tuple: + * + * (font_id, subset_id, subset_glyph_index) + * + * This mapping is 1:1. If the input tuple has previously mapped, the + * the output tuple previously returned will be returned again. + * + * Otherwise, the return tuple will be constructed as follows: + * + * 1) There is a 1:1 correspondence between the input scaled_font + * value and the output font_id value. If no mapping has been + * previously performed with the scaled_font value then the + * smallest unused font_id value will be returned. + * + * 2) Within the set of output tuples of the same font_id value the + * smallest value of subset_id will be returned such that + * subset_glyph_index does not exceed max_glyphs_per_subset (as + * passed to _cairo_scaled_font_subsets_create()) and that the + * resulting tuple is unique. + * + * 3) The smallest value of subset_glyph_index is returned such that + * the resulting tuple is unique. + * + * The net result is that any #cairo_scaled_font_t will be represented + * by one or more font subsets. Each subset is effectively a tuple of + * (scaled_font, font_id, subset_id) and within each subset there + * exists a mapping of scaled_glyph_font_index to subset_glyph_index. + * + * This final description of a font subset is the same representation + * used by #cairo_scaled_font_subset_t as provided by + * _cairo_scaled_font_subsets_foreach. + * + * @utf8 and @utf8_len specify a string of unicode characters that the + * glyph @scaled_font_glyph_index maps to. If @utf8_is_mapped in + * @subset_glyph_ret is %TRUE, the font subsetting will (where index to + * unicode mapping is supported) ensure that @scaled_font_glyph_index + * maps to @utf8. If @utf8_is_mapped is %FALSE, + * @scaled_font_glyph_index has already been mapped to a different + * unicode string. + * + * The returned values in the #cairo_scaled_font_subsets_glyph_t struct are: + * + * @font_id: The font ID of the mapped glyph + * @subset_id : The subset ID of the mapped glyph within the @font_id + * @subset_glyph_index: The index of the mapped glyph within the @subset_id subset + * @is_scaled: If true, the mapped glyph is from a bitmap font, and separate font + * subset is created for each font scale used. If false, the outline of the mapped glyph + * is available. One font subset for each font face is created. + * @x_advance, @y_advance: When @is_scaled is true, @x_advance and @y_advance contain + * the x and y advance for the mapped glyph in device space. + * When @is_scaled is false, @x_advance and @y_advance contain the x and y advance for + * the mapped glyph from an unhinted 1 point font. + * @utf8_is_mapped: If true the utf8 string provided to _cairo_scaled_font_subsets_map_glyph() + * is (or already was) the utf8 string mapped to this glyph. If false the glyph is already + * mapped to a different utf8 string. + * @unicode: the unicode character mapped to this glyph by the font backend. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, or a non-zero + * value indicating an error. Possible errors include + * %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_status_t +_cairo_scaled_font_subsets_map_glyph (cairo_scaled_font_subsets_t *font_subsets, + cairo_scaled_font_t *scaled_font, + unsigned long scaled_font_glyph_index, + const char * utf8, + int utf8_len, + cairo_scaled_font_subsets_glyph_t *subset_glyph_ret); + +typedef cairo_int_status_t +(*cairo_scaled_font_subset_callback_func_t) (cairo_scaled_font_subset_t *font_subset, + void *closure); + +/** + * _cairo_scaled_font_subsets_foreach_scaled: + * @font_subsets: a #cairo_scaled_font_subsets_t + * @font_subset_callback: a function to be called for each font subset + * @closure: closure data for the callback function + * + * Iterate over each unique scaled font subset as created by calls to + * _cairo_scaled_font_subsets_map_glyph(). A subset is determined by + * unique pairs of (font_id, subset_id) as returned by + * _cairo_scaled_font_subsets_map_glyph(). + * + * For each subset, @font_subset_callback will be called and will be + * provided with both a #cairo_scaled_font_subset_t object containing + * all the glyphs in the subset as well as the value of @closure. + * + * The #cairo_scaled_font_subset_t object contains the scaled_font, + * the font_id, and the subset_id corresponding to all glyphs + * belonging to the subset. In addition, it contains an array providing + * a mapping between subset glyph indices and the original scaled font + * glyph indices. + * + * The index of the array corresponds to subset_glyph_index values + * returned by _cairo_scaled_font_subsets_map_glyph() while the + * values of the array correspond to the scaled_font_glyph_index + * values passed as input to the same function. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, or a non-zero + * value indicating an error. Possible errors include + * %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_status_t +_cairo_scaled_font_subsets_foreach_scaled (cairo_scaled_font_subsets_t *font_subsets, + cairo_scaled_font_subset_callback_func_t font_subset_callback, + void *closure); + +/** + * _cairo_scaled_font_subsets_foreach_unscaled: + * @font_subsets: a #cairo_scaled_font_subsets_t + * @font_subset_callback: a function to be called for each font subset + * @closure: closure data for the callback function + * + * Iterate over each unique unscaled font subset as created by calls to + * _cairo_scaled_font_subsets_map_glyph(). A subset is determined by + * unique pairs of (font_id, subset_id) as returned by + * _cairo_scaled_font_subsets_map_glyph(). + * + * For each subset, @font_subset_callback will be called and will be + * provided with both a #cairo_scaled_font_subset_t object containing + * all the glyphs in the subset as well as the value of @closure. + * + * The #cairo_scaled_font_subset_t object contains the scaled_font, + * the font_id, and the subset_id corresponding to all glyphs + * belonging to the subset. In addition, it contains an array providing + * a mapping between subset glyph indices and the original scaled font + * glyph indices. + * + * The index of the array corresponds to subset_glyph_index values + * returned by _cairo_scaled_font_subsets_map_glyph() while the + * values of the array correspond to the scaled_font_glyph_index + * values passed as input to the same function. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, or a non-zero + * value indicating an error. Possible errors include + * %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_status_t +_cairo_scaled_font_subsets_foreach_unscaled (cairo_scaled_font_subsets_t *font_subsets, + cairo_scaled_font_subset_callback_func_t font_subset_callback, + void *closure); + +/** + * _cairo_scaled_font_subset_create_glyph_names: + * @font_subsets: a #cairo_scaled_font_subsets_t + * + * Create an array of strings containing the glyph name for each glyph + * in @font_subsets. The array as store in font_subsets->glyph_names. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, + * %CAIRO_INT_STATUS_UNSUPPORTED if the font backend does not support + * mapping the glyph indices to unicode characters. Possible errors + * include %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_int_status_t +_cairo_scaled_font_subset_create_glyph_names (cairo_scaled_font_subset_t *subset); + +typedef struct _cairo_cff_subset { + char *family_name_utf8; + char *ps_name; + double *widths; + double x_min, y_min, x_max, y_max; + double ascent, descent; + char *data; + unsigned long data_length; +} cairo_cff_subset_t; + +/** + * _cairo_cff_subset_init: + * @cff_subset: a #cairo_cff_subset_t to initialize + * @font_subset: the #cairo_scaled_font_subset_t to initialize from + * + * If possible (depending on the format of the underlying + * #cairo_scaled_font_t and the font backend in use) generate a + * cff file corresponding to @font_subset and initialize + * @cff_subset with information about the subset and the cff + * data. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, + * %CAIRO_INT_STATUS_UNSUPPORTED if the font can't be subset as a + * cff file, or an non-zero value indicating an error. Possible + * errors include %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_status_t +_cairo_cff_subset_init (cairo_cff_subset_t *cff_subset, + const char *name, + cairo_scaled_font_subset_t *font_subset); + +/** + * _cairo_cff_subset_fini: + * @cff_subset: a #cairo_cff_subset_t + * + * Free all resources associated with @cff_subset. After this + * call, @cff_subset should not be used again without a + * subsequent call to _cairo_cff_subset_init() again first. + **/ +cairo_private void +_cairo_cff_subset_fini (cairo_cff_subset_t *cff_subset); + +/** + * _cairo_cff_scaled_font_is_cid_cff: + * @scaled_font: a #cairo_scaled_font_t + * + * Return %TRUE if @scaled_font is a CID CFF font, otherwise return %FALSE. + **/ +cairo_private cairo_bool_t +_cairo_cff_scaled_font_is_cid_cff (cairo_scaled_font_t *scaled_font); + +/** + * _cairo_cff_fallback_init: + * @cff_subset: a #cairo_cff_subset_t to initialize + * @font_subset: the #cairo_scaled_font_subset_t to initialize from + * + * If possible (depending on the format of the underlying + * #cairo_scaled_font_t and the font backend in use) generate a cff + * file corresponding to @font_subset and initialize @cff_subset + * with information about the subset and the cff data. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, + * %CAIRO_INT_STATUS_UNSUPPORTED if the font can't be subset as a + * cff file, or an non-zero value indicating an error. Possible + * errors include %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_status_t +_cairo_cff_fallback_init (cairo_cff_subset_t *cff_subset, + const char *name, + cairo_scaled_font_subset_t *font_subset); + +/** + * _cairo_cff_fallback_fini: + * @cff_subset: a #cairo_cff_subset_t + * + * Free all resources associated with @cff_subset. After this + * call, @cff_subset should not be used again without a + * subsequent call to _cairo_cff_subset_init() again first. + **/ +cairo_private void +_cairo_cff_fallback_fini (cairo_cff_subset_t *cff_subset); + +typedef struct _cairo_truetype_subset { + char *family_name_utf8; + char *ps_name; + double *widths; + double x_min, y_min, x_max, y_max; + double ascent, descent; + unsigned char *data; + unsigned long data_length; + unsigned long *string_offsets; + unsigned long num_string_offsets; +} cairo_truetype_subset_t; + +/** + * _cairo_truetype_subset_init_ps: + * @truetype_subset: a #cairo_truetype_subset_t to initialize + * @font_subset: the #cairo_scaled_font_subset_t to initialize from + * + * If possible (depending on the format of the underlying + * #cairo_scaled_font_t and the font backend in use) generate a + * truetype file corresponding to @font_subset and initialize + * @truetype_subset with information about the subset and the truetype + * data. The generated font will be suitable for embedding in + * PostScript. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, + * %CAIRO_INT_STATUS_UNSUPPORTED if the font can't be subset as a + * truetype file, or an non-zero value indicating an error. Possible + * errors include %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_status_t +_cairo_truetype_subset_init_ps (cairo_truetype_subset_t *truetype_subset, + cairo_scaled_font_subset_t *font_subset); + +/** + * _cairo_truetype_subset_init_pdf: + * @truetype_subset: a #cairo_truetype_subset_t to initialize + * @font_subset: the #cairo_scaled_font_subset_t to initialize from + * + * If possible (depending on the format of the underlying + * #cairo_scaled_font_t and the font backend in use) generate a + * truetype file corresponding to @font_subset and initialize + * @truetype_subset with information about the subset and the truetype + * data. The generated font will be suitable for embedding in + * PDF. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, + * %CAIRO_INT_STATUS_UNSUPPORTED if the font can't be subset as a + * truetype file, or an non-zero value indicating an error. Possible + * errors include %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_status_t +_cairo_truetype_subset_init_pdf (cairo_truetype_subset_t *truetype_subset, + cairo_scaled_font_subset_t *font_subset); + +/** + * _cairo_truetype_subset_fini: + * @truetype_subset: a #cairo_truetype_subset_t + * + * Free all resources associated with @truetype_subset. After this + * call, @truetype_subset should not be used again without a + * subsequent call to _cairo_truetype_subset_init() again first. + **/ +cairo_private void +_cairo_truetype_subset_fini (cairo_truetype_subset_t *truetype_subset); + +cairo_private const char * +_cairo_ps_standard_encoding_to_glyphname (int glyph); + +cairo_private int +_cairo_unicode_to_winansi (unsigned long unicode); + +cairo_private const char * +_cairo_winansi_to_glyphname (int glyph); + +typedef struct _cairo_type1_subset { + char *base_font; + double *widths; + double x_min, y_min, x_max, y_max; + double ascent, descent; + char *data; + unsigned long header_length; + unsigned long data_length; + unsigned long trailer_length; +} cairo_type1_subset_t; + + +/** + * _cairo_type1_subset_init: + * @type1_subset: a #cairo_type1_subset_t to initialize + * @font_subset: the #cairo_scaled_font_subset_t to initialize from + * @hex_encode: if true the encrypted portion of the font is hex encoded + * + * If possible (depending on the format of the underlying + * #cairo_scaled_font_t and the font backend in use) generate a type1 + * file corresponding to @font_subset and initialize @type1_subset + * with information about the subset and the type1 data. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, + * %CAIRO_INT_STATUS_UNSUPPORTED if the font can't be subset as a type1 + * file, or an non-zero value indicating an error. Possible errors + * include %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_status_t +_cairo_type1_subset_init (cairo_type1_subset_t *type_subset, + const char *name, + cairo_scaled_font_subset_t *font_subset, + cairo_bool_t hex_encode); + +/** + * _cairo_type1_subset_fini: + * @type1_subset: a #cairo_type1_subset_t + * + * Free all resources associated with @type1_subset. After this call, + * @type1_subset should not be used again without a subsequent call to + * _cairo_truetype_type1_init() again first. + **/ +cairo_private void +_cairo_type1_subset_fini (cairo_type1_subset_t *subset); + +/** + * _cairo_type1_scaled_font_is_type1: + * @scaled_font: a #cairo_scaled_font_t + * + * Return %TRUE if @scaled_font is a Type 1 font, otherwise return %FALSE. + **/ +cairo_private cairo_bool_t +_cairo_type1_scaled_font_is_type1 (cairo_scaled_font_t *scaled_font); + +/** + * _cairo_type1_fallback_init_binary: + * @type1_subset: a #cairo_type1_subset_t to initialize + * @font_subset: the #cairo_scaled_font_subset_t to initialize from + * + * If possible (depending on the format of the underlying + * #cairo_scaled_font_t and the font backend in use) generate a type1 + * file corresponding to @font_subset and initialize @type1_subset + * with information about the subset and the type1 data. The encrypted + * part of the font is binary encoded. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, + * %CAIRO_INT_STATUS_UNSUPPORTED if the font can't be subset as a type1 + * file, or an non-zero value indicating an error. Possible errors + * include %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_status_t +_cairo_type1_fallback_init_binary (cairo_type1_subset_t *type_subset, + const char *name, + cairo_scaled_font_subset_t *font_subset); + +/** + * _cairo_type1_fallback_init_hex: + * @type1_subset: a #cairo_type1_subset_t to initialize + * @font_subset: the #cairo_scaled_font_subset_t to initialize from + * + * If possible (depending on the format of the underlying + * #cairo_scaled_font_t and the font backend in use) generate a type1 + * file corresponding to @font_subset and initialize @type1_subset + * with information about the subset and the type1 data. The encrypted + * part of the font is hex encoded. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, + * %CAIRO_INT_STATUS_UNSUPPORTED if the font can't be subset as a type1 + * file, or an non-zero value indicating an error. Possible errors + * include %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_status_t +_cairo_type1_fallback_init_hex (cairo_type1_subset_t *type_subset, + const char *name, + cairo_scaled_font_subset_t *font_subset); + +/** + * _cairo_type1_fallback_fini: + * @type1_subset: a #cairo_type1_subset_t + * + * Free all resources associated with @type1_subset. After this call, + * @type1_subset should not be used again without a subsequent call to + * _cairo_truetype_type1_init() again first. + **/ +cairo_private void +_cairo_type1_fallback_fini (cairo_type1_subset_t *subset); + +typedef struct _cairo_type2_charstrings { + int *widths; + long x_min, y_min, x_max, y_max; + long ascent, descent; + cairo_array_t charstrings; +} cairo_type2_charstrings_t; + +/** + * _cairo_type2_charstrings_init: + * @type2_subset: a #cairo_type2_subset_t to initialize + * @font_subset: the #cairo_scaled_font_subset_t to initialize from + * + * If possible (depending on the format of the underlying + * #cairo_scaled_font_t and the font backend in use) generate type2 + * charstrings to @font_subset and initialize @type2_subset + * with information about the subset. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, + * %CAIRO_INT_STATUS_UNSUPPORTED if the font can't be subset as a type2 + * charstrings, or an non-zero value indicating an error. Possible errors + * include %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_status_t +_cairo_type2_charstrings_init (cairo_type2_charstrings_t *charstrings, + cairo_scaled_font_subset_t *font_subset); + +/** + * _cairo_type2_charstrings_fini: + * @subset: a #cairo_type2_charstrings_t + * + * Free all resources associated with @type2_charstring. After this call, + * @type2_charstring should not be used again without a subsequent call to + * _cairo_type2_charstring_init() again first. + **/ +cairo_private void +_cairo_type2_charstrings_fini (cairo_type2_charstrings_t *charstrings); + +/** + * _cairo_truetype_index_to_ucs4: + * @scaled_font: the #cairo_scaled_font_t + * @index: the glyph index + * @ucs4: return value for the unicode value of the glyph + * + * If possible (depending on the format of the underlying + * #cairo_scaled_font_t and the font backend in use) assign + * the unicode character of the glyph to @ucs4. + * + * If mapping glyph indices to unicode is supported but the unicode + * value of the specified glyph is not available, @ucs4 is set to -1. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, + * %CAIRO_INT_STATUS_UNSUPPORTED if mapping glyph indices to unicode + * is not supported. Possible errors include %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_int_status_t +_cairo_truetype_index_to_ucs4 (cairo_scaled_font_t *scaled_font, + unsigned long index, + uint32_t *ucs4); + +/** + * _cairo_truetype_read_font_name: + * @scaled_font: the #cairo_scaled_font_t + * @ps_name: returns the PostScript name of the font + * or %NULL if the name could not be found. + * @font_name: returns the font name or %NULL if the name could not be found. + * + * If possible (depending on the format of the underlying + * #cairo_scaled_font_t and the font backend in use) read the + * PostScript and Font names from a TrueType/OpenType font. + * + * The font name is the full name of the font eg "DejaVu Sans Bold". + * The PostScript name is a shortened name with spaces removed + * suitable for use as the font name in a PS or PDF file eg + * "DejaVuSans-Bold". + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, + * %CAIRO_INT_STATUS_UNSUPPORTED if the font is not TrueType/OpenType + * or the name table is not present. Possible errors include + * %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_int_status_t +_cairo_truetype_read_font_name (cairo_scaled_font_t *scaled_font, + char **ps_name, + char **font_name); + +/** + * _cairo_truetype_get_style: + * @scaled_font: the #cairo_scaled_font_t + * @weight: returns the font weight from the OS/2 table + * @bold: returns true if font is bold + * @italic: returns true if font is italic + * + * If the font is a truetype/opentype font with an OS/2 table, get the + * weight, bold, and italic data from the OS/2 table. The weight + * values have the same meaning as the lfWeight field of the Windows + * LOGFONT structure. Refer to the TrueType Specification for + * definition of the weight values. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful, + * %CAIRO_INT_STATUS_UNSUPPORTED if the font is not TrueType/OpenType + * or the OS/2 table is not present. + **/ +cairo_private cairo_int_status_t +_cairo_truetype_get_style (cairo_scaled_font_t *scaled_font, + int *weight, + cairo_bool_t *bold, + cairo_bool_t *italic); + +/** + * _cairo_escape_ps_name: + * @ps_name: returns the PostScript name with all invalid characters escaped + * + * Ensure that PostSript name is a valid PDF/PostSript name object. + * In PDF names are treated as UTF8 and non ASCII bytes, ' ', + * and '#' are encoded as '#' followed by 2 hex digits that + * encode the byte. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful. Possible errors include + * %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_private cairo_int_status_t +_cairo_escape_ps_name (char **ps_name); + +#if DEBUG_SUBSETS +cairo_private void +dump_scaled_font_subsets (cairo_scaled_font_subsets_t *font_subsets); +#endif + +CAIRO_END_DECLS + + +#endif /* CAIRO_HAS_FONT_SUBSET */ + +#endif /* CAIRO_SCALED_FONT_SUBSETS_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-scaled-font-subsets.c b/local/recipes/libs/cairo/source/src/cairo-scaled-font-subsets.c new file mode 100644 index 0000000000..f15f819a02 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-scaled-font-subsets.c @@ -0,0 +1,1375 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2003 University of Southern California + * Copyright © 2005 Red Hat, Inc + * Copyright © 2006 Keith Packard + * Copyright © 2006 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Kristian Høgsberg + * Keith Packard + * Adrian Johnson + */ + +#define _DEFAULT_SOURCE /* for snprintf(), strdup() */ +#include "cairoint.h" +#include "cairo-error-private.h" + +#if CAIRO_HAS_FONT_SUBSET + +#include "cairo-scaled-font-subsets-private.h" +#include "cairo-user-font-private.h" + +#define MAX_GLYPHS_PER_SIMPLE_FONT 256 +#define MAX_GLYPHS_PER_COMPOSITE_FONT 65536 + +typedef enum { + CAIRO_SUBSETS_SCALED, + CAIRO_SUBSETS_SIMPLE, + CAIRO_SUBSETS_COMPOSITE +} cairo_subsets_type_t; + +typedef enum { + CAIRO_SUBSETS_FOREACH_UNSCALED, + CAIRO_SUBSETS_FOREACH_SCALED, +} cairo_subsets_foreach_type_t; + +typedef struct _cairo_sub_font { + cairo_hash_entry_t base; + + cairo_bool_t is_scaled; + cairo_bool_t is_composite; + cairo_bool_t use_latin_subset; + cairo_bool_t reserve_notdef; + cairo_scaled_font_subsets_t *parent; + cairo_scaled_font_t *scaled_font; + unsigned int font_id; + + int current_subset; + int num_glyphs_in_current_subset; + int num_glyphs_in_latin_subset; + int max_glyphs_per_subset; + char latin_char_map[256]; + + cairo_hash_table_t *sub_font_glyphs; + struct _cairo_sub_font *next; +} cairo_sub_font_t; + +struct _cairo_scaled_font_subsets { + cairo_subsets_type_t type; + cairo_bool_t use_latin_subset; + + int max_glyphs_per_unscaled_subset_used; + cairo_hash_table_t *unscaled_sub_fonts; + cairo_sub_font_t *unscaled_sub_fonts_list; + cairo_sub_font_t *unscaled_sub_fonts_list_end; + + int max_glyphs_per_scaled_subset_used; + cairo_hash_table_t *scaled_sub_fonts; + cairo_sub_font_t *scaled_sub_fonts_list; + cairo_sub_font_t *scaled_sub_fonts_list_end; + + int num_sub_fonts; +}; + +typedef struct _cairo_sub_font_glyph { + cairo_hash_entry_t base; + + unsigned int subset_id; + unsigned int subset_glyph_index; + double x_advance; + double y_advance; + + cairo_bool_t is_latin; + int latin_character; + cairo_bool_t is_mapped; + uint32_t unicode; + char *utf8; + int utf8_len; +} cairo_sub_font_glyph_t; + +typedef struct _cairo_sub_font_collection { + unsigned long *glyphs; /* scaled_font_glyph_index */ + char **utf8; + unsigned int glyphs_size; + int *to_latin_char; + unsigned long *latin_to_subset_glyph_index; + unsigned int max_glyph; + unsigned int num_glyphs; + + unsigned int subset_id; + + cairo_status_t status; + cairo_scaled_font_subset_callback_func_t font_subset_callback; + void *font_subset_callback_closure; +} cairo_sub_font_collection_t; + +typedef struct _cairo_string_entry { + cairo_hash_entry_t base; + char *string; +} cairo_string_entry_t; + +static cairo_status_t +_cairo_sub_font_map_glyph (cairo_sub_font_t *sub_font, + unsigned long scaled_font_glyph_index, + const char * utf8, + int utf8_len, + cairo_scaled_font_subsets_glyph_t *subset_glyph); + +static void +_cairo_sub_font_glyph_init_key (cairo_sub_font_glyph_t *sub_font_glyph, + unsigned long scaled_font_glyph_index) +{ + sub_font_glyph->base.hash = scaled_font_glyph_index; +} + +static cairo_sub_font_glyph_t * +_cairo_sub_font_glyph_create (unsigned long scaled_font_glyph_index, + unsigned int subset_id, + unsigned int subset_glyph_index, + double x_advance, + double y_advance, + int latin_character, + uint32_t unicode, + char *utf8, + int utf8_len) +{ + cairo_sub_font_glyph_t *sub_font_glyph; + + sub_font_glyph = _cairo_calloc (sizeof (cairo_sub_font_glyph_t)); + if (unlikely (sub_font_glyph == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return NULL; + } + + _cairo_sub_font_glyph_init_key (sub_font_glyph, scaled_font_glyph_index); + sub_font_glyph->subset_id = subset_id; + sub_font_glyph->subset_glyph_index = subset_glyph_index; + sub_font_glyph->x_advance = x_advance; + sub_font_glyph->y_advance = y_advance; + sub_font_glyph->is_latin = (latin_character >= 0); + sub_font_glyph->latin_character = latin_character; + sub_font_glyph->is_mapped = FALSE; + sub_font_glyph->unicode = unicode; + sub_font_glyph->utf8 = utf8; + sub_font_glyph->utf8_len = utf8_len; + + return sub_font_glyph; +} + +static void +_cairo_sub_font_glyph_destroy (cairo_sub_font_glyph_t *sub_font_glyph) +{ + free (sub_font_glyph->utf8); + + free (sub_font_glyph); +} + +static void +_cairo_sub_font_glyph_pluck (void *entry, void *closure) +{ + cairo_sub_font_glyph_t *sub_font_glyph = entry; + cairo_hash_table_t *sub_font_glyphs = closure; + + _cairo_hash_table_remove (sub_font_glyphs, &sub_font_glyph->base); + _cairo_sub_font_glyph_destroy (sub_font_glyph); +} + +static void +_cairo_sub_font_glyph_collect (void *entry, void *closure) +{ + cairo_sub_font_glyph_t *sub_font_glyph = entry; + cairo_sub_font_collection_t *collection = closure; + unsigned long scaled_font_glyph_index; + unsigned int subset_glyph_index; + + if (sub_font_glyph->subset_id != collection->subset_id) + return; + + scaled_font_glyph_index = sub_font_glyph->base.hash; + subset_glyph_index = sub_font_glyph->subset_glyph_index; + + /* Ensure we don't exceed the allocated bounds. */ + assert (subset_glyph_index < collection->glyphs_size); + + collection->glyphs[subset_glyph_index] = scaled_font_glyph_index; + collection->utf8[subset_glyph_index] = sub_font_glyph->utf8; + collection->to_latin_char[subset_glyph_index] = sub_font_glyph->latin_character; + if (sub_font_glyph->is_latin) + collection->latin_to_subset_glyph_index[sub_font_glyph->latin_character] = subset_glyph_index; + + if (subset_glyph_index > collection->max_glyph) + collection->max_glyph = subset_glyph_index; + + collection->num_glyphs++; +} + +static cairo_bool_t +_cairo_sub_fonts_equal (const void *key_a, const void *key_b) +{ + const cairo_sub_font_t *sub_font_a = key_a; + const cairo_sub_font_t *sub_font_b = key_b; + cairo_scaled_font_t *a = sub_font_a->scaled_font; + cairo_scaled_font_t *b = sub_font_b->scaled_font; + + if (sub_font_a->is_scaled) + return a == b; + else + return a->font_face == b->font_face || a->original_font_face == b->original_font_face; +} + +static void +_cairo_sub_font_init_key (cairo_sub_font_t *sub_font, + cairo_scaled_font_t *scaled_font) +{ + if (sub_font->is_scaled) + { + sub_font->base.hash = (uintptr_t) scaled_font; + sub_font->scaled_font = scaled_font; + } + else + { + sub_font->base.hash = (uintptr_t) scaled_font->font_face; + sub_font->scaled_font = scaled_font; + } +} + +static cairo_status_t +_cairo_sub_font_create (cairo_scaled_font_subsets_t *parent, + cairo_scaled_font_t *scaled_font, + unsigned int font_id, + int max_glyphs_per_subset, + cairo_bool_t is_scaled, + cairo_bool_t is_composite, + cairo_sub_font_t **sub_font_out) +{ + cairo_sub_font_t *sub_font; + int i; + + sub_font = _cairo_calloc (sizeof (cairo_sub_font_t)); + if (unlikely (sub_font == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + sub_font->is_scaled = is_scaled; + sub_font->is_composite = is_composite; + sub_font->reserve_notdef = !sub_font->is_scaled; + _cairo_sub_font_init_key (sub_font, scaled_font); + + sub_font->parent = parent; + sub_font->scaled_font = scaled_font; + sub_font->font_id = font_id; + + sub_font->use_latin_subset = parent->use_latin_subset; + + /* latin subsets of Type 3 and CID CFF fonts are not supported */ + if (sub_font->is_scaled || + _cairo_cff_scaled_font_is_cid_cff (scaled_font) ) + { + sub_font->use_latin_subset = FALSE; + } + + if (sub_font->use_latin_subset) + sub_font->current_subset = 1; /* reserve subset 0 for latin glyphs */ + else + sub_font->current_subset = 0; + + sub_font->num_glyphs_in_current_subset = 0; + sub_font->num_glyphs_in_latin_subset = 0; + sub_font->max_glyphs_per_subset = max_glyphs_per_subset; + for (i = 0; i < 256; i++) + sub_font->latin_char_map[i] = FALSE; + + sub_font->sub_font_glyphs = _cairo_hash_table_create (NULL); + if (unlikely (sub_font->sub_font_glyphs == NULL)) { + free (sub_font); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + sub_font->next = NULL; + *sub_font_out = sub_font; + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_sub_font_destroy (cairo_sub_font_t *sub_font) +{ + _cairo_hash_table_foreach (sub_font->sub_font_glyphs, + _cairo_sub_font_glyph_pluck, + sub_font->sub_font_glyphs); + _cairo_hash_table_destroy (sub_font->sub_font_glyphs); + cairo_scaled_font_destroy (sub_font->scaled_font); + free (sub_font); +} + +static void +_cairo_sub_font_pluck (void *entry, void *closure) +{ + cairo_sub_font_t *sub_font = entry; + cairo_hash_table_t *sub_fonts = closure; + + _cairo_hash_table_remove (sub_fonts, &sub_font->base); + _cairo_sub_font_destroy (sub_font); +} + +/* Characters 0x80 to 0x9f in the winansi encoding. + * All other characters in the range 0x00 to 0xff map 1:1 to unicode */ +static unsigned int _winansi_0x80_to_0x9f[] = { + 0x20ac, 0x0000, 0x201a, 0x0192, 0x201e, 0x2026, 0x2020, 0x2021, + 0x02c6, 0x2030, 0x0160, 0x2039, 0x0152, 0x0000, 0x017d, 0x0000, + 0x0000, 0x2018, 0x2019, 0x201c, 0x201d, 0x2022, 0x2013, 0x2014, + 0x02dc, 0x2122, 0x0161, 0x203a, 0x0153, 0x0000, 0x017e, 0x0178 +}; + +int +_cairo_unicode_to_winansi (unsigned long uni) +{ + int i; + + /* exclude the extra "hyphen" at 0xad to avoid duplicate glyphnames */ + if ((uni >= 0x20 && uni <= 0x7e) || + (uni >= 0xa1 && uni <= 0xff && uni != 0xad) || + uni == 0) + return uni; + + for (i = 0; i < 32; i++) + if (_winansi_0x80_to_0x9f[i] == uni) + return i + 0x80; + + return -1; +} + +static cairo_status_t +_cairo_sub_font_glyph_lookup_unicode (cairo_scaled_font_t *scaled_font, + unsigned long scaled_font_glyph_index, + uint32_t *unicode_out, + char **utf8_out, + int *utf8_len_out) +{ + uint32_t unicode; + char buf[8]; + int len; + cairo_status_t status; + + /* Do a reverse lookup on the glyph index. unicode is -1 if the + * index could not be mapped to a unicode character. */ + unicode = -1; + status = _cairo_truetype_index_to_ucs4 (scaled_font, + scaled_font_glyph_index, + &unicode); + if (_cairo_status_is_error (status)) + return status; + + if (unicode == (uint32_t)-1 && scaled_font->backend->index_to_ucs4) { + status = scaled_font->backend->index_to_ucs4 (scaled_font, + scaled_font_glyph_index, + &unicode); + if (unlikely (status)) + return status; + } + + *unicode_out = unicode; + *utf8_out = NULL; + *utf8_len_out = 0; + if (unicode != (uint32_t) -1) { + len = _cairo_ucs4_to_utf8 (unicode, buf); + if (len > 0) { + *utf8_out = _cairo_strndup (buf, len); + if (unlikely (*utf8_out == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + *utf8_len_out = len; + } + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_sub_font_glyph_map_to_unicode (cairo_sub_font_glyph_t *sub_font_glyph, + const char *utf8, + int utf8_len, + cairo_bool_t *is_mapped) +{ + *is_mapped = FALSE; + + if (utf8_len < 0) + return CAIRO_STATUS_SUCCESS; + + if (utf8 != NULL && utf8_len != 0 && utf8[utf8_len - 1] == '\0') + utf8_len--; + + if (utf8 != NULL && utf8_len != 0) { + if (sub_font_glyph->utf8 != NULL) { + if (utf8_len == sub_font_glyph->utf8_len && + strncmp (utf8, sub_font_glyph->utf8, utf8_len) == 0) + { + /* Requested utf8 mapping matches the existing mapping */ + *is_mapped = TRUE; + } + } else { + /* No existing mapping. Use the requested mapping */ + sub_font_glyph->utf8 = _cairo_strndup (utf8, utf8_len); + if (unlikely (sub_font_glyph->utf8 == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + sub_font_glyph->utf8_len = utf8_len; + *is_mapped = TRUE; + } + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_sub_font_lookup_glyph (cairo_sub_font_t *sub_font, + unsigned long scaled_font_glyph_index, + const char *utf8, + int utf8_len, + cairo_scaled_font_subsets_glyph_t *subset_glyph) +{ + cairo_sub_font_glyph_t key, *sub_font_glyph; + cairo_int_status_t status; + + _cairo_sub_font_glyph_init_key (&key, scaled_font_glyph_index); + sub_font_glyph = _cairo_hash_table_lookup (sub_font->sub_font_glyphs, + &key.base); + if (sub_font_glyph != NULL) { + subset_glyph->font_id = sub_font->font_id; + subset_glyph->subset_id = sub_font_glyph->subset_id; + if (sub_font_glyph->is_latin) + subset_glyph->subset_glyph_index = sub_font_glyph->latin_character; + else + subset_glyph->subset_glyph_index = sub_font_glyph->subset_glyph_index; + + subset_glyph->is_scaled = sub_font->is_scaled; + subset_glyph->is_composite = sub_font->is_composite; + subset_glyph->is_latin = sub_font_glyph->is_latin; + subset_glyph->x_advance = sub_font_glyph->x_advance; + subset_glyph->y_advance = sub_font_glyph->y_advance; + status = _cairo_sub_font_glyph_map_to_unicode (sub_font_glyph, + utf8, utf8_len, + &subset_glyph->utf8_is_mapped); + subset_glyph->unicode = sub_font_glyph->unicode; + + return status; + } + + return CAIRO_INT_STATUS_UNSUPPORTED; +} + +static cairo_status_t +_cairo_sub_font_add_glyph (cairo_sub_font_t *sub_font, + unsigned long scaled_font_glyph_index, + cairo_bool_t is_latin, + int latin_character, + uint32_t unicode, + char *utf8, + int utf8_len, + cairo_sub_font_glyph_t **sub_font_glyph_out) +{ + cairo_scaled_glyph_t *scaled_glyph; + cairo_sub_font_glyph_t *sub_font_glyph; + int *num_glyphs_in_subset_ptr; + double x_advance; + double y_advance; + cairo_int_status_t status; + + _cairo_scaled_font_freeze_cache (sub_font->scaled_font); + status = _cairo_scaled_glyph_lookup (sub_font->scaled_font, + scaled_font_glyph_index, + CAIRO_SCALED_GLYPH_INFO_METRICS, + NULL, /* foreground color */ + &scaled_glyph); + assert (status != CAIRO_INT_STATUS_UNSUPPORTED); + if (unlikely (status)) { + _cairo_scaled_font_thaw_cache (sub_font->scaled_font); + return status; + } + + x_advance = scaled_glyph->metrics.x_advance; + y_advance = scaled_glyph->metrics.y_advance; + _cairo_scaled_font_thaw_cache (sub_font->scaled_font); + + if (!is_latin && sub_font->num_glyphs_in_current_subset == sub_font->max_glyphs_per_subset) + { + sub_font->current_subset++; + sub_font->num_glyphs_in_current_subset = 0; + } + + if (is_latin) + num_glyphs_in_subset_ptr = &sub_font->num_glyphs_in_latin_subset; + else + num_glyphs_in_subset_ptr = &sub_font->num_glyphs_in_current_subset; + + if ((*num_glyphs_in_subset_ptr == 0) && sub_font->reserve_notdef) + (*num_glyphs_in_subset_ptr)++; + + sub_font_glyph = _cairo_sub_font_glyph_create (scaled_font_glyph_index, + is_latin ? 0 : sub_font->current_subset, + *num_glyphs_in_subset_ptr, + x_advance, + y_advance, + is_latin ? latin_character : -1, + unicode, + utf8, + utf8_len); + + if (unlikely (sub_font_glyph == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_hash_table_insert (sub_font->sub_font_glyphs, &sub_font_glyph->base); + if (unlikely (status)) { + _cairo_sub_font_glyph_destroy (sub_font_glyph); + return status; + } + + (*num_glyphs_in_subset_ptr)++; + if (sub_font->is_scaled) { + if (*num_glyphs_in_subset_ptr > sub_font->parent->max_glyphs_per_scaled_subset_used) + sub_font->parent->max_glyphs_per_scaled_subset_used = *num_glyphs_in_subset_ptr; + } else { + if (*num_glyphs_in_subset_ptr > sub_font->parent->max_glyphs_per_unscaled_subset_used) + sub_font->parent->max_glyphs_per_unscaled_subset_used = *num_glyphs_in_subset_ptr; + } + + *sub_font_glyph_out = sub_font_glyph; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_sub_font_map_glyph (cairo_sub_font_t *sub_font, + unsigned long scaled_font_glyph_index, + const char *text_utf8, + int text_utf8_len, + cairo_scaled_font_subsets_glyph_t *subset_glyph) +{ + cairo_sub_font_glyph_t key, *sub_font_glyph; + cairo_status_t status; + + _cairo_sub_font_glyph_init_key (&key, scaled_font_glyph_index); + sub_font_glyph = _cairo_hash_table_lookup (sub_font->sub_font_glyphs, + &key.base); + if (sub_font_glyph == NULL) { + uint32_t font_unicode; + char *font_utf8; + int font_utf8_len; + cairo_bool_t is_latin; + int latin_character; + + status = _cairo_sub_font_glyph_lookup_unicode (sub_font->scaled_font, + scaled_font_glyph_index, + &font_unicode, + &font_utf8, + &font_utf8_len); + if (unlikely(status)) + return status; + + /* If the supplied utf8 is a valid single character, use it + * instead of the font lookup */ + if (text_utf8 != NULL && text_utf8_len > 0) { + uint32_t *ucs4; + int ucs4_len; + + status = _cairo_utf8_to_ucs4 (text_utf8, text_utf8_len, + &ucs4, &ucs4_len); + if (status == CAIRO_STATUS_SUCCESS) { + if (ucs4_len == 1) { + font_unicode = ucs4[0]; + free (font_utf8); + font_utf8 = _cairo_strndup (text_utf8, text_utf8_len); + if (font_utf8 == NULL) { + free (ucs4); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + font_utf8_len = text_utf8_len; + } + free (ucs4); + } + } + + /* If glyph is in the winansi encoding and font is not a scaled + * font, put glyph in the latin subset. */ + is_latin = FALSE; + latin_character = -1; + if (sub_font->use_latin_subset && !sub_font->is_scaled) + { + latin_character = _cairo_unicode_to_winansi (font_unicode); + if (latin_character > 0) + { + if (!sub_font->latin_char_map[latin_character]) { + sub_font->latin_char_map[latin_character] = TRUE; + is_latin = TRUE; + } + } + } + + status = _cairo_sub_font_add_glyph (sub_font, + scaled_font_glyph_index, + is_latin, + latin_character, + font_unicode, + font_utf8, + font_utf8_len, + &sub_font_glyph); + if (unlikely(status)) + return status; + } + + subset_glyph->font_id = sub_font->font_id; + subset_glyph->subset_id = sub_font_glyph->subset_id; + if (sub_font_glyph->is_latin) + subset_glyph->subset_glyph_index = sub_font_glyph->latin_character; + else + subset_glyph->subset_glyph_index = sub_font_glyph->subset_glyph_index; + + subset_glyph->is_scaled = sub_font->is_scaled; + subset_glyph->is_composite = sub_font->is_composite; + subset_glyph->is_latin = sub_font_glyph->is_latin; + subset_glyph->x_advance = sub_font_glyph->x_advance; + subset_glyph->y_advance = sub_font_glyph->y_advance; + status = _cairo_sub_font_glyph_map_to_unicode (sub_font_glyph, + text_utf8, text_utf8_len, + &subset_glyph->utf8_is_mapped); + subset_glyph->unicode = sub_font_glyph->unicode; + + return status; +} + +static void +_cairo_sub_font_collect (void *entry, void *closure) +{ + cairo_sub_font_t *sub_font = entry; + cairo_sub_font_collection_t *collection = closure; + cairo_scaled_font_subset_t subset; + int i; + unsigned int j; + + if (collection->status) + return; + + collection->status = sub_font->scaled_font->status; + if (collection->status) + return; + + for (i = 0; i <= sub_font->current_subset; i++) { + collection->subset_id = i; + collection->num_glyphs = 0; + collection->max_glyph = 0; + memset (collection->latin_to_subset_glyph_index, 0, 256*sizeof(unsigned long)); + + if (sub_font->reserve_notdef) { + // add .notdef + collection->glyphs[0] = 0; + collection->utf8[0] = 0; + collection->to_latin_char[0] = 0; + collection->latin_to_subset_glyph_index[0] = 0; + collection->num_glyphs++; + } + + _cairo_hash_table_foreach (sub_font->sub_font_glyphs, + _cairo_sub_font_glyph_collect, collection); + if (collection->status) + break; + + if (collection->num_glyphs == 0) + continue; + + if (sub_font->reserve_notdef && collection->num_glyphs == 1) + continue; + + /* Ensure the resulting array has no uninitialized holes */ + assert (collection->num_glyphs == collection->max_glyph + 1); + + subset.scaled_font = sub_font->scaled_font; + subset.is_composite = sub_font->is_composite; + subset.is_scaled = sub_font->is_scaled; + subset.font_id = sub_font->font_id; + subset.subset_id = i; + subset.glyphs = collection->glyphs; + subset.utf8 = collection->utf8; + subset.num_glyphs = collection->num_glyphs; + subset.glyph_names = NULL; + + subset.is_latin = FALSE; + if (sub_font->use_latin_subset && i == 0) { + subset.is_latin = TRUE; + subset.to_latin_char = collection->to_latin_char; + subset.latin_to_subset_glyph_index = collection->latin_to_subset_glyph_index; + } else { + subset.to_latin_char = NULL; + subset.latin_to_subset_glyph_index = NULL; + } + + collection->status = (collection->font_subset_callback) (&subset, + collection->font_subset_callback_closure); + + if (subset.glyph_names != NULL) { + for (j = 0; j < collection->num_glyphs; j++) + free (subset.glyph_names[j]); + free (subset.glyph_names); + } + + if (collection->status) + break; + } +} + +static cairo_scaled_font_subsets_t * +_cairo_scaled_font_subsets_create_internal (cairo_subsets_type_t type) +{ + cairo_scaled_font_subsets_t *subsets; + + subsets = _cairo_calloc (sizeof (cairo_scaled_font_subsets_t)); + if (unlikely (subsets == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return NULL; + } + + subsets->type = type; + subsets->use_latin_subset = FALSE; + subsets->max_glyphs_per_unscaled_subset_used = 0; + subsets->max_glyphs_per_scaled_subset_used = 0; + subsets->num_sub_fonts = 0; + + subsets->unscaled_sub_fonts = _cairo_hash_table_create (_cairo_sub_fonts_equal); + if (! subsets->unscaled_sub_fonts) { + free (subsets); + return NULL; + } + subsets->unscaled_sub_fonts_list = NULL; + subsets->unscaled_sub_fonts_list_end = NULL; + + subsets->scaled_sub_fonts = _cairo_hash_table_create (_cairo_sub_fonts_equal); + if (! subsets->scaled_sub_fonts) { + _cairo_hash_table_destroy (subsets->unscaled_sub_fonts); + free (subsets); + return NULL; + } + subsets->scaled_sub_fonts_list = NULL; + subsets->scaled_sub_fonts_list_end = NULL; + + return subsets; +} + +cairo_scaled_font_subsets_t * +_cairo_scaled_font_subsets_create_scaled (void) +{ + return _cairo_scaled_font_subsets_create_internal (CAIRO_SUBSETS_SCALED); +} + +cairo_scaled_font_subsets_t * +_cairo_scaled_font_subsets_create_simple (void) +{ + return _cairo_scaled_font_subsets_create_internal (CAIRO_SUBSETS_SIMPLE); +} + +cairo_scaled_font_subsets_t * +_cairo_scaled_font_subsets_create_composite (void) +{ + return _cairo_scaled_font_subsets_create_internal (CAIRO_SUBSETS_COMPOSITE); +} + +void +_cairo_scaled_font_subsets_destroy (cairo_scaled_font_subsets_t *subsets) +{ + _cairo_hash_table_foreach (subsets->scaled_sub_fonts, _cairo_sub_font_pluck, subsets->scaled_sub_fonts); + _cairo_hash_table_destroy (subsets->scaled_sub_fonts); + + _cairo_hash_table_foreach (subsets->unscaled_sub_fonts, _cairo_sub_font_pluck, subsets->unscaled_sub_fonts); + _cairo_hash_table_destroy (subsets->unscaled_sub_fonts); + + free (subsets); +} + +void +_cairo_scaled_font_subsets_enable_latin_subset (cairo_scaled_font_subsets_t *font_subsets, + cairo_bool_t use_latin) +{ + font_subsets->use_latin_subset = use_latin; +} + +cairo_status_t +_cairo_scaled_font_subsets_map_glyph (cairo_scaled_font_subsets_t *subsets, + cairo_scaled_font_t *scaled_font, + unsigned long scaled_font_glyph_index, + const char * utf8, + int utf8_len, + cairo_scaled_font_subsets_glyph_t *subset_glyph) +{ + cairo_sub_font_t key, *sub_font; + cairo_scaled_glyph_t *scaled_glyph; + cairo_font_face_t *font_face; + cairo_matrix_t identity; + cairo_font_options_t font_options; + cairo_scaled_font_t *unscaled_font; + cairo_int_status_t status; + int max_glyphs; + cairo_bool_t type1_font; + cairo_bool_t has_path; + cairo_bool_t has_color; + cairo_bool_t is_user; + + /* Lookup glyph in unscaled subsets */ + if (subsets->type != CAIRO_SUBSETS_SCALED) { + key.is_scaled = FALSE; + _cairo_sub_font_init_key (&key, scaled_font); + sub_font = _cairo_hash_table_lookup (subsets->unscaled_sub_fonts, + &key.base); + if (sub_font != NULL) { + status = _cairo_sub_font_lookup_glyph (sub_font, + scaled_font_glyph_index, + utf8, utf8_len, + subset_glyph); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + } + } + + /* Lookup glyph in scaled subsets */ + key.is_scaled = TRUE; + _cairo_sub_font_init_key (&key, scaled_font); + sub_font = _cairo_hash_table_lookup (subsets->scaled_sub_fonts, + &key.base); + if (sub_font != NULL) { + status = _cairo_sub_font_lookup_glyph (sub_font, + scaled_font_glyph_index, + utf8, utf8_len, + subset_glyph); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + } + + /* Glyph not found. Determine whether the glyph is outline or + * bitmap and add to the appropriate subset. + */ + is_user = _cairo_font_face_is_user (scaled_font->font_face); + _cairo_scaled_font_freeze_cache (scaled_font); + /* Check if glyph is color */ + status = _cairo_scaled_glyph_lookup (scaled_font, + scaled_font_glyph_index, + CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + has_color = (status == CAIRO_INT_STATUS_SUCCESS); + + /* Check if glyph has a path */ + status = _cairo_scaled_glyph_lookup (scaled_font, + scaled_font_glyph_index, + CAIRO_SCALED_GLYPH_INFO_PATH, + NULL, /* foreground color */ + &scaled_glyph); + has_path = (status == CAIRO_INT_STATUS_SUCCESS); + + /* glyph_index 0 (the .notdef glyph) is a special case. Some fonts + * will return CAIRO_INT_STATUS_UNSUPPORTED when doing a + * _scaled_glyph_lookup(_GLYPH_INFO_PATH). Type1-fallback creates + * empty glyphs in this case so we can put the glyph in a unscaled + * subset. + */ + if (scaled_font_glyph_index == 0 && !is_user) + has_path = TRUE; + + /* If this fails there is nothing we can do with this glyph. */ + status = _cairo_scaled_glyph_lookup (scaled_font, + scaled_font_glyph_index, + CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + _cairo_scaled_font_thaw_cache (scaled_font); + if (_cairo_int_status_is_error (status)) + return status; + + /* Type 3 glyphs (is_user and has_color) must be added to scaled subset */ + if (subsets->type != CAIRO_SUBSETS_SCALED && + has_path && !has_color && !is_user) + { + /* Path available. Add to unscaled subset. */ + key.is_scaled = FALSE; + _cairo_sub_font_init_key (&key, scaled_font); + sub_font = _cairo_hash_table_lookup (subsets->unscaled_sub_fonts, + &key.base); + if (sub_font == NULL) { + font_face = cairo_scaled_font_get_font_face (scaled_font); + cairo_matrix_init_identity (&identity); + _cairo_font_options_init_default (&font_options); + cairo_scaled_font_get_font_options (scaled_font, &font_options); + cairo_font_options_set_hint_style (&font_options, CAIRO_HINT_STYLE_NONE); + cairo_font_options_set_hint_metrics (&font_options, CAIRO_HINT_METRICS_OFF); + unscaled_font = cairo_scaled_font_create (font_face, + &identity, + &identity, + &font_options); + if (unlikely (unscaled_font->status)) + return unscaled_font->status; + + subset_glyph->is_scaled = FALSE; + type1_font = _cairo_type1_scaled_font_is_type1 (unscaled_font); + if (subsets->type == CAIRO_SUBSETS_COMPOSITE && !type1_font) { + max_glyphs = MAX_GLYPHS_PER_COMPOSITE_FONT; + subset_glyph->is_composite = TRUE; + } else { + max_glyphs = MAX_GLYPHS_PER_SIMPLE_FONT; + subset_glyph->is_composite = FALSE; + } + + status = _cairo_sub_font_create (subsets, + unscaled_font, + subsets->num_sub_fonts, + max_glyphs, + subset_glyph->is_scaled, + subset_glyph->is_composite, + &sub_font); + + if (unlikely (status)) { + cairo_scaled_font_destroy (unscaled_font); + return status; + } + + status = _cairo_hash_table_insert (subsets->unscaled_sub_fonts, + &sub_font->base); + + if (unlikely (status)) { + _cairo_sub_font_destroy (sub_font); + return status; + } + if (!subsets->unscaled_sub_fonts_list) + subsets->unscaled_sub_fonts_list = sub_font; + else + subsets->unscaled_sub_fonts_list_end->next = sub_font; + subsets->unscaled_sub_fonts_list_end = sub_font; + subsets->num_sub_fonts++; + } + } else { + /* No path available. Add to scaled subset. */ + key.is_scaled = TRUE; + _cairo_sub_font_init_key (&key, scaled_font); + sub_font = _cairo_hash_table_lookup (subsets->scaled_sub_fonts, + &key.base); + if (sub_font == NULL) { + subset_glyph->is_scaled = TRUE; + subset_glyph->is_composite = FALSE; + if (subsets->type == CAIRO_SUBSETS_SCALED) + max_glyphs = INT_MAX; + else + max_glyphs = MAX_GLYPHS_PER_SIMPLE_FONT; + + status = _cairo_sub_font_create (subsets, + cairo_scaled_font_reference (scaled_font), + subsets->num_sub_fonts, + max_glyphs, + subset_glyph->is_scaled, + subset_glyph->is_composite, + &sub_font); + if (unlikely (status)) { + cairo_scaled_font_destroy (scaled_font); + return status; + } + + status = _cairo_hash_table_insert (subsets->scaled_sub_fonts, + &sub_font->base); + if (unlikely (status)) { + _cairo_sub_font_destroy (sub_font); + return status; + } + if (!subsets->scaled_sub_fonts_list) + subsets->scaled_sub_fonts_list = sub_font; + else + subsets->scaled_sub_fonts_list_end->next = sub_font; + subsets->scaled_sub_fonts_list_end = sub_font; + subsets->num_sub_fonts++; + } + } + + return _cairo_sub_font_map_glyph (sub_font, + scaled_font_glyph_index, + utf8, utf8_len, + subset_glyph); +} + +static cairo_status_t +_cairo_scaled_font_subsets_foreach_internal (cairo_scaled_font_subsets_t *font_subsets, + cairo_scaled_font_subset_callback_func_t font_subset_callback, + void *closure, + cairo_subsets_foreach_type_t type) +{ + cairo_sub_font_collection_t collection; + cairo_sub_font_t *sub_font; + cairo_bool_t is_scaled; + + is_scaled = FALSE; + + if (type == CAIRO_SUBSETS_FOREACH_SCALED) + is_scaled = TRUE; + + if (is_scaled) + collection.glyphs_size = font_subsets->max_glyphs_per_scaled_subset_used; + else + collection.glyphs_size = font_subsets->max_glyphs_per_unscaled_subset_used; + + if (! collection.glyphs_size) + return CAIRO_STATUS_SUCCESS; + + collection.glyphs = _cairo_malloc_ab (collection.glyphs_size, sizeof(unsigned long)); + collection.utf8 = _cairo_malloc_ab (collection.glyphs_size, sizeof(char *)); + collection.to_latin_char = _cairo_malloc_ab (collection.glyphs_size, sizeof(int)); + collection.latin_to_subset_glyph_index = _cairo_malloc_ab (256, sizeof(unsigned long)); + if (unlikely (collection.glyphs == NULL || + collection.utf8 == NULL || + collection.to_latin_char == NULL || + collection.latin_to_subset_glyph_index == NULL)) { + free (collection.glyphs); + free (collection.utf8); + free (collection.to_latin_char); + free (collection.latin_to_subset_glyph_index); + + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + collection.font_subset_callback = font_subset_callback; + collection.font_subset_callback_closure = closure; + collection.status = CAIRO_STATUS_SUCCESS; + + if (is_scaled) + sub_font = font_subsets->scaled_sub_fonts_list; + else + sub_font = font_subsets->unscaled_sub_fonts_list; + + while (sub_font) { + _cairo_sub_font_collect (sub_font, &collection); + sub_font = sub_font->next; + } + free (collection.utf8); + free (collection.glyphs); + free (collection.to_latin_char); + free (collection.latin_to_subset_glyph_index); + + return collection.status; +} + +cairo_status_t +_cairo_scaled_font_subsets_foreach_scaled (cairo_scaled_font_subsets_t *font_subsets, + cairo_scaled_font_subset_callback_func_t font_subset_callback, + void *closure) +{ + return _cairo_scaled_font_subsets_foreach_internal (font_subsets, + font_subset_callback, + closure, + CAIRO_SUBSETS_FOREACH_SCALED); +} + +cairo_status_t +_cairo_scaled_font_subsets_foreach_unscaled (cairo_scaled_font_subsets_t *font_subsets, + cairo_scaled_font_subset_callback_func_t font_subset_callback, + void *closure) +{ + return _cairo_scaled_font_subsets_foreach_internal (font_subsets, + font_subset_callback, + closure, + CAIRO_SUBSETS_FOREACH_UNSCALED); +} + +static cairo_bool_t +_cairo_string_equal (const void *key_a, const void *key_b) +{ + const cairo_string_entry_t *a = key_a; + const cairo_string_entry_t *b = key_b; + + if (strcmp (a->string, b->string) == 0) + return TRUE; + else + return FALSE; +} + +#if DEBUG_SUBSETS + +static void +dump_glyph (void *entry, void *closure) +{ + cairo_sub_font_glyph_t *glyph = entry; + char buf[10]; + int i; + + printf(" font_glyph_index: %ld\n", glyph->base.hash); + printf(" subset_id: %d\n", glyph->subset_id); + printf(" subset_glyph_index: %d\n", glyph->subset_glyph_index); + printf(" x_advance: %f\n", glyph->x_advance); + printf(" y_advance: %f\n", glyph->y_advance); + printf(" is_latin: %d\n", glyph->is_latin); + printf(" latin_character: '%c' (0x%02x)\n", glyph->latin_character, glyph->latin_character); + printf(" is_latin: %d\n", glyph->is_latin); + printf(" is_mapped: %d\n", glyph->is_mapped); + printf(" unicode: U+%04x\n", glyph->unicode); + memset(buf, 0, sizeof(buf)); + memcpy(buf, glyph->utf8, glyph->utf8_len); + printf(" utf8: '%s'\n", buf); + printf(" utf8 (hex):"); + for (i = 0; i < glyph->utf8_len; i++) + printf(" 0x%02x", glyph->utf8[i]); + printf("\n\n"); +} + +static void +dump_subfont (cairo_sub_font_t *sub_font) +{ + while (sub_font) { + printf(" font_id: %d\n", sub_font->font_id); + printf(" current_subset: %d\n", sub_font->current_subset); + printf(" is_scaled: %d\n", sub_font->is_scaled); + printf(" is_composite: %d\n", sub_font->is_composite); + printf(" is_user: %d\n", sub_font->is_user); + printf(" use_latin_subset: %d\n", sub_font->use_latin_subset); + printf(" reserve_notdef: %d\n", sub_font->reserve_notdef); + printf(" num_glyphs_in_current_subset: %d\n", sub_font->num_glyphs_in_current_subset); + printf(" num_glyphs_in_latin_subset: %d\n", sub_font->num_glyphs_in_latin_subset); + printf(" max_glyphs_per_subset: %d\n\n", sub_font->max_glyphs_per_subset); + + _cairo_hash_table_foreach (sub_font->sub_font_glyphs, dump_glyph, NULL); + + printf("\n"); + sub_font = sub_font->next; + } +} + +void +dump_scaled_font_subsets (cairo_scaled_font_subsets_t *font_subsets) +{ + printf("font subsets\n"); + switch (font_subsets->type) + { + case CAIRO_SUBSETS_SCALED: + printf(" type: CAIRO_SUBSETS_SCALED\n"); + break; + case CAIRO_SUBSETS_SIMPLE: + printf(" type: CAIRO_SUBSETS_SIMPLE\n"); + break; + case CAIRO_SUBSETS_COMPOSITE: + printf(" type: CAIRO_SUBSETS_COMPOSITE\n"); + break; + } + printf(" use_latin_subset: %d\n", font_subsets->use_latin_subset); + printf(" max_glyphs_per_unscaled_subset_used: %d\n", font_subsets->max_glyphs_per_unscaled_subset_used); + printf(" max_glyphs_per_scaled_subset_used: %d\n", font_subsets->max_glyphs_per_scaled_subset_used); + printf(" num_sub_fonts: %d\n\n", font_subsets->num_sub_fonts); + + printf(" scaled subsets:\n"); + dump_subfont (font_subsets->scaled_sub_fonts_list); + + printf("\n unscaled subsets:\n"); + dump_subfont (font_subsets->unscaled_sub_fonts_list); +} + +#endif + + +static void +_cairo_string_init_key (cairo_string_entry_t *key, char *s) +{ + unsigned long sum = 0; + unsigned int i; + + for (i = 0; i < strlen(s); i++) + sum += s[i]; + key->base.hash = sum; + key->string = s; +} + +static cairo_status_t +create_string_entry (char *s, cairo_string_entry_t **entry) +{ + *entry = _cairo_calloc (sizeof (cairo_string_entry_t)); + if (unlikely (*entry == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_string_init_key (*entry, s); + + return CAIRO_STATUS_SUCCESS; +} + +static void +_pluck_entry (void *entry, void *closure) +{ + _cairo_hash_table_remove (closure, entry); + free (entry); +} + +cairo_int_status_t +_cairo_scaled_font_subset_create_glyph_names (cairo_scaled_font_subset_t *subset) +{ + unsigned int i; + cairo_hash_table_t *names; + cairo_string_entry_t key, *entry; + char buf[30]; + char *utf8; + uint16_t *utf16; + int utf16_len; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + names = _cairo_hash_table_create (_cairo_string_equal); + if (unlikely (names == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + subset->glyph_names = _cairo_calloc_ab (subset->num_glyphs, sizeof (char *)); + if (unlikely (subset->glyph_names == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_HASH; + } + + i = 0; + if (! subset->is_scaled) { + subset->glyph_names[0] = strdup (".notdef"); + if (unlikely (subset->glyph_names[0] == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_HASH; + } + + status = create_string_entry (subset->glyph_names[0], &entry); + if (unlikely (status)) + goto CLEANUP_HASH; + + status = _cairo_hash_table_insert (names, &entry->base); + if (unlikely (status)) { + free (entry); + goto CLEANUP_HASH; + } + i++; + } + + for (; i < subset->num_glyphs; i++) { + utf8 = subset->utf8[i]; + utf16 = NULL; + utf16_len = 0; + if (utf8 && *utf8) { + status = _cairo_utf8_to_utf16 (utf8, -1, &utf16, &utf16_len); + if (status == CAIRO_STATUS_INVALID_STRING) { + utf16 = NULL; + utf16_len = 0; + } else if (unlikely (status)) { + goto CLEANUP_HASH; + } + } + + if (utf16_len == 1) { + int ch = _cairo_unicode_to_winansi (utf16[0]); + if (ch > 0 && _cairo_winansi_to_glyphname (ch)) { + strncpy (buf, _cairo_winansi_to_glyphname (ch), sizeof (buf)); + buf[sizeof (buf)-1] = '\0'; + } else { + snprintf (buf, sizeof (buf), "uni%04X", (int) utf16[0]); + } + + _cairo_string_init_key (&key, buf); + entry = _cairo_hash_table_lookup (names, &key.base); + if (entry != NULL) + snprintf (buf, sizeof (buf), "g%d", i); + } else { + snprintf (buf, sizeof (buf), "g%d", i); + } + free (utf16); + + subset->glyph_names[i] = strdup (buf); + if (unlikely (subset->glyph_names[i] == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_HASH; + } + + status = create_string_entry (subset->glyph_names[i], &entry); + if (unlikely (status)) + goto CLEANUP_HASH; + + status = _cairo_hash_table_insert (names, &entry->base); + if (unlikely (status)) { + free (entry); + goto CLEANUP_HASH; + } + } + +CLEANUP_HASH: + _cairo_hash_table_foreach (names, _pluck_entry, names); + _cairo_hash_table_destroy (names); + + if (likely (status == CAIRO_STATUS_SUCCESS)) + return CAIRO_STATUS_SUCCESS; + + if (subset->glyph_names != NULL) { + for (i = 0; i < subset->num_glyphs; i++) { + free (subset->glyph_names[i]); + } + + free (subset->glyph_names); + subset->glyph_names = NULL; + } + + return status; +} + +cairo_int_status_t +_cairo_escape_ps_name (char **ps_name) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + /* Ensure PS name is a valid PDF/PS name object. In PDF names are + * treated as UTF8 and non ASCII bytes, ' ', and '#' are encoded + * as '#' followed by 2 hex digits that encode the byte. By also + * encoding the characters in the reserved string we ensure the + * name is also PS compatible. */ + if (*ps_name) { + static const char *reserved = "()<>[]{}/%#\\"; + char buf[128]; /* max name length is 127 bytes */ + char *src = *ps_name; + char *dst = buf; + + while (*src && dst < buf + 127) { + unsigned char c = *src; + if (c < 0x21 || c > 0x7e || strchr (reserved, c)) { + if (dst + 4 > buf + 127) + break; + + snprintf (dst, 4, "#%02X", c); + src++; + dst += 3; + } else { + *dst++ = *src++; + } + } + *dst = 0; + free (*ps_name); + *ps_name = strdup (buf); + if (*ps_name == NULL) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + } + + return status; +} + +#endif /* CAIRO_HAS_FONT_SUBSET */ diff --git a/local/recipes/libs/cairo/source/src/cairo-scaled-font.c b/local/recipes/libs/cairo/source/src/cairo-scaled-font.c new file mode 100755 index 0000000000..82a4447f54 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-scaled-font.c @@ -0,0 +1,3122 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2005 Keith Packard + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Keith Packard + * + * Contributor(s): + * Keith Packard + * Carl D. Worth + * Graydon Hoare + * Owen Taylor + * Behdad Esfahbod + * Chris Wilson + */ + +#include "cairoint.h" +#include "cairo-array-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-list-inline.h" +#include "cairo-pattern-private.h" +#include "cairo-scaled-font-private.h" +#include "cairo-surface-backend-private.h" + +/** + * SECTION:cairo-scaled-font + * @Title: cairo_scaled_font_t + * @Short_Description: Font face at particular size and options + * @See_Also: #cairo_font_face_t, #cairo_matrix_t, #cairo_font_options_t + * + * #cairo_scaled_font_t represents a realization of a font face at a particular + * size and transformation and a certain set of font options. + **/ + +static uintptr_t +_cairo_scaled_font_compute_hash (cairo_scaled_font_t *scaled_font); + +/* Global Glyph Cache + * + * We maintain a global pool of glyphs split between all active fonts. This + * allows a heavily used individual font to cache more glyphs than we could + * manage if we used per-font glyph caches, but at the same time maintains + * fairness across all fonts and provides a cap on the maximum number of + * global glyphs. + * + * The glyphs are allocated in pages, which are capped in the global pool. + * Using pages means we can reduce the frequency at which we have to probe the + * global pool and ameliorates the memory allocation pressure. + */ + +/* XXX: This number is arbitrary---we've never done any measurement of this. */ +#define MAX_GLYPH_PAGES_CACHED 512 +static cairo_cache_t cairo_scaled_glyph_page_cache; + +#define CAIRO_SCALED_GLYPH_PAGE_SIZE 32 +struct _cairo_scaled_glyph_page { + cairo_cache_entry_t cache_entry; + cairo_scaled_font_t *scaled_font; + cairo_list_t link; + + unsigned int num_glyphs; + cairo_scaled_glyph_t glyphs[CAIRO_SCALED_GLYPH_PAGE_SIZE]; +}; + +/* + * Notes: + * + * To store rasterizations of glyphs, we use an image surface and the + * device offset to represent the glyph origin. + * + * A device_transform converts from device space (a conceptual space) to + * surface space. For simple cases of translation only, it's called a + * device_offset and is public API (cairo_surface_[gs]et_device_offset()). + * A possibly better name for those functions could have been + * cairo_surface_[gs]et_origin(). So, that's what they do: they set where + * the device-space origin (0,0) is in the surface. If the origin is inside + * the surface, device_offset values are positive. It may look like this: + * + * Device space: + * (-x,-y) <-- negative numbers + * +----------------+ + * | . | + * | . | + * |......(0,0) <---|-- device-space origin + * | | + * | | + * +----------------+ + * (width-x,height-y) + * + * Surface space: + * (0,0) <-- surface-space origin + * +---------------+ + * | . | + * | . | + * |......(x,y) <--|-- device_offset + * | | + * | | + * +---------------+ + * (width,height) + * + * In other words: device_offset is the coordinates of the device-space + * origin relative to the top-left of the surface. + * + * We use device offsets in a couple of places: + * + * - Public API: To let toolkits like Gtk+ give user a surface that + * only represents part of the final destination (say, the expose + * area), but has the same device space as the destination. In these + * cases device_offset is typically negative. Example: + * + * application window + * +---------------+ + * | . | + * | (x,y). | + * |......+---+ | + * | | | <--|-- expose area + * | +---+ | + * +---------------+ + * + * In this case, the user of cairo API can set the device_space on + * the expose area to (-x,-y) to move the device space origin to that + * of the application window, such that drawing in the expose area + * surface and painting it in the application window has the same + * effect as drawing in the application window directly. Gtk+ has + * been using this feature. + * + * - Glyph surfaces: In most font rendering systems, glyph surfaces + * have an origin at (0,0) and a bounding box that is typically + * represented as (x_bearing,y_bearing,width,height). Depending on + * which way y progresses in the system, y_bearing may typically be + * negative (for systems similar to cairo, with origin at top left), + * or be positive (in systems like PDF with origin at bottom left). + * No matter which is the case, it is important to note that + * (x_bearing,y_bearing) is the coordinates of top-left of the glyph + * relative to the glyph origin. That is, for example: + * + * Scaled-glyph space: + * + * (x_bearing,y_bearing) <-- negative numbers + * +----------------+ + * | . | + * | . | + * |......(0,0) <---|-- glyph origin + * | | + * | | + * +----------------+ + * (width+x_bearing,height+y_bearing) + * + * Note the similarity of the origin to the device space. That is + * exactly how we use the device_offset to represent scaled glyphs: + * to use the device-space origin as the glyph origin. + * + * Now compare the scaled-glyph space to device-space and surface-space + * and convince yourself that: + * + * (x_bearing,y_bearing) = (-x,-y) = - device_offset + * + * That's right. If you are not convinced yet, contrast the definition + * of the two: + * + * "(x_bearing,y_bearing) is the coordinates of top-left of the + * glyph relative to the glyph origin." + * + * "In other words: device_offset is the coordinates of the + * device-space origin relative to the top-left of the surface." + * + * and note that glyph origin = device-space origin. + */ + +static void +_cairo_scaled_font_fini_internal (cairo_scaled_font_t *scaled_font); + +static void +_cairo_scaled_glyph_fini (cairo_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph) +{ + while (! cairo_list_is_empty (&scaled_glyph->dev_privates)) { + cairo_scaled_glyph_private_t *private = + cairo_list_first_entry (&scaled_glyph->dev_privates, + cairo_scaled_glyph_private_t, + link); + private->destroy (private, scaled_glyph, scaled_font); + } + + _cairo_image_scaled_glyph_fini (scaled_font, scaled_glyph); + + if (scaled_glyph->surface != NULL) + cairo_surface_destroy (&scaled_glyph->surface->base); + + if (scaled_glyph->path != NULL) + _cairo_path_fixed_destroy (scaled_glyph->path); + + if (scaled_glyph->recording_surface != NULL) { + cairo_status_t status; + + /* If the recording surface contains other fonts, destroying + * it while holding _cairo_scaled_glyph_page_cache_mutex will + * result in deadlock when the recording surface font is + * destroyed. Instead, move the recording surface to a list of + * surfaces to free and free it in + * _cairo_scaled_font_thaw_cache() after + * _cairo_scaled_glyph_page_cache_mutex is unlocked. */ + status = _cairo_array_append (&scaled_font->recording_surfaces_to_free, &scaled_glyph->recording_surface); + assert (status == CAIRO_STATUS_SUCCESS); + } + + if (scaled_glyph->color_surface != NULL) + cairo_surface_destroy (&scaled_glyph->color_surface->base); +} + +#define ZOMBIE 0 +static const cairo_scaled_font_t _cairo_scaled_font_nil = { + { ZOMBIE }, /* hash_entry */ + CAIRO_STATUS_NO_MEMORY, /* status */ + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ + { 0, 0, 0, NULL }, /* user_data */ + NULL, /* original_font_face */ + NULL, /* font_face */ + { 1., 0., 0., 1., 0, 0}, /* font_matrix */ + { 1., 0., 0., 1., 0, 0}, /* ctm */ + { CAIRO_ANTIALIAS_DEFAULT, /* options */ + CAIRO_SUBPIXEL_ORDER_DEFAULT, + CAIRO_HINT_STYLE_DEFAULT, + CAIRO_HINT_METRICS_DEFAULT} , + FALSE, /* placeholder */ + FALSE, /* holdover */ + TRUE, /* finished */ + { 1., 0., 0., 1., 0, 0}, /* scale */ + { 1., 0., 0., 1., 0, 0}, /* scale_inverse */ + 1., /* max_scale */ + { 0., 0., 0., 0., 0. }, /* extents */ + { 0., 0., 0., 0., 0. }, /* fs_extents */ + CAIRO_MUTEX_NIL_INITIALIZER,/* mutex */ + NULL, /* glyphs */ + { NULL, NULL }, /* pages */ + FALSE, /* cache_frozen */ + FALSE, /* global_cache_frozen */ + { 0, 0, sizeof(cairo_surface_t*), NULL }, /* recording_surfaces_to_free */ + { NULL, NULL }, /* privates */ + NULL /* backend */ +}; + +/** + * _cairo_scaled_font_set_error: + * @scaled_font: a scaled_font + * @status: a status value indicating an error + * + * Atomically sets scaled_font->status to @status and calls _cairo_error; + * Does nothing if status is %CAIRO_STATUS_SUCCESS. + * + * All assignments of an error status to scaled_font->status should happen + * through _cairo_scaled_font_set_error(). Note that due to the nature of + * the atomic operation, it is not safe to call this function on the nil + * objects. + * + * The purpose of this function is to allow the user to set a + * breakpoint in _cairo_error() to generate a stack trace for when the + * user causes cairo to detect an error. + * + * Return value: the error status. + **/ +cairo_status_t +_cairo_scaled_font_set_error (cairo_scaled_font_t *scaled_font, + cairo_status_t status) +{ + if (status == CAIRO_STATUS_SUCCESS) + return status; + + /* Don't overwrite an existing error. This preserves the first + * error, which is the most significant. */ + _cairo_status_set_error (&scaled_font->status, status); + + return _cairo_error (status); +} + +/** + * cairo_scaled_font_get_type: + * @scaled_font: a #cairo_scaled_font_t + * + * This function returns the type of the backend used to create + * a scaled font. See #cairo_font_type_t for available types. + * However, this function never returns %CAIRO_FONT_TYPE_TOY. + * + * Return value: The type of @scaled_font. + * + * Since: 1.2 + **/ +cairo_font_type_t +cairo_scaled_font_get_type (cairo_scaled_font_t *scaled_font) +{ + if (CAIRO_REFERENCE_COUNT_IS_INVALID (&scaled_font->ref_count)) + return CAIRO_FONT_TYPE_TOY; + + return scaled_font->backend->type; +} + +/** + * cairo_scaled_font_status: + * @scaled_font: a #cairo_scaled_font_t + * + * Checks whether an error has previously occurred for this + * scaled_font. + * + * Return value: %CAIRO_STATUS_SUCCESS or another error such as + * %CAIRO_STATUS_NO_MEMORY. + * + * Since: 1.0 + **/ +cairo_status_t +cairo_scaled_font_status (cairo_scaled_font_t *scaled_font) +{ + return scaled_font->status; +} + +/* Here we keep a unique mapping from + * font_face/matrix/ctm/font_options => #cairo_scaled_font_t. + * + * Here are the things that we want to map: + * + * a) All otherwise referenced #cairo_scaled_font_t's + * b) Some number of not otherwise referenced #cairo_scaled_font_t's + * + * The implementation uses a hash table which covers (a) + * completely. Then, for (b) we have an array of otherwise + * unreferenced fonts (holdovers) which are expired in + * least-recently-used order. + * + * The cairo_scaled_font_create() code gets to treat this like a regular + * hash table. All of the magic for the little holdover cache is in + * cairo_scaled_font_reference() and cairo_scaled_font_destroy(). + */ + +/* This defines the size of the holdover array ... that is, the number + * of scaled fonts we keep around even when not otherwise referenced + */ +#define CAIRO_SCALED_FONT_MAX_HOLDOVERS 256 + +typedef struct _cairo_scaled_font_map { + cairo_scaled_font_t *mru_scaled_font; + cairo_hash_table_t *hash_table; + cairo_scaled_font_t *holdovers[CAIRO_SCALED_FONT_MAX_HOLDOVERS]; + int num_holdovers; +} cairo_scaled_font_map_t; + +static cairo_scaled_font_map_t *cairo_scaled_font_map; + +static int +_cairo_scaled_font_keys_equal (const void *abstract_key_a, const void *abstract_key_b); + +static cairo_scaled_font_map_t * +_cairo_scaled_font_map_lock (void) +{ + CAIRO_MUTEX_LOCK (_cairo_scaled_font_map_mutex); + + if (cairo_scaled_font_map == NULL) { + cairo_scaled_font_map = _cairo_calloc (sizeof (cairo_scaled_font_map_t)); + if (unlikely (cairo_scaled_font_map == NULL)) + goto CLEANUP_MUTEX_LOCK; + + cairo_scaled_font_map->mru_scaled_font = NULL; + cairo_scaled_font_map->hash_table = + _cairo_hash_table_create (_cairo_scaled_font_keys_equal); + + if (unlikely (cairo_scaled_font_map->hash_table == NULL)) + goto CLEANUP_SCALED_FONT_MAP; + + cairo_scaled_font_map->num_holdovers = 0; + } + + return cairo_scaled_font_map; + + CLEANUP_SCALED_FONT_MAP: + free (cairo_scaled_font_map); + cairo_scaled_font_map = NULL; + CLEANUP_MUTEX_LOCK: + CAIRO_MUTEX_UNLOCK (_cairo_scaled_font_map_mutex); + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return NULL; +} + +static void +_cairo_scaled_font_map_unlock (void) +{ + CAIRO_MUTEX_UNLOCK (_cairo_scaled_font_map_mutex); +} + +void +_cairo_scaled_font_map_destroy (void) +{ + cairo_scaled_font_map_t *font_map; + cairo_scaled_font_t *scaled_font; + + CAIRO_MUTEX_LOCK (_cairo_scaled_font_map_mutex); + + font_map = cairo_scaled_font_map; + if (unlikely (font_map == NULL)) { + goto CLEANUP_MUTEX_LOCK; + } + + scaled_font = font_map->mru_scaled_font; + if (scaled_font != NULL) { + CAIRO_MUTEX_UNLOCK (_cairo_scaled_font_map_mutex); + cairo_scaled_font_destroy (scaled_font); + CAIRO_MUTEX_LOCK (_cairo_scaled_font_map_mutex); + } + + /* remove scaled_fonts starting from the end so that font_map->holdovers + * is always in a consistent state when we release the mutex. */ + while (font_map->num_holdovers) { + scaled_font = font_map->holdovers[font_map->num_holdovers-1]; + assert (! CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&scaled_font->ref_count)); + _cairo_hash_table_remove (font_map->hash_table, + &scaled_font->hash_entry); + + font_map->num_holdovers--; + + /* This releases the font_map lock to avoid the possibility of a + * recursive deadlock when the scaled font destroy closure gets + * called + */ + _cairo_scaled_font_fini (scaled_font); + + free (scaled_font); + } + + _cairo_hash_table_destroy (font_map->hash_table); + + free (cairo_scaled_font_map); + cairo_scaled_font_map = NULL; + + CLEANUP_MUTEX_LOCK: + CAIRO_MUTEX_UNLOCK (_cairo_scaled_font_map_mutex); +} + +static void +_cairo_scaled_glyph_page_destroy (cairo_scaled_font_t *scaled_font, + cairo_scaled_glyph_page_t *page) +{ + unsigned int n; + + assert (!scaled_font->cache_frozen); + assert (!scaled_font->global_cache_frozen); + + for (n = 0; n < page->num_glyphs; n++) { + _cairo_hash_table_remove (scaled_font->glyphs, + &page->glyphs[n].hash_entry); + _cairo_scaled_glyph_fini (scaled_font, &page->glyphs[n]); + } + + cairo_list_del (&page->link); + free (page); +} + +static void +_cairo_scaled_glyph_page_pluck (void *closure) +{ + cairo_scaled_glyph_page_t *page = closure; + cairo_scaled_font_t *scaled_font; + + assert (! cairo_list_is_empty (&page->link)); + + scaled_font = page->scaled_font; + + /* The font is locked in _cairo_scaled_glyph_page_can_remove () */ + _cairo_scaled_glyph_page_destroy (scaled_font, page); + CAIRO_MUTEX_UNLOCK (scaled_font->mutex); +} + +/* If a scaled font wants to unlock the font map while still being + * created (needed for user-fonts), we need to take extra care not + * ending up with multiple identical scaled fonts being created. + * + * What we do is, we create a fake identical scaled font, and mark + * it as placeholder, lock its mutex, and insert that in the fontmap + * hash table. This makes other code trying to create an identical + * scaled font to just wait and retry. + * + * The reason we have to create a fake scaled font instead of just using + * scaled_font is for lifecycle management: we need to (or rather, + * other code needs to) reference the scaled_font in the hash table. + * We can't do that on the input scaled_font as it may be freed by + * font backend upon error. + */ + +cairo_status_t +_cairo_scaled_font_register_placeholder_and_unlock_font_map (cairo_scaled_font_t *scaled_font) +{ + cairo_status_t status; + cairo_scaled_font_t *placeholder_scaled_font; + + assert (CAIRO_MUTEX_IS_LOCKED (_cairo_scaled_font_map_mutex)); + + status = scaled_font->status; + if (unlikely (status)) + return status; + + placeholder_scaled_font = _cairo_calloc (sizeof (cairo_scaled_font_t)); + if (unlikely (placeholder_scaled_font == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + /* full initialization is wasteful, but who cares... */ + status = _cairo_scaled_font_init (placeholder_scaled_font, + scaled_font->font_face, + &scaled_font->font_matrix, + &scaled_font->ctm, + &scaled_font->options, + NULL); + if (unlikely (status)) + goto FREE_PLACEHOLDER; + + placeholder_scaled_font->placeholder = TRUE; + + placeholder_scaled_font->hash_entry.hash + = _cairo_scaled_font_compute_hash (placeholder_scaled_font); + status = _cairo_hash_table_insert (cairo_scaled_font_map->hash_table, + &placeholder_scaled_font->hash_entry); + if (unlikely (status)) + goto FINI_PLACEHOLDER; + + CAIRO_MUTEX_UNLOCK (_cairo_scaled_font_map_mutex); + CAIRO_MUTEX_LOCK (placeholder_scaled_font->mutex); + + return CAIRO_STATUS_SUCCESS; + + FINI_PLACEHOLDER: + _cairo_scaled_font_fini_internal (placeholder_scaled_font); + FREE_PLACEHOLDER: + free (placeholder_scaled_font); + + return _cairo_scaled_font_set_error (scaled_font, status); +} + +void +_cairo_scaled_font_unregister_placeholder_and_lock_font_map (cairo_scaled_font_t *scaled_font) +{ + cairo_scaled_font_t *placeholder_scaled_font; + + CAIRO_MUTEX_LOCK (_cairo_scaled_font_map_mutex); + + /* temporary hash value to match the placeholder */ + scaled_font->hash_entry.hash + = _cairo_scaled_font_compute_hash (scaled_font); + placeholder_scaled_font = + _cairo_hash_table_lookup (cairo_scaled_font_map->hash_table, + &scaled_font->hash_entry); + assert (placeholder_scaled_font != NULL); + assert (placeholder_scaled_font->placeholder); + assert (CAIRO_MUTEX_IS_LOCKED (placeholder_scaled_font->mutex)); + + _cairo_hash_table_remove (cairo_scaled_font_map->hash_table, + &placeholder_scaled_font->hash_entry); + + CAIRO_MUTEX_UNLOCK (_cairo_scaled_font_map_mutex); + + CAIRO_MUTEX_UNLOCK (placeholder_scaled_font->mutex); + cairo_scaled_font_destroy (placeholder_scaled_font); + + CAIRO_MUTEX_LOCK (_cairo_scaled_font_map_mutex); +} + +static void +_cairo_scaled_font_placeholder_wait_for_creation_to_finish (cairo_scaled_font_t *placeholder_scaled_font) +{ + /* reference the place holder so it doesn't go away */ + cairo_scaled_font_reference (placeholder_scaled_font); + + /* now unlock the fontmap mutex so creation has a chance to finish */ + CAIRO_MUTEX_UNLOCK (_cairo_scaled_font_map_mutex); + + /* wait on placeholder mutex until we are awaken */ + CAIRO_MUTEX_LOCK (placeholder_scaled_font->mutex); + + /* ok, creation done. just clean up and back out */ + CAIRO_MUTEX_UNLOCK (placeholder_scaled_font->mutex); + cairo_scaled_font_destroy (placeholder_scaled_font); + + CAIRO_MUTEX_LOCK (_cairo_scaled_font_map_mutex); +} + +/* Fowler / Noll / Vo (FNV) Hash (http://www.isthe.com/chongo/tech/comp/fnv/) + * + * Not necessarily better than a lot of other hashes, but should be OK, and + * well tested with binary data. + */ + +#define FNV_64_PRIME ((uint64_t)0x00000100000001B3) +#define FNV1_64_INIT ((uint64_t)0xcbf29ce484222325) + +static uint64_t +_hash_matrix_fnv (const cairo_matrix_t *matrix, + uint64_t hval) +{ + const uint8_t *buffer = (const uint8_t *) matrix; + int len = sizeof (cairo_matrix_t); + do { + hval *= FNV_64_PRIME; + hval ^= *buffer++; + } while (--len); + + return hval; +} + +static uint64_t +_hash_mix_bits (uint64_t hash) +{ + hash += hash << 12; + hash ^= hash >> 7; + hash += hash << 3; + hash ^= hash >> 17; + hash += hash << 5; + return hash; +} + +static uintptr_t +_cairo_scaled_font_compute_hash (cairo_scaled_font_t *scaled_font) +{ + uint64_t hash = FNV1_64_INIT; + + /* We do a bytewise hash on the font matrices */ + hash = _hash_matrix_fnv (&scaled_font->font_matrix, hash); + hash = _hash_matrix_fnv (&scaled_font->ctm, hash); + hash = _hash_mix_bits (hash); + + hash ^= (uintptr_t) scaled_font->original_font_face; + hash ^= cairo_font_options_hash (&scaled_font->options); + + /* final mixing of bits */ + hash = _hash_mix_bits (hash); + assert (hash != ZOMBIE); + + return hash; +} + +static void +_cairo_scaled_font_init_key (cairo_scaled_font_t *scaled_font, + cairo_font_face_t *font_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options) +{ + scaled_font->status = CAIRO_STATUS_SUCCESS; + scaled_font->placeholder = FALSE; + scaled_font->font_face = font_face; + scaled_font->original_font_face = font_face; + scaled_font->font_matrix = *font_matrix; + scaled_font->ctm = *ctm; + /* ignore translation values in the ctm */ + scaled_font->ctm.x0 = 0.; + scaled_font->ctm.y0 = 0.; + _cairo_font_options_init_copy (&scaled_font->options, options); + + scaled_font->hash_entry.hash = + _cairo_scaled_font_compute_hash (scaled_font); +} + +static void +_cairo_scaled_font_fini_key (cairo_scaled_font_t *scaled_font) +{ + _cairo_font_options_fini (&scaled_font->options); +} + +static cairo_bool_t +_cairo_scaled_font_keys_equal (const void *abstract_key_a, + const void *abstract_key_b) +{ + const cairo_scaled_font_t *key_a = abstract_key_a; + const cairo_scaled_font_t *key_b = abstract_key_b; + + return key_a->original_font_face == key_b->original_font_face && + memcmp ((unsigned char *)(&key_a->font_matrix.xx), + (unsigned char *)(&key_b->font_matrix.xx), + sizeof(cairo_matrix_t)) == 0 && + memcmp ((unsigned char *)(&key_a->ctm.xx), + (unsigned char *)(&key_b->ctm.xx), + sizeof(cairo_matrix_t)) == 0 && + cairo_font_options_equal (&key_a->options, &key_b->options); +} + +static cairo_bool_t +_cairo_scaled_font_matches (const cairo_scaled_font_t *scaled_font, + const cairo_font_face_t *font_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options) +{ + return scaled_font->original_font_face == font_face && + memcmp ((unsigned char *)(&scaled_font->font_matrix.xx), + (unsigned char *)(&font_matrix->xx), + sizeof(cairo_matrix_t)) == 0 && + memcmp ((unsigned char *)(&scaled_font->ctm.xx), + (unsigned char *)(&ctm->xx), + sizeof(cairo_matrix_t)) == 0 && + cairo_font_options_equal (&scaled_font->options, options); +} + +/* + * Basic #cairo_scaled_font_t object management + */ + +cairo_status_t +_cairo_scaled_font_init (cairo_scaled_font_t *scaled_font, + cairo_font_face_t *font_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options, + const cairo_scaled_font_backend_t *backend) +{ + cairo_status_t status; + + status = cairo_font_options_status ((cairo_font_options_t *) options); + if (unlikely (status)) + return status; + + scaled_font->status = CAIRO_STATUS_SUCCESS; + scaled_font->placeholder = FALSE; + scaled_font->font_face = font_face; + scaled_font->original_font_face = font_face; + scaled_font->font_matrix = *font_matrix; + scaled_font->ctm = *ctm; + /* ignore translation values in the ctm */ + scaled_font->ctm.x0 = 0.; + scaled_font->ctm.y0 = 0.; + _cairo_font_options_init_copy (&scaled_font->options, options); + + cairo_matrix_multiply (&scaled_font->scale, + &scaled_font->font_matrix, + &scaled_font->ctm); + + scaled_font->max_scale = MAX (fabs (scaled_font->scale.xx) + fabs (scaled_font->scale.xy), + fabs (scaled_font->scale.yx) + fabs (scaled_font->scale.yy)); + scaled_font->scale_inverse = scaled_font->scale; + status = cairo_matrix_invert (&scaled_font->scale_inverse); + if (unlikely (status)) { + /* If the font scale matrix is rank 0, just using an all-zero inverse matrix + * makes everything work correctly. This make font size 0 work without + * producing an error. + * + * FIXME: If the scale is rank 1, we still go into error mode. But then + * again, that's what we do everywhere in cairo. + * + * Also, the check for == 0. below may be too harsh... + */ + if (_cairo_matrix_is_scale_0 (&scaled_font->scale)) { + cairo_matrix_init (&scaled_font->scale_inverse, + 0, 0, 0, 0, + -scaled_font->scale.x0, + -scaled_font->scale.y0); + } else + return status; + } + + scaled_font->glyphs = _cairo_hash_table_create (NULL); + if (unlikely (scaled_font->glyphs == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + cairo_list_init (&scaled_font->glyph_pages); + scaled_font->cache_frozen = FALSE; + scaled_font->global_cache_frozen = FALSE; + _cairo_array_init (&scaled_font->recording_surfaces_to_free, sizeof (cairo_surface_t *)); + + scaled_font->holdover = FALSE; + scaled_font->finished = FALSE; + + CAIRO_REFERENCE_COUNT_INIT (&scaled_font->ref_count, 1); + + _cairo_user_data_array_init (&scaled_font->user_data); + + cairo_font_face_reference (font_face); + scaled_font->original_font_face = NULL; + + CAIRO_RECURSIVE_MUTEX_INIT (scaled_font->mutex); + + cairo_list_init (&scaled_font->dev_privates); + + scaled_font->backend = backend; + cairo_list_init (&scaled_font->link); + + return CAIRO_STATUS_SUCCESS; +} + +static void _cairo_scaled_font_free_recording_surfaces (cairo_scaled_font_t *scaled_font) +{ + int num_recording_surfaces; + cairo_surface_t *surface; + + num_recording_surfaces = _cairo_array_num_elements (&scaled_font->recording_surfaces_to_free); + if (num_recording_surfaces > 0) { + for (int i = 0; i < num_recording_surfaces; i++) { + _cairo_array_copy_element (&scaled_font->recording_surfaces_to_free, i, &surface); + cairo_surface_finish (surface); + cairo_surface_destroy (surface); + } + _cairo_array_truncate (&scaled_font->recording_surfaces_to_free, 0); + } +} + +void +_cairo_scaled_font_freeze_cache (cairo_scaled_font_t *scaled_font) +{ + /* ensure we do not modify an error object */ + assert (scaled_font->status == CAIRO_STATUS_SUCCESS); + + CAIRO_MUTEX_LOCK (scaled_font->mutex); + scaled_font->cache_frozen = TRUE; +} + +void +_cairo_scaled_font_thaw_cache (cairo_scaled_font_t *scaled_font) +{ + assert (scaled_font->cache_frozen); + + if (scaled_font->global_cache_frozen) { + CAIRO_MUTEX_LOCK (_cairo_scaled_glyph_page_cache_mutex); + _cairo_cache_thaw (&cairo_scaled_glyph_page_cache); + CAIRO_MUTEX_UNLOCK (_cairo_scaled_glyph_page_cache_mutex); + scaled_font->global_cache_frozen = FALSE; + } + + _cairo_scaled_font_free_recording_surfaces (scaled_font); + + scaled_font->cache_frozen = FALSE; + CAIRO_MUTEX_UNLOCK (scaled_font->mutex); +} + +void +_cairo_scaled_font_reset_cache (cairo_scaled_font_t *scaled_font) +{ + cairo_scaled_glyph_page_t *page; + + CAIRO_MUTEX_LOCK (scaled_font->mutex); + assert (! scaled_font->cache_frozen); + assert (! scaled_font->global_cache_frozen); + CAIRO_MUTEX_LOCK (_cairo_scaled_glyph_page_cache_mutex); + + cairo_list_foreach_entry (page, + cairo_scaled_glyph_page_t, + &scaled_font->glyph_pages, + link) { + cairo_scaled_glyph_page_cache.size -= page->cache_entry.size; + _cairo_hash_table_remove (cairo_scaled_glyph_page_cache.hash_table, + (cairo_hash_entry_t *) &page->cache_entry); + } + + CAIRO_MUTEX_UNLOCK (_cairo_scaled_glyph_page_cache_mutex); + + /* Destroy scaled_font's pages while holding its lock only, and not the + * global page cache lock. The destructor can cause us to recurse and + * end up back here for a different scaled_font. */ + + while (! cairo_list_is_empty (&scaled_font->glyph_pages)) { + page = cairo_list_first_entry (&scaled_font->glyph_pages, + cairo_scaled_glyph_page_t, + link); + _cairo_scaled_glyph_page_destroy (scaled_font, page); + } + + CAIRO_MUTEX_UNLOCK (scaled_font->mutex); +} + +cairo_status_t +_cairo_scaled_font_set_metrics (cairo_scaled_font_t *scaled_font, + cairo_font_extents_t *fs_metrics) +{ + cairo_status_t status; + double font_scale_x, font_scale_y; + + scaled_font->fs_extents = *fs_metrics; + + status = _cairo_matrix_compute_basis_scale_factors (&scaled_font->font_matrix, + &font_scale_x, &font_scale_y, + 1); + if (unlikely (status)) + return status; + + /* + * The font responded in unscaled units, scale by the font + * matrix scale factors to get to user space + */ + + scaled_font->extents.ascent = fs_metrics->ascent * font_scale_y; + scaled_font->extents.descent = fs_metrics->descent * font_scale_y; + scaled_font->extents.height = fs_metrics->height * font_scale_y; + scaled_font->extents.max_x_advance = fs_metrics->max_x_advance * font_scale_x; + scaled_font->extents.max_y_advance = fs_metrics->max_y_advance * font_scale_y; + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_scaled_font_fini_internal (cairo_scaled_font_t *scaled_font) +{ + assert (! scaled_font->cache_frozen); + assert (! scaled_font->global_cache_frozen); + scaled_font->finished = TRUE; + + _cairo_scaled_font_reset_cache (scaled_font); + _cairo_hash_table_destroy (scaled_font->glyphs); + _cairo_font_options_fini (&scaled_font->options); + + cairo_font_face_destroy (scaled_font->font_face); + cairo_font_face_destroy (scaled_font->original_font_face); + + _cairo_scaled_font_free_recording_surfaces (scaled_font); + _cairo_array_fini (&scaled_font->recording_surfaces_to_free); + + CAIRO_MUTEX_FINI (scaled_font->mutex); + + while (! cairo_list_is_empty (&scaled_font->dev_privates)) { + cairo_scaled_font_private_t *private = + cairo_list_first_entry (&scaled_font->dev_privates, + cairo_scaled_font_private_t, + link); + private->destroy (private, scaled_font); + } + + if (scaled_font->backend != NULL && scaled_font->backend->fini != NULL) + scaled_font->backend->fini (scaled_font); + + _cairo_user_data_array_fini (&scaled_font->user_data); +} + +void +_cairo_scaled_font_fini (cairo_scaled_font_t *scaled_font) +{ + /* Release the lock to avoid the possibility of a recursive + * deadlock when the scaled font destroy closure gets called. */ + CAIRO_MUTEX_UNLOCK (_cairo_scaled_font_map_mutex); + _cairo_scaled_font_fini_internal (scaled_font); + CAIRO_MUTEX_LOCK (_cairo_scaled_font_map_mutex); +} + +void +_cairo_scaled_font_attach_private (cairo_scaled_font_t *scaled_font, + cairo_scaled_font_private_t *private, + const void *key, + void (*destroy) (cairo_scaled_font_private_t *, + cairo_scaled_font_t *)) +{ + private->key = key; + private->destroy = destroy; + cairo_list_add (&private->link, &scaled_font->dev_privates); +} + +cairo_scaled_font_private_t * +_cairo_scaled_font_find_private (cairo_scaled_font_t *scaled_font, + const void *key) +{ + cairo_scaled_font_private_t *priv; + + cairo_list_foreach_entry (priv, cairo_scaled_font_private_t, + &scaled_font->dev_privates, link) + { + if (priv->key == key) { + if (priv->link.prev != &scaled_font->dev_privates) + cairo_list_move (&priv->link, &scaled_font->dev_privates); + return priv; + } + } + + return NULL; +} + +void +_cairo_scaled_glyph_attach_private (cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_glyph_private_t *private, + const void *key, + void (*destroy) (cairo_scaled_glyph_private_t *, + cairo_scaled_glyph_t *, + cairo_scaled_font_t *)) +{ + private->key = key; + private->destroy = destroy; + cairo_list_add (&private->link, &scaled_glyph->dev_privates); +} + +cairo_scaled_glyph_private_t * +_cairo_scaled_glyph_find_private (cairo_scaled_glyph_t *scaled_glyph, + const void *key) +{ + cairo_scaled_glyph_private_t *priv; + + cairo_list_foreach_entry (priv, cairo_scaled_glyph_private_t, + &scaled_glyph->dev_privates, link) + { + if (priv->key == key) { + if (priv->link.prev != &scaled_glyph->dev_privates) + cairo_list_move (&priv->link, &scaled_glyph->dev_privates); + return priv; + } + } + + return NULL; +} + +/** + * cairo_scaled_font_create: + * @font_face: a #cairo_font_face_t + * @font_matrix: font space to user space transformation matrix for the + * font. In the simplest case of a N point font, this matrix is + * just a scale by N, but it can also be used to shear the font + * or stretch it unequally along the two axes. See + * cairo_set_font_matrix(). + * @ctm: user to device transformation matrix with which the font will + * be used. + * @options: options to use when getting metrics for the font and + * rendering with it. + * + * Creates a #cairo_scaled_font_t object from a font face and matrices that + * describe the size of the font and the environment in which it will + * be used. + * + * Return value: a newly created #cairo_scaled_font_t. Destroy with + * cairo_scaled_font_destroy() + * + * Since: 1.0 + **/ +cairo_scaled_font_t * +cairo_scaled_font_create (cairo_font_face_t *font_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options) +{ + cairo_status_t status; + cairo_scaled_font_map_t *font_map; + cairo_font_face_t *original_font_face = font_face; + cairo_scaled_font_t key, *old = NULL, *scaled_font = NULL, *dead = NULL; + double det; + + status = font_face->status; + if (unlikely (status)) + return _cairo_scaled_font_create_in_error (status); + + det = _cairo_matrix_compute_determinant (font_matrix); + if (! ISFINITE (det)) + return _cairo_scaled_font_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_MATRIX)); + + det = _cairo_matrix_compute_determinant (ctm); + if (! ISFINITE (det)) + return _cairo_scaled_font_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_MATRIX)); + + status = cairo_font_options_status ((cairo_font_options_t *) options); + if (unlikely (status)) + return _cairo_scaled_font_create_in_error (status); + + /* Note that degenerate ctm or font_matrix *are* allowed. + * We want to support a font size of 0. */ + + font_map = _cairo_scaled_font_map_lock (); + if (unlikely (font_map == NULL)) + return _cairo_scaled_font_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + scaled_font = font_map->mru_scaled_font; + if (scaled_font != NULL && + _cairo_scaled_font_matches (scaled_font, + font_face, font_matrix, ctm, options)) + { + assert (scaled_font->hash_entry.hash != ZOMBIE); + assert (! scaled_font->placeholder); + + if (likely (scaled_font->status == CAIRO_STATUS_SUCCESS)) { + /* We increment the reference count manually here, (rather + * than calling into cairo_scaled_font_reference), since we + * must modify the reference count while our lock is still + * held. */ + _cairo_reference_count_inc (&scaled_font->ref_count); + _cairo_scaled_font_map_unlock (); + return scaled_font; + } + + /* the font has been put into an error status - abandon the cache */ + _cairo_hash_table_remove (font_map->hash_table, + &scaled_font->hash_entry); + scaled_font->hash_entry.hash = ZOMBIE; + dead = scaled_font; + font_map->mru_scaled_font = NULL; + } + + _cairo_scaled_font_init_key (&key, font_face, font_matrix, ctm, options); + + while ((scaled_font = _cairo_hash_table_lookup (font_map->hash_table, + &key.hash_entry))) + { + if (! scaled_font->placeholder) + break; + + /* If the scaled font is being created (happens for user-font), + * just wait until it's done, then retry */ + _cairo_scaled_font_placeholder_wait_for_creation_to_finish (scaled_font); + } + _cairo_scaled_font_fini_key (&key); + + if (scaled_font != NULL) { + /* If the original reference count is 0, then this font must have + * been found in font_map->holdovers, (which means this caching is + * actually working). So now we remove it from the holdovers + * array, unless we caught the font in the middle of destruction. + */ + if (! CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&scaled_font->ref_count)) { + if (scaled_font->holdover) { + int i; + + for (i = 0; i < font_map->num_holdovers; i++) { + if (font_map->holdovers[i] == scaled_font) { + font_map->num_holdovers--; + memmove (&font_map->holdovers[i], + &font_map->holdovers[i+1], + (font_map->num_holdovers - i) * sizeof (cairo_scaled_font_t*)); + break; + } + } + + scaled_font->holdover = FALSE; + } + + /* reset any error status */ + scaled_font->status = CAIRO_STATUS_SUCCESS; + } + + if (likely (scaled_font->status == CAIRO_STATUS_SUCCESS)) { + /* We increment the reference count manually here, (rather + * than calling into cairo_scaled_font_reference), since we + * must modify the reference count while our lock is still + * held. */ + + old = font_map->mru_scaled_font; + font_map->mru_scaled_font = scaled_font; + /* increment reference count for the mru cache */ + _cairo_reference_count_inc (&scaled_font->ref_count); + /* and increment for the returned reference */ + _cairo_reference_count_inc (&scaled_font->ref_count); + _cairo_scaled_font_map_unlock (); + + cairo_scaled_font_destroy (old); + if (font_face != original_font_face) + cairo_font_face_destroy (font_face); + + return scaled_font; + } + + /* the font has been put into an error status - abandon the cache */ + _cairo_hash_table_remove (font_map->hash_table, + &scaled_font->hash_entry); + scaled_font->hash_entry.hash = ZOMBIE; + } + + + /* Otherwise create it and insert it into the hash table. */ + if (font_face->backend->get_implementation != NULL) { + font_face = font_face->backend->get_implementation (font_face, + font_matrix, + ctm, + options); + if (unlikely (font_face->status)) { + _cairo_scaled_font_map_unlock (); + return _cairo_scaled_font_create_in_error (font_face->status); + } + } + + status = font_face->backend->scaled_font_create (font_face, font_matrix, + ctm, options, &scaled_font); + if (unlikely (status)) { + _cairo_scaled_font_map_unlock (); + if (font_face != original_font_face) + cairo_font_face_destroy (font_face); + + if (dead != NULL) + cairo_scaled_font_destroy (dead); + + return _cairo_scaled_font_create_in_error (status); + } + /* Or did we encounter an error whilst constructing the scaled font? */ + if (unlikely (scaled_font->status)) { + _cairo_scaled_font_map_unlock (); + if (font_face != original_font_face) + cairo_font_face_destroy (font_face); + + if (dead != NULL) + cairo_scaled_font_destroy (dead); + + return scaled_font; + } + + /* Our caching above is defeated if the backend switches fonts on us - + * e.g. old incarnations of toy-font-face and lazily resolved + * ft-font-faces + */ + assert (scaled_font->font_face == font_face); + assert (! scaled_font->cache_frozen); + assert (! scaled_font->global_cache_frozen); + + scaled_font->original_font_face = + cairo_font_face_reference (original_font_face); + + scaled_font->hash_entry.hash = _cairo_scaled_font_compute_hash(scaled_font); + + status = _cairo_hash_table_insert (font_map->hash_table, + &scaled_font->hash_entry); + if (likely (status == CAIRO_STATUS_SUCCESS)) { + old = font_map->mru_scaled_font; + font_map->mru_scaled_font = scaled_font; + _cairo_reference_count_inc (&scaled_font->ref_count); + } + + _cairo_scaled_font_map_unlock (); + + cairo_scaled_font_destroy (old); + if (font_face != original_font_face) + cairo_font_face_destroy (font_face); + + if (dead != NULL) + cairo_scaled_font_destroy (dead); + + if (unlikely (status)) { + /* We can't call _cairo_scaled_font_destroy here since it expects + * that the font has already been successfully inserted into the + * hash table. */ + _cairo_scaled_font_fini_internal (scaled_font); + free (scaled_font); + return _cairo_scaled_font_create_in_error (status); + } + + return scaled_font; +} + +static cairo_scaled_font_t *_cairo_scaled_font_nil_objects[CAIRO_STATUS_LAST_STATUS + 1]; + +/* XXX This should disappear in favour of a common pool of error objects. */ +cairo_scaled_font_t * +_cairo_scaled_font_create_in_error (cairo_status_t status) +{ + cairo_scaled_font_t *scaled_font; + + assert (status != CAIRO_STATUS_SUCCESS); + + if (status == CAIRO_STATUS_NO_MEMORY) + return (cairo_scaled_font_t *) &_cairo_scaled_font_nil; + + CAIRO_MUTEX_LOCK (_cairo_scaled_font_error_mutex); + scaled_font = _cairo_scaled_font_nil_objects[status]; + if (unlikely (scaled_font == NULL)) { + scaled_font = _cairo_calloc (sizeof (cairo_scaled_font_t)); + if (unlikely (scaled_font == NULL)) { + CAIRO_MUTEX_UNLOCK (_cairo_scaled_font_error_mutex); + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_scaled_font_t *) &_cairo_scaled_font_nil; + } + + *scaled_font = _cairo_scaled_font_nil; + scaled_font->status = status; + _cairo_scaled_font_nil_objects[status] = scaled_font; + } + CAIRO_MUTEX_UNLOCK (_cairo_scaled_font_error_mutex); + + return scaled_font; +} + +void +_cairo_scaled_font_reset_static_data (void) +{ + int status; + + CAIRO_MUTEX_LOCK (_cairo_scaled_font_error_mutex); + for (status = CAIRO_STATUS_SUCCESS; + status <= CAIRO_STATUS_LAST_STATUS; + status++) + { + free (_cairo_scaled_font_nil_objects[status]); + _cairo_scaled_font_nil_objects[status] = NULL; + } + CAIRO_MUTEX_UNLOCK (_cairo_scaled_font_error_mutex); + + CAIRO_MUTEX_LOCK (_cairo_scaled_glyph_page_cache_mutex); + if (cairo_scaled_glyph_page_cache.hash_table != NULL) { + _cairo_cache_fini (&cairo_scaled_glyph_page_cache); + cairo_scaled_glyph_page_cache.hash_table = NULL; + } + CAIRO_MUTEX_UNLOCK (_cairo_scaled_glyph_page_cache_mutex); +} + +/** + * cairo_scaled_font_reference: + * @scaled_font: a #cairo_scaled_font_t, (may be %NULL in which case + * this function does nothing) + * + * Increases the reference count on @scaled_font by one. This prevents + * @scaled_font from being destroyed until a matching call to + * cairo_scaled_font_destroy() is made. + * + * Use cairo_scaled_font_get_reference_count() to get the number of + * references to a #cairo_scaled_font_t. + * + * Returns: the referenced #cairo_scaled_font_t + * + * Since: 1.0 + **/ +cairo_scaled_font_t * +cairo_scaled_font_reference (cairo_scaled_font_t *scaled_font) +{ + if (scaled_font == NULL || + CAIRO_REFERENCE_COUNT_IS_INVALID (&scaled_font->ref_count)) + return scaled_font; + + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&scaled_font->ref_count)); + + _cairo_reference_count_inc (&scaled_font->ref_count); + + return scaled_font; +} + +/** + * cairo_scaled_font_destroy: + * @scaled_font: a #cairo_scaled_font_t + * + * Decreases the reference count on @font by one. If the result + * is zero, then @font and all associated resources are freed. + * See cairo_scaled_font_reference(). + * + * Since: 1.0 + **/ +void +cairo_scaled_font_destroy (cairo_scaled_font_t *scaled_font) +{ + cairo_scaled_font_t *lru = NULL; + cairo_scaled_font_map_t *font_map; + + assert (CAIRO_MUTEX_IS_UNLOCKED (_cairo_scaled_font_map_mutex)); + + if (scaled_font == NULL || + CAIRO_REFERENCE_COUNT_IS_INVALID (&scaled_font->ref_count)) + return; + + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&scaled_font->ref_count)); + + font_map = _cairo_scaled_font_map_lock (); + assert (font_map != NULL); + + if (! _cairo_reference_count_dec_and_test (&scaled_font->ref_count)) + goto unlock; + + assert (! scaled_font->cache_frozen); + assert (! scaled_font->global_cache_frozen); + + /* Another thread may have resurrected the font whilst we waited */ + if (! CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&scaled_font->ref_count)) { + if (! scaled_font->placeholder && + scaled_font->hash_entry.hash != ZOMBIE) + { + /* Another thread may have already inserted us into the holdovers */ + if (scaled_font->holdover) + goto unlock; + + /* Rather than immediately destroying this object, we put it into + * the font_map->holdovers array in case it will get used again + * soon (and is why we must hold the lock over the atomic op on + * the reference count). To make room for it, we do actually + * destroy the least-recently-used holdover. + */ + + if (font_map->num_holdovers == CAIRO_SCALED_FONT_MAX_HOLDOVERS) { + lru = font_map->holdovers[0]; + assert (! CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&lru->ref_count)); + + _cairo_hash_table_remove (font_map->hash_table, + &lru->hash_entry); + + font_map->num_holdovers--; + memmove (&font_map->holdovers[0], + &font_map->holdovers[1], + font_map->num_holdovers * sizeof (cairo_scaled_font_t*)); + } + + font_map->holdovers[font_map->num_holdovers++] = scaled_font; + scaled_font->holdover = TRUE; + } else + lru = scaled_font; + } + + unlock: + _cairo_scaled_font_map_unlock (); + + /* If we pulled an item from the holdovers array, (while the font + * map lock was held, of course), then there is no way that anyone + * else could have acquired a reference to it. So we can now + * safely call fini on it without any lock held. This is desirable + * as we never want to call into any backend function with a lock + * held. */ + if (lru != NULL) { + _cairo_scaled_font_fini_internal (lru); + free (lru); + } +} + +/** + * cairo_scaled_font_get_reference_count: + * @scaled_font: a #cairo_scaled_font_t + * + * Returns the current reference count of @scaled_font. + * + * Return value: the current reference count of @scaled_font. If the + * object is a nil object, 0 will be returned. + * + * Since: 1.4 + **/ +unsigned int +cairo_scaled_font_get_reference_count (cairo_scaled_font_t *scaled_font) +{ + if (scaled_font == NULL || + CAIRO_REFERENCE_COUNT_IS_INVALID (&scaled_font->ref_count)) + return 0; + + return CAIRO_REFERENCE_COUNT_GET_VALUE (&scaled_font->ref_count); +} + +/** + * cairo_scaled_font_get_user_data: + * @scaled_font: a #cairo_scaled_font_t + * @key: the address of the #cairo_user_data_key_t the user data was + * attached to + * + * Return user data previously attached to @scaled_font using the + * specified key. If no user data has been attached with the given + * key this function returns %NULL. + * + * Return value: the user data previously attached or %NULL. + * + * Since: 1.4 + **/ +void * +cairo_scaled_font_get_user_data (cairo_scaled_font_t *scaled_font, + const cairo_user_data_key_t *key) +{ + return _cairo_user_data_array_get_data (&scaled_font->user_data, + key); +} + +/** + * cairo_scaled_font_set_user_data: + * @scaled_font: a #cairo_scaled_font_t + * @key: the address of a #cairo_user_data_key_t to attach the user data to + * @user_data: the user data to attach to the #cairo_scaled_font_t + * @destroy: a #cairo_destroy_func_t which will be called when the + * #cairo_t is destroyed or when new user data is attached using the + * same key. + * + * Attach user data to @scaled_font. To remove user data from a surface, + * call this function with the key that was used to set it and %NULL + * for @data. + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY if a + * slot could not be allocated for the user data. + * + * Since: 1.4 + **/ +cairo_status_t +cairo_scaled_font_set_user_data (cairo_scaled_font_t *scaled_font, + const cairo_user_data_key_t *key, + void *user_data, + cairo_destroy_func_t destroy) +{ + if (CAIRO_REFERENCE_COUNT_IS_INVALID (&scaled_font->ref_count)) + return scaled_font->status; + + return _cairo_user_data_array_set_data (&scaled_font->user_data, + key, user_data, destroy); +} + +/* Public font API follows. */ + +/** + * cairo_scaled_font_extents: + * @scaled_font: a #cairo_scaled_font_t + * @extents: a #cairo_font_extents_t which to store the retrieved extents. + * + * Gets the metrics for a #cairo_scaled_font_t. + * + * Since: 1.0 + **/ +void +cairo_scaled_font_extents (cairo_scaled_font_t *scaled_font, + cairo_font_extents_t *extents) +{ + if (scaled_font->status) { + extents->ascent = 0.0; + extents->descent = 0.0; + extents->height = 0.0; + extents->max_x_advance = 0.0; + extents->max_y_advance = 0.0; + return; + } + + *extents = scaled_font->extents; +} + +/** + * cairo_scaled_font_text_extents: + * @scaled_font: a #cairo_scaled_font_t + * @utf8: a NUL-terminated string of text, encoded in UTF-8 + * @extents: a #cairo_text_extents_t which to store the retrieved extents. + * + * Gets the extents for a string of text. The extents describe a + * user-space rectangle that encloses the "inked" portion of the text + * drawn at the origin (0,0) (as it would be drawn by cairo_show_text() + * if the cairo graphics state were set to the same font_face, + * font_matrix, ctm, and font_options as @scaled_font). Additionally, + * the x_advance and y_advance values indicate the amount by which the + * current point would be advanced by cairo_show_text(). + * + * Note that whitespace characters do not directly contribute to the + * size of the rectangle (extents.width and extents.height). They do + * contribute indirectly by changing the position of non-whitespace + * characters. In particular, trailing whitespace characters are + * likely to not affect the size of the rectangle, though they will + * affect the x_advance and y_advance values. + * + * Since: 1.2 + **/ +void +cairo_scaled_font_text_extents (cairo_scaled_font_t *scaled_font, + const char *utf8, + cairo_text_extents_t *extents) +{ + cairo_status_t status; + cairo_glyph_t *glyphs = NULL; + int num_glyphs; + + if (scaled_font->status) + goto ZERO_EXTENTS; + + if (utf8 == NULL) + goto ZERO_EXTENTS; + + status = cairo_scaled_font_text_to_glyphs (scaled_font, 0., 0., + utf8, -1, + &glyphs, &num_glyphs, + NULL, NULL, + NULL); + if (unlikely (status)) { + status = _cairo_scaled_font_set_error (scaled_font, status); + goto ZERO_EXTENTS; + } + + cairo_scaled_font_glyph_extents (scaled_font, glyphs, num_glyphs, extents); + free (glyphs); + + return; + +ZERO_EXTENTS: + extents->x_bearing = 0.0; + extents->y_bearing = 0.0; + extents->width = 0.0; + extents->height = 0.0; + extents->x_advance = 0.0; + extents->y_advance = 0.0; +} + +/** + * cairo_scaled_font_glyph_extents: + * @scaled_font: a #cairo_scaled_font_t + * @glyphs: an array of glyph IDs with X and Y offsets. + * @num_glyphs: the number of glyphs in the @glyphs array + * @extents: a #cairo_text_extents_t which to store the retrieved extents. + * + * Gets the extents for an array of glyphs. The extents describe a + * user-space rectangle that encloses the "inked" portion of the + * glyphs, (as they would be drawn by cairo_show_glyphs() if the cairo + * graphics state were set to the same font_face, font_matrix, ctm, + * and font_options as @scaled_font). Additionally, the x_advance and + * y_advance values indicate the amount by which the current point + * would be advanced by cairo_show_glyphs(). + * + * Note that whitespace glyphs do not contribute to the size of the + * rectangle (extents.width and extents.height). + * + * Since: 1.0 + **/ +void +cairo_scaled_font_glyph_extents (cairo_scaled_font_t *scaled_font, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_text_extents_t *extents) +{ + cairo_status_t status; + int i; + double min_x = 0.0, min_y = 0.0, max_x = 0.0, max_y = 0.0; + cairo_bool_t visible = FALSE; + cairo_scaled_glyph_t *scaled_glyph = NULL; + + extents->x_bearing = 0.0; + extents->y_bearing = 0.0; + extents->width = 0.0; + extents->height = 0.0; + extents->x_advance = 0.0; + extents->y_advance = 0.0; + + if (unlikely (scaled_font->status)) + goto ZERO_EXTENTS; + + if (num_glyphs == 0) + goto ZERO_EXTENTS; + + if (unlikely (num_glyphs < 0)) { + _cairo_error_throw (CAIRO_STATUS_NEGATIVE_COUNT); + /* XXX Can't propagate error */ + goto ZERO_EXTENTS; + } + + if (unlikely (glyphs == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NULL_POINTER); + /* XXX Can't propagate error */ + goto ZERO_EXTENTS; + } + + _cairo_scaled_font_freeze_cache (scaled_font); + + for (i = 0; i < num_glyphs; i++) { + double left, top, right, bottom; + + status = _cairo_scaled_glyph_lookup (scaled_font, + glyphs[i].index, + CAIRO_SCALED_GLYPH_INFO_METRICS, + NULL, /* foreground color */ + &scaled_glyph); + if (unlikely (status)) { + status = _cairo_scaled_font_set_error (scaled_font, status); + goto UNLOCK; + } + + /* "Ink" extents should skip "invisible" glyphs */ + if (scaled_glyph->metrics.width == 0 || scaled_glyph->metrics.height == 0) + continue; + + left = scaled_glyph->metrics.x_bearing + glyphs[i].x; + right = left + scaled_glyph->metrics.width; + top = scaled_glyph->metrics.y_bearing + glyphs[i].y; + bottom = top + scaled_glyph->metrics.height; + + if (!visible) { + visible = TRUE; + min_x = left; + max_x = right; + min_y = top; + max_y = bottom; + } else { + if (left < min_x) min_x = left; + if (right > max_x) max_x = right; + if (top < min_y) min_y = top; + if (bottom > max_y) max_y = bottom; + } + } + + if (visible) { + extents->x_bearing = min_x - glyphs[0].x; + extents->y_bearing = min_y - glyphs[0].y; + extents->width = max_x - min_x; + extents->height = max_y - min_y; + } else { + extents->x_bearing = 0.0; + extents->y_bearing = 0.0; + extents->width = 0.0; + extents->height = 0.0; + } + + if (num_glyphs) { + double x0, y0, x1, y1; + + x0 = glyphs[0].x; + y0 = glyphs[0].y; + + /* scaled_glyph contains the glyph for num_glyphs - 1 already. */ + x1 = glyphs[num_glyphs - 1].x + scaled_glyph->metrics.x_advance; + y1 = glyphs[num_glyphs - 1].y + scaled_glyph->metrics.y_advance; + + extents->x_advance = x1 - x0; + extents->y_advance = y1 - y0; + } else { + extents->x_advance = 0.0; + extents->y_advance = 0.0; + } + + UNLOCK: + _cairo_scaled_font_thaw_cache (scaled_font); + return; + +ZERO_EXTENTS: + extents->x_bearing = 0.0; + extents->y_bearing = 0.0; + extents->width = 0.0; + extents->height = 0.0; + extents->x_advance = 0.0; + extents->y_advance = 0.0; +} + +#define GLYPH_LUT_SIZE 64 +static cairo_status_t +cairo_scaled_font_text_to_glyphs_internal_cached (cairo_scaled_font_t *scaled_font, + double x, + double y, + const char *utf8, + cairo_glyph_t *glyphs, + cairo_text_cluster_t **clusters, + int num_chars) +{ + struct glyph_lut_elt { + unsigned long index; + double x_advance; + double y_advance; + } glyph_lut[GLYPH_LUT_SIZE]; + uint32_t glyph_lut_unicode[GLYPH_LUT_SIZE]; + cairo_status_t status; + const char *p; + int i; + + for (i = 0; i < GLYPH_LUT_SIZE; i++) + glyph_lut_unicode[i] = ~0U; + + p = utf8; + for (i = 0; i < num_chars; i++) { + int idx, num_bytes; + uint32_t unicode; + cairo_scaled_glyph_t *scaled_glyph; + struct glyph_lut_elt *glyph_slot; + + num_bytes = _cairo_utf8_get_char_validated (p, &unicode); + p += num_bytes; + + glyphs[i].x = x; + glyphs[i].y = y; + + idx = unicode % ARRAY_LENGTH (glyph_lut); + glyph_slot = &glyph_lut[idx]; + if (glyph_lut_unicode[idx] == unicode) { + glyphs[i].index = glyph_slot->index; + x += glyph_slot->x_advance; + y += glyph_slot->y_advance; + } else { + unsigned long g; + + g = scaled_font->backend->ucs4_to_index (scaled_font, unicode); + status = _cairo_scaled_glyph_lookup (scaled_font, + g, + CAIRO_SCALED_GLYPH_INFO_METRICS, + NULL, /* foreground color */ + &scaled_glyph); + if (unlikely (status)) + return status; + + x += scaled_glyph->metrics.x_advance; + y += scaled_glyph->metrics.y_advance; + + glyph_lut_unicode[idx] = unicode; + glyph_slot->index = g; + glyph_slot->x_advance = scaled_glyph->metrics.x_advance; + glyph_slot->y_advance = scaled_glyph->metrics.y_advance; + + glyphs[i].index = g; + } + + if (clusters) { + (*clusters)[i].num_bytes = num_bytes; + (*clusters)[i].num_glyphs = 1; + } + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +cairo_scaled_font_text_to_glyphs_internal_uncached (cairo_scaled_font_t *scaled_font, + double x, + double y, + const char *utf8, + cairo_glyph_t *glyphs, + cairo_text_cluster_t **clusters, + int num_chars) +{ + const char *p; + int i; + + p = utf8; + for (i = 0; i < num_chars; i++) { + unsigned long g; + int num_bytes; + uint32_t unicode; + cairo_scaled_glyph_t *scaled_glyph; + cairo_status_t status; + + num_bytes = _cairo_utf8_get_char_validated (p, &unicode); + p += num_bytes; + + glyphs[i].x = x; + glyphs[i].y = y; + + g = scaled_font->backend->ucs4_to_index (scaled_font, unicode); + + /* + * No advance needed for a single character string. So, let's speed up + * one-character strings by skipping glyph lookup. + */ + if (num_chars > 1) { + status = _cairo_scaled_glyph_lookup (scaled_font, + g, + CAIRO_SCALED_GLYPH_INFO_METRICS, + NULL, /* foreground color */ + &scaled_glyph); + if (unlikely (status)) + return status; + + x += scaled_glyph->metrics.x_advance; + y += scaled_glyph->metrics.y_advance; + } + + glyphs[i].index = g; + + if (clusters) { + (*clusters)[i].num_bytes = num_bytes; + (*clusters)[i].num_glyphs = 1; + } + } + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_scaled_font_text_to_glyphs: + * @scaled_font: a #cairo_scaled_font_t + * @x: X position to place first glyph + * @y: Y position to place first glyph + * @utf8: a string of text encoded in UTF-8 + * @utf8_len: length of @utf8 in bytes, or -1 if it is NUL-terminated + * @glyphs: pointer to array of glyphs to fill + * @num_glyphs: pointer to number of glyphs + * @clusters: pointer to array of cluster mapping information to fill, or %NULL + * @num_clusters: pointer to number of clusters, or %NULL + * @cluster_flags: pointer to location to store cluster flags corresponding to the + * output @clusters, or %NULL + * + * Converts UTF-8 text to an array of glyphs, optionally with cluster + * mapping, that can be used to render later using @scaled_font. + * + * If @glyphs initially points to a non-%NULL value, that array is used + * as a glyph buffer, and @num_glyphs should point to the number of glyph + * entries available there. If the provided glyph array is too short for + * the conversion, a new glyph array is allocated using cairo_glyph_allocate() + * and placed in @glyphs. Upon return, @num_glyphs always contains the + * number of generated glyphs. If the value @glyphs points to has changed + * after the call, the user is responsible for freeing the allocated glyph + * array using cairo_glyph_free(). This may happen even if the provided + * array was large enough. + * + * If @clusters is not %NULL, @num_clusters and @cluster_flags should not be %NULL, + * and cluster mapping will be computed. + * The semantics of how cluster array allocation works is similar to the glyph + * array. That is, + * if @clusters initially points to a non-%NULL value, that array is used + * as a cluster buffer, and @num_clusters should point to the number of cluster + * entries available there. If the provided cluster array is too short for + * the conversion, a new cluster array is allocated using cairo_text_cluster_allocate() + * and placed in @clusters. Upon return, @num_clusters always contains the + * number of generated clusters. If the value @clusters points at has changed + * after the call, the user is responsible for freeing the allocated cluster + * array using cairo_text_cluster_free(). This may happen even if the provided + * array was large enough. + * + * In the simplest case, @glyphs and @clusters can point to %NULL initially + * and a suitable array will be allocated. In code: + * + * cairo_status_t status; + * + * cairo_glyph_t *glyphs = NULL; + * int num_glyphs; + * cairo_text_cluster_t *clusters = NULL; + * int num_clusters; + * cairo_text_cluster_flags_t cluster_flags; + * + * status = cairo_scaled_font_text_to_glyphs (scaled_font, + * x, y, + * utf8, utf8_len, + * &glyphs, &num_glyphs, + * &clusters, &num_clusters, &cluster_flags); + * + * if (status == CAIRO_STATUS_SUCCESS) { + * cairo_show_text_glyphs (cr, + * utf8, utf8_len, + * glyphs, num_glyphs, + * clusters, num_clusters, cluster_flags); + * + * cairo_glyph_free (glyphs); + * cairo_text_cluster_free (clusters); + * } + * + * + * If no cluster mapping is needed: + * + * cairo_status_t status; + * + * cairo_glyph_t *glyphs = NULL; + * int num_glyphs; + * + * status = cairo_scaled_font_text_to_glyphs (scaled_font, + * x, y, + * utf8, utf8_len, + * &glyphs, &num_glyphs, + * NULL, NULL, + * NULL); + * + * if (status == CAIRO_STATUS_SUCCESS) { + * cairo_show_glyphs (cr, glyphs, num_glyphs); + * cairo_glyph_free (glyphs); + * } + * + * + * If stack-based glyph and cluster arrays are to be used for small + * arrays: + * + * cairo_status_t status; + * + * cairo_glyph_t stack_glyphs[40]; + * cairo_glyph_t *glyphs = stack_glyphs; + * int num_glyphs = sizeof (stack_glyphs) / sizeof (stack_glyphs[0]); + * cairo_text_cluster_t stack_clusters[40]; + * cairo_text_cluster_t *clusters = stack_clusters; + * int num_clusters = sizeof (stack_clusters) / sizeof (stack_clusters[0]); + * cairo_text_cluster_flags_t cluster_flags; + * + * status = cairo_scaled_font_text_to_glyphs (scaled_font, + * x, y, + * utf8, utf8_len, + * &glyphs, &num_glyphs, + * &clusters, &num_clusters, &cluster_flags); + * + * if (status == CAIRO_STATUS_SUCCESS) { + * cairo_show_text_glyphs (cr, + * utf8, utf8_len, + * glyphs, num_glyphs, + * clusters, num_clusters, cluster_flags); + * + * if (glyphs != stack_glyphs) + * cairo_glyph_free (glyphs); + * if (clusters != stack_clusters) + * cairo_text_cluster_free (clusters); + * } + * + * + * For details of how @clusters, @num_clusters, and @cluster_flags map input + * UTF-8 text to the output glyphs see cairo_show_text_glyphs(). + * + * The output values can be readily passed to cairo_show_text_glyphs() + * cairo_show_glyphs(), or related functions, assuming that the exact + * same @scaled_font is used for the operation. + * + * Return value: %CAIRO_STATUS_SUCCESS upon success, or an error status + * if the input values are wrong or if conversion failed. If the input + * values are correct but the conversion failed, the error status is also + * set on @scaled_font. + * + * Since: 1.8 + **/ +#define CACHING_THRESHOLD 16 +cairo_status_t +cairo_scaled_font_text_to_glyphs (cairo_scaled_font_t *scaled_font, + double x, + double y, + const char *utf8, + int utf8_len, + cairo_glyph_t **glyphs, + int *num_glyphs, + cairo_text_cluster_t **clusters, + int *num_clusters, + cairo_text_cluster_flags_t *cluster_flags) +{ + int num_chars = 0; + cairo_int_status_t status; + cairo_glyph_t *orig_glyphs; + cairo_text_cluster_t *orig_clusters; + + status = scaled_font->status; + if (unlikely (status)) + return status; + + /* A slew of sanity checks */ + + /* glyphs and num_glyphs can't be NULL */ + if (glyphs == NULL || + num_glyphs == NULL) { + status = _cairo_error (CAIRO_STATUS_NULL_POINTER); + goto BAIL; + } + + /* Special case for NULL and -1 */ + if (utf8 == NULL && utf8_len == -1) + utf8_len = 0; + + /* No NULLs for non-NULLs! */ + if ((utf8_len && utf8 == NULL) || + (clusters && num_clusters == NULL) || + (clusters && cluster_flags == NULL)) { + status = _cairo_error (CAIRO_STATUS_NULL_POINTER); + goto BAIL; + } + + /* A -1 for utf8_len means NUL-terminated */ + if (utf8_len == -1) + utf8_len = strlen (utf8); + + /* A NULL *glyphs means no prealloced glyphs array */ + if (glyphs && *glyphs == NULL) + *num_glyphs = 0; + + /* A NULL *clusters means no prealloced clusters array */ + if (clusters && *clusters == NULL) + *num_clusters = 0; + + if (!clusters && num_clusters) { + num_clusters = NULL; + } + + if (cluster_flags) { + *cluster_flags = FALSE; + } + + if (!clusters && cluster_flags) { + cluster_flags = NULL; + } + + /* Apart from that, no negatives */ + if (utf8_len < 0 || + *num_glyphs < 0 || + (num_clusters && *num_clusters < 0)) { + status = _cairo_error (CAIRO_STATUS_NEGATIVE_COUNT); + goto BAIL; + } + + if (utf8_len == 0) { + status = CAIRO_STATUS_SUCCESS; + goto BAIL; + } + + /* validate input so backend does not have to */ + status = _cairo_utf8_to_ucs4 (utf8, utf8_len, NULL, &num_chars); + if (unlikely (status)) + goto BAIL; + + _cairo_scaled_font_freeze_cache (scaled_font); + + orig_glyphs = *glyphs; + orig_clusters = clusters ? *clusters : NULL; + + if (scaled_font->backend->text_to_glyphs) { + status = scaled_font->backend->text_to_glyphs (scaled_font, x, y, + utf8, utf8_len, + glyphs, num_glyphs, + clusters, num_clusters, + cluster_flags); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) { + if (status == CAIRO_INT_STATUS_SUCCESS) { + /* The checks here are crude; we only should do them in + * user-font backend, but they don't hurt here. This stuff + * can be hard to get right. */ + + if (*num_glyphs < 0) { + status = _cairo_error (CAIRO_STATUS_NEGATIVE_COUNT); + goto DONE; + } + if (*num_glyphs != 0 && *glyphs == NULL) { + status = _cairo_error (CAIRO_STATUS_NULL_POINTER); + goto DONE; + } + + if (clusters) { + if (*num_clusters < 0) { + status = _cairo_error (CAIRO_STATUS_NEGATIVE_COUNT); + goto DONE; + } + if (*num_clusters != 0 && *clusters == NULL) { + status = _cairo_error (CAIRO_STATUS_NULL_POINTER); + goto DONE; + } + + /* Don't trust the backend, validate clusters! */ + status = + _cairo_validate_text_clusters (utf8, utf8_len, + *glyphs, *num_glyphs, + *clusters, *num_clusters, + *cluster_flags); + } + } + + goto DONE; + } + } + + if (*num_glyphs < num_chars) { + *glyphs = cairo_glyph_allocate (num_chars); + if (unlikely (*glyphs == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto DONE; + } + } + *num_glyphs = num_chars; + + if (clusters) { + if (*num_clusters < num_chars) { + *clusters = cairo_text_cluster_allocate (num_chars); + if (unlikely (*clusters == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto DONE; + } + } + *num_clusters = num_chars; + } + + if (num_chars > CACHING_THRESHOLD) + status = cairo_scaled_font_text_to_glyphs_internal_cached (scaled_font, + x, y, + utf8, + *glyphs, + clusters, + num_chars); + else + status = cairo_scaled_font_text_to_glyphs_internal_uncached (scaled_font, + x, y, + utf8, + *glyphs, + clusters, + num_chars); + + DONE: /* error that should be logged on scaled_font happened */ + _cairo_scaled_font_thaw_cache (scaled_font); + + if (unlikely (status)) { + *num_glyphs = 0; + if (*glyphs != orig_glyphs) { + cairo_glyph_free (*glyphs); + *glyphs = orig_glyphs; + } + + if (clusters) { + *num_clusters = 0; + if (*clusters != orig_clusters) { + cairo_text_cluster_free (*clusters); + *clusters = orig_clusters; + } + } + } + + return _cairo_scaled_font_set_error (scaled_font, status); + + BAIL: /* error with input arguments */ + + if (num_glyphs) + *num_glyphs = 0; + + if (num_clusters) + *num_clusters = 0; + + return status; +} + +static inline cairo_bool_t +_range_contains_glyph (const cairo_box_t *extents, + cairo_fixed_t left, + cairo_fixed_t top, + cairo_fixed_t right, + cairo_fixed_t bottom) +{ + if (left == right || top == bottom) + return FALSE; + + return right > extents->p1.x && + left < extents->p2.x && + bottom > extents->p1.y && + top < extents->p2.y; +} + +static cairo_status_t +_cairo_scaled_font_single_glyph_device_extents (cairo_scaled_font_t *scaled_font, + const cairo_glyph_t *glyph, + cairo_rectangle_int_t *extents) +{ + cairo_scaled_glyph_t *scaled_glyph; + cairo_status_t status; + + _cairo_scaled_font_freeze_cache (scaled_font); + status = _cairo_scaled_glyph_lookup (scaled_font, + glyph->index, + CAIRO_SCALED_GLYPH_INFO_METRICS, + NULL, /* foreground color */ + &scaled_glyph); + if (likely (status == CAIRO_STATUS_SUCCESS)) { + cairo_bool_t round_xy = _cairo_font_options_get_round_glyph_positions (&scaled_font->options) == CAIRO_ROUND_GLYPH_POS_ON; + cairo_box_t box; + cairo_fixed_t v; + + if (round_xy) + v = _cairo_fixed_from_int (_cairo_lround (glyph->x)); + else + v = _cairo_fixed_from_double (glyph->x); + box.p1.x = v + scaled_glyph->bbox.p1.x; + box.p2.x = v + scaled_glyph->bbox.p2.x; + + if (round_xy) + v = _cairo_fixed_from_int (_cairo_lround (glyph->y)); + else + v = _cairo_fixed_from_double (glyph->y); + box.p1.y = v + scaled_glyph->bbox.p1.y; + box.p2.y = v + scaled_glyph->bbox.p2.y; + + _cairo_box_round_to_rectangle (&box, extents); + } + _cairo_scaled_font_thaw_cache (scaled_font); + return status; +} + +/* + * Compute a device-space bounding box for the glyphs. + */ +cairo_status_t +_cairo_scaled_font_glyph_device_extents (cairo_scaled_font_t *scaled_font, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_rectangle_int_t *extents, + cairo_bool_t *overlap_out) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + cairo_box_t box = { { INT_MAX, INT_MAX }, { INT_MIN, INT_MIN }}; + cairo_scaled_glyph_t *glyph_cache[64]; + cairo_bool_t overlap = overlap_out ? FALSE : TRUE; + cairo_round_glyph_positions_t round_glyph_positions = _cairo_font_options_get_round_glyph_positions (&scaled_font->options); + int i; + + if (unlikely (scaled_font->status)) + return scaled_font->status; + + if (num_glyphs == 1) { + if (overlap_out) + *overlap_out = FALSE; + return _cairo_scaled_font_single_glyph_device_extents (scaled_font, + glyphs, + extents); + } + + _cairo_scaled_font_freeze_cache (scaled_font); + + memset (glyph_cache, 0, sizeof (glyph_cache)); + + for (i = 0; i < num_glyphs; i++) { + cairo_scaled_glyph_t *scaled_glyph; + cairo_fixed_t x, y, x1, y1, x2, y2; + int cache_index = glyphs[i].index % ARRAY_LENGTH (glyph_cache); + + scaled_glyph = glyph_cache[cache_index]; + if (scaled_glyph == NULL || + _cairo_scaled_glyph_index (scaled_glyph) != glyphs[i].index) + { + status = _cairo_scaled_glyph_lookup (scaled_font, + glyphs[i].index, + CAIRO_SCALED_GLYPH_INFO_METRICS, + NULL, /* foreground color */ + &scaled_glyph); + if (unlikely (status)) + break; + + glyph_cache[cache_index] = scaled_glyph; + } + + if (round_glyph_positions == CAIRO_ROUND_GLYPH_POS_ON) + x = _cairo_fixed_from_int (_cairo_lround (glyphs[i].x)); + else + x = _cairo_fixed_from_double (glyphs[i].x); + x1 = x + scaled_glyph->bbox.p1.x; + x2 = x + scaled_glyph->bbox.p2.x; + + if (round_glyph_positions == CAIRO_ROUND_GLYPH_POS_ON) + y = _cairo_fixed_from_int (_cairo_lround (glyphs[i].y)); + else + y = _cairo_fixed_from_double (glyphs[i].y); + y1 = y + scaled_glyph->bbox.p1.y; + y2 = y + scaled_glyph->bbox.p2.y; + + if (overlap == FALSE) + overlap = _range_contains_glyph (&box, x1, y1, x2, y2); + + if (x1 < box.p1.x) box.p1.x = x1; + if (x2 > box.p2.x) box.p2.x = x2; + if (y1 < box.p1.y) box.p1.y = y1; + if (y2 > box.p2.y) box.p2.y = y2; + } + + _cairo_scaled_font_thaw_cache (scaled_font); + if (unlikely (status)) + return _cairo_scaled_font_set_error (scaled_font, status); + + if (box.p1.x < box.p2.x) { + _cairo_box_round_to_rectangle (&box, extents); + } else { + extents->x = extents->y = 0; + extents->width = extents->height = 0; + } + + if (overlap_out != NULL) + *overlap_out = overlap; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_bool_t +_cairo_scaled_font_glyph_approximate_extents (cairo_scaled_font_t *scaled_font, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_rectangle_int_t *extents) +{ + double x0, x1, y0, y1, pad; + int i; + + /* If any of the factors are suspect (i.e. the font is broken), bail */ + if (scaled_font->fs_extents.max_x_advance == 0 || + scaled_font->fs_extents.height == 0 || + scaled_font->max_scale == 0) + { + return FALSE; + } + + assert (num_glyphs); + + x0 = x1 = glyphs[0].x; + y0 = y1 = glyphs[0].y; + for (i = 1; i < num_glyphs; i++) { + double g; + + g = glyphs[i].x; + if (g < x0) x0 = g; + if (g > x1) x1 = g; + + g = glyphs[i].y; + if (g < y0) y0 = g; + if (g > y1) y1 = g; + } + + pad = MAX(scaled_font->fs_extents.max_x_advance, + scaled_font->fs_extents.height); + pad *= scaled_font->max_scale; + + extents->x = floor (x0 - pad); + extents->width = ceil (x1 + pad) - extents->x; + extents->y = floor (y0 - pad); + extents->height = ceil (y1 + pad) - extents->y; + return TRUE; +} + +/* Add a single-device-unit rectangle to a path. */ +static cairo_status_t +_add_unit_rectangle_to_path (cairo_path_fixed_t *path, + cairo_fixed_t x, + cairo_fixed_t y) +{ + cairo_status_t status; + + status = _cairo_path_fixed_move_to (path, x, y); + if (unlikely (status)) + return status; + + status = _cairo_path_fixed_rel_line_to (path, + _cairo_fixed_from_int (1), + _cairo_fixed_from_int (0)); + if (unlikely (status)) + return status; + + status = _cairo_path_fixed_rel_line_to (path, + _cairo_fixed_from_int (0), + _cairo_fixed_from_int (1)); + if (unlikely (status)) + return status; + + status = _cairo_path_fixed_rel_line_to (path, + _cairo_fixed_from_int (-1), + _cairo_fixed_from_int (0)); + if (unlikely (status)) + return status; + + return _cairo_path_fixed_close_path (path); +} + +/** + * _trace_mask_to_path: + * @bitmap: An alpha mask (either %CAIRO_FORMAT_A1 or %CAIRO_FORMAT_A8) + * @path: An initialized path to hold the result + * + * Given a mask surface, (an alpha image), fill out the provided path + * so that when filled it would result in something that approximates + * the mask. + * + * Note: The current tracing code here is extremely primitive. It + * operates only on an A1 surface, (converting an A8 surface to A1 if + * necessary), and performs the tracing by drawing a little square + * around each pixel that is on in the mask. We do not pretend that + * this is a high-quality result. But we are leaving it up to someone + * who cares enough about getting a better result to implement + * something more sophisticated. + **/ +static cairo_status_t +_trace_mask_to_path (cairo_image_surface_t *mask, + cairo_path_fixed_t *path, + double tx, double ty) +{ + const uint8_t *row; + int rows, cols, bytes_per_row; + int x, y, bit; + double xoff, yoff; + cairo_fixed_t x0, y0; + cairo_fixed_t px, py; + cairo_status_t status; + + mask = _cairo_image_surface_coerce_to_format (mask, CAIRO_FORMAT_A1); + status = mask->base.status; + if (unlikely (status)) + return status; + + cairo_surface_get_device_offset (&mask->base, &xoff, &yoff); + x0 = _cairo_fixed_from_double (tx - xoff); + y0 = _cairo_fixed_from_double (ty - yoff); + + bytes_per_row = (mask->width + 7) / 8; + row = mask->data; + for (y = 0, rows = mask->height; rows--; row += mask->stride, y++) { + const uint8_t *byte_ptr = row; + x = 0; + py = _cairo_fixed_from_int (y); + for (cols = bytes_per_row; cols--; ) { + uint8_t byte = *byte_ptr++; + if (byte == 0) { + x += 8; + continue; + } + + byte = CAIRO_BITSWAP8_IF_LITTLE_ENDIAN (byte); + for (bit = 1 << 7; bit && x < mask->width; bit >>= 1, x++) { + if (byte & bit) { + px = _cairo_fixed_from_int (x); + status = _add_unit_rectangle_to_path (path, + px + x0, + py + y0); + if (unlikely (status)) + goto BAIL; + } + } + } + } + +BAIL: + cairo_surface_destroy (&mask->base); + + return status; +} + +cairo_status_t +_cairo_scaled_font_glyph_path (cairo_scaled_font_t *scaled_font, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_path_fixed_t *path) +{ + cairo_int_status_t status; + int i; + + status = scaled_font->status; + if (unlikely (status)) + return status; + + _cairo_scaled_font_freeze_cache (scaled_font); + for (i = 0; i < num_glyphs; i++) { + cairo_scaled_glyph_t *scaled_glyph; + + status = _cairo_scaled_glyph_lookup (scaled_font, + glyphs[i].index, + CAIRO_SCALED_GLYPH_INFO_PATH, + NULL, /* foreground color */ + &scaled_glyph); + if (status == CAIRO_INT_STATUS_SUCCESS) { + status = _cairo_path_fixed_append (path, + scaled_glyph->path, + _cairo_fixed_from_double (glyphs[i].x), + _cairo_fixed_from_double (glyphs[i].y)); + + } else if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + /* If the font is incapable of providing a path, then we'll + * have to trace our own from a surface. + */ + status = _cairo_scaled_glyph_lookup (scaled_font, + glyphs[i].index, + CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + if (unlikely (status)) + goto BAIL; + + status = _trace_mask_to_path (scaled_glyph->surface, path, + glyphs[i].x, glyphs[i].y); + } + + if (unlikely (status)) + goto BAIL; + } + BAIL: + _cairo_scaled_font_thaw_cache (scaled_font); + + return _cairo_scaled_font_set_error (scaled_font, status); +} + +/** + * _cairo_scaled_glyph_set_metrics: + * @scaled_glyph: a #cairo_scaled_glyph_t + * @scaled_font: a #cairo_scaled_font_t + * @fs_metrics: a #cairo_text_extents_t in font space + * + * _cairo_scaled_glyph_set_metrics() stores user space metrics + * for the specified glyph given font space metrics. It is + * called by the font backend when initializing a glyph with + * %CAIRO_SCALED_GLYPH_INFO_METRICS. + **/ +void +_cairo_scaled_glyph_set_metrics (cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_font_t *scaled_font, + cairo_text_extents_t *fs_metrics) +{ + cairo_bool_t first = TRUE; + double hm, wm; + double min_user_x = 0.0, max_user_x = 0.0, min_user_y = 0.0, max_user_y = 0.0; + double min_device_x = 0.0, max_device_x = 0.0, min_device_y = 0.0, max_device_y = 0.0; + double device_x_advance, device_y_advance; + + scaled_glyph->fs_metrics = *fs_metrics; + + for (hm = 0.0; hm <= 1.0; hm += 1.0) + for (wm = 0.0; wm <= 1.0; wm += 1.0) { + double x, y; + + /* Transform this corner to user space */ + x = fs_metrics->x_bearing + fs_metrics->width * wm; + y = fs_metrics->y_bearing + fs_metrics->height * hm; + cairo_matrix_transform_point (&scaled_font->font_matrix, + &x, &y); + if (first) { + min_user_x = max_user_x = x; + min_user_y = max_user_y = y; + } else { + if (x < min_user_x) min_user_x = x; + if (x > max_user_x) max_user_x = x; + if (y < min_user_y) min_user_y = y; + if (y > max_user_y) max_user_y = y; + } + + /* Transform this corner to device space from glyph origin */ + x = fs_metrics->x_bearing + fs_metrics->width * wm; + y = fs_metrics->y_bearing + fs_metrics->height * hm; + cairo_matrix_transform_distance (&scaled_font->scale, + &x, &y); + + if (first) { + min_device_x = max_device_x = x; + min_device_y = max_device_y = y; + } else { + if (x < min_device_x) min_device_x = x; + if (x > max_device_x) max_device_x = x; + if (y < min_device_y) min_device_y = y; + if (y > max_device_y) max_device_y = y; + } + first = FALSE; + } + scaled_glyph->metrics.x_bearing = min_user_x; + scaled_glyph->metrics.y_bearing = min_user_y; + scaled_glyph->metrics.width = max_user_x - min_user_x; + scaled_glyph->metrics.height = max_user_y - min_user_y; + + scaled_glyph->metrics.x_advance = fs_metrics->x_advance; + scaled_glyph->metrics.y_advance = fs_metrics->y_advance; + cairo_matrix_transform_distance (&scaled_font->font_matrix, + &scaled_glyph->metrics.x_advance, + &scaled_glyph->metrics.y_advance); + + device_x_advance = fs_metrics->x_advance; + device_y_advance = fs_metrics->y_advance; + cairo_matrix_transform_distance (&scaled_font->scale, + &device_x_advance, + &device_y_advance); + + scaled_glyph->bbox.p1.x = _cairo_fixed_from_double (min_device_x); + scaled_glyph->bbox.p1.y = _cairo_fixed_from_double (min_device_y); + scaled_glyph->bbox.p2.x = _cairo_fixed_from_double (max_device_x); + scaled_glyph->bbox.p2.y = _cairo_fixed_from_double (max_device_y); + + scaled_glyph->x_advance = _cairo_lround (device_x_advance); + scaled_glyph->y_advance = _cairo_lround (device_y_advance); + + scaled_glyph->has_info |= CAIRO_SCALED_GLYPH_INFO_METRICS; +} + +void +_cairo_scaled_glyph_set_surface (cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_font_t *scaled_font, + cairo_image_surface_t *surface) +{ + if (scaled_glyph->surface != NULL) + cairo_surface_destroy (&scaled_glyph->surface->base); + + /* sanity check the backend glyph contents */ + _cairo_debug_check_image_surface_is_defined (&surface->base); + scaled_glyph->surface = surface; + + if (surface != NULL) + scaled_glyph->has_info |= CAIRO_SCALED_GLYPH_INFO_SURFACE; + else + scaled_glyph->has_info &= ~CAIRO_SCALED_GLYPH_INFO_SURFACE; +} + +void +_cairo_scaled_glyph_set_path (cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_font_t *scaled_font, + cairo_path_fixed_t *path) +{ + if (scaled_glyph->path != NULL) + _cairo_path_fixed_destroy (scaled_glyph->path); + + scaled_glyph->path = path; + + if (path != NULL) + scaled_glyph->has_info |= CAIRO_SCALED_GLYPH_INFO_PATH; + else + scaled_glyph->has_info &= ~CAIRO_SCALED_GLYPH_INFO_PATH; +} + +/** + * _cairo_scaled_glyph_set_recording_surface: + * @scaled_glyph: a #cairo_scaled_glyph_t + * @scaled_font: a #cairo_scaled_font_t + * @recording_surface: The recording surface + * @foreground_color: The foreground color that was used to record the + * glyph, or NULL if foreground color not required. + * + * Sets the surface that was used to record the glyph. + **/ +void +_cairo_scaled_glyph_set_recording_surface (cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_font_t *scaled_font, + cairo_surface_t *recording_surface, + const cairo_color_t * foreground_color) +{ + if (scaled_glyph->recording_surface != NULL) { + cairo_surface_finish (scaled_glyph->recording_surface); + cairo_surface_destroy (scaled_glyph->recording_surface); + } + + scaled_glyph->recording_surface = recording_surface; + scaled_glyph->recording_uses_foreground_color = foreground_color != NULL; + if (foreground_color) + scaled_glyph->foreground_color = *foreground_color; + + if (recording_surface != NULL) + scaled_glyph->has_info |= CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE; + else + scaled_glyph->has_info &= ~CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE; +} + +/** + * _cairo_scaled_glyph_set_color_surface: + * @scaled_glyph: a #cairo_scaled_glyph_t + * @scaled_font: a #cairo_scaled_font_t + * @surface: The image surface + * @foreground_marker_color: The foreground color that was used to + * substitute the foreground_marker, or NULL if foreground_marker not + * used when rendering the surface color. + * + * Sets the color surface of the glyph. + **/ +void +_cairo_scaled_glyph_set_color_surface (cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_font_t *scaled_font, + cairo_image_surface_t *surface, + const cairo_color_t *foreground_marker_color) +{ + if (scaled_glyph->color_surface != NULL) + cairo_surface_destroy (&scaled_glyph->color_surface->base); + + /* sanity check the backend glyph contents */ + _cairo_debug_check_image_surface_is_defined (&surface->base); + scaled_glyph->color_surface = surface; + scaled_glyph->recording_uses_foreground_marker = foreground_marker_color != NULL; + if (foreground_marker_color) + scaled_glyph->foreground_color = *foreground_marker_color; + + if (surface != NULL) + scaled_glyph->has_info |= CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE; + else + scaled_glyph->has_info &= ~CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE; +} + +/* _cairo_hash_table_random_entry () predicate. To avoid race conditions, + * the font is locked when tested. The font is unlocked in + * _cairo_scaled_glyph_page_pluck. */ +static cairo_bool_t +_cairo_scaled_glyph_page_can_remove (const void *closure) +{ + const cairo_scaled_glyph_page_t *page = closure; + cairo_scaled_font_t *scaled_font; + + scaled_font = page->scaled_font; + + if (!CAIRO_MUTEX_TRY_LOCK (scaled_font->mutex)) + return FALSE; + + if (scaled_font->cache_frozen != 0) { + CAIRO_MUTEX_UNLOCK (scaled_font->mutex); + return FALSE; + } + + return TRUE; +} + +static cairo_status_t +_cairo_scaled_font_allocate_glyph (cairo_scaled_font_t *scaled_font, + cairo_scaled_glyph_t **scaled_glyph) +{ + cairo_scaled_glyph_page_t *page; + cairo_status_t status; + + assert (scaled_font->cache_frozen); + + /* only the first page in the list may contain available slots */ + if (! cairo_list_is_empty (&scaled_font->glyph_pages)) { + page = cairo_list_last_entry (&scaled_font->glyph_pages, + cairo_scaled_glyph_page_t, + link); + if (page->num_glyphs < CAIRO_SCALED_GLYPH_PAGE_SIZE) { + *scaled_glyph = &page->glyphs[page->num_glyphs++]; + return CAIRO_STATUS_SUCCESS; + } + } + + page = _cairo_calloc (sizeof (cairo_scaled_glyph_page_t)); + if (unlikely (page == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + page->cache_entry.hash = (uintptr_t) scaled_font; + page->scaled_font = scaled_font; + page->cache_entry.size = 1; /* XXX occupancy weighting? */ + page->num_glyphs = 0; + + CAIRO_MUTEX_LOCK (_cairo_scaled_glyph_page_cache_mutex); + if (scaled_font->global_cache_frozen == FALSE) { + if (unlikely (cairo_scaled_glyph_page_cache.hash_table == NULL)) { + status = _cairo_cache_init (&cairo_scaled_glyph_page_cache, + NULL, + _cairo_scaled_glyph_page_can_remove, + _cairo_scaled_glyph_page_pluck, + MAX_GLYPH_PAGES_CACHED); + if (unlikely (status)) { + CAIRO_MUTEX_UNLOCK (_cairo_scaled_glyph_page_cache_mutex); + free (page); + return status; + } + } + + _cairo_cache_freeze (&cairo_scaled_glyph_page_cache); + scaled_font->global_cache_frozen = TRUE; + } + + status = _cairo_cache_insert (&cairo_scaled_glyph_page_cache, + &page->cache_entry); + CAIRO_MUTEX_UNLOCK (_cairo_scaled_glyph_page_cache_mutex); + if (unlikely (status)) { + free (page); + return status; + } + + cairo_list_add_tail (&page->link, &scaled_font->glyph_pages); + + *scaled_glyph = &page->glyphs[page->num_glyphs++]; + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_scaled_font_free_last_glyph (cairo_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph) +{ + cairo_scaled_glyph_page_t *page; + + assert (scaled_font->cache_frozen); + assert (! cairo_list_is_empty (&scaled_font->glyph_pages)); + page = cairo_list_last_entry (&scaled_font->glyph_pages, + cairo_scaled_glyph_page_t, + link); + assert (scaled_glyph == &page->glyphs[page->num_glyphs-1]); + + _cairo_scaled_glyph_fini (scaled_font, scaled_glyph); + + if (--page->num_glyphs == 0) { + _cairo_scaled_font_thaw_cache (scaled_font); + CAIRO_MUTEX_LOCK (scaled_font->mutex); + + CAIRO_MUTEX_LOCK (_cairo_scaled_glyph_page_cache_mutex); + /* Temporarily disconnect callback to avoid recursive locking */ + cairo_scaled_glyph_page_cache.entry_destroy = NULL; + _cairo_cache_remove (&cairo_scaled_glyph_page_cache, + &page->cache_entry); + _cairo_scaled_glyph_page_destroy (scaled_font, page); + cairo_scaled_glyph_page_cache.entry_destroy = _cairo_scaled_glyph_page_pluck; + CAIRO_MUTEX_UNLOCK (_cairo_scaled_glyph_page_cache_mutex); + + CAIRO_MUTEX_UNLOCK (scaled_font->mutex); + _cairo_scaled_font_freeze_cache (scaled_font); + } +} + +/** + * _cairo_scaled_glyph_lookup: + * @scaled_font: a #cairo_scaled_font_t + * @index: the glyph to create + * @info: a #cairo_scaled_glyph_info_t marking which portions of + * the glyph should be filled in. + * @foreground_color - foreground color to use when rendering color + * fonts. Use NULL if not requesting + * CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE or + * CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE, or foreground color is + * unknown. + * @scaled_glyph_ret: a #cairo_scaled_glyph_t where the glyph + * is returned. + * + * If the desired info is not available, (for example, when trying to + * get INFO_PATH with a bitmapped font), this function will return + * %CAIRO_INT_STATUS_UNSUPPORTED. + * + * Note: This function must be called with the scaled font frozen, and it must + * remain frozen for as long as the @scaled_glyph_ret is alive. (If the scaled + * font was not frozen, then there is no guarantee that the glyph would not be + * evicted before you tried to access it.) See + * _cairo_scaled_font_freeze_cache() and _cairo_scaled_font_thaw_cache(). + * + * Returns: a glyph with the requested portions filled in. Glyph + * lookup is cached and glyph will be automatically freed along + * with the scaled_font so no explicit free is required. + * @info can be one or more of: + * %CAIRO_SCALED_GLYPH_INFO_METRICS - glyph metrics and bounding box + * %CAIRO_SCALED_GLYPH_INFO_SURFACE - surface holding glyph image + * %CAIRO_SCALED_GLYPH_INFO_PATH - path holding glyph outline in device space + * %CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE - surface holding recording of glyph + * %CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE - surface holding color glyph image + **/ +cairo_int_status_t +_cairo_scaled_glyph_lookup (cairo_scaled_font_t *scaled_font, + unsigned long index, + cairo_scaled_glyph_info_t info, + const cairo_color_t *foreground_color, + cairo_scaled_glyph_t **scaled_glyph_ret) +{ + cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS; + cairo_scaled_glyph_t *scaled_glyph; + cairo_scaled_glyph_info_t need_info; + cairo_hash_entry_t key; + + *scaled_glyph_ret = NULL; + + if (unlikely (scaled_font->status)) + return scaled_font->status; + + assert (CAIRO_MUTEX_IS_LOCKED(scaled_font->mutex)); + assert (scaled_font->cache_frozen); + + if (CAIRO_INJECT_FAULT ()) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (foreground_color == NULL) + foreground_color = CAIRO_COLOR_BLACK; + + /* + * Check cache for glyph + */ + key.hash = index; + scaled_glyph = _cairo_hash_table_lookup (scaled_font->glyphs, &key); + if (scaled_glyph == NULL) { + status = _cairo_scaled_font_allocate_glyph (scaled_font, &scaled_glyph); + if (unlikely (status)) + goto err; + + memset (scaled_glyph, 0, sizeof (cairo_scaled_glyph_t)); + _cairo_scaled_glyph_set_index (scaled_glyph, index); + cairo_list_init (&scaled_glyph->dev_privates); + + /* ask backend to initialize metrics and shape fields */ + status = + scaled_font->backend->scaled_glyph_init (scaled_font, + scaled_glyph, + info | CAIRO_SCALED_GLYPH_INFO_METRICS, + foreground_color); + if (unlikely (status)) { + _cairo_scaled_font_free_last_glyph (scaled_font, scaled_glyph); + goto err; + } + + status = _cairo_hash_table_insert (scaled_font->glyphs, + &scaled_glyph->hash_entry); + if (unlikely (status)) { + _cairo_scaled_font_free_last_glyph (scaled_font, scaled_glyph); + goto err; + } + } + + /* + * Check and see if the glyph, as provided, + * already has the requested data and amend it if not + */ + need_info = info & ~scaled_glyph->has_info; + + /* If this is not a color glyph, don't try loading the color surface again. */ + if ((need_info & CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) && + scaled_glyph->color_glyph_set && !scaled_glyph->color_glyph) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* If requesting a color surface or recording for a glyph that has + * used the foreground color to render the recording, and the + * foreground color has changed, request a new recording. */ + if ((info & (CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE | CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE)) && + scaled_glyph->recording_uses_foreground_color && + !_cairo_color_equal (foreground_color, &scaled_glyph->foreground_color)) + { + need_info |= CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE; + } + + /* If requesting a color surface for a glyph that has + * used the foreground color to render the color_surface, and the + * foreground color has changed, request a new image. */ + if (info & CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE && + (scaled_glyph->recording_uses_foreground_marker || scaled_glyph->recording_uses_foreground_color) && + !_cairo_color_equal (foreground_color, &scaled_glyph->foreground_color)) + { + need_info |= CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE; + } + + if (need_info) { + status = scaled_font->backend->scaled_glyph_init (scaled_font, + scaled_glyph, + need_info, + foreground_color); + if (unlikely (status)) + goto err; + + /* Don't trust the scaled_glyph_init() return value, the font + * backend may not even know about some of the info. For example, + * no backend other than the user-fonts knows about recording-surface + * glyph info. */ + if (info & ~scaled_glyph->has_info) + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + *scaled_glyph_ret = scaled_glyph; + return CAIRO_STATUS_SUCCESS; + +err: + /* It's not an error for the backend to not support the info we want. */ + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + status = _cairo_scaled_font_set_error (scaled_font, status); + return status; +} + +double +_cairo_scaled_font_get_max_scale (cairo_scaled_font_t *scaled_font) +{ + return scaled_font->max_scale; +} + +/** + * cairo_scaled_font_get_font_face: + * @scaled_font: a #cairo_scaled_font_t + * + * Gets the font face that this scaled font uses. This might be the + * font face passed to cairo_scaled_font_create(), but this does not + * hold true for all possible cases. + * + * Return value: The #cairo_font_face_t with which @scaled_font was + * created. This object is owned by cairo. To keep a reference to it, + * you must call cairo_scaled_font_reference(). + * + * Since: 1.2 + **/ +cairo_font_face_t * +cairo_scaled_font_get_font_face (cairo_scaled_font_t *scaled_font) +{ + if (scaled_font->status) + return (cairo_font_face_t*) &_cairo_font_face_nil; + + if (scaled_font->original_font_face != NULL) + return scaled_font->original_font_face; + + return scaled_font->font_face; +} + +/** + * cairo_scaled_font_get_font_matrix: + * @scaled_font: a #cairo_scaled_font_t + * @font_matrix: return value for the matrix + * + * Stores the font matrix with which @scaled_font was created into + * @matrix. + * + * Since: 1.2 + **/ +void +cairo_scaled_font_get_font_matrix (cairo_scaled_font_t *scaled_font, + cairo_matrix_t *font_matrix) +{ + if (scaled_font->status) { + cairo_matrix_init_identity (font_matrix); + return; + } + + *font_matrix = scaled_font->font_matrix; +} + +/** + * cairo_scaled_font_get_ctm: + * @scaled_font: a #cairo_scaled_font_t + * @ctm: return value for the CTM + * + * Stores the CTM with which @scaled_font was created into @ctm. + * Note that the translation offsets (x0, y0) of the CTM are ignored + * by cairo_scaled_font_create(). So, the matrix this + * function returns always has 0,0 as x0,y0. + * + * Since: 1.2 + **/ +void +cairo_scaled_font_get_ctm (cairo_scaled_font_t *scaled_font, + cairo_matrix_t *ctm) +{ + if (scaled_font->status) { + cairo_matrix_init_identity (ctm); + return; + } + + *ctm = scaled_font->ctm; +} + +/** + * cairo_scaled_font_get_scale_matrix: + * @scaled_font: a #cairo_scaled_font_t + * @scale_matrix: return value for the matrix + * + * Stores the scale matrix of @scaled_font into @matrix. + * The scale matrix is product of the font matrix and the ctm + * associated with the scaled font, and hence is the matrix mapping from + * font space to device space. + * + * Since: 1.8 + **/ +void +cairo_scaled_font_get_scale_matrix (cairo_scaled_font_t *scaled_font, + cairo_matrix_t *scale_matrix) +{ + if (scaled_font->status) { + cairo_matrix_init_identity (scale_matrix); + return; + } + + *scale_matrix = scaled_font->scale; +} + +/** + * cairo_scaled_font_get_font_options: + * @scaled_font: a #cairo_scaled_font_t + * @options: return value for the font options + * + * Stores the font options with which @scaled_font was created into + * @options. + * + * Since: 1.2 + **/ +void +cairo_scaled_font_get_font_options (cairo_scaled_font_t *scaled_font, + cairo_font_options_t *options) +{ + if (cairo_font_options_status (options)) + return; + + if (scaled_font->status) { + _cairo_font_options_init_default (options); + return; + } + + _cairo_font_options_fini (options); + _cairo_font_options_init_copy (options, &scaled_font->options); +} + +cairo_bool_t +_cairo_scaled_font_has_color_glyphs (cairo_scaled_font_t *scaled_font) +{ + if (scaled_font->backend != NULL && scaled_font->backend->has_color_glyphs != NULL) + return scaled_font->backend->has_color_glyphs (scaled_font); + else + return FALSE; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-script-private.h b/local/recipes/libs/cairo/source/src/cairo-script-private.h new file mode 100644 index 0000000000..989401244e --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-script-private.h @@ -0,0 +1,57 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_SCRIPT_PRIVATE_H +#define CAIRO_SCRIPT_PRIVATE_H + +#include "cairo.h" +#include "cairo-script.h" + +#include "cairo-compiler-private.h" +#include "cairo-output-stream-private.h" +#include "cairo-types-private.h" + +CAIRO_BEGIN_DECLS + +cairo_private cairo_device_t * +_cairo_script_context_create_internal (cairo_output_stream_t *stream); + +cairo_private void +_cairo_script_context_attach_snapshots (cairo_device_t *device, + cairo_bool_t enable); + +CAIRO_END_DECLS + +#endif /* CAIRO_SCRIPT_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-script-surface.c b/local/recipes/libs/cairo/source/src/cairo-script-surface.c new file mode 100644 index 0000000000..6d25acd385 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-script-surface.c @@ -0,0 +1,4086 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + */ + +/* The script surface is one that records all operations performed on + * it in the form of a procedural script, similar in fashion to + * PostScript but using Cairo's imaging model. In essence, this is + * equivalent to the recording-surface, but as there is no impedance mismatch + * between Cairo and CairoScript, we can generate output immediately + * without having to copy and hold the data in memory. + */ + +/** + * SECTION:cairo-script + * @Title: Script Surfaces + * @Short_Description: Rendering to replayable scripts + * @See_Also: #cairo_surface_t + * + * The script surface provides the ability to render to a native + * script that matches the cairo drawing model. The scripts can + * be replayed using tools under the util/cairo-script directory, + * or with cairo-perf-trace. + **/ + +/** + * CAIRO_HAS_SCRIPT_SURFACE: + * + * Defined if the script surface backend is available. + * The script surface backend is always built in since 1.12. + * + * Since: 1.12 + **/ + + +#include "cairoint.h" + +#include "cairo-script.h" +#include "cairo-script-private.h" + +#include "cairo-analysis-surface-private.h" +#include "cairo-default-context-private.h" +#include "cairo-device-private.h" +#include "cairo-error-private.h" +#include "cairo-list-inline.h" +#include "cairo-image-surface-private.h" +#include "cairo-output-stream-private.h" +#include "cairo-pattern-private.h" +#include "cairo-recording-surface-inline.h" +#include "cairo-scaled-font-private.h" +#include "cairo-surface-clipper-private.h" +#include "cairo-surface-snapshot-inline.h" +#include "cairo-surface-subsurface-private.h" +#include "cairo-surface-wrapper-private.h" + +#if CAIRO_HAS_FT_FONT +#include "cairo-ft-private.h" +#endif + +#include + +#ifdef WORDS_BIGENDIAN +#define to_be32(x) x +#else +#define to_be32(x) bswap_32(x) +#endif + +#define _cairo_output_stream_puts(S, STR) \ + _cairo_output_stream_write ((S), (STR), strlen (STR)) + +#define static cairo_warn static + +typedef struct _cairo_script_context cairo_script_context_t; +typedef struct _cairo_script_surface cairo_script_surface_t; +typedef struct _cairo_script_implicit_context cairo_script_implicit_context_t; +typedef struct _cairo_script_font cairo_script_font_t; + +typedef struct _operand { + enum { + SURFACE, + DEFERRED, + } type; + cairo_list_t link; +} operand_t; + + +struct deferred_finish { + cairo_list_t link; + operand_t operand; +}; + +struct _cairo_script_context { + cairo_device_t base; + + int active; + int attach_snapshots; + + cairo_bool_t owns_stream; + cairo_output_stream_t *stream; + cairo_script_mode_t mode; + + struct _bitmap { + unsigned long min; + unsigned long count; + unsigned int map[64]; + struct _bitmap *next; + } surface_id, font_id; + + cairo_list_t operands; + cairo_list_t deferred; + + cairo_list_t fonts; + cairo_list_t defines; +}; + +struct _cairo_script_font { + cairo_scaled_font_private_t base; + + cairo_bool_t has_sfnt; + unsigned long id; + unsigned long subset_glyph_index; + cairo_list_t link; + cairo_scaled_font_t *parent; +}; + +struct _cairo_script_implicit_context { + cairo_operator_t current_operator; + cairo_fill_rule_t current_fill_rule; + double current_tolerance; + cairo_antialias_t current_antialias; + cairo_stroke_style_t current_style; + cairo_pattern_union_t current_source; + cairo_matrix_t current_ctm; + cairo_matrix_t current_stroke_matrix; + cairo_matrix_t current_font_matrix; + cairo_font_options_t current_font_options; + cairo_scaled_font_t *current_scaled_font; + cairo_path_fixed_t current_path; + cairo_bool_t has_clip; +}; + +struct _cairo_script_surface { + cairo_surface_t base; + + cairo_surface_wrapper_t wrapper; + + cairo_surface_clipper_t clipper; + + operand_t operand; + cairo_bool_t emitted; + cairo_bool_t defined; + cairo_bool_t active; + + double width, height; + + /* implicit flattened context */ + cairo_script_implicit_context_t cr; +}; + +static const cairo_surface_backend_t _cairo_script_surface_backend; + +static cairo_script_surface_t * +_cairo_script_surface_create_internal (cairo_script_context_t *ctx, + cairo_content_t content, + cairo_rectangle_t *extents, + cairo_surface_t *passthrough); + +static void +_cairo_script_scaled_font_fini (cairo_scaled_font_private_t *abstract_private, + cairo_scaled_font_t *scaled_font); + +static void +_cairo_script_implicit_context_init (cairo_script_implicit_context_t *cr); + +static void +_cairo_script_implicit_context_reset (cairo_script_implicit_context_t *cr); + +static void +_bitmap_release_id (struct _bitmap *b, unsigned long token) +{ + struct _bitmap **prev = NULL; + + do { + if (token < b->min + sizeof (b->map) * CHAR_BIT) { + unsigned int bit, elem; + + token -= b->min; + elem = token / (sizeof (b->map[0]) * CHAR_BIT); + bit = token % (sizeof (b->map[0]) * CHAR_BIT); + b->map[elem] &= ~(1 << bit); + if (! --b->count && prev) { + *prev = b->next; + free (b); + } + return; + } + prev = &b->next; + b = b->next; + } while (b != NULL); +} + +static cairo_status_t +_bitmap_next_id (struct _bitmap *b, + unsigned long *id) +{ + struct _bitmap *bb, **prev = NULL; + unsigned long min = 0; + + do { + if (b->min != min) + break; + + if (b->count < sizeof (b->map) * CHAR_BIT) { + unsigned int n, m, bit; + for (n = 0; n < ARRAY_LENGTH (b->map); n++) { + if (b->map[n] == (unsigned int) -1) + continue; + + for (m=0, bit=1; mmap[0])*CHAR_BIT; m++, bit<<=1) { + if ((b->map[n] & bit) == 0) { + b->map[n] |= bit; + b->count++; + *id = n * sizeof (b->map[0])*CHAR_BIT + m + b->min; + return CAIRO_STATUS_SUCCESS; + } + } + } + } + min += sizeof (b->map) * CHAR_BIT; + + prev = &b->next; + b = b->next; + } while (b != NULL); + assert (prev != NULL); + + bb = _cairo_calloc (sizeof (struct _bitmap)); + if (unlikely (bb == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + *prev = bb; + bb->next = b; + bb->min = min; + bb->count = 1; + bb->map[0] = 0x1; + memset (bb->map + 1, 0, sizeof (bb->map) - sizeof (bb->map[0])); + *id = min; + + return CAIRO_STATUS_SUCCESS; +} + +static void +_bitmap_fini (struct _bitmap *b) +{ + while (b != NULL) { + struct _bitmap *next = b->next; + free (b); + b = next; + } +} + +static const char * +_direction_to_string (cairo_bool_t backward) +{ + static const char *names[] = { + "FORWARD", + "BACKWARD" + }; + assert (backward < ARRAY_LENGTH (names)); + return names[backward]; +} + +static const char * +_operator_to_string (cairo_operator_t op) +{ + static const char *names[] = { + "CLEAR", /* CAIRO_OPERATOR_CLEAR */ + + "SOURCE", /* CAIRO_OPERATOR_SOURCE */ + "OVER", /* CAIRO_OPERATOR_OVER */ + "IN", /* CAIRO_OPERATOR_IN */ + "OUT", /* CAIRO_OPERATOR_OUT */ + "ATOP", /* CAIRO_OPERATOR_ATOP */ + + "DEST", /* CAIRO_OPERATOR_DEST */ + "DEST_OVER", /* CAIRO_OPERATOR_DEST_OVER */ + "DEST_IN", /* CAIRO_OPERATOR_DEST_IN */ + "DEST_OUT", /* CAIRO_OPERATOR_DEST_OUT */ + "DEST_ATOP", /* CAIRO_OPERATOR_DEST_ATOP */ + + "XOR", /* CAIRO_OPERATOR_XOR */ + "ADD", /* CAIRO_OPERATOR_ADD */ + "SATURATE", /* CAIRO_OPERATOR_SATURATE */ + + "MULTIPLY", /* CAIRO_OPERATOR_MULTIPLY */ + "SCREEN", /* CAIRO_OPERATOR_SCREEN */ + "OVERLAY", /* CAIRO_OPERATOR_OVERLAY */ + "DARKEN", /* CAIRO_OPERATOR_DARKEN */ + "LIGHTEN", /* CAIRO_OPERATOR_LIGHTEN */ + "DODGE", /* CAIRO_OPERATOR_COLOR_DODGE */ + "BURN", /* CAIRO_OPERATOR_COLOR_BURN */ + "HARD_LIGHT", /* CAIRO_OPERATOR_HARD_LIGHT */ + "SOFT_LIGHT", /* CAIRO_OPERATOR_SOFT_LIGHT */ + "DIFFERENCE", /* CAIRO_OPERATOR_DIFFERENCE */ + "EXCLUSION", /* CAIRO_OPERATOR_EXCLUSION */ + "HSL_HUE", /* CAIRO_OPERATOR_HSL_HUE */ + "HSL_SATURATION", /* CAIRO_OPERATOR_HSL_SATURATION */ + "HSL_COLOR", /* CAIRO_OPERATOR_HSL_COLOR */ + "HSL_LUMINOSITY" /* CAIRO_OPERATOR_HSL_LUMINOSITY */ + }; + assert (op < ARRAY_LENGTH (names)); + return names[op]; +} + +static const char * +_extend_to_string (cairo_extend_t extend) +{ + static const char *names[] = { + "EXTEND_NONE", /* CAIRO_EXTEND_NONE */ + "EXTEND_REPEAT", /* CAIRO_EXTEND_REPEAT */ + "EXTEND_REFLECT", /* CAIRO_EXTEND_REFLECT */ + "EXTEND_PAD" /* CAIRO_EXTEND_PAD */ + }; + assert (extend < ARRAY_LENGTH (names)); + return names[extend]; +} + +static const char * +_filter_to_string (cairo_filter_t filter) +{ + static const char *names[] = { + "FILTER_FAST", /* CAIRO_FILTER_FAST */ + "FILTER_GOOD", /* CAIRO_FILTER_GOOD */ + "FILTER_BEST", /* CAIRO_FILTER_BEST */ + "FILTER_NEAREST", /* CAIRO_FILTER_NEAREST */ + "FILTER_BILINEAR", /* CAIRO_FILTER_BILINEAR */ + "FILTER_GAUSSIAN", /* CAIRO_FILTER_GAUSSIAN */ + }; + assert (filter < ARRAY_LENGTH (names)); + return names[filter]; +} + +static const char * +_dither_to_string (cairo_dither_t dither) +{ + static const char *names[] = { + "DITHER_DEFAULT", /* CAIRO_FILTER_FAST */ + "DITHER_NONE", /* CAIRO_FILTER_GOOD */ + "DITHER_FAST", /* CAIRO_FILTER_BEST */ + "DITHER_GOOD", /* CAIRO_FILTER_NEAREST */ + "DITHER_BEST", /* CAIRO_FILTER_BILINEAR */ + }; + assert (dither < ARRAY_LENGTH (names)); + return names[dither]; +} + + +static const char * +_fill_rule_to_string (cairo_fill_rule_t rule) +{ + static const char *names[] = { + "WINDING", /* CAIRO_FILL_RULE_WINDING */ + "EVEN_ODD" /* CAIRO_FILL_RILE_EVEN_ODD */ + }; + assert (rule < ARRAY_LENGTH (names)); + return names[rule]; +} + +static const char * +_antialias_to_string (cairo_antialias_t antialias) +{ + static const char *names[] = { + "ANTIALIAS_DEFAULT", /* CAIRO_ANTIALIAS_DEFAULT */ + "ANTIALIAS_NONE", /* CAIRO_ANTIALIAS_NONE */ + "ANTIALIAS_GRAY", /* CAIRO_ANTIALIAS_GRAY */ + "ANTIALIAS_SUBPIXEL", /* CAIRO_ANTIALIAS_SUBPIXEL */ + "ANTIALIAS_FAST", /* CAIRO_ANTIALIAS_FAST */ + "ANTIALIAS_GOOD", /* CAIRO_ANTIALIAS_GOOD */ + "ANTIALIAS_BEST" /* CAIRO_ANTIALIAS_BEST */ + }; + assert (antialias < ARRAY_LENGTH (names)); + return names[antialias]; +} + +static const char * +_line_cap_to_string (cairo_line_cap_t line_cap) +{ + static const char *names[] = { + "LINE_CAP_BUTT", /* CAIRO_LINE_CAP_BUTT */ + "LINE_CAP_ROUND", /* CAIRO_LINE_CAP_ROUND */ + "LINE_CAP_SQUARE" /* CAIRO_LINE_CAP_SQUARE */ + }; + assert (line_cap < ARRAY_LENGTH (names)); + return names[line_cap]; +} + +static const char * +_line_join_to_string (cairo_line_join_t line_join) +{ + static const char *names[] = { + "LINE_JOIN_MITER", /* CAIRO_LINE_JOIN_MITER */ + "LINE_JOIN_ROUND", /* CAIRO_LINE_JOIN_ROUND */ + "LINE_JOIN_BEVEL", /* CAIRO_LINE_JOIN_BEVEL */ + }; + assert (line_join < ARRAY_LENGTH (names)); + return names[line_join]; +} + +static inline cairo_script_context_t * +to_context (cairo_script_surface_t *surface) +{ + return (cairo_script_context_t *) surface->base.device; +} + +static cairo_bool_t +target_is_active (cairo_script_surface_t *surface) +{ + return cairo_list_is_first (&surface->operand.link, + &to_context (surface)->operands); +} + +static void +target_push (cairo_script_surface_t *surface) +{ + cairo_list_move (&surface->operand.link, &to_context (surface)->operands); +} + +static int +target_depth (cairo_script_surface_t *surface) +{ + cairo_list_t *link; + int depth = 0; + + cairo_list_foreach (link, &to_context (surface)->operands) { + if (link == &surface->operand.link) + break; + depth++; + } + + return depth; +} + +static void +_get_target (cairo_script_surface_t *surface) +{ + cairo_script_context_t *ctx = to_context (surface); + + if (target_is_active (surface)) { + _cairo_output_stream_puts (ctx->stream, "dup "); + return; + } + + if (surface->defined) { + _cairo_output_stream_printf (ctx->stream, "s%u ", + surface->base.unique_id); + } else { + int depth = target_depth (surface); + + assert (! cairo_list_is_empty (&surface->operand.link)); + assert (! target_is_active (surface)); + + if (ctx->active) { + _cairo_output_stream_printf (ctx->stream, "%d index ", depth); + _cairo_output_stream_puts (ctx->stream, "/target get exch pop "); + } else { + if (depth == 1) { + _cairo_output_stream_puts (ctx->stream, "exch "); + } else { + _cairo_output_stream_printf (ctx->stream, + "%d -1 roll ", depth); + } + target_push (surface); + _cairo_output_stream_puts (ctx->stream, "dup "); + } + } +} + +static const char * +_content_to_string (cairo_content_t content) +{ + switch (content) { + case CAIRO_CONTENT_ALPHA: return "ALPHA"; + case CAIRO_CONTENT_COLOR: return "COLOR"; + default: + case CAIRO_CONTENT_COLOR_ALPHA: return "COLOR_ALPHA"; + } +} + +static cairo_status_t +_emit_surface (cairo_script_surface_t *surface) +{ + cairo_script_context_t *ctx = to_context (surface); + + _cairo_output_stream_printf (ctx->stream, + "<< /content //%s", + _content_to_string (surface->base.content)); + if (surface->width != -1 && surface->height != -1) { + _cairo_output_stream_printf (ctx->stream, + " /width %f /height %f", + surface->width, + surface->height); + } + + if (surface->base.x_fallback_resolution != + CAIRO_SURFACE_FALLBACK_RESOLUTION_DEFAULT || + surface->base.y_fallback_resolution != + CAIRO_SURFACE_FALLBACK_RESOLUTION_DEFAULT) + { + _cairo_output_stream_printf (ctx->stream, + " /fallback-resolution [%f %f]", + surface->base.x_fallback_resolution, + surface->base.y_fallback_resolution); + } + + if (surface->base.device_transform.x0 != 0. || + surface->base.device_transform.y0 != 0.) + { + /* XXX device offset is encoded into the pattern matrices etc. */ + if (0) { + _cairo_output_stream_printf (ctx->stream, + " /device-offset [%f %f]", + surface->base.device_transform.x0, + surface->base.device_transform.y0); + } + } + + _cairo_output_stream_puts (ctx->stream, " >> surface context\n"); + surface->emitted = TRUE; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_context (cairo_script_surface_t *surface) +{ + cairo_script_context_t *ctx = to_context (surface); + + if (target_is_active (surface)) + return CAIRO_STATUS_SUCCESS; + + while (! cairo_list_is_empty (&ctx->operands)) { + operand_t *op; + cairo_script_surface_t *old; + + op = cairo_list_first_entry (&ctx->operands, + operand_t, + link); + if (op->type == DEFERRED) + break; + + old = cairo_container_of (op, cairo_script_surface_t, operand); + if (old == surface) + break; + if (old->active) + break; + + if (! old->defined) { + assert (old->emitted); + _cairo_output_stream_printf (ctx->stream, + "/target get /s%u exch def pop\n", + old->base.unique_id); + old->defined = TRUE; + } else { + _cairo_output_stream_puts (ctx->stream, "pop\n"); + } + + cairo_list_del (&old->operand.link); + } + + if (target_is_active (surface)) + return CAIRO_STATUS_SUCCESS; + + if (! surface->emitted) { + cairo_status_t status; + + status = _emit_surface (surface); + if (unlikely (status)) + return status; + } else if (cairo_list_is_empty (&surface->operand.link)) { + assert (surface->defined); + _cairo_output_stream_printf (ctx->stream, + "s%u context\n", + surface->base.unique_id); + _cairo_script_implicit_context_reset (&surface->cr); + _cairo_surface_clipper_reset (&surface->clipper); + } else { + int depth = target_depth (surface); + if (depth == 1) { + _cairo_output_stream_puts (ctx->stream, "exch\n"); + } else { + _cairo_output_stream_printf (ctx->stream, + "%d -1 roll\n", + depth); + } + } + target_push (surface); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_operator (cairo_script_surface_t *surface, + cairo_operator_t op) +{ + assert (target_is_active (surface)); + + if (surface->cr.current_operator == op) + return CAIRO_STATUS_SUCCESS; + + surface->cr.current_operator = op; + + _cairo_output_stream_printf (to_context (surface)->stream, + "//%s set-operator\n", + _operator_to_string (op)); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_fill_rule (cairo_script_surface_t *surface, + cairo_fill_rule_t fill_rule) +{ + assert (target_is_active (surface)); + + if (surface->cr.current_fill_rule == fill_rule) + return CAIRO_STATUS_SUCCESS; + + surface->cr.current_fill_rule = fill_rule; + + _cairo_output_stream_printf (to_context (surface)->stream, + "//%s set-fill-rule\n", + _fill_rule_to_string (fill_rule)); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_tolerance (cairo_script_surface_t *surface, + double tolerance, + cairo_bool_t force) +{ + assert (target_is_active (surface)); + + if ((! force || + fabs (tolerance - CAIRO_GSTATE_TOLERANCE_DEFAULT) < 1e-5) && + surface->cr.current_tolerance == tolerance) + { + return CAIRO_STATUS_SUCCESS; + } + + surface->cr.current_tolerance = tolerance; + + _cairo_output_stream_printf (to_context (surface)->stream, + "%f set-tolerance\n", + tolerance); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_antialias (cairo_script_surface_t *surface, + cairo_antialias_t antialias) +{ + assert (target_is_active (surface)); + + if (surface->cr.current_antialias == antialias) + return CAIRO_STATUS_SUCCESS; + + surface->cr.current_antialias = antialias; + + _cairo_output_stream_printf (to_context (surface)->stream, + "//%s set-antialias\n", + _antialias_to_string (antialias)); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_line_width (cairo_script_surface_t *surface, + double line_width, + cairo_bool_t force) +{ + assert (target_is_active (surface)); + + if ((! force || + fabs (line_width - CAIRO_GSTATE_LINE_WIDTH_DEFAULT) < 1e-5) && + surface->cr.current_style.line_width == line_width) + { + return CAIRO_STATUS_SUCCESS; + } + + surface->cr.current_style.line_width = line_width; + + _cairo_output_stream_printf (to_context (surface)->stream, + "%f set-line-width\n", + line_width); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_hairline (cairo_script_surface_t *surface, cairo_bool_t set_hairline) +{ + assert (target_is_active (surface)); + + if (surface->cr.current_style.is_hairline == set_hairline) + { + return CAIRO_STATUS_SUCCESS; + } + + surface->cr.current_style.is_hairline = set_hairline; + + _cairo_output_stream_printf (to_context (surface)->stream, + "%d set-hairline\n", + set_hairline); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_line_cap (cairo_script_surface_t *surface, + cairo_line_cap_t line_cap) +{ + assert (target_is_active (surface)); + + if (surface->cr.current_style.line_cap == line_cap) + return CAIRO_STATUS_SUCCESS; + + surface->cr.current_style.line_cap = line_cap; + + _cairo_output_stream_printf (to_context (surface)->stream, + "//%s set-line-cap\n", + _line_cap_to_string (line_cap)); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_line_join (cairo_script_surface_t *surface, + cairo_line_join_t line_join) +{ + assert (target_is_active (surface)); + + if (surface->cr.current_style.line_join == line_join) + return CAIRO_STATUS_SUCCESS; + + surface->cr.current_style.line_join = line_join; + + _cairo_output_stream_printf (to_context (surface)->stream, + "//%s set-line-join\n", + _line_join_to_string (line_join)); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_miter_limit (cairo_script_surface_t *surface, + double miter_limit, + cairo_bool_t force) +{ + assert (target_is_active (surface)); + + if ((! force || + fabs (miter_limit - CAIRO_GSTATE_MITER_LIMIT_DEFAULT) < 1e-5) && + surface->cr.current_style.miter_limit == miter_limit) + { + return CAIRO_STATUS_SUCCESS; + } + + surface->cr.current_style.miter_limit = miter_limit; + + _cairo_output_stream_printf (to_context (surface)->stream, + "%f set-miter-limit\n", + miter_limit); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_dashes_equal (const double *a, const double *b, int num_dashes) +{ + while (num_dashes--) { + if (fabs (*a - *b) > 1e-5) + return FALSE; + a++, b++; + } + + return TRUE; +} + +static cairo_status_t +_emit_dash (cairo_script_surface_t *surface, + const double *dash, + unsigned int num_dashes, + double offset, + cairo_bool_t force) +{ + unsigned int n; + + assert (target_is_active (surface)); + + if (force && + num_dashes == 0 && + surface->cr.current_style.num_dashes == 0) + { + return CAIRO_STATUS_SUCCESS; + } + + if (! force && + (surface->cr.current_style.num_dashes == num_dashes && + (num_dashes == 0 || + (fabs (surface->cr.current_style.dash_offset - offset) < 1e-5 && + _dashes_equal (surface->cr.current_style.dash, dash, num_dashes))))) + { + return CAIRO_STATUS_SUCCESS; + } + + + if (num_dashes) { + surface->cr.current_style.dash = _cairo_realloc_ab + (surface->cr.current_style.dash, num_dashes, sizeof (double)); + if (unlikely (surface->cr.current_style.dash == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memcpy (surface->cr.current_style.dash, dash, + sizeof (double) * num_dashes); + } else { + free (surface->cr.current_style.dash); + surface->cr.current_style.dash = NULL; + } + + surface->cr.current_style.num_dashes = num_dashes; + surface->cr.current_style.dash_offset = offset; + + _cairo_output_stream_puts (to_context (surface)->stream, "["); + for (n = 0; n < num_dashes; n++) { + _cairo_output_stream_printf (to_context (surface)->stream, "%f", dash[n]); + if (n < num_dashes-1) + _cairo_output_stream_puts (to_context (surface)->stream, " "); + } + _cairo_output_stream_printf (to_context (surface)->stream, + "] %f set-dash\n", + offset); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_stroke_style (cairo_script_surface_t *surface, + const cairo_stroke_style_t *style, + cairo_bool_t force) +{ + cairo_status_t status; + + assert (target_is_active (surface)); + + status = _emit_line_width (surface, style->line_width, force); + if (unlikely (status)) + return status; + + status = _emit_line_cap (surface, style->line_cap); + if (unlikely (status)) + return status; + + status = _emit_line_join (surface, style->line_join); + if (unlikely (status)) + return status; + + status = _emit_miter_limit (surface, style->miter_limit, force); + if (unlikely (status)) + return status; + + status = _emit_hairline (surface, style->is_hairline); + if (unlikely (status)) + return status; + + status = _emit_dash (surface, + style->dash, style->num_dashes, style->dash_offset, + force); + if (unlikely (status)) + return status; + + return CAIRO_STATUS_SUCCESS; +} + +static const char * +_format_to_string (cairo_format_t format) +{ + switch (format) { + case CAIRO_FORMAT_RGBA128F: return "RGBA128F"; + case CAIRO_FORMAT_RGB96F: return "RGB96F"; + case CAIRO_FORMAT_ARGB32: return "ARGB32"; + case CAIRO_FORMAT_RGB30: return "RGB30"; + case CAIRO_FORMAT_RGB24: return "RGB24"; + case CAIRO_FORMAT_RGB16_565: return "RGB16_565"; + case CAIRO_FORMAT_A8: return "A8"; + case CAIRO_FORMAT_A1: return "A1"; + case CAIRO_FORMAT_INVALID: return "INVALID"; + } + ASSERT_NOT_REACHED; + return "INVALID"; +} + +static cairo_status_t +_emit_solid_pattern (cairo_script_surface_t *surface, + const cairo_pattern_t *pattern) +{ + cairo_solid_pattern_t *solid = (cairo_solid_pattern_t *) pattern; + cairo_script_context_t *ctx = to_context (surface); + + if (! CAIRO_COLOR_IS_OPAQUE (&solid->color)) + { + if (! (surface->base.content & CAIRO_CONTENT_COLOR) || + ((solid->color.red_short == 0 || solid->color.red_short == 0xffff) && + (solid->color.green_short == 0 || solid->color.green_short == 0xffff) && + (solid->color.blue_short == 0 || solid->color.blue_short == 0xffff) )) + { + _cairo_output_stream_printf (ctx->stream, + "%f a", + solid->color.alpha); + } + else + { + _cairo_output_stream_printf (ctx->stream, + "%f %f %f %f rgba", + solid->color.red, + solid->color.green, + solid->color.blue, + solid->color.alpha); + } + } + else + { + if (solid->color.red_short == solid->color.green_short && + solid->color.red_short == solid->color.blue_short) + { + _cairo_output_stream_printf (ctx->stream, + "%f g", + solid->color.red); + } + else + { + _cairo_output_stream_printf (ctx->stream, + "%f %f %f rgb", + solid->color.red, + solid->color.green, + solid->color.blue); + } + } + + return CAIRO_STATUS_SUCCESS; +} + + +static cairo_status_t +_emit_gradient_color_stops (cairo_gradient_pattern_t *gradient, + cairo_output_stream_t *output) +{ + unsigned int n; + + for (n = 0; n < gradient->n_stops; n++) { + _cairo_output_stream_printf (output, + "\n %f %f %f %f %f add-color-stop", + gradient->stops[n].offset, + gradient->stops[n].color.red, + gradient->stops[n].color.green, + gradient->stops[n].color.blue, + gradient->stops[n].color.alpha); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_linear_pattern (cairo_script_surface_t *surface, + const cairo_pattern_t *pattern) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_linear_pattern_t *linear; + + linear = (cairo_linear_pattern_t *) pattern; + + _cairo_output_stream_printf (ctx->stream, + "%f %f %f %f linear", + linear->pd1.x, linear->pd1.y, + linear->pd2.x, linear->pd2.y); + return _emit_gradient_color_stops (&linear->base, ctx->stream); +} + +static cairo_status_t +_emit_radial_pattern (cairo_script_surface_t *surface, + const cairo_pattern_t *pattern) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_radial_pattern_t *radial; + + radial = (cairo_radial_pattern_t *) pattern; + + _cairo_output_stream_printf (ctx->stream, + "%f %f %f %f %f %f radial", + radial->cd1.center.x, + radial->cd1.center.y, + radial->cd1.radius, + radial->cd2.center.x, + radial->cd2.center.y, + radial->cd2.radius); + return _emit_gradient_color_stops (&radial->base, ctx->stream); +} + +static cairo_status_t +_emit_mesh_pattern (cairo_script_surface_t *surface, + const cairo_pattern_t *pattern) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_pattern_t *mesh; + cairo_status_t status; + unsigned int i, n; + + mesh = (cairo_pattern_t *) pattern; + status = cairo_mesh_pattern_get_patch_count (mesh, &n); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (ctx->stream, "mesh"); + for (i = 0; i < n; i++) { + cairo_path_t *path; + cairo_path_data_t *data; + int j; + + _cairo_output_stream_printf (ctx->stream, "\n begin-patch"); + + path = cairo_mesh_pattern_get_path (mesh, i); + if (unlikely (path->status)) + return path->status; + + for (j = 0; j < path->num_data; j+=data[0].header.length) { + data = &path->data[j]; + switch (data->header.type) { + case CAIRO_PATH_MOVE_TO: + _cairo_output_stream_printf (ctx->stream, + "\n %f %f m", + data[1].point.x, data[1].point.y); + break; + case CAIRO_PATH_LINE_TO: + _cairo_output_stream_printf (ctx->stream, + "\n %f %f l", + data[1].point.x, data[1].point.y); + break; + case CAIRO_PATH_CURVE_TO: + _cairo_output_stream_printf (ctx->stream, + "\n %f %f %f %f %f %f c", + data[1].point.x, data[1].point.y, + data[2].point.x, data[2].point.y, + data[3].point.x, data[3].point.y); + break; + case CAIRO_PATH_CLOSE_PATH: + break; + } + } + cairo_path_destroy (path); + + for (j = 0; j < 4; j++) { + double x, y; + + status = cairo_mesh_pattern_get_control_point (mesh, i, j, &x, &y); + if (unlikely (status)) + return status; + _cairo_output_stream_printf (ctx->stream, + "\n %d %f %f set-control-point", + j, x, y); + } + + for (j = 0; j < 4; j++) { + double r, g, b, a; + + status = cairo_mesh_pattern_get_corner_color_rgba (mesh, i, j, &r, &g, &b, &a); + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (ctx->stream, + "\n %d %f %f %f %f set-corner-color", + j, r, g, b, a); + } + + _cairo_output_stream_printf (ctx->stream, "\n end-patch"); + } + + return CAIRO_STATUS_SUCCESS; +} + +struct script_snapshot { + cairo_surface_t base; +}; + +static cairo_status_t +script_snapshot_finish (void *abstract_surface) +{ + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_surface_backend_t script_snapshot_backend = { + CAIRO_SURFACE_TYPE_SCRIPT, + script_snapshot_finish, +}; + +static void +detach_snapshot (cairo_surface_t *abstract_surface) +{ + cairo_script_surface_t *surface = (cairo_script_surface_t *)abstract_surface; + cairo_script_context_t *ctx = to_context (surface); + + _cairo_output_stream_printf (ctx->stream, + "/s%d undef\n", + surface->base.unique_id); +} + +static void +attach_snapshot (cairo_script_context_t *ctx, + cairo_surface_t *source) +{ + struct script_snapshot *surface; + + if (! ctx->attach_snapshots) + return; + + surface = _cairo_calloc (sizeof (*surface)); + if (unlikely (surface == NULL)) + return; + + _cairo_surface_init (&surface->base, + &script_snapshot_backend, + &ctx->base, + source->content, + source->is_vector); + + _cairo_output_stream_printf (ctx->stream, + "dup /s%d exch def ", + surface->base.unique_id); + + _cairo_surface_attach_snapshot (source, &surface->base, detach_snapshot); + cairo_surface_destroy (&surface->base); +} + +static cairo_status_t +_emit_recording_surface_pattern (cairo_script_surface_t *surface, + cairo_recording_surface_t *source) +{ + cairo_script_implicit_context_t old_cr; + cairo_script_context_t *ctx = to_context (surface); + cairo_script_surface_t *similar; + cairo_surface_t *snapshot; + cairo_rectangle_t r, *extents; + cairo_status_t status; + + snapshot = _cairo_surface_has_snapshot (&source->base, &script_snapshot_backend); + if (snapshot) { + _cairo_output_stream_printf (ctx->stream, "s%d", snapshot->unique_id); + return CAIRO_INT_STATUS_SUCCESS; + } + + extents = NULL; + if (_cairo_recording_surface_get_bounds (&source->base, &r)) + extents = &r; + + similar = _cairo_script_surface_create_internal (ctx, + source->base.content, + extents, + NULL); + if (unlikely (similar->base.status)) + return similar->base.status; + + similar->base.is_clear = TRUE; + + _cairo_output_stream_printf (ctx->stream, "//%s ", + _content_to_string (source->base.content)); + if (extents) { + _cairo_output_stream_printf (ctx->stream, "[%f %f %f %f]", + extents->x, extents->y, + extents->width, extents->height); + } else + _cairo_output_stream_puts (ctx->stream, "[]"); + _cairo_output_stream_puts (ctx->stream, " record\n"); + + attach_snapshot (ctx, &source->base); + + _cairo_output_stream_puts (ctx->stream, "dup context\n"); + + target_push (similar); + similar->emitted = TRUE; + + + old_cr = surface->cr; + _cairo_script_implicit_context_init (&surface->cr); + status = _cairo_recording_surface_replay (&source->base, &similar->base); + surface->cr = old_cr; + + if (unlikely (status)) { + cairo_surface_destroy (&similar->base); + return status; + } + + cairo_list_del (&similar->operand.link); + assert (target_is_active (surface)); + + _cairo_output_stream_puts (ctx->stream, "pop "); + cairo_surface_destroy (&similar->base); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_script_surface_pattern (cairo_script_surface_t *surface, + cairo_script_surface_t *source) +{ + _get_target (source); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_write_image_surface (cairo_output_stream_t *output, + const cairo_image_surface_t *image) +{ + int row, width; + ptrdiff_t stride; + uint8_t row_stack[CAIRO_STACK_BUFFER_SIZE]; + uint8_t *rowdata; + uint8_t *data; + + stride = image->stride; + width = image->width; + data = image->data; +#if WORDS_BIGENDIAN + switch (image->format) { + case CAIRO_FORMAT_A1: + for (row = image->height; row--; ) { + _cairo_output_stream_write (output, data, (width+7)/8); + data += stride; + } + break; + case CAIRO_FORMAT_A8: + for (row = image->height; row--; ) { + _cairo_output_stream_write (output, data, width); + data += stride; + } + break; + case CAIRO_FORMAT_RGB16_565: + for (row = image->height; row--; ) { + _cairo_output_stream_write (output, data, 2*width); + data += stride; + } + break; + case CAIRO_FORMAT_RGB24: + for (row = image->height; row--; ) { + int col; + rowdata = data; + for (col = width; col--; ) { + _cairo_output_stream_write (output, rowdata, 3); + rowdata+=4; + } + data += stride; + } + break; + case CAIRO_FORMAT_ARGB32: + for (row = image->height; row--; ) { + _cairo_output_stream_write (output, data, 4*width); + data += stride; + } + break; + case CAIRO_FORMAT_INVALID: + default: + ASSERT_NOT_REACHED; + break; + } +#else + if (stride > ARRAY_LENGTH (row_stack)) { + rowdata = _cairo_malloc (stride); + if (unlikely (rowdata == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } else + rowdata = row_stack; + + switch (image->format) { + case CAIRO_FORMAT_A1: + for (row = image->height; row--; ) { + int col; + for (col = 0; col < (width + 7)/8; col++) + rowdata[col] = CAIRO_BITSWAP8 (data[col]); + _cairo_output_stream_write (output, rowdata, (width+7)/8); + data += stride; + } + break; + case CAIRO_FORMAT_A8: + for (row = image->height; row--; ) { + _cairo_output_stream_write (output, data, width); + data += stride; + } + break; + case CAIRO_FORMAT_RGB16_565: + for (row = image->height; row--; ) { + uint16_t *src = (uint16_t *) data; + uint16_t *dst = (uint16_t *) rowdata; + int col; + for (col = 0; col < width; col++) + dst[col] = bswap_16 (src[col]); + _cairo_output_stream_write (output, rowdata, 2*width); + data += stride; + } + break; + case CAIRO_FORMAT_RGB24: + for (row = image->height; row--; ) { + uint8_t *src = data; + int col; + for (col = 0; col < width; col++) { + rowdata[3*col+2] = *src++; + rowdata[3*col+1] = *src++; + rowdata[3*col+0] = *src++; + src++; + } + _cairo_output_stream_write (output, rowdata, 3*width); + data += stride; + } + break; + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_ARGB32: + for (row = image->height; row--; ) { + uint32_t *src = (uint32_t *) data; + uint32_t *dst = (uint32_t *) rowdata; + int col; + for (col = 0; col < width; col++) + dst[col] = bswap_32 (src[col]); + _cairo_output_stream_write (output, rowdata, 4*width); + data += stride; + } + break; + case CAIRO_FORMAT_RGB96F: + for (row = image->height; row--; ) { + _cairo_output_stream_write (output, data, 12*width); + data += stride; + } + break; + case CAIRO_FORMAT_RGBA128F: + for (row = image->height; row--; ) { + _cairo_output_stream_write (output, data, 16*width); + data += stride; + } + break; + case CAIRO_FORMAT_INVALID: + default: + ASSERT_NOT_REACHED; + break; + } + if (rowdata != row_stack) + free (rowdata); +#endif + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_emit_png_surface (cairo_script_surface_t *surface, + cairo_image_surface_t *image) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_output_stream_t *base85_stream; + cairo_status_t status; + const uint8_t *mime_data; + unsigned long mime_data_length; + + cairo_surface_get_mime_data (&image->base, CAIRO_MIME_TYPE_PNG, + &mime_data, &mime_data_length); + if (mime_data == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + _cairo_output_stream_printf (ctx->stream, + "<< " + "/width %d " + "/height %d " + "/format //%s " + "/mime-type (image/png) " + "/source <~", + image->width, image->height, + _format_to_string (image->format)); + + base85_stream = _cairo_base85_stream_create (ctx->stream); + _cairo_output_stream_write (base85_stream, mime_data, mime_data_length); + status = _cairo_output_stream_destroy (base85_stream); + if (unlikely (status)) + return status; + + _cairo_output_stream_puts (ctx->stream, "~> >> image "); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_emit_image_surface (cairo_script_surface_t *surface, + cairo_image_surface_t *image) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_output_stream_t *base85_stream; + cairo_output_stream_t *zlib_stream; + cairo_int_status_t status, status2; + cairo_surface_t *snapshot; + const uint8_t *mime_data; + unsigned long mime_data_length; + + snapshot = _cairo_surface_has_snapshot (&image->base, + &script_snapshot_backend); + if (snapshot) { + _cairo_output_stream_printf (ctx->stream, "s%u ", snapshot->unique_id); + return CAIRO_INT_STATUS_SUCCESS; + } + + status = _emit_png_surface (surface, image); + if (_cairo_int_status_is_error (status)) { + return status; + } else if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + cairo_image_surface_t *clone; + uint32_t len; + + if (image->format == CAIRO_FORMAT_INVALID) { + clone = _cairo_image_surface_coerce (image); + } else { + clone = (cairo_image_surface_t *) + cairo_surface_reference (&image->base); + } + + _cairo_output_stream_printf (ctx->stream, + "<< " + "/width %d " + "/height %d " + "/format //%s " + "/source ", + clone->width, clone->height, + _format_to_string (clone->format)); + + switch (clone->format) { + case CAIRO_FORMAT_A1: + len = (clone->width + 7)/8; + break; + case CAIRO_FORMAT_A8: + len = clone->width; + break; + case CAIRO_FORMAT_RGB16_565: + len = clone->width * 2; + break; + case CAIRO_FORMAT_RGB24: + len = clone->width * 3; + break; + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_ARGB32: + len = clone->width * 4; + break; + case CAIRO_FORMAT_RGB96F: + len = clone->width * 12; + break; + case CAIRO_FORMAT_RGBA128F: + len = clone->width * 16; + break; + case CAIRO_FORMAT_INVALID: + default: + ASSERT_NOT_REACHED; + len = 0; + break; + } + len *= clone->height; + + if (len > 24) { + _cairo_output_stream_puts (ctx->stream, "<|"); + + base85_stream = _cairo_base85_stream_create (ctx->stream); + + len = to_be32 (len); + _cairo_output_stream_write (base85_stream, &len, sizeof (len)); + + zlib_stream = _cairo_deflate_stream_create (base85_stream); + status = _write_image_surface (zlib_stream, clone); + + status2 = _cairo_output_stream_destroy (zlib_stream); + if (status == CAIRO_INT_STATUS_SUCCESS) + status = status2; + status2 = _cairo_output_stream_destroy (base85_stream); + if (status == CAIRO_INT_STATUS_SUCCESS) + status = status2; + if (unlikely (status)) + return status; + } else { + _cairo_output_stream_puts (ctx->stream, "<~"); + + base85_stream = _cairo_base85_stream_create (ctx->stream); + status = _write_image_surface (base85_stream, clone); + status2 = _cairo_output_stream_destroy (base85_stream); + if (status == CAIRO_INT_STATUS_SUCCESS) + status = status2; + if (unlikely (status)) + return status; + } + _cairo_output_stream_puts (ctx->stream, "~> >> image "); + + cairo_surface_destroy (&clone->base); + } + + cairo_surface_get_mime_data (&image->base, CAIRO_MIME_TYPE_JPEG, + &mime_data, &mime_data_length); + if (mime_data != NULL) { + _cairo_output_stream_printf (ctx->stream, + "\n (%s) <~", + CAIRO_MIME_TYPE_JPEG); + + base85_stream = _cairo_base85_stream_create (ctx->stream); + _cairo_output_stream_write (base85_stream, mime_data, mime_data_length); + status = _cairo_output_stream_destroy (base85_stream); + if (unlikely (status)) + return status; + + _cairo_output_stream_puts (ctx->stream, "~> set-mime-data\n"); + } + + cairo_surface_get_mime_data (&image->base, CAIRO_MIME_TYPE_JP2, + &mime_data, &mime_data_length); + if (mime_data != NULL) { + _cairo_output_stream_printf (ctx->stream, + "\n (%s) <~", + CAIRO_MIME_TYPE_JP2); + + base85_stream = _cairo_base85_stream_create (ctx->stream); + _cairo_output_stream_write (base85_stream, mime_data, mime_data_length); + status = _cairo_output_stream_destroy (base85_stream); + if (unlikely (status)) + return status; + + _cairo_output_stream_puts (ctx->stream, "~> set-mime-data\n"); + } + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_emit_image_surface_pattern (cairo_script_surface_t *surface, + cairo_surface_t *source) +{ + cairo_image_surface_t *image; + cairo_status_t status; + void *extra; + + status = _cairo_surface_acquire_source_image (source, &image, &extra); + if (likely (status == CAIRO_STATUS_SUCCESS)) { + status = _emit_image_surface (surface, image); + _cairo_surface_release_source_image (source, image, extra); + } + + return status; +} + +static cairo_int_status_t +_emit_subsurface_pattern (cairo_script_surface_t *surface, + cairo_surface_subsurface_t *sub) +{ + cairo_surface_t *source = sub->target; + cairo_int_status_t status; + + switch ((int) source->backend->type) { + case CAIRO_SURFACE_TYPE_RECORDING: + status = _emit_recording_surface_pattern (surface, (cairo_recording_surface_t *) source); + break; + case CAIRO_SURFACE_TYPE_SCRIPT: + status = _emit_script_surface_pattern (surface, (cairo_script_surface_t *) source); + break; + default: + status = _emit_image_surface_pattern (surface, source); + break; + } + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (to_context (surface)->stream, + "%d %d %d %d subsurface ", + sub->extents.x, + sub->extents.y, + sub->extents.width, + sub->extents.height); + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_emit_surface_pattern (cairo_script_surface_t *surface, + const cairo_pattern_t *pattern) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_surface_pattern_t *surface_pattern; + cairo_surface_t *source, *snapshot, *free_me = NULL; + cairo_surface_t *take_snapshot = NULL; + cairo_int_status_t status; + + surface_pattern = (cairo_surface_pattern_t *) pattern; + source = surface_pattern->surface; + + if (_cairo_surface_is_snapshot (source)) { + snapshot = _cairo_surface_has_snapshot (source, &script_snapshot_backend); + if (snapshot) { + _cairo_output_stream_printf (ctx->stream, + "s%d pattern ", + snapshot->unique_id); + return CAIRO_INT_STATUS_SUCCESS; + } + + if (_cairo_surface_snapshot_is_reused (source)) + take_snapshot = source; + + free_me = source = _cairo_surface_snapshot_get_target (source); + } + + switch ((int) source->backend->type) { + case CAIRO_SURFACE_TYPE_RECORDING: + status = _emit_recording_surface_pattern (surface, (cairo_recording_surface_t *) source); + break; + case CAIRO_SURFACE_TYPE_SCRIPT: + status = _emit_script_surface_pattern (surface, (cairo_script_surface_t *) source); + break; + case CAIRO_SURFACE_TYPE_SUBSURFACE: + status = _emit_subsurface_pattern (surface, (cairo_surface_subsurface_t *) source); + break; + default: + status = _emit_image_surface_pattern (surface, source); + break; + } + cairo_surface_destroy (free_me); + if (unlikely (status)) + return status; + + if (take_snapshot) + attach_snapshot (ctx, take_snapshot); + + _cairo_output_stream_puts (ctx->stream, "pattern"); + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_emit_raster_pattern (cairo_script_surface_t *surface, + const cairo_pattern_t *pattern) +{ + cairo_surface_t *source; + cairo_int_status_t status; + + source = _cairo_raster_source_pattern_acquire (pattern, &surface->base, NULL); + if (unlikely (source == NULL)) { + ASSERT_NOT_REACHED; + return CAIRO_INT_STATUS_UNSUPPORTED; + } + if (unlikely (source->status)) + return source->status; + + status = _emit_image_surface_pattern (surface, source); + _cairo_raster_source_pattern_release (pattern, source); + if (unlikely (status)) + return status; + + _cairo_output_stream_puts (to_context(surface)->stream, "pattern"); + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_emit_pattern (cairo_script_surface_t *surface, + const cairo_pattern_t *pattern) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_int_status_t status; + cairo_bool_t is_default_extend; + cairo_bool_t need_newline = TRUE; + + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + /* solid colors do not need filter/extend/matrix */ + return _emit_solid_pattern (surface, pattern); + + case CAIRO_PATTERN_TYPE_LINEAR: + status = _emit_linear_pattern (surface, pattern); + is_default_extend = pattern->extend == CAIRO_EXTEND_GRADIENT_DEFAULT; + break; + case CAIRO_PATTERN_TYPE_RADIAL: + status = _emit_radial_pattern (surface, pattern); + is_default_extend = pattern->extend == CAIRO_EXTEND_GRADIENT_DEFAULT; + break; + case CAIRO_PATTERN_TYPE_MESH: + status = _emit_mesh_pattern (surface, pattern); + is_default_extend = TRUE; + break; + case CAIRO_PATTERN_TYPE_SURFACE: + status = _emit_surface_pattern (surface, pattern); + is_default_extend = pattern->extend == CAIRO_EXTEND_SURFACE_DEFAULT; + break; + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + status = _emit_raster_pattern (surface, pattern); + is_default_extend = pattern->extend == CAIRO_EXTEND_SURFACE_DEFAULT; + break; + + default: + ASSERT_NOT_REACHED; + status = CAIRO_INT_STATUS_UNSUPPORTED; + } + if (unlikely (status)) + return status; + + if (! _cairo_matrix_is_identity (&pattern->matrix)) { + if (need_newline) { + _cairo_output_stream_puts (ctx->stream, "\n "); + need_newline = FALSE; + } + + _cairo_output_stream_printf (ctx->stream, + " [%f %f %f %f %f %f] set-matrix\n ", + pattern->matrix.xx, pattern->matrix.yx, + pattern->matrix.xy, pattern->matrix.yy, + pattern->matrix.x0, pattern->matrix.y0); + } + + /* XXX need to discriminate the user explicitly setting the default */ + if (pattern->filter != CAIRO_FILTER_DEFAULT) { + if (need_newline) { + _cairo_output_stream_puts (ctx->stream, "\n "); + need_newline = FALSE; + } + + _cairo_output_stream_printf (ctx->stream, + " //%s set-filter\n ", + _filter_to_string (pattern->filter)); + } + /* XXX need to discriminate the user explicitly setting the default */ + if (pattern->dither != CAIRO_DITHER_DEFAULT) { + if (need_newline) { + _cairo_output_stream_puts (ctx->stream, "\n "); + need_newline = FALSE; + } + + _cairo_output_stream_printf (ctx->stream, + " //%s set-dither\n ", + _dither_to_string (pattern->dither)); + } + if (! is_default_extend ){ + if (need_newline) { + _cairo_output_stream_puts (ctx->stream, "\n "); + need_newline = FALSE; + } + + _cairo_output_stream_printf (ctx->stream, + " //%s set-extend\n ", + _extend_to_string (pattern->extend)); + } + + if (need_newline) + _cairo_output_stream_puts (ctx->stream, "\n "); + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_emit_identity (cairo_script_surface_t *surface, + cairo_bool_t *matrix_updated) +{ + assert (target_is_active (surface)); + + if (_cairo_matrix_is_identity (&surface->cr.current_ctm)) + return CAIRO_INT_STATUS_SUCCESS; + + _cairo_output_stream_puts (to_context (surface)->stream, + "identity set-matrix\n"); + + *matrix_updated = TRUE; + cairo_matrix_init_identity (&surface->cr.current_ctm); + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_emit_source (cairo_script_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source) +{ + cairo_bool_t matrix_updated = FALSE; + cairo_int_status_t status; + + assert (target_is_active (surface)); + + if (op == CAIRO_OPERATOR_CLEAR) { + /* the source is ignored, so don't change it */ + return CAIRO_INT_STATUS_SUCCESS; + } + + if (_cairo_pattern_equal (&surface->cr.current_source.base, source)) + return CAIRO_INT_STATUS_SUCCESS; + + _cairo_pattern_fini (&surface->cr.current_source.base); + status = _cairo_pattern_init_copy (&surface->cr.current_source.base, + source); + if (unlikely (status)) + return status; + + status = _emit_identity (surface, &matrix_updated); + if (unlikely (status)) + return status; + + status = _emit_pattern (surface, source); + if (unlikely (status)) + return status; + + assert (target_is_active (surface)); + _cairo_output_stream_puts (to_context (surface)->stream, + " set-source\n"); + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_status_t +_path_move_to (void *closure, + const cairo_point_t *point) +{ + _cairo_output_stream_printf (closure, + " %f %f m", + _cairo_fixed_to_double (point->x), + _cairo_fixed_to_double (point->y)); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_path_line_to (void *closure, + const cairo_point_t *point) +{ + _cairo_output_stream_printf (closure, + " %f %f l", + _cairo_fixed_to_double (point->x), + _cairo_fixed_to_double (point->y)); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_path_curve_to (void *closure, + const cairo_point_t *p1, + const cairo_point_t *p2, + const cairo_point_t *p3) +{ + _cairo_output_stream_printf (closure, + " %f %f %f %f %f %f c", + _cairo_fixed_to_double (p1->x), + _cairo_fixed_to_double (p1->y), + _cairo_fixed_to_double (p2->x), + _cairo_fixed_to_double (p2->y), + _cairo_fixed_to_double (p3->x), + _cairo_fixed_to_double (p3->y)); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_path_close (void *closure) +{ + _cairo_output_stream_printf (closure, + " h"); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_path_boxes (cairo_script_surface_t *surface, + const cairo_path_fixed_t *path) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_path_fixed_iter_t iter; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + struct _cairo_boxes_chunk *chunk; + cairo_boxes_t boxes; + cairo_box_t box; + int i; + + _cairo_boxes_init (&boxes); + _cairo_path_fixed_iter_init (&iter, path); + while (_cairo_path_fixed_iter_is_fill_box (&iter, &box)) { + if (box.p1.y == box.p2.y || box.p1.x == box.p2.x) + continue; + + status = _cairo_boxes_add (&boxes, CAIRO_ANTIALIAS_DEFAULT, &box); + if (unlikely (status)) { + _cairo_boxes_fini (&boxes); + return status; + } + } + + if (! _cairo_path_fixed_iter_at_end (&iter)) { + _cairo_boxes_fini (&boxes); + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + for (chunk = &boxes.chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + const cairo_box_t *b = &chunk->base[i]; + double x1 = _cairo_fixed_to_double (b->p1.x); + double y1 = _cairo_fixed_to_double (b->p1.y); + double x2 = _cairo_fixed_to_double (b->p2.x); + double y2 = _cairo_fixed_to_double (b->p2.y); + + _cairo_output_stream_printf (ctx->stream, + "\n %f %f %f %f rectangle", + x1, y1, x2 - x1, y2 - y1); + } + } + + _cairo_boxes_fini (&boxes); + return status; +} + +static cairo_status_t +_emit_path (cairo_script_surface_t *surface, + const cairo_path_fixed_t *path, + cairo_bool_t is_fill) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_box_t box; + cairo_int_status_t status; + + assert (target_is_active (surface)); + assert (_cairo_matrix_is_identity (&surface->cr.current_ctm)); + + if (_cairo_path_fixed_equal (&surface->cr.current_path, path)) + return CAIRO_STATUS_SUCCESS; + + _cairo_path_fixed_fini (&surface->cr.current_path); + + _cairo_output_stream_puts (ctx->stream, "n"); + + if (path == NULL) { + _cairo_path_fixed_init (&surface->cr.current_path); + _cairo_output_stream_puts (ctx->stream, "\n"); + return CAIRO_STATUS_SUCCESS; + } + + status = _cairo_path_fixed_init_copy (&surface->cr.current_path, path); + if (unlikely (status)) + return status; + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (_cairo_path_fixed_is_rectangle (path, &box)) { + double x1 = _cairo_fixed_to_double (box.p1.x); + double y1 = _cairo_fixed_to_double (box.p1.y); + double x2 = _cairo_fixed_to_double (box.p2.x); + double y2 = _cairo_fixed_to_double (box.p2.y); + + assert (x1 > -9999); + + _cairo_output_stream_printf (ctx->stream, + " %f %f %f %f rectangle", + x1, y1, x2 - x1, y2 - y1); + status = CAIRO_INT_STATUS_SUCCESS; + } else if (is_fill && _cairo_path_fixed_fill_is_rectilinear (path)) { + status = _emit_path_boxes (surface, path); + } + + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + status = _cairo_path_fixed_interpret (path, + _path_move_to, + _path_line_to, + _path_curve_to, + _path_close, + ctx->stream); + } + + _cairo_output_stream_puts (ctx->stream, "\n"); + + return status; +} +static cairo_bool_t +_scaling_matrix_equal (const cairo_matrix_t *a, + const cairo_matrix_t *b) +{ + return fabs (a->xx - b->xx) < 1e-5 && + fabs (a->xy - b->xy) < 1e-5 && + fabs (a->yx - b->yx) < 1e-5 && + fabs (a->yy - b->yy) < 1e-5; +} + +static cairo_status_t +_emit_scaling_matrix (cairo_script_surface_t *surface, + const cairo_matrix_t *ctm, + cairo_bool_t *matrix_updated) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_bool_t was_identity; + assert (target_is_active (surface)); + + if (_scaling_matrix_equal (&surface->cr.current_ctm, ctm)) + return CAIRO_STATUS_SUCCESS; + + was_identity = _cairo_matrix_is_identity (&surface->cr.current_ctm); + + *matrix_updated = TRUE; + surface->cr.current_ctm = *ctm; + surface->cr.current_ctm.x0 = 0.; + surface->cr.current_ctm.y0 = 0.; + + if (_cairo_matrix_is_identity (&surface->cr.current_ctm)) { + _cairo_output_stream_puts (ctx->stream, + "identity set-matrix\n"); + } else if (was_identity && fabs (ctm->yx) < 1e-5 && fabs (ctm->xy) < 1e-5) { + _cairo_output_stream_printf (ctx->stream, + "%f %f scale\n", + ctm->xx, ctm->yy); + } else { + _cairo_output_stream_printf (ctx->stream, + "[%f %f %f %f 0 0] set-matrix\n", + ctm->xx, ctm->yx, + ctm->xy, ctm->yy); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_font_matrix (cairo_script_surface_t *surface, + const cairo_matrix_t *font_matrix) +{ + cairo_script_context_t *ctx = to_context (surface); + assert (target_is_active (surface)); + + if (memcmp (&surface->cr.current_font_matrix, + font_matrix, + sizeof (cairo_matrix_t)) == 0) + { + return CAIRO_STATUS_SUCCESS; + } + + surface->cr.current_font_matrix = *font_matrix; + + if (_cairo_matrix_is_identity (font_matrix)) { + _cairo_output_stream_puts (ctx->stream, + "identity set-font-matrix\n"); + } else { + _cairo_output_stream_printf (ctx->stream, + "[%f %f %f %f %f %f] set-font-matrix\n", + font_matrix->xx, font_matrix->yx, + font_matrix->xy, font_matrix->yy, + font_matrix->x0, font_matrix->y0); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_surface_t * +_cairo_script_surface_create_similar (void *abstract_surface, + cairo_content_t content, + int width, + int height) +{ + cairo_script_surface_t *surface, *other = abstract_surface; + cairo_surface_t *passthrough = NULL; + cairo_script_context_t *ctx; + cairo_rectangle_t extents; + cairo_status_t status; + + ctx = to_context (other); + + status = cairo_device_acquire (&ctx->base); + if (unlikely (status)) + return _cairo_surface_create_in_error (status); + + if (! other->emitted) { + status = _emit_surface (other); + if (unlikely (status)) { + cairo_device_release (&ctx->base); + return _cairo_surface_create_in_error (status); + } + + target_push (other); + } + + if (_cairo_surface_wrapper_is_active (&other->wrapper)) { + passthrough = + _cairo_surface_wrapper_create_similar (&other->wrapper, + content, width, height); + if (unlikely (passthrough->status)) { + cairo_device_release (&ctx->base); + return passthrough; + } + } + + extents.x = extents.y = 0; + extents.width = width; + extents.height = height; + surface = _cairo_script_surface_create_internal (ctx, content, + &extents, passthrough); + cairo_surface_destroy (passthrough); + + if (unlikely (surface->base.status)) { + cairo_device_release (&ctx->base); + return &surface->base; + } + + _get_target (other); + _cairo_output_stream_printf (ctx->stream, + "%u %u //%s similar dup /s%u exch def context\n", + width, height, + _content_to_string (content), + surface->base.unique_id); + + surface->emitted = TRUE; + surface->defined = TRUE; + surface->base.is_clear = TRUE; + target_push (surface); + + cairo_device_release (&ctx->base); + return &surface->base; +} + +static cairo_status_t +_device_flush (void *abstract_device) +{ + cairo_script_context_t *ctx = abstract_device; + + return _cairo_output_stream_flush (ctx->stream); +} + +static void +_device_finish (void *abstract_device) +{ + cairo_script_context_t *ctx = abstract_device; + + cairo_status_t status = _cairo_output_stream_close (ctx->stream); + status = _cairo_device_set_error (&ctx->base, status); + (void) status; +} + +static void +_device_destroy (void *abstract_device) +{ + cairo_script_context_t *ctx = abstract_device; + cairo_status_t status; + + while (! cairo_list_is_empty (&ctx->fonts)) { + cairo_script_font_t *font; + + font = cairo_list_first_entry (&ctx->fonts, cairo_script_font_t, link); + cairo_list_del (&font->base.link); + cairo_list_del (&font->link); + free (font); + } + + _bitmap_fini (ctx->surface_id.next); + _bitmap_fini (ctx->font_id.next); + + if (ctx->owns_stream) + status = _cairo_output_stream_destroy (ctx->stream); + + free (ctx); +} + +static cairo_surface_t * +_cairo_script_surface_source (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_script_surface_t *surface = abstract_surface; + + if (extents) { + extents->x = extents->y = 0; + extents->width = surface->width; + extents->height = surface->height; + } + + return &surface->base; +} + +static cairo_status_t +_cairo_script_surface_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + cairo_script_surface_t *surface = abstract_surface; + + if (_cairo_surface_wrapper_is_active (&surface->wrapper)) { + return _cairo_surface_wrapper_acquire_source_image (&surface->wrapper, + image_out, + image_extra); + } + + return CAIRO_INT_STATUS_UNSUPPORTED; +} + +static void +_cairo_script_surface_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *image_extra) +{ + cairo_script_surface_t *surface = abstract_surface; + + assert (_cairo_surface_wrapper_is_active (&surface->wrapper)); + _cairo_surface_wrapper_release_source_image (&surface->wrapper, + image, + image_extra); +} + +static cairo_status_t +_cairo_script_surface_finish (void *abstract_surface) +{ + cairo_script_surface_t *surface = abstract_surface; + cairo_script_context_t *ctx = to_context (surface); + cairo_status_t status = CAIRO_STATUS_SUCCESS, status2; + + _cairo_surface_wrapper_fini (&surface->wrapper); + + free (surface->cr.current_style.dash); + surface->cr.current_style.dash = NULL; + + _cairo_pattern_fini (&surface->cr.current_source.base); + _cairo_path_fixed_fini (&surface->cr.current_path); + _cairo_font_options_fini (&surface->cr.current_font_options); + _cairo_surface_clipper_reset (&surface->clipper); + + status = cairo_device_acquire (&ctx->base); + if (unlikely (status)) + return status; + + if (surface->emitted) { + assert (! surface->active); + + if (! cairo_list_is_empty (&surface->operand.link)) { + if (! ctx->active) { + if (target_is_active (surface)) { + _cairo_output_stream_printf (ctx->stream, + "pop\n"); + } else { + int depth = target_depth (surface); + if (depth == 1) { + _cairo_output_stream_printf (ctx->stream, + "exch pop\n"); + } else { + _cairo_output_stream_printf (ctx->stream, + "%d -1 roll pop\n", + depth); + } + } + cairo_list_del (&surface->operand.link); + } else { + struct deferred_finish *link = _cairo_calloc (sizeof (*link)); + if (link == NULL) { + status2 = _cairo_error (CAIRO_STATUS_NO_MEMORY); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + cairo_list_del (&surface->operand.link); + } else { + link->operand.type = DEFERRED; + cairo_list_move_list (&surface->operand.link, &link->operand.link); + cairo_list_add (&link->link, &ctx->deferred); + } + } + } + + if (surface->defined) { + _cairo_output_stream_printf (ctx->stream, + "/s%u undef\n", + surface->base.unique_id); + } + } + + if (status == CAIRO_STATUS_SUCCESS) + status = _cairo_output_stream_flush (to_context (surface)->stream); + + cairo_device_release (&ctx->base); + + return status; +} + +static cairo_int_status_t +_cairo_script_surface_copy_page (void *abstract_surface) +{ + cairo_script_surface_t *surface = abstract_surface; + cairo_status_t status; + + status = cairo_device_acquire (surface->base.device); + if (unlikely (status)) + return status; + + status = _emit_context (surface); + if (unlikely (status)) + goto BAIL; + + _cairo_output_stream_puts (to_context (surface)->stream, "copy-page\n"); + +BAIL: + cairo_device_release (surface->base.device); + return status; +} + +static cairo_int_status_t +_cairo_script_surface_show_page (void *abstract_surface) +{ + cairo_script_surface_t *surface = abstract_surface; + cairo_status_t status; + + status = cairo_device_acquire (surface->base.device); + if (unlikely (status)) + return status; + + status = _emit_context (surface); + if (unlikely (status)) + goto BAIL; + + _cairo_output_stream_puts (to_context (surface)->stream, "show-page\n"); + +BAIL: + cairo_device_release (surface->base.device); + return status; +} + +static cairo_status_t +_cairo_script_surface_clipper_intersect_clip_path (cairo_surface_clipper_t *clipper, + cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_script_surface_t *surface = cairo_container_of (clipper, + cairo_script_surface_t, + clipper); + cairo_script_context_t *ctx = to_context (surface); + cairo_bool_t matrix_updated = FALSE; + cairo_status_t status; + cairo_box_t box; + + status = _emit_context (surface); + if (unlikely (status)) + return status; + + if (path == NULL) { + if (surface->cr.has_clip) { + _cairo_output_stream_puts (ctx->stream, "reset-clip\n"); + surface->cr.has_clip = FALSE; + } + return CAIRO_STATUS_SUCCESS; + } + + /* skip the trivial clip covering the surface extents */ + if (surface->width >= 0 && surface->height >= 0 && + _cairo_path_fixed_is_box (path, &box)) + { + if (box.p1.x <= 0 && box.p1.y <= 0 && + box.p2.x >= _cairo_fixed_from_double (surface->width) && + box.p2.y >= _cairo_fixed_from_double (surface->height)) + { + return CAIRO_STATUS_SUCCESS; + } + } + + status = _emit_identity (surface, &matrix_updated); + if (unlikely (status)) + return status; + + status = _emit_fill_rule (surface, fill_rule); + if (unlikely (status)) + return status; + + if (path->has_curve_to) { + status = _emit_tolerance (surface, tolerance, matrix_updated); + if (unlikely (status)) + return status; + } + + if (! _cairo_path_fixed_fill_maybe_region (path)) { + status = _emit_antialias (surface, antialias); + if (unlikely (status)) + return status; + } + + status = _emit_path (surface, path, TRUE); + if (unlikely (status)) + return status; + + _cairo_output_stream_puts (ctx->stream, "clip+\n"); + surface->cr.has_clip = TRUE; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +active (cairo_script_surface_t *surface) +{ + cairo_status_t status; + + status = cairo_device_acquire (surface->base.device); + if (unlikely (status)) + return status; + + if (surface->active++ == 0) + to_context (surface)->active++; + + return CAIRO_STATUS_SUCCESS; +} + +static void +inactive (cairo_script_surface_t *surface) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_list_t sorted; + + assert (surface->active > 0); + if (--surface->active) + goto DONE; + + assert (ctx->active > 0); + if (--ctx->active) + goto DONE; + + cairo_list_init (&sorted); + while (! cairo_list_is_empty (&ctx->deferred)) { + struct deferred_finish *df; + cairo_list_t *operand; + int depth; + + df = cairo_list_first_entry (&ctx->deferred, + struct deferred_finish, + link); + + depth = 0; + cairo_list_foreach (operand, &ctx->operands) { + if (operand == &df->operand.link) + break; + depth++; + } + + df->operand.type = depth; + + if (cairo_list_is_empty (&sorted)) { + cairo_list_move (&df->link, &sorted); + } else { + struct deferred_finish *pos; + + cairo_list_foreach_entry (pos, struct deferred_finish, + &sorted, + link) + { + if (df->operand.type < pos->operand.type) + break; + } + cairo_list_move_tail (&df->link, &pos->link); + } + } + + while (! cairo_list_is_empty (&sorted)) { + struct deferred_finish *df; + cairo_list_t *operand; + int depth; + + df = cairo_list_first_entry (&sorted, + struct deferred_finish, + link); + + depth = 0; + cairo_list_foreach (operand, &ctx->operands) { + if (operand == &df->operand.link) + break; + depth++; + } + + if (depth == 0) { + _cairo_output_stream_printf (ctx->stream, + "pop\n"); + } else if (depth == 1) { + _cairo_output_stream_printf (ctx->stream, + "exch pop\n"); + } else { + _cairo_output_stream_printf (ctx->stream, + "%d -1 roll pop\n", + depth); + } + + cairo_list_del (&df->operand.link); + cairo_list_del (&df->link); + free (df); + } + +DONE: + cairo_device_release (surface->base.device); +} + +static cairo_int_status_t +_cairo_script_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_script_surface_t *surface = abstract_surface; + cairo_status_t status; + + status = active (surface); + if (unlikely (status)) + return status; + + status = _cairo_surface_clipper_set_clip (&surface->clipper, clip); + if (unlikely (status)) + goto BAIL; + + status = _emit_context (surface); + if (unlikely (status)) + goto BAIL; + + status = _emit_source (surface, op, source); + if (unlikely (status)) + goto BAIL; + + status = _emit_operator (surface, op); + if (unlikely (status)) + goto BAIL; + + _cairo_output_stream_puts (to_context (surface)->stream, + "paint\n"); + + inactive (surface); + + if (_cairo_surface_wrapper_is_active (&surface->wrapper)) { + return _cairo_surface_wrapper_paint (&surface->wrapper, + op, source, 0, clip); + } + + return CAIRO_STATUS_SUCCESS; + +BAIL: + inactive (surface); + return status; +} + +static cairo_int_status_t +_cairo_script_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_script_surface_t *surface = abstract_surface; + cairo_status_t status; + + status = active (surface); + if (unlikely (status)) + return status; + + status = _cairo_surface_clipper_set_clip (&surface->clipper, clip); + if (unlikely (status)) + goto BAIL; + + status = _emit_context (surface); + if (unlikely (status)) + goto BAIL; + + status = _emit_source (surface, op, source); + if (unlikely (status)) + goto BAIL; + + status = _emit_operator (surface, op); + if (unlikely (status)) + goto BAIL; + + if (_cairo_pattern_equal (source, mask)) { + _cairo_output_stream_puts (to_context (surface)->stream, "/source get"); + } else { + status = _emit_pattern (surface, mask); + if (unlikely (status)) + goto BAIL; + } + + assert (surface->cr.current_operator == op); + + _cairo_output_stream_puts (to_context (surface)->stream, + " mask\n"); + + inactive (surface); + + if (_cairo_surface_wrapper_is_active (&surface->wrapper)) { + return _cairo_surface_wrapper_mask (&surface->wrapper, + op, source, 0, mask, 0, clip); + } + + return CAIRO_STATUS_SUCCESS; + +BAIL: + inactive (surface); + return status; +} + +static cairo_int_status_t +_cairo_script_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_script_surface_t *surface = abstract_surface; + cairo_bool_t matrix_updated = FALSE; + cairo_status_t status; + + status = active (surface); + if (unlikely (status)) + return status; + + status = _cairo_surface_clipper_set_clip (&surface->clipper, clip); + if (unlikely (status)) + goto BAIL; + + status = _emit_context (surface); + if (unlikely (status)) + goto BAIL; + + status = _emit_identity (surface, &matrix_updated); + if (unlikely (status)) + goto BAIL; + + status = _emit_path (surface, path, FALSE); + if (unlikely (status)) + goto BAIL; + + status = _emit_source (surface, op, source); + if (unlikely (status)) + goto BAIL; + + status = _emit_scaling_matrix (surface, ctm, &matrix_updated); + if (unlikely (status)) + goto BAIL; + + status = _emit_operator (surface, op); + if (unlikely (status)) + goto BAIL; + + if (_scaling_matrix_equal (&surface->cr.current_ctm, + &surface->cr.current_stroke_matrix)) + { + matrix_updated = FALSE; + } + else + { + matrix_updated = TRUE; + surface->cr.current_stroke_matrix = surface->cr.current_ctm; + } + + status = _emit_stroke_style (surface, style, matrix_updated); + if (unlikely (status)) + goto BAIL; + + status = _emit_tolerance (surface, tolerance, matrix_updated); + if (unlikely (status)) + goto BAIL; + + status = _emit_antialias (surface, antialias); + if (unlikely (status)) + goto BAIL; + + _cairo_output_stream_puts (to_context (surface)->stream, "stroke+\n"); + + inactive (surface); + + if (_cairo_surface_wrapper_is_active (&surface->wrapper)) { + return _cairo_surface_wrapper_stroke (&surface->wrapper, + op, source, 0, path, + style, + ctm, ctm_inverse, + tolerance, antialias, + clip); + } + + return CAIRO_STATUS_SUCCESS; + +BAIL: + inactive (surface); + return status; +} + +static cairo_int_status_t +_cairo_script_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_script_surface_t *surface = abstract_surface; + cairo_bool_t matrix_updated = FALSE; + cairo_status_t status; + cairo_box_t box; + + status = active (surface); + if (unlikely (status)) + return status; + + status = _cairo_surface_clipper_set_clip (&surface->clipper, clip); + if (unlikely (status)) + goto BAIL; + + status = _emit_context (surface); + if (unlikely (status)) + goto BAIL; + + status = _emit_identity (surface, &matrix_updated); + if (unlikely (status)) + goto BAIL; + + status = _emit_source (surface, op, source); + if (unlikely (status)) + goto BAIL; + + if (! _cairo_path_fixed_is_box (path, &box)) { + status = _emit_fill_rule (surface, fill_rule); + if (unlikely (status)) + goto BAIL; + } + + if (path->has_curve_to) { + status = _emit_tolerance (surface, tolerance, matrix_updated); + if (unlikely (status)) + goto BAIL; + } + + if (! _cairo_path_fixed_fill_maybe_region (path)) { + status = _emit_antialias (surface, antialias); + if (unlikely (status)) + goto BAIL; + } + + status = _emit_path (surface, path, TRUE); + if (unlikely (status)) + goto BAIL; + + status = _emit_operator (surface, op); + if (unlikely (status)) + goto BAIL; + + _cairo_output_stream_puts (to_context (surface)->stream, "fill+\n"); + + inactive (surface); + + if (_cairo_surface_wrapper_is_active (&surface->wrapper)) { + return _cairo_surface_wrapper_fill (&surface->wrapper, + op, source, 0, path, + fill_rule, + tolerance, + antialias, + clip); + } + + return CAIRO_STATUS_SUCCESS; + +BAIL: + inactive (surface); + return status; +} + +static cairo_surface_t * +_cairo_script_surface_snapshot (void *abstract_surface) +{ + cairo_script_surface_t *surface = abstract_surface; + + if (_cairo_surface_wrapper_is_active (&surface->wrapper)) + return _cairo_surface_wrapper_snapshot (&surface->wrapper); + + return NULL; +} + +static cairo_bool_t +_cairo_script_surface_has_show_text_glyphs (void *abstract_surface) +{ + return TRUE; +} + +static const char * +_subpixel_order_to_string (cairo_subpixel_order_t subpixel_order) +{ + static const char *names[] = { + "SUBPIXEL_ORDER_DEFAULT", /* CAIRO_SUBPIXEL_ORDER_DEFAULT */ + "SUBPIXEL_ORDER_RGB", /* CAIRO_SUBPIXEL_ORDER_RGB */ + "SUBPIXEL_ORDER_BGR", /* CAIRO_SUBPIXEL_ORDER_BGR */ + "SUBPIXEL_ORDER_VRGB", /* CAIRO_SUBPIXEL_ORDER_VRGB */ + "SUBPIXEL_ORDER_VBGR" /* CAIRO_SUBPIXEL_ORDER_VBGR */ + }; + return names[subpixel_order]; +} +static const char * +_hint_style_to_string (cairo_hint_style_t hint_style) +{ + static const char *names[] = { + "HINT_STYLE_DEFAULT", /* CAIRO_HINT_STYLE_DEFAULT */ + "HINT_STYLE_NONE", /* CAIRO_HINT_STYLE_NONE */ + "HINT_STYLE_SLIGHT", /* CAIRO_HINT_STYLE_SLIGHT */ + "HINT_STYLE_MEDIUM", /* CAIRO_HINT_STYLE_MEDIUM */ + "HINT_STYLE_FULL" /* CAIRO_HINT_STYLE_FULL */ + }; + return names[hint_style]; +} +static const char * +_hint_metrics_to_string (cairo_hint_metrics_t hint_metrics) +{ + static const char *names[] = { + "HINT_METRICS_DEFAULT", /* CAIRO_HINT_METRICS_DEFAULT */ + "HINT_METRICS_OFF", /* CAIRO_HINT_METRICS_OFF */ + "HINT_METRICS_ON" /* CAIRO_HINT_METRICS_ON */ + }; + return names[hint_metrics]; +} + +static cairo_status_t +_emit_font_options (cairo_script_surface_t *surface, + cairo_font_options_t *font_options) +{ + cairo_script_context_t *ctx = to_context (surface); + + if (cairo_font_options_equal (&surface->cr.current_font_options, + font_options)) + { + return CAIRO_STATUS_SUCCESS; + } + + _cairo_output_stream_printf (ctx->stream, "<<"); + + if (font_options->antialias != surface->cr.current_font_options.antialias) { + _cairo_output_stream_printf (ctx->stream, + " /antialias //%s", + _antialias_to_string (font_options->antialias)); + } + + if (font_options->subpixel_order != + surface->cr.current_font_options.subpixel_order) + { + _cairo_output_stream_printf (ctx->stream, + " /subpixel-order //%s", + _subpixel_order_to_string (font_options->subpixel_order)); + } + + if (font_options->hint_style != + surface->cr.current_font_options.hint_style) + { + _cairo_output_stream_printf (ctx->stream, + " /hint-style //%s", + _hint_style_to_string (font_options->hint_style)); + } + + if (font_options->hint_metrics != + surface->cr.current_font_options.hint_metrics) + { + _cairo_output_stream_printf (ctx->stream, + " /hint-metrics //%s", + _hint_metrics_to_string (font_options->hint_metrics)); + } + + _cairo_output_stream_printf (ctx->stream, + " >> set-font-options\n"); + + surface->cr.current_font_options = *font_options; + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_script_scaled_font_fini (cairo_scaled_font_private_t *abstract_private, + cairo_scaled_font_t *scaled_font) +{ + cairo_script_font_t *priv = (cairo_script_font_t *)abstract_private; + cairo_script_context_t *ctx = (cairo_script_context_t *)abstract_private->key; + cairo_status_t status; + + status = cairo_device_acquire (&ctx->base); + if (likely (status == CAIRO_STATUS_SUCCESS)) { + _cairo_output_stream_printf (ctx->stream, + "/f%lu undef /sf%lu undef\n", + priv->id, + priv->id); + + _bitmap_release_id (&ctx->font_id, priv->id); + cairo_device_release (&ctx->base); + } + + cairo_list_del (&priv->link); + cairo_list_del (&priv->base.link); + free (priv); +} + +static cairo_script_font_t * +_cairo_script_font_get (cairo_script_context_t *ctx, cairo_scaled_font_t *font) +{ + return (cairo_script_font_t *) _cairo_scaled_font_find_private (font, ctx); +} + +static long unsigned +_cairo_script_font_id (cairo_script_context_t *ctx, cairo_scaled_font_t *font) +{ + return _cairo_script_font_get (ctx, font)->id; +} + +static cairo_status_t +_emit_type42_font (cairo_script_surface_t *surface, + cairo_scaled_font_t *scaled_font) +{ + cairo_script_context_t *ctx = to_context (surface); + const cairo_scaled_font_backend_t *backend; + cairo_output_stream_t *base85_stream; + cairo_output_stream_t *zlib_stream; + cairo_status_t status, status2; + unsigned long size; + unsigned int load_flags; + uint32_t len; + uint8_t *buf; + + backend = scaled_font->backend; + if (backend->load_truetype_table == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + size = 0; + status = backend->load_truetype_table (scaled_font, 0, 0, NULL, &size); + if (unlikely (status)) + return status; + + buf = _cairo_malloc (size); + if (unlikely (buf == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = backend->load_truetype_table (scaled_font, 0, 0, buf, &size); + if (unlikely (status)) { + free (buf); + return status; + } + +#if CAIRO_HAS_FT_FONT + load_flags = _cairo_ft_scaled_font_get_load_flags (scaled_font); +#else + load_flags = 0; +#endif + _cairo_output_stream_printf (ctx->stream, + "<< " + "/type 42 " + "/index 0 " + "/flags %d " + "/source <|", + load_flags); + + base85_stream = _cairo_base85_stream_create (ctx->stream); + len = to_be32 (size); + _cairo_output_stream_write (base85_stream, &len, sizeof (len)); + + zlib_stream = _cairo_deflate_stream_create (base85_stream); + + _cairo_output_stream_write (zlib_stream, buf, size); + free (buf); + + status2 = _cairo_output_stream_destroy (zlib_stream); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + + status2 = _cairo_output_stream_destroy (base85_stream); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + + _cairo_output_stream_printf (ctx->stream, + "~> >> font dup /f%lu exch def set-font-face", + _cairo_script_font_id (ctx, scaled_font)); + + return status; +} + +static cairo_status_t +_emit_scaled_font_init (cairo_script_surface_t *surface, + cairo_scaled_font_t *scaled_font, + cairo_script_font_t **font_out) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_script_font_t *font_private; + cairo_int_status_t status; + + font_private = _cairo_calloc (sizeof (cairo_script_font_t)); + if (unlikely (font_private == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_scaled_font_attach_private (scaled_font, &font_private->base, ctx, + _cairo_script_scaled_font_fini); + + font_private->parent = scaled_font; + font_private->subset_glyph_index = 0; + font_private->has_sfnt = TRUE; + + cairo_list_add (&font_private->link, &ctx->fonts); + + status = _bitmap_next_id (&ctx->font_id, + &font_private->id); + if (unlikely (status)) { + free (font_private); + return status; + } + + status = _emit_context (surface); + if (unlikely (status)) { + free (font_private); + return status; + } + + status = _emit_type42_font (surface, scaled_font); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) { + *font_out = font_private; + return status; + } + + font_private->has_sfnt = FALSE; + _cairo_output_stream_printf (ctx->stream, + "dict\n" + " /type 3 set\n" + " /metrics [%f %f %f %f %f] set\n" + " /glyphs array set\n" + " font dup /f%lu exch def set-font-face", + scaled_font->fs_extents.ascent, + scaled_font->fs_extents.descent, + scaled_font->fs_extents.height, + scaled_font->fs_extents.max_x_advance, + scaled_font->fs_extents.max_y_advance, + font_private->id); + + *font_out = font_private; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_scaled_font (cairo_script_surface_t *surface, + cairo_scaled_font_t *scaled_font) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_matrix_t matrix; + cairo_font_options_t options; + cairo_bool_t matrix_updated = FALSE; + cairo_status_t status; + cairo_script_font_t *font_private; + + cairo_scaled_font_get_ctm (scaled_font, &matrix); + status = _emit_scaling_matrix (surface, &matrix, &matrix_updated); + if (unlikely (status)) + return status; + + if (! matrix_updated && surface->cr.current_scaled_font == scaled_font) + return CAIRO_STATUS_SUCCESS; + + surface->cr.current_scaled_font = scaled_font; + + font_private = _cairo_script_font_get (ctx, scaled_font); + if (font_private == NULL) { + cairo_scaled_font_get_font_matrix (scaled_font, &matrix); + status = _emit_font_matrix (surface, &matrix); + if (unlikely (status)) + return status; + + _cairo_font_options_init_default (&options); + cairo_scaled_font_get_font_options (scaled_font, &options); + status = _emit_font_options (surface, &options); + if (unlikely (status)) + return status; + + status = _emit_scaled_font_init (surface, scaled_font, &font_private); + if (unlikely (status)) + return status; + + assert (target_is_active (surface)); + _cairo_output_stream_printf (ctx->stream, + " /scaled-font get /sf%lu exch def\n", + font_private->id); + } else { + _cairo_output_stream_printf (ctx->stream, + "sf%lu set-scaled-font\n", + font_private->id); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_scaled_glyph_vector (cairo_script_surface_t *surface, + cairo_scaled_font_t *scaled_font, + cairo_script_font_t *font_private, + cairo_scaled_glyph_t *scaled_glyph) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_script_implicit_context_t old_cr; + cairo_status_t status; + unsigned long index; + + index = ++font_private->subset_glyph_index; + scaled_glyph->dev_private_key = ctx; + scaled_glyph->dev_private = (void *)(uintptr_t)index; + + _cairo_output_stream_printf (ctx->stream, + "%lu <<\n" + " /metrics [%f %f %f %f %f %f]\n" + " /render {\n", + index, + scaled_glyph->fs_metrics.x_bearing, + scaled_glyph->fs_metrics.y_bearing, + scaled_glyph->fs_metrics.width, + scaled_glyph->fs_metrics.height, + scaled_glyph->fs_metrics.x_advance, + scaled_glyph->fs_metrics.y_advance); + + if (! _cairo_matrix_is_identity (&scaled_font->scale_inverse)) { + _cairo_output_stream_printf (ctx->stream, + "[%f %f %f %f %f %f] transform\n", + scaled_font->scale_inverse.xx, + scaled_font->scale_inverse.yx, + scaled_font->scale_inverse.xy, + scaled_font->scale_inverse.yy, + scaled_font->scale_inverse.x0, + scaled_font->scale_inverse.y0); + } + + old_cr = surface->cr; + _cairo_script_implicit_context_init (&surface->cr); + status = _cairo_recording_surface_replay (scaled_glyph->recording_surface, + &surface->base); + surface->cr = old_cr; + + _cairo_output_stream_puts (ctx->stream, "} >> set\n"); + + return status; +} + +static cairo_status_t +_emit_scaled_glyph_bitmap (cairo_script_surface_t *surface, + cairo_scaled_font_t *scaled_font, + cairo_script_font_t *font_private, + cairo_scaled_glyph_t *scaled_glyph) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_status_t status; + unsigned long index; + + index = ++font_private->subset_glyph_index; + scaled_glyph->dev_private_key = ctx; + scaled_glyph->dev_private = (void *)(uintptr_t)index; + + _cairo_output_stream_printf (ctx->stream, + "%lu <<\n" + " /metrics [%f %f %f %f %f %f]\n" + " /render {\n" + "%f %f translate\n", + index, + scaled_glyph->fs_metrics.x_bearing, + scaled_glyph->fs_metrics.y_bearing, + scaled_glyph->fs_metrics.width, + scaled_glyph->fs_metrics.height, + scaled_glyph->fs_metrics.x_advance, + scaled_glyph->fs_metrics.y_advance, + scaled_glyph->fs_metrics.x_bearing, + scaled_glyph->fs_metrics.y_bearing); + + status = _emit_image_surface (surface, scaled_glyph->surface); + if (unlikely (status)) + return status; + + _cairo_output_stream_puts (ctx->stream, "pattern "); + + if (! _cairo_matrix_is_identity (&scaled_font->font_matrix)) { + _cairo_output_stream_printf (ctx->stream, + "\n [%f %f %f %f %f %f] set-matrix\n", + scaled_font->font_matrix.xx, + scaled_font->font_matrix.yx, + scaled_font->font_matrix.xy, + scaled_font->font_matrix.yy, + scaled_font->font_matrix.x0, + scaled_font->font_matrix.y0); + } + _cairo_output_stream_puts (ctx->stream, + "mask\n} >> set\n"); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_scaled_glyph_prologue (cairo_script_surface_t *surface, + cairo_scaled_font_t *scaled_font) +{ + cairo_script_context_t *ctx = to_context (surface); + + _cairo_output_stream_printf (ctx->stream, "f%lu /glyphs get\n", + _cairo_script_font_id (ctx, scaled_font)); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_emit_scaled_glyphs (cairo_script_surface_t *surface, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + unsigned int num_glyphs) +{ + cairo_script_context_t *ctx = to_context (surface); + cairo_script_font_t *font_private; + cairo_status_t status; + unsigned int n; + cairo_bool_t have_glyph_prologue = FALSE; + + if (num_glyphs == 0) + return CAIRO_STATUS_SUCCESS; + + font_private = _cairo_script_font_get (ctx, scaled_font); + if (font_private->has_sfnt) + return CAIRO_STATUS_SUCCESS; + + _cairo_scaled_font_freeze_cache (scaled_font); + for (n = 0; n < num_glyphs; n++) { + cairo_scaled_glyph_t *scaled_glyph; + + status = _cairo_scaled_glyph_lookup (scaled_font, + glyphs[n].index, + CAIRO_SCALED_GLYPH_INFO_METRICS, + NULL, /* foreground color */ + &scaled_glyph); + if (unlikely (status)) + break; + + if (scaled_glyph->dev_private_key == ctx) + continue; + + status = _cairo_scaled_glyph_lookup (scaled_font, + glyphs[n].index, + CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + if (_cairo_status_is_error (status)) + break; + + if (status == CAIRO_STATUS_SUCCESS) { + if (! have_glyph_prologue) { + status = _emit_scaled_glyph_prologue (surface, scaled_font); + if (unlikely (status)) + break; + + have_glyph_prologue = TRUE; + } + + status = _emit_scaled_glyph_vector (surface, + scaled_font, font_private, + scaled_glyph); + if (unlikely (status)) + break; + + continue; + } + + status = _cairo_scaled_glyph_lookup (scaled_font, + glyphs[n].index, + CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + if (_cairo_status_is_error (status)) + break; + + if (status == CAIRO_STATUS_SUCCESS) { + if (! have_glyph_prologue) { + status = _emit_scaled_glyph_prologue (surface, scaled_font); + if (unlikely (status)) + break; + + have_glyph_prologue = TRUE; + } + + status = _emit_scaled_glyph_bitmap (surface, + scaled_font, + font_private, + scaled_glyph); + if (unlikely (status)) + break; + + continue; + } + } + _cairo_scaled_font_thaw_cache (scaled_font); + + if (have_glyph_prologue) { + _cairo_output_stream_puts (to_context (surface)->stream, "pop pop\n"); + } + + return status; +} + +static void +to_octal (int value, char *buf, size_t size) +{ + do { + buf[--size] = '0' + (value & 7); + value >>= 3; + } while (size); +} + +static void +_emit_string_literal (cairo_script_surface_t *surface, + const char *utf8, int len) +{ + cairo_script_context_t *ctx = to_context (surface); + char c; + const char *end; + + _cairo_output_stream_puts (ctx->stream, "("); + + if (utf8 == NULL) { + end = utf8; + } else { + if (len < 0) + len = strlen (utf8); + end = utf8 + len; + } + + while (utf8 < end) { + switch ((c = *utf8++)) { + case '\n': + c = 'n'; + goto ESCAPED_CHAR; + case '\r': + c = 'r'; + goto ESCAPED_CHAR; + case '\t': + c = 't'; + goto ESCAPED_CHAR; + case '\b': + c = 'b'; + goto ESCAPED_CHAR; + case '\f': + c = 'f'; + goto ESCAPED_CHAR; + case '\\': + case '(': + case ')': +ESCAPED_CHAR: + _cairo_output_stream_printf (ctx->stream, "\\%c", c); + break; + default: + if (_cairo_isprint(c)) { + _cairo_output_stream_printf (ctx->stream, "%c", c); + } else { + char buf[4] = { '\\' }; + + to_octal (c, buf+1, 3); + _cairo_output_stream_write (ctx->stream, buf, 4); + } + break; + } + } + _cairo_output_stream_puts (ctx->stream, ")"); +} + +static cairo_int_status_t +_cairo_script_surface_show_text_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const char *utf8, + int utf8_len, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t backward, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_script_surface_t *surface = abstract_surface; + cairo_script_context_t *ctx = to_context (surface); + cairo_script_font_t *font_private; + cairo_scaled_glyph_t *scaled_glyph; + cairo_matrix_t matrix; + cairo_status_t status; + double x, y, ix, iy; + int n; + cairo_output_stream_t *base85_stream = NULL; + + status = active (surface); + if (unlikely (status)) + return status; + + status = _cairo_surface_clipper_set_clip (&surface->clipper, clip); + if (unlikely (status)) + goto BAIL; + + status = _emit_context (surface); + if (unlikely (status)) + goto BAIL; + + status = _emit_source (surface, op, source); + if (unlikely (status)) + goto BAIL; + + status = _emit_scaled_font (surface, scaled_font); + if (unlikely (status)) + goto BAIL; + + status = _emit_operator (surface, op); + if (unlikely (status)) + goto BAIL; + + status = _emit_scaled_glyphs (surface, scaled_font, glyphs, num_glyphs); + if (unlikely (status)) + goto BAIL; + + /* (utf8) [cx cy [glyphs]] [clusters] backward show_text_glyphs */ + /* [cx cy [glyphs]] show_glyphs */ + + if (utf8 != NULL && clusters != NULL) { + _emit_string_literal (surface, utf8, utf8_len); + _cairo_output_stream_puts (ctx->stream, " "); + } + + matrix = surface->cr.current_ctm; + status = cairo_matrix_invert (&matrix); + assert (status == CAIRO_STATUS_SUCCESS); + + ix = x = glyphs[0].x; + iy = y = glyphs[0].y; + cairo_matrix_transform_point (&matrix, &ix, &iy); + ix -= scaled_font->font_matrix.x0; + iy -= scaled_font->font_matrix.y0; + + _cairo_scaled_font_freeze_cache (scaled_font); + font_private = _cairo_script_font_get (ctx, scaled_font); + + _cairo_output_stream_printf (ctx->stream, + "[%f %f ", + ix, iy); + + for (n = 0; n < num_glyphs; n++) { + if (font_private->has_sfnt) { + if (glyphs[n].index > 256) + break; + } else { + status = _cairo_scaled_glyph_lookup (scaled_font, + glyphs[n].index, + CAIRO_SCALED_GLYPH_INFO_METRICS, + NULL, /* foreground color */ + &scaled_glyph); + if (unlikely (status)) { + _cairo_scaled_font_thaw_cache (scaled_font); + goto BAIL; + } + + if ((uintptr_t)scaled_glyph->dev_private > 256) + break; + } + } + + if (n == num_glyphs) { + _cairo_output_stream_puts (ctx->stream, "<~"); + base85_stream = _cairo_base85_stream_create (ctx->stream); + } else + _cairo_output_stream_puts (ctx->stream, "["); + + for (n = 0; n < num_glyphs; n++) { + double dx, dy; + + status = _cairo_scaled_glyph_lookup (scaled_font, + glyphs[n].index, + CAIRO_SCALED_GLYPH_INFO_METRICS, + NULL, /* foreground color */ + &scaled_glyph); + if (unlikely (status)) { + _cairo_scaled_font_thaw_cache (scaled_font); + goto BAIL; + } + + if (fabs (glyphs[n].x - x) > 1e-5 || fabs (glyphs[n].y - y) > 1e-5) { + if (fabs (glyphs[n].y - y) < 1e-5) { + if (base85_stream != NULL) { + status = _cairo_output_stream_destroy (base85_stream); + if (unlikely (status)) { + base85_stream = NULL; + break; + } + + _cairo_output_stream_printf (ctx->stream, + "~> %f <~", glyphs[n].x - x); + base85_stream = _cairo_base85_stream_create (ctx->stream); + } else { + _cairo_output_stream_printf (ctx->stream, + " ] %f [ ", glyphs[n].x - x); + } + + x = glyphs[n].x; + } else { + ix = x = glyphs[n].x; + iy = y = glyphs[n].y; + cairo_matrix_transform_point (&matrix, &ix, &iy); + ix -= scaled_font->font_matrix.x0; + iy -= scaled_font->font_matrix.y0; + if (base85_stream != NULL) { + status = _cairo_output_stream_destroy (base85_stream); + if (unlikely (status)) { + base85_stream = NULL; + break; + } + + _cairo_output_stream_printf (ctx->stream, + "~> %f %f <~", + ix, iy); + base85_stream = _cairo_base85_stream_create (ctx->stream); + } else { + _cairo_output_stream_printf (ctx->stream, + " ] %f %f [ ", + ix, iy); + } + } + } + if (base85_stream != NULL) { + uint8_t c; + + if (font_private->has_sfnt) + c = glyphs[n].index; + else + c = (uint8_t) (uintptr_t) scaled_glyph->dev_private; + + _cairo_output_stream_write (base85_stream, &c, 1); + } else { + if (font_private->has_sfnt) + _cairo_output_stream_printf (ctx->stream, " %lu", + glyphs[n].index); + else + _cairo_output_stream_printf (ctx->stream, " %lu", + (long unsigned) (uintptr_t)scaled_glyph->dev_private); + } + + dx = scaled_glyph->metrics.x_advance; + dy = scaled_glyph->metrics.y_advance; + cairo_matrix_transform_distance (&scaled_font->ctm, &dx, &dy); + x += dx; + y += dy; + } + _cairo_scaled_font_thaw_cache (scaled_font); + + if (base85_stream != NULL) { + cairo_status_t status2; + + status2 = _cairo_output_stream_destroy (base85_stream); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + + _cairo_output_stream_printf (ctx->stream, "~>"); + } else { + _cairo_output_stream_puts (ctx->stream, " ]"); + } + if (unlikely (status)) + return status; + + if (utf8 != NULL && clusters != NULL) { + for (n = 0; n < num_clusters; n++) { + if (clusters[n].num_bytes > UCHAR_MAX || + clusters[n].num_glyphs > UCHAR_MAX) + { + break; + } + } + + if (n < num_clusters) { + _cairo_output_stream_puts (ctx->stream, "] [ "); + for (n = 0; n < num_clusters; n++) { + _cairo_output_stream_printf (ctx->stream, + "%d %d ", + clusters[n].num_bytes, + clusters[n].num_glyphs); + } + _cairo_output_stream_puts (ctx->stream, "]"); + } + else + { + _cairo_output_stream_puts (ctx->stream, "] <~"); + base85_stream = _cairo_base85_stream_create (ctx->stream); + for (n = 0; n < num_clusters; n++) { + uint8_t c[2]; + c[0] = clusters[n].num_bytes; + c[1] = clusters[n].num_glyphs; + _cairo_output_stream_write (base85_stream, c, 2); + } + status = _cairo_output_stream_destroy (base85_stream); + if (unlikely (status)) + goto BAIL; + + _cairo_output_stream_puts (ctx->stream, "~>"); + } + + _cairo_output_stream_printf (ctx->stream, + " //%s show-text-glyphs\n", + _direction_to_string (backward)); + } else { + _cairo_output_stream_puts (ctx->stream, + "] show-glyphs\n"); + } + + inactive (surface); + + if (_cairo_surface_wrapper_is_active (&surface->wrapper)){ + return _cairo_surface_wrapper_show_text_glyphs (&surface->wrapper, + op, source, 0, + utf8, utf8_len, + glyphs, num_glyphs, + clusters, num_clusters, + backward, + scaled_font, + clip); + } + + return CAIRO_STATUS_SUCCESS; + +BAIL: + inactive (surface); + return status; +} + +static cairo_bool_t +_cairo_script_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle) +{ + cairo_script_surface_t *surface = abstract_surface; + + if (_cairo_surface_wrapper_is_active (&surface->wrapper)) { + return _cairo_surface_wrapper_get_extents (&surface->wrapper, + rectangle); + } + + if (surface->width < 0 || surface->height < 0) + return FALSE; + + rectangle->x = 0; + rectangle->y = 0; + rectangle->width = surface->width; + rectangle->height = surface->height; + + return TRUE; +} + +static const cairo_surface_backend_t +_cairo_script_surface_backend = { + CAIRO_SURFACE_TYPE_SCRIPT, + _cairo_script_surface_finish, + + _cairo_default_context_create, + + _cairo_script_surface_create_similar, + NULL, /* create similar image */ + NULL, /* map to image */ + NULL, /* unmap image */ + + _cairo_script_surface_source, + _cairo_script_surface_acquire_source_image, + _cairo_script_surface_release_source_image, + _cairo_script_surface_snapshot, + + _cairo_script_surface_copy_page, + _cairo_script_surface_show_page, + + _cairo_script_surface_get_extents, + NULL, /* get_font_options */ + + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + + _cairo_script_surface_paint, + _cairo_script_surface_mask, + _cairo_script_surface_stroke, + _cairo_script_surface_fill, + NULL, /* fill/stroke */ + NULL, /* glyphs */ + _cairo_script_surface_has_show_text_glyphs, + _cairo_script_surface_show_text_glyphs +}; + +static void +_cairo_script_implicit_context_init (cairo_script_implicit_context_t *cr) +{ + cr->current_operator = CAIRO_GSTATE_OPERATOR_DEFAULT; + cr->current_fill_rule = CAIRO_GSTATE_FILL_RULE_DEFAULT; + cr->current_tolerance = CAIRO_GSTATE_TOLERANCE_DEFAULT; + cr->current_antialias = CAIRO_ANTIALIAS_DEFAULT; + _cairo_stroke_style_init (&cr->current_style); + _cairo_pattern_init_solid (&cr->current_source.solid, + CAIRO_COLOR_BLACK); + _cairo_path_fixed_init (&cr->current_path); + cairo_matrix_init_identity (&cr->current_ctm); + cairo_matrix_init_identity (&cr->current_stroke_matrix); + cairo_matrix_init_identity (&cr->current_font_matrix); + _cairo_font_options_init_default (&cr->current_font_options); + cr->current_scaled_font = NULL; + cr->has_clip = FALSE; +} + +static void +_cairo_script_implicit_context_reset (cairo_script_implicit_context_t *cr) +{ + free (cr->current_style.dash); + cr->current_style.dash = NULL; + + _cairo_pattern_fini (&cr->current_source.base); + _cairo_path_fixed_fini (&cr->current_path); + + _cairo_script_implicit_context_init (cr); +} + +static cairo_script_surface_t * +_cairo_script_surface_create_internal (cairo_script_context_t *ctx, + cairo_content_t content, + cairo_rectangle_t *extents, + cairo_surface_t *passthrough) +{ + cairo_script_surface_t *surface; + + if (unlikely (ctx == NULL)) + return (cairo_script_surface_t *) _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NULL_POINTER)); + + surface = _cairo_calloc (sizeof (cairo_script_surface_t)); + if (unlikely (surface == NULL)) + return (cairo_script_surface_t *) _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_surface_init (&surface->base, + &_cairo_script_surface_backend, + &ctx->base, + content, + TRUE); /* is_vector */ + + _cairo_surface_wrapper_init (&surface->wrapper, passthrough); + + _cairo_surface_clipper_init (&surface->clipper, + _cairo_script_surface_clipper_intersect_clip_path); + + surface->width = surface->height = -1; + if (extents) { + surface->width = extents->width; + surface->height = extents->height; + cairo_surface_set_device_offset (&surface->base, + -extents->x, -extents->y); + } + + surface->emitted = FALSE; + surface->defined = FALSE; + surface->active = FALSE; + surface->operand.type = SURFACE; + cairo_list_init (&surface->operand.link); + + _cairo_script_implicit_context_init (&surface->cr); + + return surface; +} + +static const cairo_device_backend_t _cairo_script_device_backend = { + CAIRO_DEVICE_TYPE_SCRIPT, + + NULL, NULL, /* lock, unlock */ + + _device_flush, /* flush */ + _device_finish, /* finish */ + _device_destroy +}; + +cairo_device_t * +_cairo_script_context_create_internal (cairo_output_stream_t *stream) +{ + cairo_script_context_t *ctx; + + ctx = _cairo_calloc (sizeof (cairo_script_context_t)); + if (unlikely (ctx == NULL)) + return _cairo_device_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + memset (ctx, 0, sizeof (cairo_script_context_t)); + + _cairo_device_init (&ctx->base, &_cairo_script_device_backend); + + cairo_list_init (&ctx->operands); + cairo_list_init (&ctx->deferred); + ctx->stream = stream; + ctx->mode = CAIRO_SCRIPT_MODE_ASCII; + + cairo_list_init (&ctx->fonts); + cairo_list_init (&ctx->defines); + + ctx->attach_snapshots = TRUE; + + return &ctx->base; +} + +void +_cairo_script_context_attach_snapshots (cairo_device_t *device, + cairo_bool_t enable) +{ + cairo_script_context_t *ctx; + + ctx = (cairo_script_context_t *) device; + ctx->attach_snapshots = enable; +} + +static cairo_device_t * +_cairo_script_context_create (cairo_output_stream_t *stream) +{ + cairo_script_context_t *ctx; + + ctx = (cairo_script_context_t *) + _cairo_script_context_create_internal (stream); + if (unlikely (ctx->base.status)) + return &ctx->base; + + ctx->owns_stream = TRUE; + _cairo_output_stream_puts (ctx->stream, "%!CairoScript\n"); + return &ctx->base; +} + +/** + * cairo_script_create: + * @filename: the name (path) of the file to write the script to + * + * Creates a output device for emitting the script, used when + * creating the individual surfaces. + * + * Return value: a pointer to the newly created device. The caller + * owns the surface and should call cairo_device_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" device if an error such as out of memory + * occurs. You can use cairo_device_status() to check for this. + * + * Since: 1.12 + **/ +cairo_device_t * +cairo_script_create (const char *filename) +{ + cairo_output_stream_t *stream; + cairo_status_t status; + + stream = _cairo_output_stream_create_for_filename (filename); + if ((status = _cairo_output_stream_get_status (stream))) + return _cairo_device_create_in_error (status); + + return _cairo_script_context_create (stream); +} + +/** + * cairo_script_create_for_stream: + * @write_func: callback function passed the bytes written to the script + * @closure: user data to be passed to the callback + * + * Creates a output device for emitting the script, used when + * creating the individual surfaces. + * + * Return value: a pointer to the newly created device. The caller + * owns the surface and should call cairo_device_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" device if an error such as out of memory + * occurs. You can use cairo_device_status() to check for this. + * + * Since: 1.12 + **/ +cairo_device_t * +cairo_script_create_for_stream (cairo_write_func_t write_func, + void *closure) +{ + cairo_output_stream_t *stream; + cairo_status_t status; + + stream = _cairo_output_stream_create (write_func, NULL, closure); + if ((status = _cairo_output_stream_get_status (stream))) + return _cairo_device_create_in_error (status); + + return _cairo_script_context_create (stream); +} + +/** + * cairo_script_write_comment: + * @script: the script (output device) + * @comment: the string to emit + * @len:the length of the string to write, or -1 to use strlen() + * + * Emit a string verbatim into the script. + * + * Since: 1.12 + **/ +void +cairo_script_write_comment (cairo_device_t *script, + const char *comment, + int len) +{ + cairo_script_context_t *context = (cairo_script_context_t *) script; + + if (len < 0) + len = strlen (comment); + + _cairo_output_stream_puts (context->stream, "% "); + _cairo_output_stream_write (context->stream, comment, len); + _cairo_output_stream_puts (context->stream, "\n"); +} + +/** + * cairo_script_set_mode: + * @script: The script (output device) + * @mode: the new mode + * + * Change the output mode of the script + * + * Since: 1.12 + **/ +void +cairo_script_set_mode (cairo_device_t *script, + cairo_script_mode_t mode) +{ + cairo_script_context_t *context = (cairo_script_context_t *) script; + + context->mode = mode; +} + +/** + * cairo_script_get_mode: + * @script: The script (output device) to query + * + * Queries the script for its current output mode. + * + * Return value: the current output mode of the script + * + * Since: 1.12 + **/ +cairo_script_mode_t +cairo_script_get_mode (cairo_device_t *script) +{ + cairo_script_context_t *context = (cairo_script_context_t *) script; + + return context->mode; +} + +/** + * cairo_script_surface_create: + * @script: the script (output device) + * @content: the content of the surface + * @width: width in pixels + * @height: height in pixels + * + * Create a new surface that will emit its rendering through @script + * + * Return value: a pointer to the newly created surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if an error such as out of memory + * occurs. You can use cairo_surface_status() to check for this. + * + * Since: 1.12 + **/ +cairo_surface_t * +cairo_script_surface_create (cairo_device_t *script, + cairo_content_t content, + double width, + double height) +{ + cairo_rectangle_t *extents, r; + + if (unlikely (script->backend->type != CAIRO_DEVICE_TYPE_SCRIPT)) + return _cairo_surface_create_in_error (CAIRO_STATUS_DEVICE_TYPE_MISMATCH); + + if (unlikely (script->status)) + return _cairo_surface_create_in_error (script->status); + + extents = NULL; + if (width > 0 && height > 0) { + r.x = r.y = 0; + r.width = width; + r.height = height; + extents = &r; + } + return &_cairo_script_surface_create_internal ((cairo_script_context_t *) script, + content, extents, + NULL)->base; +} + +/** + * cairo_script_surface_create_for_target: + * @script: the script (output device) + * @target: a target surface to wrap + * + * Create a pxoy surface that will render to @target and record + * the operations to @device. + * + * Return value: a pointer to the newly created surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if an error such as out of memory + * occurs. You can use cairo_surface_status() to check for this. + * + * Since: 1.12 + **/ +cairo_surface_t * +cairo_script_surface_create_for_target (cairo_device_t *script, + cairo_surface_t *target) +{ + cairo_rectangle_int_t extents; + cairo_rectangle_t rect, *r; + + if (unlikely (script->backend->type != CAIRO_DEVICE_TYPE_SCRIPT)) + return _cairo_surface_create_in_error (CAIRO_STATUS_DEVICE_TYPE_MISMATCH); + + if (unlikely (script->status)) + return _cairo_surface_create_in_error (script->status); + + if (unlikely (target->status)) + return _cairo_surface_create_in_error (target->status); + + r = NULL; + if (_cairo_surface_get_extents (target, &extents)) { + rect.x = rect.y = 0; + rect.width = extents.width; + rect.height = extents.height; + r= ▭ + } + return &_cairo_script_surface_create_internal ((cairo_script_context_t *) script, + target->content, r, + target)->base; +} + +/** + * cairo_script_from_recording_surface: + * @script: the script (output device) + * @recording_surface: the recording surface to replay + * + * Converts the record operations in @recording_surface into a script. + * + * Return value: #CAIRO_STATUS_SUCCESS on successful completion or an error code. + * + * Since: 1.12 + **/ +cairo_status_t +cairo_script_from_recording_surface (cairo_device_t *script, + cairo_surface_t *recording_surface) +{ + cairo_rectangle_t r, *extents; + cairo_surface_t *surface; + cairo_status_t status; + + if (unlikely (script->backend->type != CAIRO_DEVICE_TYPE_SCRIPT)) + return _cairo_error (CAIRO_STATUS_DEVICE_TYPE_MISMATCH); + + if (unlikely (script->status)) + return _cairo_error (script->status); + + if (unlikely (recording_surface->status)) + return recording_surface->status; + + if (unlikely (! _cairo_surface_is_recording (recording_surface))) + return _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + + extents = NULL; + if (_cairo_recording_surface_get_bounds (recording_surface, &r)) + extents = &r; + + surface = &_cairo_script_surface_create_internal ((cairo_script_context_t *) script, + recording_surface->content, + extents, + NULL)->base; + if (unlikely (surface->status)) + return surface->status; + + status = _cairo_recording_surface_replay (recording_surface, surface); + cairo_surface_destroy (surface); + + return status; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-script.h b/local/recipes/libs/cairo/source/src/cairo-script.h new file mode 100644 index 0000000000..b5a8cf32d0 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-script.h @@ -0,0 +1,98 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_SCRIPT_H +#define CAIRO_SCRIPT_H + +#include "cairo.h" + +#if CAIRO_HAS_SCRIPT_SURFACE + +CAIRO_BEGIN_DECLS + +/** + * cairo_script_mode_t: + * @CAIRO_SCRIPT_MODE_ASCII: the output will be in readable text (default). (Since 1.12) + * @CAIRO_SCRIPT_MODE_BINARY: the output will use byte codes. (Since 1.12) + * + * A set of script output variants. + * + * Since: 1.12 + **/ +typedef enum { + CAIRO_SCRIPT_MODE_ASCII, + CAIRO_SCRIPT_MODE_BINARY +} cairo_script_mode_t; + +cairo_public cairo_device_t * +cairo_script_create (const char *filename); + +cairo_public cairo_device_t * +cairo_script_create_for_stream (cairo_write_func_t write_func, + void *closure); + +cairo_public void +cairo_script_write_comment (cairo_device_t *script, + const char *comment, + int len); + +cairo_public void +cairo_script_set_mode (cairo_device_t *script, + cairo_script_mode_t mode); + +cairo_public cairo_script_mode_t +cairo_script_get_mode (cairo_device_t *script); + +cairo_public cairo_surface_t * +cairo_script_surface_create (cairo_device_t *script, + cairo_content_t content, + double width, + double height); + +cairo_public cairo_surface_t * +cairo_script_surface_create_for_target (cairo_device_t *script, + cairo_surface_t *target); + +cairo_public cairo_status_t +cairo_script_from_recording_surface (cairo_device_t *script, + cairo_surface_t *recording_surface); + +CAIRO_END_DECLS + +#else /*CAIRO_HAS_SCRIPT_SURFACE*/ +# error Cairo was not compiled with support for the CairoScript backend +#endif /*CAIRO_HAS_SCRIPT_SURFACE*/ + +#endif /*CAIRO_SCRIPT_H*/ diff --git a/local/recipes/libs/cairo/source/src/cairo-shape-mask-compositor.c b/local/recipes/libs/cairo/source/src/cairo-shape-mask-compositor.c new file mode 100644 index 0000000000..0f4918603d --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-shape-mask-compositor.c @@ -0,0 +1,340 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2012 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-compositor-private.h" +#include "cairo-clip-private.h" +#include "cairo-pattern-private.h" +#include "cairo-surface-private.h" +#include "cairo-surface-offset-private.h" + +static cairo_int_status_t +_cairo_shape_mask_compositor_stroke (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_surface_t *mask; + cairo_surface_pattern_t pattern; + cairo_int_status_t status; + cairo_clip_t *clip; + + if (! extents->is_bounded) + return CAIRO_INT_STATUS_UNSUPPORTED; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + mask = _cairo_surface_create_scratch (extents->surface, + CAIRO_CONTENT_ALPHA, + extents->bounded.width, + extents->bounded.height, + NULL); + if (unlikely (mask->status)) + return mask->status; + + clip = extents->clip; + if (! _cairo_clip_is_region (clip)) + clip = _cairo_clip_copy_region (clip); + + if (! mask->is_clear) { + status = _cairo_surface_offset_paint (mask, + extents->bounded.x, + extents->bounded.y, + CAIRO_OPERATOR_CLEAR, + &_cairo_pattern_clear.base, + clip); + if (unlikely (status)) + goto error; + } + + status = _cairo_surface_offset_stroke (mask, + extents->bounded.x, + extents->bounded.y, + CAIRO_OPERATOR_ADD, + &_cairo_pattern_white.base, + path, style, ctm, ctm_inverse, + tolerance, antialias, + clip); + if (unlikely (status)) + goto error; + + if (clip != extents->clip) { + status = _cairo_clip_combine_with_surface (extents->clip, mask, + extents->bounded.x, + extents->bounded.y); + if (unlikely (status)) + goto error; + } + + _cairo_pattern_init_for_surface (&pattern, mask); + cairo_matrix_init_translate (&pattern.base.matrix, + -extents->bounded.x, + -extents->bounded.y); + pattern.base.filter = CAIRO_FILTER_NEAREST; + pattern.base.extend = CAIRO_EXTEND_NONE; + if (extents->op == CAIRO_OPERATOR_SOURCE) { + status = _cairo_surface_mask (extents->surface, + CAIRO_OPERATOR_DEST_OUT, + &_cairo_pattern_white.base, + &pattern.base, + clip); + if (status == CAIRO_INT_STATUS_SUCCESS) { + status = _cairo_surface_mask (extents->surface, + CAIRO_OPERATOR_ADD, + &extents->source_pattern.base, + &pattern.base, + clip); + } + } else { + status = _cairo_surface_mask (extents->surface, + extents->op, + &extents->source_pattern.base, + &pattern.base, + clip); + } + _cairo_pattern_fini (&pattern.base); + +error: + cairo_surface_destroy (mask); + if (clip != extents->clip) + _cairo_clip_destroy (clip); + return status; +} + +static cairo_int_status_t +_cairo_shape_mask_compositor_fill (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_surface_t *mask; + cairo_surface_pattern_t pattern; + cairo_int_status_t status; + cairo_clip_t *clip; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (! extents->is_bounded) + return CAIRO_INT_STATUS_UNSUPPORTED; + + mask = _cairo_surface_create_scratch (extents->surface, + CAIRO_CONTENT_ALPHA, + extents->bounded.width, + extents->bounded.height, + NULL); + if (unlikely (mask->status)) + return mask->status; + + clip = extents->clip; + if (! _cairo_clip_is_region (clip)) + clip = _cairo_clip_copy_region (clip); + + if (! mask->is_clear) { + status = _cairo_surface_offset_paint (mask, + extents->bounded.x, + extents->bounded.y, + CAIRO_OPERATOR_CLEAR, + &_cairo_pattern_clear.base, + clip); + if (unlikely (status)) + goto error; + } + + status = _cairo_surface_offset_fill (mask, + extents->bounded.x, + extents->bounded.y, + CAIRO_OPERATOR_ADD, + &_cairo_pattern_white.base, + path, fill_rule, tolerance, antialias, + clip); + if (unlikely (status)) + goto error; + + if (clip != extents->clip) { + status = _cairo_clip_combine_with_surface (extents->clip, mask, + extents->bounded.x, + extents->bounded.y); + if (unlikely (status)) + goto error; + } + + _cairo_pattern_init_for_surface (&pattern, mask); + cairo_matrix_init_translate (&pattern.base.matrix, + -extents->bounded.x, + -extents->bounded.y); + pattern.base.filter = CAIRO_FILTER_NEAREST; + pattern.base.extend = CAIRO_EXTEND_NONE; + if (extents->op == CAIRO_OPERATOR_SOURCE) { + status = _cairo_surface_mask (extents->surface, + CAIRO_OPERATOR_DEST_OUT, + &_cairo_pattern_white.base, + &pattern.base, + clip); + if (status == CAIRO_INT_STATUS_SUCCESS) { + status = _cairo_surface_mask (extents->surface, + CAIRO_OPERATOR_ADD, + &extents->source_pattern.base, + &pattern.base, + clip); + } + } else { + status = _cairo_surface_mask (extents->surface, + extents->op, + &extents->source_pattern.base, + &pattern.base, + clip); + } + _cairo_pattern_fini (&pattern.base); + +error: + if (clip != extents->clip) + _cairo_clip_destroy (clip); + cairo_surface_destroy (mask); + return status; +} + +static cairo_int_status_t +_cairo_shape_mask_compositor_glyphs (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_bool_t overlap) +{ + cairo_surface_t *mask; + cairo_surface_pattern_t pattern; + cairo_int_status_t status; + cairo_clip_t *clip; + + if (! extents->is_bounded) + return CAIRO_INT_STATUS_UNSUPPORTED; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + mask = _cairo_surface_create_scratch (extents->surface, + CAIRO_CONTENT_ALPHA, + extents->bounded.width, + extents->bounded.height, + NULL); + if (unlikely (mask->status)) + return mask->status; + + clip = extents->clip; + if (! _cairo_clip_is_region (clip)) + clip = _cairo_clip_copy_region (clip); + + if (! mask->is_clear) { + status = _cairo_surface_offset_paint (mask, + extents->bounded.x, + extents->bounded.y, + CAIRO_OPERATOR_CLEAR, + &_cairo_pattern_clear.base, + clip); + if (unlikely (status)) + goto error; + } + + status = _cairo_surface_offset_glyphs (mask, + extents->bounded.x, + extents->bounded.y, + CAIRO_OPERATOR_ADD, + &_cairo_pattern_white.base, + scaled_font, glyphs, num_glyphs, + clip); + if (unlikely (status)) + goto error; + + if (clip != extents->clip) { + status = _cairo_clip_combine_with_surface (extents->clip, mask, + extents->bounded.x, + extents->bounded.y); + if (unlikely (status)) + goto error; + } + + _cairo_pattern_init_for_surface (&pattern, mask); + cairo_matrix_init_translate (&pattern.base.matrix, + -extents->bounded.x, + -extents->bounded.y); + pattern.base.filter = CAIRO_FILTER_NEAREST; + pattern.base.extend = CAIRO_EXTEND_NONE; + if (extents->op == CAIRO_OPERATOR_SOURCE) { + status = _cairo_surface_mask (extents->surface, + CAIRO_OPERATOR_DEST_OUT, + &_cairo_pattern_white.base, + &pattern.base, + clip); + if (status == CAIRO_INT_STATUS_SUCCESS) { + status = _cairo_surface_mask (extents->surface, + CAIRO_OPERATOR_ADD, + &extents->source_pattern.base, + &pattern.base, + clip); + } + } else { + status = _cairo_surface_mask (extents->surface, + extents->op, + &extents->source_pattern.base, + &pattern.base, + clip); + } + _cairo_pattern_fini (&pattern.base); + +error: + if (clip != extents->clip) + _cairo_clip_destroy (clip); + cairo_surface_destroy (mask); + return status; +} + +void +_cairo_shape_mask_compositor_init (cairo_compositor_t *compositor, + const cairo_compositor_t *delegate) +{ + compositor->delegate = delegate; + + compositor->paint = NULL; + compositor->mask = NULL; + compositor->fill = _cairo_shape_mask_compositor_fill; + compositor->stroke = _cairo_shape_mask_compositor_stroke; + compositor->glyphs = _cairo_shape_mask_compositor_glyphs; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-slope-private.h b/local/recipes/libs/cairo/source/src/cairo-slope-private.h new file mode 100644 index 0000000000..6a58c9f456 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-slope-private.h @@ -0,0 +1,72 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef _CAIRO_SLOPE_PRIVATE_H +#define _CAIRO_SLOPE_PRIVATE_H + +#include "cairo-types-private.h" +#include "cairo-fixed-private.h" + +static inline void +_cairo_slope_init (cairo_slope_t *slope, + const cairo_point_t *a, + const cairo_point_t *b) +{ + slope->dx = b->x - a->x; + slope->dy = b->y - a->y; +} + +static inline cairo_bool_t +_cairo_slope_equal (const cairo_slope_t *a, const cairo_slope_t *b) +{ + return _cairo_int64_eq (_cairo_int32x32_64_mul (a->dy, b->dx), + _cairo_int32x32_64_mul (b->dy, a->dx)); +} + +static inline cairo_bool_t +_cairo_slope_backwards (const cairo_slope_t *a, const cairo_slope_t *b) +{ + return _cairo_int64_negative (_cairo_int64_add (_cairo_int32x32_64_mul (a->dx, b->dx), + _cairo_int32x32_64_mul (a->dy, b->dy))); +} + +cairo_private int +_cairo_slope_compare (const cairo_slope_t *a, + const cairo_slope_t *b) cairo_pure; + + +#endif /* _CAIRO_SLOPE_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-slope.c b/local/recipes/libs/cairo/source/src/cairo-slope.c new file mode 100644 index 0000000000..cc5f30cb0b --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-slope.c @@ -0,0 +1,99 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" + +#include "cairo-slope-private.h" + +/* Compare two slopes. Slope angles begin at 0 in the direction of the + positive X axis and increase in the direction of the positive Y + axis. + + This function always compares the slope vectors based on the + smaller angular difference between them, (that is based on an + angular difference that is strictly less than pi). To break ties + when comparing slope vectors with an angular difference of exactly + pi, the vector with a positive dx (or positive dy if dx's are zero) + is considered to be more positive than the other. + + Also, all slope vectors with both dx==0 and dy==0 are considered + equal and more positive than any non-zero vector. + + < 0 => a less positive than b + == 0 => a equal to b + > 0 => a more positive than b +*/ +int +_cairo_slope_compare (const cairo_slope_t *a, const cairo_slope_t *b) +{ + cairo_int64_t ady_bdx = _cairo_int32x32_64_mul (a->dy, b->dx); + cairo_int64_t bdy_adx = _cairo_int32x32_64_mul (b->dy, a->dx); + int cmp; + + cmp = _cairo_int64_cmp (ady_bdx, bdy_adx); + if (cmp) + return cmp; + + /* special-case zero vectors. the intended logic here is: + * zero vectors all compare equal, and more positive than any + * non-zero vector. + */ + if (a->dx == 0 && a->dy == 0 && b->dx == 0 && b->dy ==0) + return 0; + if (a->dx == 0 && a->dy == 0) + return 1; + if (b->dx == 0 && b->dy ==0) + return -1; + + /* Finally, we're looking at two vectors that are either equal or + * that differ by exactly pi. We can identify the "differ by pi" + * case by looking for a change in sign in either dx or dy between + * a and b. + * + * And in these cases, we eliminate the ambiguity by reducing the angle + * of b by an infinitesimally small amount, (that is, 'a' will + * always be considered less than 'b'). + */ + if ((a->dx ^ b->dx) < 0 || (a->dy ^ b->dy) < 0) { + if (a->dx > 0 || (a->dx == 0 && a->dy > 0)) + return -1; + else + return +1; + } + + /* Finally, for identical slopes, we obviously return 0. */ + return 0; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-spans-compositor-private.h b/local/recipes/libs/cairo/source/src/cairo-spans-compositor-private.h new file mode 100644 index 0000000000..0babebd26b --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-spans-compositor-private.h @@ -0,0 +1,111 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_SPANS_COMPOSITOR_PRIVATE_H +#define CAIRO_SPANS_COMPOSITOR_PRIVATE_H + +#include "cairo-compositor-private.h" +#include "cairo-types-private.h" +#include "cairo-spans-private.h" + +CAIRO_BEGIN_DECLS + +typedef struct _cairo_abstract_span_renderer { + cairo_span_renderer_t base; + char data[4096]; +} cairo_abstract_span_renderer_t; + +struct cairo_spans_compositor { + cairo_compositor_t base; + + unsigned int flags; +#define CAIRO_SPANS_COMPOSITOR_HAS_LERP 0x1 + + /* pixel-aligned fast paths */ + cairo_int_status_t (*fill_boxes) (void *surface, + cairo_operator_t op, + const cairo_color_t *color, + cairo_boxes_t *boxes); + + cairo_int_status_t (*draw_image_boxes) (void *surface, + cairo_image_surface_t *image, + cairo_boxes_t *boxes, + int dx, int dy); + + cairo_int_status_t (*copy_boxes) (void *surface, + cairo_surface_t *src, + cairo_boxes_t *boxes, + const cairo_rectangle_int_t *extents, + int dx, int dy); + + cairo_surface_t * (*pattern_to_surface) (cairo_surface_t *dst, + const cairo_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *src_x, int *src_y); + + cairo_int_status_t (*composite_boxes) (void *surface, + cairo_operator_t op, + cairo_surface_t *source, + cairo_surface_t *mask, + int src_x, + int src_y, + int mask_x, + int mask_y, + int dst_x, + int dst_y, + cairo_boxes_t *boxes, + const cairo_rectangle_int_t *extents); + + /* general shape masks using a span renderer */ + cairo_int_status_t (*renderer_init) (cairo_abstract_span_renderer_t *renderer, + const cairo_composite_rectangles_t *extents, + cairo_antialias_t antialias, + cairo_bool_t needs_clip); + + void (*renderer_fini) (cairo_abstract_span_renderer_t *renderer, + cairo_int_status_t status); +}; + +cairo_private void +_cairo_spans_compositor_init (cairo_spans_compositor_t *compositor, + const cairo_compositor_t *delegate); + +CAIRO_END_DECLS + +#endif /* CAIRO_SPANS_COMPOSITOR_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-spans-compositor.c b/local/recipes/libs/cairo/source/src/cairo-spans-compositor.c new file mode 100644 index 0000000000..50c92b25c5 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-spans-compositor.c @@ -0,0 +1,1201 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Joonas Pihlaja + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-compositor-private.h" +#include "cairo-clip-inline.h" +#include "cairo-clip-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-paginated-private.h" +#include "cairo-pattern-inline.h" +#include "cairo-region-private.h" +#include "cairo-recording-surface-inline.h" +#include "cairo-spans-compositor-private.h" +#include "cairo-surface-subsurface-private.h" +#include "cairo-surface-snapshot-private.h" +#include "cairo-surface-observer-private.h" + +typedef struct { + cairo_polygon_t *polygon; + cairo_fill_rule_t fill_rule; + cairo_antialias_t antialias; +} composite_spans_info_t; + +static cairo_int_status_t +composite_polygon (const cairo_spans_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_polygon_t *polygon, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias); + +static cairo_int_status_t +composite_boxes (const cairo_spans_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes); + +static cairo_int_status_t +clip_and_composite_polygon (const cairo_spans_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_polygon_t *polygon, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias); +static cairo_surface_t * +get_clip_surface (const cairo_spans_compositor_t *compositor, + cairo_surface_t *dst, + const cairo_clip_t *clip, + const cairo_rectangle_int_t *extents) +{ + cairo_composite_rectangles_t composite; + cairo_surface_t *surface; + cairo_box_t box; + cairo_polygon_t polygon; + const cairo_clip_path_t *clip_path; + cairo_antialias_t antialias; + cairo_fill_rule_t fill_rule; + cairo_int_status_t status; + + assert (clip->path); + + surface = _cairo_surface_create_scratch (dst, + CAIRO_CONTENT_ALPHA, + extents->width, + extents->height, + CAIRO_COLOR_TRANSPARENT); + + _cairo_box_from_rectangle (&box, extents); + _cairo_polygon_init (&polygon, &box, 1); + + clip_path = clip->path; + status = _cairo_path_fixed_fill_to_polygon (&clip_path->path, + clip_path->tolerance, + &polygon); + if (unlikely (status)) + goto cleanup_polygon; + + polygon.num_limits = 0; + + antialias = clip_path->antialias; + fill_rule = clip_path->fill_rule; + + if (clip->boxes) { + cairo_polygon_t intersect; + cairo_boxes_t tmp; + + _cairo_boxes_init_for_array (&tmp, clip->boxes, clip->num_boxes); + status= _cairo_polygon_init_boxes (&intersect, &tmp); + if (unlikely (status)) + goto cleanup_polygon; + + status = _cairo_polygon_intersect (&polygon, fill_rule, + &intersect, CAIRO_FILL_RULE_WINDING); + _cairo_polygon_fini (&intersect); + + if (unlikely (status)) + goto cleanup_polygon; + + fill_rule = CAIRO_FILL_RULE_WINDING; + } + + polygon.limits = NULL; + polygon.num_limits = 0; + + clip_path = clip_path->prev; + while (clip_path) { + if (clip_path->antialias == antialias) { + cairo_polygon_t next; + + _cairo_polygon_init (&next, NULL, 0); + status = _cairo_path_fixed_fill_to_polygon (&clip_path->path, + clip_path->tolerance, + &next); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = _cairo_polygon_intersect (&polygon, fill_rule, + &next, clip_path->fill_rule); + _cairo_polygon_fini (&next); + if (unlikely (status)) + goto cleanup_polygon; + + fill_rule = CAIRO_FILL_RULE_WINDING; + } + + clip_path = clip_path->prev; + } + + _cairo_polygon_translate (&polygon, -extents->x, -extents->y); + status = _cairo_composite_rectangles_init_for_polygon (&composite, surface, + CAIRO_OPERATOR_ADD, + &_cairo_pattern_white.base, + &polygon, + NULL); + if (unlikely (status)) + goto cleanup_polygon; + + status = composite_polygon (compositor, &composite, + &polygon, fill_rule, antialias); + _cairo_composite_rectangles_fini (&composite); + _cairo_polygon_fini (&polygon); + if (unlikely (status)) + goto error; + + _cairo_polygon_init (&polygon, &box, 1); + + clip_path = clip->path; + antialias = clip_path->antialias == CAIRO_ANTIALIAS_DEFAULT ? CAIRO_ANTIALIAS_NONE : CAIRO_ANTIALIAS_DEFAULT; + clip_path = clip_path->prev; + while (clip_path) { + if (clip_path->antialias == antialias) { + if (polygon.num_edges == 0) { + status = _cairo_path_fixed_fill_to_polygon (&clip_path->path, + clip_path->tolerance, + &polygon); + + fill_rule = clip_path->fill_rule; + polygon.limits = NULL; + polygon.num_limits = 0; + } else { + cairo_polygon_t next; + + _cairo_polygon_init (&next, NULL, 0); + status = _cairo_path_fixed_fill_to_polygon (&clip_path->path, + clip_path->tolerance, + &next); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = _cairo_polygon_intersect (&polygon, fill_rule, + &next, clip_path->fill_rule); + _cairo_polygon_fini (&next); + fill_rule = CAIRO_FILL_RULE_WINDING; + } + if (unlikely (status)) + goto error; + } + + clip_path = clip_path->prev; + } + + if (polygon.num_edges) { + _cairo_polygon_translate (&polygon, -extents->x, -extents->y); + status = _cairo_composite_rectangles_init_for_polygon (&composite, surface, + CAIRO_OPERATOR_IN, + &_cairo_pattern_white.base, + &polygon, + NULL); + if (unlikely (status)) + goto cleanup_polygon; + + status = composite_polygon (compositor, &composite, + &polygon, fill_rule, antialias); + _cairo_composite_rectangles_fini (&composite); + _cairo_polygon_fini (&polygon); + if (unlikely (status)) + goto error; + } + + return surface; + +cleanup_polygon: + _cairo_polygon_fini (&polygon); +error: + cairo_surface_destroy (surface); + return _cairo_int_surface_create_in_error (status); +} + +static cairo_int_status_t +fixup_unbounded_mask (const cairo_spans_compositor_t *compositor, + const cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_composite_rectangles_t composite; + cairo_surface_t *clip; + cairo_int_status_t status; + + TRACE((stderr, "%s\n", __FUNCTION__)); + + clip = get_clip_surface (compositor, extents->surface, extents->clip, + &extents->unbounded); + if (unlikely (clip->status)) { + if ((cairo_int_status_t)clip->status == CAIRO_INT_STATUS_NOTHING_TO_DO) + return CAIRO_STATUS_SUCCESS; + + return clip->status; + } + + status = _cairo_composite_rectangles_init_for_boxes (&composite, + extents->surface, + CAIRO_OPERATOR_CLEAR, + &_cairo_pattern_clear.base, + boxes, + NULL); + if (unlikely (status)) + goto cleanup_clip; + + _cairo_pattern_init_for_surface (&composite.mask_pattern.surface, clip); + composite.mask_pattern.base.filter = CAIRO_FILTER_NEAREST; + composite.mask_pattern.base.extend = CAIRO_EXTEND_NONE; + + status = composite_boxes (compositor, &composite, boxes); + + _cairo_pattern_fini (&composite.mask_pattern.base); + _cairo_composite_rectangles_fini (&composite); + +cleanup_clip: + cairo_surface_destroy (clip); + return status; +} + +static cairo_int_status_t +fixup_unbounded_polygon (const cairo_spans_compositor_t *compositor, + const cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_polygon_t polygon, intersect; + cairo_composite_rectangles_t composite; + cairo_fill_rule_t fill_rule; + cairo_antialias_t antialias; + cairo_int_status_t status; + + TRACE((stderr, "%s\n", __FUNCTION__)); + + /* Can we treat the clip as a regular clear-polygon and use it to fill? */ + status = _cairo_clip_get_polygon (extents->clip, &polygon, + &fill_rule, &antialias); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + status= _cairo_polygon_init_boxes (&intersect, boxes); + if (unlikely (status)) + goto cleanup_polygon; + + status = _cairo_polygon_intersect (&polygon, fill_rule, + &intersect, CAIRO_FILL_RULE_WINDING); + _cairo_polygon_fini (&intersect); + + if (unlikely (status)) + goto cleanup_polygon; + + status = _cairo_composite_rectangles_init_for_polygon (&composite, + extents->surface, + CAIRO_OPERATOR_CLEAR, + &_cairo_pattern_clear.base, + &polygon, + NULL); + if (unlikely (status)) + goto cleanup_polygon; + + status = composite_polygon (compositor, &composite, + &polygon, fill_rule, antialias); + + _cairo_composite_rectangles_fini (&composite); +cleanup_polygon: + _cairo_polygon_fini (&polygon); + + return status; +} + +static cairo_int_status_t +fixup_unbounded_boxes (const cairo_spans_compositor_t *compositor, + const cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_boxes_t tmp, clear; + cairo_box_t box; + cairo_int_status_t status; + + assert (boxes->is_pixel_aligned); + + TRACE ((stderr, "%s\n", __FUNCTION__)); + if (extents->bounded.width == extents->unbounded.width && + extents->bounded.height == extents->unbounded.height) + { + return CAIRO_STATUS_SUCCESS; + } + + /* subtract the drawn boxes from the unbounded area */ + _cairo_boxes_init (&clear); + + box.p1.x = _cairo_fixed_from_int (extents->unbounded.x + extents->unbounded.width); + box.p1.y = _cairo_fixed_from_int (extents->unbounded.y); + box.p2.x = _cairo_fixed_from_int (extents->unbounded.x); + box.p2.y = _cairo_fixed_from_int (extents->unbounded.y + extents->unbounded.height); + + if (boxes->num_boxes) { + _cairo_boxes_init (&tmp); + + status = _cairo_boxes_add (&tmp, CAIRO_ANTIALIAS_DEFAULT, &box); + assert (status == CAIRO_INT_STATUS_SUCCESS); + + tmp.chunks.next = &boxes->chunks; + tmp.num_boxes += boxes->num_boxes; + + status = _cairo_bentley_ottmann_tessellate_boxes (&tmp, + CAIRO_FILL_RULE_WINDING, + &clear); + tmp.chunks.next = NULL; + if (unlikely (status)) + goto error; + } else { + box.p1.x = _cairo_fixed_from_int (extents->unbounded.x); + box.p2.x = _cairo_fixed_from_int (extents->unbounded.x + extents->unbounded.width); + + status = _cairo_boxes_add (&clear, CAIRO_ANTIALIAS_DEFAULT, &box); + assert (status == CAIRO_INT_STATUS_SUCCESS); + } + + /* If we have a clip polygon, we need to intersect with that as well */ + if (extents->clip->path) { + status = fixup_unbounded_polygon (compositor, extents, &clear); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) + status = fixup_unbounded_mask (compositor, extents, &clear); + } else { + /* Otherwise just intersect with the clip boxes */ + if (extents->clip->num_boxes) { + _cairo_boxes_init_for_array (&tmp, + extents->clip->boxes, + extents->clip->num_boxes); + status = _cairo_boxes_intersect (&clear, &tmp, &clear); + if (unlikely (status)) + goto error; + } + + if (clear.is_pixel_aligned) { + status = compositor->fill_boxes (extents->surface, + CAIRO_OPERATOR_CLEAR, + CAIRO_COLOR_TRANSPARENT, + &clear); + } else { + cairo_composite_rectangles_t composite; + + status = _cairo_composite_rectangles_init_for_boxes (&composite, + extents->surface, + CAIRO_OPERATOR_CLEAR, + &_cairo_pattern_clear.base, + &clear, + NULL); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + status = composite_boxes (compositor, &composite, &clear); + _cairo_composite_rectangles_fini (&composite); + } + } + } + +error: + _cairo_boxes_fini (&clear); + return status; +} + +static cairo_surface_t * +unwrap_source (const cairo_pattern_t *pattern) +{ + cairo_rectangle_int_t limit; + + return _cairo_pattern_get_source ((cairo_surface_pattern_t *)pattern, + &limit); +} + +static cairo_bool_t +is_recording_pattern (const cairo_pattern_t *pattern) +{ + cairo_surface_t *surface; + + if (pattern->type != CAIRO_PATTERN_TYPE_SURFACE) + return FALSE; + + surface = ((const cairo_surface_pattern_t *) pattern)->surface; + return _cairo_surface_is_recording (surface); +} + +static cairo_bool_t +recording_pattern_contains_sample (const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *sample) +{ + cairo_recording_surface_t *surface; + + if (! is_recording_pattern (pattern)) + return FALSE; + + if (pattern->extend == CAIRO_EXTEND_NONE) + return TRUE; + + surface = (cairo_recording_surface_t *) unwrap_source (pattern); + if (surface->unbounded) + return TRUE; + + return _cairo_rectangle_contains_rectangle (&surface->extents, sample); +} + +static cairo_bool_t +op_reduces_to_source (const cairo_composite_rectangles_t *extents, + cairo_bool_t no_mask) +{ + if (extents->op == CAIRO_OPERATOR_SOURCE) + return TRUE; + + if (extents->surface->is_clear) + return extents->op == CAIRO_OPERATOR_OVER || extents->op == CAIRO_OPERATOR_ADD; + + if (no_mask && extents->op == CAIRO_OPERATOR_OVER) + return _cairo_pattern_is_opaque (&extents->source_pattern.base, + &extents->source_sample_area); + + return FALSE; +} + +static cairo_status_t +upload_boxes (const cairo_spans_compositor_t *compositor, + const cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_surface_t *dst = extents->surface; + const cairo_surface_pattern_t *source = &extents->source_pattern.surface; + cairo_surface_t *src; + cairo_rectangle_int_t limit; + cairo_int_status_t status; + int tx, ty; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + src = _cairo_pattern_get_source(source, &limit); + if (!(src->type == CAIRO_SURFACE_TYPE_IMAGE || src->type == dst->type)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (! _cairo_matrix_is_integer_translation (&source->base.matrix, &tx, &ty)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Check that the data is entirely within the image */ + if (extents->bounded.x + tx < limit.x || extents->bounded.y + ty < limit.y) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (extents->bounded.x + extents->bounded.width + tx > limit.x + limit.width || + extents->bounded.y + extents->bounded.height + ty > limit.y + limit.height) + return CAIRO_INT_STATUS_UNSUPPORTED; + + tx += limit.x; + ty += limit.y; + + if (src->type == CAIRO_SURFACE_TYPE_IMAGE) + status = compositor->draw_image_boxes (dst, + (cairo_image_surface_t *)src, + boxes, tx, ty); + else + status = compositor->copy_boxes (dst, src, boxes, &extents->bounded, + tx, ty); + + return status; +} + +static cairo_bool_t +_clip_is_region (const cairo_clip_t *clip) +{ + int i; + + if (clip->is_region) + return TRUE; + + if (clip->path) + return FALSE; + + for (i = 0; i < clip->num_boxes; i++) { + const cairo_box_t *b = &clip->boxes[i]; + if (!_cairo_fixed_is_integer (b->p1.x | b->p1.y | b->p2.x | b->p2.y)) + return FALSE; + } + + return TRUE; +} + +static cairo_int_status_t +composite_aligned_boxes (const cairo_spans_compositor_t *compositor, + const cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_surface_t *dst = extents->surface; + cairo_operator_t op = extents->op; + const cairo_pattern_t *source = &extents->source_pattern.base; + cairo_int_status_t status; + cairo_bool_t need_clip_mask = ! _clip_is_region (extents->clip); + cairo_bool_t op_is_source; + cairo_bool_t no_mask; + cairo_bool_t inplace; + + TRACE ((stderr, "%s: need_clip_mask=%d, is-bounded=%d\n", + __FUNCTION__, need_clip_mask, extents->is_bounded)); + if (need_clip_mask && ! extents->is_bounded) { + TRACE ((stderr, "%s: unsupported clip\n", __FUNCTION__)); + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + no_mask = extents->mask_pattern.base.type == CAIRO_PATTERN_TYPE_SOLID && + CAIRO_COLOR_IS_OPAQUE (&extents->mask_pattern.solid.color); + op_is_source = op_reduces_to_source (extents, no_mask); + inplace = ! need_clip_mask && op_is_source && no_mask; + + TRACE ((stderr, "%s: op-is-source=%d [op=%d], no-mask=%d, inplace=%d\n", + __FUNCTION__, op_is_source, op, no_mask, inplace)); + + if (op == CAIRO_OPERATOR_SOURCE && (need_clip_mask || ! no_mask)) { + /* SOURCE with a mask is actually a LERP in cairo semantics */ + if ((compositor->flags & CAIRO_SPANS_COMPOSITOR_HAS_LERP) == 0) { + TRACE ((stderr, "%s: unsupported lerp\n", __FUNCTION__)); + return CAIRO_INT_STATUS_UNSUPPORTED; + } + } + + /* Are we just copying a recording surface? */ + if (inplace && + recording_pattern_contains_sample (&extents->source_pattern.base, + &extents->source_sample_area)) + { + cairo_clip_t *recording_clip; + const cairo_pattern_t *source = &extents->source_pattern.base; + const cairo_matrix_t *m; + cairo_matrix_t matrix; + + /* XXX could also do tiling repeat modes... */ + + /* first clear the area about to be overwritten */ + if (! dst->is_clear) { + status = compositor->fill_boxes (dst, + CAIRO_OPERATOR_CLEAR, + CAIRO_COLOR_TRANSPARENT, + boxes); + if (unlikely (status)) + return status; + + dst->is_clear = TRUE; + } + + m = &source->matrix; + if (_cairo_surface_has_device_transform (dst)) { + cairo_matrix_multiply (&matrix, + &source->matrix, + &dst->device_transform); + m = &matrix; + } + + recording_clip = _cairo_clip_from_boxes (boxes); + status = _cairo_recording_surface_replay_with_clip (unwrap_source (source), + m, dst, recording_clip); + _cairo_clip_destroy (recording_clip); + + return status; + } + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (! need_clip_mask && no_mask && source->type == CAIRO_PATTERN_TYPE_SOLID) { + const cairo_color_t *color; + + color = &((cairo_solid_pattern_t *) source)->color; + if (op_is_source) + op = CAIRO_OPERATOR_SOURCE; + status = compositor->fill_boxes (dst, op, color, boxes); + } else if (inplace && source->type == CAIRO_PATTERN_TYPE_SURFACE) { + status = upload_boxes (compositor, extents, boxes); + } + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + cairo_surface_t *src; + cairo_surface_t *mask = NULL; + int src_x, src_y; + int mask_x = 0, mask_y = 0; + + /* All typical cases will have been resolved before now... */ + if (need_clip_mask) { + mask = get_clip_surface (compositor, dst, extents->clip, + &extents->bounded); + if (unlikely (mask->status)) + return mask->status; + + mask_x = -extents->bounded.x; + mask_y = -extents->bounded.y; + } + + /* XXX but this is still ugly */ + if (! no_mask) { + src = compositor->pattern_to_surface (dst, + &extents->mask_pattern.base, + TRUE, + &extents->bounded, + &extents->mask_sample_area, + &src_x, &src_y); + if (unlikely (src->status)) { + cairo_surface_destroy (mask); + return src->status; + } + + if (mask != NULL) { + status = compositor->composite_boxes (mask, CAIRO_OPERATOR_IN, + src, NULL, + src_x, src_y, + 0, 0, + mask_x, mask_y, + boxes, &extents->bounded); + + cairo_surface_destroy (src); + } else { + mask = src; + mask_x = src_x; + mask_y = src_y; + } + } + + src = compositor->pattern_to_surface (dst, source, FALSE, + &extents->bounded, + &extents->source_sample_area, + &src_x, &src_y); + if (likely (src->status == CAIRO_STATUS_SUCCESS)) { + status = compositor->composite_boxes (dst, op, src, mask, + src_x, src_y, + mask_x, mask_y, + 0, 0, + boxes, &extents->bounded); + cairo_surface_destroy (src); + } else + status = src->status; + + cairo_surface_destroy (mask); + } + + if (status == CAIRO_INT_STATUS_SUCCESS && ! extents->is_bounded) + status = fixup_unbounded_boxes (compositor, extents, boxes); + + return status; +} + +static cairo_bool_t +composite_needs_clip (const cairo_composite_rectangles_t *composite, + const cairo_box_t *extents) +{ + return !_cairo_clip_contains_box (composite->clip, extents); +} + +static cairo_int_status_t +composite_boxes (const cairo_spans_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_abstract_span_renderer_t renderer; + cairo_rectangular_scan_converter_t converter; + const struct _cairo_boxes_chunk *chunk; + cairo_int_status_t status; + cairo_box_t box; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + _cairo_box_from_rectangle (&box, &extents->unbounded); + if (composite_needs_clip (extents, &box)) { + TRACE ((stderr, "%s: unsupported clip\n", __FUNCTION__)); + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + _cairo_rectangular_scan_converter_init (&converter, &extents->unbounded); + for (chunk = &boxes->chunks; chunk != NULL; chunk = chunk->next) { + const cairo_box_t *box = chunk->base; + int i; + + for (i = 0; i < chunk->count; i++) { + status = _cairo_rectangular_scan_converter_add_box (&converter, &box[i], 1); + if (unlikely (status)) + goto cleanup_converter; + } + } + + status = compositor->renderer_init (&renderer, extents, + CAIRO_ANTIALIAS_DEFAULT, FALSE); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = converter.base.generate (&converter.base, &renderer.base); + compositor->renderer_fini (&renderer, status); + +cleanup_converter: + converter.base.destroy (&converter.base); + return status; +} + +static cairo_int_status_t +composite_polygon (const cairo_spans_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_polygon_t *polygon, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias) +{ + cairo_abstract_span_renderer_t renderer; + cairo_scan_converter_t *converter; + cairo_bool_t needs_clip; + cairo_int_status_t status; + + if (extents->is_bounded) + needs_clip = extents->clip->path != NULL; + else + needs_clip = !_clip_is_region (extents->clip) || extents->clip->num_boxes > 1; + TRACE ((stderr, "%s - needs_clip=%d\n", __FUNCTION__, needs_clip)); + if (needs_clip) { + TRACE ((stderr, "%s: unsupported clip\n", __FUNCTION__)); + return CAIRO_INT_STATUS_UNSUPPORTED; + converter = _cairo_clip_tor_scan_converter_create (extents->clip, + polygon, + fill_rule, antialias); + } else { + const cairo_rectangle_int_t *r = &extents->unbounded; + + if (antialias == CAIRO_ANTIALIAS_FAST) { + converter = _cairo_tor22_scan_converter_create (r->x, r->y, + r->x + r->width, + r->y + r->height, + fill_rule, antialias); + status = _cairo_tor22_scan_converter_add_polygon (converter, polygon); + } else if (antialias == CAIRO_ANTIALIAS_NONE) { + converter = _cairo_mono_scan_converter_create (r->x, r->y, + r->x + r->width, + r->y + r->height, + fill_rule); + status = _cairo_mono_scan_converter_add_polygon (converter, polygon); + } else { + converter = _cairo_tor_scan_converter_create (r->x, r->y, + r->x + r->width, + r->y + r->height, + fill_rule, antialias); + status = _cairo_tor_scan_converter_add_polygon (converter, polygon); + } + } + if (unlikely (status)) + goto cleanup_converter; + + status = compositor->renderer_init (&renderer, extents, + antialias, needs_clip); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = converter->generate (converter, &renderer.base); + compositor->renderer_fini (&renderer, status); + +cleanup_converter: + converter->destroy (converter); + return status; +} + +static cairo_int_status_t +trim_extents_to_boxes (cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_box_t box; + + _cairo_boxes_extents (boxes, &box); + return _cairo_composite_rectangles_intersect_mask_extents (extents, &box); +} + +static cairo_int_status_t +trim_extents_to_polygon (cairo_composite_rectangles_t *extents, + cairo_polygon_t *polygon) +{ + return _cairo_composite_rectangles_intersect_mask_extents (extents, + &polygon->extents); +} + +static cairo_int_status_t +clip_and_composite_boxes (const cairo_spans_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_int_status_t status; + cairo_polygon_t polygon; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + status = trim_extents_to_boxes (extents, boxes); + if (unlikely (status)) + return status; + + if (boxes->num_boxes == 0) { + if (extents->is_bounded) + return CAIRO_STATUS_SUCCESS; + + return fixup_unbounded_boxes (compositor, extents, boxes); + } + + /* Can we reduce drawing through a clip-mask to simply drawing the clip? */ + if (extents->clip->path != NULL && extents->is_bounded) { + cairo_polygon_t polygon; + cairo_fill_rule_t fill_rule; + cairo_antialias_t antialias; + cairo_clip_t *clip; + + clip = _cairo_clip_copy (extents->clip); + clip = _cairo_clip_intersect_boxes (clip, boxes); + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_INT_STATUS_NOTHING_TO_DO; + + status = _cairo_clip_get_polygon (clip, &polygon, + &fill_rule, &antialias); + _cairo_clip_path_destroy (clip->path); + clip->path = NULL; + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + cairo_clip_t *saved_clip = extents->clip; + extents->clip = clip; + + status = clip_and_composite_polygon (compositor, extents, &polygon, + fill_rule, antialias); + + clip = extents->clip; + extents->clip = saved_clip; + + _cairo_polygon_fini (&polygon); + } + _cairo_clip_destroy (clip); + + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + } + + if (boxes->is_pixel_aligned) { + status = composite_aligned_boxes (compositor, extents, boxes); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + } + + status = composite_boxes (compositor, extents, boxes); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + status = _cairo_polygon_init_boxes (&polygon, boxes); + if (unlikely (status)) + return status; + + status = composite_polygon (compositor, extents, &polygon, + CAIRO_FILL_RULE_WINDING, + CAIRO_ANTIALIAS_DEFAULT); + _cairo_polygon_fini (&polygon); + + return status; +} + +static cairo_int_status_t +clip_and_composite_polygon (const cairo_spans_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_polygon_t *polygon, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias) +{ + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + /* XXX simply uses polygon limits.point extemities, tessellation? */ + status = trim_extents_to_polygon (extents, polygon); + if (unlikely (status)) + return status; + + if (_cairo_polygon_is_empty (polygon)) { + cairo_boxes_t boxes; + + if (extents->is_bounded) + return CAIRO_STATUS_SUCCESS; + + _cairo_boxes_init (&boxes); + extents->bounded.width = extents->bounded.height = 0; + return fixup_unbounded_boxes (compositor, extents, &boxes); + } + + if (extents->is_bounded && extents->clip->path) { + cairo_polygon_t clipper; + cairo_antialias_t clip_antialias; + cairo_fill_rule_t clip_fill_rule; + + TRACE((stderr, "%s - combining shape with clip polygon\n", + __FUNCTION__)); + + status = _cairo_clip_get_polygon (extents->clip, + &clipper, + &clip_fill_rule, + &clip_antialias); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + cairo_clip_t *old_clip; + + if (clip_antialias == antialias) { + status = _cairo_polygon_intersect (polygon, fill_rule, + &clipper, clip_fill_rule); + _cairo_polygon_fini (&clipper); + if (unlikely (status)) + return status; + + old_clip = extents->clip; + extents->clip = _cairo_clip_copy_region (extents->clip); + _cairo_clip_destroy (old_clip); + + status = trim_extents_to_polygon (extents, polygon); + if (unlikely (status)) + return status; + + fill_rule = CAIRO_FILL_RULE_WINDING; + } else { + _cairo_polygon_fini (&clipper); + } + } + } + + return composite_polygon (compositor, extents, + polygon, fill_rule, antialias); +} + +/* high-level compositor interface */ + +static cairo_int_status_t +_cairo_spans_compositor_paint (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents) +{ + const cairo_spans_compositor_t *compositor = (cairo_spans_compositor_t*)_compositor; + cairo_boxes_t boxes; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + _cairo_clip_steal_boxes (extents->clip, &boxes); + status = clip_and_composite_boxes (compositor, extents, &boxes); + _cairo_clip_unsteal_boxes (extents->clip, &boxes); + + return status; +} + +static cairo_int_status_t +_cairo_spans_compositor_mask (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents) +{ + const cairo_spans_compositor_t *compositor = (cairo_spans_compositor_t*)_compositor; + cairo_int_status_t status; + cairo_boxes_t boxes; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + _cairo_clip_steal_boxes (extents->clip, &boxes); + status = clip_and_composite_boxes (compositor, extents, &boxes); + _cairo_clip_unsteal_boxes (extents->clip, &boxes); + + return status; +} + +static cairo_int_status_t +_cairo_spans_compositor_stroke (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias) +{ + const cairo_spans_compositor_t *compositor = (cairo_spans_compositor_t*)_compositor; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + TRACE_ (_cairo_debug_print_path (stderr, path)); + TRACE_ (_cairo_debug_print_clip (stderr, extents->clip)); + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (_cairo_path_fixed_stroke_is_rectilinear (path)) { + cairo_boxes_t boxes; + + _cairo_boxes_init (&boxes); + if (! _cairo_clip_contains_rectangle (extents->clip, &extents->mask)) + _cairo_boxes_limit (&boxes, + extents->clip->boxes, + extents->clip->num_boxes); + + status = _cairo_path_fixed_stroke_rectilinear_to_boxes (path, + style, + ctm, + antialias, + &boxes); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = clip_and_composite_boxes (compositor, extents, &boxes); + _cairo_boxes_fini (&boxes); + } + + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + cairo_polygon_t polygon; + cairo_box_t limits; + cairo_fill_rule_t fill_rule = CAIRO_FILL_RULE_WINDING; + + if (! _cairo_rectangle_contains_rectangle (&extents->unbounded, + &extents->mask)) + { + if (extents->clip->num_boxes == 1) { + _cairo_polygon_init (&polygon, extents->clip->boxes, 1); + } else { + _cairo_box_from_rectangle (&limits, &extents->unbounded); + _cairo_polygon_init (&polygon, &limits, 1); + } + } + else + { + _cairo_polygon_init (&polygon, NULL, 0); + } + status = _cairo_path_fixed_stroke_to_polygon (path, + style, + ctm, ctm_inverse, + tolerance, + &polygon); + TRACE_ (_cairo_debug_print_polygon (stderr, &polygon)); + polygon.num_limits = 0; + + if (status == CAIRO_INT_STATUS_SUCCESS && extents->clip->num_boxes > 1) { + status = _cairo_polygon_intersect_with_boxes (&polygon, &fill_rule, + extents->clip->boxes, + extents->clip->num_boxes); + } + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + cairo_clip_t *saved_clip = extents->clip; + + if (extents->is_bounded) { + extents->clip = _cairo_clip_copy_path (extents->clip); + extents->clip = _cairo_clip_intersect_box(extents->clip, + &polygon.extents); + } + + status = clip_and_composite_polygon (compositor, extents, &polygon, + fill_rule, antialias); + + if (extents->is_bounded) { + _cairo_clip_destroy (extents->clip); + extents->clip = saved_clip; + } + } + _cairo_polygon_fini (&polygon); + } + + return status; +} + +static cairo_int_status_t +_cairo_spans_compositor_fill (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + const cairo_spans_compositor_t *compositor = (cairo_spans_compositor_t*)_compositor; + cairo_int_status_t status; + + TRACE((stderr, "%s op=%d, antialias=%d\n", __FUNCTION__, extents->op, antialias)); + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (_cairo_path_fixed_fill_is_rectilinear (path)) { + cairo_boxes_t boxes; + + TRACE((stderr, "%s - rectilinear\n", __FUNCTION__)); + + _cairo_boxes_init (&boxes); + if (! _cairo_clip_contains_rectangle (extents->clip, &extents->mask)) + _cairo_boxes_limit (&boxes, + extents->clip->boxes, + extents->clip->num_boxes); + status = _cairo_path_fixed_fill_rectilinear_to_boxes (path, + fill_rule, + antialias, + &boxes); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = clip_and_composite_boxes (compositor, extents, &boxes); + _cairo_boxes_fini (&boxes); + } + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + cairo_polygon_t polygon; + cairo_box_t limits; + + TRACE((stderr, "%s - polygon\n", __FUNCTION__)); + + if (! _cairo_rectangle_contains_rectangle (&extents->unbounded, + &extents->mask)) + { + TRACE((stderr, "%s - clipping to bounds\n", __FUNCTION__)); + if (extents->clip->num_boxes == 1) { + _cairo_polygon_init (&polygon, extents->clip->boxes, 1); + } else { + _cairo_box_from_rectangle (&limits, &extents->unbounded); + _cairo_polygon_init (&polygon, &limits, 1); + } + } + else + { + _cairo_polygon_init (&polygon, NULL, 0); + } + + status = _cairo_path_fixed_fill_to_polygon (path, tolerance, &polygon); + TRACE_ (_cairo_debug_print_polygon (stderr, &polygon)); + polygon.num_limits = 0; + + if (status == CAIRO_INT_STATUS_SUCCESS && extents->clip->num_boxes > 1) { + TRACE((stderr, "%s - polygon intersect with %d clip boxes\n", + __FUNCTION__, extents->clip->num_boxes)); + status = _cairo_polygon_intersect_with_boxes (&polygon, &fill_rule, + extents->clip->boxes, + extents->clip->num_boxes); + } + TRACE_ (_cairo_debug_print_polygon (stderr, &polygon)); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + cairo_clip_t *saved_clip = extents->clip; + + if (extents->is_bounded) { + TRACE((stderr, "%s - polygon discard clip boxes\n", + __FUNCTION__)); + extents->clip = _cairo_clip_copy_path (extents->clip); + extents->clip = _cairo_clip_intersect_box(extents->clip, + &polygon.extents); + } + + status = clip_and_composite_polygon (compositor, extents, &polygon, + fill_rule, antialias); + + if (extents->is_bounded) { + _cairo_clip_destroy (extents->clip); + extents->clip = saved_clip; + } + } + _cairo_polygon_fini (&polygon); + + TRACE((stderr, "%s - polygon status=%d\n", __FUNCTION__, status)); + } + + return status; +} + +void +_cairo_spans_compositor_init (cairo_spans_compositor_t *compositor, + const cairo_compositor_t *delegate) +{ + compositor->base.delegate = delegate; + + compositor->base.paint = _cairo_spans_compositor_paint; + compositor->base.mask = _cairo_spans_compositor_mask; + compositor->base.fill = _cairo_spans_compositor_fill; + compositor->base.stroke = _cairo_spans_compositor_stroke; + compositor->base.glyphs = NULL; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-spans-private.h b/local/recipes/libs/cairo/source/src/cairo-spans-private.h new file mode 100644 index 0000000000..653183fb1c --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-spans-private.h @@ -0,0 +1,210 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright (c) 2008 M Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#ifndef CAIRO_SPANS_PRIVATE_H +#define CAIRO_SPANS_PRIVATE_H +#include "cairo-types-private.h" +#include "cairo-compiler-private.h" + +/* Number of bits of precision used for alpha. */ +#define CAIRO_SPANS_UNIT_COVERAGE_BITS 8 +#define CAIRO_SPANS_UNIT_COVERAGE ((1 << CAIRO_SPANS_UNIT_COVERAGE_BITS)-1) + +/* A structure representing an open-ended horizontal span of constant + * pixel coverage. */ +typedef struct _cairo_half_open_span { + int32_t x; /* The inclusive x-coordinate of the start of the span. */ + uint8_t coverage; /* The pixel coverage for the pixels to the right. */ + uint8_t inverse; /* between regular mask and clip */ +} cairo_half_open_span_t; + +/* Span renderer interface. Instances of renderers are provided by + * surfaces if they want to composite spans instead of trapezoids. */ +typedef struct _cairo_span_renderer cairo_span_renderer_t; +struct _cairo_span_renderer { + /* Private status variable. */ + cairo_status_t status; + + /* Called to destroy the renderer. */ + cairo_destroy_func_t destroy; + + /* Render the spans on row y of the destination by whatever compositing + * method is required. */ + cairo_status_t + (*render_rows) (void *abstract_renderer, + int y, int height, + const cairo_half_open_span_t *coverages, + unsigned num_coverages); + + /* Called after all rows have been rendered to perform whatever + * final rendering step is required. This function is called just + * once before the renderer is destroyed. */ + cairo_status_t (*finish) (void *abstract_renderer); +}; + +/* Scan converter interface. */ +typedef struct _cairo_scan_converter cairo_scan_converter_t; +struct _cairo_scan_converter { + /* Destroy this scan converter. */ + cairo_destroy_func_t destroy; + + /* Generates coverage spans for rows for the added edges and calls + * the renderer function for each row. After generating spans the + * only valid thing to do with the converter is to destroy it. */ + cairo_status_t (*generate) (void *abstract_converter, + cairo_span_renderer_t *renderer); + + /* Private status. Read with _cairo_scan_converter_status(). */ + cairo_status_t status; +}; + +/* Scan converter constructors. */ + +cairo_private cairo_scan_converter_t * +_cairo_tor_scan_converter_create (int xmin, + int ymin, + int xmax, + int ymax, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias); +cairo_private cairo_status_t +_cairo_tor_scan_converter_add_polygon (void *converter, + const cairo_polygon_t *polygon); + +cairo_private cairo_scan_converter_t * +_cairo_tor22_scan_converter_create (int xmin, + int ymin, + int xmax, + int ymax, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias); +cairo_private cairo_status_t +_cairo_tor22_scan_converter_add_polygon (void *converter, + const cairo_polygon_t *polygon); + +cairo_private cairo_scan_converter_t * +_cairo_mono_scan_converter_create (int xmin, + int ymin, + int xmax, + int ymax, + cairo_fill_rule_t fill_rule); +cairo_private cairo_status_t +_cairo_mono_scan_converter_add_polygon (void *converter, + const cairo_polygon_t *polygon); + +cairo_private cairo_scan_converter_t * +_cairo_clip_tor_scan_converter_create (cairo_clip_t *clip, + cairo_polygon_t *polygon, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias); + +typedef struct _cairo_rectangular_scan_converter { + cairo_scan_converter_t base; + + cairo_box_t extents; + + struct _cairo_rectangular_scan_converter_chunk { + struct _cairo_rectangular_scan_converter_chunk *next; + void *base; + int count; + int size; + } chunks, *tail; + char buf[CAIRO_STACK_BUFFER_SIZE]; + int num_rectangles; +} cairo_rectangular_scan_converter_t; + +cairo_private void +_cairo_rectangular_scan_converter_init (cairo_rectangular_scan_converter_t *self, + const cairo_rectangle_int_t *extents); + +cairo_private cairo_status_t +_cairo_rectangular_scan_converter_add_box (cairo_rectangular_scan_converter_t *self, + const cairo_box_t *box, + int dir); + +typedef struct _cairo_botor_scan_converter { + cairo_scan_converter_t base; + + cairo_box_t extents; + cairo_fill_rule_t fill_rule; + + int xmin, xmax; + + struct _cairo_botor_scan_converter_chunk { + struct _cairo_botor_scan_converter_chunk *next; + void *base; + int count; + int size; + } chunks, *tail; + char buf[CAIRO_STACK_BUFFER_SIZE]; + int num_edges; +} cairo_botor_scan_converter_t; + +cairo_private void +_cairo_botor_scan_converter_init (cairo_botor_scan_converter_t *self, + const cairo_box_t *extents, + cairo_fill_rule_t fill_rule); + +cairo_private cairo_status_t +_cairo_botor_scan_converter_add_polygon (cairo_botor_scan_converter_t *converter, + const cairo_polygon_t *polygon); + +/* cairo-spans.c: */ + +cairo_private cairo_scan_converter_t * +_cairo_scan_converter_create_in_error (cairo_status_t error); + +cairo_private cairo_status_t +_cairo_scan_converter_status (void *abstract_converter); + +cairo_private cairo_status_t +_cairo_scan_converter_set_error (void *abstract_converter, + cairo_status_t error); + +cairo_private cairo_span_renderer_t * +_cairo_span_renderer_create_in_error (cairo_status_t error); + +cairo_private cairo_status_t +_cairo_span_renderer_status (void *abstract_renderer); + +/* Set the renderer into an error state. This sets all the method + * pointers except ->destroy() of the renderer to no-op + * implementations that just return the error status. */ +cairo_private cairo_status_t +_cairo_span_renderer_set_error (void *abstract_renderer, + cairo_status_t error); + +cairo_private cairo_status_t +_cairo_surface_composite_polygon (cairo_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *pattern, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias, + const cairo_composite_rectangles_t *rects, + cairo_polygon_t *polygon, + cairo_region_t *clip_region); + +#endif /* CAIRO_SPANS_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-spans.c b/local/recipes/libs/cairo/source/src/cairo-spans.c new file mode 100644 index 0000000000..711c0c1068 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-spans.c @@ -0,0 +1,262 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright (c) 2008 M Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "cairoint.h" + +#include "cairo-composite-rectangles-private.h" +#include "cairo-clip-private.h" +#include "cairo-error-private.h" +#include "cairo-fixed-private.h" +#include "cairo-types-private.h" + +static void +_cairo_nil_destroy (void *abstract) +{ + (void) abstract; +} + +static cairo_status_t +_cairo_nil_scan_converter_generate (void *abstract_converter, + cairo_span_renderer_t *renderer) +{ + (void) abstract_converter; + (void) renderer; + return _cairo_scan_converter_status (abstract_converter); +} + +cairo_status_t +_cairo_scan_converter_status (void *abstract_converter) +{ + cairo_scan_converter_t *converter = abstract_converter; + return converter->status; +} + +cairo_status_t +_cairo_scan_converter_set_error (void *abstract_converter, + cairo_status_t error) +{ + cairo_scan_converter_t *converter = abstract_converter; + if (error == CAIRO_STATUS_SUCCESS) + ASSERT_NOT_REACHED; + if (converter->status == CAIRO_STATUS_SUCCESS) { + converter->generate = _cairo_nil_scan_converter_generate; + converter->status = error; + } + return converter->status; +} + +static void +_cairo_nil_scan_converter_init (cairo_scan_converter_t *converter, + cairo_status_t status) +{ + converter->destroy = _cairo_nil_destroy; + converter->status = CAIRO_STATUS_SUCCESS; + status = _cairo_scan_converter_set_error (converter, status); +} + +cairo_scan_converter_t * +_cairo_scan_converter_create_in_error (cairo_status_t status) +{ +#define RETURN_NIL {\ + static cairo_scan_converter_t nil;\ + _cairo_nil_scan_converter_init (&nil, status);\ + return &nil;\ + } + switch (status) { + case CAIRO_STATUS_SUCCESS: + case CAIRO_STATUS_LAST_STATUS: + ASSERT_NOT_REACHED; + break; + case CAIRO_STATUS_INVALID_RESTORE: RETURN_NIL; + case CAIRO_STATUS_INVALID_POP_GROUP: RETURN_NIL; + case CAIRO_STATUS_NO_CURRENT_POINT: RETURN_NIL; + case CAIRO_STATUS_INVALID_MATRIX: RETURN_NIL; + case CAIRO_STATUS_INVALID_STATUS: RETURN_NIL; + case CAIRO_STATUS_NULL_POINTER: RETURN_NIL; + case CAIRO_STATUS_INVALID_STRING: RETURN_NIL; + case CAIRO_STATUS_INVALID_PATH_DATA: RETURN_NIL; + case CAIRO_STATUS_READ_ERROR: RETURN_NIL; + case CAIRO_STATUS_WRITE_ERROR: RETURN_NIL; + case CAIRO_STATUS_SURFACE_FINISHED: RETURN_NIL; + case CAIRO_STATUS_SURFACE_TYPE_MISMATCH: RETURN_NIL; + case CAIRO_STATUS_PATTERN_TYPE_MISMATCH: RETURN_NIL; + case CAIRO_STATUS_INVALID_CONTENT: RETURN_NIL; + case CAIRO_STATUS_INVALID_FORMAT: RETURN_NIL; + case CAIRO_STATUS_INVALID_VISUAL: RETURN_NIL; + case CAIRO_STATUS_FILE_NOT_FOUND: RETURN_NIL; + case CAIRO_STATUS_INVALID_DASH: RETURN_NIL; + case CAIRO_STATUS_INVALID_DSC_COMMENT: RETURN_NIL; + case CAIRO_STATUS_INVALID_INDEX: RETURN_NIL; + case CAIRO_STATUS_CLIP_NOT_REPRESENTABLE: RETURN_NIL; + case CAIRO_STATUS_TEMP_FILE_ERROR: RETURN_NIL; + case CAIRO_STATUS_INVALID_STRIDE: RETURN_NIL; + case CAIRO_STATUS_FONT_TYPE_MISMATCH: RETURN_NIL; + case CAIRO_STATUS_USER_FONT_IMMUTABLE: RETURN_NIL; + case CAIRO_STATUS_USER_FONT_ERROR: RETURN_NIL; + case CAIRO_STATUS_NEGATIVE_COUNT: RETURN_NIL; + case CAIRO_STATUS_INVALID_CLUSTERS: RETURN_NIL; + case CAIRO_STATUS_INVALID_SLANT: RETURN_NIL; + case CAIRO_STATUS_INVALID_WEIGHT: RETURN_NIL; + case CAIRO_STATUS_NO_MEMORY: RETURN_NIL; + case CAIRO_STATUS_INVALID_SIZE: RETURN_NIL; + case CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED: RETURN_NIL; + case CAIRO_STATUS_DEVICE_TYPE_MISMATCH: RETURN_NIL; + case CAIRO_STATUS_DEVICE_ERROR: RETURN_NIL; + case CAIRO_STATUS_INVALID_MESH_CONSTRUCTION: RETURN_NIL; + case CAIRO_STATUS_DEVICE_FINISHED: RETURN_NIL; + case CAIRO_STATUS_JBIG2_GLOBAL_MISSING: + case CAIRO_STATUS_PNG_ERROR: + case CAIRO_STATUS_FREETYPE_ERROR: + case CAIRO_STATUS_WIN32_GDI_ERROR: + case CAIRO_STATUS_TAG_ERROR: + case CAIRO_STATUS_DWRITE_ERROR: + case CAIRO_STATUS_SVG_FONT_ERROR: + default: + break; + } + status = CAIRO_STATUS_NO_MEMORY; + RETURN_NIL; +#undef RETURN_NIL +} + +static cairo_status_t +_cairo_nil_span_renderer_render_rows ( + void *abstract_renderer, + int y, + int height, + const cairo_half_open_span_t *coverages, + unsigned num_coverages) +{ + (void) y; + (void) height; + (void) coverages; + (void) num_coverages; + return _cairo_span_renderer_status (abstract_renderer); +} + +static cairo_status_t +_cairo_nil_span_renderer_finish (void *abstract_renderer) +{ + return _cairo_span_renderer_status (abstract_renderer); +} + +cairo_status_t +_cairo_span_renderer_status (void *abstract_renderer) +{ + cairo_span_renderer_t *renderer = abstract_renderer; + return renderer->status; +} + +cairo_status_t +_cairo_span_renderer_set_error ( + void *abstract_renderer, + cairo_status_t error) +{ + cairo_span_renderer_t *renderer = abstract_renderer; + if (error == CAIRO_STATUS_SUCCESS) { + ASSERT_NOT_REACHED; + } + if (renderer->status == CAIRO_STATUS_SUCCESS) { + renderer->render_rows = _cairo_nil_span_renderer_render_rows; + renderer->finish = _cairo_nil_span_renderer_finish; + renderer->status = error; + } + return renderer->status; +} + +static void +_cairo_nil_span_renderer_init (cairo_span_renderer_t *renderer, + cairo_status_t status) +{ + renderer->destroy = _cairo_nil_destroy; + renderer->status = CAIRO_STATUS_SUCCESS; + status = _cairo_span_renderer_set_error (renderer, status); +} + +cairo_span_renderer_t * +_cairo_span_renderer_create_in_error (cairo_status_t status) +{ +#define RETURN_NIL {\ + static cairo_span_renderer_t nil;\ + _cairo_nil_span_renderer_init (&nil, status);\ + return &nil;\ + } + switch (status) { + case CAIRO_STATUS_SUCCESS: + case CAIRO_STATUS_LAST_STATUS: + ASSERT_NOT_REACHED; + break; + case CAIRO_STATUS_INVALID_RESTORE: RETURN_NIL; + case CAIRO_STATUS_INVALID_POP_GROUP: RETURN_NIL; + case CAIRO_STATUS_NO_CURRENT_POINT: RETURN_NIL; + case CAIRO_STATUS_INVALID_MATRIX: RETURN_NIL; + case CAIRO_STATUS_INVALID_STATUS: RETURN_NIL; + case CAIRO_STATUS_NULL_POINTER: RETURN_NIL; + case CAIRO_STATUS_INVALID_STRING: RETURN_NIL; + case CAIRO_STATUS_INVALID_PATH_DATA: RETURN_NIL; + case CAIRO_STATUS_READ_ERROR: RETURN_NIL; + case CAIRO_STATUS_WRITE_ERROR: RETURN_NIL; + case CAIRO_STATUS_SURFACE_FINISHED: RETURN_NIL; + case CAIRO_STATUS_SURFACE_TYPE_MISMATCH: RETURN_NIL; + case CAIRO_STATUS_PATTERN_TYPE_MISMATCH: RETURN_NIL; + case CAIRO_STATUS_INVALID_CONTENT: RETURN_NIL; + case CAIRO_STATUS_INVALID_FORMAT: RETURN_NIL; + case CAIRO_STATUS_INVALID_VISUAL: RETURN_NIL; + case CAIRO_STATUS_FILE_NOT_FOUND: RETURN_NIL; + case CAIRO_STATUS_INVALID_DASH: RETURN_NIL; + case CAIRO_STATUS_INVALID_DSC_COMMENT: RETURN_NIL; + case CAIRO_STATUS_INVALID_INDEX: RETURN_NIL; + case CAIRO_STATUS_CLIP_NOT_REPRESENTABLE: RETURN_NIL; + case CAIRO_STATUS_TEMP_FILE_ERROR: RETURN_NIL; + case CAIRO_STATUS_INVALID_STRIDE: RETURN_NIL; + case CAIRO_STATUS_FONT_TYPE_MISMATCH: RETURN_NIL; + case CAIRO_STATUS_USER_FONT_IMMUTABLE: RETURN_NIL; + case CAIRO_STATUS_USER_FONT_ERROR: RETURN_NIL; + case CAIRO_STATUS_NEGATIVE_COUNT: RETURN_NIL; + case CAIRO_STATUS_INVALID_CLUSTERS: RETURN_NIL; + case CAIRO_STATUS_INVALID_SLANT: RETURN_NIL; + case CAIRO_STATUS_INVALID_WEIGHT: RETURN_NIL; + case CAIRO_STATUS_NO_MEMORY: RETURN_NIL; + case CAIRO_STATUS_INVALID_SIZE: RETURN_NIL; + case CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED: RETURN_NIL; + case CAIRO_STATUS_DEVICE_TYPE_MISMATCH: RETURN_NIL; + case CAIRO_STATUS_DEVICE_ERROR: RETURN_NIL; + case CAIRO_STATUS_INVALID_MESH_CONSTRUCTION: RETURN_NIL; + case CAIRO_STATUS_DEVICE_FINISHED: RETURN_NIL; + case CAIRO_STATUS_JBIG2_GLOBAL_MISSING: RETURN_NIL; + case CAIRO_STATUS_PNG_ERROR: RETURN_NIL; + case CAIRO_STATUS_FREETYPE_ERROR: RETURN_NIL; + case CAIRO_STATUS_WIN32_GDI_ERROR: RETURN_NIL; + case CAIRO_STATUS_TAG_ERROR: RETURN_NIL; + case CAIRO_STATUS_DWRITE_ERROR: RETURN_NIL; + case CAIRO_STATUS_SVG_FONT_ERROR: RETURN_NIL; + default: + break; + } + status = CAIRO_STATUS_NO_MEMORY; + RETURN_NIL; +#undef RETURN_NIL +} diff --git a/local/recipes/libs/cairo/source/src/cairo-spline.c b/local/recipes/libs/cairo/source/src/cairo-spline.c new file mode 100644 index 0000000000..6f50a637a9 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-spline.c @@ -0,0 +1,424 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" + +#include "cairo-box-inline.h" +#include "cairo-slope-private.h" + +cairo_bool_t +_cairo_spline_intersects (const cairo_point_t *a, + const cairo_point_t *b, + const cairo_point_t *c, + const cairo_point_t *d, + const cairo_box_t *box) +{ + cairo_box_t bounds; + + if (_cairo_box_contains_point (box, a) || + _cairo_box_contains_point (box, b) || + _cairo_box_contains_point (box, c) || + _cairo_box_contains_point (box, d)) + { + return TRUE; + } + + bounds.p2 = bounds.p1 = *a; + _cairo_box_add_point (&bounds, b); + _cairo_box_add_point (&bounds, c); + _cairo_box_add_point (&bounds, d); + + if (bounds.p2.x <= box->p1.x || bounds.p1.x >= box->p2.x || + bounds.p2.y <= box->p1.y || bounds.p1.y >= box->p2.y) + { + return FALSE; + } + +#if 0 /* worth refining? */ + bounds.p2 = bounds.p1 = *a; + _cairo_box_add_curve_to (&bounds, b, c, d); + if (bounds.p2.x <= box->p1.x || bounds.p1.x >= box->p2.x || + bounds.p2.y <= box->p1.y || bounds.p1.y >= box->p2.y) + { + return FALSE; + } +#endif + + return TRUE; +} + +cairo_bool_t +_cairo_spline_init (cairo_spline_t *spline, + cairo_spline_add_point_func_t add_point_func, + void *closure, + const cairo_point_t *a, const cairo_point_t *b, + const cairo_point_t *c, const cairo_point_t *d) +{ + /* If both tangents are zero, this is just a straight line */ + if (a->x == b->x && a->y == b->y && c->x == d->x && c->y == d->y) + return FALSE; + + spline->add_point_func = add_point_func; + spline->closure = closure; + + spline->knots.a = *a; + spline->knots.b = *b; + spline->knots.c = *c; + spline->knots.d = *d; + + if (a->x != b->x || a->y != b->y) + _cairo_slope_init (&spline->initial_slope, &spline->knots.a, &spline->knots.b); + else if (a->x != c->x || a->y != c->y) + _cairo_slope_init (&spline->initial_slope, &spline->knots.a, &spline->knots.c); + else if (a->x != d->x || a->y != d->y) + _cairo_slope_init (&spline->initial_slope, &spline->knots.a, &spline->knots.d); + else + return FALSE; + + if (c->x != d->x || c->y != d->y) + _cairo_slope_init (&spline->final_slope, &spline->knots.c, &spline->knots.d); + else if (b->x != d->x || b->y != d->y) + _cairo_slope_init (&spline->final_slope, &spline->knots.b, &spline->knots.d); + else + return FALSE; /* just treat this as a straight-line from a -> d */ + + /* XXX if the initial, final and vector are all equal, this is just a line */ + + return TRUE; +} + +static cairo_status_t +_cairo_spline_add_point (cairo_spline_t *spline, + const cairo_point_t *point, + const cairo_point_t *knot) +{ + cairo_point_t *prev; + cairo_slope_t slope; + + prev = &spline->last_point; + if (prev->x == point->x && prev->y == point->y) + return CAIRO_STATUS_SUCCESS; + + _cairo_slope_init (&slope, point, knot); + + spline->last_point = *point; + return spline->add_point_func (spline->closure, point, &slope); +} + +static void +_lerp_half (const cairo_point_t *a, const cairo_point_t *b, cairo_point_t *result) +{ + result->x = a->x + ((b->x - a->x) >> 1); + result->y = a->y + ((b->y - a->y) >> 1); +} + +static void +_de_casteljau (cairo_spline_knots_t *s1, cairo_spline_knots_t *s2) +{ + cairo_point_t ab, bc, cd; + cairo_point_t abbc, bccd; + cairo_point_t final; + + _lerp_half (&s1->a, &s1->b, &ab); + _lerp_half (&s1->b, &s1->c, &bc); + _lerp_half (&s1->c, &s1->d, &cd); + _lerp_half (&ab, &bc, &abbc); + _lerp_half (&bc, &cd, &bccd); + _lerp_half (&abbc, &bccd, &final); + + s2->a = final; + s2->b = bccd; + s2->c = cd; + s2->d = s1->d; + + s1->b = ab; + s1->c = abbc; + s1->d = final; +} + +/* Return an upper bound on the error (squared) that could result from + * approximating a spline as a line segment connecting the two endpoints. */ +static double +_cairo_spline_error_squared (const cairo_spline_knots_t *knots) +{ + double bdx, bdy, berr; + double cdx, cdy, cerr; + + /* We are going to compute the distance (squared) between each of the b + * and c control points and the segment a-b. The maximum of these two + * distances will be our approximation error. */ + + bdx = _cairo_fixed_to_double (knots->b.x - knots->a.x); + bdy = _cairo_fixed_to_double (knots->b.y - knots->a.y); + + cdx = _cairo_fixed_to_double (knots->c.x - knots->a.x); + cdy = _cairo_fixed_to_double (knots->c.y - knots->a.y); + + if (knots->a.x != knots->d.x || knots->a.y != knots->d.y) { + /* Intersection point (px): + * px = p1 + u(p2 - p1) + * (p - px) ∙ (p2 - p1) = 0 + * Thus: + * u = ((p - p1) ∙ (p2 - p1)) / ∥p2 - p1∥²; + */ + + double dx, dy, u, v; + + dx = _cairo_fixed_to_double (knots->d.x - knots->a.x); + dy = _cairo_fixed_to_double (knots->d.y - knots->a.y); + v = dx * dx + dy * dy; + + u = bdx * dx + bdy * dy; + if (u <= 0) { + /* bdx -= 0; + * bdy -= 0; + */ + } else if (u >= v) { + bdx -= dx; + bdy -= dy; + } else { + bdx -= u/v * dx; + bdy -= u/v * dy; + } + + u = cdx * dx + cdy * dy; + if (u <= 0) { + /* cdx -= 0; + * cdy -= 0; + */ + } else if (u >= v) { + cdx -= dx; + cdy -= dy; + } else { + cdx -= u/v * dx; + cdy -= u/v * dy; + } + } + + berr = bdx * bdx + bdy * bdy; + cerr = cdx * cdx + cdy * cdy; + if (berr > cerr) + return berr; + else + return cerr; +} + +static cairo_status_t +_cairo_spline_decompose_into (cairo_spline_knots_t *s1, + double tolerance_squared, + cairo_spline_t *result) +{ + cairo_spline_knots_t s2; + cairo_status_t status; + + if (_cairo_spline_error_squared (s1) < tolerance_squared) + return _cairo_spline_add_point (result, &s1->a, &s1->b); + + _de_casteljau (s1, &s2); + + status = _cairo_spline_decompose_into (s1, tolerance_squared, result); + if (unlikely (status)) + return status; + + return _cairo_spline_decompose_into (&s2, tolerance_squared, result); +} + +cairo_status_t +_cairo_spline_decompose (cairo_spline_t *spline, double tolerance) +{ + cairo_spline_knots_t s1; + cairo_status_t status; + + s1 = spline->knots; + spline->last_point = s1.a; + status = _cairo_spline_decompose_into (&s1, tolerance * tolerance, spline); + if (unlikely (status)) + return status; + + return spline->add_point_func (spline->closure, + &spline->knots.d, &spline->final_slope); +} + +/* Note: this function is only good for computing bounds in device space. */ +cairo_status_t +_cairo_spline_bound (cairo_spline_add_point_func_t add_point_func, + void *closure, + const cairo_point_t *p0, const cairo_point_t *p1, + const cairo_point_t *p2, const cairo_point_t *p3) +{ + double x0, x1, x2, x3; + double y0, y1, y2, y3; + double a, b, c; + double t[4]; + int t_num = 0, i; + cairo_status_t status; + + x0 = _cairo_fixed_to_double (p0->x); + y0 = _cairo_fixed_to_double (p0->y); + x1 = _cairo_fixed_to_double (p1->x); + y1 = _cairo_fixed_to_double (p1->y); + x2 = _cairo_fixed_to_double (p2->x); + y2 = _cairo_fixed_to_double (p2->y); + x3 = _cairo_fixed_to_double (p3->x); + y3 = _cairo_fixed_to_double (p3->y); + + /* The spline can be written as a polynomial of the four points: + * + * (1-t)³p0 + 3t(1-t)²p1 + 3t²(1-t)p2 + t³p3 + * + * for 0≤t≤1. Now, the X and Y components of the spline follow the + * same polynomial but with x and y replaced for p. To find the + * bounds of the spline, we just need to find the X and Y bounds. + * To find the bound, we take the derivative and equal it to zero, + * and solve to find the t's that give the extreme points. + * + * Here is the derivative of the curve, sorted on t: + * + * 3t²(-p0+3p1-3p2+p3) + 2t(3p0-6p1+3p2) -3p0+3p1 + * + * Let: + * + * a = -p0+3p1-3p2+p3 + * b = p0-2p1+p2 + * c = -p0+p1 + * + * Gives: + * + * a.t² + 2b.t + c = 0 + * + * With: + * + * delta = b*b - a*c + * + * the extreme points are at -c/2b if a is zero, at (-b±√delta)/a if + * delta is positive, and at -b/a if delta is zero. + */ + +#define ADD(t0) \ + { \ + double _t0 = (t0); \ + if (0 < _t0 && _t0 < 1) \ + t[t_num++] = _t0; \ + } + +#define FIND_EXTREMES(a,b,c) \ + { \ + if (a == 0) { \ + if (b != 0) \ + ADD (-c / (2*b)); \ + } else { \ + double b2 = b * b; \ + double delta = b2 - a * c; \ + if (delta > 0) { \ + cairo_bool_t feasible; \ + double _2ab = 2 * a * b; \ + /* We are only interested in solutions t that satisfy 0= 0) \ + feasible = delta > b2 && delta < a*a + b2 + _2ab; \ + else if (-b / a >= 1) \ + feasible = delta < b2 && delta > a*a + b2 + _2ab; \ + else \ + feasible = delta < b2 || delta < a*a + b2 + _2ab; \ + \ + if (unlikely (feasible)) { \ + double sqrt_delta = sqrt (delta); \ + ADD ((-b - sqrt_delta) / a); \ + ADD ((-b + sqrt_delta) / a); \ + } \ + } else if (delta == 0) { \ + ADD (-b / a); \ + } \ + } \ + } + + /* Find X extremes */ + a = -x0 + 3*x1 - 3*x2 + x3; + b = x0 - 2*x1 + x2; + c = -x0 + x1; + FIND_EXTREMES (a, b, c); + + /* Find Y extremes */ + a = -y0 + 3*y1 - 3*y2 + y3; + b = y0 - 2*y1 + y2; + c = -y0 + y1; + FIND_EXTREMES (a, b, c); + + status = add_point_func (closure, p0, NULL); + if (unlikely (status)) + return status; + + for (i = 0; i < t_num; i++) { + cairo_point_t p; + double x, y; + double t_1_0, t_0_1; + double t_2_0, t_0_2; + double t_3_0, t_2_1_3, t_1_2_3, t_0_3; + + t_1_0 = t[i]; /* t */ + t_0_1 = 1 - t_1_0; /* (1 - t) */ + + t_2_0 = t_1_0 * t_1_0; /* t * t */ + t_0_2 = t_0_1 * t_0_1; /* (1 - t) * (1 - t) */ + + t_3_0 = t_2_0 * t_1_0; /* t * t * t */ + t_2_1_3 = t_2_0 * t_0_1 * 3; /* t * t * (1 - t) * 3 */ + t_1_2_3 = t_1_0 * t_0_2 * 3; /* t * (1 - t) * (1 - t) * 3 */ + t_0_3 = t_0_1 * t_0_2; /* (1 - t) * (1 - t) * (1 - t) */ + + /* Bezier polynomial */ + x = x0 * t_0_3 + + x1 * t_1_2_3 + + x2 * t_2_1_3 + + x3 * t_3_0; + y = y0 * t_0_3 + + y1 * t_1_2_3 + + y2 * t_2_1_3 + + y3 * t_3_0; + + p.x = _cairo_fixed_from_double (x); + p.y = _cairo_fixed_from_double (y); + status = add_point_func (closure, &p, NULL); + if (unlikely (status)) + return status; + } + + return add_point_func (closure, p3, NULL); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-stroke-dash-private.h b/local/recipes/libs/cairo/source/src/cairo-stroke-dash-private.h new file mode 100644 index 0000000000..75c000cd73 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-stroke-dash-private.h @@ -0,0 +1,70 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +#ifndef CAIRO_STROKE_DASH_PRIVATE_H +#define CAIRO_STROKE_DASH_PRIVATE_H + +#include "cairoint.h" + +CAIRO_BEGIN_DECLS + +typedef struct _cairo_stroker_dash { + cairo_bool_t dashed; + unsigned int dash_index; + cairo_bool_t dash_on; + cairo_bool_t dash_starts_on; + double dash_remain; + + double dash_offset; + const double *dashes; + unsigned int num_dashes; +} cairo_stroker_dash_t; + +cairo_private void +_cairo_stroker_dash_init (cairo_stroker_dash_t *dash, + const cairo_stroke_style_t *style); + +cairo_private void +_cairo_stroker_dash_start (cairo_stroker_dash_t *dash); + +cairo_private void +_cairo_stroker_dash_step (cairo_stroker_dash_t *dash, double step); + +CAIRO_END_DECLS + +#endif /* CAIRO_STROKE_DASH_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-stroke-dash.c b/local/recipes/libs/cairo/source/src/cairo-stroke-dash.c new file mode 100644 index 0000000000..9494010f56 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-stroke-dash.c @@ -0,0 +1,96 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-stroke-dash-private.h" + +void +_cairo_stroker_dash_start (cairo_stroker_dash_t *dash) +{ + double offset; + cairo_bool_t on = TRUE; + unsigned int i = 0; + + if (! dash->dashed) + return; + + offset = dash->dash_offset; + + /* We stop searching for a starting point as soon as the + offset reaches zero. Otherwise when an initial dash + segment shrinks to zero it will be skipped over. */ + while (offset > 0.0 && offset >= dash->dashes[i]) { + offset -= dash->dashes[i]; + on = !on; + if (++i == dash->num_dashes) + i = 0; + } + + dash->dash_index = i; + dash->dash_on = dash->dash_starts_on = on; + dash->dash_remain = dash->dashes[i] - offset; +} + +void +_cairo_stroker_dash_step (cairo_stroker_dash_t *dash, double step) +{ + dash->dash_remain -= step; + if (dash->dash_remain < CAIRO_FIXED_ERROR_DOUBLE) { + if (++dash->dash_index == dash->num_dashes) + dash->dash_index = 0; + + dash->dash_on = ! dash->dash_on; + dash->dash_remain += dash->dashes[dash->dash_index]; + } +} + +void +_cairo_stroker_dash_init (cairo_stroker_dash_t *dash, + const cairo_stroke_style_t *style) +{ + dash->dashed = style->dash != NULL; + if (! dash->dashed) + return; + + dash->dashes = style->dash; + dash->num_dashes = style->num_dashes; + dash->dash_offset = style->dash_offset; + + _cairo_stroker_dash_start (dash); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-stroke-style.c b/local/recipes/libs/cairo/source/src/cairo-stroke-style.c new file mode 100644 index 0000000000..fed8aec55f --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-stroke-style.c @@ -0,0 +1,358 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl Worth + */ + +#include "cairoint.h" +#include "cairo-error-private.h" + +void +_cairo_stroke_style_init (cairo_stroke_style_t *style) +{ + VG (VALGRIND_MAKE_MEM_UNDEFINED (style, sizeof (cairo_stroke_style_t))); + + style->line_width = CAIRO_GSTATE_LINE_WIDTH_DEFAULT; + style->line_cap = CAIRO_GSTATE_LINE_CAP_DEFAULT; + style->line_join = CAIRO_GSTATE_LINE_JOIN_DEFAULT; + style->miter_limit = CAIRO_GSTATE_MITER_LIMIT_DEFAULT; + + style->dash = NULL; + style->num_dashes = 0; + style->dash_offset = 0.0; + + style->is_hairline = FALSE; +} + +cairo_status_t +_cairo_stroke_style_init_copy (cairo_stroke_style_t *style, + const cairo_stroke_style_t *other) +{ + if (CAIRO_INJECT_FAULT ()) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + VG (VALGRIND_MAKE_MEM_UNDEFINED (style, sizeof (cairo_stroke_style_t))); + + style->line_width = other->line_width; + style->line_cap = other->line_cap; + style->line_join = other->line_join; + style->miter_limit = other->miter_limit; + + style->num_dashes = other->num_dashes; + + if (other->dash == NULL) { + style->dash = NULL; + } else { + style->dash = _cairo_malloc_ab (style->num_dashes, sizeof (double)); + if (unlikely (style->dash == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memcpy (style->dash, other->dash, + style->num_dashes * sizeof (double)); + } + + style->dash_offset = other->dash_offset; + + style->is_hairline = other->is_hairline; + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_stroke_style_fini (cairo_stroke_style_t *style) +{ + free (style->dash); + style->dash = NULL; + + style->num_dashes = 0; + + VG (VALGRIND_MAKE_MEM_UNDEFINED (style, sizeof (cairo_stroke_style_t))); +} + +/* + * For a stroke in the given style, compute the maximum distance + * from the path that vertices could be generated. In the case + * of rotation in the ctm, the distance will not be exact. + */ +void +_cairo_stroke_style_max_distance_from_path (const cairo_stroke_style_t *style, + const cairo_path_fixed_t *path, + const cairo_matrix_t *ctm, + double *dx, double *dy) +{ + double style_expansion = 0.5; + + if (style->line_cap == CAIRO_LINE_CAP_SQUARE) + style_expansion = M_SQRT1_2; + + if (style->line_join == CAIRO_LINE_JOIN_MITER && + ! path->stroke_is_rectilinear && + style_expansion < M_SQRT2 * style->miter_limit) + { + style_expansion = M_SQRT2 * style->miter_limit; + } + + style_expansion *= style->line_width; + + if (_cairo_matrix_has_unity_scale (ctm)) { + *dx = *dy = style_expansion; + } else { + *dx = style_expansion * hypot (ctm->xx, ctm->xy); + *dy = style_expansion * hypot (ctm->yy, ctm->yx); + } +} + +void +_cairo_stroke_style_max_line_distance_from_path (const cairo_stroke_style_t *style, + const cairo_path_fixed_t *path, + const cairo_matrix_t *ctm, + double *dx, double *dy) +{ + double style_expansion = 0.5 * style->line_width; + if (_cairo_matrix_has_unity_scale (ctm)) { + *dx = *dy = style_expansion; + } else { + *dx = style_expansion * hypot (ctm->xx, ctm->xy); + *dy = style_expansion * hypot (ctm->yy, ctm->yx); + } +} + +void +_cairo_stroke_style_max_join_distance_from_path (const cairo_stroke_style_t *style, + const cairo_path_fixed_t *path, + const cairo_matrix_t *ctm, + double *dx, double *dy) +{ + double style_expansion = 0.5; + + if (style->line_join == CAIRO_LINE_JOIN_MITER && + ! path->stroke_is_rectilinear && + style_expansion < M_SQRT2 * style->miter_limit) + { + style_expansion = M_SQRT2 * style->miter_limit; + } + + style_expansion *= style->line_width; + + if (_cairo_matrix_has_unity_scale (ctm)) { + *dx = *dy = style_expansion; + } else { + *dx = style_expansion * hypot (ctm->xx, ctm->xy); + *dy = style_expansion * hypot (ctm->yy, ctm->yx); + } +} +/* + * Computes the period of a dashed stroke style. + * Returns 0 for non-dashed styles. + */ +double +_cairo_stroke_style_dash_period (const cairo_stroke_style_t *style) +{ + double period; + unsigned int i; + + period = 0.0; + for (i = 0; i < style->num_dashes; i++) + period += style->dash[i]; + + if (style->num_dashes & 1) + period *= 2.0; + + return period; +} + +/* + * Coefficient of the linear approximation (minimizing square difference) + * of the surface covered by round caps + * + * This can be computed in the following way: + * the area inside the circle with radius w/2 and the region -d/2 <= x <= d/2 is: + * f(w,d) = 2 * integrate (sqrt (w*w/4 - x*x), x, -d/2, d/2) + * The square difference to a generic linear approximation (c*d) in the range (0,w) would be: + * integrate ((f(w,d) - c*d)^2, d, 0, w) + * To minimize this difference it is sufficient to find a solution of the differential with + * respect to c: + * solve ( diff (integrate ((f(w,d) - c*d)^2, d, 0, w), c), c) + * Which leads to c = 9/32*pi*w + * Since we're not interested in the true area, but just in a coverage estimate, + * we always divide the real area by the line width (w). + * The same computation for square caps would be + * f(w,d) = 2 * integrate(w/2, x, -d/2, d/2) + * c = 1*w + * but in this case it would not be an approximation, since f is already linear in d. + */ +#define ROUND_MINSQ_APPROXIMATION (9*M_PI/32) + +/* + * Computes the length of the "on" part of a dashed stroke style, + * taking into account also line caps. + * Returns 0 for non-dashed styles. + */ +double +_cairo_stroke_style_dash_stroked (const cairo_stroke_style_t *style) +{ + double stroked, cap_scale; + unsigned int i; + + switch (style->line_cap) { + default: ASSERT_NOT_REACHED; + case CAIRO_LINE_CAP_BUTT: cap_scale = 0.0; break; + case CAIRO_LINE_CAP_ROUND: cap_scale = ROUND_MINSQ_APPROXIMATION; break; + case CAIRO_LINE_CAP_SQUARE: cap_scale = 1.0; break; + } + + stroked = 0.0; + if (style->num_dashes & 1) { + /* Each dash element is used both as on and as off. The order in which they are summed is + * irrelevant, so sum the coverage of one dash element, taken both on and off at each iteration */ + for (i = 0; i < style->num_dashes; i++) + stroked += style->dash[i] + cap_scale * MIN (style->dash[i], style->line_width); + } else { + /* Even (0, 2, ...) dashes are on and simply counted for the coverage, odd dashes are off, thus + * their coverage is approximated based on the area covered by the caps of adjacent on dases. */ + for (i = 0; i + 1 < style->num_dashes; i += 2) + stroked += style->dash[i] + cap_scale * MIN (style->dash[i+1], style->line_width); + } + + return stroked; +} + +/* + * Verifies if _cairo_stroke_style_dash_approximate should be used to generate + * an approximation of the dash pattern in the specified style, when used for + * stroking a path with the given CTM and tolerance. + * Always %FALSE for non-dashed styles. + */ +cairo_bool_t +_cairo_stroke_style_dash_can_approximate (const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + double tolerance) +{ + double period; + + if (! style->num_dashes) + return FALSE; + + period = _cairo_stroke_style_dash_period (style); + return _cairo_matrix_transformed_circle_major_axis (ctm, period) < tolerance; +} + +/* + * Create a 2-dashes approximation of a dashed style, by making the "on" and "off" + * parts respect the original ratio. + */ +void +_cairo_stroke_style_dash_approximate (const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + double tolerance, + double *dash_offset, + double *dashes, + unsigned int *num_dashes) +{ + double coverage, scale, offset; + cairo_bool_t on = TRUE; + unsigned int i = 0; + + coverage = _cairo_stroke_style_dash_stroked (style) / _cairo_stroke_style_dash_period (style); + coverage = MIN (coverage, 1.0); + scale = tolerance / _cairo_matrix_transformed_circle_major_axis (ctm, 1.0); + + /* We stop searching for a starting point as soon as the + * offset reaches zero. Otherwise when an initial dash + * segment shrinks to zero it will be skipped over. */ + offset = style->dash_offset; + while (offset > 0.0 && offset >= style->dash[i]) { + offset -= style->dash[i]; + on = !on; + if (++i == style->num_dashes) + i = 0; + } + + *num_dashes = 2; + + /* + * We want to create a new dash pattern with the same relative coverage, + * but composed of just 2 elements with total length equal to scale. + * Based on the formula in _cairo_stroke_style_dash_stroked: + * scale * coverage = dashes[0] + cap_scale * MIN (dashes[1], line_width) + * = MIN (dashes[0] + cap_scale * (scale - dashes[0]), + * dashes[0] + cap_scale * line_width) = + * = MIN (dashes[0] * (1 - cap_scale) + cap_scale * scale, + * dashes[0] + cap_scale * line_width) + * + * Solving both cases we get: + * dashes[0] = scale * (coverage - cap_scale) / (1 - cap_scale) + * when scale - dashes[0] <= line_width + * dashes[0] = scale * coverage - cap_scale * line_width + * when scale - dashes[0] > line_width. + * + * Comparing the two cases we get: + * second > first + * second > scale * (coverage - cap_scale) / (1 - cap_scale) + * second - cap_scale * second - scale * coverage + scale * cap_scale > 0 + * (scale * coverage - cap_scale * line_width) - cap_scale * second - scale * coverage + scale * cap_scale > 0 + * - line_width - second + scale > 0 + * scale - second > line_width + * which is the condition for the second solution to be the valid one. + * So when second > first, the second solution is the correct one (i.e. + * the solution is always MAX (first, second). + */ + switch (style->line_cap) { + default: + ASSERT_NOT_REACHED; + dashes[0] = 0.0; + break; + + case CAIRO_LINE_CAP_BUTT: + /* Simplified formula (substituting 0 for cap_scale): */ + dashes[0] = scale * coverage; + break; + + case CAIRO_LINE_CAP_ROUND: + dashes[0] = MAX(scale * (coverage - ROUND_MINSQ_APPROXIMATION) / (1.0 - ROUND_MINSQ_APPROXIMATION), + scale * coverage - ROUND_MINSQ_APPROXIMATION * style->line_width); + break; + + case CAIRO_LINE_CAP_SQUARE: + /* + * Special attention is needed to handle the case cap_scale == 1 (since the first solution + * is either indeterminate or -inf in this case). Since dash lengths are always >=0, using + * 0 as first solution always leads to the correct solution. + */ + dashes[0] = MAX(0.0, scale * coverage - style->line_width); + break; + } + + dashes[1] = scale - dashes[0]; + + *dash_offset = on ? 0.0 : dashes[0]; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-backend-private.h b/local/recipes/libs/cairo/source/src/cairo-surface-backend-private.h new file mode 100644 index 0000000000..856c596c86 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-backend-private.h @@ -0,0 +1,257 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_SURFACE_BACKEND_PRIVATE_H +#define CAIRO_SURFACE_BACKEND_PRIVATE_H + +#include "cairo-compiler-private.h" +#include "cairo-error-private.h" +#include "cairo-pattern-private.h" + +CAIRO_BEGIN_DECLS + +struct _cairo_surface_backend { + cairo_surface_type_t type; + + cairo_warn cairo_status_t + (*finish) (void *surface); + + cairo_t * + (*create_context) (void *surface); + + cairo_surface_t * + (*create_similar) (void *surface, + cairo_content_t content, + int width, + int height); + cairo_surface_t * + (*create_similar_image) (void *surface, + cairo_format_t format, + int width, + int height); + + cairo_image_surface_t * + (*map_to_image) (void *surface, + const cairo_rectangle_int_t *extents); + cairo_int_status_t + (*unmap_image) (void *surface, + cairo_image_surface_t *image); + + cairo_surface_t * + (*source) (void *abstract_surface, + cairo_rectangle_int_t *extents); + + cairo_warn cairo_status_t + (*acquire_source_image) (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra); + + cairo_warn void + (*release_source_image) (void *abstract_surface, + cairo_image_surface_t *image_out, + void *image_extra); + + cairo_surface_t * + (*snapshot) (void *surface); + + cairo_warn cairo_int_status_t + (*copy_page) (void *surface); + + cairo_warn cairo_int_status_t + (*show_page) (void *surface); + + /* Get the extents of the current surface. For many surface types + * this will be as simple as { x=0, y=0, width=surface->width, + * height=surface->height}. + * + * If this function is not implemented, or if it returns + * FALSE the surface is considered to be + * boundless and infinite bounds are used for it. + */ + cairo_bool_t + (*get_extents) (void *surface, + cairo_rectangle_int_t *extents); + + void + (*get_font_options) (void *surface, + cairo_font_options_t *options); + + cairo_warn cairo_status_t + (*flush) (void *surface, + unsigned flags); + + cairo_warn cairo_status_t + (*mark_dirty_rectangle) (void *surface, + int x, + int y, + int width, + int height); + + cairo_warn cairo_int_status_t + (*paint) (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip); + + cairo_warn cairo_int_status_t + (*mask) (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip); + + cairo_warn cairo_int_status_t + (*stroke) (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip); + + cairo_warn cairo_int_status_t + (*fill) (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip); + + cairo_warn cairo_int_status_t + (*fill_stroke) (void *surface, + cairo_operator_t fill_op, + const cairo_pattern_t *fill_source, + cairo_fill_rule_t fill_rule, + double fill_tolerance, + cairo_antialias_t fill_antialias, + const cairo_path_fixed_t*path, + cairo_operator_t stroke_op, + const cairo_pattern_t *stroke_source, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *stroke_ctm, + const cairo_matrix_t *stroke_ctm_inverse, + double stroke_tolerance, + cairo_antialias_t stroke_antialias, + const cairo_clip_t *clip); + + cairo_warn cairo_int_status_t + (*show_glyphs) (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip); + + cairo_bool_t + (*has_show_text_glyphs) (void *surface); + + cairo_warn cairo_int_status_t + (*show_text_glyphs) (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const char *utf8, + int utf8_len, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip); + + const char ** + (*get_supported_mime_types) (void *surface); + + cairo_warn cairo_int_status_t + (*tag) (void *surface, + cairo_bool_t begin, + const char *tag_name, + const char *attributes); + + cairo_bool_t + (*supports_color_glyph) (void *surface, + cairo_scaled_font_t *scaled_font, + unsigned long glyph_index); + + /* Paginated surfaces only. During the analysis stage, if any + * recording surfaces used as a source are to be replayed, this + * function will be called at the begining and end of the replay. + * + * @recording_surface - the recording surface used as a source + * @source_type - a type indicating the combination of drawing + * operation and source type + * @begin - TRUE when called before the replay, FALSE when called + * after the replay has finished. + */ + cairo_warn cairo_int_status_t + (*analyze_recording_surface)(void *surface, + const cairo_surface_pattern_t *recording_surface_pattern, + unsigned int region_id, + cairo_analysis_source_t source_type, + cairo_bool_t begin); + + cairo_warn cairo_int_status_t + (*command_id) (void *surface, + unsigned int recording_id, + unsigned int command_id); + +}; + +cairo_private cairo_status_t +_cairo_surface_default_acquire_source_image (void *surface, + cairo_image_surface_t **image_out, + void **image_extra); + +cairo_private void +_cairo_surface_default_release_source_image (void *surface, + cairo_image_surface_t *image, + void *image_extra); + +cairo_private cairo_surface_t * +_cairo_surface_default_source (void *surface, + cairo_rectangle_int_t *extents); + +CAIRO_END_DECLS + +#endif /* CAIRO_SURFACE_BACKEND_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-clipper-private.h b/local/recipes/libs/cairo/source/src/cairo-surface-clipper-private.h new file mode 100644 index 0000000000..e5b00af7c6 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-clipper-private.h @@ -0,0 +1,71 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_SURFACE_CLIPPER_PRIVATE_H +#define CAIRO_SURFACE_CLIPPER_PRIVATE_H + +#include "cairo-types-private.h" +#include "cairo-clip-private.h" + +CAIRO_BEGIN_DECLS + +typedef struct _cairo_surface_clipper cairo_surface_clipper_t; + +typedef cairo_status_t +(*cairo_surface_clipper_intersect_clip_path_func_t) (cairo_surface_clipper_t *, + cairo_path_fixed_t *, + cairo_fill_rule_t, + double, + cairo_antialias_t); +struct _cairo_surface_clipper { + cairo_clip_t *clip; + cairo_surface_clipper_intersect_clip_path_func_t intersect_clip_path; +}; + +cairo_private cairo_status_t +_cairo_surface_clipper_set_clip (cairo_surface_clipper_t *clipper, + const cairo_clip_t *clip); + +cairo_private void +_cairo_surface_clipper_init (cairo_surface_clipper_t *clipper, + cairo_surface_clipper_intersect_clip_path_func_t intersect); + +cairo_private void +_cairo_surface_clipper_reset (cairo_surface_clipper_t *clipper); + +CAIRO_END_DECLS + +#endif /* CAIRO_SURFACE_CLIPPER_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-clipper.c b/local/recipes/libs/cairo/source/src/cairo-surface-clipper.c new file mode 100644 index 0000000000..5309362c68 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-clipper.c @@ -0,0 +1,196 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-clip-inline.h" +#include "cairo-surface-clipper-private.h" + +/* A collection of routines to facilitate vector surface clipping */ + +/* XXX Eliminate repeated paths and nested clips */ + +static cairo_status_t +_cairo_path_fixed_add_box (cairo_path_fixed_t *path, + const cairo_box_t *box) +{ + cairo_status_t status; + + status = _cairo_path_fixed_move_to (path, box->p1.x, box->p1.y); + if (unlikely (status)) + return status; + + status = _cairo_path_fixed_line_to (path, box->p2.x, box->p1.y); + if (unlikely (status)) + return status; + + status = _cairo_path_fixed_line_to (path, box->p2.x, box->p2.y); + if (unlikely (status)) + return status; + + status = _cairo_path_fixed_line_to (path, box->p1.x, box->p2.y); + if (unlikely (status)) + return status; + + return _cairo_path_fixed_close_path (path); +} + +static cairo_status_t +_cairo_surface_clipper_intersect_clip_boxes (cairo_surface_clipper_t *clipper, + const cairo_clip_t *clip) +{ + cairo_path_fixed_t path; + cairo_status_t status; + int i; + + if (clip->num_boxes == 0) + return CAIRO_STATUS_SUCCESS; + + /* Reconstruct the path for the clip boxes. + * XXX maybe a new clipper callback? + */ + + _cairo_path_fixed_init (&path); + for (i = 0; i < clip->num_boxes; i++) { + status = _cairo_path_fixed_add_box (&path, &clip->boxes[i]); + if (unlikely (status)) { + _cairo_path_fixed_fini (&path); + return status; + } + } + + status = clipper->intersect_clip_path (clipper, &path, + CAIRO_FILL_RULE_WINDING, + 0., + CAIRO_ANTIALIAS_DEFAULT); + _cairo_path_fixed_fini (&path); + + return status; +} + +static cairo_status_t +_cairo_surface_clipper_intersect_clip_path_recursive (cairo_surface_clipper_t *clipper, + cairo_clip_path_t *clip_path, + cairo_clip_path_t *end) +{ + cairo_status_t status; + + if (clip_path->prev != end) { + status = + _cairo_surface_clipper_intersect_clip_path_recursive (clipper, + clip_path->prev, + end); + if (unlikely (status)) + return status; + } + + return clipper->intersect_clip_path (clipper, + &clip_path->path, + clip_path->fill_rule, + clip_path->tolerance, + clip_path->antialias); +} + +cairo_status_t +_cairo_surface_clipper_set_clip (cairo_surface_clipper_t *clipper, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_bool_t incremental = FALSE; + + if (_cairo_clip_equal (clip, clipper->clip)) + return CAIRO_STATUS_SUCCESS; + + /* all clipped out state should never propagate this far */ + assert (!_cairo_clip_is_all_clipped (clip)); + + /* XXX Is this an incremental clip? */ + if (clipper->clip && clip && + clip->num_boxes == clipper->clip->num_boxes && + memcmp (clip->boxes, clipper->clip->boxes, + sizeof (cairo_box_t) * clip->num_boxes) == 0) + { + cairo_clip_path_t *clip_path = clip->path; + while (clip_path != NULL && clip_path != clipper->clip->path) + clip_path = clip_path->prev; + + if (clip_path) { + incremental = TRUE; + status = _cairo_surface_clipper_intersect_clip_path_recursive (clipper, + clip->path, + clipper->clip->path); + } + } + + _cairo_clip_destroy (clipper->clip); + clipper->clip = _cairo_clip_copy (clip); + + if (incremental) + return status; + + status = clipper->intersect_clip_path (clipper, NULL, 0, 0, 0); + if (unlikely (status)) + return status; + + if (clip == NULL) + return CAIRO_STATUS_SUCCESS; + + status = _cairo_surface_clipper_intersect_clip_boxes (clipper, clip); + if (unlikely (status)) + return status; + + if (clip->path != NULL) { + status = _cairo_surface_clipper_intersect_clip_path_recursive (clipper, + clip->path, + NULL); + } + + return status; +} + +void +_cairo_surface_clipper_init (cairo_surface_clipper_t *clipper, + cairo_surface_clipper_intersect_clip_path_func_t func) +{ + clipper->clip = NULL; + clipper->intersect_clip_path = func; +} + +void +_cairo_surface_clipper_reset (cairo_surface_clipper_t *clipper) +{ + _cairo_clip_destroy (clipper->clip); + clipper->clip = NULL; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-fallback-private.h b/local/recipes/libs/cairo/source/src/cairo-surface-fallback-private.h new file mode 100644 index 0000000000..ecf7b0edf2 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-fallback-private.h @@ -0,0 +1,95 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Joonas Pihlaja + * Chris Wilson + */ + +#ifndef CAIRO_SURFACE_FALLBACK_PRIVATE_H +#define CAIRO_SURFACE_FALLBACK_PRIVATE_H + +#include "cairoint.h" + +CAIRO_BEGIN_DECLS + +cairo_private cairo_int_status_t +_cairo_surface_fallback_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip); + +cairo_private cairo_int_status_t +_cairo_surface_fallback_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip); + +cairo_private cairo_int_status_t +_cairo_surface_fallback_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t*style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip); + +cairo_private cairo_int_status_t +_cairo_surface_fallback_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip); + +cairo_private cairo_int_status_t +_cairo_surface_fallback_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip); + +CAIRO_END_DECLS + +#endif /* CAIRO_SURFACE_FALLBACK_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-fallback.c b/local/recipes/libs/cairo/source/src/cairo-surface-fallback.c new file mode 100644 index 0000000000..a0af159692 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-fallback.c @@ -0,0 +1,115 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Joonas Pihlaja + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-compositor-private.h" +#include "cairo-surface-fallback-private.h" + +cairo_int_status_t +_cairo_surface_fallback_paint (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + return _cairo_compositor_paint (&_cairo_fallback_compositor, + surface, op, source, clip); +} + +cairo_int_status_t +_cairo_surface_fallback_mask (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + return _cairo_compositor_mask (&_cairo_fallback_compositor, + surface, op, source, mask, clip); +} + +cairo_int_status_t +_cairo_surface_fallback_stroke (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t*path, + const cairo_stroke_style_t*style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + return _cairo_compositor_stroke (&_cairo_fallback_compositor, + surface, op, source, path, + style, ctm,ctm_inverse, + tolerance, antialias, clip); +} + +cairo_int_status_t +_cairo_surface_fallback_fill (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + return _cairo_compositor_fill (&_cairo_fallback_compositor, + surface, op, source, path, + fill_rule, tolerance, antialias, + clip); +} + +cairo_int_status_t +_cairo_surface_fallback_glyphs (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + return _cairo_compositor_glyphs (&_cairo_fallback_compositor, + surface, op, source, + glyphs, num_glyphs, scaled_font, + clip); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-inline.h b/local/recipes/libs/cairo/source/src/cairo-surface-inline.h new file mode 100644 index 0000000000..85fbc9192b --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-inline.h @@ -0,0 +1,60 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_SURFACE_INLINE_H +#define CAIRO_SURFACE_INLINE_H + +#include "cairo-surface-private.h" + +static inline cairo_status_t +__cairo_surface_flush (cairo_surface_t *surface, unsigned flags) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + if (surface->backend->flush) + status = surface->backend->flush (surface, flags); + return status; +} + +static inline cairo_surface_t * +_cairo_surface_reference (cairo_surface_t *surface) +{ + if (!CAIRO_REFERENCE_COUNT_IS_INVALID (&surface->ref_count)) + _cairo_reference_count_inc (&surface->ref_count); + return surface; +} + +#endif /* CAIRO_SURFACE_INLINE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-observer-inline.h b/local/recipes/libs/cairo/source/src/cairo-surface-observer-inline.h new file mode 100644 index 0000000000..07b94770d4 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-observer-inline.h @@ -0,0 +1,59 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Intel Corporation. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_SURFACE_OBSERVER_INLINE_H +#define CAIRO_SURFACE_OBSERVER_INLINE_H + +#include "cairo-surface-observer-private.h" + +static inline cairo_surface_t * +_cairo_surface_observer_get_target (cairo_surface_t *surface) +{ + return ((cairo_surface_observer_t *) surface)->target; +} + +static inline cairo_bool_t +_cairo_surface_is_observer (cairo_surface_t *surface) +{ + return surface->backend->type == (cairo_surface_type_t)CAIRO_INTERNAL_SURFACE_TYPE_OBSERVER; +} + +static inline cairo_bool_t +_cairo_device_is_observer (cairo_device_t *device) +{ + return device->backend->type == (cairo_device_type_t)CAIRO_INTERNAL_DEVICE_TYPE_OBSERVER; +} + +#endif /* CAIRO_SURFACE_OBSERVER_INLINE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-observer-private.h b/local/recipes/libs/cairo/source/src/cairo-surface-observer-private.h new file mode 100644 index 0000000000..6ed0c18d17 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-observer-private.h @@ -0,0 +1,208 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Intel Corporation. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_SURFACE_OBSERVER_PRIVATE_H +#define CAIRO_SURFACE_OBSERVER_PRIVATE_H + +#include "cairoint.h" + +#include "cairo-device-private.h" +#include "cairo-list-private.h" +#include "cairo-recording-surface-private.h" +#include "cairo-surface-private.h" +#include "cairo-surface-backend-private.h" +#include "cairo-time-private.h" + +struct stat { + double min, max, sum, sum_sq; + unsigned count; +}; + +#define NUM_OPERATORS (CAIRO_OPERATOR_HSL_LUMINOSITY+1) +#define NUM_CAPS (CAIRO_LINE_CAP_SQUARE+1) +#define NUM_JOINS (CAIRO_LINE_JOIN_BEVEL+1) +#define NUM_ANTIALIAS (CAIRO_ANTIALIAS_BEST+1) +#define NUM_FILL_RULE (CAIRO_FILL_RULE_EVEN_ODD+1) + +struct extents { + struct stat area; + unsigned int bounded, unbounded; +}; + +struct pattern { + unsigned int type[8]; /* native/record/other surface/gradients */ +}; + +struct path { + unsigned int type[5]; /* empty/pixel/rectilinear/straight/curved */ +}; + +struct clip { + unsigned int type[6]; /* none, region, boxes, single path, polygon, general */ +}; + +typedef struct _cairo_observation cairo_observation_t; +typedef struct _cairo_observation_record cairo_observation_record_t; +typedef struct _cairo_device_observer cairo_device_observer_t; + +struct _cairo_observation_record { + cairo_content_t target_content; + int target_width; + int target_height; + + int index; + cairo_operator_t op; + int source; + int mask; + int num_glyphs; + int path; + int fill_rule; + double tolerance; + int antialias; + int clip; + cairo_time_t elapsed; +}; + +struct _cairo_observation { + int num_surfaces; + int num_contexts; + int num_sources_acquired; + + /* XXX put interesting stats here! */ + + struct paint { + cairo_time_t elapsed; + unsigned int count; + struct extents extents; + unsigned int operators[NUM_OPERATORS]; + struct pattern source; + struct clip clip; + unsigned int noop; + + cairo_observation_record_t slowest; + } paint; + + struct mask { + cairo_time_t elapsed; + unsigned int count; + struct extents extents; + unsigned int operators[NUM_OPERATORS]; + struct pattern source; + struct pattern mask; + struct clip clip; + unsigned int noop; + + cairo_observation_record_t slowest; + } mask; + + struct fill { + cairo_time_t elapsed; + unsigned int count; + struct extents extents; + unsigned int operators[NUM_OPERATORS]; + struct pattern source; + struct path path; + unsigned int antialias[NUM_ANTIALIAS]; + unsigned int fill_rule[NUM_FILL_RULE]; + struct clip clip; + unsigned int noop; + + cairo_observation_record_t slowest; + } fill; + + struct stroke { + cairo_time_t elapsed; + unsigned int count; + struct extents extents; + unsigned int operators[NUM_OPERATORS]; + unsigned int caps[NUM_CAPS]; + unsigned int joins[NUM_CAPS]; + unsigned int antialias[NUM_ANTIALIAS]; + struct pattern source; + struct path path; + struct stat line_width; + struct clip clip; + unsigned int noop; + + cairo_observation_record_t slowest; + } stroke; + + struct glyphs { + cairo_time_t elapsed; + unsigned int count; + struct extents extents; + unsigned int operators[NUM_OPERATORS]; + struct pattern source; + struct clip clip; + unsigned int noop; + + cairo_observation_record_t slowest; + } glyphs; + + cairo_array_t timings; + cairo_recording_surface_t *record; +}; + +struct _cairo_device_observer { + cairo_device_t base; + cairo_device_t *target; + + cairo_observation_t log; +}; + +struct callback_list { + cairo_list_t link; + + cairo_surface_observer_callback_t func; + void *data; +}; + +struct _cairo_surface_observer { + cairo_surface_t base; + cairo_surface_t *target; + + cairo_observation_t log; + + cairo_list_t paint_callbacks; + cairo_list_t mask_callbacks; + cairo_list_t fill_callbacks; + cairo_list_t stroke_callbacks; + cairo_list_t glyphs_callbacks; + + cairo_list_t flush_callbacks; + cairo_list_t finish_callbacks; +}; + +#endif /* CAIRO_SURFACE_OBSERVER_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-observer.c b/local/recipes/libs/cairo/source/src/cairo-surface-observer.c new file mode 100644 index 0000000000..9ff21fc271 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-observer.c @@ -0,0 +1,2301 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Intel Corporation. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-surface-observer-private.h" +#include "cairo-surface-observer-inline.h" + +#include "cairo-array-private.h" +#include "cairo-combsort-inline.h" +#include "cairo-composite-rectangles-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-list-inline.h" +#include "cairo-pattern-private.h" +#include "cairo-output-stream-private.h" +#include "cairo-recording-surface-private.h" +#include "cairo-surface-subsurface-inline.h" +#include "cairo-reference-count-private.h" + +#if CAIRO_HAS_SCRIPT_SURFACE +#include "cairo-script-private.h" +#endif + +/** + * SECTION:cairo-surface-observer + * @Title: Surface Observer + * @Short_Description: Observing other surfaces + * @See_Also: #cairo_surface_t + * + * A surface that exists solely to watch what another surface is doing. + **/ + +/** + * CAIRO_HAS_OBSERVER_SURFACE: + * + * Defined if the observer surface backend is available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.12 + **/ + +static const cairo_surface_backend_t _cairo_surface_observer_backend; + +/* observation/stats */ + +static void init_stats (struct stat *s) +{ + s->min = HUGE_VAL; + s->max = -HUGE_VAL; +} + +static void init_extents (struct extents *e) +{ + init_stats (&e->area); +} + +static void init_pattern (struct pattern *p) +{ +} + +static void init_path (struct path *p) +{ +} + +static void init_clip (struct clip *c) +{ +} + +static void init_paint (struct paint *p) +{ + init_extents (&p->extents); + init_pattern (&p->source); + init_clip (&p->clip); +} + +static void init_mask (struct mask *m) +{ + init_extents (&m->extents); + init_pattern (&m->source); + init_pattern (&m->mask); + init_clip (&m->clip); +} + +static void init_fill (struct fill *f) +{ + init_extents (&f->extents); + init_pattern (&f->source); + init_path (&f->path); + init_clip (&f->clip); +} + +static void init_stroke (struct stroke *s) +{ + init_extents (&s->extents); + init_pattern (&s->source); + init_path (&s->path); + init_clip (&s->clip); +} + +static void init_glyphs (struct glyphs *g) +{ + init_extents (&g->extents); + init_pattern (&g->source); + init_clip (&g->clip); +} + +static cairo_status_t +log_init (cairo_observation_t *log, + cairo_bool_t record) +{ + memset (log, 0, sizeof(*log)); + + init_paint (&log->paint); + init_mask (&log->mask); + init_fill (&log->fill); + init_stroke (&log->stroke); + init_glyphs (&log->glyphs); + + _cairo_array_init (&log->timings, sizeof (cairo_observation_record_t)); + + if (record) { + log->record = (cairo_recording_surface_t *) + cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + if (unlikely (log->record->base.status)) + return log->record->base.status; + + log->record->optimize_clears = FALSE; + } + + return CAIRO_STATUS_SUCCESS; +} + +static void +log_fini (cairo_observation_t *log) +{ + _cairo_array_fini (&log->timings); + cairo_surface_destroy (&log->record->base); +} + +static cairo_surface_t* +get_pattern_surface (const cairo_pattern_t *pattern) +{ + return ((cairo_surface_pattern_t *)pattern)->surface; +} + +static int +classify_pattern (const cairo_pattern_t *pattern, + const cairo_surface_t *target) +{ + int classify; + + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SURFACE: + if (get_pattern_surface (pattern)->type == target->type) + classify = 0; + else if (get_pattern_surface (pattern)->type == CAIRO_SURFACE_TYPE_RECORDING) + classify = 1; + else + classify = 2; + break; + default: + case CAIRO_PATTERN_TYPE_SOLID: + classify = 3; + break; + case CAIRO_PATTERN_TYPE_LINEAR: + classify = 4; + break; + case CAIRO_PATTERN_TYPE_RADIAL: + classify = 5; + break; + case CAIRO_PATTERN_TYPE_MESH: + classify = 6; + break; + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + classify = 7; + break; + } + return classify; +} + +static void +add_pattern (struct pattern *stats, + const cairo_pattern_t *pattern, + const cairo_surface_t *target) +{ + stats->type[classify_pattern(pattern, target)]++; +} + +static int +classify_path (const cairo_path_fixed_t *path, + cairo_bool_t is_fill) +{ + int classify; + + /* XXX improve for stroke */ + classify = -1; + if (is_fill) { + if (path->fill_is_empty) + classify = 0; + else if (_cairo_path_fixed_fill_is_rectilinear (path)) + classify = path->fill_maybe_region ? 1 : 2; + } else { + if (_cairo_path_fixed_stroke_is_rectilinear (path)) + classify = 2; + } + if (classify == -1) + classify = 3 + (path->has_curve_to != 0); + + return classify; +} + +static void +add_path (struct path *stats, + const cairo_path_fixed_t *path, + cairo_bool_t is_fill) +{ + stats->type[classify_path(path, is_fill)]++; +} + +static int +classify_clip (const cairo_clip_t *clip) +{ + int classify; + + if (clip == NULL) + classify = 0; + else if (_cairo_clip_is_region (clip)) + classify = 1; + else if (clip->path == NULL) + classify = 2; + else if (clip->path->prev == NULL) + classify = 3; + else if (_cairo_clip_is_polygon (clip)) + classify = 4; + else + classify = 5; + + return classify; +} + +static void +add_clip (struct clip *stats, + const cairo_clip_t *clip) +{ + stats->type[classify_clip (clip)]++; +} + +static void +stats_add (struct stat *s, double v) +{ + if (v < s->min) + s->min = v; + if (v > s->max) + s->max = v; + s->sum += v; + s->sum_sq += v*v; + s->count++; +} + +static void +add_extents (struct extents *stats, + const cairo_composite_rectangles_t *extents) +{ + const cairo_rectangle_int_t *r = extents->is_bounded ? &extents->bounded :&extents->unbounded; + stats_add (&stats->area, r->width * r->height); + stats->bounded += extents->is_bounded != 0; + stats->unbounded += extents->is_bounded == 0; +} + +/* device interface */ + +static void +_cairo_device_observer_lock (void *_device) +{ + cairo_device_observer_t *device = (cairo_device_observer_t *) _device; + cairo_status_t ignored; + + /* cairo_device_acquire() can fail for nil and finished + * devices. We don't care about observing them. */ + ignored = cairo_device_acquire (device->target); +} + +static void +_cairo_device_observer_unlock (void *_device) +{ + cairo_device_observer_t *device = (cairo_device_observer_t *) _device; + cairo_device_release (device->target); +} + +static cairo_status_t +_cairo_device_observer_flush (void *_device) +{ + cairo_device_observer_t *device = (cairo_device_observer_t *) _device; + + if (device->target == NULL) + return CAIRO_STATUS_SUCCESS; + + cairo_device_flush (device->target); + return device->target->status; +} + +static void +_cairo_device_observer_finish (void *_device) +{ + cairo_device_observer_t *device = (cairo_device_observer_t *) _device; + log_fini (&device->log); + cairo_device_finish (device->target); +} + +static void +_cairo_device_observer_destroy (void *_device) +{ + cairo_device_observer_t *device = (cairo_device_observer_t *) _device; + cairo_device_destroy (device->target); + free (device); +} + +static const cairo_device_backend_t _cairo_device_observer_backend = { + CAIRO_INTERNAL_DEVICE_TYPE_OBSERVER, + + _cairo_device_observer_lock, + _cairo_device_observer_unlock, + + _cairo_device_observer_flush, + _cairo_device_observer_finish, + _cairo_device_observer_destroy, +}; + +static cairo_device_t * +_cairo_device_create_observer_internal (cairo_device_t *target, + cairo_bool_t record) +{ + cairo_device_observer_t *device; + cairo_status_t status; + + device = _cairo_calloc (sizeof (cairo_device_observer_t)); + if (unlikely (device == NULL)) + return _cairo_device_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_device_init (&device->base, &_cairo_device_observer_backend); + status = log_init (&device->log, record); + if (unlikely (status)) { + free (device); + return _cairo_device_create_in_error (status); + } + + device->target = cairo_device_reference (target); + + return &device->base; +} + +/* surface interface */ + +static cairo_device_observer_t * +to_device (cairo_surface_observer_t *suface) +{ + return (cairo_device_observer_t *)suface->base.device; +} + +static cairo_surface_t * +_cairo_surface_create_observer_internal (cairo_device_t *device, + cairo_surface_t *target) +{ + cairo_surface_observer_t *surface; + cairo_status_t status; + + surface = _cairo_calloc (sizeof (cairo_surface_observer_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_surface_init (&surface->base, + &_cairo_surface_observer_backend, device, + target->content, + target->is_vector); + + status = log_init (&surface->log, + ((cairo_device_observer_t *)device)->log.record != NULL); + if (unlikely (status)) { + free (surface); + return _cairo_surface_create_in_error (status); + } + + surface->target = cairo_surface_reference (target); + surface->base.type = surface->target->type; + surface->base.is_clear = surface->target->is_clear; + + cairo_list_init (&surface->paint_callbacks); + cairo_list_init (&surface->mask_callbacks); + cairo_list_init (&surface->fill_callbacks); + cairo_list_init (&surface->stroke_callbacks); + cairo_list_init (&surface->glyphs_callbacks); + + cairo_list_init (&surface->flush_callbacks); + cairo_list_init (&surface->finish_callbacks); + + surface->log.num_surfaces++; + to_device (surface)->log.num_surfaces++; + + return &surface->base; +} + +static inline void +do_callbacks (cairo_surface_observer_t *surface, cairo_list_t *head) +{ + struct callback_list *cb; + + cairo_list_foreach_entry (cb, struct callback_list, head, link) + cb->func (&surface->base, surface->target, cb->data); +} + + +static cairo_status_t +_cairo_surface_observer_finish (void *abstract_surface) +{ + cairo_surface_observer_t *surface = abstract_surface; + + do_callbacks (surface, &surface->finish_callbacks); + + cairo_surface_destroy (surface->target); + log_fini (&surface->log); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_surface_t * +_cairo_surface_observer_create_similar (void *abstract_other, + cairo_content_t content, + int width, int height) +{ + cairo_surface_observer_t *other = abstract_other; + cairo_surface_t *target, *surface; + + target = NULL; + if (other->target->backend->create_similar) + target = other->target->backend->create_similar (other->target, content, + width, height); + if (target == NULL) + target = _cairo_image_surface_create_with_content (content, + width, height); + + surface = _cairo_surface_create_observer_internal (other->base.device, + target); + cairo_surface_destroy (target); + + return surface; +} + +static cairo_surface_t * +_cairo_surface_observer_create_similar_image (void *other, + cairo_format_t format, + int width, int height) +{ + cairo_surface_observer_t *surface = other; + + if (surface->target->backend->create_similar_image) + return surface->target->backend->create_similar_image (surface->target, + format, + width, height); + + return NULL; +} + +static cairo_image_surface_t * +_cairo_surface_observer_map_to_image (void *abstract_surface, + const cairo_rectangle_int_t *extents) +{ + cairo_surface_observer_t *surface = abstract_surface; + return _cairo_surface_map_to_image (surface->target, extents); +} + +static cairo_int_status_t +_cairo_surface_observer_unmap_image (void *abstract_surface, + cairo_image_surface_t *image) +{ + cairo_surface_observer_t *surface = abstract_surface; + return _cairo_surface_unmap_image (surface->target, image); +} + +static void +record_target (cairo_observation_record_t *r, + cairo_surface_t *target) +{ + cairo_rectangle_int_t extents; + + r->target_content = target->content; + if (_cairo_surface_get_extents (target, &extents)) { + r->target_width = extents.width; + r->target_height = extents.height; + } else { + r->target_width = -1; + r->target_height = -1; + } +} + +static cairo_observation_record_t * +record_paint (cairo_observation_record_t *r, + cairo_surface_t *target, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip, + cairo_time_t elapsed) +{ + record_target (r, target); + + r->op = op; + r->source = classify_pattern (source, target); + r->mask = -1; + r->num_glyphs = -1; + r->path = -1; + r->fill_rule = -1; + r->tolerance = -1; + r->antialias = -1; + r->clip = classify_clip (clip); + r->elapsed = elapsed; + + return r; +} + +static cairo_observation_record_t * +record_mask (cairo_observation_record_t *r, + cairo_surface_t *target, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip, + cairo_time_t elapsed) +{ + record_target (r, target); + + r->op = op; + r->source = classify_pattern (source, target); + r->mask = classify_pattern (mask, target); + r->num_glyphs = -1; + r->path = -1; + r->fill_rule = -1; + r->tolerance = -1; + r->antialias = -1; + r->clip = classify_clip (clip); + r->elapsed = elapsed; + + return r; +} + +static cairo_observation_record_t * +record_fill (cairo_observation_record_t *r, + cairo_surface_t *target, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip, + cairo_time_t elapsed) +{ + record_target (r, target); + + r->op = op; + r->source = classify_pattern (source, target); + r->mask = -1; + r->num_glyphs = -1; + r->path = classify_path (path, TRUE); + r->fill_rule = fill_rule; + r->tolerance = tolerance; + r->antialias = antialias; + r->clip = classify_clip (clip); + r->elapsed = elapsed; + + return r; +} + +static cairo_observation_record_t * +record_stroke (cairo_observation_record_t *r, + cairo_surface_t *target, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip, + cairo_time_t elapsed) +{ + record_target (r, target); + + r->op = op; + r->source = classify_pattern (source, target); + r->mask = -1; + r->num_glyphs = -1; + r->path = classify_path (path, FALSE); + r->fill_rule = -1; + r->tolerance = tolerance; + r->antialias = antialias; + r->clip = classify_clip (clip); + r->elapsed = elapsed; + + return r; +} + +static cairo_observation_record_t * +record_glyphs (cairo_observation_record_t *r, + cairo_surface_t *target, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip, + cairo_time_t elapsed) +{ + record_target (r, target); + + r->op = op; + r->source = classify_pattern (source, target); + r->mask = -1; + r->path = -1; + r->num_glyphs = num_glyphs; + r->fill_rule = -1; + r->tolerance = -1; + r->antialias = -1; + r->clip = classify_clip (clip); + r->elapsed = elapsed; + + return r; +} + +static void +add_record (cairo_observation_t *log, + cairo_observation_record_t *r) +{ + cairo_int_status_t status; + + r->index = log->record ? log->record->commands.num_elements : 0; + + status = _cairo_array_append (&log->timings, r); + assert (status == CAIRO_INT_STATUS_SUCCESS); +} + +static void +_cairo_surface_sync (cairo_surface_t *target, int x, int y) +{ + cairo_rectangle_int_t extents; + + extents.x = x; + extents.y = y; + extents.width = 1; + extents.height = 1; + + _cairo_surface_unmap_image (target, + _cairo_surface_map_to_image (target, + &extents)); +} + +static void +midpt (const cairo_composite_rectangles_t *extents, int *x, int *y) +{ + *x = extents->bounded.x + extents->bounded.width / 2; + *y = extents->bounded.y + extents->bounded.height / 2; +} + +static void +add_record_paint (cairo_observation_t *log, + cairo_surface_t *target, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip, + cairo_time_t elapsed) +{ + cairo_observation_record_t record; + cairo_int_status_t status; + + add_record (log, + record_paint (&record, target, op, source, clip, elapsed)); + + /* We have to bypass the high-level surface layer in case it tries to be + * too smart and discard operations; we need to record exactly what just + * happened on the target. + */ + if (log->record) { + status = log->record->base.backend->paint (&log->record->base, + op, source, clip); + assert (status == CAIRO_INT_STATUS_SUCCESS); + } + + if (_cairo_time_gt (elapsed, log->paint.slowest.elapsed)) + log->paint.slowest = record; + log->paint.elapsed = _cairo_time_add (log->paint.elapsed, elapsed); +} + +static cairo_int_status_t +_cairo_surface_observer_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_surface_observer_t *surface = abstract_surface; + cairo_device_observer_t *device = to_device (surface); + cairo_composite_rectangles_t composite; + cairo_int_status_t status; + cairo_time_t t; + int x, y; + + /* XXX device locking */ + + surface->log.paint.count++; + surface->log.paint.operators[op]++; + add_pattern (&surface->log.paint.source, source, surface->target); + add_clip (&surface->log.paint.clip, clip); + + device->log.paint.count++; + device->log.paint.operators[op]++; + add_pattern (&device->log.paint.source, source, surface->target); + add_clip (&device->log.paint.clip, clip); + + status = _cairo_composite_rectangles_init_for_paint (&composite, + surface->target, + op, source, + clip); + if (unlikely (status)) { + surface->log.paint.noop++; + device->log.paint.noop++; + return status; + } + + midpt (&composite, &x, &y); + + add_extents (&surface->log.paint.extents, &composite); + add_extents (&device->log.paint.extents, &composite); + _cairo_composite_rectangles_fini (&composite); + + t = _cairo_time_get (); + status = _cairo_surface_paint (surface->target, + op, source, + clip); + if (unlikely (status)) + return status; + + _cairo_surface_sync (surface->target, x, y); + t = _cairo_time_get_delta (t); + + add_record_paint (&surface->log, surface->target, op, source, clip, t); + add_record_paint (&device->log, surface->target, op, source, clip, t); + + do_callbacks (surface, &surface->paint_callbacks); + + return CAIRO_STATUS_SUCCESS; +} + +static void +add_record_mask (cairo_observation_t *log, + cairo_surface_t *target, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip, + cairo_time_t elapsed) +{ + cairo_observation_record_t record; + cairo_int_status_t status; + + add_record (log, + record_mask (&record, target, op, source, mask, clip, elapsed)); + + if (log->record) { + status = log->record->base.backend->mask (&log->record->base, + op, source, mask, clip); + assert (status == CAIRO_INT_STATUS_SUCCESS); + } + + if (_cairo_time_gt (elapsed, log->mask.slowest.elapsed)) + log->mask.slowest = record; + log->mask.elapsed = _cairo_time_add (log->mask.elapsed, elapsed); +} + +static cairo_int_status_t +_cairo_surface_observer_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_surface_observer_t *surface = abstract_surface; + cairo_device_observer_t *device = to_device (surface); + cairo_composite_rectangles_t composite; + cairo_int_status_t status; + cairo_time_t t; + int x, y; + + surface->log.mask.count++; + surface->log.mask.operators[op]++; + add_pattern (&surface->log.mask.source, source, surface->target); + add_pattern (&surface->log.mask.mask, mask, surface->target); + add_clip (&surface->log.mask.clip, clip); + + device->log.mask.count++; + device->log.mask.operators[op]++; + add_pattern (&device->log.mask.source, source, surface->target); + add_pattern (&device->log.mask.mask, mask, surface->target); + add_clip (&device->log.mask.clip, clip); + + status = _cairo_composite_rectangles_init_for_mask (&composite, + surface->target, + op, source, mask, + clip); + if (unlikely (status)) { + surface->log.mask.noop++; + device->log.mask.noop++; + return status; + } + + midpt (&composite, &x, &y); + + add_extents (&surface->log.mask.extents, &composite); + add_extents (&device->log.mask.extents, &composite); + _cairo_composite_rectangles_fini (&composite); + + t = _cairo_time_get (); + status = _cairo_surface_mask (surface->target, + op, source, mask, + clip); + if (unlikely (status)) + return status; + + _cairo_surface_sync (surface->target, x, y); + t = _cairo_time_get_delta (t); + + add_record_mask (&surface->log, + surface->target, op, source, mask, clip, + t); + add_record_mask (&device->log, + surface->target, op, source, mask, clip, + t); + + do_callbacks (surface, &surface->mask_callbacks); + + return CAIRO_STATUS_SUCCESS; +} + +static void +add_record_fill (cairo_observation_t *log, + cairo_surface_t *target, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip, + cairo_time_t elapsed) +{ + cairo_observation_record_t record; + cairo_int_status_t status; + + add_record (log, + record_fill (&record, + target, op, source, + path, fill_rule, tolerance, antialias, + clip, elapsed)); + + if (log->record) { + status = log->record->base.backend->fill (&log->record->base, + op, source, + path, fill_rule, + tolerance, antialias, + clip); + assert (status == CAIRO_INT_STATUS_SUCCESS); + } + + if (_cairo_time_gt (elapsed, log->fill.slowest.elapsed)) + log->fill.slowest = record; + log->fill.elapsed = _cairo_time_add (log->fill.elapsed, elapsed); +} + +static cairo_int_status_t +_cairo_surface_observer_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_surface_observer_t *surface = abstract_surface; + cairo_device_observer_t *device = to_device (surface); + cairo_composite_rectangles_t composite; + cairo_int_status_t status; + cairo_time_t t; + int x, y; + + surface->log.fill.count++; + surface->log.fill.operators[op]++; + surface->log.fill.fill_rule[fill_rule]++; + surface->log.fill.antialias[antialias]++; + add_pattern (&surface->log.fill.source, source, surface->target); + add_path (&surface->log.fill.path, path, TRUE); + add_clip (&surface->log.fill.clip, clip); + + device->log.fill.count++; + device->log.fill.operators[op]++; + device->log.fill.fill_rule[fill_rule]++; + device->log.fill.antialias[antialias]++; + add_pattern (&device->log.fill.source, source, surface->target); + add_path (&device->log.fill.path, path, TRUE); + add_clip (&device->log.fill.clip, clip); + + status = _cairo_composite_rectangles_init_for_fill (&composite, + surface->target, + op, source, path, + clip); + if (unlikely (status)) { + surface->log.fill.noop++; + device->log.fill.noop++; + return status; + } + + midpt (&composite, &x, &y); + + add_extents (&surface->log.fill.extents, &composite); + add_extents (&device->log.fill.extents, &composite); + _cairo_composite_rectangles_fini (&composite); + + t = _cairo_time_get (); + status = _cairo_surface_fill (surface->target, + op, source, path, + fill_rule, tolerance, antialias, + clip); + if (unlikely (status)) + return status; + + _cairo_surface_sync (surface->target, x, y); + t = _cairo_time_get_delta (t); + + add_record_fill (&surface->log, + surface->target, op, source, path, + fill_rule, tolerance, antialias, + clip, t); + + add_record_fill (&device->log, + surface->target, op, source, path, + fill_rule, tolerance, antialias, + clip, t); + + do_callbacks (surface, &surface->fill_callbacks); + + return CAIRO_STATUS_SUCCESS; +} + +static void +add_record_stroke (cairo_observation_t *log, + cairo_surface_t *target, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip, + cairo_time_t elapsed) +{ + cairo_observation_record_t record; + cairo_int_status_t status; + + add_record (log, + record_stroke (&record, + target, op, source, + path, style, ctm,ctm_inverse, + tolerance, antialias, + clip, elapsed)); + + if (log->record) { + status = log->record->base.backend->stroke (&log->record->base, + op, source, + path, style, ctm,ctm_inverse, + tolerance, antialias, + clip); + assert (status == CAIRO_INT_STATUS_SUCCESS); + } + + if (_cairo_time_gt (elapsed, log->stroke.slowest.elapsed)) + log->stroke.slowest = record; + log->stroke.elapsed = _cairo_time_add (log->stroke.elapsed, elapsed); +} + +static cairo_int_status_t +_cairo_surface_observer_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_surface_observer_t *surface = abstract_surface; + cairo_device_observer_t *device = to_device (surface); + cairo_composite_rectangles_t composite; + cairo_int_status_t status; + cairo_time_t t; + int x, y; + + surface->log.stroke.count++; + surface->log.stroke.operators[op]++; + surface->log.stroke.antialias[antialias]++; + surface->log.stroke.caps[style->line_cap]++; + surface->log.stroke.joins[style->line_join]++; + add_pattern (&surface->log.stroke.source, source, surface->target); + add_path (&surface->log.stroke.path, path, FALSE); + add_clip (&surface->log.stroke.clip, clip); + + device->log.stroke.count++; + device->log.stroke.operators[op]++; + device->log.stroke.antialias[antialias]++; + device->log.stroke.caps[style->line_cap]++; + device->log.stroke.joins[style->line_join]++; + add_pattern (&device->log.stroke.source, source, surface->target); + add_path (&device->log.stroke.path, path, FALSE); + add_clip (&device->log.stroke.clip, clip); + + status = _cairo_composite_rectangles_init_for_stroke (&composite, + surface->target, + op, source, + path, style, ctm, + clip); + if (unlikely (status)) { + surface->log.stroke.noop++; + device->log.stroke.noop++; + return status; + } + + midpt (&composite, &x, &y); + + add_extents (&surface->log.stroke.extents, &composite); + add_extents (&device->log.stroke.extents, &composite); + _cairo_composite_rectangles_fini (&composite); + + t = _cairo_time_get (); + status = _cairo_surface_stroke (surface->target, + op, source, path, + style, ctm, ctm_inverse, + tolerance, antialias, + clip); + if (unlikely (status)) + return status; + + _cairo_surface_sync (surface->target, x, y); + t = _cairo_time_get_delta (t); + + add_record_stroke (&surface->log, + surface->target, op, source, path, + style, ctm,ctm_inverse, + tolerance, antialias, + clip, t); + + add_record_stroke (&device->log, + surface->target, op, source, path, + style, ctm,ctm_inverse, + tolerance, antialias, + clip, t); + + do_callbacks (surface, &surface->stroke_callbacks); + + return CAIRO_STATUS_SUCCESS; +} + +static void +add_record_glyphs (cairo_observation_t *log, + cairo_surface_t *target, + cairo_operator_t op, + const cairo_pattern_t*source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip, + cairo_time_t elapsed) +{ + cairo_observation_record_t record; + cairo_int_status_t status; + + add_record (log, + record_glyphs (&record, + target, op, source, + glyphs, num_glyphs, scaled_font, + clip, elapsed)); + + if (log->record) { + status = log->record->base.backend->show_text_glyphs (&log->record->base, + op, source, + NULL, 0, + glyphs, num_glyphs, + NULL, 0, 0, + scaled_font, + clip); + assert (status == CAIRO_INT_STATUS_SUCCESS); + } + + if (_cairo_time_gt (elapsed, log->glyphs.slowest.elapsed)) + log->glyphs.slowest = record; + log->glyphs.elapsed = _cairo_time_add (log->glyphs.elapsed, elapsed); +} + +static cairo_int_status_t +_cairo_surface_observer_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_surface_observer_t *surface = abstract_surface; + cairo_device_observer_t *device = to_device (surface); + cairo_composite_rectangles_t composite; + cairo_int_status_t status; + cairo_glyph_t *dev_glyphs; + cairo_time_t t; + int x, y; + + surface->log.glyphs.count++; + surface->log.glyphs.operators[op]++; + add_pattern (&surface->log.glyphs.source, source, surface->target); + add_clip (&surface->log.glyphs.clip, clip); + + device->log.glyphs.count++; + device->log.glyphs.operators[op]++; + add_pattern (&device->log.glyphs.source, source, surface->target); + add_clip (&device->log.glyphs.clip, clip); + + status = _cairo_composite_rectangles_init_for_glyphs (&composite, + surface->target, + op, source, + scaled_font, + glyphs, num_glyphs, + clip, + NULL); + if (unlikely (status)) { + surface->log.glyphs.noop++; + device->log.glyphs.noop++; + return status; + } + + midpt (&composite, &x, &y); + + add_extents (&surface->log.glyphs.extents, &composite); + add_extents (&device->log.glyphs.extents, &composite); + _cairo_composite_rectangles_fini (&composite); + + /* XXX We have to copy the glyphs, because the backend is allowed to + * modify! */ + dev_glyphs = _cairo_malloc_ab (num_glyphs, sizeof (cairo_glyph_t)); + if (unlikely (dev_glyphs == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + memcpy (dev_glyphs, glyphs, num_glyphs * sizeof (cairo_glyph_t)); + + t = _cairo_time_get (); + status = _cairo_surface_show_text_glyphs (surface->target, op, source, + NULL, 0, + dev_glyphs, num_glyphs, + NULL, 0, 0, + scaled_font, + clip); + free (dev_glyphs); + if (unlikely (status)) + return status; + + _cairo_surface_sync (surface->target, x, y); + t = _cairo_time_get_delta (t); + + add_record_glyphs (&surface->log, + surface->target, op, source, + glyphs, num_glyphs, scaled_font, + clip, t); + + add_record_glyphs (&device->log, + surface->target, op, source, + glyphs, num_glyphs, scaled_font, + clip, t); + + do_callbacks (surface, &surface->glyphs_callbacks); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_surface_observer_flush (void *abstract_surface, unsigned flags) +{ + cairo_surface_observer_t *surface = abstract_surface; + + do_callbacks (surface, &surface->flush_callbacks); + return _cairo_surface_flush (surface->target, flags); +} + +static cairo_status_t +_cairo_surface_observer_mark_dirty (void *abstract_surface, + int x, int y, + int width, int height) +{ + cairo_surface_observer_t *surface = abstract_surface; + cairo_status_t status; + + status = CAIRO_STATUS_SUCCESS; + if (surface->target->backend->mark_dirty_rectangle) + status = surface->target->backend->mark_dirty_rectangle (surface->target, + x,y, width,height); + + return status; +} + +static cairo_int_status_t +_cairo_surface_observer_copy_page (void *abstract_surface) +{ + cairo_surface_observer_t *surface = abstract_surface; + cairo_status_t status; + + status = CAIRO_STATUS_SUCCESS; + if (surface->target->backend->copy_page) + status = surface->target->backend->copy_page (surface->target); + + return status; +} + +static cairo_int_status_t +_cairo_surface_observer_show_page (void *abstract_surface) +{ + cairo_surface_observer_t *surface = abstract_surface; + cairo_status_t status; + + status = CAIRO_STATUS_SUCCESS; + if (surface->target->backend->show_page) + status = surface->target->backend->show_page (surface->target); + + return status; +} + +static cairo_bool_t +_cairo_surface_observer_get_extents (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_surface_observer_t *surface = abstract_surface; + return _cairo_surface_get_extents (surface->target, extents); +} + +static void +_cairo_surface_observer_get_font_options (void *abstract_surface, + cairo_font_options_t *options) +{ + cairo_surface_observer_t *surface = abstract_surface; + + if (surface->target->backend->get_font_options != NULL) + surface->target->backend->get_font_options (surface->target, options); +} + +static cairo_surface_t * +_cairo_surface_observer_source (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_surface_observer_t *surface = abstract_surface; + return _cairo_surface_get_source (surface->target, extents); +} + +static cairo_status_t +_cairo_surface_observer_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + cairo_surface_observer_t *surface = abstract_surface; + + surface->log.num_sources_acquired++; + to_device (surface)->log.num_sources_acquired++; + + return _cairo_surface_acquire_source_image (surface->target, + image_out, image_extra); +} + +static void +_cairo_surface_observer_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *image_extra) +{ + cairo_surface_observer_t *surface = abstract_surface; + + _cairo_surface_release_source_image (surface->target, image, image_extra); +} + +static cairo_surface_t * +_cairo_surface_observer_snapshot (void *abstract_surface) +{ + cairo_surface_observer_t *surface = abstract_surface; + + /* XXX hook onto the snapshot so that we measure number of reads */ + + if (surface->target->backend->snapshot) + return surface->target->backend->snapshot (surface->target); + + return NULL; +} + +static cairo_t * +_cairo_surface_observer_create_context(void *target) +{ + cairo_surface_observer_t *surface = target; + + if (_cairo_surface_is_subsurface (&surface->base)) + surface = (cairo_surface_observer_t *) + _cairo_surface_subsurface_get_target (&surface->base); + + surface->log.num_contexts++; + to_device (surface)->log.num_contexts++; + + return surface->target->backend->create_context (target); +} + +static const cairo_surface_backend_t _cairo_surface_observer_backend = { + CAIRO_INTERNAL_SURFACE_TYPE_OBSERVER, + _cairo_surface_observer_finish, + + _cairo_surface_observer_create_context, + + _cairo_surface_observer_create_similar, + _cairo_surface_observer_create_similar_image, + _cairo_surface_observer_map_to_image, + _cairo_surface_observer_unmap_image, + + _cairo_surface_observer_source, + _cairo_surface_observer_acquire_source_image, + _cairo_surface_observer_release_source_image, + _cairo_surface_observer_snapshot, + + _cairo_surface_observer_copy_page, + _cairo_surface_observer_show_page, + + _cairo_surface_observer_get_extents, + _cairo_surface_observer_get_font_options, + + _cairo_surface_observer_flush, + _cairo_surface_observer_mark_dirty, + + _cairo_surface_observer_paint, + _cairo_surface_observer_mask, + _cairo_surface_observer_stroke, + _cairo_surface_observer_fill, + NULL, /* fill-stroke */ + _cairo_surface_observer_glyphs, +}; + +/** + * cairo_surface_create_observer: + * @target: an existing surface for which the observer will watch + * @mode: sets the mode of operation (normal vs. record) + * + * Create a new surface that exists solely to watch another is doing. In + * the process it will log operations and times, which are fast, which are + * slow, which are frequent, etc. + * + * The @mode parameter can be set to either %CAIRO_SURFACE_OBSERVER_NORMAL + * or %CAIRO_SURFACE_OBSERVER_RECORD_OPERATIONS, to control whether or not + * the internal observer should record operations. + * + * Return value: a pointer to the newly allocated surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if @other is already in an error state + * or any other error occurs. + * + * Since: 1.12 + **/ +cairo_surface_t * +cairo_surface_create_observer (cairo_surface_t *target, + cairo_surface_observer_mode_t mode) +{ + cairo_device_t *device; + cairo_surface_t *surface; + cairo_bool_t record; + + if (unlikely (target->status)) + return _cairo_surface_create_in_error (target->status); + if (unlikely (target->finished)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + record = mode & CAIRO_SURFACE_OBSERVER_RECORD_OPERATIONS; + device = _cairo_device_create_observer_internal (target->device, record); + if (unlikely (device->status)) + return _cairo_surface_create_in_error (device->status); + + surface = _cairo_surface_create_observer_internal (device, target); + cairo_device_destroy (device); + + return surface; +} + +static cairo_status_t +_cairo_surface_observer_add_callback (cairo_list_t *head, + cairo_surface_observer_callback_t func, + void *data) +{ + struct callback_list *cb; + + cb = _cairo_calloc (sizeof (*cb)); + if (unlikely (cb == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + cairo_list_add (&cb->link, head); + cb->func = func; + cb->data = data; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_surface_observer_add_paint_callback: + * @abstract_surface: a #cairo_surface_observer_t + * @func: callback function for paint operations + * @data: closure to pass to the callback + * + * Adds a callback for paint operations on the observed surface. + * + * Returns: the status of the surface + * + * Since: 1.12 + **/ +cairo_status_t +cairo_surface_observer_add_paint_callback (cairo_surface_t *abstract_surface, + cairo_surface_observer_callback_t func, + void *data) +{ + cairo_surface_observer_t *surface; + + if (unlikely (CAIRO_REFERENCE_COUNT_IS_INVALID (&abstract_surface->ref_count))) + return abstract_surface->status; + + if (! _cairo_surface_is_observer (abstract_surface)) + return _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + + surface = (cairo_surface_observer_t *)abstract_surface; + return _cairo_surface_observer_add_callback (&surface->paint_callbacks, + func, data); +} + +/** + * cairo_surface_observer_add_mask_callback: + * @abstract_surface: a #cairo_surface_observer_t + * @func: callback function for mask operations + * @data: closure to pass to the callback + * + * Adds a callback for mask operations on the observed surface. + * + * Returns: the status of the surface + * + * Since: 1.12 + **/ +cairo_status_t +cairo_surface_observer_add_mask_callback (cairo_surface_t *abstract_surface, + cairo_surface_observer_callback_t func, + void *data) +{ + cairo_surface_observer_t *surface; + + if (unlikely (CAIRO_REFERENCE_COUNT_IS_INVALID (&abstract_surface->ref_count))) + return abstract_surface->status; + + if (! _cairo_surface_is_observer (abstract_surface)) + return _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + + surface = (cairo_surface_observer_t *)abstract_surface; + return _cairo_surface_observer_add_callback (&surface->mask_callbacks, + func, data); +} + +/** + * cairo_surface_observer_add_fill_callback: + * @abstract_surface: a #cairo_surface_observer_t + * @func: callback function for fill operations + * @data: closure to pass to the callback + * + * Adds a callback for fill operations on the observed surface. + * + * Returns: the status of the surface + * + * Since: 1.12 + **/ +cairo_status_t +cairo_surface_observer_add_fill_callback (cairo_surface_t *abstract_surface, + cairo_surface_observer_callback_t func, + void *data) +{ + cairo_surface_observer_t *surface; + + if (unlikely (CAIRO_REFERENCE_COUNT_IS_INVALID (&abstract_surface->ref_count))) + return abstract_surface->status; + + if (! _cairo_surface_is_observer (abstract_surface)) + return _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + + surface = (cairo_surface_observer_t *)abstract_surface; + return _cairo_surface_observer_add_callback (&surface->fill_callbacks, + func, data); +} + +/** + * cairo_surface_observer_add_stroke_callback: + * @abstract_surface: a #cairo_surface_observer_t + * @func: callback function for stroke operations + * @data: closure to pass to the callback + * + * Adds a callback for stroke operations on the observed surface. + * + * Returns: the status of the surface + * + * Since: 1.12 + **/ +cairo_status_t +cairo_surface_observer_add_stroke_callback (cairo_surface_t *abstract_surface, + cairo_surface_observer_callback_t func, + void *data) +{ + cairo_surface_observer_t *surface; + + if (unlikely (CAIRO_REFERENCE_COUNT_IS_INVALID (&abstract_surface->ref_count))) + return abstract_surface->status; + + if (! _cairo_surface_is_observer (abstract_surface)) + return _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + + surface = (cairo_surface_observer_t *)abstract_surface; + return _cairo_surface_observer_add_callback (&surface->stroke_callbacks, + func, data); +} + +/** + * cairo_surface_observer_add_glyphs_callback: + * @abstract_surface: a #cairo_surface_observer_t + * @func: callback function for glyph operations + * @data: closure to pass to the callback + * + * Adds a callback for glyph operations on the observed surface. + * + * Returns: the status of the surface + * + * Since: 1.10 + **/ +cairo_status_t +cairo_surface_observer_add_glyphs_callback (cairo_surface_t *abstract_surface, + cairo_surface_observer_callback_t func, + void *data) +{ + cairo_surface_observer_t *surface; + + if (unlikely (CAIRO_REFERENCE_COUNT_IS_INVALID (&abstract_surface->ref_count))) + return abstract_surface->status; + + if (! _cairo_surface_is_observer (abstract_surface)) + return _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + + surface = (cairo_surface_observer_t *)abstract_surface; + return _cairo_surface_observer_add_callback (&surface->glyphs_callbacks, + func, data); +} + +/** + * cairo_surface_observer_add_flush_callback: + * @abstract_surface: a #cairo_surface_observer_t + * @func: callback for flush operations + * @data: closure to pass to the callback + * + * Adds a callback for flush operations on the observed surface. + * + * Returns: the status of the surface + * + * Since: 1.10 + **/ +cairo_status_t +cairo_surface_observer_add_flush_callback (cairo_surface_t *abstract_surface, + cairo_surface_observer_callback_t func, + void *data) +{ + cairo_surface_observer_t *surface; + + if (unlikely (CAIRO_REFERENCE_COUNT_IS_INVALID (&abstract_surface->ref_count))) + return abstract_surface->status; + + if (! _cairo_surface_is_observer (abstract_surface)) + return _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + + surface = (cairo_surface_observer_t *)abstract_surface; + return _cairo_surface_observer_add_callback (&surface->flush_callbacks, + func, data); +} + +/** + * cairo_surface_observer_add_finish_callback: + * @abstract_surface: a #cairo_surface_observer_t + * @func: callback function for the finish operation + * @data: closure to pass to the callback + * + * Adds a callback for finish operations on the observed surface. + * + * Returns: the status of the surface + * + * Since: 1.10 + **/ +cairo_status_t +cairo_surface_observer_add_finish_callback (cairo_surface_t *abstract_surface, + cairo_surface_observer_callback_t func, + void *data) +{ + cairo_surface_observer_t *surface; + + if (unlikely (CAIRO_REFERENCE_COUNT_IS_INVALID (&abstract_surface->ref_count))) + return abstract_surface->status; + + if (! _cairo_surface_is_observer (abstract_surface)) + return _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + + surface = (cairo_surface_observer_t *)abstract_surface; + return _cairo_surface_observer_add_callback (&surface->finish_callbacks, + func, data); +} + +static void +print_extents (cairo_output_stream_t *stream, const struct extents *e) +{ + _cairo_output_stream_printf (stream, + " extents: total %g, avg %g [unbounded %d]\n", + e->area.sum, + e->area.sum / e->area.count, + e->unbounded); +} + +static inline int ordercmp (int a, int b, const unsigned int *array) +{ + /* high to low */ + return array[b] - array[a]; +} +CAIRO_COMBSORT_DECLARE_WITH_DATA (sort_order, int, ordercmp) + +static void +print_array (cairo_output_stream_t *stream, + const unsigned int *array, + const char **names, + int count) +{ + int order[64]; + int i, j; + + assert (count < ARRAY_LENGTH (order)); + for (i = j = 0; i < count; i++) { + if (array[i] != 0) + order[j++] = i; + } + + sort_order (order, j, (void *)array); + for (i = 0; i < j; i++) + _cairo_output_stream_printf (stream, " %d %s%s", + array[order[i]], names[order[i]], + i < j -1 ? "," : ""); +} + +static const char *operator_names[] = { + "CLEAR", /* CAIRO_OPERATOR_CLEAR */ + + "SOURCE", /* CAIRO_OPERATOR_SOURCE */ + "OVER", /* CAIRO_OPERATOR_OVER */ + "IN", /* CAIRO_OPERATOR_IN */ + "OUT", /* CAIRO_OPERATOR_OUT */ + "ATOP", /* CAIRO_OPERATOR_ATOP */ + + "DEST", /* CAIRO_OPERATOR_DEST */ + "DEST_OVER", /* CAIRO_OPERATOR_DEST_OVER */ + "DEST_IN", /* CAIRO_OPERATOR_DEST_IN */ + "DEST_OUT", /* CAIRO_OPERATOR_DEST_OUT */ + "DEST_ATOP", /* CAIRO_OPERATOR_DEST_ATOP */ + + "XOR", /* CAIRO_OPERATOR_XOR */ + "ADD", /* CAIRO_OPERATOR_ADD */ + "SATURATE", /* CAIRO_OPERATOR_SATURATE */ + + "MULTIPLY", /* CAIRO_OPERATOR_MULTIPLY */ + "SCREEN", /* CAIRO_OPERATOR_SCREEN */ + "OVERLAY", /* CAIRO_OPERATOR_OVERLAY */ + "DARKEN", /* CAIRO_OPERATOR_DARKEN */ + "LIGHTEN", /* CAIRO_OPERATOR_LIGHTEN */ + "DODGE", /* CAIRO_OPERATOR_COLOR_DODGE */ + "BURN", /* CAIRO_OPERATOR_COLOR_BURN */ + "HARD_LIGHT", /* CAIRO_OPERATOR_HARD_LIGHT */ + "SOFT_LIGHT", /* CAIRO_OPERATOR_SOFT_LIGHT */ + "DIFFERENCE", /* CAIRO_OPERATOR_DIFFERENCE */ + "EXCLUSION", /* CAIRO_OPERATOR_EXCLUSION */ + "HSL_HUE", /* CAIRO_OPERATOR_HSL_HUE */ + "HSL_SATURATION", /* CAIRO_OPERATOR_HSL_SATURATION */ + "HSL_COLOR", /* CAIRO_OPERATOR_HSL_COLOR */ + "HSL_LUMINOSITY" /* CAIRO_OPERATOR_HSL_LUMINOSITY */ +}; +static void +print_operators (cairo_output_stream_t *stream, unsigned int *array) +{ + _cairo_output_stream_printf (stream, " op:"); + print_array (stream, array, operator_names, NUM_OPERATORS); + _cairo_output_stream_printf (stream, "\n"); +} + +static const char *fill_rule_names[] = { + "non-zero", + "even-odd", +}; +static void +print_fill_rule (cairo_output_stream_t *stream, unsigned int *array) +{ + _cairo_output_stream_printf (stream, " fill rule:"); + print_array (stream, array, fill_rule_names, ARRAY_LENGTH(fill_rule_names)); + _cairo_output_stream_printf (stream, "\n"); +} + +static const char *cap_names[] = { + "butt", /* CAIRO_LINE_CAP_BUTT */ + "round", /* CAIRO_LINE_CAP_ROUND */ + "square" /* CAIRO_LINE_CAP_SQUARE */ +}; +static void +print_line_caps (cairo_output_stream_t *stream, unsigned int *array) +{ + _cairo_output_stream_printf (stream, " caps:"); + print_array (stream, array, cap_names, NUM_CAPS); + _cairo_output_stream_printf (stream, "\n"); +} + +static const char *join_names[] = { + "miter", /* CAIRO_LINE_JOIN_MITER */ + "round", /* CAIRO_LINE_JOIN_ROUND */ + "bevel", /* CAIRO_LINE_JOIN_BEVEL */ +}; +static void +print_line_joins (cairo_output_stream_t *stream, unsigned int *array) +{ + _cairo_output_stream_printf (stream, " joins:"); + print_array (stream, array, join_names, NUM_JOINS); + _cairo_output_stream_printf (stream, "\n"); +} + +static const char *antialias_names[] = { + "default", + "none", + "gray", + "subpixel", + "fast", + "good", + "best" +}; +static void +print_antialias (cairo_output_stream_t *stream, unsigned int *array) +{ + _cairo_output_stream_printf (stream, " antialias:"); + print_array (stream, array, antialias_names, NUM_ANTIALIAS); + _cairo_output_stream_printf (stream, "\n"); +} + +static const char *pattern_names[] = { + "native", + "record", + "other surface", + "solid", + "linear", + "radial", + "mesh", + "raster" +}; +static void +print_pattern (cairo_output_stream_t *stream, + const char *name, + const struct pattern *p) +{ + _cairo_output_stream_printf (stream, " %s:", name); + print_array (stream, p->type, pattern_names, ARRAY_LENGTH (pattern_names)); + _cairo_output_stream_printf (stream, "\n"); +} + +static const char *path_names[] = { + "empty", + "pixel-aligned", + "rectliinear", + "straight", + "curved", +}; +static void +print_path (cairo_output_stream_t *stream, + const struct path *p) +{ + _cairo_output_stream_printf (stream, " path:"); + print_array (stream, p->type, path_names, ARRAY_LENGTH (path_names)); + _cairo_output_stream_printf (stream, "\n"); +} + +static const char *clip_names[] = { + "none", + "region", + "boxes", + "single path", + "polygon", + "general", +}; +static void +print_clip (cairo_output_stream_t *stream, const struct clip *c) +{ + _cairo_output_stream_printf (stream, " clip:"); + print_array (stream, c->type, clip_names, ARRAY_LENGTH (clip_names)); + _cairo_output_stream_printf (stream, "\n"); +} + +static void +print_record (cairo_output_stream_t *stream, + cairo_observation_record_t *r) +{ + _cairo_output_stream_printf (stream, " op: %s\n", operator_names[r->op]); + _cairo_output_stream_printf (stream, " source: %s\n", + pattern_names[r->source]); + if (r->mask != -1) + _cairo_output_stream_printf (stream, " mask: %s\n", + pattern_names[r->mask]); + if (r->num_glyphs != -1) + _cairo_output_stream_printf (stream, " num_glyphs: %d\n", + r->num_glyphs); + if (r->path != -1) + _cairo_output_stream_printf (stream, " path: %s\n", + path_names[r->path]); + if (r->fill_rule != -1) + _cairo_output_stream_printf (stream, " fill rule: %s\n", + fill_rule_names[r->fill_rule]); + if (r->antialias != -1) + _cairo_output_stream_printf (stream, " antialias: %s\n", + antialias_names[r->antialias]); + _cairo_output_stream_printf (stream, " clip: %s\n", clip_names[r->clip]); + _cairo_output_stream_printf (stream, " elapsed: %f ns\n", + _cairo_time_to_ns (r->elapsed)); +} + +static double percent (cairo_time_t a, cairo_time_t b) +{ + /* Fake %.1f */ + return _cairo_round (_cairo_time_to_s (a) * 1000 / + _cairo_time_to_s (b)) / 10; +} + +static cairo_bool_t +replay_record (cairo_observation_t *log, + cairo_observation_record_t *r, + cairo_device_t *script) +{ +#if CAIRO_HAS_SCRIPT_SURFACE + cairo_surface_t *surface; + cairo_int_status_t status; + + if (log->record == NULL || script == NULL) + return FALSE; + + surface = cairo_script_surface_create (script, + r->target_content, + r->target_width, + r->target_height); + status = + _cairo_recording_surface_replay_one (log->record, r->index, surface); + cairo_surface_destroy (surface); + + assert (status == CAIRO_INT_STATUS_SUCCESS); + + return TRUE; +#else + return FALSE; +#endif +} + +static cairo_time_t +_cairo_observation_total_elapsed (cairo_observation_t *log) +{ + cairo_time_t total; + + total = log->paint.elapsed; + total = _cairo_time_add (total, log->mask.elapsed); + total = _cairo_time_add (total, log->fill.elapsed); + total = _cairo_time_add (total, log->stroke.elapsed); + total = _cairo_time_add (total, log->glyphs.elapsed); + + return total; +} + +static void +_cairo_observation_print (cairo_output_stream_t *stream, + cairo_observation_t *log) +{ + cairo_device_t *script; + cairo_time_t total; + +#if CAIRO_HAS_SCRIPT_SURFACE + script = _cairo_script_context_create_internal (stream); + _cairo_script_context_attach_snapshots (script, FALSE); +#else + script = NULL; +#endif + + total = _cairo_observation_total_elapsed (log); + + _cairo_output_stream_printf (stream, "elapsed: %f\n", + _cairo_time_to_ns (total)); + _cairo_output_stream_printf (stream, "surfaces: %d\n", + log->num_surfaces); + _cairo_output_stream_printf (stream, "contexts: %d\n", + log->num_contexts); + _cairo_output_stream_printf (stream, "sources acquired: %d\n", + log->num_sources_acquired); + + + _cairo_output_stream_printf (stream, "paint: count %d [no-op %d], elapsed %f [%f%%]\n", + log->paint.count, log->paint.noop, + _cairo_time_to_ns (log->paint.elapsed), + percent (log->paint.elapsed, total)); + if (log->paint.count) { + print_extents (stream, &log->paint.extents); + print_operators (stream, log->paint.operators); + print_pattern (stream, "source", &log->paint.source); + print_clip (stream, &log->paint.clip); + + _cairo_output_stream_printf (stream, "slowest paint: %f%%\n", + percent (log->paint.slowest.elapsed, + log->paint.elapsed)); + print_record (stream, &log->paint.slowest); + + _cairo_output_stream_printf (stream, "\n"); + if (replay_record (log, &log->paint.slowest, script)) + _cairo_output_stream_printf (stream, "\n\n"); + } + + _cairo_output_stream_printf (stream, "mask: count %d [no-op %d], elapsed %f [%f%%]\n", + log->mask.count, log->mask.noop, + _cairo_time_to_ns (log->mask.elapsed), + percent (log->mask.elapsed, total)); + if (log->mask.count) { + print_extents (stream, &log->mask.extents); + print_operators (stream, log->mask.operators); + print_pattern (stream, "source", &log->mask.source); + print_pattern (stream, "mask", &log->mask.mask); + print_clip (stream, &log->mask.clip); + + _cairo_output_stream_printf (stream, "slowest mask: %f%%\n", + percent (log->mask.slowest.elapsed, + log->mask.elapsed)); + print_record (stream, &log->mask.slowest); + + _cairo_output_stream_printf (stream, "\n"); + if (replay_record (log, &log->mask.slowest, script)) + _cairo_output_stream_printf (stream, "\n\n"); + } + + _cairo_output_stream_printf (stream, "fill: count %d [no-op %d], elaspsed %f [%f%%]\n", + log->fill.count, log->fill.noop, + _cairo_time_to_ns (log->fill.elapsed), + percent (log->fill.elapsed, total)); + if (log->fill.count) { + print_extents (stream, &log->fill.extents); + print_operators (stream, log->fill.operators); + print_pattern (stream, "source", &log->fill.source); + print_path (stream, &log->fill.path); + print_fill_rule (stream, log->fill.fill_rule); + print_antialias (stream, log->fill.antialias); + print_clip (stream, &log->fill.clip); + + _cairo_output_stream_printf (stream, "slowest fill: %f%%\n", + percent (log->fill.slowest.elapsed, + log->fill.elapsed)); + print_record (stream, &log->fill.slowest); + + _cairo_output_stream_printf (stream, "\n"); + if (replay_record (log, &log->fill.slowest, script)) + _cairo_output_stream_printf (stream, "\n\n"); + } + + _cairo_output_stream_printf (stream, "stroke: count %d [no-op %d], elapsed %f [%f%%]\n", + log->stroke.count, log->stroke.noop, + _cairo_time_to_ns (log->stroke.elapsed), + percent (log->stroke.elapsed, total)); + if (log->stroke.count) { + print_extents (stream, &log->stroke.extents); + print_operators (stream, log->stroke.operators); + print_pattern (stream, "source", &log->stroke.source); + print_path (stream, &log->stroke.path); + print_antialias (stream, log->stroke.antialias); + print_line_caps (stream, log->stroke.caps); + print_line_joins (stream, log->stroke.joins); + print_clip (stream, &log->stroke.clip); + + _cairo_output_stream_printf (stream, "slowest stroke: %f%%\n", + percent (log->stroke.slowest.elapsed, + log->stroke.elapsed)); + print_record (stream, &log->stroke.slowest); + + _cairo_output_stream_printf (stream, "\n"); + if (replay_record (log, &log->stroke.slowest, script)) + _cairo_output_stream_printf (stream, "\n\n"); + } + + _cairo_output_stream_printf (stream, "glyphs: count %d [no-op %d], elasped %f [%f%%]\n", + log->glyphs.count, log->glyphs.noop, + _cairo_time_to_ns (log->glyphs.elapsed), + percent (log->glyphs.elapsed, total)); + if (log->glyphs.count) { + print_extents (stream, &log->glyphs.extents); + print_operators (stream, log->glyphs.operators); + print_pattern (stream, "source", &log->glyphs.source); + print_clip (stream, &log->glyphs.clip); + + _cairo_output_stream_printf (stream, "slowest glyphs: %f%%\n", + percent (log->glyphs.slowest.elapsed, + log->glyphs.elapsed)); + print_record (stream, &log->glyphs.slowest); + + _cairo_output_stream_printf (stream, "\n"); + if (replay_record (log, &log->glyphs.slowest, script)) + _cairo_output_stream_printf (stream, "\n\n"); + } + + cairo_device_destroy (script); +} + +/** + * cairo_surface_observer_print: + * @abstract_surface: a #cairo_surface_observer_t + * @write_func: callback for writing on a stream + * @closure: data to pass to @write_func + * + * Prints the observer log using the given callback. + * + * Returns: the status of the print operation + * + * Since: 1.12 + **/ +cairo_status_t +cairo_surface_observer_print (cairo_surface_t *abstract_surface, + cairo_write_func_t write_func, + void *closure) +{ + cairo_output_stream_t *stream; + cairo_surface_observer_t *surface; + + if (unlikely (abstract_surface->status)) + return abstract_surface->status; + + if (unlikely (! _cairo_surface_is_observer (abstract_surface))) + return _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + + surface = (cairo_surface_observer_t *) abstract_surface; + + stream = _cairo_output_stream_create (write_func, NULL, closure); + _cairo_observation_print (stream, &surface->log); + return _cairo_output_stream_destroy (stream); +} + +/** + * cairo_surface_observer_elapsed: + * @abstract_surface: a #cairo_surface_observer_t + * + * Returns the total observation time. + * + * Returns: the elapsed time, in nanoseconds + * + * Since: 1.12 + **/ +double +cairo_surface_observer_elapsed (cairo_surface_t *abstract_surface) +{ + cairo_surface_observer_t *surface; + + if (unlikely (CAIRO_REFERENCE_COUNT_IS_INVALID (&abstract_surface->ref_count))) + return -1; + + if (! _cairo_surface_is_observer (abstract_surface)) + return -1; + + surface = (cairo_surface_observer_t *) abstract_surface; + return _cairo_time_to_ns (_cairo_observation_total_elapsed (&surface->log)); +} + +/** + * cairo_device_observer_print: + * @abstract_device: the observed #cairo_device_t + * @write_func: the write function + * @closure: data to pass to the @write_func + * + * Prints the device log using the given function. + * + * Returns: the status after the operation + * + * Since: 1.12 + **/ +cairo_status_t +cairo_device_observer_print (cairo_device_t *abstract_device, + cairo_write_func_t write_func, + void *closure) +{ + cairo_output_stream_t *stream; + cairo_device_observer_t *device; + + if (unlikely (abstract_device->status)) + return abstract_device->status; + + if (unlikely (! _cairo_device_is_observer (abstract_device))) + return _cairo_error (CAIRO_STATUS_DEVICE_TYPE_MISMATCH); + + device = (cairo_device_observer_t *) abstract_device; + + stream = _cairo_output_stream_create (write_func, NULL, closure); + _cairo_observation_print (stream, &device->log); + return _cairo_output_stream_destroy (stream); +} + +/** + * cairo_device_observer_elapsed: + * @abstract_device: the observed #cairo_device_t + * + * Returns the total elapsed time of the observation. + * + * Returns: the elapsed time, in nanoseconds. + * + * Since: 1.12 + **/ +double +cairo_device_observer_elapsed (cairo_device_t *abstract_device) +{ + cairo_device_observer_t *device; + + if (unlikely (CAIRO_REFERENCE_COUNT_IS_INVALID (&abstract_device->ref_count))) + return -1; + + if (! _cairo_device_is_observer (abstract_device)) + return -1; + + device = (cairo_device_observer_t *) abstract_device; + return _cairo_time_to_ns (_cairo_observation_total_elapsed (&device->log)); +} + +/** + * cairo_device_observer_paint_elapsed: + * @abstract_device: the observed #cairo_device_t + * + * Returns the elapsed time of the paint operations. + * + * Returns: the elapsed time, in nanoseconds. + * + * Since: 1.12 + **/ +double +cairo_device_observer_paint_elapsed (cairo_device_t *abstract_device) +{ + cairo_device_observer_t *device; + + if (unlikely (CAIRO_REFERENCE_COUNT_IS_INVALID (&abstract_device->ref_count))) + return -1; + + if (! _cairo_device_is_observer (abstract_device)) + return -1; + + device = (cairo_device_observer_t *) abstract_device; + return _cairo_time_to_ns (device->log.paint.elapsed); +} + +/** + * cairo_device_observer_mask_elapsed: + * @abstract_device: the observed #cairo_device_t + * + * Returns the elapsed time of the mask operations. + * + * Returns: the elapsed time, in nanoseconds + * + * Since: 1.12 + **/ +double +cairo_device_observer_mask_elapsed (cairo_device_t *abstract_device) +{ + cairo_device_observer_t *device; + + if (unlikely (CAIRO_REFERENCE_COUNT_IS_INVALID (&abstract_device->ref_count))) + return -1; + + if (! _cairo_device_is_observer (abstract_device)) + return -1; + + device = (cairo_device_observer_t *) abstract_device; + return _cairo_time_to_ns (device->log.mask.elapsed); +} + +/** + * cairo_device_observer_fill_elapsed: + * @abstract_device: the observed #cairo_device_t + * + * Returns the elapsed time of the fill operations. + * + * Returns: the elapsed time, in nanoseconds. + * + * Since: 1.12 + **/ +double +cairo_device_observer_fill_elapsed (cairo_device_t *abstract_device) +{ + cairo_device_observer_t *device; + + if (unlikely (CAIRO_REFERENCE_COUNT_IS_INVALID (&abstract_device->ref_count))) + return -1; + + if (! _cairo_device_is_observer (abstract_device)) + return -1; + + device = (cairo_device_observer_t *) abstract_device; + return _cairo_time_to_ns (device->log.fill.elapsed); +} + +/** + * cairo_device_observer_stroke_elapsed: + * @abstract_device: the observed #cairo_device_t + * + * Returns the elapsed time of the stroke operations. + * + * Returns: the elapsed time, in nanoseconds. + * + * Since: 1.12 + **/ +double +cairo_device_observer_stroke_elapsed (cairo_device_t *abstract_device) +{ + cairo_device_observer_t *device; + + if (unlikely (CAIRO_REFERENCE_COUNT_IS_INVALID (&abstract_device->ref_count))) + return -1; + + if (! _cairo_device_is_observer (abstract_device)) + return -1; + + device = (cairo_device_observer_t *) abstract_device; + return _cairo_time_to_ns (device->log.stroke.elapsed); +} + +/** + * cairo_device_observer_glyphs_elapsed: + * @abstract_device: the observed #cairo_device_t + * + * Returns the elapsed time of the glyph operations. + * + * Returns: the elapsed time, in nanoseconds. + * + * Since: 1.12 + **/ +double +cairo_device_observer_glyphs_elapsed (cairo_device_t *abstract_device) +{ + cairo_device_observer_t *device; + + if (unlikely (CAIRO_REFERENCE_COUNT_IS_INVALID (&abstract_device->ref_count))) + return -1; + + if (! _cairo_device_is_observer (abstract_device)) + return -1; + + device = (cairo_device_observer_t *) abstract_device; + return _cairo_time_to_ns (device->log.glyphs.elapsed); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-offset-private.h b/local/recipes/libs/cairo/source/src/cairo-surface-offset-private.h new file mode 100644 index 0000000000..310ba5691c --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-offset-private.h @@ -0,0 +1,95 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_SURFACE_OFFSET_PRIVATE_H +#define CAIRO_SURFACE_OFFSET_PRIVATE_H + +#include "cairo-types-private.h" + +CAIRO_BEGIN_DECLS + +cairo_private cairo_status_t +_cairo_surface_offset_paint (cairo_surface_t *target, + int x, int y, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_offset_mask (cairo_surface_t *target, + int x, int y, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_offset_stroke (cairo_surface_t *surface, + int x, int y, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_offset_fill (cairo_surface_t *surface, + int x, int y, + cairo_operator_t op, + const cairo_pattern_t*source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_offset_glyphs (cairo_surface_t *surface, + int x, int y, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_clip_t *clip); + +#endif /* CAIRO_SURFACE_OFFSET_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-offset.c b/local/recipes/libs/cairo/source/src/cairo-surface-offset.c new file mode 100644 index 0000000000..98f57f2980 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-offset.c @@ -0,0 +1,308 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * Copyright © 2007 Adrian Johnson + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-clip-inline.h" +#include "cairo-error-private.h" +#include "cairo-pattern-private.h" +#include "cairo-surface-offset-private.h" + +/* A collection of routines to facilitate drawing to an alternate surface. */ + +static void +_copy_transformed_pattern (cairo_pattern_t *pattern, + const cairo_pattern_t *original, + const cairo_matrix_t *ctm_inverse) +{ + _cairo_pattern_init_static_copy (pattern, original); + + if (! _cairo_matrix_is_identity (ctm_inverse)) + _cairo_pattern_transform (pattern, ctm_inverse); +} + +cairo_status_t +_cairo_surface_offset_paint (cairo_surface_t *target, + int x, int y, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_clip_t *dev_clip = (cairo_clip_t *) clip; + cairo_pattern_union_t source_copy; + + if (unlikely (target->status)) + return target->status; + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + if (x | y) { + cairo_matrix_t m; + + dev_clip = _cairo_clip_copy_with_translation (clip, -x, -y); + + cairo_matrix_init_translate (&m, x, y); + _copy_transformed_pattern (&source_copy.base, source, &m); + source = &source_copy.base; + } + + status = _cairo_surface_paint (target, op, source, dev_clip); + + if (dev_clip != clip) + _cairo_clip_destroy (dev_clip); + + return status; +} + +cairo_status_t +_cairo_surface_offset_mask (cairo_surface_t *target, + int x, int y, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_clip_t *dev_clip = (cairo_clip_t *) clip; + cairo_pattern_union_t source_copy; + cairo_pattern_union_t mask_copy; + + if (unlikely (target->status)) + return target->status; + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + if (x | y) { + cairo_matrix_t m; + + dev_clip = _cairo_clip_copy_with_translation (clip, -x, -y); + + cairo_matrix_init_translate (&m, x, y); + _copy_transformed_pattern (&source_copy.base, source, &m); + _copy_transformed_pattern (&mask_copy.base, mask, &m); + source = &source_copy.base; + mask = &mask_copy.base; + } + + status = _cairo_surface_mask (target, op, + source, mask, + dev_clip); + + if (dev_clip != clip) + _cairo_clip_destroy (dev_clip); + + return status; +} + +cairo_status_t +_cairo_surface_offset_stroke (cairo_surface_t *surface, + int x, int y, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t*stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_path_fixed_t path_copy, *dev_path = (cairo_path_fixed_t *) path; + cairo_clip_t *dev_clip = (cairo_clip_t *) clip; + cairo_matrix_t dev_ctm = *ctm; + cairo_matrix_t dev_ctm_inverse = *ctm_inverse; + cairo_pattern_union_t source_copy; + cairo_status_t status; + + if (unlikely (surface->status)) + return surface->status; + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + if (x | y) { + cairo_matrix_t m; + + dev_clip = _cairo_clip_copy_with_translation (clip, -x, -y); + + status = _cairo_path_fixed_init_copy (&path_copy, dev_path); + if (unlikely (status)) + goto FINISH; + + _cairo_path_fixed_translate (&path_copy, + _cairo_fixed_from_int (-x), + _cairo_fixed_from_int (-y)); + dev_path = &path_copy; + + cairo_matrix_init_translate (&m, -x, -y); + cairo_matrix_multiply (&dev_ctm, &dev_ctm, &m); + + cairo_matrix_init_translate (&m, x, y); + _copy_transformed_pattern (&source_copy.base, source, &m); + source = &source_copy.base; + cairo_matrix_multiply (&dev_ctm_inverse, &m, &dev_ctm_inverse); + } + + status = _cairo_surface_stroke (surface, op, source, + dev_path, stroke_style, + &dev_ctm, &dev_ctm_inverse, + tolerance, antialias, + dev_clip); + +FINISH: + if (dev_path != path) + _cairo_path_fixed_fini (dev_path); + if (dev_clip != clip) + _cairo_clip_destroy (dev_clip); + + return status; +} + +cairo_status_t +_cairo_surface_offset_fill (cairo_surface_t *surface, + int x, int y, + cairo_operator_t op, + const cairo_pattern_t*source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_path_fixed_t path_copy, *dev_path = (cairo_path_fixed_t *) path; + cairo_clip_t *dev_clip = (cairo_clip_t *) clip; + cairo_pattern_union_t source_copy; + + if (unlikely (surface->status)) + return surface->status; + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + if (x | y) { + cairo_matrix_t m; + + dev_clip = _cairo_clip_copy_with_translation (clip, -x, -y); + + status = _cairo_path_fixed_init_copy (&path_copy, dev_path); + if (unlikely (status)) + goto FINISH; + + _cairo_path_fixed_translate (&path_copy, + _cairo_fixed_from_int (-x), + _cairo_fixed_from_int (-y)); + dev_path = &path_copy; + + cairo_matrix_init_translate (&m, x, y); + _copy_transformed_pattern (&source_copy.base, source, &m); + source = &source_copy.base; + } + + status = _cairo_surface_fill (surface, op, source, + dev_path, fill_rule, + tolerance, antialias, + dev_clip); + +FINISH: + if (dev_path != path) + _cairo_path_fixed_fini (dev_path); + if (dev_clip != clip) + _cairo_clip_destroy (dev_clip); + + return status; +} + +cairo_status_t +_cairo_surface_offset_glyphs (cairo_surface_t *surface, + int x, int y, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_clip_t *dev_clip = (cairo_clip_t *) clip; + cairo_pattern_union_t source_copy; + cairo_glyph_t *dev_glyphs; + int i; + + if (unlikely (surface->status)) + return surface->status; + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + dev_glyphs = _cairo_malloc_ab (num_glyphs, sizeof (cairo_glyph_t)); + if (dev_glyphs == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memcpy (dev_glyphs, glyphs, sizeof (cairo_glyph_t) * num_glyphs); + + if (x | y) { + cairo_matrix_t m; + + dev_clip = _cairo_clip_copy_with_translation (clip, -x, -y); + + cairo_matrix_init_translate (&m, x, y); + _copy_transformed_pattern (&source_copy.base, source, &m); + source = &source_copy.base; + + for (i = 0; i < num_glyphs; i++) { + dev_glyphs[i].x -= x; + dev_glyphs[i].y -= y; + } + } + + status = _cairo_surface_show_text_glyphs (surface, op, source, + NULL, 0, + dev_glyphs, num_glyphs, + NULL, 0, 0, + scaled_font, + dev_clip); + + if (dev_clip != clip) + _cairo_clip_destroy (dev_clip); + free (dev_glyphs); + + return status; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-private.h b/local/recipes/libs/cairo/source/src/cairo-surface-private.h new file mode 100644 index 0000000000..35b559f9c6 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-private.h @@ -0,0 +1,125 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_SURFACE_PRIVATE_H +#define CAIRO_SURFACE_PRIVATE_H + +#include "cairo.h" + +#include "cairo-types-private.h" +#include "cairo-list-private.h" +#include "cairo-reference-count-private.h" +#include "cairo-clip-private.h" +#include "cairo-surface-backend-private.h" + +typedef void (*cairo_surface_func_t) (cairo_surface_t *); + +struct _cairo_surface { + const cairo_surface_backend_t *backend; + cairo_device_t *device; + + /* We allow surfaces to override the backend->type by shoving something + * else into surface->type. This is for "wrapper" surfaces that want to + * hide their internal type from the user-level API. */ + cairo_surface_type_t type; + + cairo_content_t content; + + cairo_reference_count_t ref_count; + cairo_status_t status; + unsigned int unique_id; + unsigned int serial; + cairo_damage_t *damage; + + unsigned _finishing : 1; + unsigned finished : 1; + unsigned is_clear : 1; + unsigned has_font_options : 1; + unsigned owns_device : 1; + unsigned is_vector : 1; + + cairo_user_data_array_t user_data; + cairo_user_data_array_t mime_data; + + cairo_matrix_t device_transform; + cairo_matrix_t device_transform_inverse; + cairo_list_t device_transform_observers; + + /* The actual resolution of the device, in dots per inch. */ + double x_resolution; + double y_resolution; + + /* The resolution that should be used when generating image-based + * fallback; generally only used by the analysis/paginated + * surfaces + */ + double x_fallback_resolution; + double y_fallback_resolution; + + /* A "snapshot" surface is immutable. See _cairo_surface_snapshot. */ + cairo_surface_t *snapshot_of; + cairo_surface_func_t snapshot_detach; + /* current snapshots of this surface*/ + cairo_list_t snapshots; + /* place upon snapshot list */ + cairo_list_t snapshot; + + /* + * Surface font options, falling back to backend's default options, + * and set using _cairo_surface_set_font_options(), and propagated by + * cairo_surface_create_similar(). + */ + cairo_font_options_t font_options; + + cairo_pattern_t *foreground_source; + cairo_bool_t foreground_used; +}; + +cairo_private cairo_surface_t * +_cairo_surface_create_in_error (cairo_status_t status); + +cairo_private cairo_surface_t * +_cairo_int_surface_create_in_error (cairo_int_status_t status); + +cairo_private cairo_surface_t * +_cairo_surface_get_source (cairo_surface_t *surface, + cairo_rectangle_int_t *extents); + +cairo_private cairo_status_t +_cairo_surface_flush (cairo_surface_t *surface, unsigned flags); + +#endif /* CAIRO_SURFACE_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-snapshot-inline.h b/local/recipes/libs/cairo/source/src/cairo-surface-snapshot-inline.h new file mode 100644 index 0000000000..bf89c772b4 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-snapshot-inline.h @@ -0,0 +1,67 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Intel Corporation. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_SURFACE_SNAPSHOT_INLINE_H +#define CAIRO_SURFACE_SNAPSHOT_INLINE_H + +#include "cairo-surface-snapshot-private.h" +#include "cairo-surface-inline.h" + +static inline cairo_bool_t +_cairo_surface_snapshot_is_reused (cairo_surface_t *surface) +{ + return CAIRO_REFERENCE_COUNT_GET_VALUE (&surface->ref_count) > 2; +} + +static inline cairo_surface_t * +_cairo_surface_snapshot_get_target (cairo_surface_t *surface) +{ + cairo_surface_snapshot_t *snapshot = (cairo_surface_snapshot_t *) surface; + cairo_surface_t *target; + + CAIRO_MUTEX_LOCK (snapshot->mutex); + target = _cairo_surface_reference (snapshot->target); + CAIRO_MUTEX_UNLOCK (snapshot->mutex); + + return target; +} + +static inline cairo_bool_t +_cairo_surface_is_snapshot (cairo_surface_t *surface) +{ + return surface->backend->type == (cairo_surface_type_t)CAIRO_INTERNAL_SURFACE_TYPE_SNAPSHOT; +} + +#endif /* CAIRO_SURFACE_SNAPSHOT_INLINE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-snapshot-private.h b/local/recipes/libs/cairo/source/src/cairo-surface-snapshot-private.h new file mode 100644 index 0000000000..58bee7b49d --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-snapshot-private.h @@ -0,0 +1,51 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Intel Corporation. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_SURFACE_SNAPSHOT_PRIVATE_H +#define CAIRO_SURFACE_SNAPSHOT_PRIVATE_H + +#include "cairo-mutex-private.h" +#include "cairo-surface-private.h" +#include "cairo-surface-backend-private.h" + +struct _cairo_surface_snapshot { + cairo_surface_t base; + + cairo_mutex_t mutex; + cairo_surface_t *target; + cairo_surface_t *clone; +}; + +#endif /* CAIRO_SURFACE_SNAPSHOT_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-snapshot.c b/local/recipes/libs/cairo/source/src/cairo-surface-snapshot.c new file mode 100644 index 0000000000..dd4a253644 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-snapshot.c @@ -0,0 +1,295 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-surface-snapshot-inline.h" + +static cairo_status_t +_cairo_surface_snapshot_finish (void *abstract_surface) +{ + cairo_surface_snapshot_t *surface = abstract_surface; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (surface->clone != NULL) { + cairo_surface_finish (surface->clone); + status = surface->clone->status; + + cairo_surface_destroy (surface->clone); + } + + CAIRO_MUTEX_FINI (surface->mutex); + + return status; +} + +static cairo_status_t +_cairo_surface_snapshot_flush (void *abstract_surface, unsigned flags) +{ + cairo_surface_snapshot_t *surface = abstract_surface; + cairo_surface_t *target; + cairo_status_t status; + + target = _cairo_surface_snapshot_get_target (&surface->base); + status = target->status; + if (status == CAIRO_STATUS_SUCCESS) + status = _cairo_surface_flush (target, flags); + cairo_surface_destroy (target); + + return status; +} + +static cairo_surface_t * +_cairo_surface_snapshot_source (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_surface_snapshot_t *surface = abstract_surface; + return _cairo_surface_get_source (surface->target, extents); /* XXX racy */ +} + +struct snapshot_extra { + cairo_surface_t *target; + void *extra; +}; + +static cairo_status_t +_cairo_surface_snapshot_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **extra_out) +{ + cairo_surface_snapshot_t *surface = abstract_surface; + struct snapshot_extra *extra; + cairo_status_t status; + + extra = _cairo_calloc (sizeof (*extra)); + if (unlikely (extra == NULL)) { + *extra_out = NULL; + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + extra->target = _cairo_surface_snapshot_get_target (&surface->base); + status = _cairo_surface_acquire_source_image (extra->target, image_out, &extra->extra); + if (unlikely (status)) { + cairo_surface_destroy (extra->target); + free (extra); + extra = NULL; + } + + *extra_out = extra; + return status; +} + +static void +_cairo_surface_snapshot_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *_extra) +{ + struct snapshot_extra *extra = _extra; + + _cairo_surface_release_source_image (extra->target, image, extra->extra); + cairo_surface_destroy (extra->target); + free (extra); +} + +static cairo_bool_t +_cairo_surface_snapshot_get_extents (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_surface_snapshot_t *surface = abstract_surface; + cairo_surface_t *target; + cairo_bool_t bounded; + + target = _cairo_surface_snapshot_get_target (&surface->base); + bounded = _cairo_surface_get_extents (target, extents); + cairo_surface_destroy (target); + + return bounded; +} + +static const cairo_surface_backend_t _cairo_surface_snapshot_backend = { + CAIRO_INTERNAL_SURFACE_TYPE_SNAPSHOT, + _cairo_surface_snapshot_finish, + NULL, + + NULL, /* create similar */ + NULL, /* create similar image */ + NULL, /* map to image */ + NULL, /* unmap image */ + + _cairo_surface_snapshot_source, + _cairo_surface_snapshot_acquire_source_image, + _cairo_surface_snapshot_release_source_image, + NULL, /* snapshot */ + + NULL, /* copy_page */ + NULL, /* show_page */ + + _cairo_surface_snapshot_get_extents, + NULL, /* get-font-options */ + + _cairo_surface_snapshot_flush, +}; + +static void +_cairo_surface_snapshot_copy_on_write (cairo_surface_t *surface) +{ + cairo_surface_snapshot_t *snapshot = (cairo_surface_snapshot_t *) surface; + cairo_image_surface_t *image; + cairo_surface_t *clone; + void *extra; + cairo_status_t status; + + TRACE ((stderr, "%s: target=%d\n", + __FUNCTION__, snapshot->target->unique_id)); + + /* We need to make an image copy of the original surface since the + * snapshot may exceed the lifetime of the original device, i.e. + * when we later need to use the snapshot the data may have already + * been lost. + */ + + CAIRO_MUTEX_LOCK (snapshot->mutex); + + if (snapshot->target->backend->snapshot != NULL) { + clone = snapshot->target->backend->snapshot (snapshot->target); + if (clone != NULL) { + assert (clone->status || ! _cairo_surface_is_snapshot (clone)); + goto done; + } + } + + /* XXX copy to a similar surface, leave acquisition till later? + * We should probably leave such decisions to the backend in case we + * rely upon devices/connections like Xlib. + */ + status = _cairo_surface_acquire_source_image (snapshot->target, &image, &extra); + if (unlikely (status)) { + snapshot->target = _cairo_surface_create_in_error (status); + status = _cairo_surface_set_error (surface, status); + goto unlock; + } + clone = image->base.backend->snapshot (&image->base); + _cairo_surface_release_source_image (snapshot->target, image, extra); + +done: + status = _cairo_surface_set_error (surface, clone->status); + snapshot->target = snapshot->clone = clone; + snapshot->base.type = clone->type; +unlock: + CAIRO_MUTEX_UNLOCK (snapshot->mutex); +} + +/** + * _cairo_surface_snapshot: + * @surface: a #cairo_surface_t + * + * Make an immutable reference to @surface. It is an error to call a + * surface-modifying function on the result of this function. The + * resulting 'snapshot' is a lazily copied-on-write surface i.e. it + * remains a reference to the original surface until that surface is + * written to again, at which time a copy is made of the original surface + * and the snapshot then points to that instead. Multiple snapshots of the + * same unmodified surface point to the same copy. + * + * The caller owns the return value and should call + * cairo_surface_destroy() when finished with it. This function will not + * return %NULL, but will return a nil surface instead. + * + * Return value: The snapshot surface. Note that the return surface + * may not necessarily be of the same type as @surface. + **/ +cairo_surface_t * +_cairo_surface_snapshot (cairo_surface_t *surface) +{ + cairo_surface_snapshot_t *snapshot; + cairo_status_t status; + + TRACE ((stderr, "%s: target=%d\n", __FUNCTION__, surface->unique_id)); + + if (unlikely (surface->status)) + return _cairo_surface_create_in_error (surface->status); + + if (unlikely (surface->finished)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + if (surface->snapshot_of != NULL) + return cairo_surface_reference (surface); + + if (_cairo_surface_is_snapshot (surface)) + return cairo_surface_reference (surface); + + snapshot = (cairo_surface_snapshot_t *) + _cairo_surface_has_snapshot (surface, &_cairo_surface_snapshot_backend); + if (snapshot != NULL) + return cairo_surface_reference (&snapshot->base); + + snapshot = _cairo_calloc (sizeof (cairo_surface_snapshot_t)); + if (unlikely (snapshot == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + _cairo_surface_init (&snapshot->base, + &_cairo_surface_snapshot_backend, + NULL, /* device */ + surface->content, + surface->is_vector); + snapshot->base.type = surface->type; + + CAIRO_MUTEX_INIT (snapshot->mutex); + snapshot->target = surface; + snapshot->clone = NULL; + + status = _cairo_surface_copy_mime_data (&snapshot->base, surface); + if (unlikely (status)) { + cairo_surface_destroy (&snapshot->base); + return _cairo_surface_create_in_error (status); + } + + snapshot->base.device_transform = surface->device_transform; + snapshot->base.device_transform_inverse = surface->device_transform_inverse; + + _cairo_surface_attach_snapshot (surface, + &snapshot->base, + _cairo_surface_snapshot_copy_on_write); + + return &snapshot->base; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-subsurface-inline.h b/local/recipes/libs/cairo/source/src/cairo-surface-subsurface-inline.h new file mode 100644 index 0000000000..0cd09e63e7 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-subsurface-inline.h @@ -0,0 +1,72 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Intel Corporation. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_SURFACE_SUBSURFACE_INLINE_H +#define CAIRO_SURFACE_SUBSURFACE_INLINE_H + +#include "cairo-surface-subsurface-private.h" + +static inline cairo_surface_t * +_cairo_surface_subsurface_get_target (cairo_surface_t *surface) +{ + return ((cairo_surface_subsurface_t *) surface)->target; +} + +static inline void +_cairo_surface_subsurface_offset (cairo_surface_t *surface, + int *x, int *y) +{ + cairo_surface_subsurface_t *ss = (cairo_surface_subsurface_t *) surface; + *x += ss->extents.x; + *y += ss->extents.y; +} + +static inline cairo_surface_t * +_cairo_surface_subsurface_get_target_with_offset (cairo_surface_t *surface, + int *x, int *y) +{ + cairo_surface_subsurface_t *ss = (cairo_surface_subsurface_t *) surface; + *x += ss->extents.x; + *y += ss->extents.y; + return ss->target; +} + +static inline cairo_bool_t +_cairo_surface_is_subsurface (cairo_surface_t *surface) +{ + return surface->backend->type == CAIRO_SURFACE_TYPE_SUBSURFACE; +} + +#endif /* CAIRO_SURFACE_SUBSURFACE_INLINE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-subsurface-private.h b/local/recipes/libs/cairo/source/src/cairo-surface-subsurface-private.h new file mode 100644 index 0000000000..89c5cc01b9 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-subsurface-private.h @@ -0,0 +1,55 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Intel Corporation. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_SURFACE_SUBSURFACE_PRIVATE_H +#define CAIRO_SURFACE_SUBSURFACE_PRIVATE_H + +#include "cairo-surface-private.h" +#include "cairo-surface-backend-private.h" + +struct _cairo_surface_subsurface { + cairo_surface_t base; + + cairo_rectangle_int_t extents; + + cairo_surface_t *target; + cairo_surface_t *snapshot; +}; + +cairo_private void +_cairo_surface_subsurface_set_snapshot (cairo_surface_t *surface, + cairo_surface_t *snapshot); + +#endif /* CAIRO_SURFACE_SUBSURFACE_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-subsurface.c b/local/recipes/libs/cairo/source/src/cairo-surface-subsurface.c new file mode 100644 index 0000000000..9818c7296b --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-subsurface.c @@ -0,0 +1,589 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Intel Corporation. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-clip-inline.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-recording-surface-private.h" +#include "cairo-surface-offset-private.h" +#include "cairo-surface-snapshot-private.h" +#include "cairo-surface-subsurface-private.h" + +static const cairo_surface_backend_t _cairo_surface_subsurface_backend; + +static cairo_status_t +_cairo_surface_subsurface_finish (void *abstract_surface) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + + cairo_surface_destroy (surface->target); + cairo_surface_destroy (surface->snapshot); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_surface_t * +_cairo_surface_subsurface_create_similar (void *other, + cairo_content_t content, + int width, int height) +{ + cairo_surface_subsurface_t *surface = other; + + if (surface->target->backend->create_similar == NULL) + return NULL; + + return surface->target->backend->create_similar (surface->target, content, width, height); +} + +static cairo_surface_t * +_cairo_surface_subsurface_create_similar_image (void *other, + cairo_format_t format, + int width, int height) +{ + cairo_surface_subsurface_t *surface = other; + + if (surface->target->backend->create_similar_image == NULL) + return NULL; + + return surface->target->backend->create_similar_image (surface->target, + format, + width, height); +} + +static cairo_image_surface_t * +_cairo_surface_subsurface_map_to_image (void *abstract_surface, + const cairo_rectangle_int_t *extents) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + cairo_rectangle_int_t target_extents; + + target_extents.x = extents->x + surface->extents.x; + target_extents.y = extents->y + surface->extents.y; + target_extents.width = extents->width; + target_extents.height = extents->height; + + return _cairo_surface_map_to_image (surface->target, &target_extents); +} + +static cairo_int_status_t +_cairo_surface_subsurface_unmap_image (void *abstract_surface, + cairo_image_surface_t *image) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + return _cairo_surface_unmap_image (surface->target, image); +} + +static cairo_int_status_t +_cairo_surface_subsurface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + cairo_rectangle_int_t rect = { 0, 0, surface->extents.width, surface->extents.height }; + cairo_status_t status; + cairo_clip_t *target_clip; + + target_clip = _cairo_clip_copy_intersect_rectangle (clip, &rect); + status = _cairo_surface_offset_paint (surface->target, + -surface->extents.x, -surface->extents.y, + op, source, target_clip); + _cairo_clip_destroy (target_clip); + return status; +} + +static cairo_int_status_t +_cairo_surface_subsurface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + cairo_rectangle_int_t rect = { 0, 0, surface->extents.width, surface->extents.height }; + cairo_status_t status; + cairo_clip_t *target_clip; + + target_clip = _cairo_clip_copy_intersect_rectangle (clip, &rect); + status = _cairo_surface_offset_mask (surface->target, + -surface->extents.x, -surface->extents.y, + op, source, mask, target_clip); + _cairo_clip_destroy (target_clip); + return status; +} + +static cairo_int_status_t +_cairo_surface_subsurface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + cairo_rectangle_int_t rect = { 0, 0, surface->extents.width, surface->extents.height }; + cairo_status_t status; + cairo_clip_t *target_clip; + + target_clip = _cairo_clip_copy_intersect_rectangle (clip, &rect); + status = _cairo_surface_offset_fill (surface->target, + -surface->extents.x, -surface->extents.y, + op, source, path, fill_rule, tolerance, antialias, + target_clip); + _cairo_clip_destroy (target_clip); + return status; +} + +static cairo_int_status_t +_cairo_surface_subsurface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + cairo_rectangle_int_t rect = { 0, 0, surface->extents.width, surface->extents.height }; + cairo_status_t status; + cairo_clip_t *target_clip; + + target_clip = _cairo_clip_copy_intersect_rectangle (clip, &rect); + status = _cairo_surface_offset_stroke (surface->target, + -surface->extents.x, -surface->extents.y, + op, source, path, stroke_style, ctm, ctm_inverse, + tolerance, antialias, + target_clip); + _cairo_clip_destroy (target_clip); + return status; +} + +static cairo_int_status_t +_cairo_surface_subsurface_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + cairo_rectangle_int_t rect = { 0, 0, surface->extents.width, surface->extents.height }; + cairo_status_t status; + cairo_clip_t *target_clip; + + target_clip = _cairo_clip_copy_intersect_rectangle (clip, &rect); + status = _cairo_surface_offset_glyphs (surface->target, + -surface->extents.x, -surface->extents.y, + op, source, + scaled_font, glyphs, num_glyphs, + target_clip); + _cairo_clip_destroy (target_clip); + return status; +} + +static cairo_status_t +_cairo_surface_subsurface_flush (void *abstract_surface, unsigned flags) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + return _cairo_surface_flush (surface->target, flags); +} + +static cairo_status_t +_cairo_surface_subsurface_mark_dirty (void *abstract_surface, + int x, int y, + int width, int height) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + cairo_status_t status; + + status = CAIRO_STATUS_SUCCESS; + if (surface->target->backend->mark_dirty_rectangle != NULL) { + cairo_rectangle_int_t rect, extents; + + rect.x = x; + rect.y = y; + rect.width = width; + rect.height = height; + + extents.x = extents.y = 0; + extents.width = surface->extents.width; + extents.height = surface->extents.height; + + if (_cairo_rectangle_intersect (&rect, &extents)) { + status = surface->target->backend->mark_dirty_rectangle (surface->target, + rect.x + surface->extents.x, + rect.y + surface->extents.y, + rect.width, rect.height); + } + } + + return status; +} + +static cairo_bool_t +_cairo_surface_subsurface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + + extents->x = 0; + extents->y = 0; + extents->width = surface->extents.width; + extents->height = surface->extents.height; + + return TRUE; +} + +static void +_cairo_surface_subsurface_get_font_options (void *abstract_surface, + cairo_font_options_t *options) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + + if (surface->target->backend->get_font_options != NULL) + surface->target->backend->get_font_options (surface->target, options); +} + +static cairo_surface_t * +_cairo_surface_subsurface_source (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + cairo_surface_t *source; + + source = _cairo_surface_get_source (surface->target, extents); + if (extents) + *extents = surface->extents; + + return source; +} + +static cairo_status_t +_cairo_surface_subsurface_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **extra_out) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + cairo_surface_pattern_t pattern; + cairo_surface_t *image; + cairo_status_t status; + + image = _cairo_image_surface_create_with_content (surface->base.content, + surface->extents.width, + surface->extents.height); + if (unlikely (image->status)) + return image->status; + + _cairo_pattern_init_for_surface (&pattern, surface->target); + cairo_matrix_init_translate (&pattern.base.matrix, + surface->extents.x, + surface->extents.y); + pattern.base.filter = CAIRO_FILTER_NEAREST; + status = _cairo_surface_paint (image, + CAIRO_OPERATOR_SOURCE, + &pattern.base, NULL); + _cairo_pattern_fini (&pattern.base); + if (unlikely (status)) { + cairo_surface_destroy (image); + return status; + } + + *image_out = (cairo_image_surface_t *)image; + *extra_out = NULL; + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_surface_subsurface_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *abstract_extra) +{ + cairo_surface_destroy (&image->base); +} + +static cairo_surface_t * +_cairo_surface_subsurface_snapshot (void *abstract_surface) +{ + cairo_surface_subsurface_t *surface = abstract_surface; + cairo_surface_pattern_t pattern; + cairo_surface_t *clone; + cairo_status_t status; + + TRACE ((stderr, "%s: target=%d\n", __FUNCTION__, surface->target->unique_id)); + + clone = _cairo_surface_create_scratch (surface->target, + surface->target->content, + surface->extents.width, + surface->extents.height, + NULL); + if (unlikely (clone->status)) + return clone; + + _cairo_pattern_init_for_surface (&pattern, surface->target); + cairo_matrix_init_translate (&pattern.base.matrix, + surface->extents.x, surface->extents.y); + pattern.base.filter = CAIRO_FILTER_NEAREST; + status = _cairo_surface_paint (clone, + CAIRO_OPERATOR_SOURCE, + &pattern.base, NULL); + _cairo_pattern_fini (&pattern.base); + + if (unlikely (status)) { + cairo_surface_destroy (clone); + clone = _cairo_surface_create_in_error (status); + } + + return clone; +} + +static cairo_t * +_cairo_surface_subsurface_create_context(void *target) +{ + cairo_surface_subsurface_t *surface = target; + return surface->target->backend->create_context (&surface->base); +} + +static const cairo_surface_backend_t _cairo_surface_subsurface_backend = { + CAIRO_SURFACE_TYPE_SUBSURFACE, + _cairo_surface_subsurface_finish, + + _cairo_surface_subsurface_create_context, + + _cairo_surface_subsurface_create_similar, + _cairo_surface_subsurface_create_similar_image, + _cairo_surface_subsurface_map_to_image, + _cairo_surface_subsurface_unmap_image, + + _cairo_surface_subsurface_source, + _cairo_surface_subsurface_acquire_source_image, + _cairo_surface_subsurface_release_source_image, + _cairo_surface_subsurface_snapshot, + + NULL, /* copy_page */ + NULL, /* show_page */ + + _cairo_surface_subsurface_get_extents, + _cairo_surface_subsurface_get_font_options, + + _cairo_surface_subsurface_flush, + _cairo_surface_subsurface_mark_dirty, + + _cairo_surface_subsurface_paint, + _cairo_surface_subsurface_mask, + _cairo_surface_subsurface_stroke, + _cairo_surface_subsurface_fill, + NULL, /* fill/stroke */ + _cairo_surface_subsurface_glyphs, +}; + +/** + * cairo_surface_create_for_rectangle: + * @target: an existing surface for which the sub-surface will point to + * @x: the x-origin of the sub-surface from the top-left of the target surface (in device-space units) + * @y: the y-origin of the sub-surface from the top-left of the target surface (in device-space units) + * @width: width of the sub-surface (in device-space units) + * @height: height of the sub-surface (in device-space units) + * + * Create a new surface that is a rectangle within the target surface. + * All operations drawn to this surface are then clipped and translated + * onto the target surface. Nothing drawn via this sub-surface outside of + * its bounds is drawn onto the target surface, making this a useful method + * for passing constrained child surfaces to library routines that draw + * directly onto the parent surface, i.e. with no further backend allocations, + * double buffering or copies. + * + * The semantics of subsurfaces have not been finalized yet + * unless the rectangle is in full device units, is contained within + * the extents of the target surface, and the target or subsurface's + * device transforms are not changed. + * + * Return value: a pointer to the newly allocated surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if @other is already in an error state + * or any other error occurs. + * + * Since: 1.10 + **/ +cairo_surface_t * +cairo_surface_create_for_rectangle (cairo_surface_t *target, + double x, double y, + double width, double height) +{ + cairo_surface_subsurface_t *surface; + + if (unlikely (width < 0 || height < 0)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + + if (unlikely (target->status)) + return _cairo_surface_create_in_error (target->status); + if (unlikely (target->finished)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + surface = _cairo_calloc (sizeof (cairo_surface_subsurface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + x *= target->device_transform.xx; + y *= target->device_transform.yy; + + width *= target->device_transform.xx; + height *= target->device_transform.yy; + + x += target->device_transform.x0; + y += target->device_transform.y0; + + _cairo_surface_init (&surface->base, + &_cairo_surface_subsurface_backend, + NULL, /* device */ + target->content, + target->is_vector); + + /* XXX forced integer alignment */ + surface->extents.x = ceil (x); + surface->extents.y = ceil (y); + surface->extents.width = floor (x + width) - surface->extents.x; + surface->extents.height = floor (y + height) - surface->extents.y; + if ((surface->extents.width | surface->extents.height) < 0) + surface->extents.width = surface->extents.height = 0; + + if (target->backend->type == CAIRO_SURFACE_TYPE_SUBSURFACE) { + /* Maintain subsurfaces as 1-depth */ + cairo_surface_subsurface_t *sub = (cairo_surface_subsurface_t *) target; + surface->extents.x += sub->extents.x; + surface->extents.y += sub->extents.y; + target = sub->target; + } + + surface->target = cairo_surface_reference (target); + surface->base.type = surface->target->type; + + surface->snapshot = NULL; + + cairo_surface_set_device_scale (&surface->base, + target->device_transform.xx, + target->device_transform.yy); + + return &surface->base; +} + +cairo_surface_t * +_cairo_surface_create_for_rectangle_int (cairo_surface_t *target, + const cairo_rectangle_int_t *extents) +{ + cairo_surface_subsurface_t *surface; + + if (unlikely (target->status)) + return _cairo_surface_create_in_error (target->status); + if (unlikely (target->finished)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + assert (target->backend->type != CAIRO_SURFACE_TYPE_SUBSURFACE); + + surface = _cairo_calloc (sizeof (cairo_surface_subsurface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_surface_init (&surface->base, + &_cairo_surface_subsurface_backend, + NULL, /* device */ + target->content, + target->is_vector); + + surface->extents = *extents; + surface->extents.x *= target->device_transform.xx; + surface->extents.y *= target->device_transform.yy; + surface->extents.width *= target->device_transform.xx; + surface->extents.height *= target->device_transform.yy; + surface->extents.x += target->device_transform.x0; + surface->extents.y += target->device_transform.y0; + + surface->target = cairo_surface_reference (target); + surface->base.type = surface->target->type; + + surface->snapshot = NULL; + + cairo_surface_set_device_scale (&surface->base, + target->device_transform.xx, + target->device_transform.yy); + + return &surface->base; +} +/* XXX observe mark-dirty */ + +static void +_cairo_surface_subsurface_detach_snapshot (cairo_surface_t *surface) +{ + cairo_surface_subsurface_t *ss = (cairo_surface_subsurface_t *) surface; + + TRACE ((stderr, "%s: target=%d\n", __FUNCTION__, ss->target->unique_id)); + + cairo_surface_destroy (ss->snapshot); + ss->snapshot = NULL; +} + +void +_cairo_surface_subsurface_set_snapshot (cairo_surface_t *surface, + cairo_surface_t *snapshot) +{ + cairo_surface_subsurface_t *ss = (cairo_surface_subsurface_t *) surface; + + TRACE ((stderr, "%s: target=%d, snapshot=%d\n", __FUNCTION__, + ss->target->unique_id, snapshot->unique_id)); + + /* FIXME: attaching the subsurface as a snapshot to its target creates + * a reference cycle. Let's make this call as a no-op until that bug + * is fixed. + */ + return; + + if (ss->snapshot) + _cairo_surface_detach_snapshot (ss->snapshot); + + ss->snapshot = cairo_surface_reference (snapshot); + + _cairo_surface_attach_snapshot (ss->target, &ss->base, + _cairo_surface_subsurface_detach_snapshot); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-wrapper-private.h b/local/recipes/libs/cairo/source/src/cairo-surface-wrapper-private.h new file mode 100644 index 0000000000..016402d7ea --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-wrapper-private.h @@ -0,0 +1,213 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_SURFACE_WRAPPER_PRIVATE_H +#define CAIRO_SURFACE_WRAPPER_PRIVATE_H + +#include "cairoint.h" +#include "cairo-types-private.h" +#include "cairo-recording-surface-private.h" +#include "cairo-surface-backend-private.h" + +CAIRO_BEGIN_DECLS + +struct _cairo_surface_wrapper { + cairo_surface_t *target; + + cairo_matrix_t transform; + + cairo_bool_t has_extents; + cairo_rectangle_int_t extents; + const cairo_clip_t *clip; + + unsigned int source_region_id; + unsigned int mask_region_id; + + cairo_bool_t needs_transform; +}; + +cairo_private void +_cairo_surface_wrapper_init (cairo_surface_wrapper_t *wrapper, + cairo_surface_t *target); + +cairo_private void +_cairo_surface_wrapper_intersect_extents (cairo_surface_wrapper_t *wrapper, + const cairo_rectangle_int_t *extents); + +cairo_private void +_cairo_surface_wrapper_set_inverse_transform (cairo_surface_wrapper_t *wrapper, + const cairo_matrix_t *transform); + +cairo_private void +_cairo_surface_wrapper_set_clip (cairo_surface_wrapper_t *wrapper, + const cairo_clip_t *clip); + +cairo_private void +_cairo_surface_wrapper_fini (cairo_surface_wrapper_t *wrapper); + +static inline cairo_bool_t +_cairo_surface_wrapper_has_fill_stroke (cairo_surface_wrapper_t *wrapper) +{ + return wrapper->target->backend->fill_stroke != NULL; +} + +cairo_private cairo_status_t +_cairo_surface_wrapper_acquire_source_image (cairo_surface_wrapper_t *wrapper, + cairo_image_surface_t **image_out, + void **image_extra); + +cairo_private void +_cairo_surface_wrapper_release_source_image (cairo_surface_wrapper_t *wrapper, + cairo_image_surface_t *image, + void *image_extra); + + +cairo_private cairo_status_t +_cairo_surface_wrapper_paint (cairo_surface_wrapper_t *wrapper, + cairo_operator_t op, + const cairo_pattern_t *source, + unsigned int source_region_id, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_wrapper_mask (cairo_surface_wrapper_t *wrapper, + cairo_operator_t op, + const cairo_pattern_t *source, + unsigned int source_region_id, + const cairo_pattern_t *mask, + unsigned int mask_region_id, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_wrapper_stroke (cairo_surface_wrapper_t *wrapper, + cairo_operator_t op, + const cairo_pattern_t *source, + unsigned int source_region_id, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_wrapper_fill_stroke (cairo_surface_wrapper_t *wrapper, + cairo_operator_t fill_op, + const cairo_pattern_t *fill_source, + unsigned int fill_region_id, + cairo_fill_rule_t fill_rule, + double fill_tolerance, + cairo_antialias_t fill_antialias, + const cairo_path_fixed_t *path, + cairo_operator_t stroke_op, + const cairo_pattern_t *stroke_source, + unsigned int stroke_region_id, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *stroke_ctm, + const cairo_matrix_t *stroke_ctm_inverse, + double stroke_tolerance, + cairo_antialias_t stroke_antialias, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_wrapper_fill (cairo_surface_wrapper_t *wrapper, + cairo_operator_t op, + const cairo_pattern_t *source, + unsigned int source_region_id, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_wrapper_show_text_glyphs (cairo_surface_wrapper_t *wrapper, + cairo_operator_t op, + const cairo_pattern_t *source, + unsigned int source_region_id, + const char *utf8, + int utf8_len, + const cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_wrapper_tag (cairo_surface_wrapper_t *wrapper, + cairo_bool_t begin, + const char *tag_name, + const char *attributes); + +cairo_private cairo_surface_t * +_cairo_surface_wrapper_create_similar (cairo_surface_wrapper_t *wrapper, + cairo_content_t content, + int width, + int height); +cairo_private cairo_bool_t +_cairo_surface_wrapper_get_extents (cairo_surface_wrapper_t *wrapper, + cairo_rectangle_int_t *extents); + +cairo_private void +_cairo_surface_wrapper_get_font_options (cairo_surface_wrapper_t *wrapper, + cairo_font_options_t *options); + +cairo_private cairo_surface_t * +_cairo_surface_wrapper_snapshot (cairo_surface_wrapper_t *wrapper); + +cairo_private cairo_bool_t +_cairo_surface_wrapper_has_show_text_glyphs (cairo_surface_wrapper_t *wrapper); + +static inline cairo_bool_t +_cairo_surface_wrapper_is_active (cairo_surface_wrapper_t *wrapper) +{ + return wrapper->target != (cairo_surface_t *) 0; +} + +cairo_private cairo_bool_t +_cairo_surface_wrapper_get_target_extents (cairo_surface_wrapper_t *wrapper, + cairo_bool_t surface_is_unbounded, + cairo_rectangle_int_t *extents); + +CAIRO_END_DECLS + +#endif /* CAIRO_SURFACE_WRAPPER_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-surface-wrapper.c b/local/recipes/libs/cairo/source/src/cairo-surface-wrapper.c new file mode 100644 index 0000000000..29c19c5a5f --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface-wrapper.c @@ -0,0 +1,711 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * Copyright © 2007 Adrian Johnson + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-clip-inline.h" +#include "cairo-error-private.h" +#include "cairo-pattern-private.h" +#include "cairo-surface-wrapper-private.h" + +/* A collection of routines to facilitate surface wrapping */ + +static void +_copy_transformed_pattern (cairo_pattern_t *pattern, + const cairo_pattern_t *original, + const cairo_matrix_t *ctm_inverse, + unsigned int region_id) +{ + _cairo_pattern_init_static_copy (pattern, original); + + if (! _cairo_matrix_is_identity (ctm_inverse)) + _cairo_pattern_transform (pattern, ctm_inverse); + + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) pattern; + surface_pattern->region_array_id = region_id; + } +} + +cairo_status_t +_cairo_surface_wrapper_acquire_source_image (cairo_surface_wrapper_t *wrapper, + cairo_image_surface_t **image_out, + void **image_extra) +{ + if (unlikely (wrapper->target->status)) + return wrapper->target->status; + + return _cairo_surface_acquire_source_image (wrapper->target, + image_out, image_extra); +} + +void +_cairo_surface_wrapper_release_source_image (cairo_surface_wrapper_t *wrapper, + cairo_image_surface_t *image, + void *image_extra) +{ + _cairo_surface_release_source_image (wrapper->target, image, image_extra); +} + +static void +_cairo_surface_wrapper_get_transform (cairo_surface_wrapper_t *wrapper, + cairo_matrix_t *m) +{ + cairo_matrix_init_identity (m); + + if (! _cairo_matrix_is_identity (&wrapper->transform)) + cairo_matrix_multiply (m, &wrapper->transform, m); + + if (! _cairo_matrix_is_identity (&wrapper->target->device_transform)) + cairo_matrix_multiply (m, &wrapper->target->device_transform, m); +} + +static void +_cairo_surface_wrapper_get_inverse_transform (cairo_surface_wrapper_t *wrapper, + cairo_matrix_t *m) +{ + cairo_matrix_init_identity (m); + + if (! _cairo_matrix_is_identity (&wrapper->target->device_transform_inverse)) + cairo_matrix_multiply (m, &wrapper->target->device_transform_inverse, m); + + if (! _cairo_matrix_is_identity (&wrapper->transform)) { + cairo_matrix_t inv; + cairo_status_t status; + + inv = wrapper->transform; + status = cairo_matrix_invert (&inv); + assert (status == CAIRO_STATUS_SUCCESS); + cairo_matrix_multiply (m, &inv, m); + } +} + +static cairo_clip_t * +_cairo_surface_wrapper_get_clip (cairo_surface_wrapper_t *wrapper, + const cairo_clip_t *clip) +{ + cairo_clip_t *copy; + cairo_matrix_t m; + + copy = _cairo_clip_copy (clip); + if (wrapper->has_extents) { + copy = _cairo_clip_intersect_rectangle (copy, &wrapper->extents); + } + _cairo_surface_wrapper_get_transform (wrapper, &m); + copy = _cairo_clip_transform (copy, &m); + if (wrapper->clip) + copy = _cairo_clip_intersect_clip (copy, wrapper->clip); + + return copy; +} + +cairo_status_t +_cairo_surface_wrapper_paint (cairo_surface_wrapper_t *wrapper, + cairo_operator_t op, + const cairo_pattern_t *source, + unsigned int source_region_id, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_clip_t *dev_clip; + cairo_pattern_union_t source_copy; + + if (unlikely (wrapper->target->status)) + return wrapper->target->status; + + dev_clip = _cairo_surface_wrapper_get_clip (wrapper, clip); + if (_cairo_clip_is_all_clipped (dev_clip)) + return CAIRO_INT_STATUS_NOTHING_TO_DO; + + if (wrapper->needs_transform || source_region_id != 0) { + cairo_matrix_t m; + + _cairo_surface_wrapper_get_transform (wrapper, &m); + + status = cairo_matrix_invert (&m); + assert (status == CAIRO_STATUS_SUCCESS); + + _copy_transformed_pattern (&source_copy.base, source, &m, source_region_id); + source = &source_copy.base; + } + + status = _cairo_surface_paint (wrapper->target, op, source, dev_clip); + + _cairo_clip_destroy (dev_clip); + return status; +} + +cairo_status_t +_cairo_surface_wrapper_mask (cairo_surface_wrapper_t *wrapper, + cairo_operator_t op, + const cairo_pattern_t *source, + unsigned int source_region_id, + const cairo_pattern_t *mask, + unsigned int mask_region_id, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_clip_t *dev_clip; + cairo_pattern_union_t source_copy; + cairo_pattern_union_t mask_copy; + + if (unlikely (wrapper->target->status)) + return wrapper->target->status; + + dev_clip = _cairo_surface_wrapper_get_clip (wrapper, clip); + if (_cairo_clip_is_all_clipped (dev_clip)) + return CAIRO_INT_STATUS_NOTHING_TO_DO; + + if (wrapper->needs_transform || source_region_id != 0 || mask_region_id != 0) { + cairo_matrix_t m; + + _cairo_surface_wrapper_get_transform (wrapper, &m); + + status = cairo_matrix_invert (&m); + assert (status == CAIRO_STATUS_SUCCESS); + + _copy_transformed_pattern (&source_copy.base, source, &m, source_region_id); + source = &source_copy.base; + + _copy_transformed_pattern (&mask_copy.base, mask, &m, mask_region_id); + mask = &mask_copy.base; + } + + status = _cairo_surface_mask (wrapper->target, op, source, mask, dev_clip); + + _cairo_clip_destroy (dev_clip); + return status; +} + +cairo_status_t +_cairo_surface_wrapper_stroke (cairo_surface_wrapper_t *wrapper, + cairo_operator_t op, + const cairo_pattern_t *source, + unsigned int source_region_id, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_path_fixed_t path_copy, *dev_path = (cairo_path_fixed_t *) path; + cairo_clip_t *dev_clip; + cairo_matrix_t dev_ctm = *ctm; + cairo_matrix_t dev_ctm_inverse = *ctm_inverse; + cairo_pattern_union_t source_copy; + + if (unlikely (wrapper->target->status)) + return wrapper->target->status; + + dev_clip = _cairo_surface_wrapper_get_clip (wrapper, clip); + if (_cairo_clip_is_all_clipped (dev_clip)) + return CAIRO_INT_STATUS_NOTHING_TO_DO; + + if (wrapper->needs_transform || source_region_id != 0) { + cairo_matrix_t m; + + _cairo_surface_wrapper_get_transform (wrapper, &m); + + status = _cairo_path_fixed_init_copy (&path_copy, dev_path); + if (unlikely (status)) + goto FINISH; + + _cairo_path_fixed_transform (&path_copy, &m); + dev_path = &path_copy; + + cairo_matrix_multiply (&dev_ctm, &dev_ctm, &m); + + status = cairo_matrix_invert (&m); + assert (status == CAIRO_STATUS_SUCCESS); + + cairo_matrix_multiply (&dev_ctm_inverse, &m, &dev_ctm_inverse); + + _copy_transformed_pattern (&source_copy.base, source, &m, source_region_id); + source = &source_copy.base; + } + + status = _cairo_surface_stroke (wrapper->target, op, source, + dev_path, stroke_style, + &dev_ctm, &dev_ctm_inverse, + tolerance, antialias, + dev_clip); + + FINISH: + if (dev_path != path) + _cairo_path_fixed_fini (dev_path); + _cairo_clip_destroy (dev_clip); + return status; +} + +cairo_status_t +_cairo_surface_wrapper_fill_stroke (cairo_surface_wrapper_t *wrapper, + cairo_operator_t fill_op, + const cairo_pattern_t *fill_source, + unsigned int fill_region_id, + cairo_fill_rule_t fill_rule, + double fill_tolerance, + cairo_antialias_t fill_antialias, + const cairo_path_fixed_t *path, + cairo_operator_t stroke_op, + const cairo_pattern_t *stroke_source, + unsigned int stroke_region_id, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *stroke_ctm, + const cairo_matrix_t *stroke_ctm_inverse, + double stroke_tolerance, + cairo_antialias_t stroke_antialias, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_path_fixed_t path_copy, *dev_path = (cairo_path_fixed_t *)path; + cairo_matrix_t dev_ctm = *stroke_ctm; + cairo_matrix_t dev_ctm_inverse = *stroke_ctm_inverse; + cairo_clip_t *dev_clip; + cairo_pattern_union_t stroke_source_copy; + cairo_pattern_union_t fill_source_copy; + + if (unlikely (wrapper->target->status)) + return wrapper->target->status; + + dev_clip = _cairo_surface_wrapper_get_clip (wrapper, clip); + if (_cairo_clip_is_all_clipped (dev_clip)) + return CAIRO_INT_STATUS_NOTHING_TO_DO; + + if (wrapper->needs_transform || fill_region_id != 0 || stroke_region_id != 0) { + cairo_matrix_t m; + + _cairo_surface_wrapper_get_transform (wrapper, &m); + + status = _cairo_path_fixed_init_copy (&path_copy, dev_path); + if (unlikely (status)) + goto FINISH; + + _cairo_path_fixed_transform (&path_copy, &m); + dev_path = &path_copy; + + cairo_matrix_multiply (&dev_ctm, &dev_ctm, &m); + + status = cairo_matrix_invert (&m); + assert (status == CAIRO_STATUS_SUCCESS); + + cairo_matrix_multiply (&dev_ctm_inverse, &m, &dev_ctm_inverse); + + _copy_transformed_pattern (&stroke_source_copy.base, stroke_source, &m, fill_region_id); + stroke_source = &stroke_source_copy.base; + + _copy_transformed_pattern (&fill_source_copy.base, fill_source, &m, stroke_region_id); + fill_source = &fill_source_copy.base; + } + + status = _cairo_surface_fill_stroke (wrapper->target, + fill_op, fill_source, fill_rule, + fill_tolerance, fill_antialias, + dev_path, + stroke_op, stroke_source, + stroke_style, + &dev_ctm, &dev_ctm_inverse, + stroke_tolerance, stroke_antialias, + dev_clip); + + FINISH: + if (dev_path != path) + _cairo_path_fixed_fini (dev_path); + _cairo_clip_destroy (dev_clip); + return status; +} + +cairo_status_t +_cairo_surface_wrapper_fill (cairo_surface_wrapper_t *wrapper, + cairo_operator_t op, + const cairo_pattern_t *source, + unsigned int source_region_id, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_path_fixed_t path_copy, *dev_path = (cairo_path_fixed_t *) path; + cairo_pattern_union_t source_copy; + cairo_clip_t *dev_clip; + + if (unlikely (wrapper->target->status)) + return wrapper->target->status; + + dev_clip = _cairo_surface_wrapper_get_clip (wrapper, clip); + if (_cairo_clip_is_all_clipped (dev_clip)) + return CAIRO_INT_STATUS_NOTHING_TO_DO; + + if (wrapper->needs_transform || source_region_id != 0) { + cairo_matrix_t m; + + _cairo_surface_wrapper_get_transform (wrapper, &m); + + status = _cairo_path_fixed_init_copy (&path_copy, dev_path); + if (unlikely (status)) + goto FINISH; + + _cairo_path_fixed_transform (&path_copy, &m); + dev_path = &path_copy; + + status = cairo_matrix_invert (&m); + assert (status == CAIRO_STATUS_SUCCESS); + + _copy_transformed_pattern (&source_copy.base, source, &m, source_region_id); + source = &source_copy.base; + } + + status = _cairo_surface_fill (wrapper->target, op, source, + dev_path, fill_rule, + tolerance, antialias, + dev_clip); + + FINISH: + if (dev_path != path) + _cairo_path_fixed_fini (dev_path); + _cairo_clip_destroy (dev_clip); + return status; +} + +cairo_status_t +_cairo_surface_wrapper_show_text_glyphs (cairo_surface_wrapper_t *wrapper, + cairo_operator_t op, + const cairo_pattern_t *source, + unsigned int source_region_id, + const char *utf8, + int utf8_len, + const cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_clip_t *dev_clip; + cairo_glyph_t stack_glyphs [CAIRO_STACK_ARRAY_LENGTH(cairo_glyph_t)]; + cairo_glyph_t *dev_glyphs = stack_glyphs; + cairo_scaled_font_t *dev_scaled_font = scaled_font; + cairo_pattern_union_t source_copy; + cairo_font_options_t options; + + if (unlikely (wrapper->target->status)) + return wrapper->target->status; + + dev_clip = _cairo_surface_wrapper_get_clip (wrapper, clip); + if (_cairo_clip_is_all_clipped (dev_clip)) + return CAIRO_INT_STATUS_NOTHING_TO_DO; + + cairo_surface_get_font_options (wrapper->target, &options); + cairo_font_options_merge (&options, &scaled_font->options); + + if (wrapper->needs_transform || source_region_id != 0) { + cairo_matrix_t m; + int i; + + _cairo_surface_wrapper_get_transform (wrapper, &m); + + if (! _cairo_matrix_is_translation (&m)) { + cairo_matrix_t ctm; + + _cairo_matrix_multiply (&ctm, + &m, + &scaled_font->ctm); + dev_scaled_font = cairo_scaled_font_create (scaled_font->font_face, + &scaled_font->font_matrix, + &ctm, &options); + } + + if (num_glyphs > ARRAY_LENGTH (stack_glyphs)) { + dev_glyphs = _cairo_malloc_ab (num_glyphs, sizeof (cairo_glyph_t)); + if (unlikely (dev_glyphs == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto FINISH; + } + } + + for (i = 0; i < num_glyphs; i++) { + dev_glyphs[i] = glyphs[i]; + cairo_matrix_transform_point (&m, + &dev_glyphs[i].x, + &dev_glyphs[i].y); + } + + status = cairo_matrix_invert (&m); + assert (status == CAIRO_STATUS_SUCCESS); + + _copy_transformed_pattern (&source_copy.base, source, &m, source_region_id); + source = &source_copy.base; + } else { + if (! cairo_font_options_equal (&options, &scaled_font->options)) { + dev_scaled_font = cairo_scaled_font_create (scaled_font->font_face, + &scaled_font->font_matrix, + &scaled_font->ctm, + &options); + } + + /* show_text_glyphs is special because _cairo_surface_show_text_glyphs is allowed + * to modify the glyph array that's passed in. We must always + * copy the array before handing it to the backend. + */ + if (num_glyphs > ARRAY_LENGTH (stack_glyphs)) { + dev_glyphs = _cairo_malloc_ab (num_glyphs, sizeof (cairo_glyph_t)); + if (unlikely (dev_glyphs == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto FINISH; + } + } + + memcpy (dev_glyphs, glyphs, sizeof (cairo_glyph_t) * num_glyphs); + } + + status = _cairo_surface_show_text_glyphs (wrapper->target, op, source, + utf8, utf8_len, + dev_glyphs, num_glyphs, + clusters, num_clusters, + cluster_flags, + dev_scaled_font, + dev_clip); + FINISH: + _cairo_clip_destroy (dev_clip); + if (dev_glyphs != stack_glyphs) + free (dev_glyphs); + if (dev_scaled_font != scaled_font) + cairo_scaled_font_destroy (dev_scaled_font); + return status; +} + +cairo_status_t +_cairo_surface_wrapper_tag (cairo_surface_wrapper_t *wrapper, + cairo_bool_t begin, + const char *tag_name, + const char *attributes) +{ + if (unlikely (wrapper->target->status)) + return wrapper->target->status; + + + return _cairo_surface_tag (wrapper->target, begin, tag_name, attributes); +} + +cairo_surface_t * +_cairo_surface_wrapper_create_similar (cairo_surface_wrapper_t *wrapper, + cairo_content_t content, + int width, + int height) +{ + return _cairo_surface_create_scratch (wrapper->target, + content, width, height, NULL); +} + +cairo_bool_t +_cairo_surface_wrapper_get_extents (cairo_surface_wrapper_t *wrapper, + cairo_rectangle_int_t *extents) +{ + if (wrapper->has_extents) { + if (_cairo_surface_get_extents (wrapper->target, extents)) + _cairo_rectangle_intersect (extents, &wrapper->extents); + else + *extents = wrapper->extents; + + return TRUE; + } else { + return _cairo_surface_get_extents (wrapper->target, extents); + } +} + +static cairo_bool_t +_cairo_surface_wrapper_needs_device_transform (cairo_surface_wrapper_t *wrapper) +{ + return + (wrapper->has_extents && (wrapper->extents.x | wrapper->extents.y)) || + ! _cairo_matrix_is_identity (&wrapper->transform) || + ! _cairo_matrix_is_identity (&wrapper->target->device_transform); +} + +void +_cairo_surface_wrapper_intersect_extents (cairo_surface_wrapper_t *wrapper, + const cairo_rectangle_int_t *extents) +{ + if (! wrapper->has_extents) { + wrapper->extents = *extents; + wrapper->has_extents = TRUE; + } else + _cairo_rectangle_intersect (&wrapper->extents, extents); + + wrapper->needs_transform = + _cairo_surface_wrapper_needs_device_transform (wrapper); +} + +void +_cairo_surface_wrapper_set_inverse_transform (cairo_surface_wrapper_t *wrapper, + const cairo_matrix_t *transform) +{ + cairo_status_t status; + + if (transform == NULL || _cairo_matrix_is_identity (transform)) { + cairo_matrix_init_identity (&wrapper->transform); + + wrapper->needs_transform = + _cairo_surface_wrapper_needs_device_transform (wrapper); + } else { + wrapper->transform = *transform; + status = cairo_matrix_invert (&wrapper->transform); + /* should always be invertible unless given pathological input */ + assert (status == CAIRO_STATUS_SUCCESS); + + wrapper->needs_transform = TRUE; + } +} + +void +_cairo_surface_wrapper_set_clip (cairo_surface_wrapper_t *wrapper, + const cairo_clip_t *clip) +{ + wrapper->clip = clip; +} + +void +_cairo_surface_wrapper_get_font_options (cairo_surface_wrapper_t *wrapper, + cairo_font_options_t *options) +{ + cairo_surface_get_font_options (wrapper->target, options); +} + +cairo_surface_t * +_cairo_surface_wrapper_snapshot (cairo_surface_wrapper_t *wrapper) +{ + if (wrapper->target->backend->snapshot) + return wrapper->target->backend->snapshot (wrapper->target); + + return NULL; +} + +cairo_bool_t +_cairo_surface_wrapper_has_show_text_glyphs (cairo_surface_wrapper_t *wrapper) +{ + return cairo_surface_has_show_text_glyphs (wrapper->target); +} + +void +_cairo_surface_wrapper_init (cairo_surface_wrapper_t *wrapper, + cairo_surface_t *target) +{ + wrapper->target = cairo_surface_reference (target); + cairo_matrix_init_identity (&wrapper->transform); + wrapper->has_extents = FALSE; + wrapper->extents.x = wrapper->extents.y = 0; + wrapper->clip = NULL; + wrapper->source_region_id = 0; + wrapper->mask_region_id = 0; + + wrapper->needs_transform = FALSE; + if (target) { + wrapper->needs_transform = + ! _cairo_matrix_is_identity (&target->device_transform); + } +} + +void +_cairo_surface_wrapper_fini (cairo_surface_wrapper_t *wrapper) +{ + cairo_surface_destroy (wrapper->target); +} + +cairo_bool_t +_cairo_surface_wrapper_get_target_extents (cairo_surface_wrapper_t *wrapper, + cairo_bool_t surface_is_unbounded, + cairo_rectangle_int_t *extents) +{ + cairo_rectangle_int_t clip; + cairo_bool_t has_clip = FALSE; + + if (!surface_is_unbounded) + has_clip = _cairo_surface_get_extents (wrapper->target, &clip); + + if (wrapper->clip) { + if (has_clip) { + if (! _cairo_rectangle_intersect (&clip, + _cairo_clip_get_extents (wrapper->clip))) + return FALSE; + } else { + has_clip = TRUE; + clip = *_cairo_clip_get_extents (wrapper->clip); + } + } + + if (has_clip && wrapper->needs_transform) { + cairo_matrix_t m; + double x1, y1, x2, y2; + + _cairo_surface_wrapper_get_inverse_transform (wrapper, &m); + + x1 = clip.x; + y1 = clip.y; + x2 = clip.x + clip.width; + y2 = clip.y + clip.height; + + _cairo_matrix_transform_bounding_box (&m, &x1, &y1, &x2, &y2, NULL); + + clip.x = floor (x1); + clip.y = floor (y1); + clip.width = ceil (x2) - clip.x; + clip.height = ceil (y2) - clip.y; + } + + if (has_clip) { + if (wrapper->has_extents) { + *extents = wrapper->extents; + return _cairo_rectangle_intersect (extents, &clip); + } else { + *extents = clip; + return TRUE; + } + } else if (wrapper->has_extents) { + *extents = wrapper->extents; + return TRUE; + } else { + _cairo_unbounded_rectangle_init (extents); + return TRUE; + } +} diff --git a/local/recipes/libs/cairo/source/src/cairo-surface.c b/local/recipes/libs/cairo/source/src/cairo-surface.c new file mode 100644 index 0000000000..86c1837b9b --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-surface.c @@ -0,0 +1,3196 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" + +#include "cairo-array-private.h" +#include "cairo-clip-inline.h" +#include "cairo-clip-private.h" +#include "cairo-damage-private.h" +#include "cairo-device-private.h" +#include "cairo-error-private.h" +#include "cairo-list-inline.h" +#include "cairo-image-surface-inline.h" +#include "cairo-recording-surface-private.h" +#include "cairo-region-private.h" +#include "cairo-surface-inline.h" + +/** + * SECTION:cairo-surface + * @Title: cairo_surface_t + * @Short_Description: Base class for surfaces + * @See_Also: #cairo_t, #cairo_pattern_t + * + * #cairo_surface_t is the abstract type representing all different drawing + * targets that cairo can render to. The actual drawings are + * performed using a cairo context. + * + * A cairo surface is created by using backend-specific + * constructors, typically of the form + * cairo_backend_surface_create(). + * + * Most surface types allow accessing the surface without using Cairo + * functions. If you do this, keep in mind that it is mandatory that you call + * cairo_surface_flush() before reading from or writing to the surface and that + * you must use cairo_surface_mark_dirty() after modifying it. + * + * Directly modifying an image surface + * + * void + * modify_image_surface (cairo_surface_t *surface) + * { + * unsigned char *data; + * int width, height, stride; + * + * // flush to ensure all writing to the image was done + * cairo_surface_flush (surface); + * + * // modify the image + * data = cairo_image_surface_get_data (surface); + * width = cairo_image_surface_get_width (surface); + * height = cairo_image_surface_get_height (surface); + * stride = cairo_image_surface_get_stride (surface); + * modify_image_data (data, width, height, stride); + * + * // mark the image dirty so Cairo clears its caches. + * cairo_surface_mark_dirty (surface); + * } + * + * + * Note that for other surface types it might be necessary to acquire the + * surface's device first. See cairo_device_acquire() for a discussion of + * devices. + **/ + +#define DEFINE_NIL_SURFACE(status, name) \ +const cairo_surface_t name = { \ + NULL, /* backend */ \ + NULL, /* device */ \ + CAIRO_SURFACE_TYPE_IMAGE, /* type */ \ + CAIRO_CONTENT_COLOR, /* content */ \ + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ \ + status, /* status */ \ + 0, /* unique id */ \ + 0, /* serial */ \ + NULL, /* damage */ \ + FALSE, /* _finishing */ \ + FALSE, /* finished */ \ + TRUE, /* is_clear */ \ + FALSE, /* has_font_options */ \ + FALSE, /* owns_device */ \ + FALSE, /* is_vector */ \ + { 0, 0, 0, NULL, }, /* user_data */ \ + { 0, 0, 0, NULL, }, /* mime_data */ \ + { 1.0, 0.0, 0.0, 1.0, 0.0, 0.0 }, /* device_transform */ \ + { 1.0, 0.0, 0.0, 1.0, 0.0, 0.0 }, /* device_transform_inverse */ \ + { NULL, NULL }, /* device_transform_observers */ \ + 0.0, /* x_resolution */ \ + 0.0, /* y_resolution */ \ + 0.0, /* x_fallback_resolution */ \ + 0.0, /* y_fallback_resolution */ \ + NULL, /* snapshot_of */ \ + NULL, /* snapshot_detach */ \ + { NULL, NULL }, /* snapshots */ \ + { NULL, NULL }, /* snapshot */ \ + { /* font options begin */\ + CAIRO_ANTIALIAS_DEFAULT, /* antialias */ \ + CAIRO_SUBPIXEL_ORDER_DEFAULT, /* subpixel_order */ \ + CAIRO_LCD_FILTER_DEFAULT, /* lcd_filter */ \ + CAIRO_HINT_STYLE_DEFAULT, /* hint_style */ \ + CAIRO_HINT_METRICS_DEFAULT, /* hint_metrics */ \ + CAIRO_ROUND_GLYPH_POS_DEFAULT, /* round_glyph_positions */ \ + NULL, /* variations */ \ + CAIRO_COLOR_MODE_DEFAULT, /* color mode */ \ + CAIRO_COLOR_PALETTE_DEFAULT, /* color palette */ \ + NULL, 0, /* custom palette */ \ + }, /* font_options end */ \ + NULL, /* foreground_source */ \ + FALSE, /* foreground_used */ \ +} + +/* XXX error object! */ + +static DEFINE_NIL_SURFACE(CAIRO_STATUS_NO_MEMORY, _cairo_surface_nil); +static DEFINE_NIL_SURFACE(CAIRO_STATUS_SURFACE_TYPE_MISMATCH, _cairo_surface_nil_surface_type_mismatch); +static DEFINE_NIL_SURFACE(CAIRO_STATUS_INVALID_STATUS, _cairo_surface_nil_invalid_status); +static DEFINE_NIL_SURFACE(CAIRO_STATUS_INVALID_CONTENT, _cairo_surface_nil_invalid_content); +static DEFINE_NIL_SURFACE(CAIRO_STATUS_INVALID_FORMAT, _cairo_surface_nil_invalid_format); +static DEFINE_NIL_SURFACE(CAIRO_STATUS_INVALID_VISUAL, _cairo_surface_nil_invalid_visual); +static DEFINE_NIL_SURFACE(CAIRO_STATUS_FILE_NOT_FOUND, _cairo_surface_nil_file_not_found); +static DEFINE_NIL_SURFACE(CAIRO_STATUS_TEMP_FILE_ERROR, _cairo_surface_nil_temp_file_error); +static DEFINE_NIL_SURFACE(CAIRO_STATUS_READ_ERROR, _cairo_surface_nil_read_error); +static DEFINE_NIL_SURFACE(CAIRO_STATUS_WRITE_ERROR, _cairo_surface_nil_write_error); +static DEFINE_NIL_SURFACE(CAIRO_STATUS_INVALID_STRIDE, _cairo_surface_nil_invalid_stride); +static DEFINE_NIL_SURFACE(CAIRO_STATUS_INVALID_SIZE, _cairo_surface_nil_invalid_size); +static DEFINE_NIL_SURFACE(CAIRO_STATUS_DEVICE_TYPE_MISMATCH, _cairo_surface_nil_device_type_mismatch); +static DEFINE_NIL_SURFACE(CAIRO_STATUS_DEVICE_ERROR, _cairo_surface_nil_device_error); +static DEFINE_NIL_SURFACE(CAIRO_STATUS_PNG_ERROR, _cairo_surface_nil_png_error); + +static DEFINE_NIL_SURFACE(CAIRO_INT_STATUS_UNSUPPORTED, _cairo_surface_nil_unsupported); +static DEFINE_NIL_SURFACE(CAIRO_INT_STATUS_NOTHING_TO_DO, _cairo_surface_nil_nothing_to_do); + +static void _cairo_surface_finish_snapshots (cairo_surface_t *surface); +static void _cairo_surface_finish (cairo_surface_t *surface); + +/** + * _cairo_surface_set_error: + * @surface: a surface + * @status: a status value indicating an error + * + * Atomically sets surface->status to @status and calls _cairo_error; + * Does nothing if status is %CAIRO_STATUS_SUCCESS or any of the internal + * status values. + * + * All assignments of an error status to surface->status should happen + * through _cairo_surface_set_error(). Note that due to the nature of + * the atomic operation, it is not safe to call this function on the + * nil objects. + * + * The purpose of this function is to allow the user to set a + * breakpoint in _cairo_error() to generate a stack trace for when the + * user causes cairo to detect an error. + * + * Return value: the error status. + **/ +cairo_int_status_t +_cairo_surface_set_error (cairo_surface_t *surface, + cairo_int_status_t status) +{ + /* NOTHING_TO_DO is magic. We use it to break out of the inner-most + * surface function, but anything higher just sees "success". + */ + if (status == CAIRO_INT_STATUS_NOTHING_TO_DO) + status = CAIRO_INT_STATUS_SUCCESS; + + if (status == CAIRO_INT_STATUS_SUCCESS || + status >= (int)CAIRO_INT_STATUS_LAST_STATUS) + return status; + + /* Don't overwrite an existing error. This preserves the first + * error, which is the most significant. */ + _cairo_status_set_error (&surface->status, (cairo_status_t)status); + + return _cairo_error (status); +} + +/** + * cairo_surface_get_type: + * @surface: a #cairo_surface_t + * + * This function returns the type of the backend used to create + * a surface. See #cairo_surface_type_t for available types. + * + * Return value: The type of @surface. + * + * Since: 1.2 + **/ +cairo_surface_type_t +cairo_surface_get_type (cairo_surface_t *surface) +{ + /* We don't use surface->backend->type here so that some of the + * special "wrapper" surfaces such as cairo_paginated_surface_t + * can override surface->type with the type of the "child" + * surface. */ + return surface->type; +} + +/** + * cairo_surface_get_content: + * @surface: a #cairo_surface_t + * + * This function returns the content type of @surface which indicates + * whether the surface contains color and/or alpha information. See + * #cairo_content_t. + * + * Return value: The content type of @surface. + * + * Since: 1.2 + **/ +cairo_content_t +cairo_surface_get_content (cairo_surface_t *surface) +{ + return surface->content; +} + +/** + * cairo_surface_status: + * @surface: a #cairo_surface_t + * + * Checks whether an error has previously occurred for this + * surface. + * + * Return value: %CAIRO_STATUS_SUCCESS, %CAIRO_STATUS_NULL_POINTER, + * %CAIRO_STATUS_NO_MEMORY, %CAIRO_STATUS_READ_ERROR, + * %CAIRO_STATUS_INVALID_CONTENT, %CAIRO_STATUS_INVALID_FORMAT, or + * %CAIRO_STATUS_INVALID_VISUAL. + * + * Since: 1.0 + **/ +cairo_status_t +cairo_surface_status (cairo_surface_t *surface) +{ + return surface->status; +} + +static unsigned int +_cairo_surface_allocate_unique_id (void) +{ + static cairo_atomic_int_t unique_id; + +#if CAIRO_NO_MUTEX + if (++unique_id == 0) + unique_id = 1; + return unique_id; +#else + int old, id; + + do { + old = _cairo_atomic_uint_get (&unique_id); + id = old + 1; + if (id == 0) + id = 1; + } while (! _cairo_atomic_uint_cmpxchg (&unique_id, old, id)); + + return id; +#endif +} + +/** + * cairo_surface_get_device: + * @surface: a #cairo_surface_t + * + * This function returns the device for a @surface. + * See #cairo_device_t. + * + * Return value: The device for @surface or %NULL if the surface does + * not have an associated device. + * + * Since: 1.10 + **/ +cairo_device_t * +cairo_surface_get_device (cairo_surface_t *surface) +{ + if (unlikely (surface->status)) + return _cairo_device_create_in_error (surface->status); + + return surface->device; +} + +static cairo_bool_t +_cairo_surface_has_snapshots (cairo_surface_t *surface) +{ + return ! cairo_list_is_empty (&surface->snapshots); +} + +static cairo_bool_t +_cairo_surface_has_mime_data (cairo_surface_t *surface) +{ + return surface->mime_data.num_elements != 0; +} + +static void +_cairo_surface_detach_mime_data (cairo_surface_t *surface) +{ + if (! _cairo_surface_has_mime_data (surface)) + return; + + _cairo_user_data_array_fini (&surface->mime_data); + _cairo_user_data_array_init (&surface->mime_data); +} + +static void +_cairo_surface_detach_snapshots (cairo_surface_t *surface) +{ + while (_cairo_surface_has_snapshots (surface)) { + _cairo_surface_detach_snapshot (cairo_list_first_entry (&surface->snapshots, + cairo_surface_t, + snapshot)); + } +} + +void +_cairo_surface_detach_snapshot (cairo_surface_t *snapshot) +{ + assert (snapshot->snapshot_of != NULL); + + snapshot->snapshot_of = NULL; + cairo_list_del (&snapshot->snapshot); + + if (snapshot->snapshot_detach != NULL) + snapshot->snapshot_detach (snapshot); + + cairo_surface_destroy (snapshot); +} + +void +_cairo_surface_attach_snapshot (cairo_surface_t *surface, + cairo_surface_t *snapshot, + cairo_surface_func_t detach_func) +{ + assert (surface != snapshot); + assert (snapshot->snapshot_of != surface); + + cairo_surface_reference (snapshot); + + if (snapshot->snapshot_of != NULL) + _cairo_surface_detach_snapshot (snapshot); + + snapshot->snapshot_of = surface; + snapshot->snapshot_detach = detach_func; + + cairo_list_add (&snapshot->snapshot, &surface->snapshots); + + assert (_cairo_surface_has_snapshot (surface, snapshot->backend) == snapshot); +} + +cairo_surface_t * +_cairo_surface_has_snapshot (cairo_surface_t *surface, + const cairo_surface_backend_t *backend) +{ + cairo_surface_t *snapshot; + + cairo_list_foreach_entry (snapshot, cairo_surface_t, + &surface->snapshots, snapshot) + { + if (snapshot->backend == backend) + return snapshot; + } + + return NULL; +} + +cairo_status_t +_cairo_surface_begin_modification (cairo_surface_t *surface) +{ + assert (surface->status == CAIRO_STATUS_SUCCESS); + assert (! surface->finished); + + return _cairo_surface_flush (surface, 1); +} + +void +_cairo_surface_init (cairo_surface_t *surface, + const cairo_surface_backend_t *backend, + cairo_device_t *device, + cairo_content_t content, + cairo_bool_t is_vector) +{ + CAIRO_MUTEX_INITIALIZE (); + + surface->backend = backend; + surface->device = cairo_device_reference (device); + surface->content = content; + surface->type = backend->type; + surface->is_vector = is_vector; + + CAIRO_REFERENCE_COUNT_INIT (&surface->ref_count, 1); + surface->status = CAIRO_STATUS_SUCCESS; + surface->unique_id = _cairo_surface_allocate_unique_id (); + surface->finished = FALSE; + surface->_finishing = FALSE; + surface->is_clear = FALSE; + surface->serial = 0; + surface->damage = NULL; + surface->owns_device = (device != NULL); + + _cairo_user_data_array_init (&surface->user_data); + _cairo_user_data_array_init (&surface->mime_data); + + cairo_matrix_init_identity (&surface->device_transform); + cairo_matrix_init_identity (&surface->device_transform_inverse); + cairo_list_init (&surface->device_transform_observers); + + surface->x_resolution = CAIRO_SURFACE_RESOLUTION_DEFAULT; + surface->y_resolution = CAIRO_SURFACE_RESOLUTION_DEFAULT; + + surface->x_fallback_resolution = CAIRO_SURFACE_FALLBACK_RESOLUTION_DEFAULT; + surface->y_fallback_resolution = CAIRO_SURFACE_FALLBACK_RESOLUTION_DEFAULT; + + cairo_list_init (&surface->snapshots); + surface->snapshot_of = NULL; + + surface->has_font_options = FALSE; + + surface->foreground_source = NULL; + surface->foreground_used = FALSE; +} + +static void +_cairo_surface_copy_similar_properties (cairo_surface_t *surface, + cairo_surface_t *other) +{ + if (other->has_font_options || other->backend != surface->backend) { + cairo_font_options_t options; + + cairo_surface_get_font_options (other, &options); + _cairo_surface_set_font_options (surface, &options); + _cairo_font_options_fini (&options); + } + + cairo_surface_set_fallback_resolution (surface, + other->x_fallback_resolution, + other->y_fallback_resolution); +} + +/** + * cairo_surface_create_similar: + * @other: an existing surface used to select the backend of the new surface + * @content: the content for the new surface + * @width: width of the new surface, (in device-space units) + * @height: height of the new surface (in device-space units) + * + * Create a new surface that is as compatible as possible with an + * existing surface. For example the new surface will have the same + * device scale, fallback resolution and font options as + * @other. Generally, the new surface will also use the same backend + * as @other, unless that is not possible for some reason. The type of + * the returned surface may be examined with + * cairo_surface_get_type(). + * + * Initially the surface contents are all 0 (transparent if contents + * have transparency, black otherwise.) + * + * Use cairo_surface_create_similar_image() if you need an image surface + * which can be painted quickly to the target surface. + * + * Return value: a pointer to the newly allocated surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if @other is already in an error state + * or any other error occurs. + * + * Since: 1.0 + **/ +cairo_surface_t * +cairo_surface_create_similar (cairo_surface_t *other, + cairo_content_t content, + int width, + int height) +{ + cairo_surface_t *surface; + cairo_status_t status; + cairo_solid_pattern_t pattern; + + if (unlikely (other->status)) + return _cairo_surface_create_in_error (other->status); + if (unlikely (other->finished)) + return _cairo_surface_create_in_error (CAIRO_STATUS_SURFACE_FINISHED); + if (unlikely (width < 0 || height < 0)) + return _cairo_surface_create_in_error (CAIRO_STATUS_INVALID_SIZE); + if (unlikely (! CAIRO_CONTENT_VALID (content))) + return _cairo_surface_create_in_error (CAIRO_STATUS_INVALID_CONTENT); + + /* We inherit the device scale, so create a larger surface */ + width = width * other->device_transform.xx; + height = height * other->device_transform.yy; + + surface = NULL; + if (other->backend->create_similar) + surface = other->backend->create_similar (other, content, width, height); + if (surface == NULL) + surface = cairo_surface_create_similar_image (other, + _cairo_format_from_content (content), + width, height); + + if (unlikely (surface->status)) + return surface; + + _cairo_surface_copy_similar_properties (surface, other); + cairo_surface_set_device_scale (surface, + other->device_transform.xx, + other->device_transform.yy); + + if (unlikely (surface->status)) + return surface; + + _cairo_pattern_init_solid (&pattern, CAIRO_COLOR_TRANSPARENT); + status = _cairo_surface_paint (surface, + CAIRO_OPERATOR_CLEAR, + &pattern.base, NULL); + if (unlikely (status)) { + cairo_surface_destroy (surface); + surface = _cairo_surface_create_in_error (status); + } + + assert (surface->is_clear); + + return surface; +} + +/** + * cairo_surface_create_similar_image: + * @other: an existing surface used to select the preference of the new surface + * @format: the format for the new surface + * @width: width of the new surface, (in pixels) + * @height: height of the new surface (in pixels) + * + * Create a new image surface that is as compatible as possible for uploading + * to and the use in conjunction with an existing surface. However, this surface + * can still be used like any normal image surface. Unlike + * cairo_surface_create_similar() the new image surface won't inherit + * the device scale from @other. + * + * Initially the surface contents are all 0 (transparent if contents + * have transparency, black otherwise.) + * + * Use cairo_surface_create_similar() if you don't need an image surface. + * + * Return value: a pointer to the newly allocated image surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if @other is already in an error state + * or any other error occurs. + * + * Since: 1.12 + **/ +cairo_surface_t * +cairo_surface_create_similar_image (cairo_surface_t *other, + cairo_format_t format, + int width, + int height) +{ + cairo_surface_t *image; + + if (unlikely (other->status)) + return _cairo_surface_create_in_error (other->status); + if (unlikely (other->finished)) + return _cairo_surface_create_in_error (CAIRO_STATUS_SURFACE_FINISHED); + + if (unlikely (width < 0 || height < 0)) + return _cairo_surface_create_in_error (CAIRO_STATUS_INVALID_SIZE); + if (unlikely (! CAIRO_FORMAT_VALID (format))) + return _cairo_surface_create_in_error (CAIRO_STATUS_INVALID_FORMAT); + + image = NULL; + if (other->backend->create_similar_image) + image = other->backend->create_similar_image (other, + format, width, height); + if (image == NULL) + image = cairo_image_surface_create (format, width, height); + + assert (image->is_clear); + + return image; +} + +/** + * _cairo_surface_map_to_image: + * @surface: an existing surface used to extract the image from + * @extents: limit the extraction to an rectangular region + * + * Returns an image surface that is the most efficient mechanism for + * modifying the backing store of the target surface. The region + * retrieved is limited to @extents. + * + * Note, the use of the original surface as a target or source whilst + * it is mapped is undefined. The result of mapping the surface + * multiple times is undefined. Calling cairo_surface_destroy() or + * cairo_surface_finish() on the resulting image surface results in + * undefined behavior. Changing the device transform of the image + * surface or of @surface before the image surface is unmapped results + * in undefined behavior. + * + * Assumes that @surface is valid (CAIRO_STATUS_SUCCESS, + * non-finished). + * + * Return value: a pointer to the newly allocated image surface. The + * caller must use _cairo_surface_unmap_image() to destroy this image + * surface. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if @other is already in an error state + * or any other error occurs. + * + * The returned image might have a %CAIRO_FORMAT_INVALID format. + **/ +cairo_image_surface_t * +_cairo_surface_map_to_image (cairo_surface_t *surface, + const cairo_rectangle_int_t *extents) +{ + cairo_image_surface_t *image = NULL; + + assert (extents != NULL); + + /* TODO: require map_to_image != NULL */ + if (surface->backend->map_to_image) + image = surface->backend->map_to_image (surface, extents); + + if (image == NULL) + image = _cairo_image_surface_clone_subimage (surface, extents); + + return image; +} + +/** + * _cairo_surface_unmap_image: + * @surface: the surface passed to _cairo_surface_map_to_image(). + * @image: the currently mapped image + * + * Unmaps the image surface as returned from + * _cairo_surface_map_to_image(). + * + * The content of the image will be uploaded to the target surface. + * Afterwards, the image is destroyed. + * + * Using an image surface which wasn't returned by + * _cairo_surface_map_to_image() results in undefined behavior. + * + * An image surface in error status can be passed to + * _cairo_surface_unmap_image(). + * + * Return value: the unmap status. + * + * Even if the unmap status is not successful, @image is destroyed. + **/ +cairo_int_status_t +_cairo_surface_unmap_image (cairo_surface_t *surface, + cairo_image_surface_t *image) +{ + cairo_surface_pattern_t pattern; + cairo_rectangle_int_t extents; + cairo_clip_t *clip; + cairo_int_status_t status; + + /* map_to_image can return error surfaces */ + if (unlikely (image->base.status)) { + status = image->base.status; + goto destroy; + } + + /* If the image is untouched just skip the update */ + if (image->base.serial == 0) { + status = CAIRO_STATUS_SUCCESS; + goto destroy; + } + + /* TODO: require unmap_image != NULL */ + if (surface->backend->unmap_image && + ! _cairo_image_surface_is_clone (image)) + { + status = surface->backend->unmap_image (surface, image); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + } + + _cairo_pattern_init_for_surface (&pattern, &image->base); + pattern.base.filter = CAIRO_FILTER_NEAREST; + + /* We have to apply the translate from map_to_image's extents.x and .y */ + cairo_matrix_init_translate (&pattern.base.matrix, + image->base.device_transform.x0, + image->base.device_transform.y0); + + /* And we also have to clip the operation to the image's extents */ + extents.x = image->base.device_transform_inverse.x0; + extents.y = image->base.device_transform_inverse.y0; + extents.width = image->width; + extents.height = image->height; + clip = _cairo_clip_intersect_rectangle (NULL, &extents); + + status = _cairo_surface_paint (surface, + CAIRO_OPERATOR_SOURCE, + &pattern.base, + clip); + + _cairo_pattern_fini (&pattern.base); + _cairo_clip_destroy (clip); + +destroy: + cairo_surface_finish (&image->base); + cairo_surface_destroy (&image->base); + + return status; +} + +/** + * cairo_surface_map_to_image: + * @surface: an existing surface used to extract the image from + * @extents: limit the extraction to an rectangular region + * + * Returns an image surface that is the most efficient mechanism for + * modifying the backing store of the target surface. The region retrieved + * may be limited to the @extents or %NULL for the whole surface + * + * Note, the use of the original surface as a target or source whilst + * it is mapped is undefined. The result of mapping the surface + * multiple times is undefined. Calling cairo_surface_destroy() or + * cairo_surface_finish() on the resulting image surface results in + * undefined behavior. Changing the device transform of the image + * surface or of @surface before the image surface is unmapped results + * in undefined behavior. + * + * Return value: a pointer to the newly allocated image surface. The caller + * must use cairo_surface_unmap_image() to destroy this image surface. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if @other is already in an error state + * or any other error occurs. If the returned pointer does not have an + * error status, it is guaranteed to be an image surface whose format + * is not %CAIRO_FORMAT_INVALID. + * + * Since: 1.12 + **/ +cairo_surface_t * +cairo_surface_map_to_image (cairo_surface_t *surface, + const cairo_rectangle_int_t *extents) +{ + cairo_rectangle_int_t rect; + cairo_image_surface_t *image; + cairo_status_t status; + + if (unlikely (surface->status)) + return _cairo_surface_create_in_error (surface->status); + if (unlikely (surface->finished)) + return _cairo_surface_create_in_error (CAIRO_STATUS_SURFACE_FINISHED); + + if (extents == NULL) { + if (unlikely (! surface->backend->get_extents (surface, &rect))) + return _cairo_surface_create_in_error (CAIRO_STATUS_INVALID_SIZE); + + extents = ▭ + } else { + cairo_rectangle_int_t surface_extents; + + /* If this surface is bounded, we can't map parts + * that are outside of it. */ + if (likely (surface->backend->get_extents (surface, &surface_extents))) { + if (unlikely (! _cairo_rectangle_contains_rectangle (&surface_extents, extents))) + return _cairo_surface_create_in_error (CAIRO_STATUS_INVALID_SIZE); + } + } + + image = _cairo_surface_map_to_image (surface, extents); + + status = image->base.status; + if (unlikely (status)) { + cairo_surface_destroy (&image->base); + return _cairo_surface_create_in_error (status); + } + + if (image->format == CAIRO_FORMAT_INVALID) { + cairo_surface_destroy (&image->base); + image = _cairo_image_surface_clone_subimage (surface, extents); + } + + return &image->base; +} + +/** + * cairo_surface_unmap_image: + * @surface: the surface passed to cairo_surface_map_to_image(). + * @image: the currently mapped image + * + * Unmaps the image surface as returned from #cairo_surface_map_to_image(). + * + * The content of the image will be uploaded to the target surface. + * Afterwards, the image is destroyed. + * + * Using an image surface which wasn't returned by cairo_surface_map_to_image() + * results in undefined behavior. + * + * Since: 1.12 + **/ +void +cairo_surface_unmap_image (cairo_surface_t *surface, + cairo_surface_t *image) +{ + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + + if (unlikely (surface->status)) { + status = surface->status; + goto error; + } + if (unlikely (surface->finished)) { + status = _cairo_error (CAIRO_STATUS_SURFACE_FINISHED); + goto error; + } + if (unlikely (image->status)) { + status = image->status; + goto error; + } + if (unlikely (image->finished)) { + status = _cairo_error (CAIRO_STATUS_SURFACE_FINISHED); + goto error; + } + if (unlikely (! _cairo_surface_is_image (image))) { + status = _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + goto error; + } + + status = _cairo_surface_unmap_image (surface, + (cairo_image_surface_t *) image); + if (unlikely (status)) + _cairo_surface_set_error (surface, status); + + return; + +error: + _cairo_surface_set_error (surface, status); + cairo_surface_finish (image); + cairo_surface_destroy (image); +} + +cairo_surface_t * +_cairo_surface_create_scratch (cairo_surface_t *other, + cairo_content_t content, + int width, + int height, + const cairo_color_t *color) +{ + cairo_surface_t *surface; + cairo_status_t status; + cairo_solid_pattern_t pattern; + + if (unlikely (other->status)) + return _cairo_surface_create_in_error (other->status); + + surface = NULL; + if (other->backend->create_similar) + surface = other->backend->create_similar (other, content, width, height); + if (surface == NULL) + surface = cairo_surface_create_similar_image (other, + _cairo_format_from_content (content), + width, height); + + if (unlikely (surface->status)) + return surface; + + _cairo_surface_copy_similar_properties (surface, other); + + if (unlikely (surface->status)) + return surface; + + if (color) { + _cairo_pattern_init_solid (&pattern, color); + status = _cairo_surface_paint (surface, + color == CAIRO_COLOR_TRANSPARENT ? + CAIRO_OPERATOR_CLEAR : CAIRO_OPERATOR_SOURCE, + &pattern.base, NULL); + if (unlikely (status)) { + cairo_surface_destroy (surface); + surface = _cairo_surface_create_in_error (status); + } + } + + return surface; +} + +/** + * cairo_surface_reference: + * @surface: a #cairo_surface_t + * + * Increases the reference count on @surface by one. This prevents + * @surface from being destroyed until a matching call to + * cairo_surface_destroy() is made. + * + * Use cairo_surface_get_reference_count() to get the number of + * references to a #cairo_surface_t. + * + * Return value: the referenced #cairo_surface_t. + * + * Since: 1.0 + **/ +cairo_surface_t * +cairo_surface_reference (cairo_surface_t *surface) +{ + if (surface == NULL || + CAIRO_REFERENCE_COUNT_IS_INVALID (&surface->ref_count)) + return surface; + + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&surface->ref_count)); + + _cairo_reference_count_inc (&surface->ref_count); + + return surface; +} + +/** + * cairo_surface_destroy: + * @surface: a #cairo_surface_t + * + * Decreases the reference count on @surface by one. If the result is + * zero, then @surface and all associated resources are freed. See + * cairo_surface_reference(). + * + * Since: 1.0 + **/ +void +cairo_surface_destroy (cairo_surface_t *surface) +{ + if (surface == NULL || + CAIRO_REFERENCE_COUNT_IS_INVALID (&surface->ref_count)) + return; + + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&surface->ref_count)); + + if (! _cairo_reference_count_dec_and_test (&surface->ref_count)) + return; + + assert (surface->snapshot_of == NULL); + + if (! surface->finished) { + _cairo_surface_finish_snapshots (surface); + /* We may have been referenced by a snapshot prior to have + * detaching it with the copy-on-write. + */ + if (CAIRO_REFERENCE_COUNT_GET_VALUE (&surface->ref_count)) + return; + + _cairo_surface_finish (surface); + } + + if (surface->damage) + _cairo_damage_destroy (surface->damage); + + _cairo_user_data_array_fini (&surface->user_data); + _cairo_user_data_array_fini (&surface->mime_data); + + if (surface->foreground_source) + cairo_pattern_destroy (surface->foreground_source); + + if (surface->owns_device) + cairo_device_destroy (surface->device); + + if (surface->has_font_options) + _cairo_font_options_fini (&surface->font_options); + + assert (surface->snapshot_of == NULL); + assert (! _cairo_surface_has_snapshots (surface)); + /* paranoid check that nobody took a reference whilst finishing */ + assert (! CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&surface->ref_count)); + + free (surface); +} + +/** + * cairo_surface_get_reference_count: + * @surface: a #cairo_surface_t + * + * Returns the current reference count of @surface. + * + * Return value: the current reference count of @surface. If the + * object is a nil object, 0 will be returned. + * + * Since: 1.4 + **/ +unsigned int +cairo_surface_get_reference_count (cairo_surface_t *surface) +{ + if (surface == NULL || + CAIRO_REFERENCE_COUNT_IS_INVALID (&surface->ref_count)) + return 0; + + return CAIRO_REFERENCE_COUNT_GET_VALUE (&surface->ref_count); +} + +static void +_cairo_surface_finish_snapshots (cairo_surface_t *surface) +{ + cairo_status_t status; + + /* update the snapshots *before* we declare the surface as finished */ + surface->_finishing = TRUE; + status = _cairo_surface_flush (surface, 0); + (void) status; +} + +static void +_cairo_surface_finish (cairo_surface_t *surface) +{ + cairo_status_t status; + + /* call finish even if in error mode */ + if (surface->backend->finish) { + status = surface->backend->finish (surface); + if (unlikely (status)) + _cairo_surface_set_error (surface, status); + } + + surface->finished = TRUE; + + assert (surface->snapshot_of == NULL); + assert (!_cairo_surface_has_snapshots (surface)); +} + +/** + * cairo_surface_finish: + * @surface: the #cairo_surface_t to finish + * + * This function finishes the surface and drops all references to + * external resources. For example, for the Xlib backend it means + * that cairo will no longer access the drawable, which can be freed. + * After calling cairo_surface_finish() the only valid operations on a + * surface are checking status, getting and setting user, referencing + * and destroying, and flushing and finishing it. + * Further drawing to the surface will not affect the + * surface but will instead trigger a %CAIRO_STATUS_SURFACE_FINISHED + * error. + * + * When the last call to cairo_surface_destroy() decreases the + * reference count to zero, cairo will call cairo_surface_finish() if + * it hasn't been called already, before freeing the resources + * associated with the surface. + * + * Since: 1.0 + **/ +void +cairo_surface_finish (cairo_surface_t *surface) +{ + if (surface == NULL) + return; + + if (CAIRO_REFERENCE_COUNT_IS_INVALID (&surface->ref_count)) + return; + + if (surface->finished) + return; + + /* We have to be careful when decoupling potential reference cycles */ + cairo_surface_reference (surface); + + _cairo_surface_finish_snapshots (surface); + /* XXX need to block and wait for snapshot references */ + _cairo_surface_finish (surface); + + cairo_surface_destroy (surface); +} + +/** + * _cairo_surface_release_device_reference: + * @surface: a #cairo_surface_t + * + * This function makes @surface release the reference to its device. The + * function is intended to be used for avoiding cycling references for + * surfaces that are owned by their device, for example cache surfaces. + * Note that the @surface will still assume that the device is available. + * So it is the caller's responsibility to ensure the device stays around + * until the @surface is destroyed. Just calling cairo_surface_finish() is + * not enough. + **/ +void +_cairo_surface_release_device_reference (cairo_surface_t *surface) +{ + assert (surface->owns_device); + + cairo_device_destroy (surface->device); + surface->owns_device = FALSE; +} + +/** + * cairo_surface_get_user_data: + * @surface: a #cairo_surface_t + * @key: the address of the #cairo_user_data_key_t the user data was + * attached to + * + * Return user data previously attached to @surface using the specified + * key. If no user data has been attached with the given key this + * function returns %NULL. + * + * Return value: the user data previously attached or %NULL. + * + * Since: 1.0 + **/ +void * +cairo_surface_get_user_data (cairo_surface_t *surface, + const cairo_user_data_key_t *key) +{ + /* Prevent reads of the array during teardown */ + if (! CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&surface->ref_count)) + return NULL; + + return _cairo_user_data_array_get_data (&surface->user_data, key); +} + +/** + * cairo_surface_set_user_data: + * @surface: a #cairo_surface_t + * @key: the address of a #cairo_user_data_key_t to attach the user data to + * @user_data: the user data to attach to the surface + * @destroy: a #cairo_destroy_func_t which will be called when the + * surface is destroyed or when new user data is attached using the + * same key. + * + * Attach user data to @surface. To remove user data from a surface, + * call this function with the key that was used to set it and %NULL + * for @data. + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY if a + * slot could not be allocated for the user data. + * + * Since: 1.0 + **/ +cairo_status_t +cairo_surface_set_user_data (cairo_surface_t *surface, + const cairo_user_data_key_t *key, + void *user_data, + cairo_destroy_func_t destroy) +{ + if (CAIRO_REFERENCE_COUNT_IS_INVALID (&surface->ref_count)) + return surface->status; + + if (! CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&surface->ref_count)) + return _cairo_error (CAIRO_STATUS_SURFACE_FINISHED); + + return _cairo_user_data_array_set_data (&surface->user_data, + key, user_data, destroy); +} + +/** + * cairo_surface_get_mime_data: + * @surface: a #cairo_surface_t + * @mime_type: the mime type of the image data + * @data: the image data to attached to the surface + * @length: the length of the image data + * + * Return mime data previously attached to @surface using the + * specified mime type. If no data has been attached with the given + * mime type, @data is set %NULL. + * + * Since: 1.10 + **/ +void +cairo_surface_get_mime_data (cairo_surface_t *surface, + const char *mime_type, + const unsigned char **data, + unsigned long *length) +{ + cairo_user_data_slot_t *slots; + int i, num_slots; + + *data = NULL; + *length = 0; + + /* Prevent reads of the array during teardown */ + if (! CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&surface->ref_count)) + return; + + /* The number of mime-types attached to a surface is usually small, + * typically zero. Therefore it is quicker to do a strcmp() against + * each key than it is to intern the string (i.e. compute a hash, + * search the hash table, and do a final strcmp). + */ + num_slots = surface->mime_data.num_elements; + slots = _cairo_array_index (&surface->mime_data, 0); + for (i = 0; i < num_slots; i++) { + if (slots[i].key != NULL && strcmp ((char *) slots[i].key, mime_type) == 0) { + cairo_mime_data_t *mime_data = slots[i].user_data; + + *data = mime_data->data; + *length = mime_data->length; + return; + } + } +} + +static void +_cairo_mime_data_destroy (void *ptr) +{ + cairo_mime_data_t *mime_data = ptr; + + if (! _cairo_reference_count_dec_and_test (&mime_data->ref_count)) + return; + + if (mime_data->destroy && mime_data->closure) + mime_data->destroy (mime_data->closure); + + free (mime_data); +} + + +static const char *_cairo_surface_image_mime_types[] = { + CAIRO_MIME_TYPE_JPEG, + CAIRO_MIME_TYPE_PNG, + CAIRO_MIME_TYPE_JP2, + CAIRO_MIME_TYPE_JBIG2, + CAIRO_MIME_TYPE_CCITT_FAX, +}; + +cairo_bool_t +_cairo_surface_has_mime_image (cairo_surface_t *surface) +{ + cairo_user_data_slot_t *slots; + int i, j, num_slots; + + /* Prevent reads of the array during teardown */ + if (! CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&surface->ref_count)) + return FALSE; + + /* The number of mime-types attached to a surface is usually small, + * typically zero. Therefore it is quicker to do a strcmp() against + * each key than it is to intern the string (i.e. compute a hash, + * search the hash table, and do a final strcmp). + */ + num_slots = surface->mime_data.num_elements; + slots = _cairo_array_index (&surface->mime_data, 0); + for (i = 0; i < num_slots; i++) { + if (slots[i].key != NULL) { + for (j = 0; j < ARRAY_LENGTH (_cairo_surface_image_mime_types); j++) { + if (strcmp ((char *) slots[i].key, _cairo_surface_image_mime_types[j]) == 0) + return TRUE; + } + } + } + + return FALSE; +} + +/** + * CAIRO_MIME_TYPE_CCITT_FAX: + * + * Group 3 or Group 4 CCITT facsimile encoding (International + * Telecommunication Union, Recommendations T.4 and T.6.) + * + * Since: 1.16 + **/ + +/** + * CAIRO_MIME_TYPE_CCITT_FAX_PARAMS: + * + * Decode parameters for Group 3 or Group 4 CCITT facsimile encoding. + * See [CCITT Fax Images][ccitt]. + * + * Since: 1.16 + **/ + +/** + * CAIRO_MIME_TYPE_EPS: + * + * Encapsulated PostScript file. + * [Encapsulated PostScript File Format Specification](http://wwwimages.adobe.com/content/dam/Adobe/endevnet/postscript/pdfs/5002.EPSF_Spec.pdf) + * + * Since: 1.16 + **/ + +/** + * CAIRO_MIME_TYPE_EPS_PARAMS: + * + * Embedding parameters Encapsulated PostScript data. + * See [Embedding EPS files][eps]. + * + * Since: 1.16 + **/ + +/** + * CAIRO_MIME_TYPE_JBIG2: + * + * Joint Bi-level Image Experts Group image coding standard (ISO/IEC 11544). + * + * Since: 1.14 + **/ + +/** + * CAIRO_MIME_TYPE_JBIG2_GLOBAL: + * + * Joint Bi-level Image Experts Group image coding standard (ISO/IEC 11544) global segment. + * + * Since: 1.14 + **/ + +/** + * CAIRO_MIME_TYPE_JBIG2_GLOBAL_ID: + * + * An unique identifier shared by a JBIG2 global segment and all JBIG2 images + * that depend on the global segment. + * + * Since: 1.14 + **/ + +/** + * CAIRO_MIME_TYPE_JP2: + * + * The Joint Photographic Experts Group (JPEG) 2000 image coding standard (ISO/IEC 15444-1). + * + * Since: 1.10 + **/ + +/** + * CAIRO_MIME_TYPE_JPEG: + * + * The Joint Photographic Experts Group (JPEG) image coding standard (ISO/IEC 10918-1). + * + * Since: 1.10 + **/ + +/** + * CAIRO_MIME_TYPE_PNG: + * + * The Portable Network Graphics image file format (ISO/IEC 15948). + * + * Since: 1.10 + **/ + +/** + * CAIRO_MIME_TYPE_URI: + * + * URI for an image file (unofficial MIME type). + * + * Since: 1.10 + **/ + +/** + * CAIRO_MIME_TYPE_UNIQUE_ID: + * + * Unique identifier for a surface (cairo specific MIME type). All surfaces with + * the same unique identifier will only be embedded once. + * + * Since: 1.12 + **/ + +/** + * cairo_surface_set_mime_data: + * @surface: a #cairo_surface_t + * @mime_type: the MIME type of the image data + * @data: the image data to attach to the surface + * @length: the length of the image data + * @destroy: a #cairo_destroy_func_t which will be called when the + * surface is destroyed or when new image data is attached using the + * same mime type. + * @closure: the data to be passed to the @destroy notifier + * + * Attach an image in the format @mime_type to @surface. To remove + * the data from a surface, call this function with same mime type + * and %NULL for @data. + * + * The attached image (or filename) data can later be used by backends + * which support it (currently: PDF, PS, SVG and Win32 Printing + * surfaces) to emit this data instead of making a snapshot of the + * @surface. This approach tends to be faster and requires less + * memory and disk space. + * + * The recognized MIME types are the following: %CAIRO_MIME_TYPE_JPEG, + * %CAIRO_MIME_TYPE_PNG, %CAIRO_MIME_TYPE_JP2, %CAIRO_MIME_TYPE_URI, + * %CAIRO_MIME_TYPE_UNIQUE_ID, %CAIRO_MIME_TYPE_JBIG2, + * %CAIRO_MIME_TYPE_JBIG2_GLOBAL, %CAIRO_MIME_TYPE_JBIG2_GLOBAL_ID, + * %CAIRO_MIME_TYPE_CCITT_FAX, %CAIRO_MIME_TYPE_CCITT_FAX_PARAMS. + * + * See corresponding backend surface docs for details about which MIME + * types it can handle. Caution: the associated MIME data will be + * discarded if you draw on the surface afterwards. Use this function + * with care. + * + * Even if a backend supports a MIME type, that does not mean cairo + * will always be able to use the attached MIME data. For example, if + * the backend does not natively support the compositing operation used + * to apply the MIME data to the backend. In that case, the MIME data + * will be ignored. Therefore, to apply an image in all cases, it is best + * to create an image surface which contains the decoded image data and + * then attach the MIME data to that. This ensures the image will always + * be used while still allowing the MIME data to be used whenever + * possible. + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY if a + * slot could not be allocated for the user data. + * + * Since: 1.10 + **/ +cairo_status_t +cairo_surface_set_mime_data (cairo_surface_t *surface, + const char *mime_type, + const unsigned char *data, + unsigned long length, + cairo_destroy_func_t destroy, + void *closure) +{ + cairo_status_t status; + cairo_mime_data_t *mime_data; + + if (CAIRO_REFERENCE_COUNT_IS_INVALID (&surface->ref_count)) + return surface->status; + + if (! CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&surface->ref_count)) + return _cairo_error (CAIRO_STATUS_SURFACE_FINISHED); + + if (unlikely (surface->status)) + return surface->status; + if (unlikely (surface->finished)) + return _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + status = _cairo_intern_string (&mime_type, -1); + if (unlikely (status)) + return _cairo_surface_set_error (surface, status); + + if (data != NULL) { + mime_data = _cairo_calloc (sizeof (cairo_mime_data_t)); + if (unlikely (mime_data == NULL)) + return _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_NO_MEMORY)); + + CAIRO_REFERENCE_COUNT_INIT (&mime_data->ref_count, 1); + + mime_data->data = (unsigned char *) data; + mime_data->length = length; + mime_data->destroy = destroy; + mime_data->closure = closure; + } else + mime_data = NULL; + + status = _cairo_user_data_array_set_data (&surface->mime_data, + (cairo_user_data_key_t *) mime_type, + mime_data, + _cairo_mime_data_destroy); + if (unlikely (status)) { + free (mime_data); + + return _cairo_surface_set_error (surface, status); + } + + surface->is_clear = FALSE; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_surface_supports_mime_type: + * @surface: a #cairo_surface_t + * @mime_type: the mime type + * + * Return whether @surface supports @mime_type. + * + * Return value: %TRUE if @surface supports + * @mime_type, %FALSE otherwise + * + * Since: 1.12 + **/ +cairo_bool_t +cairo_surface_supports_mime_type (cairo_surface_t *surface, + const char *mime_type) +{ + const char **types; + + if (unlikely (surface->status)) + return FALSE; + if (unlikely (surface->finished)) { + _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return FALSE; + } + + if (surface->backend->get_supported_mime_types) { + types = surface->backend->get_supported_mime_types (surface); + if (types) { + while (*types) { + if (strcmp (*types, mime_type) == 0) + return TRUE; + types++; + } + } + } + + return FALSE; +} + +static void +_cairo_mime_data_reference (const void *key, void *elt, void *closure) +{ + cairo_mime_data_t *mime_data = elt; + + _cairo_reference_count_inc (&mime_data->ref_count); +} + +cairo_status_t +_cairo_surface_copy_mime_data (cairo_surface_t *dst, + cairo_surface_t *src) +{ + cairo_status_t status; + + if (dst->status) + return dst->status; + + if (src->status) + return _cairo_surface_set_error (dst, src->status); + + /* first copy the mime-data, discarding any already set on dst */ + status = _cairo_user_data_array_copy (&dst->mime_data, &src->mime_data); + if (unlikely (status)) + return _cairo_surface_set_error (dst, status); + + /* now increment the reference counters for the copies */ + _cairo_user_data_array_foreach (&dst->mime_data, + _cairo_mime_data_reference, + NULL); + + dst->is_clear = FALSE; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * _cairo_surface_set_font_options: + * @surface: a #cairo_surface_t + * @options: a #cairo_font_options_t object that contains the + * options to use for this surface instead of backend's default + * font options. + * + * Sets the default font rendering options for the surface. + * This is useful to correctly propagate default font options when + * falling back to an image surface in a backend implementation. + * This affects the options returned in cairo_surface_get_font_options(). + * + * If @options is %NULL the surface options are reset to those of + * the backend default. + **/ +void +_cairo_surface_set_font_options (cairo_surface_t *surface, + cairo_font_options_t *options) +{ + if (surface->status) + return; + + assert (surface->snapshot_of == NULL); + + if (surface->finished) { + _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return; + } + + if (options) { + surface->has_font_options = TRUE; + _cairo_font_options_init_copy (&surface->font_options, options); + } else { + surface->has_font_options = FALSE; + } +} + +/** + * cairo_surface_get_font_options: + * @surface: a #cairo_surface_t + * @options: a #cairo_font_options_t object into which to store + * the retrieved options. All existing values are overwritten + * + * Retrieves the default font rendering options for the surface. + * This allows display surfaces to report the correct subpixel order + * for rendering on them, print surfaces to disable hinting of + * metrics and so forth. The result can then be used with + * cairo_scaled_font_create(). + * + * Since: 1.0 + **/ +void +cairo_surface_get_font_options (cairo_surface_t *surface, + cairo_font_options_t *options) +{ + if (cairo_font_options_status (options)) + return; + + if (surface->status) { + _cairo_font_options_init_default (options); + return; + } + + if (! surface->has_font_options) { + surface->has_font_options = TRUE; + + _cairo_font_options_init_default (&surface->font_options); + + if (!surface->finished && surface->backend->get_font_options) { + surface->backend->get_font_options (surface, &surface->font_options); + } + } + + _cairo_font_options_init_copy (options, &surface->font_options); +} + +cairo_status_t +_cairo_surface_flush (cairo_surface_t *surface, unsigned flags) +{ + /* update the current snapshots *before* the user updates the surface */ + _cairo_surface_detach_snapshots (surface); + if (surface->snapshot_of != NULL) + _cairo_surface_detach_snapshot (surface); + _cairo_surface_detach_mime_data (surface); + + return __cairo_surface_flush (surface, flags); +} + +/** + * cairo_surface_flush: + * @surface: a #cairo_surface_t + * + * Do any pending drawing for the surface and also restore any temporary + * modifications cairo has made to the surface's state. This function + * must be called before switching from drawing on the surface with + * cairo to drawing on it directly with native APIs, or accessing its + * memory outside of Cairo. If the surface doesn't support direct + * access, then this function does nothing. + * + * Since: 1.0 + **/ +void +cairo_surface_flush (cairo_surface_t *surface) +{ + cairo_status_t status; + + if (surface->status) + return; + + if (surface->finished) + return; + + status = _cairo_surface_flush (surface, 0); + if (unlikely (status)) + _cairo_surface_set_error (surface, status); +} + +/** + * cairo_surface_mark_dirty: + * @surface: a #cairo_surface_t + * + * Tells cairo that drawing has been done to surface using means other + * than cairo, and that cairo should reread any cached areas. Note + * that you must call cairo_surface_flush() before doing such drawing. + * + * Since: 1.0 + **/ +void +cairo_surface_mark_dirty (cairo_surface_t *surface) +{ + cairo_rectangle_int_t extents; + + if (unlikely (surface->status)) + return; + if (unlikely (surface->finished)) { + _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return; + } + + _cairo_surface_get_extents (surface, &extents); + cairo_surface_mark_dirty_rectangle (surface, + extents.x, extents.y, + extents.width, extents.height); +} + +/** + * cairo_surface_mark_dirty_rectangle: + * @surface: a #cairo_surface_t + * @x: X coordinate of dirty rectangle + * @y: Y coordinate of dirty rectangle + * @width: width of dirty rectangle + * @height: height of dirty rectangle + * + * Like cairo_surface_mark_dirty(), but drawing has been done only to + * the specified rectangle, so that cairo can retain cached contents + * for other parts of the surface. + * + * Any cached clip set on the surface will be reset by this function, + * to make sure that future cairo calls have the clip set that they + * expect. + * + * Since: 1.0 + **/ +void +cairo_surface_mark_dirty_rectangle (cairo_surface_t *surface, + int x, + int y, + int width, + int height) +{ + cairo_status_t status; + + if (unlikely (surface->status)) + return; + + assert (surface->snapshot_of == NULL); + + if (unlikely (surface->finished)) { + _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return; + } + + /* The application *should* have called cairo_surface_flush() before + * modifying the surface independently of cairo (and thus having to + * call mark_dirty()). */ + assert (! _cairo_surface_has_snapshots (surface)); + assert (! _cairo_surface_has_mime_data (surface)); + + surface->is_clear = FALSE; + surface->serial++; + + if (surface->damage) { + cairo_box_t box; + + box.p1.x = x; + box.p1.y = y; + box.p2.x = x + width; + box.p2.y = y + height; + + surface->damage = _cairo_damage_add_box (surface->damage, &box); + } + + if (surface->backend->mark_dirty_rectangle != NULL) { + /* XXX: FRAGILE: We're ignoring the scaling component of + * device_transform here. I don't know what the right thing to + * do would actually be if there were some scaling here, but + * we avoid this since device_transfom scaling is not exported + * publicly and mark_dirty is not used internally. */ + status = surface->backend->mark_dirty_rectangle (surface, + x + surface->device_transform.x0, + y + surface->device_transform.y0, + width, height); + + if (unlikely (status)) + _cairo_surface_set_error (surface, status); + } +} + +/** + * cairo_surface_set_device_scale: + * @surface: a #cairo_surface_t + * @x_scale: a scale factor in the X direction + * @y_scale: a scale factor in the Y direction + * + * Sets a scale that is multiplied to the device coordinates determined + * by the CTM when drawing to @surface. One common use for this is to + * render to very high resolution display devices at a scale factor, so + * that code that assumes 1 pixel will be a certain size will still work. + * Setting a transformation via cairo_scale() isn't + * sufficient to do this, since functions like + * cairo_device_to_user() will expose the hidden scale. + * + * Note that the scale affects drawing to the surface as well as + * using the surface in a source pattern. + * + * Since: 1.14 + **/ +void +cairo_surface_set_device_scale (cairo_surface_t *surface, + double x_scale, + double y_scale) +{ + cairo_status_t status; + + if (unlikely (surface->status)) + return; + + assert (surface->snapshot_of == NULL); + + if (unlikely (surface->finished)) { + _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return; + } + + status = _cairo_surface_begin_modification (surface); + if (unlikely (status)) { + _cairo_surface_set_error (surface, status); + return; + } + + surface->device_transform.xx = x_scale; + surface->device_transform.yy = y_scale; + surface->device_transform.xy = 0.0; + surface->device_transform.yx = 0.0; + + surface->device_transform_inverse = surface->device_transform; + status = cairo_matrix_invert (&surface->device_transform_inverse); + /* should always be invertible unless given pathological input */ + assert (status == CAIRO_STATUS_SUCCESS); + + _cairo_observers_notify (&surface->device_transform_observers, surface); +} + +/** + * cairo_surface_get_device_scale: + * @surface: a #cairo_surface_t + * @x_scale: the scale in the X direction, in device units + * @y_scale: the scale in the Y direction, in device units + * + * This function returns the previous device scale set by + * cairo_surface_set_device_scale(). + * + * Since: 1.14 + **/ +void +cairo_surface_get_device_scale (cairo_surface_t *surface, + double *x_scale, + double *y_scale) +{ + if (x_scale) + *x_scale = surface->device_transform.xx; + if (y_scale) + *y_scale = surface->device_transform.yy; +} + +/** + * cairo_surface_set_device_offset: + * @surface: a #cairo_surface_t + * @x_offset: the offset in the X direction, in device units + * @y_offset: the offset in the Y direction, in device units + * + * Sets an offset that is added to the device coordinates determined + * by the CTM when drawing to @surface. One use case for this function + * is when we want to create a #cairo_surface_t that redirects drawing + * for a portion of an onscreen surface to an offscreen surface in a + * way that is completely invisible to the user of the cairo + * API. Setting a transformation via cairo_translate() isn't + * sufficient to do this, since functions like + * cairo_device_to_user() will expose the hidden offset. + * + * Note that the offset affects drawing to the surface as well as + * using the surface in a source pattern. + * + * Since: 1.0 + **/ +void +cairo_surface_set_device_offset (cairo_surface_t *surface, + double x_offset, + double y_offset) +{ + cairo_status_t status; + + if (unlikely (surface->status)) + return; + + assert (surface->snapshot_of == NULL); + + if (unlikely (surface->finished)) { + _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return; + } + + status = _cairo_surface_begin_modification (surface); + if (unlikely (status)) { + _cairo_surface_set_error (surface, status); + return; + } + + surface->device_transform.x0 = x_offset; + surface->device_transform.y0 = y_offset; + + surface->device_transform_inverse = surface->device_transform; + status = cairo_matrix_invert (&surface->device_transform_inverse); + /* should always be invertible unless given pathological input */ + assert (status == CAIRO_STATUS_SUCCESS); + + _cairo_observers_notify (&surface->device_transform_observers, surface); +} + +/** + * cairo_surface_get_device_offset: + * @surface: a #cairo_surface_t + * @x_offset: the offset in the X direction, in device units + * @y_offset: the offset in the Y direction, in device units + * + * This function returns the previous device offset set by + * cairo_surface_set_device_offset(). + * + * Since: 1.2 + **/ +void +cairo_surface_get_device_offset (cairo_surface_t *surface, + double *x_offset, + double *y_offset) +{ + if (x_offset) + *x_offset = surface->device_transform.x0; + if (y_offset) + *y_offset = surface->device_transform.y0; +} + +/** + * cairo_surface_set_fallback_resolution: + * @surface: a #cairo_surface_t + * @x_pixels_per_inch: horizontal setting for pixels per inch + * @y_pixels_per_inch: vertical setting for pixels per inch + * + * Set the horizontal and vertical resolution for image fallbacks. + * + * When certain operations aren't supported natively by a backend, + * cairo will fallback by rendering operations to an image and then + * overlaying that image onto the output. For backends that are + * natively vector-oriented, this function can be used to set the + * resolution used for these image fallbacks, (larger values will + * result in more detailed images, but also larger file sizes). + * + * Some examples of natively vector-oriented backends are the ps, pdf, + * and svg backends. + * + * For backends that are natively raster-oriented, image fallbacks are + * still possible, but they are always performed at the native + * device resolution. So this function has no effect on those + * backends. + * + * Note: The fallback resolution only takes effect at the time of + * completing a page (with cairo_show_page() or cairo_copy_page()) so + * there is currently no way to have more than one fallback resolution + * in effect on a single page. + * + * The default fallback resolution is 300 pixels per inch in both + * dimensions. + * + * Since: 1.2 + **/ +void +cairo_surface_set_fallback_resolution (cairo_surface_t *surface, + double x_pixels_per_inch, + double y_pixels_per_inch) +{ + cairo_status_t status; + + if (unlikely (surface->status)) + return; + + assert (surface->snapshot_of == NULL); + + if (unlikely (surface->finished)) { + _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return; + } + + if (x_pixels_per_inch <= 0 || y_pixels_per_inch <= 0) { + /* XXX Could delay raising the error until we fallback, but throwing + * the error here means that we can catch the real culprit. + */ + _cairo_surface_set_error (surface, CAIRO_STATUS_INVALID_MATRIX); + return; + } + + status = _cairo_surface_begin_modification (surface); + if (unlikely (status)) { + _cairo_surface_set_error (surface, status); + return; + } + + surface->x_fallback_resolution = x_pixels_per_inch; + surface->y_fallback_resolution = y_pixels_per_inch; +} + +/** + * cairo_surface_get_fallback_resolution: + * @surface: a #cairo_surface_t + * @x_pixels_per_inch: horizontal pixels per inch + * @y_pixels_per_inch: vertical pixels per inch + * + * This function returns the previous fallback resolution set by + * cairo_surface_set_fallback_resolution(), or default fallback + * resolution if never set. + * + * Since: 1.8 + **/ +void +cairo_surface_get_fallback_resolution (cairo_surface_t *surface, + double *x_pixels_per_inch, + double *y_pixels_per_inch) +{ + if (x_pixels_per_inch) + *x_pixels_per_inch = surface->x_fallback_resolution; + if (y_pixels_per_inch) + *y_pixels_per_inch = surface->y_fallback_resolution; +} + +cairo_bool_t +_cairo_surface_has_device_transform (cairo_surface_t *surface) +{ + return ! _cairo_matrix_is_identity (&surface->device_transform); +} + +/** + * _cairo_surface_acquire_source_image: + * @surface: a #cairo_surface_t + * @image_out: location to store a pointer to an image surface that + * has identical contents to @surface. This surface could be @surface + * itself, a surface held internal to @surface, or it could be a new + * surface with a copy of the relevant portion of @surface. + * @image_extra: location to store image specific backend data + * + * Gets an image surface to use when drawing as a fallback when drawing with + * @surface as a source. _cairo_surface_release_source_image() must be called + * when finished. + * + * Return value: %CAIRO_STATUS_SUCCESS if an image was stored in @image_out. + * %CAIRO_INT_STATUS_UNSUPPORTED if an image cannot be retrieved for the specified + * surface. Or %CAIRO_STATUS_NO_MEMORY. + **/ +cairo_status_t +_cairo_surface_acquire_source_image (cairo_surface_t *surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + cairo_status_t status; + + if (unlikely (surface->status)) + return surface->status; + + assert (!surface->finished); + + if (surface->backend->acquire_source_image == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = surface->backend->acquire_source_image (surface, + image_out, image_extra); + if (unlikely (status)) + return _cairo_surface_set_error (surface, status); + + _cairo_debug_check_image_surface_is_defined (&(*image_out)->base); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_surface_default_acquire_source_image (void *_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + cairo_surface_t *surface = _surface; + cairo_rectangle_int_t extents; + + if (unlikely (! surface->backend->get_extents (surface, &extents))) + return _cairo_error (CAIRO_STATUS_INVALID_SIZE); + + *image_out = _cairo_surface_map_to_image (surface, &extents); + *image_extra = NULL; + return (*image_out)->base.status; +} + +/** + * _cairo_surface_release_source_image: + * @surface: a #cairo_surface_t + * @image_extra: same as return from the matching _cairo_surface_acquire_source_image() + * + * Releases any resources obtained with _cairo_surface_acquire_source_image() + **/ +void +_cairo_surface_release_source_image (cairo_surface_t *surface, + cairo_image_surface_t *image, + void *image_extra) +{ + assert (!surface->finished); + + if (surface->backend->release_source_image) + surface->backend->release_source_image (surface, image, image_extra); +} + +void +_cairo_surface_default_release_source_image (void *surface, + cairo_image_surface_t *image, + void *image_extra) +{ + cairo_status_t ignored; + + ignored = _cairo_surface_unmap_image (surface, image); + (void)ignored; +} + + +cairo_surface_t * +_cairo_surface_get_source (cairo_surface_t *surface, + cairo_rectangle_int_t *extents) +{ + assert (surface->backend->source); + return surface->backend->source (surface, extents); +} + +cairo_surface_t * +_cairo_surface_default_source (void *surface, + cairo_rectangle_int_t *extents) +{ + if (extents) + _cairo_surface_get_extents(surface, extents); + return surface; +} + +static cairo_status_t +_pattern_has_error (const cairo_pattern_t *pattern) +{ + const cairo_surface_pattern_t *spattern; + + if (unlikely (pattern->status)) + return pattern->status; + + if (pattern->type != CAIRO_PATTERN_TYPE_SURFACE) + return CAIRO_STATUS_SUCCESS; + + spattern = (const cairo_surface_pattern_t *) pattern; + if (unlikely (spattern->surface->status)) + return spattern->surface->status; + + if (unlikely (spattern->surface->finished)) + return _cairo_error (CAIRO_STATUS_SURFACE_FINISHED); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +nothing_to_do (cairo_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source) +{ + if (_cairo_pattern_is_clear (source)) { + if (op == CAIRO_OPERATOR_OVER || op == CAIRO_OPERATOR_ADD) + return TRUE; + + if (op == CAIRO_OPERATOR_SOURCE) + op = CAIRO_OPERATOR_CLEAR; + } + + if (op == CAIRO_OPERATOR_CLEAR && surface->is_clear) + return TRUE; + + if (op == CAIRO_OPERATOR_ATOP && (surface->content & CAIRO_CONTENT_COLOR) ==0) + return TRUE; + + return FALSE; +} + +cairo_status_t +_cairo_surface_paint (cairo_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_int_status_t status; + cairo_bool_t is_clear; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + if (unlikely (surface->status)) + return surface->status; + if (unlikely (surface->finished)) + return _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + status = _pattern_has_error (source); + if (unlikely (status)) + return status; + + if (nothing_to_do (surface, op, source)) + return CAIRO_STATUS_SUCCESS; + + status = _cairo_surface_begin_modification (surface); + if (unlikely (status)) + return status; + + if (source->is_foreground_marker && surface->foreground_source) { + source = surface->foreground_source; + surface->foreground_used = TRUE; + } + + status = surface->backend->paint (surface, op, source, clip); + is_clear = op == CAIRO_OPERATOR_CLEAR && clip == NULL; + if (status != CAIRO_INT_STATUS_NOTHING_TO_DO || is_clear) { + surface->is_clear = is_clear; + surface->serial++; + } + + return _cairo_surface_set_error (surface, status); +} + +cairo_status_t +_cairo_surface_mask (cairo_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + if (unlikely (surface->status)) + return surface->status; + if (unlikely (surface->finished)) + return _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + /* If the mask is blank, this is just an expensive no-op */ + if (_cairo_pattern_is_clear (mask) && + _cairo_operator_bounded_by_mask (op)) + { + return CAIRO_STATUS_SUCCESS; + } + + status = _pattern_has_error (source); + if (unlikely (status)) + return status; + + status = _pattern_has_error (mask); + if (unlikely (status)) + return status; + + if (nothing_to_do (surface, op, source)) + return CAIRO_STATUS_SUCCESS; + + status = _cairo_surface_begin_modification (surface); + if (unlikely (status)) + return status; + + if (source->is_foreground_marker && surface->foreground_source) { + source = surface->foreground_source; + surface->foreground_used = TRUE; + } + + status = surface->backend->mask (surface, op, source, mask, clip); + if (status != CAIRO_INT_STATUS_NOTHING_TO_DO) { + surface->is_clear = FALSE; + surface->serial++; + } + + return _cairo_surface_set_error (surface, status); +} + +cairo_status_t +_cairo_surface_fill_stroke (cairo_surface_t *surface, + cairo_operator_t fill_op, + const cairo_pattern_t *fill_source, + cairo_fill_rule_t fill_rule, + double fill_tolerance, + cairo_antialias_t fill_antialias, + cairo_path_fixed_t *path, + cairo_operator_t stroke_op, + const cairo_pattern_t *stroke_source, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *stroke_ctm, + const cairo_matrix_t *stroke_ctm_inverse, + double stroke_tolerance, + cairo_antialias_t stroke_antialias, + const cairo_clip_t *clip) +{ + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + if (unlikely (surface->status)) + return surface->status; + if (unlikely (surface->finished)) + return _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + if (surface->is_clear && + fill_op == CAIRO_OPERATOR_CLEAR && + stroke_op == CAIRO_OPERATOR_CLEAR) + { + return CAIRO_STATUS_SUCCESS; + } + + status = _pattern_has_error (fill_source); + if (unlikely (status)) + return status; + + status = _pattern_has_error (stroke_source); + if (unlikely (status)) + return status; + + status = _cairo_surface_begin_modification (surface); + if (unlikely (status)) + return status; + + if (fill_source->is_foreground_marker && surface->foreground_source) { + fill_source = surface->foreground_source; + surface->foreground_used = TRUE; + } + + if (stroke_source->is_foreground_marker && surface->foreground_source) { + stroke_source = surface->foreground_source; + surface->foreground_used = TRUE; + } + + if (surface->backend->fill_stroke) { + cairo_matrix_t dev_ctm = *stroke_ctm; + cairo_matrix_t dev_ctm_inverse = *stroke_ctm_inverse; + + status = surface->backend->fill_stroke (surface, + fill_op, fill_source, fill_rule, + fill_tolerance, fill_antialias, + path, + stroke_op, stroke_source, + stroke_style, + &dev_ctm, &dev_ctm_inverse, + stroke_tolerance, stroke_antialias, + clip); + + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + goto FINISH; + } + + status = _cairo_surface_fill (surface, fill_op, fill_source, path, + fill_rule, fill_tolerance, fill_antialias, + clip); + if (unlikely (status)) + goto FINISH; + + status = _cairo_surface_stroke (surface, stroke_op, stroke_source, path, + stroke_style, stroke_ctm, stroke_ctm_inverse, + stroke_tolerance, stroke_antialias, + clip); + if (unlikely (status)) + goto FINISH; + + FINISH: + if (status != CAIRO_INT_STATUS_NOTHING_TO_DO) { + surface->is_clear = FALSE; + surface->serial++; + } + + return _cairo_surface_set_error (surface, status); +} + +cairo_status_t +_cairo_surface_stroke (cairo_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + if (unlikely (surface->status)) + return surface->status; + if (unlikely (surface->finished)) + return _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + status = _pattern_has_error (source); + if (unlikely (status)) + return status; + + if (nothing_to_do (surface, op, source)) + return CAIRO_STATUS_SUCCESS; + + status = _cairo_surface_begin_modification (surface); + if (unlikely (status)) + return status; + + if (source->is_foreground_marker && surface->foreground_source) { + source = surface->foreground_source; + surface->foreground_used = TRUE; + } + + status = surface->backend->stroke (surface, op, source, + path, stroke_style, + ctm, ctm_inverse, + tolerance, antialias, + clip); + if (status != CAIRO_INT_STATUS_NOTHING_TO_DO) { + surface->is_clear = FALSE; + surface->serial++; + } + + return _cairo_surface_set_error (surface, status); +} + +cairo_status_t +_cairo_surface_fill (cairo_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + if (unlikely (surface->status)) + return surface->status; + if (unlikely (surface->finished)) + return _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + status = _pattern_has_error (source); + if (unlikely (status)) + return status; + + if (nothing_to_do (surface, op, source)) + return CAIRO_STATUS_SUCCESS; + + status = _cairo_surface_begin_modification (surface); + if (unlikely (status)) + return status; + + if (source->is_foreground_marker && surface->foreground_source) { + source = surface->foreground_source; + surface->foreground_used = TRUE; + } + + status = surface->backend->fill (surface, op, source, + path, fill_rule, + tolerance, antialias, + clip); + if (status != CAIRO_INT_STATUS_NOTHING_TO_DO) { + surface->is_clear = FALSE; + surface->serial++; + } + + return _cairo_surface_set_error (surface, status); +} + +/** + * cairo_surface_copy_page: + * @surface: a #cairo_surface_t + * + * Emits the current page for backends that support multiple pages, + * but doesn't clear it, so that the contents of the current page will + * be retained for the next page. Use cairo_surface_show_page() if you + * want to get an empty page after the emission. + * + * There is a convenience function for this that takes a #cairo_t, + * namely cairo_copy_page(). + * + * Since: 1.6 + **/ +void +cairo_surface_copy_page (cairo_surface_t *surface) +{ + if (unlikely (surface->status)) + return; + + assert (surface->snapshot_of == NULL); + + if (unlikely (surface->finished)) { + _cairo_surface_set_error (surface, CAIRO_STATUS_SURFACE_FINISHED); + return; + } + + /* It's fine if some backends don't implement copy_page */ + if (surface->backend->copy_page == NULL) + return; + + _cairo_surface_set_error (surface, surface->backend->copy_page (surface)); +} + +/** + * cairo_surface_show_page: + * @surface: a #cairo_Surface_t + * + * Emits and clears the current page for backends that support multiple + * pages. Use cairo_surface_copy_page() if you don't want to clear the page. + * + * There is a convenience function for this that takes a #cairo_t, + * namely cairo_show_page(). + * + * Since: 1.6 + **/ +void +cairo_surface_show_page (cairo_surface_t *surface) +{ + cairo_status_t status; + + if (unlikely (surface->status)) + return; + + if (unlikely (surface->finished)) { + _cairo_surface_set_error (surface, CAIRO_STATUS_SURFACE_FINISHED); + return; + } + + status = _cairo_surface_begin_modification (surface); + if (unlikely (status)) { + _cairo_surface_set_error (surface, status); + return; + } + + /* It's fine if some backends don't implement show_page */ + if (surface->backend->show_page == NULL) + return; + + _cairo_surface_set_error (surface, surface->backend->show_page (surface)); +} + +/** + * _cairo_surface_get_extents: + * @surface: the #cairo_surface_t to fetch extents for + * + * This function returns a bounding box for the surface. The surface + * bounds are defined as a region beyond which no rendering will + * possibly be recorded, in other words, it is the maximum extent of + * potentially usable coordinates. + * + * For vector surfaces, (PDF, PS, SVG and recording-surfaces), the surface + * might be conceived as unbounded, but we force the user to provide a + * maximum size at the time of surface_create. So get_extents uses + * that size. + * + * Note: The coordinates returned are in "backend" space rather than + * "surface" space. That is, they are relative to the true (0,0) + * origin rather than the device_transform origin. This might seem a + * bit inconsistent with other #cairo_surface_t interfaces, but all + * current callers are within the surface layer where backend space is + * desired. + * + * This behavior would have to be changed is we ever exported a public + * variant of this function. + **/ +cairo_bool_t +_cairo_surface_get_extents (cairo_surface_t *surface, + cairo_rectangle_int_t *extents) +{ + cairo_bool_t bounded; + + if (unlikely (surface->status)) + goto zero_extents; + if (unlikely (surface->finished)) { + _cairo_surface_set_error(surface, CAIRO_STATUS_SURFACE_FINISHED); + goto zero_extents; + } + + bounded = FALSE; + if (surface->backend->get_extents != NULL) + bounded = surface->backend->get_extents (surface, extents); + + if (! bounded) + _cairo_unbounded_rectangle_init (extents); + + return bounded; + +zero_extents: + extents->x = extents->y = 0; + extents->width = extents->height = 0; + return TRUE; +} + +/** + * cairo_surface_has_show_text_glyphs: + * @surface: a #cairo_surface_t + * + * Returns whether the surface supports + * sophisticated cairo_show_text_glyphs() operations. That is, + * whether it actually uses the provided text and cluster data + * to a cairo_show_text_glyphs() call. + * + * Note: Even if this function returns %FALSE, a + * cairo_show_text_glyphs() operation targeted at @surface will + * still succeed. It just will + * act like a cairo_show_glyphs() operation. Users can use this + * function to avoid computing UTF-8 text and cluster mapping if the + * target surface does not use it. + * + * Return value: %TRUE if @surface supports + * cairo_show_text_glyphs(), %FALSE otherwise + * + * Since: 1.8 + **/ +cairo_bool_t +cairo_surface_has_show_text_glyphs (cairo_surface_t *surface) +{ + if (unlikely (surface->status)) + return FALSE; + + if (unlikely (surface->finished)) { + _cairo_surface_set_error (surface, CAIRO_STATUS_SURFACE_FINISHED); + return FALSE; + } + + if (surface->backend->has_show_text_glyphs) + return surface->backend->has_show_text_glyphs (surface); + else + return surface->backend->show_text_glyphs != NULL; +} + +#define GLYPH_CACHE_SIZE 64 + +static inline cairo_int_status_t +ensure_scaled_glyph (cairo_scaled_font_t *scaled_font, + cairo_color_t *foreground_color, + cairo_scaled_glyph_t **glyph_cache, + cairo_glyph_t *glyph, + cairo_scaled_glyph_t **scaled_glyph) +{ + int cache_index; + cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS; + + cache_index = glyph->index % GLYPH_CACHE_SIZE; + *scaled_glyph = glyph_cache[cache_index]; + if (*scaled_glyph == NULL || _cairo_scaled_glyph_index (*scaled_glyph) != glyph->index) { + status = _cairo_scaled_glyph_lookup (scaled_font, + glyph->index, + CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE, + foreground_color, + scaled_glyph); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + /* If the color surface not available, ensure scaled_glyph is not NULL. */ + status = _cairo_scaled_glyph_lookup (scaled_font, + glyph->index, + CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL, /* foreground color */ + scaled_glyph); + } + if (unlikely (status)) + status = _cairo_scaled_font_set_error (scaled_font, status); + + glyph_cache[cache_index] = *scaled_glyph; + } + + return status; +} + +static inline cairo_int_status_t +composite_one_color_glyph (cairo_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip, + cairo_glyph_t *glyph, + cairo_scaled_glyph_t *scaled_glyph, + double x_scale, + double y_scale) +{ + cairo_int_status_t status; + cairo_image_surface_t *glyph_surface; + cairo_pattern_t *pattern; + cairo_matrix_t matrix; + int has_color; + + status = CAIRO_INT_STATUS_SUCCESS; + + has_color = scaled_glyph->has_info & CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE; + if (has_color) + glyph_surface = scaled_glyph->color_surface; + else + glyph_surface = scaled_glyph->surface; + + if (glyph_surface->width && glyph_surface->height) { + int x, y; + /* round glyph locations to the nearest pixels */ + /* XXX: FRAGILE: We're ignoring device_transform scaling here. A bug? */ + x = _cairo_lround (glyph->x * x_scale - glyph_surface->base.device_transform.x0); + y = _cairo_lround (glyph->y * y_scale - glyph_surface->base.device_transform.y0); + + pattern = cairo_pattern_create_for_surface ((cairo_surface_t *)glyph_surface); + cairo_matrix_init_translate (&matrix, - x, - y); + cairo_matrix_scale (&matrix, x_scale, y_scale); + cairo_pattern_set_matrix (pattern, &matrix); + if (op == CAIRO_OPERATOR_SOURCE || op == CAIRO_OPERATOR_CLEAR || !has_color) + status = _cairo_surface_mask (surface, op, pattern, pattern, clip); + else + status = _cairo_surface_paint (surface, op, pattern, clip); + cairo_pattern_destroy (pattern); + } + + return status; +} + +static cairo_int_status_t +composite_color_glyphs (cairo_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + char *utf8, + int *utf8_len, + cairo_glyph_t *glyphs, + int *num_glyphs, + cairo_text_cluster_t *clusters, + int *num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_int_status_t status; + int i, j; + cairo_scaled_glyph_t *scaled_glyph; + int remaining_clusters = 0; + int remaining_glyphs = 0; + int remaining_bytes = 0; + int glyph_pos = 0; + int byte_pos = 0; + int gp; + cairo_scaled_glyph_t *glyph_cache[GLYPH_CACHE_SIZE]; + cairo_color_t *foreground_color = NULL; + double x_scale = 1.0; + double y_scale = 1.0; + + if (surface->is_vector) { + cairo_font_face_t *font_face; + cairo_matrix_t font_matrix; + cairo_matrix_t ctm; + cairo_font_options_t font_options; + + x_scale = surface->x_fallback_resolution / surface->x_resolution; + y_scale = surface->y_fallback_resolution / surface->y_resolution; + font_face = cairo_scaled_font_get_font_face (scaled_font); + cairo_scaled_font_get_font_matrix (scaled_font, &font_matrix); + cairo_scaled_font_get_ctm (scaled_font, &ctm); + _cairo_font_options_init_default (&font_options); + cairo_scaled_font_get_font_options (scaled_font, &font_options); + cairo_matrix_scale (&ctm, x_scale, y_scale); + scaled_font = cairo_scaled_font_create (font_face, + &font_matrix, + &ctm, + &font_options); + } + + if (source->type == CAIRO_PATTERN_TYPE_SOLID) + foreground_color = &((cairo_solid_pattern_t *) source)->color; + + memset (glyph_cache, 0, sizeof (glyph_cache)); + + status = CAIRO_INT_STATUS_SUCCESS; + + _cairo_scaled_font_freeze_cache (scaled_font); + + if (clusters) { + + if (cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD) + glyph_pos = *num_glyphs - 1; + + for (i = 0; i < *num_clusters; i++) { + cairo_bool_t skip_cluster = TRUE; + + for (j = 0; j < clusters[i].num_glyphs; j++) { + if (cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD) + gp = glyph_pos - j; + else + gp = glyph_pos + j; + + status = ensure_scaled_glyph (scaled_font, foreground_color, glyph_cache, + &glyphs[gp], &scaled_glyph); + if (unlikely (status)) + goto UNLOCK; + + if ((scaled_glyph->has_info & CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) != 0) { + cairo_bool_t supports_color_glyph = FALSE; + + if (surface->backend->supports_color_glyph) { + _cairo_scaled_font_thaw_cache (scaled_font); + supports_color_glyph = _cairo_surface_supports_color_glyph (surface, scaled_font, glyphs[gp].index); + + memset (glyph_cache, 0, sizeof (glyph_cache)); + _cairo_scaled_font_freeze_cache (scaled_font); + } + + if (!supports_color_glyph) { + skip_cluster = FALSE; + break; + } + } + } + + if (skip_cluster) { + memmove (utf8 + remaining_bytes, utf8 + byte_pos, clusters[i].num_bytes); + remaining_bytes += clusters[i].num_bytes; + byte_pos += clusters[i].num_bytes; + for (j = 0; j < clusters[i].num_glyphs; j++, remaining_glyphs++) { + if (cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD) + glyphs[*num_glyphs - 1 - remaining_glyphs] = glyphs[glyph_pos--]; + else + glyphs[remaining_glyphs] = glyphs[glyph_pos++]; + } + clusters[remaining_clusters++] = clusters[i]; + continue; + } + + for (j = 0; j < clusters[i].num_glyphs; j++) { + if (cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD) + gp = glyph_pos - j; + else + gp = glyph_pos + j; + + status = ensure_scaled_glyph (scaled_font, foreground_color, glyph_cache, + &glyphs[gp], &scaled_glyph); + if (unlikely (status)) + goto UNLOCK; + + status = composite_one_color_glyph (surface, op, source, clip, + &glyphs[gp], scaled_glyph, + x_scale, y_scale); + if (unlikely (status && status != CAIRO_INT_STATUS_NOTHING_TO_DO)) + goto UNLOCK; + } + + if (cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD) + glyph_pos -= clusters[i].num_glyphs; + else + glyph_pos += clusters[i].num_glyphs; + + byte_pos += clusters[i].num_bytes; + } + + if (cluster_flags & CAIRO_TEXT_CLUSTER_FLAG_BACKWARD) { + memmove (utf8, utf8 + *utf8_len - remaining_bytes, remaining_bytes); + memmove (glyphs, glyphs + (*num_glyphs - remaining_glyphs), sizeof (cairo_glyph_t) * remaining_glyphs); + } + + *utf8_len = remaining_bytes; + *num_glyphs = remaining_glyphs; + *num_clusters = remaining_clusters; + + } else { + + for (glyph_pos = 0; glyph_pos < *num_glyphs; glyph_pos++) { + status = ensure_scaled_glyph (scaled_font, foreground_color, glyph_cache, + &glyphs[glyph_pos], &scaled_glyph); + if (unlikely (status)) + goto UNLOCK; + + if ((scaled_glyph->has_info & CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) == 0) { + glyphs[remaining_glyphs++] = glyphs[glyph_pos]; + continue; + } + + status = composite_one_color_glyph (surface, op, source, clip, + &glyphs[glyph_pos], scaled_glyph, + x_scale, y_scale); + if (unlikely (status && status != CAIRO_INT_STATUS_NOTHING_TO_DO)) + goto UNLOCK; + } + + *num_glyphs = remaining_glyphs; + } + +UNLOCK: + _cairo_scaled_font_thaw_cache (scaled_font); + + if (surface->is_vector) + cairo_scaled_font_destroy (scaled_font); + + return status; +} + +/* Note: the backends may modify the contents of the glyph array as long as + * they do not return %CAIRO_INT_STATUS_UNSUPPORTED. This makes it possible to + * avoid copying the array again and again, and edit it in-place. + * Backends are in fact free to use the array as a generic buffer as they + * see fit. + * + * For show_glyphs backend method, and NOT for show_text_glyphs method, + * when they do return UNSUPPORTED, they may adjust remaining_glyphs to notify + * that they have successfully rendered some of the glyphs (from the beginning + * of the array), but not all. If they don't touch remaining_glyphs, it + * defaults to all glyphs. + * + * See commits 5a9642c5746fd677aed35ce620ce90b1029b1a0c and + * 1781e6018c17909311295a9cc74b70500c6b4d0a for the rationale. + */ +cairo_status_t +_cairo_surface_show_text_glyphs (cairo_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const char *utf8, + int utf8_len, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_int_status_t status; + char *utf8_copy = NULL; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + if (unlikely (surface->status)) + return surface->status; + if (unlikely (surface->finished)) + return _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + if (num_glyphs == 0 && utf8_len == 0) + return CAIRO_STATUS_SUCCESS; + + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_STATUS_SUCCESS; + + status = _pattern_has_error (source); + if (unlikely (status)) + return status; + + status = cairo_scaled_font_status (scaled_font); + if (unlikely (status)) + return status; + + if (!(_cairo_scaled_font_has_color_glyphs (scaled_font) && + scaled_font->options.color_mode != CAIRO_COLOR_MODE_NO_COLOR)) + { + if (nothing_to_do (surface, op, source)) + return CAIRO_STATUS_SUCCESS; + } + + status = _cairo_surface_begin_modification (surface); + if (unlikely (status)) + return status; + + if (source->is_foreground_marker && surface->foreground_source) + source = surface->foreground_source; + + if (_cairo_scaled_font_has_color_glyphs (scaled_font) && + scaled_font->options.color_mode != CAIRO_COLOR_MODE_NO_COLOR) + { + utf8_copy = malloc (sizeof (char) * utf8_len); + memcpy (utf8_copy, utf8, sizeof (char) * utf8_len); + utf8 = utf8_copy; + + status = composite_color_glyphs (surface, op, + source, + (char *)utf8, &utf8_len, + glyphs, &num_glyphs, + (cairo_text_cluster_t *)clusters, &num_clusters, cluster_flags, + scaled_font, + clip); + + if (unlikely (status && status != CAIRO_INT_STATUS_NOTHING_TO_DO)) + goto DONE; + + if (num_glyphs == 0) + goto DONE; + } else { + utf8_copy = NULL; + } + + /* The logic here is duplicated in _cairo_analysis_surface show_glyphs and + * show_text_glyphs. Keep in synch. */ + if (clusters) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + /* A real show_text_glyphs call. Try show_text_glyphs backend + * method first */ + if (surface->backend->show_text_glyphs != NULL) { + status = surface->backend->show_text_glyphs (surface, op, + source, + utf8, utf8_len, + glyphs, num_glyphs, + clusters, num_clusters, cluster_flags, + scaled_font, + clip); + } + if (status == CAIRO_INT_STATUS_UNSUPPORTED && + surface->backend->show_glyphs) + { + status = surface->backend->show_glyphs (surface, op, + source, + glyphs, num_glyphs, + scaled_font, + clip); + } + } else { + /* A mere show_glyphs call. Try show_glyphs backend method first */ + if (surface->backend->show_glyphs != NULL) { + status = surface->backend->show_glyphs (surface, op, + source, + glyphs, num_glyphs, + scaled_font, + clip); + } else if (surface->backend->show_text_glyphs != NULL) { + /* Intentionally only try show_text_glyphs method for show_glyphs + * calls if backend does not have show_glyphs. If backend has + * both methods implemented, we don't fallback from show_glyphs to + * show_text_glyphs, and hence the backend can assume in its + * show_text_glyphs call that clusters is not NULL (which also + * implies that UTF-8 is not NULL, unless the text is + * zero-length). + */ + status = surface->backend->show_text_glyphs (surface, op, + source, + utf8, utf8_len, + glyphs, num_glyphs, + clusters, num_clusters, cluster_flags, + scaled_font, + clip); + } + } + +DONE: + if (status != CAIRO_INT_STATUS_NOTHING_TO_DO) { + surface->is_clear = FALSE; + surface->serial++; + } + + if (utf8_copy) + free (utf8_copy); + + return _cairo_surface_set_error (surface, status); +} + +cairo_status_t +_cairo_surface_tag (cairo_surface_t *surface, + cairo_bool_t begin, + const char *tag_name, + const char *attributes) +{ + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + if (unlikely (surface->status)) + return surface->status; + if (unlikely (surface->finished)) + return _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + if (surface->backend->tag == NULL) + return CAIRO_STATUS_SUCCESS; + + status = surface->backend->tag (surface, begin, tag_name, attributes); + surface->is_clear = FALSE; + + return _cairo_surface_set_error (surface, status); +} + +cairo_bool_t +_cairo_surface_supports_color_glyph (cairo_surface_t *surface, + cairo_scaled_font_t *scaled_font, + unsigned long glyph_index) +{ + if (surface->backend->supports_color_glyph != NULL) + return surface->backend->supports_color_glyph (surface, scaled_font, glyph_index); + + return FALSE; +} + +/** + * _cairo_surface_set_resolution: + * @surface: the surface + * @x_res: x resolution, in dpi + * @y_res: y resolution, in dpi + * + * Set the actual surface resolution of @surface to the given x and y DPI. + * Mainly used for correctly computing the scale factor when fallback + * rendering needs to take place in the paginated surface. + **/ +void +_cairo_surface_set_resolution (cairo_surface_t *surface, + double x_res, + double y_res) +{ + if (surface->status) + return; + + surface->x_resolution = x_res; + surface->y_resolution = y_res; +} + +/** + * _cairo_surface_create_in_error: + * @status: the error status + * + * Return an appropriate static error surface for the error status. + * On error, surface creation functions should always return a surface + * created with _cairo_surface_create_in_error() instead of a new surface + * in an error state. This simplifies internal code as no refcounting has + * to be done. + **/ +cairo_surface_t * +_cairo_surface_create_in_error (cairo_status_t status) +{ + assert (status < CAIRO_STATUS_LAST_STATUS); + switch (status) { + case CAIRO_STATUS_NO_MEMORY: + return (cairo_surface_t *) &_cairo_surface_nil; + case CAIRO_STATUS_SURFACE_TYPE_MISMATCH: + return (cairo_surface_t *) &_cairo_surface_nil_surface_type_mismatch; + case CAIRO_STATUS_INVALID_STATUS: + return (cairo_surface_t *) &_cairo_surface_nil_invalid_status; + case CAIRO_STATUS_INVALID_CONTENT: + return (cairo_surface_t *) &_cairo_surface_nil_invalid_content; + case CAIRO_STATUS_INVALID_FORMAT: + return (cairo_surface_t *) &_cairo_surface_nil_invalid_format; + case CAIRO_STATUS_INVALID_VISUAL: + return (cairo_surface_t *) &_cairo_surface_nil_invalid_visual; + case CAIRO_STATUS_READ_ERROR: + return (cairo_surface_t *) &_cairo_surface_nil_read_error; + case CAIRO_STATUS_WRITE_ERROR: + return (cairo_surface_t *) &_cairo_surface_nil_write_error; + case CAIRO_STATUS_FILE_NOT_FOUND: + return (cairo_surface_t *) &_cairo_surface_nil_file_not_found; + case CAIRO_STATUS_TEMP_FILE_ERROR: + return (cairo_surface_t *) &_cairo_surface_nil_temp_file_error; + case CAIRO_STATUS_INVALID_STRIDE: + return (cairo_surface_t *) &_cairo_surface_nil_invalid_stride; + case CAIRO_STATUS_INVALID_SIZE: + return (cairo_surface_t *) &_cairo_surface_nil_invalid_size; + case CAIRO_STATUS_DEVICE_TYPE_MISMATCH: + return (cairo_surface_t *) &_cairo_surface_nil_device_type_mismatch; + case CAIRO_STATUS_DEVICE_ERROR: + return (cairo_surface_t *) &_cairo_surface_nil_device_error; + case CAIRO_STATUS_PNG_ERROR: + return (cairo_surface_t *) &_cairo_surface_nil_png_error; + case CAIRO_STATUS_SUCCESS: + case CAIRO_STATUS_LAST_STATUS: + ASSERT_NOT_REACHED; + /* fall-through */ + case CAIRO_STATUS_INVALID_RESTORE: + case CAIRO_STATUS_INVALID_POP_GROUP: + case CAIRO_STATUS_NO_CURRENT_POINT: + case CAIRO_STATUS_INVALID_MATRIX: + case CAIRO_STATUS_NULL_POINTER: + case CAIRO_STATUS_INVALID_STRING: + case CAIRO_STATUS_INVALID_PATH_DATA: + case CAIRO_STATUS_SURFACE_FINISHED: + case CAIRO_STATUS_PATTERN_TYPE_MISMATCH: + case CAIRO_STATUS_INVALID_DASH: + case CAIRO_STATUS_INVALID_DSC_COMMENT: + case CAIRO_STATUS_INVALID_INDEX: + case CAIRO_STATUS_CLIP_NOT_REPRESENTABLE: + case CAIRO_STATUS_FONT_TYPE_MISMATCH: + case CAIRO_STATUS_USER_FONT_IMMUTABLE: + case CAIRO_STATUS_USER_FONT_ERROR: + case CAIRO_STATUS_NEGATIVE_COUNT: + case CAIRO_STATUS_INVALID_CLUSTERS: + case CAIRO_STATUS_INVALID_SLANT: + case CAIRO_STATUS_INVALID_WEIGHT: + case CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED: + case CAIRO_STATUS_INVALID_MESH_CONSTRUCTION: + case CAIRO_STATUS_DEVICE_FINISHED: + case CAIRO_STATUS_JBIG2_GLOBAL_MISSING: + case CAIRO_STATUS_FREETYPE_ERROR: + case CAIRO_STATUS_WIN32_GDI_ERROR: + case CAIRO_INT_STATUS_DWRITE_ERROR: + case CAIRO_STATUS_TAG_ERROR: + case CAIRO_STATUS_SVG_FONT_ERROR: + default: + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_surface_t *) &_cairo_surface_nil; + } +} + +cairo_surface_t * +_cairo_int_surface_create_in_error (cairo_int_status_t status) +{ + if (status < CAIRO_INT_STATUS_LAST_STATUS) + return _cairo_surface_create_in_error (status); + + switch ((int)status) { + case CAIRO_INT_STATUS_UNSUPPORTED: + return (cairo_surface_t *) &_cairo_surface_nil_unsupported; + case CAIRO_INT_STATUS_NOTHING_TO_DO: + return (cairo_surface_t *) &_cairo_surface_nil_nothing_to_do; + default: + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_surface_t *) &_cairo_surface_nil; + } +} + +/* LocalWords: rasterized + */ diff --git a/local/recipes/libs/cairo/source/src/cairo-svg-glyph-render.c b/local/recipes/libs/cairo/source/src/cairo-svg-glyph-render.c new file mode 100644 index 0000000000..d0448bbda5 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-svg-glyph-render.c @@ -0,0 +1,3244 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2022 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Adrian Johnson. + * + * Contributor(s): + * Adrian Johnson + */ + +#include "cairoint.h" +#include "cairo-array-private.h" +#include "cairo-ft-private.h" +#include "cairo-pattern-private.h" +#include "cairo-scaled-font-subsets-private.h" + +#include +#include +#include + +#if HAVE_FT_SVG_DOCUMENT + +#include +#include FT_COLOR_H + +/* #define SVG_RENDER_PRINT_FUNCTIONS 1 */ + +#define WHITE_SPACE_CHARS " \n\r\t\v\f" + +typedef struct { + const char *name; + int red; + int green; + int blue; +} color_name_t; + +/* Must be sorted */ +static color_name_t color_names[] = { + { "aliceblue", 240, 248, 255 }, + { "antiquewhite", 250, 235, 215 }, + { "aqua", 0, 255, 255 }, + { "aquamarine", 127, 255, 212 }, + { "azure", 240, 255, 255 }, + { "beige", 245, 245, 220 }, + { "bisque", 255, 228, 196 }, + { "black", 0, 0, 0 }, + { "blanchedalmond", 255, 235, 205 }, + { "blue", 0, 0, 255 }, + { "blueviolet", 138, 43, 226 }, + { "brown", 165, 42, 42 }, + { "burlywood", 222, 184, 135 }, + { "cadetblue", 95, 158, 160 }, + { "chartreuse", 127, 255, 0 }, + { "chocolate", 210, 105, 30 }, + { "coral", 255, 127, 80 }, + { "cornflowerblue", 100, 149, 237 }, + { "cornsilk", 255, 248, 220 }, + { "crimson", 220, 20, 60 }, + { "cyan", 0, 255, 255 }, + { "darkblue", 0, 0, 139 }, + { "darkcyan", 0, 139, 139 }, + { "darkgoldenrod", 184, 134, 11 }, + { "darkgray", 169, 169, 169 }, + { "darkgreen", 0, 100, 0 }, + { "darkgrey", 169, 169, 169 }, + { "darkkhaki", 189, 183, 107 }, + { "darkmagenta", 139, 0, 139 }, + { "darkolivegreen", 85, 107, 47 }, + { "darkorange", 255, 140, 0 }, + { "darkorchid", 153, 50, 204 }, + { "darkred", 139, 0, 0 }, + { "darksalmon", 233, 150, 122 }, + { "darkseagreen", 143, 188, 143 }, + { "darkslateblue", 72, 61, 139 }, + { "darkslategray", 47, 79, 79 }, + { "darkslategrey", 47, 79, 79 }, + { "darkturquoise", 0, 206, 209 }, + { "darkviolet", 148, 0, 211 }, + { "deeppink", 255, 20, 147 }, + { "deepskyblue", 0, 191, 255 }, + { "dimgray", 105, 105, 105 }, + { "dimgrey", 105, 105, 105 }, + { "dodgerblue", 30, 144, 255 }, + { "firebrick", 178, 34, 34 }, + { "floralwhite", 255, 250, 240 }, + { "forestgreen", 34, 139, 34 }, + { "fuchsia", 255, 0, 255 }, + { "gainsboro", 220, 220, 220 }, + { "ghostwhite", 248, 248, 255 }, + { "gold", 255, 215, 0 }, + { "goldenrod", 218, 165, 32 }, + { "gray", 128, 128, 128 }, + { "green", 0, 128, 0 }, + { "greenyellow", 173, 255, 47 }, + { "grey", 128, 128, 128 }, + { "honeydew", 240, 255, 240 }, + { "hotpink", 255, 105, 180 }, + { "indianred", 205, 92, 92 }, + { "indigo", 75, 0, 130 }, + { "ivory", 255, 255, 240 }, + { "khaki", 240, 230, 140 }, + { "lavender", 230, 230, 250 }, + { "lavenderblush", 255, 240, 245 }, + { "lawngreen", 124, 252, 0 }, + { "lemonchiffon", 255, 250, 205 }, + { "lightblue", 173, 216, 230 }, + { "lightcoral", 240, 128, 128 }, + { "lightcyan", 224, 255, 255 }, + { "lightgoldenrodyellow", 250, 250, 210 }, + { "lightgray", 211, 211, 211 }, + { "lightgreen", 144, 238, 144 }, + { "lightgrey", 211, 211, 211 }, + { "lightpink", 255, 182, 193 }, + { "lightsalmon", 255, 160, 122 }, + { "lightseagreen", 32, 178, 170 }, + { "lightskyblue", 135, 206, 250 }, + { "lightslategray", 119, 136, 153 }, + { "lightslategrey", 119, 136, 153 }, + { "lightsteelblue", 176, 196, 222 }, + { "lightyellow", 255, 255, 224 }, + { "lime", 0, 255, 0 }, + { "limegreen", 50, 205, 50 }, + { "linen", 250, 240, 230 }, + { "magenta", 255, 0, 255 }, + { "maroon", 128, 0, 0 }, + { "mediumaquamarine", 102, 205, 170 }, + { "mediumblue", 0, 0, 205 }, + { "mediumorchid", 186, 85, 211 }, + { "mediumpurple", 147, 112, 219 }, + { "mediumseagreen", 60, 179, 113 }, + { "mediumslateblue", 123, 104, 238 }, + { "mediumspringgreen", 0, 250, 154 }, + { "mediumturquoise", 72, 209, 204 }, + { "mediumvioletred", 199, 21, 133 }, + { "midnightblue", 25, 25, 112 }, + { "mintcream", 245, 255, 250 }, + { "mistyrose", 255, 228, 225 }, + { "moccasin", 255, 228, 181 }, + { "navajowhite", 255, 222, 173 }, + { "navy", 0, 0, 128 }, + { "oldlace", 253, 245, 230 }, + { "olive", 128, 128, 0 }, + { "olivedrab", 107, 142, 35 }, + { "orange", 255, 165, 0 }, + { "orangered", 255, 69, 0 }, + { "orchid", 218, 112, 214 }, + { "palegoldenrod", 238, 232, 170 }, + { "palegreen", 152, 251, 152 }, + { "paleturquoise", 175, 238, 238 }, + { "palevioletred", 219, 112, 147 }, + { "papayawhip", 255, 239, 213 }, + { "peachpuff", 255, 218, 185 }, + { "peru", 205, 133, 63 }, + { "pink", 255, 192, 203 }, + { "plum", 221, 160, 221 }, + { "powderblue", 176, 224, 230 }, + { "purple", 128, 0, 128 }, + { "red", 255, 0, 0 }, + { "rosybrown", 188, 143, 143 }, + { "royalblue", 65, 105, 225 }, + { "saddlebrown", 139, 69, 19 }, + { "salmon", 250, 128, 114 }, + { "sandybrown", 244, 164, 96 }, + { "seagreen", 46, 139, 87 }, + { "seashell", 255, 245, 238 }, + { "sienna", 160, 82, 45 }, + { "silver", 192, 192, 192 }, + { "skyblue", 135, 206, 235 }, + { "slateblue", 106, 90, 205 }, + { "slategray", 112, 128, 144 }, + { "slategrey", 112, 128, 144 }, + { "snow", 255, 250, 250 }, + { "springgreen", 0, 255, 127 }, + { "steelblue", 70, 130, 180 }, + { "tan", 210, 180, 140 }, + { "teal", 0, 128, 128 }, + { "thistle", 216, 191, 216 }, + { "tomato", 255, 99, 71 }, + { "turquoise", 64, 224, 208 }, + { "violet", 238, 130, 238 }, + { "wheat", 245, 222, 179 }, + { "white", 255, 255, 255 }, + { "whitesmoke", 245, 245, 245 }, + { "yellow", 255, 255, 0 }, + { "yellowgreen", 154, 205, 50 } +}; + +typedef struct { + char *name; + char *value; +} svg_attribute_t; + +typedef enum { + CONTAINER_ELEMENT, + EMPTY_ELEMENT, + PROCESSING_INSTRUCTION, + DOCTYPE, + CDATA, + COMMENT +} tag_type_t; + +#define TOP_ELEMENT_TAG "_top" + +typedef struct _cairo_svg_element { + cairo_hash_entry_t base; + tag_type_t type; + char *tag; + char *id; + cairo_array_t attributes; /* svg_attribute_t */ + cairo_array_t children; /* cairo_svg_element_t* */ + cairo_array_t content; /* char */ + cairo_pattern_t *pattern; /* defined if a paint server */ + struct _cairo_svg_element *next; /* next on element stack */ +} cairo_svg_element_t; + +typedef struct _cairo_svg_color { + enum { RGB, FOREGROUND } type; + double red; + double green; + double blue; +} cairo_svg_color_t; + +typedef struct _cairo_svg_paint { + enum { PAINT_COLOR, PAINT_SERVER, PAINT_NONE } type; + cairo_svg_color_t color; + cairo_svg_element_t *paint_server; +} cairo_svg_paint_t; + +typedef enum { + GS_RENDER, + GS_NO_RENDER, + GS_COMPUTE_BBOX, + GS_CLIP +} gs_mode_t; + +typedef struct _cairo_svg_graphics_state { + cairo_svg_paint_t fill; + cairo_svg_paint_t stroke; + cairo_svg_color_t color; + double fill_opacity; + double stroke_opacity; + double opacity; + cairo_fill_rule_t fill_rule; + cairo_fill_rule_t clip_rule; + cairo_path_t *clip_path; + char *dash_array; + double dash_offset; + gs_mode_t mode; + struct { + double x; + double y; + double width; + double height; + } bbox; + struct _cairo_svg_graphics_state *next; +} cairo_svg_graphics_state_t; + +typedef enum { + BUILD_PATTERN_NONE, + BUILD_PATTERN_LINEAR, + BUILD_PATTERN_RADIAL +} build_pattern_t; + +typedef struct _cairo_svg_glyph_render { + cairo_svg_element_t *tree; + cairo_hash_table_t *ids; + cairo_svg_graphics_state_t *graphics_state; + cairo_t *cr; + double units_per_em; + struct { + cairo_svg_element_t *paint_server; + cairo_pattern_t *pattern; + build_pattern_t type; + } build_pattern; + int render_element_tree_depth; + int num_palette_entries; + FT_Color* palette; + + /* Viewport */ + double width; + double height; + cairo_bool_t view_port_set; + + cairo_pattern_t *foreground_marker; + cairo_pattern_t *foreground_source; + cairo_bool_t foreground_source_used; + + int debug; /* 0 = quiet, 1 = errors, 2 = warnings, 3 = info */ +} cairo_svg_glyph_render_t; + + +#define SVG_RENDER_ERROR 1 +#define SVG_RENDER_WARNING 2 +#define SVG_RENDER_INFO 3 + +#define print_error(render, ...) cairo_svg_glyph_render_printf(render, SVG_RENDER_ERROR, ##__VA_ARGS__) +#define print_warning(render, ...) cairo_svg_glyph_render_printf(render, SVG_RENDER_WARNING, ##__VA_ARGS__) +#define print_info(render, ...) cairo_svg_glyph_render_printf(render, SVG_RENDER_INFO, ##__VA_ARGS__) + +static void +cairo_svg_glyph_render_printf (cairo_svg_glyph_render_t *svg_render, + int level, + const char *fmt, ...) CAIRO_PRINTF_FORMAT (3, 4); + +static void +cairo_svg_glyph_render_printf (cairo_svg_glyph_render_t *svg_render, + int level, + const char *fmt, ...) +{ + va_list ap; + + if (svg_render->debug >= level ) { + switch (level) { + case SVG_RENDER_ERROR: + printf("ERROR: "); + break; + case SVG_RENDER_WARNING: + printf("WARNING: "); + break; + } + va_start (ap, fmt); + vprintf (fmt, ap); + va_end (ap); + printf ("\n"); + } +} + +static cairo_bool_t +string_equal (const char *s1, const char *s2) +{ + if (s1 && s2) + return strcmp (s1, s2) == 0; + + if (!s1 && !s2) + return TRUE; + + return FALSE; +} + +static cairo_bool_t +string_match (const char **p, const char *str) +{ + if (*p && strncmp (*p, str, strlen (str)) == 0) { + *p += strlen (str); + return TRUE; + } + return FALSE; +} + +static const char * +skip_space (const char *p) +{ + while (*p && _cairo_isspace (*p)) + p++; + + return p; +} + +/* Skip over character c and and whitespace before or after. Returns + * NULL if c not found. */ +static const char * +skip_char (const char *p, char c) +{ + while (_cairo_isspace (*p)) + p++; + + if (*p != c) + return NULL; + + p++; + + while (_cairo_isspace (*p)) + p++; + + return p; +} + +static int +_color_name_compare (const void *a, const void *b) +{ + const color_name_t *a_color = a; + const color_name_t *b_color = b; + + return strcmp (a_color->name, b_color->name); +} + +static void +init_element_id_key (cairo_svg_element_t *element) +{ + element->base.hash = _cairo_hash_string (element->id); +} + +static cairo_bool_t +_element_id_equal (const void *key_a, const void *key_b) +{ + const cairo_svg_element_t *a = key_a; + const cairo_svg_element_t *b = key_b; + + return string_equal (a->id, b->id); +} + +/* Find element with the "id" attribute matching id. id may have the + * '#' prefix. It will be stripped before searching. + */ +static cairo_svg_element_t * +lookup_element (cairo_svg_glyph_render_t *svg_render, const char *id) +{ + cairo_svg_element_t key; + + if (!id || strlen (id) < 1) + return NULL; + + key.id = (char *)(id[0] == '#' ? id + 1 : id); + init_element_id_key (&key); + return _cairo_hash_table_lookup (svg_render->ids, &key.base); +} + +/* Find element with the "id" attribute matching url where url is of + * the form "url(#id)". + */ +static cairo_svg_element_t * +lookup_url_element (cairo_svg_glyph_render_t *svg_render, const char *url) +{ + const char *p = url; + cairo_svg_element_t *element = NULL; + + if (p && string_match (&p, "url")) { + p = skip_char (p, '('); + if (!p) + return NULL; + + const char *end = strpbrk(p, WHITE_SPACE_CHARS ")"); + if (end) { + char *id = _cairo_strndup (p, end - p); + element = lookup_element (svg_render, id); + free (id); + } + } + return element; +} + +static const char * +get_attribute (const cairo_svg_element_t *element, const char *name) +{ + svg_attribute_t attr; + int num_elems, i; + + num_elems = _cairo_array_num_elements (&element->attributes); + for (i = 0; i < num_elems; i++) { + _cairo_array_copy_element (&element->attributes, i, &attr); + if (string_equal (attr.name, name)) + return attr.value; + } + return NULL; +} + +static const char * +get_href_attribute (const cairo_svg_element_t *element) +{ + svg_attribute_t attr; + int num_elems, i, len; + + /* SVG2 requires the href attribute to be "href". Older versions + * used "xlink:href". I have seen at least one font that used an + * alternative name space eg "ns1:href". To keep things simple we + * search for an attribute named "href" or ending in ":href". + */ + num_elems = _cairo_array_num_elements (&element->attributes); + for (i = 0; i < num_elems; i++) { + _cairo_array_copy_element (&element->attributes, i, &attr); + if (string_equal (attr.name, "href")) + return attr.value; + + len = strlen (attr.name); + if (len > 4 && string_equal (attr.name + len - 5, ":href")) + return attr.value; + } + return NULL; +} + +/* Get a float attribute or float percentage. If attribute is a + * percentage, the returned value is percentage * scale. Does not + * modify value if it returns FALSE. This allows value to be set to a + * default before calling get_float_attribute(), then used without + * checking the return value of this function. + */ +static cairo_bool_t +get_float_or_percent_attribute (const cairo_svg_element_t *element, + const char *name, + double scale, + double *value) +{ + const char *p; + char *end; + double v; + + p = get_attribute (element, name); + if (p) { + v = _cairo_strtod (p, &end); + if (end != p) { + *value = v; + if (*end == '%') + *value *= scale / 100.0; + return TRUE; + } + } + return FALSE; +} + +/* Does not modify value if it returns FALSE. This allows value to be + * set to a default before calling get_float_attribute(), then used + * without checking the return value of this function. + */ +static cairo_bool_t +get_float_attribute (const cairo_svg_element_t *element, const char *name, double *value) +{ + const char *p; + char *end; + double v; + + p = get_attribute (element, name); + if (p) { + v = _cairo_strtod (p, &end); + if (end != p) { + *value = v; + return TRUE; + } + } + return FALSE; +} + +static cairo_fill_rule_t +get_fill_rule_attribute (const cairo_svg_element_t *element, const char *name, cairo_fill_rule_t default_value) +{ + const char *p; + + p = get_attribute (element, name); + if (string_equal (p, "nonzero")) + return CAIRO_FILL_RULE_WINDING; + else if (string_equal (p, "evenodd")) + return CAIRO_FILL_RULE_EVEN_ODD; + else + return default_value; +} + +static void +free_elements (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element) +{ + int num_elems; + + num_elems = _cairo_array_num_elements (&element->children); + for (int i = 0; i < num_elems; i++) { + cairo_svg_element_t *child; + _cairo_array_copy_element (&element->children, i, &child); + free_elements (svg_render, child); + } + _cairo_array_fini (&element->children); + + num_elems = _cairo_array_num_elements (&element->attributes); + for (int i = 0; i < num_elems; i++) { + svg_attribute_t *attr = _cairo_array_index (&element->attributes, i); + free (attr->name); + free (attr->value); + } + _cairo_array_fini (&element->attributes); + _cairo_array_fini (&element->content); + + free (element->tag); + + if (element->id) { + _cairo_hash_table_remove (svg_render->ids, &element->base); + free (element->id); + } + + if (element->pattern) + cairo_pattern_destroy (element->pattern); + + free (element); +} + +#if SVG_RENDER_PRINT_FUNCTIONS + +static void indent(int level) +{ + for (int i = 1; i < level; i++) + printf(" "); +} + +static void +print_element (cairo_svg_element_t *element, cairo_bool_t recurse, int level) +{ + char *content = strndup (_cairo_array_index_const (&element->content, 0), + _cairo_array_num_elements (&element->content)); + + indent(level); + if (element->type == COMMENT) { + printf("\n", content); + } else if (element->type == CDATA) { + printf("\n", content); + } else if (element->type == DOCTYPE) { + printf("\n", content); + } else if (element->type == PROCESSING_INSTRUCTION) { + printf("\n", content); + } else { + cairo_bool_t top_element = string_equal (element->tag, TOP_ELEMENT_TAG); + + if (!top_element) { + printf("<%s", element->tag); + int num_elems = _cairo_array_num_elements (&element->attributes); + for (int i = 0; i < num_elems; i++) { + svg_attribute_t *attr = _cairo_array_index (&element->attributes, i); + printf(" %s=\"%s\"", attr->name, attr->value); + } + if (num_elems > 0) + printf(" "); + + if (element->type == EMPTY_ELEMENT) + printf("/>\n"); + else + printf(">\n"); + } + + if (element->type == CONTAINER_ELEMENT) { + if (recurse) { + int num_elems = _cairo_array_num_elements (&element->children); + for (int i = 0; i < num_elems; i++) { + cairo_svg_element_t *child; + _cairo_array_copy_element (&element->children, i, &child); + print_element (child, TRUE, level + 1); + } + } + if (!top_element) + printf("\n", element->tag); + } + } + free (content); +} +#endif + +static const char * +parse_list_of_floats (const char *p, + int num_required, + int num_optional, + cairo_bool_t *have_optional, + va_list ap) +{ + double d; + double *dp; + char *end; + const char *q = NULL; + int num_found = 0; + + for (int i = 0; i < num_required + num_optional; i++) { + while (p && (*p == ',' || _cairo_isspace (*p))) + p++; + + if (!p) + break; + + d = _cairo_strtod (p, &end); + if (end == p) { + p = NULL; + break; + } + p = end; + dp = va_arg (ap, double *); + *dp = d; + num_found++; + if (num_found == num_required) + q = p; + } + + if (num_optional > 0) { + if (num_found == num_required + num_optional) { + *have_optional = TRUE; + } else { + *have_optional = FALSE; + /* restore pointer to end of required floats */ + p = q; + } + } + + return p; +} + +static const char * +get_floats (const char *p, + int num_required, + int num_optional, + cairo_bool_t *have_optional, + ...) +{ + va_list ap; + + va_start (ap, have_optional); + p = parse_list_of_floats (p, num_required, num_optional, have_optional, ap); + va_end (ap); + return p; +} + +static const char * +get_path_params (const char *p, int num_params, ...) +{ + va_list ap; + + va_start (ap, num_params); + p = parse_list_of_floats (p, num_params, 0, NULL, ap); + va_end (ap); + return p; +} + +static cairo_bool_t +get_color (cairo_svg_glyph_render_t *svg_render, + const char *s, + cairo_svg_color_t *color) +{ + int len, matched; + unsigned r = 0, g = 0, b = 0; + + if (!s) + return FALSE; + + len = strlen(s); + + if (string_equal (s, "inherit")) { + return FALSE; + } else if (string_equal (s, "currentColor") || + string_equal (s, "context-fill") || + string_equal (s, "context-stroke")) + { + *color = svg_render->graphics_state->color; + return TRUE; + } else if (len > 0 && s[0] == '#') { + if (len == 4) { + matched = sscanf (s + 1, "%1x%1x%1x", &r, &g, &b); + if (matched == 3) { + /* Each digit is repeated to convert to 6 digits. eg 0x123 -> 0x112233 */ + color->type = RGB; + color->red = 0x11*r/255.0; + color->green = 0x11*g/255.0; + color->blue = 0x11*b/255.0; + return TRUE; + } + } else if (len == 7) { + matched = sscanf (s + 1, "%2x%2x%2x", &r, &g, &b); + if (matched == 3) { + color->type = RGB; + color->red = r/255.0; + color->green = g/255.0; + color->blue = b/255.0; + return TRUE; + } + } + } else if (strncmp (s, "rgb", 3) == 0) { + matched = sscanf (s, "rgb ( %u , %u , %u )", &r, &g, &b); + if (matched == 3) { + color->type = RGB; + color->red = r/255.0; + color->green = g/255.0; + color->blue = b/255.0; + return TRUE; + } + } else if (strncmp (s, "var", 3) == 0) { + /* CPAL palettes colors. eg "var(--color0, yellow)" */ + s += 3; + s = skip_char (s, '('); + if (!string_match (&s, "--color")) + return FALSE; + + char *end; + int entry = strtol (s, &end, 10); + if (end == s) + return FALSE; + + if (svg_render->palette && entry >= 0 && entry < svg_render->num_palette_entries) { + FT_Color *palette_color = &svg_render->palette[entry]; + color->type = RGB; + color->red = palette_color->red / 255.0; + color->green = palette_color->green/ 255.0; + color->blue = palette_color->blue / 255.0; + return TRUE; + } else { + /* Fallback color */ + s = skip_char (end, ','); + if (!s) + return FALSE; + + end = strpbrk(s, WHITE_SPACE_CHARS ")"); + if (!end || end == s) + return FALSE; + + char *fallback = _cairo_strndup (s, end - s); + cairo_bool_t success = get_color (svg_render, fallback, color); + free (fallback); + return success; + } + } else { + const color_name_t *color_name; + color_name_t color_name_key; + + color_name_key.name = (char *) s; + color_name = bsearch (&color_name_key, + color_names, + ARRAY_LENGTH (color_names), + sizeof (color_name_t), + _color_name_compare); + if (color_name) { + color->type = RGB; + color->red = color_name->red/255.0; + color->green = color_name->green/255.0; + color->blue = color_name->blue/255.0; + return TRUE; + } + } + return FALSE; +} + +static void +get_paint (cairo_svg_glyph_render_t *svg_render, + const char *p, + cairo_svg_paint_t *paint) +{ + cairo_svg_element_t *element; + + if (string_match (&p, "none")) { + paint->type = PAINT_NONE; + paint->paint_server = NULL; + } else if (p && strncmp (p, "url", 3) == 0) { + element = lookup_url_element (svg_render, p); + if (element) { + paint->type = PAINT_SERVER; + paint->paint_server = element; + } + } else { + if (get_color (svg_render, p, &paint->color)) { + paint->type = PAINT_COLOR; + paint->paint_server = NULL; + } + } +} + +#ifdef SVG_RENDER_PRINT_FUNCTIONS + +static void +print_color (cairo_svg_color_t *color) +{ + switch (color->type) { + case FOREGROUND_COLOR: + printf("foreground"); + break; + case RGB: + printf("#%02x%02x%02x", + (int)(color->red*255), + (int)(color->red*255), + (int)(color->red*255)); + break; + } +} + +static void +print_paint (cairo_svg_paint_t *paint) +{ + printf("Paint: "); + switch (paint->type) { + case PAINT_COLOR: + printf("color: "); + print_color (&paint->color); + break; + case PAINT_SERVER: + printf("server: %s", paint->paint_server->tag); + break; + case PAINT_NONE: + printf("none"); + break; + } + printf("\n"); +} + +#endif + +static void +parse_error (cairo_svg_glyph_render_t *svg_render, + const char *string, + const char *location, + const char *fmt, + ...) CAIRO_PRINTF_FORMAT (4, 5); + +static void +parse_error (cairo_svg_glyph_render_t *svg_render, + const char *string, + const char *location, + const char *fmt, + ...) +{ + va_list ap; + const int context = 40; + const char *start; + const char *end; + + if (svg_render->debug >= SVG_RENDER_ERROR) { + printf("ERROR: "); + va_start (ap, fmt); + vprintf (fmt, ap); + va_end (ap); + putchar ('\n'); + start = location - context; + if (start < string) + start = string; + + end = location + strlen (location); + if (end - location > context) + end = location + context; + + for (const char *p = start; p < end; p++) { + if (_cairo_isspace (*p)) + putchar (' '); + else + putchar (*p); + } + putchar ('\n'); + + for (int i = 0; i < location - start; i++) + putchar(' '); + putchar ('^'); + putchar ('\n'); + printf (" at position %td\n", location - string); + } +} + +static cairo_bool_t +append_attribute (cairo_svg_element_t *element, svg_attribute_t *attribute) +{ + const char *p; + const char *end; + svg_attribute_t attr; + + memset (&attr, 0, sizeof (attr)); + if (string_equal (attribute->name, "style")) { + /* split style into individual attributes */ + p = attribute->value; + while (*p) { + end = strchr (p, ':'); + if (!end || end == p) + break; + attr.name = _cairo_strndup (p, end - p); + p = end + 1; + p = skip_space(p); + end = strchr (p, ';'); + if (!end) + end = strchr (p, 0); + if (end == p) + goto split_style_fail; + + attr.value = _cairo_strndup (p, end - p); + if (*end) + p = end + 1; + + if (_cairo_array_append (&element->attributes, &attr)) + goto split_style_fail; + + memset (&attr, 0, sizeof (attr)); + p = skip_space (p); + } + } + + if (_cairo_array_append (&element->attributes, attribute)) + return FALSE; + + return TRUE; + + split_style_fail: + free (attr.name); + free (attr.value); + return FALSE; +} + +static cairo_bool_t +add_child_element (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *parent, + cairo_svg_element_t *child) +{ + cairo_status_t status; + const char* id; + + id = get_attribute (child, "id"); + if (id) { + child->id = strdup (id); + init_element_id_key (child); + status = _cairo_hash_table_insert (svg_render->ids, &child->base); + if (unlikely (status)) + return FALSE; + } + + status = _cairo_array_append (&parent->children, &child); + return status == CAIRO_STATUS_SUCCESS; +} + +static cairo_svg_element_t * +create_element (tag_type_t type, char *tag) +{ + cairo_svg_element_t *elem; + cairo_status_t status; + + elem = _cairo_calloc (sizeof (cairo_svg_element_t)); + if (unlikely (elem == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + return NULL; + } + + elem->type = type; + elem->tag = tag; + elem->id = NULL; + _cairo_array_init (&elem->attributes, sizeof(svg_attribute_t)); + _cairo_array_init (&elem->children, sizeof(cairo_svg_element_t *)); + _cairo_array_init (&elem->content, sizeof(char)); + elem->pattern = NULL; + elem->next = NULL; + + return elem; +} + +static const char * +parse_attributes (cairo_svg_glyph_render_t *svg_render, + const char *attributes, + cairo_svg_element_t *element) +{ + svg_attribute_t attr; + char quote_char; + const char *p; + const char *end; + + p = attributes; + memset (&attr, 0, sizeof (svg_attribute_t)); + p = skip_space (p); + while (*p && *p != '/' && *p != '>' && *p != '?') { + end = strpbrk(p, WHITE_SPACE_CHARS "="); + if (!end) { + parse_error (svg_render, attributes, p, "Could not find '='"); + goto fail; + } + + if (end == p) { + parse_error (svg_render, attributes, p, "Missing attribute name"); + goto fail; + } + + attr.name = _cairo_strndup (p, end - p); + p = end; + + p = skip_space (p); + if (*p != '=') { + parse_error (svg_render, attributes, p, "Expected '='"); + goto fail; + } + + p++; + p = skip_space (p); + if (*p == '\"' || *p == '\'') { + quote_char = *p; + } else { + parse_error (svg_render, attributes, p, "Could not find '\"' or '''"); + goto fail; + } + + p++; + end = strchr (p, quote_char); + if (!end) { + parse_error (svg_render, attributes, p, "Could not find '%c'", quote_char); + goto fail; + } + + attr.value = _cairo_strndup (p, end - p); + p = end + 1; + + if (!append_attribute (element, &attr)) + goto fail; + + memset (&attr, 0, sizeof (svg_attribute_t)); + + p = skip_space (p); + } + + return p; + + fail: + free (attr.name); + free (attr.value); + return NULL; +} + +static cairo_bool_t +parse_svg (cairo_svg_glyph_render_t *svg_render, + const char *svg_document) +{ + const char *p = svg_document; + const char *end; + int nesting; /* when > 0 we parse content */ + cairo_svg_element_t *open_elem; /* Stack of open elements */ + cairo_svg_element_t *new_elem = NULL; + char *name; + cairo_status_t status; + + /* Create top level element to use as a container for all top + * level elements in the document and push it on the stack. */ + open_elem = create_element (CONTAINER_ELEMENT, strdup(TOP_ELEMENT_TAG)); + + /* We don't want to add content to the top level container. There + * should only be whitesapce between tags. */ + nesting = 0; + + while (*p) { + if (nesting > 0) { + /* In an open element. Anything before the next '<' is content */ + end = strchr (p, '<'); + if (!end) { + parse_error (svg_render, svg_document, p, "Could not find '<'"); + goto fail; + } + status = _cairo_array_append_multiple (&open_elem->content, p, end - p); + p = end; + + } else { + p = skip_space (p); + if (*p == 0) + break; /* end of document */ + } + + /* We should now be at the start of a tag */ + if (*p != '<') { + parse_error (svg_render, svg_document, p, "Could not find '<'"); + goto fail; + } + + p++; + if (*p == '!') { + p++; + if (string_match (&p, "[CDATA[")) { + new_elem = create_element (CDATA, NULL); + end = strstr (p, "]]>"); + if (!end) { + parse_error (svg_render, svg_document, p, "Could not find ']]>'"); + goto fail; + } + + status = _cairo_array_append_multiple (&new_elem->content, p, end - p); + p = end + 3; + } else if (string_match (&p, "--")) { + new_elem = create_element (COMMENT, NULL); + end = strstr (p, "-->"); + if (!end) { + parse_error (svg_render, svg_document, p, "Could not find '-->'"); + goto fail; + } + + status = _cairo_array_append_multiple (&new_elem->content, p, end - p); + p = end + 3; + } else if (string_match (&p, "DOCTYPE")) { + new_elem = create_element (DOCTYPE, NULL); + end = strchr (p, '>'); + if (!end) { + parse_error (svg_render, svg_document, p, "Could not find '>'"); + goto fail; + } + + status = _cairo_array_append_multiple (&new_elem->content, p, end - p); + p = end + 1; + } else { + parse_error (svg_render, svg_document, p, "Invalid"); + goto fail; + } + + if (!add_child_element (svg_render, open_elem, new_elem)) + goto fail; + + new_elem = NULL; + continue; + } + + if (*p == '?') { + p++; + new_elem = create_element (PROCESSING_INSTRUCTION, NULL); + end = strstr (p, "?>"); + if (!end) { + parse_error (svg_render, svg_document, p, "Could not find '?>'"); + goto fail; + } + + status = _cairo_array_append_multiple (&new_elem->content, p, end - p); + p = end + 2; + + if (!add_child_element (svg_render, open_elem, new_elem)) + goto fail; + + new_elem = NULL; + continue; + } + + if (*p == '/') { + /* Closing tag */ + p++; + + /* find end of tag name */ + end = strpbrk(p, WHITE_SPACE_CHARS ">"); + if (!end) { + parse_error (svg_render, svg_document, p, "Could not find '>'"); + goto fail; + } + + name = _cairo_strndup (p, end - p); + p = end; + p = skip_space (p); + if (*p != '>') { + parse_error (svg_render, svg_document, p, "Could not find '>'"); + free (name); + goto fail; + } + + p++; + if (nesting == 0) { + parse_error (svg_render, svg_document, p, "parse_elements: parsed but no matching start tag", name); + free (name); + goto fail; + } + if (!string_equal (name, open_elem->tag)) { + parse_error (svg_render, svg_document, p, + "parse_elements: found but current open tag is <%s>", + name, open_elem->tag); + free (name); + goto fail; + } + + /* pop top element on open elements stack into new_elem */ + new_elem = open_elem; + open_elem = open_elem->next; + new_elem->next = NULL; + nesting--; + + free (name); + if (!add_child_element (svg_render, open_elem, new_elem)) + goto fail; + + new_elem = NULL; + continue; + } + + /* We should now be in a start or empty element tag */ + + /* find end of tag name */ + end = strpbrk(p, WHITE_SPACE_CHARS "/>"); + if (!end) { + parse_error (svg_render, svg_document, p, "Could not find '>'"); + goto fail; + } + + name = _cairo_strndup (p, end - p); + p = end; + + new_elem = create_element (CONTAINER_ELEMENT, name); + p = parse_attributes (svg_render, p, new_elem); + if (!p) + goto fail; + + p = skip_space (p); + if (*p == '/') { + new_elem->type = EMPTY_ELEMENT; + p++; + } + + if (!p || *p != '>') { + print_error (svg_render, "Could not find '>'"); + goto fail; + } + + p++; + if (new_elem->type == EMPTY_ELEMENT) { + if (!add_child_element (svg_render, open_elem, new_elem)) + goto fail; + + new_elem = NULL; + } else { + /* push new elem onto open elements stack */ + new_elem->next = open_elem; + open_elem = new_elem; + new_elem = NULL; + nesting++; + } + } + + if (nesting != 0) { + parse_error (svg_render, svg_document, p, "Missing closing tag for <%s>", open_elem->tag); + goto fail; + } + + svg_render->tree = open_elem; + return TRUE; + + fail: + if (new_elem) + free_elements (svg_render, new_elem); + + while (open_elem) { + cairo_svg_element_t *elem = open_elem; + open_elem = open_elem->next; + free_elements (svg_render, elem); + } + + return FALSE; +} + +static cairo_bool_t +parse_transform (const char *p, cairo_matrix_t *matrix) +{ + cairo_matrix_t m; + double x, y, a; + cairo_bool_t have_optional; + + cairo_matrix_init_identity (matrix); + while (p) { + while (p && (*p == ',' || _cairo_isspace (*p))) + p++; + + if (!p || *p == 0) + break; + + if (string_match (&p, "matrix")) { + p = skip_char (p, '('); + if (!p) + break; + + p = get_floats (p, 6, 0, NULL, &m.xx, &m.yx, &m.xy, &m.yy, &m.x0, &m.y0); + if (!p) + break; + + p = skip_char (p, ')'); + if (!p) + break; + + cairo_matrix_multiply (matrix, &m, matrix); + + } else if (string_match (&p, "translate")) { + p = skip_char (p, '('); + if (!p) + break; + + p = get_floats (p, 1, 1, &have_optional, &x, &y); + if (!p) + break; + + p = skip_char (p, ')'); + if (!p) + break; + + if (!have_optional) + y = 0; + + cairo_matrix_translate (matrix, x, y); + + } else if (string_match (&p, "scale")) { + p = skip_char (p, '('); + if (!p) + break; + + p = get_floats (p, 1, 1, &have_optional, &x, &y); + if (!p) + break; + + p = skip_char (p, ')'); + if (!p) + break; + + if (!have_optional) + y = x; + + cairo_matrix_scale (matrix, x, y); + + } else if (string_match (&p, "rotate")) { + p = skip_char (p, '('); + if (!p) + break; + + p = get_floats (p, 1, 2, &have_optional, &a, &x, &y); + if (!p) + break; + + p = skip_char (p, ')'); + if (!p) + break; + + if (!have_optional) { + x = 0; + y = 0; + } + + a *= M_PI/180.0; + cairo_matrix_translate (matrix, x, y); + cairo_matrix_rotate (matrix, a); + cairo_matrix_translate (matrix, -x, -y); + + } else if (string_match (&p, "skewX")) { + p = skip_char (p, '('); + if (!p) + break; + + p = get_floats (p, 1, 0, NULL, &a); + if (!p) + break; + + p = skip_char (p, ')'); + if (!p) + break; + + a *= M_PI/180.0; + cairo_matrix_init_identity (&m); + m.xy = tan (a); + cairo_matrix_multiply (matrix, &m, matrix); + + } else if (string_match (&p, "skewY")) { + p = skip_char (p, '('); + if (!p) + break; + + p = get_floats (p, 1, 0, NULL, &a); + if (!p) + break; + + p = skip_char (p, ')'); + if (!p) + break; + + a *= M_PI/180.0; + cairo_matrix_init_identity (&m); + m.yx = tan (a); + cairo_matrix_multiply (matrix, &m, matrix); + + } else { + break; + } + } + return p != NULL; +} + +static void +render_element_tree (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_svg_element_t *display_element, + cairo_bool_t children_only); + +static cairo_pattern_t * +create_pattern (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *paint_server) +{ + cairo_pattern_t *pattern = NULL; + + if (paint_server) { + svg_render->build_pattern.paint_server = paint_server; + render_element_tree (svg_render, paint_server, NULL, FALSE); + pattern = svg_render->build_pattern.pattern; + svg_render->build_pattern.pattern = NULL; + svg_render->build_pattern.paint_server = NULL; + svg_render->build_pattern.type = BUILD_PATTERN_NONE; + } + + if (!pattern) + pattern = cairo_pattern_create_rgb (0, 0, 0); + + return pattern; +} + +static cairo_bool_t +render_element_svg (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + double width, height; + double vb_x, vb_y, vb_height, vb_width; + const char *p; + const char *end; + + if (end_tag) + return FALSE; + + /* Default viewport width, height is EM square */ + if (!get_float_or_percent_attribute (element, "width", svg_render->units_per_em, &width)) + width = svg_render->units_per_em; + + if (!get_float_or_percent_attribute (element, "height", svg_render->units_per_em, &height)) + height = svg_render->units_per_em; + + /* Transform viewport to unit square, centering it if width != height. */ + if (width > height) { + cairo_scale (svg_render->cr, 1.0/width, 1.0/width); + cairo_translate (svg_render->cr, 0, (width - height)/2.0); + } else { + cairo_scale (svg_render->cr, 1.0/height, 1.0/height); + cairo_translate (svg_render->cr, (height - width)/2.0, 0); + } + + svg_render->width = width; + svg_render->height = height; + + p = get_attribute (element, "viewBox"); + if (p) { + /* Transform viewport to viewbox */ + end = get_path_params (p, 4, &vb_x, &vb_y, &vb_width, &vb_height); + if (!end) { + print_warning (svg_render, "viewBox expected 4 numbers: %s", p); + return FALSE; + } + cairo_translate (svg_render->cr, -vb_x * width/vb_width, -vb_y * width/vb_width); + cairo_scale (svg_render->cr, width/vb_width, height/vb_height); + svg_render->width = vb_width; + svg_render->height = vb_height; + } + + svg_render->view_port_set = TRUE; + return TRUE; +} + +static cairo_bool_t +render_element_clip_path (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + cairo_svg_graphics_state_t *gs = svg_render->graphics_state; + const char *p; + + if (end_tag || gs->mode != GS_CLIP || svg_render->build_pattern.type != BUILD_PATTERN_NONE) { + return FALSE; + } + + p = get_attribute (element, "clipPathUnits"); + if (string_equal (p, "objectBoundingBox")) { + cairo_translate (svg_render->cr, + svg_render->graphics_state->bbox.x, + svg_render->graphics_state->bbox.y); + cairo_scale (svg_render->cr, + svg_render->graphics_state->bbox.width, + svg_render->graphics_state->bbox.height); + } + + return TRUE; +} + +static void +apply_gradient_attributes (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element) +{ + cairo_pattern_t *pattern = svg_render->build_pattern.pattern; + cairo_bool_t object_bbox = TRUE; + cairo_matrix_t transform; + cairo_matrix_t mat; + const char *p; + + if (!pattern) + return; + + p = get_attribute (element, "gradientUnits"); + if (string_equal (p, "userSpaceOnUse")) + object_bbox = FALSE; + + cairo_matrix_init_identity (&mat); + if (object_bbox) { + cairo_matrix_translate (&mat, + svg_render->graphics_state->bbox.x, + svg_render->graphics_state->bbox.y); + cairo_matrix_scale (&mat, + svg_render->graphics_state->bbox.width, + svg_render->graphics_state->bbox.height); + } + + p = get_attribute (element, "gradientTransform"); + if (parse_transform (p, &transform)) + cairo_matrix_multiply (&mat, &transform, &mat); + + if (cairo_matrix_invert (&mat) == CAIRO_STATUS_SUCCESS) + cairo_pattern_set_matrix (pattern, &mat); + + p = get_attribute (element, "spreadMethod"); + if (string_equal (p, "reflect")) + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REFLECT); + else if (string_equal (p, "repeat")) + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); +} + +static cairo_bool_t +render_element_linear_gradient (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + double x1, y1, x2, y2; + + if (svg_render->build_pattern.paint_server != element || + end_tag || + svg_render->build_pattern.type != BUILD_PATTERN_NONE) + return FALSE; + + /* FIXME default value for userSpaceOnUse? */ + double width = 1.0; + double height = 1.0; + + if (!get_float_or_percent_attribute (element, "x1", width, &x1)) + x1 = 0.0; + + if (!get_float_or_percent_attribute (element, "y1", height, &y1)) + y1 = 0.0; + + if (!get_float_or_percent_attribute (element, "x2", width, &x2)) + x2 = width; + + if (!get_float_or_percent_attribute (element, "y2", height, &y2)) + y2 = 0.0; + + if (svg_render->build_pattern.pattern) + abort(); + + svg_render->build_pattern.pattern = cairo_pattern_create_linear (x1, y1, x2, y2); + svg_render->build_pattern.type = BUILD_PATTERN_LINEAR; + apply_gradient_attributes (svg_render, element); + return TRUE; +} + +static cairo_bool_t +render_element_radial_gradient (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + double cx, cy, r, fx, fy; + + if (svg_render->build_pattern.paint_server != element || + end_tag || + svg_render->build_pattern.type != BUILD_PATTERN_NONE) + return FALSE; + + /* FIXME default value for userSpaceOnUse? */ + double width = 1.0; + double height = 1.0; + + if (!get_float_or_percent_attribute (element, "cx", width, &cx)) + cx = 0.5 * width; + + if (!get_float_or_percent_attribute (element, "cy", height, &cy)) + cy = 0.5 * height; + + if (!get_float_or_percent_attribute (element, "r", width, &r)) + r = 0.5 * width; + + if (!get_float_or_percent_attribute (element, "fx", width, &fx)) + fx = cx; + + if (!get_float_or_percent_attribute (element, "fy", height, &fy)) + fy = cy; + + svg_render->build_pattern.pattern = cairo_pattern_create_radial (fx, fy, 0, cx, cy, r); + svg_render->build_pattern.type = BUILD_PATTERN_RADIAL; + apply_gradient_attributes (svg_render, element); + return TRUE; +} + +static cairo_bool_t +render_element_stop (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + double offset, opacity; + cairo_pattern_t *pattern = svg_render->build_pattern.pattern; + + if (!pattern) + return FALSE; + + if (cairo_pattern_get_type (pattern) != CAIRO_PATTERN_TYPE_LINEAR && + cairo_pattern_get_type (pattern) != CAIRO_PATTERN_TYPE_RADIAL) + return FALSE; + + if (!get_float_or_percent_attribute (element, "offset", 1.0, &offset)) + return FALSE; + + if (!get_float_attribute (element, "stop-opacity", &opacity)) + opacity = 1.0; + + cairo_svg_color_t color; + get_color (svg_render, "black", &color); + get_color (svg_render, get_attribute(element, "stop-color"), &color); + if (color.type == RGB) { + cairo_pattern_add_color_stop_rgba (pattern, + offset, + color.red, + color.green, + color.blue, + opacity); + } else { /* color.type == FOREGROUND */ + double red, green, blue, alpha; + if (cairo_pattern_get_rgba (svg_render->foreground_source, &red, &green, &blue, &alpha) == CAIRO_STATUS_SUCCESS) { + svg_render->foreground_source_used = TRUE; + } else { + red = green = blue = 0; + alpha = 1; + } + cairo_pattern_add_color_stop_rgba (pattern, offset, red, green, blue, alpha); + } + return TRUE; +} + +static cairo_bool_t +render_element_g (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + if (svg_render->graphics_state->mode == GS_NO_RENDER || + svg_render->build_pattern.type != BUILD_PATTERN_NONE) + return FALSE; + + if (!end_tag) { + cairo_push_group (svg_render->cr); + } else { + cairo_pop_group_to_source (svg_render->cr); + cairo_paint_with_alpha (svg_render->cr, svg_render->graphics_state->opacity); + } + return TRUE; +} + +typedef struct { + const char *data; /* current position in base64 data */ + char buf[3]; /* decode buffer */ + int buf_pos; /* current position in buf_pos. */ +} base64_decode_t; + +static cairo_status_t +_read_png_from_base64 (void *closure, unsigned char *data, unsigned int length) +{ + base64_decode_t *decode = closure; + int n, c; + unsigned val; + + while (length) { + if (decode->buf_pos >= 0) { + *data++ = decode->buf[decode->buf_pos++]; + length--; + if (decode->buf_pos == 3) + decode->buf_pos = -1; + } + if (length > 0 && decode->buf_pos < 0) { + n = 0; + val = 0; + while (*decode->data && n < 4) { + c = *decode->data++; + if (c >='A' && c <='Z') { + val = (val << 6) | (c -'A'); + n++; + } else if (c >='a' && c <='z') { + val = (val << 6) | (c -'a' + 26); + n++; + } else if (c >='0' && c <='9') { + val = (val << 6) | (c -'0' + 52); + n++; + } else if (c =='+') { + val = (val << 6) | 62; + n++; + } else if (c =='/') { + val = (val << 6) | 63; + n++; + } else if (c == '=') { + val = (val << 6); + n++; + } + } + if (n < 4) + return CAIRO_STATUS_READ_ERROR; + + decode->buf[0] = val >> 16; + decode->buf[1] = val >> 8; + decode->buf[2] = val >> 0; + decode->buf_pos = 0; + } + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +render_element_image (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + double x, y, width, height; + int w, h; + const char *data; + cairo_surface_t *surface; + base64_decode_t decode; + + if (svg_render->graphics_state->mode == GS_NO_RENDER || + svg_render->build_pattern.type != BUILD_PATTERN_NONE) + return FALSE; + + if (!get_float_attribute (element, "x", &x)) + x = 0; + + if (!get_float_attribute (element, "y", &y)) + y = 0; + + if (!get_float_attribute (element, "width", &width)) + return FALSE; + + if (!get_float_attribute (element, "height", &height)) + return FALSE; + + data = get_href_attribute (element); + if (!data) + return FALSE; + + if (!string_match (&data, "data:image/png;base64,")) + return FALSE; + + decode.data = data; + decode.buf_pos = -1; + surface = cairo_image_surface_create_from_png_stream (_read_png_from_base64, &decode); + if (cairo_surface_status (surface)) { + print_warning (svg_render, "Unable to decode PNG"); + cairo_surface_destroy (surface); + return FALSE; + } + + w = cairo_image_surface_get_width (surface); + h = cairo_image_surface_get_height (surface); + + if (w > 0 && h > 0) { + cairo_translate (svg_render->cr, x, y); + cairo_scale (svg_render->cr, width/w, height/h); + cairo_set_source_surface (svg_render->cr, surface, 0, 0); + cairo_paint (svg_render->cr); + } + + cairo_surface_destroy (surface); + + return FALSE; +} + +static cairo_bool_t +render_element_use (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + double x = 0; + double y = 0; + const char *id; + + if (end_tag || svg_render->graphics_state->mode == GS_NO_RENDER || + svg_render->build_pattern.type != BUILD_PATTERN_NONE) + return FALSE; + + get_float_attribute (element, "x", &x); + get_float_attribute (element, "y", &y); + + id = get_href_attribute (element); + if (!id) + return FALSE; + + cairo_svg_element_t *use_element = lookup_element (svg_render, id); + cairo_translate (svg_render->cr, x, y); + render_element_tree (svg_render, use_element, NULL, FALSE); + return TRUE; +} + +static cairo_bool_t +draw_path (cairo_svg_glyph_render_t *svg_render) +{ + cairo_svg_graphics_state_t *gs = svg_render->graphics_state; + cairo_pattern_t *pattern; + cairo_bool_t opacity_group = FALSE; + + if (gs->mode == GS_COMPUTE_BBOX) { + cairo_set_source_rgb (svg_render->cr, 0, 0, 0); + cairo_set_fill_rule (svg_render->cr, gs->fill_rule); + cairo_fill (svg_render->cr); + return FALSE; + } else if (gs->mode == GS_CLIP) { + return FALSE; + } + + if (gs->opacity < 1.0) { + cairo_push_group (svg_render->cr); + opacity_group = TRUE; + } + + cairo_path_t *path = cairo_copy_path (svg_render->cr); + cairo_new_path (svg_render->cr); + + if (gs->fill.type != PAINT_NONE) { + cairo_bool_t group = FALSE; + if (gs->fill.type == PAINT_COLOR) { + if (gs->fill.color.type == RGB) { + cairo_set_source_rgba (svg_render->cr, + gs->fill.color.red, + gs->fill.color.green, + gs->fill.color.blue, + gs->fill_opacity); + } else if (gs->fill.color.type == FOREGROUND) { + cairo_set_source (svg_render->cr, svg_render->foreground_marker); + if (gs->fill_opacity < 1.0) + group = TRUE; + } + } else if (gs->fill.type == PAINT_SERVER) { + pattern = create_pattern (svg_render, gs->fill.paint_server); + cairo_set_source (svg_render->cr, pattern); + cairo_pattern_destroy (pattern); + if (gs->fill_opacity < 1.0) + group = TRUE; + } + + if (group) + cairo_push_group (svg_render->cr); + + cairo_append_path (svg_render->cr, path); + cairo_set_fill_rule (svg_render->cr, gs->fill_rule); + cairo_fill (svg_render->cr); + if (group) { + cairo_pop_group_to_source (svg_render->cr); + cairo_paint_with_alpha (svg_render->cr, gs->fill_opacity); + } + } + + if (gs->stroke.type != PAINT_NONE) { + cairo_bool_t group = FALSE; + if (gs->stroke.type == PAINT_COLOR) { + if (gs->stroke.color.type == RGB) { + cairo_set_source_rgba (svg_render->cr, + gs->stroke.color.red, + gs->stroke.color.green, + gs->stroke.color.blue, + gs->stroke_opacity); + } else if (gs->fill.color.type == FOREGROUND) { + cairo_set_source (svg_render->cr, svg_render->foreground_marker); + if (gs->fill_opacity < 1.0) + group = TRUE; + } + } else if (gs->stroke.type == PAINT_SERVER) { + pattern = create_pattern (svg_render, gs->stroke.paint_server); + cairo_set_source (svg_render->cr, pattern); + cairo_pattern_destroy (pattern); + if (gs->stroke_opacity < 1.0) + group = TRUE; + } + + if (group) + cairo_push_group (svg_render->cr); + + cairo_append_path (svg_render->cr, path); + cairo_stroke (svg_render->cr); + + if (group) { + cairo_pop_group_to_source (svg_render->cr); + cairo_paint_with_alpha (svg_render->cr, gs->stroke_opacity); + } + } + + cairo_path_destroy (path); + + if (opacity_group) { + cairo_pop_group_to_source (svg_render->cr); + cairo_paint_with_alpha (svg_render->cr, gs->opacity); + } + return TRUE; +} + +static void +elliptical_arc (cairo_svg_glyph_render_t *svg_render, + double cx, + double cy, + double rx, + double ry, + double angle1, + double angle2) +{ + cairo_save (svg_render->cr); + cairo_translate (svg_render->cr, cx, cy); + cairo_scale (svg_render->cr, rx, ry); + cairo_arc (svg_render->cr, 0, 0, 1, angle1, angle2); + cairo_restore (svg_render->cr); +} + +static cairo_bool_t +render_element_rect (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + double x = 0; + double y = 0; + double width = svg_render->width; + double height = svg_render->height; + double rx = 0; + double ry = 0; + + if (end_tag || + svg_render->graphics_state->mode == GS_NO_RENDER || + svg_render->build_pattern.type != BUILD_PATTERN_NONE) + return FALSE; + + get_float_or_percent_attribute (element, "x", svg_render->width, &x); + get_float_or_percent_attribute (element, "y", svg_render->height, &y); + get_float_or_percent_attribute (element, "width", svg_render->width, &width); + get_float_or_percent_attribute (element, "height", svg_render->height, &height); + get_float_or_percent_attribute (element, "rx", svg_render->width, &rx); + get_float_or_percent_attribute (element, "ry", svg_render->height, &ry); + + if (rx == 0 && ry == 0) { + cairo_rectangle (svg_render->cr, x, y, width, height); + } else { + cairo_move_to (svg_render->cr, x + rx, y); + cairo_line_to (svg_render->cr, x + width - rx, y); + elliptical_arc (svg_render, x + width - rx, y + ry, rx, ry, -M_PI/2, 0); + cairo_line_to (svg_render->cr, x + width, y + height - ry); + elliptical_arc (svg_render, x + width - rx, y + height - ry, rx, ry, 0, M_PI/2); + cairo_line_to (svg_render->cr, x + rx, y + height); + elliptical_arc (svg_render, x + rx, y + height - ry, rx, ry, M_PI/2, M_PI); + cairo_line_to (svg_render->cr, x, y + ry); + elliptical_arc (svg_render, x + rx, y + ry, rx, ry, M_PI, -M_PI/2); + } + + draw_path (svg_render); + return TRUE; +} + +static cairo_bool_t +render_element_circle (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + double cx = 0; + double cy = 0; + double r = 0; + + if (end_tag || + svg_render->graphics_state->mode == GS_NO_RENDER || + svg_render->build_pattern.type != BUILD_PATTERN_NONE) + return FALSE; + + get_float_or_percent_attribute (element, "cx", svg_render->width, &cx); + get_float_or_percent_attribute (element, "cy", svg_render->height, &cy); + get_float_or_percent_attribute (element, "r", svg_render->width, &r); + + cairo_arc (svg_render->cr, cx, cy, r, 0, 2*M_PI); + + draw_path (svg_render); + return TRUE; +} + +static cairo_bool_t +render_element_ellipse (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + double cx = 0; + double cy = 0; + double rx = 0; + double ry = 0; + + if (end_tag || + svg_render->graphics_state->mode == GS_NO_RENDER || + svg_render->build_pattern.type != BUILD_PATTERN_NONE) + return FALSE; + + get_float_or_percent_attribute (element, "cx", svg_render->width, &cx); + get_float_or_percent_attribute (element, "cy", svg_render->height, &cy); + get_float_or_percent_attribute (element, "rx", svg_render->width, &rx); + get_float_or_percent_attribute (element, "ry", svg_render->height, &ry); + + elliptical_arc (svg_render, cx, cy, rx, ry, 0, 2*M_PI); + draw_path (svg_render); + return TRUE; +} + +static cairo_bool_t +render_element_line (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + double x1 = 0; + double y1 = 0; + double x2 = 0; + double y2 = 0; + + if (end_tag || + svg_render->graphics_state->mode == GS_NO_RENDER || + svg_render->build_pattern.type != BUILD_PATTERN_NONE) + return FALSE; + + get_float_or_percent_attribute (element, "x1", svg_render->width, &x1); + get_float_or_percent_attribute (element, "y1", svg_render->height, &y1); + get_float_or_percent_attribute (element, "x2", svg_render->width, &x2); + get_float_or_percent_attribute (element, "y2", svg_render->height, &y2); + + cairo_move_to (svg_render->cr, x1, y1); + cairo_line_to (svg_render->cr, x2, y2); + + draw_path (svg_render); + return TRUE; +} + +static cairo_bool_t +render_element_polyline (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + const char *p; + const char *end; + double x, y; + cairo_bool_t have_move = FALSE; + + if (end_tag || + svg_render->graphics_state->mode == GS_NO_RENDER || + svg_render->build_pattern.type != BUILD_PATTERN_NONE) + return FALSE; + + p = get_attribute (element, "points"); + do { + end = get_path_params (p, 2, &x, &y); + if (!end) { + print_warning (svg_render, "points expected 2 numbers: %s", p); + break; + } + p = end; + if (!have_move) { + cairo_move_to (svg_render->cr, x, y); + have_move = TRUE; + } else { + cairo_line_to (svg_render->cr, x, y); + } + p = skip_space (p); + } while (p && *p); + + if (string_equal (element->tag, "polygon")) + cairo_close_path (svg_render->cr); + + draw_path (svg_render); + return TRUE; +} + +static double +angle_between_vectors (double ux, + double uy, + double vx, + double vy) +{ + double dot = ux*vx + uy*vy; + double umag = sqrt (ux*ux + uy*uy); + double vmag = sqrt (vx*vx + vy*vy); + double c = dot/(umag*vmag); + if (c > 1.0) + c = 1.0; + + if (c < -1.0) + c = -1.0; + + double a = acos (c); + if (ux * vy - uy * vx < 0.0) + a = -a; + + return a; +} + +static void +arc_path (cairo_t *cr, + double x1, double y1, + double x2, double y2, + double rx, double ry, + double rotate, + cairo_bool_t large_flag, + cairo_bool_t sweep_flag) +{ + double x1_, y1_, cx_, cy_; + double xm, ym, cx, cy; + double a, b, d; + double ux, uy, vx, vy; + double theta, delta_theta; + double epsilon; + cairo_matrix_t ctm; + + cairo_get_matrix (cr, &ctm); + epsilon = _cairo_matrix_transformed_circle_major_axis (&ctm, cairo_get_tolerance (cr)); + + rotate *= M_PI/180.0; + + /* Convert endpoint to center parameterization. + * See SVG 1.1 Appendix F.6. Step numbers are the steps in the appendix. + */ + + rx = fabs (rx); + ry = fabs (ry); + if (rx < epsilon || ry < epsilon) { + cairo_line_to (cr, x2, y2); + return; + } + + if (fabs(x1 - x2) < epsilon && fabs(y1 - y2) < epsilon) { + cairo_line_to (cr, x2, y2); + return; + } + + /* Step 1 */ + xm = (x1 - x2)/2; + ym = (y1 - y2)/2; + x1_ = xm * cos (rotate) + ym * sin (rotate); + y1_ = xm * -sin (rotate) + ym * cos (rotate); + + d = (x1_*x1_)/(rx*rx) + (y1_*y1_)/(ry*ry); + if (d > 1.0) { + d = sqrt (d); + rx *= d; + ry *= d; + } + + /* Step 2 */ + a = (rx*rx * y1_*y1_) + (ry*ry * x1_*x1_); + if (a == 0.0) + return; + + b = (rx*rx * ry*ry) / a - 1.0; + if (b < 0) + b = 0.0; + + d = sqrt(b); + if (large_flag == sweep_flag) + d = -d; + + cx_ = d * rx*y1_/ry; + cy_ = d * -ry*x1_/rx; + + /* Step 3 */ + cx = cx_ * cos (rotate) - cy_ * sin (rotate) + (x1 + x2)/2; + cy = cx_ * sin (rotate) + cy_ * cos (rotate) + (y1 + y2)/2; + + /* Step 4 */ + ux = (x1_ - cx_)/rx; + uy = (y1_ - cy_)/ry; + vx = (-x1_ - cx_)/rx; + vy = (-y1_ - cy_)/ry; + theta = angle_between_vectors (1.0, 0, ux, uy); + delta_theta = angle_between_vectors (ux, uy, vx, vy); + + if (!sweep_flag && delta_theta > 0) + delta_theta -= 2 * M_PI; + else if (sweep_flag && delta_theta < 0) + delta_theta += 2 * M_PI; + + /* Now we can call cairo_arc() */ + cairo_save (cr); + cairo_translate (cr, cx, cy); + cairo_scale (cr, rx, ry); + cairo_rotate (cr, theta); + if (delta_theta >= 0.0) + cairo_arc (cr, 0, 0, 1, 0, delta_theta); + else + cairo_arc_negative (cr, 0, 0, 1, 0, delta_theta); + cairo_restore (cr); +} + +static void +get_current_point (cairo_svg_glyph_render_t *svg_render, double *x, double *y) +{ + if (cairo_has_current_point (svg_render->cr)) { + cairo_get_current_point (svg_render->cr, x, y); + } else { + *x = 0; + *y = 0; + } +} + +static void +reflect_point (double origin_x, double origin_y, double *x, double *y) +{ + *x = 2*origin_x - *x; + *y = 2*origin_y - *y; +} + +static cairo_bool_t +render_element_path (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + double cur_x, cur_y; + double last_cp_x, last_cp_y; + double x, y, x1, y1, x2, y2; + double qx1, qy1, qx2, qy2; + double rx, ry, rotate, large_flag, sweep_flag; + cairo_bool_t rel, have_move; + enum { CUBIC, QUADRATIC, OTHER } last_op; + + if (end_tag || + svg_render->graphics_state->mode == GS_NO_RENDER || + svg_render->build_pattern.type != BUILD_PATTERN_NONE) + return FALSE; + + last_op = OTHER; + const char *p = get_attribute (element, "d"); + const char *end; + int op; + + while (p) { + while (p && _cairo_isspace (*p)) + p++; + + if (!p || *p == 0) + break; + + op = *p; + switch (op) { + case 'M': + case 'm': + rel = op == 'm'; + p++; + have_move = FALSE; + do { + end = get_path_params (p, 2, &x, &y); + if (!end) { + print_warning (svg_render, "path %c expected 2 numbers: %s", op, p); + break; + } + p = end; + if (rel) { + get_current_point (svg_render, &cur_x, &cur_y); + x += cur_x; + y += cur_y; + } + if (!have_move) { + cairo_move_to (svg_render->cr, x, y); + have_move = TRUE; + } else { + cairo_line_to (svg_render->cr, x, y); + } + p = skip_space (p); + } while (p && *p && !_cairo_isalpha(*p)); + last_op = OTHER; + break; + case 'Z': + case 'z': + p++; + cairo_close_path (svg_render->cr); + last_op = OTHER; + break; + case 'L': + case 'l': + rel = op == 'l'; + p++; + do { + end = get_path_params (p, 2, &x, &y); + if (!end) { + print_warning (svg_render, "path %c expected 2 numbers: %s", op, p); + break; + } + p = end; + if (rel) { + get_current_point (svg_render, &cur_x, &cur_y); + x += cur_x; + y += cur_y; + } + cairo_line_to (svg_render->cr, x, y); + p = skip_space (p); + } while (p && *p && !_cairo_isalpha(*p)); + last_op = OTHER; + break; + case 'H': + case 'h': + rel = op == 'h'; + p++; + do { + end = get_path_params (p, 1, &x1); + if (!end) { + print_warning (svg_render, "path %c expected a number: %s", op, p); + break; + } + p = end; + get_current_point (svg_render, &cur_x, &cur_y); + if (rel) { + x1 += cur_x; + } + cairo_line_to (svg_render->cr, x1, cur_y); + p = skip_space (p); + } while (p && *p && !_cairo_isalpha(*p)); + last_op = OTHER; + break; + case 'V': + case 'v': + rel = op == 'v'; + p++; + do { + end = get_path_params (p, 1, &y1); + if (!end) { + print_warning (svg_render, "path %c expected a number: %s", op, p); + break; + } + p = end; + get_current_point (svg_render, &cur_x, &cur_y); + if (rel) { + y1 += cur_y; + } + cairo_line_to (svg_render->cr, cur_x, y1); + p = skip_space (p); + } while (p && *p && !_cairo_isalpha(*p)); + last_op = OTHER; + break; + case 'C': + case 'c': + rel = op == 'c'; + p++; + do { + end = get_path_params (p, 6, &x1, &y1, &x2, &y2, &x, &y); + if (!end) { + print_warning (svg_render, "path %c expected 6 numbers: %s", op, p); + break; + } + p = end; + if (rel) { + get_current_point (svg_render, &cur_x, &cur_y); + x1 += cur_x; + y1 += cur_y; + x2 += cur_x; + y2 += cur_y; + x += cur_x; + y += cur_y; + } + cairo_curve_to (svg_render->cr, x1, y1, x2, y2, x, y); + p = skip_space (p); + } while (p && *p && !_cairo_isalpha(*p)); + last_op = CUBIC; + last_cp_x = x2; + last_cp_y = y2; + break; + case 'S': + case 's': + rel = op == 's'; + p++; + do { + end = get_path_params (p, 4, &x2, &y2, &x, &y); + if (!end) { + print_warning (svg_render, "path %c expected 4 numbers: %s", op, p); + break; + } + p = end; + get_current_point (svg_render, &cur_x, &cur_y); + if (rel) { + x2 += cur_x; + y2 += cur_y; + x += cur_x; + y += cur_y; + } + if (last_op == CUBIC) { + x1 = last_cp_x; + y1 = last_cp_y; + reflect_point (cur_x, cur_y, &x1, &y1); + } else { + x1 = cur_x; + y1 = cur_y; + } + cairo_curve_to (svg_render->cr, x1, y1, x2, y2, x, y); + last_op = CUBIC; + last_cp_x = x2; + last_cp_y = y2; + p = skip_space (p); + } while (p && *p && !_cairo_isalpha(*p)); + break; + case 'Q': + case 'q': + rel = op == 'q'; + p++; + do { + end = get_path_params (p, 4, &x1, &y1, &x, &y); + if (!end) { + print_warning (svg_render, "path %c expected 4 numbers: %s", op, p); + break; + } + p = end; + get_current_point (svg_render, &cur_x, &cur_y); + if (rel) { + x1 += cur_x; + y1 += cur_y; + x += cur_x; + y += cur_y; + } + qx1 = cur_x + (x1 - cur_x)*2/3; + qy1 = cur_y + (y1 - cur_y)*2/3; + qx2 = x + (x1 - x)*2/3; + qy2 = y + (y1 - y)*2/3; + cairo_curve_to (svg_render->cr, qx1, qy1, qx2, qy2, x, y); + p = skip_space (p); + } while (p && *p && !_cairo_isalpha(*p)); + last_op = QUADRATIC; + last_cp_x = x1; + last_cp_y = y1; + break; + case 'T': + case 't': + rel = op == 't'; + p++; + do { + end = get_path_params (p, 2, &x, &y); + if (!end) { + print_warning (svg_render, "path %c expected 2 numbers: %s", op, p); + break; + } + p = end; + get_current_point (svg_render, &cur_x, &cur_y); + if (rel) { + x += cur_x; + y += cur_y; + } + if (last_op == QUADRATIC) { + x1 = last_cp_x; + y1 = last_cp_y; + reflect_point (cur_x, cur_y, &x1, &y1); + } else { + x1 = cur_x; + y1 = cur_y; + } + qx1 = cur_x + (x1 - cur_x)*2/3; + qy1 = cur_y + (y1 - cur_y)*2/3; + qx2 = x + (x1 - x)*2/3; + qy2 = y + (y1 - y)*2/3; + cairo_curve_to (svg_render->cr, qx1, qy1, qx2, qy2, x, y); + last_op = QUADRATIC; + last_cp_x = x1; + last_cp_y = y1; + p = skip_space (p); + } while (p && *p && *p && !_cairo_isalpha(*p)); + break; + case 'A': + case 'a': + rel = op == 'a'; + p++; + do { + end = get_path_params (p, 7, &rx, &ry, &rotate, &large_flag, &sweep_flag, &x, &y); + if (!end) { + print_warning (svg_render, "path %c expected 7 numbers: %s", op, p); + break; + } + p = end; + get_current_point (svg_render, &cur_x, &cur_y); + if (rel) { + x += cur_x; + y += cur_y; + } + arc_path (svg_render->cr, + cur_x, cur_y, + x, y, + rx, ry, + rotate, + large_flag > 0.5, + sweep_flag > 0.5); + p = skip_space (p); + } while (p && *p && !_cairo_isalpha(*p)); + last_op = OTHER; + break; + default: + p = NULL; + break; + } + } + + draw_path (svg_render); + return TRUE; +} + +static void +init_graphics_state (cairo_svg_glyph_render_t *svg_render) +{ + cairo_svg_graphics_state_t *gs; + + gs = _cairo_calloc (sizeof (cairo_svg_graphics_state_t)); + get_paint (svg_render, "black", &gs->fill); + get_paint (svg_render, "none", &gs->stroke); + gs->color.type = FOREGROUND; + gs->fill_opacity = 1.0; + gs->stroke_opacity = 1.0; + gs->opacity = 1.0; + gs->fill_rule = CAIRO_FILL_RULE_WINDING; + gs->clip_rule = CAIRO_FILL_RULE_WINDING; + gs->clip_path = NULL; + gs->dash_array = NULL; + gs->dash_offset = 0.0; + gs->mode = GS_RENDER; + gs->bbox.x = 0; + gs->bbox.y = 0; + gs->bbox.width = 0; + gs->bbox.height = 0; + gs->next = NULL; + + svg_render->graphics_state = gs; + + cairo_save (svg_render->cr); + cairo_set_source_rgb (svg_render->cr, 0, 0, 0); + cairo_set_line_width (svg_render->cr, 1.0); + cairo_set_line_cap (svg_render->cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_join (svg_render->cr, CAIRO_LINE_JOIN_MITER); + cairo_set_miter_limit (svg_render->cr, 4.0); +} + +#define MAX_DASHES 100 +static void update_dash (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element) +{ + cairo_svg_graphics_state_t *gs = svg_render->graphics_state; + const char *p; + char *end; + double value; + double dash_array[MAX_DASHES]; + int num_dashes = 0; + cairo_bool_t not_zero = FALSE; + + if (gs->dash_array == NULL || string_equal (gs->dash_array, "none")) { + cairo_set_dash (svg_render->cr, NULL, 0, 0); + return; + } + + p = gs->dash_array; + while (*p && num_dashes < MAX_DASHES) { + while (*p && (*p == ',' || _cairo_isspace (*p))) + p++; + + if (*p == 0) + break; + + value = _cairo_strtod (p, &end); + if (end == p) + break; + + p = end; + if (*p == '%') { + value *= svg_render->width / 100.0; + p++; + } + + if (value < 0.0) + return; + + if (value > 0.0) + not_zero = TRUE; + + dash_array[num_dashes++] = value; + } + + if (not_zero) + cairo_set_dash (svg_render->cr, dash_array, num_dashes, gs->dash_offset); +} + +static cairo_bool_t +pattern_requires_bbox (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *paint_server) +{ + const char *p; + + if (string_equal (paint_server->tag, "linearGradient") || + string_equal (paint_server->tag, "radialGradient")) + { + p = get_attribute (paint_server, "gradientUnits"); + if (string_equal (p, "userSpaceOnUse")) + return FALSE; + + return TRUE; + } + return FALSE; +} + +static cairo_bool_t +clip_requires_bbox (cairo_svg_glyph_render_t *svg_render, + const char *clip_path) +{ + cairo_svg_element_t *element; + const char *p; + + if (clip_path && strncmp (clip_path, "url", 3) == 0) { + element = lookup_url_element (svg_render, clip_path); + if (element) { + p = get_attribute (element, "clipPathUnits"); + if (string_equal (p, "objectBoundingBox")) + return TRUE; + } + } + return FALSE; +} + +static cairo_bool_t +need_bbox (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element) +{ + cairo_svg_graphics_state_t *gs = svg_render->graphics_state; + cairo_bool_t fill_needs_bbox = FALSE; + cairo_bool_t stroke_needs_bbox = FALSE; + cairo_bool_t clip_needs_bbox = FALSE; + + if (gs->mode != GS_RENDER) + return FALSE; + + if (gs->fill.type == PAINT_SERVER && pattern_requires_bbox (svg_render, gs->fill.paint_server)) + fill_needs_bbox = TRUE; + + if (gs->stroke.type == PAINT_SERVER && pattern_requires_bbox (svg_render, gs->stroke.paint_server)) + stroke_needs_bbox = TRUE; + + if (clip_requires_bbox (svg_render, get_attribute (element, "clip-path"))) + clip_needs_bbox = TRUE; + + if (string_equal (element->tag, "circle") || + string_equal (element->tag, "ellipse") || + string_equal (element->tag, "path") || + string_equal (element->tag, "polygon") || + string_equal (element->tag, "rect")) + { + return fill_needs_bbox || stroke_needs_bbox || clip_needs_bbox; + } + + if (string_equal (element->tag, "line") || + string_equal (element->tag, "polyline")) + { + return stroke_needs_bbox || clip_needs_bbox; + } + + if (string_equal (element->tag, "g") || + string_equal (element->tag, "image") || + string_equal (element->tag, "use")) + { + return clip_needs_bbox; + } + + return FALSE; +} + +static cairo_bool_t +call_element (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag); + +static void +update_graphics_state (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element) +{ + double value; + const char *p; + cairo_svg_graphics_state_t *gs = svg_render->graphics_state; + + p = get_attribute (element, "transform"); + if (p) { + cairo_matrix_t m; + if (parse_transform (p, &m)) + cairo_transform (svg_render->cr, &m); + } + + /* The transform is all we need for bbox computation. The SVG spec + * excludes clipping and stroke-width from the bbox. */ + if (gs->mode == GS_COMPUTE_BBOX) + return; + + p = get_attribute (element, "color"); + if (p) + get_color (svg_render, p, &gs->color); + + if (!get_float_attribute (element, "opacity", &gs->opacity)) + gs->opacity = 1.0; + + p = get_attribute (element, "fill"); + if (p) { + get_paint (svg_render, p, &gs->fill); + } + + get_float_attribute (element, "fill-opacity", &gs->fill_opacity); + + gs->fill_rule = get_fill_rule_attribute (element, "fill-rule", gs->fill_rule); + + gs->clip_rule = get_fill_rule_attribute (element, "fill-rule", gs->clip_rule); + + p = get_attribute (element, "stroke"); + if (p) + get_paint (svg_render, p, &gs->stroke); + + if (get_float_or_percent_attribute (element, "stroke-width", svg_render->width, &value)) + cairo_set_line_width (svg_render->cr, value); + + p = get_attribute (element, "stroke-linecap"); + if (string_equal (p, "butt")) + cairo_set_line_cap (svg_render->cr, CAIRO_LINE_CAP_BUTT); + else if (string_equal (p, "round")) + cairo_set_line_cap (svg_render->cr, CAIRO_LINE_CAP_ROUND); + else if (string_equal (p, "square")) + cairo_set_line_cap (svg_render->cr, CAIRO_LINE_CAP_SQUARE); + + p = get_attribute (element, "stroke-linejoin"); + if (string_equal (p, "miter")) + cairo_set_line_join (svg_render->cr, CAIRO_LINE_JOIN_MITER); + else if (string_equal (p, "round")) + cairo_set_line_join (svg_render->cr, CAIRO_LINE_JOIN_ROUND); + else if (string_equal (p, "bevel")) + cairo_set_line_join (svg_render->cr, CAIRO_LINE_JOIN_BEVEL); + + if (get_float_attribute (element, "stroke-miterlimit", &value)) + cairo_set_miter_limit (svg_render->cr, value); + + p = get_attribute (element, "stroke-dasharray"); + if (p) { + free (gs->dash_array); + gs->dash_array = strdup (p); + } + + get_float_or_percent_attribute (element, "stroke-dashoffset", svg_render->width, &gs->dash_offset); + update_dash (svg_render, element); + + /* Some elements may need the bounding box of the element thay are + * applied to. As this recursively calls render_element on the + * same element while we are in render_element and setting up the + * graphics state, we check gs->mode to avoid re-entering the + * compute bbox code. The GS_COMPUTE_MODE flag is also used by + * render functions to ignore patterns and strokes (SVG spec + * ignores stroke with in bbox calculations) and just use a solid + * color. + */ + if (gs->mode == GS_RENDER && need_bbox (svg_render, element)) { + cairo_surface_t *recording = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + cairo_t *old_cr = svg_render->cr; + svg_render->cr = cairo_create (recording); + gs_mode_t old_mode = gs->mode; + gs->mode = GS_COMPUTE_BBOX; + /* To avoid recursing back into this function, we call the + * element directory then use render_element_tree to render + * the children */ + call_element (svg_render, element, FALSE); + render_element_tree (svg_render, element, NULL, TRUE); + if (element->type == CONTAINER_ELEMENT) + call_element (svg_render, element, TRUE); + gs->mode = old_mode; + cairo_destroy (svg_render->cr); + svg_render->cr = old_cr; + cairo_recording_surface_ink_extents (recording, + &gs->bbox.x, + &gs->bbox.y, + &gs->bbox.width, + &gs->bbox.height); + cairo_surface_destroy (recording); + } + + /* clip-path may require bbox */ + p = get_attribute (element, "clip-path"); + if (p && strncmp (p, "url", 3) == 0) { + element = lookup_url_element (svg_render, p); + if (element) { + gs_mode_t old_mode = gs->mode; + gs->mode = GS_CLIP; + render_element_tree (svg_render, element, NULL, FALSE); + cairo_set_fill_rule (svg_render->cr, gs->clip_rule); + cairo_clip (svg_render->cr); + gs->mode = old_mode; + } + } +} + +static void +save_graphics_state (cairo_svg_glyph_render_t *svg_render) +{ + cairo_svg_graphics_state_t *gs; + + cairo_save (svg_render->cr); + + gs = _cairo_calloc (sizeof (cairo_svg_graphics_state_t)); + gs->fill = svg_render->graphics_state->fill; + gs->stroke = svg_render->graphics_state->stroke; + gs->color = svg_render->graphics_state->color; + gs->fill_opacity = svg_render->graphics_state->fill_opacity; + gs->stroke_opacity = svg_render->graphics_state->stroke_opacity; + gs->opacity = svg_render->graphics_state->opacity; + gs->fill_rule = svg_render->graphics_state->fill_rule; + gs->clip_rule = svg_render->graphics_state->clip_rule; + gs->clip_path = NULL; + gs->dash_array = NULL; + if (svg_render->graphics_state->dash_array) + gs->dash_array = strdup (svg_render->graphics_state->dash_array); + gs->dash_offset = svg_render->graphics_state->dash_offset; + gs->mode = svg_render->graphics_state->mode; + gs->bbox = svg_render->graphics_state->bbox; + gs->next = svg_render->graphics_state; + svg_render->graphics_state = gs; +} + +static void +restore_graphics_state (cairo_svg_glyph_render_t *svg_render) +{ + cairo_svg_graphics_state_t *gs; + + gs = svg_render->graphics_state; + svg_render->graphics_state = gs->next; + if (gs->clip_path) + cairo_path_destroy (gs->clip_path); + free (gs->dash_array); + free (gs); + + cairo_restore (svg_render->cr); +} + +/* render function returns TRUE if render_element_tree() is to render + * the child nodes, FALSE if render_element_tree() is to skip the + * child nodes. + */ +struct render_func { + const char *tag; + cairo_bool_t (*render) (cairo_svg_glyph_render_t *, cairo_svg_element_t *, cairo_bool_t); +}; + +/* Must be sorted */ +static const struct render_func render_funcs[] = { + { "circle", render_element_circle }, + { "clipPath", render_element_clip_path }, + { "defs", NULL }, + { "desc", NULL }, + { "ellipse", render_element_ellipse }, + { "g", render_element_g }, + { "image", render_element_image }, + { "line", render_element_line }, + { "linearGradient", render_element_linear_gradient }, + { "metadata", NULL }, + { "path", render_element_path }, + { "polygon", render_element_polyline }, + { "polyline", render_element_polyline }, + { "radialGradient", render_element_radial_gradient }, + { "rect", render_element_rect }, + { "stop", render_element_stop }, + { "svg", render_element_svg }, + { "title", NULL }, + { "use", render_element_use }, +}; + +static int +_render_func_compare (const void *a, const void *b) +{ + const struct render_func *render_func_a = a; + const struct render_func *render_func_b = b; + + return strcmp (render_func_a->tag, render_func_b->tag); +} + +static cairo_bool_t +call_element (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag) +{ + const struct render_func *func; + struct render_func key; + cairo_bool_t recurse = FALSE; + + key.tag = element->tag; + key.render = NULL; + func = bsearch (&key, + render_funcs, + ARRAY_LENGTH (render_funcs), + sizeof (struct render_func), + _render_func_compare); + if (func) { + if (func->render) { + recurse = func->render (svg_render, element, end_tag); + } + } else { + print_warning (svg_render, "Unsupported element: %s", element->tag); + } + + return recurse; +} + +static cairo_bool_t +render_element (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_bool_t end_tag, + cairo_svg_element_t *display_element) +{ + cairo_bool_t recurse = FALSE; + cairo_svg_graphics_state_t *gs; + + /* Ignore elements if we have not seen "". Ignore + * "" if we have seen it */ + if (svg_render->view_port_set) { + if (string_equal (element->tag, "svg")) + return FALSE; + } else { + if (!string_equal (element->tag, "svg")) + return FALSE; + } + + if (element->type == EMPTY_ELEMENT || + (element->type == CONTAINER_ELEMENT && !end_tag)) + { + save_graphics_state (svg_render); + update_graphics_state (svg_render, element); + } + + gs = svg_render->graphics_state; + if (gs->mode == GS_NO_RENDER && element == display_element) + gs->mode = GS_RENDER; + + recurse = call_element (svg_render, element, end_tag); + + if (element->type == EMPTY_ELEMENT || + (element->type == CONTAINER_ELEMENT && end_tag)) + { + restore_graphics_state (svg_render); + } + + return recurse; +} + +#define MAX_DEPTH 100 + +static void +render_element_tree (cairo_svg_glyph_render_t *svg_render, + cairo_svg_element_t *element, + cairo_svg_element_t *display_element, + cairo_bool_t children_only) +{ + if (!element) + return; + + /* Avoid circular references by limiting the number of recursive + * calls to this function. */ + if (svg_render->render_element_tree_depth > MAX_DEPTH) + return; + + svg_render->render_element_tree_depth++; + if (element->type == EMPTY_ELEMENT && !children_only) { + render_element (svg_render, element, FALSE, display_element); + + } else if (element->type == CONTAINER_ELEMENT) { + int num_elems; + cairo_bool_t recurse = TRUE;; + + if (!children_only) + recurse = render_element (svg_render, element, FALSE, display_element); + + /* We only render the children if the parent returned + * success. This is how we avoid rendering non display + * elements like gradients, , and anything not + * implemented. */ + if (recurse) { + num_elems = _cairo_array_num_elements (&element->children); + for (int i = 0; i < num_elems; i++) { + cairo_svg_element_t *child; + _cairo_array_copy_element (&element->children, i, &child); + render_element_tree (svg_render, child, display_element, FALSE); + } + } + + if (!children_only) + render_element (svg_render, element, TRUE, display_element); + } + svg_render->render_element_tree_depth--; +} + +static void +render_element_tree_id (cairo_svg_glyph_render_t *svg_render, + const char *element_id) +{ + cairo_svg_element_t *glyph_element = NULL; + + if (element_id) + glyph_element = lookup_element (svg_render, element_id); + + if (glyph_element) + svg_render->graphics_state->mode = GS_NO_RENDER; + else + svg_render->graphics_state->mode = GS_RENDER; + + render_element_tree (svg_render, svg_render->tree, glyph_element, TRUE); +} + +cairo_status_t +_cairo_render_svg_glyph (const char *svg_document, + unsigned long first_glyph, + unsigned long last_glyph, + unsigned long glyph, + double units_per_em, + FT_Color *palette, + int num_palette_entries, + cairo_t *cr, + cairo_pattern_t *foreground_source, + cairo_bool_t *foreground_source_used) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + cairo_svg_glyph_render_t *svg_render = _cairo_calloc (sizeof (cairo_svg_glyph_render_t)); + if (unlikely (svg_render == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + svg_render->tree = NULL; + svg_render->ids = _cairo_hash_table_create (_element_id_equal); + if (unlikely (svg_render->ids == NULL)) { + free (svg_render); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + svg_render->debug = 0; + const char *s = getenv ("CAIRO_DEBUG_SVG_RENDER"); + if (s) { + if (strlen (s) > 0) + svg_render->debug = atoi (s); + else + svg_render->debug = SVG_RENDER_ERROR; + } + + svg_render->cr = cr; + svg_render->units_per_em = units_per_em; + svg_render->build_pattern.paint_server = NULL; + svg_render->build_pattern.pattern = NULL; + svg_render->build_pattern.type = BUILD_PATTERN_NONE; + svg_render->render_element_tree_depth = 0; + svg_render->view_port_set = FALSE; + svg_render->num_palette_entries = num_palette_entries; + svg_render->palette = palette; + + svg_render->foreground_marker = _cairo_pattern_create_foreground_marker (); + svg_render->foreground_source = cairo_pattern_reference (foreground_source);; + svg_render->foreground_source_used = FALSE; + + init_graphics_state (svg_render); + + print_info (svg_render, "Glyph ID: %ld", glyph); + print_info (svg_render, "Palette Entries: %d", num_palette_entries); + print_info (svg_render, "Units per EM: %f", units_per_em); + print_info (svg_render, "SVG Document:\n%s\n", svg_document); + + /* First parse elements into a tree and populate ids hash table */ + if (!parse_svg (svg_render, svg_document)) { + print_error (svg_render, "Parse SVG document failed"); + status = CAIRO_STATUS_SVG_FONT_ERROR; + goto cleanup; + } + +#if SVG_RENDER_PRINT_FUNCTIONS + printf("\nTREE\n"); + if (svg_render->tree) { + print_element (svg_render->tree, TRUE, 0); + printf("\n"); + } +#endif + + /* Next, render glyph */ + if (first_glyph == last_glyph) { + /* Render whole document */ + render_element_tree_id (svg_render, NULL); + } else { + /* Render element with id "glyphID" where ID is glyph number. */ + + char glyph_id[30]; + snprintf(glyph_id, sizeof(glyph_id), "#glyph%ld", glyph); + render_element_tree_id (svg_render, glyph_id); + } + + cleanup: + if (svg_render->build_pattern.pattern) + cairo_pattern_destroy (svg_render->build_pattern.pattern); + + if (svg_render->tree) + free_elements (svg_render, svg_render->tree); + + while (svg_render->graphics_state) + restore_graphics_state (svg_render); + + cairo_pattern_destroy (svg_render->foreground_marker); + cairo_pattern_destroy (svg_render->foreground_source); + *foreground_source_used = svg_render->foreground_source_used; + + /* The hash entry for each element with an id is removed by + * free_elements() */ + _cairo_hash_table_destroy (svg_render->ids); + + free (svg_render); + + return status; +} + +#ifdef DEBUG_SVG_RENDER + +/** + * _cairo_debug_svg_render: + * + * Debug function for cairo-svg-glyph-render.c. Allows invoking the renderer from outside + * cairo to test with SVG documents, and to facilitate comparison with librsvg rendering. + * The viewport is . + * + * @cr: render target + * @svg_document: SVG Document + * @element: element within svg_document to render (eg "#glyph8"), or NULL to render entire document. + * @debug_level: 0 - quiet, 1 - print errors, 2 - print warnings, 3 - info + * @return TRUE on success, ie no errors, FALSE if error + **/ +cairo_public cairo_bool_t +_cairo_debug_svg_render (cairo_t *cr, + const char *svg_document, + const char *element, + double units_per_em, + int debug_level); + +cairo_bool_t +_cairo_debug_svg_render (cairo_t *cr, + const char *svg_document, + const char *element, + double units_per_em, + int debug_level) +{ + cairo_status_t status; + cairo_bool_t foreground_source_used; + cairo_pattern_t *foreground = _cairo_pattern_create_foreground_marker (); + + status = _cairo_render_svg_glyph (svg_document, + 1, 1, 1, + units_per_em, + NULL, 0, + cr, + foreground, + &foreground_source_used); + cairo_pattern_destroy (foreground); + + return status == CAIRO_STATUS_SUCCESS; +} + +#endif /* DEBUG_SVG_RENDER */ + +#endif /* HAVE_FT_SVG_DOCUMENT */ diff --git a/local/recipes/libs/cairo/source/src/cairo-svg-surface-private.h b/local/recipes/libs/cairo/source/src/cairo-svg-surface-private.h new file mode 100644 index 0000000000..e2a194081b --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-svg-surface-private.h @@ -0,0 +1,63 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 Red Hat, Inc + * Copyright © 2005-2006 Emmanuel Pacaud + * Copyright © 2006 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Kristian Høgsberg + * Emmanuel Pacaud + * Carl Worth + */ + +#ifndef CAIRO_SVG_SURFACE_PRIVATE_H +#define CAIRO_SVG_SURFACE_PRIVATE_H + +#include "cairo-svg.h" + +#include "cairo-surface-private.h" + +struct _cairo_svg_surface_start { + cairo_surface_t base; + + cairo_bool_t force_fallbacks; +}; + +static inline void +_cairo_svg_surface_set_force_fallbacks (void *abstract_surface, + cairo_bool_t force_fallbacks) +{ + struct _cairo_svg_surface_start *surface = (struct _cairo_svg_surface_start *) abstract_surface; + + surface->force_fallbacks = force_fallbacks; +} + +#endif /* CAIRO_SVG_SURFACE_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-svg-surface.c b/local/recipes/libs/cairo/source/src/cairo-svg-surface.c new file mode 100644 index 0000000000..249f46f531 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-svg-surface.c @@ -0,0 +1,4421 @@ +/* vim: set sw=4 sts=4: -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 Red Hat, Inc + * Copyright © 2005-2007 Emmanuel Pacaud + * Copyright © 2006 Red Hat, Inc + * Copyright © 2020-2021 Anton Danilkin + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Kristian Høgsberg + * Emmanuel Pacaud + * Carl Worth + * Anton Danilkin + */ + +#include "cairoint.h" + +#include "cairo-svg.h" + +#include "cairo-array-private.h" +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-image-info-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-recording-surface-inline.h" +#include "cairo-output-stream-private.h" +#include "cairo-paginated-private.h" +#include "cairo-scaled-font-subsets-private.h" +#include "cairo-surface-clipper-private.h" +#include "cairo-surface-snapshot-inline.h" +#include "cairo-svg-surface-private.h" + +/** + * SECTION:cairo-svg + * @Title: SVG Surfaces + * @Short_Description: Rendering SVG documents + * @See_Also: #cairo_surface_t + * + * The SVG surface is used to render cairo graphics to + * SVG files and is a multi-page vector surface backend. + **/ + +typedef struct _cairo_svg_source_surface { + cairo_hash_entry_t base; + unsigned int id; + unsigned char *unique_id; + unsigned long unique_id_length; + cairo_bool_t transitive_paint_used; +} cairo_svg_source_surface_t; + +/* + * _cairo_svg_paint_element and _cairo_svg_paint are used to implement paints in transformed recording patterns. + */ + +typedef struct _cairo_svg_paint_element { + unsigned int source_id; + cairo_matrix_t matrix; +} cairo_svg_paint_element_t; + +typedef struct _cairo_svg_paint { + cairo_hash_entry_t base; + unsigned int source_id; + cairo_array_t paint_elements; + cairo_box_double_t box; +} cairo_svg_paint_t; + +static void +_cairo_svg_source_surface_init_key (cairo_svg_source_surface_t *source_surface) +{ + if (source_surface->unique_id && source_surface->unique_id_length > 0) { + source_surface->base.hash = _cairo_hash_bytes (_CAIRO_HASH_INIT_VALUE, + source_surface->unique_id, + source_surface->unique_id_length); + } else { + source_surface->base.hash = source_surface->id; + } +} + +static cairo_bool_t +_cairo_svg_source_surface_equal (const void *key_a, const void *key_b) +{ + const cairo_svg_source_surface_t *a = key_a; + const cairo_svg_source_surface_t *b = key_b; + + if (a->unique_id && b->unique_id && a->unique_id_length == b->unique_id_length) { + return memcmp (a->unique_id, b->unique_id, a->unique_id_length) == 0; + } + + return a->id == b->id; +} + +static void +_cairo_svg_source_surface_pluck (void *entry, void *closure) +{ + cairo_svg_source_surface_t *source_surface = entry; + cairo_hash_table_t *patterns = closure; + + _cairo_hash_table_remove (patterns, &source_surface->base); + free (source_surface->unique_id); + free (source_surface); +} + +static void +_cairo_svg_paint_init_key (cairo_svg_paint_t *paint) +{ + paint->base.hash = paint->source_id; +} + +static cairo_bool_t +_cairo_svg_paint_equal (const void *key_a, const void *key_b) +{ + const cairo_svg_paint_t *a = key_a; + const cairo_svg_paint_t *b = key_b; + + return a->source_id == b->source_id; +} + +static void +_cairo_svg_paint_pluck (void *entry, void *closure) +{ + cairo_svg_paint_t *paint = entry; + cairo_hash_table_t *patterns = closure; + + _cairo_hash_table_remove (patterns, &paint->base); + _cairo_array_fini (&paint->paint_elements); + free (paint); +} + +static void +_cairo_svg_paint_box_add_padding (cairo_box_double_t *box) +{ + double width = box->p2.x - box->p1.x; + double height = box->p2.y - box->p1.y; + + box->p1.x -= width / 10.0; + box->p1.y -= height / 10.0; + box->p2.x += width / 10.0; + box->p2.y += height / 10.0; +} + +enum cairo_svg_stream_element_type { + CAIRO_SVG_STREAM_ELEMENT_TYPE_TEXT, + CAIRO_SVG_STREAM_ELEMENT_TYPE_PAINT_DEPENDENT, +}; + +enum cairo_svg_stream_paint_dependent_element_type { + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_RECTANGLE, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_RECTANGLE_AT_ORIGIN, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_TRANSLATION, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_INVERSE_TRANSLATION, +}; + +typedef struct _cairo_svg_stream_element { + enum cairo_svg_stream_element_type type; + union { + struct { + cairo_output_stream_t *output_stream; + } text; + struct { + unsigned int source_id; + enum cairo_svg_stream_paint_dependent_element_type type; + } paint_dependent; + }; +} cairo_svg_stream_element_t; + +typedef struct _cairo_svg_stream { + cairo_status_t status; + cairo_array_t elements; +} cairo_svg_stream_t; + +static cairo_svg_stream_t +_cairo_svg_stream_create () +{ + cairo_svg_stream_t svg_stream; + svg_stream.status = CAIRO_STATUS_SUCCESS; + _cairo_array_init (&svg_stream.elements, sizeof (cairo_svg_stream_element_t)); + return svg_stream; +} + +static void +_cairo_svg_stream_write (cairo_svg_stream_t *svg_stream, + const void *data, + size_t length) +{ + cairo_status_t status; + + cairo_svg_stream_element_t *last_element = NULL; + if (svg_stream->elements.num_elements > 0) { + last_element = _cairo_array_index (&svg_stream->elements, + svg_stream->elements.num_elements - 1); + } + + if (last_element == NULL || last_element->type != CAIRO_SVG_STREAM_ELEMENT_TYPE_TEXT) { + cairo_svg_stream_element_t element; + element.type = CAIRO_SVG_STREAM_ELEMENT_TYPE_TEXT; + element.text.output_stream = _cairo_memory_stream_create(); + status = _cairo_array_append (&svg_stream->elements, &element); + if (unlikely (status)) { + if (svg_stream->status == CAIRO_STATUS_SUCCESS) { + svg_stream->status = status; + } + return; + } + last_element = _cairo_array_index (&svg_stream->elements, + svg_stream->elements.num_elements - 1); + } + + _cairo_output_stream_write (last_element->text.output_stream, data, length); +} + +static void CAIRO_PRINTF_FORMAT (2, 0) +_cairo_svg_stream_printf (cairo_svg_stream_t *svg_stream, + const char *fmt, + ...) +{ + cairo_status_t status; + + cairo_svg_stream_element_t *last_element = NULL; + if (svg_stream->elements.num_elements > 0) { + last_element = _cairo_array_index (&svg_stream->elements, + svg_stream->elements.num_elements - 1); + } + + if (last_element == NULL || last_element->type != CAIRO_SVG_STREAM_ELEMENT_TYPE_TEXT) { + cairo_svg_stream_element_t element; + element.type = CAIRO_SVG_STREAM_ELEMENT_TYPE_TEXT; + element.text.output_stream = _cairo_memory_stream_create(); + status = _cairo_array_append (&svg_stream->elements, &element); + if (unlikely (status)) { + if (svg_stream->status == CAIRO_STATUS_SUCCESS) { + svg_stream->status = status; + } + return; + } + last_element = _cairo_array_index (&svg_stream->elements, + svg_stream->elements.num_elements - 1); + } + + va_list ap; + va_start (ap, fmt); + _cairo_output_stream_vprintf (last_element->text.output_stream, fmt, ap); + va_end (ap); +} + +static void +_cairo_svg_stream_append_paint_dependent (cairo_svg_stream_t *svg_stream, + unsigned int source_id, + enum cairo_svg_stream_paint_dependent_element_type type) +{ + cairo_status_t status; + + cairo_svg_stream_element_t element; + element.type = CAIRO_SVG_STREAM_ELEMENT_TYPE_PAINT_DEPENDENT; + element.paint_dependent.source_id = source_id; + element.paint_dependent.type = type; + status = _cairo_array_append (&svg_stream->elements, &element); + if (svg_stream->status == CAIRO_STATUS_SUCCESS) { + svg_stream->status = status; + } +} + +static void +_cairo_svg_stream_copy (cairo_svg_stream_t *from, + cairo_svg_stream_t *to) +{ + cairo_status_t status; + + if (unlikely (from->status)) { + if (to->status == CAIRO_STATUS_SUCCESS) { + to->status = from->status; + } + return; + } + + for (unsigned int i = 0; i < from->elements.num_elements; i++) { + cairo_svg_stream_element_t *element = _cairo_array_index (&from->elements, i); + cairo_svg_stream_element_t element_copy = *element; + if (element->type == CAIRO_SVG_STREAM_ELEMENT_TYPE_TEXT) { + element_copy.text.output_stream = _cairo_memory_stream_create (); + _cairo_memory_stream_copy (element->text.output_stream, element_copy.text.output_stream); + if (to->status == CAIRO_STATUS_SUCCESS) { + to->status = element->text.output_stream->status; + } + } + status = _cairo_array_append (&to->elements, &element_copy); + if (unlikely (status)) { + if (to->status == CAIRO_STATUS_SUCCESS) { + to->status = status; + } + return; + } + } +} + +static void +_cairo_svg_stream_copy_to_output_stream (cairo_svg_stream_t *from, + cairo_output_stream_t *to, + cairo_hash_table_t *paints) +{ + if (unlikely (from->status)) { + if (to->status == CAIRO_STATUS_SUCCESS) { + to->status = from->status; + } + return; + } + + for (unsigned int i = 0; i < from->elements.num_elements; i++) { + cairo_svg_stream_element_t *element = _cairo_array_index (&from->elements, i); + if (element->type == CAIRO_SVG_STREAM_ELEMENT_TYPE_TEXT) { + _cairo_memory_stream_copy (element->text.output_stream, to); + } + if (element->type == CAIRO_SVG_STREAM_ELEMENT_TYPE_PAINT_DEPENDENT) { + cairo_svg_paint_t paint_key; + paint_key.source_id = element->paint_dependent.source_id; + _cairo_svg_paint_init_key (&paint_key); + + cairo_svg_paint_t *found_paint_entry = _cairo_hash_table_lookup (paints, + &paint_key.base); + assert (found_paint_entry); + + switch (element->paint_dependent.type) { + case CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_RECTANGLE: + _cairo_output_stream_printf (to, + " x=\"%f\" y=\"%f\" width=\"%f\" height=\"%f\"", + found_paint_entry->box.p1.x, + found_paint_entry->box.p1.y, + found_paint_entry->box.p2.x - found_paint_entry->box.p1.x, + found_paint_entry->box.p2.y - found_paint_entry->box.p1.y); + break; + case CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_RECTANGLE_AT_ORIGIN: + _cairo_output_stream_printf (to, + " x=\"0\" y=\"0\" width=\"%f\" height=\"%f\"", + found_paint_entry->box.p2.x - found_paint_entry->box.p1.x, + found_paint_entry->box.p2.y - found_paint_entry->box.p1.y); + break; + case CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_TRANSLATION: + _cairo_output_stream_printf (to, + " transform=\"translate(%f, %f)\"", + found_paint_entry->box.p1.x, + found_paint_entry->box.p1.y); + break; + case CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_INVERSE_TRANSLATION: + _cairo_output_stream_printf (to, + " transform=\"translate(%f, %f)\"", + -found_paint_entry->box.p1.x, + -found_paint_entry->box.p1.y); + break; + } + } + } +} + +static cairo_status_t +_cairo_svg_stream_destroy (cairo_svg_stream_t *svg_stream) +{ + cairo_status_t status = svg_stream->status; + for (unsigned int i = 0; i < svg_stream->elements.num_elements; i++) { + cairo_svg_stream_element_t *element = _cairo_array_index (&svg_stream->elements, i); + if (element->type == CAIRO_SVG_STREAM_ELEMENT_TYPE_TEXT) { + cairo_status_t element_status = _cairo_output_stream_destroy (element->text.output_stream); + if (status == CAIRO_STATUS_SUCCESS) { + status = element_status; + } + } + } + _cairo_array_fini (&svg_stream->elements); + return status; +} + +/** + * CAIRO_HAS_SVG_SURFACE: + * + * Defined if the SVG surface backend is available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.2 + **/ + +static const unsigned int invalid_pattern_id = -1; + +static const cairo_svg_version_t _cairo_svg_versions[] = +{ + CAIRO_SVG_VERSION_1_1, + CAIRO_SVG_VERSION_1_2 +}; + +#define CAIRO_SVG_VERSION_LAST ARRAY_LENGTH (_cairo_svg_versions) + +static const char *_cairo_svg_supported_mime_types[] = +{ + CAIRO_MIME_TYPE_JPEG, + CAIRO_MIME_TYPE_PNG, + CAIRO_MIME_TYPE_UNIQUE_ID, + CAIRO_MIME_TYPE_URI, + NULL +}; + +static void +_cairo_svg_surface_emit_path (cairo_svg_stream_t *output, + const cairo_path_fixed_t *path, + const cairo_matrix_t *ctm_inverse); + +static const char * _cairo_svg_version_strings[CAIRO_SVG_VERSION_LAST] = +{ + "SVG 1.1", + "SVG 1.2" +}; + +static const char * _cairo_svg_unit_strings[] = +{ + "", + "em", + "ex", + "px", + "in", + "cm", + "mm", + "pt", + "pc", + "%" +}; + +enum cairo_svg_filter { + CAIRO_SVG_FILTER_REMOVE_COLOR, + CAIRO_SVG_FILTER_REMOVE_COLOR_AND_INVERT_ALPHA, + CAIRO_SVG_FILTER_COLOR_TO_ALPHA, + CAIRO_SVG_FILTER_LAST_STATIC_FILTER, + CAIRO_SVG_FILTER_OVER, + CAIRO_SVG_FILTER_IN, + CAIRO_SVG_FILTER_OUT, + CAIRO_SVG_FILTER_ATOP, + CAIRO_SVG_FILTER_XOR, + CAIRO_SVG_FILTER_ADD, + CAIRO_SVG_FILTER_MULTIPLY, + CAIRO_SVG_FILTER_SCREEN, + CAIRO_SVG_FILTER_OVERLAY, + CAIRO_SVG_FILTER_DARKEN, + CAIRO_SVG_FILTER_LIGHTEN, + CAIRO_SVG_FILTER_COLOR_DODGE, + CAIRO_SVG_FILTER_COLOR_BURN, + CAIRO_SVG_FILTER_HARD_LIGHT, + CAIRO_SVG_FILTER_SOFT_LIGHT, + CAIRO_SVG_FILTER_DIFFERENCE, + CAIRO_SVG_FILTER_EXCLUSION, + CAIRO_SVG_FILTER_HUE, + CAIRO_SVG_FILTER_SATURATION, + CAIRO_SVG_FILTER_COLOR, + CAIRO_SVG_FILTER_LUMINOSITY, +}; + +typedef struct _cairo_svg_page { + cairo_svg_stream_t xml_node; +} cairo_svg_page_t; + +typedef struct _cairo_svg_document { + cairo_output_stream_t *output_stream; + unsigned long refcount; + cairo_surface_t *owner; + cairo_bool_t finished; + + double width; + double height; + cairo_svg_unit_t unit; + + cairo_svg_stream_t xml_node_defs; + cairo_svg_stream_t xml_node_glyphs; + cairo_svg_stream_t xml_node_filters; + + unsigned int linear_pattern_id; + unsigned int radial_pattern_id; + unsigned int pattern_id; + unsigned int clip_id; + unsigned int mask_id; + unsigned int compositing_group_id; + unsigned int filter_id; + + cairo_bool_t filters_emitted[CAIRO_SVG_FILTER_LAST_STATIC_FILTER]; + + cairo_svg_version_t svg_version; + + cairo_scaled_font_subsets_t *font_subsets; + + cairo_hash_table_t *paints; +} cairo_svg_document_t; + +// Must be compatible with the struct _cairo_svg_surface_start. +typedef struct _cairo_svg_surface { + cairo_surface_t base; + + cairo_bool_t force_fallbacks; + + unsigned int source_id; + unsigned int depth; + + double width; + double height; + cairo_bool_t surface_bounded; + + cairo_svg_document_t *document; + + cairo_svg_stream_t xml_node; + cairo_array_t page_set; + + cairo_hash_table_t *source_surfaces; + + cairo_surface_clipper_t clipper; + cairo_svg_stream_t *current_clipper_stream; + unsigned int clip_level; + + cairo_bool_t transitive_paint_used; + + cairo_paginated_mode_t paginated_mode; +} cairo_svg_surface_t; + +static cairo_status_t +_cairo_svg_document_create (cairo_output_stream_t *stream, + double width, + double height, + cairo_svg_version_t version, + cairo_svg_document_t **document_out); + +static cairo_status_t +_cairo_svg_document_destroy (cairo_svg_document_t *document); + +static cairo_status_t +_cairo_svg_document_finish (cairo_svg_document_t *document); + +static cairo_svg_document_t * +_cairo_svg_document_reference (cairo_svg_document_t *document); + +static cairo_surface_t * +_cairo_svg_surface_create_for_document (cairo_svg_document_t *document, + cairo_content_t content, + double width, + double height, + cairo_bool_t bounded); + +static cairo_surface_t * +_cairo_svg_surface_create_for_stream_internal (cairo_output_stream_t *stream, + double width, + double height, + cairo_svg_version_t version); + +static cairo_status_t +_cairo_svg_surface_emit_composite_pattern (cairo_svg_stream_t *output, + cairo_svg_surface_t *surface, + cairo_surface_pattern_t *pattern, + unsigned int pattern_id, + const cairo_matrix_t *parent_matrix); + +static cairo_status_t +_cairo_svg_surface_emit_paint (cairo_svg_stream_t *output, + cairo_svg_surface_t *surface, + const cairo_pattern_t *source, + cairo_bool_t at_origin); + +static const cairo_surface_backend_t cairo_svg_surface_backend; +static const cairo_paginated_surface_backend_t cairo_svg_surface_paginated_backend; + +/** + * cairo_svg_surface_create_for_stream: + * @write_func: a #cairo_write_func_t to accept the output data, may be %NULL + * to indicate a no-op @write_func. With a no-op @write_func, + * the surface may be queried or used as a source without + * generating any temporary files. + * @closure: the closure argument for @write_func + * @width_in_points: width of the surface, in points (1 point == 1/72.0 inch) + * @height_in_points: height of the surface, in points (1 point == 1/72.0 inch) + * + * Creates a SVG surface of the specified size in points to be written + * incrementally to the stream represented by @write_func and @closure. + * + * Return value: a pointer to the newly created surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if an error such as out of memory + * occurs. You can use cairo_surface_status() to check for this. + * + * Since: 1.2 + **/ +cairo_surface_t * +cairo_svg_surface_create_for_stream (cairo_write_func_t write_func, + void *closure, + double width, + double height) +{ + cairo_output_stream_t *stream; + + stream = _cairo_output_stream_create (write_func, NULL, closure); + if (_cairo_output_stream_get_status (stream)) + return _cairo_surface_create_in_error (_cairo_output_stream_destroy (stream)); + + return _cairo_svg_surface_create_for_stream_internal (stream, width, height, CAIRO_SVG_VERSION_1_1); +} + +/** + * cairo_svg_surface_create: + * @filename: a filename for the SVG output (must be writable), %NULL may be + * used to specify no output. This will generate a SVG surface that + * may be queried and used as a source, without generating a + * temporary file. + * @width_in_points: width of the surface, in points (1 point == 1/72.0 inch) + * @height_in_points: height of the surface, in points (1 point == 1/72.0 inch) + * + * Creates a SVG surface of the specified size in points to be written + * to @filename. + * + * The SVG surface backend recognizes the following MIME types for the + * data attached to a surface (see cairo_surface_set_mime_data()) when + * it is used as a source pattern for drawing on this surface: + * %CAIRO_MIME_TYPE_JPEG, %CAIRO_MIME_TYPE_PNG, + * %CAIRO_MIME_TYPE_URI. If any of them is specified, the SVG backend + * emits a href with the content of MIME data instead of a surface + * snapshot (PNG, Base64-encoded) in the corresponding image tag. + * + * The unofficial MIME type %CAIRO_MIME_TYPE_URI is examined + * first. If present, the URI is emitted as is: assuring the + * correctness of URI is left to the client code. + * + * If %CAIRO_MIME_TYPE_URI is not present, but %CAIRO_MIME_TYPE_JPEG + * or %CAIRO_MIME_TYPE_PNG is specified, the corresponding data is + * Base64-encoded and emitted. + * + * If %CAIRO_MIME_TYPE_UNIQUE_ID is present, all surfaces with the same + * unique identifier will only be embedded once. + * + * Return value: a pointer to the newly created surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if an error such as out of memory + * occurs. You can use cairo_surface_status() to check for this. + * + * Since: 1.2 + **/ +cairo_surface_t * +cairo_svg_surface_create (const char *filename, + double width, + double height) +{ + cairo_output_stream_t *stream; + + stream = _cairo_output_stream_create_for_filename (filename); + if (_cairo_output_stream_get_status (stream)) + return _cairo_surface_create_in_error (_cairo_output_stream_destroy (stream)); + + return _cairo_svg_surface_create_for_stream_internal (stream, width, height, CAIRO_SVG_VERSION_1_1); +} + +static cairo_bool_t +_cairo_surface_is_svg (cairo_surface_t *surface) +{ + return surface->backend == &cairo_svg_surface_backend; +} + +/* If the abstract_surface is a paginated surface, and that paginated + * surface's target is a svg_surface, then set svg_surface to that + * target. Otherwise return FALSE. + */ +static cairo_bool_t +_extract_svg_surface (cairo_surface_t *surface, + cairo_svg_surface_t **svg_surface) +{ + cairo_surface_t *target; + + if (surface->status) + return FALSE; + if (surface->finished) { + (void) _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return FALSE; + } + + if (!_cairo_surface_is_paginated (surface)) { + (void) _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + return FALSE; + } + + target = _cairo_paginated_surface_get_target (surface); + if (target->status) { + (void) _cairo_surface_set_error (surface, target->status); + return FALSE; + } + if (target->finished) { + (void) _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return FALSE; + } + + if (!_cairo_surface_is_svg (target)) { + (void) _cairo_surface_set_error (surface, _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + return FALSE; + } + + *svg_surface = (cairo_svg_surface_t *) target; + return TRUE; +} + +/** + * cairo_svg_surface_restrict_to_version: + * @surface: a SVG #cairo_surface_t + * @version: SVG version + * + * Restricts the generated SVG file to @version. See cairo_svg_get_versions() + * for a list of available version values that can be used here. + * + * This function should only be called before any drawing operations + * have been performed on the given surface. The simplest way to do + * this is to call this function immediately after creating the + * surface. + * + * Since: 1.2 + **/ +void +cairo_svg_surface_restrict_to_version (cairo_surface_t *abstract_surface, + cairo_svg_version_t version) +{ + cairo_svg_surface_t *surface; + + if (! _extract_svg_surface (abstract_surface, &surface)) + return; + + if (version < CAIRO_SVG_VERSION_LAST) + surface->document->svg_version = version; +} + +/** + * cairo_svg_get_versions: + * @versions: supported version list + * @num_versions: list length + * + * Used to retrieve the list of supported versions. See + * cairo_svg_surface_restrict_to_version(). + * + * Since: 1.2 + **/ +void +cairo_svg_get_versions (cairo_svg_version_t const **versions, + int *num_versions) +{ + if (versions != NULL) + *versions = _cairo_svg_versions; + + if (num_versions != NULL) + *num_versions = CAIRO_SVG_VERSION_LAST; +} + +/** + * cairo_svg_version_to_string: + * @version: a version id + * + * Get the string representation of the given @version id. This function + * will return %NULL if @version isn't valid. See cairo_svg_get_versions() + * for a way to get the list of valid version ids. + * + * Return value: the string associated to given version. + * + * Since: 1.2 + **/ +const char * +cairo_svg_version_to_string (cairo_svg_version_t version) +{ + if (version >= CAIRO_SVG_VERSION_LAST) + return NULL; + + return _cairo_svg_version_strings[version]; +} + +/** + * cairo_svg_surface_set_document_unit: + * @surface: a SVG #cairo_surface_t + * @unit: SVG unit + * + * Use the specified unit for the width and height of the generated SVG file. + * See #cairo_svg_unit_t for a list of available unit values that can be used + * here. + * + * This function can be called at any time before generating the SVG file. + * + * However to minimize the risk of ambiguities it's recommended to call it + * before any drawing operations have been performed on the given surface, to + * make it clearer what the unit used in the drawing operations is. + * + * The simplest way to do this is to call this function immediately after + * creating the SVG surface. + * + * Note if this function is never called, the default unit for SVG documents + * generated by cairo will be user unit. + * + * Since: 1.16 + **/ +void +cairo_svg_surface_set_document_unit (cairo_surface_t *abstract_surface, + cairo_svg_unit_t unit) +{ + cairo_svg_surface_t *surface; + + if (! _extract_svg_surface (abstract_surface, &surface)) + return; + + if (unit <= CAIRO_SVG_UNIT_PERCENT) + surface->document->unit = unit; +} + +/** + * cairo_svg_surface_get_document_unit: + * @surface: a SVG #cairo_surface_t + * + * Get the unit of the SVG surface. + * + * If the surface passed as an argument is not a SVG surface, the function + * sets the error status to CAIRO_STATUS_SURFACE_TYPE_MISMATCH and returns + * CAIRO_SVG_UNIT_USER. + * + * Return value: the SVG unit of the SVG surface. + * + * Since: 1.16 + **/ +cairo_svg_unit_t +cairo_svg_surface_get_document_unit (cairo_surface_t *abstract_surface) +{ + cairo_svg_surface_t *surface; + + if (! _extract_svg_surface (abstract_surface, &surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return CAIRO_SVG_UNIT_USER; + } + + return surface->document->unit; +} + +static void +_cairo_svg_paint_compute (cairo_svg_document_t *document, cairo_svg_paint_t *paint) { + for (unsigned int i = 0; i < paint->paint_elements.num_elements; i++) { + cairo_svg_paint_element_t *paint_element = _cairo_array_index (&paint->paint_elements, i); + + cairo_svg_paint_t paint_key; + paint_key.source_id = paint_element->source_id; + _cairo_svg_paint_init_key (&paint_key); + + cairo_svg_paint_t *found_paint_entry = _cairo_hash_table_lookup (document->paints, + &paint_key.base); + assert (found_paint_entry); + + _cairo_svg_paint_compute (document, found_paint_entry); + + cairo_box_double_t box = found_paint_entry->box; + _cairo_matrix_transform_bounding_box (&paint_element->matrix, + &box.p1.x, &box.p1.y, + &box.p2.x, &box.p2.y, + NULL); + _cairo_svg_paint_box_add_padding (&box); + + if (i == 0) { + paint->box = box; + } else { + paint->box.p1.x = MIN (paint->box.p1.x, box.p1.x); + paint->box.p1.y = MIN (paint->box.p1.y, box.p1.y); + paint->box.p2.x = MAX (paint->box.p2.x, box.p2.x); + paint->box.p2.y = MAX (paint->box.p2.y, box.p2.y); + } + } + _cairo_array_truncate (&paint->paint_elements, 0); +} + +static void +_cairo_svg_paint_compute_func (void *entry, void *closure) +{ + cairo_svg_paint_t *paint = entry; + cairo_svg_document_t *document = closure; + + _cairo_svg_paint_compute (document, paint); +} + +static cairo_status_t +_cairo_svg_surface_add_source_surface (cairo_svg_surface_t *surface, + cairo_surface_t *source_surface, + cairo_bool_t *is_new, + cairo_svg_source_surface_t **result_source_surface) +{ + cairo_status_t status; + + cairo_svg_source_surface_t source_surface_key; + source_surface_key.id = source_surface->unique_id; + cairo_surface_get_mime_data (source_surface, + CAIRO_MIME_TYPE_UNIQUE_ID, + (const unsigned char **) &source_surface_key.unique_id, + &source_surface_key.unique_id_length); + _cairo_svg_source_surface_init_key (&source_surface_key); + + cairo_svg_source_surface_t *found_source_surface_entry = _cairo_hash_table_lookup (surface->source_surfaces, + &source_surface_key.base); + if (found_source_surface_entry) { + *is_new = FALSE; + *result_source_surface = found_source_surface_entry; + return CAIRO_STATUS_SUCCESS; + } + + unsigned char *unique_id = NULL; + unsigned long unique_id_length = 0; + if (source_surface_key.unique_id && source_surface_key.unique_id_length > 0) { + unique_id = _cairo_malloc (source_surface_key.unique_id_length); + if (unique_id == NULL) { + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + unique_id_length = source_surface_key.unique_id_length; + memcpy (unique_id, source_surface_key.unique_id, unique_id_length); + } else { + unique_id = NULL; + unique_id_length = 0; + } + + cairo_svg_source_surface_t *source_surface_entry = _cairo_calloc (sizeof (cairo_svg_source_surface_t)); + if (source_surface_entry == NULL) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail; + } + source_surface_entry->id = source_surface_key.id; + source_surface_entry->unique_id_length = unique_id_length; + source_surface_entry->unique_id = unique_id; + _cairo_svg_source_surface_init_key (source_surface_entry); + status = _cairo_hash_table_insert (surface->source_surfaces, &source_surface_entry->base); + if (unlikely (status)) { + goto fail; + } + + *is_new = TRUE; + *result_source_surface = source_surface_entry; + return CAIRO_STATUS_SUCCESS; + + fail: + free (unique_id); + free (source_surface_entry); + return status; +} + +static cairo_bool_t +_cairo_svg_surface_cliprect_covers_surface (cairo_svg_surface_t *surface, + cairo_path_fixed_t *path) +{ + cairo_box_t box; + + return surface->surface_bounded && + _cairo_path_fixed_is_box (path, &box) && + box.p1.x <= 0 && + box.p1.y <= 0 && + _cairo_fixed_to_double (box.p2.x) >= surface->width && + _cairo_fixed_to_double (box.p2.y) >= surface->height; +} + +static cairo_status_t +_cairo_svg_surface_clipper_intersect_clip_path (cairo_surface_clipper_t *clipper, + cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_svg_surface_t *surface = cairo_container_of (clipper, + cairo_svg_surface_t, + clipper); + cairo_svg_document_t *document = surface->document; + + if (path == NULL) { + for (unsigned int i = 0; i < surface->clip_level; i++) { + _cairo_svg_stream_printf (surface->current_clipper_stream, "\n"); + } + surface->clip_level = 0; + return CAIRO_STATUS_SUCCESS; + } + + /* skip trivial whole-page clips */ + if (_cairo_svg_surface_cliprect_covers_surface (surface, path)) { + return CAIRO_STATUS_SUCCESS; + } + + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + document->clip_id); + + _cairo_svg_stream_printf (&document->xml_node_defs, + "xml_node_defs, path, NULL); + _cairo_svg_stream_printf (&document->xml_node_defs, "/>\n"); + + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + _cairo_svg_stream_printf (surface->current_clipper_stream, + "\n", + document->clip_id); + + document->clip_id++; + surface->clip_level++; + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_svg_surface_reset_clip (cairo_svg_surface_t *surface) +{ + _cairo_surface_clipper_reset (&surface->clipper); + if (surface->current_clipper_stream != NULL) { + for (unsigned int i = 0; i < surface->clip_level; i++) { + _cairo_svg_stream_printf (surface->current_clipper_stream, "\n"); + } + } + surface->clip_level = 0; +} + +static cairo_status_t +_cairo_svg_surface_set_clip (cairo_svg_surface_t *surface, + cairo_svg_stream_t *clipper_stream, + const cairo_clip_t *clip) +{ + if (surface->current_clipper_stream != clipper_stream) { + _cairo_svg_surface_reset_clip (surface); + surface->current_clipper_stream = clipper_stream; + } + return _cairo_surface_clipper_set_clip (&surface->clipper, clip); +} + +static cairo_surface_t * +_cairo_svg_surface_create_for_document (cairo_svg_document_t *document, + cairo_content_t content, + double width, + double height, + cairo_bool_t bounded) +{ + cairo_svg_surface_t *surface; + cairo_surface_t *paginated; + cairo_status_t status; + + surface = _cairo_calloc (sizeof (cairo_svg_surface_t)); + if (unlikely (surface == NULL)) { + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + _cairo_surface_init (&surface->base, + &cairo_svg_surface_backend, + NULL, /* device */ + content, + TRUE); /* is_vector */ + + surface->source_id = surface->base.unique_id; + surface->depth = 0; + + surface->width = width; + surface->height = height; + surface->surface_bounded = bounded; + + surface->document = _cairo_svg_document_reference (document); + + surface->xml_node = _cairo_svg_stream_create (); + _cairo_array_init (&surface->page_set, sizeof (cairo_svg_page_t)); + + surface->source_surfaces = _cairo_hash_table_create (_cairo_svg_source_surface_equal); + if (unlikely (surface->source_surfaces == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP; + } + + _cairo_surface_clipper_init (&surface->clipper, _cairo_svg_surface_clipper_intersect_clip_path); + surface->current_clipper_stream = NULL; + surface->clip_level = 0; + surface->transitive_paint_used = FALSE; + + surface->paginated_mode = CAIRO_PAGINATED_MODE_ANALYZE; + + surface->force_fallbacks = FALSE; + + + paginated = _cairo_paginated_surface_create (&surface->base, + surface->base.content, + &cairo_svg_surface_paginated_backend); + status = paginated->status; + if (status == CAIRO_STATUS_SUCCESS) { + /* paginated keeps the only reference to surface now, drop ours */ + cairo_surface_destroy (&surface->base); + return paginated; + } + + /* ignore status as we are on the error path */ + CLEANUP: + (void) _cairo_svg_stream_destroy (&surface->xml_node); + (void) _cairo_svg_document_destroy (document); + + free (surface); + + return _cairo_surface_create_in_error (status); +} + +static cairo_surface_t * +_cairo_svg_surface_create_for_stream_internal (cairo_output_stream_t *stream, + double width, + double height, + cairo_svg_version_t version) +{ + cairo_svg_document_t *document; + cairo_surface_t *surface; + cairo_status_t status; + + status = _cairo_svg_document_create (stream, + width, height, version, + &document); + if (unlikely (status)) { + surface = _cairo_surface_create_in_error (status); + /* consume the output stream on behalf of caller */ + status = _cairo_output_stream_destroy (stream); + return surface; + } + + surface = _cairo_svg_surface_create_for_document (document, CAIRO_CONTENT_COLOR_ALPHA, + width, height, TRUE); + if (surface->status) { + return surface; + } + + document->owner = surface; + status = _cairo_svg_document_destroy (document); + /* the ref count should be 2 at this point */ + assert (status == CAIRO_STATUS_SUCCESS); + + return surface; +} + +static cairo_svg_page_t * +_cairo_svg_surface_store_page (cairo_svg_surface_t *surface) +{ + _cairo_svg_surface_reset_clip (surface); + cairo_svg_page_t page; + page.xml_node = surface->xml_node; + if (_cairo_array_append (&surface->page_set, &page)) { + return NULL; + } + surface->xml_node = _cairo_svg_stream_create (); + return _cairo_array_index (&surface->page_set, + surface->page_set.num_elements - 1); +} + +static cairo_int_status_t +_cairo_svg_surface_copy_page (void *abstract_surface) +{ + cairo_svg_surface_t *surface = abstract_surface; + + cairo_svg_page_t *page = _cairo_svg_surface_store_page (surface); + if (unlikely (page == NULL)) { + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + _cairo_svg_stream_copy (&page->xml_node, &surface->xml_node); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_svg_surface_show_page (void *abstract_surface) +{ + cairo_svg_surface_t *surface = abstract_surface; + + cairo_svg_page_t *page = _cairo_svg_surface_store_page (surface); + if (unlikely (page == NULL)) { + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_svg_surface_emit_transform (cairo_svg_stream_t *output, + char const *attribute_name, + const cairo_matrix_t *object_matrix, + const cairo_matrix_t *parent_matrix) +{ + cairo_matrix_t matrix = *object_matrix; + + if (parent_matrix != NULL) { + cairo_matrix_multiply (&matrix, &matrix, parent_matrix); + } + + if (!_cairo_matrix_is_identity (&matrix)) { + _cairo_svg_stream_printf (output, + " %s=\"matrix(%f, %f, %f, %f, %f, %f)\"", + attribute_name, + matrix.xx, matrix.yx, + matrix.xy, matrix.yy, + matrix.x0, matrix.y0); + } +} + +typedef struct { + cairo_svg_stream_t *output; + const cairo_matrix_t *ctm_inverse; +} svg_path_info_t; + +static cairo_status_t +_cairo_svg_path_move_to (void *closure, + const cairo_point_t *point) +{ + svg_path_info_t *info = closure; + double x = _cairo_fixed_to_double (point->x); + double y = _cairo_fixed_to_double (point->y); + + if (info->ctm_inverse) + cairo_matrix_transform_point (info->ctm_inverse, &x, &y); + + _cairo_svg_stream_printf (info->output, "M %f %f ", x, y); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_svg_path_line_to (void *closure, + const cairo_point_t *point) +{ + svg_path_info_t *info = closure; + double x = _cairo_fixed_to_double (point->x); + double y = _cairo_fixed_to_double (point->y); + + if (info->ctm_inverse) + cairo_matrix_transform_point (info->ctm_inverse, &x, &y); + + _cairo_svg_stream_printf (info->output, "L %f %f ", x, y); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_svg_path_curve_to (void *closure, + const cairo_point_t *b, + const cairo_point_t *c, + const cairo_point_t *d) +{ + svg_path_info_t *info = closure; + double bx = _cairo_fixed_to_double (b->x); + double by = _cairo_fixed_to_double (b->y); + double cx = _cairo_fixed_to_double (c->x); + double cy = _cairo_fixed_to_double (c->y); + double dx = _cairo_fixed_to_double (d->x); + double dy = _cairo_fixed_to_double (d->y); + + if (info->ctm_inverse) { + cairo_matrix_transform_point (info->ctm_inverse, &bx, &by); + cairo_matrix_transform_point (info->ctm_inverse, &cx, &cy); + cairo_matrix_transform_point (info->ctm_inverse, &dx, &dy); + } + + _cairo_svg_stream_printf (info->output, + "C %f %f %f %f %f %f ", + bx, by, cx, cy, dx, dy); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_svg_path_close_path (void *closure) +{ + svg_path_info_t *info = closure; + + _cairo_svg_stream_printf (info->output, "Z "); + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_svg_surface_emit_path (cairo_svg_stream_t *output, + const cairo_path_fixed_t *path, + const cairo_matrix_t *ctm_inverse) +{ + cairo_status_t status; + svg_path_info_t info; + + _cairo_svg_stream_printf (output, " d=\""); + + info.output = output; + info.ctm_inverse = ctm_inverse; + status = _cairo_path_fixed_interpret (path, + _cairo_svg_path_move_to, + _cairo_svg_path_line_to, + _cairo_svg_path_curve_to, + _cairo_svg_path_close_path, + &info); + assert (status == CAIRO_STATUS_SUCCESS); + + _cairo_svg_stream_printf (output, "\""); +} + +static cairo_int_status_t +_cairo_svg_document_emit_outline_glyph_data (cairo_svg_document_t *document, + cairo_scaled_font_t *scaled_font, + unsigned long glyph_index) +{ + cairo_scaled_glyph_t *scaled_glyph; + cairo_int_status_t status; + + status = _cairo_scaled_glyph_lookup (scaled_font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_METRICS | CAIRO_SCALED_GLYPH_INFO_PATH, + NULL, /* foreground color */ + &scaled_glyph); + if (unlikely (status)) { + return status; + } + + if (_cairo_path_fixed_size (scaled_glyph->path) != 0) { + _cairo_svg_stream_printf (&document->xml_node_glyphs, + "xml_node_glyphs, + scaled_glyph->path, + NULL); + + _cairo_svg_stream_printf (&document->xml_node_glyphs, + "/>\n"); + } + + return status; +} + +static cairo_int_status_t +_cairo_svg_document_emit_bitmap_glyph_data (cairo_svg_document_t *document, + cairo_scaled_font_t *scaled_font, + unsigned long glyph_index) +{ + cairo_status_t status; + + cairo_scaled_glyph_t *scaled_glyph; + status = _cairo_scaled_glyph_lookup (scaled_font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_METRICS | CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + if (unlikely (status)) { + return status; + } + + cairo_bool_t use_recording_surface = (scaled_glyph->has_info & CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE) != 0; + cairo_matrix_t glyph_matrix = scaled_glyph->surface->base.device_transform_inverse; + cairo_image_surface_t *glyph_image_surface = scaled_glyph->surface; + + // Attempt to recognize a common pattern for a bitmap font and extract the original glyph image from it + cairo_surface_t *extracted_surface; + cairo_image_surface_t *extracted_image = NULL; + void *extracted_image_extra; + if (use_recording_surface) { + cairo_recording_surface_t *recording_surface = (cairo_recording_surface_t *) scaled_glyph->recording_surface; + if (recording_surface->commands.num_elements == 1) { + cairo_command_t *command = *((cairo_command_t **) _cairo_array_index (&recording_surface->commands, 0)); + if (command->header.type == CAIRO_COMMAND_MASK && + command->header.op == CAIRO_OPERATOR_OVER && + command->header.clip == NULL && + command->mask.source.base.type == CAIRO_PATTERN_TYPE_SOLID && + _cairo_color_equal (&command->mask.source.solid.color, _cairo_stock_color (CAIRO_STOCK_BLACK)) && + command->mask.mask.base.extend == CAIRO_EXTEND_NONE && + command->mask.mask.base.type == CAIRO_PATTERN_TYPE_SURFACE && + command->mask.mask.surface.surface->type == CAIRO_SURFACE_TYPE_IMAGE) { + extracted_surface = command->mask.mask.surface.surface; + if (_cairo_surface_acquire_source_image (extracted_surface, + &extracted_image, + &extracted_image_extra) == CAIRO_STATUS_SUCCESS) { + if (extracted_image->format == CAIRO_FORMAT_A1 || extracted_image->format == CAIRO_FORMAT_A8) { + use_recording_surface = FALSE; + glyph_image_surface = extracted_image; + glyph_matrix = command->mask.mask.base.matrix; + status = cairo_matrix_invert (&glyph_matrix); + assert (status == CAIRO_STATUS_SUCCESS); + } + } + } + } + } + + cairo_surface_t *paginated_surface = _cairo_svg_surface_create_for_document (document, + CAIRO_CONTENT_COLOR_ALPHA, + 0, + 0, + FALSE); + cairo_svg_surface_t *svg_surface = (cairo_svg_surface_t *) _cairo_paginated_surface_get_target (paginated_surface); + status = paginated_surface->status; + if (unlikely (status)) { + goto cleanup; + } + + unsigned int source_id = svg_surface->base.unique_id; + + cairo_surface_set_fallback_resolution (paginated_surface, + document->owner->x_fallback_resolution, + document->owner->y_fallback_resolution); + + cairo_svg_stream_t temporary_stream = _cairo_svg_stream_create (); + + unsigned int mask_id = document->mask_id++; + + _cairo_svg_stream_printf (&temporary_stream, + "\n", + mask_id); + + cairo_pattern_t *pattern = cairo_pattern_create_for_surface (use_recording_surface ? scaled_glyph->recording_surface + : &glyph_image_surface->base); + _cairo_svg_surface_emit_composite_pattern (&temporary_stream, + svg_surface, + (cairo_surface_pattern_t *) pattern, + invalid_pattern_id, + NULL); + cairo_pattern_destroy (pattern); + + _cairo_svg_stream_printf (&temporary_stream, "\n"); + + _cairo_svg_stream_copy (&temporary_stream, &document->xml_node_defs); + + status = _cairo_svg_stream_destroy (&temporary_stream); + if (unlikely (status)) { + goto cleanup; + } + + svg_surface->transitive_paint_used = TRUE; + + _cairo_svg_stream_printf (&document->xml_node_glyphs, "xml_node_glyphs, + source_id, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_RECTANGLE); + _cairo_svg_stream_printf (&document->xml_node_glyphs, + " mask=\"url(#mask-%d)\"", + mask_id); + if (!use_recording_surface) { + _cairo_svg_surface_emit_transform (&document->xml_node_glyphs, + "transform", + &glyph_matrix, + NULL); + } + _cairo_svg_stream_printf (&document->xml_node_glyphs, "/>\n"); + + cairo_svg_paint_t *paint_entry = _cairo_calloc (sizeof (cairo_svg_paint_t)); + if (paint_entry == NULL) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto cleanup; + } + paint_entry->source_id = source_id; + paint_entry->box.p1.x = 0; + paint_entry->box.p1.y = 0; + paint_entry->box.p2.x = glyph_image_surface->width; + paint_entry->box.p2.y = glyph_image_surface->height; + if (use_recording_surface) { + _cairo_matrix_transform_bounding_box (&glyph_matrix, + &paint_entry->box.p1.x, &paint_entry->box.p1.y, + &paint_entry->box.p2.x, &paint_entry->box.p2.y, + NULL); + } + _cairo_svg_paint_box_add_padding (&paint_entry->box); + _cairo_array_init (&paint_entry->paint_elements, sizeof (cairo_svg_paint_element_t)); + _cairo_svg_paint_init_key (paint_entry); + status = _cairo_hash_table_insert (document->paints, &paint_entry->base); + if (unlikely (status)) { + goto cleanup; + } + + cleanup: + if (status == CAIRO_STATUS_SUCCESS) { + status = cairo_surface_status (paginated_surface); + } + cairo_surface_destroy (paginated_surface); + + if (extracted_image != NULL) { + _cairo_surface_release_source_image (extracted_surface, extracted_image, extracted_image_extra); + } + + return status; +} + +static cairo_int_status_t +_cairo_svg_document_emit_glyph (cairo_svg_document_t *document, + cairo_scaled_font_t *scaled_font, + unsigned long scaled_font_glyph_index, + unsigned int font_id, + unsigned int subset_glyph_index) +{ + cairo_int_status_t status; + + _cairo_svg_stream_printf (&document->xml_node_glyphs, + "\n", + font_id, + subset_glyph_index); + + status = _cairo_svg_document_emit_outline_glyph_data (document, + scaled_font, + scaled_font_glyph_index); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) + status = _cairo_svg_document_emit_bitmap_glyph_data (document, + scaled_font, + scaled_font_glyph_index); + if (unlikely (status)) + return status; + + _cairo_svg_stream_printf (&document->xml_node_glyphs, "\n"); + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_svg_document_emit_font_subset (cairo_scaled_font_subset_t *font_subset, + void *closure) +{ + cairo_svg_document_t *document = closure; + cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS; + unsigned int i; + + _cairo_scaled_font_freeze_cache (font_subset->scaled_font); + for (i = 0; i < font_subset->num_glyphs; i++) { + status = _cairo_svg_document_emit_glyph (document, + font_subset->scaled_font, + font_subset->glyphs[i], + font_subset->font_id, i); + if (unlikely (status)) + break; + } + _cairo_scaled_font_thaw_cache (font_subset->scaled_font); + + return status; +} + +static cairo_status_t +_cairo_svg_document_emit_font_subsets (cairo_svg_document_t *document) +{ + cairo_status_t status; + + status = _cairo_scaled_font_subsets_foreach_scaled (document->font_subsets, + _cairo_svg_document_emit_font_subset, + document); + _cairo_scaled_font_subsets_destroy (document->font_subsets); + document->font_subsets = NULL; + + return status; +} + +static cairo_bool_t +_cairo_svg_surface_are_operation_and_pattern_supported (cairo_svg_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *pattern) +{ + if (surface->force_fallbacks) { + return FALSE; + } + + if (op == CAIRO_OPERATOR_SATURATE) { + return FALSE; + } + + /* SVG 1.1 does not support these operators. We already have code for them for SVG 2 + * that can be enabled when SVG 2 becomes widespread. */ + if (op == CAIRO_OPERATOR_OVERLAY || + op == CAIRO_OPERATOR_COLOR_DODGE || + op == CAIRO_OPERATOR_COLOR_BURN || + op == CAIRO_OPERATOR_HARD_LIGHT || + op == CAIRO_OPERATOR_SOFT_LIGHT || + op == CAIRO_OPERATOR_DIFFERENCE || + op == CAIRO_OPERATOR_EXCLUSION || + op == CAIRO_OPERATOR_HSL_HUE || + op == CAIRO_OPERATOR_HSL_SATURATION || + op == CAIRO_OPERATOR_HSL_COLOR || + op == CAIRO_OPERATOR_HSL_LUMINOSITY) { + return FALSE; + } + + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + /* Do not cause stack overflow because of too deep or infinite recording surfaces. */ + if (((cairo_surface_pattern_t *) pattern)->surface->type == CAIRO_SURFACE_TYPE_RECORDING && + surface->depth > 1000) { + return FALSE; + } + /* SVG doesn't support extends reflect and pad for surface pattern. */ + if (pattern->extend != CAIRO_EXTEND_NONE && pattern->extend != CAIRO_EXTEND_REPEAT) { + return FALSE; + } + } + + /* SVG 1.1 does not support the focal point (fx, fy) that is outside of the circle defined by (cx, cy) and r. */ + if (pattern->type == CAIRO_PATTERN_TYPE_RADIAL) { + cairo_radial_pattern_t *radial_pattern = (cairo_radial_pattern_t *) pattern; + double max_radius; + if (radial_pattern->cd1.radius > radial_pattern->cd2.radius) { + max_radius = radial_pattern->cd1.radius; + } else { + max_radius = radial_pattern->cd2.radius; + } + cairo_point_double_t c1 = radial_pattern->cd1.center; + cairo_point_double_t c2 = radial_pattern->cd2.center; + if ((c1.x - c2.x) * (c1.x - c2.x) + (c1.y - c2.y) * (c1.y - c2.y) >= max_radius * max_radius) { + return FALSE; + } + } + + if (pattern->type == CAIRO_PATTERN_TYPE_MESH) { + return FALSE; + } + + if (pattern->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) { + return FALSE; + } + + return TRUE; +} + +static cairo_status_t +_cairo_svg_surface_finish (void *abstract_surface) +{ + cairo_status_t status, final_status; + cairo_svg_surface_t *surface = abstract_surface; + + if (_cairo_paginated_surface_get_target (surface->document->owner) == &surface->base) { + final_status = _cairo_svg_document_finish (surface->document); + } else { + final_status = CAIRO_STATUS_SUCCESS; + } + + status = _cairo_svg_stream_destroy (&surface->xml_node); + if (final_status == CAIRO_STATUS_SUCCESS) { + final_status = status; + } + + for (unsigned int i = 0; i < surface->page_set.num_elements; i++) { + cairo_svg_page_t *page = _cairo_array_index (&surface->page_set, i); + status = _cairo_svg_stream_destroy (&page->xml_node); + if (final_status == CAIRO_STATUS_SUCCESS) { + final_status = status; + } + } + _cairo_array_fini (&surface->page_set); + + _cairo_surface_clipper_reset (&surface->clipper); + + _cairo_hash_table_foreach (surface->source_surfaces, _cairo_svg_source_surface_pluck, surface->source_surfaces); + _cairo_hash_table_destroy (surface->source_surfaces); + + status = _cairo_svg_document_destroy (surface->document); + if (final_status == CAIRO_STATUS_SUCCESS) { + final_status = status; + } + + return final_status; +} + +static const char * +_cairo_svg_surface_emit_static_filter (cairo_svg_document_t *document, enum cairo_svg_filter filter) +{ + if (!document->filters_emitted[filter]) { + document->filters_emitted[filter] = TRUE; + if (filter == CAIRO_SVG_FILTER_REMOVE_COLOR) { + // (r, g, b, a) -> (1, 1, 1, a) + _cairo_svg_stream_printf (&document->xml_node_filters, + "\n" + "\n" + "\n"); + } else if (filter == CAIRO_SVG_FILTER_REMOVE_COLOR_AND_INVERT_ALPHA) { + // (r, g, b, a) -> (1, 1, 1, 1 - a) + _cairo_svg_stream_printf (&document->xml_node_filters, + "\n" + "\n" + "\n"); + } else if (filter == CAIRO_SVG_FILTER_COLOR_TO_ALPHA) { + // (r, g, b, a) -> (1, 1, 1, 0.2126 * r + 0.7152 * g + 0.0722 * b) + _cairo_svg_stream_printf (&document->xml_node_filters, + "\n" + "\n" + "\n"); + } + } + + if (filter == CAIRO_SVG_FILTER_REMOVE_COLOR) { + return "remove-color"; + } else if (filter == CAIRO_SVG_FILTER_REMOVE_COLOR_AND_INVERT_ALPHA) { + return "remove-color-and-invert-alpha"; + } else if (filter == CAIRO_SVG_FILTER_COLOR_TO_ALPHA) { + return "color-to-alpha"; + } else { + ASSERT_NOT_REACHED; + } + return FALSE; /* squelch warning */ +} + +#define _CAIRO_SVG_SURFACE_OUTPUT_FE_COMPOSITE_FILTER(operation) \ + _cairo_svg_stream_printf (&surface->document->xml_node_filters, \ + "\n" \ + "document->xml_node_filters, \ + surface->source_id, \ + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_RECTANGLE_AT_ORIGIN); \ + _cairo_svg_stream_printf (&surface->document->xml_node_filters, \ + "/>\n" \ + "document->xml_node_filters, \ + surface->source_id, \ + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_RECTANGLE_AT_ORIGIN); \ + _cairo_svg_stream_printf (&surface->document->xml_node_filters, \ + "/>\n" \ + "\n" \ + "\n", \ + filter_id, \ + source_compositing_group_id, \ + destination_compositing_group_id); + +#define _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER(mode) \ + _cairo_svg_stream_printf (&surface->document->xml_node_filters, \ + "\n" \ + "document->xml_node_filters, \ + surface->source_id, \ + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_RECTANGLE_AT_ORIGIN); \ + _cairo_svg_stream_printf (&surface->document->xml_node_filters, \ + "/>\n" \ + "document->xml_node_filters, \ + surface->source_id, \ + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_RECTANGLE_AT_ORIGIN); \ + _cairo_svg_stream_printf (&surface->document->xml_node_filters, \ + "/>\n" \ + "\n" \ + "\n", \ + filter_id, \ + source_compositing_group_id, \ + destination_compositing_group_id); + +static unsigned int +_cairo_svg_surface_emit_parametric_filter (cairo_svg_surface_t *surface, + enum cairo_svg_filter filter, + unsigned int source_compositing_group_id, + unsigned int destination_compositing_group_id) +{ + unsigned int filter_id = surface->document->filter_id++; + switch (filter) { + case CAIRO_SVG_FILTER_OVER: + _CAIRO_SVG_SURFACE_OUTPUT_FE_COMPOSITE_FILTER ("over") + break; + case CAIRO_SVG_FILTER_IN: + _CAIRO_SVG_SURFACE_OUTPUT_FE_COMPOSITE_FILTER ("in") + break; + case CAIRO_SVG_FILTER_OUT: + _CAIRO_SVG_SURFACE_OUTPUT_FE_COMPOSITE_FILTER ("out") + break; + case CAIRO_SVG_FILTER_ATOP: + _CAIRO_SVG_SURFACE_OUTPUT_FE_COMPOSITE_FILTER ("atop") + break; + case CAIRO_SVG_FILTER_XOR: + _CAIRO_SVG_SURFACE_OUTPUT_FE_COMPOSITE_FILTER ("xor") + break; + case CAIRO_SVG_FILTER_ADD: + // This can also be done with , but it is not in SVG 1.1 + _cairo_svg_stream_printf (&surface->document->xml_node_filters, + "\n" + "document->xml_node_filters, + surface->source_id, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_RECTANGLE_AT_ORIGIN); + _cairo_svg_stream_printf (&surface->document->xml_node_filters, + "/>\n" + "document->xml_node_filters, + surface->source_id, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_RECTANGLE_AT_ORIGIN); + _cairo_svg_stream_printf (&surface->document->xml_node_filters, + "/>\n" + "\n" + "\n"); + break; + case CAIRO_SVG_FILTER_MULTIPLY: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("multiply") + break; + case CAIRO_SVG_FILTER_SCREEN: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("screen") + break; + case CAIRO_SVG_FILTER_OVERLAY: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("overlay") + break; + case CAIRO_SVG_FILTER_DARKEN: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("darken") + break; + case CAIRO_SVG_FILTER_LIGHTEN: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("lighten") + break; + case CAIRO_SVG_FILTER_COLOR_DODGE: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("color-dodge") + break; + case CAIRO_SVG_FILTER_COLOR_BURN: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("color-burn") + break; + case CAIRO_SVG_FILTER_HARD_LIGHT: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("hard-light") + break; + case CAIRO_SVG_FILTER_SOFT_LIGHT: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("soft-light") + break; + case CAIRO_SVG_FILTER_DIFFERENCE: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("difference") + break; + case CAIRO_SVG_FILTER_EXCLUSION: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("exclusion") + break; + case CAIRO_SVG_FILTER_HUE: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("hue") + break; + case CAIRO_SVG_FILTER_SATURATION: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("saturation") + break; + case CAIRO_SVG_FILTER_COLOR: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("color") + break; + case CAIRO_SVG_FILTER_LUMINOSITY: + _CAIRO_SVG_SURFACE_OUTPUT_FE_BLEND_FILTER ("luminosity") + break; + case CAIRO_SVG_FILTER_REMOVE_COLOR: + case CAIRO_SVG_FILTER_REMOVE_COLOR_AND_INVERT_ALPHA: + case CAIRO_SVG_FILTER_COLOR_TO_ALPHA: + case CAIRO_SVG_FILTER_LAST_STATIC_FILTER: + default: + ASSERT_NOT_REACHED; + } + return filter_id; +} + +typedef struct { + cairo_svg_stream_t *output; + unsigned int in_mem; + unsigned int trailing; + unsigned char src[3]; +} base64_write_closure_t; + +static char const base64_table[64] = +"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + +static cairo_status_t +base64_write_func (void *closure, + const unsigned char *data, + unsigned int length) +{ + base64_write_closure_t *info = (base64_write_closure_t *) closure; + unsigned int i; + unsigned char *src; + + src = info->src; + + if (info->in_mem + length < 3) { + for (i = 0; i < length; i++) { + src[i + info->in_mem] = *data++; + } + info->in_mem += length; + return CAIRO_STATUS_SUCCESS; + } + + do { + unsigned char dst[4]; + + for (i = info->in_mem; i < 3; i++) { + src[i] = *data++; + length--; + } + info->in_mem = 0; + + dst[0] = base64_table[src[0] >> 2]; + dst[1] = base64_table[(src[0] & 0x03) << 4 | src[1] >> 4]; + dst[2] = base64_table[(src[1] & 0x0f) << 2 | src[2] >> 6]; + dst[3] = base64_table[src[2] & 0xfc >> 2]; + /* Special case for the last missing bits */ + switch (info->trailing) { + case 2: + dst[2] = '='; + /* fall through */ + case 1: + dst[3] = '='; + default: + break; + } + _cairo_svg_stream_write (info->output, dst, 4); + } while (length >= 3); + + for (i = 0; i < length; i++) { + src[i] = *data++; + } + info->in_mem = length; + + return info->output->status; +} + +static cairo_int_status_t +_cairo_surface_base64_encode_jpeg (cairo_surface_t *surface, + cairo_svg_stream_t *output) +{ + const unsigned char *mime_data; + unsigned long mime_data_length; + cairo_image_info_t image_info; + base64_write_closure_t info; + cairo_status_t status; + + cairo_surface_get_mime_data (surface, CAIRO_MIME_TYPE_JPEG, + &mime_data, &mime_data_length); + if (mime_data == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_image_info_get_jpeg_info (&image_info, mime_data, mime_data_length); + if (unlikely (status)) + return status; + + if (image_info.num_components == 4) + return CAIRO_INT_STATUS_UNSUPPORTED; + + _cairo_svg_stream_printf (output, "data:image/jpeg;base64,"); + + info.output = output; + info.in_mem = 0; + info.trailing = 0; + + status = base64_write_func (&info, mime_data, mime_data_length); + if (unlikely (status)) + return status; + + if (info.in_mem > 0) { + memset (info.src + info.in_mem, 0, 3 - info.in_mem); + info.trailing = 3 - info.in_mem; + info.in_mem = 3; + status = base64_write_func (&info, NULL, 0); + } + + return status; +} + +static cairo_int_status_t +_cairo_surface_base64_encode_png (cairo_surface_t *surface, + cairo_svg_stream_t *output) +{ + const unsigned char *mime_data; + unsigned long mime_data_length; + base64_write_closure_t info; + cairo_status_t status; + + cairo_surface_get_mime_data (surface, CAIRO_MIME_TYPE_PNG, + &mime_data, &mime_data_length); + if (unlikely (surface->status)) + return surface->status; + if (mime_data == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + _cairo_svg_stream_printf (output, "data:image/png;base64,"); + + info.output = output; + info.in_mem = 0; + info.trailing = 0; + + status = base64_write_func (&info, mime_data, mime_data_length); + if (unlikely (status)) + return status; + + if (info.in_mem > 0) { + memset (info.src + info.in_mem, 0, 3 - info.in_mem); + info.trailing = 3 - info.in_mem; + info.in_mem = 3; + status = base64_write_func (&info, NULL, 0); + } + + return status; +} + +static cairo_int_status_t +_cairo_surface_base64_encode (cairo_surface_t *surface, + cairo_svg_stream_t *output) +{ + cairo_int_status_t status; + base64_write_closure_t info; + + status = _cairo_surface_base64_encode_jpeg (surface, output); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + status = _cairo_surface_base64_encode_png (surface, output); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + info.output = output; + info.in_mem = 0; + info.trailing = 0; + + _cairo_svg_stream_printf (info.output, "data:image/png;base64,"); + + status = cairo_surface_write_to_png_stream (surface, base64_write_func, + (void *) &info); + + if (unlikely (status)) + return status; + + if (info.in_mem > 0) { + memset (info.src + info.in_mem, 0, 3 - info.in_mem); + info.trailing = 3 - info.in_mem; + info.in_mem = 3; + status = base64_write_func (&info, NULL, 0); + } + + return status; +} + +/** + * _cairo_svg_surface_emit_attr_value: + * + * Write the value to output the stream as a sequence of characters, + * while escaping those which have special meaning in the XML + * attribute's value context: & and ". + **/ +static void +_cairo_svg_surface_emit_attr_value (cairo_svg_stream_t *stream, + const unsigned char *value, + unsigned int length) +{ + const unsigned char *p; + const unsigned char *q; + unsigned int i; + + /* we'll accumulate non-special chars in [q, p) range */ + p = value; + q = p; + for (i = 0; i < length; i++, p++) { + if (*p == '&' || *p == '"') { + /* flush what's left before special char */ + if (p != q) { + _cairo_svg_stream_write (stream, q, p - q); + q = p + 1; + } + + if (*p == '&') + _cairo_svg_stream_printf (stream, "&"); + else // p == '"' + _cairo_svg_stream_printf (stream, """); + } + } + + /* flush the trailing chars if any */ + if (p != q) + _cairo_svg_stream_write (stream, q, p - q); +} + +static cairo_status_t +_cairo_svg_surface_emit_surface (cairo_svg_document_t *document, + cairo_surface_t *surface, + unsigned int source_id) +{ + cairo_rectangle_int_t extents; + cairo_bool_t is_bounded; + cairo_status_t status; + const unsigned char *uri; + unsigned long uri_len; + + is_bounded = _cairo_surface_get_extents (surface, &extents); + assert (is_bounded); + + _cairo_svg_stream_printf (&document->xml_node_defs, + "xml_node_defs, " xlink:href=\""); + cairo_surface_get_mime_data (surface, CAIRO_MIME_TYPE_URI, + &uri, &uri_len); + if (uri != NULL) { + _cairo_svg_surface_emit_attr_value (&document->xml_node_defs, + uri, uri_len); + } else { + status = _cairo_surface_base64_encode (surface, + &document->xml_node_defs); + if (unlikely (status)) + return status; + } + _cairo_svg_stream_printf (&document->xml_node_defs, "\""); + } + + _cairo_svg_stream_printf (&document->xml_node_defs, "/>\n"); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_svg_surface_emit_composite_surface_pattern (cairo_svg_stream_t *output, + cairo_svg_surface_t *surface, + cairo_surface_pattern_t *pattern, + unsigned int pattern_id, + const cairo_matrix_t *parent_matrix) +{ + cairo_status_t status; + + cairo_matrix_t p2u = pattern->base.matrix; + status = cairo_matrix_invert (&p2u); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_STATUS_SUCCESS); + + cairo_bool_t is_new; + cairo_svg_source_surface_t *source_surface; + status = _cairo_svg_surface_add_source_surface (surface, + pattern->surface, + &is_new, + &source_surface); + if (unlikely (status)) { + return status; + } + unsigned int source_id = source_surface->id; + + if (is_new) { + status = _cairo_svg_surface_emit_surface (surface->document, + pattern->surface, + source_id); + if (unlikely (status)) { + return status; + } + } + + if (pattern_id != invalid_pattern_id) { + cairo_rectangle_int_t extents; + cairo_bool_t is_bounded; + + is_bounded = _cairo_surface_get_extents (pattern->surface, &extents); + assert (is_bounded); + + _cairo_svg_stream_printf (output, + "\n"); + } + + _cairo_svg_stream_printf (output, + "surface->content == CAIRO_CONTENT_ALPHA) { + cairo_bool_t can_skip_filter = FALSE; + if (pattern->surface->backend && + pattern->surface->backend->type == CAIRO_SURFACE_TYPE_IMAGE && + (((cairo_image_surface_t *) pattern->surface)->format == CAIRO_FORMAT_A1 || + ((cairo_image_surface_t *) pattern->surface)->format == CAIRO_FORMAT_A8)) { + can_skip_filter = TRUE; + } + if (!can_skip_filter) { + _cairo_svg_stream_printf (output, + " filter=\"url(#filter-%s)\"", + _cairo_svg_surface_emit_static_filter (surface->document, + CAIRO_SVG_FILTER_COLOR_TO_ALPHA)); + } + } + if (pattern_id == invalid_pattern_id) { + _cairo_svg_surface_emit_transform (output, + "transform", + &p2u, + parent_matrix); + } + _cairo_svg_stream_printf (output, "/>\n"); + + if (pattern_id != invalid_pattern_id) { + _cairo_svg_stream_printf (output, "\n"); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_svg_surface_emit_recording_surface (cairo_svg_surface_t *surface, + cairo_recording_surface_t *source, + unsigned int source_id, + cairo_bool_t *transitive_paint_used) +{ + cairo_status_t status; + cairo_svg_document_t *document = surface->document; + + cairo_surface_t *paginated_surface = _cairo_svg_surface_create_for_document (document, + source->base.content, + 0, + 0, + FALSE); + cairo_svg_surface_t *svg_surface = (cairo_svg_surface_t *) _cairo_paginated_surface_get_target (paginated_surface); + if (unlikely (paginated_surface->status)) { + return paginated_surface->status; + } + + svg_surface->source_id = source_id; + svg_surface->depth = surface->depth + 1; + + cairo_rectangle_int_t extents; + cairo_bool_t bounded = _cairo_surface_get_extents (&source->base, &extents); + + cairo_surface_set_fallback_resolution (paginated_surface, + document->owner->x_fallback_resolution, + document->owner->y_fallback_resolution); + + if (source->base.content == CAIRO_CONTENT_COLOR) { + _cairo_svg_surface_emit_paint (&svg_surface->xml_node, svg_surface, &_cairo_pattern_black.base, FALSE); + } + status = _cairo_recording_surface_replay (&source->base, paginated_surface); + if (unlikely (status)) { + cairo_surface_destroy (paginated_surface); + return status; + } + + cairo_surface_show_page (paginated_surface); + status = cairo_surface_status (paginated_surface); + if (unlikely (status)) { + cairo_surface_destroy (paginated_surface); + return status; + } + + unsigned int clip_id; + if (bounded) { + clip_id = document->clip_id++; + + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n" + "\n" + "\n", + clip_id, + extents.x, + extents.y, + extents.width, + extents.height); + } + + _cairo_svg_stream_printf (&document->xml_node_defs, + "xml_node_defs, + " clip-path=\"url(#clip-%d)\"", + clip_id); + } + + if (source->base.content == CAIRO_CONTENT_ALPHA) { + _cairo_svg_stream_printf (&document->xml_node_defs, + " filter=\"url(#filter-%s)\"", + _cairo_svg_surface_emit_static_filter (document, CAIRO_SVG_FILTER_REMOVE_COLOR)); + } + + _cairo_svg_stream_printf (&document->xml_node_defs, ">\n"); + + if (svg_surface->xml_node.elements.num_elements > 0) { + cairo_svg_page_t *page = _cairo_svg_surface_store_page (svg_surface); + if (unlikely (page == NULL)) { + cairo_surface_destroy (paginated_surface); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + } + + if (svg_surface->page_set.num_elements > 0) { + cairo_svg_page_t *page = _cairo_array_index (&svg_surface->page_set, svg_surface->page_set.num_elements - 1); + _cairo_svg_stream_copy (&page->xml_node, &document->xml_node_defs); + } + + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + *transitive_paint_used = svg_surface->transitive_paint_used; + + status = cairo_surface_status (paginated_surface); + cairo_surface_destroy (paginated_surface); + + return status; +} + +static cairo_recording_surface_t * +_cairo_svg_surface_to_recording_surface (const cairo_surface_pattern_t *pattern) +{ + cairo_surface_t *surface = pattern->surface; + if (_cairo_surface_is_paginated (surface)) + surface = _cairo_paginated_surface_get_recording (surface); + if (_cairo_surface_is_snapshot (surface)) + surface = _cairo_surface_snapshot_get_target (surface); + return (cairo_recording_surface_t *) surface; +} + +static cairo_bool_t +_cairo_svg_surface_svg_pattern_should_be_used (const cairo_pattern_t *pattern) +{ + cairo_rectangle_int_t extents; + return pattern->type == CAIRO_PATTERN_TYPE_SURFACE && + pattern->extend == CAIRO_EXTEND_REPEAT && + _cairo_surface_get_extents (((cairo_surface_pattern_t *) pattern)->surface, &extents); +} + +static cairo_bool_t +_cairo_svg_surface_svg_clip_or_svg_mask_should_be_used (const cairo_pattern_t *pattern) +{ + return pattern->type == CAIRO_PATTERN_TYPE_SURFACE && !_cairo_svg_surface_svg_pattern_should_be_used (pattern); +} + +static cairo_status_t +_cairo_svg_surface_emit_composite_recording_pattern (cairo_svg_stream_t *output, + cairo_svg_surface_t *surface, + cairo_surface_pattern_t *pattern, + unsigned int pattern_id, + const cairo_matrix_t *parent_matrix) +{ + cairo_status_t status; + cairo_svg_document_t *document = surface->document; + + cairo_matrix_t p2u = pattern->base.matrix; + status = cairo_matrix_invert (&p2u); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_STATUS_SUCCESS); + + cairo_bool_t is_new; + cairo_svg_source_surface_t *source_surface; + status = _cairo_svg_surface_add_source_surface (surface, + pattern->surface, + &is_new, + &source_surface); + if (unlikely (status)) { + return status; + } + unsigned int source_id = source_surface->id; + + cairo_recording_surface_t *recording_surface = _cairo_svg_surface_to_recording_surface (pattern); + if (is_new) { + status = _cairo_svg_surface_emit_recording_surface (surface, + recording_surface, + source_id, + &source_surface->transitive_paint_used); + if (unlikely (status)) { + return status; + } + + if (source_surface->transitive_paint_used) { + cairo_svg_paint_t *paint_entry = _cairo_calloc (sizeof (cairo_svg_paint_t)); + if (paint_entry == NULL) { + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + paint_entry->source_id = source_id; + _cairo_array_init (&paint_entry->paint_elements, sizeof (cairo_svg_paint_element_t)); + _cairo_svg_paint_init_key (paint_entry); + status = _cairo_hash_table_insert (document->paints, &paint_entry->base); + if (unlikely (status)) { + return status; + } + } + } + + if (source_surface->transitive_paint_used) { + cairo_svg_paint_t paint_key; + paint_key.source_id = source_id; + _cairo_svg_paint_init_key (&paint_key); + + cairo_svg_paint_t *found_paint_entry = _cairo_hash_table_lookup (document->paints, + &paint_key.base); + assert (found_paint_entry); + + cairo_svg_paint_element_t paint_element; + paint_element.source_id = surface->source_id; + paint_element.matrix = pattern->base.matrix; + if (parent_matrix != NULL) { + cairo_matrix_t parent_matrix_inverse = *parent_matrix; + status = cairo_matrix_invert (&parent_matrix_inverse); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_STATUS_SUCCESS); + cairo_matrix_multiply (&paint_element.matrix, &parent_matrix_inverse, &paint_element.matrix); + } + status = _cairo_array_append (&found_paint_entry->paint_elements, &paint_element); + if (unlikely (status)) { + return status; + } + + surface->transitive_paint_used = TRUE; + } + + if (pattern_id != invalid_pattern_id) { + assert (!recording_surface->unbounded); + _cairo_svg_stream_printf (output, + "extents_pixels.x, + recording_surface->extents_pixels.y, + recording_surface->extents_pixels.width, + recording_surface->extents_pixels.height, + recording_surface->extents_pixels.x, + recording_surface->extents_pixels.y, + recording_surface->extents_pixels.width, + recording_surface->extents_pixels.height); + _cairo_svg_surface_emit_transform (output, "patternTransform", &p2u, parent_matrix); + _cairo_svg_stream_printf (output, ">\n"); + } + + _cairo_svg_stream_printf (output, + "\n"); + + if (pattern_id != invalid_pattern_id) { + _cairo_svg_stream_printf (output, "\n"); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_svg_surface_emit_composite_pattern (cairo_svg_stream_t *output, + cairo_svg_surface_t *surface, + cairo_surface_pattern_t *pattern, + unsigned int pattern_id, + const cairo_matrix_t *parent_matrix) +{ + if (pattern_id != invalid_pattern_id) { + assert (_cairo_svg_surface_svg_pattern_should_be_used (&pattern->base)); + } + + if (pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) { + return _cairo_svg_surface_emit_composite_recording_pattern (output, + surface, + pattern, + pattern_id, + parent_matrix); + } else { + return _cairo_svg_surface_emit_composite_surface_pattern (output, + surface, + pattern, + pattern_id, + parent_matrix); + } +} + +static cairo_status_t +_cairo_svg_surface_emit_solid_pattern (cairo_svg_surface_t *surface, + cairo_solid_pattern_t *pattern, + cairo_svg_stream_t *output, + cairo_bool_t is_stroke) +{ + _cairo_svg_stream_printf (output, + is_stroke ? " stroke=\"rgb(%f%%, %f%%, %f%%)\" stroke-opacity=\"%f\"" + : " fill=\"rgb(%f%%, %f%%, %f%%)\" fill-opacity=\"%f\"", + pattern->color.red * 100.0, + pattern->color.green * 100.0, + pattern->color.blue * 100.0, + pattern->color.alpha); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_svg_surface_emit_surface_pattern (cairo_svg_surface_t *surface, + cairo_surface_pattern_t *pattern, + cairo_svg_stream_t *output, + cairo_bool_t is_stroke, + const cairo_matrix_t *parent_matrix) +{ + cairo_svg_document_t *document = surface->document; + cairo_status_t status; + + unsigned int pattern_id = document->pattern_id++; + + status = _cairo_svg_surface_emit_composite_pattern (&document->xml_node_defs, + surface, + pattern, + pattern_id, + parent_matrix); + if (unlikely (status)) + return status; + + _cairo_svg_stream_printf (output, + is_stroke ? " stroke=\"url(#pattern-%d)\"" + : " fill=\"url(#pattern-%d)\"", + pattern_id); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_svg_surface_emit_pattern_stops (cairo_svg_stream_t *output, + const cairo_gradient_pattern_t *pattern, + double start_offset, + cairo_bool_t reverse_stops, + cairo_bool_t emulate_reflect) +{ + cairo_gradient_stop_t *stops; + unsigned int n_stops; + + if (pattern->n_stops < 1) { + return CAIRO_STATUS_SUCCESS; + } + + if (pattern->n_stops == 1) { + _cairo_svg_stream_printf (output, + "\n", + pattern->stops[0].offset, + pattern->stops[0].color.red * 100.0, + pattern->stops[0].color.green * 100.0, + pattern->stops[0].color.blue * 100.0, + pattern->stops[0].color.alpha); + return CAIRO_STATUS_SUCCESS; + } + + if (emulate_reflect || reverse_stops) { + n_stops = emulate_reflect ? pattern->n_stops * 2 - 2 : pattern->n_stops; + stops = _cairo_malloc_ab (n_stops, sizeof (cairo_gradient_stop_t)); + if (unlikely (stops == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + for (unsigned int i = 0; i < pattern->n_stops; i++) { + if (reverse_stops) { + stops[i] = pattern->stops[pattern->n_stops - i - 1]; + stops[i].offset = 1.0 - stops[i].offset; + } else { + stops[i] = pattern->stops[i]; + } + if (emulate_reflect) { + stops[i].offset *= 0.5; + if (i > 0 && i < pattern->n_stops - 1) { + if (reverse_stops) { + stops[i + pattern->n_stops - 1] = pattern->stops[i]; + stops[i + pattern->n_stops - 1].offset = 0.5 + 0.5 * stops[i + pattern->n_stops - 1].offset; + } else { + stops[i + pattern->n_stops - 1] = pattern->stops[pattern->n_stops - i - 1]; + stops[i + pattern->n_stops - 1].offset = 1.0 - 0.5 * stops[i + pattern->n_stops - 1].offset; + } + } + } + } + } else { + n_stops = pattern->n_stops; + stops = pattern->stops; + } + + if (start_offset >= 0.0) { + for (unsigned int i = 0; i < n_stops; i++) { + _cairo_svg_stream_printf (output, + "\n", + start_offset + (1.0 - start_offset) * stops[i].offset, + stops[i].color.red * 100.0, + stops[i].color.green * 100.0, + stops[i].color.blue * 100.0, + stops[i].color.alpha); + } + } else { + cairo_bool_t found = FALSE; + unsigned int offset_index; + cairo_color_stop_t offset_color_start, offset_color_stop; + + for (unsigned int i = 0; i <= n_stops; i++) { + double x1 = i == n_stops ? stops[0].offset + 1 : stops[i].offset; + cairo_color_stop_t *color1 = i == n_stops ? &stops[0].color : &stops[i].color; + if (x1 >= -start_offset) { + if (i > 0) { + double x0 = stops[i - 1].offset; + cairo_color_stop_t *color0 = &stops[i - 1].color; + if (x0 != x1) { + offset_color_start.red = color0->red + (color1->red - color0->red) + * (-start_offset - x0) / (x1 - x0); + offset_color_start.green = color0->green + (color1->green - color0->green) + * (-start_offset - x0) / (x1 - x0); + offset_color_start.blue = color0->blue + (color1->blue - color0->blue) + * (-start_offset - x0) / (x1 - x0); + offset_color_start.alpha = color0->alpha + (color1->alpha - color0->alpha) + * (-start_offset - x0) / (x1 - x0); + offset_color_stop = offset_color_start; + } else { + offset_color_stop = stops[i - 1].color; + offset_color_start = stops[i].color; + } + } else { + offset_color_stop = offset_color_start = stops[i].color; + } + offset_index = i; + found = TRUE; + break; + } + } + + if (!found) { + offset_index = n_stops - 1; + offset_color_stop = offset_color_start = stops[offset_index].color; + } + + _cairo_svg_stream_printf (output, + "\n", + offset_color_start.red * 100.0, + offset_color_start.green * 100.0, + offset_color_start.blue * 100.0, + offset_color_start.alpha); + for (unsigned int i = offset_index; i < n_stops; i++) { + _cairo_svg_stream_printf (output, + "\n", + stops[i].offset + start_offset, + stops[i].color.red * 100.0, + stops[i].color.green * 100.0, + stops[i].color.blue * 100.0, + stops[i].color.alpha); + } + for (unsigned int i = 0; i < offset_index; i++) { + _cairo_svg_stream_printf (output, + "\n", + 1.0 + stops[i].offset + start_offset, + stops[i].color.red * 100.0, + stops[i].color.green * 100.0, + stops[i].color.blue * 100.0, + stops[i].color.alpha); + } + + _cairo_svg_stream_printf (output, + "\n", + offset_color_stop.red * 100.0, + offset_color_stop.green * 100.0, + offset_color_stop.blue * 100.0, + offset_color_stop.alpha); + + } + + if (reverse_stops || emulate_reflect) { + free (stops); + } + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_svg_surface_emit_pattern_extend (cairo_svg_stream_t *output, + cairo_pattern_t *pattern) +{ + switch (pattern->extend) { + case CAIRO_EXTEND_REPEAT: + _cairo_svg_stream_printf (output, " spreadMethod=\"repeat\""); + break; + case CAIRO_EXTEND_REFLECT: + _cairo_svg_stream_printf (output, " spreadMethod=\"reflect\""); + break; + case CAIRO_EXTEND_NONE: + case CAIRO_EXTEND_PAD: + break; + } +} + +static cairo_status_t +_cairo_svg_surface_emit_linear_pattern (cairo_svg_surface_t *surface, + cairo_linear_pattern_t *pattern, + cairo_svg_stream_t *output, + cairo_bool_t is_stroke, + const cairo_matrix_t *parent_matrix) +{ + cairo_status_t status; + cairo_svg_document_t *document = surface->document; + + cairo_matrix_t p2u = pattern->base.base.matrix; + status = cairo_matrix_invert (&p2u); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_STATUS_SUCCESS); + + unsigned int linear_pattern_id = document->linear_pattern_id++; + + _cairo_svg_stream_printf (&document->xml_node_defs, + "pd1.x, pattern->pd1.y, + pattern->pd2.x, pattern->pd2.y); + + _cairo_svg_surface_emit_pattern_extend (&document->xml_node_defs, &pattern->base.base); + _cairo_svg_surface_emit_transform (&document->xml_node_defs, "gradientTransform", &p2u, parent_matrix); + _cairo_svg_stream_printf (&document->xml_node_defs, ">\n"); + + status = _cairo_svg_surface_emit_pattern_stops (&document->xml_node_defs, + &pattern->base, + 0.0, + FALSE, + FALSE); + if (unlikely (status)) + return status; + + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n"); + + _cairo_svg_stream_printf (output, + is_stroke ? " stroke=\"url(#linear-pattern-%d)\"" + : " fill=\"url(#linear-pattern-%d)\"", + linear_pattern_id); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_svg_surface_emit_radial_pattern (cairo_svg_surface_t *surface, + cairo_radial_pattern_t *pattern, + cairo_svg_stream_t *output, + cairo_bool_t is_stroke, + const cairo_matrix_t *parent_matrix) +{ + cairo_status_t status; + cairo_svg_document_t *document = surface->document; + + cairo_extend_t extend = pattern->base.base.extend; + + cairo_bool_t reverse_stops; + cairo_circle_double_t *c0, *c1; + if (pattern->cd1.radius < pattern->cd2.radius) { + c0 = &pattern->cd1; + c1 = &pattern->cd2; + reverse_stops = FALSE; + } else { + c0 = &pattern->cd2; + c1 = &pattern->cd1; + reverse_stops = TRUE; + } + + double x0 = c0->center.x; + double y0 = c0->center.y; + double r0 = c0->radius; + double x1 = c1->center.x; + double y1 = c1->center.y; + double r1 = c1->radius; + + cairo_matrix_t p2u = pattern->base.base.matrix; + status = cairo_matrix_invert (&p2u); + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_STATUS_SUCCESS); + + unsigned int radial_pattern_id = document->radial_pattern_id++; + + double start_offset; + cairo_bool_t emulate_reflect = FALSE; + + double fx = (r1 * x0 - r0 * x1) / (r1 - r0); + double fy = (r1 * y0 - r0 * y1) / (r1 - r0); + + /* SVG doesn't support the inner circle and use instead a gradient focal. + * That means we need to emulate the cairo behaviour by processing the + * cairo gradient stops. + * The CAIRO_EXTEND_NONE and CAIRO_EXTEND_PAD modes are quite easy to handle, + * it's just a matter of stop position translation and calculation of + * the corresponding SVG radial gradient focal. + * The CAIRO_EXTEND_REFLECT and CAIRO_EXTEND_REPEAT modes require to compute a new + * radial gradient, with an new outer circle, equal to r1 - r0 in the CAIRO_EXTEND_REPEAT + * case, and 2 * r1 - r0 in the CAIRO_EXTEND_REFLECT case, and a new gradient stop + * list that maps to the original cairo stop list. + */ + if ((extend == CAIRO_EXTEND_REFLECT || extend == CAIRO_EXTEND_REPEAT) && r0 > 0.0) { + double r_org = r1; + + if (extend == CAIRO_EXTEND_REFLECT) { + r1 = 2.0 * r1 - r0; + emulate_reflect = TRUE; + } + + start_offset = fmod (r1, r1 - r0) / (r1 - r0) - 1.0; + double r = r1 - r0; + + /* New position of outer circle. */ + double x = r * (x1 - fx) / r_org + fx; + double y = r * (y1 - fy) / r_org + fy; + + x1 = x; + y1 = y; + r1 = r; + r0 = 0.0; + } else { + start_offset = r0 / r1; + } + + _cairo_svg_stream_printf (&document->xml_node_defs, + "xml_node_defs, " spreadMethod=\"repeat\""); + } else { + _cairo_svg_surface_emit_pattern_extend (&document->xml_node_defs, &pattern->base.base); + } + _cairo_svg_surface_emit_transform (&document->xml_node_defs, "gradientTransform", &p2u, parent_matrix); + _cairo_svg_stream_printf (&document->xml_node_defs, ">\n"); + + /* To support cairo's EXTEND_NONE, (for which SVG has no similar + * notion), we add transparent color stops on either end of the + * user-provided stops. */ + if (extend == CAIRO_EXTEND_NONE) { + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n"); + if (r0 != 0.0) { + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + r0 / r1); + } + } + status = _cairo_svg_surface_emit_pattern_stops (&document->xml_node_defs, + &pattern->base, + start_offset, + reverse_stops, + emulate_reflect); + if (unlikely (status)) { + return status; + } + + if (pattern->base.base.extend == CAIRO_EXTEND_NONE) { + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n"); + } + + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n"); + + _cairo_svg_stream_printf (output, + is_stroke ? " stroke=\"url(#radial-pattern-%d)\"" + : " fill=\"url(#radial-pattern-%d)\"", + radial_pattern_id); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_svg_surface_emit_pattern (cairo_svg_surface_t *surface, + const cairo_pattern_t *pattern, + cairo_svg_stream_t *output, + cairo_bool_t is_stroke, + const cairo_matrix_t *parent_matrix) +{ + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + return _cairo_svg_surface_emit_solid_pattern (surface, (cairo_solid_pattern_t *) pattern, + output, is_stroke); + + case CAIRO_PATTERN_TYPE_SURFACE: + return _cairo_svg_surface_emit_surface_pattern (surface, (cairo_surface_pattern_t *) pattern, + output, is_stroke, parent_matrix); + + case CAIRO_PATTERN_TYPE_LINEAR: + return _cairo_svg_surface_emit_linear_pattern (surface, (cairo_linear_pattern_t *) pattern, + output, is_stroke, parent_matrix); + + case CAIRO_PATTERN_TYPE_RADIAL: + return _cairo_svg_surface_emit_radial_pattern (surface, (cairo_radial_pattern_t *) pattern, + output, is_stroke, parent_matrix); + + case CAIRO_PATTERN_TYPE_MESH: + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + ASSERT_NOT_REACHED; + } + return _cairo_error (CAIRO_STATUS_PATTERN_TYPE_MISMATCH); +} + +static cairo_status_t +_cairo_svg_surface_emit_fill_style (cairo_svg_stream_t *output, + cairo_svg_surface_t *surface, + const cairo_pattern_t *source, + cairo_fill_rule_t fill_rule, + const cairo_matrix_t *parent_matrix) +{ + _cairo_svg_stream_printf (output, + " fill-rule=\"%s\"", + fill_rule == CAIRO_FILL_RULE_EVEN_ODD ? "evenodd" : "nonzero"); + return _cairo_svg_surface_emit_pattern (surface, source, output, FALSE, parent_matrix); +} + +static cairo_status_t +_cairo_svg_surface_emit_stroke_style (cairo_svg_stream_t *output, + cairo_svg_surface_t *surface, + const cairo_pattern_t *source, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *parent_matrix) +{ + cairo_status_t status; + const char *line_cap, *line_join; + unsigned int i; + + switch (stroke_style->line_cap) { + case CAIRO_LINE_CAP_BUTT: + line_cap = "butt"; + break; + case CAIRO_LINE_CAP_ROUND: + line_cap = "round"; + break; + case CAIRO_LINE_CAP_SQUARE: + line_cap = "square"; + break; + default: + ASSERT_NOT_REACHED; + } + + switch (stroke_style->line_join) { + case CAIRO_LINE_JOIN_MITER: + line_join = "miter"; + break; + case CAIRO_LINE_JOIN_ROUND: + line_join = "round"; + break; + case CAIRO_LINE_JOIN_BEVEL: + line_join = "bevel"; + break; + default: + ASSERT_NOT_REACHED; + } + + if (stroke_style->is_hairline) { + _cairo_svg_stream_printf (output, + " stroke-width=\"1px\"" + " stroke-linecap=\"%s\"" + " stroke-linejoin=\"%s\"" + " style=\"vector-effect: non-scaling-stroke\"", + line_cap, + line_join); + } else { + _cairo_svg_stream_printf (output, + " stroke-width=\"%f\"" + " stroke-linecap=\"%s\"" + " stroke-linejoin=\"%s\"", + stroke_style->line_width, + line_cap, + line_join); + } + + status = _cairo_svg_surface_emit_pattern (surface, source, output, TRUE, parent_matrix); + if (unlikely (status)) { + return status; + } + + if (stroke_style->num_dashes > 0) { + _cairo_svg_stream_printf (output, " stroke-dasharray=\""); + for (i = 0; i < stroke_style->num_dashes; i++) { + _cairo_svg_stream_printf (output, + "%f", + stroke_style->dash[i]); + _cairo_svg_stream_printf (output, i + 1 < stroke_style->num_dashes ? " " : "\""); + } + if (stroke_style->dash_offset != 0.0) { + _cairo_svg_stream_printf (output, + " stroke-dashoffset=\"%f\"", + stroke_style->dash_offset); + } + } + + _cairo_svg_stream_printf (output, + " stroke-miterlimit=\"%f\"", + stroke_style->miter_limit); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_cairo_svg_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle) +{ + cairo_svg_surface_t *surface = abstract_surface; + + rectangle->x = 0; + rectangle->y = 0; + + /* XXX: The conversion to integers here is pretty bogus, (not to + * mention the arbitrary limitation of width to a short(!). We + * may need to come up with a better interface for get_size. + */ + rectangle->width = ceil (surface->width); + rectangle->height = ceil (surface->height); + + return surface->surface_bounded; +} + +static cairo_status_t +_cairo_svg_surface_emit_paint (cairo_svg_stream_t *output, + cairo_svg_surface_t *surface, + const cairo_pattern_t *source, + cairo_bool_t at_origin) +{ + cairo_status_t status; + + if (_cairo_svg_surface_svg_clip_or_svg_mask_should_be_used (source)) { + return _cairo_svg_surface_emit_composite_pattern (output, + surface, + (cairo_surface_pattern_t *) source, + invalid_pattern_id, + NULL); + } + + surface->transitive_paint_used = TRUE; + + _cairo_svg_stream_printf (output, "source_id, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_RECTANGLE_AT_ORIGIN); + } else { + _cairo_svg_stream_append_paint_dependent (output, + surface->source_id, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_RECTANGLE); + } + status = _cairo_svg_surface_emit_pattern (surface, source, output, FALSE, NULL); + if (unlikely (status)) { + return status; + } + _cairo_svg_stream_printf (output, "/>\n"); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_svg_surface_do_operator (cairo_svg_stream_t *output, + cairo_svg_surface_t *surface, + cairo_operator_t op, + const cairo_clip_t *clip, + cairo_svg_stream_t *mask_stream, + cairo_svg_stream_t *source_stream, + cairo_svg_stream_t *destination_stream) +{ + cairo_status_t status; + cairo_svg_document_t *document = surface->document; + + // For operators that do not always produce opaque output, we first need to emit a black paint + // if the content does not have alpha + if (surface->base.content == CAIRO_CONTENT_COLOR && (op == CAIRO_OPERATOR_CLEAR || + op == CAIRO_OPERATOR_SOURCE || + op == CAIRO_OPERATOR_IN || + op == CAIRO_OPERATOR_OUT || + op == CAIRO_OPERATOR_DEST_IN || + op == CAIRO_OPERATOR_DEST_OUT || + op == CAIRO_OPERATOR_DEST_ATOP || + op == CAIRO_OPERATOR_XOR)) { + _cairo_svg_surface_emit_paint (output, surface, &_cairo_pattern_black.base, FALSE); + } + + if (op == CAIRO_OPERATOR_CLEAR) { + /* + * The result is the same as one of the SOURCE operation application with the same arguments, + * but with an empty source. + */ + + status = _cairo_svg_stream_destroy (source_stream); + if (unlikely (status)) { + (void) _cairo_svg_stream_destroy (destination_stream); + (void) _cairo_svg_stream_destroy (mask_stream); + return status; + } + cairo_svg_stream_t empty_stream = _cairo_svg_stream_create (); + return _cairo_svg_surface_do_operator (output, + surface, + CAIRO_OPERATOR_SOURCE, + clip, + mask_stream, + &empty_stream, + destination_stream); + } + + if (op == CAIRO_OPERATOR_SOURCE) { + /* + * Below we use the "Bounded" equation with SOURCE as the operation from the "Clipping and masking" section + * of https://cairographics.org/operators/: + * result = source LEPR_(clip IN mask) destination + * + * It is equivalent to: + * result = (source IN (clip IN mask)) ADD (destination IN (NOT (clip IN mask))) + * + * 1. We put the clip masked with the mask into the SVG group `lerp_compositing_group`. + * 2. `positive_lerp_mask` is an SVG mask with `lerp_compositing_group`. + * 3. `negative_lerp_mask` is an SVG mask with inverted `lerp_compositing_group`. + * 5. We put the source masked with `positive_lerp_mask` into the SVG group `lerped_source_compositing_group`. + * 6. We put the destination masked with `negative_lerp_mask` into + * the SVG group `lerped_destination_compositing_group`. + * 7. The result is addition of `lerped_source_compositing_group` and `lerped_destination_compositing_group`. + */ + + unsigned int lerp_compositing_group_id = document->compositing_group_id++; + _cairo_svg_stream_printf (&document->xml_node_defs, + "xml_node_defs, + surface->source_id, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_INVERSE_TRANSLATION); + _cairo_svg_stream_printf (&document->xml_node_defs, ">\n"); + _cairo_svg_surface_emit_paint (&document->xml_node_defs, surface, &_cairo_pattern_clear.base, FALSE); + status = _cairo_svg_surface_set_clip (surface, &document->xml_node_defs, clip); + if (unlikely (status)) { + (void) _cairo_svg_stream_destroy (destination_stream); + (void) _cairo_svg_stream_destroy (source_stream); + (void) _cairo_svg_stream_destroy (mask_stream); + return status; + } + _cairo_svg_stream_copy (mask_stream, &document->xml_node_defs); + status = _cairo_svg_stream_destroy (mask_stream); + if (unlikely (status)) { + (void) _cairo_svg_stream_destroy (destination_stream); + (void) _cairo_svg_stream_destroy (source_stream); + return status; + } + _cairo_svg_surface_reset_clip (surface); + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + unsigned int positive_lerp_mask_id = document->mask_id++; + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + positive_lerp_mask_id); + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + lerp_compositing_group_id); + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + unsigned int negative_lerp_mask_id = document->mask_id++; + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + negative_lerp_mask_id); + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + lerp_compositing_group_id, + _cairo_svg_surface_emit_static_filter (document, + CAIRO_SVG_FILTER_REMOVE_COLOR_AND_INVERT_ALPHA)); + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + unsigned int lerped_source_compositing_group_id = document->compositing_group_id++; + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + lerped_source_compositing_group_id, + positive_lerp_mask_id); + _cairo_svg_stream_printf (&document->xml_node_defs, "xml_node_defs, + surface->source_id, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_INVERSE_TRANSLATION); + _cairo_svg_stream_printf (&document->xml_node_defs, ">\n"); + _cairo_svg_stream_copy (source_stream, &document->xml_node_defs); + status = _cairo_svg_stream_destroy (source_stream); + if (unlikely (status)) { + (void) _cairo_svg_stream_destroy (destination_stream); + return status; + } + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + unsigned int lerped_destination_compositing_group_id = document->compositing_group_id++; + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + lerped_destination_compositing_group_id, + negative_lerp_mask_id); + _cairo_svg_stream_printf (&document->xml_node_defs, "xml_node_defs, + surface->source_id, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_INVERSE_TRANSLATION); + _cairo_svg_stream_printf (&document->xml_node_defs, ">\n"); + _cairo_svg_stream_copy (destination_stream, &document->xml_node_defs); + status = _cairo_svg_stream_destroy (destination_stream); + if (unlikely (status)) { + return status; + } + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + _cairo_svg_stream_printf (&surface->xml_node, + "xml_node, + surface->source_id, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_TRANSLATION); + _cairo_svg_stream_printf (&surface->xml_node, ">\n"); + status = _cairo_svg_surface_emit_paint (&surface->xml_node, surface, &_cairo_pattern_black.base, TRUE); + if (unlikely (status)) { + return status; + } + _cairo_svg_stream_printf (&surface->xml_node, "\n"); + + return CAIRO_STATUS_SUCCESS; + } + + if (op == CAIRO_OPERATOR_DEST) { + /* + * The result is the destination. + */ + + _cairo_svg_stream_copy (destination_stream, &surface->xml_node); + status = _cairo_svg_stream_destroy (destination_stream); + if (unlikely (status)) { + (void) _cairo_svg_stream_destroy (source_stream); + (void) _cairo_svg_stream_destroy (mask_stream); + return status; + } + status = _cairo_svg_stream_destroy (source_stream); + if (unlikely (status)) { + (void) _cairo_svg_stream_destroy (source_stream); + return status; + } + status = _cairo_svg_stream_destroy (source_stream); + if (unlikely (status)) { + return status; + } + return CAIRO_STATUS_SUCCESS; + } + + /* + * Below we use the "XRender" equation from the "Clipping and masking" section + * of https://cairographics.org/operators/: + * result = ((source IN mask) OP destination) LERP_clip destination + * + * It is equivalent to: + * result = (((source IN mask) OP destination) IN clip) ADD (destination IN (NOT clip)) + * + * 1. We put the clip into the SVG group `lerp_compositing_group`. + * 2. `positive_lerp_mask` is an SVG mask with `lerp_compositing_group`. + * 3. `negative_lerp_mask` is an SVG mask with inverted `lerp_compositing_group`. + * 4. We put the mask into the SVG mask `mask_mask`. + * 5. We put the source masked with `mask_mask` into the SVG group `masked_source_compositing_group`. + * 6. We put the destination into the SVG group `destination_compositing_group`. + * 7. `lerped_operation_compositing_group` is an SVG group of operation applied to + * (`masked_source_compositing_group`, `destination_compositing_group`) + * masked with `positive_lerp_mask`. + * 8. `lerped_destination_compositing_group` is an SVG group of `destination_compositing_group` + * masked with `negative_lerp_mask`. + * 9. The result is addition of `lerped_operation_compositing_group` and `lerped_destination_compositing_group`. + */ + + unsigned int lerp_compositing_group_id = document->compositing_group_id++; + _cairo_svg_stream_printf (&document->xml_node_defs, + "xml_node_defs, + surface->source_id, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_INVERSE_TRANSLATION); + _cairo_svg_stream_printf (&document->xml_node_defs, ">\n"); + _cairo_svg_surface_emit_paint (&document->xml_node_defs, surface, &_cairo_pattern_clear.base, FALSE); + status = _cairo_svg_surface_set_clip (surface, &document->xml_node_defs, clip); + if (unlikely (status)) { + (void) _cairo_svg_stream_destroy (destination_stream); + (void) _cairo_svg_stream_destroy (source_stream); + (void) _cairo_svg_stream_destroy (mask_stream); + return status; + } + status = _cairo_svg_surface_emit_paint (&document->xml_node_defs, surface, &_cairo_pattern_white.base, FALSE); + if (unlikely (status)) { + (void) _cairo_svg_stream_destroy (destination_stream); + (void) _cairo_svg_stream_destroy (source_stream); + (void) _cairo_svg_stream_destroy (mask_stream); + return status; + } + _cairo_svg_surface_reset_clip (surface); + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + unsigned int positive_lerp_mask_id = document->mask_id++; + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + positive_lerp_mask_id); + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + lerp_compositing_group_id); + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + unsigned int negative_lerp_mask_id = document->mask_id++; + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + negative_lerp_mask_id); + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + lerp_compositing_group_id, + _cairo_svg_surface_emit_static_filter (document, + CAIRO_SVG_FILTER_REMOVE_COLOR_AND_INVERT_ALPHA)); + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + unsigned int mask_mask_id = document->mask_id++; + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + mask_mask_id); + _cairo_svg_stream_printf (&document->xml_node_defs, "xml_node_defs, + surface->source_id, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_INVERSE_TRANSLATION); + _cairo_svg_stream_printf (&document->xml_node_defs, ">\n"); + _cairo_svg_stream_copy (mask_stream, &document->xml_node_defs); + status = _cairo_svg_stream_destroy (mask_stream); + if (unlikely (status)) { + (void) _cairo_svg_stream_destroy (source_stream); + (void) _cairo_svg_stream_destroy (destination_stream); + return status; + } + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + unsigned int masked_source_compositing_group_id = document->compositing_group_id++; + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + masked_source_compositing_group_id, + mask_mask_id); + _cairo_svg_stream_printf (&document->xml_node_defs, "xml_node_defs, + surface->source_id, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_INVERSE_TRANSLATION); + _cairo_svg_stream_printf (&document->xml_node_defs, ">\n"); + _cairo_svg_stream_copy (source_stream, &document->xml_node_defs); + status = _cairo_svg_stream_destroy (source_stream); + if (unlikely (status)) { + (void) _cairo_svg_stream_destroy (destination_stream); + return status; + } + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + unsigned int destination_compositing_group_id = document->compositing_group_id++; + _cairo_svg_stream_printf (&document->xml_node_defs, + "xml_node_defs, + surface->source_id, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_INVERSE_TRANSLATION); + _cairo_svg_stream_printf (&document->xml_node_defs, ">\n"); + _cairo_svg_stream_copy (destination_stream, &document->xml_node_defs); + status = _cairo_svg_stream_destroy (destination_stream); + if (unlikely (status)) { + return status; + } + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + unsigned int lerped_operation_compositing_group_id = document->compositing_group_id++; + _cairo_svg_stream_printf (&document->xml_node_defs, + "xml_node_defs, + " filter=\"url(#filter-%d)\" mask=\"url(#mask-%d)\">\n", + filter_id, + positive_lerp_mask_id); + status = _cairo_svg_surface_emit_paint (&document->xml_node_defs, surface, &_cairo_pattern_black.base, TRUE); + if (unlikely (status)) { + return status; + } + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + unsigned int lerped_destination_compositing_group_id = document->compositing_group_id++; + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + lerped_destination_compositing_group_id, + negative_lerp_mask_id); + _cairo_svg_stream_printf (&document->xml_node_defs, + "\n", + destination_compositing_group_id); + _cairo_svg_stream_printf (&document->xml_node_defs, "\n"); + + _cairo_svg_stream_printf (&surface->xml_node, + "xml_node, + surface->source_id, + CAIRO_SVG_STREAM_PAINT_DEPENDENT_ELEMENT_TYPE_TRANSLATION); + _cairo_svg_stream_printf (&surface->xml_node, ">\n"); + status = _cairo_svg_surface_emit_paint (&surface->xml_node, surface, &_cairo_pattern_black.base, TRUE); + if (unlikely (status)) { + return status; + } + _cairo_svg_stream_printf (&surface->xml_node, "\n"); + + return CAIRO_STATUS_SUCCESS; +} + +#define _CAIRO_SVG_SURFACE_CALL_OPERATOR_IMPL(OPERATOR_IMPL, SOURCE, ...) \ + if (op == CAIRO_OPERATOR_OVER) { \ + status = _cairo_svg_surface_set_clip (surface, &surface->xml_node, clip); \ + if (unlikely (status)) { \ + return status; \ + } \ + return OPERATOR_IMPL (&surface->xml_node, surface, SOURCE, ## __VA_ARGS__); \ + } else { \ + _cairo_svg_surface_reset_clip (surface); \ + cairo_svg_stream_t mask_stream = _cairo_svg_stream_create (); \ + status = OPERATOR_IMPL (&mask_stream, surface, &_cairo_pattern_white.base, ## __VA_ARGS__); \ + if (unlikely (status)) { \ + (void) _cairo_svg_stream_destroy (&mask_stream); \ + return status; \ + } \ + cairo_svg_stream_t source_stream = _cairo_svg_stream_create (); \ + status = _cairo_svg_surface_emit_paint (&source_stream, \ + surface, \ + SOURCE, \ + FALSE); \ + if (unlikely (status)) { \ + (void) _cairo_svg_stream_destroy (&source_stream); \ + (void) _cairo_svg_stream_destroy (&mask_stream); \ + return status; \ + } \ + cairo_svg_stream_t destination_stream = surface->xml_node; \ + surface->xml_node = _cairo_svg_stream_create (); \ + return _cairo_svg_surface_do_operator (&surface->xml_node, \ + surface, \ + op, \ + clip, \ + &mask_stream, \ + &source_stream, \ + &destination_stream); \ + } + +static cairo_int_status_t +_cairo_svg_surface_paint_impl (cairo_svg_stream_t *output, + cairo_svg_surface_t *surface, + const cairo_pattern_t *source) +{ + return _cairo_svg_surface_emit_paint (output, surface, source, FALSE); +} + +static cairo_int_status_t +_cairo_svg_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_svg_surface_t *surface = abstract_surface; + + /* Emulation of clear and source operators, when no clipping region + * is defined. We just delete existing content of surface root node, + * and exit early if operator is clear. + */ + if ((op == CAIRO_OPERATOR_CLEAR || op == CAIRO_OPERATOR_SOURCE) && clip == NULL) { + switch (surface->paginated_mode) { + case CAIRO_PAGINATED_MODE_ANALYZE: + return CAIRO_STATUS_SUCCESS; + case CAIRO_PAGINATED_MODE_RENDER: + status = _cairo_svg_stream_destroy (&surface->xml_node); + if (unlikely (status)) { + return status; + } + + surface->xml_node = _cairo_svg_stream_create (); + + if (op == CAIRO_OPERATOR_CLEAR) { + return CAIRO_STATUS_SUCCESS; + } + break; + case CAIRO_PAGINATED_MODE_FALLBACK: + ASSERT_NOT_REACHED; + } + } else if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + return _cairo_svg_surface_are_operation_and_pattern_supported (surface, op, source) + ? CAIRO_STATUS_SUCCESS + : CAIRO_INT_STATUS_UNSUPPORTED; + } + + _CAIRO_SVG_SURFACE_CALL_OPERATOR_IMPL (_cairo_svg_surface_paint_impl, + source) +} + +static cairo_int_status_t +_cairo_svg_surface_mask_impl (cairo_svg_stream_t *output, + cairo_svg_surface_t *surface, + const cairo_pattern_t *source, + const cairo_pattern_t *mask) +{ + cairo_status_t status; + cairo_svg_document_t *document = surface->document; + + /* _cairo_svg_surface_emit_paint() will output a pattern definition to + * document->xml_node_defs so we need to write the mask element to + * a temporary stream and then copy that to xml_node_defs. */ + cairo_svg_stream_t temporary_stream = _cairo_svg_stream_create (); + + unsigned int mask_id = document->mask_id++; + + _cairo_svg_stream_printf (&temporary_stream, + "\n", + mask_id); + _cairo_svg_stream_printf (&temporary_stream, + "\n", + _cairo_svg_surface_emit_static_filter (document, CAIRO_SVG_FILTER_REMOVE_COLOR)); + status = _cairo_svg_surface_emit_paint (&temporary_stream, surface, mask, FALSE); + if (unlikely (status)) { + (void) _cairo_svg_stream_destroy (&temporary_stream); + return status; + } + _cairo_svg_stream_printf (&temporary_stream, "\n"); + _cairo_svg_stream_printf (&temporary_stream, "\n"); + + _cairo_svg_stream_copy (&temporary_stream, &document->xml_node_defs); + + status = _cairo_svg_stream_destroy (&temporary_stream); + if (unlikely (status)) { + return status; + } + + _cairo_svg_stream_printf (output, + "\n", + mask_id); + + status = _cairo_svg_surface_emit_paint (output, surface, source, FALSE); + if (unlikely (status)) { + return status; + } + + _cairo_svg_stream_printf (output, "\n"); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_svg_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_status_t status; + cairo_svg_surface_t *surface = abstract_surface; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + return _cairo_svg_surface_are_operation_and_pattern_supported (surface, op, source) && + _cairo_svg_surface_are_operation_and_pattern_supported (surface, op, mask) + ? CAIRO_STATUS_SUCCESS + : CAIRO_INT_STATUS_UNSUPPORTED; + } + + _CAIRO_SVG_SURFACE_CALL_OPERATOR_IMPL (_cairo_svg_surface_mask_impl, + source, + mask) +} + +static cairo_int_status_t +_cairo_svg_surface_stroke_impl (cairo_svg_stream_t *output, + cairo_svg_surface_t *surface, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_status_t status; + + cairo_bool_t svg_clip_or_svg_mask_should_be_used = _cairo_svg_surface_svg_clip_or_svg_mask_should_be_used (source); + unsigned int mask_id; + cairo_svg_stream_t *output_stream = output; + if (svg_clip_or_svg_mask_should_be_used) { + mask_id = surface->document->mask_id++; + + output_stream = &surface->document->xml_node_defs; + + _cairo_svg_stream_printf (output_stream, + "\n", + mask_id); + } + + _cairo_svg_stream_printf (output_stream, "\n"); + + if (svg_clip_or_svg_mask_should_be_used) { + _cairo_svg_stream_printf (output_stream, "\n"); + + _cairo_svg_stream_printf (output, + "\n", + mask_id); + + status = _cairo_svg_surface_emit_composite_pattern (output, + surface, + (cairo_surface_pattern_t *) source, + invalid_pattern_id, + NULL); + if (unlikely (status)) { + return status; + } + + _cairo_svg_stream_printf (output, "\n"); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_svg_surface_stroke (void *abstract_dst, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_svg_surface_t *surface = abstract_dst; + cairo_status_t status; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + return _cairo_svg_surface_are_operation_and_pattern_supported (surface, op, source) + ? CAIRO_STATUS_SUCCESS + : CAIRO_INT_STATUS_UNSUPPORTED; + } + + _CAIRO_SVG_SURFACE_CALL_OPERATOR_IMPL (_cairo_svg_surface_stroke_impl, + source, + path, + stroke_style, + ctm, + ctm_inverse, + tolerance, + antialias) +} + +static cairo_int_status_t +_cairo_svg_surface_fill_impl (cairo_svg_stream_t *output, + cairo_svg_surface_t *surface, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_status_t status; + + if (_cairo_svg_surface_svg_clip_or_svg_mask_should_be_used (source)) { + _cairo_svg_stream_printf (&surface->document->xml_node_defs, + "\n", + surface->document->clip_id); + + _cairo_svg_stream_printf (&surface->document->xml_node_defs, + "document->xml_node_defs, path, NULL); + _cairo_svg_stream_printf (&surface->document->xml_node_defs, "/>\n"); + + _cairo_svg_stream_printf (&surface->document->xml_node_defs, "\n"); + + _cairo_svg_stream_printf (output, + "\n", + surface->document->clip_id++); + + status = _cairo_svg_surface_emit_composite_pattern (output, + surface, + (cairo_surface_pattern_t *) source, + invalid_pattern_id, + NULL); + if (unlikely (status)) { + return status; + } + + _cairo_svg_stream_printf (output, ""); + } else { + _cairo_svg_stream_printf (output, "\n"); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_svg_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_svg_surface_t *surface = abstract_surface; + cairo_status_t status; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + return _cairo_svg_surface_are_operation_and_pattern_supported (surface, op, source) + ? CAIRO_STATUS_SUCCESS + : CAIRO_INT_STATUS_UNSUPPORTED; + } + + _CAIRO_SVG_SURFACE_CALL_OPERATOR_IMPL (_cairo_svg_surface_fill_impl, + source, + path, + fill_rule, + tolerance, + antialias) +} + +static cairo_int_status_t +_cairo_svg_surface_fill_stroke (void *abstract_surface, + cairo_operator_t fill_op, + const cairo_pattern_t *fill_source, + cairo_fill_rule_t fill_rule, + double fill_tolerance, + cairo_antialias_t fill_antialias, + const cairo_path_fixed_t *path, + cairo_operator_t stroke_op, + const cairo_pattern_t *stroke_source, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *stroke_ctm, + const cairo_matrix_t *stroke_ctm_inverse, + double stroke_tolerance, + cairo_antialias_t stroke_antialias, + const cairo_clip_t *clip) +{ + cairo_svg_surface_t *surface = abstract_surface; + cairo_status_t status; + + if (_cairo_svg_surface_svg_clip_or_svg_mask_should_be_used (fill_source) || + _cairo_svg_surface_svg_clip_or_svg_mask_should_be_used (stroke_source) || + fill_op != CAIRO_OPERATOR_OVER || + stroke_op != CAIRO_OPERATOR_OVER) { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + return _cairo_svg_surface_are_operation_and_pattern_supported (surface, fill_op, fill_source) + && _cairo_svg_surface_are_operation_and_pattern_supported (surface, stroke_op, stroke_source) + ? CAIRO_STATUS_SUCCESS + : CAIRO_INT_STATUS_UNSUPPORTED; + } + + status = _cairo_svg_surface_set_clip (surface, &surface->xml_node, clip); + if (unlikely (status)) { + return status; + } + + _cairo_svg_stream_printf (&surface->xml_node, "xml_node, surface, + fill_source, fill_rule, stroke_ctm_inverse); + if (unlikely (status)) { + return status; + } + + status = _cairo_svg_surface_emit_stroke_style (&surface->xml_node, surface, + stroke_source, stroke_style, stroke_ctm_inverse); + if (unlikely (status)) { + return status; + } + + _cairo_svg_surface_emit_path (&surface->xml_node, path, stroke_ctm_inverse); + + _cairo_svg_surface_emit_transform (&surface->xml_node, "transform", stroke_ctm, NULL); + + _cairo_svg_stream_printf (&surface->xml_node, "/>\n"); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_svg_surface_show_glyphs_impl (cairo_svg_stream_t *output, + cairo_svg_surface_t *surface, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font) +{ + cairo_status_t status; + cairo_svg_document_t *document = surface->document; + + if (num_glyphs <= 0) { + return CAIRO_STATUS_SUCCESS; + } + + /* FIXME it's probably possible to apply a source of a gradient to + * a group of symbols, but I don't know how yet. Gradients or patterns + * are translated by x and y properties of use element. */ + if (source->type != CAIRO_PATTERN_TYPE_SOLID) { + goto fallback; + } + + _cairo_svg_stream_printf (output, "\n"); + + for (int i = 0; i < num_glyphs; i++) { + cairo_scaled_font_subsets_glyph_t subset_glyph; + + status = _cairo_scaled_font_subsets_map_glyph (document->font_subsets, + scaled_font, + glyphs[i].index, + NULL, + 0, + &subset_glyph); + if ((cairo_int_status_t) status == CAIRO_INT_STATUS_UNSUPPORTED) { + _cairo_svg_stream_printf (output, "\n"); + + glyphs += i; + num_glyphs -= i; + goto fallback; + } + + if (unlikely (status)) { + return status; + } + + _cairo_svg_stream_printf (output, + "\n", + subset_glyph.font_id, + subset_glyph.subset_glyph_index, + glyphs[i].x, glyphs[i].y); + } + + _cairo_svg_stream_printf (output, "\n"); + + return CAIRO_STATUS_SUCCESS; + + fallback:; + cairo_path_fixed_t path; + + _cairo_path_fixed_init (&path); + + status = _cairo_scaled_font_glyph_path (scaled_font, + (cairo_glyph_t *) glyphs, + num_glyphs, &path); + if (unlikely (status)) { + _cairo_path_fixed_fini (&path); + return status; + } + + status = _cairo_svg_surface_fill_impl (output, + surface, + source, + &path, + CAIRO_FILL_RULE_WINDING, + 0.0, + CAIRO_ANTIALIAS_DEFAULT); + + _cairo_path_fixed_fini (&path); + + return status; +} + +static cairo_int_status_t +_cairo_svg_surface_show_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_svg_surface_t *surface = abstract_surface; + cairo_int_status_t status; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + return _cairo_svg_surface_are_operation_and_pattern_supported (surface, op, source) + ? CAIRO_STATUS_SUCCESS + : CAIRO_INT_STATUS_UNSUPPORTED; + } + + _CAIRO_SVG_SURFACE_CALL_OPERATOR_IMPL (_cairo_svg_surface_show_glyphs_impl, + source, + glyphs, + num_glyphs, + scaled_font) +} + +static void +_cairo_svg_surface_get_font_options (void *abstract_surface, + cairo_font_options_t *options) +{ + _cairo_font_options_init_default (options); + + cairo_font_options_set_hint_style (options, CAIRO_HINT_STYLE_NONE); + cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_OFF); + cairo_font_options_set_antialias (options, CAIRO_ANTIALIAS_GRAY); + _cairo_font_options_set_round_glyph_positions (options, CAIRO_ROUND_GLYPH_POS_OFF); +} + + +static const char ** +_cairo_svg_surface_get_supported_mime_types (void *abstract_surface) +{ + return _cairo_svg_supported_mime_types; +} + +static const cairo_surface_backend_t cairo_svg_surface_backend = { + CAIRO_SURFACE_TYPE_SVG, + _cairo_svg_surface_finish, + + _cairo_default_context_create, + + NULL, /* create_similar: handled by wrapper */ + NULL, /* create_similar_image */ + NULL, /* map to image */ + NULL, /* unmap image */ + + _cairo_surface_default_source, + NULL, /* acquire_source_image */ + NULL, /* release_source_image */ + NULL, /* snapshot */ + + _cairo_svg_surface_copy_page, + _cairo_svg_surface_show_page, + + _cairo_svg_surface_get_extents, + _cairo_svg_surface_get_font_options, + + NULL, /* flush */ + NULL, /* mark dirty rectangle */ + + _cairo_svg_surface_paint, + _cairo_svg_surface_mask, + _cairo_svg_surface_stroke, + _cairo_svg_surface_fill, + _cairo_svg_surface_fill_stroke, + _cairo_svg_surface_show_glyphs, + NULL, /* has_show_text_glyphs */ + NULL, /* show_text_glyphs */ + _cairo_svg_surface_get_supported_mime_types, +}; + +static cairo_status_t +_cairo_svg_document_create (cairo_output_stream_t *output_stream, + double width, + double height, + cairo_svg_version_t version, + cairo_svg_document_t **document_out) +{ + cairo_svg_document_t *document; + + if (output_stream->status) { + return output_stream->status; + } + + document = _cairo_calloc (sizeof (cairo_svg_document_t)); + if (unlikely (document == NULL)) { + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + document->output_stream = output_stream; + document->refcount = 1; + document->owner = NULL; + document->finished = FALSE; + + document->width = width; + document->height = height; + document->unit = CAIRO_SVG_UNIT_USER; + + document->xml_node_defs = _cairo_svg_stream_create (); + document->xml_node_glyphs = _cairo_svg_stream_create (); + document->xml_node_filters = _cairo_svg_stream_create (); + + document->linear_pattern_id = 0; + document->radial_pattern_id = 0; + document->pattern_id = 0; + document->clip_id = 0; + document->mask_id = 0; + document->compositing_group_id = 0; + document->filter_id = 0; + + for (enum cairo_svg_filter filter = 0; filter < CAIRO_SVG_FILTER_LAST_STATIC_FILTER; filter++) { + document->filters_emitted[filter] = FALSE; + } + + document->svg_version = version; + + /* The use of defs for font glyphs imposes no per-subset limit. */ + document->font_subsets = _cairo_scaled_font_subsets_create_scaled (); + if (unlikely (document->font_subsets == NULL)) { + (void) _cairo_svg_stream_destroy(&document->xml_node_defs); + (void) _cairo_svg_stream_destroy(&document->xml_node_glyphs); + (void) _cairo_svg_stream_destroy(&document->xml_node_filters); + free (document); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + document->paints = _cairo_hash_table_create (_cairo_svg_paint_equal); + if (unlikely (document->paints == NULL)) { + (void) _cairo_svg_stream_destroy(&document->xml_node_defs); + (void) _cairo_svg_stream_destroy(&document->xml_node_glyphs); + (void) _cairo_svg_stream_destroy(&document->xml_node_filters); + _cairo_scaled_font_subsets_destroy (document->font_subsets); + free (document); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + *document_out = document; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_svg_document_t * +_cairo_svg_document_reference (cairo_svg_document_t *document) +{ + document->refcount++; + + return document; +} + +static cairo_status_t +_cairo_svg_document_destroy (cairo_svg_document_t *document) +{ + cairo_status_t status; + + document->refcount--; + if (document->refcount > 0) + return CAIRO_STATUS_SUCCESS; + + status = _cairo_svg_document_finish (document); + + free (document); + + return status; +} + +static cairo_status_t +_cairo_svg_document_finish (cairo_svg_document_t *document) +{ + if (document->finished) { + return CAIRO_STATUS_SUCCESS; + } + document->finished = TRUE; + + cairo_status_t status, final_status = CAIRO_STATUS_SUCCESS; + + cairo_output_stream_t *output = document->output_stream; + + /* + * Should we add DOCTYPE? + * + * Google says no. + * + * http://tech.groups.yahoo.com/group/svg-developers/message/48562: + * There's a bunch of issues, but just to pick a few: + * - they'll give false positives. + * - they'll give false negatives. + * - they're namespace-unaware. + * - they don't wildcard. + * So when they say OK they really haven't checked anything, when + * they say NOT OK they might be on crack, and like all + * namespace-unaware things they're a dead branch of the XML tree. + * + * http://jwatt.org/svg/authoring/: + * Unfortunately the SVG DTDs are a source of so many issues that the + * SVG WG has decided not to write one for the upcoming SVG 1.2 + * standard. In fact SVG WG members are even telling people not to use + * a DOCTYPE declaration in SVG 1.0 and 1.1 documents. + */ + + _cairo_output_stream_printf (output, + "\n" + "\n", + document->width, _cairo_svg_unit_strings[document->unit], + document->height, _cairo_svg_unit_strings[document->unit], + document->width, document->height); + + status = _cairo_svg_document_emit_font_subsets (document); + if (final_status == CAIRO_STATUS_SUCCESS) { + final_status = status; + } + + cairo_svg_surface_t *surface = NULL; + if (document->owner != NULL) { + surface = (cairo_svg_surface_t *) _cairo_paginated_surface_get_target (document->owner); + + if (surface->xml_node.elements.num_elements > 0) { + cairo_svg_page_t *page = _cairo_svg_surface_store_page (surface); + if (final_status == CAIRO_STATUS_SUCCESS && page == NULL) { + final_status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + } + + if (surface->transitive_paint_used) { + cairo_svg_paint_t *paint_entry = _cairo_calloc (sizeof (cairo_svg_paint_t)); + if (paint_entry == NULL) { + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + paint_entry->source_id = surface->source_id; + paint_entry->box.p1.x = 0; + paint_entry->box.p1.y = 0; + paint_entry->box.p2.x = document->width; + paint_entry->box.p2.y = document->height; + _cairo_svg_paint_box_add_padding (&paint_entry->box); + _cairo_array_init (&paint_entry->paint_elements, sizeof (cairo_svg_paint_element_t)); + _cairo_svg_paint_init_key (paint_entry); + status = _cairo_hash_table_insert (document->paints, &paint_entry->base); + if (unlikely (status)) { + return status; + } + } + } + + _cairo_hash_table_foreach (document->paints, _cairo_svg_paint_compute_func, document); + + if (document->xml_node_filters.elements.num_elements > 0 || + document->xml_node_glyphs.elements.num_elements > 0 || + document->xml_node_defs.elements.num_elements > 0) { + _cairo_output_stream_printf (output, "\n"); + _cairo_svg_stream_copy_to_output_stream (&document->xml_node_filters, output, document->paints); + if (document->xml_node_glyphs.elements.num_elements > 0) { + _cairo_output_stream_printf (output, "\n"); + _cairo_svg_stream_copy_to_output_stream (&document->xml_node_glyphs, output, document->paints); + _cairo_output_stream_printf (output, "\n"); + } + _cairo_svg_stream_copy_to_output_stream (&document->xml_node_defs, output, document->paints); + _cairo_output_stream_printf (output, "\n"); + } + + if (document->owner != NULL) { + if (surface->page_set.num_elements == 1) { + cairo_svg_page_t *page = _cairo_array_index (&surface->page_set, 0); + _cairo_svg_stream_copy_to_output_stream (&page->xml_node, output, document->paints); + } else if (surface->page_set.num_elements > 1) { + _cairo_output_stream_printf (output, "\n"); + for (unsigned int i = 0; i < surface->page_set.num_elements; i++) { + cairo_svg_page_t *page = _cairo_array_index (&surface->page_set, i); + _cairo_output_stream_printf (output, "\n"); + _cairo_svg_stream_copy_to_output_stream (&page->xml_node, output, document->paints); + _cairo_output_stream_printf (output, "\n"); + } + _cairo_output_stream_printf (output, "\n"); + } + } + + _cairo_output_stream_printf (output, "\n"); + + status = _cairo_svg_stream_destroy (&document->xml_node_defs); + if (final_status == CAIRO_STATUS_SUCCESS) { + final_status = status; + } + + status = _cairo_svg_stream_destroy (&document->xml_node_glyphs); + if (final_status == CAIRO_STATUS_SUCCESS) { + final_status = status; + } + + status = _cairo_svg_stream_destroy (&document->xml_node_filters); + if (final_status == CAIRO_STATUS_SUCCESS) { + final_status = status; + } + + _cairo_hash_table_foreach (document->paints, _cairo_svg_paint_pluck, document->paints); + _cairo_hash_table_destroy (document->paints); + + status = _cairo_output_stream_destroy (output); + if (final_status == CAIRO_STATUS_SUCCESS) { + final_status = status; + } + + return final_status; +} + +static cairo_int_status_t +_cairo_svg_surface_set_paginated_mode (void *abstract_surface, + cairo_paginated_mode_t paginated_mode) +{ + cairo_svg_surface_t *surface = abstract_surface; + + surface->paginated_mode = paginated_mode; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_cairo_svg_surface_supports_fine_grained_fallbacks (void *abstract_surface) +{ + return TRUE; +} + +static const cairo_paginated_surface_backend_t cairo_svg_surface_paginated_backend = { + NULL /*_cairo_svg_surface_start_page*/, + _cairo_svg_surface_set_paginated_mode, + NULL, /* _cairo_svg_surface_set_bounding_box */ + NULL, /* _cairo_svg_surface_set_fallback_images_required */ + _cairo_svg_surface_supports_fine_grained_fallbacks, +}; diff --git a/local/recipes/libs/cairo/source/src/cairo-svg.h b/local/recipes/libs/cairo/source/src/cairo-svg.h new file mode 100644 index 0000000000..7745eec90a --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-svg.h @@ -0,0 +1,130 @@ +/* cairo - a vector graphics library with display and print output + * + * cairo-svg.h + * + * Copyright © 2005 Emmanuel Pacaud + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + */ + +#ifndef CAIRO_SVG_H +#define CAIRO_SVG_H + +#include "cairo.h" + +#if CAIRO_HAS_SVG_SURFACE + +CAIRO_BEGIN_DECLS + +/** + * cairo_svg_version_t: + * @CAIRO_SVG_VERSION_1_1: The version 1.1 of the SVG specification. (Since 1.2) + * @CAIRO_SVG_VERSION_1_2: The version 1.2 of the SVG specification. (Since 1.2) + * + * #cairo_svg_version_t is used to describe the version number of the SVG + * specification that a generated SVG file will conform to. + * + * Since: 1.2 + **/ +typedef enum _cairo_svg_version { + CAIRO_SVG_VERSION_1_1, + CAIRO_SVG_VERSION_1_2 +} cairo_svg_version_t; + +/** + * cairo_svg_unit_t: + * @CAIRO_SVG_UNIT_USER: User unit, a value in the current coordinate system. + * If used in the root element for the initial coordinate systems it + * corresponds to pixels. (Since 1.16) + * @CAIRO_SVG_UNIT_EM: The size of the element's font. (Since 1.16) + * @CAIRO_SVG_UNIT_EX: The x-height of the element’s font. (Since 1.16) + * @CAIRO_SVG_UNIT_PX: Pixels (1px = 1/96th of 1in). (Since 1.16) + * @CAIRO_SVG_UNIT_IN: Inches (1in = 2.54cm = 96px). (Since 1.16) + * @CAIRO_SVG_UNIT_CM: Centimeters (1cm = 96px/2.54). (Since 1.16) + * @CAIRO_SVG_UNIT_MM: Millimeters (1mm = 1/10th of 1cm). (Since 1.16) + * @CAIRO_SVG_UNIT_PT: Points (1pt = 1/72th of 1in). (Since 1.16) + * @CAIRO_SVG_UNIT_PC: Picas (1pc = 1/6th of 1in). (Since 1.16) + * @CAIRO_SVG_UNIT_PERCENT: Percent, a value that is some fraction of another + * reference value. (Since 1.16) + * + * #cairo_svg_unit_t is used to describe the units valid for coordinates and + * lengths in the SVG specification. + * + * See also: + * - [SVG Units](https://www.w3.org/TR/SVG/coords.html#Units) + * - [SVG Types](https://www.w3.org/TR/SVG/types.html#DataTypeLength) + * - [CSS Length](https://www.w3.org/TR/css-values-3/#lengths) + * + * Since: 1.16 + **/ +typedef enum _cairo_svg_unit { + CAIRO_SVG_UNIT_USER = 0, + CAIRO_SVG_UNIT_EM, + CAIRO_SVG_UNIT_EX, + CAIRO_SVG_UNIT_PX, + CAIRO_SVG_UNIT_IN, + CAIRO_SVG_UNIT_CM, + CAIRO_SVG_UNIT_MM, + CAIRO_SVG_UNIT_PT, + CAIRO_SVG_UNIT_PC, + CAIRO_SVG_UNIT_PERCENT +} cairo_svg_unit_t; + +cairo_public cairo_surface_t * +cairo_svg_surface_create (const char *filename, + double width_in_points, + double height_in_points); + +cairo_public cairo_surface_t * +cairo_svg_surface_create_for_stream (cairo_write_func_t write_func, + void *closure, + double width_in_points, + double height_in_points); + +cairo_public void +cairo_svg_surface_restrict_to_version (cairo_surface_t *surface, + cairo_svg_version_t version); + +cairo_public void +cairo_svg_get_versions (cairo_svg_version_t const **versions, + int *num_versions); + +cairo_public const char * +cairo_svg_version_to_string (cairo_svg_version_t version); + +cairo_public void +cairo_svg_surface_set_document_unit (cairo_surface_t *surface, + cairo_svg_unit_t unit); + +cairo_public cairo_svg_unit_t +cairo_svg_surface_get_document_unit (cairo_surface_t *surface); + +CAIRO_END_DECLS + +#else /* CAIRO_HAS_SVG_SURFACE */ +# error Cairo was not compiled with support for the svg backend +#endif /* CAIRO_HAS_SVG_SURFACE */ + +#endif /* CAIRO_SVG_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-tag-attributes-private.h b/local/recipes/libs/cairo/source/src/cairo-tag-attributes-private.h new file mode 100644 index 0000000000..5853f9a0d7 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-tag-attributes-private.h @@ -0,0 +1,131 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2016 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Adrian Johnson. + * + * Contributor(s): + * Adrian Johnson + */ + +#ifndef CAIRO_TAG_ATTRIBUTES_PRIVATE_H +#define CAIRO_TAG_ATTRIBUTES_PRIVATE_H + +#include "cairo-array-private.h" +#include "cairo-error-private.h" +#include "cairo-types-private.h" + +typedef enum { + TAG_LINK_INVALID = 0, + TAG_LINK_EMPTY, + TAG_LINK_DEST, + TAG_LINK_URI, + TAG_LINK_FILE, + TAG_LINK_PAGE, + TAG_LINK_DEST_AND_URI, +} cairo_tag_link_type_t; + +typedef struct _cairo_content_attrs { + char *id; + char *tag_name; +} cairo_content_attrs_t; + +typedef struct _cairo_content_ref_attrs { + char *ref; +} cairo_content_ref_attrs_t; + +typedef struct _cairo_link_attrs { + cairo_tag_link_type_t link_type; + cairo_array_t rects; + char *dest; + char *uri; + char *file; + int page; + cairo_bool_t has_pos; + cairo_point_double_t pos; + char *id; + char *ref; + int link_page; +} cairo_link_attrs_t; + +typedef struct _cairo_dest_attrs { + char *name; + double x; + double y; + cairo_bool_t x_valid; + cairo_bool_t y_valid; + cairo_bool_t internal; +} cairo_dest_attrs_t; + +typedef struct _cairo_ccitt_params { + int columns; + int rows; + int k; + cairo_bool_t end_of_line; + cairo_bool_t encoded_byte_align; + cairo_bool_t end_of_block; + cairo_bool_t black_is_1; + int damaged_rows_before_error; +} cairo_ccitt_params_t; + +typedef struct _cairo_eps_params { + cairo_box_double_t bbox; +} cairo_eps_params_t; + +cairo_private cairo_int_status_t +_cairo_tag_parse_link_attributes (const char *attributes, cairo_link_attrs_t *link_attrs); + +cairo_private cairo_int_status_t +_cairo_tag_parse_dest_attributes (const char *attributes, cairo_dest_attrs_t *dest_attrs); + +cairo_private cairo_int_status_t +_cairo_tag_parse_content_attributes (const char *attributes, cairo_content_attrs_t *content_attrs); + +cairo_private cairo_int_status_t +_cairo_tag_parse_content_ref_attributes (const char *attributes, cairo_content_ref_attrs_t *content_ref_attrs); + +cairo_private cairo_int_status_t +_cairo_tag_parse_ccitt_params (const char *attributes, cairo_ccitt_params_t *dest_attrs); + +cairo_private cairo_int_status_t +_cairo_tag_parse_eps_params (const char *attributes, cairo_eps_params_t *dest_attrs); + +cairo_private void +_cairo_tag_free_link_attributes (cairo_link_attrs_t *link_attrs); + +cairo_private void +_cairo_tag_free_dest_attributes (cairo_dest_attrs_t *link_attrs); + +cairo_private void +_cairo_tag_free_content_attributes (cairo_content_attrs_t *link_attrs); + +cairo_private void +_cairo_tag_free_content_ref_attributes (cairo_content_ref_attrs_t *link_attrs); + +#endif /* CAIRO_TAG_ATTRIBUTES_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-tag-attributes.c b/local/recipes/libs/cairo/source/src/cairo-tag-attributes.c new file mode 100644 index 0000000000..70ccd674fb --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-tag-attributes.c @@ -0,0 +1,857 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2016 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Adrian Johnson. + * + * Contributor(s): + * Adrian Johnson + */ + +#include "cairoint.h" + +#include "cairo-array-private.h" +#include "cairo-list-inline.h" +#include "cairo-tag-attributes-private.h" +#include "cairo-tag-stack-private.h" + +#include + +typedef enum { + ATTRIBUTE_BOOL, /* Either true/false or 1/0 may be used. */ + ATTRIBUTE_INT, + ATTRIBUTE_FLOAT, /* Decimal separator is in current locale. */ + ATTRIBUTE_STRING, /* Enclose in single quotes. String escapes: + * \' - single quote + * \\ - backslash + */ +} attribute_type_t; + +typedef struct _attribute_spec { + const char *name; + attribute_type_t type; + int array_size; /* 0 = scalar, -1 = variable size array */ +} attribute_spec_t; + +/* + * id [optional] content id + * content [optional] One or more content ids + */ +static const attribute_spec_t _content_attrib_spec[] = { + { "tag_name", ATTRIBUTE_STRING }, + { "id", ATTRIBUTE_STRING }, + { NULL } +}; + +/* + * id [optional] content id + * content [optional] One or more content ids + */ +static const attribute_spec_t _content_ref_attrib_spec[] = { + { "ref", ATTRIBUTE_STRING }, + { NULL } +}; + +/* + * name [required] Unique name of this destination (UTF-8) + * x [optional] x coordinate of destination on page. Default is x coord of + * extents of operations enclosed by the dest begin/end tags. + * y [optional] y coordinate of destination on page. Default is y coord of + * extents of operations enclosed by the dest begin/end tags. + * internal [optional] If true, the name may be optimized out of the PDF where + * possible. Default false. + */ +static const attribute_spec_t _dest_attrib_spec[] = { + { "name", ATTRIBUTE_STRING }, + { "x", ATTRIBUTE_FLOAT }, + { "y", ATTRIBUTE_FLOAT }, + { "internal", ATTRIBUTE_BOOL }, + { NULL } +}; + +/* + * rect [optional] One or more rectangles to define link region. Default + * is the extents of the operations enclosed by the link begin/end tags. + * Each rectangle is specified by four array elements: x, y, width, height. + * ie the array size must be a multiple of four. + * + * Internal Links + * -------------- + * either: + * dest - name of dest tag in the PDF file to link to (UTF8) + * or + * page - Page number in the PDF file to link to + * pos - [optional] Position of destination on page. Default is 0,0. + * + * URI Links + * --------- + * uri [required] Uniform resource identifier (ASCII). + + * File Links + * ---------- + * file - [required] File name of PDF file to link to. + * either: + * dest - name of dest tag in the PDF file to link to (UTF8) + * or + * page - Page number in the PDF file to link to + * pos - [optional] Position of destination on page. Default is 0,0. + */ +static const attribute_spec_t _link_attrib_spec[] = +{ + { "rect", ATTRIBUTE_FLOAT, -1 }, + { "dest", ATTRIBUTE_STRING }, + { "uri", ATTRIBUTE_STRING }, + { "file", ATTRIBUTE_STRING }, + { "page", ATTRIBUTE_INT }, + { "pos", ATTRIBUTE_FLOAT, 2 }, + { "id", ATTRIBUTE_STRING }, + { "ref", ATTRIBUTE_STRING }, + { "link_page", ATTRIBUTE_INT }, + { NULL } +}; + +/* + * Required: + * Columns - width of the image in pixels. + * Rows - height of the image in scan lines. + * + * Optional: + * K - An integer identifying the encoding scheme used. < 0 is 2 dimensional + * Group 4, = 0 is Group3 1 dimensional, > 0 is mixed 1 and 2 dimensional + * encoding. Default: 0. + * EndOfLine - If true end-of-line bit patterns are present. Default: false. + * EncodedByteAlign - If true the end of line is padded with 0 bits so the next + * line begins on a byte boundary. Default: false. + * EndOfBlock - If true the data contains an end-of-block pattern. Default: true. + * BlackIs1 - If true 1 bits are black pixels. Default: false. + * DamagedRowsBeforeError - Number of damages rows tolerated before an error + * occurs. Default: 0. + */ +static const attribute_spec_t _ccitt_params_spec[] = +{ + { "Columns", ATTRIBUTE_INT }, + { "Rows", ATTRIBUTE_INT }, + { "K", ATTRIBUTE_INT }, + { "EndOfLine", ATTRIBUTE_BOOL }, + { "EncodedByteAlign", ATTRIBUTE_BOOL }, + { "EndOfBlock", ATTRIBUTE_BOOL }, + { "BlackIs1", ATTRIBUTE_BOOL }, + { "DamagedRowsBeforeError", ATTRIBUTE_INT }, + { NULL } +}; + +/* + * bbox - Bounding box of EPS file. The format is [ llx lly urx ury ] + * llx - lower left x xoordinate + * lly - lower left y xoordinate + * urx - upper right x xoordinate + * ury - upper right y xoordinate + * all coordinates are in PostScript coordinates. + */ +static const attribute_spec_t _eps_params_spec[] = +{ + { "bbox", ATTRIBUTE_FLOAT, 4 }, + { NULL } +}; + +typedef union { + cairo_bool_t b; + int i; + double f; + char *s; +} attrib_val_t; + +typedef struct _attribute { + char *name; + attribute_type_t type; + int array_len; /* 0 = scalar */ + attrib_val_t scalar; + cairo_array_t array; /* array of attrib_val_t */ + cairo_list_t link; +} attribute_t; + +static const char * +skip_space (const char *p) +{ + while (_cairo_isspace (*p)) + p++; + + return p; +} + +static const char * +parse_bool (const char *p, cairo_bool_t *b) +{ + if (*p == '1') { + *b = TRUE; + return p + 1; + } else if (*p == '0') { + *b = FALSE; + return p + 1; + } else if (strcmp (p, "true") == 0) { + *b = TRUE; + return p + 4; + } else if (strcmp (p, "false") == 0) { + *b = FALSE; + return p + 5; + } + + return NULL; +} + +static const char * +parse_int (const char *p, int *i) +{ + int n; + + if (sscanf(p, "%d%n", i, &n) > 0) + return p + n; + + return NULL; +} + +static const char * +parse_float (const char *p, double *d) +{ + int n; + const char *start = p; + cairo_bool_t has_decimal_point = FALSE; + + while (*p) { + if (*p == '.' || *p == ']' || _cairo_isspace (*p)) + break; + p++; + } + + if (*p == '.') + has_decimal_point = TRUE; + + if (has_decimal_point) { + char *end; + *d = _cairo_strtod (start, &end); + if (end && end != start) + return end; + + } else { + if (sscanf(start, "%lf%n", d, &n) > 0) + return start + n; + } + + return NULL; +} + +static const char * +decode_string (const char *p, int *len, char *s) +{ + if (*p != '\'') + return NULL; + + p++; + if (! *p) + return NULL; + + *len = 0; + while (*p) { + if (*p == '\\') { + p++; + if (*p) { + if (s) + *s++ = *p; + p++; + (*len)++; + } + } else if (*p == '\'') { + return p + 1; + } else { + if (s) + *s++ = *p; + p++; + (*len)++; + } + } + + return NULL; +} + +static const char * +parse_string (const char *p, char **s) +{ + const char *end; + int len; + + end = decode_string (p, &len, NULL); + if (!end) + return NULL; + + *s = _cairo_malloc (len + 1); + decode_string (p, &len, *s); + (*s)[len] = 0; + + return end; +} + +static const char * +parse_scalar (const char *p, attribute_type_t type, attrib_val_t *scalar) +{ + switch (type) { + case ATTRIBUTE_BOOL: + return parse_bool (p, &scalar->b); + case ATTRIBUTE_INT: + return parse_int (p, &scalar->i); + case ATTRIBUTE_FLOAT: + return parse_float (p, &scalar->f); + case ATTRIBUTE_STRING: + return parse_string (p, &scalar->s); + } + + return NULL; +} + +static cairo_int_status_t +parse_array (const char *attributes, const char *p, attribute_type_t type, cairo_array_t *array, const char **end) +{ + attrib_val_t val; + cairo_int_status_t status; + + p = skip_space (p); + if (! *p) + goto error; + + if (*p++ != '[') + goto error; + + while (TRUE) { + p = skip_space (p); + if (! *p) + goto error; + + if (*p == ']') { + *end = p + 1; + return CAIRO_INT_STATUS_SUCCESS; + } + + p = parse_scalar (p, type, &val); + if (!p) + goto error; + + status = _cairo_array_append (array, &val); + if (unlikely (status)) + return status; + } + + error: + return _cairo_tag_error ( + "while parsing attributes: \"%s\". Error parsing array", attributes); +} + +static cairo_int_status_t +parse_name (const char *attributes, const char *p, const char **end, char **s) +{ + const char *p2; + char *name; + int len; + + if (! _cairo_isalpha (*p)) + return _cairo_tag_error ( + "while parsing attributes: \"%s\". Error parsing name." + " \"%s\" does not start with an alphabetic character", + attributes, p); + + p2 = p; + while (_cairo_isalpha (*p2) || _cairo_isdigit (*p2) || *p2 == '_') + p2++; + + len = p2 - p; + name = _cairo_strndup (p, len); + if (unlikely (name == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + *s = name; + *end = p2; + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +parse_attributes (const char *attributes, const attribute_spec_t *attrib_def, cairo_list_t *list) +{ + const attribute_spec_t *def; + attribute_t *attrib; + char *name = NULL; + cairo_int_status_t status; + const char *p = attributes; + + if (! p) + return CAIRO_INT_STATUS_SUCCESS; + + while (*p) { + p = skip_space (p); + if (! *p) + break; + + status = parse_name (attributes, p, &p, &name); + if (status) + return status; + + def = attrib_def; + while (def->name) { + if (strcmp (name, def->name) == 0) + break; + def++; + } + + if (! def->name) { + status = _cairo_tag_error ( + "while parsing attributes: \"%s\". Unknown attribute name \"%s\"", + attributes, name); + goto fail1; + } + + attrib = _cairo_calloc (sizeof (attribute_t)); + if (unlikely (attrib == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail1; + } + + attrib->name = name; + attrib->type = def->type; + _cairo_array_init (&attrib->array, sizeof(attrib_val_t)); + + p = skip_space (p); + if (def->type == ATTRIBUTE_BOOL && *p != '=') { + attrib->scalar.b = TRUE; + } else { + if (*p++ != '=') { + status = _cairo_tag_error ( + "while parsing attributes: \"%s\". Expected '=' after \"%s\"", + attributes, name); + goto fail2; + } + + if (def->array_size == 0) { + const char *s = p; + p = parse_scalar (p, def->type, &attrib->scalar); + if (!p) { + status = _cairo_tag_error ( + "while parsing attributes: \"%s\". Error parsing \"%s\"", + attributes, s); + goto fail2; + } + + attrib->array_len = 0; + } else { + status = parse_array (attributes, p, def->type, &attrib->array, &p); + if (unlikely (status)) + goto fail2; + + attrib->array_len = _cairo_array_num_elements (&attrib->array); + if (def->array_size > 0 && attrib->array_len != def->array_size) { + status = _cairo_tag_error ( + "while parsing attributes: \"%s\". Expected %d elements in array. Found %d", + attributes, def->array_size, attrib->array_len); + goto fail2; + } + } + } + + cairo_list_add_tail (&attrib->link, list); + } + + return CAIRO_INT_STATUS_SUCCESS; + + fail2: + _cairo_array_fini (&attrib->array); + if (attrib->type == ATTRIBUTE_STRING) + free (attrib->scalar.s); + free (attrib); + fail1: + free (name); + + return status; +} + +static void +free_attributes_list (cairo_list_t *list) +{ + attribute_t *attr, *next; + + cairo_list_foreach_entry_safe (attr, next, attribute_t, list, link) + { + cairo_list_del (&attr->link); + free (attr->name); + _cairo_array_fini (&attr->array); + if (attr->type == ATTRIBUTE_STRING) + free (attr->scalar.s); + free (attr); + } +} + +cairo_int_status_t +_cairo_tag_parse_content_attributes (const char *attributes, cairo_content_attrs_t *content_attrs) +{ + cairo_list_t list; + cairo_int_status_t status; + attribute_t *attr; + + cairo_list_init (&list); + status = parse_attributes (attributes, _content_attrib_spec, &list); + if (unlikely (status)) + goto cleanup; + + memset (content_attrs, 0, sizeof (cairo_content_attrs_t)); + cairo_list_foreach_entry (attr, attribute_t, &list, link) + { + if (strcmp (attr->name, "tag_name") == 0) { + content_attrs->tag_name = strdup (attr->scalar.s); + } else if (strcmp (attr->name, "id") == 0) { + content_attrs->id = strdup (attr->scalar.s); + } + } + + if (! content_attrs->tag_name) { + status = _cairo_tag_error ("CONTENT attributes: \"%s\" missing tag_name attribute", + attributes); + } else if (! content_attrs->tag_name) { + status = _cairo_tag_error ("CONTENT attributes: \"%s\" missing id attribute", + attributes); + } + + cleanup: + free_attributes_list (&list); + + return status; +} + +cairo_int_status_t +_cairo_tag_parse_content_ref_attributes (const char *attributes, cairo_content_ref_attrs_t *content_ref_attrs) +{ + cairo_list_t list; + cairo_int_status_t status; + attribute_t *attr; + + cairo_list_init (&list); + status = parse_attributes (attributes, _content_ref_attrib_spec, &list); + if (unlikely (status)) + goto cleanup; + + memset (content_ref_attrs, 0, sizeof (cairo_content_ref_attrs_t)); + cairo_list_foreach_entry (attr, attribute_t, &list, link) + { + if (strcmp (attr->name, "ref") == 0) { + content_ref_attrs->ref = strdup (attr->scalar.s); + } + } + + if (! content_ref_attrs->ref) { + status = _cairo_tag_error ("CONTENT_REF attributes: \"%s\" missing ref attribute", + attributes); + } + + cleanup: + free_attributes_list (&list); + + return status; +} + +cairo_int_status_t +_cairo_tag_parse_link_attributes (const char *attributes, cairo_link_attrs_t *link_attrs) +{ + cairo_list_t list; + cairo_int_status_t status; + attribute_t *attr; + attrib_val_t val; + cairo_bool_t invalid_combination = FALSE; + + cairo_list_init (&list); + status = parse_attributes (attributes, _link_attrib_spec, &list); + if (unlikely (status)) + return status; + + memset (link_attrs, 0, sizeof (cairo_link_attrs_t)); + _cairo_array_init (&link_attrs->rects, sizeof (cairo_rectangle_t)); + + cairo_list_foreach_entry (attr, attribute_t, &list, link) { + if (strcmp (attr->name, "dest") == 0) { + link_attrs->dest = strdup (attr->scalar.s); + + } else if (strcmp (attr->name, "page") == 0) { + link_attrs->page = attr->scalar.i; + if (link_attrs->page < 1) { + status = _cairo_tag_error ("Link attributes: \"%s\" page must be >= 1", attributes); + goto cleanup; + } + + } else if (strcmp (attr->name, "pos") == 0) { + _cairo_array_copy_element (&attr->array, 0, &val); + link_attrs->pos.x = val.f; + _cairo_array_copy_element (&attr->array, 1, &val); + link_attrs->pos.y = val.f; + link_attrs->has_pos = TRUE; + + } else if (strcmp (attr->name, "uri") == 0) { + link_attrs->uri = strdup (attr->scalar.s); + + } else if (strcmp (attr->name, "file") == 0) { + link_attrs->file = strdup (attr->scalar.s); + + } else if (strcmp (attr->name, "rect") == 0) { + cairo_rectangle_t rect; + int i; + int num_elem = _cairo_array_num_elements (&attr->array); + if (num_elem == 0 || num_elem % 4 != 0) { + status = _cairo_tag_error ("Link attributes: \"%s\" rect array size must be multiple of 4", + attributes); + goto cleanup; + } + + for (i = 0; i < num_elem; i += 4) { + _cairo_array_copy_element (&attr->array, i, &val); + rect.x = val.f; + _cairo_array_copy_element (&attr->array, i+1, &val); + rect.y = val.f; + _cairo_array_copy_element (&attr->array, i+2, &val); + rect.width = val.f; + _cairo_array_copy_element (&attr->array, i+3, &val); + rect.height = val.f; + status = _cairo_array_append (&link_attrs->rects, &rect); + if (unlikely (status)) + goto cleanup; + } + } else if (strcmp (attr->name, "id") == 0) { + link_attrs->id = strdup (attr->scalar.s); + } else if (strcmp (attr->name, "ref") == 0) { + link_attrs->ref = strdup (attr->scalar.s); + } else if (strcmp (attr->name, "link_page") == 0) { + link_attrs->link_page = attr->scalar.i; + if (link_attrs->link_page < 1) { + status = _cairo_tag_error ("Link attributes: \"%s\" page must be >= 1", attributes); + goto cleanup; + } + } + } + + if (link_attrs->file) { + link_attrs->link_type = TAG_LINK_FILE; + if (link_attrs->uri) + invalid_combination = TRUE; + else if (link_attrs->dest && (link_attrs->page || link_attrs->has_pos)) + invalid_combination = TRUE; + + } else if (link_attrs->uri && link_attrs->dest) { + link_attrs->link_type = TAG_LINK_DEST_AND_URI; + if (link_attrs->page || link_attrs->has_pos || link_attrs->file) + invalid_combination = TRUE; + + } else if (link_attrs->uri) { + link_attrs->link_type = TAG_LINK_URI; + if (link_attrs->dest || link_attrs->page || link_attrs->has_pos || link_attrs->file) + invalid_combination = TRUE; + + } else if (link_attrs->dest) { + link_attrs->link_type = TAG_LINK_DEST; + if (link_attrs->uri || link_attrs->page || link_attrs->has_pos) + invalid_combination = TRUE; + + } else if (link_attrs->page) { + link_attrs->link_type = TAG_LINK_PAGE; + if (link_attrs->uri || link_attrs->dest) + invalid_combination = TRUE; + + } else { + link_attrs->link_type = TAG_LINK_EMPTY; + if (link_attrs->has_pos) + invalid_combination = TRUE; + } + + if (invalid_combination) { + status = _cairo_tag_error ( + "Link attributes: \"%s\" invalid combination of attributes", attributes); + } + + cleanup: + free_attributes_list (&list); + if (unlikely (status)) { + free (link_attrs->dest); + free (link_attrs->uri); + free (link_attrs->file); + _cairo_array_fini (&link_attrs->rects); + } + + return status; +} + +cairo_int_status_t +_cairo_tag_parse_dest_attributes (const char *attributes, cairo_dest_attrs_t *dest_attrs) +{ + cairo_list_t list; + cairo_int_status_t status; + attribute_t *attr; + + memset (dest_attrs, 0, sizeof (cairo_dest_attrs_t)); + cairo_list_init (&list); + status = parse_attributes (attributes, _dest_attrib_spec, &list); + if (unlikely (status)) + goto cleanup; + + cairo_list_foreach_entry (attr, attribute_t, &list, link) + { + if (strcmp (attr->name, "name") == 0) { + dest_attrs->name = strdup (attr->scalar.s); + } else if (strcmp (attr->name, "x") == 0) { + dest_attrs->x = attr->scalar.f; + dest_attrs->x_valid = TRUE; + } else if (strcmp (attr->name, "y") == 0) { + dest_attrs->y = attr->scalar.f; + dest_attrs->y_valid = TRUE; + } else if (strcmp (attr->name, "internal") == 0) { + dest_attrs->internal = attr->scalar.b; + } + } + + if (! dest_attrs->name) + status = _cairo_tag_error ("Destination attributes: \"%s\" missing name attribute", + attributes); + + cleanup: + free_attributes_list (&list); + + return status; +} + +cairo_int_status_t +_cairo_tag_parse_ccitt_params (const char *attributes, cairo_ccitt_params_t *ccitt_params) +{ + cairo_list_t list; + cairo_int_status_t status; + attribute_t *attr; + + ccitt_params->columns = -1; + ccitt_params->rows = -1; + + /* set defaults */ + ccitt_params->k = 0; + ccitt_params->end_of_line = FALSE; + ccitt_params->encoded_byte_align = FALSE; + ccitt_params->end_of_block = TRUE; + ccitt_params->black_is_1 = FALSE; + ccitt_params->damaged_rows_before_error = 0; + + cairo_list_init (&list); + status = parse_attributes (attributes, _ccitt_params_spec, &list); + if (unlikely (status)) + goto cleanup; + + cairo_list_foreach_entry (attr, attribute_t, &list, link) + { + if (strcmp (attr->name, "Columns") == 0) { + ccitt_params->columns = attr->scalar.i; + } else if (strcmp (attr->name, "Rows") == 0) { + ccitt_params->rows = attr->scalar.i; + } else if (strcmp (attr->name, "K") == 0) { + ccitt_params->k = attr->scalar.i; + } else if (strcmp (attr->name, "EndOfLine") == 0) { + ccitt_params->end_of_line = attr->scalar.b; + } else if (strcmp (attr->name, "EncodedByteAlign") == 0) { + ccitt_params->encoded_byte_align = attr->scalar.b; + } else if (strcmp (attr->name, "EndOfBlock") == 0) { + ccitt_params->end_of_block = attr->scalar.b; + } else if (strcmp (attr->name, "BlackIs1") == 0) { + ccitt_params->black_is_1 = attr->scalar.b; + } else if (strcmp (attr->name, "DamagedRowsBeforeError") == 0) { + ccitt_params->damaged_rows_before_error = attr->scalar.b; + } + } + + cleanup: + free_attributes_list (&list); + + return status; +} + +cairo_int_status_t +_cairo_tag_parse_eps_params (const char *attributes, cairo_eps_params_t *eps_params) +{ + cairo_list_t list; + cairo_int_status_t status; + attribute_t *attr; + attrib_val_t val; + + cairo_list_init (&list); + status = parse_attributes (attributes, _eps_params_spec, &list); + if (unlikely (status)) + goto cleanup; + + cairo_list_foreach_entry (attr, attribute_t, &list, link) + { + if (strcmp (attr->name, "bbox") == 0) { + _cairo_array_copy_element (&attr->array, 0, &val); + eps_params->bbox.p1.x = val.f; + _cairo_array_copy_element (&attr->array, 1, &val); + eps_params->bbox.p1.y = val.f; + _cairo_array_copy_element (&attr->array, 2, &val); + eps_params->bbox.p2.x = val.f; + _cairo_array_copy_element (&attr->array, 3, &val); + eps_params->bbox.p2.y = val.f; + } + } + + cleanup: + free_attributes_list (&list); + + return status; +} + +void +_cairo_tag_free_link_attributes (cairo_link_attrs_t *link_attrs) +{ + _cairo_array_fini (&link_attrs->rects); + free (link_attrs->dest); + free (link_attrs->uri); + free (link_attrs->file); + free (link_attrs->id); + free (link_attrs->ref); +} + +void +_cairo_tag_free_dest_attributes (cairo_dest_attrs_t *dest_attrs) +{ + free (dest_attrs->name); +} + +void +_cairo_tag_free_content_attributes (cairo_content_attrs_t *content_attrs) +{ + free (content_attrs->id); + free (content_attrs->tag_name); +} + +void +_cairo_tag_free_content_ref_attributes (cairo_content_ref_attrs_t *content_ref_attrs) +{ + free (content_ref_attrs->ref); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-tag-stack-private.h b/local/recipes/libs/cairo/source/src/cairo-tag-stack-private.h new file mode 100644 index 0000000000..b3878ddb2e --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-tag-stack-private.h @@ -0,0 +1,122 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2016 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Adrian Johnson. + * + * Contributor(s): + * Adrian Johnson + */ + +#ifndef CAIRO_TAG_STACK_PRIVATE_H +#define CAIRO_TAG_STACK_PRIVATE_H + +#include "cairo-error-private.h" +#include "cairo-list-inline.h" + +/* The type of a single tag */ +typedef enum { + TAG_TYPE_INVALID = 0, + TAG_TYPE_STRUCTURE = 1, + TAG_TYPE_LINK = 2, + TAG_TYPE_DEST = 4, + TAG_TYPE_CONTENT = 8, + TAG_TYPE_CONTENT_REF = 16, + TAG_TYPE_ARTIFACT = 16, +} cairo_tag_type_t; + +/* The type of the structure tree. */ +typedef enum _cairo_tag_stack_structure_type { + TAG_TREE_TYPE_TAGGED, /* compliant with Tagged PDF */ + TAG_TREE_TYPE_STRUCTURE, /* valid structure but not 'Tagged PDF' compliant */ + TAG_TREE_TYPE_LINK_ONLY, /* contains Link tags only */ + TAG_TREE_TYPE_NO_TAGS, /* no tags used */ + TAG_TREE_TYPE_INVALID, /* invalid tag structure */ +} cairo_tag_stack_structure_type_t; + +typedef struct _cairo_tag_stack_elem { + char *name; + char *attributes; + void *data; + cairo_list_t link; + +} cairo_tag_stack_elem_t; + +typedef struct _cairo_tag_stack { + cairo_list_t list; + cairo_tag_stack_structure_type_t type; + int size; + +} cairo_tag_stack_t; + +cairo_private void +_cairo_tag_stack_init (cairo_tag_stack_t *stack); + +cairo_private void +_cairo_tag_stack_fini (cairo_tag_stack_t *stack); + +cairo_private cairo_tag_stack_structure_type_t +_cairo_tag_stack_get_structure_type (cairo_tag_stack_t *stack); + +cairo_private cairo_int_status_t +_cairo_tag_stack_push (cairo_tag_stack_t *stack, + const char *name, + const char *attributes); + +cairo_private void +_cairo_tag_stack_set_top_data (cairo_tag_stack_t *stack, + void *data); + +cairo_private cairo_int_status_t +_cairo_tag_stack_pop (cairo_tag_stack_t *stack, + const char *name, + cairo_tag_stack_elem_t **elem); + +cairo_private cairo_tag_stack_elem_t * +_cairo_tag_stack_top_elem (cairo_tag_stack_t *stack); + +cairo_private void +_cairo_tag_stack_foreach (cairo_tag_stack_t *stack, + void (*func)(cairo_tag_stack_elem_t *elem, + void *closure), + void *closure); + +cairo_private void +_cairo_tag_stack_free_elem (cairo_tag_stack_elem_t *elem); + +cairo_private cairo_tag_type_t +_cairo_tag_get_type (const char *name); + +cairo_private cairo_status_t +_cairo_tag_error (const char *fmt, ...) CAIRO_PRINTF_FORMAT (1, 2); + +cairo_private void +_cairo_tag_warning (const char *fmt, ...) CAIRO_PRINTF_FORMAT (1, 2); + +#endif /* CAIRO_TAG_STACK_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-tag-stack.c b/local/recipes/libs/cairo/source/src/cairo-tag-stack.c new file mode 100644 index 0000000000..0d32f4fab9 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-tag-stack.c @@ -0,0 +1,347 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2016 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Adrian Johnson. + * + * Contributor(s): + * Adrian Johnson + */ + +#include "cairoint.h" + +#include "cairo-tag-stack-private.h" + +/* Tagged PDF must have one of these tags at the top level */ +static const char * _cairo_tag_stack_tagged_pdf_top_level_element_list[] = +{ + "Document", + "Part", + "Art", + "Sect", + "Div", + NULL +}; + +/* List of valid tag names. Table numbers reference PDF 32000 */ +static const char * _cairo_tag_stack_struct_pdf_list[] = +{ + /* Table 333 - Grouping Elements */ + "Document", + "Part", + "Art", + "Sect", + "Div", + "BlockQuote", + "Caption", + "TOC", + "TOCI", + "Index", + "NonStruct", + "Private", + + /* Table 335 - Standard structure types for paragraphlike elements */ + "P", "H", + "H1", "H2", "H3", "H4", "H5", "H6", + + /* Table 336 - Standard structure types for list elements */ + "L", "LI", "Lbl", "LBody", + + /* Table 337 - Standard structure types for table elements */ + "Table", + "TR", "TH", "TD", + "THead", "TBody", "TFoot", + + /* Table 338 - Standard structure types for inline-level structure elements */ + "Span", + "Quote", + "Note", + "Reference", + "BibEntry", + "Code", + "Link", /* CAIRO_TAG_LINK */ + "Annot", + "Ruby", + "Warichu", + + /* Table 339 - Standard structure types for Ruby and Warichu elements */ + "RB", "RT", "RP", + "WT", "WP", + + /* Table 340 - Standard structure types for illustration elements */ + "Figure", + "Formula", + "Form", + + /* Section 14.8.2.2.2 - Artifacts */ + "Artifact", + + NULL +}; + +/* List of cairo specific tag names */ +static const char * _cairo_tag_stack_cairo_tag_list[] = +{ + CAIRO_TAG_DEST, + CAIRO_TAG_CONTENT, + CAIRO_TAG_CONTENT_REF, + NULL +}; + +void +_cairo_tag_stack_init (cairo_tag_stack_t *stack) +{ + cairo_list_init (&stack->list); + stack->type = TAG_TREE_TYPE_NO_TAGS; + stack->size = 0; +} + +void +_cairo_tag_stack_fini (cairo_tag_stack_t *stack) +{ + while (! cairo_list_is_empty (&stack->list)) { + cairo_tag_stack_elem_t *elem; + + elem = cairo_list_first_entry (&stack->list, cairo_tag_stack_elem_t, link); + cairo_list_del (&elem->link); + free (elem->name); + free (elem->attributes); + free (elem); + } +} + +cairo_tag_stack_structure_type_t +_cairo_tag_stack_get_structure_type (cairo_tag_stack_t *stack) +{ + return stack->type; +} + +static cairo_bool_t +name_in_list (const char *name, const char **list) +{ + if (! name) + return FALSE; + + while (*list) { + if (strcmp (name, *list) == 0) + return TRUE; + list++; + } + + return FALSE; +} + +cairo_int_status_t +_cairo_tag_stack_push (cairo_tag_stack_t *stack, + const char *name, + const char *attributes) +{ + cairo_tag_stack_elem_t *elem; + + if (! name_in_list (name, _cairo_tag_stack_struct_pdf_list) && + ! name_in_list (name, _cairo_tag_stack_cairo_tag_list)) + { + stack->type = TAG_TYPE_INVALID; + return _cairo_tag_error ("Invalid tag: %s", name); + } + + cairo_tag_stack_elem_t *top = _cairo_tag_stack_top_elem (stack); + if (top && + (strcmp (top->name, CAIRO_TAG_CONTENT) == 0 || + strcmp (top->name, CAIRO_TAG_CONTENT_REF) == 0 || + strcmp (top->name, "Artifact") == 0)) + { + return _cairo_tag_error ("%s tag can not contain nested tags", + (strcmp (top->name, CAIRO_TAG_CONTENT) == 0) ? "CAIRO_TAG_CONTENT" : + ((strcmp (top->name, CAIRO_TAG_CONTENT_REF) == 0) ? "CAIRO_TAG_CONTENT_REF" : top->name)); + } + + if (stack->type == TAG_TREE_TYPE_NO_TAGS) { + if (name_in_list (name, _cairo_tag_stack_tagged_pdf_top_level_element_list)) + stack->type = TAG_TREE_TYPE_TAGGED; + else if (strcmp (name, "Link") == 0) + stack->type = TAG_TREE_TYPE_LINK_ONLY; + else if (name_in_list (name, _cairo_tag_stack_struct_pdf_list)) + stack->type = TAG_TREE_TYPE_STRUCTURE; + } else { + if (stack->type == TAG_TREE_TYPE_LINK_ONLY && + (strcmp (name, "Link") != 0) && + name_in_list (name, _cairo_tag_stack_struct_pdf_list)) + { + stack->type = TAG_TREE_TYPE_STRUCTURE; + } + } + + elem = _cairo_calloc (sizeof(cairo_tag_stack_elem_t)); + if (unlikely (elem == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + elem->name = strdup (name); + if (unlikely (elem->name == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (attributes) { + elem->attributes = strdup (attributes); + if (unlikely (elem->attributes == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } else { + elem->attributes = NULL; + } + + elem->data = NULL; + + cairo_list_add_tail (&elem->link, &stack->list); + stack->size++; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_private void +_cairo_tag_stack_set_top_data (cairo_tag_stack_t *stack, + void *data) +{ + cairo_tag_stack_elem_t *top; + + top = _cairo_tag_stack_top_elem (stack); + if (top) + top->data = data; +} + +cairo_int_status_t +_cairo_tag_stack_pop (cairo_tag_stack_t *stack, + const char *name, + cairo_tag_stack_elem_t **elem) +{ + cairo_tag_stack_elem_t *top; + + top = _cairo_tag_stack_top_elem (stack); + if (!top) { + stack->type = TAG_TYPE_INVALID; + return _cairo_tag_error ("cairo_tag_end(\"%s\") no matching begin tag", name); + } + + cairo_list_del (&top->link); + stack->size--; + if (strcmp (top->name, name) != 0) { + cairo_status_t status = + _cairo_tag_error ("cairo_tag_end(\"%s\") does not matching previous begin tag \"%s\"", + name, top->name); + stack->type = TAG_TYPE_INVALID; + _cairo_tag_stack_free_elem (top); + return status; + } + + if (elem) + *elem = top; + else + _cairo_tag_stack_free_elem (top); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_tag_stack_elem_t * +_cairo_tag_stack_top_elem (cairo_tag_stack_t *stack) +{ + if (cairo_list_is_empty (&stack->list)) + return NULL; + + return cairo_list_last_entry (&stack->list, cairo_tag_stack_elem_t, link); +} + +void +_cairo_tag_stack_foreach (cairo_tag_stack_t *stack, + void (*func)(cairo_tag_stack_elem_t *elem, + void *closure), + void *closure) +{ + cairo_tag_stack_elem_t *elem; + + cairo_list_foreach_entry (elem, cairo_tag_stack_elem_t, &stack->list, link) { + func (elem, closure); + } +} + +void +_cairo_tag_stack_free_elem (cairo_tag_stack_elem_t *elem) +{ + free (elem->name); + free (elem->attributes); + free (elem); +} + +cairo_tag_type_t +_cairo_tag_get_type (const char *name) +{ + if (! name_in_list (name, _cairo_tag_stack_struct_pdf_list) && + ! name_in_list (name, _cairo_tag_stack_cairo_tag_list)) + return TAG_TYPE_INVALID; + + if (strcmp(name, "Link") == 0) + return (TAG_TYPE_LINK | TAG_TYPE_STRUCTURE); + + if (strcmp(name, CAIRO_TAG_DEST) == 0) + return TAG_TYPE_DEST; + + if (strcmp(name, CAIRO_TAG_CONTENT) == 0) + return TAG_TYPE_CONTENT; + + if (strcmp(name, CAIRO_TAG_CONTENT_REF) == 0) + return TAG_TYPE_CONTENT_REF; + + return TAG_TYPE_STRUCTURE; +} + +cairo_status_t +_cairo_tag_error (const char *fmt, ...) +{ + va_list ap; + + if (getenv ("CAIRO_DEBUG_TAG") != NULL) { + printf ("TAG ERROR: "); + va_start (ap, fmt); + vprintf (fmt, ap); + va_end (ap); + printf ("\n"); + } + return _cairo_error (CAIRO_STATUS_TAG_ERROR); +} + +void +_cairo_tag_warning (const char *fmt, ...) +{ + va_list ap; + + if (getenv ("CAIRO_DEBUG_TAG") != NULL) { + printf ("TAG WARNING: "); + va_start (ap, fmt); + vprintf (fmt, ap); + va_end (ap); + printf ("\n"); + } +} diff --git a/local/recipes/libs/cairo/source/src/cairo-tee-surface.c b/local/recipes/libs/cairo/source/src/cairo-tee-surface.c new file mode 100644 index 0000000000..1739912907 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-tee-surface.c @@ -0,0 +1,625 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl Worth + * Chris Wilson + */ + +/** + * SECTION:cairo-tee + * @Title: Tee surface + * @Short_Description: Redirect input to multiple surfaces + * @See_Also: #cairo_surface_t + * + * The "tee" surface supports redirecting all its input to multiple surfaces. + **/ + +/** + * CAIRO_HAS_TEE_SURFACE: + * + * Defined if the tee surface backend is available. + * + * Since: 1.10 + **/ + +#include "cairoint.h" + +#include "cairo-tee.h" + +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-recording-surface-inline.h" +#include "cairo-surface-wrapper-private.h" +#include "cairo-array-private.h" +#include "cairo-image-surface-inline.h" + +typedef struct _cairo_tee_surface { + cairo_surface_t base; + + cairo_surface_wrapper_t primary; + cairo_array_t replicas; +} cairo_tee_surface_t; + +static cairo_surface_t * +_cairo_tee_surface_create_similar (void *abstract_surface, + cairo_content_t content, + int width, + int height) +{ + + cairo_tee_surface_t *other = abstract_surface; + cairo_surface_t *similar; + cairo_surface_t *surface; + cairo_surface_wrapper_t *replicas; + int n, num_replicas; + + similar = _cairo_surface_wrapper_create_similar (&other->primary, + content, width, height); + surface = cairo_tee_surface_create (similar); + cairo_surface_destroy (similar); + if (unlikely (surface->status)) + return surface; + + num_replicas = _cairo_array_num_elements (&other->replicas); + replicas = _cairo_array_index (&other->replicas, 0); + for (n = 0; n < num_replicas; n++) { + + similar = _cairo_surface_wrapper_create_similar (&replicas[n], + content, + width, height); + cairo_tee_surface_add (surface, similar); + cairo_surface_destroy (similar); + } + + if (unlikely (surface->status)) { + cairo_status_t status = surface->status; + cairo_surface_destroy (surface); + surface = _cairo_surface_create_in_error (status); + } + + return surface; +} + +static cairo_status_t +_cairo_tee_surface_finish (void *abstract_surface) +{ + cairo_tee_surface_t *surface = abstract_surface; + cairo_surface_wrapper_t *replicas; + int n, num_replicas; + + _cairo_surface_wrapper_fini (&surface->primary); + + num_replicas = _cairo_array_num_elements (&surface->replicas); + replicas = _cairo_array_index (&surface->replicas, 0); + for (n = 0; n < num_replicas; n++) + _cairo_surface_wrapper_fini (&replicas[n]); + + _cairo_array_fini (&surface->replicas); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_surface_t * +_cairo_tee_surface_source (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_tee_surface_t *surface = abstract_surface; + return _cairo_surface_get_source (surface->primary.target, extents); +} + +static cairo_status_t +_cairo_tee_surface_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + cairo_tee_surface_t *surface = abstract_surface; + cairo_surface_wrapper_t *replicas; + int num_replicas, n; + + /* we prefer to use a real image surface if available */ + if (_cairo_surface_is_image (surface->primary.target)) { + return _cairo_surface_wrapper_acquire_source_image (&surface->primary, + image_out, image_extra); + } + + num_replicas = _cairo_array_num_elements (&surface->replicas); + replicas = _cairo_array_index (&surface->replicas, 0); + for (n = 0; n < num_replicas; n++) { + if (_cairo_surface_is_image (replicas[n].target)) { + return _cairo_surface_wrapper_acquire_source_image (&replicas[n], + image_out, + image_extra); + } + } + + return _cairo_surface_wrapper_acquire_source_image (&surface->primary, + image_out, image_extra); +} + +static void +_cairo_tee_surface_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *image_extra) +{ + cairo_tee_surface_t *surface = abstract_surface; + + _cairo_surface_wrapper_release_source_image (&surface->primary, + image, image_extra); +} + +static cairo_surface_t * +_cairo_tee_surface_snapshot (void *abstract_surface) +{ + cairo_tee_surface_t *surface = abstract_surface; + cairo_surface_wrapper_t *replicas; + int num_replicas, n; + + /* we prefer to use a recording surface for our snapshots */ + if (_cairo_surface_is_recording (surface->primary.target)) + return _cairo_surface_wrapper_snapshot (&surface->primary); + + num_replicas = _cairo_array_num_elements (&surface->replicas); + replicas = _cairo_array_index (&surface->replicas, 0); + for (n = 0; n < num_replicas; n++) { + if (_cairo_surface_is_recording (replicas[n].target)) + return _cairo_surface_wrapper_snapshot (&replicas[n]); + } + + return _cairo_surface_wrapper_snapshot (&surface->primary); +} + +static cairo_bool_t +_cairo_tee_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle) +{ + cairo_tee_surface_t *surface = abstract_surface; + + return _cairo_surface_wrapper_get_extents (&surface->primary, rectangle); +} + +static void +_cairo_tee_surface_get_font_options (void *abstract_surface, + cairo_font_options_t *options) +{ + cairo_tee_surface_t *surface = abstract_surface; + + _cairo_surface_wrapper_get_font_options (&surface->primary, options); +} + +static cairo_int_status_t +_cairo_tee_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_tee_surface_t *surface = abstract_surface; + cairo_surface_wrapper_t *replicas; + int n, num_replicas; + cairo_int_status_t status; + + num_replicas = _cairo_array_num_elements (&surface->replicas); + replicas = _cairo_array_index (&surface->replicas, 0); + for (n = 0; n < num_replicas; n++) { + status = _cairo_surface_wrapper_paint (&replicas[n], op, source, 0, clip); + if (unlikely (status)) + return status; + } + + return _cairo_surface_wrapper_paint (&surface->primary, op, source, 0, clip); +} + +static cairo_int_status_t +_cairo_tee_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_tee_surface_t *surface = abstract_surface; + cairo_surface_wrapper_t *replicas; + cairo_int_status_t status; + int n, num_replicas; + + num_replicas = _cairo_array_num_elements (&surface->replicas); + replicas = _cairo_array_index (&surface->replicas, 0); + for (n = 0; n < num_replicas; n++) { + status = _cairo_surface_wrapper_mask (&replicas[n], + op, source, 0, + mask, 0, + clip); + if (unlikely (status)) + return status; + } + + return _cairo_surface_wrapper_mask (&surface->primary, + op, source, 0, + mask, 0, + clip); +} + +static cairo_int_status_t +_cairo_tee_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_tee_surface_t *surface = abstract_surface; + cairo_surface_wrapper_t *replicas; + cairo_int_status_t status; + int n, num_replicas; + + num_replicas = _cairo_array_num_elements (&surface->replicas); + replicas = _cairo_array_index (&surface->replicas, 0); + for (n = 0; n < num_replicas; n++) { + status = _cairo_surface_wrapper_stroke (&replicas[n], + op, source, 0, + path, style, + ctm, ctm_inverse, + tolerance, antialias, + clip); + if (unlikely (status)) + return status; + } + + return _cairo_surface_wrapper_stroke (&surface->primary, + op, source, 0, + path, style, + ctm, ctm_inverse, + tolerance, antialias, + clip); +} + +static cairo_int_status_t +_cairo_tee_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_tee_surface_t *surface = abstract_surface; + cairo_surface_wrapper_t *replicas; + cairo_int_status_t status; + int n, num_replicas; + + num_replicas = _cairo_array_num_elements (&surface->replicas); + replicas = _cairo_array_index (&surface->replicas, 0); + for (n = 0; n < num_replicas; n++) { + status = _cairo_surface_wrapper_fill (&replicas[n], + op, source, 0, + path, fill_rule, + tolerance, antialias, + clip); + if (unlikely (status)) + return status; + } + + return _cairo_surface_wrapper_fill (&surface->primary, + op, source, 0, + path, fill_rule, + tolerance, antialias, + clip); +} + +static cairo_bool_t +_cairo_tee_surface_has_show_text_glyphs (void *abstract_surface) +{ + return TRUE; +} + +static cairo_int_status_t +_cairo_tee_surface_show_text_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const char *utf8, + int utf8_len, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_tee_surface_t *surface = abstract_surface; + cairo_surface_wrapper_t *replicas; + cairo_int_status_t status; + int n, num_replicas; + cairo_glyph_t *glyphs_copy; + + /* XXX: This copying is ugly. */ + glyphs_copy = _cairo_malloc_ab (num_glyphs, sizeof (cairo_glyph_t)); + if (unlikely (glyphs_copy == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + num_replicas = _cairo_array_num_elements (&surface->replicas); + replicas = _cairo_array_index (&surface->replicas, 0); + for (n = 0; n < num_replicas; n++) { + memcpy (glyphs_copy, glyphs, sizeof (cairo_glyph_t) * num_glyphs); + status = _cairo_surface_wrapper_show_text_glyphs (&replicas[n], op, + source, 0, + utf8, utf8_len, + glyphs_copy, num_glyphs, + clusters, num_clusters, + cluster_flags, + scaled_font, + clip); + if (unlikely (status)) + goto CLEANUP; + } + + memcpy (glyphs_copy, glyphs, sizeof (cairo_glyph_t) * num_glyphs); + status = _cairo_surface_wrapper_show_text_glyphs (&surface->primary, op, + source, 0, + utf8, utf8_len, + glyphs_copy, num_glyphs, + clusters, num_clusters, + cluster_flags, + scaled_font, + clip); +CLEANUP: + free (glyphs_copy); + return status; +} + +static const cairo_surface_backend_t cairo_tee_surface_backend = { + CAIRO_SURFACE_TYPE_TEE, + _cairo_tee_surface_finish, + + _cairo_default_context_create, /* XXX */ + + _cairo_tee_surface_create_similar, + NULL, /* create similar image */ + NULL, /* map to image */ + NULL, /* unmap image */ + + _cairo_tee_surface_source, + _cairo_tee_surface_acquire_source_image, + _cairo_tee_surface_release_source_image, + _cairo_tee_surface_snapshot, + NULL, /* copy_page */ + NULL, /* show_page */ + _cairo_tee_surface_get_extents, + _cairo_tee_surface_get_font_options, + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + + _cairo_tee_surface_paint, + _cairo_tee_surface_mask, + _cairo_tee_surface_stroke, + _cairo_tee_surface_fill, + NULL, /* fill_stroke */ + + NULL, /* show_glyphs */ + + _cairo_tee_surface_has_show_text_glyphs, + _cairo_tee_surface_show_text_glyphs +}; + +/** + * cairo_tee_surface_create: + * @primary: the primary #cairo_surface_t + * + * Creates a new "tee" surface. + * + * The @primary surface is used when querying surface options, like + * font options and extents. + * + * Operations performed on the tee surface will be replayed on any + * surface added to it. + * + * Returns: the newly created surface + * + * Since: 1.10 + **/ +cairo_surface_t * +cairo_tee_surface_create (cairo_surface_t *primary) +{ + cairo_tee_surface_t *surface; + + if (unlikely (primary->status)) + return _cairo_surface_create_in_error (primary->status); + + surface = _cairo_calloc (sizeof (cairo_tee_surface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_surface_init (&surface->base, + &cairo_tee_surface_backend, + primary->device, + primary->content, + TRUE); /* is_vector */ + + _cairo_surface_wrapper_init (&surface->primary, primary); + + _cairo_array_init (&surface->replicas, sizeof (cairo_surface_wrapper_t)); + + return &surface->base; +} + +/** + * cairo_tee_surface_add: + * @abstract_surface: a #cairo_tee_surface_t + * @target: the surface to add + * + * Adds a new target surface to the list of replicas of a + * tee surface. + * + * Since: 1.10 + **/ +void +cairo_tee_surface_add (cairo_surface_t *abstract_surface, + cairo_surface_t *target) +{ + cairo_tee_surface_t *surface; + cairo_surface_wrapper_t replica; + cairo_status_t status; + + if (unlikely (abstract_surface->status)) + return; + if (unlikely (abstract_surface->finished)) { + status = _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return; + } + + if (abstract_surface->backend != &cairo_tee_surface_backend) { + status = _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + return; + } + + if (unlikely (target->status)) { + status = _cairo_surface_set_error (abstract_surface, target->status); + return; + } + + surface = (cairo_tee_surface_t *) abstract_surface; + + _cairo_surface_wrapper_init (&replica, target); + status = _cairo_array_append (&surface->replicas, &replica); + if (unlikely (status)) { + _cairo_surface_wrapper_fini (&replica); + status = _cairo_surface_set_error (&surface->base, status); + } +} + +/** + * cairo_tee_surface_remove: + * @abstract_surface: a #cairo_tee_surface_t + * @target: the surface to remove + * + * Removes the given surface from the list of replicas of a + * tee surface. + * + * Since: 1.10 + **/ +void +cairo_tee_surface_remove (cairo_surface_t *abstract_surface, + cairo_surface_t *target) +{ + cairo_tee_surface_t *surface; + cairo_surface_wrapper_t *replicas; + int n, num_replicas; + + if (unlikely (abstract_surface->status)) + return; + if (unlikely (abstract_surface->finished)) { + _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return; + } + + if (abstract_surface->backend != &cairo_tee_surface_backend) { + _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + return; + } + + surface = (cairo_tee_surface_t *) abstract_surface; + if (target == surface->primary.target) { + _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_INVALID_INDEX)); + return; + } + + num_replicas = _cairo_array_num_elements (&surface->replicas); + replicas = _cairo_array_index (&surface->replicas, 0); + for (n = 0; n < num_replicas; n++) { + if (replicas[n].target == target) + break; + } + + if (n == num_replicas) { + _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_INVALID_INDEX)); + return; + } + + _cairo_surface_wrapper_fini (&replicas[n]); + for (n++; n < num_replicas; n++) + replicas[n-1] = replicas[n]; + surface->replicas.num_elements--; /* XXX: cairo_array_remove()? */ +} + +/** + * cairo_tee_surface_index: + * @abstract_surface: a #cairo_tee_surface_t + * @index: the index of the replica to retrieve + * + * Retrieves the replica surface at the given index. + * + * The primary surface used to create the #cairo_tee_surface_t is + * always set at the zero index. + * + * Returns: the surface at the given index + * + * Since: 1.10 + **/ +cairo_surface_t * +cairo_tee_surface_index (cairo_surface_t *abstract_surface, + unsigned int index) +{ + cairo_tee_surface_t *surface; + + if (unlikely (abstract_surface->status)) + return _cairo_surface_create_in_error (abstract_surface->status); + if (unlikely (abstract_surface->finished)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + if (abstract_surface->backend != &cairo_tee_surface_backend) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + + surface = (cairo_tee_surface_t *) abstract_surface; + if (index == 0) { + return surface->primary.target; + } else { + cairo_surface_wrapper_t *replica; + + index--; + + if (index >= _cairo_array_num_elements (&surface->replicas)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_INDEX)); + + replica = _cairo_array_index (&surface->replicas, index); + return replica->target; + } +} diff --git a/local/recipes/libs/cairo/source/src/cairo-tee.h b/local/recipes/libs/cairo/source/src/cairo-tee.h new file mode 100644 index 0000000000..58264ffff5 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-tee.h @@ -0,0 +1,66 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_TEE_H +#define CAIRO_TEE_H + +#include "cairo.h" + +#if CAIRO_HAS_TEE_SURFACE + +CAIRO_BEGIN_DECLS + +cairo_public cairo_surface_t * +cairo_tee_surface_create (cairo_surface_t *primary); + +cairo_public void +cairo_tee_surface_add (cairo_surface_t *abstract_surface, + cairo_surface_t *target); + +cairo_public void +cairo_tee_surface_remove (cairo_surface_t *abstract_surface, + cairo_surface_t *target); + +cairo_public cairo_surface_t * +cairo_tee_surface_index (cairo_surface_t *abstract_surface, + unsigned int index); + +CAIRO_END_DECLS + +#else /*CAIRO_HAS_TEE_SURFACE*/ +# error Cairo was not compiled with support for the TEE backend +#endif /*CAIRO_HAS_TEE_SURFACE*/ + +#endif /*CAIRO_TEE_H*/ diff --git a/local/recipes/libs/cairo/source/src/cairo-time-private.h b/local/recipes/libs/cairo/source/src/cairo-time-private.h new file mode 100644 index 0000000000..06dc912b43 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-time-private.h @@ -0,0 +1,94 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright (C) 2011 Andrea Canciani + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of the + * copyright holders not be used in advertising or publicity + * pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied + * warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Authors: Andrea Canciani + * + */ + +#ifndef CAIRO_TIME_PRIVATE_H +#define CAIRO_TIME_PRIVATE_H + +#include "cairo-compiler-private.h" +#include "cairo-wideint-private.h" + +/* Make the base type signed for easier arithmetic */ +typedef cairo_int64_t cairo_time_t; + +#define _cairo_time_add _cairo_int64_add +#define _cairo_time_sub _cairo_int64_sub +#define _cairo_time_gt _cairo_int64_gt +#define _cairo_time_lt _cairo_int64_lt + +#define _cairo_time_to_double _cairo_int64_to_double +#define _cairo_time_from_double _cairo_double_to_int64 + +cairo_private int +_cairo_time_cmp (const void *a, + const void *b); + +cairo_private double +_cairo_time_to_s (cairo_time_t t); + +cairo_private cairo_time_t +_cairo_time_from_s (double t); + +cairo_private cairo_time_t +_cairo_time_get (void); + +static cairo_always_inline cairo_time_t +_cairo_time_get_delta (cairo_time_t t) +{ + cairo_time_t now; + + now = _cairo_time_get (); + + return _cairo_time_sub (now, t); +} + +static cairo_always_inline double +_cairo_time_to_ns (cairo_time_t t) +{ + return 1.e9 * _cairo_time_to_s (t); +} + +static cairo_always_inline cairo_time_t +_cairo_time_max (cairo_time_t a, cairo_time_t b) +{ + if (_cairo_int64_gt (a, b)) + return a; + else + return b; +} + +static cairo_always_inline cairo_time_t +_cairo_time_min (cairo_time_t a, cairo_time_t b) +{ + if (_cairo_int64_lt (a, b)) + return a; + else + return b; +} + +#endif diff --git a/local/recipes/libs/cairo/source/src/cairo-time.c b/local/recipes/libs/cairo/source/src/cairo-time.c new file mode 100644 index 0000000000..05b64e1571 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-time.c @@ -0,0 +1,196 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright (c) 2007 Netlabs + * Copyright (c) 2006 Mozilla Corporation + * Copyright (c) 2006 Red Hat, Inc. + * Copyright (c) 2011 Andrea Canciani + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the authors not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The authors make no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Peter Weilbacher + * Vladimir Vukicevic + * Carl Worth + * Andrea Canciani + */ + +#include "cairoint.h" + +#include "cairo-time-private.h" + +#if HAVE_CLOCK_GETTIME +#if defined(CLOCK_MONOTONIC_RAW) +#define CAIRO_CLOCK CLOCK_MONOTONIC_RAW +#elif defined(CLOCK_MONOTONIC) +#define CAIRO_CLOCK CLOCK_MONOTONIC +#endif +#endif + +#if defined(__APPLE__) +#include + +static cairo_always_inline double +_cairo_time_1s (void) +{ + mach_timebase_info_data_t freq; + + mach_timebase_info (&freq); + + return 1000000000. * freq.denom / freq.numer; +} + +cairo_time_t +_cairo_time_get (void) +{ + return mach_absolute_time (); +} + +#elif _WIN32 +#include + +static cairo_always_inline double +_cairo_time_1s (void) +{ + LARGE_INTEGER freq; + + QueryPerformanceFrequency (&freq); + + return freq.QuadPart; +} + +#ifndef HAVE_UINT64_T +static cairo_always_inline cairo_time_t +_cairo_time_from_large_integer (LARGE_INTEGER t) +{ + cairo_int64_t r; + + r = _cairo_int64_lsl (_cairo_int32_to_int64 (t.HighPart), 32); + r = _cairo_int64_add (r, _cairo_int32_to_int64 (t.LowPart)); + + return r; +} +#else +static cairo_always_inline cairo_time_t +_cairo_time_from_large_integer (LARGE_INTEGER t) +{ + return t.QuadPart; +} +#endif + +cairo_time_t +_cairo_time_get (void) +{ + LARGE_INTEGER t; + + QueryPerformanceCounter (&t); + + return _cairo_time_from_large_integer(t); +} + +#elif defined(CAIRO_CLOCK) +#include + +static cairo_always_inline double +_cairo_time_1s (void) +{ + return 1000000000; +} + +cairo_time_t +_cairo_time_get (void) +{ + struct timespec t; + cairo_time_t r; + + clock_gettime (CAIRO_CLOCK, &t); + + r = _cairo_double_to_int64 (_cairo_time_1s ()); + r = _cairo_int64_mul (r, _cairo_int32_to_int64 (t.tv_sec)); + r = _cairo_int64_add (r, _cairo_int32_to_int64 (t.tv_nsec)); + + return r; +} + +#else +#include + +static cairo_always_inline double +_cairo_time_1s (void) +{ + return 1000000; +} + +cairo_time_t +_cairo_time_get (void) +{ + struct timeval t; + cairo_time_t r; + + gettimeofday (&t, NULL); + + r = _cairo_double_to_int64 (_cairo_time_1s ()); + r = _cairo_int64_mul (r, _cairo_int32_to_int64 (t.tv_sec)); + r = _cairo_int64_add (r, _cairo_int32_to_int64 (t.tv_usec)); + + return r; +} + +#endif + +int +_cairo_time_cmp (const void *a, + const void *b) +{ + const cairo_time_t *ta = a, *tb = b; + return _cairo_int64_cmp (*ta, *tb); +} + +static double +_cairo_time_ticks_per_sec (void) +{ + static double ticks = 0; + + if (unlikely (ticks == 0)) + ticks = _cairo_time_1s (); + + return ticks; +} + +static double +_cairo_time_s_per_tick (void) +{ + static double s = 0; + + if (unlikely (s == 0)) + s = 1. / _cairo_time_ticks_per_sec (); + + return s; +} + +double +_cairo_time_to_s (cairo_time_t t) +{ + return _cairo_int64_to_double (t) * _cairo_time_s_per_tick (); +} + +cairo_time_t +_cairo_time_from_s (double t) +{ + return _cairo_double_to_int64 (t * _cairo_time_ticks_per_sec ()); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-tor-scan-converter.c b/local/recipes/libs/cairo/source/src/cairo-tor-scan-converter.c new file mode 100644 index 0000000000..f29359ce4e --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-tor-scan-converter.c @@ -0,0 +1,1899 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* glitter-paths - polygon scan converter + * + * Copyright (c) 2008 M Joonas Pihlaja + * Copyright (c) 2007 David Turner + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +/* This is the Glitter paths scan converter incorporated into cairo. + * The source is from commit 734c53237a867a773640bd5b64816249fa1730f8 + * of + * + * https://gitweb.freedesktop.org/?p=users/joonas/glitter-paths + */ +/* Glitter-paths is a stand alone polygon rasteriser derived from + * David Turner's reimplementation of Tor Anderssons's 15x17 + * supersampling rasteriser from the Apparition graphics library. The + * main new feature here is cheaply choosing per-scan line between + * doing fully analytical coverage computation for an entire row at a + * time vs. using a supersampling approach. + * + * David Turner's code can be found at + * + * http://david.freetype.org/rasterizer-shootout/raster-comparison-20070813.tar.bz2 + * + * In particular this file incorporates large parts of ftgrays_tor10.h + * from raster-comparison-20070813.tar.bz2 + */ +/* Overview + * + * A scan converter's basic purpose to take polygon edges and convert + * them into an RLE compressed A8 mask. This one works in two phases: + * gathering edges and generating spans. + * + * 1) As the user feeds the scan converter edges they are vertically + * clipped and bucketted into a _polygon_ data structure. The edges + * are also snapped from the user's coordinates to the subpixel grid + * coordinates used during scan conversion. + * + * user + * | + * | edges + * V + * polygon buckets + * + * 2) Generating spans works by performing a vertical sweep of pixel + * rows from top to bottom and maintaining an _active_list_ of edges + * that intersect the row. From the active list the fill rule + * determines which edges are the left and right edges of the start of + * each span, and their contribution is then accumulated into a pixel + * coverage list (_cell_list_) as coverage deltas. Once the coverage + * deltas of all edges are known we can form spans of constant pixel + * coverage by summing the deltas during a traversal of the cell list. + * At the end of a pixel row the cell list is sent to a coverage + * blitter for rendering to some target surface. + * + * The pixel coverages are computed by either supersampling the row + * and box filtering a mono rasterisation, or by computing the exact + * coverages of edges in the active list. The supersampling method is + * used whenever some edge starts or stops within the row or there are + * edge intersections in the row. + * + * polygon bucket for \ + * current pixel row | + * | | + * | activate new edges | Repeat GRID_Y times if we + * V \ are supersampling this row, + * active list / or just once if we're computing + * | | analytical coverage. + * | coverage deltas | + * V | + * pixel coverage list / + * | + * V + * coverage blitter + */ +#include "cairoint.h" +#include "cairo-spans-private.h" +#include "cairo-error-private.h" + +#include +#include +#include +#include + +/*------------------------------------------------------------------------- + * cairo specific config + */ +#define I static + +/* Prefer cairo's status type. */ +#define GLITTER_HAVE_STATUS_T 1 +#define GLITTER_STATUS_SUCCESS CAIRO_STATUS_SUCCESS +#define GLITTER_STATUS_NO_MEMORY CAIRO_STATUS_NO_MEMORY +typedef cairo_status_t glitter_status_t; + +/* The input coordinate scale and the rasterisation grid scales. */ +#define GLITTER_INPUT_BITS CAIRO_FIXED_FRAC_BITS +#define GRID_X_BITS CAIRO_FIXED_FRAC_BITS +#define GRID_Y 15 + +/* Set glitter up to use a cairo span renderer to do the coverage + * blitting. */ +struct pool; +struct cell_list; + +/*------------------------------------------------------------------------- + * glitter-paths.h + */ + +/* "Input scaled" numbers are fixed precision reals with multiplier + * 2**GLITTER_INPUT_BITS. Input coordinates are given to glitter as + * pixel scaled numbers. These get converted to the internal grid + * scaled numbers as soon as possible. Internal overflow is possible + * if GRID_X/Y inside glitter-paths.c is larger than + * 1< +#include +#include + +/* All polygon coordinates are snapped onto a subsample grid. "Grid + * scaled" numbers are fixed precision reals with multiplier GRID_X or + * GRID_Y. */ +typedef int grid_scaled_t; +typedef int grid_scaled_x_t; +typedef int grid_scaled_y_t; + +/* Default x/y scale factors. + * You can either define GRID_X/Y_BITS to get a power-of-two scale + * or define GRID_X/Y separately. */ +#if !defined(GRID_X) && !defined(GRID_X_BITS) +# define GRID_X_BITS 8 +#endif +#if !defined(GRID_Y) && !defined(GRID_Y_BITS) +# define GRID_Y 15 +#endif + +/* Use GRID_X/Y_BITS to define GRID_X/Y if they're available. */ +#ifdef GRID_X_BITS +# define GRID_X (1 << GRID_X_BITS) +#endif +#ifdef GRID_Y_BITS +# define GRID_Y (1 << GRID_Y_BITS) +#endif + +/* The GRID_X_TO_INT_FRAC macro splits a grid scaled coordinate into + * integer and fractional parts. The integer part is floored. */ +#if defined(GRID_X_TO_INT_FRAC) + /* do nothing */ +#elif defined(GRID_X_BITS) +# define GRID_X_TO_INT_FRAC(x, i, f) \ + _GRID_TO_INT_FRAC_shift(x, i, f, GRID_X_BITS) +#else +# define GRID_X_TO_INT_FRAC(x, i, f) \ + _GRID_TO_INT_FRAC_general(x, i, f, GRID_X) +#endif + +#define _GRID_TO_INT_FRAC_general(t, i, f, m) do { \ + (i) = (t) / (m); \ + (f) = (t) % (m); \ + if ((f) < 0) { \ + --(i); \ + (f) += (m); \ + } \ +} while (0) + +#define _GRID_TO_INT_FRAC_shift(t, i, f, b) do { \ + (f) = (t) & ((1 << (b)) - 1); \ + (i) = (t) >> (b); \ +} while (0) + +/* A grid area is a real in [0,1] scaled by 2*GRID_X*GRID_Y. We want + * to be able to represent exactly areas of subpixel trapezoids whose + * vertices are given in grid scaled coordinates. The scale factor + * comes from needing to accurately represent the area 0.5*dx*dy of a + * triangle with base dx and height dy in grid scaled numbers. */ +#define GRID_XY (2*GRID_X*GRID_Y) /* Unit area on the grid. */ + +/* GRID_AREA_TO_ALPHA(area): map [0,GRID_XY] to [0,255]. */ +#if GRID_XY == 510 +# define GRID_AREA_TO_ALPHA(c) (((c)+1) >> 1) +#elif GRID_XY == 255 +# define GRID_AREA_TO_ALPHA(c) (c) +#elif GRID_XY == 64 +# define GRID_AREA_TO_ALPHA(c) (((c) << 2) | -(((c) & 0x40) >> 6)) +#elif GRID_XY == 128 +# define GRID_AREA_TO_ALPHA(c) ((((c) << 1) | -((c) >> 7)) & 255) +#elif GRID_XY == 256 +# define GRID_AREA_TO_ALPHA(c) (((c) | -((c) >> 8)) & 255) +#elif GRID_XY == 15 +# define GRID_AREA_TO_ALPHA(c) (((c) << 4) + (c)) +#elif GRID_XY == 2*256*15 +# define GRID_AREA_TO_ALPHA(c) (((c) + ((c)<<4) + 256) >> 9) +#else +# define GRID_AREA_TO_ALPHA(c) (((c)*255 + GRID_XY/2) / GRID_XY) +#endif + +#define UNROLL3(x) x x x + +struct quorem { + int32_t quo; + int64_t rem; +}; + +/* Header for a chunk of memory in a memory pool. */ +struct _pool_chunk { + /* # bytes used in this chunk. */ + size_t size; + + /* # bytes total in this chunk */ + size_t capacity; + + /* Pointer to the previous chunk or %NULL if this is the sentinel + * chunk in the pool header. */ + struct _pool_chunk *prev_chunk; + + /* Actual data starts here. Well aligned even for 64 bit types. */ + int64_t data; +}; + +/* The int64_t data member of _pool_chunk just exists to enforce alignment, + * it shouldn't be included in the allocated size for the struct. */ +#define SIZEOF_POOL_CHUNK (sizeof(struct _pool_chunk) - sizeof(int64_t)) + +/* A memory pool. This is supposed to be embedded on the stack or + * within some other structure. It may optionally be followed by an + * embedded array from which requests are fulfilled until + * malloc needs to be called to allocate a first real chunk. */ +struct pool { + /* Chunk we're allocating from. */ + struct _pool_chunk *current; + + jmp_buf *jmp; + + /* Free list of previously allocated chunks. All have >= default + * capacity. */ + struct _pool_chunk *first_free; + + /* The default capacity of a chunk. */ + size_t default_capacity; + + /* Header for the sentinel chunk. Directly following the pool + * struct should be some space for embedded elements from which + * the sentinel chunk allocates from. This is expressed as a char + * array so that the 'int64_t data' member of _pool_chunk isn't + * included. This way embedding struct pool in other structs works + * without wasting space. */ + char sentinel[SIZEOF_POOL_CHUNK]; +}; + +/* A polygon edge. */ +struct edge { + /* Next in y-bucket or active list. */ + struct edge *next, *prev; + + /* The clipped y of the top of the edge. */ + grid_scaled_y_t ytop; + + /* Number of subsample rows remaining to scan convert of this + * edge. */ + grid_scaled_y_t height_left; + + /* Original sign of the edge: +1 for downwards, -1 for upwards + * edges. */ + int dir; + int cell; + + /* Current x coordinate while the edge is on the active + * list. Initialised to the x coordinate of the top of the + * edge. The quotient is in grid_scaled_x_t units and the + * remainder is mod dy in grid_scaled_y_t units.*/ + struct quorem x; + + /* Advance of the current x when moving down a subsample line. */ + struct quorem dxdy; + + /* Advance of the current x when moving down a full pixel + * row. Only initialised when the height of the edge is large + * enough that there's a chance the edge could be stepped by a + * full row's worth of subsample rows at a time. */ + struct quorem dxdy_full; + + /* y2-y1 after orienting the edge downwards. */ + int64_t dy; +}; + +#define EDGE_Y_BUCKET_INDEX(y, ymin) (((y) - (ymin))/GRID_Y) + +/* A collection of sorted and vertically clipped edges of the polygon. + * Edges are moved from the polygon to an active list while scan + * converting. */ +struct polygon { + /* The vertical clip extents. */ + grid_scaled_y_t ymin, ymax; + + /* Array of edges all starting in the same bucket. An edge is put + * into bucket EDGE_BUCKET_INDEX(edge->ytop, polygon->ymin) when + * it is added to the polygon. */ + struct edge **y_buckets; + struct edge *y_buckets_embedded[64]; + + struct { + struct pool base[1]; + struct edge embedded[32]; + } edge_pool; +}; + +/* A cell records the effect on pixel coverage of polygon edges + * passing through a pixel. It contains two accumulators of pixel + * coverage. + * + * Consider the effects of a polygon edge on the coverage of a pixel + * it intersects and that of the following one. The coverage of the + * following pixel is the height of the edge multiplied by the width + * of the pixel, and the coverage of the pixel itself is the area of + * the trapezoid formed by the edge and the right side of the pixel. + * + * +-----------------------+-----------------------+ + * | | | + * | | | + * |_______________________|_______________________| + * | \...................|.......................|\ + * | \..................|.......................| | + * | \.................|.......................| | + * | \....covered.....|.......................| | + * | \....area.......|.......................| } covered height + * | \..............|.......................| | + * |uncovered\.............|.......................| | + * | area \............|.......................| | + * |___________\...........|.......................|/ + * | | | + * | | | + * | | | + * +-----------------------+-----------------------+ + * + * Since the coverage of the following pixel will always be a multiple + * of the width of the pixel, we can store the height of the covered + * area instead. The coverage of the pixel itself is the total + * coverage minus the area of the uncovered area to the left of the + * edge. As it's faster to compute the uncovered area we only store + * that and subtract it from the total coverage later when forming + * spans to blit. + * + * The heights and areas are signed, with left edges of the polygon + * having positive sign and right edges having negative sign. When + * two edges intersect they swap their left/rightness so their + * contribution above and below the intersection point must be + * computed separately. */ +struct cell { + struct cell *next; + int x; + int16_t uncovered_area; + int16_t covered_height; +}; + +/* A cell list represents the scan line sparsely as cells ordered by + * ascending x. It is geared towards scanning the cells in order + * using an internal cursor. */ +struct cell_list { + /* Sentinel nodes */ + struct cell head, tail; + + /* Cursor state for iterating through the cell list. */ + struct cell *cursor, *rewind; + + /* Cells in the cell list are owned by the cell list and are + * allocated from this pool. */ + struct { + struct pool base[1]; + struct cell embedded[32]; + } cell_pool; +}; + +struct cell_pair { + struct cell *cell1; + struct cell *cell2; +}; + +/* The active list contains edges in the current scan line ordered by + * the x-coordinate of the intercept of the edge and the scan line. */ +struct active_list { + /* Leftmost edge on the current scan line. */ + struct edge head, tail; + + /* A lower bound on the height of the active edges is used to + * estimate how soon some active edge ends. We can't advance the + * scan conversion by a full pixel row if an edge ends somewhere + * within it. */ + grid_scaled_y_t min_height; + int is_vertical; +}; + +struct glitter_scan_converter { + struct polygon polygon[1]; + struct active_list active[1]; + struct cell_list coverages[1]; + + cairo_half_open_span_t *spans; + cairo_half_open_span_t spans_embedded[64]; + + /* Clip box. */ + grid_scaled_x_t xmin, xmax; + grid_scaled_y_t ymin, ymax; +}; + +static struct _pool_chunk * +_pool_chunk_init( + struct _pool_chunk *p, + struct _pool_chunk *prev_chunk, + size_t capacity) +{ + p->prev_chunk = prev_chunk; + p->size = 0; + p->capacity = capacity; + return p; +} + +static struct _pool_chunk * +_pool_chunk_create(struct pool *pool, size_t size) +{ + struct _pool_chunk *p; + + p = _cairo_malloc (SIZEOF_POOL_CHUNK + size); + if (unlikely (NULL == p)) + longjmp (*pool->jmp, _cairo_error (CAIRO_STATUS_NO_MEMORY)); + + return _pool_chunk_init(p, pool->current, size); +} + +static void +pool_init(struct pool *pool, + jmp_buf *jmp, + size_t default_capacity, + size_t embedded_capacity) +{ + pool->jmp = jmp; + pool->current = (void*) pool->sentinel; + pool->first_free = NULL; + pool->default_capacity = default_capacity; + _pool_chunk_init(pool->current, NULL, embedded_capacity); +} + +static void +pool_fini(struct pool *pool) +{ + struct _pool_chunk *p = pool->current; + do { + while (NULL != p) { + struct _pool_chunk *prev = p->prev_chunk; + if (p != (void *) pool->sentinel) + free(p); + p = prev; + } + p = pool->first_free; + pool->first_free = NULL; + } while (NULL != p); +} + +/* Satisfy an allocation by first allocating a new large enough chunk + * and adding it to the head of the pool's chunk list. This function + * is called as a fallback if pool_alloc() couldn't do a quick + * allocation from the current chunk in the pool. */ +static void * +_pool_alloc_from_new_chunk( + struct pool *pool, + size_t size) +{ + struct _pool_chunk *chunk; + void *obj; + size_t capacity; + + /* If the allocation is smaller than the default chunk size then + * try getting a chunk off the free list. Force alloc of a new + * chunk for large requests. */ + capacity = size; + chunk = NULL; + if (size < pool->default_capacity) { + capacity = pool->default_capacity; + chunk = pool->first_free; + if (chunk) { + pool->first_free = chunk->prev_chunk; + _pool_chunk_init(chunk, pool->current, chunk->capacity); + } + } + + if (NULL == chunk) + chunk = _pool_chunk_create (pool, capacity); + pool->current = chunk; + + obj = ((unsigned char*)&chunk->data + chunk->size); + chunk->size += size; + return obj; +} + +/* Allocate size bytes from the pool. The first allocated address + * returned from a pool is aligned to 8 bytes. Subsequent + * addresses will maintain alignment as long as multiples of 8 are + * allocated. Returns the address of a new memory area or %NULL on + * allocation failures. The pool retains ownership of the returned + * memory. */ +inline static void * +pool_alloc (struct pool *pool, size_t size) +{ + struct _pool_chunk *chunk = pool->current; + + if (size <= chunk->capacity - chunk->size) { + void *obj = ((unsigned char*)&chunk->data + chunk->size); + chunk->size += size; + return obj; + } else { + return _pool_alloc_from_new_chunk(pool, size); + } +} + +/* Relinquish all pool_alloced memory back to the pool. */ +static void +pool_reset (struct pool *pool) +{ + /* Transfer all used chunks to the chunk free list. */ + struct _pool_chunk *chunk = pool->current; + if (chunk != (void *) pool->sentinel) { + while (chunk->prev_chunk != (void *) pool->sentinel) { + chunk = chunk->prev_chunk; + } + chunk->prev_chunk = pool->first_free; + pool->first_free = pool->current; + } + /* Reset the sentinel as the current chunk. */ + pool->current = (void *) pool->sentinel; + pool->current->size = 0; +} + +/* Rewinds the cell list's cursor to the beginning. After rewinding + * we're good to cell_list_find() the cell any x coordinate. */ +inline static void +cell_list_rewind (struct cell_list *cells) +{ + cells->cursor = &cells->head; +} + +inline static void +cell_list_maybe_rewind (struct cell_list *cells, int x) +{ + if (x < cells->cursor->x) { + cells->cursor = cells->rewind; + if (x < cells->cursor->x) + cells->cursor = &cells->head; + } +} + +inline static void +cell_list_set_rewind (struct cell_list *cells) +{ + cells->rewind = cells->cursor; +} + +static void +cell_list_init(struct cell_list *cells, jmp_buf *jmp) +{ + pool_init(cells->cell_pool.base, jmp, + 256*sizeof(struct cell), + sizeof(cells->cell_pool.embedded)); + cells->tail.next = NULL; + cells->tail.x = INT_MAX; + cells->head.x = INT_MIN; + cells->head.next = &cells->tail; + cell_list_rewind (cells); +} + +static void +cell_list_fini(struct cell_list *cells) +{ + pool_fini (cells->cell_pool.base); +} + +/* Empty the cell list. This is called at the start of every pixel + * row. */ +inline static void +cell_list_reset (struct cell_list *cells) +{ + cell_list_rewind (cells); + cells->head.next = &cells->tail; + pool_reset (cells->cell_pool.base); +} + +inline static struct cell * +cell_list_alloc (struct cell_list *cells, + struct cell *tail, + int x) +{ + struct cell *cell; + + cell = pool_alloc (cells->cell_pool.base, sizeof (struct cell)); + cell->next = tail->next; + tail->next = cell; + cell->x = x; + *(uint32_t *)&cell->uncovered_area = 0; + + return cell; +} + +/* Find a cell at the given x-coordinate. Returns %NULL if a new cell + * needed to be allocated but couldn't be. Cells must be found with + * non-decreasing x-coordinate until the cell list is rewound using + * cell_list_rewind(). Ownership of the returned cell is retained by + * the cell list. */ +inline static struct cell * +cell_list_find (struct cell_list *cells, int x) +{ + struct cell *tail = cells->cursor; + + if (tail->x == x) + return tail; + + while (1) { + UNROLL3({ + if (tail->next->x > x) + break; + tail = tail->next; + }); + } + + if (tail->x != x) + tail = cell_list_alloc (cells, tail, x); + return cells->cursor = tail; + +} + +/* Find two cells at x1 and x2. This is exactly equivalent + * to + * + * pair.cell1 = cell_list_find(cells, x1); + * pair.cell2 = cell_list_find(cells, x2); + * + * except with less function call overhead. */ +inline static struct cell_pair +cell_list_find_pair(struct cell_list *cells, int x1, int x2) +{ + struct cell_pair pair; + + pair.cell1 = cells->cursor; + while (1) { + UNROLL3({ + if (pair.cell1->next->x > x1) + break; + pair.cell1 = pair.cell1->next; + }); + } + if (pair.cell1->x != x1) + pair.cell1 = cell_list_alloc (cells, pair.cell1, x1); + + pair.cell2 = pair.cell1; + while (1) { + UNROLL3({ + if (pair.cell2->next->x > x2) + break; + pair.cell2 = pair.cell2->next; + }); + } + if (pair.cell2->x != x2) + pair.cell2 = cell_list_alloc (cells, pair.cell2, x2); + + cells->cursor = pair.cell2; + return pair; +} + +/* Add a subpixel span covering [x1, x2) to the coverage cells. */ +inline static void +cell_list_add_subspan(struct cell_list *cells, + grid_scaled_x_t x1, + grid_scaled_x_t x2) +{ + int ix1, fx1; + int ix2, fx2; + + if (x1 == x2) + return; + + GRID_X_TO_INT_FRAC(x1, ix1, fx1); + GRID_X_TO_INT_FRAC(x2, ix2, fx2); + + if (ix1 != ix2) { + struct cell_pair p; + p = cell_list_find_pair(cells, ix1, ix2); + p.cell1->uncovered_area += 2*fx1; + ++p.cell1->covered_height; + p.cell2->uncovered_area -= 2*fx2; + --p.cell2->covered_height; + } else { + struct cell *cell = cell_list_find(cells, ix1); + cell->uncovered_area += 2*(fx1-fx2); + } +} + +inline static void full_step (struct edge *e) +{ + if (e->dy == 0) + return; + + e->x.quo += e->dxdy_full.quo; + e->x.rem += e->dxdy_full.rem; + if (e->x.rem < 0) { + e->x.quo--; + e->x.rem += e->dy; + } else if (e->x.rem >= e->dy) { + ++e->x.quo; + e->x.rem -= e->dy; + } + + e->cell = e->x.quo + (e->x.rem >= e->dy/2); +} + + +/* Adds the analytical coverage of an edge crossing the current pixel + * row to the coverage cells and advances the edge's x position to the + * following row. + * + * This function is only called when we know that during this pixel row: + * + * 1) The relative order of all edges on the active list doesn't + * change. In particular, no edges intersect within this row to pixel + * precision. + * + * 2) No new edges start in this row. + * + * 3) No existing edges end mid-row. + * + * This function depends on being called with all edges from the + * active list in the order they appear on the list (i.e. with + * non-decreasing x-coordinate.) */ +static void +cell_list_render_edge(struct cell_list *cells, + struct edge *edge, + int sign) +{ + struct quorem x1, x2; + grid_scaled_x_t fx1, fx2; + int ix1, ix2; + + x1 = edge->x; + full_step (edge); + x2 = edge->x; + + /* Step back from the sample location (half-subrow) to the pixel origin */ + if (edge->dy) { + x1.quo -= edge->dxdy.quo / 2; + x1.rem -= edge->dxdy.rem / 2; + if (x1.rem < 0) { + --x1.quo; + x1.rem += edge->dy; + } else if (x1.rem >= edge->dy) { + ++x1.quo; + x1.rem -= edge->dy; + } + + x2.quo -= edge->dxdy.quo / 2; + x2.rem -= edge->dxdy.rem / 2; + if (x2.rem < 0) { + --x2.quo; + x2.rem += edge->dy; + } else if (x2.rem >= edge->dy) { + ++x2.quo; + x2.rem -= edge->dy; + } + } + + GRID_X_TO_INT_FRAC(x1.quo, ix1, fx1); + GRID_X_TO_INT_FRAC(x2.quo, ix2, fx2); + + cell_list_maybe_rewind(cells, MIN(ix1, ix2)); + + /* Edge is entirely within a column? */ + if (ix1 == ix2) { + /* We always know that ix1 is >= the cell list cursor in this + * case due to the no-intersections precondition. */ + struct cell *cell = cell_list_find(cells, ix1); + cell->covered_height += sign*GRID_Y; + cell->uncovered_area += sign*(fx1 + fx2)*GRID_Y; + return; + } + + /* Orient the edge left-to-right. */ + if (ix2 < ix1) { + struct quorem tx; + int t; + + t = ix1; + ix1 = ix2; + ix2 = t; + + t = fx1; + fx1 = fx2; + fx2 = t; + + tx = x1; + x1 = x2; + x2 = tx; + } + + /* Add coverage for all pixels [ix1,ix2] on this row crossed + * by the edge. */ + { + struct cell_pair pair; + struct quorem y; + int64_t tmp, dx; + int y_last; + + dx = (x2.quo - x1.quo) * edge->dy + (x2.rem - x1.rem); + + tmp = (ix1 + 1) * GRID_X * edge->dy; + tmp -= x1.quo * edge->dy + x1.rem; + tmp *= GRID_Y; + + y.quo = tmp / dx; + y.rem = tmp % dx; + + /* When rendering a previous edge on the active list we may + * advance the cell list cursor past the leftmost pixel of the + * current edge even though the two edges don't intersect. + * e.g. consider two edges going down and rightwards: + * + * --\_+---\_+-----+-----+---- + * \_ \_ | | + * | \_ | \_ | | + * | \_| \_| | + * | \_ \_ | + * ----+-----+-\---+-\---+---- + * + * The left edge touches cells past the starting cell of the + * right edge. Fortunately such cases are rare. + */ + + pair = cell_list_find_pair(cells, ix1, ix1+1); + pair.cell1->uncovered_area += sign*y.quo*(GRID_X + fx1); + pair.cell1->covered_height += sign*y.quo; + y_last = y.quo; + + if (ix1+1 < ix2) { + struct cell *cell = pair.cell2; + struct quorem dydx_full; + + dydx_full.quo = GRID_Y * GRID_X * edge->dy / dx; + dydx_full.rem = GRID_Y * GRID_X * edge->dy % dx; + + ++ix1; + do { + y.quo += dydx_full.quo; + y.rem += dydx_full.rem; + if (y.rem >= dx) { + y.quo++; + y.rem -= dx; + } + + cell->uncovered_area += sign*(y.quo - y_last)*GRID_X; + cell->covered_height += sign*(y.quo - y_last); + y_last = y.quo; + + ++ix1; + cell = cell_list_find(cells, ix1); + } while (ix1 != ix2); + + pair.cell2 = cell; + } + pair.cell2->uncovered_area += sign*(GRID_Y - y_last)*fx2; + pair.cell2->covered_height += sign*(GRID_Y - y_last); + } +} + +static void +polygon_init (struct polygon *polygon, jmp_buf *jmp) +{ + polygon->ymin = polygon->ymax = 0; + polygon->y_buckets = polygon->y_buckets_embedded; + pool_init (polygon->edge_pool.base, jmp, + 8192 - sizeof (struct _pool_chunk), + sizeof (polygon->edge_pool.embedded)); +} + +static void +polygon_fini (struct polygon *polygon) +{ + if (polygon->y_buckets != polygon->y_buckets_embedded) + free (polygon->y_buckets); + + pool_fini (polygon->edge_pool.base); +} + +/* Empties the polygon of all edges. The polygon is then prepared to + * receive new edges and clip them to the vertical range + * [ymin,ymax). */ +static glitter_status_t +polygon_reset (struct polygon *polygon, + grid_scaled_y_t ymin, + grid_scaled_y_t ymax) +{ + unsigned h = ymax - ymin; + unsigned num_buckets = EDGE_Y_BUCKET_INDEX(ymax + GRID_Y-1, ymin); + + pool_reset(polygon->edge_pool.base); + + if (unlikely (h > 0x7FFFFFFFU - GRID_Y)) + goto bail_no_mem; /* even if you could, you wouldn't want to. */ + + if (polygon->y_buckets != polygon->y_buckets_embedded) + free (polygon->y_buckets); + + polygon->y_buckets = polygon->y_buckets_embedded; + if (num_buckets > ARRAY_LENGTH (polygon->y_buckets_embedded)) { + polygon->y_buckets = _cairo_malloc_ab (num_buckets, + sizeof (struct edge *)); + if (unlikely (NULL == polygon->y_buckets)) + goto bail_no_mem; + } + memset (polygon->y_buckets, 0, num_buckets * sizeof (struct edge *)); + + polygon->ymin = ymin; + polygon->ymax = ymax; + return GLITTER_STATUS_SUCCESS; + +bail_no_mem: + polygon->ymin = 0; + polygon->ymax = 0; + return GLITTER_STATUS_NO_MEMORY; +} + +static void +_polygon_insert_edge_into_its_y_bucket(struct polygon *polygon, + struct edge *e) +{ + unsigned ix = EDGE_Y_BUCKET_INDEX(e->ytop, polygon->ymin); + struct edge **ptail = &polygon->y_buckets[ix]; + e->next = *ptail; + *ptail = e; +} + +static void +active_list_reset (struct active_list *active) +{ + active->head.height_left = INT_MAX; + active->head.dy = 0; + active->head.cell = INT_MIN; + active->head.prev = NULL; + active->head.next = &active->tail; + active->tail.prev = &active->head; + active->tail.next = NULL; + active->tail.cell = INT_MAX; + active->tail.height_left = INT_MAX; + active->tail.dy = 0; + active->min_height = 0; + active->is_vertical = 1; +} + +static void +active_list_init(struct active_list *active) +{ + active_list_reset(active); +} + +/* + * Merge two sorted edge lists. + * Input: + * - head_a: The head of the first list. + * - head_b: The head of the second list; head_b cannot be NULL. + * Output: + * Returns the head of the merged list. + * + * Implementation notes: + * To make it fast (in particular, to reduce to an insertion sort whenever + * one of the two input lists only has a single element) we iterate through + * a list until its head becomes greater than the head of the other list, + * then we switch their roles. As soon as one of the two lists is empty, we + * just attach the other one to the current list and exit. + * Writes to memory are only needed to "switch" lists (as it also requires + * attaching to the output list the list which we will be iterating next) and + * to attach the last non-empty list. + */ +static struct edge * +merge_sorted_edges (struct edge *head_a, struct edge *head_b) +{ + struct edge *head, **next, *prev; + int32_t x; + + prev = head_a->prev; + next = &head; + if (head_a->cell <= head_b->cell) { + head = head_a; + } else { + head = head_b; + head_b->prev = prev; + goto start_with_b; + } + + do { + x = head_b->cell; + while (head_a != NULL && head_a->cell <= x) { + prev = head_a; + next = &head_a->next; + head_a = head_a->next; + } + + head_b->prev = prev; + *next = head_b; + if (head_a == NULL) + return head; + +start_with_b: + x = head_a->cell; + while (head_b != NULL && head_b->cell <= x) { + prev = head_b; + next = &head_b->next; + head_b = head_b->next; + } + + head_a->prev = prev; + *next = head_a; + if (head_b == NULL) + return head; + } while (1); +} + +/* + * Sort (part of) a list. + * Input: + * - list: The list to be sorted; list cannot be NULL. + * - limit: Recursion limit. + * Output: + * - head_out: The head of the sorted list containing the first 2^(level+1) elements of the + * input list; if the input list has fewer elements, head_out be a sorted list + * containing all the elements of the input list. + * Returns the head of the list of unprocessed elements (NULL if the sorted list contains + * all the elements of the input list). + * + * Implementation notes: + * Special case single element list, unroll/inline the sorting of the first two elements. + * Some tail recursion is used since we iterate on the bottom-up solution of the problem + * (we start with a small sorted list and keep merging other lists of the same size to it). + */ +static struct edge * +sort_edges (struct edge *list, + unsigned int level, + struct edge **head_out) +{ + struct edge *head_other, *remaining; + unsigned int i; + + head_other = list->next; + + if (head_other == NULL) { + *head_out = list; + return NULL; + } + + remaining = head_other->next; + if (list->cell <= head_other->cell) { + *head_out = list; + head_other->next = NULL; + } else { + *head_out = head_other; + head_other->prev = list->prev; + head_other->next = list; + list->prev = head_other; + list->next = NULL; + } + + for (i = 0; i < level && remaining; i++) { + remaining = sort_edges (remaining, i, &head_other); + *head_out = merge_sorted_edges (*head_out, head_other); + } + + return remaining; +} + + static struct edge * +merge_unsorted_edges (struct edge *head, struct edge *unsorted) +{ + sort_edges (unsorted, UINT_MAX, &unsorted); + return merge_sorted_edges (head, unsorted); +} + +/* Test if the edges on the active list can be safely advanced by a + * full row without intersections or any edges ending. */ +inline static int +can_do_full_row (struct active_list *active) +{ + const struct edge *e; + int prev_x = INT_MIN; + + /* Recomputes the minimum height of all edges on the active + * list if we have been dropping edges. */ + if (active->min_height <= 0) { + int min_height = INT_MAX; + int is_vertical = 1; + + e = active->head.next; + while (NULL != e) { + if (e->height_left < min_height) + min_height = e->height_left; + is_vertical &= e->dy == 0; + e = e->next; + } + + active->is_vertical = is_vertical; + active->min_height = min_height; + } + + if (active->min_height < GRID_Y) + return 0; + + /* Check for intersections as no edges end during the next row. */ + for (e = active->head.next; e != &active->tail; e = e->next) { + int cell; + + if (e->dy) { + struct quorem x = e->x; + x.quo += e->dxdy_full.quo; + x.rem += e->dxdy_full.rem; + if (x.rem < 0) { + x.quo--; + x.rem += e->dy; + } else if (x.rem >= e->dy) { + x.quo++; + x.rem -= e->dy; + } + cell = x.quo + (x.rem >= e->dy/2); + } else + cell = e->cell; + + if (cell < prev_x) + return 0; + + prev_x = cell; + } + + return 1; +} + +/* Merges edges on the given subpixel row from the polygon to the + * active_list. */ +inline static void +active_list_merge_edges_from_bucket(struct active_list *active, + struct edge *edges) +{ + active->head.next = merge_unsorted_edges (active->head.next, edges); +} + +inline static int +polygon_fill_buckets (struct active_list *active, + struct edge *edge, + int y, + struct edge **buckets) +{ + grid_scaled_y_t min_height = active->min_height; + int is_vertical = active->is_vertical; + int max_suby = 0; + + while (edge) { + struct edge *next = edge->next; + int suby = edge->ytop - y; + if (buckets[suby]) + buckets[suby]->prev = edge; + edge->next = buckets[suby]; + edge->prev = NULL; + buckets[suby] = edge; + if (edge->height_left < min_height) + min_height = edge->height_left; + is_vertical &= edge->dy == 0; + edge = next; + if (suby > max_suby) + max_suby = suby; + } + + active->is_vertical = is_vertical; + active->min_height = min_height; + + return max_suby; +} + +static void step (struct edge *edge) +{ + if (edge->dy == 0) + return; + + edge->x.quo += edge->dxdy.quo; + edge->x.rem += edge->dxdy.rem; + if (edge->x.rem < 0) { + --edge->x.quo; + edge->x.rem += edge->dy; + } else if (edge->x.rem >= edge->dy) { + ++edge->x.quo; + edge->x.rem -= edge->dy; + } + + edge->cell = edge->x.quo + (edge->x.rem >= edge->dy/2); +} + +inline static void +sub_row (struct active_list *active, + struct cell_list *coverages, + unsigned int mask) +{ + struct edge *edge = active->head.next; + int xstart = INT_MIN, prev_x = INT_MIN; + int winding = 0; + + cell_list_rewind (coverages); + + while (&active->tail != edge) { + struct edge *next = edge->next; + int xend = edge->cell; + + if (--edge->height_left) { + step (edge); + + if (edge->cell < prev_x) { + struct edge *pos = edge->prev; + pos->next = next; + next->prev = pos; + do { + pos = pos->prev; + } while (edge->cell < pos->cell); + pos->next->prev = edge; + edge->next = pos->next; + edge->prev = pos; + pos->next = edge; + } else + prev_x = edge->cell; + active->min_height = -1; + } else { + edge->prev->next = next; + next->prev = edge->prev; + } + + winding += edge->dir; + if ((winding & mask) == 0) { + if (next->cell != xend) { + cell_list_add_subspan (coverages, xstart, xend); + xstart = INT_MIN; + } + } else if (xstart == INT_MIN) + xstart = xend; + + edge = next; + } +} + +inline static void dec (struct active_list *a, struct edge *e, int h) +{ + e->height_left -= h; + if (e->height_left == 0) { + e->prev->next = e->next; + e->next->prev = e->prev; + a->min_height = -1; + } +} + +static void +full_row (struct active_list *active, + struct cell_list *coverages, + unsigned int mask) +{ + struct edge *left = active->head.next; + + while (&active->tail != left) { + struct edge *right; + int winding; + + dec (active, left, GRID_Y); + + winding = left->dir; + right = left->next; + do { + dec (active, right, GRID_Y); + + winding += right->dir; + if ((winding & mask) == 0 && right->next->cell != right->cell) + break; + + full_step (right); + + right = right->next; + } while (1); + + cell_list_set_rewind (coverages); + cell_list_render_edge (coverages, left, +1); + cell_list_render_edge (coverages, right, -1); + + left = right->next; + } +} + +static void +_glitter_scan_converter_init(glitter_scan_converter_t *converter, jmp_buf *jmp) +{ + polygon_init(converter->polygon, jmp); + active_list_init(converter->active); + cell_list_init(converter->coverages, jmp); + converter->xmin=0; + converter->ymin=0; + converter->xmax=0; + converter->ymax=0; +} + +static void +_glitter_scan_converter_fini(glitter_scan_converter_t *self) +{ + if (self->spans != self->spans_embedded) + free (self->spans); + + polygon_fini(self->polygon); + cell_list_fini(self->coverages); + + self->xmin=0; + self->ymin=0; + self->xmax=0; + self->ymax=0; +} + +static grid_scaled_t +int_to_grid_scaled(int i, int scale) +{ + /* Clamp to max/min representable scaled number. */ + if (i >= 0) { + if (i >= INT_MAX/scale) + i = INT_MAX/scale; + } + else { + if (i <= INT_MIN/scale) + i = INT_MIN/scale; + } + return i*scale; +} + +#define int_to_grid_scaled_x(x) int_to_grid_scaled((x), GRID_X) +#define int_to_grid_scaled_y(x) int_to_grid_scaled((x), GRID_Y) + +I glitter_status_t +glitter_scan_converter_reset( + glitter_scan_converter_t *converter, + int xmin, int ymin, + int xmax, int ymax) +{ + glitter_status_t status; + int max_num_spans; + + converter->xmin = 0; converter->xmax = 0; + converter->ymin = 0; converter->ymax = 0; + + max_num_spans = xmax - xmin + 1; + + if (max_num_spans > ARRAY_LENGTH(converter->spans_embedded)) { + converter->spans = _cairo_malloc_ab (max_num_spans, + sizeof (cairo_half_open_span_t)); + if (unlikely (converter->spans == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } else + converter->spans = converter->spans_embedded; + + xmin = int_to_grid_scaled_x(xmin); + ymin = int_to_grid_scaled_y(ymin); + xmax = int_to_grid_scaled_x(xmax); + ymax = int_to_grid_scaled_y(ymax); + + active_list_reset(converter->active); + cell_list_reset(converter->coverages); + status = polygon_reset(converter->polygon, ymin, ymax); + if (status) + return status; + + converter->xmin = xmin; + converter->xmax = xmax; + converter->ymin = ymin; + converter->ymax = ymax; + return GLITTER_STATUS_SUCCESS; +} + +/* INPUT_TO_GRID_X/Y (in_coord, out_grid_scaled, grid_scale) + * These macros convert an input coordinate in the client's + * device space to the rasterisation grid. + */ +/* Gah.. this bit of ugly defines INPUT_TO_GRID_X/Y so as to use + * shifts if possible, and something saneish if not. + */ +#if !defined(INPUT_TO_GRID_Y) && defined(GRID_Y_BITS) && GRID_Y_BITS <= GLITTER_INPUT_BITS +# define INPUT_TO_GRID_Y(in, out) (out) = (in) >> (GLITTER_INPUT_BITS - GRID_Y_BITS) +#else +# define INPUT_TO_GRID_Y(in, out) INPUT_TO_GRID_general(in, out, GRID_Y) +#endif + +#if !defined(INPUT_TO_GRID_X) && defined(GRID_X_BITS) && GRID_X_BITS <= GLITTER_INPUT_BITS +# define INPUT_TO_GRID_X(in, out) (out) = (in) >> (GLITTER_INPUT_BITS - GRID_X_BITS) +#else +# define INPUT_TO_GRID_X(in, out) INPUT_TO_GRID_general(in, out, GRID_X) +#endif + +#define INPUT_TO_GRID_general(in, out, grid_scale) do { \ + long long tmp__ = (long long)(grid_scale) * (in); \ + tmp__ += 1 << (GLITTER_INPUT_BITS-1); \ + tmp__ >>= GLITTER_INPUT_BITS; \ + (out) = tmp__; \ +} while (0) + +inline static void +polygon_add_edge (struct polygon *polygon, + const cairo_edge_t *edge) +{ + struct edge *e; + grid_scaled_y_t ytop, ybot; + const cairo_point_t *p1, *p2; + + INPUT_TO_GRID_Y (edge->top, ytop); + if (ytop < polygon->ymin) + ytop = polygon->ymin; + + INPUT_TO_GRID_Y (edge->bottom, ybot); + if (ybot > polygon->ymax) + ybot = polygon->ymax; + + if (ybot <= ytop) + return; + + e = pool_alloc (polygon->edge_pool.base, sizeof (struct edge)); + + e->ytop = ytop; + e->height_left = ybot - ytop; + if (edge->line.p2.y > edge->line.p1.y) { + e->dir = edge->dir; + p1 = &edge->line.p1; + p2 = &edge->line.p2; + } else { + e->dir = -edge->dir; + p1 = &edge->line.p2; + p2 = &edge->line.p1; + } + + if (p2->x == p1->x) { + e->cell = p1->x; + e->x.quo = p1->x; + e->x.rem = 0; + e->dxdy.quo = e->dxdy.rem = 0; + e->dxdy_full.quo = e->dxdy_full.rem = 0; + e->dy = 0; + } else { + int64_t Ex, Ey, tmp; + + Ex = (int64_t)(p2->x - p1->x) * GRID_X; + Ey = (int64_t)(p2->y - p1->y) * GRID_Y * (2 << GLITTER_INPUT_BITS); + + e->dxdy.quo = Ex * (2 << GLITTER_INPUT_BITS) / Ey; + e->dxdy.rem = Ex * (2 << GLITTER_INPUT_BITS) % Ey; + + tmp = (int64_t)(2*ytop + 1) << GLITTER_INPUT_BITS; + tmp -= (int64_t)p1->y * GRID_Y * 2; + tmp *= Ex; + e->x.quo = tmp / Ey; + e->x.rem = tmp % Ey; + +#if GRID_X_BITS == GLITTER_INPUT_BITS + e->x.quo += p1->x; +#else + tmp = (int64_t)p1->x * GRID_X; + e->x.quo += tmp >> GLITTER_INPUT_BITS; + e->x.rem += ((tmp & ((1 << GLITTER_INPUT_BITS) - 1)) * Ey) / (1 << GLITTER_INPUT_BITS); +#endif + + if (e->x.rem < 0) { + e->x.quo--; + e->x.rem += Ey; + } else if (e->x.rem >= Ey) { + e->x.quo++; + e->x.rem -= Ey; + } + + if (e->height_left >= GRID_Y) { + tmp = Ex * (2 * GRID_Y << GLITTER_INPUT_BITS); + e->dxdy_full.quo = tmp / Ey; + e->dxdy_full.rem = tmp % Ey; + } else + e->dxdy_full.quo = e->dxdy_full.rem = 0; + + e->cell = e->x.quo + (e->x.rem >= Ey/2); + e->dy = Ey; + } + + _polygon_insert_edge_into_its_y_bucket (polygon, e); +} + +/* Add a new polygon edge from pixel (x1,y1) to (x2,y2) to the scan + * converter. The coordinates represent pixel positions scaled by + * 2**GLITTER_PIXEL_BITS. If this function fails then the scan + * converter should be reset or destroyed. Dir must be +1 or -1, + * with the latter reversing the orientation of the edge. */ +I void +glitter_scan_converter_add_edge (glitter_scan_converter_t *converter, + const cairo_edge_t *edge) +{ + polygon_add_edge (converter->polygon, edge); +} + +static void +step_edges (struct active_list *active, int count) +{ + struct edge *edge; + + count *= GRID_Y; + for (edge = active->head.next; edge != &active->tail; edge = edge->next) { + edge->height_left -= count; + if (! edge->height_left) { + edge->prev->next = edge->next; + edge->next->prev = edge->prev; + active->min_height = -1; + } + } +} + +static glitter_status_t +blit_a8 (struct cell_list *cells, + cairo_span_renderer_t *renderer, + cairo_half_open_span_t *spans, + int y, int height, + int xmin, int xmax) +{ + struct cell *cell = cells->head.next; + int prev_x = xmin, last_x = -1; + int16_t cover = 0, last_cover = 0; + unsigned num_spans; + + if (cell == &cells->tail) + return CAIRO_STATUS_SUCCESS; + + /* Skip cells to the left of the clip region. */ + while (cell->x < xmin) { + cover += cell->covered_height; + cell = cell->next; + } + cover *= GRID_X*2; + + /* Form the spans from the coverages and areas. */ + num_spans = 0; + for (; cell->x < xmax; cell = cell->next) { + int x = cell->x; + int16_t area; + + if (x > prev_x && cover != last_cover) { + spans[num_spans].x = prev_x; + spans[num_spans].coverage = GRID_AREA_TO_ALPHA (cover); + last_cover = cover; + last_x = prev_x; + ++num_spans; + } + + cover += cell->covered_height*GRID_X*2; + area = cover - cell->uncovered_area; + + if (area != last_cover) { + spans[num_spans].x = x; + spans[num_spans].coverage = GRID_AREA_TO_ALPHA (area); + last_cover = area; + last_x = x; + ++num_spans; + } + + prev_x = x+1; + } + + if (prev_x <= xmax && cover != last_cover) { + spans[num_spans].x = prev_x; + spans[num_spans].coverage = GRID_AREA_TO_ALPHA (cover); + last_cover = cover; + last_x = prev_x; + ++num_spans; + } + + if (last_x < xmax && last_cover) { + spans[num_spans].x = xmax; + spans[num_spans].coverage = 0; + ++num_spans; + } + + /* Dump them into the renderer. */ + return renderer->render_rows (renderer, y, height, spans, num_spans); +} + +#define GRID_AREA_TO_A1(A) ((GRID_AREA_TO_ALPHA (A) > 127) ? 255 : 0) +static glitter_status_t +blit_a1 (struct cell_list *cells, + cairo_span_renderer_t *renderer, + cairo_half_open_span_t *spans, + int y, int height, + int xmin, int xmax) +{ + struct cell *cell = cells->head.next; + int prev_x = xmin, last_x = -1; + int16_t cover = 0; + uint8_t coverage, last_cover = 0; + unsigned num_spans; + + if (cell == &cells->tail) + return CAIRO_STATUS_SUCCESS; + + /* Skip cells to the left of the clip region. */ + while (cell->x < xmin) { + cover += cell->covered_height; + cell = cell->next; + } + cover *= GRID_X*2; + + /* Form the spans from the coverages and areas. */ + num_spans = 0; + for (; cell->x < xmax; cell = cell->next) { + int x = cell->x; + int16_t area; + + coverage = GRID_AREA_TO_A1 (cover); + if (x > prev_x && coverage != last_cover) { + last_x = spans[num_spans].x = prev_x; + last_cover = spans[num_spans].coverage = coverage; + ++num_spans; + } + + cover += cell->covered_height*GRID_X*2; + area = cover - cell->uncovered_area; + + coverage = GRID_AREA_TO_A1 (area); + if (coverage != last_cover) { + last_x = spans[num_spans].x = x; + last_cover = spans[num_spans].coverage = coverage; + ++num_spans; + } + + prev_x = x+1; + } + + coverage = GRID_AREA_TO_A1 (cover); + if (prev_x <= xmax && coverage != last_cover) { + last_x = spans[num_spans].x = prev_x; + last_cover = spans[num_spans].coverage = coverage; + ++num_spans; + } + + if (last_x < xmax && last_cover) { + spans[num_spans].x = xmax; + spans[num_spans].coverage = 0; + ++num_spans; + } + if (num_spans == 1) + return CAIRO_STATUS_SUCCESS; + + /* Dump them into the renderer. */ + return renderer->render_rows (renderer, y, height, spans, num_spans); +} + + +I void +glitter_scan_converter_render(glitter_scan_converter_t *converter, + unsigned int winding_mask, + int antialias, + cairo_span_renderer_t *renderer) +{ + int i, j; + int ymax_i = converter->ymax / GRID_Y; + int ymin_i = converter->ymin / GRID_Y; + int xmin_i, xmax_i; + int h = ymax_i - ymin_i; + struct polygon *polygon = converter->polygon; + struct cell_list *coverages = converter->coverages; + struct active_list *active = converter->active; + struct edge *buckets[GRID_Y] = { 0 }; + + xmin_i = converter->xmin / GRID_X; + xmax_i = converter->xmax / GRID_X; + if (xmin_i >= xmax_i) + return; + + /* Render each pixel row. */ + for (i = 0; i < h; i = j) { + int do_full_row = 0; + + j = i + 1; + + /* Determine if we can ignore this row or use the full pixel + * stepper. */ + if (polygon_fill_buckets (active, + polygon->y_buckets[i], + (i+ymin_i)*GRID_Y, + buckets) == 0) { + if (buckets[0]) { + active_list_merge_edges_from_bucket (active, buckets[0]); + buckets[0] = NULL; + } + + if (active->head.next == &active->tail) { + active->min_height = INT_MAX; + active->is_vertical = 1; + for (; j < h && ! polygon->y_buckets[j]; j++) + ; + continue; + } + + do_full_row = can_do_full_row (active); + } + + if (do_full_row) { + /* Step by a full pixel row's worth. */ + full_row (active, coverages, winding_mask); + + if (active->is_vertical) { + while (j < h && + polygon->y_buckets[j] == NULL && + active->min_height >= 2*GRID_Y) + { + active->min_height -= GRID_Y; + j++; + } + if (j != i + 1) + step_edges (active, j - (i + 1)); + } + } else { + int sub; + + /* Subsample this row. */ + for (sub = 0; sub < GRID_Y; sub++) { + if (buckets[sub]) { + active_list_merge_edges_from_bucket (active, buckets[sub]); + buckets[sub] = NULL; + } + sub_row (active, coverages, winding_mask); + } + } + + if (antialias) + blit_a8 (coverages, renderer, converter->spans, + i+ymin_i, j-i, xmin_i, xmax_i); + else + blit_a1 (coverages, renderer, converter->spans, + i+ymin_i, j-i, xmin_i, xmax_i); + cell_list_reset (coverages); + + active->min_height -= GRID_Y; + } +} + +struct _cairo_tor_scan_converter { + cairo_scan_converter_t base; + + glitter_scan_converter_t converter[1]; + cairo_fill_rule_t fill_rule; + cairo_antialias_t antialias; + + jmp_buf jmp; +}; + +typedef struct _cairo_tor_scan_converter cairo_tor_scan_converter_t; + +static void +_cairo_tor_scan_converter_destroy (void *converter) +{ + cairo_tor_scan_converter_t *self = converter; + if (self == NULL) { + return; + } + _glitter_scan_converter_fini (self->converter); + free(self); +} + +cairo_status_t +_cairo_tor_scan_converter_add_polygon (void *converter, + const cairo_polygon_t *polygon) +{ + cairo_tor_scan_converter_t *self = converter; + int i; + +#if 0 + FILE *file = fopen ("polygon.txt", "w"); + _cairo_debug_print_polygon (file, polygon); + fclose (file); +#endif + + for (i = 0; i < polygon->num_edges; i++) + glitter_scan_converter_add_edge (self->converter, &polygon->edges[i]); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_tor_scan_converter_generate (void *converter, + cairo_span_renderer_t *renderer) +{ + cairo_tor_scan_converter_t *self = converter; + cairo_status_t status; + + if ((status = setjmp (self->jmp))) + return _cairo_scan_converter_set_error (self, _cairo_error (status)); + + glitter_scan_converter_render (self->converter, + self->fill_rule == CAIRO_FILL_RULE_WINDING ? ~0 : 1, + self->antialias != CAIRO_ANTIALIAS_NONE, + renderer); + return CAIRO_STATUS_SUCCESS; +} + +cairo_scan_converter_t * +_cairo_tor_scan_converter_create (int xmin, + int ymin, + int xmax, + int ymax, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias) +{ + cairo_tor_scan_converter_t *self; + cairo_status_t status; + + self = _cairo_calloc (sizeof(struct _cairo_tor_scan_converter)); + if (unlikely (self == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto bail_nomem; + } + + self->base.destroy = _cairo_tor_scan_converter_destroy; + self->base.generate = _cairo_tor_scan_converter_generate; + + _glitter_scan_converter_init (self->converter, &self->jmp); + status = glitter_scan_converter_reset (self->converter, + xmin, ymin, xmax, ymax); + if (unlikely (status)) + goto bail; + + self->fill_rule = fill_rule; + self->antialias = antialias; + + return &self->base; + + bail: + self->base.destroy(&self->base); + bail_nomem: + return _cairo_scan_converter_create_in_error (status); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-tor22-scan-converter.c b/local/recipes/libs/cairo/source/src/cairo-tor22-scan-converter.c new file mode 100644 index 0000000000..bbdc02f3a1 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-tor22-scan-converter.c @@ -0,0 +1,1702 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* glitter-paths - polygon scan converter + * + * Copyright (c) 2008 M Joonas Pihlaja + * Copyright (c) 2007 David Turner + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +/* This is the Glitter paths scan converter incorporated into cairo. + * The source is from commit 734c53237a867a773640bd5b64816249fa1730f8 + * of + * + * https://gitweb.freedesktop.org/?p=users/joonas/glitter-paths + */ +/* Glitter-paths is a stand alone polygon rasteriser derived from + * David Turner's reimplementation of Tor Anderssons's 15x17 + * supersampling rasteriser from the Apparition graphics library. The + * main new feature here is cheaply choosing per-scan line between + * doing fully analytical coverage computation for an entire row at a + * time vs. using a supersampling approach. + * + * David Turner's code can be found at + * + * http://david.freetype.org/rasterizer-shootout/raster-comparison-20070813.tar.bz2 + * + * In particular this file incorporates large parts of ftgrays_tor10.h + * from raster-comparison-20070813.tar.bz2 + */ +/* Overview + * + * A scan converter's basic purpose to take polygon edges and convert + * them into an RLE compressed A8 mask. This one works in two phases: + * gathering edges and generating spans. + * + * 1) As the user feeds the scan converter edges they are vertically + * clipped and bucketted into a _polygon_ data structure. The edges + * are also snapped from the user's coordinates to the subpixel grid + * coordinates used during scan conversion. + * + * user + * | + * | edges + * V + * polygon buckets + * + * 2) Generating spans works by performing a vertical sweep of pixel + * rows from top to bottom and maintaining an _active_list_ of edges + * that intersect the row. From the active list the fill rule + * determines which edges are the left and right edges of the start of + * each span, and their contribution is then accumulated into a pixel + * coverage list (_cell_list_) as coverage deltas. Once the coverage + * deltas of all edges are known we can form spans of constant pixel + * coverage by summing the deltas during a traversal of the cell list. + * At the end of a pixel row the cell list is sent to a coverage + * blitter for rendering to some target surface. + * + * The pixel coverages are computed by either supersampling the row + * and box filtering a mono rasterisation, or by computing the exact + * coverages of edges in the active list. The supersampling method is + * used whenever some edge starts or stops within the row or there are + * edge intersections in the row. + * + * polygon bucket for \ + * current pixel row | + * | | + * | activate new edges | Repeat GRID_Y times if we + * V \ are supersampling this row, + * active list / or just once if we're computing + * | | analytical coverage. + * | coverage deltas | + * V | + * pixel coverage list / + * | + * V + * coverage blitter + */ +#include "cairoint.h" +#include "cairo-spans-private.h" +#include "cairo-error-private.h" + +#include +#include +#include +#include + +/*------------------------------------------------------------------------- + * cairo specific config + */ +#define I static + +/* Prefer cairo's status type. */ +#define GLITTER_HAVE_STATUS_T 1 +#define GLITTER_STATUS_SUCCESS CAIRO_STATUS_SUCCESS +#define GLITTER_STATUS_NO_MEMORY CAIRO_STATUS_NO_MEMORY +typedef cairo_status_t glitter_status_t; + +/* The input coordinate scale and the rasterisation grid scales. */ +#define GLITTER_INPUT_BITS CAIRO_FIXED_FRAC_BITS +//#define GRID_X_BITS CAIRO_FIXED_FRAC_BITS +//#define GRID_Y 15 +#define GRID_X_BITS 2 +#define GRID_Y_BITS 2 + +/* Set glitter up to use a cairo span renderer to do the coverage + * blitting. */ +struct pool; +struct cell_list; + +/*------------------------------------------------------------------------- + * glitter-paths.h + */ + +/* "Input scaled" numbers are fixed precision reals with multiplier + * 2**GLITTER_INPUT_BITS. Input coordinates are given to glitter as + * pixel scaled numbers. These get converted to the internal grid + * scaled numbers as soon as possible. Internal overflow is possible + * if GRID_X/Y inside glitter-paths.c is larger than + * 1< +#include +#include + +/* All polygon coordinates are snapped onto a subsample grid. "Grid + * scaled" numbers are fixed precision reals with multiplier GRID_X or + * GRID_Y. */ +typedef int grid_scaled_t; +typedef int grid_scaled_x_t; +typedef int grid_scaled_y_t; + +/* Default x/y scale factors. + * You can either define GRID_X/Y_BITS to get a power-of-two scale + * or define GRID_X/Y separately. */ +#if !defined(GRID_X) && !defined(GRID_X_BITS) +# define GRID_X_BITS 8 +#endif +#if !defined(GRID_Y) && !defined(GRID_Y_BITS) +# define GRID_Y 15 +#endif + +/* Use GRID_X/Y_BITS to define GRID_X/Y if they're available. */ +#ifdef GRID_X_BITS +# define GRID_X (1 << GRID_X_BITS) +#endif +#ifdef GRID_Y_BITS +# define GRID_Y (1 << GRID_Y_BITS) +#endif + +/* The GRID_X_TO_INT_FRAC macro splits a grid scaled coordinate into + * integer and fractional parts. The integer part is floored. */ +#if defined(GRID_X_TO_INT_FRAC) + /* do nothing */ +#elif defined(GRID_X_BITS) +# define GRID_X_TO_INT_FRAC(x, i, f) \ + _GRID_TO_INT_FRAC_shift(x, i, f, GRID_X_BITS) +#else +# define GRID_X_TO_INT_FRAC(x, i, f) \ + _GRID_TO_INT_FRAC_general(x, i, f, GRID_X) +#endif + +#define _GRID_TO_INT_FRAC_general(t, i, f, m) do { \ + (i) = (t) / (m); \ + (f) = (t) % (m); \ + if ((f) < 0) { \ + --(i); \ + (f) += (m); \ + } \ +} while (0) + +#define _GRID_TO_INT_FRAC_shift(t, i, f, b) do { \ + (f) = (t) & ((1 << (b)) - 1); \ + (i) = (t) >> (b); \ +} while (0) + +/* A grid area is a real in [0,1] scaled by 2*GRID_X*GRID_Y. We want + * to be able to represent exactly areas of subpixel trapezoids whose + * vertices are given in grid scaled coordinates. The scale factor + * comes from needing to accurately represent the area 0.5*dx*dy of a + * triangle with base dx and height dy in grid scaled numbers. */ +#define GRID_XY (2*GRID_X*GRID_Y) /* Unit area on the grid. */ + +/* GRID_AREA_TO_ALPHA(area): map [0,GRID_XY] to [0,255]. */ +#if GRID_XY == 510 +# define GRID_AREA_TO_ALPHA(c) (((c)+1) >> 1) +#elif GRID_XY == 255 +# define GRID_AREA_TO_ALPHA(c) (c) +#elif GRID_XY == 64 +# define GRID_AREA_TO_ALPHA(c) (((c) << 2) | -(((c) & 0x40) >> 6)) +#elif GRID_XY == 32 +# define GRID_AREA_TO_ALPHA(c) (((c) << 3) | -(((c) & 0x20) >> 5)) +#elif GRID_XY == 128 +# define GRID_AREA_TO_ALPHA(c) ((((c) << 1) | -((c) >> 7)) & 255) +#elif GRID_XY == 256 +# define GRID_AREA_TO_ALPHA(c) (((c) | -((c) >> 8)) & 255) +#elif GRID_XY == 15 +# define GRID_AREA_TO_ALPHA(c) (((c) << 4) + (c)) +#elif GRID_XY == 2*256*15 +# define GRID_AREA_TO_ALPHA(c) (((c) + ((c)<<4) + 256) >> 9) +#else +# define GRID_AREA_TO_ALPHA(c) (((c)*255 + GRID_XY/2) / GRID_XY) +#endif + +#define UNROLL3(x) x x x + +struct quorem { + int32_t quo; + int32_t rem; +}; + +/* Header for a chunk of memory in a memory pool. */ +struct _pool_chunk { + /* # bytes used in this chunk. */ + size_t size; + + /* # bytes total in this chunk */ + size_t capacity; + + /* Pointer to the previous chunk or %NULL if this is the sentinel + * chunk in the pool header. */ + struct _pool_chunk *prev_chunk; + + /* Actual data starts here. Well aligned for pointers. */ +}; + +/* A memory pool. This is supposed to be embedded on the stack or + * within some other structure. It may optionally be followed by an + * embedded array from which requests are fulfilled until + * malloc needs to be called to allocate a first real chunk. */ +struct pool { + /* Chunk we're allocating from. */ + struct _pool_chunk *current; + + jmp_buf *jmp; + + /* Free list of previously allocated chunks. All have >= default + * capacity. */ + struct _pool_chunk *first_free; + + /* The default capacity of a chunk. */ + size_t default_capacity; + + /* Header for the sentinel chunk. Directly following the pool + * struct should be some space for embedded elements from which + * the sentinel chunk allocates from. */ + struct _pool_chunk sentinel[1]; +}; + +/* A polygon edge. */ +struct edge { + /* Next in y-bucket or active list. */ + struct edge *next, *prev; + + /* Number of subsample rows remaining to scan convert of this + * edge. */ + grid_scaled_y_t height_left; + + /* Original sign of the edge: +1 for downwards, -1 for upwards + * edges. */ + int dir; + int vertical; + + /* Current x coordinate while the edge is on the active + * list. Initialised to the x coordinate of the top of the + * edge. The quotient is in grid_scaled_x_t units and the + * remainder is mod dy in grid_scaled_y_t units.*/ + struct quorem x; + + /* Advance of the current x when moving down a subsample line. */ + struct quorem dxdy; + + /* The clipped y of the top of the edge. */ + grid_scaled_y_t ytop; + + /* y2-y1 after orienting the edge downwards. */ + grid_scaled_y_t dy; +}; + +#define EDGE_Y_BUCKET_INDEX(y, ymin) (((y) - (ymin))/GRID_Y) + +/* A collection of sorted and vertically clipped edges of the polygon. + * Edges are moved from the polygon to an active list while scan + * converting. */ +struct polygon { + /* The vertical clip extents. */ + grid_scaled_y_t ymin, ymax; + + /* Array of edges all starting in the same bucket. An edge is put + * into bucket EDGE_BUCKET_INDEX(edge->ytop, polygon->ymin) when + * it is added to the polygon. */ + struct edge **y_buckets; + struct edge *y_buckets_embedded[64]; + + struct { + struct pool base[1]; + struct edge embedded[32]; + } edge_pool; +}; + +/* A cell records the effect on pixel coverage of polygon edges + * passing through a pixel. It contains two accumulators of pixel + * coverage. + * + * Consider the effects of a polygon edge on the coverage of a pixel + * it intersects and that of the following one. The coverage of the + * following pixel is the height of the edge multiplied by the width + * of the pixel, and the coverage of the pixel itself is the area of + * the trapezoid formed by the edge and the right side of the pixel. + * + * +-----------------------+-----------------------+ + * | | | + * | | | + * |_______________________|_______________________| + * | \...................|.......................|\ + * | \..................|.......................| | + * | \.................|.......................| | + * | \....covered.....|.......................| | + * | \....area.......|.......................| } covered height + * | \..............|.......................| | + * |uncovered\.............|.......................| | + * | area \............|.......................| | + * |___________\...........|.......................|/ + * | | | + * | | | + * | | | + * +-----------------------+-----------------------+ + * + * Since the coverage of the following pixel will always be a multiple + * of the width of the pixel, we can store the height of the covered + * area instead. The coverage of the pixel itself is the total + * coverage minus the area of the uncovered area to the left of the + * edge. As it's faster to compute the uncovered area we only store + * that and subtract it from the total coverage later when forming + * spans to blit. + * + * The heights and areas are signed, with left edges of the polygon + * having positive sign and right edges having negative sign. When + * two edges intersect they swap their left/rightness so their + * contribution above and below the intersection point must be + * computed separately. */ +struct cell { + struct cell *next; + int x; + int16_t uncovered_area; + int16_t covered_height; +}; + +/* A cell list represents the scan line sparsely as cells ordered by + * ascending x. It is geared towards scanning the cells in order + * using an internal cursor. */ +struct cell_list { + /* Sentinel nodes */ + struct cell head, tail; + + /* Cursor state for iterating through the cell list. */ + struct cell *cursor, *rewind; + + /* Cells in the cell list are owned by the cell list and are + * allocated from this pool. */ + struct { + struct pool base[1]; + struct cell embedded[32]; + } cell_pool; +}; + +struct cell_pair { + struct cell *cell1; + struct cell *cell2; +}; + +/* The active list contains edges in the current scan line ordered by + * the x-coordinate of the intercept of the edge and the scan line. */ +struct active_list { + /* Leftmost edge on the current scan line. */ + struct edge head, tail; + + /* A lower bound on the height of the active edges is used to + * estimate how soon some active edge ends. We can't advance the + * scan conversion by a full pixel row if an edge ends somewhere + * within it. */ + grid_scaled_y_t min_height; + int is_vertical; +}; + +struct glitter_scan_converter { + struct polygon polygon[1]; + struct active_list active[1]; + struct cell_list coverages[1]; + + cairo_half_open_span_t *spans; + cairo_half_open_span_t spans_embedded[64]; + + /* Clip box. */ + grid_scaled_x_t xmin, xmax; + grid_scaled_y_t ymin, ymax; +}; + +/* Compute the floored division a/b. Assumes / and % perform symmetric + * division. */ +inline static struct quorem +floored_divrem(int a, int b) +{ + struct quorem qr; + qr.quo = a/b; + qr.rem = a%b; + if ((a^b)<0 && qr.rem) { + qr.quo -= 1; + qr.rem += b; + } + return qr; +} + +/* Compute the floored division (x*a)/b. Assumes / and % perform symmetric + * division. */ +static struct quorem +floored_muldivrem(int x, int a, int b) +{ + struct quorem qr; + long long xa = (long long)x*a; + qr.quo = xa/b; + qr.rem = xa%b; + if ((xa>=0) != (b>=0) && qr.rem) { + qr.quo -= 1; + qr.rem += b; + } + return qr; +} + +static struct _pool_chunk * +_pool_chunk_init( + struct _pool_chunk *p, + struct _pool_chunk *prev_chunk, + size_t capacity) +{ + p->prev_chunk = prev_chunk; + p->size = 0; + p->capacity = capacity; + return p; +} + +static struct _pool_chunk * +_pool_chunk_create(struct pool *pool, size_t size) +{ + struct _pool_chunk *p; + + p = _cairo_malloc (size + sizeof(struct _pool_chunk)); + if (unlikely (NULL == p)) + longjmp (*pool->jmp, _cairo_error (CAIRO_STATUS_NO_MEMORY)); + + return _pool_chunk_init(p, pool->current, size); +} + +static void +pool_init(struct pool *pool, + jmp_buf *jmp, + size_t default_capacity, + size_t embedded_capacity) +{ + pool->jmp = jmp; + pool->current = pool->sentinel; + pool->first_free = NULL; + pool->default_capacity = default_capacity; + _pool_chunk_init(pool->sentinel, NULL, embedded_capacity); +} + +static void +pool_fini(struct pool *pool) +{ + struct _pool_chunk *p = pool->current; + do { + while (NULL != p) { + struct _pool_chunk *prev = p->prev_chunk; + if (p != pool->sentinel) + free(p); + p = prev; + } + p = pool->first_free; + pool->first_free = NULL; + } while (NULL != p); +} + +/* Satisfy an allocation by first allocating a new large enough chunk + * and adding it to the head of the pool's chunk list. This function + * is called as a fallback if pool_alloc() couldn't do a quick + * allocation from the current chunk in the pool. */ +static void * +_pool_alloc_from_new_chunk( + struct pool *pool, + size_t size) +{ + struct _pool_chunk *chunk; + void *obj; + size_t capacity; + + /* If the allocation is smaller than the default chunk size then + * try getting a chunk off the free list. Force alloc of a new + * chunk for large requests. */ + capacity = size; + chunk = NULL; + if (size < pool->default_capacity) { + capacity = pool->default_capacity; + chunk = pool->first_free; + if (chunk) { + pool->first_free = chunk->prev_chunk; + _pool_chunk_init(chunk, pool->current, chunk->capacity); + } + } + + if (NULL == chunk) + chunk = _pool_chunk_create (pool, capacity); + pool->current = chunk; + + obj = ((unsigned char*)chunk + sizeof(*chunk) + chunk->size); + chunk->size += size; + return obj; +} + +/* Allocate size bytes from the pool. The first allocated address + * returned from a pool is aligned to sizeof(void*). Subsequent + * addresses will maintain alignment as long as multiples of void* are + * allocated. Returns the address of a new memory area or %NULL on + * allocation failures. The pool retains ownership of the returned + * memory. */ +inline static void * +pool_alloc (struct pool *pool, size_t size) +{ + struct _pool_chunk *chunk = pool->current; + + if (size <= chunk->capacity - chunk->size) { + void *obj = ((unsigned char*)chunk + sizeof(*chunk) + chunk->size); + chunk->size += size; + return obj; + } else { + return _pool_alloc_from_new_chunk(pool, size); + } +} + +/* Relinquish all pool_alloced memory back to the pool. */ +static void +pool_reset (struct pool *pool) +{ + /* Transfer all used chunks to the chunk free list. */ + struct _pool_chunk *chunk = pool->current; + if (chunk != pool->sentinel) { + while (chunk->prev_chunk != pool->sentinel) { + chunk = chunk->prev_chunk; + } + chunk->prev_chunk = pool->first_free; + pool->first_free = pool->current; + } + /* Reset the sentinel as the current chunk. */ + pool->current = pool->sentinel; + pool->sentinel->size = 0; +} + +/* Rewinds the cell list's cursor to the beginning. After rewinding + * we're good to cell_list_find() the cell any x coordinate. */ +inline static void +cell_list_rewind (struct cell_list *cells) +{ + cells->cursor = &cells->head; +} + +inline static void +cell_list_set_rewind (struct cell_list *cells) +{ + cells->rewind = cells->cursor; +} + +static void +cell_list_init(struct cell_list *cells, jmp_buf *jmp) +{ + pool_init(cells->cell_pool.base, jmp, + 256*sizeof(struct cell), + sizeof(cells->cell_pool.embedded)); + cells->tail.next = NULL; + cells->tail.x = INT_MAX; + cells->head.x = INT_MIN; + cells->head.next = &cells->tail; + cell_list_rewind (cells); +} + +static void +cell_list_fini(struct cell_list *cells) +{ + pool_fini (cells->cell_pool.base); +} + +/* Empty the cell list. This is called at the start of every pixel + * row. */ +inline static void +cell_list_reset (struct cell_list *cells) +{ + cell_list_rewind (cells); + cells->head.next = &cells->tail; + pool_reset (cells->cell_pool.base); +} + +inline static struct cell * +cell_list_alloc (struct cell_list *cells, + struct cell *tail, + int x) +{ + struct cell *cell; + + cell = pool_alloc (cells->cell_pool.base, sizeof (struct cell)); + cell->next = tail->next; + tail->next = cell; + cell->x = x; + *(uint32_t *)&cell->uncovered_area = 0; + + return cell; +} + +/* Find a cell at the given x-coordinate. Returns %NULL if a new cell + * needed to be allocated but couldn't be. Cells must be found with + * non-decreasing x-coordinate until the cell list is rewound using + * cell_list_rewind(). Ownership of the returned cell is retained by + * the cell list. */ +inline static struct cell * +cell_list_find (struct cell_list *cells, int x) +{ + struct cell *tail = cells->cursor; + + if (tail->x == x) + return tail; + + while (1) { + UNROLL3({ + if (tail->next->x > x) + break; + tail = tail->next; + }); + } + + if (tail->x != x) + tail = cell_list_alloc (cells, tail, x); + return cells->cursor = tail; + +} + +/* Find two cells at x1 and x2. This is exactly equivalent + * to + * + * pair.cell1 = cell_list_find(cells, x1); + * pair.cell2 = cell_list_find(cells, x2); + * + * except with less function call overhead. */ +inline static struct cell_pair +cell_list_find_pair(struct cell_list *cells, int x1, int x2) +{ + struct cell_pair pair; + + pair.cell1 = cells->cursor; + while (1) { + UNROLL3({ + if (pair.cell1->next->x > x1) + break; + pair.cell1 = pair.cell1->next; + }); + } + if (pair.cell1->x != x1) + pair.cell1 = cell_list_alloc (cells, pair.cell1, x1); + + pair.cell2 = pair.cell1; + while (1) { + UNROLL3({ + if (pair.cell2->next->x > x2) + break; + pair.cell2 = pair.cell2->next; + }); + } + if (pair.cell2->x != x2) + pair.cell2 = cell_list_alloc (cells, pair.cell2, x2); + + cells->cursor = pair.cell2; + return pair; +} + +/* Add a subpixel span covering [x1, x2) to the coverage cells. */ +inline static void +cell_list_add_subspan(struct cell_list *cells, + grid_scaled_x_t x1, + grid_scaled_x_t x2) +{ + int ix1, fx1; + int ix2, fx2; + + if (x1 == x2) + return; + + GRID_X_TO_INT_FRAC(x1, ix1, fx1); + GRID_X_TO_INT_FRAC(x2, ix2, fx2); + + if (ix1 != ix2) { + struct cell_pair p; + p = cell_list_find_pair(cells, ix1, ix2); + p.cell1->uncovered_area += 2*fx1; + ++p.cell1->covered_height; + p.cell2->uncovered_area -= 2*fx2; + --p.cell2->covered_height; + } else { + struct cell *cell = cell_list_find(cells, ix1); + cell->uncovered_area += 2*(fx1-fx2); + } +} + +/* Adds the analytical coverage of an edge crossing the current pixel + * row to the coverage cells and advances the edge's x position to the + * following row. + * + * This function is only called when we know that during this pixel row: + * + * 1) The relative order of all edges on the active list doesn't + * change. In particular, no edges intersect within this row to pixel + * precision. + * + * 2) No new edges start in this row. + * + * 3) No existing edges end mid-row. + * + * This function depends on being called with all edges from the + * active list in the order they appear on the list (i.e. with + * non-decreasing x-coordinate.) */ +static void +cell_list_render_edge(struct cell_list *cells, + struct edge *edge, + int sign) +{ + grid_scaled_x_t fx; + struct cell *cell; + int ix; + + GRID_X_TO_INT_FRAC(edge->x.quo, ix, fx); + + /* We always know that ix1 is >= the cell list cursor in this + * case due to the no-intersections precondition. */ + cell = cell_list_find(cells, ix); + cell->covered_height += sign*GRID_Y; + cell->uncovered_area += sign*2*fx*GRID_Y; +} + +static void +polygon_init (struct polygon *polygon, jmp_buf *jmp) +{ + polygon->ymin = polygon->ymax = 0; + polygon->y_buckets = polygon->y_buckets_embedded; + pool_init (polygon->edge_pool.base, jmp, + 8192 - sizeof (struct _pool_chunk), + sizeof (polygon->edge_pool.embedded)); +} + +static void +polygon_fini (struct polygon *polygon) +{ + if (polygon->y_buckets != polygon->y_buckets_embedded) + free (polygon->y_buckets); + + pool_fini (polygon->edge_pool.base); +} + +/* Empties the polygon of all edges. The polygon is then prepared to + * receive new edges and clip them to the vertical range + * [ymin,ymax). */ +static glitter_status_t +polygon_reset (struct polygon *polygon, + grid_scaled_y_t ymin, + grid_scaled_y_t ymax) +{ + unsigned h = ymax - ymin; + unsigned num_buckets = EDGE_Y_BUCKET_INDEX(ymax + GRID_Y-1, ymin); + + pool_reset(polygon->edge_pool.base); + + if (unlikely (h > 0x7FFFFFFFU - GRID_Y)) + goto bail_no_mem; /* even if you could, you wouldn't want to. */ + + if (polygon->y_buckets != polygon->y_buckets_embedded) + free (polygon->y_buckets); + + polygon->y_buckets = polygon->y_buckets_embedded; + if (num_buckets > ARRAY_LENGTH (polygon->y_buckets_embedded)) { + polygon->y_buckets = _cairo_malloc_ab (num_buckets, + sizeof (struct edge *)); + if (unlikely (NULL == polygon->y_buckets)) + goto bail_no_mem; + } + memset (polygon->y_buckets, 0, num_buckets * sizeof (struct edge *)); + + polygon->ymin = ymin; + polygon->ymax = ymax; + return GLITTER_STATUS_SUCCESS; + +bail_no_mem: + polygon->ymin = 0; + polygon->ymax = 0; + return GLITTER_STATUS_NO_MEMORY; +} + +static void +_polygon_insert_edge_into_its_y_bucket(struct polygon *polygon, + struct edge *e) +{ + unsigned ix = EDGE_Y_BUCKET_INDEX(e->ytop, polygon->ymin); + struct edge **ptail = &polygon->y_buckets[ix]; + e->next = *ptail; + *ptail = e; +} + +inline static void +polygon_add_edge (struct polygon *polygon, + const cairo_edge_t *edge) +{ + struct edge *e; + grid_scaled_x_t dx; + grid_scaled_y_t dy; + grid_scaled_y_t ytop, ybot; + grid_scaled_y_t ymin = polygon->ymin; + grid_scaled_y_t ymax = polygon->ymax; + + if (unlikely (edge->top >= ymax || edge->bottom <= ymin)) + return; + + e = pool_alloc (polygon->edge_pool.base, sizeof (struct edge)); + + dx = edge->line.p2.x - edge->line.p1.x; + dy = edge->line.p2.y - edge->line.p1.y; + e->dy = dy; + e->dir = edge->dir; + + ytop = edge->top >= ymin ? edge->top : ymin; + ybot = edge->bottom <= ymax ? edge->bottom : ymax; + e->ytop = ytop; + e->height_left = ybot - ytop; + + if (dx == 0) { + e->vertical = TRUE; + e->x.quo = edge->line.p1.x; + e->x.rem = 0; + e->dxdy.quo = 0; + e->dxdy.rem = 0; + } else { + e->vertical = FALSE; + e->dxdy = floored_divrem (dx, dy); + if (ytop == edge->line.p1.y) { + e->x.quo = edge->line.p1.x; + e->x.rem = 0; + } else { + e->x = floored_muldivrem (ytop - edge->line.p1.y, dx, dy); + e->x.quo += edge->line.p1.x; + } + } + + _polygon_insert_edge_into_its_y_bucket (polygon, e); + + e->x.rem -= dy; /* Bias the remainder for faster + * edge advancement. */ +} + +static void +active_list_reset (struct active_list *active) +{ + active->head.vertical = 1; + active->head.height_left = INT_MAX; + active->head.x.quo = INT_MIN; + active->head.prev = NULL; + active->head.next = &active->tail; + active->tail.prev = &active->head; + active->tail.next = NULL; + active->tail.x.quo = INT_MAX; + active->tail.height_left = INT_MAX; + active->tail.vertical = 1; + active->min_height = 0; + active->is_vertical = 1; +} + +static void +active_list_init(struct active_list *active) +{ + active_list_reset(active); +} + +/* + * Merge two sorted edge lists. + * Input: + * - head_a: The head of the first list. + * - head_b: The head of the second list; head_b cannot be NULL. + * Output: + * Returns the head of the merged list. + * + * Implementation notes: + * To make it fast (in particular, to reduce to an insertion sort whenever + * one of the two input lists only has a single element) we iterate through + * a list until its head becomes greater than the head of the other list, + * then we switch their roles. As soon as one of the two lists is empty, we + * just attach the other one to the current list and exit. + * Writes to memory are only needed to "switch" lists (as it also requires + * attaching to the output list the list which we will be iterating next) and + * to attach the last non-empty list. + */ +static struct edge * +merge_sorted_edges (struct edge *head_a, struct edge *head_b) +{ + struct edge *head, **next, *prev; + int32_t x; + + prev = head_a->prev; + next = &head; + if (head_a->x.quo <= head_b->x.quo) { + head = head_a; + } else { + head = head_b; + head_b->prev = prev; + goto start_with_b; + } + + do { + x = head_b->x.quo; + while (head_a != NULL && head_a->x.quo <= x) { + prev = head_a; + next = &head_a->next; + head_a = head_a->next; + } + + head_b->prev = prev; + *next = head_b; + if (head_a == NULL) + return head; + +start_with_b: + x = head_a->x.quo; + while (head_b != NULL && head_b->x.quo <= x) { + prev = head_b; + next = &head_b->next; + head_b = head_b->next; + } + + head_a->prev = prev; + *next = head_a; + if (head_b == NULL) + return head; + } while (1); +} + +/* + * Sort (part of) a list. + * Input: + * - list: The list to be sorted; list cannot be NULL. + * - limit: Recursion limit. + * Output: + * - head_out: The head of the sorted list containing the first 2^(level+1) elements of the + * input list; if the input list has fewer elements, head_out be a sorted list + * containing all the elements of the input list. + * Returns the head of the list of unprocessed elements (NULL if the sorted list contains + * all the elements of the input list). + * + * Implementation notes: + * Special case single element list, unroll/inline the sorting of the first two elements. + * Some tail recursion is used since we iterate on the bottom-up solution of the problem + * (we start with a small sorted list and keep merging other lists of the same size to it). + */ +static struct edge * +sort_edges (struct edge *list, + unsigned int level, + struct edge **head_out) +{ + struct edge *head_other, *remaining; + unsigned int i; + + head_other = list->next; + + if (head_other == NULL) { + *head_out = list; + return NULL; + } + + remaining = head_other->next; + if (list->x.quo <= head_other->x.quo) { + *head_out = list; + head_other->next = NULL; + } else { + *head_out = head_other; + head_other->prev = list->prev; + head_other->next = list; + list->prev = head_other; + list->next = NULL; + } + + for (i = 0; i < level && remaining; i++) { + remaining = sort_edges (remaining, i, &head_other); + *head_out = merge_sorted_edges (*head_out, head_other); + } + + return remaining; +} + +static struct edge * +merge_unsorted_edges (struct edge *head, struct edge *unsorted) +{ + sort_edges (unsorted, UINT_MAX, &unsorted); + return merge_sorted_edges (head, unsorted); +} + +/* Test if the edges on the active list can be safely advanced by a + * full row without intersections or any edges ending. */ +inline static int +can_do_full_row (struct active_list *active) +{ + const struct edge *e; + + /* Recomputes the minimum height of all edges on the active + * list if we have been dropping edges. */ + if (active->min_height <= 0) { + int min_height = INT_MAX; + int is_vertical = 1; + + e = active->head.next; + while (NULL != e) { + if (e->height_left < min_height) + min_height = e->height_left; + is_vertical &= e->vertical; + e = e->next; + } + + active->is_vertical = is_vertical; + active->min_height = min_height; + } + + if (active->min_height < GRID_Y) + return 0; + + return active->is_vertical; +} + +/* Merges edges on the given subpixel row from the polygon to the + * active_list. */ +inline static void +active_list_merge_edges_from_bucket(struct active_list *active, + struct edge *edges) +{ + active->head.next = merge_unsorted_edges (active->head.next, edges); +} + +inline static void +polygon_fill_buckets (struct active_list *active, + struct edge *edge, + int y, + struct edge **buckets) +{ + grid_scaled_y_t min_height = active->min_height; + int is_vertical = active->is_vertical; + + while (edge) { + struct edge *next = edge->next; + int suby = edge->ytop - y; + if (buckets[suby]) + buckets[suby]->prev = edge; + edge->next = buckets[suby]; + edge->prev = NULL; + buckets[suby] = edge; + if (edge->height_left < min_height) + min_height = edge->height_left; + is_vertical &= edge->vertical; + edge = next; + } + + active->is_vertical = is_vertical; + active->min_height = min_height; +} + +inline static void +sub_row (struct active_list *active, + struct cell_list *coverages, + unsigned int mask) +{ + struct edge *edge = active->head.next; + int xstart = INT_MIN, prev_x = INT_MIN; + int winding = 0; + + cell_list_rewind (coverages); + + while (&active->tail != edge) { + struct edge *next = edge->next; + int xend = edge->x.quo; + + if (--edge->height_left) { + edge->x.quo += edge->dxdy.quo; + edge->x.rem += edge->dxdy.rem; + if (edge->x.rem >= 0) { + ++edge->x.quo; + edge->x.rem -= edge->dy; + } + + if (edge->x.quo < prev_x) { + struct edge *pos = edge->prev; + pos->next = next; + next->prev = pos; + do { + pos = pos->prev; + } while (edge->x.quo < pos->x.quo); + pos->next->prev = edge; + edge->next = pos->next; + edge->prev = pos; + pos->next = edge; + } else + prev_x = edge->x.quo; + } else { + edge->prev->next = next; + next->prev = edge->prev; + } + + winding += edge->dir; + if ((winding & mask) == 0) { + if (next->x.quo != xend) { + cell_list_add_subspan (coverages, xstart, xend); + xstart = INT_MIN; + } + } else if (xstart == INT_MIN) + xstart = xend; + + edge = next; + } +} + +inline static void dec (struct edge *e, int h) +{ + e->height_left -= h; + if (e->height_left == 0) { + e->prev->next = e->next; + e->next->prev = e->prev; + } +} + +static void +full_row (struct active_list *active, + struct cell_list *coverages, + unsigned int mask) +{ + struct edge *left = active->head.next; + + while (&active->tail != left) { + struct edge *right; + int winding; + + dec (left, GRID_Y); + + winding = left->dir; + right = left->next; + do { + dec (right, GRID_Y); + + winding += right->dir; + if ((winding & mask) == 0 && right->next->x.quo != right->x.quo) + break; + + right = right->next; + } while (1); + + cell_list_set_rewind (coverages); + cell_list_render_edge (coverages, left, +1); + cell_list_render_edge (coverages, right, -1); + + left = right->next; + } +} + +static void +_glitter_scan_converter_init(glitter_scan_converter_t *converter, jmp_buf *jmp) +{ + polygon_init(converter->polygon, jmp); + active_list_init(converter->active); + cell_list_init(converter->coverages, jmp); + converter->xmin=0; + converter->ymin=0; + converter->xmax=0; + converter->ymax=0; +} + +static void +_glitter_scan_converter_fini(glitter_scan_converter_t *self) +{ + if (self->spans != self->spans_embedded) + free (self->spans); + + polygon_fini(self->polygon); + cell_list_fini(self->coverages); + + self->xmin=0; + self->ymin=0; + self->xmax=0; + self->ymax=0; +} + +static grid_scaled_t +int_to_grid_scaled(int i, int scale) +{ + /* Clamp to max/min representable scaled number. */ + if (i >= 0) { + if (i >= INT_MAX/scale) + i = INT_MAX/scale; + } + else { + if (i <= INT_MIN/scale) + i = INT_MIN/scale; + } + return i*scale; +} + +#define int_to_grid_scaled_x(x) int_to_grid_scaled((x), GRID_X) +#define int_to_grid_scaled_y(x) int_to_grid_scaled((x), GRID_Y) + +I glitter_status_t +glitter_scan_converter_reset( + glitter_scan_converter_t *converter, + int xmin, int ymin, + int xmax, int ymax) +{ + glitter_status_t status; + int max_num_spans; + + converter->xmin = 0; converter->xmax = 0; + converter->ymin = 0; converter->ymax = 0; + + max_num_spans = xmax - xmin + 1; + + if (max_num_spans > ARRAY_LENGTH(converter->spans_embedded)) { + converter->spans = _cairo_malloc_ab (max_num_spans, + sizeof (cairo_half_open_span_t)); + if (unlikely (converter->spans == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } else + converter->spans = converter->spans_embedded; + + xmin = int_to_grid_scaled_x(xmin); + ymin = int_to_grid_scaled_y(ymin); + xmax = int_to_grid_scaled_x(xmax); + ymax = int_to_grid_scaled_y(ymax); + + active_list_reset(converter->active); + cell_list_reset(converter->coverages); + status = polygon_reset(converter->polygon, ymin, ymax); + if (status) + return status; + + converter->xmin = xmin; + converter->xmax = xmax; + converter->ymin = ymin; + converter->ymax = ymax; + return GLITTER_STATUS_SUCCESS; +} + +/* INPUT_TO_GRID_X/Y (in_coord, out_grid_scaled, grid_scale) + * These macros convert an input coordinate in the client's + * device space to the rasterisation grid. + */ +/* Gah.. this bit of ugly defines INPUT_TO_GRID_X/Y so as to use + * shifts if possible, and something saneish if not. + */ +#if !defined(INPUT_TO_GRID_Y) && defined(GRID_Y_BITS) && GRID_Y_BITS <= GLITTER_INPUT_BITS +# define INPUT_TO_GRID_Y(in, out) (out) = (in) >> (GLITTER_INPUT_BITS - GRID_Y_BITS) +#else +# define INPUT_TO_GRID_Y(in, out) INPUT_TO_GRID_general(in, out, GRID_Y) +#endif + +#if !defined(INPUT_TO_GRID_X) && defined(GRID_X_BITS) && GRID_X_BITS <= GLITTER_INPUT_BITS +# define INPUT_TO_GRID_X(in, out) (out) = (in) >> (GLITTER_INPUT_BITS - GRID_X_BITS) +#else +# define INPUT_TO_GRID_X(in, out) INPUT_TO_GRID_general(in, out, GRID_X) +#endif + +#define INPUT_TO_GRID_general(in, out, grid_scale) do { \ + long long tmp__ = (long long)(grid_scale) * (in); \ + tmp__ >>= GLITTER_INPUT_BITS; \ + (out) = tmp__; \ +} while (0) + +/* Add a new polygon edge from pixel (x1,y1) to (x2,y2) to the scan + * converter. The coordinates represent pixel positions scaled by + * 2**GLITTER_PIXEL_BITS. If this function fails then the scan + * converter should be reset or destroyed. Dir must be +1 or -1, + * with the latter reversing the orientation of the edge. */ +I void +glitter_scan_converter_add_edge (glitter_scan_converter_t *converter, + const cairo_edge_t *edge) +{ + cairo_edge_t e; + + INPUT_TO_GRID_Y (edge->top, e.top); + INPUT_TO_GRID_Y (edge->bottom, e.bottom); + if (e.top >= e.bottom) + return; + + /* XXX: possible overflows if GRID_X/Y > 2**GLITTER_INPUT_BITS */ + INPUT_TO_GRID_Y (edge->line.p1.y, e.line.p1.y); + INPUT_TO_GRID_Y (edge->line.p2.y, e.line.p2.y); + if (e.line.p1.y == e.line.p2.y) + e.line.p2.y++; /* Fudge to prevent div-by-zero */ + + INPUT_TO_GRID_X (edge->line.p1.x, e.line.p1.x); + INPUT_TO_GRID_X (edge->line.p2.x, e.line.p2.x); + + e.dir = edge->dir; + + polygon_add_edge (converter->polygon, &e); +} + +static void +step_edges (struct active_list *active, int count) +{ + struct edge *edge; + + count *= GRID_Y; + for (edge = active->head.next; edge != &active->tail; edge = edge->next) { + edge->height_left -= count; + if (! edge->height_left) { + edge->prev->next = edge->next; + edge->next->prev = edge->prev; + } + } +} + +static glitter_status_t +blit_a8 (struct cell_list *cells, + cairo_span_renderer_t *renderer, + cairo_half_open_span_t *spans, + int y, int height, + int xmin, int xmax) +{ + struct cell *cell = cells->head.next; + int prev_x = xmin, last_x = -1; + int16_t cover = 0, last_cover = 0; + unsigned num_spans; + + if (cell == &cells->tail) + return CAIRO_STATUS_SUCCESS; + + /* Skip cells to the left of the clip region. */ + while (cell->x < xmin) { + cover += cell->covered_height; + cell = cell->next; + } + cover *= GRID_X*2; + + /* Form the spans from the coverages and areas. */ + num_spans = 0; + for (; cell->x < xmax; cell = cell->next) { + int x = cell->x; + int16_t area; + + if (x > prev_x && cover != last_cover) { + spans[num_spans].x = prev_x; + spans[num_spans].coverage = GRID_AREA_TO_ALPHA (cover); + last_cover = cover; + last_x = prev_x; + ++num_spans; + } + + cover += cell->covered_height*GRID_X*2; + area = cover - cell->uncovered_area; + + if (area != last_cover) { + spans[num_spans].x = x; + spans[num_spans].coverage = GRID_AREA_TO_ALPHA (area); + last_cover = area; + last_x = x; + ++num_spans; + } + + prev_x = x+1; + } + + if (prev_x <= xmax && cover != last_cover) { + spans[num_spans].x = prev_x; + spans[num_spans].coverage = GRID_AREA_TO_ALPHA (cover); + last_cover = cover; + last_x = prev_x; + ++num_spans; + } + + if (last_x < xmax && last_cover) { + spans[num_spans].x = xmax; + spans[num_spans].coverage = 0; + ++num_spans; + } + + /* Dump them into the renderer. */ + return renderer->render_rows (renderer, y, height, spans, num_spans); +} + +#define GRID_AREA_TO_A1(A) ((GRID_AREA_TO_ALPHA (A) > 127) ? 255 : 0) +static glitter_status_t +blit_a1 (struct cell_list *cells, + cairo_span_renderer_t *renderer, + cairo_half_open_span_t *spans, + int y, int height, + int xmin, int xmax) +{ + struct cell *cell = cells->head.next; + int prev_x = xmin, last_x = -1; + int16_t cover = 0; + uint8_t coverage, last_cover = 0; + unsigned num_spans; + + if (cell == &cells->tail) + return CAIRO_STATUS_SUCCESS; + + /* Skip cells to the left of the clip region. */ + while (cell->x < xmin) { + cover += cell->covered_height; + cell = cell->next; + } + cover *= GRID_X*2; + + /* Form the spans from the coverages and areas. */ + num_spans = 0; + for (; cell->x < xmax; cell = cell->next) { + int x = cell->x; + int16_t area; + + coverage = GRID_AREA_TO_A1 (cover); + if (x > prev_x && coverage != last_cover) { + last_x = spans[num_spans].x = prev_x; + last_cover = spans[num_spans].coverage = coverage; + ++num_spans; + } + + cover += cell->covered_height*GRID_X*2; + area = cover - cell->uncovered_area; + + coverage = GRID_AREA_TO_A1 (area); + if (coverage != last_cover) { + last_x = spans[num_spans].x = x; + last_cover = spans[num_spans].coverage = coverage; + ++num_spans; + } + + prev_x = x+1; + } + + coverage = GRID_AREA_TO_A1 (cover); + if (prev_x <= xmax && coverage != last_cover) { + last_x = spans[num_spans].x = prev_x; + last_cover = spans[num_spans].coverage = coverage; + ++num_spans; + } + + if (last_x < xmax && last_cover) { + spans[num_spans].x = xmax; + spans[num_spans].coverage = 0; + ++num_spans; + } + if (num_spans == 1) + return CAIRO_STATUS_SUCCESS; + + /* Dump them into the renderer. */ + return renderer->render_rows (renderer, y, height, spans, num_spans); +} + + +I void +glitter_scan_converter_render(glitter_scan_converter_t *converter, + unsigned int winding_mask, + int antialias, + cairo_span_renderer_t *renderer) +{ + int i, j; + int ymax_i = converter->ymax / GRID_Y; + int ymin_i = converter->ymin / GRID_Y; + int xmin_i, xmax_i; + int h = ymax_i - ymin_i; + struct polygon *polygon = converter->polygon; + struct cell_list *coverages = converter->coverages; + struct active_list *active = converter->active; + struct edge *buckets[GRID_Y] = { 0 }; + + xmin_i = converter->xmin / GRID_X; + xmax_i = converter->xmax / GRID_X; + if (xmin_i >= xmax_i) + return; + + /* Render each pixel row. */ + for (i = 0; i < h; i = j) { + int do_full_row = 0; + + j = i + 1; + + /* Determine if we can ignore this row or use the full pixel + * stepper. */ + if (! polygon->y_buckets[i]) { + if (active->head.next == &active->tail) { + active->min_height = INT_MAX; + active->is_vertical = 1; + for (; j < h && ! polygon->y_buckets[j]; j++) + ; + continue; + } + + do_full_row = can_do_full_row (active); + } + + if (do_full_row) { + /* Step by a full pixel row's worth. */ + full_row (active, coverages, winding_mask); + + if (active->is_vertical) { + while (j < h && + polygon->y_buckets[j] == NULL && + active->min_height >= 2*GRID_Y) + { + active->min_height -= GRID_Y; + j++; + } + if (j != i + 1) + step_edges (active, j - (i + 1)); + } + } else { + int sub; + + polygon_fill_buckets (active, + polygon->y_buckets[i], + (i+ymin_i)*GRID_Y, + buckets); + + /* Subsample this row. */ + for (sub = 0; sub < GRID_Y; sub++) { + if (buckets[sub]) { + active_list_merge_edges_from_bucket (active, buckets[sub]); + buckets[sub] = NULL; + } + + sub_row (active, coverages, winding_mask); + } + } + + if (antialias) + blit_a8 (coverages, renderer, converter->spans, + i+ymin_i, j-i, xmin_i, xmax_i); + else + blit_a1 (coverages, renderer, converter->spans, + i+ymin_i, j-i, xmin_i, xmax_i); + cell_list_reset (coverages); + + active->min_height -= GRID_Y; + } +} + +struct _cairo_tor22_scan_converter { + cairo_scan_converter_t base; + + glitter_scan_converter_t converter[1]; + cairo_fill_rule_t fill_rule; + cairo_antialias_t antialias; + + jmp_buf jmp; +}; + +typedef struct _cairo_tor22_scan_converter cairo_tor22_scan_converter_t; + +static void +_cairo_tor22_scan_converter_destroy (void *converter) +{ + cairo_tor22_scan_converter_t *self = converter; + if (self == NULL) { + return; + } + _glitter_scan_converter_fini (self->converter); + free(self); +} + +cairo_status_t +_cairo_tor22_scan_converter_add_polygon (void *converter, + const cairo_polygon_t *polygon) +{ + cairo_tor22_scan_converter_t *self = converter; + int i; + +#if 0 + FILE *file = fopen ("polygon.txt", "w"); + _cairo_debug_print_polygon (file, polygon); + fclose (file); +#endif + + for (i = 0; i < polygon->num_edges; i++) + glitter_scan_converter_add_edge (self->converter, &polygon->edges[i]); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_tor22_scan_converter_generate (void *converter, + cairo_span_renderer_t *renderer) +{ + cairo_tor22_scan_converter_t *self = converter; + cairo_status_t status; + + if ((status = setjmp (self->jmp))) + return _cairo_scan_converter_set_error (self, _cairo_error (status)); + + glitter_scan_converter_render (self->converter, + self->fill_rule == CAIRO_FILL_RULE_WINDING ? ~0 : 1, + self->antialias != CAIRO_ANTIALIAS_NONE, + renderer); + return CAIRO_STATUS_SUCCESS; +} + +cairo_scan_converter_t * +_cairo_tor22_scan_converter_create (int xmin, + int ymin, + int xmax, + int ymax, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias) +{ + cairo_tor22_scan_converter_t *self; + cairo_status_t status; + + self = _cairo_calloc (sizeof(struct _cairo_tor22_scan_converter)); + if (unlikely (self == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto bail_nomem; + } + + self->base.destroy = _cairo_tor22_scan_converter_destroy; + self->base.generate = _cairo_tor22_scan_converter_generate; + + _glitter_scan_converter_init (self->converter, &self->jmp); + status = glitter_scan_converter_reset (self->converter, + xmin, ymin, xmax, ymax); + if (unlikely (status)) + goto bail; + + self->fill_rule = fill_rule; + self->antialias = antialias; + + return &self->base; + + bail: + self->base.destroy(&self->base); + bail_nomem: + return _cairo_scan_converter_create_in_error (status); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-toy-font-face.c b/local/recipes/libs/cairo/source/src/cairo-toy-font-face.c new file mode 100644 index 0000000000..211723c412 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-toy-font-face.c @@ -0,0 +1,521 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005,2008 Red Hat Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Graydon Hoare + * Owen Taylor + * Behdad Esfahbod + */ + +#define _DEFAULT_SOURCE /* for strdup() */ +#include "cairoint.h" +#include "cairo-error-private.h" + + +static const cairo_font_face_t _cairo_font_face_null_pointer = { + { 0 }, /* hash_entry */ + CAIRO_STATUS_NULL_POINTER, /* status */ + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ + { 0, 0, 0, NULL }, /* user_data */ + NULL +}; + +static const cairo_font_face_t _cairo_font_face_invalid_string = { + { 0 }, /* hash_entry */ + CAIRO_STATUS_INVALID_STRING, /* status */ + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ + { 0, 0, 0, NULL }, /* user_data */ + NULL +}; + +static const cairo_font_face_t _cairo_font_face_invalid_slant = { + { 0 }, /* hash_entry */ + CAIRO_STATUS_INVALID_SLANT, /* status */ + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ + { 0, 0, 0, NULL }, /* user_data */ + NULL +}; + +static const cairo_font_face_t _cairo_font_face_invalid_weight = { + { 0 }, /* hash_entry */ + CAIRO_STATUS_INVALID_WEIGHT, /* status */ + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ + { 0, 0, 0, NULL }, /* user_data */ + NULL +}; + + +static const cairo_font_face_backend_t _cairo_toy_font_face_backend; + +static int +_cairo_toy_font_face_keys_equal (const void *key_a, + const void *key_b); + +/* We maintain a hash table from family/weight/slant => + * #cairo_font_face_t for #cairo_toy_font_t. The primary purpose of + * this mapping is to provide unique #cairo_font_face_t values so that + * our cache and mapping from #cairo_font_face_t => #cairo_scaled_font_t + * works. Once the corresponding #cairo_font_face_t objects fall out of + * downstream caches, we don't need them in this hash table anymore. + * + * Modifications to this hash table are protected by + * _cairo_toy_font_face_mutex. + */ +static cairo_hash_table_t *cairo_toy_font_face_hash_table = NULL; + +static cairo_hash_table_t * +_cairo_toy_font_face_hash_table_lock (void) +{ + CAIRO_MUTEX_LOCK (_cairo_toy_font_face_mutex); + + if (cairo_toy_font_face_hash_table == NULL) + { + cairo_toy_font_face_hash_table = + _cairo_hash_table_create (_cairo_toy_font_face_keys_equal); + + if (cairo_toy_font_face_hash_table == NULL) { + CAIRO_MUTEX_UNLOCK (_cairo_toy_font_face_mutex); + return NULL; + } + } + + return cairo_toy_font_face_hash_table; +} + +static void +_cairo_toy_font_face_hash_table_unlock (void) +{ + CAIRO_MUTEX_UNLOCK (_cairo_toy_font_face_mutex); +} + +/** + * _cairo_toy_font_face_init_key: + * + * Initialize those portions of #cairo_toy_font_face_t needed to use + * it as a hash table key, including the hash code buried away in + * font_face->base.hash_entry. No memory allocation is performed here + * so that no fini call is needed. We do this to make it easier to use + * an automatic #cairo_toy_font_face_t variable as a key. + **/ +static void +_cairo_toy_font_face_init_key (cairo_toy_font_face_t *key, + const char *family, + cairo_font_slant_t slant, + cairo_font_weight_t weight) +{ + uintptr_t hash; + + key->family = family; + key->owns_family = FALSE; + + key->slant = slant; + key->weight = weight; + + /* 1607 and 1451 are just a couple of arbitrary primes. */ + hash = _cairo_hash_string (family); + hash += ((uintptr_t) slant) * 1607; + hash += ((uintptr_t) weight) * 1451; + + key->base.hash_entry.hash = hash; +} + +static cairo_status_t +_cairo_toy_font_face_create_impl_face (cairo_toy_font_face_t *font_face, + cairo_font_face_t **impl_font_face) +{ + const cairo_font_face_backend_t * backend = CAIRO_FONT_FACE_BACKEND_DEFAULT; + cairo_int_status_t status = CAIRO_INT_STATUS_UNSUPPORTED; + + if (unlikely (font_face->base.status)) + return font_face->base.status; + + if (backend->create_for_toy != NULL && + 0 != strncmp (font_face->family, CAIRO_USER_FONT_FAMILY_DEFAULT, + strlen (CAIRO_USER_FONT_FAMILY_DEFAULT))) + { + status = backend->create_for_toy (font_face, impl_font_face); + } + + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + backend = &_cairo_user_font_face_backend; + status = backend->create_for_toy (font_face, impl_font_face); + } + + return status; +} + +static cairo_status_t +_cairo_toy_font_face_init (cairo_toy_font_face_t *font_face, + const char *family, + cairo_font_slant_t slant, + cairo_font_weight_t weight) +{ + char *family_copy; + cairo_status_t status; + + family_copy = strdup (family); + if (unlikely (family_copy == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_toy_font_face_init_key (font_face, family_copy, slant, weight); + font_face->owns_family = TRUE; + + _cairo_font_face_init (&font_face->base, &_cairo_toy_font_face_backend); + + status = _cairo_toy_font_face_create_impl_face (font_face, + &font_face->impl_face); + if (unlikely (status)) { + free (family_copy); + return status; + } + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_toy_font_face_fini (cairo_toy_font_face_t *font_face) +{ + /* We assert here that we own font_face->family before casting + * away the const qualifier. */ + assert (font_face->owns_family); + free ((char*) font_face->family); + + if (font_face->impl_face) + cairo_font_face_destroy (font_face->impl_face); +} + +static int +_cairo_toy_font_face_keys_equal (const void *key_a, + const void *key_b) +{ + const cairo_toy_font_face_t *face_a = key_a; + const cairo_toy_font_face_t *face_b = key_b; + + return (strcmp (face_a->family, face_b->family) == 0 && + face_a->slant == face_b->slant && + face_a->weight == face_b->weight); +} + +/** + * cairo_toy_font_face_create: + * @family: a font family name, encoded in UTF-8 + * @slant: the slant for the font + * @weight: the weight for the font + * + * Creates a font face from a triplet of family, slant, and weight. + * These font faces are used in implementation of the #cairo_t "toy" + * font API. + * + * If @family is the zero-length string "", the platform-specific default + * family is assumed. The default family then can be queried using + * cairo_toy_font_face_get_family(). + * + * The cairo_select_font_face() function uses this to create font faces. + * See that function for limitations and other details of toy font faces. + * + * Return value: a newly created #cairo_font_face_t. Free with + * cairo_font_face_destroy() when you are done using it. + * + * Since: 1.8 + **/ +cairo_font_face_t * +cairo_toy_font_face_create (const char *family, + cairo_font_slant_t slant, + cairo_font_weight_t weight) +{ + cairo_status_t status; + cairo_toy_font_face_t key, *font_face; + cairo_hash_table_t *hash_table; + + if (family == NULL) + return (cairo_font_face_t*) &_cairo_font_face_null_pointer; + + /* Make sure we've got valid UTF-8 for the family */ + status = _cairo_utf8_to_ucs4 (family, -1, NULL, NULL); + if (unlikely (status)) { + if (status == CAIRO_STATUS_INVALID_STRING) + return (cairo_font_face_t*) &_cairo_font_face_invalid_string; + + return (cairo_font_face_t*) &_cairo_font_face_nil; + } + + switch (slant) { + case CAIRO_FONT_SLANT_NORMAL: + case CAIRO_FONT_SLANT_ITALIC: + case CAIRO_FONT_SLANT_OBLIQUE: + break; + default: + return (cairo_font_face_t*) &_cairo_font_face_invalid_slant; + } + + switch (weight) { + case CAIRO_FONT_WEIGHT_NORMAL: + case CAIRO_FONT_WEIGHT_BOLD: + break; + default: + return (cairo_font_face_t*) &_cairo_font_face_invalid_weight; + } + + if (*family == '\0') + family = CAIRO_FONT_FAMILY_DEFAULT; + + hash_table = _cairo_toy_font_face_hash_table_lock (); + if (unlikely (hash_table == NULL)) + goto UNWIND; + + _cairo_toy_font_face_init_key (&key, family, slant, weight); + + /* Return existing font_face if it exists in the hash table. */ + font_face = _cairo_hash_table_lookup (hash_table, + &key.base.hash_entry); + if (font_face != NULL) { + if (font_face->base.status == CAIRO_STATUS_SUCCESS) { + cairo_font_face_reference (&font_face->base); + _cairo_toy_font_face_hash_table_unlock (); + return &font_face->base; + } + + /* remove the bad font from the hash table */ + _cairo_hash_table_remove (hash_table, &font_face->base.hash_entry); + } + + /* Otherwise create it and insert into hash table. */ + font_face = _cairo_calloc (sizeof (cairo_toy_font_face_t)); + if (unlikely (font_face == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto UNWIND_HASH_TABLE_LOCK; + } + + status = _cairo_toy_font_face_init (font_face, family, slant, weight); + if (unlikely (status)) + goto UNWIND_FONT_FACE_MALLOC; + + assert (font_face->base.hash_entry.hash == key.base.hash_entry.hash); + status = _cairo_hash_table_insert (hash_table, &font_face->base.hash_entry); + if (unlikely (status)) + goto UNWIND_FONT_FACE_INIT; + + _cairo_toy_font_face_hash_table_unlock (); + + return &font_face->base; + + UNWIND_FONT_FACE_INIT: + _cairo_toy_font_face_fini (font_face); + UNWIND_FONT_FACE_MALLOC: + free (font_face); + UNWIND_HASH_TABLE_LOCK: + _cairo_toy_font_face_hash_table_unlock (); + UNWIND: + return (cairo_font_face_t*) &_cairo_font_face_nil; +} + +static cairo_bool_t +_cairo_toy_font_face_destroy (void *abstract_face) +{ + cairo_toy_font_face_t *font_face = abstract_face; + cairo_hash_table_t *hash_table; + + hash_table = _cairo_toy_font_face_hash_table_lock (); + /* All created objects must have been mapped in the hash table. */ + assert (hash_table != NULL); + + if (! _cairo_reference_count_dec_and_test (&font_face->base.ref_count)) { + /* somebody recreated the font whilst we waited for the lock */ + _cairo_toy_font_face_hash_table_unlock (); + return FALSE; + } + + /* Font faces in SUCCESS status are guaranteed to be in the + * hashtable. Font faces in an error status are removed from the + * hashtable if they are found during a lookup, thus they should + * only be removed if they are in the hashtable. */ + if (likely (font_face->base.status == CAIRO_STATUS_SUCCESS) || + _cairo_hash_table_lookup (hash_table, &font_face->base.hash_entry) == font_face) + _cairo_hash_table_remove (hash_table, &font_face->base.hash_entry); + + _cairo_toy_font_face_hash_table_unlock (); + + _cairo_toy_font_face_fini (font_face); + return TRUE; +} + +static cairo_status_t +_cairo_toy_font_face_scaled_font_create (void *abstract_font_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options, + cairo_scaled_font_t **scaled_font) +{ + cairo_toy_font_face_t *font_face = (cairo_toy_font_face_t *) abstract_font_face; + + ASSERT_NOT_REACHED; + + return _cairo_font_face_set_error (&font_face->base, CAIRO_STATUS_FONT_TYPE_MISMATCH); +} + +static cairo_font_face_t * +_cairo_toy_font_face_get_implementation (void *abstract_font_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options) +{ + cairo_toy_font_face_t *font_face = abstract_font_face; + + if (font_face->impl_face) { + cairo_font_face_t *impl = font_face->impl_face; + + if (impl->backend->get_implementation != NULL) { + return impl->backend->get_implementation (impl, + font_matrix, + ctm, + options); + } + + return cairo_font_face_reference (impl); + } + + return abstract_font_face; +} + +static cairo_bool_t +_cairo_font_face_is_toy (cairo_font_face_t *font_face) +{ + return font_face->backend == &_cairo_toy_font_face_backend; +} + +/** + * cairo_toy_font_face_get_family: + * @font_face: A toy font face + * + * Gets the family name of a toy font. + * + * Return value: The family name. This string is owned by the font face + * and remains valid as long as the font face is alive (referenced). + * + * Since: 1.8 + **/ +const char * +cairo_toy_font_face_get_family (cairo_font_face_t *font_face) +{ + cairo_toy_font_face_t *toy_font_face; + + if (font_face->status) + return CAIRO_FONT_FAMILY_DEFAULT; + + toy_font_face = (cairo_toy_font_face_t *) font_face; + if (! _cairo_font_face_is_toy (font_face)) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH)) + return CAIRO_FONT_FAMILY_DEFAULT; + } + assert (toy_font_face->owns_family); + return toy_font_face->family; +} + +/** + * cairo_toy_font_face_get_slant: + * @font_face: A toy font face + * + * Gets the slant a toy font. + * + * Return value: The slant value + * + * Since: 1.8 + **/ +cairo_font_slant_t +cairo_toy_font_face_get_slant (cairo_font_face_t *font_face) +{ + cairo_toy_font_face_t *toy_font_face; + + if (font_face->status) + return CAIRO_FONT_SLANT_DEFAULT; + + toy_font_face = (cairo_toy_font_face_t *) font_face; + if (! _cairo_font_face_is_toy (font_face)) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH)) + return CAIRO_FONT_SLANT_DEFAULT; + } + return toy_font_face->slant; +} + +/** + * cairo_toy_font_face_get_weight: + * @font_face: A toy font face + * + * Gets the weight a toy font. + * + * Return value: The weight value + * + * Since: 1.8 + **/ +cairo_font_weight_t +cairo_toy_font_face_get_weight (cairo_font_face_t *font_face) +{ + cairo_toy_font_face_t *toy_font_face; + + if (font_face->status) + return CAIRO_FONT_WEIGHT_DEFAULT; + + toy_font_face = (cairo_toy_font_face_t *) font_face; + if (! _cairo_font_face_is_toy (font_face)) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH)) + return CAIRO_FONT_WEIGHT_DEFAULT; + } + return toy_font_face->weight; +} + +static const cairo_font_face_backend_t _cairo_toy_font_face_backend = { + CAIRO_FONT_TYPE_TOY, + NULL, /* create_for_toy */ + _cairo_toy_font_face_destroy, + _cairo_toy_font_face_scaled_font_create, + _cairo_toy_font_face_get_implementation +}; + +void +_cairo_toy_font_face_reset_static_data (void) +{ + cairo_hash_table_t *hash_table; + + /* We manually acquire the lock rather than calling + * cairo_toy_font_face_hash_table_lock simply to avoid + * creating the table only to destroy it again. */ + CAIRO_MUTEX_LOCK (_cairo_toy_font_face_mutex); + hash_table = cairo_toy_font_face_hash_table; + cairo_toy_font_face_hash_table = NULL; + CAIRO_MUTEX_UNLOCK (_cairo_toy_font_face_mutex); + + if (hash_table != NULL) + _cairo_hash_table_destroy (hash_table); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-traps-compositor.c b/local/recipes/libs/cairo/source/src/cairo-traps-compositor.c new file mode 100644 index 0000000000..3414fc2684 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-traps-compositor.c @@ -0,0 +1,2351 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Joonas Pihlaja + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-box-inline.h" +#include "cairo-boxes-private.h" +#include "cairo-clip-inline.h" +#include "cairo-clip-private.h" +#include "cairo-composite-rectangles-private.h" +#include "cairo-compositor-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-pattern-inline.h" +#include "cairo-paginated-private.h" +#include "cairo-recording-surface-inline.h" +#include "cairo-surface-subsurface-private.h" +#include "cairo-surface-snapshot-inline.h" +#include "cairo-surface-observer-private.h" +#include "cairo-region-private.h" +#include "cairo-spans-private.h" +#include "cairo-traps-private.h" +#include "cairo-tristrip-private.h" + +typedef cairo_int_status_t +(*draw_func_t) (const cairo_traps_compositor_t *compositor, + cairo_surface_t *dst, + void *closure, + cairo_operator_t op, + cairo_surface_t *src, + int src_x, + int src_y, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip); + +static void do_unaligned_row(void (*blt)(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage), + void *closure, + const cairo_box_t *b, + int tx, int y, int h, + uint16_t coverage) +{ + int x1 = _cairo_fixed_integer_part (b->p1.x) - tx; + int x2 = _cairo_fixed_integer_part (b->p2.x) - tx; + if (x2 > x1) { + if (! _cairo_fixed_is_integer (b->p1.x)) { + blt(closure, x1, y, 1, h, + coverage * (256 - _cairo_fixed_fractional_part (b->p1.x))); + x1++; + } + + if (x2 > x1) + blt(closure, x1, y, x2-x1, h, (coverage << 8) - (coverage >> 8)); + + if (! _cairo_fixed_is_integer (b->p2.x)) + blt(closure, x2, y, 1, h, + coverage * _cairo_fixed_fractional_part (b->p2.x)); + } else + blt(closure, x1, y, 1, h, + coverage * (b->p2.x - b->p1.x)); +} + +static void do_unaligned_box(void (*blt)(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage), + void *closure, + const cairo_box_t *b, int tx, int ty) +{ + int y1 = _cairo_fixed_integer_part (b->p1.y) - ty; + int y2 = _cairo_fixed_integer_part (b->p2.y) - ty; + if (y2 > y1) { + if (! _cairo_fixed_is_integer (b->p1.y)) { + do_unaligned_row(blt, closure, b, tx, y1, 1, + 256 - _cairo_fixed_fractional_part (b->p1.y)); + y1++; + } + + if (y2 > y1) + do_unaligned_row(blt, closure, b, tx, y1, y2-y1, 256); + + if (! _cairo_fixed_is_integer (b->p2.y)) + do_unaligned_row(blt, closure, b, tx, y2, 1, + _cairo_fixed_fractional_part (b->p2.y)); + } else + do_unaligned_row(blt, closure, b, tx, y1, 1, + b->p2.y - b->p1.y); +} + +struct blt_in { + const cairo_traps_compositor_t *compositor; + cairo_surface_t *dst; + cairo_boxes_t boxes; +}; + +static void blt_in(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage) +{ + struct blt_in *info = closure; + cairo_color_t color; + + if (CAIRO_ALPHA_SHORT_IS_OPAQUE (coverage)) + return; + + _cairo_box_from_integers (&info->boxes.chunks.base[0], x, y, w, h); + + _cairo_color_init_rgba (&color, 0, 0, 0, coverage / (double) 0xffff); + info->compositor->fill_boxes (info->dst, + CAIRO_OPERATOR_IN, &color, + &info->boxes); +} + +static void +add_rect_with_offset (cairo_boxes_t *boxes, int x1, int y1, int x2, int y2, int dx, int dy) +{ + cairo_box_t box; + cairo_int_status_t status; + + box.p1.x = _cairo_fixed_from_int (x1 - dx); + box.p1.y = _cairo_fixed_from_int (y1 - dy); + box.p2.x = _cairo_fixed_from_int (x2 - dx); + box.p2.y = _cairo_fixed_from_int (y2 - dy); + + status = _cairo_boxes_add (boxes, CAIRO_ANTIALIAS_DEFAULT, &box); + assert (status == CAIRO_INT_STATUS_SUCCESS); +} + +static cairo_int_status_t +combine_clip_as_traps (const cairo_traps_compositor_t *compositor, + cairo_surface_t *mask, + const cairo_clip_t *clip, + const cairo_rectangle_int_t *extents) +{ + cairo_polygon_t polygon; + cairo_fill_rule_t fill_rule; + cairo_antialias_t antialias; + cairo_traps_t traps; + cairo_surface_t *src; + cairo_box_t box; + cairo_rectangle_int_t fixup; + int src_x, src_y; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + status = _cairo_clip_get_polygon (clip, &polygon, + &fill_rule, &antialias); + if (status) + return status; + + _cairo_traps_init (&traps); + status = _cairo_bentley_ottmann_tessellate_polygon (&traps, + &polygon, + fill_rule); + _cairo_polygon_fini (&polygon); + if (unlikely (status)) + return status; + + src = compositor->pattern_to_surface (mask, NULL, FALSE, + extents, NULL, + &src_x, &src_y); + if (unlikely (src->status)) { + _cairo_traps_fini (&traps); + return src->status; + } + + status = compositor->composite_traps (mask, CAIRO_OPERATOR_IN, src, + src_x, src_y, + extents->x, extents->y, + extents, + antialias, &traps); + + _cairo_traps_extents (&traps, &box); + _cairo_box_round_to_rectangle (&box, &fixup); + _cairo_traps_fini (&traps); + cairo_surface_destroy (src); + + if (unlikely (status)) + return status; + + if (! _cairo_rectangle_intersect (&fixup, extents)) + return CAIRO_STATUS_SUCCESS; + + if (fixup.width < extents->width || fixup.height < extents->height) { + cairo_boxes_t clear; + + _cairo_boxes_init (&clear); + + /* top */ + if (fixup.y != extents->y) { + add_rect_with_offset (&clear, + extents->x, extents->y, + extents->x + extents->width, + fixup.y, + extents->x, extents->y); + } + /* left */ + if (fixup.x != extents->x) { + add_rect_with_offset (&clear, + extents->x, fixup.y, + fixup.x, + fixup.y + fixup.height, + extents->x, extents->y); + } + /* right */ + if (fixup.x + fixup.width != extents->x + extents->width) { + add_rect_with_offset (&clear, + fixup.x + fixup.width, + fixup.y, + extents->x + extents->width, + fixup.y + fixup.height, + extents->x, extents->y); + } + /* bottom */ + if (fixup.y + fixup.height != extents->y + extents->height) { + add_rect_with_offset (&clear, + extents->x, + fixup.y + fixup.height, + extents->x + extents->width, + extents->y + extents->height, + extents->x, extents->y); + } + + status = compositor->fill_boxes (mask, + CAIRO_OPERATOR_CLEAR, + CAIRO_COLOR_TRANSPARENT, + &clear); + + _cairo_boxes_fini (&clear); + } + + return status; +} + +static cairo_status_t +__clip_to_surface (const cairo_traps_compositor_t *compositor, + const cairo_composite_rectangles_t *composite, + const cairo_rectangle_int_t *extents, + cairo_surface_t **surface) +{ + cairo_surface_t *mask; + cairo_polygon_t polygon; + cairo_fill_rule_t fill_rule; + cairo_antialias_t antialias; + cairo_traps_t traps; + cairo_boxes_t clear; + cairo_surface_t *src; + int src_x, src_y; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + status = _cairo_clip_get_polygon (composite->clip, &polygon, + &fill_rule, &antialias); + if (status) + return status; + + _cairo_traps_init (&traps); + status = _cairo_bentley_ottmann_tessellate_polygon (&traps, + &polygon, + fill_rule); + _cairo_polygon_fini (&polygon); + if (unlikely (status)) + return status; + + mask = _cairo_surface_create_scratch (composite->surface, + CAIRO_CONTENT_ALPHA, + extents->width, + extents->height, + NULL); + if (unlikely (mask->status)) { + _cairo_traps_fini (&traps); + return status; + } + + src = compositor->pattern_to_surface (mask, NULL, FALSE, + extents, NULL, + &src_x, &src_y); + if (unlikely (status = src->status)) + goto error; + + status = compositor->acquire (mask); + if (unlikely (status)) + goto error; + + _cairo_boxes_init_from_rectangle (&clear, + 0, 0, + extents->width, + extents->height); + status = compositor->fill_boxes (mask, + CAIRO_OPERATOR_CLEAR, + CAIRO_COLOR_TRANSPARENT, + &clear); + if (unlikely (status)) + goto error_release; + + status = compositor->composite_traps (mask, CAIRO_OPERATOR_ADD, src, + src_x, src_y, + extents->x, extents->y, + extents, + antialias, &traps); + if (unlikely (status)) + goto error_release; + + compositor->release (mask); + *surface = mask; +out: + cairo_surface_destroy (src); + _cairo_traps_fini (&traps); + return status; + +error_release: + compositor->release (mask); +error: + cairo_surface_destroy (mask); + goto out; +} + +static cairo_surface_t * +traps_get_clip_surface (const cairo_traps_compositor_t *compositor, + const cairo_composite_rectangles_t *composite, + const cairo_rectangle_int_t *extents) +{ + cairo_surface_t *surface = NULL; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + status = __clip_to_surface (compositor, composite, extents, &surface); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + surface = _cairo_surface_create_scratch (composite->surface, + CAIRO_CONTENT_ALPHA, + extents->width, + extents->height, + CAIRO_COLOR_WHITE); + if (unlikely (surface->status)) + return surface; + + status = _cairo_clip_combine_with_surface (composite->clip, surface, + extents->x, extents->y); + } + if (unlikely (status)) { + cairo_surface_destroy (surface); + surface = _cairo_surface_create_in_error (status); + } + + return surface; +} + +static void blt_unaligned_boxes(const cairo_traps_compositor_t *compositor, + cairo_surface_t *surface, + int dx, int dy, + cairo_box_t *boxes, + int num_boxes) +{ + struct blt_in info; + int i; + + info.compositor = compositor; + info.dst = surface; + _cairo_boxes_init (&info.boxes); + info.boxes.num_boxes = 1; + for (i = 0; i < num_boxes; i++) { + cairo_box_t *b = &boxes[i]; + + if (! _cairo_fixed_is_integer (b->p1.x) || + ! _cairo_fixed_is_integer (b->p1.y) || + ! _cairo_fixed_is_integer (b->p2.x) || + ! _cairo_fixed_is_integer (b->p2.y)) + { + do_unaligned_box(blt_in, &info, b, dx, dy); + } + } +} + +static cairo_surface_t * +create_composite_mask (const cairo_traps_compositor_t *compositor, + cairo_surface_t *dst, + void *draw_closure, + draw_func_t draw_func, + draw_func_t mask_func, + const cairo_composite_rectangles_t *extents) +{ + cairo_surface_t *surface, *src; + cairo_int_status_t status; + int src_x, src_y; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + surface = _cairo_surface_create_scratch (dst, CAIRO_CONTENT_ALPHA, + extents->bounded.width, + extents->bounded.height, + NULL); + if (unlikely (surface->status)) + return surface; + + src = compositor->pattern_to_surface (surface, + &_cairo_pattern_white.base, + FALSE, + &extents->bounded, + &extents->bounded, + &src_x, &src_y); + if (unlikely (src->status)) { + cairo_surface_destroy (surface); + return src; + } + + status = compositor->acquire (surface); + if (unlikely (status)) { + cairo_surface_destroy (src); + cairo_surface_destroy (surface); + return _cairo_surface_create_in_error (status); + } + + if (!surface->is_clear) { + cairo_boxes_t clear; + + _cairo_boxes_init_from_rectangle (&clear, + 0, 0, + extents->bounded.width, + extents->bounded.height); + status = compositor->fill_boxes (surface, + CAIRO_OPERATOR_CLEAR, + CAIRO_COLOR_TRANSPARENT, + &clear); + if (unlikely (status)) + goto error; + + surface->is_clear = TRUE; + } + + if (mask_func) { + status = mask_func (compositor, surface, draw_closure, + CAIRO_OPERATOR_SOURCE, src, src_x, src_y, + extents->bounded.x, extents->bounded.y, + &extents->bounded, extents->clip); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + surface->is_clear = FALSE; + goto out; + } + if (unlikely (status != CAIRO_INT_STATUS_UNSUPPORTED)) + goto error; + } + + /* Is it worth setting the clip region here? */ + status = draw_func (compositor, surface, draw_closure, + CAIRO_OPERATOR_ADD, src, src_x, src_y, + extents->bounded.x, extents->bounded.y, + &extents->bounded, NULL); + if (unlikely (status)) + goto error; + + surface->is_clear = FALSE; + if (extents->clip->path != NULL) { + status = combine_clip_as_traps (compositor, surface, + extents->clip, &extents->bounded); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + status = _cairo_clip_combine_with_surface (extents->clip, surface, + extents->bounded.x, + extents->bounded.y); + } + if (unlikely (status)) + goto error; + } else if (extents->clip->boxes) { + blt_unaligned_boxes(compositor, surface, + extents->bounded.x, extents->bounded.y, + extents->clip->boxes, extents->clip->num_boxes); + + } + +out: + compositor->release (surface); + cairo_surface_destroy (src); + return surface; + +error: + compositor->release (surface); + if (status != CAIRO_INT_STATUS_NOTHING_TO_DO) { + cairo_surface_destroy (surface); + surface = _cairo_surface_create_in_error (status); + } + cairo_surface_destroy (src); + return surface; +} + +/* Handles compositing with a clip surface when the operator allows + * us to combine the clip with the mask + */ +static cairo_status_t +clip_and_composite_with_mask (const cairo_traps_compositor_t *compositor, + const cairo_composite_rectangles_t*extents, + draw_func_t draw_func, + draw_func_t mask_func, + void *draw_closure, + cairo_operator_t op, + cairo_surface_t *src, + int src_x, int src_y) +{ + cairo_surface_t *dst = extents->surface; + cairo_surface_t *mask; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + mask = create_composite_mask (compositor, dst, draw_closure, + draw_func, mask_func, + extents); + if (unlikely (mask->status)) + return mask->status; + + if (mask->is_clear) + goto skip; + + if (src != NULL || dst->content != CAIRO_CONTENT_ALPHA) { + compositor->composite (dst, op, src, mask, + extents->bounded.x + src_x, + extents->bounded.y + src_y, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + } else { + compositor->composite (dst, op, mask, NULL, + 0, 0, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + } + +skip: + cairo_surface_destroy (mask); + return CAIRO_STATUS_SUCCESS; +} + +/* Handles compositing with a clip surface when we have to do the operation + * in two pieces and combine them together. + */ +static cairo_status_t +clip_and_composite_combine (const cairo_traps_compositor_t *compositor, + const cairo_composite_rectangles_t*extents, + draw_func_t draw_func, + void *draw_closure, + cairo_operator_t op, + cairo_surface_t *src, + int src_x, int src_y) +{ + cairo_surface_t *dst = extents->surface; + cairo_surface_t *tmp, *clip; + cairo_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + tmp = _cairo_surface_create_scratch (dst, dst->content, + extents->bounded.width, + extents->bounded.height, + NULL); + if (unlikely (tmp->status)) + return tmp->status; + + status = compositor->acquire (tmp); + if (unlikely (status)) { + cairo_surface_destroy (tmp); + return status; + } + + compositor->composite (tmp, + dst->is_clear ? CAIRO_OPERATOR_CLEAR : CAIRO_OPERATOR_SOURCE, + dst, NULL, + extents->bounded.x, extents->bounded.y, + 0, 0, + 0, 0, + extents->bounded.width, extents->bounded.height); + + status = draw_func (compositor, tmp, draw_closure, op, + src, src_x, src_y, + extents->bounded.x, extents->bounded.y, + &extents->bounded, NULL); + + if (unlikely (status)) + goto cleanup; + + clip = traps_get_clip_surface (compositor, extents, &extents->bounded); + if (unlikely ((status = clip->status))) + goto cleanup; + + if (dst->is_clear) { + compositor->composite (dst, CAIRO_OPERATOR_SOURCE, tmp, clip, + 0, 0, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + } else { + compositor->lerp (dst, tmp, clip, + 0, 0, + 0,0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + } + cairo_surface_destroy (clip); + +cleanup: + compositor->release (tmp); + cairo_surface_destroy (tmp); + + return status; +} + +/* Handles compositing for %CAIRO_OPERATOR_SOURCE, which is special; it's + * defined as (src IN mask IN clip) ADD (dst OUT (mask IN clip)) + */ +static cairo_status_t +clip_and_composite_source (const cairo_traps_compositor_t *compositor, + cairo_surface_t *dst, + draw_func_t draw_func, + draw_func_t mask_func, + void *draw_closure, + cairo_surface_t *src, + int src_x, + int src_y, + const cairo_composite_rectangles_t *extents) +{ + cairo_surface_t *mask; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + /* Create a surface that is mask IN clip */ + mask = create_composite_mask (compositor, dst, draw_closure, + draw_func, mask_func, + extents); + if (unlikely (mask->status)) + return mask->status; + + if (mask->is_clear) + goto skip; + + if (dst->is_clear) { + compositor->composite (dst, CAIRO_OPERATOR_SOURCE, src, mask, + extents->bounded.x + src_x, extents->bounded.y + src_y, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + } else { + compositor->lerp (dst, src, mask, + extents->bounded.x + src_x, extents->bounded.y + src_y, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + } + +skip: + cairo_surface_destroy (mask); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +can_reduce_alpha_op (cairo_operator_t op) +{ + int iop = op; + switch (iop) { + case CAIRO_OPERATOR_OVER: + case CAIRO_OPERATOR_SOURCE: + case CAIRO_OPERATOR_ADD: + return TRUE; + default: + return FALSE; + } +} + +static cairo_bool_t +reduce_alpha_op (cairo_composite_rectangles_t *extents) +{ + cairo_surface_t *dst = extents->surface; + cairo_operator_t op = extents->op; + const cairo_pattern_t *pattern = &extents->source_pattern.base; + return dst->is_clear && + dst->content == CAIRO_CONTENT_ALPHA && + _cairo_pattern_is_opaque_solid (pattern) && + can_reduce_alpha_op (op); +} + +static cairo_status_t +fixup_unbounded_with_mask (const cairo_traps_compositor_t *compositor, + const cairo_composite_rectangles_t *extents) +{ + cairo_surface_t *dst = extents->surface; + cairo_surface_t *mask; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + /* XXX can we avoid querying the clip surface again? */ + mask = traps_get_clip_surface (compositor, extents, &extents->unbounded); + if (unlikely (mask->status)) + return mask->status; + + /* top */ + if (extents->bounded.y != extents->unbounded.y) { + int x = extents->unbounded.x; + int y = extents->unbounded.y; + int width = extents->unbounded.width; + int height = extents->bounded.y - y; + + compositor->composite (dst, CAIRO_OPERATOR_DEST_OUT, mask, NULL, + 0, 0, + 0, 0, + x, y, + width, height); + } + + /* left */ + if (extents->bounded.x != extents->unbounded.x) { + int x = extents->unbounded.x; + int y = extents->bounded.y; + int width = extents->bounded.x - x; + int height = extents->bounded.height; + + compositor->composite (dst, CAIRO_OPERATOR_DEST_OUT, mask, NULL, + 0, y - extents->unbounded.y, + 0, 0, + x, y, + width, height); + } + + /* right */ + if (extents->bounded.x + extents->bounded.width != extents->unbounded.x + extents->unbounded.width) { + int x = extents->bounded.x + extents->bounded.width; + int y = extents->bounded.y; + int width = extents->unbounded.x + extents->unbounded.width - x; + int height = extents->bounded.height; + + compositor->composite (dst, CAIRO_OPERATOR_DEST_OUT, mask, NULL, + x - extents->unbounded.x, y - extents->unbounded.y, + 0, 0, + x, y, + width, height); + } + + /* bottom */ + if (extents->bounded.y + extents->bounded.height != extents->unbounded.y + extents->unbounded.height) { + int x = extents->unbounded.x; + int y = extents->bounded.y + extents->bounded.height; + int width = extents->unbounded.width; + int height = extents->unbounded.y + extents->unbounded.height - y; + + compositor->composite (dst, CAIRO_OPERATOR_DEST_OUT, mask, NULL, + 0, y - extents->unbounded.y, + 0, 0, + x, y, + width, height); + } + + cairo_surface_destroy (mask); + + return CAIRO_STATUS_SUCCESS; +} + +static void +add_rect (cairo_boxes_t *boxes, int x1, int y1, int x2, int y2) +{ + cairo_box_t box; + cairo_int_status_t status; + + box.p1.x = _cairo_fixed_from_int (x1); + box.p1.y = _cairo_fixed_from_int (y1); + box.p2.x = _cairo_fixed_from_int (x2); + box.p2.y = _cairo_fixed_from_int (y2); + + status = _cairo_boxes_add (boxes, CAIRO_ANTIALIAS_DEFAULT, &box); + assert (status == CAIRO_INT_STATUS_SUCCESS); +} + +static cairo_status_t +fixup_unbounded (const cairo_traps_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_surface_t *dst = extents->surface; + cairo_boxes_t clear, tmp; + cairo_box_t box; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (extents->bounded.width == extents->unbounded.width && + extents->bounded.height == extents->unbounded.height) + { + return CAIRO_STATUS_SUCCESS; + } + + assert (extents->clip->path == NULL); + + /* subtract the drawn boxes from the unbounded area */ + _cairo_boxes_init (&clear); + + box.p1.x = _cairo_fixed_from_int (extents->unbounded.x + extents->unbounded.width); + box.p1.y = _cairo_fixed_from_int (extents->unbounded.y); + box.p2.x = _cairo_fixed_from_int (extents->unbounded.x); + box.p2.y = _cairo_fixed_from_int (extents->unbounded.y + extents->unbounded.height); + + if (boxes == NULL) { + if (extents->bounded.width == 0 || extents->bounded.height == 0) { + goto empty; + } else { + /* top */ + if (extents->bounded.y != extents->unbounded.y) { + add_rect (&clear, + extents->unbounded.x, extents->unbounded.y, + extents->unbounded.x + extents->unbounded.width, + extents->bounded.y); + } + /* left */ + if (extents->bounded.x != extents->unbounded.x) { + add_rect (&clear, + extents->unbounded.x, extents->bounded.y, + extents->bounded.x, + extents->bounded.y + extents->bounded.height); + } + /* right */ + if (extents->bounded.x + extents->bounded.width != extents->unbounded.x + extents->unbounded.width) { + add_rect (&clear, + extents->bounded.x + extents->bounded.width, + extents->bounded.y, + extents->unbounded.x + extents->unbounded.width, + extents->bounded.y + extents->bounded.height); + } + /* bottom */ + if (extents->bounded.y + extents->bounded.height != extents->unbounded.y + extents->unbounded.height) { + add_rect (&clear, + extents->unbounded.x, + extents->bounded.y + extents->bounded.height, + extents->unbounded.x + extents->unbounded.width, + extents->unbounded.y + extents->unbounded.height); + } + } + } else if (boxes->num_boxes) { + _cairo_boxes_init (&tmp); + + assert (boxes->is_pixel_aligned); + + status = _cairo_boxes_add (&tmp, CAIRO_ANTIALIAS_DEFAULT, &box); + assert (status == CAIRO_INT_STATUS_SUCCESS); + + tmp.chunks.next = &boxes->chunks; + tmp.num_boxes += boxes->num_boxes; + + status = _cairo_bentley_ottmann_tessellate_boxes (&tmp, + CAIRO_FILL_RULE_WINDING, + &clear); + tmp.chunks.next = NULL; + if (unlikely (status)) + goto error; + } else { +empty: + box.p1.x = _cairo_fixed_from_int (extents->unbounded.x); + box.p2.x = _cairo_fixed_from_int (extents->unbounded.x + extents->unbounded.width); + + status = _cairo_boxes_add (&clear, CAIRO_ANTIALIAS_DEFAULT, &box); + assert (status == CAIRO_INT_STATUS_SUCCESS); + } + + /* Now intersect with the clip boxes */ + if (extents->clip->num_boxes) { + _cairo_boxes_init_for_array (&tmp, + extents->clip->boxes, + extents->clip->num_boxes); + status = _cairo_boxes_intersect (&clear, &tmp, &clear); + if (unlikely (status)) + goto error; + } + + status = compositor->fill_boxes (dst, + CAIRO_OPERATOR_CLEAR, + CAIRO_COLOR_TRANSPARENT, + &clear); + +error: + _cairo_boxes_fini (&clear); + return status; +} + +enum { + NEED_CLIP_REGION = 0x1, + NEED_CLIP_SURFACE = 0x2, + FORCE_CLIP_REGION = 0x4, +}; + +static cairo_bool_t +need_bounded_clip (cairo_composite_rectangles_t *extents) +{ + unsigned int flags = 0; + + if (extents->clip->num_boxes > 1 || + extents->mask.width > extents->unbounded.width || + extents->mask.height > extents->unbounded.height) + { + flags |= NEED_CLIP_REGION; + } + + if (extents->clip->num_boxes > 1 || + extents->mask.width > extents->bounded.width || + extents->mask.height > extents->bounded.height) + { + flags |= FORCE_CLIP_REGION; + } + + if (! _cairo_clip_is_region (extents->clip)) + flags |= NEED_CLIP_SURFACE; + + return flags; +} + +static cairo_bool_t +need_unbounded_clip (cairo_composite_rectangles_t *extents) +{ + unsigned int flags = 0; + if (! extents->is_bounded) { + flags |= NEED_CLIP_REGION; + if (! _cairo_clip_is_region (extents->clip)) + flags |= NEED_CLIP_SURFACE; + } + if (extents->clip->path != NULL) + flags |= NEED_CLIP_SURFACE; + return flags; +} + +static cairo_status_t +clip_and_composite (const cairo_traps_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + draw_func_t draw_func, + draw_func_t mask_func, + void *draw_closure, + unsigned int need_clip) +{ + cairo_surface_t *dst = extents->surface; + cairo_operator_t op = extents->op; + cairo_pattern_t *source = &extents->source_pattern.base; + cairo_surface_t *src; + int src_x, src_y; + cairo_region_t *clip_region = NULL; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (reduce_alpha_op (extents)) { + op = CAIRO_OPERATOR_ADD; + source = NULL; + } + + if (op == CAIRO_OPERATOR_CLEAR) { + op = CAIRO_OPERATOR_DEST_OUT; + source = NULL; + } + + compositor->acquire (dst); + + if (need_clip & NEED_CLIP_REGION) { + const cairo_rectangle_int_t *limit; + + if ((need_clip & FORCE_CLIP_REGION) == 0) + limit = &extents->unbounded; + else + limit = &extents->destination; + + clip_region = _cairo_clip_get_region (extents->clip); + if (clip_region != NULL && + cairo_region_contains_rectangle (clip_region, + limit) == CAIRO_REGION_OVERLAP_IN) + clip_region = NULL; + + if (clip_region != NULL) { + status = compositor->set_clip_region (dst, clip_region); + if (unlikely (status)) { + compositor->release (dst); + return status; + } + } + } + + if (extents->bounded.width == 0 || extents->bounded.height == 0) + goto skip; + + src = compositor->pattern_to_surface (dst, source, FALSE, + &extents->bounded, + &extents->source_sample_area, + &src_x, &src_y); + if (unlikely (status = src->status)) + goto error; + + if (op == CAIRO_OPERATOR_SOURCE) { + status = clip_and_composite_source (compositor, dst, + draw_func, mask_func, draw_closure, + src, src_x, src_y, + extents); + } else { + if (need_clip & NEED_CLIP_SURFACE) { + if (extents->is_bounded) { + status = clip_and_composite_with_mask (compositor, extents, + draw_func, mask_func, + draw_closure, + op, src, src_x, src_y); + } else { + status = clip_and_composite_combine (compositor, extents, + draw_func, draw_closure, + op, src, src_x, src_y); + } + } else { + status = draw_func (compositor, + dst, draw_closure, + op, src, src_x, src_y, + 0, 0, + &extents->bounded, + extents->clip); + } + } + cairo_surface_destroy (src); + +skip: + if (status == CAIRO_STATUS_SUCCESS && ! extents->is_bounded) { + if (need_clip & NEED_CLIP_SURFACE) + status = fixup_unbounded_with_mask (compositor, extents); + else + status = fixup_unbounded (compositor, extents, NULL); + } + +error: + if (clip_region) + compositor->set_clip_region (dst, NULL); + + compositor->release (dst); + + return status; +} + +/* meta-ops */ + +typedef struct { + cairo_traps_t traps; + cairo_antialias_t antialias; +} composite_traps_info_t; + +static cairo_int_status_t +composite_traps (const cairo_traps_compositor_t *compositor, + cairo_surface_t *dst, + void *closure, + cairo_operator_t op, + cairo_surface_t *src, + int src_x, int src_y, + int dst_x, int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + composite_traps_info_t *info = closure; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + return compositor->composite_traps (dst, op, src, + src_x - dst_x, src_y - dst_y, + dst_x, dst_y, + extents, + info->antialias, &info->traps); +} + +typedef struct { + cairo_tristrip_t strip; + cairo_antialias_t antialias; +} composite_tristrip_info_t; + +static cairo_int_status_t +composite_tristrip (const cairo_traps_compositor_t *compositor, + cairo_surface_t *dst, + void *closure, + cairo_operator_t op, + cairo_surface_t *src, + int src_x, int src_y, + int dst_x, int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + composite_tristrip_info_t *info = closure; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + return compositor->composite_tristrip (dst, op, src, + src_x - dst_x, src_y - dst_y, + dst_x, dst_y, + extents, + info->antialias, &info->strip); +} + +static cairo_bool_t +is_recording_pattern (const cairo_pattern_t *pattern) +{ + cairo_surface_t *surface; + + if (pattern->type != CAIRO_PATTERN_TYPE_SURFACE) + return FALSE; + + surface = ((const cairo_surface_pattern_t *) pattern)->surface; + surface = _cairo_surface_get_source (surface, NULL); + return _cairo_surface_is_recording (surface); +} + +static cairo_surface_t * +recording_pattern_get_surface (const cairo_pattern_t *pattern) +{ + cairo_surface_t *surface; + + surface = ((const cairo_surface_pattern_t *) pattern)->surface; + return _cairo_surface_get_source (surface, NULL); +} + +static cairo_bool_t +recording_pattern_contains_sample (const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *sample) +{ + cairo_recording_surface_t *surface; + + if (! is_recording_pattern (pattern)) + return FALSE; + + if (pattern->extend == CAIRO_EXTEND_NONE) + return TRUE; + + surface = (cairo_recording_surface_t *) recording_pattern_get_surface (pattern); + if (surface->unbounded) + return TRUE; + + return _cairo_rectangle_contains_rectangle (&surface->extents, sample); +} + +static cairo_bool_t +op_reduces_to_source (cairo_composite_rectangles_t *extents) +{ + if (extents->op == CAIRO_OPERATOR_SOURCE) + return TRUE; + + if (extents->surface->is_clear) + return extents->op == CAIRO_OPERATOR_OVER || extents->op == CAIRO_OPERATOR_ADD; + + return FALSE; +} + +static cairo_status_t +composite_aligned_boxes (const cairo_traps_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_surface_t *dst = extents->surface; + cairo_operator_t op = extents->op; + cairo_bool_t need_clip_mask = ! _cairo_clip_is_region (extents->clip); + cairo_bool_t op_is_source; + cairo_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (need_clip_mask && + (! extents->is_bounded || extents->op == CAIRO_OPERATOR_SOURCE)) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + op_is_source = op_reduces_to_source (extents); + + /* Are we just copying a recording surface? */ + if (! need_clip_mask && op_is_source && + recording_pattern_contains_sample (&extents->source_pattern.base, + &extents->source_sample_area)) + { + cairo_clip_t *recording_clip; + const cairo_pattern_t *source = &extents->source_pattern.base; + const cairo_matrix_t *m; + cairo_matrix_t matrix; + + /* XXX could also do tiling repeat modes... */ + + /* first clear the area about to be overwritten */ + if (! dst->is_clear) { + status = compositor->acquire (dst); + if (unlikely (status)) + return status; + + status = compositor->fill_boxes (dst, + CAIRO_OPERATOR_CLEAR, + CAIRO_COLOR_TRANSPARENT, + boxes); + compositor->release (dst); + if (unlikely (status)) + return status; + } + + m = &source->matrix; + if (_cairo_surface_has_device_transform (dst)) { + cairo_matrix_multiply (&matrix, + &source->matrix, + &dst->device_transform); + m = &matrix; + } + + recording_clip = _cairo_clip_from_boxes (boxes); + status = _cairo_recording_surface_replay_with_clip (recording_pattern_get_surface (source), + m, dst, recording_clip); + _cairo_clip_destroy (recording_clip); + + return status; + } + + status = compositor->acquire (dst); + if (unlikely (status)) + return status; + + if (! need_clip_mask && + (op == CAIRO_OPERATOR_CLEAR || + extents->source_pattern.base.type == CAIRO_PATTERN_TYPE_SOLID)) + { + const cairo_color_t *color; + + if (op == CAIRO_OPERATOR_CLEAR) { + color = CAIRO_COLOR_TRANSPARENT; + } else { + color = &((cairo_solid_pattern_t *) &extents->source_pattern)->color; + if (op_is_source) + op = CAIRO_OPERATOR_SOURCE; + } + + status = compositor->fill_boxes (dst, op, color, boxes); + } + else + { + cairo_surface_t *src, *mask = NULL; + cairo_pattern_t *source = &extents->source_pattern.base; + int src_x, src_y; + int mask_x = 0, mask_y = 0; + + if (need_clip_mask) { + mask = traps_get_clip_surface (compositor, + extents, &extents->bounded); + if (unlikely (mask->status)) + return mask->status; + + mask_x = -extents->bounded.x; + mask_y = -extents->bounded.y; + + if (op == CAIRO_OPERATOR_CLEAR) { + source = NULL; + op = CAIRO_OPERATOR_DEST_OUT; + } + } else if (op_is_source) + op = CAIRO_OPERATOR_SOURCE; + + src = compositor->pattern_to_surface (dst, source, FALSE, + &extents->bounded, + &extents->source_sample_area, + &src_x, &src_y); + if (likely (src->status == CAIRO_STATUS_SUCCESS)) { + status = compositor->composite_boxes (dst, op, src, mask, + src_x, src_y, + mask_x, mask_y, + 0, 0, + boxes, &extents->bounded); + cairo_surface_destroy (src); + } else + status = src->status; + + cairo_surface_destroy (mask); + } + + if (status == CAIRO_STATUS_SUCCESS && ! extents->is_bounded) + status = fixup_unbounded (compositor, extents, boxes); + + compositor->release (dst); + + return status; +} + +static cairo_status_t +upload_boxes (const cairo_traps_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_surface_t *dst = extents->surface; + const cairo_pattern_t *source = &extents->source_pattern.base; + cairo_surface_t *src; + cairo_rectangle_int_t limit; + cairo_int_status_t status; + int tx, ty; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + src = _cairo_pattern_get_source((cairo_surface_pattern_t *)source, + &limit); + if (!(src->type == CAIRO_SURFACE_TYPE_IMAGE || src->type == dst->type)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (! _cairo_matrix_is_integer_translation (&source->matrix, &tx, &ty)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Check that the data is entirely within the image */ + if (extents->bounded.x + tx < limit.x || extents->bounded.y + ty < limit.y) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (extents->bounded.x + extents->bounded.width + tx > limit.x + limit.width || + extents->bounded.y + extents->bounded.height + ty > limit.y + limit.height) + return CAIRO_INT_STATUS_UNSUPPORTED; + + tx += limit.x; + ty += limit.y; + + if (src->type == CAIRO_SURFACE_TYPE_IMAGE) + status = compositor->draw_image_boxes (dst, + (cairo_image_surface_t *)src, + boxes, tx, ty); + else + status = compositor->copy_boxes (dst, src, boxes, &extents->bounded, + tx, ty); + + return status; +} + +static cairo_int_status_t +trim_extents_to_traps (cairo_composite_rectangles_t *extents, + cairo_traps_t *traps) +{ + cairo_box_t box; + + _cairo_traps_extents (traps, &box); + return _cairo_composite_rectangles_intersect_mask_extents (extents, &box); +} + +static cairo_int_status_t +trim_extents_to_tristrip (cairo_composite_rectangles_t *extents, + cairo_tristrip_t *strip) +{ + cairo_box_t box; + + _cairo_tristrip_extents (strip, &box); + return _cairo_composite_rectangles_intersect_mask_extents (extents, &box); +} + +static cairo_int_status_t +trim_extents_to_boxes (cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_box_t box; + + _cairo_boxes_extents (boxes, &box); + return _cairo_composite_rectangles_intersect_mask_extents (extents, &box); +} + +static cairo_int_status_t +boxes_for_traps (cairo_boxes_t *boxes, + cairo_traps_t *traps, + cairo_antialias_t antialias) +{ + int i, j; + + /* first check that the traps are rectilinear */ + if (antialias == CAIRO_ANTIALIAS_NONE) { + for (i = 0; i < traps->num_traps; i++) { + const cairo_trapezoid_t *t = &traps->traps[i]; + if (_cairo_fixed_integer_round_down (t->left.p1.x) != + _cairo_fixed_integer_round_down (t->left.p2.x) || + _cairo_fixed_integer_round_down (t->right.p1.x) != + _cairo_fixed_integer_round_down (t->right.p2.x)) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + } + } else { + for (i = 0; i < traps->num_traps; i++) { + const cairo_trapezoid_t *t = &traps->traps[i]; + if (t->left.p1.x != t->left.p2.x || t->right.p1.x != t->right.p2.x) + return CAIRO_INT_STATUS_UNSUPPORTED; + } + } + + _cairo_boxes_init (boxes); + + boxes->chunks.base = (cairo_box_t *) traps->traps; + boxes->chunks.size = traps->num_traps; + + if (antialias != CAIRO_ANTIALIAS_NONE) { + for (i = j = 0; i < traps->num_traps; i++) { + /* Note the traps and boxes alias so we need to take the local copies first. */ + cairo_fixed_t x1 = traps->traps[i].left.p1.x; + cairo_fixed_t x2 = traps->traps[i].right.p1.x; + cairo_fixed_t y1 = traps->traps[i].top; + cairo_fixed_t y2 = traps->traps[i].bottom; + + if (x1 == x2 || y1 == y2) + continue; + + boxes->chunks.base[j].p1.x = x1; + boxes->chunks.base[j].p1.y = y1; + boxes->chunks.base[j].p2.x = x2; + boxes->chunks.base[j].p2.y = y2; + j++; + + if (boxes->is_pixel_aligned) { + boxes->is_pixel_aligned = + _cairo_fixed_is_integer (x1) && _cairo_fixed_is_integer (y1) && + _cairo_fixed_is_integer (x2) && _cairo_fixed_is_integer (y2); + } + } + } else { + boxes->is_pixel_aligned = TRUE; + + for (i = j = 0; i < traps->num_traps; i++) { + /* Note the traps and boxes alias so we need to take the local copies first. */ + cairo_fixed_t x1 = traps->traps[i].left.p1.x; + cairo_fixed_t x2 = traps->traps[i].right.p1.x; + cairo_fixed_t y1 = traps->traps[i].top; + cairo_fixed_t y2 = traps->traps[i].bottom; + + /* round down here to match Pixman's behavior when using traps. */ + boxes->chunks.base[j].p1.x = _cairo_fixed_round_down (x1); + boxes->chunks.base[j].p1.y = _cairo_fixed_round_down (y1); + boxes->chunks.base[j].p2.x = _cairo_fixed_round_down (x2); + boxes->chunks.base[j].p2.y = _cairo_fixed_round_down (y2); + j += (boxes->chunks.base[j].p1.x != boxes->chunks.base[j].p2.x && + boxes->chunks.base[j].p1.y != boxes->chunks.base[j].p2.y); + } + } + boxes->chunks.count = j; + boxes->num_boxes = j; + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_status_t +clip_and_composite_boxes (const cairo_traps_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes); + +static cairo_status_t +clip_and_composite_polygon (const cairo_traps_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_polygon_t *polygon, + cairo_antialias_t antialias, + cairo_fill_rule_t fill_rule, + cairo_bool_t curvy) +{ + composite_traps_info_t traps; + cairo_surface_t *dst = extents->surface; + cairo_bool_t clip_surface = ! _cairo_clip_is_region (extents->clip); + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (polygon->num_edges == 0) { + status = CAIRO_INT_STATUS_SUCCESS; + + if (! extents->is_bounded) { + cairo_region_t *clip_region = _cairo_clip_get_region (extents->clip); + + if (clip_region && + cairo_region_contains_rectangle (clip_region, + &extents->unbounded) == CAIRO_REGION_OVERLAP_IN) + clip_region = NULL; + + if (clip_region != NULL) { + status = compositor->set_clip_region (dst, clip_region); + if (unlikely (status)) + return status; + } + + if (clip_surface) + status = fixup_unbounded_with_mask (compositor, extents); + else + status = fixup_unbounded (compositor, extents, NULL); + + if (clip_region != NULL) + compositor->set_clip_region (dst, NULL); + } + + return status; + } + + if (extents->clip->path != NULL && extents->is_bounded) { + cairo_polygon_t clipper; + cairo_fill_rule_t clipper_fill_rule; + cairo_antialias_t clipper_antialias; + + status = _cairo_clip_get_polygon (extents->clip, + &clipper, + &clipper_fill_rule, + &clipper_antialias); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + if (clipper_antialias == antialias) { + status = _cairo_polygon_intersect (polygon, fill_rule, + &clipper, clipper_fill_rule); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + cairo_clip_t * clip = _cairo_clip_copy_region (extents->clip); + _cairo_clip_destroy (extents->clip); + extents->clip = clip; + + fill_rule = CAIRO_FILL_RULE_WINDING; + } + _cairo_polygon_fini (&clipper); + } + } + } + + if (antialias == CAIRO_ANTIALIAS_NONE && curvy) { + cairo_boxes_t boxes; + + _cairo_boxes_init (&boxes); + status = _cairo_rasterise_polygon_to_boxes (polygon, fill_rule, &boxes); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + assert (boxes.is_pixel_aligned); + status = clip_and_composite_boxes (compositor, extents, &boxes); + } + _cairo_boxes_fini (&boxes); + if ((status != CAIRO_INT_STATUS_UNSUPPORTED)) + return status; + } + + _cairo_traps_init (&traps.traps); + + if (antialias == CAIRO_ANTIALIAS_NONE && curvy) { + status = _cairo_rasterise_polygon_to_traps (polygon, fill_rule, antialias, &traps.traps); + } else { + status = _cairo_bentley_ottmann_tessellate_polygon (&traps.traps, polygon, fill_rule); + } + if (unlikely (status)) + goto CLEANUP_TRAPS; + + status = trim_extents_to_traps (extents, &traps.traps); + if (unlikely (status)) + goto CLEANUP_TRAPS; + + /* Use a fast path if the trapezoids consist of a set of boxes. */ + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (1) { + cairo_boxes_t boxes; + + status = boxes_for_traps (&boxes, &traps.traps, antialias); + if (status == CAIRO_INT_STATUS_SUCCESS) { + status = clip_and_composite_boxes (compositor, extents, &boxes); + /* XXX need to reconstruct the traps! */ + assert (status != CAIRO_INT_STATUS_UNSUPPORTED); + } + } + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + /* Otherwise render the trapezoids to a mask and composite in the usual + * fashion. + */ + unsigned int flags = 0; + + /* For unbounded operations, the X11 server will estimate the + * affected rectangle and apply the operation to that. However, + * there are cases where this is an overestimate (e.g. the + * clip-fill-{eo,nz}-unbounded test). + * + * The clip will trim that overestimate to our expectations. + */ + if (! extents->is_bounded) + flags |= FORCE_CLIP_REGION; + + traps.antialias = antialias; + status = clip_and_composite (compositor, extents, + composite_traps, NULL, &traps, + need_unbounded_clip (extents) | flags); + } + +CLEANUP_TRAPS: + _cairo_traps_fini (&traps.traps); + + return status; +} + +struct composite_opacity_info { + const cairo_traps_compositor_t *compositor; + uint8_t op; + cairo_surface_t *dst; + cairo_surface_t *src; + int src_x, src_y; + double opacity; +}; + +static void composite_opacity(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage) +{ + struct composite_opacity_info *info = closure; + const cairo_traps_compositor_t *compositor = info->compositor; + cairo_surface_t *mask; + int mask_x, mask_y; + cairo_color_t color; + cairo_solid_pattern_t solid; + + _cairo_color_init_rgba (&color, 0, 0, 0, info->opacity * coverage); + _cairo_pattern_init_solid (&solid, &color); + mask = compositor->pattern_to_surface (info->dst, &solid.base, TRUE, + &_cairo_unbounded_rectangle, + &_cairo_unbounded_rectangle, + &mask_x, &mask_y); + if (likely (mask->status == CAIRO_STATUS_SUCCESS)) { + if (info->src) { + compositor->composite (info->dst, info->op, info->src, mask, + x + info->src_x, y + info->src_y, + mask_x, mask_y, + x, y, + w, h); + } else { + compositor->composite (info->dst, info->op, mask, NULL, + mask_x, mask_y, + 0, 0, + x, y, + w, h); + } + } + + cairo_surface_destroy (mask); +} + + +static cairo_int_status_t +composite_opacity_boxes (const cairo_traps_compositor_t *compositor, + cairo_surface_t *dst, + void *closure, + cairo_operator_t op, + cairo_surface_t *src, + int src_x, + int src_y, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + const cairo_solid_pattern_t *mask = closure; + struct composite_opacity_info info; + int i; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + info.compositor = compositor; + info.op = op; + info.dst = dst; + + info.src = src; + info.src_x = src_x; + info.src_y = src_y; + + info.opacity = mask->color.alpha / (double) 0xffff; + + /* XXX for lots of boxes create a clip region for the fully opaque areas */ + for (i = 0; i < clip->num_boxes; i++) + do_unaligned_box(composite_opacity, &info, + &clip->boxes[i], dst_x, dst_y); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +composite_boxes (const cairo_traps_compositor_t *compositor, + cairo_surface_t *dst, + void *closure, + cairo_operator_t op, + cairo_surface_t *src, + int src_x, + int src_y, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + cairo_traps_t traps; + cairo_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + status = _cairo_traps_init_boxes (&traps, closure); + if (unlikely (status)) + return status; + + status = compositor->composite_traps (dst, op, src, + src_x - dst_x, src_y - dst_y, + dst_x, dst_y, + extents, + CAIRO_ANTIALIAS_DEFAULT, &traps); + _cairo_traps_fini (&traps); + + return status; +} + +static cairo_status_t +clip_and_composite_boxes (const cairo_traps_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (boxes->num_boxes == 0 && extents->is_bounded) + return CAIRO_STATUS_SUCCESS; + + status = trim_extents_to_boxes (extents, boxes); + if (unlikely (status)) + return status; + + if (boxes->is_pixel_aligned && extents->clip->path == NULL && + extents->source_pattern.base.type == CAIRO_PATTERN_TYPE_SURFACE && + (op_reduces_to_source (extents) || + (extents->op == CAIRO_OPERATOR_OVER && + (extents->source_pattern.surface.surface->content & CAIRO_CONTENT_ALPHA) == 0))) + { + status = upload_boxes (compositor, extents, boxes); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + } + + /* Can we reduce drawing through a clip-mask to simply drawing the clip? */ + if (extents->clip->path != NULL && extents->is_bounded) { + cairo_polygon_t polygon; + cairo_fill_rule_t fill_rule; + cairo_antialias_t antialias; + cairo_clip_t *clip; + + clip = _cairo_clip_copy (extents->clip); + clip = _cairo_clip_intersect_boxes (clip, boxes); + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_INT_STATUS_NOTHING_TO_DO; + + status = _cairo_clip_get_polygon (clip, &polygon, + &fill_rule, &antialias); + _cairo_clip_path_destroy (clip->path); + clip->path = NULL; + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + cairo_clip_t *saved_clip = extents->clip; + extents->clip = clip; + + status = clip_and_composite_polygon (compositor, extents, &polygon, + antialias, fill_rule, FALSE); + + clip = extents->clip; + extents->clip = saved_clip; + + _cairo_polygon_fini (&polygon); + } + _cairo_clip_destroy (clip); + + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + } + + /* Use a fast path if the boxes are pixel aligned (or nearly aligned!) */ + if (boxes->is_pixel_aligned) { + status = composite_aligned_boxes (compositor, extents, boxes); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + } + + return clip_and_composite (compositor, extents, + composite_boxes, NULL, boxes, + need_unbounded_clip (extents)); +} + +static cairo_int_status_t +composite_traps_as_boxes (const cairo_traps_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + composite_traps_info_t *info) +{ + cairo_boxes_t boxes; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (! _cairo_traps_to_boxes (&info->traps, info->antialias, &boxes)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + return clip_and_composite_boxes (compositor, extents, &boxes); +} + +static cairo_int_status_t +clip_and_composite_traps (const cairo_traps_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + composite_traps_info_t *info, + unsigned flags) +{ + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + status = trim_extents_to_traps (extents, &info->traps); + if (unlikely (status != CAIRO_INT_STATUS_SUCCESS)) + return status; + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if ((flags & FORCE_CLIP_REGION) == 0) + status = composite_traps_as_boxes (compositor, extents, info); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + /* For unbounded operations, the X11 server will estimate the + * affected rectangle and apply the operation to that. However, + * there are cases where this is an overestimate (e.g. the + * clip-fill-{eo,nz}-unbounded test). + * + * The clip will trim that overestimate to our expectations. + */ + if (! extents->is_bounded) + flags |= FORCE_CLIP_REGION; + + status = clip_and_composite (compositor, extents, + composite_traps, NULL, info, + need_unbounded_clip (extents) | flags); + } + + return status; +} + +static cairo_int_status_t +clip_and_composite_tristrip (const cairo_traps_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + composite_tristrip_info_t *info) +{ + cairo_int_status_t status; + unsigned int flags = 0; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + status = trim_extents_to_tristrip (extents, &info->strip); + if (unlikely (status != CAIRO_INT_STATUS_SUCCESS)) + return status; + + if (! extents->is_bounded) + flags |= FORCE_CLIP_REGION; + + status = clip_and_composite (compositor, extents, + composite_tristrip, NULL, info, + need_unbounded_clip (extents) | flags); + + return status; +} + +struct composite_mask { + cairo_surface_t *mask; + int mask_x, mask_y; +}; + +static cairo_int_status_t +composite_mask (const cairo_traps_compositor_t *compositor, + cairo_surface_t *dst, + void *closure, + cairo_operator_t op, + cairo_surface_t *src, + int src_x, + int src_y, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + struct composite_mask *data = closure; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (src != NULL) { + compositor->composite (dst, op, src, data->mask, + extents->x + src_x, extents->y + src_y, + extents->x + data->mask_x, extents->y + data->mask_y, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + } else { + compositor->composite (dst, op, data->mask, NULL, + extents->x + data->mask_x, extents->y + data->mask_y, + 0, 0, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + } + + return CAIRO_STATUS_SUCCESS; +} + +struct composite_box_info { + const cairo_traps_compositor_t *compositor; + cairo_surface_t *dst; + cairo_surface_t *src; + int src_x, src_y; + uint8_t op; +}; + +static void composite_box(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage) +{ + struct composite_box_info *info = closure; + const cairo_traps_compositor_t *compositor = info->compositor; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (! CAIRO_ALPHA_SHORT_IS_OPAQUE (coverage)) { + cairo_surface_t *mask; + cairo_color_t color; + cairo_solid_pattern_t solid; + int mask_x, mask_y; + + _cairo_color_init_rgba (&color, 0, 0, 0, coverage / (double)0xffff); + _cairo_pattern_init_solid (&solid, &color); + + mask = compositor->pattern_to_surface (info->dst, &solid.base, FALSE, + &_cairo_unbounded_rectangle, + &_cairo_unbounded_rectangle, + &mask_x, &mask_y); + + if (likely (mask->status == CAIRO_STATUS_SUCCESS)) { + compositor->composite (info->dst, info->op, info->src, mask, + x + info->src_x, y + info->src_y, + mask_x, mask_y, + x, y, + w, h); + } + + cairo_surface_destroy (mask); + } else { + compositor->composite (info->dst, info->op, info->src, NULL, + x + info->src_x, y + info->src_y, + 0, 0, + x, y, + w, h); + } +} + +static cairo_int_status_t +composite_mask_clip_boxes (const cairo_traps_compositor_t *compositor, + cairo_surface_t *dst, + void *closure, + cairo_operator_t op, + cairo_surface_t *src, + int src_x, + int src_y, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + struct composite_mask *data = closure; + struct composite_box_info info; + int i; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + info.compositor = compositor; + info.op = CAIRO_OPERATOR_SOURCE; + info.dst = dst; + info.src = data->mask; + info.src_x = data->mask_x; + info.src_y = data->mask_y; + + info.src_x += dst_x; + info.src_y += dst_y; + + for (i = 0; i < clip->num_boxes; i++) + do_unaligned_box(composite_box, &info, &clip->boxes[i], dst_x, dst_y); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +composite_mask_clip (const cairo_traps_compositor_t *compositor, + cairo_surface_t *dst, + void *closure, + cairo_operator_t op, + cairo_surface_t *src, + int src_x, + int src_y, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + struct composite_mask *data = closure; + cairo_polygon_t polygon; + cairo_fill_rule_t fill_rule; + composite_traps_info_t info; + cairo_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + status = _cairo_clip_get_polygon (clip, &polygon, + &fill_rule, &info.antialias); + if (unlikely (status)) + return status; + + _cairo_traps_init (&info.traps); + status = _cairo_bentley_ottmann_tessellate_polygon (&info.traps, + &polygon, + fill_rule); + _cairo_polygon_fini (&polygon); + if (unlikely (status)) + return status; + + status = composite_traps (compositor, dst, &info, + CAIRO_OPERATOR_SOURCE, + data->mask, + data->mask_x + dst_x, data->mask_y + dst_y, + dst_x, dst_y, + extents, NULL); + _cairo_traps_fini (&info.traps); + + return status; +} + +/* high-level compositor interface */ + +static cairo_int_status_t +_cairo_traps_compositor_paint (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents) +{ + cairo_traps_compositor_t *compositor = (cairo_traps_compositor_t*)_compositor; + cairo_boxes_t boxes; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + status = compositor->check_composite (extents); + if (unlikely (status)) + return status; + + _cairo_clip_steal_boxes (extents->clip, &boxes); + status = clip_and_composite_boxes (compositor, extents, &boxes); + _cairo_clip_unsteal_boxes (extents->clip, &boxes); + + return status; +} + +static cairo_int_status_t +_cairo_traps_compositor_mask (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents) +{ + const cairo_traps_compositor_t *compositor = (cairo_traps_compositor_t*)_compositor; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + status = compositor->check_composite (extents); + if (unlikely (status)) + return status; + + if (extents->mask_pattern.base.type == CAIRO_PATTERN_TYPE_SOLID && + extents->clip->path == NULL) { + status = clip_and_composite (compositor, extents, + composite_opacity_boxes, + composite_opacity_boxes, + &extents->mask_pattern, + need_unbounded_clip (extents)); + } else { + struct composite_mask data; + + data.mask = compositor->pattern_to_surface (extents->surface, + &extents->mask_pattern.base, + TRUE, + &extents->bounded, + &extents->mask_sample_area, + &data.mask_x, + &data.mask_y); + if (unlikely (data.mask->status)) + return data.mask->status; + + status = clip_and_composite (compositor, extents, + composite_mask, + extents->clip->path ? composite_mask_clip : composite_mask_clip_boxes, + &data, need_bounded_clip (extents)); + + cairo_surface_destroy (data.mask); + } + + return status; +} + +static cairo_int_status_t +_cairo_traps_compositor_stroke (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias) +{ + const cairo_traps_compositor_t *compositor = (cairo_traps_compositor_t *)_compositor; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + status = compositor->check_composite (extents); + if (unlikely (status)) + return status; + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (_cairo_path_fixed_stroke_is_rectilinear (path)) { + cairo_boxes_t boxes; + + _cairo_boxes_init_with_clip (&boxes, extents->clip); + status = _cairo_path_fixed_stroke_rectilinear_to_boxes (path, + style, + ctm, + antialias, + &boxes); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = clip_and_composite_boxes (compositor, extents, &boxes); + _cairo_boxes_fini (&boxes); + } + + if (status == CAIRO_INT_STATUS_UNSUPPORTED && 0 && + _cairo_clip_is_region (extents->clip)) /* XXX */ + { + composite_tristrip_info_t info; + + info.antialias = antialias; + _cairo_tristrip_init_with_clip (&info.strip, extents->clip); + status = _cairo_path_fixed_stroke_to_tristrip (path, style, + ctm, ctm_inverse, + tolerance, + &info.strip); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = clip_and_composite_tristrip (compositor, extents, &info); + _cairo_tristrip_fini (&info.strip); + } + + if (status == CAIRO_INT_STATUS_UNSUPPORTED && + path->has_curve_to && antialias == CAIRO_ANTIALIAS_NONE) { + cairo_polygon_t polygon; + + _cairo_polygon_init_with_clip (&polygon, extents->clip); + status = _cairo_path_fixed_stroke_to_polygon (path, style, + ctm, ctm_inverse, + tolerance, + &polygon); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = clip_and_composite_polygon (compositor, + extents, &polygon, + CAIRO_ANTIALIAS_NONE, + CAIRO_FILL_RULE_WINDING, + TRUE); + _cairo_polygon_fini (&polygon); + } + + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + cairo_int_status_t (*func) (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_traps_t *traps); + composite_traps_info_t info; + unsigned flags; + + if (antialias == CAIRO_ANTIALIAS_BEST || antialias == CAIRO_ANTIALIAS_GOOD) { + func = _cairo_path_fixed_stroke_polygon_to_traps; + flags = 0; + } else { + func = _cairo_path_fixed_stroke_to_traps; + flags = need_bounded_clip (extents) & ~NEED_CLIP_SURFACE; + } + + info.antialias = antialias; + _cairo_traps_init_with_clip (&info.traps, extents->clip); + status = func (path, style, ctm, ctm_inverse, tolerance, &info.traps); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = clip_and_composite_traps (compositor, extents, &info, flags); + _cairo_traps_fini (&info.traps); + } + + return status; +} + +static cairo_int_status_t +_cairo_traps_compositor_fill (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + const cairo_traps_compositor_t *compositor = (cairo_traps_compositor_t *)_compositor; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + status = compositor->check_composite (extents); + if (unlikely (status)) + return status; + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (_cairo_path_fixed_fill_is_rectilinear (path)) { + cairo_boxes_t boxes; + + _cairo_boxes_init_with_clip (&boxes, extents->clip); + status = _cairo_path_fixed_fill_rectilinear_to_boxes (path, + fill_rule, + antialias, + &boxes); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = clip_and_composite_boxes (compositor, extents, &boxes); + _cairo_boxes_fini (&boxes); + } + + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + cairo_polygon_t polygon; + +#if 0 + if (extents->mask.width > extents->unbounded.width || + extents->mask.height > extents->unbounded.height) + { + cairo_box_t limits; + _cairo_box_from_rectangle (&limits, &extents->unbounded); + _cairo_polygon_init (&polygon, &limits, 1); + } + else + { + _cairo_polygon_init (&polygon, NULL, 0); + } + + status = _cairo_path_fixed_fill_to_polygon (path, tolerance, &polygon); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + status = _cairo_polygon_intersect_with_boxes (&polygon, &fill_rule, + extents->clip->boxes, + extents->clip->num_boxes); + } +#else + _cairo_polygon_init_with_clip (&polygon, extents->clip); + status = _cairo_path_fixed_fill_to_polygon (path, tolerance, &polygon); +#endif + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + status = clip_and_composite_polygon (compositor, extents, &polygon, + antialias, fill_rule, path->has_curve_to); + } + _cairo_polygon_fini (&polygon); + } + + return status; +} + +static cairo_int_status_t +composite_glyphs (const cairo_traps_compositor_t *compositor, + cairo_surface_t *dst, + void *closure, + cairo_operator_t op, + cairo_surface_t *src, + int src_x, int src_y, + int dst_x, int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + cairo_composite_glyphs_info_t *info = closure; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (op == CAIRO_OPERATOR_ADD && (dst->content & CAIRO_CONTENT_COLOR) == 0) + info->use_mask = 0; + + return compositor->composite_glyphs (dst, op, src, + src_x, src_y, + dst_x, dst_y, + info); +} + +static cairo_int_status_t +_cairo_traps_compositor_glyphs (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_bool_t overlap) +{ + const cairo_traps_compositor_t *compositor = (cairo_traps_compositor_t *)_compositor; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + status = compositor->check_composite (extents); + if (unlikely (status)) + return status; + + _cairo_scaled_font_freeze_cache (scaled_font); + status = compositor->check_composite_glyphs (extents, + scaled_font, glyphs, + &num_glyphs); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + cairo_composite_glyphs_info_t info; + + info.font = scaled_font; + info.glyphs = glyphs; + info.num_glyphs = num_glyphs; + info.use_mask = overlap || ! extents->is_bounded; + info.extents = extents->bounded; + + status = clip_and_composite (compositor, extents, + composite_glyphs, NULL, &info, + need_bounded_clip (extents) | FORCE_CLIP_REGION); + } + _cairo_scaled_font_thaw_cache (scaled_font); + + return status; +} + +void +_cairo_traps_compositor_init (cairo_traps_compositor_t *compositor, + const cairo_compositor_t *delegate) +{ + compositor->base.delegate = delegate; + + compositor->base.paint = _cairo_traps_compositor_paint; + compositor->base.mask = _cairo_traps_compositor_mask; + compositor->base.fill = _cairo_traps_compositor_fill; + compositor->base.stroke = _cairo_traps_compositor_stroke; + compositor->base.glyphs = _cairo_traps_compositor_glyphs; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-traps-private.h b/local/recipes/libs/cairo/source/src/cairo-traps-private.h new file mode 100644 index 0000000000..dcaf40d186 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-traps-private.h @@ -0,0 +1,143 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_TRAPS_PRIVATE_H +#define CAIRO_TRAPS_PRIVATE_H + +#include "cairo-compiler-private.h" +#include "cairo-error-private.h" +#include "cairo-types-private.h" + +CAIRO_BEGIN_DECLS + +struct _cairo_traps { + cairo_status_t status; + + cairo_box_t bounds; + const cairo_box_t *limits; + int num_limits; + + unsigned int maybe_region : 1; /* hint: 0 implies that it cannot be */ + unsigned int has_intersections : 1; + unsigned int is_rectilinear : 1; + unsigned int is_rectangular : 1; + + int num_traps; + int traps_size; + cairo_trapezoid_t *traps; + cairo_trapezoid_t traps_embedded[16]; +}; + +/* cairo-traps.c */ +cairo_private void +_cairo_traps_init (cairo_traps_t *traps); + +cairo_private void +_cairo_traps_init_with_clip (cairo_traps_t *traps, + const cairo_clip_t *clip); + +cairo_private void +_cairo_traps_limit (cairo_traps_t *traps, + const cairo_box_t *boxes, + int num_boxes); + +cairo_private cairo_status_t +_cairo_traps_init_boxes (cairo_traps_t *traps, + const cairo_boxes_t *boxes); + +cairo_private void +_cairo_traps_clear (cairo_traps_t *traps); + +cairo_private void +_cairo_traps_fini (cairo_traps_t *traps); + +#define _cairo_traps_status(T) (T)->status + +cairo_private void +_cairo_traps_translate (cairo_traps_t *traps, int x, int y); + +cairo_private void +_cairo_traps_tessellate_triangle_with_edges (cairo_traps_t *traps, + const cairo_point_t t[3], + const cairo_point_t edges[4]); + +cairo_private void +_cairo_traps_tessellate_convex_quad (cairo_traps_t *traps, + const cairo_point_t q[4]); + +cairo_private cairo_status_t +_cairo_traps_tessellate_rectangle (cairo_traps_t *traps, + const cairo_point_t *top_left, + const cairo_point_t *bottom_right); + +cairo_private void +_cairo_traps_add_trap (cairo_traps_t *traps, + cairo_fixed_t top, cairo_fixed_t bottom, + const cairo_line_t *left, + const cairo_line_t *right); + +cairo_private int +_cairo_traps_contain (const cairo_traps_t *traps, + double x, double y); + +cairo_private void +_cairo_traps_extents (const cairo_traps_t *traps, + cairo_box_t *extents); + +cairo_private cairo_int_status_t +_cairo_traps_extract_region (cairo_traps_t *traps, + cairo_antialias_t antialias, + cairo_region_t **region); + +cairo_private cairo_bool_t +_cairo_traps_to_boxes (cairo_traps_t *traps, + cairo_antialias_t antialias, + cairo_boxes_t *boxes); + +cairo_private cairo_status_t +_cairo_traps_path (const cairo_traps_t *traps, + cairo_path_fixed_t *path); + +cairo_private cairo_int_status_t +_cairo_rasterise_polygon_to_traps (cairo_polygon_t *polygon, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias, + cairo_traps_t *traps); + +CAIRO_END_DECLS + +#endif /* CAIRO_TRAPS_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-traps.c b/local/recipes/libs/cairo/source/src/cairo-traps.c new file mode 100644 index 0000000000..b59b96d439 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-traps.c @@ -0,0 +1,1123 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* + * Copyright © 2002 Keith Packard + * Copyright © 2007 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Keith Packard + * + * Contributor(s): + * Keith R. Packard + * Carl D. Worth + * + * 2002-07-15: Converted from XRenderCompositeDoublePoly to #cairo_trap_t. Carl D. Worth + */ + +#include "cairoint.h" + +#include "cairo-box-inline.h" +#include "cairo-boxes-private.h" +#include "cairo-error-private.h" +#include "cairo-line-private.h" +#include "cairo-region-private.h" +#include "cairo-slope-private.h" +#include "cairo-traps-private.h" +#include "cairo-spans-private.h" + +/* private functions */ + +void +_cairo_traps_init (cairo_traps_t *traps) +{ + VG (VALGRIND_MAKE_MEM_UNDEFINED (traps, sizeof (cairo_traps_t))); + + traps->status = CAIRO_STATUS_SUCCESS; + + traps->maybe_region = 1; + traps->is_rectilinear = 0; + traps->is_rectangular = 0; + + traps->num_traps = 0; + + traps->traps_size = ARRAY_LENGTH (traps->traps_embedded); + traps->traps = traps->traps_embedded; + + traps->num_limits = 0; + traps->has_intersections = FALSE; +} + +void +_cairo_traps_limit (cairo_traps_t *traps, + const cairo_box_t *limits, + int num_limits) +{ + int i; + + traps->limits = limits; + traps->num_limits = num_limits; + + traps->bounds = limits[0]; + for (i = 1; i < num_limits; i++) + _cairo_box_add_box (&traps->bounds, &limits[i]); +} + +void +_cairo_traps_init_with_clip (cairo_traps_t *traps, + const cairo_clip_t *clip) +{ + _cairo_traps_init (traps); + if (clip) + _cairo_traps_limit (traps, clip->boxes, clip->num_boxes); +} + +void +_cairo_traps_clear (cairo_traps_t *traps) +{ + traps->status = CAIRO_STATUS_SUCCESS; + + traps->maybe_region = 1; + traps->is_rectilinear = 0; + traps->is_rectangular = 0; + + traps->num_traps = 0; + traps->has_intersections = FALSE; +} + +void +_cairo_traps_fini (cairo_traps_t *traps) +{ + if (traps->traps != traps->traps_embedded) + free (traps->traps); + + VG (VALGRIND_MAKE_MEM_UNDEFINED (traps, sizeof (cairo_traps_t))); +} + +/* make room for at least one more trap */ +static cairo_bool_t +_cairo_traps_grow (cairo_traps_t *traps) +{ + cairo_trapezoid_t *new_traps; + int new_size = 4 * traps->traps_size; + + if (CAIRO_INJECT_FAULT ()) { + traps->status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + return FALSE; + } + + if (traps->traps == traps->traps_embedded) { + new_traps = _cairo_malloc_ab (new_size, sizeof (cairo_trapezoid_t)); + if (new_traps != NULL) + memcpy (new_traps, traps->traps, sizeof (traps->traps_embedded)); + } else { + new_traps = _cairo_realloc_ab (traps->traps, + new_size, sizeof (cairo_trapezoid_t)); + } + + if (unlikely (new_traps == NULL)) { + traps->status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + return FALSE; + } + + traps->traps = new_traps; + traps->traps_size = new_size; + return TRUE; +} + +void +_cairo_traps_add_trap (cairo_traps_t *traps, + cairo_fixed_t top, cairo_fixed_t bottom, + const cairo_line_t *left, + const cairo_line_t *right) +{ + cairo_trapezoid_t *trap; + + assert (left->p1.y != left->p2.y); + assert (right->p1.y != right->p2.y); + assert (bottom > top); + + if (unlikely (traps->num_traps == traps->traps_size)) { + if (unlikely (! _cairo_traps_grow (traps))) + return; + } + + trap = &traps->traps[traps->num_traps++]; + trap->top = top; + trap->bottom = bottom; + trap->left = *left; + trap->right = *right; +} + +static void +_cairo_traps_add_clipped_trap (cairo_traps_t *traps, + cairo_fixed_t _top, cairo_fixed_t _bottom, + const cairo_line_t *_left, + const cairo_line_t *_right) +{ + /* Note: With the goofy trapezoid specification, (where an + * arbitrary two points on the lines can specified for the left + * and right edges), these limit checks would not work in + * general. For example, one can imagine a trapezoid entirely + * within the limits, but with two points used to specify the left + * edge entirely to the right of the limits. Fortunately, for our + * purposes, cairo will never generate such a crazy + * trapezoid. Instead, cairo always uses for its points the + * extreme positions of the edge that are visible on at least some + * trapezoid. With this constraint, it's impossible for both + * points to be outside the limits while the relevant edge is + * entirely inside the limits. + */ + if (traps->num_limits) { + const cairo_box_t *b = &traps->bounds; + cairo_fixed_t top = _top, bottom = _bottom; + cairo_line_t left = *_left, right = *_right; + + /* Trivially reject if trapezoid is entirely to the right or + * to the left of the limits. */ + if (left.p1.x >= b->p2.x && left.p2.x >= b->p2.x) + return; + + if (right.p1.x <= b->p1.x && right.p2.x <= b->p1.x) + return; + + /* And reject if the trapezoid is entirely above or below */ + if (top >= b->p2.y || bottom <= b->p1.y) + return; + + /* Otherwise, clip the trapezoid to the limits. We only clip + * where an edge is entirely outside the limits. If we wanted + * to be more clever, we could handle cases where a trapezoid + * edge intersects the edge of the limits, but that would + * require slicing this trapezoid into multiple trapezoids, + * and I'm not sure the effort would be worth it. */ + if (top < b->p1.y) + top = b->p1.y; + + if (bottom > b->p2.y) + bottom = b->p2.y; + + if (left.p1.x <= b->p1.x && left.p2.x <= b->p1.x) + left.p1.x = left.p2.x = b->p1.x; + + if (right.p1.x >= b->p2.x && right.p2.x >= b->p2.x) + right.p1.x = right.p2.x = b->p2.x; + + /* Trivial discards for empty trapezoids that are likely to + * be produced by our tessellators (most notably convex_quad + * when given a simple rectangle). + */ + if (top >= bottom) + return; + + /* cheap colinearity check */ + if (right.p1.x <= left.p1.x && right.p1.y == left.p1.y && + right.p2.x <= left.p2.x && right.p2.y == left.p2.y) + return; + + _cairo_traps_add_trap (traps, top, bottom, &left, &right); + } else + _cairo_traps_add_trap (traps, _top, _bottom, _left, _right); +} + +static int +_compare_point_fixed_by_y (const void *av, const void *bv) +{ + const cairo_point_t *a = av, *b = bv; + int ret = a->y - b->y; + if (ret == 0) + ret = a->x - b->x; + return ret; +} + +void +_cairo_traps_tessellate_convex_quad (cairo_traps_t *traps, + const cairo_point_t q[4]) +{ + int a, b, c, d; + int i; + cairo_slope_t ab, ad; + cairo_bool_t b_left_of_d; + cairo_line_t left; + cairo_line_t right; + + /* Choose a as a point with minimal y */ + a = 0; + for (i = 1; i < 4; i++) + if (_compare_point_fixed_by_y (&q[i], &q[a]) < 0) + a = i; + + /* b and d are adjacent to a, while c is opposite */ + b = (a + 1) % 4; + c = (a + 2) % 4; + d = (a + 3) % 4; + + /* Choose between b and d so that b.y is less than d.y */ + if (_compare_point_fixed_by_y (&q[d], &q[b]) < 0) { + b = (a + 3) % 4; + d = (a + 1) % 4; + } + + /* Without freedom left to choose anything else, we have four + * cases to tessellate. + * + * First, we have to determine the Y-axis sort of the four + * vertices, (either abcd or abdc). After that we need to determine + * which edges will be "left" and which will be "right" in the + * resulting trapezoids. This can be determined by computing a + * slope comparison of ab and ad to determine if b is left of d or + * not. + * + * Note that "left of" here is in the sense of which edges should + * be the left vs. right edges of the trapezoid. In particular, b + * left of d does *not* mean that b.x is less than d.x. + * + * This should hopefully be made clear in the lame ASCII art + * below. Since the same slope comparison is used in all cases, we + * compute it before testing for the Y-value sort. */ + + /* Note: If a == b then the ab slope doesn't give us any + * information. In that case, we can replace it with the ac (or + * equivalenly the bc) slope which gives us exactly the same + * information we need. At worst the names of the identifiers ab + * and b_left_of_d are inaccurate in this case, (would be ac, and + * c_left_of_d). */ + if (q[a].x == q[b].x && q[a].y == q[b].y) + _cairo_slope_init (&ab, &q[a], &q[c]); + else + _cairo_slope_init (&ab, &q[a], &q[b]); + + _cairo_slope_init (&ad, &q[a], &q[d]); + + b_left_of_d = _cairo_slope_compare (&ab, &ad) > 0; + + if (q[c].y <= q[d].y) { + if (b_left_of_d) { + /* Y-sort is abcd and b is left of d, (slope(ab) > slope (ad)) + * + * top bot left right + * _a a a + * / / /| |\ a.y b.y ab ad + * b / b | b \ + * / / | | \ \ b.y c.y bc ad + * c / c | c \ + * | / \| \ \ c.y d.y cd ad + * d d d + */ + left.p1 = q[a]; left.p2 = q[b]; + right.p1 = q[a]; right.p2 = q[d]; + _cairo_traps_add_clipped_trap (traps, q[a].y, q[b].y, &left, &right); + left.p1 = q[b]; left.p2 = q[c]; + _cairo_traps_add_clipped_trap (traps, q[b].y, q[c].y, &left, &right); + left.p1 = q[c]; left.p2 = q[d]; + _cairo_traps_add_clipped_trap (traps, q[c].y, q[d].y, &left, &right); + } else { + /* Y-sort is abcd and b is right of d, (slope(ab) <= slope (ad)) + * + * a a a_ + * /| |\ \ \ a.y b.y ad ab + * / b | b \ b + * / / | | \ \ b.y c.y ad bc + * / c | c \ c + * / / |/ \ | c.y d.y ad cd + * d d d + */ + left.p1 = q[a]; left.p2 = q[d]; + right.p1 = q[a]; right.p2 = q[b]; + _cairo_traps_add_clipped_trap (traps, q[a].y, q[b].y, &left, &right); + right.p1 = q[b]; right.p2 = q[c]; + _cairo_traps_add_clipped_trap (traps, q[b].y, q[c].y, &left, &right); + right.p1 = q[c]; right.p2 = q[d]; + _cairo_traps_add_clipped_trap (traps, q[c].y, q[d].y, &left, &right); + } + } else { + if (b_left_of_d) { + /* Y-sort is abdc and b is left of d, (slope (ab) > slope (ad)) + * + * a a a + * // / \ |\ a.y b.y ab ad + * /b/ b \ b \ + * / / \ \ \ \ b.y d.y bc ad + * /d/ \ d \ d + * // \ / \| d.y c.y bc dc + * c c c + */ + left.p1 = q[a]; left.p2 = q[b]; + right.p1 = q[a]; right.p2 = q[d]; + _cairo_traps_add_clipped_trap (traps, q[a].y, q[b].y, &left, &right); + left.p1 = q[b]; left.p2 = q[c]; + _cairo_traps_add_clipped_trap (traps, q[b].y, q[d].y, &left, &right); + right.p1 = q[d]; right.p2 = q[c]; + _cairo_traps_add_clipped_trap (traps, q[d].y, q[c].y, &left, &right); + } else { + /* Y-sort is abdc and b is right of d, (slope (ab) <= slope (ad)) + * + * a a a + * /| / \ \\ a.y b.y ad ab + * / b / b \b\ + * / / / / \ \ b.y d.y ad bc + * d / d / \d\ + * |/ \ / \\ d.y c.y dc bc + * c c c + */ + left.p1 = q[a]; left.p2 = q[d]; + right.p1 = q[a]; right.p2 = q[b]; + _cairo_traps_add_clipped_trap (traps, q[a].y, q[b].y, &left, &right); + right.p1 = q[b]; right.p2 = q[c]; + _cairo_traps_add_clipped_trap (traps, q[b].y, q[d].y, &left, &right); + left.p1 = q[d]; left.p2 = q[c]; + _cairo_traps_add_clipped_trap (traps, q[d].y, q[c].y, &left, &right); + } + } +} + +static void add_tri (cairo_traps_t *traps, + int y1, int y2, + const cairo_line_t *left, + const cairo_line_t *right) +{ + if (y2 < y1) { + int tmp = y1; + y1 = y2; + y2 = tmp; + } + + if (_cairo_lines_compare_at_y (left, right, y1) > 0) { + const cairo_line_t *tmp = left; + left = right; + right = tmp; + } + + _cairo_traps_add_clipped_trap (traps, y1, y2, left, right); +} + +void +_cairo_traps_tessellate_triangle_with_edges (cairo_traps_t *traps, + const cairo_point_t t[3], + const cairo_point_t edges[4]) +{ + cairo_line_t lines[3]; + + if (edges[0].y <= edges[1].y) { + lines[0].p1 = edges[0]; + lines[0].p2 = edges[1]; + } else { + lines[0].p1 = edges[1]; + lines[0].p2 = edges[0]; + } + + if (edges[2].y <= edges[3].y) { + lines[1].p1 = edges[2]; + lines[1].p2 = edges[3]; + } else { + lines[1].p1 = edges[3]; + lines[1].p2 = edges[2]; + } + + if (t[1].y == t[2].y) { + add_tri (traps, t[0].y, t[1].y, &lines[0], &lines[1]); + return; + } + + if (t[1].y <= t[2].y) { + lines[2].p1 = t[1]; + lines[2].p2 = t[2]; + } else { + lines[2].p1 = t[2]; + lines[2].p2 = t[1]; + } + + if (((t[1].y - t[0].y) < 0) ^ ((t[2].y - t[0].y) < 0)) { + add_tri (traps, t[0].y, t[1].y, &lines[0], &lines[2]); + add_tri (traps, t[0].y, t[2].y, &lines[1], &lines[2]); + } else if (abs(t[1].y - t[0].y) < abs(t[2].y - t[0].y)) { + add_tri (traps, t[0].y, t[1].y, &lines[0], &lines[1]); + add_tri (traps, t[1].y, t[2].y, &lines[2], &lines[1]); + } else { + add_tri (traps, t[0].y, t[2].y, &lines[1], &lines[0]); + add_tri (traps, t[1].y, t[2].y, &lines[2], &lines[0]); + } +} + +/** + * _cairo_traps_init_boxes: + * @traps: a #cairo_traps_t + * @box: an array box that will each be converted to a single trapezoid + * to store in @traps. + * + * Initializes a #cairo_traps_t to contain an array of rectangular + * trapezoids. + **/ +cairo_status_t +_cairo_traps_init_boxes (cairo_traps_t *traps, + const cairo_boxes_t *boxes) +{ + cairo_trapezoid_t *trap; + const struct _cairo_boxes_chunk *chunk; + + _cairo_traps_init (traps); + + while (traps->traps_size < boxes->num_boxes) { + if (unlikely (! _cairo_traps_grow (traps))) { + _cairo_traps_fini (traps); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + } + + traps->num_traps = boxes->num_boxes; + traps->is_rectilinear = TRUE; + traps->is_rectangular = TRUE; + traps->maybe_region = boxes->is_pixel_aligned; + + trap = &traps->traps[0]; + for (chunk = &boxes->chunks; chunk != NULL; chunk = chunk->next) { + const cairo_box_t *box; + int i; + + box = chunk->base; + for (i = 0; i < chunk->count; i++) { + trap->top = box->p1.y; + trap->bottom = box->p2.y; + + trap->left.p1 = box->p1; + trap->left.p2.x = box->p1.x; + trap->left.p2.y = box->p2.y; + + trap->right.p1.x = box->p2.x; + trap->right.p1.y = box->p1.y; + trap->right.p2 = box->p2; + + box++, trap++; + } + } + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_traps_tessellate_rectangle (cairo_traps_t *traps, + const cairo_point_t *top_left, + const cairo_point_t *bottom_right) +{ + cairo_line_t left; + cairo_line_t right; + cairo_fixed_t top, bottom; + + if (top_left->y == bottom_right->y) + return CAIRO_STATUS_SUCCESS; + + if (top_left->x == bottom_right->x) + return CAIRO_STATUS_SUCCESS; + + left.p1.x = left.p2.x = top_left->x; + left.p1.y = right.p1.y = top_left->y; + right.p1.x = right.p2.x = bottom_right->x; + left.p2.y = right.p2.y = bottom_right->y; + + top = top_left->y; + bottom = bottom_right->y; + + if (traps->num_limits) { + cairo_bool_t reversed; + int n; + + if (top >= traps->bounds.p2.y || bottom <= traps->bounds.p1.y) + return CAIRO_STATUS_SUCCESS; + + /* support counter-clockwise winding for rectangular tessellation */ + reversed = top_left->x > bottom_right->x; + if (reversed) { + right.p1.x = right.p2.x = top_left->x; + left.p1.x = left.p2.x = bottom_right->x; + } + + if (left.p1.x >= traps->bounds.p2.x || right.p1.x <= traps->bounds.p1.x) + return CAIRO_STATUS_SUCCESS; + + for (n = 0; n < traps->num_limits; n++) { + const cairo_box_t *limits = &traps->limits[n]; + cairo_line_t _left, _right; + cairo_fixed_t _top, _bottom; + + if (top >= limits->p2.y) + continue; + if (bottom <= limits->p1.y) + continue; + + /* Trivially reject if trapezoid is entirely to the right or + * to the left of the limits. */ + if (left.p1.x >= limits->p2.x) + continue; + if (right.p1.x <= limits->p1.x) + continue; + + /* Otherwise, clip the trapezoid to the limits. */ + _top = top; + if (_top < limits->p1.y) + _top = limits->p1.y; + + _bottom = bottom; + if (_bottom > limits->p2.y) + _bottom = limits->p2.y; + + if (_bottom <= _top) + continue; + + _left = left; + if (_left.p1.x < limits->p1.x) { + _left.p1.x = limits->p1.x; + _left.p1.y = limits->p1.y; + _left.p2.x = limits->p1.x; + _left.p2.y = limits->p2.y; + } + + _right = right; + if (_right.p1.x > limits->p2.x) { + _right.p1.x = limits->p2.x; + _right.p1.y = limits->p1.y; + _right.p2.x = limits->p2.x; + _right.p2.y = limits->p2.y; + } + + if (left.p1.x >= right.p1.x) + continue; + + if (reversed) + _cairo_traps_add_trap (traps, _top, _bottom, &_right, &_left); + else + _cairo_traps_add_trap (traps, _top, _bottom, &_left, &_right); + } + } else { + _cairo_traps_add_trap (traps, top, bottom, &left, &right); + } + + return traps->status; +} + +void +_cairo_traps_translate (cairo_traps_t *traps, int x, int y) +{ + cairo_fixed_t xoff, yoff; + cairo_trapezoid_t *t; + int i; + + /* Ugh. The cairo_composite/(Render) interface doesn't allow + an offset for the trapezoids. Need to manually shift all + the coordinates to align with the offset origin of the + intermediate surface. */ + + xoff = _cairo_fixed_from_int (x); + yoff = _cairo_fixed_from_int (y); + + for (i = 0, t = traps->traps; i < traps->num_traps; i++, t++) { + t->top += yoff; + t->bottom += yoff; + t->left.p1.x += xoff; + t->left.p1.y += yoff; + t->left.p2.x += xoff; + t->left.p2.y += yoff; + t->right.p1.x += xoff; + t->right.p1.y += yoff; + t->right.p2.x += xoff; + t->right.p2.y += yoff; + } +} + +void +_cairo_trapezoid_array_translate_and_scale (cairo_trapezoid_t *offset_traps, + cairo_trapezoid_t *src_traps, + int num_traps, + double tx, double ty, + double sx, double sy) +{ + int i; + cairo_fixed_t xoff = _cairo_fixed_from_double (tx); + cairo_fixed_t yoff = _cairo_fixed_from_double (ty); + + if (sx == 1.0 && sy == 1.0) { + for (i = 0; i < num_traps; i++) { + offset_traps[i].top = src_traps[i].top + yoff; + offset_traps[i].bottom = src_traps[i].bottom + yoff; + offset_traps[i].left.p1.x = src_traps[i].left.p1.x + xoff; + offset_traps[i].left.p1.y = src_traps[i].left.p1.y + yoff; + offset_traps[i].left.p2.x = src_traps[i].left.p2.x + xoff; + offset_traps[i].left.p2.y = src_traps[i].left.p2.y + yoff; + offset_traps[i].right.p1.x = src_traps[i].right.p1.x + xoff; + offset_traps[i].right.p1.y = src_traps[i].right.p1.y + yoff; + offset_traps[i].right.p2.x = src_traps[i].right.p2.x + xoff; + offset_traps[i].right.p2.y = src_traps[i].right.p2.y + yoff; + } + } else { + cairo_fixed_t xsc = _cairo_fixed_from_double (sx); + cairo_fixed_t ysc = _cairo_fixed_from_double (sy); + + for (i = 0; i < num_traps; i++) { + offset_traps[i].top = _cairo_fixed_mul (src_traps[i].top + yoff, ysc); + offset_traps[i].bottom = _cairo_fixed_mul (src_traps[i].bottom + yoff, ysc); + offset_traps[i].left.p1.x = _cairo_fixed_mul (src_traps[i].left.p1.x + xoff, xsc); + offset_traps[i].left.p1.y = _cairo_fixed_mul (src_traps[i].left.p1.y + yoff, ysc); + offset_traps[i].left.p2.x = _cairo_fixed_mul (src_traps[i].left.p2.x + xoff, xsc); + offset_traps[i].left.p2.y = _cairo_fixed_mul (src_traps[i].left.p2.y + yoff, ysc); + offset_traps[i].right.p1.x = _cairo_fixed_mul (src_traps[i].right.p1.x + xoff, xsc); + offset_traps[i].right.p1.y = _cairo_fixed_mul (src_traps[i].right.p1.y + yoff, ysc); + offset_traps[i].right.p2.x = _cairo_fixed_mul (src_traps[i].right.p2.x + xoff, xsc); + offset_traps[i].right.p2.y = _cairo_fixed_mul (src_traps[i].right.p2.y + yoff, ysc); + } + } +} + +static cairo_bool_t +_cairo_trap_contains (cairo_trapezoid_t *t, cairo_point_t *pt) +{ + cairo_slope_t slope_left, slope_pt, slope_right; + + if (t->top > pt->y) + return FALSE; + if (t->bottom < pt->y) + return FALSE; + + _cairo_slope_init (&slope_left, &t->left.p1, &t->left.p2); + _cairo_slope_init (&slope_pt, &t->left.p1, pt); + + if (_cairo_slope_compare (&slope_left, &slope_pt) < 0) + return FALSE; + + _cairo_slope_init (&slope_right, &t->right.p1, &t->right.p2); + _cairo_slope_init (&slope_pt, &t->right.p1, pt); + + if (_cairo_slope_compare (&slope_pt, &slope_right) < 0) + return FALSE; + + return TRUE; +} + +cairo_bool_t +_cairo_traps_contain (const cairo_traps_t *traps, + double x, double y) +{ + int i; + cairo_point_t point; + + point.x = _cairo_fixed_from_double (x); + point.y = _cairo_fixed_from_double (y); + + for (i = 0; i < traps->num_traps; i++) { + if (_cairo_trap_contains (&traps->traps[i], &point)) + return TRUE; + } + + return FALSE; +} + +static cairo_fixed_t +_line_compute_intersection_x_for_y (const cairo_line_t *line, + cairo_fixed_t y) +{ + return _cairo_edge_compute_intersection_x_for_y (&line->p1, &line->p2, y); +} + +void +_cairo_traps_extents (const cairo_traps_t *traps, + cairo_box_t *extents) +{ + int i; + + if (traps->num_traps == 0) { + extents->p1.x = extents->p1.y = 0; + extents->p2.x = extents->p2.y = 0; + return; + } + + extents->p1.x = extents->p1.y = INT32_MAX; + extents->p2.x = extents->p2.y = INT32_MIN; + + for (i = 0; i < traps->num_traps; i++) { + const cairo_trapezoid_t *trap = &traps->traps[i]; + + if (trap->top < extents->p1.y) + extents->p1.y = trap->top; + if (trap->bottom > extents->p2.y) + extents->p2.y = trap->bottom; + + if (trap->left.p1.x < extents->p1.x) { + cairo_fixed_t x = trap->left.p1.x; + if (trap->top != trap->left.p1.y) { + x = _line_compute_intersection_x_for_y (&trap->left, + trap->top); + if (x < extents->p1.x) + extents->p1.x = x; + } else + extents->p1.x = x; + } + if (trap->left.p2.x < extents->p1.x) { + cairo_fixed_t x = trap->left.p2.x; + if (trap->bottom != trap->left.p2.y) { + x = _line_compute_intersection_x_for_y (&trap->left, + trap->bottom); + if (x < extents->p1.x) + extents->p1.x = x; + } else + extents->p1.x = x; + } + + if (trap->right.p1.x > extents->p2.x) { + cairo_fixed_t x = trap->right.p1.x; + if (trap->top != trap->right.p1.y) { + x = _line_compute_intersection_x_for_y (&trap->right, + trap->top); + if (x > extents->p2.x) + extents->p2.x = x; + } else + extents->p2.x = x; + } + if (trap->right.p2.x > extents->p2.x) { + cairo_fixed_t x = trap->right.p2.x; + if (trap->bottom != trap->right.p2.y) { + x = _line_compute_intersection_x_for_y (&trap->right, + trap->bottom); + if (x > extents->p2.x) + extents->p2.x = x; + } else + extents->p2.x = x; + } + } +} + +static cairo_bool_t +_mono_edge_is_vertical (const cairo_line_t *line) +{ + return _cairo_fixed_integer_round_down (line->p1.x) == _cairo_fixed_integer_round_down (line->p2.x); +} + +static cairo_bool_t +_traps_are_pixel_aligned (cairo_traps_t *traps, + cairo_antialias_t antialias) +{ + int i; + + if (antialias == CAIRO_ANTIALIAS_NONE) { + for (i = 0; i < traps->num_traps; i++) { + if (! _mono_edge_is_vertical (&traps->traps[i].left) || + ! _mono_edge_is_vertical (&traps->traps[i].right)) + { + traps->maybe_region = FALSE; + return FALSE; + } + } + } else { + for (i = 0; i < traps->num_traps; i++) { + if (traps->traps[i].left.p1.x != traps->traps[i].left.p2.x || + traps->traps[i].right.p1.x != traps->traps[i].right.p2.x || + ! _cairo_fixed_is_integer (traps->traps[i].top) || + ! _cairo_fixed_is_integer (traps->traps[i].bottom) || + ! _cairo_fixed_is_integer (traps->traps[i].left.p1.x) || + ! _cairo_fixed_is_integer (traps->traps[i].right.p1.x)) + { + traps->maybe_region = FALSE; + return FALSE; + } + } + } + + return TRUE; +} + +/** + * _cairo_traps_extract_region: + * @traps: a #cairo_traps_t + * @region: a #cairo_region_t + * + * Determines if a set of trapezoids are exactly representable as a + * cairo region. If so, the passed-in region is initialized to + * the area representing the given traps. It should be finalized + * with cairo_region_fini(). If not, %CAIRO_INT_STATUS_UNSUPPORTED + * is returned. + * + * Return value: %CAIRO_STATUS_SUCCESS, %CAIRO_INT_STATUS_UNSUPPORTED + * or %CAIRO_STATUS_NO_MEMORY + **/ +cairo_int_status_t +_cairo_traps_extract_region (cairo_traps_t *traps, + cairo_antialias_t antialias, + cairo_region_t **region) +{ + cairo_rectangle_int_t stack_rects[CAIRO_STACK_ARRAY_LENGTH (cairo_rectangle_int_t)]; + cairo_rectangle_int_t *rects = stack_rects; + cairo_int_status_t status; + int i, rect_count; + + /* we only treat this a hint... */ + if (antialias != CAIRO_ANTIALIAS_NONE && ! traps->maybe_region) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (! _traps_are_pixel_aligned (traps, antialias)) { + traps->maybe_region = FALSE; + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + if (traps->num_traps > ARRAY_LENGTH (stack_rects)) { + rects = _cairo_malloc_ab (traps->num_traps, sizeof (cairo_rectangle_int_t)); + + if (unlikely (rects == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + rect_count = 0; + for (i = 0; i < traps->num_traps; i++) { + int x1, y1, x2, y2; + + if (antialias == CAIRO_ANTIALIAS_NONE) { + x1 = _cairo_fixed_integer_round_down (traps->traps[i].left.p1.x); + y1 = _cairo_fixed_integer_round_down (traps->traps[i].top); + x2 = _cairo_fixed_integer_round_down (traps->traps[i].right.p1.x); + y2 = _cairo_fixed_integer_round_down (traps->traps[i].bottom); + } else { + x1 = _cairo_fixed_integer_part (traps->traps[i].left.p1.x); + y1 = _cairo_fixed_integer_part (traps->traps[i].top); + x2 = _cairo_fixed_integer_part (traps->traps[i].right.p1.x); + y2 = _cairo_fixed_integer_part (traps->traps[i].bottom); + } + + if (x2 > x1 && y2 > y1) { + rects[rect_count].x = x1; + rects[rect_count].y = y1; + rects[rect_count].width = x2 - x1; + rects[rect_count].height = y2 - y1; + rect_count++; + } + } + + + *region = cairo_region_create_rectangles (rects, rect_count); + status = (*region)->status; + + if (rects != stack_rects) + free (rects); + + return status; +} + +cairo_bool_t +_cairo_traps_to_boxes (cairo_traps_t *traps, + cairo_antialias_t antialias, + cairo_boxes_t *boxes) +{ + int i; + + for (i = 0; i < traps->num_traps; i++) { + if (traps->traps[i].left.p1.x != traps->traps[i].left.p2.x || + traps->traps[i].right.p1.x != traps->traps[i].right.p2.x) + return FALSE; + } + + _cairo_boxes_init (boxes); + + boxes->num_boxes = traps->num_traps; + boxes->chunks.base = (cairo_box_t *) traps->traps; + boxes->chunks.count = traps->num_traps; + boxes->chunks.size = traps->num_traps; + + if (antialias != CAIRO_ANTIALIAS_NONE) { + for (i = 0; i < traps->num_traps; i++) { + /* Note the traps and boxes alias so we need to take the local copies first. */ + cairo_fixed_t x1 = traps->traps[i].left.p1.x; + cairo_fixed_t x2 = traps->traps[i].right.p1.x; + cairo_fixed_t y1 = traps->traps[i].top; + cairo_fixed_t y2 = traps->traps[i].bottom; + + boxes->chunks.base[i].p1.x = x1; + boxes->chunks.base[i].p1.y = y1; + boxes->chunks.base[i].p2.x = x2; + boxes->chunks.base[i].p2.y = y2; + + if (boxes->is_pixel_aligned) { + boxes->is_pixel_aligned = + _cairo_fixed_is_integer (x1) && _cairo_fixed_is_integer (y1) && + _cairo_fixed_is_integer (x2) && _cairo_fixed_is_integer (y2); + } + } + } else { + boxes->is_pixel_aligned = TRUE; + + for (i = 0; i < traps->num_traps; i++) { + /* Note the traps and boxes alias so we need to take the local copies first. */ + cairo_fixed_t x1 = traps->traps[i].left.p1.x; + cairo_fixed_t x2 = traps->traps[i].right.p1.x; + cairo_fixed_t y1 = traps->traps[i].top; + cairo_fixed_t y2 = traps->traps[i].bottom; + + /* round down here to match Pixman's behavior when using traps. */ + boxes->chunks.base[i].p1.x = _cairo_fixed_round_down (x1); + boxes->chunks.base[i].p1.y = _cairo_fixed_round_down (y1); + boxes->chunks.base[i].p2.x = _cairo_fixed_round_down (x2); + boxes->chunks.base[i].p2.y = _cairo_fixed_round_down (y2); + } + } + + return TRUE; +} + +/* moves trap points such that they become the actual corners of the trapezoid */ +static void +_sanitize_trap (cairo_trapezoid_t *t) +{ + cairo_trapezoid_t s = *t; + +#define FIX(lr, tb, p) \ + if (t->lr.p.y != t->tb) { \ + t->lr.p.x = s.lr.p2.x + _cairo_fixed_mul_div_floor (s.lr.p1.x - s.lr.p2.x, s.tb - s.lr.p2.y, s.lr.p1.y - s.lr.p2.y); \ + t->lr.p.y = s.tb; \ + } + FIX (left, top, p1); + FIX (left, bottom, p2); + FIX (right, top, p1); + FIX (right, bottom, p2); +} + +cairo_private cairo_status_t +_cairo_traps_path (const cairo_traps_t *traps, + cairo_path_fixed_t *path) +{ + int i; + + for (i = 0; i < traps->num_traps; i++) { + cairo_status_t status; + cairo_trapezoid_t trap = traps->traps[i]; + + if (trap.top == trap.bottom) + continue; + + _sanitize_trap (&trap); + + status = _cairo_path_fixed_move_to (path, trap.left.p1.x, trap.top); + if (unlikely (status)) return status; + status = _cairo_path_fixed_line_to (path, trap.right.p1.x, trap.top); + if (unlikely (status)) return status; + status = _cairo_path_fixed_line_to (path, trap.right.p2.x, trap.bottom); + if (unlikely (status)) return status; + status = _cairo_path_fixed_line_to (path, trap.left.p2.x, trap.bottom); + if (unlikely (status)) return status; + status = _cairo_path_fixed_close_path (path); + if (unlikely (status)) return status; + } + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_debug_print_traps (FILE *file, const cairo_traps_t *traps) +{ + cairo_box_t extents; + int n; + +#if 0 + if (traps->has_limits) { + printf ("%s: limits=(%d, %d, %d, %d)\n", + filename, + traps->limits.p1.x, traps->limits.p1.y, + traps->limits.p2.x, traps->limits.p2.y); + } +#endif + + _cairo_traps_extents (traps, &extents); + fprintf (file, "extents=(%d, %d, %d, %d)\n", + extents.p1.x, extents.p1.y, + extents.p2.x, extents.p2.y); + + for (n = 0; n < traps->num_traps; n++) { + fprintf (file, "%d %d L:(%d, %d), (%d, %d) R:(%d, %d), (%d, %d)\n", + traps->traps[n].top, + traps->traps[n].bottom, + traps->traps[n].left.p1.x, + traps->traps[n].left.p1.y, + traps->traps[n].left.p2.x, + traps->traps[n].left.p2.y, + traps->traps[n].right.p1.x, + traps->traps[n].right.p1.y, + traps->traps[n].right.p2.x, + traps->traps[n].right.p2.y); + } +} + +struct cairo_trap_renderer { + cairo_span_renderer_t base; + cairo_traps_t *traps; +}; + +static cairo_status_t +span_to_traps (void *abstract_renderer, int y, int h, + const cairo_half_open_span_t *spans, unsigned num_spans) +{ + struct cairo_trap_renderer *r = abstract_renderer; + cairo_fixed_t top, bot; + + if (num_spans == 0) + return CAIRO_STATUS_SUCCESS; + + top = _cairo_fixed_from_int (y); + bot = _cairo_fixed_from_int (y + h); + do { + if (spans[0].coverage) { + cairo_fixed_t x0 = _cairo_fixed_from_int(spans[0].x); + cairo_fixed_t x1 = _cairo_fixed_from_int(spans[1].x); + cairo_line_t left = { { x0, top }, { x0, bot } }, + right = { { x1, top }, { x1, bot } }; + _cairo_traps_add_trap (r->traps, top, bot, &left, &right); + } + spans++; + } while (--num_spans > 1); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_int_status_t +_cairo_rasterise_polygon_to_traps (cairo_polygon_t *polygon, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias, + cairo_traps_t *traps) +{ + struct cairo_trap_renderer renderer; + cairo_scan_converter_t *converter; + cairo_int_status_t status; + cairo_rectangle_int_t r; + + TRACE ((stderr, "%s: fill_rule=%d, antialias=%d\n", + __FUNCTION__, fill_rule, antialias)); + assert(antialias == CAIRO_ANTIALIAS_NONE); + + renderer.traps = traps; + renderer.base.render_rows = span_to_traps; + + _cairo_box_round_to_rectangle (&polygon->extents, &r); + converter = _cairo_mono_scan_converter_create (r.x, r.y, + r.x + r.width, + r.y + r.height, + fill_rule); + status = _cairo_mono_scan_converter_add_polygon (converter, polygon); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = converter->generate (converter, &renderer.base); + converter->destroy (converter); + return status; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-tristrip-private.h b/local/recipes/libs/cairo/source/src/cairo-tristrip-private.h new file mode 100644 index 0000000000..ccd28799e8 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-tristrip-private.h @@ -0,0 +1,94 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_TRISTRIP_PRIVATE_H +#define CAIRO_TRISTRIP_PRIVATE_H + +#include "cairo-compiler-private.h" +#include "cairo-error-private.h" +#include "cairo-types-private.h" + +CAIRO_BEGIN_DECLS + +struct _cairo_tristrip { + cairo_status_t status; + + /* XXX clipping */ + + const cairo_box_t *limits; + int num_limits; + + int num_points; + int size_points; + cairo_point_t *points; + cairo_point_t points_embedded[64]; +}; + +cairo_private void +_cairo_tristrip_init (cairo_tristrip_t *strip); + +cairo_private void +_cairo_tristrip_limit (cairo_tristrip_t *strip, + const cairo_box_t *limits, + int num_limits); + +cairo_private void +_cairo_tristrip_init_with_clip (cairo_tristrip_t *strip, + const cairo_clip_t *clip); + +cairo_private void +_cairo_tristrip_translate (cairo_tristrip_t *strip, int x, int y); + +cairo_private void +_cairo_tristrip_move_to (cairo_tristrip_t *strip, + const cairo_point_t *point); + +cairo_private void +_cairo_tristrip_add_point (cairo_tristrip_t *strip, + const cairo_point_t *point); + +cairo_private void +_cairo_tristrip_extents (const cairo_tristrip_t *strip, + cairo_box_t *extents); + +cairo_private void +_cairo_tristrip_fini (cairo_tristrip_t *strip); + +#define _cairo_tristrip_status(T) ((T)->status) + +CAIRO_END_DECLS + +#endif /* CAIRO_TRISTRIP_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-tristrip.c b/local/recipes/libs/cairo/source/src/cairo-tristrip.c new file mode 100644 index 0000000000..bcf3b23716 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-tristrip.c @@ -0,0 +1,185 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-error-private.h" +#include "cairo-tristrip-private.h" + +void +_cairo_tristrip_init (cairo_tristrip_t *strip) +{ + VG (VALGRIND_MAKE_MEM_UNDEFINED (strip, sizeof (cairo_tristrip_t))); + + strip->status = CAIRO_STATUS_SUCCESS; + + strip->num_limits = 0; + strip->num_points = 0; + + strip->size_points = ARRAY_LENGTH (strip->points_embedded); + strip->points = strip->points_embedded; +} + +void +_cairo_tristrip_fini (cairo_tristrip_t *strip) +{ + if (strip->points != strip->points_embedded) + free (strip->points); + + VG (VALGRIND_MAKE_MEM_UNDEFINED (strip, sizeof (cairo_tristrip_t))); +} + + +void +_cairo_tristrip_limit (cairo_tristrip_t *strip, + const cairo_box_t *limits, + int num_limits) +{ + strip->limits = limits; + strip->num_limits = num_limits; +} + +void +_cairo_tristrip_init_with_clip (cairo_tristrip_t *strip, + const cairo_clip_t *clip) +{ + _cairo_tristrip_init (strip); + if (clip) + _cairo_tristrip_limit (strip, clip->boxes, clip->num_boxes); +} + +/* make room for at least one more trap */ +static cairo_bool_t +_cairo_tristrip_grow (cairo_tristrip_t *strip) +{ + cairo_point_t *points; + int new_size = 4 * strip->size_points; + + if (CAIRO_INJECT_FAULT ()) { + strip->status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + return FALSE; + } + + if (strip->points == strip->points_embedded) { + points = _cairo_malloc_ab (new_size, sizeof (cairo_point_t)); + if (points != NULL) + memcpy (points, strip->points, sizeof (strip->points_embedded)); + } else { + points = _cairo_realloc_ab (strip->points, + new_size, sizeof (cairo_trapezoid_t)); + } + + if (unlikely (points == NULL)) { + strip->status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + return FALSE; + } + + strip->points = points; + strip->size_points = new_size; + return TRUE; +} + +void +_cairo_tristrip_add_point (cairo_tristrip_t *strip, + const cairo_point_t *p) +{ + if (unlikely (strip->num_points == strip->size_points)) { + if (unlikely (! _cairo_tristrip_grow (strip))) + return; + } + + strip->points[strip->num_points++] = *p; +} + +/* Insert degenerate triangles to advance to the given point. The + * next point inserted must also be @p. */ +void +_cairo_tristrip_move_to (cairo_tristrip_t *strip, + const cairo_point_t *p) +{ + if (strip->num_points == 0) + return; + + _cairo_tristrip_add_point (strip, &strip->points[strip->num_points-1]); + _cairo_tristrip_add_point (strip, p); +#if 0 + /* and one more for luck! (to preserve cw/ccw ordering) */ + _cairo_tristrip_add_point (strip, p); +#endif +} + +void +_cairo_tristrip_translate (cairo_tristrip_t *strip, int x, int y) +{ + cairo_fixed_t xoff, yoff; + cairo_point_t *p; + int i; + + xoff = _cairo_fixed_from_int (x); + yoff = _cairo_fixed_from_int (y); + + for (i = 0, p = strip->points; i < strip->num_points; i++, p++) { + p->x += xoff; + p->y += yoff; + } +} + +void +_cairo_tristrip_extents (const cairo_tristrip_t *strip, + cairo_box_t *extents) +{ + int i; + + if (strip->num_points == 0) { + extents->p1.x = extents->p1.y = 0; + extents->p2.x = extents->p2.y = 0; + return; + } + + extents->p2 = extents->p1 = strip->points[0]; + for (i = 1; i < strip->num_points; i++) { + const cairo_point_t *p = &strip->points[i]; + + if (p->x < extents->p1.x) + extents->p1.x = p->x; + else if (p->x > extents->p2.x) + extents->p2.x = p->x; + + if (p->y < extents->p1.y) + extents->p1.y = p->y; + else if (p->y > extents->p2.y) + extents->p2.y = p->y; + } +} diff --git a/local/recipes/libs/cairo/source/src/cairo-truetype-subset-private.h b/local/recipes/libs/cairo/source/src/cairo-truetype-subset-private.h new file mode 100644 index 0000000000..d97cf91620 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-truetype-subset-private.h @@ -0,0 +1,212 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Kristian Høgsberg + * Adrian Johnson + */ + +#ifndef CAIRO_TRUETYPE_SUBSET_PRIVATE_H +#define CAIRO_TRUETYPE_SUBSET_PRIVATE_H + +#include "cairoint.h" + +#if CAIRO_HAS_FONT_SUBSET + +/* The structs defined here should strictly follow the TrueType + * specification and not be padded. We use only 16-bit integer + * in their definition to guarantee that. The fields of type + * "FIXED" in the TT spec are broken into two *_1 and *_2 16-bit + * parts, and 64-bit members are broken into four. + * + * The test truetype-tables in the test suite makes sure that + * these tables have the right size. Please update that test + * if you add new tables/structs that should be packed. + */ + +#define MAKE_TT_TAG(a, b, c, d) ((int)((uint32_t)a<<24 | b<<16 | c<<8 | d)) +#define TT_TAG_CFF MAKE_TT_TAG('C','F','F',' ') +#define TT_TAG_cmap MAKE_TT_TAG('c','m','a','p') +#define TT_TAG_cvt MAKE_TT_TAG('c','v','t',' ') +#define TT_TAG_fpgm MAKE_TT_TAG('f','p','g','m') +#define TT_TAG_glyf MAKE_TT_TAG('g','l','y','f') +#define TT_TAG_head MAKE_TT_TAG('h','e','a','d') +#define TT_TAG_hhea MAKE_TT_TAG('h','h','e','a') +#define TT_TAG_hmtx MAKE_TT_TAG('h','m','t','x') +#define TT_TAG_loca MAKE_TT_TAG('l','o','c','a') +#define TT_TAG_maxp MAKE_TT_TAG('m','a','x','p') +#define TT_TAG_name MAKE_TT_TAG('n','a','m','e') +#define TT_TAG_OS2 MAKE_TT_TAG('O','S','/','2') +#define TT_TAG_post MAKE_TT_TAG('p','o','s','t') +#define TT_TAG_prep MAKE_TT_TAG('p','r','e','p') + +/* All tt_* structs are big-endian */ +typedef struct _tt_cmap_index { + uint16_t platform; + uint16_t encoding; + uint32_t offset; +} tt_cmap_index_t; + +typedef struct _tt_cmap { + uint16_t version; + uint16_t num_tables; + tt_cmap_index_t index[1]; +} tt_cmap_t; + +typedef struct _segment_map { + uint16_t format; + uint16_t length; + uint16_t version; + uint16_t segCountX2; + uint16_t searchRange; + uint16_t entrySelector; + uint16_t rangeShift; + uint16_t endCount[1]; +} tt_segment_map_t; + +typedef struct _tt_head { + int16_t version_1; + int16_t version_2; + int16_t revision_1; + int16_t revision_2; + uint16_t checksum_1; + uint16_t checksum_2; + uint16_t magic_1; + uint16_t magic_2; + uint16_t flags; + uint16_t units_per_em; + int16_t created_1; + int16_t created_2; + int16_t created_3; + int16_t created_4; + int16_t modified_1; + int16_t modified_2; + int16_t modified_3; + int16_t modified_4; + int16_t x_min; /* FWORD */ + int16_t y_min; /* FWORD */ + int16_t x_max; /* FWORD */ + int16_t y_max; /* FWORD */ + uint16_t mac_style; + uint16_t lowest_rec_pppem; + int16_t font_direction_hint; + int16_t index_to_loc_format; + int16_t glyph_data_format; +} tt_head_t; + +typedef struct _tt_hhea { + int16_t version_1; + int16_t version_2; + int16_t ascender; /* FWORD */ + int16_t descender; /* FWORD */ + int16_t line_gap; /* FWORD */ + uint16_t advance_max_width; /* UFWORD */ + int16_t min_left_side_bearing; /* FWORD */ + int16_t min_right_side_bearing; /* FWORD */ + int16_t x_max_extent; /* FWORD */ + int16_t caret_slope_rise; + int16_t caret_slope_run; + int16_t reserved[5]; + int16_t metric_data_format; + uint16_t num_hmetrics; +} tt_hhea_t; + +typedef struct _tt_maxp { + int16_t version_1; + int16_t version_2; + uint16_t num_glyphs; + uint16_t max_points; + uint16_t max_contours; + uint16_t max_composite_points; + uint16_t max_composite_contours; + uint16_t max_zones; + uint16_t max_twilight_points; + uint16_t max_storage; + uint16_t max_function_defs; + uint16_t max_instruction_defs; + uint16_t max_stack_elements; + uint16_t max_size_of_instructions; + uint16_t max_component_elements; + uint16_t max_component_depth; +} tt_maxp_t; + +typedef struct _tt_name_record { + uint16_t platform; + uint16_t encoding; + uint16_t language; + uint16_t name; + uint16_t length; + uint16_t offset; +} tt_name_record_t; + +typedef struct _tt_name { + uint16_t format; + uint16_t num_records; + uint16_t strings_offset; + tt_name_record_t records[1]; +} tt_name_t; + + +/* bitmask for fsSelection field */ +#define TT_FS_SELECTION_ITALIC 1 +#define TT_FS_SELECTION_BOLD 32 + +/* _unused fields are defined in TT spec but not used by cairo */ +typedef struct _tt_os2 { + uint16_t _unused1[2]; + uint16_t usWeightClass; + uint16_t _unused2[28]; + uint16_t fsSelection; + uint16_t _unused3[11]; +} tt_os2_t; + +/* composite_glyph_t flags */ +#define TT_ARG_1_AND_2_ARE_WORDS 0x0001 +#define TT_WE_HAVE_A_SCALE 0x0008 +#define TT_MORE_COMPONENTS 0x0020 +#define TT_WE_HAVE_AN_X_AND_Y_SCALE 0x0040 +#define TT_WE_HAVE_A_TWO_BY_TWO 0x0080 + +typedef struct _tt_composite_glyph { + uint16_t flags; + uint16_t index; + uint16_t args[6]; /* 1 to 6 arguments depending on value of flags */ +} tt_composite_glyph_t; + +typedef struct _tt_glyph_data { + int16_t num_contours; + int8_t data[8]; + tt_composite_glyph_t glyph; +} tt_glyph_data_t; + +#endif /* CAIRO_HAS_FONT_SUBSET */ + +#endif /* CAIRO_TRUETYPE_SUBSET_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-truetype-subset.c b/local/recipes/libs/cairo/source/src/cairo-truetype-subset.c new file mode 100644 index 0000000000..a8551117c5 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-truetype-subset.c @@ -0,0 +1,1688 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Kristian Høgsberg + * Adrian Johnson + */ + +/* + * Useful links: + * http://developer.apple.com/textfonts/TTRefMan/RM06/Chap6.html + * http://www.microsoft.com/typography/specs/default.htm + */ + +#define _DEFAULT_SOURCE /* for snprintf(), strdup() */ +#include "cairoint.h" + +#include "cairo-array-private.h" +#include "cairo-error-private.h" + +#if CAIRO_HAS_FONT_SUBSET + +#include "cairo-scaled-font-subsets-private.h" +#include "cairo-truetype-subset-private.h" + + +typedef struct subset_glyph subset_glyph_t; +struct subset_glyph { + int parent_index; + unsigned long location; +}; + +typedef struct _cairo_truetype_font cairo_truetype_font_t; + +typedef struct table table_t; +struct table { + unsigned long tag; + cairo_status_t (*write) (cairo_truetype_font_t *font, unsigned long tag); + int pos; /* position in the font directory */ +}; + +struct _cairo_truetype_font { + + cairo_scaled_font_subset_t *scaled_font_subset; + + table_t truetype_tables[10]; + int num_tables; + + struct { + char *font_name; + char *ps_name; + int num_glyphs_in_face; /* glyphs in font */ + long x_min, y_min, x_max, y_max; + long ascent, descent; + int units_per_em; + } base; + + subset_glyph_t *glyphs; /* array size: num_glyphs_in_face + 2 */ + const cairo_scaled_font_backend_t *backend; + unsigned int num_glyphs; /* glyphs used */ + int *widths; /* array size: num_glyphs_in_face + 1 */ + int checksum_index; + cairo_array_t output; + cairo_array_t string_offsets; + unsigned long last_offset; + unsigned long last_boundary; + int *parent_to_subset; /* array size: num_glyphs_in_face + 1 */ + cairo_status_t status; + cairo_bool_t is_pdf; +}; + +/* + * Test that the structs we define for TrueType tables have the + * correct size, ie. they are not padded. + */ +#define check(T, S) COMPILE_TIME_ASSERT (sizeof (T) == (S)) +check (tt_head_t, 54); +check (tt_hhea_t, 36); +check (tt_maxp_t, 32); +check (tt_name_record_t, 12); +check (tt_name_t, 18); +check (tt_composite_glyph_t, 16); +check (tt_glyph_data_t, 26); +#undef check + +static cairo_status_t +cairo_truetype_font_use_glyph (cairo_truetype_font_t *font, + unsigned short glyph, + unsigned short *out); + +#define SFNT_VERSION 0x00010000 +#define SFNT_STRING_MAX_LENGTH 65535 + +static cairo_status_t +_cairo_truetype_font_set_error (cairo_truetype_font_t *font, + cairo_status_t status) +{ + if (status == CAIRO_STATUS_SUCCESS || + status == (int)CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + _cairo_status_set_error (&font->status, status); + + return _cairo_error (status); +} + +static cairo_status_t +_cairo_truetype_font_create (cairo_scaled_font_subset_t *scaled_font_subset, + cairo_bool_t is_pdf, + cairo_truetype_font_t **font_return) +{ + cairo_status_t status; + cairo_bool_t is_synthetic; + cairo_truetype_font_t *font; + const cairo_scaled_font_backend_t *backend; + tt_head_t head; + tt_hhea_t hhea; + tt_maxp_t maxp; + unsigned long size; + + backend = scaled_font_subset->scaled_font->backend; + if (!backend->load_truetype_table) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* FIXME: We should either support subsetting vertical fonts, or fail on + * vertical. Currently font_options_t doesn't have vertical flag, but + * it should be added in the future. For now, the freetype backend + * returns UNSUPPORTED in load_truetype_table if the font is vertical. + * + * if (cairo_font_options_get_vertical_layout (scaled_font_subset->scaled_font)) + * return CAIRO_INT_STATUS_UNSUPPORTED; + */ + + /* We need to use a fallback font if this font differs from the glyf outlines. */ + if (backend->is_synthetic) { + status = backend->is_synthetic (scaled_font_subset->scaled_font, &is_synthetic); + if (unlikely (status)) + return status; + + if (is_synthetic) + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + size = sizeof (tt_head_t); + status = backend->load_truetype_table (scaled_font_subset->scaled_font, + TT_TAG_head, 0, + (unsigned char *) &head, + &size); + if (unlikely (status)) + return status; + + size = sizeof (tt_maxp_t); + status = backend->load_truetype_table (scaled_font_subset->scaled_font, + TT_TAG_maxp, 0, + (unsigned char *) &maxp, + &size); + if (unlikely (status)) + return status; + + size = sizeof (tt_hhea_t); + status = backend->load_truetype_table (scaled_font_subset->scaled_font, + TT_TAG_hhea, 0, + (unsigned char *) &hhea, + &size); + if (unlikely (status)) + return status; + + font = _cairo_calloc (sizeof (cairo_truetype_font_t)); + if (unlikely (font == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + font->backend = backend; + font->base.num_glyphs_in_face = be16_to_cpu (maxp.num_glyphs); + font->scaled_font_subset = scaled_font_subset; + + font->last_offset = 0; + font->last_boundary = 0; + _cairo_array_init (&font->output, sizeof (char)); + status = _cairo_array_grow_by (&font->output, 4096); + if (unlikely (status)) + goto fail1; + + /* Add 2: +1 case font does not contain .notdef, and +1 because an extra + * entry is required to contain the end location of the last glyph. + */ + font->glyphs = _cairo_calloc_ab (font->base.num_glyphs_in_face + 2, sizeof (subset_glyph_t)); + if (unlikely (font->glyphs == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail1; + } + + /* Add 1 in case font does not contain .notdef */ + font->parent_to_subset = _cairo_calloc_ab (font->base.num_glyphs_in_face + 1, sizeof (int)); + if (unlikely (font->parent_to_subset == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail2; + } + + font->is_pdf = is_pdf; + font->num_glyphs = 0; + font->base.x_min = (int16_t) be16_to_cpu (head.x_min); + font->base.y_min = (int16_t) be16_to_cpu (head.y_min); + font->base.x_max = (int16_t) be16_to_cpu (head.x_max); + font->base.y_max = (int16_t) be16_to_cpu (head.y_max); + font->base.ascent = (int16_t) be16_to_cpu (hhea.ascender); + font->base.descent = (int16_t) be16_to_cpu (hhea.descender); + font->base.units_per_em = (int16_t) be16_to_cpu (head.units_per_em); + if (font->base.units_per_em == 0) + font->base.units_per_em = 2048; + + font->base.ps_name = NULL; + font->base.font_name = NULL; + status = _cairo_truetype_read_font_name (scaled_font_subset->scaled_font, + &font->base.ps_name, + &font->base.font_name); + if (_cairo_status_is_error (status)) + goto fail3; + + /* If the PS name is not found, create a CairoFont-x-y name. */ + if (font->base.ps_name == NULL) { + font->base.ps_name = _cairo_malloc (30); + if (unlikely (font->base.ps_name == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail3; + } + + snprintf(font->base.ps_name, 30, "CairoFont-%u-%u", + scaled_font_subset->font_id, + scaled_font_subset->subset_id); + } + + /* Add 1 in case font does not contain .notdef */ + font->widths = _cairo_calloc_ab (font->base.num_glyphs_in_face + 1, sizeof (int)); + if (unlikely (font->widths == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail4; + } + + _cairo_array_init (&font->string_offsets, sizeof (unsigned long)); + status = _cairo_array_grow_by (&font->string_offsets, 10); + if (unlikely (status)) + goto fail5; + + font->status = CAIRO_STATUS_SUCCESS; + + *font_return = font; + + return CAIRO_STATUS_SUCCESS; + + fail5: + _cairo_array_fini (&font->string_offsets); + free (font->widths); + fail4: + free (font->base.ps_name); + fail3: + free (font->parent_to_subset); + free (font->base.font_name); + fail2: + free (font->glyphs); + fail1: + _cairo_array_fini (&font->output); + free (font); + + return status; +} + +static void +cairo_truetype_font_destroy (cairo_truetype_font_t *font) +{ + _cairo_array_fini (&font->string_offsets); + free (font->widths); + free (font->base.ps_name); + free (font->base.font_name); + free (font->parent_to_subset); + free (font->glyphs); + _cairo_array_fini (&font->output); + free (font); +} + +static cairo_status_t +cairo_truetype_font_allocate_write_buffer (cairo_truetype_font_t *font, + size_t length, + unsigned char **buffer) +{ + cairo_status_t status; + + if (font->status) + return font->status; + + status = _cairo_array_allocate (&font->output, length, (void **) buffer); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + return CAIRO_STATUS_SUCCESS; +} + +static void +cairo_truetype_font_write (cairo_truetype_font_t *font, + const void *data, + size_t length) +{ + cairo_status_t status; + + if (font->status) + return; + + status = _cairo_array_append_multiple (&font->output, data, length); + if (unlikely (status)) + status = _cairo_truetype_font_set_error (font, status); +} + +static void +cairo_truetype_font_write_be16 (cairo_truetype_font_t *font, + uint16_t value) +{ + uint16_t be16_value; + + if (font->status) + return; + + be16_value = cpu_to_be16 (value); + cairo_truetype_font_write (font, &be16_value, sizeof be16_value); +} + +static void +cairo_truetype_font_write_be32 (cairo_truetype_font_t *font, + uint32_t value) +{ + uint32_t be32_value; + + if (font->status) + return; + + be32_value = cpu_to_be32 (value); + cairo_truetype_font_write (font, &be32_value, sizeof be32_value); +} + +static cairo_status_t +cairo_truetype_font_align_output (cairo_truetype_font_t *font, + unsigned long *aligned) +{ + int length, pad; + unsigned char *padding; + + length = _cairo_array_num_elements (&font->output); + *aligned = (length + 3) & ~3; + pad = *aligned - length; + + if (pad) { + cairo_status_t status; + + status = cairo_truetype_font_allocate_write_buffer (font, pad, + &padding); + if (unlikely (status)) + return status; + + memset (padding, 0, pad); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +cairo_truetype_font_check_boundary (cairo_truetype_font_t *font, + unsigned long boundary) +{ + cairo_status_t status; + + if (font->status) + return font->status; + + if (boundary - font->last_offset > SFNT_STRING_MAX_LENGTH) + { + status = _cairo_array_append (&font->string_offsets, + &font->last_boundary); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + font->last_offset = font->last_boundary; + } + font->last_boundary = boundary; + + return CAIRO_STATUS_SUCCESS; +} + +typedef struct _cmap_unicode_range { + unsigned int start; + unsigned int end; +} cmap_unicode_range_t; + +static cmap_unicode_range_t winansi_unicode_ranges[] = { + { 0x0020, 0x007f }, + { 0x00a0, 0x00ff }, + { 0x0152, 0x0153 }, + { 0x0160, 0x0161 }, + { 0x0178, 0x0178 }, + { 0x017d, 0x017e }, + { 0x0192, 0x0192 }, + { 0x02c6, 0x02c6 }, + { 0x02dc, 0x02dc }, + { 0x2013, 0x2026 }, + { 0x2030, 0x2030 }, + { 0x2039, 0x203a }, + { 0x20ac, 0x20ac }, + { 0x2122, 0x2122 }, +}; + +static cairo_status_t +cairo_truetype_font_write_cmap_table (cairo_truetype_font_t *font, + unsigned long tag) +{ + int i; + unsigned int j; + int range_offset; + int num_ranges; + int entry_selector; + int length; + + num_ranges = ARRAY_LENGTH (winansi_unicode_ranges); + + length = 16 + (num_ranges + 1)*8; + for (i = 0; i < num_ranges; i++) + length += (winansi_unicode_ranges[i].end - winansi_unicode_ranges[i].start + 1)*2; + + entry_selector = 0; + while ((1 << entry_selector) <= (num_ranges + 1)) + entry_selector++; + + entry_selector--; + + cairo_truetype_font_write_be16 (font, 0); /* Table version */ + cairo_truetype_font_write_be16 (font, 1); /* Num tables */ + + cairo_truetype_font_write_be16 (font, 3); /* Platform */ + cairo_truetype_font_write_be16 (font, 1); /* Encoding */ + cairo_truetype_font_write_be32 (font, 12); /* Offset to start of table */ + + /* Output a format 4 encoding table for the winansi encoding */ + + cairo_truetype_font_write_be16 (font, 4); /* Format */ + cairo_truetype_font_write_be16 (font, length); /* Length */ + cairo_truetype_font_write_be16 (font, 0); /* Version */ + cairo_truetype_font_write_be16 (font, num_ranges*2 + 2); /* 2*segcount */ + cairo_truetype_font_write_be16 (font, (1 << (entry_selector + 1))); /* searchrange */ + cairo_truetype_font_write_be16 (font, entry_selector); /* entry selector */ + cairo_truetype_font_write_be16 (font, num_ranges*2 + 2 - (1 << (entry_selector + 1))); /* rangeshift */ + for (i = 0; i < num_ranges; i++) + cairo_truetype_font_write_be16 (font, winansi_unicode_ranges[i].end); /* end count[] */ + cairo_truetype_font_write_be16 (font, 0xffff); /* end count[] */ + + cairo_truetype_font_write_be16 (font, 0); /* reserved */ + + for (i = 0; i < num_ranges; i++) + cairo_truetype_font_write_be16 (font, winansi_unicode_ranges[i].start); /* startCode[] */ + cairo_truetype_font_write_be16 (font, 0xffff); /* startCode[] */ + + for (i = 0; i < num_ranges; i++) + cairo_truetype_font_write_be16 (font, 0x0000); /* delta[] */ + cairo_truetype_font_write_be16 (font, 1); /* delta[] */ + + range_offset = num_ranges*2 + 2; + for (i = 0; i < num_ranges; i++) { + cairo_truetype_font_write_be16 (font, range_offset); /* rangeOffset[] */ + range_offset += (winansi_unicode_ranges[i].end - winansi_unicode_ranges[i].start + 1)*2 - 2; + } + cairo_truetype_font_write_be16 (font, 0); /* rangeOffset[] */ + + for (i = 0; i < num_ranges; i++) { + for (j = winansi_unicode_ranges[i].start; j < winansi_unicode_ranges[i].end + 1; j++) { + int ch = _cairo_unicode_to_winansi (j); + int glyph; + + if (ch > 0) + glyph = font->scaled_font_subset->latin_to_subset_glyph_index[ch]; + else + glyph = 0; + cairo_truetype_font_write_be16 (font, glyph); + } + } + + return font->status; +} + +static cairo_status_t +cairo_truetype_font_write_generic_table (cairo_truetype_font_t *font, + unsigned long tag) +{ + cairo_status_t status; + unsigned char *buffer; + unsigned long size; + + if (font->status) + return font->status; + + size = 0; + status = font->backend->load_truetype_table(font->scaled_font_subset->scaled_font, + tag, 0, NULL, &size); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + status = cairo_truetype_font_allocate_write_buffer (font, size, &buffer); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + status = font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + tag, 0, buffer, &size); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +cairo_truetype_font_remap_composite_glyph (cairo_truetype_font_t *font, + unsigned char *buffer, + unsigned long size) +{ + tt_glyph_data_t *glyph_data; + tt_composite_glyph_t *composite_glyph; + int num_args; + int has_more_components; + unsigned short flags; + unsigned short index; + cairo_status_t status; + unsigned char *end = buffer + size; + + if (font->status) + return font->status; + + glyph_data = (tt_glyph_data_t *) buffer; + if ((unsigned char *)(&glyph_data->data) >= end) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if ((int16_t)be16_to_cpu (glyph_data->num_contours) >= 0) + return CAIRO_STATUS_SUCCESS; + + composite_glyph = &glyph_data->glyph; + do { + if ((unsigned char *)(&composite_glyph->args[1]) > end) + return CAIRO_INT_STATUS_UNSUPPORTED; + + flags = be16_to_cpu (composite_glyph->flags); + has_more_components = flags & TT_MORE_COMPONENTS; + status = cairo_truetype_font_use_glyph (font, be16_to_cpu (composite_glyph->index), &index); + if (unlikely (status)) + return status; + + composite_glyph->index = cpu_to_be16 (index); + num_args = 1; + if (flags & TT_ARG_1_AND_2_ARE_WORDS) + num_args += 1; + + if (flags & TT_WE_HAVE_A_SCALE) + num_args += 1; + else if (flags & TT_WE_HAVE_AN_X_AND_Y_SCALE) + num_args += 2; + else if (flags & TT_WE_HAVE_A_TWO_BY_TWO) + num_args += 4; + + composite_glyph = (tt_composite_glyph_t *) &(composite_glyph->args[num_args]); + } while (has_more_components); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +cairo_truetype_font_write_glyf_table (cairo_truetype_font_t *font, + unsigned long tag) +{ + unsigned long start_offset, index, size, next; + tt_head_t header; + unsigned long begin, end; + unsigned char *buffer; + unsigned int i; + union { + unsigned char *bytes; + uint16_t *short_offsets; + uint32_t *long_offsets; + } u; + cairo_status_t status; + + if (font->status) + return font->status; + + size = sizeof (tt_head_t); + status = font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + TT_TAG_head, 0, + (unsigned char*) &header, &size); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + if (be16_to_cpu (header.index_to_loc_format) == 0) + size = sizeof (int16_t) * (font->base.num_glyphs_in_face + 1); + else + size = sizeof (int32_t) * (font->base.num_glyphs_in_face + 1); + + u.bytes = _cairo_malloc (size); + if (unlikely (u.bytes == NULL)) + return _cairo_truetype_font_set_error (font, CAIRO_STATUS_NO_MEMORY); + + status = font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + TT_TAG_loca, 0, u.bytes, &size); + if (unlikely (status)) { + free (u.bytes); + return _cairo_truetype_font_set_error (font, status); + } + + start_offset = _cairo_array_num_elements (&font->output); + for (i = 0; i < font->num_glyphs; i++) { + index = font->glyphs[i].parent_index; + if (be16_to_cpu (header.index_to_loc_format) == 0) { + begin = be16_to_cpu (u.short_offsets[index]) * 2; + end = be16_to_cpu (u.short_offsets[index + 1]) * 2; + } + else { + begin = be32_to_cpu (u.long_offsets[index]); + end = be32_to_cpu (u.long_offsets[index + 1]); + } + + /* quick sanity check... */ + if (end < begin) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto FAIL; + } + + size = end - begin; + status = cairo_truetype_font_align_output (font, &next); + if (unlikely (status)) + goto FAIL; + + status = cairo_truetype_font_check_boundary (font, next); + if (unlikely (status)) + goto FAIL; + + font->glyphs[i].location = next - start_offset; + + status = cairo_truetype_font_allocate_write_buffer (font, size, &buffer); + if (unlikely (status)) + goto FAIL; + + if (size > 1) { + tt_glyph_data_t *glyph_data; + int num_contours; + + status = font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + TT_TAG_glyf, begin, buffer, &size); + if (unlikely (status)) + goto FAIL; + + glyph_data = (tt_glyph_data_t *) buffer; + num_contours = (int16_t)be16_to_cpu (glyph_data->num_contours); + if (num_contours < 0) { + status = cairo_truetype_font_remap_composite_glyph (font, buffer, size); + if (unlikely (status)) + goto FAIL; + } else if (num_contours == 0) { + /* num_contours == 0 is undefined in the Opentype + * spec. There are some embedded fonts that have a + * space glyph with num_contours = 0 that fails on + * some printers. The spec requires glyphs without + * contours to have a 0 size glyph entry in the loca + * table. + * + * If num_contours == 0, truncate the glyph to 0 size. + */ + _cairo_array_truncate (&font->output, _cairo_array_num_elements (&font->output) - size); + } + } + } + + status = cairo_truetype_font_align_output (font, &next); + if (unlikely (status)) + goto FAIL; + + font->glyphs[i].location = next - start_offset; + + status = font->status; +FAIL: + free (u.bytes); + + return _cairo_truetype_font_set_error (font, status); +} + +static cairo_status_t +cairo_truetype_font_write_head_table (cairo_truetype_font_t *font, + unsigned long tag) +{ + unsigned char *buffer; + unsigned long size; + cairo_status_t status; + + if (font->status) + return font->status; + + size = 0; + status = font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + tag, 0, NULL, &size); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + font->checksum_index = _cairo_array_num_elements (&font->output) + 8; + status = cairo_truetype_font_allocate_write_buffer (font, size, &buffer); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + status = font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + tag, 0, buffer, &size); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + /* set checkSumAdjustment to 0 for table checksum calculation */ + *(uint32_t *)(buffer + 8) = 0; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +cairo_truetype_font_write_hhea_table (cairo_truetype_font_t *font, unsigned long tag) +{ + tt_hhea_t *hhea; + unsigned long size; + cairo_status_t status; + + if (font->status) + return font->status; + + size = sizeof (tt_hhea_t); + status = cairo_truetype_font_allocate_write_buffer (font, size, (unsigned char **) &hhea); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + status = font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + tag, 0, (unsigned char *) hhea, &size); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + hhea->num_hmetrics = cpu_to_be16 ((uint16_t)(font->num_glyphs)); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +cairo_truetype_font_write_hmtx_table (cairo_truetype_font_t *font, + unsigned long tag) +{ + unsigned long size; + unsigned long long_entry_size; + unsigned long short_entry_size; + short *p; + unsigned int i; + tt_hhea_t hhea; + int num_hmetrics; + cairo_status_t status; + + if (font->status) + return font->status; + + size = sizeof (tt_hhea_t); + status = font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + TT_TAG_hhea, 0, + (unsigned char*) &hhea, &size); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + num_hmetrics = be16_to_cpu(hhea.num_hmetrics); + + for (i = 0; i < font->num_glyphs; i++) { + long_entry_size = 2 * sizeof (int16_t); + short_entry_size = sizeof (int16_t); + status = cairo_truetype_font_allocate_write_buffer (font, + long_entry_size, + (unsigned char **) &p); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + if (font->glyphs[i].parent_index < num_hmetrics) { + status = font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + TT_TAG_hmtx, + font->glyphs[i].parent_index * long_entry_size, + (unsigned char *) p, &long_entry_size); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + } + else + { + status = font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + TT_TAG_hmtx, + (num_hmetrics - 1) * long_entry_size, + (unsigned char *) p, &short_entry_size); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + status = font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + TT_TAG_hmtx, + num_hmetrics * long_entry_size + + (font->glyphs[i].parent_index - num_hmetrics) * short_entry_size, + (unsigned char *) (p + 1), &short_entry_size); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + } + font->widths[i] = be16_to_cpu (p[0]); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +cairo_truetype_font_write_loca_table (cairo_truetype_font_t *font, + unsigned long tag) +{ + unsigned int i; + tt_head_t header; + unsigned long size; + cairo_status_t status; + + if (font->status) + return font->status; + + size = sizeof(tt_head_t); + status = font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + TT_TAG_head, 0, + (unsigned char*) &header, &size); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + if (be16_to_cpu (header.index_to_loc_format) == 0) + { + for (i = 0; i < font->num_glyphs + 1; i++) + cairo_truetype_font_write_be16 (font, font->glyphs[i].location / 2); + } else { + for (i = 0; i < font->num_glyphs + 1; i++) + cairo_truetype_font_write_be32 (font, font->glyphs[i].location); + } + + return font->status; +} + +static cairo_status_t +cairo_truetype_font_write_maxp_table (cairo_truetype_font_t *font, + unsigned long tag) +{ + tt_maxp_t *maxp; + unsigned long size; + cairo_status_t status; + + if (font->status) + return font->status; + + size = sizeof (tt_maxp_t); + status = cairo_truetype_font_allocate_write_buffer (font, size, (unsigned char **) &maxp); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + status = font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + tag, 0, (unsigned char *) maxp, &size); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + maxp->num_glyphs = cpu_to_be16 (font->num_glyphs); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +cairo_truetype_font_write_offset_table (cairo_truetype_font_t *font) +{ + cairo_status_t status; + unsigned char *table_buffer; + size_t table_buffer_length; + unsigned short search_range, entry_selector, range_shift; + + if (font->status) + return font->status; + + search_range = 1; + entry_selector = 0; + while (search_range * 2 <= font->num_tables) { + search_range *= 2; + entry_selector++; + } + search_range *= 16; + range_shift = font->num_tables * 16 - search_range; + + cairo_truetype_font_write_be32 (font, SFNT_VERSION); + cairo_truetype_font_write_be16 (font, font->num_tables); + cairo_truetype_font_write_be16 (font, search_range); + cairo_truetype_font_write_be16 (font, entry_selector); + cairo_truetype_font_write_be16 (font, range_shift); + + /* Allocate space for the table directory. Each directory entry + * will be filled in by cairo_truetype_font_update_entry() after + * the table is written. */ + table_buffer_length = font->num_tables * 16; + status = cairo_truetype_font_allocate_write_buffer (font, table_buffer_length, + &table_buffer); + if (unlikely (status)) + return _cairo_truetype_font_set_error (font, status); + + return CAIRO_STATUS_SUCCESS; +} + +static uint32_t +cairo_truetype_font_calculate_checksum (cairo_truetype_font_t *font, + unsigned long start, + unsigned long end) +{ + uint32_t *padded_end; + uint32_t *p; + uint32_t checksum; + char *data; + + checksum = 0; + data = _cairo_array_index (&font->output, 0); + p = (uint32_t *) (data + start); + padded_end = (uint32_t *) (data + ((end + 3) & ~3)); + while (p < padded_end) + checksum += be32_to_cpu(*p++); + + return checksum; +} + +static void +cairo_truetype_font_update_entry (cairo_truetype_font_t *font, + int index, + unsigned long tag, + unsigned long start, + unsigned long end) +{ + uint32_t *entry; + + entry = _cairo_array_index (&font->output, 12 + 16 * index); + entry[0] = cpu_to_be32 ((uint32_t)tag); + entry[1] = cpu_to_be32 (cairo_truetype_font_calculate_checksum (font, start, end)); + entry[2] = cpu_to_be32 ((uint32_t)start); + entry[3] = cpu_to_be32 ((uint32_t)(end - start)); +} + +static cairo_status_t +cairo_truetype_font_generate (cairo_truetype_font_t *font, + const char **data, + unsigned long *length, + const unsigned long **string_offsets, + unsigned long *num_strings) +{ + cairo_status_t status; + unsigned long start, end, next; + uint32_t checksum, *checksum_location; + int i; + + if (font->status) + return font->status; + + status = cairo_truetype_font_write_offset_table (font); + if (unlikely (status)) + goto FAIL; + + status = cairo_truetype_font_align_output (font, &start); + if (unlikely (status)) + goto FAIL; + + end = 0; + for (i = 0; i < font->num_tables; i++) { + status = font->truetype_tables[i].write (font, font->truetype_tables[i].tag); + if (unlikely (status)) + goto FAIL; + + end = _cairo_array_num_elements (&font->output); + status = cairo_truetype_font_align_output (font, &next); + if (unlikely (status)) + goto FAIL; + + cairo_truetype_font_update_entry (font, font->truetype_tables[i].pos, + font->truetype_tables[i].tag, start, end); + status = cairo_truetype_font_check_boundary (font, next); + if (unlikely (status)) + goto FAIL; + + start = next; + } + + checksum = + 0xb1b0afba - cairo_truetype_font_calculate_checksum (font, 0, end); + checksum_location = _cairo_array_index (&font->output, font->checksum_index); + *checksum_location = cpu_to_be32 (checksum); + + *data = _cairo_array_index (&font->output, 0); + *length = _cairo_array_num_elements (&font->output); + *num_strings = _cairo_array_num_elements (&font->string_offsets); + if (*num_strings != 0) + *string_offsets = _cairo_array_index (&font->string_offsets, 0); + else + *string_offsets = NULL; + + FAIL: + return _cairo_truetype_font_set_error (font, status); +} + +static cairo_status_t +cairo_truetype_font_use_glyph (cairo_truetype_font_t *font, + unsigned short glyph, + unsigned short *out) +{ + if (glyph >= font->base.num_glyphs_in_face) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (font->parent_to_subset[glyph] == 0) { + font->parent_to_subset[glyph] = font->num_glyphs; + font->glyphs[font->num_glyphs].parent_index = glyph; + font->num_glyphs++; + } + + *out = font->parent_to_subset[glyph]; + return CAIRO_STATUS_SUCCESS; +} + +static void +cairo_truetype_font_add_truetype_table (cairo_truetype_font_t *font, + unsigned long tag, + cairo_status_t (*write) (cairo_truetype_font_t *font, unsigned long tag), + int pos) +{ + font->truetype_tables[font->num_tables].tag = tag; + font->truetype_tables[font->num_tables].write = write; + font->truetype_tables[font->num_tables].pos = pos; + font->num_tables++; +} + +/* cairo_truetype_font_create_truetype_table_list() builds the list of + * truetype tables to be embedded in the subsetted font. Each call to + * cairo_truetype_font_add_truetype_table() adds a table, the callback + * for generating the table, and the position in the table directory + * to the truetype_tables array. + * + * As we write out the glyf table we remap composite glyphs. + * Remapping composite glyphs will reference the sub glyphs the + * composite glyph is made up of. The "glyf" table callback needs to + * be called first so we have all the glyphs in the subset before + * going further. + * + * The order in which tables are added to the truetype_table array + * using cairo_truetype_font_add_truetype_table() specifies the order + * in which the callback functions will be called. + * + * The tables in the table directory must be listed in alphabetical + * order. The "cvt", "fpgm", and "prep" are optional tables. They + * will only be embedded in the subset if they exist in the source + * font. "cmap" is only embedded for latin fonts. The pos parameter of + * cairo_truetype_font_add_truetype_table() specifies the position of + * the table in the table directory. + */ +static void +cairo_truetype_font_create_truetype_table_list (cairo_truetype_font_t *font) +{ + cairo_bool_t has_cvt = FALSE; + cairo_bool_t has_fpgm = FALSE; + cairo_bool_t has_prep = FALSE; + unsigned long size; + int pos; + + size = 0; + if (font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + TT_TAG_cvt, 0, NULL, + &size) == CAIRO_INT_STATUS_SUCCESS) + has_cvt = TRUE; + + size = 0; + if (font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + TT_TAG_fpgm, 0, NULL, + &size) == CAIRO_INT_STATUS_SUCCESS) + has_fpgm = TRUE; + + size = 0; + if (font->backend->load_truetype_table (font->scaled_font_subset->scaled_font, + TT_TAG_prep, 0, NULL, + &size) == CAIRO_INT_STATUS_SUCCESS) + has_prep = TRUE; + + font->num_tables = 0; + pos = 0; + if (font->is_pdf && font->scaled_font_subset->is_latin) + pos++; + if (has_cvt) + pos++; + if (has_fpgm) + pos++; + cairo_truetype_font_add_truetype_table (font, TT_TAG_glyf, cairo_truetype_font_write_glyf_table, pos); + + pos = 0; + if (font->is_pdf && font->scaled_font_subset->is_latin) + cairo_truetype_font_add_truetype_table (font, TT_TAG_cmap, cairo_truetype_font_write_cmap_table, pos++); + if (has_cvt) + cairo_truetype_font_add_truetype_table (font, TT_TAG_cvt, cairo_truetype_font_write_generic_table, pos++); + if (has_fpgm) + cairo_truetype_font_add_truetype_table (font, TT_TAG_fpgm, cairo_truetype_font_write_generic_table, pos++); + pos++; + cairo_truetype_font_add_truetype_table (font, TT_TAG_head, cairo_truetype_font_write_head_table, pos++); + cairo_truetype_font_add_truetype_table (font, TT_TAG_hhea, cairo_truetype_font_write_hhea_table, pos++); + cairo_truetype_font_add_truetype_table (font, TT_TAG_hmtx, cairo_truetype_font_write_hmtx_table, pos++); + cairo_truetype_font_add_truetype_table (font, TT_TAG_loca, cairo_truetype_font_write_loca_table, pos++); + cairo_truetype_font_add_truetype_table (font, TT_TAG_maxp, cairo_truetype_font_write_maxp_table, pos++); + if (has_prep) + cairo_truetype_font_add_truetype_table (font, TT_TAG_prep, cairo_truetype_font_write_generic_table, pos); +} + +static cairo_status_t +cairo_truetype_subset_init_internal (cairo_truetype_subset_t *truetype_subset, + cairo_scaled_font_subset_t *font_subset, + cairo_bool_t is_pdf) +{ + cairo_truetype_font_t *font = NULL; + cairo_status_t status; + const char *data = NULL; /* squelch bogus compiler warning */ + unsigned long length = 0; /* squelch bogus compiler warning */ + unsigned long offsets_length; + unsigned int i; + const unsigned long *string_offsets = NULL; + unsigned long num_strings = 0; + + status = _cairo_truetype_font_create (font_subset, is_pdf, &font); + if (unlikely (status)) + return status; + + for (i = 0; i < font->scaled_font_subset->num_glyphs; i++) { + unsigned short parent_glyph = font->scaled_font_subset->glyphs[i]; + status = cairo_truetype_font_use_glyph (font, parent_glyph, &parent_glyph); + if (unlikely (status)) + goto fail1; + } + + cairo_truetype_font_create_truetype_table_list (font); + status = cairo_truetype_font_generate (font, &data, &length, + &string_offsets, &num_strings); + if (unlikely (status)) + goto fail1; + + truetype_subset->ps_name = strdup (font->base.ps_name); + if (unlikely (truetype_subset->ps_name == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail1; + } + + if (font->base.font_name != NULL) { + truetype_subset->family_name_utf8 = strdup (font->base.font_name); + if (unlikely (truetype_subset->family_name_utf8 == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail2; + } + } else { + truetype_subset->family_name_utf8 = NULL; + } + + /* The widths array returned must contain only widths for the + * glyphs in font_subset. Any subglyphs appended after + * font_subset->num_glyphs are omitted. */ + truetype_subset->widths = _cairo_calloc_ab (font->scaled_font_subset->num_glyphs, + sizeof (double)); + if (unlikely (truetype_subset->widths == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail3; + } + for (i = 0; i < font->scaled_font_subset->num_glyphs; i++) + truetype_subset->widths[i] = (double)font->widths[i]/font->base.units_per_em; + + truetype_subset->x_min = (double)font->base.x_min/font->base.units_per_em; + truetype_subset->y_min = (double)font->base.y_min/font->base.units_per_em; + truetype_subset->x_max = (double)font->base.x_max/font->base.units_per_em; + truetype_subset->y_max = (double)font->base.y_max/font->base.units_per_em; + truetype_subset->ascent = (double)font->base.ascent/font->base.units_per_em; + truetype_subset->descent = (double)font->base.descent/font->base.units_per_em; + + if (length) { + truetype_subset->data = _cairo_malloc (length); + if (unlikely (truetype_subset->data == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail4; + } + + memcpy (truetype_subset->data, data, length); + } else + truetype_subset->data = NULL; + truetype_subset->data_length = length; + + if (num_strings) { + offsets_length = num_strings * sizeof (unsigned long); + truetype_subset->string_offsets = _cairo_malloc (offsets_length); + if (unlikely (truetype_subset->string_offsets == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail5; + } + + memcpy (truetype_subset->string_offsets, string_offsets, offsets_length); + truetype_subset->num_string_offsets = num_strings; + } else { + truetype_subset->string_offsets = NULL; + truetype_subset->num_string_offsets = 0; + } + + cairo_truetype_font_destroy (font); + + return CAIRO_STATUS_SUCCESS; + + fail5: + free (truetype_subset->data); + fail4: + free (truetype_subset->widths); + fail3: + free (truetype_subset->family_name_utf8); + fail2: + free (truetype_subset->ps_name); + fail1: + cairo_truetype_font_destroy (font); + + return status; +} + +cairo_status_t +_cairo_truetype_subset_init_ps (cairo_truetype_subset_t *truetype_subset, + cairo_scaled_font_subset_t *font_subset) +{ + return cairo_truetype_subset_init_internal (truetype_subset, font_subset, FALSE); +} + +cairo_status_t +_cairo_truetype_subset_init_pdf (cairo_truetype_subset_t *truetype_subset, + cairo_scaled_font_subset_t *font_subset) +{ + return cairo_truetype_subset_init_internal (truetype_subset, font_subset, TRUE); +} + +void +_cairo_truetype_subset_fini (cairo_truetype_subset_t *subset) +{ + free (subset->ps_name); + free (subset->family_name_utf8); + free (subset->widths); + free (subset->data); + free (subset->string_offsets); +} + +static cairo_int_status_t +_cairo_truetype_reverse_cmap (cairo_scaled_font_t *scaled_font, + unsigned long table_offset, + unsigned long index, + uint32_t *ucs4) +{ + cairo_status_t status; + const cairo_scaled_font_backend_t *backend; + tt_segment_map_t *map; + tt_segment_map_t map_header; + unsigned int num_segments, i; + unsigned long size; + uint16_t *start_code; + uint16_t *end_code; + uint16_t *delta; + uint16_t *range_offset; + uint16_t c; + + backend = scaled_font->backend; + size = 4; /* enough to read the two header fields we need */ + status = backend->load_truetype_table (scaled_font, + TT_TAG_cmap, table_offset, + (unsigned char *) &map_header, + &size); + if (unlikely (status)) + return status; + + /* All table formats have the same first two words */ + if (be16_to_cpu (map_header.format) != 4) + return CAIRO_INT_STATUS_UNSUPPORTED; + + size = be16_to_cpu (map_header.length); + /* minimum table size is 24 bytes */ + if (size < 24) + return CAIRO_INT_STATUS_UNSUPPORTED; + + map = _cairo_malloc (size); + if (unlikely (map == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = backend->load_truetype_table (scaled_font, + TT_TAG_cmap, table_offset, + (unsigned char *) map, + &size); + if (unlikely (status)) + goto fail; + + num_segments = be16_to_cpu (map->segCountX2)/2; + + /* A Format 4 cmap contains 8 uint16_t numbers and 4 arrays of + * uint16_t each num_segments long. */ + if (size < (8 + 4*num_segments)*sizeof(uint16_t)) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto fail; + } + + end_code = map->endCount; + start_code = &(end_code[num_segments + 1]); + delta = &(start_code[num_segments]); + range_offset = &(delta[num_segments]); + + /* search for glyph in segments with rangeOffset=0 */ + for (i = 0; i < num_segments; i++) { + uint16_t start = be16_to_cpu (start_code[i]); + uint16_t end = be16_to_cpu (end_code[i]); + + if (start == 0xffff && end == 0xffff) + break; + + c = index - be16_to_cpu (delta[i]); + if (range_offset[i] == 0 && c >= start && c <= end) { + *ucs4 = c; + goto found; + } + } + + /* search for glyph in segments with rangeOffset=1 */ + for (i = 0; i < num_segments; i++) { + uint16_t start = be16_to_cpu (start_code[i]); + uint16_t end = be16_to_cpu (end_code[i]); + + if (start == 0xffff && end == 0xffff) + break; + + if (range_offset[i] != 0) { + uint16_t *glyph_ids = &range_offset[i] + be16_to_cpu (range_offset[i])/2; + int range_size = end - start + 1; + uint16_t g_id_be = cpu_to_be16 (index); + int j; + + if (range_size > 0) { + if ((char*)glyph_ids + 2*range_size > (char*)map + size) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto fail; + } + + for (j = 0; j < range_size; j++) { + if (glyph_ids[j] == g_id_be) { + *ucs4 = start + j; + goto found; + } + } + } + } + } + + /* glyph not found */ + *ucs4 = -1; + +found: + status = CAIRO_STATUS_SUCCESS; + +fail: + free (map); + + return status; +} + +cairo_int_status_t +_cairo_truetype_index_to_ucs4 (cairo_scaled_font_t *scaled_font, + unsigned long index, + uint32_t *ucs4) +{ + cairo_int_status_t status = CAIRO_INT_STATUS_UNSUPPORTED; + const cairo_scaled_font_backend_t *backend; + tt_cmap_t *cmap; + tt_cmap_t cmap_header; + int num_tables, i; + unsigned long size; + + backend = scaled_font->backend; + if (!backend->load_truetype_table) + return CAIRO_INT_STATUS_UNSUPPORTED; + + size = 4; /* only read the header fields 'version' and 'num_tables' */ + status = backend->load_truetype_table (scaled_font, + TT_TAG_cmap, 0, + (unsigned char *) &cmap_header, + &size); + if (unlikely (status)) + return status; + + num_tables = be16_to_cpu (cmap_header.num_tables); + size = 4 + num_tables * sizeof (tt_cmap_index_t); + cmap = _cairo_malloc_ab_plus_c (num_tables, sizeof (tt_cmap_index_t), 4); + if (unlikely (cmap == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = backend->load_truetype_table (scaled_font, + TT_TAG_cmap, 0, + (unsigned char *) cmap, + &size); + if (unlikely (status)) + goto cleanup; + + /* Find a table with Unicode mapping */ + for (i = 0; i < num_tables; i++) { + if (be16_to_cpu (cmap->index[i].platform) == 3 && + be16_to_cpu (cmap->index[i].encoding) == 1) { + status = _cairo_truetype_reverse_cmap (scaled_font, + be32_to_cpu (cmap->index[i].offset), + index, + ucs4); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + break; + } + } + +cleanup: + free (cmap); + + return status; +} + +/* + * Sanity check on font name length as some broken fonts may return very long + * strings of garbage. 127 is maximum length of a PS name. + */ +#define MAX_FONT_NAME_LENGTH 127 + +static cairo_status_t +find_name (tt_name_t *name, unsigned long size, int name_id, int platform, int encoding, int language, char **str_out) +{ + tt_name_record_t *record; + unsigned int i, len; + char *str; + char *p; + cairo_bool_t has_tag; + cairo_status_t status; + + str = NULL; + for (i = 0; i < MIN(be16_to_cpu (name->num_records), size / sizeof(name->records[0])); i++) { + record = &(name->records[i]); + if (be16_to_cpu (record->name) == name_id && + be16_to_cpu (record->platform) == platform && + be16_to_cpu (record->encoding) == encoding && + (language == -1 || be16_to_cpu (record->language) == language)) { + + len = be16_to_cpu (record->length); + if (platform == 3 && len > MAX_FONT_NAME_LENGTH*2) /* UTF-16 name */ + break; + + if (len > MAX_FONT_NAME_LENGTH) + break; + + uint16_t offset = be16_to_cpu (name->strings_offset) + be16_to_cpu (record->offset); + if (offset + len > size) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + str = _cairo_malloc (len + 1); + if (str == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memcpy (str, + ((char*)name) + offset, + len); + str[len] = 0; + break; + } + } + if (str == NULL) { + *str_out = NULL; + return CAIRO_STATUS_SUCCESS; + } + + if (platform == 3) { /* Win platform, unicode encoding */ + /* convert to utf8 */ + int size = 0; + char *utf8; + uint16_t *u = (uint16_t *) str; + unsigned int u_len = len/2; + + for (i = 0; i < u_len; i++) + size += _cairo_ucs4_to_utf8 (be16_to_cpu(u[i]), NULL); + + utf8 = _cairo_malloc (size + 1); + if (utf8 == NULL) { + status =_cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail; + } + p = utf8; + for (i = 0; i < u_len; i++) + p += _cairo_ucs4_to_utf8 (be16_to_cpu(u[i]), p); + *p = 0; + free (str); + str = utf8; + } else if (platform == 1) { /* Mac platform, Mac Roman encoding */ + /* Replace characters above 127 with underscores. We could use + * a lookup table to convert to unicode but since most fonts + * include a unicode name this is just a rarely used fallback. */ + for (i = 0; i < len; i++) { + if ((unsigned char)str[i] > 127) + str[i] = '_'; + } + } + + /* If font name is prefixed with a PDF subset tag, strip it off. */ + p = str; + len = strlen (str); + has_tag = FALSE; + if (len > 7 && p[6] == '+') { + has_tag = TRUE; + for (i = 0; i < 6; i++) { + if (p[i] < 'A' || p[i] > 'Z') { + has_tag = FALSE; + break; + } + } + } + if (has_tag) { + p = _cairo_strndup (str + 7, len - 7); + free (str); + str = p; + } + + *str_out = str; + + return CAIRO_STATUS_SUCCESS; + + fail: + free (str); + + return status; +} + +cairo_int_status_t +_cairo_truetype_read_font_name (cairo_scaled_font_t *scaled_font, + char **ps_name_out, + char **font_name_out) +{ + cairo_status_t status; + const cairo_scaled_font_backend_t *backend; + tt_name_t *name; + unsigned long size; + char *ps_name = NULL; + char *family_name = NULL; + + backend = scaled_font->backend; + if (!backend->load_truetype_table) + return CAIRO_INT_STATUS_UNSUPPORTED; + + size = 0; + status = backend->load_truetype_table (scaled_font, + TT_TAG_name, 0, + NULL, + &size); + if (status) + return status; + + name = _cairo_malloc (size); + if (name == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = backend->load_truetype_table (scaled_font, + TT_TAG_name, 0, + (unsigned char *) name, + &size); + if (status) + goto fail; + + /* Find PS Name (name_id = 6). OT spec says PS name must be one of + * the following two encodings */ + status = find_name (name, size, 6, 3, 1, 0x409, &ps_name); /* win, unicode, english-us */ + if (unlikely(status)) + goto fail; + + if (!ps_name) { + status = find_name (name, size, 6, 1, 0, 0, &ps_name); /* mac, roman, english */ + if (unlikely(status)) + goto fail; + } + + /* Find Family name (name_id = 1) */ + status = find_name (name, size, 1, 3, 1, 0x409, &family_name); /* win, unicode, english-us */ + if (unlikely(status)) + goto fail; + + if (!family_name) { + status = find_name (name, size, 1, 3, 0, 0x409, &family_name); /* win, symbol, english-us */ + if (unlikely(status)) + goto fail; + } + + if (!family_name) { + status = find_name (name, size, 1, 1, 0, 0, &family_name); /* mac, roman, english */ + if (unlikely(status)) + goto fail; + } + + if (!family_name) { + status = find_name (name, size, 1, 3, 1, -1, &family_name); /* win, unicode, any language */ + if (unlikely(status)) + goto fail; + } + + status = _cairo_escape_ps_name (&ps_name); + if (unlikely(status)) + goto fail; + + free (name); + + *ps_name_out = ps_name; + *font_name_out = family_name; + + return CAIRO_STATUS_SUCCESS; + +fail: + free (name); + free (ps_name); + free (family_name); + *ps_name_out = NULL; + *font_name_out = NULL; + + return status; +} + +cairo_int_status_t +_cairo_truetype_get_style (cairo_scaled_font_t *scaled_font, + int *weight, + cairo_bool_t *bold, + cairo_bool_t *italic) +{ + cairo_status_t status; + const cairo_scaled_font_backend_t *backend; + tt_os2_t os2; + unsigned long size; + uint16_t selection; + + backend = scaled_font->backend; + if (!backend->load_truetype_table) + return CAIRO_INT_STATUS_UNSUPPORTED; + + size = 0; + status = backend->load_truetype_table (scaled_font, + TT_TAG_OS2, 0, + NULL, + &size); + if (status) + return status; + + if (size < sizeof(os2)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + size = sizeof (os2); + status = backend->load_truetype_table (scaled_font, + TT_TAG_OS2, 0, + (unsigned char *) &os2, + &size); + if (status) + return status; + + *weight = be16_to_cpu (os2.usWeightClass); + selection = be16_to_cpu (os2.fsSelection); + *bold = (selection & TT_FS_SELECTION_BOLD) ? TRUE : FALSE; + *italic = (selection & TT_FS_SELECTION_ITALIC) ? TRUE : FALSE; + + return CAIRO_STATUS_SUCCESS; +} + +#endif /* CAIRO_HAS_FONT_SUBSET */ diff --git a/local/recipes/libs/cairo/source/src/cairo-type1-fallback.c b/local/recipes/libs/cairo/source/src/cairo-type1-fallback.c new file mode 100644 index 0000000000..d0bbc62f0f --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-type1-fallback.c @@ -0,0 +1,908 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Adrian Johnson + */ + +#define _DEFAULT_SOURCE /* for snprintf(), strdup() */ +#include "cairoint.h" + +#include "cairo-array-private.h" +#include "cairo-error-private.h" + +#if CAIRO_HAS_FONT_SUBSET + +#include "cairo-type1-private.h" +#include "cairo-scaled-font-subsets-private.h" +#include "cairo-path-fixed-private.h" +#include "cairo-output-stream-private.h" + +typedef enum { + CAIRO_CHARSTRING_TYPE1, + CAIRO_CHARSTRING_TYPE2 +} cairo_charstring_type_t; + +typedef struct _cairo_type1_font { + int *widths; + + cairo_scaled_font_subset_t *scaled_font_subset; + cairo_scaled_font_t *type1_scaled_font; + + cairo_array_t contents; + + double x_min, y_min, x_max, y_max; + + const char *data; + unsigned long header_size; + unsigned long data_size; + unsigned long trailer_size; + int bbox_position; + int bbox_max_chars; + + cairo_output_stream_t *output; + + unsigned short eexec_key; + cairo_bool_t hex_encode; + int hex_column; +} cairo_type1_font_t; + +static cairo_status_t +cairo_type1_font_create (cairo_scaled_font_subset_t *scaled_font_subset, + cairo_type1_font_t **subset_return, + cairo_bool_t hex_encode) +{ + cairo_type1_font_t *font; + cairo_font_face_t *font_face; + cairo_matrix_t font_matrix; + cairo_matrix_t ctm; + cairo_font_options_t font_options; + cairo_status_t status; + + font = _cairo_calloc (sizeof (cairo_type1_font_t)); + if (unlikely (font == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + font->widths = _cairo_calloc_ab (scaled_font_subset->num_glyphs, sizeof (int)); + if (unlikely (font->widths == NULL)) { + free (font); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + font->scaled_font_subset = scaled_font_subset; + font->hex_encode = hex_encode; + + font_face = cairo_scaled_font_get_font_face (scaled_font_subset->scaled_font); + + cairo_matrix_init_scale (&font_matrix, 1000, -1000); + cairo_matrix_init_identity (&ctm); + + _cairo_font_options_init_default (&font_options); + cairo_scaled_font_get_font_options (scaled_font_subset->scaled_font, &font_options); + cairo_font_options_set_hint_style (&font_options, CAIRO_HINT_STYLE_NONE); + cairo_font_options_set_hint_metrics (&font_options, CAIRO_HINT_METRICS_OFF); + + font->type1_scaled_font = cairo_scaled_font_create (font_face, + &font_matrix, + &ctm, + &font_options); + status = font->type1_scaled_font->status; + if (unlikely (status)) + goto fail; + + _cairo_array_init (&font->contents, sizeof (unsigned char)); + font->output = NULL; + + *subset_return = font; + + return CAIRO_STATUS_SUCCESS; + +fail: + free (font->widths); + free (font); + + return status; +} + +/* Charstring commands. If the high byte is 0 the command is encoded + * with a single byte. */ +#define CHARSTRING_sbw 0x0c07 +#define CHARSTRING_rmoveto 0x0015 +#define CHARSTRING_rlineto 0x0005 +#define CHARSTRING_rcurveto 0x0008 +#define CHARSTRING_closepath 0x0009 +#define CHARSTRING_endchar 0x000e + +/* Before calling this function, the caller must allocate sufficient + * space in data (see _cairo_array_grow_by). The maximum number of + * bytes that will be used is 2. + */ +static void +charstring_encode_command (cairo_array_t *data, int command) +{ + cairo_status_t status; + unsigned int orig_size; + unsigned char buf[5]; + unsigned char *p = buf; + + if (command & 0xff00) + *p++ = command >> 8; + *p++ = command & 0x00ff; + + /* Ensure the array doesn't grow, which allows this function to + * have no possibility of failure. */ + orig_size = _cairo_array_size (data); + status = _cairo_array_append_multiple (data, buf, p - buf); + + assert (status == CAIRO_STATUS_SUCCESS); + assert (_cairo_array_size (data) == orig_size); +} + +/* Before calling this function, the caller must allocate sufficient + * space in data (see _cairo_array_grow_by). The maximum number of + * bytes that will be used is 5. + */ +static void +charstring_encode_integer (cairo_array_t *data, + int i, + cairo_charstring_type_t type) +{ + cairo_status_t status; + unsigned int orig_size; + unsigned char buf[10]; + unsigned char *p = buf; + + if (i >= -107 && i <= 107) { + *p++ = i + 139; + } else if (i >= 108 && i <= 1131) { + i -= 108; + *p++ = (i >> 8)+ 247; + *p++ = i & 0xff; + } else if (i >= -1131 && i <= -108) { + i = -i - 108; + *p++ = (i >> 8)+ 251; + *p++ = i & 0xff; + } else { + if (type == CAIRO_CHARSTRING_TYPE1) { + *p++ = 0xff; + *p++ = i >> 24; + *p++ = (i >> 16) & 0xff; + *p++ = (i >> 8) & 0xff; + *p++ = i & 0xff; + } else { + *p++ = 0xff; + *p++ = (i >> 8) & 0xff; + *p++ = i & 0xff; + *p++ = 0; + *p++ = 0; + } + } + + /* Ensure the array doesn't grow, which allows this function to + * have no possibility of failure. */ + orig_size = _cairo_array_size (data); + status = _cairo_array_append_multiple (data, buf, p - buf); + + assert (status == CAIRO_STATUS_SUCCESS); + assert (_cairo_array_size (data) == orig_size); +} + +typedef struct _ps_path_info { + cairo_array_t *data; + int current_x, current_y; + cairo_charstring_type_t type; +} t1_path_info_t; + +static cairo_status_t +_charstring_move_to (void *closure, + const cairo_point_t *point) +{ + t1_path_info_t *path_info = (t1_path_info_t *) closure; + int dx, dy; + cairo_status_t status; + + status = _cairo_array_grow_by (path_info->data, 12); + if (unlikely (status)) + return status; + + dx = _cairo_fixed_integer_part (point->x) - path_info->current_x; + dy = _cairo_fixed_integer_part (point->y) - path_info->current_y; + charstring_encode_integer (path_info->data, dx, path_info->type); + charstring_encode_integer (path_info->data, dy, path_info->type); + path_info->current_x += dx; + path_info->current_y += dy; + + charstring_encode_command (path_info->data, CHARSTRING_rmoveto); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_charstring_line_to (void *closure, + const cairo_point_t *point) +{ + t1_path_info_t *path_info = (t1_path_info_t *) closure; + int dx, dy; + cairo_status_t status; + + status = _cairo_array_grow_by (path_info->data, 12); + if (unlikely (status)) + return status; + + dx = _cairo_fixed_integer_part (point->x) - path_info->current_x; + dy = _cairo_fixed_integer_part (point->y) - path_info->current_y; + charstring_encode_integer (path_info->data, dx, path_info->type); + charstring_encode_integer (path_info->data, dy, path_info->type); + path_info->current_x += dx; + path_info->current_y += dy; + + charstring_encode_command (path_info->data, CHARSTRING_rlineto); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_charstring_curve_to (void *closure, + const cairo_point_t *point1, + const cairo_point_t *point2, + const cairo_point_t *point3) +{ + t1_path_info_t *path_info = (t1_path_info_t *) closure; + int dx1, dy1, dx2, dy2, dx3, dy3; + cairo_status_t status; + + status = _cairo_array_grow_by (path_info->data, 32); + if (unlikely (status)) + return status; + + dx1 = _cairo_fixed_integer_part (point1->x) - path_info->current_x; + dy1 = _cairo_fixed_integer_part (point1->y) - path_info->current_y; + dx2 = _cairo_fixed_integer_part (point2->x) - path_info->current_x - dx1; + dy2 = _cairo_fixed_integer_part (point2->y) - path_info->current_y - dy1; + dx3 = _cairo_fixed_integer_part (point3->x) - path_info->current_x - dx1 - dx2; + dy3 = _cairo_fixed_integer_part (point3->y) - path_info->current_y - dy1 - dy2; + charstring_encode_integer (path_info->data, dx1, path_info->type); + charstring_encode_integer (path_info->data, dy1, path_info->type); + charstring_encode_integer (path_info->data, dx2, path_info->type); + charstring_encode_integer (path_info->data, dy2, path_info->type); + charstring_encode_integer (path_info->data, dx3, path_info->type); + charstring_encode_integer (path_info->data, dy3, path_info->type); + path_info->current_x += dx1 + dx2 + dx3; + path_info->current_y += dy1 + dy2 + dy3; + charstring_encode_command (path_info->data, CHARSTRING_rcurveto); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_charstring_close_path (void *closure) +{ + cairo_status_t status; + t1_path_info_t *path_info = (t1_path_info_t *) closure; + + if (path_info->type == CAIRO_CHARSTRING_TYPE2) + return CAIRO_STATUS_SUCCESS; + + status = _cairo_array_grow_by (path_info->data, 2); + if (unlikely (status)) + return status; + + charstring_encode_command (path_info->data, CHARSTRING_closepath); + + return CAIRO_STATUS_SUCCESS; +} + +static void +charstring_encrypt (cairo_array_t *data) +{ + unsigned char *d, *end; + uint16_t c, p, r; + + r = CAIRO_TYPE1_CHARSTRING_KEY; + d = (unsigned char *) _cairo_array_index (data, 0); + end = d + _cairo_array_num_elements (data); + while (d < end) { + p = *d; + c = p ^ (r >> 8); + r = (c + r) * CAIRO_TYPE1_ENCRYPT_C1 + CAIRO_TYPE1_ENCRYPT_C2; + *d++ = c; + } +} + +static cairo_int_status_t +cairo_type1_font_create_charstring (cairo_type1_font_t *font, + int subset_index, + int glyph_index, + cairo_charstring_type_t type, + cairo_array_t *data) +{ + cairo_int_status_t status; + cairo_scaled_glyph_t *scaled_glyph; + t1_path_info_t path_info; + cairo_text_extents_t *metrics; + cairo_bool_t emit_path = TRUE; + + /* This call may return CAIRO_INT_STATUS_UNSUPPORTED for bitmap fonts. */ + status = _cairo_scaled_glyph_lookup (font->type1_scaled_font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_METRICS| + CAIRO_SCALED_GLYPH_INFO_PATH, + NULL, /* foreground color */ + &scaled_glyph); + + /* It is ok for the .notdef glyph to not have a path available. We + * just need the metrics to emit an empty glyph. */ + if (glyph_index == 0 && status == CAIRO_INT_STATUS_UNSUPPORTED) { + emit_path = FALSE; + status = _cairo_scaled_glyph_lookup (font->type1_scaled_font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_METRICS, + NULL, /* foreground color */ + &scaled_glyph); + } + if (unlikely (status)) + return status; + + metrics = &scaled_glyph->metrics; + if (subset_index == 0) { + font->x_min = metrics->x_bearing; + font->y_min = metrics->y_bearing; + font->x_max = metrics->x_bearing + metrics->width; + font->y_max = metrics->y_bearing + metrics->height; + } else { + if (metrics->x_bearing < font->x_min) + font->x_min = metrics->x_bearing; + if (metrics->y_bearing < font->y_min) + font->y_min = metrics->y_bearing; + if (metrics->x_bearing + metrics->width > font->x_max) + font->x_max = metrics->x_bearing + metrics->width; + if (metrics->y_bearing + metrics->height > font->y_max) + font->y_max = metrics->y_bearing + metrics->height; + } + font->widths[subset_index] = metrics->x_advance; + + status = _cairo_array_grow_by (data, 30); + if (unlikely (status)) + return status; + + if (type == CAIRO_CHARSTRING_TYPE1) { + charstring_encode_integer (data, (int) scaled_glyph->metrics.x_bearing, type); + charstring_encode_integer (data, (int) scaled_glyph->metrics.y_bearing, type); + charstring_encode_integer (data, (int) scaled_glyph->metrics.x_advance, type); + charstring_encode_integer (data, (int) scaled_glyph->metrics.y_advance, type); + charstring_encode_command (data, CHARSTRING_sbw); + + path_info.current_x = (int) scaled_glyph->metrics.x_bearing; + path_info.current_y = (int) scaled_glyph->metrics.y_bearing; + } else { + charstring_encode_integer (data, (int) scaled_glyph->metrics.x_advance, type); + + path_info.current_x = 0; + path_info.current_y = 0; + } + path_info.data = data; + path_info.type = type; + if (emit_path) { + status = _cairo_path_fixed_interpret (scaled_glyph->path, + _charstring_move_to, + _charstring_line_to, + _charstring_curve_to, + _charstring_close_path, + &path_info); + if (unlikely (status)) + return status; + } + + status = _cairo_array_grow_by (data, 1); + if (unlikely (status)) + return status; + charstring_encode_command (path_info.data, CHARSTRING_endchar); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +cairo_type1_font_write_charstrings (cairo_type1_font_t *font, + cairo_output_stream_t *encrypted_output) +{ + cairo_status_t status; + unsigned char zeros[] = { 0, 0, 0, 0 }; + cairo_array_t data; + unsigned int i; + int length; + + _cairo_array_init (&data, sizeof (unsigned char)); + status = _cairo_array_grow_by (&data, 1024); + if (unlikely (status)) + goto fail; + + _cairo_output_stream_printf (encrypted_output, + "2 index /CharStrings %d dict dup begin\n", + font->scaled_font_subset->num_glyphs + 1); + + _cairo_scaled_font_freeze_cache (font->type1_scaled_font); + for (i = 0; i < font->scaled_font_subset->num_glyphs; i++) { + _cairo_array_truncate (&data, 0); + /* four "random" bytes required by encryption algorithm */ + status = _cairo_array_append_multiple (&data, zeros, 4); + if (unlikely (status)) + break; + + status = cairo_type1_font_create_charstring (font, i, + font->scaled_font_subset->glyphs[i], + CAIRO_CHARSTRING_TYPE1, + &data); + if (unlikely (status)) + break; + + charstring_encrypt (&data); + length = _cairo_array_num_elements (&data); + if (font->scaled_font_subset->glyph_names != NULL) { + _cairo_output_stream_printf (encrypted_output, "/%s %d RD ", + font->scaled_font_subset->glyph_names[i], + length); + } else if (i == 0) { + _cairo_output_stream_printf (encrypted_output, "/.notdef %d RD ", length); + } else { + _cairo_output_stream_printf (encrypted_output, "/g%d %d RD ", i, length); + } + _cairo_output_stream_write (encrypted_output, + _cairo_array_index (&data, 0), + length); + _cairo_output_stream_printf (encrypted_output, " ND\n"); + } + _cairo_scaled_font_thaw_cache (font->type1_scaled_font); + +fail: + _cairo_array_fini (&data); + return status; +} + +static void +cairo_type1_font_write_header (cairo_type1_font_t *font, + const char *name) +{ + unsigned int i; + const char spaces[50] = " "; + + _cairo_output_stream_printf (font->output, + "%%!FontType1-1.1 %s 1.0\n" + "11 dict begin\n" + "/FontName /%s def\n" + "/PaintType 0 def\n" + "/FontType 1 def\n" + "/FontMatrix [0.001 0 0 0.001 0 0] readonly def\n", + name, + name); + + /* We don't know the bbox values until after the charstrings have + * been generated. Reserve some space and fill in the bbox + * later. */ + + /* Worst case for four signed ints with spaces between each number */ + font->bbox_max_chars = 50; + + _cairo_output_stream_printf (font->output, "/FontBBox {"); + font->bbox_position = _cairo_output_stream_get_position (font->output); + _cairo_output_stream_write (font->output, spaces, font->bbox_max_chars); + + _cairo_output_stream_printf (font->output, + "} readonly def\n" + "/Encoding 256 array\n" + "0 1 255 {1 index exch /.notdef put} for\n"); + if (font->scaled_font_subset->is_latin) { + for (i = 1; i < 256; i++) { + int subset_glyph = font->scaled_font_subset->latin_to_subset_glyph_index[i]; + + if (subset_glyph > 0) { + if (font->scaled_font_subset->glyph_names != NULL) { + _cairo_output_stream_printf (font->output, "dup %d /%s put\n", + i, font->scaled_font_subset->glyph_names[subset_glyph]); + } else { + _cairo_output_stream_printf (font->output, "dup %d /g%d put\n", i, subset_glyph); + } + } + } + } else { + for (i = 1; i < font->scaled_font_subset->num_glyphs; i++) { + if (font->scaled_font_subset->glyph_names != NULL) { + _cairo_output_stream_printf (font->output, "dup %d /%s put\n", + i, font->scaled_font_subset->glyph_names[i]); + } else { + _cairo_output_stream_printf (font->output, "dup %d /g%d put\n", i, i); + } + } + } + _cairo_output_stream_printf (font->output, + "readonly def\n" + "currentdict end\n" + "currentfile eexec\n"); +} + +static cairo_status_t +cairo_type1_write_stream_encrypted (void *closure, + const unsigned char *data, + unsigned int length) +{ + const unsigned char *in, *end; + uint16_t c, p; + static const char hex_digits[16] = "0123456789abcdef"; + char digits[3]; + cairo_type1_font_t *font = closure; + + in = (const unsigned char *) data; + end = (const unsigned char *) data + length; + while (in < end) { + p = *in++; + c = p ^ (font->eexec_key >> 8); + font->eexec_key = (c + font->eexec_key) * CAIRO_TYPE1_ENCRYPT_C1 + CAIRO_TYPE1_ENCRYPT_C2; + + if (font->hex_encode) { + digits[0] = hex_digits[c >> 4]; + digits[1] = hex_digits[c & 0x0f]; + digits[2] = '\n'; + font->hex_column += 2; + + if (font->hex_column == 78) { + _cairo_output_stream_write (font->output, digits, 3); + font->hex_column = 0; + } else { + _cairo_output_stream_write (font->output, digits, 2); + } + } else { + digits[0] = c; + _cairo_output_stream_write (font->output, digits, 1); + } + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +cairo_type1_font_write_private_dict (cairo_type1_font_t *font, + const char *name) +{ + cairo_int_status_t status; + cairo_status_t status2; + cairo_output_stream_t *encrypted_output; + + font->eexec_key = CAIRO_TYPE1_PRIVATE_DICT_KEY; + font->hex_column = 0; + encrypted_output = _cairo_output_stream_create ( + cairo_type1_write_stream_encrypted, + NULL, + font); + if (_cairo_output_stream_get_status (encrypted_output)) + return _cairo_output_stream_destroy (encrypted_output); + + /* Note: the first four spaces at the start of this private dict + * are the four "random" bytes of plaintext required by the + * encryption algorithm */ + _cairo_output_stream_printf (encrypted_output, + " dup /Private 9 dict dup begin\n" + "/RD {string currentfile exch readstring pop}" + " bind executeonly def\n" + "/ND {noaccess def} executeonly def\n" + "/NP {noaccess put} executeonly def\n" + "/BlueValues [] def\n" + "/MinFeature {16 16} def\n" + "/lenIV 4 def\n" + "/password 5839 def\n"); + + status = cairo_type1_font_write_charstrings (font, encrypted_output); + if (unlikely (status)) + goto fail; + + _cairo_output_stream_printf (encrypted_output, + "end\n" + "end\n" + "readonly put\n" + "noaccess put\n" + "dup /FontName get exch definefont pop\n" + "mark currentfile closefile\n"); + + fail: + status2 = _cairo_output_stream_destroy (encrypted_output); + if (status == CAIRO_INT_STATUS_SUCCESS) + status = status2; + + return status; +} + +static void +cairo_type1_font_write_trailer(cairo_type1_font_t *font) +{ + int i; + static const char zeros[65] = + "0000000000000000000000000000000000000000000000000000000000000000\n"; + + for (i = 0; i < 8; i++) + _cairo_output_stream_write (font->output, zeros, sizeof zeros); + + _cairo_output_stream_printf (font->output, "cleartomark\n"); +} + +static cairo_status_t +cairo_type1_write_stream (void *closure, + const unsigned char *data, + unsigned int length) +{ + cairo_type1_font_t *font = closure; + + return _cairo_array_append_multiple (&font->contents, data, length); +} + +static cairo_int_status_t +cairo_type1_font_write (cairo_type1_font_t *font, + const char *name) +{ + cairo_int_status_t status; + + cairo_type1_font_write_header (font, name); + font->header_size = _cairo_output_stream_get_position (font->output); + + status = cairo_type1_font_write_private_dict (font, name); + if (unlikely (status)) + return status; + + font->data_size = _cairo_output_stream_get_position (font->output) - + font->header_size; + + cairo_type1_font_write_trailer (font); + font->trailer_size = + _cairo_output_stream_get_position (font->output) - + font->header_size - font->data_size; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +cairo_type1_font_generate (cairo_type1_font_t *font, const char *name) +{ + cairo_int_status_t status; + + status = _cairo_array_grow_by (&font->contents, 4096); + if (unlikely (status)) + return status; + + font->output = _cairo_output_stream_create (cairo_type1_write_stream, NULL, font); + if (_cairo_output_stream_get_status (font->output)) + return _cairo_output_stream_destroy (font->output); + + status = cairo_type1_font_write (font, name); + if (unlikely (status)) + return status; + + font->data = _cairo_array_index (&font->contents, 0); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +cairo_type1_font_destroy (cairo_type1_font_t *font) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + free (font->widths); + cairo_scaled_font_destroy (font->type1_scaled_font); + _cairo_array_fini (&font->contents); + if (font->output) + status = _cairo_output_stream_destroy (font->output); + free (font); + + return status; +} + +static cairo_status_t +_cairo_type1_fallback_init_internal (cairo_type1_subset_t *type1_subset, + const char *name, + cairo_scaled_font_subset_t *scaled_font_subset, + cairo_bool_t hex_encode) +{ + cairo_type1_font_t *font; + cairo_status_t status; + unsigned long length; + unsigned int i, len; + + status = cairo_type1_font_create (scaled_font_subset, &font, hex_encode); + if (unlikely (status)) + return status; + + status = cairo_type1_font_generate (font, name); + if (unlikely (status)) + goto fail1; + + type1_subset->base_font = strdup (name); + if (unlikely (type1_subset->base_font == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail1; + } + + type1_subset->widths = _cairo_calloc_ab (font->scaled_font_subset->num_glyphs, + sizeof (double)); + if (unlikely (type1_subset->widths == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail2; + } + for (i = 0; i < font->scaled_font_subset->num_glyphs; i++) + type1_subset->widths[i] = (double)font->widths[i]/1000; + + type1_subset->x_min = (double)font->x_min/1000; + type1_subset->y_min = (double)font->y_min/1000; + type1_subset->x_max = (double)font->x_max/1000; + type1_subset->y_max = (double)font->y_max/1000; + type1_subset->ascent = (double)font->y_max/1000; + type1_subset->descent = (double)font->y_min/1000; + + length = font->header_size + font->data_size + + font->trailer_size; + type1_subset->data = _cairo_malloc (length); + if (unlikely (type1_subset->data == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail3; + } + memcpy (type1_subset->data, + _cairo_array_index (&font->contents, 0), length); + + len = snprintf(type1_subset->data + font->bbox_position, + font->bbox_max_chars, + "%d %d %d %d", + (int)font->x_min, + (int)font->y_min, + (int)font->x_max, + (int)font->y_max); + type1_subset->data[font->bbox_position + len] = ' '; + + type1_subset->header_length = font->header_size; + type1_subset->data_length = font->data_size; + type1_subset->trailer_length = font->trailer_size; + + return cairo_type1_font_destroy (font); + + fail3: + free (type1_subset->widths); + fail2: + free (type1_subset->base_font); + fail1: + /* status is already set, ignore further errors */ + cairo_type1_font_destroy (font); + + return status; +} + +cairo_status_t +_cairo_type1_fallback_init_binary (cairo_type1_subset_t *type1_subset, + const char *name, + cairo_scaled_font_subset_t *scaled_font_subset) +{ + return _cairo_type1_fallback_init_internal (type1_subset, + name, + scaled_font_subset, FALSE); +} + +cairo_status_t +_cairo_type1_fallback_init_hex (cairo_type1_subset_t *type1_subset, + const char *name, + cairo_scaled_font_subset_t *scaled_font_subset) +{ + return _cairo_type1_fallback_init_internal (type1_subset, + name, + scaled_font_subset, TRUE); +} + +void +_cairo_type1_fallback_fini (cairo_type1_subset_t *subset) +{ + free (subset->base_font); + free (subset->widths); + free (subset->data); +} + +cairo_status_t +_cairo_type2_charstrings_init (cairo_type2_charstrings_t *type2_subset, + cairo_scaled_font_subset_t *scaled_font_subset) +{ + cairo_type1_font_t *font; + cairo_status_t status; + unsigned int i; + cairo_array_t charstring; + + status = cairo_type1_font_create (scaled_font_subset, &font, FALSE); + if (unlikely (status)) + return status; + + _cairo_array_init (&type2_subset->charstrings, sizeof (cairo_array_t)); + + type2_subset->widths = _cairo_calloc_ab (font->scaled_font_subset->num_glyphs, sizeof (int)); + if (unlikely (type2_subset->widths == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto fail1; + } + + _cairo_scaled_font_freeze_cache (font->type1_scaled_font); + for (i = 0; i < font->scaled_font_subset->num_glyphs; i++) { + _cairo_array_init (&charstring, sizeof (unsigned char)); + status = _cairo_array_grow_by (&charstring, 32); + if (unlikely (status)) + goto fail2; + + status = cairo_type1_font_create_charstring (font, i, + font->scaled_font_subset->glyphs[i], + CAIRO_CHARSTRING_TYPE2, + &charstring); + if (unlikely (status)) + goto fail2; + + status = _cairo_array_append (&type2_subset->charstrings, &charstring); + if (unlikely (status)) + goto fail2; + } + _cairo_scaled_font_thaw_cache (font->type1_scaled_font); + + for (i = 0; i < font->scaled_font_subset->num_glyphs; i++) + type2_subset->widths[i] = font->widths[i]; + + type2_subset->x_min = (int) font->x_min; + type2_subset->y_min = (int) font->y_min; + type2_subset->x_max = (int) font->x_max; + type2_subset->y_max = (int) font->y_max; + type2_subset->ascent = (int) font->y_max; + type2_subset->descent = (int) font->y_min; + + return cairo_type1_font_destroy (font); + +fail2: + _cairo_scaled_font_thaw_cache (font->type1_scaled_font); + _cairo_array_fini (&charstring); + _cairo_type2_charstrings_fini (type2_subset); +fail1: + cairo_type1_font_destroy (font); + return status; +} + +void +_cairo_type2_charstrings_fini (cairo_type2_charstrings_t *type2_subset) +{ + unsigned int i, num_charstrings; + cairo_array_t *charstring; + + num_charstrings = _cairo_array_num_elements (&type2_subset->charstrings); + for (i = 0; i < num_charstrings; i++) { + charstring = _cairo_array_index (&type2_subset->charstrings, i); + _cairo_array_fini (charstring); + } + _cairo_array_fini (&type2_subset->charstrings); + + free (type2_subset->widths); +} + +#endif /* CAIRO_HAS_FONT_SUBSET */ diff --git a/local/recipes/libs/cairo/source/src/cairo-type1-glyph-names.c b/local/recipes/libs/cairo/source/src/cairo-type1-glyph-names.c new file mode 100644 index 0000000000..80ccb96269 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-type1-glyph-names.c @@ -0,0 +1,410 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Kristian Høgsberg + */ + +#include "cairoint.h" + +#if CAIRO_HAS_FONT_SUBSET + +#include "cairo-type1-private.h" +#include "cairo-scaled-font-subsets-private.h" + +#if 0 +/* + * The three tables that follow are generated using this perl code: + */ + +@ps_standard_encoding = ( + # 0 + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + # 16 + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + # 32 + "space", "exclam", "quotedbl", "numbersign", + "dollar", "percent", "ampersand", "quoteright", + "parenleft", "parenright", "asterisk", "plus", + "comma", "hyphen", "period", "slash", + # 48 + "zero", "one", "two", "three", + "four", "five", "six", "seven", + "eight", "nine", "colon", "semicolon", + "less", "equal", "greater", "question", + # 64 + "at", "A", "B", "C", + "D", "E", "F", "G", + "H", "I", "J", "K", + "L", "M", "N", "O", + # 80 + "P", "Q", "R", "S", + "T", "U", "V", "W", + "X", "Y", "Z", "bracketleft", + "backslash", "bracketright", "asciicircum", "underscore", + # 96 + "quoteleft", "a", "b", "c", + "d", "e", "f", "g", + "h", "i", "j", "k", + "l", "m", "n", "o", + # 112 + "p", "q", "r", "s", + "t", "u", "v", "w", + "x", "y", "z", "braceleft", + "bar", "braceright", "asciitilde", NULL, + # 128 + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + # 144 + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + # 160 + NULL, "exclamdown", "cent", "sterling", + "fraction", "yen", "florin", "section", + "currency", "quotesingle", "quotedblleft", "guillemotleft", + "guilsinglleft","guilsinglright","fi", "fl", + # 176 + NULL, "endash", "dagger", "daggerdbl", + "periodcentered",NULL, "paragraph", "bullet", + "quotesinglbase","quotedblbase","quotedblright","guillemotright", + "ellipsis", "perthousand", NULL, "questiondown", + # 192 + NULL, "grave", "acute", "circumflex", + "tilde", "macron", "breve", "dotaccent", + "dieresis", NULL, "ring", "cedilla", + NULL, "hungarumlaut", "ogonek", "caron", + # 208 + "emdash", NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + # 224 + NULL, "AE", NULL, "ordfeminine", + NULL, NULL, NULL, NULL, + "Lslash", "Oslash", "OE", "ordmasculine", + NULL, NULL, NULL, NULL, + # 240 + NULL, "ae", NULL, NULL, + NULL, "dotlessi", NULL, NULL, + "lslash", "oslash", "oe", "germandbls", + NULL, NULL, NULL, NULL + ); + +@winansi_encoding = ( + # 0 + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + # 16 + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + # 32 + "space", "exclam", "quotedbl", "numbersign", + "dollar", "percent", "ampersand", "quotesingle", + "parenleft", "parenright", "asterisk", "plus", + "comma", "hyphen", "period", "slash", + # 48 + "zero", "one", "two", "three", + "four", "five", "six", "seven", + "eight", "nine", "colon", "semicolon", + "less", "equal", "greater", "question", + # 64 + "at", "A", "B", "C", + "D", "E", "F", "G", + "H", "I", "J", "K", + "L", "M", "N", "O", + # 80 + "P", "Q", "R", "S", + "T", "U", "V", "W", + "X", "Y", "Z", "bracketleft", + "backslash", "bracketright", "asciicircum", "underscore", + # 96 + "grave", "a", "b", "c", + "d", "e", "f", "g", + "h", "i", "j", "k", + "l", "m", "n", "o", + # 112 + "p", "q", "r", "s", + "t", "u", "v", "w", + "x", "y", "z", "braceleft", + "bar", "braceright", "asciitilde", NULL, + # 128 + "Euro", NULL, "quotesinglbase","florin", + "quotedblbase", "ellipsis", "dagger", "daggerdbl", + "circumflex", "perthousand", "Scaron", "guilsinglleft", + "OE", NULL, "Zcaron", NULL, + # 144 + NULL, "quoteleft", "quoteright", "quotedblleft", + "quotedblright","bullet", "endash", "emdash", + "tilde", "trademark", "scaron", "guilsinglright", + "oe", NULL, "zcaron", "Ydieresis", + # 160 + NULL, "exclamdown", "cent", "sterling", + "currency", "yen", "brokenbar", "section", + "dieresis", "copyright", "ordfeminine", "guillemotleft", + # 173 is also "hyphen" but we leave this NULL to avoid duplicate names + "logicalnot", NULL, "registered", "macron", + # 176 + "degree", "plusminus", "twosuperior", "threesuperior", + "acute", "mu", "paragraph", "periodcentered", + "cedilla", "onesuperior", "ordmasculine", "guillemotright", + "onequarter", "onehalf", "threequarters","questiondown", + # 192 + "Agrave", "Aacute", "Acircumflex", "Atilde", + "Adieresis", "Aring", "AE", "Ccedilla", + "Egrave", "Eacute", "Ecircumflex", "Edieresis", + "Igrave", "Iacute", "Icircumflex", "Idieresis", + # 208 + "Eth", "Ntilde", "Ograve", "Oacute", + "Ocircumflex", "Otilde", "Odieresis", "multiply", + "Oslash", "Ugrave", "Uacute", "Ucircumflex", + "Udieresis", "Yacute", "Thorn", "germandbls", + # 224 + "agrave", "aacute", "acircumflex", "atilde", + "adieresis", "aring", "ae", "ccedilla", + "egrave", "eacute", "ecircumflex", "edieresis", + "igrave", "iacute", "icircumflex", "idieresis", + # 240 + "eth", "ntilde", "ograve", "oacute", + "ocircumflex", "otilde", "odieresis", "divide", + "oslash", "ugrave", "uacute", "ucircumflex", + "udieresis", "yacute", "thorn", "ydieresis" +); + +sub print_offsets { + $s = qq(); + for $sym (@_) { + if (! ($sym eq NULL)) { + $ss = qq( $hash{$sym}/*$sym*/,); + } else { + $ss = qq( 0,); + } + if (length($s) + length($ss) > 78) { + print qq( $s\n); + $s = ""; + } + $s .= $ss; + } + print qq( $s\n); +} + +@combined = (@ps_standard_encoding, @winansi_encoding); +print "static const char glyph_name_symbol[] = {\n"; +%hash = (); +$s = qq( "\\0"); +$offset = 1; +for $sym (@combined) { + if (! ($sym eq NULL)) { + if (! exists $hash{$sym}) { + $hash{$sym} = $offset; + $offset += length($sym) + 1; + $ss = qq( "$sym\\0"); + if (length($s) + length($ss) > 78) { + print qq( $s\n); + $s = ""; + } + $s .= $ss; + } + } +} +print qq( $s\n); +print "};\n\n"; + +print "static const int16_t ps_standard_encoding_offset[256] = {\n"; +print_offsets(@ps_standard_encoding); +print "};\n"; + +print "static const int16_t winansi_encoding_offset[256] = {\n"; +print_offsets(@winansi_encoding); +print "};\n"; + +exit; +#endif + +static const char glyph_name_symbol[] = { + "\0" "space\0" "exclam\0" "quotedbl\0" "numbersign\0" "dollar\0" "percent\0" + "ampersand\0" "quoteright\0" "parenleft\0" "parenright\0" "asterisk\0" + "plus\0" "comma\0" "hyphen\0" "period\0" "slash\0" "zero\0" "one\0" "two\0" + "three\0" "four\0" "five\0" "six\0" "seven\0" "eight\0" "nine\0" "colon\0" + "semicolon\0" "less\0" "equal\0" "greater\0" "question\0" "at\0" "A\0" "B\0" + "C\0" "D\0" "E\0" "F\0" "G\0" "H\0" "I\0" "J\0" "K\0" "L\0" "M\0" "N\0" "O\0" + "P\0" "Q\0" "R\0" "S\0" "T\0" "U\0" "V\0" "W\0" "X\0" "Y\0" "Z\0" + "bracketleft\0" "backslash\0" "bracketright\0" "asciicircum\0" "underscore\0" + "quoteleft\0" "a\0" "b\0" "c\0" "d\0" "e\0" "f\0" "g\0" "h\0" "i\0" "j\0" + "k\0" "l\0" "m\0" "n\0" "o\0" "p\0" "q\0" "r\0" "s\0" "t\0" "u\0" "v\0" "w\0" + "x\0" "y\0" "z\0" "braceleft\0" "bar\0" "braceright\0" "asciitilde\0" + "exclamdown\0" "cent\0" "sterling\0" "fraction\0" "yen\0" "florin\0" + "section\0" "currency\0" "quotesingle\0" "quotedblleft\0" "guillemotleft\0" + "guilsinglleft\0" "guilsinglright\0" "fi\0" "fl\0" "endash\0" "dagger\0" + "daggerdbl\0" "periodcentered\0" "paragraph\0" "bullet\0" "quotesinglbase\0" + "quotedblbase\0" "quotedblright\0" "guillemotright\0" "ellipsis\0" + "perthousand\0" "questiondown\0" "grave\0" "acute\0" "circumflex\0" "tilde\0" + "macron\0" "breve\0" "dotaccent\0" "dieresis\0" "ring\0" "cedilla\0" + "hungarumlaut\0" "ogonek\0" "caron\0" "emdash\0" "AE\0" "ordfeminine\0" + "Lslash\0" "Oslash\0" "OE\0" "ordmasculine\0" "ae\0" "dotlessi\0" "lslash\0" + "oslash\0" "oe\0" "germandbls\0" "Euro\0" "Scaron\0" "Zcaron\0" "trademark\0" + "scaron\0" "zcaron\0" "Ydieresis\0" "brokenbar\0" "copyright\0" + "logicalnot\0" "registered\0" "degree\0" "plusminus\0" "twosuperior\0" + "threesuperior\0" "mu\0" "onesuperior\0" "onequarter\0" "onehalf\0" + "threequarters\0" "Agrave\0" "Aacute\0" "Acircumflex\0" "Atilde\0" + "Adieresis\0" "Aring\0" "Ccedilla\0" "Egrave\0" "Eacute\0" "Ecircumflex\0" + "Edieresis\0" "Igrave\0" "Iacute\0" "Icircumflex\0" "Idieresis\0" "Eth\0" + "Ntilde\0" "Ograve\0" "Oacute\0" "Ocircumflex\0" "Otilde\0" "Odieresis\0" + "multiply\0" "Ugrave\0" "Uacute\0" "Ucircumflex\0" "Udieresis\0" "Yacute\0" + "Thorn\0" "agrave\0" "aacute\0" "acircumflex\0" "atilde\0" "adieresis\0" + "aring\0" "ccedilla\0" "egrave\0" "eacute\0" "ecircumflex\0" "edieresis\0" + "igrave\0" "iacute\0" "icircumflex\0" "idieresis\0" "eth\0" "ntilde\0" + "ograve\0" "oacute\0" "ocircumflex\0" "otilde\0" "odieresis\0" "divide\0" + "ugrave\0" "uacute\0" "ucircumflex\0" "udieresis\0" "yacute\0" "thorn\0" + "ydieresis\0" +}; + +static const int16_t ps_standard_encoding_offset[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 1/*space*/, 7/*exclam*/, 14/*quotedbl*/, 23/*numbersign*/, + 34/*dollar*/, 41/*percent*/, 49/*ampersand*/, 59/*quoteright*/, + 70/*parenleft*/, 80/*parenright*/, 91/*asterisk*/, 100/*plus*/, 105/*comma*/, + 111/*hyphen*/, 118/*period*/, 125/*slash*/, 131/*zero*/, 136/*one*/, + 140/*two*/, 144/*three*/, 150/*four*/, 155/*five*/, 160/*six*/, 164/*seven*/, + 170/*eight*/, 176/*nine*/, 181/*colon*/, 187/*semicolon*/, 197/*less*/, + 202/*equal*/, 208/*greater*/, 216/*question*/, 225/*at*/, 228/*A*/, 230/*B*/, + 232/*C*/, 234/*D*/, 236/*E*/, 238/*F*/, 240/*G*/, 242/*H*/, 244/*I*/, + 246/*J*/, 248/*K*/, 250/*L*/, 252/*M*/, 254/*N*/, 256/*O*/, 258/*P*/, + 260/*Q*/, 262/*R*/, 264/*S*/, 266/*T*/, 268/*U*/, 270/*V*/, 272/*W*/, + 274/*X*/, 276/*Y*/, 278/*Z*/, 280/*bracketleft*/, 292/*backslash*/, + 302/*bracketright*/, 315/*asciicircum*/, 327/*underscore*/, 338/*quoteleft*/, + 348/*a*/, 350/*b*/, 352/*c*/, 354/*d*/, 356/*e*/, 358/*f*/, 360/*g*/, + 362/*h*/, 364/*i*/, 366/*j*/, 368/*k*/, 370/*l*/, 372/*m*/, 374/*n*/, + 376/*o*/, 378/*p*/, 380/*q*/, 382/*r*/, 384/*s*/, 386/*t*/, 388/*u*/, + 390/*v*/, 392/*w*/, 394/*x*/, 396/*y*/, 398/*z*/, 400/*braceleft*/, + 410/*bar*/, 414/*braceright*/, 425/*asciitilde*/, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 436/*exclamdown*/, 447/*cent*/, 452/*sterling*/, 461/*fraction*/, 470/*yen*/, + 474/*florin*/, 481/*section*/, 489/*currency*/, 498/*quotesingle*/, + 510/*quotedblleft*/, 523/*guillemotleft*/, 537/*guilsinglleft*/, + 551/*guilsinglright*/, 566/*fi*/, 569/*fl*/, 0, 572/*endash*/, 579/*dagger*/, + 586/*daggerdbl*/, 596/*periodcentered*/, 0, 611/*paragraph*/, 621/*bullet*/, + 628/*quotesinglbase*/, 643/*quotedblbase*/, 656/*quotedblright*/, + 670/*guillemotright*/, 685/*ellipsis*/, 694/*perthousand*/, 0, + 706/*questiondown*/, 0, 719/*grave*/, 725/*acute*/, 731/*circumflex*/, + 742/*tilde*/, 748/*macron*/, 755/*breve*/, 761/*dotaccent*/, 771/*dieresis*/, + 0, 780/*ring*/, 785/*cedilla*/, 0, 793/*hungarumlaut*/, 806/*ogonek*/, + 813/*caron*/, 819/*emdash*/, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 826/*AE*/, 0, 829/*ordfeminine*/, 0, 0, 0, 0, 841/*Lslash*/, 848/*Oslash*/, + 855/*OE*/, 858/*ordmasculine*/, 0, 0, 0, 0, 0, 871/*ae*/, 0, 0, 0, + 874/*dotlessi*/, 0, 0, 883/*lslash*/, 890/*oslash*/, 897/*oe*/, + 900/*germandbls*/, 0, 0, 0, 0, +}; + +static const int16_t winansi_encoding_offset[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 1/*space*/, 7/*exclam*/, 14/*quotedbl*/, 23/*numbersign*/, + 34/*dollar*/, 41/*percent*/, 49/*ampersand*/, 498/*quotesingle*/, + 70/*parenleft*/, 80/*parenright*/, 91/*asterisk*/, 100/*plus*/, 105/*comma*/, + 111/*hyphen*/, 118/*period*/, 125/*slash*/, 131/*zero*/, 136/*one*/, + 140/*two*/, 144/*three*/, 150/*four*/, 155/*five*/, 160/*six*/, 164/*seven*/, + 170/*eight*/, 176/*nine*/, 181/*colon*/, 187/*semicolon*/, 197/*less*/, + 202/*equal*/, 208/*greater*/, 216/*question*/, 225/*at*/, 228/*A*/, 230/*B*/, + 232/*C*/, 234/*D*/, 236/*E*/, 238/*F*/, 240/*G*/, 242/*H*/, 244/*I*/, + 246/*J*/, 248/*K*/, 250/*L*/, 252/*M*/, 254/*N*/, 256/*O*/, 258/*P*/, + 260/*Q*/, 262/*R*/, 264/*S*/, 266/*T*/, 268/*U*/, 270/*V*/, 272/*W*/, + 274/*X*/, 276/*Y*/, 278/*Z*/, 280/*bracketleft*/, 292/*backslash*/, + 302/*bracketright*/, 315/*asciicircum*/, 327/*underscore*/, 719/*grave*/, + 348/*a*/, 350/*b*/, 352/*c*/, 354/*d*/, 356/*e*/, 358/*f*/, 360/*g*/, + 362/*h*/, 364/*i*/, 366/*j*/, 368/*k*/, 370/*l*/, 372/*m*/, 374/*n*/, + 376/*o*/, 378/*p*/, 380/*q*/, 382/*r*/, 384/*s*/, 386/*t*/, 388/*u*/, + 390/*v*/, 392/*w*/, 394/*x*/, 396/*y*/, 398/*z*/, 400/*braceleft*/, + 410/*bar*/, 414/*braceright*/, 425/*asciitilde*/, 0, 911/*Euro*/, 0, + 628/*quotesinglbase*/, 474/*florin*/, 643/*quotedblbase*/, 685/*ellipsis*/, + 579/*dagger*/, 586/*daggerdbl*/, 731/*circumflex*/, 694/*perthousand*/, + 916/*Scaron*/, 537/*guilsinglleft*/, 855/*OE*/, 0, 923/*Zcaron*/, 0, 0, + 338/*quoteleft*/, 59/*quoteright*/, 510/*quotedblleft*/, + 656/*quotedblright*/, 621/*bullet*/, 572/*endash*/, 819/*emdash*/, + 742/*tilde*/, 930/*trademark*/, 940/*scaron*/, 551/*guilsinglright*/, + 897/*oe*/, 0, 947/*zcaron*/, 954/*Ydieresis*/, 0, 436/*exclamdown*/, + 447/*cent*/, 452/*sterling*/, 489/*currency*/, 470/*yen*/, 964/*brokenbar*/, + 481/*section*/, 771/*dieresis*/, 974/*copyright*/, 829/*ordfeminine*/, + 523/*guillemotleft*/, 984/*logicalnot*/, 0, 995/*registered*/, 748/*macron*/, + 1006/*degree*/, 1013/*plusminus*/, 1023/*twosuperior*/, + 1035/*threesuperior*/, 725/*acute*/, 1049/*mu*/, 611/*paragraph*/, + 596/*periodcentered*/, 785/*cedilla*/, 1052/*onesuperior*/, + 858/*ordmasculine*/, 670/*guillemotright*/, 1064/*onequarter*/, + 1075/*onehalf*/, 1083/*threequarters*/, 706/*questiondown*/, 1097/*Agrave*/, + 1104/*Aacute*/, 1111/*Acircumflex*/, 1123/*Atilde*/, 1130/*Adieresis*/, + 1140/*Aring*/, 826/*AE*/, 1146/*Ccedilla*/, 1155/*Egrave*/, 1162/*Eacute*/, + 1169/*Ecircumflex*/, 1181/*Edieresis*/, 1191/*Igrave*/, 1198/*Iacute*/, + 1205/*Icircumflex*/, 1217/*Idieresis*/, 1227/*Eth*/, 1231/*Ntilde*/, + 1238/*Ograve*/, 1245/*Oacute*/, 1252/*Ocircumflex*/, 1264/*Otilde*/, + 1271/*Odieresis*/, 1281/*multiply*/, 848/*Oslash*/, 1290/*Ugrave*/, + 1297/*Uacute*/, 1304/*Ucircumflex*/, 1316/*Udieresis*/, 1326/*Yacute*/, + 1333/*Thorn*/, 900/*germandbls*/, 1339/*agrave*/, 1346/*aacute*/, + 1353/*acircumflex*/, 1365/*atilde*/, 1372/*adieresis*/, 1382/*aring*/, + 871/*ae*/, 1388/*ccedilla*/, 1397/*egrave*/, 1404/*eacute*/, + 1411/*ecircumflex*/, 1423/*edieresis*/, 1433/*igrave*/, 1440/*iacute*/, + 1447/*icircumflex*/, 1459/*idieresis*/, 1469/*eth*/, 1473/*ntilde*/, + 1480/*ograve*/, 1487/*oacute*/, 1494/*ocircumflex*/, 1506/*otilde*/, + 1513/*odieresis*/, 1523/*divide*/, 890/*oslash*/, 1530/*ugrave*/, + 1537/*uacute*/, 1544/*ucircumflex*/, 1556/*udieresis*/, 1566/*yacute*/, + 1573/*thorn*/, 1579/*ydieresis*/, +}; + +const char * +_cairo_ps_standard_encoding_to_glyphname (int glyph) +{ + if (ps_standard_encoding_offset[glyph]) + return glyph_name_symbol + ps_standard_encoding_offset[glyph]; + else + return NULL; +} + +const char * +_cairo_winansi_to_glyphname (int glyph) +{ + if (winansi_encoding_offset[glyph]) + return glyph_name_symbol + winansi_encoding_offset[glyph]; + else + return NULL; +} + +#endif /* CAIRO_HAS_FONT_SUBSET */ diff --git a/local/recipes/libs/cairo/source/src/cairo-type1-private.h b/local/recipes/libs/cairo/source/src/cairo-type1-private.h new file mode 100644 index 0000000000..1630397bca --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-type1-private.h @@ -0,0 +1,51 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2007 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Adrian Johnson + */ + +#ifndef CAIRO_TYPE1_PRIVATE_H +#define CAIRO_TYPE1_PRIVATE_H + +#include "cairoint.h" + +#if CAIRO_HAS_FONT_SUBSET + +/* Magic constants for the type1 eexec encryption */ +#define CAIRO_TYPE1_ENCRYPT_C1 ((unsigned short) 52845) +#define CAIRO_TYPE1_ENCRYPT_C2 ((unsigned short) 22719) +#define CAIRO_TYPE1_PRIVATE_DICT_KEY ((unsigned short) 55665) +#define CAIRO_TYPE1_CHARSTRING_KEY ((unsigned short) 4330) + +#endif /* CAIRO_HAS_FONT_SUBSET */ + +#endif /* CAIRO_TYPE1_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-type1-subset.c b/local/recipes/libs/cairo/source/src/cairo-type1-subset.c new file mode 100644 index 0000000000..5c3766e3af --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-type1-subset.c @@ -0,0 +1,1862 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Kristian Høgsberg + */ + +/* + * Useful links: + * http://partners.adobe.com/public/developer/en/font/T1_SPEC.PDF + */ + + +#define _DEFAULT_SOURCE /* for snprintf(), strdup() */ +#include "cairoint.h" + +#include "cairo-array-private.h" +#include "cairo-error-private.h" + +#if CAIRO_HAS_FONT_SUBSET + +#include "cairo-type1-private.h" +#include "cairo-scaled-font-subsets-private.h" +#include "cairo-output-stream-private.h" + +#include + +#define TYPE1_STACKSIZE 24 /* Defined in Type 1 Font Format */ + + +typedef struct { + int subset_index; + double width; + const char *encrypted_charstring; + int encrypted_charstring_length; +} glyph_data_t; + +typedef struct _cairo_type1_font_subset { + cairo_scaled_font_subset_t *scaled_font_subset; + + struct { + unsigned int font_id; + char *base_font; + unsigned int num_glyphs; /* Num /CharStrings in font */ + double x_min, y_min, x_max, y_max; + double ascent, descent; + double units_per_em; + + const char *data; + unsigned long header_size; + unsigned long data_size; + unsigned long trailer_size; + } base; + + /* Num glyphs in subset. May be greater than + * scaled_font_subset->num_glyphs due to glyphs required by the + * SEAC operator. */ + int num_glyphs; + + /* The glyphs and glyph_names arrays are indexed by the order of + * the Charstrings in the font. This is not necessarily the same + * order as the glyph index. The index_to_glyph_name() font backend + * function is used to map the glyph index to the glyph order in + * the Charstrings. */ + + cairo_array_t glyphs_array; + glyph_data_t *glyphs; /* pointer to first element of above array */ + cairo_array_t glyph_names_array; + char **glyph_names; /* pointer to first element of above array */ + + int num_subrs; /* Num /Subrs routines in the font */ + cairo_bool_t subset_subrs; + struct { + const char *subr_string; + int subr_length; + const char *np; + int np_length; + cairo_bool_t used; + } *subrs; /* array with num_subrs elements */ + + /* Maps scaled_font_subset index to glyphs_array. + * Array size = scaled_font_subset->num_glyphs. */ + int *scaled_subset_index_to_glyphs; + + /* Keeps track of the glyphs that will be emitted in the subset. + * Allocated size = base.num_glyphs. Number of entries = num_glyphs. + * Array values are glyph_array indexes. + */ + int *type1_subset_index_to_glyphs; + + cairo_output_stream_t *output; + cairo_array_t contents; + + const char *rd, *nd, *np; + + int lenIV; + + char *type1_data; + unsigned int type1_length; + char *type1_end; + + char *header_segment; + unsigned int header_segment_size; + char *eexec_segment; + unsigned int eexec_segment_size; + cairo_bool_t eexec_segment_is_ascii; + + char *cleartext; + char *cleartext_end; + + unsigned int header_size; + + unsigned short eexec_key; + cairo_bool_t hex_encode; + int hex_column; + + struct { + double stack[TYPE1_STACKSIZE]; + int sp; + } build_stack; + + struct { + int stack[TYPE1_STACKSIZE]; + int sp; + } ps_stack; + + +} cairo_type1_font_subset_t; + + +static cairo_status_t +_cairo_type1_font_subset_init (cairo_type1_font_subset_t *font, + cairo_scaled_font_subset_t *scaled_font_subset, + cairo_bool_t hex_encode) +{ + memset (font, 0, sizeof (*font)); + font->scaled_font_subset = scaled_font_subset; + + _cairo_array_init (&font->glyphs_array, sizeof (glyph_data_t)); + _cairo_array_init (&font->glyph_names_array, sizeof (char *)); + font->scaled_subset_index_to_glyphs = _cairo_calloc_ab (scaled_font_subset->num_glyphs, + sizeof font->scaled_subset_index_to_glyphs[0]); + if (unlikely (font->scaled_subset_index_to_glyphs == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + + font->type1_subset_index_to_glyphs = NULL; + font->base.num_glyphs = 0; + font->num_subrs = 0; + font->subset_subrs = TRUE; + font->subrs = NULL; + + font->hex_encode = hex_encode; + font->num_glyphs = 0; + + _cairo_array_init (&font->contents, sizeof (char)); + + return CAIRO_STATUS_SUCCESS; +} + +static void +cairo_type1_font_subset_use_glyph (cairo_type1_font_subset_t *font, int glyph) +{ + if (font->glyphs[glyph].subset_index >= 0) + return; + + font->glyphs[glyph].subset_index = font->num_glyphs; + font->type1_subset_index_to_glyphs[font->num_glyphs] = glyph; + font->num_glyphs++; +} + +static cairo_bool_t +is_ps_delimiter(int c) +{ + static const char delimiters[] = "()[]{}<>/% \t\r\n"; + + return strchr (delimiters, c) != NULL; +} + +static const char * +find_token (const char *buffer, const char *end, const char *token) +{ + int i, length; + /* FIXME: find substring really must be find_token */ + + if (buffer == NULL) + return NULL; + + length = strlen (token); + for (i = 0; buffer + i < end - length + 1; i++) + if (memcmp (buffer + i, token, length) == 0) + if ((i == 0 || token[0] == '/' || is_ps_delimiter(buffer[i - 1])) && + (buffer + i == end - length || is_ps_delimiter(buffer[i + length]))) + return buffer + i; + + return NULL; +} + +static cairo_status_t +cairo_type1_font_subset_find_segments (cairo_type1_font_subset_t *font) +{ + unsigned char *p; + const char *eexec_token; + unsigned int size, i; + + p = (unsigned char *) font->type1_data; + font->type1_end = font->type1_data + font->type1_length; + if (font->type1_length >= 2 && p[0] == 0x80 && p[1] == 0x01) { + if (font->type1_end < (char *)(p + 6)) + return CAIRO_INT_STATUS_UNSUPPORTED; + font->header_segment_size = + p[2] | (p[3] << 8) | (p[4] << 16) | ((unsigned int) p[5] << 24); + font->header_segment = (char *) p + 6; + + p += 6 + font->header_segment_size; + if (font->type1_end < (char *)(p + 6)) + return CAIRO_INT_STATUS_UNSUPPORTED; + font->eexec_segment_size = + p[2] | (p[3] << 8) | (p[4] << 16) | ((unsigned int) p[5] << 24); + font->eexec_segment = (char *) p + 6; + font->eexec_segment_is_ascii = (p[1] == 1); + + p += 6 + font->eexec_segment_size; + while (font->type1_end >= (char *)(p + 6) && p[1] != 0x03) { + size = p[2] | (p[3] << 8) | (p[4] << 16) | ((unsigned int) p[5] << 24); + if (font->type1_end < (char *)(p + 6 + size)) + return CAIRO_INT_STATUS_UNSUPPORTED; + p += 6 + size; + } + font->type1_end = (char *) p; + } else { + eexec_token = find_token ((char *) p, font->type1_end, "eexec"); + if (eexec_token == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + font->header_segment_size = eexec_token - (char *) p + strlen ("eexec\n"); + font->header_segment = (char *) p; + font->eexec_segment_size = font->type1_length - font->header_segment_size; + font->eexec_segment = (char *) p + font->header_segment_size; + font->eexec_segment_is_ascii = TRUE; + for (i = 0; i < 4; i++) { + if (!_cairo_isxdigit (font->eexec_segment[i])) + font->eexec_segment_is_ascii = FALSE; + } + } + + return CAIRO_STATUS_SUCCESS; +} + +/* Search for the definition of key and erase it by overwriting with spaces. + * This function is looks for definitions of the form: + * + * /key1 1234 def + * /key2 [12 34 56] def + * + * ie a key defined as an integer or array of integers. + * + */ +static void +cairo_type1_font_erase_dict_key (cairo_type1_font_subset_t *font, + const char *key) +{ + const char *start, *p, *segment_end; + + segment_end = font->header_segment + font->header_segment_size; + + start = font->header_segment; + do { + start = find_token (start, segment_end, key); + if (start) { + p = start + strlen(key); + /* skip integers or array of integers */ + while (p < segment_end && + (_cairo_isspace(*p) || + _cairo_isdigit(*p) || + *p == '[' || + *p == ']')) + { + p++; + } + + if (p + 3 < segment_end && memcmp(p, "def", 3) == 0) { + /* erase definition of the key */ + memset((char *) start, ' ', p + 3 - start); + } + start += strlen(key); + } + } while (start); +} + +static cairo_status_t +cairo_type1_font_subset_get_matrix (cairo_type1_font_subset_t *font, + const char *name, + double *a, + double *b, + double *c, + double *d) +{ + const char *start, *end, *segment_end; + int ret, s_max, i, j; + char *s; + const char *decimal_point; + int decimal_point_len; + + decimal_point = _cairo_get_locale_decimal_point (); + decimal_point_len = strlen (decimal_point); + + assert (decimal_point_len != 0); + + segment_end = font->header_segment + font->header_segment_size; + start = find_token (font->header_segment, segment_end, name); + if (start == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + end = find_token (start, segment_end, "def"); + if (end == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + s_max = end - start + 5*decimal_point_len + 1; + s = _cairo_malloc (s_max); + if (unlikely (s == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + i = 0; + j = 0; + while (i < end - start && j < s_max - decimal_point_len) { + if (start[i] == '.') { + strncpy(s + j, decimal_point, decimal_point_len + 1); + i++; + j += decimal_point_len; + } else { + s[j++] = start[i++]; + } + } + s[j] = 0; + + start = strpbrk (s, "{["); + if (!start) { + free (s); + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + start++; + ret = 0; + if (*start) + ret = sscanf(start, "%lf %lf %lf %lf", a, b, c, d); + + free (s); + + if (ret != 4) + return CAIRO_INT_STATUS_UNSUPPORTED; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +cairo_type1_font_subset_get_bbox (cairo_type1_font_subset_t *font) +{ + cairo_status_t status; + double x_min, y_min, x_max, y_max; + double xx, yx, xy, yy; + + status = cairo_type1_font_subset_get_matrix (font, "/FontBBox", + &x_min, + &y_min, + &x_max, + &y_max); + if (unlikely (status)) + return status; + + status = cairo_type1_font_subset_get_matrix (font, "/FontMatrix", + &xx, &yx, &xy, &yy); + if (unlikely (status)) + return status; + + if (yy == 0.0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* FreeType uses 1/yy to get units per EM */ + font->base.units_per_em = 1.0/yy; + + /* If the FontMatrix is not a uniform scale the metrics we extract + * from the font won't match what FreeType returns */ + if (xx != yy || yx != 0.0 || xy != 0.0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + font->base.x_min = x_min / font->base.units_per_em; + font->base.y_min = y_min / font->base.units_per_em; + font->base.x_max = x_max / font->base.units_per_em; + font->base.y_max = y_max / font->base.units_per_em; + font->base.ascent = font->base.y_max; + font->base.descent = font->base.y_min; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +cairo_type1_font_subset_get_fontname (cairo_type1_font_subset_t *font) +{ + const char *start, *end, *segment_end; + char *s; + int i; + cairo_status_t status; + + segment_end = font->header_segment + font->header_segment_size; + start = find_token (font->header_segment, segment_end, "/FontName"); + if (start == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + start += strlen ("/FontName"); + + end = find_token (start, segment_end, "def"); + if (end == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + while (end > start && _cairo_isspace(end[-1])) + end--; + + s = _cairo_malloc (end - start + 1); + if (unlikely (s == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + strncpy (s, start, end - start); + s[end - start] = 0; + + start = strchr (s, '/'); + if (!start++ || !start) { + free (s); + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + /* If font name is prefixed with a subset tag, strip it off. */ + if (strlen(start) > 7 && start[6] == '+') { + for (i = 0; i < 6; i++) { + if (start[i] < 'A' || start[i] > 'Z') + break; + } + if (i == 6) + start += 7; + } + + font->base.base_font = strdup (start); + free (s); + if (unlikely (font->base.base_font == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_escape_ps_name (&font->base.base_font); + + return status; +} + +static cairo_status_t +cairo_type1_font_subset_write_header (cairo_type1_font_subset_t *font, + const char *name) +{ + const char *start, *end, *segment_end; + unsigned int i; + int glyph; + + /* FIXME: + * This function assumes that /FontName always appears + * before /Encoding. This appears to always be the case with Type1 + * fonts. + * + * The more recently added code for removing the UniqueID and XUID + * keys can not make any assumptions about the position of the + * keys in the dictionary so it is implemented by overwriting the + * key definition with spaces before we start copying the font to + * the output. + * + * This code should be rewritten to not make any assumptions about + * the order of dictionary keys. This will allow UniqueID to be + * stripped out instead of leaving a bunch of spaces in the + * output. + */ + cairo_type1_font_erase_dict_key (font, "/UniqueID"); + cairo_type1_font_erase_dict_key (font, "/XUID"); + + segment_end = font->header_segment + font->header_segment_size; + + /* Type 1 fonts created by Fontforge have some PostScript code at + * the start of the font that skips the font if the printer has a + * cached copy of the font with the same unique id. This breaks + * our subsetted font so we disable it by searching for the + * PostScript operator "known" when used to check for the + * "/UniqueID" dictionary key. We append " pop false " after it to + * pop the result of this check off the stack and replace it with + * "false" to make the PostScript code think "/UniqueID" does not + * exist. + */ + end = font->header_segment; + start = find_token (font->header_segment, segment_end, "/UniqueID"); + if (start) { + start += 9; + while (start < segment_end && _cairo_isspace (*start)) + start++; + if (start + 5 < segment_end && memcmp(start, "known", 5) == 0) { + _cairo_output_stream_write (font->output, font->header_segment, + start + 5 - font->header_segment); + _cairo_output_stream_printf (font->output, " pop false "); + end = start + 5; + } + } + + start = find_token (end, segment_end, "/FontName"); + if (start == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + _cairo_output_stream_write (font->output, end, + start - end); + + _cairo_output_stream_printf (font->output, "/FontName /%s def", name); + + end = find_token (start, segment_end, "def"); + if (end == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + end += 3; + + start = find_token (end, segment_end, "/Encoding"); + if (start == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + _cairo_output_stream_write (font->output, end, start - end); + + _cairo_output_stream_printf (font->output, + "/Encoding 256 array\n" + "0 1 255 {1 index exch /.notdef put} for\n"); + if (font->scaled_font_subset->is_latin) { + for (i = 1; i < 256; i++) { + int subset_glyph = font->scaled_font_subset->latin_to_subset_glyph_index[i]; + + if (subset_glyph > 0) { + _cairo_output_stream_printf (font->output, + "dup %d /%s put\n", + i, + _cairo_winansi_to_glyphname (i)); + } + } + } else { + for (i = 1; i < font->scaled_font_subset->num_glyphs; i++) { + glyph = font->scaled_subset_index_to_glyphs[i]; + _cairo_output_stream_printf (font->output, + "dup %d /%s put\n", + i, + font->glyph_names[glyph]); + } + } + _cairo_output_stream_printf (font->output, "readonly def"); + + end = find_token (start, segment_end, "def"); + if (end == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + end += 3; + + /* There are some buggy fonts that contain more than one /Encoding */ + if (find_token (end, segment_end, "/Encoding")) + return CAIRO_INT_STATUS_UNSUPPORTED; + + _cairo_output_stream_write (font->output, end, segment_end - end); + + return font->output->status; +} + +static int +hex_to_int (int ch) +{ + if (ch <= '9') + return ch - '0'; + else if (ch <= 'F') + return ch - 'A' + 10; + else + return ch - 'a' + 10; +} + +static cairo_status_t +cairo_type1_font_subset_write_encrypted (cairo_type1_font_subset_t *font, + const char *data, unsigned int length) +{ + const unsigned char *in, *end; + int c, p; + static const char hex_digits[16] = "0123456789abcdef"; + char digits[3]; + + in = (const unsigned char *) data; + end = (const unsigned char *) data + length; + while (in < end) { + p = *in++; + c = p ^ (font->eexec_key >> 8); + font->eexec_key = (c + font->eexec_key) * CAIRO_TYPE1_ENCRYPT_C1 + CAIRO_TYPE1_ENCRYPT_C2; + + if (font->hex_encode) { + digits[0] = hex_digits[c >> 4]; + digits[1] = hex_digits[c & 0x0f]; + digits[2] = '\n'; + font->hex_column += 2; + + if (font->hex_column == 78) { + _cairo_output_stream_write (font->output, digits, 3); + font->hex_column = 0; + } else { + _cairo_output_stream_write (font->output, digits, 2); + } + } else { + digits[0] = c; + _cairo_output_stream_write (font->output, digits, 1); + } + } + + return font->output->status; +} + +static cairo_status_t +cairo_type1_font_subset_decrypt_eexec_segment (cairo_type1_font_subset_t *font) +{ + unsigned short r = CAIRO_TYPE1_PRIVATE_DICT_KEY; + unsigned char *in, *end; + char *out; + int c, p; + unsigned int i; + + in = (unsigned char *) font->eexec_segment; + end = (unsigned char *) in + font->eexec_segment_size; + + font->cleartext = _cairo_malloc (font->eexec_segment_size + 1); + if (unlikely (font->cleartext == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + out = font->cleartext; + while (in < end) { + if (font->eexec_segment_is_ascii) { + c = *in++; + if (_cairo_isspace (c)) + continue; + c = (hex_to_int (c) << 4) | hex_to_int (*in++); + } else { + c = *in++; + } + p = c ^ (r >> 8); + r = (c + r) * CAIRO_TYPE1_ENCRYPT_C1 + CAIRO_TYPE1_ENCRYPT_C2; + + *out++ = p; + } + font->cleartext_end = out; + + /* Overwrite random bytes with spaces. + * + * The first 4 bytes of the cleartext are the random bytes + * required by the encryption algorithm. When encrypting the + * cleartext, the first ciphertext byte must not be a white space + * character and the first 4 bytes must not be an ASCII Hex + * character. Some fonts do not check that their randomly chosen + * bytes results in ciphertext that complies with this + * restriction. This may cause problems for some PDF consumers. By + * replacing the random bytes with spaces, the first four bytes of + * ciphertext will always be 0xf9, 0x83, 0xef, 0x00 which complies + * with this restriction. Using spaces also means we don't have to + * skip over the random bytes when parsing the cleartext. + */ + for (i = 0; i < 4 && i < font->eexec_segment_size; i++) + font->cleartext[i] = ' '; + + /* Ensure strtol() can not scan past the end of the cleartext */ + font->cleartext[font->eexec_segment_size] = 0; + + return CAIRO_STATUS_SUCCESS; +} + +static const char * +skip_token (const char *p, const char *end) +{ + while (p < end && _cairo_isspace(*p)) + p++; + + while (p < end && !_cairo_isspace(*p)) + p++; + + if (p == end) + return NULL; + + return p; +} + +static void +cairo_type1_font_subset_decrypt_charstring (const unsigned char *in, int size, unsigned char *out) +{ + unsigned short r = CAIRO_TYPE1_CHARSTRING_KEY; + int c, p, i; + + for (i = 0; i < size; i++) { + c = *in++; + p = c ^ (r >> 8); + r = (c + r) * CAIRO_TYPE1_ENCRYPT_C1 + CAIRO_TYPE1_ENCRYPT_C2; + *out++ = p; + } +} + +static const unsigned char * +cairo_type1_font_subset_decode_integer (const unsigned char *p, int *integer) +{ + if (*p <= 246) { + *integer = *p++ - 139; + } else if (*p <= 250) { + *integer = (p[0] - 247) * 256 + p[1] + 108; + p += 2; + } else if (*p <= 254) { + *integer = -(p[0] - 251) * 256 - p[1] - 108; + p += 2; + } else { + *integer = ((uint32_t)p[1] << 24) | (p[2] << 16) | (p[3] << 8) | p[4]; + p += 5; + } + + return p; +} + +static cairo_status_t +use_standard_encoding_glyph (cairo_type1_font_subset_t *font, int index) +{ + const char *glyph_name; + unsigned int i; + + if (index < 0 || index > 255) + return CAIRO_STATUS_SUCCESS; + + glyph_name = _cairo_ps_standard_encoding_to_glyphname (index); + if (glyph_name == NULL) + return CAIRO_STATUS_SUCCESS; + + for (i = 0; i < font->base.num_glyphs; i++) { + if (font->glyph_names[i] && strcmp (font->glyph_names[i], glyph_name) == 0) { + cairo_type1_font_subset_use_glyph (font, i); + + return CAIRO_STATUS_SUCCESS; + } + } + + return CAIRO_INT_STATUS_UNSUPPORTED; +} + + +#define TYPE1_CHARSTRING_COMMAND_HSTEM 0x01 +#define TYPE1_CHARSTRING_COMMAND_VSTEM 0x03 +#define TYPE1_CHARSTRING_COMMAND_VMOVETO 0x04 +#define TYPE1_CHARSTRING_COMMAND_RLINETO 0x05 +#define TYPE1_CHARSTRING_COMMAND_HLINETO 0x06 +#define TYPE1_CHARSTRING_COMMAND_VLINETO 0x07 +#define TYPE1_CHARSTRING_COMMAND_RRCURVETO 0x08 +#define TYPE1_CHARSTRING_COMMAND_CLOSEPATH 0x09 +#define TYPE1_CHARSTRING_COMMAND_CALLSUBR 0x0a +#define TYPE1_CHARSTRING_COMMAND_RETURN 0x0b +#define TYPE1_CHARSTRING_COMMAND_ESCAPE 0x0c +#define TYPE1_CHARSTRING_COMMAND_HSBW 0x0d +#define TYPE1_CHARSTRING_COMMAND_ENDCHAR 0x0e +#define TYPE1_CHARSTRING_COMMAND_RMOVETO 0x15 +#define TYPE1_CHARSTRING_COMMAND_HMOVETO 0x16 +#define TYPE1_CHARSTRING_COMMAND_VHCURVETO 0x1e +#define TYPE1_CHARSTRING_COMMAND_HVCURVETO 0x1f +#define TYPE1_CHARSTRING_COMMAND_DOTSECTION 0x0c00 +#define TYPE1_CHARSTRING_COMMAND_VSTEM3 0x0c01 +#define TYPE1_CHARSTRING_COMMAND_HSTEM3 0x0c02 +#define TYPE1_CHARSTRING_COMMAND_SEAC 0x0c06 +#define TYPE1_CHARSTRING_COMMAND_SBW 0x0c07 +#define TYPE1_CHARSTRING_COMMAND_DIV 0x0c0c +#define TYPE1_CHARSTRING_COMMAND_CALLOTHERSUBR 0x0c10 +#define TYPE1_CHARSTRING_COMMAND_POP 0x0c11 +#define TYPE1_CHARSTRING_COMMAND_SETCURRENTPOINT 0x0c21 + +/* Parse the charstring, including recursing into subroutines. Find + * the glyph width, subroutines called, and glyphs required by the + * SEAC operator. */ +static cairo_status_t +cairo_type1_font_subset_parse_charstring (cairo_type1_font_subset_t *font, + int glyph, + const char *encrypted_charstring, + int encrypted_charstring_length) +{ + cairo_status_t status; + unsigned char *charstring; + const unsigned char *end; + const unsigned char *p; + int command; + + charstring = _cairo_malloc (encrypted_charstring_length); + if (unlikely (charstring == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + cairo_type1_font_subset_decrypt_charstring ((const unsigned char *) + encrypted_charstring, + encrypted_charstring_length, + charstring); + end = charstring + encrypted_charstring_length; + p = charstring + font->lenIV; + status = CAIRO_STATUS_SUCCESS; + while (p < end) { + if (*p < 32) { + command = *p++; + switch (command) { + case TYPE1_CHARSTRING_COMMAND_HSTEM: + case TYPE1_CHARSTRING_COMMAND_VSTEM: + case TYPE1_CHARSTRING_COMMAND_VMOVETO: + case TYPE1_CHARSTRING_COMMAND_RLINETO: + case TYPE1_CHARSTRING_COMMAND_HLINETO: + case TYPE1_CHARSTRING_COMMAND_VLINETO: + case TYPE1_CHARSTRING_COMMAND_RRCURVETO: + case TYPE1_CHARSTRING_COMMAND_CLOSEPATH: + case TYPE1_CHARSTRING_COMMAND_RMOVETO: + case TYPE1_CHARSTRING_COMMAND_HMOVETO: + case TYPE1_CHARSTRING_COMMAND_VHCURVETO: + case TYPE1_CHARSTRING_COMMAND_HVCURVETO: + case TYPE1_CHARSTRING_COMMAND_RETURN: + case TYPE1_CHARSTRING_COMMAND_ENDCHAR: + default: + /* stack clearing operator */ + font->build_stack.sp = 0; + break; + + case TYPE1_CHARSTRING_COMMAND_CALLSUBR: + if (font->subset_subrs && font->build_stack.sp > 0) { + double int_val; + if (modf(font->build_stack.stack[--font->build_stack.sp], &int_val) == 0.0) { + int subr_num = int_val; + if (subr_num >= 0 && subr_num < font->num_subrs) { + font->subrs[subr_num].used = TRUE; + status = cairo_type1_font_subset_parse_charstring ( + font, + glyph, + font->subrs[subr_num].subr_string, + font->subrs[subr_num].subr_length); + break; + } + } + } + font->subset_subrs = FALSE; + break; + + case TYPE1_CHARSTRING_COMMAND_HSBW: + if (font->build_stack.sp < 2) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto cleanup; + } + + font->glyphs[glyph].width = font->build_stack.stack[1]/font->base.units_per_em; + font->build_stack.sp = 0; + break; + + case TYPE1_CHARSTRING_COMMAND_ESCAPE: + command = command << 8 | *p++; + switch (command) { + case TYPE1_CHARSTRING_COMMAND_DOTSECTION: + case TYPE1_CHARSTRING_COMMAND_VSTEM3: + case TYPE1_CHARSTRING_COMMAND_HSTEM3: + case TYPE1_CHARSTRING_COMMAND_SETCURRENTPOINT: + default: + /* stack clearing operator */ + font->build_stack.sp = 0; + break; + + case TYPE1_CHARSTRING_COMMAND_SEAC: + /* The seac command takes five integer arguments. The + * last two are glyph indices into the PS standard + * encoding give the names of the glyphs that this + * glyph is composed from. All we need to do is to + * make sure those glyphs are present in the subset + * under their standard names. */ + if (font->build_stack.sp < 5) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto cleanup; + } + + status = use_standard_encoding_glyph (font, font->build_stack.stack[3]); + if (unlikely (status)) + goto cleanup; + + status = use_standard_encoding_glyph (font, font->build_stack.stack[4]); + if (unlikely (status)) + goto cleanup; + + font->build_stack.sp = 0; + break; + + case TYPE1_CHARSTRING_COMMAND_SBW: + if (font->build_stack.sp < 4) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto cleanup; + } + + font->glyphs[glyph].width = font->build_stack.stack[2]/font->base.units_per_em; + font->build_stack.sp = 0; + break; + + case TYPE1_CHARSTRING_COMMAND_DIV: + if (font->build_stack.sp < 2) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto cleanup; + } else { + double num1 = font->build_stack.stack[font->build_stack.sp - 2]; + double num2 = font->build_stack.stack[font->build_stack.sp - 1]; + font->build_stack.sp--; + if (num2 == 0.0) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto cleanup; + } + font->build_stack.stack[font->build_stack.sp - 1] = num1/num2; + } + break; + + case TYPE1_CHARSTRING_COMMAND_CALLOTHERSUBR: + if (font->build_stack.sp < 1) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto cleanup; + } + + font->build_stack.sp--; + font->ps_stack.sp = 0; + while (font->build_stack.sp) + font->ps_stack.stack[font->ps_stack.sp++] = font->build_stack.stack[--font->build_stack.sp]; + + break; + + case TYPE1_CHARSTRING_COMMAND_POP: + if (font->ps_stack.sp < 1) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto cleanup; + } + + /* T1 spec states that if the interpreter does not + * support executing the callothersub, the results + * must be taken from the callothersub arguments. */ + font->build_stack.stack[font->build_stack.sp++] = font->ps_stack.stack[--font->ps_stack.sp]; + break; + } + break; + } + } else { + /* integer argument */ + if (font->build_stack.sp < TYPE1_STACKSIZE) { + int val; + p = cairo_type1_font_subset_decode_integer (p, &val); + font->build_stack.stack[font->build_stack.sp++] = val; + } else { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto cleanup; + } + } + } + +cleanup: + free (charstring); + + return status; +} + +static cairo_status_t +cairo_type1_font_subset_build_subr_list (cairo_type1_font_subset_t *font, + int subr_number, + const char *encrypted_charstring, int encrypted_charstring_length, + const char *np, int np_length) +{ + + font->subrs[subr_number].subr_string = encrypted_charstring; + font->subrs[subr_number].subr_length = encrypted_charstring_length; + font->subrs[subr_number].np = np; + font->subrs[subr_number].np_length = np_length; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +write_used_subrs (cairo_type1_font_subset_t *font, + int subr_number, + const char *subr_string, int subr_string_length, + const char *np, int np_length) +{ + cairo_status_t status; + char buffer[256]; + int length; + + if (!font->subrs[subr_number].used) + return CAIRO_STATUS_SUCCESS; + + length = snprintf (buffer, sizeof buffer, + "dup %d %d %s ", + subr_number, subr_string_length, font->rd); + status = cairo_type1_font_subset_write_encrypted (font, buffer, length); + if (unlikely (status)) + return status; + + status = cairo_type1_font_subset_write_encrypted (font, + subr_string, + subr_string_length); + if (unlikely (status)) + return status; + + if (np) { + status = cairo_type1_font_subset_write_encrypted (font, np, np_length); + } else { + length = snprintf (buffer, sizeof buffer, "%s\n", font->np); + status = cairo_type1_font_subset_write_encrypted (font, buffer, length); + } + if (unlikely (status)) + return status; + + return CAIRO_STATUS_SUCCESS; +} + +typedef cairo_status_t (*subr_func_t) (cairo_type1_font_subset_t *font, + int subr_number, + const char *subr_string, int subr_string_length, + const char *np, int np_length); + +static cairo_status_t +cairo_type1_font_for_each_subr (cairo_type1_font_subset_t *font, + const char *array_start, + const char *cleartext_end, + subr_func_t func, + const char **array_end) +{ + const char *p, *subr_string; + char *end; + int subr_num, subr_length; + const char *np; + int np_length; + cairo_status_t status; + + /* We're looking at "dup" at the start of the first subroutine. The subroutines + * definitions are on the form: + * + * dup 5 23 RD <23 binary bytes> NP + * + * or alternatively using -| and |- instead of RD and ND. + * The first number is the subroutine number. + */ + + p = array_start; + while (p + 3 < cleartext_end && strncmp (p, "dup", 3) == 0) { + p = skip_token (p, cleartext_end); + + /* get subr number */ + subr_num = strtol (p, &end, 10); + if (p == end) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (subr_num < 0 || subr_num >= font->num_subrs) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* get subr length */ + p = end; + subr_length = strtol (p, &end, 10); + if (p == end) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Skip past -| or RD to binary data. There is exactly one space + * between the -| or RD token and the encrypted data, thus '+ 1'. */ + subr_string = skip_token (end, cleartext_end) + 1; + + np = NULL; + np_length = 0; + + /* Skip binary data and | or NP token. */ + p = skip_token (subr_string + subr_length, cleartext_end); + if (p == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + while (p < cleartext_end && _cairo_isspace(*p)) + p++; + + /* Some fonts have "noaccess put" instead of "NP" */ + if (p + 3 < cleartext_end && strncmp (p, "put", 3) == 0) { + p = skip_token (p, cleartext_end); + while (p < cleartext_end && _cairo_isspace(*p)) + p++; + + np = subr_string + subr_length; + np_length = p - np; + } + + status = func (font, subr_num, + subr_string, subr_length, np, np_length); + if (unlikely (status)) + return status; + + } + + *array_end = (char *) p; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +cairo_type1_font_subset_build_glyph_list (cairo_type1_font_subset_t *font, + int glyph_number, + const char *name, int name_length, + const char *encrypted_charstring, int encrypted_charstring_length) +{ + char *s; + glyph_data_t glyph; + cairo_status_t status; + + s = _cairo_malloc (name_length + 1); + if (unlikely (s == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + strncpy (s, name, name_length); + s[name_length] = 0; + + status = _cairo_array_append (&font->glyph_names_array, &s); + if (unlikely (status)) + return status; + + glyph.subset_index = -1; + glyph.width = 0; + glyph.encrypted_charstring = encrypted_charstring; + glyph.encrypted_charstring_length = encrypted_charstring_length; + status = _cairo_array_append (&font->glyphs_array, &glyph); + + return status; +} + +static cairo_status_t +write_used_glyphs (cairo_type1_font_subset_t *font, + int glyph_number, + const char *name, int name_length, + const char *charstring, int charstring_length) +{ + cairo_status_t status; + char buffer[256]; + int length; + unsigned int subset_id; + int ch; + const char *wa_name; + + if (font->glyphs[glyph_number].subset_index < 0) + return CAIRO_STATUS_SUCCESS; + + if (font->scaled_font_subset->is_latin) { + /* When using the WinAnsi encoding in PDF, the /Encoding array + * is ignored and instead glyphs are keyed by glyph names. To + * ensure correct rendering we replace the glyph name in the + * font with the standard name. + **/ + subset_id = font->glyphs[glyph_number].subset_index; + /* Any additional glyph included for use by the seac operator + * will either have subset_id >= font->scaled_font_subset->num_glyphs + * or will not map to a winansi name (wa_name = NULL). In this + * case the original name is used. + */ + if (subset_id > 0 && subset_id < font->scaled_font_subset->num_glyphs) { + ch = font->scaled_font_subset->to_latin_char[subset_id]; + wa_name = _cairo_winansi_to_glyphname (ch); + if (wa_name) { + name = wa_name; + name_length = strlen(name); + } + } + } + + length = snprintf (buffer, sizeof buffer, + "/%.*s %d %s ", + name_length, name, charstring_length, font->rd); + status = cairo_type1_font_subset_write_encrypted (font, buffer, length); + if (unlikely (status)) + return status; + + status = cairo_type1_font_subset_write_encrypted (font, + charstring, + charstring_length); + if (unlikely (status)) + return status; + + length = snprintf (buffer, sizeof buffer, "%s\n", font->nd); + status = cairo_type1_font_subset_write_encrypted (font, buffer, length); + if (unlikely (status)) + return status; + + return CAIRO_STATUS_SUCCESS; +} + +typedef cairo_status_t (*glyph_func_t) (cairo_type1_font_subset_t *font, + int glyph_number, + const char *name, int name_length, + const char *charstring, int charstring_length); + +static cairo_status_t +cairo_type1_font_subset_for_each_glyph (cairo_type1_font_subset_t *font, + const char *dict_start, + const char *dict_end, + glyph_func_t func, + const char **dict_out) +{ + int charstring_length, name_length; + const char *p, *charstring, *name; + char *end; + cairo_status_t status; + int glyph_count; + + /* We're looking at '/' in the name of the first glyph. The glyph + * definitions are on the form: + * + * /name 23 RD <23 binary bytes> ND + * + * or alternatively using -| and |- instead of RD and ND. + * + * We parse the glyph name and see if it is in the subset. If it + * is, we call the specified callback with the glyph name and + * glyph data, otherwise we just skip it. We need to parse + * through a glyph definition; we can't just find the next '/', + * since the binary data could contain a '/'. + */ + + p = dict_start; + glyph_count = 0; + while (*p == '/') { + name = p + 1; + p = skip_token (p, dict_end); + name_length = p - name; + + charstring_length = strtol (p, &end, 10); + if (p == end) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Skip past -| or RD to binary data. There is exactly one space + * between the -| or RD token and the encrypted data, thus '+ 1'. */ + charstring = skip_token (end, dict_end) + 1; + + /* Skip binary data and |- or ND token. */ + p = skip_token (charstring + charstring_length, dict_end); + if (p == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + while (p < dict_end && _cairo_isspace(*p)) + p++; + + /* In case any of the skip_token() calls above reached EOF, p will + * be equal to dict_end. */ + if (p == dict_end) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = func (font, glyph_count++, + name, name_length, + charstring, charstring_length); + if (unlikely (status)) + return status; + } + + *dict_out = p; + + return CAIRO_STATUS_SUCCESS; +} + + +static cairo_status_t +cairo_type1_font_subset_write_private_dict (cairo_type1_font_subset_t *font, + const char *name) +{ + cairo_status_t status; + const char *p, *subrs, *charstrings, *array_start, *array_end, *dict_start, *dict_end; + const char *lenIV_start, *lenIV_end, *closefile_token; + char buffer[32], *lenIV_str, *subr_count_end, *glyph_count_end; + int ret, lenIV, length; + const cairo_scaled_font_backend_t *backend; + unsigned int i; + int glyph, j; + + /* The private dict holds hint information, common subroutines and + * the actual glyph definitions (charstrings). + * + * What we do here is scan directly to the /Subrs token, which + * marks the beginning of the subroutines. We read in all the + * subroutines, then move on to the /CharString token, which marks + * the beginning of the glyph definitions, and read in the charstrings. + * + * The charstrings are parsed to extract glyph widths, work out + * which subroutines are called, and to see if any extra glyphs + * need to be included due to the use of the seac glyph combining + * operator. + * + * Finally, the private dict is copied to the subset font minus the + * subroutines and charstrings not required. + */ + + /* Determine lenIV, the number of random characters at the start of + each encrypted charstring. The default is 4, but this can be + overridden in the private dict. */ + font->lenIV = 4; + if ((lenIV_start = find_token (font->cleartext, font->cleartext_end, "/lenIV")) != NULL) { + lenIV_start += 6; + lenIV_end = find_token (lenIV_start, font->cleartext_end, "def"); + if (lenIV_end == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + lenIV_str = _cairo_malloc (lenIV_end - lenIV_start + 1); + if (unlikely (lenIV_str == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + strncpy (lenIV_str, lenIV_start, lenIV_end - lenIV_start); + lenIV_str[lenIV_end - lenIV_start] = 0; + + ret = sscanf(lenIV_str, "%d", &lenIV); + free(lenIV_str); + + if (unlikely (ret <= 0)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Apparently some fonts signal unencrypted charstrings with a negative lenIV, + though this is not part of the Type 1 Font Format specification. See, e.g. + http://lists.gnu.org/archive/html/freetype-devel/2000-06/msg00064.html. */ + if (unlikely (lenIV < 0)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + font->lenIV = lenIV; + } + + /* Find start of Subrs */ + subrs = find_token (font->cleartext, font->cleartext_end, "/Subrs"); + if (subrs == NULL) { + font->subset_subrs = FALSE; + p = font->cleartext; + array_start = NULL; + goto skip_subrs; + } + + /* Scan past /Subrs and get the array size. */ + p = subrs + strlen ("/Subrs"); + font->num_subrs = strtol (p, &subr_count_end, 10); + if (subr_count_end == p) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (font->num_subrs <= 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + font->subrs = _cairo_calloc_ab (font->num_subrs, sizeof (font->subrs[0])); + if (unlikely (font->subrs == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + /* look for "dup" which marks the beginning of the first subr */ + array_start = find_token (subr_count_end, font->cleartext_end, "dup"); + if (array_start == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Read in the subroutines */ + status = cairo_type1_font_for_each_subr (font, + array_start, + font->cleartext_end, + cairo_type1_font_subset_build_subr_list, + &array_end); + if (unlikely(status)) + return status; + + p = array_end; +skip_subrs: + + /* Find start of CharStrings */ + charstrings = find_token (p, font->cleartext_end, "/CharStrings"); + if (charstrings == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Scan past /CharStrings and the integer following it. */ + p = charstrings + strlen ("/CharStrings"); + strtol (p, &glyph_count_end, 10); + if (p == glyph_count_end) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Look for a '/' which marks the beginning of the first glyph + * definition. */ + for (p = glyph_count_end; p < font->cleartext_end; p++) + if (*p == '/') + break; + if (p == font->cleartext_end) + return CAIRO_INT_STATUS_UNSUPPORTED; + dict_start = p; + + /* Now that we have the private dictionary broken down in + * sections, do the first pass through the glyph definitions to + * build a list of glyph names and charstrings. */ + status = cairo_type1_font_subset_for_each_glyph (font, + dict_start, + font->cleartext_end, + cairo_type1_font_subset_build_glyph_list, + &dict_end); + if (unlikely(status)) + return status; + + font->glyphs = _cairo_array_index (&font->glyphs_array, 0); + font->glyph_names = _cairo_array_index (&font->glyph_names_array, 0); + font->base.num_glyphs = _cairo_array_num_elements (&font->glyphs_array); + font->type1_subset_index_to_glyphs = _cairo_calloc_ab (font->base.num_glyphs, + sizeof font->type1_subset_index_to_glyphs[0]); + if (unlikely (font->type1_subset_index_to_glyphs == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + backend = font->scaled_font_subset->scaled_font->backend; + if (!backend->index_to_glyph_name) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Find the glyph number corresponding to each glyph in the subset + * and mark it as in use */ + + for (i = 0; i < font->scaled_font_subset->num_glyphs; i++) { + unsigned long index; + + status = backend->index_to_glyph_name (font->scaled_font_subset->scaled_font, + font->glyph_names, + font->base.num_glyphs, + font->scaled_font_subset->glyphs[i], + &index); + if (unlikely(status)) + return status; + + cairo_type1_font_subset_use_glyph (font, index); + font->scaled_subset_index_to_glyphs[i] = index; + } + + /* Go through the charstring of each glyph in use, get the glyph + * width and figure out which extra glyphs may be required by the + * seac operator (which may cause font->num_glyphs to increase + * while this loop is executing). Also subset the Subrs. */ + for (j = 0; j < font->num_glyphs; j++) { + glyph = font->type1_subset_index_to_glyphs[j]; + font->build_stack.sp = 0; + font->ps_stack.sp = 0; + status = cairo_type1_font_subset_parse_charstring (font, + glyph, + font->glyphs[glyph].encrypted_charstring, + font->glyphs[glyph].encrypted_charstring_length); + if (unlikely (status)) + return status; + } + + /* Always include the first five subroutines in case the Flex/hint mechanism is + * being used. */ + for (j = 0; j < MIN (font->num_subrs, 5); j++) { + font->subrs[j].used = TRUE; + } + + closefile_token = find_token (dict_end, font->cleartext_end, "closefile"); + if (closefile_token == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* We're ready to start outputting. First write the header, + * i.e. the public part of the font dict.*/ + status = cairo_type1_font_subset_write_header (font, name); + if (unlikely (status)) + return status; + + font->base.header_size = _cairo_output_stream_get_position (font->output); + + /* Start outputting the private dict */ + if (font->subset_subrs) { + /* First output everything up to the start of the Subrs array. */ + status = cairo_type1_font_subset_write_encrypted (font, font->cleartext, + array_start - font->cleartext); + if (unlikely (status)) + return status; + + /* Write out the subr definitions for each of the glyphs in + * the subset. */ + status = cairo_type1_font_for_each_subr (font, + array_start, + font->cleartext_end, + write_used_subrs, + &p); + if (unlikely (status)) + return status; + } else { + p = font->cleartext; + } + + /* If subr subsetting, output everything from end of subrs to + * start of /CharStrings token. If not subr subsetting, output + * everything start of private dict to start of /CharStrings + * token. */ + status = cairo_type1_font_subset_write_encrypted (font, p, charstrings - p); + if (unlikely (status)) + return status; + + /* Write out new charstring count */ + length = snprintf (buffer, sizeof buffer, + "/CharStrings %d", font->num_glyphs); + status = cairo_type1_font_subset_write_encrypted (font, buffer, length); + if (unlikely (status)) + return status; + + /* Write out text between the charstring count and the first + * charstring definition */ + status = cairo_type1_font_subset_write_encrypted (font, glyph_count_end, + dict_start - glyph_count_end); + if (unlikely (status)) + return status; + + /* Write out the charstring definitions for each of the glyphs in + * the subset. */ + status = cairo_type1_font_subset_for_each_glyph (font, + dict_start, + font->cleartext_end, + write_used_glyphs, + &p); + if (unlikely (status)) + return status; + + /* Output what's left between the end of the glyph definitions and + * the end of the private dict to the output. */ + status = cairo_type1_font_subset_write_encrypted (font, p, + closefile_token - p + strlen ("closefile") + 1); + if (unlikely (status)) + return status; + + if (font->hex_encode) + _cairo_output_stream_write (font->output, "\n", 1); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +cairo_type1_font_subset_write_trailer(cairo_type1_font_subset_t *font) +{ + const char *cleartomark_token; + int i; + static const char zeros[65] = + "0000000000000000000000000000000000000000000000000000000000000000\n"; + + + for (i = 0; i < 8; i++) + _cairo_output_stream_write (font->output, zeros, sizeof zeros); + + cleartomark_token = find_token (font->type1_data, font->type1_end, "cleartomark"); + if (cleartomark_token) { + /* Some fonts have conditional save/restore around the entire + * font dict, so we need to retain whatever postscript code + * that may come after 'cleartomark'. */ + + _cairo_output_stream_write (font->output, cleartomark_token, + font->type1_end - cleartomark_token); + if (*(font->type1_end - 1) != '\n') + _cairo_output_stream_printf (font->output, "\n"); + + } else if (!font->eexec_segment_is_ascii) { + /* Fonts embedded in PDF may omit the fixed-content portion + * that includes the 'cleartomark' operator. Type 1 in PDF is + * always binary. */ + + _cairo_output_stream_printf (font->output, "cleartomark\n"); + } else { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + /* some fonts do not have a newline at the end of the last line */ + _cairo_output_stream_printf (font->output, "\n"); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +type1_font_write (void *closure, const unsigned char *data, unsigned int length) +{ + cairo_type1_font_subset_t *font = closure; + + return _cairo_array_append_multiple (&font->contents, data, length); +} + +static cairo_status_t +cairo_type1_font_subset_write (cairo_type1_font_subset_t *font, + const char *name) +{ + cairo_status_t status; + + status = cairo_type1_font_subset_find_segments (font); + if (unlikely (status)) + return status; + + status = cairo_type1_font_subset_decrypt_eexec_segment (font); + if (unlikely (status)) + return status; + + /* Determine which glyph definition delimiters to use. */ + if (find_token (font->cleartext, font->cleartext_end, "/-|") != NULL) { + font->rd = "-|"; + font->nd = "|-"; + font->np = "|"; + } else if (find_token (font->cleartext, font->cleartext_end, "/RD") != NULL) { + font->rd = "RD"; + font->nd = "ND"; + font->np = "NP"; + } else { + /* Don't know *what* kind of font this is... */ + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + font->eexec_key = CAIRO_TYPE1_PRIVATE_DICT_KEY; + font->hex_column = 0; + + status = cairo_type1_font_subset_get_bbox (font); + if (unlikely (status)) + return status; + + status = cairo_type1_font_subset_get_fontname (font); + if (unlikely (status)) + return status; + + status = cairo_type1_font_subset_write_private_dict (font, name); + if (unlikely (status)) + return status; + + font->base.data_size = _cairo_output_stream_get_position (font->output) - + font->base.header_size; + + status = cairo_type1_font_subset_write_trailer (font); + if (unlikely (status)) + return status; + + font->base.trailer_size = + _cairo_output_stream_get_position (font->output) - + font->base.header_size - font->base.data_size; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +check_fontdata_is_type1 (const unsigned char *data, long length) +{ + /* Test for Type 1 Binary (PFB) */ + if (length > 2 && data[0] == 0x80 && data[1] == 0x01) + return TRUE; + + /* Test for Type 1 1 ASCII (PFA) */ + if (length > 2 && data[0] == '%' && data[1] == '!') + return TRUE; + + return FALSE; +} + +static cairo_status_t +cairo_type1_font_subset_generate (void *abstract_font, + const char *name) + +{ + cairo_type1_font_subset_t *font = abstract_font; + cairo_scaled_font_t *scaled_font; + cairo_status_t status; + unsigned long data_length; + + scaled_font = font->scaled_font_subset->scaled_font; + if (!scaled_font->backend->load_type1_data) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = scaled_font->backend->load_type1_data (scaled_font, 0, NULL, &data_length); + if (status) + return CAIRO_INT_STATUS_UNSUPPORTED; + + font->type1_length = data_length; + font->type1_data = _cairo_malloc (font->type1_length); + if (unlikely (font->type1_data == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = scaled_font->backend->load_type1_data (scaled_font, 0, + (unsigned char *) font->type1_data, + &data_length); + if (unlikely (status)) + return status; + + if (!check_fontdata_is_type1 ((unsigned char *)font->type1_data, data_length)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_array_grow_by (&font->contents, 4096); + if (unlikely (status)) + return status; + + font->output = _cairo_output_stream_create (type1_font_write, NULL, font); + if (unlikely ((status = font->output->status))) + return status; + + status = cairo_type1_font_subset_write (font, name); + if (unlikely (status)) + return status; + + font->base.data = _cairo_array_index (&font->contents, 0); + + return status; +} + +static cairo_status_t +_cairo_type1_font_subset_fini (cairo_type1_font_subset_t *font) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + unsigned int i; + + /* If the subset generation failed, some of the pointers below may + * be NULL depending on at which point the error occurred. */ + + _cairo_array_fini (&font->contents); + + free (font->type1_data); + for (i = 0; i < _cairo_array_num_elements (&font->glyph_names_array); i++) { + char **s; + + s = _cairo_array_index (&font->glyph_names_array, i); + free (*s); + } + _cairo_array_fini (&font->glyph_names_array); + _cairo_array_fini (&font->glyphs_array); + + free (font->subrs); + + if (font->output != NULL) + status = _cairo_output_stream_destroy (font->output); + + free (font->base.base_font); + + free (font->scaled_subset_index_to_glyphs); + + free (font->type1_subset_index_to_glyphs); + + free (font->cleartext); + + return status; +} + +cairo_status_t +_cairo_type1_subset_init (cairo_type1_subset_t *type1_subset, + const char *name, + cairo_scaled_font_subset_t *scaled_font_subset, + cairo_bool_t hex_encode) +{ + cairo_type1_font_subset_t font; + cairo_status_t status; + cairo_bool_t is_synthetic; + unsigned long length; + unsigned int i; + char buf[30]; + int glyph; + + /* We need to use a fallback font if this font differs from the type1 outlines. */ + if (scaled_font_subset->scaled_font->backend->is_synthetic) { + status = scaled_font_subset->scaled_font->backend->is_synthetic (scaled_font_subset->scaled_font, &is_synthetic); + if (unlikely (status)) + return status; + + if (is_synthetic) + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + status = _cairo_type1_font_subset_init (&font, scaled_font_subset, hex_encode); + if (unlikely (status)) + return status; + + status = cairo_type1_font_subset_generate (&font, name); + if (unlikely (status)) + goto fail1; + + if (font.base.base_font) { + type1_subset->base_font = strdup (font.base.base_font); + } else { + snprintf(buf, sizeof (buf), "CairoFont-%u-%u", + scaled_font_subset->font_id, scaled_font_subset->subset_id); + type1_subset->base_font = strdup (buf); + } + if (unlikely (type1_subset->base_font == NULL)) + goto fail1; + + type1_subset->widths = _cairo_calloc_ab (scaled_font_subset->num_glyphs, sizeof (double)); + if (unlikely (type1_subset->widths == NULL)) + goto fail2; + + for (i = 0; i < font.scaled_font_subset->num_glyphs; i++) { + glyph = font.scaled_subset_index_to_glyphs[i]; + type1_subset->widths[i] = font.glyphs[glyph].width; + } + + type1_subset->x_min = font.base.x_min; + type1_subset->y_min = font.base.y_min; + type1_subset->x_max = font.base.x_max; + type1_subset->y_max = font.base.y_max; + type1_subset->ascent = font.base.ascent; + type1_subset->descent = font.base.descent; + + length = font.base.header_size + + font.base.data_size + + font.base.trailer_size; + type1_subset->data = _cairo_malloc (length); + if (unlikely (type1_subset->data == NULL)) + goto fail3; + + memcpy (type1_subset->data, + _cairo_array_index (&font.contents, 0), length); + + type1_subset->header_length = font.base.header_size; + type1_subset->data_length = font.base.data_size; + type1_subset->trailer_length = font.base.trailer_size; + + return _cairo_type1_font_subset_fini (&font); + + fail3: + free (type1_subset->widths); + fail2: + free (type1_subset->base_font); + fail1: + _cairo_type1_font_subset_fini (&font); + + return status; +} + +void +_cairo_type1_subset_fini (cairo_type1_subset_t *subset) +{ + free (subset->base_font); + free (subset->widths); + free (subset->data); +} + +cairo_bool_t +_cairo_type1_scaled_font_is_type1 (cairo_scaled_font_t *scaled_font) +{ + cairo_status_t status; + unsigned long length; + unsigned char buf[64]; + + if (!scaled_font->backend->load_type1_data) + return FALSE; + + status = scaled_font->backend->load_type1_data (scaled_font, 0, NULL, &length); + if (status) + return FALSE; + + /* We only need a few bytes to test for Type 1 */ + if (length > sizeof (buf)) + length = sizeof (buf); + + status = scaled_font->backend->load_type1_data (scaled_font, 0, buf, &length); + if (status) + return FALSE; + + return check_fontdata_is_type1 (buf, length); +} + +#endif /* CAIRO_HAS_FONT_SUBSET */ diff --git a/local/recipes/libs/cairo/source/src/cairo-type3-glyph-surface-private.h b/local/recipes/libs/cairo/source/src/cairo-type3-glyph-surface-private.h new file mode 100644 index 0000000000..6f40f1c25b --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-type3-glyph-surface-private.h @@ -0,0 +1,89 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2008 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Adrian Johnson. + * + * Contributor(s): + * Adrian Johnson + */ + +#ifndef CAIRO_TYPE3_GLYPH_SURFACE_PRIVATE_H +#define CAIRO_TYPE3_GLYPH_SURFACE_PRIVATE_H + +#include "cairoint.h" + +#if CAIRO_HAS_FONT_SUBSET + +#include "cairo-surface-private.h" +#include "cairo-surface-clipper-private.h" +#include "cairo-pdf-operators-private.h" + +typedef cairo_int_status_t +(*cairo_type3_glyph_surface_emit_image_t) (cairo_image_surface_t *image, + cairo_output_stream_t *stream); + +typedef struct cairo_type3_glyph_surface { + cairo_surface_t base; + + cairo_scaled_font_t *scaled_font; + cairo_output_stream_t *stream; + cairo_pdf_operators_t pdf_operators; + cairo_matrix_t cairo_to_pdf; + cairo_type3_glyph_surface_emit_image_t emit_image; + + cairo_surface_clipper_t clipper; +} cairo_type3_glyph_surface_t; + +cairo_private cairo_surface_t * +_cairo_type3_glyph_surface_create (cairo_scaled_font_t *scaled_font, + cairo_output_stream_t *stream, + cairo_type3_glyph_surface_emit_image_t emit_image, + cairo_scaled_font_subsets_t *font_subsets, + cairo_bool_t ps_output); + +cairo_private void +_cairo_type3_glyph_surface_set_font_subsets_callback (void *abstract_surface, + cairo_pdf_operators_use_font_subset_t use_font_subset, + void *closure); + +cairo_private cairo_status_t +_cairo_type3_glyph_surface_analyze_glyph (void *abstract_surface, + unsigned long glyph_index); + +cairo_private cairo_status_t +_cairo_type3_glyph_surface_emit_glyph (void *abstract_surface, + cairo_output_stream_t *stream, + unsigned long glyph_index, + cairo_box_t *bbox, + double *width); + +#endif /* CAIRO_HAS_FONT_SUBSET */ + +#endif /* CAIRO_TYPE3_GLYPH_SURFACE_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-type3-glyph-surface.c b/local/recipes/libs/cairo/source/src/cairo-type3-glyph-surface.c new file mode 100644 index 0000000000..bb77756a15 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-type3-glyph-surface.c @@ -0,0 +1,553 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2008 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Adrian Johnson. + * + * Contributor(s): + * Adrian Johnson + */ + +#include "cairoint.h" + +#if CAIRO_HAS_FONT_SUBSET + +#include "cairo-type3-glyph-surface-private.h" +#include "cairo-output-stream-private.h" +#include "cairo-recording-surface-private.h" +#include "cairo-analysis-surface-private.h" +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-surface-clipper-private.h" + +static const cairo_surface_backend_t cairo_type3_glyph_surface_backend; + +static cairo_status_t +_cairo_type3_glyph_surface_clipper_intersect_clip_path (cairo_surface_clipper_t *clipper, + cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_type3_glyph_surface_t *surface = cairo_container_of (clipper, + cairo_type3_glyph_surface_t, + clipper); + + if (path == NULL) { + _cairo_output_stream_printf (surface->stream, "Q q\n"); + return CAIRO_STATUS_SUCCESS; + } + + return _cairo_pdf_operators_clip (&surface->pdf_operators, + path, + fill_rule); +} + +cairo_surface_t * +_cairo_type3_glyph_surface_create (cairo_scaled_font_t *scaled_font, + cairo_output_stream_t *stream, + cairo_type3_glyph_surface_emit_image_t emit_image, + cairo_scaled_font_subsets_t *font_subsets, + cairo_bool_t ps) +{ + cairo_type3_glyph_surface_t *surface; + + if (unlikely (stream != NULL && stream->status)) + return _cairo_surface_create_in_error (stream->status); + + surface = _cairo_calloc (sizeof (cairo_type3_glyph_surface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_surface_init (&surface->base, + &cairo_type3_glyph_surface_backend, + NULL, /* device */ + CAIRO_CONTENT_COLOR_ALPHA, + TRUE); /* is_vector */ + + surface->scaled_font = scaled_font; + surface->stream = stream; + surface->emit_image = emit_image; + + /* Setup the transform from the user-font device space to Type 3 + * font space. The Type 3 font space is defined by the FontMatrix + * entry in the Type 3 dictionary. In the PDF backend this is an + * identity matrix. */ + surface->cairo_to_pdf = scaled_font->scale_inverse; + + _cairo_pdf_operators_init (&surface->pdf_operators, + surface->stream, + &surface->cairo_to_pdf, + font_subsets, + ps); + + _cairo_surface_clipper_init (&surface->clipper, + _cairo_type3_glyph_surface_clipper_intersect_clip_path); + + return &surface->base; +} + +static cairo_status_t +_cairo_type3_glyph_surface_emit_image (cairo_type3_glyph_surface_t *surface, + cairo_image_surface_t *image, + cairo_matrix_t *image_matrix) +{ + cairo_status_t status; + + /* The only image type supported by Type 3 fonts are 1-bit masks */ + image = _cairo_image_surface_coerce_to_format (image, CAIRO_FORMAT_A1); + status = image->base.status; + if (unlikely (status)) + return status; + + _cairo_output_stream_printf (surface->stream, + "q %f %f %f %f %f %f cm\n", + image_matrix->xx, + image_matrix->xy, + image_matrix->yx, + image_matrix->yy, + image_matrix->x0, + image_matrix->y0); + + status = surface->emit_image (image, surface->stream); + cairo_surface_destroy (&image->base); + + _cairo_output_stream_printf (surface->stream, + "Q\n"); + + return status; +} + +static cairo_status_t +_cairo_type3_glyph_surface_emit_image_pattern (cairo_type3_glyph_surface_t *surface, + cairo_image_surface_t *image, + const cairo_matrix_t *pattern_matrix) +{ + cairo_matrix_t mat, upside_down; + cairo_status_t status; + + if (image->width == 0 || image->height == 0) + return CAIRO_STATUS_SUCCESS; + + mat = *pattern_matrix; + + /* Get the pattern space to user space matrix */ + status = cairo_matrix_invert (&mat); + + /* cairo_pattern_set_matrix ensures the matrix is invertible */ + assert (status == CAIRO_STATUS_SUCCESS); + + /* Make this a pattern space to Type 3 font space matrix */ + cairo_matrix_multiply (&mat, &mat, &surface->cairo_to_pdf); + + /* PDF images are in a 1 unit by 1 unit image space. Turn the 1 by + * 1 image upside down to convert to flip the Y-axis going from + * cairo to PDF. Then scale the image up to the required size. */ + cairo_matrix_scale (&mat, image->width, image->height); + cairo_matrix_init (&upside_down, 1, 0, 0, -1, 0, 1); + cairo_matrix_multiply (&mat, &upside_down, &mat); + + return _cairo_type3_glyph_surface_emit_image (surface, image, &mat); +} + +static cairo_status_t +_cairo_type3_glyph_surface_finish (void *abstract_surface) +{ + cairo_type3_glyph_surface_t *surface = abstract_surface; + + cairo_status_t status = _cairo_pdf_operators_fini (&surface->pdf_operators); + _cairo_surface_clipper_reset (&surface->clipper); + return status; +} + +static cairo_int_status_t +_cairo_type3_glyph_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_type3_glyph_surface_t *surface = abstract_surface; + const cairo_surface_pattern_t *pattern; + cairo_image_surface_t *image; + void *image_extra; + cairo_status_t status; + + if (source->type != CAIRO_PATTERN_TYPE_SURFACE) + return CAIRO_INT_STATUS_IMAGE_FALLBACK; + + status = _cairo_surface_clipper_set_clip (&surface->clipper, clip); + if (unlikely (status)) + return status; + + pattern = (const cairo_surface_pattern_t *) source; + if (pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + return CAIRO_INT_STATUS_IMAGE_FALLBACK; + + status = _cairo_surface_acquire_source_image (pattern->surface, + &image, &image_extra); + if (unlikely (status)) + goto fail; + + status = _cairo_type3_glyph_surface_emit_image_pattern (surface, + image, + &pattern->base.matrix); + +fail: + _cairo_surface_release_source_image (pattern->surface, image, image_extra); + + return status; +} + +static cairo_int_status_t +_cairo_type3_glyph_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + return _cairo_type3_glyph_surface_paint (abstract_surface, + op, mask, + clip); +} + +static cairo_int_status_t +_cairo_type3_glyph_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_type3_glyph_surface_t *surface = abstract_surface; + cairo_int_status_t status; + + status = _cairo_surface_clipper_set_clip (&surface->clipper, clip); + if (unlikely (status)) + return status; + + return _cairo_pdf_operators_stroke (&surface->pdf_operators, + path, + style, + ctm, + ctm_inverse); +} + +static cairo_int_status_t +_cairo_type3_glyph_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_type3_glyph_surface_t *surface = abstract_surface; + cairo_int_status_t status; + + status = _cairo_surface_clipper_set_clip (&surface->clipper, clip); + if (unlikely (status)) + return status; + + return _cairo_pdf_operators_fill (&surface->pdf_operators, + path, + fill_rule); +} + +static cairo_int_status_t +_cairo_type3_glyph_surface_show_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + return CAIRO_INT_STATUS_IMAGE_FALLBACK; +} + +static const cairo_surface_backend_t cairo_type3_glyph_surface_backend = { + CAIRO_INTERNAL_SURFACE_TYPE_TYPE3_GLYPH, + _cairo_type3_glyph_surface_finish, + + _cairo_default_context_create, /* XXX usable through a context? */ + + NULL, /* create similar */ + NULL, /* create similar image */ + NULL, /* map to image */ + NULL, /* unmap image */ + + NULL, /* source */ + NULL, /* acquire_source_image */ + NULL, /* release_source_image */ + NULL, /* snapshot */ + + NULL, /* copy page */ + NULL, /* show page */ + + NULL, /* _cairo_type3_glyph_surface_get_extents */ + NULL, /* _cairo_type3_glyph_surface_get_font_options */ + + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + + _cairo_type3_glyph_surface_paint, + _cairo_type3_glyph_surface_mask, + _cairo_type3_glyph_surface_stroke, + _cairo_type3_glyph_surface_fill, + NULL, /* fill-stroke */ + _cairo_type3_glyph_surface_show_glyphs, +}; + +static void +_cairo_type3_glyph_surface_set_stream (cairo_type3_glyph_surface_t *surface, + cairo_output_stream_t *stream) +{ + surface->stream = stream; + _cairo_pdf_operators_set_stream (&surface->pdf_operators, stream); +} + +static cairo_status_t +_cairo_type3_glyph_surface_emit_fallback_image (cairo_type3_glyph_surface_t *surface, + unsigned long glyph_index) +{ + cairo_scaled_glyph_t *scaled_glyph; + cairo_status_t status; + cairo_image_surface_t *image; + cairo_matrix_t mat; + double x, y; + + status = _cairo_scaled_glyph_lookup (surface->scaled_font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_METRICS | + CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + if (unlikely (status)) + return status; + + image = scaled_glyph->surface; + if (image->width == 0 || image->height == 0) + return CAIRO_STATUS_SUCCESS; + + x = _cairo_fixed_to_double (scaled_glyph->bbox.p1.x); + y = _cairo_fixed_to_double (scaled_glyph->bbox.p2.y); + cairo_matrix_init(&mat, image->width, 0, + 0, -image->height, + x, y); + cairo_matrix_multiply (&mat, &mat, &surface->scaled_font->scale_inverse); + + return _cairo_type3_glyph_surface_emit_image (surface, image, &mat); +} + +void +_cairo_type3_glyph_surface_set_font_subsets_callback (void *abstract_surface, + cairo_pdf_operators_use_font_subset_t use_font_subset, + void *closure) +{ + cairo_type3_glyph_surface_t *surface = abstract_surface; + + if (unlikely (surface->base.status)) + return; + + _cairo_pdf_operators_set_font_subsets_callback (&surface->pdf_operators, + use_font_subset, + closure); +} + +cairo_status_t +_cairo_type3_glyph_surface_analyze_glyph (void *abstract_surface, + unsigned long glyph_index) +{ + cairo_type3_glyph_surface_t *surface = abstract_surface; + cairo_scaled_glyph_t *scaled_glyph; + cairo_int_status_t status, status2; + cairo_output_stream_t *null_stream; + + if (unlikely (surface->base.status)) + return surface->base.status; + + null_stream = _cairo_null_stream_create (); + if (unlikely (null_stream->status)) + return null_stream->status; + + _cairo_type3_glyph_surface_set_stream (surface, null_stream); + + _cairo_scaled_font_freeze_cache (surface->scaled_font); + status = _cairo_scaled_glyph_lookup (surface->scaled_font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + + if (_cairo_int_status_is_error (status)) + goto cleanup; + + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + status = CAIRO_INT_STATUS_SUCCESS; + goto cleanup; + } + + status = _cairo_recording_surface_replay (scaled_glyph->recording_surface, + &surface->base); + if (unlikely (status)) + goto cleanup; + + status = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (status == CAIRO_INT_STATUS_IMAGE_FALLBACK) + status = CAIRO_INT_STATUS_SUCCESS; + +cleanup: + _cairo_scaled_font_thaw_cache (surface->scaled_font); + + status2 = _cairo_output_stream_destroy (null_stream); + if (status == CAIRO_INT_STATUS_SUCCESS) + status = status2; + + return status; +} + +cairo_status_t +_cairo_type3_glyph_surface_emit_glyph (void *abstract_surface, + cairo_output_stream_t *stream, + unsigned long glyph_index, + cairo_box_t *bbox, + double *width) +{ + cairo_type3_glyph_surface_t *surface = abstract_surface; + cairo_scaled_glyph_t *scaled_glyph; + cairo_int_status_t status, status2; + double x_advance, y_advance; + cairo_matrix_t font_matrix_inverse; + + if (unlikely (surface->base.status)) + return surface->base.status; + + _cairo_type3_glyph_surface_set_stream (surface, stream); + + _cairo_scaled_font_freeze_cache (surface->scaled_font); + + /* Check if this is a color glyph and bail out if it is */ + status = _cairo_scaled_glyph_lookup (surface->scaled_font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + if (status == CAIRO_INT_STATUS_SUCCESS) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto FAIL; + } status = _cairo_scaled_glyph_lookup (surface->scaled_font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_METRICS | + CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + status = _cairo_scaled_glyph_lookup (surface->scaled_font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_METRICS, + NULL, /* foreground color */ + &scaled_glyph); + if (status == CAIRO_INT_STATUS_SUCCESS) + status = CAIRO_INT_STATUS_IMAGE_FALLBACK; + } + if (_cairo_int_status_is_error (status)) { + _cairo_scaled_font_thaw_cache (surface->scaled_font); + return status; + } + + x_advance = scaled_glyph->metrics.x_advance; + y_advance = scaled_glyph->metrics.y_advance; + font_matrix_inverse = surface->scaled_font->font_matrix; + status2 = cairo_matrix_invert (&font_matrix_inverse); + + /* The invertability of font_matrix is tested in + * pdf_operators_show_glyphs before any glyphs are mapped to the + * subset. */ + assert (status2 == CAIRO_INT_STATUS_SUCCESS); + + cairo_matrix_transform_distance (&font_matrix_inverse, &x_advance, &y_advance); + *width = x_advance; + + *bbox = scaled_glyph->bbox; + _cairo_matrix_transform_bounding_box_fixed (&surface->scaled_font->scale_inverse, + bbox, NULL); + + _cairo_output_stream_printf (surface->stream, + "%f 0 %f %f %f %f d1\n", + x_advance, + _cairo_fixed_to_double (bbox->p1.x), + _cairo_fixed_to_double (bbox->p1.y), + _cairo_fixed_to_double (bbox->p2.x), + _cairo_fixed_to_double (bbox->p2.y)); + + if (status == CAIRO_INT_STATUS_SUCCESS) { + cairo_output_stream_t *mem_stream; + + mem_stream = _cairo_memory_stream_create (); + status = mem_stream->status; + if (unlikely (status)) + goto FAIL; + + _cairo_type3_glyph_surface_set_stream (surface, mem_stream); + + _cairo_output_stream_printf (surface->stream, "q\n"); + status = _cairo_recording_surface_replay (scaled_glyph->recording_surface, + &surface->base); + + status2 = _cairo_pdf_operators_flush (&surface->pdf_operators); + if (status == CAIRO_INT_STATUS_SUCCESS) + status = status2; + + _cairo_output_stream_printf (surface->stream, "Q\n"); + + _cairo_type3_glyph_surface_set_stream (surface, stream); + if (status == CAIRO_INT_STATUS_SUCCESS) + _cairo_memory_stream_copy (mem_stream, stream); + + status2 = _cairo_output_stream_destroy (mem_stream); + if (status == CAIRO_INT_STATUS_SUCCESS) + status = status2; + } + + if (status == CAIRO_INT_STATUS_IMAGE_FALLBACK) + status = _cairo_type3_glyph_surface_emit_fallback_image (surface, glyph_index); + + FAIL: + _cairo_scaled_font_thaw_cache (surface->scaled_font); + + return status; +} + +#endif /* CAIRO_HAS_FONT_SUBSET */ diff --git a/local/recipes/libs/cairo/source/src/cairo-types-private.h b/local/recipes/libs/cairo/source/src/cairo-types-private.h new file mode 100644 index 0000000000..74a366c23c --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-types-private.h @@ -0,0 +1,453 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_TYPES_PRIVATE_H +#define CAIRO_TYPES_PRIVATE_H + +#include "cairo.h" +#include "cairo-fixed-type-private.h" +#include "cairo-list-private.h" +#include "cairo-reference-count-private.h" + +CAIRO_BEGIN_DECLS + +/** + * SECTION:cairo-types + * @Title: Types + * @Short_Description: Generic data types + * + * This section lists generic data types used in the cairo API. + **/ + +typedef struct _cairo_array cairo_array_t; +typedef struct _cairo_backend cairo_backend_t; +typedef struct _cairo_boxes_t cairo_boxes_t; +typedef struct _cairo_cache cairo_cache_t; +typedef struct _cairo_composite_rectangles cairo_composite_rectangles_t; +typedef struct _cairo_clip cairo_clip_t; +typedef struct _cairo_clip_path cairo_clip_path_t; +typedef struct _cairo_color cairo_color_t; +typedef struct _cairo_color_stop cairo_color_stop_t; +typedef struct _cairo_contour cairo_contour_t; +typedef struct _cairo_contour_chain cairo_contour_chain_t; +typedef struct _cairo_contour_iter cairo_contour_iter_t; +typedef struct _cairo_damage cairo_damage_t; +typedef struct _cairo_device_backend cairo_device_backend_t; +typedef struct _cairo_font_face_backend cairo_font_face_backend_t; +typedef struct _cairo_gstate cairo_gstate_t; +typedef struct _cairo_gstate_backend cairo_gstate_backend_t; +typedef struct _cairo_glyph_text_info cairo_glyph_text_info_t; +typedef struct _cairo_hash_entry cairo_hash_entry_t; +typedef struct _cairo_hash_table cairo_hash_table_t; +typedef struct _cairo_image_surface cairo_image_surface_t; +typedef struct _cairo_mime_data cairo_mime_data_t; +typedef struct _cairo_observer cairo_observer_t; +typedef struct _cairo_output_stream cairo_output_stream_t; +typedef struct _cairo_paginated_surface_backend cairo_paginated_surface_backend_t; +typedef struct _cairo_path_fixed cairo_path_fixed_t; +typedef struct _cairo_rectangle_int16 cairo_glyph_size_t; +typedef struct _cairo_scaled_font_subsets cairo_scaled_font_subsets_t; +typedef struct _cairo_solid_pattern cairo_solid_pattern_t; +typedef struct _cairo_surface_attributes cairo_surface_attributes_t; +typedef struct _cairo_surface_backend cairo_surface_backend_t; +typedef struct _cairo_surface_observer cairo_surface_observer_t; +typedef struct _cairo_surface_snapshot cairo_surface_snapshot_t; +typedef struct _cairo_surface_subsurface cairo_surface_subsurface_t; +typedef struct _cairo_surface_wrapper cairo_surface_wrapper_t; +typedef struct _cairo_traps cairo_traps_t; +typedef struct _cairo_tristrip cairo_tristrip_t; +typedef struct _cairo_unscaled_font_backend cairo_unscaled_font_backend_t; +typedef struct _cairo_xlib_screen_info cairo_xlib_screen_info_t; + +typedef cairo_array_t cairo_user_data_array_t; + +typedef struct _cairo_scaled_font_private cairo_scaled_font_private_t; +typedef struct _cairo_scaled_font_backend cairo_scaled_font_backend_t; +typedef struct _cairo_scaled_glyph cairo_scaled_glyph_t; +typedef struct _cairo_scaled_glyph_private cairo_scaled_glyph_private_t; + +typedef struct cairo_compositor cairo_compositor_t; +typedef struct cairo_fallback_compositor cairo_fallback_compositor_t; +typedef struct cairo_mask_compositor cairo_mask_compositor_t; +typedef struct cairo_traps_compositor cairo_traps_compositor_t; +typedef struct cairo_spans_compositor cairo_spans_compositor_t; + +struct _cairo_observer { + cairo_list_t link; + void (*callback) (cairo_observer_t *self, void *arg); +}; + +/** + * _cairo_hash_entry: + * + * A #cairo_hash_entry_t contains both a key and a value for + * #cairo_hash_table_t. User-derived types for #cairo_hash_entry_t must + * be type-compatible with this structure (eg. they must have a + * uintptr_t as the first parameter. The easiest way to get this + * is to use: + * + * typedef _my_entry { + * cairo_hash_entry_t base; + * ... Remainder of key and value fields here .. + * } my_entry_t; + * + * which then allows a pointer to my_entry_t to be passed to any of + * the #cairo_hash_table_t functions as follows without requiring a cast: + * + * _cairo_hash_table_insert (hash_table, &my_entry->base); + * + * IMPORTANT: The caller is responsible for initializing + * my_entry->base.hash with a hash code derived from the key. The + * essential property of the hash code is that keys_equal must never + * return %TRUE for two keys that have different hashes. The best hash + * code will reduce the frequency of two keys with the same code for + * which keys_equal returns %FALSE. + * + * Which parts of the entry make up the "key" and which part make up + * the value are entirely up to the caller, (as determined by the + * computation going into base.hash as well as the keys_equal + * function). A few of the #cairo_hash_table_t functions accept an entry + * which will be used exclusively as a "key", (indicated by a + * parameter name of key). In these cases, the value-related fields of + * the entry need not be initialized if so desired. + **/ +struct _cairo_hash_entry { + uintptr_t hash; +}; + +struct _cairo_array { + unsigned int size; + unsigned int num_elements; + unsigned int element_size; + char *elements; +}; + +/** + * _cairo_lcd_filter: + * @CAIRO_LCD_FILTER_DEFAULT: Use the default LCD filter for + * font backend and target device + * @CAIRO_LCD_FILTER_NONE: Do not perform LCD filtering + * @CAIRO_LCD_FILTER_INTRA_PIXEL: Intra-pixel filter + * @CAIRO_LCD_FILTER_FIR3: FIR filter with a 3x3 kernel + * @CAIRO_LCD_FILTER_FIR5: FIR filter with a 5x5 kernel + * + * The LCD filter specifies the low-pass filter applied to LCD-optimized + * bitmaps generated with an antialiasing mode of %CAIRO_ANTIALIAS_SUBPIXEL. + * + * Note: This API was temporarily made available in the public + * interface during the 1.7.x development series, but was made private + * before 1.8. + **/ +typedef enum _cairo_lcd_filter { + CAIRO_LCD_FILTER_DEFAULT, + CAIRO_LCD_FILTER_NONE, + CAIRO_LCD_FILTER_INTRA_PIXEL, + CAIRO_LCD_FILTER_FIR3, + CAIRO_LCD_FILTER_FIR5 +} cairo_lcd_filter_t; + +typedef enum _cairo_round_glyph_positions { + CAIRO_ROUND_GLYPH_POS_DEFAULT, + CAIRO_ROUND_GLYPH_POS_ON, + CAIRO_ROUND_GLYPH_POS_OFF +} cairo_round_glyph_positions_t; + +typedef struct { + unsigned int index; + double red, green, blue, alpha; +} cairo_palette_color_t; + +struct _cairo_font_options { + cairo_antialias_t antialias; + cairo_subpixel_order_t subpixel_order; + cairo_lcd_filter_t lcd_filter; + cairo_hint_style_t hint_style; + cairo_hint_metrics_t hint_metrics; + cairo_round_glyph_positions_t round_glyph_positions; + char *variations; + cairo_color_mode_t color_mode; + unsigned int palette_index; + cairo_palette_color_t *custom_palette; + unsigned int custom_palette_size; +}; + +struct _cairo_glyph_text_info { + const char *utf8; + int utf8_len; + + const cairo_text_cluster_t *clusters; + int num_clusters; + cairo_text_cluster_flags_t cluster_flags; +}; + + +/* XXX: Right now, the _cairo_color structure puts unpremultiplied + color in the doubles and premultiplied color in the shorts. Yes, + this is crazy insane, (but at least we don't export this + madness). I'm still working on a cleaner API, but in the meantime, + at least this does prevent precision loss in color when changing + alpha. */ +struct _cairo_color { + double red; + double green; + double blue; + double alpha; + + unsigned short red_short; + unsigned short green_short; + unsigned short blue_short; + unsigned short alpha_short; +}; + +struct _cairo_color_stop { + /* unpremultiplied */ + double red; + double green; + double blue; + double alpha; + + /* unpremultipled, for convenience */ + uint16_t red_short; + uint16_t green_short; + uint16_t blue_short; + uint16_t alpha_short; +}; + +typedef enum _cairo_paginated_mode { + CAIRO_PAGINATED_MODE_ANALYZE, /* analyze page regions */ + CAIRO_PAGINATED_MODE_RENDER, /* render page contents */ + CAIRO_PAGINATED_MODE_FALLBACK /* paint fallback images */ +} cairo_paginated_mode_t; + +typedef enum _cairo_internal_surface_type { + CAIRO_INTERNAL_SURFACE_TYPE_SNAPSHOT = 0x1000, + CAIRO_INTERNAL_SURFACE_TYPE_PAGINATED, + CAIRO_INTERNAL_SURFACE_TYPE_ANALYSIS, + CAIRO_INTERNAL_SURFACE_TYPE_OBSERVER, + CAIRO_INTERNAL_SURFACE_TYPE_TEST_FALLBACK, + CAIRO_INTERNAL_SURFACE_TYPE_TEST_PAGINATED, + CAIRO_INTERNAL_SURFACE_TYPE_TEST_WRAPPING, + CAIRO_INTERNAL_SURFACE_TYPE_NULL, + CAIRO_INTERNAL_SURFACE_TYPE_TYPE3_GLYPH, + CAIRO_INTERNAL_SURFACE_TYPE_QUARTZ_SNAPSHOT +} cairo_internal_surface_type_t; + +typedef enum _cairo_internal_device_type { + CAIRO_INTERNAL_DEVICE_TYPE_OBSERVER = 0x1000, +} cairo_device_surface_type_t; + +#define CAIRO_HAS_TEST_PAGINATED_SURFACE 1 + +typedef struct _cairo_slope { + cairo_fixed_t dx; + cairo_fixed_t dy; +} cairo_slope_t, cairo_distance_t; + +typedef struct _cairo_point_double { + double x; + double y; +} cairo_point_double_t; + +typedef struct _cairo_circle_double { + cairo_point_double_t center; + double radius; +} cairo_circle_double_t; + +typedef struct _cairo_distance_double { + double dx; + double dy; +} cairo_distance_double_t; + +typedef struct _cairo_box_double { + cairo_point_double_t p1; + cairo_point_double_t p2; +} cairo_box_double_t; + +typedef struct _cairo_line { + cairo_point_t p1; + cairo_point_t p2; +} cairo_line_t, cairo_box_t; + +typedef struct _cairo_trapezoid { + cairo_fixed_t top, bottom; + cairo_line_t left, right; +} cairo_trapezoid_t; + +typedef struct _cairo_point_int { + int x, y; +} cairo_point_int_t; + +#define CAIRO_RECT_INT_MIN (INT_MIN >> CAIRO_FIXED_FRAC_BITS) +#define CAIRO_RECT_INT_MAX (INT_MAX >> CAIRO_FIXED_FRAC_BITS) + +typedef enum _cairo_direction { + CAIRO_DIRECTION_FORWARD, + CAIRO_DIRECTION_REVERSE +} cairo_direction_t; + +typedef struct _cairo_edge { + cairo_line_t line; + int top, bottom; + int dir; +} cairo_edge_t; + +typedef struct _cairo_polygon { + cairo_status_t status; + + cairo_box_t extents; + cairo_box_t limit; + const cairo_box_t *limits; + int num_limits; + + int num_edges; + int edges_size; + cairo_edge_t *edges; + cairo_edge_t edges_embedded[32]; +} cairo_polygon_t; + +typedef cairo_warn cairo_status_t +(*cairo_spline_add_point_func_t) (void *closure, + const cairo_point_t *point, + const cairo_slope_t *tangent); + +typedef struct _cairo_spline_knots { + cairo_point_t a, b, c, d; +} cairo_spline_knots_t; + +typedef struct _cairo_spline { + cairo_spline_add_point_func_t add_point_func; + void *closure; + + cairo_spline_knots_t knots; + + cairo_slope_t initial_slope; + cairo_slope_t final_slope; + + cairo_bool_t has_point; + cairo_point_t last_point; +} cairo_spline_t; + +typedef struct _cairo_pen_vertex { + cairo_point_t point; + + cairo_slope_t slope_ccw; + cairo_slope_t slope_cw; +} cairo_pen_vertex_t; + +typedef struct _cairo_pen { + double radius; + double tolerance; + + int num_vertices; + cairo_pen_vertex_t *vertices; + cairo_pen_vertex_t vertices_embedded[32]; +} cairo_pen_t; + +typedef struct _cairo_stroke_style { + double line_width; + cairo_line_cap_t line_cap; + cairo_line_join_t line_join; + double miter_limit; + double *dash; + unsigned int num_dashes; + double dash_offset; + cairo_bool_t is_hairline; + double pre_hairline_line_width; +} cairo_stroke_style_t; + +typedef struct _cairo_format_masks { + int bpp; + unsigned long alpha_mask; + unsigned long red_mask; + unsigned long green_mask; + unsigned long blue_mask; +} cairo_format_masks_t; + +typedef enum { + CAIRO_STOCK_WHITE, + CAIRO_STOCK_BLACK, + CAIRO_STOCK_TRANSPARENT, + CAIRO_STOCK_NUM_COLORS, +} cairo_stock_t; + +typedef enum _cairo_image_transparency { + CAIRO_IMAGE_IS_OPAQUE, + CAIRO_IMAGE_HAS_BILEVEL_ALPHA, + CAIRO_IMAGE_HAS_ALPHA, + CAIRO_IMAGE_UNKNOWN +} cairo_image_transparency_t; + +typedef enum _cairo_image_color { + CAIRO_IMAGE_IS_COLOR, + CAIRO_IMAGE_IS_GRAYSCALE, + CAIRO_IMAGE_IS_MONOCHROME, + CAIRO_IMAGE_UNKNOWN_COLOR +} cairo_image_color_t; + + +struct _cairo_mime_data { + cairo_reference_count_t ref_count; + unsigned char *data; + unsigned long length; + cairo_destroy_func_t destroy; + void *closure; +}; + +/* + * A #cairo_unscaled_font_t is just an opaque handle we use in the + * glyph cache. + */ +typedef struct _cairo_unscaled_font { + cairo_hash_entry_t hash_entry; + cairo_reference_count_t ref_count; + const cairo_unscaled_font_backend_t *backend; +} cairo_unscaled_font_t; + +typedef enum _cairo_analysis_source { + CAIRO_ANALYSIS_SOURCE_PAINT, + CAIRO_ANALYSIS_SOURCE_MASK, + CAIRO_ANALYSIS_MASK_MASK, + CAIRO_ANALYSIS_SOURCE_FILL, + CAIRO_ANALYSIS_SOURCE_STROKE, + CAIRO_ANALYSIS_SOURCE_SHOW_GLYPHS, + CAIRO_ANALYSIS_SOURCE_NONE /* Used when analysis_source is not applicable. */ +} cairo_analysis_source_t; + +CAIRO_END_DECLS + +#endif /* CAIRO_TYPES_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-unicode.c b/local/recipes/libs/cairo/source/src/cairo-unicode.c new file mode 100644 index 0000000000..b96a3a2351 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-unicode.c @@ -0,0 +1,445 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * The code in this file is derived from GLib's gutf8.c and + * ultimately from libunicode. It is relicensed under the + * dual LGPL/MPL with permission of the original authors. + * + * Copyright © 1999 Tom Tromey + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Tom Tromey. + * and Red Hat, Inc. + * + * Contributor(s): + * Owen Taylor + */ + +#include "cairoint.h" +#include "cairo-error-private.h" + +#define UTF8_COMPUTE(Char, Mask, Len) \ + if (Char < 128) \ + { \ + Len = 1; \ + Mask = 0x7f; \ + } \ + else if ((Char & 0xe0) == 0xc0) \ + { \ + Len = 2; \ + Mask = 0x1f; \ + } \ + else if ((Char & 0xf0) == 0xe0) \ + { \ + Len = 3; \ + Mask = 0x0f; \ + } \ + else if ((Char & 0xf8) == 0xf0) \ + { \ + Len = 4; \ + Mask = 0x07; \ + } \ + else if ((Char & 0xfc) == 0xf8) \ + { \ + Len = 5; \ + Mask = 0x03; \ + } \ + else if ((Char & 0xfe) == 0xfc) \ + { \ + Len = 6; \ + Mask = 0x01; \ + } \ + else \ + Len = -1; + +#define UTF8_LENGTH(Char) \ + ((Char) < 0x80 ? 1 : \ + ((Char) < 0x800 ? 2 : \ + ((Char) < 0x10000 ? 3 : \ + ((Char) < 0x200000 ? 4 : \ + ((Char) < 0x4000000 ? 5 : 6))))) + +#define UTF8_GET(Result, Chars, Count, Mask, Len) \ + (Result) = (Chars)[0] & (Mask); \ + for ((Count) = 1; (Count) < (Len); ++(Count)) \ + { \ + if (((Chars)[(Count)] & 0xc0) != 0x80) \ + { \ + (Result) = -1; \ + break; \ + } \ + (Result) <<= 6; \ + (Result) |= ((Chars)[(Count)] & 0x3f); \ + } + +#define UNICODE_VALID(Char) \ + ((Char) < 0x110000 && \ + (((Char) & 0xFFFFF800) != 0xD800)) + +static const char utf8_skip_data[256] = { + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, + 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, + 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,6,6,1,1 +}; + +#define UTF8_NEXT_CHAR(p) ((p) + utf8_skip_data[*(unsigned char *)(p)]) + +/* Converts a sequence of bytes encoded as UTF-8 to a Unicode character. + * If @p does not point to a valid UTF-8 encoded character, results are + * undefined. + **/ +static uint32_t +_utf8_get_char (const unsigned char *p) +{ + int i, mask = 0, len; + uint32_t result; + unsigned char c = (unsigned char) *p; + + UTF8_COMPUTE (c, mask, len); + if (len == -1) + return (uint32_t)-1; + UTF8_GET (result, p, i, mask, len); + + return result; +} + +/* Like _utf8_get_char, but take a maximum length + * and return (uint32_t)-2 on incomplete trailing character + */ +static uint32_t +_utf8_get_char_extended (const unsigned char *p, + long max_len) +{ + int i, len; + uint32_t wc = (unsigned char) *p; + + if (wc < 0x80) { + return wc; + } else if (wc < 0xc0) { + return (uint32_t)-1; + } else if (wc < 0xe0) { + len = 2; + wc &= 0x1f; + } else if (wc < 0xf0) { + len = 3; + wc &= 0x0f; + } else if (wc < 0xf8) { + len = 4; + wc &= 0x07; + } else if (wc < 0xfc) { + len = 5; + wc &= 0x03; + } else if (wc < 0xfe) { + len = 6; + wc &= 0x01; + } else { + return (uint32_t)-1; + } + + if (max_len >= 0 && len > max_len) { + for (i = 1; i < max_len; i++) { + if ((((unsigned char *)p)[i] & 0xc0) != 0x80) + return (uint32_t)-1; + } + return (uint32_t)-2; + } + + for (i = 1; i < len; ++i) { + uint32_t ch = ((unsigned char *)p)[i]; + + if ((ch & 0xc0) != 0x80) { + if (ch) + return (uint32_t)-1; + else + return (uint32_t)-2; + } + + wc <<= 6; + wc |= (ch & 0x3f); + } + + if (UTF8_LENGTH(wc) != len) + return (uint32_t)-1; + + return wc; +} + +/** + * _cairo_utf8_get_char_validated: + * @p: a UTF-8 string + * @unicode: location to store one Unicode character + * + * Decodes the first character of a valid UTF-8 string, and returns + * the number of bytes consumed. + * + * Note that the string should be valid. Do not use this without + * validating the string first. + * + * Returns: the number of bytes forming the character returned. + **/ +int +_cairo_utf8_get_char_validated (const char *p, + uint32_t *unicode) +{ + int i, mask = 0, len; + uint32_t result; + unsigned char c = (unsigned char) *p; + + UTF8_COMPUTE (c, mask, len); + if (len == -1) { + if (unicode) + *unicode = (uint32_t)-1; + return 1; + } + UTF8_GET (result, p, i, mask, len); + + if (unicode) + *unicode = result; + return len; +} + +/** + * _cairo_utf8_to_ucs4: + * @str: an UTF-8 string + * @len: length of @str in bytes, or -1 if it is nul-terminated. + * If @len is supplied and the string has an embedded nul + * byte, only the portion before the nul byte is converted. + * @result: location to store a pointer to a newly allocated UTF-32 + * string (always native endian), or %NULL. Free with free(). A 0 + * word will be written after the last character. + * @items_written: location to store number of 32-bit words + * written. (Not including the trailing 0) + * + * Converts a UTF-8 string to UCS-4. UCS-4 is an encoding of Unicode + * with 1 32-bit word per character. The string is validated to + * consist entirely of valid Unicode characters. + * + * Return value: %CAIRO_STATUS_SUCCESS if the entire string was + * successfully converted. %CAIRO_STATUS_INVALID_STRING if an + * invalid sequence was found. + **/ +cairo_status_t +_cairo_utf8_to_ucs4 (const char *str, + int len, + uint32_t **result, + int *items_written) +{ + uint32_t *str32 = NULL; + int n_chars, i; + const unsigned char *in; + const unsigned char * const ustr = (const unsigned char *) str; + + in = ustr; + n_chars = 0; + while ((len < 0 || ustr + len - in > 0) && *in) + { + uint32_t wc = _utf8_get_char_extended (in, ustr + len - in); + if (wc & 0x80000000 || !UNICODE_VALID (wc)) + return _cairo_error (CAIRO_STATUS_INVALID_STRING); + + n_chars++; + if (n_chars == INT_MAX) + return _cairo_error (CAIRO_STATUS_INVALID_STRING); + + in = UTF8_NEXT_CHAR (in); + } + + if (result) { + str32 = _cairo_malloc_ab (n_chars + 1, sizeof (uint32_t)); + if (!str32) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + in = ustr; + for (i=0; i < n_chars; i++) { + str32[i] = _utf8_get_char (in); + in = UTF8_NEXT_CHAR (in); + } + str32[i] = 0; + + *result = str32; + } + + if (items_written) + *items_written = n_chars; + + return CAIRO_STATUS_SUCCESS; +} + +/** + * _cairo_ucs4_to_utf8: + * @unicode: a UCS-4 character + * @utf8: buffer to write utf8 string into. Must have at least 4 bytes + * space available. Or %NULL. + * + * This space left intentionally blank. + * + * Return value: Number of bytes in the utf8 string or 0 if an invalid + * unicode character + **/ +int +_cairo_ucs4_to_utf8 (uint32_t unicode, + char *utf8) +{ + int bytes; + char *p; + + if (unicode < 0x80) { + if (utf8) + *utf8 = unicode; + return 1; + } else if (unicode < 0x800) { + bytes = 2; + } else if (unicode < 0x10000) { + bytes = 3; + } else if (unicode < 0x200000) { + bytes = 4; + } else { + return 0; + } + + if (!utf8) + return bytes; + + p = utf8 + bytes; + while (p > utf8) { + *--p = 0x80 | (unicode & 0x3f); + unicode >>= 6; + } + *p |= 0xf0 << (4 - bytes); + + return bytes; +} + +/** + * _cairo_ucs4_to_utf16: + * @unicode: a UCS-4 character + * @utf16: buffer to write utf16 string into. Must have at least 2 + * elements. Or %NULL. + * + * This space left intentionally blank. + * + * Return value: Number of elements in the utf16 string or 0 if an + * invalid unicode character + **/ +int +_cairo_ucs4_to_utf16 (uint32_t unicode, + uint16_t *utf16) +{ + if (unicode < 0x10000) { + if (utf16) + utf16[0] = unicode; + return 1; + } else if (unicode < 0x110000) { + if (utf16) { + utf16[0] = (unicode - 0x10000) / 0x400 + 0xd800; + utf16[1] = (unicode - 0x10000) % 0x400 + 0xdc00; + } + return 2; + } else { + return 0; + } +} + +#if CAIRO_HAS_UTF8_TO_UTF16 +/** + * _cairo_utf8_to_utf16: + * @str: an UTF-8 string + * @len: length of @str in bytes, or -1 if it is nul-terminated. + * If @len is supplied and the string has an embedded nul + * byte, only the portion before the nul byte is converted. + * @result: location to store a pointer to a newly allocated UTF-16 + * string (always native endian). Free with free(). A 0 + * word will be written after the last character. + * @items_written: location to store number of 16-bit words + * written. (Not including the trailing 0) + * + * Converts a UTF-8 string to UTF-16. UTF-16 is an encoding of Unicode + * where characters are represented either as a single 16-bit word, or + * as a pair of 16-bit "surrogates". The string is validated to + * consist entirely of valid Unicode characters. + * + * Return value: %CAIRO_STATUS_SUCCESS if the entire string was + * successfully converted. %CAIRO_STATUS_INVALID_STRING if an + * an invalid sequence was found. + **/ +cairo_status_t +_cairo_utf8_to_utf16 (const char *str, + int len, + uint16_t **result, + int *items_written) +{ + uint16_t *str16 = NULL; + int n16, i; + const unsigned char *in; + const unsigned char * const ustr = (const unsigned char *) str; + + in = ustr; + n16 = 0; + while ((len < 0 || ustr + len - in > 0) && *in) { + uint32_t wc = _utf8_get_char_extended (in, ustr + len - in); + if (wc & 0x80000000 || !UNICODE_VALID (wc)) + return _cairo_error (CAIRO_STATUS_INVALID_STRING); + + if (wc < 0x10000) + n16 += 1; + else + n16 += 2; + + if (n16 == INT_MAX - 1 || n16 == INT_MAX) + return _cairo_error (CAIRO_STATUS_INVALID_STRING); + + in = UTF8_NEXT_CHAR (in); + } + + str16 = _cairo_malloc_ab (n16 + 1, sizeof (uint16_t)); + if (!str16) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + in = ustr; + for (i = 0; i < n16;) { + uint32_t wc = _utf8_get_char (in); + + i += _cairo_ucs4_to_utf16 (wc, str16 + i); + + in = UTF8_NEXT_CHAR (in); + } + + str16[i] = 0; + + *result = str16; + if (items_written) + *items_written = n16; + + return CAIRO_STATUS_SUCCESS; +} +#endif diff --git a/local/recipes/libs/cairo/source/src/cairo-user-font-private.h b/local/recipes/libs/cairo/source/src/cairo-user-font-private.h new file mode 100644 index 0000000000..d54ef78b44 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-user-font-private.h @@ -0,0 +1,46 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006, 2008 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Kristian Høgsberg + * Behdad Esfahbod + */ + +#ifndef CAIRO_USER_FONT_PRIVATE_H +#define CAIRO_USER_FONT_PRIVATE_H + +#include "cairo.h" +#include "cairo-compiler-private.h" + +cairo_private cairo_bool_t +_cairo_font_face_is_user (cairo_font_face_t *font_face); + +#endif /* CAIRO_USER_FONT_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-user-font.c b/local/recipes/libs/cairo/source/src/cairo-user-font.c new file mode 100644 index 0000000000..56525d5c15 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-user-font.c @@ -0,0 +1,1206 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006, 2008 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Kristian Høgsberg + * Behdad Esfahbod + */ + +#include "cairoint.h" +#include "cairo-user-font-private.h" +#include "cairo-recording-surface-private.h" +#include "cairo-analysis-surface-private.h" +#include "cairo-error-private.h" + +/** + * SECTION:cairo-user-fonts + * @Title:User Fonts + * @Short_Description: Font support with font data provided by the user + * + * The user-font feature allows the cairo user to provide drawings for glyphs + * in a font. This is most useful in implementing fonts in non-standard + * formats, like SVG fonts and Flash fonts, but can also be used by games and + * other application to draw "funky" fonts. + **/ + +/** + * CAIRO_HAS_USER_FONT: + * + * Defined if the user font backend is available. + * This macro can be used to conditionally compile backend-specific code. + * The user font backend is always built in versions of cairo that support + * this feature (1.8 and later). + * + * Since: 1.8 + **/ + +typedef struct _cairo_user_scaled_font_methods { + cairo_user_scaled_font_init_func_t init; + cairo_user_scaled_font_render_glyph_func_t render_color_glyph; + cairo_user_scaled_font_render_glyph_func_t render_glyph; + cairo_user_scaled_font_unicode_to_glyph_func_t unicode_to_glyph; + cairo_user_scaled_font_text_to_glyphs_func_t text_to_glyphs; +} cairo_user_scaled_font_methods_t; + +typedef struct _cairo_user_font_face { + cairo_font_face_t base; + + /* Set to true after first scaled font is created. At that point, + * the scaled_font_methods cannot change anymore. */ + cairo_bool_t immutable; + cairo_bool_t has_color; + cairo_user_scaled_font_methods_t scaled_font_methods; +} cairo_user_font_face_t; + +typedef struct _cairo_user_scaled_font { + cairo_scaled_font_t base; + + cairo_text_extents_t default_glyph_extents; + + /* space to compute extents in, and factors to convert back to user space */ + cairo_matrix_t extent_scale; + double extent_x_scale; + double extent_y_scale; + + /* multiplier for metrics hinting */ + double snap_x_scale; + double snap_y_scale; + + cairo_pattern_t *foreground_marker; + cairo_pattern_t *foreground_pattern; + cairo_bool_t foreground_marker_used; + cairo_bool_t foreground_colors_used; + +} cairo_user_scaled_font_t; + +/* #cairo_user_scaled_font_t */ + +static cairo_surface_t * +_cairo_user_scaled_font_create_recording_surface (cairo_user_scaled_font_t *scaled_font, + cairo_bool_t color, + const cairo_color_t *foreground_color) +{ + cairo_content_t content; + + if (color) { + content = CAIRO_CONTENT_COLOR_ALPHA; + } else { + content = scaled_font->base.options.antialias == CAIRO_ANTIALIAS_SUBPIXEL ? + CAIRO_CONTENT_COLOR_ALPHA : + CAIRO_CONTENT_ALPHA; + } + + if (scaled_font->foreground_pattern) + cairo_pattern_destroy (scaled_font->foreground_pattern); + + scaled_font->foreground_marker_used = FALSE; + scaled_font->foreground_colors_used = FALSE; + if (foreground_color) { + scaled_font->foreground_pattern = _cairo_pattern_create_solid (foreground_color); + } else { + scaled_font->foreground_pattern = cairo_pattern_create_rgb (0, 0, 0); + } + + return cairo_recording_surface_create (content, NULL); +} + +static cairo_t * +_cairo_user_scaled_font_create_recording_context (const cairo_user_scaled_font_t *scaled_font, + cairo_surface_t *recording_surface, + cairo_bool_t color) +{ + cairo_t *cr; + + cr = cairo_create (recording_surface); + + if (!_cairo_matrix_is_scale_0 (&scaled_font->base.scale)) { + cairo_matrix_t scale; + scale = scaled_font->base.scale; + scale.x0 = scale.y0 = 0.; + cairo_set_matrix (cr, &scale); + } + + cairo_set_font_size (cr, 1.0); + cairo_set_font_options (cr, &scaled_font->base.options); + if (!color) + cairo_set_source_rgb (cr, 1., 1., 1.); + + return cr; +} + +static cairo_int_status_t +_cairo_user_scaled_glyph_init_record_glyph (cairo_user_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + const cairo_color_t *foreground_color) +{ + cairo_user_font_face_t *face = + (cairo_user_font_face_t *) scaled_font->base.font_face; + cairo_text_extents_t extents = scaled_font->default_glyph_extents; + cairo_surface_t *recording_surface = NULL; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_t *cr; + cairo_bool_t foreground_used = FALSE; + + if (!face->scaled_font_methods.render_color_glyph && !face->scaled_font_methods.render_glyph) + return CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED; + + /* special case for 0 rank matrix (as in _cairo_scaled_font_init): empty surface */ + if (_cairo_matrix_is_scale_0 (&scaled_font->base.scale)) { + recording_surface = _cairo_user_scaled_font_create_recording_surface (scaled_font, FALSE, foreground_color); + _cairo_scaled_glyph_set_recording_surface (scaled_glyph, + &scaled_font->base, + recording_surface, + NULL); + } else { + status = CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED; + + if (face->scaled_font_methods.render_color_glyph && + scaled_font->base.options.color_mode != CAIRO_COLOR_MODE_NO_COLOR) + { + recording_surface = _cairo_user_scaled_font_create_recording_surface (scaled_font, TRUE, foreground_color); + + cr = _cairo_user_scaled_font_create_recording_context (scaled_font, recording_surface, TRUE); + status = face->scaled_font_methods.render_color_glyph ((cairo_scaled_font_t *)scaled_font, + _cairo_scaled_glyph_index(scaled_glyph), + cr, &extents); + if (status == CAIRO_INT_STATUS_SUCCESS) { + status = cairo_status (cr); + scaled_glyph->color_glyph = TRUE; + scaled_glyph->color_glyph_set = TRUE; + } + + cairo_destroy (cr); + foreground_used = scaled_font->foreground_marker_used || scaled_font->foreground_colors_used; + } + + if (status == (cairo_int_status_t)CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED && + face->scaled_font_methods.render_glyph) { + if (recording_surface) + cairo_surface_destroy (recording_surface); + recording_surface = _cairo_user_scaled_font_create_recording_surface (scaled_font, FALSE, foreground_color); + recording_surface->device_transform.x0 = .25 * _cairo_scaled_glyph_xphase (scaled_glyph); + recording_surface->device_transform.y0 = .25 * _cairo_scaled_glyph_yphase (scaled_glyph); + + cr = _cairo_user_scaled_font_create_recording_context (scaled_font, recording_surface, FALSE); + + status = face->scaled_font_methods.render_glyph ((cairo_scaled_font_t *)scaled_font, + _cairo_scaled_glyph_index(scaled_glyph), + cr, &extents); + if (status == CAIRO_INT_STATUS_SUCCESS) { + status = cairo_status (cr); + scaled_glyph->color_glyph = FALSE; + scaled_glyph->color_glyph_set = TRUE; + } + + cairo_destroy (cr); + foreground_used = FALSE; + } + + if (status != CAIRO_INT_STATUS_SUCCESS) { + if (recording_surface) + cairo_surface_destroy (recording_surface); + return status; + } + + _cairo_scaled_glyph_set_recording_surface (scaled_glyph, + &scaled_font->base, + recording_surface, + foreground_used ? foreground_color : NULL); + } + + /* set metrics */ + + if (extents.width == 0.) { + cairo_box_t bbox; + double x1, y1, x2, y2; + double x_scale, y_scale; + + /* Compute extents.x/y/width/height from recording_surface, + * in font space. + */ + status = _cairo_recording_surface_get_bbox ((cairo_recording_surface_t *) recording_surface, + &bbox, + &scaled_font->extent_scale); + if (unlikely (status)) + return status; + + _cairo_box_to_doubles (&bbox, &x1, &y1, &x2, &y2); + + x_scale = scaled_font->extent_x_scale; + y_scale = scaled_font->extent_y_scale; + extents.x_bearing = x1 * x_scale; + extents.y_bearing = y1 * y_scale; + extents.width = (x2 - x1) * x_scale; + extents.height = (y2 - y1) * y_scale; + } + + if (scaled_font->base.options.hint_metrics != CAIRO_HINT_METRICS_OFF) { + extents.x_advance = _cairo_lround (extents.x_advance / scaled_font->snap_x_scale) * scaled_font->snap_x_scale; + extents.y_advance = _cairo_lround (extents.y_advance / scaled_font->snap_y_scale) * scaled_font->snap_y_scale; + } + + _cairo_scaled_glyph_set_metrics (scaled_glyph, + &scaled_font->base, + &extents); + + return status; +} + +static cairo_int_status_t +_cairo_user_scaled_glyph_init_surface (cairo_user_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_glyph_info_t info, + const cairo_color_t *foreground_color) +{ + cairo_surface_t *surface; + cairo_format_t format; + int width, height; + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_bool_t foreground_used; + + /* TODO + * extend the glyph cache to support argb glyphs. + * need to figure out the semantics and interaction with subpixel + * rendering first. + */ + + /* Only one info type at a time handled in this function */ + assert (info == CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE || info == CAIRO_SCALED_GLYPH_INFO_SURFACE); + + width = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.x) - + _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.x); + height = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.y) - + _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.y); + + if (info == CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) { + format = CAIRO_FORMAT_ARGB32; + } else { + switch (scaled_font->base.options.antialias) { + default: + case CAIRO_ANTIALIAS_DEFAULT: + case CAIRO_ANTIALIAS_FAST: + case CAIRO_ANTIALIAS_GOOD: + case CAIRO_ANTIALIAS_GRAY: + format = CAIRO_FORMAT_A8; + break; + case CAIRO_ANTIALIAS_NONE: + format = CAIRO_FORMAT_A1; + break; + case CAIRO_ANTIALIAS_BEST: + case CAIRO_ANTIALIAS_SUBPIXEL: + format = CAIRO_FORMAT_ARGB32; + break; + } + } + surface = cairo_image_surface_create (format, width, height); + + cairo_surface_set_device_offset (surface, + - _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.x), + - _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.y)); + + if (info == CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) { + status = _cairo_recording_surface_replay_with_foreground_color (scaled_glyph->recording_surface, + surface, + foreground_color, + &foreground_used); + + } else { + status = _cairo_recording_surface_replay (scaled_glyph->recording_surface, surface); + foreground_used = FALSE; + } + if (unlikely (status)) { + cairo_surface_destroy(surface); + return status; + } + + foreground_used = foreground_used || scaled_glyph->recording_uses_foreground_color; + + if (info == CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) { + _cairo_scaled_glyph_set_color_surface (scaled_glyph, + &scaled_font->base, + (cairo_image_surface_t *)surface, + foreground_used ? foreground_color : NULL); + surface = NULL; + } else { + _cairo_scaled_glyph_set_surface (scaled_glyph, + &scaled_font->base, + (cairo_image_surface_t *) surface); + surface = NULL; + } + + if (surface) + cairo_surface_destroy (surface); + + return status; +} + +static void +_cairo_user_scaled_glyph_fini (void *abstract_font) +{ + cairo_user_scaled_font_t *scaled_font = abstract_font; + + if (scaled_font->foreground_pattern) + cairo_pattern_destroy (scaled_font->foreground_pattern); + + if (scaled_font->foreground_marker) + cairo_pattern_destroy (scaled_font->foreground_marker); +} + +static cairo_int_status_t +_cairo_user_scaled_glyph_init (void *abstract_font, + cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_glyph_info_t info, + const cairo_color_t *foreground_color) +{ + cairo_int_status_t status = CAIRO_STATUS_SUCCESS; + cairo_user_scaled_font_t *scaled_font = abstract_font; + + if (!scaled_glyph->recording_surface || (info & CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE)) { + status = _cairo_user_scaled_glyph_init_record_glyph (scaled_font, scaled_glyph, foreground_color); + if (status) + return status; + } + + if (info & CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) { + if (!scaled_glyph->color_glyph ) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_user_scaled_glyph_init_surface (scaled_font, + scaled_glyph, + CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE, + foreground_color); + if (status) + return status; + } + + if (info & CAIRO_SCALED_GLYPH_INFO_SURFACE) { + status = _cairo_user_scaled_glyph_init_surface (scaled_font, + scaled_glyph, + CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL); + if (status) + return status; + } + + if (info & CAIRO_SCALED_GLYPH_INFO_PATH) { + cairo_path_fixed_t *path = _cairo_path_fixed_create (); + if (!path) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_recording_surface_get_path (scaled_glyph->recording_surface, path); + if (unlikely (status)) { + _cairo_path_fixed_destroy (path); + return status; + } + + _cairo_scaled_glyph_set_path (scaled_glyph, + &scaled_font->base, + path); + } + + return status; +} + +static unsigned long +_cairo_user_ucs4_to_index (void *abstract_font, + uint32_t ucs4) +{ + cairo_user_scaled_font_t *scaled_font = abstract_font; + cairo_user_font_face_t *face = + (cairo_user_font_face_t *) scaled_font->base.font_face; + unsigned long glyph = 0; + + if (face->scaled_font_methods.unicode_to_glyph) { + cairo_status_t status; + + status = face->scaled_font_methods.unicode_to_glyph (&scaled_font->base, + ucs4, &glyph); + + if (status == CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED) + goto not_implemented; + + if (status != CAIRO_STATUS_SUCCESS) { + status = _cairo_scaled_font_set_error (&scaled_font->base, status); + glyph = 0; + } + + } else { +not_implemented: + glyph = ucs4; + } + + return glyph; +} + +static cairo_bool_t +_cairo_user_has_color_glyphs (void *abstract_font) +{ + cairo_user_scaled_font_t *scaled_font = abstract_font; + cairo_user_font_face_t *face = + (cairo_user_font_face_t *) scaled_font->base.font_face; + + return face->has_color; +} + +static cairo_int_status_t +_cairo_user_text_to_glyphs (void *abstract_font, + double x, + double y, + const char *utf8, + int utf8_len, + cairo_glyph_t **glyphs, + int *num_glyphs, + cairo_text_cluster_t **clusters, + int *num_clusters, + cairo_text_cluster_flags_t *cluster_flags) +{ + cairo_int_status_t status = CAIRO_INT_STATUS_UNSUPPORTED; + + cairo_user_scaled_font_t *scaled_font = abstract_font; + cairo_user_font_face_t *face = + (cairo_user_font_face_t *) scaled_font->base.font_face; + + if (face->scaled_font_methods.text_to_glyphs) { + int i; + cairo_glyph_t *orig_glyphs = *glyphs; + int orig_num_glyphs = *num_glyphs; + + status = face->scaled_font_methods.text_to_glyphs (&scaled_font->base, + utf8, utf8_len, + glyphs, num_glyphs, + clusters, num_clusters, cluster_flags); + + if (status != CAIRO_INT_STATUS_SUCCESS && + status != CAIRO_INT_STATUS_USER_FONT_NOT_IMPLEMENTED) + return status; + + if (status == CAIRO_INT_STATUS_USER_FONT_NOT_IMPLEMENTED || + *num_glyphs < 0) { + if (orig_glyphs != *glyphs) { + cairo_glyph_free (*glyphs); + *glyphs = orig_glyphs; + } + *num_glyphs = orig_num_glyphs; + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + /* Convert from font space to user space and add x,y */ + for (i = 0; i < *num_glyphs; i++) { + double gx = (*glyphs)[i].x; + double gy = (*glyphs)[i].y; + + cairo_matrix_transform_point (&scaled_font->base.font_matrix, + &gx, &gy); + + (*glyphs)[i].x = gx + x; + (*glyphs)[i].y = gy + y; + } + } + + return status; +} + +static cairo_status_t +_cairo_user_font_face_scaled_font_create (void *abstract_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options, + cairo_scaled_font_t **scaled_font); + +static cairo_status_t +_cairo_user_font_face_create_for_toy (cairo_toy_font_face_t *toy_face, + cairo_font_face_t **font_face) +{ + return _cairo_font_face_twin_create_for_toy (toy_face, font_face); +} + +static const cairo_scaled_font_backend_t _cairo_user_scaled_font_backend = { + CAIRO_FONT_TYPE_USER, + _cairo_user_scaled_glyph_fini, + _cairo_user_scaled_glyph_init, + _cairo_user_text_to_glyphs, + _cairo_user_ucs4_to_index, + NULL, /* load_truetype_table */ + NULL, /* index_to_ucs4 */ + NULL, /* is_synthetic */ + NULL, /* index_to_glyph_name */ + NULL, /* load_type1_data */ + _cairo_user_has_color_glyphs, +}; + +/* #cairo_user_font_face_t */ + +static cairo_status_t +_cairo_user_font_face_scaled_font_create (void *abstract_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options, + cairo_scaled_font_t **scaled_font) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + cairo_user_font_face_t *font_face = abstract_face; + cairo_user_scaled_font_t *user_scaled_font = NULL; + cairo_font_extents_t font_extents = {1., 0., 1., 1., 0.}; + + font_face->immutable = TRUE; + + user_scaled_font = _cairo_calloc (sizeof (cairo_user_scaled_font_t)); + if (unlikely (user_scaled_font == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = _cairo_scaled_font_init (&user_scaled_font->base, + &font_face->base, + font_matrix, ctm, options, + &_cairo_user_scaled_font_backend); + + if (unlikely (status)) { + free (user_scaled_font); + return status; + } + + user_scaled_font->foreground_pattern = NULL; + user_scaled_font->foreground_marker = _cairo_pattern_create_foreground_marker (); + + /* XXX metrics hinting? */ + + /* compute a normalized version of font scale matrix to compute + * extents in. This is to minimize error caused by the cairo_fixed_t + * representation. */ + { + double fixed_scale, x_scale, y_scale; + + user_scaled_font->snap_x_scale = 1.0; + user_scaled_font->snap_y_scale = 1.0; + user_scaled_font->extent_scale = user_scaled_font->base.scale_inverse; + status = _cairo_matrix_compute_basis_scale_factors (&user_scaled_font->extent_scale, + &x_scale, &y_scale, + 1); + if (status == CAIRO_STATUS_SUCCESS) { + + if (x_scale == 0) x_scale = 1.; + if (y_scale == 0) y_scale = 1.; + + user_scaled_font->snap_x_scale = x_scale; + user_scaled_font->snap_y_scale = y_scale; + + /* since glyphs are pretty much 1.0x1.0, we can reduce error by + * scaling to a larger square. say, 1024.x1024. */ + fixed_scale = 1024.; + x_scale /= fixed_scale; + y_scale /= fixed_scale; + + cairo_matrix_scale (&user_scaled_font->extent_scale, 1. / x_scale, 1. / y_scale); + + user_scaled_font->extent_x_scale = x_scale; + user_scaled_font->extent_y_scale = y_scale; + } + } + + if (status == CAIRO_STATUS_SUCCESS && + font_face->scaled_font_methods.init != NULL) + { + /* Lock the scaled_font mutex such that user doesn't accidentally try + * to use it just yet. */ + CAIRO_MUTEX_LOCK (user_scaled_font->base.mutex); + + /* Give away fontmap lock such that user-font can use other fonts */ + status = _cairo_scaled_font_register_placeholder_and_unlock_font_map (&user_scaled_font->base); + if (status == CAIRO_STATUS_SUCCESS) { + cairo_surface_t *recording_surface; + cairo_t *cr; + + recording_surface = _cairo_user_scaled_font_create_recording_surface (user_scaled_font, FALSE, NULL); + cr = _cairo_user_scaled_font_create_recording_context (user_scaled_font, recording_surface, FALSE); + cairo_surface_destroy (recording_surface); + + status = font_face->scaled_font_methods.init (&user_scaled_font->base, + cr, + &font_extents); + + if (status == CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED) + status = CAIRO_STATUS_SUCCESS; + + if (status == CAIRO_STATUS_SUCCESS) + status = cairo_status (cr); + + cairo_destroy (cr); + + _cairo_scaled_font_unregister_placeholder_and_lock_font_map (&user_scaled_font->base); + } + + CAIRO_MUTEX_UNLOCK (user_scaled_font->base.mutex); + } + + if (status == CAIRO_STATUS_SUCCESS) + status = _cairo_scaled_font_set_metrics (&user_scaled_font->base, &font_extents); + + if (status != CAIRO_STATUS_SUCCESS) { + _cairo_scaled_font_fini (&user_scaled_font->base); + free (user_scaled_font); + } else { + user_scaled_font->default_glyph_extents.x_bearing = 0.; + user_scaled_font->default_glyph_extents.y_bearing = -font_extents.ascent; + user_scaled_font->default_glyph_extents.width = 0.; + user_scaled_font->default_glyph_extents.height = font_extents.ascent + font_extents.descent; + user_scaled_font->default_glyph_extents.x_advance = font_extents.max_x_advance; + user_scaled_font->default_glyph_extents.y_advance = 0.; + + *scaled_font = &user_scaled_font->base; + } + + return status; +} + +const cairo_font_face_backend_t _cairo_user_font_face_backend = { + CAIRO_FONT_TYPE_USER, + _cairo_user_font_face_create_for_toy, + _cairo_font_face_destroy, + _cairo_user_font_face_scaled_font_create +}; + + +cairo_bool_t +_cairo_font_face_is_user (cairo_font_face_t *font_face) +{ + return font_face->backend == &_cairo_user_font_face_backend; +} + +/* Implement the public interface */ + +/** + * cairo_user_font_face_create: + * + * Creates a new user font-face. + * + * Use the setter functions to associate callbacks with the returned + * user font. The only mandatory callback is render_glyph. + * + * After the font-face is created, the user can attach arbitrary data + * (the actual font data) to it using cairo_font_face_set_user_data() + * and access it from the user-font callbacks by using + * cairo_scaled_font_get_font_face() followed by + * cairo_font_face_get_user_data(). + * + * Return value: a newly created #cairo_font_face_t. Free with + * cairo_font_face_destroy() when you are done using it. + * + * Since: 1.8 + **/ +cairo_font_face_t * +cairo_user_font_face_create (void) +{ + cairo_user_font_face_t *font_face; + + font_face = _cairo_calloc (sizeof (cairo_user_font_face_t)); + if (!font_face) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_font_face_t *)&_cairo_font_face_nil; + } + + _cairo_font_face_init (&font_face->base, &_cairo_user_font_face_backend); + + font_face->immutable = FALSE; + font_face->has_color = FALSE; + memset (&font_face->scaled_font_methods, 0, sizeof (font_face->scaled_font_methods)); + + return &font_face->base; +} + +/* User-font method setters */ + + +/** + * cairo_user_font_face_set_init_func: + * @font_face: A user font face + * @init_func: The init callback, or %NULL + * + * Sets the scaled-font initialization function of a user-font. + * See #cairo_user_scaled_font_init_func_t for details of how the callback + * works. + * + * The font-face should not be immutable or a %CAIRO_STATUS_USER_FONT_IMMUTABLE + * error will occur. A user font-face is immutable as soon as a scaled-font + * is created from it. + * + * Since: 1.8 + **/ +void +cairo_user_font_face_set_init_func (cairo_font_face_t *font_face, + cairo_user_scaled_font_init_func_t init_func) +{ + cairo_user_font_face_t *user_font_face; + + if (font_face->status) + return; + + if (! _cairo_font_face_is_user (font_face)) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH)) + return; + } + + user_font_face = (cairo_user_font_face_t *) font_face; + if (user_font_face->immutable) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_USER_FONT_IMMUTABLE)) + return; + } + user_font_face->scaled_font_methods.init = init_func; +} + +/** + * cairo_user_font_face_set_render_color_glyph_func: + * @font_face: A user font face + * @render_glyph_func: The render_glyph callback, or %NULL + * + * Sets the color glyph rendering function of a user-font. + * See #cairo_user_scaled_font_render_glyph_func_t for details of how the callback + * works. + * + * The font-face should not be immutable or a %CAIRO_STATUS_USER_FONT_IMMUTABLE + * error will occur. A user font-face is immutable as soon as a scaled-font + * is created from it. + * + * The render_glyph callback is the only mandatory callback of a + * user-font. At least one of + * cairo_user_font_face_set_render_color_glyph_func() or + * cairo_user_font_face_set_render_glyph_func() must be called to set + * a render callback. If both callbacks are set, the color glyph + * render callback is invoked first. If the color glyph render + * callback returns %CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED, the + * non-color version of the callback is invoked. + * + * If the callback is %NULL and a glyph is tried to be rendered using + * @font_face, a %CAIRO_STATUS_USER_FONT_ERROR will occur. + * + * Since: 1.18 + **/ +void +cairo_user_font_face_set_render_color_glyph_func (cairo_font_face_t *font_face, + cairo_user_scaled_font_render_glyph_func_t render_glyph_func) +{ + cairo_user_font_face_t *user_font_face; + + if (font_face->status) + return; + + if (! _cairo_font_face_is_user (font_face)) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH)) + return; + } + + user_font_face = (cairo_user_font_face_t *) font_face; + if (user_font_face->immutable) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_USER_FONT_IMMUTABLE)) + return; + } + user_font_face->scaled_font_methods.render_color_glyph = render_glyph_func; + user_font_face->has_color = render_glyph_func ? TRUE : FALSE; +} + +/** + * cairo_user_font_face_set_render_glyph_func: + * @font_face: A user font face + * @render_glyph_func: The render_glyph callback, or %NULL + * + * Sets the glyph rendering function of a user-font. + * See #cairo_user_scaled_font_render_glyph_func_t for details of how the callback + * works. + * + * The font-face should not be immutable or a %CAIRO_STATUS_USER_FONT_IMMUTABLE + * error will occur. A user font-face is immutable as soon as a scaled-font + * is created from it. + * + * The render_glyph callback is the only mandatory callback of a + * user-font. At least one of + * cairo_user_font_face_set_render_color_glyph_func() or + * cairo_user_font_face_set_render_glyph_func() must be called to set + * a render callback. If both callbacks are set, the color glyph + * render callback is invoked first. If the color glyph render + * callback returns %CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED, the + * non-color version of the callback is invoked. + * + * If the callback is %NULL and a glyph is tried to be rendered using + * @font_face, a %CAIRO_STATUS_USER_FONT_ERROR will occur. + * + * Since: 1.8 + **/ +void +cairo_user_font_face_set_render_glyph_func (cairo_font_face_t *font_face, + cairo_user_scaled_font_render_glyph_func_t render_glyph_func) +{ + cairo_user_font_face_t *user_font_face; + + if (font_face->status) + return; + + if (! _cairo_font_face_is_user (font_face)) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH)) + return; + } + + user_font_face = (cairo_user_font_face_t *) font_face; + if (user_font_face->immutable) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_USER_FONT_IMMUTABLE)) + return; + } + user_font_face->scaled_font_methods.render_glyph = render_glyph_func; +} + +/** + * cairo_user_font_face_set_text_to_glyphs_func: + * @font_face: A user font face + * @text_to_glyphs_func: The text_to_glyphs callback, or %NULL + * + * Sets th text-to-glyphs conversion function of a user-font. + * See #cairo_user_scaled_font_text_to_glyphs_func_t for details of how the callback + * works. + * + * The font-face should not be immutable or a %CAIRO_STATUS_USER_FONT_IMMUTABLE + * error will occur. A user font-face is immutable as soon as a scaled-font + * is created from it. + * + * Since: 1.8 + **/ +void +cairo_user_font_face_set_text_to_glyphs_func (cairo_font_face_t *font_face, + cairo_user_scaled_font_text_to_glyphs_func_t text_to_glyphs_func) +{ + cairo_user_font_face_t *user_font_face; + + if (font_face->status) + return; + + if (! _cairo_font_face_is_user (font_face)) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH)) + return; + } + + user_font_face = (cairo_user_font_face_t *) font_face; + if (user_font_face->immutable) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_USER_FONT_IMMUTABLE)) + return; + } + user_font_face->scaled_font_methods.text_to_glyphs = text_to_glyphs_func; +} + +/** + * cairo_user_font_face_set_unicode_to_glyph_func: + * @font_face: A user font face + * @unicode_to_glyph_func: The unicode_to_glyph callback, or %NULL + * + * Sets the unicode-to-glyph conversion function of a user-font. + * See #cairo_user_scaled_font_unicode_to_glyph_func_t for details of how the callback + * works. + * + * The font-face should not be immutable or a %CAIRO_STATUS_USER_FONT_IMMUTABLE + * error will occur. A user font-face is immutable as soon as a scaled-font + * is created from it. + * + * Since: 1.8 + **/ +void +cairo_user_font_face_set_unicode_to_glyph_func (cairo_font_face_t *font_face, + cairo_user_scaled_font_unicode_to_glyph_func_t unicode_to_glyph_func) +{ + cairo_user_font_face_t *user_font_face; + if (font_face->status) + return; + + if (! _cairo_font_face_is_user (font_face)) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH)) + return; + } + + user_font_face = (cairo_user_font_face_t *) font_face; + if (user_font_face->immutable) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_USER_FONT_IMMUTABLE)) + return; + } + user_font_face->scaled_font_methods.unicode_to_glyph = unicode_to_glyph_func; +} + +/* User-font method getters */ + +/** + * cairo_user_font_face_get_init_func: + * @font_face: A user font face + * + * Gets the scaled-font initialization function of a user-font. + * + * Return value: The init callback of @font_face + * or %NULL if none set or an error has occurred. + * + * Since: 1.8 + **/ +cairo_user_scaled_font_init_func_t +cairo_user_font_face_get_init_func (cairo_font_face_t *font_face) +{ + cairo_user_font_face_t *user_font_face; + + if (font_face->status) + return NULL; + + if (! _cairo_font_face_is_user (font_face)) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH)) + return NULL; + } + + user_font_face = (cairo_user_font_face_t *) font_face; + return user_font_face->scaled_font_methods.init; +} + +/** + * cairo_user_font_face_get_render_color_glyph_func: + * @font_face: A user font face + * + * Gets the color glyph rendering function of a user-font. + * + * Return value: The render_glyph callback of @font_face + * or %NULL if none set or an error has occurred. + * + * Since: 1.18 + **/ +cairo_user_scaled_font_render_glyph_func_t +cairo_user_font_face_get_render_color_glyph_func (cairo_font_face_t *font_face) +{ + cairo_user_font_face_t *user_font_face; + + if (font_face->status) + return NULL; + + if (! _cairo_font_face_is_user (font_face)) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH)) + return NULL; + } + + user_font_face = (cairo_user_font_face_t *) font_face; + return user_font_face->scaled_font_methods.render_color_glyph; +} + +/** + * cairo_user_font_face_get_render_glyph_func: + * @font_face: A user font face + * + * Gets the glyph rendering function of a user-font. + * + * Return value: The render_glyph callback of @font_face + * or %NULL if none set or an error has occurred. + * + * Since: 1.8 + **/ +cairo_user_scaled_font_render_glyph_func_t +cairo_user_font_face_get_render_glyph_func (cairo_font_face_t *font_face) +{ + cairo_user_font_face_t *user_font_face; + + if (font_face->status) + return NULL; + + if (! _cairo_font_face_is_user (font_face)) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH)) + return NULL; + } + + user_font_face = (cairo_user_font_face_t *) font_face; + return user_font_face->scaled_font_methods.render_glyph; +} + +/** + * cairo_user_font_face_get_text_to_glyphs_func: + * @font_face: A user font face + * + * Gets the text-to-glyphs conversion function of a user-font. + * + * Return value: The text_to_glyphs callback of @font_face + * or %NULL if none set or an error occurred. + * + * Since: 1.8 + **/ +cairo_user_scaled_font_text_to_glyphs_func_t +cairo_user_font_face_get_text_to_glyphs_func (cairo_font_face_t *font_face) +{ + cairo_user_font_face_t *user_font_face; + + if (font_face->status) + return NULL; + + if (! _cairo_font_face_is_user (font_face)) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH)) + return NULL; + } + + user_font_face = (cairo_user_font_face_t *) font_face; + return user_font_face->scaled_font_methods.text_to_glyphs; +} + +/** + * cairo_user_font_face_get_unicode_to_glyph_func: + * @font_face: A user font face + * + * Gets the unicode-to-glyph conversion function of a user-font. + * + * Return value: The unicode_to_glyph callback of @font_face + * or %NULL if none set or an error occurred. + * + * Since: 1.8 + **/ +cairo_user_scaled_font_unicode_to_glyph_func_t +cairo_user_font_face_get_unicode_to_glyph_func (cairo_font_face_t *font_face) +{ + cairo_user_font_face_t *user_font_face; + + if (font_face->status) + return NULL; + + if (! _cairo_font_face_is_user (font_face)) { + if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH)) + return NULL; + } + + user_font_face = (cairo_user_font_face_t *) font_face; + return user_font_face->scaled_font_methods.unicode_to_glyph; +} + +/** + * cairo_user_scaled_font_get_foreground_marker: + * @scaled_font: A user scaled font + * + * Gets the foreground pattern of the glyph currently being + * rendered. A #cairo_user_scaled_font_render_glyph_func_t function + * that has been set with + * cairo_user_font_face_set_render_color_glyph_func() may call this + * function to retrieve the current foreground pattern for the glyph + * being rendered. The function should not be called outside of a + * cairo_user_font_face_set_render_color_glyph_func() callback. + * + * The foreground marker pattern contains an internal marker to + * indicate that it is to be substituted with the current source when + * rendered to a surface. Querying the foreground marker will reveal a + * solid black color, however this is not representative of the color + * that will actually be used. Similarly, setting a solid black color + * will render black, not the foreground pattern when the glyph is + * painted to a surface. Using the foreground marker as the source + * instead of cairo_user_scaled_font_get_foreground_source() in a + * color render callback has the following benefits: + * + * 1. Cairo only needs to call the render callback once as it can + * cache the recording. Cairo will substitute the actual foreground + * color when rendering the recording. + * + * 2. On backends that have the concept of a foreground color in fonts such as + * PDF, PostScript, and SVG, cairo can generate more optimal + * output. The glyph can be included in an embedded font. + * + * The one drawback of the using foreground marker is the render + * callback can not access the color components of the pattern as the + * actual foreground pattern is not available at the time the render + * callback is invoked. If the render callback needs to query the + * foreground pattern, use + * cairo_user_scaled_font_get_foreground_source(). + * + * If the render callback simply wants to call cairo_set_source() with + * the foreground pattern, + * cairo_user_scaled_font_get_foreground_marker() is the preferred + * function to use as it results in better performance than + * cairo_user_scaled_font_get_foreground_source(). + * + * Return value: the current foreground source marker pattern. This + * object is owned by cairo. This object must not be modified or used + * outside of a color render callback. To keep a reference to it, + * you must call cairo_pattern_reference(). + * + * Since: 1.18 + **/ +cairo_pattern_t * +cairo_user_scaled_font_get_foreground_marker (cairo_scaled_font_t *scaled_font) +{ + cairo_user_scaled_font_t *user_scaled_font; + + if (scaled_font->backend != &_cairo_user_scaled_font_backend) + return _cairo_pattern_create_in_error (CAIRO_STATUS_FONT_TYPE_MISMATCH); + + user_scaled_font = (cairo_user_scaled_font_t *)scaled_font; + return user_scaled_font->foreground_marker; +} + +/** + * cairo_user_scaled_font_get_foreground_source: + * @scaled_font: A user scaled font + * + * Gets the foreground pattern of the glyph currently being + * rendered. A #cairo_user_scaled_font_render_glyph_func_t function + * that has been set with + * cairo_user_font_face_set_render_color_glyph_func() may call this + * function to retrieve the current foreground pattern for the glyph + * being rendered. The function should not be called outside of a + * cairo_user_font_face_set_render_color_glyph_func() callback. + * + * This function returns the current source at the time the glyph is + * rendered. Compared with + * cairo_user_scaled_font_get_foreground_marker(), this function + * returns the actual source pattern that will be used to render the + * glyph. The render callback is free to query the pattern and + * extract color components or other pattern data. For example if the + * render callback wants to create a gradient stop based on colors in + * the foreground source pattern, it will need to use this function in + * order to be able to query the colors in the foreground pattern. + * + * While this function does not have the restrictions on using the + * pattern that cairo_user_scaled_font_get_foreground_marker() has, it + * does incur a performance penalty. If a render callback calls this + * function: + * + * 1. Cairo will call the render callback whenever the current pattern + * of the context in which the glyph is rendered changes. + * + * 2. On backends that support font embedding (PDF, PostScript, and + * SVG), cairo can not embed this glyph in a font. Instead the glyph + * will be emitted as an image or sequence of drawing operations each + * time it is used. + * + * Return value: the current foreground source pattern. This object is + * owned by cairo. To keep a reference to it, you must call + * cairo_pattern_reference(). + * + * Since: 1.18 + **/ +cairo_pattern_t * +cairo_user_scaled_font_get_foreground_source (cairo_scaled_font_t *scaled_font) +{ + cairo_user_scaled_font_t *user_scaled_font; + + if (scaled_font->backend != &_cairo_user_scaled_font_backend) + return _cairo_pattern_create_in_error (CAIRO_STATUS_FONT_TYPE_MISMATCH); + + user_scaled_font = (cairo_user_scaled_font_t *)scaled_font; + user_scaled_font->foreground_colors_used = TRUE; + return user_scaled_font->foreground_pattern; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-version.c b/local/recipes/libs/cairo/source/src/cairo-version.c new file mode 100644 index 0000000000..0b0d2123c3 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-version.c @@ -0,0 +1,254 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" + +/** + * SECTION:cairo-version + * @Title: Version Information + * @Short_Description: Compile-time and run-time version checks. + * + * Cairo has a three-part version number scheme. In this scheme, we use + * even vs. odd numbers to distinguish fixed points in the software + * vs. in-progress development, (such as from git instead of a tar file, + * or as a "snapshot" tar file as opposed to a "release" tar file). + * + * + * _____ Major. Always 1, until we invent a new scheme. + * / ___ Minor. Even/Odd = Release/Snapshot (tar files) or Branch/Head (git) + * | / _ Micro. Even/Odd = Tar-file/git + * | | / + * 1.0.0 + * + * + * Here are a few examples of versions that one might see. + * + * Releases + * -------- + * 1.0.0 - A major release + * 1.0.2 - A subsequent maintenance release + * 1.2.0 - Another major release + *   + * Snapshots + * --------- + * 1.1.2 - A snapshot (working toward the 1.2.0 release) + *   + * In-progress development (eg. from git) + * -------------------------------------- + * 1.0.1 - Development on a maintenance branch (toward 1.0.2 release) + * 1.1.1 - Development on head (toward 1.1.2 snapshot and 1.2.0 release) + * + * + * + * Compatibility + * + * The API/ABI compatibility guarantees for various versions are as + * follows. First, let's assume some cairo-using application code that is + * successfully using the API/ABI "from" one version of cairo. Then let's + * ask the question whether this same code can be moved "to" the API/ABI + * of another version of cairo. + * + * Moving from a release to any later version (release, snapshot, + * development) is always guaranteed to provide compatibility. + * + * Moving from a snapshot to any later version is not guaranteed to + * provide compatibility, since snapshots may introduce new API that ends + * up being removed before the next release. + * + * Moving from an in-development version (odd micro component) to any + * later version is not guaranteed to provide compatibility. In fact, + * there's not even a guarantee that the code will even continue to work + * with the same in-development version number. This is because these + * numbers don't correspond to any fixed state of the software, but + * rather the many states between snapshots and releases. + * + * + * + * Examining the version + * + * Cairo provides the ability to examine the version at either + * compile-time or run-time and in both a human-readable form as well as + * an encoded form suitable for direct comparison. Cairo also provides the + * macro CAIRO_VERSION_ENCODE() to perform the encoding. + * + * + * Compile-time + * ------------ + * #CAIRO_VERSION_STRING Human-readable + * #CAIRO_VERSION Encoded, suitable for comparison + *   + * Run-time + * -------- + * cairo_version_string() Human-readable + * cairo_version() Encoded, suitable for comparison + * + * + * For example, checking that the cairo version is greater than or equal + * to 1.0.0 could be achieved at compile-time or run-time as follows: + * + * + * ##if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 0, 0) + * printf ("Compiling with suitable cairo version: %s\n", %CAIRO_VERSION_STRING); + * ##endif + * + * if (cairo_version() >= CAIRO_VERSION_ENCODE(1, 0, 0)) + * printf ("Running with suitable cairo version: %s\n", cairo_version_string ()); + * + * + * + * + **/ + +/** + * CAIRO_VERSION: + * + * The version of cairo available at compile-time, encoded using + * CAIRO_VERSION_ENCODE(). + * + * Since: 1.0 + **/ + +/** + * CAIRO_VERSION_MAJOR: + * + * The major component of the version of cairo available at compile-time. + * + * Since: 1.0 + **/ + +/** + * CAIRO_VERSION_MINOR: + * + * The minor component of the version of cairo available at compile-time. + * + * Since: 1.0 + **/ + +/** + * CAIRO_VERSION_MICRO: + * + * The micro component of the version of cairo available at compile-time. + * + * Since: 1.0 + **/ + +/** + * CAIRO_VERSION_STRING: + * + * A human-readable string literal containing the version of cairo available + * at compile-time, in the form of "X.Y.Z". + * + * Since: 1.8 + **/ + +/** + * CAIRO_VERSION_ENCODE: + * @major: the major component of the version number + * @minor: the minor component of the version number + * @micro: the micro component of the version number + * + * This macro encodes the given cairo version into an integer. The numbers + * returned by %CAIRO_VERSION and cairo_version() are encoded using this macro. + * Two encoded version numbers can be compared as integers. The encoding ensures + * that later versions compare greater than earlier versions. + * + * Returns: the encoded version. + * + * Since: 1.0 + **/ + +/** + * CAIRO_VERSION_STRINGIZE: + * @major: the major component of the version number + * @minor: the minor component of the version number + * @micro: the micro component of the version number + * + * This macro encodes the given cairo version into an string. The numbers + * returned by %CAIRO_VERSION_STRING and cairo_version_string() are encoded using this macro. + * The parameters to this macro must expand to numerical literals. + * + * Returns: a string literal containing the version. + * + * Since: 1.8 + **/ + +/** + * cairo_version: + * + * Returns the version of the cairo library encoded in a single + * integer as per %CAIRO_VERSION_ENCODE. The encoding ensures that + * later versions compare greater than earlier versions. + * + * A run-time comparison to check that cairo's version is greater than + * or equal to version X.Y.Z could be performed as follows: + * + * + * if (cairo_version() >= CAIRO_VERSION_ENCODE(X,Y,Z)) {...} + * + * + * See also cairo_version_string() as well as the compile-time + * equivalents %CAIRO_VERSION and %CAIRO_VERSION_STRING. + * + * Return value: the encoded version. + * + * Since: 1.0 + **/ +int +cairo_version (void) +{ + return CAIRO_VERSION; +} + +/** + * cairo_version_string: + * + * Returns the version of the cairo library as a human-readable string + * of the form "X.Y.Z". + * + * See also cairo_version() as well as the compile-time equivalents + * %CAIRO_VERSION_STRING and %CAIRO_VERSION. + * + * Return value: a string containing the version. + * + * Since: 1.0 + **/ +const char* +cairo_version_string (void) +{ + return CAIRO_VERSION_STRING; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-version.h b/local/recipes/libs/cairo/source/src/cairo-version.h new file mode 100644 index 0000000000..7a7efd1669 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-version.h @@ -0,0 +1,8 @@ +#ifndef CAIRO_VERSION_H +#define CAIRO_VERSION_H + +#define CAIRO_VERSION_MAJOR 1 +#define CAIRO_VERSION_MINOR 18 +#define CAIRO_VERSION_MICRO 4 + +#endif diff --git a/local/recipes/libs/cairo/source/src/cairo-wideint-private.h b/local/recipes/libs/cairo/source/src/cairo-wideint-private.h new file mode 100644 index 0000000000..3f5491bb1c --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-wideint-private.h @@ -0,0 +1,338 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 Keith Packard + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Keith Packard + * + * Contributor(s): + * Keith R. Packard + * + */ + +#ifndef CAIRO_WIDEINT_H +#define CAIRO_WIDEINT_H + +#include "cairo-wideint-type-private.h" + +#include "cairo-compiler-private.h" + +/* + * 64-bit datatypes. Two separate implementations, one using + * built-in 64-bit signed/unsigned types another implemented + * as a pair of 32-bit ints + */ + +#define I cairo_private cairo_const + +#if !HAVE_UINT64_T + +cairo_uquorem64_t I +_cairo_uint64_divrem (cairo_uint64_t num, cairo_uint64_t den); + +cairo_uint64_t I _cairo_double_to_uint64 (double i); +double I _cairo_uint64_to_double (cairo_uint64_t i); +cairo_int64_t I _cairo_double_to_int64 (double i); +double I _cairo_int64_to_double (cairo_uint64_t i); + +cairo_uint64_t I _cairo_uint32_to_uint64 (uint32_t i); +#define _cairo_uint64_to_uint32(a) ((a).lo) +cairo_uint64_t I _cairo_uint64_add (cairo_uint64_t a, cairo_uint64_t b); +cairo_uint64_t I _cairo_uint64_sub (cairo_uint64_t a, cairo_uint64_t b); +cairo_uint64_t I _cairo_uint64_mul (cairo_uint64_t a, cairo_uint64_t b); +cairo_uint64_t I _cairo_uint32x32_64_mul (uint32_t a, uint32_t b); +cairo_uint64_t I _cairo_uint64_lsl (cairo_uint64_t a, int shift); +cairo_uint64_t I _cairo_uint64_rsl (cairo_uint64_t a, int shift); +cairo_uint64_t I _cairo_uint64_rsa (cairo_uint64_t a, int shift); +int I _cairo_uint64_lt (cairo_uint64_t a, cairo_uint64_t b); +int I _cairo_uint64_cmp (cairo_uint64_t a, cairo_uint64_t b); +int I _cairo_uint64_eq (cairo_uint64_t a, cairo_uint64_t b); +cairo_uint64_t I _cairo_uint64_negate (cairo_uint64_t a); +#define _cairo_uint64_is_zero(a) ((a).hi == 0 && (a).lo == 0) +#define _cairo_uint64_negative(a) (((int32_t) ((a).hi)) < 0) +cairo_uint64_t I _cairo_uint64_not (cairo_uint64_t a); + +#define _cairo_uint64_to_int64(i) (i) +#define _cairo_int64_to_uint64(i) (i) + +cairo_int64_t I _cairo_int32_to_int64(int32_t i); +#define _cairo_int64_to_int32(a) ((int32_t) _cairo_uint64_to_uint32(a)) +#define _cairo_int64_add(a,b) _cairo_uint64_add (a,b) +#define _cairo_int64_sub(a,b) _cairo_uint64_sub (a,b) +#define _cairo_int64_mul(a,b) _cairo_uint64_mul (a,b) +cairo_int64_t I _cairo_int32x32_64_mul (int32_t a, int32_t b); +int I _cairo_int64_lt (cairo_int64_t a, cairo_int64_t b); +int I _cairo_int64_cmp (cairo_int64_t a, cairo_int64_t b); +#define _cairo_int64_is_zero(a) _cairo_uint64_is_zero (a) +#define _cairo_int64_eq(a,b) _cairo_uint64_eq (a,b) +#define _cairo_int64_lsl(a,b) _cairo_uint64_lsl (a,b) +#define _cairo_int64_rsl(a,b) _cairo_uint64_rsl (a,b) +#define _cairo_int64_rsa(a,b) _cairo_uint64_rsa (a,b) +#define _cairo_int64_negate(a) _cairo_uint64_negate(a) +#define _cairo_int64_negative(a) (((int32_t) ((a).hi)) < 0) +#define _cairo_int64_not(a) _cairo_uint64_not(a) + +#else + +static inline cairo_uquorem64_t +_cairo_uint64_divrem (cairo_uint64_t num, cairo_uint64_t den) +{ + cairo_uquorem64_t qr; + + qr.quo = num / den; + qr.rem = num % den; + return qr; +} + +/* + * These need to be functions or gcc will complain when used on the + * result of a function: + * + * warning: cast from function call of type ‘#cairo_uint64_t’ to + * non-matching type ‘double’ + */ +static cairo_always_inline cairo_const cairo_uint64_t _cairo_double_to_uint64 (double i) { return i; } +static cairo_always_inline cairo_const double _cairo_uint64_to_double (cairo_uint64_t i) { return i; } + +static cairo_always_inline cairo_int64_t I _cairo_double_to_int64 (double i) { return i; } +static cairo_always_inline double I _cairo_int64_to_double (cairo_int64_t i) { return i; } + +#define _cairo_uint32_to_uint64(i) ((uint64_t) (i)) +#define _cairo_uint64_to_uint32(i) ((uint32_t) (i)) +#define _cairo_uint64_add(a,b) ((a) + (b)) +#define _cairo_uint64_sub(a,b) ((a) - (b)) +#define _cairo_uint64_mul(a,b) ((a) * (b)) +#define _cairo_uint32x32_64_mul(a,b) ((uint64_t) (a) * (b)) +#define _cairo_uint64_lsl(a,b) ((a) << (b)) +#define _cairo_uint64_rsl(a,b) ((uint64_t) (a) >> (b)) +#define _cairo_uint64_rsa(a,b) ((uint64_t) ((int64_t) (a) >> (b))) +#define _cairo_uint64_lt(a,b) ((a) < (b)) +#define _cairo_uint64_cmp(a,b) ((a) == (b) ? 0 : (a) < (b) ? -1 : 1) +#define _cairo_uint64_is_zero(a) ((a) == 0) +#define _cairo_uint64_eq(a,b) ((a) == (b)) +#define _cairo_uint64_negate(a) ((uint64_t) -((int64_t) (a))) +#define _cairo_uint64_negative(a) ((int64_t) (a) < 0) +#define _cairo_uint64_not(a) (~(a)) + +#define _cairo_uint64_to_int64(i) ((int64_t) (i)) +#define _cairo_int64_to_uint64(i) ((uint64_t) (i)) + +#define _cairo_int32_to_int64(i) ((int64_t) (i)) +#define _cairo_int64_to_int32(i) ((int32_t) (i)) +#define _cairo_int64_add(a,b) ((a) + (b)) +#define _cairo_int64_sub(a,b) ((a) - (b)) +#define _cairo_int64_mul(a,b) ((a) * (b)) +#define _cairo_int32x32_64_mul(a,b) ((int64_t) (a) * (b)) +#define _cairo_int64_lt(a,b) ((a) < (b)) +#define _cairo_int64_cmp(a,b) ((a) == (b) ? 0 : (a) < (b) ? -1 : 1) +#define _cairo_int64_is_zero(a) ((a) == 0) +#define _cairo_int64_eq(a,b) ((a) == (b)) +#define _cairo_int64_lsl(a,b) ((a) << (b)) +#define _cairo_int64_rsl(a,b) ((int64_t) ((uint64_t) (a) >> (b))) +#define _cairo_int64_rsa(a,b) ((int64_t) (a) >> (b)) +#define _cairo_int64_negate(a) (-(a)) +#define _cairo_int64_negative(a) ((a) < 0) +#define _cairo_int64_not(a) (~(a)) + +#endif + +/* + * 64-bit comparisons derived from lt or eq + */ +#define _cairo_uint64_le(a,b) (!_cairo_uint64_gt(a,b)) +#define _cairo_uint64_ne(a,b) (!_cairo_uint64_eq(a,b)) +#define _cairo_uint64_ge(a,b) (!_cairo_uint64_lt(a,b)) +#define _cairo_uint64_gt(a,b) _cairo_uint64_lt(b,a) + +#define _cairo_int64_le(a,b) (!_cairo_int64_gt(a,b)) +#define _cairo_int64_ne(a,b) (!_cairo_int64_eq(a,b)) +#define _cairo_int64_ge(a,b) (!_cairo_int64_lt(a,b)) +#define _cairo_int64_gt(a,b) _cairo_int64_lt(b,a) + +/* + * As the C implementation always computes both, create + * a function which returns both for the 'native' type as well + */ + +static inline cairo_quorem64_t +_cairo_int64_divrem (cairo_int64_t num, cairo_int64_t den) +{ + int num_neg = _cairo_int64_negative (num); + int den_neg = _cairo_int64_negative (den); + cairo_uquorem64_t uqr; + cairo_quorem64_t qr; + + if (num_neg) + num = _cairo_int64_negate (num); + if (den_neg) + den = _cairo_int64_negate (den); + uqr = _cairo_uint64_divrem (num, den); + if (num_neg) + qr.rem = _cairo_int64_negate (uqr.rem); + else + qr.rem = uqr.rem; + if (num_neg != den_neg) + qr.quo = (cairo_int64_t) _cairo_int64_negate (uqr.quo); + else + qr.quo = (cairo_int64_t) uqr.quo; + return qr; +} + +static inline int32_t +_cairo_int64_32_div (cairo_int64_t num, int32_t den) +{ +#if !HAVE_UINT64_T + return _cairo_int64_to_int32 + (_cairo_int64_divrem (num, _cairo_int32_to_int64 (den)).quo); +#else + return num / den; +#endif +} + +/* + * 128-bit datatypes. Again, provide two implementations in + * case the machine has a native 128-bit datatype. GCC supports int128_t + * on ia64 + */ + +#if !HAVE_UINT128_T + +cairo_uint128_t I _cairo_uint32_to_uint128 (uint32_t i); +cairo_uint128_t I _cairo_uint64_to_uint128 (cairo_uint64_t i); +#define _cairo_uint128_to_uint64(a) ((a).lo) +#define _cairo_uint128_to_uint32(a) _cairo_uint64_to_uint32(_cairo_uint128_to_uint64(a)) +cairo_uint128_t I _cairo_uint128_add (cairo_uint128_t a, cairo_uint128_t b); +cairo_uint128_t I _cairo_uint128_sub (cairo_uint128_t a, cairo_uint128_t b); +cairo_uint128_t I _cairo_uint128_mul (cairo_uint128_t a, cairo_uint128_t b); +cairo_uint128_t I _cairo_uint64x64_128_mul (cairo_uint64_t a, cairo_uint64_t b); +cairo_uint128_t I _cairo_uint128_lsl (cairo_uint128_t a, int shift); +cairo_uint128_t I _cairo_uint128_rsl (cairo_uint128_t a, int shift); +cairo_uint128_t I _cairo_uint128_rsa (cairo_uint128_t a, int shift); +int I _cairo_uint128_lt (cairo_uint128_t a, cairo_uint128_t b); +int I _cairo_uint128_cmp (cairo_uint128_t a, cairo_uint128_t b); +int I _cairo_uint128_eq (cairo_uint128_t a, cairo_uint128_t b); +#define _cairo_uint128_is_zero(a) (_cairo_uint64_is_zero ((a).hi) && _cairo_uint64_is_zero ((a).lo)) +cairo_uint128_t I _cairo_uint128_negate (cairo_uint128_t a); +#define _cairo_uint128_negative(a) (_cairo_uint64_negative(a.hi)) +cairo_uint128_t I _cairo_uint128_not (cairo_uint128_t a); + +#define _cairo_uint128_to_int128(i) (i) +#define _cairo_int128_to_uint128(i) (i) + +cairo_int128_t I _cairo_int32_to_int128 (int32_t i); +cairo_int128_t I _cairo_int64_to_int128 (cairo_int64_t i); +#define _cairo_int128_to_int64(a) ((cairo_int64_t) (a).lo) +#define _cairo_int128_to_int32(a) _cairo_int64_to_int32(_cairo_int128_to_int64(a)) +#define _cairo_int128_add(a,b) _cairo_uint128_add(a,b) +#define _cairo_int128_sub(a,b) _cairo_uint128_sub(a,b) +#define _cairo_int128_mul(a,b) _cairo_uint128_mul(a,b) +cairo_int128_t I _cairo_int64x64_128_mul (cairo_int64_t a, cairo_int64_t b); +#define _cairo_int64x32_128_mul(a, b) _cairo_int64x64_128_mul(a, _cairo_int32_to_int64(b)) +#define _cairo_int128_lsl(a,b) _cairo_uint128_lsl(a,b) +#define _cairo_int128_rsl(a,b) _cairo_uint128_rsl(a,b) +#define _cairo_int128_rsa(a,b) _cairo_uint128_rsa(a,b) +int I _cairo_int128_lt (cairo_int128_t a, cairo_int128_t b); +int I _cairo_int128_cmp (cairo_int128_t a, cairo_int128_t b); +#define _cairo_int128_is_zero(a) _cairo_uint128_is_zero (a) +#define _cairo_int128_eq(a,b) _cairo_uint128_eq (a,b) +#define _cairo_int128_negate(a) _cairo_uint128_negate(a) +#define _cairo_int128_negative(a) (_cairo_uint128_negative(a)) +#define _cairo_int128_not(a) _cairo_uint128_not(a) + +#else /* !HAVE_UINT128_T */ + +#define _cairo_uint32_to_uint128(i) ((uint128_t) (i)) +#define _cairo_uint64_to_uint128(i) ((uint128_t) (i)) +#define _cairo_uint128_to_uint64(i) ((uint64_t) (i)) +#define _cairo_uint128_to_uint32(i) ((uint32_t) (i)) +#define _cairo_uint128_add(a,b) ((a) + (b)) +#define _cairo_uint128_sub(a,b) ((a) - (b)) +#define _cairo_uint128_mul(a,b) ((a) * (b)) +#define _cairo_uint64x64_128_mul(a,b) ((uint128_t) (a) * (b)) +#define _cairo_uint128_lsl(a,b) ((a) << (b)) +#define _cairo_uint128_rsl(a,b) ((uint128_t) (a) >> (b)) +#define _cairo_uint128_rsa(a,b) ((uint128_t) ((int128_t) (a) >> (b))) +#define _cairo_uint128_lt(a,b) ((a) < (b)) +#define _cairo_uint128_cmp(a,b) ((a) == (b) ? 0 : (a) < (b) ? -1 : 1) +#define _cairo_uint128_is_zero(a) ((a) == 0) +#define _cairo_uint128_eq(a,b) ((a) == (b)) +#define _cairo_uint128_negate(a) ((uint128_t) -((int128_t) (a))) +#define _cairo_uint128_negative(a) ((int128_t) (a) < 0) +#define _cairo_uint128_not(a) (~(a)) + +#define _cairo_uint128_to_int128(i) ((int128_t) (i)) +#define _cairo_int128_to_uint128(i) ((uint128_t) (i)) + +#define _cairo_int32_to_int128(i) ((int128_t) (i)) +#define _cairo_int64_to_int128(i) ((int128_t) (i)) +#define _cairo_int128_to_int64(i) ((int64_t) (i)) +#define _cairo_int128_to_int32(i) ((int32_t) (i)) +#define _cairo_int128_add(a,b) ((a) + (b)) +#define _cairo_int128_sub(a,b) ((a) - (b)) +#define _cairo_int128_mul(a,b) ((a) * (b)) +#define _cairo_int64x64_128_mul(a,b) ((int128_t) (a) * (b)) +#define _cairo_int64x32_128_mul(a, b) _cairo_int64x64_128_mul(a, _cairo_int32_to_int64(b)) +#define _cairo_int128_lt(a,b) ((a) < (b)) +#define _cairo_int128_cmp(a,b) ((a) == (b) ? 0 : (a) < (b) ? -1 : 1) +#define _cairo_int128_is_zero(a) ((a) == 0) +#define _cairo_int128_eq(a,b) ((a) == (b)) +#define _cairo_int128_lsl(a,b) ((a) << (b)) +#define _cairo_int128_rsl(a,b) ((int128_t) ((uint128_t) (a) >> (b))) +#define _cairo_int128_rsa(a,b) ((int128_t) (a) >> (b)) +#define _cairo_int128_negate(a) (-(a)) +#define _cairo_int128_negative(a) ((a) < 0) +#define _cairo_int128_not(a) (~(a)) + +#endif /* HAVE_UINT128_T */ + +cairo_uquorem128_t I +_cairo_uint128_divrem (cairo_uint128_t num, cairo_uint128_t den); + +cairo_quorem128_t I +_cairo_int128_divrem (cairo_int128_t num, cairo_int128_t den); + +cairo_uquorem64_t I +_cairo_uint_96by64_32x64_divrem (cairo_uint128_t num, + cairo_uint64_t den); + +cairo_quorem64_t I +_cairo_int_96by64_32x64_divrem (cairo_int128_t num, + cairo_int64_t den); + +#define _cairo_uint128_le(a,b) (!_cairo_uint128_gt(a,b)) +#define _cairo_uint128_ne(a,b) (!_cairo_uint128_eq(a,b)) +#define _cairo_uint128_ge(a,b) (!_cairo_uint128_lt(a,b)) +#define _cairo_uint128_gt(a,b) _cairo_uint128_lt(b,a) + +#define _cairo_int128_le(a,b) (!_cairo_int128_gt(a,b)) +#define _cairo_int128_ne(a,b) (!_cairo_int128_eq(a,b)) +#define _cairo_int128_ge(a,b) (!_cairo_int128_lt(a,b)) +#define _cairo_int128_gt(a,b) _cairo_int128_lt(b,a) + +#undef I + +#endif /* CAIRO_WIDEINT_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-wideint-type-private.h b/local/recipes/libs/cairo/source/src/cairo-wideint-type-private.h new file mode 100644 index 0000000000..a1a2269f87 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-wideint-type-private.h @@ -0,0 +1,156 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 Keith Packard + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Keith Packard + * + * Contributor(s): + * Keith R. Packard + * + */ + +#ifndef CAIRO_WIDEINT_TYPE_H +#define CAIRO_WIDEINT_TYPE_H + +#include "cairo.h" + +#include "config.h" + +#if HAVE_STDINT_H +# include +#elif HAVE_INTTYPES_H +# include +#elif HAVE_SYS_INT_TYPES_H +# include +#elif defined(_MSC_VER) + typedef __int8 int8_t; + typedef unsigned __int8 uint8_t; + typedef __int16 int16_t; + typedef unsigned __int16 uint16_t; + typedef __int32 int32_t; + typedef unsigned __int32 uint32_t; + typedef __int64 int64_t; + typedef unsigned __int64 uint64_t; +# ifndef HAVE_UINT64_T +# define HAVE_UINT64_T 1 +# endif +#else +#error Cannot find definitions for fixed-width integral types (uint8_t, uint32_t, etc.) +#endif + +#ifndef INT16_MIN +# define INT16_MIN (-32767-1) +#endif +#ifndef INT16_MAX +# define INT16_MAX (32767) +#endif +#ifndef UINT16_MAX +# define UINT16_MAX (65535) +#endif +#ifndef INT32_MIN +# define INT32_MIN (-2147483647-1) +#endif +#ifndef INT32_MAX +# define INT32_MAX (2147483647) +#endif +#ifndef UINT32_MAX +# define UINT32_MAX (4294967295U) +#endif + +#if HAVE_BYTESWAP_H +# include +#endif +#ifndef bswap_16 +# define bswap_16(p) \ + (((((uint16_t)(p)) & 0x00ff) << 8) | \ + (((uint16_t)(p)) >> 8)); +#endif +#ifndef bswap_32 +# define bswap_32(p) \ + (((((uint32_t)(p)) & 0x000000ff) << 24) | \ + ((((uint32_t)(p)) & 0x0000ff00) << 8) | \ + ((((uint32_t)(p)) & 0x00ff0000) >> 8) | \ + ((((uint32_t)(p))) >> 24)); +#endif + + +#if !HAVE_UINT64_T + +typedef struct _cairo_uint64 { + uint32_t lo, hi; +} cairo_uint64_t, cairo_int64_t; + +#else + +typedef uint64_t cairo_uint64_t; +typedef int64_t cairo_int64_t; + +#endif + +typedef struct _cairo_uquorem64 { + cairo_uint64_t quo; + cairo_uint64_t rem; +} cairo_uquorem64_t; + +typedef struct _cairo_quorem64 { + cairo_int64_t quo; + cairo_int64_t rem; +} cairo_quorem64_t; + +/* gcc has a non-standard name. */ +#if HAVE___UINT128_T && !HAVE_UINT128_T +typedef __uint128_t uint128_t; +typedef __int128_t int128_t; +#define HAVE_UINT128_T 1 +#endif + +#if !HAVE_UINT128_T + +typedef struct cairo_uint128 { + cairo_uint64_t lo, hi; +} cairo_uint128_t, cairo_int128_t; + +#else + +typedef uint128_t cairo_uint128_t; +typedef int128_t cairo_int128_t; + +#endif + +typedef struct _cairo_uquorem128 { + cairo_uint128_t quo; + cairo_uint128_t rem; +} cairo_uquorem128_t; + +typedef struct _cairo_quorem128 { + cairo_int128_t quo; + cairo_int128_t rem; +} cairo_quorem128_t; + + +#endif /* CAIRO_WIDEINT_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-wideint.c b/local/recipes/libs/cairo/source/src/cairo-wideint.c new file mode 100644 index 0000000000..2e056fa36a --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-wideint.c @@ -0,0 +1,852 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2004 Keith Packard + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Keith Packard + * + * Contributor(s): + * Keith R. Packard + */ + +#include "cairoint.h" + +#if HAVE_UINT64_T + +#define uint64_lo32(i) ((i) & 0xffffffff) +#define uint64_hi32(i) ((i) >> 32) +#define uint64_lo(i) ((i) & 0xffffffff) +#define uint64_hi(i) ((i) >> 32) +#define uint64_shift32(i) ((i) << 32) +#define uint64_carry32 (((uint64_t) 1) << 32) + +#define _cairo_uint32s_to_uint64(h,l) ((uint64_t) (h) << 32 | (l)) + +#else + +#define uint64_lo32(i) ((i).lo) +#define uint64_hi32(i) ((i).hi) + +static cairo_uint64_t +uint64_lo (cairo_uint64_t i) +{ + cairo_uint64_t s; + + s.lo = i.lo; + s.hi = 0; + return s; +} + +static cairo_uint64_t +uint64_hi (cairo_uint64_t i) +{ + cairo_uint64_t s; + + s.lo = i.hi; + s.hi = 0; + return s; +} + +static cairo_uint64_t +uint64_shift32 (cairo_uint64_t i) +{ + cairo_uint64_t s; + + s.lo = 0; + s.hi = i.lo; + return s; +} + +static const cairo_uint64_t uint64_carry32 = { 0, 1 }; + +cairo_uint64_t +_cairo_double_to_uint64 (double i) +{ + cairo_uint64_t q; + + q.hi = i * (1. / 4294967296.); + q.lo = i - q.hi * 4294967296.; + return q; +} + +double +_cairo_uint64_to_double (cairo_uint64_t i) +{ + return i.hi * 4294967296. + i.lo; +} + +cairo_int64_t +_cairo_double_to_int64 (double i) +{ + cairo_uint64_t q; + + q.hi = i * (1. / INT32_MAX); + q.lo = i - q.hi * (double)INT32_MAX; + return q; +} + +double +_cairo_int64_to_double (cairo_int64_t i) +{ + return i.hi * INT32_MAX + i.lo; +} + +cairo_uint64_t +_cairo_uint32_to_uint64 (uint32_t i) +{ + cairo_uint64_t q; + + q.lo = i; + q.hi = 0; + return q; +} + +cairo_int64_t +_cairo_int32_to_int64 (int32_t i) +{ + cairo_uint64_t q; + + q.lo = i; + q.hi = i < 0 ? -1 : 0; + return q; +} + +static cairo_uint64_t +_cairo_uint32s_to_uint64 (uint32_t h, uint32_t l) +{ + cairo_uint64_t q; + + q.lo = l; + q.hi = h; + return q; +} + +cairo_uint64_t +_cairo_uint64_add (cairo_uint64_t a, cairo_uint64_t b) +{ + cairo_uint64_t s; + + s.hi = a.hi + b.hi; + s.lo = a.lo + b.lo; + if (s.lo < a.lo) + s.hi++; + return s; +} + +cairo_uint64_t +_cairo_uint64_sub (cairo_uint64_t a, cairo_uint64_t b) +{ + cairo_uint64_t s; + + s.hi = a.hi - b.hi; + s.lo = a.lo - b.lo; + if (s.lo > a.lo) + s.hi--; + return s; +} + +#define uint32_lo(i) ((i) & 0xffff) +#define uint32_hi(i) ((i) >> 16) +#define uint32_carry16 ((1) << 16) + +cairo_uint64_t +_cairo_uint32x32_64_mul (uint32_t a, uint32_t b) +{ + cairo_uint64_t s; + + uint16_t ah, al, bh, bl; + uint32_t r0, r1, r2, r3; + + al = uint32_lo (a); + ah = uint32_hi (a); + bl = uint32_lo (b); + bh = uint32_hi (b); + + r0 = (uint32_t) al * bl; + r1 = (uint32_t) al * bh; + r2 = (uint32_t) ah * bl; + r3 = (uint32_t) ah * bh; + + r1 += uint32_hi(r0); /* no carry possible */ + r1 += r2; /* but this can carry */ + if (r1 < r2) /* check */ + r3 += uint32_carry16; + + s.hi = r3 + uint32_hi(r1); + s.lo = (uint32_lo (r1) << 16) + uint32_lo (r0); + return s; +} + +cairo_int64_t +_cairo_int32x32_64_mul (int32_t a, int32_t b) +{ + cairo_int64_t s; + s = _cairo_uint32x32_64_mul ((uint32_t) a, (uint32_t) b); + if (a < 0) + s.hi -= b; + if (b < 0) + s.hi -= a; + return s; +} + +cairo_uint64_t +_cairo_uint64_mul (cairo_uint64_t a, cairo_uint64_t b) +{ + cairo_uint64_t s; + + s = _cairo_uint32x32_64_mul (a.lo, b.lo); + s.hi += a.lo * b.hi + a.hi * b.lo; + return s; +} + +cairo_uint64_t +_cairo_uint64_lsl (cairo_uint64_t a, int shift) +{ + if (shift >= 32) + { + a.hi = a.lo; + a.lo = 0; + shift -= 32; + } + if (shift) + { + a.hi = a.hi << shift | a.lo >> (32 - shift); + a.lo = a.lo << shift; + } + return a; +} + +cairo_uint64_t +_cairo_uint64_rsl (cairo_uint64_t a, int shift) +{ + if (shift >= 32) + { + a.lo = a.hi; + a.hi = 0; + shift -= 32; + } + if (shift) + { + a.lo = a.lo >> shift | a.hi << (32 - shift); + a.hi = a.hi >> shift; + } + return a; +} + +#define _cairo_uint32_rsa(a,n) ((uint32_t) (((int32_t) (a)) >> (n))) + +cairo_int64_t +_cairo_uint64_rsa (cairo_int64_t a, int shift) +{ + if (shift >= 32) + { + a.lo = a.hi; + a.hi = _cairo_uint32_rsa (a.hi, 31); + shift -= 32; + } + if (shift) + { + a.lo = a.lo >> shift | a.hi << (32 - shift); + a.hi = _cairo_uint32_rsa (a.hi, shift); + } + return a; +} + +int +_cairo_uint64_lt (cairo_uint64_t a, cairo_uint64_t b) +{ + return (a.hi < b.hi || + (a.hi == b.hi && a.lo < b.lo)); +} + +int +_cairo_uint64_eq (cairo_uint64_t a, cairo_uint64_t b) +{ + return a.hi == b.hi && a.lo == b.lo; +} + +int +_cairo_int64_lt (cairo_int64_t a, cairo_int64_t b) +{ + if (_cairo_int64_negative (a) && !_cairo_int64_negative (b)) + return 1; + if (!_cairo_int64_negative (a) && _cairo_int64_negative (b)) + return 0; + return _cairo_uint64_lt (a, b); +} + +int +_cairo_uint64_cmp (cairo_uint64_t a, cairo_uint64_t b) +{ + if (a.hi < b.hi) + return -1; + else if (a.hi > b.hi) + return 1; + else if (a.lo < b.lo) + return -1; + else if (a.lo > b.lo) + return 1; + else + return 0; +} + +int +_cairo_int64_cmp (cairo_int64_t a, cairo_int64_t b) +{ + if (_cairo_int64_negative (a) && !_cairo_int64_negative (b)) + return -1; + if (!_cairo_int64_negative (a) && _cairo_int64_negative (b)) + return 1; + + return _cairo_uint64_cmp (a, b); +} + +cairo_uint64_t +_cairo_uint64_not (cairo_uint64_t a) +{ + a.lo = ~a.lo; + a.hi = ~a.hi; + return a; +} + +cairo_uint64_t +_cairo_uint64_negate (cairo_uint64_t a) +{ + a.lo = ~a.lo; + a.hi = ~a.hi; + if (++a.lo == 0) + ++a.hi; + return a; +} + +/* + * Simple bit-at-a-time divide. + */ +cairo_uquorem64_t +_cairo_uint64_divrem (cairo_uint64_t num, cairo_uint64_t den) +{ + cairo_uquorem64_t qr; + cairo_uint64_t bit; + cairo_uint64_t quo; + + bit = _cairo_uint32_to_uint64 (1); + + /* normalize to make den >= num, but not overflow */ + while (_cairo_uint64_lt (den, num) && (den.hi & 0x80000000) == 0) + { + bit = _cairo_uint64_lsl (bit, 1); + den = _cairo_uint64_lsl (den, 1); + } + quo = _cairo_uint32_to_uint64 (0); + + /* generate quotient, one bit at a time */ + while (bit.hi | bit.lo) + { + if (_cairo_uint64_le (den, num)) + { + num = _cairo_uint64_sub (num, den); + quo = _cairo_uint64_add (quo, bit); + } + bit = _cairo_uint64_rsl (bit, 1); + den = _cairo_uint64_rsl (den, 1); + } + qr.quo = quo; + qr.rem = num; + return qr; +} + +#endif /* !HAVE_UINT64_T */ + +#if HAVE_UINT128_T +cairo_uquorem128_t +_cairo_uint128_divrem (cairo_uint128_t num, cairo_uint128_t den) +{ + cairo_uquorem128_t qr; + + qr.quo = num / den; + qr.rem = num % den; + return qr; +} + +#else + +cairo_uint128_t +_cairo_uint32_to_uint128 (uint32_t i) +{ + cairo_uint128_t q; + + q.lo = _cairo_uint32_to_uint64 (i); + q.hi = _cairo_uint32_to_uint64 (0); + return q; +} + +cairo_int128_t +_cairo_int32_to_int128 (int32_t i) +{ + cairo_int128_t q; + + q.lo = _cairo_int32_to_int64 (i); + q.hi = _cairo_int32_to_int64 (i < 0 ? -1 : 0); + return q; +} + +cairo_uint128_t +_cairo_uint64_to_uint128 (cairo_uint64_t i) +{ + cairo_uint128_t q; + + q.lo = i; + q.hi = _cairo_uint32_to_uint64 (0); + return q; +} + +cairo_int128_t +_cairo_int64_to_int128 (cairo_int64_t i) +{ + cairo_int128_t q; + + q.lo = i; + q.hi = _cairo_int32_to_int64 (_cairo_int64_negative(i) ? -1 : 0); + return q; +} + +cairo_uint128_t +_cairo_uint128_add (cairo_uint128_t a, cairo_uint128_t b) +{ + cairo_uint128_t s; + + s.hi = _cairo_uint64_add (a.hi, b.hi); + s.lo = _cairo_uint64_add (a.lo, b.lo); + if (_cairo_uint64_lt (s.lo, a.lo)) + s.hi = _cairo_uint64_add (s.hi, _cairo_uint32_to_uint64 (1)); + return s; +} + +cairo_uint128_t +_cairo_uint128_sub (cairo_uint128_t a, cairo_uint128_t b) +{ + cairo_uint128_t s; + + s.hi = _cairo_uint64_sub (a.hi, b.hi); + s.lo = _cairo_uint64_sub (a.lo, b.lo); + if (_cairo_uint64_gt (s.lo, a.lo)) + s.hi = _cairo_uint64_sub (s.hi, _cairo_uint32_to_uint64(1)); + return s; +} + +cairo_uint128_t +_cairo_uint64x64_128_mul (cairo_uint64_t a, cairo_uint64_t b) +{ + cairo_uint128_t s; + uint32_t ah, al, bh, bl; + cairo_uint64_t r0, r1, r2, r3; + + al = uint64_lo32 (a); + ah = uint64_hi32 (a); + bl = uint64_lo32 (b); + bh = uint64_hi32 (b); + + r0 = _cairo_uint32x32_64_mul (al, bl); + r1 = _cairo_uint32x32_64_mul (al, bh); + r2 = _cairo_uint32x32_64_mul (ah, bl); + r3 = _cairo_uint32x32_64_mul (ah, bh); + + r1 = _cairo_uint64_add (r1, uint64_hi (r0)); /* no carry possible */ + r1 = _cairo_uint64_add (r1, r2); /* but this can carry */ + if (_cairo_uint64_lt (r1, r2)) /* check */ + r3 = _cairo_uint64_add (r3, uint64_carry32); + + s.hi = _cairo_uint64_add (r3, uint64_hi(r1)); + s.lo = _cairo_uint64_add (uint64_shift32 (r1), + uint64_lo (r0)); + return s; +} + +cairo_int128_t +_cairo_int64x64_128_mul (cairo_int64_t a, cairo_int64_t b) +{ + cairo_int128_t s; + s = _cairo_uint64x64_128_mul (_cairo_int64_to_uint64(a), + _cairo_int64_to_uint64(b)); + if (_cairo_int64_negative (a)) + s.hi = _cairo_uint64_sub (s.hi, + _cairo_int64_to_uint64 (b)); + if (_cairo_int64_negative (b)) + s.hi = _cairo_uint64_sub (s.hi, + _cairo_int64_to_uint64 (a)); + return s; +} + +cairo_uint128_t +_cairo_uint128_mul (cairo_uint128_t a, cairo_uint128_t b) +{ + cairo_uint128_t s; + + s = _cairo_uint64x64_128_mul (a.lo, b.lo); + s.hi = _cairo_uint64_add (s.hi, + _cairo_uint64_mul (a.lo, b.hi)); + s.hi = _cairo_uint64_add (s.hi, + _cairo_uint64_mul (a.hi, b.lo)); + return s; +} + +cairo_uint128_t +_cairo_uint128_lsl (cairo_uint128_t a, int shift) +{ + if (shift >= 64) + { + a.hi = a.lo; + a.lo = _cairo_uint32_to_uint64 (0); + shift -= 64; + } + if (shift) + { + a.hi = _cairo_uint64_add (_cairo_uint64_lsl (a.hi, shift), + _cairo_uint64_rsl (a.lo, (64 - shift))); + a.lo = _cairo_uint64_lsl (a.lo, shift); + } + return a; +} + +cairo_uint128_t +_cairo_uint128_rsl (cairo_uint128_t a, int shift) +{ + if (shift >= 64) + { + a.lo = a.hi; + a.hi = _cairo_uint32_to_uint64 (0); + shift -= 64; + } + if (shift) + { + a.lo = _cairo_uint64_add (_cairo_uint64_rsl (a.lo, shift), + _cairo_uint64_lsl (a.hi, (64 - shift))); + a.hi = _cairo_uint64_rsl (a.hi, shift); + } + return a; +} + +cairo_uint128_t +_cairo_uint128_rsa (cairo_int128_t a, int shift) +{ + if (shift >= 64) + { + a.lo = a.hi; + a.hi = _cairo_uint64_rsa (a.hi, 64-1); + shift -= 64; + } + if (shift) + { + a.lo = _cairo_uint64_add (_cairo_uint64_rsl (a.lo, shift), + _cairo_uint64_lsl (a.hi, (64 - shift))); + a.hi = _cairo_uint64_rsa (a.hi, shift); + } + return a; +} + +int +_cairo_uint128_lt (cairo_uint128_t a, cairo_uint128_t b) +{ + return (_cairo_uint64_lt (a.hi, b.hi) || + (_cairo_uint64_eq (a.hi, b.hi) && + _cairo_uint64_lt (a.lo, b.lo))); +} + +int +_cairo_int128_lt (cairo_int128_t a, cairo_int128_t b) +{ + if (_cairo_int128_negative (a) && !_cairo_int128_negative (b)) + return 1; + if (!_cairo_int128_negative (a) && _cairo_int128_negative (b)) + return 0; + return _cairo_uint128_lt (a, b); +} + +int +_cairo_uint128_cmp (cairo_uint128_t a, cairo_uint128_t b) +{ + int cmp; + + cmp = _cairo_uint64_cmp (a.hi, b.hi); + if (cmp) + return cmp; + return _cairo_uint64_cmp (a.lo, b.lo); +} + +int +_cairo_int128_cmp (cairo_int128_t a, cairo_int128_t b) +{ + if (_cairo_int128_negative (a) && !_cairo_int128_negative (b)) + return -1; + if (!_cairo_int128_negative (a) && _cairo_int128_negative (b)) + return 1; + + return _cairo_uint128_cmp (a, b); +} + +int +_cairo_uint128_eq (cairo_uint128_t a, cairo_uint128_t b) +{ + return (_cairo_uint64_eq (a.hi, b.hi) && + _cairo_uint64_eq (a.lo, b.lo)); +} + +#if HAVE_UINT64_T +#define _cairo_msbset64(q) (q & ((uint64_t) 1 << 63)) +#else +#define _cairo_msbset64(q) (q.hi & ((uint32_t) 1 << 31)) +#endif + +cairo_uquorem128_t +_cairo_uint128_divrem (cairo_uint128_t num, cairo_uint128_t den) +{ + cairo_uquorem128_t qr; + cairo_uint128_t bit; + cairo_uint128_t quo; + + bit = _cairo_uint32_to_uint128 (1); + + /* normalize to make den >= num, but not overflow */ + while (_cairo_uint128_lt (den, num) && !_cairo_msbset64(den.hi)) + { + bit = _cairo_uint128_lsl (bit, 1); + den = _cairo_uint128_lsl (den, 1); + } + quo = _cairo_uint32_to_uint128 (0); + + /* generate quotient, one bit at a time */ + while (_cairo_uint128_ne (bit, _cairo_uint32_to_uint128(0))) + { + if (_cairo_uint128_le (den, num)) + { + num = _cairo_uint128_sub (num, den); + quo = _cairo_uint128_add (quo, bit); + } + bit = _cairo_uint128_rsl (bit, 1); + den = _cairo_uint128_rsl (den, 1); + } + qr.quo = quo; + qr.rem = num; + return qr; +} + +cairo_uint128_t +_cairo_uint128_negate (cairo_uint128_t a) +{ + a.lo = _cairo_uint64_not (a.lo); + a.hi = _cairo_uint64_not (a.hi); + return _cairo_uint128_add (a, _cairo_uint32_to_uint128 (1)); +} + +cairo_uint128_t +_cairo_uint128_not (cairo_uint128_t a) +{ + a.lo = _cairo_uint64_not (a.lo); + a.hi = _cairo_uint64_not (a.hi); + return a; +} + +#endif /* !HAVE_UINT128_T */ + +cairo_quorem128_t +_cairo_int128_divrem (cairo_int128_t num, cairo_int128_t den) +{ + int num_neg = _cairo_int128_negative (num); + int den_neg = _cairo_int128_negative (den); + cairo_uquorem128_t uqr; + cairo_quorem128_t qr; + + if (num_neg) + num = _cairo_int128_negate (num); + if (den_neg) + den = _cairo_int128_negate (den); + uqr = _cairo_uint128_divrem (num, den); + if (num_neg) + qr.rem = _cairo_int128_negate (uqr.rem); + else + qr.rem = uqr.rem; + if (num_neg != den_neg) + qr.quo = _cairo_int128_negate (uqr.quo); + else + qr.quo = uqr.quo; + return qr; +} + +/** + * _cairo_uint_96by64_32x64_divrem: + * + * Compute a 32 bit quotient and 64 bit remainder of a 96 bit unsigned + * dividend and 64 bit divisor. If the quotient doesn't fit into 32 + * bits then the returned remainder is equal to the divisor, and the + * quotient is the largest representable 64 bit integer. It is an + * error to call this function with the high 32 bits of @num being + * non-zero. + **/ +cairo_uquorem64_t +_cairo_uint_96by64_32x64_divrem (cairo_uint128_t num, + cairo_uint64_t den) +{ + cairo_uquorem64_t result; + cairo_uint64_t B = _cairo_uint32s_to_uint64 (1, 0); + + /* These are the high 64 bits of the *96* bit numerator. We're + * going to represent the numerator as xB + y, where x is a 64, + * and y is a 32 bit number. */ + cairo_uint64_t x = _cairo_uint128_to_uint64 (_cairo_uint128_rsl(num, 32)); + + /* Initialise the result to indicate overflow. */ + result.quo = _cairo_uint32s_to_uint64 (-1U, -1U); + result.rem = den; + + /* Don't bother if the quotient is going to overflow. */ + if (_cairo_uint64_ge (x, den)) { + return /* overflow */ result; + } + + if (_cairo_uint64_lt (x, B)) { + /* When the final quotient is known to fit in 32 bits, then + * num < 2^64 if and only if den < 2^32. */ + return _cairo_uint64_divrem (_cairo_uint128_to_uint64 (num), den); + } + else { + /* Denominator is >= 2^32. the numerator is >= 2^64, and the + * division won't overflow: need two divrems. Write the + * numerator and denominator as + * + * num = xB + y x : 64 bits, y : 32 bits + * den = uB + v u, v : 32 bits + */ + uint32_t y = _cairo_uint128_to_uint32 (num); + uint32_t u = uint64_hi32 (den); + uint32_t v = _cairo_uint64_to_uint32 (den); + + /* Compute a lower bound approximate quotient of num/den + * from x/(u+1). Then we have + * + * x = q(u+1) + r ; q : 32 bits, r <= u : 32 bits. + * + * xB + y = q(u+1)B + (rB+y) + * = q(uB + B + v - v) + (rB+y) + * = q(uB + v) + qB - qv + (rB+y) + * = q(uB + v) + q(B-v) + (rB+y) + * + * The true quotient of num/den then is q plus the + * contribution of q(B-v) + (rB+y). The main contribution + * comes from the term q(B-v), with the term (rB+y) only + * contributing at most one part. + * + * The term q(B-v) must fit into 64 bits, since q fits into 32 + * bits on account of being a lower bound to the true + * quotient, and as B-v <= 2^32, we may safely use a single + * 64/64 bit division to find its contribution. */ + + cairo_uquorem64_t quorem; + cairo_uint64_t remainder; /* will contain final remainder */ + uint32_t quotient; /* will contain final quotient. */ + uint32_t q; + uint32_t r; + + /* Approximate quotient by dividing the high 64 bits of num by + * u+1. Watch out for overflow of u+1. */ + if (u+1) { + quorem = _cairo_uint64_divrem (x, _cairo_uint32_to_uint64 (u+1)); + q = _cairo_uint64_to_uint32 (quorem.quo); + r = _cairo_uint64_to_uint32 (quorem.rem); + } + else { + q = uint64_hi32 (x); + r = _cairo_uint64_to_uint32 (x); + } + quotient = q; + + /* Add the main term's contribution to quotient. Note B-v = + * -v as an uint32 (unless v = 0) */ + if (v) + quorem = _cairo_uint64_divrem (_cairo_uint32x32_64_mul (q, -v), den); + else + quorem = _cairo_uint64_divrem (_cairo_uint32s_to_uint64 (q, 0), den); + quotient += _cairo_uint64_to_uint32 (quorem.quo); + + /* Add the contribution of the subterm and start computing the + * true remainder. */ + remainder = _cairo_uint32s_to_uint64 (r, y); + if (_cairo_uint64_ge (remainder, den)) { + remainder = _cairo_uint64_sub (remainder, den); + quotient++; + } + + /* Add the contribution of the main term's remainder. The + * funky test here checks that remainder + main_rem >= den, + * taking into account overflow of the addition. */ + remainder = _cairo_uint64_add (remainder, quorem.rem); + if (_cairo_uint64_ge (remainder, den) || + _cairo_uint64_lt (remainder, quorem.rem)) + { + remainder = _cairo_uint64_sub (remainder, den); + quotient++; + } + + result.quo = _cairo_uint32_to_uint64 (quotient); + result.rem = remainder; + } + return result; +} + +cairo_quorem64_t +_cairo_int_96by64_32x64_divrem (cairo_int128_t num, cairo_int64_t den) +{ + int num_neg = _cairo_int128_negative (num); + int den_neg = _cairo_int64_negative (den); + cairo_uint64_t nonneg_den; + cairo_uquorem64_t uqr; + cairo_quorem64_t qr; + + if (num_neg) + num = _cairo_int128_negate (num); + if (den_neg) + nonneg_den = _cairo_int64_negate (den); + else + nonneg_den = den; + + uqr = _cairo_uint_96by64_32x64_divrem (num, nonneg_den); + if (_cairo_uint64_eq (uqr.rem, nonneg_den)) { + /* bail on overflow. */ + qr.quo = _cairo_uint32s_to_uint64 (0x7FFFFFFF, -1U); + qr.rem = den; + return qr; + } + + if (num_neg) + qr.rem = _cairo_int64_negate (uqr.rem); + else + qr.rem = uqr.rem; + if (num_neg != den_neg) + qr.quo = _cairo_int64_negate (uqr.quo); + else + qr.quo = uqr.quo; + return qr; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-win32.h b/local/recipes/libs/cairo/source/src/cairo-win32.h new file mode 100644 index 0000000000..db4cac69f4 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-win32.h @@ -0,0 +1,116 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Owen Taylor + */ + +#ifndef _CAIRO_WIN32_H_ +#define _CAIRO_WIN32_H_ + +#include "cairo.h" + +#if CAIRO_HAS_WIN32_SURFACE + +#include + +CAIRO_BEGIN_DECLS + +cairo_public cairo_surface_t * +cairo_win32_surface_create (HDC hdc); + +cairo_public cairo_surface_t * +cairo_win32_surface_create_with_format (HDC hdc, + cairo_format_t format); + +cairo_public cairo_surface_t * +cairo_win32_printing_surface_create (HDC hdc); + +cairo_public cairo_surface_t * +cairo_win32_surface_create_with_ddb (HDC hdc, + cairo_format_t format, + int width, + int height); + +cairo_public cairo_surface_t * +cairo_win32_surface_create_with_dib (cairo_format_t format, + int width, + int height); + +cairo_public HDC +cairo_win32_surface_get_dc (cairo_surface_t *surface); + +cairo_public cairo_surface_t * +cairo_win32_surface_get_image (cairo_surface_t *surface); + +#if CAIRO_HAS_WIN32_FONT + +/* + * Win32 font support + */ + +cairo_public cairo_font_face_t * +cairo_win32_font_face_create_for_logfontw (LOGFONTW *logfont); + +cairo_public cairo_font_face_t * +cairo_win32_font_face_create_for_hfont (HFONT font); + +cairo_public cairo_font_face_t * +cairo_win32_font_face_create_for_logfontw_hfont (LOGFONTW *logfont, HFONT font); + +cairo_public cairo_status_t +cairo_win32_scaled_font_select_font (cairo_scaled_font_t *scaled_font, + HDC hdc); + +cairo_public void +cairo_win32_scaled_font_done_font (cairo_scaled_font_t *scaled_font); + +cairo_public double +cairo_win32_scaled_font_get_metrics_factor (cairo_scaled_font_t *scaled_font); + +cairo_public void +cairo_win32_scaled_font_get_logical_to_device (cairo_scaled_font_t *scaled_font, + cairo_matrix_t *logical_to_device); + +cairo_public void +cairo_win32_scaled_font_get_device_to_logical (cairo_scaled_font_t *scaled_font, + cairo_matrix_t *device_to_logical); + +#endif /* CAIRO_HAS_WIN32_FONT */ + +CAIRO_END_DECLS + +#else /* CAIRO_HAS_WIN32_SURFACE */ +# error Cairo was not compiled with support for the win32 backend +#endif /* CAIRO_HAS_WIN32_SURFACE */ + +#endif /* _CAIRO_WIN32_H_ */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xcb-connection-core.c b/local/recipes/libs/cairo/source/src/cairo-xcb-connection-core.c new file mode 100644 index 0000000000..71d2e515b3 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xcb-connection-core.c @@ -0,0 +1,284 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-xcb-private.h" + +#include + +xcb_pixmap_t +_cairo_xcb_connection_create_pixmap (cairo_xcb_connection_t *connection, + uint8_t depth, + xcb_drawable_t drawable, + uint16_t width, + uint16_t height) +{ + xcb_pixmap_t pixmap = xcb_generate_id (connection->xcb_connection); + + assert (width > 0); + assert (height > 0); + xcb_create_pixmap (connection->xcb_connection, + depth, pixmap, drawable, + width, height); + return pixmap; +} + +xcb_gcontext_t +_cairo_xcb_connection_create_gc (cairo_xcb_connection_t *connection, + xcb_drawable_t drawable, + uint32_t value_mask, + uint32_t *values) +{ + xcb_gcontext_t gc = xcb_generate_id (connection->xcb_connection); + xcb_create_gc (connection->xcb_connection, gc, drawable, + value_mask, values); + return gc; +} + +void +_cairo_xcb_connection_change_gc (cairo_xcb_connection_t *connection, + xcb_gcontext_t gc, + uint32_t value_mask, + uint32_t *values) +{ + xcb_change_gc (connection->xcb_connection, gc, + value_mask, values); +} + +void +_cairo_xcb_connection_copy_area (cairo_xcb_connection_t *connection, + xcb_drawable_t src, + xcb_drawable_t dst, + xcb_gcontext_t gc, + int16_t src_x, + int16_t src_y, + int16_t dst_x, + int16_t dst_y, + uint16_t width, + uint16_t height) +{ + xcb_copy_area (connection->xcb_connection, src, dst, gc, + src_x, src_y, dst_x, dst_y, width, height); +} + +void +_cairo_xcb_connection_poly_fill_rectangle (cairo_xcb_connection_t *connection, + xcb_drawable_t dst, + xcb_gcontext_t gc, + uint32_t num_rectangles, + xcb_rectangle_t *rectangles) +{ + xcb_poly_fill_rectangle (connection->xcb_connection, dst, gc, + num_rectangles, rectangles); +} + +void +_cairo_xcb_connection_put_image (cairo_xcb_connection_t *connection, + xcb_drawable_t dst, + xcb_gcontext_t gc, + uint16_t width, + uint16_t height, + int16_t dst_x, + int16_t dst_y, + uint8_t depth, + uint32_t stride, + void *data) +{ + const uint32_t req_size = 18; + uint32_t length = height * stride; + uint32_t len = (req_size + length) >> 2; + + if (len < connection->maximum_request_length) { + xcb_put_image (connection->xcb_connection, XCB_IMAGE_FORMAT_Z_PIXMAP, + dst, gc, width, height, dst_x, dst_y, 0, depth, + length, data); + } else { + int rows = (connection->maximum_request_length - req_size - 4) / stride; + if (rows > 0) { + do { + if (rows > height) + rows = height; + + length = rows * stride; + + xcb_put_image (connection->xcb_connection, XCB_IMAGE_FORMAT_Z_PIXMAP, + dst, gc, width, rows, dst_x, dst_y, 0, depth, length, data); + + height -= rows; + dst_y += rows; + data = (char *) data + length; + } while (height); + } else { + ASSERT_NOT_REACHED; + } + } +} + +static void +_cairo_xcb_connection_do_put_subimage (cairo_xcb_connection_t *connection, + xcb_drawable_t dst, + xcb_gcontext_t gc, + int16_t src_x, + int16_t src_y, + uint16_t width, + uint16_t height, + uint16_t cpp, + int stride, + int16_t dst_x, + int16_t dst_y, + uint8_t depth, + void *_data) +{ + xcb_protocol_request_t xcb_req = { + 0 /* count */, + 0 /* ext */, + XCB_PUT_IMAGE /* opcode */, + 1 /* isvoid (doesn't cause a reply) */ + }; + xcb_put_image_request_t req; + struct iovec vec_stack[CAIRO_STACK_ARRAY_LENGTH (struct iovec)]; + struct iovec *vec = vec_stack; + uint32_t len = 0; + uint8_t *data = _data; + int n = 3; + /* Two extra entries are needed for xcb, two for us */ + int entries_needed = height + 2 + 2; + + req.format = XCB_IMAGE_FORMAT_Z_PIXMAP; + req.drawable = dst; + req.gc = gc; + req.width = width; + req.height = height; + req.dst_x = dst_x; + req.dst_y = dst_y; + req.left_pad = 0; + req.depth = depth; + req.pad0[0] = 0; + req.pad0[1] = 0; + + if (entries_needed > ARRAY_LENGTH (vec_stack)) { + vec = _cairo_malloc_ab (entries_needed, sizeof (struct iovec)); + if (unlikely (vec == NULL)) { + /* XXX loop over ARRAY_LENGTH (vec_stack) */ + return; + } + } + + data += src_y * stride + src_x * cpp; + /* vec[1] will be used in XCB if it has to use BigRequests or insert a sync, + * vec[0] is used if the internal queue needs to be flushed. */ + vec[2].iov_base = (char *) &req; + vec[2].iov_len = sizeof (req); + + /* Now comes the actual data */ + while (height--) { + vec[n].iov_base = data; + vec[n].iov_len = cpp * width; + len += cpp * width; + data += stride; + n++; + } + + /* And again some padding */ + vec[n].iov_base = 0; + vec[n].iov_len = -len & 3; + n++; + + /* For efficiency reasons, this functions writes the request "directly" to + * the xcb connection to avoid having to copy the data around. */ + assert (n == entries_needed); + xcb_req.count = n - 2; + xcb_send_request (connection->xcb_connection, 0, &vec[2], &xcb_req); + + if (vec != vec_stack) + free (vec); +} + +void +_cairo_xcb_connection_put_subimage (cairo_xcb_connection_t *connection, + xcb_drawable_t dst, + xcb_gcontext_t gc, + int16_t src_x, + int16_t src_y, + uint16_t width, + uint16_t height, + uint16_t cpp, + int stride, + int16_t dst_x, + int16_t dst_y, + uint8_t depth, + void *_data) +{ + const uint32_t req_size = sizeof(xcb_put_image_request_t); + uint32_t length = height * cpp * width; + uint32_t len = (req_size + length) >> 2; + + if (len < connection->maximum_request_length) { + _cairo_xcb_connection_do_put_subimage (connection, dst, gc, src_x, src_y, + width, height, cpp, stride, dst_x, dst_y, depth, _data); + } else { + int rows = (connection->maximum_request_length - req_size - 4) / (cpp * width); + if (rows > 0) { + do { + if (rows > height) + rows = height; + + _cairo_xcb_connection_do_put_subimage (connection, dst, gc, src_x, src_y, + width, rows, cpp, stride, dst_x, dst_y, depth, _data); + + height -= rows; + dst_y += rows; + _data = (char *) _data + stride * rows; + } while (height); + } else { + ASSERT_NOT_REACHED; + } + } +} + +xcb_get_image_reply_t * +_cairo_xcb_connection_get_image (cairo_xcb_connection_t *connection, + xcb_drawable_t src, + int16_t src_x, + int16_t src_y, + uint16_t width, + uint16_t height) +{ + return xcb_get_image_reply (connection->xcb_connection, + xcb_get_image (connection->xcb_connection, + XCB_IMAGE_FORMAT_Z_PIXMAP, + src, + src_x, src_y, + width, height, + (uint32_t) -1), + NULL); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-xcb-connection-render.c b/local/recipes/libs/cairo/source/src/cairo-xcb-connection-render.c new file mode 100644 index 0000000000..e27b2b3b2c --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xcb-connection-render.c @@ -0,0 +1,297 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-xcb-private.h" + +#include + +void +_cairo_xcb_connection_render_create_picture (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + xcb_drawable_t drawable, + xcb_render_pictformat_t format, + uint32_t value_mask, + uint32_t *value_list) +{ + assert (connection->flags & CAIRO_XCB_HAS_RENDER); + xcb_render_create_picture (connection->xcb_connection, picture, drawable, + format, value_mask, value_list); +} + +void +_cairo_xcb_connection_render_change_picture (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + uint32_t value_mask, + uint32_t *value_list) +{ + assert (connection->flags & CAIRO_XCB_HAS_RENDER); + xcb_render_change_picture (connection->xcb_connection, picture, + value_mask, value_list); +} + +void +_cairo_xcb_connection_render_set_picture_clip_rectangles (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + int16_t clip_x_origin, + int16_t clip_y_origin, + uint32_t rectangles_len, + xcb_rectangle_t *rectangles) +{ + assert (connection->flags & CAIRO_XCB_HAS_RENDER); + xcb_render_set_picture_clip_rectangles (connection->xcb_connection, picture, + clip_x_origin, clip_y_origin, + rectangles_len, rectangles); +} + +void +_cairo_xcb_connection_render_free_picture (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture) +{ + assert (connection->flags & CAIRO_XCB_HAS_RENDER); + xcb_render_free_picture (connection->xcb_connection, picture); +} + +void +_cairo_xcb_connection_render_composite (cairo_xcb_connection_t *connection, + uint8_t op, + xcb_render_picture_t src, + xcb_render_picture_t mask, + xcb_render_picture_t dst, + int16_t src_x, + int16_t src_y, + int16_t mask_x, + int16_t mask_y, + int16_t dst_x, + int16_t dst_y, + uint16_t width, + uint16_t height) +{ + assert (connection->flags & CAIRO_XCB_RENDER_HAS_COMPOSITE); + xcb_render_composite (connection->xcb_connection, op, src, mask, dst, + src_x, src_y, mask_x, mask_y, dst_x, dst_y, width, height); +} + +void +_cairo_xcb_connection_render_trapezoids (cairo_xcb_connection_t *connection, + uint8_t op, + xcb_render_picture_t src, + xcb_render_picture_t dst, + xcb_render_pictformat_t mask_format, + int16_t src_x, + int16_t src_y, + uint32_t traps_len, + xcb_render_trapezoid_t *traps) +{ + assert (connection->flags & CAIRO_XCB_RENDER_HAS_COMPOSITE_TRAPEZOIDS); + xcb_render_trapezoids (connection->xcb_connection, op, src, dst, + mask_format, src_x, src_y, traps_len, traps); +} + +void +_cairo_xcb_connection_render_create_glyph_set (cairo_xcb_connection_t *connection, + xcb_render_glyphset_t id, + xcb_render_pictformat_t format) +{ + assert (connection->flags & CAIRO_XCB_HAS_RENDER); + xcb_render_create_glyph_set (connection->xcb_connection, id, format); +} + +void +_cairo_xcb_connection_render_free_glyph_set (cairo_xcb_connection_t *connection, + xcb_render_glyphset_t glyphset) +{ + assert (connection->flags & CAIRO_XCB_HAS_RENDER); + xcb_render_free_glyph_set (connection->xcb_connection, glyphset); +} + +void +_cairo_xcb_connection_render_add_glyphs (cairo_xcb_connection_t *connection, + xcb_render_glyphset_t glyphset, + uint32_t num_glyphs, + uint32_t *glyphs_id, + xcb_render_glyphinfo_t *glyphs, + uint32_t data_len, + uint8_t *data) +{ + assert (connection->flags & CAIRO_XCB_HAS_RENDER); + xcb_render_add_glyphs (connection->xcb_connection, glyphset, num_glyphs, + glyphs_id, glyphs, data_len, data); +} + +void +_cairo_xcb_connection_render_free_glyphs (cairo_xcb_connection_t *connection, + xcb_render_glyphset_t glyphset, + uint32_t num_glyphs, + xcb_render_glyph_t *glyphs) +{ + assert (connection->flags & CAIRO_XCB_HAS_RENDER); + xcb_render_free_glyphs (connection->xcb_connection, glyphset, num_glyphs, glyphs); +} + +void +_cairo_xcb_connection_render_composite_glyphs_8 (cairo_xcb_connection_t *connection, + uint8_t op, + xcb_render_picture_t src, + xcb_render_picture_t dst, + xcb_render_pictformat_t mask_format, + xcb_render_glyphset_t glyphset, + int16_t src_x, + int16_t src_y, + uint32_t glyphcmds_len, + uint8_t *glyphcmds) +{ + assert (connection->flags & CAIRO_XCB_HAS_RENDER); + xcb_render_composite_glyphs_8 (connection->xcb_connection, op, src, dst, mask_format, + glyphset, src_x, src_y, glyphcmds_len, glyphcmds); +} + +void +_cairo_xcb_connection_render_composite_glyphs_16 (cairo_xcb_connection_t *connection, + uint8_t op, + xcb_render_picture_t src, + xcb_render_picture_t dst, + xcb_render_pictformat_t mask_format, + xcb_render_glyphset_t glyphset, + int16_t src_x, + int16_t src_y, + uint32_t glyphcmds_len, + uint8_t *glyphcmds) +{ + assert (connection->flags & CAIRO_XCB_HAS_RENDER); + xcb_render_composite_glyphs_16 (connection->xcb_connection, op, src, dst, mask_format, + glyphset, src_x, src_y, glyphcmds_len, glyphcmds); +} + +void +_cairo_xcb_connection_render_composite_glyphs_32 (cairo_xcb_connection_t *connection, + uint8_t op, + xcb_render_picture_t src, + xcb_render_picture_t dst, + xcb_render_pictformat_t mask_format, + xcb_render_glyphset_t glyphset, + int16_t src_x, + int16_t src_y, + uint32_t glyphcmds_len, + uint8_t *glyphcmds) +{ + assert (connection->flags & CAIRO_XCB_HAS_RENDER); + xcb_render_composite_glyphs_32 (connection->xcb_connection, op, src, dst, mask_format, + glyphset, src_x, src_y, glyphcmds_len, glyphcmds); +} + +void +_cairo_xcb_connection_render_fill_rectangles (cairo_xcb_connection_t *connection, + uint8_t op, + xcb_render_picture_t dst, + xcb_render_color_t color, + uint32_t num_rects, + xcb_rectangle_t *rects) +{ + assert (connection->flags & CAIRO_XCB_RENDER_HAS_FILL_RECTANGLES); + xcb_render_fill_rectangles (connection->xcb_connection, op, dst, color, + num_rects, rects); +} + +void +_cairo_xcb_connection_render_set_picture_transform (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + xcb_render_transform_t *transform) +{ + assert (connection->flags & CAIRO_XCB_RENDER_HAS_PICTURE_TRANSFORM); + xcb_render_set_picture_transform (connection->xcb_connection, picture, *transform); +} + +void +_cairo_xcb_connection_render_set_picture_filter (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + uint16_t filter_len, + char *filter) +{ + assert (connection->flags & CAIRO_XCB_RENDER_HAS_FILTERS); + xcb_render_set_picture_filter (connection->xcb_connection, picture, + filter_len, filter, 0, NULL); +} + +void +_cairo_xcb_connection_render_create_solid_fill (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + xcb_render_color_t color) +{ + assert (connection->flags & CAIRO_XCB_RENDER_HAS_GRADIENTS); + xcb_render_create_solid_fill (connection->xcb_connection, picture, color); +} + +void +_cairo_xcb_connection_render_create_linear_gradient (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + xcb_render_pointfix_t p1, + xcb_render_pointfix_t p2, + uint32_t num_stops, + xcb_render_fixed_t *stops, + xcb_render_color_t *colors) +{ + assert (connection->flags & CAIRO_XCB_RENDER_HAS_GRADIENTS); + xcb_render_create_linear_gradient (connection->xcb_connection, picture, + p1, p2, num_stops, stops, colors); +} + +void +_cairo_xcb_connection_render_create_radial_gradient (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + xcb_render_pointfix_t inner, + xcb_render_pointfix_t outer, + xcb_render_fixed_t inner_radius, + xcb_render_fixed_t outer_radius, + uint32_t num_stops, + xcb_render_fixed_t *stops, + xcb_render_color_t *colors) +{ + assert (connection->flags & CAIRO_XCB_RENDER_HAS_GRADIENTS); + xcb_render_create_radial_gradient (connection->xcb_connection, picture, + inner, outer, inner_radius, outer_radius, + num_stops, stops, colors); +} + +void +_cairo_xcb_connection_render_create_conical_gradient (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + xcb_render_pointfix_t center, + xcb_render_fixed_t angle, + uint32_t num_stops, + xcb_render_fixed_t *stops, + xcb_render_color_t *colors) +{ + assert (connection->flags & CAIRO_XCB_RENDER_HAS_GRADIENTS); + xcb_render_create_conical_gradient (connection->xcb_connection, picture, + center, angle, num_stops, stops, colors); +} diff --git a/local/recipes/libs/cairo/source/src/cairo-xcb-connection-shm.c b/local/recipes/libs/cairo/source/src/cairo-xcb-connection-shm.c new file mode 100644 index 0000000000..140a73cd0c --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xcb-connection-shm.c @@ -0,0 +1,114 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#if CAIRO_HAS_XCB_SHM_FUNCTIONS + +#include "cairo-xcb-private.h" + +#include +#include + +uint32_t +_cairo_xcb_connection_shm_attach (cairo_xcb_connection_t *connection, + uint32_t id, + cairo_bool_t readonly) +{ + uint32_t segment = xcb_generate_id (connection->xcb_connection); + assert (connection->flags & CAIRO_XCB_HAS_SHM); + xcb_shm_attach (connection->xcb_connection, segment, id, readonly); + return segment; +} + +void +_cairo_xcb_connection_shm_put_image (cairo_xcb_connection_t *connection, + xcb_drawable_t dst, + xcb_gcontext_t gc, + uint16_t total_width, + uint16_t total_height, + int16_t src_x, + int16_t src_y, + uint16_t width, + uint16_t height, + int16_t dst_x, + int16_t dst_y, + uint8_t depth, + uint32_t shm, + uint32_t offset) +{ + assert (connection->flags & CAIRO_XCB_HAS_SHM); + xcb_shm_put_image (connection->xcb_connection, dst, gc, total_width, total_height, + src_x, src_y, width, height, dst_x, dst_y, depth, + XCB_IMAGE_FORMAT_Z_PIXMAP, 0, shm, offset); +} + +cairo_status_t +_cairo_xcb_connection_shm_get_image (cairo_xcb_connection_t *connection, + xcb_drawable_t src, + int16_t src_x, + int16_t src_y, + uint16_t width, + uint16_t height, + uint32_t shmseg, + uint32_t offset) +{ + xcb_shm_get_image_reply_t *reply; + + assert (connection->flags & CAIRO_XCB_HAS_SHM); + reply = xcb_shm_get_image_reply (connection->xcb_connection, + xcb_shm_get_image (connection->xcb_connection, + src, + src_x, src_y, + width, height, + (uint32_t) -1, + XCB_IMAGE_FORMAT_Z_PIXMAP, + shmseg, offset), + NULL); + free (reply); + + if (!reply) { + /* an error here should be impossible */ + return _cairo_error (CAIRO_STATUS_READ_ERROR); + } + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_xcb_connection_shm_detach (cairo_xcb_connection_t *connection, + uint32_t segment) +{ + assert (connection->flags & CAIRO_XCB_HAS_SHM); + xcb_shm_detach (connection->xcb_connection, segment); +} + +#endif /* CAIRO_HAS_XCB_SHM_FUNCTIONS */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xcb-connection.c b/local/recipes/libs/cairo/source/src/cairo-xcb-connection.c new file mode 100644 index 0000000000..016ca1c0cd --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xcb-connection.c @@ -0,0 +1,952 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * Authors: + * Chris Wilson + */ + + +#include "cairoint.h" + +#include "cairo-xcb-private.h" +#include "cairo-hash-private.h" +#include "cairo-freelist-private.h" +#include "cairo-list-inline.h" + +#include +#include +#include + +#if CAIRO_HAS_XCB_SHM_FUNCTIONS +#include +#include +#include +#endif + +typedef struct _cairo_xcb_xrender_format { + cairo_hash_entry_t key; + xcb_render_pictformat_t xrender_format; +} cairo_xcb_xrender_format_t; + +typedef struct _cairo_xcb_xid { + cairo_list_t link; + uint32_t xid; +} cairo_xcb_xid_t; + +#define XCB_RENDER_AT_LEAST(V, major, minor) \ + (((V)->major_version > major) || \ + (((V)->major_version == major) && ((V)->minor_version >= minor))) + +#define XCB_RENDER_HAS_CREATE_PICTURE(surface) XCB_RENDER_AT_LEAST((surface), 0, 0) +#define XCB_RENDER_HAS_COMPOSITE(surface) XCB_RENDER_AT_LEAST((surface), 0, 0) +#define XCB_RENDER_HAS_COMPOSITE_TEXT(surface) XCB_RENDER_AT_LEAST((surface), 0, 0) + +#define XCB_RENDER_HAS_FILL_RECTANGLES(surface) XCB_RENDER_AT_LEAST((surface), 0, 1) + +#define XCB_RENDER_HAS_DISJOINT(surface) XCB_RENDER_AT_LEAST((surface), 0, 2) +#define XCB_RENDER_HAS_CONJOINT(surface) XCB_RENDER_AT_LEAST((surface), 0, 2) + +#define XCB_RENDER_HAS_TRAPEZOIDS(surface) XCB_RENDER_AT_LEAST((surface), 0, 4) +#define XCB_RENDER_HAS_TRIANGLES(surface) XCB_RENDER_AT_LEAST((surface), 0, 4) +#define XCB_RENDER_HAS_TRISTRIP(surface) XCB_RENDER_AT_LEAST((surface), 0, 4) +#define XCB_RENDER_HAS_TRIFAN(surface) XCB_RENDER_AT_LEAST((surface), 0, 4) + +#define XCB_RENDER_HAS_PICTURE_TRANSFORM(surface) XCB_RENDER_AT_LEAST((surface), 0, 6) +#define XCB_RENDER_HAS_FILTERS(surface) XCB_RENDER_AT_LEAST((surface), 0, 6) +#define XCB_RENDER_HAS_FILTER_GOOD(surface) FALSE +#define XCB_RENDER_HAS_FILTER_BEST(surface) FALSE +#define XCB_RENDER_HAS_SUBPIXEL_ORDER(surface) XCB_RENDER_AT_LEAST((surface), 0, 6) + +#define XCB_RENDER_HAS_EXTENDED_REPEAT(surface) XCB_RENDER_AT_LEAST((surface), 0, 10) +#define XCB_RENDER_HAS_GRADIENTS(surface) XCB_RENDER_AT_LEAST((surface), 0, 10) + +#define XCB_RENDER_HAS_PDF_OPERATORS(surface) XCB_RENDER_AT_LEAST((surface), 0, 11) + +static cairo_list_t connections; + +static cairo_status_t +_cairo_xcb_connection_find_visual_formats (cairo_xcb_connection_t *connection, + const xcb_render_query_pict_formats_reply_t *formats) +{ + xcb_render_pictscreen_iterator_t screens; + xcb_render_pictdepth_iterator_t depths; + xcb_render_pictvisual_iterator_t visuals; + + for (screens = xcb_render_query_pict_formats_screens_iterator (formats); + screens.rem; + xcb_render_pictscreen_next (&screens)) + { + for (depths = xcb_render_pictscreen_depths_iterator (screens.data); + depths.rem; + xcb_render_pictdepth_next (&depths)) + { + for (visuals = xcb_render_pictdepth_visuals_iterator (depths.data); + visuals.rem; + xcb_render_pictvisual_next (&visuals)) + { + cairo_xcb_xrender_format_t *f; + cairo_status_t status; + + f = _cairo_calloc (sizeof (cairo_xcb_xrender_format_t)); + if (unlikely (f == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + f->key.hash = visuals.data->visual; + f->xrender_format = visuals.data->format; + status = _cairo_hash_table_insert (connection->visual_to_xrender_format, + &f->key); + if (unlikely (status)) + return status; + } + } + } + + return CAIRO_STATUS_SUCCESS; +} + +#if 0 +static xcb_format_t * +find_format_for_depth (const xcb_setup_t *setup, uint8_t depth) +{ + xcb_format_t *fmt = xcb_setup_pixmap_formats (setup); + xcb_format_t *fmtend = fmt + xcb_setup_pixmap_formats_length (setup); + + for (; fmt != fmtend; ++fmt) + if (fmt->depth == depth) + return fmt; + + return 0; +} +#endif + +static cairo_status_t +_cairo_xcb_connection_parse_xrender_formats (cairo_xcb_connection_t *connection, + const xcb_render_query_pict_formats_reply_t *formats) +{ + xcb_render_pictforminfo_iterator_t i; + cairo_status_t status; + + for (i = xcb_render_query_pict_formats_formats_iterator (formats); + i.rem; + xcb_render_pictforminfo_next (&i)) + { + cairo_format_masks_t masks; + pixman_format_code_t pixman_format; + + if (i.data->type != XCB_RENDER_PICT_TYPE_DIRECT) + continue; + + masks.alpha_mask = + (unsigned long) i.data->direct.alpha_mask << i.data->direct.alpha_shift; + masks.red_mask = + (unsigned long) i.data->direct.red_mask << i.data->direct.red_shift; + masks.green_mask = + (unsigned long) i.data->direct.green_mask << i.data->direct.green_shift; + masks.blue_mask = + (unsigned long) i.data->direct.blue_mask << i.data->direct.blue_shift; + masks.bpp = i.data->depth; + + if (_pixman_format_from_masks (&masks, &pixman_format)) { + cairo_hash_entry_t key; + + key.hash = pixman_format; + if (! _cairo_hash_table_lookup (connection->xrender_formats, &key)) { + cairo_xcb_xrender_format_t *f; + + f = _cairo_calloc (sizeof (cairo_xcb_xrender_format_t)); + if (unlikely (f == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + f->key.hash = pixman_format; + f->xrender_format = i.data->id; + status = _cairo_hash_table_insert (connection->xrender_formats, + &f->key); + if (unlikely (status)) + return status; + +#if 0 + printf ("xrender %x -> (%lx, %lx, %lx, %lx, %d) %x [%d, %d]\n", + i.data->id, + masks.alpha_mask, + masks.red_mask, + masks.green_mask, + masks.blue_mask, + masks.bpp, + pixman_format, + PIXMAN_FORMAT_DEPTH(pixman_format), + PIXMAN_FORMAT_BPP(pixman_format)); +#endif + } + } + } + + status = _cairo_xcb_connection_find_visual_formats (connection, formats); + if (unlikely (status)) + return status; + + connection->standard_formats[CAIRO_FORMAT_A1] = + _cairo_xcb_connection_get_xrender_format (connection, PIXMAN_a1); + + connection->standard_formats[CAIRO_FORMAT_A8] = + _cairo_xcb_connection_get_xrender_format (connection, PIXMAN_a8); + + connection->standard_formats[CAIRO_FORMAT_RGB24] = + _cairo_xcb_connection_get_xrender_format (connection, + PIXMAN_FORMAT (24, + PIXMAN_TYPE_ARGB, + 0, 8, 8, 8)); + if (connection->standard_formats[CAIRO_FORMAT_RGB24] == XCB_NONE) { + connection->standard_formats[CAIRO_FORMAT_RGB24] = + _cairo_xcb_connection_get_xrender_format (connection, + PIXMAN_FORMAT (24, PIXMAN_TYPE_ABGR, + 0, 8, 8, 8)); + } + + connection->standard_formats[CAIRO_FORMAT_ARGB32] = + _cairo_xcb_connection_get_xrender_format (connection, PIXMAN_a8r8g8b8); + if (connection->standard_formats[CAIRO_FORMAT_ARGB32] == XCB_NONE) { + connection->standard_formats[CAIRO_FORMAT_ARGB32] = + _cairo_xcb_connection_get_xrender_format (connection, PIXMAN_a8b8g8r8); + } + + return CAIRO_STATUS_SUCCESS; +} + +/* + * We require support for depth 1, 8, 24 and 32 pixmaps + */ +#define DEPTH_MASK(d) ((uint32_t)(1) << ((d) - 1)) +#define REQUIRED_DEPTHS (DEPTH_MASK(1) | \ + DEPTH_MASK(8) | \ + DEPTH_MASK(24) | \ + DEPTH_MASK(32)) +static cairo_bool_t +pixmap_depths_usable (cairo_xcb_connection_t *connection, + uint32_t missing, + xcb_drawable_t root) +{ + xcb_connection_t *c = connection->xcb_connection; + xcb_void_cookie_t create_cookie[32]; + xcb_pixmap_t pixmap; + cairo_bool_t success = TRUE; + int depth, i, j; + + pixmap = xcb_generate_id (connection->xcb_connection); + + for (depth = 1, i = 0; depth <= 32; depth++) { + if (missing & DEPTH_MASK(depth)) { + create_cookie[i] = xcb_create_pixmap_checked (c, depth, pixmap, root, 1, 1); + xcb_free_pixmap (c, pixmap); + if (!create_cookie[i].sequence) { + success = FALSE; + break; + } + i++; + } + } + + for (j = 0; j < i; j++) { + xcb_generic_error_t *create_error = xcb_request_check (c, create_cookie[j]); + success &= create_error == NULL; + free (create_error); + } + + return success; +} + +static cairo_bool_t +has_required_depths (cairo_xcb_connection_t *connection) +{ + xcb_screen_iterator_t screens; + + for (screens = xcb_setup_roots_iterator (connection->root); + screens.rem; + xcb_screen_next (&screens)) + { + xcb_depth_iterator_t depths; + uint32_t missing = REQUIRED_DEPTHS; + + for (depths = xcb_screen_allowed_depths_iterator (screens.data); + depths.rem; + xcb_depth_next (&depths)) + { + missing &= ~DEPTH_MASK (depths.data->depth); + } + if (missing == 0) + continue; + + /* + * Ok, this is ugly. It should be sufficient at this + * point to just return false, but Xinerama is broken at + * this point and only advertises depths which have an + * associated visual. Of course, the other depths still + * work, but the only way to find out is to try them. + */ + if (! pixmap_depths_usable (connection, missing, screens.data->root)) + return FALSE; + } + + return TRUE; +} + +static xcb_render_query_version_reply_t * +_render_restrict_env(xcb_render_query_version_reply_t *version) +{ + const char *env; + + if (version == NULL) + return NULL; + + env = getenv ("CAIRO_DEBUG"); + if (env != NULL) + env = strstr (env, "xrender-version="); + if (env != NULL) { + int max_render_major, max_render_minor; + + env += sizeof ("xrender-version=") - 1; + if (sscanf (env, "%d.%d", &max_render_major, &max_render_minor) != 2) + max_render_major = max_render_minor = -1; + + if (max_render_major < 0 || max_render_minor < 0) { + free (version); + return NULL; + } + + if (max_render_major < (int) version->major_version || + (max_render_major == (int) version->major_version && + max_render_minor < (int) version->minor_version)) + { + version->major_version = max_render_major; + version->minor_version = max_render_minor; + } + } + + return version; +} + +static cairo_status_t +_cairo_xcb_connection_query_render (cairo_xcb_connection_t *connection) +{ + xcb_connection_t *c = connection->xcb_connection; + xcb_render_query_version_cookie_t version_cookie; + xcb_render_query_pict_formats_cookie_t formats_cookie; + xcb_render_query_version_reply_t *version; + xcb_render_query_pict_formats_reply_t *formats; + cairo_status_t status; + cairo_bool_t present; + + version_cookie = xcb_render_query_version (c, XCB_RENDER_MAJOR_VERSION, XCB_RENDER_MINOR_VERSION); + formats_cookie = xcb_render_query_pict_formats (c); + + present = has_required_depths (connection); + version = xcb_render_query_version_reply (c, version_cookie, 0); + formats = xcb_render_query_pict_formats_reply (c, formats_cookie, 0); + + version = _render_restrict_env (version); + + if (! present || version == NULL || formats == NULL) { + free (version); + free (formats); + return CAIRO_STATUS_SUCCESS; + } + + /* always true if the extension is present (i.e. >= 0.0) */ + connection->flags |= CAIRO_XCB_HAS_RENDER; + connection->flags |= CAIRO_XCB_RENDER_HAS_COMPOSITE; + connection->flags |= CAIRO_XCB_RENDER_HAS_COMPOSITE_GLYPHS; + + if (XCB_RENDER_HAS_FILL_RECTANGLES (version)) + connection->flags |= CAIRO_XCB_RENDER_HAS_FILL_RECTANGLES; + + if (XCB_RENDER_HAS_TRAPEZOIDS (version)) + connection->flags |= CAIRO_XCB_RENDER_HAS_COMPOSITE_TRAPEZOIDS; + + if (XCB_RENDER_HAS_PICTURE_TRANSFORM (version)) + connection->flags |= CAIRO_XCB_RENDER_HAS_PICTURE_TRANSFORM; + + if (XCB_RENDER_HAS_FILTERS (version)) + connection->flags |= CAIRO_XCB_RENDER_HAS_FILTERS; + + if (XCB_RENDER_HAS_FILTER_GOOD (version)) + connection->flags |= CAIRO_XCB_RENDER_HAS_FILTER_GOOD; + + if (XCB_RENDER_HAS_FILTER_BEST (version)) + connection->flags |= CAIRO_XCB_RENDER_HAS_FILTER_BEST; + + if (XCB_RENDER_HAS_PDF_OPERATORS (version)) + connection->flags |= CAIRO_XCB_RENDER_HAS_PDF_OPERATORS; + + if (XCB_RENDER_HAS_EXTENDED_REPEAT (version)) + connection->flags |= CAIRO_XCB_RENDER_HAS_EXTENDED_REPEAT; + + if (XCB_RENDER_HAS_GRADIENTS (version)) + connection->flags |= CAIRO_XCB_RENDER_HAS_GRADIENTS; + + if (XCB_RENDER_HAS_SUBPIXEL_ORDER (version)) { + uint32_t screen; + uint32_t *subpixel = xcb_render_query_pict_formats_subpixels(formats); + + /* The spec explicitly allows to have too few entries in the reply... */ + for (screen = 0; screen < formats->num_subpixel && screen < connection->root->roots_len; screen++) + connection->subpixel_orders[screen] = subpixel[screen]; + } + + free (version); + + status = _cairo_xcb_connection_parse_xrender_formats (connection, formats); + free (formats); + + return status; +} + +#if 0 +static void +_cairo_xcb_connection_query_cairo (cairo_xcb_connection_t *connection) +{ + xcb_connection_t *c = connection->xcb_connection; + xcb_cairo_query_version_reply_t *version; + + version = xcb_cairo_query_version_reply (c, + xcb_cairo_query_version (c, 0, 0), + 0); + + free (version); +} +#endif + +#if CAIRO_HAS_XCB_SHM_FUNCTIONS +static cairo_bool_t +can_use_shm (cairo_xcb_connection_t *connection) +{ + cairo_bool_t success = TRUE; + xcb_connection_t *c = connection->xcb_connection; + xcb_void_cookie_t cookie[2]; + xcb_generic_error_t *error; + int shmid; + uint32_t shmseg; + void *ptr; + + shmid = shmget (IPC_PRIVATE, 0x1000, IPC_CREAT | 0600); + if (shmid == -1) + return FALSE; + + ptr = shmat (shmid, NULL, 0); + if (ptr == (char *) -1) { + shmctl (shmid, IPC_RMID, NULL); + return FALSE; + } + + shmseg = xcb_generate_id (connection->xcb_connection); + cookie[0] = xcb_shm_attach_checked (c, shmseg, shmid, FALSE); + cookie[1] = xcb_shm_detach_checked (c, shmseg); + + error = xcb_request_check (c, cookie[0]); + if (error != NULL) + success = FALSE; + + error = xcb_request_check (c, cookie[1]); + if (error != NULL) + success = FALSE; + + shmctl (shmid, IPC_RMID, NULL); + shmdt (ptr); + + return success; +} + +static void +_cairo_xcb_connection_query_shm (cairo_xcb_connection_t *connection) +{ + xcb_connection_t *c = connection->xcb_connection; + xcb_shm_query_version_reply_t *version; + + version = xcb_shm_query_version_reply (c, xcb_shm_query_version (c), 0); + if (version == NULL) + return; + + free (version); + + if (can_use_shm (connection)) + connection->flags |= CAIRO_XCB_HAS_SHM; +} +#endif + +static cairo_status_t +_device_flush (void *device) +{ + cairo_xcb_connection_t *connection = device; + cairo_status_t status; + + status = cairo_device_acquire (&connection->device); + if (unlikely (status)) + return status; + +#if CAIRO_HAS_XCB_SHM_FUNCTIONS + _cairo_xcb_connection_shm_mem_pools_flush (connection); +#endif + + xcb_flush (connection->xcb_connection); + + cairo_device_release (&connection->device); + return CAIRO_STATUS_SUCCESS; +} + +static void +_pluck_xrender_format (void *entry, + void *closure) +{ + _cairo_hash_table_remove (closure, entry); + free (entry); +} + +static void +_device_finish (void *device) +{ + cairo_xcb_connection_t *connection = device; + cairo_bool_t was_cached = FALSE; + + if (! cairo_list_is_empty (&connection->link)) { + CAIRO_MUTEX_LOCK (_cairo_xcb_connections_mutex); + cairo_list_del (&connection->link); + CAIRO_MUTEX_UNLOCK (_cairo_xcb_connections_mutex); + was_cached = TRUE; + } + + while (! cairo_list_is_empty (&connection->fonts)) { + cairo_xcb_font_t *font; + + font = cairo_list_first_entry (&connection->fonts, + cairo_xcb_font_t, + link); + _cairo_xcb_font_close (font); + } + + while (! cairo_list_is_empty (&connection->screens)) { + cairo_xcb_screen_t *screen; + + screen = cairo_list_first_entry (&connection->screens, + cairo_xcb_screen_t, + link); + _cairo_xcb_screen_finish (screen); + } + +#if CAIRO_HAS_XCB_SHM_FUNCTIONS + /* _cairo_xcb_screen_finish finishes surfaces. If any of those surfaces had + * a fallback image, we might have done a SHM PutImage. */ + _cairo_xcb_connection_shm_mem_pools_flush (connection); +#endif + + if (was_cached) + cairo_device_destroy (device); +} + +static void +_device_destroy (void *device) +{ + cairo_xcb_connection_t *connection = device; + + _cairo_hash_table_foreach (connection->xrender_formats, + _pluck_xrender_format, connection->xrender_formats); + _cairo_hash_table_destroy (connection->xrender_formats); + + _cairo_hash_table_foreach (connection->visual_to_xrender_format, + _pluck_xrender_format, + connection->visual_to_xrender_format); + _cairo_hash_table_destroy (connection->visual_to_xrender_format); + +#if CAIRO_HAS_XCB_SHM_FUNCTIONS + _cairo_xcb_connection_shm_mem_pools_fini (connection); +#endif + _cairo_freepool_fini (&connection->shm_info_freelist); + + CAIRO_MUTEX_FINI (connection->shm_mutex); + CAIRO_MUTEX_FINI (connection->screens_mutex); + + free (connection->subpixel_orders); + free (connection); +} + +static const cairo_device_backend_t _cairo_xcb_device_backend = { + CAIRO_DEVICE_TYPE_XCB, + + NULL, NULL, /* lock, unlock */ + + _device_flush, + _device_finish, + _device_destroy, +}; + +cairo_xcb_connection_t * +_cairo_xcb_connection_get (xcb_connection_t *xcb_connection) +{ + cairo_xcb_connection_t *connection; + const xcb_query_extension_reply_t *ext; + cairo_status_t status; + + CAIRO_MUTEX_INITIALIZE (); + + CAIRO_MUTEX_LOCK (_cairo_xcb_connections_mutex); + if (connections.next == NULL) { + /* XXX _cairo_init () */ + cairo_list_init (&connections); + } + + cairo_list_foreach_entry (connection, + cairo_xcb_connection_t, + &connections, + link) + { + if (connection->xcb_connection == xcb_connection) { + /* Maintain MRU order. */ + if (connections.next != &connection->link) + cairo_list_move (&connection->link, &connections); + + goto unlock; + } + } + + connection = _cairo_calloc (sizeof (cairo_xcb_connection_t)); + if (unlikely (connection == NULL)) + goto unlock; + + _cairo_device_init (&connection->device, &_cairo_xcb_device_backend); + + connection->xcb_connection = xcb_connection; + + cairo_list_init (&connection->fonts); + cairo_list_init (&connection->screens); + cairo_list_init (&connection->link); + connection->xrender_formats = _cairo_hash_table_create (NULL); + if (connection->xrender_formats == NULL) { + CAIRO_MUTEX_FINI (connection->device.mutex); + free (connection); + connection = NULL; + goto unlock; + } + + connection->visual_to_xrender_format = _cairo_hash_table_create (NULL); + if (connection->visual_to_xrender_format == NULL) { + _cairo_hash_table_destroy (connection->xrender_formats); + CAIRO_MUTEX_FINI (connection->device.mutex); + free (connection); + connection = NULL; + goto unlock; + } + + cairo_list_init (&connection->shm_pools); + cairo_list_init (&connection->shm_pending); + _cairo_freepool_init (&connection->shm_info_freelist, + sizeof (cairo_xcb_shm_info_t)); + + connection->maximum_request_length = + xcb_get_maximum_request_length (xcb_connection); + + CAIRO_MUTEX_INIT (connection->shm_mutex); + CAIRO_MUTEX_INIT (connection->screens_mutex); + + CAIRO_MUTEX_LOCK (connection->device.mutex); + + connection->flags = 0; + connection->force_precision = -1; + + xcb_prefetch_extension_data (xcb_connection, &xcb_big_requests_id); + xcb_prefetch_extension_data (xcb_connection, &xcb_render_id); +#if CAIRO_HAS_XCB_SHM_FUNCTIONS + xcb_prefetch_extension_data (xcb_connection, &xcb_shm_id); +#endif +#if 0 + xcb_prefetch_extension_data (xcb_connection, &xcb_cairo_id); +#endif + + xcb_prefetch_maximum_request_length (xcb_connection); + + connection->root = xcb_get_setup (xcb_connection); + connection->render = NULL; + connection->subpixel_orders = _cairo_calloc_ab (connection->root->roots_len, + sizeof(*connection->subpixel_orders)); + if (unlikely (connection->subpixel_orders == NULL)) { + CAIRO_MUTEX_UNLOCK (connection->device.mutex); + _cairo_xcb_connection_destroy (connection); + connection = NULL; + goto unlock; + } + + ext = xcb_get_extension_data (xcb_connection, &xcb_render_id); + if (ext != NULL && ext->present) { + status = _cairo_xcb_connection_query_render (connection); + if (unlikely (status)) { + CAIRO_MUTEX_UNLOCK (connection->device.mutex); + _cairo_xcb_connection_destroy (connection); + connection = NULL; + goto unlock; + } + + connection->render = ext; + } + +#if 0 + ext = xcb_get_extension_data (connection, &xcb_cairo_id); + if (ext != NULL && ext->present) + _cairo_xcb_connection_query_cairo (connection); +#endif + + connection->shm = NULL; +#if CAIRO_HAS_XCB_SHM_FUNCTIONS + ext = xcb_get_extension_data (xcb_connection, &xcb_shm_id); + if (ext != NULL && ext->present) { + _cairo_xcb_connection_query_shm (connection); + connection->shm = ext; + } +#endif + + connection->original_flags = connection->flags; + + CAIRO_MUTEX_UNLOCK (connection->device.mutex); + + cairo_list_add (&connection->link, &connections); +unlock: + CAIRO_MUTEX_UNLOCK (_cairo_xcb_connections_mutex); + + return connection; +} + +xcb_render_pictformat_t +_cairo_xcb_connection_get_xrender_format (cairo_xcb_connection_t *connection, + pixman_format_code_t pixman_format) +{ + cairo_hash_entry_t key; + cairo_xcb_xrender_format_t *format; + + key.hash = pixman_format; + format = _cairo_hash_table_lookup (connection->xrender_formats, &key); + return format ? format->xrender_format : XCB_NONE; +} + +xcb_render_pictformat_t +_cairo_xcb_connection_get_xrender_format_for_visual (cairo_xcb_connection_t *connection, + const xcb_visualid_t visual) +{ + cairo_hash_entry_t key; + cairo_xcb_xrender_format_t *format; + + key.hash = visual; + format = _cairo_hash_table_lookup (connection->visual_to_xrender_format, &key); + return format ? format->xrender_format : XCB_NONE; +} + +/** + * cairo_xcb_device_get_connection: + * @device: a #cairo_device_t for the XCB backend + * + * Get the connection for the XCB device. + * + * Returns: the #xcb_connection_t for the connection + * + * Since: 1.12 + **/ +xcb_connection_t * +cairo_xcb_device_get_connection (cairo_device_t *device) +{ + if (device->backend->type != CAIRO_DEVICE_TYPE_XCB) + return NULL; + + return ((cairo_xcb_connection_t *)device)->xcb_connection; +} + +/* public (debug) interface */ + +/** + * cairo_xcb_device_debug_cap_xshm_version: + * @device: a #cairo_device_t for the XCB backend + * @major_version: major version to restrict to + * @minor_version: minor version to restrict to + * + * Restricts all future XCB surfaces for this devices to the specified version + * of the SHM extension. This function exists solely for debugging purpose. + * It let's you find out how cairo would behave with an older version of + * the SHM extension. + * + * Use the special values -1 and -1 for disabling the SHM extension. + * + * Since: 1.12 + **/ +void +cairo_xcb_device_debug_cap_xshm_version (cairo_device_t *device, + int major_version, + int minor_version) +{ + cairo_xcb_connection_t *connection = (cairo_xcb_connection_t *) device; + + if (device->backend->type != CAIRO_DEVICE_TYPE_XCB) { + cairo_status_t status; + + status = _cairo_device_set_error (device, CAIRO_STATUS_DEVICE_TYPE_MISMATCH); + (void) status; + return; + } + + /* First reset all the SHM flags to their original value. This works + * because we only ever clear bits after the connection was created. + */ + connection->flags |= (connection->original_flags & CAIRO_XCB_SHM_MASK); + + /* clear any flags that are inappropriate for the desired version */ + if (major_version < 0 && minor_version < 0) { + connection->flags &= ~(CAIRO_XCB_HAS_SHM); + } +} + +/** + * cairo_xcb_device_debug_cap_xrender_version: + * @device: a #cairo_device_t for the XCB backend + * @major_version: major version to restrict to + * @minor_version: minor version to restrict to + * + * Restricts all future XCB surfaces for this devices to the specified version + * of the RENDER extension. This function exists solely for debugging purpose. + * It let's you find out how cairo would behave with an older version of + * the RENDER extension. + * + * Use the special values -1 and -1 for disabling the RENDER extension. + * + * Since: 1.12 + **/ +void +cairo_xcb_device_debug_cap_xrender_version (cairo_device_t *device, + int major_version, + int minor_version) +{ + cairo_xcb_connection_t *connection = (cairo_xcb_connection_t *) device; + + if (device->backend->type != CAIRO_DEVICE_TYPE_XCB) { + cairo_status_t status; + + status = _cairo_device_set_error (device, CAIRO_STATUS_DEVICE_TYPE_MISMATCH); + (void) status; + return; + } + + /* First reset all the RENDER flags to their original value. This works + * because we only ever clear bits after the connection was created. + */ + connection->flags |= (connection->original_flags & CAIRO_XCB_RENDER_MASK); + + /* clear any flags that are inappropriate for the desired version */ + if (major_version < 0 && minor_version < 0) { + connection->flags &= ~(CAIRO_XCB_HAS_RENDER | + CAIRO_XCB_RENDER_HAS_COMPOSITE | + CAIRO_XCB_RENDER_HAS_COMPOSITE_GLYPHS | + CAIRO_XCB_RENDER_HAS_FILL_RECTANGLES | + CAIRO_XCB_RENDER_HAS_COMPOSITE_TRAPEZOIDS | + CAIRO_XCB_RENDER_HAS_PICTURE_TRANSFORM | + CAIRO_XCB_RENDER_HAS_FILTERS | + CAIRO_XCB_RENDER_HAS_FILTER_GOOD | + CAIRO_XCB_RENDER_HAS_FILTER_BEST | + CAIRO_XCB_RENDER_HAS_PDF_OPERATORS | + CAIRO_XCB_RENDER_HAS_EXTENDED_REPEAT | + CAIRO_XCB_RENDER_HAS_GRADIENTS); + } else { + xcb_render_query_version_reply_t version; + + version.major_version = major_version; + version.minor_version = minor_version; + + if (! XCB_RENDER_HAS_FILL_RECTANGLES (&version)) + connection->flags &= ~CAIRO_XCB_RENDER_HAS_FILL_RECTANGLES; + + if (! XCB_RENDER_HAS_TRAPEZOIDS (&version)) + connection->flags &= ~CAIRO_XCB_RENDER_HAS_COMPOSITE_TRAPEZOIDS; + + if (! XCB_RENDER_HAS_PICTURE_TRANSFORM (&version)) + connection->flags &= ~CAIRO_XCB_RENDER_HAS_PICTURE_TRANSFORM; + + if (! XCB_RENDER_HAS_FILTERS (&version)) + connection->flags &= ~CAIRO_XCB_RENDER_HAS_FILTERS; + + if (! XCB_RENDER_HAS_PDF_OPERATORS (&version)) + connection->flags &= ~CAIRO_XCB_RENDER_HAS_PDF_OPERATORS; + + if (! XCB_RENDER_HAS_EXTENDED_REPEAT (&version)) + connection->flags &= ~CAIRO_XCB_RENDER_HAS_EXTENDED_REPEAT; + + if (! XCB_RENDER_HAS_GRADIENTS (&version)) + connection->flags &= ~CAIRO_XCB_RENDER_HAS_GRADIENTS; + } +} + +/** + * cairo_xcb_device_debug_set_precision: + * @device: a #cairo_device_t for the XCB backend + * @precision: the precision to use + * + * Render supports two modes of precision when rendering trapezoids. Set + * the precision to the desired mode. + * + * Since: 1.12 + **/ +void +cairo_xcb_device_debug_set_precision (cairo_device_t *device, + int precision) +{ + if (device == NULL || device->status) + return; + if (device->backend->type != CAIRO_DEVICE_TYPE_XCB) { + cairo_status_t status; + + status = _cairo_device_set_error (device, CAIRO_STATUS_DEVICE_TYPE_MISMATCH); + (void) status; + return; + } + + ((cairo_xcb_connection_t *) device)->force_precision = precision; +} + +/** + * cairo_xcb_device_debug_get_precision: + * @device: a #cairo_device_t for the XCB backend + * + * Get the Xrender precision mode. + * + * Returns: the render precision mode + * + * Since: 1.12 + **/ +int +cairo_xcb_device_debug_get_precision (cairo_device_t *device) +{ + if (device == NULL || device->status) + return -1; + if (device->backend->type != CAIRO_DEVICE_TYPE_XCB) { + cairo_status_t status; + + status = _cairo_device_set_error (device, CAIRO_STATUS_DEVICE_TYPE_MISMATCH); + (void) status; + return -1; + } + + return ((cairo_xcb_connection_t *) device)->force_precision; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-xcb-private.h b/local/recipes/libs/cairo/source/src/cairo-xcb-private.h new file mode 100644 index 0000000000..95805f8a93 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xcb-private.h @@ -0,0 +1,773 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributors(s): + * Chris Wilson + */ + +#ifndef CAIRO_XCB_PRIVATE_H +#define CAIRO_XCB_PRIVATE_H + +#include "cairoint.h" + +#include "cairo-xcb.h" + +#include "cairo-cache-private.h" +#include "cairo-compiler-private.h" +#include "cairo-device-private.h" +#include "cairo-error-private.h" +#include "cairo-freelist-private.h" +#include "cairo-list-private.h" +#include "cairo-mutex-private.h" +#include "cairo-pattern-private.h" +#include "cairo-reference-count-private.h" +#include "cairo-scaled-font-private.h" +#include "cairo-spans-private.h" +#include "cairo-surface-private.h" + +#include +#include +#include +#include + +#define XLIB_COORD_MAX 32767 + +/* maximum number of cached GC's */ +#define GC_CACHE_SIZE 4 + +#define CAIRO_XCB_RENDER_AT_LEAST(major, minor) \ + ((XCB_RENDER_MAJOR_VERSION > major) || \ + ((XCB_RENDER_MAJOR_VERSION == major) && (XCB_RENDER_MINOR_VERSION >= minor))) + +typedef struct _cairo_xcb_connection cairo_xcb_connection_t; +typedef struct _cairo_xcb_font cairo_xcb_font_t; +typedef struct _cairo_xcb_screen cairo_xcb_screen_t; +typedef struct _cairo_xcb_surface cairo_xcb_surface_t; +typedef struct _cairo_xcb_picture cairo_xcb_picture_t; +typedef struct _cairo_xcb_shm_mem_pool cairo_xcb_shm_mem_pool_t; +typedef struct _cairo_xcb_shm_info cairo_xcb_shm_info_t; +typedef struct _cairo_xcb_resources cairo_xcb_resources_t; + +struct _cairo_xcb_shm_info { + cairo_xcb_connection_t *connection; + uint32_t shm; + uint32_t offset; + size_t size; + void *mem; + cairo_xcb_shm_mem_pool_t *pool; + xcb_get_input_focus_cookie_t sync; + cairo_list_t pending; +}; + +struct _cairo_xcb_surface { + cairo_surface_t base; + cairo_image_surface_t *fallback; + cairo_boxes_t fallback_damage; + + cairo_xcb_connection_t *connection; + cairo_xcb_screen_t *screen; + + xcb_drawable_t drawable; + cairo_bool_t owns_pixmap; + + cairo_bool_t deferred_clear; + cairo_color_t deferred_clear_color; + + int width; + int height; + int depth; + + xcb_render_picture_t picture; + xcb_render_pictformat_t xrender_format; + pixman_format_code_t pixman_format; + uint32_t precision; + + cairo_list_t link; +}; + +struct _cairo_xcb_picture { + cairo_surface_t base; + + cairo_xcb_screen_t *screen; + xcb_render_picture_t picture; + xcb_render_pictformat_t xrender_format; + pixman_format_code_t pixman_format; + + int width, height; + + cairo_extend_t extend; + cairo_filter_t filter; + cairo_bool_t has_component_alpha; + xcb_render_transform_t transform; + + int x0, y0; + int x, y; + + cairo_list_t link; +}; + +#if CAIRO_HAS_XLIB_XCB_FUNCTIONS +typedef struct _cairo_xlib_xcb_surface { + cairo_surface_t base; + + cairo_xcb_surface_t *xcb; + + /* original settings for query */ + void *display; + void *screen; + void *visual; + void *format; +} cairo_xlib_xcb_surface_t; +#endif + + +enum { + GLYPHSET_INDEX_ARGB32, + GLYPHSET_INDEX_A8, + GLYPHSET_INDEX_A1, + NUM_GLYPHSETS +}; + +typedef struct _cairo_xcb_font_glyphset_free_glyphs { + xcb_render_glyphset_t glyphset; + int glyph_count; + xcb_render_glyph_t glyph_indices[128]; +} cairo_xcb_font_glyphset_free_glyphs_t; + +typedef struct _cairo_xcb_font_glyphset_info { + xcb_render_glyphset_t glyphset; + cairo_format_t format; + xcb_render_pictformat_t xrender_format; + cairo_xcb_font_glyphset_free_glyphs_t *pending_free_glyphs; +} cairo_xcb_font_glyphset_info_t; + +struct _cairo_xcb_font { + cairo_scaled_font_private_t base; + cairo_scaled_font_t *scaled_font; + cairo_xcb_connection_t *connection; + cairo_xcb_font_glyphset_info_t glyphset_info[NUM_GLYPHSETS]; + cairo_list_t link; +}; + +struct _cairo_xcb_screen { + cairo_xcb_connection_t *connection; + + xcb_screen_t *xcb_screen; + xcb_render_sub_pixel_t subpixel_order; + + xcb_gcontext_t gc[GC_CACHE_SIZE]; + uint8_t gc_depths[GC_CACHE_SIZE]; + + cairo_surface_t *stock_colors[CAIRO_STOCK_NUM_COLORS]; + struct { + cairo_surface_t *picture; + cairo_color_t color; + } solid_cache[16]; + int solid_cache_size; + + cairo_cache_t linear_pattern_cache; + cairo_cache_t radial_pattern_cache; + cairo_freelist_t pattern_cache_entry_freelist; + + cairo_list_t link; + cairo_list_t surfaces; + cairo_list_t pictures; + + cairo_bool_t has_font_options; + cairo_font_options_t font_options; +}; + +struct _cairo_xcb_connection { + cairo_device_t device; + + xcb_connection_t *xcb_connection; + + xcb_render_pictformat_t standard_formats[5]; + cairo_hash_table_t *xrender_formats; + cairo_hash_table_t *visual_to_xrender_format; + + unsigned int maximum_request_length; + unsigned int flags; + unsigned int original_flags; + + int force_precision; + + const xcb_setup_t *root; + const xcb_query_extension_reply_t *render; + const xcb_query_extension_reply_t *shm; + xcb_render_sub_pixel_t *subpixel_orders; + + cairo_mutex_t shm_mutex; + cairo_list_t shm_pools; + cairo_list_t shm_pending; + cairo_freepool_t shm_info_freelist; + + cairo_mutex_t screens_mutex; + cairo_list_t screens; + + cairo_list_t fonts; + + cairo_list_t link; +}; + +struct _cairo_xcb_resources { + cairo_bool_t xft_antialias; + int xft_lcdfilter; + cairo_bool_t xft_hinting; + int xft_hintstyle; + int xft_rgba; +}; + +enum { + CAIRO_XCB_HAS_RENDER = 0x0001, + CAIRO_XCB_RENDER_HAS_FILL_RECTANGLES = 0x0002, + CAIRO_XCB_RENDER_HAS_COMPOSITE = 0x0004, + CAIRO_XCB_RENDER_HAS_COMPOSITE_TRAPEZOIDS = 0x0008, + CAIRO_XCB_RENDER_HAS_COMPOSITE_GLYPHS = 0x0010, + CAIRO_XCB_RENDER_HAS_PICTURE_TRANSFORM = 0x0020, + CAIRO_XCB_RENDER_HAS_FILTERS = 0x0040, + CAIRO_XCB_RENDER_HAS_PDF_OPERATORS = 0x0080, + CAIRO_XCB_RENDER_HAS_EXTENDED_REPEAT = 0x0100, + CAIRO_XCB_RENDER_HAS_GRADIENTS = 0x0200, + CAIRO_XCB_RENDER_HAS_FILTER_GOOD = 0x0400, + CAIRO_XCB_RENDER_HAS_FILTER_BEST = 0x0800, + + CAIRO_XCB_HAS_SHM = 0x80000000, + + CAIRO_XCB_RENDER_MASK = CAIRO_XCB_HAS_RENDER | + CAIRO_XCB_RENDER_HAS_FILL_RECTANGLES | + CAIRO_XCB_RENDER_HAS_COMPOSITE | + CAIRO_XCB_RENDER_HAS_COMPOSITE_TRAPEZOIDS | + CAIRO_XCB_RENDER_HAS_COMPOSITE_GLYPHS | + CAIRO_XCB_RENDER_HAS_PICTURE_TRANSFORM | + CAIRO_XCB_RENDER_HAS_FILTERS | + CAIRO_XCB_RENDER_HAS_PDF_OPERATORS | + CAIRO_XCB_RENDER_HAS_EXTENDED_REPEAT | + CAIRO_XCB_RENDER_HAS_GRADIENTS | + CAIRO_XCB_RENDER_HAS_FILTER_GOOD | + CAIRO_XCB_RENDER_HAS_FILTER_BEST, + CAIRO_XCB_SHM_MASK = CAIRO_XCB_HAS_SHM +}; + +#define CAIRO_XCB_SHM_SMALL_IMAGE 8192 + +cairo_private extern const cairo_surface_backend_t _cairo_xcb_surface_backend; + +/** + * _cairo_surface_is_xcb: + * @surface: a #cairo_surface_t + * + * Checks if a surface is an #cairo_xcb_surface_t + * + * Return value: %TRUE if the surface is an xcb surface + **/ +static inline cairo_bool_t +_cairo_surface_is_xcb (const cairo_surface_t *surface) +{ + /* _cairo_surface_nil sets a NULL backend so be safe */ + return surface->backend && surface->backend->type == CAIRO_SURFACE_TYPE_XCB; +} + +cairo_private cairo_xcb_connection_t * +_cairo_xcb_connection_get (xcb_connection_t *connection); + +static inline cairo_xcb_connection_t * +_cairo_xcb_connection_reference (cairo_xcb_connection_t *connection) +{ + return (cairo_xcb_connection_t *) cairo_device_reference (&connection->device); +} + +cairo_private xcb_render_pictformat_t +_cairo_xcb_connection_get_xrender_format (cairo_xcb_connection_t *connection, + pixman_format_code_t pixman_format); + +cairo_private xcb_render_pictformat_t +_cairo_xcb_connection_get_xrender_format_for_visual (cairo_xcb_connection_t *connection, + const xcb_visualid_t visual); + +static inline cairo_status_t cairo_warn +_cairo_xcb_connection_acquire (cairo_xcb_connection_t *connection) +{ + return cairo_device_acquire (&connection->device); +} + +static inline void +_cairo_xcb_connection_release (cairo_xcb_connection_t *connection) +{ + cairo_device_release (&connection->device); +} + +static inline void +_cairo_xcb_connection_destroy (cairo_xcb_connection_t *connection) +{ + cairo_device_destroy (&connection->device); +} + +cairo_private cairo_int_status_t +_cairo_xcb_connection_allocate_shm_info (cairo_xcb_connection_t *display, + size_t size, + cairo_bool_t might_reuse, + cairo_xcb_shm_info_t **shm_info_out); + +cairo_private void +_cairo_xcb_shm_info_destroy (cairo_xcb_shm_info_t *shm_info); + +cairo_private void +_cairo_xcb_connection_shm_mem_pools_flush (cairo_xcb_connection_t *connection); + +cairo_private void +_cairo_xcb_connection_shm_mem_pools_fini (cairo_xcb_connection_t *connection); + +cairo_private void +_cairo_xcb_font_close (cairo_xcb_font_t *font); + +cairo_private cairo_xcb_screen_t * +_cairo_xcb_screen_get (xcb_connection_t *connection, + xcb_screen_t *screen); + +cairo_private void +_cairo_xcb_screen_finish (cairo_xcb_screen_t *screen); + +cairo_private xcb_gcontext_t +_cairo_xcb_screen_get_gc (cairo_xcb_screen_t *screen, + xcb_drawable_t drawable, + int depth); + +cairo_private void +_cairo_xcb_screen_put_gc (cairo_xcb_screen_t *screen, int depth, xcb_gcontext_t gc); + +cairo_private cairo_font_options_t * +_cairo_xcb_screen_get_font_options (cairo_xcb_screen_t *screen); + +cairo_private cairo_status_t +_cairo_xcb_screen_store_linear_picture (cairo_xcb_screen_t *screen, + const cairo_linear_pattern_t *linear, + cairo_surface_t *picture); + +cairo_private cairo_surface_t * +_cairo_xcb_screen_lookup_linear_picture (cairo_xcb_screen_t *screen, + const cairo_linear_pattern_t *linear); + +cairo_private cairo_status_t +_cairo_xcb_screen_store_radial_picture (cairo_xcb_screen_t *screen, + const cairo_radial_pattern_t *radial, + cairo_surface_t *picture); + +cairo_private cairo_surface_t * +_cairo_xcb_screen_lookup_radial_picture (cairo_xcb_screen_t *screen, + const cairo_radial_pattern_t *radial); + +cairo_private cairo_surface_t * +_cairo_xcb_surface_create_similar_image (void *abstrct_other, + cairo_format_t format, + int width, + int height); + +cairo_private cairo_surface_t * +_cairo_xcb_surface_create_similar (void *abstract_other, + cairo_content_t content, + int width, + int height); + +cairo_private cairo_surface_t * +_cairo_xcb_surface_create_internal (cairo_xcb_screen_t *screen, + xcb_drawable_t drawable, + cairo_bool_t owns_pixmap, + pixman_format_code_t pixman_format, + xcb_render_pictformat_t xrender_format, + int width, + int height); + +cairo_private_no_warn cairo_bool_t +_cairo_xcb_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *extents); + +cairo_private cairo_int_status_t +_cairo_xcb_render_compositor_paint (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents); + +cairo_private cairo_int_status_t +_cairo_xcb_render_compositor_mask (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents); + +cairo_private cairo_int_status_t +_cairo_xcb_render_compositor_stroke (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias); + +cairo_private cairo_int_status_t +_cairo_xcb_render_compositor_fill (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias); + +cairo_private cairo_int_status_t +_cairo_xcb_render_compositor_glyphs (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_bool_t overlap); +cairo_private void +_cairo_xcb_surface_scaled_font_fini (cairo_scaled_font_t *scaled_font); + +cairo_private void +_cairo_xcb_surface_scaled_glyph_fini (cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_font_t *scaled_font); + +cairo_private cairo_status_t +_cairo_xcb_surface_clear (cairo_xcb_surface_t *dst); + +cairo_private cairo_status_t +_cairo_xcb_surface_core_copy_boxes (cairo_xcb_surface_t *dst, + const cairo_pattern_t *src_pattern, + const cairo_rectangle_int_t *extents, + const cairo_boxes_t *boxes); + +cairo_private cairo_status_t +_cairo_xcb_surface_core_fill_boxes (cairo_xcb_surface_t *dst, + const cairo_color_t *color, + cairo_boxes_t *boxes); + +cairo_private xcb_pixmap_t +_cairo_xcb_connection_create_pixmap (cairo_xcb_connection_t *connection, + uint8_t depth, + xcb_drawable_t drawable, + uint16_t width, + uint16_t height); + +cairo_private xcb_gcontext_t +_cairo_xcb_connection_create_gc (cairo_xcb_connection_t *connection, + xcb_drawable_t drawable, + uint32_t value_mask, + uint32_t *values); + +cairo_private void +_cairo_xcb_connection_change_gc (cairo_xcb_connection_t *connection, + xcb_gcontext_t gc, + uint32_t value_mask, + uint32_t *values); + +cairo_private void +_cairo_xcb_connection_copy_area (cairo_xcb_connection_t *connection, + xcb_drawable_t src, + xcb_drawable_t dst, + xcb_gcontext_t gc, + int16_t src_x, + int16_t src_y, + int16_t dst_x, + int16_t dst_y, + uint16_t width, + uint16_t height); + +cairo_private void +_cairo_xcb_connection_put_image (cairo_xcb_connection_t *connection, + xcb_drawable_t dst, + xcb_gcontext_t gc, + uint16_t width, + uint16_t height, + int16_t dst_x, + int16_t dst_y, + uint8_t depth, + uint32_t length, + void *data); + +cairo_private void +_cairo_xcb_connection_put_subimage (cairo_xcb_connection_t *connection, + xcb_drawable_t dst, + xcb_gcontext_t gc, + int16_t src_x, + int16_t src_y, + uint16_t width, + uint16_t height, + uint16_t cpp, + int stride, + int16_t dst_x, + int16_t dst_y, + uint8_t depth, + void *data); + +cairo_private xcb_get_image_reply_t * +_cairo_xcb_connection_get_image (cairo_xcb_connection_t *connection, + xcb_drawable_t src, + int16_t src_x, + int16_t src_y, + uint16_t width, + uint16_t height); + +cairo_private void +_cairo_xcb_connection_poly_fill_rectangle (cairo_xcb_connection_t *connection, + xcb_drawable_t dst, + xcb_gcontext_t gc, + uint32_t num_rectangles, + xcb_rectangle_t *rectangles); + +cairo_private cairo_status_t +_cairo_xcb_shm_image_create (cairo_xcb_connection_t *connection, + pixman_format_code_t pixman_format, + int width, int height, + cairo_image_surface_t **image_out, + cairo_xcb_shm_info_t **shm_info_out); + +#if CAIRO_HAS_XCB_SHM_FUNCTIONS +cairo_private uint32_t +_cairo_xcb_connection_shm_attach (cairo_xcb_connection_t *connection, + uint32_t id, + cairo_bool_t readonly); + +cairo_private void +_cairo_xcb_connection_shm_put_image (cairo_xcb_connection_t *connection, + xcb_drawable_t dst, + xcb_gcontext_t gc, + uint16_t total_width, + uint16_t total_height, + int16_t src_x, + int16_t src_y, + uint16_t width, + uint16_t height, + int16_t dst_x, + int16_t dst_y, + uint8_t depth, + uint32_t shm, + uint32_t offset); + +cairo_private cairo_status_t +_cairo_xcb_connection_shm_get_image (cairo_xcb_connection_t *connection, + xcb_drawable_t src, + int16_t src_x, + int16_t src_y, + uint16_t width, + uint16_t height, + uint32_t shmseg, + uint32_t offset); + +cairo_private void +_cairo_xcb_connection_shm_detach (cairo_xcb_connection_t *connection, + uint32_t segment); +#else +static inline void +_cairo_xcb_connection_shm_put_image (cairo_xcb_connection_t *connection, + xcb_drawable_t dst, + xcb_gcontext_t gc, + uint16_t total_width, + uint16_t total_height, + int16_t src_x, + int16_t src_y, + uint16_t width, + uint16_t height, + int16_t dst_x, + int16_t dst_y, + uint8_t depth, + uint32_t shm, + uint32_t offset) +{ + ASSERT_NOT_REACHED; +} +#endif + +cairo_private void +_cairo_xcb_connection_render_create_picture (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + xcb_drawable_t drawable, + xcb_render_pictformat_t format, + uint32_t value_mask, + uint32_t *value_list); + +cairo_private void +_cairo_xcb_connection_render_change_picture (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + uint32_t value_mask, + uint32_t *value_list); + +cairo_private void +_cairo_xcb_connection_render_set_picture_clip_rectangles (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + int16_t clip_x_origin, + int16_t clip_y_origin, + uint32_t rectangles_len, + xcb_rectangle_t *rectangles); + +cairo_private void +_cairo_xcb_connection_render_free_picture (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture); + +cairo_private void +_cairo_xcb_connection_render_composite (cairo_xcb_connection_t *connection, + uint8_t op, + xcb_render_picture_t src, + xcb_render_picture_t mask, + xcb_render_picture_t dst, + int16_t src_x, + int16_t src_y, + int16_t mask_x, + int16_t mask_y, + int16_t dst_x, + int16_t dst_y, + uint16_t width, + uint16_t height); + +cairo_private void +_cairo_xcb_connection_render_trapezoids (cairo_xcb_connection_t *connection, + uint8_t op, + xcb_render_picture_t src, + xcb_render_picture_t dst, + xcb_render_pictformat_t mask_format, + int16_t src_x, + int16_t src_y, + uint32_t traps_len, + xcb_render_trapezoid_t *traps); + +cairo_private void +_cairo_xcb_connection_render_create_glyph_set (cairo_xcb_connection_t *connection, + xcb_render_glyphset_t id, + xcb_render_pictformat_t format); + +cairo_private void +_cairo_xcb_connection_render_free_glyph_set (cairo_xcb_connection_t *connection, + xcb_render_glyphset_t glyphset); + +cairo_private void +_cairo_xcb_connection_render_add_glyphs (cairo_xcb_connection_t *connection, + xcb_render_glyphset_t glyphset, + uint32_t num_glyphs, + uint32_t *glyphs_id, + xcb_render_glyphinfo_t *glyphs, + uint32_t data_len, + uint8_t *data); + +cairo_private void +_cairo_xcb_connection_render_free_glyphs (cairo_xcb_connection_t *connection, + xcb_render_glyphset_t glyphset, + uint32_t num_glyphs, + xcb_render_glyph_t *glyphs); + +cairo_private void +_cairo_xcb_connection_render_composite_glyphs_8 (cairo_xcb_connection_t *connection, + uint8_t op, + xcb_render_picture_t src, + xcb_render_picture_t dst, + xcb_render_pictformat_t mask_format, + xcb_render_glyphset_t glyphset, + int16_t src_x, + int16_t src_y, + uint32_t glyphcmds_len, + uint8_t *glyphcmds); + +cairo_private void +_cairo_xcb_connection_render_composite_glyphs_16 (cairo_xcb_connection_t *connection, + uint8_t op, + xcb_render_picture_t src, + xcb_render_picture_t dst, + xcb_render_pictformat_t mask_format, + xcb_render_glyphset_t glyphset, + int16_t src_x, + int16_t src_y, + uint32_t glyphcmds_len, + uint8_t *glyphcmds); + +cairo_private void +_cairo_xcb_connection_render_composite_glyphs_32 (cairo_xcb_connection_t *connection, + uint8_t op, + xcb_render_picture_t src, + xcb_render_picture_t dst, + xcb_render_pictformat_t mask_format, + xcb_render_glyphset_t glyphset, + int16_t src_x, + int16_t src_y, + uint32_t glyphcmds_len, + uint8_t *glyphcmds); + +cairo_private void +_cairo_xcb_connection_render_fill_rectangles (cairo_xcb_connection_t *connection, + uint8_t op, + xcb_render_picture_t dst, + xcb_render_color_t color, + uint32_t num_rects, + xcb_rectangle_t *rects); + +cairo_private void +_cairo_xcb_connection_render_set_picture_transform (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + xcb_render_transform_t *transform); + +cairo_private void +_cairo_xcb_connection_render_set_picture_filter (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + uint16_t filter_len, + char *filter); + +cairo_private void +_cairo_xcb_connection_render_create_solid_fill (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + xcb_render_color_t color); + +cairo_private void +_cairo_xcb_connection_render_create_linear_gradient (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + xcb_render_pointfix_t p1, + xcb_render_pointfix_t p2, + uint32_t num_stops, + xcb_render_fixed_t *stops, + xcb_render_color_t *colors); + +cairo_private void +_cairo_xcb_connection_render_create_radial_gradient (cairo_xcb_connection_t *connection, + xcb_render_picture_t picture, + xcb_render_pointfix_t inner, + xcb_render_pointfix_t outer, + xcb_render_fixed_t inner_radius, + xcb_render_fixed_t outer_radius, + uint32_t num_stops, + xcb_render_fixed_t *stops, + xcb_render_color_t *colors); + +cairo_private void +_cairo_xcb_connection_render_create_conical_gradient (cairo_xcb_connection_t *c, + xcb_render_picture_t picture, + xcb_render_pointfix_t center, + xcb_render_fixed_t angle, + uint32_t num_stops, + xcb_render_fixed_t *stops, + xcb_render_color_t *colors); + +cairo_private void +_cairo_xcb_resources_get (cairo_xcb_screen_t *screen, + cairo_xcb_resources_t *resources); + +#endif /* CAIRO_XCB_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xcb-resources.c b/local/recipes/libs/cairo/source/src/cairo-xcb-resources.c new file mode 100644 index 0000000000..1877758c25 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xcb-resources.c @@ -0,0 +1,281 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2014 Lukas Lalinsky + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * Authors: + * Lukas Lalinsky + * + * Partially on code from xftdpy.c + * + * Copyright © 2000 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Keith Packard not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Keith Packard makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +#include "cairoint.h" + +#include "cairo-xcb-private.h" + +#include "cairo-fontconfig-private.h" + +static void +parse_boolean (const char *v, cairo_bool_t *out) +{ + char c0, c1; + + c0 = *v; + if (c0 == 't' || c0 == 'T' || c0 == 'y' || c0 == 'Y' || c0 == '1') + *out = TRUE; + if (c0 == 'f' || c0 == 'F' || c0 == 'n' || c0 == 'N' || c0 == '0') + *out = FALSE; + if (c0 == 'o') { + c1 = v[1]; + if (c1 == 'n' || c1 == 'N') + *out = TRUE; + if (c1 == 'f' || c1 == 'F') + *out = FALSE; + } +} + +static void +parse_integer (const char *v, int *out) +{ + char *e; + int value; + +#if CAIRO_HAS_FC_FONT + if (FcNameConstant ((FcChar8 *) v, out)) + return; +#endif + + value = strtol (v, &e, 0); + if (e != v) + *out = value; +} + +static char * +skip_spaces(char *str) +{ + while (*str == ' ' || *str == '\t' || *str == '\n') + str++; + return str; +} + +struct resource_parser { + int buffer_size; + int bytes_in_buffer; + char* buffer; + cairo_xcb_resources_t *resources; +}; + +static cairo_bool_t +resource_parse_line (char *name, cairo_xcb_resources_t *resources) +{ + char *value; + + value = strchr (name, ':'); + if (value == NULL) + return FALSE; + + *value++ = 0; + + name = skip_spaces (name); + value = skip_spaces (value); + + if (strcmp (name, "Xft.antialias") == 0) + parse_boolean (value, &(resources->xft_antialias)); + else if (strcmp (name, "Xft.lcdfilter") == 0) + parse_integer (value, &(resources->xft_lcdfilter)); + else if (strcmp (name, "Xft.rgba") == 0) + parse_integer (value, &(resources->xft_rgba)); + else if (strcmp (name, "Xft.hinting") == 0) + parse_boolean (value, &(resources->xft_hinting)); + else if (strcmp (name, "Xft.hintstyle") == 0) + parse_integer (value, &(resources->xft_hintstyle)); + + return TRUE; +} + +static int +resource_parse_lines (struct resource_parser *parser) +{ + char *line, *newline; + + line = parser->buffer; + while (1) { + newline = strchr (line, '\n'); + if (newline == NULL) + break; + + *newline++ = 0; + + if (! resource_parse_line (line, parser->resources)) + break; + + line = newline; + } + + return line - parser->buffer; +} + +static void +resource_parser_init (struct resource_parser *parser, cairo_xcb_resources_t *resources) +{ + parser->buffer_size = 0; + parser->bytes_in_buffer = 0; + parser->buffer = NULL; + parser->resources = resources; +} + +static cairo_bool_t +resource_parser_update (struct resource_parser *parser, const char *data, int length) +{ + int bytes_parsed; + + if (parser->bytes_in_buffer + length + 1 > parser->buffer_size) { + parser->buffer_size = parser->bytes_in_buffer + length + 1; + parser->buffer = realloc(parser->buffer, parser->buffer_size); + if (! parser->buffer) { + parser->buffer_size = 0; + parser->bytes_in_buffer = 0; + return FALSE; + } + } + + memmove (parser->buffer + parser->bytes_in_buffer, data, length); + parser->bytes_in_buffer += length; + parser->buffer[parser->bytes_in_buffer] = 0; + + bytes_parsed = resource_parse_lines (parser); + + if (parser->bytes_in_buffer > bytes_parsed) { + memmove (parser->buffer, parser->buffer + bytes_parsed, parser->bytes_in_buffer - bytes_parsed); + parser->bytes_in_buffer -= bytes_parsed; + } else { + parser->bytes_in_buffer = 0; + } + + return TRUE; +} + +static void +resource_parser_done (struct resource_parser *parser) +{ + if (parser->bytes_in_buffer > 0) { + parser->buffer[parser->bytes_in_buffer] = 0; + resource_parse_line (parser->buffer, parser->resources); + } + + free (parser->buffer); +} + +static void +get_resources(xcb_connection_t *connection, xcb_screen_t *screen, cairo_xcb_resources_t *resources) +{ + xcb_get_property_cookie_t cookie; + xcb_get_property_reply_t *reply; + struct resource_parser parser; + int offset; + cairo_bool_t has_more_data; + + resources->xft_antialias = TRUE; + resources->xft_lcdfilter = -1; + resources->xft_hinting = TRUE; + resources->xft_hintstyle = FC_HINT_FULL; + resources->xft_rgba = FC_RGBA_UNKNOWN; + + resource_parser_init (&parser, resources); + + offset = 0; + has_more_data = FALSE; + do { + cookie = xcb_get_property (connection, 0, screen->root, XCB_ATOM_RESOURCE_MANAGER, XCB_ATOM_STRING, offset, 1024); + reply = xcb_get_property_reply (connection, cookie, NULL); + + if (reply) { + if (reply->format == 8 && reply->type == XCB_ATOM_STRING) { + char *value = (char *) xcb_get_property_value (reply); + int length = xcb_get_property_value_length (reply); + + offset += length / 4; /* X needs the offset in 'long' units */ + has_more_data = reply->bytes_after > 0; + + if (! resource_parser_update (&parser, value, length)) + has_more_data = FALSE; /* early exit on error */ + } + + free (reply); + } + } while (has_more_data); + + resource_parser_done (&parser); +} + +void +_cairo_xcb_resources_get (cairo_xcb_screen_t *screen, cairo_xcb_resources_t *resources) +{ + get_resources (screen->connection->xcb_connection, screen->xcb_screen, resources); + + if (resources->xft_rgba == FC_RGBA_UNKNOWN) { + switch (screen->subpixel_order) { + case XCB_RENDER_SUB_PIXEL_UNKNOWN: + resources->xft_rgba = FC_RGBA_UNKNOWN; + break; + case XCB_RENDER_SUB_PIXEL_HORIZONTAL_RGB: + resources->xft_rgba = FC_RGBA_RGB; + break; + case XCB_RENDER_SUB_PIXEL_HORIZONTAL_BGR: + resources->xft_rgba = FC_RGBA_BGR; + break; + case XCB_RENDER_SUB_PIXEL_VERTICAL_RGB: + resources->xft_rgba = FC_RGBA_VRGB; + break; + case XCB_RENDER_SUB_PIXEL_VERTICAL_BGR: + resources->xft_rgba = FC_RGBA_VBGR; + break; + case XCB_RENDER_SUB_PIXEL_NONE: + resources->xft_rgba = FC_RGBA_NONE; + break; + } + } +} diff --git a/local/recipes/libs/cairo/source/src/cairo-xcb-screen.c b/local/recipes/libs/cairo/source/src/cairo-xcb-screen.c new file mode 100644 index 0000000000..0ed880d660 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xcb-screen.c @@ -0,0 +1,494 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2008 Chris Wilson + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * Authors: + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-xcb-private.h" +#include "cairo-list-inline.h" + +#include "cairo-fontconfig-private.h" + +static void +_cairo_xcb_init_screen_font_options (cairo_xcb_screen_t *screen) +{ + cairo_xcb_resources_t res; + cairo_antialias_t antialias; + cairo_subpixel_order_t subpixel_order; + cairo_lcd_filter_t lcd_filter; + cairo_hint_style_t hint_style; + + _cairo_xcb_resources_get (screen, &res); + + /* the rest of the code in this function is copied from + _cairo_xlib_init_screen_font_options in cairo-xlib-screen.c */ + + if (res.xft_hinting) { + switch (res.xft_hintstyle) { + case FC_HINT_NONE: + hint_style = CAIRO_HINT_STYLE_NONE; + break; + case FC_HINT_SLIGHT: + hint_style = CAIRO_HINT_STYLE_SLIGHT; + break; + case FC_HINT_MEDIUM: + hint_style = CAIRO_HINT_STYLE_MEDIUM; + break; + case FC_HINT_FULL: + hint_style = CAIRO_HINT_STYLE_FULL; + break; + default: + hint_style = CAIRO_HINT_STYLE_DEFAULT; + } + } else { + hint_style = CAIRO_HINT_STYLE_NONE; + } + + switch (res.xft_rgba) { + case FC_RGBA_RGB: + subpixel_order = CAIRO_SUBPIXEL_ORDER_RGB; + break; + case FC_RGBA_BGR: + subpixel_order = CAIRO_SUBPIXEL_ORDER_BGR; + break; + case FC_RGBA_VRGB: + subpixel_order = CAIRO_SUBPIXEL_ORDER_VRGB; + break; + case FC_RGBA_VBGR: + subpixel_order = CAIRO_SUBPIXEL_ORDER_VBGR; + break; + case FC_RGBA_UNKNOWN: + case FC_RGBA_NONE: + default: + subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT; + } + + switch (res.xft_lcdfilter) { + case FC_LCD_NONE: + lcd_filter = CAIRO_LCD_FILTER_NONE; + break; + case FC_LCD_DEFAULT: + lcd_filter = CAIRO_LCD_FILTER_FIR5; + break; + case FC_LCD_LIGHT: + lcd_filter = CAIRO_LCD_FILTER_FIR3; + break; + case FC_LCD_LEGACY: + lcd_filter = CAIRO_LCD_FILTER_INTRA_PIXEL; + break; + default: + lcd_filter = CAIRO_LCD_FILTER_DEFAULT; + break; + } + + if (res.xft_antialias) { + if (subpixel_order == CAIRO_SUBPIXEL_ORDER_DEFAULT) + antialias = CAIRO_ANTIALIAS_GRAY; + else + antialias = CAIRO_ANTIALIAS_SUBPIXEL; + } else { + antialias = CAIRO_ANTIALIAS_NONE; + } + + cairo_font_options_set_hint_style (&screen->font_options, hint_style); + cairo_font_options_set_antialias (&screen->font_options, antialias); + cairo_font_options_set_subpixel_order (&screen->font_options, subpixel_order); + _cairo_font_options_set_lcd_filter (&screen->font_options, lcd_filter); + cairo_font_options_set_hint_metrics (&screen->font_options, CAIRO_HINT_METRICS_ON); +} + +struct pattern_cache_entry { + cairo_cache_entry_t key; + cairo_xcb_screen_t *screen; + cairo_pattern_union_t pattern; + cairo_surface_t *picture; +}; + +void +_cairo_xcb_screen_finish (cairo_xcb_screen_t *screen) +{ + int i; + + CAIRO_MUTEX_LOCK (screen->connection->screens_mutex); + cairo_list_del (&screen->link); + CAIRO_MUTEX_UNLOCK (screen->connection->screens_mutex); + + while (! cairo_list_is_empty (&screen->surfaces)) { + cairo_surface_t *surface; + + surface = &cairo_list_first_entry (&screen->surfaces, + cairo_xcb_surface_t, + link)->base; + + cairo_surface_finish (surface); + } + + while (! cairo_list_is_empty (&screen->pictures)) { + cairo_surface_t *surface; + + surface = &cairo_list_first_entry (&screen->pictures, + cairo_xcb_picture_t, + link)->base; + + cairo_surface_finish (surface); + } + + for (i = 0; i < screen->solid_cache_size; i++) + cairo_surface_destroy (screen->solid_cache[i].picture); + + for (i = 0; i < ARRAY_LENGTH (screen->stock_colors); i++) + cairo_surface_destroy (screen->stock_colors[i]); + + for (i = 0; i < ARRAY_LENGTH (screen->gc); i++) { + if (screen->gc_depths[i] != 0) + xcb_free_gc (screen->connection->xcb_connection, screen->gc[i]); + } + + _cairo_cache_fini (&screen->linear_pattern_cache); + _cairo_cache_fini (&screen->radial_pattern_cache); + _cairo_freelist_fini (&screen->pattern_cache_entry_freelist); + + free (screen); +} + +static cairo_bool_t +_linear_pattern_cache_entry_equal (const void *A, const void *B) +{ + const struct pattern_cache_entry *a = A, *b = B; + + return _cairo_linear_pattern_equal (&a->pattern.gradient.linear, + &b->pattern.gradient.linear); +} + +static cairo_bool_t +_radial_pattern_cache_entry_equal (const void *A, const void *B) +{ + const struct pattern_cache_entry *a = A, *b = B; + + return _cairo_radial_pattern_equal (&a->pattern.gradient.radial, + &b->pattern.gradient.radial); +} + +static void +_pattern_cache_entry_destroy (void *closure) +{ + struct pattern_cache_entry *entry = closure; + + _cairo_pattern_fini (&entry->pattern.base); + cairo_surface_destroy (entry->picture); + _cairo_freelist_free (&entry->screen->pattern_cache_entry_freelist, entry); +} + +static int _get_screen_index(cairo_xcb_connection_t *xcb_connection, + xcb_screen_t *xcb_screen) +{ + int idx = 0; + xcb_screen_iterator_t iter = xcb_setup_roots_iterator(xcb_connection->root); + for (; iter.rem; xcb_screen_next(&iter), idx++) + if (iter.data->root == xcb_screen->root) + return idx; + + ASSERT_NOT_REACHED; +} + +cairo_xcb_screen_t * +_cairo_xcb_screen_get (xcb_connection_t *xcb_connection, + xcb_screen_t *xcb_screen) +{ + cairo_xcb_connection_t *connection; + cairo_xcb_screen_t *screen; + cairo_status_t status; + int screen_idx; + int i; + + connection = _cairo_xcb_connection_get (xcb_connection); + if (unlikely (connection == NULL)) + return NULL; + + CAIRO_MUTEX_LOCK (connection->screens_mutex); + + cairo_list_foreach_entry (screen, + cairo_xcb_screen_t, + &connection->screens, + link) + { + if (screen->xcb_screen == xcb_screen) { + /* Maintain list in MRU order */ + if (&screen->link != connection->screens.next) + cairo_list_move (&screen->link, &connection->screens); + + goto unlock; + } + } + + screen = _cairo_calloc (sizeof (cairo_xcb_screen_t)); + if (unlikely (screen == NULL)) + goto unlock; + + screen_idx = _get_screen_index(connection, xcb_screen); + + screen->connection = connection; + screen->xcb_screen = xcb_screen; + screen->has_font_options = FALSE; + screen->subpixel_order = connection->subpixel_orders[screen_idx]; + + _cairo_freelist_init (&screen->pattern_cache_entry_freelist, + sizeof (struct pattern_cache_entry)); + cairo_list_init (&screen->link); + cairo_list_init (&screen->surfaces); + cairo_list_init (&screen->pictures); + + memset (screen->gc_depths, 0, sizeof (screen->gc_depths)); + memset (screen->gc, 0, sizeof (screen->gc)); + + screen->solid_cache_size = 0; + for (i = 0; i < ARRAY_LENGTH (screen->stock_colors); i++) + screen->stock_colors[i] = NULL; + + status = _cairo_cache_init (&screen->linear_pattern_cache, + _linear_pattern_cache_entry_equal, + NULL, + _pattern_cache_entry_destroy, + 16); + if (unlikely (status)) + goto error_screen; + + status = _cairo_cache_init (&screen->radial_pattern_cache, + _radial_pattern_cache_entry_equal, + NULL, + _pattern_cache_entry_destroy, + 4); + if (unlikely (status)) + goto error_linear; + + cairo_list_add (&screen->link, &connection->screens); + +unlock: + CAIRO_MUTEX_UNLOCK (connection->screens_mutex); + + return screen; + +error_linear: + _cairo_cache_fini (&screen->linear_pattern_cache); +error_screen: + CAIRO_MUTEX_UNLOCK (connection->screens_mutex); + free (screen); + + return NULL; +} + +static xcb_gcontext_t +_create_gc (cairo_xcb_screen_t *screen, + xcb_drawable_t drawable) +{ + uint32_t values[] = { 0 }; + + return _cairo_xcb_connection_create_gc (screen->connection, drawable, + XCB_GC_GRAPHICS_EXPOSURES, + values); +} + +xcb_gcontext_t +_cairo_xcb_screen_get_gc (cairo_xcb_screen_t *screen, + xcb_drawable_t drawable, + int depth) +{ + int i; + + assert (CAIRO_MUTEX_IS_LOCKED (screen->connection->device.mutex)); + + for (i = 0; i < ARRAY_LENGTH (screen->gc); i++) { + if (screen->gc_depths[i] == depth) { + screen->gc_depths[i] = 0; + return screen->gc[i]; + } + } + + return _create_gc (screen, drawable); +} + +void +_cairo_xcb_screen_put_gc (cairo_xcb_screen_t *screen, int depth, xcb_gcontext_t gc) +{ + int i; + + assert (CAIRO_MUTEX_IS_LOCKED (screen->connection->device.mutex)); + + for (i = 0; i < ARRAY_LENGTH (screen->gc); i++) { + if (screen->gc_depths[i] == 0) + break; + } + + if (i == ARRAY_LENGTH (screen->gc)) { + /* perform random substitution to ensure fair caching over depths */ + i = rand () % ARRAY_LENGTH (screen->gc); + xcb_free_gc (screen->connection->xcb_connection, screen->gc[i]); + } + + screen->gc[i] = gc; + screen->gc_depths[i] = depth; +} + +cairo_status_t +_cairo_xcb_screen_store_linear_picture (cairo_xcb_screen_t *screen, + const cairo_linear_pattern_t *linear, + cairo_surface_t *picture) +{ + struct pattern_cache_entry *entry; + cairo_status_t status; + + assert (CAIRO_MUTEX_IS_LOCKED (screen->connection->device.mutex)); + + entry = _cairo_freelist_alloc (&screen->pattern_cache_entry_freelist); + if (unlikely (entry == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + entry->key.hash = _cairo_linear_pattern_hash (_CAIRO_HASH_INIT_VALUE, linear); + entry->key.size = 1; + + status = _cairo_pattern_init_copy (&entry->pattern.base, &linear->base.base); + if (unlikely (status)) { + _cairo_freelist_free (&screen->pattern_cache_entry_freelist, entry); + return status; + } + + entry->picture = cairo_surface_reference (picture); + entry->screen = screen; + + status = _cairo_cache_insert (&screen->linear_pattern_cache, + &entry->key); + if (unlikely (status)) { + cairo_surface_destroy (picture); + _cairo_freelist_free (&screen->pattern_cache_entry_freelist, entry); + return status; + } + + return CAIRO_STATUS_SUCCESS; +} + +cairo_surface_t * +_cairo_xcb_screen_lookup_linear_picture (cairo_xcb_screen_t *screen, + const cairo_linear_pattern_t *linear) +{ + cairo_surface_t *picture = NULL; + struct pattern_cache_entry tmpl; + struct pattern_cache_entry *entry; + + assert (CAIRO_MUTEX_IS_LOCKED (screen->connection->device.mutex)); + + tmpl.key.hash = _cairo_linear_pattern_hash (_CAIRO_HASH_INIT_VALUE, linear); + _cairo_pattern_init_static_copy (&tmpl.pattern.base, &linear->base.base); + + entry = _cairo_cache_lookup (&screen->linear_pattern_cache, &tmpl.key); + if (entry != NULL) + picture = cairo_surface_reference (entry->picture); + + return picture; +} + +cairo_status_t +_cairo_xcb_screen_store_radial_picture (cairo_xcb_screen_t *screen, + const cairo_radial_pattern_t *radial, + cairo_surface_t *picture) +{ + struct pattern_cache_entry *entry; + cairo_status_t status; + + assert (CAIRO_MUTEX_IS_LOCKED (screen->connection->device.mutex)); + + entry = _cairo_freelist_alloc (&screen->pattern_cache_entry_freelist); + if (unlikely (entry == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + entry->key.hash = _cairo_radial_pattern_hash (_CAIRO_HASH_INIT_VALUE, radial); + entry->key.size = 1; + + status = _cairo_pattern_init_copy (&entry->pattern.base, &radial->base.base); + if (unlikely (status)) { + _cairo_freelist_free (&screen->pattern_cache_entry_freelist, entry); + return status; + } + + entry->picture = cairo_surface_reference (picture); + entry->screen = screen; + + status = _cairo_cache_insert (&screen->radial_pattern_cache, &entry->key); + if (unlikely (status)) { + cairo_surface_destroy (picture); + _cairo_freelist_free (&screen->pattern_cache_entry_freelist, entry); + return status; + } + + return CAIRO_STATUS_SUCCESS; +} + +cairo_surface_t * +_cairo_xcb_screen_lookup_radial_picture (cairo_xcb_screen_t *screen, + const cairo_radial_pattern_t *radial) +{ + cairo_surface_t *picture = NULL; + struct pattern_cache_entry tmpl; + struct pattern_cache_entry *entry; + + assert (CAIRO_MUTEX_IS_LOCKED (screen->connection->device.mutex)); + + tmpl.key.hash = _cairo_radial_pattern_hash (_CAIRO_HASH_INIT_VALUE, radial); + _cairo_pattern_init_static_copy (&tmpl.pattern.base, &radial->base.base); + + entry = _cairo_cache_lookup (&screen->radial_pattern_cache, &tmpl.key); + if (entry != NULL) + picture = cairo_surface_reference (entry->picture); + + return picture; +} + +cairo_font_options_t * +_cairo_xcb_screen_get_font_options (cairo_xcb_screen_t *screen) +{ + if (! screen->has_font_options) { + _cairo_font_options_init_default (&screen->font_options); + _cairo_font_options_set_round_glyph_positions (&screen->font_options, CAIRO_ROUND_GLYPH_POS_ON); + + /* XXX: This is disabled because something seems to be merging + font options incorrectly for xcb. This effectively reverts + the changes brought in git e691d242, and restores ~150 tests + to resume passing. See mailing list archives for Sep 17, + 2014 for more discussion. */ + if (0 && ! _cairo_xcb_connection_acquire (screen->connection)) { + _cairo_xcb_init_screen_font_options (screen); + _cairo_xcb_connection_release (screen->connection); + } + + screen->has_font_options = TRUE; + } + + return &screen->font_options; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-xcb-shm.c b/local/recipes/libs/cairo/source/src/cairo-xcb-shm.c new file mode 100644 index 0000000000..4037eaa720 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xcb-shm.c @@ -0,0 +1,346 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2007 Chris Wilson + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributors(s): + * Chris Wilson + */ + +#include "cairoint.h" + +/** + * CAIRO_HAS_XCB_SHM_FUNCTIONS: + * + * Defined if Cairo has SHM functions for XCB. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.10 + **/ + +#if CAIRO_HAS_XCB_SHM_FUNCTIONS + +#include "cairo-xcb-private.h" +#include "cairo-list-inline.h" +#include "cairo-mempool-private.h" + +#include +#include +#include +#include + +#define CAIRO_MAX_SHM_MEMORY (16*1024*1024) + +/* a simple buddy allocator for memory pools + * XXX fragmentation? use Doug Lea's malloc? + */ + +typedef struct _cairo_xcb_shm_mem_block cairo_xcb_shm_mem_block_t; + +typedef enum { + PENDING_WAIT, + PENDING_POLL +} shm_wait_type_t; + +struct _cairo_xcb_shm_mem_pool { + int shmid; + uint32_t shmseg; + void *shm; + + cairo_mempool_t mem; + + cairo_list_t link; +}; + +static void +_cairo_xcb_shm_mem_pool_destroy (cairo_xcb_shm_mem_pool_t *pool) +{ + cairo_list_del (&pool->link); + + shmdt (pool->shm); + _cairo_mempool_fini (&pool->mem); + + free (pool); +} + +static void +_cairo_xcb_shm_info_finalize (cairo_xcb_shm_info_t *shm_info) +{ + cairo_xcb_connection_t *connection = shm_info->connection; + + assert (CAIRO_MUTEX_IS_LOCKED (connection->shm_mutex)); + + _cairo_mempool_free (&shm_info->pool->mem, shm_info->mem); + _cairo_freepool_free (&connection->shm_info_freelist, shm_info); + + /* scan for old, unused pools - hold at least one in reserve */ + if (! cairo_list_is_singular (&connection->shm_pools)) + { + cairo_xcb_shm_mem_pool_t *pool, *next; + cairo_list_t head; + + cairo_list_init (&head); + cairo_list_move (connection->shm_pools.next, &head); + + cairo_list_foreach_entry_safe (pool, next, cairo_xcb_shm_mem_pool_t, + &connection->shm_pools, link) + { + if (pool->mem.free_bytes == pool->mem.max_bytes) { + _cairo_xcb_connection_shm_detach (connection, pool->shmseg); + _cairo_xcb_shm_mem_pool_destroy (pool); + } + } + + cairo_list_move (head.next, &connection->shm_pools); + } +} + +static void +_cairo_xcb_shm_process_pending (cairo_xcb_connection_t *connection, shm_wait_type_t wait) +{ + cairo_xcb_shm_info_t *info, *next; + xcb_get_input_focus_reply_t *reply; + + assert (CAIRO_MUTEX_IS_LOCKED (connection->shm_mutex)); + cairo_list_foreach_entry_safe (info, next, cairo_xcb_shm_info_t, + &connection->shm_pending, pending) + { + switch (wait) { + case PENDING_WAIT: + reply = xcb_wait_for_reply (connection->xcb_connection, + info->sync.sequence, NULL); + break; + case PENDING_POLL: + if (! xcb_poll_for_reply (connection->xcb_connection, + info->sync.sequence, + (void **) &reply, NULL)) + /* We cannot be sure the server finished with this image yet, so + * try again later. All other shm info are guaranteed to have a + * larger sequence number and thus don't have to be checked. */ + return; + break; + default: + /* silence Clang static analyzer warning */ + ASSERT_NOT_REACHED; + reply = NULL; + } + + free (reply); + cairo_list_del (&info->pending); + _cairo_xcb_shm_info_finalize (info); + } +} + +cairo_int_status_t +_cairo_xcb_connection_allocate_shm_info (cairo_xcb_connection_t *connection, + size_t size, + cairo_bool_t might_reuse, + cairo_xcb_shm_info_t **shm_info_out) +{ + cairo_xcb_shm_info_t *shm_info; + cairo_xcb_shm_mem_pool_t *pool, *next; + size_t bytes, maxbits = 16, minbits = 8; + size_t shm_allocated = 0; + void *mem = NULL; + cairo_status_t status; + + assert (connection->flags & CAIRO_XCB_HAS_SHM); + + CAIRO_MUTEX_LOCK (connection->shm_mutex); + _cairo_xcb_shm_process_pending (connection, PENDING_POLL); + + if (might_reuse) { + cairo_list_foreach_entry (shm_info, cairo_xcb_shm_info_t, + &connection->shm_pending, pending) { + if (shm_info->size >= size) { + cairo_list_del (&shm_info->pending); + CAIRO_MUTEX_UNLOCK (connection->shm_mutex); + + xcb_discard_reply (connection->xcb_connection, shm_info->sync.sequence); + shm_info->sync.sequence = XCB_NONE; + + *shm_info_out = shm_info; + return CAIRO_STATUS_SUCCESS; + } + } + } + + cairo_list_foreach_entry_safe (pool, next, cairo_xcb_shm_mem_pool_t, + &connection->shm_pools, link) + { + if (pool->mem.free_bytes > size) { + mem = _cairo_mempool_alloc (&pool->mem, size); + if (mem != NULL) { + /* keep the active pools towards the front */ + cairo_list_move (&pool->link, &connection->shm_pools); + goto allocate_shm_info; + } + } + /* scan for old, unused pools */ + if (pool->mem.free_bytes == pool->mem.max_bytes) { + _cairo_xcb_connection_shm_detach (connection, + pool->shmseg); + _cairo_xcb_shm_mem_pool_destroy (pool); + } else { + shm_allocated += pool->mem.max_bytes; + } + } + + if (unlikely (shm_allocated >= CAIRO_MAX_SHM_MEMORY)) { + CAIRO_MUTEX_UNLOCK (connection->shm_mutex); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + pool = _cairo_calloc (sizeof (cairo_xcb_shm_mem_pool_t)); + if (unlikely (pool == NULL)) { + CAIRO_MUTEX_UNLOCK (connection->shm_mutex); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + bytes = 1 << maxbits; + while (bytes <= size) + bytes <<= 1, maxbits++; + bytes <<= 3; + + do { + pool->shmid = shmget (IPC_PRIVATE, bytes, IPC_CREAT | 0600); + if (pool->shmid != -1) + break; + + /* If the allocation failed because we asked for too much memory, we try + * again with a smaller request, as long as our allocation still fits. */ + bytes >>= 1; + if (errno != EINVAL || bytes < size) + break; + } while (TRUE); + if (pool->shmid == -1) { + int err = errno; + if (! (err == EINVAL || err == ENOMEM)) + connection->flags &= ~CAIRO_XCB_HAS_SHM; + free (pool); + CAIRO_MUTEX_UNLOCK (connection->shm_mutex); + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + pool->shm = shmat (pool->shmid, NULL, 0); + if (unlikely (pool->shm == (char *) -1)) { + shmctl (pool->shmid, IPC_RMID, NULL); + free (pool); + CAIRO_MUTEX_UNLOCK (connection->shm_mutex); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + status = _cairo_mempool_init (&pool->mem, pool->shm, bytes, + minbits, maxbits - minbits + 1); + if (unlikely (status)) { + shmdt (pool->shm); + free (pool); + CAIRO_MUTEX_UNLOCK (connection->shm_mutex); + return status; + } + + pool->shmseg = _cairo_xcb_connection_shm_attach (connection, pool->shmid, FALSE); + shmctl (pool->shmid, IPC_RMID, NULL); + + cairo_list_add (&pool->link, &connection->shm_pools); + mem = _cairo_mempool_alloc (&pool->mem, size); + + allocate_shm_info: + shm_info = _cairo_freepool_alloc (&connection->shm_info_freelist); + if (unlikely (shm_info == NULL)) { + _cairo_mempool_free (&pool->mem, mem); + CAIRO_MUTEX_UNLOCK (connection->shm_mutex); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + shm_info->connection = connection; + shm_info->pool = pool; + shm_info->shm = pool->shmseg; + shm_info->size = size; + shm_info->offset = (char *) mem - (char *) pool->shm; + shm_info->mem = mem; + shm_info->sync.sequence = XCB_NONE; + + /* scan for old, unused pools */ + cairo_list_foreach_entry_safe (pool, next, cairo_xcb_shm_mem_pool_t, + &connection->shm_pools, link) + { + if (pool->mem.free_bytes == pool->mem.max_bytes) { + _cairo_xcb_connection_shm_detach (connection, + pool->shmseg); + _cairo_xcb_shm_mem_pool_destroy (pool); + } + } + CAIRO_MUTEX_UNLOCK (connection->shm_mutex); + + *shm_info_out = shm_info; + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_xcb_shm_info_destroy (cairo_xcb_shm_info_t *shm_info) +{ + cairo_xcb_connection_t *connection = shm_info->connection; + + /* We can only return shm_info->mem to the allocator when we can be sure + * that the X server no longer reads from it. Since the X server processes + * requests in order, we send a GetInputFocus here. + * _cairo_xcb_shm_process_pending () will later check if the reply for that + * request was received and then actually mark this memory area as free. */ + + CAIRO_MUTEX_LOCK (connection->shm_mutex); + assert (shm_info->sync.sequence == XCB_NONE); + shm_info->sync = xcb_get_input_focus (connection->xcb_connection); + + cairo_list_init (&shm_info->pending); + cairo_list_add_tail (&shm_info->pending, &connection->shm_pending); + CAIRO_MUTEX_UNLOCK (connection->shm_mutex); +} + +void +_cairo_xcb_connection_shm_mem_pools_flush (cairo_xcb_connection_t *connection) +{ + CAIRO_MUTEX_LOCK (connection->shm_mutex); + _cairo_xcb_shm_process_pending (connection, PENDING_WAIT); + CAIRO_MUTEX_UNLOCK (connection->shm_mutex); +} + +void +_cairo_xcb_connection_shm_mem_pools_fini (cairo_xcb_connection_t *connection) +{ + assert (cairo_list_is_empty (&connection->shm_pending)); + while (! cairo_list_is_empty (&connection->shm_pools)) { + _cairo_xcb_shm_mem_pool_destroy (cairo_list_first_entry (&connection->shm_pools, + cairo_xcb_shm_mem_pool_t, + link)); + } +} + +#endif /* CAIRO_HAS_XCB_SHM_FUNCTIONS */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xcb-surface-core.c b/local/recipes/libs/cairo/source/src/cairo-xcb-surface-core.c new file mode 100644 index 0000000000..660e6d05a3 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xcb-surface-core.c @@ -0,0 +1,641 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-boxes-private.h" +#include "cairo-xcb-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-surface-backend-private.h" + +/* XXX dithering */ + +typedef struct _cairo_xcb_pixmap { + cairo_surface_t base; + + cairo_xcb_connection_t *connection; + cairo_xcb_screen_t *screen; + + cairo_surface_t *owner; + xcb_pixmap_t pixmap; + int width; + int height; + int depth; + int x0, y0; + cairo_bool_t repeat; +} cairo_xcb_pixmap_t; + +static cairo_status_t +_cairo_xcb_pixmap_finish (void *abstract_surface) +{ + cairo_xcb_pixmap_t *surface = abstract_surface; + cairo_status_t status; + + if (surface->owner != NULL) { + cairo_surface_destroy (surface->owner); + } else { + status = _cairo_xcb_connection_acquire (surface->connection); + if (unlikely (status)) + return status; + + xcb_free_pixmap (surface->connection->xcb_connection, + surface->pixmap); + _cairo_xcb_connection_release (surface->connection); + } + + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_surface_backend_t _cairo_xcb_pixmap_backend = { + CAIRO_SURFACE_TYPE_XCB, + _cairo_xcb_pixmap_finish, +}; + +static cairo_xcb_pixmap_t * +_cairo_xcb_pixmap_create (cairo_xcb_surface_t *target, + int width, int height) +{ + cairo_xcb_pixmap_t *surface; + + surface = _cairo_calloc (sizeof (cairo_xcb_pixmap_t)); + if (unlikely (surface == NULL)) + return (cairo_xcb_pixmap_t *) + _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_surface_init (&surface->base, + &_cairo_xcb_pixmap_backend, + NULL, + target->base.content, + FALSE); /* is_vector */ + + surface->connection = target->connection; + surface->screen = target->screen; + surface->owner = NULL; + surface->width = width; + surface->height = height; + surface->depth = target->depth; + surface->x0 = surface->y0 = 0; + surface->repeat = FALSE; + + surface->pixmap = + _cairo_xcb_connection_create_pixmap (surface->connection, + surface->depth, + target->drawable, + width, height); + + return surface; +} + +static cairo_xcb_pixmap_t * +_cairo_xcb_pixmap_copy (cairo_xcb_surface_t *target) +{ + cairo_xcb_pixmap_t *surface; + + surface = _cairo_calloc (sizeof (cairo_xcb_pixmap_t)); + if (unlikely (surface == NULL)) + return (cairo_xcb_pixmap_t *) + _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_surface_init (&surface->base, + &_cairo_xcb_pixmap_backend, + NULL, + target->base.content, + FALSE); /* is_vector */ + + surface->connection = target->connection; + surface->screen = target->screen; + surface->pixmap = target->drawable; + surface->owner = cairo_surface_reference (&target->base); + surface->width = target->width; + surface->height = target->height; + surface->depth = target->depth; + surface->x0 = surface->y0 = 0; + surface->repeat = FALSE; + + return surface; +} + +#if CAIRO_HAS_XCB_SHM_FUNCTIONS +static cairo_status_t +_cairo_xcb_shm_image_create_shm (cairo_xcb_connection_t *connection, + pixman_format_code_t pixman_format, + int width, int height, + cairo_image_surface_t **image_out, + cairo_xcb_shm_info_t **shm_info_out) +{ + cairo_surface_t *image = NULL; + cairo_xcb_shm_info_t *shm_info = NULL; + cairo_status_t status; + size_t size, stride; + + if (! (connection->flags & CAIRO_XCB_HAS_SHM)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (unlikely (width > XLIB_COORD_MAX || height > XLIB_COORD_MAX)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + stride = CAIRO_STRIDE_FOR_WIDTH_BPP (width, PIXMAN_FORMAT_BPP (pixman_format)); + size = stride * height; + if (size <= CAIRO_XCB_SHM_SMALL_IMAGE) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_xcb_connection_allocate_shm_info (connection, size, + FALSE, &shm_info); + if (unlikely (status)) + return status; + + image = _cairo_image_surface_create_with_pixman_format (shm_info->mem, + pixman_format, + width, height, + stride); + status = image->status; + if (unlikely (status)) { + _cairo_xcb_shm_info_destroy (shm_info); + return status; + } + + status = _cairo_user_data_array_set_data (&image->user_data, + (const cairo_user_data_key_t *) connection, + shm_info, + (cairo_destroy_func_t) _cairo_xcb_shm_info_destroy); + + if (unlikely (status)) { + cairo_surface_destroy (image); + _cairo_xcb_shm_info_destroy (shm_info); + return status; + } + + *image_out = (cairo_image_surface_t *) image; + *shm_info_out = shm_info; + return CAIRO_STATUS_SUCCESS; +} +#else +static cairo_status_t +_cairo_xcb_shm_image_create_shm (cairo_xcb_connection_t *connection, + pixman_format_code_t pixman_format, + int width, int height, + cairo_image_surface_t **image_out, + cairo_xcb_shm_info_t **shm_info_out) +{ + return CAIRO_INT_STATUS_UNSUPPORTED; +} +#endif + +cairo_status_t +_cairo_xcb_shm_image_create (cairo_xcb_connection_t *connection, + pixman_format_code_t pixman_format, + int width, int height, + cairo_image_surface_t **image_out, + cairo_xcb_shm_info_t **shm_info_out) +{ + cairo_surface_t *image = NULL; + cairo_xcb_shm_info_t *shm_info = NULL; + cairo_status_t status; + + status = _cairo_xcb_shm_image_create_shm (connection, + pixman_format, + width, + height, + image_out, + shm_info_out); + + if (status != CAIRO_STATUS_SUCCESS) { + image = _cairo_image_surface_create_with_pixman_format (NULL, + pixman_format, + width, height, + 0); + status = image->status; + if (unlikely (status)) + return status; + + *image_out = (cairo_image_surface_t *) image; + *shm_info_out = shm_info; + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_xcb_pixmap_t * +_pixmap_from_image (cairo_xcb_surface_t *target, + xcb_render_pictformat_t format, + cairo_image_surface_t *image, + cairo_xcb_shm_info_t *shm_info) +{ + xcb_gcontext_t gc; + cairo_xcb_pixmap_t *pixmap; + + pixmap = _cairo_xcb_pixmap_create (target, + image->width, + image->height); + if (unlikely (pixmap->base.status)) + return pixmap; + + gc = _cairo_xcb_screen_get_gc (target->screen, pixmap->pixmap, image->depth); + + if (shm_info != NULL) { + _cairo_xcb_connection_shm_put_image (target->connection, + pixmap->pixmap, gc, + image->width, image->height, + 0, 0, + image->width, image->height, + 0, 0, + image->depth, + shm_info->shm, + shm_info->offset); + } else { + int len; + + /* Do we need to trim the image? */ + len = CAIRO_STRIDE_FOR_WIDTH_BPP (image->width, + PIXMAN_FORMAT_BPP (image->pixman_format)); + if (len == image->stride) { + _cairo_xcb_connection_put_image (target->connection, + pixmap->pixmap, gc, + image->width, image->height, + 0, 0, + image->depth, + image->stride, + image->data); + } else { + _cairo_xcb_connection_put_subimage (target->connection, + pixmap->pixmap, gc, + 0, 0, + image->width, image->height, + PIXMAN_FORMAT_BPP (image->pixman_format) / 8, + image->stride, + 0, 0, + image->depth, + image->data); + + } + } + + _cairo_xcb_screen_put_gc (target->screen, image->depth, gc); + + return pixmap; +} + +static cairo_xcb_pixmap_t * +_render_to_pixmap (cairo_xcb_surface_t *target, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + cairo_image_surface_t *image; + cairo_xcb_shm_info_t *shm_info; + cairo_pattern_union_t copy; + cairo_status_t status; + cairo_xcb_pixmap_t *pixmap; + + status = _cairo_xcb_shm_image_create (target->screen->connection, + target->pixman_format, + extents->width, extents->height, + &image, &shm_info); + if (unlikely (status)) + return (cairo_xcb_pixmap_t *) _cairo_surface_create_in_error (status); + + _cairo_pattern_init_static_copy (©.base, pattern); + cairo_matrix_translate (©.base.matrix, -extents->x, -extents->y); + status = _cairo_surface_paint (&image->base, + CAIRO_OPERATOR_SOURCE, + ©.base, + NULL); + if (unlikely (status)) { + cairo_surface_destroy (&image->base); + return (cairo_xcb_pixmap_t *) _cairo_surface_create_in_error (status); + } + + pixmap = _pixmap_from_image (target, target->xrender_format, image, shm_info); + cairo_surface_destroy (&image->base); + + if (unlikely (pixmap->base.status)) + return pixmap; + + pixmap->x0 = -extents->x; + pixmap->y0 = -extents->y; + return pixmap; +} + +static cairo_xcb_pixmap_t * +_copy_to_pixmap (cairo_xcb_surface_t *source) +{ + cairo_xcb_pixmap_t *pixmap; + + /* If the source may be a window, we need to copy it and its children + * via a temporary pixmap so that we can IncludeInferiors on the source + * and use ClipByChildren on the destination. + */ + if (source->owns_pixmap) { + pixmap = _cairo_xcb_pixmap_copy (source); + if (unlikely (pixmap->base.status)) + return pixmap; + } else { + uint32_t values[1]; + xcb_gcontext_t gc; + + pixmap = _cairo_xcb_pixmap_create (source, + source->width, + source->height); + if (unlikely (pixmap->base.status)) + return pixmap; + + gc = _cairo_xcb_screen_get_gc (source->screen, + pixmap->pixmap, + pixmap->depth); + + values[0] = TRUE; + _cairo_xcb_connection_change_gc (pixmap->connection, gc, + XCB_GC_SUBWINDOW_MODE, values); + + _cairo_xcb_connection_copy_area (pixmap->connection, + source->drawable, + pixmap->pixmap, gc, + 0, 0, + 0, 0, + source->width, + source->height); + + values[0] = FALSE; + _cairo_xcb_connection_change_gc (pixmap->connection, gc, + XCB_GC_SUBWINDOW_MODE, values); + + _cairo_xcb_screen_put_gc (source->screen, + pixmap->depth, + gc); + } + + return pixmap; +} +static cairo_xcb_pixmap_t * +_cairo_xcb_surface_pixmap (cairo_xcb_surface_t *target, + const cairo_surface_pattern_t *pattern, + const cairo_rectangle_int_t *extents, + int tx, int ty) +{ + cairo_surface_t *source; + cairo_xcb_pixmap_t *pixmap; + + source = pattern->surface; + pixmap = (cairo_xcb_pixmap_t *) + _cairo_surface_has_snapshot (source, &_cairo_xcb_pixmap_backend); + if (pixmap != NULL && pixmap->screen == target->screen) + return (cairo_xcb_pixmap_t *) cairo_surface_reference (&pixmap->base); + + if (_cairo_surface_is_xcb(source) && + ((cairo_xcb_surface_t *) source)->screen == target->screen) + { + cairo_xcb_surface_t *xcb_source = (cairo_xcb_surface_t *) source; + + if (xcb_source->depth == target->depth) + pixmap = _copy_to_pixmap (xcb_source); + } +#if CAIRO_HAS_XLIB_XCB_FUNCTIONS + else if (source->type == CAIRO_SURFACE_TYPE_XLIB && + ((cairo_xlib_xcb_surface_t *) source)->xcb->screen == target->screen) + { + cairo_xcb_surface_t *xcb_source = ((cairo_xlib_xcb_surface_t *) source)->xcb; + + if (xcb_source->depth == target->depth) + pixmap = _copy_to_pixmap (xcb_source); + } +#endif + + if (pixmap == NULL) { + cairo_rectangle_int_t rect; + + if (! _cairo_surface_get_extents (source, &rect)) { + rect.x = rect.y = 0; + rect.width = target->width; + rect.height = target->height; + } + + pixmap = _render_to_pixmap (target, &pattern->base, &rect); + } + + if (unlikely (pixmap->base.status)) + return pixmap; + + _cairo_surface_attach_snapshot (source, &pixmap->base, NULL); + + if (pattern->base.extend != CAIRO_EXTEND_NONE) { + if (extents->x < 0 || extents->y < 0 || + extents->x + extents->width > pixmap->width || + extents->y + extents->height > pixmap->height) + { + pixmap->repeat = TRUE; + } + } + + pixmap->x0 += tx; + pixmap->y0 += ty; + + return pixmap; +} + +static cairo_xcb_pixmap_t * +_cairo_xcb_pixmap_for_pattern (cairo_xcb_surface_t *target, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + int tx, ty; + + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SURFACE: + /* Core can only perform a native, unscaled blit, but can handle tiles */ + if (_cairo_matrix_is_integer_translation (&pattern->matrix, &tx, &ty)) { + switch (pattern->extend) { + case CAIRO_EXTEND_NONE: + case CAIRO_EXTEND_REPEAT: + return _cairo_xcb_surface_pixmap (target, + (cairo_surface_pattern_t *) pattern, + extents, tx, ty); + + default: + case CAIRO_EXTEND_PAD: + case CAIRO_EXTEND_REFLECT: + break; + } + } + /* fallthrough */ + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + case CAIRO_PATTERN_TYPE_MESH: + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + return _render_to_pixmap (target, pattern, extents); + + default: + case CAIRO_PATTERN_TYPE_SOLID: + ASSERT_NOT_REACHED; + return NULL; + } +} + +cairo_status_t +_cairo_xcb_surface_core_copy_boxes (cairo_xcb_surface_t *dst, + const cairo_pattern_t *src_pattern, + const cairo_rectangle_int_t *extents, + const cairo_boxes_t *boxes) +{ + cairo_xcb_pixmap_t *src; + const struct _cairo_boxes_chunk *chunk; + xcb_gcontext_t gc; + cairo_status_t status; + + status = _cairo_xcb_connection_acquire (dst->connection); + if (unlikely (status)) + return status; + + src = _cairo_xcb_pixmap_for_pattern (dst, src_pattern, extents); + status = src->base.status; + if (unlikely (status)) + goto CLEANUP_CONNECTION; + + assert (src->depth == dst->depth); + + gc = _cairo_xcb_screen_get_gc (dst->screen, src->pixmap, src->depth); + + if (src->repeat) { + uint32_t mask = + XCB_GC_FILL_STYLE | + XCB_GC_TILE | + XCB_GC_TILE_STIPPLE_ORIGIN_X | + XCB_GC_TILE_STIPPLE_ORIGIN_Y; + uint32_t values[] = { + XCB_FILL_STYLE_TILED, + src->pixmap, + - src->x0, - src->y0, + }; + xcb_rectangle_t *xcb_rects; + + _cairo_xcb_connection_change_gc (dst->connection, gc, mask, values); + + for (chunk = &boxes->chunks; chunk != NULL; chunk = chunk->next) { + int i; + + xcb_rects = (xcb_rectangle_t *) chunk->base; + + for (i = 0; i < chunk->count; i++) { + int x1 = _cairo_fixed_integer_round (chunk->base[i].p1.x); + int x2 = _cairo_fixed_integer_round (chunk->base[i].p2.x); + int y1 = _cairo_fixed_integer_round (chunk->base[i].p1.y); + int y2 = _cairo_fixed_integer_round (chunk->base[i].p2.y); + + xcb_rects[i].x = x1; + xcb_rects[i].y = y1; + xcb_rects[i].width = x2 - x1; + xcb_rects[i].height = y2 - y1; + } + _cairo_xcb_connection_poly_fill_rectangle (dst->connection, + dst->drawable, + gc, chunk->count, xcb_rects); + } + + values[0] = 0; + _cairo_xcb_connection_change_gc (dst->connection, gc, XCB_GC_FILL_STYLE, values); + } else { + for (chunk = &boxes->chunks; chunk != NULL; chunk = chunk->next) { + int i; + + for (i = 0; i < chunk->count; i++) { + int x1 = _cairo_fixed_integer_round (chunk->base[i].p1.x); + int x2 = _cairo_fixed_integer_round (chunk->base[i].p2.x); + int y1 = _cairo_fixed_integer_round (chunk->base[i].p1.y); + int y2 = _cairo_fixed_integer_round (chunk->base[i].p2.y); + + _cairo_xcb_connection_copy_area (dst->connection, + src->pixmap, + dst->drawable, gc, + src->x0 + x1, + src->y0 + y1, + x1, y1, + x2 - x1, y2 - y1); + } + } + } + + _cairo_xcb_screen_put_gc (dst->screen, src->depth, gc); + cairo_surface_destroy (&src->base); + + CLEANUP_CONNECTION: + _cairo_xcb_connection_release (dst->connection); + + return status; +} + +cairo_status_t +_cairo_xcb_surface_core_fill_boxes (cairo_xcb_surface_t *dst, + const cairo_color_t *color, + cairo_boxes_t *boxes) +{ + struct _cairo_boxes_chunk *chunk; + xcb_gcontext_t gc; + cairo_status_t status; + + status = _cairo_xcb_connection_acquire (dst->connection); + if (unlikely (status)) + return status; + + gc = _cairo_xcb_screen_get_gc (dst->screen, dst->drawable, dst->depth); + +#if 0 + xcb_pixmap_t source; + + source = _dither_source (dst, color); + XSetTSOrigin (surface->dpy, gc, 0, 0); + XSetTile (surface->dpy, gc, source); +#endif + + for (chunk = &boxes->chunks; chunk != NULL; chunk = chunk->next) { + xcb_rectangle_t *xcb_rects; + int i; + + xcb_rects = (xcb_rectangle_t *) chunk->base; + for (i = 0; i < chunk->count; i++) { + int x1 = _cairo_fixed_integer_round (chunk->base[i].p1.x); + int x2 = _cairo_fixed_integer_round (chunk->base[i].p2.x); + int y1 = _cairo_fixed_integer_round (chunk->base[i].p1.y); + int y2 = _cairo_fixed_integer_round (chunk->base[i].p2.y); + + xcb_rects[i].x = x1; + xcb_rects[i].y = y1; + xcb_rects[i].width = x2 - x1; + xcb_rects[i].height = y2 - y1; + } + + _cairo_xcb_connection_poly_fill_rectangle (dst->connection, + dst->drawable, gc, + chunk->count, xcb_rects); + } + + _cairo_xcb_screen_put_gc (dst->screen, dst->depth, gc); + _cairo_xcb_connection_release (dst->connection); + + return CAIRO_STATUS_SUCCESS; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-xcb-surface-render.c b/local/recipes/libs/cairo/source/src/cairo-xcb-surface-render.c new file mode 100644 index 0000000000..2777c3cda3 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xcb-surface-render.c @@ -0,0 +1,4877 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "cairo-xcb-private.h" + +#include "cairo-boxes-private.h" +#include "cairo-clip-inline.h" +#include "cairo-clip-private.h" +#include "cairo-composite-rectangles-private.h" +#include "cairo-image-surface-inline.h" +#include "cairo-image-surface-private.h" +#include "cairo-list-inline.h" +#include "cairo-region-private.h" +#include "cairo-surface-offset-private.h" +#include "cairo-surface-snapshot-inline.h" +#include "cairo-surface-subsurface-private.h" +#include "cairo-traps-private.h" +#include "cairo-recording-surface-inline.h" +#include "cairo-paginated-private.h" +#include "cairo-pattern-inline.h" + +#define PIXMAN_MAX_INT ((pixman_fixed_1 >> 1) - pixman_fixed_e) /* need to ensure deltas also fit */ + +static cairo_status_t +_clip_and_composite_boxes (cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *src, + cairo_boxes_t *boxes, + cairo_composite_rectangles_t *extents); + +static inline cairo_xcb_connection_t * +_picture_to_connection (cairo_xcb_picture_t *picture) +{ + return (cairo_xcb_connection_t *) picture->base.device; +} + +static void +_cairo_xcb_surface_ensure_picture (cairo_xcb_surface_t *surface); + +static uint32_t +hars_petruska_f54_1_random (void) +{ +#define rol(x,k) ((x << k) | (x >> (32-k))) + static uint32_t x; + return x = (x ^ rol (x, 5) ^ rol (x, 24)) + 0x37798849; +#undef rol +} + +static cairo_status_t +_cairo_xcb_picture_finish (void *abstract_surface) +{ + cairo_xcb_picture_t *surface = abstract_surface; + cairo_xcb_connection_t *connection = _picture_to_connection (surface); + cairo_status_t status; + + status = _cairo_xcb_connection_acquire (connection); + cairo_list_del (&surface->link); + if (unlikely (status)) + return status; + + _cairo_xcb_connection_render_free_picture (connection, surface->picture); + + _cairo_xcb_connection_release (connection); + + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_surface_backend_t _cairo_xcb_picture_backend = { + CAIRO_SURFACE_TYPE_XCB, + _cairo_xcb_picture_finish, +}; + +static const struct xcb_render_transform_t identity_transform = { + 1 << 16, 0, 0, + 0, 1 << 16, 0, + 0, 0, 1 << 16, +}; + +static cairo_xcb_picture_t * +_cairo_xcb_picture_create (cairo_xcb_screen_t *screen, + pixman_format_code_t pixman_format, + xcb_render_pictformat_t xrender_format, + int width, int height) +{ + cairo_xcb_picture_t *surface; + + surface = _cairo_calloc (sizeof (cairo_xcb_picture_t)); + if (unlikely (surface == NULL)) + return (cairo_xcb_picture_t *) + _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_surface_init (&surface->base, + &_cairo_xcb_picture_backend, + &screen->connection->device, + _cairo_content_from_pixman_format (pixman_format), + FALSE); /* is_vector */ + + cairo_list_add (&surface->link, &screen->pictures); + + surface->screen = screen; + surface->picture = xcb_generate_id (screen->connection->xcb_connection); + surface->pixman_format = pixman_format; + surface->xrender_format = xrender_format; + + surface->x0 = surface->y0 = 0; + surface->x = surface->y = 0; + surface->width = width; + surface->height = height; + + surface->transform = identity_transform; + surface->extend = CAIRO_EXTEND_NONE; + surface->filter = CAIRO_FILTER_NEAREST; + surface->has_component_alpha = FALSE; + + return surface; +} + +static inline cairo_bool_t +_operator_is_supported (uint32_t flags, cairo_operator_t op) +{ + if (op <= CAIRO_OPERATOR_SATURATE) + return TRUE; + + /* Can we use PDF operators? */ +#if CAIRO_XCB_RENDER_AT_LEAST(0, 11) + if (op <= CAIRO_OPERATOR_HSL_LUMINOSITY) + return flags & CAIRO_XCB_RENDER_HAS_PDF_OPERATORS; +#endif + + return FALSE; +} + +static int +_render_operator (cairo_operator_t op) +{ +#define C(x,y) case CAIRO_OPERATOR_##x: return XCB_RENDER_PICT_OP_##y + switch (op) { + C(CLEAR, CLEAR); + C(SOURCE, SRC); + + C(OVER, OVER); + C(IN, IN); + C(OUT, OUT); + C(ATOP, ATOP); + + C(DEST, DST); + C(DEST_OVER, OVER_REVERSE); + C(DEST_IN, IN_REVERSE); + C(DEST_OUT, OUT_REVERSE); + C(DEST_ATOP, ATOP_REVERSE); + + C(XOR, XOR); + C(ADD, ADD); + C(SATURATE, SATURATE); + + /* PDF operators were added in RENDER 0.11, check if the xcb headers have + * the defines, else fall through to the default case. */ +#if CAIRO_XCB_RENDER_AT_LEAST(0, 11) +#define BLEND(x,y) C(x,y) +#else +#define BLEND(x,y) case CAIRO_OPERATOR_##x: +#endif + BLEND(MULTIPLY, MULTIPLY); + BLEND(SCREEN, SCREEN); + BLEND(OVERLAY, OVERLAY); + BLEND(DARKEN, DARKEN); + BLEND(LIGHTEN, LIGHTEN); + BLEND(COLOR_DODGE, COLOR_DODGE); + BLEND(COLOR_BURN, COLOR_BURN); + BLEND(HARD_LIGHT, HARD_LIGHT); + BLEND(SOFT_LIGHT, SOFT_LIGHT); + BLEND(DIFFERENCE, DIFFERENCE); + BLEND(EXCLUSION, EXCLUSION); + BLEND(HSL_HUE, HSL_HUE); + BLEND(HSL_SATURATION, HSL_SATURATION); + BLEND(HSL_COLOR, HSL_COLOR); + BLEND(HSL_LUMINOSITY, HSL_LUMINOSITY); + + default: + ASSERT_NOT_REACHED; + return XCB_RENDER_PICT_OP_OVER; + } +} + +static cairo_status_t +_cairo_xcb_surface_set_clip_region (cairo_xcb_surface_t *surface, + cairo_region_t *region) +{ + xcb_rectangle_t stack_rects[CAIRO_STACK_ARRAY_LENGTH (xcb_rectangle_t)]; + xcb_rectangle_t *rects = stack_rects; + int i, num_rects; + + num_rects = cairo_region_num_rectangles (region); + + if (num_rects > ARRAY_LENGTH (stack_rects)) { + rects = _cairo_malloc_ab (num_rects, sizeof (xcb_rectangle_t)); + if (unlikely (rects == NULL)) { + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + } + + for (i = 0; i < num_rects; i++) { + cairo_rectangle_int_t rect; + + cairo_region_get_rectangle (region, i, &rect); + + rects[i].x = rect.x; + rects[i].y = rect.y; + rects[i].width = rect.width; + rects[i].height = rect.height; + } + + _cairo_xcb_connection_render_set_picture_clip_rectangles (surface->connection, + surface->picture, + 0, 0, + num_rects, rects); + + if (rects != stack_rects) + free (rects); + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_xcb_surface_clear_clip_region (cairo_xcb_surface_t *surface) +{ + uint32_t values[] = { XCB_NONE }; + _cairo_xcb_connection_render_change_picture (surface->connection, + surface->picture, + XCB_RENDER_CP_CLIP_MASK, + values); +} + +static void +_cairo_xcb_surface_set_precision (cairo_xcb_surface_t *surface, + cairo_antialias_t antialias) +{ + cairo_xcb_connection_t *connection = surface->connection; + uint32_t precision; + + if (connection->force_precision != -1) + precision = connection->force_precision; + else switch (antialias) { + default: + case CAIRO_ANTIALIAS_DEFAULT: + case CAIRO_ANTIALIAS_GRAY: + case CAIRO_ANTIALIAS_NONE: + case CAIRO_ANTIALIAS_FAST: + case CAIRO_ANTIALIAS_GOOD: + precision = XCB_RENDER_POLY_MODE_IMPRECISE; + break; + case CAIRO_ANTIALIAS_SUBPIXEL: + case CAIRO_ANTIALIAS_BEST: + precision = XCB_RENDER_POLY_MODE_PRECISE; + break; + } + + if (surface->precision != precision) { + _cairo_xcb_connection_render_change_picture (connection, + surface->picture, + XCB_RENDER_CP_POLY_MODE, + &precision); + surface->precision = precision; + } +} + + +static void +_cairo_xcb_surface_ensure_picture (cairo_xcb_surface_t *surface) +{ + assert (surface->fallback == NULL); + if (surface->picture == XCB_NONE) { + uint32_t values[1]; + uint32_t flags = 0; + + if (surface->precision != XCB_RENDER_POLY_MODE_PRECISE) { + flags |= XCB_RENDER_CP_POLY_MODE; + values[0] = surface->precision; + } + + surface->picture = xcb_generate_id (surface->connection->xcb_connection); + _cairo_xcb_connection_render_create_picture (surface->connection, + surface->picture, + surface->drawable, + surface->xrender_format, + flags, values); + } +} + +static cairo_xcb_picture_t * +_picture_from_image (cairo_xcb_surface_t *target, + xcb_render_pictformat_t format, + cairo_image_surface_t *image, + cairo_xcb_shm_info_t *shm_info) +{ + xcb_pixmap_t pixmap; + xcb_gcontext_t gc; + cairo_xcb_picture_t *picture; + + pixmap = _cairo_xcb_connection_create_pixmap (target->connection, + image->depth, + target->drawable, + image->width, image->height); + + gc = _cairo_xcb_screen_get_gc (target->screen, pixmap, image->depth); + + if (shm_info != NULL) { + _cairo_xcb_connection_shm_put_image (target->connection, + pixmap, gc, + image->width, image->height, + 0, 0, + image->width, image->height, + 0, 0, + image->depth, + shm_info->shm, + shm_info->offset); + } else { + int len; + + /* Do we need to trim the image? */ + len = CAIRO_STRIDE_FOR_WIDTH_BPP (image->width, PIXMAN_FORMAT_BPP (image->pixman_format)); + if (len == image->stride) { + _cairo_xcb_connection_put_image (target->connection, + pixmap, gc, + image->width, image->height, + 0, 0, + image->depth, + image->stride, + image->data); + } else { + _cairo_xcb_connection_put_subimage (target->connection, + pixmap, gc, + 0, 0, + image->width, image->height, + PIXMAN_FORMAT_BPP (image->pixman_format) / 8, + image->stride, + 0, 0, + image->depth, + image->data); + + } + } + + _cairo_xcb_screen_put_gc (target->screen, image->depth, gc); + + picture = _cairo_xcb_picture_create (target->screen, + image->pixman_format, format, + image->width, image->height); + if (likely (picture->base.status == CAIRO_STATUS_SUCCESS)) { + _cairo_xcb_connection_render_create_picture (target->connection, + picture->picture, pixmap, format, + 0, 0); + } + + xcb_free_pixmap (target->connection->xcb_connection, pixmap); + + return picture; +} + +static cairo_bool_t +_pattern_is_supported (uint32_t flags, + const cairo_pattern_t *pattern) + +{ + if (pattern->type == CAIRO_PATTERN_TYPE_SOLID) + return TRUE; + + switch (pattern->extend) { + default: + ASSERT_NOT_REACHED; + case CAIRO_EXTEND_NONE: + case CAIRO_EXTEND_REPEAT: + break; + case CAIRO_EXTEND_PAD: + case CAIRO_EXTEND_REFLECT: + if ((flags & CAIRO_XCB_RENDER_HAS_EXTENDED_REPEAT) == 0) + return FALSE; + } + + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + switch (pattern->filter) { + case CAIRO_FILTER_FAST: + case CAIRO_FILTER_NEAREST: + return (flags & CAIRO_XCB_RENDER_HAS_PICTURE_TRANSFORM) || + _cairo_matrix_is_integer_translation (&pattern->matrix, NULL, NULL); + case CAIRO_FILTER_GOOD: + return flags & CAIRO_XCB_RENDER_HAS_FILTER_GOOD; + case CAIRO_FILTER_BEST: + return flags & CAIRO_XCB_RENDER_HAS_FILTER_BEST; + case CAIRO_FILTER_BILINEAR: + case CAIRO_FILTER_GAUSSIAN: + default: + return flags & CAIRO_XCB_RENDER_HAS_FILTERS; + } + } else if (pattern->type == CAIRO_PATTERN_TYPE_MESH) { + return FALSE; + } else { /* gradient */ + if ((flags & CAIRO_XCB_RENDER_HAS_GRADIENTS) == 0) + return FALSE; + + /* The RENDER specification says that the inner circle has to be + * completely contained inside the outer one. */ + if (pattern->type == CAIRO_PATTERN_TYPE_RADIAL && + ! _cairo_radial_pattern_focus_is_inside ((cairo_radial_pattern_t *) pattern)) + { + return FALSE; + } + return TRUE; + } +} + +static void +_cairo_xcb_picture_set_matrix (cairo_xcb_picture_t *picture, + const cairo_matrix_t *matrix, + cairo_filter_t filter, + double xc, double yc) +{ + xcb_render_transform_t transform; + pixman_transform_t *pixman_transform; + cairo_int_status_t ignored; + + /* Casting between pixman_transform_t and xcb_render_transform_t is safe + * because they happen to be the exact same type. + */ + pixman_transform = (pixman_transform_t *) &transform; + + picture->x = picture->x0; + picture->y = picture->y0; + ignored = _cairo_matrix_to_pixman_matrix_offset (matrix, filter, xc, yc, + pixman_transform, + &picture->x, &picture->y); + (void) ignored; + + if (memcmp (&picture->transform, &transform, sizeof (xcb_render_transform_t))) { + _cairo_xcb_connection_render_set_picture_transform (_picture_to_connection (picture), + picture->picture, + &transform); + + picture->transform = transform; + } +} + +static void +_cairo_xcb_picture_set_filter (cairo_xcb_picture_t *picture, + cairo_filter_t filter) +{ + const char *render_filter; + int len; + + if (picture->filter == filter) + return; + + switch (filter) { + case CAIRO_FILTER_FAST: + render_filter = "fast"; + len = strlen ("fast"); + break; + + case CAIRO_FILTER_GOOD: + render_filter = "good"; + len = strlen ("good"); + break; + + case CAIRO_FILTER_BEST: + render_filter = "best"; + len = strlen ("best"); + break; + + case CAIRO_FILTER_NEAREST: + render_filter = "nearest"; + len = strlen ("nearest"); + break; + + case CAIRO_FILTER_BILINEAR: + render_filter = "bilinear"; + len = strlen ("bilinear"); + break; + + default: + ASSERT_NOT_REACHED; + case CAIRO_FILTER_GAUSSIAN: + render_filter = "best"; + len = strlen ("best"); + break; + } + + _cairo_xcb_connection_render_set_picture_filter (_picture_to_connection (picture), + picture->picture, + len, (char *) render_filter); + picture->filter = filter; +} + +static void +_cairo_xcb_picture_set_extend (cairo_xcb_picture_t *picture, + cairo_extend_t extend) +{ + uint32_t pa[1]; + + if (picture->extend == extend) + return; + + switch (extend) { + default: + ASSERT_NOT_REACHED; + case CAIRO_EXTEND_NONE: + pa[0] = XCB_RENDER_REPEAT_NONE; + break; + + case CAIRO_EXTEND_REPEAT: + pa[0] = XCB_RENDER_REPEAT_NORMAL; + break; + + case CAIRO_EXTEND_REFLECT: + pa[0] = XCB_RENDER_REPEAT_REFLECT; + break; + + case CAIRO_EXTEND_PAD: + pa[0] = XCB_RENDER_REPEAT_PAD; + break; + } + + _cairo_xcb_connection_render_change_picture (_picture_to_connection (picture), + picture->picture, + XCB_RENDER_CP_REPEAT, pa); + picture->extend = extend; +} + +static void +_cairo_xcb_picture_set_component_alpha (cairo_xcb_picture_t *picture, + cairo_bool_t ca) +{ + uint32_t pa[1]; + + if (picture->has_component_alpha == ca) + return; + + pa[0] = ca; + + _cairo_xcb_connection_render_change_picture (_picture_to_connection (picture), + picture->picture, + XCB_RENDER_CP_COMPONENT_ALPHA, + pa); + picture->has_component_alpha = ca; +} + +static cairo_xcb_picture_t * +_solid_picture (cairo_xcb_surface_t *target, + const cairo_color_t *color) +{ + xcb_render_color_t xcb_color; + xcb_render_pictformat_t xrender_format; + cairo_xcb_picture_t *picture; + + xcb_color.red = color->red_short; + xcb_color.green = color->green_short; + xcb_color.blue = color->blue_short; + xcb_color.alpha = color->alpha_short; + + xrender_format = target->screen->connection->standard_formats[CAIRO_FORMAT_ARGB32]; + picture = _cairo_xcb_picture_create (target->screen, + PIXMAN_a8r8g8b8, + xrender_format, + -1, -1); + if (unlikely (picture->base.status)) + return picture; + + if (target->connection->flags & CAIRO_XCB_RENDER_HAS_GRADIENTS) { + _cairo_xcb_connection_render_create_solid_fill (target->connection, + picture->picture, + xcb_color); + } else { + xcb_pixmap_t pixmap; + uint32_t values[] = { XCB_RENDER_REPEAT_NORMAL }; + + pixmap = _cairo_xcb_connection_create_pixmap (target->connection, + 32, target->drawable, 1, 1); + _cairo_xcb_connection_render_create_picture (target->connection, + picture->picture, + pixmap, + xrender_format, + XCB_RENDER_CP_REPEAT, + values); + if (target->connection->flags & CAIRO_XCB_RENDER_HAS_FILL_RECTANGLES) { + xcb_rectangle_t rect; + + rect.x = rect.y = 0; + rect.width = rect.height = 1; + + _cairo_xcb_connection_render_fill_rectangles (_picture_to_connection (picture), + XCB_RENDER_PICT_OP_SRC, + picture->picture, + xcb_color, 1, &rect); + } else { + xcb_gcontext_t gc; + uint32_t pixel; + + gc = _cairo_xcb_screen_get_gc (target->screen, pixmap, 32); + + /* XXX byte ordering? */ + pixel = (((uint32_t)color->alpha_short >> 8) << 24) | + ((color->red_short >> 8) << 16) | + ((color->green_short >> 8) << 8) | + ((color->blue_short >> 8) << 0); + + _cairo_xcb_connection_put_image (target->connection, + pixmap, gc, + 1, 1, 0, 0, + 32, 4, &pixel); + + _cairo_xcb_screen_put_gc (target->screen, 32, gc); + } + + xcb_free_pixmap (target->connection->xcb_connection, pixmap); + } + + return picture; +} + +static cairo_xcb_picture_t * +_cairo_xcb_transparent_picture (cairo_xcb_surface_t *target) +{ + cairo_xcb_picture_t *picture; + + picture = (cairo_xcb_picture_t *) target->screen->stock_colors[CAIRO_STOCK_TRANSPARENT]; + if (picture == NULL) { + picture = _solid_picture (target, CAIRO_COLOR_TRANSPARENT); + target->screen->stock_colors[CAIRO_STOCK_TRANSPARENT] = &picture->base; + } + + return (cairo_xcb_picture_t *) cairo_surface_reference (&picture->base); +} + +static cairo_xcb_picture_t * +_cairo_xcb_black_picture (cairo_xcb_surface_t *target) +{ + cairo_xcb_picture_t *picture; + + picture = (cairo_xcb_picture_t *) target->screen->stock_colors[CAIRO_STOCK_BLACK]; + if (picture == NULL) { + picture = _solid_picture (target, CAIRO_COLOR_BLACK); + target->screen->stock_colors[CAIRO_STOCK_BLACK] = &picture->base; + } + + return (cairo_xcb_picture_t *) cairo_surface_reference (&picture->base); +} + +static cairo_xcb_picture_t * +_cairo_xcb_white_picture (cairo_xcb_surface_t *target) +{ + cairo_xcb_picture_t *picture; + + picture = (cairo_xcb_picture_t *) target->screen->stock_colors[CAIRO_STOCK_WHITE]; + if (picture == NULL) { + picture = _solid_picture (target, CAIRO_COLOR_WHITE); + target->screen->stock_colors[CAIRO_STOCK_WHITE] = &picture->base; + } + + return (cairo_xcb_picture_t *) cairo_surface_reference (&picture->base); +} + +static cairo_xcb_picture_t * +_cairo_xcb_solid_picture (cairo_xcb_surface_t *target, + const cairo_solid_pattern_t *pattern) +{ + cairo_xcb_picture_t *picture; + cairo_xcb_screen_t *screen; + int i, n_cached; + + if (pattern->color.alpha_short <= 0x00ff) + return _cairo_xcb_transparent_picture (target); + + if (pattern->color.alpha_short >= 0xff00) { + if (pattern->color.red_short <= 0x00ff && + pattern->color.green_short <= 0x00ff && + pattern->color.blue_short <= 0x00ff) + { + return _cairo_xcb_black_picture (target); + } + + if (pattern->color.red_short >= 0xff00 && + pattern->color.green_short >= 0xff00 && + pattern->color.blue_short >= 0xff00) + { + return _cairo_xcb_white_picture (target); + } + } + + screen = target->screen; + n_cached = screen->solid_cache_size; + for (i = 0; i < n_cached; i++) { + if (_cairo_color_equal (&screen->solid_cache[i].color, &pattern->color)) { + return (cairo_xcb_picture_t *) cairo_surface_reference (screen->solid_cache[i].picture); + } + } + + picture = _solid_picture (target, &pattern->color); + if (unlikely (picture->base.status)) + return picture; + + if (screen->solid_cache_size < ARRAY_LENGTH (screen->solid_cache)) { + i = screen->solid_cache_size++; + } else { + i = hars_petruska_f54_1_random () % ARRAY_LENGTH (screen->solid_cache); + cairo_surface_destroy (screen->solid_cache[i].picture); + } + screen->solid_cache[i].picture = cairo_surface_reference (&picture->base); + screen->solid_cache[i].color = pattern->color; + + return picture; +} + +static cairo_xcb_picture_t * +_render_to_picture (cairo_xcb_surface_t *target, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + cairo_image_surface_t *image; + cairo_xcb_shm_info_t *shm_info; + cairo_pattern_union_t copy; + cairo_status_t status; + cairo_xcb_picture_t *picture; + pixman_format_code_t pixman_format; + xcb_render_pictformat_t xrender_format; + + /* XXX handle extend modes via tiling? */ + /* XXX alpha-only masks? */ + + pixman_format = PIXMAN_a8r8g8b8; + xrender_format = target->screen->connection->standard_formats[CAIRO_FORMAT_ARGB32]; + + status = _cairo_xcb_shm_image_create (target->screen->connection, + pixman_format, + extents->width, extents->height, + &image, &shm_info); + if (unlikely (status)) + return (cairo_xcb_picture_t *) _cairo_surface_create_in_error (status); + + _cairo_pattern_init_static_copy (©.base, pattern); + cairo_matrix_translate (©.base.matrix, extents->x, extents->y); + status = _cairo_surface_paint (&image->base, + CAIRO_OPERATOR_SOURCE, + ©.base, + NULL); + if (unlikely (status)) { + cairo_surface_destroy (&image->base); + return (cairo_xcb_picture_t *) _cairo_surface_create_in_error (status); + } + + picture = _picture_from_image (target, xrender_format, image, shm_info); + cairo_surface_destroy (&image->base); + + if (unlikely (picture->base.status)) + return picture; + + _cairo_xcb_picture_set_component_alpha (picture, pattern->has_component_alpha); + picture->x = -extents->x; + picture->y = -extents->y; + + return picture; +} + +static xcb_render_fixed_t * +_gradient_to_xcb (const cairo_gradient_pattern_t *gradient, + unsigned int *n_stops, + char *buf, unsigned int buflen) +{ + xcb_render_fixed_t *stops; + xcb_render_color_t *colors; + unsigned int i; + + assert (gradient->n_stops > 0); + *n_stops = MAX (gradient->n_stops, 2); + + if (*n_stops * (sizeof (xcb_render_fixed_t) + sizeof (xcb_render_color_t)) < buflen) + { + stops = (xcb_render_fixed_t *) buf; + } + else + { + stops = + _cairo_malloc_ab (*n_stops, + sizeof (xcb_render_fixed_t) + sizeof (xcb_render_color_t)); + if (unlikely (stops == NULL)) + return NULL; + } + + colors = (xcb_render_color_t *) (stops + *n_stops); + for (i = 0; i < gradient->n_stops; i++) { + stops[i] = + _cairo_fixed_16_16_from_double (gradient->stops[i].offset); + + colors[i].red = gradient->stops[i].color.red_short; + colors[i].green = gradient->stops[i].color.green_short; + colors[i].blue = gradient->stops[i].color.blue_short; + colors[i].alpha = gradient->stops[i].color.alpha_short; + } + + /* RENDER does not support gradients with less than 2 stops. If a + * gradient has only a single stop, duplicate it to make RENDER + * happy. */ + if (gradient->n_stops == 1) { + stops[1] = _cairo_fixed_16_16_from_double (gradient->stops[0].offset); + + colors[1].red = gradient->stops[0].color.red_short; + colors[1].green = gradient->stops[0].color.green_short; + colors[1].blue = gradient->stops[0].color.blue_short; + colors[1].alpha = gradient->stops[0].color.alpha_short; + } + + return stops; +} + +static cairo_xcb_picture_t * +_cairo_xcb_linear_picture (cairo_xcb_surface_t *target, + const cairo_linear_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + char buf[CAIRO_STACK_BUFFER_SIZE]; + xcb_render_fixed_t *stops; + xcb_render_color_t *colors; + xcb_render_pointfix_t p1, p2; + cairo_matrix_t matrix; + cairo_circle_double_t extremes[2]; + cairo_xcb_picture_t *picture; + cairo_status_t status; + unsigned int n_stops; + + _cairo_gradient_pattern_fit_to_range (&pattern->base, PIXMAN_MAX_INT >> 1, &matrix, extremes); + + picture = (cairo_xcb_picture_t *) + _cairo_xcb_screen_lookup_linear_picture (target->screen, pattern); + if (picture != NULL) + goto setup_picture; + + stops = _gradient_to_xcb (&pattern->base, &n_stops, buf, sizeof (buf)); + if (unlikely (stops == NULL)) + return (cairo_xcb_picture_t *) _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); + + picture = _cairo_xcb_picture_create (target->screen, + target->screen->connection->standard_formats[CAIRO_FORMAT_ARGB32], + PIXMAN_a8r8g8b8, + -1, -1); + if (unlikely (picture->base.status)) { + if (stops != (xcb_render_fixed_t *) buf) + free (stops); + return picture; + } + picture->filter = CAIRO_FILTER_DEFAULT; + + colors = (xcb_render_color_t *) (stops + n_stops); + + p1.x = _cairo_fixed_16_16_from_double (extremes[0].center.x); + p1.y = _cairo_fixed_16_16_from_double (extremes[0].center.y); + p2.x = _cairo_fixed_16_16_from_double (extremes[1].center.x); + p2.y = _cairo_fixed_16_16_from_double (extremes[1].center.y); + + _cairo_xcb_connection_render_create_linear_gradient (target->connection, + picture->picture, + p1, p2, + n_stops, + stops, colors); + + if (stops != (xcb_render_fixed_t *) buf) + free (stops); + + status = _cairo_xcb_screen_store_linear_picture (target->screen, + pattern, + &picture->base); + if (unlikely (status)) { + cairo_surface_destroy (&picture->base); + return (cairo_xcb_picture_t *) _cairo_surface_create_in_error (status); + } + +setup_picture: + _cairo_xcb_picture_set_matrix (picture, &matrix, + pattern->base.base.filter, + extents->x + extents->width/2., + extents->y + extents->height/2.); + _cairo_xcb_picture_set_filter (picture, pattern->base.base.filter); + _cairo_xcb_picture_set_extend (picture, pattern->base.base.extend); + _cairo_xcb_picture_set_component_alpha (picture, + pattern->base.base.has_component_alpha); + + return picture; +} + +static cairo_xcb_picture_t * +_cairo_xcb_radial_picture (cairo_xcb_surface_t *target, + const cairo_radial_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + char buf[CAIRO_STACK_BUFFER_SIZE]; + xcb_render_fixed_t *stops; + xcb_render_color_t *colors; + xcb_render_pointfix_t p1, p2; + xcb_render_fixed_t r1, r2; + cairo_matrix_t matrix; + cairo_circle_double_t extremes[2]; + cairo_xcb_picture_t *picture; + cairo_status_t status; + unsigned int n_stops; + + _cairo_gradient_pattern_fit_to_range (&pattern->base, PIXMAN_MAX_INT >> 1, &matrix, extremes); + + picture = (cairo_xcb_picture_t *) + _cairo_xcb_screen_lookup_radial_picture (target->screen, pattern); + if (picture != NULL) + goto setup_picture; + + stops = _gradient_to_xcb (&pattern->base, &n_stops, buf, sizeof (buf)); + if (unlikely (stops == NULL)) + return (cairo_xcb_picture_t *) _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); + + picture = _cairo_xcb_picture_create (target->screen, + target->screen->connection->standard_formats[CAIRO_FORMAT_ARGB32], + PIXMAN_a8r8g8b8, + -1, -1); + if (unlikely (picture->base.status)) { + if (stops != (xcb_render_fixed_t *) buf) + free (stops); + return picture; + } + picture->filter = CAIRO_FILTER_DEFAULT; + + colors = (xcb_render_color_t *) (stops + n_stops); + + p1.x = _cairo_fixed_16_16_from_double (extremes[0].center.x); + p1.y = _cairo_fixed_16_16_from_double (extremes[0].center.y); + p2.x = _cairo_fixed_16_16_from_double (extremes[1].center.x); + p2.y = _cairo_fixed_16_16_from_double (extremes[1].center.y); + + r1 = _cairo_fixed_16_16_from_double (extremes[0].radius); + r2 = _cairo_fixed_16_16_from_double (extremes[1].radius); + + _cairo_xcb_connection_render_create_radial_gradient (target->connection, + picture->picture, + p1, p2, r1, r2, + n_stops, + stops, colors); + + if (stops != (xcb_render_fixed_t *) buf) + free (stops); + + status = _cairo_xcb_screen_store_radial_picture (target->screen, + pattern, + &picture->base); + if (unlikely (status)) { + cairo_surface_destroy (&picture->base); + return (cairo_xcb_picture_t *) _cairo_surface_create_in_error (status); + } + +setup_picture: + _cairo_xcb_picture_set_matrix (picture, &matrix, + pattern->base.base.filter, + extents->x + extents->width/2., + extents->y + extents->height/2.); + _cairo_xcb_picture_set_filter (picture, pattern->base.base.filter); + _cairo_xcb_picture_set_extend (picture, pattern->base.base.extend); + _cairo_xcb_picture_set_component_alpha (picture, + pattern->base.base.has_component_alpha); + + return picture; +} + +static cairo_xcb_picture_t * +_copy_to_picture (cairo_xcb_surface_t *source) +{ + cairo_xcb_picture_t *picture; + uint32_t values[] = { 0, 1 }; + + if (source->deferred_clear) { + cairo_status_t status = _cairo_xcb_surface_clear (source); + if (unlikely (status)) + return (cairo_xcb_picture_t *) _cairo_surface_create_in_error (status); + } + + picture = _cairo_xcb_picture_create (source->screen, + source->xrender_format, + source->pixman_format, + source->width, + source->height); + if (unlikely (picture->base.status)) + return picture; + + _cairo_xcb_connection_render_create_picture (source->connection, + picture->picture, + source->drawable, + source->xrender_format, + XCB_RENDER_CP_GRAPHICS_EXPOSURE | + XCB_RENDER_CP_SUBWINDOW_MODE, + values); + + return picture; +} + +static void +_cairo_xcb_surface_setup_surface_picture(cairo_xcb_picture_t *picture, + const cairo_surface_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + cairo_filter_t filter; + + filter = pattern->base.filter; + if (filter != CAIRO_FILTER_NEAREST && + _cairo_matrix_is_pixel_exact (&pattern->base.matrix)) + { + filter = CAIRO_FILTER_NEAREST; + } + _cairo_xcb_picture_set_filter (picture, filter); + + _cairo_xcb_picture_set_matrix (picture, + &pattern->base.matrix, filter, + extents->x + extents->width/2., + extents->y + extents->height/2.); + + + _cairo_xcb_picture_set_extend (picture, pattern->base.extend); + _cairo_xcb_picture_set_component_alpha (picture, pattern->base.has_component_alpha); +} + +static cairo_xcb_picture_t * +record_to_picture (cairo_surface_t *target, + const cairo_surface_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + cairo_surface_pattern_t tmp_pattern; + cairo_xcb_picture_t *picture; + cairo_status_t status; + cairo_matrix_t matrix; + cairo_surface_t *tmp; + cairo_surface_t *source; + cairo_rectangle_int_t limit; + cairo_extend_t extend; + + /* XXX: The following was once more or less copied from cairo-xlibs-ource.c, + * record_source() and recording_pattern_get_surface(), can we share a + * single version? + */ + + /* First get the 'real' recording surface and figure out the size for tmp */ + source = _cairo_pattern_get_source (pattern, &limit); + assert (_cairo_surface_is_recording (source)); + + if (! _cairo_matrix_is_identity (&pattern->base.matrix)) { + double x1, y1, x2, y2; + + matrix = pattern->base.matrix; + status = cairo_matrix_invert (&matrix); + assert (status == CAIRO_STATUS_SUCCESS); + + x1 = limit.x; + y1 = limit.y; + x2 = limit.x + limit.width; + y2 = limit.y + limit.height; + + _cairo_matrix_transform_bounding_box (&matrix, + &x1, &y1, &x2, &y2, NULL); + + limit.x = floor (x1); + limit.y = floor (y1); + limit.width = ceil (x2) - limit.x; + limit.height = ceil (y2) - limit.y; + } + extend = pattern->base.extend; + if (_cairo_rectangle_contains_rectangle (&limit, extents)) + extend = CAIRO_EXTEND_NONE; + if (extend == CAIRO_EXTEND_NONE && ! _cairo_rectangle_intersect (&limit, extents)) + return _cairo_xcb_transparent_picture ((cairo_xcb_surface_t *) target); + + /* Now draw the recording surface to an xcb surface */ + tmp = _cairo_surface_create_scratch (target, + source->content, + limit.width, + limit.height, + CAIRO_COLOR_TRANSPARENT); + if (tmp->status != CAIRO_STATUS_SUCCESS) { + return (cairo_xcb_picture_t *) tmp; + } + + cairo_matrix_init_translate (&matrix, limit.x, limit.y); + cairo_matrix_multiply (&matrix, &matrix, &pattern->base.matrix); + + status = _cairo_recording_surface_replay_with_clip (source, + &matrix, tmp, + NULL); + if (unlikely (status)) { + cairo_surface_destroy (tmp); + return (cairo_xcb_picture_t *) _cairo_surface_create_in_error (status); + } + + /* Now that we have drawn this to an xcb surface, try again with that */ + _cairo_pattern_init_static_copy (&tmp_pattern.base, &pattern->base); + tmp_pattern.surface = tmp; + cairo_matrix_init_translate (&tmp_pattern.base.matrix, -limit.x, -limit.y); + + picture = _copy_to_picture ((cairo_xcb_surface_t *) tmp); + if (picture->base.status == CAIRO_STATUS_SUCCESS) + _cairo_xcb_surface_setup_surface_picture (picture, &tmp_pattern, extents); + cairo_surface_destroy (tmp); + return picture; +} + +static cairo_xcb_picture_t * +_cairo_xcb_surface_picture (cairo_xcb_surface_t *target, + const cairo_surface_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + cairo_surface_t *source = pattern->surface; + cairo_xcb_picture_t *picture; + + picture = (cairo_xcb_picture_t *) + _cairo_surface_has_snapshot (source, &_cairo_xcb_picture_backend); + if (picture != NULL) { + if (picture->screen == target->screen) { + picture = (cairo_xcb_picture_t *) cairo_surface_reference (&picture->base); + _cairo_xcb_surface_setup_surface_picture (picture, pattern, extents); + return picture; + } + picture = NULL; + } + + if (source->type == CAIRO_SURFACE_TYPE_XCB) + { + if (_cairo_surface_is_xcb(source)) { + cairo_xcb_surface_t *xcb = (cairo_xcb_surface_t *) source; + if (xcb->screen == target->screen && xcb->fallback == NULL) { + picture = _copy_to_picture ((cairo_xcb_surface_t *) source); + if (unlikely (picture->base.status)) + return picture; + } + } else if (source->backend->type == CAIRO_SURFACE_TYPE_SUBSURFACE) { + cairo_surface_subsurface_t *sub = (cairo_surface_subsurface_t *) source; + cairo_xcb_surface_t *xcb = (cairo_xcb_surface_t *) sub->target; + + /* XXX repeat interval with source clipping? */ + if (FALSE && xcb->screen == target->screen && xcb->fallback == NULL) { + xcb_rectangle_t rect; + + picture = _copy_to_picture (xcb); + if (unlikely (picture->base.status)) + return picture; + + rect.x = sub->extents.x; + rect.y = sub->extents.y; + rect.width = sub->extents.width; + rect.height = sub->extents.height; + + _cairo_xcb_connection_render_set_picture_clip_rectangles (xcb->connection, + picture->picture, + 0, 0, + 1, &rect); + picture->x0 = rect.x; + picture->y0 = rect.y; + picture->width = rect.width; + picture->height = rect.height; + } + } else if (_cairo_surface_is_snapshot (source)) { + cairo_surface_snapshot_t *snap = (cairo_surface_snapshot_t *) source; + cairo_xcb_surface_t *xcb = (cairo_xcb_surface_t *) snap->target; + + if (xcb->screen == target->screen && xcb->fallback == NULL) { + picture = _copy_to_picture (xcb); + if (unlikely (picture->base.status)) + return picture; + } + } + } +#if CAIRO_HAS_XLIB_XCB_FUNCTIONS + else if (source->type == CAIRO_SURFACE_TYPE_XLIB) + { + if (source->backend->type == CAIRO_SURFACE_TYPE_XLIB) { + cairo_xcb_surface_t *xcb = ((cairo_xlib_xcb_surface_t *) source)->xcb; + if (xcb->screen == target->screen && xcb->fallback == NULL) { + picture = _copy_to_picture (xcb); + if (unlikely (picture->base.status)) + return picture; + } + } else if (source->backend->type == CAIRO_SURFACE_TYPE_SUBSURFACE) { + cairo_surface_subsurface_t *sub = (cairo_surface_subsurface_t *) source; + cairo_xcb_surface_t *xcb = ((cairo_xlib_xcb_surface_t *) sub->target)->xcb; + + if (FALSE && xcb->screen == target->screen && xcb->fallback == NULL) { + xcb_rectangle_t rect; + + picture = _copy_to_picture (xcb); + if (unlikely (picture->base.status)) + return picture; + + rect.x = sub->extents.x; + rect.y = sub->extents.y; + rect.width = sub->extents.width; + rect.height = sub->extents.height; + + _cairo_xcb_connection_render_set_picture_clip_rectangles (xcb->connection, + picture->picture, + 0, 0, + 1, &rect); + picture->x0 = rect.x; + picture->y0 = rect.y; + picture->width = rect.width; + picture->height = rect.height; + } + } else if (_cairo_surface_is_snapshot (source)) { + cairo_surface_snapshot_t *snap = (cairo_surface_snapshot_t *) source; + cairo_xcb_surface_t *xcb = ((cairo_xlib_xcb_surface_t *) snap->target)->xcb; + + if (xcb->screen == target->screen && xcb->fallback == NULL) { + picture = _copy_to_picture (xcb); + if (unlikely (picture->base.status)) + return picture; + } + } + } +#endif + else if (source->type == CAIRO_SURFACE_TYPE_RECORDING) + { + /* We have to skip the call to attach_snapshot() because we possibly + * only drew part of the recording surface. + * TODO: When can we safely attach a snapshot? + */ + return record_to_picture(&target->base, pattern, extents); + } + + if (picture == NULL) { + cairo_image_surface_t *image; + void *image_extra; + cairo_status_t status; + + status = _cairo_surface_acquire_source_image (source, &image, &image_extra); + if (unlikely (status)) + return (cairo_xcb_picture_t *) _cairo_surface_create_in_error (status); + + if (image->format != CAIRO_FORMAT_INVALID && + image->format < ARRAY_LENGTH (target->screen->connection->standard_formats)) { + xcb_render_pictformat_t format; + + format = target->screen->connection->standard_formats[image->format]; + + picture = _picture_from_image (target, format, image, NULL); + _cairo_surface_release_source_image (source, image, image_extra); + } else { + cairo_image_surface_t *conv; + xcb_render_pictformat_t render_format; + + /* XXX XRenderPutImage! */ + + conv = _cairo_image_surface_coerce (image); + _cairo_surface_release_source_image (source, image, image_extra); + if (unlikely (conv->base.status)) + return (cairo_xcb_picture_t *) conv; + + render_format = target->screen->connection->standard_formats[conv->format]; + picture = _picture_from_image (target, render_format, conv, NULL); + cairo_surface_destroy (&conv->base); + } + + if (unlikely (picture->base.status)) + return picture; + } + + /* XXX: This causes too many problems and bugs, let's skip it for now. */ +#if 0 + _cairo_surface_attach_snapshot (source, + &picture->base, + NULL); +#endif + + _cairo_xcb_surface_setup_surface_picture (picture, pattern, extents); + return picture; +} + +static cairo_xcb_picture_t * +_cairo_xcb_picture_for_pattern (cairo_xcb_surface_t *target, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + if (pattern == NULL) + return _cairo_xcb_white_picture (target); + + if (! _pattern_is_supported (target->connection->flags, pattern)) + return _render_to_picture (target, pattern, extents); + + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + return _cairo_xcb_solid_picture (target, (cairo_solid_pattern_t *) pattern); + + case CAIRO_PATTERN_TYPE_LINEAR: + return _cairo_xcb_linear_picture (target, + (cairo_linear_pattern_t *) pattern, + extents); + + case CAIRO_PATTERN_TYPE_RADIAL: + return _cairo_xcb_radial_picture (target, + (cairo_radial_pattern_t *) pattern, + extents); + + case CAIRO_PATTERN_TYPE_SURFACE: + return _cairo_xcb_surface_picture (target, + (cairo_surface_pattern_t *) pattern, + extents); + default: + ASSERT_NOT_REACHED; + case CAIRO_PATTERN_TYPE_MESH: + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + return _render_to_picture (target, pattern, extents); + } +} + +COMPILE_TIME_ASSERT (sizeof (xcb_rectangle_t) <= sizeof (cairo_box_t)); + +static cairo_status_t +_render_fill_boxes (void *abstract_dst, + cairo_operator_t op, + const cairo_color_t *color, + cairo_boxes_t *boxes) +{ + cairo_xcb_surface_t *dst = abstract_dst; + xcb_rectangle_t stack_xrects[CAIRO_STACK_ARRAY_LENGTH (xcb_rectangle_t)]; + xcb_rectangle_t *xrects = stack_xrects; + xcb_render_color_t render_color; + int render_op = _render_operator (op); + struct _cairo_boxes_chunk *chunk; + int max_count; + + render_color.red = color->red_short; + render_color.green = color->green_short; + render_color.blue = color->blue_short; + render_color.alpha = color->alpha_short; + + max_count = 0; + for (chunk = &boxes->chunks; chunk != NULL; chunk = chunk->next) { + if (chunk->count > max_count) + max_count = chunk->count; + } + if (max_count > ARRAY_LENGTH (stack_xrects)) { + xrects = _cairo_malloc_ab (max_count, sizeof (xcb_rectangle_t)); + if (unlikely (xrects == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + for (chunk = &boxes->chunks; chunk != NULL; chunk = chunk->next) { + int i, j; + + for (i = j = 0; i < chunk->count; i++) { + int x1 = _cairo_fixed_integer_round_down (chunk->base[i].p1.x); + int y1 = _cairo_fixed_integer_round_down (chunk->base[i].p1.y); + int x2 = _cairo_fixed_integer_round_down (chunk->base[i].p2.x); + int y2 = _cairo_fixed_integer_round_down (chunk->base[i].p2.y); + + if (x2 > x1 && y2 > y1) { + xrects[j].x = x1; + xrects[j].y = y1; + xrects[j].width = x2 - x1; + xrects[j].height = y2 - y1; + j++; + } + } + + if (j) { + _cairo_xcb_connection_render_fill_rectangles + (dst->connection, + render_op, dst->picture, + render_color, j, xrects); + } + } + + if (xrects != stack_xrects) + free (xrects); + + return CAIRO_STATUS_SUCCESS; +} + +/* pixel aligned, non-overlapping boxes */ +static cairo_int_status_t +_render_composite_boxes (cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *src_pattern, + const cairo_pattern_t *mask_pattern, + const cairo_rectangle_int_t *extents, + const cairo_boxes_t *boxes) +{ + cairo_xcb_picture_t *src, *mask; + const struct _cairo_boxes_chunk *chunk; + xcb_rectangle_t stack_boxes[CAIRO_STACK_ARRAY_LENGTH (xcb_rectangle_t)]; + xcb_rectangle_t *clip_boxes; + cairo_rectangle_int_t stack_extents; + cairo_status_t status; + int num_boxes; + int render_op; + + render_op = _render_operator (op); + + if (src_pattern == NULL) { + src_pattern = mask_pattern; + mask_pattern = NULL; + } + + /* amalgamate into a single Composite call by setting a clip region */ + clip_boxes = stack_boxes; + if (boxes->num_boxes > ARRAY_LENGTH (stack_boxes)) { + clip_boxes = _cairo_malloc_ab (boxes->num_boxes, sizeof (xcb_rectangle_t)); + if (unlikely (clip_boxes == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + src = _cairo_xcb_picture_for_pattern (dst, src_pattern, extents); + status = src->base.status; + if (unlikely (status)) + goto cleanup_boxes; + + num_boxes = 0; + for (chunk = &boxes->chunks; chunk != NULL; chunk = chunk->next) { + const cairo_box_t *box = chunk->base; + int i; + + for (i = 0; i < chunk->count; i++) { + int x = _cairo_fixed_integer_round_down (box[i].p1.x); + int y = _cairo_fixed_integer_round_down (box[i].p1.y); + int width = _cairo_fixed_integer_round_down (box[i].p2.x) - x; + int height = _cairo_fixed_integer_round_down (box[i].p2.y) - y; + + if (width && height) { + clip_boxes[num_boxes].x = x; + clip_boxes[num_boxes].y = y; + clip_boxes[num_boxes].width = width; + clip_boxes[num_boxes].height = height; + num_boxes++; + } + } + } + + if (num_boxes) { + if (num_boxes > 1) { + _cairo_xcb_connection_render_set_picture_clip_rectangles (dst->connection, + dst->picture, + 0, 0, + num_boxes, + clip_boxes); + } else { + stack_extents.x = clip_boxes[0].x; + stack_extents.y = clip_boxes[0].y; + stack_extents.width = clip_boxes[0].width; + stack_extents.height = clip_boxes[0].height; + extents = &stack_extents; + } + + if (mask_pattern != NULL) { + mask = _cairo_xcb_picture_for_pattern (dst, mask_pattern, extents); + status = mask->base.status; + if (unlikely (status)) + goto cleanup_clip; + + _cairo_xcb_connection_render_composite (dst->connection, + render_op, + src->picture, + mask->picture, + dst->picture, + src->x + extents->x, src->y + extents->y, + mask->x + extents->x, mask->y + extents->y, + extents->x, extents->y, + extents->width, extents->height); + + cairo_surface_destroy (&mask->base); + } else { + _cairo_xcb_connection_render_composite (dst->connection, + render_op, + src->picture, + XCB_NONE, + dst->picture, + src->x + extents->x, src->y + extents->y, + 0, 0, + extents->x, extents->y, + extents->width, extents->height); + } + +cleanup_clip: + + if (num_boxes > 1) + _cairo_xcb_surface_clear_clip_region (dst); + } + + cairo_surface_destroy (&src->base); + +cleanup_boxes: + + if (clip_boxes != stack_boxes) + free (clip_boxes); + + return status; +} + + +#define CAIRO_FIXED_16_16_MIN _cairo_fixed_from_int (-32768) +#define CAIRO_FIXED_16_16_MAX _cairo_fixed_from_int (32767) + +static cairo_bool_t +_line_exceeds_16_16 (const cairo_line_t *line) +{ + return + line->p1.x <= CAIRO_FIXED_16_16_MIN || + line->p1.x >= CAIRO_FIXED_16_16_MAX || + + line->p2.x <= CAIRO_FIXED_16_16_MIN || + line->p2.x >= CAIRO_FIXED_16_16_MAX || + + line->p1.y <= CAIRO_FIXED_16_16_MIN || + line->p1.y >= CAIRO_FIXED_16_16_MAX || + + line->p2.y <= CAIRO_FIXED_16_16_MIN || + line->p2.y >= CAIRO_FIXED_16_16_MAX; +} + +static void +_project_line_x_onto_16_16 (const cairo_line_t *line, + cairo_fixed_t top, + cairo_fixed_t bottom, + xcb_render_linefix_t *out) +{ + cairo_point_double_t p1, p2; + double m; + + p1.x = _cairo_fixed_to_double (line->p1.x); + p1.y = _cairo_fixed_to_double (line->p1.y); + + p2.x = _cairo_fixed_to_double (line->p2.x); + p2.y = _cairo_fixed_to_double (line->p2.y); + + m = (p2.x - p1.x) / (p2.y - p1.y); + out->p1.x = _cairo_fixed_16_16_from_double (p1.x + m * _cairo_fixed_to_double (top - line->p1.y)); + out->p2.x = _cairo_fixed_16_16_from_double (p1.x + m * _cairo_fixed_to_double (bottom - line->p1.y)); +} + +typedef struct { + cairo_traps_t traps; + cairo_antialias_t antialias; +} composite_traps_info_t; + +COMPILE_TIME_ASSERT (sizeof (xcb_render_trapezoid_t) <= sizeof (cairo_trapezoid_t)); + +static cairo_int_status_t +_composite_traps (void *closure, + cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *pattern, + int dst_x, int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + composite_traps_info_t *info = closure; + const cairo_traps_t *traps = &info->traps; + cairo_xcb_picture_t *src; + cairo_format_t format; + xcb_render_pictformat_t xrender_format; + xcb_render_trapezoid_t *xtraps; + int render_reference_x, render_reference_y; + cairo_status_t status; + int i; + + if (dst->deferred_clear) { + status = _cairo_xcb_surface_clear (dst); + if (unlikely (status)) + return status; + } + + src = _cairo_xcb_picture_for_pattern (dst, pattern, extents); + if (unlikely (src->base.status)) + return src->base.status; + + if (info->antialias == CAIRO_ANTIALIAS_NONE) + format = CAIRO_FORMAT_A1; + else + format = CAIRO_FORMAT_A8; + xrender_format = dst->screen->connection->standard_formats[format]; + + xtraps = (xcb_render_trapezoid_t *) traps->traps; + for (i = 0; i < traps->num_traps; i++) { + cairo_trapezoid_t t = traps->traps[i]; + + /* top/bottom will be clamped to surface bounds */ + xtraps[i].top = _cairo_fixed_to_16_16 (t.top); + xtraps[i].top -= dst_y << 16; + xtraps[i].bottom = _cairo_fixed_to_16_16 (t.bottom); + xtraps[i].bottom -= dst_y << 16; + + /* However, all the other coordinates will have been left untouched so + * as not to introduce numerical error. Recompute them if they + * exceed the 16.16 limits. + */ + if (unlikely (_line_exceeds_16_16 (&t.left))) { + _project_line_x_onto_16_16 (&t.left, + t.top, + t.bottom, + &xtraps[i].left); + xtraps[i].left.p1.y = xtraps[i].top; + xtraps[i].left.p2.y = xtraps[i].bottom; + } else { + xtraps[i].left.p1.x = _cairo_fixed_to_16_16 (t.left.p1.x); + xtraps[i].left.p1.y = _cairo_fixed_to_16_16 (t.left.p1.y); + xtraps[i].left.p2.x = _cairo_fixed_to_16_16 (t.left.p2.x); + xtraps[i].left.p2.y = _cairo_fixed_to_16_16 (t.left.p2.y); + } + xtraps[i].left.p1.x -= dst_x << 16; + xtraps[i].left.p1.y -= dst_y << 16; + xtraps[i].left.p2.x -= dst_x << 16; + xtraps[i].left.p2.y -= dst_y << 16; + + if (unlikely (_line_exceeds_16_16 (&t.right))) { + _project_line_x_onto_16_16 (&t.right, + t.top, + t.bottom, + &xtraps[i].right); + xtraps[i].right.p1.y = xtraps[i].top; + xtraps[i].right.p2.y = xtraps[i].bottom; + } else { + xtraps[i].right.p1.x = _cairo_fixed_to_16_16 (t.right.p1.x); + xtraps[i].right.p1.y = _cairo_fixed_to_16_16 (t.right.p1.y); + xtraps[i].right.p2.x = _cairo_fixed_to_16_16 (t.right.p2.x); + xtraps[i].right.p2.y = _cairo_fixed_to_16_16 (t.right.p2.y); + } + xtraps[i].right.p1.x -= dst_x << 16; + xtraps[i].right.p1.y -= dst_y << 16; + xtraps[i].right.p2.x -= dst_x << 16; + xtraps[i].right.p2.y -= dst_y << 16; + } + + if (xtraps[0].left.p1.y < xtraps[0].left.p2.y) { + render_reference_x = xtraps[0].left.p1.x >> 16; + render_reference_y = xtraps[0].left.p1.y >> 16; + } else { + render_reference_x = xtraps[0].left.p2.x >> 16; + render_reference_y = xtraps[0].left.p2.y >> 16; + } + render_reference_x += src->x + dst_x; + render_reference_y += src->y + dst_y; + + _cairo_xcb_surface_set_precision (dst, info->antialias); + _cairo_xcb_connection_render_trapezoids (dst->connection, + _render_operator (op), + src->picture, + dst->picture, + xrender_format, + render_reference_x, + render_reference_y, + traps->num_traps, xtraps); + + cairo_surface_destroy (&src->base); + + return CAIRO_STATUS_SUCCESS; +} + +/* low-level composite driver */ + +static cairo_xcb_surface_t * +get_clip_surface (const cairo_clip_t *clip, + cairo_xcb_surface_t *target, + int *tx, int *ty) +{ + cairo_surface_t *surface; + cairo_status_t status; + + surface = _cairo_surface_create_scratch (&target->base, + CAIRO_CONTENT_ALPHA, + clip->extents.width, + clip->extents.height, + CAIRO_COLOR_WHITE); + if (unlikely (surface->status)) + return (cairo_xcb_surface_t *) surface; + + assert (surface->backend == &_cairo_xcb_surface_backend); + status = _cairo_clip_combine_with_surface (clip, surface, + clip->extents.x, clip->extents.y); + if (unlikely (status)) { + cairo_surface_destroy (surface); + surface = _cairo_surface_create_in_error (status); + } + + *tx = clip->extents.x; + *ty = clip->extents.y; + + return (cairo_xcb_surface_t *) surface; +} + +typedef cairo_int_status_t +(*xcb_draw_func_t) (void *closure, + cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *src, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip); + +static void do_unaligned_row(void (*blt)(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage), + void *closure, + const cairo_box_t *b, + int tx, int y, int h, + uint16_t coverage) +{ + int x1 = _cairo_fixed_integer_part (b->p1.x) - tx; + int x2 = _cairo_fixed_integer_part (b->p2.x) - tx; + if (x2 > x1) { + if (! _cairo_fixed_is_integer (b->p1.x)) { + blt(closure, x1, y, 1, h, + coverage * (256 - _cairo_fixed_fractional_part (b->p1.x))); + x1++; + } + + if (x2 > x1) + blt(closure, x1, y, x2-x1, h, (coverage << 8) - (coverage >> 8)); + + if (! _cairo_fixed_is_integer (b->p2.x)) + blt(closure, x2, y, 1, h, + coverage * _cairo_fixed_fractional_part (b->p2.x)); + } else + blt(closure, x1, y, 1, h, + coverage * (b->p2.x - b->p1.x)); +} + +static void do_unaligned_box(void (*blt)(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage), + void *closure, + const cairo_box_t *b, int tx, int ty) +{ + int y1 = _cairo_fixed_integer_part (b->p1.y) - ty; + int y2 = _cairo_fixed_integer_part (b->p2.y) - ty; + if (y2 > y1) { + if (! _cairo_fixed_is_integer (b->p1.y)) { + do_unaligned_row(blt, closure, b, tx, y1, 1, + 256 - _cairo_fixed_fractional_part (b->p1.y)); + y1++; + } + + if (y2 > y1) + do_unaligned_row(blt, closure, b, tx, y1, y2-y1, 256); + + if (! _cairo_fixed_is_integer (b->p2.y)) + do_unaligned_row(blt, closure, b, tx, y2, 1, + _cairo_fixed_fractional_part (b->p2.y)); + } else + do_unaligned_row(blt, closure, b, tx, y1, 1, + b->p2.y - b->p1.y); +} + + +static void blt_in(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage) +{ + cairo_xcb_surface_t *mask = closure; + xcb_render_color_t color; + xcb_rectangle_t rect; + + if (coverage == 0xffff) + return; + + color.red = color.green = color.blue = 0; + color.alpha = coverage; + + rect.x = x; + rect.y = y; + rect.width = w; + rect.height = h; + + _cairo_xcb_connection_render_fill_rectangles (mask->connection, + XCB_RENDER_PICT_OP_IN, + mask->picture, + color, 1, &rect); +} + +static cairo_xcb_surface_t * +_create_composite_mask (cairo_clip_t *clip, + xcb_draw_func_t draw_func, + xcb_draw_func_t mask_func, + void *draw_closure, + cairo_xcb_surface_t *dst, + const cairo_rectangle_int_t*extents) +{ + cairo_xcb_surface_t *surface; + cairo_bool_t need_clip_combine; + cairo_int_status_t status; + + surface = (cairo_xcb_surface_t *) + _cairo_xcb_surface_create_similar (dst, CAIRO_CONTENT_ALPHA, + extents->width, extents->height); + if (unlikely (surface->base.status)) + return surface; + + _cairo_xcb_surface_ensure_picture (surface); + + surface->deferred_clear_color = *CAIRO_COLOR_TRANSPARENT; + surface->deferred_clear = TRUE; + surface->base.is_clear = TRUE; + + if (mask_func) { + status = mask_func (draw_closure, surface, + CAIRO_OPERATOR_ADD, NULL, + extents->x, extents->y, + extents, clip); + if (likely (status != CAIRO_INT_STATUS_UNSUPPORTED)) + return surface; + } + + /* Is it worth setting the clip region here? */ + status = draw_func (draw_closure, surface, + CAIRO_OPERATOR_ADD, NULL, + extents->x, extents->y, + extents, NULL); + if (unlikely (status)) { + cairo_surface_destroy (&surface->base); + return (cairo_xcb_surface_t *) _cairo_surface_create_in_error (status); + } + + if (surface->connection->flags & CAIRO_XCB_RENDER_HAS_FILL_RECTANGLES) { + int i; + + for (i = 0; i < clip->num_boxes; i++) { + cairo_box_t *b = &clip->boxes[i]; + + if (! _cairo_fixed_is_integer (b->p1.x) || + ! _cairo_fixed_is_integer (b->p1.y) || + ! _cairo_fixed_is_integer (b->p2.x) || + ! _cairo_fixed_is_integer (b->p2.y)) + { + do_unaligned_box(blt_in, surface, b, extents->x, extents->y); + } + } + + need_clip_combine = clip->path != NULL; + } else + need_clip_combine = ! _cairo_clip_is_region (clip); + + if (need_clip_combine) { + status = _cairo_clip_combine_with_surface (clip, &surface->base, + extents->x, extents->y); + if (unlikely (status)) { + cairo_surface_destroy (&surface->base); + return (cairo_xcb_surface_t *) _cairo_surface_create_in_error (status); + } + } + + return surface; +} + +/* Handles compositing with a clip surface when the operator allows + * us to combine the clip with the mask + */ +static cairo_status_t +_clip_and_composite_with_mask (cairo_clip_t *clip, + cairo_operator_t op, + const cairo_pattern_t *pattern, + xcb_draw_func_t draw_func, + xcb_draw_func_t mask_func, + void *draw_closure, + cairo_xcb_surface_t *dst, + const cairo_rectangle_int_t*extents) +{ + cairo_xcb_surface_t *mask; + cairo_xcb_picture_t *src; + + mask = _create_composite_mask (clip, + draw_func, mask_func, draw_closure, + dst, extents); + if (unlikely (mask->base.status)) + return mask->base.status; + + if (pattern != NULL || dst->base.content != CAIRO_CONTENT_ALPHA) { + src = _cairo_xcb_picture_for_pattern (dst, pattern, extents); + if (unlikely (src->base.status)) { + cairo_surface_destroy (&mask->base); + return src->base.status; + } + + _cairo_xcb_connection_render_composite (dst->connection, + _render_operator (op), + src->picture, + mask->picture, + dst->picture, + extents->x + src->x, extents->y + src->y, + 0, 0, + extents->x, extents->y, + extents->width, extents->height); + + cairo_surface_destroy (&src->base); + } else { + _cairo_xcb_connection_render_composite (dst->connection, + _render_operator (op), + mask->picture, + XCB_NONE, + dst->picture, + 0, 0, + 0, 0, + extents->x, extents->y, + extents->width, extents->height); + } + cairo_surface_destroy (&mask->base); + + return CAIRO_STATUS_SUCCESS; +} + +/* Handles compositing with a clip surface when we have to do the operation + * in two pieces and combine them together. + */ +static cairo_status_t +_clip_and_composite_combine (cairo_clip_t *clip, + cairo_operator_t op, + const cairo_pattern_t *pattern, + xcb_draw_func_t draw_func, + void *draw_closure, + cairo_xcb_surface_t *dst, + const cairo_rectangle_int_t*extents) +{ + cairo_xcb_surface_t *tmp; + cairo_xcb_surface_t *clip_surface; + int clip_x = 0, clip_y = 0; + xcb_render_picture_t clip_picture; + cairo_status_t status; + + tmp = (cairo_xcb_surface_t *) + _cairo_xcb_surface_create_similar (dst, dst->base.content, + extents->width, extents->height); + if (unlikely (tmp->base.status)) + return tmp->base.status; + + /* create_similar() could have done a fallback to an image surface */ + assert (tmp->base.backend == &_cairo_xcb_surface_backend); + + _cairo_xcb_surface_ensure_picture (tmp); + + if (pattern == NULL) { + status = (*draw_func) (draw_closure, tmp, + CAIRO_OPERATOR_ADD, NULL, + extents->x, extents->y, + extents, NULL); + } else { + /* Initialize the temporary surface from the destination surface */ + if (! dst->base.is_clear || + (dst->connection->flags & CAIRO_XCB_RENDER_HAS_FILL_RECTANGLES) == 0) + { + /* XCopyArea may actually be quicker here. + * A good driver should translate if appropriate. + */ + _cairo_xcb_connection_render_composite (dst->connection, + XCB_RENDER_PICT_OP_SRC, + dst->picture, + XCB_NONE, + tmp->picture, + extents->x, extents->y, + 0, 0, + 0, 0, + extents->width, extents->height); + } + else + { + xcb_render_color_t clear; + xcb_rectangle_t xrect; + + clear.red = clear.green = clear.blue = clear.alpha = 0; + + xrect.x = xrect.y = 0; + xrect.width = extents->width; + xrect.height = extents->height; + + _cairo_xcb_connection_render_fill_rectangles (dst->connection, + XCB_RENDER_PICT_OP_CLEAR, + dst->picture, + clear, 1, &xrect); + } + + status = (*draw_func) (draw_closure, tmp, op, pattern, + extents->x, extents->y, + extents, NULL); + } + if (unlikely (status)) + goto CLEANUP_SURFACE; + + clip_surface = get_clip_surface (clip, dst, &clip_x, &clip_y); + status = clip_surface->base.status; + if (unlikely (status)) + goto CLEANUP_SURFACE; + + assert (clip_surface->base.backend == &_cairo_xcb_surface_backend); + clip_picture = clip_surface->picture; + assert (clip_picture != XCB_NONE); + + if (dst->base.is_clear) { + _cairo_xcb_connection_render_composite (dst->connection, + XCB_RENDER_PICT_OP_SRC, + tmp->picture, clip_picture, dst->picture, + 0, 0, + 0, 0, + extents->x, extents->y, + extents->width, extents->height); + } else { + /* Punch the clip out of the destination */ + _cairo_xcb_connection_render_composite (dst->connection, + XCB_RENDER_PICT_OP_OUT_REVERSE, + clip_picture, XCB_NONE, dst->picture, + extents->x - clip_x, + extents->y - clip_y, + 0, 0, + extents->x, extents->y, + extents->width, extents->height); + + /* Now add the two results together */ + _cairo_xcb_connection_render_composite (dst->connection, + XCB_RENDER_PICT_OP_ADD, + tmp->picture, clip_picture, dst->picture, + 0, 0, + extents->x - clip_x, + extents->y - clip_y, + extents->x, extents->y, + extents->width, extents->height); + } + cairo_surface_destroy (&clip_surface->base); + + CLEANUP_SURFACE: + cairo_surface_destroy (&tmp->base); + + return status; +} + +/* Handles compositing for %CAIRO_OPERATOR_SOURCE, which is special; it's + * defined as (src IN mask IN clip) ADD (dst OUT (mask IN clip)) + */ +static cairo_status_t +_clip_and_composite_source (cairo_clip_t *clip, + const cairo_pattern_t *pattern, + xcb_draw_func_t draw_func, + xcb_draw_func_t mask_func, + void *draw_closure, + cairo_xcb_surface_t *dst, + const cairo_rectangle_int_t *extents) +{ + cairo_xcb_surface_t *mask; + cairo_xcb_picture_t *src; + + /* Create a surface that is mask IN clip */ + mask = _create_composite_mask (clip, + draw_func, mask_func, draw_closure, + dst, extents); + if (unlikely (mask->base.status)) + return mask->base.status; + + src = _cairo_xcb_picture_for_pattern (dst, pattern, extents); + if (unlikely (src->base.status)) { + cairo_surface_destroy (&mask->base); + return src->base.status; + } + + if (dst->base.is_clear) { + _cairo_xcb_connection_render_composite (dst->connection, + XCB_RENDER_PICT_OP_SRC, + src->picture, + mask->picture, + dst->picture, + extents->x + src->x, extents->y + src->y, + 0, 0, + extents->x, extents->y, + extents->width, extents->height); + } else { + /* Compute dest' = dest OUT (mask IN clip) */ + _cairo_xcb_connection_render_composite (dst->connection, + XCB_RENDER_PICT_OP_OUT_REVERSE, + mask->picture, + XCB_NONE, + dst->picture, + 0, 0, 0, 0, + extents->x, extents->y, + extents->width, extents->height); + + /* Now compute (src IN (mask IN clip)) ADD dest' */ + _cairo_xcb_connection_render_composite (dst->connection, + XCB_RENDER_PICT_OP_ADD, + src->picture, + mask->picture, + dst->picture, + extents->x + src->x, extents->y + src->y, + 0, 0, + extents->x, extents->y, + extents->width, extents->height); + } + + cairo_surface_destroy (&src->base); + cairo_surface_destroy (&mask->base); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +can_reduce_alpha_op (cairo_operator_t op) +{ + int iop = op; + switch (iop) { + case CAIRO_OPERATOR_OVER: + case CAIRO_OPERATOR_SOURCE: + case CAIRO_OPERATOR_ADD: + return TRUE; + default: + return FALSE; + } +} + +static cairo_bool_t +reduce_alpha_op (cairo_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *pattern) +{ + return dst->is_clear && + dst->content == CAIRO_CONTENT_ALPHA && + _cairo_pattern_is_opaque_solid (pattern) && + can_reduce_alpha_op (op); +} + +static cairo_status_t +_cairo_xcb_surface_fixup_unbounded (cairo_xcb_surface_t *dst, + const cairo_composite_rectangles_t *rects) +{ + xcb_rectangle_t xrects[4]; + int n; + + if (rects->bounded.width == rects->unbounded.width && + rects->bounded.height == rects->unbounded.height) + { + return CAIRO_STATUS_SUCCESS; + } + + n = 0; + if (rects->bounded.width == 0 || rects->bounded.height == 0) { + xrects[n].x = rects->unbounded.x; + xrects[n].width = rects->unbounded.width; + xrects[n].y = rects->unbounded.y; + xrects[n].height = rects->unbounded.height; + n++; + } else { + /* top */ + if (rects->bounded.y != rects->unbounded.y) { + xrects[n].x = rects->unbounded.x; + xrects[n].width = rects->unbounded.width; + xrects[n].y = rects->unbounded.y; + xrects[n].height = rects->bounded.y - rects->unbounded.y; + n++; + } + /* left */ + if (rects->bounded.x != rects->unbounded.x) { + xrects[n].x = rects->unbounded.x; + xrects[n].width = rects->bounded.x - rects->unbounded.x; + xrects[n].y = rects->bounded.y; + xrects[n].height = rects->bounded.height; + n++; + } + /* right */ + if (rects->bounded.x + rects->bounded.width != rects->unbounded.x + rects->unbounded.width) { + xrects[n].x = rects->bounded.x + rects->bounded.width; + xrects[n].width = rects->unbounded.x + rects->unbounded.width - xrects[n].x; + xrects[n].y = rects->bounded.y; + xrects[n].height = rects->bounded.height; + n++; + } + /* bottom */ + if (rects->bounded.y + rects->bounded.height != rects->unbounded.y + rects->unbounded.height) { + xrects[n].x = rects->unbounded.x; + xrects[n].width = rects->unbounded.width; + xrects[n].y = rects->bounded.y + rects->bounded.height; + xrects[n].height = rects->unbounded.y + rects->unbounded.height - xrects[n].y; + n++; + } + } + + if (dst->connection->flags & CAIRO_XCB_RENDER_HAS_FILL_RECTANGLES) { + xcb_render_color_t color; + + color.red = 0; + color.green = 0; + color.blue = 0; + color.alpha = 0; + + _cairo_xcb_connection_render_fill_rectangles (dst->connection, + XCB_RENDER_PICT_OP_CLEAR, + dst->picture, + color, n, xrects); + } else { + int i; + cairo_xcb_picture_t *src; + + src = _cairo_xcb_transparent_picture (dst); + if (unlikely (src->base.status)) + return src->base.status; + + for (i = 0; i < n; i++) { + _cairo_xcb_connection_render_composite (dst->connection, + XCB_RENDER_PICT_OP_CLEAR, + src->picture, XCB_NONE, dst->picture, + 0, 0, + 0, 0, + xrects[i].x, xrects[i].y, + xrects[i].width, xrects[i].height); + } + cairo_surface_destroy (&src->base); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_xcb_surface_fixup_unbounded_with_mask (cairo_xcb_surface_t *dst, + const cairo_composite_rectangles_t *rects, + cairo_clip_t *clip) +{ + cairo_xcb_surface_t *mask; + int mask_x = 0, mask_y = 0; + + mask = get_clip_surface (clip, dst, &mask_x, &mask_y); + if (unlikely (mask->base.status)) + return mask->base.status; + + /* top */ + if (rects->bounded.y != rects->unbounded.y) { + int x = rects->unbounded.x; + int y = rects->unbounded.y; + int width = rects->unbounded.width; + int height = rects->bounded.y - y; + + _cairo_xcb_connection_render_composite (dst->connection, + XCB_RENDER_PICT_OP_OUT_REVERSE, + mask->picture, XCB_NONE, dst->picture, + x - mask_x, y - mask_y, + 0, 0, + x, y, + width, height); + } + + /* left */ + if (rects->bounded.x != rects->unbounded.x) { + int x = rects->unbounded.x; + int y = rects->bounded.y; + int width = rects->bounded.x - x; + int height = rects->bounded.height; + + _cairo_xcb_connection_render_composite (dst->connection, + XCB_RENDER_PICT_OP_OUT_REVERSE, + mask->picture, XCB_NONE, dst->picture, + x - mask_x, y - mask_y, + 0, 0, + x, y, + width, height); + } + + /* right */ + if (rects->bounded.x + rects->bounded.width != rects->unbounded.x + rects->unbounded.width) { + int x = rects->bounded.x + rects->bounded.width; + int y = rects->bounded.y; + int width = rects->unbounded.x + rects->unbounded.width - x; + int height = rects->bounded.height; + + _cairo_xcb_connection_render_composite (dst->connection, + XCB_RENDER_PICT_OP_OUT_REVERSE, + mask->picture, XCB_NONE, dst->picture, + x - mask_x, y - mask_y, + 0, 0, + x, y, + width, height); + } + + /* bottom */ + if (rects->bounded.y + rects->bounded.height != rects->unbounded.y + rects->unbounded.height) { + int x = rects->unbounded.x; + int y = rects->bounded.y + rects->bounded.height; + int width = rects->unbounded.width; + int height = rects->unbounded.y + rects->unbounded.height - y; + + _cairo_xcb_connection_render_composite (dst->connection, + XCB_RENDER_PICT_OP_OUT_REVERSE, + mask->picture, XCB_NONE, dst->picture, + x - mask_x, y - mask_y, + 0, 0, + x, y, + width, height); + } + + cairo_surface_destroy (&mask->base); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_xcb_surface_fixup_unbounded_boxes (cairo_xcb_surface_t *dst, + const cairo_composite_rectangles_t *extents, + cairo_clip_t *clip, + cairo_boxes_t *boxes) +{ + cairo_boxes_t clear; + cairo_box_t box; + cairo_status_t status; + struct _cairo_boxes_chunk *chunk; + int i; + + if (boxes->num_boxes <= 1 && clip == NULL) + return _cairo_xcb_surface_fixup_unbounded (dst, extents); + + _cairo_boxes_init (&clear); + + box.p1.x = _cairo_fixed_from_int (extents->unbounded.x + extents->unbounded.width); + box.p1.y = _cairo_fixed_from_int (extents->unbounded.y); + box.p2.x = _cairo_fixed_from_int (extents->unbounded.x); + box.p2.y = _cairo_fixed_from_int (extents->unbounded.y + extents->unbounded.height); + + if (clip == NULL) { + cairo_boxes_t tmp; + + _cairo_boxes_init (&tmp); + + status = _cairo_boxes_add (&tmp, CAIRO_ANTIALIAS_DEFAULT, &box); + assert (status == CAIRO_STATUS_SUCCESS); + + tmp.chunks.next = &boxes->chunks; + tmp.num_boxes += boxes->num_boxes; + + status = _cairo_bentley_ottmann_tessellate_boxes (&tmp, + CAIRO_FILL_RULE_WINDING, + &clear); + + tmp.chunks.next = NULL; + } else { + _cairo_boxes_init_with_clip (&clear, clip); + + status = _cairo_boxes_add (&clear, CAIRO_ANTIALIAS_DEFAULT, &box); + assert (status == CAIRO_STATUS_SUCCESS); + + for (chunk = &boxes->chunks; chunk != NULL; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + status = _cairo_boxes_add (&clear, + CAIRO_ANTIALIAS_DEFAULT, + &chunk->base[i]); + if (unlikely (status)) { + _cairo_boxes_fini (&clear); + return status; + } + } + } + + status = _cairo_bentley_ottmann_tessellate_boxes (&clear, + CAIRO_FILL_RULE_WINDING, + &clear); + } + + if (likely (status == CAIRO_STATUS_SUCCESS)) { + if (dst->connection->flags & CAIRO_XCB_RENDER_HAS_FILL_RECTANGLES) + status = _render_fill_boxes (dst, + CAIRO_OPERATOR_CLEAR, + CAIRO_COLOR_TRANSPARENT, + &clear); + else + status = _cairo_xcb_surface_core_fill_boxes (dst, + CAIRO_COLOR_TRANSPARENT, + &clear); + } + + _cairo_boxes_fini (&clear); + + return status; +} + +cairo_status_t +_cairo_xcb_surface_clear (cairo_xcb_surface_t *dst) +{ + xcb_gcontext_t gc; + xcb_rectangle_t rect; + cairo_status_t status; + + status = _cairo_xcb_connection_acquire (dst->connection); + if (unlikely (status)) + return status; + + rect.x = rect.y = 0; + rect.width = dst->width; + rect.height = dst->height; + + if (dst->connection->flags & CAIRO_XCB_RENDER_HAS_FILL_RECTANGLES) { + xcb_render_color_t color; + uint8_t op; + + color.red = dst->deferred_clear_color.red_short; + color.green = dst->deferred_clear_color.green_short; + color.blue = dst->deferred_clear_color.blue_short; + color.alpha = dst->deferred_clear_color.alpha_short; + + if (color.alpha == 0) + op = XCB_RENDER_PICT_OP_CLEAR; + else + op = XCB_RENDER_PICT_OP_SRC; + + _cairo_xcb_surface_ensure_picture (dst); + _cairo_xcb_connection_render_fill_rectangles (dst->connection, + op, dst->picture, color, + 1, &rect); + } else { + gc = _cairo_xcb_screen_get_gc (dst->screen, dst->drawable, dst->depth); + + /* XXX color */ + _cairo_xcb_connection_poly_fill_rectangle (dst->connection, + dst->drawable, gc, + 1, &rect); + + _cairo_xcb_screen_put_gc (dst->screen, dst->depth, gc); + } + + _cairo_xcb_connection_release (dst->connection); + + dst->deferred_clear = FALSE; + return CAIRO_STATUS_SUCCESS; +} + +enum { + NEED_CLIP_REGION = 0x1, + NEED_CLIP_SURFACE = 0x2, + FORCE_CLIP_REGION = 0x4, +}; + +static cairo_bool_t +need_bounded_clip (cairo_composite_rectangles_t *extents) +{ + unsigned int flags = NEED_CLIP_REGION; + if (! _cairo_clip_is_region (extents->clip)) + flags |= NEED_CLIP_SURFACE; + return flags; +} + +static cairo_bool_t +need_unbounded_clip (cairo_composite_rectangles_t *extents) +{ + unsigned int flags = 0; + if (! extents->is_bounded) { + flags |= NEED_CLIP_REGION; + if (! _cairo_clip_is_region (extents->clip)) + flags |= NEED_CLIP_SURFACE; + } + if (extents->clip->path != NULL) + flags |= NEED_CLIP_SURFACE; + return flags; +} + +static cairo_status_t +_clip_and_composite (cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *src, + xcb_draw_func_t draw_func, + xcb_draw_func_t mask_func, + void *draw_closure, + cairo_composite_rectangles_t*extents, + unsigned int need_clip) +{ + cairo_region_t *clip_region = NULL; + cairo_status_t status; + + status = _cairo_xcb_connection_acquire (dst->connection); + if (unlikely (status)) + return status; + + if (dst->deferred_clear) { + status = _cairo_xcb_surface_clear (dst); + if (unlikely (status)) { + _cairo_xcb_connection_release (dst->connection); + return status; + } + } + + _cairo_xcb_surface_ensure_picture (dst); + + if (need_clip & NEED_CLIP_REGION) { + clip_region = _cairo_clip_get_region (extents->clip); + if ((need_clip & FORCE_CLIP_REGION) == 0 && clip_region != NULL && + cairo_region_contains_rectangle (clip_region, + &extents->unbounded) == CAIRO_REGION_OVERLAP_IN) + clip_region = NULL; + if (clip_region != NULL) { + status = _cairo_xcb_surface_set_clip_region (dst, clip_region); + if (unlikely (status)) { + _cairo_xcb_connection_release (dst->connection); + return status; + } + } + } + + if (reduce_alpha_op (&dst->base, op, src)) { + op = CAIRO_OPERATOR_ADD; + src = NULL; + } + + if (extents->bounded.width != 0 && extents->bounded.height != 0) { + if (op == CAIRO_OPERATOR_SOURCE) { + status = _clip_and_composite_source (extents->clip, src, + draw_func, mask_func, draw_closure, + dst, &extents->bounded); + } else { + if (op == CAIRO_OPERATOR_CLEAR) { + op = CAIRO_OPERATOR_DEST_OUT; + src = NULL; + } + + if (need_clip & NEED_CLIP_SURFACE) { + if (extents->is_bounded) { + status = _clip_and_composite_with_mask (extents->clip, op, src, + draw_func, + mask_func, + draw_closure, + dst, &extents->bounded); + } else { + status = _clip_and_composite_combine (extents->clip, op, src, + draw_func, draw_closure, + dst, &extents->bounded); + } + } else { + status = draw_func (draw_closure, + dst, op, src, + 0, 0, + &extents->bounded, + extents->clip); + } + } + } + + if (status == CAIRO_STATUS_SUCCESS && ! extents->is_bounded) { + if (need_clip & NEED_CLIP_SURFACE) + status = _cairo_xcb_surface_fixup_unbounded_with_mask (dst, extents, extents->clip); + else + status = _cairo_xcb_surface_fixup_unbounded (dst, extents); + } + + if (clip_region) + _cairo_xcb_surface_clear_clip_region (dst); + + _cairo_xcb_connection_release (dst->connection); + + return status; +} + +static cairo_status_t +_core_boxes (cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *src, + cairo_boxes_t *boxes, + const cairo_composite_rectangles_t *extents) +{ + if (! boxes->is_pixel_aligned) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (! _cairo_clip_is_region (extents->clip)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (op == CAIRO_OPERATOR_CLEAR) + return _cairo_xcb_surface_core_fill_boxes (dst, CAIRO_COLOR_TRANSPARENT, boxes); + + if (op == CAIRO_OPERATOR_OVER) { + if (dst->base.is_clear || _cairo_pattern_is_opaque (src, &extents->bounded)) + op = CAIRO_OPERATOR_SOURCE; + } + if (op != CAIRO_OPERATOR_SOURCE) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (src->type == CAIRO_PATTERN_TYPE_SOLID) { + return _cairo_xcb_surface_core_fill_boxes (dst, + &((cairo_solid_pattern_t *) src)->color, + boxes); + } + + return _cairo_xcb_surface_core_copy_boxes (dst, src, &extents->bounded, boxes); +} + +static cairo_status_t +_composite_boxes (cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *src, + cairo_boxes_t *boxes, + const cairo_composite_rectangles_t *extents) +{ + cairo_clip_t *clip = extents->clip; + cairo_bool_t need_clip_mask = ! _cairo_clip_is_region (clip); + cairo_status_t status; + + /* If the boxes are not pixel-aligned, we will need to compute a real mask */ + if (! boxes->is_pixel_aligned) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (need_clip_mask && + (! extents->is_bounded || op == CAIRO_OPERATOR_SOURCE)) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + status = _cairo_xcb_connection_acquire (dst->connection); + if (unlikely (status)) + return status; + + _cairo_xcb_surface_ensure_picture (dst); + if (dst->connection->flags & CAIRO_XCB_RENDER_HAS_FILL_RECTANGLES && ! need_clip_mask && + (op == CAIRO_OPERATOR_CLEAR || src->type == CAIRO_PATTERN_TYPE_SOLID)) + { + const cairo_color_t *color; + + if (op == CAIRO_OPERATOR_CLEAR) + color = CAIRO_COLOR_TRANSPARENT; + else + color = &((cairo_solid_pattern_t *) src)->color; + + status = _render_fill_boxes (dst, op, color, boxes); + } + else + { + cairo_surface_pattern_t mask; + + if (need_clip_mask) { + cairo_xcb_surface_t *clip_surface; + int clip_x = 0, clip_y = 0; + + clip_surface = get_clip_surface (extents->clip, dst, + &clip_x, &clip_y); + if (unlikely (clip_surface->base.status)) + return clip_surface->base.status; + + _cairo_pattern_init_for_surface (&mask, &clip_surface->base); + mask.base.filter = CAIRO_FILTER_NEAREST; + cairo_matrix_init_translate (&mask.base.matrix, + -clip_x, + -clip_y); + cairo_surface_destroy (&clip_surface->base); + + if (op == CAIRO_OPERATOR_CLEAR) { + src = NULL; + op = CAIRO_OPERATOR_DEST_OUT; + } + } + + status = _render_composite_boxes (dst, op, src, + need_clip_mask ? &mask.base : NULL, + &extents->bounded, boxes); + + if (need_clip_mask) + _cairo_pattern_fini (&mask.base); + } + + if (status == CAIRO_STATUS_SUCCESS && ! extents->is_bounded) { + status = + _cairo_xcb_surface_fixup_unbounded_boxes (dst, extents, + clip, boxes); + } + + _cairo_xcb_connection_release (dst->connection); + + return status; +} + +static cairo_bool_t +cairo_boxes_for_each_box (cairo_boxes_t *boxes, + cairo_bool_t (*func) (cairo_box_t *box, + void *data), + void *data) +{ + struct _cairo_boxes_chunk *chunk; + int i; + + for (chunk = &boxes->chunks; chunk != NULL; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) + if (! func (&chunk->base[i], data)) + return FALSE; + } + + return TRUE; +} + +struct _image_contains_box { + int width, height; + int tx, ty; +}; + +static cairo_bool_t image_contains_box (cairo_box_t *box, void *closure) +{ + struct _image_contains_box *data = closure; + + /* The box is pixel-aligned so the truncation is safe. */ + return + _cairo_fixed_integer_part (box->p1.x) + data->tx >= 0 && + _cairo_fixed_integer_part (box->p1.y) + data->ty >= 0 && + _cairo_fixed_integer_part (box->p2.x) + data->tx <= data->width && + _cairo_fixed_integer_part (box->p2.y) + data->ty <= data->height; +} + +struct _image_upload_box { + cairo_xcb_surface_t *surface; + cairo_image_surface_t *image; + xcb_gcontext_t gc; + int tx, ty; +}; + +static cairo_bool_t image_upload_box (cairo_box_t *box, void *closure) +{ + const struct _image_upload_box *iub = closure; + /* The box is pixel-aligned so the truncation is safe. */ + int x = _cairo_fixed_integer_part (box->p1.x); + int y = _cairo_fixed_integer_part (box->p1.y); + int width = _cairo_fixed_integer_part (box->p2.x - box->p1.x); + int height = _cairo_fixed_integer_part (box->p2.y - box->p1.y); + int bpp = PIXMAN_FORMAT_BPP (iub->image->pixman_format); + int len = CAIRO_STRIDE_FOR_WIDTH_BPP (width, bpp); + if (len == iub->image->stride) { + _cairo_xcb_connection_put_image (iub->surface->connection, + iub->surface->drawable, + iub->gc, + width, height, + x, y, + iub->image->depth, + iub->image->stride, + iub->image->data + + (y + iub->ty) * iub->image->stride + + (x + iub->tx) * bpp/8); + } else { + _cairo_xcb_connection_put_subimage (iub->surface->connection, + iub->surface->drawable, + iub->gc, + x + iub->tx, + y + iub->ty, + width, height, + bpp / 8, + iub->image->stride, + x, y, + iub->image->depth, + iub->image->data); + } + + return TRUE; +} + +static cairo_status_t +_upload_image_inplace (cairo_xcb_surface_t *surface, + const cairo_pattern_t *source, + cairo_boxes_t *boxes) +{ + const cairo_surface_pattern_t *pattern; + struct _image_contains_box icb; + struct _image_upload_box iub; + cairo_image_surface_t *image; + cairo_status_t status; + int tx, ty; + + if (! boxes->is_pixel_aligned) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (source->type != CAIRO_PATTERN_TYPE_SURFACE) + return CAIRO_INT_STATUS_UNSUPPORTED; + + pattern = (const cairo_surface_pattern_t *) source; + if (! _cairo_surface_is_image (pattern->surface)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Have we already upload this image to a pixmap? */ + { + cairo_xcb_picture_t *snapshot; + + snapshot = (cairo_xcb_picture_t *) + _cairo_surface_has_snapshot (pattern->surface, &_cairo_xcb_picture_backend); + if (snapshot != NULL) { + if (snapshot->screen == surface->screen) + return CAIRO_INT_STATUS_UNSUPPORTED; + } + } + + image = (cairo_image_surface_t *) pattern->surface; + if (image->format == CAIRO_FORMAT_INVALID) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (image->depth != surface->depth) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (! _cairo_matrix_is_integer_translation (&source->matrix, &tx, &ty)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Check that the data is entirely within the image */ + icb.width = image->width; + icb.height = image->height; + icb.tx = tx; + icb.ty = ty; + if (! cairo_boxes_for_each_box (boxes, image_contains_box, &icb)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (surface->deferred_clear) { + status = _cairo_xcb_surface_clear (surface); + if (unlikely (status)) + return status; + } + + status = _cairo_xcb_connection_acquire (surface->connection); + if (unlikely (status)) + return status; + + iub.surface = surface; + iub.image = image; + iub.gc = _cairo_xcb_screen_get_gc (surface->screen, + surface->drawable, + image->depth); + iub.tx = tx; + iub.ty = ty; + cairo_boxes_for_each_box (boxes, image_upload_box, &iub); + + _cairo_xcb_screen_put_gc (surface->screen, image->depth, iub.gc); + _cairo_xcb_connection_release (surface->connection); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +trim_extents_to_traps (cairo_composite_rectangles_t *extents, + cairo_traps_t *traps) +{ + cairo_box_t box; + + /* X trims the affected area to the extents of the trapezoids, so + * we need to compensate when fixing up the unbounded area. + */ + _cairo_traps_extents (traps, &box); + return _cairo_composite_rectangles_intersect_mask_extents (extents, &box); +} + +static cairo_bool_t +_mono_edge_is_vertical (const cairo_line_t *line) +{ + return _cairo_fixed_integer_round_down (line->p1.x) == _cairo_fixed_integer_round_down (line->p2.x); +} + +static cairo_bool_t +_traps_are_pixel_aligned (cairo_traps_t *traps, + cairo_antialias_t antialias) +{ + int i; + + if (antialias == CAIRO_ANTIALIAS_NONE) { + for (i = 0; i < traps->num_traps; i++) { + if (! _mono_edge_is_vertical (&traps->traps[i].left) || + ! _mono_edge_is_vertical (&traps->traps[i].right)) + { + traps->maybe_region = FALSE; + return FALSE; + } + } + } else { + for (i = 0; i < traps->num_traps; i++) { + if (traps->traps[i].left.p1.x != traps->traps[i].left.p2.x || + traps->traps[i].right.p1.x != traps->traps[i].right.p2.x || + ! _cairo_fixed_is_integer (traps->traps[i].top) || + ! _cairo_fixed_is_integer (traps->traps[i].bottom) || + ! _cairo_fixed_is_integer (traps->traps[i].left.p1.x) || + ! _cairo_fixed_is_integer (traps->traps[i].right.p1.x)) + { + traps->maybe_region = FALSE; + return FALSE; + } + } + } + + return TRUE; +} + +static void +_boxes_for_traps (cairo_boxes_t *boxes, + cairo_traps_t *traps, + cairo_antialias_t antialias) +{ + int i, j; + + _cairo_boxes_init (boxes); + + boxes->chunks.base = (cairo_box_t *) traps->traps; + boxes->chunks.size = traps->num_traps; + + if (antialias != CAIRO_ANTIALIAS_NONE) { + for (i = j = 0; i < traps->num_traps; i++) { + /* Note the traps and boxes alias so we need to take the local copies first. */ + cairo_fixed_t x1 = traps->traps[i].left.p1.x; + cairo_fixed_t x2 = traps->traps[i].right.p1.x; + cairo_fixed_t y1 = traps->traps[i].top; + cairo_fixed_t y2 = traps->traps[i].bottom; + + if (x1 == x2 || y1 == y2) + continue; + + boxes->chunks.base[j].p1.x = x1; + boxes->chunks.base[j].p1.y = y1; + boxes->chunks.base[j].p2.x = x2; + boxes->chunks.base[j].p2.y = y2; + j++; + + if (boxes->is_pixel_aligned) { + boxes->is_pixel_aligned = + _cairo_fixed_is_integer (x1) && _cairo_fixed_is_integer (y1) && + _cairo_fixed_is_integer (x2) && _cairo_fixed_is_integer (y2); + } + } + } else { + boxes->is_pixel_aligned = TRUE; + + for (i = j = 0; i < traps->num_traps; i++) { + /* Note the traps and boxes alias so we need to take the local copies first. */ + cairo_fixed_t x1 = traps->traps[i].left.p1.x; + cairo_fixed_t x2 = traps->traps[i].right.p1.x; + cairo_fixed_t y1 = traps->traps[i].top; + cairo_fixed_t y2 = traps->traps[i].bottom; + + /* round down here to match Pixman's behavior when using traps. */ + boxes->chunks.base[j].p1.x = _cairo_fixed_round_down (x1); + boxes->chunks.base[j].p1.y = _cairo_fixed_round_down (y1); + boxes->chunks.base[j].p2.x = _cairo_fixed_round_down (x2); + boxes->chunks.base[j].p2.y = _cairo_fixed_round_down (y2); + + j += (boxes->chunks.base[j].p1.x != boxes->chunks.base[j].p2.x && + boxes->chunks.base[j].p1.y != boxes->chunks.base[j].p2.y); + } + } + + boxes->num_boxes = j; + boxes->chunks.count = j; +} + +static cairo_status_t +_composite_polygon (cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_polygon_t *polygon, + cairo_antialias_t antialias, + cairo_fill_rule_t fill_rule, + cairo_composite_rectangles_t *extents) +{ + composite_traps_info_t traps; + cairo_bool_t clip_surface = ! _cairo_clip_is_region (extents->clip); + cairo_region_t *clip_region = _cairo_clip_get_region (extents->clip); + cairo_status_t status; + + if (polygon->num_edges == 0) { + status = CAIRO_STATUS_SUCCESS; + + if (! extents->is_bounded) { + if (cairo_region_contains_rectangle (clip_region, &extents->unbounded) == CAIRO_REGION_OVERLAP_IN) + clip_region = NULL; + + if (clip_surface == FALSE) { + if (clip_region != NULL) { + status = _cairo_xcb_surface_set_clip_region (dst, clip_region); + if (unlikely (status)) + return status; + } + + status = _cairo_xcb_surface_fixup_unbounded (dst, extents); + + if (clip_region != NULL) + _cairo_xcb_surface_clear_clip_region (dst); + } else { + status = _cairo_xcb_surface_fixup_unbounded_with_mask (dst, + extents, + extents->clip); + } + } + + return status; + } + + if (extents->clip->path != NULL && extents->is_bounded) { + cairo_polygon_t clipper; + cairo_fill_rule_t clipper_fill_rule; + cairo_antialias_t clipper_antialias; + + status = _cairo_clip_get_polygon (extents->clip, + &clipper, + &clipper_fill_rule, + &clipper_antialias); + if (likely (status == CAIRO_STATUS_SUCCESS)) { + if (clipper_antialias == antialias) { + status = _cairo_polygon_intersect (polygon, fill_rule, + &clipper, clipper_fill_rule); + if (likely (status == CAIRO_STATUS_SUCCESS)) { + cairo_clip_t * clip = _cairo_clip_copy_region (extents->clip); + _cairo_clip_destroy (extents->clip); + extents->clip = clip; + + fill_rule = CAIRO_FILL_RULE_WINDING; + } + _cairo_polygon_fini (&clipper); + } + } + } + + _cairo_traps_init (&traps.traps); + + status = _cairo_bentley_ottmann_tessellate_polygon (&traps.traps, polygon, fill_rule); + if (unlikely (status)) + goto CLEANUP_TRAPS; + + if (traps.traps.has_intersections) { + if (traps.traps.is_rectangular) + status = _cairo_bentley_ottmann_tessellate_rectangular_traps (&traps.traps, CAIRO_FILL_RULE_WINDING); + else if (traps.traps.is_rectilinear) + status = _cairo_bentley_ottmann_tessellate_rectilinear_traps (&traps.traps, CAIRO_FILL_RULE_WINDING); + else + status = _cairo_bentley_ottmann_tessellate_traps (&traps.traps, CAIRO_FILL_RULE_WINDING); + if (unlikely (status)) + goto CLEANUP_TRAPS; + } + + /* Use a fast path if the trapezoids consist of a simple region, + * but we can only do this if we do not have a clip surface, or can + * substitute the mask with the clip. + */ + if (traps.traps.maybe_region && + _traps_are_pixel_aligned (&traps.traps, antialias) && + (! clip_surface || + (extents->is_bounded && op != CAIRO_OPERATOR_SOURCE))) + { + cairo_boxes_t boxes; + + _boxes_for_traps (&boxes, &traps.traps, antialias); + status = _clip_and_composite_boxes (dst, op, source, &boxes, extents); + } + else + { + /* Otherwise render the trapezoids to a mask and composite in the usual + * fashion. + */ + traps.antialias = antialias; + status = trim_extents_to_traps (extents, &traps.traps); + if (likely (status == CAIRO_STATUS_SUCCESS)) { + unsigned int flags = 0; + + /* For unbounded operations, the X11 server will estimate the + * affected rectangle and apply the operation to that. However, + * there are cases where this is an overestimate (e.g. the + * clip-fill-{eo,nz}-unbounded test). + * + * The clip will trim that overestimate to our expectations. + */ + if (! extents->is_bounded) + flags |= FORCE_CLIP_REGION; + + status = _clip_and_composite (dst, op, source, _composite_traps, + NULL, &traps, extents, + need_unbounded_clip (extents) | flags); + } + } + +CLEANUP_TRAPS: + _cairo_traps_fini (&traps.traps); + + return status; +} + +static cairo_status_t +_clip_and_composite_boxes (cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *src, + cairo_boxes_t *boxes, + cairo_composite_rectangles_t *extents) +{ + composite_traps_info_t info; + cairo_int_status_t status; + + if (boxes->num_boxes == 0 && extents->is_bounded) + return CAIRO_STATUS_SUCCESS; + + if (boxes->is_pixel_aligned && _cairo_clip_is_region (extents->clip) && + (op == CAIRO_OPERATOR_SOURCE || + (dst->base.is_clear && (op == CAIRO_OPERATOR_OVER || op == CAIRO_OPERATOR_ADD)))) + { + if (boxes->num_boxes == 1 && + extents->bounded.width == dst->width && + extents->bounded.height == dst->height) + { + op = CAIRO_OPERATOR_SOURCE; + dst->deferred_clear = FALSE; + } + + status = _upload_image_inplace (dst, src, boxes); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + } + + /* Can we reduce drawing through a clip-mask to simply drawing the clip? */ + if (dst->connection->flags & CAIRO_XCB_RENDER_HAS_COMPOSITE_TRAPEZOIDS && + extents->clip->path != NULL && extents->is_bounded) { + cairo_polygon_t polygon; + cairo_fill_rule_t fill_rule; + cairo_antialias_t antialias; + cairo_clip_t *clip; + + clip = _cairo_clip_copy (extents->clip); + clip = _cairo_clip_intersect_boxes (clip, boxes); + if (_cairo_clip_is_all_clipped (clip)) + return CAIRO_INT_STATUS_NOTHING_TO_DO; + + status = _cairo_clip_get_polygon (clip, &polygon, + &fill_rule, &antialias); + _cairo_clip_path_destroy (clip->path); + clip->path = NULL; + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + cairo_clip_t *saved_clip = extents->clip; + extents->clip = clip; + status = _composite_polygon (dst, op, src, + &polygon, + antialias, + fill_rule, + extents); + clip = extents->clip; + extents->clip = saved_clip; + _cairo_polygon_fini (&polygon); + } + if (clip) + _cairo_clip_destroy (clip); + + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + } + + if (dst->deferred_clear) { + status = _cairo_xcb_surface_clear (dst); + if (unlikely (status)) + return status; + } + + if (boxes->is_pixel_aligned && + _cairo_clip_is_region (extents->clip) && + op == CAIRO_OPERATOR_SOURCE) { + status = _upload_image_inplace (dst, src, boxes); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + } + + if ((dst->connection->flags & CAIRO_XCB_RENDER_HAS_COMPOSITE) == 0) + return _core_boxes (dst, op, src, boxes, extents); + + /* Use a fast path if the boxes are pixel aligned */ + status = _composite_boxes (dst, op, src, boxes, extents); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + return status; + + if ((dst->connection->flags & CAIRO_XCB_RENDER_HAS_COMPOSITE_TRAPEZOIDS) == 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Otherwise render via a mask and composite in the usual fashion. */ + status = _cairo_traps_init_boxes (&info.traps, boxes); + if (unlikely (status)) + return status; + + info.antialias = CAIRO_ANTIALIAS_DEFAULT; + status = trim_extents_to_traps (extents, &info.traps); + if (status == CAIRO_INT_STATUS_SUCCESS) { + status = _clip_and_composite (dst, op, src, + _composite_traps, NULL, &info, + extents, need_unbounded_clip (extents)); + } + + _cairo_traps_fini (&info.traps); + return status; +} + +static cairo_int_status_t +_composite_mask (void *closure, + cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *src_pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + const cairo_pattern_t *mask_pattern = closure; + cairo_xcb_picture_t *src, *mask = NULL; + cairo_status_t status; + + if (dst->base.is_clear) { + if (op == CAIRO_OPERATOR_OVER || op == CAIRO_OPERATOR_ADD) + op = CAIRO_OPERATOR_SOURCE; + } + + if (op == CAIRO_OPERATOR_SOURCE && clip == NULL) + dst->deferred_clear = FALSE; + + if (dst->deferred_clear) { + status = _cairo_xcb_surface_clear (dst); + if (unlikely (status)) + return status; + } + + if (src_pattern != NULL) { + src = _cairo_xcb_picture_for_pattern (dst, src_pattern, extents); + if (unlikely (src->base.status)) + return src->base.status; + + mask = _cairo_xcb_picture_for_pattern (dst, mask_pattern, extents); + if (unlikely (mask->base.status)) { + cairo_surface_destroy (&src->base); + return mask->base.status; + } + + _cairo_xcb_connection_render_composite (dst->connection, + _render_operator (op), + src->picture, + mask->picture, + dst->picture, + extents->x + src->x, extents->y + src->y, + extents->x + mask->x, extents->y + mask->y, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + cairo_surface_destroy (&mask->base); + cairo_surface_destroy (&src->base); + } else { + src = _cairo_xcb_picture_for_pattern (dst, mask_pattern, extents); + if (unlikely (src->base.status)) + return src->base.status; + + _cairo_xcb_connection_render_composite (dst->connection, + _render_operator (op), + src->picture, + XCB_NONE, + dst->picture, + extents->x + src->x, extents->y + src->y, + 0, 0, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + cairo_surface_destroy (&src->base); + } + + return CAIRO_STATUS_SUCCESS; +} + +struct composite_box_info { + cairo_xcb_surface_t *dst; + cairo_xcb_picture_t *src; + uint8_t op; +}; + +static void composite_box(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage) +{ + struct composite_box_info *info = closure; + + if (coverage < 0xff00) { + cairo_xcb_picture_t *mask; + cairo_color_t color; + + color.red_short = color.green_short = color.blue_short = 0; + color.alpha_short = coverage; + + mask = _solid_picture (info->dst, &color); + if (likely (mask->base.status == CAIRO_STATUS_SUCCESS)) { + _cairo_xcb_connection_render_composite (info->dst->connection, + info->op, + info->src->picture, + mask->picture, + info->dst->picture, + x + info->src->x, y + info->src->y, + 0, 0, + x, y, + w, h); + } + cairo_surface_destroy (&mask->base); + } else { + _cairo_xcb_connection_render_composite (info->dst->connection, + info->op, + info->src->picture, + XCB_NONE, + info->dst->picture, + x + info->src->x, y + info->src->y, + 0, 0, + x, y, + w, h); + } +} + +static cairo_int_status_t +_composite_mask_clip_boxes (void *closure, + cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *src_pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + struct composite_box_info info; + cairo_status_t status; + int i; + + assert (src_pattern == NULL); + assert (op == CAIRO_OPERATOR_ADD); + assert (dst->base.is_clear); + + if (clip->num_boxes > 1) { + status = _cairo_xcb_surface_clear (dst); + if (unlikely (status)) + return status; + } + + info.op = XCB_RENDER_PICT_OP_SRC; + info.dst = dst; + info.src = _cairo_xcb_picture_for_pattern (dst, closure, extents); + if (unlikely (info.src->base.status)) + return info.src->base.status; + + info.src->x += dst_x; + info.src->y += dst_y; + + for (i = 0; i < clip->num_boxes; i++) + do_unaligned_box(composite_box, &info, &clip->boxes[i], dst_x, dst_y); + cairo_surface_destroy (&info.src->base); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_composite_mask_clip (void *closure, + cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *src_pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + const cairo_pattern_t *mask_pattern = closure; + cairo_polygon_t polygon; + cairo_fill_rule_t fill_rule; + composite_traps_info_t info; + cairo_status_t status; + + assert (src_pattern == NULL); + assert (op == CAIRO_OPERATOR_ADD); + assert (dst->base.is_clear); + + status = _cairo_clip_get_polygon (clip, &polygon, + &fill_rule, &info.antialias); + if (unlikely (status)) + return status; + + _cairo_traps_init (&info.traps); + status = _cairo_bentley_ottmann_tessellate_polygon (&info.traps, + &polygon, + fill_rule); + _cairo_polygon_fini (&polygon); + if (unlikely (status)) + return status; + + if (info.traps.has_intersections) { + if (info.traps.is_rectangular) + status = _cairo_bentley_ottmann_tessellate_rectangular_traps (&info.traps, CAIRO_FILL_RULE_WINDING); + else if (info.traps.is_rectilinear) + status = _cairo_bentley_ottmann_tessellate_rectilinear_traps (&info.traps, CAIRO_FILL_RULE_WINDING); + else + status = _cairo_bentley_ottmann_tessellate_traps (&info.traps, CAIRO_FILL_RULE_WINDING); + if (unlikely (status)) { + _cairo_traps_fini (&info.traps); + return status; + } + } + + status = _composite_traps (&info, + dst, CAIRO_OPERATOR_SOURCE, mask_pattern, + dst_x, dst_y, + extents, NULL); + _cairo_traps_fini (&info.traps); + + return status; +} + +struct composite_opacity_info { + uint8_t op; + cairo_xcb_surface_t *dst; + cairo_xcb_picture_t *src; + double opacity; +}; + +static void composite_opacity(void *closure, + int16_t x, int16_t y, + int16_t w, int16_t h, + uint16_t coverage) +{ + struct composite_opacity_info *info = closure; + cairo_xcb_picture_t *mask; + cairo_color_t color; + + color.red_short = color.green_short = color.blue_short = 0; + color.alpha_short = info->opacity * coverage; + + mask = _solid_picture (info->dst, &color); + if (likely (mask->base.status == CAIRO_STATUS_SUCCESS)) { + if (info->src) { + _cairo_xcb_connection_render_composite (info->dst->connection, + info->op, + info->src->picture, + mask->picture, + info->dst->picture, + x + info->src->x, y + info->src->y, + 0, 0, + x, y, + w, h); + } else { + _cairo_xcb_connection_render_composite (info->dst->connection, + info->op, + mask->picture, + XCB_NONE, + info->dst->picture, + 0, 0, + 0, 0, + x, y, + w, h); + } + } + + cairo_surface_destroy (&mask->base); +} + +static cairo_int_status_t +_composite_opacity_boxes (void *closure, + cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *src_pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + const cairo_solid_pattern_t *mask_pattern = closure; + struct composite_opacity_info info; + cairo_status_t status; + int i; + + if (dst->base.is_clear) { + if (op == CAIRO_OPERATOR_OVER || op == CAIRO_OPERATOR_ADD) + op = CAIRO_OPERATOR_SOURCE; + } + + if (op == CAIRO_OPERATOR_SOURCE && + (clip == NULL || + (clip->extents.width >= extents->width && + clip->extents.height >= extents->height))) + dst->deferred_clear = FALSE; + + if (dst->deferred_clear) { + status = _cairo_xcb_surface_clear (dst); + if (unlikely (status)) + return status; + } + + info.op = _render_operator (op); + info.dst = dst; + + if (src_pattern != NULL) { + info.src = _cairo_xcb_picture_for_pattern (dst, src_pattern, extents); + if (unlikely (info.src->base.status)) + return info.src->base.status; + } else + info.src = NULL; + + info.opacity = mask_pattern->color.alpha; + + /* XXX for lots of boxes create a clip region for the fully opaque areas */ + if (clip) { + for (i = 0; i < clip->num_boxes; i++) + do_unaligned_box(composite_opacity, &info, + &clip->boxes[i], dst_x, dst_y); + } else { + composite_opacity(&info, + extents->x - dst_x, + extents->y - dst_y, + extents->width, + extents->height, + 0xffff); + } + cairo_surface_destroy (&info.src->base); + + return CAIRO_STATUS_SUCCESS; +} + +/* high level rasteriser -> compositor */ + +cairo_int_status_t +_cairo_xcb_render_compositor_paint (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *composite) +{ + cairo_xcb_surface_t *surface = (cairo_xcb_surface_t *) composite->surface; + cairo_operator_t op = composite->op; + cairo_pattern_t *source = &composite->source_pattern.base; + cairo_boxes_t boxes; + cairo_status_t status; + + if (unlikely (! _operator_is_supported (surface->connection->flags, op))) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if ((surface->connection->flags & (CAIRO_XCB_RENDER_HAS_COMPOSITE_TRAPEZOIDS | + CAIRO_XCB_RENDER_HAS_COMPOSITE)) == 0) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + if (composite->clip == NULL && + source->type == CAIRO_PATTERN_TYPE_SOLID && + (op == CAIRO_OPERATOR_SOURCE || + op == CAIRO_OPERATOR_CLEAR || + (surface->base.is_clear && + (op == CAIRO_OPERATOR_ADD || op == CAIRO_OPERATOR_OVER)))) + { + surface->deferred_clear = TRUE; + surface->deferred_clear_color = composite->source_pattern.solid.color; + return CAIRO_STATUS_SUCCESS; + } + + _cairo_clip_steal_boxes(composite->clip, &boxes); + status = _clip_and_composite_boxes (surface, op, source, &boxes, composite); + _cairo_clip_unsteal_boxes (composite->clip, &boxes); + + return status; +} + +cairo_int_status_t +_cairo_xcb_render_compositor_mask (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *composite) +{ + cairo_xcb_surface_t *surface = (cairo_xcb_surface_t *) composite->surface; + cairo_operator_t op = composite->op; + cairo_pattern_t *source = &composite->source_pattern.base; + cairo_pattern_t *mask = &composite->mask_pattern.base; + cairo_status_t status; + + if (unlikely (! _operator_is_supported (surface->connection->flags, op))) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if ((surface->connection->flags & CAIRO_XCB_RENDER_HAS_COMPOSITE) == 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (mask->type == CAIRO_PATTERN_TYPE_SOLID && + composite->clip->path == NULL && + ! _cairo_clip_is_region (composite->clip)) { + status = _clip_and_composite (surface, op, source, + _composite_opacity_boxes, + _composite_opacity_boxes, + (void *) mask, + composite, need_unbounded_clip (composite)); + } else { + xcb_draw_func_t mask_func = NULL; + if (surface->connection->flags & CAIRO_XCB_RENDER_HAS_COMPOSITE_TRAPEZOIDS) + mask_func = composite->clip->path ? _composite_mask_clip : _composite_mask_clip_boxes; + status = _clip_and_composite (surface, op, source, + _composite_mask, mask_func, + (void *) mask, + composite, need_bounded_clip (composite)); + } + + return status; +} + +static cairo_int_status_t +_cairo_xcb_surface_render_stroke_as_polygon (cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + cairo_composite_rectangles_t *extents) +{ + cairo_polygon_t polygon; + cairo_status_t status; + + _cairo_polygon_init_with_clip (&polygon, extents->clip); + status = _cairo_path_fixed_stroke_to_polygon (path, + stroke_style, + ctm, ctm_inverse, + tolerance, + &polygon); + if (likely (status == CAIRO_STATUS_SUCCESS)) { + status = _composite_polygon (dst, op, source, + &polygon, antialias, + CAIRO_FILL_RULE_WINDING, + extents); + } + _cairo_polygon_fini (&polygon); + + return status; +} + +static cairo_status_t +_cairo_xcb_surface_render_stroke_via_mask (cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + cairo_composite_rectangles_t *extents) +{ + cairo_surface_t *image; + cairo_status_t status; + cairo_clip_t *clip; + int x, y; + + x = extents->bounded.x; + y = extents->bounded.y; + image = _cairo_xcb_surface_create_similar_image (dst, CAIRO_FORMAT_A8, + extents->bounded.width, + extents->bounded.height); + if (unlikely (image->status)) + return image->status; + + clip = _cairo_clip_copy_region (extents->clip); + status = _cairo_surface_offset_stroke (image, x, y, + CAIRO_OPERATOR_ADD, + &_cairo_pattern_white.base, + path, stroke_style, + ctm, ctm_inverse, + tolerance, antialias, + clip); + _cairo_clip_destroy (clip); + if (likely (status == CAIRO_STATUS_SUCCESS)) { + cairo_surface_pattern_t mask; + + _cairo_pattern_init_for_surface (&mask, image); + mask.base.filter = CAIRO_FILTER_NEAREST; + + cairo_matrix_init_translate (&mask.base.matrix, -x, -y); + status = _clip_and_composite (dst, op, source, + _composite_mask, NULL, &mask.base, + extents, need_bounded_clip (extents)); + _cairo_pattern_fini (&mask.base); + } + + cairo_surface_finish (image); + cairo_surface_destroy (image); + + return status; +} + +cairo_int_status_t +_cairo_xcb_render_compositor_stroke (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *composite, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_xcb_surface_t *surface = (cairo_xcb_surface_t *) composite->surface; + cairo_operator_t op = composite->op; + cairo_pattern_t *source = &composite->source_pattern.base; + cairo_int_status_t status; + + if (unlikely (! _operator_is_supported (surface->connection->flags, op))) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if ((surface->connection->flags & (CAIRO_XCB_RENDER_HAS_COMPOSITE_TRAPEZOIDS | + CAIRO_XCB_RENDER_HAS_COMPOSITE)) == 0) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (_cairo_path_fixed_stroke_is_rectilinear (path)) { + cairo_boxes_t boxes; + + _cairo_boxes_init_with_clip (&boxes, composite->clip); + status = _cairo_path_fixed_stroke_rectilinear_to_boxes (path, + style, + ctm, + antialias, + &boxes); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + status = _clip_and_composite_boxes (surface, op, source, + &boxes, composite); + } + _cairo_boxes_fini (&boxes); + } + + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + if (surface->connection->flags & CAIRO_XCB_RENDER_HAS_COMPOSITE_TRAPEZOIDS) { + status = _cairo_xcb_surface_render_stroke_as_polygon (surface, op, source, + path, style, + ctm, ctm_inverse, + tolerance, antialias, + composite); + } else if (surface->connection->flags & CAIRO_XCB_RENDER_HAS_COMPOSITE) { + status = _cairo_xcb_surface_render_stroke_via_mask (surface, op, source, + path, style, + ctm, ctm_inverse, + tolerance, antialias, + composite); + } else { + ASSERT_NOT_REACHED; + } + } + + return status; +} + +static cairo_status_t +_cairo_xcb_surface_render_fill_as_polygon (cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t*source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + cairo_composite_rectangles_t *extents) +{ + cairo_polygon_t polygon; + cairo_status_t status; + + _cairo_polygon_init_with_clip (&polygon, extents->clip); + status = _cairo_path_fixed_fill_to_polygon (path, tolerance, &polygon); + if (likely (status == CAIRO_STATUS_SUCCESS)) { + status = _composite_polygon (dst, op, source, + &polygon, + antialias, + fill_rule, + extents); + } + _cairo_polygon_fini (&polygon); + + return status; +} + +static cairo_status_t +_cairo_xcb_surface_render_fill_via_mask (cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + cairo_composite_rectangles_t *extents) +{ + cairo_surface_t *image; + cairo_status_t status; + cairo_clip_t *clip; + int x, y; + + x = extents->bounded.x; + y = extents->bounded.y; + image = _cairo_xcb_surface_create_similar_image (dst, CAIRO_FORMAT_A8, + extents->bounded.width, + extents->bounded.height); + if (unlikely (image->status)) + return image->status; + + clip = _cairo_clip_copy_region (extents->clip); + status = _cairo_surface_offset_fill (image, x, y, + CAIRO_OPERATOR_ADD, + &_cairo_pattern_white.base, + path, fill_rule, tolerance, antialias, + clip); + _cairo_clip_destroy (clip); + if (likely (status == CAIRO_STATUS_SUCCESS)) { + cairo_surface_pattern_t mask; + + _cairo_pattern_init_for_surface (&mask, image); + mask.base.filter = CAIRO_FILTER_NEAREST; + + cairo_matrix_init_translate (&mask.base.matrix, -x, -y); + status = _clip_and_composite (dst, op, source, + _composite_mask, NULL, &mask.base, + extents, need_bounded_clip (extents)); + + _cairo_pattern_fini (&mask.base); + } + + cairo_surface_finish (image); + cairo_surface_destroy (image); + + return status; +} + +cairo_int_status_t +_cairo_xcb_render_compositor_fill (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *composite, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_xcb_surface_t *surface = (cairo_xcb_surface_t *) composite->surface; + cairo_operator_t op = composite->op; + cairo_pattern_t *source = &composite->source_pattern.base; + cairo_int_status_t status; + + if (unlikely (! _operator_is_supported (surface->connection->flags, op))) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if ((surface->connection->flags & (CAIRO_XCB_RENDER_HAS_COMPOSITE_TRAPEZOIDS | + CAIRO_XCB_RENDER_HAS_COMPOSITE)) == 0) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (_cairo_path_fixed_fill_is_rectilinear (path)) { + cairo_boxes_t boxes; + + _cairo_boxes_init_with_clip (&boxes, composite->clip); + status = _cairo_path_fixed_fill_rectilinear_to_boxes (path, + fill_rule, + antialias, + &boxes); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + status = _clip_and_composite_boxes (surface, op, source, + &boxes, composite); + } + _cairo_boxes_fini (&boxes); + } + + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + if (surface->connection->flags & CAIRO_XCB_RENDER_HAS_COMPOSITE_TRAPEZOIDS) { + status = _cairo_xcb_surface_render_fill_as_polygon (surface, op, source, path, + fill_rule, tolerance, antialias, + composite); + } else if (surface->connection->flags & CAIRO_XCB_RENDER_HAS_COMPOSITE) { + status = _cairo_xcb_surface_render_fill_via_mask (surface, op, source, path, + fill_rule, tolerance, antialias, + composite); + } else { + ASSERT_NOT_REACHED; + } + } + + return status; +} + +static cairo_status_t +_cairo_xcb_surface_render_glyphs_via_mask (cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_composite_rectangles_t *extents) +{ + cairo_surface_t *image; + cairo_content_t content; + cairo_status_t status; + cairo_clip_t *clip; + int x, y; + + content = CAIRO_CONTENT_ALPHA; + if (scaled_font->options.antialias == CAIRO_ANTIALIAS_SUBPIXEL) + content = CAIRO_CONTENT_COLOR_ALPHA; + + x = extents->bounded.x; + y = extents->bounded.y; + image = _cairo_xcb_surface_create_similar_image (dst, + _cairo_format_from_content (content), + extents->bounded.width, + extents->bounded.height); + if (unlikely (image->status)) + return image->status; + + clip = _cairo_clip_copy_region (extents->clip); + status = _cairo_surface_offset_glyphs (image, x, y, + CAIRO_OPERATOR_ADD, + &_cairo_pattern_white.base, + scaled_font, glyphs, num_glyphs, + clip); + _cairo_clip_destroy (clip); + if (likely (status == CAIRO_STATUS_SUCCESS)) { + cairo_surface_pattern_t mask; + + _cairo_pattern_init_for_surface (&mask, image); + mask.base.filter = CAIRO_FILTER_NEAREST; + if (content & CAIRO_CONTENT_COLOR) + mask.base.has_component_alpha = TRUE; + + cairo_matrix_init_translate (&mask.base.matrix, -x, -y); + status = _clip_and_composite (dst, op, source, + _composite_mask, NULL, &mask.base, + extents, need_bounded_clip (extents)); + + _cairo_pattern_fini (&mask.base); + } + + cairo_surface_finish (image); + cairo_surface_destroy (image); + + return status; +} + +/* Build a struct of the same size of #cairo_glyph_t that can be used both as + * an input glyph with double coordinates, and as "working" glyph with + * integer from-current-point offsets. */ +typedef union { + cairo_glyph_t d; + unsigned long index; + struct { + unsigned long index; + int x; + int y; + } i; +} cairo_xcb_glyph_t; + +/* compile-time assert that #cairo_xcb_glyph_t is the same size as #cairo_glyph_t */ +COMPILE_TIME_ASSERT (sizeof (cairo_xcb_glyph_t) == sizeof (cairo_glyph_t)); + +typedef struct { + cairo_scaled_font_t *font; + cairo_xcb_glyph_t *glyphs; + int num_glyphs; + cairo_bool_t use_mask; +} composite_glyphs_info_t; + +static cairo_status_t +_can_composite_glyphs (cairo_xcb_surface_t *dst, + cairo_rectangle_int_t *extents, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int *num_glyphs) +{ +#define GLYPH_CACHE_SIZE 64 + cairo_box_t bbox_cache[GLYPH_CACHE_SIZE]; + unsigned long glyph_cache[GLYPH_CACHE_SIZE]; +#undef GLYPH_CACHE_SIZE + cairo_status_t status = CAIRO_STATUS_SUCCESS; + cairo_glyph_t *glyphs_end, *valid_glyphs; + const int max_glyph_size = dst->connection->maximum_request_length - 64; + + /* We must initialize the cache with values that cannot match the + * "hash" to guarantee that when compared for the first time they + * will result in a mismatch. The hash function is simply modulus, + * so we cannot use 0 in glyph_cache[0], but we can use it in all + * other array cells. + */ + memset (glyph_cache, 0, sizeof (glyph_cache)); + glyph_cache[0] = 1; + + /* Scan for oversized glyphs or glyphs outside the representable + * range and fallback in that case, discard glyphs outside of the + * image. + */ + valid_glyphs = glyphs; + for (glyphs_end = glyphs + *num_glyphs; glyphs != glyphs_end; glyphs++) { + double x1, y1, x2, y2; + cairo_scaled_glyph_t *glyph; + cairo_box_t *bbox; + int width, height, len; + int g; + + g = glyphs->index % ARRAY_LENGTH (glyph_cache); + if (glyph_cache[g] != glyphs->index) { + status = _cairo_scaled_glyph_lookup (scaled_font, + glyphs->index, + CAIRO_SCALED_GLYPH_INFO_METRICS, + NULL, /* foreground color */ + &glyph); + if (unlikely (status)) + break; + + glyph_cache[g] = glyphs->index; + bbox_cache[g] = glyph->bbox; + } + bbox = &bbox_cache[g]; + + /* Drop glyphs outside the clipping */ + x1 = _cairo_fixed_to_double (bbox->p1.x); + y1 = _cairo_fixed_to_double (bbox->p1.y); + y2 = _cairo_fixed_to_double (bbox->p2.y); + x2 = _cairo_fixed_to_double (bbox->p2.x); + if (unlikely (glyphs->x + x2 <= extents->x || + glyphs->y + y2 <= extents->y || + glyphs->x + x1 >= extents->x + extents->width || + glyphs->y + y1 >= extents->y + extents->height)) + { + (*num_glyphs)--; + continue; + } + + /* XRenderAddGlyph does not handle a glyph surface larger than + * the extended maximum XRequest size. + */ + width = _cairo_fixed_integer_ceil (bbox->p2.x - bbox->p1.x); + height = _cairo_fixed_integer_ceil (bbox->p2.y - bbox->p1.y); + len = CAIRO_STRIDE_FOR_WIDTH_BPP (width, 32) * height; + if (unlikely (len >= max_glyph_size)) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + break; + } + + /* The glyph coordinates must be representable in an int16_t. + * When possible, they will be expressed as an offset from the + * previous glyph, otherwise they will be an offset from the + * operation extents or from the surface origin. If the last + * two options are not valid, fallback. + */ + if (unlikely (glyphs->x > INT16_MAX || + glyphs->y > INT16_MAX || + glyphs->x - extents->x < INT16_MIN || + glyphs->y - extents->y < INT16_MIN)) + { + status = CAIRO_INT_STATUS_UNSUPPORTED; + break; + } + + + if (unlikely (valid_glyphs != glyphs)) + *valid_glyphs = *glyphs; + valid_glyphs++; + } + + if (unlikely (valid_glyphs != glyphs)) { + for (; glyphs != glyphs_end; glyphs++) { + *valid_glyphs = *glyphs; + valid_glyphs++; + } + } + + return status; +} + +/* Start a new element for the first glyph, + * or for any glyph that has unexpected position, + * or if current element has too many glyphs + * (Xrender limits each element to 252 glyphs, we limit them to 128) + * + * These same conditions need to be mirrored between + * _cairo_xcb_surface_emit_glyphs and _emit_glyph_chunks + */ +#define _start_new_glyph_elt(count, glyph) \ + (((count) & 127) == 0 || (glyph)->i.x || (glyph)->i.y) + +/* sz_xGlyphtElt required alignment to a 32-bit boundary, so ensure we have + * enough room for padding */ +typedef struct { + uint8_t len; + uint8_t pad1; + uint16_t pad2; + int16_t deltax; + int16_t deltay; +} x_glyph_elt_t; +#define _cairo_sz_x_glyph_elt_t (sizeof (x_glyph_elt_t) + 4) + +static void +_cairo_xcb_font_destroy (cairo_xcb_font_t *font) +{ + int i; + + for (i = 0; i < NUM_GLYPHSETS; i++) { + cairo_xcb_font_glyphset_info_t *info; + + info = &font->glyphset_info[i]; + free (info->pending_free_glyphs); + } + + cairo_list_del (&font->base.link); + cairo_list_del (&font->link); + + _cairo_xcb_connection_destroy (font->connection); + + free (font); +} + +static void +_cairo_xcb_font_fini (cairo_scaled_font_private_t *abstract_private, + cairo_scaled_font_t *scaled_font) +{ + cairo_xcb_font_t *font_private = (cairo_xcb_font_t *)abstract_private; + cairo_xcb_connection_t *connection; + cairo_bool_t have_connection; + cairo_status_t status; + int i; + + connection = font_private->connection; + + status = _cairo_xcb_connection_acquire (connection); + have_connection = status == CAIRO_STATUS_SUCCESS; + + for (i = 0; i < NUM_GLYPHSETS; i++) { + cairo_xcb_font_glyphset_info_t *info; + + info = &font_private->glyphset_info[i]; + if (info->glyphset && status == CAIRO_STATUS_SUCCESS) { + _cairo_xcb_connection_render_free_glyph_set (connection, + info->glyphset); + } + } + + if (have_connection) + _cairo_xcb_connection_release (connection); + + _cairo_xcb_font_destroy (font_private); +} + + +static cairo_xcb_font_t * +_cairo_xcb_font_create (cairo_xcb_connection_t *connection, + cairo_scaled_font_t *font) +{ + cairo_xcb_font_t *priv; + int i; + + priv = _cairo_calloc (sizeof (cairo_xcb_font_t)); + if (unlikely (priv == NULL)) + return NULL; + + _cairo_scaled_font_attach_private (font, &priv->base, connection, + _cairo_xcb_font_fini); + + priv->scaled_font = font; + priv->connection = _cairo_xcb_connection_reference (connection); + cairo_list_add (&priv->link, &connection->fonts); + + for (i = 0; i < NUM_GLYPHSETS; i++) { + cairo_xcb_font_glyphset_info_t *info = &priv->glyphset_info[i]; + switch (i) { + case GLYPHSET_INDEX_ARGB32: info->format = CAIRO_FORMAT_ARGB32; break; + case GLYPHSET_INDEX_A8: info->format = CAIRO_FORMAT_A8; break; + case GLYPHSET_INDEX_A1: info->format = CAIRO_FORMAT_A1; break; + default: ASSERT_NOT_REACHED; break; + } + info->xrender_format = 0; + info->glyphset = XCB_NONE; + info->pending_free_glyphs = NULL; + } + + return priv; +} + +void +_cairo_xcb_font_close (cairo_xcb_font_t *font) +{ + cairo_scaled_font_t *scaled_font; + + scaled_font = font->scaled_font; + + //scaled_font->surface_private = NULL; + _cairo_scaled_font_reset_cache (scaled_font); + + _cairo_xcb_font_destroy (font); +} + +static void +_cairo_xcb_render_free_glyphs (cairo_xcb_connection_t *connection, + cairo_xcb_font_glyphset_free_glyphs_t *to_free) +{ + _cairo_xcb_connection_render_free_glyphs (connection, + to_free->glyphset, + to_free->glyph_count, + to_free->glyph_indices); +} + +static int +_cairo_xcb_get_glyphset_index_for_format (cairo_format_t format) +{ + if (format == CAIRO_FORMAT_A8) + return GLYPHSET_INDEX_A8; + if (format == CAIRO_FORMAT_A1) + return GLYPHSET_INDEX_A1; + + assert (format == CAIRO_FORMAT_ARGB32); + return GLYPHSET_INDEX_ARGB32; +} + + + +static inline cairo_xcb_font_t * +_cairo_xcb_font_get (const cairo_xcb_connection_t *c, + cairo_scaled_font_t *font) +{ + return (cairo_xcb_font_t *)_cairo_scaled_font_find_private (font, c); +} + + +static cairo_xcb_font_glyphset_info_t * +_cairo_xcb_scaled_font_get_glyphset_info_for_format (cairo_xcb_connection_t *c, + cairo_scaled_font_t *font, + cairo_format_t format) +{ + cairo_xcb_font_t *priv; + cairo_xcb_font_glyphset_info_t *info; + int glyphset_index; + + glyphset_index = _cairo_xcb_get_glyphset_index_for_format (format); + + priv = _cairo_xcb_font_get (c, font); + if (priv == NULL) { + priv = _cairo_xcb_font_create (c, font); + if (priv == NULL) + return NULL; + } + + info = &priv->glyphset_info[glyphset_index]; + if (info->glyphset == XCB_NONE) { + info->glyphset = xcb_generate_id (c->xcb_connection); + info->xrender_format = c->standard_formats[info->format]; + + _cairo_xcb_connection_render_create_glyph_set (c, + info->glyphset, + info->xrender_format); + } + + return info; +} + +static cairo_bool_t +_cairo_xcb_glyphset_info_has_pending_free_glyph ( + cairo_xcb_font_glyphset_info_t *info, + unsigned long glyph_index) +{ + if (info->pending_free_glyphs != NULL) { + cairo_xcb_font_glyphset_free_glyphs_t *to_free; + int i; + + to_free = info->pending_free_glyphs; + for (i = 0; i < to_free->glyph_count; i++) { + if (to_free->glyph_indices[i] == glyph_index) { + to_free->glyph_count--; + memmove (&to_free->glyph_indices[i], + &to_free->glyph_indices[i+1], + (to_free->glyph_count - i) * sizeof (to_free->glyph_indices[0])); + return TRUE; + } + } + } + + return FALSE; +} + +typedef struct { + cairo_scaled_glyph_private_t base; + + cairo_xcb_font_glyphset_info_t *glyphset; +} cairo_xcb_glyph_private_t; + +static cairo_xcb_font_glyphset_info_t * +_cairo_xcb_scaled_font_get_glyphset_info_for_pending_free_glyph (cairo_xcb_connection_t *c, + cairo_scaled_font_t *font, + unsigned long glyph_index, + cairo_image_surface_t *surface) +{ + cairo_xcb_font_t *priv; + int i; + + priv = _cairo_xcb_font_get (c, font); + if (priv == NULL) + return NULL; + + if (surface != NULL) { + i = _cairo_xcb_get_glyphset_index_for_format (surface->format); + + if (_cairo_xcb_glyphset_info_has_pending_free_glyph ( + &priv->glyphset_info[i], + glyph_index)) + { + return &priv->glyphset_info[i]; + } + } else { + for (i = 0; i < NUM_GLYPHSETS; i++) { + if (_cairo_xcb_glyphset_info_has_pending_free_glyph ( + &priv->glyphset_info[i], + glyph_index)) + { + return &priv->glyphset_info[i]; + } + } + } + + return NULL; +} + +static void +_cairo_xcb_glyph_fini (cairo_scaled_glyph_private_t *glyph_private, + cairo_scaled_glyph_t *glyph, + cairo_scaled_font_t *font) +{ + cairo_xcb_glyph_private_t *priv = (cairo_xcb_glyph_private_t *)glyph_private; + + if (! font->finished) { + cairo_xcb_font_glyphset_info_t *info = priv->glyphset; + cairo_xcb_font_glyphset_free_glyphs_t *to_free; + cairo_xcb_font_t *font_private; + + font_private = _cairo_xcb_font_get (glyph_private->key, font); + assert (font_private); + + to_free = info->pending_free_glyphs; + if (to_free != NULL && + to_free->glyph_count == ARRAY_LENGTH (to_free->glyph_indices)) + { + _cairo_xcb_render_free_glyphs (font_private->connection, to_free); + to_free = info->pending_free_glyphs = NULL; + } + + if (to_free == NULL) { + to_free = _cairo_calloc (sizeof (cairo_xcb_font_glyphset_free_glyphs_t)); + if (unlikely (to_free == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return; /* XXX cannot propagate failure */ + } + + to_free->glyphset = info->glyphset; + to_free->glyph_count = 0; + info->pending_free_glyphs = to_free; + } + + to_free->glyph_indices[to_free->glyph_count++] = + _cairo_scaled_glyph_index (glyph); + } + + cairo_list_del (&glyph_private->link); + free (glyph_private); +} + + +static cairo_status_t +_cairo_xcb_glyph_attach (cairo_xcb_connection_t *c, + cairo_scaled_glyph_t *glyph, + cairo_xcb_font_glyphset_info_t *info) +{ + cairo_xcb_glyph_private_t *priv; + + priv = _cairo_calloc (sizeof (*priv)); + if (unlikely (priv == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_scaled_glyph_attach_private (glyph, &priv->base, c, + _cairo_xcb_glyph_fini); + priv->glyphset = info; + + glyph->dev_private = info; + glyph->dev_private_key = c; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_xcb_surface_add_glyph (cairo_xcb_connection_t *connection, + cairo_scaled_font_t *font, + cairo_scaled_glyph_t **scaled_glyph_out) +{ + xcb_render_glyphinfo_t glyph_info; + uint32_t glyph_index; + uint8_t *data; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + cairo_scaled_glyph_t *scaled_glyph = *scaled_glyph_out; + cairo_image_surface_t *glyph_surface = scaled_glyph->surface; + cairo_bool_t already_had_glyph_surface; + cairo_xcb_font_glyphset_info_t *info; + + glyph_index = _cairo_scaled_glyph_index (scaled_glyph); + + /* check to see if we have a pending XRenderFreeGlyph for this glyph */ + info = _cairo_xcb_scaled_font_get_glyphset_info_for_pending_free_glyph (connection, font, glyph_index, glyph_surface); + if (info != NULL) + return _cairo_xcb_glyph_attach (connection, scaled_glyph, info); + + if (glyph_surface == NULL) { + status = _cairo_scaled_glyph_lookup (font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_METRICS | + CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL, /* foreground color */ + scaled_glyph_out); + if (unlikely (status)) + return status; + + scaled_glyph = *scaled_glyph_out; + glyph_surface = scaled_glyph->surface; + already_had_glyph_surface = FALSE; + } else { + already_had_glyph_surface = TRUE; + } + + info = _cairo_xcb_scaled_font_get_glyphset_info_for_format (connection, + font, + glyph_surface->format); + if (unlikely (info == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL; + } + +#if 0 + /* If the glyph surface has zero height or width, we create + * a clear 1x1 surface, to avoid various X server bugs. + */ + if (glyph_surface->width == 0 || glyph_surface->height == 0) { + cairo_surface_t *tmp_surface; + + tmp_surface = cairo_image_surface_create (info->format, 1, 1); + status = tmp_surface->status; + if (unlikely (status)) + goto BAIL; + + tmp_surface->device_transform = glyph_surface->base.device_transform; + tmp_surface->device_transform_inverse = glyph_surface->base.device_transform_inverse; + + glyph_surface = (cairo_image_surface_t *) tmp_surface; + } +#endif + + /* If the glyph format does not match the font format, then we + * create a temporary surface for the glyph image with the font's + * format. + */ + if (glyph_surface->format != info->format) { + glyph_surface = _cairo_image_surface_coerce_to_format (glyph_surface, + info->format); + status = glyph_surface->base.status; + if (unlikely (status)) + goto BAIL; + } + + /* XXX: FRAGILE: We're ignore device_transform scaling here. A bug? */ + glyph_info.x = _cairo_lround (glyph_surface->base.device_transform.x0); + glyph_info.y = _cairo_lround (glyph_surface->base.device_transform.y0); + glyph_info.width = glyph_surface->width; + glyph_info.height = glyph_surface->height; + glyph_info.x_off = scaled_glyph->x_advance; + glyph_info.y_off = scaled_glyph->y_advance; + + data = glyph_surface->data; + + /* flip formats around */ + switch (_cairo_xcb_get_glyphset_index_for_format (scaled_glyph->surface->format)) { + case GLYPHSET_INDEX_A1: + /* local bitmaps are always stored with bit == byte */ + if (_cairo_is_little_endian() != (connection->root->bitmap_format_bit_order == XCB_IMAGE_ORDER_LSB_FIRST)) { + int c = glyph_surface->stride * glyph_surface->height; + const uint8_t *d; + uint8_t *new, *n; + + if (c == 0) + break; + + new = _cairo_malloc (c); + if (unlikely (new == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL; + } + + n = new; + d = data; + do { + uint8_t b = *d++; + b = ((b << 1) & 0xaa) | ((b >> 1) & 0x55); + b = ((b << 2) & 0xcc) | ((b >> 2) & 0x33); + b = ((b << 4) & 0xf0) | ((b >> 4) & 0x0f); + *n++ = b; + } while (--c); + data = new; + } + break; + + case GLYPHSET_INDEX_A8: + break; + + case GLYPHSET_INDEX_ARGB32: + if (_cairo_is_little_endian() != (connection->root->image_byte_order == XCB_IMAGE_ORDER_LSB_FIRST)) { + unsigned int c = glyph_surface->stride * glyph_surface->height / 4; + const uint32_t *d; + uint32_t *new, *n; + + if (c == 0) + break; + + new = _cairo_malloc (4 * c); + if (unlikely (new == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL; + } + + n = new; + d = (uint32_t *) data; + do { + *n++ = bswap_32 (*d); + d++; + } while (--c); + data = (uint8_t *) new; + } + break; + + default: + ASSERT_NOT_REACHED; + break; + } + /* XXX assume X server wants pixman padding. Xft assumes this as well */ + + _cairo_xcb_connection_render_add_glyphs (connection, + info->glyphset, + 1, &glyph_index, &glyph_info, + glyph_surface->stride * glyph_surface->height, + data); + + if (data != glyph_surface->data) + free (data); + + status = _cairo_xcb_glyph_attach (connection, scaled_glyph, info); + + BAIL: + if (glyph_surface != scaled_glyph->surface) + cairo_surface_destroy (&glyph_surface->base); + + /* If the scaled glyph didn't already have a surface attached + * to it, release the created surface now that we have it + * uploaded to the X server. If the surface has already been + * there (e.g. because image backend requested it), leave it in + * the cache + */ + if (! already_had_glyph_surface) + _cairo_scaled_glyph_set_surface (scaled_glyph, font, NULL); + + return status; +} + +typedef void (*cairo_xcb_render_composite_text_func_t) + (cairo_xcb_connection_t *connection, + uint8_t op, + xcb_render_picture_t src, + xcb_render_picture_t dst, + xcb_render_pictformat_t mask_format, + xcb_render_glyphset_t glyphset, + int16_t src_x, + int16_t src_y, + uint32_t len, + uint8_t *cmd); + + +static cairo_status_t +_emit_glyphs_chunk (cairo_xcb_surface_t *dst, + cairo_operator_t op, + cairo_xcb_picture_t *src, + /* info for this chunk */ + cairo_xcb_glyph_t *glyphs, + int num_glyphs, + int width, + int estimated_req_size, + cairo_xcb_font_glyphset_info_t *info, + xcb_render_pictformat_t mask_format) +{ + cairo_xcb_render_composite_text_func_t composite_text_func; + uint8_t stack_buf[CAIRO_STACK_BUFFER_SIZE]; + uint8_t *buf = stack_buf; + x_glyph_elt_t *elt = NULL; /* silence compiler */ + uint32_t len; + int i; + + if (estimated_req_size > ARRAY_LENGTH (stack_buf)) { + buf = _cairo_malloc (estimated_req_size); + if (unlikely (buf == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + len = 0; + for (i = 0; i < num_glyphs; i++) { + if (_start_new_glyph_elt (i, &glyphs[i])) { + if (len & 3) + len += 4 - (len & 3); + + elt = (x_glyph_elt_t *) (buf + len); + elt->len = 0; + elt->deltax = glyphs[i].i.x; + elt->deltay = glyphs[i].i.y; + len += sizeof (x_glyph_elt_t); + } + + switch (width) { + case 1: *(uint8_t *) (buf + len) = glyphs[i].index; break; + case 2: *(uint16_t *) (buf + len) = glyphs[i].index; break; + default: + case 4: *(uint32_t *) (buf + len) = glyphs[i].index; break; + } + len += width; + elt->len++; + } + if (len & 3) + len += 4 - (len & 3); + + switch (width) { + case 1: + composite_text_func = _cairo_xcb_connection_render_composite_glyphs_8; + break; + case 2: + composite_text_func = _cairo_xcb_connection_render_composite_glyphs_16; + break; + default: + case 4: + composite_text_func = _cairo_xcb_connection_render_composite_glyphs_32; + break; + } + composite_text_func (dst->connection, + _render_operator (op), + src->picture, + dst->picture, + mask_format, + info->glyphset, + src->x + glyphs[0].i.x, + src->y + glyphs[0].i.y, + len, buf); + + if (buf != stack_buf) + free (buf); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_composite_glyphs (void *closure, + cairo_xcb_surface_t *dst, + cairo_operator_t op, + const cairo_pattern_t *pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_clip_t *clip) +{ + composite_glyphs_info_t *info = closure; + cairo_scaled_glyph_t *glyph_cache[64]; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + cairo_fixed_t x = 0, y = 0; + cairo_xcb_font_glyphset_info_t *glyphset_info = NULL, *this_glyphset_info; + const unsigned int max_request_size = dst->connection->maximum_request_length - 64; + cairo_xcb_picture_t *src; + + unsigned long max_index = 0; + int width = 1; + + unsigned int request_size = 0; + int i; + + if (dst->deferred_clear) { + status = _cairo_xcb_surface_clear (dst); + if (unlikely (status)) + return status; + } + + src = _cairo_xcb_picture_for_pattern (dst, pattern, extents); + if (unlikely (src->base.status)) + return src->base.status; + + memset (glyph_cache, 0, sizeof (glyph_cache)); + + for (i = 0; i < info->num_glyphs; i++) { + cairo_scaled_glyph_t *glyph; + unsigned long glyph_index = info->glyphs[i].index; + int cache_index = glyph_index % ARRAY_LENGTH (glyph_cache); + int old_width = width; + int this_x, this_y; + + glyph = glyph_cache[cache_index]; + if (glyph == NULL || + _cairo_scaled_glyph_index (glyph) != glyph_index) + { + status = _cairo_scaled_glyph_lookup (info->font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_METRICS, + NULL, /* foreground color */ + &glyph); + if (unlikely (status)) { + cairo_surface_destroy (&src->base); + return status; + } + + /* Send unseen glyphs to the server */ + if (glyph->dev_private_key != dst->connection) { + status = _cairo_xcb_surface_add_glyph (dst->connection, + info->font, + &glyph); + if (unlikely (status)) { + cairo_surface_destroy (&src->base); + return status; + } + } + + glyph_cache[cache_index] = glyph; + } + + this_x = _cairo_lround (info->glyphs[i].d.x) - dst_x; + this_y = _cairo_lround (info->glyphs[i].d.y) - dst_y; + + this_glyphset_info = glyph->dev_private; + if (glyphset_info == NULL) + glyphset_info = this_glyphset_info; + + /* Update max glyph index */ + if (glyph_index > max_index) { + max_index = glyph_index; + if (max_index >= 65536) + width = 4; + else if (max_index >= 256) + width = 2; + if (width != old_width) + request_size += (width - old_width) * i; + } + + /* If we will pass the max request size by adding this glyph, + * flush current glyphs. Note that we account for a + * possible element being added below. + * + * Also flush if changing glyphsets, as Xrender limits one mask + * format per request, so we can either break up, or use a + * wide-enough mask format. We do the former. One reason to + * prefer the latter is the fact that Xserver ADDs all glyphs + * to the mask first, and then composes that to final surface, + * though it's not a big deal. + * + * If the glyph has a coordinate which cannot be represented + * as a 16-bit offset from the previous glyph, flush the + * current chunk. The current glyph will be the first one in + * the next chunk, thus its coordinates will be an offset from + * the destination origin. This offset is guaranteed to be + * representable as 16-bit offset in _can_composite_glyphs(). + */ + if (request_size + width > max_request_size - _cairo_sz_x_glyph_elt_t || + this_x - x > INT16_MAX || this_x - x < INT16_MIN || + this_y - y > INT16_MAX || this_y - y < INT16_MIN || + this_glyphset_info != glyphset_info) + { + status = _emit_glyphs_chunk (dst, op, src, + info->glyphs, i, + old_width, request_size, + glyphset_info, + info->use_mask ? glyphset_info->xrender_format : 0); + if (unlikely (status)) { + cairo_surface_destroy (&src->base); + return status; + } + + info->glyphs += i; + info->num_glyphs -= i; + i = 0; + + max_index = info->glyphs[0].index; + width = max_index < 256 ? 1 : max_index < 65536 ? 2 : 4; + + request_size = 0; + + x = y = 0; + glyphset_info = this_glyphset_info; + } + + /* Convert absolute glyph position to relative-to-current-point + * position */ + info->glyphs[i].i.x = this_x - x; + info->glyphs[i].i.y = this_y - y; + + /* Start a new element for the first glyph, + * or for any glyph that has unexpected position, + * or if current element has too many glyphs. + * + * These same conditions are mirrored in _emit_glyphs_chunk(). + */ + if (_start_new_glyph_elt (i, &info->glyphs[i])) + request_size += _cairo_sz_x_glyph_elt_t; + + /* adjust current-position */ + x = this_x + glyph->x_advance; + y = this_y + glyph->y_advance; + + request_size += width; + } + + if (i) { + status = _emit_glyphs_chunk (dst, op, src, + info->glyphs, i, + width, request_size, + glyphset_info, + info->use_mask ? glyphset_info->xrender_format : 0); + } + + cairo_surface_destroy (&src->base); + + return status; +} + +cairo_int_status_t +_cairo_xcb_render_compositor_glyphs (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *composite, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_bool_t overlap) +{ + cairo_xcb_surface_t *surface = (cairo_xcb_surface_t *) composite->surface; + cairo_operator_t op = composite->op; + cairo_pattern_t *source = &composite->source_pattern.base; + cairo_int_status_t status; + + if (unlikely (! _operator_is_supported (surface->connection->flags, op))) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if ((surface->connection->flags & (CAIRO_XCB_RENDER_HAS_COMPOSITE_GLYPHS | CAIRO_XCB_RENDER_HAS_COMPOSITE)) == 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (surface->connection->flags & CAIRO_XCB_RENDER_HAS_COMPOSITE_GLYPHS) { + _cairo_scaled_font_freeze_cache (scaled_font); + + status = _can_composite_glyphs (surface, &composite->bounded, + scaled_font, glyphs, &num_glyphs); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) { + composite_glyphs_info_t info; + unsigned flags = 0; + + info.font = scaled_font; + info.glyphs = (cairo_xcb_glyph_t *) glyphs; + info.num_glyphs = num_glyphs; + info.use_mask = + overlap || + ! composite->is_bounded || + ! _cairo_clip_is_region(composite->clip); + + if (composite->mask.width > composite->unbounded.width || + composite->mask.height > composite->unbounded.height) + { + /* Glyphs are tricky since we do not directly control the + * geometry and their inked extents depend on the + * individual glyph-surface size. We must set a clip region + * so that the X server can trim the glyphs appropriately. + */ + flags |= FORCE_CLIP_REGION; + } + status = _clip_and_composite (surface, op, source, + _composite_glyphs, NULL, + &info, composite, + need_bounded_clip (composite) | + flags); + } + + _cairo_scaled_font_thaw_cache (scaled_font); + } + + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + assert (surface->connection->flags & CAIRO_XCB_RENDER_HAS_COMPOSITE); + status = + _cairo_xcb_surface_render_glyphs_via_mask (surface, op, source, + scaled_font, glyphs, num_glyphs, + composite); + } + + return status; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-xcb-surface.c b/local/recipes/libs/cairo/source/src/cairo-xcb-surface.c new file mode 100644 index 0000000000..302d3fbe09 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xcb-surface.c @@ -0,0 +1,1510 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Behdad Esfahbod + * Carl D. Worth + * Chris Wilson + * Karl Tomlinson , Mozilla Corporation + */ + +#include "cairoint.h" + +#include "cairo-xcb.h" +#include "cairo-xcb-private.h" + +#include "cairo-composite-rectangles-private.h" +#include "cairo-default-context-private.h" +#include "cairo-image-surface-inline.h" +#include "cairo-list-inline.h" +#include "cairo-surface-backend-private.h" +#include "cairo-compositor-private.h" + +/** + * SECTION:cairo-xcb + * @Title: XCB Surfaces + * @Short_Description: X Window System rendering using the XCB library + * @See_Also: #cairo_surface_t + * + * The XCB surface is used to render cairo graphics to X Window System + * windows and pixmaps using the XCB library. + * + * Note that the XCB surface automatically takes advantage of the X render + * extension if it is available. + **/ + +/** + * CAIRO_HAS_XCB_SURFACE: + * + * Defined if the xcb surface backend is available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.12 + **/ + +cairo_surface_t * +_cairo_xcb_surface_create_similar (void *abstract_other, + cairo_content_t content, + int width, + int height) +{ + cairo_xcb_surface_t *other = abstract_other; + cairo_xcb_surface_t *surface; + cairo_xcb_connection_t *connection; + xcb_pixmap_t pixmap; + cairo_status_t status; + + if (unlikely(width > XLIB_COORD_MAX || + height > XLIB_COORD_MAX || + width <= 0 || + height <= 0)) + return cairo_image_surface_create (_cairo_format_from_content (content), + width, height); + + if ((other->connection->flags & CAIRO_XCB_HAS_RENDER) == 0) + return _cairo_xcb_surface_create_similar_image (other, + _cairo_format_from_content (content), + width, height); + + connection = other->connection; + status = _cairo_xcb_connection_acquire (connection); + if (unlikely (status)) + return _cairo_surface_create_in_error (status); + + if (content == other->base.content) { + pixmap = _cairo_xcb_connection_create_pixmap (connection, + other->depth, + other->drawable, + width, height); + + surface = (cairo_xcb_surface_t *) + _cairo_xcb_surface_create_internal (other->screen, + pixmap, TRUE, + other->pixman_format, + other->xrender_format, + width, height); + } else { + cairo_format_t format; + pixman_format_code_t pixman_format; + + /* XXX find a compatible xrender format */ + switch (content) { + case CAIRO_CONTENT_ALPHA: + pixman_format = PIXMAN_a8; + format = CAIRO_FORMAT_A8; + break; + case CAIRO_CONTENT_COLOR: + pixman_format = PIXMAN_x8r8g8b8; + format = CAIRO_FORMAT_RGB24; + break; + default: + ASSERT_NOT_REACHED; + case CAIRO_CONTENT_COLOR_ALPHA: + pixman_format = PIXMAN_a8r8g8b8; + format = CAIRO_FORMAT_ARGB32; + break; + } + + pixmap = _cairo_xcb_connection_create_pixmap (connection, + PIXMAN_FORMAT_DEPTH (pixman_format), + other->drawable, + width, height); + + surface = (cairo_xcb_surface_t *) + _cairo_xcb_surface_create_internal (other->screen, + pixmap, TRUE, + pixman_format, + connection->standard_formats[format], + width, height); + } + + if (unlikely (surface->base.status)) + xcb_free_pixmap (connection->xcb_connection, pixmap); + + _cairo_xcb_connection_release (connection); + + return &surface->base; +} + +cairo_surface_t * +_cairo_xcb_surface_create_similar_image (void *abstract_other, + cairo_format_t format, + int width, + int height) +{ + cairo_xcb_surface_t *other = abstract_other; + cairo_xcb_connection_t *connection = other->connection; + + cairo_xcb_shm_info_t *shm_info; + cairo_image_surface_t *image; + cairo_status_t status; + pixman_format_code_t pixman_format; + + if (unlikely(width > XLIB_COORD_MAX || + height > XLIB_COORD_MAX || + width <= 0 || + height <= 0)) + return NULL; + + pixman_format = _cairo_format_to_pixman_format_code (format); + + status = _cairo_xcb_shm_image_create (connection, pixman_format, + width, height, &image, + &shm_info); + if (unlikely (status)) + return _cairo_surface_create_in_error (status); + + if (! image->base.is_clear) { + memset (image->data, 0, image->stride * image->height); + image->base.is_clear = TRUE; + } + + return &image->base; +} + +static cairo_status_t +_cairo_xcb_surface_finish (void *abstract_surface) +{ + cairo_xcb_surface_t *surface = abstract_surface; + cairo_status_t status; + + if (surface->fallback != NULL) { + cairo_surface_finish (&surface->fallback->base); + cairo_surface_destroy (&surface->fallback->base); + } + _cairo_boxes_fini (&surface->fallback_damage); + + cairo_list_del (&surface->link); + + status = _cairo_xcb_connection_acquire (surface->connection); + if (status == CAIRO_STATUS_SUCCESS) { + if (surface->picture != XCB_NONE) { + _cairo_xcb_connection_render_free_picture (surface->connection, + surface->picture); + } + + if (surface->owns_pixmap) + xcb_free_pixmap (surface->connection->xcb_connection, surface->drawable); + _cairo_xcb_connection_release (surface->connection); + } + + _cairo_xcb_connection_destroy (surface->connection); + + return status; +} + +static void +_destroy_image (pixman_image_t *image, void *data) +{ + free (data); +} + +#if CAIRO_HAS_XCB_SHM_FUNCTIONS +static cairo_surface_t * +_cairo_xcb_surface_create_shm_image (cairo_xcb_connection_t *connection, + pixman_format_code_t pixman_format, + int width, int height, + cairo_bool_t might_reuse, + cairo_xcb_shm_info_t **shm_info_out) +{ + cairo_surface_t *image; + cairo_xcb_shm_info_t *shm_info; + cairo_int_status_t status; + size_t stride; + + *shm_info_out = NULL; + + stride = CAIRO_STRIDE_FOR_WIDTH_BPP (width, + PIXMAN_FORMAT_BPP (pixman_format)); + status = _cairo_xcb_connection_allocate_shm_info (connection, + stride * height, + might_reuse, + &shm_info); + if (unlikely (status)) { + if (status == CAIRO_INT_STATUS_UNSUPPORTED) + return NULL; + + return _cairo_surface_create_in_error (status); + } + + image = _cairo_image_surface_create_with_pixman_format (shm_info->mem, + pixman_format, + width, height, + stride); + if (unlikely (image->status)) { + _cairo_xcb_shm_info_destroy (shm_info); + return image; + } + + status = _cairo_user_data_array_set_data (&image->user_data, + (const cairo_user_data_key_t *) connection, + shm_info, + (cairo_destroy_func_t) _cairo_xcb_shm_info_destroy); + if (unlikely (status)) { + cairo_surface_destroy (image); + _cairo_xcb_shm_info_destroy (shm_info); + return _cairo_surface_create_in_error (status); + } + + *shm_info_out = shm_info; + return image; +} +#endif + +static cairo_surface_t * +_get_shm_image (cairo_xcb_surface_t *surface, + int x, int y, + int width, int height) +{ +#if CAIRO_HAS_XCB_SHM_FUNCTIONS + cairo_xcb_shm_info_t *shm_info; + cairo_surface_t *image; + cairo_status_t status; + + if ((surface->connection->flags & CAIRO_XCB_HAS_SHM) == 0) + return NULL; + + image = _cairo_xcb_surface_create_shm_image (surface->connection, + surface->pixman_format, + width, height, + TRUE, + &shm_info); + if (unlikely (image == NULL || image->status)) + goto done; + + status = _cairo_xcb_connection_shm_get_image (surface->connection, + surface->drawable, + x, y, + width, height, + shm_info->shm, + shm_info->offset); + if (unlikely (status)) { + cairo_surface_destroy (image); + image = _cairo_surface_create_in_error (status); + } + +done: + return image; +#else + return NULL; +#endif +} + +static cairo_surface_t * +_get_image (cairo_xcb_surface_t *surface, + cairo_bool_t use_shm, + int x, int y, + int width, int height) +{ + cairo_surface_t *image; + cairo_xcb_connection_t *connection; + xcb_get_image_reply_t *reply; + cairo_int_status_t status; + + assert (surface->fallback == NULL); + assert (x >= 0); + assert (y >= 0); + assert (x + width <= surface->width); + assert (y + height <= surface->height); + + if (surface->deferred_clear) { + image = + _cairo_image_surface_create_with_pixman_format (NULL, + surface->pixman_format, + width, height, + 0); + if (surface->deferred_clear_color.alpha_short > 0x00ff) { + cairo_solid_pattern_t solid; + + _cairo_pattern_init_solid (&solid, &surface->deferred_clear_color); + status = _cairo_surface_paint (image, + CAIRO_OPERATOR_SOURCE, + &solid.base, + NULL); + if (unlikely (status)) { + cairo_surface_destroy (image); + image = _cairo_surface_create_in_error (status); + } + } + return image; + } + + connection = surface->connection; + + status = _cairo_xcb_connection_acquire (connection); + if (unlikely (status)) + return _cairo_surface_create_in_error (status); + + if (use_shm) { + image = _get_shm_image (surface, x, y, width, height); + if (image) { + if (image->status == CAIRO_STATUS_SUCCESS) { + _cairo_xcb_connection_release (connection); + return image; + } + cairo_surface_destroy (image); + } + } + + reply =_cairo_xcb_connection_get_image (connection, + surface->drawable, + x, y, + width, height); + + if (reply == NULL && ! surface->owns_pixmap) { + /* xcb_get_image_t from a window is dangerous because it can + * produce errors if the window is unmapped or partially + * outside the screen. We could check for errors and + * retry, but to keep things simple, we just create a + * temporary pixmap + * + * If we hit this fallback too often, we should remember so and + * skip the round-trip from the above GetImage request, + * similar to what cairo-xlib does. + */ + xcb_pixmap_t pixmap; + xcb_gcontext_t gc; + + gc = _cairo_xcb_screen_get_gc (surface->screen, + surface->drawable, + surface->depth); + pixmap = _cairo_xcb_connection_create_pixmap (connection, + surface->depth, + surface->drawable, + width, height); + + /* XXX IncludeInferiors? */ + _cairo_xcb_connection_copy_area (connection, + surface->drawable, + pixmap, gc, + x, y, + 0, 0, + width, height); + + _cairo_xcb_screen_put_gc (surface->screen, surface->depth, gc); + + reply = _cairo_xcb_connection_get_image (connection, + pixmap, + 0, 0, + width, height); + xcb_free_pixmap (connection->xcb_connection, pixmap); + } + + if (unlikely (reply == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto FAIL; + } + + /* XXX byte swap */ + /* XXX format conversion */ + assert (reply->depth == surface->depth); + + image = _cairo_image_surface_create_with_pixman_format + (xcb_get_image_data (reply), + surface->pixman_format, + width, height, + CAIRO_STRIDE_FOR_WIDTH_BPP (width, + PIXMAN_FORMAT_BPP (surface->pixman_format))); + status = image->status; + if (unlikely (status)) { + free (reply); + goto FAIL; + } + + /* XXX */ + pixman_image_set_destroy_function (((cairo_image_surface_t *)image)->pixman_image, _destroy_image, reply); + + _cairo_xcb_connection_release (connection); + + return image; + +FAIL: + _cairo_xcb_connection_release (connection); + return _cairo_surface_create_in_error (status); +} + +static cairo_surface_t * +_cairo_xcb_surface_source (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_xcb_surface_t *surface = abstract_surface; + + if (extents) { + extents->x = extents->y = 0; + extents->width = surface->width; + extents->height = surface->height; + } + + return &surface->base; +} + +static cairo_status_t +_cairo_xcb_surface_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + cairo_xcb_surface_t *surface = abstract_surface; + cairo_surface_t *image; + + if (surface->fallback != NULL) { + image = cairo_surface_reference (&surface->fallback->base); + goto DONE; + } + + image = _cairo_surface_has_snapshot (&surface->base, + &_cairo_image_surface_backend); + if (image != NULL) { + image = cairo_surface_reference (image); + goto DONE; + } + + image = _get_image (surface, FALSE, 0, 0, surface->width, surface->height); + if (unlikely (image->status)) + return image->status; + + _cairo_surface_attach_snapshot (&surface->base, image, NULL); + +DONE: + *image_out = (cairo_image_surface_t *) image; + *image_extra = NULL; + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_xcb_surface_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *image_extra) +{ + cairo_surface_destroy (&image->base); +} + +cairo_bool_t +_cairo_xcb_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_xcb_surface_t *surface = abstract_surface; + + extents->x = extents->y = 0; + extents->width = surface->width; + extents->height = surface->height; + return TRUE; +} + +static void +_cairo_xcb_surface_get_font_options (void *abstract_surface, + cairo_font_options_t *options) +{ + cairo_xcb_surface_t *surface = abstract_surface; + + *options = *_cairo_xcb_screen_get_font_options (surface->screen); +} + +static cairo_status_t +_put_shm_image (cairo_xcb_surface_t *surface, + xcb_gcontext_t gc, + cairo_image_surface_t *image) +{ +#if CAIRO_HAS_XCB_SHM_FUNCTIONS + cairo_xcb_shm_info_t *shm_info; + + shm_info = _cairo_user_data_array_get_data (&image->base.user_data, + (const cairo_user_data_key_t *) surface->connection); + if (shm_info == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + _cairo_xcb_connection_shm_put_image (surface->connection, + surface->drawable, + gc, + surface->width, surface->height, + 0, 0, + image->width, image->height, + image->base.device_transform_inverse.x0, + image->base.device_transform_inverse.y0, + image->depth, + shm_info->shm, + shm_info->offset); + + return CAIRO_STATUS_SUCCESS; +#else + return CAIRO_INT_STATUS_UNSUPPORTED; +#endif +} + +static cairo_status_t +_put_image (cairo_xcb_surface_t *surface, + cairo_image_surface_t *image) +{ + cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS; + + /* XXX track damaged region? */ + + status = _cairo_xcb_connection_acquire (surface->connection); + if (unlikely (status)) + return status; + + if (image->pixman_format == surface->pixman_format) { + xcb_gcontext_t gc; + + assert (image->depth == surface->depth); + assert (image->stride == (int) CAIRO_STRIDE_FOR_WIDTH_BPP (image->width, PIXMAN_FORMAT_BPP (image->pixman_format))); + + gc = _cairo_xcb_screen_get_gc (surface->screen, + surface->drawable, + surface->depth); + + status = _put_shm_image (surface, gc, image); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + _cairo_xcb_connection_put_image (surface->connection, + surface->drawable, gc, + image->width, image->height, + image->base.device_transform_inverse.x0, + image->base.device_transform_inverse.y0, + image->depth, + image->stride, + image->data); + status = CAIRO_STATUS_SUCCESS; + } + + _cairo_xcb_screen_put_gc (surface->screen, surface->depth, gc); + } else { + ASSERT_NOT_REACHED; + } + + _cairo_xcb_connection_release (surface->connection); + return status; +} + +static cairo_int_status_t +_put_shm_image_boxes (cairo_xcb_surface_t *surface, + cairo_image_surface_t *image, + xcb_gcontext_t gc, + cairo_boxes_t *boxes) +{ +#if CAIRO_HAS_XCB_SHM_FUNCTIONS + cairo_xcb_shm_info_t *shm_info; + + shm_info = _cairo_user_data_array_get_data (&image->base.user_data, + (const cairo_user_data_key_t *) surface->connection); + if (shm_info != NULL) { + struct _cairo_boxes_chunk *chunk; + + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + int i; + + for (i = 0; i < chunk->count; i++) { + cairo_box_t *b = &chunk->base[i]; + int x = _cairo_fixed_integer_part (b->p1.x); + int y = _cairo_fixed_integer_part (b->p1.y); + int width = _cairo_fixed_integer_part (b->p2.x - b->p1.x); + int height = _cairo_fixed_integer_part (b->p2.y - b->p1.y); + + _cairo_xcb_connection_shm_put_image (surface->connection, + surface->drawable, + gc, + surface->width, surface->height, + x, y, + width, height, + x, y, + image->depth, + shm_info->shm, + shm_info->offset); + } + } + return CAIRO_INT_STATUS_SUCCESS; + } +#endif + + return CAIRO_INT_STATUS_UNSUPPORTED; +} + +static cairo_status_t +_put_image_boxes (cairo_xcb_surface_t *surface, + cairo_image_surface_t *image, + cairo_boxes_t *boxes) +{ + cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS; + xcb_gcontext_t gc; + + if (boxes->num_boxes == 0) + return CAIRO_STATUS_SUCCESS; + + /* XXX track damaged region? */ + + status = _cairo_xcb_connection_acquire (surface->connection); + if (unlikely (status)) + return status; + + assert (image->pixman_format == surface->pixman_format); + assert (image->depth == surface->depth); + assert (image->stride == (int) CAIRO_STRIDE_FOR_WIDTH_BPP (image->width, PIXMAN_FORMAT_BPP (image->pixman_format))); + + gc = _cairo_xcb_screen_get_gc (surface->screen, + surface->drawable, + surface->depth); + + status = _put_shm_image_boxes (surface, image, gc, boxes); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + struct _cairo_boxes_chunk *chunk; + + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + int i; + + for (i = 0; i < chunk->count; i++) { + cairo_box_t *b = &chunk->base[i]; + int x = _cairo_fixed_integer_part (b->p1.x); + int y = _cairo_fixed_integer_part (b->p1.y); + int width = _cairo_fixed_integer_part (b->p2.x - b->p1.x); + int height = _cairo_fixed_integer_part (b->p2.y - b->p1.y); + _cairo_xcb_connection_put_subimage (surface->connection, + surface->drawable, gc, + x, y, + width, height, + PIXMAN_FORMAT_BPP (image->pixman_format) / 8, + image->stride, + x, y, + image->depth, + image->data); + + } + } + status = CAIRO_STATUS_SUCCESS; + } + + _cairo_xcb_screen_put_gc (surface->screen, surface->depth, gc); + _cairo_xcb_connection_release (surface->connection); + return status; +} + +static cairo_status_t +_cairo_xcb_surface_flush (void *abstract_surface, + unsigned flags) +{ + cairo_xcb_surface_t *surface = abstract_surface; + cairo_status_t status; + + if (flags) + return CAIRO_STATUS_SUCCESS; + + if (likely (surface->fallback == NULL)) { + status = CAIRO_STATUS_SUCCESS; + if (! surface->base.finished && surface->deferred_clear) + status = _cairo_xcb_surface_clear (surface); + + return status; + } + + status = surface->base.status; + if (status == CAIRO_STATUS_SUCCESS && + (! surface->base._finishing || ! surface->owns_pixmap)) { + status = cairo_surface_status (&surface->fallback->base); + + if (status == CAIRO_STATUS_SUCCESS) + status = _cairo_bentley_ottmann_tessellate_boxes (&surface->fallback_damage, + CAIRO_FILL_RULE_WINDING, + &surface->fallback_damage); + + if (status == CAIRO_STATUS_SUCCESS) + status = _put_image_boxes (surface, + surface->fallback, + &surface->fallback_damage); + + if (status == CAIRO_STATUS_SUCCESS && ! surface->base._finishing) { + _cairo_surface_attach_snapshot (&surface->base, + &surface->fallback->base, + cairo_surface_finish); + } + } + + _cairo_boxes_clear (&surface->fallback_damage); + cairo_surface_destroy (&surface->fallback->base); + surface->fallback = NULL; + + return status; +} + +static cairo_image_surface_t * +_cairo_xcb_surface_map_to_image (void *abstract_surface, + const cairo_rectangle_int_t *extents) +{ + cairo_xcb_surface_t *surface = abstract_surface; + cairo_surface_t *image; + cairo_status_t status; + + if (surface->fallback) + return _cairo_surface_map_to_image (&surface->fallback->base, extents); + + image = _get_image (surface, TRUE, + extents->x, extents->y, + extents->width, extents->height); + status = cairo_surface_status (image); + if (unlikely (status)) { + cairo_surface_destroy(image); + return _cairo_image_surface_create_in_error (status); + } + + /* Do we have a deferred clear and this image surface does NOT cover the + * whole xcb surface? Have to apply the clear in that case, else + * uploading the image will handle the problem for us. + */ + if (surface->deferred_clear && + ! (extents->width == surface->width && + extents->height == surface->height)) { + status = _cairo_xcb_surface_clear (surface); + if (unlikely (status)) { + cairo_surface_destroy(image); + return _cairo_image_surface_create_in_error (status); + } + } + surface->deferred_clear = FALSE; + + cairo_surface_set_device_offset (image, -extents->x, -extents->y); + return (cairo_image_surface_t *) image; +} + +static cairo_int_status_t +_cairo_xcb_surface_unmap (void *abstract_surface, + cairo_image_surface_t *image) +{ + cairo_xcb_surface_t *surface = abstract_surface; + cairo_int_status_t status; + + if (surface->fallback) + return _cairo_surface_unmap_image (&surface->fallback->base, image); + + status = _put_image (abstract_surface, image); + + cairo_surface_finish (&image->base); + cairo_surface_destroy (&image->base); + + return status; +} + +static cairo_surface_t * +_cairo_xcb_surface_fallback (cairo_xcb_surface_t *surface, + cairo_composite_rectangles_t *composite) +{ + cairo_image_surface_t *image; + cairo_status_t status; + + status = _cairo_composite_rectangles_add_to_damage (composite, + &surface->fallback_damage); + if (unlikely (status)) + return _cairo_surface_create_in_error (status); + + if (surface->fallback) + return &surface->fallback->base; + + image = (cairo_image_surface_t *) + _get_image (surface, TRUE, 0, 0, surface->width, surface->height); + + if (image->base.status != CAIRO_STATUS_SUCCESS) + return &image->base; + + /* If there was a deferred clear, _get_image applied it */ + surface->deferred_clear = FALSE; + + surface->fallback = image; + + return &surface->fallback->base; +} + +static cairo_int_status_t +_cairo_xcb_fallback_compositor_paint (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents) +{ + cairo_xcb_surface_t *surface = (cairo_xcb_surface_t *) extents->surface; + cairo_surface_t *fallback = _cairo_xcb_surface_fallback (surface, extents); + + return _cairo_surface_paint (fallback, extents->op, + &extents->source_pattern.base, + extents->clip); +} + +static cairo_int_status_t +_cairo_xcb_fallback_compositor_mask (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents) +{ + cairo_xcb_surface_t *surface = (cairo_xcb_surface_t *) extents->surface; + cairo_surface_t *fallback = _cairo_xcb_surface_fallback (surface, extents); + + return _cairo_surface_mask (fallback, extents->op, + &extents->source_pattern.base, + &extents->mask_pattern.base, + extents->clip); +} + +static cairo_int_status_t +_cairo_xcb_fallback_compositor_stroke (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_xcb_surface_t *surface = (cairo_xcb_surface_t *) extents->surface; + cairo_surface_t *fallback = _cairo_xcb_surface_fallback (surface, extents); + + return _cairo_surface_stroke (fallback, extents->op, + &extents->source_pattern.base, + path, style, ctm, ctm_inverse, + tolerance, antialias, + extents->clip); +} + +static cairo_int_status_t +_cairo_xcb_fallback_compositor_fill (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_xcb_surface_t *surface = (cairo_xcb_surface_t *) extents->surface; + cairo_surface_t *fallback = _cairo_xcb_surface_fallback (surface, extents); + + return _cairo_surface_fill (fallback, extents->op, + &extents->source_pattern.base, + path, fill_rule, tolerance, + antialias, extents->clip); +} + +static cairo_int_status_t +_cairo_xcb_fallback_compositor_glyphs (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_bool_t overlap) +{ + cairo_xcb_surface_t *surface = (cairo_xcb_surface_t *) extents->surface; + cairo_surface_t *fallback = _cairo_xcb_surface_fallback (surface, extents); + + return _cairo_surface_show_text_glyphs (fallback, extents->op, + &extents->source_pattern.base, + NULL, 0, glyphs, num_glyphs, + NULL, 0, 0, + scaled_font, extents->clip); +} + +static const cairo_compositor_t _cairo_xcb_fallback_compositor = { + &__cairo_no_compositor, + + _cairo_xcb_fallback_compositor_paint, + _cairo_xcb_fallback_compositor_mask, + _cairo_xcb_fallback_compositor_stroke, + _cairo_xcb_fallback_compositor_fill, + _cairo_xcb_fallback_compositor_glyphs, +}; + +static const cairo_compositor_t _cairo_xcb_render_compositor = { + &_cairo_xcb_fallback_compositor, + + _cairo_xcb_render_compositor_paint, + _cairo_xcb_render_compositor_mask, + _cairo_xcb_render_compositor_stroke, + _cairo_xcb_render_compositor_fill, + _cairo_xcb_render_compositor_glyphs, +}; + +static inline const cairo_compositor_t * +get_compositor (cairo_surface_t **s) +{ + cairo_xcb_surface_t *surface = (cairo_xcb_surface_t * )*s; + if (surface->fallback) { + *s = &surface->fallback->base; + return ((cairo_image_surface_t *) *s)->compositor; + } + + return &_cairo_xcb_render_compositor; +} + +static cairo_int_status_t +_cairo_xcb_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_surface_t *surface = abstract_surface; + const cairo_compositor_t *compositor = get_compositor (&surface); + return _cairo_compositor_paint (compositor, surface, op, source, clip); +} + +static cairo_int_status_t +_cairo_xcb_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_surface_t *surface = abstract_surface; + const cairo_compositor_t *compositor = get_compositor (&surface); + return _cairo_compositor_mask (compositor, surface, op, source, mask, clip); +} + +static cairo_int_status_t +_cairo_xcb_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_surface_t *surface = abstract_surface; + const cairo_compositor_t *compositor = get_compositor (&surface); + return _cairo_compositor_stroke (compositor, surface, op, source, + path, style, ctm, ctm_inverse, + tolerance, antialias, clip); +} + +static cairo_int_status_t +_cairo_xcb_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t*path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_surface_t *surface = abstract_surface; + const cairo_compositor_t *compositor = get_compositor (&surface); + return _cairo_compositor_fill (compositor, surface, op, + source, path, fill_rule, + tolerance, antialias, clip); +} + +static cairo_int_status_t +_cairo_xcb_surface_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_surface_t *surface = abstract_surface; + const cairo_compositor_t *compositor = get_compositor (&surface); + return _cairo_compositor_glyphs (compositor, surface, op, + source, glyphs, num_glyphs, + scaled_font, clip); +} + +const cairo_surface_backend_t _cairo_xcb_surface_backend = { + CAIRO_SURFACE_TYPE_XCB, + _cairo_xcb_surface_finish, + _cairo_default_context_create, + + _cairo_xcb_surface_create_similar, + _cairo_xcb_surface_create_similar_image, + _cairo_xcb_surface_map_to_image, + _cairo_xcb_surface_unmap, + + _cairo_xcb_surface_source, + _cairo_xcb_surface_acquire_source_image, + _cairo_xcb_surface_release_source_image, + NULL, /* snapshot */ + + + NULL, /* copy_page */ + NULL, /* show_page */ + + _cairo_xcb_surface_get_extents, + _cairo_xcb_surface_get_font_options, + + _cairo_xcb_surface_flush, + NULL, + + _cairo_xcb_surface_paint, + _cairo_xcb_surface_mask, + _cairo_xcb_surface_stroke, + _cairo_xcb_surface_fill, + NULL, /* fill-stroke */ + _cairo_xcb_surface_glyphs, +}; + +cairo_surface_t * +_cairo_xcb_surface_create_internal (cairo_xcb_screen_t *screen, + xcb_drawable_t drawable, + cairo_bool_t owns_pixmap, + pixman_format_code_t pixman_format, + xcb_render_pictformat_t xrender_format, + int width, + int height) +{ + cairo_xcb_surface_t *surface; + + surface = _cairo_calloc (sizeof (cairo_xcb_surface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_surface_init (&surface->base, + &_cairo_xcb_surface_backend, + &screen->connection->device, + _cairo_content_from_pixman_format (pixman_format), + FALSE); /* is_vector */ + + surface->connection = _cairo_xcb_connection_reference (screen->connection); + surface->screen = screen; + cairo_list_add (&surface->link, &screen->surfaces); + + surface->drawable = drawable; + surface->owns_pixmap = owns_pixmap; + + surface->deferred_clear = FALSE; + surface->deferred_clear_color = *CAIRO_COLOR_TRANSPARENT; + + surface->width = width; + surface->height = height; + surface->depth = PIXMAN_FORMAT_DEPTH (pixman_format); + + surface->picture = XCB_NONE; + if (screen->connection->force_precision != -1) + surface->precision = screen->connection->force_precision; + else + surface->precision = XCB_RENDER_POLY_MODE_IMPRECISE; + + surface->pixman_format = pixman_format; + surface->xrender_format = xrender_format; + + surface->fallback = NULL; + _cairo_boxes_init (&surface->fallback_damage); + + return &surface->base; +} + +static xcb_screen_t * +_cairo_xcb_screen_from_visual (xcb_connection_t *connection, + xcb_visualtype_t *visual, + int *depth) +{ + xcb_depth_iterator_t d; + xcb_screen_iterator_t s; + + s = xcb_setup_roots_iterator (xcb_get_setup (connection)); + for (; s.rem; xcb_screen_next (&s)) { + if (s.data->root_visual == visual->visual_id) { + *depth = s.data->root_depth; + return s.data; + } + + d = xcb_screen_allowed_depths_iterator(s.data); + for (; d.rem; xcb_depth_next (&d)) { + xcb_visualtype_iterator_t v = xcb_depth_visuals_iterator (d.data); + + for (; v.rem; xcb_visualtype_next (&v)) { + if (v.data->visual_id == visual->visual_id) { + *depth = d.data->depth; + return s.data; + } + } + } + } + + return NULL; +} + +/** + * cairo_xcb_surface_create: + * @connection: an XCB connection + * @drawable: an XCB drawable + * @visual: the visual to use for drawing to @drawable. The depth + * of the visual must match the depth of the drawable. + * Currently, only TrueColor visuals are fully supported. + * @width: the current width of @drawable + * @height: the current height of @drawable + * + * Creates an XCB surface that draws to the given drawable. + * The way that colors are represented in the drawable is specified + * by the provided visual. + * + * Note: If @drawable is a Window, then the function + * cairo_xcb_surface_set_size() must be called whenever the size of the + * window changes. + * + * When @drawable is a Window containing child windows then drawing to + * the created surface will be clipped by those child windows. When + * the created surface is used as a source, the contents of the + * children will be included. + * + * Return value: a pointer to the newly created surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if an error such as out of memory + * occurs. You can use cairo_surface_status() to check for this. + * + * Since: 1.12 + **/ +cairo_surface_t * +cairo_xcb_surface_create (xcb_connection_t *connection, + xcb_drawable_t drawable, + xcb_visualtype_t *visual, + int width, + int height) +{ + cairo_xcb_screen_t *screen; + xcb_screen_t *xcb_screen; + cairo_format_masks_t image_masks; + pixman_format_code_t pixman_format; + xcb_render_pictformat_t xrender_format; + int depth; + + if (xcb_connection_has_error (connection)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_WRITE_ERROR)); + + if (unlikely (width > XLIB_COORD_MAX || height > XLIB_COORD_MAX)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + if (unlikely (width <= 0 || height <= 0)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + + xcb_screen = _cairo_xcb_screen_from_visual (connection, visual, &depth); + if (unlikely (xcb_screen == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_VISUAL)); + + image_masks.alpha_mask = 0; + image_masks.red_mask = visual->red_mask; + image_masks.green_mask = visual->green_mask; + image_masks.blue_mask = visual->blue_mask; + if (depth == 32) /* XXX visuals have no alpha! */ + image_masks.alpha_mask = + 0xffffffff & ~(visual->red_mask | visual->green_mask | visual->blue_mask); + if (depth > 16) + image_masks.bpp = 32; + else if (depth > 8) + image_masks.bpp = 16; + else if (depth > 1) + image_masks.bpp = 8; + else + image_masks.bpp = 1; + + if (! _pixman_format_from_masks (&image_masks, &pixman_format)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT)); + + screen = _cairo_xcb_screen_get (connection, xcb_screen); + if (unlikely (screen == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + xrender_format = + _cairo_xcb_connection_get_xrender_format_for_visual (screen->connection, + visual->visual_id); + + return _cairo_xcb_surface_create_internal (screen, drawable, FALSE, + pixman_format, + xrender_format, + width, height); +} + +/** + * cairo_xcb_surface_create_for_bitmap: + * @connection: an XCB connection + * @screen: the XCB screen associated with @bitmap + * @bitmap: an XCB drawable (a Pixmap with depth 1) + * @width: the current width of @bitmap + * @height: the current height of @bitmap + * + * Creates an XCB surface that draws to the given bitmap. + * This will be drawn to as a %CAIRO_FORMAT_A1 object. + * + * Return value: a pointer to the newly created surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if an error such as out of memory + * occurs. You can use cairo_surface_status() to check for this. + * + * Since: 1.12 + **/ +cairo_surface_t * +cairo_xcb_surface_create_for_bitmap (xcb_connection_t *connection, + xcb_screen_t *screen, + xcb_pixmap_t bitmap, + int width, + int height) +{ + cairo_xcb_screen_t *cairo_xcb_screen; + + if (xcb_connection_has_error (connection)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_WRITE_ERROR)); + + if (width > XLIB_COORD_MAX || height > XLIB_COORD_MAX) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + if (unlikely (width <= 0 || height <= 0)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + + cairo_xcb_screen = _cairo_xcb_screen_get (connection, screen); + if (unlikely (cairo_xcb_screen == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + return _cairo_xcb_surface_create_internal (cairo_xcb_screen, bitmap, FALSE, + PIXMAN_a1, + cairo_xcb_screen->connection->standard_formats[CAIRO_FORMAT_A1], + width, height); +} + +/** + * cairo_xcb_surface_create_with_xrender_format: + * @connection: an XCB connection + * @drawable: an XCB drawable + * @screen: the XCB screen associated with @drawable + * @format: the picture format to use for drawing to @drawable. The + * depth of @format mush match the depth of the drawable. + * @width: the current width of @drawable + * @height: the current height of @drawable + * + * Creates an XCB surface that draws to the given drawable. + * The way that colors are represented in the drawable is specified + * by the provided picture format. + * + * Note: If @drawable is a Window, then the function + * cairo_xcb_surface_set_size() must be called whenever the size of the + * window changes. + * + * When @drawable is a Window containing child windows then drawing to + * the created surface will be clipped by those child windows. When + * the created surface is used as a source, the contents of the + * children will be included. + * + * Return value: a pointer to the newly created surface. The caller + * owns the surface and should call cairo_surface_destroy() when done + * with it. + * + * This function always returns a valid pointer, but it will return a + * pointer to a "nil" surface if an error such as out of memory + * occurs. You can use cairo_surface_status() to check for this. + * + * Since: 1.12 + **/ +cairo_surface_t * +cairo_xcb_surface_create_with_xrender_format (xcb_connection_t *connection, + xcb_screen_t *screen, + xcb_drawable_t drawable, + xcb_render_pictforminfo_t *format, + int width, + int height) +{ + cairo_xcb_screen_t *cairo_xcb_screen; + cairo_format_masks_t image_masks; + pixman_format_code_t pixman_format; + + if (xcb_connection_has_error (connection)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_WRITE_ERROR)); + + if (width > XLIB_COORD_MAX || height > XLIB_COORD_MAX) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + if (unlikely (width <= 0 || height <= 0)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + + image_masks.alpha_mask = + (unsigned long) format->direct.alpha_mask << format->direct.alpha_shift; + image_masks.red_mask = + (unsigned long) format->direct.red_mask << format->direct.red_shift; + image_masks.green_mask = + (unsigned long) format->direct.green_mask << format->direct.green_shift; + image_masks.blue_mask = + (unsigned long) format->direct.blue_mask << format->direct.blue_shift; +#if 0 + image_masks.bpp = format->depth; +#else + if (format->depth > 16) + image_masks.bpp = 32; + else if (format->depth > 8) + image_masks.bpp = 16; + else if (format->depth > 1) + image_masks.bpp = 8; + else + image_masks.bpp = 1; +#endif + + if (! _pixman_format_from_masks (&image_masks, &pixman_format)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT)); + + cairo_xcb_screen = _cairo_xcb_screen_get (connection, screen); + if (unlikely (cairo_xcb_screen == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + return _cairo_xcb_surface_create_internal (cairo_xcb_screen, + drawable, + FALSE, + pixman_format, + format->id, + width, height); +} + +/* This does the necessary fixup when a surface's drawable or size changed. */ +static void +_drawable_changed (cairo_xcb_surface_t *surface) +{ + _cairo_surface_set_error (&surface->base, + _cairo_surface_begin_modification (&surface->base)); + _cairo_boxes_clear (&surface->fallback_damage); + cairo_surface_destroy (&surface->fallback->base); + + surface->deferred_clear = FALSE; + surface->fallback = NULL; +} + +/** + * cairo_xcb_surface_set_size: + * @surface: a #cairo_surface_t for the XCB backend + * @width: the new width of the surface + * @height: the new height of the surface + * + * Informs cairo of the new size of the XCB drawable underlying the + * surface. For a surface created for a window (rather than a pixmap), + * this function must be called each time the size of the window + * changes. (For a subwindow, you are normally resizing the window + * yourself, but for a toplevel window, it is necessary to listen for + * ConfigureNotify events.) + * + * A pixmap can never change size, so it is never necessary to call + * this function on a surface created for a pixmap. + * + * If cairo_surface_flush() wasn't called, some pending operations + * might be discarded. + * + * Since: 1.12 + **/ +void +cairo_xcb_surface_set_size (cairo_surface_t *abstract_surface, + int width, + int height) +{ + cairo_xcb_surface_t *surface; + + if (unlikely (abstract_surface->status)) + return; + if (unlikely (abstract_surface->finished)) { + _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return; + } + + + if ( !_cairo_surface_is_xcb(abstract_surface)) { + _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + return; + } + + if (width > XLIB_COORD_MAX || height > XLIB_COORD_MAX || width <= 0 || height <= 0) { + _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_INVALID_SIZE)); + return; + } + + surface = (cairo_xcb_surface_t *) abstract_surface; + + _drawable_changed(surface); + surface->width = width; + surface->height = height; +} + +/** + * cairo_xcb_surface_set_drawable: + * @surface: a #cairo_surface_t for the XCB backend + * @drawable: the new drawable of the surface + * @width: the new width of the surface + * @height: the new height of the surface + * + * Informs cairo of the new drawable and size of the XCB drawable underlying the + * surface. + * + * If cairo_surface_flush() wasn't called, some pending operations + * might be discarded. + * + * Since: 1.12 + **/ +void +cairo_xcb_surface_set_drawable (cairo_surface_t *abstract_surface, + xcb_drawable_t drawable, + int width, + int height) +{ + cairo_xcb_surface_t *surface; + + if (unlikely (abstract_surface->status)) + return; + if (unlikely (abstract_surface->finished)) { + _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return; + } + + + if ( !_cairo_surface_is_xcb(abstract_surface)) { + _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + return; + } + + if (width > XLIB_COORD_MAX || height > XLIB_COORD_MAX || width <= 0 || height <= 0) { + _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_INVALID_SIZE)); + return; + } + + surface = (cairo_xcb_surface_t *) abstract_surface; + + /* XXX: and what about this case? */ + if (surface->owns_pixmap) + return; + + _drawable_changed (surface); + + if (surface->drawable != drawable) { + cairo_status_t status; + status = _cairo_xcb_connection_acquire (surface->connection); + if (unlikely (status)) + return; + + if (surface->picture != XCB_NONE) { + _cairo_xcb_connection_render_free_picture (surface->connection, + surface->picture); + surface->picture = XCB_NONE; + } + + _cairo_xcb_connection_release (surface->connection); + + surface->drawable = drawable; + } + surface->width = width; + surface->height = height; +} diff --git a/local/recipes/libs/cairo/source/src/cairo-xcb.h b/local/recipes/libs/cairo/source/src/cairo-xcb.h new file mode 100644 index 0000000000..e321d8482c --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xcb.h @@ -0,0 +1,116 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +#ifndef CAIRO_XCB_H +#define CAIRO_XCB_H + +#include "cairo.h" + +#if CAIRO_HAS_XCB_SURFACE + +#include +#include + +CAIRO_BEGIN_DECLS + +cairo_public cairo_surface_t * +cairo_xcb_surface_create (xcb_connection_t *connection, + xcb_drawable_t drawable, + xcb_visualtype_t *visual, + int width, + int height); + +cairo_public cairo_surface_t * +cairo_xcb_surface_create_for_bitmap (xcb_connection_t *connection, + xcb_screen_t *screen, + xcb_pixmap_t bitmap, + int width, + int height); + +cairo_public cairo_surface_t * +cairo_xcb_surface_create_with_xrender_format (xcb_connection_t *connection, + xcb_screen_t *screen, + xcb_drawable_t drawable, + xcb_render_pictforminfo_t *format, + int width, + int height); + +cairo_public void +cairo_xcb_surface_set_size (cairo_surface_t *surface, + int width, + int height); + +cairo_public void +cairo_xcb_surface_set_drawable (cairo_surface_t *surface, + xcb_drawable_t drawable, + int width, + int height); + +cairo_public xcb_connection_t * +cairo_xcb_device_get_connection (cairo_device_t *device); + +/* debug interface */ + +cairo_public void +cairo_xcb_device_debug_cap_xshm_version (cairo_device_t *device, + int major_version, + int minor_version); + +cairo_public void +cairo_xcb_device_debug_cap_xrender_version (cairo_device_t *device, + int major_version, + int minor_version); + +/* + * @precision: -1 implies automatically choose based on antialiasing mode, + * any other value overrides and sets the corresponding PolyMode. + */ +cairo_public void +cairo_xcb_device_debug_set_precision (cairo_device_t *device, + int precision); + +cairo_public int +cairo_xcb_device_debug_get_precision (cairo_device_t *device); + +CAIRO_END_DECLS + +#else /* CAIRO_HAS_XCB_SURFACE */ +# error Cairo was not compiled with support for the xcb backend +#endif /* CAIRO_HAS_XCB_SURFACE */ + +#endif /* CAIRO_XCB_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib-core-compositor.c b/local/recipes/libs/cairo/source/src/cairo-xlib-core-compositor.c new file mode 100644 index 0000000000..1392999617 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib-core-compositor.c @@ -0,0 +1,653 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Behdad Esfahbod + * Chris Wilson + * Karl Tomlinson , Mozilla Corporation + */ + +/* The original X drawing API was very restrictive in what it could handle, + * pixel-aligned fill/blits are all that map into Cairo's drawing model. + */ + +#include "cairoint.h" + +#if !CAIRO_HAS_XLIB_XCB_FUNCTIONS + +#include "cairo-xlib-private.h" +#include "cairo-xlib-surface-private.h" + +#include "cairo-boxes-private.h" +#include "cairo-clip-inline.h" +#include "cairo-compositor-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-pattern-private.h" +#include "cairo-region-private.h" +#include "cairo-surface-offset-private.h" + +/* the low-level interface */ + +static cairo_int_status_t +acquire (void *abstract_dst) +{ + cairo_xlib_surface_t *dst = abstract_dst; + return _cairo_xlib_display_acquire (dst->base.device, &dst->display); +} + +static cairo_int_status_t +release (void *abstract_dst) +{ + cairo_xlib_surface_t *dst = abstract_dst; + + cairo_device_release (&dst->display->base); + dst->display = NULL; + + return CAIRO_STATUS_SUCCESS; +} + +struct _fill_box { + Display *dpy; + Drawable drawable; + GC gc; + //cairo_surface_t *dither = NULL; +}; + +static cairo_bool_t fill_box (cairo_box_t *box, void *closure) +{ + struct _fill_box *data = closure; + int x = _cairo_fixed_integer_part (box->p1.x); + int y = _cairo_fixed_integer_part (box->p1.y); + int width = _cairo_fixed_integer_part (box->p2.x - box->p1.x); + int height = _cairo_fixed_integer_part (box->p2.y - box->p1.y); + + XFillRectangle (data->dpy, data->drawable, data->gc, x, y, width, height); + return TRUE; +} + +static void +_characterize_field (uint32_t mask, int *width, int *shift) +{ + *width = _cairo_popcount (mask); + /* The final '& 31' is to force a 0 mask to result in 0 shift. */ + *shift = _cairo_popcount ((mask - 1) & ~mask) & 31; +} + +static uint32_t +color_to_pixel (cairo_xlib_surface_t *dst, + const cairo_color_t *color) +{ + uint32_t rgba = 0; + int width, shift; + + _characterize_field (dst->a_mask, &width, &shift); + rgba |= color->alpha_short >> (16 - width) << shift; + + _characterize_field (dst->r_mask, &width, &shift); + rgba |= color->red_short >> (16 - width) << shift; + + _characterize_field (dst->g_mask, &width, &shift); + rgba |= color->green_short >> (16 - width) << shift; + + _characterize_field (dst->b_mask, &width, &shift); + rgba |= color->blue_short >> (16 - width) << shift; + + return rgba; +} + +static cairo_int_status_t +_fill_box_init (struct _fill_box *fb, + cairo_xlib_surface_t *dst, + const cairo_color_t *color) +{ + cairo_int_status_t status; + + status = _cairo_xlib_surface_get_gc (dst->display, dst, &fb->gc); + if (unlikely (status)) + return status; + + fb->dpy = dst->display->display; + fb->drawable = dst->drawable; + + if (dst->visual && dst->visual->class != TrueColor && 0) { +#if 0 + cairo_solid_pattern_t solid; + cairo_surface_attributes_t attrs; + + _cairo_pattern_init_solid (&solid, color); + status = _cairo_pattern_acquire_surface (&solid.base, &dst->base, + 0, 0, + ARRAY_LENGTH (dither_pattern[0]), + ARRAY_LENGTH (dither_pattern), + CAIRO_PATTERN_ACQUIRE_NONE, + &dither, + &attrs); + if (unlikely (status)) { + _cairo_xlib_surface_put_gc (dst->display, dst, fb.gc); + return status; + } + + XSetTSOrigin (fb->dpy, fb->gc, + - (dst->base.device_transform.x0 + attrs.x_offset), + - (dst->base.device_transform.y0 + attrs.y_offset)); + XSetTile (fb->dpy, fb->gc, ((cairo_xlib_surface_t *) dither)->drawable); +#endif + } else { + XGCValues gcv; + + gcv.foreground = color_to_pixel (dst, color); + gcv.fill_style = FillSolid; + + XChangeGC (fb->dpy, fb->gc, GCFillStyle | GCForeground, &gcv); + } + + return CAIRO_INT_STATUS_SUCCESS; +} + +static void +_fill_box_fini (struct _fill_box *fb, + cairo_xlib_surface_t *dst) +{ + _cairo_xlib_surface_put_gc (dst->display, dst, fb->gc); + //cairo_surface_destroy (fb->dither); +} + +cairo_int_status_t +_cairo_xlib_core_fill_boxes (cairo_xlib_surface_t *dst, + const cairo_color_t *color, + cairo_boxes_t *boxes) +{ + cairo_int_status_t status; + struct _fill_box fb; + + status = _fill_box_init (&fb, dst, color); + if (unlikely (status)) + return status; + + _cairo_boxes_for_each_box (boxes, fill_box, &fb); + + _fill_box_fini (&fb, dst); + return CAIRO_STATUS_SUCCESS; +} + +cairo_int_status_t +_cairo_xlib_core_fill_rectangles (cairo_xlib_surface_t *dst, + const cairo_color_t *color, + int num_rects, + cairo_rectangle_int_t *rects) +{ + cairo_int_status_t status; + struct _fill_box fb; + int i; + + status = _fill_box_init (&fb, dst, color); + if (unlikely (status)) + return status; + + for (i = 0; i < num_rects; i++) + XFillRectangle (fb.dpy, fb.drawable, fb.gc, + rects[i].x, rects[i].y, + rects[i].width, rects[i].height); + + _fill_box_fini (&fb, dst); + return CAIRO_STATUS_SUCCESS; +} + +struct _fallback_box { + cairo_xlib_surface_t *dst; + cairo_format_t format; + const cairo_pattern_t *pattern; +}; + +static cairo_bool_t fallback_box (cairo_box_t *box, void *closure) +{ + struct _fallback_box *data = closure; + int x = _cairo_fixed_integer_part (box->p1.x); + int y = _cairo_fixed_integer_part (box->p1.y); + int width = _cairo_fixed_integer_part (box->p2.x - box->p1.x); + int height = _cairo_fixed_integer_part (box->p2.y - box->p1.y); + cairo_surface_t *image; + cairo_status_t status; + + /* XXX for EXTEND_NONE and if the box is wholly outside we can just fill */ + + image = cairo_surface_create_similar_image (&data->dst->base, data->format, + width, height); + status = _cairo_surface_offset_paint (image, x, y, + CAIRO_OPERATOR_SOURCE, + data->pattern, NULL); + if (status == CAIRO_STATUS_SUCCESS) { + status = _cairo_xlib_surface_draw_image (data->dst, + (cairo_image_surface_t *)image, + 0, 0, + width, height, + x, y); + } + cairo_surface_destroy (image); + + return status == CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +fallback_boxes (cairo_xlib_surface_t *dst, + const cairo_pattern_t *pattern, + cairo_boxes_t *boxes) +{ + struct _fallback_box fb; + + /* XXX create_similar_image using pixman_format? */ + switch (dst->depth) { + case 8: fb.format = CAIRO_FORMAT_A8; break; + case 16: fb.format = CAIRO_FORMAT_RGB16_565; break; + case 24: fb.format = CAIRO_FORMAT_RGB24; break; + case 30: fb.format = CAIRO_FORMAT_RGB30; break; + case 32: fb.format = CAIRO_FORMAT_ARGB32; break; + default: return CAIRO_INT_STATUS_UNSUPPORTED; + } + + fb.dst = dst; + fb.pattern = pattern; + + if (! _cairo_boxes_for_each_box (boxes, fallback_box, &fb)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +render_boxes (cairo_xlib_surface_t *dst, + const cairo_pattern_t *pattern, + cairo_boxes_t *boxes) +{ + if (pattern->filter != CAIRO_FILTER_NEAREST) + return fallback_boxes (dst, pattern, boxes); + + switch (pattern->extend) { + default: + case CAIRO_EXTEND_NONE: + case CAIRO_EXTEND_REFLECT: + case CAIRO_EXTEND_PAD: + return fallback_boxes (dst, pattern, boxes); + + case CAIRO_EXTEND_REPEAT: /* XXX Use tiling */ + return fallback_boxes (dst, pattern, boxes); + } +} + +/* the mid-level: converts boxes into drawing operations */ + +struct _box_data { + Display *dpy; + cairo_xlib_surface_t *dst; + cairo_surface_t *src; + GC gc; + int tx, ty; + int width, height; +}; + +static cairo_bool_t source_contains_box (cairo_box_t *box, void *closure) +{ + struct _box_data *data = closure; + + /* The box is pixel-aligned so the truncation is safe. */ + return + _cairo_fixed_integer_part (box->p1.x) + data->tx >= 0 && + _cairo_fixed_integer_part (box->p1.y) + data->ty >= 0 && + _cairo_fixed_integer_part (box->p2.x) + data->tx <= data->width && + _cairo_fixed_integer_part (box->p2.y) + data->ty <= data->height; +} + +static cairo_bool_t image_upload_box (cairo_box_t *box, void *closure) +{ + const struct _box_data *iub = closure; + int x = _cairo_fixed_integer_part (box->p1.x); + int y = _cairo_fixed_integer_part (box->p1.y); + int width = _cairo_fixed_integer_part (box->p2.x - box->p1.x); + int height = _cairo_fixed_integer_part (box->p2.y - box->p1.y); + + return _cairo_xlib_surface_draw_image (iub->dst, + (cairo_image_surface_t *)iub->src, + x + iub->tx, y + iub->ty, + width, height, + x, y) == CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +surface_matches_image_format (cairo_xlib_surface_t *surface, + cairo_image_surface_t *image) +{ + cairo_format_masks_t format; + + return (_pixman_format_to_masks (image->pixman_format, &format) && + (format.alpha_mask == surface->a_mask || surface->a_mask == 0) && + (format.red_mask == surface->r_mask || surface->r_mask == 0) && + (format.green_mask == surface->g_mask || surface->g_mask == 0) && + (format.blue_mask == surface->b_mask || surface->b_mask == 0)); +} + +static cairo_status_t +upload_image_inplace (cairo_xlib_surface_t *dst, + const cairo_pattern_t *source, + cairo_boxes_t *boxes) +{ + const cairo_surface_pattern_t *pattern; + struct _box_data iub; + cairo_image_surface_t *image; + + if (source->type != CAIRO_PATTERN_TYPE_SURFACE) + return CAIRO_INT_STATUS_UNSUPPORTED; + + pattern = (const cairo_surface_pattern_t *) source; + if (pattern->surface->type != CAIRO_SURFACE_TYPE_IMAGE) + return CAIRO_INT_STATUS_UNSUPPORTED; + + image = (cairo_image_surface_t *) pattern->surface; + if (image->format == CAIRO_FORMAT_INVALID) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (image->depth != dst->depth) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (! surface_matches_image_format (dst, image)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* XXX subsurface */ + + if (! _cairo_matrix_is_integer_translation (&source->matrix, + &iub.tx, &iub.ty)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + iub.dst = dst; + iub.src = &image->base; + iub.width = image->width; + iub.height = image->height; + + /* First check that the data is entirely within the image */ + if (! _cairo_boxes_for_each_box (boxes, source_contains_box, &iub)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (! _cairo_boxes_for_each_box (boxes, image_upload_box, &iub)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t copy_box (cairo_box_t *box, void *closure) +{ + const struct _box_data *cb = closure; + int x = _cairo_fixed_integer_part (box->p1.x); + int y = _cairo_fixed_integer_part (box->p1.y); + int width = _cairo_fixed_integer_part (box->p2.x - box->p1.x); + int height = _cairo_fixed_integer_part (box->p2.y - box->p1.y); + + XCopyArea (cb->dpy, + ((cairo_xlib_surface_t *)cb->src)->drawable, + cb->dst->drawable, + cb->gc, + x + cb->tx, y + cb->ty, + width, height, + x, y); + return TRUE; +} + +static cairo_status_t +copy_boxes (cairo_xlib_surface_t *dst, + const cairo_pattern_t *source, + cairo_boxes_t *boxes) +{ + const cairo_surface_pattern_t *pattern; + struct _box_data cb; + cairo_xlib_surface_t *src; + cairo_status_t status; + + if (source->type != CAIRO_PATTERN_TYPE_SURFACE) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* XXX subsurface */ + + pattern = (const cairo_surface_pattern_t *) source; + if (pattern->surface->backend->type != CAIRO_SURFACE_TYPE_XLIB) + return CAIRO_INT_STATUS_UNSUPPORTED; + + src = (cairo_xlib_surface_t *) pattern->surface; + if (src->depth != dst->depth) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* We can only have a single control for subwindow_mode on the + * GC. If we have a Window destination, we need to set ClipByChildren, + * but if we have a Window source, we need IncludeInferiors. If we have + * both a Window destination and source, we must fallback. There is + * no convenient way to detect if a drawable is a Pixmap or Window, + * therefore we can only rely on those surfaces that we created + * ourselves to be Pixmaps, and treat everything else as a potential + * Window. + */ + if (! src->owns_pixmap && ! dst->owns_pixmap) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (! _cairo_xlib_surface_same_screen (dst, src)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (! _cairo_matrix_is_integer_translation (&source->matrix, + &cb.tx, &cb.ty)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + cb.dpy = dst->display->display; + cb.dst = dst; + cb.src = &src->base; + cb.width = src->width; + cb.height = src->height; + + /* First check that the data is entirely within the image */ + if (! _cairo_boxes_for_each_box (boxes, source_contains_box, &cb)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_xlib_surface_get_gc (dst->display, dst, &cb.gc); + if (unlikely (status)) + return status; + + if (! src->owns_pixmap) { + XGCValues gcv; + + gcv.subwindow_mode = IncludeInferiors; + XChangeGC (dst->display->display, cb.gc, GCSubwindowMode, &gcv); + } + + status = CAIRO_STATUS_SUCCESS; + if (! _cairo_boxes_for_each_box (boxes, copy_box, &cb)) + status = CAIRO_INT_STATUS_UNSUPPORTED; + + if (! src->owns_pixmap) { + XGCValues gcv; + + gcv.subwindow_mode = ClipByChildren; + XChangeGC (dst->display->display, cb.gc, GCSubwindowMode, &gcv); + } + + _cairo_xlib_surface_put_gc (dst->display, dst, cb.gc); + + return status; +} + +static cairo_status_t +draw_boxes (cairo_composite_rectangles_t *extents, + cairo_boxes_t *boxes) +{ + cairo_xlib_surface_t *dst = (cairo_xlib_surface_t *)extents->surface; + cairo_operator_t op = extents->op; + const cairo_pattern_t *src = &extents->source_pattern.base; + cairo_int_status_t status; + + if (boxes->num_boxes == 0 && extents->is_bounded) + return CAIRO_STATUS_SUCCESS; + + if (! boxes->is_pixel_aligned) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (op == CAIRO_OPERATOR_CLEAR) + op = CAIRO_OPERATOR_SOURCE; + + if (op == CAIRO_OPERATOR_OVER && + _cairo_pattern_is_opaque (src, &extents->bounded)) + op = CAIRO_OPERATOR_SOURCE; + + if (dst->base.is_clear && op == CAIRO_OPERATOR_OVER) + op = CAIRO_OPERATOR_SOURCE; + + if (op != CAIRO_OPERATOR_SOURCE) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = acquire (dst); + if (unlikely (status)) + return status; + + if (src->type == CAIRO_PATTERN_TYPE_SOLID) { + status = _cairo_xlib_core_fill_boxes + (dst, &((cairo_solid_pattern_t *) src)->color, boxes); + } else { + status = upload_image_inplace (dst, src, boxes); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) + status = copy_boxes (dst, src, boxes); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) + status = render_boxes (dst, src, boxes); + } + + release (dst); + + return status; +} + +/* high-level compositor interface */ + +static cairo_int_status_t +_cairo_xlib_core_compositor_paint (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents) +{ + cairo_int_status_t status; + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (_cairo_clip_is_region (extents->clip)) { + cairo_boxes_t boxes; + + _cairo_clip_steal_boxes (extents->clip, &boxes); + status = draw_boxes (extents, &boxes); + _cairo_clip_unsteal_boxes (extents->clip, &boxes); + } + + return status; +} + +static cairo_int_status_t +_cairo_xlib_core_compositor_stroke (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_int_status_t status; + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (extents->clip->path == NULL && + _cairo_path_fixed_stroke_is_rectilinear (path)) { + cairo_boxes_t boxes; + + _cairo_boxes_init_with_clip (&boxes, extents->clip); + status = _cairo_path_fixed_stroke_rectilinear_to_boxes (path, + style, + ctm, + antialias, + &boxes); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = draw_boxes (extents, &boxes); + _cairo_boxes_fini (&boxes); + } + + return status; +} + +static cairo_int_status_t +_cairo_xlib_core_compositor_fill (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_int_status_t status; + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (extents->clip->path == NULL && + _cairo_path_fixed_fill_is_rectilinear (path)) { + cairo_boxes_t boxes; + + _cairo_boxes_init_with_clip (&boxes, extents->clip); + status = _cairo_path_fixed_fill_rectilinear_to_boxes (path, + fill_rule, + antialias, + &boxes); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = draw_boxes (extents, &boxes); + _cairo_boxes_fini (&boxes); + } + + return status; +} + +const cairo_compositor_t * +_cairo_xlib_core_compositor_get (void) +{ + static cairo_atomic_once_t once = CAIRO_ATOMIC_ONCE_INIT; + static cairo_compositor_t compositor; + + if (_cairo_atomic_init_once_enter(&once)) { + compositor.delegate = _cairo_xlib_fallback_compositor_get (); + + compositor.paint = _cairo_xlib_core_compositor_paint; + compositor.mask = NULL; + compositor.fill = _cairo_xlib_core_compositor_fill; + compositor.stroke = _cairo_xlib_core_compositor_stroke; + compositor.glyphs = NULL; /* XXX PolyGlyph? */ + + _cairo_atomic_init_once_leave(&once); + } + + return &compositor; +} + +#endif /* !CAIRO_HAS_XLIB_XCB_FUNCTIONS */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib-display.c b/local/recipes/libs/cairo/source/src/cairo-xlib-display.c new file mode 100644 index 0000000000..8b2ffe8e1e --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib-display.c @@ -0,0 +1,667 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2007 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Karl Tomlinson , Mozilla Corporation + */ + +#include "cairoint.h" + +#if !CAIRO_HAS_XLIB_XCB_FUNCTIONS + +#include "cairo-xlib-private.h" +#include "cairo-xlib-xrender-private.h" +#include "cairo-freelist-private.h" +#include "cairo-error-private.h" +#include "cairo-list-inline.h" + +#include /* For XESetCloseDisplay */ + +typedef int (*cairo_xlib_error_func_t) (Display *display, + XErrorEvent *event); + +static cairo_xlib_display_t *_cairo_xlib_display_list; + +static int +_noop_error_handler (Display *display, + XErrorEvent *event) +{ + return False; /* return value is ignored */ +} + +static void +_cairo_xlib_display_finish (void *abstract_display) +{ + cairo_xlib_display_t *display = abstract_display; + Display *dpy = display->display; + + _cairo_xlib_display_fini_shm (display); + + if (! cairo_device_acquire (&display->base)) { + cairo_xlib_error_func_t old_handler; + + /* protect the notifies from triggering XErrors */ + XSync (dpy, False); + old_handler = XSetErrorHandler (_noop_error_handler); + + while (! cairo_list_is_empty (&display->fonts)) { + _cairo_xlib_font_close (cairo_list_first_entry (&display->fonts, + cairo_xlib_font_t, + link)); + } + + while (! cairo_list_is_empty (&display->screens)) { + _cairo_xlib_screen_destroy (display, + cairo_list_first_entry (&display->screens, + cairo_xlib_screen_t, + link)); + } + + XSync (dpy, False); + XSetErrorHandler (old_handler); + + cairo_device_release (&display->base); + } +} + +static void +_cairo_xlib_display_destroy (void *abstract_display) +{ + cairo_xlib_display_t *display = abstract_display; + + free (display); +} + +static int +_cairo_xlib_close_display (Display *dpy, XExtCodes *codes) +{ + cairo_xlib_display_t *display, **prev, *next; + + CAIRO_MUTEX_LOCK (_cairo_xlib_display_mutex); + for (display = _cairo_xlib_display_list; display; display = display->next) + if (display->display == dpy) + break; + CAIRO_MUTEX_UNLOCK (_cairo_xlib_display_mutex); + if (display == NULL) + return 0; + + cairo_device_finish (&display->base); + + /* + * Unhook from the global list + */ + CAIRO_MUTEX_LOCK (_cairo_xlib_display_mutex); + prev = &_cairo_xlib_display_list; + for (display = _cairo_xlib_display_list; display; display = next) { + next = display->next; + if (display->display == dpy) { + *prev = next; + break; + } else + prev = &display->next; + } + CAIRO_MUTEX_UNLOCK (_cairo_xlib_display_mutex); + + display->display = NULL; /* catch any later invalid access */ + cairo_device_destroy (&display->base); + + /* Return value in accordance with requirements of + * XESetCloseDisplay */ + return 0; +} + +static const cairo_device_backend_t _cairo_xlib_device_backend = { + CAIRO_DEVICE_TYPE_XLIB, + + NULL, + NULL, + + NULL, /* flush */ + _cairo_xlib_display_finish, + _cairo_xlib_display_destroy, +}; + +static void _cairo_xlib_display_select_compositor (cairo_xlib_display_t *display) +{ +#if 1 + if (display->render_major > 0 || display->render_minor >= 4) + display->compositor = _cairo_xlib_traps_compositor_get (); + else if (display->render_major > 0 || display->render_minor >= 0) + display->compositor = _cairo_xlib_mask_compositor_get (); + else + display->compositor = _cairo_xlib_core_compositor_get (); +#else + display->compositor = _cairo_xlib_fallback_compositor_get (); +#endif +} + +/** + * _cairo_xlib_device_create: + * @dpy: the display to create the device for + * + * Gets the device belonging to @dpy, or creates it if it doesn't exist yet. + * + * Returns: the device belonging to @dpy + **/ +cairo_device_t * +_cairo_xlib_device_create (Display *dpy) +{ + cairo_xlib_display_t *display; + cairo_xlib_display_t **prev; + cairo_device_t *device; + XExtCodes *codes; + const char *env; + + CAIRO_MUTEX_INITIALIZE (); + + /* There is an apparent deadlock between this mutex and the + * mutex for the display, but it's actually safe. For the + * app to call XCloseDisplay() while any other thread is + * inside this function would be an error in the logic + * app, and the CloseDisplay hook is the only other place we + * acquire this mutex. + */ + CAIRO_MUTEX_LOCK (_cairo_xlib_display_mutex); + + for (prev = &_cairo_xlib_display_list; (display = *prev); prev = &(*prev)->next) + { + if (display->display == dpy) { + /* + * MRU the list + */ + if (prev != &_cairo_xlib_display_list) { + *prev = display->next; + display->next = _cairo_xlib_display_list; + _cairo_xlib_display_list = display; + } + device = cairo_device_reference (&display->base); + goto UNLOCK; + } + } + + display = _cairo_calloc (sizeof (cairo_xlib_display_t)); + if (unlikely (display == NULL)) { + device = _cairo_device_create_in_error (CAIRO_STATUS_NO_MEMORY); + goto UNLOCK; + } + + _cairo_device_init (&display->base, &_cairo_xlib_device_backend); + + display->display = dpy; + cairo_list_init (&display->screens); + cairo_list_init (&display->fonts); + display->closed = FALSE; + + /* Xlib calls out to the extension close_display hooks in LIFO + * order. So we have to ensure that all extensions that we depend + * on in our close_display hook are properly initialized before we + * add our hook. For now, that means Render, so we call into its + * QueryVersion function to ensure it gets initialized. + */ + display->render_major = display->render_minor = -1; + XRenderQueryVersion (dpy, &display->render_major, &display->render_minor); + env = getenv ("CAIRO_DEBUG"); + if (env != NULL && (env = strstr (env, "xrender-version=")) != NULL) { + int max_render_major, max_render_minor; + + env += sizeof ("xrender-version=") - 1; + if (sscanf (env, "%d.%d", &max_render_major, &max_render_minor) != 2) + max_render_major = max_render_minor = -1; + + if (max_render_major < display->render_major || + (max_render_major == display->render_major && + max_render_minor < display->render_minor)) + { + display->render_major = max_render_major; + display->render_minor = max_render_minor; + } + } + + _cairo_xlib_display_select_compositor (display); + + display->white = NULL; + memset (display->alpha, 0, sizeof (display->alpha)); + memset (display->solid, 0, sizeof (display->solid)); + memset (display->solid_cache, 0, sizeof (display->solid_cache)); + memset (display->last_solid_cache, 0, sizeof (display->last_solid_cache)); + + memset (display->cached_xrender_formats, 0, + sizeof (display->cached_xrender_formats)); + + display->force_precision = -1; + + _cairo_xlib_display_init_shm (display); + + /* Prior to Render 0.10, there is no protocol support for gradients and + * we call function stubs instead, which would silently consume the drawing. + */ +#if RENDER_MAJOR == 0 && RENDER_MINOR < 10 + display->buggy_gradients = TRUE; +#else + display->buggy_gradients = FALSE; +#endif + display->buggy_pad_reflect = FALSE; + display->buggy_repeat = FALSE; + + /* This buggy_repeat condition is very complicated because there + * are multiple X server code bases (with multiple versioning + * schemes within a code base), and multiple bugs. + * + * The X servers: + * + * 1. The Vendor=="XFree86" code base with release numbers such + * as 4.7.0 (VendorRelease==40700000). + * + * 2. The Vendor=="X.Org" code base (a descendant of the + * XFree86 code base). It originally had things like + * VendorRelease==60700000 for release 6.7.0 but then changed + * its versioning scheme so that, for example, + * VendorRelease==10400000 for the 1.4.0 X server within the + * X.Org 7.3 release. + * + * The bugs: + * + * 1. The original bug that led to the buggy_repeat + * workaround. This was a bug that Owen Taylor investigated, + * understood well, and characterized against various X + * servers. Confirmed X servers with this bug include: + * + * "XFree86" <= 40500000 + * "X.Org" <= 60802000 (only with old numbering >= 60700000) + * + * 2. A separate bug resulting in a crash of the X server when + * using cairo's extend-reflect test case, (which, surprisingly + * enough was not passing RepeatReflect to the X server, but + * instead using RepeatNormal in a workaround). Nobody to date + * has understood the bug well, but it appears to be gone as of + * the X.Org 1.4.0 server. This bug is coincidentally avoided + * by using the same buggy_repeat workaround. Confirmed X + * servers with this bug include: + * + * "X.org" == 60900000 (old versioning scheme) + * "X.org" < 10400000 (new numbering scheme) + * + * For the old-versioning-scheme X servers we don't know + * exactly when second the bug started, but since bug 1 is + * present through 6.8.2 and bug 2 is present in 6.9.0 it seems + * safest to just blacklist all old-versioning-scheme X servers, + * (just using VendorRelease < 70000000), as buggy_repeat=TRUE. + */ + if (_cairo_xlib_vendor_is_xorg (dpy)) { + if (VendorRelease (dpy) >= 60700000) { + if (VendorRelease (dpy) < 70000000) + display->buggy_repeat = TRUE; + + /* We know that gradients simply do not work in early Xorg servers */ + if (VendorRelease (dpy) < 70200000) + display->buggy_gradients = TRUE; + + /* And the extended repeat modes were not fixed until much later */ + display->buggy_pad_reflect = TRUE; + } else { + if (VendorRelease (dpy) < 10400000) + display->buggy_repeat = TRUE; + + /* Too many bugs in the early drivers */ + if (VendorRelease (dpy) < 10699000) + display->buggy_pad_reflect = TRUE; + } + } else if (strstr (ServerVendor (dpy), "XFree86") != NULL) { + if (VendorRelease (dpy) <= 40500000) + display->buggy_repeat = TRUE; + + display->buggy_gradients = TRUE; + display->buggy_pad_reflect = TRUE; + } + + codes = XAddExtension (dpy); + if (unlikely (codes == NULL)) { + device = _cairo_device_create_in_error (CAIRO_STATUS_NO_MEMORY); + free (display); + goto UNLOCK; + } + + XESetCloseDisplay (dpy, codes->extension, _cairo_xlib_close_display); + cairo_device_reference (&display->base); /* add one for the CloseDisplay */ + + display->next = _cairo_xlib_display_list; + _cairo_xlib_display_list = display; + + device = &display->base; + +UNLOCK: + CAIRO_MUTEX_UNLOCK (_cairo_xlib_display_mutex); + return device; +} + +cairo_status_t +_cairo_xlib_display_acquire (cairo_device_t *device, cairo_xlib_display_t **display) +{ + cairo_status_t status; + + status = cairo_device_acquire (device); + if (status) + return status; + + *display = (cairo_xlib_display_t *) device; + return CAIRO_STATUS_SUCCESS; +} + +XRenderPictFormat * +_cairo_xlib_display_get_xrender_format_for_pixman(cairo_xlib_display_t *display, + pixman_format_code_t format) +{ + Display *dpy = display->display; + XRenderPictFormat tmpl; + int mask; + + /* No equivalent in X11 yet. */ + if (format == PIXMAN_rgba_float || format == PIXMAN_rgb_float) + return NULL; + +#define MASK(x) ((1<<(x))-1) + + tmpl.depth = PIXMAN_FORMAT_DEPTH(format); + mask = PictFormatType | PictFormatDepth; + + switch (PIXMAN_FORMAT_TYPE(format)) { + case PIXMAN_TYPE_ARGB: + tmpl.type = PictTypeDirect; + + tmpl.direct.alphaMask = MASK(PIXMAN_FORMAT_A(format)); + if (PIXMAN_FORMAT_A(format)) + tmpl.direct.alpha = (PIXMAN_FORMAT_R(format) + + PIXMAN_FORMAT_G(format) + + PIXMAN_FORMAT_B(format)); + + tmpl.direct.redMask = MASK(PIXMAN_FORMAT_R(format)); + tmpl.direct.red = (PIXMAN_FORMAT_G(format) + + PIXMAN_FORMAT_B(format)); + + tmpl.direct.greenMask = MASK(PIXMAN_FORMAT_G(format)); + tmpl.direct.green = PIXMAN_FORMAT_B(format); + + tmpl.direct.blueMask = MASK(PIXMAN_FORMAT_B(format)); + tmpl.direct.blue = 0; + + mask |= PictFormatRed | PictFormatRedMask; + mask |= PictFormatGreen | PictFormatGreenMask; + mask |= PictFormatBlue | PictFormatBlueMask; + mask |= PictFormatAlpha | PictFormatAlphaMask; + break; + + case PIXMAN_TYPE_ABGR: + tmpl.type = PictTypeDirect; + + tmpl.direct.alphaMask = MASK(PIXMAN_FORMAT_A(format)); + if (tmpl.direct.alphaMask) + tmpl.direct.alpha = (PIXMAN_FORMAT_B(format) + + PIXMAN_FORMAT_G(format) + + PIXMAN_FORMAT_R(format)); + + tmpl.direct.blueMask = MASK(PIXMAN_FORMAT_B(format)); + tmpl.direct.blue = (PIXMAN_FORMAT_G(format) + + PIXMAN_FORMAT_R(format)); + + tmpl.direct.greenMask = MASK(PIXMAN_FORMAT_G(format)); + tmpl.direct.green = PIXMAN_FORMAT_R(format); + + tmpl.direct.redMask = MASK(PIXMAN_FORMAT_R(format)); + tmpl.direct.red = 0; + + mask |= PictFormatRed | PictFormatRedMask; + mask |= PictFormatGreen | PictFormatGreenMask; + mask |= PictFormatBlue | PictFormatBlueMask; + mask |= PictFormatAlpha | PictFormatAlphaMask; + break; + + case PIXMAN_TYPE_BGRA: + tmpl.type = PictTypeDirect; + + tmpl.direct.blueMask = MASK(PIXMAN_FORMAT_B(format)); + tmpl.direct.blue = (PIXMAN_FORMAT_BPP(format) - PIXMAN_FORMAT_B(format)); + + tmpl.direct.greenMask = MASK(PIXMAN_FORMAT_G(format)); + tmpl.direct.green = (PIXMAN_FORMAT_BPP(format) - PIXMAN_FORMAT_B(format) - + PIXMAN_FORMAT_G(format)); + + tmpl.direct.redMask = MASK(PIXMAN_FORMAT_R(format)); + tmpl.direct.red = (PIXMAN_FORMAT_BPP(format) - PIXMAN_FORMAT_B(format) - + PIXMAN_FORMAT_G(format) - PIXMAN_FORMAT_R(format)); + + tmpl.direct.alphaMask = MASK(PIXMAN_FORMAT_A(format)); + tmpl.direct.alpha = 0; + + mask |= PictFormatRed | PictFormatRedMask; + mask |= PictFormatGreen | PictFormatGreenMask; + mask |= PictFormatBlue | PictFormatBlueMask; + mask |= PictFormatAlpha | PictFormatAlphaMask; + break; + + case PIXMAN_TYPE_A: + tmpl.type = PictTypeDirect; + + tmpl.direct.alpha = 0; + tmpl.direct.alphaMask = MASK(PIXMAN_FORMAT_A(format)); + + mask |= PictFormatAlpha | PictFormatAlphaMask; + break; + + case PIXMAN_TYPE_COLOR: + case PIXMAN_TYPE_GRAY: + /* XXX Find matching visual/colormap */ + tmpl.type = PictTypeIndexed; + //tmpl.colormap = screen->visuals[PIXMAN_FORMAT_VIS(format)].vid; + //mask |= PictFormatColormap; + return NULL; + } +#undef MASK + + /* XXX caching? */ + return XRenderFindFormat(dpy, mask, &tmpl, 0); +} + +XRenderPictFormat * +_cairo_xlib_display_get_xrender_format (cairo_xlib_display_t *display, + cairo_format_t format) +{ + XRenderPictFormat *xrender_format; + + xrender_format = display->cached_xrender_formats[format]; + if (xrender_format == NULL) { + int pict_format = PictStandardNUM; + + switch (format) { + case CAIRO_FORMAT_A1: + pict_format = PictStandardA1; break; + case CAIRO_FORMAT_A8: + pict_format = PictStandardA8; break; + case CAIRO_FORMAT_RGB24: + pict_format = PictStandardRGB24; break; + case CAIRO_FORMAT_RGB16_565: + xrender_format = _cairo_xlib_display_get_xrender_format_for_pixman(display, + PIXMAN_r5g6b5); + break; + case CAIRO_FORMAT_RGB30: + xrender_format = _cairo_xlib_display_get_xrender_format_for_pixman(display, + PIXMAN_x2r10g10b10); + break; + case CAIRO_FORMAT_RGBA128F: + xrender_format = _cairo_xlib_display_get_xrender_format_for_pixman(display, + PIXMAN_rgba_float); + break; + case CAIRO_FORMAT_RGB96F: + xrender_format = _cairo_xlib_display_get_xrender_format_for_pixman(display, + PIXMAN_rgb_float); + break; + case CAIRO_FORMAT_INVALID: + default: + ASSERT_NOT_REACHED; + case CAIRO_FORMAT_ARGB32: + pict_format = PictStandardARGB32; break; + } + if (pict_format != PictStandardNUM) + xrender_format = + XRenderFindStandardFormat (display->display, pict_format); + display->cached_xrender_formats[format] = xrender_format; + } + + return xrender_format; +} + +cairo_xlib_screen_t * +_cairo_xlib_display_get_screen (cairo_xlib_display_t *display, + Screen *screen) +{ + cairo_xlib_screen_t *info; + + cairo_list_foreach_entry (info, cairo_xlib_screen_t, &display->screens, link) { + if (info->screen == screen) { + if (display->screens.next != &info->link) + cairo_list_move (&info->link, &display->screens); + return info; + } + } + + return NULL; +} + +cairo_bool_t +_cairo_xlib_display_has_repeat (cairo_device_t *device) +{ + return ! ((cairo_xlib_display_t *) device)->buggy_repeat; +} + +cairo_bool_t +_cairo_xlib_display_has_reflect (cairo_device_t *device) +{ + return ! ((cairo_xlib_display_t *) device)->buggy_pad_reflect; +} + +cairo_bool_t +_cairo_xlib_display_has_gradients (cairo_device_t *device) +{ + return ! ((cairo_xlib_display_t *) device)->buggy_gradients; +} + +/** + * cairo_xlib_device_debug_cap_xrender_version: + * @device: a #cairo_device_t for the Xlib backend + * @major_version: major version to restrict to + * @minor_version: minor version to restrict to + * + * Restricts all future Xlib surfaces for this devices to the specified version + * of the RENDER extension. This function exists solely for debugging purpose. + * It lets you find out how cairo would behave with an older version of + * the RENDER extension. + * + * Use the special values -1 and -1 for disabling the RENDER extension. + * + * Since: 1.12 + **/ +void +cairo_xlib_device_debug_cap_xrender_version (cairo_device_t *device, + int major_version, + int minor_version) +{ + cairo_xlib_display_t *display = (cairo_xlib_display_t *) device; + + if (device == NULL || device->status) + return; + + if (device->backend->type != CAIRO_DEVICE_TYPE_XLIB) + return; + + if (major_version < display->render_major || + (major_version == display->render_major && + minor_version < display->render_minor)) + { + display->render_major = major_version; + display->render_minor = minor_version; + } + + _cairo_xlib_display_select_compositor (display); +} + +/** + * cairo_xlib_device_debug_set_precision: + * @device: a #cairo_device_t for the Xlib backend + * @precision: the precision to use + * + * Render supports two modes of precision when rendering trapezoids. Set + * the precision to the desired mode. + * + * Since: 1.12 + **/ +void +cairo_xlib_device_debug_set_precision (cairo_device_t *device, + int precision) +{ + if (device == NULL || device->status) + return; + if (device->backend->type != CAIRO_DEVICE_TYPE_XLIB) { + cairo_status_t status; + + status = _cairo_device_set_error (device, CAIRO_STATUS_DEVICE_TYPE_MISMATCH); + (void) status; + return; + } + + ((cairo_xlib_display_t *) device)->force_precision = precision; +} + +/** + * cairo_xlib_device_debug_get_precision: + * @device: a #cairo_device_t for the Xlib backend + * + * Get the Xrender precision mode. + * + * Returns: the render precision mode + * + * Since: 1.12 + **/ +int +cairo_xlib_device_debug_get_precision (cairo_device_t *device) +{ + if (device == NULL || device->status) + return -1; + if (device->backend->type != CAIRO_DEVICE_TYPE_XLIB) { + cairo_status_t status; + + status = _cairo_device_set_error (device, CAIRO_STATUS_DEVICE_TYPE_MISMATCH); + (void) status; + return -1; + } + + return ((cairo_xlib_display_t *) device)->force_precision; +} + +#endif /* !CAIRO_HAS_XLIB_XCB_FUNCTIONS */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib-fallback-compositor.c b/local/recipes/libs/cairo/source/src/cairo-xlib-fallback-compositor.c new file mode 100644 index 0000000000..ed2845db57 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib-fallback-compositor.c @@ -0,0 +1,248 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Behdad Esfahbod + * Chris Wilson + * Karl Tomlinson , Mozilla Corporation + */ + +#include "cairoint.h" + +#if !CAIRO_HAS_XLIB_XCB_FUNCTIONS + +#include "cairo-xlib-private.h" + +#include "cairo-compositor-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-surface-offset-private.h" + +static const cairo_compositor_t * +_get_compositor (cairo_surface_t *surface) +{ + return ((cairo_image_surface_t *)surface)->compositor; +} + +static cairo_bool_t +unclipped (cairo_xlib_surface_t *xlib, cairo_clip_t *clip) +{ + cairo_rectangle_int_t r; + + r.x = r.y = 0; + r.width = xlib->width; + r.height = xlib->height; + return _cairo_clip_contains_rectangle (clip, &r); +} + +static cairo_int_status_t +_cairo_xlib_shm_compositor_paint (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents) +{ + cairo_xlib_surface_t *xlib = (cairo_xlib_surface_t *)extents->surface; + cairo_int_status_t status; + cairo_surface_t *shm; + cairo_bool_t overwrite; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + overwrite = + extents->op <= CAIRO_OPERATOR_SOURCE && unclipped (xlib, extents->clip); + + shm = _cairo_xlib_surface_get_shm (xlib, overwrite); + if (shm == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_compositor_paint (_get_compositor (shm), shm, + extents->op, + &extents->source_pattern.base, + extents->clip); + if (unlikely (status)) + return status; + + xlib->base.is_clear = + extents->op == CAIRO_OPERATOR_CLEAR && unclipped (xlib, extents->clip); + xlib->base.serial++; + xlib->fallback++; + return CAIRO_INT_STATUS_NOTHING_TO_DO; +} + +static cairo_int_status_t +_cairo_xlib_shm_compositor_mask (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents) +{ + cairo_xlib_surface_t *xlib = (cairo_xlib_surface_t *)extents->surface; + cairo_int_status_t status; + cairo_surface_t *shm; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + shm = _cairo_xlib_surface_get_shm (xlib, FALSE); + if (shm == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_compositor_mask (_get_compositor (shm), shm, + extents->op, + &extents->source_pattern.base, + &extents->mask_pattern.base, + extents->clip); + if (unlikely (status)) + return status; + + xlib->base.is_clear = FALSE; + xlib->base.serial++; + xlib->fallback++; + return CAIRO_INT_STATUS_NOTHING_TO_DO; +} + +static cairo_int_status_t +_cairo_xlib_shm_compositor_stroke (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_xlib_surface_t *xlib = (cairo_xlib_surface_t *)extents->surface; + cairo_int_status_t status; + cairo_surface_t *shm; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + shm = _cairo_xlib_surface_get_shm (xlib, FALSE); + if (shm == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_compositor_stroke (_get_compositor (shm), shm, + extents->op, + &extents->source_pattern.base, + path, style, + ctm, ctm_inverse, + tolerance, + antialias, + extents->clip); + if (unlikely (status)) + return status; + + xlib->base.is_clear = FALSE; + xlib->base.serial++; + xlib->fallback++; + return CAIRO_INT_STATUS_NOTHING_TO_DO; +} + +static cairo_int_status_t +_cairo_xlib_shm_compositor_fill (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_xlib_surface_t *xlib = (cairo_xlib_surface_t *)extents->surface; + cairo_int_status_t status; + cairo_surface_t *shm; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + shm = _cairo_xlib_surface_get_shm (xlib, FALSE); + if (shm == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_compositor_fill (_get_compositor (shm), shm, + extents->op, + &extents->source_pattern.base, + path, + fill_rule, tolerance, antialias, + extents->clip); + if (unlikely (status)) + return status; + + xlib->base.is_clear = FALSE; + xlib->base.serial++; + xlib->fallback++; + return CAIRO_INT_STATUS_NOTHING_TO_DO; +} + +static cairo_int_status_t +_cairo_xlib_shm_compositor_glyphs (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_bool_t overlap) +{ + cairo_xlib_surface_t *xlib = (cairo_xlib_surface_t *)extents->surface; + cairo_int_status_t status; + cairo_surface_t *shm; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + shm = _cairo_xlib_surface_get_shm (xlib, FALSE); + if (shm == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_compositor_glyphs (_get_compositor (shm), shm, + extents->op, + &extents->source_pattern.base, + glyphs, num_glyphs, scaled_font, + extents->clip); + if (unlikely (status)) + return status; + + xlib->base.is_clear = FALSE; + xlib->base.serial++; + xlib->fallback++; + return CAIRO_INT_STATUS_NOTHING_TO_DO; +} + +static const cairo_compositor_t _cairo_xlib_shm_compositor = { + &_cairo_fallback_compositor, + + _cairo_xlib_shm_compositor_paint, + _cairo_xlib_shm_compositor_mask, + _cairo_xlib_shm_compositor_stroke, + _cairo_xlib_shm_compositor_fill, + _cairo_xlib_shm_compositor_glyphs, +}; + +const cairo_compositor_t * +_cairo_xlib_fallback_compositor_get (void) +{ + return &_cairo_xlib_shm_compositor; +} + +#endif /* !CAIRO_HAS_XLIB_XCB_FUNCTIONS */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib-private.h b/local/recipes/libs/cairo/source/src/cairo-xlib-private.h new file mode 100644 index 0000000000..e8900030b1 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib-private.h @@ -0,0 +1,472 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributors(s): + * Chris Wilson + * Karl Tomlinson , Mozilla Corporation + */ + +#ifndef CAIRO_XLIB_PRIVATE_H +#define CAIRO_XLIB_PRIVATE_H + +#include "cairo-xlib-xrender-private.h" +#include "cairo-xlib.h" + +#include "cairo-compiler-private.h" +#include "cairo-device-private.h" +#include "cairo-freelist-type-private.h" +#include "cairo-list-private.h" +#include "cairo-reference-count-private.h" +#include "cairo-types-private.h" +#include "cairo-scaled-font-private.h" +#include "cairo-surface-private.h" + +#include +#include + +typedef struct _cairo_xlib_display cairo_xlib_display_t; +typedef struct _cairo_xlib_shm_display cairo_xlib_shm_display_t; +typedef struct _cairo_xlib_screen cairo_xlib_screen_t; +typedef struct _cairo_xlib_source cairo_xlib_source_t; +typedef struct _cairo_xlib_proxy cairo_xlib_proxy_t; +typedef struct _cairo_xlib_surface cairo_xlib_surface_t; + +/* size of color cube */ +#define CUBE_SIZE 6 +/* size of gray ramp */ +#define RAMP_SIZE 16 +/* maximum number of cached GC's */ +#define GC_CACHE_SIZE 4 +/* maximum width/height of an X11 drawable */ +#define XLIB_COORD_MAX 32767 + +struct _cairo_xlib_display { + cairo_device_t base; + + cairo_xlib_display_t *next; + + Display *display; + cairo_list_t screens; + cairo_list_t fonts; + + cairo_xlib_shm_display_t *shm; + + const cairo_compositor_t *compositor; + + int render_major; + int render_minor; + XRenderPictFormat *cached_xrender_formats[CAIRO_FORMAT_RGBA128F + 1]; + + int force_precision; + + cairo_surface_t *white; + cairo_surface_t *alpha[256]; + cairo_surface_t *solid[32]; + uint32_t solid_cache[32]; /* low 16 are opaque, high 16 transparent */ + struct { + uint32_t color; + int index; + } last_solid_cache[2]; + + /* TRUE if the server has a bug with repeating pictures + * + * https://bugs.freedesktop.org/show_bug.cgi?id=3566 + * + * We can't test for this because it depends on whether the + * picture is in video memory or not. + * + * We also use this variable as a guard against a second + * independent bug with transformed repeating pictures: + * + * https://lists.freedesktop.org/archives/cairo/2004-September/001839.html + * + * Both are fixed in xorg >= 6.9 and hopefully in > 6.8.2, so + * we can reuse the test for now. + */ + unsigned int buggy_gradients : 1; + unsigned int buggy_pad_reflect : 1; + unsigned int buggy_repeat : 1; + unsigned int closed :1; +}; + +typedef struct _cairo_xlib_visual_info { + cairo_list_t link; + VisualID visualid; + struct { uint8_t a, r, g, b; } colors[256]; + uint8_t cube_to_pseudocolor[CUBE_SIZE][CUBE_SIZE][CUBE_SIZE]; + uint8_t field8_to_cube[256]; + int8_t dither8_to_cube[256]; + uint8_t gray8_to_pseudocolor[256]; +} cairo_xlib_visual_info_t; + +struct _cairo_xlib_screen { + cairo_list_t link; + + cairo_device_t *device; + Screen *screen; + + cairo_list_t surfaces; + + cairo_bool_t has_font_options; + cairo_font_options_t font_options; + + GC gc[GC_CACHE_SIZE]; + uint8_t gc_depths[GC_CACHE_SIZE]; + + cairo_list_t visuals; +}; + +enum { + GLYPHSET_INDEX_ARGB32, + GLYPHSET_INDEX_A8, + GLYPHSET_INDEX_A1, + NUM_GLYPHSETS +}; + +typedef struct _cairo_xlib_font_glyphset { + GlyphSet glyphset; + cairo_format_t format; + XRenderPictFormat *xrender_format; + struct _cairo_xlib_font_glyphset_free_glyphs { + int count; + unsigned long indices[128]; + } to_free; +} cairo_xlib_font_glyphset_t; + +typedef struct _cairo_xlib_font { + cairo_scaled_font_private_t base; + cairo_scaled_font_t *font; + cairo_device_t *device; + cairo_list_t link; + cairo_xlib_font_glyphset_t glyphset[NUM_GLYPHSETS]; +} cairo_xlib_font_t; + +struct _cairo_xlib_surface { + cairo_surface_t base; + + Picture picture; + Drawable drawable; + + const cairo_compositor_t *compositor; + cairo_surface_t *shm; + int fallback; + + cairo_xlib_display_t *display; + cairo_xlib_screen_t *screen; + cairo_list_t link; + + Display *dpy; /* only valid between acquire/release */ + cairo_bool_t owns_pixmap; + Visual *visual; + + int use_pixmap; + + int width; + int height; + int depth; + + int precision; + XRenderPictFormat *xrender_format; + /* XXX pixman_format instead of masks? */ + uint32_t a_mask; + uint32_t r_mask; + uint32_t g_mask; + uint32_t b_mask; + + struct _cairo_xlib_source { + cairo_surface_t base; + + Picture picture; + Pixmap pixmap; + Display *dpy; + + unsigned int filter:3; + unsigned int extend:3; + unsigned int has_matrix:1; + unsigned int has_component_alpha:1; + } embedded_source; +}; + +struct _cairo_xlib_proxy { + struct _cairo_xlib_source source; + cairo_surface_t *owner; +}; + +inline static cairo_bool_t +_cairo_xlib_vendor_is_xorg (Display *dpy) +{ + const char *const vendor = ServerVendor (dpy); + return strstr (vendor, "X.Org") || strstr (vendor, "Xorg"); +} + +cairo_private cairo_status_t +_cairo_xlib_surface_get_gc (cairo_xlib_display_t *display, + cairo_xlib_surface_t *surface, + GC *gc); + +cairo_private cairo_device_t * +_cairo_xlib_device_create (Display *display); + +cairo_private void +_cairo_xlib_display_init_shm (cairo_xlib_display_t *display); + +cairo_private void +_cairo_xlib_display_fini_shm (cairo_xlib_display_t *display); + +cairo_private cairo_xlib_screen_t * +_cairo_xlib_display_get_screen (cairo_xlib_display_t *display, + Screen *screen); + +cairo_private cairo_status_t +_cairo_xlib_display_acquire (cairo_device_t *device, + cairo_xlib_display_t **display); + +cairo_private cairo_bool_t +_cairo_xlib_display_has_repeat (cairo_device_t *device); + +cairo_private cairo_bool_t +_cairo_xlib_display_has_reflect (cairo_device_t *device); + +cairo_private cairo_bool_t +_cairo_xlib_display_has_gradients (cairo_device_t *device); + +cairo_private void +_cairo_xlib_display_set_precision(cairo_device_t *device, + int precision); + +cairo_private XRenderPictFormat * +_cairo_xlib_display_get_xrender_format (cairo_xlib_display_t *display, + cairo_format_t format); + +cairo_private XRenderPictFormat * +_cairo_xlib_display_get_xrender_format_for_pixman (cairo_xlib_display_t *display, + pixman_format_code_t format); + +cairo_private cairo_status_t +_cairo_xlib_screen_get (Display *dpy, + Screen *screen, + cairo_xlib_screen_t **out); + +cairo_private void +_cairo_xlib_screen_destroy (cairo_xlib_display_t *display, + cairo_xlib_screen_t *info); + +cairo_private GC +_cairo_xlib_screen_get_gc (cairo_xlib_display_t *display, + cairo_xlib_screen_t *info, + int depth, + Drawable drawable); +cairo_private void +_cairo_xlib_screen_put_gc (cairo_xlib_display_t *display, + cairo_xlib_screen_t *info, + int depth, + GC gc); + +cairo_private cairo_font_options_t * +_cairo_xlib_screen_get_font_options (cairo_xlib_screen_t *info); + +cairo_private cairo_status_t +_cairo_xlib_screen_get_visual_info (cairo_xlib_display_t *display, + cairo_xlib_screen_t *info, + Visual *visual, + cairo_xlib_visual_info_t **out); + +cairo_private cairo_status_t +_cairo_xlib_visual_info_create (Display *dpy, + int screen, + VisualID visualid, + cairo_xlib_visual_info_t **out); + +cairo_private void +_cairo_xlib_visual_info_destroy (cairo_xlib_visual_info_t *info); + +cairo_private const cairo_compositor_t * +_cairo_xlib_core_compositor_get (void); + +cairo_private const cairo_compositor_t * +_cairo_xlib_fallback_compositor_get (void); + +cairo_private const cairo_compositor_t * +_cairo_xlib_mask_compositor_get (void); + +cairo_private const cairo_compositor_t * +_cairo_xlib_traps_compositor_get (void); + +cairo_private void +_cairo_xlib_surface_ensure_picture (cairo_xlib_surface_t *surface); + +cairo_private void +_cairo_xlib_surface_set_precision (cairo_xlib_surface_t *surface, + cairo_antialias_t antialias); + +cairo_private cairo_int_status_t +_cairo_xlib_surface_set_attributes (cairo_xlib_display_t *display, + cairo_xlib_surface_t *surface, + cairo_surface_attributes_t *attributes, + double xc, + double yc); + +cairo_private cairo_status_t +_cairo_xlib_surface_draw_image (cairo_xlib_surface_t *surface, + cairo_image_surface_t *image, + int src_x, + int src_y, + int width, + int height, + int dst_x, + int dst_y); + +cairo_private cairo_surface_t * +_cairo_xlib_source_create_for_pattern (cairo_surface_t *dst, + const cairo_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *src_x, int *src_y); + +cairo_private void +_cairo_xlib_font_close (cairo_xlib_font_t *font); + +#define CAIRO_RENDER_AT_LEAST(surface, major, minor) \ + (((surface)->render_major > major) || \ + (((surface)->render_major == major) && ((surface)->render_minor >= minor))) + +#define CAIRO_RENDER_HAS_CREATE_PICTURE(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 0) +#define CAIRO_RENDER_HAS_COMPOSITE(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 0) +#define CAIRO_RENDER_HAS_COMPOSITE_TEXT(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 0) + +#define CAIRO_RENDER_HAS_FILL_RECTANGLES(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 1) + +#define CAIRO_RENDER_HAS_DISJOINT(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 2) +#define CAIRO_RENDER_HAS_CONJOINT(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 2) + +#define CAIRO_RENDER_HAS_TRAPEZOIDS(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 4) +#define CAIRO_RENDER_HAS_TRIANGLES(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 4) +#define CAIRO_RENDER_HAS_TRISTRIP(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 4) +#define CAIRO_RENDER_HAS_TRIFAN(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 4) + +#define CAIRO_RENDER_HAS_PICTURE_TRANSFORM(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 6) +#define CAIRO_RENDER_HAS_FILTERS(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 6) +#define CAIRO_RENDER_HAS_FILTER_GOOD(surface) FALSE +#define CAIRO_RENDER_HAS_FILTER_BEST(surface) FALSE + +#define CAIRO_RENDER_HAS_EXTENDED_REPEAT(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 10) +#define CAIRO_RENDER_HAS_GRADIENTS(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 10) + +#define CAIRO_RENDER_HAS_PDF_OPERATORS(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 11) + +#define CAIRO_RENDER_SUPPORTS_OPERATOR(surface, op) \ + ((op) <= CAIRO_OPERATOR_SATURATE || \ + (CAIRO_RENDER_HAS_PDF_OPERATORS(surface) && \ + (op) <= CAIRO_OPERATOR_HSL_LUMINOSITY)) + +/* + * Return whether two xlib surfaces share the same + * screen. Both core and Render drawing require this + * when using multiple drawables in an operation. + */ +static inline cairo_bool_t +_cairo_xlib_surface_same_screen (cairo_xlib_surface_t *dst, + cairo_xlib_surface_t *src) +{ + return dst->screen == src->screen; +} + +cairo_private cairo_int_status_t +_cairo_xlib_core_fill_boxes (cairo_xlib_surface_t *dst, + const cairo_color_t *color, + cairo_boxes_t *boxes); + +cairo_private cairo_int_status_t +_cairo_xlib_core_fill_rectangles (cairo_xlib_surface_t *dst, + const cairo_color_t *color, + int num_rects, + cairo_rectangle_int_t *rects); + +static inline void +_cairo_xlib_surface_put_gc (cairo_xlib_display_t *display, + cairo_xlib_surface_t *surface, + GC gc) +{ + _cairo_xlib_screen_put_gc (display, + surface->screen, + surface->depth, + gc); +} + +cairo_private cairo_surface_t * +_cairo_xlib_surface_create_similar_shm (void *surface, + cairo_format_t format, + int width, int height); + +cairo_private cairo_surface_t * +_cairo_xlib_surface_get_shm (cairo_xlib_surface_t *surface, + cairo_bool_t overwrite); + +cairo_private cairo_int_status_t +_cairo_xlib_surface_put_shm (cairo_xlib_surface_t *surface); + +cairo_private cairo_surface_t * +_cairo_xlib_surface_create_shm (cairo_xlib_surface_t *other, + pixman_format_code_t format, + int width, int height); + +cairo_private cairo_surface_t * +_cairo_xlib_surface_create_shm__image (cairo_xlib_surface_t *surface, + pixman_format_code_t format, + int width, int height); + +cairo_private void +_cairo_xlib_shm_surface_get_ximage (cairo_surface_t *surface, + XImage *ximage); + +cairo_private void * +_cairo_xlib_shm_surface_get_obdata (cairo_surface_t *surface); + +cairo_private void +_cairo_xlib_shm_surface_mark_active (cairo_surface_t *shm); + +cairo_private cairo_bool_t +_cairo_xlib_shm_surface_is_active (cairo_surface_t *surface); + +cairo_private cairo_bool_t +_cairo_xlib_shm_surface_is_idle (cairo_surface_t *surface); + +cairo_private Pixmap +_cairo_xlib_shm_surface_get_pixmap (cairo_surface_t *surface); + +cairo_private XRenderPictFormat * +_cairo_xlib_shm_surface_get_xrender_format (cairo_surface_t *surface); + +cairo_private pixman_format_code_t +_pixman_format_for_xlib_surface (cairo_xlib_surface_t *surface); + +#endif /* CAIRO_XLIB_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib-render-compositor.c b/local/recipes/libs/cairo/source/src/cairo-xlib-render-compositor.c new file mode 100644 index 0000000000..a870c00e1d --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib-render-compositor.c @@ -0,0 +1,2024 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Behdad Esfahbod + * Chris Wilson + * Karl Tomlinson , Mozilla Corporation + */ + +#include "cairoint.h" + +#if !CAIRO_HAS_XLIB_XCB_FUNCTIONS + +#include "cairo-xlib-private.h" + +#include "cairo-compositor-private.h" +#include "cairo-damage-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-list-inline.h" +#include "cairo-pattern-private.h" +#include "cairo-pixman-private.h" +#include "cairo-traps-private.h" +#include "cairo-tristrip-private.h" + +static cairo_int_status_t +check_composite (const cairo_composite_rectangles_t *extents) +{ + cairo_xlib_display_t *display = ((cairo_xlib_surface_t *)extents->surface)->display; + + if (! CAIRO_RENDER_SUPPORTS_OPERATOR (display, extents->op)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +acquire (void *abstract_dst) +{ + cairo_xlib_surface_t *dst = abstract_dst; + cairo_int_status_t status; + + status = _cairo_xlib_display_acquire (dst->base.device, &dst->display); + if (unlikely (status)) + return status; + + dst->dpy = dst->display->display; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +release (void *abstract_dst) +{ + cairo_xlib_surface_t *dst = abstract_dst; + + cairo_device_release (&dst->display->base); + dst->dpy = NULL; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +set_clip_region (void *_surface, + cairo_region_t *region) +{ + cairo_xlib_surface_t *surface = _surface; + + _cairo_xlib_surface_ensure_picture (surface); + + if (region != NULL) { + XRectangle stack_rects[CAIRO_STACK_ARRAY_LENGTH (XRectangle)]; + XRectangle *rects = stack_rects; + int n_rects, i; + + n_rects = cairo_region_num_rectangles (region); + if (n_rects > ARRAY_LENGTH (stack_rects)) { + rects = _cairo_malloc_ab (n_rects, sizeof (XRectangle)); + if (unlikely (rects == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + for (i = 0; i < n_rects; i++) { + cairo_rectangle_int_t rect; + + cairo_region_get_rectangle (region, i, &rect); + + rects[i].x = rect.x; + rects[i].y = rect.y; + rects[i].width = rect.width; + rects[i].height = rect.height; + } + XRenderSetPictureClipRectangles (surface->dpy, + surface->picture, + 0, 0, + rects, n_rects); + if (rects != stack_rects) + free (rects); + } else { + XRenderPictureAttributes pa; + pa.clip_mask = None; + XRenderChangePicture (surface->dpy, + surface->picture, + CPClipMask, &pa); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +copy_image_boxes (void *_dst, + cairo_image_surface_t *image, + cairo_boxes_t *boxes, + int dx, int dy) +{ + cairo_xlib_surface_t *dst = _dst; + struct _cairo_boxes_chunk *chunk; + cairo_int_status_t status; + Pixmap src; + GC gc; + int i, j; + + assert (image->depth == dst->depth); + + status = acquire (dst); + if (unlikely (status)) + return status; + + status = _cairo_xlib_surface_get_gc (dst->display, dst, &gc); + if (unlikely (status)) { + release (dst); + return status; + } + + src = _cairo_xlib_shm_surface_get_pixmap (&image->base); + if (boxes->num_boxes == 1) { + int x1 = _cairo_fixed_integer_part (boxes->chunks.base[0].p1.x); + int y1 = _cairo_fixed_integer_part (boxes->chunks.base[0].p1.y); + int x2 = _cairo_fixed_integer_part (boxes->chunks.base[0].p2.x); + int y2 = _cairo_fixed_integer_part (boxes->chunks.base[0].p2.y); + + _cairo_xlib_shm_surface_mark_active (&image->base); + XCopyArea (dst->dpy, src, dst->drawable, gc, + x1 + dx, y1 + dy, + x2 - x1, y2 - y1, + x1, y1); + } else { + XRectangle stack_rects[CAIRO_STACK_ARRAY_LENGTH (XRectangle)]; + XRectangle *rects = stack_rects; + + if (boxes->num_boxes > ARRAY_LENGTH (stack_rects)) { + rects = _cairo_malloc_ab (boxes->num_boxes, sizeof (XRectangle)); + if (unlikely (rects == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + j = 0; + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + int x1 = _cairo_fixed_integer_part (chunk->base[i].p1.x); + int y1 = _cairo_fixed_integer_part (chunk->base[i].p1.y); + int x2 = _cairo_fixed_integer_part (chunk->base[i].p2.x); + int y2 = _cairo_fixed_integer_part (chunk->base[i].p2.y); + + if (x2 > x1 && y2 > y1) { + rects[j].x = x1; + rects[j].y = y1; + rects[j].width = x2 - x1; + rects[j].height = y2 - y1; + j++; + } + } + } + + XSetClipRectangles (dst->dpy, gc, 0, 0, rects, j, Unsorted); + _cairo_xlib_shm_surface_mark_active (&image->base); + XCopyArea (dst->dpy, src, dst->drawable, gc, + 0, 0, image->width, image->height, -dx, -dy); + XSetClipMask (dst->dpy, gc, None); + + if (rects != stack_rects) + free (rects); + } + + _cairo_xlib_surface_put_gc (dst->display, dst, gc); + release (dst); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +boxes_cover_surface (cairo_boxes_t *boxes, + cairo_xlib_surface_t *surface) +{ + cairo_box_t *b; + + if (boxes->num_boxes != 1) + return FALSE; + + b = &boxes->chunks.base[0]; + + if (_cairo_fixed_integer_part (b->p1.x) > 0 || + _cairo_fixed_integer_part (b->p1.y) > 0) + return FALSE; + + if (_cairo_fixed_integer_part (b->p2.x) < surface->width || + _cairo_fixed_integer_part (b->p2.y) < surface->height) + return FALSE; + + return TRUE; +} + +static cairo_int_status_t +draw_image_boxes (void *_dst, + cairo_image_surface_t *image, + cairo_boxes_t *boxes, + int dx, int dy) +{ + cairo_xlib_surface_t *dst = _dst; + struct _cairo_boxes_chunk *chunk; + cairo_image_surface_t *shm = NULL; + cairo_int_status_t status; + int i; + + if (image->base.device == dst->base.device) { + if (image->depth != dst->depth) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (_cairo_xlib_shm_surface_get_pixmap (&image->base)) + return copy_image_boxes (dst, image, boxes, dx, dy); + + goto draw_image_boxes; + } + + if (boxes_cover_surface (boxes, dst)) + shm = (cairo_image_surface_t *) _cairo_xlib_surface_get_shm (dst, TRUE); + if (shm) { + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + cairo_box_t *b = &chunk->base[i]; + cairo_rectangle_int_t r; + + r.x = _cairo_fixed_integer_part (b->p1.x); + r.y = _cairo_fixed_integer_part (b->p1.y); + r.width = _cairo_fixed_integer_part (b->p2.x) - r.x; + r.height = _cairo_fixed_integer_part (b->p2.y) - r.y; + + if (shm->pixman_format != image->pixman_format || + ! pixman_blt ((uint32_t *)image->data, (uint32_t *)shm->data, + image->stride / sizeof (uint32_t), + shm->stride / sizeof (uint32_t), + PIXMAN_FORMAT_BPP (image->pixman_format), + PIXMAN_FORMAT_BPP (shm->pixman_format), + r.x + dx, r.y + dy, + r.x, r.y, + r.width, r.height)) + { + pixman_image_composite32 (PIXMAN_OP_SRC, + image->pixman_image, NULL, shm->pixman_image, + r.x + dx, r.y + dy, + 0, 0, + r.x, r.y, + r.width, r.height); + } + + shm->base.damage = + _cairo_damage_add_rectangle (shm->base.damage, &r); + } + } + dst->base.is_clear = FALSE; + dst->fallback++; + dst->base.serial++; + return CAIRO_INT_STATUS_NOTHING_TO_DO; + } + + if (image->depth == dst->depth && + ((cairo_xlib_display_t *)dst->display)->shm) { + cairo_box_t extents; + cairo_rectangle_int_t r; + + _cairo_boxes_extents (boxes, &extents); + _cairo_box_round_to_rectangle (&extents, &r); + + shm = (cairo_image_surface_t *) + _cairo_xlib_surface_create_shm (dst, image->pixman_format, + r.width, r.height); + if (shm) { + int tx = -r.x, ty = -r.y; + + assert (shm->pixman_format == image->pixman_format); + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + cairo_box_t *b = &chunk->base[i]; + + r.x = _cairo_fixed_integer_part (b->p1.x); + r.y = _cairo_fixed_integer_part (b->p1.y); + r.width = _cairo_fixed_integer_part (b->p2.x) - r.x; + r.height = _cairo_fixed_integer_part (b->p2.y) - r.y; + + if (! pixman_blt ((uint32_t *)image->data, (uint32_t *)shm->data, + image->stride / sizeof (uint32_t), + shm->stride / sizeof (uint32_t), + PIXMAN_FORMAT_BPP (image->pixman_format), + PIXMAN_FORMAT_BPP (shm->pixman_format), + r.x + dx, r.y + dy, + r.x + tx, r.y + ty, + r.width, r.height)) + { + pixman_image_composite32 (PIXMAN_OP_SRC, + image->pixman_image, NULL, shm->pixman_image, + r.x + dx, r.y + dy, + 0, 0, + r.x + tx, r.y + ty, + r.width, r.height); + } + } + } + + dx = tx; + dy = ty; + image = shm; + + if (_cairo_xlib_shm_surface_get_pixmap (&image->base)) { + status = copy_image_boxes (dst, image, boxes, dx, dy); + if (status != CAIRO_INT_STATUS_UNSUPPORTED) + goto out; + } + } + } + +draw_image_boxes: + status = CAIRO_STATUS_SUCCESS; + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + cairo_box_t *b = &chunk->base[i]; + int x1 = _cairo_fixed_integer_part (b->p1.x); + int y1 = _cairo_fixed_integer_part (b->p1.y); + int x2 = _cairo_fixed_integer_part (b->p2.x); + int y2 = _cairo_fixed_integer_part (b->p2.y); + if (_cairo_xlib_surface_draw_image (dst, image, + x1 + dx, y1 + dy, + x2 - x1, y2 - y1, + x1, y1)) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto out; + } + } + } + +out: + cairo_surface_destroy (&shm->base); + return status; +} + +static cairo_int_status_t +copy_boxes (void *_dst, + cairo_surface_t *_src, + cairo_boxes_t *boxes, + const cairo_rectangle_int_t *extents, + int dx, int dy) +{ + cairo_xlib_surface_t *dst = _dst; + cairo_xlib_surface_t *src = (cairo_xlib_surface_t *)_src; + struct _cairo_boxes_chunk *chunk; + cairo_int_status_t status; + GC gc; + Drawable d; + int i, j; + + if (! _cairo_xlib_surface_same_screen (dst, src)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (dst->depth != src->depth) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = acquire (dst); + if (unlikely (status)) + return status; + + status = _cairo_xlib_surface_get_gc (dst->display, dst, &gc); + if (unlikely (status)) { + release (dst); + return status; + } + + if (src->fallback && src->shm->damage->dirty) { + assert (src != dst); + d = _cairo_xlib_shm_surface_get_pixmap (src->shm); + assert (d != 0); + } else { + if (! src->owns_pixmap) { + XGCValues gcv; + + gcv.subwindow_mode = IncludeInferiors; + XChangeGC (dst->display->display, gc, GCSubwindowMode, &gcv); + } + d = src->drawable; + } + + if (boxes->num_boxes == 1) { + int x1 = _cairo_fixed_integer_part (boxes->chunks.base[0].p1.x); + int y1 = _cairo_fixed_integer_part (boxes->chunks.base[0].p1.y); + int x2 = _cairo_fixed_integer_part (boxes->chunks.base[0].p2.x); + int y2 = _cairo_fixed_integer_part (boxes->chunks.base[0].p2.y); + + XCopyArea (dst->dpy, d, dst->drawable, gc, + x1 + dx, y1 + dy, + x2 - x1, y2 - y1, + x1, y1); + } else { + /* We can only have a single control for subwindow_mode on the + * GC. If we have a Window destination, we need to set ClipByChildren, + * but if we have a Window source, we need IncludeInferiors. If we have + * both a Window destination and source, we must fallback. There is + * no convenient way to detect if a drawable is a Pixmap or Window, + * therefore we can only rely on those surfaces that we created + * ourselves to be Pixmaps, and treat everything else as a potential + * Window. + */ + if (src == dst || (!src->owns_pixmap && !dst->owns_pixmap)) { + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + int x1 = _cairo_fixed_integer_part (chunk->base[i].p1.x); + int y1 = _cairo_fixed_integer_part (chunk->base[i].p1.y); + int x2 = _cairo_fixed_integer_part (chunk->base[i].p2.x); + int y2 = _cairo_fixed_integer_part (chunk->base[i].p2.y); + XCopyArea (dst->dpy, d, dst->drawable, gc, + x1 + dx, y1 + dy, + x2 - x1, y2 - y1, + x1, y1); + } + } + } else { + XRectangle stack_rects[CAIRO_STACK_ARRAY_LENGTH (XRectangle)]; + XRectangle *rects = stack_rects; + + if (boxes->num_boxes > ARRAY_LENGTH (stack_rects)) { + rects = _cairo_malloc_ab (boxes->num_boxes, sizeof (XRectangle)); + if (unlikely (rects == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + j = 0; + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + int x1 = _cairo_fixed_integer_part (chunk->base[i].p1.x); + int y1 = _cairo_fixed_integer_part (chunk->base[i].p1.y); + int x2 = _cairo_fixed_integer_part (chunk->base[i].p2.x); + int y2 = _cairo_fixed_integer_part (chunk->base[i].p2.y); + + rects[j].x = x1; + rects[j].y = y1; + rects[j].width = x2 - x1; + rects[j].height = y2 - y1; + j++; + } + } + assert (j == boxes->num_boxes); + + XSetClipRectangles (dst->dpy, gc, 0, 0, rects, j, Unsorted); + + XCopyArea (dst->dpy, d, dst->drawable, gc, + extents->x + dx, extents->y + dy, + extents->width, extents->height, + extents->x, extents->y); + + XSetClipMask (dst->dpy, gc, None); + + if (rects != stack_rects) + free (rects); + } + } + + if (src->fallback && src->shm->damage->dirty) { + _cairo_xlib_shm_surface_mark_active (src->shm); + } else if (! src->owns_pixmap) { + XGCValues gcv; + + gcv.subwindow_mode = ClipByChildren; + XChangeGC (dst->display->display, gc, GCSubwindowMode, &gcv); + } + + _cairo_xlib_surface_put_gc (dst->display, dst, gc); + release (dst); + return CAIRO_STATUS_SUCCESS; +} + +static int +_render_operator (cairo_operator_t op) +{ + switch (op) { + case CAIRO_OPERATOR_CLEAR: + return PictOpClear; + + case CAIRO_OPERATOR_SOURCE: + return PictOpSrc; + case CAIRO_OPERATOR_OVER: + return PictOpOver; + case CAIRO_OPERATOR_IN: + return PictOpIn; + case CAIRO_OPERATOR_OUT: + return PictOpOut; + case CAIRO_OPERATOR_ATOP: + return PictOpAtop; + + case CAIRO_OPERATOR_DEST: + return PictOpDst; + case CAIRO_OPERATOR_DEST_OVER: + return PictOpOverReverse; + case CAIRO_OPERATOR_DEST_IN: + return PictOpInReverse; + case CAIRO_OPERATOR_DEST_OUT: + return PictOpOutReverse; + case CAIRO_OPERATOR_DEST_ATOP: + return PictOpAtopReverse; + + case CAIRO_OPERATOR_XOR: + return PictOpXor; + case CAIRO_OPERATOR_ADD: + return PictOpAdd; + case CAIRO_OPERATOR_SATURATE: + return PictOpSaturate; + + case CAIRO_OPERATOR_MULTIPLY: + return PictOpMultiply; + case CAIRO_OPERATOR_SCREEN: + return PictOpScreen; + case CAIRO_OPERATOR_OVERLAY: + return PictOpOverlay; + case CAIRO_OPERATOR_DARKEN: + return PictOpDarken; + case CAIRO_OPERATOR_LIGHTEN: + return PictOpLighten; + case CAIRO_OPERATOR_COLOR_DODGE: + return PictOpColorDodge; + case CAIRO_OPERATOR_COLOR_BURN: + return PictOpColorBurn; + case CAIRO_OPERATOR_HARD_LIGHT: + return PictOpHardLight; + case CAIRO_OPERATOR_SOFT_LIGHT: + return PictOpSoftLight; + case CAIRO_OPERATOR_DIFFERENCE: + return PictOpDifference; + case CAIRO_OPERATOR_EXCLUSION: + return PictOpExclusion; + case CAIRO_OPERATOR_HSL_HUE: + return PictOpHSLHue; + case CAIRO_OPERATOR_HSL_SATURATION: + return PictOpHSLSaturation; + case CAIRO_OPERATOR_HSL_COLOR: + return PictOpHSLColor; + case CAIRO_OPERATOR_HSL_LUMINOSITY: + return PictOpHSLLuminosity; + + default: + ASSERT_NOT_REACHED; + return PictOpOver; + } +} + +static cairo_bool_t +fill_reduces_to_source (cairo_operator_t op, + const cairo_color_t *color, + cairo_xlib_surface_t *dst) +{ + if (dst->base.is_clear || CAIRO_COLOR_IS_OPAQUE (color)) { + if (op == CAIRO_OPERATOR_OVER) + return TRUE; + if (op == CAIRO_OPERATOR_ADD) + return (dst->base.content & CAIRO_CONTENT_COLOR) == 0; + } + + return FALSE; +} + +static cairo_int_status_t +fill_rectangles (void *abstract_surface, + cairo_operator_t op, + const cairo_color_t *color, + cairo_rectangle_int_t *rects, + int num_rects) +{ + cairo_xlib_surface_t *dst = abstract_surface; + XRenderColor render_color; + int i; + + //X_DEBUG ((display->display, "fill_rectangles (dst=%x)", (unsigned int) surface->drawable)); + + if (fill_reduces_to_source (op, color, dst)) + op = CAIRO_OPERATOR_SOURCE; + + if (!CAIRO_RENDER_HAS_FILL_RECTANGLES(dst->display)) { + cairo_int_status_t status; + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (op == CAIRO_OPERATOR_SOURCE) + status = _cairo_xlib_core_fill_rectangles (dst, color, num_rects, rects); + return status; + } + + render_color.red = color->red_short; + render_color.green = color->green_short; + render_color.blue = color->blue_short; + render_color.alpha = color->alpha_short; + + _cairo_xlib_surface_ensure_picture (dst); + if (num_rects == 1) { + /* Take advantage of the protocol compaction that libXrender performs + * to amalgamate sequences of XRenderFillRectangle(). + */ + XRenderFillRectangle (dst->dpy, + _render_operator (op), + dst->picture, + &render_color, + rects->x, rects->y, + rects->width, rects->height); + } else { + XRectangle stack_xrects[CAIRO_STACK_ARRAY_LENGTH (XRectangle)]; + XRectangle *xrects = stack_xrects; + + if (num_rects > ARRAY_LENGTH (stack_xrects)) { + xrects = _cairo_malloc_ab (num_rects, sizeof (XRectangle)); + if (unlikely (xrects == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + for (i = 0; i < num_rects; i++) { + xrects[i].x = rects[i].x; + xrects[i].y = rects[i].y; + xrects[i].width = rects[i].width; + xrects[i].height = rects[i].height; + } + + XRenderFillRectangles (dst->dpy, + _render_operator (op), + dst->picture, + &render_color, xrects, num_rects); + + if (xrects != stack_xrects) + free (xrects); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +fill_boxes (void *abstract_surface, + cairo_operator_t op, + const cairo_color_t *color, + cairo_boxes_t *boxes) +{ + cairo_xlib_surface_t *dst = abstract_surface; + XRenderColor render_color; + + if (fill_reduces_to_source (op, color, dst)) + op = CAIRO_OPERATOR_SOURCE; + + if (!CAIRO_RENDER_HAS_FILL_RECTANGLES(dst->display)) { + cairo_int_status_t status; + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (op == CAIRO_OPERATOR_SOURCE) + status = _cairo_xlib_core_fill_boxes (dst, color, boxes); + return status; + } + + render_color.red = color->red_short; + render_color.green = color->green_short; + render_color.blue = color->blue_short; + render_color.alpha = color->alpha_short; + + _cairo_xlib_surface_ensure_picture (dst); + if (boxes->num_boxes == 1) { + int x1 = _cairo_fixed_integer_part (boxes->chunks.base[0].p1.x); + int y1 = _cairo_fixed_integer_part (boxes->chunks.base[0].p1.y); + int x2 = _cairo_fixed_integer_part (boxes->chunks.base[0].p2.x); + int y2 = _cairo_fixed_integer_part (boxes->chunks.base[0].p2.y); + + /* Take advantage of the protocol compaction that libXrender performs + * to amalgamate sequences of XRenderFillRectangle(). + */ + XRenderFillRectangle (dst->dpy, + _render_operator (op), + dst->picture, + &render_color, + x1, y1, + x2 - x1, y2 - y1); + } else { + XRectangle stack_xrects[CAIRO_STACK_ARRAY_LENGTH (XRectangle)]; + XRectangle *xrects = stack_xrects; + struct _cairo_boxes_chunk *chunk; + int i, j; + + if (boxes->num_boxes > ARRAY_LENGTH (stack_xrects)) { + xrects = _cairo_malloc_ab (boxes->num_boxes, sizeof (XRectangle)); + if (unlikely (xrects == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + j = 0; + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + int x1 = _cairo_fixed_integer_part (chunk->base[i].p1.x); + int y1 = _cairo_fixed_integer_part (chunk->base[i].p1.y); + int x2 = _cairo_fixed_integer_part (chunk->base[i].p2.x); + int y2 = _cairo_fixed_integer_part (chunk->base[i].p2.y); + + xrects[j].x = x1; + xrects[j].y = y1; + xrects[j].width = x2 - x1; + xrects[j].height = y2 - y1; + j++; + } + } + + XRenderFillRectangles (dst->dpy, + _render_operator (op), + dst->picture, + &render_color, xrects, j); + + if (xrects != stack_xrects) + free (xrects); + } + + return CAIRO_STATUS_SUCCESS; +} + +#if 0 +check_composite () + operation = _categorize_composite_operation (dst, op, src_pattern, + mask_pattern != NULL); + if (operation == DO_UNSUPPORTED) + return UNSUPPORTED ("unsupported operation"); + + //X_DEBUG ((display->display, "composite (dst=%x)", (unsigned int) dst->drawable)); + + operation = _recategorize_composite_operation (dst, op, src, &src_attr, + mask_pattern != NULL); + if (operation == DO_UNSUPPORTED) { + status = UNSUPPORTED ("unsupported operation"); + goto BAIL; + } +#endif + +static cairo_int_status_t +composite (void *abstract_dst, + cairo_operator_t op, + cairo_surface_t *abstract_src, + cairo_surface_t *abstract_mask, + int src_x, + int src_y, + int mask_x, + int mask_y, + int dst_x, + int dst_y, + unsigned int width, + unsigned int height) +{ + cairo_xlib_surface_t *dst = abstract_dst; + cairo_xlib_source_t *src = (cairo_xlib_source_t *)abstract_src; + + op = _render_operator (op); + + _cairo_xlib_surface_ensure_picture (dst); + if (abstract_mask) { + cairo_xlib_source_t *mask = (cairo_xlib_source_t *)abstract_mask; + + XRenderComposite (dst->dpy, op, + src->picture, mask->picture, dst->picture, + src_x, src_y, + mask_x, mask_y, + dst_x, dst_y, + width, height); + } else { + XRenderComposite (dst->dpy, op, + src->picture, 0, dst->picture, + src_x, src_y, + 0, 0, + dst_x, dst_y, + width, height); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +lerp (void *abstract_dst, + cairo_surface_t *abstract_src, + cairo_surface_t *abstract_mask, + int src_x, + int src_y, + int mask_x, + int mask_y, + int dst_x, + int dst_y, + unsigned int width, + unsigned int height) +{ + cairo_xlib_surface_t *dst = abstract_dst; + cairo_xlib_source_t *src = (cairo_xlib_source_t *)abstract_src; + cairo_xlib_source_t *mask = (cairo_xlib_source_t *)abstract_mask; + + _cairo_xlib_surface_ensure_picture (dst); + XRenderComposite (dst->dpy, PictOpOutReverse, + mask->picture, None, dst->picture, + mask_x, mask_y, + 0, 0, + dst_x, dst_y, + width, height); + XRenderComposite (dst->dpy, PictOpAdd, + src->picture, mask->picture, dst->picture, + src_x, src_y, + mask_x, mask_y, + dst_x, dst_y, + width, height); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +composite_boxes (void *abstract_dst, + cairo_operator_t op, + cairo_surface_t *abstract_src, + cairo_surface_t *abstract_mask, + int src_x, + int src_y, + int mask_x, + int mask_y, + int dst_x, + int dst_y, + cairo_boxes_t *boxes, + const cairo_rectangle_int_t *extents) +{ + cairo_xlib_surface_t *dst = abstract_dst; + Picture src = ((cairo_xlib_source_t *)abstract_src)->picture; + Picture mask = abstract_mask ? ((cairo_xlib_source_t *)abstract_mask)->picture : 0; + XRectangle stack_rects[CAIRO_STACK_ARRAY_LENGTH (XRectangle)]; + XRectangle *rects = stack_rects; + struct _cairo_boxes_chunk *chunk; + int i, j; + + op = _render_operator (op); + _cairo_xlib_surface_ensure_picture (dst); + if (boxes->num_boxes == 1) { + int x1 = _cairo_fixed_integer_part (boxes->chunks.base[0].p1.x); + int y1 = _cairo_fixed_integer_part (boxes->chunks.base[0].p1.y); + int x2 = _cairo_fixed_integer_part (boxes->chunks.base[0].p2.x); + int y2 = _cairo_fixed_integer_part (boxes->chunks.base[0].p2.y); + + XRenderComposite (dst->dpy, op, + src, mask, dst->picture, + x1 + src_x, y1 + src_y, + x1 + mask_x, y1 + mask_y, + x1 - dst_x, y1 - dst_y, + x2 - x1, y2 - y1); + return CAIRO_STATUS_SUCCESS; + } + + if (boxes->num_boxes > ARRAY_LENGTH (stack_rects)) { + rects = _cairo_malloc_ab (boxes->num_boxes, sizeof (XRectangle)); + if (unlikely (rects == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + j = 0; + for (chunk = &boxes->chunks; chunk; chunk = chunk->next) { + for (i = 0; i < chunk->count; i++) { + int x1 = _cairo_fixed_integer_part (chunk->base[i].p1.x); + int y1 = _cairo_fixed_integer_part (chunk->base[i].p1.y); + int x2 = _cairo_fixed_integer_part (chunk->base[i].p2.x); + int y2 = _cairo_fixed_integer_part (chunk->base[i].p2.y); + + rects[j].x = x1 - dst_x; + rects[j].y = y1 - dst_y; + rects[j].width = x2 - x1; + rects[j].height = y2 - y1; + j++; + } + } + assert (j == boxes->num_boxes); + + XRenderSetPictureClipRectangles (dst->dpy, + dst->picture, + 0, 0, + rects, j); + if (rects != stack_rects) + free (rects); + + XRenderComposite (dst->dpy, op, + src, mask, dst->picture, + extents->x + src_x, extents->y + src_y, + extents->x + mask_x, extents->y + mask_y, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + + set_clip_region (dst, NULL); + + return CAIRO_STATUS_SUCCESS; +} + +/* font rendering */ + +void +_cairo_xlib_font_close (cairo_xlib_font_t *priv) +{ + cairo_xlib_display_t *display = (cairo_xlib_display_t *)priv->base.key; + int i; + + /* XXX All I really want is to do is zap my glyphs... */ + _cairo_scaled_font_reset_cache (priv->font); + + for (i = 0; i < NUM_GLYPHSETS; i++) { + cairo_xlib_font_glyphset_t *info; + + info = &priv->glyphset[i]; + if (info->glyphset) + XRenderFreeGlyphSet (display->display, info->glyphset); + } + + /* XXX locking */ + cairo_list_del (&priv->link); + cairo_list_del (&priv->base.link); + free (priv); +} + +static void +_cairo_xlib_font_fini (cairo_scaled_font_private_t *abstract_private, + cairo_scaled_font_t *font) +{ + cairo_xlib_font_t *priv = (cairo_xlib_font_t *) abstract_private; + cairo_status_t status; + cairo_xlib_display_t *display; + int i; + + cairo_list_del (&priv->base.link); + cairo_list_del (&priv->link); + + status = _cairo_xlib_display_acquire (priv->device, &display); + if (unlikely (status)) /* this should be impossible but leak just in case */ + goto BAIL; + + for (i = 0; i < NUM_GLYPHSETS; i++) { + cairo_xlib_font_glyphset_t *info; + + info = &priv->glyphset[i]; + if (info->glyphset) + XRenderFreeGlyphSet (display->display, info->glyphset); + } + + cairo_device_release (&display->base); +BAIL: + cairo_device_destroy (priv->device); + free (priv); +} + +static cairo_xlib_font_t * +_cairo_xlib_font_create (cairo_xlib_display_t *display, + cairo_scaled_font_t *font) +{ + cairo_xlib_font_t *priv; + int i; + + priv = _cairo_calloc (sizeof (cairo_xlib_font_t)); + if (unlikely (priv == NULL)) + return NULL; + + _cairo_scaled_font_attach_private (font, &priv->base, display, + _cairo_xlib_font_fini); + + priv->device = cairo_device_reference (&display->base); + priv->font = font; + cairo_list_add (&priv->link, &display->fonts); + + for (i = 0; i < NUM_GLYPHSETS; i++) { + cairo_xlib_font_glyphset_t *info = &priv->glyphset[i]; + switch (i) { + case GLYPHSET_INDEX_ARGB32: info->format = CAIRO_FORMAT_ARGB32; break; + case GLYPHSET_INDEX_A8: info->format = CAIRO_FORMAT_A8; break; + case GLYPHSET_INDEX_A1: info->format = CAIRO_FORMAT_A1; break; + default: ASSERT_NOT_REACHED; break; + } + info->xrender_format = NULL; + info->glyphset = None; + info->to_free.count = 0; + } + + return priv; +} + +static int +_cairo_xlib_get_glyphset_index_for_format (cairo_format_t format) +{ + if (format == CAIRO_FORMAT_A8) + return GLYPHSET_INDEX_A8; + if (format == CAIRO_FORMAT_A1) + return GLYPHSET_INDEX_A1; + + assert (format == CAIRO_FORMAT_ARGB32); + return GLYPHSET_INDEX_ARGB32; +} + +static inline cairo_xlib_font_t * +_cairo_xlib_font_get (const cairo_xlib_display_t *display, + cairo_scaled_font_t *font) +{ + return (cairo_xlib_font_t *)_cairo_scaled_font_find_private (font, display); +} + +typedef struct { + cairo_scaled_glyph_private_t base; + + + cairo_xlib_font_glyphset_t *glyphset; +} cairo_xlib_glyph_private_t; + +static void +_cairo_xlib_glyph_fini (cairo_scaled_glyph_private_t *glyph_private, + cairo_scaled_glyph_t *glyph, + cairo_scaled_font_t *font) +{ + cairo_xlib_glyph_private_t *priv = (cairo_xlib_glyph_private_t *)glyph_private; + + if (! font->finished) { + cairo_xlib_font_t *font_private; + struct _cairo_xlib_font_glyphset_free_glyphs *to_free; + cairo_xlib_font_glyphset_t *info; + + font_private = _cairo_xlib_font_get (glyph_private->key, font); + assert (font_private); + + info = priv->glyphset; + to_free = &info->to_free; + if (to_free->count == ARRAY_LENGTH (to_free->indices)) { + cairo_xlib_display_t *display; + + if (_cairo_xlib_display_acquire (font_private->device, + &display) == CAIRO_STATUS_SUCCESS) { + XRenderFreeGlyphs (display->display, + info->glyphset, + to_free->indices, + to_free->count); + cairo_device_release (&display->base); + } + + to_free->count = 0; + } + + to_free->indices[to_free->count++] = glyph->hash_entry.hash; + } + + cairo_list_del (&glyph_private->link); + free (glyph_private); +} + +static cairo_status_t +_cairo_xlib_glyph_attach (cairo_xlib_display_t *display, + cairo_scaled_glyph_t *glyph, + cairo_xlib_font_glyphset_t *info) +{ + cairo_xlib_glyph_private_t *priv; + + priv = _cairo_calloc (sizeof (*priv)); + if (unlikely (priv == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_scaled_glyph_attach_private (glyph, &priv->base, display, + _cairo_xlib_glyph_fini); + priv->glyphset = info; + + glyph->dev_private = info; + glyph->dev_private_key = display; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_xlib_font_glyphset_t * +_cairo_xlib_font_get_glyphset_info_for_format (cairo_xlib_display_t *display, + cairo_scaled_font_t *font, + cairo_format_t format) +{ + cairo_xlib_font_t *priv; + cairo_xlib_font_glyphset_t *info; + int glyphset_index; + + glyphset_index = _cairo_xlib_get_glyphset_index_for_format (format); + + priv = _cairo_xlib_font_get (display, font); + if (priv == NULL) { + priv = _cairo_xlib_font_create (display, font); + if (priv == NULL) + return NULL; + } + + info = &priv->glyphset[glyphset_index]; + if (info->glyphset == None) { + info->xrender_format = + _cairo_xlib_display_get_xrender_format (display, info->format); + info->glyphset = XRenderCreateGlyphSet (display->display, + info->xrender_format); + } + + return info; +} + +static cairo_bool_t +has_pending_free_glyph (cairo_xlib_font_glyphset_t *info, + unsigned long glyph_index) +{ + struct _cairo_xlib_font_glyphset_free_glyphs *to_free; + int i; + + to_free = &info->to_free; + for (i = 0; i < to_free->count; i++) { + if (to_free->indices[i] == glyph_index) { + to_free->count--; + memmove (&to_free->indices[i], + &to_free->indices[i+1], + (to_free->count - i) * sizeof (to_free->indices[0])); + return TRUE; + } + } + + return FALSE; +} + +static cairo_xlib_font_glyphset_t * +find_pending_free_glyph (cairo_xlib_display_t *display, + cairo_scaled_font_t *font, + unsigned long glyph_index, + cairo_image_surface_t *surface) +{ + cairo_xlib_font_t *priv; + int i; + + priv = _cairo_xlib_font_get (display, font); + if (priv == NULL) + return NULL; + + if (surface != NULL) { + i = _cairo_xlib_get_glyphset_index_for_format (surface->format); + if (has_pending_free_glyph (&priv->glyphset[i], glyph_index)) + return &priv->glyphset[i]; + } else { + for (i = 0; i < NUM_GLYPHSETS; i++) { + if (has_pending_free_glyph (&priv->glyphset[i], glyph_index)) + return &priv->glyphset[i]; + } + } + + return NULL; +} + +static cairo_status_t +_cairo_xlib_surface_add_glyph (cairo_xlib_display_t *display, + cairo_scaled_font_t *font, + cairo_scaled_glyph_t **pscaled_glyph) +{ + XGlyphInfo glyph_info; + unsigned long glyph_index; + unsigned char *data; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + cairo_scaled_glyph_t *glyph = *pscaled_glyph; + cairo_image_surface_t *glyph_surface = glyph->surface; + cairo_bool_t already_had_glyph_surface; + cairo_xlib_font_glyphset_t *info; + + glyph_index = glyph->hash_entry.hash; + + /* check to see if we have a pending XRenderFreeGlyph for this glyph */ + info = find_pending_free_glyph (display, font, glyph_index, glyph_surface); + if (info != NULL) + return _cairo_xlib_glyph_attach (display, glyph, info); + + if (glyph_surface == NULL) { + status = _cairo_scaled_glyph_lookup (font, + glyph_index, + CAIRO_SCALED_GLYPH_INFO_METRICS | + CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL, /* foreground color */ + pscaled_glyph); + if (unlikely (status)) + return status; + + glyph = *pscaled_glyph; + glyph_surface = glyph->surface; + already_had_glyph_surface = FALSE; + } else { + already_had_glyph_surface = TRUE; + } + + info = _cairo_xlib_font_get_glyphset_info_for_format (display, font, + glyph_surface->format); + +#if 0 + /* If the glyph surface has zero height or width, we create + * a clear 1x1 surface, to avoid various X server bugs. + */ + if (glyph_surface->width == 0 || glyph_surface->height == 0) { + cairo_surface_t *tmp_surface; + + tmp_surface = cairo_image_surface_create (info->format, 1, 1); + status = tmp_surface->status; + if (unlikely (status)) + goto BAIL; + + tmp_surface->device_transform = glyph_surface->base.device_transform; + tmp_surface->device_transform_inverse = glyph_surface->base.device_transform_inverse; + + glyph_surface = (cairo_image_surface_t *) tmp_surface; + } +#endif + + /* If the glyph format does not match the font format, then we + * create a temporary surface for the glyph image with the font's + * format. + */ + if (glyph_surface->format != info->format) { + cairo_surface_pattern_t pattern; + cairo_surface_t *tmp_surface; + + tmp_surface = cairo_image_surface_create (info->format, + glyph_surface->width, + glyph_surface->height); + status = tmp_surface->status; + if (unlikely (status)) + goto BAIL; + + tmp_surface->device_transform = glyph_surface->base.device_transform; + tmp_surface->device_transform_inverse = glyph_surface->base.device_transform_inverse; + + _cairo_pattern_init_for_surface (&pattern, &glyph_surface->base); + status = _cairo_surface_paint (tmp_surface, + CAIRO_OPERATOR_SOURCE, &pattern.base, + NULL); + _cairo_pattern_fini (&pattern.base); + + glyph_surface = (cairo_image_surface_t *) tmp_surface; + + if (unlikely (status)) + goto BAIL; + } + + /* XXX: FRAGILE: We're ignore device_transform scaling here. A bug? */ + glyph_info.x = _cairo_lround (glyph_surface->base.device_transform.x0); + glyph_info.y = _cairo_lround (glyph_surface->base.device_transform.y0); + glyph_info.width = glyph_surface->width; + glyph_info.height = glyph_surface->height; + glyph_info.xOff = glyph->x_advance; + glyph_info.yOff = glyph->y_advance; + + data = glyph_surface->data; + + /* flip formats around */ + switch (_cairo_xlib_get_glyphset_index_for_format (glyph->surface->format)) { + case GLYPHSET_INDEX_A1: + /* local bitmaps are always stored with bit == byte */ + if (_cairo_is_little_endian() != (BitmapBitOrder (display->display) == LSBFirst)) { + int c = glyph_surface->stride * glyph_surface->height; + unsigned char *d; + unsigned char *new, *n; + + if (c == 0) + break; + + new = _cairo_malloc (c); + if (!new) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL; + } + n = new; + d = data; + do { + char b = *d++; + b = ((b << 1) & 0xaa) | ((b >> 1) & 0x55); + b = ((b << 2) & 0xcc) | ((b >> 2) & 0x33); + b = ((b << 4) & 0xf0) | ((b >> 4) & 0x0f); + *n++ = b; + } while (--c); + data = new; + } + break; + case GLYPHSET_INDEX_A8: + break; + case GLYPHSET_INDEX_ARGB32: + if (_cairo_is_little_endian() != (ImageByteOrder (display->display) == LSBFirst)) { + unsigned int c = glyph_surface->stride * glyph_surface->height / 4; + const uint32_t *d; + uint32_t *new, *n; + + if (c == 0) + break; + + new = _cairo_malloc (4 * c); + if (unlikely (new == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL; + } + n = new; + d = (uint32_t *) data; + do { + *n++ = bswap_32 (*d); + d++; + } while (--c); + data = (uint8_t *) new; + } + break; + default: + ASSERT_NOT_REACHED; + break; + } + /* XXX assume X server wants pixman padding. Xft assumes this as well */ + + XRenderAddGlyphs (display->display, info->glyphset, + &glyph_index, &glyph_info, 1, + (char *) data, + glyph_surface->stride * glyph_surface->height); + + if (data != glyph_surface->data) + free (data); + + status = _cairo_xlib_glyph_attach (display, glyph, info); + + BAIL: + if (glyph_surface != glyph->surface) + cairo_surface_destroy (&glyph_surface->base); + + /* if the scaled glyph didn't already have a surface attached + * to it, release the created surface now that we have it + * uploaded to the X server. If the surface has already been + * there (eg. because image backend requested it), leave it in + * the cache + */ + if (!already_had_glyph_surface) + _cairo_scaled_glyph_set_surface (glyph, font, NULL); + + return status; +} + +typedef void (*cairo_xrender_composite_text_func_t) + (Display *dpy, + int op, + Picture src, + Picture dst, + _Xconst XRenderPictFormat *maskFormat, + int xSrc, + int ySrc, + int xDst, + int yDst, + _Xconst XGlyphElt8 *elts, + int nelt); + +/* Build a struct of the same size of #cairo_glyph_t that can be used both as + * an input glyph with double coordinates, and as "working" glyph with + * integer from-current-point offsets. */ +typedef union { + cairo_glyph_t d; + unsigned long index; + struct { + unsigned long index; + int x; + int y; + } i; +} cairo_xlib_glyph_t; + +/* compile-time assert that #cairo_xlib_glyph_t is the same size as #cairo_glyph_t */ +COMPILE_TIME_ASSERT (sizeof (cairo_xlib_glyph_t) == sizeof (cairo_glyph_t)); + +/* Start a new element for the first glyph, + * or for any glyph that has unexpected position, + * or if current element has too many glyphs + * (Xrender limits each element to 252 glyphs, we limit them to 128) + * + * These same conditions need to be mirrored between + * _cairo_xlib_surface_emit_glyphs and _emit_glyph_chunks + */ +#define _start_new_glyph_elt(count, glyph) \ + (((count) & 127) == 0 || (glyph)->i.x || (glyph)->i.y) + +static cairo_status_t +_emit_glyphs_chunk (cairo_xlib_display_t *display, + cairo_xlib_surface_t *dst, + int dst_x, int dst_y, + cairo_xlib_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *font, + cairo_bool_t use_mask, + cairo_operator_t op, + cairo_xlib_source_t *src, + int src_x, int src_y, + /* info for this chunk */ + int num_elts, + int width, + cairo_xlib_font_glyphset_t *info) +{ + /* Which XRenderCompositeText function to use */ + cairo_xrender_composite_text_func_t composite_text_func; + int size; + + /* Element buffer stuff */ + XGlyphElt8 *elts; + XGlyphElt8 stack_elts[CAIRO_STACK_ARRAY_LENGTH (XGlyphElt8)]; + + /* Reuse the input glyph array for output char generation */ + char *char8 = (char *) glyphs; + unsigned short *char16 = (unsigned short *) glyphs; + unsigned int *char32 = (unsigned int *) glyphs; + + int i; + int nelt; /* Element index */ + int n; /* Num output glyphs in current element */ + int j; /* Num output glyphs so far */ + + switch (width) { + case 1: + /* don't cast the 8-variant, to catch possible mismatches */ + composite_text_func = XRenderCompositeText8; + size = sizeof (char); + break; + case 2: + composite_text_func = (cairo_xrender_composite_text_func_t) XRenderCompositeText16; + size = sizeof (unsigned short); + break; + default: + case 4: + composite_text_func = (cairo_xrender_composite_text_func_t) XRenderCompositeText32; + size = sizeof (unsigned int); + } + + /* Allocate element array */ + if (num_elts <= ARRAY_LENGTH (stack_elts)) { + elts = stack_elts; + } else { + elts = _cairo_malloc_ab (num_elts, sizeof (XGlyphElt8)); + if (unlikely (elts == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + /* Fill them in */ + nelt = 0; + n = 0; + j = 0; + for (i = 0; i < num_glyphs; i++) { + /* Start a new element for first output glyph, + * or for any glyph that has unexpected position, + * or if current element has too many glyphs. + * + * These same conditions are mirrored in _cairo_xlib_surface_emit_glyphs() + */ + if (_start_new_glyph_elt (j, &glyphs[i])) { + if (j) { + elts[nelt].nchars = n; + nelt++; + n = 0; + } + elts[nelt].chars = char8 + size * j; + elts[nelt].glyphset = info->glyphset; + elts[nelt].xOff = glyphs[i].i.x; + elts[nelt].yOff = glyphs[i].i.y; + } + + switch (width) { + case 1: char8 [j] = (char) glyphs[i].index; break; + case 2: char16[j] = (unsigned short) glyphs[i].index; break; + default: + case 4: char32[j] = (unsigned int) glyphs[i].index; break; + } + + n++; + j++; + } + + if (n) { + elts[nelt].nchars = n; + nelt++; + } + + /* Check that we agree with _cairo_xlib_surface_emit_glyphs() on the + * expected number of xGlyphElts. */ + assert (nelt == num_elts); + + composite_text_func (display->display, op, + src->picture, + dst->picture, + use_mask ? info->xrender_format : NULL, + src_x + elts[0].xOff + dst_x, + src_y + elts[0].yOff + dst_y, + elts[0].xOff, elts[0].yOff, + (XGlyphElt8 *) elts, nelt); + + if (elts != stack_elts) + free (elts); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +check_composite_glyphs (const cairo_composite_rectangles_t *extents, + cairo_scaled_font_t *font, + cairo_glyph_t *glyphs, + int *num_glyphs) +{ + cairo_xlib_surface_t *dst = (cairo_xlib_surface_t *)extents->surface; + cairo_xlib_display_t *display = dst->display; + int max_request_size, size; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (! CAIRO_RENDER_SUPPORTS_OPERATOR (display, extents->op)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* The glyph coordinates must be representable in an int16_t. + * When possible, they will be expressed as an offset from the + * previous glyph, otherwise they will be an offset from the + * surface origin. If we can't guarantee this to be possible, + * fallback. + */ + if (extents->bounded.x + extents->bounded.width > INT16_MAX || + extents->bounded.y + extents->bounded.height> INT16_MAX || + extents->bounded.x < INT16_MIN || + extents->bounded.y < INT16_MIN) + { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + /* Approximate the size of the largest glyph and fallback if we can not + * upload it to the xserver. + */ + size = ceil (font->max_scale); + size = 4 * size * size; + max_request_size = (XExtendedMaxRequestSize (display->display) ? XExtendedMaxRequestSize (display->display) + : XMaxRequestSize (display->display)) * 4 - + sz_xRenderAddGlyphsReq - + sz_xGlyphInfo - + 8; + if (size >= max_request_size) + return CAIRO_INT_STATUS_UNSUPPORTED; + + return CAIRO_STATUS_SUCCESS; +} + +/* sz_xGlyphtElt required alignment to a 32-bit boundary, so ensure we have + * enough room for padding */ +#define _cairo_sz_xGlyphElt (sz_xGlyphElt + 4) + +#define PHASE(x) ((int)(floor (4 * (x + 0.125)) - 4 * floor (x + 0.125))) +#define POSITION(x) ((int) floor (x + 0.125)) + +static cairo_int_status_t +composite_glyphs (void *surface, + cairo_operator_t op, + cairo_surface_t *_src, + int src_x, + int src_y, + int dst_x, + int dst_y, + cairo_composite_glyphs_info_t *info) +{ + cairo_xlib_surface_t *dst = surface; + cairo_xlib_glyph_t *glyphs = (cairo_xlib_glyph_t *)info->glyphs; + cairo_xlib_source_t *src = (cairo_xlib_source_t *)_src; + cairo_xlib_display_t *display = dst->display; + cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS; + cairo_scaled_glyph_t *glyph; + cairo_fixed_t x = dst_x, y = dst_y; + cairo_xlib_font_glyphset_t *glyphset = NULL, *this_glyphset_info; + + unsigned long max_index = 0; + int width = 1; + int num_elts = 0; + int num_out_glyphs = 0; + int num_glyphs = info->num_glyphs; + + int max_request_size = XMaxRequestSize (display->display) * 4 + - MAX (sz_xRenderCompositeGlyphs8Req, + MAX(sz_xRenderCompositeGlyphs16Req, + sz_xRenderCompositeGlyphs32Req)); + int request_size = 0; + int i; + + op = _render_operator (op), + _cairo_xlib_surface_ensure_picture (dst); + for (i = 0; i < num_glyphs; i++) { + unsigned long xphase, yphase; + int this_x, this_y; + int old_width; + + xphase = PHASE(glyphs[i].d.x); + yphase = PHASE(glyphs[i].d.y); + + glyphs[i].index |= (xphase << 24) | (yphase << 26); + + status = _cairo_scaled_glyph_lookup (info->font, + glyphs[i].index, + CAIRO_SCALED_GLYPH_INFO_METRICS, + NULL, /* foreground color */ + &glyph); + if (unlikely (status)) + return status; + + this_x = POSITION (glyphs[i].d.x); + this_y = POSITION (glyphs[i].d.y); + + /* Send unsent glyphs to the server */ + if (glyph->dev_private_key != display) { + status = _cairo_xlib_surface_add_glyph (display, info->font, &glyph); + if (unlikely (status)) + return status; + } + + this_glyphset_info = glyph->dev_private; + if (!glyphset) + glyphset = this_glyphset_info; + + /* The invariant here is that we can always flush the glyphs + * accumulated before this one, using old_width, and they + * would fit in the request. + */ + old_width = width; + + /* Update max glyph index */ + if (glyphs[i].index > max_index) { + max_index = glyphs[i].index; + if (max_index >= 65536) + width = 4; + else if (max_index >= 256) + width = 2; + if (width != old_width) + request_size += (width - old_width) * num_out_glyphs; + } + + /* If we will pass the max request size by adding this glyph, + * flush current glyphs. Note that we account for a + * possible element being added below. + * + * Also flush if changing glyphsets, as Xrender limits one mask + * format per request, so we can either break up, or use a + * wide-enough mask format. We do the former. One reason to + * prefer the latter is the fact that Xserver ADDs all glyphs + * to the mask first, and then composes that to final surface, + * though it's not a big deal. + * + * If the glyph has a coordinate which cannot be represented + * as a 16-bit offset from the previous glyph, flush the + * current chunk. The current glyph will be the first one in + * the next chunk, thus its coordinates will be an offset from + * the destination origin. This offset is guaranteed to be + * representable as 16-bit offset (otherwise we would have + * fallen back). + */ + if (request_size + width > max_request_size - _cairo_sz_xGlyphElt || + this_x - x > INT16_MAX || this_x - x < INT16_MIN || + this_y - y > INT16_MAX || this_y - y < INT16_MIN || + (this_glyphset_info != glyphset)) { + status = _emit_glyphs_chunk (display, dst, dst_x, dst_y, + glyphs, i, info->font, info->use_mask, + op, src, src_x, src_y, + num_elts, old_width, glyphset); + if (unlikely (status)) + return status; + + glyphs += i; + num_glyphs -= i; + i = 0; + max_index = glyphs[i].index; + width = max_index < 256 ? 1 : max_index < 65536 ? 2 : 4; + request_size = 0; + num_elts = 0; + num_out_glyphs = 0; + x = y = 0; + glyphset = this_glyphset_info; + } + + /* Convert absolute glyph position to relative-to-current-point + * position */ + glyphs[i].i.x = this_x - x; + glyphs[i].i.y = this_y - y; + + /* Start a new element for the first glyph, + * or for any glyph that has unexpected position, + * or if current element has too many glyphs. + * + * These same conditions are mirrored in _emit_glyphs_chunk(). + */ + if (_start_new_glyph_elt (num_out_glyphs, &glyphs[i])) { + num_elts++; + request_size += _cairo_sz_xGlyphElt; + } + + /* adjust current-position */ + x = this_x + glyph->x_advance; + y = this_y + glyph->y_advance; + + num_out_glyphs++; + request_size += width; + } + + if (num_elts) { + status = _emit_glyphs_chunk (display, dst, dst_x, dst_y, + glyphs, i, info->font, info->use_mask, + op, src, src_x, src_y, + num_elts, width, glyphset); + } + + return status; +} + +const cairo_compositor_t * +_cairo_xlib_mask_compositor_get (void) +{ + static cairo_atomic_once_t once = CAIRO_ATOMIC_ONCE_INIT; + static cairo_mask_compositor_t compositor; + + if (_cairo_atomic_init_once_enter(&once)) { + _cairo_mask_compositor_init (&compositor, + _cairo_xlib_fallback_compositor_get ()); + + compositor.acquire = acquire; + compositor.release = release; + compositor.set_clip_region = set_clip_region; + compositor.pattern_to_surface = _cairo_xlib_source_create_for_pattern; + compositor.draw_image_boxes = draw_image_boxes; + compositor.fill_rectangles = fill_rectangles; + compositor.fill_boxes = fill_boxes; + compositor.copy_boxes = copy_boxes; + compositor.check_composite = check_composite; + compositor.composite = composite; + //compositor.check_composite_boxes = check_composite_boxes; + compositor.composite_boxes = composite_boxes; + compositor.check_composite_glyphs = check_composite_glyphs; + compositor.composite_glyphs = composite_glyphs; + + _cairo_atomic_init_once_leave(&once); + } + + return &compositor.base; +} + +#define CAIRO_FIXED_16_16_MIN -32768 +#define CAIRO_FIXED_16_16_MAX 32767 + +static cairo_bool_t +line_exceeds_16_16 (const cairo_line_t *line) +{ + return + line->p1.x < _cairo_fixed_from_int (CAIRO_FIXED_16_16_MIN) || + line->p1.x > _cairo_fixed_from_int (CAIRO_FIXED_16_16_MAX) || + line->p2.x < _cairo_fixed_from_int (CAIRO_FIXED_16_16_MIN) || + line->p2.x > _cairo_fixed_from_int (CAIRO_FIXED_16_16_MAX) || + line->p1.y < _cairo_fixed_from_int (CAIRO_FIXED_16_16_MIN) || + line->p1.y > _cairo_fixed_from_int (CAIRO_FIXED_16_16_MAX) || + line->p2.y < _cairo_fixed_from_int (CAIRO_FIXED_16_16_MIN) || + line->p2.y > _cairo_fixed_from_int (CAIRO_FIXED_16_16_MAX); +} + +static void +project_line_x_onto_16_16 (const cairo_line_t *line, + cairo_fixed_t top, + cairo_fixed_t bottom, + XLineFixed *out) +{ + cairo_point_double_t p1, p2; + double m; + + p1.x = _cairo_fixed_to_double (line->p1.x); + p1.y = _cairo_fixed_to_double (line->p1.y); + + p2.x = _cairo_fixed_to_double (line->p2.x); + p2.y = _cairo_fixed_to_double (line->p2.y); + + m = (p2.x - p1.x) / (p2.y - p1.y); + out->p1.x = _cairo_fixed_16_16_from_double (p1.x + m * _cairo_fixed_to_double (top - line->p1.y)); + out->p2.x = _cairo_fixed_16_16_from_double (p1.x + m * _cairo_fixed_to_double (bottom - line->p1.y)); +} +#if 0 +static cairo_int_status_T +check_composite_trapezoids () +{ + operation = _categorize_composite_operation (dst, op, pattern, TRUE); + if (operation == DO_UNSUPPORTED) + return UNSUPPORTED ("unsupported operation"); + + operation = _recategorize_composite_operation (dst, op, src, + &attributes, TRUE); + if (operation == DO_UNSUPPORTED) { + status = UNSUPPORTED ("unsupported operation"); + goto BAIL; + } + +} +#endif + +static cairo_int_status_t +composite_traps (void *abstract_dst, + cairo_operator_t op, + cairo_surface_t *abstract_src, + int src_x, + int src_y, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_antialias_t antialias, + cairo_traps_t *traps) +{ + cairo_xlib_surface_t *dst = abstract_dst; + cairo_xlib_display_t *display = dst->display; + cairo_xlib_source_t *src = (cairo_xlib_source_t *)abstract_src; + XRenderPictFormat *pict_format; + XTrapezoid xtraps_stack[CAIRO_STACK_ARRAY_LENGTH (XTrapezoid)]; + XTrapezoid *xtraps = xtraps_stack; + int dx, dy; + int i; + + //X_DEBUG ((display->display, "composite_trapezoids (dst=%x)", (unsigned int) dst->drawable)); + + if (traps->num_traps == 0) + return CAIRO_STATUS_SUCCESS; + + if (dst->base.is_clear && + (op == CAIRO_OPERATOR_OVER || op == CAIRO_OPERATOR_ADD)) + { + op = CAIRO_OPERATOR_SOURCE; + } + + pict_format = + _cairo_xlib_display_get_xrender_format (display, + antialias == CAIRO_ANTIALIAS_NONE ? CAIRO_FORMAT_A1 : CAIRO_FORMAT_A8); + + if (traps->num_traps > ARRAY_LENGTH (xtraps_stack)) { + xtraps = _cairo_malloc_ab (traps->num_traps, sizeof (XTrapezoid)); + if (unlikely (xtraps == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + dx = -dst_x << 16; + dy = -dst_y << 16; + for (i = 0; i < traps->num_traps; i++) { + cairo_trapezoid_t *t = &traps->traps[i]; + + /* top/bottom will be clamped to surface bounds */ + xtraps[i].top = _cairo_fixed_to_16_16(t->top) + dy; + xtraps[i].bottom = _cairo_fixed_to_16_16(t->bottom) + dy; + + /* However, all the other coordinates will have been left untouched so + * as not to introduce numerical error. Recompute them if they + * exceed the 16.16 limits. + */ + if (unlikely (line_exceeds_16_16 (&t->left))) { + project_line_x_onto_16_16 (&t->left, t->top, t->bottom, + &xtraps[i].left); + xtraps[i].left.p1.x += dx; + xtraps[i].left.p2.x += dx; + xtraps[i].left.p1.y = xtraps[i].top; + xtraps[i].left.p2.y = xtraps[i].bottom; + } else { + xtraps[i].left.p1.x = _cairo_fixed_to_16_16(t->left.p1.x) + dx; + xtraps[i].left.p1.y = _cairo_fixed_to_16_16(t->left.p1.y) + dy; + xtraps[i].left.p2.x = _cairo_fixed_to_16_16(t->left.p2.x) + dx; + xtraps[i].left.p2.y = _cairo_fixed_to_16_16(t->left.p2.y) + dy; + } + + if (unlikely (line_exceeds_16_16 (&t->right))) { + project_line_x_onto_16_16 (&t->right, t->top, t->bottom, + &xtraps[i].right); + xtraps[i].right.p1.x += dx; + xtraps[i].right.p2.x += dx; + xtraps[i].right.p1.y = xtraps[i].top; + xtraps[i].right.p2.y = xtraps[i].bottom; + } else { + xtraps[i].right.p1.x = _cairo_fixed_to_16_16(t->right.p1.x) + dx; + xtraps[i].right.p1.y = _cairo_fixed_to_16_16(t->right.p1.y) + dy; + xtraps[i].right.p2.x = _cairo_fixed_to_16_16(t->right.p2.x) + dx; + xtraps[i].right.p2.y = _cairo_fixed_to_16_16(t->right.p2.y) + dy; + } + } + + if (xtraps[0].left.p1.y < xtraps[0].left.p2.y) { + src_x += _cairo_fixed_16_16_floor (xtraps[0].left.p1.x); + src_y += _cairo_fixed_16_16_floor (xtraps[0].left.p1.y); + } else { + src_x += _cairo_fixed_16_16_floor (xtraps[0].left.p2.x); + src_y += _cairo_fixed_16_16_floor (xtraps[0].left.p2.y); + } + src_x += dst_x; + src_y += dst_y; + + _cairo_xlib_surface_ensure_picture (dst); + _cairo_xlib_surface_set_precision (dst, antialias); + XRenderCompositeTrapezoids (dst->dpy, + _render_operator (op), + src->picture, dst->picture, + pict_format, + src_x, src_y, + xtraps, traps->num_traps); + + if (xtraps != xtraps_stack) + free (xtraps); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +composite_tristrip (void *abstract_dst, + cairo_operator_t op, + cairo_surface_t *abstract_src, + int src_x, + int src_y, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_antialias_t antialias, + cairo_tristrip_t *strip) +{ + cairo_xlib_surface_t *dst = abstract_dst; + cairo_xlib_display_t *display = dst->display; + cairo_xlib_source_t *src = (cairo_xlib_source_t *)abstract_src; + XRenderPictFormat *pict_format; + XPointFixed points_stack[CAIRO_STACK_ARRAY_LENGTH (XPointFixed)]; + XPointFixed *points = points_stack; + int dx, dy; + int i; + + //X_DEBUG ((display->display, "composite_trapezoids (dst=%x)", (unsigned int) dst->drawable)); + + pict_format = + _cairo_xlib_display_get_xrender_format (display, + antialias == CAIRO_ANTIALIAS_NONE ? CAIRO_FORMAT_A1 : CAIRO_FORMAT_A8); + + if (strip->num_points > ARRAY_LENGTH (points_stack)) { + points = _cairo_malloc_ab (strip->num_points, sizeof (XPointFixed)); + if (unlikely (points == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + dx = -dst_x << 16; + dy = -dst_y << 16; + for (i = 0; i < strip->num_points; i++) { + cairo_point_t *p = &strip->points[i]; + + points[i].x = _cairo_fixed_to_16_16(p->x) + dx; + points[i].y = _cairo_fixed_to_16_16(p->y) + dy; + } + + src_x += _cairo_fixed_16_16_floor (points[0].x) + dst_x; + src_y += _cairo_fixed_16_16_floor (points[0].y) + dst_y; + + _cairo_xlib_surface_ensure_picture (dst); + _cairo_xlib_surface_set_precision (dst, antialias); + XRenderCompositeTriStrip (dst->dpy, + _render_operator (op), + src->picture, dst->picture, + pict_format, + src_x, src_y, + points, strip->num_points); + + if (points != points_stack) + free (points); + + return CAIRO_STATUS_SUCCESS; +} + +const cairo_compositor_t * +_cairo_xlib_traps_compositor_get (void) +{ + static cairo_atomic_once_t once = CAIRO_ATOMIC_ONCE_INIT; + static cairo_traps_compositor_t compositor; + + if (_cairo_atomic_init_once_enter(&once)) { + _cairo_traps_compositor_init (&compositor, + _cairo_xlib_mask_compositor_get ()); + + compositor.acquire = acquire; + compositor.release = release; + compositor.set_clip_region = set_clip_region; + compositor.pattern_to_surface = _cairo_xlib_source_create_for_pattern; + compositor.draw_image_boxes = draw_image_boxes; + compositor.copy_boxes = copy_boxes; + compositor.fill_boxes = fill_boxes; + compositor.check_composite = check_composite; + compositor.composite = composite; + compositor.lerp = lerp; + //compositor.check_composite_boxes = check_composite_boxes; + compositor.composite_boxes = composite_boxes; + //compositor.check_composite_traps = check_composite_traps; + compositor.composite_traps = composite_traps; + //compositor.check_composite_tristrip = check_composite_tristrip; + compositor.composite_tristrip = composite_tristrip; + compositor.check_composite_glyphs = check_composite_glyphs; + compositor.composite_glyphs = composite_glyphs; + + _cairo_atomic_init_once_leave(&once); + } + + return &compositor.base; +} + +#endif /* !CAIRO_HAS_XLIB_XCB_FUNCTIONS */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib-screen.c b/local/recipes/libs/cairo/source/src/cairo-xlib-screen.c new file mode 100644 index 0000000000..cd8e2a75db --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib-screen.c @@ -0,0 +1,467 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Partially on code from xftdpy.c + * + * Copyright © 2000 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Keith Packard not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Keith Packard makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +#include "cairoint.h" + +#if !CAIRO_HAS_XLIB_XCB_FUNCTIONS + +#include "cairo-xlib-private.h" +#include "cairo-xlib-xrender-private.h" + +#include "cairo-xlib-surface-private.h" +#include "cairo-error-private.h" +#include "cairo-list-inline.h" + +#include "cairo-fontconfig-private.h" + +static int +parse_boolean (const char *v) +{ + char c0, c1; + + c0 = *v; + if (c0 == 't' || c0 == 'T' || c0 == 'y' || c0 == 'Y' || c0 == '1') + return 1; + if (c0 == 'f' || c0 == 'F' || c0 == 'n' || c0 == 'N' || c0 == '0') + return 0; + if (c0 == 'o') + { + c1 = v[1]; + if (c1 == 'n' || c1 == 'N') + return 1; + if (c1 == 'f' || c1 == 'F') + return 0; + } + + return -1; +} + +static cairo_bool_t +get_boolean_default (Display *dpy, + const char *option, + cairo_bool_t *value) +{ + char *v; + int i; + + v = XGetDefault (dpy, "Xft", option); + if (v) { + i = parse_boolean (v); + if (i >= 0) { + *value = i; + return TRUE; + } + } + + return FALSE; +} + +static cairo_bool_t +get_integer_default (Display *dpy, + const char *option, + int *value) +{ + char *v, *e; + + v = XGetDefault (dpy, "Xft", option); + if (v) { +#if CAIRO_HAS_FC_FONT + if (FcNameConstant ((FcChar8 *) v, value)) + return TRUE; +#endif + + *value = strtol (v, &e, 0); + if (e != v) + return TRUE; + } + + return FALSE; +} + +static void +_cairo_xlib_init_screen_font_options (Display *dpy, + cairo_xlib_screen_t *info) +{ + cairo_bool_t xft_hinting; + cairo_bool_t xft_antialias; + int xft_hintstyle; + int xft_rgba; + int xft_lcdfilter; + cairo_antialias_t antialias; + cairo_subpixel_order_t subpixel_order; + cairo_lcd_filter_t lcd_filter; + cairo_hint_style_t hint_style; + + if (!get_boolean_default (dpy, "antialias", &xft_antialias)) + xft_antialias = TRUE; + + if (!get_integer_default (dpy, "lcdfilter", &xft_lcdfilter)) { + /* -1 is an non-existant Fontconfig constant used to differentiate + * the case when no lcdfilter property is available. + */ + xft_lcdfilter = -1; + } + + if (!get_boolean_default (dpy, "hinting", &xft_hinting)) + xft_hinting = TRUE; + + if (!get_integer_default (dpy, "hintstyle", &xft_hintstyle)) + xft_hintstyle = FC_HINT_FULL; + + if (!get_integer_default (dpy, "rgba", &xft_rgba)) + { + cairo_xlib_display_t *display = (cairo_xlib_display_t *) info->device; + + xft_rgba = FC_RGBA_UNKNOWN; + +#if RENDER_MAJOR > 0 || RENDER_MINOR >= 6 + if (display->render_major > 0 || display->render_minor >= 6) { + int render_order = XRenderQuerySubpixelOrder (dpy, + XScreenNumberOfScreen (info->screen)); + + switch (render_order) { + default: + case SubPixelUnknown: + xft_rgba = FC_RGBA_UNKNOWN; + break; + case SubPixelHorizontalRGB: + xft_rgba = FC_RGBA_RGB; + break; + case SubPixelHorizontalBGR: + xft_rgba = FC_RGBA_BGR; + break; + case SubPixelVerticalRGB: + xft_rgba = FC_RGBA_VRGB; + break; + case SubPixelVerticalBGR: + xft_rgba = FC_RGBA_VBGR; + break; + case SubPixelNone: + xft_rgba = FC_RGBA_NONE; + break; + } + } +#endif + } + + if (xft_hinting) { + switch (xft_hintstyle) { + case FC_HINT_NONE: + hint_style = CAIRO_HINT_STYLE_NONE; + break; + case FC_HINT_SLIGHT: + hint_style = CAIRO_HINT_STYLE_SLIGHT; + break; + case FC_HINT_MEDIUM: + hint_style = CAIRO_HINT_STYLE_MEDIUM; + break; + case FC_HINT_FULL: + hint_style = CAIRO_HINT_STYLE_FULL; + break; + default: + hint_style = CAIRO_HINT_STYLE_DEFAULT; + } + } else { + hint_style = CAIRO_HINT_STYLE_NONE; + } + + switch (xft_rgba) { + case FC_RGBA_RGB: + subpixel_order = CAIRO_SUBPIXEL_ORDER_RGB; + break; + case FC_RGBA_BGR: + subpixel_order = CAIRO_SUBPIXEL_ORDER_BGR; + break; + case FC_RGBA_VRGB: + subpixel_order = CAIRO_SUBPIXEL_ORDER_VRGB; + break; + case FC_RGBA_VBGR: + subpixel_order = CAIRO_SUBPIXEL_ORDER_VBGR; + break; + case FC_RGBA_UNKNOWN: + case FC_RGBA_NONE: + default: + subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT; + } + + switch (xft_lcdfilter) { + case FC_LCD_NONE: + lcd_filter = CAIRO_LCD_FILTER_NONE; + break; + case FC_LCD_DEFAULT: + lcd_filter = CAIRO_LCD_FILTER_FIR5; + break; + case FC_LCD_LIGHT: + lcd_filter = CAIRO_LCD_FILTER_FIR3; + break; + case FC_LCD_LEGACY: + lcd_filter = CAIRO_LCD_FILTER_INTRA_PIXEL; + break; + default: + lcd_filter = CAIRO_LCD_FILTER_DEFAULT; + break; + } + + if (xft_antialias) { + if (subpixel_order == CAIRO_SUBPIXEL_ORDER_DEFAULT) + antialias = CAIRO_ANTIALIAS_GRAY; + else + antialias = CAIRO_ANTIALIAS_SUBPIXEL; + } else { + antialias = CAIRO_ANTIALIAS_NONE; + } + + cairo_font_options_set_hint_style (&info->font_options, hint_style); + cairo_font_options_set_antialias (&info->font_options, antialias); + cairo_font_options_set_subpixel_order (&info->font_options, subpixel_order); + _cairo_font_options_set_lcd_filter (&info->font_options, lcd_filter); + cairo_font_options_set_hint_metrics (&info->font_options, CAIRO_HINT_METRICS_ON); +} + +void +_cairo_xlib_screen_destroy (cairo_xlib_display_t *display, + cairo_xlib_screen_t *info) +{ + Display *dpy; + int i; + + dpy = display->display; + + while (! cairo_list_is_empty (&info->surfaces)) { + cairo_xlib_surface_t *surface; + + surface = cairo_list_first_entry (&info->surfaces, + cairo_xlib_surface_t, + link); + cairo_surface_finish (&surface->base); + } + + for (i = 0; i < ARRAY_LENGTH (info->gc); i++) { + if (info->gc_depths[i] != 0) { + XFreeGC (dpy, info->gc[i]); + info->gc_depths[i] = 0; + } + } + + while (! cairo_list_is_empty (&info->visuals)) { + _cairo_xlib_visual_info_destroy (cairo_list_first_entry (&info->visuals, + cairo_xlib_visual_info_t, + link)); + } + + cairo_list_del (&info->link); + + free (info); +} + +cairo_status_t +_cairo_xlib_screen_get (Display *dpy, + Screen *screen, + cairo_xlib_screen_t **out) +{ + cairo_xlib_display_t *display; + cairo_device_t *device; + cairo_xlib_screen_t *info; + cairo_status_t status; + + device = _cairo_xlib_device_create (dpy); + status = device->status; + if (unlikely (status)) + goto CLEANUP_DEVICE; + + status = _cairo_xlib_display_acquire (device, &display); + if (unlikely (status)) + goto CLEANUP_DEVICE; + + info = _cairo_xlib_display_get_screen (display, screen); + if (info != NULL) { + *out = info; + goto CLEANUP_DISPLAY; + } + + info = _cairo_calloc (sizeof (cairo_xlib_screen_t)); + if (unlikely (info == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_DISPLAY; + } + + info->device = device; + info->screen = screen; + info->has_font_options = FALSE; + memset (info->gc_depths, 0, sizeof (info->gc_depths)); + memset (info->gc, 0, sizeof (info->gc)); + + cairo_list_init (&info->surfaces); + cairo_list_init (&info->visuals); + cairo_list_add (&info->link, &display->screens); + + *out = info; + + CLEANUP_DISPLAY: + cairo_device_release (&display->base); + + CLEANUP_DEVICE: + cairo_device_destroy (device); + return status; +} + +GC +_cairo_xlib_screen_get_gc (cairo_xlib_display_t *display, + cairo_xlib_screen_t *info, + int depth, + Drawable drawable) +{ + GC gc = NULL; + int i; + + for (i = 0; i < ARRAY_LENGTH (info->gc); i++) { + if (info->gc_depths[i] == depth) { + info->gc_depths[i] = 0; + gc = info->gc[i]; + break; + } + } + + if (gc == NULL) { + XGCValues gcv; + + gcv.graphics_exposures = False; + gcv.fill_style = FillTiled; + gc = XCreateGC (display->display, + drawable, + GCGraphicsExposures | GCFillStyle, &gcv); + } + + return gc; +} + +void +_cairo_xlib_screen_put_gc (cairo_xlib_display_t *display, + cairo_xlib_screen_t *info, + int depth, + GC gc) +{ + int i; + + for (i = 0; i < ARRAY_LENGTH (info->gc); i++) { + if (info->gc_depths[i] == 0) + break; + } + + if (i == ARRAY_LENGTH (info->gc)) { + /* perform random substitution to ensure fair caching over depths */ + i = rand () % ARRAY_LENGTH (info->gc); + XFreeGC(display->display, info->gc[i]); + } + + info->gc[i] = gc; + info->gc_depths[i] = depth; +} + +cairo_status_t +_cairo_xlib_screen_get_visual_info (cairo_xlib_display_t *display, + cairo_xlib_screen_t *info, + Visual *v, + cairo_xlib_visual_info_t **out) +{ + cairo_xlib_visual_info_t *visual; + cairo_status_t status; + + cairo_list_foreach_entry (visual, + cairo_xlib_visual_info_t, + &info->visuals, + link) + { + if (visual->visualid == v->visualid) { + *out = visual; + return CAIRO_STATUS_SUCCESS; + } + } + + status = _cairo_xlib_visual_info_create (display->display, + XScreenNumberOfScreen (info->screen), + v->visualid, + &visual); + if (unlikely (status)) + return status; + + cairo_list_add (&visual->link, &info->visuals); + *out = visual; + return CAIRO_STATUS_SUCCESS; +} + +cairo_font_options_t * +_cairo_xlib_screen_get_font_options (cairo_xlib_screen_t *info) +{ + if (! info->has_font_options) { + _cairo_font_options_init_default (&info->font_options); + _cairo_font_options_set_round_glyph_positions (&info->font_options, CAIRO_ROUND_GLYPH_POS_ON); + + if (info->screen != NULL) { + cairo_xlib_display_t *display; + + if (! _cairo_xlib_display_acquire (info->device, &display)) { + _cairo_xlib_init_screen_font_options (display->display, + info); + cairo_device_release (&display->base); + } + } + + info->has_font_options = TRUE; + } + + return &info->font_options; +} + +#endif /* !CAIRO_HAS_XLIB_XCB_FUNCTIONS */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib-source.c b/local/recipes/libs/cairo/source/src/cairo-xlib-source.c new file mode 100644 index 0000000000..69416d7d89 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib-source.c @@ -0,0 +1,1171 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Behdad Esfahbod + * Chris Wilson + * Karl Tomlinson , Mozilla Corporation + */ +#include "cairoint.h" + +#if !CAIRO_HAS_XLIB_XCB_FUNCTIONS + +#include "cairo-xlib-private.h" +#include "cairo-xlib-surface-private.h" + +#include "cairo-error-private.h" +#include "cairo-image-surface-inline.h" +#include "cairo-paginated-private.h" +#include "cairo-pattern-inline.h" +#include "cairo-recording-surface-private.h" +#include "cairo-surface-backend-private.h" +#include "cairo-surface-offset-private.h" +#include "cairo-surface-observer-private.h" +#include "cairo-surface-snapshot-inline.h" +#include "cairo-surface-subsurface-inline.h" + +#define PIXMAN_MAX_INT ((pixman_fixed_1 >> 1) - pixman_fixed_e) /* need to ensure deltas also fit */ + +static cairo_xlib_surface_t * +unwrap_source (const cairo_surface_pattern_t *pattern) +{ + cairo_rectangle_int_t limits; + return (cairo_xlib_surface_t *)_cairo_pattern_get_source (pattern, &limits); +} + +static cairo_status_t +_cairo_xlib_source_finish (void *abstract_surface) +{ + cairo_xlib_source_t *source = abstract_surface; + + XRenderFreePicture (source->dpy, source->picture); + if (source->pixmap) + XFreePixmap (source->dpy, source->pixmap); + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_surface_backend_t cairo_xlib_source_backend = { + CAIRO_SURFACE_TYPE_XLIB, + _cairo_xlib_source_finish, + NULL, /* read-only wrapper */ +}; + +static cairo_status_t +_cairo_xlib_proxy_finish (void *abstract_surface) +{ + cairo_xlib_proxy_t *proxy = abstract_surface; + + _cairo_xlib_shm_surface_mark_active (proxy->owner); + XRenderFreePicture (proxy->source.dpy, proxy->source.picture); + if (proxy->source.pixmap) + XFreePixmap (proxy->source.dpy, proxy->source.pixmap); + cairo_surface_destroy (proxy->owner); + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_surface_backend_t cairo_xlib_proxy_backend = { + CAIRO_SURFACE_TYPE_XLIB, + _cairo_xlib_proxy_finish, + NULL, /* read-only wrapper */ +}; + +static cairo_surface_t * +source (cairo_xlib_surface_t *dst, Picture picture, Pixmap pixmap) +{ + cairo_xlib_source_t *source; + + if (picture == None) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + source = _cairo_calloc (sizeof (*source)); + if (unlikely (source == NULL)) { + XRenderFreePicture (dst->display->display, picture); + if (pixmap) + XFreePixmap (dst->display->display, pixmap); + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + _cairo_surface_init (&source->base, + &cairo_xlib_source_backend, + NULL, /* device */ + CAIRO_CONTENT_COLOR_ALPHA, + FALSE); /* is_vector */ + + /* The source exists only within an operation */ + source->picture = picture; + source->pixmap = pixmap; + source->dpy = dst->display->display; + + return &source->base; +} + +static uint32_t +hars_petruska_f54_1_random (void) +{ +#define rol(x,k) ((x << k) | (x >> (32-k))) + static uint32_t x; + return x = (x ^ rol (x, 5) ^ rol (x, 24)) + 0x37798849; +#undef rol +} + +static const XTransform identity = { + { + { 1 << 16, 0x00000, 0x00000 }, + { 0x00000, 1 << 16, 0x00000 }, + { 0x00000, 0x00000, 1 << 16 }, + } +}; + +static cairo_bool_t +picture_set_matrix (cairo_xlib_display_t *display, + Picture picture, + const cairo_matrix_t *matrix, + cairo_filter_t filter, + double xc, + double yc, + int *x_offset, + int *y_offset) +{ + XTransform xtransform; + pixman_transform_t *pixman_transform; + cairo_int_status_t status; + + /* Casting between pixman_transform_t and XTransform is safe because + * they happen to be the exact same type. + */ + pixman_transform = (pixman_transform_t *) &xtransform; + status = _cairo_matrix_to_pixman_matrix_offset (matrix, filter, xc, yc, + pixman_transform, + x_offset, y_offset); + if (status == CAIRO_INT_STATUS_NOTHING_TO_DO) + return TRUE; + if (unlikely (status != CAIRO_INT_STATUS_SUCCESS)) + return FALSE; + + if (memcmp (&xtransform, &identity, sizeof (XTransform)) == 0) + return TRUE; + + /* a late check in case we perturb the matrix too far */ + if (! CAIRO_RENDER_HAS_PICTURE_TRANSFORM (display)) + return FALSE; + + XRenderSetPictureTransform (display->display, picture, &xtransform); + return TRUE; +} + +static cairo_status_t +picture_set_filter (Display *dpy, + Picture picture, + cairo_filter_t filter) +{ + const char *render_filter; + + switch (filter) { + case CAIRO_FILTER_FAST: + render_filter = FilterFast; + break; + case CAIRO_FILTER_GOOD: + render_filter = FilterGood; + break; + case CAIRO_FILTER_BEST: + render_filter = FilterBest; + break; + case CAIRO_FILTER_NEAREST: + render_filter = FilterNearest; + break; + case CAIRO_FILTER_BILINEAR: + render_filter = FilterBilinear; + break; + case CAIRO_FILTER_GAUSSIAN: + /* XXX: The GAUSSIAN value has no implementation in cairo + * whatsoever, so it was really a mistake to have it in the + * API. We could fix this by officially deprecating it, or + * else inventing semantics and providing an actual + * implementation for it. */ + default: + render_filter = FilterBest; + break; + } + + XRenderSetPictureFilter (dpy, picture, (char *) render_filter, NULL, 0); + return CAIRO_STATUS_SUCCESS; +} + +static int +extend_to_repeat (cairo_extend_t extend) +{ + switch (extend) { + default: + ASSERT_NOT_REACHED; + case CAIRO_EXTEND_NONE: + return RepeatNone; + case CAIRO_EXTEND_REPEAT: + return RepeatNormal; + case CAIRO_EXTEND_REFLECT: + return RepeatReflect; + case CAIRO_EXTEND_PAD: + return RepeatPad; + } +} + +static cairo_bool_t +picture_set_properties (cairo_xlib_display_t *display, + Picture picture, + const cairo_pattern_t *pattern, + const cairo_matrix_t *matrix, + const cairo_rectangle_int_t *extents, + int *x_off, int *y_off) +{ + XRenderPictureAttributes pa; + int mask = 0; + + if (! picture_set_matrix (display, picture, matrix, pattern->filter, + extents->x + extents->width / 2, + extents->y + extents->height / 2, + x_off, y_off)) + return FALSE; + + picture_set_filter (display->display, picture, pattern->filter); + + if (pattern->has_component_alpha) { + pa.component_alpha = 1; + mask |= CPComponentAlpha; + } + + if (pattern->extend != CAIRO_EXTEND_NONE) { + pa.repeat = extend_to_repeat (pattern->extend); + mask |= CPRepeat; + } + + if (mask) + XRenderChangePicture (display->display, picture, mask, &pa); + + return TRUE; +} + +static cairo_surface_t * +render_pattern (cairo_xlib_surface_t *dst, + const cairo_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + int *src_x, int *src_y) +{ + Display *dpy = dst->display->display; + cairo_xlib_surface_t *src; + cairo_image_surface_t *image; + cairo_status_t status; + cairo_rectangle_int_t map_extents; + + src = (cairo_xlib_surface_t *) + _cairo_surface_create_scratch (&dst->base, + is_mask ? CAIRO_CONTENT_ALPHA : CAIRO_CONTENT_COLOR_ALPHA, + extents->width, + extents->height, + NULL); + if (src->base.type != CAIRO_SURFACE_TYPE_XLIB) { + cairo_surface_destroy (&src->base); + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + map_extents = *extents; + map_extents.x = map_extents.y = 0; + + image = _cairo_surface_map_to_image (&src->base, &map_extents); + status = _cairo_surface_offset_paint (&image->base, extents->x, extents->y, + CAIRO_OPERATOR_SOURCE, pattern, + NULL); + status = _cairo_surface_unmap_image (&src->base, image); + if (unlikely (status)) { + cairo_surface_destroy (&src->base); + return _cairo_surface_create_in_error (status); + } + + status = _cairo_xlib_surface_put_shm (src); + if (unlikely (status)) { + cairo_surface_destroy (&src->base); + return _cairo_surface_create_in_error (status); + } + + src->picture = XRenderCreatePicture (dpy, + src->drawable, src->xrender_format, + 0, NULL); + + *src_x = -extents->x; + *src_y = -extents->y; + return &src->base; +} + +static cairo_surface_t * +gradient_source (cairo_xlib_surface_t *dst, + const cairo_gradient_pattern_t *gradient, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + int *src_x, int *src_y) +{ + cairo_xlib_display_t *display = dst->display; + cairo_matrix_t matrix = gradient->base.matrix; + char buf[CAIRO_STACK_BUFFER_SIZE]; + cairo_circle_double_t extremes[2]; + XFixed *stops; + XRenderColor *colors; + Picture picture; + unsigned int i, n_stops; + + /* The RENDER specification says that the inner circle has + * to be completely contained inside the outer one. */ + if (gradient->base.type == CAIRO_PATTERN_TYPE_RADIAL && + ! _cairo_radial_pattern_focus_is_inside ((cairo_radial_pattern_t *) gradient)) + return render_pattern (dst, &gradient->base, is_mask, extents, src_x, src_y); + + assert (gradient->n_stops > 0); + n_stops = MAX (gradient->n_stops, 2); + + if (n_stops < sizeof (buf) / (sizeof (XFixed) + sizeof (XRenderColor))) + { + stops = (XFixed *) buf; + } + else + { + stops = + _cairo_malloc_ab (n_stops, + sizeof (XFixed) + sizeof (XRenderColor)); + if (unlikely (stops == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + colors = (XRenderColor *) (stops + n_stops); + for (i = 0; i < gradient->n_stops; i++) { + stops[i] = + _cairo_fixed_16_16_from_double (gradient->stops[i].offset); + + colors[i].red = gradient->stops[i].color.red_short; + colors[i].green = gradient->stops[i].color.green_short; + colors[i].blue = gradient->stops[i].color.blue_short; + colors[i].alpha = gradient->stops[i].color.alpha_short; + } + + /* RENDER does not support gradients with less than 2 + * stops. If a gradient has only a single stop, duplicate + * it to make RENDER happy. */ + if (gradient->n_stops == 1) { + stops[1] = + _cairo_fixed_16_16_from_double (gradient->stops[0].offset); + + colors[1].red = gradient->stops[0].color.red_short; + colors[1].green = gradient->stops[0].color.green_short; + colors[1].blue = gradient->stops[0].color.blue_short; + colors[1].alpha = gradient->stops[0].color.alpha_short; + } + +#if 0 + /* For some weird reason the X server is sometimes getting + * CreateGradient requests with bad length. So far I've only seen + * XRenderCreateLinearGradient request with 4 stops sometime end up + * with length field matching 0 stops at the server side. I've + * looked at the libXrender code and I can't see anything that + * could cause this behavior. However, for some reason having a + * XSync call here seems to avoid the issue so I'll keep it here + * until it's solved. + */ + XSync (display->display, False); +#endif + + _cairo_gradient_pattern_fit_to_range (gradient, PIXMAN_MAX_INT >> 1, &matrix, extremes); + + if (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR) { + XLinearGradient grad; + + grad.p1.x = _cairo_fixed_16_16_from_double (extremes[0].center.x); + grad.p1.y = _cairo_fixed_16_16_from_double (extremes[0].center.y); + grad.p2.x = _cairo_fixed_16_16_from_double (extremes[1].center.x); + grad.p2.y = _cairo_fixed_16_16_from_double (extremes[1].center.y); + + picture = XRenderCreateLinearGradient (display->display, &grad, + stops, colors, + n_stops); + } else { + XRadialGradient grad; + + grad.inner.x = _cairo_fixed_16_16_from_double (extremes[0].center.x); + grad.inner.y = _cairo_fixed_16_16_from_double (extremes[0].center.y); + grad.inner.radius = _cairo_fixed_16_16_from_double (extremes[0].radius); + grad.outer.x = _cairo_fixed_16_16_from_double (extremes[1].center.x); + grad.outer.y = _cairo_fixed_16_16_from_double (extremes[1].center.y); + grad.outer.radius = _cairo_fixed_16_16_from_double (extremes[1].radius); + + picture = XRenderCreateRadialGradient (display->display, &grad, + stops, colors, + n_stops); + } + + if (stops != (XFixed *) buf) + free (stops); + + *src_x = *src_y = 0; + if (! picture_set_properties (display, picture, + &gradient->base, &gradient->base.matrix, + extents, + src_x, src_y)) { + XRenderFreePicture (display->display, picture); + return render_pattern (dst, &gradient->base, is_mask, extents, src_x, src_y); + } + + return source (dst, picture, None); +} + +static cairo_surface_t * +color_source (cairo_xlib_surface_t *dst, const cairo_color_t *color) +{ + Display *dpy = dst->display->display; + XRenderColor xcolor; + Picture picture; + Pixmap pixmap = None; + + xcolor.red = color->red_short; + xcolor.green = color->green_short; + xcolor.blue = color->blue_short; + xcolor.alpha = color->alpha_short; + + if (CAIRO_RENDER_HAS_GRADIENTS(dst->display)) { + picture = XRenderCreateSolidFill (dpy, &xcolor); + } else { + XRenderPictureAttributes pa; + int mask = 0; + + pa.repeat = RepeatNormal; + mask |= CPRepeat; + + pixmap = XCreatePixmap (dpy, dst->drawable, 1, 1, 32); + picture = XRenderCreatePicture (dpy, pixmap, + _cairo_xlib_display_get_xrender_format (dst->display, CAIRO_FORMAT_ARGB32), + mask, &pa); + + if (CAIRO_RENDER_HAS_FILL_RECTANGLES(dst->display)) { + XRectangle r = { 0, 0, 1, 1}; + XRenderFillRectangles (dpy, PictOpSrc, picture, &xcolor, &r, 1); + } else { + XGCValues gcv; + GC gc; + + gc = _cairo_xlib_screen_get_gc (dst->display, dst->screen, + 32, pixmap); + if (unlikely (gc == NULL)) { + XFreePixmap (dpy, pixmap); + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + gcv.foreground = 0; + gcv.foreground |= (uint32_t)color->alpha_short >> 8 << 24; + gcv.foreground |= color->red_short >> 8 << 16; + gcv.foreground |= color->green_short >> 8 << 8; + gcv.foreground |= color->blue_short >> 8 << 0; + gcv.fill_style = FillSolid; + + XChangeGC (dpy, gc, GCFillStyle | GCForeground, &gcv); + XFillRectangle (dpy, pixmap, gc, 0, 0, 1, 1); + + _cairo_xlib_screen_put_gc (dst->display, dst->screen, 32, gc); + } + } + + return source (dst, picture, pixmap); +} + +static cairo_surface_t * +alpha_source (cairo_xlib_surface_t *dst, uint8_t alpha) +{ + cairo_xlib_display_t *display = dst->display; + + if (display->alpha[alpha] == NULL) { + cairo_color_t color; + + color.red_short = color.green_short = color.blue_short = 0; + color.alpha_short = alpha << 8 | alpha; + + display->alpha[alpha] = color_source (dst, &color); + } + + return cairo_surface_reference (display->alpha[alpha]); +} + +static cairo_surface_t * +white_source (cairo_xlib_surface_t *dst) +{ + cairo_xlib_display_t *display = dst->display; + + if (display->white == NULL) + display->white = color_source (dst, CAIRO_COLOR_WHITE); + + return cairo_surface_reference (display->white); +} + +static cairo_surface_t * +opaque_source (cairo_xlib_surface_t *dst, const cairo_color_t *color) +{ + cairo_xlib_display_t *display = dst->display; + uint32_t pixel = + 0xff000000 | + color->red_short >> 8 << 16 | + color->green_short >> 8 << 8 | + color->blue_short >> 8 << 0; + int i; + + if (display->last_solid_cache[0].color == pixel) + return cairo_surface_reference (display->solid[display->last_solid_cache[0].index]); + + for (i = 0; i < 16; i++) { + if (display->solid_cache[i] == pixel) + goto done; + } + + i = hars_petruska_f54_1_random () % 16; + cairo_surface_destroy (display->solid[i]); + + display->solid[i] = color_source (dst, color); + display->solid_cache[i] = pixel; + +done: + display->last_solid_cache[0].color = pixel; + display->last_solid_cache[0].index = i; + return cairo_surface_reference (display->solid[i]); +} + +static cairo_surface_t * +transparent_source (cairo_xlib_surface_t *dst, const cairo_color_t *color) +{ + cairo_xlib_display_t *display = dst->display; + uint32_t pixel = + (uint32_t)color->alpha_short >> 8 << 24 | + color->red_short >> 8 << 16 | + color->green_short >> 8 << 8 | + color->blue_short >> 8 << 0; + int i; + + if (display->last_solid_cache[1].color == pixel) { + assert (display->solid[display->last_solid_cache[1].index]); + return cairo_surface_reference (display->solid[display->last_solid_cache[1].index]); + } + + for (i = 16; i < 32; i++) { + if (display->solid_cache[i] == pixel) + goto done; + } + + i = 16 + (hars_petruska_f54_1_random () % 16); + cairo_surface_destroy (display->solid[i]); + + display->solid[i] = color_source (dst, color); + display->solid_cache[i] = pixel; + +done: + display->last_solid_cache[1].color = pixel; + display->last_solid_cache[1].index = i; + assert (display->solid[i]); + return cairo_surface_reference (display->solid[i]); +} + +static cairo_surface_t * +solid_source (cairo_xlib_surface_t *dst, + const cairo_color_t *color) +{ + if ((color->red_short | color->green_short | color->blue_short) <= 0xff) + return alpha_source (dst, color->alpha_short >> 8); + + if (CAIRO_ALPHA_SHORT_IS_OPAQUE (color->alpha_short)) { + if (color->red_short >= 0xff00 && color->green_short >= 0xff00 && color->blue_short >= 0xff00) + return white_source (dst); + + return opaque_source (dst, color); + } else + return transparent_source (dst, color); +} + +static cairo_xlib_source_t *init_source (cairo_xlib_surface_t *dst, + cairo_xlib_surface_t *src) +{ + Display *dpy = dst->display->display; + cairo_xlib_source_t *source = &src->embedded_source; + + /* As these are frequent and meant to be fast, we track pictures for + * native surface and minimise update requests. + */ + if (source->picture == None) { + XRenderPictureAttributes pa; + + _cairo_surface_init (&source->base, + &cairo_xlib_source_backend, + NULL, /* device */ + CAIRO_CONTENT_COLOR_ALPHA, + FALSE); /* is_vector */ + + pa.subwindow_mode = IncludeInferiors; + source->picture = XRenderCreatePicture (dpy, + src->drawable, + src->xrender_format, + CPSubwindowMode, &pa); + + source->has_component_alpha = 0; + source->has_matrix = 0; + source->filter = CAIRO_FILTER_NEAREST; + source->extend = CAIRO_EXTEND_NONE; + } + + return (cairo_xlib_source_t *) cairo_surface_reference (&source->base); +} + +static cairo_surface_t * +embedded_source (cairo_xlib_surface_t *dst, + const cairo_surface_pattern_t *pattern, + const cairo_rectangle_int_t *extents, + int *src_x, int *src_y, + cairo_xlib_source_t *source) +{ + Display *dpy = dst->display->display; + cairo_int_status_t status; + XTransform xtransform; + XRenderPictureAttributes pa; + unsigned mask = 0; + + status = _cairo_matrix_to_pixman_matrix_offset (&pattern->base.matrix, + pattern->base.filter, + extents->x + extents->width / 2, + extents->y + extents->height / 2, + (pixman_transform_t *)&xtransform, + src_x, src_y); + + if (status == CAIRO_INT_STATUS_NOTHING_TO_DO) { + if (source->has_matrix) { + source->has_matrix = 0; + memcpy (&xtransform, &identity, sizeof (identity)); + status = CAIRO_INT_STATUS_SUCCESS; + } + } else + source->has_matrix = 1; + if (status == CAIRO_INT_STATUS_SUCCESS) + XRenderSetPictureTransform (dpy, source->picture, &xtransform); + + if (source->filter != pattern->base.filter) { + picture_set_filter (dpy, source->picture, pattern->base.filter); + source->filter = pattern->base.filter; + } + + if (source->has_component_alpha != pattern->base.has_component_alpha) { + pa.component_alpha = pattern->base.has_component_alpha; + mask |= CPComponentAlpha; + source->has_component_alpha = pattern->base.has_component_alpha; + } + + if (source->extend != pattern->base.extend) { + pa.repeat = extend_to_repeat (pattern->base.extend); + mask |= CPRepeat; + source->extend = pattern->base.extend; + } + + if (mask) + XRenderChangePicture (dpy, source->picture, mask, &pa); + + return &source->base; +} + +static cairo_surface_t * +subsurface_source (cairo_xlib_surface_t *dst, + const cairo_surface_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *src_x, int *src_y) +{ + cairo_surface_subsurface_t *sub; + cairo_xlib_surface_t *src; + cairo_xlib_source_t *source; + Display *dpy = dst->display->display; + cairo_int_status_t status; + cairo_surface_pattern_t local_pattern; + XTransform xtransform; + XRenderPictureAttributes pa; + unsigned mask = 0; + + sub = (cairo_surface_subsurface_t *) pattern->surface; + + if (sample->x >= 0 && sample->y >= 0 && + sample->x + sample->width <= sub->extents.width && + sample->y + sample->height <= sub->extents.height) + { + src = (cairo_xlib_surface_t *) sub->target; + status = _cairo_surface_flush (&src->base, 0); + if (unlikely (status)) + return _cairo_surface_create_in_error (status); + + if (pattern->base.filter == CAIRO_FILTER_NEAREST && + _cairo_matrix_is_translation (&pattern->base.matrix)) + { + *src_x += pattern->base.matrix.x0 + sub->extents.x; + *src_y += pattern->base.matrix.y0 + sub->extents.y; + + _cairo_xlib_surface_ensure_picture (src); + return cairo_surface_reference (&src->base); + } + else + { + cairo_surface_pattern_t local_pattern = *pattern; + local_pattern.base.matrix.x0 += sub->extents.x; + local_pattern.base.matrix.y0 += sub->extents.y; + local_pattern.base.extend = CAIRO_EXTEND_NONE; + return embedded_source (dst, &local_pattern, extents, + src_x, src_y, init_source (dst, src)); + } + } + + if (sub->snapshot && sub->snapshot->type == CAIRO_SURFACE_TYPE_XLIB) { + src = (cairo_xlib_surface_t *) cairo_surface_reference (sub->snapshot); + source = &src->embedded_source; + } else { + src = (cairo_xlib_surface_t *) + _cairo_surface_create_scratch (&dst->base, + sub->base.content, + sub->extents.width, + sub->extents.height, + NULL); + if (src->base.type != CAIRO_SURFACE_TYPE_XLIB) { + cairo_surface_destroy (&src->base); + return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); + } + + _cairo_pattern_init_for_surface (&local_pattern, sub->target); + cairo_matrix_init_translate (&local_pattern.base.matrix, + sub->extents.x, sub->extents.y); + local_pattern.base.filter = CAIRO_FILTER_NEAREST; + status = _cairo_surface_paint (&src->base, + CAIRO_OPERATOR_SOURCE, + &local_pattern.base, + NULL); + _cairo_pattern_fini (&local_pattern.base); + + if (unlikely (status)) { + cairo_surface_destroy (&src->base); + return _cairo_surface_create_in_error (status); + } + + _cairo_xlib_surface_ensure_picture (src); + _cairo_surface_subsurface_set_snapshot (&sub->base, &src->base); + + source = &src->embedded_source; + source->has_component_alpha = 0; + source->has_matrix = 0; + source->filter = CAIRO_FILTER_NEAREST; + source->extend = CAIRO_EXTEND_NONE; + } + + status = _cairo_matrix_to_pixman_matrix_offset (&pattern->base.matrix, + pattern->base.filter, + extents->x + extents->width / 2, + extents->y + extents->height / 2, + (pixman_transform_t *)&xtransform, + src_x, src_y); + if (status == CAIRO_INT_STATUS_NOTHING_TO_DO) { + if (source->has_matrix) { + source->has_matrix = 0; + memcpy (&xtransform, &identity, sizeof (identity)); + status = CAIRO_INT_STATUS_SUCCESS; + } + } else + source->has_matrix = 1; + if (status == CAIRO_INT_STATUS_SUCCESS) + XRenderSetPictureTransform (dpy, src->picture, &xtransform); + + if (source->filter != pattern->base.filter) { + picture_set_filter (dpy, src->picture, pattern->base.filter); + source->filter = pattern->base.filter; + } + + if (source->has_component_alpha != pattern->base.has_component_alpha) { + pa.component_alpha = pattern->base.has_component_alpha; + mask |= CPComponentAlpha; + source->has_component_alpha = pattern->base.has_component_alpha; + } + + if (source->extend != pattern->base.extend) { + pa.repeat = extend_to_repeat (pattern->base.extend); + mask |= CPRepeat; + source->extend = pattern->base.extend; + } + + if (mask) + XRenderChangePicture (dpy, src->picture, mask, &pa); + + return &src->base; +} + +static cairo_surface_t * +native_source (cairo_xlib_surface_t *dst, + const cairo_surface_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *src_x, int *src_y) +{ + cairo_xlib_surface_t *src; + cairo_int_status_t status; + + if (_cairo_surface_is_subsurface (pattern->surface)) + return subsurface_source (dst, pattern, is_mask, + extents, sample, + src_x, src_y); + + src = unwrap_source (pattern); + status = _cairo_surface_flush (&src->base, 0); + if (unlikely (status)) + return _cairo_surface_create_in_error (status); + + if (pattern->base.filter == CAIRO_FILTER_NEAREST && + sample->x >= 0 && sample->y >= 0 && + sample->x + sample->width <= src->width && + sample->y + sample->height <= src->height && + _cairo_matrix_is_translation (&pattern->base.matrix)) + { + *src_x += pattern->base.matrix.x0; + *src_y += pattern->base.matrix.y0; + _cairo_xlib_surface_ensure_picture (src); + return cairo_surface_reference (&src->base); + } + + return embedded_source (dst, pattern, extents, src_x, src_y, + init_source (dst, src)); +} + +static cairo_surface_t * +recording_pattern_get_surface (const cairo_pattern_t *pattern) +{ + cairo_surface_t *surface; + + surface = ((const cairo_surface_pattern_t *) pattern)->surface; + + if (_cairo_surface_is_paginated (surface)) + return cairo_surface_reference (_cairo_paginated_surface_get_recording (surface)); + + if (_cairo_surface_is_snapshot (surface)) + return _cairo_surface_snapshot_get_target (surface); + + return cairo_surface_reference (surface); +} + +static cairo_surface_t * +record_source (cairo_xlib_surface_t *dst, + const cairo_surface_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *src_x, int *src_y) +{ + cairo_xlib_surface_t *src; + cairo_surface_t *recording; + cairo_matrix_t matrix, m; + cairo_status_t status; + cairo_rectangle_int_t upload, limit; + + upload = *sample; + if (_cairo_surface_get_extents (pattern->surface, &limit) && + ! _cairo_rectangle_intersect (&upload, &limit)) + { + if (pattern->base.extend == CAIRO_EXTEND_NONE) + return alpha_source (dst, 0); + + upload = limit; + } + + src = (cairo_xlib_surface_t *) + _cairo_surface_create_scratch (&dst->base, + pattern->surface->content, + upload.width, + upload.height, + NULL); + if (src->base.type != CAIRO_SURFACE_TYPE_XLIB) { + cairo_surface_destroy (&src->base); + return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); + } + + cairo_matrix_init_translate (&matrix, upload.x, upload.y); + recording = recording_pattern_get_surface (&pattern->base), + status = _cairo_recording_surface_replay_with_clip (recording, + &matrix, &src->base, + NULL); + cairo_surface_destroy (recording); + if (unlikely (status)) { + cairo_surface_destroy (&src->base); + return _cairo_surface_create_in_error (status); + } + + matrix = pattern->base.matrix; + if (upload.x | upload.y) { + cairo_matrix_init_translate (&m, -upload.x, -upload.y); + cairo_matrix_multiply (&matrix, &matrix, &m); + } + + _cairo_xlib_surface_ensure_picture (src); + if (! picture_set_properties (src->display, src->picture, + &pattern->base, &matrix, extents, + src_x, src_y)) + { + cairo_surface_destroy (&src->base); + return render_pattern (dst, &pattern->base, is_mask, + extents, src_x, src_y); + } + + return &src->base; +} + +static cairo_surface_t * +surface_source (cairo_xlib_surface_t *dst, + const cairo_surface_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *src_x, int *src_y) +{ + cairo_surface_t *src; + cairo_xlib_surface_t *xsrc; + cairo_surface_pattern_t local_pattern; + cairo_status_t status; + cairo_rectangle_int_t upload, limit; + + src = pattern->surface; + if (src->type == CAIRO_SURFACE_TYPE_IMAGE && + src->device == dst->base.device && + _cairo_xlib_shm_surface_get_pixmap (src)) { + cairo_xlib_proxy_t *proxy; + + proxy = _cairo_calloc (sizeof(*proxy)); + if (unlikely (proxy == NULL)) + return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_surface_init (&proxy->source.base, + &cairo_xlib_proxy_backend, + dst->base.device, + src->content, + src->is_vector); + + proxy->source.dpy = dst->display->display; + proxy->source.picture = XRenderCreatePicture (proxy->source.dpy, + _cairo_xlib_shm_surface_get_pixmap (src), + _cairo_xlib_shm_surface_get_xrender_format (src), + 0, NULL); + proxy->source.pixmap = None; + + proxy->source.has_component_alpha = 0; + proxy->source.has_matrix = 0; + proxy->source.filter = CAIRO_FILTER_NEAREST; + proxy->source.extend = CAIRO_EXTEND_NONE; + proxy->owner = cairo_surface_reference (src); + + return embedded_source (dst, pattern, extents, src_x, src_y, + &proxy->source); + } + + upload = *sample; + if (_cairo_surface_get_extents (pattern->surface, &limit)) { + if (pattern->base.extend == CAIRO_EXTEND_NONE) { + if (! _cairo_rectangle_intersect (&upload, &limit)) + return alpha_source (dst, 0); + } else if (pattern->base.extend == CAIRO_EXTEND_PAD) { + if (! _cairo_rectangle_intersect (&upload, &limit)) + upload = limit; + } else { + if (upload.x < limit.x || + upload.x + upload.width > limit.x + limit.width || + upload.y < limit.y || + upload.y + upload.height > limit.y + limit.height) + { + upload = limit; + } + } + } + + xsrc = (cairo_xlib_surface_t *) + _cairo_surface_create_scratch (&dst->base, + src->content, + upload.width, + upload.height, + NULL); + if (xsrc->base.type != CAIRO_SURFACE_TYPE_XLIB) { + cairo_surface_destroy (src); + cairo_surface_destroy (&xsrc->base); + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + if (_cairo_surface_is_image (src)) { + status = _cairo_xlib_surface_draw_image (xsrc, (cairo_image_surface_t *)src, + upload.x, upload.y, + upload.width, upload.height, + 0, 0); + } else { + cairo_image_surface_t *image; + cairo_rectangle_int_t map_extents = { 0,0, upload.width,upload.height }; + + image = _cairo_surface_map_to_image (&xsrc->base, &map_extents); + + _cairo_pattern_init_for_surface (&local_pattern, pattern->surface); + cairo_matrix_init_translate (&local_pattern.base.matrix, + upload.x, upload.y); + + status = _cairo_surface_paint (&image->base, + CAIRO_OPERATOR_SOURCE, + &local_pattern.base, + NULL); + _cairo_pattern_fini (&local_pattern.base); + + status = _cairo_surface_unmap_image (&xsrc->base, image); + if (unlikely (status)) { + cairo_surface_destroy (&xsrc->base); + return _cairo_surface_create_in_error (status); + } + + status = _cairo_xlib_surface_put_shm (xsrc); + if (unlikely (status)) { + cairo_surface_destroy (&xsrc->base); + return _cairo_surface_create_in_error (status); + } + } + + _cairo_pattern_init_static_copy (&local_pattern.base, &pattern->base); + if (upload.x | upload.y) { + cairo_matrix_t m; + cairo_matrix_init_translate (&m, -upload.x, -upload.y); + cairo_matrix_multiply (&local_pattern.base.matrix, + &local_pattern.base.matrix, + &m); + } + + *src_x = *src_y = 0; + _cairo_xlib_surface_ensure_picture (xsrc); + if (! picture_set_properties (xsrc->display, + xsrc->picture, + &local_pattern.base, + &local_pattern.base.matrix, + extents, + src_x, src_y)) + { + cairo_surface_destroy (&xsrc->base); + return render_pattern (dst, &pattern->base, + is_mask, extents, + src_x, src_y); + } + + return &xsrc->base; +} + +static cairo_bool_t +pattern_is_supported (cairo_xlib_display_t *display, + const cairo_pattern_t *pattern) +{ + if (pattern->type == CAIRO_PATTERN_TYPE_MESH) + return FALSE; + + if (display->buggy_pad_reflect) { + if (pattern->extend == CAIRO_EXTEND_REPEAT || pattern->extend == CAIRO_EXTEND_PAD) + return FALSE; + } + + if (display->buggy_gradients) { + if (pattern->type == CAIRO_PATTERN_TYPE_LINEAR || pattern->type == CAIRO_PATTERN_TYPE_RADIAL) + return FALSE; + } + + switch (pattern->filter) { + case CAIRO_FILTER_FAST: + case CAIRO_FILTER_NEAREST: + return CAIRO_RENDER_HAS_PICTURE_TRANSFORM (display) || + _cairo_matrix_is_integer_translation (&pattern->matrix, NULL, NULL); + case CAIRO_FILTER_GOOD: + return CAIRO_RENDER_HAS_FILTER_GOOD (display); + case CAIRO_FILTER_BEST: + return CAIRO_RENDER_HAS_FILTER_BEST (display); + case CAIRO_FILTER_BILINEAR: + case CAIRO_FILTER_GAUSSIAN: + default: + return CAIRO_RENDER_HAS_FILTERS (display); + } +} + +cairo_surface_t * +_cairo_xlib_source_create_for_pattern (cairo_surface_t *_dst, + const cairo_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *src_x, int *src_y) +{ + cairo_xlib_surface_t *dst = (cairo_xlib_surface_t *)_dst; + + *src_x = *src_y = 0; + + if (pattern == NULL || pattern->type == CAIRO_PATTERN_TYPE_SOLID) { + if (pattern == NULL) + pattern = &_cairo_pattern_white.base; + + return solid_source (dst, &((cairo_solid_pattern_t *)pattern)->color); + } + + if (pattern_is_supported (dst->display, pattern)) { + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *spattern = (cairo_surface_pattern_t *)pattern; + if (spattern->surface->type == CAIRO_SURFACE_TYPE_XLIB && + _cairo_xlib_surface_same_screen (dst, + unwrap_source (spattern))) + return native_source (dst, spattern, is_mask, + extents, sample, + src_x, src_y); + + if (spattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + return record_source (dst, spattern, is_mask, + extents, sample, + src_x, src_y); + + return surface_source (dst, spattern, is_mask, + extents, sample, + src_x, src_y); + } + + if (pattern->type == CAIRO_PATTERN_TYPE_LINEAR || + pattern->type == CAIRO_PATTERN_TYPE_RADIAL) + { + cairo_gradient_pattern_t *gpattern = (cairo_gradient_pattern_t *)pattern; + return gradient_source (dst, gpattern, is_mask, extents, src_x, src_y); + } + } + + return render_pattern (dst, pattern, is_mask, extents, src_x, src_y); +} + +#endif /* !CAIRO_HAS_XLIB_XCB_FUNCTIONS */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib-surface-private.h b/local/recipes/libs/cairo/source/src/cairo-xlib-surface-private.h new file mode 100644 index 0000000000..83d9b63cc4 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib-surface-private.h @@ -0,0 +1,44 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + */ + +#ifndef CAIRO_XLIB_SURFACE_PRIVATE_H +#define CAIRO_XLIB_SURFACE_PRIVATE_H + +#include "cairo-xlib-xrender-private.h" +#include "cairo-xlib.h" +#include "cairo-xlib-private.h" + +#include "cairo-surface-private.h" +#include "cairo-surface-backend-private.h" + + +#endif /* CAIRO_XLIB_SURFACE_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib-surface-shm.c b/local/recipes/libs/cairo/source/src/cairo-xlib-surface-shm.c new file mode 100644 index 0000000000..85a036938a --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib-surface-shm.c @@ -0,0 +1,1466 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2012 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#if !CAIRO_HAS_XLIB_XCB_FUNCTIONS + +#include "cairo-xlib-private.h" +#include "cairo-xlib-surface-private.h" + +#if !HAVE_X11_EXTENSIONS_XSHM_H || !(HAVE_X11_EXTENSIONS_SHMPROTO_H || HAVE_X11_EXTENSIONS_SHMSTR_H) +void _cairo_xlib_display_init_shm (cairo_xlib_display_t *display) +{ + display->shm = NULL; +} + +cairo_surface_t * +_cairo_xlib_surface_get_shm (cairo_xlib_surface_t *surface, + cairo_bool_t overwrite) +{ + return NULL; +} + +cairo_int_status_t +_cairo_xlib_surface_put_shm (cairo_xlib_surface_t *surface) +{ + assert (!surface->fallback); + return CAIRO_INT_STATUS_SUCCESS; +} + +cairo_surface_t * +_cairo_xlib_surface_create_shm (cairo_xlib_surface_t *other, + pixman_format_code_t format, + int width, int height) +{ + return NULL; +} + +cairo_surface_t * +_cairo_xlib_surface_create_shm__image (cairo_xlib_surface_t *surface, + pixman_format_code_t format, + int width, int height) +{ + return NULL; +} + +cairo_surface_t * +_cairo_xlib_surface_create_similar_shm (void *other, + cairo_format_t format, + int width, int height) +{ + return cairo_image_surface_create (format, width, height); +} + +void +_cairo_xlib_shm_surface_mark_active (cairo_surface_t *_shm) +{ + ASSERT_NOT_REACHED; +} + +void +_cairo_xlib_shm_surface_get_ximage (cairo_surface_t *surface, + XImage *ximage) +{ + ASSERT_NOT_REACHED; +} + +void * +_cairo_xlib_shm_surface_get_obdata (cairo_surface_t *surface) +{ + ASSERT_NOT_REACHED; + return NULL; +} + +Pixmap +_cairo_xlib_shm_surface_get_pixmap (cairo_surface_t *surface) +{ + ASSERT_NOT_REACHED; + return 0; +} + +XRenderPictFormat * +_cairo_xlib_shm_surface_get_xrender_format (cairo_surface_t *surface) +{ + ASSERT_NOT_REACHED; + return NULL; +} + +cairo_bool_t +_cairo_xlib_shm_surface_is_active (cairo_surface_t *surface) +{ + ASSERT_NOT_REACHED; + return FALSE; +} + +cairo_bool_t +_cairo_xlib_shm_surface_is_idle (cairo_surface_t *surface) +{ + ASSERT_NOT_REACHED; + return TRUE; +} + +void _cairo_xlib_display_fini_shm (cairo_xlib_display_t *display) {} + +#else + +#include "cairo-damage-private.h" +#include "cairo-default-context-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-list-inline.h" +#include "cairo-mempool-private.h" + +#include +#include +#include +#if HAVE_X11_EXTENSIONS_SHMPROTO_H +#include +#elif HAVE_X11_EXTENSIONS_SHMSTR_H +#include +#endif +#include +#include + +#define MIN_PIXMAP_SIZE 4096 + +#define MIN_BITS 8 +#define MIN_SIZE (1<<(MIN_BITS-1)) + +typedef struct _cairo_xlib_shm cairo_xlib_shm_t; +typedef struct _cairo_xlib_shm_info cairo_xlib_shm_info_t; +typedef struct _cairo_xlib_shm_surface cairo_xlib_shm_surface_t; + +struct _cairo_xlib_shm { + cairo_mempool_t mem; + + XShmSegmentInfo shm; + unsigned long attached; + cairo_list_t link; +}; + +struct _cairo_xlib_shm_info { + unsigned long last_request; + void *mem; + size_t size; + cairo_xlib_shm_t *pool; +}; + +struct _cairo_xlib_shm_surface { + cairo_image_surface_t image; + + cairo_list_t link; + cairo_xlib_shm_info_t *info; + Pixmap pixmap; + unsigned long active; + int idle; +}; + +/* the parent is always given by index/2 */ +#define PQ_PARENT_INDEX(i) ((i) >> 1) +#define PQ_FIRST_ENTRY 1 + +/* left and right children are index * 2 and (index * 2) +1 respectively */ +#define PQ_LEFT_CHILD_INDEX(i) ((i) << 1) + +#define PQ_TOP(pq) ((pq)->elements[PQ_FIRST_ENTRY]) + +struct pqueue { + int size, max_size; + cairo_xlib_shm_info_t **elements; +}; + +struct _cairo_xlib_shm_display { + int has_pixmaps; + int opcode; + int event; + + Window window; + unsigned long last_request; + unsigned long last_event; + + cairo_list_t surfaces; + + cairo_list_t pool; + struct pqueue info; +}; + +static inline cairo_bool_t +seqno_passed (unsigned long a, unsigned long b) +{ + return (long)(b - a) >= 0; +} + +static inline cairo_bool_t +seqno_before (unsigned long a, unsigned long b) +{ + return (long)(b - a) > 0; +} + +static inline cairo_bool_t +seqno_after (unsigned long a, unsigned long b) +{ + return (long)(a - b) > 0; +} + +static inline cairo_status_t +_pqueue_init (struct pqueue *pq) +{ + pq->max_size = 32; + pq->size = 0; + + pq->elements = _cairo_malloc_ab (pq->max_size, + sizeof (cairo_xlib_shm_info_t *)); + if (unlikely (pq->elements == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + PQ_TOP(pq) = NULL; + return CAIRO_STATUS_SUCCESS; +} + +static inline void +_pqueue_fini (struct pqueue *pq) +{ + free (pq->elements); +} + +static cairo_status_t +_pqueue_grow (struct pqueue *pq) +{ + cairo_xlib_shm_info_t **new_elements; + + new_elements = _cairo_realloc_ab (pq->elements, + 2 * pq->max_size, + sizeof (cairo_xlib_shm_info_t *)); + if (unlikely (new_elements == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + pq->elements = new_elements; + pq->max_size *= 2; + return CAIRO_STATUS_SUCCESS; +} + +static void +_pqueue_shrink (struct pqueue *pq, int min_size) +{ + cairo_xlib_shm_info_t **new_elements; + + if (min_size > pq->max_size) + return; + + new_elements = _cairo_realloc_ab (pq->elements, + min_size, + sizeof (cairo_xlib_shm_info_t *)); + if (unlikely (new_elements == NULL)) + return; + + pq->elements = new_elements; + pq->max_size = min_size; +} + +static inline cairo_status_t +_pqueue_push (struct pqueue *pq, cairo_xlib_shm_info_t *info) +{ + cairo_xlib_shm_info_t **elements; + int i, parent; + + if (unlikely (pq->size + 1 == pq->max_size)) { + cairo_status_t status; + + status = _pqueue_grow (pq); + if (unlikely (status)) + return status; + } + + elements = pq->elements; + + for (i = ++pq->size; + i != PQ_FIRST_ENTRY && + info->last_request < elements[parent = PQ_PARENT_INDEX (i)]->last_request; + i = parent) + { + elements[i] = elements[parent]; + } + + elements[i] = info; + + return CAIRO_STATUS_SUCCESS; +} + +static inline void +_pqueue_pop (struct pqueue *pq) +{ + cairo_xlib_shm_info_t **elements = pq->elements; + cairo_xlib_shm_info_t *tail; + int child, i; + + tail = elements[pq->size--]; + if (pq->size == 0) { + elements[PQ_FIRST_ENTRY] = NULL; + _pqueue_shrink (pq, 32); + return; + } + + for (i = PQ_FIRST_ENTRY; + (child = PQ_LEFT_CHILD_INDEX (i)) <= pq->size; + i = child) + { + if (child != pq->size && + elements[child+1]->last_request < elements[child]->last_request) + { + child++; + } + + if (elements[child]->last_request >= tail->last_request) + break; + + elements[i] = elements[child]; + } + elements[i] = tail; +} + +static cairo_bool_t _x_error_occurred; + +static int +_check_error_handler (Display *display, + XErrorEvent *event) +{ + _x_error_occurred = TRUE; + return False; /* ignored */ +} + +static cairo_bool_t +can_use_shm (Display *dpy, int *has_pixmap) +{ + XShmSegmentInfo shm; + int (*old_handler) (Display *display, XErrorEvent *event); + Status success; + int major, minor; + + if (! XShmQueryExtension (dpy)) + return FALSE; + + XShmQueryVersion (dpy, &major, &minor, has_pixmap); + + shm.shmid = shmget (IPC_PRIVATE, 0x1000, IPC_CREAT | 0600); + if (shm.shmid == -1) + return FALSE; + + shm.readOnly = FALSE; + shm.shmaddr = shmat (shm.shmid, NULL, 0); + if (shm.shmaddr == (char *) -1) { + shmctl (shm.shmid, IPC_RMID, NULL); + return FALSE; + } + + assert (CAIRO_MUTEX_IS_LOCKED (_cairo_xlib_display_mutex)); + _x_error_occurred = FALSE; + + XLockDisplay (dpy); + XSync (dpy, False); + old_handler = XSetErrorHandler (_check_error_handler); + + success = XShmAttach (dpy, &shm); + if (success) + XShmDetach (dpy, &shm); + + XSync (dpy, False); + XSetErrorHandler (old_handler); + XUnlockDisplay (dpy); + + shmctl (shm.shmid, IPC_RMID, NULL); + shmdt (shm.shmaddr); + + return success && ! _x_error_occurred; +} + +static inline Display * +peek_display (cairo_device_t *device) +{ + return ((cairo_xlib_display_t *)device)->display; +} + +static inline unsigned long +peek_processed (cairo_device_t *device) +{ + return LastKnownRequestProcessed (peek_display(device)); +} + +static void +_cairo_xlib_display_shm_pool_destroy (cairo_xlib_display_t *display, + cairo_xlib_shm_t *pool) +{ + shmdt (pool->shm.shmaddr); + if (display->display) /* may be called after CloseDisplay */ + XShmDetach (display->display, &pool->shm); + + _cairo_mempool_fini (&pool->mem); + + cairo_list_del (&pool->link); + free (pool); +} + +static void send_event(cairo_xlib_display_t *display, + cairo_xlib_shm_info_t *info, + unsigned long seqno) +{ + XShmCompletionEvent ev; + + if (! seqno_after (seqno, display->shm->last_event)) + return; + + ev.type = display->shm->event; + ev.send_event = 1; /* XXX or lie? */ + ev.serial = XNextRequest (display->display); + ev.drawable = display->shm->window; + ev.major_code = display->shm->opcode; + ev.minor_code = X_ShmPutImage; + ev.shmseg = info->pool->shm.shmid; + ev.offset = (char *)info->mem - (char *)info->pool->shm.shmaddr; + + XSendEvent (display->display, ev.drawable, False, 0, (XEvent *)&ev); + + display->shm->last_event = ev.serial; +} + +static void _cairo_xlib_display_sync (cairo_xlib_display_t *display) +{ + cairo_xlib_shm_info_t *info; + struct pqueue *pq = &display->shm->info; + + XSync (display->display, False); + + while ((info = PQ_TOP(pq))) { + _cairo_mempool_free (&info->pool->mem, info->mem); + _pqueue_pop (&display->shm->info); + free (info); + } +} + +static void +_cairo_xlib_shm_info_cleanup (cairo_xlib_display_t *display) +{ + cairo_xlib_shm_info_t *info; + Display *dpy = display->display; + struct pqueue *pq = &display->shm->info; + unsigned long processed; + + if (PQ_TOP(pq) == NULL) + return; + + XEventsQueued (dpy, QueuedAfterReading); + processed = LastKnownRequestProcessed (dpy); + + info = PQ_TOP(pq); + do { + if (! seqno_passed (info->last_request, processed)) { + send_event (display, info, display->shm->last_request); + return; + } + + _cairo_mempool_free (&info->pool->mem, info->mem); + _pqueue_pop (&display->shm->info); + free (info); + } while ((info = PQ_TOP(pq))); +} + +static cairo_xlib_shm_t * +_cairo_xlib_shm_info_find (cairo_xlib_display_t *display, size_t size, + void **ptr, unsigned long *last_request) +{ + cairo_xlib_shm_info_t *info; + struct pqueue *pq = &display->shm->info; + + if (PQ_TOP(pq) == NULL) + return NULL; + + info = PQ_TOP(pq); + do { + cairo_xlib_shm_t *pool = info->pool; + + *last_request = info->last_request; + + _pqueue_pop (&display->shm->info); + _cairo_mempool_free (&pool->mem, info->mem); + free (info); + + if (pool->mem.free_bytes >= size) { + void *mem = _cairo_mempool_alloc (&pool->mem, size); + if (mem != NULL) { + *ptr = mem; + return pool; + } + } + } while ((info = PQ_TOP(pq))); + + return NULL; +} + +static cairo_xlib_shm_t * +_cairo_xlib_shm_pool_find (cairo_xlib_display_t *display, + size_t size, + void **ptr) +{ + cairo_xlib_shm_t *pool; + + cairo_list_foreach_entry (pool, cairo_xlib_shm_t, &display->shm->pool, link) { + if (pool->mem.free_bytes >= size) { + void *mem = _cairo_mempool_alloc (&pool->mem, size); + if (mem != NULL) { + *ptr = mem; + return pool; + } + } + } + + return NULL; +} + +static void +_cairo_xlib_shm_pool_cleanup (cairo_xlib_display_t *display) +{ + cairo_xlib_shm_t *pool, *next; + unsigned long processed; + + processed = LastKnownRequestProcessed (display->display); + + cairo_list_foreach_entry_safe (pool, next, cairo_xlib_shm_t, + &display->shm->pool, link) { + if (! seqno_passed (pool->attached, processed)) + break; + + if (pool->mem.free_bytes == pool->mem.max_bytes) + _cairo_xlib_display_shm_pool_destroy (display, pool); + } +} + +static cairo_xlib_shm_t * +_cairo_xlib_shm_pool_create(cairo_xlib_display_t *display, + size_t size, void **ptr) +{ + Display *dpy = display->display; + cairo_xlib_shm_t *pool; + size_t bytes, maxbits = 16, minbits = MIN_BITS; + Status success; + + pool = _cairo_calloc (sizeof (cairo_xlib_shm_t)); + if (pool == NULL) + return NULL; + + bytes = 1 << maxbits; + while (bytes <= size) + bytes <<= 1, maxbits++; + bytes <<= 3; + + minbits += (maxbits - 16) / 2; + + pool->shm.shmid = shmget (IPC_PRIVATE, bytes, IPC_CREAT | 0600); + while (pool->shm.shmid == -1 && bytes >= 2*size) { + bytes >>= 1; + pool->shm.shmid = shmget (IPC_PRIVATE, bytes, IPC_CREAT | 0600); + } + if (pool->shm.shmid == -1) + goto cleanup; + + pool->shm.readOnly = FALSE; + pool->shm.shmaddr = shmat (pool->shm.shmid, NULL, 0); + if (pool->shm.shmaddr == (char *) -1) { + shmctl (pool->shm.shmid, IPC_RMID, NULL); + goto cleanup; + } + + pool->attached = XNextRequest (dpy); + success = XShmAttach (dpy, &pool->shm); +#if !IPC_RMID_DEFERRED_RELEASE + XSync (dpy, FALSE); +#endif + shmctl (pool->shm.shmid, IPC_RMID, NULL); + + if (! success) + goto cleanup_shm; + + if (_cairo_mempool_init (&pool->mem, pool->shm.shmaddr, bytes, + minbits, maxbits - minbits + 1)) + goto cleanup_detach; + + cairo_list_add (&pool->link, &display->shm->pool); + + *ptr = _cairo_mempool_alloc (&pool->mem, size); + assert (*ptr != NULL); + return pool; + +cleanup_detach: + XShmDetach (dpy, &pool->shm); +cleanup_shm: + shmdt (pool->shm.shmaddr); +cleanup: + free (pool); + return NULL; +} + +static cairo_xlib_shm_info_t * +_cairo_xlib_shm_info_create (cairo_xlib_display_t *display, + size_t size, cairo_bool_t will_sync) +{ + cairo_xlib_shm_info_t *info; + cairo_xlib_shm_t *pool; + unsigned long last_request = 0; + void *mem = NULL; + + _cairo_xlib_shm_info_cleanup (display); + pool = _cairo_xlib_shm_pool_find (display, size, &mem); + _cairo_xlib_shm_pool_cleanup (display); + + if (pool == NULL && will_sync) + pool = _cairo_xlib_shm_info_find (display, size, &mem, &last_request); + if (pool == NULL) + pool = _cairo_xlib_shm_pool_create (display, size, &mem); + if (pool == NULL) + return NULL; + + assert (mem != NULL); + + info = _cairo_calloc (sizeof (*info)); + if (info == NULL) { + _cairo_mempool_free (&pool->mem, mem); + return NULL; + } + + info->pool = pool; + info->mem = mem; + info->size = size; + info->last_request = last_request; + + return info; +} + +static cairo_status_t +_cairo_xlib_shm_surface_flush (void *abstract_surface, unsigned flags) +{ + cairo_xlib_shm_surface_t *shm = abstract_surface; + cairo_xlib_display_t *display; + Display *dpy; + cairo_status_t status; + + if (shm->active == 0) + return CAIRO_STATUS_SUCCESS; + + if (shm->image.base._finishing) + return CAIRO_STATUS_SUCCESS; + + if (seqno_passed (shm->active, peek_processed (shm->image.base.device))) { + shm->active = 0; + return CAIRO_STATUS_SUCCESS; + } + + status = _cairo_xlib_display_acquire (shm->image.base.device, &display); + if (unlikely (status)) + return status; + + send_event (display, shm->info, shm->active); + + dpy = display->display; + XEventsQueued (dpy, QueuedAfterReading); + while (! seqno_passed (shm->active, LastKnownRequestProcessed (dpy))) { + LockDisplay(dpy); + _XReadEvents(dpy); + UnlockDisplay(dpy); + } + + cairo_device_release (&display->base); + shm->active = 0; + + return CAIRO_STATUS_SUCCESS; +} + +static inline cairo_bool_t +active (cairo_xlib_shm_surface_t *shm, Display *dpy) +{ + return (shm->active && + ! seqno_passed (shm->active, LastKnownRequestProcessed (dpy))); +} + +static cairo_status_t +_cairo_xlib_shm_surface_finish (void *abstract_surface) +{ + cairo_xlib_shm_surface_t *shm = abstract_surface; + cairo_xlib_display_t *display; + cairo_status_t status; + + if (shm->image.base.damage) { + _cairo_damage_destroy (shm->image.base.damage); + shm->image.base.damage = _cairo_damage_create_in_error (CAIRO_STATUS_SURFACE_FINISHED); + } + + status = _cairo_xlib_display_acquire (shm->image.base.device, &display); + if (unlikely (status)) + return status; + + if (shm->pixmap) + XFreePixmap (display->display, shm->pixmap); + + if (active (shm, display->display)) { + shm->info->last_request = shm->active; + _pqueue_push (&display->shm->info, shm->info); + if (seqno_before (display->shm->last_request, shm->active)) + display->shm->last_request = shm->active; + } else { + _cairo_mempool_free (&shm->info->pool->mem, shm->info->mem); + free (shm->info); + + _cairo_xlib_shm_pool_cleanup (display); + } + + cairo_list_del (&shm->link); + + cairo_device_release (&display->base); + return _cairo_image_surface_finish (abstract_surface); +} + +static const cairo_surface_backend_t cairo_xlib_shm_surface_backend = { + CAIRO_SURFACE_TYPE_IMAGE, + _cairo_xlib_shm_surface_finish, + + _cairo_default_context_create, + + _cairo_image_surface_create_similar, + NULL, /* create similar image */ + _cairo_image_surface_map_to_image, + _cairo_image_surface_unmap_image, + + _cairo_image_surface_source, + _cairo_image_surface_acquire_source_image, + _cairo_image_surface_release_source_image, + _cairo_image_surface_snapshot, + + NULL, /* copy_page */ + NULL, /* show_page */ + + _cairo_image_surface_get_extents, + _cairo_image_surface_get_font_options, + + _cairo_xlib_shm_surface_flush, + NULL, + + _cairo_image_surface_paint, + _cairo_image_surface_mask, + _cairo_image_surface_stroke, + _cairo_image_surface_fill, + NULL, /* fill-stroke */ + _cairo_image_surface_glyphs, +}; + +static cairo_bool_t +has_shm (cairo_xlib_surface_t *surface) +{ + cairo_xlib_display_t *display = (cairo_xlib_display_t *)surface->base.device; + return display->shm != NULL; +} + +static int +has_shm_pixmaps (cairo_xlib_surface_t *surface) +{ + cairo_xlib_display_t *display = (cairo_xlib_display_t *)surface->base.device; + if (!display->shm) + return 0; + + return display->shm->has_pixmaps; +} + +static cairo_xlib_shm_surface_t * +_cairo_xlib_shm_surface_create (cairo_xlib_surface_t *other, + pixman_format_code_t format, + int width, int height, + cairo_bool_t will_sync, + int create_pixmap) +{ + cairo_xlib_shm_surface_t *shm; + cairo_xlib_display_t *display; + pixman_image_t *image; + int stride, size; + + if (width > XLIB_COORD_MAX || height > XLIB_COORD_MAX) + return NULL; + + stride = CAIRO_STRIDE_FOR_WIDTH_BPP (width, PIXMAN_FORMAT_BPP(format)); + size = stride * height; + if (size < MIN_SIZE) + return NULL; + + shm = _cairo_calloc (sizeof (*shm)); + if (unlikely (shm == NULL)) + return (cairo_xlib_shm_surface_t *)_cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_surface_init (&shm->image.base, + &cairo_xlib_shm_surface_backend, + other->base.device, + _cairo_content_from_pixman_format (format), + FALSE); /* is_vector */ + + if (_cairo_xlib_display_acquire (other->base.device, &display)) + goto cleanup_shm; + + shm->info = _cairo_xlib_shm_info_create (display, size, will_sync); + if (shm->info == NULL) + goto cleanup_display; + + image = pixman_image_create_bits (format, width, height, + (uint32_t *) shm->info->mem, stride); + if (image == NULL) + goto cleanup_info; + + _cairo_image_surface_init (&shm->image, image, format); + + shm->pixmap = 0; + if (create_pixmap && size >= create_pixmap) { + shm->pixmap = XShmCreatePixmap (display->display, + other->drawable, + shm->info->mem, + &shm->info->pool->shm, + shm->image.width, + shm->image.height, + shm->image.depth); + } + shm->active = shm->info->last_request; + shm->idle = -5; + + assert (shm->active == 0 || will_sync); + + cairo_list_add (&shm->link, &display->shm->surfaces); + + cairo_device_release (&display->base); + + return shm; + +cleanup_info: + _cairo_mempool_free (&shm->info->pool->mem, shm->info->mem); + free(shm->info); +cleanup_display: + cairo_device_release (&display->base); +cleanup_shm: + free (shm); + return NULL; +} + +static void +_cairo_xlib_surface_update_shm (cairo_xlib_surface_t *surface) +{ + cairo_xlib_shm_surface_t *shm = (cairo_xlib_shm_surface_t *)surface->shm; + cairo_xlib_display_t *display; + cairo_damage_t *damage; + GC gc; + + damage = _cairo_damage_reduce (surface->base.damage); + surface->base.damage = _cairo_damage_create(); + + if (_cairo_xlib_display_acquire (surface->base.device, &display)) + goto cleanup_damage; + + if (_cairo_xlib_surface_get_gc (display, surface, &gc)) + goto cleanup_display; + + if (! surface->owns_pixmap) { + XGCValues gcv; + + gcv.subwindow_mode = IncludeInferiors; + XChangeGC (display->display, gc, GCSubwindowMode, &gcv); + } + + if (damage->region) { + XRectangle stack_rects[CAIRO_STACK_ARRAY_LENGTH (XRectangle)]; + XRectangle *rects = stack_rects; + cairo_rectangle_int_t r; + int n_rects, i; + + n_rects = cairo_region_num_rectangles (damage->region); + if (n_rects == 0) { + } else if (n_rects == 1) { + cairo_region_get_rectangle (damage->region, 0, &r); + XCopyArea (display->display, + surface->drawable, shm->pixmap, gc, + r.x, r.y, + r.width, r.height, + r.x, r.y); + } else { + if (n_rects > ARRAY_LENGTH (stack_rects)) { + rects = _cairo_malloc_ab (n_rects, sizeof (XRectangle)); + if (unlikely (rects == NULL)) { + rects = stack_rects; + n_rects = ARRAY_LENGTH (stack_rects); + } + } + for (i = 0; i < n_rects; i++) { + cairo_region_get_rectangle (damage->region, i, &r); + + rects[i].x = r.x; + rects[i].y = r.y; + rects[i].width = r.width; + rects[i].height = r.height; + } + XSetClipRectangles (display->display, gc, 0, 0, rects, i, YXBanded); + + XCopyArea (display->display, + surface->drawable, shm->pixmap, gc, + 0, 0, + shm->image.width, shm->image.height, + 0, 0); + + if (damage->status == CAIRO_STATUS_SUCCESS && damage->region) + XSetClipMask (display->display, gc, None); + } + } else { + XCopyArea (display->display, + surface->drawable, shm->pixmap, gc, + 0, 0, + shm->image.width, shm->image.height, + 0, 0); + } + + if (! surface->owns_pixmap) { + XGCValues gcv; + + gcv.subwindow_mode = ClipByChildren; + XChangeGC (display->display, gc, GCSubwindowMode, &gcv); + } + + _cairo_xlib_display_sync (display); + shm->active = 0; + shm->idle--; + + _cairo_xlib_surface_put_gc (display, surface, gc); +cleanup_display: + cairo_device_release (&display->base); +cleanup_damage: + _cairo_damage_destroy (damage); +} + +static void +_cairo_xlib_surface_clear_shm (cairo_xlib_surface_t *surface) +{ + cairo_xlib_shm_surface_t *shm = (cairo_xlib_shm_surface_t *)surface->shm; + + assert (shm->active == 0); + + _cairo_damage_destroy (surface->base.damage); + surface->base.damage = _cairo_damage_create(); + + memset (shm->image.data, 0, shm->image.stride * shm->image.height); + shm->image.base.is_clear = TRUE; +} + +static void inc_idle (cairo_surface_t *surface) +{ + cairo_xlib_shm_surface_t *shm = (cairo_xlib_shm_surface_t *)surface; + shm->idle++; +} + +static void dec_idle (cairo_surface_t *surface) +{ + cairo_xlib_shm_surface_t *shm = (cairo_xlib_shm_surface_t *)surface; + shm->idle--; +} + +cairo_surface_t * +_cairo_xlib_surface_get_shm (cairo_xlib_surface_t *surface, + cairo_bool_t overwrite) +{ + if (surface->fallback) { + assert (surface->base.damage); + assert (surface->shm); + assert (surface->shm->damage); + goto done; + } + + if (surface->shm == NULL) { + pixman_format_code_t pixman_format; + cairo_bool_t will_sync; + + if (! has_shm_pixmaps (surface)) + return NULL; + + if ((surface->width | surface->height) < 32) + return NULL; + + pixman_format = _pixman_format_for_xlib_surface (surface); + if (pixman_format == 0) + return NULL; + + will_sync = !surface->base.is_clear && !overwrite; + + surface->shm = + &_cairo_xlib_shm_surface_create (surface, pixman_format, + surface->width, surface->height, + will_sync, 1)->image.base; + if (surface->shm == NULL) + return NULL; + + assert (surface->base.damage == NULL); + if (surface->base.serial || !surface->owns_pixmap) { + cairo_rectangle_int_t rect; + + rect.x = rect.y = 0; + rect.width = surface->width; + rect.height = surface->height; + + surface->base.damage = + _cairo_damage_add_rectangle (NULL, &rect); + } else + surface->base.damage = _cairo_damage_create (); + + surface->shm->damage = _cairo_damage_create (); + } + + if (overwrite) { + _cairo_damage_destroy (surface->base.damage); + surface->base.damage = _cairo_damage_create (); + } + + if (!surface->base.is_clear && surface->base.damage->dirty) + _cairo_xlib_surface_update_shm (surface); + + _cairo_xlib_shm_surface_flush (surface->shm, 1); + + if (surface->base.is_clear && surface->base.damage->dirty) + _cairo_xlib_surface_clear_shm (surface); + +done: + dec_idle(surface->shm); + return surface->shm; +} + +cairo_int_status_t +_cairo_xlib_surface_put_shm (cairo_xlib_surface_t *surface) +{ + cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS; + + if (!surface->fallback) { + if (surface->shm) + inc_idle (surface->shm); + return CAIRO_INT_STATUS_SUCCESS; + } + + if (surface->shm->damage->dirty) { + cairo_xlib_shm_surface_t *shm = (cairo_xlib_shm_surface_t *) surface->shm; + cairo_xlib_display_t *display; + cairo_damage_t *damage; + GC gc; + + status = _cairo_xlib_display_acquire (surface->base.device, &display); + if (unlikely (status)) + return status; + + damage = _cairo_damage_reduce (shm->image.base.damage); + shm->image.base.damage = _cairo_damage_create (); + + TRACE ((stderr, "%s: flushing damage x %d\n", __FUNCTION__, + damage->region ? cairo_region_num_rectangles (damage->region) : 0)); + if (damage->status == CAIRO_STATUS_SUCCESS && damage->region) { + XRectangle stack_rects[CAIRO_STACK_ARRAY_LENGTH (XRectangle)]; + XRectangle *rects = stack_rects; + cairo_rectangle_int_t r; + int n_rects, i; + + n_rects = cairo_region_num_rectangles (damage->region); + if (n_rects == 0) + goto out; + + status = _cairo_xlib_surface_get_gc (display, surface, &gc); + if (unlikely (status)) + goto out; + + if (n_rects == 1) { + cairo_region_get_rectangle (damage->region, 0, &r); + _cairo_xlib_shm_surface_mark_active (surface->shm); + XCopyArea (display->display, + shm->pixmap, surface->drawable, gc, + r.x, r.y, + r.width, r.height, + r.x, r.y); + } else { + if (n_rects > ARRAY_LENGTH (stack_rects)) { + rects = _cairo_malloc_ab (n_rects, sizeof (XRectangle)); + if (unlikely (rects == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + _cairo_xlib_surface_put_gc (display, surface, gc); + goto out; + } + } + for (i = 0; i < n_rects; i++) { + cairo_region_get_rectangle (damage->region, i, &r); + + rects[i].x = r.x; + rects[i].y = r.y; + rects[i].width = r.width; + rects[i].height = r.height; + } + XSetClipRectangles (display->display, gc, 0, 0, rects, i, YXBanded); + + _cairo_xlib_shm_surface_mark_active (surface->shm); + XCopyArea (display->display, + shm->pixmap, surface->drawable, gc, + 0, 0, + shm->image.width, shm->image.height, + 0, 0); + + if (damage->status == CAIRO_STATUS_SUCCESS && damage->region) + XSetClipMask (display->display, gc, None); + } + + _cairo_xlib_surface_put_gc (display, surface, gc); + } + +out: + _cairo_damage_destroy (damage); + cairo_device_release (&display->base); + } + + return status; +} + +cairo_surface_t * +_cairo_xlib_surface_create_shm (cairo_xlib_surface_t *other, + pixman_format_code_t format, + int width, int height) +{ + cairo_surface_t *surface; + + surface = NULL; + if (has_shm (other)) + surface = &_cairo_xlib_shm_surface_create (other, format, width, height, + FALSE, has_shm_pixmaps (other))->image.base; + + return surface; +} + +cairo_surface_t * +_cairo_xlib_surface_create_shm__image (cairo_xlib_surface_t *surface, + pixman_format_code_t format, + int width, int height) +{ + if (! has_shm(surface)) + return NULL; + + return &_cairo_xlib_shm_surface_create (surface, format, width, height, + FALSE, 0)->image.base; +} + +cairo_surface_t * +_cairo_xlib_surface_create_similar_shm (void *other, + cairo_format_t format, + int width, int height) +{ + cairo_surface_t *surface; + + surface = _cairo_xlib_surface_create_shm (other, + _cairo_format_to_pixman_format_code (format), + width, height); + if (surface) { + if (! surface->is_clear) { + cairo_xlib_shm_surface_t *shm = (cairo_xlib_shm_surface_t *) surface; + assert (shm->active == 0); + memset (shm->image.data, 0, shm->image.stride * shm->image.height); + shm->image.base.is_clear = TRUE; + } + } else + surface = cairo_image_surface_create (format, width, height); + + return surface; +} + +void +_cairo_xlib_shm_surface_mark_active (cairo_surface_t *_shm) +{ + cairo_xlib_shm_surface_t *shm = (cairo_xlib_shm_surface_t *) _shm; + cairo_xlib_display_t *display = (cairo_xlib_display_t *) _shm->device; + + shm->active = XNextRequest (display->display); +} + +void +_cairo_xlib_shm_surface_get_ximage (cairo_surface_t *surface, + XImage *ximage) +{ + cairo_xlib_shm_surface_t *shm = (cairo_xlib_shm_surface_t *) surface; + int native_byte_order = _cairo_is_little_endian () ? LSBFirst : MSBFirst; + cairo_format_masks_t image_masks; + int ret; + + ret = _pixman_format_to_masks (shm->image.pixman_format, &image_masks); + assert (ret); + + ximage->width = shm->image.width; + ximage->height = shm->image.height; + ximage->format = ZPixmap; + ximage->data = (char *) shm->image.data; + ximage->obdata = (char *)&shm->info->pool->shm; + ximage->byte_order = native_byte_order; + ximage->bitmap_unit = 32; /* always for libpixman */ + ximage->bitmap_bit_order = native_byte_order; + ximage->bitmap_pad = 32; /* always for libpixman */ + ximage->depth = shm->image.depth; + ximage->bytes_per_line = shm->image.stride; + ximage->bits_per_pixel = image_masks.bpp; + ximage->red_mask = image_masks.red_mask; + ximage->green_mask = image_masks.green_mask; + ximage->blue_mask = image_masks.blue_mask; + ximage->xoffset = 0; + + ret = XInitImage (ximage); + assert (ret != 0); +} + +void * +_cairo_xlib_shm_surface_get_obdata (cairo_surface_t *surface) +{ + cairo_xlib_display_t *display = (cairo_xlib_display_t *) surface->device; + cairo_xlib_shm_surface_t *shm = (cairo_xlib_shm_surface_t *) surface; + + display->shm->last_event = shm->active = XNextRequest (display->display); + return &shm->info->pool->shm; +} + +Pixmap +_cairo_xlib_shm_surface_get_pixmap (cairo_surface_t *surface) +{ + cairo_xlib_shm_surface_t *shm; + + shm = (cairo_xlib_shm_surface_t *) surface; + return shm->pixmap; +} + +XRenderPictFormat * +_cairo_xlib_shm_surface_get_xrender_format (cairo_surface_t *surface) +{ + cairo_xlib_shm_surface_t *shm; + + shm = (cairo_xlib_shm_surface_t *) surface; + if (shm->image.format != CAIRO_FORMAT_INVALID) + return _cairo_xlib_display_get_xrender_format ((cairo_xlib_display_t *)surface->device, + shm->image.format); + + return _cairo_xlib_display_get_xrender_format_for_pixman((cairo_xlib_display_t *)surface->device, + shm->image.pixman_format); +} + +cairo_bool_t +_cairo_xlib_shm_surface_is_active (cairo_surface_t *surface) +{ + cairo_xlib_shm_surface_t *shm; + + shm = (cairo_xlib_shm_surface_t *) surface; + if (shm->active == 0) + return FALSE; + + if (seqno_passed (shm->active, peek_processed (shm->image.base.device))) { + shm->active = 0; + return FALSE; + } + + return TRUE; +} + +cairo_bool_t +_cairo_xlib_shm_surface_is_idle (cairo_surface_t *surface) +{ + cairo_xlib_shm_surface_t *shm; + + shm = (cairo_xlib_shm_surface_t *) surface; + return shm->idle > 0; +} + +#define XORG_VERSION_ENCODE(major,minor,patch,snap) \ + (((major) * 10000000) + ((minor) * 100000) + ((patch) * 1000) + snap) + +static cairo_bool_t +has_broken_send_shm_event (cairo_xlib_display_t *display, + cairo_xlib_shm_display_t *shm) +{ + Display *dpy = display->display; + int (*old_handler) (Display *display, XErrorEvent *event); + XShmCompletionEvent ev; + XShmSegmentInfo info; + + info.shmid = shmget (IPC_PRIVATE, 0x1000, IPC_CREAT | 0600); + if (info.shmid == -1) + return TRUE; + + info.readOnly = FALSE; + info.shmaddr = shmat (info.shmid, NULL, 0); + if (info.shmaddr == (char *) -1) { + shmctl (info.shmid, IPC_RMID, NULL); + return TRUE; + } + + ev.type = shm->event; + ev.send_event = 1; + ev.serial = 1; + ev.drawable = shm->window; + ev.major_code = shm->opcode; + ev.minor_code = X_ShmPutImage; + + ev.shmseg = info.shmid; + ev.offset = 0; + + assert (CAIRO_MUTEX_IS_LOCKED (_cairo_xlib_display_mutex)); + _x_error_occurred = FALSE; + + XLockDisplay (dpy); + XSync (dpy, False); + old_handler = XSetErrorHandler (_check_error_handler); + + XShmAttach (dpy, &info); + XSendEvent (dpy, ev.drawable, False, 0, (XEvent *)&ev); + XShmDetach (dpy, &info); + + XSync (dpy, False); + XSetErrorHandler (old_handler); + XUnlockDisplay (dpy); + + shmctl (info.shmid, IPC_RMID, NULL); + shmdt (info.shmaddr); + + return _x_error_occurred; +} + +static cairo_bool_t +xorg_has_buggy_send_shm_completion_event(cairo_xlib_display_t *display, + cairo_xlib_shm_display_t *shm) +{ + Display *dpy = display->display; + + /* As libXext sets the SEND_EVENT bit in the ShmCompletionEvent, + * the Xserver may crash if it does not take care when processing + * the event type. For instance versions of Xorg prior to 1.11.1 + * exhibited this bug, and was fixed by: + * + * commit 2d2dce558d24eeea0eb011ec9ebaa6c5c2273c39 + * Author: Sam Spilsbury + * Date: Wed Sep 14 09:58:34 2011 +0800 + * + * Remove the SendEvent bit (0x80) before doing range checks on event type. + */ + if (_cairo_xlib_vendor_is_xorg (dpy) && + VendorRelease (dpy) < XORG_VERSION_ENCODE(1,11,0,1)) + return TRUE; + + /* For everyone else check that no error is generated */ + return has_broken_send_shm_event (display, shm); +} + +void +_cairo_xlib_display_init_shm (cairo_xlib_display_t *display) +{ + cairo_xlib_shm_display_t *shm; + XSetWindowAttributes attr; + XExtCodes *codes; + int has_pixmap, scr; + + display->shm = NULL; + + if (!can_use_shm (display->display, &has_pixmap)) + return; + + shm = _cairo_calloc (sizeof (*shm)); + if (unlikely (shm == NULL)) + return; + + codes = XInitExtension (display->display, SHMNAME); + if (codes == NULL) { + free (shm); + return; + } + + shm->opcode = codes ->major_opcode; + shm->event = codes->first_event; + + if (unlikely (_pqueue_init (&shm->info))) { + free (shm); + return; + } + + scr = DefaultScreen (display->display); + attr.override_redirect = 1; + shm->window = XCreateWindow (display->display, + DefaultRootWindow (display->display), -1, -1, + 1, 1, 0, + DefaultDepth (display->display, scr), + InputOutput, + DefaultVisual (display->display, scr), + CWOverrideRedirect, &attr); + shm->last_event = 0; + shm->last_request = 0; + + if (xorg_has_buggy_send_shm_completion_event(display, shm)) + has_pixmap = 0; + + shm->has_pixmaps = has_pixmap ? MIN_PIXMAP_SIZE : 0; + cairo_list_init (&shm->pool); + + cairo_list_init (&shm->surfaces); + + display->shm = shm; +} + +void +_cairo_xlib_display_fini_shm (cairo_xlib_display_t *display) +{ + cairo_xlib_shm_display_t *shm = display->shm; + + if (shm == NULL) + return; + + while (!cairo_list_is_empty (&shm->surfaces)) + cairo_surface_finish (&cairo_list_first_entry (&shm->surfaces, + cairo_xlib_shm_surface_t, + link)->image.base); + + _pqueue_fini (&shm->info); + + while (!cairo_list_is_empty (&shm->pool)) { + cairo_xlib_shm_t *pool; + + pool = cairo_list_first_entry (&shm->pool, cairo_xlib_shm_t, link); + _cairo_xlib_display_shm_pool_destroy (display, pool); + } + + if (display->display) + XDestroyWindow (display->display, shm->window); + + free (shm); + display->shm = NULL; +} +#endif +#endif diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib-surface.c b/local/recipes/libs/cairo/source/src/cairo-xlib-surface.c new file mode 100644 index 0000000000..fac2911998 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib-surface.c @@ -0,0 +1,2389 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Behdad Esfahbod + * Chris Wilson + * Karl Tomlinson , Mozilla Corporation + */ + +/* Heed well the words of Owen Taylor: + * "Any patch that works around a render bug, or claims to, without a + * specific reference to the bug filed in bugzilla.freedesktop.org will + * never pass approval." + */ + +#include "cairoint.h" + +/** + * CAIRO_HAS_XLIB_XCB_FUNCTIONS: + * + * Defined if Cairo has support for XCB integration with Xlib. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.10 + **/ + +#if !CAIRO_HAS_XLIB_XCB_FUNCTIONS + +#include "cairo-xlib-private.h" +#include "cairo-xlib-surface-private.h" + +#include "cairo-compositor-private.h" +#include "cairo-clip-private.h" +#include "cairo-damage-private.h" +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-list-inline.h" +#include "cairo-pattern-private.h" +#include "cairo-pixman-private.h" +#include "cairo-region-private.h" +#include "cairo-scaled-font-private.h" +#include "cairo-surface-snapshot-private.h" +#include "cairo-surface-subsurface-private.h" + +#include /* for XDestroyImage */ + +#include +#include +#include + +#define DEBUG 0 + +#if DEBUG +#define UNSUPPORTED(reason) \ + fprintf (stderr, \ + "cairo-xlib: hit unsupported operation %s(), line %d: %s\n", \ + __FUNCTION__, __LINE__, reason), \ + CAIRO_INT_STATUS_UNSUPPORTED +#else +#define UNSUPPORTED(reason) CAIRO_INT_STATUS_UNSUPPORTED +#endif + +#if DEBUG +#include +static void CAIRO_PRINTF_FORMAT (2, 3) +_x_bread_crumb (Display *dpy, + const char *fmt, + ...) +{ + xReq *req; + char buf[2048]; + unsigned int len, len_dwords; + va_list ap; + + va_start (ap, fmt); + len = vsnprintf (buf, sizeof (buf), fmt, ap); + va_end (ap); + + buf[len++] = '\0'; + while (len & 3) + buf[len++] = '\0'; + + LockDisplay (dpy); + GetEmptyReq (NoOperation, req); + + len_dwords = len >> 2; + SetReqLen (req, len_dwords, len_dwords); + Data (dpy, buf, len); + + UnlockDisplay (dpy); + SyncHandle (); +} +#define X_DEBUG(x) _x_bread_crumb x +#else +#define X_DEBUG(x) +#endif + +/** + * SECTION:cairo-xlib + * @Title: XLib Surfaces + * @Short_Description: X Window System rendering using XLib + * @See_Also: #cairo_surface_t + * + * The XLib surface is used to render cairo graphics to X Window System + * windows and pixmaps using the XLib library. + * + * Note that the XLib surface automatically takes advantage of X render extension + * if it is available. + **/ + +/** + * CAIRO_HAS_XLIB_SURFACE: + * + * Defined if the Xlib surface backend is available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.0 + **/ + +/** + * SECTION:cairo-xlib-xrender + * @Title: XLib-XRender Backend + * @Short_Description: X Window System rendering using XLib and the X Render extension + * @See_Also: #cairo_surface_t + * + * The XLib surface is used to render cairo graphics to X Window System + * windows and pixmaps using the XLib and Xrender libraries. + * + * Note that the XLib surface automatically takes advantage of X Render extension + * if it is available. + **/ + +/** + * CAIRO_HAS_XLIB_XRENDER_SURFACE: + * + * Defined if the XLib/XRender surface functions are available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.6 + **/ + +/* Xlib doesn't define a typedef, so define one ourselves */ +typedef int (*cairo_xlib_error_func_t) (Display *display, + XErrorEvent *event); + +static cairo_surface_t * +_cairo_xlib_surface_create_internal (cairo_xlib_screen_t *screen, + Drawable drawable, + Visual *visual, + XRenderPictFormat *xrender_format, + int width, + int height, + int depth); + +static cairo_bool_t +_cairo_surface_is_xlib (cairo_surface_t *surface); + +/* + * Instead of taking two round trips for each blending request, + * assume that if a particular drawable fails GetImage that it will + * fail for a "while"; use temporary pixmaps to avoid the errors + */ + +#define CAIRO_ASSUME_PIXMAP 20 + +static Visual * +_visual_for_xrender_format(Screen *screen, + XRenderPictFormat *xrender_format) +{ + int d, v; + + /* XXX Consider searching through the list of known cairo_visual_t for + * the reverse mapping. + */ + + for (d = 0; d < screen->ndepths; d++) { + Depth *d_info = &screen->depths[d]; + + if (d_info->depth != xrender_format->depth) + continue; + + for (v = 0; v < d_info->nvisuals; v++) { + Visual *visual = &d_info->visuals[v]; + + switch (visual->class) { + case TrueColor: + if (xrender_format->type != PictTypeDirect) + continue; + break; + + case DirectColor: + /* Prefer TrueColor to DirectColor. + * (XRenderFindVisualFormat considers both TrueColor and DirectColor + * Visuals to match the same PictFormat.) + */ + continue; + + case StaticGray: + case GrayScale: + case StaticColor: + case PseudoColor: + if (xrender_format->type != PictTypeIndexed) + continue; + break; + } + + if (xrender_format == + XRenderFindVisualFormat (DisplayOfScreen(screen), visual)) + return visual; + } + } + + return NULL; +} + +static cairo_content_t +_xrender_format_to_content (XRenderPictFormat *xrender_format) +{ + cairo_content_t content; + + /* This only happens when using a non-Render server. Let's punt + * and say there's no alpha here. */ + if (xrender_format == NULL) + return CAIRO_CONTENT_COLOR; + + content = 0; + if (xrender_format->direct.alphaMask) + content |= CAIRO_CONTENT_ALPHA; + if (xrender_format->direct.redMask | + xrender_format->direct.greenMask | + xrender_format->direct.blueMask) + content |= CAIRO_CONTENT_COLOR; + + return content; +} + +static cairo_surface_t * +_cairo_xlib_surface_create_similar (void *abstract_src, + cairo_content_t content, + int width, + int height) +{ + cairo_xlib_surface_t *src = abstract_src; + XRenderPictFormat *xrender_format; + cairo_xlib_surface_t *surface; + cairo_xlib_display_t *display; + Pixmap pix; + + if (width > XLIB_COORD_MAX || height > XLIB_COORD_MAX) + return NULL; + + if (width == 0 || height == 0) + return NULL; + + if (_cairo_xlib_display_acquire (src->base.device, &display)) + return NULL; + + /* If we never found an XRenderFormat or if it isn't compatible + * with the content being requested, then we fallback to just + * constructing a cairo_format_t instead, (which will fairly + * arbitrarily pick a visual/depth for the similar surface. + */ + xrender_format = NULL; + if (src->xrender_format && + _xrender_format_to_content (src->xrender_format) == content) + { + xrender_format = src->xrender_format; + } + if (xrender_format == NULL) { + xrender_format = + _cairo_xlib_display_get_xrender_format (display, + _cairo_format_from_content (content)); + } + if (xrender_format) { + Visual *visual; + + /* We've got a compatible XRenderFormat now, which means the + * similar surface will match the existing surface as closely in + * visual/depth etc. as possible. */ + pix = XCreatePixmap (display->display, src->drawable, + width, height, xrender_format->depth); + + if (xrender_format == src->xrender_format) + visual = src->visual; + else + visual = _visual_for_xrender_format(src->screen->screen, + xrender_format); + + surface = (cairo_xlib_surface_t *) + _cairo_xlib_surface_create_internal (src->screen, pix, visual, + xrender_format, + width, height, + xrender_format->depth); + } + else + { + Screen *screen = src->screen->screen; + int depth; + + /* No compatible XRenderFormat, see if we can make an ordinary pixmap, + * so that we can still accelerate blits with XCopyArea(). */ + if (content != CAIRO_CONTENT_COLOR) { + cairo_device_release (&display->base); + return NULL; + } + + depth = DefaultDepthOfScreen (screen); + + pix = XCreatePixmap (display->display, RootWindowOfScreen (screen), + width <= 0 ? 1 : width, height <= 0 ? 1 : height, + depth); + + surface = (cairo_xlib_surface_t *) + _cairo_xlib_surface_create_internal (src->screen, pix, + DefaultVisualOfScreen (screen), + NULL, + width, height, depth); + } + + if (likely (surface->base.status == CAIRO_STATUS_SUCCESS)) + surface->owns_pixmap = TRUE; + else + XFreePixmap (display->display, pix); + + cairo_device_release (&display->base); + + return &surface->base; +} + +static void +_cairo_xlib_surface_discard_shm (cairo_xlib_surface_t *surface) +{ + if (surface->shm == NULL) + return; + + /* Force the flush for an external surface */ + if (!surface->owns_pixmap) + cairo_surface_flush (surface->shm); + + cairo_surface_finish (surface->shm); + cairo_surface_destroy (surface->shm); + surface->shm = NULL; + + _cairo_damage_destroy (surface->base.damage); + surface->base.damage = NULL; + + surface->fallback = 0; +} + +static cairo_status_t +_cairo_xlib_surface_finish (void *abstract_surface) +{ + cairo_xlib_surface_t *surface = abstract_surface; + cairo_status_t status; + cairo_xlib_display_t *display; + + cairo_list_del (&surface->link); + + status = _cairo_xlib_display_acquire (surface->base.device, &display); + if (unlikely (status)) + return status; + + X_DEBUG ((display->display, "finish (drawable=%x)", (unsigned int) surface->drawable)); + + if (surface->embedded_source.picture) + XRenderFreePicture (display->display, surface->embedded_source.picture); + if (surface->picture) + XRenderFreePicture (display->display, surface->picture); + + _cairo_xlib_surface_discard_shm (surface); + + if (surface->owns_pixmap) + XFreePixmap (display->display, surface->drawable); + + cairo_device_release (&display->base); + + return status; +} + +cairo_status_t +_cairo_xlib_surface_get_gc (cairo_xlib_display_t *display, + cairo_xlib_surface_t *surface, + GC *gc) +{ + *gc = _cairo_xlib_screen_get_gc (display, + surface->screen, + surface->depth, + surface->drawable); + if (unlikely (*gc == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + return CAIRO_STATUS_SUCCESS; +} + +static int +_noop_error_handler (Display *display, + XErrorEvent *event) +{ + return False; /* return value is ignored */ +} + +static void +_swap_ximage_2bytes (XImage *ximage) +{ + int i, j; + char *line = ximage->data; + + for (j = ximage->height; j; j--) { + uint16_t *p = (uint16_t *) line; + for (i = ximage->width; i; i--) { + *p = bswap_16 (*p); + p++; + } + + line += ximage->bytes_per_line; + } +} + +static void +_swap_ximage_3bytes (XImage *ximage) +{ + int i, j; + char *line = ximage->data; + + for (j = ximage->height; j; j--) { + uint8_t *p = (uint8_t *) line; + for (i = ximage->width; i; i--) { + uint8_t tmp; + tmp = p[2]; + p[2] = p[0]; + p[0] = tmp; + p += 3; + } + + line += ximage->bytes_per_line; + } +} + +static void +_swap_ximage_4bytes (XImage *ximage) +{ + int i, j; + char *line = ximage->data; + + for (j = ximage->height; j; j--) { + uint32_t *p = (uint32_t *) line; + for (i = ximage->width; i; i--) { + *p = bswap_32 (*p); + p++; + } + + line += ximage->bytes_per_line; + } +} + +static void +_swap_ximage_nibbles (XImage *ximage) +{ + int i, j; + char *line = ximage->data; + + for (j = ximage->height; j; j--) { + uint8_t *p = (uint8_t *) line; + for (i = (ximage->width + 1) / 2; i; i--) { + *p = ((*p >> 4) & 0xf) | ((*p << 4) & ~0xf); + p++; + } + + line += ximage->bytes_per_line; + } +} + +static void +_swap_ximage_bits (XImage *ximage) +{ + int i, j; + char *line = ximage->data; + int unit = ximage->bitmap_unit; + int line_bytes = ((ximage->width + unit - 1) & ~(unit - 1)) / 8; + + for (j = ximage->height; j; j--) { + char *p = line; + + for (i = line_bytes; i; i--) { + char b = *p; + b = ((b << 1) & 0xaa) | ((b >> 1) & 0x55); + b = ((b << 2) & 0xcc) | ((b >> 2) & 0x33); + b = ((b << 4) & 0xf0) | ((b >> 4) & 0x0f); + *p = b; + + p++; + } + + line += ximage->bytes_per_line; + } +} + +static void +_swap_ximage_to_native (XImage *ximage) +{ + int unit_bytes = 0; + int native_byte_order = _cairo_is_little_endian () ? LSBFirst : MSBFirst; + + if (ximage->bits_per_pixel == 1 && + ximage->bitmap_bit_order != native_byte_order) + { + _swap_ximage_bits (ximage); + if (ximage->bitmap_bit_order == ximage->byte_order) + return; + } + + if (ximage->byte_order == native_byte_order) + return; + + switch (ximage->bits_per_pixel) { + case 1: + unit_bytes = ximage->bitmap_unit / 8; + break; + case 4: + _swap_ximage_nibbles (ximage); + /* fall-through */ + case 8: + case 16: + case 20: + case 24: + case 28: + case 30: + case 32: + unit_bytes = (ximage->bits_per_pixel + 7) / 8; + break; + default: + /* This could be hit on some rare but possible cases. */ + ASSERT_NOT_REACHED; + } + + switch (unit_bytes) { + case 1: + break; + case 2: + _swap_ximage_2bytes (ximage); + break; + case 3: + _swap_ximage_3bytes (ximage); + break; + case 4: + _swap_ximage_4bytes (ximage); + break; + default: + ASSERT_NOT_REACHED; + } +} + + +/* Given a mask, (with a single sequence of contiguous 1 bits), return + * the number of 1 bits in 'width' and the number of 0 bits to its + * right in 'shift'. */ +static void +_characterize_field (uint32_t mask, int *width, int *shift) +{ + *width = _cairo_popcount (mask); + /* The final '& 31' is to force a 0 mask to result in 0 shift. */ + *shift = _cairo_popcount ((mask - 1) & ~mask) & 31; +} + +/* Convert a field of 'width' bits to 'new_width' bits with correct + * rounding. */ +static inline uint32_t +_resize_field (uint32_t field, int width, int new_width) +{ + if (width == 0) + return 0; + + if (width >= new_width) { + return field >> (width - new_width); + } else { + uint32_t result = field << (new_width - width); + + while (width < new_width) { + result |= result >> width; + width <<= 1; + } + return result; + } +} + +static inline uint32_t +_adjust_field (uint32_t field, int adjustment) +{ + return MIN (255, MAX(0, (int)field + adjustment)); +} + +/* Given a shifted field value, (described by 'width' and 'shift), + * resize it 8-bits and return that value. + * + * Note that the original field value must not have any non-field bits + * set. + */ +static inline uint32_t +_field_to_8 (uint32_t field, int width, int shift) +{ + return _resize_field (field >> shift, width, 8); +} + +static inline uint32_t +_field_to_8_undither (uint32_t field, int width, int shift, + int dither_adjustment) +{ + return _adjust_field (_field_to_8 (field, width, shift), - dither_adjustment>>width); +} + +/* Given an 8-bit value, convert it to a field of 'width', shift it up + * to 'shift, and return it. */ +static inline uint32_t +_field_from_8 (uint32_t field, int width, int shift) +{ + return _resize_field (field, 8, width) << shift; +} + +static inline uint32_t +_field_from_8_dither (uint32_t field, int width, int shift, + int8_t dither_adjustment) +{ + return _field_from_8 (_adjust_field (field, dither_adjustment>>width), width, shift); +} + +static inline uint32_t +_pseudocolor_from_rgb888_dither (cairo_xlib_visual_info_t *visual_info, + uint32_t r, uint32_t g, uint32_t b, + int8_t dither_adjustment) +{ + if (r == g && g == b) { + dither_adjustment /= RAMP_SIZE; + return visual_info->gray8_to_pseudocolor[_adjust_field (r, dither_adjustment)]; + } else { + dither_adjustment = visual_info->dither8_to_cube[dither_adjustment+128]; + return visual_info->cube_to_pseudocolor[visual_info->field8_to_cube[_adjust_field (r, dither_adjustment)]] + [visual_info->field8_to_cube[_adjust_field (g, dither_adjustment)]] + [visual_info->field8_to_cube[_adjust_field (b, dither_adjustment)]]; + } +} + +static inline uint32_t +_pseudocolor_to_rgb888 (cairo_xlib_visual_info_t *visual_info, + uint32_t pixel) +{ + uint32_t r, g, b; + pixel &= 0xff; + r = visual_info->colors[pixel].r; + g = visual_info->colors[pixel].g; + b = visual_info->colors[pixel].b; + return (r << 16) | + (g << 8) | + (b ); +} + +/* should range from -128 to 127 */ +#define X 16 +static const int8_t dither_pattern[4][4] = { + {-8*X, +0*X, -6*X, +2*X}, + {+4*X, -4*X, +6*X, -2*X}, + {-5*X, +4*X, -7*X, +1*X}, + {+7*X, -1*X, +5*X, -3*X} +}; +#undef X + +static int bits_per_pixel(cairo_xlib_surface_t *surface) +{ + if (surface->depth > 16) + return 32; + else if (surface->depth > 8) + return 16; + else if (surface->depth > 1) + return 8; + else + return 1; +} + +pixman_format_code_t +_pixman_format_for_xlib_surface (cairo_xlib_surface_t *surface) +{ + cairo_format_masks_t masks; + pixman_format_code_t format; + + masks.bpp = bits_per_pixel (surface); + masks.alpha_mask = surface->a_mask; + masks.red_mask = surface->r_mask; + masks.green_mask = surface->g_mask; + masks.blue_mask = surface->b_mask; + if (! _pixman_format_from_masks (&masks, &format)) + return 0; + + return format; +} + +static cairo_surface_t * +_get_image_surface (cairo_xlib_surface_t *surface, + const cairo_rectangle_int_t *extents, + int try_shm) +{ + cairo_int_status_t status; + cairo_image_surface_t *image = NULL; + XImage *ximage; + pixman_format_code_t pixman_format; + cairo_xlib_display_t *display; + + assert (extents->x >= 0); + assert (extents->y >= 0); + assert (extents->x + extents->width <= surface->width); + assert (extents->y + extents->height <= surface->height); + + if (surface->base.is_clear || + (surface->base.serial == 0 && surface->owns_pixmap)) + { + pixman_format = _pixman_format_for_xlib_surface (surface); + if (pixman_format) + { + return _cairo_image_surface_create_with_pixman_format (NULL, + pixman_format, + extents->width, + extents->height, + 0); + } + } + + if (surface->shm) { + cairo_image_surface_t *src = (cairo_image_surface_t *) surface->shm; + cairo_surface_t *dst; + cairo_surface_pattern_t pattern; + + dst = cairo_image_surface_create (src->format, + extents->width, extents->height); + if (unlikely (dst->status)) + return dst; + + _cairo_pattern_init_for_surface (&pattern, &src->base); + cairo_matrix_init_translate (&pattern.base.matrix, + extents->x, extents->y); + status = _cairo_surface_paint (dst, CAIRO_OPERATOR_SOURCE, &pattern.base, NULL); + _cairo_pattern_fini (&pattern.base); + if (unlikely (status)) { + cairo_surface_destroy (dst); + dst = _cairo_surface_create_in_error (status); + } + + return dst; + } + + status = _cairo_xlib_display_acquire (surface->base.device, &display); + if (status) + return _cairo_surface_create_in_error (status); + + pixman_format = _pixman_format_for_xlib_surface (surface); + if (try_shm && pixman_format) { + image = (cairo_image_surface_t *) + _cairo_xlib_surface_create_shm__image (surface, pixman_format, + extents->width, extents->height); + if (image && image->base.status == CAIRO_STATUS_SUCCESS) { + cairo_xlib_error_func_t old_handler; + XImage shm_image; + Bool success; + + _cairo_xlib_shm_surface_get_ximage (&image->base, &shm_image); + + XSync (display->display, False); + old_handler = XSetErrorHandler (_noop_error_handler); + success = XShmGetImage (display->display, + surface->drawable, + &shm_image, + extents->x, extents->y, + AllPlanes); + XSetErrorHandler (old_handler); + + if (success) { + cairo_device_release (&display->base); + return &image->base; + } + + cairo_surface_destroy (&image->base); + image = NULL; + } + } + + if (surface->use_pixmap == 0) { + cairo_xlib_error_func_t old_handler; + + XSync (display->display, False); + old_handler = XSetErrorHandler (_noop_error_handler); + + ximage = XGetImage (display->display, + surface->drawable, + extents->x, extents->y, + extents->width, extents->height, + AllPlanes, ZPixmap); + + XSetErrorHandler (old_handler); + + /* If we get an error, the surface must have been a window, + * so retry with the safe code path. + */ + if (!ximage) + surface->use_pixmap = CAIRO_ASSUME_PIXMAP; + } else { + surface->use_pixmap--; + ximage = NULL; + } + + if (ximage == NULL) { + /* XGetImage from a window is dangerous because it can + * produce errors if the window is unmapped or partially + * outside the screen. We could check for errors and + * retry, but to keep things simple, we just create a + * temporary pixmap + */ + Pixmap pixmap; + GC gc; + + status = _cairo_xlib_surface_get_gc (display, surface, &gc); + if (unlikely (status)) + goto BAIL; + + pixmap = XCreatePixmap (display->display, + surface->drawable, + extents->width, extents->height, + surface->depth); + if (pixmap) { + XGCValues gcv; + + gcv.subwindow_mode = IncludeInferiors; + XChangeGC (display->display, gc, GCSubwindowMode, &gcv); + + XCopyArea (display->display, surface->drawable, pixmap, gc, + extents->x, extents->y, + extents->width, extents->height, + 0, 0); + + gcv.subwindow_mode = ClipByChildren; + XChangeGC (display->display, gc, GCSubwindowMode, &gcv); + + ximage = XGetImage (display->display, + pixmap, + 0, 0, + extents->width, extents->height, + AllPlanes, ZPixmap); + + XFreePixmap (display->display, pixmap); + } + + _cairo_xlib_surface_put_gc (display, surface, gc); + + if (ximage == NULL) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL; + } + } + + _swap_ximage_to_native (ximage); + + /* We can't use pixman to simply write to image if: + * (a) the pixels are not appropriately aligned, + * (b) pixman does not the pixel format, or + * (c) if the image is palettized and we need to convert. + */ + if (pixman_format && + ximage->bitmap_unit == 32 && ximage->bitmap_pad == 32 && + (surface->visual == NULL || surface->visual->class == TrueColor)) + { + image = (cairo_image_surface_t*) + _cairo_image_surface_create_with_pixman_format ((unsigned char *) ximage->data, + pixman_format, + ximage->width, + ximage->height, + ximage->bytes_per_line); + status = image->base.status; + if (unlikely (status)) + goto BAIL; + + /* Let the surface take ownership of the data */ + _cairo_image_surface_assume_ownership_of_data (image); + ximage->data = NULL; + } else { + /* The visual we are dealing with is not supported by the + * standard pixman formats. So we must first convert the data + * to a supported format. */ + + cairo_format_t format; + unsigned char *data; + uint32_t *row; + uint32_t in_pixel, out_pixel; + unsigned int rowstride; + uint32_t a_mask=0, r_mask=0, g_mask=0, b_mask=0; + int a_width=0, r_width=0, g_width=0, b_width=0; + int a_shift=0, r_shift=0, g_shift=0, b_shift=0; + int x, y, x0, y0, x_off, y_off; + cairo_xlib_visual_info_t *visual_info = NULL; + + if (surface->visual == NULL || surface->visual->class == TrueColor) { + cairo_bool_t has_alpha; + cairo_bool_t has_color; + + has_alpha = surface->a_mask; + has_color = (surface->r_mask || + surface->g_mask || + surface->b_mask); + + if (has_color) { + if (has_alpha) { + format = CAIRO_FORMAT_ARGB32; + } else { + format = CAIRO_FORMAT_RGB24; + } + } else { + /* XXX: Using CAIRO_FORMAT_A8 here would be more + * efficient, but would require slightly different code in + * the image conversion to put the alpha channel values + * into the right place. */ + format = CAIRO_FORMAT_ARGB32; + } + + a_mask = surface->a_mask; + r_mask = surface->r_mask; + g_mask = surface->g_mask; + b_mask = surface->b_mask; + + _characterize_field (a_mask, &a_width, &a_shift); + _characterize_field (r_mask, &r_width, &r_shift); + _characterize_field (g_mask, &g_width, &g_shift); + _characterize_field (b_mask, &b_width, &b_shift); + + } else { + format = CAIRO_FORMAT_RGB24; + + status = _cairo_xlib_screen_get_visual_info (display, + surface->screen, + surface->visual, + &visual_info); + if (unlikely (status)) + goto BAIL; + } + + image = (cairo_image_surface_t *) cairo_image_surface_create + (format, ximage->width, ximage->height); + status = image->base.status; + if (unlikely (status)) + goto BAIL; + + data = cairo_image_surface_get_data (&image->base); + rowstride = cairo_image_surface_get_stride (&image->base) >> 2; + row = (uint32_t *) data; + x0 = extents->x + surface->base.device_transform.x0; + y0 = extents->y + surface->base.device_transform.y0; + for (y = 0, y_off = y0 % ARRAY_LENGTH (dither_pattern); + y < ximage->height; + y++, y_off = (y_off+1) % ARRAY_LENGTH (dither_pattern)) { + const int8_t *dither_row = dither_pattern[y_off]; + for (x = 0, x_off = x0 % ARRAY_LENGTH (dither_pattern[0]); + x < ximage->width; + x++, x_off = (x_off+1) % ARRAY_LENGTH (dither_pattern[0])) { + int dither_adjustment = dither_row[x_off]; + + in_pixel = XGetPixel (ximage, x, y); + if (visual_info == NULL) { + out_pixel = ( + (uint32_t)_field_to_8 (in_pixel & a_mask, a_width, a_shift) << 24 | + _field_to_8_undither (in_pixel & r_mask, r_width, r_shift, dither_adjustment) << 16 | + _field_to_8_undither (in_pixel & g_mask, g_width, g_shift, dither_adjustment) << 8 | + _field_to_8_undither (in_pixel & b_mask, b_width, b_shift, dither_adjustment)); + } else { + /* Undithering pseudocolor does not look better */ + out_pixel = _pseudocolor_to_rgb888 (visual_info, in_pixel); + } + row[x] = out_pixel; + } + row += rowstride; + } + cairo_surface_mark_dirty (&image->base); + } + + BAIL: + if (ximage) + XDestroyImage (ximage); + + cairo_device_release (&display->base); + + if (unlikely (status)) { + if (image) + cairo_surface_destroy (&image->base); + return _cairo_surface_create_in_error (status); + } + + return &image->base; +} + +void +_cairo_xlib_surface_set_precision (cairo_xlib_surface_t *surface, + cairo_antialias_t antialias) +{ + cairo_xlib_display_t *display = surface->display; + int precision; + + if (display->force_precision != -1) + precision = display->force_precision; + else switch (antialias) { + default: + case CAIRO_ANTIALIAS_DEFAULT: + case CAIRO_ANTIALIAS_GRAY: + case CAIRO_ANTIALIAS_NONE: + case CAIRO_ANTIALIAS_FAST: + case CAIRO_ANTIALIAS_GOOD: + precision = PolyModeImprecise; + break; + case CAIRO_ANTIALIAS_BEST: + case CAIRO_ANTIALIAS_SUBPIXEL: + precision = PolyModePrecise; + break; + } + + if (surface->precision != precision) { + XRenderPictureAttributes pa; + + pa.poly_mode = precision; + XRenderChangePicture (display->display, surface->picture, + CPPolyMode, &pa); + + surface->precision = precision; + } +} + +void +_cairo_xlib_surface_ensure_picture (cairo_xlib_surface_t *surface) +{ + cairo_xlib_display_t *display = surface->display; + XRenderPictureAttributes pa; + int mask = 0; + + if (surface->picture) + return; + + if (display->force_precision != -1) + pa.poly_mode = display->force_precision; + else + pa.poly_mode = PolyModeImprecise; + if (pa.poly_mode) + mask |= CPPolyMode; + + surface->precision = pa.poly_mode; + surface->picture = XRenderCreatePicture (display->display, + surface->drawable, + surface->xrender_format, + mask, &pa); +} + +cairo_status_t +_cairo_xlib_surface_draw_image (cairo_xlib_surface_t *surface, + cairo_image_surface_t *image, + int src_x, + int src_y, + int width, + int height, + int dst_x, + int dst_y) +{ + cairo_xlib_display_t *display; + XImage ximage; + cairo_format_masks_t image_masks; + int native_byte_order = _cairo_is_little_endian () ? LSBFirst : MSBFirst; + cairo_surface_t *shm_image = NULL; + pixman_image_t *pixman_image = NULL; + cairo_status_t status; + cairo_bool_t own_data = FALSE; + cairo_bool_t is_rgb_image; + GC gc; + + ximage.width = image->width; + ximage.height = image->height; + ximage.format = ZPixmap; + ximage.byte_order = native_byte_order; + ximage.bitmap_unit = 32; /* always for libpixman */ + ximage.bitmap_bit_order = native_byte_order; + ximage.bitmap_pad = 32; /* always for libpixman */ + ximage.depth = surface->depth; + ximage.red_mask = surface->r_mask; + ximage.green_mask = surface->g_mask; + ximage.blue_mask = surface->b_mask; + ximage.xoffset = 0; + ximage.obdata = NULL; + + status = _cairo_xlib_display_acquire (surface->base.device, &display); + if (unlikely (status)) + return status; + + is_rgb_image = _pixman_format_to_masks (image->pixman_format, &image_masks); + + if (is_rgb_image && + (image_masks.alpha_mask == surface->a_mask || surface->a_mask == 0) && + (image_masks.red_mask == surface->r_mask || surface->r_mask == 0) && + (image_masks.green_mask == surface->g_mask || surface->g_mask == 0) && + (image_masks.blue_mask == surface->b_mask || surface->b_mask == 0)) + { + int ret; + + ximage.bits_per_pixel = image_masks.bpp; + ximage.bytes_per_line = image->stride; + ximage.data = (char *)image->data; + if (image->base.device != surface->base.device) { + /* If PutImage will break the image up into chunks, prefer to + * send it all in one pass with ShmPutImage. For larger images, + * it is further advantageous to reduce the number of copies, + * albeit at the expense of more SHM bookkeeping. + */ + int max_request_size = XExtendedMaxRequestSize (display->display); + if (max_request_size == 0) + max_request_size = XMaxRequestSize (display->display); + if (max_request_size > 8192) + max_request_size = 8192; + if (width * height * 4 > max_request_size) { + shm_image = _cairo_xlib_surface_create_shm__image (surface, + image->pixman_format, + width, height); + if (shm_image && shm_image->status == CAIRO_STATUS_SUCCESS) { + cairo_image_surface_t *clone = (cairo_image_surface_t *) shm_image; + pixman_image_composite32 (PIXMAN_OP_SRC, + image->pixman_image, NULL, clone->pixman_image, + src_x, src_y, + 0, 0, + 0, 0, + width, height); + ximage.obdata = _cairo_xlib_shm_surface_get_obdata (shm_image); + ximage.data = (char *)clone->data; + ximage.bytes_per_line = clone->stride; + ximage.width = width; + ximage.height = height; + src_x = src_y = 0; + } + } + } else + ximage.obdata = _cairo_xlib_shm_surface_get_obdata (&image->base); + + ret = XInitImage (&ximage); + assert (ret != 0); + } + else if (surface->visual == NULL || surface->visual->class == TrueColor) + { + pixman_format_code_t intermediate_format; + int ret; + + image_masks.alpha_mask = surface->a_mask; + image_masks.red_mask = surface->r_mask; + image_masks.green_mask = surface->g_mask; + image_masks.blue_mask = surface->b_mask; + image_masks.bpp = bits_per_pixel (surface); + ret = _pixman_format_from_masks (&image_masks, &intermediate_format); + assert (ret); + + shm_image = _cairo_xlib_surface_create_shm__image (surface, + intermediate_format, + width, height); + if (shm_image && shm_image->status == CAIRO_STATUS_SUCCESS) { + cairo_image_surface_t *clone = (cairo_image_surface_t *) shm_image; + + pixman_image_composite32 (PIXMAN_OP_SRC, + image->pixman_image, + NULL, + clone->pixman_image, + src_x, src_y, + 0, 0, + 0, 0, + width, height); + + ximage.data = (char *) clone->data; + ximage.obdata = _cairo_xlib_shm_surface_get_obdata (&clone->base); + ximage.bytes_per_line = clone->stride; + } else { + pixman_image = pixman_image_create_bits (intermediate_format, + width, height, NULL, 0); + if (pixman_image == NULL) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL; + } + + pixman_image_composite32 (PIXMAN_OP_SRC, + image->pixman_image, + NULL, + pixman_image, + src_x, src_y, + 0, 0, + 0, 0, + width, height); + + ximage.data = (char *) pixman_image_get_data (pixman_image); + ximage.bytes_per_line = pixman_image_get_stride (pixman_image); + } + + ximage.width = width; + ximage.height = height; + ximage.bits_per_pixel = image_masks.bpp; + + ret = XInitImage (&ximage); + assert (ret != 0); + + src_x = src_y = 0; + } + else + { + unsigned int stride, rowstride; + int x, y, x0, y0, x_off, y_off; + uint32_t in_pixel, out_pixel, *row; + int i_a_width=0, i_r_width=0, i_g_width=0, i_b_width=0; + int i_a_shift=0, i_r_shift=0, i_g_shift=0, i_b_shift=0; + int o_a_width=0, o_r_width=0, o_g_width=0, o_b_width=0; + int o_a_shift=0, o_r_shift=0, o_g_shift=0, o_b_shift=0; + cairo_xlib_visual_info_t *visual_info = NULL; + cairo_bool_t true_color; + int ret; + + ximage.bits_per_pixel = bits_per_pixel(surface); + stride = CAIRO_STRIDE_FOR_WIDTH_BPP (ximage.width, + ximage.bits_per_pixel); + ximage.bytes_per_line = stride; + ximage.data = _cairo_malloc_ab (stride, ximage.height); + if (unlikely (ximage.data == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto BAIL; + } + + own_data = TRUE; + + ret = XInitImage (&ximage); + assert (ret != 0); + + _characterize_field (image_masks.alpha_mask, &i_a_width, &i_a_shift); + _characterize_field (image_masks.red_mask , &i_r_width, &i_r_shift); + _characterize_field (image_masks.green_mask, &i_g_width, &i_g_shift); + _characterize_field (image_masks.blue_mask , &i_b_width, &i_b_shift); + + true_color = surface->visual == NULL || + surface->visual->class == TrueColor; + if (true_color) { + _characterize_field (surface->a_mask, &o_a_width, &o_a_shift); + _characterize_field (surface->r_mask, &o_r_width, &o_r_shift); + _characterize_field (surface->g_mask, &o_g_width, &o_g_shift); + _characterize_field (surface->b_mask, &o_b_width, &o_b_shift); + } else { + status = _cairo_xlib_screen_get_visual_info (display, + surface->screen, + surface->visual, + &visual_info); + if (unlikely (status)) + goto BAIL; + } + + rowstride = image->stride >> 2; + row = (uint32_t *) image->data; + x0 = dst_x + surface->base.device_transform.x0; + y0 = dst_y + surface->base.device_transform.y0; + for (y = 0, y_off = y0 % ARRAY_LENGTH (dither_pattern); + y < ximage.height; + y++, y_off = (y_off+1) % ARRAY_LENGTH (dither_pattern)) + { + const int8_t *dither_row = dither_pattern[y_off]; + + for (x = 0, x_off = x0 % ARRAY_LENGTH (dither_pattern[0]); + x < ximage.width; + x++, x_off = (x_off+1) % ARRAY_LENGTH (dither_pattern[0])) + { + int dither_adjustment = dither_row[x_off]; + int a, r, g, b; + + if (image_masks.bpp == 1) + in_pixel = !! (((uint8_t*)row)[x/8] & (1 << (x & 7))); + else if (image_masks.bpp <= 8) + in_pixel = ((uint8_t*)row)[x]; + else if (image_masks.bpp <= 16) + in_pixel = ((uint16_t*)row)[x]; + else if (image_masks.bpp <= 24) +#ifdef WORDS_BIGENDIAN + in_pixel = ((uint8_t*)row)[3 * x] << 16 | + ((uint8_t*)row)[3 * x + 1] << 8 | + ((uint8_t*)row)[3 * x + 2]; +#else + in_pixel = ((uint8_t*)row)[3 * x] | + ((uint8_t*)row)[3 * x + 1] << 8 | + ((uint8_t*)row)[3 * x + 2] << 16; +#endif + else + in_pixel = row[x]; + + /* If the incoming image has no alpha channel, then the input + * is opaque and the output should have the maximum alpha value. + * For all other channels, their absence implies 0. + */ + if (image_masks.alpha_mask == 0x0) + a = 0xff; + else + a = _field_to_8 (in_pixel & image_masks.alpha_mask, i_a_width, i_a_shift); + r = _field_to_8 (in_pixel & image_masks.red_mask , i_r_width, i_r_shift); + g = _field_to_8 (in_pixel & image_masks.green_mask, i_g_width, i_g_shift); + b = _field_to_8 (in_pixel & image_masks.blue_mask , i_b_width, i_b_shift); + + if (true_color) { + out_pixel = _field_from_8 (a, o_a_width, o_a_shift) | + _field_from_8_dither (r, o_r_width, o_r_shift, dither_adjustment) | + _field_from_8_dither (g, o_g_width, o_g_shift, dither_adjustment) | + _field_from_8_dither (b, o_b_width, o_b_shift, dither_adjustment); + } else { + out_pixel = _pseudocolor_from_rgb888_dither (visual_info, r, g, b, dither_adjustment); + } + + XPutPixel (&ximage, x, y, out_pixel); + } + + row += rowstride; + } + } + + status = _cairo_xlib_surface_get_gc (display, surface, &gc); + if (unlikely (status)) + goto BAIL; + + if (ximage.obdata) + XShmPutImage (display->display, surface->drawable, gc, &ximage, + src_x, src_y, dst_x, dst_y, width, height, True); + else + XPutImage (display->display, surface->drawable, gc, &ximage, + src_x, src_y, dst_x, dst_y, width, height); + + _cairo_xlib_surface_put_gc (display, surface, gc); + + BAIL: + cairo_device_release (&display->base); + + if (own_data) + free (ximage.data); + if (shm_image) + cairo_surface_destroy (shm_image); + if (pixman_image) + pixman_image_unref (pixman_image); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_surface_t * +_cairo_xlib_surface_source(void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_xlib_surface_t *surface = abstract_surface; + + if (extents) { + extents->x = extents->y = 0; + extents->width = surface->width; + extents->height = surface->height; + } + + return &surface->base; +} + +static cairo_status_t +_cairo_xlib_surface_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + cairo_xlib_surface_t *surface = abstract_surface; + cairo_rectangle_int_t extents; + + *image_extra = NULL; + *image_out = (cairo_image_surface_t *) + _cairo_xlib_surface_get_shm (abstract_surface, FALSE); + if (*image_out) + return (*image_out)->base.status; + + extents.x = extents.y = 0; + extents.width = surface->width; + extents.height = surface->height; + + *image_out = (cairo_image_surface_t*) + _get_image_surface (surface, &extents, TRUE); + return (*image_out)->base.status; +} + +static cairo_surface_t * +_cairo_xlib_surface_snapshot (void *abstract_surface) +{ + cairo_xlib_surface_t *surface = abstract_surface; + cairo_rectangle_int_t extents; + + extents.x = extents.y = 0; + extents.width = surface->width; + extents.height = surface->height; + + return _get_image_surface (surface, &extents, FALSE); +} + +static void +_cairo_xlib_surface_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *image_extra) +{ + cairo_xlib_surface_t *surface = abstract_surface; + + if (&image->base == surface->shm) + return; + + cairo_surface_destroy (&image->base); +} + +static cairo_image_surface_t * +_cairo_xlib_surface_map_to_image (void *abstract_surface, + const cairo_rectangle_int_t *extents) +{ + cairo_xlib_surface_t *surface = abstract_surface; + cairo_surface_t *image; + + image = _cairo_xlib_surface_get_shm (abstract_surface, FALSE); + if (image) { + assert (surface->base.damage); + surface->fallback++; + return _cairo_image_surface_map_to_image (image, extents); + } + + image = _get_image_surface (abstract_surface, extents, TRUE); + cairo_surface_set_device_offset (image, -extents->x, -extents->y); + + return (cairo_image_surface_t *) image; +} + +static cairo_int_status_t +_cairo_xlib_surface_unmap_image (void *abstract_surface, + cairo_image_surface_t *image) +{ + cairo_xlib_surface_t *surface = abstract_surface; + cairo_int_status_t status; + + if (surface->shm) { + cairo_rectangle_int_t r; + + assert (surface->fallback); + assert (surface->base.damage); + + r.x = image->base.device_transform_inverse.x0; + r.y = image->base.device_transform_inverse.y0; + r.width = image->width; + r.height = image->height; + + TRACE ((stderr, "%s: adding damage (%d,%d)x(%d,%d)\n", + __FUNCTION__, r.x, r.y, r.width, r.height)); + surface->shm->damage = + _cairo_damage_add_rectangle (surface->shm->damage, &r); + + return _cairo_image_surface_unmap_image (surface->shm, image); + } + + status = _cairo_xlib_surface_draw_image (abstract_surface, image, + 0, 0, + image->width, image->height, + image->base.device_transform_inverse.x0, + image->base.device_transform_inverse.y0); + + cairo_surface_finish (&image->base); + cairo_surface_destroy (&image->base); + + return status; +} + +static cairo_status_t +_cairo_xlib_surface_flush (void *abstract_surface, + unsigned flags) +{ + cairo_xlib_surface_t *surface = abstract_surface; + cairo_int_status_t status; + + if (flags) + return CAIRO_STATUS_SUCCESS; + + status = _cairo_xlib_surface_put_shm (surface); + if (unlikely (status)) + return status; + + surface->fallback >>= 1; + if (surface->shm && _cairo_xlib_shm_surface_is_idle (surface->shm)) + _cairo_xlib_surface_discard_shm (surface); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_cairo_xlib_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle) +{ + cairo_xlib_surface_t *surface = abstract_surface; + + rectangle->x = 0; + rectangle->y = 0; + + rectangle->width = surface->width; + rectangle->height = surface->height; + + return TRUE; +} + +static void +_cairo_xlib_surface_get_font_options (void *abstract_surface, + cairo_font_options_t *options) +{ + cairo_xlib_surface_t *surface = abstract_surface; + + *options = *_cairo_xlib_screen_get_font_options (surface->screen); +} + +static inline cairo_int_status_t +get_compositor (cairo_xlib_surface_t **surface, + const cairo_compositor_t **compositor) +{ + cairo_xlib_surface_t *s = *surface; + cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS;; + + if (s->fallback) { + assert (s->base.damage != NULL); + assert (s->shm != NULL); + assert (s->shm->damage != NULL); + if (! _cairo_xlib_shm_surface_is_active (s->shm)) { + *surface = (cairo_xlib_surface_t *) s->shm; + *compositor = ((cairo_image_surface_t *) s->shm)->compositor; + s->fallback++; + } else { + status = _cairo_xlib_surface_put_shm (s); + s->fallback = 0; + *compositor = s->compositor; + } + } else + *compositor = s->compositor; + + return status; +} + +static cairo_int_status_t +_cairo_xlib_surface_paint (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_xlib_surface_t *surface = _surface; + const cairo_compositor_t *compositor; + cairo_int_status_t status; + + status = get_compositor (&surface, &compositor); + if (unlikely (status)) + return status; + + return _cairo_compositor_paint (compositor, &surface->base, + op, source, + clip); +} + +static cairo_int_status_t +_cairo_xlib_surface_mask (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_xlib_surface_t *surface = _surface; + const cairo_compositor_t *compositor; + cairo_int_status_t status; + + status = get_compositor (&surface, &compositor); + if (unlikely (status)) + return status; + + return _cairo_compositor_mask (compositor, &surface->base, + op, source, mask, + clip); +} + +static cairo_int_status_t +_cairo_xlib_surface_stroke (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_xlib_surface_t *surface = _surface; + const cairo_compositor_t *compositor; + cairo_int_status_t status; + + status = get_compositor (&surface, &compositor); + if (unlikely (status)) + return status; + + return _cairo_compositor_stroke (compositor, &surface->base, + op, source, + path, style, ctm, ctm_inverse, + tolerance, antialias, + clip); +} + +static cairo_int_status_t +_cairo_xlib_surface_fill (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_xlib_surface_t *surface = _surface; + const cairo_compositor_t *compositor; + cairo_int_status_t status; + + status = get_compositor (&surface, &compositor); + if (unlikely (status)) + return status; + + return _cairo_compositor_fill (compositor, &surface->base, + op, source, + path, fill_rule, tolerance, antialias, + clip); +} + +static cairo_int_status_t +_cairo_xlib_surface_glyphs (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_xlib_surface_t *surface = _surface; + const cairo_compositor_t *compositor; + cairo_int_status_t status; + + status = get_compositor (&surface, &compositor); + if (unlikely (status)) + return status; + + return _cairo_compositor_glyphs (compositor, &surface->base, + op, source, + glyphs, num_glyphs, scaled_font, + clip); +} + +static const cairo_surface_backend_t cairo_xlib_surface_backend = { + CAIRO_SURFACE_TYPE_XLIB, + _cairo_xlib_surface_finish, + + _cairo_default_context_create, + + _cairo_xlib_surface_create_similar, + _cairo_xlib_surface_create_similar_shm, + _cairo_xlib_surface_map_to_image, + _cairo_xlib_surface_unmap_image, + + _cairo_xlib_surface_source, + _cairo_xlib_surface_acquire_source_image, + _cairo_xlib_surface_release_source_image, + _cairo_xlib_surface_snapshot, + + NULL, /* copy_page */ + NULL, /* show_page */ + + _cairo_xlib_surface_get_extents, + _cairo_xlib_surface_get_font_options, + + _cairo_xlib_surface_flush, + NULL, /* mark_dirty_rectangle */ + + _cairo_xlib_surface_paint, + _cairo_xlib_surface_mask, + _cairo_xlib_surface_stroke, + _cairo_xlib_surface_fill, + NULL, /* fill-stroke */ + _cairo_xlib_surface_glyphs, +}; + +/** + * _cairo_surface_is_xlib: + * @surface: a #cairo_surface_t + * + * Checks if a surface is a #cairo_xlib_surface_t + * + * Return value: True if the surface is an xlib surface + **/ +static cairo_bool_t +_cairo_surface_is_xlib (cairo_surface_t *surface) +{ + return surface->backend == &cairo_xlib_surface_backend; +} + +static cairo_surface_t * +_cairo_xlib_surface_create_internal (cairo_xlib_screen_t *screen, + Drawable drawable, + Visual *visual, + XRenderPictFormat *xrender_format, + int width, + int height, + int depth) +{ + cairo_xlib_surface_t *surface; + cairo_xlib_display_t *display; + cairo_status_t status; + + if (depth == 0) { + if (xrender_format) { + depth = xrender_format->depth; + + /* XXX find matching visual for core/dithering fallbacks? */ + } else if (visual) { + Screen *scr = screen->screen; + + if (visual == DefaultVisualOfScreen (scr)) { + depth = DefaultDepthOfScreen (scr); + } else { + int j, k; + + /* This is ugly, but we have to walk over all visuals + * for the display to find the correct depth. + */ + depth = 0; + for (j = 0; j < scr->ndepths; j++) { + Depth *d = &scr->depths[j]; + for (k = 0; k < d->nvisuals; k++) { + if (&d->visuals[k] == visual) { + depth = d->depth; + goto found; + } + } + } + } + } + + if (depth == 0) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_VISUAL)); + +found: + ; + } + + surface = _cairo_calloc (sizeof (cairo_xlib_surface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + status = _cairo_xlib_display_acquire (screen->device, &display); + if (unlikely (status)) { + free (surface); + return _cairo_surface_create_in_error (_cairo_error (status)); + } + + surface->display = display; + if (CAIRO_RENDER_HAS_CREATE_PICTURE (display)) { + if (!xrender_format) { + if (visual) { + xrender_format = XRenderFindVisualFormat (display->display, visual); + } else if (depth == 1) { + xrender_format = + _cairo_xlib_display_get_xrender_format (display, + CAIRO_FORMAT_A1); + } + } + } + + cairo_device_release (&display->base); + + _cairo_surface_init (&surface->base, + &cairo_xlib_surface_backend, + screen->device, + _xrender_format_to_content (xrender_format), + FALSE); /* is_vector */ + + surface->screen = screen; + surface->compositor = display->compositor; + surface->shm = NULL; + surface->fallback = 0; + + surface->drawable = drawable; + surface->owns_pixmap = FALSE; + surface->use_pixmap = 0; + surface->width = width; + surface->height = height; + + surface->picture = None; + surface->precision = PolyModePrecise; + + surface->embedded_source.picture = None; + + surface->visual = visual; + surface->xrender_format = xrender_format; + surface->depth = depth; + + /* + * Compute the pixel format masks from either a XrenderFormat or + * else from a visual; failing that we assume the drawable is an + * alpha-only pixmap as it could only have been created that way + * through the cairo_xlib_surface_create_for_bitmap function. + */ + if (xrender_format) { + surface->a_mask = (unsigned long) + surface->xrender_format->direct.alphaMask + << surface->xrender_format->direct.alpha; + surface->r_mask = (unsigned long) + surface->xrender_format->direct.redMask + << surface->xrender_format->direct.red; + surface->g_mask = (unsigned long) + surface->xrender_format->direct.greenMask + << surface->xrender_format->direct.green; + surface->b_mask = (unsigned long) + surface->xrender_format->direct.blueMask + << surface->xrender_format->direct.blue; + } else if (visual) { + surface->a_mask = 0; + surface->r_mask = visual->red_mask; + surface->g_mask = visual->green_mask; + surface->b_mask = visual->blue_mask; + } else { + if (depth < 32) + surface->a_mask = (1 << depth) - 1; + else + surface->a_mask = 0xffffffff; + surface->r_mask = 0; + surface->g_mask = 0; + surface->b_mask = 0; + } + + cairo_list_add (&surface->link, &screen->surfaces); + + return &surface->base; +} + +static Screen * +_cairo_xlib_screen_from_visual (Display *dpy, Visual *visual) +{ + int s, d, v; + + for (s = 0; s < ScreenCount (dpy); s++) { + Screen *screen; + + screen = ScreenOfDisplay (dpy, s); + if (visual == DefaultVisualOfScreen (screen)) + return screen; + + for (d = 0; d < screen->ndepths; d++) { + Depth *depth; + + depth = &screen->depths[d]; + for (v = 0; v < depth->nvisuals; v++) + if (visual == &depth->visuals[v]) + return screen; + } + } + + return NULL; +} + +static cairo_bool_t valid_size (int width, int height) +{ + /* Note: the minimum surface size allowed in the X protocol is 1x1. + * However, as we historically did not check the minimum size we + * allowed applications to lie and set the correct size later (one hopes). + * To preserve compatibility we must allow applications to use + * 0x0 surfaces. + */ + return (width >= 0 && width <= XLIB_COORD_MAX && + height >= 0 && height <= XLIB_COORD_MAX); +} + +/** + * cairo_xlib_surface_create: + * @dpy: an X Display + * @drawable: an X Drawable, (a Pixmap or a Window) + * @visual: the visual to use for drawing to @drawable. The depth + * of the visual must match the depth of the drawable. + * Currently, only TrueColor visuals are fully supported. + * @width: the current width of @drawable. + * @height: the current height of @drawable. + * + * Creates an Xlib surface that draws to the given drawable. + * The way that colors are represented in the drawable is specified + * by the provided visual. + * + * Note: If @drawable is a Window, then the function + * cairo_xlib_surface_set_size() must be called whenever the size of the + * window changes. + * + * When @drawable is a Window containing child windows then drawing to + * the created surface will be clipped by those child windows. When + * the created surface is used as a source, the contents of the + * children will be included. + * + * Return value: the newly created surface + * + * Since: 1.0 + **/ +cairo_surface_t * +cairo_xlib_surface_create (Display *dpy, + Drawable drawable, + Visual *visual, + int width, + int height) +{ + Screen *scr; + cairo_xlib_screen_t *screen; + cairo_status_t status; + + if (! valid_size (width, height)) { + /* you're lying, and you know it! */ + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + } + + scr = _cairo_xlib_screen_from_visual (dpy, visual); + if (scr == NULL) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_VISUAL)); + + status = _cairo_xlib_screen_get (dpy, scr, &screen); + if (unlikely (status)) + return _cairo_surface_create_in_error (status); + + X_DEBUG ((dpy, "create (drawable=%x)", (unsigned int) drawable)); + + return _cairo_xlib_surface_create_internal (screen, drawable, + visual, NULL, + width, height, 0); +} + +/** + * cairo_xlib_surface_create_for_bitmap: + * @dpy: an X Display + * @bitmap: an X Drawable, (a depth-1 Pixmap) + * @screen: the X Screen associated with @bitmap + * @width: the current width of @bitmap. + * @height: the current height of @bitmap. + * + * Creates an Xlib surface that draws to the given bitmap. + * This will be drawn to as a %CAIRO_FORMAT_A1 object. + * + * Return value: the newly created surface + * + * Since: 1.0 + **/ +cairo_surface_t * +cairo_xlib_surface_create_for_bitmap (Display *dpy, + Pixmap bitmap, + Screen *scr, + int width, + int height) +{ + cairo_xlib_screen_t *screen; + cairo_status_t status; + + if (! valid_size (width, height)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + + status = _cairo_xlib_screen_get (dpy, scr, &screen); + if (unlikely (status)) + return _cairo_surface_create_in_error (status); + + X_DEBUG ((dpy, "create_for_bitmap (drawable=%x)", (unsigned int) bitmap)); + + return _cairo_xlib_surface_create_internal (screen, bitmap, + NULL, NULL, + width, height, 1); +} + +#if CAIRO_HAS_XLIB_XRENDER_SURFACE +/** + * cairo_xlib_surface_create_with_xrender_format: + * @dpy: an X Display + * @drawable: an X Drawable, (a Pixmap or a Window) + * @screen: the X Screen associated with @drawable + * @format: the picture format to use for drawing to @drawable. The depth + * of @format must match the depth of the drawable. + * @width: the current width of @drawable. + * @height: the current height of @drawable. + * + * Creates an Xlib surface that draws to the given drawable. + * The way that colors are represented in the drawable is specified + * by the provided picture format. + * + * Note: If @drawable is a Window, then the function + * cairo_xlib_surface_set_size() must be called whenever the size of the + * window changes. + * + * Return value: the newly created surface + * + * Since: 1.0 + **/ +cairo_surface_t * +cairo_xlib_surface_create_with_xrender_format (Display *dpy, + Drawable drawable, + Screen *scr, + XRenderPictFormat *format, + int width, + int height) +{ + cairo_xlib_screen_t *screen; + cairo_status_t status; + + if (! valid_size (width, height)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); + + status = _cairo_xlib_screen_get (dpy, scr, &screen); + if (unlikely (status)) + return _cairo_surface_create_in_error (status); + + X_DEBUG ((dpy, "create_with_xrender_format (drawable=%x)", (unsigned int) drawable)); + + return _cairo_xlib_surface_create_internal (screen, drawable, + _visual_for_xrender_format (scr, format), + format, width, height, 0); +} + +/** + * cairo_xlib_surface_get_xrender_format: + * @surface: an xlib surface + * + * Gets the X Render picture format that @surface uses for rendering with the + * X Render extension. If the surface was created by + * cairo_xlib_surface_create_with_xrender_format() originally, the return + * value is the format passed to that constructor. + * + * Return value: the XRenderPictFormat* associated with @surface, + * or %NULL if the surface is not an xlib surface + * or if the X Render extension is not available. + * + * Since: 1.6 + **/ +XRenderPictFormat * +cairo_xlib_surface_get_xrender_format (cairo_surface_t *surface) +{ + cairo_xlib_surface_t *xlib_surface = (cairo_xlib_surface_t *) surface; + + /* Throw an error for a non-xlib surface */ + if (! _cairo_surface_is_xlib (surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return NULL; + } + + return xlib_surface->xrender_format; +} +#endif + +/** + * cairo_xlib_surface_set_size: + * @surface: a #cairo_surface_t for the XLib backend + * @width: the new width of the surface + * @height: the new height of the surface + * + * Informs cairo of the new size of the X Drawable underlying the + * surface. For a surface created for a Window (rather than a Pixmap), + * this function must be called each time the size of the window + * changes. (For a subwindow, you are normally resizing the window + * yourself, but for a toplevel window, it is necessary to listen for + * ConfigureNotify events.) + * + * A Pixmap can never change size, so it is never necessary to call + * this function on a surface created for a Pixmap. + * + * Since: 1.0 + **/ +void +cairo_xlib_surface_set_size (cairo_surface_t *abstract_surface, + int width, + int height) +{ + cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *) abstract_surface; + cairo_status_t status; + + if (unlikely (abstract_surface->status)) + return; + if (unlikely (abstract_surface->finished)) { + _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return; + } + + if (! _cairo_surface_is_xlib (abstract_surface)) { + _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + return; + } + + if (surface->width == width && surface->height == height) + return; + + if (! valid_size (width, height)) { + _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_INVALID_SIZE)); + return; + } + + status = _cairo_surface_flush (abstract_surface, 0); + if (unlikely (status)) { + _cairo_surface_set_error (abstract_surface, status); + return; + } + + _cairo_xlib_surface_discard_shm (surface); + + surface->width = width; + surface->height = height; +} + +/** + * cairo_xlib_surface_set_drawable: + * @surface: a #cairo_surface_t for the XLib backend + * @drawable: the new drawable for the surface + * @width: the width of the new drawable + * @height: the height of the new drawable + * + * Informs cairo of a new X Drawable underlying the + * surface. The drawable must match the display, screen + * and format of the existing drawable or the application + * will get X protocol errors and will probably terminate. + * No checks are done by this function to ensure this + * compatibility. + * + * Since: 1.0 + **/ +void +cairo_xlib_surface_set_drawable (cairo_surface_t *abstract_surface, + Drawable drawable, + int width, + int height) +{ + cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *)abstract_surface; + cairo_status_t status; + + if (unlikely (abstract_surface->status)) + return; + if (unlikely (abstract_surface->finished)) { + status = _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return; + } + + if (! _cairo_surface_is_xlib (abstract_surface)) { + status = _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + return; + } + + if (! valid_size (width, height)) { + status = _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_INVALID_SIZE)); + return; + } + + /* XXX: and what about this case? */ + if (surface->owns_pixmap) + return; + + status = _cairo_surface_flush (abstract_surface, 0); + if (unlikely (status)) { + _cairo_surface_set_error (abstract_surface, status); + return; + } + + if (surface->drawable != drawable) { + cairo_xlib_display_t *display; + + status = _cairo_xlib_display_acquire (surface->base.device, &display); + if (unlikely (status)) + return; + + X_DEBUG ((display->display, "set_drawable (drawable=%x)", (unsigned int) drawable)); + + if (surface->picture != None) { + XRenderFreePicture (display->display, surface->picture); + if (unlikely (status)) { + status = _cairo_surface_set_error (&surface->base, status); + return; + } + + surface->picture = None; + } + + cairo_device_release (&display->base); + + surface->drawable = drawable; + } + + if (surface->width != width || surface->height != height) { + _cairo_xlib_surface_discard_shm (surface); + + surface->width = width; + surface->height = height; + } +} + +/** + * cairo_xlib_surface_get_display: + * @surface: a #cairo_xlib_surface_t + * + * Get the X Display for the underlying X Drawable. + * + * Return value: the display. + * + * Since: 1.2 + **/ +Display * +cairo_xlib_surface_get_display (cairo_surface_t *abstract_surface) +{ + if (! _cairo_surface_is_xlib (abstract_surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return NULL; + } + + return ((cairo_xlib_display_t *) abstract_surface->device)->display; +} + +/** + * cairo_xlib_surface_get_drawable: + * @surface: a #cairo_xlib_surface_t + * + * Get the underlying X Drawable used for the surface. + * + * Return value: the drawable. + * + * Since: 1.2 + **/ +Drawable +cairo_xlib_surface_get_drawable (cairo_surface_t *abstract_surface) +{ + cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *) abstract_surface; + + if (! _cairo_surface_is_xlib (abstract_surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + + return surface->drawable; +} + +/** + * cairo_xlib_surface_get_screen: + * @surface: a #cairo_xlib_surface_t + * + * Get the X Screen for the underlying X Drawable. + * + * Return value: the screen. + * + * Since: 1.2 + **/ +Screen * +cairo_xlib_surface_get_screen (cairo_surface_t *abstract_surface) +{ + cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *) abstract_surface; + + if (! _cairo_surface_is_xlib (abstract_surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return NULL; + } + + return surface->screen->screen; +} + +/** + * cairo_xlib_surface_get_visual: + * @surface: a #cairo_xlib_surface_t + * + * Gets the X Visual associated with @surface, suitable for use with the + * underlying X Drawable. If @surface was created by + * cairo_xlib_surface_create(), the return value is the Visual passed to that + * constructor. + * + * Return value: the Visual or %NULL if there is no appropriate Visual for + * @surface. + * + * Since: 1.2 + **/ +Visual * +cairo_xlib_surface_get_visual (cairo_surface_t *surface) +{ + cairo_xlib_surface_t *xlib_surface = (cairo_xlib_surface_t *) surface; + + if (! _cairo_surface_is_xlib (surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return NULL; + } + + return xlib_surface->visual; +} + +/** + * cairo_xlib_surface_get_depth: + * @surface: a #cairo_xlib_surface_t + * + * Get the number of bits used to represent each pixel value. + * + * Return value: the depth of the surface in bits. + * + * Since: 1.2 + **/ +int +cairo_xlib_surface_get_depth (cairo_surface_t *abstract_surface) +{ + cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *) abstract_surface; + + if (! _cairo_surface_is_xlib (abstract_surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + + return surface->depth; +} + +/** + * cairo_xlib_surface_get_width: + * @surface: a #cairo_xlib_surface_t + * + * Get the width of the X Drawable underlying the surface in pixels. + * + * Return value: the width of the surface in pixels. + * + * Since: 1.2 + **/ +int +cairo_xlib_surface_get_width (cairo_surface_t *abstract_surface) +{ + cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *) abstract_surface; + + if (! _cairo_surface_is_xlib (abstract_surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + + return surface->width; +} + +/** + * cairo_xlib_surface_get_height: + * @surface: a #cairo_xlib_surface_t + * + * Get the height of the X Drawable underlying the surface in pixels. + * + * Return value: the height of the surface in pixels. + * + * Since: 1.2 + **/ +int +cairo_xlib_surface_get_height (cairo_surface_t *abstract_surface) +{ + cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *) abstract_surface; + + if (! _cairo_surface_is_xlib (abstract_surface)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + + return surface->height; +} + +#endif /* !CAIRO_HAS_XLIB_XCB_FUNCTIONS */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib-visual.c b/local/recipes/libs/cairo/source/src/cairo-xlib-visual.c new file mode 100644 index 0000000000..055e441e4a --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib-visual.c @@ -0,0 +1,194 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2008 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl D. Worth + */ + +#include "cairoint.h" + +#if !CAIRO_HAS_XLIB_XCB_FUNCTIONS + +#include "cairo-xlib-private.h" + +#include "cairo-error-private.h" +#include "cairo-list-inline.h" + +/* A perceptual distance metric between two colors. No sqrt needed + * since the square of the distance is still a valid metric. */ + +/* XXX: This is currently using linear distance in RGB space which is + * decidedly not perceptually linear. If someone cared a lot about the + * quality, they might choose something else here. Then again, they + * might also choose not to use a PseudoColor visual... */ +static inline int +_color_distance (unsigned short r1, unsigned short g1, unsigned short b1, + unsigned short r2, unsigned short g2, unsigned short b2) +{ + r1 >>= 8; g1 >>= 8; b1 >>= 8; + r2 >>= 8; g2 >>= 8; b2 >>= 8; + + return ((r2 - r1) * (r2 - r1) + + (g2 - g1) * (g2 - g1) + + (b2 - b1) * (b2 - b1)); +} + +cairo_status_t +_cairo_xlib_visual_info_create (Display *dpy, + int screen, + VisualID visualid, + cairo_xlib_visual_info_t **out) +{ + cairo_xlib_visual_info_t *info; + Colormap colormap = DefaultColormap (dpy, screen); + XColor color; + int gray, red, green, blue; + int i, j, distance, min_distance = 0; + XColor colors[256]; + unsigned short cube_index_to_short[CUBE_SIZE]; + unsigned short ramp_index_to_short[RAMP_SIZE]; + unsigned char gray_to_pseudocolor[RAMP_SIZE]; + + for (i = 0; i < CUBE_SIZE; i++) + cube_index_to_short[i] = (0xffff * i + ((CUBE_SIZE-1)>>1)) / (CUBE_SIZE-1); + for (i = 0; i < RAMP_SIZE; i++) + ramp_index_to_short[i] = (0xffff * i + ((RAMP_SIZE-1)>>1)) / (RAMP_SIZE-1); + + info = _cairo_calloc (sizeof (cairo_xlib_visual_info_t)); + if (unlikely (info == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + cairo_list_init (&info->link); + info->visualid = visualid; + + /* Allocate a gray ramp and a color cube. + * Give up as soon as failures start. */ + + for (gray = 0; gray < RAMP_SIZE; gray++) { + color.red = color.green = color.blue = ramp_index_to_short[gray]; + if (! XAllocColor (dpy, colormap, &color)) + goto DONE_ALLOCATE; + } + + /* XXX: Could do this in a more clever order to have the best + * possible results from early failure. Could also choose a cube + * uniformly distributed in a better space than RGB. */ + for (red = 0; red < CUBE_SIZE; red++) { + for (green = 0; green < CUBE_SIZE; green++) { + for (blue = 0; blue < CUBE_SIZE; blue++) { + color.red = cube_index_to_short[red]; + color.green = cube_index_to_short[green]; + color.blue = cube_index_to_short[blue]; + color.pixel = 0; + color.flags = 0; + color.pad = 0; + if (! XAllocColor (dpy, colormap, &color)) + goto DONE_ALLOCATE; + } + } + } + DONE_ALLOCATE: + + for (i = 0; i < ARRAY_LENGTH (colors); i++) + colors[i].pixel = i; + XQueryColors (dpy, colormap, colors, ARRAY_LENGTH (colors)); + + /* Search for nearest colors within allocated colormap. */ + for (gray = 0; gray < RAMP_SIZE; gray++) { + for (i = 0; i < 256; i++) { + distance = _color_distance (ramp_index_to_short[gray], + ramp_index_to_short[gray], + ramp_index_to_short[gray], + colors[i].red, + colors[i].green, + colors[i].blue); + if (i == 0 || distance < min_distance) { + gray_to_pseudocolor[gray] = colors[i].pixel; + min_distance = distance; + if (!min_distance) + break; + } + } + } + for (red = 0; red < CUBE_SIZE; red++) { + for (green = 0; green < CUBE_SIZE; green++) { + for (blue = 0; blue < CUBE_SIZE; blue++) { + for (i = 0; i < 256; i++) { + distance = _color_distance (cube_index_to_short[red], + cube_index_to_short[green], + cube_index_to_short[blue], + colors[i].red, + colors[i].green, + colors[i].blue); + if (i == 0 || distance < min_distance) { + info->cube_to_pseudocolor[red][green][blue] = colors[i].pixel; + min_distance = distance; + if (!min_distance) + break; + } + } + } + } + } + + for (i = 0, j = 0; i < 256; i++) { + if (j < CUBE_SIZE - 1 && (((i<<8)+i) - (int)cube_index_to_short[j]) > ((int)cube_index_to_short[j+1] - ((i<<8)+i))) + j++; + info->field8_to_cube[i] = j; + + info->dither8_to_cube[i] = ((int)i - 128) / (CUBE_SIZE - 1); + } + for (i = 0, j = 0; i < 256; i++) { + if (j < RAMP_SIZE - 1 && (((i<<8)+i) - (int)ramp_index_to_short[j]) > ((int)ramp_index_to_short[j+1] - ((i<<8)+i))) + j++; + info->gray8_to_pseudocolor[i] = gray_to_pseudocolor[j]; + } + + for (i = 0; i < 256; i++) { + info->colors[i].a = 0xff; + info->colors[i].r = colors[i].red >> 8; + info->colors[i].g = colors[i].green >> 8; + info->colors[i].b = colors[i].blue >> 8; + } + + *out = info; + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_xlib_visual_info_destroy (cairo_xlib_visual_info_t *info) +{ + /* No need for XFreeColors() whilst using DefaultColormap */ + _cairo_list_del (&info->link); + free (info); +} + +#endif /* !CAIRO_HAS_XLIB_XCB_FUNCTIONS */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib-xcb-surface.c b/local/recipes/libs/cairo/source/src/cairo-xlib-xcb-surface.c new file mode 100644 index 0000000000..4fa9f28832 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib-xcb-surface.c @@ -0,0 +1,848 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2009 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +#include "cairoint.h" + +#if CAIRO_HAS_XLIB_XCB_FUNCTIONS + +#include "cairo-xlib.h" +#include "cairo-xcb.h" + +#include "cairo-xcb-private.h" +#include "cairo-xlib-xrender-private.h" + +#include "cairo-default-context-private.h" +#include "cairo-list-inline.h" +#include "cairo-image-surface-private.h" +#include "cairo-surface-backend-private.h" + +#include +#include /* For XESetCloseDisplay */ + +struct cairo_xlib_xcb_display_t { + cairo_device_t base; + + Display *dpy; + cairo_device_t *xcb_device; + XExtCodes *codes; + + cairo_list_t link; +}; +typedef struct cairo_xlib_xcb_display_t cairo_xlib_xcb_display_t; + +/* List of all #cairo_xlib_xcb_display_t alive, + * protected by _cairo_xlib_display_mutex */ +static cairo_list_t displays; + +static cairo_surface_t * +_cairo_xlib_xcb_surface_create (void *dpy, + void *scr, + void *visual, + void *format, + cairo_surface_t *xcb); + +static cairo_surface_t * +_cairo_xlib_xcb_surface_create_similar (void *abstract_other, + cairo_content_t content, + int width, + int height) +{ + cairo_xlib_xcb_surface_t *other = abstract_other; + cairo_surface_t *xcb; + + xcb = other->xcb->base.backend->create_similar (other->xcb, content, width, height); + if (unlikely (xcb == NULL || xcb->status)) + return xcb; + + return _cairo_xlib_xcb_surface_create (other->display, other->screen, NULL, NULL, xcb); +} + +static cairo_status_t +_cairo_xlib_xcb_surface_finish (void *abstract_surface) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + cairo_status_t status; + + cairo_surface_finish (&surface->xcb->base); + status = surface->xcb->base.status; + cairo_surface_destroy (&surface->xcb->base); + surface->xcb = NULL; + + return status; +} + +static cairo_surface_t * +_cairo_xlib_xcb_surface_create_similar_image (void *abstract_other, + cairo_format_t format, + int width, + int height) +{ + cairo_xlib_xcb_surface_t *surface = abstract_other; + return cairo_surface_create_similar_image (&surface->xcb->base, format, width, height); +} + +static cairo_image_surface_t * +_cairo_xlib_xcb_surface_map_to_image (void *abstract_surface, + const cairo_rectangle_int_t *extents) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + return _cairo_surface_map_to_image (&surface->xcb->base, extents); +} + +static cairo_int_status_t +_cairo_xlib_xcb_surface_unmap (void *abstract_surface, + cairo_image_surface_t *image) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + return _cairo_surface_unmap_image (&surface->xcb->base, image); +} + +static cairo_surface_t * +_cairo_xlib_xcb_surface_source (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + return _cairo_surface_get_source (&surface->xcb->base, extents); +} + +static cairo_status_t +_cairo_xlib_xcb_surface_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + return _cairo_surface_acquire_source_image (&surface->xcb->base, + image_out, image_extra); +} + +static void +_cairo_xlib_xcb_surface_release_source_image (void *abstract_surface, + cairo_image_surface_t *image_out, + void *image_extra) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + _cairo_surface_release_source_image (&surface->xcb->base, image_out, image_extra); +} + +static cairo_bool_t +_cairo_xlib_xcb_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *extents) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + return _cairo_surface_get_extents (&surface->xcb->base, extents); +} + +static void +_cairo_xlib_xcb_surface_get_font_options (void *abstract_surface, + cairo_font_options_t *options) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + cairo_surface_get_font_options (&surface->xcb->base, options); +} + +static cairo_int_status_t +_cairo_xlib_xcb_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + return _cairo_surface_paint (&surface->xcb->base, op, source, clip); +} + +static cairo_int_status_t +_cairo_xlib_xcb_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + return _cairo_surface_mask (&surface->xcb->base, op, source, mask, clip); +} + +static cairo_int_status_t +_cairo_xlib_xcb_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + return _cairo_surface_stroke (&surface->xcb->base, + op, source, path, style, ctm, ctm_inverse, + tolerance, antialias, clip); +} + +static cairo_int_status_t +_cairo_xlib_xcb_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + return _cairo_surface_fill (&surface->xcb->base, + op, source, path, + fill_rule, tolerance, + antialias, clip); +} + +static cairo_int_status_t +_cairo_xlib_xcb_surface_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + return _cairo_surface_show_text_glyphs (&surface->xcb->base, op, source, + NULL, 0, + glyphs, num_glyphs, + NULL, 0, 0, + scaled_font, clip); +} + +static cairo_status_t +_cairo_xlib_xcb_surface_flush (void *abstract_surface, unsigned flags) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + /* We have to call cairo_surface_flush() to make sure snapshots are detached */ + return _cairo_surface_flush (&surface->xcb->base, flags); +} + +static cairo_status_t +_cairo_xlib_xcb_surface_mark_dirty (void *abstract_surface, + int x, int y, + int width, int height) +{ + cairo_xlib_xcb_surface_t *surface = abstract_surface; + cairo_surface_mark_dirty_rectangle (&surface->xcb->base, x, y, width, height); + return cairo_surface_status (&surface->xcb->base); +} + +static const cairo_surface_backend_t _cairo_xlib_xcb_surface_backend = { + CAIRO_SURFACE_TYPE_XLIB, + _cairo_xlib_xcb_surface_finish, + + _cairo_default_context_create, /* XXX */ + + _cairo_xlib_xcb_surface_create_similar, + _cairo_xlib_xcb_surface_create_similar_image, + _cairo_xlib_xcb_surface_map_to_image, + _cairo_xlib_xcb_surface_unmap, + + _cairo_xlib_xcb_surface_source, + _cairo_xlib_xcb_surface_acquire_source_image, + _cairo_xlib_xcb_surface_release_source_image, + NULL, /* snapshot */ + + NULL, /* copy_page */ + NULL, /* show_page */ + + _cairo_xlib_xcb_surface_get_extents, + _cairo_xlib_xcb_surface_get_font_options, + + _cairo_xlib_xcb_surface_flush, + _cairo_xlib_xcb_surface_mark_dirty, + + _cairo_xlib_xcb_surface_paint, + _cairo_xlib_xcb_surface_mask, + _cairo_xlib_xcb_surface_stroke, + _cairo_xlib_xcb_surface_fill, + NULL, /* fill_stroke */ + _cairo_xlib_xcb_surface_glyphs, +}; + +static void +_cairo_xlib_xcb_display_finish (void *abstract_display) +{ + cairo_xlib_xcb_display_t *display = (cairo_xlib_xcb_display_t *) abstract_display; + + CAIRO_MUTEX_LOCK (_cairo_xlib_display_mutex); + cairo_list_del (&display->link); + CAIRO_MUTEX_UNLOCK (_cairo_xlib_display_mutex); + + cairo_device_destroy (display->xcb_device); + display->xcb_device = NULL; + + XESetCloseDisplay (display->dpy, display->codes->extension, NULL); + /* Drop the reference from _cairo_xlib_xcb_device_create */ + cairo_device_destroy (&display->base); +} + +static int +_cairo_xlib_xcb_close_display(Display *dpy, XExtCodes *codes) +{ + cairo_xlib_xcb_display_t *display; + + CAIRO_MUTEX_LOCK (_cairo_xlib_display_mutex); + cairo_list_foreach_entry (display, + cairo_xlib_xcb_display_t, + &displays, + link) + { + if (display->dpy == dpy) + { + /* _cairo_xlib_xcb_display_finish will lock the mutex again + * -> deadlock (This mutex isn't recursive) */ + cairo_device_reference (&display->base); + CAIRO_MUTEX_UNLOCK (_cairo_xlib_display_mutex); + + /* Make sure the xcb and xlib-xcb devices are finished */ + cairo_device_finish (display->xcb_device); + cairo_device_finish (&display->base); + + cairo_device_destroy (&display->base); + return 0; + } + } + CAIRO_MUTEX_UNLOCK (_cairo_xlib_display_mutex); + + return 0; +} + +static const cairo_device_backend_t _cairo_xlib_xcb_device_backend = { + CAIRO_DEVICE_TYPE_XLIB, + + NULL, + NULL, + + NULL, /* flush */ + _cairo_xlib_xcb_display_finish, + free, /* destroy */ +}; + +static cairo_device_t * +_cairo_xlib_xcb_device_create (Display *dpy, cairo_device_t *xcb_device) +{ + cairo_xlib_xcb_display_t *display = NULL; + cairo_device_t *device; + + if (xcb_device == NULL) + return NULL; + + CAIRO_MUTEX_INITIALIZE (); + + CAIRO_MUTEX_LOCK (_cairo_xlib_display_mutex); + if (displays.next == NULL) { + cairo_list_init (&displays); + } + + cairo_list_foreach_entry (display, + cairo_xlib_xcb_display_t, + &displays, + link) + { + if (display->dpy == dpy) { + /* Maintain MRU order. */ + if (displays.next != &display->link) + cairo_list_move (&display->link, &displays); + + /* Grab a reference for our caller */ + device = cairo_device_reference (&display->base); + assert (display->xcb_device == xcb_device); + goto unlock; + } + } + + display = _cairo_malloc (sizeof (cairo_xlib_xcb_display_t)); + if (unlikely (display == NULL)) { + device = _cairo_device_create_in_error (CAIRO_STATUS_NO_MEMORY); + goto unlock; + } + + display->codes = XAddExtension (dpy); + if (unlikely (display->codes == NULL)) { + device = _cairo_device_create_in_error (CAIRO_STATUS_NO_MEMORY); + free (display); + goto unlock; + } + + _cairo_device_init (&display->base, &_cairo_xlib_xcb_device_backend); + + XESetCloseDisplay (dpy, display->codes->extension, _cairo_xlib_xcb_close_display); + /* Add a reference for _cairo_xlib_xcb_display_finish. This basically means + * that the device's reference count never drops to zero + * as long as our Display* is alive. We need this because there is no + * "XDelExtension" to undo XAddExtension and having lots of registered + * extensions slows down libX11. */ + cairo_device_reference (&display->base); + + display->dpy = dpy; + display->xcb_device = cairo_device_reference(xcb_device); + + cairo_list_add (&display->link, &displays); + device = &display->base; + +unlock: + CAIRO_MUTEX_UNLOCK (_cairo_xlib_display_mutex); + + return device; +} + +static cairo_surface_t * +_cairo_xlib_xcb_surface_create (void *dpy, + void *scr, + void *visual, + void *format, + cairo_surface_t *xcb) +{ + cairo_xlib_xcb_surface_t *surface; + + if (unlikely (xcb->status)) + return xcb; + + surface = _cairo_malloc (sizeof (*surface)); + if (unlikely (surface == NULL)) { + cairo_surface_destroy (xcb); + return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); + } + + _cairo_surface_init (&surface->base, + &_cairo_xlib_xcb_surface_backend, + _cairo_xlib_xcb_device_create (dpy, xcb->device), + xcb->content, + FALSE); /* is_vector */ + + /* _cairo_surface_init() got another reference to the device, drop ours */ + cairo_device_destroy (surface->base.device); + + surface->display = dpy; + surface->screen = scr; + surface->visual = visual; + surface->format = format; + surface->xcb = (cairo_xcb_surface_t *) xcb; + + return &surface->base; +} + +static Screen * +_cairo_xlib_screen_from_visual (Display *dpy, Visual *visual) +{ + int s, d, v; + + for (s = 0; s < ScreenCount (dpy); s++) { + Screen *screen; + + screen = ScreenOfDisplay (dpy, s); + if (visual == DefaultVisualOfScreen (screen)) + return screen; + + for (d = 0; d < screen->ndepths; d++) { + Depth *depth; + + depth = &screen->depths[d]; + for (v = 0; v < depth->nvisuals; v++) + if (visual == &depth->visuals[v]) + return screen; + } + } + + return NULL; +} + +cairo_surface_t * +cairo_xlib_surface_create (Display *dpy, + Drawable drawable, + Visual *visual, + int width, + int height) +{ + Screen *scr; + xcb_visualtype_t xcb_visual; + + scr = _cairo_xlib_screen_from_visual (dpy, visual); + if (scr == NULL) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_VISUAL)); + + xcb_visual.visual_id = visual->visualid; +#if defined(__cplusplus) || defined(c_plusplus) + xcb_visual._class = visual->c_class; +#else + xcb_visual._class = visual->class; +#endif + xcb_visual.bits_per_rgb_value = visual->bits_per_rgb; + xcb_visual.colormap_entries = visual->map_entries; + xcb_visual.red_mask = visual->red_mask; + xcb_visual.green_mask = visual->green_mask; + xcb_visual.blue_mask = visual->blue_mask; + + return _cairo_xlib_xcb_surface_create (dpy, scr, visual, NULL, + cairo_xcb_surface_create (XGetXCBConnection (dpy), + drawable, + &xcb_visual, + width, height)); +} + +static xcb_screen_t * +_cairo_xcb_screen_from_root (xcb_connection_t *connection, + xcb_window_t id) +{ + xcb_screen_iterator_t s; + + s = xcb_setup_roots_iterator (xcb_get_setup (connection)); + for (; s.rem; xcb_screen_next (&s)) { + if (s.data->root == id) + return s.data; + } + + return NULL; +} + +cairo_surface_t * +cairo_xlib_surface_create_for_bitmap (Display *dpy, + Pixmap bitmap, + Screen *scr, + int width, + int height) +{ + xcb_connection_t *connection = XGetXCBConnection (dpy); + xcb_screen_t *screen = _cairo_xcb_screen_from_root (connection, (xcb_window_t) scr->root); + return _cairo_xlib_xcb_surface_create (dpy, scr, NULL, NULL, + cairo_xcb_surface_create_for_bitmap (connection, + screen, + bitmap, + width, height)); +} + +#if CAIRO_HAS_XLIB_XRENDER_SURFACE +cairo_surface_t * +cairo_xlib_surface_create_with_xrender_format (Display *dpy, + Drawable drawable, + Screen *scr, + XRenderPictFormat *format, + int width, + int height) +{ + xcb_render_pictforminfo_t xcb_format; + xcb_connection_t *connection; + xcb_screen_t *screen; + + xcb_format.id = format->id; + xcb_format.type = format->type; + xcb_format.depth = format->depth; + xcb_format.direct.red_shift = format->direct.red; + xcb_format.direct.red_mask = format->direct.redMask; + xcb_format.direct.green_shift = format->direct.green; + xcb_format.direct.green_mask = format->direct.greenMask; + xcb_format.direct.blue_shift = format->direct.blue; + xcb_format.direct.blue_mask = format->direct.blueMask; + xcb_format.direct.alpha_shift = format->direct.alpha; + xcb_format.direct.alpha_mask = format->direct.alphaMask; + xcb_format.colormap = format->colormap; + + connection = XGetXCBConnection (dpy); + screen = _cairo_xcb_screen_from_root (connection, (xcb_window_t) scr->root); + + return _cairo_xlib_xcb_surface_create (dpy, scr, NULL, format, + cairo_xcb_surface_create_with_xrender_format (connection, screen, + drawable, + &xcb_format, + width, height)); +} + +XRenderPictFormat * +cairo_xlib_surface_get_xrender_format (cairo_surface_t *surface) +{ + cairo_xlib_xcb_surface_t *xlib_surface = (cairo_xlib_xcb_surface_t *) surface; + + /* Throw an error for a non-xlib surface */ + if (surface->type != CAIRO_SURFACE_TYPE_XLIB) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return NULL; + } + + return xlib_surface->format; +} +#endif + +void +cairo_xlib_surface_set_size (cairo_surface_t *abstract_surface, + int width, + int height) +{ + cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface; + cairo_status_t status; + + if (unlikely (abstract_surface->status)) + return; + if (unlikely (abstract_surface->finished)) { + status = _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return; + } + + if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) { + status = _cairo_surface_set_error (abstract_surface, + CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return; + } + + cairo_xcb_surface_set_size (&surface->xcb->base, width, height); + if (unlikely (surface->xcb->base.status)) { + status = _cairo_surface_set_error (abstract_surface, + _cairo_error (surface->xcb->base.status)); + } +} + +void +cairo_xlib_surface_set_drawable (cairo_surface_t *abstract_surface, + Drawable drawable, + int width, + int height) +{ + cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *)abstract_surface; + cairo_status_t status; + + if (unlikely (abstract_surface->status)) + return; + if (unlikely (abstract_surface->finished)) { + status = _cairo_surface_set_error (abstract_surface, + _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + return; + } + + if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) { + status = _cairo_surface_set_error (abstract_surface, + CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return; + } + + cairo_xcb_surface_set_drawable (&surface->xcb->base, drawable, width, height); + if (unlikely (surface->xcb->base.status)) { + status = _cairo_surface_set_error (abstract_surface, + _cairo_error (surface->xcb->base.status)); + } +} + +Display * +cairo_xlib_surface_get_display (cairo_surface_t *abstract_surface) +{ + cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface; + + if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return NULL; + } + + return surface->display; +} + +Drawable +cairo_xlib_surface_get_drawable (cairo_surface_t *abstract_surface) +{ + cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface; + + if (unlikely (abstract_surface->finished)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_FINISHED); + return 0; + } + if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + /* This can happen when e.g. create_similar falls back to an image surface + * because we don't have the RENDER extension. */ + if (surface->xcb->base.type != CAIRO_SURFACE_TYPE_XCB) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + + return surface->xcb->drawable; +} + +Screen * +cairo_xlib_surface_get_screen (cairo_surface_t *abstract_surface) +{ + cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface; + + if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return NULL; + } + + return surface->screen; +} + +Visual * +cairo_xlib_surface_get_visual (cairo_surface_t *abstract_surface) +{ + cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface; + + if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return NULL; + } + + return surface->visual; +} + +int +cairo_xlib_surface_get_depth (cairo_surface_t *abstract_surface) +{ + cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface; + + if (unlikely (abstract_surface->finished)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_FINISHED); + return 0; + } + if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + /* This can happen when e.g. create_similar falls back to an image surface + * because we don't have the RENDER extension. */ + if (surface->xcb->base.type != CAIRO_SURFACE_TYPE_XCB) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + + return surface->xcb->depth; +} + +int +cairo_xlib_surface_get_width (cairo_surface_t *abstract_surface) +{ + cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface; + + if (unlikely (abstract_surface->finished)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_FINISHED); + return 0; + } + if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + /* This can happen when e.g. create_similar falls back to an image surface + * because we don't have the RENDER extension. */ + if (surface->xcb->base.type != CAIRO_SURFACE_TYPE_XCB) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + + return surface->xcb->width; +} + +int +cairo_xlib_surface_get_height (cairo_surface_t *abstract_surface) +{ + cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface; + + if (unlikely (abstract_surface->finished)) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_FINISHED); + return 0; + } + if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + /* This can happen when e.g. create_similar falls back to an image surface + * because we don't have the RENDER extension. */ + if (surface->xcb->base.type != CAIRO_SURFACE_TYPE_XCB) { + _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + return 0; + } + + return surface->xcb->height; +} + +void +cairo_xlib_device_debug_cap_xrender_version (cairo_device_t *device, + int major, int minor) +{ + cairo_xlib_xcb_display_t *display = (cairo_xlib_xcb_display_t *) device; + + if (device == NULL || device->status) + return; + + if (device->backend->type != CAIRO_DEVICE_TYPE_XLIB) + return; + + cairo_xcb_device_debug_cap_xrender_version (display->xcb_device, + major, minor); +} + +void +cairo_xlib_device_debug_set_precision (cairo_device_t *device, + int precision) +{ + cairo_xlib_xcb_display_t *display = (cairo_xlib_xcb_display_t *) device; + + if (device == NULL || device->status) + return; + if (device->backend->type != CAIRO_DEVICE_TYPE_XLIB) { + cairo_status_t status; + + status = _cairo_device_set_error (device, CAIRO_STATUS_DEVICE_TYPE_MISMATCH); + (void) status; + return; + } + + cairo_xcb_device_debug_set_precision (display->xcb_device, precision); +} + +int +cairo_xlib_device_debug_get_precision (cairo_device_t *device) +{ + cairo_xlib_xcb_display_t *display = (cairo_xlib_xcb_display_t *) device; + + if (device == NULL || device->status) + return -1; + if (device->backend->type != CAIRO_DEVICE_TYPE_XLIB) { + cairo_status_t status; + + status = _cairo_device_set_error (device, CAIRO_STATUS_DEVICE_TYPE_MISMATCH); + (void) status; + return -1; + } + + return cairo_xcb_device_debug_get_precision (display->xcb_device); +} + +#endif /* CAIRO_HAS_XLIB_XCB_FUNCTIONS */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib-xrender-private.h b/local/recipes/libs/cairo/source/src/cairo-xlib-xrender-private.h new file mode 100644 index 0000000000..90769467b2 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib-xrender-private.h @@ -0,0 +1,1173 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2007 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + */ + +#ifndef CAIRO_XLIB_XRENDER_PRIVATE_H +#define CAIRO_XLIB_XRENDER_PRIVATE_H + +#include "cairo-features.h" +#include "cairo-compiler-private.h" + +#include + +/* These prototypes are used when defining interfaces missing from the + * render headers. As it happens, it is the case that all libxrender + * functions take a pointer as first argument. */ + +__attribute__((__unused__)) static void _void_consume (void *p, ...) { } +__attribute__((__unused__)) static void * _voidp_consume (void *p, ...) { return (void *)0; } +__attribute__((__unused__)) static int _int_consume (void *p, ...) { return 0; } +__attribute__((__unused__)) static void _void_consume_free (Display *p, XID n) { } + + +#if CAIRO_HAS_XLIB_XRENDER_SURFACE + +#include "cairo-xlib-xrender.h" + +#include +#include + +/* We require Render >= 0.6. The following defines were only added in + * 0.10. Make sure they are defined. + */ + +/* Filters included in 0.10 */ +#ifndef FilterConvolution +#define FilterConvolution "convolution" +#endif + +/* Extended repeat attributes included in 0.10 */ +#ifndef RepeatNone +#define RepeatNone 0 +#define RepeatNormal 1 +#define RepeatPad 2 +#define RepeatReflect 3 +#endif + + +#ifndef PictOptBlendMinimum +/* + * Operators only available in version 0.11 + */ +#define PictOpBlendMinimum 0x30 +#define PictOpMultiply 0x30 +#define PictOpScreen 0x31 +#define PictOpOverlay 0x32 +#define PictOpDarken 0x33 +#define PictOpLighten 0x34 +#define PictOpColorDodge 0x35 +#define PictOpColorBurn 0x36 +#define PictOpHardLight 0x37 +#define PictOpSoftLight 0x38 +#define PictOpDifference 0x39 +#define PictOpExclusion 0x3a +#define PictOpHSLHue 0x3b +#define PictOpHSLSaturation 0x3c +#define PictOpHSLColor 0x3d +#define PictOpHSLLuminosity 0x3e +#define PictOpBlendMaximum 0x3e +#endif + +#if !HAVE_XRENDERCREATESOLIDFILL +#define XRenderCreateSolidFill _int_consume +#endif + +#if !HAVE_XRENDERCREATELINEARGRADIENT +#define XRenderCreateLinearGradient _int_consume + +typedef struct _XLinearGradient { + XPointFixed p1; + XPointFixed p2; +} XLinearGradient; +#endif + +#if !HAVE_XRENDERCREATERADIALGRADIENT +#define XRenderCreateRadialGradient _int_consume + +typedef struct _XCircle { + XFixed x; + XFixed y; + XFixed radius; +} XCircle; +typedef struct _XRadialGradient { + XCircle inner; + XCircle outer; +} XRadialGradient; +#endif + +#if !HAVE_XRENDERCREATECONICALGRADIENT +#define XRenderCreateConicalGradient _int_consume + +typedef struct _XConicalGradient { + XPointFixed center; + XFixed angle; /* in degrees */ +} XConicalGradient; +#endif + + +#else /* !CAIRO_HAS_XLIB_XRENDER_SURFACE */ + +/* Provide dummy symbols and macros to get it compile and take the fallback + * route, just like as if Xrender is not available in the server at run-time. */ + + +/* Functions */ + +#define XRenderQueryExtension _int_consume +#define XRenderQueryVersion _int_consume +#define XRenderQueryFormats _int_consume +#define XRenderQuerySubpixelOrder _int_consume +#define XRenderSetSubpixelOrder _int_consume +#define XRenderFindVisualFormat _voidp_consume +#define XRenderFindFormat _voidp_consume +#define XRenderFindStandardFormat _voidp_consume +#define XRenderQueryPictIndexValues _voidp_consume +#define XRenderCreatePicture _int_consume +#define XRenderChangePicture _void_consume +#define XRenderSetPictureClipRectangles _void_consume +#define XRenderSetPictureClipRegion _void_consume +#define XRenderSetPictureTransform _void_consume +#define XRenderFreePicture _void_consume_free +#define XRenderComposite _void_consume +#define XRenderCreateGlyphSet _int_consume +#define XRenderReferenceGlyphSet _int_consume +#define XRenderFreeGlyphSet _void_consume_free +#define XRenderAddGlyphs _void_consume +#define XRenderFreeGlyphs _void_consume +#define XRenderCompositeString8 _void_consume +#define XRenderCompositeString16 _void_consume +#define XRenderCompositeString32 _void_consume +#define XRenderCompositeText8 (cairo_xrender_composite_text_func_t) _void_consume +#define XRenderCompositeText16 _void_consume +#define XRenderCompositeText32 _void_consume +#define XRenderFillRectangle _void_consume +#define XRenderFillRectangles _void_consume +#define XRenderCompositeTrapezoids _void_consume +#define XRenderCompositeTriangles _void_consume +#define XRenderCompositeTriStrip _void_consume +#define XRenderCompositeTriFan _void_consume +#define XRenderCompositeDoublePoly _void_consume +#define XRenderParseColor _int_consume +#define XRenderCreateCursor _int_consume +#define XRenderQueryFilters _voidp_consume +#define XRenderSetPictureFilter _void_consume +#define XRenderCreateAnimCursor _int_consume +#define XRenderAddTraps _void_consume +#define XRenderCreateSolidFill _int_consume +#define XRenderCreateLinearGradient _int_consume +#define XRenderCreateRadialGradient _int_consume +#define XRenderCreateConicalGradient _int_consume + +#define cairo_xlib_surface_create_with_xrender_format _voidp_consume + + + +/* The rest of this file is copied from various Xrender header files, with + * the following copyright/license information: + * + * Copyright © 2000 SuSE, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of SuSE not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. SuSE makes no representations about the + * suitability of this software for any purpose. It is provided "as is" + * without express or implied warranty. + * + * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE + * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Keith Packard, SuSE, Inc. + */ + + +/* Copied from X11/extensions/render.h */ + +typedef unsigned long Glyph; +typedef unsigned long GlyphSet; +typedef unsigned long Picture; +typedef unsigned long PictFormat; + +#define BadPictFormat 0 +#define BadPicture 1 +#define BadPictOp 2 +#define BadGlyphSet 3 +#define BadGlyph 4 +#define RenderNumberErrors (BadGlyph+1) + +#define PictTypeIndexed 0 +#define PictTypeDirect 1 + +#define PictOpMinimum 0 +#define PictOpClear 0 +#define PictOpSrc 1 +#define PictOpDst 2 +#define PictOpOver 3 +#define PictOpOverReverse 4 +#define PictOpIn 5 +#define PictOpInReverse 6 +#define PictOpOut 7 +#define PictOpOutReverse 8 +#define PictOpAtop 9 +#define PictOpAtopReverse 10 +#define PictOpXor 11 +#define PictOpAdd 12 +#define PictOpSaturate 13 +#define PictOpMaximum 13 + +/* + * Operators only available in version 0.2 + */ +#define PictOpDisjointMinimum 0x10 +#define PictOpDisjointClear 0x10 +#define PictOpDisjointSrc 0x11 +#define PictOpDisjointDst 0x12 +#define PictOpDisjointOver 0x13 +#define PictOpDisjointOverReverse 0x14 +#define PictOpDisjointIn 0x15 +#define PictOpDisjointInReverse 0x16 +#define PictOpDisjointOut 0x17 +#define PictOpDisjointOutReverse 0x18 +#define PictOpDisjointAtop 0x19 +#define PictOpDisjointAtopReverse 0x1a +#define PictOpDisjointXor 0x1b +#define PictOpDisjointMaximum 0x1b + +#define PictOpConjointMinimum 0x20 +#define PictOpConjointClear 0x20 +#define PictOpConjointSrc 0x21 +#define PictOpConjointDst 0x22 +#define PictOpConjointOver 0x23 +#define PictOpConjointOverReverse 0x24 +#define PictOpConjointIn 0x25 +#define PictOpConjointInReverse 0x26 +#define PictOpConjointOut 0x27 +#define PictOpConjointOutReverse 0x28 +#define PictOpConjointAtop 0x29 +#define PictOpConjointAtopReverse 0x2a +#define PictOpConjointXor 0x2b +#define PictOpConjointMaximum 0x2b + +/* + * Operators only available in version 0.11 + */ +#define PictOpBlendMinimum 0x30 +#define PictOpMultiply 0x30 +#define PictOpScreen 0x31 +#define PictOpOverlay 0x32 +#define PictOpDarken 0x33 +#define PictOpLighten 0x34 +#define PictOpColorDodge 0x35 +#define PictOpColorBurn 0x36 +#define PictOpHardLight 0x37 +#define PictOpSoftLight 0x38 +#define PictOpDifference 0x39 +#define PictOpExclusion 0x3a +#define PictOpHSLHue 0x3b +#define PictOpHSLSaturation 0x3c +#define PictOpHSLColor 0x3d +#define PictOpHSLLuminosity 0x3e +#define PictOpBlendMaximum 0x3e + +#define PolyEdgeSharp 0 +#define PolyEdgeSmooth 1 + +#define PolyModePrecise 0 +#define PolyModeImprecise 1 + +#define CPRepeat (1 << 0) +#define CPAlphaMap (1 << 1) +#define CPAlphaXOrigin (1 << 2) +#define CPAlphaYOrigin (1 << 3) +#define CPClipXOrigin (1 << 4) +#define CPClipYOrigin (1 << 5) +#define CPClipMask (1 << 6) +#define CPGraphicsExposure (1 << 7) +#define CPSubwindowMode (1 << 8) +#define CPPolyEdge (1 << 9) +#define CPPolyMode (1 << 10) +#define CPDither (1 << 11) +#define CPComponentAlpha (1 << 12) +#define CPLastBit 12 + +/* Filters included in 0.6 */ +#define FilterNearest "nearest" +#define FilterBilinear "bilinear" +/* Filters included in 0.10 */ +#define FilterConvolution "convolution" + +#define FilterFast "fast" +#define FilterGood "good" +#define FilterBest "best" + +#define FilterAliasNone -1 + +/* Subpixel orders included in 0.6 */ +#define SubPixelUnknown 0 +#define SubPixelHorizontalRGB 1 +#define SubPixelHorizontalBGR 2 +#define SubPixelVerticalRGB 3 +#define SubPixelVerticalBGR 4 +#define SubPixelNone 5 + +/* Extended repeat attributes included in 0.10 */ +#define RepeatNone 0 +#define RepeatNormal 1 +#define RepeatPad 2 +#define RepeatReflect 3 + + + +/* Copied from X11/extensions/Xrender.h */ + +typedef struct { + short red; + short redMask; + short green; + short greenMask; + short blue; + short blueMask; + short alpha; + short alphaMask; +} XRenderDirectFormat; + +typedef struct { + PictFormat id; + int type; + int depth; + XRenderDirectFormat direct; + Colormap colormap; +} XRenderPictFormat; + +#define PictFormatID (1 << 0) +#define PictFormatType (1 << 1) +#define PictFormatDepth (1 << 2) +#define PictFormatRed (1 << 3) +#define PictFormatRedMask (1 << 4) +#define PictFormatGreen (1 << 5) +#define PictFormatGreenMask (1 << 6) +#define PictFormatBlue (1 << 7) +#define PictFormatBlueMask (1 << 8) +#define PictFormatAlpha (1 << 9) +#define PictFormatAlphaMask (1 << 10) +#define PictFormatColormap (1 << 11) + +typedef struct _XRenderPictureAttributes { + int repeat; + Picture alpha_map; + int alpha_x_origin; + int alpha_y_origin; + int clip_x_origin; + int clip_y_origin; + Pixmap clip_mask; + Bool graphics_exposures; + int subwindow_mode; + int poly_edge; + int poly_mode; + Atom dither; + Bool component_alpha; +} XRenderPictureAttributes; + +typedef struct { + unsigned short red; + unsigned short green; + unsigned short blue; + unsigned short alpha; +} XRenderColor; + +typedef struct _XGlyphInfo { + unsigned short width; + unsigned short height; + short x; + short y; + short xOff; + short yOff; +} XGlyphInfo; + +typedef struct _XGlyphElt8 { + GlyphSet glyphset; + _Xconst char *chars; + int nchars; + int xOff; + int yOff; +} XGlyphElt8; + +typedef struct _XGlyphElt16 { + GlyphSet glyphset; + _Xconst unsigned short *chars; + int nchars; + int xOff; + int yOff; +} XGlyphElt16; + +typedef struct _XGlyphElt32 { + GlyphSet glyphset; + _Xconst unsigned int *chars; + int nchars; + int xOff; + int yOff; +} XGlyphElt32; + +typedef double XDouble; + +typedef struct _XPointDouble { + XDouble x, y; +} XPointDouble; + +#define XDoubleToFixed(f) ((XFixed) ((f) * 65536)) +#define XFixedToDouble(f) (((XDouble) (f)) / 65536) + +typedef int XFixed; + +typedef struct _XPointFixed { + XFixed x, y; +} XPointFixed; + +typedef struct _XLineFixed { + XPointFixed p1, p2; +} XLineFixed; + +typedef struct _XTriangle { + XPointFixed p1, p2, p3; +} XTriangle; + +typedef struct _XCircle { + XFixed x; + XFixed y; + XFixed radius; +} XCircle; + +typedef struct _XTrapezoid { + XFixed top, bottom; + XLineFixed left, right; +} XTrapezoid; + +typedef struct _XTransform { + XFixed matrix[3][3]; +} XTransform; + +typedef struct _XFilters { + int nfilter; + char **filter; + int nalias; + short *alias; +} XFilters; + +typedef struct _XIndexValue { + unsigned long pixel; + unsigned short red, green, blue, alpha; +} XIndexValue; + +typedef struct _XAnimCursor { + Cursor cursor; + unsigned long delay; +} XAnimCursor; + +typedef struct _XSpanFix { + XFixed left, right, y; +} XSpanFix; + +typedef struct _XTrap { + XSpanFix top, bottom; +} XTrap; + +typedef struct _XLinearGradient { + XPointFixed p1; + XPointFixed p2; +} XLinearGradient; + +typedef struct _XRadialGradient { + XCircle inner; + XCircle outer; +} XRadialGradient; + +typedef struct _XConicalGradient { + XPointFixed center; + XFixed angle; /* in degrees */ +} XConicalGradient; + +#define PictStandardARGB32 0 +#define PictStandardRGB24 1 +#define PictStandardA8 2 +#define PictStandardA4 3 +#define PictStandardA1 4 +#define PictStandardNUM 5 + + + +/* Copied from X11/extensions/renderproto.h */ + +#include + +#define Window CARD32 +#define Drawable CARD32 +#define Font CARD32 +#define Pixmap CARD32 +#define Cursor CARD32 +#define Colormap CARD32 +#define GContext CARD32 +#define Atom CARD32 +#define VisualID CARD32 +#define Time CARD32 +#define KeyCode CARD8 +#define KeySym CARD32 + +#define Picture CARD32 +#define PictFormat CARD32 +#define Fixed INT32 +#define Glyphset CARD32 +#define Glyph CARD32 + +/* + * data structures + */ + +typedef struct { + CARD16 red B16; + CARD16 redMask B16; + CARD16 green B16; + CARD16 greenMask B16; + CARD16 blue B16; + CARD16 blueMask B16; + CARD16 alpha B16; + CARD16 alphaMask B16; +} xDirectFormat; + +#define sz_xDirectFormat 16 + +typedef struct { + PictFormat id B32; + CARD8 type; + CARD8 depth; + CARD16 pad1 B16; + xDirectFormat direct; + Colormap colormap; +} xPictFormInfo; + +#define sz_xPictFormInfo 28 + +typedef struct { + VisualID visual; + PictFormat format; +} xPictVisual; + +#define sz_xPictVisual 8 + +typedef struct { + CARD8 depth; + CARD8 pad1; + CARD16 nPictVisuals B16; + CARD32 pad2 B32; +} xPictDepth; + +#define sz_xPictDepth 8 + +typedef struct { + CARD32 nDepth B32; + PictFormat fallback B32; +} xPictScreen; + +#define sz_xPictScreen 8 + +typedef struct { + CARD32 pixel B32; + CARD16 red B16; + CARD16 green B16; + CARD16 blue B16; + CARD16 alpha B16; +} xIndexValue; + +#define sz_xIndexValue 12 + +typedef struct { + CARD16 red B16; + CARD16 green B16; + CARD16 blue B16; + CARD16 alpha B16; +} xRenderColor; + +#define sz_xRenderColor 8 + +typedef struct { + Fixed x B32; + Fixed y B32; +} xPointFixed; + +#define sz_xPointFixed 8 + +typedef struct { + xPointFixed p1; + xPointFixed p2; +} xLineFixed; + +#define sz_xLineFixed 16 + +typedef struct { + xPointFixed p1, p2, p3; +} xTriangle; + +#define sz_xTriangle 24 + +typedef struct { + Fixed top B32; + Fixed bottom B32; + xLineFixed left; + xLineFixed right; +} xTrapezoid; + +#define sz_xTrapezoid 40 + +typedef struct { + CARD16 width B16; + CARD16 height B16; + INT16 x B16; + INT16 y B16; + INT16 xOff B16; + INT16 yOff B16; +} xGlyphInfo; + +#define sz_xGlyphInfo 12 + +typedef struct { + CARD8 len; + CARD8 pad1; + CARD16 pad2; + INT16 deltax; + INT16 deltay; +} xGlyphElt; + +#define sz_xGlyphElt 8 + +typedef struct { + Fixed l, r, y; +} xSpanFix; + +#define sz_xSpanFix 12 + +typedef struct { + xSpanFix top, bot; +} xTrap; + +#define sz_xTrap 24 + +/* + * requests and replies + */ +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + CARD32 majorVersion B32; + CARD32 minorVersion B32; +} xRenderQueryVersionReq; + +#define sz_xRenderQueryVersionReq 12 + +typedef struct { + BYTE type; /* X_Reply */ + BYTE pad1; + CARD16 sequenceNumber B16; + CARD32 length B32; + CARD32 majorVersion B32; + CARD32 minorVersion B32; + CARD32 pad2 B32; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; +} xRenderQueryVersionReply; + +#define sz_xRenderQueryVersionReply 32 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; +} xRenderQueryPictFormatsReq; + +#define sz_xRenderQueryPictFormatsReq 4 + +typedef struct { + BYTE type; /* X_Reply */ + BYTE pad1; + CARD16 sequenceNumber B16; + CARD32 length B32; + CARD32 numFormats B32; + CARD32 numScreens B32; + CARD32 numDepths B32; + CARD32 numVisuals B32; + CARD32 numSubpixel B32; /* Version 0.6 */ + CARD32 pad5 B32; +} xRenderQueryPictFormatsReply; + +#define sz_xRenderQueryPictFormatsReply 32 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + PictFormat format B32; +} xRenderQueryPictIndexValuesReq; + +#define sz_xRenderQueryPictIndexValuesReq 8 + +typedef struct { + BYTE type; /* X_Reply */ + BYTE pad1; + CARD16 sequenceNumber B16; + CARD32 length B32; + CARD32 numIndexValues; + CARD32 pad2 B32; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; + CARD32 pad6 B32; +} xRenderQueryPictIndexValuesReply; + +#define sz_xRenderQueryPictIndexValuesReply 32 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Picture pid B32; + Drawable drawable B32; + PictFormat format B32; + CARD32 mask B32; +} xRenderCreatePictureReq; + +#define sz_xRenderCreatePictureReq 20 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Picture picture B32; + CARD32 mask B32; +} xRenderChangePictureReq; + +#define sz_xRenderChangePictureReq 12 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Picture picture B32; + INT16 xOrigin B16; + INT16 yOrigin B16; +} xRenderSetPictureClipRectanglesReq; + +#define sz_xRenderSetPictureClipRectanglesReq 12 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Picture picture B32; +} xRenderFreePictureReq; + +#define sz_xRenderFreePictureReq 8 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + CARD8 op; + CARD8 pad1; + CARD16 pad2 B16; + Picture src B32; + Picture mask B32; + Picture dst B32; + INT16 xSrc B16; + INT16 ySrc B16; + INT16 xMask B16; + INT16 yMask B16; + INT16 xDst B16; + INT16 yDst B16; + CARD16 width B16; + CARD16 height B16; +} xRenderCompositeReq; + +#define sz_xRenderCompositeReq 36 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Picture src B32; + Picture dst B32; + CARD32 colorScale B32; + CARD32 alphaScale B32; + INT16 xSrc B16; + INT16 ySrc B16; + INT16 xDst B16; + INT16 yDst B16; + CARD16 width B16; + CARD16 height B16; +} xRenderScaleReq; + +#define sz_xRenderScaleReq 32 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + CARD8 op; + CARD8 pad1; + CARD16 pad2 B16; + Picture src B32; + Picture dst B32; + PictFormat maskFormat B32; + INT16 xSrc B16; + INT16 ySrc B16; +} xRenderTrapezoidsReq; + +#define sz_xRenderTrapezoidsReq 24 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + CARD8 op; + CARD8 pad1; + CARD16 pad2 B16; + Picture src B32; + Picture dst B32; + PictFormat maskFormat B32; + INT16 xSrc B16; + INT16 ySrc B16; +} xRenderTrianglesReq; + +#define sz_xRenderTrianglesReq 24 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + CARD8 op; + CARD8 pad1; + CARD16 pad2 B16; + Picture src B32; + Picture dst B32; + PictFormat maskFormat B32; + INT16 xSrc B16; + INT16 ySrc B16; +} xRenderTriStripReq; + +#define sz_xRenderTriStripReq 24 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + CARD8 op; + CARD8 pad1; + CARD16 pad2 B16; + Picture src B32; + Picture dst B32; + PictFormat maskFormat B32; + INT16 xSrc B16; + INT16 ySrc B16; +} xRenderTriFanReq; + +#define sz_xRenderTriFanReq 24 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Glyphset gsid B32; + PictFormat format B32; +} xRenderCreateGlyphSetReq; + +#define sz_xRenderCreateGlyphSetReq 12 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Glyphset gsid B32; + Glyphset existing B32; +} xRenderReferenceGlyphSetReq; + +#define sz_xRenderReferenceGlyphSetReq 24 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Glyphset glyphset B32; +} xRenderFreeGlyphSetReq; + +#define sz_xRenderFreeGlyphSetReq 8 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Glyphset glyphset B32; + CARD32 nglyphs; +} xRenderAddGlyphsReq; + +#define sz_xRenderAddGlyphsReq 12 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Glyphset glyphset B32; +} xRenderFreeGlyphsReq; + +#define sz_xRenderFreeGlyphsReq 8 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + CARD8 op; + CARD8 pad1; + CARD16 pad2 B16; + Picture src B32; + Picture dst B32; + PictFormat maskFormat B32; + Glyphset glyphset B32; + INT16 xSrc B16; + INT16 ySrc B16; +} xRenderCompositeGlyphsReq, xRenderCompositeGlyphs8Req, +xRenderCompositeGlyphs16Req, xRenderCompositeGlyphs32Req; + +#define sz_xRenderCompositeGlyphs8Req 28 +#define sz_xRenderCompositeGlyphs16Req 28 +#define sz_xRenderCompositeGlyphs32Req 28 + +/* 0.1 and higher */ + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + CARD8 op; + CARD8 pad1; + CARD16 pad2 B16; + Picture dst B32; + xRenderColor color; +} xRenderFillRectanglesReq; + +#define sz_xRenderFillRectanglesReq 20 + +/* 0.5 and higher */ + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Cursor cid B32; + Picture src B32; + CARD16 x B16; + CARD16 y B16; +} xRenderCreateCursorReq; + +#define sz_xRenderCreateCursorReq 16 + +/* 0.6 and higher */ + +/* + * This can't use an array because 32-bit values may be in bitfields + */ +typedef struct { + Fixed matrix11 B32; + Fixed matrix12 B32; + Fixed matrix13 B32; + Fixed matrix21 B32; + Fixed matrix22 B32; + Fixed matrix23 B32; + Fixed matrix31 B32; + Fixed matrix32 B32; + Fixed matrix33 B32; +} xRenderTransform; + +#define sz_xRenderTransform 36 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Picture picture B32; + xRenderTransform transform; +} xRenderSetPictureTransformReq; + +#define sz_xRenderSetPictureTransformReq 44 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Drawable drawable B32; +} xRenderQueryFiltersReq; + +#define sz_xRenderQueryFiltersReq 8 + +typedef struct { + BYTE type; /* X_Reply */ + BYTE pad1; + CARD16 sequenceNumber B16; + CARD32 length B32; + CARD32 numAliases B32; /* LISTofCARD16 */ + CARD32 numFilters B32; /* LISTofSTRING8 */ + CARD32 pad2 B32; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; +} xRenderQueryFiltersReply; + +#define sz_xRenderQueryFiltersReply 32 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Picture picture B32; + CARD16 nbytes B16; /* number of bytes in name */ + CARD16 pad B16; +} xRenderSetPictureFilterReq; + +#define sz_xRenderSetPictureFilterReq 12 + +/* 0.8 and higher */ + +typedef struct { + Cursor cursor B32; + CARD32 delay B32; +} xAnimCursorElt; + +#define sz_xAnimCursorElt 8 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Cursor cid B32; +} xRenderCreateAnimCursorReq; + +#define sz_xRenderCreateAnimCursorReq 8 + +/* 0.9 and higher */ + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Picture picture; + INT16 xOff B16; + INT16 yOff B16; +} xRenderAddTrapsReq; + +#define sz_xRenderAddTrapsReq 12 + +/* 0.10 and higher */ + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Picture pid B32; + xRenderColor color; +} xRenderCreateSolidFillReq; + +#define sz_xRenderCreateSolidFillReq 16 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Picture pid B32; + xPointFixed p1; + xPointFixed p2; + CARD32 nStops; +} xRenderCreateLinearGradientReq; + +#define sz_xRenderCreateLinearGradientReq 28 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Picture pid B32; + xPointFixed inner; + xPointFixed outer; + Fixed inner_radius; + Fixed outer_radius; + CARD32 nStops; +} xRenderCreateRadialGradientReq; + +#define sz_xRenderCreateRadialGradientReq 36 + +typedef struct { + CARD8 reqType; + CARD8 renderReqType; + CARD16 length B16; + Picture pid B32; + xPointFixed center; + Fixed angle; /* in degrees */ + CARD32 nStops; +} xRenderCreateConicalGradientReq; + +#define sz_xRenderCreateConicalGradientReq 24 + +#undef Window +#undef Drawable +#undef Font +#undef Pixmap +#undef Cursor +#undef Colormap +#undef GContext +#undef Atom +#undef VisualID +#undef Time +#undef KeyCode +#undef KeySym + +#undef Picture +#undef PictFormat +#undef Fixed +#undef Glyphset +#undef Glyph + + +#endif /* CAIRO_HAS_XLIB_XRENDER_SURFACE */ + +#endif /* CAIRO_XLIB_XRENDER_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib-xrender.h b/local/recipes/libs/cairo/source/src/cairo-xlib-xrender.h new file mode 100644 index 0000000000..b34b057de4 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib-xrender.h @@ -0,0 +1,66 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_XLIB_XRENDER_H +#define CAIRO_XLIB_XRENDER_H + +#include "cairo.h" + +#if CAIRO_HAS_XLIB_XRENDER_SURFACE + +#include +#include + +CAIRO_BEGIN_DECLS + +cairo_public cairo_surface_t * +cairo_xlib_surface_create_with_xrender_format (Display *dpy, + Drawable drawable, + Screen *screen, + XRenderPictFormat *format, + int width, + int height); + +cairo_public XRenderPictFormat * +cairo_xlib_surface_get_xrender_format (cairo_surface_t *surface); + +CAIRO_END_DECLS + +#else /* CAIRO_HAS_XLIB_XRENDER_SURFACE */ +# error Cairo was not compiled with support for the xlib XRender backend +#endif /* CAIRO_HAS_XLIB_XRENDER_SURFACE */ + +#endif /* CAIRO_XLIB_XRENDER_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo-xlib.h b/local/recipes/libs/cairo/source/src/cairo-xlib.h new file mode 100644 index 0000000000..ecf8d6c86b --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo-xlib.h @@ -0,0 +1,118 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_XLIB_H +#define CAIRO_XLIB_H + +#include "cairo.h" + +#if CAIRO_HAS_XLIB_SURFACE + +#include + +CAIRO_BEGIN_DECLS + +cairo_public cairo_surface_t * +cairo_xlib_surface_create (Display *dpy, + Drawable drawable, + Visual *visual, + int width, + int height); + +cairo_public cairo_surface_t * +cairo_xlib_surface_create_for_bitmap (Display *dpy, + Pixmap bitmap, + Screen *screen, + int width, + int height); + +cairo_public void +cairo_xlib_surface_set_size (cairo_surface_t *surface, + int width, + int height); + +cairo_public void +cairo_xlib_surface_set_drawable (cairo_surface_t *surface, + Drawable drawable, + int width, + int height); + +cairo_public Display * +cairo_xlib_surface_get_display (cairo_surface_t *surface); + +cairo_public Drawable +cairo_xlib_surface_get_drawable (cairo_surface_t *surface); + +cairo_public Screen * +cairo_xlib_surface_get_screen (cairo_surface_t *surface); + +cairo_public Visual * +cairo_xlib_surface_get_visual (cairo_surface_t *surface); + +cairo_public int +cairo_xlib_surface_get_depth (cairo_surface_t *surface); + +cairo_public int +cairo_xlib_surface_get_width (cairo_surface_t *surface); + +cairo_public int +cairo_xlib_surface_get_height (cairo_surface_t *surface); + +/* debug interface */ + +cairo_public void +cairo_xlib_device_debug_cap_xrender_version (cairo_device_t *device, + int major_version, + int minor_version); + +/* + * @precision: -1 implies automatically choose based on antialiasing mode, + * any other value overrides and sets the corresponding PolyMode. + */ +cairo_public void +cairo_xlib_device_debug_set_precision (cairo_device_t *device, + int precision); + +cairo_public int +cairo_xlib_device_debug_get_precision (cairo_device_t *device); + +CAIRO_END_DECLS + +#else /* CAIRO_HAS_XLIB_SURFACE */ +# error Cairo was not compiled with support for the xlib backend +#endif /* CAIRO_HAS_XLIB_SURFACE */ + +#endif /* CAIRO_XLIB_H */ diff --git a/local/recipes/libs/cairo/source/src/cairo.c b/local/recipes/libs/cairo/source/src/cairo.c new file mode 100644 index 0000000000..78c60df5cf --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo.c @@ -0,0 +1,4371 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Chris Wilson + */ + +#include "cairoint.h" +#include "cairo-private.h" + +#include "cairo-backend-private.h" +#include "cairo-error-private.h" +#include "cairo-path-private.h" +#include "cairo-pattern-private.h" +#include "cairo-surface-private.h" +#include "cairo-surface-backend-private.h" + +#include + +/** + * SECTION:cairo + * @Title: cairo_t + * @Short_Description: The cairo drawing context + * @See_Also: #cairo_surface_t + * + * #cairo_t is the main object used when drawing with cairo. To + * draw with cairo, you create a #cairo_t, set the target surface, + * and drawing options for the #cairo_t, create shapes with + * functions like cairo_move_to() and cairo_line_to(), and then + * draw shapes with cairo_stroke() or cairo_fill(). + * + * #cairo_t's can be pushed to a stack via cairo_save(). + * They may then safely be changed, without losing the current state. + * Use cairo_restore() to restore to the saved state. + **/ + +/** + * SECTION:cairo-text + * @Title: text + * @Short_Description: Rendering text and glyphs + * @See_Also: #cairo_font_face_t, #cairo_scaled_font_t, cairo_text_path(), + * cairo_glyph_path() + * + * The functions with text in their name form cairo's + * toy text API. The toy API takes UTF-8 encoded + * text and is limited in its functionality to rendering simple + * left-to-right text with no advanced features. That means for example + * that most complex scripts like Hebrew, Arabic, and Indic scripts are + * out of question. No kerning or correct positioning of diacritical marks + * either. The font selection is pretty limited too and doesn't handle the + * case that the selected font does not cover the characters in the text. + * This set of functions are really that, a toy text API, for testing and + * demonstration purposes. Any serious application should avoid them. + * + * The functions with glyphs in their name form cairo's + * low-level text API. The low-level API relies on + * the user to convert text to a set of glyph indexes and positions. This + * is a very hard problem and is best handled by external libraries, like + * the pangocairo that is part of the Pango text layout and rendering library. + * Pango is available from http://www.pango.org/. + **/ + +/** + * SECTION:cairo-transforms + * @Title: Transformations + * @Short_Description: Manipulating the current transformation matrix + * @See_Also: #cairo_matrix_t + * + * The current transformation matrix, ctm, is a + * two-dimensional affine transformation that maps all coordinates and other + * drawing instruments from the user space into the + * surface's canonical coordinate system, also known as the device + * space. + **/ + +/** + * SECTION:cairo-tag + * @Title: Tags and Links + * @Short_Description: Hyperlinks and document structure + * @See_Also: #cairo_pdf_surface_t + * + * The tag functions provide the ability to specify hyperlinks and + * document logical structure on supported backends. The following tags are supported: + * * [Link][link] - Create a hyperlink + * * [Destinations][dest] - Create a hyperlink destination + * * [Document Structure Tags][doc-struct] - Create PDF Document Structure + * + * # Link Tags # {#link} + * A hyperlink is specified by enclosing the hyperlink text with the %CAIRO_TAG_LINK tag. + * + * For example: + * + * cairo_tag_begin (cr, CAIRO_TAG_LINK, "uri='https://cairographics.org'"); + * cairo_move_to (cr, 50, 50); + * cairo_show_text (cr, "This is a link to the cairo website."); + * cairo_tag_end (cr, CAIRO_TAG_LINK); + * + * + * The PDF backend uses one or more rectangles to define the clickable + * area of the link. By default cairo will use the extents of the + * drawing operations enclosed by the begin/end link tags to define the + * clickable area. In some cases, such as a link split across two + * lines, the default rectangle is undesirable. + * + * @rect: [optional] The "rect" attribute allows the application to + * specify one or more rectangles that form the clickable region. The + * value of this attribute is an array of floats. Each rectangle is + * specified by four elements in the array: x, y, width, height. The + * array size must be a multiple of four. + * + * An example of creating a link with user specified clickable region: + * + * struct text { + * const char *s; + * double x, y; + * }; + * const struct text text1 = { "This link is split", 450, 70 }; + * const struct text text2 = { "across two lines", 50, 70 }; + * cairo_text_extents_t text1_extents; + * cairo_text_extents_t text2_extents; + * char attribs[100]; + * + * cairo_text_extents (cr, text1.s, &text1_extents); + * cairo_text_extents (cr, text2.s, &text2_extents); + * sprintf (attribs, + * "rect=[%f %f %f %f %f %f %f %f] uri='https://cairographics.org'", + * text1_extents.x_bearing + text1.x, + * text1_extents.y_bearing + text1.y, + * text1_extents.width, + * text1_extents.height, + * text2_extents.x_bearing + text2.x, + * text2_extents.y_bearing + text2.y, + * text2_extents.width, + * text2_extents.height); + * + * cairo_tag_begin (cr, CAIRO_TAG_LINK, attribs); + * cairo_move_to (cr, text1.x, text1.y); + * cairo_show_text (cr, text1.s); + * cairo_move_to (cr, text2.x, text2.y); + * cairo_show_text (cr, text2.s); + * cairo_tag_end (cr, CAIRO_TAG_LINK); + * + * + * There are three types of links. Each type has its own attributes as detailed below. + * * [Internal Links][internal-link] - A link to a location in the same document + * * [URI Links][uri-link] - A link to a Uniform resource identifier + * * [File Links][file-link] - A link to a location in another document + * + * ## Internal Links ## {#internal-link} + * An internal link is a link to a location in the same document. The destination + * is specified with either: + * + * @dest: a UTF-8 string specifying the destination in the PDF file to link + * to. Destinations are created with the %CAIRO_TAG_DEST tag. + * + * or the two attributes: + * + * @page: An integer specifying the page number in the PDF file to link to. + * + * @pos: [optional] An array of two floats specifying the x,y position + * on the page. + * + * An example of the link attributes to link to a page and x,y position: + * + * "page=3 pos=[3.1 6.2]" + * + * + * ## URI Links ## {#uri-link} + * A URI link is a link to a Uniform Resource Identifier ([RFC 2396](http://tools.ietf.org/html/rfc2396)). + * + * A URI is specified with the following attribute: + * + * @uri: An ASCII string specifying the URI. + * + * An example of the link attributes to the cairo website: + * + * "uri='https://cairographics.org'" + * + * + * ## File Links ## {#file-link} + * A file link is a link a location in another PDF file. + * + * The file attribute (required) specifies the name of the PDF file: + * + * @file: File name of PDF file to link to. + * + * The position is specified by either: + * + * @dest: a UTF-8 string specifying the named destination in the PDF file. + * + * or + * + * @page: An integer specifying the page number in the PDF file. + * + * @pos: [optional] An array of two floats specifying the x,y + * position on the page. Position coordinates in external files are in PDF + * coordinates (0,0 at bottom left). + * + * An example of the link attributes to PDF file: + * + * "file='document.pdf' page=16 pos=[25 40]" + * + * + * # Destination Tags # {#dest} + * + * A destination is specified by enclosing the destination drawing + * operations with the %CAIRO_TAG_DEST tag. + * + * @name: [required] A UTF-8 string specifying the name of this destination. + * + * @x: [optional] A float specifying the x coordinate of destination + * position on this page. If not specified the default + * x coordinate is the left side of the extents of the + * operations enclosed by the %CAIRO_TAG_DEST begin/end tags. If + * no operations are enclosed, the x coordidate is 0. + * + * @y: [optional] A float specifying the y coordinate of destination + * position on this page. If not specified the default + * y coordinate is the top of the extents of the + * operations enclosed by the %CAIRO_TAG_DEST begin/end tags. If + * no operations are enclosed, the y coordidate is 0. + * + * @internal: A boolean that if true, the destination name may be + * omitted from PDF where possible. In this case, links + * refer directly to the page and position instead of via + * the named destination table. Note that if this + * destination is referenced by another PDF (see [File Links][file-link]), + * this attribute must be false. Default is false. + * + * + * /* Create a hyperlink */ + * cairo_tag_begin (cr, CAIRO_TAG_LINK, "dest='mydest' internal"); + * cairo_move_to (cr, 50, 50); + * cairo_show_text (cr, "This is a hyperlink."); + * cairo_tag_end (cr, CAIRO_TAG_LINK); + * + * /* Create a destination */ + * cairo_tag_begin (cr, CAIRO_TAG_DEST, "name='mydest'"); + * cairo_move_to (cr, 50, 250); + * cairo_show_text (cr, "This paragraph is the destination of the above link."); + * cairo_tag_end (cr, CAIRO_TAG_DEST); + * + * + * # Document Structure (PDF) # {#doc-struct} + * + * The document structure tags provide a means of specifying structural information + * such as headers, paragraphs, tables, and figures. The inclusion of structural information facilitates: + * * Extraction of text and graphics for copy and paste + * * Reflow of text and graphics in the viewer + * * Processing text eg searching and indexing + * * Conversion to other formats + * * Accessability support + * + * The list of structure types is specified in section 14.8.4 of the + * [PDF Reference](http://www.adobe.com/content/dam/Adobe/en/devnet/acrobat/pdfs/PDF32000_2008.pdf). + * + * Note the PDF "Link" structure tag is the same as the cairo %CAIRO_TAG_LINK tag. + * + * The following example creates a document structure for a document containing two section, each with + * a header and a paragraph. + * + * + * cairo_tag_begin (cr, "Document", NULL); + * + * cairo_tag_begin (cr, "Sect", NULL); + * cairo_tag_begin (cr, "H1", NULL); + * cairo_show_text (cr, "Heading 1"); + * cairo_tag_end (cr, "H1"); + * + * cairo_tag_begin (cr, "P", NULL); + * cairo_show_text (cr, "Paragraph 1"); + * cairo_tag_end (cr, "P"); + * cairo_tag_end (cr, "Sect"); + * + * cairo_tag_begin (cr, "Sect", NULL); + * cairo_tag_begin (cr, "H1", NULL); + * cairo_show_text (cr, "Heading 2"); + * cairo_tag_end (cr, "H1"); + * + * cairo_tag_begin (cr, "P", NULL); + * cairo_show_text (cr, "Paragraph 2"); + * cairo_tag_end (cr, "P"); + * cairo_tag_end (cr, "Sect"); + * + * cairo_tag_end (cr, "Document"); + * + * + **/ + +#define DEFINE_NIL_CONTEXT(status) \ + { \ + CAIRO_REFERENCE_COUNT_INVALID, /* ref_count */ \ + status, /* status */ \ + { 0, 0, 0, NULL }, /* user_data */ \ + NULL \ + } + +static const cairo_t _cairo_nil[] = { + DEFINE_NIL_CONTEXT (CAIRO_STATUS_NO_MEMORY), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_RESTORE), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_POP_GROUP), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_NO_CURRENT_POINT), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_MATRIX), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_STATUS), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_NULL_POINTER), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_STRING), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_PATH_DATA), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_READ_ERROR), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_WRITE_ERROR), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_SURFACE_FINISHED), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_SURFACE_TYPE_MISMATCH), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_PATTERN_TYPE_MISMATCH), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_CONTENT), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_FORMAT), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_VISUAL), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_FILE_NOT_FOUND), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_DASH), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_DSC_COMMENT), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_INDEX), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_CLIP_NOT_REPRESENTABLE), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_TEMP_FILE_ERROR), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_STRIDE), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_FONT_TYPE_MISMATCH), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_USER_FONT_IMMUTABLE), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_USER_FONT_ERROR), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_NEGATIVE_COUNT), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_CLUSTERS), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_SLANT), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_WEIGHT), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_SIZE), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_DEVICE_TYPE_MISMATCH), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_DEVICE_ERROR), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_INVALID_MESH_CONSTRUCTION), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_DEVICE_FINISHED), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_JBIG2_GLOBAL_MISSING), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_PNG_ERROR), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_FREETYPE_ERROR), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_WIN32_GDI_ERROR), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_TAG_ERROR), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_DWRITE_ERROR), + DEFINE_NIL_CONTEXT (CAIRO_STATUS_SVG_FONT_ERROR) +}; +COMPILE_TIME_ASSERT (ARRAY_LENGTH (_cairo_nil) == CAIRO_STATUS_LAST_STATUS - 1); + +/** + * _cairo_set_error: + * @cr: a cairo context + * @status: a status value indicating an error + * + * Atomically sets cr->status to @status and calls _cairo_error; + * Does nothing if status is %CAIRO_STATUS_SUCCESS. + * + * All assignments of an error status to cr->status should happen + * through _cairo_set_error(). Note that due to the nature of the atomic + * operation, it is not safe to call this function on the nil objects. + * + * The purpose of this function is to allow the user to set a + * breakpoint in _cairo_error() to generate a stack trace for when the + * user causes cairo to detect an error. + **/ +static void +_cairo_set_error (cairo_t *cr, cairo_status_t status) +{ + /* Don't overwrite an existing error. This preserves the first + * error, which is the most significant. */ + _cairo_status_set_error (&cr->status, _cairo_error (status)); +} + +cairo_t * +_cairo_create_in_error (cairo_status_t status) +{ + cairo_t *cr; + + assert (status != CAIRO_STATUS_SUCCESS); + + cr = (cairo_t *) &_cairo_nil[status - CAIRO_STATUS_NO_MEMORY]; + assert (status == cr->status); + + return cr; +} + +/** + * cairo_create: + * @target: target surface for the context + * + * Creates a new #cairo_t with all graphics state parameters set to + * default values and with @target as a target surface. The target + * surface should be constructed with a backend-specific function such + * as cairo_image_surface_create() (or any other + * cairo_backend_surface_create() + * variant). + * + * This function references @target, so you can immediately + * call cairo_surface_destroy() on it if you don't need to + * maintain a separate reference to it. + * + * Return value: a newly allocated #cairo_t with a reference + * count of 1. The initial reference count should be released + * with cairo_destroy() when you are done using the #cairo_t. + * This function never returns %NULL. If memory cannot be + * allocated, a special #cairo_t object will be returned on + * which cairo_status() returns %CAIRO_STATUS_NO_MEMORY. If + * you attempt to target a surface which does not support + * writing (such as #cairo_mime_surface_t) then a + * %CAIRO_STATUS_WRITE_ERROR will be raised. You can use this + * object normally, but no drawing will be done. + * + * Since: 1.0 + **/ +cairo_t * +cairo_create (cairo_surface_t *target) +{ + if (unlikely (target == NULL)) + return _cairo_create_in_error (_cairo_error (CAIRO_STATUS_NULL_POINTER)); + if (unlikely (target->status)) + return _cairo_create_in_error (target->status); + if (unlikely (target->finished)) + return _cairo_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); + + if (target->backend->create_context == NULL) + return _cairo_create_in_error (_cairo_error (CAIRO_STATUS_WRITE_ERROR)); + + return target->backend->create_context (target); + +} + +void +_cairo_init (cairo_t *cr, + const cairo_backend_t *backend) +{ + CAIRO_REFERENCE_COUNT_INIT (&cr->ref_count, 1); + cr->status = CAIRO_STATUS_SUCCESS; + _cairo_user_data_array_init (&cr->user_data); + + cr->backend = backend; +} + +/** + * cairo_reference: + * @cr: a #cairo_t + * + * Increases the reference count on @cr by one. This prevents + * @cr from being destroyed until a matching call to cairo_destroy() + * is made. + * + * Use cairo_get_reference_count() to get the number of references to + * a #cairo_t. + * + * Return value: the referenced #cairo_t. + * + * Since: 1.0 + **/ +cairo_t * +cairo_reference (cairo_t *cr) +{ + if (cr == NULL || CAIRO_REFERENCE_COUNT_IS_INVALID (&cr->ref_count)) + return cr; + + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&cr->ref_count)); + + _cairo_reference_count_inc (&cr->ref_count); + + return cr; +} + +void +_cairo_fini (cairo_t *cr) +{ + _cairo_user_data_array_fini (&cr->user_data); +} + +/** + * cairo_destroy: + * @cr: a #cairo_t + * + * Decreases the reference count on @cr by one. If the result + * is zero, then @cr and all associated resources are freed. + * See cairo_reference(). + * + * Since: 1.0 + **/ +void +cairo_destroy (cairo_t *cr) +{ + if (cr == NULL || CAIRO_REFERENCE_COUNT_IS_INVALID (&cr->ref_count)) + return; + + assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&cr->ref_count)); + + if (! _cairo_reference_count_dec_and_test (&cr->ref_count)) + return; + + cr->backend->destroy (cr); +} + +/** + * cairo_get_user_data: + * @cr: a #cairo_t + * @key: the address of the #cairo_user_data_key_t the user data was + * attached to + * + * Return user data previously attached to @cr using the specified + * key. If no user data has been attached with the given key this + * function returns %NULL. + * + * Return value: the user data previously attached or %NULL. + * + * Since: 1.4 + **/ +void * +cairo_get_user_data (cairo_t *cr, + const cairo_user_data_key_t *key) +{ + return _cairo_user_data_array_get_data (&cr->user_data, key); +} + +/** + * cairo_set_user_data: + * @cr: a #cairo_t + * @key: the address of a #cairo_user_data_key_t to attach the user data to + * @user_data: the user data to attach to the #cairo_t + * @destroy: a #cairo_destroy_func_t which will be called when the + * #cairo_t is destroyed or when new user data is attached using the + * same key. + * + * Attach user data to @cr. To remove user data from a surface, + * call this function with the key that was used to set it and %NULL + * for @data. + * + * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY if a + * slot could not be allocated for the user data. + * + * Since: 1.4 + **/ +cairo_status_t +cairo_set_user_data (cairo_t *cr, + const cairo_user_data_key_t *key, + void *user_data, + cairo_destroy_func_t destroy) +{ + if (CAIRO_REFERENCE_COUNT_IS_INVALID (&cr->ref_count)) + return cr->status; + + return _cairo_user_data_array_set_data (&cr->user_data, + key, user_data, destroy); +} + +/** + * cairo_get_reference_count: + * @cr: a #cairo_t + * + * Returns the current reference count of @cr. + * + * Return value: the current reference count of @cr. If the + * object is a nil object, 0 will be returned. + * + * Since: 1.4 + **/ +unsigned int +cairo_get_reference_count (cairo_t *cr) +{ + if (cr == NULL || CAIRO_REFERENCE_COUNT_IS_INVALID (&cr->ref_count)) + return 0; + + return CAIRO_REFERENCE_COUNT_GET_VALUE (&cr->ref_count); +} + +/** + * cairo_save: + * @cr: a #cairo_t + * + * Makes a copy of the current state of @cr and saves it + * on an internal stack of saved states for @cr. When + * cairo_restore() is called, @cr will be restored to + * the saved state. Multiple calls to cairo_save() and + * cairo_restore() can be nested; each call to cairo_restore() + * restores the state from the matching paired cairo_save(). + * + * It isn't necessary to clear all saved states before + * a #cairo_t is freed. If the reference count of a #cairo_t + * drops to zero in response to a call to cairo_destroy(), + * any saved states will be freed along with the #cairo_t. + * + * Since: 1.0 + **/ +void +cairo_save (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->save (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_restore: + * @cr: a #cairo_t + * + * Restores @cr to the state saved by a preceding call to + * cairo_save() and removes that state from the stack of + * saved states. + * + * Since: 1.0 + **/ +void +cairo_restore (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->restore (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_push_group: + * @cr: a cairo context + * + * Temporarily redirects drawing to an intermediate surface known as a + * group. The redirection lasts until the group is completed by a call + * to cairo_pop_group() or cairo_pop_group_to_source(). These calls + * provide the result of any drawing to the group as a pattern, + * (either as an explicit object, or set as the source pattern). + * + * This group functionality can be convenient for performing + * intermediate compositing. One common use of a group is to render + * objects as opaque within the group, (so that they occlude each + * other), and then blend the result with translucence onto the + * destination. + * + * Groups can be nested arbitrarily deep by making balanced calls to + * cairo_push_group()/cairo_pop_group(). Each call pushes/pops the new + * target group onto/from a stack. + * + * The cairo_push_group() function calls cairo_save() so that any + * changes to the graphics state will not be visible outside the + * group, (the pop_group functions call cairo_restore()). + * + * By default the intermediate group will have a content type of + * %CAIRO_CONTENT_COLOR_ALPHA. Other content types can be chosen for + * the group by using cairo_push_group_with_content() instead. + * + * As an example, here is how one might fill and stroke a path with + * translucence, but without any portion of the fill being visible + * under the stroke: + * + * + * cairo_push_group (cr); + * cairo_set_source (cr, fill_pattern); + * cairo_fill_preserve (cr); + * cairo_set_source (cr, stroke_pattern); + * cairo_stroke (cr); + * cairo_pop_group_to_source (cr); + * cairo_paint_with_alpha (cr, alpha); + * + * + * Since: 1.2 + **/ +void +cairo_push_group (cairo_t *cr) +{ + cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR_ALPHA); +} + +/** + * cairo_push_group_with_content: + * @cr: a cairo context + * @content: a #cairo_content_t indicating the type of group that + * will be created + * + * Temporarily redirects drawing to an intermediate surface known as a + * group. The redirection lasts until the group is completed by a call + * to cairo_pop_group() or cairo_pop_group_to_source(). These calls + * provide the result of any drawing to the group as a pattern, + * (either as an explicit object, or set as the source pattern). + * + * The group will have a content type of @content. The ability to + * control this content type is the only distinction between this + * function and cairo_push_group() which you should see for a more + * detailed description of group rendering. + * + * Since: 1.2 + **/ +void +cairo_push_group_with_content (cairo_t *cr, cairo_content_t content) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->push_group (cr, content); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_pop_group: + * @cr: a cairo context + * + * Terminates the redirection begun by a call to cairo_push_group() or + * cairo_push_group_with_content() and returns a new pattern + * containing the results of all drawing operations performed to the + * group. + * + * The cairo_pop_group() function calls cairo_restore(), (balancing a + * call to cairo_save() by the push_group function), so that any + * changes to the graphics state will not be visible outside the + * group. + * + * Return value: a newly created (surface) pattern containing the + * results of all drawing operations performed to the group. The + * caller owns the returned object and should call + * cairo_pattern_destroy() when finished with it. + * + * Since: 1.2 + **/ +cairo_pattern_t * +cairo_pop_group (cairo_t *cr) +{ + cairo_pattern_t *group_pattern; + + if (unlikely (cr->status)) + return _cairo_pattern_create_in_error (cr->status); + + group_pattern = cr->backend->pop_group (cr); + if (unlikely (group_pattern->status)) + _cairo_set_error (cr, group_pattern->status); + + return group_pattern; +} + +/** + * cairo_pop_group_to_source: + * @cr: a cairo context + * + * Terminates the redirection begun by a call to cairo_push_group() or + * cairo_push_group_with_content() and installs the resulting pattern + * as the source pattern in the given cairo context. + * + * The behavior of this function is equivalent to the sequence of + * operations: + * + * + * cairo_pattern_t *group = cairo_pop_group (cr); + * cairo_set_source (cr, group); + * cairo_pattern_destroy (group); + * + * + * but is more convenient as their is no need for a variable to store + * the short-lived pointer to the pattern. + * + * The cairo_pop_group() function calls cairo_restore(), (balancing a + * call to cairo_save() by the push_group function), so that any + * changes to the graphics state will not be visible outside the + * group. + * + * Since: 1.2 + **/ +void +cairo_pop_group_to_source (cairo_t *cr) +{ + cairo_pattern_t *group_pattern; + + group_pattern = cairo_pop_group (cr); + cairo_set_source (cr, group_pattern); + cairo_pattern_destroy (group_pattern); +} + +/** + * cairo_set_operator: + * @cr: a #cairo_t + * @op: a compositing operator, specified as a #cairo_operator_t + * + * Sets the compositing operator to be used for all drawing + * operations. See #cairo_operator_t for details on the semantics of + * each available compositing operator. + * + * The default operator is %CAIRO_OPERATOR_OVER. + * + * Since: 1.0 + **/ +void +cairo_set_operator (cairo_t *cr, cairo_operator_t op) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_operator (cr, op); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + + +#if 0 +/* + * cairo_set_opacity: + * @cr: a #cairo_t + * @opacity: the level of opacity to use when compositing + * + * Sets the compositing opacity to be used for all drawing + * operations. The effect is to fade out the operations + * using the alpha value. + * + * The default opacity is 1. + */ +void +cairo_set_opacity (cairo_t *cr, double opacity) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_opacity (cr, opacity); + if (unlikely (status)) + _cairo_set_error (cr, status); +} +#endif + +/** + * cairo_set_source_rgb: + * @cr: a cairo context + * @red: red component of color + * @green: green component of color + * @blue: blue component of color + * + * Sets the source pattern within @cr to an opaque color. This opaque + * color will then be used for any subsequent drawing operation until + * a new source pattern is set. + * + * The color components are floating point numbers in the range 0 to + * 1. If the values passed in are outside that range, they will be + * clamped. + * + * The default source pattern is opaque black, (that is, it is + * equivalent to cairo_set_source_rgb(cr, 0.0, 0.0, 0.0)). + * + * Since: 1.0 + **/ +void +cairo_set_source_rgb (cairo_t *cr, double red, double green, double blue) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_source_rgba (cr, red, green, blue, 1.); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_set_source_rgba: + * @cr: a cairo context + * @red: red component of color + * @green: green component of color + * @blue: blue component of color + * @alpha: alpha component of color + * + * Sets the source pattern within @cr to a translucent color. This + * color will then be used for any subsequent drawing operation until + * a new source pattern is set. + * + * The color and alpha components are floating point numbers in the + * range 0 to 1. If the values passed in are outside that range, they + * will be clamped. + * + * Note that the color and alpha values are not premultiplied. + * + * The default source pattern is opaque black, (that is, it is + * equivalent to cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0)). + * + * Since: 1.0 + **/ +void +cairo_set_source_rgba (cairo_t *cr, + double red, double green, double blue, + double alpha) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_source_rgba (cr, red, green, blue, alpha); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_set_source_surface: + * @cr: a cairo context + * @surface: a surface to be used to set the source pattern + * @x: User-space X coordinate for surface origin + * @y: User-space Y coordinate for surface origin + * + * This is a convenience function for creating a pattern from @surface + * and setting it as the source in @cr with cairo_set_source(). + * + * The @x and @y parameters give the user-space coordinate at which + * the surface origin should appear. (The surface origin is its + * upper-left corner before any transformation has been applied.) The + * @x and @y parameters are negated and then set as translation values + * in the pattern matrix. + * + * Other than the initial translation pattern matrix, as described + * above, all other pattern attributes, (such as its extend mode), are + * set to the default values as in cairo_pattern_create_for_surface(). + * The resulting pattern can be queried with cairo_get_source() so + * that these attributes can be modified if desired, (eg. to create a + * repeating pattern with cairo_pattern_set_extend()). + * + * Since: 1.0 + **/ +void +cairo_set_source_surface (cairo_t *cr, + cairo_surface_t *surface, + double x, + double y) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + if (unlikely (surface == NULL)) { + _cairo_set_error (cr, CAIRO_STATUS_NULL_POINTER); + return; + } + + status = cr->backend->set_source_surface (cr, surface, x, y); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_set_source: + * @cr: a cairo context + * @source: a #cairo_pattern_t to be used as the source for + * subsequent drawing operations. + * + * Sets the source pattern within @cr to @source. This pattern + * will then be used for any subsequent drawing operation until a new + * source pattern is set. + * + * Note: The pattern's transformation matrix will be locked to the + * user space in effect at the time of cairo_set_source(). This means + * that further modifications of the current transformation matrix + * will not affect the source pattern. See cairo_pattern_set_matrix(). + * + * The default source pattern is a solid pattern that is opaque black, + * (that is, it is equivalent to cairo_set_source_rgb(cr, 0.0, 0.0, + * 0.0)). + * + * Since: 1.0 + **/ +void +cairo_set_source (cairo_t *cr, cairo_pattern_t *source) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + if (unlikely (source == NULL)) { + _cairo_set_error (cr, CAIRO_STATUS_NULL_POINTER); + return; + } + + if (unlikely (source->status)) { + _cairo_set_error (cr, source->status); + return; + } + + status = cr->backend->set_source (cr, source); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_get_source: + * @cr: a cairo context + * + * Gets the current source pattern for @cr. + * + * Return value: the current source pattern. This object is owned by + * cairo. To keep a reference to it, you must call + * cairo_pattern_reference(). + * + * Since: 1.0 + **/ +cairo_pattern_t * +cairo_get_source (cairo_t *cr) +{ + if (unlikely (cr->status)) + return _cairo_pattern_create_in_error (cr->status); + + return cr->backend->get_source (cr); +} + +/** + * cairo_set_tolerance: + * @cr: a #cairo_t + * @tolerance: the tolerance, in device units (typically pixels) + * + * Sets the tolerance used when converting paths into trapezoids. + * Curved segments of the path will be subdivided until the maximum + * deviation between the original path and the polygonal approximation + * is less than @tolerance. The default value is 0.1. A larger + * value will give better performance, a smaller value, better + * appearance. (Reducing the value from the default value of 0.1 + * is unlikely to improve appearance significantly.) The accuracy of paths + * within Cairo is limited by the precision of its internal arithmetic, and + * the prescribed @tolerance is restricted to the smallest + * representable internal value. + * + * Since: 1.0 + **/ +void +cairo_set_tolerance (cairo_t *cr, double tolerance) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_tolerance (cr, tolerance); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_set_antialias: + * @cr: a #cairo_t + * @antialias: the new antialiasing mode + * + * Set the antialiasing mode of the rasterizer used for drawing shapes. + * This value is a hint, and a particular backend may or may not support + * a particular value. At the current time, no backend supports + * %CAIRO_ANTIALIAS_SUBPIXEL when drawing shapes. + * + * Note that this option does not affect text rendering, instead see + * cairo_font_options_set_antialias(). + * + * Since: 1.0 + **/ +void +cairo_set_antialias (cairo_t *cr, cairo_antialias_t antialias) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_antialias (cr, antialias); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_set_fill_rule: + * @cr: a #cairo_t + * @fill_rule: a fill rule, specified as a #cairo_fill_rule_t + * + * Set the current fill rule within the cairo context. The fill rule + * is used to determine which regions are inside or outside a complex + * (potentially self-intersecting) path. The current fill rule affects + * both cairo_fill() and cairo_clip(). See #cairo_fill_rule_t for details + * on the semantics of each available fill rule. + * + * The default fill rule is %CAIRO_FILL_RULE_WINDING. + * + * Since: 1.0 + **/ +void +cairo_set_fill_rule (cairo_t *cr, cairo_fill_rule_t fill_rule) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_fill_rule (cr, fill_rule); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_set_line_width: + * @cr: a #cairo_t + * @width: a line width + * + * Sets the current line width within the cairo context. The line + * width value specifies the diameter of a pen that is circular in + * user space, (though device-space pen may be an ellipse in general + * due to scaling/shear/rotation of the CTM). + * + * Note: When the description above refers to user space and CTM it + * refers to the user space and CTM in effect at the time of the + * stroking operation, not the user space and CTM in effect at the + * time of the call to cairo_set_line_width(). The simplest usage + * makes both of these spaces identical. That is, if there is no + * change to the CTM between a call to cairo_set_line_width() and the + * stroking operation, then one can just pass user-space values to + * cairo_set_line_width() and ignore this note. + * + * As with the other stroke parameters, the current line width is + * examined by cairo_stroke(), and cairo_stroke_extents(), but does not have + * any effect during path construction. + * + * The default line width value is 2.0. + * + * Since: 1.0 + **/ +void +cairo_set_line_width (cairo_t *cr, double width) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + if (width < 0.) + width = 0.; + + status = cr->backend->set_line_width (cr, width); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_set_hairline: + * @cr: a #cairo_t + * @set_hairline: whether or not to set hairline mode + * + * Sets lines within the cairo context to be hairlines. + * Hairlines are logically zero-width lines that are drawn at the + * thinnest renderable width possible in the current context. + * + * On surfaces with native hairline support, the native hairline + * functionality will be used. Surfaces that support hairlines include: + * - pdf/ps: Encoded as 0-width line. + * - win32_printing: Rendered with PS_COSMETIC pen. + * - svg: Encoded as 1px non-scaling-stroke. + * - script: Encoded with set-hairline function. + * + * Cairo will always render hairlines at 1 device unit wide, even if + * an anisotropic scaling was applied to the stroke width. In the wild, + * handling of this situation is not well-defined. Some PDF, PS, and SVG + * renderers match Cairo's output, but some very popular implementations + * (Acrobat, Chrome, rsvg) will scale the hairline unevenly. + * As such, best practice is to reset any anisotropic scaling before calling + * cairo_stroke(). See https://cairographics.org/cookbook/ellipses/ + * for an example. + * + * Since: 1.18 + **/ +void +cairo_set_hairline (cairo_t *cr, cairo_bool_t set_hairline) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_hairline (cr, set_hairline); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_set_line_cap: + * @cr: a cairo context + * @line_cap: a line cap style + * + * Sets the current line cap style within the cairo context. See + * #cairo_line_cap_t for details about how the available line cap + * styles are drawn. + * + * As with the other stroke parameters, the current line cap style is + * examined by cairo_stroke(), and cairo_stroke_extents(), but does not have + * any effect during path construction. + * + * The default line cap style is %CAIRO_LINE_CAP_BUTT. + * + * Since: 1.0 + **/ +void +cairo_set_line_cap (cairo_t *cr, cairo_line_cap_t line_cap) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_line_cap (cr, line_cap); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_set_line_join: + * @cr: a cairo context + * @line_join: a line join style + * + * Sets the current line join style within the cairo context. See + * #cairo_line_join_t for details about how the available line join + * styles are drawn. + * + * As with the other stroke parameters, the current line join style is + * examined by cairo_stroke(), and cairo_stroke_extents(), but does not have + * any effect during path construction. + * + * The default line join style is %CAIRO_LINE_JOIN_MITER. + * + * Since: 1.0 + **/ +void +cairo_set_line_join (cairo_t *cr, cairo_line_join_t line_join) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_line_join (cr, line_join); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_set_dash: + * @cr: a cairo context + * @dashes: an array specifying alternate lengths of on and off stroke portions + * @num_dashes: the length of the dashes array + * @offset: an offset into the dash pattern at which the stroke should start + * + * Sets the dash pattern to be used by cairo_stroke(). A dash pattern + * is specified by @dashes, an array of positive values. Each value + * provides the length of alternate "on" and "off" portions of the + * stroke. The @offset specifies an offset into the pattern at which + * the stroke begins. + * + * Each "on" segment will have caps applied as if the segment were a + * separate sub-path. In particular, it is valid to use an "on" length + * of 0.0 with %CAIRO_LINE_CAP_ROUND or %CAIRO_LINE_CAP_SQUARE in order + * to distributed dots or squares along a path. + * + * Note: The length values are in user-space units as evaluated at the + * time of stroking. This is not necessarily the same as the user + * space at the time of cairo_set_dash(). + * + * If @num_dashes is 0 dashing is disabled. + * + * If @num_dashes is 1 a symmetric pattern is assumed with alternating + * on and off portions of the size specified by the single value in + * @dashes. + * + * If any value in @dashes is negative, or if all values are 0, then + * @cr will be put into an error state with a status of + * %CAIRO_STATUS_INVALID_DASH. + * + * Since: 1.0 + **/ +void +cairo_set_dash (cairo_t *cr, + const double *dashes, + int num_dashes, + double offset) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_dash (cr, dashes, num_dashes, offset); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_get_dash_count: + * @cr: a #cairo_t + * + * This function returns the length of the dash array in @cr (0 if dashing + * is not currently in effect). + * + * See also cairo_set_dash() and cairo_get_dash(). + * + * Return value: the length of the dash array, or 0 if no dash array set. + * + * Since: 1.4 + **/ +int +cairo_get_dash_count (cairo_t *cr) +{ + int num_dashes; + + if (unlikely (cr->status)) + return 0; + + cr->backend->get_dash (cr, NULL, &num_dashes, NULL); + + return num_dashes; +} + +/** + * cairo_get_dash: + * @cr: a #cairo_t + * @dashes: return value for the dash array, or %NULL + * @offset: return value for the current dash offset, or %NULL + * + * Gets the current dash array. If not %NULL, @dashes should be big + * enough to hold at least the number of values returned by + * cairo_get_dash_count(). + * + * Since: 1.4 + **/ +void +cairo_get_dash (cairo_t *cr, + double *dashes, + double *offset) +{ + if (unlikely (cr->status)) + return; + + cr->backend->get_dash (cr, dashes, NULL, offset); +} + +/** + * cairo_set_miter_limit: + * @cr: a cairo context + * @limit: miter limit to set + * + * Sets the current miter limit within the cairo context. + * + * If the current line join style is set to %CAIRO_LINE_JOIN_MITER + * (see cairo_set_line_join()), the miter limit is used to determine + * whether the lines should be joined with a bevel instead of a miter. + * Cairo divides the length of the miter by the line width. + * If the result is greater than the miter limit, the style is + * converted to a bevel. + * + * As with the other stroke parameters, the current line miter limit is + * examined by cairo_stroke(), and cairo_stroke_extents(), but does not have + * any effect during path construction. + * + * The default miter limit value is 10.0, which will convert joins + * with interior angles less than 11 degrees to bevels instead of + * miters. For reference, a miter limit of 2.0 makes the miter cutoff + * at 60 degrees, and a miter limit of 1.414 makes the cutoff at 90 + * degrees. + * + * A miter limit for a desired angle can be computed as: miter limit = + * 1/sin(angle/2) + * + * Since: 1.0 + **/ +void +cairo_set_miter_limit (cairo_t *cr, double limit) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_miter_limit (cr, limit); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_translate: + * @cr: a cairo context + * @tx: amount to translate in the X direction + * @ty: amount to translate in the Y direction + * + * Modifies the current transformation matrix (CTM) by translating the + * user-space origin by (@tx, @ty). This offset is interpreted as a + * user-space coordinate according to the CTM in place before the new + * call to cairo_translate(). In other words, the translation of the + * user-space origin takes place after any existing transformation. + * + * Since: 1.0 + **/ +void +cairo_translate (cairo_t *cr, double tx, double ty) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->translate (cr, tx, ty); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_scale: + * @cr: a cairo context + * @sx: scale factor for the X dimension + * @sy: scale factor for the Y dimension + * + * Modifies the current transformation matrix (CTM) by scaling the X + * and Y user-space axes by @sx and @sy respectively. The scaling of + * the axes takes place after any existing transformation of user + * space. + * + * Since: 1.0 + **/ +void +cairo_scale (cairo_t *cr, double sx, double sy) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->scale (cr, sx, sy); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_rotate: + * @cr: a cairo context + * @angle: angle (in radians) by which the user-space axes will be + * rotated + * + * Modifies the current transformation matrix (CTM) by rotating the + * user-space axes by @angle radians. The rotation of the axes takes + * places after any existing transformation of user space. The + * rotation direction for positive angles is from the positive X axis + * toward the positive Y axis. + * + * Since: 1.0 + **/ +void +cairo_rotate (cairo_t *cr, double angle) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->rotate (cr, angle); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_transform: + * @cr: a cairo context + * @matrix: a transformation to be applied to the user-space axes + * + * Modifies the current transformation matrix (CTM) by applying + * @matrix as an additional transformation. The new transformation of + * user space takes place after any existing transformation. + * + * Since: 1.0 + **/ +void +cairo_transform (cairo_t *cr, + const cairo_matrix_t *matrix) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->transform (cr, matrix); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_set_matrix: + * @cr: a cairo context + * @matrix: a transformation matrix from user space to device space + * + * Modifies the current transformation matrix (CTM) by setting it + * equal to @matrix. + * + * Since: 1.0 + **/ +void +cairo_set_matrix (cairo_t *cr, + const cairo_matrix_t *matrix) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_matrix (cr, matrix); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_identity_matrix: + * @cr: a cairo context + * + * Resets the current transformation matrix (CTM) by setting it equal + * to the identity matrix. That is, the user-space and device-space + * axes will be aligned and one user-space unit will transform to one + * device-space unit. + * + * Since: 1.0 + **/ +void +cairo_identity_matrix (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_identity_matrix (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_user_to_device: + * @cr: a cairo context + * @x: X value of coordinate (in/out parameter) + * @y: Y value of coordinate (in/out parameter) + * + * Transform a coordinate from user space to device space by + * multiplying the given point by the current transformation matrix + * (CTM). + * + * Since: 1.0 + **/ +void +cairo_user_to_device (cairo_t *cr, double *x, double *y) +{ + if (unlikely (cr->status)) + return; + + cr->backend->user_to_device (cr, x, y); +} + +/** + * cairo_user_to_device_distance: + * @cr: a cairo context + * @dx: X component of a distance vector (in/out parameter) + * @dy: Y component of a distance vector (in/out parameter) + * + * Transform a distance vector from user space to device space. This + * function is similar to cairo_user_to_device() except that the + * translation components of the CTM will be ignored when transforming + * (@dx,@dy). + * + * Since: 1.0 + **/ +void +cairo_user_to_device_distance (cairo_t *cr, double *dx, double *dy) +{ + if (unlikely (cr->status)) + return; + + cr->backend->user_to_device_distance (cr, dx, dy); +} + +/** + * cairo_device_to_user: + * @cr: a cairo + * @x: X value of coordinate (in/out parameter) + * @y: Y value of coordinate (in/out parameter) + * + * Transform a coordinate from device space to user space by + * multiplying the given point by the inverse of the current + * transformation matrix (CTM). + * + * Since: 1.0 + **/ +void +cairo_device_to_user (cairo_t *cr, double *x, double *y) +{ + if (unlikely (cr->status)) + return; + + cr->backend->device_to_user (cr, x, y); +} + +/** + * cairo_device_to_user_distance: + * @cr: a cairo context + * @dx: X component of a distance vector (in/out parameter) + * @dy: Y component of a distance vector (in/out parameter) + * + * Transform a distance vector from device space to user space. This + * function is similar to cairo_device_to_user() except that the + * translation components of the inverse CTM will be ignored when + * transforming (@dx,@dy). + * + * Since: 1.0 + **/ +void +cairo_device_to_user_distance (cairo_t *cr, double *dx, double *dy) +{ + if (unlikely (cr->status)) + return; + + cr->backend->device_to_user_distance (cr, dx, dy); +} + +/** + * cairo_new_path: + * @cr: a cairo context + * + * Clears the current path. After this call there will be no path and + * no current point. + * + * Since: 1.0 + **/ +void +cairo_new_path (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->new_path (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_new_sub_path: + * @cr: a cairo context + * + * Begin a new sub-path. Note that the existing path is not + * affected. After this call there will be no current point. + * + * In many cases, this call is not needed since new sub-paths are + * frequently started with cairo_move_to(). + * + * A call to cairo_new_sub_path() is particularly useful when + * beginning a new sub-path with one of the cairo_arc() calls. This + * makes things easier as it is no longer necessary to manually + * compute the arc's initial coordinates for a call to + * cairo_move_to(). + * + * Since: 1.2 + **/ +void +cairo_new_sub_path (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->new_sub_path (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_move_to: + * @cr: a cairo context + * @x: the X coordinate of the new position + * @y: the Y coordinate of the new position + * + * Begin a new sub-path. After this call the current point will be (@x, + * @y). + * + * Since: 1.0 + **/ +void +cairo_move_to (cairo_t *cr, double x, double y) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->move_to (cr, x, y); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_line_to: + * @cr: a cairo context + * @x: the X coordinate of the end of the new line + * @y: the Y coordinate of the end of the new line + * + * Adds a line to the path from the current point to position (@x, @y) + * in user-space coordinates. After this call the current point + * will be (@x, @y). + * + * If there is no current point before the call to cairo_line_to() + * this function will behave as cairo_move_to(@cr, @x, @y). + * + * Since: 1.0 + **/ +void +cairo_line_to (cairo_t *cr, double x, double y) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->line_to (cr, x, y); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_curve_to: + * @cr: a cairo context + * @x1: the X coordinate of the first control point + * @y1: the Y coordinate of the first control point + * @x2: the X coordinate of the second control point + * @y2: the Y coordinate of the second control point + * @x3: the X coordinate of the end of the curve + * @y3: the Y coordinate of the end of the curve + * + * Adds a cubic Bézier spline to the path from the current point to + * position (@x3, @y3) in user-space coordinates, using (@x1, @y1) and + * (@x2, @y2) as the control points. After this call the current point + * will be (@x3, @y3). + * + * If there is no current point before the call to cairo_curve_to() + * this function will behave as if preceded by a call to + * cairo_move_to(@cr, @x1, @y1). + * + * Since: 1.0 + **/ +void +cairo_curve_to (cairo_t *cr, + double x1, double y1, + double x2, double y2, + double x3, double y3) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->curve_to (cr, + x1, y1, + x2, y2, + x3, y3); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_arc: + * @cr: a cairo context + * @xc: X position of the center of the arc + * @yc: Y position of the center of the arc + * @radius: the radius of the arc + * @angle1: the start angle, in radians + * @angle2: the end angle, in radians + * + * Adds a circular arc of the given @radius to the current path. The + * arc is centered at (@xc, @yc), begins at @angle1 and proceeds in + * the direction of increasing angles to end at @angle2. If @angle2 is + * less than @angle1 it will be progressively increased by + * 2*M_PI until it is greater than @angle1. + * + * If there is a current point, an initial line segment will be added + * to the path to connect the current point to the beginning of the + * arc. If this initial line is undesired, it can be avoided by + * calling cairo_new_sub_path() before calling cairo_arc(). + * + * Angles are measured in radians. An angle of 0.0 is in the direction + * of the positive X axis (in user space). An angle of + * M_PI/2.0 radians (90 degrees) is in the + * direction of the positive Y axis (in user space). Angles increase + * in the direction from the positive X axis toward the positive Y + * axis. So with the default transformation matrix, angles increase in + * a clockwise direction. + * + * (To convert from degrees to radians, use degrees * (M_PI / + * 180.).) + * + * This function gives the arc in the direction of increasing angles; + * see cairo_arc_negative() to get the arc in the direction of + * decreasing angles. + * + * The arc is circular in user space. To achieve an elliptical arc, + * you can scale the current transformation matrix by different + * amounts in the X and Y directions. For example, to draw an ellipse + * in the box given by @x, @y, @width, @height: + * + * + * cairo_save (cr); + * cairo_translate (cr, x + width / 2., y + height / 2.); + * cairo_scale (cr, width / 2., height / 2.); + * cairo_arc (cr, 0., 0., 1., 0., 2 * M_PI); + * cairo_restore (cr); + * + * + * Since: 1.0 + **/ +void +cairo_arc (cairo_t *cr, + double xc, double yc, + double radius, + double angle1, double angle2) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + if (angle2 < angle1) { + /* increase angle2 by multiples of full circle until it + * satisfies angle2 >= angle1 */ + angle2 = fmod (angle2 - angle1, 2 * M_PI); + if (angle2 < 0) + angle2 += 2 * M_PI; + angle2 += angle1; + } + + status = cr->backend->arc (cr, xc, yc, radius, angle1, angle2, TRUE); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_arc_negative: + * @cr: a cairo context + * @xc: X position of the center of the arc + * @yc: Y position of the center of the arc + * @radius: the radius of the arc + * @angle1: the start angle, in radians + * @angle2: the end angle, in radians + * + * Adds a circular arc of the given @radius to the current path. The + * arc is centered at (@xc, @yc), begins at @angle1 and proceeds in + * the direction of decreasing angles to end at @angle2. If @angle2 is + * greater than @angle1 it will be progressively decreased by + * 2*M_PI until it is less than @angle1. + * + * See cairo_arc() for more details. This function differs only in the + * direction of the arc between the two angles. + * + * Since: 1.0 + **/ +void +cairo_arc_negative (cairo_t *cr, + double xc, double yc, + double radius, + double angle1, double angle2) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + if (angle2 > angle1) { + /* decrease angle2 by multiples of full circle until it + * satisfies angle2 <= angle1 */ + angle2 = fmod (angle2 - angle1, 2 * M_PI); + if (angle2 > 0) + angle2 -= 2 * M_PI; + angle2 += angle1; + } + + status = cr->backend->arc (cr, xc, yc, radius, angle1, angle2, FALSE); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/* XXX: NYI +void +cairo_arc_to (cairo_t *cr, + double x1, double y1, + double x2, double y2, + double radius) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->arc_to (cr, x1, y1, x2, y2, radius); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +void +cairo_rel_arc_to (cairo_t *cr, + double dx1, double dy1, + double dx2, double dy2, + double radius) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->rel_arc_to (cr, dx1, dy1, dx2, dy2, radius); + if (unlikely (status)) + _cairo_set_error (cr, status); +} +*/ + +/** + * cairo_rel_move_to: + * @cr: a cairo context + * @dx: the X offset + * @dy: the Y offset + * + * Begin a new sub-path. After this call the current point will offset + * by (@x, @y). + * + * Given a current point of (x, y), cairo_rel_move_to(@cr, @dx, @dy) + * is logically equivalent to cairo_move_to(@cr, x + @dx, y + @dy). + * + * It is an error to call this function with no current point. Doing + * so will cause @cr to shutdown with a status of + * %CAIRO_STATUS_NO_CURRENT_POINT. + * + * Since: 1.0 + **/ +void +cairo_rel_move_to (cairo_t *cr, double dx, double dy) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->rel_move_to (cr, dx, dy); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_rel_line_to: + * @cr: a cairo context + * @dx: the X offset to the end of the new line + * @dy: the Y offset to the end of the new line + * + * Relative-coordinate version of cairo_line_to(). Adds a line to the + * path from the current point to a point that is offset from the + * current point by (@dx, @dy) in user space. After this call the + * current point will be offset by (@dx, @dy). + * + * Given a current point of (x, y), cairo_rel_line_to(@cr, @dx, @dy) + * is logically equivalent to cairo_line_to(@cr, x + @dx, y + @dy). + * + * It is an error to call this function with no current point. Doing + * so will cause @cr to shutdown with a status of + * %CAIRO_STATUS_NO_CURRENT_POINT. + * + * Since: 1.0 + **/ +void +cairo_rel_line_to (cairo_t *cr, double dx, double dy) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->rel_line_to (cr, dx, dy); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_rel_curve_to: + * @cr: a cairo context + * @dx1: the X offset to the first control point + * @dy1: the Y offset to the first control point + * @dx2: the X offset to the second control point + * @dy2: the Y offset to the second control point + * @dx3: the X offset to the end of the curve + * @dy3: the Y offset to the end of the curve + * + * Relative-coordinate version of cairo_curve_to(). All offsets are + * relative to the current point. Adds a cubic Bézier spline to the + * path from the current point to a point offset from the current + * point by (@dx3, @dy3), using points offset by (@dx1, @dy1) and + * (@dx2, @dy2) as the control points. After this call the current + * point will be offset by (@dx3, @dy3). + * + * Given a current point of (x, y), cairo_rel_curve_to(@cr, @dx1, + * @dy1, @dx2, @dy2, @dx3, @dy3) is logically equivalent to + * cairo_curve_to(@cr, x+@dx1, y+@dy1, x+@dx2, y+@dy2, x+@dx3, y+@dy3). + * + * It is an error to call this function with no current point. Doing + * so will cause @cr to shutdown with a status of + * %CAIRO_STATUS_NO_CURRENT_POINT. + * + * Since: 1.0 + **/ +void +cairo_rel_curve_to (cairo_t *cr, + double dx1, double dy1, + double dx2, double dy2, + double dx3, double dy3) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->rel_curve_to (cr, + dx1, dy1, + dx2, dy2, + dx3, dy3); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_rectangle: + * @cr: a cairo context + * @x: the X coordinate of the top left corner of the rectangle + * @y: the Y coordinate to the top left corner of the rectangle + * @width: the width of the rectangle + * @height: the height of the rectangle + * + * Adds a closed sub-path rectangle of the given size to the current + * path at position (@x, @y) in user-space coordinates. + * + * This function is logically equivalent to: + * + * cairo_move_to (cr, x, y); + * cairo_rel_line_to (cr, width, 0); + * cairo_rel_line_to (cr, 0, height); + * cairo_rel_line_to (cr, -width, 0); + * cairo_close_path (cr); + * + * + * Since: 1.0 + **/ +void +cairo_rectangle (cairo_t *cr, + double x, double y, + double width, double height) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->rectangle (cr, x, y, width, height); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +#if 0 +/* XXX: NYI */ +void +cairo_stroke_to_path (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + /* The code in _cairo_recording_surface_get_path has a poorman's stroke_to_path */ + + status = _cairo_gstate_stroke_path (cr->gstate); + if (unlikely (status)) + _cairo_set_error (cr, status); +} +#endif + +/** + * cairo_close_path: + * @cr: a cairo context + * + * Adds a line segment to the path from the current point to the + * beginning of the current sub-path, (the most recent point passed to + * cairo_move_to()), and closes this sub-path. After this call the + * current point will be at the joined endpoint of the sub-path. + * + * The behavior of cairo_close_path() is distinct from simply calling + * cairo_line_to() with the equivalent coordinate in the case of + * stroking. When a closed sub-path is stroked, there are no caps on + * the ends of the sub-path. Instead, there is a line join connecting + * the final and initial segments of the sub-path. + * + * If there is no current point before the call to cairo_close_path(), + * this function will have no effect. + * + * Note: As of cairo version 1.2.4 any call to cairo_close_path() will + * place an explicit MOVE_TO element into the path immediately after + * the CLOSE_PATH element, (which can be seen in cairo_copy_path() for + * example). This can simplify path processing in some cases as it may + * not be necessary to save the "last move_to point" during processing + * as the MOVE_TO immediately after the CLOSE_PATH will provide that + * point. + * + * Since: 1.0 + **/ +void +cairo_close_path (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->close_path (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_path_extents: + * @cr: a cairo context + * @x1: left of the resulting extents + * @y1: top of the resulting extents + * @x2: right of the resulting extents + * @y2: bottom of the resulting extents + * + * Computes a bounding box in user-space coordinates covering the + * points on the current path. If the current path is empty, returns + * an empty rectangle ((0,0), (0,0)). Stroke parameters, fill rule, + * surface dimensions and clipping are not taken into account. + * + * Contrast with cairo_fill_extents() and cairo_stroke_extents() which + * return the extents of only the area that would be "inked" by + * the corresponding drawing operations. + * + * The result of cairo_path_extents() is defined as equivalent to the + * limit of cairo_stroke_extents() with %CAIRO_LINE_CAP_ROUND as the + * line width approaches 0.0, (but never reaching the empty-rectangle + * returned by cairo_stroke_extents() for a line width of 0.0). + * + * Specifically, this means that zero-area sub-paths such as + * cairo_move_to();cairo_line_to() segments, (even degenerate cases + * where the coordinates to both calls are identical), will be + * considered as contributing to the extents. However, a lone + * cairo_move_to() will not contribute to the results of + * cairo_path_extents(). + * + * Since: 1.6 + **/ +void +cairo_path_extents (cairo_t *cr, + double *x1, double *y1, double *x2, double *y2) +{ + if (unlikely (cr->status)) { + if (x1) + *x1 = 0.0; + if (y1) + *y1 = 0.0; + if (x2) + *x2 = 0.0; + if (y2) + *y2 = 0.0; + + return; + } + + cr->backend->path_extents (cr, x1, y1, x2, y2); +} + +/** + * cairo_paint: + * @cr: a cairo context + * + * A drawing operator that paints the current source everywhere within + * the current clip region. + * + * Since: 1.0 + **/ +void +cairo_paint (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->paint (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_paint_with_alpha: + * @cr: a cairo context + * @alpha: alpha value, between 0 (transparent) and 1 (opaque) + * + * A drawing operator that paints the current source everywhere within + * the current clip region using a mask of constant alpha value + * @alpha. The effect is similar to cairo_paint(), but the drawing + * is faded out using the alpha value. + * + * Since: 1.0 + **/ +void +cairo_paint_with_alpha (cairo_t *cr, + double alpha) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->paint_with_alpha (cr, alpha); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_mask: + * @cr: a cairo context + * @pattern: a #cairo_pattern_t + * + * A drawing operator that paints the current source + * using the alpha channel of @pattern as a mask. (Opaque + * areas of @pattern are painted with the source, transparent + * areas are not painted.) + * + * Since: 1.0 + **/ +void +cairo_mask (cairo_t *cr, + cairo_pattern_t *pattern) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + if (unlikely (pattern == NULL)) { + _cairo_set_error (cr, CAIRO_STATUS_NULL_POINTER); + return; + } + + if (unlikely (pattern->status)) { + _cairo_set_error (cr, pattern->status); + return; + } + + status = cr->backend->mask (cr, pattern); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_mask_surface: + * @cr: a cairo context + * @surface: a #cairo_surface_t + * @surface_x: X coordinate at which to place the origin of @surface + * @surface_y: Y coordinate at which to place the origin of @surface + * + * A drawing operator that paints the current source + * using the alpha channel of @surface as a mask. (Opaque + * areas of @surface are painted with the source, transparent + * areas are not painted.) + * + * Since: 1.0 + **/ +void +cairo_mask_surface (cairo_t *cr, + cairo_surface_t *surface, + double surface_x, + double surface_y) +{ + cairo_pattern_t *pattern; + cairo_matrix_t matrix; + + if (unlikely (cr->status)) + return; + + pattern = cairo_pattern_create_for_surface (surface); + + cairo_matrix_init_translate (&matrix, - surface_x, - surface_y); + cairo_pattern_set_matrix (pattern, &matrix); + + cairo_mask (cr, pattern); + + cairo_pattern_destroy (pattern); +} + +/** + * cairo_stroke: + * @cr: a cairo context + * + * A drawing operator that strokes the current path according to the + * current line width, line join, line cap, and dash settings. After + * cairo_stroke(), the current path will be cleared from the cairo + * context. See cairo_set_line_width(), cairo_set_line_join(), + * cairo_set_line_cap(), cairo_set_dash(), and + * cairo_stroke_preserve(). + * + * Note: Degenerate segments and sub-paths are treated specially and + * provide a useful result. These can result in two different + * situations: + * + * 1. Zero-length "on" segments set in cairo_set_dash(). If the cap + * style is %CAIRO_LINE_CAP_ROUND or %CAIRO_LINE_CAP_SQUARE then these + * segments will be drawn as circular dots or squares respectively. In + * the case of %CAIRO_LINE_CAP_SQUARE, the orientation of the squares + * is determined by the direction of the underlying path. + * + * 2. A sub-path created by cairo_move_to() followed by either a + * cairo_close_path() or one or more calls to cairo_line_to() to the + * same coordinate as the cairo_move_to(). If the cap style is + * %CAIRO_LINE_CAP_ROUND then these sub-paths will be drawn as circular + * dots. Note that in the case of %CAIRO_LINE_CAP_SQUARE a degenerate + * sub-path will not be drawn at all, (since the correct orientation + * is indeterminate). + * + * In no case will a cap style of %CAIRO_LINE_CAP_BUTT cause anything + * to be drawn in the case of either degenerate segments or sub-paths. + * + * Since: 1.0 + **/ +void +cairo_stroke (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->stroke (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_stroke_preserve: + * @cr: a cairo context + * + * A drawing operator that strokes the current path according to the + * current line width, line join, line cap, and dash settings. Unlike + * cairo_stroke(), cairo_stroke_preserve() preserves the path within the + * cairo context. + * + * See cairo_set_line_width(), cairo_set_line_join(), + * cairo_set_line_cap(), cairo_set_dash(), and + * cairo_stroke_preserve(). + * + * Since: 1.0 + **/ +void +cairo_stroke_preserve (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->stroke_preserve (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_fill: + * @cr: a cairo context + * + * A drawing operator that fills the current path according to the + * current fill rule, (each sub-path is implicitly closed before being + * filled). After cairo_fill(), the current path will be cleared from + * the cairo context. See cairo_set_fill_rule() and + * cairo_fill_preserve(). + * + * Since: 1.0 + **/ +void +cairo_fill (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->fill (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_fill_preserve: + * @cr: a cairo context + * + * A drawing operator that fills the current path according to the + * current fill rule, (each sub-path is implicitly closed before being + * filled). Unlike cairo_fill(), cairo_fill_preserve() preserves the + * path within the cairo context. + * + * See cairo_set_fill_rule() and cairo_fill(). + * + * Since: 1.0 + **/ +void +cairo_fill_preserve (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->fill_preserve (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_copy_page: + * @cr: a cairo context + * + * Emits the current page for backends that support multiple pages, but + * doesn't clear it, so, the contents of the current page will be retained + * for the next page too. Use cairo_show_page() if you want to get an + * empty page after the emission. + * + * This is a convenience function that simply calls + * cairo_surface_copy_page() on @cr's target. + * + * Since: 1.0 + **/ +void +cairo_copy_page (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->copy_page (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_show_page: + * @cr: a cairo context + * + * Emits and clears the current page for backends that support multiple + * pages. Use cairo_copy_page() if you don't want to clear the page. + * + * This is a convenience function that simply calls + * cairo_surface_show_page() on @cr's target. + * + * Since: 1.0 + **/ +void +cairo_show_page (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->show_page (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_in_stroke: + * @cr: a cairo context + * @x: X coordinate of the point to test + * @y: Y coordinate of the point to test + * + * Tests whether the given point is inside the area that would be + * affected by a cairo_stroke() operation given the current path and + * stroking parameters. Surface dimensions and clipping are not taken + * into account. + * + * See cairo_stroke(), cairo_set_line_width(), cairo_set_line_join(), + * cairo_set_line_cap(), cairo_set_dash(), and + * cairo_stroke_preserve(). + * + * Return value: A non-zero value if the point is inside, or zero if + * outside. + * + * Since: 1.0 + **/ +cairo_bool_t +cairo_in_stroke (cairo_t *cr, double x, double y) +{ + cairo_status_t status; + cairo_bool_t inside = FALSE; + + if (unlikely (cr->status)) + return FALSE; + + status = cr->backend->in_stroke (cr, x, y, &inside); + if (unlikely (status)) + _cairo_set_error (cr, status); + + return inside; +} + +/** + * cairo_in_fill: + * @cr: a cairo context + * @x: X coordinate of the point to test + * @y: Y coordinate of the point to test + * + * Tests whether the given point is inside the area that would be + * affected by a cairo_fill() operation given the current path and + * filling parameters. Surface dimensions and clipping are not taken + * into account. + * + * See cairo_fill(), cairo_set_fill_rule() and cairo_fill_preserve(). + * + * Return value: A non-zero value if the point is inside, or zero if + * outside. + * + * Since: 1.0 + **/ +cairo_bool_t +cairo_in_fill (cairo_t *cr, double x, double y) +{ + cairo_status_t status; + cairo_bool_t inside = FALSE; + + if (unlikely (cr->status)) + return FALSE; + + status = cr->backend->in_fill (cr, x, y, &inside); + if (unlikely (status)) + _cairo_set_error (cr, status); + + return inside; +} + +/** + * cairo_stroke_extents: + * @cr: a cairo context + * @x1: left of the resulting extents + * @y1: top of the resulting extents + * @x2: right of the resulting extents + * @y2: bottom of the resulting extents + * + * Computes a bounding box in user coordinates covering the area that + * would be affected, (the "inked" area), by a cairo_stroke() + * operation given the current path and stroke parameters. + * If the current path is empty, returns an empty rectangle ((0,0), (0,0)). + * Surface dimensions and clipping are not taken into account. + * + * Note that if the line width is set to exactly zero, then + * cairo_stroke_extents() will return an empty rectangle. Contrast with + * cairo_path_extents() which can be used to compute the non-empty + * bounds as the line width approaches zero. + * + * Note that cairo_stroke_extents() must necessarily do more work to + * compute the precise inked areas in light of the stroke parameters, + * so cairo_path_extents() may be more desirable for sake of + * performance if non-inked path extents are desired. + * + * See cairo_stroke(), cairo_set_line_width(), cairo_set_line_join(), + * cairo_set_line_cap(), cairo_set_dash(), and + * cairo_stroke_preserve(). + * + * Since: 1.0 + **/ +void +cairo_stroke_extents (cairo_t *cr, + double *x1, double *y1, double *x2, double *y2) +{ + cairo_status_t status; + + if (unlikely (cr->status)) { + if (x1) + *x1 = 0.0; + if (y1) + *y1 = 0.0; + if (x2) + *x2 = 0.0; + if (y2) + *y2 = 0.0; + + return; + } + + status = cr->backend->stroke_extents (cr, x1, y1, x2, y2); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_fill_extents: + * @cr: a cairo context + * @x1: left of the resulting extents + * @y1: top of the resulting extents + * @x2: right of the resulting extents + * @y2: bottom of the resulting extents + * + * Computes a bounding box in user coordinates covering the area that + * would be affected, (the "inked" area), by a cairo_fill() operation + * given the current path and fill parameters. If the current path is + * empty, returns an empty rectangle ((0,0), (0,0)). Surface + * dimensions and clipping are not taken into account. + * + * Contrast with cairo_path_extents(), which is similar, but returns + * non-zero extents for some paths with no inked area, (such as a + * simple line segment). + * + * Note that cairo_fill_extents() must necessarily do more work to + * compute the precise inked areas in light of the fill rule, so + * cairo_path_extents() may be more desirable for sake of performance + * if the non-inked path extents are desired. + * + * See cairo_fill(), cairo_set_fill_rule() and cairo_fill_preserve(). + * + * Since: 1.0 + **/ +void +cairo_fill_extents (cairo_t *cr, + double *x1, double *y1, double *x2, double *y2) +{ + cairo_status_t status; + + if (unlikely (cr->status)) { + if (x1) + *x1 = 0.0; + if (y1) + *y1 = 0.0; + if (x2) + *x2 = 0.0; + if (y2) + *y2 = 0.0; + + return; + } + + status = cr->backend->fill_extents (cr, x1, y1, x2, y2); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_clip: + * @cr: a cairo context + * + * Establishes a new clip region by intersecting the current clip + * region with the current path as it would be filled by cairo_fill() + * and according to the current fill rule (see cairo_set_fill_rule()). + * + * After cairo_clip(), the current path will be cleared from the cairo + * context. + * + * The current clip region affects all drawing operations by + * effectively masking out any changes to the surface that are outside + * the current clip region. + * + * Calling cairo_clip() can only make the clip region smaller, never + * larger. But the current clip is part of the graphics state, so a + * temporary restriction of the clip region can be achieved by + * calling cairo_clip() within a cairo_save()/cairo_restore() + * pair. The only other means of increasing the size of the clip + * region is cairo_reset_clip(). + * + * Since: 1.0 + **/ +void +cairo_clip (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->clip (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_clip_preserve: + * @cr: a cairo context + * + * Establishes a new clip region by intersecting the current clip + * region with the current path as it would be filled by cairo_fill() + * and according to the current fill rule (see cairo_set_fill_rule()). + * + * Unlike cairo_clip(), cairo_clip_preserve() preserves the path within + * the cairo context. + * + * The current clip region affects all drawing operations by + * effectively masking out any changes to the surface that are outside + * the current clip region. + * + * Calling cairo_clip_preserve() can only make the clip region smaller, never + * larger. But the current clip is part of the graphics state, so a + * temporary restriction of the clip region can be achieved by + * calling cairo_clip_preserve() within a cairo_save()/cairo_restore() + * pair. The only other means of increasing the size of the clip + * region is cairo_reset_clip(). + * + * Since: 1.0 + **/ +void +cairo_clip_preserve (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->clip_preserve (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_reset_clip: + * @cr: a cairo context + * + * Reset the current clip region to its original, unrestricted + * state. That is, set the clip region to an infinitely large shape + * containing the target surface. Equivalently, if infinity is too + * hard to grasp, one can imagine the clip region being reset to the + * exact bounds of the target surface. + * + * Note that code meant to be reusable should not call + * cairo_reset_clip() as it will cause results unexpected by + * higher-level code which calls cairo_clip(). Consider using + * cairo_save() and cairo_restore() around cairo_clip() as a more + * robust means of temporarily restricting the clip region. + * + * Since: 1.0 + **/ +void +cairo_reset_clip (cairo_t *cr) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->reset_clip (cr); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_clip_extents: + * @cr: a cairo context + * @x1: left of the resulting extents + * @y1: top of the resulting extents + * @x2: right of the resulting extents + * @y2: bottom of the resulting extents + * + * Computes a bounding box in user coordinates covering the area inside the + * current clip. + * + * Since: 1.4 + **/ +void +cairo_clip_extents (cairo_t *cr, + double *x1, double *y1, + double *x2, double *y2) +{ + cairo_status_t status; + + if (x1) + *x1 = 0.0; + if (y1) + *y1 = 0.0; + if (x2) + *x2 = 0.0; + if (y2) + *y2 = 0.0; + + if (unlikely (cr->status)) + return; + + status = cr->backend->clip_extents (cr, x1, y1, x2, y2); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_in_clip: + * @cr: a cairo context + * @x: X coordinate of the point to test + * @y: Y coordinate of the point to test + * + * Tests whether the given point is inside the area that would be + * visible through the current clip, i.e. the area that would be filled by + * a cairo_paint() operation. + * + * See cairo_clip(), and cairo_clip_preserve(). + * + * Return value: A non-zero value if the point is inside, or zero if + * outside. + * + * Since: 1.10 + **/ +cairo_bool_t +cairo_in_clip (cairo_t *cr, double x, double y) +{ + cairo_status_t status; + cairo_bool_t inside = FALSE; + + if (unlikely (cr->status)) + return FALSE; + + status = cr->backend->in_clip (cr, x, y, &inside); + if (unlikely (status)) + _cairo_set_error (cr, status); + + return inside; +} + +/** + * cairo_copy_clip_rectangle_list: + * @cr: a cairo context + * + * Gets the current clip region as a list of rectangles in user coordinates. + * Never returns %NULL. + * + * The status in the list may be %CAIRO_STATUS_CLIP_NOT_REPRESENTABLE to + * indicate that the clip region cannot be represented as a list of + * user-space rectangles. The status may have other values to indicate + * other errors. + * + * Returns: the current clip region as a list of rectangles in user coordinates, + * which should be destroyed using cairo_rectangle_list_destroy(). + * + * Since: 1.4 + **/ +cairo_rectangle_list_t * +cairo_copy_clip_rectangle_list (cairo_t *cr) +{ + if (unlikely (cr->status)) + return _cairo_rectangle_list_create_in_error (cr->status); + + return cr->backend->clip_copy_rectangle_list (cr); +} + +/** + * CAIRO_TAG_DEST: + * + * Create a destination for a hyperlink. Destination tag attributes + * are detailed at [Destinations][dest]. + * + * Since: 1.16 + **/ + +/** + * CAIRO_TAG_LINK: + * + * Create hyperlink. Link tag attributes are detailed at + * [Links][link]. + * + * Since: 1.16 + **/ + +/** + * CAIRO_TAG_CONTENT: + * + * Create a content tag. + * + * Since: 1.18 + **/ + +/** + * CAIRO_TAG_CONTENT_REF: + * + * Create a content reference tag. + * + * Since: 1.18 + **/ + +/** + * cairo_tag_begin: + * @cr: a cairo context + * @tag_name: tag name + * @attributes: tag attributes + * + * Marks the beginning of the @tag_name structure. Call + * cairo_tag_end() with the same @tag_name to mark the end of the + * structure. + * + * The attributes string is of the form "key1=value2 key2=value2 ...". + * Values may be boolean (true/false or 1/0), integer, float, string, + * or an array. + * + * String values are enclosed in single quotes + * ('). Single quotes and backslashes inside the string should be + * escaped with a backslash. + * + * Boolean values may be set to true by only + * specifying the key. eg the attribute string "key" is the equivalent + * to "key=true". + * + * Arrays are enclosed in '[]'. eg "rect=[1.2 4.3 2.0 3.0]". + * + * If no attributes are required, @attributes can be an empty string or NULL. + * + * See [Tags and Links Description][cairo-Tags-and-Links.description] + * for the list of tags and attributes. + * + * Invalid nesting of tags or invalid attributes will cause @cr to + * shutdown with a status of %CAIRO_STATUS_TAG_ERROR. + * + * See cairo_tag_end(). + * + * Since: 1.16 + **/ +void +cairo_tag_begin (cairo_t *cr, const char *tag_name, const char *attributes) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->tag_begin (cr, tag_name, attributes); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_tag_end: + * @cr: a cairo context + * @tag_name: tag name + * + * Marks the end of the @tag_name structure. + * + * Invalid nesting of tags will cause @cr to shutdown with a status of + * %CAIRO_STATUS_TAG_ERROR. + * + * See cairo_tag_begin(). + * + * Since: 1.16 + **/ +cairo_public void +cairo_tag_end (cairo_t *cr, const char *tag_name) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->tag_end (cr, tag_name); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_select_font_face: + * @cr: a #cairo_t + * @family: a font family name, encoded in UTF-8 + * @slant: the slant for the font + * @weight: the weight for the font + * + * Note: The cairo_select_font_face() function call is part of what + * the cairo designers call the "toy" text API. It is convenient for + * short demos and simple programs, but it is not expected to be + * adequate for serious text-using applications. + * + * Selects a family and style of font from a simplified description as + * a family name, slant and weight. Cairo provides no operation to + * list available family names on the system (this is a "toy", + * remember), but the standard CSS2 generic family names, ("serif", + * "sans-serif", "cursive", "fantasy", "monospace"), are likely to + * work as expected. + * + * If @family starts with the string "\@cairo:", or if no native font + * backends are compiled in, cairo will use an internal font family. + * The internal font family recognizes many modifiers in the @family + * string, most notably, it recognizes the string "monospace". That is, + * the family name "\@cairo:monospace" will use the monospace version of + * the internal font family. + * + * For "real" font selection, see the font-backend-specific + * font_face_create functions for the font backend you are using. (For + * example, if you are using the freetype-based cairo-ft font backend, + * see cairo_ft_font_face_create_for_ft_face() or + * cairo_ft_font_face_create_for_pattern().) The resulting font face + * could then be used with cairo_scaled_font_create() and + * cairo_set_scaled_font(). + * + * Similarly, when using the "real" font support, you can call + * directly into the underlying font system, (such as fontconfig or + * freetype), for operations such as listing available fonts, etc. + * + * It is expected that most applications will need to use a more + * comprehensive font handling and text layout library, (for example, + * pango), in conjunction with cairo. + * + * If text is drawn without a call to cairo_select_font_face(), (nor + * cairo_set_font_face() nor cairo_set_scaled_font()), the default + * family is platform-specific, but is essentially "sans-serif". + * Default slant is %CAIRO_FONT_SLANT_NORMAL, and default weight is + * %CAIRO_FONT_WEIGHT_NORMAL. + * + * This function is equivalent to a call to cairo_toy_font_face_create() + * followed by cairo_set_font_face(). + * + * Since: 1.0 + **/ +void +cairo_select_font_face (cairo_t *cr, + const char *family, + cairo_font_slant_t slant, + cairo_font_weight_t weight) +{ + cairo_font_face_t *font_face; + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + font_face = cairo_toy_font_face_create (family, slant, weight); + if (unlikely (font_face->status)) { + _cairo_set_error (cr, font_face->status); + return; + } + + status = cr->backend->set_font_face (cr, font_face); + cairo_font_face_destroy (font_face); + + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_font_extents: + * @cr: a #cairo_t + * @extents: a #cairo_font_extents_t object into which the results + * will be stored. + * + * Gets the font extents for the currently selected font. + * + * Since: 1.0 + **/ +void +cairo_font_extents (cairo_t *cr, + cairo_font_extents_t *extents) +{ + cairo_status_t status; + + extents->ascent = 0.0; + extents->descent = 0.0; + extents->height = 0.0; + extents->max_x_advance = 0.0; + extents->max_y_advance = 0.0; + + if (unlikely (cr->status)) + return; + + status = cr->backend->font_extents (cr, extents); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_set_font_face: + * @cr: a #cairo_t + * @font_face: a #cairo_font_face_t, or %NULL to restore to the default font + * + * Replaces the current #cairo_font_face_t object in the #cairo_t with + * @font_face. The replaced font face in the #cairo_t will be + * destroyed if there are no other references to it. + * + * Since: 1.0 + **/ +void +cairo_set_font_face (cairo_t *cr, + cairo_font_face_t *font_face) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_font_face (cr, font_face); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_get_font_face: + * @cr: a #cairo_t + * + * Gets the current font face for a #cairo_t. + * + * Return value: the current font face. This object is owned by + * cairo. To keep a reference to it, you must call + * cairo_font_face_reference(). + * + * This function never returns %NULL. If memory cannot be allocated, a + * special "nil" #cairo_font_face_t object will be returned on which + * cairo_font_face_status() returns %CAIRO_STATUS_NO_MEMORY. Using + * this nil object will cause its error state to propagate to other + * objects it is passed to, (for example, calling + * cairo_set_font_face() with a nil font will trigger an error that + * will shutdown the #cairo_t object). + * + * Since: 1.0 + **/ +cairo_font_face_t * +cairo_get_font_face (cairo_t *cr) +{ + if (unlikely (cr->status)) + return (cairo_font_face_t*) &_cairo_font_face_nil; + + return cr->backend->get_font_face (cr); +} + +/** + * cairo_set_font_size: + * @cr: a #cairo_t + * @size: the new font size, in user space units + * + * Sets the current font matrix to a scale by a factor of @size, replacing + * any font matrix previously set with cairo_set_font_size() or + * cairo_set_font_matrix(). This results in a font size of @size user space + * units. (More precisely, this matrix will result in the font's + * em-square being a @size by @size square in user space.) + * + * If text is drawn without a call to cairo_set_font_size(), (nor + * cairo_set_font_matrix() nor cairo_set_scaled_font()), the default + * font size is 10.0. + * + * Since: 1.0 + **/ +void +cairo_set_font_size (cairo_t *cr, double size) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_font_size (cr, size); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_set_font_matrix: + * @cr: a #cairo_t + * @matrix: a #cairo_matrix_t describing a transform to be applied to + * the current font. + * + * Sets the current font matrix to @matrix. The font matrix gives a + * transformation from the design space of the font (in this space, + * the em-square is 1 unit by 1 unit) to user space. Normally, a + * simple scale is used (see cairo_set_font_size()), but a more + * complex font matrix can be used to shear the font + * or stretch it unequally along the two axes + * + * Since: 1.0 + **/ +void +cairo_set_font_matrix (cairo_t *cr, + const cairo_matrix_t *matrix) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cr->backend->set_font_matrix (cr, matrix); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_get_font_matrix: + * @cr: a #cairo_t + * @matrix: return value for the matrix + * + * Stores the current font matrix into @matrix. See + * cairo_set_font_matrix(). + * + * Since: 1.0 + **/ +void +cairo_get_font_matrix (cairo_t *cr, cairo_matrix_t *matrix) +{ + if (unlikely (cr->status)) { + cairo_matrix_init_identity (matrix); + return; + } + + cr->backend->get_font_matrix (cr, matrix); +} + +/** + * cairo_set_font_options: + * @cr: a #cairo_t + * @options: font options to use + * + * Sets a set of custom font rendering options for the #cairo_t. + * Rendering options are derived by merging these options with the + * options derived from underlying surface; if the value in @options + * has a default value (like %CAIRO_ANTIALIAS_DEFAULT), then the value + * from the surface is used. + * + * Since: 1.0 + **/ +void +cairo_set_font_options (cairo_t *cr, + const cairo_font_options_t *options) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + status = cairo_font_options_status ((cairo_font_options_t *) options); + if (unlikely (status)) { + _cairo_set_error (cr, status); + return; + } + + status = cr->backend->set_font_options (cr, options); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_get_font_options: + * @cr: a #cairo_t + * @options: a #cairo_font_options_t object into which to store + * the retrieved options. All existing values are overwritten + * + * Retrieves font rendering options set via #cairo_set_font_options. + * Note that the returned options do not include any options derived + * from the underlying surface; they are literally the options + * passed to cairo_set_font_options(). + * + * Since: 1.0 + **/ +void +cairo_get_font_options (cairo_t *cr, + cairo_font_options_t *options) +{ + /* check that we aren't trying to overwrite the nil object */ + if (cairo_font_options_status (options)) + return; + + if (unlikely (cr->status)) { + _cairo_font_options_init_default (options); + return; + } + + cr->backend->get_font_options (cr, options); +} + +/** + * cairo_set_scaled_font: + * @cr: a #cairo_t + * @scaled_font: a #cairo_scaled_font_t + * + * Replaces the current font face, font matrix, and font options in + * the #cairo_t with those of the #cairo_scaled_font_t. Except for + * some translation, the current CTM of the #cairo_t should be the + * same as that of the #cairo_scaled_font_t, which can be accessed + * using cairo_scaled_font_get_ctm(). + * + * Since: 1.2 + **/ +void +cairo_set_scaled_font (cairo_t *cr, + const cairo_scaled_font_t *scaled_font) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + if (scaled_font == NULL) { + _cairo_set_error (cr, _cairo_error (CAIRO_STATUS_NULL_POINTER)); + return; + } + + status = scaled_font->status; + if (unlikely (status)) { + _cairo_set_error (cr, status); + return; + } + + status = cr->backend->set_scaled_font (cr, (cairo_scaled_font_t *) scaled_font); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_get_scaled_font: + * @cr: a #cairo_t + * + * Gets the current scaled font for a #cairo_t. + * + * Return value: the current scaled font. This object is owned by + * cairo. To keep a reference to it, you must call + * cairo_scaled_font_reference(). + * + * This function never returns %NULL. If memory cannot be allocated, a + * special "nil" #cairo_scaled_font_t object will be returned on which + * cairo_scaled_font_status() returns %CAIRO_STATUS_NO_MEMORY. Using + * this nil object will cause its error state to propagate to other + * objects it is passed to, (for example, calling + * cairo_set_scaled_font() with a nil font will trigger an error that + * will shutdown the #cairo_t object). + * + * Since: 1.4 + **/ +cairo_scaled_font_t * +cairo_get_scaled_font (cairo_t *cr) +{ + if (unlikely (cr->status)) + return _cairo_scaled_font_create_in_error (cr->status); + + return cr->backend->get_scaled_font (cr); +} + +/** + * cairo_text_extents: + * @cr: a #cairo_t + * @utf8: a NUL-terminated string of text encoded in UTF-8, or %NULL + * @extents: a #cairo_text_extents_t object into which the results + * will be stored + * + * Gets the extents for a string of text. The extents describe a + * user-space rectangle that encloses the "inked" portion of the text, + * (as it would be drawn by cairo_show_text()). Additionally, the + * x_advance and y_advance values indicate the amount by which the + * current point would be advanced by cairo_show_text(). + * + * Note that whitespace characters do not directly contribute to the + * size of the rectangle (extents.width and extents.height). They do + * contribute indirectly by changing the position of non-whitespace + * characters. In particular, trailing whitespace characters are + * likely to not affect the size of the rectangle, though they will + * affect the x_advance and y_advance values. + * + * Since: 1.0 + **/ +void +cairo_text_extents (cairo_t *cr, + const char *utf8, + cairo_text_extents_t *extents) +{ + cairo_status_t status; + cairo_scaled_font_t *scaled_font; + cairo_glyph_t *glyphs = NULL; + int num_glyphs = 0; + double x, y; + + extents->x_bearing = 0.0; + extents->y_bearing = 0.0; + extents->width = 0.0; + extents->height = 0.0; + extents->x_advance = 0.0; + extents->y_advance = 0.0; + + if (unlikely (cr->status)) + return; + + if (utf8 == NULL) + return; + + scaled_font = cairo_get_scaled_font (cr); + if (unlikely (scaled_font->status)) { + _cairo_set_error (cr, scaled_font->status); + return; + } + + cairo_get_current_point (cr, &x, &y); + status = cairo_scaled_font_text_to_glyphs (scaled_font, + x, y, + utf8, -1, + &glyphs, &num_glyphs, + NULL, NULL, NULL); + + if (likely (status == CAIRO_STATUS_SUCCESS)) { + status = cr->backend->glyph_extents (cr, + glyphs, num_glyphs, + extents); + } + cairo_glyph_free (glyphs); + + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_glyph_extents: + * @cr: a #cairo_t + * @glyphs: an array of #cairo_glyph_t objects + * @num_glyphs: the number of elements in @glyphs + * @extents: a #cairo_text_extents_t object into which the results + * will be stored + * + * Gets the extents for an array of glyphs. The extents describe a + * user-space rectangle that encloses the "inked" portion of the + * glyphs, (as they would be drawn by cairo_show_glyphs()). + * Additionally, the x_advance and y_advance values indicate the + * amount by which the current point would be advanced by + * cairo_show_glyphs(). + * + * Note that whitespace glyphs do not contribute to the size of the + * rectangle (extents.width and extents.height). + * + * Since: 1.0 + **/ +void +cairo_glyph_extents (cairo_t *cr, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_text_extents_t *extents) +{ + cairo_status_t status; + + extents->x_bearing = 0.0; + extents->y_bearing = 0.0; + extents->width = 0.0; + extents->height = 0.0; + extents->x_advance = 0.0; + extents->y_advance = 0.0; + + if (unlikely (cr->status)) + return; + + if (num_glyphs == 0) + return; + + if (unlikely (num_glyphs < 0)) { + _cairo_set_error (cr, CAIRO_STATUS_NEGATIVE_COUNT); + return; + } + + if (unlikely (glyphs == NULL)) { + _cairo_set_error (cr, CAIRO_STATUS_NULL_POINTER); + return; + } + + status = cr->backend->glyph_extents (cr, glyphs, num_glyphs, extents); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_show_text: + * @cr: a cairo context + * @utf8: a NUL-terminated string of text encoded in UTF-8, or %NULL + * + * A drawing operator that generates the shape from a string of UTF-8 + * characters, rendered according to the current font_face, font_size + * (font_matrix), and font_options. + * + * This function first computes a set of glyphs for the string of + * text. The first glyph is placed so that its origin is at the + * current point. The origin of each subsequent glyph is offset from + * that of the previous glyph by the advance values of the previous + * glyph. + * + * After this call the current point is moved to the origin of where + * the next glyph would be placed in this same progression. That is, + * the current point will be at the origin of the final glyph offset + * by its advance values. This allows for easy display of a single + * logical string with multiple calls to cairo_show_text(). + * + * Note: The cairo_show_text() function call is part of what the cairo + * designers call the "toy" text API. It is convenient for short demos + * and simple programs, but it is not expected to be adequate for + * serious text-using applications. See cairo_show_glyphs() for the + * "real" text display API in cairo. + * + * Since: 1.0 + **/ +void +cairo_show_text (cairo_t *cr, const char *utf8) +{ + cairo_text_extents_t extents; + cairo_status_t status; + cairo_glyph_t *glyphs, *last_glyph; + cairo_text_cluster_t *clusters; + int utf8_len, num_glyphs, num_clusters; + cairo_text_cluster_flags_t cluster_flags; + double x, y; + cairo_bool_t has_show_text_glyphs; + cairo_glyph_t stack_glyphs[CAIRO_STACK_ARRAY_LENGTH (cairo_glyph_t)]; + cairo_text_cluster_t stack_clusters[CAIRO_STACK_ARRAY_LENGTH (cairo_text_cluster_t)]; + cairo_scaled_font_t *scaled_font; + cairo_glyph_text_info_t info, *i; + + if (unlikely (cr->status)) + return; + + if (utf8 == NULL) + return; + + scaled_font = cairo_get_scaled_font (cr); + if (unlikely (scaled_font->status)) { + _cairo_set_error (cr, scaled_font->status); + return; + } + + utf8_len = strlen (utf8); + + has_show_text_glyphs = + cairo_surface_has_show_text_glyphs (cairo_get_target (cr)); + + glyphs = stack_glyphs; + num_glyphs = ARRAY_LENGTH (stack_glyphs); + + if (has_show_text_glyphs) { + clusters = stack_clusters; + num_clusters = ARRAY_LENGTH (stack_clusters); + } else { + clusters = NULL; + num_clusters = 0; + } + + cairo_get_current_point (cr, &x, &y); + status = cairo_scaled_font_text_to_glyphs (scaled_font, + x, y, + utf8, utf8_len, + &glyphs, &num_glyphs, + has_show_text_glyphs ? &clusters : NULL, &num_clusters, + &cluster_flags); + if (unlikely (status)) + goto BAIL; + + if (num_glyphs == 0) + return; + + i = NULL; + if (has_show_text_glyphs) { + info.utf8 = utf8; + info.utf8_len = utf8_len; + info.clusters = clusters; + info.num_clusters = num_clusters; + info.cluster_flags = cluster_flags; + i = &info; + } + + status = cr->backend->glyphs (cr, glyphs, num_glyphs, i); + if (unlikely (status)) + goto BAIL; + + last_glyph = &glyphs[num_glyphs - 1]; + status = cr->backend->glyph_extents (cr, last_glyph, 1, &extents); + if (unlikely (status)) + goto BAIL; + + x = last_glyph->x + extents.x_advance; + y = last_glyph->y + extents.y_advance; + cr->backend->move_to (cr, x, y); + + BAIL: + if (glyphs != stack_glyphs) + cairo_glyph_free (glyphs); + if (clusters != stack_clusters) + cairo_text_cluster_free (clusters); + + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_show_glyphs: + * @cr: a cairo context + * @glyphs: array of glyphs to show + * @num_glyphs: number of glyphs to show + * + * A drawing operator that generates the shape from an array of glyphs, + * rendered according to the current font face, font size + * (font matrix), and font options. + * + * Since: 1.0 + **/ +void +cairo_show_glyphs (cairo_t *cr, const cairo_glyph_t *glyphs, int num_glyphs) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + if (num_glyphs == 0) + return; + + if (num_glyphs < 0) { + _cairo_set_error (cr, CAIRO_STATUS_NEGATIVE_COUNT); + return; + } + + if (glyphs == NULL) { + _cairo_set_error (cr, CAIRO_STATUS_NULL_POINTER); + return; + } + + status = cr->backend->glyphs (cr, glyphs, num_glyphs, NULL); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_show_text_glyphs: + * @cr: a cairo context + * @utf8: a string of text encoded in UTF-8 + * @utf8_len: length of @utf8 in bytes, or -1 if it is NUL-terminated + * @glyphs: array of glyphs to show + * @num_glyphs: number of glyphs to show + * @clusters: array of cluster mapping information + * @num_clusters: number of clusters in the mapping + * @cluster_flags: cluster mapping flags + * + * This operation has rendering effects similar to cairo_show_glyphs() + * but, if the target surface supports it, uses the provided text and + * cluster mapping to embed the text for the glyphs shown in the output. + * If the target does not support the extended attributes, this function + * acts like the basic cairo_show_glyphs() as if it had been passed + * @glyphs and @num_glyphs. + * + * The mapping between @utf8 and @glyphs is provided by an array of + * clusters. Each cluster covers a number of + * text bytes and glyphs, and neighboring clusters cover neighboring + * areas of @utf8 and @glyphs. The clusters should collectively cover @utf8 + * and @glyphs in entirety. + * + * The first cluster always covers bytes from the beginning of @utf8. + * If @cluster_flags do not have the %CAIRO_TEXT_CLUSTER_FLAG_BACKWARD + * set, the first cluster also covers the beginning + * of @glyphs, otherwise it covers the end of the @glyphs array and + * following clusters move backward. + * + * See #cairo_text_cluster_t for constraints on valid clusters. + * + * Since: 1.8 + **/ +void +cairo_show_text_glyphs (cairo_t *cr, + const char *utf8, + int utf8_len, + const cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + /* A slew of sanity checks */ + + /* Special case for NULL and -1 */ + if (utf8 == NULL && utf8_len == -1) + utf8_len = 0; + + /* No NULLs for non-zeros */ + if ((num_glyphs && glyphs == NULL) || + (utf8_len && utf8 == NULL) || + (num_clusters && clusters == NULL)) { + _cairo_set_error (cr, CAIRO_STATUS_NULL_POINTER); + return; + } + + /* A -1 for utf8_len means NUL-terminated */ + if (utf8_len == -1) + utf8_len = strlen (utf8); + + /* Apart from that, no negatives */ + if (num_glyphs < 0 || utf8_len < 0 || num_clusters < 0) { + _cairo_set_error (cr, CAIRO_STATUS_NEGATIVE_COUNT); + return; + } + + if (num_glyphs == 0 && utf8_len == 0) + return; + + if (utf8) { + /* Make sure clusters cover the entire glyphs and utf8 arrays, + * and that cluster boundaries are UTF-8 boundaries. */ + status = _cairo_validate_text_clusters (utf8, utf8_len, + glyphs, num_glyphs, + clusters, num_clusters, cluster_flags); + if (status == CAIRO_STATUS_INVALID_CLUSTERS) { + /* Either got invalid UTF-8 text, or cluster mapping is bad. + * Differentiate those. */ + + cairo_status_t status2; + + status2 = _cairo_utf8_to_ucs4 (utf8, utf8_len, NULL, NULL); + if (status2) + status = status2; + } else { + cairo_glyph_text_info_t info; + + info.utf8 = utf8; + info.utf8_len = utf8_len; + info.clusters = clusters; + info.num_clusters = num_clusters; + info.cluster_flags = cluster_flags; + + status = cr->backend->glyphs (cr, glyphs, num_glyphs, &info); + } + } else { + status = cr->backend->glyphs (cr, glyphs, num_glyphs, NULL); + } + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_text_path: + * @cr: a cairo context + * @utf8: a NUL-terminated string of text encoded in UTF-8, or %NULL + * + * Adds closed paths for text to the current path. The generated + * path if filled, achieves an effect similar to that of + * cairo_show_text(). + * + * Text conversion and positioning is done similar to cairo_show_text(). + * + * Like cairo_show_text(), After this call the current point is + * moved to the origin of where the next glyph would be placed in + * this same progression. That is, the current point will be at + * the origin of the final glyph offset by its advance values. + * This allows for chaining multiple calls to to cairo_text_path() + * without having to set current point in between. + * + * Note: The cairo_text_path() function call is part of what the cairo + * designers call the "toy" text API. It is convenient for short demos + * and simple programs, but it is not expected to be adequate for + * serious text-using applications. See cairo_glyph_path() for the + * "real" text path API in cairo. + * + * Since: 1.0 + **/ +void +cairo_text_path (cairo_t *cr, const char *utf8) +{ + cairo_status_t status; + cairo_text_extents_t extents; + cairo_glyph_t stack_glyphs[CAIRO_STACK_ARRAY_LENGTH (cairo_glyph_t)]; + cairo_glyph_t *glyphs, *last_glyph; + cairo_scaled_font_t *scaled_font; + int num_glyphs; + double x, y; + + if (unlikely (cr->status)) + return; + + if (utf8 == NULL) + return; + + + glyphs = stack_glyphs; + num_glyphs = ARRAY_LENGTH (stack_glyphs); + + scaled_font = cairo_get_scaled_font (cr); + if (unlikely (scaled_font->status)) { + _cairo_set_error (cr, scaled_font->status); + return; + } + + cairo_get_current_point (cr, &x, &y); + status = cairo_scaled_font_text_to_glyphs (scaled_font, + x, y, + utf8, -1, + &glyphs, &num_glyphs, + NULL, NULL, NULL); + + if (num_glyphs == 0) + return; + + status = cr->backend->glyph_path (cr, glyphs, num_glyphs); + + if (unlikely (status)) + goto BAIL; + + last_glyph = &glyphs[num_glyphs - 1]; + status = cr->backend->glyph_extents (cr, last_glyph, 1, &extents); + + if (unlikely (status)) + goto BAIL; + + x = last_glyph->x + extents.x_advance; + y = last_glyph->y + extents.y_advance; + cr->backend->move_to (cr, x, y); + + BAIL: + if (glyphs != stack_glyphs) + cairo_glyph_free (glyphs); + + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_glyph_path: + * @cr: a cairo context + * @glyphs: array of glyphs to show + * @num_glyphs: number of glyphs to show + * + * Adds closed paths for the glyphs to the current path. The generated + * path if filled, achieves an effect similar to that of + * cairo_show_glyphs(). + * + * Since: 1.0 + **/ +void +cairo_glyph_path (cairo_t *cr, const cairo_glyph_t *glyphs, int num_glyphs) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + if (num_glyphs == 0) + return; + + if (unlikely (num_glyphs < 0)) { + _cairo_set_error (cr, CAIRO_STATUS_NEGATIVE_COUNT); + return; + } + + if (unlikely (glyphs == NULL)) { + _cairo_set_error (cr, CAIRO_STATUS_NULL_POINTER); + return; + } + + status = cr->backend->glyph_path (cr, glyphs, num_glyphs); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_get_operator: + * @cr: a cairo context + * + * Gets the current compositing operator for a cairo context. + * + * Return value: the current compositing operator. + * + * Since: 1.0 + **/ +cairo_operator_t +cairo_get_operator (cairo_t *cr) +{ + if (unlikely (cr->status)) + return CAIRO_GSTATE_OPERATOR_DEFAULT; + + return cr->backend->get_operator (cr); +} + +#if 0 +/* + * cairo_get_opacity: + * @cr: a cairo context + * + * Gets the current compositing opacity for a cairo context. + * + * Return value: the current compositing opacity. + * + * Since: TBD + **/ +double +cairo_get_opacity (cairo_t *cr) +{ + if (unlikely (cr->status)) + return 1.; + + return cr->backend->get_opacity (cr); +} +#endif + +/** + * cairo_get_tolerance: + * @cr: a cairo context + * + * Gets the current tolerance value, as set by cairo_set_tolerance(). + * + * Return value: the current tolerance value. + * + * Since: 1.0 + **/ +double +cairo_get_tolerance (cairo_t *cr) +{ + if (unlikely (cr->status)) + return CAIRO_GSTATE_TOLERANCE_DEFAULT; + + return cr->backend->get_tolerance (cr); +} + +/** + * cairo_get_antialias: + * @cr: a cairo context + * + * Gets the current shape antialiasing mode, as set by + * cairo_set_antialias(). + * + * Return value: the current shape antialiasing mode. + * + * Since: 1.0 + **/ +cairo_antialias_t +cairo_get_antialias (cairo_t *cr) +{ + if (unlikely (cr->status)) + return CAIRO_ANTIALIAS_DEFAULT; + + return cr->backend->get_antialias (cr); +} + +/** + * cairo_has_current_point: + * @cr: a cairo context + * + * Returns whether a current point is defined on the current path. + * See cairo_get_current_point() for details on the current point. + * + * Return value: whether a current point is defined. + * + * Since: 1.6 + **/ +cairo_bool_t +cairo_has_current_point (cairo_t *cr) +{ + if (unlikely (cr->status)) + return FALSE; + + return cr->backend->has_current_point (cr); +} + +/** + * cairo_get_current_point: + * @cr: a cairo context + * @x: return value for X coordinate of the current point + * @y: return value for Y coordinate of the current point + * + * Gets the current point of the current path, which is + * conceptually the final point reached by the path so far. + * + * The current point is returned in the user-space coordinate + * system. If there is no defined current point or if @cr is in an + * error status, @x and @y will both be set to 0.0. It is possible to + * check this in advance with cairo_has_current_point(). + * + * Most path construction functions alter the current point. See the + * following for details on how they affect the current point: + * cairo_new_path(), cairo_new_sub_path(), + * cairo_append_path(), cairo_close_path(), + * cairo_move_to(), cairo_line_to(), cairo_curve_to(), + * cairo_rel_move_to(), cairo_rel_line_to(), cairo_rel_curve_to(), + * cairo_arc(), cairo_arc_negative(), cairo_rectangle(), + * cairo_text_path(), cairo_glyph_path(). + * + * Some functions use and alter the current point but do not + * otherwise change current path: + * cairo_show_text(). + * + * Some functions unset the current path and as a result, current point: + * cairo_fill(), cairo_stroke(). + * + * Since: 1.0 + **/ +void +cairo_get_current_point (cairo_t *cr, double *x_ret, double *y_ret) +{ + double x, y; + + x = y = 0; + if (cr->status == CAIRO_STATUS_SUCCESS && + cr->backend->has_current_point (cr)) + { + cr->backend->get_current_point (cr, &x, &y); + } + + if (x_ret) + *x_ret = x; + if (y_ret) + *y_ret = y; +} + +/** + * cairo_get_fill_rule: + * @cr: a cairo context + * + * Gets the current fill rule, as set by cairo_set_fill_rule(). + * + * Return value: the current fill rule. + * + * Since: 1.0 + **/ +cairo_fill_rule_t +cairo_get_fill_rule (cairo_t *cr) +{ + if (unlikely (cr->status)) + return CAIRO_GSTATE_FILL_RULE_DEFAULT; + + return cr->backend->get_fill_rule (cr); +} + +/** + * cairo_get_line_width: + * @cr: a cairo context + * + * This function returns the current line width value exactly as set by + * cairo_set_line_width(). Note that the value is unchanged even if + * the CTM has changed between the calls to cairo_set_line_width() and + * cairo_get_line_width(). + * + * Return value: the current line width. + * + * Since: 1.0 + **/ +double +cairo_get_line_width (cairo_t *cr) +{ + if (unlikely (cr->status)) + return CAIRO_GSTATE_LINE_WIDTH_DEFAULT; + + return cr->backend->get_line_width (cr); +} + +/** + * cairo_get_hairline: + * @cr: a cairo context + * + * Returns whether or not hairline mode is set, as set by cairo_set_hairline(). + * + * Return value: whether hairline mode is set. + * + * Since: 1.18 + **/ +cairo_bool_t +cairo_get_hairline (cairo_t *cr) +{ + if (unlikely (cr->status)) + return FALSE; + + return cr->backend->get_hairline (cr); +} + +/** + * cairo_get_line_cap: + * @cr: a cairo context + * + * Gets the current line cap style, as set by cairo_set_line_cap(). + * + * Return value: the current line cap style. + * + * Since: 1.0 + **/ +cairo_line_cap_t +cairo_get_line_cap (cairo_t *cr) +{ + if (unlikely (cr->status)) + return CAIRO_GSTATE_LINE_CAP_DEFAULT; + + return cr->backend->get_line_cap (cr); +} + +/** + * cairo_get_line_join: + * @cr: a cairo context + * + * Gets the current line join style, as set by cairo_set_line_join(). + * + * Return value: the current line join style. + * + * Since: 1.0 + **/ +cairo_line_join_t +cairo_get_line_join (cairo_t *cr) +{ + if (unlikely (cr->status)) + return CAIRO_GSTATE_LINE_JOIN_DEFAULT; + + return cr->backend->get_line_join (cr); +} + +/** + * cairo_get_miter_limit: + * @cr: a cairo context + * + * Gets the current miter limit, as set by cairo_set_miter_limit(). + * + * Return value: the current miter limit. + * + * Since: 1.0 + **/ +double +cairo_get_miter_limit (cairo_t *cr) +{ + if (unlikely (cr->status)) + return CAIRO_GSTATE_MITER_LIMIT_DEFAULT; + + return cr->backend->get_miter_limit (cr); +} + +/** + * cairo_get_matrix: + * @cr: a cairo context + * @matrix: return value for the matrix + * + * Stores the current transformation matrix (CTM) into @matrix. + * + * Since: 1.0 + **/ +void +cairo_get_matrix (cairo_t *cr, cairo_matrix_t *matrix) +{ + if (unlikely (cr->status)) { + cairo_matrix_init_identity (matrix); + return; + } + + cr->backend->get_matrix (cr, matrix); +} + +/** + * cairo_get_target: + * @cr: a cairo context + * + * Gets the target surface for the cairo context as passed to + * cairo_create(). + * + * This function will always return a valid pointer, but the result + * can be a "nil" surface if @cr is already in an error state, + * (ie. cairo_status() != %CAIRO_STATUS_SUCCESS). + * A nil surface is indicated by cairo_surface_status() + * != %CAIRO_STATUS_SUCCESS. + * + * Return value: the target surface. This object is owned by cairo. To + * keep a reference to it, you must call cairo_surface_reference(). + * + * Since: 1.0 + **/ +cairo_surface_t * +cairo_get_target (cairo_t *cr) +{ + if (unlikely (cr->status)) + return _cairo_surface_create_in_error (cr->status); + + return cr->backend->get_original_target (cr); +} + +/** + * cairo_get_group_target: + * @cr: a cairo context + * + * Gets the current destination surface for the context. This is either + * the original target surface as passed to cairo_create() or the target + * surface for the current group as started by the most recent call to + * cairo_push_group() or cairo_push_group_with_content(). + * + * This function will always return a valid pointer, but the result + * can be a "nil" surface if @cr is already in an error state, + * (ie. cairo_status() != %CAIRO_STATUS_SUCCESS). + * A nil surface is indicated by cairo_surface_status() + * != %CAIRO_STATUS_SUCCESS. + * + * Return value: the target surface. This object is owned by cairo. To + * keep a reference to it, you must call cairo_surface_reference(). + * + * Since: 1.2 + **/ +cairo_surface_t * +cairo_get_group_target (cairo_t *cr) +{ + if (unlikely (cr->status)) + return _cairo_surface_create_in_error (cr->status); + + return cr->backend->get_current_target (cr); +} + +/** + * cairo_copy_path: + * @cr: a cairo context + * + * Creates a copy of the current path and returns it to the user as a + * #cairo_path_t. See #cairo_path_data_t for hints on how to iterate + * over the returned data structure. + * + * This function will always return a valid pointer, but the result + * will have no data (data==%NULL and + * num_data==0), if either of the following + * conditions hold: + * + * + * If there is insufficient memory to copy the path. In this + * case path->status will be set to + * %CAIRO_STATUS_NO_MEMORY. + * If @cr is already in an error state. In this case + * path->status will contain the same status that + * would be returned by cairo_status(). + * + * + * Return value: the copy of the current path. The caller owns the + * returned object and should call cairo_path_destroy() when finished + * with it. + * + * Since: 1.0 + **/ +cairo_path_t * +cairo_copy_path (cairo_t *cr) +{ + if (unlikely (cr->status)) + return _cairo_path_create_in_error (cr->status); + + return cr->backend->copy_path (cr); +} + +/** + * cairo_copy_path_flat: + * @cr: a cairo context + * + * Gets a flattened copy of the current path and returns it to the + * user as a #cairo_path_t. See #cairo_path_data_t for hints on + * how to iterate over the returned data structure. + * + * This function is like cairo_copy_path() except that any curves + * in the path will be approximated with piecewise-linear + * approximations, (accurate to within the current tolerance + * value). That is, the result is guaranteed to not have any elements + * of type %CAIRO_PATH_CURVE_TO which will instead be replaced by a + * series of %CAIRO_PATH_LINE_TO elements. + * + * This function will always return a valid pointer, but the result + * will have no data (data==%NULL and + * num_data==0), if either of the following + * conditions hold: + * + * + * If there is insufficient memory to copy the path. In this + * case path->status will be set to + * %CAIRO_STATUS_NO_MEMORY. + * If @cr is already in an error state. In this case + * path->status will contain the same status that + * would be returned by cairo_status(). + * + * + * Return value: the copy of the current path. The caller owns the + * returned object and should call cairo_path_destroy() when finished + * with it. + * + * Since: 1.0 + **/ +cairo_path_t * +cairo_copy_path_flat (cairo_t *cr) +{ + if (unlikely (cr->status)) + return _cairo_path_create_in_error (cr->status); + + return cr->backend->copy_path_flat (cr); +} + +/** + * cairo_append_path: + * @cr: a cairo context + * @path: path to be appended + * + * Append the @path onto the current path. The @path may be either the + * return value from one of cairo_copy_path() or + * cairo_copy_path_flat() or it may be constructed manually. See + * #cairo_path_t for details on how the path data structure should be + * initialized, and note that path->status must be + * initialized to %CAIRO_STATUS_SUCCESS. + * + * Since: 1.0 + **/ +void +cairo_append_path (cairo_t *cr, + const cairo_path_t *path) +{ + cairo_status_t status; + + if (unlikely (cr->status)) + return; + + if (unlikely (path == NULL)) { + _cairo_set_error (cr, CAIRO_STATUS_NULL_POINTER); + return; + } + + if (unlikely (path->status)) { + if (path->status > CAIRO_STATUS_SUCCESS && + path->status <= CAIRO_STATUS_LAST_STATUS) + _cairo_set_error (cr, path->status); + else + _cairo_set_error (cr, CAIRO_STATUS_INVALID_STATUS); + return; + } + + if (path->num_data == 0) + return; + + if (unlikely (path->data == NULL)) { + _cairo_set_error (cr, CAIRO_STATUS_NULL_POINTER); + return; + } + + status = cr->backend->append_path (cr, path); + if (unlikely (status)) + _cairo_set_error (cr, status); +} + +/** + * cairo_status: + * @cr: a cairo context + * + * Checks whether an error has previously occurred for this context. + * + * Returns: the current status of this context, see #cairo_status_t + * + * Since: 1.0 + **/ +cairo_status_t +cairo_status (cairo_t *cr) +{ + return cr->status; +} diff --git a/local/recipes/libs/cairo/source/src/cairo.h b/local/recipes/libs/cairo/source/src/cairo.h new file mode 100644 index 0000000000..89e4a070e6 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairo.h @@ -0,0 +1,3348 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +#ifndef CAIRO_H +#define CAIRO_H + +#include "cairo-version.h" +#include "cairo-features.h" +#include "cairo-deprecated.h" + +#ifdef __cplusplus +# define CAIRO_BEGIN_DECLS extern "C" { +# define CAIRO_END_DECLS } +#else +# define CAIRO_BEGIN_DECLS +# define CAIRO_END_DECLS +#endif + +#if (defined(_WIN32) || defined(__CYGWIN__)) && !defined(CAIRO_WIN32_STATIC_BUILD) +# define _cairo_export __declspec(dllexport) +# define _cairo_import __declspec(dllimport) +#elif defined(__GNUC__) && (__GNUC__ >= 4) +# define _cairo_export __attribute__((__visibility__("default"))) +# define _cairo_import +#else +# define _cairo_export +# define _cairo_import +#endif + +#ifdef CAIRO_COMPILATION +# define _cairo_api _cairo_export +#else +# define _cairo_api _cairo_import +#endif + +#define cairo_public _cairo_api extern + +CAIRO_BEGIN_DECLS + +#define CAIRO_VERSION_ENCODE(major, minor, micro) ( \ + ((major) * 10000) \ + + ((minor) * 100) \ + + ((micro) * 1)) + +#define CAIRO_VERSION CAIRO_VERSION_ENCODE( \ + CAIRO_VERSION_MAJOR, \ + CAIRO_VERSION_MINOR, \ + CAIRO_VERSION_MICRO) + + +#define CAIRO_VERSION_STRINGIZE_(major, minor, micro) \ + #major"."#minor"."#micro +#define CAIRO_VERSION_STRINGIZE(major, minor, micro) \ + CAIRO_VERSION_STRINGIZE_(major, minor, micro) + +#define CAIRO_VERSION_STRING CAIRO_VERSION_STRINGIZE( \ + CAIRO_VERSION_MAJOR, \ + CAIRO_VERSION_MINOR, \ + CAIRO_VERSION_MICRO) + + +cairo_public int +cairo_version (void); + +cairo_public const char* +cairo_version_string (void); + +/** + * cairo_bool_t: + * + * #cairo_bool_t is used for boolean values. Returns of type + * #cairo_bool_t will always be either 0 or 1, but testing against + * these values explicitly is not encouraged; just use the + * value as a boolean condition. + * + * + * if (cairo_in_stroke (cr, x, y)) { + * /* do something */ + * } + * + * + * Since: 1.0 + **/ +typedef int cairo_bool_t; + +/** + * cairo_t: + * + * A #cairo_t contains the current state of the rendering device, + * including coordinates of yet to be drawn shapes. + * + * Cairo contexts, as #cairo_t objects are named, are central to + * cairo and all drawing with cairo is always done to a #cairo_t + * object. + * + * Memory management of #cairo_t is done with + * cairo_reference() and cairo_destroy(). + * + * Since: 1.0 + **/ +typedef struct _cairo cairo_t; + +/** + * cairo_surface_t: + * + * A #cairo_surface_t represents an image, either as the destination + * of a drawing operation or as source when drawing onto another + * surface. To draw to a #cairo_surface_t, create a cairo context + * with the surface as the target, using cairo_create(). + * + * There are different subtypes of #cairo_surface_t for + * different drawing backends; for example, cairo_image_surface_create() + * creates a bitmap image in memory. + * The type of a surface can be queried with cairo_surface_get_type(). + * + * The initial contents of a surface after creation depend upon the manner + * of its creation. If cairo creates the surface and backing storage for + * the user, it will be initially cleared; for example, + * cairo_image_surface_create() and cairo_surface_create_similar(). + * Alternatively, if the user passes in a reference to some backing storage + * and asks cairo to wrap that in a #cairo_surface_t, then the contents are + * not modified; for example, cairo_image_surface_create_for_data() and + * cairo_xlib_surface_create(). + * + * Memory management of #cairo_surface_t is done with + * cairo_surface_reference() and cairo_surface_destroy(). + * + * Since: 1.0 + **/ +typedef struct _cairo_surface cairo_surface_t; + +/** + * cairo_device_t: + * + * A #cairo_device_t represents the driver interface for drawing + * operations to a #cairo_surface_t. There are different subtypes of + * #cairo_device_t for different drawing backends. + * + * The type of a device can be queried with cairo_device_get_type(). + * + * Memory management of #cairo_device_t is done with + * cairo_device_reference() and cairo_device_destroy(). + * + * Since: 1.10 + **/ +typedef struct _cairo_device cairo_device_t; + +/** + * cairo_matrix_t: + * @xx: xx component of the affine transformation + * @yx: yx component of the affine transformation + * @xy: xy component of the affine transformation + * @yy: yy component of the affine transformation + * @x0: X translation component of the affine transformation + * @y0: Y translation component of the affine transformation + * + * A #cairo_matrix_t holds an affine transformation, such as a scale, + * rotation, shear, or a combination of those. The transformation of + * a point (x, y) is given by: + * + * x_new = xx * x + xy * y + x0; + * y_new = yx * x + yy * y + y0; + * + * + * Since: 1.0 + **/ +typedef struct _cairo_matrix { + double xx; double yx; + double xy; double yy; + double x0; double y0; +} cairo_matrix_t; + +/** + * cairo_pattern_t: + * + * A #cairo_pattern_t represents a source when drawing onto a + * surface. There are different subtypes of #cairo_pattern_t, + * for different types of sources; for example, + * cairo_pattern_create_rgb() creates a pattern for a solid + * opaque color. + * + * Other than various + * cairo_pattern_create_type() + * functions, some of the pattern types can be implicitly created using various + * cairo_set_source_type() functions; + * for example cairo_set_source_rgb(). + * + * The type of a pattern can be queried with cairo_pattern_get_type(). + * + * Memory management of #cairo_pattern_t is done with + * cairo_pattern_reference() and cairo_pattern_destroy(). + * + * Since: 1.0 + **/ +typedef struct _cairo_pattern cairo_pattern_t; + +/** + * cairo_destroy_func_t: + * @data: The data element being destroyed. + * + * #cairo_destroy_func_t the type of function which is called when a + * data element is destroyed. It is passed the pointer to the data + * element and should free any memory and resources allocated for it. + * + * Since: 1.0 + **/ +typedef void (*cairo_destroy_func_t) (void *data); + +/** + * cairo_user_data_key_t: + * @unused: not used; ignore. + * + * #cairo_user_data_key_t is used for attaching user data to cairo + * data structures. The actual contents of the struct is never used, + * and there is no need to initialize the object; only the unique + * address of a #cairo_data_key_t object is used. Typically, you + * would just use the address of a static #cairo_data_key_t object. + * + * Since: 1.0 + **/ +typedef struct _cairo_user_data_key { + int unused; +} cairo_user_data_key_t; + +/** + * cairo_status_t: + * @CAIRO_STATUS_SUCCESS: no error has occurred (Since 1.0) + * @CAIRO_STATUS_NO_MEMORY: out of memory (Since 1.0) + * @CAIRO_STATUS_INVALID_RESTORE: cairo_restore() called without matching cairo_save() (Since 1.0) + * @CAIRO_STATUS_INVALID_POP_GROUP: no saved group to pop, i.e. cairo_pop_group() without matching cairo_push_group() (Since 1.0) + * @CAIRO_STATUS_NO_CURRENT_POINT: no current point defined (Since 1.0) + * @CAIRO_STATUS_INVALID_MATRIX: invalid matrix (not invertible) (Since 1.0) + * @CAIRO_STATUS_INVALID_STATUS: invalid value for an input #cairo_status_t (Since 1.0) + * @CAIRO_STATUS_NULL_POINTER: %NULL pointer (Since 1.0) + * @CAIRO_STATUS_INVALID_STRING: input string not valid UTF-8 (Since 1.0) + * @CAIRO_STATUS_INVALID_PATH_DATA: input path data not valid (Since 1.0) + * @CAIRO_STATUS_READ_ERROR: error while reading from input stream (Since 1.0) + * @CAIRO_STATUS_WRITE_ERROR: error while writing to output stream (Since 1.0) + * @CAIRO_STATUS_SURFACE_FINISHED: target surface has been finished (Since 1.0) + * @CAIRO_STATUS_SURFACE_TYPE_MISMATCH: the surface type is not appropriate for the operation (Since 1.0) + * @CAIRO_STATUS_PATTERN_TYPE_MISMATCH: the pattern type is not appropriate for the operation (Since 1.0) + * @CAIRO_STATUS_INVALID_CONTENT: invalid value for an input #cairo_content_t (Since 1.0) + * @CAIRO_STATUS_INVALID_FORMAT: invalid value for an input #cairo_format_t (Since 1.0) + * @CAIRO_STATUS_INVALID_VISUAL: invalid value for an input Visual* (Since 1.0) + * @CAIRO_STATUS_FILE_NOT_FOUND: file not found (Since 1.0) + * @CAIRO_STATUS_INVALID_DASH: invalid value for a dash setting (Since 1.0) + * @CAIRO_STATUS_INVALID_DSC_COMMENT: invalid value for a DSC comment (Since 1.2) + * @CAIRO_STATUS_INVALID_INDEX: invalid index passed to getter (Since 1.4) + * @CAIRO_STATUS_CLIP_NOT_REPRESENTABLE: clip region not representable in desired format (Since 1.4) + * @CAIRO_STATUS_TEMP_FILE_ERROR: error creating or writing to a temporary file (Since 1.6) + * @CAIRO_STATUS_INVALID_STRIDE: invalid value for stride (Since 1.6) + * @CAIRO_STATUS_FONT_TYPE_MISMATCH: the font type is not appropriate for the operation (Since 1.8) + * @CAIRO_STATUS_USER_FONT_IMMUTABLE: the user-font is immutable (Since 1.8) + * @CAIRO_STATUS_USER_FONT_ERROR: error occurred in a user-font callback function (Since 1.8) + * @CAIRO_STATUS_NEGATIVE_COUNT: negative number used where it is not allowed (Since 1.8) + * @CAIRO_STATUS_INVALID_CLUSTERS: input clusters do not represent the accompanying text and glyph array (Since 1.8) + * @CAIRO_STATUS_INVALID_SLANT: invalid value for an input #cairo_font_slant_t (Since 1.8) + * @CAIRO_STATUS_INVALID_WEIGHT: invalid value for an input #cairo_font_weight_t (Since 1.8) + * @CAIRO_STATUS_INVALID_SIZE: invalid value (typically too big) for the size of the input (surface, pattern, etc.) (Since 1.10) + * @CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED: user-font method not implemented (Since 1.10) + * @CAIRO_STATUS_DEVICE_TYPE_MISMATCH: the device type is not appropriate for the operation (Since 1.10) + * @CAIRO_STATUS_DEVICE_ERROR: an operation to the device caused an unspecified error (Since 1.10) + * @CAIRO_STATUS_INVALID_MESH_CONSTRUCTION: a mesh pattern + * construction operation was used outside of a + * cairo_mesh_pattern_begin_patch()/cairo_mesh_pattern_end_patch() + * pair (Since 1.12) + * @CAIRO_STATUS_DEVICE_FINISHED: target device has been finished (Since 1.12) + * @CAIRO_STATUS_JBIG2_GLOBAL_MISSING: %CAIRO_MIME_TYPE_JBIG2_GLOBAL_ID has been used on at least one image + * but no image provided %CAIRO_MIME_TYPE_JBIG2_GLOBAL (Since 1.14) + * @CAIRO_STATUS_PNG_ERROR: error occurred in libpng while reading from or writing to a PNG file (Since 1.16) + * @CAIRO_STATUS_FREETYPE_ERROR: error occurred in libfreetype (Since 1.16) + * @CAIRO_STATUS_WIN32_GDI_ERROR: error occurred in the Windows Graphics Device Interface (Since 1.16) + * @CAIRO_STATUS_TAG_ERROR: invalid tag name, attributes, or nesting (Since 1.16) + * @CAIRO_STATUS_DWRITE_ERROR: error occurred in the Windows Direct Write API (Since 1.18) + * @CAIRO_STATUS_SVG_FONT_ERROR: error occurred in OpenType-SVG font rendering (Since 1.18) + * @CAIRO_STATUS_LAST_STATUS: this is a special value indicating the number of + * status values defined in this enumeration. When using this value, note + * that the version of cairo at run-time may have additional status values + * defined than the value of this symbol at compile-time. (Since 1.10) + * + * #cairo_status_t is used to indicate errors that can occur when + * using Cairo. In some cases it is returned directly by functions. + * but when using #cairo_t, the last error, if any, is stored in + * the context and can be retrieved with cairo_status(). + * + * New entries may be added in future versions. Use cairo_status_to_string() + * to get a human-readable representation of an error message. + * + * Since: 1.0 + **/ +typedef enum _cairo_status { + CAIRO_STATUS_SUCCESS = 0, + + CAIRO_STATUS_NO_MEMORY, + CAIRO_STATUS_INVALID_RESTORE, + CAIRO_STATUS_INVALID_POP_GROUP, + CAIRO_STATUS_NO_CURRENT_POINT, + CAIRO_STATUS_INVALID_MATRIX, + CAIRO_STATUS_INVALID_STATUS, + CAIRO_STATUS_NULL_POINTER, + CAIRO_STATUS_INVALID_STRING, + CAIRO_STATUS_INVALID_PATH_DATA, + CAIRO_STATUS_READ_ERROR, + CAIRO_STATUS_WRITE_ERROR, + CAIRO_STATUS_SURFACE_FINISHED, + CAIRO_STATUS_SURFACE_TYPE_MISMATCH, + CAIRO_STATUS_PATTERN_TYPE_MISMATCH, + CAIRO_STATUS_INVALID_CONTENT, + CAIRO_STATUS_INVALID_FORMAT, + CAIRO_STATUS_INVALID_VISUAL, + CAIRO_STATUS_FILE_NOT_FOUND, + CAIRO_STATUS_INVALID_DASH, + CAIRO_STATUS_INVALID_DSC_COMMENT, + CAIRO_STATUS_INVALID_INDEX, + CAIRO_STATUS_CLIP_NOT_REPRESENTABLE, + CAIRO_STATUS_TEMP_FILE_ERROR, + CAIRO_STATUS_INVALID_STRIDE, + CAIRO_STATUS_FONT_TYPE_MISMATCH, + CAIRO_STATUS_USER_FONT_IMMUTABLE, + CAIRO_STATUS_USER_FONT_ERROR, + CAIRO_STATUS_NEGATIVE_COUNT, + CAIRO_STATUS_INVALID_CLUSTERS, + CAIRO_STATUS_INVALID_SLANT, + CAIRO_STATUS_INVALID_WEIGHT, + CAIRO_STATUS_INVALID_SIZE, + CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED, + CAIRO_STATUS_DEVICE_TYPE_MISMATCH, + CAIRO_STATUS_DEVICE_ERROR, + CAIRO_STATUS_INVALID_MESH_CONSTRUCTION, + CAIRO_STATUS_DEVICE_FINISHED, + CAIRO_STATUS_JBIG2_GLOBAL_MISSING, + CAIRO_STATUS_PNG_ERROR, + CAIRO_STATUS_FREETYPE_ERROR, + CAIRO_STATUS_WIN32_GDI_ERROR, + CAIRO_STATUS_TAG_ERROR, + CAIRO_STATUS_DWRITE_ERROR, + CAIRO_STATUS_SVG_FONT_ERROR, + + CAIRO_STATUS_LAST_STATUS +} cairo_status_t; + +/** + * cairo_content_t: + * @CAIRO_CONTENT_COLOR: The surface will hold color content only. (Since 1.0) + * @CAIRO_CONTENT_ALPHA: The surface will hold alpha content only. (Since 1.0) + * @CAIRO_CONTENT_COLOR_ALPHA: The surface will hold color and alpha content. (Since 1.0) + * + * #cairo_content_t is used to describe the content that a surface will + * contain, whether color information, alpha information (translucence + * vs. opacity), or both. + * + * Note: The large values here are designed to keep #cairo_content_t + * values distinct from #cairo_format_t values so that the + * implementation can detect the error if users confuse the two types. + * + * Since: 1.0 + **/ +typedef enum _cairo_content { + CAIRO_CONTENT_COLOR = 0x1000, + CAIRO_CONTENT_ALPHA = 0x2000, + CAIRO_CONTENT_COLOR_ALPHA = 0x3000 +} cairo_content_t; + +/** + * cairo_format_t: + * @CAIRO_FORMAT_INVALID: no such format exists or is supported. + * @CAIRO_FORMAT_ARGB32: each pixel is a 32-bit quantity, with + * alpha in the upper 8 bits, then red, then green, then blue. + * The 32-bit quantities are stored native-endian. Pre-multiplied + * alpha is used. (That is, 50% transparent red is 0x80800000, + * not 0x80ff0000.) (Since 1.0) + * @CAIRO_FORMAT_RGB24: each pixel is a 32-bit quantity, with + * the upper 8 bits unused. Red, Green, and Blue are stored + * in the remaining 24 bits in that order. (Since 1.0) + * @CAIRO_FORMAT_A8: each pixel is a 8-bit quantity holding + * an alpha value. (Since 1.0) + * @CAIRO_FORMAT_A1: each pixel is a 1-bit quantity holding + * an alpha value. Pixels are packed together into 32-bit + * quantities. The ordering of the bits matches the + * endianness of the platform. On a big-endian machine, the + * first pixel is in the uppermost bit, on a little-endian + * machine the first pixel is in the least-significant bit. (Since 1.0) + * @CAIRO_FORMAT_RGB16_565: each pixel is a 16-bit quantity + * with red in the upper 5 bits, then green in the middle + * 6 bits, and blue in the lower 5 bits. (Since 1.2) + * @CAIRO_FORMAT_RGB30: like RGB24 but with 10bpc. (Since 1.12) + * @CAIRO_FORMAT_RGB96F: 3 floats, R, G, B. (Since 1.17.2) + * @CAIRO_FORMAT_RGBA128F: 4 floats, R, G, B, A. (Since 1.17.2) + * + * #cairo_format_t is used to identify the memory format of + * image data. + * + * New entries may be added in future versions. + * + * Since: 1.0 + **/ +typedef enum _cairo_format { + CAIRO_FORMAT_INVALID = -1, + CAIRO_FORMAT_ARGB32 = 0, + CAIRO_FORMAT_RGB24 = 1, + CAIRO_FORMAT_A8 = 2, + CAIRO_FORMAT_A1 = 3, + CAIRO_FORMAT_RGB16_565 = 4, + CAIRO_FORMAT_RGB30 = 5, + CAIRO_FORMAT_RGB96F = 6, + CAIRO_FORMAT_RGBA128F = 7 +} cairo_format_t; + +/** + * cairo_dither_t: + * @CAIRO_DITHER_NONE: No dithering. + * @CAIRO_DITHER_DEFAULT: Default choice at cairo compile time. Currently NONE. + * @CAIRO_DITHER_FAST: Fastest dithering algorithm supported by the backend + * @CAIRO_DITHER_GOOD: An algorithm with smoother dithering than FAST + * @CAIRO_DITHER_BEST: Best algorithm available in the backend + * + * Dither is an intentionally applied form of noise used to randomize + * quantization error, preventing large-scale patterns such as color banding + * in images (e.g. for gradients). Ordered dithering applies a precomputed + * threshold matrix to spread the errors smoothly. + * + * #cairo_dither_t is modeled on pixman dithering algorithm choice. + * As of Pixman 0.40, FAST corresponds to a 8x8 ordered bayer noise and GOOD + * and BEST use an ordered 64x64 precomputed blue noise. + * + * Since: 1.18 + **/ +typedef enum _cairo_dither { + CAIRO_DITHER_NONE, + CAIRO_DITHER_DEFAULT, + CAIRO_DITHER_FAST, + CAIRO_DITHER_GOOD, + CAIRO_DITHER_BEST +} cairo_dither_t; + +cairo_public void +cairo_pattern_set_dither (cairo_pattern_t *pattern, cairo_dither_t dither); + +cairo_public cairo_dither_t +cairo_pattern_get_dither (cairo_pattern_t *pattern); + +/** + * cairo_write_func_t: + * @closure: the output closure + * @data: the buffer containing the data to write + * @length: the amount of data to write + * + * #cairo_write_func_t is the type of function which is called when a + * backend needs to write data to an output stream. It is passed the + * closure which was specified by the user at the time the write + * function was registered, the data to write and the length of the + * data in bytes. The write function should return + * %CAIRO_STATUS_SUCCESS if all the data was successfully written, + * %CAIRO_STATUS_WRITE_ERROR otherwise. + * + * Returns: the status code of the write operation + * + * Since: 1.0 + **/ +typedef cairo_status_t (*cairo_write_func_t) (void *closure, + const unsigned char *data, + unsigned int length); + +/** + * cairo_read_func_t: + * @closure: the input closure + * @data: the buffer into which to read the data + * @length: the amount of data to read + * + * #cairo_read_func_t is the type of function which is called when a + * backend needs to read data from an input stream. It is passed the + * closure which was specified by the user at the time the read + * function was registered, the buffer to read the data into and the + * length of the data in bytes. The read function should return + * %CAIRO_STATUS_SUCCESS if all the data was successfully read, + * %CAIRO_STATUS_READ_ERROR otherwise. + * + * Returns: the status code of the read operation + * + * Since: 1.0 + **/ +typedef cairo_status_t (*cairo_read_func_t) (void *closure, + unsigned char *data, + unsigned int length); + +/** + * cairo_rectangle_int_t: + * @x: X coordinate of the left side of the rectangle + * @y: Y coordinate of the top side of the rectangle + * @width: width of the rectangle + * @height: height of the rectangle + * + * A data structure for holding a rectangle with integer coordinates. + * + * Since: 1.10 + **/ + +typedef struct _cairo_rectangle_int { + int x, y; + int width, height; +} cairo_rectangle_int_t; + + +/* Functions for manipulating state objects */ +cairo_public cairo_t * +cairo_create (cairo_surface_t *target); + +cairo_public cairo_t * +cairo_reference (cairo_t *cr); + +cairo_public void +cairo_destroy (cairo_t *cr); + +cairo_public unsigned int +cairo_get_reference_count (cairo_t *cr); + +cairo_public void * +cairo_get_user_data (cairo_t *cr, + const cairo_user_data_key_t *key); + +cairo_public cairo_status_t +cairo_set_user_data (cairo_t *cr, + const cairo_user_data_key_t *key, + void *user_data, + cairo_destroy_func_t destroy); + +cairo_public void +cairo_save (cairo_t *cr); + +cairo_public void +cairo_restore (cairo_t *cr); + +cairo_public void +cairo_push_group (cairo_t *cr); + +cairo_public void +cairo_push_group_with_content (cairo_t *cr, cairo_content_t content); + +cairo_public cairo_pattern_t * +cairo_pop_group (cairo_t *cr); + +cairo_public void +cairo_pop_group_to_source (cairo_t *cr); + +/* Modify state */ + +/** + * cairo_operator_t: + * @CAIRO_OPERATOR_CLEAR: clear destination layer (bounded) (Since 1.0) + * @CAIRO_OPERATOR_SOURCE: replace destination layer (bounded) (Since 1.0) + * @CAIRO_OPERATOR_OVER: draw source layer on top of destination layer + * (bounded) (Since 1.0) + * @CAIRO_OPERATOR_IN: draw source where there was destination content + * (unbounded) (Since 1.0) + * @CAIRO_OPERATOR_OUT: draw source where there was no destination + * content (unbounded) (Since 1.0) + * @CAIRO_OPERATOR_ATOP: draw source on top of destination content and + * only there (Since 1.0) + * @CAIRO_OPERATOR_DEST: ignore the source (Since 1.0) + * @CAIRO_OPERATOR_DEST_OVER: draw destination on top of source (Since 1.0) + * @CAIRO_OPERATOR_DEST_IN: leave destination only where there was + * source content (unbounded) (Since 1.0) + * @CAIRO_OPERATOR_DEST_OUT: leave destination only where there was no + * source content (Since 1.0) + * @CAIRO_OPERATOR_DEST_ATOP: leave destination on top of source content + * and only there (unbounded) (Since 1.0) + * @CAIRO_OPERATOR_XOR: source and destination are shown where there is only + * one of them (Since 1.0) + * @CAIRO_OPERATOR_ADD: source and destination layers are accumulated (Since 1.0) + * @CAIRO_OPERATOR_SATURATE: like over, but assuming source and dest are + * disjoint geometries (Since 1.0) + * @CAIRO_OPERATOR_MULTIPLY: source and destination layers are multiplied. + * This causes the result to be at least as dark as the darker inputs. (Since 1.10) + * @CAIRO_OPERATOR_SCREEN: source and destination are complemented and + * multiplied. This causes the result to be at least as light as the lighter + * inputs. (Since 1.10) + * @CAIRO_OPERATOR_OVERLAY: multiplies or screens, depending on the + * lightness of the destination color. (Since 1.10) + * @CAIRO_OPERATOR_DARKEN: replaces the destination with the source if it + * is darker, otherwise keeps the source. (Since 1.10) + * @CAIRO_OPERATOR_LIGHTEN: replaces the destination with the source if it + * is lighter, otherwise keeps the source. (Since 1.10) + * @CAIRO_OPERATOR_COLOR_DODGE: brightens the destination color to reflect + * the source color. (Since 1.10) + * @CAIRO_OPERATOR_COLOR_BURN: darkens the destination color to reflect + * the source color. (Since 1.10) + * @CAIRO_OPERATOR_HARD_LIGHT: Multiplies or screens, dependent on source + * color. (Since 1.10) + * @CAIRO_OPERATOR_SOFT_LIGHT: Darkens or lightens, dependent on source + * color. (Since 1.10) + * @CAIRO_OPERATOR_DIFFERENCE: Takes the difference of the source and + * destination color. (Since 1.10) + * @CAIRO_OPERATOR_EXCLUSION: Produces an effect similar to difference, but + * with lower contrast. (Since 1.10) + * @CAIRO_OPERATOR_HSL_HUE: Creates a color with the hue of the source + * and the saturation and luminosity of the target. (Since 1.10) + * @CAIRO_OPERATOR_HSL_SATURATION: Creates a color with the saturation + * of the source and the hue and luminosity of the target. Painting with + * this mode onto a gray area produces no change. (Since 1.10) + * @CAIRO_OPERATOR_HSL_COLOR: Creates a color with the hue and saturation + * of the source and the luminosity of the target. This preserves the gray + * levels of the target and is useful for coloring monochrome images or + * tinting color images. (Since 1.10) + * @CAIRO_OPERATOR_HSL_LUMINOSITY: Creates a color with the luminosity of + * the source and the hue and saturation of the target. This produces an + * inverse effect to @CAIRO_OPERATOR_HSL_COLOR. (Since 1.10) + * + * #cairo_operator_t is used to set the compositing operator for all cairo + * drawing operations. + * + * The default operator is %CAIRO_OPERATOR_OVER. + * + * The operators marked as unbounded modify their + * destination even outside of the mask layer (that is, their effect is not + * bound by the mask layer). However, their effect can still be limited by + * way of clipping. + * + * To keep things simple, the operator descriptions here + * document the behavior for when both source and destination are either fully + * transparent or fully opaque. The actual implementation works for + * translucent layers too. + * For a more detailed explanation of the effects of each operator, including + * the mathematical definitions, see + * https://cairographics.org/operators/. + * + * Since: 1.0 + **/ +typedef enum _cairo_operator { + CAIRO_OPERATOR_CLEAR, + + CAIRO_OPERATOR_SOURCE, + CAIRO_OPERATOR_OVER, + CAIRO_OPERATOR_IN, + CAIRO_OPERATOR_OUT, + CAIRO_OPERATOR_ATOP, + + CAIRO_OPERATOR_DEST, + CAIRO_OPERATOR_DEST_OVER, + CAIRO_OPERATOR_DEST_IN, + CAIRO_OPERATOR_DEST_OUT, + CAIRO_OPERATOR_DEST_ATOP, + + CAIRO_OPERATOR_XOR, + CAIRO_OPERATOR_ADD, + CAIRO_OPERATOR_SATURATE, + + CAIRO_OPERATOR_MULTIPLY, + CAIRO_OPERATOR_SCREEN, + CAIRO_OPERATOR_OVERLAY, + CAIRO_OPERATOR_DARKEN, + CAIRO_OPERATOR_LIGHTEN, + CAIRO_OPERATOR_COLOR_DODGE, + CAIRO_OPERATOR_COLOR_BURN, + CAIRO_OPERATOR_HARD_LIGHT, + CAIRO_OPERATOR_SOFT_LIGHT, + CAIRO_OPERATOR_DIFFERENCE, + CAIRO_OPERATOR_EXCLUSION, + CAIRO_OPERATOR_HSL_HUE, + CAIRO_OPERATOR_HSL_SATURATION, + CAIRO_OPERATOR_HSL_COLOR, + CAIRO_OPERATOR_HSL_LUMINOSITY +} cairo_operator_t; + +cairo_public void +cairo_set_operator (cairo_t *cr, cairo_operator_t op); + +cairo_public void +cairo_set_source (cairo_t *cr, cairo_pattern_t *source); + +cairo_public void +cairo_set_source_rgb (cairo_t *cr, double red, double green, double blue); + +cairo_public void +cairo_set_source_rgba (cairo_t *cr, + double red, double green, double blue, + double alpha); + +cairo_public void +cairo_set_source_surface (cairo_t *cr, + cairo_surface_t *surface, + double x, + double y); + +cairo_public void +cairo_set_tolerance (cairo_t *cr, double tolerance); + +/** + * cairo_antialias_t: + * @CAIRO_ANTIALIAS_DEFAULT: Use the default antialiasing for + * the subsystem and target device, since 1.0 + * @CAIRO_ANTIALIAS_NONE: Use a bilevel alpha mask, since 1.0 + * @CAIRO_ANTIALIAS_GRAY: Perform single-color antialiasing (using + * shades of gray for black text on a white background, for example), since 1.0 + * @CAIRO_ANTIALIAS_SUBPIXEL: Perform antialiasing by taking + * advantage of the order of subpixel elements on devices + * such as LCD panels, since 1.0 + * @CAIRO_ANTIALIAS_FAST: Hint that the backend should perform some + * antialiasing but prefer speed over quality, since 1.12 + * @CAIRO_ANTIALIAS_GOOD: The backend should balance quality against + * performance, since 1.12 + * @CAIRO_ANTIALIAS_BEST: Hint that the backend should render at the highest + * quality, sacrificing speed if necessary, since 1.12 + * + * Specifies the type of antialiasing to do when rendering text or shapes. + * + * As it is not necessarily clear from the above what advantages a particular + * antialias method provides, since 1.12, there is also a set of hints: + * @CAIRO_ANTIALIAS_FAST: Allow the backend to degrade raster quality for speed + * @CAIRO_ANTIALIAS_GOOD: A balance between speed and quality + * @CAIRO_ANTIALIAS_BEST: A high-fidelity, but potentially slow, raster mode + * + * These make no guarantee on how the backend will perform its rasterisation + * (if it even rasterises!), nor that they have any differing effect other + * than to enable some form of antialiasing. In the case of glyph rendering, + * @CAIRO_ANTIALIAS_FAST and @CAIRO_ANTIALIAS_GOOD will be mapped to + * @CAIRO_ANTIALIAS_GRAY, with @CAIRO_ANTALIAS_BEST being equivalent to + * @CAIRO_ANTIALIAS_SUBPIXEL. + * + * The interpretation of @CAIRO_ANTIALIAS_DEFAULT is left entirely up to + * the backend, typically this will be similar to @CAIRO_ANTIALIAS_GOOD. + * + * Since: 1.0 + **/ +typedef enum _cairo_antialias { + CAIRO_ANTIALIAS_DEFAULT, + + /* method */ + CAIRO_ANTIALIAS_NONE, + CAIRO_ANTIALIAS_GRAY, + CAIRO_ANTIALIAS_SUBPIXEL, + + /* hints */ + CAIRO_ANTIALIAS_FAST, + CAIRO_ANTIALIAS_GOOD, + CAIRO_ANTIALIAS_BEST +} cairo_antialias_t; + +cairo_public void +cairo_set_antialias (cairo_t *cr, cairo_antialias_t antialias); + +/** + * cairo_fill_rule_t: + * @CAIRO_FILL_RULE_WINDING: If the path crosses the ray from + * left-to-right, counts +1. If the path crosses the ray + * from right to left, counts -1. (Left and right are determined + * from the perspective of looking along the ray from the starting + * point.) If the total count is non-zero, the point will be filled. (Since 1.0) + * @CAIRO_FILL_RULE_EVEN_ODD: Counts the total number of + * intersections, without regard to the orientation of the contour. If + * the total number of intersections is odd, the point will be + * filled. (Since 1.0) + * + * #cairo_fill_rule_t is used to select how paths are filled. For both + * fill rules, whether or not a point is included in the fill is + * determined by taking a ray from that point to infinity and looking + * at intersections with the path. The ray can be in any direction, + * as long as it doesn't pass through the end point of a segment + * or have a tricky intersection such as intersecting tangent to the path. + * (Note that filling is not actually implemented in this way. This + * is just a description of the rule that is applied.) + * + * The default fill rule is %CAIRO_FILL_RULE_WINDING. + * + * New entries may be added in future versions. + * + * Since: 1.0 + **/ +typedef enum _cairo_fill_rule { + CAIRO_FILL_RULE_WINDING, + CAIRO_FILL_RULE_EVEN_ODD +} cairo_fill_rule_t; + +cairo_public void +cairo_set_fill_rule (cairo_t *cr, cairo_fill_rule_t fill_rule); + +cairo_public void +cairo_set_line_width (cairo_t *cr, double width); + +cairo_public void +cairo_set_hairline (cairo_t *cr, cairo_bool_t set_hairline); + +/** + * cairo_line_cap_t: + * @CAIRO_LINE_CAP_BUTT: start(stop) the line exactly at the start(end) point (Since 1.0) + * @CAIRO_LINE_CAP_ROUND: use a round ending, the center of the circle is the end point (Since 1.0) + * @CAIRO_LINE_CAP_SQUARE: use squared ending, the center of the square is the end point (Since 1.0) + * + * Specifies how to render the endpoints of the path when stroking. + * + * The default line cap style is %CAIRO_LINE_CAP_BUTT. + * + * Since: 1.0 + **/ +typedef enum _cairo_line_cap { + CAIRO_LINE_CAP_BUTT, + CAIRO_LINE_CAP_ROUND, + CAIRO_LINE_CAP_SQUARE +} cairo_line_cap_t; + +cairo_public void +cairo_set_line_cap (cairo_t *cr, cairo_line_cap_t line_cap); + +/** + * cairo_line_join_t: + * @CAIRO_LINE_JOIN_MITER: use a sharp (angled) corner, see + * cairo_set_miter_limit() (Since 1.0) + * @CAIRO_LINE_JOIN_ROUND: use a rounded join, the center of the circle is the + * joint point (Since 1.0) + * @CAIRO_LINE_JOIN_BEVEL: use a cut-off join, the join is cut off at half + * the line width from the joint point (Since 1.0) + * + * Specifies how to render the junction of two lines when stroking. + * + * The default line join style is %CAIRO_LINE_JOIN_MITER. + * + * Since: 1.0 + **/ +typedef enum _cairo_line_join { + CAIRO_LINE_JOIN_MITER, + CAIRO_LINE_JOIN_ROUND, + CAIRO_LINE_JOIN_BEVEL +} cairo_line_join_t; + +cairo_public void +cairo_set_line_join (cairo_t *cr, cairo_line_join_t line_join); + +cairo_public void +cairo_set_dash (cairo_t *cr, + const double *dashes, + int num_dashes, + double offset); + +cairo_public void +cairo_set_miter_limit (cairo_t *cr, double limit); + +cairo_public void +cairo_translate (cairo_t *cr, double tx, double ty); + +cairo_public void +cairo_scale (cairo_t *cr, double sx, double sy); + +cairo_public void +cairo_rotate (cairo_t *cr, double angle); + +cairo_public void +cairo_transform (cairo_t *cr, + const cairo_matrix_t *matrix); + +cairo_public void +cairo_set_matrix (cairo_t *cr, + const cairo_matrix_t *matrix); + +cairo_public void +cairo_identity_matrix (cairo_t *cr); + +cairo_public void +cairo_user_to_device (cairo_t *cr, double *x, double *y); + +cairo_public void +cairo_user_to_device_distance (cairo_t *cr, double *dx, double *dy); + +cairo_public void +cairo_device_to_user (cairo_t *cr, double *x, double *y); + +cairo_public void +cairo_device_to_user_distance (cairo_t *cr, double *dx, double *dy); + +/* Path creation functions */ +cairo_public void +cairo_new_path (cairo_t *cr); + +cairo_public void +cairo_move_to (cairo_t *cr, double x, double y); + +cairo_public void +cairo_new_sub_path (cairo_t *cr); + +cairo_public void +cairo_line_to (cairo_t *cr, double x, double y); + +cairo_public void +cairo_curve_to (cairo_t *cr, + double x1, double y1, + double x2, double y2, + double x3, double y3); + +cairo_public void +cairo_arc (cairo_t *cr, + double xc, double yc, + double radius, + double angle1, double angle2); + +cairo_public void +cairo_arc_negative (cairo_t *cr, + double xc, double yc, + double radius, + double angle1, double angle2); + +/* XXX: NYI +cairo_public void +cairo_arc_to (cairo_t *cr, + double x1, double y1, + double x2, double y2, + double radius); +*/ + +cairo_public void +cairo_rel_move_to (cairo_t *cr, double dx, double dy); + +cairo_public void +cairo_rel_line_to (cairo_t *cr, double dx, double dy); + +cairo_public void +cairo_rel_curve_to (cairo_t *cr, + double dx1, double dy1, + double dx2, double dy2, + double dx3, double dy3); + +cairo_public void +cairo_rectangle (cairo_t *cr, + double x, double y, + double width, double height); + +/* XXX: NYI +cairo_public void +cairo_stroke_to_path (cairo_t *cr); +*/ + +cairo_public void +cairo_close_path (cairo_t *cr); + +cairo_public void +cairo_path_extents (cairo_t *cr, + double *x1, double *y1, + double *x2, double *y2); + +/* Painting functions */ +cairo_public void +cairo_paint (cairo_t *cr); + +cairo_public void +cairo_paint_with_alpha (cairo_t *cr, + double alpha); + +cairo_public void +cairo_mask (cairo_t *cr, + cairo_pattern_t *pattern); + +cairo_public void +cairo_mask_surface (cairo_t *cr, + cairo_surface_t *surface, + double surface_x, + double surface_y); + +cairo_public void +cairo_stroke (cairo_t *cr); + +cairo_public void +cairo_stroke_preserve (cairo_t *cr); + +cairo_public void +cairo_fill (cairo_t *cr); + +cairo_public void +cairo_fill_preserve (cairo_t *cr); + +cairo_public void +cairo_copy_page (cairo_t *cr); + +cairo_public void +cairo_show_page (cairo_t *cr); + +/* Insideness testing */ +cairo_public cairo_bool_t +cairo_in_stroke (cairo_t *cr, double x, double y); + +cairo_public cairo_bool_t +cairo_in_fill (cairo_t *cr, double x, double y); + +cairo_public cairo_bool_t +cairo_in_clip (cairo_t *cr, double x, double y); + +/* Rectangular extents */ +cairo_public void +cairo_stroke_extents (cairo_t *cr, + double *x1, double *y1, + double *x2, double *y2); + +cairo_public void +cairo_fill_extents (cairo_t *cr, + double *x1, double *y1, + double *x2, double *y2); + +/* Clipping */ +cairo_public void +cairo_reset_clip (cairo_t *cr); + +cairo_public void +cairo_clip (cairo_t *cr); + +cairo_public void +cairo_clip_preserve (cairo_t *cr); + +cairo_public void +cairo_clip_extents (cairo_t *cr, + double *x1, double *y1, + double *x2, double *y2); + +/** + * cairo_rectangle_t: + * @x: X coordinate of the left side of the rectangle + * @y: Y coordinate of the top side of the rectangle + * @width: width of the rectangle + * @height: height of the rectangle + * + * A data structure for holding a rectangle. + * + * Since: 1.4 + **/ +typedef struct _cairo_rectangle { + double x, y, width, height; +} cairo_rectangle_t; + +/** + * cairo_rectangle_list_t: + * @status: Error status of the rectangle list + * @rectangles: Array containing the rectangles + * @num_rectangles: Number of rectangles in this list + * + * A data structure for holding a dynamically allocated + * array of rectangles. + * + * Since: 1.4 + **/ +typedef struct _cairo_rectangle_list { + cairo_status_t status; + cairo_rectangle_t *rectangles; + int num_rectangles; +} cairo_rectangle_list_t; + +cairo_public cairo_rectangle_list_t * +cairo_copy_clip_rectangle_list (cairo_t *cr); + +cairo_public void +cairo_rectangle_list_destroy (cairo_rectangle_list_t *rectangle_list); + +/* Logical structure tagging functions */ + +#define CAIRO_TAG_DEST "cairo.dest" +#define CAIRO_TAG_LINK "Link" +#define CAIRO_TAG_CONTENT "cairo.content" +#define CAIRO_TAG_CONTENT_REF "cairo.content_ref" + +cairo_public void +cairo_tag_begin (cairo_t *cr, const char *tag_name, const char *attributes); + +cairo_public void +cairo_tag_end (cairo_t *cr, const char *tag_name); + +/* Font/Text functions */ + +/** + * cairo_scaled_font_t: + * + * A #cairo_scaled_font_t is a font scaled to a particular size and device + * resolution. A #cairo_scaled_font_t is most useful for low-level font + * usage where a library or application wants to cache a reference + * to a scaled font to speed up the computation of metrics. + * + * There are various types of scaled fonts, depending on the + * font backend they use. The type of a + * scaled font can be queried using cairo_scaled_font_get_type(). + * + * Memory management of #cairo_scaled_font_t is done with + * cairo_scaled_font_reference() and cairo_scaled_font_destroy(). + * + * Since: 1.0 + **/ +typedef struct _cairo_scaled_font cairo_scaled_font_t; + +/** + * cairo_font_face_t: + * + * A #cairo_font_face_t specifies all aspects of a font other + * than the size or font matrix (a font matrix is used to distort + * a font by shearing it or scaling it unequally in the two + * directions) . A font face can be set on a #cairo_t by using + * cairo_set_font_face(); the size and font matrix are set with + * cairo_set_font_size() and cairo_set_font_matrix(). + * + * There are various types of font faces, depending on the + * font backend they use. The type of a + * font face can be queried using cairo_font_face_get_type(). + * + * Memory management of #cairo_font_face_t is done with + * cairo_font_face_reference() and cairo_font_face_destroy(). + * + * Since: 1.0 + **/ +typedef struct _cairo_font_face cairo_font_face_t; + +/** + * cairo_glyph_t: + * @index: glyph index in the font. The exact interpretation of the + * glyph index depends on the font technology being used. + * @x: the offset in the X direction between the origin used for + * drawing or measuring the string and the origin of this glyph. + * @y: the offset in the Y direction between the origin used for + * drawing or measuring the string and the origin of this glyph. + * + * The #cairo_glyph_t structure holds information about a single glyph + * when drawing or measuring text. A font is (in simple terms) a + * collection of shapes used to draw text. A glyph is one of these + * shapes. There can be multiple glyphs for a single character + * (alternates to be used in different contexts, for example), or a + * glyph can be a ligature of multiple + * characters. Cairo doesn't expose any way of converting input text + * into glyphs, so in order to use the Cairo interfaces that take + * arrays of glyphs, you must directly access the appropriate + * underlying font system. + * + * Note that the offsets given by @x and @y are not cumulative. When + * drawing or measuring text, each glyph is individually positioned + * with respect to the overall origin + * + * Since: 1.0 + **/ +typedef struct { + unsigned long index; + double x; + double y; +} cairo_glyph_t; + +cairo_public cairo_glyph_t * +cairo_glyph_allocate (int num_glyphs); + +cairo_public void +cairo_glyph_free (cairo_glyph_t *glyphs); + +/** + * cairo_text_cluster_t: + * @num_bytes: the number of bytes of UTF-8 text covered by cluster + * @num_glyphs: the number of glyphs covered by cluster + * + * The #cairo_text_cluster_t structure holds information about a single + * text cluster. A text cluster is a minimal + * mapping of some glyphs corresponding to some UTF-8 text. + * + * For a cluster to be valid, both @num_bytes and @num_glyphs should + * be non-negative, and at least one should be non-zero. + * Note that clusters with zero glyphs are not as well supported as + * normal clusters. For example, PDF rendering applications typically + * ignore those clusters when PDF text is being selected. + * + * See cairo_show_text_glyphs() for how clusters are used in advanced + * text operations. + * + * Since: 1.8 + **/ +typedef struct { + int num_bytes; + int num_glyphs; +} cairo_text_cluster_t; + +cairo_public cairo_text_cluster_t * +cairo_text_cluster_allocate (int num_clusters); + +cairo_public void +cairo_text_cluster_free (cairo_text_cluster_t *clusters); + +/** + * cairo_text_cluster_flags_t: + * @CAIRO_TEXT_CLUSTER_FLAG_BACKWARD: The clusters in the cluster array + * map to glyphs in the glyph array from end to start. (Since 1.8) + * + * Specifies properties of a text cluster mapping. + * + * Since: 1.8 + **/ +typedef enum _cairo_text_cluster_flags { + CAIRO_TEXT_CLUSTER_FLAG_BACKWARD = 0x00000001 +} cairo_text_cluster_flags_t; + +/** + * cairo_text_extents_t: + * @x_bearing: the horizontal distance from the origin to the + * leftmost part of the glyphs as drawn. Positive if the + * glyphs lie entirely to the right of the origin. + * @y_bearing: the vertical distance from the origin to the + * topmost part of the glyphs as drawn. Positive only if the + * glyphs lie completely below the origin; will usually be + * negative. + * @width: width of the glyphs as drawn + * @height: height of the glyphs as drawn + * @x_advance:distance to advance in the X direction + * after drawing these glyphs + * @y_advance: distance to advance in the Y direction + * after drawing these glyphs. Will typically be zero except + * for vertical text layout as found in East-Asian languages. + * + * The #cairo_text_extents_t structure stores the extents of a single + * glyph or a string of glyphs in user-space coordinates. Because text + * extents are in user-space coordinates, they are mostly, but not + * entirely, independent of the current transformation matrix. If you call + * cairo_scale(cr, 2.0, 2.0), text will + * be drawn twice as big, but the reported text extents will not be + * doubled. They will change slightly due to hinting (so you can't + * assume that metrics are independent of the transformation matrix), + * but otherwise will remain unchanged. + * + * Since: 1.0 + **/ +typedef struct { + double x_bearing; + double y_bearing; + double width; + double height; + double x_advance; + double y_advance; +} cairo_text_extents_t; + +/** + * cairo_font_extents_t: + * @ascent: the distance that the font extends above the baseline. + * Note that this is not always exactly equal to the maximum + * of the extents of all the glyphs in the font, but rather + * is picked to express the font designer's intent as to + * how the font should align with elements above it. + * @descent: the distance that the font extends below the baseline. + * This value is positive for typical fonts that include + * portions below the baseline. Note that this is not always + * exactly equal to the maximum of the extents of all the + * glyphs in the font, but rather is picked to express the + * font designer's intent as to how the font should + * align with elements below it. + * @height: the recommended vertical distance between baselines when + * setting consecutive lines of text with the font. This + * is greater than @ascent+@descent by a + * quantity known as the line spacing + * or external leading. When space + * is at a premium, most fonts can be set with only + * a distance of @ascent+@descent between lines. + * @max_x_advance: the maximum distance in the X direction that + * the origin is advanced for any glyph in the font. + * @max_y_advance: the maximum distance in the Y direction that + * the origin is advanced for any glyph in the font. + * This will be zero for normal fonts used for horizontal + * writing. (The scripts of East Asia are sometimes written + * vertically.) + * + * The #cairo_font_extents_t structure stores metric information for + * a font. Values are given in the current user-space coordinate + * system. + * + * Because font metrics are in user-space coordinates, they are + * mostly, but not entirely, independent of the current transformation + * matrix. If you call cairo_scale(cr, 2.0, 2.0), + * text will be drawn twice as big, but the reported text extents will + * not be doubled. They will change slightly due to hinting (so you + * can't assume that metrics are independent of the transformation + * matrix), but otherwise will remain unchanged. + * + * Since: 1.0 + **/ +typedef struct { + double ascent; + double descent; + double height; + double max_x_advance; + double max_y_advance; +} cairo_font_extents_t; + +/** + * cairo_font_slant_t: + * @CAIRO_FONT_SLANT_NORMAL: Upright font style, since 1.0 + * @CAIRO_FONT_SLANT_ITALIC: Italic font style, since 1.0 + * @CAIRO_FONT_SLANT_OBLIQUE: Oblique font style, since 1.0 + * + * Specifies variants of a font face based on their slant. + * + * Since: 1.0 + **/ +typedef enum _cairo_font_slant { + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_SLANT_ITALIC, + CAIRO_FONT_SLANT_OBLIQUE +} cairo_font_slant_t; + +/** + * cairo_font_weight_t: + * @CAIRO_FONT_WEIGHT_NORMAL: Normal font weight, since 1.0 + * @CAIRO_FONT_WEIGHT_BOLD: Bold font weight, since 1.0 + * + * Specifies variants of a font face based on their weight. + * + * Since: 1.0 + **/ +typedef enum _cairo_font_weight { + CAIRO_FONT_WEIGHT_NORMAL, + CAIRO_FONT_WEIGHT_BOLD +} cairo_font_weight_t; + +/** + * cairo_subpixel_order_t: + * @CAIRO_SUBPIXEL_ORDER_DEFAULT: Use the default subpixel order for + * for the target device, since 1.0 + * @CAIRO_SUBPIXEL_ORDER_RGB: Subpixel elements are arranged horizontally + * with red at the left, since 1.0 + * @CAIRO_SUBPIXEL_ORDER_BGR: Subpixel elements are arranged horizontally + * with blue at the left, since 1.0 + * @CAIRO_SUBPIXEL_ORDER_VRGB: Subpixel elements are arranged vertically + * with red at the top, since 1.0 + * @CAIRO_SUBPIXEL_ORDER_VBGR: Subpixel elements are arranged vertically + * with blue at the top, since 1.0 + * + * The subpixel order specifies the order of color elements within + * each pixel on the display device when rendering with an + * antialiasing mode of %CAIRO_ANTIALIAS_SUBPIXEL. + * + * Since: 1.0 + **/ +typedef enum _cairo_subpixel_order { + CAIRO_SUBPIXEL_ORDER_DEFAULT, + CAIRO_SUBPIXEL_ORDER_RGB, + CAIRO_SUBPIXEL_ORDER_BGR, + CAIRO_SUBPIXEL_ORDER_VRGB, + CAIRO_SUBPIXEL_ORDER_VBGR +} cairo_subpixel_order_t; + +/** + * cairo_hint_style_t: + * @CAIRO_HINT_STYLE_DEFAULT: Use the default hint style for + * font backend and target device, since 1.0 + * @CAIRO_HINT_STYLE_NONE: Do not hint outlines, since 1.0 + * @CAIRO_HINT_STYLE_SLIGHT: Hint outlines slightly to improve + * contrast while retaining good fidelity to the original + * shapes, since 1.0 + * @CAIRO_HINT_STYLE_MEDIUM: Hint outlines with medium strength + * giving a compromise between fidelity to the original shapes + * and contrast, since 1.0 + * @CAIRO_HINT_STYLE_FULL: Hint outlines to maximize contrast, since 1.0 + * + * Specifies the type of hinting to do on font outlines. Hinting + * is the process of fitting outlines to the pixel grid in order + * to improve the appearance of the result. Since hinting outlines + * involves distorting them, it also reduces the faithfulness + * to the original outline shapes. Not all of the outline hinting + * styles are supported by all font backends. + * + * New entries may be added in future versions. + * + * Since: 1.0 + **/ +typedef enum _cairo_hint_style { + CAIRO_HINT_STYLE_DEFAULT, + CAIRO_HINT_STYLE_NONE, + CAIRO_HINT_STYLE_SLIGHT, + CAIRO_HINT_STYLE_MEDIUM, + CAIRO_HINT_STYLE_FULL +} cairo_hint_style_t; + +/** + * cairo_hint_metrics_t: + * @CAIRO_HINT_METRICS_DEFAULT: Hint metrics in the default + * manner for the font backend and target device, since 1.0 + * @CAIRO_HINT_METRICS_OFF: Do not hint font metrics, since 1.0 + * @CAIRO_HINT_METRICS_ON: Hint font metrics, since 1.0 + * + * Specifies whether to hint font metrics; hinting font metrics + * means quantizing them so that they are integer values in + * device space. Doing this improves the consistency of + * letter and line spacing, however it also means that text + * will be laid out differently at different zoom factors. + * + * Since: 1.0 + **/ +typedef enum _cairo_hint_metrics { + CAIRO_HINT_METRICS_DEFAULT, + CAIRO_HINT_METRICS_OFF, + CAIRO_HINT_METRICS_ON +} cairo_hint_metrics_t; + +/** + * cairo_color_mode_t: + * @CAIRO_COLOR_MODE_DEFAULT: Use the default color mode for + * font backend and target device, since 1.18. + * @CAIRO_COLOR_MODE_NO_COLOR: Disable rendering color glyphs. Glyphs are + * always rendered as outline glyphs, since 1.18. + * @CAIRO_COLOR_MODE_COLOR: Enable rendering color glyphs. If the font + * contains a color presentation for a glyph, and when supported by + * the font backend, the glyph will be rendered in color, since 1.18. + * + * Specifies if color fonts are to be rendered using the color + * glyphs or outline glyphs. Glyphs that do not have a color + * presentation, and non-color fonts are not affected by this font + * option. + * + * Since: 1.18 + **/ +typedef enum _cairo_color_mode { + CAIRO_COLOR_MODE_DEFAULT, + CAIRO_COLOR_MODE_NO_COLOR, + CAIRO_COLOR_MODE_COLOR +} cairo_color_mode_t; + +/** + * cairo_font_options_t: + * + * An opaque structure holding all options that are used when + * rendering fonts. + * + * Individual features of a #cairo_font_options_t can be set or + * accessed using functions named + * cairo_font_options_set_feature_name() and + * cairo_font_options_get_feature_name(), like + * cairo_font_options_set_antialias() and + * cairo_font_options_get_antialias(). + * + * New features may be added to a #cairo_font_options_t in the + * future. For this reason, cairo_font_options_copy(), + * cairo_font_options_equal(), cairo_font_options_merge(), and + * cairo_font_options_hash() should be used to copy, check + * for equality, merge, or compute a hash value of + * #cairo_font_options_t objects. + * + * Since: 1.0 + **/ +typedef struct _cairo_font_options cairo_font_options_t; + +cairo_public cairo_font_options_t * +cairo_font_options_create (void); + +cairo_public cairo_font_options_t * +cairo_font_options_copy (const cairo_font_options_t *original); + +cairo_public void +cairo_font_options_destroy (cairo_font_options_t *options); + +cairo_public cairo_status_t +cairo_font_options_status (cairo_font_options_t *options); + +cairo_public void +cairo_font_options_merge (cairo_font_options_t *options, + const cairo_font_options_t *other); +cairo_public cairo_bool_t +cairo_font_options_equal (const cairo_font_options_t *options, + const cairo_font_options_t *other); + +cairo_public unsigned long +cairo_font_options_hash (const cairo_font_options_t *options); + +cairo_public void +cairo_font_options_set_antialias (cairo_font_options_t *options, + cairo_antialias_t antialias); +cairo_public cairo_antialias_t +cairo_font_options_get_antialias (const cairo_font_options_t *options); + +cairo_public void +cairo_font_options_set_subpixel_order (cairo_font_options_t *options, + cairo_subpixel_order_t subpixel_order); +cairo_public cairo_subpixel_order_t +cairo_font_options_get_subpixel_order (const cairo_font_options_t *options); + +cairo_public void +cairo_font_options_set_hint_style (cairo_font_options_t *options, + cairo_hint_style_t hint_style); +cairo_public cairo_hint_style_t +cairo_font_options_get_hint_style (const cairo_font_options_t *options); + +cairo_public void +cairo_font_options_set_hint_metrics (cairo_font_options_t *options, + cairo_hint_metrics_t hint_metrics); +cairo_public cairo_hint_metrics_t +cairo_font_options_get_hint_metrics (const cairo_font_options_t *options); + +cairo_public const char * +cairo_font_options_get_variations (cairo_font_options_t *options); + +cairo_public void +cairo_font_options_set_variations (cairo_font_options_t *options, + const char *variations); + +#define CAIRO_COLOR_PALETTE_DEFAULT 0 + +cairo_public void +cairo_font_options_set_color_mode (cairo_font_options_t *options, + cairo_color_mode_t color_mode); + +cairo_public cairo_color_mode_t +cairo_font_options_get_color_mode (const cairo_font_options_t *options); + +cairo_public unsigned int +cairo_font_options_get_color_palette (const cairo_font_options_t *options); + +cairo_public void +cairo_font_options_set_color_palette (cairo_font_options_t *options, + unsigned int palette_index); + +cairo_public void +cairo_font_options_set_custom_palette_color (cairo_font_options_t *options, + unsigned int index, + double red, double green, + double blue, double alpha); + +cairo_public cairo_status_t +cairo_font_options_get_custom_palette_color (cairo_font_options_t *options, + unsigned int index, + double *red, double *green, + double *blue, double *alpha); + +/* This interface is for dealing with text as text, not caring about the + font object inside the cairo_t. */ + +cairo_public void +cairo_select_font_face (cairo_t *cr, + const char *family, + cairo_font_slant_t slant, + cairo_font_weight_t weight); + +cairo_public void +cairo_set_font_size (cairo_t *cr, double size); + +cairo_public void +cairo_set_font_matrix (cairo_t *cr, + const cairo_matrix_t *matrix); + +cairo_public void +cairo_get_font_matrix (cairo_t *cr, + cairo_matrix_t *matrix); + +cairo_public void +cairo_set_font_options (cairo_t *cr, + const cairo_font_options_t *options); + +cairo_public void +cairo_get_font_options (cairo_t *cr, + cairo_font_options_t *options); + +cairo_public void +cairo_set_font_face (cairo_t *cr, cairo_font_face_t *font_face); + +cairo_public cairo_font_face_t * +cairo_get_font_face (cairo_t *cr); + +cairo_public void +cairo_set_scaled_font (cairo_t *cr, + const cairo_scaled_font_t *scaled_font); + +cairo_public cairo_scaled_font_t * +cairo_get_scaled_font (cairo_t *cr); + +cairo_public void +cairo_show_text (cairo_t *cr, const char *utf8); + +cairo_public void +cairo_show_glyphs (cairo_t *cr, const cairo_glyph_t *glyphs, int num_glyphs); + +cairo_public void +cairo_show_text_glyphs (cairo_t *cr, + const char *utf8, + int utf8_len, + const cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags); + +cairo_public void +cairo_text_path (cairo_t *cr, const char *utf8); + +cairo_public void +cairo_glyph_path (cairo_t *cr, const cairo_glyph_t *glyphs, int num_glyphs); + +cairo_public void +cairo_text_extents (cairo_t *cr, + const char *utf8, + cairo_text_extents_t *extents); + +cairo_public void +cairo_glyph_extents (cairo_t *cr, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_text_extents_t *extents); + +cairo_public void +cairo_font_extents (cairo_t *cr, + cairo_font_extents_t *extents); + +/* Generic identifier for a font style */ + +cairo_public cairo_font_face_t * +cairo_font_face_reference (cairo_font_face_t *font_face); + +cairo_public void +cairo_font_face_destroy (cairo_font_face_t *font_face); + +cairo_public unsigned int +cairo_font_face_get_reference_count (cairo_font_face_t *font_face); + +cairo_public cairo_status_t +cairo_font_face_status (cairo_font_face_t *font_face); + + +/** + * cairo_font_type_t: + * @CAIRO_FONT_TYPE_TOY: The font was created using cairo's toy font api (Since: 1.2) + * @CAIRO_FONT_TYPE_FT: The font is of type FreeType (Since: 1.2) + * @CAIRO_FONT_TYPE_WIN32: The font is of type Win32 (Since: 1.2) + * @CAIRO_FONT_TYPE_QUARTZ: The font is of type Quartz (Since: 1.6, in 1.2 and + * 1.4 it was named CAIRO_FONT_TYPE_ATSUI) + * @CAIRO_FONT_TYPE_USER: The font was create using cairo's user font api (Since: 1.8) + * @CAIRO_FONT_TYPE_DWRITE: The font is of type Win32 DWrite (Since: 1.18) + * + * #cairo_font_type_t is used to describe the type of a given font + * face or scaled font. The font types are also known as "font + * backends" within cairo. + * + * The type of a font face is determined by the function used to + * create it, which will generally be of the form + * cairo_type_font_face_create(). + * The font face type can be queried with cairo_font_face_get_type() + * + * The various #cairo_font_face_t functions can be used with a font face + * of any type. + * + * The type of a scaled font is determined by the type of the font + * face passed to cairo_scaled_font_create(). The scaled font type can + * be queried with cairo_scaled_font_get_type() + * + * The various #cairo_scaled_font_t functions can be used with scaled + * fonts of any type, but some font backends also provide + * type-specific functions that must only be called with a scaled font + * of the appropriate type. These functions have names that begin with + * cairo_type_scaled_font() + * such as cairo_ft_scaled_font_lock_face(). + * + * The behavior of calling a type-specific function with a scaled font + * of the wrong type is undefined. + * + * New entries may be added in future versions. + * + * Since: 1.2 + **/ +typedef enum _cairo_font_type { + CAIRO_FONT_TYPE_TOY, + CAIRO_FONT_TYPE_FT, + CAIRO_FONT_TYPE_WIN32, + CAIRO_FONT_TYPE_QUARTZ, + CAIRO_FONT_TYPE_USER, + CAIRO_FONT_TYPE_DWRITE +} cairo_font_type_t; + +cairo_public cairo_font_type_t +cairo_font_face_get_type (cairo_font_face_t *font_face); + +cairo_public void * +cairo_font_face_get_user_data (cairo_font_face_t *font_face, + const cairo_user_data_key_t *key); + +cairo_public cairo_status_t +cairo_font_face_set_user_data (cairo_font_face_t *font_face, + const cairo_user_data_key_t *key, + void *user_data, + cairo_destroy_func_t destroy); + +/* Portable interface to general font features. */ + +cairo_public cairo_scaled_font_t * +cairo_scaled_font_create (cairo_font_face_t *font_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options); + +cairo_public cairo_scaled_font_t * +cairo_scaled_font_reference (cairo_scaled_font_t *scaled_font); + +cairo_public void +cairo_scaled_font_destroy (cairo_scaled_font_t *scaled_font); + +cairo_public unsigned int +cairo_scaled_font_get_reference_count (cairo_scaled_font_t *scaled_font); + +cairo_public cairo_status_t +cairo_scaled_font_status (cairo_scaled_font_t *scaled_font); + +cairo_public cairo_font_type_t +cairo_scaled_font_get_type (cairo_scaled_font_t *scaled_font); + +cairo_public void * +cairo_scaled_font_get_user_data (cairo_scaled_font_t *scaled_font, + const cairo_user_data_key_t *key); + +cairo_public cairo_status_t +cairo_scaled_font_set_user_data (cairo_scaled_font_t *scaled_font, + const cairo_user_data_key_t *key, + void *user_data, + cairo_destroy_func_t destroy); + +cairo_public void +cairo_scaled_font_extents (cairo_scaled_font_t *scaled_font, + cairo_font_extents_t *extents); + +cairo_public void +cairo_scaled_font_text_extents (cairo_scaled_font_t *scaled_font, + const char *utf8, + cairo_text_extents_t *extents); + +cairo_public void +cairo_scaled_font_glyph_extents (cairo_scaled_font_t *scaled_font, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_text_extents_t *extents); + +cairo_public cairo_status_t +cairo_scaled_font_text_to_glyphs (cairo_scaled_font_t *scaled_font, + double x, + double y, + const char *utf8, + int utf8_len, + cairo_glyph_t **glyphs, + int *num_glyphs, + cairo_text_cluster_t **clusters, + int *num_clusters, + cairo_text_cluster_flags_t *cluster_flags); + +cairo_public cairo_font_face_t * +cairo_scaled_font_get_font_face (cairo_scaled_font_t *scaled_font); + +cairo_public void +cairo_scaled_font_get_font_matrix (cairo_scaled_font_t *scaled_font, + cairo_matrix_t *font_matrix); + +cairo_public void +cairo_scaled_font_get_ctm (cairo_scaled_font_t *scaled_font, + cairo_matrix_t *ctm); + +cairo_public void +cairo_scaled_font_get_scale_matrix (cairo_scaled_font_t *scaled_font, + cairo_matrix_t *scale_matrix); + +cairo_public void +cairo_scaled_font_get_font_options (cairo_scaled_font_t *scaled_font, + cairo_font_options_t *options); + + +/* Toy fonts */ + +cairo_public cairo_font_face_t * +cairo_toy_font_face_create (const char *family, + cairo_font_slant_t slant, + cairo_font_weight_t weight); + +cairo_public const char * +cairo_toy_font_face_get_family (cairo_font_face_t *font_face); + +cairo_public cairo_font_slant_t +cairo_toy_font_face_get_slant (cairo_font_face_t *font_face); + +cairo_public cairo_font_weight_t +cairo_toy_font_face_get_weight (cairo_font_face_t *font_face); + + +/* User fonts */ + +cairo_public cairo_font_face_t * +cairo_user_font_face_create (void); + +/* User-font method signatures */ + +/** + * cairo_user_scaled_font_init_func_t: + * @scaled_font: the scaled-font being created + * @cr: a cairo context, in font space + * @extents: font extents to fill in, in font space + * + * #cairo_user_scaled_font_init_func_t is the type of function which is + * called when a scaled-font needs to be created for a user font-face. + * + * The cairo context @cr is not used by the caller, but is prepared in font + * space, similar to what the cairo contexts passed to the render_glyph + * method will look like. The callback can use this context for extents + * computation for example. After the callback is called, @cr is checked + * for any error status. + * + * The @extents argument is where the user font sets the font extents for + * @scaled_font. It is in font space, which means that for most cases its + * ascent and descent members should add to 1.0. @extents is preset to + * hold a value of 1.0 for ascent, height, and max_x_advance, and 0.0 for + * descent and max_y_advance members. + * + * The callback is optional. If not set, default font extents as described + * in the previous paragraph will be used. + * + * Note that @scaled_font is not fully initialized at this + * point and trying to use it for text operations in the callback will result + * in deadlock. + * + * Returns: %CAIRO_STATUS_SUCCESS upon success, or an error status on error. + * + * Since: 1.8 + **/ +typedef cairo_status_t (*cairo_user_scaled_font_init_func_t) (cairo_scaled_font_t *scaled_font, + cairo_t *cr, + cairo_font_extents_t *extents); + +/** + * cairo_user_scaled_font_render_glyph_func_t: + * @scaled_font: user scaled-font + * @glyph: glyph code to render + * @cr: cairo context to draw to, in font space + * @extents: glyph extents to fill in, in font space + * + * #cairo_user_scaled_font_render_glyph_func_t is the type of function which + * is called when a user scaled-font needs to render a glyph. + * + * The callback is mandatory, and expected to draw the glyph with code @glyph to + * the cairo context @cr. @cr is prepared such that the glyph drawing is done in + * font space. That is, the matrix set on @cr is the scale matrix of @scaled_font. + * The @extents argument is where the user font sets the font extents for + * @scaled_font. However, if user prefers to draw in user space, they can + * achieve that by changing the matrix on @cr. + * + * All cairo rendering operations to @cr are permitted. However, when + * this callback is set with + * cairo_user_font_face_set_render_glyph_func(), the result is + * undefined if any source other than the default source on @cr is + * used. That means, glyph bitmaps should be rendered using + * cairo_mask() instead of cairo_paint(). + * + * When this callback is set with + * cairo_user_font_face_set_render_color_glyph_func(), the default + * source is black. Setting the source is a valid + * operation. cairo_user_scaled_font_get_foreground_marker() or + * cairo_user_scaled_font_get_foreground_source() may be called to + * obtain the current source at the time the glyph is rendered. + * + * Other non-default settings on @cr include a font size of 1.0 (given that + * it is set up to be in font space), and font options corresponding to + * @scaled_font. + * + * The @extents argument is preset to have x_bearing, + * width, and y_advance of zero, + * y_bearing set to -font_extents.ascent, + * height to font_extents.ascent+font_extents.descent, + * and x_advance to font_extents.max_x_advance. + * The only field user needs to set in majority of cases is + * x_advance. + * If the width field is zero upon the callback returning + * (which is its preset value), the glyph extents are automatically computed + * based on the drawings done to @cr. This is in most cases exactly what the + * desired behavior is. However, if for any reason the callback sets the + * extents, it must be ink extents, and include the extents of all drawing + * done to @cr in the callback. + * + * Where both color and non-color callbacks has been set using + * cairo_user_font_face_set_render_color_glyph_func(), and + * cairo_user_font_face_set_render_glyph_func(), the color glyph + * callback will be called first. If the color glyph callback returns + * %CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED, any drawing operations are + * discarded and the non-color callback will be called. This is the + * only case in which the %CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED may + * be returned from a render callback. This fallback sequence allows a + * user font face to contain a combination of both color and non-color + * glyphs. + * + * Returns: %CAIRO_STATUS_SUCCESS upon success, + * %CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED if fallback options should be tried, + * or %CAIRO_STATUS_USER_FONT_ERROR or any other error status on error. + * + * Since: 1.8 + **/ +typedef cairo_status_t (*cairo_user_scaled_font_render_glyph_func_t) (cairo_scaled_font_t *scaled_font, + unsigned long glyph, + cairo_t *cr, + cairo_text_extents_t *extents); + +/** + * cairo_user_scaled_font_text_to_glyphs_func_t: + * @scaled_font: the scaled-font being created + * @utf8: a string of text encoded in UTF-8 + * @utf8_len: length of @utf8 in bytes + * @glyphs: pointer to array of glyphs to fill, in font space + * @num_glyphs: pointer to number of glyphs + * @clusters: pointer to array of cluster mapping information to fill, or %NULL + * @num_clusters: pointer to number of clusters + * @cluster_flags: pointer to location to store cluster flags corresponding to the + * output @clusters + * + * #cairo_user_scaled_font_text_to_glyphs_func_t is the type of function which + * is called to convert input text to an array of glyphs. This is used by the + * cairo_show_text() operation. + * + * Using this callback the user-font has full control on glyphs and their + * positions. That means, it allows for features like ligatures and kerning, + * as well as complex shaping required for scripts like + * Arabic and Indic. + * + * The @num_glyphs argument is preset to the number of glyph entries available + * in the @glyphs buffer. If the @glyphs buffer is %NULL, the value of + * @num_glyphs will be zero. If the provided glyph array is too short for + * the conversion (or for convenience), a new glyph array may be allocated + * using cairo_glyph_allocate() and placed in @glyphs. Upon return, + * @num_glyphs should contain the number of generated glyphs. If the value + * @glyphs points at has changed after the call, the caller will free the + * allocated glyph array using cairo_glyph_free(). The caller will also free + * the original value of @glyphs, so the callback shouldn't do so. + * The callback should populate the glyph indices and positions (in font space) + * assuming that the text is to be shown at the origin. + * + * If @clusters is not %NULL, @num_clusters and @cluster_flags are also + * non-%NULL, and cluster mapping should be computed. The semantics of how + * cluster array allocation works is similar to the glyph array. That is, + * if @clusters initially points to a non-%NULL value, that array may be used + * as a cluster buffer, and @num_clusters points to the number of cluster + * entries available there. If the provided cluster array is too short for + * the conversion (or for convenience), a new cluster array may be allocated + * using cairo_text_cluster_allocate() and placed in @clusters. In this case, + * the original value of @clusters will still be freed by the caller. Upon + * return, @num_clusters should contain the number of generated clusters. + * If the value @clusters points at has changed after the call, the caller + * will free the allocated cluster array using cairo_text_cluster_free(). + * + * The callback is optional. If @num_glyphs is negative upon + * the callback returning or if the return value + * is %CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED, the unicode_to_glyph callback + * is tried. See #cairo_user_scaled_font_unicode_to_glyph_func_t. + * + * Note: While cairo does not impose any limitation on glyph indices, + * some applications may assume that a glyph index fits in a 16-bit + * unsigned integer. As such, it is advised that user-fonts keep their + * glyphs in the 0 to 65535 range. Furthermore, some applications may + * assume that glyph 0 is a special glyph-not-found glyph. User-fonts + * are advised to use glyph 0 for such purposes and do not use that + * glyph value for other purposes. + * + * Returns: %CAIRO_STATUS_SUCCESS upon success, + * %CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED if fallback options should be tried, + * or %CAIRO_STATUS_USER_FONT_ERROR or any other error status on error. + * + * Since: 1.8 + **/ +typedef cairo_status_t (*cairo_user_scaled_font_text_to_glyphs_func_t) (cairo_scaled_font_t *scaled_font, + const char *utf8, + int utf8_len, + cairo_glyph_t **glyphs, + int *num_glyphs, + cairo_text_cluster_t **clusters, + int *num_clusters, + cairo_text_cluster_flags_t *cluster_flags); + +/** + * cairo_user_scaled_font_unicode_to_glyph_func_t: + * @scaled_font: the scaled-font being created + * @unicode: input unicode character code-point + * @glyph_index: output glyph index + * + * #cairo_user_scaled_font_unicode_to_glyph_func_t is the type of function which + * is called to convert an input Unicode character to a single glyph. + * This is used by the cairo_show_text() operation. + * + * This callback is used to provide the same functionality as the + * text_to_glyphs callback does (see #cairo_user_scaled_font_text_to_glyphs_func_t) + * but has much less control on the output, + * in exchange for increased ease of use. The inherent assumption to using + * this callback is that each character maps to one glyph, and that the + * mapping is context independent. It also assumes that glyphs are positioned + * according to their advance width. These mean no ligatures, kerning, or + * complex scripts can be implemented using this callback. + * + * The callback is optional, and only used if text_to_glyphs callback is not + * set or fails to return glyphs. If this callback is not set or if it returns + * %CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED, an identity mapping from Unicode + * code-points to glyph indices is assumed. + * + * Note: While cairo does not impose any limitation on glyph indices, + * some applications may assume that a glyph index fits in a 16-bit + * unsigned integer. As such, it is advised that user-fonts keep their + * glyphs in the 0 to 65535 range. Furthermore, some applications may + * assume that glyph 0 is a special glyph-not-found glyph. User-fonts + * are advised to use glyph 0 for such purposes and do not use that + * glyph value for other purposes. + * + * Returns: %CAIRO_STATUS_SUCCESS upon success, + * %CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED if fallback options should be tried, + * or %CAIRO_STATUS_USER_FONT_ERROR or any other error status on error. + * + * Since: 1.8 + **/ +typedef cairo_status_t (*cairo_user_scaled_font_unicode_to_glyph_func_t) (cairo_scaled_font_t *scaled_font, + unsigned long unicode, + unsigned long *glyph_index); + +/* User-font method setters */ + +cairo_public void +cairo_user_font_face_set_init_func (cairo_font_face_t *font_face, + cairo_user_scaled_font_init_func_t init_func); + +cairo_public void +cairo_user_font_face_set_render_glyph_func (cairo_font_face_t *font_face, + cairo_user_scaled_font_render_glyph_func_t render_glyph_func); + +cairo_public void +cairo_user_font_face_set_render_color_glyph_func (cairo_font_face_t *font_face, + cairo_user_scaled_font_render_glyph_func_t render_glyph_func); + +cairo_public void +cairo_user_font_face_set_text_to_glyphs_func (cairo_font_face_t *font_face, + cairo_user_scaled_font_text_to_glyphs_func_t text_to_glyphs_func); + +cairo_public void +cairo_user_font_face_set_unicode_to_glyph_func (cairo_font_face_t *font_face, + cairo_user_scaled_font_unicode_to_glyph_func_t unicode_to_glyph_func); + +/* User-font method getters */ + +cairo_public cairo_user_scaled_font_init_func_t +cairo_user_font_face_get_init_func (cairo_font_face_t *font_face); + +cairo_public cairo_user_scaled_font_render_glyph_func_t +cairo_user_font_face_get_render_glyph_func (cairo_font_face_t *font_face); + +cairo_public cairo_user_scaled_font_render_glyph_func_t +cairo_user_font_face_get_render_color_glyph_func (cairo_font_face_t *font_face); + +cairo_public cairo_user_scaled_font_text_to_glyphs_func_t +cairo_user_font_face_get_text_to_glyphs_func (cairo_font_face_t *font_face); + +cairo_public cairo_user_scaled_font_unicode_to_glyph_func_t +cairo_user_font_face_get_unicode_to_glyph_func (cairo_font_face_t *font_face); + +cairo_public cairo_pattern_t * +cairo_user_scaled_font_get_foreground_marker (cairo_scaled_font_t *scaled_font); + +cairo_public cairo_pattern_t * +cairo_user_scaled_font_get_foreground_source (cairo_scaled_font_t *scaled_font); + +/* Query functions */ + +cairo_public cairo_operator_t +cairo_get_operator (cairo_t *cr); + +cairo_public cairo_pattern_t * +cairo_get_source (cairo_t *cr); + +cairo_public double +cairo_get_tolerance (cairo_t *cr); + +cairo_public cairo_antialias_t +cairo_get_antialias (cairo_t *cr); + +cairo_public cairo_bool_t +cairo_has_current_point (cairo_t *cr); + +cairo_public void +cairo_get_current_point (cairo_t *cr, double *x, double *y); + +cairo_public cairo_fill_rule_t +cairo_get_fill_rule (cairo_t *cr); + +cairo_public double +cairo_get_line_width (cairo_t *cr); + +cairo_public cairo_bool_t +cairo_get_hairline (cairo_t *cr); + +cairo_public cairo_line_cap_t +cairo_get_line_cap (cairo_t *cr); + +cairo_public cairo_line_join_t +cairo_get_line_join (cairo_t *cr); + +cairo_public double +cairo_get_miter_limit (cairo_t *cr); + +cairo_public int +cairo_get_dash_count (cairo_t *cr); + +cairo_public void +cairo_get_dash (cairo_t *cr, double *dashes, double *offset); + +cairo_public void +cairo_get_matrix (cairo_t *cr, cairo_matrix_t *matrix); + +cairo_public cairo_surface_t * +cairo_get_target (cairo_t *cr); + +cairo_public cairo_surface_t * +cairo_get_group_target (cairo_t *cr); + +/** + * cairo_path_data_type_t: + * @CAIRO_PATH_MOVE_TO: A move-to operation, since 1.0 + * @CAIRO_PATH_LINE_TO: A line-to operation, since 1.0 + * @CAIRO_PATH_CURVE_TO: A curve-to operation, since 1.0 + * @CAIRO_PATH_CLOSE_PATH: A close-path operation, since 1.0 + * + * #cairo_path_data_t is used to describe the type of one portion + * of a path when represented as a #cairo_path_t. + * See #cairo_path_data_t for details. + * + * Since: 1.0 + **/ +typedef enum _cairo_path_data_type { + CAIRO_PATH_MOVE_TO, + CAIRO_PATH_LINE_TO, + CAIRO_PATH_CURVE_TO, + CAIRO_PATH_CLOSE_PATH +} cairo_path_data_type_t; + +/** + * cairo_path_data_t: + * + * #cairo_path_data_t is used to represent the path data inside a + * #cairo_path_t. + * + * The data structure is designed to try to balance the demands of + * efficiency and ease-of-use. A path is represented as an array of + * #cairo_path_data_t, which is a union of headers and points. + * + * Each portion of the path is represented by one or more elements in + * the array, (one header followed by 0 or more points). The length + * value of the header is the number of array elements for the current + * portion including the header, (ie. length == 1 + # of points), and + * where the number of points for each element type is as follows: + * + * + * %CAIRO_PATH_MOVE_TO: 1 point + * %CAIRO_PATH_LINE_TO: 1 point + * %CAIRO_PATH_CURVE_TO: 3 points + * %CAIRO_PATH_CLOSE_PATH: 0 points + * + * + * The semantics and ordering of the coordinate values are consistent + * with cairo_move_to(), cairo_line_to(), cairo_curve_to(), and + * cairo_close_path(). + * + * Here is sample code for iterating through a #cairo_path_t: + * + * + * int i; + * cairo_path_t *path; + * cairo_path_data_t *data; + *   + * path = cairo_copy_path (cr); + *   + * for (i=0; i < path->num_data; i += path->data[i].header.length) { + * data = &path->data[i]; + * switch (data->header.type) { + * case CAIRO_PATH_MOVE_TO: + * do_move_to_things (data[1].point.x, data[1].point.y); + * break; + * case CAIRO_PATH_LINE_TO: + * do_line_to_things (data[1].point.x, data[1].point.y); + * break; + * case CAIRO_PATH_CURVE_TO: + * do_curve_to_things (data[1].point.x, data[1].point.y, + * data[2].point.x, data[2].point.y, + * data[3].point.x, data[3].point.y); + * break; + * case CAIRO_PATH_CLOSE_PATH: + * do_close_path_things (); + * break; + * } + * } + * cairo_path_destroy (path); + * + * + * As of cairo 1.4, cairo does not mind if there are more elements in + * a portion of the path than needed. Such elements can be used by + * users of the cairo API to hold extra values in the path data + * structure. For this reason, it is recommended that applications + * always use data->header.length to + * iterate over the path data, instead of hardcoding the number of + * elements for each element type. + * + * Since: 1.0 + **/ +typedef union _cairo_path_data_t cairo_path_data_t; +union _cairo_path_data_t { + struct { + cairo_path_data_type_t type; + int length; + } header; + struct { + double x, y; + } point; +}; + +/** + * cairo_path_t: + * @status: the current error status + * @data: the elements in the path + * @num_data: the number of elements in the data array + * + * A data structure for holding a path. This data structure serves as + * the return value for cairo_copy_path() and + * cairo_copy_path_flat() as well the input value for + * cairo_append_path(). + * + * See #cairo_path_data_t for hints on how to iterate over the + * actual data within the path. + * + * The num_data member gives the number of elements in the data + * array. This number is larger than the number of independent path + * portions (defined in #cairo_path_data_type_t), since the data + * includes both headers and coordinates for each portion. + * + * Since: 1.0 + **/ +typedef struct cairo_path { + cairo_status_t status; + cairo_path_data_t *data; + int num_data; +} cairo_path_t; + +cairo_public cairo_path_t * +cairo_copy_path (cairo_t *cr); + +cairo_public cairo_path_t * +cairo_copy_path_flat (cairo_t *cr); + +cairo_public void +cairo_append_path (cairo_t *cr, + const cairo_path_t *path); + +cairo_public void +cairo_path_destroy (cairo_path_t *path); + +/* Error status queries */ + +cairo_public cairo_status_t +cairo_status (cairo_t *cr); + +cairo_public const char * +cairo_status_to_string (cairo_status_t status); + +/* Backend device manipulation */ + +cairo_public cairo_device_t * +cairo_device_reference (cairo_device_t *device); + +/** + * cairo_device_type_t: + * @CAIRO_DEVICE_TYPE_DRM: The device is of type Direct Render Manager, since 1.10 + * @CAIRO_DEVICE_TYPE_GL: The device is of type OpenGL, since 1.10 + * @CAIRO_DEVICE_TYPE_SCRIPT: The device is of type script, since 1.10 + * @CAIRO_DEVICE_TYPE_XCB: The device is of type xcb, since 1.10 + * @CAIRO_DEVICE_TYPE_XLIB: The device is of type xlib, since 1.10 + * @CAIRO_DEVICE_TYPE_XML: The device is of type XML, since 1.10 + * @CAIRO_DEVICE_TYPE_COGL: The device is of type cogl, since 1.12 + * @CAIRO_DEVICE_TYPE_WIN32: The device is of type win32, since 1.12 + * @CAIRO_DEVICE_TYPE_INVALID: The device is invalid, since 1.10 + * + * #cairo_device_type_t is used to describe the type of a given + * device. The devices types are also known as "backends" within cairo. + * + * The device type can be queried with cairo_device_get_type() + * + * The various #cairo_device_t functions can be used with devices of + * any type, but some backends also provide type-specific functions + * that must only be called with a device of the appropriate + * type. These functions have names that begin with + * cairo_type_device such as + * cairo_xcb_device_debug_cap_xrender_version(). + * + * The behavior of calling a type-specific function with a device of + * the wrong type is undefined. + * + * New entries may be added in future versions. + * + * Since: 1.10 + **/ +typedef enum _cairo_device_type { + CAIRO_DEVICE_TYPE_DRM, + CAIRO_DEVICE_TYPE_GL, + CAIRO_DEVICE_TYPE_SCRIPT, + CAIRO_DEVICE_TYPE_XCB, + CAIRO_DEVICE_TYPE_XLIB, + CAIRO_DEVICE_TYPE_XML, + CAIRO_DEVICE_TYPE_COGL, + CAIRO_DEVICE_TYPE_WIN32, + + CAIRO_DEVICE_TYPE_INVALID = -1 +} cairo_device_type_t; + +cairo_public cairo_device_type_t +cairo_device_get_type (cairo_device_t *device); + +cairo_public cairo_status_t +cairo_device_status (cairo_device_t *device); + +cairo_public cairo_status_t +cairo_device_acquire (cairo_device_t *device); + +cairo_public void +cairo_device_release (cairo_device_t *device); + +cairo_public void +cairo_device_flush (cairo_device_t *device); + +cairo_public void +cairo_device_finish (cairo_device_t *device); + +cairo_public void +cairo_device_destroy (cairo_device_t *device); + +cairo_public unsigned int +cairo_device_get_reference_count (cairo_device_t *device); + +cairo_public void * +cairo_device_get_user_data (cairo_device_t *device, + const cairo_user_data_key_t *key); + +cairo_public cairo_status_t +cairo_device_set_user_data (cairo_device_t *device, + const cairo_user_data_key_t *key, + void *user_data, + cairo_destroy_func_t destroy); + + +/* Surface manipulation */ + +cairo_public cairo_surface_t * +cairo_surface_create_similar (cairo_surface_t *other, + cairo_content_t content, + int width, + int height); + +cairo_public cairo_surface_t * +cairo_surface_create_similar_image (cairo_surface_t *other, + cairo_format_t format, + int width, + int height); + +cairo_public cairo_surface_t * +cairo_surface_map_to_image (cairo_surface_t *surface, + const cairo_rectangle_int_t *extents); + +cairo_public void +cairo_surface_unmap_image (cairo_surface_t *surface, + cairo_surface_t *image); + +cairo_public cairo_surface_t * +cairo_surface_create_for_rectangle (cairo_surface_t *target, + double x, + double y, + double width, + double height); + +/** + * cairo_surface_observer_mode_t: + * @CAIRO_SURFACE_OBSERVER_NORMAL: no recording is done + * @CAIRO_SURFACE_OBSERVER_RECORD_OPERATIONS: operations are recorded + * + * Whether operations should be recorded. + * + * Since: 1.12 + **/ +typedef enum { + CAIRO_SURFACE_OBSERVER_NORMAL = 0, + CAIRO_SURFACE_OBSERVER_RECORD_OPERATIONS = 0x1 +} cairo_surface_observer_mode_t; + +cairo_public cairo_surface_t * +cairo_surface_create_observer (cairo_surface_t *target, + cairo_surface_observer_mode_t mode); + +/** + * cairo_surface_observer_callback_t: + * @observer: the #cairo_surface_observer_t + * @target: the observed surface + * @data: closure used when adding the callback + * + * A generic callback function for surface operations. + * + * Since: 1.12 + **/ +typedef void (*cairo_surface_observer_callback_t) (cairo_surface_t *observer, + cairo_surface_t *target, + void *data); + +cairo_public cairo_status_t +cairo_surface_observer_add_paint_callback (cairo_surface_t *abstract_surface, + cairo_surface_observer_callback_t func, + void *data); + +cairo_public cairo_status_t +cairo_surface_observer_add_mask_callback (cairo_surface_t *abstract_surface, + cairo_surface_observer_callback_t func, + void *data); + +cairo_public cairo_status_t +cairo_surface_observer_add_fill_callback (cairo_surface_t *abstract_surface, + cairo_surface_observer_callback_t func, + void *data); + +cairo_public cairo_status_t +cairo_surface_observer_add_stroke_callback (cairo_surface_t *abstract_surface, + cairo_surface_observer_callback_t func, + void *data); + +cairo_public cairo_status_t +cairo_surface_observer_add_glyphs_callback (cairo_surface_t *abstract_surface, + cairo_surface_observer_callback_t func, + void *data); + +cairo_public cairo_status_t +cairo_surface_observer_add_flush_callback (cairo_surface_t *abstract_surface, + cairo_surface_observer_callback_t func, + void *data); + +cairo_public cairo_status_t +cairo_surface_observer_add_finish_callback (cairo_surface_t *abstract_surface, + cairo_surface_observer_callback_t func, + void *data); + +cairo_public cairo_status_t +cairo_surface_observer_print (cairo_surface_t *abstract_surface, + cairo_write_func_t write_func, + void *closure); +cairo_public double +cairo_surface_observer_elapsed (cairo_surface_t *abstract_surface); + +cairo_public cairo_status_t +cairo_device_observer_print (cairo_device_t *abstract_device, + cairo_write_func_t write_func, + void *closure); + +cairo_public double +cairo_device_observer_elapsed (cairo_device_t *abstract_device); + +cairo_public double +cairo_device_observer_paint_elapsed (cairo_device_t *abstract_device); + +cairo_public double +cairo_device_observer_mask_elapsed (cairo_device_t *abstract_device); + +cairo_public double +cairo_device_observer_fill_elapsed (cairo_device_t *abstract_device); + +cairo_public double +cairo_device_observer_stroke_elapsed (cairo_device_t *abstract_device); + +cairo_public double +cairo_device_observer_glyphs_elapsed (cairo_device_t *abstract_device); + +cairo_public cairo_surface_t * +cairo_surface_reference (cairo_surface_t *surface); + +cairo_public void +cairo_surface_finish (cairo_surface_t *surface); + +cairo_public void +cairo_surface_destroy (cairo_surface_t *surface); + +cairo_public cairo_device_t * +cairo_surface_get_device (cairo_surface_t *surface); + +cairo_public unsigned int +cairo_surface_get_reference_count (cairo_surface_t *surface); + +cairo_public cairo_status_t +cairo_surface_status (cairo_surface_t *surface); + +/** + * cairo_surface_type_t: + * @CAIRO_SURFACE_TYPE_IMAGE: The surface is of type image, since 1.2 + * @CAIRO_SURFACE_TYPE_PDF: The surface is of type pdf, since 1.2 + * @CAIRO_SURFACE_TYPE_PS: The surface is of type ps, since 1.2 + * @CAIRO_SURFACE_TYPE_XLIB: The surface is of type xlib, since 1.2 + * @CAIRO_SURFACE_TYPE_XCB: The surface is of type xcb, since 1.2 + * @CAIRO_SURFACE_TYPE_GLITZ: The surface is of type glitz, since 1.2, deprecated 1.18 + * (glitz support have been removed, this surface type will never be set by cairo) + * @CAIRO_SURFACE_TYPE_QUARTZ: The surface is of type quartz, since 1.2 + * @CAIRO_SURFACE_TYPE_WIN32: The surface is of type win32, since 1.2 + * @CAIRO_SURFACE_TYPE_BEOS: The surface is of type beos, since 1.2, deprecated 1.18 + * (beos support have been removed, this surface type will never be set by cairo) + * @CAIRO_SURFACE_TYPE_DIRECTFB: The surface is of type directfb, since 1.2, deprecated 1.18 + * (directfb support have been removed, this surface type will never be set by cairo) + * @CAIRO_SURFACE_TYPE_SVG: The surface is of type svg, since 1.2 + * @CAIRO_SURFACE_TYPE_OS2: The surface is of type os2, since 1.4, deprecated 1.18 + * (os2 support have been removed, this surface type will never be set by cairo) + * @CAIRO_SURFACE_TYPE_WIN32_PRINTING: The surface is a win32 printing surface, since 1.6 + * @CAIRO_SURFACE_TYPE_QUARTZ_IMAGE: The surface is of type quartz_image, since 1.6 + * @CAIRO_SURFACE_TYPE_SCRIPT: The surface is of type script, since 1.10 + * @CAIRO_SURFACE_TYPE_QT: The surface is of type Qt, since 1.10, deprecated 1.18 + * (Ot support have been removed, this surface type will never be set by cairo) + * @CAIRO_SURFACE_TYPE_RECORDING: The surface is of type recording, since 1.10 + * @CAIRO_SURFACE_TYPE_VG: The surface is a OpenVG surface, since 1.10, deprecated 1.18 + * (OpenVG support have been removed, this surface type will never be set by cairo) + * @CAIRO_SURFACE_TYPE_GL: The surface is of type OpenGL, since 1.10, deprecated 1.18 + * (OpenGL support have been removed, this surface type will never be set by cairo) + * @CAIRO_SURFACE_TYPE_DRM: The surface is of type Direct Render Manager, since 1.10, deprecated 1.18 + * (DRM support have been removed, this surface type will never be set by cairo) + * @CAIRO_SURFACE_TYPE_TEE: The surface is of type 'tee' (a multiplexing surface), since 1.10 + * @CAIRO_SURFACE_TYPE_XML: The surface is of type XML (for debugging), since 1.10 + * @CAIRO_SURFACE_TYPE_SKIA: The surface is of type Skia, since 1.10, deprecated 1.18 + * (Skia support have been removed, this surface type will never be set by cairo) + * @CAIRO_SURFACE_TYPE_SUBSURFACE: The surface is a subsurface created with + * cairo_surface_create_for_rectangle(), since 1.10 + * @CAIRO_SURFACE_TYPE_COGL: This surface is of type Cogl, since 1.12, deprecated 1.18 + * (Cogl support have been removed, this surface type will never be set by cairo) + * + * #cairo_surface_type_t is used to describe the type of a given + * surface. The surface types are also known as "backends" or "surface + * backends" within cairo. + * + * The type of a surface is determined by the function used to create + * it, which will generally be of the form + * cairo_type_surface_create(), + * (though see cairo_surface_create_similar() as well). + * + * The surface type can be queried with cairo_surface_get_type() + * + * The various #cairo_surface_t functions can be used with surfaces of + * any type, but some backends also provide type-specific functions + * that must only be called with a surface of the appropriate + * type. These functions have names that begin with + * cairo_type_surface such as cairo_image_surface_get_width(). + * + * The behavior of calling a type-specific function with a surface of + * the wrong type is undefined. + * + * New entries may be added in future versions. + * + * Since: 1.2 + **/ +typedef enum _cairo_surface_type { + CAIRO_SURFACE_TYPE_IMAGE, + CAIRO_SURFACE_TYPE_PDF, + CAIRO_SURFACE_TYPE_PS, + CAIRO_SURFACE_TYPE_XLIB, + CAIRO_SURFACE_TYPE_XCB, + CAIRO_SURFACE_TYPE_GLITZ, + CAIRO_SURFACE_TYPE_QUARTZ, + CAIRO_SURFACE_TYPE_WIN32, + CAIRO_SURFACE_TYPE_BEOS, + CAIRO_SURFACE_TYPE_DIRECTFB, + CAIRO_SURFACE_TYPE_SVG, + CAIRO_SURFACE_TYPE_OS2, + CAIRO_SURFACE_TYPE_WIN32_PRINTING, + CAIRO_SURFACE_TYPE_QUARTZ_IMAGE, + CAIRO_SURFACE_TYPE_SCRIPT, + CAIRO_SURFACE_TYPE_QT, + CAIRO_SURFACE_TYPE_RECORDING, + CAIRO_SURFACE_TYPE_VG, + CAIRO_SURFACE_TYPE_GL, + CAIRO_SURFACE_TYPE_DRM, + CAIRO_SURFACE_TYPE_TEE, + CAIRO_SURFACE_TYPE_XML, + CAIRO_SURFACE_TYPE_SKIA, + CAIRO_SURFACE_TYPE_SUBSURFACE, + CAIRO_SURFACE_TYPE_COGL +} cairo_surface_type_t; + +cairo_public cairo_surface_type_t +cairo_surface_get_type (cairo_surface_t *surface); + +cairo_public cairo_content_t +cairo_surface_get_content (cairo_surface_t *surface); + +#if CAIRO_HAS_PNG_FUNCTIONS + +cairo_public cairo_status_t +cairo_surface_write_to_png (cairo_surface_t *surface, + const char *filename); + +cairo_public cairo_status_t +cairo_surface_write_to_png_stream (cairo_surface_t *surface, + cairo_write_func_t write_func, + void *closure); + +#endif + +cairo_public void * +cairo_surface_get_user_data (cairo_surface_t *surface, + const cairo_user_data_key_t *key); + +cairo_public cairo_status_t +cairo_surface_set_user_data (cairo_surface_t *surface, + const cairo_user_data_key_t *key, + void *user_data, + cairo_destroy_func_t destroy); + +#define CAIRO_MIME_TYPE_JPEG "image/jpeg" +#define CAIRO_MIME_TYPE_PNG "image/png" +#define CAIRO_MIME_TYPE_JP2 "image/jp2" +#define CAIRO_MIME_TYPE_URI "text/x-uri" +#define CAIRO_MIME_TYPE_UNIQUE_ID "application/x-cairo.uuid" +#define CAIRO_MIME_TYPE_JBIG2 "application/x-cairo.jbig2" +#define CAIRO_MIME_TYPE_JBIG2_GLOBAL "application/x-cairo.jbig2-global" +#define CAIRO_MIME_TYPE_JBIG2_GLOBAL_ID "application/x-cairo.jbig2-global-id" +#define CAIRO_MIME_TYPE_CCITT_FAX "image/g3fax" +#define CAIRO_MIME_TYPE_CCITT_FAX_PARAMS "application/x-cairo.ccitt.params" +#define CAIRO_MIME_TYPE_EPS "application/postscript" +#define CAIRO_MIME_TYPE_EPS_PARAMS "application/x-cairo.eps.params" + +cairo_public void +cairo_surface_get_mime_data (cairo_surface_t *surface, + const char *mime_type, + const unsigned char **data, + unsigned long *length); + +cairo_public cairo_status_t +cairo_surface_set_mime_data (cairo_surface_t *surface, + const char *mime_type, + const unsigned char *data, + unsigned long length, + cairo_destroy_func_t destroy, + void *closure); + +cairo_public cairo_bool_t +cairo_surface_supports_mime_type (cairo_surface_t *surface, + const char *mime_type); + +cairo_public void +cairo_surface_get_font_options (cairo_surface_t *surface, + cairo_font_options_t *options); + +cairo_public void +cairo_surface_flush (cairo_surface_t *surface); + +cairo_public void +cairo_surface_mark_dirty (cairo_surface_t *surface); + +cairo_public void +cairo_surface_mark_dirty_rectangle (cairo_surface_t *surface, + int x, + int y, + int width, + int height); + +cairo_public void +cairo_surface_set_device_scale (cairo_surface_t *surface, + double x_scale, + double y_scale); + +cairo_public void +cairo_surface_get_device_scale (cairo_surface_t *surface, + double *x_scale, + double *y_scale); + +cairo_public void +cairo_surface_set_device_offset (cairo_surface_t *surface, + double x_offset, + double y_offset); + +cairo_public void +cairo_surface_get_device_offset (cairo_surface_t *surface, + double *x_offset, + double *y_offset); + +cairo_public void +cairo_surface_set_fallback_resolution (cairo_surface_t *surface, + double x_pixels_per_inch, + double y_pixels_per_inch); + +cairo_public void +cairo_surface_get_fallback_resolution (cairo_surface_t *surface, + double *x_pixels_per_inch, + double *y_pixels_per_inch); + +cairo_public void +cairo_surface_copy_page (cairo_surface_t *surface); + +cairo_public void +cairo_surface_show_page (cairo_surface_t *surface); + +cairo_public cairo_bool_t +cairo_surface_has_show_text_glyphs (cairo_surface_t *surface); + +/* Image-surface functions */ + +cairo_public cairo_surface_t * +cairo_image_surface_create (cairo_format_t format, + int width, + int height); + +cairo_public int +cairo_format_stride_for_width (cairo_format_t format, + int width); + +cairo_public cairo_surface_t * +cairo_image_surface_create_for_data (unsigned char *data, + cairo_format_t format, + int width, + int height, + int stride); + +cairo_public unsigned char * +cairo_image_surface_get_data (cairo_surface_t *surface); + +cairo_public cairo_format_t +cairo_image_surface_get_format (cairo_surface_t *surface); + +cairo_public int +cairo_image_surface_get_width (cairo_surface_t *surface); + +cairo_public int +cairo_image_surface_get_height (cairo_surface_t *surface); + +cairo_public int +cairo_image_surface_get_stride (cairo_surface_t *surface); + +#if CAIRO_HAS_PNG_FUNCTIONS + +cairo_public cairo_surface_t * +cairo_image_surface_create_from_png (const char *filename); + +cairo_public cairo_surface_t * +cairo_image_surface_create_from_png_stream (cairo_read_func_t read_func, + void *closure); + +#endif + +/* Recording-surface functions */ + +cairo_public cairo_surface_t * +cairo_recording_surface_create (cairo_content_t content, + const cairo_rectangle_t *extents); + +cairo_public void +cairo_recording_surface_ink_extents (cairo_surface_t *surface, + double *x0, + double *y0, + double *width, + double *height); + +cairo_public cairo_bool_t +cairo_recording_surface_get_extents (cairo_surface_t *surface, + cairo_rectangle_t *extents); + +/* raster-source pattern (callback) functions */ + +/** + * cairo_raster_source_acquire_func_t: + * @pattern: the pattern being rendered from + * @callback_data: the user data supplied during creation + * @target: the rendering target surface + * @extents: rectangular region of interest in pixels in sample space + * + * #cairo_raster_source_acquire_func_t is the type of function which is + * called when a pattern is being rendered from. It should create a surface + * that provides the pixel data for the region of interest as defined by + * extents, though the surface itself does not have to be limited to that + * area. For convenience the surface should probably be of image type, + * created with cairo_surface_create_similar_image() for the target (which + * enables the number of copies to be reduced during transfer to the + * device). Another option, might be to return a similar surface to the + * target for explicit handling by the application of a set of cached sources + * on the device. The region of sample data provided should be defined using + * cairo_surface_set_device_offset() to specify the top-left corner of the + * sample data (along with width and height of the surface). + * + * Returns: a #cairo_surface_t + * + * Since: 1.12 + **/ +typedef cairo_surface_t * +(*cairo_raster_source_acquire_func_t) (cairo_pattern_t *pattern, + void *callback_data, + cairo_surface_t *target, + const cairo_rectangle_int_t *extents); + +/** + * cairo_raster_source_release_func_t: + * @pattern: the pattern being rendered from + * @callback_data: the user data supplied during creation + * @surface: the surface created during acquire + * + * #cairo_raster_source_release_func_t is the type of function which is + * called when the pixel data is no longer being access by the pattern + * for the rendering operation. Typically this function will simply + * destroy the surface created during acquire. + * + * Since: 1.12 + **/ +typedef void +(*cairo_raster_source_release_func_t) (cairo_pattern_t *pattern, + void *callback_data, + cairo_surface_t *surface); + +/** + * cairo_raster_source_snapshot_func_t: + * @pattern: the pattern being rendered from + * @callback_data: the user data supplied during creation + * + * #cairo_raster_source_snapshot_func_t is the type of function which is + * called when the pixel data needs to be preserved for later use + * during printing. This pattern will be accessed again later, and it + * is expected to provide the pixel data that was current at the time + * of snapshotting. + * + * Return value: CAIRO_STATUS_SUCCESS on success, or one of the + * #cairo_status_t error codes for failure. + * + * Since: 1.12 + **/ +typedef cairo_status_t +(*cairo_raster_source_snapshot_func_t) (cairo_pattern_t *pattern, + void *callback_data); + +/** + * cairo_raster_source_copy_func_t: + * @pattern: the #cairo_pattern_t that was copied to + * @callback_data: the user data supplied during creation + * @other: the #cairo_pattern_t being used as the source for the copy + * + * #cairo_raster_source_copy_func_t is the type of function which is + * called when the pattern gets copied as a normal part of rendering. + * + * Return value: CAIRO_STATUS_SUCCESS on success, or one of the + * #cairo_status_t error codes for failure. + * + * Since: 1.12 + **/ +typedef cairo_status_t +(*cairo_raster_source_copy_func_t) (cairo_pattern_t *pattern, + void *callback_data, + const cairo_pattern_t *other); + +/** + * cairo_raster_source_finish_func_t: + * @pattern: the pattern being rendered from + * @callback_data: the user data supplied during creation + * + * #cairo_raster_source_finish_func_t is the type of function which is + * called when the pattern (or a copy thereof) is no longer required. + * + * Since: 1.12 + **/ +typedef void +(*cairo_raster_source_finish_func_t) (cairo_pattern_t *pattern, + void *callback_data); + +cairo_public cairo_pattern_t * +cairo_pattern_create_raster_source (void *user_data, + cairo_content_t content, + int width, int height); + +cairo_public void +cairo_raster_source_pattern_set_callback_data (cairo_pattern_t *pattern, + void *data); + +cairo_public void * +cairo_raster_source_pattern_get_callback_data (cairo_pattern_t *pattern); + +cairo_public void +cairo_raster_source_pattern_set_acquire (cairo_pattern_t *pattern, + cairo_raster_source_acquire_func_t acquire, + cairo_raster_source_release_func_t release); + +cairo_public void +cairo_raster_source_pattern_get_acquire (cairo_pattern_t *pattern, + cairo_raster_source_acquire_func_t *acquire, + cairo_raster_source_release_func_t *release); +cairo_public void +cairo_raster_source_pattern_set_snapshot (cairo_pattern_t *pattern, + cairo_raster_source_snapshot_func_t snapshot); + +cairo_public cairo_raster_source_snapshot_func_t +cairo_raster_source_pattern_get_snapshot (cairo_pattern_t *pattern); + +cairo_public void +cairo_raster_source_pattern_set_copy (cairo_pattern_t *pattern, + cairo_raster_source_copy_func_t copy); + +cairo_public cairo_raster_source_copy_func_t +cairo_raster_source_pattern_get_copy (cairo_pattern_t *pattern); + +cairo_public void +cairo_raster_source_pattern_set_finish (cairo_pattern_t *pattern, + cairo_raster_source_finish_func_t finish); + +cairo_public cairo_raster_source_finish_func_t +cairo_raster_source_pattern_get_finish (cairo_pattern_t *pattern); + +/* Pattern creation functions */ + +cairo_public cairo_pattern_t * +cairo_pattern_create_rgb (double red, double green, double blue); + +cairo_public cairo_pattern_t * +cairo_pattern_create_rgba (double red, double green, double blue, + double alpha); + +cairo_public cairo_pattern_t * +cairo_pattern_create_for_surface (cairo_surface_t *surface); + +cairo_public cairo_pattern_t * +cairo_pattern_create_linear (double x0, double y0, + double x1, double y1); + +cairo_public cairo_pattern_t * +cairo_pattern_create_radial (double cx0, double cy0, double radius0, + double cx1, double cy1, double radius1); + +cairo_public cairo_pattern_t * +cairo_pattern_create_mesh (void); + +cairo_public cairo_pattern_t * +cairo_pattern_reference (cairo_pattern_t *pattern); + +cairo_public void +cairo_pattern_destroy (cairo_pattern_t *pattern); + +cairo_public unsigned int +cairo_pattern_get_reference_count (cairo_pattern_t *pattern); + +cairo_public cairo_status_t +cairo_pattern_status (cairo_pattern_t *pattern); + +cairo_public void * +cairo_pattern_get_user_data (cairo_pattern_t *pattern, + const cairo_user_data_key_t *key); + +cairo_public cairo_status_t +cairo_pattern_set_user_data (cairo_pattern_t *pattern, + const cairo_user_data_key_t *key, + void *user_data, + cairo_destroy_func_t destroy); + +/** + * cairo_pattern_type_t: + * @CAIRO_PATTERN_TYPE_SOLID: The pattern is a solid (uniform) + * color. It may be opaque or translucent, since 1.2. + * @CAIRO_PATTERN_TYPE_SURFACE: The pattern is a based on a surface (an image), since 1.2. + * @CAIRO_PATTERN_TYPE_LINEAR: The pattern is a linear gradient, since 1.2. + * @CAIRO_PATTERN_TYPE_RADIAL: The pattern is a radial gradient, since 1.2. + * @CAIRO_PATTERN_TYPE_MESH: The pattern is a mesh, since 1.12. + * @CAIRO_PATTERN_TYPE_RASTER_SOURCE: The pattern is a user pattern providing raster data, since 1.12. + * + * #cairo_pattern_type_t is used to describe the type of a given pattern. + * + * The type of a pattern is determined by the function used to create + * it. The cairo_pattern_create_rgb() and cairo_pattern_create_rgba() + * functions create SOLID patterns. The remaining + * cairo_pattern_create functions map to pattern types in obvious + * ways. + * + * The pattern type can be queried with cairo_pattern_get_type() + * + * Most #cairo_pattern_t functions can be called with a pattern of any + * type, (though trying to change the extend or filter for a solid + * pattern will have no effect). A notable exception is + * cairo_pattern_add_color_stop_rgb() and + * cairo_pattern_add_color_stop_rgba() which must only be called with + * gradient patterns (either LINEAR or RADIAL). Otherwise the pattern + * will be shutdown and put into an error state. + * + * New entries may be added in future versions. + * + * Since: 1.2 + **/ +typedef enum _cairo_pattern_type { + CAIRO_PATTERN_TYPE_SOLID, + CAIRO_PATTERN_TYPE_SURFACE, + CAIRO_PATTERN_TYPE_LINEAR, + CAIRO_PATTERN_TYPE_RADIAL, + CAIRO_PATTERN_TYPE_MESH, + CAIRO_PATTERN_TYPE_RASTER_SOURCE +} cairo_pattern_type_t; + +cairo_public cairo_pattern_type_t +cairo_pattern_get_type (cairo_pattern_t *pattern); + +cairo_public void +cairo_pattern_add_color_stop_rgb (cairo_pattern_t *pattern, + double offset, + double red, double green, double blue); + +cairo_public void +cairo_pattern_add_color_stop_rgba (cairo_pattern_t *pattern, + double offset, + double red, double green, double blue, + double alpha); + +cairo_public void +cairo_mesh_pattern_begin_patch (cairo_pattern_t *pattern); + +cairo_public void +cairo_mesh_pattern_end_patch (cairo_pattern_t *pattern); + +cairo_public void +cairo_mesh_pattern_curve_to (cairo_pattern_t *pattern, + double x1, double y1, + double x2, double y2, + double x3, double y3); + +cairo_public void +cairo_mesh_pattern_line_to (cairo_pattern_t *pattern, + double x, double y); + +cairo_public void +cairo_mesh_pattern_move_to (cairo_pattern_t *pattern, + double x, double y); + +cairo_public void +cairo_mesh_pattern_set_control_point (cairo_pattern_t *pattern, + unsigned int point_num, + double x, double y); + +cairo_public void +cairo_mesh_pattern_set_corner_color_rgb (cairo_pattern_t *pattern, + unsigned int corner_num, + double red, double green, double blue); + +cairo_public void +cairo_mesh_pattern_set_corner_color_rgba (cairo_pattern_t *pattern, + unsigned int corner_num, + double red, double green, double blue, + double alpha); + +cairo_public void +cairo_pattern_set_matrix (cairo_pattern_t *pattern, + const cairo_matrix_t *matrix); + +cairo_public void +cairo_pattern_get_matrix (cairo_pattern_t *pattern, + cairo_matrix_t *matrix); + +/** + * cairo_extend_t: + * @CAIRO_EXTEND_NONE: pixels outside of the source pattern + * are fully transparent (Since 1.0) + * @CAIRO_EXTEND_REPEAT: the pattern is tiled by repeating (Since 1.0) + * @CAIRO_EXTEND_REFLECT: the pattern is tiled by reflecting + * at the edges (Since 1.0; but only implemented for surface patterns since 1.6) + * @CAIRO_EXTEND_PAD: pixels outside of the pattern copy + * the closest pixel from the source (Since 1.2; but only + * implemented for surface patterns since 1.6) + * + * #cairo_extend_t is used to describe how pattern color/alpha will be + * determined for areas "outside" the pattern's natural area, (for + * example, outside the surface bounds or outside the gradient + * geometry). + * + * Mesh patterns are not affected by the extend mode. + * + * The default extend mode is %CAIRO_EXTEND_NONE for surface patterns + * and %CAIRO_EXTEND_PAD for gradient patterns. + * + * New entries may be added in future versions. + * + * Since: 1.0 + **/ +typedef enum _cairo_extend { + CAIRO_EXTEND_NONE, + CAIRO_EXTEND_REPEAT, + CAIRO_EXTEND_REFLECT, + CAIRO_EXTEND_PAD +} cairo_extend_t; + +cairo_public void +cairo_pattern_set_extend (cairo_pattern_t *pattern, cairo_extend_t extend); + +cairo_public cairo_extend_t +cairo_pattern_get_extend (cairo_pattern_t *pattern); + +/** + * cairo_filter_t: + * @CAIRO_FILTER_FAST: A high-performance filter, with quality similar + * to %CAIRO_FILTER_NEAREST (Since 1.0) + * @CAIRO_FILTER_GOOD: A reasonable-performance filter, with quality + * similar to %CAIRO_FILTER_BILINEAR (Since 1.0) + * @CAIRO_FILTER_BEST: The highest-quality available, performance may + * not be suitable for interactive use. (Since 1.0) + * @CAIRO_FILTER_NEAREST: Nearest-neighbor filtering (Since 1.0) + * @CAIRO_FILTER_BILINEAR: Linear interpolation in two dimensions (Since 1.0) + * @CAIRO_FILTER_GAUSSIAN: This filter value is currently + * unimplemented, and should not be used in current code. (Since 1.0) + * + * #cairo_filter_t is used to indicate what filtering should be + * applied when reading pixel values from patterns. See + * cairo_pattern_set_filter() for indicating the desired filter to be + * used with a particular pattern. + * + * Since: 1.0 + **/ +typedef enum _cairo_filter { + CAIRO_FILTER_FAST, + CAIRO_FILTER_GOOD, + CAIRO_FILTER_BEST, + CAIRO_FILTER_NEAREST, + CAIRO_FILTER_BILINEAR, + CAIRO_FILTER_GAUSSIAN +} cairo_filter_t; + +cairo_public void +cairo_pattern_set_filter (cairo_pattern_t *pattern, cairo_filter_t filter); + +cairo_public cairo_filter_t +cairo_pattern_get_filter (cairo_pattern_t *pattern); + +cairo_public cairo_status_t +cairo_pattern_get_rgba (cairo_pattern_t *pattern, + double *red, double *green, + double *blue, double *alpha); + +cairo_public cairo_status_t +cairo_pattern_get_surface (cairo_pattern_t *pattern, + cairo_surface_t **surface); + + +cairo_public cairo_status_t +cairo_pattern_get_color_stop_rgba (cairo_pattern_t *pattern, + int index, double *offset, + double *red, double *green, + double *blue, double *alpha); + +cairo_public cairo_status_t +cairo_pattern_get_color_stop_count (cairo_pattern_t *pattern, + int *count); + +cairo_public cairo_status_t +cairo_pattern_get_linear_points (cairo_pattern_t *pattern, + double *x0, double *y0, + double *x1, double *y1); + +cairo_public cairo_status_t +cairo_pattern_get_radial_circles (cairo_pattern_t *pattern, + double *x0, double *y0, double *r0, + double *x1, double *y1, double *r1); + +cairo_public cairo_status_t +cairo_mesh_pattern_get_patch_count (cairo_pattern_t *pattern, + unsigned int *count); + +cairo_public cairo_path_t * +cairo_mesh_pattern_get_path (cairo_pattern_t *pattern, + unsigned int patch_num); + +cairo_public cairo_status_t +cairo_mesh_pattern_get_corner_color_rgba (cairo_pattern_t *pattern, + unsigned int patch_num, + unsigned int corner_num, + double *red, double *green, + double *blue, double *alpha); + +cairo_public cairo_status_t +cairo_mesh_pattern_get_control_point (cairo_pattern_t *pattern, + unsigned int patch_num, + unsigned int point_num, + double *x, double *y); + +/* Matrix functions */ + +cairo_public void +cairo_matrix_init (cairo_matrix_t *matrix, + double xx, double yx, + double xy, double yy, + double x0, double y0); + +cairo_public void +cairo_matrix_init_identity (cairo_matrix_t *matrix); + +cairo_public void +cairo_matrix_init_translate (cairo_matrix_t *matrix, + double tx, double ty); + +cairo_public void +cairo_matrix_init_scale (cairo_matrix_t *matrix, + double sx, double sy); + +cairo_public void +cairo_matrix_init_rotate (cairo_matrix_t *matrix, + double radians); + +cairo_public void +cairo_matrix_translate (cairo_matrix_t *matrix, double tx, double ty); + +cairo_public void +cairo_matrix_scale (cairo_matrix_t *matrix, double sx, double sy); + +cairo_public void +cairo_matrix_rotate (cairo_matrix_t *matrix, double radians); + +cairo_public cairo_status_t +cairo_matrix_invert (cairo_matrix_t *matrix); + +cairo_public void +cairo_matrix_multiply (cairo_matrix_t *result, + const cairo_matrix_t *a, + const cairo_matrix_t *b); + +cairo_public void +cairo_matrix_transform_distance (const cairo_matrix_t *matrix, + double *dx, double *dy); + +cairo_public void +cairo_matrix_transform_point (const cairo_matrix_t *matrix, + double *x, double *y); + +/* Region functions */ + +/** + * cairo_region_t: + * + * A #cairo_region_t represents a set of integer-aligned rectangles. + * + * It allows set-theoretical operations like cairo_region_union() and + * cairo_region_intersect() to be performed on them. + * + * Memory management of #cairo_region_t is done with + * cairo_region_reference() and cairo_region_destroy(). + * + * Since: 1.10 + **/ +typedef struct _cairo_region cairo_region_t; + +/** + * cairo_region_overlap_t: + * @CAIRO_REGION_OVERLAP_IN: The contents are entirely inside the region. (Since 1.10) + * @CAIRO_REGION_OVERLAP_OUT: The contents are entirely outside the region. (Since 1.10) + * @CAIRO_REGION_OVERLAP_PART: The contents are partially inside and + * partially outside the region. (Since 1.10) + * + * Used as the return value for cairo_region_contains_rectangle(). + * + * Since: 1.10 + **/ +typedef enum _cairo_region_overlap { + CAIRO_REGION_OVERLAP_IN, /* completely inside region */ + CAIRO_REGION_OVERLAP_OUT, /* completely outside region */ + CAIRO_REGION_OVERLAP_PART /* partly inside region */ +} cairo_region_overlap_t; + +cairo_public cairo_region_t * +cairo_region_create (void); + +cairo_public cairo_region_t * +cairo_region_create_rectangle (const cairo_rectangle_int_t *rectangle); + +cairo_public cairo_region_t * +cairo_region_create_rectangles (const cairo_rectangle_int_t *rects, + int count); + +cairo_public cairo_region_t * +cairo_region_copy (const cairo_region_t *original); + +cairo_public cairo_region_t * +cairo_region_reference (cairo_region_t *region); + +cairo_public void +cairo_region_destroy (cairo_region_t *region); + +cairo_public cairo_bool_t +cairo_region_equal (const cairo_region_t *a, const cairo_region_t *b); + +cairo_public cairo_status_t +cairo_region_status (const cairo_region_t *region); + +cairo_public void +cairo_region_get_extents (const cairo_region_t *region, + cairo_rectangle_int_t *extents); + +cairo_public int +cairo_region_num_rectangles (const cairo_region_t *region); + +cairo_public void +cairo_region_get_rectangle (const cairo_region_t *region, + int nth, + cairo_rectangle_int_t *rectangle); + +cairo_public cairo_bool_t +cairo_region_is_empty (const cairo_region_t *region); + +cairo_public cairo_region_overlap_t +cairo_region_contains_rectangle (const cairo_region_t *region, + const cairo_rectangle_int_t *rectangle); + +cairo_public cairo_bool_t +cairo_region_contains_point (const cairo_region_t *region, int x, int y); + +cairo_public void +cairo_region_translate (cairo_region_t *region, int dx, int dy); + +cairo_public cairo_status_t +cairo_region_subtract (cairo_region_t *dst, const cairo_region_t *other); + +cairo_public cairo_status_t +cairo_region_subtract_rectangle (cairo_region_t *dst, + const cairo_rectangle_int_t *rectangle); + +cairo_public cairo_status_t +cairo_region_intersect (cairo_region_t *dst, const cairo_region_t *other); + +cairo_public cairo_status_t +cairo_region_intersect_rectangle (cairo_region_t *dst, + const cairo_rectangle_int_t *rectangle); + +cairo_public cairo_status_t +cairo_region_union (cairo_region_t *dst, const cairo_region_t *other); + +cairo_public cairo_status_t +cairo_region_union_rectangle (cairo_region_t *dst, + const cairo_rectangle_int_t *rectangle); + +cairo_public cairo_status_t +cairo_region_xor (cairo_region_t *dst, const cairo_region_t *other); + +cairo_public cairo_status_t +cairo_region_xor_rectangle (cairo_region_t *dst, + const cairo_rectangle_int_t *rectangle); + +/* Functions to be used while debugging (not intended for use in production code) */ +cairo_public void +cairo_debug_reset_static_data (void); + + +CAIRO_END_DECLS + +#endif /* CAIRO_H */ diff --git a/local/recipes/libs/cairo/source/src/cairoint.h b/local/recipes/libs/cairo/source/src/cairoint.h new file mode 100644 index 0000000000..be1a4ba2af --- /dev/null +++ b/local/recipes/libs/cairo/source/src/cairoint.h @@ -0,0 +1,2005 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + */ + +/* + * These definitions are solely for use by the implementation of cairo + * and constitute no kind of standard. If you need any of these + * functions, please drop me a note. Either the library needs new + * functionality, or there's a way to do what you need using the + * existing published interfaces. cworth@cworth.org + */ + +#ifndef _CAIROINT_H_ +#define _CAIROINT_H_ + +#include "config.h" + +#include +#include +#include +#include +#include + +#ifdef _MSC_VER +#define _USE_MATH_DEFINES +#endif +#include +#include +#include + +#include "cairo.h" +#include + +#include "cairo-compiler-private.h" +#include "cairo-error-private.h" + +#if CAIRO_HAS_PDF_SURFACE || \ + CAIRO_HAS_PS_SURFACE || \ + CAIRO_HAS_SCRIPT_SURFACE +#define CAIRO_HAS_DEFLATE_STREAM 1 +#endif + +#if CAIRO_HAS_PS_SURFACE || \ + CAIRO_HAS_PDF_SURFACE || \ + CAIRO_HAS_SVG_SURFACE || \ + CAIRO_HAS_WIN32_SURFACE +#define CAIRO_HAS_FONT_SUBSET 1 +#endif + +#if CAIRO_HAS_PS_SURFACE || \ + CAIRO_HAS_PDF_SURFACE || \ + CAIRO_HAS_FONT_SUBSET +#define CAIRO_HAS_PDF_OPERATORS 1 +#endif + +CAIRO_BEGIN_DECLS + +#undef MIN +#define MIN(a, b) ((a) < (b) ? (a) : (b)) + +#undef MAX +#define MAX(a, b) ((a) > (b) ? (a) : (b)) + +#if _XOPEN_SOURCE >= 600 || defined (_ISOC99_SOURCE) +#define ISFINITE(x) isfinite (x) +#else +#define ISFINITE(x) ((x) * (x) >= 0.) /* check for NaNs */ +#endif + +#ifndef FALSE +#define FALSE 0 +#endif + +#ifndef TRUE +#define TRUE 1 +#endif + +#ifndef M_PI +#define M_PI 3.14159265358979323846 +#endif + +#ifndef M_SQRT2 +#define M_SQRT2 1.41421356237309504880 +#endif + +#ifndef M_SQRT1_2 +#define M_SQRT1_2 0.707106781186547524400844362104849039 +#endif + +#undef ARRAY_LENGTH +#define ARRAY_LENGTH(__array) ((int) (sizeof (__array) / sizeof (__array[0]))) + +#undef STRINGIFY +#undef STRINGIFY_ARG +#define STRINGIFY(macro_or_string) STRINGIFY_ARG (macro_or_string) +#define STRINGIFY_ARG(contents) #contents + +#if defined (__GNUC__) +#define cairo_container_of(ptr, type, member) ({ \ + const __typeof__ (((type *) 0)->member) *mptr__ = (ptr); \ + (type *) ((char *) mptr__ - offsetof (type, member)); \ +}) +#else +#define cairo_container_of(ptr, type, member) \ + ((type *)((char *) (ptr) - (char *) &((type *)0)->member)) +#endif + + +#define ASSERT_NOT_REACHED \ +do { \ + assert (!"reached"); \ +} while (0) +#define COMPILE_TIME_ASSERT1(condition, line) \ + typedef int compile_time_assertion_at_line_##line##_failed [(condition)?1:-1] +#define COMPILE_TIME_ASSERT0(condition, line) COMPILE_TIME_ASSERT1(condition, line) +#define COMPILE_TIME_ASSERT(condition) COMPILE_TIME_ASSERT0(condition, __LINE__) + +#define CAIRO_ALPHA_IS_CLEAR(alpha) ((alpha) <= ((double)0x00ff / (double)0xffff)) +#define CAIRO_ALPHA_SHORT_IS_CLEAR(alpha) ((alpha) <= 0x00ff) + +#define CAIRO_ALPHA_IS_OPAQUE(alpha) ((alpha) >= ((double)0xff00 / (double)0xffff)) +#define CAIRO_ALPHA_SHORT_IS_OPAQUE(alpha) ((alpha) >= 0xff00) +#define CAIRO_ALPHA_IS_ZERO(alpha) ((alpha) <= 0.0) + +#define CAIRO_COLOR_IS_CLEAR(color) CAIRO_ALPHA_SHORT_IS_CLEAR ((color)->alpha_short) +#define CAIRO_COLOR_IS_OPAQUE(color) CAIRO_ALPHA_SHORT_IS_OPAQUE ((color)->alpha_short) + +/* Reverse the bits in a byte with 7 operations (no 64-bit): + * Devised by Sean Anderson, July 13, 2001. + * Source: http://graphics.stanford.edu/~seander/bithacks.html#ReverseByteWith32Bits + */ +#define CAIRO_BITSWAP8(c) ((((c) * 0x0802LU & 0x22110LU) | ((c) * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16) + +/* Return the number of 1 bits in mask. + * + * GCC 3.4 supports a "population count" builtin, which on many targets is + * implemented with a single instruction. There is a fallback definition + * in libgcc in case a target does not have one, which should be just as + * good as the open-coded solution below, (which is "HACKMEM 169"). + */ +static inline int cairo_const +_cairo_popcount (uint32_t mask) +{ +#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) + return __builtin_popcount (mask); +#else + register int y; + + y = (mask >> 1) &033333333333; + y = mask - y - ((y >>1) & 033333333333); + return (((y + (y >> 3)) & 030707070707) % 077); +#endif +} + +static cairo_always_inline cairo_bool_t +_cairo_is_little_endian (void) +{ + static const int i = 1; + return *((char *) &i) == 0x01; +} + +#ifdef WORDS_BIGENDIAN +#define CAIRO_BITSWAP8_IF_LITTLE_ENDIAN(c) (c) +#else +#define CAIRO_BITSWAP8_IF_LITTLE_ENDIAN(c) CAIRO_BITSWAP8(c) +#endif + +#ifdef WORDS_BIGENDIAN + +#define cpu_to_be16(v) (v) +#define be16_to_cpu(v) (v) +#define cpu_to_be32(v) (v) +#define be32_to_cpu(v) (v) + +#else + +static inline uint16_t cairo_const +cpu_to_be16(uint16_t v) +{ + return (v << 8) | (v >> 8); +} + +static inline uint16_t cairo_const +be16_to_cpu(uint16_t v) +{ + return cpu_to_be16 (v); +} + +static inline uint32_t cairo_const +cpu_to_be32(uint32_t v) +{ + return (v >> 24) | ((v >> 8) & 0xff00) | ((v << 8) & 0xff0000) | (v << 24); +} + +static inline uint32_t cairo_const +be32_to_cpu(uint32_t v) +{ + return cpu_to_be32 (v); +} + +#endif + +/* Unaligned big endian access + */ + +static inline uint16_t get_unaligned_be16 (const unsigned char *p) +{ + return p[0] << 8 | p[1]; +} + +static inline uint32_t get_unaligned_be32 (const unsigned char *p) +{ + return (uint32_t)p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3]; +} + +static inline void put_unaligned_be16 (uint16_t v, unsigned char *p) +{ + p[0] = (v >> 8) & 0xff; + p[1] = v & 0xff; +} + +static inline void put_unaligned_be32 (uint32_t v, unsigned char *p) +{ + p[0] = (v >> 24) & 0xff; + p[1] = (v >> 16) & 0xff; + p[2] = (v >> 8) & 0xff; + p[3] = v & 0xff; +} + +#include "cairo-ctype-inline.h" +#include "cairo-types-private.h" +#include "cairo-cache-private.h" +#include "cairo-reference-count-private.h" +#include "cairo-spans-private.h" +#include "cairo-surface-private.h" + +cairo_private void +_cairo_box_from_doubles (cairo_box_t *box, + double *x1, double *y1, + double *x2, double *y2); + +cairo_private void +_cairo_box_to_doubles (const cairo_box_t *box, + double *x1, double *y1, + double *x2, double *y2); + +cairo_private void +_cairo_box_from_rectangle (cairo_box_t *box, + const cairo_rectangle_int_t *rectangle); + +cairo_private void +_cairo_box_round_to_rectangle (const cairo_box_t *box, + cairo_rectangle_int_t *rectangle); + +cairo_private void +_cairo_box_add_curve_to (cairo_box_t *extents, + const cairo_point_t *a, + const cairo_point_t *b, + const cairo_point_t *c, + const cairo_point_t *d); + +cairo_private void +_cairo_boxes_get_extents (const cairo_box_t *boxes, + int num_boxes, + cairo_box_t *extents); + +cairo_private extern const cairo_rectangle_int_t _cairo_empty_rectangle; +cairo_private extern const cairo_rectangle_int_t _cairo_unbounded_rectangle; + +static inline void +_cairo_unbounded_rectangle_init (cairo_rectangle_int_t *rect) +{ + *rect = _cairo_unbounded_rectangle; +} + +cairo_private_no_warn cairo_bool_t +_cairo_rectangle_intersect (cairo_rectangle_int_t *dst, + const cairo_rectangle_int_t *src); + +static inline cairo_bool_t +_cairo_rectangle_intersects (const cairo_rectangle_int_t *dst, + const cairo_rectangle_int_t *src) +{ + return !(src->x >= dst->x + dst->width || + src->x + src->width <= dst->x || + src->y >= dst->y + dst->height || + src->y + src->height <= dst->y); +} + +static inline cairo_bool_t +_cairo_rectangle_contains_rectangle (const cairo_rectangle_int_t *a, + const cairo_rectangle_int_t *b) +{ + return (a->x <= b->x && + a->x + a->width >= b->x + b->width && + a->y <= b->y && + a->y + a->height >= b->y + b->height); +} + +cairo_private void +_cairo_rectangle_int_from_double (cairo_rectangle_int_t *recti, + const cairo_rectangle_t *rectf); + +/* Extends the dst rectangle to also contain src. + * If one of the rectangles is empty, the result is undefined + */ +cairo_private void +_cairo_rectangle_union (cairo_rectangle_int_t *dst, + const cairo_rectangle_int_t *src); + +cairo_private cairo_bool_t +_cairo_box_intersects_line_segment (const cairo_box_t *box, + cairo_line_t *line) cairo_pure; + +cairo_private cairo_bool_t +_cairo_spline_intersects (const cairo_point_t *a, + const cairo_point_t *b, + const cairo_point_t *c, + const cairo_point_t *d, + const cairo_box_t *box) cairo_pure; + +typedef struct { + const cairo_user_data_key_t *key; + void *user_data; + cairo_destroy_func_t destroy; +} cairo_user_data_slot_t; + +cairo_private void +_cairo_user_data_array_init (cairo_user_data_array_t *array); + +cairo_private void +_cairo_user_data_array_fini (cairo_user_data_array_t *array); + +cairo_private void * +_cairo_user_data_array_get_data (cairo_user_data_array_t *array, + const cairo_user_data_key_t *key); + +cairo_private cairo_status_t +_cairo_user_data_array_set_data (cairo_user_data_array_t *array, + const cairo_user_data_key_t *key, + void *user_data, + cairo_destroy_func_t destroy); + +cairo_private cairo_status_t +_cairo_user_data_array_copy (cairo_user_data_array_t *dst, + const cairo_user_data_array_t *src); + +cairo_private void +_cairo_user_data_array_foreach (cairo_user_data_array_t *array, + void (*func) (const void *key, + void *elt, + void *closure), + void *closure); + +#define _CAIRO_HASH_INIT_VALUE 5381 + +cairo_private uintptr_t +_cairo_hash_string (const char *c); + +cairo_private uintptr_t +_cairo_hash_bytes (uintptr_t hash, + const void *bytes, + unsigned int length); + +cairo_private uintptr_t +_cairo_hash_uintptr (uintptr_t hash, + uintptr_t u); + +/* We use bits 24-27 to store phases for subpixel positions */ +#define _cairo_scaled_glyph_index(g) ((unsigned long)((g)->hash_entry.hash & 0xffffff)) +#define _cairo_scaled_glyph_xphase(g) (int)(((g)->hash_entry.hash >> 24) & 3) +#define _cairo_scaled_glyph_yphase(g) (int)(((g)->hash_entry.hash >> 26) & 3) +#define _cairo_scaled_glyph_set_index(g, i) ((g)->hash_entry.hash = (i)) + +#include "cairo-scaled-font-private.h" + +struct _cairo_font_face { + /* hash_entry must be first */ + cairo_hash_entry_t hash_entry; + cairo_status_t status; + cairo_reference_count_t ref_count; + cairo_user_data_array_t user_data; + const cairo_font_face_backend_t *backend; +}; + +cairo_private void +_cairo_default_context_reset_static_data (void); + +cairo_private void +_cairo_toy_font_face_reset_static_data (void); + +cairo_private void +_cairo_ft_font_reset_static_data (void); + +cairo_private void +_cairo_win32_font_reset_static_data (void); + +/* the font backend interface */ + +struct _cairo_unscaled_font_backend { + cairo_bool_t (*destroy) (void *unscaled_font); +}; + +/* #cairo_toy_font_face_t - simple family/slant/weight font faces used for + * the built-in font API + */ + +typedef struct _cairo_toy_font_face { + cairo_font_face_t base; + const char *family; + cairo_bool_t owns_family; + cairo_font_slant_t slant; + cairo_font_weight_t weight; + + cairo_font_face_t *impl_face; /* The non-toy font face this actually uses */ +} cairo_toy_font_face_t; + +typedef enum _cairo_scaled_glyph_info { + CAIRO_SCALED_GLYPH_INFO_METRICS = (1 << 0), + CAIRO_SCALED_GLYPH_INFO_SURFACE = (1 << 1), + CAIRO_SCALED_GLYPH_INFO_PATH = (1 << 2), + CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE = (1 << 3), + CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE = (1 << 4) +} cairo_scaled_glyph_info_t; + +typedef struct _cairo_scaled_font_subset { + cairo_scaled_font_t *scaled_font; + unsigned int font_id; + unsigned int subset_id; + + /* Index of glyphs array is subset_glyph_index. + * Value of glyphs array is scaled_font_glyph_index. + */ + unsigned long *glyphs; + char **utf8; + char **glyph_names; + int *to_latin_char; + unsigned long *latin_to_subset_glyph_index; + unsigned int num_glyphs; + cairo_bool_t is_composite; + cairo_bool_t is_scaled; + cairo_bool_t is_latin; +} cairo_scaled_font_subset_t; + +struct _cairo_scaled_font_backend { + cairo_font_type_t type; + + void + (*fini) (void *scaled_font); + + /* + * Get the requested glyph info. + * @scaled_font: a #cairo_scaled_font_t + * @scaled_glyph: a #cairo_scaled_glyph_t the glyph + * @info: a #cairo_scaled_glyph_info_t which information to retrieve + * %CAIRO_SCALED_GLYPH_INFO_METRICS - glyph metrics and bounding box + * %CAIRO_SCALED_GLYPH_INFO_SURFACE - surface holding glyph image + * %CAIRO_SCALED_GLYPH_INFO_PATH - path holding glyph outline in device space + * %CAIRO_SCALED_GLYPH_INFO_RECORDING_SURFACE - surface holding recording of glyph + * %CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE - surface holding color glyph image + * @foreground_color - foreground color to use when rendering color fonts. Use NULL + * if not requesting CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE or foreground color is unknown. + */ + cairo_warn cairo_int_status_t + (*scaled_glyph_init) (void *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_glyph_info_t info, + const cairo_color_t *foreground_color); + + /* A backend only needs to implement this or ucs4_to_index(), not + * both. This allows the backend to do something more sophisticated + * then just converting characters one by one. + */ + cairo_warn cairo_int_status_t + (*text_to_glyphs) (void *scaled_font, + double x, + double y, + const char *utf8, + int utf8_len, + cairo_glyph_t **glyphs, + int *num_glyphs, + cairo_text_cluster_t **clusters, + int *num_clusters, + cairo_text_cluster_flags_t *cluster_flags); + + /* Get the glyph index for the given unicode code point. + * @scaled_font: a #cairo_scaled_font_t + * @ucs4: unicode code point + * Returns glyph index or 0 if not found. + */ + unsigned long + (*ucs4_to_index) (void *scaled_font, + uint32_t ucs4); + + /* Read data from a sfnt font table. + * @scaled_font: font + * @tag: 4 byte table name specifying the table to read. + * @offset: offset into the table + * @buffer: buffer to write data into. Caller must ensure there is sufficient space. + * If NULL, return the size of the table in @length. + * @length: If @buffer is NULL, the size of the table will be returned in @length. + * If @buffer is not null, @length specifies the number of bytes to read. + * + * If less than @length bytes are available to read this function + * returns CAIRO_INT_STATUS_UNSUPPORTED. Note that requesting more + * bytes than are available in the table may continue reading data + * from the following table and return success. If this is + * undesirable the caller should first query the table size. If an + * error occurs the output value of @length is undefined. + * + * Returns CAIRO_INT_STATUS_UNSUPPORTED if not a sfnt style font or table not found. + */ + cairo_warn cairo_int_status_t + (*load_truetype_table)(void *scaled_font, + unsigned long tag, + long offset, + unsigned char *buffer, + unsigned long *length); + + /* ucs4 is set to -1 if the unicode character could not be found + * for the glyph */ + cairo_warn cairo_int_status_t + (*index_to_ucs4)(void *scaled_font, + unsigned long index, + uint32_t *ucs4); + + /* Determine if this scaled font differs from the outlines in the font tables. + * eg synthesized bold/italic or a non default variant of a variable font. + * @scaled_font: font + * @is_sythetic: returns TRUE if scaled font is synthetic + * Returns cairo status + */ + cairo_warn cairo_int_status_t + (*is_synthetic)(void *scaled_font, + cairo_bool_t *is_synthetic); + + /* For type 1 fonts, return the glyph name for a given glyph index. + * A glyph index and list of glyph names in the Type 1 fonts is provided. + * The function returns the index of the glyph in the list of glyph names. + * @scaled_font: font + * @glyph_names: the names of each glyph in the Type 1 font in the + * order they appear in the CharStrings array + * @num_glyph_names: the number of names in the glyph_names array + * @glyph_index: the given glyph index + * @glyph_array_index: (index into glyph_names) the glyph name corresponding + * to the glyph_index + */ + cairo_warn cairo_int_status_t + (*index_to_glyph_name)(void *scaled_font, + char **glyph_names, + int num_glyph_names, + unsigned long glyph_index, + unsigned long *glyph_array_index); + + /* Read data from a PostScript font. + * @scaled_font: font + * @offset: offset into the table + * @buffer: buffer to write data into. Caller must ensure there is sufficient space. + * If NULL, return the size of the table in @length. + * @length: If @buffer is NULL, the size of the table will be returned in @length. + * If @buffer is not null, @length specifies the number of bytes to read. + * + * If less than @length bytes are available to read this function + * returns CAIRO_INT_STATUS_UNSUPPORTED. If an error occurs the + * output value of @length is undefined. + * + * Returns CAIRO_INT_STATUS_UNSUPPORTED if not a Type 1 font. + */ + cairo_warn cairo_int_status_t + (*load_type1_data) (void *scaled_font, + long offset, + unsigned char *buffer, + unsigned long *length); + + /* Check if font has any color glyphs. + * @scaled_font: font + * Returns TRUE if font contains any color glyphs + */ + cairo_bool_t + (*has_color_glyphs) (void *scaled_font); +}; + +struct _cairo_font_face_backend { + cairo_font_type_t type; + + cairo_warn cairo_status_t + (*create_for_toy) (cairo_toy_font_face_t *toy_face, + cairo_font_face_t **font_face); + + /* The destroy() function is allowed to resurrect the font face + * by re-referencing. This is needed for the FreeType backend. + */ + cairo_bool_t + (*destroy) (void *font_face); + + cairo_warn cairo_status_t + (*scaled_font_create) (void *font_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options, + cairo_scaled_font_t **scaled_font); + + cairo_font_face_t * + (*get_implementation) (void *font_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options); +}; + +extern const cairo_private struct _cairo_font_face_backend _cairo_user_font_face_backend; + +/* concrete font backends */ +#if CAIRO_HAS_FT_FONT + +extern const cairo_private struct _cairo_font_face_backend _cairo_ft_font_face_backend; + +#endif + +#if CAIRO_HAS_WIN32_FONT + +extern const cairo_private struct _cairo_font_face_backend _cairo_win32_font_face_backend; + +#endif + +#if CAIRO_HAS_DWRITE_FONT + +extern const cairo_private struct _cairo_font_face_backend _cairo_dwrite_font_face_backend; + +#endif + +#if CAIRO_HAS_QUARTZ_FONT + +extern const cairo_private struct _cairo_font_face_backend _cairo_quartz_font_face_backend; + +#endif + +#define CAIRO_EXTEND_SURFACE_DEFAULT CAIRO_EXTEND_NONE +#define CAIRO_EXTEND_GRADIENT_DEFAULT CAIRO_EXTEND_PAD +#define CAIRO_FILTER_DEFAULT CAIRO_FILTER_GOOD + +extern const cairo_private cairo_solid_pattern_t _cairo_pattern_clear; +extern const cairo_private cairo_solid_pattern_t _cairo_pattern_black; +extern const cairo_private cairo_solid_pattern_t _cairo_pattern_white; + +struct _cairo_surface_attributes { + cairo_matrix_t matrix; + cairo_extend_t extend; + cairo_filter_t filter; + cairo_bool_t has_component_alpha; + int x_offset; + int y_offset; + void *extra; +}; + +#define CAIRO_FONT_SLANT_DEFAULT CAIRO_FONT_SLANT_NORMAL +#define CAIRO_FONT_WEIGHT_DEFAULT CAIRO_FONT_WEIGHT_NORMAL + +#define CAIRO_WIN32_FONT_FAMILY_DEFAULT "Arial" +#define CAIRO_DWRITE_FONT_FAMILY_DEFAULT "Arial" +#define CAIRO_QUARTZ_FONT_FAMILY_DEFAULT "Helvetica" +#define CAIRO_FT_FONT_FAMILY_DEFAULT "" +#define CAIRO_USER_FONT_FAMILY_DEFAULT "@cairo:" + +#if CAIRO_HAS_DWRITE_FONT + +#define CAIRO_FONT_FAMILY_DEFAULT CAIRO_DWRITE_FONT_FAMILY_DEFAULT +#define CAIRO_FONT_FACE_BACKEND_DEFAULT &_cairo_dwrite_font_face_backend + +#elif CAIRO_HAS_WIN32_FONT + +#define CAIRO_FONT_FAMILY_DEFAULT CAIRO_WIN32_FONT_FAMILY_DEFAULT +#define CAIRO_FONT_FACE_BACKEND_DEFAULT &_cairo_win32_font_face_backend + +#elif CAIRO_HAS_QUARTZ_FONT + +#define CAIRO_FONT_FAMILY_DEFAULT CAIRO_QUARTZ_FONT_FAMILY_DEFAULT +#define CAIRO_FONT_FACE_BACKEND_DEFAULT &_cairo_quartz_font_face_backend + +#elif CAIRO_HAS_FT_FONT + +#define CAIRO_FONT_FAMILY_DEFAULT CAIRO_FT_FONT_FAMILY_DEFAULT +#define CAIRO_FONT_FACE_BACKEND_DEFAULT &_cairo_ft_font_face_backend + +#else + +#define CAIRO_FONT_FAMILY_DEFAULT CAIRO_FT_FONT_FAMILY_DEFAULT +#define CAIRO_FONT_FACE_BACKEND_DEFAULT &_cairo_user_font_face_backend + +#endif + +#define CAIRO_GSTATE_OPERATOR_DEFAULT CAIRO_OPERATOR_OVER +#define CAIRO_GSTATE_TOLERANCE_DEFAULT 0.1 +#define CAIRO_GSTATE_FILL_RULE_DEFAULT CAIRO_FILL_RULE_WINDING +#define CAIRO_GSTATE_LINE_WIDTH_DEFAULT 2.0 +#define CAIRO_GSTATE_LINE_CAP_DEFAULT CAIRO_LINE_CAP_BUTT +#define CAIRO_GSTATE_LINE_JOIN_DEFAULT CAIRO_LINE_JOIN_MITER +#define CAIRO_GSTATE_MITER_LIMIT_DEFAULT 10.0 +#define CAIRO_GSTATE_DEFAULT_FONT_SIZE 10.0 + +#define CAIRO_SURFACE_RESOLUTION_DEFAULT 72.0 +#define CAIRO_SURFACE_FALLBACK_RESOLUTION_DEFAULT 300.0 + +typedef struct _cairo_stroke_face { + cairo_point_t ccw; + cairo_point_t point; + cairo_point_t cw; + cairo_slope_t dev_vector; + cairo_point_double_t dev_slope; + cairo_point_double_t usr_vector; + double length; +} cairo_stroke_face_t; + +/* cairo.c */ + +static inline double cairo_const +_cairo_restrict_value (double value, double min, double max) +{ + if (value < min) + return min; + else if (value > max) + return max; + else + return value; +} + +/* C99 round() rounds to the nearest integral value with halfway cases rounded + * away from 0. _cairo_round rounds halfway cases toward positive infinity. + * This matches the rounding behaviour of _cairo_lround. */ +static inline double cairo_const +_cairo_round (double r) +{ + return floor (r + .5); +} + +#if DISABLE_SOME_FLOATING_POINT +cairo_private int +_cairo_lround (double d) cairo_const; +#else +static inline int cairo_const +_cairo_lround (double r) +{ + return _cairo_round (r); +} +#endif + +cairo_private uint16_t +_cairo_half_from_float (float f) cairo_const; + +cairo_private cairo_bool_t +_cairo_operator_bounded_by_mask (cairo_operator_t op) cairo_const; + +cairo_private cairo_bool_t +_cairo_operator_bounded_by_source (cairo_operator_t op) cairo_const; + +enum { + CAIRO_OPERATOR_BOUND_BY_MASK = 1 << 1, + CAIRO_OPERATOR_BOUND_BY_SOURCE = 1 << 2, +}; + +cairo_private uint32_t +_cairo_operator_bounded_by_either (cairo_operator_t op) cairo_const; +/* cairo-color.c */ +cairo_private const cairo_color_t * +_cairo_stock_color (cairo_stock_t stock) cairo_pure; + +#define CAIRO_COLOR_WHITE _cairo_stock_color (CAIRO_STOCK_WHITE) +#define CAIRO_COLOR_BLACK _cairo_stock_color (CAIRO_STOCK_BLACK) +#define CAIRO_COLOR_TRANSPARENT _cairo_stock_color (CAIRO_STOCK_TRANSPARENT) + +cairo_private uint16_t +_cairo_color_double_to_short (double d) cairo_const; + +cairo_private void +_cairo_color_init_rgba (cairo_color_t *color, + double red, double green, double blue, + double alpha); + +cairo_private void +_cairo_color_multiply_alpha (cairo_color_t *color, + double alpha); + +cairo_private void +_cairo_color_get_rgba (cairo_color_t *color, + double *red, + double *green, + double *blue, + double *alpha); + +cairo_private void +_cairo_color_get_rgba_premultiplied (cairo_color_t *color, + double *red, + double *green, + double *blue, + double *alpha); + +cairo_private cairo_bool_t +_cairo_color_equal (const cairo_color_t *color_a, + const cairo_color_t *color_b) cairo_pure; + +cairo_private cairo_bool_t +_cairo_color_stop_equal (const cairo_color_stop_t *color_a, + const cairo_color_stop_t *color_b) cairo_pure; + +cairo_private cairo_content_t +_cairo_color_get_content (const cairo_color_t *color) cairo_pure; + +/* cairo-font-face.c */ + +extern const cairo_private cairo_font_face_t _cairo_font_face_nil; +extern const cairo_private cairo_font_face_t _cairo_font_face_nil_file_not_found; + +cairo_private void +_cairo_font_face_init (cairo_font_face_t *font_face, + const cairo_font_face_backend_t *backend); + +cairo_private cairo_bool_t +_cairo_font_face_destroy (void *abstract_face); + +cairo_private cairo_status_t +_cairo_font_face_set_error (cairo_font_face_t *font_face, + cairo_status_t status); + +cairo_private void +_cairo_unscaled_font_init (cairo_unscaled_font_t *font, + const cairo_unscaled_font_backend_t *backend); + +cairo_private_no_warn cairo_unscaled_font_t * +_cairo_unscaled_font_reference (cairo_unscaled_font_t *font); + +cairo_private void +_cairo_unscaled_font_destroy (cairo_unscaled_font_t *font); + +/* cairo-font-face-twin.c */ + +cairo_private cairo_font_face_t * +_cairo_font_face_twin_create_fallback (void); + +cairo_private cairo_status_t +_cairo_font_face_twin_create_for_toy (cairo_toy_font_face_t *toy_face, + cairo_font_face_t **font_face); + +/* cairo-font-face-twin-data.c */ + +extern const cairo_private int8_t _cairo_twin_outlines[]; +extern const cairo_private uint16_t _cairo_twin_charmap[128]; + +/* cairo-font-options.c */ + +cairo_private void +_cairo_font_options_init_default (cairo_font_options_t *options); + +cairo_private void +_cairo_font_options_init_copy (cairo_font_options_t *options, + const cairo_font_options_t *other); + +cairo_private cairo_bool_t +_cairo_font_options_compare (const cairo_font_options_t *a, + const cairo_font_options_t *b); + +cairo_private void +_cairo_font_options_fini (cairo_font_options_t *options); + +cairo_private void +_cairo_font_options_set_lcd_filter (cairo_font_options_t *options, + cairo_lcd_filter_t lcd_filter); + +cairo_private cairo_lcd_filter_t +_cairo_font_options_get_lcd_filter (const cairo_font_options_t *options); + +cairo_private void +_cairo_font_options_set_round_glyph_positions (cairo_font_options_t *options, + cairo_round_glyph_positions_t round); + +cairo_private cairo_round_glyph_positions_t +_cairo_font_options_get_round_glyph_positions (const cairo_font_options_t *options); + +/* cairo-hull.c */ +cairo_private cairo_status_t +_cairo_hull_compute (cairo_pen_vertex_t *vertices, int *num_vertices); + +/* cairo-lzw.c */ +cairo_private unsigned char * +_cairo_lzw_compress (unsigned char *data, unsigned long *size_in_out); + +/* cairo-misc.c */ +cairo_private cairo_status_t +_cairo_validate_text_clusters (const char *utf8, + int utf8_len, + const cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags); + +cairo_private unsigned long +_cairo_string_hash (const char *str, int len); + +cairo_private cairo_status_t +_cairo_intern_string (const char **str_inout, int len); + +cairo_private void +_cairo_intern_string_reset_static_data (void); + +cairo_private const char * +_cairo_get_locale_decimal_point (void); + +cairo_private double +_cairo_strtod (const char *nptr, char **endptr); + +#ifdef HAVE_STRNDUP +#define _cairo_strndup strndup +#else +cairo_private char * +_cairo_strndup (const char *s, size_t n); +#endif + +/* cairo-path-fixed.c */ +cairo_private cairo_path_fixed_t * +_cairo_path_fixed_create (void); + +cairo_private void +_cairo_path_fixed_init (cairo_path_fixed_t *path); + +cairo_private cairo_status_t +_cairo_path_fixed_init_copy (cairo_path_fixed_t *path, + const cairo_path_fixed_t *other); + +cairo_private void +_cairo_path_fixed_fini (cairo_path_fixed_t *path); + +cairo_private void +_cairo_path_fixed_destroy (cairo_path_fixed_t *path); + +cairo_private cairo_status_t +_cairo_path_fixed_move_to (cairo_path_fixed_t *path, + cairo_fixed_t x, + cairo_fixed_t y); + +cairo_private void +_cairo_path_fixed_new_sub_path (cairo_path_fixed_t *path); + +cairo_private cairo_status_t +_cairo_path_fixed_rel_move_to (cairo_path_fixed_t *path, + cairo_fixed_t dx, + cairo_fixed_t dy); + +cairo_private cairo_status_t +_cairo_path_fixed_line_to (cairo_path_fixed_t *path, + cairo_fixed_t x, + cairo_fixed_t y); + +cairo_private cairo_status_t +_cairo_path_fixed_rel_line_to (cairo_path_fixed_t *path, + cairo_fixed_t dx, + cairo_fixed_t dy); + +cairo_private cairo_status_t +_cairo_path_fixed_curve_to (cairo_path_fixed_t *path, + cairo_fixed_t x0, cairo_fixed_t y0, + cairo_fixed_t x1, cairo_fixed_t y1, + cairo_fixed_t x2, cairo_fixed_t y2); + +cairo_private cairo_status_t +_cairo_path_fixed_rel_curve_to (cairo_path_fixed_t *path, + cairo_fixed_t dx0, cairo_fixed_t dy0, + cairo_fixed_t dx1, cairo_fixed_t dy1, + cairo_fixed_t dx2, cairo_fixed_t dy2); + +cairo_private cairo_status_t +_cairo_path_fixed_close_path (cairo_path_fixed_t *path); + +cairo_private cairo_bool_t +_cairo_path_fixed_get_current_point (cairo_path_fixed_t *path, + cairo_fixed_t *x, + cairo_fixed_t *y); + +typedef cairo_status_t +(cairo_path_fixed_move_to_func_t) (void *closure, + const cairo_point_t *point); + +typedef cairo_status_t +(cairo_path_fixed_line_to_func_t) (void *closure, + const cairo_point_t *point); + +typedef cairo_status_t +(cairo_path_fixed_curve_to_func_t) (void *closure, + const cairo_point_t *p0, + const cairo_point_t *p1, + const cairo_point_t *p2); + +typedef cairo_status_t +(cairo_path_fixed_close_path_func_t) (void *closure); + +cairo_private cairo_status_t +_cairo_path_fixed_interpret (const cairo_path_fixed_t *path, + cairo_path_fixed_move_to_func_t *move_to, + cairo_path_fixed_line_to_func_t *line_to, + cairo_path_fixed_curve_to_func_t *curve_to, + cairo_path_fixed_close_path_func_t *close_path, + void *closure); + +cairo_private cairo_status_t +_cairo_path_fixed_interpret_flat (const cairo_path_fixed_t *path, + cairo_path_fixed_move_to_func_t *move_to, + cairo_path_fixed_line_to_func_t *line_to, + cairo_path_fixed_close_path_func_t *close_path, + void *closure, + double tolerance); + + +cairo_private cairo_bool_t +_cairo_path_bounder_extents (const cairo_path_fixed_t *path, + cairo_box_t *box); + +cairo_private cairo_bool_t +_cairo_path_fixed_extents (const cairo_path_fixed_t *path, + cairo_box_t *box); + +cairo_private void +_cairo_path_fixed_approximate_clip_extents (const cairo_path_fixed_t *path, + cairo_rectangle_int_t *extents); + +cairo_private void +_cairo_path_fixed_approximate_fill_extents (const cairo_path_fixed_t *path, + cairo_rectangle_int_t *extents); + +cairo_private void +_cairo_path_fixed_fill_extents (const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_rectangle_int_t *extents); + +cairo_private void +_cairo_path_fixed_approximate_stroke_extents (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + cairo_bool_t vector, + cairo_rectangle_int_t *extents); + +cairo_private cairo_status_t +_cairo_path_fixed_stroke_extents (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_rectangle_int_t *extents); + +cairo_private void +_cairo_path_fixed_transform (cairo_path_fixed_t *path, + const cairo_matrix_t *matrix); + +cairo_private cairo_bool_t +_cairo_path_fixed_is_box (const cairo_path_fixed_t *path, + cairo_box_t *box); + +cairo_private cairo_bool_t +_cairo_path_fixed_is_rectangle (const cairo_path_fixed_t *path, + cairo_box_t *box); + +/* cairo-path-in-fill.c */ +cairo_private cairo_bool_t +_cairo_path_fixed_in_fill (const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + double x, + double y); + +/* cairo-path-fill.c */ +cairo_private cairo_status_t +_cairo_path_fixed_fill_to_polygon (const cairo_path_fixed_t *path, + double tolerance, + cairo_polygon_t *polygon); + +cairo_private cairo_status_t +_cairo_path_fixed_fill_rectilinear_to_polygon (const cairo_path_fixed_t *path, + cairo_antialias_t antialias, + cairo_polygon_t *polygon); + +cairo_private cairo_status_t +_cairo_path_fixed_fill_rectilinear_to_boxes (const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + cairo_antialias_t antialias, + cairo_boxes_t *boxes); + +cairo_private cairo_region_t * +_cairo_path_fixed_fill_rectilinear_to_region (const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + const cairo_rectangle_int_t *extents); + +cairo_private cairo_status_t +_cairo_path_fixed_fill_to_traps (const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_traps_t *traps); + +/* cairo-path-stroke.c */ +cairo_private cairo_status_t +_cairo_path_fixed_stroke_to_polygon (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_polygon_t *polygon); + +cairo_private cairo_int_status_t +_cairo_path_fixed_stroke_to_tristrip (const cairo_path_fixed_t *path, + const cairo_stroke_style_t*style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_tristrip_t *strip); + +cairo_private cairo_status_t +_cairo_path_fixed_stroke_dashed_to_polygon (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_polygon_t *polygon); + +cairo_private cairo_int_status_t +_cairo_path_fixed_stroke_rectilinear_to_boxes (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + cairo_antialias_t antialias, + cairo_boxes_t *boxes); + +cairo_private cairo_int_status_t +_cairo_path_fixed_stroke_to_traps (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_traps_t *traps); + +cairo_private cairo_int_status_t +_cairo_path_fixed_stroke_polygon_to_traps (const cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_traps_t *traps); + +cairo_private cairo_status_t +_cairo_path_fixed_stroke_to_shaper (cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_status_t (*add_triangle) (void *closure, + const cairo_point_t triangle[3]), + cairo_status_t (*add_triangle_fan) (void *closure, + const cairo_point_t *midpt, + const cairo_point_t *points, + int npoints), + cairo_status_t (*add_quad) (void *closure, + const cairo_point_t quad[4]), + void *closure); + +/* cairo-scaled-font.c */ + +cairo_private void +_cairo_scaled_font_freeze_cache (cairo_scaled_font_t *scaled_font); + +cairo_private void +_cairo_scaled_font_thaw_cache (cairo_scaled_font_t *scaled_font); + +cairo_private void +_cairo_scaled_font_reset_cache (cairo_scaled_font_t *scaled_font); + +cairo_private cairo_status_t +_cairo_scaled_font_set_error (cairo_scaled_font_t *scaled_font, + cairo_status_t status); + +cairo_private cairo_scaled_font_t * +_cairo_scaled_font_create_in_error (cairo_status_t status); + +cairo_private void +_cairo_scaled_font_reset_static_data (void); + +cairo_private cairo_status_t +_cairo_scaled_font_register_placeholder_and_unlock_font_map (cairo_scaled_font_t *scaled_font); + +cairo_private void +_cairo_scaled_font_unregister_placeholder_and_lock_font_map (cairo_scaled_font_t *scaled_font); + +cairo_private cairo_status_t +_cairo_scaled_font_init (cairo_scaled_font_t *scaled_font, + cairo_font_face_t *font_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options, + const cairo_scaled_font_backend_t *backend); + +cairo_private cairo_status_t +_cairo_scaled_font_set_metrics (cairo_scaled_font_t *scaled_font, + cairo_font_extents_t *fs_metrics); + +/* This should only be called on an error path by a scaled_font constructor */ +cairo_private void +_cairo_scaled_font_fini (cairo_scaled_font_t *scaled_font); + +cairo_private cairo_status_t +_cairo_scaled_font_font_extents (cairo_scaled_font_t *scaled_font, + cairo_font_extents_t *extents); + +cairo_private cairo_status_t +_cairo_scaled_font_glyph_device_extents (cairo_scaled_font_t *scaled_font, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_rectangle_int_t *extents, + cairo_bool_t *overlap); + +cairo_private cairo_bool_t +_cairo_scaled_font_glyph_approximate_extents (cairo_scaled_font_t *scaled_font, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_rectangle_int_t *extents); + +cairo_private cairo_status_t +_cairo_scaled_font_show_glyphs (cairo_scaled_font_t *scaled_font, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_surface_t *surface, + int source_x, + int source_y, + int dest_x, + int dest_y, + unsigned int width, + unsigned int height, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_region_t *clip_region); + +cairo_private cairo_status_t +_cairo_scaled_font_glyph_path (cairo_scaled_font_t *scaled_font, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_path_fixed_t *path); + +cairo_private void +_cairo_scaled_glyph_set_metrics (cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_font_t *scaled_font, + cairo_text_extents_t *fs_metrics); + +cairo_private void +_cairo_scaled_glyph_set_surface (cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_font_t *scaled_font, + cairo_image_surface_t *surface); + +cairo_private void +_cairo_scaled_glyph_set_path (cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_font_t *scaled_font, + cairo_path_fixed_t *path); + +cairo_private void +_cairo_scaled_glyph_set_recording_surface (cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_font_t *scaled_font, + cairo_surface_t *recording_surface, + const cairo_color_t *foreground_color); + +cairo_private void +_cairo_scaled_glyph_set_color_surface (cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_font_t *scaled_font, + cairo_image_surface_t *surface, + const cairo_color_t *foreground_color); + +cairo_private cairo_int_status_t +_cairo_scaled_glyph_lookup (cairo_scaled_font_t *scaled_font, + unsigned long index, + cairo_scaled_glyph_info_t info, + const cairo_color_t *foreground_color, + cairo_scaled_glyph_t **scaled_glyph_ret); + +cairo_private double +_cairo_scaled_font_get_max_scale (cairo_scaled_font_t *scaled_font); + +cairo_private void +_cairo_scaled_font_map_destroy (void); + +/* cairo-stroke-style.c */ + +cairo_private void +_cairo_stroke_style_init (cairo_stroke_style_t *style); + +cairo_private cairo_status_t +_cairo_stroke_style_init_copy (cairo_stroke_style_t *style, + const cairo_stroke_style_t *other); + +cairo_private void +_cairo_stroke_style_fini (cairo_stroke_style_t *style); + +cairo_private void +_cairo_stroke_style_max_distance_from_path (const cairo_stroke_style_t *style, + const cairo_path_fixed_t *path, + const cairo_matrix_t *ctm, + double *dx, double *dy); +cairo_private void +_cairo_stroke_style_max_line_distance_from_path (const cairo_stroke_style_t *style, + const cairo_path_fixed_t *path, + const cairo_matrix_t *ctm, + double *dx, double *dy); + +cairo_private void +_cairo_stroke_style_max_join_distance_from_path (const cairo_stroke_style_t *style, + const cairo_path_fixed_t *path, + const cairo_matrix_t *ctm, + double *dx, double *dy); + +cairo_private double +_cairo_stroke_style_dash_period (const cairo_stroke_style_t *style); + +cairo_private double +_cairo_stroke_style_dash_stroked (const cairo_stroke_style_t *style); + +cairo_private cairo_bool_t +_cairo_stroke_style_dash_can_approximate (const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + double tolerance); + +cairo_private void +_cairo_stroke_style_dash_approximate (const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + double tolerance, + double *dash_offset, + double *dashes, + unsigned int *num_dashes); + + +/* cairo-surface.c */ + +cairo_private cairo_bool_t +_cairo_surface_has_mime_image (cairo_surface_t *surface); + +cairo_private cairo_status_t +_cairo_surface_copy_mime_data (cairo_surface_t *dst, + cairo_surface_t *src); + +cairo_private_no_warn cairo_int_status_t +_cairo_surface_set_error (cairo_surface_t *surface, + cairo_int_status_t status); + +cairo_private void +_cairo_surface_set_resolution (cairo_surface_t *surface, + double x_res, + double y_res); + +cairo_private cairo_surface_t * +_cairo_surface_create_for_rectangle_int (cairo_surface_t *target, + const cairo_rectangle_int_t *extents); + +cairo_private cairo_surface_t * +_cairo_surface_create_scratch (cairo_surface_t *other, + cairo_content_t content, + int width, + int height, + const cairo_color_t *color); + +cairo_private void +_cairo_surface_init (cairo_surface_t *surface, + const cairo_surface_backend_t *backend, + cairo_device_t *device, + cairo_content_t content, + cairo_bool_t is_vector); + +cairo_private void +_cairo_surface_set_font_options (cairo_surface_t *surface, + cairo_font_options_t *options); + +cairo_private cairo_status_t +_cairo_surface_paint (cairo_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip); + +cairo_private cairo_image_surface_t * +_cairo_surface_map_to_image (cairo_surface_t *surface, + const cairo_rectangle_int_t *extents); + +cairo_private_no_warn cairo_int_status_t +_cairo_surface_unmap_image (cairo_surface_t *surface, + cairo_image_surface_t *image); + +cairo_private cairo_status_t +_cairo_surface_mask (cairo_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_fill_stroke (cairo_surface_t *surface, + cairo_operator_t fill_op, + const cairo_pattern_t *fill_source, + cairo_fill_rule_t fill_rule, + double fill_tolerance, + cairo_antialias_t fill_antialias, + cairo_path_fixed_t *path, + cairo_operator_t stroke_op, + const cairo_pattern_t *stroke_source, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *stroke_ctm, + const cairo_matrix_t *stroke_ctm_inverse, + double stroke_tolerance, + cairo_antialias_t stroke_antialias, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_stroke (cairo_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_fill (cairo_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_show_text_glyphs (cairo_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const char *utf8, + int utf8_len, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_surface_tag (cairo_surface_t *surface, + cairo_bool_t begin, + const char *tag_name, + const char *attributes); + +cairo_private cairo_bool_t +_cairo_surface_supports_color_glyph (cairo_surface_t *surface, + cairo_scaled_font_t *scaled_font, + unsigned long glyph_index); + +cairo_private cairo_status_t +_cairo_surface_acquire_source_image (cairo_surface_t *surface, + cairo_image_surface_t **image_out, + void **image_extra); + +cairo_private void +_cairo_surface_release_source_image (cairo_surface_t *surface, + cairo_image_surface_t *image, + void *image_extra); + +cairo_private cairo_surface_t * +_cairo_surface_snapshot (cairo_surface_t *surface); + +cairo_private void +_cairo_surface_attach_snapshot (cairo_surface_t *surface, + cairo_surface_t *snapshot, + cairo_surface_func_t detach_func); + +cairo_private cairo_surface_t * +_cairo_surface_has_snapshot (cairo_surface_t *surface, + const cairo_surface_backend_t *backend); + +cairo_private void +_cairo_surface_detach_snapshot (cairo_surface_t *snapshot); + +cairo_private cairo_status_t +_cairo_surface_begin_modification (cairo_surface_t *surface); + +cairo_private_no_warn cairo_bool_t +_cairo_surface_get_extents (cairo_surface_t *surface, + cairo_rectangle_int_t *extents); + +cairo_private cairo_bool_t +_cairo_surface_has_device_transform (cairo_surface_t *surface) cairo_pure; + +cairo_private void +_cairo_surface_release_device_reference (cairo_surface_t *surface); + +/* cairo-image-surface.c */ + +/* XXX: In cairo 1.2.0 we added a new %CAIRO_FORMAT_RGB16_565 but + * neglected to adjust this macro. The net effect is that it's + * impossible to externally create an image surface with this + * format. This is perhaps a good thing since we also neglected to fix + * up things like cairo_surface_write_to_png() for the new format + * (-Wswitch-enum will tell you where). Is it obvious that format was + * added in haste? + * + * The reason for the new format was to allow the xlib backend to be + * used on X servers with a 565 visual. So the new format did its job + * for that, even without being considered "valid" for the sake of + * things like cairo_image_surface_create(). + * + * Since 1.2.0 we ran into the same situation with X servers with BGR + * visuals. This time we invented #cairo_internal_format_t instead, + * (see it for more discussion). + * + * The punchline is that %CAIRO_FORMAT_VALID must not consider any + * internal format to be valid. Also we need to decide if the + * RGB16_565 should be moved to instead be an internal format. If so, + * this macro need not change for it. (We probably will need to leave + * an RGB16_565 value in the header files for the sake of code that + * might have that value in it.) + * + * If we do decide to start fully supporting RGB16_565 as an external + * format, then %CAIRO_FORMAT_VALID needs to be adjusted to include + * it. But that should not happen before all necessary code is fixed + * to support it (at least cairo_surface_write_to_png() and a few spots + * in cairo-xlib-surface.c--again see -Wswitch-enum). + */ +#define CAIRO_FORMAT_VALID(format) ((format) >= CAIRO_FORMAT_ARGB32 && \ + (format) <= CAIRO_FORMAT_RGBA128F) + +/* pixman-required stride alignment in bytes. */ +#define CAIRO_STRIDE_ALIGNMENT (sizeof (uint32_t)) +#define CAIRO_STRIDE_FOR_WIDTH_BPP(w,bpp) \ + ((((bpp)*(w)+7)/8 + CAIRO_STRIDE_ALIGNMENT-1) & -CAIRO_STRIDE_ALIGNMENT) + +#define CAIRO_CONTENT_VALID(content) ((content) && \ + (((content) & ~(CAIRO_CONTENT_COLOR | \ + CAIRO_CONTENT_ALPHA | \ + CAIRO_CONTENT_COLOR_ALPHA))\ + == 0)) + +cairo_private int +_cairo_format_bits_per_pixel (cairo_format_t format) cairo_const; + +cairo_private cairo_format_t +_cairo_format_from_content (cairo_content_t content) cairo_const; + +cairo_private cairo_format_t +_cairo_format_from_pixman_format (pixman_format_code_t pixman_format); + +cairo_private cairo_content_t +_cairo_content_from_format (cairo_format_t format) cairo_const; + +cairo_private cairo_content_t +_cairo_content_from_pixman_format (pixman_format_code_t pixman_format); + +cairo_private cairo_surface_t * +_cairo_image_surface_create_for_pixman_image (pixman_image_t *pixman_image, + pixman_format_code_t pixman_format); + +cairo_private pixman_format_code_t +_cairo_format_to_pixman_format_code (cairo_format_t format); + +cairo_private cairo_bool_t +_pixman_format_from_masks (cairo_format_masks_t *masks, + pixman_format_code_t *format_ret); + +cairo_private cairo_bool_t +_pixman_format_to_masks (pixman_format_code_t pixman_format, + cairo_format_masks_t *masks); + + +cairo_private void +_cairo_image_scaled_glyph_fini (cairo_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph); + +cairo_private void +_cairo_image_reset_static_data (void); + +cairo_private void +_cairo_image_compositor_reset_static_data (void); + +cairo_private cairo_surface_t * +_cairo_image_surface_create_with_pixman_format (unsigned char *data, + pixman_format_code_t pixman_format, + int width, + int height, + int stride); + +cairo_private cairo_surface_t * +_cairo_image_surface_create_with_content (cairo_content_t content, + int width, + int height); + +cairo_private void +_cairo_image_surface_assume_ownership_of_data (cairo_image_surface_t *surface); + +cairo_private cairo_image_surface_t * +_cairo_image_surface_coerce (cairo_image_surface_t *surface); + +cairo_private cairo_image_surface_t * +_cairo_image_surface_coerce_to_format (cairo_image_surface_t *surface, + cairo_format_t format); + +cairo_private cairo_image_transparency_t +_cairo_image_analyze_transparency (cairo_image_surface_t *image); + +cairo_private cairo_image_color_t +_cairo_image_analyze_color (cairo_image_surface_t *image); + +/* cairo-pen.c */ +cairo_private int +_cairo_pen_vertices_needed (double tolerance, + double radius, + const cairo_matrix_t *matrix); + +cairo_private cairo_status_t +_cairo_pen_init (cairo_pen_t *pen, + double radius, + double tolerance, + const cairo_matrix_t *ctm); + +cairo_private void +_cairo_pen_init_empty (cairo_pen_t *pen); + +cairo_private cairo_status_t +_cairo_pen_init_copy (cairo_pen_t *pen, const cairo_pen_t *other); + +cairo_private void +_cairo_pen_fini (cairo_pen_t *pen); + +cairo_private cairo_status_t +_cairo_pen_add_points (cairo_pen_t *pen, cairo_point_t *point, int num_points); + +cairo_private int +_cairo_pen_find_active_cw_vertex_index (const cairo_pen_t *pen, + const cairo_slope_t *slope); + +cairo_private int +_cairo_pen_find_active_ccw_vertex_index (const cairo_pen_t *pen, + const cairo_slope_t *slope); + +cairo_private void +_cairo_pen_find_active_cw_vertices (const cairo_pen_t *pen, + const cairo_slope_t *in, + const cairo_slope_t *out, + int *start, int *stop); + +cairo_private void +_cairo_pen_find_active_ccw_vertices (const cairo_pen_t *pen, + const cairo_slope_t *in, + const cairo_slope_t *out, + int *start, int *stop); + +/* cairo-polygon.c */ +cairo_private void +_cairo_polygon_init (cairo_polygon_t *polygon, + const cairo_box_t *boxes, + int num_boxes); + +cairo_private void +_cairo_polygon_init_with_clip (cairo_polygon_t *polygon, + const cairo_clip_t *clip); + +cairo_private cairo_status_t +_cairo_polygon_init_boxes (cairo_polygon_t *polygon, + const cairo_boxes_t *boxes); + +cairo_private cairo_status_t +_cairo_polygon_init_box_array (cairo_polygon_t *polygon, + cairo_box_t *boxes, + int num_boxes); + +cairo_private void +_cairo_polygon_limit (cairo_polygon_t *polygon, + const cairo_box_t *limits, + int num_limits); + +cairo_private void +_cairo_polygon_limit_to_clip (cairo_polygon_t *polygon, + const cairo_clip_t *clip); + +cairo_private void +_cairo_polygon_fini (cairo_polygon_t *polygon); + +cairo_private_no_warn cairo_status_t +_cairo_polygon_add_line (cairo_polygon_t *polygon, + const cairo_line_t *line, + int top, int bottom, + int dir); + +cairo_private_no_warn cairo_status_t +_cairo_polygon_add_external_edge (void *polygon, + const cairo_point_t *p1, + const cairo_point_t *p2); + +cairo_private_no_warn cairo_status_t +_cairo_polygon_add_contour (cairo_polygon_t *polygon, + const cairo_contour_t *contour); + +cairo_private void +_cairo_polygon_translate (cairo_polygon_t *polygon, int dx, int dy); + +cairo_private cairo_status_t +_cairo_polygon_reduce (cairo_polygon_t *polygon, + cairo_fill_rule_t fill_rule); + +cairo_private cairo_status_t +_cairo_polygon_intersect (cairo_polygon_t *a, int winding_a, + cairo_polygon_t *b, int winding_b); + +cairo_private cairo_status_t +_cairo_polygon_intersect_with_boxes (cairo_polygon_t *polygon, + cairo_fill_rule_t *winding, + cairo_box_t *boxes, + int num_boxes); + +static inline cairo_bool_t +_cairo_polygon_is_empty (const cairo_polygon_t *polygon) +{ + return + polygon->num_edges == 0 || + polygon->extents.p2.x <= polygon->extents.p1.x; +} + +#define _cairo_polygon_status(P) ((cairo_polygon_t *) (P))->status + +/* cairo-spline.c */ +cairo_private cairo_bool_t +_cairo_spline_init (cairo_spline_t *spline, + cairo_spline_add_point_func_t add_point_func, + void *closure, + const cairo_point_t *a, const cairo_point_t *b, + const cairo_point_t *c, const cairo_point_t *d); + +cairo_private cairo_status_t +_cairo_spline_decompose (cairo_spline_t *spline, double tolerance); + +cairo_private cairo_status_t +_cairo_spline_bound (cairo_spline_add_point_func_t add_point_func, + void *closure, + const cairo_point_t *p0, const cairo_point_t *p1, + const cairo_point_t *p2, const cairo_point_t *p3); + +/* cairo-matrix.c */ +cairo_private void +_cairo_matrix_get_affine (const cairo_matrix_t *matrix, + double *xx, double *yx, + double *xy, double *yy, + double *x0, double *y0); + +cairo_private void +_cairo_matrix_transform_bounding_box (const cairo_matrix_t *matrix, + double *x1, double *y1, + double *x2, double *y2, + cairo_bool_t *is_tight); + +cairo_private void +_cairo_matrix_transform_bounding_box_fixed (const cairo_matrix_t *matrix, + cairo_box_t *bbox, + cairo_bool_t *is_tight); + +cairo_private cairo_bool_t +_cairo_matrix_is_invertible (const cairo_matrix_t *matrix) cairo_pure; + +cairo_private cairo_bool_t +_cairo_matrix_is_scale_0 (const cairo_matrix_t *matrix) cairo_pure; + +cairo_private double +_cairo_matrix_compute_determinant (const cairo_matrix_t *matrix) cairo_pure; + +cairo_private cairo_status_t +_cairo_matrix_compute_basis_scale_factors (const cairo_matrix_t *matrix, + double *sx, double *sy, int x_major); + +static inline cairo_bool_t +_cairo_matrix_is_identity (const cairo_matrix_t *matrix) +{ + return (matrix->xx == 1.0 && matrix->yx == 0.0 && + matrix->xy == 0.0 && matrix->yy == 1.0 && + matrix->x0 == 0.0 && matrix->y0 == 0.0); +} + +static inline cairo_bool_t +_cairo_matrix_is_translation (const cairo_matrix_t *matrix) +{ + return (matrix->xx == 1.0 && matrix->yx == 0.0 && + matrix->xy == 0.0 && matrix->yy == 1.0); +} + +static inline cairo_bool_t +_cairo_matrix_is_scale (const cairo_matrix_t *matrix) +{ + return matrix->yx == 0.0 && matrix->xy == 0.0; +} + +cairo_private cairo_bool_t +_cairo_matrix_is_integer_translation(const cairo_matrix_t *matrix, + int *itx, int *ity); + +cairo_private cairo_bool_t +_cairo_matrix_has_unity_scale (const cairo_matrix_t *matrix); + +cairo_private cairo_bool_t +_cairo_matrix_is_pixel_exact (const cairo_matrix_t *matrix) cairo_pure; + +cairo_private double +_cairo_matrix_transformed_circle_major_axis (const cairo_matrix_t *matrix, + double radius) cairo_pure; + +cairo_private cairo_bool_t +_cairo_matrix_is_pixman_translation (const cairo_matrix_t *matrix, + cairo_filter_t filter, + int *out_x_offset, + int *out_y_offset); + +cairo_private cairo_status_t +_cairo_matrix_to_pixman_matrix_offset (const cairo_matrix_t *matrix, + cairo_filter_t filter, + double xc, + double yc, + pixman_transform_t *out_transform, + int *out_x_offset, + int *out_y_offset); + +cairo_private void +_cairo_debug_print_matrix (FILE *file, const cairo_matrix_t *matrix); + +cairo_private void +_cairo_debug_print_rect (FILE *file, const cairo_rectangle_int_t *rect); + +cairo_private const char * +_cairo_debug_operator_to_string (cairo_operator_t op); + +cairo_private const char * +_cairo_debug_status_to_string (cairo_int_status_t status); + +cairo_private cairo_status_t +_cairo_bentley_ottmann_tessellate_rectilinear_polygon (cairo_traps_t *traps, + const cairo_polygon_t *polygon, + cairo_fill_rule_t fill_rule); + +cairo_private cairo_status_t +_cairo_bentley_ottmann_tessellate_polygon (cairo_traps_t *traps, + const cairo_polygon_t *polygon, + cairo_fill_rule_t fill_rule); + +cairo_private cairo_status_t +_cairo_bentley_ottmann_tessellate_traps (cairo_traps_t *traps, + cairo_fill_rule_t fill_rule); + +cairo_private cairo_status_t +_cairo_bentley_ottmann_tessellate_rectangular_traps (cairo_traps_t *traps, + cairo_fill_rule_t fill_rule); + +cairo_private cairo_status_t +_cairo_bentley_ottmann_tessellate_boxes (const cairo_boxes_t *in, + cairo_fill_rule_t fill_rule, + cairo_boxes_t *out); + +cairo_private cairo_status_t +_cairo_bentley_ottmann_tessellate_rectilinear_traps (cairo_traps_t *traps, + cairo_fill_rule_t fill_rule); + +cairo_private cairo_status_t +_cairo_bentley_ottmann_tessellate_rectilinear_polygon_to_boxes (const cairo_polygon_t *polygon, + cairo_fill_rule_t fill_rule, + cairo_boxes_t *boxes); + +cairo_private void +_cairo_trapezoid_array_translate_and_scale (cairo_trapezoid_t *offset_traps, + cairo_trapezoid_t *src_traps, + int num_traps, + double tx, double ty, + double sx, double sy); + +cairo_private void +_cairo_clip_reset_static_data (void); + +cairo_private void +_cairo_pattern_reset_static_data (void); + +/* cairo-unicode.c */ + +cairo_private int +_cairo_utf8_get_char_validated (const char *p, + uint32_t *unicode); + +cairo_private cairo_status_t +_cairo_utf8_to_ucs4 (const char *str, + int len, + uint32_t **result, + int *items_written); + +cairo_private int +_cairo_ucs4_to_utf8 (uint32_t unicode, + char *utf8); + +cairo_private int +_cairo_ucs4_to_utf16 (uint32_t unicode, + uint16_t *utf16); + +#if _WIN32 || CAIRO_HAS_WIN32_FONT || CAIRO_HAS_QUARTZ_FONT || CAIRO_HAS_PDF_OPERATORS +# define CAIRO_HAS_UTF8_TO_UTF16 1 +#endif +#if CAIRO_HAS_UTF8_TO_UTF16 +cairo_private cairo_status_t +_cairo_utf8_to_utf16 (const char *str, + int len, + uint16_t **result, + int *items_written); +#endif + +cairo_private void +_cairo_matrix_multiply (cairo_matrix_t *r, + const cairo_matrix_t *a, + const cairo_matrix_t *b); + +/* cairo-observer.c */ + +cairo_private void +_cairo_observers_notify (cairo_list_t *observers, void *arg); + +/* Open a file with a UTF-8 filename */ +cairo_private cairo_status_t +_cairo_fopen (const char *filename, const char *mode, FILE **file_out); + +cairo_private FILE * +_cairo_tmpfile (void); + +#include "cairo-mutex-private.h" +#include "cairo-fixed-private.h" +#include "cairo-wideint-private.h" +#include "cairo-malloc-private.h" +#include "cairo-hash-private.h" + +#if HAVE_VALGRIND +#include + +#define VG(x) x + +cairo_private void +_cairo_debug_check_image_surface_is_defined (const cairo_surface_t *surface); + +#else + +#define VG(x) +#define _cairo_debug_check_image_surface_is_defined(X) + +#endif + +cairo_private void +_cairo_debug_print_path (FILE *stream, const cairo_path_fixed_t *path); + +cairo_private void +_cairo_debug_print_polygon (FILE *stream, cairo_polygon_t *polygon); + +cairo_private void +_cairo_debug_print_traps (FILE *file, const cairo_traps_t *traps); + +cairo_private void +_cairo_debug_print_clip (FILE *stream, const cairo_clip_t *clip); + +#if 0 +#define TRACE(x) fprintf (stderr, "%s: ", __FILE__), fprintf x +#define TRACE_(x) x +#else +#define TRACE(x) +#define TRACE_(x) +#endif + +CAIRO_END_DECLS + +#endif diff --git a/local/recipes/libs/cairo/source/src/check-doc-syntax.awk b/local/recipes/libs/cairo/source/src/check-doc-syntax.awk new file mode 100644 index 0000000000..1fa8b8d223 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/check-doc-syntax.awk @@ -0,0 +1,106 @@ +BEGIN { + name_found = 1 + SECTION_DOC = 0 + PUBLIC_DOC = 1 + PRIVATE_DOC = 2 +} + +function log_msg(severity, msg) +{ + printf "%s (%d): %s: %s %s\n", FILENAME, FNR, severity, doc_name, msg +} + +function log_error(msg) +{ + log_msg("ERROR", msg) +} + +function log_warning(msg) +{ + log_msg("WARNING", msg) +} + +/^\/\*\*$/ { + in_doc = 1 + doc_line = 0 +} + +/^(\/\*\*$| \*[ \t]| \*$| \*\*\/$)/ { + valid_doc = 1 +} + +in_doc { + if (!valid_doc) + log_error("bad line: '" $0 "'") + valid_doc = 0 + + doc_line++ + if (doc_line == 2) { + # new doc name. Did we find the previous one? + # (macros are not expected to be found in the same place as + # their documentation) + if (!name_found && doc_name !~ /CAIRO_/) + log_warning("not found") + doc_name = $2 + if (doc_name ~ /^SECTION:.*$/) { + doc_type = SECTION_DOC + name_found = 1 + } else if (tolower(doc_name) ~ /^cairo_[a-z0-9_]*:$/) { + doc_type = PUBLIC_DOC + name_found = 0 + real_name = substr(doc_name, 1, length(doc_name) - 1) + } else if (tolower(doc_name) ~ /^_[a-z0-9_]*:$/) { + doc_type = PRIVATE_DOC + name_found = 0 + real_name = substr(doc_name, 1, length(doc_name) - 1) + } else { + log_error("invalid doc id (should be 'cairo_...:')") + name_found = 1 + } + } +} + +!in_doc { + regex = "(^|[ \\t\\*])" real_name "([ ;()]|$)" + if ($0 ~ regex) + name_found = 1 +} + +/^ \* Since: ([0-9]*.[0-9]*|TBD)$/ { + if (doc_has_since != 0) { + log_error("Duplicate 'Since' field") + } + doc_has_since = doc_line +} + +/^ \*\*\// { + if (doc_type == PUBLIC_DOC) { + if (!doc_has_since) { + # private types can start with cairo_ + if (doc_name ~ /^cairo_.*_t:$/) + log_warning("missing 'Since' field (is it a private type?)") + else + log_error("missing 'Since' field") + } else if (doc_has_since != doc_line - 1) + log_warning("misplaced 'Since' field (should be right before the end of the comment)") + } else { + if (doc_has_since) + log_warning("'Since' field in non-public element") + } + + in_doc = 0 + doc_has_since = 0 + doc_type = 0 +} + +/\*\// { + if (in_doc) { + in_doc = 0 + log_error("documentation comment not closed with **/") + } +} + +END { + if (!name_found) + log_warning("not found") +} diff --git a/local/recipes/libs/cairo/source/src/check-doc-syntax.sh b/local/recipes/libs/cairo/source/src/check-doc-syntax.sh new file mode 100755 index 0000000000..57bbc91fdc --- /dev/null +++ b/local/recipes/libs/cairo/source/src/check-doc-syntax.sh @@ -0,0 +1,82 @@ +#!/bin/sh + +LC_ALL=C +export LC_ALL + +if grep --version 2>/dev/null | grep GNU >/dev/null; then + : +else + echo "GNU grep not found; skipping test" + exit 0 +fi + +test -z "$srcdir" && srcdir=. +stat=0 + +echo Checking documentation for incorrect syntax + +cd "$srcdir" + +if test "x$SGML_DOCS" = x; then + FILES=$all_cairo_files + if test "x$FILES" = x; then + FILES=`find . -name 'cairo*.h' -or -name 'cairo*.c' -or -name 'cairo*.cpp'` + fi +fi + +enum_regexp="\([^%@']\|^\)\<\(FALSE\|TRUE\|NULL\|CAIRO_[0-9A-Z_]*\)\($\|[^(A-Za-z0-9_]\)" +if test "x$SGML_DOCS" = x; then + enum_regexp='^[^:]*:[/ ][*]\(\|[ \t].*\)'$enum_regexp\($\|[^:]\) +fi +if echo $FILES | xargs grep . /dev/null | sed -e '//,/<\/programlisting>/d' -e '/\|\[/,/\]\|/d' | grep "$enum_regexp" | grep -v '#####'; then + stat=1 + echo Error: some macros in the docs are not prefixed by percent sign. + echo Fix this by searching for the following regexp in the above files: + echo " '$enum_regexp'" +fi >&2 + +type_regexp="\( .*[^#']\| \|^\)\\($\|[^:]$\|[^:].\)" +if test "x$SGML_DOCS" = x; then + type_regexp='^[^:]*:[/ ][*]'$type_regexp +else + type_regexp='\(.'$type_regexp'\)\|\('$type_regexp'.\)' +fi + +if echo $FILES | xargs grep . /dev/null | sed -e '//,/<\/programlisting>/d' -e '/\|\[/,/\]\|/d' | grep -v "@Title" | grep "$type_regexp" | grep -v '#####'; then + stat=1 + echo Error: some type names in the docs are not prefixed by hash sign, + echo neither are the only token in the doc line followed by colon. + echo Fix this by searching for the following regexp in the above files: + echo " '$type_regexp'" +fi >&2 + +func_regexp="\([^#']\|^\)\<\(cairo_[][<>/0-9a-z_]*\>[^][<>(]\)" +if test "x$SGML_DOCS" = x; then + func_regexp='^[^:]*:[/ ][*]\(\|[ \t].*\)'$func_regexp +fi + +# We need to filter out gtk-doc markup errors for program listings. +if echo $FILES | xargs grep . /dev/null | sed -e '//,/<\/programlisting>/d' -e '/\|\[/,/\]\|/d' | grep "$func_regexp" | grep -v '^[^:]*: [*] [a-z_0-9]*:$' | grep -v '#####'; then + stat=1 + echo Error: some function names in the docs are not followed by parentheses. + echo Fix this by searching for the following regexp in the above files: + echo " '$func_regexp'" +fi >&2 + +note_regexp='\' +if echo $FILES | xargs grep "$note_regexp" /dev/null; then + stat=1 + echo Error: some source files contain the string 'NOTE'. + echo Be civil and replace it by 'Note' please. +fi >&2 + +# Only run the syntax checker on the source files (not doc/) +if test -e ./check-doc-syntax.awk; then + if echo $FILES | xargs awk -f ./check-doc-syntax.awk ; then + : + else + stat=1 + fi >&2 +fi + +exit $stat diff --git a/local/recipes/libs/cairo/source/src/check-headers.sh b/local/recipes/libs/cairo/source/src/check-headers.sh new file mode 100755 index 0000000000..b4f14571d8 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/check-headers.sh @@ -0,0 +1,27 @@ +#!/bin/sh + +LC_ALL=C +export LC_ALL + +test -z "$srcdir" && srcdir=. +stat=0 + +echo Checking public headers for missing cairo_public decorators + +cd "$srcdir" +FILES=$all_cairo_headers +if test "x$FILES" = x; then + FILES=`find . -name 'cairo*.h' ! -name '*-private.h' ! -name 'cairoint.h' ! -name '*-inline.h'` +fi + +grep -B 1 '^cairo_.*[ ]\+(' /dev/null $FILES | +awk ' +/^--$/ { context=""; public=0; next; } +/:cairo_.*[ ]+\(/ { if (!public) {print context; print; print "--";} next; } +/-cairo_public.*[ ]/ {public=1;} +{ context=$0; } +' | +sed 's/[.]h-/.h:/' | +grep . >&2 && stat=1 + +exit $stat diff --git a/local/recipes/libs/cairo/source/src/check-preprocessor-syntax.sh b/local/recipes/libs/cairo/source/src/check-preprocessor-syntax.sh new file mode 100755 index 0000000000..fa0fa715ff --- /dev/null +++ b/local/recipes/libs/cairo/source/src/check-preprocessor-syntax.sh @@ -0,0 +1,59 @@ +#!/bin/sh + +LC_ALL=C +export LC_ALL + +test -z "$srcdir" && srcdir=. +cd "$srcdir" +stat=0 + + +HEADERS=$all_cairo_headers +test "x$HEADERS" = x && HEADERS=`find . -name 'cairo*.h' ! -name 'cairo*-private.h' ! -name 'cairo*-inline.h' ! -name 'cairoint.h'` + +PRIVATE=$all_cairo_private +test "x$PRIVATE" = x && PRIVATE=`find . -name 'cairo*-private.h' -or -name 'cairo*-inline.h' -or -name 'cairoint.h'` + +SOURCES=$all_cairo_sources +test "x$SOURCES" = x && SOURCES=`find . -name 'cairo*.c' -or -name 'cairo*.cpp'` + +ALL="/dev/null $HEADERS $PRIVATE $SOURCES" + +echo 'Checking that public header files #include "cairo.h" first (or none)' + +for x in $HEADERS; do + grep '#.*\' "$x" /dev/null | head -n 1 +done | +grep -v '"cairo[.]h"' | +grep -v 'cairo[.]h:' | +grep . >&2 && stat=1 + + +echo 'Checking that private header files #include "some cairo header" first (or none)' + +for x in $PRIVATE; do + grep '#.*\' "$x" /dev/null | head -n 1 +done | +grep -v '"cairo.*[.]h"' | +grep -v 'cairoint[.]h:' | +grep . >&2 && stat=1 + + +echo 'Checking that source files #include "cairoint.h" first (or none)' + +for x in $SOURCES; do + grep '#.*\' "$x" /dev/null | head -n 1 +done | +grep -v '"cairoint[.]h"' | +grep . >&2 && stat=1 + + +echo 'Checking that there is no #include ' +grep '^[^*]#.*\.*<.*cairo' $ALL >&2 && stat=1 + + +echo 'Checking that feature conditionals are used with #if only (not #ifdef)' +grep '#ifdef CAIRO_HAS_' $ALL && stat=1 +grep '#if.*defined[ ]*(CAIRO_HAS_' $ALL && stat=1 + +exit $stat diff --git a/local/recipes/libs/cairo/source/src/meson.build b/local/recipes/libs/cairo/source/src/meson.build new file mode 100644 index 0000000000..ac06ac61a0 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/meson.build @@ -0,0 +1,287 @@ +cairo_sources = [ + 'cairo-analysis-surface.c', + 'cairo-arc.c', + 'cairo-array.c', + 'cairo-atomic.c', + 'cairo-base64-stream.c', + 'cairo-base85-stream.c', + 'cairo-bentley-ottmann-rectangular.c', + 'cairo-bentley-ottmann-rectilinear.c', + 'cairo-bentley-ottmann.c', + 'cairo-botor-scan-converter.c', + 'cairo-boxes-intersect.c', + 'cairo-boxes.c', + 'cairo-cache.c', + 'cairo-clip-boxes.c', + 'cairo-clip-polygon.c', + 'cairo-clip-region.c', + 'cairo-clip-surface.c', + 'cairo-clip-tor-scan-converter.c', + 'cairo-clip.c', + 'cairo-color.c', + 'cairo-composite-rectangles.c', + 'cairo-compositor.c', + 'cairo-contour.c', + 'cairo-damage.c', + 'cairo-debug.c', + 'cairo-default-context.c', + 'cairo-device.c', + 'cairo-error.c', + 'cairo-fallback-compositor.c', + 'cairo-fixed.c', + 'cairo-font-face-twin-data.c', + 'cairo-font-face-twin.c', + 'cairo-font-face.c', + 'cairo-font-options.c', + 'cairo-freed-pool.c', + 'cairo-freelist.c', + 'cairo-gstate.c', + 'cairo-hash.c', + 'cairo-hull.c', + 'cairo-image-compositor.c', + 'cairo-image-info.c', + 'cairo-image-source.c', + 'cairo-image-surface.c', + 'cairo-line.c', + 'cairo-lzw.c', + 'cairo-mask-compositor.c', + 'cairo-matrix.c', + 'cairo-mempool.c', + 'cairo-mesh-pattern-rasterizer.c', + 'cairo-misc.c', + 'cairo-mono-scan-converter.c', + 'cairo-mutex.c', + 'cairo-no-compositor.c', + 'cairo-observer.c', + 'cairo-output-stream.c', + 'cairo-paginated-surface.c', + 'cairo-path-bounds.c', + 'cairo-path-fill.c', + 'cairo-path-fixed.c', + 'cairo-path-in-fill.c', + 'cairo-path-stroke-boxes.c', + 'cairo-path-stroke-polygon.c', + 'cairo-path-stroke-traps.c', + 'cairo-path-stroke-tristrip.c', + 'cairo-path-stroke.c', + 'cairo-path.c', + 'cairo-pattern.c', + 'cairo-pen.c', + 'cairo-polygon-intersect.c', + 'cairo-polygon-reduce.c', + 'cairo-polygon.c', + 'cairo-raster-source-pattern.c', + 'cairo-recording-surface.c', + 'cairo-rectangle.c', + 'cairo-rectangular-scan-converter.c', + 'cairo-region.c', + 'cairo-rtree.c', + 'cairo-scaled-font.c', + 'cairo-shape-mask-compositor.c', + 'cairo-slope.c', + 'cairo-spans-compositor.c', + 'cairo-spans.c', + 'cairo-spline.c', + 'cairo-stroke-dash.c', + 'cairo-stroke-style.c', + 'cairo-surface-clipper.c', + 'cairo-surface-fallback.c', + 'cairo-surface-observer.c', + 'cairo-surface-offset.c', + 'cairo-surface-snapshot.c', + 'cairo-surface-subsurface.c', + 'cairo-surface-wrapper.c', + 'cairo-surface.c', + 'cairo-time.c', + 'cairo-tor-scan-converter.c', + 'cairo-tor22-scan-converter.c', + 'cairo-toy-font-face.c', + 'cairo-traps-compositor.c', + 'cairo-traps.c', + 'cairo-tristrip.c', + 'cairo-unicode.c', + 'cairo-user-font.c', + 'cairo-version.c', + 'cairo-wideint.c', + 'cairo.c', + 'cairo-cff-subset.c', + 'cairo-scaled-font-subsets.c', + 'cairo-truetype-subset.c', + 'cairo-type1-fallback.c', + 'cairo-type1-glyph-names.c', + 'cairo-type1-subset.c', + 'cairo-type3-glyph-surface.c', + 'cairo-pdf-operators.c', + 'cairo-pdf-shading.c', + 'cairo-tag-attributes.c', + 'cairo-tag-stack.c', + 'cairo-deflate-stream.c', +] + +cairo_headers = [ + 'cairo.h', + 'cairo-version.h', + 'cairo-deprecated.h', +] + +cairo_feature_sources = { + 'cairo-png': [ + 'cairo-png.c', + ], + 'cairo-ft': [ + 'cairo-ft-font.c', + 'cairo-colr-glyph-render.c', + 'cairo-svg-glyph-render.c' + ], + + 'cairo-xlib': [ + 'cairo-xlib-display.c', + 'cairo-xlib-core-compositor.c', + 'cairo-xlib-fallback-compositor.c', + 'cairo-xlib-render-compositor.c', + 'cairo-xlib-screen.c', + 'cairo-xlib-source.c', + 'cairo-xlib-surface.c', + 'cairo-xlib-surface-shm.c', + 'cairo-xlib-visual.c', + 'cairo-xlib-xcb-surface.c', + ], + 'cairo-xcb': [ + 'cairo-xcb-connection.c', + 'cairo-xcb-connection-core.c', + 'cairo-xcb-connection-render.c', + 'cairo-xcb-connection-shm.c', + 'cairo-xcb-screen.c', + 'cairo-xcb-shm.c', + 'cairo-xcb-surface.c', + 'cairo-xcb-surface-core.c', + 'cairo-xcb-surface-render.c', + 'cairo-xcb-resources.c', + ], + 'cairo-quartz': [ + 'cairo-quartz-surface.c', + ], + 'cairo-quartz-image': [ + 'cairo-quartz-image-surface.c', + ], + 'cairo-quartz-font': [ + 'cairo-quartz-font.c', + ], + 'cairo-win32': [ + 'win32/cairo-win32-debug.c', + 'win32/cairo-win32-device.c', + 'win32/cairo-win32-gdi-compositor.c', + 'win32/cairo-win32-system.c', + 'win32/cairo-win32-surface.c', + 'win32/cairo-win32-display-surface.c', + 'win32/cairo-win32-printing-surface.c', + ], + 'cairo-win32-font': [ + 'win32/cairo-win32-font.c', + ], + 'cairo-dwrite-font': [ + 'win32/cairo-dwrite-font.cpp', + ], + 'cairo-script': [ + 'cairo-script-surface.c', + ], + 'cairo-ps': [ + 'cairo-ps-surface.c', + ], + 'cairo-pdf': [ + 'cairo-pdf-surface.c', + 'cairo-pdf-interchange.c', + ], + 'cairo-svg': [ + 'cairo-svg-surface.c', + ], + 'cairo-tee': [ + 'cairo-tee-surface.c', + ], +} + +cairo_feature_headers = { + 'cairo-ps': ['cairo-ps.h'], + 'cairo-pdf': ['cairo-pdf.h'], + 'cairo-svg': ['cairo-svg.h'], + 'cairo-ft': ['cairo-ft.h'], + 'cairo-xlib': ['cairo-xlib.h'], + 'cairo-xlib-xrender': ['cairo-xlib-xrender.h'], + 'cairo-xcb': ['cairo-xcb.h'], + 'cairo-quartz': ['cairo-quartz.h'], + 'cairo-quartz-image': ['cairo-quartz-image.h'], + 'cairo-win32': ['cairo-win32.h'], + 'cairo-dwrite-font': ['cairo-dwrite.h'], + 'cairo-gl': ['cairo-gl.h'], + 'cairo-script': ['cairo-script.h'], + 'cairo-tee': ['cairo-tee.h'], + 'cairo-vg': ['cairo-vg.h'], +} + +cairo_no_warn_c_args = cc.get_supported_arguments([ + '-Wno-attributes', + '-Wno-unused-but-set-variable', + '-Wno-missing-field-initializers', + '-Wno-unused-parameter', + '-Wno-long-long', +]) + +foreach feature: built_features + source_key = feature.get('source-key', feature.get('name')) + cairo_sources += cairo_feature_sources.get(source_key, []) + cairo_headers += cairo_feature_headers.get(source_key, []) +endforeach + +incsrc = include_directories('.') + +cairo_static_args = [] +if get_option('default_library') == 'static' and host_machine.system() == 'windows' + cairo_static_args += ['-DCAIRO_WIN32_STATIC_BUILD'] + add_project_arguments('-DCAIRO_WIN32_STATIC_BUILD', language: 'c') +endif + +libcairo = library('cairo', cairo_sources, + dependencies: deps, + c_args: cairo_no_warn_c_args + pthread_c_args + ['-DCAIRO_COMPILATION'], + cpp_args: cairo_no_warn_c_args + pthread_c_args + ['-DCAIRO_COMPILATION'], + link_args: extra_link_args, + gnu_symbol_visibility: 'hidden', + soversion: cairo_version_sonum, + version: cairo_libversion, + install: true, + include_directories: incbase, +) + +cairo_features_file = configure_file(output: 'cairo-features.h', configuration: feature_conf) +cairo_headers += [cairo_features_file] + +libcairo_dep = declare_dependency(link_with: libcairo, + dependencies: deps, + include_directories: incsrc, + compile_args: cairo_static_args, +) + +pkgmod.generate(libcairo, + description: 'Multi-platform 2D graphics library', + subdirs: [meson.project_name()], +) + +meson.override_dependency('cairo', libcairo_dep) + +install_headers(cairo_headers, subdir: 'cairo') + +shell = find_program('sh', required: false) +if shell.found() + test_scripts = [ + 'check-doc-syntax.sh', + 'check-headers.sh', + 'check-preprocessor-syntax.sh', + ] + + foreach test_script: test_scripts + test(test_script, shell, + args: [test_script], + suite: ['fast', 'lint'], + workdir: meson.current_source_dir()) + endforeach +endif diff --git a/local/recipes/libs/cairo/source/src/test-base-compositor-surface.c b/local/recipes/libs/cairo/source/src/test-base-compositor-surface.c new file mode 100644 index 0000000000..00e3d0c561 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/test-base-compositor-surface.c @@ -0,0 +1,825 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2002 University of Southern California + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Joonas Pihlaja + * Chris Wilson + */ + +#include "cairoint.h" + +#include "test-compositor-surface-private.h" + +#include "cairo-clip-private.h" +#include "cairo-composite-rectangles-private.h" +#include "cairo-compositor-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-region-private.h" +#include "cairo-traps-private.h" + +/* The intention is that this is a surface that just works, and most + * important of all does not try to be clever! + */ + +typedef cairo_int_status_t +(*draw_func_t) (cairo_image_surface_t *dst, + void *closure, + cairo_operator_t op, + const cairo_pattern_t *pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents); + +static pixman_op_t +_pixman_operator (cairo_operator_t op) +{ + switch ((int) op) { + case CAIRO_OPERATOR_CLEAR: + return PIXMAN_OP_CLEAR; + + case CAIRO_OPERATOR_SOURCE: + return PIXMAN_OP_SRC; + case CAIRO_OPERATOR_OVER: + return PIXMAN_OP_OVER; + case CAIRO_OPERATOR_IN: + return PIXMAN_OP_IN; + case CAIRO_OPERATOR_OUT: + return PIXMAN_OP_OUT; + case CAIRO_OPERATOR_ATOP: + return PIXMAN_OP_ATOP; + + case CAIRO_OPERATOR_DEST: + return PIXMAN_OP_DST; + case CAIRO_OPERATOR_DEST_OVER: + return PIXMAN_OP_OVER_REVERSE; + case CAIRO_OPERATOR_DEST_IN: + return PIXMAN_OP_IN_REVERSE; + case CAIRO_OPERATOR_DEST_OUT: + return PIXMAN_OP_OUT_REVERSE; + case CAIRO_OPERATOR_DEST_ATOP: + return PIXMAN_OP_ATOP_REVERSE; + + case CAIRO_OPERATOR_XOR: + return PIXMAN_OP_XOR; + case CAIRO_OPERATOR_ADD: + return PIXMAN_OP_ADD; + case CAIRO_OPERATOR_SATURATE: + return PIXMAN_OP_SATURATE; + + case CAIRO_OPERATOR_MULTIPLY: + return PIXMAN_OP_MULTIPLY; + case CAIRO_OPERATOR_SCREEN: + return PIXMAN_OP_SCREEN; + case CAIRO_OPERATOR_OVERLAY: + return PIXMAN_OP_OVERLAY; + case CAIRO_OPERATOR_DARKEN: + return PIXMAN_OP_DARKEN; + case CAIRO_OPERATOR_LIGHTEN: + return PIXMAN_OP_LIGHTEN; + case CAIRO_OPERATOR_COLOR_DODGE: + return PIXMAN_OP_COLOR_DODGE; + case CAIRO_OPERATOR_COLOR_BURN: + return PIXMAN_OP_COLOR_BURN; + case CAIRO_OPERATOR_HARD_LIGHT: + return PIXMAN_OP_HARD_LIGHT; + case CAIRO_OPERATOR_SOFT_LIGHT: + return PIXMAN_OP_SOFT_LIGHT; + case CAIRO_OPERATOR_DIFFERENCE: + return PIXMAN_OP_DIFFERENCE; + case CAIRO_OPERATOR_EXCLUSION: + return PIXMAN_OP_EXCLUSION; + case CAIRO_OPERATOR_HSL_HUE: + return PIXMAN_OP_HSL_HUE; + case CAIRO_OPERATOR_HSL_SATURATION: + return PIXMAN_OP_HSL_SATURATION; + case CAIRO_OPERATOR_HSL_COLOR: + return PIXMAN_OP_HSL_COLOR; + case CAIRO_OPERATOR_HSL_LUMINOSITY: + return PIXMAN_OP_HSL_LUMINOSITY; + + default: + ASSERT_NOT_REACHED; + return PIXMAN_OP_OVER; + } +} + +static cairo_image_surface_t * +create_composite_mask (cairo_image_surface_t *dst, + void *draw_closure, + draw_func_t draw_func, + const cairo_composite_rectangles_t *extents) +{ + cairo_image_surface_t *surface; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + surface = (cairo_image_surface_t *) + _cairo_image_surface_create_with_pixman_format (NULL, PIXMAN_a8, + extents->bounded.width, + extents->bounded.height, + 0); + if (unlikely (surface->base.status)) + return surface; + + status = draw_func (surface, draw_closure, + CAIRO_OPERATOR_ADD, &_cairo_pattern_white.base, + extents->bounded.x, extents->bounded.y, + &extents->bounded); + if (unlikely (status)) + goto error; + + status = _cairo_clip_combine_with_surface (extents->clip, + &surface->base, + extents->bounded.x, + extents->bounded.y); + if (unlikely (status)) + goto error; + + return surface; + +error: + cairo_surface_destroy (&surface->base); + return (cairo_image_surface_t *)_cairo_surface_create_in_error (status); +} + +/* Handles compositing with a clip surface when the operator allows + * us to combine the clip with the mask + */ +static cairo_status_t +clip_and_composite_with_mask (const cairo_composite_rectangles_t*extents, + draw_func_t draw_func, + void *draw_closure) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *)extents->surface; + cairo_image_surface_t *mask; + pixman_image_t *src; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + int src_x, src_y; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + mask = create_composite_mask (dst, draw_closure, draw_func, extents); + if (unlikely (mask->base.status)) + return mask->base.status; + + src = _pixman_image_for_pattern (dst, + &extents->source_pattern.base, FALSE, + &extents->bounded, + &extents->source_sample_area, + &src_x, &src_y); + if (unlikely (src == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto error; + } + + pixman_image_composite32 (_pixman_operator (extents->op), + src, mask->pixman_image, dst->pixman_image, + extents->bounded.x + src_x, + extents->bounded.y + src_y, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + + pixman_image_unref (src); +error: + cairo_surface_destroy (&mask->base); + return status; +} + +/* Handles compositing with a clip surface when we have to do the operation + * in two pieces and combine them together. + */ +static cairo_status_t +clip_and_composite_combine (const cairo_composite_rectangles_t*extents, + draw_func_t draw_func, + void *draw_closure) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *)extents->surface; + cairo_image_surface_t *tmp, *clip; + int clip_x, clip_y; + cairo_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + tmp = (cairo_image_surface_t *) + _cairo_image_surface_create_with_pixman_format (NULL, + dst->pixman_format, + extents->bounded.width, + extents->bounded.height, + 0); + if (unlikely (tmp->base.status)) + return tmp->base.status; + + pixman_image_composite32 (PIXMAN_OP_SRC, + dst->pixman_image, NULL, tmp->pixman_image, + extents->bounded.x, extents->bounded.y, + 0, 0, + 0, 0, + extents->bounded.width, extents->bounded.height); + + status = draw_func (tmp, draw_closure, + extents->op, &extents->source_pattern.base, + extents->bounded.x, extents->bounded.y, + &extents->bounded); + if (unlikely (status)) + goto error; + + clip = (cairo_image_surface_t *) + _cairo_clip_get_surface (extents->clip, &dst->base, &clip_x, &clip_y); + if (unlikely (clip->base.status)) + goto error; + + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + clip->pixman_image, NULL, dst->pixman_image, + extents->bounded.x - clip_x, extents->bounded.y - clip_y, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + pixman_image_composite32 (PIXMAN_OP_ADD, + tmp->pixman_image, clip->pixman_image, dst->pixman_image, + 0, 0, + extents->bounded.x - clip_x, extents->bounded.y - clip_y, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + + cairo_surface_destroy (&clip->base); + + error: + cairo_surface_destroy (&tmp->base); + + return status; +} + +/* Handles compositing for %CAIRO_OPERATOR_SOURCE, which is special; it's + * defined as (src IN mask IN clip) ADD (dst OUT (mask IN clip)) + */ +static cairo_status_t +clip_and_composite_source (const cairo_composite_rectangles_t *extents, + draw_func_t draw_func, + void *draw_closure) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *)extents->surface; + cairo_image_surface_t *mask; + pixman_image_t *src; + int src_x, src_y; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + mask = create_composite_mask (dst, draw_closure, draw_func, extents); + if (unlikely (mask->base.status)) + return mask->base.status; + + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + mask->pixman_image, NULL, dst->pixman_image, + 0, 0, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + + src = _pixman_image_for_pattern (dst, + &extents->source_pattern.base, FALSE, + &extents->bounded, + &extents->source_sample_area, + &src_x, &src_y); + if (unlikely (src == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto error; + } + + pixman_image_composite32 (PIXMAN_OP_ADD, + src, mask->pixman_image, dst->pixman_image, + extents->bounded.x + src_x, extents->bounded.y + src_y, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + + pixman_image_unref (src); + +error: + cairo_surface_destroy (&mask->base); + return status; +} + +static cairo_status_t +fixup_unbounded (const cairo_composite_rectangles_t *extents) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *)extents->surface; + pixman_image_t *mask; + int mask_x, mask_y; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (! _cairo_clip_is_region (extents->clip)) { + cairo_image_surface_t *clip; + + clip = (cairo_image_surface_t *) + _cairo_clip_get_surface (extents->clip, &dst->base, + &mask_x, &mask_y); + if (unlikely (clip->base.status)) + return clip->base.status; + + mask = pixman_image_ref (clip->pixman_image); + cairo_surface_destroy (&clip->base); + } else { + mask_x = mask_y = 0; + mask = _pixman_image_for_color (CAIRO_COLOR_WHITE); + if (unlikely (mask == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + /* top */ + if (extents->bounded.y != extents->unbounded.y) { + int x = extents->unbounded.x; + int y = extents->unbounded.y; + int width = extents->unbounded.width; + int height = extents->bounded.y - y; + + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + mask, NULL, dst->pixman_image, + x - mask_x, y - mask_y, + 0, 0, + x, y, + width, height); + } + + /* left */ + if (extents->bounded.x != extents->unbounded.x) { + int x = extents->unbounded.x; + int y = extents->bounded.y; + int width = extents->bounded.x - x; + int height = extents->bounded.height; + + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + mask, NULL, dst->pixman_image, + x - mask_x, y - mask_y, + 0, 0, + x, y, + width, height); + } + + /* right */ + if (extents->bounded.x + extents->bounded.width != extents->unbounded.x + extents->unbounded.width) { + int x = extents->bounded.x + extents->bounded.width; + int y = extents->bounded.y; + int width = extents->unbounded.x + extents->unbounded.width - x; + int height = extents->bounded.height; + + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + mask, NULL, dst->pixman_image, + x - mask_x, y - mask_y, + 0, 0, + x, y, + width, height); + } + + /* bottom */ + if (extents->bounded.y + extents->bounded.height != extents->unbounded.y + extents->unbounded.height) { + int x = extents->unbounded.x; + int y = extents->bounded.y + extents->bounded.height; + int width = extents->unbounded.width; + int height = extents->unbounded.y + extents->unbounded.height - y; + + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + mask, NULL, dst->pixman_image, + x - mask_x, y - mask_y, + 0, 0, + x, y, + width, height); + } + + pixman_image_unref (mask); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +set_clip_region (cairo_composite_rectangles_t *extents) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *) extents->surface; + cairo_region_t *region = _cairo_clip_get_region (extents->clip); + pixman_region32_t *rgn = region ? ®ion->rgn : NULL; + if (! pixman_image_set_clip_region32 (dst->pixman_image, rgn)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +clip_and_composite (cairo_composite_rectangles_t *extents, + draw_func_t draw_func, + void *draw_closure) +{ + cairo_status_t status; + + status = set_clip_region (extents); + if (unlikely (status)) + return status; + + if (extents->op == CAIRO_OPERATOR_SOURCE) { + status = clip_and_composite_source (extents, draw_func, draw_closure); + } else { + if (extents->op == CAIRO_OPERATOR_CLEAR) { + extents->source_pattern.solid = _cairo_pattern_white; + extents->op = CAIRO_OPERATOR_DEST_OUT; + } + if (! _cairo_clip_is_region (extents->clip)) { + if (extents->is_bounded) + status = clip_and_composite_with_mask (extents, draw_func, draw_closure); + else + status = clip_and_composite_combine (extents, draw_func, draw_closure); + } else { + status = draw_func ((cairo_image_surface_t *) extents->surface, + draw_closure, + extents->op, + &extents->source_pattern.base, + 0, 0, + &extents->bounded); + } + } + + if (status == CAIRO_STATUS_SUCCESS && ! extents->is_bounded) + status = fixup_unbounded (extents); + + return status; +} + +/* high-level compositor interface */ + +static cairo_int_status_t +composite_paint (cairo_image_surface_t *dst, + void *closure, + cairo_operator_t op, + const cairo_pattern_t *pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents) +{ + cairo_rectangle_int_t sample; + pixman_image_t *src; + int src_x, src_y; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + _cairo_pattern_sampled_area (pattern, extents, &sample); + src = _pixman_image_for_pattern (dst, + pattern, FALSE, + extents, &sample, + &src_x, &src_y); + if (unlikely (src == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + TRACE ((stderr, "%s: src=(%d, %d), dst=(%d, %d) size=%dx%d\n", __FUNCTION__, + extents->x + src_x, extents->y + src_y, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height)); + + pixman_image_composite32 (_pixman_operator (op), + src, NULL, dst->pixman_image, + extents->x + src_x, extents->y + src_y, + 0, 0, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + + pixman_image_unref (src); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +base_compositor_paint (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents) +{ + TRACE ((stderr, "%s\n", __FUNCTION__)); + return clip_and_composite (extents, composite_paint, NULL); +} + +static cairo_int_status_t +composite_mask (cairo_image_surface_t *dst, + void *closure, + cairo_operator_t op, + const cairo_pattern_t *pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents) +{ + cairo_rectangle_int_t sample; + pixman_image_t *src, *mask; + int src_x, src_y; + int mask_x, mask_y; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + _cairo_pattern_sampled_area (pattern, extents, &sample); + src = _pixman_image_for_pattern (dst, pattern, FALSE, + extents, &sample, + &src_x, &src_y); + if (unlikely (src == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_pattern_sampled_area (closure, extents, &sample); + mask = _pixman_image_for_pattern (dst, closure, TRUE, + extents, &sample, + &mask_x, &mask_y); + if (unlikely (mask == NULL)) { + pixman_image_unref (src); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + pixman_image_composite32 (_pixman_operator (op), + src, mask, dst->pixman_image, + extents->x + src_x, extents->y + src_y, + extents->x + mask_x, extents->y + mask_y, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + + pixman_image_unref (mask); + pixman_image_unref (src); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +base_compositor_mask (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents) +{ + TRACE ((stderr, "%s\n", __FUNCTION__)); + return clip_and_composite (extents, composite_mask, &extents->mask_pattern.base); +} + +typedef struct { + cairo_traps_t traps; + cairo_antialias_t antialias; +} composite_traps_info_t; + +static cairo_int_status_t +composite_traps (cairo_image_surface_t *dst, + void *closure, + cairo_operator_t op, + const cairo_pattern_t *pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents) +{ + composite_traps_info_t *info = closure; + cairo_rectangle_int_t sample; + pixman_image_t *src, *mask; + int src_x, src_y; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + _cairo_pattern_sampled_area (pattern, extents, &sample); + src = _pixman_image_for_pattern (dst, pattern, FALSE, + extents, &sample, + &src_x, &src_y); + if (unlikely (src == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + mask = pixman_image_create_bits (info->antialias == CAIRO_ANTIALIAS_NONE ? PIXMAN_a1 : PIXMAN_a8, + extents->width, extents->height, + NULL, 0); + if (unlikely (mask == NULL)) { + pixman_image_unref (src); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + _pixman_image_add_traps (mask, extents->x, extents->y, &info->traps); + pixman_image_composite32 (_pixman_operator (op), + src, mask, dst->pixman_image, + extents->x + src_x - dst_x, extents->y + src_y - dst_y, + 0, 0, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + + pixman_image_unref (mask); + pixman_image_unref (src); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +trim_extents_to_traps (cairo_composite_rectangles_t *extents, + cairo_traps_t *traps) +{ + cairo_box_t box; + + /* X trims the affected area to the extents of the trapezoids, so + * we need to compensate when fixing up the unbounded area. + */ + _cairo_traps_extents (traps, &box); + return _cairo_composite_rectangles_intersect_mask_extents (extents, &box); +} + +static cairo_int_status_t +base_compositor_stroke (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias) +{ + composite_traps_info_t info; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + info.antialias = antialias; + _cairo_traps_init_with_clip (&info.traps, extents->clip); + status = _cairo_path_fixed_stroke_polygon_to_traps (path, style, + ctm, ctm_inverse, + tolerance, + &info.traps); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = trim_extents_to_traps (extents, &info.traps); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = clip_and_composite (extents, composite_traps, &info); + _cairo_traps_fini (&info.traps); + + return status; +} + +static cairo_int_status_t +base_compositor_fill (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + composite_traps_info_t info; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + info.antialias = antialias; + _cairo_traps_init_with_clip (&info.traps, extents->clip); + status = _cairo_path_fixed_fill_to_traps (path, + fill_rule, tolerance, + &info.traps); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = trim_extents_to_traps (extents, &info.traps); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = clip_and_composite (extents, composite_traps, &info); + _cairo_traps_fini (&info.traps); + + return status; +} + +static cairo_int_status_t +composite_glyphs (cairo_image_surface_t *dst, + void *closure, + cairo_operator_t op, + const cairo_pattern_t *pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents) +{ + cairo_composite_glyphs_info_t *info = closure; + pixman_image_t *mask; + cairo_status_t status; + int i; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + mask = pixman_image_create_bits (PIXMAN_a8, + extents->width, extents->height, + NULL, 0); + if (unlikely (mask == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = CAIRO_STATUS_SUCCESS; + _cairo_scaled_font_freeze_cache (info->font); + for (i = 0; i < info->num_glyphs; i++) { + cairo_image_surface_t *glyph_surface; + cairo_scaled_glyph_t *scaled_glyph; + unsigned long glyph_index = info->glyphs[i].index; + int x, y; + + status = _cairo_scaled_glyph_lookup (info->font, glyph_index, + CAIRO_SCALED_GLYPH_INFO_SURFACE, + NULL, /* foreground color */ + &scaled_glyph); + + if (unlikely (status)) + break; + + glyph_surface = scaled_glyph->surface; + if (glyph_surface->width && glyph_surface->height) { + /* round glyph locations to the nearest pixel */ + /* XXX: FRAGILE: We're ignoring device_transform scaling here. A bug? */ + x = _cairo_lround (info->glyphs[i].x - + glyph_surface->base.device_transform.x0); + y = _cairo_lround (info->glyphs[i].y - + glyph_surface->base.device_transform.y0); + + pixman_image_composite32 (PIXMAN_OP_ADD, + glyph_surface->pixman_image, NULL, mask, + 0, 0, + 0, 0, + x - extents->x, y - extents->y, + glyph_surface->width, + glyph_surface->height); + } + } + _cairo_scaled_font_thaw_cache (info->font); + + if (status == CAIRO_STATUS_SUCCESS) { + cairo_rectangle_int_t sample; + pixman_image_t *src; + int src_x, src_y; + + _cairo_pattern_sampled_area (pattern, extents, &sample); + src = _pixman_image_for_pattern (dst, pattern, FALSE, + extents, &sample, + &src_x, &src_y); + if (src != NULL) { + dst_x = extents->x - dst_x; + dst_y = extents->y - dst_y; + pixman_image_composite32 (_pixman_operator (op), + src, mask, dst->pixman_image, + src_x + dst_x, src_y + dst_y, + 0, 0, + dst_x, dst_y, + extents->width, extents->height); + pixman_image_unref (src); + } else + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + pixman_image_unref (mask); + + return status; +} + +static cairo_int_status_t +base_compositor_glyphs (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_bool_t overlap) +{ + cairo_composite_glyphs_info_t info; + + info.font = scaled_font; + info.glyphs = glyphs; + info.num_glyphs = num_glyphs; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + return clip_and_composite (extents, composite_glyphs, &info); +} + +static const cairo_compositor_t base_compositor = { + &__cairo_no_compositor, + + base_compositor_paint, + base_compositor_mask, + base_compositor_stroke, + base_compositor_fill, + base_compositor_glyphs, +}; + +cairo_surface_t * +_cairo_test_base_compositor_surface_create (cairo_content_t content, + int width, + int height) +{ + return test_compositor_surface_create (&base_compositor, + content, width, height); +} diff --git a/local/recipes/libs/cairo/source/src/test-compositor-surface-private.h b/local/recipes/libs/cairo/source/src/test-compositor-surface-private.h new file mode 100644 index 0000000000..491f241bac --- /dev/null +++ b/local/recipes/libs/cairo/source/src/test-compositor-surface-private.h @@ -0,0 +1,56 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Intel Corporation + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef TEST_COMPOSITOR_SURFACE_PRIVATE_H +#define TEST_COMPOSITOR_SURFACE_PRIVATE_H + +#include "cairo.h" + +#include "test-compositor-surface.h" + +#include "cairo-compiler-private.h" +#include "cairo-compositor-private.h" + +CAIRO_BEGIN_DECLS + +cairo_private cairo_surface_t * +test_compositor_surface_create (const cairo_compositor_t *compositor, + cairo_content_t content, + int width, + int height); + +CAIRO_END_DECLS + +#endif /* TEST_COMPOSITOR_SURFACE_PRIVATE H */ diff --git a/local/recipes/libs/cairo/source/src/test-compositor-surface.c b/local/recipes/libs/cairo/source/src/test-compositor-surface.c new file mode 100644 index 0000000000..4518f509c8 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/test-compositor-surface.c @@ -0,0 +1,265 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Intel Corporation + * + * Contributor(s): + * Chris Wilson + */ + +#include "cairoint.h" + +#include "test-compositor-surface-private.h" + +#include "cairo-compositor-private.h" +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-surface-backend-private.h" + +typedef struct _test_compositor_surface { + cairo_image_surface_t base; +} test_compositor_surface_t; + +static const cairo_surface_backend_t test_compositor_surface_backend; + +cairo_surface_t * +test_compositor_surface_create (const cairo_compositor_t *compositor, + cairo_content_t content, + int width, + int height) +{ + test_compositor_surface_t *surface; + pixman_image_t *pixman_image; + pixman_format_code_t pixman_format; + + switch (content) { + case CAIRO_CONTENT_ALPHA: + pixman_format = PIXMAN_a8; + break; + case CAIRO_CONTENT_COLOR: + pixman_format = PIXMAN_x8r8g8b8; + break; + case CAIRO_CONTENT_COLOR_ALPHA: + pixman_format = PIXMAN_a8r8g8b8; + break; + default: + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_CONTENT)); + } + + pixman_image = pixman_image_create_bits (pixman_format, width, height, + NULL, 0); + if (unlikely (pixman_image == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + surface = _cairo_calloc (sizeof (test_compositor_surface_t)); + if (unlikely (surface == NULL)) { + pixman_image_unref (pixman_image); + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + _cairo_surface_init (&surface->base.base, + &test_compositor_surface_backend, + NULL, /* device */ + content, + FALSE); /* is_vector */ + _cairo_image_surface_init (&surface->base, pixman_image, pixman_format); + + surface->base.compositor = compositor; + + return &surface->base.base; +} + +static cairo_surface_t * +test_compositor_surface_create_similar (void *abstract_surface, + cairo_content_t content, + int width, + int height) +{ + test_compositor_surface_t *surface = abstract_surface; + + return test_compositor_surface_create (surface->base.compositor, + content, width, height); +} + +static cairo_int_status_t +test_compositor_surface_paint (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + test_compositor_surface_t *surface = _surface; + return _cairo_compositor_paint (surface->base.compositor, + _surface, op, source, + clip); +} + +static cairo_int_status_t +test_compositor_surface_mask (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + test_compositor_surface_t *surface = _surface; + return _cairo_compositor_mask (surface->base.compositor, + _surface, op, source, mask, + clip); +} + +static cairo_int_status_t +test_compositor_surface_stroke (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + test_compositor_surface_t *surface = _surface; + if (antialias == CAIRO_ANTIALIAS_DEFAULT) + antialias = CAIRO_ANTIALIAS_BEST; + return _cairo_compositor_stroke (surface->base.compositor, + _surface, op, source, + path, style, ctm, ctm_inverse, + tolerance, antialias, + clip); +} + +static cairo_int_status_t +test_compositor_surface_fill (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + test_compositor_surface_t *surface = _surface; + if (antialias == CAIRO_ANTIALIAS_DEFAULT) + antialias = CAIRO_ANTIALIAS_BEST; + return _cairo_compositor_fill (surface->base.compositor, + _surface, op, source, + path, fill_rule, tolerance, antialias, + clip); +} + +static cairo_int_status_t +test_compositor_surface_glyphs (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + test_compositor_surface_t *surface = _surface; + return _cairo_compositor_glyphs (surface->base.compositor, + _surface, op, source, + glyphs, num_glyphs, scaled_font, + clip); +} + +static const cairo_surface_backend_t test_compositor_surface_backend = { + CAIRO_SURFACE_TYPE_IMAGE, + _cairo_image_surface_finish, + _cairo_default_context_create, + + test_compositor_surface_create_similar, + NULL, /* create similar image */ + _cairo_image_surface_map_to_image, + _cairo_image_surface_unmap_image, + + _cairo_image_surface_source, + _cairo_image_surface_acquire_source_image, + _cairo_image_surface_release_source_image, + _cairo_image_surface_snapshot, + + NULL, /* copy_page */ + NULL, /* show_page */ + + _cairo_image_surface_get_extents, + _cairo_image_surface_get_font_options, + + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + + test_compositor_surface_paint, + test_compositor_surface_mask, + test_compositor_surface_stroke, + test_compositor_surface_fill, + NULL, /* fill/stroke */ + test_compositor_surface_glyphs, +}; + +static const cairo_compositor_t * +get_fallback_compositor (void) +{ + return &_cairo_fallback_compositor; +} + +cairo_surface_t * +_cairo_test_fallback_compositor_surface_create (cairo_content_t content, + int width, + int height) +{ + return test_compositor_surface_create (get_fallback_compositor(), + content, width, height); +} + +cairo_surface_t * +_cairo_test_mask_compositor_surface_create (cairo_content_t content, + int width, + int height) +{ + return test_compositor_surface_create (_cairo_image_mask_compositor_get(), + content, width, height); +} + +cairo_surface_t * +_cairo_test_traps_compositor_surface_create (cairo_content_t content, + int width, + int height) +{ + return test_compositor_surface_create (_cairo_image_traps_compositor_get(), + content, width, height); +} + +cairo_surface_t * +_cairo_test_spans_compositor_surface_create (cairo_content_t content, + int width, + int height) +{ + return test_compositor_surface_create (_cairo_image_spans_compositor_get(), + content, width, height); +} diff --git a/local/recipes/libs/cairo/source/src/test-compositor-surface.h b/local/recipes/libs/cairo/source/src/test-compositor-surface.h new file mode 100644 index 0000000000..8d8af2d540 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/test-compositor-surface.h @@ -0,0 +1,71 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Intel Corporation + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef TEST_COMPOSITOR_SURFACE_H +#define TEST_COMPOSITOR_SURFACE_H + +#include "cairo.h" + +CAIRO_BEGIN_DECLS + +cairo_surface_t * +_cairo_test_fallback_compositor_surface_create (cairo_content_t content, + int width, + int height); + + +cairo_surface_t * +_cairo_test_mask_compositor_surface_create (cairo_content_t content, + int width, + int height); + +cairo_surface_t * +_cairo_test_traps_compositor_surface_create (cairo_content_t content, + int width, + int height); + +cairo_surface_t * +_cairo_test_spans_compositor_surface_create (cairo_content_t content, + int width, + int height); + +cairo_surface_t * +_cairo_test_base_compositor_surface_create (cairo_content_t content, + int width, + int height); + +CAIRO_END_DECLS + +#endif /* TEST_COMPOSITOR_SURFACE_H */ diff --git a/local/recipes/libs/cairo/source/src/test-null-compositor-surface.c b/local/recipes/libs/cairo/source/src/test-null-compositor-surface.c new file mode 100644 index 0000000000..ad2a35968e --- /dev/null +++ b/local/recipes/libs/cairo/source/src/test-null-compositor-surface.c @@ -0,0 +1,487 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Intel Corporation + * + * Contributor(s): + * Chris Wilson + */ + + +#include "cairoint.h" + +#include "test-null-compositor-surface.h" + +#include "cairo-compositor-private.h" +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-surface-backend-private.h" +#include "cairo-spans-compositor-private.h" +#include "cairo-spans-private.h" + +typedef struct _test_compositor_surface { + cairo_image_surface_t base; +} test_compositor_surface_t; + +static const cairo_surface_backend_t test_compositor_surface_backend; + +static cairo_surface_t * +test_compositor_surface_create (const cairo_compositor_t *compositor, + cairo_content_t content, + int width, + int height) +{ + test_compositor_surface_t *surface; + pixman_image_t *pixman_image; + pixman_format_code_t pixman_format; + + switch (content) { + case CAIRO_CONTENT_ALPHA: + pixman_format = PIXMAN_a8; + break; + case CAIRO_CONTENT_COLOR: + pixman_format = PIXMAN_x8r8g8b8; + break; + case CAIRO_CONTENT_COLOR_ALPHA: + pixman_format = PIXMAN_a8r8g8b8; + break; + default: + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_CONTENT)); + } + + pixman_image = pixman_image_create_bits (pixman_format, width, height, + NULL, 0); + if (unlikely (pixman_image == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + surface = _cairo_calloc (sizeof (test_compositor_surface_t)); + if (unlikely (surface == NULL)) { + pixman_image_unref (pixman_image); + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + _cairo_surface_init (&surface->base.base, + &test_compositor_surface_backend, + NULL, /* device */ + content, + FALSE); /* is_vector */ + _cairo_image_surface_init (&surface->base, pixman_image, pixman_format); + + surface->base.compositor = compositor; + + return &surface->base.base; +} + +static cairo_surface_t * +test_compositor_surface_create_similar (void *abstract_surface, + cairo_content_t content, + int width, + int height) +{ + test_compositor_surface_t *surface = abstract_surface; + + return test_compositor_surface_create (surface->base.compositor, + content, width, height); +} + +static cairo_int_status_t +test_compositor_surface_paint (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + test_compositor_surface_t *surface = _surface; + return _cairo_compositor_paint (surface->base.compositor, + _surface, op, source, + clip); +} + +static cairo_int_status_t +test_compositor_surface_mask (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + test_compositor_surface_t *surface = _surface; + return _cairo_compositor_mask (surface->base.compositor, + _surface, op, source, mask, + clip); +} + +static cairo_int_status_t +test_compositor_surface_stroke (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + test_compositor_surface_t *surface = _surface; + return _cairo_compositor_stroke (surface->base.compositor, + _surface, op, source, + path, style, ctm, ctm_inverse, + tolerance, antialias, + clip); +} + +static cairo_int_status_t +test_compositor_surface_fill (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + test_compositor_surface_t *surface = _surface; + return _cairo_compositor_fill (surface->base.compositor, + _surface, op, source, + path, fill_rule, tolerance, antialias, + clip); +} + +static cairo_int_status_t +test_compositor_surface_glyphs (void *_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + test_compositor_surface_t *surface = _surface; + return _cairo_compositor_glyphs (surface->base.compositor, + _surface, op, source, + glyphs, num_glyphs, scaled_font, + clip); +} + +static const cairo_surface_backend_t test_compositor_surface_backend = { + CAIRO_SURFACE_TYPE_IMAGE, + _cairo_image_surface_finish, + _cairo_default_context_create, + + test_compositor_surface_create_similar, + NULL, /* create similar image */ + _cairo_image_surface_map_to_image, + _cairo_image_surface_unmap_image, + + _cairo_image_surface_source, + _cairo_image_surface_acquire_source_image, + _cairo_image_surface_release_source_image, + NULL, /* snapshot */ + + NULL, /* copy_page */ + NULL, /* show_page */ + + _cairo_image_surface_get_extents, + _cairo_image_surface_get_font_options, + + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + + test_compositor_surface_paint, + test_compositor_surface_mask, + test_compositor_surface_stroke, + test_compositor_surface_fill, + NULL, /* fill/stroke */ + test_compositor_surface_glyphs, +}; + +static cairo_int_status_t +acquire (void *abstract_dst) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +release (void *abstract_dst) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +set_clip_region (void *_surface, + cairo_region_t *region) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_surface_t * +pattern_to_surface (cairo_surface_t *dst, + const cairo_pattern_t *pattern, + cairo_bool_t is_mask, + const cairo_rectangle_int_t *extents, + const cairo_rectangle_int_t *sample, + int *src_x, int *src_y) +{ + return cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 0, 0); +} + +static cairo_int_status_t +fill_boxes (void *_dst, + cairo_operator_t op, + const cairo_color_t *color, + cairo_boxes_t *boxes) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +draw_image_boxes (void *_dst, + cairo_image_surface_t *image, + cairo_boxes_t *boxes, + int dx, int dy) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +composite (void *_dst, + cairo_operator_t op, + cairo_surface_t *abstract_src, + cairo_surface_t *abstract_mask, + int src_x, + int src_y, + int mask_x, + int mask_y, + int dst_x, + int dst_y, + unsigned int width, + unsigned int height) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +lerp (void *_dst, + cairo_surface_t *abstract_src, + cairo_surface_t *abstract_mask, + int src_x, + int src_y, + int mask_x, + int mask_y, + int dst_x, + int dst_y, + unsigned int width, + unsigned int height) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +composite_boxes (void *_dst, + cairo_operator_t op, + cairo_surface_t *abstract_src, + cairo_surface_t *abstract_mask, + int src_x, + int src_y, + int mask_x, + int mask_y, + int dst_x, + int dst_y, + cairo_boxes_t *boxes, + const cairo_rectangle_int_t *extents) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +composite_traps (void *_dst, + cairo_operator_t op, + cairo_surface_t *abstract_src, + int src_x, + int src_y, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents, + cairo_antialias_t antialias, + cairo_traps_t *traps) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +check_composite_glyphs (const cairo_composite_rectangles_t *extents, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int *num_glyphs) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +composite_glyphs (void *_dst, + cairo_operator_t op, + cairo_surface_t *_src, + int src_x, + int src_y, + int dst_x, + int dst_y, + cairo_composite_glyphs_info_t *info) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +spans (void *abstract_renderer, + int y, int height, + const cairo_half_open_span_t *spans, + unsigned num_spans) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +finish_spans (void *abstract_renderer) +{ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +span_renderer_init (cairo_abstract_span_renderer_t *_r, + const cairo_composite_rectangles_t *composite, + cairo_antialias_t antialias, + cairo_bool_t needs_clip) +{ + cairo_span_renderer_t *r = (cairo_span_renderer_t *)_r; + r->render_rows = spans; + r->finish = finish_spans; + return CAIRO_STATUS_SUCCESS; +} + +static void +span_renderer_fini (cairo_abstract_span_renderer_t *_r, + cairo_int_status_t status) +{ +} + +static const cairo_compositor_t * +no_fallback_compositor_get (void) +{ + return &__cairo_no_compositor; +} + +static cairo_int_status_t +check_composite (const cairo_composite_rectangles_t *extents) +{ + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_compositor_t * +no_traps_compositor_get (void) +{ + static cairo_atomic_once_t once = CAIRO_ATOMIC_ONCE_INIT; + static cairo_traps_compositor_t compositor; + + if (_cairo_atomic_init_once_enter(&once)) { + _cairo_traps_compositor_init (&compositor, + no_fallback_compositor_get ()); + + compositor.acquire = acquire; + compositor.release = release; + compositor.set_clip_region = set_clip_region; + compositor.pattern_to_surface = pattern_to_surface; + compositor.draw_image_boxes = draw_image_boxes; + //compositor.copy_boxes = copy_boxes; + compositor.fill_boxes = fill_boxes; + compositor.check_composite = check_composite; + compositor.composite = composite; + compositor.lerp = lerp; + //compositor.check_composite_boxes = check_composite_boxes; + compositor.composite_boxes = composite_boxes; + //compositor.check_composite_traps = check_composite_traps; + compositor.composite_traps = composite_traps; + compositor.check_composite_glyphs = check_composite_glyphs; + compositor.composite_glyphs = composite_glyphs; + + _cairo_atomic_init_once_leave(&once); + } + + return &compositor.base; +} + +static const cairo_compositor_t * +no_spans_compositor_get (void) +{ + static cairo_atomic_once_t once = CAIRO_ATOMIC_ONCE_INIT; + static cairo_spans_compositor_t compositor; + + if (_cairo_atomic_init_once_enter(&once)) { + _cairo_spans_compositor_init (&compositor, + no_traps_compositor_get()); + + //compositor.acquire = acquire; + //compositor.release = release; + compositor.fill_boxes = fill_boxes; + //compositor.check_composite_boxes = check_composite_boxes; + compositor.composite_boxes = composite_boxes; + //compositor.check_span_renderer = check_span_renderer; + compositor.renderer_init = span_renderer_init; + compositor.renderer_fini = span_renderer_fini; + + _cairo_atomic_init_once_leave(&once); + } + + return &compositor.base; +} + +cairo_surface_t * +_cairo_test_no_fallback_compositor_surface_create (cairo_content_t content, + int width, + int height) +{ + return test_compositor_surface_create (no_fallback_compositor_get(), + content, width, height); +} + +cairo_surface_t * +_cairo_test_no_traps_compositor_surface_create (cairo_content_t content, + int width, + int height) +{ + return test_compositor_surface_create (no_traps_compositor_get(), + content, width, height); +} + +cairo_surface_t * +_cairo_test_no_spans_compositor_surface_create (cairo_content_t content, + int width, + int height) +{ + return test_compositor_surface_create (no_spans_compositor_get(), + content, width, height); +} diff --git a/local/recipes/libs/cairo/source/src/test-null-compositor-surface.h b/local/recipes/libs/cairo/source/src/test-null-compositor-surface.h new file mode 100644 index 0000000000..52d864b28d --- /dev/null +++ b/local/recipes/libs/cairo/source/src/test-null-compositor-surface.h @@ -0,0 +1,60 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2011 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Intel Corporation + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef TEST_NULL_COMPOSITOR_SURFACE_H +#define TEST_NULL_COMPOSITOR_SURFACE_H + +#include "cairo.h" + +CAIRO_BEGIN_DECLS + +cairo_surface_t * +_cairo_test_no_fallback_compositor_surface_create (cairo_content_t content, + int width, + int height); + +cairo_surface_t * +_cairo_test_no_traps_compositor_surface_create (cairo_content_t content, + int width, + int height); + +cairo_surface_t * +_cairo_test_no_spans_compositor_surface_create (cairo_content_t content, + int width, + int height); + +CAIRO_END_DECLS + +#endif /* TEST_NULL_COMPOSITOR_SURFACE_H */ diff --git a/local/recipes/libs/cairo/source/src/test-paginated-surface.c b/local/recipes/libs/cairo/source/src/test-paginated-surface.c new file mode 100644 index 0000000000..d33594d4be --- /dev/null +++ b/local/recipes/libs/cairo/source/src/test-paginated-surface.c @@ -0,0 +1,289 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl Worth + */ + +/* This isn't a "real" surface, but just something to be used by the + * test suite to help exercise the paginated-surface paths in cairo. + * + * The defining feature of this backend is that it uses a paginated + * surface to record all operations, and then replays everything to an + * image surface. + * + * It's possible that this code might serve as a good starting point + * for someone working on bringing up a new paginated-surface-based + * backend. + */ + +#include "cairoint.h" + +#include "test-paginated-surface.h" + +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-paginated-private.h" +#include "cairo-surface-backend-private.h" + +typedef struct _test_paginated_surface { + cairo_surface_t base; + cairo_surface_t *target; + cairo_paginated_mode_t paginated_mode; +} test_paginated_surface_t; + +static const cairo_surface_backend_t test_paginated_surface_backend; +static const cairo_paginated_surface_backend_t test_paginated_surface_paginated_backend; + +cairo_surface_t * +_cairo_test_paginated_surface_create (cairo_surface_t *target) +{ + cairo_status_t status; + cairo_surface_t *paginated; + test_paginated_surface_t *surface; + + status = cairo_surface_status (target); + if (unlikely (status)) + return _cairo_surface_create_in_error (status); + + surface = _cairo_calloc (sizeof (test_paginated_surface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + _cairo_surface_init (&surface->base, + &test_paginated_surface_backend, + NULL, /* device */ + target->content, + TRUE); /* is_vector */ + + surface->target = cairo_surface_reference (target); + + paginated = _cairo_paginated_surface_create (&surface->base, + target->content, + &test_paginated_surface_paginated_backend); + status = paginated->status; + if (status == CAIRO_STATUS_SUCCESS) { + /* paginated keeps the only reference to surface now, drop ours */ + cairo_surface_destroy (&surface->base); + return paginated; + } + + cairo_surface_destroy (target); + free (surface); + return _cairo_surface_create_in_error (status); +} + +static cairo_status_t +_test_paginated_surface_finish (void *abstract_surface) +{ + test_paginated_surface_t *surface = abstract_surface; + + cairo_surface_destroy (surface->target); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_test_paginated_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle) +{ + test_paginated_surface_t *surface = abstract_surface; + + return _cairo_surface_get_extents (surface->target, rectangle); +} + +static cairo_int_status_t +_test_paginated_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + test_paginated_surface_t *surface = abstract_surface; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) + return CAIRO_STATUS_SUCCESS; + + return _cairo_surface_paint (surface->target, op, source, clip); +} + +static cairo_int_status_t +_test_paginated_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + test_paginated_surface_t *surface = abstract_surface; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) + return CAIRO_STATUS_SUCCESS; + + return _cairo_surface_mask (surface->target, + op, source, mask, clip); +} + +static cairo_int_status_t +_test_paginated_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + test_paginated_surface_t *surface = abstract_surface; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) + return CAIRO_STATUS_SUCCESS; + + return _cairo_surface_stroke (surface->target, op, source, + path, style, + ctm, ctm_inverse, + tolerance, antialias, + clip); +} + +static cairo_int_status_t +_test_paginated_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + test_paginated_surface_t *surface = abstract_surface; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) + return CAIRO_STATUS_SUCCESS; + + return _cairo_surface_fill (surface->target, op, source, + path, fill_rule, + tolerance, antialias, + clip); +} + +static cairo_bool_t +_test_paginated_surface_has_show_text_glyphs (void *abstract_surface) +{ + test_paginated_surface_t *surface = abstract_surface; + + return cairo_surface_has_show_text_glyphs (surface->target); +} + +static cairo_int_status_t +_test_paginated_surface_show_text_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const char *utf8, + int utf8_len, + cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t cluster_flags, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + test_paginated_surface_t *surface = abstract_surface; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) + return CAIRO_STATUS_SUCCESS; + + return _cairo_surface_show_text_glyphs (surface->target, op, source, + utf8, utf8_len, + glyphs, num_glyphs, + clusters, num_clusters, + cluster_flags, + scaled_font, + clip); +} + + +static cairo_int_status_t +_test_paginated_surface_set_paginated_mode (void *abstract_surface, + cairo_paginated_mode_t mode) +{ + test_paginated_surface_t *surface = abstract_surface; + + surface->paginated_mode = mode; + + return CAIRO_STATUS_SUCCESS; +} + +static const cairo_surface_backend_t test_paginated_surface_backend = { + CAIRO_INTERNAL_SURFACE_TYPE_TEST_PAGINATED, + _test_paginated_surface_finish, + _cairo_default_context_create, + + /* Since we are a paginated user, we get to regard most of the + * surface backend interface as historical cruft and ignore it. */ + + NULL, /* create_similar */ + NULL, /* create similar image */ + NULL, /* map to image */ + NULL, /* unmap image */ + + _cairo_surface_default_source, + NULL, /* acquire_source_image */ + NULL, /* release_source_image */ + NULL, /* snapshot */ + + NULL, /* copy_page */ + NULL, /* show_page */ + + _test_paginated_surface_get_extents, + NULL, /* get_font_options */ + + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + + /* Here is the more "modern" section of the surface backend + * interface which is mostly just drawing functions */ + + _test_paginated_surface_paint, + _test_paginated_surface_mask, + _test_paginated_surface_stroke, + _test_paginated_surface_fill, + NULL, /* fill-stroke */ + NULL, /* replaced by show_text_glyphs */ + _test_paginated_surface_has_show_text_glyphs, + _test_paginated_surface_show_text_glyphs +}; + +static const cairo_paginated_surface_backend_t test_paginated_surface_paginated_backend = { + NULL, /* start_page */ + _test_paginated_surface_set_paginated_mode +}; diff --git a/local/recipes/libs/cairo/source/src/test-paginated-surface.h b/local/recipes/libs/cairo/source/src/test-paginated-surface.h new file mode 100644 index 0000000000..2bd98aa5ee --- /dev/null +++ b/local/recipes/libs/cairo/source/src/test-paginated-surface.h @@ -0,0 +1,48 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Carl Worth + */ + +#ifndef TEST_PAGINATED_SURFACE_H +#define TEST_PAGINATED_SURFACE_H + +#include "cairo.h" + +CAIRO_BEGIN_DECLS + +cairo_surface_t * +_cairo_test_paginated_surface_create (cairo_surface_t *target); + +CAIRO_END_DECLS + +#endif /* TEST_PAGINATED_SURFACE_H */ diff --git a/local/recipes/libs/cairo/source/src/win32/cairo-dwrite-font.cpp b/local/recipes/libs/cairo/source/src/win32/cairo-dwrite-font.cpp new file mode 100644 index 0000000000..bf5191967e --- /dev/null +++ b/local/recipes/libs/cairo/source/src/win32/cairo-dwrite-font.cpp @@ -0,0 +1,2494 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2010 Mozilla Foundation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is the Mozilla Foundation + * + * Contributor(s): + * Bas Schouten + */ + +#include "cairoint.h" + +#include "cairo-win32-private.h" +#include "cairo-pattern-private.h" +#include "cairo-surface-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-clip-private.h" +#include "cairo-win32-refptr.hpp" +#include "cairo-dwrite-private.hpp" +#include "cairo-truetype-subset-private.h" +#include "cairo-scaled-font-subsets-private.h" +#include "cairo-dwrite.h" + +#include +#include + +#include + +/** + * SECTION:cairo-dwrite-fonts + * @Title: DWrite Fonts + * @Short_Description: Font support for Microsoft DirectWrite + * @See_Also: #cairo_font_face_t + * + * The Microsoft DirectWrite font backend is primarily used to render text on + * Microsoft Windows systems. + **/ + +/** + * CAIRO_HAS_DWRITE_FONT: + * + * Defined if the Microsoft DWrite font backend is available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.18 + **/ + +typedef HRESULT (WINAPI*D2D1CreateFactoryFunc)( + D2D1_FACTORY_TYPE factoryType, + REFIID iid, + CONST D2D1_FACTORY_OPTIONS *pFactoryOptions, + void **factory +); + +#define CAIRO_INT_STATUS_SUCCESS (cairo_int_status_t)CAIRO_STATUS_SUCCESS + +// Forward declarations +cairo_int_status_t +_dwrite_draw_glyphs_to_gdi_surface_d2d(cairo_win32_surface_t *surface, + DWRITE_MATRIX *transform, + DWRITE_GLYPH_RUN *run, + COLORREF color, + const RECT &area); + +static cairo_int_status_t +_dwrite_draw_glyphs_to_gdi_surface_gdi(cairo_win32_surface_t *surface, + DWRITE_MATRIX *transform, + DWRITE_GLYPH_RUN *run, + COLORREF color, + cairo_dwrite_scaled_font_t *scaled_font, + const RECT &area); + +/** + * _cairo_dwrite_error: + * @hr HRESULT code + * @context: context string to display along with the error + * + * Helper function to print a human readable form a HRESULT. + * + * Return value: A cairo status code for the error code + **/ +static cairo_int_status_t +_cairo_dwrite_error (HRESULT hr, const char *context) +{ + void *lpMsgBuf; + + if (!FormatMessageW (FORMAT_MESSAGE_ALLOCATE_BUFFER | + FORMAT_MESSAGE_IGNORE_INSERTS | + FORMAT_MESSAGE_FROM_SYSTEM, + NULL, + hr, + MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT), + (LPWSTR) &lpMsgBuf, + 0, NULL)) { + fprintf (stderr, "%s: Unknown DWrite error HRESULT=0x%08lx\n", context, (unsigned long)hr); + } else { + fprintf (stderr, "%s: %S\n", context, (wchar_t *)lpMsgBuf); + LocalFree (lpMsgBuf); + } + fflush (stderr); + + return (cairo_int_status_t)_cairo_error (CAIRO_STATUS_DWRITE_ERROR); +} + +class D2DFactory +{ +public: + static RefPtr Instance() + { + if (!mFactoryInstance) { +#ifdef __GNUC__ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wcast-function-type" +#endif + HMODULE d2d1 = _cairo_win32_load_library_from_system32 (L"d2d1.dll"); + D2D1CreateFactoryFunc createD2DFactory = (D2D1CreateFactoryFunc) + GetProcAddress(d2d1, "D2D1CreateFactory"); +#ifdef __GNUC__ +#pragma GCC diagnostic pop +#endif + if (createD2DFactory) { + D2D1_FACTORY_OPTIONS options; + options.debugLevel = D2D1_DEBUG_LEVEL_NONE; + createD2DFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED, + __uuidof(ID2D1Factory), + &options, + (void**)&mFactoryInstance); + } + } + return mFactoryInstance; + } + + static RefPtr Instance4() + { + if (!mFactoryInstance4) { + if (Instance()) { + Instance()->QueryInterface(&mFactoryInstance4); + } + } + return mFactoryInstance4; + } + + static RefPtr RenderTarget() + { + if (!mRenderTarget) { + if (!Instance()) { + return NULL; + } + // Create a DC render target. + D2D1_RENDER_TARGET_PROPERTIES props = D2D1::RenderTargetProperties( + D2D1_RENDER_TARGET_TYPE_DEFAULT, + D2D1::PixelFormat( + DXGI_FORMAT_B8G8R8A8_UNORM, + D2D1_ALPHA_MODE_PREMULTIPLIED), + 0, + 0, + D2D1_RENDER_TARGET_USAGE_NONE, + D2D1_FEATURE_LEVEL_DEFAULT + ); + + Instance()->CreateDCRenderTarget(&props, &mRenderTarget); + } + return mRenderTarget; + } + +private: + static RefPtr mFactoryInstance; + static RefPtr mFactoryInstance4; + static RefPtr mRenderTarget; +}; + +class WICImagingFactory +{ +public: + static RefPtr Instance() + { + if (!mFactoryInstance) { + CoInitialize(NULL); + CoCreateInstance(CLSID_WICImagingFactory, + NULL, + CLSCTX_INPROC_SERVER, + IID_PPV_ARGS(&mFactoryInstance)); + } + return mFactoryInstance; + } +private: + static RefPtr mFactoryInstance; +}; + + +RefPtr DWriteFactory::mFactoryInstance; +RefPtr DWriteFactory::mFactoryInstance1; +RefPtr DWriteFactory::mFactoryInstance2; +RefPtr DWriteFactory::mFactoryInstance3; +RefPtr DWriteFactory::mFactoryInstance4; + +RefPtr WICImagingFactory::mFactoryInstance; +RefPtr DWriteFactory::mSystemCollection; +RefPtr DWriteFactory::mDefaultRenderingParams; + +RefPtr D2DFactory::mFactoryInstance; +RefPtr D2DFactory::mRenderTarget; + +static RefPtr +_create_rendering_params(IDWriteRenderingParams *params, + const cairo_font_options_t *options, + cairo_antialias_t antialias) +{ + if (!params) + params = DWriteFactory::DefaultRenderingParams(); + FLOAT gamma = params->GetGamma(); + FLOAT enhanced_contrast = params->GetEnhancedContrast(); + FLOAT clear_type_level = params->GetClearTypeLevel(); + DWRITE_PIXEL_GEOMETRY pixel_geometry = params->GetPixelGeometry(); + DWRITE_RENDERING_MODE rendering_mode = params->GetRenderingMode(); + + cairo_bool_t modified = FALSE; + switch (antialias) { + case CAIRO_ANTIALIAS_NONE: + if (rendering_mode != DWRITE_RENDERING_MODE_ALIASED) { + rendering_mode = DWRITE_RENDERING_MODE_ALIASED; + modified = TRUE; + } + break; + case CAIRO_ANTIALIAS_FAST: + case CAIRO_ANTIALIAS_GRAY: + if (clear_type_level) { + clear_type_level = 0; + modified = TRUE; + } + break; + default: + break; + } + auto subpixel_order = cairo_font_options_get_subpixel_order (options); + switch (subpixel_order) { + case CAIRO_SUBPIXEL_ORDER_RGB: + if (pixel_geometry != DWRITE_PIXEL_GEOMETRY_RGB) { + pixel_geometry = DWRITE_PIXEL_GEOMETRY_RGB; + modified = TRUE; + } + break; + case CAIRO_SUBPIXEL_ORDER_BGR: + if (pixel_geometry != DWRITE_PIXEL_GEOMETRY_BGR) { + pixel_geometry = DWRITE_PIXEL_GEOMETRY_BGR; + modified = TRUE; + } + break; + default: + break; + } + if (!modified) + return params; + + HRESULT hr; + RefPtr params1; + hr = params->QueryInterface(¶ms1); + if (FAILED(hr)) { + RefPtr ret; + DWriteFactory::Instance()->CreateCustomRenderingParams(gamma, enhanced_contrast, clear_type_level, pixel_geometry, rendering_mode, &ret); + return ret; + } + + FLOAT grayscaleEnhancedContrast = params1->GetGrayscaleEnhancedContrast(); + RefPtr params2; + hr = params->QueryInterface(¶ms2); + if (FAILED(hr)) { + RefPtr ret; + DWriteFactory::Instance1()->CreateCustomRenderingParams(gamma, enhanced_contrast, grayscaleEnhancedContrast, clear_type_level, pixel_geometry, rendering_mode, &ret); + return ret; + } + + DWRITE_GRID_FIT_MODE gridFitMode = params2->GetGridFitMode(); + RefPtr params3; + hr = params->QueryInterface(¶ms3); + if (FAILED(hr)) { + RefPtr ret; + DWriteFactory::Instance2()->CreateCustomRenderingParams(gamma, enhanced_contrast, grayscaleEnhancedContrast, clear_type_level, pixel_geometry, rendering_mode, gridFitMode, &ret); + return ret; + } + + DWRITE_RENDERING_MODE1 rendering_mode1 = params3->GetRenderingMode1(); + if (antialias == CAIRO_ANTIALIAS_NONE) + rendering_mode1 = DWRITE_RENDERING_MODE1_ALIASED; + RefPtr ret; + DWriteFactory::Instance3()->CreateCustomRenderingParams(gamma, enhanced_contrast, grayscaleEnhancedContrast, clear_type_level, pixel_geometry, rendering_mode1, gridFitMode, &ret); + return ret; +} + +/* Functions #cairo_font_face_backend_t */ +static cairo_status_t +_cairo_dwrite_font_face_create_for_toy (cairo_toy_font_face_t *toy_face, + cairo_font_face_t **font_face); +static cairo_bool_t +_cairo_dwrite_font_face_destroy (void *font_face); + +static cairo_status_t +_cairo_dwrite_font_face_scaled_font_create (void *abstract_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options, + cairo_scaled_font_t **font); + +const cairo_font_face_backend_t _cairo_dwrite_font_face_backend = { + CAIRO_FONT_TYPE_DWRITE, + _cairo_dwrite_font_face_create_for_toy, + _cairo_dwrite_font_face_destroy, + _cairo_dwrite_font_face_scaled_font_create +}; + +/* Functions #cairo_scaled_font_backend_t */ + +static void _cairo_dwrite_scaled_font_fini(void *scaled_font); + +static cairo_warn cairo_int_status_t +_cairo_dwrite_scaled_glyph_init(void *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_glyph_info_t info, + const cairo_color_t *foreground_color); + +static cairo_int_status_t +_cairo_dwrite_load_truetype_table(void *scaled_font, + unsigned long tag, + long offset, + unsigned char *buffer, + unsigned long *length); + +static unsigned long +_cairo_dwrite_ucs4_to_index(void *scaled_font, + uint32_t ucs4); + +static cairo_int_status_t +_cairo_dwrite_is_synthetic(void *scaled_font, + cairo_bool_t *is_synthetic); + +static cairo_bool_t +_cairo_dwrite_has_color_glyphs(void *scaled_font); + +static const cairo_scaled_font_backend_t _cairo_dwrite_scaled_font_backend = { + CAIRO_FONT_TYPE_DWRITE, + _cairo_dwrite_scaled_font_fini, + _cairo_dwrite_scaled_glyph_init, + NULL, /* text_to_glyphs */ + _cairo_dwrite_ucs4_to_index, + _cairo_dwrite_load_truetype_table, + NULL, /* index_to_ucs4 */ + _cairo_dwrite_is_synthetic, + NULL, /* index_to_glyph_name */ + NULL, /* load_type1_data */ + _cairo_dwrite_has_color_glyphs +}; + +/* Helper conversion functions */ + + +/** + * _cairo_dwrite_matrix_from_matrix: + * Get a DirectWrite matrix from a cairo matrix. Note that DirectWrite uses row + * vectors where cairo uses column vectors. Hence the transposition. + * + * \param Cairo matrix + * \return DirectWrite matrix + **/ +static DWRITE_MATRIX +_cairo_dwrite_matrix_from_matrix(const cairo_matrix_t *matrix) +{ + DWRITE_MATRIX dwmat; + dwmat.m11 = (FLOAT)matrix->xx; + dwmat.m12 = (FLOAT)matrix->yx; + dwmat.m21 = (FLOAT)matrix->xy; + dwmat.m22 = (FLOAT)matrix->yy; + dwmat.dx = (FLOAT)matrix->x0; + dwmat.dy = (FLOAT)matrix->y0; + return dwmat; +} + +/* Helper functions for cairo_dwrite_scaled_glyph_init() */ +static cairo_int_status_t +_cairo_dwrite_scaled_font_init_glyph_metrics + (cairo_dwrite_scaled_font_t *scaled_font, cairo_scaled_glyph_t *scaled_glyph); + +static cairo_int_status_t +_cairo_dwrite_scaled_font_init_glyph_color_surface(cairo_dwrite_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + const cairo_color_t *foreground_color); + +static cairo_int_status_t +_cairo_dwrite_scaled_font_init_glyph_surface + (cairo_dwrite_scaled_font_t *scaled_font, cairo_scaled_glyph_t *scaled_glyph); + +static cairo_int_status_t +_cairo_dwrite_scaled_font_init_glyph_path + (cairo_dwrite_scaled_font_t *scaled_font, cairo_scaled_glyph_t *scaled_glyph); + +/* implement the font backend interface */ + +static cairo_status_t +_cairo_dwrite_font_face_create_for_toy (cairo_toy_font_face_t *toy_face, + cairo_font_face_t **font_face) +{ + WCHAR *face_name; + int face_name_len; + + if (!DWriteFactory::Instance()) { + return (cairo_status_t)CAIRO_INT_STATUS_UNSUPPORTED; + } + + face_name_len = MultiByteToWideChar(CP_UTF8, 0, toy_face->family, -1, NULL, 0); + face_name = new WCHAR[face_name_len]; + MultiByteToWideChar(CP_UTF8, 0, toy_face->family, -1, face_name, face_name_len); + + RefPtr family = DWriteFactory::FindSystemFontFamily(face_name); + delete[] face_name; + if (!family) { + /* If the family is not found, use the default that should always exist. */ + face_name_len = MultiByteToWideChar(CP_UTF8, 0, CAIRO_FONT_FAMILY_DEFAULT, -1, NULL, 0); + face_name = new WCHAR[face_name_len]; + MultiByteToWideChar(CP_UTF8, 0, CAIRO_FONT_FAMILY_DEFAULT, -1, face_name, face_name_len); + + family = DWriteFactory::FindSystemFontFamily(face_name); + delete[] face_name; + if (!family) { + *font_face = (cairo_font_face_t*)&_cairo_font_face_nil; + return (cairo_status_t)CAIRO_INT_STATUS_UNSUPPORTED; + } + } + + DWRITE_FONT_WEIGHT weight; + switch (toy_face->weight) { + case CAIRO_FONT_WEIGHT_BOLD: + weight = DWRITE_FONT_WEIGHT_BOLD; + break; + case CAIRO_FONT_WEIGHT_NORMAL: + default: + weight = DWRITE_FONT_WEIGHT_NORMAL; + break; + } + + DWRITE_FONT_STYLE style; + switch (toy_face->slant) { + case CAIRO_FONT_SLANT_ITALIC: + style = DWRITE_FONT_STYLE_ITALIC; + break; + case CAIRO_FONT_SLANT_OBLIQUE: + style = DWRITE_FONT_STYLE_OBLIQUE; + break; + case CAIRO_FONT_SLANT_NORMAL: + default: + style = DWRITE_FONT_STYLE_NORMAL; + break; + } + + RefPtr font; + HRESULT hr = family->GetFirstMatchingFont(weight, DWRITE_FONT_STRETCH_NORMAL, style, &font); + if (FAILED(hr)) + return (cairo_status_t)_cairo_dwrite_error (hr, "GetFirstMatchingFont failed"); + + RefPtr dwriteface; + hr = font->CreateFontFace(&dwriteface); + if (FAILED(hr)) + return (cairo_status_t)_cairo_dwrite_error (hr, "CreateFontFace failed"); + + *font_face = cairo_dwrite_font_face_create_for_dwrite_fontface(dwriteface); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_cairo_dwrite_font_face_destroy (void *font_face) +{ + cairo_dwrite_font_face_t *dwrite_font_face = static_cast(font_face); + if (dwrite_font_face->dwriteface) + dwrite_font_face->dwriteface->Release(); + if (dwrite_font_face->rendering_params) + dwrite_font_face->rendering_params->Release(); + return TRUE; +} + +static inline unsigned short +read_short(const char *buf) +{ + return be16_to_cpu(*(unsigned short*)buf); +} + +void +_cairo_dwrite_glyph_run_from_glyphs(cairo_glyph_t *glyphs, + int num_glyphs, + cairo_dwrite_scaled_font_t *scaled_font, + AutoDWriteGlyphRun *run, + cairo_bool_t *transformed) +{ + run->allocate(num_glyphs); + + UINT16 *indices = const_cast(run->glyphIndices); + FLOAT *advances = const_cast(run->glyphAdvances); + DWRITE_GLYPH_OFFSET *offsets = const_cast(run->glyphOffsets); + + run->bidiLevel = 0; + run->fontFace = scaled_font->dwriteface; + run->glyphCount = num_glyphs; + run->isSideways = FALSE; + + if (scaled_font->mat.xy == 0 && scaled_font->mat.yx == 0 && + scaled_font->mat.xx == scaled_font->base.font_matrix.xx && + scaled_font->mat.yy == scaled_font->base.font_matrix.yy) { + // Fast route, don't actually use a transform but just + // set the correct font size. + *transformed = 0; + + run->fontEmSize = (FLOAT)scaled_font->base.font_matrix.yy; + + for (int i = 0; i < num_glyphs; i++) { + indices[i] = (WORD) glyphs[i].index; + + offsets[i].ascenderOffset = -(FLOAT)(glyphs[i].y); + offsets[i].advanceOffset = (FLOAT)(glyphs[i].x); + advances[i] = 0.0; + } + } else { + *transformed = 1; + // Transforming positions by the inverse matrix, then by the original + // matrix later may introduce small errors, especially because the + // D2D matrix is single-precision whereas the cairo one is double. + // This is a problem when glyph positions were originally at exactly + // half-pixel locations, which eventually round to whole pixels for + // GDI rendering - the errors introduced here cause them to round in + // unpredictable directions, instead of all rounding in a consistent + // way, leading to poor glyph spacing (bug 675383). + // To mitigate this, nudge the positions by a tiny amount to try and + // ensure that after the two transforms, they'll still round in a + // consistent direction. + const double EPSILON = 0.0001; + for (int i = 0; i < num_glyphs; i++) { + indices[i] = (WORD) glyphs[i].index; + double x = glyphs[i].x + EPSILON; + double y = glyphs[i].y; + cairo_matrix_transform_point(&scaled_font->mat_inverse, &x, &y); + // Since we will multiply by our ctm matrix later for rotation effects + // and such, adjust positions by the inverse matrix now. Y-axis is + // inverted! Therefor the offset is -y. + offsets[i].ascenderOffset = -(FLOAT)y; + offsets[i].advanceOffset = (FLOAT)x; + advances[i] = 0.0; + } + // The font matrix takes care of the scaling if we have a transform, + // emSize should be 1. + run->fontEmSize = 1.0f; + } +} + +#define GASP_TAG 0x70736167 +#define GASP_DOGRAY 0x2 + +static cairo_bool_t +do_grayscale(IDWriteFontFace *dwface, unsigned int ppem) +{ + void *tableContext; + char *tableData; + UINT32 tableSize; + BOOL exists; + dwface->TryGetFontTable(GASP_TAG, (const void**)&tableData, &tableSize, &tableContext, &exists); + + if (exists) { + if (tableSize < 4) { + dwface->ReleaseFontTable(tableContext); + return true; + } + struct gaspRange { + unsigned short maxPPEM; // Stored big-endian + unsigned short behavior; // Stored big-endian + }; + unsigned short numRanges = read_short(tableData + 2); + if (tableSize < (UINT)4 + numRanges * 4) { + dwface->ReleaseFontTable(tableContext); + return true; + } + gaspRange *ranges = (gaspRange *)(tableData + 4); + for (int i = 0; i < numRanges; i++) { + if (be16_to_cpu(ranges[i].maxPPEM) > ppem) { + if (!(be16_to_cpu(ranges[i].behavior) & GASP_DOGRAY)) { + dwface->ReleaseFontTable(tableContext); + return false; + } + break; + } + } + dwface->ReleaseFontTable(tableContext); + } + return true; +} + +static void +set_dwrite_axes_from_string (const char *string, + DWRITE_FONT_AXIS_VALUE *dwrite_axes, + UINT32 count) +{ + const char *p = string; + + while (p && *p) { + const char *start; + const char *end, *end2; + DWRITE_FONT_AXIS_TAG tag; + double value; + + while (_cairo_isspace (*p)) p++; + + start = p; + end = strchr (p, ','); + if (end && (end - p < 6)) + goto skip; + + tag = DWRITE_MAKE_FONT_AXIS_TAG (p[0], p[1], p[2], p[3]); + + p += 4; + while (_cairo_isspace (*p)) p++; + if (*p == '=') p++; + + if (p - start < 5) + goto skip; + + value = _cairo_strtod (p, (char **) &end2); + + while (end2 && _cairo_isspace (*end2)) end2++; + + if (end2 && (*end2 != ',' && *end2 != '\0')) + goto skip; + + for (UINT32 i = 0; i < count; i++) { + if (dwrite_axes[i].axisTag == tag) { + dwrite_axes[i].value = value; + break; + } + } + +skip: + p = end ? end + 1 : NULL; + } +} + +static cairo_status_t +_cairo_dwrite_font_face_scaled_font_create (void *abstract_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options, + cairo_scaled_font_t **font) +{ + cairo_status_t status; + cairo_dwrite_font_face_t *font_face = static_cast(abstract_face); + + /* Must do malloc and not C++ new, since Cairo frees this. */ + cairo_dwrite_scaled_font_t *dwrite_font = (cairo_dwrite_scaled_font_t*)_cairo_calloc( + sizeof(cairo_dwrite_scaled_font_t)); + if (unlikely(dwrite_font == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + *font = reinterpret_cast(dwrite_font); + status = _cairo_scaled_font_init (&dwrite_font->base, + &font_face->base, + font_matrix, + ctm, + options, + &_cairo_dwrite_scaled_font_backend); + if (status) { + free(dwrite_font); + return status; + } + + if (options->variations) { + RefPtr dwriteface5; + + /* Since Windows 10 20348 */ + if (SUCCEEDED (font_face->dwriteface->QueryInterface(&dwriteface5))) { + RefPtr dwritefontresource; + + if (dwriteface5->HasVariations () && + SUCCEEDED (dwriteface5->GetFontResource (&dwritefontresource))) + { + UINT32 count = MIN (dwriteface5->GetFontAxisValueCount (), 500); + DWRITE_FONT_AXIS_VALUE *dwrite_axes = new DWRITE_FONT_AXIS_VALUE[count]; + UINT32 variables_count = 0; + + /* Sort variable axes first */ + for (UINT32 i = 0; i < count; i++) { + if (dwritefontresource->GetFontAxisAttributes (i) & DWRITE_FONT_AXIS_ATTRIBUTES_VARIABLE) { + if (variables_count != i) { + DWRITE_FONT_AXIS_VALUE swap_aux = dwrite_axes[variables_count]; + dwrite_axes[variables_count] = dwrite_axes[i]; + dwrite_axes[i] = swap_aux; + } + + variables_count++; + } + } + + if (SUCCEEDED (dwriteface5->GetFontAxisValues(dwrite_axes, count))) { + RefPtr dwriteface_new5; + + set_dwrite_axes_from_string (options->variations, dwrite_axes, variables_count); + + /* Can't use constexpr with mingw-w64 headers */ + const DWRITE_FONT_SIMULATIONS all_simulations = DWRITE_FONT_SIMULATIONS_BOLD | + DWRITE_FONT_SIMULATIONS_OBLIQUE; + if (SUCCEEDED (dwritefontresource->CreateFontFace(all_simulations, + dwrite_axes, + count, + &dwriteface_new5))) + { + dwrite_font->dwriteface = dwriteface_new5.forget().drop(); + } + } + + delete[] dwrite_axes; + } + } + } + + if (!dwrite_font->dwriteface) { + font_face->dwriteface->AddRef (); + dwrite_font->dwriteface = font_face->dwriteface; + } + + dwrite_font->mat = dwrite_font->base.ctm; + cairo_matrix_multiply(&dwrite_font->mat, &dwrite_font->mat, font_matrix); + dwrite_font->mat_inverse = dwrite_font->mat; + cairo_matrix_invert (&dwrite_font->mat_inverse); + + cairo_font_extents_t extents; + + DWRITE_FONT_METRICS metrics; + if (dwrite_font->measuring_mode == DWRITE_MEASURING_MODE_GDI_CLASSIC || + dwrite_font->measuring_mode == DWRITE_MEASURING_MODE_GDI_NATURAL) { + DWRITE_MATRIX transform = _cairo_dwrite_matrix_from_matrix (&dwrite_font->mat); + dwrite_font->dwriteface->GetGdiCompatibleMetrics(1, 1, &transform, &metrics); + } else { + dwrite_font->dwriteface->GetMetrics(&metrics); + } + + extents.ascent = (FLOAT)metrics.ascent / metrics.designUnitsPerEm; + extents.descent = (FLOAT)metrics.descent / metrics.designUnitsPerEm; + extents.height = (FLOAT)(metrics.ascent + metrics.descent + metrics.lineGap) / metrics.designUnitsPerEm; + extents.max_x_advance = 14.0; + extents.max_y_advance = 0.0; + + cairo_antialias_t default_quality = CAIRO_ANTIALIAS_SUBPIXEL; + + // The following code detects the system quality at scaled_font creation time, + // this means that if cleartype settings are changed but the scaled_fonts + // are re-used, they might not adhere to the new system setting until re- + // creation. + switch (cairo_win32_get_system_text_quality()) { + case CLEARTYPE_QUALITY: + default_quality = CAIRO_ANTIALIAS_SUBPIXEL; + break; + case ANTIALIASED_QUALITY: + default_quality = CAIRO_ANTIALIAS_GRAY; + break; + case DEFAULT_QUALITY: + // _get_system_quality() seems to think aliased is default! + default_quality = CAIRO_ANTIALIAS_NONE; + break; + } + + if (default_quality == CAIRO_ANTIALIAS_GRAY) { + if (!do_grayscale(dwrite_font->dwriteface, (unsigned int)_cairo_round(font_matrix->yy))) { + default_quality = CAIRO_ANTIALIAS_NONE; + } + } + + if (options->antialias == CAIRO_ANTIALIAS_DEFAULT) { + dwrite_font->antialias_mode = default_quality; + } else { + dwrite_font->antialias_mode = options->antialias; + } + + dwrite_font->rendering_params = _create_rendering_params(font_face->rendering_params, options, dwrite_font->antialias_mode).forget().drop(); + dwrite_font->measuring_mode = font_face->measuring_mode; + + return _cairo_scaled_font_set_metrics (*font, &extents); +} + +/* Implementation #cairo_dwrite_scaled_font_backend_t */ +static void +_cairo_dwrite_scaled_font_fini(void *scaled_font) +{ + cairo_dwrite_scaled_font_t *dwrite_font = static_cast(scaled_font); + + dwrite_font->dwriteface->Release (); + + if (dwrite_font->rendering_params) + dwrite_font->rendering_params->Release(); +} + +static cairo_int_status_t +_cairo_dwrite_scaled_glyph_init(void *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_glyph_info_t info, + const cairo_color_t *foreground_color) +{ + cairo_dwrite_scaled_font_t *scaled_dwrite_font = static_cast(scaled_font); + cairo_int_status_t status = CAIRO_INT_STATUS_UNSUPPORTED; + + if ((info & CAIRO_SCALED_GLYPH_INFO_METRICS) != 0) { + status = _cairo_dwrite_scaled_font_init_glyph_metrics (scaled_dwrite_font, scaled_glyph); + if (status) + return status; + } + + if (info & CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) { + status = _cairo_dwrite_scaled_font_init_glyph_color_surface (scaled_dwrite_font, scaled_glyph, foreground_color); + if (status) + return status; + } + + if (info & CAIRO_SCALED_GLYPH_INFO_SURFACE) { + status = _cairo_dwrite_scaled_font_init_glyph_surface (scaled_dwrite_font, scaled_glyph); + if (status) + return status; + } + + if ((info & CAIRO_SCALED_GLYPH_INFO_PATH) != 0) { + status = _cairo_dwrite_scaled_font_init_glyph_path (scaled_dwrite_font, scaled_glyph); + if (status) + return status; + } + + return CAIRO_INT_STATUS_SUCCESS; +} + +static unsigned long +_cairo_dwrite_ucs4_to_index(void *scaled_font, + uint32_t ucs4) +{ + cairo_dwrite_scaled_font_t *dwritesf = static_cast(scaled_font); + UINT16 index = 0; + + dwritesf->dwriteface->GetGlyphIndicesA(&ucs4, 1, &index); + return index; +} + +/* cairo_dwrite_scaled_glyph_init() helper function bodies */ +static cairo_int_status_t +_cairo_dwrite_scaled_font_init_glyph_metrics(cairo_dwrite_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph) +{ + UINT16 charIndex = (UINT16)_cairo_scaled_glyph_index (scaled_glyph); + cairo_dwrite_font_face_t *font_face = (cairo_dwrite_font_face_t*)scaled_font->base.font_face; + cairo_text_extents_t extents; + + DWRITE_GLYPH_METRICS metrics; + DWRITE_FONT_METRICS fontMetrics; + HRESULT hr; + if (font_face->measuring_mode == DWRITE_MEASURING_MODE_GDI_CLASSIC || + font_face->measuring_mode == DWRITE_MEASURING_MODE_GDI_NATURAL) { + DWRITE_MATRIX transform = _cairo_dwrite_matrix_from_matrix (&scaled_font->mat); + scaled_font->dwriteface->GetGdiCompatibleMetrics(1, 1, &transform, &fontMetrics); + BOOL natural = font_face->measuring_mode == DWRITE_MEASURING_MODE_GDI_NATURAL; + hr = scaled_font->dwriteface->GetGdiCompatibleGlyphMetrics (1, 1, &transform, natural, &charIndex, 1, &metrics, FALSE); + } else { + scaled_font->dwriteface->GetMetrics(&fontMetrics); + hr = scaled_font->dwriteface->GetDesignGlyphMetrics(&charIndex, 1, &metrics); + } + if (FAILED(hr)) { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + // GetGdiCompatibleMetrics may return a glyph metrics that yields a small nagative glyph height. + INT32 glyph_width = metrics.advanceWidth - metrics.leftSideBearing - metrics.rightSideBearing; + INT32 glyph_height = metrics.advanceHeight - metrics.topSideBearing - metrics.bottomSideBearing; + glyph_width = MAX(glyph_width, 0); + glyph_height = MAX(glyph_height, 0); + + // TODO: Treat swap_xy. + extents.width = (FLOAT)glyph_width / fontMetrics.designUnitsPerEm; + extents.height = (FLOAT)glyph_height / fontMetrics.designUnitsPerEm; + extents.x_advance = (FLOAT)metrics.advanceWidth / fontMetrics.designUnitsPerEm; + extents.x_bearing = (FLOAT)metrics.leftSideBearing / fontMetrics.designUnitsPerEm; + extents.y_advance = 0.0; + extents.y_bearing = (FLOAT)(metrics.topSideBearing - metrics.verticalOriginY) / + fontMetrics.designUnitsPerEm; + + // We pad the extents here because GetDesignGlyphMetrics returns "ideal" metrics + // for the glyph outline, without accounting for hinting/gridfitting/antialiasing, + // and therefore it does not always cover all pixels that will actually be touched. + if (extents.width > 0 && extents.height > 0) { + double x = 1, y = 1; + cairo_matrix_transform_distance (&scaled_font->mat_inverse, &x, &y); + x = fabs(x); + y = fabs(y); + extents.width += x * 2; + extents.x_bearing -= x; + extents.height += y * 2; + extents.y_bearing -= y; + } + + _cairo_scaled_glyph_set_metrics (scaled_glyph, + &scaled_font->base, + &extents); + return CAIRO_INT_STATUS_SUCCESS; +} + +/* + * Stack-based helper implementing IDWriteGeometrySink. + * Used to determine the path of the glyphs. + */ + +class GeometryRecorder final + : public IDWriteGeometrySink +{ +public: + GeometryRecorder(cairo_path_fixed_t *aCairoPath, const cairo_matrix_t &matrix) + : mCairoPath(aCairoPath) + , mMatrix(matrix) {} + + IFACEMETHOD (QueryInterface)(IID const& iid, OUT void** ppObject) noexcept override + { + if (iid == __uuidof (IUnknown) || + iid == __uuidof (IDWriteGeometrySink)) + { + AddRef(); + *ppObject = this; + return S_OK; + } + + *ppObject = nullptr; + return E_NOINTERFACE; + } + + IFACEMETHOD_(ULONG, AddRef)() noexcept override + { + return 1; + } + + IFACEMETHOD_(ULONG, Release)() noexcept override + { + return 1; + } + + IFACEMETHOD_(void, SetFillMode)(D2D1_FILL_MODE fillMode) noexcept override + { + return; + } + + IFACEMETHOD (Close)() noexcept override + { + return S_OK; + } + + IFACEMETHOD_(void, SetSegmentFlags)(D2D1_PATH_SEGMENT vertexFlags) noexcept override + { + return; + } + + IFACEMETHOD_(void, BeginFigure)( + D2D1_POINT_2F startPoint, + D2D1_FIGURE_BEGIN figureBegin) noexcept override + { + double x = startPoint.x; + double y = startPoint.y; + cairo_matrix_transform_point(&mMatrix, &x, &y); + mStartPointX = _cairo_fixed_from_double(x); + mStartPointY = _cairo_fixed_from_double(y); + cairo_status_t status = _cairo_path_fixed_move_to(mCairoPath, + mStartPointX, + mStartPointY); + (void)status; /* squelch warning */ + } + + IFACEMETHOD_(void, EndFigure)( + D2D1_FIGURE_END figureEnd) noexcept override + { + if (figureEnd == D2D1_FIGURE_END_CLOSED) { + cairo_status_t status = _cairo_path_fixed_line_to(mCairoPath, + mStartPointX, + mStartPointY); + (void)status; /* squelch warning */ + } + } + + IFACEMETHOD_(void, AddBeziers)( + const D2D1_BEZIER_SEGMENT *beziers, + UINT beziersCount) noexcept override + { + for (unsigned int i = 0; i < beziersCount; i++) { + double x1 = beziers[i].point1.x; + double y1 = beziers[i].point1.y; + double x2 = beziers[i].point2.x; + double y2 = beziers[i].point2.y; + double x3 = beziers[i].point3.x; + double y3 = beziers[i].point3.y; + cairo_matrix_transform_point(&mMatrix, &x1, &y1); + cairo_matrix_transform_point(&mMatrix, &x2, &y2); + cairo_matrix_transform_point(&mMatrix, &x3, &y3); + cairo_status_t status = _cairo_path_fixed_curve_to(mCairoPath, + _cairo_fixed_from_double(x1), + _cairo_fixed_from_double(y1), + _cairo_fixed_from_double(x2), + _cairo_fixed_from_double(y2), + _cairo_fixed_from_double(x3), + _cairo_fixed_from_double(y3)); + (void)status; /* squelch warning */ + } + } + + IFACEMETHOD_(void, AddLines)( + const D2D1_POINT_2F *points, + UINT pointsCount) noexcept override + { + for (unsigned int i = 0; i < pointsCount; i++) { + double x = points[i].x; + double y = points[i].y; + cairo_matrix_transform_point(&mMatrix, &x, &y); + cairo_status_t status = _cairo_path_fixed_line_to(mCairoPath, + _cairo_fixed_from_double(x), + _cairo_fixed_from_double(y)); + (void)status; /* squelch warning */ + } + } + +private: + cairo_path_fixed_t *mCairoPath; + const cairo_matrix_t &mMatrix; + cairo_fixed_t mStartPointX; + cairo_fixed_t mStartPointY; +}; + +static cairo_int_status_t +_cairo_dwrite_scaled_font_init_glyph_path(cairo_dwrite_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph) +{ + cairo_int_status_t status; + cairo_path_fixed_t *path; + path = _cairo_path_fixed_create(); + GeometryRecorder recorder(path, scaled_font->base.scale); + + DWRITE_GLYPH_OFFSET offset; + offset.advanceOffset = 0; + offset.ascenderOffset = 0; + UINT16 glyphId = (UINT16)_cairo_scaled_glyph_index(scaled_glyph); + FLOAT advance = 0.0; + + HRESULT hr = scaled_font->dwriteface->GetGlyphRunOutline(1, + &glyphId, + &advance, + &offset, + 1, + FALSE, + FALSE, + &recorder); + if (!SUCCEEDED(hr)) + return _cairo_dwrite_error (hr, "GetGlyphRunOutline failed"); + + status = (cairo_int_status_t)_cairo_path_fixed_close_path(path); + + _cairo_scaled_glyph_set_path (scaled_glyph, + &scaled_font->base, + path); + return status; +} + +static cairo_int_status_t +_cairo_dwrite_scaled_font_init_glyph_color_surface(cairo_dwrite_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + const cairo_color_t *foreground_color) +{ + int width, height; + double x1, y1, x2, y2; + cairo_bool_t uses_foreground_color = FALSE; + + cairo_dwrite_font_face_t *dwrite_font_face = (cairo_dwrite_font_face_t *)scaled_font->base.font_face; + if (!dwrite_font_face->have_color) { + scaled_glyph->color_glyph = FALSE; + scaled_glyph->color_glyph_set = TRUE; + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + x1 = _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.x); + y1 = _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.y); + x2 = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.x); + y2 = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.y); + width = (int)(x2 - x1); + height = (int)(y2 - y1); + + DWRITE_GLYPH_RUN run; + FLOAT advance = 0; + UINT16 index = (UINT16)_cairo_scaled_glyph_index (scaled_glyph); + DWRITE_GLYPH_OFFSET offset; + double x = -x1 + .25 * _cairo_scaled_glyph_xphase (scaled_glyph); + double y = -y1 + .25 * _cairo_scaled_glyph_yphase (scaled_glyph); + DWRITE_MATRIX matrix; + D2D1_POINT_2F origin = {0, 0}; + RefPtr run_enumerator; + HRESULT hr; + + /* + * We transform by the inverse transformation here. This will put our glyph + * locations in the space in which we draw. Which is later transformed by + * the transformation matrix that we use. This will transform the + * glyph positions back to where they were before when drawing, but the + * glyph shapes will be transformed by the transformation matrix. + */ + cairo_matrix_transform_point(&scaled_font->mat_inverse, &x, &y); + offset.advanceOffset = (FLOAT)x; + /* Y-axis is inverted */ + offset.ascenderOffset = -(FLOAT)y; + + run.fontFace = scaled_font->dwriteface; + run.fontEmSize = 1; + run.glyphCount = 1; + run.glyphIndices = &index; + run.glyphAdvances = &advance; + run.glyphOffsets = &offset; + run.isSideways = FALSE; + run.bidiLevel = 0; + + matrix = _cairo_dwrite_matrix_from_matrix(&scaled_font->mat); + + /* The list of glyph image formats this renderer is prepared to support. */ + DWRITE_GLYPH_IMAGE_FORMATS supported_formats = static_cast( + DWRITE_GLYPH_IMAGE_FORMATS_COLR | + DWRITE_GLYPH_IMAGE_FORMATS_SVG | + DWRITE_GLYPH_IMAGE_FORMATS_PNG | + DWRITE_GLYPH_IMAGE_FORMATS_JPEG | + DWRITE_GLYPH_IMAGE_FORMATS_TIFF | + DWRITE_GLYPH_IMAGE_FORMATS_PREMULTIPLIED_B8G8R8A8); + + RefPtr fontFace2; + UINT32 palette_count = 0; + if (SUCCEEDED(scaled_font->dwriteface->QueryInterface(&fontFace2))) + palette_count = fontFace2->GetColorPaletteCount(); + + UINT32 palette_index = CAIRO_COLOR_PALETTE_DEFAULT; + if (scaled_font->base.options.palette_index < palette_count) + palette_index = scaled_font->base.options.palette_index; + + hr = DWriteFactory::Instance4()->TranslateColorGlyphRun( + origin, + &run, + NULL, /* glyphRunDescription */ + supported_formats, + dwrite_font_face->measuring_mode, + &matrix, + palette_index, + &run_enumerator); + + if (hr == DWRITE_E_NOCOLOR) { + /* No color glyphs */ + scaled_glyph->color_glyph = FALSE; + scaled_glyph->color_glyph_set = TRUE; + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + if (FAILED(hr)) + return _cairo_dwrite_error (hr, "TranslateColorGlyphRun failed"); + + /* We have a color glyph(s). Use Direct2D to render it to a bitmap */ + if (!WICImagingFactory::Instance() || !D2DFactory::Instance()) + return _cairo_dwrite_error (hr, "Instance failed"); + + RefPtr bitmap; + hr = WICImagingFactory::Instance()->CreateBitmap ((UINT)width, + (UINT)height, + GUID_WICPixelFormat32bppPBGRA, + WICBitmapCacheOnLoad, + &bitmap); + if (FAILED(hr)) + return _cairo_dwrite_error (hr, "CreateBitmap failed"); + + D2D1_RENDER_TARGET_PROPERTIES properties = D2D1::RenderTargetProperties( + D2D1_RENDER_TARGET_TYPE_DEFAULT, + D2D1::PixelFormat( + DXGI_FORMAT_B8G8R8A8_UNORM, + D2D1_ALPHA_MODE_PREMULTIPLIED), + 0, + 0, + D2D1_RENDER_TARGET_USAGE_NONE, + D2D1_FEATURE_LEVEL_DEFAULT); + + RefPtr rt; + hr = D2DFactory::Instance()->CreateWicBitmapRenderTarget (bitmap, properties, &rt); + if (FAILED(hr)) + return _cairo_dwrite_error (hr, "CreateWicBitmapRenderTarget failed"); + + RefPtr dc4; + hr = rt->QueryInterface(&dc4); + if (FAILED(hr)) + return _cairo_dwrite_error (hr, "QueryInterface(&dc4) failed"); + + RefPtr foreground_color_brush; + dc4->CreateSolidColorBrush( + D2D1::ColorF(foreground_color->red, + foreground_color->green, + foreground_color->blue, + foreground_color->alpha), &foreground_color_brush); + + RefPtr color_brush; + dc4->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::Black), &color_brush); + + dc4->SetDpi(96, 96); /* 1 unit = 1 pixel */ + rt->SetTransform(D2D1::Matrix3x2F(matrix.m11, + matrix.m12, + matrix.m21, + matrix.m22, + matrix.dx, + matrix.dy)); + + dc4->BeginDraw(); + dc4->Clear(NULL); /* Transparent black */ + + while (true) { + BOOL have_run; + hr = run_enumerator->MoveNext(&have_run); + if (FAILED(hr) || !have_run) + break; + + DWRITE_COLOR_GLYPH_RUN1_WORKAROUND const* color_run; + hr = run_enumerator->GetCurrentRun(reinterpret_cast(&color_run)); + if (FAILED(hr)) + return _cairo_dwrite_error (hr, "GetCurrentRun failed"); + + switch (color_run->glyphImageFormat) { + case DWRITE_GLYPH_IMAGE_FORMATS_PNG: + case DWRITE_GLYPH_IMAGE_FORMATS_JPEG: + case DWRITE_GLYPH_IMAGE_FORMATS_TIFF: + case DWRITE_GLYPH_IMAGE_FORMATS_PREMULTIPLIED_B8G8R8A8: + /* Bitmap glyphs */ + dc4->DrawColorBitmapGlyphRun(color_run->glyphImageFormat, + origin, + &color_run->glyphRun, + dwrite_font_face->measuring_mode, + D2D1_COLOR_BITMAP_GLYPH_SNAP_OPTION_DEFAULT); + break; + + case DWRITE_GLYPH_IMAGE_FORMATS_SVG: + /* SVG glyphs */ + dc4->DrawSvgGlyphRun(origin, + &color_run->glyphRun, + foreground_color_brush, + nullptr, + palette_index, + dwrite_font_face->measuring_mode); + uses_foreground_color = TRUE; + break; + case DWRITE_GLYPH_IMAGE_FORMATS_TRUETYPE: + case DWRITE_GLYPH_IMAGE_FORMATS_CFF: + case DWRITE_GLYPH_IMAGE_FORMATS_COLR: + /* Outline glyphs */ + if (color_run->paletteIndex == 0xFFFF) { + D2D1_COLOR_F color = foreground_color_brush->GetColor(); + color_brush->SetColor(&color); + uses_foreground_color = TRUE; + } else { + double red, green, blue, alpha; + cairo_status_t status; + status = cairo_font_options_get_custom_palette_color (&scaled_font->base.options, + color_run->paletteIndex, + &red, &blue, &green, &alpha); + if (status == CAIRO_STATUS_SUCCESS) { + color_brush->SetColor(D2D1::ColorF(red, blue, green, alpha)); + } else { + color_brush->SetColor(color_run->runColor); + } + } + + dc4->DrawGlyphRun(origin, + &color_run->glyphRun, + color_run->glyphRunDescription, + color_brush, + dwrite_font_face->measuring_mode); + case DWRITE_GLYPH_IMAGE_FORMATS_NONE: + break; + } + } + + hr = dc4->EndDraw(); + if (FAILED(hr)) + return _cairo_dwrite_error (hr, "EndDraw failed"); + + cairo_surface_t *image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height); + int stride = cairo_image_surface_get_stride (image); + WICRect rect = { 0, 0, width, height }; + bitmap->CopyPixels(&rect, + stride, + height * stride, + cairo_image_surface_get_data (image)); + cairo_surface_mark_dirty (image); + cairo_surface_set_device_offset (image, -x1, -y1); + _cairo_scaled_glyph_set_color_surface (scaled_glyph, + &scaled_font->base, + (cairo_image_surface_t *) image, + uses_foreground_color ? foreground_color : NULL); + scaled_glyph->color_glyph = TRUE; + scaled_glyph->color_glyph_set = TRUE; + + return CAIRO_INT_STATUS_SUCCESS; +} + +// Helper for OS versions up to Windows 8 +static cairo_int_status_t +init_glyph_surface_fallback_a8 (cairo_dwrite_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph, + int width, + int height, + double x1, + double y1, + DWRITE_MATRIX *matrix, + DWRITE_GLYPH_RUN *run) +{ + RefPtr bitmap; + HRESULT hr; + + hr = WICImagingFactory::Instance()->CreateBitmap ((UINT)width, + (UINT)height, + GUID_WICPixelFormat8bppAlpha, + WICBitmapCacheOnLoad, + &bitmap); + if (FAILED(hr)) + return _cairo_dwrite_error (hr, "CreateBitmap failed"); + + D2D1_RENDER_TARGET_PROPERTIES properties = D2D1::RenderTargetProperties( + D2D1_RENDER_TARGET_TYPE_DEFAULT, + D2D1::PixelFormat( + DXGI_FORMAT_A8_UNORM, + D2D1_ALPHA_MODE_PREMULTIPLIED), + 0, + 0, + D2D1_RENDER_TARGET_USAGE_NONE, + D2D1_FEATURE_LEVEL_DEFAULT); + + RefPtr rt; + hr = D2DFactory::Instance()->CreateWicBitmapRenderTarget (bitmap, properties, &rt); + if (FAILED(hr)) + return _cairo_dwrite_error (hr, "CreateWicBitmapRenderTarget failed"); + + RefPtr brush; + hr = rt->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::Black, 1.0), &brush); + + rt->BeginDraw(); + + rt->SetTransform(*(D2D1_MATRIX_3X2_F*)matrix); + + rt->DrawGlyphRun({0, 0}, run, brush, scaled_font->measuring_mode); + + hr = rt->EndDraw(); + if (FAILED(hr)) + return _cairo_dwrite_error (hr, "EndDraw failed"); + + // TODO: rt->Flush()? + + cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_A8, width, height); + if (cairo_surface_status (surface)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + // Tell pixman that it should use component alpha blending when the surface is + // used as a source + pixman_image_set_component_alpha (((cairo_image_surface_t*)surface)->pixman_image, TRUE); + + int stride = cairo_image_surface_get_stride (surface); + WICRect rect = { 0, 0, width, height }; + bitmap->CopyPixels(&rect, + stride, + height * stride, + cairo_image_surface_get_data (surface)); + cairo_surface_mark_dirty (surface); + cairo_surface_set_device_offset (surface, -x1, -y1); + _cairo_scaled_glyph_set_surface (scaled_glyph, + &scaled_font->base, + (cairo_image_surface_t*)surface); + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_dwrite_scaled_font_init_glyph_surface (cairo_dwrite_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph) +{ + HRESULT hr; + + double x1 = _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.x); + double y1 = _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.y); + double x2 = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.x); + double y2 = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.y); + int width = (int)(x2 - x1); + int height = (int)(y2 - y1); + + if (width <= 0) + width = 1; + if (height <= 0) + height = 1; + + FLOAT advance = 0; + UINT16 index = (UINT16)_cairo_scaled_glyph_index (scaled_glyph); + DWRITE_GLYPH_OFFSET offset; + double x = -x1 + .25 * _cairo_scaled_glyph_xphase (scaled_glyph); + double y = -y1 + .25 * _cairo_scaled_glyph_yphase (scaled_glyph); + + /* We transform by the inverse transformation here. This will put our glyph + * locations in the space in which we draw. Which is later transformed by + * the transformation matrix that we use. This will transform the + * glyph positions back to where they were before when drawing, but the + * glyph shapes will be transformed by the transformation matrix. */ + cairo_matrix_transform_point(&scaled_font->mat_inverse, &x, &y); + offset.advanceOffset = (FLOAT)x; + offset.ascenderOffset = -(FLOAT)y; /* Y axis is inverted */ + + DWRITE_MATRIX matrix = _cairo_dwrite_matrix_from_matrix(&scaled_font->mat); + + DWRITE_GLYPH_RUN run; + run.glyphCount = 1; + run.glyphAdvances = &advance; + run.fontFace = scaled_font->dwriteface; + run.fontEmSize = 1.0f; + run.bidiLevel = 0; + run.glyphIndices = &index; + run.isSideways = FALSE; + run.glyphOffsets = &offset; + + // Reduce the many Cairo antialias values to the + // three we actually care about: NONE, GRAY, RGB + enum { + ANTIALIAS_NONE, + ANTIALIAS_GRAY, + ANTIALIAS_CLEARTYPE, + } antialias = ANTIALIAS_CLEARTYPE; + + switch (scaled_font->antialias_mode) { + case CAIRO_ANTIALIAS_NONE: + antialias = ANTIALIAS_NONE; + break; + case CAIRO_ANTIALIAS_FAST: + case CAIRO_ANTIALIAS_GRAY: + antialias = ANTIALIAS_GRAY; + break; + case CAIRO_ANTIALIAS_DEFAULT: + case CAIRO_ANTIALIAS_GOOD: + case CAIRO_ANTIALIAS_BEST: + case CAIRO_ANTIALIAS_SUBPIXEL: + antialias = ANTIALIAS_CLEARTYPE; + break; + } + + // Set DWrite rendering options + + DWRITE_RENDERING_MODE rendering_mode; + DWRITE_RENDERING_MODE1 rendering_mode1; + DWRITE_TEXT_ANTIALIAS_MODE text_antialias_mode; + DWRITE_TEXTURE_TYPE texture_type; + + switch (antialias) { + case ANTIALIAS_NONE: + rendering_mode1 = DWRITE_RENDERING_MODE1_ALIASED; + rendering_mode = DWRITE_RENDERING_MODE_ALIASED; + text_antialias_mode = DWRITE_TEXT_ANTIALIAS_MODE_GRAYSCALE; + texture_type = DWRITE_TEXTURE_ALIASED_1x1; + break; + case ANTIALIAS_GRAY: + rendering_mode1 = DWRITE_RENDERING_MODE1_NATURAL_SYMMETRIC; + rendering_mode = DWRITE_RENDERING_MODE_NATURAL_SYMMETRIC; + text_antialias_mode = DWRITE_TEXT_ANTIALIAS_MODE_GRAYSCALE; + texture_type = DWRITE_TEXTURE_ALIASED_1x1; + break; + case ANTIALIAS_CLEARTYPE: + rendering_mode1 = DWRITE_RENDERING_MODE1_NATURAL_SYMMETRIC; + rendering_mode = DWRITE_RENDERING_MODE_NATURAL_SYMMETRIC; + text_antialias_mode = DWRITE_TEXT_ANTIALIAS_MODE_CLEARTYPE; + texture_type = DWRITE_TEXTURE_CLEARTYPE_3x1; + break; + } + + DWRITE_GRID_FIT_MODE grid_fit_mode = DWRITE_GRID_FIT_MODE_DEFAULT; + + switch (cairo_font_options_get_hint_style (&scaled_font->base.options)) { + case CAIRO_HINT_STYLE_DEFAULT: + grid_fit_mode = DWRITE_GRID_FIT_MODE_DEFAULT; + case CAIRO_HINT_STYLE_NONE: + grid_fit_mode = DWRITE_GRID_FIT_MODE_DISABLED; + case CAIRO_HINT_STYLE_SLIGHT: + case CAIRO_HINT_STYLE_MEDIUM: + case CAIRO_HINT_STYLE_FULL: + grid_fit_mode = DWRITE_GRID_FIT_MODE_ENABLED; + } + + cairo_subpixel_order_t subpixel_order; + subpixel_order = cairo_font_options_get_subpixel_order (&scaled_font->base.options); + + bool subpixel_order_is_vertical = false; + if (antialias == ANTIALIAS_CLEARTYPE) { + switch (subpixel_order) { + case CAIRO_SUBPIXEL_ORDER_DEFAULT: + case CAIRO_SUBPIXEL_ORDER_RGB: + case CAIRO_SUBPIXEL_ORDER_BGR: + break; + case CAIRO_SUBPIXEL_ORDER_VRGB: + case CAIRO_SUBPIXEL_ORDER_VBGR: + subpixel_order_is_vertical = true; + break; + } + } + + if (subpixel_order_is_vertical) { + // DirectWrite does not support vertical pixel geometries. + // As a workaround, apply a simmetry which swaps x and y + // coordinates, then re-swap while copying the back into + // the image surface + + // swap the two rows + std::swap (matrix.m11, matrix.m21); + std::swap (matrix.m12, matrix.m22); + } + + RefPtr dwrite_glyph_run_analysis; + if (DWriteFactory::Instance3()) { + hr = DWriteFactory::Instance3()->CreateGlyphRunAnalysis(&run, + &matrix, + rendering_mode1, + scaled_font->measuring_mode, + grid_fit_mode, + text_antialias_mode, + 0, // baselineOriginX, + 0, // baselineOriginY, + &dwrite_glyph_run_analysis); + } + else if (DWriteFactory::Instance2()) { + hr = DWriteFactory::Instance2()->CreateGlyphRunAnalysis(&run, + &matrix, + rendering_mode, + scaled_font->measuring_mode, + grid_fit_mode, + text_antialias_mode, + 0, // baselineOriginX, + 0, // baselineOriginY, + &dwrite_glyph_run_analysis); + } + else { + if (antialias == ANTIALIAS_GRAY) { + // IDWriteGlyphRunAnalysis supports gray-scale antialiasing only when + // created from IDWriteFactory2 or later. If we have IDWriteFactory + // only, fallback to rendering with Direct2D on A8 targets. + return init_glyph_surface_fallback_a8 (scaled_font, scaled_glyph, + width, height, x1, y1, &matrix, &run); + } + + hr = DWriteFactory::Instance()->CreateGlyphRunAnalysis(&run, 1, + &matrix, + rendering_mode, + scaled_font->measuring_mode, + 0, // baselineOriginX, + 0, // baselineOriginY, + &dwrite_glyph_run_analysis); + } + if (FAILED(hr)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + cairo_format_t surface_format = antialias == ANTIALIAS_NONE ? CAIRO_FORMAT_A1 : + antialias == ANTIALIAS_GRAY ? CAIRO_FORMAT_A8 : + CAIRO_FORMAT_ARGB32; + + cairo_surface_t *surface = cairo_image_surface_create (surface_format, width, height); + if (cairo_surface_status (surface)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + // Tell pixman that it should use component alpha blending when the surface is + // used as a source + pixman_image_set_component_alpha (((cairo_image_surface_t*)surface)->pixman_image, TRUE); + + // That's probably not needed right after creation + cairo_surface_flush (surface); + unsigned char *surface_data = cairo_image_surface_get_data (surface); + int surface_stride = cairo_image_surface_get_stride (surface); + + UINT32 dwrite_data_size; + BYTE *dwrite_data; + RECT dwrite_rect = { + 0, // left + 0, // top + width, // right + height // bottom + }; + + if (subpixel_order_is_vertical) { + std::swap (dwrite_rect.right, + dwrite_rect.bottom); + } + + // Whether IDWriteGlyphRunAnalysis::CreateAlphaTexture() can render directly + // on the cairo image surface (because the pixel formats match) or a separate + // buffer is needed + bool render_is_direct; + + switch (antialias) { + case ANTIALIAS_NONE: + { + dwrite_data_size = width * height; //TODO: check overflow + + dwrite_data = (BYTE*) _cairo_malloc (dwrite_data_size); + if (!dwrite_data) + return CAIRO_INT_STATUS_UNSUPPORTED; + + render_is_direct = false; + break; + } + case ANTIALIAS_GRAY: + { + // The image surface may have a stride that's bigger than width- + // account for that by passing stride as width to DWrite. Note: + // stride is a byte-size, but here pixel-size is exactly 1 byte. + dwrite_rect.right = cairo_image_surface_get_stride (surface); + + dwrite_data_size = dwrite_rect.right * height; //TODO: check overflow + dwrite_data = static_cast(surface_data); + + render_is_direct = true; + break; + } + case ANTIALIAS_CLEARTYPE: + { + dwrite_data_size = 3 * width * height; //TODO: check overflow + + dwrite_data = (BYTE*) _cairo_malloc (dwrite_data_size); + if (!dwrite_data) + return CAIRO_INT_STATUS_UNSUPPORTED; + + render_is_direct = false; + break; + } + } + + hr = dwrite_glyph_run_analysis->CreateAlphaTexture(texture_type, &dwrite_rect, dwrite_data, dwrite_data_size); + if (FAILED (hr)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + // Most of the code here was copied and adapted from cairoft-font.c + switch (antialias) { + case ANTIALIAS_NONE: + { + unsigned char *src = static_cast(dwrite_data); + unsigned char *dst = surface_data; + + for (int i = 0; i < height; i++) { + unsigned char *d = dst; + + for (int j = 0; j < width / 8; j++) { + *d = (src[0] ? (1 << 0) : 0) + + (src[1] ? (1 << 1) : 0) + + (src[2] ? (1 << 2) : 0) + + (src[3] ? (1 << 3) : 0) + + (src[4] ? (1 << 4) : 0) + + (src[5] ? (1 << 5) : 0) + + (src[6] ? (1 << 6) : 0) + + (src[7] ? (1 << 7) : 0); + + d++; + src += 8; + } + + if (width % 8 != 0) { + *d = 0; + + for (int k = 0; k < width % 8; k++) { + *d += (src[k] ? (1 << k) : 0); + } + + d++; + src += (width % 8); + } + + dst += surface_stride; + } + break; + } + case ANTIALIAS_GRAY: + { + // Nothing to do + break; + } + case ANTIALIAS_CLEARTYPE: + { + unsigned char *src = static_cast(dwrite_data); + unsigned char *dst = surface_data; + + // The alpha channel is unused for component-alpha blending. + // Here we set the alpha channel anyway so that things work + // even in case of normal blending (but one likely gets some + // color fringing) + + switch (subpixel_order) { + case CAIRO_SUBPIXEL_ORDER_DEFAULT: + case CAIRO_SUBPIXEL_ORDER_RGB: + { + for (int i = 0; i < height; i++) { + UINT32 *d = reinterpret_cast(dst); + + for (int j = 0; j < width; j++) { + // CAIRO_FORMAT_ARGB32 is BGRA on little-endian + *d = (src[2] << 0) + + (src[1] << 8) + + (src[0] << 16) + + (src[1] << 24); // unused + + d++; + src += 3; + } + + dst += surface_stride; + } + } + break; + case CAIRO_SUBPIXEL_ORDER_BGR: + { + for (int i = 0; i < height; i++) { + UINT32 *d = reinterpret_cast(dst); + + for (int j = 0; j < width; j++) { + *d = (src[0] << 0) + + (src[1] << 8) + + (src[2] << 16) + + (src[1] << 24); // unused + + d++; + src += 3; + } + + dst += surface_stride; + } + } + break; + case CAIRO_SUBPIXEL_ORDER_VRGB: + { + size_t p; + + for (int i = 0; i < height; i++) { + UINT32 *d = reinterpret_cast(dst); + + p = i * 3; + for (int j = 0; j < width; j++) { + *d = (src[p + 2] << 0) + + (src[p + 1] << 8) + + (src[p + 0] << 16) + + (src[p + 1] << 24); // unused + + d++; + p += 3 * height; + } + + dst += surface_stride; + } + } + break; + case CAIRO_SUBPIXEL_ORDER_VBGR: + { + size_t p; + + for (int i = 0; i < height; i++) { + UINT32 *d = reinterpret_cast(dst); + + p = i * 3; + for (int j = 0; j < width; j++) { + *d = (src[p + 0] << 0) + + (src[p + 1] << 8) + + (src[p + 2] << 16) + + (src[p + 1] << 24); // unused + + d++; + p += 3 * height; + } + + dst += surface_stride; + } + } + break; + } + + break; + } + } + + // That's probably not needed. cairoft-font.c doesn't do that + cairo_surface_mark_dirty (surface); + + if (!render_is_direct) { + free (dwrite_data); + } + + cairo_surface_set_device_offset (surface, -x1, -y1); + _cairo_scaled_glyph_set_surface (scaled_glyph, + &scaled_font->base, + (cairo_image_surface_t*)surface); + + return CAIRO_INT_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_dwrite_load_truetype_table(void *scaled_font, + unsigned long tag, + long offset, + unsigned char *buffer, + unsigned long *length) +{ + cairo_dwrite_scaled_font_t *dwritesf = static_cast(scaled_font); + + const void *data; + UINT32 size; + void *tableContext; + BOOL exists; + HRESULT hr; + hr = dwritesf->dwriteface->TryGetFontTable (be32_to_cpu (tag), + &data, + &size, + &tableContext, + &exists); + if (FAILED(hr)) + return _cairo_dwrite_error (hr, "TryGetFontTable failed"); + + if (!exists) { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + if (buffer && *length && (UINT32)offset < size) { + size = MIN(size - (UINT32)offset, *length); + memcpy(buffer, (const char*)data + offset, size); + } + *length = size; + + if (tableContext) { + dwritesf->dwriteface->ReleaseFontTable(tableContext); + } + return (cairo_int_status_t)CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_dwrite_is_synthetic(void *scaled_font, + cairo_bool_t *is_synthetic) +{ + cairo_dwrite_scaled_font_t *dwritesf = static_cast(scaled_font); + HRESULT hr; + cairo_int_status_t status; + + if (dwritesf->dwriteface->GetSimulations() != DWRITE_FONT_SIMULATIONS_NONE) { + *is_synthetic = FALSE; + return CAIRO_INT_STATUS_SUCCESS; + } + + RefPtr fontFace5; + if (FAILED(dwritesf->dwriteface->QueryInterface(&fontFace5))) { + /* If IDWriteFontFace5 is not available, assume this version of + * DirectWrite does not support variations. + */ + *is_synthetic = FALSE; + return CAIRO_INT_STATUS_SUCCESS; + } + + if (!fontFace5->HasVariations()) { + *is_synthetic = FALSE; + return CAIRO_INT_STATUS_SUCCESS; + } + + RefPtr fontResource; + hr = fontFace5->GetFontResource(&fontResource); + if (FAILED(hr)) + return _cairo_dwrite_error (hr, "GetFontResource failed"); + + UINT32 axis_count = fontResource->GetFontAxisCount(); + DWRITE_FONT_AXIS_VALUE *axis_defaults = new DWRITE_FONT_AXIS_VALUE[axis_count]; + DWRITE_FONT_AXIS_VALUE *axis_values = new DWRITE_FONT_AXIS_VALUE[axis_count]; + + hr = fontResource->GetDefaultFontAxisValues(axis_defaults, axis_count); + if (FAILED(hr)) { + status = _cairo_dwrite_error (hr, "GetDefaultFontAxisValues failed"); + goto cleanup; + } + + hr = fontFace5->GetFontAxisValues(axis_values, axis_count); + if (FAILED(hr)) { + status = _cairo_dwrite_error (hr, "GetFontAxisValues failed"); + goto cleanup; + } + + /* The DirectWrite documentation does not state if the tags of the returned + * defaults and values arrays are in the same order. So assume they are not. + */ + *is_synthetic = FALSE; + status = CAIRO_INT_STATUS_SUCCESS; + for (UINT32 i = 0; i< axis_count; i++) { + for (UINT32 j = 0; j < axis_count; j++) { + if (axis_values[i].axisTag == axis_defaults[j].axisTag) { + if (axis_values[i].value != axis_defaults[j].value) { + *is_synthetic = TRUE; + goto cleanup; + } + break; + } + } + } + + cleanup: + delete[] axis_defaults; + delete[] axis_values; + + return status; +} + +static cairo_bool_t +_cairo_dwrite_has_color_glyphs(void *scaled_font) +{ + cairo_dwrite_scaled_font_t *dwritesf = static_cast(scaled_font); + + return ((cairo_dwrite_font_face_t *)dwritesf->base.font_face)->have_color; +} + +/** + * cairo_dwrite_font_face_create_for_dwrite_fontface: + * @dwrite_font_face: A pointer to an #IDWriteFontFace specifying the + * DWrite font to use. + * + * Creates a new font for the DWrite font backend based on a + * DWrite font face. This font can then be used with + * cairo_set_font_face() or cairo_scaled_font_create(). + * + * Here is an example of how this function might be used: + * + * #include <cairo-dwrite.h> + * #include <dwrite.h> + * + * IDWriteFactory* dWriteFactory = NULL; + * HRESULT hr = DWriteCreateFactory( + * DWRITE_FACTORY_TYPE_SHARED, + * __uuidof(IDWriteFactory), + * reinterpret_cast<IUnknown**>(&dWriteFactory)); + * + * IDWriteFontCollection *systemCollection; + * hr = dWriteFactory->GetSystemFontCollection(&systemCollection); + * + * UINT32 idx; + * BOOL found; + * systemCollection->FindFamilyName(L"Segoe UI Emoji", &idx, &found); + * + * IDWriteFontFamily *family; + * systemCollection->GetFontFamily(idx, &family); + * + * IDWriteFont *dwritefont; + * DWRITE_FONT_WEIGHT weight = DWRITE_FONT_WEIGHT_NORMAL; + * DWRITE_FONT_STYLE style = DWRITE_FONT_STYLE_NORMAL; + * hr = family->GetFirstMatchingFont(weight, DWRITE_FONT_STRETCH_NORMAL, style, &dwritefont); + * + * IDWriteFontFace *dwriteface; + * hr = dwritefont->CreateFontFace(&dwriteface); + * + * cairo_font_face_t *face; + * face = cairo_dwrite_font_face_create_for_dwrite_fontface(dwriteface); + * cairo_set_font_face(cr, face); + * cairo_set_font_size(cr, 70); + * cairo_move_to(cr, 100, 100); + * cairo_show_text(cr, "😃"); + * + * + * Note: When printing a DWrite font to a + * #CAIRO_SURFACE_TYPE_WIN32_PRINTING surface, the printing surface + * will substitute each DWrite font with a Win32 font created from the same + * underlying font file. If the matching font file can not be found, + * the #CAIRO_SURFACE_TYPE_WIN32_PRINTING surface will convert each + * glyph to a filled path. If a DWrite font was not created from a system + * font, it is recommended that the font used to create the DWrite + * font be made available to GDI to avoid the undesirable fallback + * to emitting paths. This can be achieved using the GDI font loading functions + * such as AddFontMemResourceEx(). + * + * Return value: a newly created #cairo_font_face_t. Free with + * cairo_font_face_destroy() when you are done using it. + * + * Since: 1.18 + **/ +cairo_font_face_t * +cairo_dwrite_font_face_create_for_dwrite_fontface (IDWriteFontFace *dwrite_font_face) +{ + IDWriteFontFace *dwriteface = static_cast(dwrite_font_face); + // Must do malloc and not C++ new, since Cairo frees this. + cairo_dwrite_font_face_t *face = (cairo_dwrite_font_face_t *)_cairo_malloc(sizeof(cairo_dwrite_font_face_t)); + if (unlikely (face == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_font_face_t*)&_cairo_font_face_nil; + } + + dwriteface->AddRef(); + face->dwriteface = dwriteface; + face->have_color = false; + face->rendering_params = NULL; + face->measuring_mode = DWRITE_MEASURING_MODE_NATURAL; + + /* Ensure IDWriteFactory4 is available before enabling color fonts */ + if (DWriteFactory::Instance4()) { + RefPtr fontFace2; + if (SUCCEEDED(dwriteface->QueryInterface(&fontFace2))) { + if (fontFace2->IsColorFont()) + face->have_color = true; + } + } + + cairo_font_face_t *font_face; + font_face = (cairo_font_face_t*)face; + _cairo_font_face_init (&((cairo_dwrite_font_face_t*)font_face)->base, &_cairo_dwrite_font_face_backend); + + return font_face; +} + +/** + * cairo_dwrite_font_face_get_rendering_params: + * @font_face: The #cairo_dwrite_font_face_t object to query + * + * Gets the #IDWriteRenderingParams object of @font_face. + * + * Return value: the #IDWriteRenderingParams object or %NULL if none. + * + * Since: 1.18 + **/ +IDWriteRenderingParams * +cairo_dwrite_font_face_get_rendering_params (cairo_font_face_t *font_face) +{ + cairo_dwrite_font_face_t *dwface = reinterpret_cast(font_face); + return dwface->rendering_params; +} + +/** + * cairo_dwrite_font_face_set_rendering_params: + * @font_face: The #cairo_dwrite_font_face_t object to modify + * @params: The #IDWriteRenderingParams object + * + * Sets the #IDWriteRenderingParams object to @font_face. + * This #IDWriteRenderingParams is used to render glyphs if default values of font options are used. + * If non-defalut values of font options are specified when creating a #cairo_scaled_font_t, + * cairo creates a new #IDWriteRenderingParams object for the #cairo_scaled_font_t object by overwriting the corresponding parameters. + * + * Since: 1.18 + **/ +void +cairo_dwrite_font_face_set_rendering_params (cairo_font_face_t *font_face, IDWriteRenderingParams *params) +{ + cairo_dwrite_font_face_t *dwface = reinterpret_cast(font_face); + if (dwface->rendering_params) + dwface->rendering_params->Release(); + dwface->rendering_params = params; + if (dwface->rendering_params) + dwface->rendering_params->AddRef(); +} + +/** + * cairo_dwrite_font_face_get_measuring_mode: + * @font_face: The #cairo_dwrite_font_face_t object to query + * + * Gets the #DWRITE_MEASURING_MODE enum of @font_face. + * + * Return value: The #DWRITE_MEASURING_MODE enum of @font_face. + * + * Since: 1.18 + **/ +DWRITE_MEASURING_MODE +cairo_dwrite_font_face_get_measuring_mode (cairo_font_face_t *font_face) +{ + cairo_dwrite_font_face_t *dwface = reinterpret_cast(font_face); + return dwface->measuring_mode; +} + +/** + * cairo_dwrite_font_face_set_measuring_mode: + * @font_face: The #cairo_dwrite_font_face_t object to modify + * @mode: The #DWRITE_MEASURING_MODE enum. + * + * Sets the #DWRITE_MEASURING_MODE enum to @font_face. + * + * Since: 1.18 + **/ +void +cairo_dwrite_font_face_set_measuring_mode (cairo_font_face_t *font_face, DWRITE_MEASURING_MODE mode) +{ + cairo_dwrite_font_face_t *dwface = reinterpret_cast(font_face); + dwface->measuring_mode = mode; +} + +static cairo_int_status_t +_dwrite_draw_glyphs_to_gdi_surface_gdi(cairo_win32_surface_t *surface, + DWRITE_MATRIX *transform, + DWRITE_GLYPH_RUN *run, + COLORREF color, + cairo_dwrite_scaled_font_t *scaled_font, + const RECT &area) +{ + RefPtr gdiInterop; + DWriteFactory::Instance()->GetGdiInterop(&gdiInterop); + RefPtr rt; + HRESULT hr; + + hr = gdiInterop->CreateBitmapRenderTarget(surface->dc, + area.right - area.left, + area.bottom - area.top, + &rt); + + if (FAILED(hr)) { + if (hr == E_OUTOFMEMORY) { + return (cairo_int_status_t)CAIRO_STATUS_NO_MEMORY; + } else { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + } + + /* + * We set the number of pixels per DIP to 1.0. This is because we always want + * to draw in device pixels, and not device independent pixels. On high DPI + * systems this value will be higher than 1.0 and automatically upscale + * fonts, we don't want this since we do our own upscaling for various reasons. + */ + rt->SetPixelsPerDip(1.0); + + float x = 0, y = 0; + if (transform) { + DWRITE_MATRIX matrix = *transform; + matrix.dx -= area.left; + matrix.dy -= area.top; + rt->SetCurrentTransform(&matrix); + } else { + x = (float) -area.left; + y = (float) -area.top; + } + BitBlt(rt->GetMemoryDC(), + 0, 0, + area.right - area.left, area.bottom - area.top, + surface->dc, + area.left, area.top, + SRCCOPY | NOMIRRORBITMAP); + rt->DrawGlyphRun(x, y, scaled_font->measuring_mode, run, scaled_font->rendering_params, color); + BitBlt(surface->dc, + area.left, area.top, + area.right - area.left, area.bottom - area.top, + rt->GetMemoryDC(), + 0, 0, + SRCCOPY | NOMIRRORBITMAP); + return CAIRO_INT_STATUS_SUCCESS; +} + +cairo_int_status_t +_dwrite_draw_glyphs_to_gdi_surface_d2d(cairo_win32_surface_t *surface, + DWRITE_MATRIX *transform, + DWRITE_GLYPH_RUN *run, + COLORREF color, + const RECT &area) +{ + HRESULT hr; + + RefPtr rt = D2DFactory::RenderTarget(); + + // XXX don't we need to set RenderingParams on this RenderTarget? + + hr = rt->BindDC(surface->dc, &area); + if (FAILED(hr)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + // D2D uses 0x00RRGGBB not 0x00BBGGRR like COLORREF. + color = (color & 0xFF) << 16 | + (color & 0xFF00) | + (color & 0xFF0000) >> 16; + RefPtr brush; + hr = rt->CreateSolidColorBrush(D2D1::ColorF(color, 1.0), &brush); + if (FAILED(hr)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (transform) { + rt->SetTransform(D2D1::Matrix3x2F(transform->m11, + transform->m12, + transform->m21, + transform->m22, + transform->dx, + transform->dy)); + } + rt->BeginDraw(); + rt->DrawGlyphRun(D2D1::Point2F(0, 0), run, brush); + hr = rt->EndDraw(); + if (transform) { + rt->SetTransform(D2D1::Matrix3x2F::Identity()); + } + if (FAILED(hr)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + return CAIRO_INT_STATUS_SUCCESS; +} + +/* Surface helper function */ +cairo_int_status_t +_cairo_dwrite_show_glyphs_on_surface(void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + cairo_clip_t *clip) +{ + // TODO: Check font & surface for types. + cairo_dwrite_scaled_font_t *dwritesf = reinterpret_cast(scaled_font); + cairo_win32_surface_t *dst = reinterpret_cast(surface); + cairo_int_status_t status; + + /* We can only handle dwrite fonts */ + if (cairo_scaled_font_get_type (scaled_font) != CAIRO_FONT_TYPE_DWRITE) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* We can only handle opaque solid color sources */ + if (!_cairo_pattern_is_opaque_solid(source)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* We can only handle operator SOURCE or OVER with the destination + * having no alpha */ + if (op != CAIRO_OPERATOR_SOURCE && op != CAIRO_OPERATOR_OVER) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* It is vital that dx values for dxy_buf are calculated from the delta of + * _logical_ x coordinates (not user x coordinates) or else the sum of all + * previous dx values may start to diverge from the current glyph's x + * coordinate due to accumulated rounding error. As a result strings could + * be painted shorter or longer than expected. */ + + AutoDWriteGlyphRun run; + run.allocate(num_glyphs); + + BOOL transform = FALSE; + _cairo_dwrite_glyph_run_from_glyphs(glyphs, num_glyphs, dwritesf, &run, &transform); + + cairo_solid_pattern_t *solid_pattern = (cairo_solid_pattern_t *)source; + COLORREF color = RGB(((int)solid_pattern->color.red_short) >> 8, + ((int)solid_pattern->color.green_short) >> 8, + ((int)solid_pattern->color.blue_short) >> 8); + + DWRITE_MATRIX matrix = _cairo_dwrite_matrix_from_matrix(&dwritesf->mat); + + DWRITE_MATRIX *mat; + if (transform) { + mat = &matrix; + } else { + mat = NULL; + } + + RefPtr runAnalysis; + HRESULT hr = DWriteFactory::Instance()-> + CreateGlyphRunAnalysis(&run, 1, mat, + DWRITE_RENDERING_MODE_ALIASED, + dwritesf->measuring_mode, + 0, // baselineOriginX, + 0, // baselineOriginY, + &runAnalysis); + if (FAILED(hr)) + return CAIRO_INT_STATUS_UNSUPPORTED; + RECT fontArea; + hr = runAnalysis->GetAlphaTextureBounds(DWRITE_TEXTURE_ALIASED_1x1, &fontArea); + if (FAILED(hr)) + return CAIRO_INT_STATUS_UNSUPPORTED; + InflateRect(&fontArea, 1, 1); + /* Needed to calculate bounding box for efficient blitting */ + RECT copyArea, dstArea = { 0, 0, dst->extents.width, dst->extents.height }; + IntersectRect(©Area, &fontArea, &dstArea); + +#ifdef CAIRO_TRY_D2D_TO_GDI + status = _dwrite_draw_glyphs_to_gdi_surface_d2d(dst, + mat, + &run, + color, + copyArea); + + if (status == (cairo_status_t)CAIRO_INT_STATUS_UNSUPPORTED) { +#endif + status = _dwrite_draw_glyphs_to_gdi_surface_gdi(dst, + mat, + &run, + color, + dwritesf, + copyArea); + +#ifdef CAIRO_TRY_D2D_TO_GDI + } +#endif + + return status; +} + +/* Check if a specific font table in a DWrite font and a scaled font is identical */ +static cairo_int_status_t +compare_font_tables (cairo_dwrite_font_face_t *dwface, + cairo_scaled_font_t *scaled_font, + unsigned long tag, + cairo_bool_t *match) +{ + unsigned long size; + cairo_int_status_t status; + unsigned char *buffer = NULL; + const void *dw_data; + UINT32 dw_size; + void *dw_tableContext = NULL; + BOOL dw_exists = FALSE; + HRESULT hr; + + hr = dwface->dwriteface->TryGetFontTable(be32_to_cpu (tag), + &dw_data, + &dw_size, + &dw_tableContext, + &dw_exists); + if (FAILED(hr)) + return _cairo_dwrite_error (hr, "TryGetFontTable failed"); + + if (!dw_exists) { + *match = FALSE; + status = CAIRO_INT_STATUS_SUCCESS; + goto cleanup; + } + + status = scaled_font->backend->load_truetype_table (scaled_font, tag, 0, NULL, &size); + if (unlikely(status)) + goto cleanup; + + if (size != dw_size) { + *match = FALSE; + status = CAIRO_INT_STATUS_SUCCESS; + goto cleanup; + } + + buffer = (unsigned char *) _cairo_malloc (size); + if (unlikely (buffer == NULL)) { + status = (cairo_int_status_t) _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto cleanup; + } + + status = scaled_font->backend->load_truetype_table (scaled_font, tag, 0, buffer, &size); + if (unlikely(status)) + goto cleanup; + + *match = memcmp (dw_data, buffer, size) == 0; + status = CAIRO_INT_STATUS_SUCCESS; + +cleanup: + free (buffer); + if (dw_tableContext) + dwface->dwriteface->ReleaseFontTable(dw_tableContext); + + return status; +} + +/* Check if a DWrite font and a scaled font areis identical + * + * DWrite does not allow accessing the entire font data using tag=0 so we compare + * two of the font tables: + * - 'name' table + * - 'head' table since this contains the checksum for the entire font + */ +static cairo_int_status_t +font_tables_match (cairo_dwrite_font_face_t *dwface, + cairo_scaled_font_t *scaled_font, + cairo_bool_t *match) +{ + cairo_int_status_t status; + + status = compare_font_tables (dwface, scaled_font, TT_TAG_name, match); + if (unlikely(status)) + return status; + + if (!*match) + return CAIRO_INT_STATUS_SUCCESS; + + status = compare_font_tables (dwface, scaled_font, TT_TAG_head, match); + if (unlikely(status)) + return status; + + return CAIRO_INT_STATUS_SUCCESS; +} + +/* + * Helper for _cairo_win32_printing_surface_show_glyphs to create a win32 equivalent + * of a dwrite scaled_font so that we can print using ExtTextOut instead of drawing + * paths or blitting glyph bitmaps. + */ +cairo_int_status_t +_cairo_dwrite_scaled_font_create_win32_scaled_font (cairo_scaled_font_t *scaled_font, + cairo_scaled_font_t **new_font) +{ + if (cairo_scaled_font_get_type (scaled_font) != CAIRO_FONT_TYPE_DWRITE) { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + cairo_font_face_t *face = cairo_scaled_font_get_font_face (scaled_font); + if (cairo_font_face_status (face) == CAIRO_STATUS_SUCCESS && + cairo_font_face_get_type (face) == CAIRO_FONT_TYPE_TOY) + { + face = ((cairo_toy_font_face_t *)face)->impl_face; + } + + if (face == NULL || cairo_font_face_get_type (face) != CAIRO_FONT_TYPE_DWRITE) { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + cairo_dwrite_font_face_t *dwface = reinterpret_cast(face); + + RefPtr gdiInterop; + DWriteFactory::Instance()->GetGdiInterop(&gdiInterop); + if (!gdiInterop) { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + /* TODO: use scaled font? */ + + LOGFONTW logfont; + if (FAILED(gdiInterop->ConvertFontFaceToLOGFONT (dwface->dwriteface, &logfont))) { + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + /* DWrite must have been using an outline font, so we want GDI to use the same, + * even if there's also a bitmap face available + */ + logfont.lfOutPrecision = OUT_OUTLINE_PRECIS; + + cairo_font_face_t *win32_face = cairo_win32_font_face_create_for_logfontw (&logfont); + if (cairo_font_face_status (win32_face)) { + cairo_font_face_destroy (win32_face); + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + cairo_matrix_t font_matrix; + cairo_scaled_font_get_font_matrix (scaled_font, &font_matrix); + + cairo_matrix_t ctm; + cairo_scaled_font_get_ctm (scaled_font, &ctm); + + cairo_font_options_t options; + _cairo_font_options_init_default (&options); + cairo_scaled_font_get_font_options (scaled_font, &options); + + cairo_scaled_font_t *font = cairo_scaled_font_create (win32_face, + &font_matrix, + &ctm, + &options); + cairo_font_face_destroy (win32_face); + + if (cairo_scaled_font_status(font)) { + cairo_scaled_font_destroy (font); + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + cairo_bool_t match; + cairo_int_status_t status; + status = font_tables_match (dwface, font, &match); + if (status) { + cairo_scaled_font_destroy (font); + return status; + } + + /* If the font tables aren't equal, then GDI may have failed to + * find the right font and substituted a different font. + */ + if (!match) { +#if 0 + char *ps_name; + char *font_name; + status = _cairo_truetype_read_font_name (scaled_font, &ps_name, &font_name); + printf("dwrite fontname: %s PS name: %s\n", font_name, ps_name); + free (font_name); + free (ps_name); + status = _cairo_truetype_read_font_name (font, &ps_name, &font_name); + printf("win32 fontname: %s PS name: %s\n", font_name, ps_name); + free (font_name); + free (ps_name); +#endif + cairo_scaled_font_destroy (font); + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + *new_font = font; + return CAIRO_INT_STATUS_SUCCESS; +} diff --git a/local/recipes/libs/cairo/source/src/win32/cairo-dwrite-private.hpp b/local/recipes/libs/cairo/source/src/win32/cairo-dwrite-private.hpp new file mode 100644 index 0000000000..7834485f3e --- /dev/null +++ b/local/recipes/libs/cairo/source/src/win32/cairo-dwrite-private.hpp @@ -0,0 +1,236 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2010 Mozilla Foundation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is the Mozilla Foundation + * + * Contributor(s): + * Bas Schouten + */ + +#include "cairoint.h" +#include "cairo-win32-refptr.hpp" +#include +#include + +#ifdef __MINGW32__ +#include "dw-extra.h" +#else +typedef DWRITE_COLOR_GLYPH_RUN1 DWRITE_COLOR_GLYPH_RUN1_WORKAROUND; +#endif + +/* If d2d1_3.h header required for color fonts is not available, + * include our own version containing just the functions we need. + */ + +#if HAVE_D2D1_3_H +#include +#else +#include "d2d1-extra.h" +#endif + +// DirectWrite is not available on all platforms. +typedef HRESULT (WINAPI*DWriteCreateFactoryFunc)( + DWRITE_FACTORY_TYPE factoryType, + REFIID iid, + IUnknown **factory +); + +/* #cairo_scaled_font_t implementation */ +struct _cairo_dwrite_scaled_font { + cairo_scaled_font_t base; + cairo_matrix_t mat; + cairo_matrix_t mat_inverse; + cairo_antialias_t antialias_mode; + IDWriteFontFace *dwriteface; /* Can't use RefPtr because this struct is malloc'd. */ + IDWriteRenderingParams *rendering_params; /* Can't use RefPtr because this struct is malloc'd. */ + DWRITE_MEASURING_MODE measuring_mode; +}; +typedef struct _cairo_dwrite_scaled_font cairo_dwrite_scaled_font_t; + +class DWriteFactory +{ +public: + static RefPtr Instance() + { + if (!mFactoryInstance) { +#ifdef __GNUC__ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wcast-function-type" +#endif + HMODULE dwrite = _cairo_win32_load_library_from_system32 (L"dwrite.dll"); + DWriteCreateFactoryFunc createDWriteFactory = (DWriteCreateFactoryFunc) + GetProcAddress(dwrite, "DWriteCreateFactory"); +#ifdef __GNUC__ +#pragma GCC diagnostic pop +#endif + if (createDWriteFactory) { + HRESULT hr = createDWriteFactory( + DWRITE_FACTORY_TYPE_SHARED, + __uuidof(IDWriteFactory), + reinterpret_cast(&mFactoryInstance)); + assert(SUCCEEDED(hr)); + } + } + return mFactoryInstance; + } + + static RefPtr Instance1() + { + if (!mFactoryInstance1) { + if (Instance()) { + Instance()->QueryInterface(&mFactoryInstance1); + } + } + return mFactoryInstance1; + } + + static RefPtr Instance2() + { + if (!mFactoryInstance2) { + if (Instance()) { + Instance()->QueryInterface(&mFactoryInstance2); + } + } + return mFactoryInstance2; + } + + static RefPtr Instance3() + { + if (!mFactoryInstance3) { + if (Instance()) { + Instance()->QueryInterface(&mFactoryInstance3); + } + } + return mFactoryInstance3; + } + + static RefPtr Instance4() + { + if (!mFactoryInstance4) { + if (Instance()) { + Instance()->QueryInterface(&mFactoryInstance4); + } + } + return mFactoryInstance4; + } + + static RefPtr SystemCollection() + { + if (!mSystemCollection) { + if (Instance()) { + HRESULT hr = Instance()->GetSystemFontCollection(&mSystemCollection); + assert(SUCCEEDED(hr)); + } + } + return mSystemCollection; + } + + static RefPtr FindSystemFontFamily(const WCHAR *aFamilyName) + { + UINT32 idx; + BOOL found; + if (!SystemCollection()) { + return NULL; + } + SystemCollection()->FindFamilyName(aFamilyName, &idx, &found); + if (!found) { + return NULL; + } + + RefPtr family; + SystemCollection()->GetFontFamily(idx, &family); + return family; + } + + static RefPtr DefaultRenderingParams() + { + if (!mDefaultRenderingParams) { + if (Instance()) { + Instance()->CreateRenderingParams(&mDefaultRenderingParams); + } + } + return mDefaultRenderingParams; + } + +private: + static RefPtr mFactoryInstance; + static RefPtr mFactoryInstance1; + static RefPtr mFactoryInstance2; + static RefPtr mFactoryInstance3; + static RefPtr mFactoryInstance4; + static RefPtr mSystemCollection; + static RefPtr mDefaultRenderingParams; +}; + +class AutoDWriteGlyphRun : public DWRITE_GLYPH_RUN +{ + static const int kNumAutoGlyphs = 256; + +public: + AutoDWriteGlyphRun() { + glyphCount = 0; + } + + ~AutoDWriteGlyphRun() { + if (glyphCount > kNumAutoGlyphs) { + delete[] glyphIndices; + delete[] glyphAdvances; + delete[] glyphOffsets; + } + } + + void allocate(int aNumGlyphs) { + glyphCount = aNumGlyphs; + if (aNumGlyphs <= kNumAutoGlyphs) { + glyphIndices = &mAutoIndices[0]; + glyphAdvances = &mAutoAdvances[0]; + glyphOffsets = &mAutoOffsets[0]; + } else { + glyphIndices = new UINT16[aNumGlyphs]; + glyphAdvances = new FLOAT[aNumGlyphs]; + glyphOffsets = new DWRITE_GLYPH_OFFSET[aNumGlyphs]; + } + } + +private: + DWRITE_GLYPH_OFFSET mAutoOffsets[kNumAutoGlyphs]; + FLOAT mAutoAdvances[kNumAutoGlyphs]; + UINT16 mAutoIndices[kNumAutoGlyphs]; +}; + +/* #cairo_font_face_t implementation */ +struct _cairo_dwrite_font_face { + cairo_font_face_t base; + IDWriteFontFace *dwriteface; /* Can't use RefPtr because this struct is malloc'd. */ + cairo_bool_t have_color; + IDWriteRenderingParams *rendering_params; /* Can't use RefPtr because this struct is malloc'd. */ + DWRITE_MEASURING_MODE measuring_mode; +}; +typedef struct _cairo_dwrite_font_face cairo_dwrite_font_face_t; diff --git a/local/recipes/libs/cairo/source/src/win32/cairo-win32-debug.c b/local/recipes/libs/cairo/source/src/win32/cairo-win32-debug.c new file mode 100644 index 0000000000..01410c8969 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/win32/cairo-win32-debug.c @@ -0,0 +1,78 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2012 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Owen Taylor + * Stuart Parmenter + * Vladimir Vukicevic + */ + +#include "cairoint.h" +#include "cairo-win32-private.h" + +#include +#include + +void +_cairo_win32_debug_dump_hrgn (HRGN rgn, char *header) +{ + RGNDATA *rd; + unsigned int z; + + if (header) + fprintf (stderr, "%s\n", header); + + if (rgn == NULL) { + fprintf (stderr, " NULL\n"); + } + + z = GetRegionData(rgn, 0, NULL); + rd = (RGNDATA*) _cairo_malloc (z); + z = GetRegionData(rgn, z, rd); + + fprintf (stderr, " %ld rects, bounds: %ld %ld %ld %ld\n", + rd->rdh.nCount, + rd->rdh.rcBound.left, + rd->rdh.rcBound.top, + rd->rdh.rcBound.right - rd->rdh.rcBound.left, + rd->rdh.rcBound.bottom - rd->rdh.rcBound.top); + + for (z = 0; z < rd->rdh.nCount; z++) { + RECT r = ((RECT*)rd->Buffer)[z]; + fprintf (stderr, " [%d]: [%ld %ld %ld %ld]\n", + z, r.left, r.top, r.right - r.left, r.bottom - r.top); + } + + free(rd); + fflush (stderr); +} diff --git a/local/recipes/libs/cairo/source/src/win32/cairo-win32-device.c b/local/recipes/libs/cairo/source/src/win32/cairo-win32-device.c new file mode 100644 index 0000000000..91ef745882 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/win32/cairo-win32-device.c @@ -0,0 +1,147 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2012 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Owen Taylor + * Stuart Parmenter + * Vladimir Vukicevic + */ + +#include "cairoint.h" + +#include "cairo-atomic-private.h" +#include "cairo-device-private.h" +#include "cairo-win32-private.h" + +#include +#include + +static cairo_device_t *__cairo_win32_device; + +static cairo_status_t +_cairo_win32_device_flush (void *device) +{ + GdiFlush (); + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_win32_device_finish (void *device) +{ +} + +static void +_cairo_win32_device_destroy (void *device) +{ + free (device); +} + +static const cairo_device_backend_t _cairo_win32_device_backend = { + CAIRO_DEVICE_TYPE_WIN32, + + NULL, NULL, /* lock, unlock */ + + _cairo_win32_device_flush, + _cairo_win32_device_finish, + _cairo_win32_device_destroy, +}; + +cairo_device_t * +_cairo_win32_device_get (void) +{ + cairo_win32_device_t *device; + + if (__cairo_win32_device) + return cairo_device_reference (__cairo_win32_device); + + device = _cairo_calloc (sizeof (*device)); + + _cairo_device_init (&device->base, &_cairo_win32_device_backend); + + device->compositor = _cairo_win32_gdi_compositor_get (); + + if (_cairo_atomic_ptr_cmpxchg ((cairo_atomic_intptr_t *)&__cairo_win32_device, NULL, device)) + return cairo_device_reference(&device->base); + + _cairo_win32_device_destroy (device); + return cairo_device_reference (__cairo_win32_device); +} + +unsigned +_cairo_win32_flags_for_dc (HDC dc, cairo_format_t format) +{ + uint32_t flags = 0; + cairo_bool_t is_display = GetDeviceCaps(dc, TECHNOLOGY) == DT_RASDISPLAY; + + if (format == CAIRO_FORMAT_RGB24 || format == CAIRO_FORMAT_ARGB32) + { + int cap = GetDeviceCaps(dc, RASTERCAPS); + if (cap & RC_BITBLT) + flags |= CAIRO_WIN32_SURFACE_CAN_BITBLT; + if (!is_display && GetDeviceCaps(dc, SHADEBLENDCAPS) != SB_NONE) + flags |= CAIRO_WIN32_SURFACE_CAN_ALPHABLEND; + + /* ARGB32 available operations are a strict subset of RGB24 + * available operations. This is because the same GDI functions + * can be used but most of them always reset alpha channel to 0 + * which is bad for ARGB32. + */ + if (format == CAIRO_FORMAT_RGB24) + { + flags |= CAIRO_WIN32_SURFACE_CAN_RGB_BRUSH; + if (cap & RC_STRETCHBLT) + flags |= CAIRO_WIN32_SURFACE_CAN_STRETCHBLT; + if (cap & RC_STRETCHDIB) + flags |= CAIRO_WIN32_SURFACE_CAN_STRETCHDIB; + } + } + + if (is_display) { + flags |= CAIRO_WIN32_SURFACE_IS_DISPLAY; + + /* These will always be possible, but the actual GetDeviceCaps + * calls will return whether they're accelerated or not. + * We may want to use our own (pixman) routines sometimes + * if they're eventually faster, but for now have GDI do + * everything. + */ +#if 0 + flags |= CAIRO_WIN32_SURFACE_CAN_BITBLT; + flags |= CAIRO_WIN32_SURFACE_CAN_ALPHABLEND; + flags |= CAIRO_WIN32_SURFACE_CAN_STRETCHBLT; + flags |= CAIRO_WIN32_SURFACE_CAN_STRETCHDIB; +#endif + } + + return flags; +} diff --git a/local/recipes/libs/cairo/source/src/win32/cairo-win32-display-surface.c b/local/recipes/libs/cairo/source/src/win32/cairo-win32-display-surface.c new file mode 100644 index 0000000000..7f0770b4fd --- /dev/null +++ b/local/recipes/libs/cairo/source/src/win32/cairo-win32-display-surface.c @@ -0,0 +1,1156 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2012 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Owen Taylor + * Stuart Parmenter + * Vladimir Vukicevic + */ + +#include "cairoint.h" + +#include "cairo-clip-private.h" +#include "cairo-composite-rectangles-private.h" +#include "cairo-compositor-private.h" +#include "cairo-damage-private.h" +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-inline.h" +#include "cairo-paginated-private.h" +#include "cairo-pattern-private.h" +#include "cairo-win32-private.h" +#include "cairo-scaled-font-subsets-private.h" +#include "cairo-surface-fallback-private.h" +#include "cairo-surface-backend-private.h" + +#include +#include + +#define PELS_72DPI ((LONG)(72. / 0.0254)) + +/** + * SECTION:cairo-win32 + * @Title: Win32 Surfaces + * @Short_Description: Microsoft Windows surface support + * @See_Also: #cairo_surface_t + * + * The Microsoft Windows surface is used to render cairo graphics to + * Microsoft Windows windows, bitmaps, and printing device contexts. + * + * The surface returned by cairo_win32_printing_surface_create() is of surface + * type %CAIRO_SURFACE_TYPE_WIN32_PRINTING and is a multi-page vector surface + * type. + * + * The surface returned by the other win32 constructors is of surface type + * %CAIRO_SURFACE_TYPE_WIN32 and is a raster surface type. + **/ + +/** + * CAIRO_HAS_WIN32_SURFACE: + * + * Defined if the Microsoft Windows surface backend is available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.0 + **/ + +static const cairo_surface_backend_t cairo_win32_display_surface_backend; + +static cairo_status_t +_create_dc_and_bitmap (cairo_win32_display_surface_t *surface, + HDC original_dc, + cairo_format_t format, + int width, + int height, + unsigned char **bits_out, + int *rowstride_out) +{ + BITMAPINFO *bitmap_info = NULL; + struct { + BITMAPINFOHEADER bmiHeader; + RGBQUAD bmiColors[2]; + } bmi_stack; + void *bits; + + int num_palette = 0; /* Quiet GCC */ + int i; + + surface->win32.dc = NULL; + surface->bitmap = NULL; + surface->is_dib = FALSE; + + switch (format) { + default: + case CAIRO_FORMAT_INVALID: + case CAIRO_FORMAT_RGB16_565: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGBA128F: + return _cairo_error (CAIRO_STATUS_INVALID_FORMAT); + case CAIRO_FORMAT_ARGB32: + case CAIRO_FORMAT_RGB24: + num_palette = 0; + break; + + case CAIRO_FORMAT_A8: + num_palette = 256; + break; + + case CAIRO_FORMAT_A1: + num_palette = 2; + break; + } + + if (num_palette > 2) { + bitmap_info = _cairo_malloc_ab_plus_c (num_palette, sizeof(RGBQUAD), sizeof(BITMAPINFOHEADER)); + if (!bitmap_info) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } else { + bitmap_info = (BITMAPINFO *)&bmi_stack; + } + + bitmap_info->bmiHeader.biSize = sizeof (BITMAPINFOHEADER); + bitmap_info->bmiHeader.biWidth = width == 0 ? 1 : width; + bitmap_info->bmiHeader.biHeight = height == 0 ? -1 : - height; /* top-down */ + bitmap_info->bmiHeader.biSizeImage = 0; + bitmap_info->bmiHeader.biXPelsPerMeter = PELS_72DPI; /* unused here */ + bitmap_info->bmiHeader.biYPelsPerMeter = PELS_72DPI; /* unused here */ + bitmap_info->bmiHeader.biPlanes = 1; + + switch (format) { + case CAIRO_FORMAT_INVALID: + case CAIRO_FORMAT_RGB16_565: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGBA128F: + ASSERT_NOT_REACHED; + /* We can't create real RGB24 bitmaps because something seems to + * break if we do, especially if we don't set up an image + * fallback. It could be a bug with using a 24bpp pixman image + * (and creating one with masks). So treat them like 32bpp. + * Note: This causes problems when using BitBlt/AlphaBlend/etc! + * see end of file. + */ + case CAIRO_FORMAT_RGB24: + case CAIRO_FORMAT_ARGB32: + bitmap_info->bmiHeader.biBitCount = 32; + bitmap_info->bmiHeader.biCompression = BI_RGB; + bitmap_info->bmiHeader.biClrUsed = 0; /* unused */ + bitmap_info->bmiHeader.biClrImportant = 0; + break; + + case CAIRO_FORMAT_A8: + bitmap_info->bmiHeader.biBitCount = 8; + bitmap_info->bmiHeader.biCompression = BI_RGB; + bitmap_info->bmiHeader.biClrUsed = 256; + bitmap_info->bmiHeader.biClrImportant = 0; + + for (i = 0; i < 256; i++) { + bitmap_info->bmiColors[i].rgbBlue = i; + bitmap_info->bmiColors[i].rgbGreen = i; + bitmap_info->bmiColors[i].rgbRed = i; + bitmap_info->bmiColors[i].rgbReserved = 0; + } + break; + + case CAIRO_FORMAT_A1: + bitmap_info->bmiHeader.biBitCount = 1; + bitmap_info->bmiHeader.biCompression = BI_RGB; + bitmap_info->bmiHeader.biClrUsed = 2; + bitmap_info->bmiHeader.biClrImportant = 0; + + for (i = 0; i < 2; i++) { + bitmap_info->bmiColors[i].rgbBlue = i * 255; + bitmap_info->bmiColors[i].rgbGreen = i * 255; + bitmap_info->bmiColors[i].rgbRed = i * 255; + bitmap_info->bmiColors[i].rgbReserved = 0; + } + break; + } + + surface->win32.dc = CreateCompatibleDC (original_dc); + if (!surface->win32.dc) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "CreateCompatibleDC"); + goto FAIL; + } + + surface->bitmap = CreateDIBSection (surface->win32.dc, + bitmap_info, + DIB_RGB_COLORS, + &bits, + NULL, 0); + if (!surface->bitmap) { + _cairo_win32_print_api_error (__FUNCTION__, "CreateDIBSection"); + goto FAIL; + } + + surface->is_dib = TRUE; + + GdiFlush(); + + surface->saved_dc_bitmap = SelectObject (surface->win32.dc, + surface->bitmap); + if (!surface->saved_dc_bitmap) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "SelectObject"); + goto FAIL; + } + + if (bitmap_info && num_palette > 2) + free (bitmap_info); + + if (bits_out) + *bits_out = bits; + + if (rowstride_out) { + /* Windows bitmaps are padded to 32-bit (dword) boundaries */ + switch (format) { + case CAIRO_FORMAT_INVALID: + case CAIRO_FORMAT_RGB16_565: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGBA128F: + ASSERT_NOT_REACHED; + case CAIRO_FORMAT_ARGB32: + case CAIRO_FORMAT_RGB24: + *rowstride_out = 4 * width; + break; + + case CAIRO_FORMAT_A8: + *rowstride_out = (width + 3) & ~3; + break; + + case CAIRO_FORMAT_A1: + *rowstride_out = ((width + 31) & ~31) / 8; + break; + } + } + + surface->win32.flags = _cairo_win32_flags_for_dc (surface->win32.dc, format); + + return CAIRO_STATUS_SUCCESS; + + FAIL: + if (bitmap_info && num_palette > 2) + free (bitmap_info); + + if (surface->saved_dc_bitmap) { + SelectObject (surface->win32.dc, surface->saved_dc_bitmap); + surface->saved_dc_bitmap = NULL; + } + + if (surface->bitmap) { + DeleteObject (surface->bitmap); + surface->bitmap = NULL; + } + + if (surface->win32.dc) { + DeleteDC (surface->win32.dc); + surface->win32.dc = NULL; + } + + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); +} + +static cairo_surface_t * +_cairo_win32_display_surface_create_for_dc (HDC original_dc, + cairo_format_t format, + int width, + int height) +{ + cairo_status_t status; + cairo_device_t *device; + cairo_win32_display_surface_t *surface; + unsigned char *bits; + int rowstride; + + surface = _cairo_calloc (sizeof (*surface)); + if (surface == NULL) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + surface->fallback = NULL; + + status = _create_dc_and_bitmap (surface, original_dc, format, + width, height, + &bits, &rowstride); + if (status) + goto FAIL; + + surface->image = cairo_image_surface_create_for_data (bits, format, + width, height, rowstride); + status = surface->image->status; + if (status) + goto FAIL; + + _cairo_image_surface_set_parent (to_image_surface(surface->image), + &surface->win32.base); + + surface->win32.format = format; + + surface->win32.extents.x = 0; + surface->win32.extents.y = 0; + surface->win32.extents.width = width; + surface->win32.extents.height = height; + surface->win32.x_ofs = 0; + surface->win32.y_ofs = 0; + + surface->initial_clip_rgn = NULL; + surface->had_simple_clip = FALSE; + + device = _cairo_win32_device_get (); + + _cairo_surface_init (&surface->win32.base, + &cairo_win32_display_surface_backend, + device, + _cairo_content_from_format (format), + FALSE); /* is_vector */ + + cairo_device_destroy (device); + + return &surface->win32.base; + + FAIL: + if (surface->bitmap) { + SelectObject (surface->win32.dc, surface->saved_dc_bitmap); + DeleteObject (surface->bitmap); + DeleteDC (surface->win32.dc); + } + free (surface); + + return _cairo_surface_create_in_error (status); +} + +static cairo_surface_t * +_cairo_win32_display_surface_create_similar (void *abstract_src, + cairo_content_t content, + int width, + int height) +{ + cairo_win32_display_surface_t *src = abstract_src; + cairo_format_t format = _cairo_format_from_content (content); + cairo_surface_t *new_surf = NULL; + + /* We force a DIB always if: + * - we need alpha; or + * - the parent is a DIB; or + * - the parent is for printing (because we don't care about the + * bit depth at that point) + * + * We also might end up with a DIB even if a DDB is requested if + * DDB creation failed due to out of memory. + */ + if (!(src->is_dib || content & CAIRO_CONTENT_ALPHA)) { + /* try to create a ddb */ + new_surf = cairo_win32_surface_create_with_ddb (src->win32.dc, CAIRO_FORMAT_RGB24, width, height); + + if (new_surf->status) + new_surf = NULL; + } + + if (new_surf == NULL) { + new_surf = _cairo_win32_display_surface_create_for_dc (src->win32.dc, format, width, height); + } + + return new_surf; +} + +static cairo_surface_t * +_cairo_win32_display_surface_create_similar_image (void *abstract_other, + cairo_format_t format, + int width, + int height) +{ + cairo_win32_display_surface_t *surface = abstract_other; + cairo_image_surface_t *image; + + surface = (cairo_win32_display_surface_t *) + _cairo_win32_display_surface_create_for_dc (surface->win32.dc, + format, width, height); + if (surface->win32.base.status) + return &surface->win32.base; + + /* And clear in order to comply with our user API semantics */ + image = (cairo_image_surface_t *) surface->image; + if (! image->base.is_clear) { + memset (image->data, 0, image->stride * height); + image->base.is_clear = TRUE; + } + + return &image->base; +} + +static cairo_status_t +_cairo_win32_display_surface_finish (void *abstract_surface) +{ + cairo_win32_display_surface_t *surface = abstract_surface; + + if (surface->image && to_image_surface(surface->image)->parent) { + assert (to_image_surface(surface->image)->parent == &surface->win32.base); + /* Unhook ourselves first to avoid the double-unref from the image */ + to_image_surface(surface->image)->parent = NULL; + cairo_surface_finish (surface->image); + cairo_surface_destroy (surface->image); + } + + /* If we created the Bitmap and DC, destroy them */ + if (surface->bitmap) { + SelectObject (surface->win32.dc, surface->saved_dc_bitmap); + DeleteObject (surface->bitmap); + DeleteDC (surface->win32.dc); + } + + _cairo_win32_display_surface_discard_fallback (surface); + + if (surface->initial_clip_rgn) + DeleteObject (surface->initial_clip_rgn); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_image_surface_t * +_cairo_win32_display_surface_map_to_image (void *abstract_surface, + const cairo_rectangle_int_t *extents) +{ + cairo_win32_display_surface_t *surface = abstract_surface; + cairo_status_t status; + + TRACE ((stderr, "%s (surface=%d)\n", + __FUNCTION__, surface->win32.base.unique_id)); + + if (surface->image) + goto done; + + if (surface->fallback == NULL) { + surface->fallback = + _cairo_win32_display_surface_create_for_dc (surface->win32.dc, + surface->win32.format, + surface->win32.extents.x + surface->win32.extents.width, + surface->win32.extents.y + surface->win32.extents.height); + if (unlikely (status = surface->fallback->status)) + goto err; + + if (!BitBlt (to_win32_surface(surface->fallback)->dc, + surface->win32.extents.x, surface->win32.extents.y, + surface->win32.extents.width, + surface->win32.extents.height, + surface->win32.dc, + surface->win32.extents.x + surface->win32.x_ofs, /* Handling multi-monitor... */ + surface->win32.extents.y + surface->win32.y_ofs, /* ... setup on Win32 */ + SRCCOPY)) { + status = _cairo_error (CAIRO_STATUS_DEVICE_ERROR); + goto err; + } + } + + surface = to_win32_display_surface (surface->fallback); +done: + GdiFlush(); + return _cairo_surface_map_to_image (surface->image, extents); + +err: + cairo_surface_destroy (surface->fallback); + surface->fallback = NULL; + + return _cairo_image_surface_create_in_error (status); +} + +static cairo_int_status_t +_cairo_win32_display_surface_unmap_image (void *abstract_surface, + cairo_image_surface_t *image) +{ + cairo_win32_display_surface_t *surface = abstract_surface; + + /* Delay the download until the next flush, which means we also need + * to make sure our sources rare flushed. + */ + TRACE ((stderr, "%s (surface=%d)\n", + __FUNCTION__, to_win32_surface(surface)->base.unique_id)); + + if (surface->fallback) { + cairo_rectangle_int_t r; + + r.x = image->base.device_transform_inverse.x0; + r.y = image->base.device_transform_inverse.y0; + r.width = image->width; + r.height = image->height; + + TRACE ((stderr, "%s: adding damage (%d,%d)x(%d,%d)\n", + __FUNCTION__, r.x, r.y, r.width, r.height)); + surface->fallback->damage = + _cairo_damage_add_rectangle (surface->fallback->damage, &r); + surface = to_win32_display_surface (surface->fallback); + } + + return _cairo_surface_unmap_image (surface->image, image); +} + +static cairo_status_t +_cairo_win32_display_surface_flush (void *abstract_surface, unsigned flags) +{ + cairo_win32_display_surface_t *surface = abstract_surface; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + if (flags) + return CAIRO_STATUS_SUCCESS; + + TRACE ((stderr, "%s (surface=%d)\n", + __FUNCTION__, surface->win32.base.unique_id)); + if (surface->fallback == NULL) + return CAIRO_STATUS_SUCCESS; + + if (surface->fallback->damage) { + cairo_win32_display_surface_t *fallback; + cairo_damage_t *damage; + + damage = _cairo_damage_reduce (surface->fallback->damage); + surface->fallback->damage = NULL; + + fallback = to_win32_display_surface (surface->fallback); + assert (fallback->image); + + TRACE ((stderr, "%s: flushing damage x %d\n", __FUNCTION__, + damage->region ? cairo_region_num_rectangles (damage->region) : 0)); + + if (damage->status) { + if (!BitBlt (surface->win32.dc, + surface->win32.extents.x + surface->win32.x_ofs, /* Handling multi-monitor... */ + surface->win32.extents.y + surface->win32.y_ofs, /* ... setup on Win32 */ + surface->win32.extents.width, + surface->win32.extents.height, + fallback->win32.dc, + surface->win32.extents.x, surface->win32.extents.y, + SRCCOPY)) + status = _cairo_win32_print_api_error (__FUNCTION__, "BitBlt"); + } else if (damage->region) { + int n = cairo_region_num_rectangles (damage->region), i; + for (i = 0; i < n; i++) { + cairo_rectangle_int_t rect; + + cairo_region_get_rectangle (damage->region, i, &rect); + TRACE ((stderr, "%s: damage (%d,%d)x(%d,%d)\n", __FUNCTION__, + rect.x, rect.y, + rect.width, rect.height)); + if (!BitBlt (surface->win32.dc, + rect.x + surface->win32.x_ofs, /* Handling multi-monitor... */ + rect.y + surface->win32.y_ofs, /* ... setup on Win32 */ + rect.width, rect.height, + fallback->win32.dc, + rect.x, rect.y, + SRCCOPY)) { + status = _cairo_win32_print_api_error (__FUNCTION__, "BitBlt"); + break; + } + } + } + _cairo_damage_destroy (damage); + } else { + cairo_surface_destroy (surface->fallback); + surface->fallback = NULL; + } + + return status; +} + +static cairo_status_t +_cairo_win32_display_surface_mark_dirty (void *abstract_surface, + int x, int y, int width, int height) +{ + _cairo_win32_display_surface_discard_fallback (abstract_surface); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_win32_save_initial_clip (HDC hdc, cairo_win32_display_surface_t *surface) +{ + RECT rect; + int clipBoxType; + int gm; + XFORM saved_xform; + + /* GetClipBox/GetClipRgn and friends interact badly with a world transform + * set. GetClipBox returns values in logical (transformed) coordinates; + * it's unclear what GetClipRgn returns, because the region is empty in the + * case of a SIMPLEREGION clip, but I assume device (untransformed) coordinates. + * Similarly, IntersectClipRect works in logical units, whereas SelectClipRgn + * works in device units. + * + * So, avoid the whole mess and get rid of the world transform + * while we store our initial data and when we restore initial coordinates. + * + * XXX we may need to modify x/y by the ViewportOrg or WindowOrg + * here in GM_COMPATIBLE; unclear. + */ + gm = GetGraphicsMode (hdc); + if (gm == GM_ADVANCED) { + GetWorldTransform (hdc, &saved_xform); + ModifyWorldTransform (hdc, NULL, MWT_IDENTITY); + } + + clipBoxType = GetClipBox (hdc, &rect); + if (clipBoxType == ERROR) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "GetClipBox"); + SetGraphicsMode (hdc, gm); + /* XXX: Can we make a more reasonable guess at the error cause here? */ + return _cairo_error (CAIRO_STATUS_DEVICE_ERROR); + } + + surface->win32.extents.x = rect.left; + surface->win32.extents.y = rect.top; + surface->win32.extents.width = rect.right - rect.left; + surface->win32.extents.height = rect.bottom - rect.top; + + /* On multi-monitor setup, under Windows, the primary monitor always + * have origin (0,0). Any monitors that extends to the left or above + * will have coordinates in the negative range. Take this into + * account, by forcing our Win32 surface to start at extent (0,0) and + * using a device offset. Cairo does not handle extents with negative + * offsets. + */ + surface->win32.x_ofs = 0; + surface->win32.y_ofs = 0; + if ((surface->win32.extents.x < 0) || + (surface->win32.extents.y < 0)) { + /* Negative offsets occurs for (and ONLY for) the desktop DC (virtual + * desktop), when a monitor extend to the left or above the primary + * monitor. + * + * More info @ https://www.microsoft.com/msj/0697/monitor/monitor.aspx + * + * Note that any other DC, including memory DC created with + * CreateCompatibleDC() will have extents in the + * positive range. This will be taken into account later when we perform + * raster operations between the DC (may have to perform offset + * translation). + */ + surface->win32.x_ofs = surface->win32.extents.x; + surface->win32.y_ofs = surface->win32.extents.y; + surface->win32.extents.x = 0; + surface->win32.extents.y = 0; + } + + surface->initial_clip_rgn = NULL; + surface->had_simple_clip = FALSE; + + if (clipBoxType == COMPLEXREGION) { + surface->initial_clip_rgn = CreateRectRgn (0, 0, 0, 0); + if (GetClipRgn (hdc, surface->initial_clip_rgn) <= 0) { + DeleteObject(surface->initial_clip_rgn); + surface->initial_clip_rgn = NULL; + } + } else if (clipBoxType == SIMPLEREGION) { + surface->had_simple_clip = TRUE; + } + + if (gm == GM_ADVANCED) + SetWorldTransform (hdc, &saved_xform); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_win32_display_surface_set_clip (cairo_win32_display_surface_t *surface, + cairo_clip_t *clip) +{ + char stack[512]; + cairo_rectangle_int_t extents; + int num_rects; + RGNDATA *data; + size_t data_size; + RECT *rects; + int i; + HRGN gdi_region; + cairo_status_t status; + cairo_region_t *region; + + /* The semantics we want is that any clip set by cairo combines + * is intersected with the clip on device context that the + * surface was created for. To implement this, we need to + * save the original clip when first setting a clip on surface. + */ + + assert (_cairo_clip_is_region (clip)); + region = _cairo_clip_get_region (clip); + if (region == NULL) + return CAIRO_STATUS_SUCCESS; + + cairo_region_get_extents (region, &extents); + num_rects = cairo_region_num_rectangles (region); + + /* XXX see notes in _cairo_win32_save_initial_clip -- + * this code will interact badly with a HDC which had an initial + * world transform -- we should probably manually transform the + * region rects, because SelectClipRgn takes device units, not + * logical units (unlike IntersectClipRect). + */ + + data_size = sizeof (RGNDATAHEADER) + num_rects * sizeof (RECT); + if (data_size > sizeof (stack)) { + data = _cairo_malloc (data_size); + if (!data) + return _cairo_error(CAIRO_STATUS_NO_MEMORY); + } else + data = (RGNDATA *)stack; + + data->rdh.dwSize = sizeof (RGNDATAHEADER); + data->rdh.iType = RDH_RECTANGLES; + data->rdh.nCount = num_rects; + data->rdh.nRgnSize = num_rects * sizeof (RECT); + data->rdh.rcBound.left = extents.x; + data->rdh.rcBound.top = extents.y; + data->rdh.rcBound.right = extents.x + extents.width; + data->rdh.rcBound.bottom = extents.y + extents.height; + + rects = (RECT *)data->Buffer; + for (i = 0; i < num_rects; i++) { + cairo_rectangle_int_t rect; + + cairo_region_get_rectangle (region, i, &rect); + + rects[i].left = rect.x; + rects[i].top = rect.y; + rects[i].right = rect.x + rect.width; + rects[i].bottom = rect.y + rect.height; + } + + gdi_region = ExtCreateRegion (NULL, data_size, data); + if ((char *)data != stack) + free (data); + + if (!gdi_region) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + /* AND the new region into our DC */ + status = CAIRO_STATUS_SUCCESS; + if (ExtSelectClipRgn (surface->win32.dc, gdi_region, RGN_AND) == ERROR) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "ExtSelectClipRgn"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + DeleteObject (gdi_region); + + return status; +} + +void +_cairo_win32_display_surface_unset_clip (cairo_win32_display_surface_t *surface) +{ + XFORM saved_xform; + int gm = GetGraphicsMode (surface->win32.dc); + if (gm == GM_ADVANCED) { + GetWorldTransform (surface->win32.dc, &saved_xform); + ModifyWorldTransform (surface->win32.dc, NULL, MWT_IDENTITY); + } + + /* initial_clip_rgn will either be a real region or NULL (which means reset to no clip region) */ + SelectClipRgn (surface->win32.dc, surface->initial_clip_rgn); + + if (surface->had_simple_clip) { + /* then if we had a simple clip, intersect */ + IntersectClipRect (surface->win32.dc, + surface->win32.extents.x, + surface->win32.extents.y, + surface->win32.extents.x + surface->win32.extents.width, + surface->win32.extents.y + surface->win32.extents.height); + } + + if (gm == GM_ADVANCED) + SetWorldTransform (surface->win32.dc, &saved_xform); +} + +void +_cairo_win32_display_surface_discard_fallback (cairo_win32_display_surface_t *surface) +{ + if (surface->fallback) { + TRACE ((stderr, "%s (surface=%d)\n", + __FUNCTION__, surface->win32.base.unique_id)); + + cairo_surface_finish (surface->fallback); + cairo_surface_destroy (surface->fallback); + surface->fallback = NULL; + } +} + +static cairo_int_status_t +_cairo_win32_display_surface_paint (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_win32_device_t *device = to_win32_device_from_surface (surface); + + TRACE ((stderr, "%s (surface=%d)\n", + __FUNCTION__, to_win32_surface(surface)->base.unique_id)); + + if (clip == NULL && + (op == CAIRO_OPERATOR_SOURCE || op == CAIRO_OPERATOR_CLEAR)) + _cairo_win32_display_surface_discard_fallback (surface); + + return _cairo_compositor_paint (device->compositor, + surface, op, source, clip); +} + +static cairo_int_status_t +_cairo_win32_display_surface_mask (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + const cairo_clip_t *clip) +{ + cairo_win32_device_t *device = to_win32_device_from_surface (surface); + + TRACE ((stderr, "%s (surface=%d)\n", + __FUNCTION__, to_win32_surface(surface)->base.unique_id)); + + if (clip == NULL && op == CAIRO_OPERATOR_SOURCE) + _cairo_win32_display_surface_discard_fallback (surface); + + return _cairo_compositor_mask (device->compositor, + surface, op, source, mask, clip); +} + +static cairo_int_status_t +_cairo_win32_display_surface_stroke (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_win32_device_t *device = to_win32_device_from_surface (surface); + + TRACE ((stderr, "%s (surface=%d)\n", + __FUNCTION__, to_win32_surface(surface)->base.unique_id)); + + return _cairo_compositor_stroke (device->compositor, surface, + op, source, path, + style, ctm, ctm_inverse, + tolerance, antialias, clip); +} + +static cairo_int_status_t +_cairo_win32_display_surface_fill (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_win32_device_t *device = to_win32_device_from_surface (surface); + + TRACE ((stderr, "%s (surface=%d)\n", + __FUNCTION__, to_win32_surface(surface)->base.unique_id)); + + return _cairo_compositor_fill (device->compositor, surface, + op, source, path, + fill_rule, tolerance, antialias, + clip); +} + +static cairo_int_status_t +_cairo_win32_display_surface_glyphs (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_win32_device_t *device = to_win32_device_from_surface (surface); + + TRACE ((stderr, "%s (surface=%d)\n", + __FUNCTION__, to_win32_surface(surface)->base.unique_id)); + + return _cairo_compositor_glyphs (device->compositor, surface, + op, source, + glyphs, num_glyphs, scaled_font, + clip); +} + +static const cairo_surface_backend_t cairo_win32_display_surface_backend = { + CAIRO_SURFACE_TYPE_WIN32, + _cairo_win32_display_surface_finish, + + _cairo_default_context_create, + + _cairo_win32_display_surface_create_similar, + _cairo_win32_display_surface_create_similar_image, + _cairo_win32_display_surface_map_to_image, + _cairo_win32_display_surface_unmap_image, + + _cairo_surface_default_source, + _cairo_surface_default_acquire_source_image, + _cairo_surface_default_release_source_image, + NULL, /* snapshot */ + + NULL, /* copy_page */ + NULL, /* show_page */ + + _cairo_win32_surface_get_extents, + NULL, /* get_font_options */ + + _cairo_win32_display_surface_flush, + _cairo_win32_display_surface_mark_dirty, + + _cairo_win32_display_surface_paint, + _cairo_win32_display_surface_mask, + _cairo_win32_display_surface_stroke, + _cairo_win32_display_surface_fill, + NULL, /* fill/stroke */ + _cairo_win32_display_surface_glyphs, +}; + +/* Notes: + * + * Win32 alpha-understanding functions + * + * BitBlt - will copy full 32 bits from a 32bpp DIB to result + * (so it's safe to use for ARGB32->ARGB32 SOURCE blits) + * (but not safe going RGB24->ARGB32, if RGB24 is also represented + * as a 32bpp DIB, since the alpha isn't discarded!) + * + * AlphaBlend - if both the source and dest have alpha, even if AC_SRC_ALPHA isn't set, + * it will still copy over the src alpha, because the SCA value (255) will be + * multiplied by all the src components. + */ + +/** + * cairo_win32_surface_create_with_format: + * @hdc: the DC to create a surface for + * @format: format of pixels in the surface to create + * + * Creates a cairo surface that targets the given DC. The DC will be + * queried for its initial clip extents, and this will be used as the + * size of the cairo surface. + * + * Supported formats are: + * %CAIRO_FORMAT_ARGB32 + * %CAIRO_FORMAT_RGB24 + * + * Note: @format only tells cairo how to draw on the surface, not what + * the format of the surface is. Namely, cairo does not (and cannot) + * check that @hdc actually supports alpha-transparency. + * + * Return value: the newly created surface, NULL on failure + * + * Since: 1.14 + **/ +cairo_surface_t * +cairo_win32_surface_create_with_format (HDC hdc, cairo_format_t format) +{ + cairo_win32_display_surface_t *surface; + + cairo_status_t status; + cairo_device_t *device; + + switch (format) { + case CAIRO_FORMAT_INVALID: + case CAIRO_FORMAT_A8: + case CAIRO_FORMAT_A1: + case CAIRO_FORMAT_RGB16_565: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGBA128F: + default: + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT)); + case CAIRO_FORMAT_ARGB32: + case CAIRO_FORMAT_RGB24: + break; + } + + surface = _cairo_calloc (sizeof (*surface)); + if (surface == NULL) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + status = _cairo_win32_save_initial_clip (hdc, surface); + if (status) { + free (surface); + return _cairo_surface_create_in_error (status); + } + + surface->image = NULL; + surface->fallback = NULL; + surface->win32.format = format; + + surface->win32.dc = hdc; + surface->bitmap = NULL; + surface->is_dib = FALSE; + surface->saved_dc_bitmap = NULL; + + surface->win32.flags = _cairo_win32_flags_for_dc (surface->win32.dc, format); + + device = _cairo_win32_device_get (); + + _cairo_surface_init (&surface->win32.base, + &cairo_win32_display_surface_backend, + device, + _cairo_content_from_format (format), + FALSE); /* is_vector */ + + cairo_device_destroy (device); + + return &surface->win32.base; +} + +/** + * cairo_win32_surface_create: + * @hdc: the DC to create a surface for + * + * Creates a cairo surface that targets the given DC. The DC will be + * queried for its initial clip extents, and this will be used as the + * size of the cairo surface. The resulting surface will always be of + * format %CAIRO_FORMAT_RGB24; should you need another surface format, + * you will need to create one through + * cairo_win32_surface_create_with_format() or + * cairo_win32_surface_create_with_dib(). + * + * Return value: the newly created surface, NULL on failure + * + * Since: 1.0 + **/ +cairo_surface_t * +cairo_win32_surface_create (HDC hdc) +{ + return cairo_win32_surface_create_with_format (hdc, CAIRO_FORMAT_RGB24); +} + +/** + * cairo_win32_surface_create_with_dib: + * @format: format of pixels in the surface to create + * @width: width of the surface, in pixels + * @height: height of the surface, in pixels + * + * Creates a device-independent-bitmap surface not associated with + * any particular existing surface or device context. The created + * bitmap will be uninitialized. + * + * Return value: the newly created surface + * + * Since: 1.2 + **/ +cairo_surface_t * +cairo_win32_surface_create_with_dib (cairo_format_t format, + int width, + int height) +{ + if (! CAIRO_FORMAT_VALID (format)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT)); + + return _cairo_win32_display_surface_create_for_dc (NULL, format, width, height); +} + +/** + * cairo_win32_surface_create_with_ddb: + * @hdc: a DC compatible with the surface to create + * @format: format of pixels in the surface to create + * @width: width of the surface, in pixels + * @height: height of the surface, in pixels + * + * Creates a device-dependent-bitmap surface not associated with + * any particular existing surface or device context. The created + * bitmap will be uninitialized. + * + * Return value: the newly created surface + * + * Since: 1.4 + **/ +cairo_surface_t * +cairo_win32_surface_create_with_ddb (HDC hdc, + cairo_format_t format, + int width, + int height) +{ + cairo_win32_display_surface_t *new_surf; + HBITMAP ddb; + HDC screen_dc, ddb_dc; + HBITMAP saved_dc_bitmap; + + switch (format) { +/* XXX handle these eventually */ + case CAIRO_FORMAT_INVALID: + case CAIRO_FORMAT_A8: + case CAIRO_FORMAT_A1: + case CAIRO_FORMAT_RGB16_565: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGBA128F: + default: + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT)); + case CAIRO_FORMAT_ARGB32: + case CAIRO_FORMAT_RGB24: + break; + } + + if (!hdc) { + screen_dc = GetDC (NULL); + hdc = screen_dc; + } else { + screen_dc = NULL; + } + + ddb_dc = CreateCompatibleDC (hdc); + if (ddb_dc == NULL) { + new_surf = (cairo_win32_display_surface_t*) _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + goto FINISH; + } + + ddb = CreateCompatibleBitmap (hdc, width, height); + if (ddb == NULL) { + DeleteDC (ddb_dc); + + /* Note that if an app actually does hit this out of memory + * condition, it's going to have lots of other issues, as + * video memory is probably exhausted. However, it can often + * continue using DIBs instead of DDBs. + */ + new_surf = (cairo_win32_display_surface_t*) _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + goto FINISH; + } + + saved_dc_bitmap = SelectObject (ddb_dc, ddb); + + new_surf = (cairo_win32_display_surface_t*) cairo_win32_surface_create (ddb_dc); + new_surf->bitmap = ddb; + new_surf->saved_dc_bitmap = saved_dc_bitmap; + new_surf->is_dib = FALSE; + +FINISH: + if (screen_dc) + ReleaseDC (NULL, screen_dc); + + return &new_surf->win32.base; +} diff --git a/local/recipes/libs/cairo/source/src/win32/cairo-win32-font.c b/local/recipes/libs/cairo/source/src/win32/cairo-win32-font.c new file mode 100644 index 0000000000..1412c8bbc6 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/win32/cairo-win32-font.c @@ -0,0 +1,2126 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + */ + +#include "cairoint.h" + +#include "cairo-win32-private.h" + +#include "cairo-array-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-pattern-private.h" +#include "cairo-scaled-font-subsets-private.h" + +#include + +#define CMAP_TAG 0x70616d63 + +/** + * SECTION:cairo-win32-fonts + * @Title: Win32 GDI Fonts + * @Short_Description: Font support for Microsoft Windows + * @See_Also: #cairo_font_face_t + * + * The Microsoft Windows font backend is primarily used to render text on + * Microsoft Windows systems. + * + * Note: Win32 GDI fonts do not support color fonts. Use DWrite fonts + * if color font support is required. + **/ + +/** + * CAIRO_HAS_WIN32_FONT: + * + * Defined if the Microsoft Windows font backend is available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.8 + **/ + +const cairo_scaled_font_backend_t _cairo_win32_scaled_font_backend; + +typedef struct { + cairo_scaled_font_t base; + + LOGFONTW logfont; + + BYTE quality; + + /* We do drawing and metrics computation in a "logical space" which + * is similar to font space, except that it is scaled by a factor + * of the (desired font size) * (WIN32_FONT_LOGICAL_SCALE). The multiplication + * by WIN32_FONT_LOGICAL_SCALE allows for sub-pixel precision. + */ + double logical_scale; + + /* The size we should actually request the font at from Windows; differs + * from the logical_scale because it is quantized for orthogonal + * transformations + */ + double logical_size; + + /* Transformations from device <=> logical space + */ + cairo_matrix_t logical_to_device; + cairo_matrix_t device_to_logical; + + /* We special case combinations of 90-degree-rotations, scales and + * flips ... that is transformations that take the axes to the + * axes. If preserve_axes is true, then swap_axes/swap_x/swap_y + * encode the 8 possibilities for orientation (4 rotation angles with + * and without a flip), and scale_x, scale_y the scale components. + */ + cairo_bool_t preserve_axes; + cairo_bool_t swap_axes; + cairo_bool_t swap_x; + cairo_bool_t swap_y; + double x_scale; + double y_scale; + + /* The size of the design unit of the font + */ + int em_square; + + HFONT scaled_hfont; + HFONT unscaled_hfont; + + cairo_bool_t is_bitmap; + cairo_bool_t is_type1; + cairo_bool_t delete_scaled_hfont; + cairo_bool_t has_type1_notdef_index; + unsigned long type1_notdef_index; +} cairo_win32_scaled_font_t; + +static cairo_status_t +_cairo_win32_scaled_font_set_metrics (cairo_win32_scaled_font_t *scaled_font); + +static cairo_status_t +_cairo_win32_scaled_font_init_glyph_metrics (cairo_win32_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph); + +static cairo_status_t +_cairo_win32_scaled_font_init_glyph_surface (cairo_win32_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph); + +static cairo_status_t +_cairo_win32_scaled_font_init_glyph_path (cairo_win32_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph); + +#define NEARLY_ZERO(d) (fabs(d) < (1. / 65536.)) + +static HDC +_get_global_font_dc (void) +{ + static DWORD hdc_tls_index; + HDC hdc; + + if (!hdc_tls_index) { + CAIRO_MUTEX_LOCK (_cairo_win32_font_dc_mutex); + if (!hdc_tls_index) { + hdc_tls_index = TlsAlloc (); + assert (hdc_tls_index != TLS_OUT_OF_INDEXES); + } + CAIRO_MUTEX_UNLOCK (_cairo_win32_font_dc_mutex); + } + + hdc = TlsGetValue (hdc_tls_index); + if (!hdc) { + hdc = CreateCompatibleDC (NULL); + if (!hdc) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "CreateCompatibleDC"); + return NULL; + } + + if (!SetGraphicsMode (hdc, GM_ADVANCED)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "SetGraphicsMode"); + DeleteDC (hdc); + return NULL; + } + + if (!TlsSetValue (hdc_tls_index, hdc)) { + DeleteDC (hdc); + return NULL; + } + } + + return hdc; +} + +static cairo_status_t +_compute_transform (cairo_win32_scaled_font_t *scaled_font, + cairo_matrix_t *sc) +{ + cairo_status_t status; + + if (NEARLY_ZERO (sc->yx) && NEARLY_ZERO (sc->xy) && + !NEARLY_ZERO(sc->xx) && !NEARLY_ZERO(sc->yy)) { + scaled_font->preserve_axes = TRUE; + scaled_font->x_scale = sc->xx; + scaled_font->swap_x = (sc->xx < 0); + scaled_font->y_scale = sc->yy; + scaled_font->swap_y = (sc->yy < 0); + scaled_font->swap_axes = FALSE; + + } else if (NEARLY_ZERO (sc->xx) && NEARLY_ZERO (sc->yy) && + !NEARLY_ZERO(sc->yx) && !NEARLY_ZERO(sc->xy)) { + scaled_font->preserve_axes = TRUE; + scaled_font->x_scale = sc->yx; + scaled_font->swap_x = (sc->yx < 0); + scaled_font->y_scale = sc->xy; + scaled_font->swap_y = (sc->xy < 0); + scaled_font->swap_axes = TRUE; + + } else { + scaled_font->preserve_axes = FALSE; + scaled_font->swap_x = scaled_font->swap_y = scaled_font->swap_axes = FALSE; + } + + if (scaled_font->preserve_axes) { + if (scaled_font->swap_x) + scaled_font->x_scale = - scaled_font->x_scale; + if (scaled_font->swap_y) + scaled_font->y_scale = - scaled_font->y_scale; + + scaled_font->logical_scale = WIN32_FONT_LOGICAL_SCALE * scaled_font->y_scale; + scaled_font->logical_size = WIN32_FONT_LOGICAL_SCALE * + _cairo_lround (scaled_font->y_scale); + } + + /* The font matrix has x and y "scale" components which we extract and + * use as character scale values. + */ + cairo_matrix_init (&scaled_font->logical_to_device, + sc->xx, sc->yx, sc->xy, sc->yy, 0, 0); + + if (!scaled_font->preserve_axes) { + status = _cairo_matrix_compute_basis_scale_factors (&scaled_font->logical_to_device, + &scaled_font->x_scale, &scaled_font->y_scale, + TRUE); /* XXX: Handle vertical text */ + if (status) + return status; + + scaled_font->logical_size = + _cairo_lround (WIN32_FONT_LOGICAL_SCALE * scaled_font->y_scale); + scaled_font->logical_scale = + WIN32_FONT_LOGICAL_SCALE * scaled_font->y_scale; + } + + cairo_matrix_scale (&scaled_font->logical_to_device, + 1.0 / scaled_font->logical_scale, + 1.0 / scaled_font->logical_scale); + + scaled_font->device_to_logical = scaled_font->logical_to_device; + + status = cairo_matrix_invert (&scaled_font->device_to_logical); + if (status) + cairo_matrix_init_identity (&scaled_font->device_to_logical); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_have_cleartype_quality (void) +{ + OSVERSIONINFO version_info; + + version_info.dwOSVersionInfoSize = sizeof (OSVERSIONINFO); + + if (!GetVersionEx (&version_info)) { + _cairo_win32_print_api_error (__FUNCTION__, "GetVersionEx"); + return FALSE; + } + + return (version_info.dwMajorVersion > 5 || + (version_info.dwMajorVersion == 5 && + version_info.dwMinorVersion >= 1)); /* XP or newer */ +} + +BYTE +cairo_win32_get_system_text_quality (void) +{ + BOOL font_smoothing; + UINT smoothing_type; + + if (!SystemParametersInfo (SPI_GETFONTSMOOTHING, 0, &font_smoothing, 0)) { + _cairo_win32_print_api_error (__FUNCTION__, "SystemParametersInfo"); + return DEFAULT_QUALITY; + } + + if (font_smoothing) { + if (_have_cleartype_quality ()) { + if (!SystemParametersInfo (SPI_GETFONTSMOOTHINGTYPE, + 0, &smoothing_type, 0)) { + _cairo_win32_print_api_error (__FUNCTION__, "SystemParametersInfo"); + return DEFAULT_QUALITY; + } + + if (smoothing_type == FE_FONTSMOOTHINGCLEARTYPE) + return CLEARTYPE_QUALITY; + } + + return ANTIALIASED_QUALITY; + } else { + return DEFAULT_QUALITY; + } +} + +/* If face_hfont is non-%NULL then font_matrix must be a simple scale by some + * factor S, ctm must be the identity, logfont->lfHeight must be -S, + * logfont->lfWidth, logfont->lfEscapement, logfont->lfOrientation must + * all be 0, and face_hfont is the result of calling CreateFontIndirectW on + * logfont. + */ +static cairo_status_t +_win32_scaled_font_create (LOGFONTW *logfont, + HFONT face_hfont, + cairo_font_face_t *font_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options, + cairo_scaled_font_t **font_out) +{ + HDC hdc; + cairo_win32_scaled_font_t *f; + cairo_matrix_t scale; + cairo_status_t status; + + hdc = _get_global_font_dc (); + if (hdc == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + f = _cairo_calloc (sizeof(cairo_win32_scaled_font_t)); + if (f == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + f->logfont = *logfont; + + /* We don't have any control over the hinting style or subpixel + * order in the Win32 font API, so we ignore those parts of + * cairo_font_options_t. We use the 'antialias' field to set + * the 'quality'. + * + * XXX: The other option we could pay attention to, but don't + * here is the hint_metrics options. + */ + if (options->antialias == CAIRO_ANTIALIAS_DEFAULT) + f->quality = cairo_win32_get_system_text_quality (); + else { + switch (options->antialias) { + case CAIRO_ANTIALIAS_NONE: + f->quality = NONANTIALIASED_QUALITY; + break; + case CAIRO_ANTIALIAS_GRAY: + case CAIRO_ANTIALIAS_FAST: + case CAIRO_ANTIALIAS_GOOD: + f->quality = ANTIALIASED_QUALITY; + break; + case CAIRO_ANTIALIAS_SUBPIXEL: + case CAIRO_ANTIALIAS_BEST: + if (_have_cleartype_quality ()) + f->quality = CLEARTYPE_QUALITY; + else + f->quality = ANTIALIASED_QUALITY; + break; + case CAIRO_ANTIALIAS_DEFAULT: + ASSERT_NOT_REACHED; + } + } + + f->em_square = 0; + f->scaled_hfont = NULL; + f->unscaled_hfont = NULL; + f->has_type1_notdef_index = FALSE; + + if (f->quality == logfont->lfQuality || + (logfont->lfQuality == DEFAULT_QUALITY && + options->antialias == CAIRO_ANTIALIAS_DEFAULT)) { + /* If face_hfont is non-NULL, then we can use it to avoid creating our + * own --- because the constraints on face_hfont mentioned above + * guarantee it was created in exactly the same way that + * _win32_scaled_font_get_scaled_hfont would create it. + */ + f->scaled_hfont = face_hfont; + } + /* don't delete the hfont if we're using the one passed in to us */ + f->delete_scaled_hfont = !f->scaled_hfont; + + cairo_matrix_multiply (&scale, font_matrix, ctm); + status = _compute_transform (f, &scale); + if (status) + goto FAIL; + + status = _cairo_scaled_font_init (&f->base, font_face, + font_matrix, ctm, options, + &_cairo_win32_scaled_font_backend); + if (status) + goto FAIL; + + status = _cairo_win32_scaled_font_set_metrics (f); + if (status) { + _cairo_scaled_font_fini (&f->base); + goto FAIL; + } + + *font_out = &f->base; + return CAIRO_STATUS_SUCCESS; + + FAIL: + free (f); + return status; +} + +static cairo_status_t +_win32_scaled_font_set_world_transform (cairo_win32_scaled_font_t *scaled_font, + HDC hdc) +{ + XFORM xform; + + _cairo_matrix_to_win32_xform (&scaled_font->logical_to_device, &xform); + + if (!SetWorldTransform (hdc, &xform)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "SetWorldTransform"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_win32_scaled_font_set_identity_transform (HDC hdc) +{ + if (!ModifyWorldTransform (hdc, NULL, MWT_IDENTITY)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "ModifyWorldTransform"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_win32_scaled_font_get_scaled_hfont (cairo_win32_scaled_font_t *scaled_font, + HFONT *hfont_out) +{ + if (!scaled_font->scaled_hfont) { + LOGFONTW logfont = scaled_font->logfont; + logfont.lfHeight = -scaled_font->logical_size; + logfont.lfWidth = 0; + logfont.lfEscapement = 0; + logfont.lfOrientation = 0; + logfont.lfQuality = scaled_font->quality; + + scaled_font->scaled_hfont = CreateFontIndirectW (&logfont); + if (!scaled_font->scaled_hfont) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "CreateFontIndirect"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + } + + *hfont_out = scaled_font->scaled_hfont; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_win32_scaled_font_get_unscaled_hfont (cairo_win32_scaled_font_t *scaled_font, + HDC hdc, + HFONT *hfont_out) +{ + if (scaled_font->unscaled_hfont == NULL) { + OUTLINETEXTMETRIC *otm; + unsigned int otm_size; + HFONT scaled_hfont; + LOGFONTW logfont; + cairo_status_t status; + + status = _win32_scaled_font_get_scaled_hfont (scaled_font, + &scaled_hfont); + if (status) + return status; + + if (! SelectObject (hdc, scaled_hfont)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "SelectObject"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + otm_size = GetOutlineTextMetrics (hdc, 0, NULL); + if (! otm_size) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "GetOutlineTextMetrics"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + otm = _cairo_malloc (otm_size); + if (otm == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (! GetOutlineTextMetrics (hdc, otm_size, otm)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "GetOutlineTextMetrics"); + free (otm); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + scaled_font->em_square = otm->otmEMSquare; + free (otm); + otm = NULL; + + logfont = scaled_font->logfont; + logfont.lfHeight = -scaled_font->em_square; + logfont.lfWidth = 0; + logfont.lfEscapement = 0; + logfont.lfOrientation = 0; + logfont.lfQuality = scaled_font->quality; + + scaled_font->unscaled_hfont = CreateFontIndirectW (&logfont); + if (! scaled_font->unscaled_hfont) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "CreateFontIndirect"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + } + + *hfont_out = scaled_font->unscaled_hfont; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_win32_scaled_font_select_unscaled_font (cairo_scaled_font_t *scaled_font, + HDC hdc) +{ + cairo_status_t status; + HFONT hfont; + HFONT old_hfont = NULL; + + status = _win32_scaled_font_get_unscaled_hfont ((cairo_win32_scaled_font_t *)scaled_font, hdc, &hfont); + if (status) + return status; + + old_hfont = SelectObject (hdc, hfont); + if (!old_hfont) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "CreateSolidBrush"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + status = _win32_scaled_font_set_identity_transform (hdc); + if (status) { + SelectObject (hdc, old_hfont); + return status; + } + + SetMapMode (hdc, MM_TEXT); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_bool_t +_cairo_win32_scaled_font_is_type1 (cairo_scaled_font_t *scaled_font) +{ + cairo_win32_scaled_font_t *win32_scaled_font; + + win32_scaled_font = (cairo_win32_scaled_font_t *) scaled_font; + + return win32_scaled_font->is_type1; +} + +cairo_bool_t +_cairo_win32_scaled_font_is_bitmap (cairo_scaled_font_t *scaled_font) +{ + cairo_win32_scaled_font_t *win32_scaled_font; + + win32_scaled_font = (cairo_win32_scaled_font_t *) scaled_font; + + return win32_scaled_font->is_bitmap; +} + +static void +_cairo_win32_scaled_font_done_unscaled_font (cairo_scaled_font_t *scaled_font) +{ +} + +/* implement the font backend interface */ + +static cairo_status_t +_cairo_win32_font_face_create_for_toy (cairo_toy_font_face_t *toy_face, + cairo_font_face_t **font_face) +{ + LOGFONTW logfont; + uint16_t *face_name; + int face_name_len; + cairo_status_t status; + + status = _cairo_utf8_to_utf16 (toy_face->family, -1, + &face_name, &face_name_len); + if (status) + return status; + + if (face_name_len > LF_FACESIZE - 1) + face_name_len = LF_FACESIZE - 1; + + memcpy (logfont.lfFaceName, face_name, sizeof (uint16_t) * face_name_len); + logfont.lfFaceName[face_name_len] = 0; + free (face_name); + + logfont.lfHeight = 0; /* filled in later */ + logfont.lfWidth = 0; /* filled in later */ + logfont.lfEscapement = 0; /* filled in later */ + logfont.lfOrientation = 0; /* filled in later */ + + switch (toy_face->weight) { + case CAIRO_FONT_WEIGHT_NORMAL: + default: + logfont.lfWeight = FW_NORMAL; + break; + case CAIRO_FONT_WEIGHT_BOLD: + logfont.lfWeight = FW_BOLD; + break; + } + + switch (toy_face->slant) { + case CAIRO_FONT_SLANT_NORMAL: + default: + logfont.lfItalic = FALSE; + break; + case CAIRO_FONT_SLANT_ITALIC: + case CAIRO_FONT_SLANT_OBLIQUE: + logfont.lfItalic = TRUE; + break; + } + + logfont.lfUnderline = FALSE; + logfont.lfStrikeOut = FALSE; + /* The docs for LOGFONT discourage using this, since the + * interpretation is locale-specific, but it's not clear what + * would be a better alternative. + */ + logfont.lfCharSet = DEFAULT_CHARSET; + logfont.lfOutPrecision = OUT_DEFAULT_PRECIS; + logfont.lfClipPrecision = CLIP_DEFAULT_PRECIS; + logfont.lfQuality = DEFAULT_QUALITY; /* filled in later */ + logfont.lfPitchAndFamily = DEFAULT_PITCH | FF_DONTCARE; + + *font_face = cairo_win32_font_face_create_for_logfontw (&logfont); + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_win32_scaled_font_fini (void *abstract_font) +{ + cairo_win32_scaled_font_t *scaled_font = abstract_font; + + if (scaled_font == NULL) + return; + + if (scaled_font->scaled_hfont && scaled_font->delete_scaled_hfont) + DeleteObject (scaled_font->scaled_hfont); + + if (scaled_font->unscaled_hfont) + DeleteObject (scaled_font->unscaled_hfont); +} + +static unsigned long +_cairo_win32_scaled_font_ucs4_to_index (void *abstract_font, + uint32_t ucs4) +{ + cairo_win32_scaled_font_t *scaled_font = abstract_font; + wchar_t unicode[2]; + WORD glyph_index; + HDC hdc = NULL; + cairo_status_t status; + + hdc = _get_global_font_dc (); + assert (hdc != NULL); + + status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc); + if (status) + return 0; + + unicode[0] = ucs4; + unicode[1] = 0; + if (GetGlyphIndicesW (hdc, unicode, 1, &glyph_index, 0) == GDI_ERROR) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "GetGlyphIndices"); + glyph_index = 0; + } + + cairo_win32_scaled_font_done_font (&scaled_font->base); + + return glyph_index; +} + +static cairo_status_t +_cairo_win32_scaled_font_set_metrics (cairo_win32_scaled_font_t *scaled_font) +{ + cairo_status_t status; + cairo_font_extents_t extents; + + TEXTMETRIC metrics = {0}; + HDC hdc; + + hdc = _get_global_font_dc (); + assert (hdc != NULL); + + if (scaled_font->preserve_axes || scaled_font->base.options.hint_metrics == CAIRO_HINT_METRICS_OFF) { + /* For 90-degree rotations (including 0), we get the metrics + * from the GDI in logical space, then convert back to font space + */ + status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc); + if (status) + return status; + + if (!GetTextMetrics (hdc, &metrics)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "GetTextMetrics"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + cairo_win32_scaled_font_done_font (&scaled_font->base); + if (status) + return status; + + extents.ascent = metrics.tmAscent / scaled_font->logical_scale; + extents.descent = metrics.tmDescent / scaled_font->logical_scale; + + extents.height = (metrics.tmHeight + metrics.tmExternalLeading) / scaled_font->logical_scale; + extents.max_x_advance = metrics.tmMaxCharWidth / scaled_font->logical_scale; + extents.max_y_advance = 0; + + } else { + /* For all other transformations, we use the design metrics + * of the font. The GDI results from GetTextMetrics() on a + * transformed font are inexplicably large and we want to + * avoid them. + */ + status = _cairo_win32_scaled_font_select_unscaled_font (&scaled_font->base, hdc); + if (status) + return status; + GetTextMetrics (hdc, &metrics); + _cairo_win32_scaled_font_done_unscaled_font (&scaled_font->base); + + extents.ascent = (double)metrics.tmAscent / scaled_font->em_square; + extents.descent = (double)metrics.tmDescent / scaled_font->em_square; + extents.height = (double)(metrics.tmHeight + metrics.tmExternalLeading) / scaled_font->em_square; + extents.max_x_advance = (double)(metrics.tmMaxCharWidth) / scaled_font->em_square; + extents.max_y_advance = 0; + + } + + scaled_font->is_bitmap = !(metrics.tmPitchAndFamily & TMPF_VECTOR); + + /* Need to determine if this is a Type 1 font for the special + * handling in _text_to_glyphs. Unlike TrueType or OpenType, + * Type1 fonts do not have a "cmap" table (or any other table). + * However GetFontData() will retrieve a Type1 font when + * requesting that GetFontData() retrieve data from the start of + * the file. This is to distinguish Type1 from stroke fonts such + * as "Script" and "Modern". The TMPF_TRUETYPE test is redundant + * but improves performance for the most common fonts. + */ + scaled_font->is_type1 = FALSE; + if (!(metrics.tmPitchAndFamily & TMPF_TRUETYPE) && + (metrics.tmPitchAndFamily & TMPF_VECTOR)) + { + if ((GetFontData (hdc, CMAP_TAG, 0, NULL, 0) == GDI_ERROR) && + (GetFontData (hdc, 0, 0, NULL, 0) != GDI_ERROR)) + { + scaled_font->is_type1 = TRUE; + } + } + + return _cairo_scaled_font_set_metrics (&scaled_font->base, &extents); +} + +static cairo_status_t +_cairo_win32_scaled_font_init_glyph_metrics (cairo_win32_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph) +{ + static const MAT2 matrix = { { 0, 1 }, { 0, 0 }, { 0, 0 }, { 0, 1 } }; + GLYPHMETRICS metrics; + cairo_status_t status; + cairo_text_extents_t extents; + HDC hdc; + + hdc = _get_global_font_dc (); + assert (hdc != NULL); + + if (scaled_font->is_bitmap) { + /* GetGlyphOutline will not work. Assume that the glyph does not extend outside the font box. */ + cairo_font_extents_t font_extents; + INT width = 0; + UINT charIndex = _cairo_scaled_glyph_index (scaled_glyph); + + cairo_scaled_font_extents (&scaled_font->base, &font_extents); + + status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc); + if (status) + return status; + + if (!GetCharWidth32(hdc, charIndex, charIndex, &width)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "GetCharWidth32"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + width = 0; + } + cairo_win32_scaled_font_done_font (&scaled_font->base); + if (status) + return status; + + extents.x_bearing = 0; + extents.y_bearing = scaled_font->base.ctm.yy * (-font_extents.ascent / scaled_font->y_scale); + extents.width = width / (WIN32_FONT_LOGICAL_SCALE * scaled_font->x_scale); + extents.height = scaled_font->base.ctm.yy * (font_extents.ascent + font_extents.descent) / scaled_font->y_scale; + extents.x_advance = extents.width; + extents.y_advance = 0; + } else if (scaled_font->preserve_axes && scaled_font->base.options.hint_metrics != CAIRO_HINT_METRICS_OFF) { + /* If we aren't rotating / skewing the axes, then we get the metrics + * from the GDI in device space and convert to font space. + */ + status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc); + if (status) + return status; + + if (GetGlyphOutlineW (hdc, _cairo_scaled_glyph_index (scaled_glyph), + GGO_METRICS | GGO_GLYPH_INDEX, + &metrics, 0, NULL, &matrix) == GDI_ERROR) { + memset (&metrics, 0, sizeof (GLYPHMETRICS)); + } else { + if (metrics.gmBlackBoxX > 0 && scaled_font->base.options.antialias != CAIRO_ANTIALIAS_NONE) { + /* The bounding box reported by Windows supposedly contains the glyph's "black" area; + * however, antialiasing (especially with ClearType) means that the actual image that + * needs to be rendered may "bleed" into the adjacent pixels, mainly on the right side. + * To avoid clipping the glyphs when drawn by _cairo_surface_fallback_show_glyphs, + * for example, or other code that uses glyph extents to determine the area to update, + * we add a pixel of "slop" to left side of the nominal "black" area returned by GDI, + * and two pixels to the right (as tests show some glyphs bleed into this column). + */ + metrics.gmptGlyphOrigin.x -= 1; + metrics.gmBlackBoxX += 3; + } + } + cairo_win32_scaled_font_done_font (&scaled_font->base); + + if (scaled_font->swap_axes) { + extents.x_bearing = - metrics.gmptGlyphOrigin.y / scaled_font->y_scale; + extents.y_bearing = metrics.gmptGlyphOrigin.x / scaled_font->x_scale; + extents.width = metrics.gmBlackBoxY / scaled_font->y_scale; + extents.height = metrics.gmBlackBoxX / scaled_font->x_scale; + extents.x_advance = metrics.gmCellIncY / scaled_font->x_scale; + extents.y_advance = metrics.gmCellIncX / scaled_font->y_scale; + } else { + extents.x_bearing = metrics.gmptGlyphOrigin.x / scaled_font->x_scale; + extents.y_bearing = - metrics.gmptGlyphOrigin.y / scaled_font->y_scale; + extents.width = metrics.gmBlackBoxX / scaled_font->x_scale; + extents.height = metrics.gmBlackBoxY / scaled_font->y_scale; + extents.x_advance = metrics.gmCellIncX / scaled_font->x_scale; + extents.y_advance = metrics.gmCellIncY / scaled_font->y_scale; + } + + if (scaled_font->swap_x) { + extents.x_bearing = (- extents.x_bearing - extents.width); + extents.x_advance = - extents.x_advance; + } + + if (scaled_font->swap_y) { + extents.y_bearing = (- extents.y_bearing - extents.height); + extents.y_advance = - extents.y_advance; + } + } else { + /* For all other transformations, we use the design metrics + * of the font. + */ + status = _cairo_win32_scaled_font_select_unscaled_font (&scaled_font->base, hdc); + if (status) + return status; + + if (GetGlyphOutlineW (hdc, _cairo_scaled_glyph_index (scaled_glyph), + GGO_METRICS | GGO_GLYPH_INDEX, + &metrics, 0, NULL, &matrix) == GDI_ERROR) { + memset (&metrics, 0, sizeof (GLYPHMETRICS)); + } + _cairo_win32_scaled_font_done_unscaled_font (&scaled_font->base); + + extents.x_bearing = (double)metrics.gmptGlyphOrigin.x / scaled_font->em_square; + extents.y_bearing = - (double)metrics.gmptGlyphOrigin.y / scaled_font->em_square; + extents.width = (double)metrics.gmBlackBoxX / scaled_font->em_square; + extents.height = (double)metrics.gmBlackBoxY / scaled_font->em_square; + extents.x_advance = (double)metrics.gmCellIncX / scaled_font->em_square; + extents.y_advance = (double)metrics.gmCellIncY / scaled_font->em_square; + } + + _cairo_scaled_glyph_set_metrics (scaled_glyph, + &scaled_font->base, + &extents); + + return CAIRO_STATUS_SUCCESS; +} + +/* Not currently used code, but may be useful in the future if we add + * back the capability to the scaled font backend interface to get the + * actual device space bbox rather than computing it from the + * font-space metrics. + */ +#if 0 +static cairo_status_t +_cairo_win32_scaled_font_glyph_bbox (void *abstract_font, + const cairo_glyph_t *glyphs, + int num_glyphs, + cairo_box_t *bbox) +{ + static const MAT2 matrix = { { 0, 1 }, { 0, 0 }, { 0, 0 }, { 0, 1 } }; + cairo_win32_scaled_font_t *scaled_font = abstract_font; + int x1 = 0, x2 = 0, y1 = 0, y2 = 0; + + if (num_glyphs > 0) { + HDC hdc; + GLYPHMETRICS metrics; + cairo_status_t status; + int i; + + hdc = _get_global_font_dc (); + assert (hdc != NULL); + + status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc); + if (status) + return status; + + for (i = 0; i < num_glyphs; i++) { + int x = _cairo_lround (glyphs[i].x); + int y = _cairo_lround (glyphs[i].y); + + GetGlyphOutlineW (hdc, glyphs[i].index, GGO_METRICS | GGO_GLYPH_INDEX, + &metrics, 0, NULL, &matrix); + + if (i == 0 || x1 > x + metrics.gmptGlyphOrigin.x) + x1 = x + metrics.gmptGlyphOrigin.x; + if (i == 0 || y1 > y - metrics.gmptGlyphOrigin.y) + y1 = y - metrics.gmptGlyphOrigin.y; + if (i == 0 || x2 < x + metrics.gmptGlyphOrigin.x + (int)metrics.gmBlackBoxX) + x2 = x + metrics.gmptGlyphOrigin.x + (int)metrics.gmBlackBoxX; + if (i == 0 || y2 < y - metrics.gmptGlyphOrigin.y + (int)metrics.gmBlackBoxY) + y2 = y - metrics.gmptGlyphOrigin.y + (int)metrics.gmBlackBoxY; + } + + cairo_win32_scaled_font_done_font (&scaled_font->base); + } + + bbox->p1.x = _cairo_fixed_from_int (x1); + bbox->p1.y = _cairo_fixed_from_int (y1); + bbox->p2.x = _cairo_fixed_from_int (x2); + bbox->p2.y = _cairo_fixed_from_int (y2); + + return CAIRO_STATUS_SUCCESS; +} +#endif + +typedef struct { + cairo_win32_scaled_font_t *scaled_font; + HDC hdc; + + cairo_array_t glyphs; + cairo_array_t dx; + + int start_x; + int last_x; + int last_y; +} cairo_glyph_state_t; + +static void +_start_glyphs (cairo_glyph_state_t *state, + cairo_win32_scaled_font_t *scaled_font, + HDC hdc) +{ + state->hdc = hdc; + state->scaled_font = scaled_font; + + _cairo_array_init (&state->glyphs, sizeof (WCHAR)); + _cairo_array_init (&state->dx, sizeof (int)); +} + +static cairo_status_t +_flush_glyphs (cairo_glyph_state_t *state) +{ + cairo_status_t status; + int dx = 0; + WCHAR * elements; + int * dx_elements; + + status = _cairo_array_append (&state->dx, &dx); + if (status) + return status; + + elements = _cairo_array_index (&state->glyphs, 0); + dx_elements = _cairo_array_index (&state->dx, 0); + if (!ExtTextOutW (state->hdc, + state->start_x, state->last_y, + ETO_GLYPH_INDEX, + NULL, + elements, + state->glyphs.num_elements, + dx_elements)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "CreateSolidBrush"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + _cairo_array_truncate (&state->glyphs, 0); + _cairo_array_truncate (&state->dx, 0); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_add_glyph (cairo_glyph_state_t *state, + unsigned long index, + double device_x, + double device_y) +{ + cairo_status_t status; + double user_x = device_x; + double user_y = device_y; + WCHAR glyph_index = index; + int logical_x, logical_y; + + cairo_matrix_transform_point (&state->scaled_font->device_to_logical, &user_x, &user_y); + + logical_x = _cairo_lround (user_x); + logical_y = _cairo_lround (user_y); + + if (state->glyphs.num_elements > 0) { + int dx; + + if (logical_y != state->last_y) { + status = _flush_glyphs (state); + if (status) + return status; + state->start_x = logical_x; + } else { + dx = logical_x - state->last_x; + status = _cairo_array_append (&state->dx, &dx); + if (status) + return status; + } + } else { + state->start_x = logical_x; + } + + state->last_x = logical_x; + state->last_y = logical_y; + + status = _cairo_array_append (&state->glyphs, &glyph_index); + if (status) + return status; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_finish_glyphs (cairo_glyph_state_t *state) +{ + cairo_status_t status; + + status = _flush_glyphs (state); + + _cairo_array_fini (&state->glyphs); + _cairo_array_fini (&state->dx); + + return status; +} + +static cairo_status_t +_draw_glyphs_on_surface (cairo_win32_surface_t *surface, + cairo_win32_scaled_font_t *scaled_font, + COLORREF color, + int x_offset, + int y_offset, + const cairo_glyph_t *glyphs, + int num_glyphs) +{ + cairo_glyph_state_t state; + cairo_status_t status, status2; + int i; + + if (!SaveDC (surface->dc)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "SaveDC"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + status = cairo_win32_scaled_font_select_font (&scaled_font->base, surface->dc); + if (status) + goto FAIL1; + + SetTextColor (surface->dc, color); + SetTextAlign (surface->dc, TA_BASELINE | TA_LEFT); + SetBkMode (surface->dc, TRANSPARENT); + + _start_glyphs (&state, scaled_font, surface->dc); + + for (i = 0; i < num_glyphs; i++) { + status = _add_glyph (&state, glyphs[i].index, + glyphs[i].x - x_offset, glyphs[i].y - y_offset); + if (status) + goto FAIL2; + } + + FAIL2: + status2 = _finish_glyphs (&state); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + + cairo_win32_scaled_font_done_font (&scaled_font->base); + FAIL1: + RestoreDC (surface->dc, -1); + + return status; +} + +static cairo_int_status_t +_cairo_win32_scaled_font_glyph_init (void *abstract_font, + cairo_scaled_glyph_t *scaled_glyph, + cairo_scaled_glyph_info_t info, + const cairo_color_t *foreground_color) +{ + cairo_win32_scaled_font_t *scaled_font = abstract_font; + cairo_status_t status; + + if ((info & CAIRO_SCALED_GLYPH_INFO_METRICS) != 0) { + status = _cairo_win32_scaled_font_init_glyph_metrics (scaled_font, scaled_glyph); + if (status) + return status; + } + + if (info & CAIRO_SCALED_GLYPH_INFO_COLOR_SURFACE) { + scaled_glyph->color_glyph = FALSE; + scaled_glyph->color_glyph_set = TRUE; + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + if (info & CAIRO_SCALED_GLYPH_INFO_SURFACE) { + status = _cairo_win32_scaled_font_init_glyph_surface (scaled_font, scaled_glyph); + if (status) + return status; + } + + if ((info & CAIRO_SCALED_GLYPH_INFO_PATH) != 0) { + status = _cairo_win32_scaled_font_init_glyph_path (scaled_font, scaled_glyph); + if (status) + return status; + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_win32_scaled_font_load_truetype_table (void *abstract_font, + unsigned long tag, + long offset, + unsigned char *buffer, + unsigned long *length) +{ + cairo_win32_scaled_font_t *scaled_font = abstract_font; + HDC hdc; + cairo_status_t status; + DWORD ret; + + hdc = _get_global_font_dc (); + assert (hdc != NULL); + + tag = (tag&0x000000ffu)<<24 | (tag&0x0000ff00)<<8 | (tag&0x00ff0000)>>8 | (tag&0xff000000)>>24; + status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc); + if (status) + return status; + + ret = GetFontData (hdc, tag, offset, buffer, *length); + if (ret == GDI_ERROR || (buffer && ret != *length)) + status = CAIRO_INT_STATUS_UNSUPPORTED; + else + *length = ret; + + cairo_win32_scaled_font_done_font (&scaled_font->base); + + return status; +} + +static cairo_int_status_t +_cairo_win32_scaled_font_index_to_ucs4 (void *abstract_font, + unsigned long index, + uint32_t *ucs4) +{ + cairo_win32_scaled_font_t *scaled_font = abstract_font; + GLYPHSET *glyph_set; + uint16_t *utf16 = NULL; + WORD *glyph_indices = NULL; + HDC hdc = NULL; + int res; + unsigned int i, j, num_glyphs; + cairo_status_t status; + + hdc = _get_global_font_dc (); + assert (hdc != NULL); + + status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc); + if (status) + return status; + + res = GetFontUnicodeRanges(hdc, NULL); + if (res == 0) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "GetFontUnicodeRanges"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + goto exit1; + } + + glyph_set = _cairo_malloc (res); + if (glyph_set == NULL) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto exit1; + } + + res = GetFontUnicodeRanges(hdc, glyph_set); + if (res == 0) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "GetFontUnicodeRanges"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + goto exit1; + } + + *ucs4 = (uint32_t) -1; + for (i = 0; i < glyph_set->cRanges; i++) { + num_glyphs = glyph_set->ranges[i].cGlyphs; + + utf16 = _cairo_malloc_ab (num_glyphs + 1, sizeof (uint16_t)); + if (utf16 == NULL) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto exit1; + } + + glyph_indices = _cairo_malloc_ab (num_glyphs + 1, sizeof (WORD)); + if (glyph_indices == NULL) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto exit2; + } + + for (j = 0; j < num_glyphs; j++) + utf16[j] = glyph_set->ranges[i].wcLow + j; + utf16[j] = 0; + + if (GetGlyphIndicesW (hdc, utf16, num_glyphs, glyph_indices, 0) == GDI_ERROR) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "GetGlyphIndices"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + goto exit2; + } + + for (j = 0; j < num_glyphs; j++) { + if (glyph_indices[j] == index) { + *ucs4 = utf16[j]; + goto exit2; + } + } + + free (glyph_indices); + glyph_indices = NULL; + free (utf16); + utf16 = NULL; + } + +exit2: + free (glyph_indices); + free (utf16); + free (glyph_set); +exit1: + cairo_win32_scaled_font_done_font (&scaled_font->base); + + return status; +} + +static cairo_int_status_t +_cairo_win32_scaled_font_is_synthetic (void *abstract_font, + cairo_bool_t *is_synthetic) +{ + cairo_win32_scaled_font_t *scaled_font = abstract_font; + cairo_status_t status; + int weight; + cairo_bool_t bold; + cairo_bool_t italic; + + *is_synthetic = FALSE; + status = _cairo_truetype_get_style (&scaled_font->base, + &weight, + &bold, + &italic); + /* If this doesn't work assume it is not synthetic to avoid + * unnecessary subsetting fallbacks. */ + if (status != CAIRO_STATUS_SUCCESS) + return CAIRO_STATUS_SUCCESS; + + if (scaled_font->logfont.lfWeight != weight || + scaled_font->logfont.lfItalic != italic) + *is_synthetic = TRUE; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_win32_scaled_font_index_to_glyph_name (void *abstract_font, + char **glyph_names, + int num_glyph_names, + unsigned long glyph_index, + unsigned long *glyph_array_index) +{ + cairo_win32_scaled_font_t *scaled_font = abstract_font; + int i; + + /* Windows puts .notdef at index 0 then numbers the remaining + * glyphs starting from 1 in the order they appear in the font. */ + + /* Find the position of .notdef in the list of glyph names. We + * only need to do this once per scaled font. */ + if (! scaled_font->has_type1_notdef_index) { + for (i = 0; i < num_glyph_names; i++) { + if (strcmp (glyph_names[i], ".notdef") == 0) { + scaled_font->type1_notdef_index = i; + scaled_font->has_type1_notdef_index = TRUE; + break; + } + } + if (! scaled_font->has_type1_notdef_index) + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + /* Once we know the position of .notdef the position of any glyph + * in the font can easily be obtained. */ + if (glyph_index == 0) + *glyph_array_index = scaled_font->type1_notdef_index; + else if (glyph_index <= scaled_font->type1_notdef_index) + *glyph_array_index = glyph_index - 1; + else if (glyph_index < (unsigned long)num_glyph_names) + *glyph_array_index = glyph_index; + else + return CAIRO_INT_STATUS_UNSUPPORTED; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_win32_scaled_font_load_type1_data (void *abstract_font, + long offset, + unsigned char *buffer, + unsigned long *length) +{ + cairo_win32_scaled_font_t *scaled_font = abstract_font; + + if (! scaled_font->is_type1) + return CAIRO_INT_STATUS_UNSUPPORTED; + + /* Using the tag 0 retrieves the entire font file. This works with + * Type 1 fonts as well as TTF/OTF fonts. */ + return _cairo_win32_scaled_font_load_truetype_table (scaled_font, + 0, + offset, + buffer, + length); +} + +cairo_surface_t * +_cairo_compute_glyph_mask (cairo_surface_t *surface, + int quality) +{ + cairo_image_surface_t *glyph; + cairo_image_surface_t *mask; + int i, j; + + glyph = (cairo_image_surface_t *)cairo_surface_map_to_image (surface, NULL); + if (unlikely (glyph->base.status)) + return &glyph->base; + + if (quality == CLEARTYPE_QUALITY) { + /* Duplicate the green channel of a 4-channel mask into the + * alpha channel, then invert the whole mask. + */ + mask = (cairo_image_surface_t *) + cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + glyph->width, glyph->height); + if (likely (mask->base.status == CAIRO_STATUS_SUCCESS)) { + for (i = 0; i < glyph->height; i++) { + uint32_t *p = (uint32_t *) (glyph->data + i * glyph->stride); + uint32_t *q = (uint32_t *) (mask->data + i * mask->stride); + + for (j = 0; j < glyph->width; j++) { + *q++ = 0xffffffff ^ (*p | ((*p & 0x0000ff00) << 16)); + p++; + } + } + } + } else { + /* Compute an alpha-mask from a using the green channel of a + * (presumed monochrome) RGB24 image. + */ + mask = (cairo_image_surface_t *) + cairo_image_surface_create (CAIRO_FORMAT_A8, + glyph->width, glyph->height); + if (likely (mask->base.status == CAIRO_STATUS_SUCCESS)) { + for (i = 0; i < glyph->height; i++) { + uint32_t *p = (uint32_t *) (glyph->data + i * glyph->stride); + uint8_t *q = (uint8_t *) (mask->data + i * mask->stride); + + for (j = 0; j < glyph->width; j++) + *q++ = 255 - ((*p++ & 0x0000ff00) >> 8); + } + } + } + + cairo_surface_unmap_image (surface, &glyph->base); + return &mask->base; +} + +static cairo_status_t +_cairo_win32_scaled_font_init_glyph_surface (cairo_win32_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph) +{ + cairo_status_t status; + cairo_glyph_t glyph; + cairo_surface_t *surface; + cairo_surface_t *image; + int width, height; + int x1, y1, x2, y2; + + x1 = _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.x); + y1 = _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.y); + x2 = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.x); + y2 = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.y); + width = x2 - x1; + height = y2 - y1; + + surface = cairo_win32_surface_create_with_dib (CAIRO_FORMAT_RGB24, + width, height); + status = _cairo_surface_paint (surface, CAIRO_OPERATOR_SOURCE, + &_cairo_pattern_white.base, NULL); + if (status) + goto FAIL; + + glyph.index = _cairo_scaled_glyph_index (scaled_glyph); + glyph.x = -x1; + glyph.y = -y1; + status = _draw_glyphs_on_surface (to_win32_surface (surface), + scaled_font, RGB(0,0,0), + 0, 0, &glyph, 1); + if (status) + goto FAIL; + + image = _cairo_compute_glyph_mask (surface, scaled_font->quality); + status = image->status; + if (status) + goto FAIL; + + cairo_surface_set_device_offset (image, -x1, -y1); + _cairo_scaled_glyph_set_surface (scaled_glyph, + &scaled_font->base, + (cairo_image_surface_t *) image); + + FAIL: + cairo_surface_destroy (surface); + + return status; +} + +static void +_cairo_win32_transform_FIXED_to_fixed (cairo_matrix_t *matrix, + FIXED Fx, FIXED Fy, + cairo_fixed_t *fx, cairo_fixed_t *fy) +{ + double x = Fx.value + Fx.fract / 65536.0; + double y = Fy.value + Fy.fract / 65536.0; + cairo_matrix_transform_point (matrix, &x, &y); + *fx = _cairo_fixed_from_double (x); + *fy = _cairo_fixed_from_double (y); +} + +static cairo_status_t +_cairo_win32_scaled_font_init_glyph_path (cairo_win32_scaled_font_t *scaled_font, + cairo_scaled_glyph_t *scaled_glyph) +{ + static const MAT2 matrix = { { 0, 1 }, { 0, 0 }, { 0, 0 }, { 0, -1 } }; + cairo_status_t status; + GLYPHMETRICS metrics; + HDC hdc; + DWORD bytesGlyph; + unsigned char *buffer, *ptr; + cairo_path_fixed_t *path; + cairo_matrix_t transform; + cairo_fixed_t x, y; + + if (scaled_font->is_bitmap) + return CAIRO_INT_STATUS_UNSUPPORTED; + + hdc = _get_global_font_dc (); + assert (hdc != NULL); + + path = _cairo_path_fixed_create (); + if (!path) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + if (scaled_font->base.options.hint_style == CAIRO_HINT_STYLE_NONE) { + status = _cairo_win32_scaled_font_select_unscaled_font (&scaled_font->base, hdc); + transform = scaled_font->base.scale; + cairo_matrix_scale (&transform, 1.0/scaled_font->em_square, 1.0/scaled_font->em_square); + } else { + status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc); + cairo_matrix_init_identity(&transform); + } + if (status) + goto CLEANUP_PATH; + + bytesGlyph = GetGlyphOutlineW (hdc, _cairo_scaled_glyph_index (scaled_glyph), + GGO_NATIVE | GGO_GLYPH_INDEX, + &metrics, 0, NULL, &matrix); + + if (bytesGlyph == GDI_ERROR) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "GetGlyphOutline"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + goto CLEANUP_FONT; + } + + ptr = buffer = _cairo_malloc (bytesGlyph); + if (!buffer && bytesGlyph != 0) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto CLEANUP_FONT; + } + + if (GetGlyphOutlineW (hdc, _cairo_scaled_glyph_index (scaled_glyph), + GGO_NATIVE | GGO_GLYPH_INDEX, + &metrics, bytesGlyph, buffer, &matrix) == GDI_ERROR) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "GetGlyphOutline"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + goto CLEANUP_BUFFER; + } + + while (ptr < buffer + bytesGlyph) { + TTPOLYGONHEADER *header = (TTPOLYGONHEADER *)ptr; + unsigned char *endPoly = ptr + header->cb; + + ptr += sizeof (TTPOLYGONHEADER); + + _cairo_win32_transform_FIXED_to_fixed (&transform, + header->pfxStart.x, + header->pfxStart.y, + &x, &y); + status = _cairo_path_fixed_move_to (path, x, y); + if (status) + goto CLEANUP_BUFFER; + + while (ptr < endPoly) { + TTPOLYCURVE *curve = (TTPOLYCURVE *)ptr; + POINTFX *points = curve->apfx; + int i; + switch (curve->wType) { + case TT_PRIM_LINE: + for (i = 0; i < curve->cpfx; i++) { + _cairo_win32_transform_FIXED_to_fixed (&transform, + points[i].x, + points[i].y, + &x, &y); + status = _cairo_path_fixed_line_to (path, x, y); + if (status) + goto CLEANUP_BUFFER; + } + break; + case TT_PRIM_QSPLINE: + for (i = 0; i < curve->cpfx - 1; i++) { + cairo_fixed_t p1x, p1y, p2x, p2y, cx, cy, c1x, c1y, c2x, c2y; + if (! _cairo_path_fixed_get_current_point (path, &p1x, &p1y)) + goto CLEANUP_BUFFER; + _cairo_win32_transform_FIXED_to_fixed (&transform, + points[i].x, + points[i].y, + &cx, &cy); + + if (i + 1 == curve->cpfx - 1) { + _cairo_win32_transform_FIXED_to_fixed (&transform, + points[i + 1].x, + points[i + 1].y, + &p2x, &p2y); + } else { + /* records with more than one curve use interpolation for + control points, per http://support.microsoft.com/kb/q87115/ */ + _cairo_win32_transform_FIXED_to_fixed (&transform, + points[i + 1].x, + points[i + 1].y, + &x, &y); + p2x = (cx + x) / 2; + p2y = (cy + y) / 2; + } + + c1x = 2 * cx / 3 + p1x / 3; + c1y = 2 * cy / 3 + p1y / 3; + c2x = 2 * cx / 3 + p2x / 3; + c2y = 2 * cy / 3 + p2y / 3; + + status = _cairo_path_fixed_curve_to (path, c1x, c1y, c2x, c2y, p2x, p2y); + if (status) + goto CLEANUP_BUFFER; + } + break; + case TT_PRIM_CSPLINE: + for (i = 0; i < curve->cpfx - 2; i += 2) { + cairo_fixed_t x1, y1, x2, y2; + _cairo_win32_transform_FIXED_to_fixed (&transform, + points[i].x, + points[i].y, + &x, &y); + _cairo_win32_transform_FIXED_to_fixed (&transform, + points[i + 1].x, + points[i + 1].y, + &x1, &y1); + _cairo_win32_transform_FIXED_to_fixed (&transform, + points[i + 2].x, + points[i + 2].y, + &x2, &y2); + status = _cairo_path_fixed_curve_to (path, x, y, x1, y1, x2, y2); + if (status) + goto CLEANUP_BUFFER; + } + break; + } + ptr += sizeof(TTPOLYCURVE) + sizeof (POINTFX) * (curve->cpfx - 1); + } + status = _cairo_path_fixed_close_path (path); + if (status) + goto CLEANUP_BUFFER; + } + + _cairo_scaled_glyph_set_path (scaled_glyph, + &scaled_font->base, + path); + + CLEANUP_BUFFER: + free (buffer); + + CLEANUP_FONT: + if (scaled_font->base.options.hint_style == CAIRO_HINT_STYLE_NONE) + _cairo_win32_scaled_font_done_unscaled_font (&scaled_font->base); + else + cairo_win32_scaled_font_done_font (&scaled_font->base); + + CLEANUP_PATH: + if (status != CAIRO_STATUS_SUCCESS) + _cairo_path_fixed_destroy (path); + + return status; +} + +const cairo_scaled_font_backend_t _cairo_win32_scaled_font_backend = { + CAIRO_FONT_TYPE_WIN32, + _cairo_win32_scaled_font_fini, + _cairo_win32_scaled_font_glyph_init, + NULL, /* _cairo_win32_scaled_font_text_to_glyphs */ + _cairo_win32_scaled_font_ucs4_to_index, + _cairo_win32_scaled_font_load_truetype_table, + _cairo_win32_scaled_font_index_to_ucs4, + _cairo_win32_scaled_font_is_synthetic, + _cairo_win32_scaled_font_index_to_glyph_name, + _cairo_win32_scaled_font_load_type1_data +}; + +/* #cairo_win32_font_face_t */ + +typedef struct _cairo_win32_font_face cairo_win32_font_face_t; + +/* If hfont is non-%NULL then logfont->lfHeight must be -S for some S, + * logfont->lfWidth, logfont->lfEscapement, logfont->lfOrientation must + * all be 0, and hfont is the result of calling CreateFontIndirectW on + * logfont. + */ +struct _cairo_win32_font_face { + cairo_font_face_t base; + LOGFONTW logfont; + HFONT hfont; +}; + +/* We maintain a hash table from LOGFONT,HFONT => #cairo_font_face_t. + * The primary purpose of this mapping is to provide unique + * #cairo_font_face_t values so that our cache and mapping from + * #cairo_font_face_t => #cairo_scaled_font_t works. Once the + * corresponding #cairo_font_face_t objects fall out of downstream + * caches, we don't need them in this hash table anymore. + * + * Modifications to this hash table are protected by + * _cairo_win32_font_face_mutex. + */ + +static cairo_hash_table_t *cairo_win32_font_face_hash_table = NULL; + +static int +_cairo_win32_font_face_keys_equal (const void *key_a, + const void *key_b); + +static void +_cairo_win32_font_face_hash_table_destroy (void) +{ + cairo_hash_table_t *hash_table; + + /* We manually acquire the lock rather than calling + * _cairo_win32_font_face_hash_table_lock simply to avoid creating + * the table only to destroy it again. */ + CAIRO_MUTEX_LOCK (_cairo_win32_font_face_mutex); + hash_table = cairo_win32_font_face_hash_table; + cairo_win32_font_face_hash_table = NULL; + CAIRO_MUTEX_UNLOCK (_cairo_win32_font_face_mutex); + + if (hash_table != NULL) + _cairo_hash_table_destroy (hash_table); +} + +static cairo_hash_table_t * +_cairo_win32_font_face_hash_table_lock (void) +{ + CAIRO_MUTEX_LOCK (_cairo_win32_font_face_mutex); + + if (unlikely (cairo_win32_font_face_hash_table == NULL)) + { + cairo_win32_font_face_hash_table = + _cairo_hash_table_create (_cairo_win32_font_face_keys_equal); + + if (unlikely (cairo_win32_font_face_hash_table == NULL)) { + CAIRO_MUTEX_UNLOCK (_cairo_win32_font_face_mutex); + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return NULL; + } + } + + return cairo_win32_font_face_hash_table; +} + +static void +_cairo_win32_font_face_hash_table_unlock (void) +{ + CAIRO_MUTEX_UNLOCK (_cairo_win32_font_face_mutex); +} + +static cairo_bool_t +_cairo_win32_font_face_destroy (void *abstract_face) +{ + cairo_win32_font_face_t *font_face = abstract_face; + cairo_hash_table_t *hash_table; + + hash_table = _cairo_win32_font_face_hash_table_lock (); + /* All created objects must have been mapped in the hash table. */ + assert (hash_table != NULL); + + if (! _cairo_reference_count_dec_and_test (&font_face->base.ref_count)) { + /* somebody recreated the font whilst we waited for the lock */ + _cairo_win32_font_face_hash_table_unlock (); + return FALSE; + } + + /* Font faces in SUCCESS status are guaranteed to be in the + * hashtable. Font faces in an error status are removed from the + * hashtable if they are found during a lookup, thus they should + * only be removed if they are in the hashtable. */ + if (likely (font_face->base.status == CAIRO_STATUS_SUCCESS) || + _cairo_hash_table_lookup (hash_table, &font_face->base.hash_entry) == font_face) + _cairo_hash_table_remove (hash_table, &font_face->base.hash_entry); + + _cairo_win32_font_face_hash_table_unlock (); + return TRUE; +} + +static void +_cairo_win32_font_face_init_key (cairo_win32_font_face_t *key, + LOGFONTW *logfont, + HFONT font) +{ + uintptr_t hash = _CAIRO_HASH_INIT_VALUE; + + key->logfont = *logfont; + key->hfont = font; + + hash = _cairo_hash_bytes (0, logfont->lfFaceName, 2*wcslen(logfont->lfFaceName)); + hash = _cairo_hash_bytes (hash, &logfont->lfWeight, sizeof(logfont->lfWeight)); + hash = _cairo_hash_bytes (hash, &logfont->lfItalic, sizeof(logfont->lfItalic)); + + key->base.hash_entry.hash = hash; +} + +static int +_cairo_win32_font_face_keys_equal (const void *key_a, + const void *key_b) +{ + const cairo_win32_font_face_t *face_a = key_a; + const cairo_win32_font_face_t *face_b = key_b; + + if (face_a->logfont.lfWeight == face_b->logfont.lfWeight && + face_a->logfont.lfItalic == face_b->logfont.lfItalic && + face_a->logfont.lfUnderline == face_b->logfont.lfUnderline && + face_a->logfont.lfStrikeOut == face_b->logfont.lfStrikeOut && + face_a->logfont.lfCharSet == face_b->logfont.lfCharSet && + face_a->logfont.lfOutPrecision == face_b->logfont.lfOutPrecision && + face_a->logfont.lfClipPrecision == face_b->logfont.lfClipPrecision && + face_a->logfont.lfPitchAndFamily == face_b->logfont.lfPitchAndFamily && + (wcscmp (face_a->logfont.lfFaceName, face_b->logfont.lfFaceName) == 0)) + return TRUE; + else + return FALSE; +} + +/* implement the platform-specific interface */ + +static cairo_bool_t +_is_scale (const cairo_matrix_t *matrix, double scale) +{ + return matrix->xx == scale && matrix->yy == scale && + matrix->xy == 0. && matrix->yx == 0. && + matrix->x0 == 0. && matrix->y0 == 0.; +} + +static cairo_status_t +_cairo_win32_font_face_scaled_font_create (void *abstract_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options, + cairo_scaled_font_t **font) +{ + HFONT hfont = NULL; + + cairo_win32_font_face_t *font_face = abstract_face; + + if (font_face->hfont) { + /* Check whether it's OK to go ahead and use the font-face's HFONT. */ + if (_is_scale (ctm, 1.) && + _is_scale (font_matrix, -font_face->logfont.lfHeight * WIN32_FONT_LOGICAL_SCALE)) { + hfont = font_face->hfont; + } + } + + return _win32_scaled_font_create (&font_face->logfont, + hfont, + &font_face->base, + font_matrix, ctm, options, + font); +} + +const cairo_font_face_backend_t _cairo_win32_font_face_backend = { + CAIRO_FONT_TYPE_WIN32, + _cairo_win32_font_face_create_for_toy, + _cairo_win32_font_face_destroy, + _cairo_win32_font_face_scaled_font_create +}; + +/** + * cairo_win32_font_face_create_for_logfontw_hfont: + * @logfont: A #LOGFONTW structure specifying the font to use. + * If @font is %NULL then the lfHeight, lfWidth, lfOrientation and lfEscapement + * fields of this structure are ignored. Otherwise lfWidth, lfOrientation and + * lfEscapement must be zero. + * @font: An #HFONT that can be used when the font matrix is a scale by + * -lfHeight and the CTM is identity. + * + * Creates a new font for the Win32 font backend based on a + * #LOGFONT. This font can then be used with + * cairo_set_font_face() or cairo_scaled_font_create(). + * The #cairo_scaled_font_t + * returned from cairo_scaled_font_create() is also for the Win32 backend + * and can be used with functions such as cairo_win32_scaled_font_select_font(). + * + * Return value: a newly created #cairo_font_face_t. Free with + * cairo_font_face_destroy() when you are done using it. + * + * Since: 1.6 + **/ +cairo_font_face_t * +cairo_win32_font_face_create_for_logfontw_hfont (LOGFONTW *logfont, HFONT font) +{ + cairo_win32_font_face_t *font_face, key; + cairo_hash_table_t *hash_table; + cairo_status_t status; + + hash_table = _cairo_win32_font_face_hash_table_lock (); + if (unlikely (hash_table == NULL)) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + return (cairo_font_face_t *)&_cairo_font_face_nil; + } + + _cairo_win32_font_face_init_key (&key, logfont, font); + + /* Return existing unscaled font if it exists in the hash table. */ + font_face = _cairo_hash_table_lookup (hash_table, + &key.base.hash_entry); + if (font_face != NULL) { + if (font_face->base.status == CAIRO_STATUS_SUCCESS) { + cairo_font_face_reference (&font_face->base); + _cairo_win32_font_face_hash_table_unlock (); + return &font_face->base; + } + + /* remove the bad font from the hash table */ + _cairo_hash_table_remove (hash_table, &font_face->base.hash_entry); + } + + /* Otherwise create it and insert into hash table. */ + font_face = _cairo_calloc (sizeof (cairo_win32_font_face_t)); + if (!font_face) { + _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); + goto FAIL; + } + + _cairo_win32_font_face_init_key (font_face, logfont, font); + _cairo_font_face_init (&font_face->base, &_cairo_win32_font_face_backend); + + assert (font_face->base.hash_entry.hash == key.base.hash_entry.hash); + status = _cairo_hash_table_insert (hash_table, + &font_face->base.hash_entry); + if (unlikely (status)) + goto FAIL; + + _cairo_win32_font_face_hash_table_unlock (); + return &font_face->base; + +FAIL: + _cairo_win32_font_face_hash_table_unlock (); + return (cairo_font_face_t *)&_cairo_font_face_nil; +} + +/** + * cairo_win32_font_face_create_for_logfontw: + * @logfont: A #LOGFONTW structure specifying the font to use. + * The lfHeight, lfWidth, lfOrientation and lfEscapement + * fields of this structure are ignored. + * + * Creates a new font for the Win32 font backend based on a + * #LOGFONT. This font can then be used with + * cairo_set_font_face() or cairo_scaled_font_create(). + * The #cairo_scaled_font_t + * returned from cairo_scaled_font_create() is also for the Win32 backend + * and can be used with functions such as cairo_win32_scaled_font_select_font(). + * + * Return value: a newly created #cairo_font_face_t. Free with + * cairo_font_face_destroy() when you are done using it. + * + * Since: 1.0 + **/ +cairo_font_face_t * +cairo_win32_font_face_create_for_logfontw (LOGFONTW *logfont) +{ + return cairo_win32_font_face_create_for_logfontw_hfont (logfont, NULL); +} + +/** + * cairo_win32_font_face_create_for_hfont: + * @font: An #HFONT structure specifying the font to use. + * + * Creates a new font for the Win32 font backend based on a + * #HFONT. This font can then be used with + * cairo_set_font_face() or cairo_scaled_font_create(). + * The #cairo_scaled_font_t + * returned from cairo_scaled_font_create() is also for the Win32 backend + * and can be used with functions such as cairo_win32_scaled_font_select_font(). + * + * Return value: a newly created #cairo_font_face_t. Free with + * cairo_font_face_destroy() when you are done using it. + * + * Since: 1.2 + **/ +cairo_font_face_t * +cairo_win32_font_face_create_for_hfont (HFONT font) +{ + LOGFONTW logfont; + GetObjectW (font, sizeof(logfont), &logfont); + + if (logfont.lfEscapement != 0 || logfont.lfOrientation != 0 || + logfont.lfWidth != 0) { + /* We can't use this font because that optimization requires that + * lfEscapement, lfOrientation and lfWidth be zero. */ + font = NULL; + } + + return cairo_win32_font_face_create_for_logfontw_hfont (&logfont, font); +} + +static cairo_bool_t +_cairo_scaled_font_is_win32 (cairo_scaled_font_t *scaled_font) +{ + return scaled_font->backend == &_cairo_win32_scaled_font_backend; +} + +/** + * cairo_win32_scaled_font_select_font: + * @scaled_font: A #cairo_scaled_font_t from the Win32 font backend. Such an + * object can be created with cairo_win32_font_face_create_for_logfontw(). + * @hdc: a device context + * + * Selects the font into the given device context and changes the + * map mode and world transformation of the device context to match + * that of the font. This function is intended for use when using + * layout APIs such as Uniscribe to do text layout with the + * cairo font. After finishing using the device context, you must call + * cairo_win32_scaled_font_done_font() to release any resources allocated + * by this function. + * + * See cairo_win32_scaled_font_get_metrics_factor() for converting logical + * coordinates from the device context to font space. + * + * Normally, calls to SaveDC() and RestoreDC() would be made around + * the use of this function to preserve the original graphics state. + * + * Return value: %CAIRO_STATUS_SUCCESS if the operation succeeded. + * otherwise an error such as %CAIRO_STATUS_NO_MEMORY and + * the device context is unchanged. + * + * Since: 1.0 + **/ +cairo_status_t +cairo_win32_scaled_font_select_font (cairo_scaled_font_t *scaled_font, + HDC hdc) +{ + cairo_status_t status; + HFONT hfont; + HFONT old_hfont = NULL; + int old_mode; + + if (! _cairo_scaled_font_is_win32 (scaled_font)) { + return _cairo_error (CAIRO_STATUS_FONT_TYPE_MISMATCH); + } + + if (scaled_font->status) + return scaled_font->status; + + status = _win32_scaled_font_get_scaled_hfont ((cairo_win32_scaled_font_t *)scaled_font, &hfont); + if (status) + return status; + + old_hfont = SelectObject (hdc, hfont); + if (!old_hfont) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "SelectObject"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + old_mode = SetGraphicsMode (hdc, GM_ADVANCED); + if (!old_mode) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "SetGraphicsMode"); + SelectObject (hdc, old_hfont); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + status = _win32_scaled_font_set_world_transform ((cairo_win32_scaled_font_t *)scaled_font, hdc); + if (status) { + SetGraphicsMode (hdc, old_mode); + SelectObject (hdc, old_hfont); + return status; + } + + SetMapMode (hdc, MM_TEXT); + + return CAIRO_STATUS_SUCCESS; +} + +/** + * cairo_win32_scaled_font_done_font: + * @scaled_font: A scaled font from the Win32 font backend. + * + * Releases any resources allocated by cairo_win32_scaled_font_select_font() + * + * Since: 1.0 + **/ +void +cairo_win32_scaled_font_done_font (cairo_scaled_font_t *scaled_font) +{ + if (! _cairo_scaled_font_is_win32 (scaled_font)) { + _cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH); + } +} + +/** + * cairo_win32_scaled_font_get_metrics_factor: + * @scaled_font: a scaled font from the Win32 font backend + * + * Gets a scale factor between logical coordinates in the coordinate + * space used by cairo_win32_scaled_font_select_font() (that is, the + * coordinate system used by the Windows functions to return metrics) and + * font space coordinates. + * + * Return value: factor to multiply logical units by to get font space + * coordinates. + * + * Since: 1.0 + **/ +double +cairo_win32_scaled_font_get_metrics_factor (cairo_scaled_font_t *scaled_font) +{ + if (! _cairo_scaled_font_is_win32 (scaled_font)) { + _cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH); + return 1.; + } + return 1. / ((cairo_win32_scaled_font_t *)scaled_font)->logical_scale; +} + +/** + * cairo_win32_scaled_font_get_logical_to_device: + * @scaled_font: a scaled font from the Win32 font backend + * @logical_to_device: matrix to return + * + * Gets the transformation mapping the logical space used by @scaled_font + * to device space. + * + * Since: 1.4 + **/ +void +cairo_win32_scaled_font_get_logical_to_device (cairo_scaled_font_t *scaled_font, + cairo_matrix_t *logical_to_device) +{ + cairo_win32_scaled_font_t *win_font = (cairo_win32_scaled_font_t *)scaled_font; + if (! _cairo_scaled_font_is_win32 (scaled_font)) { + _cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH); + cairo_matrix_init_identity (logical_to_device); + return; + } + *logical_to_device = win_font->logical_to_device; +} + +/** + * cairo_win32_scaled_font_get_device_to_logical: + * @scaled_font: a scaled font from the Win32 font backend + * @device_to_logical: matrix to return + * + * Gets the transformation mapping device space to the logical space + * used by @scaled_font. + * + * Since: 1.4 + **/ +void +cairo_win32_scaled_font_get_device_to_logical (cairo_scaled_font_t *scaled_font, + cairo_matrix_t *device_to_logical) +{ + cairo_win32_scaled_font_t *win_font = (cairo_win32_scaled_font_t *)scaled_font; + if (! _cairo_scaled_font_is_win32 (scaled_font)) { + _cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH); + cairo_matrix_init_identity (device_to_logical); + return; + } + *device_to_logical = win_font->device_to_logical; +} + +void +_cairo_win32_font_reset_static_data (void) +{ + _cairo_win32_font_face_hash_table_destroy (); +} diff --git a/local/recipes/libs/cairo/source/src/win32/cairo-win32-gdi-compositor.c b/local/recipes/libs/cairo/source/src/win32/cairo-win32-gdi-compositor.c new file mode 100644 index 0000000000..347cd7ed5d --- /dev/null +++ b/local/recipes/libs/cairo/source/src/win32/cairo-win32-gdi-compositor.c @@ -0,0 +1,652 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2012 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Carl D. Worth + * Behdad Esfahbod + * Chris Wilson + * Karl Tomlinson , Mozilla Corporation + */ + +/* The original X drawing API was very restrictive in what it could handle, + * pixel-aligned fill/blits are all that map into Cairo's drawing model. + */ + +#include "cairoint.h" + +#include "cairo-win32-private.h" + +#include "cairo-boxes-private.h" +#include "cairo-clip-inline.h" +#include "cairo-compositor-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-pattern-private.h" +#include "cairo-region-private.h" +#include "cairo-surface-inline.h" +#include "cairo-surface-offset-private.h" + +#define PELS_72DPI ((LONG)(72. / 0.0254)) + +/* the low-level interface */ + +struct fill_box { + HDC dc; + HBRUSH brush; +}; + +static cairo_bool_t fill_box (cairo_box_t *box, void *closure) +{ + struct fill_box *fb = closure; + RECT rect; + + rect.left = _cairo_fixed_integer_part (box->p1.x); + rect.top = _cairo_fixed_integer_part (box->p1.y); + rect.right = _cairo_fixed_integer_part (box->p2.x); + rect.bottom = _cairo_fixed_integer_part (box->p2.y); + + TRACE ((stderr, "%s\n", __FUNCTION__)); + return FillRect (fb->dc, &rect, fb->brush); +} + +struct check_box { + cairo_rectangle_int_t limit; + int tx, ty; +}; + +struct copy_box { + cairo_rectangle_int_t limit; + int tx, ty; + HDC dst, src; + BLENDFUNCTION bf; +}; + +static cairo_bool_t copy_box (cairo_box_t *box, void *closure) +{ + const struct copy_box *cb = closure; + int x = _cairo_fixed_integer_part (box->p1.x); + int y = _cairo_fixed_integer_part (box->p1.y); + int width = _cairo_fixed_integer_part (box->p2.x - box->p1.x); + int height = _cairo_fixed_integer_part (box->p2.y - box->p1.y); + + TRACE ((stderr, "%s\n", __FUNCTION__)); + return BitBlt (cb->dst, x, y, width, height, + cb->src, x + cb->tx, y + cb->ty, + SRCCOPY); +} + +static cairo_bool_t alpha_box (cairo_box_t *box, void *closure) +{ + const struct copy_box *cb = closure; + int x = _cairo_fixed_integer_part (box->p1.x); + int y = _cairo_fixed_integer_part (box->p1.y); + int width = _cairo_fixed_integer_part (box->p2.x - box->p1.x); + int height = _cairo_fixed_integer_part (box->p2.y - box->p1.y); + + TRACE ((stderr, "%s\n", __FUNCTION__)); + return AlphaBlend (cb->dst, x, y, width, height, + cb->src, x + cb->tx, y + cb->ty, width, height, + cb->bf); +} + +struct upload_box { + cairo_rectangle_int_t limit; + int tx, ty; + HDC dst; + BITMAPINFO bi; + void *data; +}; + +static cairo_bool_t upload_box (cairo_box_t *box, void *closure) +{ + const struct upload_box *cb = closure; + int x = _cairo_fixed_integer_part (box->p1.x); + int y = _cairo_fixed_integer_part (box->p1.y); + int width = _cairo_fixed_integer_part (box->p2.x - box->p1.x); + int height = _cairo_fixed_integer_part (box->p2.y - box->p1.y); + int src_height = -cb->bi.bmiHeader.biHeight; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + return StretchDIBits (cb->dst, x, y + height - 1, width, -height, + x + cb->tx, src_height - (y + cb->ty - 1), + width, -height, + cb->data, &cb->bi, + DIB_RGB_COLORS, SRCCOPY); +} + +/* the mid-level: converts boxes into drawing operations */ + +static COLORREF color_to_rgb(const cairo_color_t *c) +{ + return RGB (c->red_short >> 8, c->green_short >> 8, c->blue_short >> 8); +} + +static cairo_int_status_t +fill_boxes (cairo_win32_display_surface_t *dst, + const cairo_pattern_t *src, + cairo_boxes_t *boxes) +{ + const cairo_color_t *color = &((cairo_solid_pattern_t *) src)->color; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + struct fill_box fb; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if ((dst->win32.flags & CAIRO_WIN32_SURFACE_CAN_RGB_BRUSH) == 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + fb.dc = dst->win32.dc; + fb.brush = CreateSolidBrush (color_to_rgb(color)); + if (!fb.brush) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "CreateSolidBrush"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + if (! _cairo_boxes_for_each_box (boxes, fill_box, &fb)) + status = CAIRO_INT_STATUS_UNSUPPORTED; + + DeleteObject (fb.brush); + + return status; +} + +static cairo_bool_t source_contains_box (cairo_box_t *box, void *closure) +{ + struct check_box *data = closure; + + /* The box is pixel-aligned so the truncation is safe. */ + return + _cairo_fixed_integer_part (box->p1.x) + data->tx >= data->limit.x && + _cairo_fixed_integer_part (box->p1.y) + data->ty >= data->limit.y && + _cairo_fixed_integer_part (box->p2.x) + data->tx <= data->limit.x + data->limit.width && + _cairo_fixed_integer_part (box->p2.y) + data->ty <= data->limit.y + data->limit.height; +} + +static cairo_status_t +copy_boxes (cairo_win32_display_surface_t *dst, + const cairo_pattern_t *source, + cairo_boxes_t *boxes) +{ + const cairo_surface_pattern_t *pattern; + struct copy_box cb; + cairo_surface_t *surface; + cairo_status_t status; + cairo_win32_surface_t *src; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + pattern = (const cairo_surface_pattern_t *) source; + surface = _cairo_surface_get_source (pattern->surface, &cb.limit); + if (surface->type == CAIRO_SURFACE_TYPE_IMAGE) { + surface = to_image_surface(surface)->parent; + if (surface == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + } + if (surface->type != CAIRO_SURFACE_TYPE_WIN32) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (! _cairo_matrix_is_integer_translation (&source->matrix, + &cb.tx, &cb.ty)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + src = to_win32_surface(surface); + + if (src->format != dst->win32.format && + !(src->format == CAIRO_FORMAT_ARGB32 && dst->win32.format == CAIRO_FORMAT_RGB24)) + { + /* forbid copy different surfaces unless it is from argb32 to + * rgb (dropping alpha) */ + return CAIRO_INT_STATUS_UNSUPPORTED; + } + cb.dst = dst->win32.dc; + cb.src = src->dc; + + /* First check that the data is entirely within the image */ + if (! _cairo_boxes_for_each_box (boxes, source_contains_box, &cb)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = __cairo_surface_flush (surface, 0); + if (status) + return status; + + cb.tx += cb.limit.x; + cb.ty += cb.limit.y; + status = CAIRO_STATUS_SUCCESS; + if (! _cairo_boxes_for_each_box (boxes, copy_box, &cb)) + status = CAIRO_INT_STATUS_UNSUPPORTED; + + _cairo_win32_display_surface_discard_fallback (dst); + return status; +} + +static cairo_status_t +upload_boxes (cairo_win32_display_surface_t *dst, + const cairo_pattern_t *source, + cairo_boxes_t *boxes) +{ + const cairo_surface_pattern_t *pattern; + struct upload_box cb; + cairo_surface_t *surface; + cairo_image_surface_t *image; + void *image_extra; + cairo_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if ((dst->win32.flags & CAIRO_WIN32_SURFACE_CAN_STRETCHDIB) == 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (! _cairo_matrix_is_integer_translation (&source->matrix, + &cb.tx, &cb.ty)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + pattern = (const cairo_surface_pattern_t *) source; + surface = _cairo_surface_get_source (pattern->surface, &cb.limit); + + /* First check that the data is entirely within the image */ + if (! _cairo_boxes_for_each_box (boxes, source_contains_box, &cb)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (surface->type != CAIRO_SURFACE_TYPE_IMAGE) { + status = _cairo_surface_acquire_source_image (surface, + &image, &image_extra); + if (status) + return status; + } else + image = to_image_surface(surface); + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (!(image->format == CAIRO_FORMAT_ARGB32 || + image->format == CAIRO_FORMAT_RGB24)) + goto err; + if (image->stride != 4*image->width) + goto err; + + cb.dst = dst->win32.dc; + cb.data = image->data; + + cb.bi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER); + cb.bi.bmiHeader.biWidth = image->width; + cb.bi.bmiHeader.biHeight = -image->height; + cb.bi.bmiHeader.biSizeImage = 0; + cb.bi.bmiHeader.biXPelsPerMeter = PELS_72DPI; + cb.bi.bmiHeader.biYPelsPerMeter = PELS_72DPI; + cb.bi.bmiHeader.biPlanes = 1; + cb.bi.bmiHeader.biBitCount = 32; + cb.bi.bmiHeader.biCompression = BI_RGB; + cb.bi.bmiHeader.biClrUsed = 0; + cb.bi.bmiHeader.biClrImportant = 0; + + cb.tx += cb.limit.x; + cb.ty += cb.limit.y; + status = CAIRO_STATUS_SUCCESS; + if (! _cairo_boxes_for_each_box (boxes, upload_box, &cb)) + status = CAIRO_INT_STATUS_UNSUPPORTED; + + _cairo_win32_display_surface_discard_fallback (dst); +err: + if (&image->base != surface) + _cairo_surface_release_source_image (surface, image, image_extra); + + return status; +} + +static cairo_status_t +alpha_blend_boxes (cairo_win32_display_surface_t *dst, + const cairo_pattern_t *source, + cairo_boxes_t *boxes, + uint8_t alpha) +{ + const cairo_surface_pattern_t *pattern; + struct copy_box cb; + cairo_surface_t *surface; + cairo_win32_display_surface_t *src; + cairo_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + if (source->type != CAIRO_PATTERN_TYPE_SURFACE) + return CAIRO_INT_STATUS_UNSUPPORTED; + + pattern = (const cairo_surface_pattern_t *) source; + surface = _cairo_surface_get_source (pattern->surface, &cb.limit); + if (surface->type == CAIRO_SURFACE_TYPE_IMAGE) { + surface = to_image_surface(surface)->parent; + if (surface == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + } + if (surface->type != CAIRO_SURFACE_TYPE_WIN32) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (! _cairo_matrix_is_integer_translation (&source->matrix, + &cb.tx, &cb.ty)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + src = to_win32_display_surface (surface); + cb.dst = dst->win32.dc; + cb.src = src->win32.dc; + + /* First check that the data is entirely within the image */ + if (! _cairo_boxes_for_each_box (boxes, source_contains_box, &cb)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = __cairo_surface_flush (&src->win32.base, 0); + if (status) + return status; + + cb.bf.BlendOp = AC_SRC_OVER; + cb.bf.BlendFlags = 0; + cb.bf.SourceConstantAlpha = alpha; + cb.bf.AlphaFormat = (src->win32.format == CAIRO_FORMAT_ARGB32) ? AC_SRC_ALPHA : 0; + + cb.tx += cb.limit.x; + cb.ty += cb.limit.y; + status = CAIRO_STATUS_SUCCESS; + if (! _cairo_boxes_for_each_box (boxes, alpha_box, &cb)) + status = CAIRO_INT_STATUS_UNSUPPORTED; + + _cairo_win32_display_surface_discard_fallback (dst); + return status; +} + +static cairo_bool_t +can_alpha_blend (cairo_win32_display_surface_t *dst) +{ + return (dst->win32.flags & CAIRO_WIN32_SURFACE_CAN_ALPHABLEND) != 0; +} + +static cairo_status_t +draw_boxes (cairo_composite_rectangles_t *composite, + cairo_boxes_t *boxes) +{ + cairo_win32_display_surface_t *dst = to_win32_display_surface(composite->surface); + cairo_operator_t op = composite->op; + const cairo_pattern_t *src = &composite->source_pattern.base; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + if (boxes->num_boxes == 0 && composite->is_bounded) + return CAIRO_STATUS_SUCCESS; + + if (!boxes->is_pixel_aligned) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (op == CAIRO_OPERATOR_CLEAR) + op = CAIRO_OPERATOR_SOURCE; + + if (op == CAIRO_OPERATOR_OVER && + _cairo_pattern_is_opaque (src, &composite->bounded)) + op = CAIRO_OPERATOR_SOURCE; + + if (dst->win32.base.is_clear && + (op == CAIRO_OPERATOR_OVER || op == CAIRO_OPERATOR_ADD)) + op = CAIRO_OPERATOR_SOURCE; + + if (op == CAIRO_OPERATOR_SOURCE) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (src->type == CAIRO_PATTERN_TYPE_SURFACE) { + status = copy_boxes (dst, src, boxes); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) + status = upload_boxes (dst, src, boxes); + } else if (src->type == CAIRO_PATTERN_TYPE_SOLID) { + status = fill_boxes (dst, src, boxes); + } + return status; + } + + if (op == CAIRO_OPERATOR_OVER && can_alpha_blend (dst)) + return alpha_blend_boxes (dst, src, boxes, 255); + + return CAIRO_INT_STATUS_UNSUPPORTED; +} + +static cairo_status_t +opacity_boxes (cairo_composite_rectangles_t *composite, + cairo_boxes_t *boxes) +{ + cairo_win32_display_surface_t *dst = to_win32_display_surface(composite->surface); + cairo_operator_t op = composite->op; + const cairo_pattern_t *src = &composite->source_pattern.base; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + if (composite->mask_pattern.base.type != CAIRO_PATTERN_TYPE_SOLID) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (boxes->num_boxes == 0 && composite->is_bounded) + return CAIRO_STATUS_SUCCESS; + + if (!boxes->is_pixel_aligned) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (op != CAIRO_OPERATOR_OVER) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (!can_alpha_blend (dst)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + return alpha_blend_boxes (dst, src, boxes, + composite->mask_pattern.solid.color.alpha_short >> 8); +} + +/* high-level compositor interface */ + +static cairo_bool_t check_blit (cairo_composite_rectangles_t *composite) +{ + cairo_win32_display_surface_t *dst; + + if (composite->clip->path) + return FALSE; + + dst = to_win32_display_surface (composite->surface); + if (dst->fallback) + return FALSE; + + if (dst->win32.format != CAIRO_FORMAT_RGB24 + && dst->win32.format != CAIRO_FORMAT_ARGB32) + return FALSE; + + if (dst->win32.flags & CAIRO_WIN32_SURFACE_CAN_BITBLT) + return TRUE; + + return dst->image == NULL; +} + +static cairo_int_status_t +_cairo_win32_gdi_compositor_paint (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *composite) +{ + cairo_int_status_t status = CAIRO_INT_STATUS_UNSUPPORTED; + + if (check_blit (composite)) { + cairo_boxes_t boxes; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + _cairo_clip_steal_boxes (composite->clip, &boxes); + status = draw_boxes (composite, &boxes); + _cairo_clip_unsteal_boxes (composite->clip, &boxes); + } + + return status; +} + +static cairo_int_status_t +_cairo_win32_gdi_compositor_mask (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *composite) +{ + cairo_int_status_t status = CAIRO_INT_STATUS_UNSUPPORTED; + + if (check_blit (composite)) { + cairo_boxes_t boxes; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + _cairo_clip_steal_boxes (composite->clip, &boxes); + status = opacity_boxes (composite, &boxes); + _cairo_clip_unsteal_boxes (composite->clip, &boxes); + } + + return status; +} + +static cairo_int_status_t +_cairo_win32_gdi_compositor_stroke (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *composite, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_int_status_t status; + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (check_blit (composite) && + _cairo_path_fixed_stroke_is_rectilinear (path)) { + cairo_boxes_t boxes; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + _cairo_boxes_init_with_clip (&boxes, composite->clip); + status = _cairo_path_fixed_stroke_rectilinear_to_boxes (path, + style, + ctm, + antialias, + &boxes); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = draw_boxes (composite, &boxes); + _cairo_boxes_fini (&boxes); + } + + return status; +} + +static cairo_int_status_t +_cairo_win32_gdi_compositor_fill (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t *composite, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_int_status_t status; + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (check_blit (composite) && + _cairo_path_fixed_fill_is_rectilinear (path)) { + cairo_boxes_t boxes; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + _cairo_boxes_init_with_clip (&boxes, composite->clip); + status = _cairo_path_fixed_fill_rectilinear_to_boxes (path, + fill_rule, + antialias, + &boxes); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = draw_boxes (composite, &boxes); + _cairo_boxes_fini (&boxes); + } + + return status; +} + +static cairo_bool_t check_glyphs (cairo_composite_rectangles_t *composite, + cairo_scaled_font_t *scaled_font) +{ + if (! _cairo_clip_is_region (composite->clip)) + return FALSE; + + cairo_font_type_t type = cairo_scaled_font_get_type (scaled_font); + if (type != CAIRO_FONT_TYPE_WIN32 && type != CAIRO_FONT_TYPE_DWRITE) + return FALSE; + + if (! _cairo_pattern_is_opaque_solid (&composite->source_pattern.base)) + return FALSE; + + return (composite->op == CAIRO_OPERATOR_CLEAR || + composite->op == CAIRO_OPERATOR_SOURCE || + composite->op == CAIRO_OPERATOR_OVER); +} + +static cairo_int_status_t +_cairo_win32_gdi_compositor_glyphs (const cairo_compositor_t *compositor, + cairo_composite_rectangles_t*composite, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_bool_t overlap) +{ + cairo_int_status_t status; + + status = CAIRO_INT_STATUS_UNSUPPORTED; + if (check_blit (composite) && check_glyphs (composite, scaled_font)) { + cairo_win32_display_surface_t *dst = to_win32_display_surface (composite->surface); + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if ((dst->win32.flags & CAIRO_WIN32_SURFACE_CAN_RGB_BRUSH) == 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_win32_display_surface_set_clip(dst, composite->clip); + if (status) + return status; + + status = _cairo_win32_surface_emit_glyphs (&dst->win32, + &composite->source_pattern.base, + glyphs, + num_glyphs, + scaled_font, + TRUE); + + _cairo_win32_display_surface_unset_clip (dst); + } + + return status; +} + +const cairo_compositor_t * +_cairo_win32_gdi_compositor_get (void) +{ + static cairo_atomic_once_t once = CAIRO_ATOMIC_ONCE_INIT; + static cairo_compositor_t compositor; + + if (_cairo_atomic_init_once_enter(&once)) { + compositor.delegate = &_cairo_fallback_compositor; + + compositor.paint = _cairo_win32_gdi_compositor_paint; + compositor.mask = _cairo_win32_gdi_compositor_mask; + compositor.fill = _cairo_win32_gdi_compositor_fill; + compositor.stroke = _cairo_win32_gdi_compositor_stroke; + compositor.glyphs = _cairo_win32_gdi_compositor_glyphs; + + _cairo_atomic_init_once_leave(&once); + } + + return &compositor; +} diff --git a/local/recipes/libs/cairo/source/src/win32/cairo-win32-printing-surface.c b/local/recipes/libs/cairo/source/src/win32/cairo-win32-printing-surface.c new file mode 100644 index 0000000000..c5b5f5cab6 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/win32/cairo-win32-printing-surface.c @@ -0,0 +1,2289 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2007, 2008 Adrian Johnson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Adrian Johnson. + * + * Contributor(s): + * Adrian Johnson + * Vladimir Vukicevic + */ + +#include "cairoint.h" + +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-paginated-private.h" + +#include "cairo-clip-private.h" +#include "cairo-composite-rectangles-private.h" +#include "cairo-win32-private.h" +#include "cairo-recording-surface-inline.h" +#include "cairo-scaled-font-subsets-private.h" +#include "cairo-image-info-private.h" +#include "cairo-image-surface-inline.h" +#include "cairo-image-surface-private.h" +#include "cairo-surface-backend-private.h" +#include "cairo-surface-clipper-private.h" +#include "cairo-surface-snapshot-inline.h" +#include "cairo-surface-subsurface-private.h" + +#include + +#if !defined(POSTSCRIPT_IDENTIFY) +# define POSTSCRIPT_IDENTIFY 0x1015 +#endif + +#if !defined(PSIDENT_GDICENTRIC) +# define PSIDENT_GDICENTRIC 0x0000 +#endif + +#if !defined(GET_PS_FEATURESETTING) +# define GET_PS_FEATURESETTING 0x1019 +#endif + +#if !defined(FEATURESETTING_PSLEVEL) +# define FEATURESETTING_PSLEVEL 0x0002 +#endif + +#if !defined(GRADIENT_FILL_RECT_H) +# define GRADIENT_FILL_RECT_H 0x00 +#endif + +#if !defined(CHECKJPEGFORMAT) +# define CHECKJPEGFORMAT 0x1017 +#endif + +#if !defined(CHECKPNGFORMAT) +# define CHECKPNGFORMAT 0x1018 +#endif + +#define PELS_72DPI ((LONG)(72. / 0.0254)) + +static const char *_cairo_win32_printing_supported_mime_types[] = +{ + CAIRO_MIME_TYPE_JPEG, + CAIRO_MIME_TYPE_PNG, + NULL +}; + +static const cairo_surface_backend_t cairo_win32_printing_surface_backend; +static const cairo_paginated_surface_backend_t cairo_win32_surface_paginated_backend; + +static void +_cairo_win32_printing_surface_init_ps_mode (cairo_win32_printing_surface_t *surface) +{ + DWORD word; + INT ps_feature, ps_level; + + word = PSIDENT_GDICENTRIC; + if (ExtEscape (surface->win32.dc, POSTSCRIPT_IDENTIFY, sizeof(DWORD), (char *)&word, 0, (char *)NULL) <= 0) + return; + + ps_feature = FEATURESETTING_PSLEVEL; + if (ExtEscape (surface->win32.dc, GET_PS_FEATURESETTING, sizeof(INT), + (char *)&ps_feature, sizeof(INT), (char *)&ps_level) <= 0) + return; + + if (ps_level >= 3) + surface->win32.flags |= CAIRO_WIN32_SURFACE_CAN_RECT_GRADIENT; +} + +static void +_cairo_win32_printing_surface_init_image_support (cairo_win32_printing_surface_t *surface) +{ + DWORD word; + + word = CHECKJPEGFORMAT; + if (ExtEscape(surface->win32.dc, QUERYESCSUPPORT, sizeof(word), (char *)&word, 0, (char *)NULL) > 0) + surface->win32.flags |= CAIRO_WIN32_SURFACE_CAN_CHECK_JPEG; + + word = CHECKPNGFORMAT; + if (ExtEscape(surface->win32.dc, QUERYESCSUPPORT, sizeof(word), (char *)&word, 0, (char *)NULL) > 0) + surface->win32.flags |= CAIRO_WIN32_SURFACE_CAN_CHECK_PNG; +} + +/* When creating an EMF file, ExtTextOut with ETO_GLYPH_INDEX does not + * work unless the GDI function GdiInitializeLanguagePack() has been + * called. + * + * http://m-a-tech.blogspot.com/2009/04/emf-buffer-idiocracy.html + * + * The only information I could find on the how to use this + * undocumented function is the use in: + * + * http://src.chromium.org/viewvc/chrome/trunk/src/chrome/renderer/render_process.cc?view=markup + * + * to solve the same problem. The above code first checks if LPK.DLL + * is already loaded. If it is not it calls + * GdiInitializeLanguagePack() using the prototype + * BOOL GdiInitializeLanguagePack (int) + * and argument 0. + */ +static void +_cairo_win32_printing_surface_init_language_pack (cairo_win32_printing_surface_t *surface) +{ + typedef BOOL (WINAPI *gdi_init_lang_pack_func_t)(int); + gdi_init_lang_pack_func_t gdi_init_lang_pack; + HMODULE module; + + if (GetModuleHandleW (L"LPK.DLL")) + return; + + module = GetModuleHandleW (L"GDI32.DLL"); + if (module) { +#ifdef __GNUC__ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wcast-function-type" +#endif + gdi_init_lang_pack = (gdi_init_lang_pack_func_t) + GetProcAddress (module, "GdiInitializeLanguagePack"); +#ifdef __GNUC__ +#pragma GCC diagnostic pop +#endif + if (gdi_init_lang_pack) + gdi_init_lang_pack (0); + } +} + +/** + * _cairo_win32_printing_surface_acquire_image_pattern: + * @surface: the win32 printing surface + * @pattern: A #cairo_pattern_t of type SURFACE or RASTER_SOURCE to use as the source + * @extents: extents of the operation that is using this source + * @image_pattern: returns pattern containing acquired image. The matrix (adjusted for + * the device offset of raster source) is copied from the pattern. + * @width: returns width of the pattern + * @height: returns height of pattern + * @image_extra: returns image extra for image type surface + * + * Acquire source surface or raster source pattern. + **/ +static cairo_status_t +_cairo_win32_printing_surface_acquire_image_pattern ( + cairo_win32_printing_surface_t *surface, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents, + cairo_surface_pattern_t *image_pattern, + int *width, + int *height, + void **image_extra) +{ + cairo_status_t status; + cairo_image_surface_t *image; + cairo_matrix_t tm; + double x = 0; + double y = 0; + + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SURFACE: { + cairo_surface_t *surf = ((cairo_surface_pattern_t *) pattern)->surface; + + status = _cairo_surface_acquire_source_image (surf, &image, image_extra); + if (unlikely (status)) + return status; + + *width = image->width; + *height = image->height; + } break; + + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: { + cairo_surface_t *surf; + cairo_box_t box; + cairo_rectangle_int_t rect; + cairo_raster_source_pattern_t *raster; + + /* get the operation extents in pattern space */ + _cairo_box_from_rectangle (&box, extents); + _cairo_matrix_transform_bounding_box_fixed (&pattern->matrix, &box, NULL); + _cairo_box_round_to_rectangle (&box, &rect); + surf = _cairo_raster_source_pattern_acquire (pattern, &surface->win32.base, &rect); + if (!surf) + return CAIRO_INT_STATUS_UNSUPPORTED; + + assert (_cairo_surface_is_image (surf)); + image = (cairo_image_surface_t *) surf; + cairo_surface_get_device_offset (surf, &x, &y); + + raster = (cairo_raster_source_pattern_t *) pattern; + *width = raster->extents.width; + *height = raster->extents.height; + } break; + + case CAIRO_PATTERN_TYPE_SOLID: + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + case CAIRO_PATTERN_TYPE_MESH: + default: + ASSERT_NOT_REACHED; + return CAIRO_INT_STATUS_UNSUPPORTED; + } + + _cairo_pattern_init_for_surface (image_pattern, &image->base); + image_pattern->base.extend = pattern->extend; + cairo_matrix_init_translate (&tm, x, y); + status = cairo_matrix_invert (&tm); + /* translation matrices are invertibile */ + assert (status == CAIRO_STATUS_SUCCESS); + + image_pattern->base.matrix = pattern->matrix; + cairo_matrix_multiply (&image_pattern->base.matrix, &image_pattern->base.matrix, &tm); + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_win32_printing_surface_release_image_pattern (cairo_win32_printing_surface_t *surface, + const cairo_pattern_t *pattern, + cairo_surface_pattern_t *image_pattern, + void *image_extra) +{ + cairo_surface_t *surf = image_pattern->surface; + + _cairo_pattern_fini (&image_pattern->base); + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SURFACE: { + cairo_surface_pattern_t *surf_pat = (cairo_surface_pattern_t *) pattern; + cairo_image_surface_t *image = (cairo_image_surface_t *) surf; + _cairo_surface_release_source_image (surf_pat->surface, image, image_extra); + } break; + + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + _cairo_raster_source_pattern_release (pattern, surf); + break; + + case CAIRO_PATTERN_TYPE_SOLID: + case CAIRO_PATTERN_TYPE_LINEAR: + case CAIRO_PATTERN_TYPE_RADIAL: + case CAIRO_PATTERN_TYPE_MESH: + default: + ASSERT_NOT_REACHED; + break; + } +} + +static cairo_int_status_t +analyze_surface_pattern_transparency (cairo_win32_printing_surface_t *surface, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + cairo_surface_pattern_t image_pattern; + cairo_image_surface_t *image; + void *image_extra; + cairo_int_status_t status; + cairo_image_transparency_t transparency; + int pattern_width, pattern_height; + + status = _cairo_win32_printing_surface_acquire_image_pattern (surface, + pattern, + extents, + &image_pattern, + &pattern_width, + &pattern_height, + &image_extra); + if (status) + return status; + + image = (cairo_image_surface_t *)(image_pattern.surface); + transparency = _cairo_image_analyze_transparency (image); + switch (transparency) { + case CAIRO_IMAGE_UNKNOWN: + ASSERT_NOT_REACHED; + case CAIRO_IMAGE_IS_OPAQUE: + status = CAIRO_STATUS_SUCCESS; + break; + + case CAIRO_IMAGE_HAS_BILEVEL_ALPHA: + case CAIRO_IMAGE_HAS_ALPHA: + status = CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY; + break; + } + + _cairo_win32_printing_surface_release_image_pattern (surface, pattern, &image_pattern, image_extra); + + return status; +} + +static cairo_bool_t +surface_pattern_supported (const cairo_surface_pattern_t *pattern) +{ + if (_cairo_surface_is_recording (pattern->surface)) + return TRUE; + + if (pattern->surface->backend->acquire_source_image == NULL) + { + return FALSE; + } + + return TRUE; +} + +static cairo_bool_t +pattern_supported (cairo_win32_printing_surface_t *surface, const cairo_pattern_t *pattern) +{ + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + return TRUE; + + case CAIRO_PATTERN_TYPE_LINEAR: + return surface->win32.flags & CAIRO_WIN32_SURFACE_CAN_RECT_GRADIENT; + + case CAIRO_PATTERN_TYPE_RADIAL: + case CAIRO_PATTERN_TYPE_MESH: + return FALSE; + + case CAIRO_PATTERN_TYPE_SURFACE: + return surface_pattern_supported ((cairo_surface_pattern_t *) pattern); + + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + return TRUE; + + default: + ASSERT_NOT_REACHED; + return FALSE; + } +} + +static cairo_int_status_t +_cairo_win32_printing_surface_analyze_operation (cairo_win32_printing_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + if (! pattern_supported (surface, pattern)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (!(op == CAIRO_OPERATOR_SOURCE || + op == CAIRO_OPERATOR_OVER || + op == CAIRO_OPERATOR_CLEAR)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) pattern; + + if (surface_pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) + return CAIRO_INT_STATUS_ANALYZE_RECORDING_SURFACE_PATTERN; + } + + if (op == CAIRO_OPERATOR_SOURCE || + op == CAIRO_OPERATOR_CLEAR) + return CAIRO_STATUS_SUCCESS; + + /* CAIRO_OPERATOR_OVER is only supported for opaque patterns. If + * the pattern contains transparency, we return + * CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY to the analysis + * surface. If the analysis surface determines that there is + * anything drawn under this operation, a fallback image will be + * used. Otherwise the operation will be replayed during the + * render stage and we blend the transarency into the white + * background to convert the pattern to opaque. + */ + + if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE || pattern->type == CAIRO_PATTERN_TYPE_RASTER_SOURCE) + return analyze_surface_pattern_transparency (surface, pattern, extents); + + if (_cairo_pattern_is_opaque (pattern, NULL)) + return CAIRO_STATUS_SUCCESS; + else + return CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY; +} + +static cairo_bool_t +_cairo_win32_printing_surface_operation_supported (cairo_win32_printing_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + if (_cairo_win32_printing_surface_analyze_operation (surface, op, pattern, extents) != CAIRO_INT_STATUS_UNSUPPORTED) + return TRUE; + else + return FALSE; +} + +static void +_cairo_win32_printing_surface_init_clear_color (cairo_win32_printing_surface_t *surface, + cairo_solid_pattern_t *color) +{ + if (surface->content == CAIRO_CONTENT_COLOR_ALPHA) + _cairo_pattern_init_solid (color, CAIRO_COLOR_WHITE); + else + _cairo_pattern_init_solid (color, CAIRO_COLOR_BLACK); +} + +static COLORREF +_cairo_win32_printing_surface_flatten_transparency (cairo_win32_printing_surface_t *surface, + const cairo_color_t *color) +{ + COLORREF c; + BYTE red, green, blue; + + red = color->red_short >> 8; + green = color->green_short >> 8; + blue = color->blue_short >> 8; + + if (!CAIRO_COLOR_IS_OPAQUE(color)) { + if (surface->content == CAIRO_CONTENT_COLOR_ALPHA) { + /* Blend into white */ + uint8_t one_minus_alpha = 255 - (color->alpha_short >> 8); + + red = (color->red_short >> 8) + one_minus_alpha; + green = (color->green_short >> 8) + one_minus_alpha; + blue = (color->blue_short >> 8) + one_minus_alpha; + } else { + /* Blend into black */ + red = (color->red_short >> 8); + green = (color->green_short >> 8); + blue = (color->blue_short >> 8); + } + } + c = RGB (red, green, blue); + + return c; +} + +static cairo_status_t +_cairo_win32_printing_surface_select_solid_brush (cairo_win32_printing_surface_t *surface, + const cairo_pattern_t *source) +{ + cairo_solid_pattern_t *pattern = (cairo_solid_pattern_t *) source; + COLORREF color; + + color = _cairo_win32_printing_surface_flatten_transparency (surface, + &pattern->color); + surface->brush = CreateSolidBrush (color); + if (!surface->brush) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "CreateSolidBrush"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + surface->old_brush = SelectObject (surface->win32.dc, surface->brush); + + return CAIRO_STATUS_SUCCESS; +} + +static void +_cairo_win32_printing_surface_done_solid_brush (cairo_win32_printing_surface_t *surface) +{ + if (surface->old_brush) { + SelectObject (surface->win32.dc, surface->old_brush); + DeleteObject (surface->brush); + surface->old_brush = NULL; + } +} + +static cairo_status_t +_cairo_win32_printing_surface_get_ctm_clip_box (cairo_win32_printing_surface_t *surface, + RECT *clip) +{ + XFORM xform; + + _cairo_matrix_to_win32_xform (&surface->ctm, &xform); + if (!ModifyWorldTransform (surface->win32.dc, &xform, MWT_LEFTMULTIPLY)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "ModifyWorldTransform"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + GetClipBox (surface->win32.dc, clip); + + _cairo_matrix_to_win32_xform (&surface->gdi_ctm, &xform); + if (!SetWorldTransform (surface->win32.dc, &xform)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "SetWorldTransform"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_win32_printing_surface_paint_solid_pattern (cairo_win32_printing_surface_t *surface, + const cairo_pattern_t *pattern) +{ + RECT clip; + cairo_status_t status; + + GetClipBox (surface->win32.dc, &clip); + status = _cairo_win32_printing_surface_select_solid_brush (surface, pattern); + if (status) + return status; + + FillRect (surface->win32.dc, &clip, surface->brush); + _cairo_win32_printing_surface_done_solid_brush (surface); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_win32_printing_surface_paint_recording_pattern (cairo_win32_printing_surface_t *surface, + cairo_surface_pattern_t *pattern, + cairo_surface_t *source) +{ + cairo_content_t old_content; + cairo_matrix_t old_ctm; + cairo_bool_t old_has_ctm; + cairo_rectangle_int_t recording_extents; + cairo_int_status_t status; + cairo_extend_t extend; + cairo_matrix_t p2d; + XFORM xform; + int x_tile, y_tile, left, right, top, bottom; + RECT clip; + cairo_recording_surface_t *recording_surface = (cairo_recording_surface_t *) source; + cairo_box_t bbox; + cairo_bool_t is_subsurface; + + extend = cairo_pattern_get_extend (&pattern->base); + + p2d = pattern->base.matrix; + status = cairo_matrix_invert (&p2d); + /* _cairo_pattern_set_matrix guarantees invertibility */ + assert (status == CAIRO_INT_STATUS_SUCCESS); + + old_ctm = surface->ctm; + old_has_ctm = surface->has_ctm; + cairo_matrix_multiply (&p2d, &p2d, &surface->ctm); + surface->ctm = p2d; + SaveDC (surface->win32.dc); + _cairo_matrix_to_win32_xform (&p2d, &xform); + + if (recording_surface->base.backend->type == CAIRO_SURFACE_TYPE_SUBSURFACE) { + cairo_surface_subsurface_t *sub = (cairo_surface_subsurface_t *) recording_surface; + + recording_surface = (cairo_recording_surface_t *) (sub->target); + recording_extents = sub->extents; + is_subsurface = TRUE; + } else { + status = _cairo_recording_surface_get_bbox (recording_surface, &bbox, NULL); + if (status) + goto err; + + _cairo_box_round_to_rectangle (&bbox, &recording_extents); + } + + status = _cairo_win32_printing_surface_get_ctm_clip_box (surface, &clip); + if (status) + goto err; + + if (extend == CAIRO_EXTEND_REPEAT || extend == CAIRO_EXTEND_REFLECT) { + left = floor (clip.left / _cairo_fixed_to_double (bbox.p2.x - bbox.p1.x)); + right = ceil (clip.right / _cairo_fixed_to_double (bbox.p2.x - bbox.p1.x)); + top = floor (clip.top / _cairo_fixed_to_double (bbox.p2.y - bbox.p1.y)); + bottom = ceil (clip.bottom / _cairo_fixed_to_double (bbox.p2.y - bbox.p1.y)); + } else { + left = 0; + right = 1; + top = 0; + bottom = 1; + } + + old_content = surface->content; + if (recording_surface->base.content == CAIRO_CONTENT_COLOR) { + surface->content = CAIRO_CONTENT_COLOR; + status = _cairo_win32_printing_surface_paint_solid_pattern (surface, + &_cairo_pattern_black.base); + if (status) + goto err; + } + + for (y_tile = top; y_tile < bottom; y_tile++) { + for (x_tile = left; x_tile < right; x_tile++) { + cairo_matrix_t m; + double x, y; + + SaveDC (surface->win32.dc); + m = p2d; + cairo_matrix_translate (&m, + x_tile*recording_extents.width, + y_tile*recording_extents.height); + if (extend == CAIRO_EXTEND_REFLECT) { + if (x_tile % 2) { + cairo_matrix_translate (&m, recording_extents.width, 0); + cairo_matrix_scale (&m, -1, 1); + } + if (y_tile % 2) { + cairo_matrix_translate (&m, 0, recording_extents.height); + cairo_matrix_scale (&m, 1, -1); + } + } + surface->ctm = m; + surface->has_ctm = !_cairo_matrix_is_identity (&surface->ctm); + + /* Set clip path around bbox of the pattern. */ + BeginPath (surface->win32.dc); + + x = 0; + y = 0; + cairo_matrix_transform_point (&surface->ctm, &x, &y); + MoveToEx (surface->win32.dc, (int) x, (int) y, NULL); + + x = recording_extents.width; + y = 0; + cairo_matrix_transform_point (&surface->ctm, &x, &y); + LineTo (surface->win32.dc, (int) x, (int) y); + + x = recording_extents.width; + y = recording_extents.height; + cairo_matrix_transform_point (&surface->ctm, &x, &y); + LineTo (surface->win32.dc, (int) x, (int) y); + + x = 0; + y = recording_extents.height; + cairo_matrix_transform_point (&surface->ctm, &x, &y); + LineTo (surface->win32.dc, (int) x, (int) y); + + CloseFigure (surface->win32.dc); + EndPath (surface->win32.dc); + SelectClipPath (surface->win32.dc, RGN_AND); + + SaveDC (surface->win32.dc); /* Allow clip path to be reset during replay */ + status = _cairo_recording_surface_replay_region (&recording_surface->base, + pattern->region_array_id, + is_subsurface ? &recording_extents : NULL, + &surface->win32.base, + CAIRO_RECORDING_REGION_NATIVE); + assert (status != CAIRO_INT_STATUS_UNSUPPORTED); + /* Restore both the clip save and our earlier path SaveDC */ + RestoreDC (surface->win32.dc, -2); + + if (status) + goto err; + } + } + + surface->content = old_content; + surface->ctm = old_ctm; + surface->has_ctm = old_has_ctm; + RestoreDC (surface->win32.dc, -1); + + err: + return status; +} + +static cairo_int_status_t +_cairo_win32_printing_surface_check_jpeg (cairo_win32_printing_surface_t *surface, + cairo_surface_t *source, + const unsigned char **data, + unsigned long *length, + cairo_image_info_t *info) +{ + const unsigned char *mime_data; + unsigned long mime_data_length; + cairo_int_status_t status; + DWORD result; + + if (!(surface->win32.flags & CAIRO_WIN32_SURFACE_CAN_CHECK_JPEG)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + cairo_surface_get_mime_data (source, CAIRO_MIME_TYPE_JPEG, + &mime_data, &mime_data_length); + if (mime_data == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_image_info_get_jpeg_info (info, mime_data, mime_data_length); + if (status) + return status; + + result = 0; + if (ExtEscape(surface->win32.dc, CHECKJPEGFORMAT, mime_data_length, (char *) mime_data, + sizeof(result), (char *) &result) <= 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (result != 1) + return CAIRO_INT_STATUS_UNSUPPORTED; + + *data = mime_data; + *length = mime_data_length; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_win32_printing_surface_check_png (cairo_win32_printing_surface_t *surface, + cairo_surface_t *source, + const unsigned char **data, + unsigned long *length, + cairo_image_info_t *info) +{ + const unsigned char *mime_data; + unsigned long mime_data_length; + + cairo_int_status_t status; + DWORD result; + + if (!(surface->win32.flags & CAIRO_WIN32_SURFACE_CAN_CHECK_PNG)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + cairo_surface_get_mime_data (source, CAIRO_MIME_TYPE_PNG, + &mime_data, &mime_data_length); + if (mime_data == NULL) + return CAIRO_INT_STATUS_UNSUPPORTED; + + status = _cairo_image_info_get_png_info (info, mime_data, mime_data_length); + if (status) + return status; + + result = 0; + if (ExtEscape(surface->win32.dc, CHECKPNGFORMAT, mime_data_length, (char *) mime_data, + sizeof(result), (char *) &result) <= 0) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (result != 1) + return CAIRO_INT_STATUS_UNSUPPORTED; + + *data = mime_data; + *length = mime_data_length; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_win32_printing_surface_paint_image_pattern (cairo_win32_printing_surface_t *surface, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + cairo_int_status_t status; + cairo_surface_pattern_t image_pattern; + cairo_image_surface_t *image; + void *image_extra; + cairo_image_surface_t *opaque_image = NULL; + BITMAPINFO bi; + cairo_matrix_t m; + int oldmode; + XFORM xform; + int x_tile, y_tile, left, right, top, bottom; + int pattern_width, pattern_height; + RECT clip; + const cairo_color_t *background_color; + const unsigned char *mime_data; + unsigned long mime_size; + cairo_image_info_t mime_info; + cairo_bool_t use_mime; + DWORD mime_type; + + /* If we can't use StretchDIBits with this surface, we can't do anything + * here. + */ + if (!(surface->win32.flags & CAIRO_WIN32_SURFACE_CAN_STRETCHDIB)) + return CAIRO_INT_STATUS_UNSUPPORTED; + + if (surface->content == CAIRO_CONTENT_COLOR_ALPHA) + background_color = CAIRO_COLOR_WHITE; + else + background_color = CAIRO_COLOR_BLACK; + + status = _cairo_win32_printing_surface_acquire_image_pattern (surface, + pattern, + extents, + &image_pattern, + &pattern_width, + &pattern_height, + &image_extra); + if (status) + return status; + + image = (cairo_image_surface_t *)(image_pattern.surface); + if (image->base.status) { + status = image->base.status; + goto CLEANUP_IMAGE; + } + + if (image->width == 0 || image->height == 0) { + status = CAIRO_STATUS_SUCCESS; + goto CLEANUP_IMAGE; + } + + mime_type = BI_JPEG; + status = _cairo_win32_printing_surface_check_jpeg (surface, + image_pattern.surface, + &mime_data, + &mime_size, + &mime_info); + if (status == CAIRO_INT_STATUS_UNSUPPORTED) { + mime_type = BI_PNG; + status = _cairo_win32_printing_surface_check_png (surface, + image_pattern.surface, + &mime_data, + &mime_size, + &mime_info); + } + if (_cairo_int_status_is_error (status)) + return status; + + use_mime = (status == CAIRO_INT_STATUS_SUCCESS); + + if (!use_mime && image->format != CAIRO_FORMAT_RGB24) { + cairo_surface_t *opaque_surface; + cairo_surface_pattern_t image_pattern; + cairo_solid_pattern_t background_pattern; + + opaque_surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + image->width, + image->height); + if (opaque_surface->status) { + status = opaque_surface->status; + goto CLEANUP_OPAQUE_IMAGE; + } + + _cairo_pattern_init_solid (&background_pattern, + background_color); + status = _cairo_surface_paint (opaque_surface, + CAIRO_OPERATOR_SOURCE, + &background_pattern.base, + NULL); + if (status) + goto CLEANUP_OPAQUE_IMAGE; + + _cairo_pattern_init_for_surface (&image_pattern, &image->base); + status = _cairo_surface_paint (opaque_surface, + CAIRO_OPERATOR_OVER, + &image_pattern.base, + NULL); + _cairo_pattern_fini (&image_pattern.base); + if (status) + goto CLEANUP_OPAQUE_IMAGE; + + opaque_image = (cairo_image_surface_t *) opaque_surface; + } else { + opaque_image = image; + } + + bi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); + bi.bmiHeader.biWidth = use_mime ? mime_info.width : opaque_image->width; + bi.bmiHeader.biHeight = use_mime ? - mime_info.height : -opaque_image->height; + bi.bmiHeader.biSizeImage = use_mime ? mime_size : 0; + bi.bmiHeader.biXPelsPerMeter = PELS_72DPI; + bi.bmiHeader.biYPelsPerMeter = PELS_72DPI; + bi.bmiHeader.biPlanes = 1; + bi.bmiHeader.biBitCount = 32; + bi.bmiHeader.biCompression = use_mime ? mime_type : BI_RGB; + bi.bmiHeader.biClrUsed = 0; + bi.bmiHeader.biClrImportant = 0; + + m = image_pattern.base.matrix; + status = cairo_matrix_invert (&m); + /* _cairo_pattern_set_matrix guarantees invertibility */ + assert (status == CAIRO_INT_STATUS_SUCCESS); + + cairo_matrix_multiply (&m, &m, &surface->ctm); + cairo_matrix_multiply (&m, &m, &surface->gdi_ctm); + SaveDC (surface->win32.dc); + _cairo_matrix_to_win32_xform (&m, &xform); + + if (! SetWorldTransform (surface->win32.dc, &xform)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "SetWorldTransform"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + goto CLEANUP_OPAQUE_IMAGE; + } + + oldmode = SetStretchBltMode(surface->win32.dc, HALFTONE); + + GetClipBox (surface->win32.dc, &clip); + if (pattern->extend == CAIRO_EXTEND_REPEAT || pattern->extend == CAIRO_EXTEND_REFLECT) { + left = floor ( clip.left / (double) opaque_image->width); + right = ceil (clip.right / (double) opaque_image->width); + top = floor (clip.top / (double) opaque_image->height); + bottom = ceil (clip.bottom / (double) opaque_image->height); + } else { + left = 0; + right = 1; + top = 0; + bottom = 1; + } + + for (y_tile = top; y_tile < bottom; y_tile++) { + for (x_tile = left; x_tile < right; x_tile++) { + if (!StretchDIBits (surface->win32.dc, + x_tile*opaque_image->width, + y_tile*opaque_image->height, + opaque_image->width, + opaque_image->height, + 0, + 0, + use_mime ? mime_info.width : opaque_image->width, + use_mime ? mime_info.height : opaque_image->height, + use_mime ? mime_data : opaque_image->data, + &bi, + DIB_RGB_COLORS, + SRCCOPY)) + { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "StretchDIBits"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + goto CLEANUP_OPAQUE_IMAGE; + } + } + } + SetStretchBltMode(surface->win32.dc, oldmode); + RestoreDC (surface->win32.dc, -1); + +CLEANUP_OPAQUE_IMAGE: + if (opaque_image != image) + cairo_surface_destroy (&opaque_image->base); +CLEANUP_IMAGE: + _cairo_win32_printing_surface_release_image_pattern (surface, pattern, &image_pattern, image_extra); + + return status; +} + +static void +vertex_set_color (TRIVERTEX *vert, cairo_color_stop_t *color) +{ + /* MSDN says that the range here is 0x0000 .. 0xff00; + * that may well be a typo, but just chop the low bits + * here. */ + vert->Alpha = 0xff00; + vert->Red = color->red_short & 0xff00; + vert->Green = color->green_short & 0xff00; + vert->Blue = color->blue_short & 0xff00; +} + +static cairo_int_status_t +_cairo_win32_printing_surface_paint_linear_pattern (cairo_win32_printing_surface_t *surface, + cairo_linear_pattern_t *pattern) +{ + TRIVERTEX *vert; + GRADIENT_RECT *rect; + RECT clip; + XFORM xform; + int i, num_stops; + cairo_matrix_t mat, rot; + double p1x, p1y, p2x, p2y, xd, yd, d, sn, cs; + cairo_extend_t extend; + int range_start, range_stop, num_ranges, num_rects, stop; + int total_verts, total_rects; + cairo_status_t status; + + extend = cairo_pattern_get_extend (&pattern->base.base); + SaveDC (surface->win32.dc); + + mat = pattern->base.base.matrix; + status = cairo_matrix_invert (&mat); + /* _cairo_pattern_set_matrix guarantees invertibility */ + assert (status == CAIRO_STATUS_SUCCESS); + + cairo_matrix_multiply (&mat, &surface->ctm, &mat); + + p1x = pattern->pd1.x; + p1y = pattern->pd1.y; + p2x = pattern->pd2.x; + p2y = pattern->pd2.y; + cairo_matrix_translate (&mat, p1x, p1y); + + xd = p2x - p1x; + yd = p2y - p1y; + d = sqrt (xd*xd + yd*yd); + sn = yd/d; + cs = xd/d; + cairo_matrix_init (&rot, + cs, sn, + -sn, cs, + 0, 0); + cairo_matrix_multiply (&mat, &rot, &mat); + + _cairo_matrix_to_win32_xform (&mat, &xform); + + if (!SetWorldTransform (surface->win32.dc, &xform)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "SetWorldTransform"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + GetClipBox (surface->win32.dc, &clip); + + if (extend == CAIRO_EXTEND_REPEAT || extend == CAIRO_EXTEND_REFLECT) { + range_start = floor (clip.left / d); + range_stop = ceil (clip.right / d); + } else { + range_start = 0; + range_stop = 1; + } + num_ranges = range_stop - range_start; + num_stops = pattern->base.n_stops; + num_rects = num_stops - 1; + + /* Add an extra four points and two rectangles for EXTEND_PAD */ + vert = _cairo_malloc (sizeof (TRIVERTEX) * (num_rects*2*num_ranges + 4)); + rect = _cairo_malloc (sizeof (GRADIENT_RECT) * (num_rects*num_ranges + 2)); + + for (i = 0; i < num_ranges*num_rects; i++) { + vert[i*2].y = (LONG) clip.top; + if (i%num_rects == 0) { + stop = 0; + if (extend == CAIRO_EXTEND_REFLECT && (range_start+(i/num_rects))%2) + stop = num_rects; + vert[i*2].x = (LONG)(d*(range_start + i/num_rects)); + vertex_set_color (&vert[i*2], &pattern->base.stops[stop].color); + } else { + vert[i*2].x = vert[i*2-1].x; + vert[i*2].Red = vert[i*2-1].Red; + vert[i*2].Green = vert[i*2-1].Green; + vert[i*2].Blue = vert[i*2-1].Blue; + vert[i*2].Alpha = vert[i*2-1].Alpha; + } + + stop = i%num_rects + 1; + vert[i*2+1].x = (LONG)(d*(range_start + i/num_rects + pattern->base.stops[stop].offset)); + vert[i*2+1].y = (LONG) clip.bottom; + if (extend == CAIRO_EXTEND_REFLECT && (range_start+(i/num_rects))%2) + stop = num_rects - stop; + vertex_set_color (&vert[i*2+1], &pattern->base.stops[stop].color); + + rect[i].UpperLeft = i*2; + rect[i].LowerRight = i*2 + 1; + } + total_verts = 2*num_ranges*num_rects; + total_rects = num_ranges*num_rects; + + if (extend == CAIRO_EXTEND_PAD) { + vert[i*2].x = vert[i*2-1].x; + vert[i*2].y = (LONG) clip.top; + vert[i*2].Red = vert[i*2-1].Red; + vert[i*2].Green = vert[i*2-1].Green; + vert[i*2].Blue = vert[i*2-1].Blue; + vert[i*2].Alpha = 0xff00; + vert[i*2+1].x = clip.right; + vert[i*2+1].y = (LONG) clip.bottom; + vert[i*2+1].Red = vert[i*2-1].Red; + vert[i*2+1].Green = vert[i*2-1].Green; + vert[i*2+1].Blue = vert[i*2-1].Blue; + vert[i*2+1].Alpha = 0xff00; + rect[i].UpperLeft = i*2; + rect[i].LowerRight = i*2 + 1; + + i++; + + vert[i*2].x = clip.left; + vert[i*2].y = (LONG) clip.top; + vert[i*2].Red = vert[0].Red; + vert[i*2].Green = vert[0].Green; + vert[i*2].Blue = vert[0].Blue; + vert[i*2].Alpha = 0xff00; + vert[i*2+1].x = vert[0].x; + vert[i*2+1].y = (LONG) clip.bottom; + vert[i*2+1].Red = vert[0].Red; + vert[i*2+1].Green = vert[0].Green; + vert[i*2+1].Blue = vert[0].Blue; + vert[i*2+1].Alpha = 0xff00; + rect[i].UpperLeft = i*2; + rect[i].LowerRight = i*2 + 1; + + total_verts += 4; + total_rects += 2; + } + + if (!GradientFill (surface->win32.dc, + vert, total_verts, + rect, total_rects, + GRADIENT_FILL_RECT_H)) + { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "GradientFill"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + + free (rect); + free (vert); + RestoreDC (surface->win32.dc, -1); + + return 0; +} + +static cairo_int_status_t +_cairo_win32_printing_surface_paint_pattern (cairo_win32_printing_surface_t *surface, + const cairo_pattern_t *pattern, + const cairo_rectangle_int_t *extents) +{ + cairo_status_t status; + + switch (pattern->type) { + case CAIRO_PATTERN_TYPE_SOLID: + status = _cairo_win32_printing_surface_paint_solid_pattern (surface, pattern); + if (status) + return status; + break; + + case CAIRO_PATTERN_TYPE_SURFACE: { + cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) pattern; + cairo_surface_t *source = surface_pattern->surface; + cairo_surface_t *to_destroy = NULL; + + if (_cairo_surface_is_snapshot (source)) + to_destroy = source = _cairo_surface_snapshot_get_target (source); + + if ( _cairo_surface_is_recording (source)) + status = _cairo_win32_printing_surface_paint_recording_pattern (surface, surface_pattern, source); + else + status = _cairo_win32_printing_surface_paint_image_pattern (surface, pattern, extents); + + cairo_surface_destroy (to_destroy); + + if (status) + return status; + break; + } + case CAIRO_PATTERN_TYPE_RASTER_SOURCE: + status = _cairo_win32_printing_surface_paint_image_pattern (surface, pattern, extents); + if (status) + return status; + break; + + case CAIRO_PATTERN_TYPE_LINEAR: + status = _cairo_win32_printing_surface_paint_linear_pattern (surface, (cairo_linear_pattern_t *) pattern); + if (status) + return status; + break; + + case CAIRO_PATTERN_TYPE_RADIAL: + return CAIRO_INT_STATUS_UNSUPPORTED; + break; + + case CAIRO_PATTERN_TYPE_MESH: + ASSERT_NOT_REACHED; + } + + return CAIRO_STATUS_SUCCESS; +} + +typedef struct _win32_print_path_info { + cairo_win32_printing_surface_t *surface; +} win32_path_info_t; + +static cairo_status_t +_cairo_win32_printing_surface_path_move_to (void *closure, + const cairo_point_t *point) +{ + win32_path_info_t *path_info = closure; + + if (path_info->surface->has_ctm) { + double x, y; + + x = _cairo_fixed_to_double (point->x); + y = _cairo_fixed_to_double (point->y); + cairo_matrix_transform_point (&path_info->surface->ctm, &x, &y); + MoveToEx (path_info->surface->win32.dc, (int) x, (int) y, NULL); + } else { + MoveToEx (path_info->surface->win32.dc, + _cairo_fixed_integer_part (point->x), + _cairo_fixed_integer_part (point->y), + NULL); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_win32_printing_surface_path_line_to (void *closure, + const cairo_point_t *point) +{ + win32_path_info_t *path_info = closure; + + path_info->surface->path_empty = FALSE; + if (path_info->surface->has_ctm) { + double x, y; + + x = _cairo_fixed_to_double (point->x); + y = _cairo_fixed_to_double (point->y); + cairo_matrix_transform_point (&path_info->surface->ctm, &x, &y); + LineTo (path_info->surface->win32.dc, (int) x, (int) y); + } else { + LineTo (path_info->surface->win32.dc, + _cairo_fixed_integer_part (point->x), + _cairo_fixed_integer_part (point->y)); + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_win32_printing_surface_path_curve_to (void *closure, + const cairo_point_t *b, + const cairo_point_t *c, + const cairo_point_t *d) +{ + win32_path_info_t *path_info = closure; + POINT points[3]; + + path_info->surface->path_empty = FALSE; + if (path_info->surface->has_ctm) { + double x, y; + + x = _cairo_fixed_to_double (b->x); + y = _cairo_fixed_to_double (b->y); + cairo_matrix_transform_point (&path_info->surface->ctm, &x, &y); + points[0].x = (LONG) x; + points[0].y = (LONG) y; + + x = _cairo_fixed_to_double (c->x); + y = _cairo_fixed_to_double (c->y); + cairo_matrix_transform_point (&path_info->surface->ctm, &x, &y); + points[1].x = (LONG) x; + points[1].y = (LONG) y; + + x = _cairo_fixed_to_double (d->x); + y = _cairo_fixed_to_double (d->y); + cairo_matrix_transform_point (&path_info->surface->ctm, &x, &y); + points[2].x = (LONG) x; + points[2].y = (LONG) y; + } else { + points[0].x = _cairo_fixed_integer_part (b->x); + points[0].y = _cairo_fixed_integer_part (b->y); + points[1].x = _cairo_fixed_integer_part (c->x); + points[1].y = _cairo_fixed_integer_part (c->y); + points[2].x = _cairo_fixed_integer_part (d->x); + points[2].y = _cairo_fixed_integer_part (d->y); + } + PolyBezierTo (path_info->surface->win32.dc, points, 3); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_win32_printing_surface_path_close_path (void *closure) +{ + win32_path_info_t *path_info = closure; + + CloseFigure (path_info->surface->win32.dc); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_win32_printing_surface_emit_path (cairo_win32_printing_surface_t *surface, + const cairo_path_fixed_t *path) +{ + win32_path_info_t path_info; + + path_info.surface = surface; + return _cairo_path_fixed_interpret (path, + _cairo_win32_printing_surface_path_move_to, + _cairo_win32_printing_surface_path_line_to, + _cairo_win32_printing_surface_path_curve_to, + _cairo_win32_printing_surface_path_close_path, + &path_info); +} + +static cairo_int_status_t +_cairo_win32_printing_surface_show_page (void *abstract_surface) +{ + cairo_win32_printing_surface_t *surface = abstract_surface; + + /* Undo both SaveDC's that we did in start_page */ + RestoreDC (surface->win32.dc, -2); + + /* Invalidate extents since the size of the next page is not known at + * this point. + */ + surface->extents_valid = FALSE; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_cairo_win32_printing_surface_clipper_intersect_clip_path (cairo_surface_clipper_t *clipper, + cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias) +{ + cairo_win32_printing_surface_t *surface = cairo_container_of (clipper, + cairo_win32_printing_surface_t, + clipper); + cairo_status_t status; + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) + return CAIRO_STATUS_SUCCESS; + + if (path == NULL) { + RestoreDC (surface->win32.dc, -1); + SaveDC (surface->win32.dc); + + return CAIRO_STATUS_SUCCESS; + } + + BeginPath (surface->win32.dc); + status = _cairo_win32_printing_surface_emit_path (surface, path); + EndPath (surface->win32.dc); + + switch (fill_rule) { + case CAIRO_FILL_RULE_WINDING: + SetPolyFillMode (surface->win32.dc, WINDING); + break; + case CAIRO_FILL_RULE_EVEN_ODD: + SetPolyFillMode (surface->win32.dc, ALTERNATE); + break; + default: + ASSERT_NOT_REACHED; + } + + SelectClipPath (surface->win32.dc, RGN_AND); + + return status; +} + +static cairo_bool_t +_cairo_win32_printing_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle) +{ + cairo_win32_printing_surface_t *surface = abstract_surface; + + if (surface->extents_valid) + *rectangle = surface->win32.extents; + + return surface->extents_valid; +} + +static void +_cairo_win32_printing_surface_get_font_options (void *abstract_surface, + cairo_font_options_t *options) +{ + _cairo_font_options_init_default (options); + + cairo_font_options_set_hint_style (options, CAIRO_HINT_STYLE_NONE); + cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_OFF); + cairo_font_options_set_antialias (options, CAIRO_ANTIALIAS_GRAY); + _cairo_font_options_set_round_glyph_positions (options, CAIRO_ROUND_GLYPH_POS_ON); +} + +static cairo_int_status_t +_cairo_win32_printing_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_clip_t *clip) +{ + cairo_win32_printing_surface_t *surface = abstract_surface; + cairo_solid_pattern_t clear; + cairo_composite_rectangles_t extents; + cairo_status_t status; + + status = _cairo_composite_rectangles_init_for_paint (&extents, + &surface->win32.base, + op, source, clip); + if (unlikely (status)) + return status; + + status = _cairo_surface_clipper_set_clip (&surface->clipper, clip); + if (unlikely (status)) + goto cleanup_composite; + + if (op == CAIRO_OPERATOR_CLEAR) { + _cairo_win32_printing_surface_init_clear_color (surface, &clear); + source = (cairo_pattern_t*) &clear; + op = CAIRO_OPERATOR_SOURCE; + } + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + status = _cairo_win32_printing_surface_analyze_operation (surface, op, source, &extents.bounded); + goto cleanup_composite; + } + + assert (_cairo_win32_printing_surface_operation_supported (surface, op, source, &extents.bounded)); + + status = _cairo_win32_printing_surface_paint_pattern (surface, source, &extents.bounded); + + cleanup_composite: + _cairo_composite_rectangles_fini (&extents); + return status; +} + +static int +_cairo_win32_line_cap (cairo_line_cap_t cap) +{ + switch (cap) { + case CAIRO_LINE_CAP_BUTT: + return PS_ENDCAP_FLAT; + case CAIRO_LINE_CAP_ROUND: + return PS_ENDCAP_ROUND; + case CAIRO_LINE_CAP_SQUARE: + return PS_ENDCAP_SQUARE; + default: + ASSERT_NOT_REACHED; + return 0; + } +} + +static int +_cairo_win32_line_join (cairo_line_join_t join) +{ + switch (join) { + case CAIRO_LINE_JOIN_MITER: + return PS_JOIN_MITER; + case CAIRO_LINE_JOIN_ROUND: + return PS_JOIN_ROUND; + case CAIRO_LINE_JOIN_BEVEL: + return PS_JOIN_BEVEL; + default: + ASSERT_NOT_REACHED; + return 0; + } +} + +static void +_cairo_matrix_factor_out_scale (cairo_matrix_t *m, double *scale) +{ + double s; + + s = fabs (m->xx); + if (fabs (m->xy) > s) + s = fabs (m->xy); + if (fabs (m->yx) > s) + s = fabs (m->yx); + if (fabs (m->yy) > s) + s = fabs (m->yy); + *scale = s; + s = 1.0/s; + cairo_matrix_scale (m, s, s); +} + +static cairo_int_status_t +_cairo_win32_printing_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + const cairo_stroke_style_t *style, + const cairo_matrix_t *stroke_ctm, + const cairo_matrix_t *stroke_ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_win32_printing_surface_t *surface = abstract_surface; + cairo_int_status_t status; + HPEN pen; + LOGBRUSH brush; + COLORREF color; + XFORM xform; + DWORD pen_style; + DWORD *dash_array; + HGDIOBJ obj; + unsigned int i; + cairo_solid_pattern_t clear; + cairo_matrix_t mat; + double scale; + cairo_composite_rectangles_t extents; + + status = _cairo_composite_rectangles_init_for_stroke (&extents, + &surface->win32.base, + op, source, + path, style, stroke_ctm, + clip); + if (unlikely (status)) + return status; + + /* use the more accurate extents */ + { + cairo_rectangle_int_t r; + cairo_box_t b; + + status = _cairo_path_fixed_stroke_extents (path, style, + stroke_ctm, stroke_ctm_inverse, + tolerance, + &r); + if (unlikely (status)) + goto cleanup_composite; + + _cairo_box_from_rectangle (&b, &r); + status = _cairo_composite_rectangles_intersect_mask_extents (&extents, &b); + if (unlikely (status)) + goto cleanup_composite; + } + + status = _cairo_surface_clipper_set_clip (&surface->clipper, clip); + if (unlikely (status)) + goto cleanup_composite; + + if (op == CAIRO_OPERATOR_CLEAR) { + _cairo_win32_printing_surface_init_clear_color (surface, &clear); + source = (cairo_pattern_t*) &clear; + op = CAIRO_OPERATOR_SOURCE; + } + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + /* Win32 does not support a dash offset. */ + if (style->num_dashes > 0 && style->dash_offset != 0.0) + status = CAIRO_INT_STATUS_UNSUPPORTED; + else + status = _cairo_win32_printing_surface_analyze_operation (surface, op, source, &extents.bounded); + + goto cleanup_composite; + } + + assert (_cairo_win32_printing_surface_operation_supported (surface, op, source, &extents.bounded)); + assert (!(style->num_dashes > 0 && style->dash_offset != 0.0)); + + cairo_matrix_multiply (&mat, stroke_ctm, &surface->ctm); + _cairo_matrix_factor_out_scale (&mat, &scale); + + pen_style = style->is_hairline ? PS_COSMETIC : PS_GEOMETRIC; + dash_array = NULL; + if (style->num_dashes) { + pen_style |= PS_USERSTYLE; + dash_array = _cairo_calloc_ab (sizeof (DWORD), style->num_dashes); + for (i = 0; i < style->num_dashes; i++) { + dash_array[i] = (DWORD) (scale * style->dash[i]); + } + } else { + pen_style |= PS_SOLID; + } + + SetMiterLimit (surface->win32.dc, (FLOAT) (style->miter_limit), NULL); + if (source->type == CAIRO_PATTERN_TYPE_SOLID) { + cairo_solid_pattern_t *solid = (cairo_solid_pattern_t *) source; + + + color = _cairo_win32_printing_surface_flatten_transparency (surface, + &solid->color); + } else { + /* Color not used as the pen will only be used by WidenPath() */ + color = RGB (0,0,0); + } + brush.lbStyle = BS_SOLID; + brush.lbColor = color; + brush.lbHatch = 0; + if (!style->is_hairline) { + pen_style |= _cairo_win32_line_cap (style->line_cap); + pen_style |= _cairo_win32_line_join (style->line_join); + } + pen = ExtCreatePen(pen_style, + style->is_hairline ? 1 : scale * style->line_width, + &brush, + style->num_dashes, + dash_array); + if (pen == NULL) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "ExtCreatePen"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + goto cleanup_composite; + } + + obj = SelectObject (surface->win32.dc, pen); + if (obj == NULL) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "SelectObject"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + goto cleanup_composite; + } + + BeginPath (surface->win32.dc); + status = _cairo_win32_printing_surface_emit_path (surface, path); + EndPath (surface->win32.dc); + if (unlikely (status)) + goto cleanup_composite; + + /* + * Switch to user space to set line parameters + */ + SaveDC (surface->win32.dc); + + _cairo_matrix_to_win32_xform (&mat, &xform); + xform.eDx = 0.0f; + xform.eDy = 0.0f; + + if (!ModifyWorldTransform (surface->win32.dc, &xform, MWT_LEFTMULTIPLY)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "ModifyWorldTransform"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + goto cleanup_composite; + } + + if (source->type == CAIRO_PATTERN_TYPE_SOLID) { + StrokePath (surface->win32.dc); + } else { + if (!WidenPath (surface->win32.dc)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "WidenPath"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + goto cleanup_composite; + } + if (!SelectClipPath (surface->win32.dc, RGN_AND)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "SelectClipPath"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + goto cleanup_composite; + } + + /* Return to device space to paint the pattern */ + _cairo_matrix_to_win32_xform (&surface->gdi_ctm, &xform); + if (!SetWorldTransform (surface->win32.dc, &xform)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "SetWorldTransform"); + status = _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + goto cleanup_composite; + } + status = _cairo_win32_printing_surface_paint_pattern (surface, source, &extents.bounded); + } + RestoreDC (surface->win32.dc, -1); + DeleteObject (pen); + free (dash_array); + +cleanup_composite: + _cairo_composite_rectangles_fini (&extents); + return status; +} + +static cairo_int_status_t +_cairo_win32_printing_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + const cairo_clip_t *clip) +{ + cairo_win32_printing_surface_t *surface = abstract_surface; + cairo_int_status_t status; + cairo_solid_pattern_t clear; + cairo_composite_rectangles_t extents; + + status = _cairo_composite_rectangles_init_for_fill (&extents, + &surface->win32.base, + op, source, path, + clip); + if (unlikely (status)) + return status; + + /* use the more accurate extents */ + { + cairo_rectangle_int_t r; + cairo_box_t b; + + _cairo_path_fixed_fill_extents (path, + fill_rule, + tolerance, + &r); + + _cairo_box_from_rectangle (&b, &r); + status = _cairo_composite_rectangles_intersect_mask_extents (&extents, &b); + if (unlikely (status)) + goto cleanup_composite; + } + + status = _cairo_surface_clipper_set_clip (&surface->clipper, clip); + if (unlikely (status)) + goto cleanup_composite; + + if (op == CAIRO_OPERATOR_CLEAR) { + _cairo_win32_printing_surface_init_clear_color (surface, &clear); + source = (cairo_pattern_t*) &clear; + op = CAIRO_OPERATOR_SOURCE; + } + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + status = _cairo_win32_printing_surface_analyze_operation (surface, op, source, &extents.bounded); + goto cleanup_composite; + } + + assert (_cairo_win32_printing_surface_operation_supported (surface, op, source, &extents.bounded)); + + surface->path_empty = TRUE; + BeginPath (surface->win32.dc); + status = _cairo_win32_printing_surface_emit_path (surface, path); + EndPath (surface->win32.dc); + + switch (fill_rule) { + case CAIRO_FILL_RULE_WINDING: + SetPolyFillMode (surface->win32.dc, WINDING); + break; + case CAIRO_FILL_RULE_EVEN_ODD: + SetPolyFillMode (surface->win32.dc, ALTERNATE); + break; + default: + ASSERT_NOT_REACHED; + } + + if (source->type == CAIRO_PATTERN_TYPE_SOLID) { + status = _cairo_win32_printing_surface_select_solid_brush (surface, source); + if (unlikely (status)) + goto cleanup_composite; + + FillPath (surface->win32.dc); + _cairo_win32_printing_surface_done_solid_brush (surface); + } else if (surface->path_empty == FALSE) { + SaveDC (surface->win32.dc); + SelectClipPath (surface->win32.dc, RGN_AND); + status = _cairo_win32_printing_surface_paint_pattern (surface, source, &extents.bounded); + RestoreDC (surface->win32.dc, -1); + } + + fflush(stderr); + +cleanup_composite: + _cairo_composite_rectangles_fini (&extents); + return status; +} + + +static cairo_int_status_t +_cairo_win32_printing_surface_emit_win32_glyphs (cairo_win32_printing_surface_t *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_matrix_t ctm; + cairo_glyph_t *unicode_glyphs; + cairo_scaled_font_subsets_glyph_t subset_glyph; + int i, first; + cairo_bool_t sequence_is_unicode; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + /* Where possible reverse the glyph indices back to unicode + * characters. Strings of glyphs that could not be reversed to + * unicode will be printed with ETO_GLYPH_INDEX. + * + * As _cairo_win32_scaled_font_index_to_ucs4() is a slow + * operation, the font subsetting function + * _cairo_scaled_font_subsets_map_glyph() is used to obtain + * the unicode value because it caches the reverse mapping in + * the subsets. + */ + + if (surface->has_ctm) { + for (i = 0; i < num_glyphs; i++) + cairo_matrix_transform_point (&surface->ctm, &glyphs[i].x, &glyphs[i].y); + cairo_matrix_multiply (&ctm, &scaled_font->ctm, &surface->ctm); + scaled_font = cairo_scaled_font_create (scaled_font->font_face, + &scaled_font->font_matrix, + &ctm, + &scaled_font->options); + } + + unicode_glyphs = _cairo_malloc_ab (num_glyphs, sizeof (cairo_glyph_t)); + if (unicode_glyphs == NULL) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + memcpy (unicode_glyphs, glyphs, num_glyphs * sizeof (cairo_glyph_t)); + for (i = 0; i < num_glyphs; i++) { + status = _cairo_scaled_font_subsets_map_glyph (surface->font_subsets, + scaled_font, + glyphs[i].index, + NULL, 0, + &subset_glyph); + if (status) + goto fail; + + unicode_glyphs[i].index = subset_glyph.unicode; + } + + i = 0; + first = 0; + sequence_is_unicode = unicode_glyphs[0].index <= 0xffff; + while (i < num_glyphs) { + if (i == num_glyphs - 1 || + ((unicode_glyphs[i + 1].index < 0xffff) != sequence_is_unicode)) + { + status = _cairo_win32_surface_emit_glyphs (&surface->win32, + source, + sequence_is_unicode ? &unicode_glyphs[first] : &glyphs[first], + i - first + 1, + scaled_font, + ! sequence_is_unicode); + first = i + 1; + if (i < num_glyphs - 1) + sequence_is_unicode = unicode_glyphs[i + 1].index <= 0xffff; + } + i++; + } + +fail: + if (surface->has_ctm) + cairo_scaled_font_destroy (scaled_font); + + free (unicode_glyphs); + + return status; +} + +static cairo_int_status_t +_cairo_win32_printing_surface_show_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + const cairo_clip_t *clip) +{ + cairo_win32_printing_surface_t *surface = abstract_surface; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + cairo_scaled_glyph_t *scaled_glyph; + cairo_pattern_t *opaque = NULL; + int i; + cairo_matrix_t old_ctm; + cairo_bool_t old_has_ctm; + cairo_solid_pattern_t clear; + cairo_composite_rectangles_t extents; + cairo_bool_t overlap; + cairo_scaled_font_t *local_scaled_font = NULL; + + status = _cairo_composite_rectangles_init_for_glyphs (&extents, + &surface->win32.base, + op, source, + scaled_font, + glyphs, num_glyphs, + clip, + &overlap); + if (unlikely (status)) + return status; + + status = _cairo_surface_clipper_set_clip (&surface->clipper, clip); + if (unlikely (status)) + goto cleanup_composite; + + if (op == CAIRO_OPERATOR_CLEAR) { + _cairo_win32_printing_surface_init_clear_color (surface, &clear); + source = (cairo_pattern_t*) &clear; + op = CAIRO_OPERATOR_SOURCE; + } + + if (surface->paginated_mode == CAIRO_PAGINATED_MODE_ANALYZE) { + /* When printing bitmap fonts to a printer DC, Windows may + * substitute an outline font for bitmap font. As the win32 + * font backend always uses a screen DC when obtaining the + * font metrics the metrics of the substituted font will not + * match the metrics that the win32 font backend returns. + * + * If we are printing a bitmap font, use fallback images to + * ensure the font is not substituted. + */ +#if CAIRO_HAS_WIN32_FONT + if (cairo_scaled_font_get_type (scaled_font) == CAIRO_FONT_TYPE_WIN32) { + if (_cairo_win32_scaled_font_is_bitmap (scaled_font)) { + status = CAIRO_INT_STATUS_UNSUPPORTED; + goto cleanup_composite; + } else { + status = _cairo_win32_printing_surface_analyze_operation (surface, op, source, &extents.bounded); + goto cleanup_composite; + } + } +#endif + +#if CAIRO_HAS_DWRITE_FONT + if (cairo_scaled_font_get_type (scaled_font) == CAIRO_FONT_TYPE_DWRITE) { + status = _cairo_win32_printing_surface_analyze_operation (surface, op, source, &extents.bounded); + goto cleanup_composite; + } +#endif + + /* For non win32 fonts we need to check that each glyph has a + * path available. If a path is not available, + * _cairo_scaled_glyph_lookup() will return + * CAIRO_INT_STATUS_UNSUPPORTED and a fallback image will be + * used. + */ + _cairo_scaled_font_freeze_cache (scaled_font); + for (i = 0; i < num_glyphs; i++) { + status = _cairo_scaled_glyph_lookup (scaled_font, + glyphs[i].index, + CAIRO_SCALED_GLYPH_INFO_PATH, + NULL, /* foreground color */ + &scaled_glyph); + if (status) + break; + } + _cairo_scaled_font_thaw_cache (scaled_font); + if (unlikely (status)) + goto cleanup_composite; + + status = _cairo_win32_printing_surface_analyze_operation (surface, op, source, &extents.bounded); + goto cleanup_composite; + } + + if (source->type == CAIRO_PATTERN_TYPE_SOLID) { + cairo_solid_pattern_t *solid = (cairo_solid_pattern_t *) source; + COLORREF color; + + color = _cairo_win32_printing_surface_flatten_transparency (surface, + &solid->color); + opaque = cairo_pattern_create_rgb (GetRValue (color) / 255.0, + GetGValue (color) / 255.0, + GetBValue (color) / 255.0); + if (unlikely (opaque->status)) { + status = opaque->status; + goto cleanup_composite; + } + source = opaque; + } + +#if CAIRO_HAS_DWRITE_FONT + /* For a printer, the dwrite path is not desirable as it goes through the + * bitmap-blitting GDI interop route. Better to create a win32 (GDI) font + * so that ExtTextOut can be used, giving the printer driver the chance + * to do the right thing with the text. + */ + if (cairo_scaled_font_get_type (scaled_font) == CAIRO_FONT_TYPE_DWRITE) { + status = _cairo_dwrite_scaled_font_create_win32_scaled_font (scaled_font, &local_scaled_font); + if (status == CAIRO_STATUS_SUCCESS) { + scaled_font = local_scaled_font; + } else { + /* Reset status; we'll fall back to drawing glyphs as paths */ + status = CAIRO_STATUS_SUCCESS; + } + } +#endif + +#if CAIRO_HAS_WIN32_FONT + if (cairo_scaled_font_get_type (scaled_font) == CAIRO_FONT_TYPE_WIN32 && + source->type == CAIRO_PATTERN_TYPE_SOLID) + { + status = _cairo_win32_printing_surface_emit_win32_glyphs (surface, + op, + source, + glyphs, + num_glyphs, + scaled_font, + clip); + goto cleanup_composite; + } +#endif + + SaveDC (surface->win32.dc); + old_ctm = surface->ctm; + old_has_ctm = surface->has_ctm; + surface->has_ctm = TRUE; + surface->path_empty = TRUE; + _cairo_scaled_font_freeze_cache (scaled_font); + BeginPath (surface->win32.dc); + for (i = 0; i < num_glyphs; i++) { + status = _cairo_scaled_glyph_lookup (scaled_font, + glyphs[i].index, + CAIRO_SCALED_GLYPH_INFO_PATH, + NULL, /* foreground color */ + &scaled_glyph); + if (status) + break; + surface->ctm = old_ctm; + cairo_matrix_translate (&surface->ctm, glyphs[i].x, glyphs[i].y); + status = _cairo_win32_printing_surface_emit_path (surface, scaled_glyph->path); + } + EndPath (surface->win32.dc); + _cairo_scaled_font_thaw_cache (scaled_font); + surface->ctm = old_ctm; + surface->has_ctm = old_has_ctm; + if (status == CAIRO_STATUS_SUCCESS && surface->path_empty == FALSE) { + if (source->type == CAIRO_PATTERN_TYPE_SOLID) { + status = _cairo_win32_printing_surface_select_solid_brush (surface, source); + if (unlikely (status)) + goto cleanup_composite; + + SetPolyFillMode (surface->win32.dc, WINDING); + FillPath (surface->win32.dc); + _cairo_win32_printing_surface_done_solid_brush (surface); + } else { + SelectClipPath (surface->win32.dc, RGN_AND); + status = _cairo_win32_printing_surface_paint_pattern (surface, source, &extents.bounded); + } + } + RestoreDC (surface->win32.dc, -1); + + if (opaque) + cairo_pattern_destroy (opaque); + +cleanup_composite: + _cairo_composite_rectangles_fini (&extents); + + if (local_scaled_font) + cairo_scaled_font_destroy (local_scaled_font); + + return status; +} + +static const char ** +_cairo_win32_printing_surface_get_supported_mime_types (void *abstract_surface) +{ + return _cairo_win32_printing_supported_mime_types; +} + +static cairo_status_t +_cairo_win32_printing_surface_finish (void *abstract_surface) +{ + cairo_win32_printing_surface_t *surface = abstract_surface; + + if (surface->font_subsets != NULL) + _cairo_scaled_font_subsets_destroy (surface->font_subsets); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_surface_t * +_cairo_win32_printing_surface_create_similar (void *abstract_surface, + cairo_content_t content, + int width, + int height) +{ + cairo_rectangle_t extents; + + extents.x = extents.y = 0; + extents.width = width; + extents.height = height; + return cairo_recording_surface_create (content, &extents); +} + +static cairo_int_status_t +_cairo_win32_printing_surface_start_page (void *abstract_surface) +{ + cairo_win32_printing_surface_t *surface = abstract_surface; + XFORM xform; + double x_res, y_res; + cairo_matrix_t inverse_ctm; + cairo_status_t status; + RECT rect; + + /* Since the page size may be changed after _show_page() and before the + * next drawing command, the extents are set in _start_page() and invalidated + * in _show_page(). The paginated surface will obtain the extents immediately + * after calling _show_page() and before any drawing commands. At this point + * the next page will not have been setup on the DC so we return invalid + * extents and the paginated surface will create an unbounded recording surface. + * Prior to replay of the record surface, the paginated surface will call + * _start_page and we setup the correct extents. + * + * Note that we always set the extents x,y to 0 so prevent replay from translating + * the coordinates of objects. Windows will clip anything outside of the page clip + * area. + */ + GetClipBox(surface->win32.dc, &rect); + surface->win32.extents.x = 0; + surface->win32.extents.y = 0; + surface->win32.extents.width = rect.right; + surface->win32.extents.height = rect.bottom; + surface->extents_valid = TRUE; + + SaveDC (surface->win32.dc); /* Save application context first, before doing MWT */ + + /* As the logical coordinates used by GDI functions (eg LineTo) + * are integers we need to do some additional work to prevent + * rounding errors. For example the obvious way to paint a recording + * pattern is to: + * + * SaveDC() + * transform the device context DC by the pattern to device matrix + * replay the recording surface + * RestoreDC() + * + * The problem here is that if the pattern to device matrix is + * [100 0 0 100 0 0], coordinates in the recording pattern such as + * (1.56, 2.23) which correspond to (156, 223) in device space + * will be rounded to (100, 200) due to (1.56, 2.23) being + * truncated to integers. + * + * This is solved by saving the current GDI CTM in surface->ctm, + * switch the GDI CTM to identity, and transforming all + * coordinates by surface->ctm before passing them to GDI. When + * painting a recording pattern, surface->ctm is transformed by the + * pattern to device matrix. + * + * For printing device contexts where 1 unit is 1 dpi, switching + * the GDI CTM to identity maximises the possible resolution of + * coordinates. + * + * If the device context is an EMF file, using an identity + * transform often provides insufficient resolution. The workaround + * is to set the GDI CTM to a scale < 1 eg [1.0/16 0 0 1/0/16 0 0] + * and scale the cairo CTM by [16 0 0 16 0 0]. The + * SetWorldTransform function call to scale the GDI CTM by 1.0/16 + * will be recorded in the EMF followed by all the graphics + * functions by their coordinateds multiplied by 16. + * + * To support allowing the user to set a GDI CTM with scale < 1, + * we avoid switching to an identity CTM if the CTM xx and yy is < 1. + */ + SetGraphicsMode (surface->win32.dc, GM_ADVANCED); + GetWorldTransform(surface->win32.dc, &xform); + if (xform.eM11 < 1 && xform.eM22 < 1) { + cairo_matrix_init_identity (&surface->ctm); + surface->gdi_ctm.xx = xform.eM11; + surface->gdi_ctm.xy = xform.eM21; + surface->gdi_ctm.yx = xform.eM12; + surface->gdi_ctm.yy = xform.eM22; + surface->gdi_ctm.x0 = xform.eDx; + surface->gdi_ctm.y0 = xform.eDy; + } else { + surface->ctm.xx = xform.eM11; + surface->ctm.xy = xform.eM21; + surface->ctm.yx = xform.eM12; + surface->ctm.yy = xform.eM22; + surface->ctm.x0 = xform.eDx; + surface->ctm.y0 = xform.eDy; + cairo_matrix_init_identity (&surface->gdi_ctm); + if (!ModifyWorldTransform (surface->win32.dc, NULL, MWT_IDENTITY)) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "ModifyWorldTransform"); + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); + } + } + + surface->has_ctm = !_cairo_matrix_is_identity (&surface->ctm); + surface->has_gdi_ctm = !_cairo_matrix_is_identity (&surface->gdi_ctm); + inverse_ctm = surface->ctm; + status = cairo_matrix_invert (&inverse_ctm); + if (status) + return status; + + x_res = GetDeviceCaps (surface->win32.dc, LOGPIXELSX); + y_res = GetDeviceCaps (surface->win32.dc, LOGPIXELSY); + cairo_matrix_transform_distance (&inverse_ctm, &x_res, &y_res); + _cairo_surface_set_resolution (&surface->win32.base, x_res, y_res); + + SaveDC (surface->win32.dc); /* Then save Cairo's known-good clip state, so the clip path can be reset */ + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +_cairo_win32_printing_surface_set_paginated_mode (void *abstract_surface, + cairo_paginated_mode_t paginated_mode) +{ + cairo_win32_printing_surface_t *surface = abstract_surface; + + surface->paginated_mode = paginated_mode; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_bool_t +_cairo_win32_printing_surface_supports_fine_grained_fallbacks (void *abstract_surface) +{ + return TRUE; +} + +/** + * cairo_win32_printing_surface_create: + * @hdc: the DC to create a surface for + * + * Creates a cairo surface that targets the given DC. The DC will be + * queried for its initial clip extents, and this will be used as the + * size of the cairo surface. The DC should be a printing DC; + * antialiasing will be ignored, and GDI will be used as much as + * possible to draw to the surface. + * + * The returned surface will be wrapped using the paginated surface to + * provide correct complex rendering behaviour; cairo_surface_show_page() and + * associated methods must be used for correct output. + * + * The following mime types are supported on source patterns: + * %CAIRO_MIME_TYPE_JPEG, %CAIRO_MIME_TYPE_PNG. + * + * Return value: the newly created surface + * + * Since: 1.6 + **/ +cairo_surface_t * +cairo_win32_printing_surface_create (HDC hdc) +{ + cairo_win32_printing_surface_t *surface; + cairo_surface_t *paginated; + + surface = _cairo_calloc (sizeof (cairo_win32_printing_surface_t)); + if (surface == NULL) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + +#if 0 + if (_cairo_win32_save_initial_clip (hdc, surface) != CAIRO_STATUS_SUCCESS) { + free (surface); + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } +#endif + + _cairo_surface_clipper_init (&surface->clipper, + _cairo_win32_printing_surface_clipper_intersect_clip_path); + + surface->win32.format = CAIRO_FORMAT_RGB24; + surface->content = CAIRO_CONTENT_COLOR_ALPHA; + + surface->win32.dc = hdc; + surface->extents_valid = FALSE; + + surface->brush = NULL; + surface->old_brush = NULL; + surface->font_subsets = _cairo_scaled_font_subsets_create_scaled (); + if (surface->font_subsets == NULL) { + free (surface); + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + + surface->win32.flags = _cairo_win32_flags_for_dc (surface->win32.dc, CAIRO_FORMAT_RGB24); + surface->win32.flags |= CAIRO_WIN32_SURFACE_FOR_PRINTING; + + _cairo_win32_printing_surface_init_ps_mode (surface); + _cairo_win32_printing_surface_init_image_support (surface); + _cairo_win32_printing_surface_init_language_pack (surface); + _cairo_surface_init (&surface->win32.base, + &cairo_win32_printing_surface_backend, + NULL, /* device */ + CAIRO_CONTENT_COLOR_ALPHA, + TRUE); /* is_vector */ + + paginated = _cairo_paginated_surface_create (&surface->win32.base, + CAIRO_CONTENT_COLOR_ALPHA, + &cairo_win32_surface_paginated_backend); + + /* paginated keeps the only reference to surface now, drop ours */ + cairo_surface_destroy (&surface->win32.base); + + return paginated; +} + +cairo_bool_t +_cairo_surface_is_win32_printing (const cairo_surface_t *surface) +{ + return surface->backend && surface->backend->type == CAIRO_SURFACE_TYPE_WIN32_PRINTING; +} + +static const cairo_surface_backend_t cairo_win32_printing_surface_backend = { + CAIRO_SURFACE_TYPE_WIN32_PRINTING, + _cairo_win32_printing_surface_finish, + + _cairo_default_context_create, + + _cairo_win32_printing_surface_create_similar, + NULL, /* create similar image */ + NULL, /* map to image */ + NULL, /* unmap image */ + + _cairo_surface_default_source, + NULL, /* acquire_source_image */ + NULL, /* release_source_image */ + NULL, /* snapshot */ + + NULL, /* copy_page */ + _cairo_win32_printing_surface_show_page, + + _cairo_win32_printing_surface_get_extents, + _cairo_win32_printing_surface_get_font_options, + + NULL, /* flush */ + NULL, /* mark_dirty_rectangle */ + + _cairo_win32_printing_surface_paint, + NULL, /* mask */ + _cairo_win32_printing_surface_stroke, + _cairo_win32_printing_surface_fill, + NULL, /* fill/stroke */ + _cairo_win32_printing_surface_show_glyphs, + NULL, /* has_show_text_glyphs */ + NULL, /* show_text_glyphs */ + _cairo_win32_printing_surface_get_supported_mime_types, +}; + +static const cairo_paginated_surface_backend_t cairo_win32_surface_paginated_backend = { + _cairo_win32_printing_surface_start_page, + _cairo_win32_printing_surface_set_paginated_mode, + NULL, /* set_bounding_box */ + NULL, /* _cairo_win32_printing_surface_has_fallback_images, */ + _cairo_win32_printing_surface_supports_fine_grained_fallbacks, +}; diff --git a/local/recipes/libs/cairo/source/src/win32/cairo-win32-private.h b/local/recipes/libs/cairo/source/src/win32/cairo-win32-private.h new file mode 100644 index 0000000000..a9eda8fdbe --- /dev/null +++ b/local/recipes/libs/cairo/source/src/win32/cairo-win32-private.h @@ -0,0 +1,258 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Owen Taylor + */ + +#ifndef CAIRO_WIN32_PRIVATE_H +#define CAIRO_WIN32_PRIVATE_H + +#include "cairo-win32.h" + +#include "cairoint.h" + +#include "cairo-device-private.h" +#include "cairo-surface-clipper-private.h" +#include "cairo-surface-private.h" + +#define WIN32_FONT_LOGICAL_SCALE 32 + +CAIRO_BEGIN_DECLS + +/* Surface DC flag values */ +enum { + /* If this is a surface created for printing or not */ + CAIRO_WIN32_SURFACE_FOR_PRINTING = (1<<0), + + /* Whether the DC is a display DC or not */ + CAIRO_WIN32_SURFACE_IS_DISPLAY = (1<<1), + + /* Whether we can use BitBlt with this surface */ + CAIRO_WIN32_SURFACE_CAN_BITBLT = (1<<2), + + /* Whether we can use AlphaBlend with this surface */ + CAIRO_WIN32_SURFACE_CAN_ALPHABLEND = (1<<3), + + /* Whether we can use StretchBlt with this surface */ + CAIRO_WIN32_SURFACE_CAN_STRETCHBLT = (1<<4), + + /* Whether we can use StretchDIBits with this surface */ + CAIRO_WIN32_SURFACE_CAN_STRETCHDIB = (1<<5), + + /* Whether we can use GradientFill rectangles with this surface */ + CAIRO_WIN32_SURFACE_CAN_RECT_GRADIENT = (1<<6), + + /* Whether we can use the CHECKJPEGFORMAT escape function */ + CAIRO_WIN32_SURFACE_CAN_CHECK_JPEG = (1<<7), + + /* Whether we can use the CHECKPNGFORMAT escape function */ + CAIRO_WIN32_SURFACE_CAN_CHECK_PNG = (1<<8), + + /* Whether we can use gdi drawing with solid rgb brush with this surface */ + CAIRO_WIN32_SURFACE_CAN_RGB_BRUSH = (1<<9), +}; + +typedef struct _cairo_win32_surface { + cairo_surface_t base; + + cairo_format_t format; + HDC dc; + + /* Surface DC flags */ + unsigned flags; + + /* We use the x and y parts of extents for situations where + * we're not supposed to draw to the entire surface. + * For example, during a paint event a program will get + * a DC that has been clipped to the dirty region. + * A cairo surface constructed for that DC will have extents + * that match bounds of the clipped region. + */ + cairo_rectangle_int_t extents; + + /* Offset added to extents, used when the extents start with a negative + * offset, which can occur on Windows for, and only for, desktop DC. This + * occurs when you have multiple monitors, and at least one monitor + * extends to the left, or above, the primaty monitor. The primary + * monitor on Windows always starts with offset (0,0), and any other points + * to the left, or above, have negative offsets. So the 'desktop DC' is + * in fact a 'virtual desktop' which can start with extents in the negative + * range. + * + * Why use new variables, and not the device transform? Simply because since + * the device transform functions are exposed, a lot of 3rd party libraries + * simply overwrite those, disregarding the prior content, instead of actually + * adding the offset. GTK for example simply resets the device transform of the + * desktop cairo surface to zero. So make some private member variables for + * this, which will not be fiddled with externally. + */ + int x_ofs, y_ofs; +} cairo_win32_surface_t; +#define to_win32_surface(S) ((cairo_win32_surface_t *)(S)) + +typedef struct _cairo_win32_display_surface { + cairo_win32_surface_t win32; + + /* We create off-screen surfaces as DIBs or DDBs, based on what we created + * originally */ + HBITMAP bitmap; + cairo_bool_t is_dib; + + /* Used to save the initial 1x1 monochrome bitmap for the DC to + * select back into the DC before deleting the DC and our + * bitmap. For Windows XP, this doesn't seem to be necessary + * ... we can just delete the DC and that automatically unselects + * our bitmap. But it's standard practice so apparently is needed + * on some versions of Windows. + */ + HBITMAP saved_dc_bitmap; + cairo_surface_t *image; + cairo_surface_t *fallback; + + HRGN initial_clip_rgn; + cairo_bool_t had_simple_clip; +} cairo_win32_display_surface_t; +#define to_win32_display_surface(S) ((cairo_win32_display_surface_t *)(S)) + +typedef struct _cairo_win32_printing_surface { + cairo_win32_surface_t win32; + + cairo_surface_clipper_t clipper; + + cairo_paginated_mode_t paginated_mode; + cairo_content_t content; + cairo_bool_t path_empty; + cairo_bool_t has_ctm; + cairo_matrix_t ctm; + cairo_bool_t has_gdi_ctm; + cairo_matrix_t gdi_ctm; + cairo_bool_t extents_valid; + HBRUSH brush, old_brush; + cairo_scaled_font_subsets_t *font_subsets; +} cairo_win32_printing_surface_t; +#define to_win32_printing_surface(S) ((cairo_win32_printing_surface_t *)(S)) + +typedef struct _cairo_win32_device { + cairo_device_t base; + + const cairo_compositor_t *compositor; +} cairo_win32_device_t; +#define to_win32_device(D) ((cairo_win32_device_t *)(D)) +#define to_win32_device_from_surface(S) to_win32_device(((cairo_surface_t *)(S))->device) + +cairo_private cairo_device_t * +_cairo_win32_device_get (void); + +const cairo_compositor_t * +_cairo_win32_gdi_compositor_get (void); + +cairo_status_t +_cairo_win32_print_api_error (const char *context, const char *api); + +cairo_bool_t +_cairo_surface_is_win32 (const cairo_surface_t *surface); + +cairo_bool_t +_cairo_surface_is_win32_printing (const cairo_surface_t *surface); + +cairo_private void +_cairo_win32_display_surface_discard_fallback (cairo_win32_display_surface_t *surface); + +cairo_bool_t +_cairo_win32_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle); + +uint32_t +_cairo_win32_flags_for_dc (HDC dc, cairo_format_t format); + +cairo_int_status_t +_cairo_win32_surface_emit_glyphs (cairo_win32_surface_t *dst, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + cairo_bool_t glyph_indexing); + +static inline void +_cairo_matrix_to_win32_xform (const cairo_matrix_t *m, + XFORM *xform) +{ + xform->eM11 = (FLOAT) m->xx; + xform->eM21 = (FLOAT) m->xy; + xform->eM12 = (FLOAT) m->yx; + xform->eM22 = (FLOAT) m->yy; + xform->eDx = (FLOAT) m->x0; + xform->eDy = (FLOAT) m->y0; +} + +cairo_status_t +_cairo_win32_display_surface_set_clip (cairo_win32_display_surface_t *surface, + cairo_clip_t *clip); + +void +_cairo_win32_display_surface_unset_clip (cairo_win32_display_surface_t *surface); + +void +_cairo_win32_debug_dump_hrgn (HRGN rgn, char *header); + +cairo_bool_t +_cairo_win32_scaled_font_is_type1 (cairo_scaled_font_t *scaled_font); + +cairo_bool_t +_cairo_win32_scaled_font_is_bitmap (cairo_scaled_font_t *scaled_font); + +cairo_public BYTE +cairo_win32_get_system_text_quality (void); + +HMODULE +_cairo_win32_load_library_from_system32 (const wchar_t *name); + +#if CAIRO_HAS_DWRITE_FONT + +cairo_int_status_t +_cairo_dwrite_show_glyphs_on_surface (void *surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + cairo_clip_t *clip); + +cairo_int_status_t +_cairo_dwrite_scaled_font_create_win32_scaled_font (cairo_scaled_font_t *scaled_font, + cairo_scaled_font_t **new_font); + +#endif /* CAIRO_HAS_DWRITE_FONT */ + +CAIRO_END_DECLS + +#endif /* CAIRO_WIN32_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/src/win32/cairo-win32-refptr.hpp b/local/recipes/libs/cairo/source/src/win32/cairo-win32-refptr.hpp new file mode 100644 index 0000000000..e361e4cf7f --- /dev/null +++ b/local/recipes/libs/cairo/source/src/win32/cairo-win32-refptr.hpp @@ -0,0 +1,178 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* Cairo - a vector graphics library with display and print output + * + * Copyright 2010 Mozilla Foundation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is the Mozilla Foundation + * + * Contributor(s): + * Bas Schouten + */ +#ifndef CAIRO_WIN32_REFPTR_H +#define CAIRO_WIN32_REFPTR_H + +template class TemporaryRef; + +/* + * RefPtr points to a refcounted thing that has AddRef and Release + * methods to increase/decrease the refcount, respectively. After a + * RefPtr is assigned a T*, the T* can be used through the RefPtr + * as if it were a T*. + * + * A RefPtr can forget its underlying T*, which results in the T* + * being wrapped in a temporary object until the T* is either + * re-adopted from or released by the temporary. + */ +template +class RefPtr +{ + // To allow them to use unref() + friend class TemporaryRef; + + struct dontRef {}; + +public: + RefPtr() : ptr(0) { } + RefPtr(const RefPtr& o) : ptr(ref(o.ptr)) {} + RefPtr(const TemporaryRef& o) : ptr(o.drop()) {} + RefPtr(T* t) : ptr(ref(t)) {} + + template + RefPtr(const RefPtr& o) : ptr(ref(o.get())) {} + + ~RefPtr() { unref(ptr); } + + RefPtr& operator=(const RefPtr& o) { + assign(ref(o.ptr)); + return *this; + } + RefPtr& operator=(const TemporaryRef& o) { + assign(o.drop()); + return *this; + } + RefPtr& operator=(T* t) { + assign(ref(t)); + return *this; + } + + template + RefPtr& operator=(const RefPtr& o) { + assign(ref(o.get())); + return *this; + } + + TemporaryRef forget() { + T* tmp = ptr; + ptr = 0; + return TemporaryRef(tmp, dontRef()); + } + + T* get() const { return ptr; } + operator T*() const { return ptr; } + T* operator->() const { return ptr; } + T& operator*() const { return *ptr; } + template + operator TemporaryRef() { return TemporaryRef(ptr); } + + /** + * WARNING for ease of use, passing a reference will release/clear out ptr! + * We null out the ptr before returning its address so people passing byref + * as input will most likely get functions returning errors rather than accessing + * freed memory. Further more accessing it after this point if it hasn't + * been set will produce a null pointer dereference. + */ + T** operator&() + { + if (ptr) { + ptr->Release(); + ptr = NULL; + } + return &ptr; + } + +private: + void assign(T* t) { + unref(ptr); + ptr = t; + } + + T* ptr; + + static inline T* ref(T* t) { + if (t) { + t->AddRef(); + } + return t; + } + + static inline void unref(T* t) { + if (t) { + t->Release(); + } + } +}; + +/* + * TemporaryRef represents an object that holds a temporary + * reference to a T. TemporaryRef objects can't be manually ref'd or + * unref'd (being temporaries, not lvalues), so can only relinquish + * references to other objects, or unref on destruction. + */ +template +class TemporaryRef +{ + // To allow it to construct TemporaryRef from a bare T* + friend class RefPtr; + + typedef typename RefPtr::dontRef dontRef; + +public: + TemporaryRef(T* t) : ptr(RefPtr::ref(t)) {} + TemporaryRef(const TemporaryRef& o) : ptr(o.drop()) {} + + template + TemporaryRef(const TemporaryRef& o) : ptr(o.drop()) {} + + ~TemporaryRef() { RefPtr::unref(ptr); } + + T* drop() const { + T* tmp = ptr; + ptr = 0; + return tmp; + } + +private: + TemporaryRef(T* t, const dontRef&) : ptr(t) {} + + mutable T* ptr; + + TemporaryRef(); + TemporaryRef& operator=(const TemporaryRef&); +}; + +#endif diff --git a/local/recipes/libs/cairo/source/src/win32/cairo-win32-surface.c b/local/recipes/libs/cairo/source/src/win32/cairo-win32-surface.c new file mode 100644 index 0000000000..e1ac515580 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/win32/cairo-win32-surface.c @@ -0,0 +1,301 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2012 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Owen Taylor + * Stuart Parmenter + * Vladimir Vukicevic + */ + +#include "cairoint.h" + +#include "cairo-backend-private.h" +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-paginated-private.h" +#include "cairo-pattern-private.h" +#include "cairo-win32-private.h" +#include "cairo-scaled-font-subsets-private.h" +#include "cairo-surface-fallback-private.h" +#include "cairo-surface-backend-private.h" + +#include +#include + +/** + * SECTION:cairo-win32 + * @Title: Win32 Surfaces + * @Short_Description: Microsoft Windows surface support + * @See_Also: #cairo_surface_t + * + * The Microsoft Windows surface is used to render cairo graphics to + * Microsoft Windows windows, bitmaps, and printing device contexts. + * + * The surface returned by cairo_win32_printing_surface_create() is of surface + * type %CAIRO_SURFACE_TYPE_WIN32_PRINTING and is a multi-page vector surface + * type. + * + * The surface returned by the other win32 constructors is of surface type + * %CAIRO_SURFACE_TYPE_WIN32 and is a raster surface type. + **/ + +/** + * CAIRO_HAS_WIN32_SURFACE: + * + * Defined if the Microsoft Windows surface backend is available. + * This macro can be used to conditionally compile backend-specific code. + * + * Since: 1.0 + **/ + +cairo_bool_t +_cairo_win32_surface_get_extents (void *abstract_surface, + cairo_rectangle_int_t *rectangle) +{ + cairo_win32_surface_t *surface = abstract_surface; + + *rectangle = surface->extents; + return TRUE; +} + +/** + * cairo_win32_surface_get_dc: + * @surface: a #cairo_surface_t + * + * Returns the HDC associated with this surface, or %NULL if none. + * Also returns %NULL if the surface is not a win32 surface. + * + * A call to cairo_surface_flush() is required before using the HDC to + * ensure that all pending drawing operations are finished and to + * restore any temporary modification cairo has made to its state. A + * call to cairo_surface_mark_dirty() is required after the state or + * the content of the HDC has been modified. + * + * Return value: HDC or %NULL if no HDC available. + * + * Since: 1.2 + **/ +HDC +cairo_win32_surface_get_dc (cairo_surface_t *surface) +{ + if (surface->backend == NULL) + return NULL; + + if (surface->backend->type == CAIRO_SURFACE_TYPE_WIN32) + return to_win32_surface(surface)->dc; + + if (_cairo_surface_is_paginated (surface)) { + cairo_surface_t *target = _cairo_paginated_surface_get_target (surface); + if (target->backend->type == CAIRO_SURFACE_TYPE_WIN32_PRINTING) + return to_win32_surface(target)->dc; + } + + return NULL; +} + +/** + * _cairo_surface_is_win32: + * @surface: a #cairo_surface_t + * + * Checks if a surface is an #cairo_win32_surface_t + * + * Return value: %TRUE if the surface is an win32 surface + **/ +cairo_bool_t +_cairo_surface_is_win32 (const cairo_surface_t *surface) +{ + /* _cairo_surface_nil sets a NULL backend so be safe */ + return surface->backend && surface->backend->type == CAIRO_SURFACE_TYPE_WIN32; +} + +/** + * cairo_win32_surface_get_image: + * @surface: a #cairo_surface_t + * + * Returns a #cairo_surface_t image surface that refers to the same bits + * as the DIB of the Win32 surface. If the passed-in win32 surface + * is not a DIB surface, %NULL is returned. + * + * Return value: a #cairo_surface_t (owned by the win32 #cairo_surface_t), + * or %NULL if the win32 surface is not a DIB. + * + * Since: 1.4 + **/ +cairo_surface_t * +cairo_win32_surface_get_image (cairo_surface_t *surface) +{ + + if (! _cairo_surface_is_win32 (surface)) { + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); + } + + GdiFlush(); + return to_win32_display_surface(surface)->image; +} + +#define STACK_GLYPH_SIZE 256 +cairo_int_status_t +_cairo_win32_surface_emit_glyphs (cairo_win32_surface_t *dst, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + cairo_bool_t glyph_indexing) +{ +#if CAIRO_HAS_DWRITE_FONT + if (scaled_font->backend->type == CAIRO_FONT_TYPE_DWRITE) { + if (!glyph_indexing) return CAIRO_INT_STATUS_UNSUPPORTED; + + // FIXME: fake values for params that aren't currently passed in here + cairo_operator_t op = CAIRO_OPERATOR_SOURCE; + cairo_clip_t *clip = NULL; + return _cairo_dwrite_show_glyphs_on_surface (dst, op, source, glyphs, num_glyphs, scaled_font, clip /* , glyph_indexing */ ); + } +#endif +#if CAIRO_HAS_WIN32_FONT + WORD glyph_buf_stack[STACK_GLYPH_SIZE]; + WORD *glyph_buf = glyph_buf_stack; + int dxy_buf_stack[2 * STACK_GLYPH_SIZE]; + int *dxy_buf = dxy_buf_stack; + + BOOL win_result = 0; + int i, j; + + cairo_solid_pattern_t *solid_pattern; + COLORREF color; + + cairo_matrix_t device_to_logical; + + int start_x, start_y; + double user_x, user_y; + int logical_x, logical_y; + unsigned int glyph_index_option; + + /* We can only handle win32 fonts */ + assert (cairo_scaled_font_get_type (scaled_font) == CAIRO_FONT_TYPE_WIN32); + + /* We can only handle opaque solid color sources and destinations */ + assert (_cairo_pattern_is_opaque_solid(source)); + assert (dst->format == CAIRO_FORMAT_RGB24); + + solid_pattern = (cairo_solid_pattern_t *)source; + color = RGB(((int)solid_pattern->color.red_short) >> 8, + ((int)solid_pattern->color.green_short) >> 8, + ((int)solid_pattern->color.blue_short) >> 8); + + cairo_win32_scaled_font_get_device_to_logical(scaled_font, &device_to_logical); + + SaveDC(dst->dc); + + cairo_win32_scaled_font_select_font(scaled_font, dst->dc); + SetTextColor(dst->dc, color); + SetTextAlign(dst->dc, TA_BASELINE | TA_LEFT); + SetBkMode(dst->dc, TRANSPARENT); + + if (num_glyphs > STACK_GLYPH_SIZE) { + glyph_buf = (WORD *) _cairo_malloc_ab (num_glyphs, sizeof(WORD)); + dxy_buf = (int *) _cairo_malloc_abc (num_glyphs, sizeof(int), 2); + } + + /* It is vital that dx values for dxy_buf are calculated from the delta of + * _logical_ x coordinates (not user x coordinates) or else the sum of all + * previous dx values may start to diverge from the current glyph's x + * coordinate due to accumulated rounding error. As a result strings could + * be painted shorter or longer than expected. */ + + user_x = glyphs[0].x; + user_y = glyphs[0].y; + + cairo_matrix_transform_point(&device_to_logical, + &user_x, &user_y); + + logical_x = _cairo_lround (user_x); + logical_y = _cairo_lround (user_y); + + start_x = logical_x; + start_y = logical_y; + + for (i = 0, j = 0; i < num_glyphs; ++i, j = 2 * i) { + glyph_buf[i] = (WORD) glyphs[i].index; + if (i == num_glyphs - 1) { + dxy_buf[j] = 0; + dxy_buf[j+1] = 0; + } else { + double next_user_x = glyphs[i+1].x; + double next_user_y = glyphs[i+1].y; + int next_logical_x, next_logical_y; + + cairo_matrix_transform_point(&device_to_logical, + &next_user_x, &next_user_y); + + next_logical_x = _cairo_lround (next_user_x); + next_logical_y = _cairo_lround (next_user_y); + + dxy_buf[j] = _cairo_lround (next_logical_x - logical_x); + dxy_buf[j+1] = _cairo_lround (next_logical_y - logical_y); + + logical_x = next_logical_x; + logical_y = next_logical_y; + } + } + + if (glyph_indexing) + glyph_index_option = ETO_GLYPH_INDEX; + else + glyph_index_option = 0; + + win_result = ExtTextOutW(dst->dc, + start_x, + start_y, + glyph_index_option | ETO_PDY, + NULL, + glyph_buf, + num_glyphs, + dxy_buf); + if (!win_result) { + fprintf (stderr, "%s:%s\n", __FUNCTION__, "ExtTextOut"); + } + + RestoreDC(dst->dc, -1); + + if (glyph_buf != glyph_buf_stack) { + free(glyph_buf); + free(dxy_buf); + } + return (win_result) ? CAIRO_STATUS_SUCCESS : CAIRO_INT_STATUS_UNSUPPORTED; +#else + return CAIRO_INT_STATUS_UNSUPPORTED; +#endif +} +#undef STACK_GLYPH_SIZE diff --git a/local/recipes/libs/cairo/source/src/win32/cairo-win32-system.c b/local/recipes/libs/cairo/source/src/win32/cairo-win32-system.c new file mode 100644 index 0000000000..c5ef24e8d4 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/win32/cairo-win32-system.c @@ -0,0 +1,172 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Owen Taylor + * Stuart Parmenter + * Vladimir Vukicevic + */ + +/* This file should include code that is system-specific, not + * feature-specific. For example, the DLL initialization/finalization + * code on Win32 or OS/2 must live here (not in cairo-whatever-surface.c). + * Same about possible ELF-specific code. + * + * And no other function should live here. + */ + +#include "cairoint.h" + +#include + +/** + * _cairo_win32_print_api_error: + * @context: context string to display along with the error + * @api: name of the failing api + * + * Helper function to dump out a human readable form of the + * current error code. + * + * Return value: A cairo status code for the error code + **/ +cairo_status_t +_cairo_win32_print_api_error (const char *context, const char *api) +{ + const DWORD lang_id = MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT); + const DWORD flags = FORMAT_MESSAGE_ALLOCATE_BUFFER | + FORMAT_MESSAGE_IGNORE_INSERTS | + FORMAT_MESSAGE_FROM_SYSTEM; + const DWORD last_error = GetLastError (); + void *lpMsgBuf = NULL; + + if (!FormatMessageW (flags, NULL, last_error, lang_id, (LPWSTR) &lpMsgBuf, 0, NULL)) { + fprintf (stderr, "%s: %s failed with error code %lu\n", context, api, last_error); + } + else { + fprintf (stderr, "%s: %s failed - %S\n", context, api, (wchar_t *)lpMsgBuf); + LocalFree (lpMsgBuf); + } + + return _cairo_error (CAIRO_STATUS_WIN32_GDI_ERROR); +} + +/** + * _cairo_win32_load_library_from_system32: + * @name: name of the module to load from System32 + * + * Helper function to load system modules in the System32 + * folder. + * + * Return value: An module HANDLE, NULL on error. + **/ +HMODULE +_cairo_win32_load_library_from_system32 (const wchar_t *name) +{ + HMODULE module_handle; + + module_handle = LoadLibraryExW (name, NULL, LOAD_LIBRARY_SEARCH_SYSTEM32); + if (module_handle == NULL) { + DWORD code = GetLastError(); + if (code == ERROR_INVALID_PARAMETER) { + /* Support for flag LOAD_LIBRARY_SEARCH_SYSTEM32 was backported + * to Windows Vista / 7 with Update KB2533623. If the flag is + * not supported, simply use LoadLibrary */ + return LoadLibraryW (name); + } + } + + return module_handle; +} + +#if CAIRO_MUTEX_IMPL_WIN32 + +static void NTAPI +cairo_win32_tls_callback (PVOID hinstance, DWORD dwReason, PVOID lpvReserved) +{ + switch (dwReason) { + case DLL_PROCESS_ATTACH: + CAIRO_MUTEX_INITIALIZE (); + break; + + case DLL_PROCESS_DETACH: + if (lpvReserved == NULL) { + CAIRO_MUTEX_FINALIZE (); + } + break; + } +} + +#ifdef _MSC_VER + +#ifdef _M_IX86 +# define SYMBOL_PREFIX "_" +#else +# define SYMBOL_PREFIX "" +#endif + +#ifdef __cplusplus +# define EXTERN_C_BEGIN extern "C" { +# define EXTERN_C_END } +# define EXTERN_CONST extern const +#else +# define EXTERN_C_BEGIN +# define EXTERN_C_END +# define EXTERN_CONST const +#endif + +#define DEFINE_TLS_CALLBACK(func) \ +__pragma (section (".CRT$XLD", long, read)) \ + \ +static void NTAPI func (PVOID, DWORD, PVOID); \ + \ +EXTERN_C_BEGIN \ +__declspec (allocate (".CRT$XLD")) \ +EXTERN_CONST PIMAGE_TLS_CALLBACK _ptr_##func = func; \ +EXTERN_C_END \ + \ +__pragma (comment (linker, "/INCLUDE:" SYMBOL_PREFIX "_tls_used")) \ +__pragma (comment (linker, "/INCLUDE:" SYMBOL_PREFIX "_ptr_" #func)) + +#else /* _MSC_VER */ + +#define DEFINE_TLS_CALLBACK(func) \ +static void NTAPI func (PVOID, DWORD, PVOID); \ + \ +__attribute__ ((used, section (".CRT$XLD"))) \ +static const PIMAGE_TLS_CALLBACK _ptr_##func = func; + + +#endif /* !_MSC_VER */ + +DEFINE_TLS_CALLBACK (cairo_win32_tls_callback); + +#endif /* CAIRO_MUTEX_IMPL_WIN32 */ diff --git a/local/recipes/libs/cairo/source/src/win32/d2d1-extra.h b/local/recipes/libs/cairo/source/src/win32/d2d1-extra.h new file mode 100644 index 0000000000..16099d8346 --- /dev/null +++ b/local/recipes/libs/cairo/source/src/win32/d2d1-extra.h @@ -0,0 +1,111 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ + +/* Mingw-w64 does not have d2d1_2.h and d2d2_3.h. + * + * + * We only need the definitions of two functions: + * ID2D1DeviceContext4::DrawColorBitmapGlyphRun() + * ID2D1DeviceContext4::DrawSvgGlyphRun() + * + * But we need to include all the prior functions in the same struct, + * and parent structs, so that the functions are in the correct position + * in the vtable. The parameters of the unused functions are not + * required as we only need a function in the struct to create a + * function pointer in the vtable. + */ + +#ifndef D2D1_EXTRA_H +#define D2D1_EXTRA_H + +#include + +interface ID2D1DeviceContext1; +interface ID2D1DeviceContext2; +interface ID2D1DeviceContext3; +interface ID2D1DeviceContext4; +interface ID2D1SvgGlyphStyle; + +enum D2D1_COLOR_BITMAP_GLYPH_SNAP_OPTION { + D2D1_COLOR_BITMAP_GLYPH_SNAP_OPTION_DEFAULT, + D2D1_COLOR_BITMAP_GLYPH_SNAP_OPTION_DISABLE, + D2D1_COLOR_BITMAP_GLYPH_SNAP_OPTION_FORCE_DWORD +}; + +DEFINE_GUID(IID_ID2D1DeviceContext1, 0xd37f57e4, 0x6908, 0x459f, 0xa1, 0x99, 0xe7, 0x2f, 0x24, 0xf7, 0x99, 0x87); +MIDL_INTERFACE("d37f57e4-6908-459f-a199-e72f24f79987") +ID2D1DeviceContext1 : public ID2D1DeviceContext +{ + virtual void STDMETHODCALLTYPE CreateFilledGeometryRealization() = 0; + virtual void STDMETHODCALLTYPE CreateStrokedGeometryRealization() = 0; + virtual void STDMETHODCALLTYPE DrawGeometryRealization() = 0; +}; +__CRT_UUID_DECL(ID2D1DeviceContext1, 0xd37f57e4, 0x6908, 0x459f, 0xa1, 0x99, 0xe7, 0x2f, 0x24, 0xf7, 0x99, 0x87) + +DEFINE_GUID(IID_ID2D1DeviceContext2, 0x394ea6a3, 0x0c34, 0x4321, 0x95, 0x0b, 0x6c, 0xa2, 0x0f, 0x0b, 0xe6, 0xc7); +MIDL_INTERFACE("394ea6a3-0c34-4321-950b-6ca20f0be6c7") +ID2D1DeviceContext2 : public ID2D1DeviceContext1 +{ + virtual void STDMETHODCALLTYPE CreateInk() = 0; + virtual void STDMETHODCALLTYPE CreateInkStyle() = 0; + virtual void STDMETHODCALLTYPE CreateGradientMesh() = 0; + virtual void STDMETHODCALLTYPE CreateImageSourceFromWic() = 0; + virtual void STDMETHODCALLTYPE CreateLookupTable3D() = 0; + virtual void STDMETHODCALLTYPE CreateImageSourceFromDxgi() = 0; + virtual void STDMETHODCALLTYPE GetGradientMeshWorldBounds() = 0; + virtual void STDMETHODCALLTYPE DrawInk() = 0; + virtual void STDMETHODCALLTYPE DrawGradientMesh() = 0; + virtual void STDMETHODCALLTYPE DrawGdiMetafile() = 0; + virtual void STDMETHODCALLTYPE CreateTransformedImageSource() = 0; +}; +__CRT_UUID_DECL(ID2D1DeviceContext2, 0x394ea6a3, 0x0c34, 0x4321, 0x95, 0x0b, 0x6c, 0xa2, 0x0f, 0x0b, 0xe6, 0xc7) + + +DEFINE_GUID(IID_ID2D1DeviceContext3, 0x235a7496, 0x8351, 0x414c, 0xbc, 0xd4, 0x66, 0x72, 0xab, 0x2d, 0x8e, 0x00); +MIDL_INTERFACE("235a7496-8351-414c-bcd4-6672ab2d8e00") +ID2D1DeviceContext3 : public ID2D1DeviceContext2 +{ + virtual void STDMETHODCALLTYPE CreateSpriteBatch() = 0; + virtual void STDMETHODCALLTYPE DrawSpriteBatch() = 0; +}; +__CRT_UUID_DECL(ID2D1DeviceContext3, 0x235a7496, 0x8351, 0x414c, 0xbc, 0xd4, 0x66, 0x72, 0xab, 0x2d, 0x8e, 0x00) + + +DEFINE_GUID(IID_ID2D1SvgGlyphStyle, 0xaf671749, 0xd241, 0x4db8, 0x8e, 0x41, 0xdc, 0xc2, 0xe5, 0xc1, 0xa4, 0x38); +MIDL_INTERFACE("af671749-d241-4db8-8e41-dcc2e5c1a438") +ID2D1SvgGlyphStyle : public ID2D1Resource +{ + virtual void STDMETHODCALLTYPE SetFill() = 0; + virtual void STDMETHODCALLTYPE GetFill() = 0; + virtual void STDMETHODCALLTYPE SetStroke() = 0; + virtual void STDMETHODCALLTYPE GetStrokeDashesCount() = 0; + virtual void STDMETHODCALLTYPE GetStroke() = 0; +}; +__CRT_UUID_DECL(ID2D1SvgGlyphStyle, 0xaf671749, 0xd241, 0x4db8, 0x8e, 0x41, 0xdc, 0xc2, 0xe5, 0xc1, 0xa4, 0x38) + + +DEFINE_GUID(IID_ID2D1DeviceContext4, 0x8c427831, 0x3d90, 0x4476, 0xb6, 0x47, 0xc4, 0xfa, 0xe3, 0x49, 0xe4, 0xdb); +MIDL_INTERFACE("8c427831-3d90-4476-b647-c4fae349e4db") +ID2D1DeviceContext4 : public ID2D1DeviceContext3 +{ + virtual void STDMETHODCALLTYPE CreateSvgGlyphStyle() = 0; + virtual void STDMETHODCALLTYPE DrawText() = 0; + virtual void STDMETHODCALLTYPE DrawTextLayout() = 0; + virtual void STDMETHODCALLTYPE DrawColorBitmapGlyphRun( + DWRITE_GLYPH_IMAGE_FORMATS glyphImageFormat, + D2D1_POINT_2F baselineOrigin, + const DWRITE_GLYPH_RUN *glyphRun, + DWRITE_MEASURING_MODE measuringMode, + D2D1_COLOR_BITMAP_GLYPH_SNAP_OPTION bitmapSnapOption) = 0; + + virtual void STDMETHODCALLTYPE DrawSvgGlyphRun( + D2D1_POINT_2F baselineOrigin, + const DWRITE_GLYPH_RUN *glyphRun, + ID2D1Brush *defaultFillBrush, + ID2D1SvgGlyphStyle *svgGlyphStyle, + UINT32 colorPaletteIndex, + DWRITE_MEASURING_MODE measuringMode) = 0; + +}; +__CRT_UUID_DECL(ID2D1DeviceContext4, 0x8c427831, 0x3d90, 0x4476, 0xb6, 0x47, 0xc4, 0xfa, 0xe3, 0x49, 0xe4, 0xdb) + +#endif diff --git a/local/recipes/libs/cairo/source/src/win32/dw-extra.h b/local/recipes/libs/cairo/source/src/win32/dw-extra.h new file mode 100644 index 0000000000..a9daced21b --- /dev/null +++ b/local/recipes/libs/cairo/source/src/win32/dw-extra.h @@ -0,0 +1,30 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ + +/* MinGW workarounds + * + * It doesn't define operators for DWRITE_GLYPH_IMAGE_FORMATS. + * The DWRITE_COLOR_GLYPH_RUN struct isn't valid. + * + */ + +#ifndef DWRITE_EXTRA_H +#define DWRITE_EXTRA_H + +#if defined(__MINGW64_VERSION_MAJOR) && __MINGW64_VERSION_MAJOR < 10 + +typedef struct DWRITE_COLOR_GLYPH_RUN1_WORKAROUND DWRITE_COLOR_GLYPH_RUN1_WORKAROUND; +struct DWRITE_COLOR_GLYPH_RUN1_WORKAROUND : DWRITE_COLOR_GLYPH_RUN +{ + DWRITE_GLYPH_IMAGE_FORMATS glyphImageFormat; + DWRITE_MEASURING_MODE measuringMode; +}; + +#else +typedef DWRITE_COLOR_GLYPH_RUN1 DWRITE_COLOR_GLYPH_RUN1_WORKAROUND; +#endif + +#if !defined(__MINGW64_VERSION_MAJOR) || __MINGW64_VERSION_MAJOR < 11 +DEFINE_ENUM_FLAG_OPERATORS(DWRITE_GLYPH_IMAGE_FORMATS); +#endif + +#endif /* DWRITE_EXTRA_H */ diff --git a/local/recipes/libs/cairo/source/subprojects/.gitignore b/local/recipes/libs/cairo/source/subprojects/.gitignore new file mode 100644 index 0000000000..cd557edb70 --- /dev/null +++ b/local/recipes/libs/cairo/source/subprojects/.gitignore @@ -0,0 +1,11 @@ +/expat-*/ +/freetype2 +/glib +/gperf +/fontconfig +/libffi +/proxy-libintl +/zlib-* +/packagecache +/pixman +/libpng* diff --git a/local/recipes/libs/cairo/source/subprojects/expat.wrap b/local/recipes/libs/cairo/source/subprojects/expat.wrap new file mode 100644 index 0000000000..36be273c6e --- /dev/null +++ b/local/recipes/libs/cairo/source/subprojects/expat.wrap @@ -0,0 +1,13 @@ +[wrap-file] +directory = expat-2.6.0 +source_url = https://github.com/libexpat/libexpat/releases/download/R_2_6_0/expat-2.6.0.tar.xz +source_filename = expat-2.6.0.tar.bz2 +source_hash = cb5f5a8ea211e1cabd59be0a933a52e3c02cc326e86a4d387d8d218e7ee47a3e +patch_filename = expat_2.6.0-1_patch.zip +patch_url = https://wrapdb.mesonbuild.com/v2/expat_2.6.0-1/get_patch +patch_hash = 7452665b0cf413f87fae1dc4d5c779bc2c8f0ccf3ba637140c9d46eacf521604 +source_fallback_url = https://github.com/mesonbuild/wrapdb/releases/download/expat_2.6.0-1/expat-2.6.0.tar.bz2 +wrapdb_version = 2.6.0-1 + +[provide] +expat = expat_dep diff --git a/local/recipes/libs/cairo/source/subprojects/fontconfig.wrap b/local/recipes/libs/cairo/source/subprojects/fontconfig.wrap new file mode 100644 index 0000000000..7dc4168117 --- /dev/null +++ b/local/recipes/libs/cairo/source/subprojects/fontconfig.wrap @@ -0,0 +1,10 @@ +[wrap-file] +directory = fontconfig-2.14.2 +source_url = https://www.freedesktop.org/software/fontconfig/release/fontconfig-2.14.2.tar.xz +source_filename = fontconfig-2.14.2.tar.xz +source_hash = dba695b57bce15023d2ceedef82062c2b925e51f5d4cc4aef736cf13f60a468b +source_fallback_url = https://github.com/mesonbuild/wrapdb/releases/download/fontconfig_2.14.2-1/fontconfig-2.14.2.tar.xz +wrapdb_version = 2.14.2-1 + +[provide] +fontconfig = fontconfig_dep diff --git a/local/recipes/libs/cairo/source/subprojects/freetype2.wrap b/local/recipes/libs/cairo/source/subprojects/freetype2.wrap new file mode 100644 index 0000000000..e3554c9a12 --- /dev/null +++ b/local/recipes/libs/cairo/source/subprojects/freetype2.wrap @@ -0,0 +1,11 @@ +[wrap-file] +directory = freetype-2.13.2 +source_url = https://download.savannah.gnu.org/releases/freetype/freetype-2.13.2.tar.xz +source_fallback_url = https://github.com/mesonbuild/wrapdb/releases/download/freetype2_2.13.2-1/freetype-2.13.2.tar.xz +source_filename = freetype-2.13.2.tar.xz +source_hash = 12991c4e55c506dd7f9b765933e62fd2be2e06d421505d7950a132e4f1bb484d +wrapdb_version = 2.13.2-1 + +[provide] +freetype2 = freetype_dep +freetype = freetype_dep diff --git a/local/recipes/libs/cairo/source/subprojects/glib.wrap b/local/recipes/libs/cairo/source/subprojects/glib.wrap new file mode 100644 index 0000000000..51d9cf8d47 --- /dev/null +++ b/local/recipes/libs/cairo/source/subprojects/glib.wrap @@ -0,0 +1,10 @@ +[wrap-file] +directory = glib-2.74.0 +source_url = https://download.gnome.org/sources/glib/2.74/glib-2.74.0.tar.xz +source_filename = glib-2.74.0.tar.xz +source_hash = 3652c7f072d7b031a6b5edd623f77ebc5dcd2ae698598abcc89ff39ca75add30 +wrapdb_version = 2.74.0-1 + +[provide] +dependency_names = gthread-2.0, gobject-2.0, gmodule-no-export-2.0, gmodule-export-2.0, gmodule-2.0, glib-2.0, gio-2.0, gio-windows-2.0, gio-unix-2.0 +program_names = glib-genmarshal, glib-mkenums, glib-compile-schemas, glib-compile-resources, gio-querymodules, gdbus-codegen diff --git a/local/recipes/libs/cairo/source/subprojects/pixman.wrap b/local/recipes/libs/cairo/source/subprojects/pixman.wrap new file mode 100644 index 0000000000..6ce238b84d --- /dev/null +++ b/local/recipes/libs/cairo/source/subprojects/pixman.wrap @@ -0,0 +1,10 @@ +[wrap-file] +directory = pixman-0.43.4 +source_url = https://www.cairographics.org/releases/pixman-0.43.4.tar.gz +source_filename = pixman-0.43.4.tar.gz +source_hash = a0624db90180c7ddb79fc7a9151093dc37c646d8c38d3f232f767cf64b85a226 +source_fallback_url = https://github.com/mesonbuild/wrapdb/releases/download/pixman_0.43.4-1/pixman-0.43.4.tar.gz +wrapdb_version = 0.43.4-1 + +[provide] +pixman-1 = idep_pixman diff --git a/local/recipes/libs/cairo/source/subprojects/zlib.wrap b/local/recipes/libs/cairo/source/subprojects/zlib.wrap new file mode 100644 index 0000000000..aa14de1774 --- /dev/null +++ b/local/recipes/libs/cairo/source/subprojects/zlib.wrap @@ -0,0 +1,13 @@ +[wrap-file] +directory = zlib-1.3.1 +source_url = http://zlib.net/fossils/zlib-1.3.1.tar.gz +source_fallback_url = https://github.com/mesonbuild/wrapdb/releases/download/zlib_1.3.1-1/zlib-1.3.1.tar.gz +source_filename = zlib-1.3.1.tar.gz +source_hash = 9a93b2b7dfdac77ceba5a558a580e74667dd6fede4585b91eefb60f03b72df23 +patch_filename = zlib_1.3.1-1_patch.zip +patch_url = https://wrapdb.mesonbuild.com/v2/zlib_1.3.1-1/get_patch +patch_hash = e79b98eb24a75392009cec6f99ca5cdca9881ff20bfa174e8b8926d5c7a47095 +wrapdb_version = 1.3.1-1 + +[provide] +zlib = zlib_dep diff --git a/local/recipes/libs/cairo/source/test/.gitignore b/local/recipes/libs/cairo/source/test/.gitignore new file mode 100644 index 0000000000..5ffeedc288 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/.gitignore @@ -0,0 +1,38 @@ +TAGS +tags +.deps +.libs +output +Makefile +Makefile.in +ref.hash +ref.list +any2ppm +.any2ppm +.any2ppm.pid +.any2ppm.errors +cairo-test-constructors.c +cairo-test-trace +cairo-test-suite +pdf2png +ps2png +svg2png +callgrind.out.* +valgrind-log +*.manifest +*.gcda +*.gcno +*.exe +*.exe.so +*.obj +*.ilk +*.pdb +*.la +*.lo +*.log +*.suo +*.trs +*.o +*~ +.*.sw? +make-cairo-test-constructors diff --git a/local/recipes/libs/cairo/source/test/.valgrind-suppressions b/local/recipes/libs/cairo/source/test/.valgrind-suppressions new file mode 100644 index 0000000000..f481a2f007 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/.valgrind-suppressions @@ -0,0 +1,577 @@ +{ + in dl.so + Memcheck:Cond + fun:_dl_relocate_object + } +{ + bugs in libpng/libz + Memcheck:Cond + obj:/usr/lib/libz.so.1.2.2.2 + obj:/usr/lib/libz.so.1.2.2.2 + fun:deflate + } +{ + bugs in libpng/libz + Memcheck:Cond + obj:/usr/lib/libz.so.1.2.3 + obj:/usr/lib/libz.so.1.2.3 + fun:deflate + } +{ + bugs in libpng/libz + Memcheck:Cond + obj:/usr/lib/libz.so.1.2.3.3 + } +{ + bugs in libpng/libz + Memcheck:Value8 + obj:/usr/lib/libz.so.1.2.3.3 + } +{ + cairo's write_png triggers apparent bugs in libpng/libz + Memcheck:Cond + obj:/usr/lib/libz.so.1.2.2.2 + obj:/usr/lib/libz.so.1.2.2.2 + fun:deflate + fun:png_write_finish_row + fun:png_write_filtered_row + fun:png_write_find_filter + fun:png_write_row + fun:png_write_image + fun:write_png + } +{ + cairo's write_png_argb32 triggers apparent bugs in libpng/libz + Memcheck:Cond + obj:/usr/lib/libz.so.1.2.3 + obj:/usr/lib/libz.so.1.2.3 + fun:deflate + obj:/usr/lib/libpng12.so.0.1.2.8 + obj:/usr/lib/libpng12.so.0.1.2.8 + obj:/usr/lib/libpng12.so.0.1.2.8 + fun:png_write_row + fun:png_write_image + fun:write_png +} +{ + cairo's write_png_argb32 triggers apparent bugs in libpng/libz + Memcheck:Cond + obj:/usr/lib/libz.so.1.2.2.2 + obj:/usr/lib/libz.so.1.2.2.2 + fun:deflate + fun:png_write_finish_row + fun:png_write_filtered_row + fun:png_write_find_filter + fun:png_write_row + fun:png_write_image + fun:write_png_argb32 + } +{ + cairo's _cairo_pdf_surface_paint triggers apparent bugs in libz + Memcheck:Cond + obj:/usr/lib/libz.so.1.2.3 + obj:/usr/lib/libz.so.1.2.3 + fun:deflate + fun:compress2 + fun:compress + fun:compress_dup + fun:emit_image + fun:emit_surface_pattern + fun:emit_pattern + fun:_cairo_pdf_surface_paint +} +{ + cairo's _cairo_pdf_surface_paint triggers apparent bugs in libz + Memcheck:Cond + obj:/usr/lib/libz.so.1.2.3 + obj:/usr/lib/libz.so.1.2.3 + fun:deflate + fun:compress2 + fun:compress + fun:compress_dup + fun:emit_pattern + fun:_cairo_pdf_surface_paint +} +{ + cairo's _cairo_pdf_surface_paint triggers apparent bugs in libz + Memcheck:Cond + fun:deflate_slow + fun:deflate +} +{ + cairo's _cairo_pdf_surface_paint triggers apparent bugs in libz + Memcheck:Value4 + fun:deflate_slow + fun:deflate +} +{ + cairo's _cairo_pdf_surface_paint triggers apparent bugs in libz + Memcheck:Value4 + fun:compress_block + fun:_tr_flush_block + fun:deflate_slow + fun:deflate +} +{ + cairo's _cairo_pdf_surface_paint triggers apparent bugs in libz + Memcheck:Value4 + fun:crc32 + obj:/usr/lib/libpng12.so.0.15.0 + fun:png_write_chunk_data + fun:png_write_chunk +} +{ + cairo's _cairo_pdf_surface_paint triggers apparent bugs in libz + Memcheck:Value4 + fun:base64_write_func + fun:stream_write_func + obj:/usr/lib/libpng12.so.0.15.0 + fun:png_write_chunk_data + fun:png_write_chunk +} +{ + pthread initialization strstr bug + Memcheck:Cond + fun:strstr + fun:__pthread_initialize_minimal + obj:/lib/libpthread-2.3.5.so + obj:/lib/libpthread-2.3.5.so + fun:call_init + fun:_dl_init + obj:/lib/ld-2.3.5.so +} +{ + Pixman reads padding bytes that are never initialized + Memcheck:Cond + fun:fbBltOne + fun:fbCompositeSolidMask_nx1xn + fun:_cairo_pixman_composite + fun:_cairo_image_surface_composite + fun:_cairo_surface_composite + fun:_cairo_ft_scaled_font_show_glyphs + fun:_cairo_scaled_font_show_glyphs + fun:_cairo_gstate_show_glyphs_draw_func + fun:_cairo_gstate_clip_and_composite + fun:_cairo_gstate_show_glyphs + fun:cairo_show_text + fun:draw +} +{ + XXX: I have no idea what might be causing this + Memcheck:Free + fun:free + fun:free_mem + fun:__libc_freeres + fun:_vgw_freeres + fun:exit + fun:__libc_start_main +} +{ + XrmGetStringDatabase is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcAddCT + fun:_XlcInitCTInfo + fun:initialize + fun:initialize + fun:_XlcCreateLC + fun:_XlcUtf8Loader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase + fun:XrmGetStringDatabase +} +{ + XrmGetStringDatabase is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:PutEntry + fun:GetDatabase + fun:XrmGetStringDatabase +} +{ + XrmGetStringDatabase is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:initialize + fun:_XlcCreateLC + fun:_XlcDefaultLoader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase + fun:XrmGetStringDatabase +} +{ + XrmGetStringDatabase is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:add_codeset + fun:initialize + fun:_XlcCreateLC + fun:_XlcDefaultLoader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase + fun:XrmGetStringDatabase +} +{ + XrmInitialize is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XrmInternalStringToQuark +} +{ + XrmInitialize is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + obj:/usr/lib/libX11.so.6.2.0 + fun:_XrmInternalStringToQuark + fun:XrmInitialize +} +{ + XrmInitialize is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:permalloc + fun:_XrmInternalStringToQuark +} +{ + XrmGetStringDatabase is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcSetConverter + fun:_XlcDefaultLoader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase + fun:XrmGetStringDatabase +} +{ + XrmGetStringDatabase is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcCreateDefaultCharSet + fun:_XlcAddCT + fun:_XlcInitCTInfo + fun:initialize + fun:initialize + fun:_XlcCreateLC + fun:_XlcUtf8Loader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase + fun:XrmGetStringDatabase +} +{ + XrmGetStringDatabase is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:realloc + fun:add_codeset + fun:initialize + fun:_XlcCreateLC + fun:_XlcDefaultLoader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase + fun:XrmGetStringDatabase +} +{ + XrmGetStringDatabase is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:realloc + fun:add_codeset + fun:load_generic + fun:initialize + fun:_XlcCreateLC + fun:_XlcDefaultLoader + fun:_XOpenLC +} +{ + XrmGetStringDatabase is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:add_codeset + fun:load_generic + fun:initialize + fun:_XlcCreateLC + fun:_XlcDefaultLoader + fun:_XOpenLC +} +{ + XrmGetStringDatabase is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:load_generic + fun:initialize + fun:_XlcCreateLC + fun:_XlcDefaultLoader + fun:_XOpenLC +} +{ + XrmGetStringDatabase is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcAddCharSet + fun:_XlcAddCT + fun:_XlcInitCTInfo + fun:initialize + fun:initialize + fun:_XlcCreateLC + fun:_XlcUtf8Loader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase + fun:XrmGetStringDatabase +} +{ + XrmGetStringDatabase is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcCreateLocaleDataBase + fun:initialize + fun:initialize + fun:_XlcCreateLC + fun:_XlcUtf8Loader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase + fun:XrmGetStringDatabase +} +{ + XrmGetStringDatabase is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcSetConverter + fun:_XlcInitCTInfo + fun:initialize + fun:initialize + fun:_XlcCreateLC + fun:_XlcUtf8Loader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase + fun:XrmGetStringDatabase +} +{ + pthread initialization seems to leave some memory possibly lost + Memcheck:Leak + fun:calloc + obj:/lib/ld-2.3.6.so + obj:/lib/ld-2.3.6.so + fun:_dl_allocate_tls + fun:__pthread_initialize_minimal + obj:/usr/lib/debug/libpthread-0.10.so + obj:/usr/lib/debug/libpthread-0.10.so + obj:/lib/ld-2.3.6.so + obj:/lib/ld-2.3.6.so + obj:/lib/ld-2.3.6.so +} +{ + pthread initialization seems to leave some memory still reachable + Memcheck:Leak + fun:calloc + fun:_dl_tls_setup + fun:__pthread_initialize_minimal + obj:/usr/lib/debug/libpthread-0.10.so + obj:/usr/lib/debug/libpthread-0.10.so + obj:/lib/ld-2.3.6.so + obj:/lib/ld-2.3.6.so + obj:/lib/ld-2.3.6.so +} +{ + pthread initialization seems to leave some memory possibly lost + Memcheck:Leak + fun:memalign + obj:/lib/ld-2.3.6.so + fun:_dl_allocate_tls + fun:__pthread_initialize_minimal + obj:/usr/lib/debug/libpthread-0.10.so + obj:/usr/lib/debug/libpthread-0.10.so + obj:/lib/ld-2.3.6.so + obj:/lib/ld-2.3.6.so + obj:/lib/ld-2.3.6.so +} +{ + XrmGet*Database is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcAddCT + fun:_XlcInitCTInfo + fun:initialize + fun:initialize + fun:_XlcCreateLC + fun:_XlcUtf8Loader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase +} +{ + XrmGet*Database is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:PutEntry + fun:GetDatabase +} +{ + XrmGet*Database is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:initialize + fun:_XlcCreateLC + fun:_XlcDefaultLoader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase +} +{ + XrmGet*Database is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:add_codeset + fun:initialize + fun:_XlcCreateLC + fun:_XlcDefaultLoader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase +} +{ + XrmGet*Database is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcAddCharSet + fun:_XlcAddCT + fun:_XlcInitCTInfo + fun:initialize + fun:initialize + fun:_XlcCreateLC + fun:_XlcUtf8Loader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase +} +{ + XrmGet*Database is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:realloc + fun:add_codeset + fun:initialize + fun:_XlcCreateLC + fun:_XlcDefaultLoader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase +} +{ + XrmGet*Database is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcCreateDefaultCharSet + fun:_XlcAddCT + fun:_XlcInitCTInfo + fun:initialize + fun:initialize + fun:_XlcCreateLC + fun:_XlcUtf8Loader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase +} +{ + XrmGet*Database is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcCreateDefaultCharSet + fun:_XlcAddCT + fun:_XlcInitCTInfo + fun:initialize + fun:initialize + fun:_XlcCreateLC + fun:_XlcUtf8Loader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase +} +{ + XrmGet*Database is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcAddCT + fun:_XlcInitCTInfo + fun:initialize + fun:initialize + fun:_XlcCreateLC + fun:_XlcUtf8Loader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase +} +{ + XrmGet*Database is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcCreateLocaleDataBase + fun:initialize + fun:initialize + fun:_XlcCreateLC + fun:_XlcUtf8Loader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase +} +{ + XrmGet*Database is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcCreateDefaultCharSet + fun:_XlcAddCT + fun:_XlcInitCTInfo + fun:initialize + fun:initialize + fun:_XlcCreateLC + fun:_XlcUtf8Loader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase +} +{ + XrmGet*Database is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcSetConverter + fun:_XlcInitCTInfo + fun:initialize + fun:initialize + fun:_XlcCreateLC + fun:_XlcUtf8Loader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase +} +{ + XrmGet*Database is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcSetConverter + fun:_XlcDefaultLoader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase +} +{ + XrmGet*Database is fairly obnoxious about leaving reachable memory around + Memcheck:Leak + fun:malloc + fun:_XlcSetConverter + fun:_XlcAddUtf8Converters + fun:_XlcDefaultLoader + fun:_XOpenLC + fun:_XrmInitParseInfo + fun:NewDatabase +} +{ + Xau chooses not to free its static data... + Memcheck:Leak + fun:malloc + fun:XauFileName +} diff --git a/local/recipes/libs/cairo/source/test/6x13.pcf b/local/recipes/libs/cairo/source/test/6x13.pcf new file mode 100644 index 0000000000..1325ae64fd Binary files /dev/null and b/local/recipes/libs/cairo/source/test/6x13.pcf differ diff --git a/local/recipes/libs/cairo/source/test/COPYING b/local/recipes/libs/cairo/source/test/COPYING new file mode 100644 index 0000000000..3db71fb08e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/COPYING @@ -0,0 +1,26 @@ +Cairo is free software. + +These tests are mainly available under a liberal MIT license to simplify +any use of the code for reference purposes. Please check the opening comment +of each file for copyright and licensing information. + +The test suite also bundles some fonts for use by the test suite. The +fonts included, their licenses, and why we use them in the test suite +are as follows: + + Font License Distinguishing feature + -------- ------------- ---------------------- + 6x13.pcf Public Domain Bitmap font + + +The test suite also bundles some images for use by the test suite. The +images included, their licenses, and why we use them in the test suite +are as follows: + + Image License Distinguishing feature + ------------- ------------- ------------------------- + romedalen.jpg Public Domain Bitmap image (image/jpeg) + romedalen.png Public Domain Bitmap image (image/png) + +The kind contributors of the bundled files are (in alphabetical order): +Øyvind KolÃ¥s Author of the original romedalen shot. diff --git a/local/recipes/libs/cairo/source/test/README b/local/recipes/libs/cairo/source/test/README new file mode 100644 index 0000000000..e8b5ff6cc5 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/README @@ -0,0 +1,343 @@ +How to use cairo's test suite +============================= +Using this test should be as simple as running: + + meson test -C $builddir -v + +assuming that the cairo distribution in the directory above has been +configured and built in $builddir. The test suite here will use the +locally compiled library rather than installed version. + +The above command runs some source code as well as the rendering +tests. All the rendering tests are in a single meson test named +"cairo". It can be run with: + + meson test -C $builddir -v cairo + +The results of the test suite run are summarized in an index.html file +written to $builddir, which, when viewed in a web browser makes it +quite easy to visually see any failed renderings alongside the +corresponding reference image, (and a diff image as well). + +As some browsers do not permit Javascript to read from the local +filesystem, the view-test-results.py script in the $builddir can used +to view the results. It starts a http server serving the current +directory before displaying the test results in a browser. + +The test suite needs to be run before any code is committed and before +any release. See below for hints and rules governing the use of the suite. + +Running specific tests +---------------------- +During development it is desirable to only run a single test or groups +of related tests. Individual tests can be run by specifying the tests +names as arguments to the cairo test. + + meson test -v cairo --test-args "record-neg-extents-unbounded record-neg-extents-bounded" + +The test suite is built as a single binary, "cairo-test-suite", which +can be run directly instead of via meson. This may be more convenient +when specifying multiple test arguments. The executable needs to be +run in $builddir/test in order to find the image conversion +executables. Simply running the executable will run all tests. eg + + cd $builddir/test + ./cairo-test-suite + +Normally the executable will use the locally compiled library. But if +you have a LD_LIBRARY_PATH defined or built cairo with an -rpath, the +executable may not link with the locally compiled library. + +Individual tests can be run be specifying the tests names as arguments +to cairo-test-suite. For example, to run specific tests: + + ./cairo-test-suite record-neg-extents-unbounded record-neg-extents-bounded + +Or if you want to run all paint.* related tests you can use: + + ./cairo-test-suite paint + +Or if you want to check the current status of known failures: + + ./cairo-test-suite XFAIL + +Or to run a subset of tests, use the -k option to run only the tests +that include the given keyword: + + ./cairo-test-suite -k downscale + +The -l option lists all tests available. For convenience, the file +"completion.bash" in $builddir can be sourced to provide bash +completion of the test names in cairo-test-suite. + +By default, each test that is run will be tested on all backends that +have been built. The CAIRO_TEST_TARGET environment variable can be +used to select specific backends. For example: + + CAIRO_TEST_TARGET=pdf ./cairo-test-suite text-rotate + +Each test is run twice on each backend, once for each format. The +CAIRO_TEST_TARGET_FORMAT environment variable selects a single +format. The formats are "rgba" and "rgb". For example to run the +text-rotate test only on the image backend and only for the "rgba" +format: + + CAIRO_TEST_TARGET=image CAIRO_TEST_TARGET_FORMAT=rgba ./cairo-test-suite text-rotate + +Running tests under modified environments or tools +-------------------------------------------------- +To run tests under in gdb, one can simply run the cairo-suite-suite in +gdb. Usually a specific test will be desired. eg + + CAIRO_TEST_TARGET=image CAIRO_TEST_TARGET_FORMAT=rgba gdb --args ./cairo-test-suite text-rotate + +The cairo test suite runs each test in a child process so that crashes +do not stop the test. When running the test suite under tools, the "-f" +option disables forking. eg to run a test under valgrind: + + CAIRO_TEST_TARGET=image CAIRO_TEST_TARGET_FORMAT=rgba valgrind ./cairo-test-suite -f text-rotate + +The cairo test suite detects if it is running under gdb and disables +forking. Hence the reason the gdb example above did not use "-f". + +Complete list of test options +----------------------------- +cairo-test-suite options: + + ./cairo-test-suite [-afkxsl] [test-names|keywords ...] + + -a all; run the full set of tests. By default the test suite + skips similar surface and device offset testing. + -f foreground; do not fork + -k match tests by keyword + -l list only; just list selected test case names without executing + -s include slow, long running tests + -x exit on first failure + +Environment Variables: + +CAIRO_TEST_TARGET + Run the test only the the listed targets. eg + CAIRO_TEST_TARGET="image" + CAIRO_TEST_TARGET="pdf,ps3,ps2" + +CAIRO_TEST_TARGET_FORMAT + Run the test only the the listed targets. eg + CAIRO_TEST_TARGET_FORMAT="rgba" + CAIRO_TEST_TARGET_FORMAT="rgba,rgb" + +CAIRO_TEST_MODE + May contain a list of one or more of the following options + "full" - equivalent to the "-a" option + "similar" + "offset" + "scale" + "foreground" - equivalent to the "-f" option + "exit-on-failure" - equivalent to the "-x" option + eg + CAIRO_TEST_MODE="full,foreground" + +CAIRO_TESTS + A list of test to run. This is equivalent to listing the tests as + arguments to cairo=test-suite. eg + CAIRO_TESTS="record-neg-extents-unbounded record-neg-extents-bounded" + The tests may be separated by any of " \t,:;". + +srcdir + The test suite needs to find the "test" directory in the source + tree. The srcdir environment variable can be used to specify the + location of this directory. If this environment variable is not set, + the binary looks for the directory "srcdir" in the current + directory. The meson build system symlinks "srcdir" in the + $builddir/test directory to the "test" directory in the source + tree. If this is not found the binary defaults to the current + directory. + +CAIRO_REF_DIR + The directory containing the reference images. By default the test + suite looks for "reference" in $srcdir. For convenience, you can set + CAIRO_REF_DIR to point at a previous test directory, relative to the + current test directory, and any previous output will be used by + preference as reference images. + +CAIRO_TEST_TIMEOUT + The maximum time, in seconds, an indivdual test may run before it is + stopped. The default is 60 seconds. + +Getting the elusive zero failures +--------------------------------- +It's generally been very difficult to achieve a test run with zero +failures. The difficulties stem from the various versions of the many +libraries that the test suite depends on, (it depends on a lot more +than cairo itself), as well as fonts and other system-specific +settings. If your system differs significantly from the system on +which the reference images were generated, then you will likely see +the test suite reporting "failures", (even if cairo is working just +fine). + +Since the test suite must pass the Continuous Integration test in the +Gitlab instance hosting the cairo repository, the easiest way to get a +new or updated test to pass is to extract the test output from the +cairo gitlab CI to use as reference images. + +What if I can't make my system match? +------------------------------------- +For one reason or another, you may be unable to get a clean run of the +test suite even if cairo is working properly, (for example, you might +be on a system without freetype). In this case, it's still useful to +be able to determine if code changes you make to cairo result in any +regressions to the test suite. But it's hard to notice regressions if +there are many failures both before and after your changes. + +For this scenario, you can capture the output of a run of the test +suite before your changes, and then use the CAIRO_REF_DIR environment +variable to use that output as the reference images for a run after +your changes. The process looks like this: + + # Before code change there may be failures we don't care about + cd $builddir/test + ./cairo-test-suite + + # Let's save those output images + mkdir /some/directory/ + cp -r output /some/directory/ + + # hack, hack, hack + + # Now to see if nothing changed: + CAIRO_REF_DIR=/some/directory/ ./cairo-test-suite + +Best practices for cairo developers +=================================== +If we all follow the guidelines below, then both the test suite and +cairo itself will stay much healthier, and we'll all have a lot more +fun hacking on cairo. + +Before creating a Merge Request +------------------------------- +After pushing your branch to your cairo fork on gitlab.freedesktop.org, +check that the CI passes. A MR cannot be merged until the CI passes. + +It is likely that you will need to download test output images from +the Gitlab CI to use as reference images in order to get CI to pass. + +The reference image filenames have the form: + +.*.ref.png for correct images that pass. + +.*.xfail.png for incorrect images due to bugs. + +The .ref.png is the most general image that all backends +and formats for the test will be required to match. + +When comparing test output to the reference images, the test suite +performs a perceptual diff which permits some minor pixel differences +that are not visually discernible. Some targets may have differences +that exceed the threshold of the perceptual diff but still appear the +same as the reference image when eyeballed. In these cases, target +specific reference images can be created that override the general +reference image for the specific target. + +Reference images for specific backends can be created using filenames of the form: + ..ref.png + +eg clip.pdf.ref.png + +The target name "ps" can be used for both "ps2" and "ps3" targets. + +Reference images for specific formats can be created using filenames of the form: + ...ref.png + +eg + clip.pdf.argb32.ref.png + clip.pdf.rgb24.ref.png + +The recommended practice for creating reference images for a new test is: + +1. Create a .ref.png reference image from .image.argb32.out.png +output. + +2. Push to gitlab and check the CI result. + +3. If the image target fails, copy the .image.argb32.out.png output +from CI and use as the reference image. + +4. Once the image target passes in CI, check that the other targets +pass. If any fail, create ..ref.png reference images if the +output appears correct. + +5. If a target output is incorrect, try to determine if the cairo +target output is correct. eg view pdf files in Adobe Reader. If the +cairo target output is correct, it can be assumed the image converson +from target to png is buggy. File a bug against the conversion tool +and create a ..xfail.png reference image. + +In all cases, before creating a reference image from test output, the +image should be viewed to ensure that it is correct. + +When a new bug is found +----------------------- +A new test case should be added by imitating the style of an existing +test. This means adding the following files: + + new-bug.c + reference/new-bug.ref.png + reference/new-bug.xfail.png + +Where new-bug.c is a minimal program to demonstrate the bug, following +the style of existing tests. The new-bug.ref.png image should contain +the desired result of new-bug.c if the bug were fixed while +new-bug.xfail.png contains the current results of the test. + +"meson.build" should be edited by adding new-bug.c to test_sources. +And last but not least, don't forget to "git add" the new files. + +When a new feature is added +--------------------------- +It's important for the regression suite to keep pace with development +of the library. So a new test should be added for each new feature. +The work involved is similar the work described above for new bugs. +The only distinction is that the test is expected to pass so it +should not need a new-bug.xfail.png file. + +While working on a test +----------------------- +Before a bugfix or feature is ready, it may be useful to compare +output from different builds. For convenience, you can set +CAIRO_REF_DIR to point at a previous test directory, relative +to the current test directory, and any previous output will be +used by preference as reference images. + +When a bug is fixed +------------------- +The fix should be verified by running the test suite which should +result in an "unexpected pass" for the test of interest. Rejoice as +appropriate, then remove the relevant xfail.png file from git. + +Before releasing +---------------- +All tests should return a result of PASS for all supported (those enabled by +default) backends, meaning all known bugs are fixed, resulting in the happy +message: + + All XX tests passed + +Some notes on limitations in poppler +==================================== +One of the difficulties of our current test infrastructure is that we +rely on external tools to convert cairo's vector output (PDF, +PostScript, and SVG), into an image that can be used for the image +comparison. This means that any bugs in that conversion tool will +result in false negatives in the test suite. + +Here's the rule: If a cairo-pdf test reports a failure, but viewing +the resulting PDF file with acroread suggests that the PDF itself is +correct, then there's likely a bug in poppler. In this case, we can +simply report the poppler bug. Once we've done this, we can capture +poppler's buggy output as a pdf-specific reference image (as +reference/*.xfail.png) so that the test suite will regard the test as +passing, (and we'll ensure there is no regression). + +Once the poppler bug gets fixed, the test suite will start reporting a +false negative again, and this will be easy to fix by simply removing +the pdf-specific reference image. diff --git a/local/recipes/libs/cairo/source/test/a1-bug.c b/local/recipes/libs/cairo/source/test/a1-bug.c new file mode 100644 index 0000000000..8e00d40e3f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/a1-bug.c @@ -0,0 +1,61 @@ +/* + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + static const struct point { + double x; + double y; + } xy[] = { + { 627.016212, 221.749777 }, + { 756.120787, 221.749777 }, + { 756.120787, 557.602766 }, + { 626.952721, 557.602766 }, + { 626.548456, 493.315729 }, + }; + unsigned int i; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + for (i = 0; i < ARRAY_LENGTH (xy); i++) + cairo_line_to (cr, xy[i].x, xy[i].y); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill_preserve (cr); + + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (a1_bug, + "Check the fidelity of the rasterisation.", + "a1, raster", /* keywords */ + "target=raster", /* requirements */ + 1000, 800, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/a1-clip.c b/local/recipes/libs/cairo/source/test/a1-clip.c new file mode 100644 index 0000000000..0e84cd39b8 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/a1-clip.c @@ -0,0 +1,175 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define POINTS 10 +#define STEP (1.0 / POINTS) +#define PAD 1 +#define WIDTH (PAD + POINTS * 2 + PAD) +#define HEIGHT (WIDTH) + +static cairo_test_status_t +paint (cairo_t *cr, int width, int height) +{ + int i, j; + + /* Fill background white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* Draw in black */ + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_translate (cr, PAD, PAD); + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + for (i = 0; i < POINTS; i++) + for (j = 0; j < POINTS; j++) { + cairo_save (cr); + cairo_rectangle (cr, 2 * i + i * STEP, 2 * j + j * STEP, 1, 1); + cairo_clip (cr); + cairo_paint (cr); + cairo_restore (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +fill_equal (cairo_t *cr, int width, int height) +{ + int i, j; + + /* Fill background white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* Draw in black */ + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_translate (cr, PAD, PAD); + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + for (i = 0; i < POINTS; i++) + for (j = 0; j < POINTS; j++) { + cairo_save (cr); + cairo_rectangle (cr, 2 * i + i * STEP, 2 * j + j * STEP, 1, 1); + cairo_clip_preserve (cr); + cairo_fill (cr); + cairo_restore (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +fill (cairo_t *cr, int width, int height) +{ + int i, j; + + /* Fill background white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* Draw in black */ + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_translate (cr, PAD, PAD); + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + for (i = 0; i < POINTS; i++) + for (j = 0; j < POINTS; j++) { + cairo_save (cr); + cairo_rectangle (cr, 2 * i + i * STEP, 2 * j + j * STEP, 1, 1); + cairo_clip (cr); + cairo_rectangle (cr, 2 * i, 2 * j, 2, 2); + cairo_fill (cr); + cairo_restore (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +stroke (cairo_t *cr, int width, int height) +{ + int i, j; + + /* Fill background white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* Draw in black */ + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_translate (cr, PAD, PAD); + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + cairo_set_line_width (cr, 2); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + + for (i = 0; i < POINTS; i++) + for (j = 0; j < POINTS; j++) { + cairo_save (cr); + cairo_rectangle (cr, 2 * i + i * STEP, 2 * j + j * STEP, 1, 1); + cairo_clip (cr); + cairo_move_to (cr, 2 * i, 2 * j + 1); + cairo_line_to (cr, 2 * i + 2, 2 * j + 1); + cairo_stroke (cr); + cairo_restore (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (a1_clip_paint, + "Test sample position when drawing trapezoids with ANTIALIAS_NONE", + "alpha, clip", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, paint) + +CAIRO_TEST (a1_clip_fill, + "Test sample position when drawing trapezoids with ANTIALIAS_NONE", + "alpha, clip", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, fill) + +CAIRO_TEST (a1_clip_fill_equal, + "Test sample position when drawing trapezoids with ANTIALIAS_NONE", + "alpha, clip", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, fill_equal) + +CAIRO_TEST (a1_clip_stroke, + "Test sample position when drawing trapezoids with ANTIALIAS_NONE", + "alpha, clip", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, stroke) diff --git a/local/recipes/libs/cairo/source/test/a1-fill.c b/local/recipes/libs/cairo/source/test/a1-fill.c new file mode 100644 index 0000000000..8c8b8c8ae0 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/a1-fill.c @@ -0,0 +1,67 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +/* Exercise https://bugs.freedesktop.org/show_bug.cgi?id=31604 */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *a1; + cairo_t *cr2; + + a1 = cairo_image_surface_create (CAIRO_FORMAT_A1, 100, 100); + cr2 = cairo_create (a1); + cairo_surface_destroy (a1); + + cairo_set_operator (cr2, CAIRO_OPERATOR_SOURCE); + cairo_rectangle (cr2, 10, 10, 80, 80); + cairo_set_source_rgb (cr2, 1, 1, 1); + cairo_fill (cr2); + cairo_rectangle (cr2, 20, 20, 60, 60); + cairo_set_source_rgb (cr2, 0, 0, 0); + cairo_fill (cr2); + + a1 = cairo_surface_reference (cairo_get_target (cr2)); + cairo_destroy (cr2); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_mask_surface (cr, a1, 0, 0); + cairo_surface_destroy (a1); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (a1_fill, + "Test filling of an a1-surface and use as mask", + "a1, alpha, fill, mask", /* keywords */ + "target=raster", /* requirements */ + 100, 100, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/a1-image-sample.c b/local/recipes/libs/cairo/source/test/a1-image-sample.c new file mode 100644 index 0000000000..3c349af817 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/a1-image-sample.c @@ -0,0 +1,73 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define POINTS 10 +#define STEP (1.0 / POINTS) +#define PAD 1 +#define WIDTH (PAD + POINTS * 2 + PAD) +#define HEIGHT (WIDTH) + +/* A single, black pixel */ +static const uint32_t black_pixel = 0xff000000; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i, j; + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) &black_pixel, + CAIRO_FORMAT_ARGB32, + 1, 1, 4); + + /* Fill background white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, PAD, PAD); + + for (i = 0; i < POINTS; i++) + for (j = 0; j < POINTS; j++) { + cairo_set_source_surface (cr, surface, + 2 * i + i * STEP, 2 * j + j * STEP); + cairo_pattern_set_filter (cairo_get_source (cr), + CAIRO_FILTER_NEAREST); + cairo_paint (cr); + } + + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (a1_image_sample, + "Test sample position when drawing images with FILTER_NEAREST", + "image, alpha", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/a1-mask-sample.c b/local/recipes/libs/cairo/source/test/a1-mask-sample.c new file mode 100644 index 0000000000..4214e8f40e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/a1-mask-sample.c @@ -0,0 +1,83 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * Copyright © 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + * Chris Wilson + */ + +#include "cairo-test.h" + +#define POINTS 10 +#define STEP (1.0 / POINTS) +#define PAD 1 +#define WIDTH (PAD + POINTS * 2 + PAD) +#define HEIGHT (WIDTH) + +/* A single, opaque pixel */ +static const uint32_t black_pixel = 0xffffffff; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_pattern_t *mask; + int i, j; + + surface = cairo_image_surface_create_for_data ((unsigned char *) &black_pixel, + CAIRO_FORMAT_A8, + 1, 1, 4); + mask = cairo_pattern_create_for_surface (surface); + cairo_pattern_set_filter (mask, CAIRO_FILTER_NEAREST); + cairo_surface_destroy (surface); + + /* Fill background white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, PAD, PAD); + + cairo_set_source_rgb (cr, 0, 0, 0); + for (i = 0; i < POINTS; i++) { + for (j = 0; j < POINTS; j++) { + cairo_matrix_t m; + + cairo_matrix_init_translate (&m, + -(2 * i + i * STEP), + -(2 * j + j * STEP)); + cairo_pattern_set_matrix (mask, &m); + cairo_mask (cr, mask); + } + } + + cairo_pattern_destroy (mask); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (a1_mask_sample, + "Test sample position when masking with FILTER_NEAREST", + "image, alpha", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/a1-mask.c b/local/recipes/libs/cairo/source/test/a1-mask.c new file mode 100644 index 0000000000..c52aa9dd9f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/a1-mask.c @@ -0,0 +1,202 @@ +/* + * Copyright © Jeff Muizelaar + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * JEFF MUIZELAAR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Jeff Muizelaar + * Carl Worth + * Chris Wilson + */ + +#include "cairo-test.h" + +#define MASK_WIDTH 10 +#define MASK_HEIGHT 8 + +#ifdef WORDS_BIGENDIAN +#define MASK 0x28, 0x55 +#else +#define MASK 0x14, 0xAA +#endif +static unsigned char mask[(MASK_WIDTH + 7) / 8 * MASK_HEIGHT] = { + MASK, + MASK, + MASK, + MASK, + MASK, + MASK, + MASK, + MASK, +}; + +static cairo_test_status_t +check_status (const cairo_test_context_t *ctx, + cairo_status_t status, + cairo_status_t expected) +{ + if (status == expected) + return CAIRO_TEST_SUCCESS; + + cairo_test_log (ctx, + "Error: Expected status value %d (%s), received %d (%s)\n", + expected, + cairo_status_to_string (expected), + status, + cairo_status_to_string (status)); + return CAIRO_TEST_FAILURE; +} + +static cairo_test_status_t +test_surface_with_width_and_stride (const cairo_test_context_t *ctx, + int width, int stride, + cairo_status_t expected) +{ + cairo_test_status_t status; + cairo_surface_t *surface; + cairo_t *cr; + int len; + unsigned char *data; + + cairo_test_log (ctx, + "Creating surface with width %d and stride %d\n", + width, stride); + + len = stride; + if (len < 0) + len = -len; + data = xmalloc (len); + + surface = cairo_image_surface_create_for_data (data, CAIRO_FORMAT_A1, + width, 1, stride); + cr = cairo_create (surface); + + cairo_paint (cr); + + status = check_status (ctx, cairo_surface_status (surface), expected); + if (status) + goto BAIL; + + status = check_status (ctx, cairo_status (cr), expected); + if (status) + goto BAIL; + + BAIL: + cairo_destroy (cr); + cairo_surface_destroy (surface); + free (data); + return status; +} + +static cairo_test_status_t +draw (cairo_t *cr, int dst_width, int dst_height) +{ + unsigned char *mask_aligned; + cairo_surface_t *surface; + + surface = cairo_image_surface_create (CAIRO_FORMAT_A1, + MASK_WIDTH, + MASK_HEIGHT); + + mask_aligned = cairo_image_surface_get_data (surface); + if (mask_aligned != NULL) { + int stride = cairo_image_surface_get_stride (surface), row; + const unsigned char *src = mask; + unsigned char *dst = mask_aligned; + for (row = 0; row < MASK_HEIGHT; row++) { + memcpy (dst, src, (MASK_WIDTH + 7) / 8); + src += (MASK_WIDTH + 7) / 8; + dst += stride; + } + } + cairo_surface_mark_dirty (surface); + + /* Paint background blue */ + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_paint (cr); + + /* Then paint red through our mask */ + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + cairo_mask_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_test_status_t status = CAIRO_TEST_SUCCESS; + int test_width; + + /* first check the API strictness */ + for (test_width = 0; test_width < 40; test_width++) { + int test_stride = (test_width + 7) / 8; + int stride = cairo_format_stride_for_width (CAIRO_FORMAT_A1, + test_width); + cairo_status_t expected; + + /* First create a surface using the width as the stride, + * (most of these should fail). + */ + expected = (stride == test_stride) ? + CAIRO_STATUS_SUCCESS : CAIRO_STATUS_INVALID_STRIDE; + + status = test_surface_with_width_and_stride (ctx, + test_width, + test_stride, + expected); + if (status) + return status; + + status = test_surface_with_width_and_stride (ctx, + test_width, + -test_stride, + expected); + if (status) + return status; + + + /* Then create a surface using the correct stride, + * (should always succeed). + */ + status = test_surface_with_width_and_stride (ctx, + test_width, + stride, + CAIRO_STATUS_SUCCESS); + if (status) + return status; + + status = test_surface_with_width_and_stride (ctx, + test_width, + -stride, + CAIRO_STATUS_SUCCESS); + if (status) + return status; + } + + return status; +} + +CAIRO_TEST (a1_mask, + "test masks of CAIRO_FORMAT_A1", + "alpha, mask", /* keywords */ + NULL, /* requirements */ + MASK_WIDTH, MASK_HEIGHT, + preamble, draw) diff --git a/local/recipes/libs/cairo/source/test/a1-rasterisation.c b/local/recipes/libs/cairo/source/test/a1-rasterisation.c new file mode 100644 index 0000000000..b59090ab5e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/a1-rasterisation.c @@ -0,0 +1,101 @@ +/* + * Copyright 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* + * Test the fidelity of the rasterisation, paying careful attention to rounding. + */ + +#include "../src/cairo-fixed-type-private.h" +#define PRECISION (int)(1 << CAIRO_FIXED_FRAC_BITS) + +#define WIDTH ((PRECISION/2+1)*3) +#define HEIGHT ((PRECISION/2+1)*3) + +#define SUBPIXEL(v) ((v)/(double)(PRECISION/2)) + +static cairo_test_status_t +rectangles (cairo_t *cr, int width, int height) +{ + int x, y; + + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + for (x = 0; x < WIDTH; x += 3) { + for (y = 0; y < HEIGHT; y += 3) { + cairo_rectangle (cr, x + SUBPIXEL (y/3) - .5, y + SUBPIXEL (x/3) - .5, .5, .5); + } + } + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +triangles (cairo_t *cr, int width, int height) +{ + int x, y; + + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + for (x = 0; x < WIDTH; x += 3) { + for (y = 0; y < HEIGHT; y += 3) { + /* a rectangle with a diagonal to force tessellation */ + cairo_move_to (cr, x + SUBPIXEL (y/3) - .5, y + SUBPIXEL (x/3) - .5); + cairo_rel_line_to (cr, .5, .5); + cairo_rel_line_to (cr, 0, -.5); + cairo_rel_line_to (cr, -.5, 0); + cairo_rel_line_to (cr, 0, .5); + cairo_rel_line_to (cr, .5, 0); + } + } + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (a1_rasterisation_rectangles, + "Check the fidelity of the rasterisation.", + "rasterisation", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, rectangles) + +CAIRO_TEST (a1_rasterisation_triangles, + "Check the fidelity of the rasterisation.", + "rasterisation", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, triangles) diff --git a/local/recipes/libs/cairo/source/test/a1-sample.c b/local/recipes/libs/cairo/source/test/a1-sample.c new file mode 100644 index 0000000000..977dfc832f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/a1-sample.c @@ -0,0 +1,59 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define WIDTH (256) //CAIRO_FIXED_ONE +#define HEIGHT (WIDTH) + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i, j; + + /* Fill background white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + cairo_set_source_rgb (cr, 0, 0, 0); + + /* Only the single rectangle that covers the centre pixel should be filled*/ + for (i = 0; i < 256; i++) + for (j = 0; j < 256; j++) { + cairo_rectangle (cr, i + i/256., j + j/256., 1/256., 1/256.); + cairo_fill (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (a1_sample, + "Tests unantialiased rendering of a quantum box", + " alpha", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/a1-traps-sample.c b/local/recipes/libs/cairo/source/test/a1-traps-sample.c new file mode 100644 index 0000000000..5bb97bb4ca --- /dev/null +++ b/local/recipes/libs/cairo/source/test/a1-traps-sample.c @@ -0,0 +1,64 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define POINTS 10 +#define STEP (1.0 / POINTS) +#define PAD 1 +#define WIDTH (PAD + POINTS * 2 + PAD) +#define HEIGHT (WIDTH) + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i, j; + + /* Fill background white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* Draw in black */ + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_translate (cr, PAD, PAD); + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + for (i = 0; i < POINTS; i++) + for (j = 0; j < POINTS; j++) { + cairo_rectangle (cr, 2 * i + i * STEP, 2 * j + j * STEP, 1, 1); + cairo_fill (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (a1_traps_sample, + "Test sample position when drawing trapezoids with ANTIALIAS_NONE", + "alpha, traps", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/a8-clear.c b/local/recipes/libs/cairo/source/test/a8-clear.c new file mode 100644 index 0000000000..1459f833e2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/a8-clear.c @@ -0,0 +1,64 @@ +/* + * Copyright © 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + * + * Based on a bug snippet by Jeremy Moles + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *mask; + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + cairo_push_group_with_content (cr, CAIRO_CONTENT_ALPHA); + { + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, width, height); + cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR); + cairo_set_line_width (cr, 10); + cairo_stroke (cr); + } + mask = cairo_pop_group (cr); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_mask (cr, mask); + cairo_pattern_destroy (mask); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (a8_clear, + "Test clear on an a8 surface", + "a8, clear", /* keywords */ + NULL, /* requirements */ + 40, 40, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/a8-mask.c b/local/recipes/libs/cairo/source/test/a8-mask.c new file mode 100644 index 0000000000..ec708121ea --- /dev/null +++ b/local/recipes/libs/cairo/source/test/a8-mask.c @@ -0,0 +1,201 @@ +/* + * Copyright © Jeff Muizelaar + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * JEFF MUIZELAAR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Jeff Muizelaar + * Carl Worth + */ + +#include "cairo-test.h" + +#define MASK_WIDTH 8 +#define MASK_HEIGHT 8 + +static unsigned char mask[MASK_WIDTH * MASK_HEIGHT] = { + 0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0, + 0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0, + 0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0, + 0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0, + 0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0, + 0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0, + 0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0, + 0x0, 0x0, 0xff, 0x0, 0xff, 0x0, 0x0, 0x0, +}; + +static cairo_test_status_t +check_status (const cairo_test_context_t *ctx, + cairo_status_t status, + cairo_status_t expected) +{ + if (status == expected) + return CAIRO_TEST_SUCCESS; + + cairo_test_log (ctx, + "Error: Expected status value %d (%s), received %d (%s)\n", + expected, + cairo_status_to_string (expected), + status, + cairo_status_to_string (status)); + return CAIRO_TEST_FAILURE; +} + +static cairo_test_status_t +test_surface_with_width_and_stride (const cairo_test_context_t *ctx, + int width, int stride, + cairo_status_t expected) +{ + cairo_test_status_t status; + cairo_surface_t *surface; + cairo_t *cr; + int len; + unsigned char *data; + + cairo_test_log (ctx, + "Creating surface with width %d and stride %d\n", + width, stride); + + len = stride; + if (len < 0) + len = -len; + data = xmalloc (len); + + surface = cairo_image_surface_create_for_data (data, CAIRO_FORMAT_A8, + width, 1, stride); + cr = cairo_create (surface); + + cairo_paint (cr); + + status = check_status (ctx, cairo_surface_status (surface), expected); + if (status) + goto BAIL; + + status = check_status (ctx, cairo_status (cr), expected); + if (status) + goto BAIL; + + BAIL: + cairo_destroy (cr); + cairo_surface_destroy (surface); + free (data); + return status; +} + +static cairo_test_status_t +draw (cairo_t *cr, int dst_width, int dst_height) +{ + int stride, row; + unsigned char *src, *dst, *mask_aligned; + cairo_surface_t *surface; + + /* Now test actually drawing through our mask data, allocating and + * copying with the proper stride. */ + stride = cairo_format_stride_for_width (CAIRO_FORMAT_A8, + MASK_WIDTH); + + mask_aligned = xmalloc (stride * MASK_HEIGHT); + + src = mask; + dst = mask_aligned; + for (row = 0; row < MASK_HEIGHT; row++) { + memcpy (dst, src, MASK_WIDTH); + src += MASK_WIDTH; + dst += stride; + } + + surface = cairo_image_surface_create_for_data (mask_aligned, + CAIRO_FORMAT_A8, + MASK_WIDTH, + MASK_HEIGHT, + stride); + + /* Paint background blue */ + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_paint (cr); + + /* Then paint red through our mask */ + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + cairo_mask_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + + free (mask_aligned); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_test_status_t status = CAIRO_TEST_SUCCESS; + int test_width; + + for (test_width = 0; test_width < 40; test_width++) { + int stride = cairo_format_stride_for_width (CAIRO_FORMAT_A8, + test_width); + cairo_status_t expected; + + /* First create a surface using the width as the stride, + * (most of these should fail). + */ + expected = (stride == test_width) ? + CAIRO_STATUS_SUCCESS : CAIRO_STATUS_INVALID_STRIDE; + + status = test_surface_with_width_and_stride (ctx, + test_width, + test_width, + expected); + if (status) + return status; + + status = test_surface_with_width_and_stride (ctx, + test_width, + -test_width, + expected); + if (status) + return status; + + + /* Then create a surface using the correct stride, + * (should always succeed). + */ + status = test_surface_with_width_and_stride (ctx, + test_width, + stride, + CAIRO_STATUS_SUCCESS); + if (status) + return status; + + status = test_surface_with_width_and_stride (ctx, + test_width, + -stride, + CAIRO_STATUS_SUCCESS); + if (status) + return status; + } + + return status; +} + +CAIRO_TEST (a8_mask, + "test masks of CAIRO_FORMAT_A8", + "alpha, mask", /* keywords */ + NULL, /* requirements */ + 8, 8, + preamble, draw) diff --git a/local/recipes/libs/cairo/source/test/aliasing.c b/local/recipes/libs/cairo/source/test/aliasing.c new file mode 100644 index 0000000000..73c1f1ae28 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/aliasing.c @@ -0,0 +1,100 @@ +/* + * Copyright 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* A fun little test to explore color fringing in various experimental + * subpixel rasterisation techniques. + */ + +#define WIDTH 60 +#define HEIGHT 40 + +static const struct color { + double red, green, blue; +} color[] = { + { 1, 1, 1 }, + { 0, 0, 0 }, + { 1, 0, 0 }, + { 0, 1, 0 }, + { 0, 0, 1 }, + { 1, 1, 0 }, + { 0, 1, 1 }, + { 1, 0, 1 }, + { .5, .5, .5 }, +}; + +#define NUM_COLORS ARRAY_LENGTH (color) + +static void +object (cairo_t *cr, const struct color *fg, const struct color *bg) +{ + cairo_set_source_rgb (cr, bg->red, bg->green, bg->blue); + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_fill (cr); + + cairo_set_source_rgb (cr, fg->red, fg->green, fg->blue); + cairo_save (cr); + cairo_scale (cr, WIDTH, HEIGHT); + cairo_arc (cr, .5, .5, .5 - 4. / MAX (WIDTH, HEIGHT), 0, 2 * M_PI); + cairo_fill (cr); + cairo_arc (cr, .5, .5, .5 - 2. / MAX (WIDTH, HEIGHT), 0, 2 * M_PI); + cairo_restore (cr); + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + + cairo_set_source_rgb (cr, bg->red, bg->green, bg->blue); + cairo_set_line_width (cr, 4.); + cairo_move_to (cr, 4, HEIGHT-4); + cairo_line_to (cr, WIDTH-12, 4); + cairo_move_to (cr, 12, HEIGHT-4); + cairo_line_to (cr, WIDTH-4, 4); + cairo_stroke (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + unsigned int i, j; + + for (i = 0; i < NUM_COLORS; i++) { + for (j = 0; j < NUM_COLORS; j++) { + cairo_save (cr); + cairo_translate (cr, i * WIDTH, j * HEIGHT); + object (cr, &color[i], &color[j]); + cairo_restore (cr); + } + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (aliasing, + "Check for subpixel aliasing and color fringing", + "rasterisation", /* keywords */ + "target=raster", /* requirements */ + NUM_COLORS * WIDTH, NUM_COLORS * HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/alpha-similar.c b/local/recipes/libs/cairo/source/test/alpha-similar.c new file mode 100644 index 0000000000..86c6ae39db --- /dev/null +++ b/local/recipes/libs/cairo/source/test/alpha-similar.c @@ -0,0 +1,74 @@ +/* + * Copyright 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_surface_t * +create_source (cairo_surface_t *target, int width, int height) +{ + cairo_surface_t *similar; + cairo_t *cr; + + similar = cairo_surface_create_similar (target, + CAIRO_CONTENT_ALPHA, + width, height); + cr = cairo_create (similar); + cairo_surface_destroy (similar); + + cairo_set_source_rgba (cr, 1, 0, 0, .5); + cairo_paint (cr); + + similar = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return similar; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *source; + + source = create_source (cairo_get_target (cr), width, height); + cairo_set_source_surface (cr, source, 0, 0); + cairo_surface_destroy (source); + + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +/* + * XFAIL: discrepancy between backends in applying color components of a pure + * alpha surface + */ +CAIRO_TEST (alpha_similar, + "Tests creation of similar alpha surfaces" + "\nApplication of a pure-alpha similar source is inconsistent across backends.", + "alpha, similar", /* keywords */ + NULL, /* requirements */ + 10, 10, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/any2ppm.c b/local/recipes/libs/cairo/source/test/any2ppm.c new file mode 100644 index 0000000000..f601ec8359 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/any2ppm.c @@ -0,0 +1,900 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + * + * Contributor(s): + * Carlos Garcia Campos + * + * Adapted from pdf2png.c: + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Kristian Høgsberg + */ + +#include "config.h" + +#if HAVE_UNISTD_H +#include +#endif +#include +#include +#include + +#include + +#if CAIRO_HAS_INTERPRETER +#include +#endif + +#if CAIRO_CAN_TEST_PDF_SURFACE +#include +#endif + +#if CAIRO_CAN_TEST_SVG_SURFACE +#define RSVG_DISABLE_DEPRECATION_WARNINGS +#include +#ifndef RSVG_CAIRO_H +#include +#endif +#endif + +#if CAIRO_HAS_SPECTRE +#include +#endif + +#include + +#if HAVE_FCNTL_H +#include +#endif + +#if HAVE_UNISTD_H && HAVE_SIGNAL_H && HAVE_SYS_STAT_H && HAVE_SYS_SOCKET_H && (HAVE_POLL_H || HAVE_SYS_POLL_H) && HAVE_SYS_UN_H +#include +#include +#include +#include + +#if defined(HAVE_POLL_H) +#include +#elif defined(HAVE_SYS_POLL_H) +#include +#endif + +#define SOCKET_PATH "./.any2ppm" +#define TIMEOUT 60000 /* 60 seconds */ + +#if HAVE_FORK +#define CAN_RUN_AS_DAEMON 1 +#endif +#endif + +#define ARRAY_LENGTH(__array) ((int) (sizeof (__array) / sizeof (__array[0]))) + +static int +_cairo_writen (int fd, char *buf, int len) +{ + while (len) { + int ret; + + ret = write (fd, buf, len); + if (ret == -1) { + int err = errno; + switch (err) { + case EINTR: + case EAGAIN: + continue; + default: + return 0; + } + } + len -= ret; + buf += ret; + } + + return 1; +} + +static int +_cairo_write (int fd, + char *buf, int maxlen, int buflen, + const unsigned char *src, int srclen) +{ + if (buflen < 0) + return buflen; + + while (srclen) { + int len; + + len = buflen + srclen; + if (len > maxlen) + len = maxlen; + len -= buflen; + + memcpy (buf + buflen, src, len); + buflen += len; + srclen -= len; + src += len; + + if (buflen == maxlen) { + if (! _cairo_writen (fd, buf, buflen)) + return -1; + + buflen = 0; + } + } + + return buflen; +} + +static const char * +write_ppm (cairo_surface_t *surface, int fd) +{ + char buf[4096]; + cairo_format_t format; + const char *format_str; + const unsigned char *data; + int len; + int width, height, stride; + int i, j; + + data = cairo_image_surface_get_data (surface); + height = cairo_image_surface_get_height (surface); + width = cairo_image_surface_get_width (surface); + stride = cairo_image_surface_get_stride (surface); + format = cairo_image_surface_get_format (surface); + if (format == CAIRO_FORMAT_ARGB32) { + /* see if we can convert to a standard ppm type and trim a few bytes */ + const unsigned char *alpha = data; + for (j = height; j--; alpha += stride) { + for (i = 0; i < width; i++) { + if ((*(unsigned int *) (alpha+4*i) & 0xff000000) != 0xff000000) + goto done; + } + } + format = CAIRO_FORMAT_RGB24; + done: ; + } + + switch (format) { + case CAIRO_FORMAT_ARGB32: + /* XXX need true alpha for svg */ + format_str = "P7"; + break; + case CAIRO_FORMAT_RGB24: + format_str = "P6"; + break; + case CAIRO_FORMAT_A8: + format_str = "P5"; + break; + case CAIRO_FORMAT_A1: + case CAIRO_FORMAT_RGB16_565: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGBA128F: + case CAIRO_FORMAT_INVALID: + default: + return "unhandled image format"; + } + + len = sprintf (buf, "%s %d %d 255\n", format_str, width, height); + for (j = 0; j < height; j++) { + const unsigned int *row = (unsigned int *) (data + stride * j); + + switch ((int) format) { + case CAIRO_FORMAT_ARGB32: + len = _cairo_write (fd, + buf, sizeof (buf), len, + (unsigned char *) row, 4 * width); + break; + case CAIRO_FORMAT_RGB24: + for (i = 0; i < width; i++) { + unsigned char rgb[3]; + unsigned int p = *row++; + rgb[0] = (p & 0xff0000) >> 16; + rgb[1] = (p & 0x00ff00) >> 8; + rgb[2] = (p & 0x0000ff) >> 0; + len = _cairo_write (fd, + buf, sizeof (buf), len, + rgb, 3); + } + break; + case CAIRO_FORMAT_A8: + len = _cairo_write (fd, + buf, sizeof (buf), len, + (unsigned char *) row, width); + break; + } + if (len < 0) + return "write failed"; + } + + if (len && ! _cairo_writen (fd, buf, len)) + return "write failed"; + + return NULL; +} + +#if CAIRO_HAS_INTERPRETER +static cairo_surface_t * +_create_image (void *closure, + cairo_content_t content, + double width, double height, + long uid) +{ + cairo_surface_t **out = closure; + cairo_format_t format; + switch (content) { + case CAIRO_CONTENT_ALPHA: + format = CAIRO_FORMAT_A8; + break; + case CAIRO_CONTENT_COLOR: + format = CAIRO_FORMAT_RGB24; + break; + default: + case CAIRO_CONTENT_COLOR_ALPHA: + format = CAIRO_FORMAT_ARGB32; + break; + } + *out = cairo_image_surface_create (format, width, height); + return cairo_surface_reference (*out); +} + +static const char * +_cairo_script_render_page (const char *filename, + cairo_surface_t **surface_out) +{ + cairo_script_interpreter_t *csi; + cairo_surface_t *surface = NULL; + cairo_status_t status; + const cairo_script_interpreter_hooks_t hooks = { + &surface, + _create_image, + NULL, /* surface_destroy */ + NULL, /* context_create */ + NULL, /* context_destroy */ + NULL, /* show_page */ + NULL /* copy_page */ + }; + + csi = cairo_script_interpreter_create (); + cairo_script_interpreter_install_hooks (csi, &hooks); + status = cairo_script_interpreter_run (csi, filename); + if (status) { + cairo_surface_destroy (surface); + surface = NULL; + } + status = cairo_script_interpreter_destroy (csi); + if (surface == NULL) + return "cairo-script interpreter failed"; + + if (status == CAIRO_STATUS_SUCCESS) + status = cairo_surface_status (surface); + if (status) { + cairo_surface_destroy (surface); + return cairo_status_to_string (status); + } + + *surface_out = surface; + return NULL; +} + +static const char * +cs_convert (char **argv, int fd) +{ + const char *err; + cairo_surface_t *surface = NULL; /* silence compiler warning */ + + err = _cairo_script_render_page (argv[0], &surface); + if (err != NULL) + return err; + + err = write_ppm (surface, fd); + cairo_surface_destroy (surface); + + return err; +} +#else +static const char * +cs_convert (char **argv, int fd) +{ + return "compiled without CairoScript support."; +} +#endif + +#if CAIRO_CAN_TEST_PDF_SURFACE +/* adapted from pdf2png.c */ +static const char * +_poppler_render_page (const char *filename, + const char *page_label, + cairo_surface_t **surface_out) +{ + PopplerDocument *document; + PopplerPage *page; + double width, height; + GError *error = NULL; + gchar *absolute, *uri; + cairo_surface_t *surface; + cairo_t *cr; + cairo_status_t status; + + if (g_path_is_absolute (filename)) { + absolute = g_strdup (filename); + } else { + gchar *dir = g_get_current_dir (); + absolute = g_build_filename (dir, filename, (gchar *) 0); + g_free (dir); + } + + uri = g_filename_to_uri (absolute, NULL, &error); + g_free (absolute); + if (uri == NULL) + return error->message; /* XXX g_error_free (error) */ + + document = poppler_document_new_from_file (uri, NULL, &error); + g_free (uri); + if (document == NULL) + return error->message; /* XXX g_error_free (error) */ + + page = poppler_document_get_page_by_label (document, page_label); + g_object_unref (document); + if (page == NULL) + return "page not found"; + + poppler_page_get_size (page, &width, &height); + + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height); + cr = cairo_create (surface); + + cairo_set_source_rgb (cr, 1., 1., 1.); + cairo_paint (cr); + cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR_ALPHA); + + poppler_page_render (page, cr); + g_object_unref (page); + + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + status = cairo_status (cr); + cairo_destroy (cr); + + if (status) { + cairo_surface_destroy (surface); + return cairo_status_to_string (status); + } + + *surface_out = surface; + return NULL; +} + +static const char * +pdf_convert (char **argv, int fd) +{ + const char *err; + cairo_surface_t *surface = NULL; /* silence compiler warning */ + + err = _poppler_render_page (argv[0], argv[1], &surface); + if (err != NULL) + return err; + + err = write_ppm (surface, fd); + cairo_surface_destroy (surface); + + return err; +} +#else +static const char * +pdf_convert (char **argv, int fd) +{ + return "compiled without PDF support."; +} +#endif + +#if CAIRO_CAN_TEST_SVG_SURFACE +static const char * +_rsvg_render_page (const char *filename, + cairo_surface_t **surface_out) +{ + RsvgHandle *handle; + RsvgDimensionData dimensions; + GError *error = NULL; + cairo_surface_t *surface; + cairo_t *cr; + cairo_status_t status; + + handle = rsvg_handle_new_from_file (filename, &error); + if (handle == NULL) + return error->message; /* XXX g_error_free */ + + rsvg_handle_set_dpi (handle, 72.0); + rsvg_handle_get_dimensions (handle, &dimensions); + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + dimensions.width, + dimensions.height); + cr = cairo_create (surface); + + rsvg_handle_render_cairo (handle, cr); + g_object_unref (handle); + + status = cairo_status (cr); + cairo_destroy (cr); + + if (status) { + cairo_surface_destroy (surface); + return cairo_status_to_string (status); + } + + *surface_out = surface; + return NULL; +} + +static const char * +svg_convert (char **argv, int fd) +{ + const char *err; + cairo_surface_t *surface = NULL; /* silence compiler warning */ + + err = _rsvg_render_page (argv[0], &surface); + if (err != NULL) + return err; + + err = write_ppm (surface, fd); + cairo_surface_destroy (surface); + + return err; +} +#else +static const char * +svg_convert (char **argv, int fd) +{ + return "compiled without SVG support."; +} +#endif + +#if CAIRO_HAS_SPECTRE +static const char * +_spectre_render_page (const char *filename, + const char *page_label, + cairo_surface_t **surface_out) +{ + static const cairo_user_data_key_t key; + + SpectreDocument *document; + SpectreStatus status; + int width, height, stride; + unsigned char *pixels; + cairo_surface_t *surface; + + document = spectre_document_new (); + spectre_document_load (document, filename); + status = spectre_document_status (document); + if (status) { + spectre_document_free (document); + return spectre_status_to_string (status); + } + + if (page_label) { + SpectrePage *page; + SpectreRenderContext *rc; + + page = spectre_document_get_page_by_label (document, page_label); + spectre_document_free (document); + if (page == NULL) + return "page not found"; + + spectre_page_get_size (page, &width, &height); + rc = spectre_render_context_new (); + spectre_render_context_set_page_size (rc, width, height); + spectre_page_render (page, rc, &pixels, &stride); + spectre_render_context_free (rc); + status = spectre_page_status (page); + spectre_page_free (page); + if (status) { + free (pixels); + return spectre_status_to_string (status); + } + } else { + spectre_document_get_page_size (document, &width, &height); + spectre_document_render (document, &pixels, &stride); + spectre_document_free (document); + } + + surface = cairo_image_surface_create_for_data (pixels, + CAIRO_FORMAT_RGB24, + width, height, + stride); + cairo_surface_set_user_data (surface, &key, + pixels, (cairo_destroy_func_t) free); + *surface_out = surface; + return NULL; +} + +static const char * +ps_convert (char **argv, int fd) +{ + const char *err; + cairo_surface_t *surface = NULL; /* silence compiler warning */ + + err = _spectre_render_page (argv[0], argv[1], &surface); + if (err != NULL) + return err; + + err = write_ppm (surface, fd); + cairo_surface_destroy (surface); + + return err; +} +#else +static const char * +ps_convert (char **argv, int fd) +{ + return "compiled without PostScript support."; +} +#endif + +static const char * +convert (char **argv, int fd) +{ + static const struct converter { + const char *type; + const char *(*func) (char **, int); + } converters[] = { + { "cs", cs_convert }, + { "pdf", pdf_convert }, + { "ps", ps_convert }, + { "svg", svg_convert }, + { NULL, NULL } + }; + const struct converter *converter = converters; + char *type; + + type = strrchr (argv[0], '.'); + if (type == NULL) + return "no file extension"; + type++; + + while (converter->type) { + if (strcmp (type, converter->type) == 0) + return converter->func (argv, fd); + converter++; + } + return "no converter"; +} + +#if CAN_RUN_AS_DAEMON +static int +_getline (int fd, char **linep, size_t *lenp) +{ + char *line; + size_t len, i; + ssize_t ret; + + line = *linep; + if (line == NULL) { + line = malloc (1024); + if (line == NULL) + return -1; + line[0] = '\0'; + len = 1024; + } else + len = *lenp; + + /* XXX simple, but ugly! */ + i = 0; + do { + if (i == len - 1) { + char *nline; + + nline = realloc (line, len + 1024); + if (nline == NULL) + goto out; + + line = nline; + len += 1024; + } + + ret = read (fd, line + i, 1); + if (ret == -1 || ret == 0) + goto out; + } while (line[i++] != '\n'); + +out: + line[i] = '\0'; + *linep = line; + *lenp = len; + return i-1; +} + +static int +split_line (char *line, char *argv[], int max_argc) +{ + int i = 0; + + max_argc--; /* leave one spare for the trailing NULL */ + + argv[i++] = line; + while (i < max_argc && (line = strchr (line, ' ')) != NULL) { + *line++ = '\0'; + argv[i++] = line; + } + + /* chomp the newline */ + line = strchr (argv[i-1], '\n'); + if (line != NULL) + *line = '\0'; + + argv[i] = NULL; + + return i; +} + +static int +any2ppm_daemon_exists (void) +{ + struct stat st; + int fd; + char buf[80]; + int pid; + int ret; + + if (stat (SOCKET_PATH, &st) < 0) + return 0; + + fd = open (SOCKET_PATH ".pid", O_RDONLY); + if (fd < 0) + return 0; + + pid = 0; + ret = read (fd, buf, sizeof (buf) - 1); + if (ret > 0) { + buf[ret] = '\0'; + pid = atoi (buf); + } + close (fd); + + return pid > 0 && kill (pid, 0) == 0; +} + +static int +write_pid_file (void) +{ + int fd; + char buf[80]; + int ret; + + fd = open (SOCKET_PATH ".pid", O_CREAT | O_TRUNC | O_WRONLY, 0666); + if (fd < 0) + return 0; + + ret = sprintf (buf, "%d\n", getpid ()); + ret = write (fd, buf, ret) == ret; + close (fd); + + return ret; +} + +static int +open_devnull_to_fd (int want_fd, int flags) +{ + int error; + int got_fd; + + close (want_fd); + + got_fd = open("/dev/null", flags | O_CREAT, 0700); + if (got_fd == -1) + return -1; + + error = dup2 (got_fd, want_fd); + close (got_fd); + + return error; +} + +static int +daemonize (void) +{ + void (*oldhup) (int); + + /* Let the parent go. */ + switch (fork ()) { + case -1: return -1; + case 0: break; + default: _exit (0); + } + + /* Become session leader. */ + if (setsid () == -1) + return -1; + + /* Refork to yield session leadership. */ + oldhup = signal (SIGHUP, SIG_IGN); + + switch (fork ()) { /* refork to yield session leadership. */ + case -1: return -1; + case 0: break; + default: _exit (0); + } + + signal (SIGHUP, oldhup); + + /* Establish stdio. */ + if (open_devnull_to_fd (0, O_RDONLY) == -1) + return -1; + if (open_devnull_to_fd (1, O_WRONLY | O_APPEND) == -1) + return -1; + if (dup2 (1, 2) == -1) + return -1; + + return 0; +} + +static const char * +any2ppm_daemon (void) +{ + int timeout = TIMEOUT; + struct pollfd pfd; + int sk, fd; + long flags; + struct sockaddr_un addr; + char *line = NULL; + size_t len = 0; + +#ifdef SIGPIPE + signal (SIGPIPE, SIG_IGN); +#endif + + /* XXX racy! */ + if (getenv ("ANY2PPM_FORCE") == NULL && any2ppm_daemon_exists ()) + return "any2ppm daemon already running"; + + unlink (SOCKET_PATH); + + sk = socket (PF_UNIX, SOCK_STREAM, 0); + if (sk == -1) + return "unable to create socket"; + + memset (&addr, 0, sizeof (addr)); + addr.sun_family = AF_UNIX; + strcpy (addr.sun_path, SOCKET_PATH); + if (bind (sk, (struct sockaddr *) &addr, sizeof (addr)) == -1) { + close (sk); + return "unable to bind socket"; + } + + flags = fcntl (sk, F_GETFL); + if (flags == -1 || fcntl (sk, F_SETFL, flags | O_NONBLOCK) == -1) { + close (sk); + return "unable to set socket to non-blocking"; + } + + if (listen (sk, 5) == -1) { + close (sk); + return "unable to listen on socket"; + } + + /* ready for client connection - detach from parent/terminal */ + if (getenv ("ANY2PPM_NODAEMON") == NULL && daemonize () == -1) { + close (sk); + return "unable to detach from parent"; + } + + if (! write_pid_file ()) { + close (sk); + return "unable to write pid file"; + } + + if (getenv ("ANY2PPM_TIMEOUT") != NULL) { + timeout = atoi (getenv ("ANY2PPM_TIMEOUT")); + if (timeout == 0) + timeout = -1; + if (timeout > 0) + timeout *= 1000; /* convert env (in seconds) to milliseconds */ + } + + pfd.fd = sk; + pfd.events = POLLIN; + pfd.revents = 0; /* valgrind */ + while (poll (&pfd, 1, timeout) > 0) { + while ((fd = accept (sk, NULL, NULL)) != -1) { + if (_getline (fd, &line, &len) != -1) { + char *argv[10]; + + if (split_line (line, argv, ARRAY_LENGTH (argv)) > 0) { + const char *err; + + err = convert (argv, fd); + if (err != NULL) { + FILE *file = fopen (".any2ppm.errors", "a"); + if (file != NULL) { + fprintf (file, + "Failed to convert '%s': %s\n", + argv[0], err); + fclose (file); + } + } + } + } + close (fd); + } + } + close (sk); + unlink (SOCKET_PATH); + unlink (SOCKET_PATH ".pid"); + + free (line); + return NULL; +} +#else +static const char * +any2ppm_daemon (void) +{ + return "daemon not compiled in."; +} +#endif + +int +main (int argc, char **argv) +{ + const char *err; + +#if CAIRO_CAN_TEST_PDF_SURFACE || CAIRO_CAN_TEST_SVG_SURFACE +#if GLIB_MAJOR_VERSION <= 2 && GLIB_MINOR_VERSION <= 34 + g_type_init (); +#endif +#endif + +#if defined(_WIN32) && !defined (__CYGWIN__) + _setmode (1, _O_BINARY); +#endif + + if (argc == 1) + err = any2ppm_daemon (); + else + err = convert (argv + 1, 1); + if (err != NULL) { + fprintf (stderr, "Failed to run converter: %s\n", err); + return EXIT_FAILURE; + } + + return EXIT_SUCCESS; +} diff --git a/local/recipes/libs/cairo/source/test/api-special-cases.c b/local/recipes/libs/cairo/source/test/api-special-cases.c new file mode 100644 index 0000000000..d926aa6520 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/api-special-cases.c @@ -0,0 +1,1943 @@ +/* + * Copyright © 2010 Red Hat Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Benjamin Otte + */ + +/* + * WHAT THIS TEST DOES + * + * This test tests that for all public APIs Cairo behaves correct, consistent + * and most of all doesn't crash. It does this by calling all APIs that take + * surfaces or contexts and calling them on specially prepared arguments that + * should fail when called on this function. + * + * ADDING NEW FUNCTIONS + * + * You need (for adding the function cairo_surface_foo): + * 1) A surface_test_func_t named test_cairo_surface_foo that gets passed the + * prepared surface and has the job of calling the function and checking + * the return value (if one exists) for correctness. The top of this file + * contains all these shim functions. + * 2) Knowledge if the function behaves like a setter or like a getter. A + * setter should set an error status on the surface, a getter does not + * modify the function. + * 3) Knowledge if the function only works for a specific surface type and for + * which one. + * 4) An entry in the tests array using the TEST() macro. It takes as arguments: + * - The function name + * - TRUE if the function modifies the surface, FALSE otherwise + * - the surface type for which the function is valid or -1 if it is valid + * for all surface types. + * + * FIXING FAILURES + * + * The test will dump failures notices into the api-special-cases.log file (when + * it doesn't crash). These should be pretty self-explanatory. Usually it is + * enough to just add a new check to the function it complained about. + */ + +#include "config.h" + +#include +#include + +#include "cairo-test.h" + +#if CAIRO_HAS_PDF_SURFACE +#include +#endif +#if CAIRO_HAS_PS_SURFACE +#include +#endif +#if CAIRO_HAS_QUARTZ_SURFACE +#define Cursor QuartzCursor +#include +#undef Cursor +#endif +#if CAIRO_HAS_SVG_SURFACE +#include +#endif +#if CAIRO_HAS_TEE_SURFACE +#include +#endif +#if CAIRO_HAS_XCB_SURFACE +#include +#endif +#if CAIRO_HAS_XLIB_SURFACE +#define Cursor XCursor +#include +#undef Cursor +#endif + +#define surface_has_type(surface,type) (cairo_surface_get_type (surface) == (type)) + +typedef cairo_test_status_t (* surface_test_func_t) (cairo_surface_t *surface); +typedef cairo_test_status_t (* context_test_func_t) (cairo_t *cr); + +static cairo_test_status_t +test_cairo_reference (cairo_t *cr) +{ + cairo_destroy (cairo_reference (cr)); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_reference_count (cairo_t *cr) +{ + unsigned int refcount = cairo_get_reference_count (cr); + if (refcount > 0) + return CAIRO_TEST_SUCCESS; + /* inert error context have a refcount of 0 */ + return cairo_status (cr) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_set_user_data (cairo_t *cr) +{ + static cairo_user_data_key_t key; + cairo_status_t status; + + status = cairo_set_user_data (cr, &key, &key, NULL); + if (status == CAIRO_STATUS_NO_MEMORY) + return CAIRO_TEST_NO_MEMORY; + else if (status) + return CAIRO_TEST_SUCCESS; + + if (cairo_get_user_data (cr, &key) != &key) + return CAIRO_TEST_ERROR; + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_save (cairo_t *cr) +{ + cairo_save (cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_push_group (cairo_t *cr) +{ + cairo_pattern_t *pattern; + cairo_status_t status; + + cairo_push_group (cr); + pattern = cairo_pop_group (cr); + status = cairo_pattern_status (pattern); + cairo_pattern_destroy (pattern); + + return status == CAIRO_STATUS_SUCCESS || status == cairo_status (cr) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_push_group_with_content (cairo_t *cr) +{ + cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR_ALPHA); + cairo_pop_group_to_source (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_operator (cairo_t *cr) +{ + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_source (cairo_t *cr) +{ + cairo_pattern_t *source = cairo_pattern_create_rgb (0, 0, 0); + cairo_set_source (cr, source); + cairo_pattern_destroy (source); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_source_rgb (cairo_t *cr) +{ + cairo_set_source_rgb (cr, 0, 0, 0); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_source_rgba (cairo_t *cr) +{ + cairo_set_source_rgba (cr, 0, 0, 0, 1); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_source_surface (cairo_t *cr) +{ + cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 1); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_tolerance (cairo_t *cr) +{ + cairo_set_tolerance (cr, 42); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_antialias (cairo_t *cr) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_BEST); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_fill_rule (cairo_t *cr) +{ + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_line_width (cairo_t *cr) +{ + cairo_set_line_width (cr, 42); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_line_cap (cairo_t *cr) +{ + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_line_join (cairo_t *cr) +{ + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_dash (cairo_t *cr) +{ + cairo_set_dash (cr, NULL, 0, 0); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_miter_limit (cairo_t *cr) +{ + cairo_set_miter_limit (cr, 2); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_translate (cairo_t *cr) +{ + cairo_translate (cr, 2, 2); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_scale (cairo_t *cr) +{ + cairo_scale (cr, 2, 2); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_rotate (cairo_t *cr) +{ + cairo_rotate (cr, 2); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_transform (cairo_t *cr) +{ + cairo_matrix_t matrix; + + cairo_matrix_init_translate (&matrix, 1, 1); + cairo_transform (cr, &matrix); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_matrix (cairo_t *cr) +{ + cairo_matrix_t matrix; + + cairo_matrix_init_translate (&matrix, 1, 1); + cairo_set_matrix (cr, &matrix); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_identity_matrix (cairo_t *cr) +{ + cairo_identity_matrix (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_user_to_device (cairo_t *cr) +{ + double x = 42, y = 42; + + cairo_user_to_device (cr, &x, &y); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_user_to_device_distance (cairo_t *cr) +{ + double x = 42, y = 42; + + cairo_user_to_device_distance (cr, &x, &y); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_device_to_user (cairo_t *cr) +{ + double x = 42, y = 42; + + cairo_device_to_user (cr, &x, &y); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_device_to_user_distance (cairo_t *cr) +{ + double x = 42, y = 42; + + cairo_device_to_user_distance (cr, &x, &y); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_new_path (cairo_t *cr) +{ + cairo_new_path (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_move_to (cairo_t *cr) +{ + cairo_move_to (cr, 2, 2); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_new_sub_path (cairo_t *cr) +{ + cairo_new_sub_path (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_line_to (cairo_t *cr) +{ + cairo_line_to (cr, 2, 2); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_curve_to (cairo_t *cr) +{ + cairo_curve_to (cr, 2, 2, 3, 3, 4, 4); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_arc (cairo_t *cr) +{ + cairo_arc (cr, 2, 2, 3, 0, 2 * M_PI); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_arc_negative (cairo_t *cr) +{ + cairo_arc_negative (cr, 2, 2, 3, 0, 2 * M_PI); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_rel_move_to (cairo_t *cr) +{ + cairo_rel_move_to (cr, 2, 2); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_rel_line_to (cairo_t *cr) +{ + cairo_rel_line_to (cr, 2, 2); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_rel_curve_to (cairo_t *cr) +{ + cairo_rel_curve_to (cr, 2, 2, 3, 3, 4, 4); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_rectangle (cairo_t *cr) +{ + cairo_rectangle (cr, 2, 2, 3, 3); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_close_path (cairo_t *cr) +{ + cairo_close_path (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_path_extents (cairo_t *cr) +{ + double x1, y1, x2, y2; + cairo_path_extents (cr, &x1, &y1, &x2, &y2); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_paint (cairo_t *cr) +{ + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_paint_with_alpha (cairo_t *cr) +{ + cairo_paint_with_alpha (cr, 0.5); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_mask (cairo_t *cr) +{ + cairo_pattern_t *pattern; + + pattern = cairo_pattern_create_rgb (0.5, 0.5, 0.5); + cairo_mask (cr, pattern); + + cairo_pattern_destroy (pattern); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_mask_surface (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 1); + cairo_mask_surface (cr, surface, 0, 0); + + cairo_surface_destroy (surface); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_stroke (cairo_t *cr) +{ + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_stroke_preserve (cairo_t *cr) +{ + cairo_stroke_preserve (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_fill (cairo_t *cr) +{ + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_fill_preserve (cairo_t *cr) +{ + cairo_fill_preserve (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_copy_page (cairo_t *cr) +{ + cairo_copy_page (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_show_page (cairo_t *cr) +{ + cairo_show_page (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_in_stroke (cairo_t *cr) +{ + cairo_in_stroke (cr, 1, 1); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_in_fill (cairo_t *cr) +{ + cairo_in_fill (cr, 1, 1); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_in_clip (cairo_t *cr) +{ + cairo_in_clip (cr, 1, 1); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_stroke_extents (cairo_t *cr) +{ + double x1, y1, x2, y2; + cairo_stroke_extents (cr, &x1, &y1, &x2, &y2); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_fill_extents (cairo_t *cr) +{ + double x1, y1, x2, y2; + cairo_fill_extents (cr, &x1, &y1, &x2, &y2); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_reset_clip (cairo_t *cr) +{ + cairo_reset_clip (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_clip (cairo_t *cr) +{ + cairo_clip (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_clip_preserve (cairo_t *cr) +{ + cairo_clip_preserve (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_clip_extents (cairo_t *cr) +{ + double x1, y1, x2, y2; + cairo_clip_extents (cr, &x1, &y1, &x2, &y2); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_copy_clip_rectangle_list (cairo_t *cr) +{ + cairo_rectangle_list_destroy (cairo_copy_clip_rectangle_list (cr)); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_select_font_face (cairo_t *cr) +{ + cairo_select_font_face (cr, "Arial", CAIRO_FONT_SLANT_ITALIC, CAIRO_FONT_WEIGHT_BOLD); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_font_size (cairo_t *cr) +{ + cairo_set_font_size (cr, 42); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_font_matrix (cairo_t *cr) +{ + cairo_matrix_t matrix; + + cairo_matrix_init_translate (&matrix, 1, 1); + cairo_set_font_matrix (cr, &matrix); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_font_matrix (cairo_t *cr) +{ + cairo_matrix_t matrix; + + cairo_get_font_matrix (cr, &matrix); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_font_options (cairo_t *cr) +{ + cairo_font_options_t *opt = cairo_font_options_create (); + cairo_set_font_options (cr, opt); + cairo_font_options_destroy (opt); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_font_options (cairo_t *cr) +{ + cairo_font_options_t *opt = cairo_font_options_create (); + cairo_get_font_options (cr, opt); + cairo_font_options_destroy (opt); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_font_face (cairo_t *cr) +{ + cairo_set_font_face (cr, cairo_get_font_face (cr)); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_set_scaled_font (cairo_t *cr) +{ + cairo_set_scaled_font (cr, cairo_get_scaled_font (cr)); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_show_text (cairo_t *cr) +{ + cairo_show_text (cr, "Cairo"); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_show_glyphs (cairo_t *cr) +{ + cairo_glyph_t glyph; + + glyph.index = 65; + glyph.x = 0; + glyph.y = 0; + + cairo_show_glyphs (cr, &glyph, 1); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_show_text_glyphs (cairo_t *cr) +{ + cairo_glyph_t glyph; + cairo_text_cluster_t cluster; + + glyph.index = 65; + glyph.x = 0; + glyph.y = 0; + + cluster.num_bytes = 1; + cluster.num_glyphs = 1; + + cairo_show_text_glyphs (cr, "a", -1, &glyph, 1, &cluster, 1, 0); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_text_path (cairo_t *cr) +{ + cairo_text_path (cr, "Cairo"); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_glyph_path (cairo_t *cr) +{ + cairo_glyph_t glyph; + + glyph.index = 65; + glyph.x = 0; + glyph.y = 0; + + cairo_glyph_path (cr, &glyph, 1); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_text_extents (cairo_t *cr) +{ + cairo_text_extents_t extents; + + cairo_text_extents (cr, "Cairo", &extents); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_glyph_extents (cairo_t *cr) +{ + cairo_glyph_t glyph; + cairo_text_extents_t extents; + + glyph.index = 65; + glyph.x = 0; + glyph.y = 0; + + cairo_glyph_extents (cr, &glyph, 1, &extents); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_font_extents (cairo_t *cr) +{ + cairo_font_extents_t extents; + + cairo_font_extents (cr, &extents); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_operator (cairo_t *cr) +{ + cairo_get_operator (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_source (cairo_t *cr) +{ + cairo_get_source (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_tolerance (cairo_t *cr) +{ + cairo_get_tolerance (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_antialias (cairo_t *cr) +{ + cairo_get_antialias (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_has_current_point (cairo_t *cr) +{ + cairo_has_current_point (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_current_point (cairo_t *cr) +{ + double x, y; + + cairo_get_current_point (cr, &x, &y); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_fill_rule (cairo_t *cr) +{ + cairo_get_fill_rule (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_line_width (cairo_t *cr) +{ + cairo_get_line_width (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_line_cap (cairo_t *cr) +{ + cairo_get_line_cap (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_line_join (cairo_t *cr) +{ + cairo_get_line_join (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_miter_limit (cairo_t *cr) +{ + cairo_get_miter_limit (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_dash_count (cairo_t *cr) +{ + cairo_get_dash_count (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_dash (cairo_t *cr) +{ + double dashes[42]; + double offset; + + cairo_get_dash (cr, &dashes[0], &offset); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_matrix (cairo_t *cr) +{ + cairo_matrix_t matrix; + + cairo_get_matrix (cr, &matrix); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_target (cairo_t *cr) +{ + cairo_get_target (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_get_group_target (cairo_t *cr) +{ + cairo_get_group_target (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_copy_path (cairo_t *cr) +{ + cairo_path_destroy (cairo_copy_path (cr)); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_copy_path_flat (cairo_t *cr) +{ + cairo_path_destroy (cairo_copy_path_flat (cr)); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_append_path (cairo_t *cr) +{ + cairo_path_data_t data[3]; + cairo_path_t path; + + path.status = CAIRO_STATUS_SUCCESS; + path.data = &data[0]; + path.num_data = ARRAY_LENGTH(data); + + data[0].header.type = CAIRO_PATH_MOVE_TO; + data[0].header.length = 2; + data[1].point.x = 1; + data[1].point.y = 2; + data[2].header.type = CAIRO_PATH_CLOSE_PATH; + data[2].header.length = 1; + + cairo_append_path (cr, &path); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_create_similar (cairo_surface_t *surface) +{ + cairo_surface_t *similar; + + similar = cairo_surface_create_similar (surface, CAIRO_CONTENT_ALPHA, 100, 100); + + cairo_surface_destroy (similar); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_create_for_rectangle (cairo_surface_t *surface) +{ + cairo_surface_t *similar; + + similar = cairo_surface_create_for_rectangle (surface, 1, 1, 8, 8); + + cairo_surface_destroy (similar); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_reference (cairo_surface_t *surface) +{ + cairo_surface_destroy (cairo_surface_reference (surface)); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_finish (cairo_surface_t *surface) +{ + cairo_surface_finish (surface); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_get_device (cairo_surface_t *surface) +{ + /* cairo_device_t *device = */cairo_surface_get_device (surface); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_get_reference_count (cairo_surface_t *surface) +{ + unsigned int refcount = cairo_surface_get_reference_count (surface); + if (refcount > 0) + return CAIRO_TEST_SUCCESS; + /* inert error surfaces have a refcount of 0 */ + return cairo_surface_status (surface) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_surface_status (cairo_surface_t *surface) +{ + cairo_status_t status = cairo_surface_status (surface); + return status < CAIRO_STATUS_LAST_STATUS ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_surface_get_type (cairo_surface_t *surface) +{ + /* cairo_surface_type_t type = */cairo_surface_get_type (surface); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_get_content (cairo_surface_t *surface) +{ + cairo_content_t content = cairo_surface_get_content (surface); + + switch (content) { + case CAIRO_CONTENT_COLOR: + case CAIRO_CONTENT_ALPHA: + case CAIRO_CONTENT_COLOR_ALPHA: + return CAIRO_TEST_SUCCESS; + default: + return CAIRO_TEST_ERROR; + } +} + +static cairo_test_status_t +test_cairo_surface_set_user_data (cairo_surface_t *surface) +{ + static cairo_user_data_key_t key; + cairo_status_t status; + + status = cairo_surface_set_user_data (surface, &key, &key, NULL); + if (status == CAIRO_STATUS_NO_MEMORY) + return CAIRO_TEST_NO_MEMORY; + else if (status) + return CAIRO_TEST_SUCCESS; + + if (cairo_surface_get_user_data (surface, &key) != &key) + return CAIRO_TEST_ERROR; + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_set_mime_data (cairo_surface_t *surface) +{ + const char *mimetype = "text/x-uri"; + const char *data = "https://www.cairographics.org"; + cairo_status_t status; + + status = cairo_surface_set_mime_data (surface, + mimetype, + (const unsigned char *) data, + strlen (data), + NULL, NULL); + return status ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_surface_get_mime_data (cairo_surface_t *surface) +{ + const char *mimetype = "text/x-uri"; + const unsigned char *data; + unsigned long length; + + cairo_surface_get_mime_data (surface, mimetype, &data, &length); + return data == NULL && length == 0 ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_surface_get_font_options (cairo_surface_t *surface) +{ + cairo_font_options_t *options; + cairo_status_t status; + + options = cairo_font_options_create (); + if (likely (!cairo_font_options_status (options))) + cairo_surface_get_font_options (surface, options); + status = cairo_font_options_status (options); + cairo_font_options_destroy (options); + return status ? CAIRO_TEST_ERROR : CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_flush (cairo_surface_t *surface) +{ + cairo_surface_flush (surface); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_mark_dirty (cairo_surface_t *surface) +{ + cairo_surface_mark_dirty (surface); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_mark_dirty_rectangle (cairo_surface_t *surface) +{ + cairo_surface_mark_dirty_rectangle (surface, 1, 1, 8, 8); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_set_device_offset (cairo_surface_t *surface) +{ + cairo_surface_set_device_offset (surface, 5, 5); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_get_device_offset (cairo_surface_t *surface) +{ + double x, y; + + cairo_surface_get_device_offset (surface, &x, &y); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_set_fallback_resolution (cairo_surface_t *surface) +{ + cairo_surface_set_fallback_resolution (surface, 42, 42); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_get_fallback_resolution (cairo_surface_t *surface) +{ + double x, y; + + cairo_surface_get_fallback_resolution (surface, &x, &y); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_copy_page (cairo_surface_t *surface) +{ + cairo_surface_copy_page (surface); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_show_page (cairo_surface_t *surface) +{ + cairo_surface_show_page (surface); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_surface_has_show_text_glyphs (cairo_surface_t *surface) +{ + cairo_surface_has_show_text_glyphs (surface); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_image_surface_get_data (cairo_surface_t *surface) +{ + unsigned char *data = cairo_image_surface_get_data (surface); + return data == NULL || surface_has_type (surface, CAIRO_SURFACE_TYPE_IMAGE) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_image_surface_get_format (cairo_surface_t *surface) +{ + cairo_format_t format = cairo_image_surface_get_format (surface); + return format == CAIRO_FORMAT_INVALID || surface_has_type (surface, CAIRO_SURFACE_TYPE_IMAGE) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_image_surface_get_width (cairo_surface_t *surface) +{ + unsigned int width = cairo_image_surface_get_width (surface); + return width == 0 || surface_has_type (surface, CAIRO_SURFACE_TYPE_IMAGE) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_image_surface_get_height (cairo_surface_t *surface) +{ + unsigned int height = cairo_image_surface_get_height (surface); + return height == 0 || surface_has_type (surface, CAIRO_SURFACE_TYPE_IMAGE) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_image_surface_get_stride (cairo_surface_t *surface) +{ + unsigned int stride = cairo_image_surface_get_stride (surface); + return stride == 0 || surface_has_type (surface, CAIRO_SURFACE_TYPE_IMAGE) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +#if CAIRO_HAS_PNG_FUNCTIONS + +static cairo_test_status_t +test_cairo_surface_write_to_png (cairo_surface_t *surface) +{ + cairo_status_t status; + + status = cairo_surface_write_to_png (surface, "/this/file/will/definitely/not/exist.png"); + + return status ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_status_t +write_func_that_always_fails (void *closure, const unsigned char *data, unsigned int length) +{ + return CAIRO_STATUS_WRITE_ERROR; +} + +static cairo_test_status_t +test_cairo_surface_write_to_png_stream (cairo_surface_t *surface) +{ + cairo_status_t status; + + status = cairo_surface_write_to_png_stream (surface, + write_func_that_always_fails, + NULL); + + return status && status != CAIRO_STATUS_WRITE_ERROR ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +#endif /* CAIRO_HAS_PNG_FUNCTIONS */ + +static cairo_test_status_t +test_cairo_recording_surface_ink_extents (cairo_surface_t *surface) +{ + double x, y, w, h; + + cairo_recording_surface_ink_extents (surface, &x, &y, &w, &h); + return x == 0 && y == 0 && w == 0 && h == 0 ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +#if CAIRO_HAS_TEE_SURFACE + +static cairo_test_status_t +test_cairo_tee_surface_add (cairo_surface_t *surface) +{ + cairo_surface_t *image = cairo_image_surface_create (CAIRO_FORMAT_A8, 10, 10); + + cairo_tee_surface_add (surface, image); + cairo_surface_destroy (image); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_tee_surface_remove (cairo_surface_t *surface) +{ + cairo_surface_t *image = cairo_image_surface_create (CAIRO_FORMAT_A8, 10, 10); + + cairo_tee_surface_remove (surface, image); + cairo_surface_destroy (image); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_tee_surface_index (cairo_surface_t *surface) +{ + cairo_surface_t *master; + cairo_status_t status; + + master = cairo_tee_surface_index (surface, 0); + status = cairo_surface_status (master); + cairo_surface_destroy (master); + return status ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +#endif /* CAIRO_HAS_TEE_SURFACE */ + +#if CAIRO_HAS_PDF_SURFACE + +static cairo_test_status_t +test_cairo_pdf_surface_restrict_to_version (cairo_surface_t *surface) +{ + cairo_pdf_surface_restrict_to_version (surface, CAIRO_PDF_VERSION_1_4); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_pdf_surface_set_size (cairo_surface_t *surface) +{ + cairo_pdf_surface_set_size (surface, 5, 5); + return CAIRO_TEST_SUCCESS; +} + +#endif /* CAIRO_HAS_PDF_SURFACE */ + +#if CAIRO_HAS_PS_SURFACE + +static cairo_test_status_t +test_cairo_ps_surface_restrict_to_level (cairo_surface_t *surface) +{ + cairo_ps_surface_restrict_to_level (surface, CAIRO_PS_LEVEL_2); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_ps_surface_set_eps (cairo_surface_t *surface) +{ + cairo_ps_surface_set_eps (surface, TRUE); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_ps_surface_get_eps (cairo_surface_t *surface) +{ + cairo_bool_t eps = cairo_ps_surface_get_eps (surface); + return eps ? CAIRO_TEST_ERROR : CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_ps_surface_set_size (cairo_surface_t *surface) +{ + cairo_ps_surface_set_size (surface, 5, 5); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_ps_surface_dsc_comment (cairo_surface_t *surface) +{ + cairo_ps_surface_dsc_comment (surface, "54, 74, 90, 2010"); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_ps_surface_dsc_begin_setup (cairo_surface_t *surface) +{ + cairo_ps_surface_dsc_begin_setup (surface); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_ps_surface_dsc_begin_page_setup (cairo_surface_t *surface) +{ + cairo_ps_surface_dsc_begin_page_setup (surface); + return CAIRO_TEST_SUCCESS; +} + +#endif /* CAIRO_HAS_PS_SURFACE */ + +#if CAIRO_HAS_QUARTZ_SURFACE + +static cairo_test_status_t +test_cairo_quartz_surface_get_cg_context (cairo_surface_t *surface) +{ + CGContextRef context = cairo_quartz_surface_get_cg_context (surface); + return context == NULL || surface_has_type (surface, CAIRO_SURFACE_TYPE_QUARTZ) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +#endif /* CAIRO_HAS_QUARTZ_SURFACE */ + +#if CAIRO_HAS_SVG_SURFACE + +static cairo_test_status_t +test_cairo_svg_surface_restrict_to_version (cairo_surface_t *surface) +{ + cairo_svg_surface_restrict_to_version (surface, CAIRO_SVG_VERSION_1_1); + return CAIRO_TEST_SUCCESS; +} + +#endif /* CAIRO_HAS_SVG_SURFACE */ + +#if CAIRO_HAS_XCB_SURFACE + +static cairo_test_status_t +test_cairo_xcb_surface_set_size (cairo_surface_t *surface) +{ + cairo_xcb_surface_set_size (surface, 5, 5); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_xcb_surface_set_drawable (cairo_surface_t *surface) +{ + cairo_xcb_surface_set_drawable (surface, 0, 5, 5); + return CAIRO_TEST_SUCCESS; +} + +#endif + +#if CAIRO_HAS_XLIB_SURFACE + +static cairo_test_status_t +test_cairo_xlib_surface_set_size (cairo_surface_t *surface) +{ + cairo_xlib_surface_set_size (surface, 5, 5); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_xlib_surface_set_drawable (cairo_surface_t *surface) +{ + cairo_xlib_surface_set_drawable (surface, 0, 5, 5); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_cairo_xlib_surface_get_display (cairo_surface_t *surface) +{ + Display *display = cairo_xlib_surface_get_display (surface); + return display == NULL || surface_has_type (surface, CAIRO_SURFACE_TYPE_XLIB) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_xlib_surface_get_screen (cairo_surface_t *surface) +{ + Screen *screen = cairo_xlib_surface_get_screen (surface); + return screen == NULL || surface_has_type (surface, CAIRO_SURFACE_TYPE_XLIB) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_xlib_surface_get_visual (cairo_surface_t *surface) +{ + Visual *visual = cairo_xlib_surface_get_visual (surface); + return visual == NULL || surface_has_type (surface, CAIRO_SURFACE_TYPE_XLIB) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_xlib_surface_get_drawable (cairo_surface_t *surface) +{ + Drawable drawable = cairo_xlib_surface_get_drawable (surface); + return drawable == 0 || surface_has_type (surface, CAIRO_SURFACE_TYPE_XLIB) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_xlib_surface_get_depth (cairo_surface_t *surface) +{ + int depth = cairo_xlib_surface_get_depth (surface); + return depth == 0 || surface_has_type (surface, CAIRO_SURFACE_TYPE_XLIB) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_xlib_surface_get_width (cairo_surface_t *surface) +{ + int width = cairo_xlib_surface_get_width (surface); + return width == 0 || surface_has_type (surface, CAIRO_SURFACE_TYPE_XLIB) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +static cairo_test_status_t +test_cairo_xlib_surface_get_height (cairo_surface_t *surface) +{ + int height = cairo_xlib_surface_get_height (surface); + return height == 0 || surface_has_type (surface, CAIRO_SURFACE_TYPE_XLIB) ? CAIRO_TEST_SUCCESS : CAIRO_TEST_ERROR; +} + +#endif + +#define TEST(name) { #name, test_ ## name } + +struct { + const char *name; + context_test_func_t func; +} context_tests[] = { + TEST (cairo_reference), + TEST (cairo_get_reference_count), + TEST (cairo_set_user_data), + TEST (cairo_save), + TEST (cairo_push_group), + TEST (cairo_push_group_with_content), + TEST (cairo_set_operator), + TEST (cairo_set_source), + TEST (cairo_set_source_rgb), + TEST (cairo_set_source_rgba), + TEST (cairo_set_source_surface), + TEST (cairo_set_tolerance), + TEST (cairo_set_antialias), + TEST (cairo_set_fill_rule), + TEST (cairo_set_line_width), + TEST (cairo_set_line_cap), + TEST (cairo_set_line_join), + TEST (cairo_set_dash), + TEST (cairo_set_miter_limit), + TEST (cairo_translate), + TEST (cairo_scale), + TEST (cairo_rotate), + TEST (cairo_transform), + TEST (cairo_set_matrix), + TEST (cairo_identity_matrix), + TEST (cairo_user_to_device), + TEST (cairo_user_to_device_distance), + TEST (cairo_device_to_user), + TEST (cairo_device_to_user_distance), + TEST (cairo_new_path), + TEST (cairo_move_to), + TEST (cairo_new_sub_path), + TEST (cairo_line_to), + TEST (cairo_curve_to), + TEST (cairo_arc), + TEST (cairo_arc_negative), + TEST (cairo_rel_move_to), + TEST (cairo_rel_line_to), + TEST (cairo_rel_curve_to), + TEST (cairo_rectangle), + TEST (cairo_close_path), + TEST (cairo_path_extents), + TEST (cairo_paint), + TEST (cairo_paint_with_alpha), + TEST (cairo_mask), + TEST (cairo_mask_surface), + TEST (cairo_stroke), + TEST (cairo_stroke_preserve), + TEST (cairo_fill), + TEST (cairo_fill_preserve), + TEST (cairo_copy_page), + TEST (cairo_show_page), + TEST (cairo_in_stroke), + TEST (cairo_in_fill), + TEST (cairo_in_clip), + TEST (cairo_stroke_extents), + TEST (cairo_fill_extents), + TEST (cairo_reset_clip), + TEST (cairo_clip), + TEST (cairo_clip_preserve), + TEST (cairo_clip_extents), + TEST (cairo_copy_clip_rectangle_list), + TEST (cairo_select_font_face), + TEST (cairo_set_font_size), + TEST (cairo_set_font_matrix), + TEST (cairo_get_font_matrix), + TEST (cairo_set_font_options), + TEST (cairo_get_font_options), + TEST (cairo_set_font_face), + TEST (cairo_set_scaled_font), + TEST (cairo_show_text), + TEST (cairo_show_glyphs), + TEST (cairo_show_text_glyphs), + TEST (cairo_text_path), + TEST (cairo_glyph_path), + TEST (cairo_text_extents), + TEST (cairo_glyph_extents), + TEST (cairo_font_extents), + TEST (cairo_get_operator), + TEST (cairo_get_source), + TEST (cairo_get_tolerance), + TEST (cairo_get_antialias), + TEST (cairo_has_current_point), + TEST (cairo_get_current_point), + TEST (cairo_get_fill_rule), + TEST (cairo_get_line_width), + TEST (cairo_get_line_cap), + TEST (cairo_get_line_join), + TEST (cairo_get_miter_limit), + TEST (cairo_get_dash_count), + TEST (cairo_get_dash), + TEST (cairo_get_matrix), + TEST (cairo_get_target), + TEST (cairo_get_group_target), + TEST (cairo_copy_path), + TEST (cairo_copy_path_flat), + TEST (cairo_append_path), +}; + +#undef TEST + +#define TEST(name, surface_type, sets_status) { #name, test_ ## name, surface_type, sets_status } + +struct { + const char *name; + surface_test_func_t func; + int surface_type; /* cairo_surface_type_t or -1 */ + cairo_bool_t modifies_surface; +} surface_tests[] = { + TEST (cairo_surface_create_similar, -1, FALSE), + TEST (cairo_surface_create_for_rectangle, -1, FALSE), + TEST (cairo_surface_reference, -1, FALSE), + TEST (cairo_surface_finish, -1, TRUE), + TEST (cairo_surface_get_device, -1, FALSE), + TEST (cairo_surface_get_reference_count, -1, FALSE), + TEST (cairo_surface_status, -1, FALSE), + TEST (cairo_surface_get_type, -1, FALSE), + TEST (cairo_surface_get_content, -1, FALSE), + TEST (cairo_surface_set_user_data, -1, FALSE), + TEST (cairo_surface_set_mime_data, -1, TRUE), + TEST (cairo_surface_get_mime_data, -1, FALSE), + TEST (cairo_surface_get_font_options, -1, FALSE), + TEST (cairo_surface_flush, -1, TRUE), + TEST (cairo_surface_mark_dirty, -1, TRUE), + TEST (cairo_surface_mark_dirty_rectangle, -1, TRUE), + TEST (cairo_surface_set_device_offset, -1, TRUE), + TEST (cairo_surface_get_device_offset, -1, FALSE), + TEST (cairo_surface_set_fallback_resolution, -1, TRUE), + TEST (cairo_surface_get_fallback_resolution, -1, FALSE), + TEST (cairo_surface_copy_page, -1, TRUE), + TEST (cairo_surface_show_page, -1, TRUE), + TEST (cairo_surface_has_show_text_glyphs, -1, FALSE), + TEST (cairo_image_surface_get_data, CAIRO_SURFACE_TYPE_IMAGE, FALSE), + TEST (cairo_image_surface_get_format, CAIRO_SURFACE_TYPE_IMAGE, FALSE), + TEST (cairo_image_surface_get_width, CAIRO_SURFACE_TYPE_IMAGE, FALSE), + TEST (cairo_image_surface_get_height, CAIRO_SURFACE_TYPE_IMAGE, FALSE), + TEST (cairo_image_surface_get_stride, CAIRO_SURFACE_TYPE_IMAGE, FALSE), +#if CAIRO_HAS_PNG_FUNCTIONS + TEST (cairo_surface_write_to_png, -1, FALSE), + TEST (cairo_surface_write_to_png_stream, -1, FALSE), +#endif + TEST (cairo_recording_surface_ink_extents, CAIRO_SURFACE_TYPE_RECORDING, FALSE), +#if CAIRO_HAS_TEE_SURFACE + TEST (cairo_tee_surface_add, CAIRO_SURFACE_TYPE_TEE, TRUE), + TEST (cairo_tee_surface_remove, CAIRO_SURFACE_TYPE_TEE, TRUE), + TEST (cairo_tee_surface_index, CAIRO_SURFACE_TYPE_TEE, FALSE), +#endif +#if CAIRO_HAS_PDF_SURFACE + TEST (cairo_pdf_surface_restrict_to_version, CAIRO_SURFACE_TYPE_PDF, TRUE), + TEST (cairo_pdf_surface_set_size, CAIRO_SURFACE_TYPE_PDF, TRUE), +#endif +#if CAIRO_HAS_PS_SURFACE + TEST (cairo_ps_surface_restrict_to_level, CAIRO_SURFACE_TYPE_PS, TRUE), + TEST (cairo_ps_surface_set_eps, CAIRO_SURFACE_TYPE_PS, TRUE), + TEST (cairo_ps_surface_get_eps, CAIRO_SURFACE_TYPE_PS, FALSE), + TEST (cairo_ps_surface_set_size, CAIRO_SURFACE_TYPE_PS, TRUE), + TEST (cairo_ps_surface_dsc_comment, CAIRO_SURFACE_TYPE_PS, TRUE), + TEST (cairo_ps_surface_dsc_begin_setup, CAIRO_SURFACE_TYPE_PS, TRUE), + TEST (cairo_ps_surface_dsc_begin_page_setup, CAIRO_SURFACE_TYPE_PS, TRUE), +#endif +#if CAIRO_HAS_QUARTZ_SURFACE + TEST (cairo_quartz_surface_get_cg_context, CAIRO_SURFACE_TYPE_QUARTZ, FALSE), +#endif +#if CAIRO_HAS_SVG_SURFACE + TEST (cairo_svg_surface_restrict_to_version, CAIRO_SURFACE_TYPE_SVG, TRUE), +#endif +#if CAIRO_HAS_XCB_SURFACE + TEST (cairo_xcb_surface_set_size, CAIRO_SURFACE_TYPE_XCB, TRUE), + TEST (cairo_xcb_surface_set_drawable, CAIRO_SURFACE_TYPE_XCB, TRUE), +#endif +#if CAIRO_HAS_XLIB_SURFACE + TEST (cairo_xlib_surface_set_size, CAIRO_SURFACE_TYPE_XLIB, TRUE), + TEST (cairo_xlib_surface_set_drawable, CAIRO_SURFACE_TYPE_XLIB, TRUE), + TEST (cairo_xlib_surface_get_display, CAIRO_SURFACE_TYPE_XLIB, FALSE), + TEST (cairo_xlib_surface_get_drawable, CAIRO_SURFACE_TYPE_XLIB, FALSE), + TEST (cairo_xlib_surface_get_screen, CAIRO_SURFACE_TYPE_XLIB, FALSE), + TEST (cairo_xlib_surface_get_visual, CAIRO_SURFACE_TYPE_XLIB, FALSE), + TEST (cairo_xlib_surface_get_depth, CAIRO_SURFACE_TYPE_XLIB, FALSE), + TEST (cairo_xlib_surface_get_width, CAIRO_SURFACE_TYPE_XLIB, FALSE), + TEST (cairo_xlib_surface_get_height, CAIRO_SURFACE_TYPE_XLIB, FALSE), +#endif +}; + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_surface_t *surface; + cairo_t *cr; + cairo_test_status_t test_status; + cairo_status_t status_before, status_after; + unsigned int i; + + /* Test an error surface */ + for (i = 0; i < ARRAY_LENGTH (surface_tests); i++) { + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, INT_MAX, INT_MAX); + status_before = cairo_surface_status (surface); + assert (status_before); + + test_status = surface_tests[i].func (surface); + + status_after = cairo_surface_status (surface); + cairo_surface_destroy (surface); + + if (test_status != CAIRO_TEST_SUCCESS) { + cairo_test_log (ctx, + "Failed test %s with %d\n", + surface_tests[i].name, (int) test_status); + return test_status; + } + + if (status_before != status_after) { + cairo_test_log (ctx, + "Failed test %s: Modified surface status from %u (%s) to %u (%s)\n", + surface_tests[i].name, + status_before, cairo_status_to_string (status_before), + status_after, cairo_status_to_string (status_after)); + return CAIRO_TEST_ERROR; + } + } + + /* Test an error context */ + for (i = 0; i < ARRAY_LENGTH (context_tests); i++) { + cr = cairo_create (NULL); + status_before = cairo_status (cr); + assert (status_before); + + test_status = context_tests[i].func (cr); + + status_after = cairo_status (cr); + cairo_destroy (cr); + + if (test_status != CAIRO_TEST_SUCCESS) { + cairo_test_log (ctx, + "Failed test %s with %d\n", + context_tests[i].name, (int) test_status); + return test_status; + } + + if (status_before != status_after) { + cairo_test_log (ctx, + "Failed test %s: Modified context status from %u (%s) to %u (%s)\n", + context_tests[i].name, + status_before, cairo_status_to_string (status_before), + status_after, cairo_status_to_string (status_after)); + return CAIRO_TEST_ERROR; + } + } + + /* Test a context for an error surface */ + for (i = 0; i < ARRAY_LENGTH (context_tests); i++) { + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, INT_MAX, INT_MAX); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + status_before = cairo_status (cr); + assert (status_before); + + test_status = context_tests[i].func (cr); + + status_after = cairo_status (cr); + cairo_destroy (cr); + + if (test_status != CAIRO_TEST_SUCCESS) { + cairo_test_log (ctx, + "Failed test %s with %d\n", + context_tests[i].name, (int) test_status); + return test_status; + } + + if (status_before != status_after) { + cairo_test_log (ctx, + "Failed test %s: Modified context status from %u (%s) to %u (%s)\n", + context_tests[i].name, + status_before, cairo_status_to_string (status_before), + status_after, cairo_status_to_string (status_after)); + return CAIRO_TEST_ERROR; + } + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +test_context (const cairo_test_context_t *ctx, cairo_t *cr, const char *name, unsigned int i) +{ + cairo_test_status_t test_status; + cairo_status_t status_before, status_after; + + /* Make sure that there is a current point */ + cairo_move_to (cr, 0, 0); + + status_before = cairo_status (cr); + test_status = context_tests[i].func (cr); + status_after = cairo_status (cr); + + if (test_status != CAIRO_TEST_SUCCESS) { + cairo_test_log (ctx, + "Failed test %s on %s with %d\n", + context_tests[i].name, name, (int) test_status); + return test_status; + } + + if (status_after != CAIRO_STATUS_SURFACE_FINISHED && status_before != status_after) { + cairo_test_log (ctx, + "Failed test %s on %s: Modified context status from %u (%s) to %u (%s)\n", + context_tests[i].name, name, + status_before, cairo_status_to_string (status_before), + status_after, cairo_status_to_string (status_after)); + return CAIRO_TEST_ERROR; + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *similar, *target; + cairo_test_status_t test_status; + cairo_status_t status; + cairo_t *cr2; + unsigned int i; + + target = cairo_get_target (cr); + + /* Test a finished similar surface */ + for (i = 0; i < ARRAY_LENGTH (surface_tests); i++) { + similar = cairo_surface_create_similar (target, + cairo_surface_get_content (target), + 10, 10); + cairo_surface_finish (similar); + test_status = surface_tests[i].func (similar); + status = cairo_surface_status (similar); + cairo_surface_destroy (similar); + + if (test_status != CAIRO_TEST_SUCCESS) { + cairo_test_log (ctx, + "Failed test %s with %d\n", + surface_tests[i].name, (int) test_status); + return test_status; + } + + if (surface_tests[i].modifies_surface && + strcmp (surface_tests[i].name, "cairo_surface_finish") && + strcmp (surface_tests[i].name, "cairo_surface_flush") && + status != CAIRO_STATUS_SURFACE_FINISHED) { + cairo_test_log (ctx, + "Failed test %s: Finished surface not set into error state\n", + surface_tests[i].name); + return CAIRO_TEST_ERROR; + } + } + + /* Test a context for a finished similar surface */ + for (i = 0; i < ARRAY_LENGTH (context_tests); i++) { + similar = cairo_surface_create_similar (target, + cairo_surface_get_content (target), + 10, 10); + cairo_surface_finish (similar); + cr2 = cairo_create (similar); + test_status = test_context (ctx, cr2, "finished surface", i); + cairo_surface_destroy (similar); + cairo_destroy (cr2); + + if (test_status != CAIRO_TEST_SUCCESS) + return test_status; + } + + /* Test a context for a similar surface finished later */ + for (i = 0; i < ARRAY_LENGTH (context_tests); i++) { + similar = cairo_surface_create_similar (target, + cairo_surface_get_content (target), + 10, 10); + cr2 = cairo_create (similar); + cairo_surface_finish (similar); + test_status = test_context (ctx, cr2, "finished surface after create", i); + cairo_surface_destroy (similar); + cairo_destroy (cr2); + + if (test_status != CAIRO_TEST_SUCCESS) + return test_status; + } + + /* Test a context for a similar surface finished later with a path */ + for (i = 0; i < ARRAY_LENGTH (context_tests); i++) { + similar = cairo_surface_create_similar (target, + cairo_surface_get_content (target), + 10, 10); + cr2 = cairo_create (similar); + cairo_rectangle (cr2, 2, 2, 4, 4); + cairo_surface_finish (similar); + test_status = test_context (ctx, cr2, "finished surface with path", i); + cairo_surface_destroy (similar); + cairo_destroy (cr2); + + if (test_status != CAIRO_TEST_SUCCESS) + return test_status; + } + + /* Test a normal surface for functions that have the wrong type */ + for (i = 0; i < ARRAY_LENGTH (surface_tests); i++) { + cairo_status_t desired_status; + + if (surface_tests[i].surface_type == -1) + continue; + similar = cairo_surface_create_similar (target, + cairo_surface_get_content (target), + 10, 10); + if (cairo_surface_get_type (similar) == (cairo_surface_type_t) surface_tests[i].surface_type) { + cairo_surface_destroy (similar); + continue; + } + + test_status = surface_tests[i].func (similar); + status = cairo_surface_status (similar); + cairo_surface_destroy (similar); + + if (test_status != CAIRO_TEST_SUCCESS) { + cairo_test_log (ctx, + "Failed test %s with %d\n", + surface_tests[i].name, (int) test_status); + return test_status; + } + + desired_status = surface_tests[i].modifies_surface ? CAIRO_STATUS_SURFACE_TYPE_MISMATCH : CAIRO_STATUS_SUCCESS; + if (status != desired_status) { + cairo_test_log (ctx, + "Failed test %s: Surface status should be %u (%s), but is %u (%s)\n", + surface_tests[i].name, + desired_status, cairo_status_to_string (desired_status), + status, cairo_status_to_string (status)); + return CAIRO_TEST_ERROR; + } + } + + /* 565-compatible gray background */ + cairo_set_source_rgb (cr, 0.51613, 0.55555, 0.51613); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (api_special_cases, + "Check surface functions properly handle wrong surface arguments", + "api", /* keywords */ + NULL, /* requirements */ + 10, 10, + preamble, draw) diff --git a/local/recipes/libs/cairo/source/test/arc-direction.c b/local/recipes/libs/cairo/source/test/arc-direction.c new file mode 100644 index 0000000000..92c1a8d367 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/arc-direction.c @@ -0,0 +1,105 @@ +/* + * Copyright © 2012 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE (2 * 20) +#define PAD (2) + +static cairo_test_status_t +draw_arcs (cairo_t *cr) +{ + double start = M_PI/12, stop = 2*start; + + cairo_move_to (cr, SIZE/2, SIZE/2); + cairo_arc (cr, SIZE/2, SIZE/2, SIZE/2, start, stop); + cairo_fill (cr); + + cairo_translate (cr, SIZE+PAD, 0); + cairo_move_to (cr, SIZE/2, SIZE/2); + cairo_arc (cr, SIZE/2, SIZE/2, SIZE/2, 2*M_PI-stop, 2*M_PI-start); + cairo_fill (cr); + + cairo_translate (cr, 0, SIZE+PAD); + cairo_move_to (cr, SIZE/2, SIZE/2); + cairo_arc_negative (cr, SIZE/2, SIZE/2, SIZE/2, 2*M_PI-stop, 2*M_PI-start); + cairo_fill (cr); + + cairo_translate (cr, -SIZE-PAD, 0); + cairo_move_to (cr, SIZE/2, SIZE/2); + cairo_arc_negative (cr, SIZE/2, SIZE/2, SIZE/2, start, stop); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_save (cr); + cairo_translate (cr, PAD, PAD); + draw_arcs(cr); + cairo_restore (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_translate (cr, 2*SIZE+3*PAD, 0); + cairo_save (cr); + cairo_translate (cr, 2*SIZE+2*PAD, PAD); + cairo_scale (cr, -1, 1); + draw_arcs(cr); + cairo_restore (cr); + + cairo_set_source_rgb (cr, 1, 0, 1); + cairo_translate (cr, 0, 2*SIZE+3*PAD); + cairo_save (cr); + cairo_translate (cr, 2*SIZE+2*PAD, 2*SIZE+2*PAD); + cairo_scale (cr, -1, -1); + draw_arcs(cr); + cairo_restore (cr); + + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_translate (cr, -(2*SIZE+3*PAD), 0); + cairo_save (cr); + cairo_translate (cr, PAD, 2*SIZE+2*PAD); + cairo_scale (cr, 1, -1); + draw_arcs(cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (arc_direction, + "Test drawing positive/negative arcs", + "arc, fill", /* keywords */ + NULL, /* requirements */ + 2*(3*PAD + 2*SIZE), 2*(3*PAD + 2*SIZE), + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/arc-infinite-loop.c b/local/recipes/libs/cairo/source/test/arc-infinite-loop.c new file mode 100644 index 0000000000..8b469eacff --- /dev/null +++ b/local/recipes/libs/cairo/source/test/arc-infinite-loop.c @@ -0,0 +1,61 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2010 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" +#include + +#define SIZE 8 + +/* + cairo_arc can hang in an infinite loop if given huge (so big that + adding/subtracting 4*M_PI to them doesn't change the value because + of floating point rounding). + + The purpose of this test is to check that cairo doesn't hang or crash. +*/ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* Check if the code that guarantees start <= end hangs */ + cairo_arc (cr, 0, 0, 1, 1024 / DBL_EPSILON * M_PI, 0); + + /* Check if the code that handles huge angles hangs */ + cairo_arc (cr, 0, 0, 1, 0, 1024 / DBL_EPSILON * M_PI); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (arc_infinite_loop, + "Test cairo_arc with huge angles", + "arc", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/arc-looping-dash.c b/local/recipes/libs/cairo/source/test/arc-looping-dash.c new file mode 100644 index 0000000000..ff5556a548 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/arc-looping-dash.c @@ -0,0 +1,79 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2010 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +#define SIZE 32 + +/* + When cairo_arc is used to draw an arc of more than 2pi radians + (i.e. a circle "looping over itself"), various different behaviors + are possible: + + - draw exactly a circle (an arc of 2pi radians) + + - draw an arc such that the current point is the expected one and + that does at least a complete circle (an arc of [2pi, 4pi) + radians) + + - draw an arc with the original number of loops + + This test produces different results for each of these three cases. +*/ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double dashes[] = { 0.3, 7 }; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_save (cr); + + cairo_translate (cr, SIZE * .5, SIZE * .5); + cairo_scale (cr, SIZE * 3 / 8., SIZE * 3 / 8.); + + cairo_arc (cr, 0, 0, 1, 0, 11 * M_PI); + + cairo_set_line_width (cr, 8. / SIZE); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_dash (cr, dashes, 2, 0); + cairo_stroke (cr); + + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (arc_looping_dash, + "Test cairo_arc for angles describing more than a complete circle", + "arc", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/big-empty-box.c b/local/recipes/libs/cairo/source/test/big-empty-box.c new file mode 100644 index 0000000000..4ea91a1ba2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/big-empty-box.c @@ -0,0 +1,64 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +/* + * The mystery of the disappearing box, similar to big-little-box. + * + * The issue is that we failed to tighten the initial approximated bounds + * after tessellating the path. + */ + +#include "cairo-test.h" + +#define SIZE 60 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 0, 1); + cairo_paint (cr); + + /* Set an unbounded operator so that we can see how accurate the bounded + * extents were. + */ + cairo_set_operator (cr, CAIRO_OPERATOR_IN); + cairo_set_source_rgb (cr, 1, 1, 1); + + /* Wind several boxes together that reduce to nothing */ + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (big_empty_box, + "Tests that we tighten the bounds after tessellation.", + "fill", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/big-empty-triangle.c b/local/recipes/libs/cairo/source/test/big-empty-triangle.c new file mode 100644 index 0000000000..4c02c87a5b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/big-empty-triangle.c @@ -0,0 +1,75 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +/* + * A variation on + * + * https://bugzilla.mozilla.org/show_bug.cgi?id=668921 + * + * The issue is that we failed to tighten the initial approximated bounds + * after tessellating the path. + */ + +#include "cairo-test.h" + +#define SIZE 60 + +static void +triangle (cairo_t *cr, double x, double y, double h) +{ + cairo_move_to (cr, x, y); + cairo_line_to (cr, x+h/2, y+h); + cairo_line_to (cr, x+h, y); + cairo_close_path (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 0, 1); + cairo_paint (cr); + + /* Set an unbounded operator so that we can see how accurate the bounded + * extents were. + */ + cairo_set_operator (cr, CAIRO_OPERATOR_IN); + cairo_set_source_rgb (cr, 1, 1, 1); + + /* Wind several triangles together that reduce to nothing */ + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + triangle (cr, 0, 0, SIZE); + triangle (cr, 0, 0, SIZE); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (big_empty_triangle, + "Tests that we tighten the bounds after tessellation.", + "fill", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/big-line.c b/local/recipes/libs/cairo/source/test/big-line.c new file mode 100644 index 0000000000..6260fba126 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/big-line.c @@ -0,0 +1,62 @@ +/* + * Copyright © 2008 Novell, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Novell, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Novell, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * NOVELL, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL NOVELL, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Larry Ewing + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 1, 1, 0); + cairo_move_to (cr, 50, 50); + cairo_rel_line_to (cr, 50000, 50000); + cairo_stroke (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_move_to (cr, 50, 50); + cairo_rel_line_to (cr, -50000, 50000); + cairo_stroke (cr); + + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_move_to (cr, 50, 50); + cairo_rel_line_to (cr, 50000, -50000); + cairo_stroke (cr); + + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_move_to (cr, 50, 50); + cairo_rel_line_to (cr, -50000, -50000); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (big_line, + "Test drawing of simple lines with positive and negative coordinates > 2^16", + "stroke, line", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/big-little-box.c b/local/recipes/libs/cairo/source/test/big-little-box.c new file mode 100644 index 0000000000..1787ee539a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/big-little-box.c @@ -0,0 +1,69 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +/* + * This attempts to exercise the bug found in + * + * https://bugzilla.mozilla.org/show_bug.cgi?id=668921 + * + * and also identified by Taekyun Kim. + * + * The issue is that we failed to tighten the initial approximated bounds + * after tessellating the path. + */ + +#include "cairo-test.h" + +#define SIZE 60 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 0, 1); + cairo_paint (cr); + + /* Set an unbounded operator so that we can see how accurate the bounded + * extents were. + */ + cairo_set_operator (cr, CAIRO_OPERATOR_IN); + cairo_set_source_rgb (cr, 1, 1, 1); + + /* Wind several boxes together that reduce to just one */ + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_rectangle (cr, SIZE/2 - 20, SIZE/2 - 20, 40, 40); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (big_little_box, + "Tests that we tighten the bounds after tessellation.", + "fill", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/big-little-triangle.c b/local/recipes/libs/cairo/source/test/big-little-triangle.c new file mode 100644 index 0000000000..27eb2325e7 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/big-little-triangle.c @@ -0,0 +1,76 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +/* + * A variation on + * + * https://bugzilla.mozilla.org/show_bug.cgi?id=668921 + * + * The issue is that we failed to tighten the initial approximated bounds + * after tessellating the path. + */ + +#include "cairo-test.h" + +#define SIZE 60 + +static void +triangle (cairo_t *cr, double x, double y, double h) +{ + cairo_move_to (cr, x, y); + cairo_line_to (cr, x+h/2, y+h); + cairo_line_to (cr, x+h, y); + cairo_close_path (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 0, 1); + cairo_paint (cr); + + /* Set an unbounded operator so that we can see how accurate the bounded + * extents were. + */ + cairo_set_operator (cr, CAIRO_OPERATOR_IN); + cairo_set_source_rgb (cr, 1, 1, 1); + + /* Wind several triangles together that reduce to just one */ + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + triangle (cr, 0, 0, SIZE); + triangle (cr, 0, 0, SIZE); + triangle (cr, SIZE/2-20, SIZE/2 - 20, 40); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (big_little_triangle, + "Tests that we tighten the bounds after tessellation.", + "fill", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/big-trap.c b/local/recipes/libs/cairo/source/test/big-trap.c new file mode 100644 index 0000000000..a59a38ea30 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/big-trap.c @@ -0,0 +1,92 @@ +/* + * Copyright © 2006 Mozilla Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Mozilla Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Mozilla Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Vladimir Vukicevic + */ + +#include "cairo-test.h" + +/* This test was originally written to exercise a bug in pixman in + * which it would scribble all over memory when given a particular + * (and bogus) trapezoid. However, a recent change to + * _cairo_fixed_from_double changed the details of the bogus trapezoid + * (it overflows in a different way now), so the bug is being masked. + * + * According to Vladimir, (https://lists.freedesktop.org/archives/cairo/2006-November/008482.html): + * + * Before the change, the two trapezoids that were generated were: + * + * Trap[0]: T: 0x80000000 B: 0x80000003 + * L: [(0x000a0000, 0x80000000) (0x00080000, 0x00080000)] + * R: [(0x01360000, 0x80000000) (0x01380000, 0x00080000)] + * Trap[1]: T: 0x80000003 B: 0x00080000 + * L: [(0x000a0000, 0x80000000) (0x00080000, 0x00080000)] + * R: [(0x01360000, 0x80000000) (0x01380000, 0x00080000)] + * + * After the change, the L/R coordinates are identical for both traps, but + * the top and bottom change: + * + * Trap[0]: t: 0x80000000 b: 0xfda80003 + * l: [(0x000a0000, 0x80000000) (0x00080000, 0x00080000)] + * r: [(0x01360000, 0x80000000) (0x01380000, 0x00080000)] + * Trap[1]: t: 0xfda80003 b: 0x00080000 + * l: [(0x000a0000, 0x80000000) (0x00080000, 0x00080000)] + * r: [(0x01360000, 0x80000000) (0x01380000, 0x00080000)] + * + * I think the fix we want here is to rewrite this test to call + * directly into pixman with the trapezoid of interest, (which will + * require adding a new way to configure cairo for "testing" which + * will prevent the hiding of internal library symbols. + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0,0,0); + + /* Note that without the clip, this doesn't crash... */ + cairo_new_path (cr); + cairo_rectangle (cr, 0, 0, width, height); + cairo_clip (cr); + + cairo_new_path (cr); + cairo_line_to (cr, 8.0, 8.0); + cairo_line_to (cr, 312.0, 8.0); + cairo_line_to (cr, 310.0, 31378756.2666666666); + cairo_line_to (cr, 10.0, 31378756.2666666666); + cairo_line_to (cr, 8.0, 8.0); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +/* XFAIL: range overflow of fixed-point */ +CAIRO_TEST (big_trap, + "Test oversize trapezoid with a clip region" + "\nTest needs to be adjusted to trigger the original bug", + "trap", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bilevel-image.c b/local/recipes/libs/cairo/source/test/bilevel-image.c new file mode 100644 index 0000000000..4feff0e7a5 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bilevel-image.c @@ -0,0 +1,63 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define RGBx 0xffff0000, 0xff00ff00, 0xff0000ff, 0x00000000 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + uint32_t data[] = { + RGBx, RGBx, RGBx, + RGBx, RGBx, RGBx, + RGBx, RGBx, RGBx, + RGBx, RGBx, RGBx, + }; + cairo_surface_t *mask; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + mask = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_ARGB32, 12, 4, 48); + + cairo_set_source_surface (cr, mask, 0, 0); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + + cairo_paint (cr); + + cairo_surface_finish (mask); /* data goes out of scope */ + cairo_surface_destroy (mask); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bilevel_image, + "Test that PS can embed an RGB image with a bilevel alpha channel.", + "alpha, ps", /* keywords */ + NULL, /* requirements */ + 12, 4, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bitmap-font.c b/local/recipes/libs/cairo/source/test/bitmap-font.c new file mode 100644 index 0000000000..f9d753954a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bitmap-font.c @@ -0,0 +1,226 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#include +#include +#ifdef HAVE_UNISTD_H +#include +#endif + +#include +#include +#include + +#define FONT "6x13.pcf" +#define TEXT_SIZE 13 + +static cairo_bool_t +font_extents_equal (const cairo_font_extents_t *A, + const cairo_font_extents_t *B) +{ + return + CAIRO_TEST_DOUBLE_EQUALS (A->ascent, B->ascent) && + CAIRO_TEST_DOUBLE_EQUALS (A->descent, B->descent) && + CAIRO_TEST_DOUBLE_EQUALS (A->height, B->height) && + CAIRO_TEST_DOUBLE_EQUALS (A->max_x_advance, B->max_x_advance) && + CAIRO_TEST_DOUBLE_EQUALS (A->max_y_advance, B->max_y_advance); +} + +static cairo_test_status_t +check_font_extents (const cairo_test_context_t *ctx, cairo_t *cr, const char *comment) +{ + cairo_font_extents_t font_extents, ref_font_extents = {11, 2, 13, 6, 0}; + cairo_status_t status; + + memset (&font_extents, 0xff, sizeof (cairo_font_extents_t)); + cairo_font_extents (cr, &font_extents); + + status = cairo_status (cr); + if (status) + return cairo_test_status_from_status (ctx, status); + + if (! font_extents_equal (&font_extents, &ref_font_extents)) { + cairo_test_log (ctx, "Error: %s: cairo_font_extents(); extents (%g, %g, %g, %g, %g)\n", + comment, + font_extents.ascent, font_extents.descent, + font_extents.height, + font_extents.max_x_advance, font_extents.max_y_advance); + return CAIRO_TEST_FAILURE; + } + + return CAIRO_TEST_SUCCESS; +} + +#if !defined(S_ISREG) && defined(S_IFMT) && defined(S_IFREG) +#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) +#endif + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + FcPattern *pattern; + cairo_font_face_t *font_face; + cairo_font_extents_t font_extents; + cairo_font_options_t *font_options; + cairo_status_t status; + char *filename; + int face_count; + struct stat stat_buf; + + xasprintf (&filename, "%s/%s", ctx->srcdir, FONT); + + if (stat (filename, &stat_buf) || ! S_ISREG (stat_buf.st_mode)) { + cairo_test_log (ctx, "Error finding font: %s: file not found?\n", filename); + return CAIRO_TEST_FAILURE; + } + + pattern = FcFreeTypeQuery ((unsigned char *)filename, 0, NULL, &face_count); + if (! pattern) { + cairo_test_log (ctx, "FcFreeTypeQuery failed.\n"); + free (filename); + return cairo_test_status_from_status (ctx, CAIRO_STATUS_NO_MEMORY); + } + + font_face = cairo_ft_font_face_create_for_pattern (pattern); + FcPatternDestroy (pattern); + + status = cairo_font_face_status (font_face); + if (status) { + cairo_test_log (ctx, "Error creating font face for %s: %s\n", + filename, + cairo_status_to_string (status)); + free (filename); + return cairo_test_status_from_status (ctx, status); + } + + free (filename); + if (cairo_font_face_get_type (font_face) != CAIRO_FONT_TYPE_FT) { + cairo_test_log (ctx, "Unexpected value from cairo_font_face_get_type: %d (expected %d)\n", + cairo_font_face_get_type (font_face), CAIRO_FONT_TYPE_FT); + cairo_font_face_destroy (font_face); + return CAIRO_TEST_FAILURE; + } + + cairo_set_font_face (cr, font_face); + cairo_font_face_destroy (font_face); + cairo_set_font_size (cr, 13); + + font_options = cairo_font_options_create (); + +#define CHECK_FONT_EXTENTS(comment) do {\ + cairo_test_status_t test_status; \ + test_status = check_font_extents (ctx, cr, (comment)); \ + if (test_status != CAIRO_TEST_SUCCESS) { \ + cairo_font_options_destroy (font_options); \ + return test_status; \ + } \ +} while (0) + + cairo_font_extents (cr, &font_extents); + CHECK_FONT_EXTENTS ("default"); + + cairo_font_options_set_hint_metrics (font_options, CAIRO_HINT_METRICS_ON); + cairo_set_font_options (cr, font_options); + + CHECK_FONT_EXTENTS ("HINT_METRICS_ON"); + + cairo_move_to (cr, 1, font_extents.ascent - 1); + cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); /* blue */ + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_NONE); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_ON HINT_STYLE_NONE"); + cairo_show_text (cr, "the "); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_SLIGHT); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_ON HINT_STYLE_SLIGHT"); + cairo_show_text (cr, "quick "); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_MEDIUM); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_ON HINT_STYLE_MEDIUM"); + cairo_show_text (cr, "brown"); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_FULL); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_ON HINT_STYLE_FULL"); + cairo_show_text (cr, " fox"); + + /* Switch from show_text to text_path/fill to exercise bug #7889 */ + cairo_text_path (cr, " jumps over a lazy dog"); + cairo_fill (cr); + + /* And test it rotated as well for the sake of bug #7888 */ + + cairo_translate (cr, width, height); + cairo_rotate (cr, M_PI); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_DEFAULT); + cairo_font_options_set_hint_metrics (font_options, CAIRO_HINT_METRICS_OFF); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_OFF"); + + cairo_move_to (cr, 1, font_extents.height - font_extents.descent - 1); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_NONE); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_OFF HINT_STYLE_NONE"); + cairo_show_text (cr, "the "); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_SLIGHT); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_OFF HINT_STYLE_SLIGHT"); + cairo_show_text (cr, "quick"); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_MEDIUM); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_OFF HINT_STYLE_MEDIUM"); + cairo_show_text (cr, " brown"); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_FULL); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_OFF HINT_STYLE_FULL"); + cairo_show_text (cr, " fox"); + + cairo_text_path (cr, " jumps over"); + cairo_text_path (cr, " a lazy dog"); + cairo_fill (cr); + + cairo_font_options_destroy (font_options); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bitmap_font, + "Test drawing with a font consisting only of bitmaps" + "\nThe PDF and PS backends embed a slightly distorted font for the rotated case.", + "text", /* keywords */ + "ft", /* requirements */ + 246 + 1, 2 * TEXT_SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/buffer-diff.c b/local/recipes/libs/cairo/source/test/buffer-diff.c new file mode 100644 index 0000000000..0796ca42a6 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/buffer-diff.c @@ -0,0 +1,273 @@ +/* imagediff - Compare two images + * + * Copyright © 2004 Richard D. Worth + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of Richard Worth + * not be used in advertising or publicity pertaining to distribution + * of the software without specific, written prior permission. + * Richard Worth makes no representations about the suitability of this + * software for any purpose. It is provided "as is" without express + * or implied warranty. + * + * RICHARD WORTH DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN + * NO EVENT SHALL RICHARD WORTH BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS + * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, + * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Richard D. Worth */ + +#include "config.h" + +#include +#include +#include +#ifdef HAVE_UNISTD_H +#include +#endif +#include +#include +#include + +#include "cairo-test.h" + +#include "pdiff.h" +#include "buffer-diff.h" + +/* Don't allow any differences greater than this value, even if pdiff + * claims that the images are identical */ +#define PERCEPTUAL_DIFF_THRESHOLD 25 + +/* Compare two buffers, returning the number of pixels that are + * different and the maximum difference of any single color channel in + * result_ret. + * + * This function should be rewritten to compare all formats supported by + * cairo_format_t. + */ +static void +buffer_diff_core (const unsigned char *_buf_a, int stride_a, cairo_format_t format_a, + const unsigned char *_buf_b, int stride_b, cairo_format_t format_b, + unsigned char *_buf_diff, int stride_diff, cairo_format_t format_diff, + int width, + int height, + buffer_diff_result_t *result_ret) +{ + const uint32_t *buf_a = (const uint32_t*) _buf_a; + const uint32_t *buf_b = (const uint32_t*) _buf_b; + uint32_t *buf_diff = (uint32_t*) _buf_diff; + int x, y; + buffer_diff_result_t result = {0, 0}; + + assert (format_a == CAIRO_FORMAT_RGB24 || format_a == CAIRO_FORMAT_ARGB32); + assert (format_b == CAIRO_FORMAT_RGB24 || format_b == CAIRO_FORMAT_ARGB32); + assert (format_diff == CAIRO_FORMAT_RGB24 || format_diff == CAIRO_FORMAT_ARGB32); + + stride_a /= sizeof (uint32_t); + stride_b /= sizeof (uint32_t); + stride_diff /= sizeof (uint32_t); + for (y = 0; y < height; y++) { + const uint32_t *row_a = buf_a + y * stride_a; + const uint32_t *row_b = buf_b + y * stride_b; + uint32_t *row = buf_diff + y * stride_diff; + + for (x = 0; x < width; x++) { + uint32_t pixel_a = row_a[x]; + uint32_t pixel_b = row_b[x]; + /* convert pixel data to ARGB32 if necessary */ + if (format_a == CAIRO_FORMAT_RGB24) + pixel_a |= 0xff000000; + if (format_b == CAIRO_FORMAT_RGB24) + pixel_b |= 0xff000000; + + /* check if the pixels are the same */ + if (pixel_a != pixel_b) { + int channel; + uint32_t diff_pixel = 0; + + /* calculate a difference value for all 4 channels */ + for (channel = 0; channel < 4; channel++) { + int value_a = (pixel_a >> (channel*8)) & 0xff; + int value_b = (pixel_b >> (channel*8)) & 0xff; + unsigned int diff; + diff = abs (value_a - value_b); + if (diff > result.max_diff) + result.max_diff = diff; + diff *= 4; /* emphasize */ + if (diff) + diff += 128; /* make sure it's visible */ + if (diff > 255) + diff = 255; + diff_pixel |= diff << (channel*8); + } + + result.pixels_changed++; + if ((diff_pixel & 0x00ffffff) == 0) { + /* alpha only difference, convert to luminance */ + uint8_t alpha = diff_pixel >> 24; + diff_pixel = alpha * 0x010101; + } + row[x] = diff_pixel; + } else { + row[x] = 0; + } + row[x] |= 0xff000000; /* Set ALPHA to 100% (opaque) */ + } + } + + *result_ret = result; +} + +/* Compares two image surfaces + * + * Provides number of pixels changed and maximum single-channel + * difference in result. + * + * Also fills in a "diff" surface intended to visually show where the + * images differ. + */ +static void +compare_surfaces (const cairo_test_context_t *ctx, + cairo_surface_t *surface_a, + cairo_surface_t *surface_b, + cairo_surface_t *surface_diff, + buffer_diff_result_t *result) +{ + /* These default values were taken straight from the + * perceptualdiff program. We'll probably want to tune these as + * necessary. */ + double gamma = 2.2; + double luminance = 100.0; + double field_of_view = 45.0; + int discernible_pixels_changed; + + /* First, we run cairo's old buffer_diff algorithm which looks for + * pixel-perfect images, (we do this first since the test suite + * runs about 3x slower if we run pdiff_compare first). + */ + buffer_diff_core (cairo_image_surface_get_data (surface_a), + cairo_image_surface_get_stride (surface_a), + cairo_image_surface_get_format (surface_a), + cairo_image_surface_get_data (surface_b), + cairo_image_surface_get_stride (surface_b), + cairo_image_surface_get_format (surface_b), + cairo_image_surface_get_data (surface_diff), + cairo_image_surface_get_stride (surface_diff), + cairo_image_surface_get_format (surface_diff), + cairo_image_surface_get_width (surface_a), + cairo_image_surface_get_height (surface_a), + result); + if (result->pixels_changed == 0) + return; + + cairo_test_log (ctx, + "%d pixels differ (with maximum difference of %d) from reference image\n", + result->pixels_changed, result->max_diff); + + /* Then, if there are any different pixels, we give the pdiff code + * a crack at the images. If it decides that there are no visually + * discernible differences in any pixels, then we accept this + * result as good enough. + * + * Only let pdiff have a crack at the comparison if the max difference + * is lower than a threshold, otherwise some problems could be masked. + */ + if (result->max_diff < PERCEPTUAL_DIFF_THRESHOLD) { + discernible_pixels_changed = pdiff_compare (surface_a, surface_b, + gamma, luminance, field_of_view); + if (discernible_pixels_changed == 0) { + result->pixels_changed = 0; + cairo_test_log (ctx, + "But perceptual diff finds no visually discernible difference.\n" + "Accepting result.\n"); + } + } +} + +void +buffer_diff_noalpha (const unsigned char *buf_a, + const unsigned char *buf_b, + unsigned char *buf_diff, + int width, + int height, + int stride, + buffer_diff_result_t *result) +{ + buffer_diff_core(buf_a, stride, CAIRO_FORMAT_RGB24, + buf_b, stride, CAIRO_FORMAT_RGB24, + buf_diff, stride, CAIRO_FORMAT_RGB24, + width, height, + result); +} + +static cairo_bool_t +same_size (cairo_surface_t *a, cairo_surface_t *b) +{ + unsigned int width_a, height_a; + unsigned int width_b, height_b; + + width_a = cairo_image_surface_get_width (a); + height_a = cairo_image_surface_get_height (a); + + width_b = cairo_image_surface_get_width (b); + height_b = cairo_image_surface_get_height (b); + + return width_a == width_b && height_a == height_b; +} + +/* Image comparison code courtesy of Richard Worth + * Returns number of pixels changed, (or -1 on error). + * Also saves a "diff" image intended to visually show where the + * images differ. + * + * The return value simply indicates whether a check was successfully + * made, (as opposed to a file-not-found condition or similar). It + * does not indicate anything about how much the images differ. For + * that, see result. + * + * One failure mode is if the two images provided do not have the same + * dimensions. In this case, this function will return + * CAIRO_STATUS_SURFACE_TYPE_MISMATCH (which is a bit of an abuse, but + * oh well). + */ +cairo_status_t +image_diff (const cairo_test_context_t *ctx, + cairo_surface_t *surface_a, + cairo_surface_t *surface_b, + cairo_surface_t *surface_diff, + buffer_diff_result_t *result) +{ + if (cairo_surface_status (surface_a)) + return cairo_surface_status (surface_a); + + if (cairo_surface_status (surface_b)) + return cairo_surface_status (surface_b); + + if (cairo_surface_status (surface_diff)) + return cairo_surface_status (surface_diff); + + if (! same_size (surface_a, surface_b) || + ! same_size (surface_a, surface_diff)) + { + cairo_test_log (ctx, "Error: Image size mismatch\n"); + return CAIRO_STATUS_SURFACE_TYPE_MISMATCH; + } + + compare_surfaces (ctx, surface_a, surface_b, surface_diff, result); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_bool_t +image_diff_is_failure (const buffer_diff_result_t *result, + unsigned int tolerance) +{ + return result->pixels_changed && + result->max_diff > tolerance; +} diff --git a/local/recipes/libs/cairo/source/test/buffer-diff.h b/local/recipes/libs/cairo/source/test/buffer-diff.h new file mode 100644 index 0000000000..2cbb8959ce --- /dev/null +++ b/local/recipes/libs/cairo/source/test/buffer-diff.h @@ -0,0 +1,73 @@ +/* imagediff - Compare two images + * + * Copyright © 2004 Richard D. Worth + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of the authors + * not be used in advertising or publicity pertaining to distribution + * of the software without specific, written prior permission. + * The authors make no representations about the suitability of this + * software for any purpose. It is provided "as is" without express + * or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN + * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS + * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, + * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Richard D. Worth + * Carl Worth + */ + +#ifndef BUFFER_DIFF_H +#define BUFFER_DIFF_H + +#include "cairo-test.h" + +typedef struct _buffer_diff_result { + unsigned int pixels_changed; + unsigned int max_diff; +} buffer_diff_result_t; + +/* Compares two image buffers ignoring the alpha channel. + * + * Provides number of pixels changed and maximum single-channel + * difference in result. + * + * Also fills in a "diff" buffer intended to visually show where the + * images differ. + */ +void +buffer_diff_noalpha (const unsigned char *buf_a, + const unsigned char *buf_b, + unsigned char *buf_diff, + int width, + int height, + int stride, + buffer_diff_result_t *result); + +/* The central algorithm to compare two images, and return the differences + * in the surface_diff. + * + * Provides number of pixels changed and maximum single-channel + * difference in result. + */ +cairo_status_t +image_diff (const cairo_test_context_t *ctx, + cairo_surface_t *surface_a, + cairo_surface_t *surface_b, + cairo_surface_t *surface_diff, + buffer_diff_result_t *result); + +cairo_bool_t +image_diff_is_failure (const buffer_diff_result_t *result, + unsigned int tolerance); + +#endif diff --git a/local/recipes/libs/cairo/source/test/bug-277.c b/local/recipes/libs/cairo/source/test/bug-277.c new file mode 100644 index 0000000000..f4de539a44 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-277.c @@ -0,0 +1,94 @@ +/* + * Copyright © 2022 Uli Schlachter + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Uli Schlachter + */ + +#include "cairo-test.h" +#include "cairo-script.h" + +struct write_data { + cairo_bool_t finished; + cairo_test_status_t test_status; +}; + +static cairo_surface_t* +create_recording_surface () +{ + /* Create a non-empty recording surface with arbitrary content */ + cairo_surface_t *surf = cairo_recording_surface_create (CAIRO_CONTENT_COLOR, NULL); + cairo_t *cr = cairo_create (surf); + + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, 10, 0); + cairo_stroke (cr); + + cairo_destroy (cr); + return surf; +} + +static cairo_status_t +write_func(void *closure, const unsigned char* bytes, unsigned int length) +{ + struct write_data *data = closure; + (void) bytes; (void) length; + + if (data->finished) + data->test_status = CAIRO_TEST_ERROR; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + struct write_data write_data = { FALSE, CAIRO_TEST_SUCCESS }; + cairo_device_t *script_device = cairo_script_create_for_stream (write_func, &write_data); + cairo_surface_t *recording = create_recording_surface (); + cairo_surface_t *script; + cairo_t *cr; + + /* Draw the recording surface to a script surface */ + script = cairo_script_surface_create (script_device, CAIRO_CONTENT_COLOR, 5, 5); + cr = cairo_test_create (script, ctx); + cairo_set_source_surface (cr, recording, 0, 0); + cairo_paint (cr); + cairo_destroy (cr); + cairo_surface_destroy (script); + + /* Finish the script device; no further writing allowed afterwards */ + cairo_device_finish (script_device); + write_data.finished = TRUE; + cairo_device_destroy (script_device); + + cairo_surface_destroy (recording); + + return write_data.test_status; +} + +CAIRO_TEST (bug_277, + "Regression test: Script surface emitting test after finish()", + NULL, /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/bug-361.c b/local/recipes/libs/cairo/source/test/bug-361.c new file mode 100644 index 0000000000..a0499223ee --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-361.c @@ -0,0 +1,111 @@ +/* + * Copyright © 2019 Uli Schlachter + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "cairo-test.h" + +/* This is basically gears.shape.arrow */ +static void +shape (cairo_t *cr, double width, double height) +{ + double shaft_length = height / 2; + double shaft_width = width / 2; + double head_width = width; + double head_length = height - shaft_length; + + cairo_move_to (cr, width / 2, 0); + cairo_rel_line_to (cr, head_width / 2, head_length); + cairo_rel_line_to (cr, -(head_width - shaft_width) / 2, 0); + cairo_rel_line_to (cr, 0, shaft_length); + cairo_rel_line_to (cr, -shaft_width, 0); + cairo_rel_line_to (cr, 0, -shaft_length); + cairo_rel_line_to (cr, -(head_width - shaft_width) / 2, 0); + cairo_close_path (cr); +} + +/* This is basically the drawing routine of wibox.container.background */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double bw = 1.5; + + cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR_ALPHA); + + /* Draw background */ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + /* Create shape */ + cairo_translate (cr, bw, bw); + shape (cr, width - 2 * bw, height - 2 * bw); + cairo_translate (cr, -bw, -bw); + + /* Now do the border */ + + cairo_push_group_with_content (cr, CAIRO_CONTENT_ALPHA); + + /* Mark everything as "is border" */ + cairo_set_source_rgba (cr, 0, 0, 0, 1); + cairo_paint (cr); + + /* Remove inside of the shape */ + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgba (cr, 0, 0, 0, 0); + cairo_fill_preserve (cr); + + cairo_pattern_t *mask = cairo_pop_group (cr); + + /* Now actually draw the border via the mask */ + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_mask (cr, mask); + + cairo_pattern_destroy (mask); + + /* We now have the right content in a temporary surface. Copy it to the + * target surface. Needs another mask. + */ + cairo_push_group_with_content (cr, CAIRO_CONTENT_ALPHA); + + cairo_set_line_width (cr, 2 * bw); + cairo_set_source_rgba (cr, 0, 0, 0, 1); + cairo_stroke_preserve (cr); + cairo_fill (cr); + + mask = cairo_pop_group (cr); + cairo_pop_group_to_source (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_mask (cr, mask); + + cairo_pattern_destroy (mask); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_361, + "Bug 361 (Problem with SVG backend and masks)", + "mask, operator", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bug-40410.c b/local/recipes/libs/cairo/source/test/bug-40410.c new file mode 100644 index 0000000000..2d6e512c03 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-40410.c @@ -0,0 +1,72 @@ +/* + * Copyright © 2011 Krzysztof KosiÅ„ski + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Krzysztof KosiÅ„ski + */ + +#include "cairo-test.h" + +#define WIDTH 300 +#define HEIGHT 100 + +/* + * The bug appears to be triggered if: + * 1. There is more than one subpath + * 2. All subpaths are axis-aligned rectangles + * 3. Only one of the subpaths is within surface bounds + * + * Tweaking any of the coordinates so that there is at least one + * non-axis-aligned segment or removing the second subpath (the one that is + * outside the surface bounds) causes the bug to disappear. + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + + cairo_move_to (cr, 10.3, 10.6); + cairo_line_to (cr, 10.3, 150.2); + cairo_line_to (cr, 290.1, 150.2); + cairo_line_to (cr, 290.1, 10.6); + cairo_close_path (cr); + + cairo_move_to (cr, 10.3, 180.7); + cairo_line_to (cr, 10.3, 230.2); + cairo_line_to (cr, 290.1, 230.2); + cairo_line_to (cr, 290.1, 180.7); + cairo_close_path (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_40410, + "Exercises a bug found in 1.10.2 (and never again!)", + "fill", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bug-431.c b/local/recipes/libs/cairo/source/test/bug-431.c new file mode 100644 index 0000000000..717b03b7fe --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-431.c @@ -0,0 +1,68 @@ +/* + * Copyright © 2021 Lome More + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_matrix_t test_matrix; + test_matrix.xx = 614; + test_matrix.yx = 0; + test_matrix.xy = 0; + test_matrix.yy = -794; + test_matrix.x0 = -1.3831; + test_matrix.y0 = 793; + cairo_set_matrix(cr, &test_matrix); + + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *png_surface = cairo_test_create_surface_from_png (ctx, "romedalen.png"); + cairo_pattern_t *png_pattern = cairo_pattern_create_for_surface(png_surface); + cairo_matrix_t matrix; + matrix.xx = 1228; + matrix.yx = 0; + matrix.xy = 0; + matrix.yy = -1590; + matrix.x0 = 0; + matrix.y0 = 1590; + cairo_pattern_set_matrix (png_pattern, &matrix); + cairo_pattern_t *mask_pattern = cairo_pattern_create_rgba (1.0, 1.0, 1.0, 0.15); + cairo_save(cr); + cairo_set_source(cr, png_pattern); + cairo_mask(cr, mask_pattern); + cairo_restore(cr); + + cairo_surface_destroy (png_surface); + cairo_pattern_destroy (png_pattern); + cairo_pattern_destroy (mask_pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_431, + "Bug 431 (Different result on SVG surface)", + "", /* keywords */ + NULL, /* requirements */ + 128, 96, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bug-448.c b/local/recipes/libs/cairo/source/test/bug-448.c new file mode 100644 index 0000000000..1a459ab5fc --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-448.c @@ -0,0 +1,76 @@ +/* + * Copyright © 2020 Ben Pfaff & Uli Schlachter + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Authors: + * Ben Pfaff + * Uli Schlachter + */ + +#include "cairo-test.h" + +static cairo_surface_t* +draw_recording () +{ + cairo_surface_t *recording; + cairo_rectangle_t extents; + cairo_t *cr; + + extents.x = 0; + extents.y = 0; + extents.width = 10; + extents.height = 10; + + recording = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, &extents); + + cr = cairo_create(recording); + cairo_tag_begin (cr, CAIRO_TAG_DEST, "name='dest'"); + cairo_rectangle (cr, 3, 3, 4, 4); + cairo_stroke (cr); + cairo_tag_end (cr, CAIRO_TAG_DEST); + cairo_destroy(cr); + + return recording; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *recording; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + recording = draw_recording (); + cairo_set_source_surface (cr, recording, 0, 0); + cairo_paint (cr); + cairo_surface_destroy (recording); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_448, + "Exercises a bug with the tag API", + "pdf", /* keywords */ + NULL, /* requirements */ + 10, 10, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bug-51910.c b/local/recipes/libs/cairo/source/test/bug-51910.c new file mode 100644 index 0000000000..37881de3e3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-51910.c @@ -0,0 +1,91 @@ +/* + * Copyright © 2012 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "cairo-test.h" + +/* An error in xlib pattern transformation discovered by Albertas VyÅ¡niauskas */ + +static cairo_pattern_t * +source(void) +{ + cairo_surface_t *surface; + cairo_pattern_t *pattern; + cairo_matrix_t matrix; + cairo_t *cr; + int i; + + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 32, 32); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, .5, .5, .5); + cairo_set_line_width (cr, 2); + + for (i = -1; i <= 8; i++) { + cairo_move_to (cr, -34 + 8*i, 34); + cairo_rel_line_to (cr, 36, -36); + cairo_stroke (cr); + } + + pattern = cairo_pattern_create_for_surface (cairo_get_target (cr)); + cairo_destroy (cr); + + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); + + cairo_matrix_init_translate(&matrix, 14.1, 0); + cairo_pattern_set_matrix(pattern, &matrix); + + return pattern; +} + + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + int i; + + cairo_paint (cr); + + pattern = source (); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + for (i = 0; i < 8; i++) { + cairo_rectangle (cr, 3.5*i, 32*i, 256, 32); + cairo_fill (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_51910, + "A bug in the xlib pattern transformation", + " paint", /* keywords */ + NULL, /* requirements */ + 256, 256, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bug-535.c b/local/recipes/libs/cairo/source/test/bug-535.c new file mode 100644 index 0000000000..5283b2ec7d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-535.c @@ -0,0 +1,51 @@ +/* + * Copyright © 2022 Uli Schlachter, Antony Lee + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Uli Schlachter + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + // Once upon a time, the "rectangle detection" in cairo-script was triggered + // by this degenerate rectangle and produces CAIRO_STATUS_INVALID_PATH_DATA. + + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, 9, 0); + cairo_fill (cr); + + // Fill the whole surface so that argb32 and rgb24 can share a ref image + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_535, + "Regression test for bug #535 in cairo-svg", + "degenerate", /* keywords */ + NULL, /* requirements */ + 1, 1, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/bug-75705.c b/local/recipes/libs/cairo/source/test/bug-75705.c new file mode 100644 index 0000000000..e140ff9931 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-75705.c @@ -0,0 +1,32 @@ +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double dsh[2] = {1,3}; + + cairo_set_source_rgba (cr, 0, 0, 0, 1); + cairo_paint (cr); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + + cairo_move_to (cr, 3, 3); + /* struct glitter_scan_converter spans_embedded array size is 64 */ + cairo_line_to (cr, 65+3, 3); + + cairo_set_antialias (cr, CAIRO_ANTIALIAS_FAST); + cairo_set_tolerance (cr, 1); + + cairo_set_dash (cr, dsh, 2, 0); + cairo_set_line_width (cr, 2); + + cairo_stroke (cr); + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_75705, + "Bug 75705 (exercise tor22-scan-converter)", + "dash, stroke, antialias", /* keywords */ + NULL, /* requirements */ + 72, 8, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bug-84115.c b/local/recipes/libs/cairo/source/test/bug-84115.c new file mode 100644 index 0000000000..4db113c5c1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-84115.c @@ -0,0 +1,61 @@ +/* + * Copyright © 2011 Krzysztof KosiÅ„ski + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Krzysztof KosiÅ„ski + */ + +#include "cairo-test.h" + +#define WIDTH 800 +#define HEIGHT 800 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double lw = 800; + int n = 0; + + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + + cairo_set_source_rgba (cr, 0, 0, 0, .4); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + do { + cairo_set_line_width(cr, lw); + cairo_arc(cr, WIDTH/2, HEIGHT/2, lw/2, + 2*M_PI*(13*n + 1) / 130, 2*M_PI*(13*n + 12) / 130); + cairo_stroke(cr); + + n++; + lw /= 1.1; + } while (lw > 0.5); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_84115, + "Exercises a bug found in stroke generation using trapezoids", + "stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bug-bo-collins.c b/local/recipes/libs/cairo/source/test/bug-bo-collins.c new file mode 100644 index 0000000000..cf6d688e31 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-bo-collins.c @@ -0,0 +1,76 @@ +/* + * Copyright © 2012 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_translate (cr, 0, 0); + cairo_save (cr); + cairo_rectangle (cr, 10, 10, 20, 20); + cairo_rectangle (cr, 20, 10, -10, 10); + cairo_clip (cr); + cairo_paint (cr); + cairo_restore (cr); + + cairo_translate (cr, 40, 0); + cairo_save (cr); + cairo_rectangle (cr, 10, 10, 20, 20); + cairo_rectangle (cr, 30, 10, -10, 10); + cairo_clip (cr); + cairo_paint (cr); + cairo_restore (cr); + + cairo_translate (cr, 0, 40); + cairo_save (cr); + cairo_rectangle (cr, 10, 10, 20, 20); + cairo_rectangle (cr, 30, 20, -10, 10); + cairo_clip (cr); + cairo_paint (cr); + cairo_restore (cr); + + cairo_translate (cr, -40, 0); + cairo_save (cr); + cairo_rectangle (cr, 10, 10, 20, 20); + cairo_rectangle (cr, 20, 20, -10, 10); + cairo_clip (cr); + cairo_paint (cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_bo_collins, + "Exercises a bug discovered by S. Christian Collins", + "clip, rectangular", /* keywords */ + NULL, /* requirements */ + 80, 80, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bug-bo-rectangular.c b/local/recipes/libs/cairo/source/test/bug-bo-rectangular.c new file mode 100644 index 0000000000..08e2e494aa --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-bo-rectangular.c @@ -0,0 +1,67 @@ +/* + * Copyright 2010 Red Hat + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Intel not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Intel makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Benjamin Otte + */ + +#include "cairo-test.h" + +static void +rect (cairo_t *cr, int x1, int y1, int x2, int y2) +{ + cairo_rectangle (cr, x1, y1, x2 - x1, y2 - y1); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + + cairo_scale (cr, 1./256, 1./256); + + rect (cr, 0, 0, 29696, 7680); + rect (cr, 0, 0, -15360, 15360); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 1, 0.5, 0); + cairo_paint (cr); + + rect (cr, 9984, 0, 2969, 3840); + rect (cr, 0, 3840, 9472, 7680); + cairo_clip (cr); + + rect (cr, 0, 3840, 3584, 7680); + cairo_set_source_rgb (cr, 1, 0, 0.5); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_bo_rectangular, + "Tests a bug found by Benjamin Otte in the rectangular tessellator", + "tessellator", /* keywords */ + NULL, /* requirements */ + 300, 300, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bug-bo-ricotz.c b/local/recipes/libs/cairo/source/test/bug-bo-ricotz.c new file mode 100644 index 0000000000..9524d208de --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-bo-ricotz.c @@ -0,0 +1,74 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* An assertion failure found by Rico Tzschichholz */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_rectangle (cr, 10, 55,165, 1); + cairo_rectangle (cr, 174, 55,1, 413); + cairo_rectangle (cr, 10, 56, 1, 413); + cairo_rectangle (cr, 10, 469, 165, 1); + cairo_clip (cr); + + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + + cairo_move_to (cr, 10, 57); + cairo_curve_to (cr, 10, 55.894531, 10.894531, 55, 12, 55); + cairo_line_to (cr, 173, 55); + cairo_curve_to (cr, 174.105469, 55, 175, 55.894531, 175, 57); + cairo_line_to (cr, 175, 468); + cairo_curve_to (cr, 175, 469.105469, 174.105469, 470, 173, 470); + cairo_line_to (cr, 12, 470); + cairo_curve_to (cr, 10.894531, 470, 10, 469.105469, 10, 468); + + cairo_move_to (cr, 11, 57); + cairo_curve_to (cr, 11, 56.449219, 11.449219, 56, 12, 56); + cairo_line_to (cr, 173, 56); + cairo_curve_to (cr, 173.550781, 56, 174, 56.449219, 174, 57); + cairo_line_to (cr, 174, 468); + cairo_curve_to (cr, 174, 468.550781, 173.550781, 469, 173, 469); + cairo_line_to (cr, 12, 469); + cairo_curve_to (cr, 11.449219, 469, 11, 468.550781, 11, 468); + + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_bo_ricotz, + "Exercises a bug discovered by Rico Tzschichholz", + "clip, fill", /* keywords */ + NULL, /* requirements */ + 649, 480, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bug-extents.c b/local/recipes/libs/cairo/source/test/bug-extents.c new file mode 100644 index 0000000000..4edb4a548b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-extents.c @@ -0,0 +1,59 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2010 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, 0, -25); + + cairo_move_to (cr, 50, 200); + cairo_curve_to (cr, 50, 150, 100, 50, 150, 50); + cairo_curve_to (cr, 200, 50, 250, 250, 200, 250); + cairo_curve_to (cr, 150, 250, 200, 50, 50, 100); + cairo_curve_to (cr, -100, 150, 200, 150, 200, 200); + cairo_curve_to (cr, 200, 250, 50, 250, 50, 200); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_fill_preserve (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_extents, + "Tests a bug in the computation of approximate extents", + "extents", /* keywords */ + NULL, /* requirements */ + 250, 250, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bug-image-compositor.c b/local/recipes/libs/cairo/source/test/bug-image-compositor.c new file mode 100644 index 0000000000..304ea089cb --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-image-compositor.c @@ -0,0 +1,66 @@ +/* + * Copyright © 2020 Uli Schlachter, Heiko Lewin + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Uli Schlachter + * Author: Heiko Lewin + */ +#include "cairo-test.h" + + +/* This test reproduces an overflow of a mask-buffer in cairo-image-compositor.c */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 0., 0., 0.); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 1., 1., 1.); + cairo_set_line_width (cr, 1.); + + cairo_pattern_t *p = cairo_pattern_create_linear (0, 0, width, height); + cairo_pattern_add_color_stop_rgb (p, 0, 0.99, 1, 1); + cairo_pattern_add_color_stop_rgb (p, 1, 1, 1, 1); + cairo_set_source (cr, p); + cairo_pattern_destroy(p); + + cairo_move_to (cr, 0.5, -1); + for (int i = 0; i < width; i+=3) { + cairo_rel_line_to (cr, 2, 2); + cairo_rel_line_to (cr, 1, -2); + } + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + + +CAIRO_TEST (bug_image_compositor, + "Crash in image-compositor", + "stroke, stress", /* keywords */ + NULL, /* requirements */ + 10000, 1, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/bug-seams.c b/local/recipes/libs/cairo/source/test/bug-seams.c new file mode 100644 index 0000000000..01e84ff060 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-seams.c @@ -0,0 +1,120 @@ +/* + * Copyright 2010 Soeren Sandmann Pedersen + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Soeren Sandmann + */ + +/* Exercises a case of seam appearing between two polygons in the image + * backend but not in xlib [using pixman]. + * + * The test case draws two abutting quads both individually on the + * leftm combining them with operator ADD, and in one go on the right. + * Both methods should show no signs of seaming at the common edge + * between the two quads, but the individually drawn ones have a + * slight seam. + * + * The cause of the seam is that there are slight differences in the + * output of the analytical coverage rasterization and the + * supersampling rasterization methods, both employed by + * cairo-tor-scan-converter. When drawn individually, the scan + * converter gets a partial view of the geometry at a time, so it ends + * up making different decisions about which scanlines it rasterizes + * with which method, compared to when the geometry is draw all at + * once. Though both methods produce seamless results individually + * (where applicable), they don't produce bit-exact identical results, + * and hence we get seaming where they meet. + */ + +#include "cairo-test.h" + +static void +draw_quad (cairo_t *cr, + double x1, double y1, double x2, double y2, + double x3, double y3, double x4, double y4) +{ + cairo_move_to (cr, x1, y1); + cairo_line_to (cr, x2, y2); + cairo_line_to (cr, x3, y3); + cairo_line_to (cr, x4, y4); + cairo_close_path (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_scale (cr, 20, 20); + cairo_translate (cr, 5, 1); + + /* On the left side, we have two quads drawn one at a time and + * combined with OPERATOR_ADD. This should be seamless, but + * isn't. */ + cairo_push_group (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + + cairo_set_source_rgb (cr, 0, 0.6, 0); + draw_quad (cr, + 1.50, 1.50, + 2.64, 1.63, + 1.75, 2.75, + 0.55, 2.63); + cairo_fill (cr); + draw_quad (cr, + 0.55, 2.63, + 1.75, 2.75, + 0.98, 4.11, + -0.35, 4.05); + cairo_fill (cr); + + cairo_pop_group_to_source (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_paint (cr); + + /* On the right side, we have the same two quads drawn both at the + * same time. This is seamless. */ + cairo_translate (cr, 10, 0); + + cairo_set_source_rgb (cr, 0, 0.6, 0); + draw_quad (cr, + 1.50, 1.50, + 2.64, 1.63, + 1.75, 2.75, + 0.55, 2.63); + draw_quad (cr, + 0.55, 2.63, + 1.75, 2.75, + 0.98, 4.11, + -0.35, 4.05); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_seams, + "Check the fidelity of the rasterisation.", + "raster", /* keywords */ + "target=raster", /* requirements */ + 500, 300, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bug-source-cu.c b/local/recipes/libs/cairo/source/test/bug-source-cu.c new file mode 100644 index 0000000000..4c1e2bc633 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-source-cu.c @@ -0,0 +1,81 @@ +/* + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "cairo-test.h" + +static cairo_pattern_t * +create_pattern (cairo_surface_t *target) +{ + cairo_surface_t *surface; + cairo_pattern_t *pattern; + cairo_t *cr; + cairo_matrix_t m; + + surface = cairo_surface_create_similar(target, + cairo_surface_get_content (target), + 1000, 600); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_paint(cr); + + pattern = cairo_pattern_create_for_surface (cairo_get_target (cr)); + cairo_destroy(cr); + + cairo_matrix_init_translate (&m, 0, 0.1); // y offset must be non-integer + cairo_pattern_set_matrix (pattern, &m); + return pattern; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + cairo_new_path (cr); + cairo_move_to (cr, 10, 400.1); + cairo_line_to (cr, 990, 400.1); + cairo_line_to (cr, 990, 600); + cairo_line_to (cr, 10, 600); + cairo_close_path (cr); + + pattern = create_pattern (cairo_get_target (cr)); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + cairo_fill(cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_source_cu, + "Exercises a bug discovered in the tracking of unbounded source extents", + "fill", /* keywords */ + NULL, /* requirements */ + 1000, 600, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/bug-spline.c b/local/recipes/libs/cairo/source/test/bug-spline.c new file mode 100644 index 0000000000..9a54a7c8cd --- /dev/null +++ b/local/recipes/libs/cairo/source/test/bug-spline.c @@ -0,0 +1,95 @@ +/* cc `pkg-config --cflags --libs cairo` cairo-spline-image.c -o cairo-spline-image */ + +/* Copyright © 2005 Carl Worth + * Copyright © 2012 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "cairo-test.h" + +#define WIDE_LINE_WIDTH 160 +#define NARROW_LINE_WIDTH 2 + +/* A spline showing bugs in the "contour-based stroking" in cairo 1.12 */ +static const struct spline { + struct { double x, y; } pt[5]; + double line_width; + double rgba[4]; +} splines[] = { + { + { + { 172.25, 156.185 }, + { 177.225, 164.06 }, + { 176.5, 157.5 }, + { 175.5, 159.5 }, + }, + WIDE_LINE_WIDTH, + { 1, 1, 1, 1 }, + }, + { + { + { 571.25, 247.185 }, + { 78.225, 224.06 }, + { 129.5, 312.5 }, + { 210.5, 224.5 }, + }, + NARROW_LINE_WIDTH, + { 1, 0, 0, 1 }, + } +}; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + unsigned n; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_set_line_cap(cr, CAIRO_LINE_CAP_SQUARE); + + for (n = 0; n < ARRAY_LENGTH(splines); n++) { + cairo_set_line_width (cr, splines[n].line_width); + cairo_set_source_rgba (cr, + splines[n].rgba[0], + splines[n].rgba[1], + splines[n].rgba[2], + splines[n].rgba[3]); + + cairo_move_to (cr, splines[n].pt[0].x, splines[n].pt[0].y); + cairo_curve_to (cr, + splines[n].pt[1].x, splines[n].pt[1].y, + splines[n].pt[2].x, splines[n].pt[2].y, + splines[n].pt[3].x, splines[n].pt[3].y); + + cairo_stroke (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_spline, + "Exercises a bug in the stroking of splines", + "spline, stroke", /* keywords */ + NULL, /* requirements */ + 300, 300, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/cairo-logo-font.ttx b/local/recipes/libs/cairo/source/test/cairo-logo-font.ttx new file mode 100644 index 0000000000..9e4b832c0e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/cairo-logo-font.ttx @@ -0,0 +1,539 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Cairo Logo + + + Regular + + + Cairo Logo Regular + + + + + + + + + + + + + + + + + + + + <svg xmlns="http://www.w3.org/2000/svg"></svg> + + + <?xml version="1.0" encoding="utf-8"?> +<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd"> +<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="310" height="508"> + <defs id="cairo-artwork_defs"> + <g id="hacker_emblem"> + <!-- Note: This is similar though not identical to Keith Packard's SVG version + of the hacker emblem (http://www.catb.org/hacker-emblem/glider.svg) --> + <g id="hacker_emblem_grid" fill="white" stroke="none"> + <!-- Outside: Top, Right, Bottom, Left --> + <rect x="-2.95" y="-3.05" width="6" height="0.1" /> + <rect x="2.95" y="-2.95" width="0.1" height="6" /> + <rect x="-3.05" y="2.95" width="6" height="0.1" /> + <rect x="-3.05" y="-3.05" width="0.1" height="6" /> + <!-- Vertical: Left, Right --> + <rect x="-1.05" y="-2.95" width="0.1" height="5.9" /> + <rect x="0.95" y="-2.95" width="0.1" height="5.9" /> + <!-- Horizontal: TopLeft, TopMiddle, TopRight --> + <rect x="-2.95" y="-1.05" width="1.9" height="0.1" /> + <rect x="-0.95" y="-1.05" width="1.9" height="0.1" /> + <rect x="1.05" y="-1.05" width="1.9" height="0.1" /> + <!-- Horizontal: BottomLeft, BottomMiddle, BottomRight --> + <rect x="-2.95" y="0.95" width="1.9" height="0.1" /> + <rect x="-0.95" y="0.95" width="1.9" height="0.1" /> + <rect x="1.05" y="0.95" width="1.9" height="0.1" /> + </g> + <g id="hacker_emblem_dots" fill="white"> + <circle cx="0" cy="-2" r="0.7" /> + <circle cx="2" cy="0" r="0.7" /> + <circle cx="-2" cy="2" r="0.7" /> + <circle cx="0" cy="2" r="0.7" /> + <circle cx="2" cy="2" r="0.7" /> + </g> + </g> + <g id="scarab" fill="#3B80AE"> + <g transform="translate(-150, -170)"> + <path id="scarab_head" d="M205.599,94.567c0-11.668-24.914-21.129-55.628-21.129 + c-30.723,0-55.624,9.46-55.624,21.129c0,10.203,24.901,7.346,55.624,7.346C180.685,101.913,205.599,104.233,205.599,94.567z"/> + <path id="scarab_torso" d="M136.423,161.506c0,0,12.751,12.577,13.547,13.362 + c2.262-2.232,13.545-13.362,13.545-13.362c7.135-7.036,87.111-6.399,91.066-6.363c-0.469-6.298-1.254-12.472-2.325-18.519 + c-15.183-19.279-42.811-32.225-74.485-32.225h-55.518c-31.745,0-59.439,13.011-74.598,32.37c-1.054,6-1.829,12.128-2.296,18.374 + C49.321,155.106,129.288,154.47,136.423,161.506z"/> + <path id="scarab_spine" d="M149.97,301.187c2.005-24.729,8.386-103.483,8.405-103.721 + c-0.09-0.219-6.478-15.578-8.405-20.214c-1.936,4.655-8.316,19.995-8.408,20.214C141.582,197.704,147.965,276.458,149.97,301.187z"/> + <path id="scarab_wing_left" 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d="M0,61c0,33.636,27.364,61,61,61s61-27.364,61-61S94.636,0,61,0S0,27.364,0,61z + M2,61C2,28.467,28.467,2,61,2c32.532,0,59,26.467,59,59c0,32.533-26.468,59-59,59C28.467,120,2,93.533,2,61z"/> + </g> + <use xlink:href="#hacker_emblem" x="0" y="0" transform="scale(9)" /> + </g> + + <!-- scarab dimensions: 300x340 --> + <!-- dung dimensions: 120x120 (radius: 60) --> + <!-- scarab and dung dimensions: 300x400 --> + + <g id="cairo_logo"> + <!-- dimensions: 300x400, centered --> + <!-- The logo (scarab and dung), with the center-point of the bounding box at (0,0) --> + <use xlink:href="#dung" x="0" y="0" transform="translate(0, -140)" /> + <use xlink:href="#scarab" x="0" y="0" transform="translate(0, 30)" /> + </g> + <g id="cairo_logo_dung-centered"> + <!-- The logo (scarab and dung), with the dung at (0,0), the scarab below --> + <use xlink:href="#dung" x="0" y="0" /> + <use xlink:href="#scarab" x="0" y="0" transform="translate(0,170)" /> + </g> + <g id="cairo_logo_scarab-centered"> + <!-- The logo (scarab and dung), with the scarab's rotational center at (0,0), the dung above --> + <!-- The scarab's rotational center in this case is not the center of its bounding box, + but is calculated to be the intersection-point of the torso, spine and wings --> + <use xlink:href="#dung" x="0" y="0" transform="translate(0, -175.85)" /> + <use xlink:href="#scarab" x="0" y="0" transform="translate(0, -5.85)" /> + </g> + <g id="cairo_logo_top-centered"> + <!-- The logo (scarab and dung), with the top-center point of the bounding box at (0,0) --> + <use xlink:href="#dung" x="0" y="0" transform="translate(0, 60)" /> + <use xlink:href="#scarab" x="0" y="0" transform="translate(0, 230)" /><!-- (0,170+60) --> + </g> + <g id="cairo_logo_bottom-centered"> + <!-- The logo (scarab and dung), with the bottom-center point of the bounding box at (0,0) --> + <use xlink:href="#dung" x="0" y="0" transform="translate(0, -340)" /> + <use xlink:href="#scarab" x="0" y="0" transform="translate(0, -170)" /> + </g> + <g id="cairo_logo_right-centered"> + <!-- The logo (scarab and dung), with the right-center point of the bounding box at (0,0) --> + <use xlink:href="#dung" x="0" y="0" transform="translate(-150, -140)" /> + <use xlink:href="#scarab" x="0" y="0" transform="translate(-150, 30)" /> + </g> + <g id="cairo_logo_left-centered"> + <!-- The logo (scarab and dung), with the left-center point of the bounding box at (0,0) --> + <use xlink:href="#dung" x="0" y="0" transform="translate(150, -140)" /> + <use xlink:href="#scarab" x="0" y="0" transform="translate(150, 30)" /> + </g> + <g id="cairo_logo_topleft-centered"> + <!-- The logo (scarab and dung), with the top-left point of the bounding box at (0,0) --> + <use xlink:href="#dung" x="0" y="0" transform="translate(150, 60)" /> + <use xlink:href="#scarab" x="0" y="0" transform="translate(150, 230)" /><!-- (150, 170+60) --> + </g> + <g id="cairo_logo_topright-centered"> + <!-- The logo (scarab and dung), with the top-right point of the bounding box at (0,0) --> + <use xlink:href="#dung" x="0" y="0" transform="translate(-150, 60)" /> + <use xlink:href="#scarab" x="0" y="0" transform="translate(-150, 230)" /><!-- (-150,170+60) --> + </g> + <g id="cairo_logo_bottomleft-centered"> + <!-- The logo (scarab and dung), with the bottom-left point of the bounding box at (0,0) --> + <use xlink:href="#dung" x="0" y="0" transform="translate(150, -340)" /> + <use xlink:href="#scarab" x="0" y="0" transform="translate(150, -170)" /> + </g> + <g id="cairo_logo_bottomright-centered"> + <!-- The logo (scarab and dung), with the bottom-right point of the bounding box at (0,0) --> + <use xlink:href="#dung" x="0" y="0" transform="translate(-150, -340)" /> + <use xlink:href="#scarab" x="0" y="0" transform="translate(-150, -170)" /> + </g> + + <g id="cairo_text" transform="translate(0,-97)"> + <g transform="scale(0.1484,0.1484)"> <g transform="translate(-1139,-208.5)"> + <!-- 63 (c), advance 444, 0 horiBearing 38,522 --> + <path transform="translate(65,0)" d=" + M 412, 433 + C 385, 422 336, 413 298, 413 + C 142, 413 38, 525 38, 680 + C 38, 826 144, 947 298, 947 + C 332, 947 377, 944 416, 926 + L 409, 842 + C 380, 861 340, 871 308, 871 + C 187, 871 138, 771 138, 680 + C 138, 583 197, 489 302, 489 + C 332, 489 368, 496 404, 511 + L 412, 433 " /> + <!-- 61 (a), advance 556, 0 horiBearing 46,522 --> + <path transform="translate(486.75,0)" d=" + M 109, 541 + C 147, 509 204, 489 257, 489 + C 351, 489 383, 534 383, 622 + C 346, 620 320, 620 283, 620 + C 186, 620 46, 660 46, 788 + C 46, 899 123, 947 233, 947 + C 319, 947 369, 900 391, 869 + L 393, 869 + L 393, 935 + L 481, 935 + C 479, 920 477, 893 477, 835 + L 477, 624 + C 477, 485 418, 413 272, 413 + C 207, 413 151, 433 104, 461 + L 109, 541 + M 383, 737 + C 383, 813 334, 871 241, 871 + C 198, 871 146, 842 146, 788 + C 146, 698 272, 690 323, 690 + C 343, 690 363, 692 383, 692 + L 383, 737 " /> + <!-- 69 (i), advance 278, 0 horiBearing 86,730 --> + <path transform="translate(1000,0)" d=" + M 92, 935 + L 186, 935 + L 186, 425 + L 92, 425 + L 92, 935 + M 88, 261 + A 51, 51 0 1 1 190,261 + A 51, 51 0 1 1 88,261" /> + <!-- 72 (r), advance 389, 0 horiBearing 80,522 --> + <path transform="translate(1234.25,0)" d=" + M 80, 935 + L 174, 935 + L 174, 703 + C 174, 575 229, 495 313, 495 + C 329, 495 348, 497 365, 504 + L 365, 420 + C 345, 416 331, 413 303, 413 + C 249, 413 195, 451 170, 504 + L 168, 504 + L 168, 425 + L 80, 425 + L 80, 935 " /> + <!-- 6f (o), advance 611, 0 horiBearing 46,522 --> + <path transform="translate(1610,0)" d=" + M 46, 680 + C 46, 826 152, 947 306, 947 + C 459, 947 565, 826 565, 680 + C 565, 525 461, 413 306, 413 + C 150, 413 46, 525 46, 680 + M 146, 680 + C 146, 583 205, 489 306, 489 + C 406, 489 465, 583 465, 680 + C 465, 771 416, 871 306, 871 + C 195, 871 146, 771 146, 680 " /> + <!-- bounds: 38, 205 <-> 2232, 947 --> + </g> </g> + </g> + + <!-- scaled by 0.72, shifted around to hit pixel boundaries --> + <g id="cairo_text_small" transform="translate(0,-71)"> + <g transform="scale(0.085,0.085)"> <g transform="translate(-1139,-208.5)"> + <!-- 63 (c), advance 444, 0 horiBearing 38,522 --> + <path transform="translate(-151,0)" d=" + M 412, 433 + C 385, 422 336, 413 298, 413 + C 142, 413 38, 525 38, 680 + C 38, 826 144, 947 298, 947 + C 332, 947 377, 944 416, 926 + L 409, 842 + C 380, 861 340, 871 308, 871 + C 187, 871 138, 771 138, 680 + C 138, 583 197, 489 302, 489 + C 332, 489 368, 496 404, 511 + L 412, 433 " /> + <!-- 61 (a), advance 556, 0 horiBearing 46,522 --> + <path transform="translate(379.5,0)" d=" + M 109, 541 + C 147, 509 204, 489 257, 489 + C 351, 489 383, 534 383, 622 + C 346, 620 320, 620 283, 620 + C 186, 620 46, 660 46, 788 + C 46, 899 123, 947 233, 947 + C 319, 947 369, 900 391, 869 + L 393, 869 + L 393, 935 + L 481, 935 + C 479, 920 477, 893 477, 835 + L 477, 624 + C 477, 485 418, 413 272, 413 + C 207, 413 151, 433 104, 461 + L 109, 541 + M 383, 737 + C 383, 813 334, 871 241, 871 + C 198, 871 146, 842 146, 788 + C 146, 698 272, 690 323, 690 + C 343, 690 363, 692 383, 692 + L 383, 737 " /> + <!-- 69 (i), advance 278, 0 horiBearing 86,730 --> + <path transform="translate(1000,0)" d=" + M 92, 935 + L 186, 935 + L 186, 425 + L 92, 425 + L 92, 935 + M 88, 261 + A 51, 51 0 1 1 190,261 + A 51, 51 0 1 1 88,261" /> + <!-- 72 (r), advance 389, 0 horiBearing 80,522 --> + <path transform="translate(1341.5,0)" d=" + M 80, 935 + L 174, 935 + L 174, 703 + C 174, 575 229, 495 313, 495 + C 329, 495 348, 497 365, 504 + L 365, 420 + C 345, 416 331, 413 303, 413 + C 249, 413 195, 451 170, 504 + L 168, 504 + L 168, 425 + L 80, 425 + L 80, 935 " /> + <!-- 6f (o), advance 611, 0 horiBearing 46,522 --> + <path transform="translate(1826,0)" d=" + M 46, 680 + C 46, 826 152, 947 306, 947 + C 459, 947 565, 826 565, 680 + C 565, 525 461, 413 306, 413 + C 150, 413 46, 525 46, 680 + M 146, 680 + C 146, 583 205, 489 306, 489 + C 406, 489 465, 583 465, 680 + C 465, 771 416, 871 306, 871 + C 195, 871 146, 771 146, 680 " /> + <!-- bounds: 38, 205 <-> 2232, 947 --> + </g> </g> + </g> + + <g id="cairo_logo_with_text"> + <!-- The logo (scarab and dung), with the text 'cairo' below, the dot of the 'i' positioned between the hind legs of the scarab --> + <!-- dimensions: 300x490, centered --> + <use xlink:href="#cairo_logo_top-centered" transform="translate(0, -245)" /> + <use xlink:href="#cairo_text" transform="translate(0, 245)" /> + </g> + + <g id="cairo_banner"> + <!-- The logo on the left, the text 'cairo' in the center, and a mirror image of the logo on the right --> + <!-- The logos are scaled such that the scarab body nearly matches the height of the text characters (excepting the 'i') + and the dung should nearly aligns with the dot of the 'i'. The bottoms of the logos are aligned with the bottom of the text. --> + <!-- dimensions: 370x88, centered --> + <use xlink:href="#cairo_logo_bottomleft-centered" transform="translate(-180, 40), scale(0.1944)" /> + <use xlink:href="#cairo_text_small" transform="translate(0, 42)" fill="black" /> + <use xlink:href="#cairo_logo_bottomleft-centered" transform="translate(180, 40), scale(0.1944), scale(-1, 1)" /> + </g> + </defs> + <g transform="translate(5, -500)"> + <use xlink:href="#cairo_logo_with_text" transform="translate(150, 245)" /> + </g> +</svg> + + + + + + diff --git a/local/recipes/libs/cairo/source/test/cairo-svg-test-color.ttx b/local/recipes/libs/cairo/source/test/cairo-svg-test-color.ttx new file mode 100644 index 0000000000..a915a704b7 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/cairo-svg-test-color.ttx @@ -0,0 +1,362 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Cairo Svg Test Color + + + Regular + + + Cairo Svg Test Color Regular + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <svg xmlns="http://www.w3.org/2000/svg"></svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <rect x="100" y="-750" width="800" height="500" + fill="var(--color0, red)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <rect x="100" y="-750" width="800" height="500" + fill="var(--color1, blue)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <rect x="100" y="-750" width="800" height="500" + fill="currentColor" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <rect x="100" y="-750" width="800" height="500" + fill="currentColor" fill-opacity="0.5" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <defs> + <linearGradient id="grad" x1="33%" x21="66%"> + <stop offset="0%" stop-color="currentColor" stop-opacity="1" /> + <stop offset="100%" stop-color="red" stop-opacity="1" /> + </linearGradient> + </defs> + <rect x="100" y="-900" width="800" height="800" fill="url(#grad)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <defs> + <linearGradient id="grad" x1="33%" x21="66%"> + <stop offset="0%" stop-color="currentColor" stop-opacity="0.3" /> + <stop offset="100%" stop-color="red" stop-opacity="0.3" /> + </linearGradient> + </defs> + <rect x="100" y="-900" width="800" height="800" fill="url(#grad)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <defs> + <radialGradient id="grad" cx="50%" cy="50%" + fx="0.75" fy="0.35" r="0.5"> + <stop offset="0%" stop-color="currentColor" stop-opacity="1" /> + <stop offset="100%" stop-color="blue" stop-opacity="1" /> + </radialGradient> + </defs> + <rect x="100" y="-900" width="800" height="800" fill="url(#grad)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <defs> + <radialGradient id="grad" cx="50%" cy="50%" + fx="0.75" fy="0.35" r="0.5"> + <stop offset="0%" stop-color="currentColor" stop-opacity="0.5" /> + <stop offset="100%" stop-color="blue" stop-opacity="0.5" /> + </radialGradient> + </defs> + <rect x="100" y="-900" width="800" height="800" fill="url(#grad)" /> +</svg> + + + + diff --git a/local/recipes/libs/cairo/source/test/cairo-svg-test-doc.ttx b/local/recipes/libs/cairo/source/test/cairo-svg-test-doc.ttx new file mode 100644 index 0000000000..c2cdb2817c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/cairo-svg-test-doc.ttx @@ -0,0 +1,689 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Cairo Svg Test Doc + + + Regular + + + Cairo Svg Test Doc Regular + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <svg xmlns="http://www.w3.org/2000/svg"></svg> + + + <svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"> + <rect x="10" y="-90" width="80" height="80" + fill="none" stroke="black" stroke-width="10"/> +</svg> + + + <svg viewBox="-5 -5 10 10" xmlns="http://www.w3.org/2000/svg"> + <rect x="-4" y="-14" width="8" height="8" + fill="none" stroke="black" stroke-width="1"/> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg" + xmlns:xlink="http://www.w3.org/1999/xlink"> + <image x="0" y="-1000" width="1000" height="1000" + xlink:href="data:image/png;base64, +iVBORw0KGgoAAAANSUhEUgAAADIAAAAyCAYAAAAeP4ixAAABhWlDQ1BJQ0MgcHJvZmlsZQAAKJF9 +kT1Iw0AYht+m1opUHOwgopChOlkQFXXUKhShQqkVWnUwufQPmjQkKS6OgmvBwZ/FqoOLs64OroIg ++APi6OSk6CIlfpcUWsR4x3EP733vy913gFAvM9XsGANUzTJS8ZiYya6KwVd0YggBmtMSM/W5ZDIB +z/F1Dx/f76I8y7vuz9Gj5EwG+ETiWaYbFvEG8dSmpXPeJw6zoqQQnxOPGnRB4keuyy6/cS44LPDM +sJFOzROHicVCG8ttzIqGSjxJHFFUjfKFjMsK5y3OarnKmvfkLwzltJVlrtMaRByLWEISImRUUUIZ +FqK0a6SYSNF5zMM/4PiT5JLJVQIjxwIqUCE5fvA/+N1bMz8x7iaFYkDgxbY/hoHgLtCo2fb3sW03 +TgD/M3CltfyVOjDzSXqtpUWOgN5t4OK6pcl7wOUO0P+kS4bkSH5aQj4PvJ/RN2WBvluge83tW/Mc +pw9AmnqVuAEODoGRAmWve7y7q71v/9Y0+/cDaP1yo4gSHTAAAAAGYktHRAD/AP8A/6C9p5MAAAAJ +cEhZcwAALiMAAC4jAXilP3YAAAAHdElNRQfmBh0FBzE5rnzLAAAAGXRFWHRDb21tZW50AENyZWF0 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<stop offset="100%" stop-color="red" stop-opacity="0.5" /> + </linearGradient> + </defs> + <rect x="100" y="-900" width="800" height="800" fill="url(#grad)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <defs> + <linearGradient id="grad" x1="33%" x2="66%" + spreadMethod="reflect"> + <stop offset="0%" stop-color="blue" stop-opacity="1" /> + <stop offset="100%" stop-color="red" stop-opacity="1" /> + </linearGradient> + </defs> + <rect x="0" y="-900" width="1000" height="800" fill="url(#grad)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <defs> + <linearGradient id="grad" x1="33%" x2="66%" + spreadMethod="repeat"> + <stop offset="0%" stop-color="blue" stop-opacity="1" /> + <stop offset="100%" stop-color="red" stop-opacity="1" /> + </linearGradient> + </defs> + <rect x="0" y="-900" width="1000" height="800" fill="url(#grad)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <defs> + <linearGradient id="grad" x1="300" y1="-500" x2="600" y2="-500" + gradientUnits="userSpaceOnUse"> + <stop offset="0%" stop-color="blue" stop-opacity="1" /> + <stop offset="100%" stop-color="red" stop-opacity="1" /> + </linearGradient> + </defs> + <rect x="0" y="-900" width="1000" height="800" fill="url(#grad)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <defs> + <linearGradient id="grad" gradientTransform="rotate(45)"> + <stop offset="0%" stop-color="blue" stop-opacity="1" /> + <stop offset="100%" stop-color="red" stop-opacity="1" /> + </linearGradient> + </defs> + <rect x="100" y="-900" width="800" height="800" fill="url(#grad)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <defs> + <radialGradient id="grad" cx="50%" cy="50%" + fx="0.75" fy="0.35" r="0.5"> + <stop offset="0%" stop-color="white" stop-opacity="1" /> + <stop offset="100%" stop-color="green" stop-opacity="1" /> + </radialGradient> + </defs> + <rect x="100" y="-900" width="800" height="800" fill="url(#grad)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <defs> + <radialGradient id="grad" cx="75%" cy="25%" r="33%" + fx="0.64" fy="0.18" fr="0.17" + spreadMethod="reflect" > + <stop offset="0%" stop-color="white" stop-opacity="1" /> + <stop offset="100%" stop-color="green" stop-opacity="1" /> + </radialGradient> + </defs> + <rect x="100" y="-900" width="800" height="800" fill="url(#grad)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <defs> + <radialGradient id="grad" cx="75%" cy="25%" r="33%" + fx="0.64" fy="0.18" fr="0.17" + spreadMethod="repeat" > + <stop offset="0%" stop-color="white" stop-opacity="1" /> + <stop offset="100%" stop-color="green" stop-opacity="1" /> + </radialGradient> + </defs> + <rect x="100" y="-900" width="800" height="800" fill="url(#grad)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <defs> + <radialGradient id="grad" cx="450" cy="-550" r="400" + fx="600" fy="-400" fr="10" + gradientUnits="userSpaceOnUse" > + <stop offset="0%" stop-color="red" stop-opacity="1" /> + <stop offset="100%" stop-color="green" stop-opacity="0.5" /> + </radialGradient> + </defs> + <rect x="0" y="-1000" width="1000" height="1000" fill="url(#grad)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <defs> + <radialGradient id="grad" cx="50%" cy="25%" + fx="0.75" fy="0.35" r="0.5" + gradientTransform="scale(1, 2)"> + <stop offset="0%" stop-color="red" stop-opacity="1" /> + <stop offset="100%" stop-color="green" stop-opacity="1" /> + </radialGradient> + </defs> + <rect x="100" y="-900" width="800" height="800" fill="url(#grad)" /> +</svg> + + + + diff --git a/local/recipes/libs/cairo/source/test/cairo-svg-test-path.ttx b/local/recipes/libs/cairo/source/test/cairo-svg-test-path.ttx new file mode 100644 index 0000000000..9173a537d1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/cairo-svg-test-path.ttx @@ -0,0 +1,281 @@ + + + + + + + + + + + + + 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stroke="black" stroke-width="20" + d="M200,-300 + Q400,-50 + 600,-300 + T1000,-300" + /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <path fill="none" stroke="black" stroke-width="20" + d="M500,-500 + L 712 -712 + A300,300 0 1,0 712, -288 z" + /> +</svg> + + + + diff --git a/local/recipes/libs/cairo/source/test/cairo-svg-test-shapes.ttx b/local/recipes/libs/cairo/source/test/cairo-svg-test-shapes.ttx new file mode 100644 index 0000000000..15a573a64f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/cairo-svg-test-shapes.ttx @@ -0,0 +1,333 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 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points="100, -100, + 300, -100, + 300, -300, + 500, -300, + 500, -500, + 700, -500 + 700, -700 + 900, -700 + 900, -900" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg" width="500" height="500"> +<polygon points="350, -75 + 379, -161 + 469, -161 + 397, -215 + 423, -301 + 350, -250 + 277, -301 + 303, -215 + 231, -161 + 321, -161" /> +</svg> + + + + diff --git a/local/recipes/libs/cairo/source/test/cairo-svg-test-stroke.ttx b/local/recipes/libs/cairo/source/test/cairo-svg-test-stroke.ttx new file mode 100644 index 0000000000..a403da928b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/cairo-svg-test-stroke.ttx @@ -0,0 +1,608 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 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y2="-500" + fill="none" + stroke-width="100" + stroke="#A5A" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <line x1="100" y1="-500" x2="900" y2="-500" + fill="none" + stroke-width="100" + stroke="rgb(75,0,130)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <line x1="100" y1="-500" x2="900" y2="-500" + fill="none" + stroke-width="100" + stroke="currentColor" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <line x1="100" y1="-500" x2="900" y2="-500" + fill="none" + stroke-width="100" + stroke="var(--color1, red)" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <line x1="100" y1="-500" x2="900" y2="-500" + fill="none" + stroke-width="100" + stroke="magenta" stroke-opacity="0.5" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg" + color="green" > + <line x1="100" y1="-500" x2="900" y2="-500" + fill="none" + stroke-width="100" + stroke="currentColor" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <line x1="100" y1="-900" x2="900" y2="-900" + fill="none" + stroke-width="100" + stroke="black" /> + <line x1="100" y1="-500" x2="900" y2="-500" + fill="none" + stroke-width="200" + stroke="black" /> + <line x1="100" y1="-100" x2="900" y2="-100" + fill="none" + stroke-width="300" + stroke="black" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <line x1="100" y1="-900" x2="900" y2="-900" + fill="none" + stroke-width="200" + stroke-linecap="butt" + stroke="black" /> + <line x1="100" y1="-500" x2="900" y2="-500" + fill="none" + stroke-width="200" + stroke-linecap="round" + stroke="black" /> + <line x1="100" y1="-100" x2="900" y2="-100" + fill="none" + stroke-width="200" + stroke-linecap="square" + stroke="black" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <line x1="100" y1="-950" x2="900" y2="-950" + fill="none" + stroke-width="100" + stroke-dasharray="none" + stroke="black" /> + <line x1="100" y1="-750" x2="900" y2="-750" + fill="none" + stroke-width="100" + stroke-dasharray="200" + stroke="black" /> + <line x1="100" y1="-550" x2="900" y2="-550" + fill="none" + stroke-width="100" + stroke-dasharray="200 50" + stroke="black" /> + <line x1="100" y1="-350" x2="900" y2="-350" + fill="none" + stroke-width="100" + stroke-dasharray="200 50 100" + stroke="black" /> + <line x1="100" y1="-150" x2="900" y2="-150" + fill="none" + stroke-width="100" + stroke-dasharray="200 50 100 150" + stroke="black" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <line x1="100" y1="-950" x2="900" y2="-950" + fill="none" + stroke-width="100" + stroke-dasharray="none" + stroke="black" /> + <line x1="100" y1="-750" x2="900" y2="-750" + fill="none" + stroke-width="100" + stroke-dasharray="200" + stroke-dashoffset="100" + stroke="black" /> + <line x1="100" y1="-550" x2="900" y2="-550" + fill="none" + stroke-width="100" + stroke-dasharray="200 50" + stroke-dashoffset="100" + stroke="black" /> + <line x1="100" y1="-350" x2="900" y2="-350" + fill="none" + stroke-width="100" + stroke-dasharray="200 50 100" + stroke-dashoffset="100" + stroke="black" /> + <line x1="100" y1="-150" x2="900" y2="-150" + fill="none" + stroke-width="100" + stroke-dasharray="200 50 100 150" + stroke-dashoffset="100" + stroke="black" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <polyline + points="100, -200 + 900, -400 + 100, -700" + fill="none" + stroke-width="200" + stroke-linejoin="miter" + stroke="black" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <polyline + points="100, -200 + 900, -400 + 100, -700" + fill="none" + stroke-width="200" + stroke-linejoin="round" + stroke="black" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <polyline + points="100, -200 + 900, -400 + 100, -700" + fill="none" + stroke-width="200" + stroke-linejoin="bevel" + stroke="black" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg"> + <polyline + points="100, -200 + 900, -400 + 100, -700" + fill="none" + stroke-width="200" + stroke-linejoin="miter" + stroke-miterlimit="2" + stroke="black" /> +</svg> + + + + diff --git a/local/recipes/libs/cairo/source/test/cairo-svg-test-transform.ttx b/local/recipes/libs/cairo/source/test/cairo-svg-test-transform.ttx new file mode 100644 index 0000000000..1f07c05ad9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/cairo-svg-test-transform.ttx @@ -0,0 +1,403 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 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xmlns:xlink="http://www.w3.org/1999/xlink"> + <defs> + <rect id="square" width="300" height="300"/> + </defs> + <use xlink:href="#square" transform="translate(100, -900)"/> + <g transform="translate(600, -600)"> + <use xlink:href="#square" transform="matrix(1, 0.4, -0.6, 1.1, 50, -70)"/> + </g> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg" + xmlns:xlink="http://www.w3.org/1999/xlink"> + <defs> + <path id="heart" d="M 10,30 A 20,20 0,0,1 50,30 A 20,20 0,0,1 90,30 Q 90,60 50,90 Q 10,60 10,30 z" /> + </defs> + <use xlink:href="#heart" + transform="translate(10, -650) + rotate(-10 50 100) + translate(-166 125.5) + skewX(40) + scale(1 0.5),scale(8, 8)" + fill="grey"/> + <use xlink:href="#heart" + transform="translate(300, -800),scale(6, 6)" + fill="none" stroke="red" /> +</svg> + + + <svg version="1.1" xmlns="http://www.w3.org/2000/svg" + xmlns:xlink="http://www.w3.org/1999/xlink"> + <defs> + <circle id="c1" + cx="100" cy="100" r="80" + fill="none" + stroke="black" + stroke-width="20" /> + <circle id="c2" + cx="100" cy="100" r="80" + fill="none" + stroke="black" + stroke-width="20" + transform="scale(3,3)" /> + </defs> + + <use xlink:href="#c1" x="100" y="-900"/> + <use xlink:href="#c2" x="300" y="-700"/> + +</svg> + + + + diff --git a/local/recipes/libs/cairo/source/test/cairo-test-private.h b/local/recipes/libs/cairo/source/test/cairo-test-private.h new file mode 100644 index 0000000000..cfd22de4e1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/cairo-test-private.h @@ -0,0 +1,72 @@ +/* + * Copyright © 2004 Red Hat, Inc. + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + * Chris Wilson + */ + +#ifndef _CAIRO_TEST_PRIVATE_H_ +#define _CAIRO_TEST_PRIVATE_H_ + +#include "cairo-test.h" + +/* For communication between the core components of cairo-test and not + * for the tests themselves. + */ + +CAIRO_BEGIN_DECLS + +typedef enum { + DIRECT, + SIMILAR +} cairo_test_similar_t; + +cairo_test_similar_t +cairo_test_target_has_similar (const cairo_test_context_t *ctx, + const cairo_boilerplate_target_t *target); + +cairo_test_status_t +_cairo_test_context_run_for_target (cairo_test_context_t *ctx, + const cairo_boilerplate_target_t *target, + cairo_bool_t similar, + int dev_offset, int dev_scale); + +void +_cairo_test_context_init_for_test (cairo_test_context_t *ctx, + const cairo_test_context_t *parent, + const cairo_test_t *test); + +void +cairo_test_init (cairo_test_context_t *ctx, + const char *test_name, + const char *output); + +void +cairo_test_fini (cairo_test_context_t *ctx); + +void +_cairo_test_runner_register_tests (void); + +CAIRO_END_DECLS + +#endif /* _CAIRO_TEST_PRIVATE_H_ */ diff --git a/local/recipes/libs/cairo/source/test/cairo-test-runner.c b/local/recipes/libs/cairo/source/test/cairo-test-runner.c new file mode 100644 index 0000000000..acbb539308 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/cairo-test-runner.c @@ -0,0 +1,1162 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test-private.h" +#include "cairo-boilerplate-getopt.h" + +#include /* for version information */ + +#define SHOULD_FORK HAVE_FORK && HAVE_WAITPID +#if HAVE_UNISTD_H +#include +#endif +#if SHOULD_FORK +#if HAVE_SIGNAL_H +#include +#endif +#include +#include +#endif +#if HAVE_LIBGEN_H +#include +#endif + +#if HAVE_VALGRIND +#include +#else +#define RUNNING_ON_VALGRIND 0 +#endif + +#ifdef _MSC_VER +#include +#endif + +typedef struct _cairo_test_list { + const cairo_test_t *test; + struct _cairo_test_list *next; +} cairo_test_list_t; + +typedef struct _cairo_test_runner { + cairo_test_context_t base; + + unsigned int num_device_offsets; + unsigned int num_device_scales; + + cairo_bool_t passed; + int num_passed; + int num_skipped; + int num_failed; + int num_xfailed; + int num_error; + int num_crashed; + + unsigned int num_ignored_via_env; + + cairo_test_list_t *crashes_preamble; + cairo_test_list_t *errors_preamble; + cairo_test_list_t *fails_preamble; + + cairo_test_list_t **crashes_per_target; + cairo_test_list_t **errors_per_target; + cairo_test_list_t **fails_per_target; + + int *num_failed_per_target; + int *num_error_per_target; + int *num_crashed_per_target; + + cairo_bool_t foreground; + cairo_bool_t exit_on_failure; + cairo_bool_t list_only; + cairo_bool_t full_test; + cairo_bool_t keyword_match; + cairo_bool_t slow; + cairo_bool_t force_pass; +} cairo_test_runner_t; + +typedef enum { + GE, + GT +} cairo_test_compare_op_t; + +static cairo_test_list_t *tests; + +static void CAIRO_BOILERPLATE_PRINTF_FORMAT(2,3) +_log (cairo_test_context_t *ctx, + const char *fmt, + ...) +{ + va_list ap; + + va_start (ap, fmt); + vprintf (fmt, ap); + va_end (ap); + + va_start (ap, fmt); + cairo_test_logv (ctx, fmt, ap); + va_end (ap); +} + +static cairo_test_list_t * +_list_prepend (cairo_test_list_t *head, const cairo_test_t *test) +{ + cairo_test_list_t *list; + + list = xmalloc (sizeof (cairo_test_list_t)); + list->test = test; + list->next = head; + head = list; + + return head; +} + +static cairo_test_list_t * +_list_reverse (cairo_test_list_t *head) +{ + cairo_test_list_t *list, *next; + + for (list = head, head = NULL; list != NULL; list = next) { + next = list->next; + list->next = head; + head = list; + } + + return head; +} + +static void +_list_free (cairo_test_list_t *list) +{ + while (list != NULL) { + cairo_test_list_t *next = list->next; + free (list); + list = next; + } +} + +static cairo_bool_t +is_running_under_debugger (void) +{ +#if HAVE_UNISTD_H && HAVE_LIBGEN_H && __linux__ + char buf[1024] = { 0 }; + char buf2[1024] = { 0 }; + + sprintf (buf, "/proc/%d/exe", getppid ()); + if (readlink (buf, buf2, sizeof (buf2)) != -1 && + buf2[1023] == 0 && + strncmp (basename (buf2), "gdb", 3) == 0) + { + return TRUE; + } +#endif + + if (RUNNING_ON_VALGRIND) + return TRUE; + + return FALSE; +} + +#if SHOULD_FORK +static cairo_test_status_t +_cairo_test_wait (pid_t pid) +{ + int exitcode; + + if (waitpid (pid, &exitcode, 0) != pid) + return CAIRO_TEST_CRASHED; + + if (WIFSIGNALED (exitcode)) { + switch (WTERMSIG (exitcode)) { + case SIGINT: +#if HAVE_RAISE + raise (SIGINT); +#endif + return CAIRO_TEST_UNTESTED; + default: + return CAIRO_TEST_CRASHED; + } + } + + return WEXITSTATUS (exitcode); +} +#endif + +static cairo_test_status_t +_cairo_test_runner_preamble (cairo_test_runner_t *runner, + cairo_test_context_t *ctx) +{ +#if SHOULD_FORK + if (! runner->foreground) { + pid_t pid; + + /* fork() duplicates output buffers, so clear them */ + fflush (NULL); + + switch ((pid = fork ())) { + case -1: /* error */ + return CAIRO_TEST_UNTESTED; + + case 0: /* child */ + exit (ctx->test->preamble (ctx)); + + default: + return _cairo_test_wait (pid); + } + } +#endif + return ctx->test->preamble (ctx); +} + +static cairo_test_status_t +_cairo_test_runner_draw (cairo_test_runner_t *runner, + cairo_test_context_t *ctx, + const cairo_boilerplate_target_t *target, + cairo_bool_t similar, + int device_offset, int device_scale) +{ +#if SHOULD_FORK + if (! runner->foreground) { + pid_t pid; + + /* fork() duplicates output buffers, so clear them */ + fflush (NULL); + + switch ((pid = fork ())) { + case -1: /* error */ + return CAIRO_TEST_UNTESTED; + + case 0: /* child */ + exit (_cairo_test_context_run_for_target (ctx, target, + similar, device_offset, device_scale)); + + default: + return _cairo_test_wait (pid); + } + } +#endif + return _cairo_test_context_run_for_target (ctx, target, + similar, device_offset, device_scale); +} + +static void +append_argv (int *argc, char ***argv, const char *str) +{ + int old_argc; + char **old_argv; + cairo_bool_t doit; + const char *s, *t; + int olen; + int len; + int i; + int args_to_add = 0; + + if (str == NULL) + return; + + old_argc = *argc; + old_argv = *argv; + + doit = FALSE; + do { + if (doit) + *argv = xmalloc (olen); + + olen = sizeof (char *) * (args_to_add + *argc); + for (i = 0; i < old_argc; i++) { + len = strlen (old_argv[i]) + 1; + if (doit) { + (*argv)[i] = (char *) *argv + olen; + memcpy ((*argv)[i], old_argv[i], len); + } + olen += len; + } + + s = str; + while ((t = strpbrk (s, " \t,:;")) != NULL) { + if (t - s) { + len = t - s; + if (doit) { + (*argv)[i] = (char *) *argv + olen; + memcpy ((*argv)[i], s, len); + (*argv)[i][len] = '\0'; + } else { + olen += sizeof (char *); + } + args_to_add++; + olen += len + 1; + i++; + } + s = t + 1; + } + if (*s != '\0') { + len = strlen (s) + 1; + if (doit) { + (*argv)[i] = (char *) *argv + olen; + memcpy ((*argv)[i], s, len); + } else { + olen += sizeof (char *); + } + args_to_add++; + olen += len; + i++; + } + } while (doit++ == FALSE); + *argc = i; +} + +static void +usage (const char *argv0) +{ + fprintf (stderr, + "Usage: %s [-afkxsl] [test-names|keywords ...]\n" + "\n" + "Run the cairo conformance test suite over the given tests (all by default)\n" + "The command-line arguments are interpreted as follows:\n" + "\n" + " -a all; run the full set of tests. By default the test suite\n" + " skips similar surface and device offset testing.\n" + " -f foreground; do not fork\n" + " -k match tests by keyword\n" + " -l list only; just list selected test case names without executing\n" + " -s include slow, long running tests\n" + " -x exit on first failure\n" + "\n" + "If test names are given they are used as matches either to a specific\n" + "test case or to a keyword, so a command such as\n" + "\"%s -k text\" can be used to run all text test cases, and\n" + "\"%s text-transform\" to run the individual case.\n", + argv0, argv0, argv0); +} + +static void +_parse_cmdline (cairo_test_runner_t *runner, int *argc, char **argv[]) +{ + int c; + + while (1) { + c = _cairo_getopt (*argc, *argv, ":afklsx"); + if (c == -1) + break; + + switch (c) { + case 'a': + runner->full_test = ~0; + break; + case 'f': + runner->foreground = TRUE; + break; + case 'k': + runner->keyword_match = TRUE; + break; + case 'l': + runner->list_only = TRUE; + break; + case 's': + runner->slow = TRUE; + break; + case 'x': + runner->exit_on_failure = TRUE; + break; + default: + fprintf (stderr, "Internal error: unhandled option: %c\n", c); + /* fall-through */ + case '?': + usage ((*argv)[0]); + exit (1); + } + } + + *argc -= optind; + *argv += optind; +} + +static void +_runner_init (cairo_test_runner_t *runner) +{ + cairo_test_init (&runner->base, "cairo-test-suite", "."); + + runner->passed = TRUE; + + runner->fails_preamble = NULL; + runner->crashes_preamble = NULL; + runner->errors_preamble = NULL; + + runner->fails_per_target = xcalloc (sizeof (cairo_test_list_t *), + runner->base.num_targets); + runner->crashes_per_target = xcalloc (sizeof (cairo_test_list_t *), + runner->base.num_targets); + runner->errors_per_target = xcalloc (sizeof (cairo_test_list_t *), + runner->base.num_targets); + runner->num_failed_per_target = xcalloc (sizeof (int), + runner->base.num_targets); + runner->num_error_per_target = xcalloc (sizeof (int), + runner->base.num_targets); + runner->num_crashed_per_target = xcalloc (sizeof (int), + runner->base.num_targets); +} + +static void +_runner_print_versions (cairo_test_runner_t *runner) +{ + _log (&runner->base, + "Compiled against cairo %s, running on %s.\n", + CAIRO_VERSION_STRING, cairo_version_string ()); + _log (&runner->base, + "Compiled against pixman %s, running on %s.\n", + PIXMAN_VERSION_STRING, pixman_version_string ()); + + fflush (runner->base.log_file); +} + +static void +_runner_print_summary (cairo_test_runner_t *runner) +{ + _log (&runner->base, + "%d Passed, %d Failed [%d crashed, %d expected], %d Skipped\n", + runner->num_passed, + + runner->num_failed + runner->num_crashed + runner->num_xfailed, + runner->num_crashed, + runner->num_xfailed, + + runner->num_skipped); + if (runner->num_ignored_via_env) { + _log (&runner->base, + "%d expected failure due to special request via environment variables!\n", + runner->num_ignored_via_env); + } +} + +static void +_runner_print_details (cairo_test_runner_t *runner) +{ + cairo_test_list_t *list; + unsigned int n; + + if (runner->crashes_preamble) { + int count = 0; + + for (list = runner->crashes_preamble; list != NULL; list = list->next) + count++; + + _log (&runner->base, "Preamble: %d crashed! -", count); + + for (list = runner->crashes_preamble; list != NULL; list = list->next) { + char *name = cairo_test_get_name (list->test); + _log (&runner->base, " %s", name); + free (name); + } + _log (&runner->base, "\n"); + } + if (runner->errors_preamble) { + int count = 0; + + for (list = runner->errors_preamble; list != NULL; list = list->next) + count++; + + _log (&runner->base, "Preamble: %d error -", count); + + for (list = runner->errors_preamble; list != NULL; list = list->next) { + char *name = cairo_test_get_name (list->test); + _log (&runner->base, " %s", name); + free (name); + } + _log (&runner->base, "\n"); + } + if (runner->fails_preamble) { + int count = 0; + + for (list = runner->fails_preamble; list != NULL; list = list->next) + count++; + + _log (&runner->base, "Preamble: %d failed -", count); + + for (list = runner->fails_preamble; list != NULL; list = list->next) { + char *name = cairo_test_get_name (list->test); + _log (&runner->base, " %s", name); + free (name); + } + _log (&runner->base, "\n"); + } + + for (n = 0; n < runner->base.num_targets; n++) { + const cairo_boilerplate_target_t *target; + + target = runner->base.targets_to_test[n]; + if (runner->num_crashed_per_target[n]) { + _log (&runner->base, "%s (%s): %d crashed! -", + target->name, + cairo_boilerplate_content_name (target->content), + runner->num_crashed_per_target[n]); + + for (list = runner->crashes_per_target[n]; + list != NULL; + list = list->next) + { + char *name = cairo_test_get_name (list->test); + _log (&runner->base, " %s", name); + free (name); + } + _log (&runner->base, "\n"); + } + if (runner->num_error_per_target[n]) { + _log (&runner->base, "%s (%s): %d error -", + target->name, + cairo_boilerplate_content_name (target->content), + runner->num_error_per_target[n]); + + for (list = runner->errors_per_target[n]; + list != NULL; + list = list->next) + { + char *name = cairo_test_get_name (list->test); + _log (&runner->base, " %s", name); + free (name); + } + _log (&runner->base, "\n"); + } + + if (runner->num_failed_per_target[n]) { + _log (&runner->base, "%s (%s): %d failed -", + target->name, + cairo_boilerplate_content_name (target->content), + runner->num_failed_per_target[n]); + + for (list = runner->fails_per_target[n]; + list != NULL; + list = list->next) + { + char *name = cairo_test_get_name (list->test); + _log (&runner->base, " %s", name); + free (name); + } + _log (&runner->base, "\n"); + } + } +} + +static void +_runner_print_results (cairo_test_runner_t *runner) +{ + _runner_print_summary (runner); + _runner_print_details (runner); + + if (! runner->passed && ! runner->num_crashed) { + _log (&runner->base, +"\n" +"Note: These failures may be due to external factors.\n" +"Please read test/README -- \"Getting the elusive zero failures\".\n"); + } +} + +static cairo_test_status_t +_runner_fini (cairo_test_runner_t *runner) +{ + unsigned int n; + + _list_free (runner->crashes_preamble); + _list_free (runner->errors_preamble); + _list_free (runner->fails_preamble); + + for (n = 0; n < runner->base.num_targets; n++) { + _list_free (runner->crashes_per_target[n]); + _list_free (runner->errors_per_target[n]); + _list_free (runner->fails_per_target[n]); + } + free (runner->crashes_per_target); + free (runner->errors_per_target); + free (runner->fails_per_target); + + free (runner->num_crashed_per_target); + free (runner->num_error_per_target); + free (runner->num_failed_per_target); + + cairo_test_fini (&runner->base); + + if (runner->force_pass) + return CAIRO_TEST_SUCCESS; + + return runner->num_failed + runner->num_crashed ? + CAIRO_TEST_FAILURE : + runner->num_passed + runner->num_xfailed ? + CAIRO_TEST_SUCCESS : CAIRO_TEST_UNTESTED; +} + +static cairo_bool_t +expect_fail_due_to_env_var (cairo_test_context_t *ctx, + const cairo_boilerplate_target_t *target) +{ + const char *prefix = "CAIRO_TEST_IGNORE_"; + const char *content = cairo_boilerplate_content_name (target->content); + char *env_name; + const char *env; + cairo_bool_t result = FALSE; + char *to_replace; + + /* Construct the name of the env var */ + env_name = malloc (strlen (prefix) + strlen (target->name) + 1 + strlen (content) + 1); + if (env_name == NULL) { + fprintf(stderr, "Malloc failed, cannot check $%s%s_%s\n", prefix, target->name, content); + cairo_test_log(ctx, "Malloc failed, cannot check $%s%s_%s\n", prefix, target->name, content); + return FALSE; + } + strcpy (env_name, prefix); + strcat (env_name, target->name); + strcat (env_name, "_"); + strcat (env_name, content); + + /* Deal with some invalid characters: Replace '-' and '&' with '_' */ + while ((to_replace = strchr(env_name, '-')) != NULL) { + *to_replace = '_'; + } + while ((to_replace = strchr(env_name, '&')) != NULL) { + *to_replace = '_'; + } + + env = getenv (env_name); + + /* Look for the test name in the env var (comma separated) */ + if (env) { + for (size_t start = 0;; start += strlen (ctx->test_name)) { + char *match = strstr (env + start, ctx->test_name); + if (!match) + break; + + /* Make sure that "foo" does not match in "barfoo,foobaz" + * There must be commas around the test name (or string begin/end) + */ + if (env == match || match[-1] == ',') { + char *end = match + strlen (ctx->test_name); + if (*end == '\0' || *end == ',') { + result = TRUE; + break; + } + } + } + } + if (result) + cairo_test_log (ctx, + "Expecting '%s' to fail because it appears in $%s\n", + ctx->test_name, env_name); + + free (env_name); + + return result; +} + + +static cairo_bool_t +_version_compare (int a, cairo_test_compare_op_t op, int b) +{ + switch (op) { + case GT: return a > b; + case GE: return a >= b; + default: return FALSE; + } +} + + +static cairo_bool_t +_get_required_version (const char *str, + cairo_test_compare_op_t *op, + int *major, + int *minor, + int *micro) +{ + while (*str == ' ') + str++; + + if (strncmp (str, ">=", 2) == 0) { + *op = GE; + str += 2; + } else if (strncmp (str, ">", 1) == 0) { + *op = GT; + str += 1; + } else + return FALSE; + + while (*str == ' ') + str++; + + if (sscanf (str, "%d.%d.%d", major, minor, micro) != 3) { + *micro = 0; + if (sscanf (str, "%d.%d", major, minor) != 2) + return FALSE; + } + + return TRUE; +} + +static cairo_bool_t +_has_required_cairo_version (const char *str) +{ + cairo_test_compare_op_t op; + int major, minor, micro; + + if (! _get_required_version (str + 5 /* advance over "cairo" */, + &op, &major, &minor, µ)) + { + fprintf (stderr, "unrecognised cairo version requirement '%s'\n", str); + return FALSE; + } + + return _version_compare (cairo_version (), + op, + CAIRO_VERSION_ENCODE (major, minor, micro)); +} + +#define TEST_SIMILAR 0x1 +#define TEST_OFFSET 0x2 +#define TEST_SCALE 0x4 +int +main (int argc, char **argv) +{ + cairo_test_runner_t runner; + cairo_test_list_t *test_list; + cairo_test_status_t *target_status; + unsigned int n, m, k; + char targets[4096]; + int len; + char *cairo_tests_env; + +#ifdef _MSC_VER + /* We don't want an assert dialog, we want stderr */ + _CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_FILE); + _CrtSetReportFile(_CRT_ERROR, _CRTDBG_FILE_STDERR); +#endif + + _cairo_test_runner_register_tests (); + tests = _list_reverse (tests); + + memset (&runner, 0, sizeof (runner)); + runner.num_device_offsets = 1; + runner.num_device_scales = 1; + + if (is_running_under_debugger ()) + runner.foreground = TRUE; + + if (getenv ("CAIRO_TEST_MODE")) { + const char *env = getenv ("CAIRO_TEST_MODE"); + + if (strstr (env, "full")) { + runner.full_test = ~0; + } + if (strstr (env, "similar")) { + runner.full_test |= TEST_SIMILAR; + } + if (strstr (env, "offset")) { + runner.full_test |= TEST_OFFSET; + } + if (strstr (env, "scale")) { + runner.full_test |= TEST_SCALE; + } + if (strstr (env, "foreground")) { + runner.foreground = TRUE; + } + if (strstr (env, "exit-on-failure")) { + runner.exit_on_failure = TRUE; + } + } + + if (getenv ("CAIRO_TEST_FORCE_PASS")) { + const char *env = getenv ("CAIRO_TEST_FORCE_PASS"); + + runner.force_pass = atoi (env); + } + + _parse_cmdline (&runner, &argc, &argv); + + cairo_tests_env = getenv("CAIRO_TESTS"); + append_argv (&argc, &argv, cairo_tests_env); + + if (runner.full_test & TEST_OFFSET) { + runner.num_device_offsets = 2; + } + if (runner.full_test & TEST_SCALE) { + runner.num_device_scales = 2; + } + + target_status = NULL; /* silence the compiler */ + if (! runner.list_only) { + _runner_init (&runner); + _runner_print_versions (&runner); + target_status = xmalloc (sizeof (cairo_test_status_t) * + runner.base.num_targets); + } + + for (test_list = tests; test_list != NULL; test_list = test_list->next) { + const cairo_test_t *test = test_list->test; + cairo_test_context_t ctx; + cairo_test_status_t status; + cairo_bool_t failed = FALSE, xfailed = FALSE, error = FALSE, crashed = FALSE, skipped = TRUE; + cairo_bool_t in_preamble = FALSE; + char *name = cairo_test_get_name (test); + int i; + + /* check for restricted runs */ + if (argc) { + cairo_bool_t found = FALSE; + const char *keywords = test->keywords; + + for (i = 0; i < argc; i++) { + const char *match = argv[i]; + cairo_bool_t invert = match[0] == '!'; + if (invert) + match++; + + if (runner.keyword_match) { + if (keywords != NULL && strstr (keywords, match) != NULL) { + found = ! invert; + break; + } else if (invert) { + found = TRUE; + } + } else { + /* exact match on test name */ + if (strcmp (name, match) == 0) { + found = ! invert; + break; + } else if (invert) { + found = TRUE; + } + } + } + + if (! found) { + free (name); + continue; + } + } + + /* check to see if external requirements match */ + if (test->requirements != NULL) { + const char *requirements = test->requirements; + const char *str; + + str = strstr (requirements, "slow"); + if (str != NULL && ! runner.slow) { + if (runner.list_only) + goto TEST_NEXT; + else + goto TEST_SKIPPED; + } + + str = strstr (requirements, "cairo"); + if (str != NULL && ! _has_required_cairo_version (str)) { + if (runner.list_only) + goto TEST_NEXT; + else + goto TEST_SKIPPED; + } + } + + if (runner.list_only) { + printf ("%s ", name); + goto TEST_NEXT; + } + + _cairo_test_context_init_for_test (&ctx, &runner.base, test); + memset (target_status, 0, + sizeof (cairo_test_status_t) * ctx.num_targets); + + if (ctx.test->preamble != NULL) { + status = _cairo_test_runner_preamble (&runner, &ctx); + if (getenv ("CAIRO_TEST_UGLY_HACK_TO_IGNORE_PS_FAILURES")) { + if (strcmp (ctx.test_name, "ps-eps") == 0) { + if (status == CAIRO_TEST_FAILURE) { + cairo_test_log (&ctx, "Turning FAIL into XFAIL due to env\n"); + fprintf (stderr, "Turning FAIL into XFAIL due to env\n"); + runner.num_ignored_via_env++; + status = CAIRO_TEST_XFAILURE; + } else { + fprintf (stderr, "Test was expected to fail due to an environment variable, but did not!\n"); + fprintf (stderr, "Please update the corresponding CAIRO_TEST_IGNORE_* variable.\n"); + status = CAIRO_TEST_ERROR; + } + } + } + switch (status) { + case CAIRO_TEST_SUCCESS: + in_preamble = TRUE; + skipped = FALSE; + break; + + case CAIRO_TEST_XFAILURE: + in_preamble = TRUE; + xfailed = TRUE; + goto TEST_DONE; + + case CAIRO_TEST_NEW: + case CAIRO_TEST_FAILURE: + runner.fails_preamble = _list_prepend (runner.fails_preamble, + test); + in_preamble = TRUE; + failed = TRUE; + goto TEST_DONE; + + case CAIRO_TEST_ERROR: + runner.errors_preamble = _list_prepend (runner.errors_preamble, + test); + in_preamble = TRUE; + failed = TRUE; + goto TEST_DONE; + + case CAIRO_TEST_NO_MEMORY: + case CAIRO_TEST_CRASHED: + runner.crashes_preamble = _list_prepend (runner.crashes_preamble, + test); + in_preamble = TRUE; + failed = TRUE; + goto TEST_DONE; + + case CAIRO_TEST_UNTESTED: + goto TEST_DONE; + } + } + + if (ctx.test->draw == NULL) + goto TEST_DONE; + + for (n = 0; n < ctx.num_targets; n++) { + const cairo_boilerplate_target_t *target; + cairo_bool_t target_failed = FALSE, + target_xfailed = FALSE, + target_error = FALSE, + target_crashed = FALSE, + target_skipped = TRUE; + cairo_test_similar_t has_similar; + + target = ctx.targets_to_test[n]; + + has_similar = runner.full_test & TEST_SIMILAR ? + cairo_test_target_has_similar (&ctx, target) : + DIRECT; + for (m = 0; m < runner.num_device_offsets; m++) { + for (k = 0; k < runner.num_device_scales; k++) { + int dev_offset = m * 25; + int dev_scale = k + 1; + cairo_test_similar_t similar; + + for (similar = DIRECT; similar <= has_similar; similar++) { + status = _cairo_test_runner_draw (&runner, &ctx, target, + similar, dev_offset, dev_scale); + + if (expect_fail_due_to_env_var (&ctx, target)) { + if (status == CAIRO_TEST_FAILURE) { + cairo_test_log (&ctx, "Turning FAIL into XFAIL due to env\n"); + fprintf (stderr, "Turning FAIL into XFAIL due to env\n"); + runner.num_ignored_via_env++; + status = CAIRO_TEST_XFAILURE; + } else { + fprintf (stderr, "Test was expected to fail due to an environment variable, but did not!\n"); + fprintf (stderr, "Please update the corresponding CAIRO_TEST_IGNORE_* variable.\n"); + status = CAIRO_TEST_ERROR; + } + } + if (getenv ("CAIRO_TEST_UGLY_HACK_TO_SOMETIMES_IGNORE_SCRIPT_XCB_HUGE_IMAGE_SHM")) { + if (strcmp (target->name, "script") == 0 && strcmp (ctx.test_name, "xcb-huge-image-shm") == 0) { + if (status == CAIRO_TEST_FAILURE) { + fprintf (stderr, "This time the xcb-huge-image-shm test on script surface failed.\n"); + cairo_test_log (&ctx, "Turning FAIL into XFAIL due to env\n"); + fprintf (stderr, "Turning FAIL into XFAIL due to env\n"); + runner.num_ignored_via_env++; + } else { + fprintf (stderr, "This time the xcb-huge-image-shm test on script surface did not fail.\n"); + cairo_test_log (&ctx, "Turning the status into XFAIL due to env\n"); + fprintf (stderr, "Turning the status into XFAIL due to env\n"); + } + status = CAIRO_TEST_XFAILURE; + fprintf (stderr, "If you are were getting one of the outcomes for some time, please update this code.\n"); + } + } + switch (status) { + case CAIRO_TEST_SUCCESS: + target_skipped = FALSE; + break; + case CAIRO_TEST_XFAILURE: + target_xfailed = TRUE; + break; + case CAIRO_TEST_NEW: + case CAIRO_TEST_FAILURE: + target_failed = TRUE; + break; + case CAIRO_TEST_ERROR: + target_error = TRUE; + break; + case CAIRO_TEST_NO_MEMORY: + case CAIRO_TEST_CRASHED: + target_crashed = TRUE; + break; + case CAIRO_TEST_UNTESTED: + break; + } + } + } + } + + if (target_crashed) { + target_status[n] = CAIRO_TEST_CRASHED; + runner.num_crashed_per_target[n]++; + runner.crashes_per_target[n] = _list_prepend (runner.crashes_per_target[n], + test); + crashed = TRUE; + } else if (target_error) { + target_status[n] = CAIRO_TEST_ERROR; + runner.num_error_per_target[n]++; + runner.errors_per_target[n] = _list_prepend (runner.errors_per_target[n], + test); + + error = TRUE; + } else if (target_failed) { + target_status[n] = CAIRO_TEST_FAILURE; + runner.num_failed_per_target[n]++; + runner.fails_per_target[n] = _list_prepend (runner.fails_per_target[n], + test); + + failed = TRUE; + } else if (target_xfailed) { + target_status[n] = CAIRO_TEST_XFAILURE; + xfailed = TRUE; + } else if (target_skipped) { + target_status[n] = CAIRO_TEST_UNTESTED; + } else { + target_status[n] = CAIRO_TEST_SUCCESS; + skipped = FALSE; + } + } + + TEST_DONE: + cairo_test_fini (&ctx); + TEST_SKIPPED: + targets[0] = '\0'; + if (crashed) { + if (! in_preamble) { + len = 0; + for (n = 0 ; n < runner.base.num_targets; n++) { + if (target_status[n] == CAIRO_TEST_CRASHED) { + if (strstr (targets, + runner.base.targets_to_test[n]->name) == NULL) + { + len += snprintf (targets + len, sizeof (targets) - len, + "%s, ", + runner.base.targets_to_test[n]->name); + } + } + } + targets[len-2] = '\0'; + _log (&runner.base, "\n%s: CRASH! (%s)\n", name, targets); + } else { + _log (&runner.base, "\n%s: CRASH!\n", name); + } + runner.num_crashed++; + runner.passed = FALSE; + } else if (error) { + if (! in_preamble) { + len = 0; + for (n = 0 ; n < runner.base.num_targets; n++) { + if (target_status[n] == CAIRO_TEST_ERROR) { + if (strstr (targets, + runner.base.targets_to_test[n]->name) == NULL) + { + len += snprintf (targets + len, + sizeof (targets) - len, + "%s, ", + runner.base.targets_to_test[n]->name); + } + } + } + targets[len-2] = '\0'; + _log (&runner.base, "%s: ERROR (%s)\n", name, targets); + } else { + _log (&runner.base, "%s: ERROR\n", name); + } + runner.num_error++; + runner.passed = FALSE; + } else if (failed) { + if (! in_preamble) { + len = 0; + for (n = 0 ; n < runner.base.num_targets; n++) { + if (target_status[n] == CAIRO_TEST_FAILURE) { + if (strstr (targets, + runner.base.targets_to_test[n]->name) == NULL) + { + len += snprintf (targets + len, + sizeof (targets) - len, + "%s, ", + runner.base.targets_to_test[n]->name); + } + } + } + targets[len-2] = '\0'; + _log (&runner.base, "%s: FAIL (%s)\n", name, targets); + } else { + _log (&runner.base, "%s: FAIL\n", name); + } + runner.num_failed++; + runner.passed = FALSE; + } else if (xfailed) { + _log (&runner.base, "%s: XFAIL\n", name); + runner.num_xfailed++; + } else if (skipped) { + _log (&runner.base, "%s: UNTESTED\n", name); + runner.num_skipped++; + } else { + _log (&runner.base, "%s: PASS\n", name); + runner.num_passed++; + } + fflush (runner.base.log_file); + + TEST_NEXT: + free (name); + if (runner.exit_on_failure && ! runner.passed) + break; + + } + + if (cairo_tests_env) + free(argv); + + if (runner.list_only) { + printf ("\n"); + return CAIRO_TEST_SUCCESS; + } + + for (n = 0 ; n < runner.base.num_targets; n++) { + runner.crashes_per_target[n] = _list_reverse (runner.crashes_per_target[n]); + runner.errors_per_target[n] = _list_reverse (runner.errors_per_target[n]); + runner.fails_per_target[n] = _list_reverse (runner.fails_per_target[n]); + } + + _runner_print_results (&runner); + + _list_free (tests); + free (target_status); + return _runner_fini (&runner); +} + +void +cairo_test_register (cairo_test_t *test) +{ + tests = _list_prepend (tests, test); +} diff --git a/local/recipes/libs/cairo/source/test/cairo-test-trace.c b/local/recipes/libs/cairo/source/test/cairo-test-trace.c new file mode 100644 index 0000000000..32987a7ad6 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/cairo-test-trace.c @@ -0,0 +1,1795 @@ +/* + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the authors not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The authors make no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Chris Wilson + */ + +/* + * The basic idea is that we feed the trace to multiple backends in parallel + * and compare the output at the end of each context (based on the premise + * that contexts demarcate expose events, or their logical equivalents) with + * that of the image[1] backend. Each backend is executed in a separate + * process, for robustness and to isolate the global cairo state, with the + * image data residing in shared memory and synchronising over a socket. + * + * [1] Should be reference implementation, currently the image backend is + * considered to be the reference for all other backends. + */ + +/* XXX Can't directly compare fills using spans versus trapezoidation, + * i.e. xlib vs image. Gah, kinda renders this whole scheme moot. + * How about reference platforms? + * E.g. accelerated xlib driver vs Xvfb? + * + * boilerplate->create_reference_surface()? + * boilerplate->reference->create_surface()? + * So for each backend spawn two processes, a reference and xlib + * (obviously minimising the number of reference processes when possible) + */ + +/* + * XXX Handle show-page as well as cairo_destroy()? Though arguably that is + * only relevant for paginated backends which is currently outside the + * scope of this test. + */ + +#include "cairo-test.h" +#include "buffer-diff.h" + +#include "cairo-boilerplate-getopt.h" +#include +#include "cairo-missing.h" + +#if CAIRO_HAS_SCRIPT_SURFACE +#include +#endif + +/* For basename */ +#ifdef HAVE_LIBGEN_H +#include +#endif +#include /* isspace() */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#if CAIRO_HAS_REAL_PTHREAD +#include +#endif + +#if defined(HAVE_POLL_H) +#include +#elif defined(HAVE_SYS_POLL_H) +#include +#else +#error No poll.h equivalent found +#endif + +#if HAVE_FCFINI +#include +#endif + +#ifndef MAP_NORESERVE +#define MAP_NORESERVE 0 +#endif + +#define DEBUG 0 + +#define ignore_image_differences 0 /* XXX make me a cmdline option! */ +#define write_results 1 +#define write_traces 1 + +#define DATA_SIZE (256 << 20) +#define SHM_PATH_XXX "/.shmem-cairo-trace" + +typedef struct _test_trace { + /* Options from command-line */ + cairo_bool_t list_only; + char **names; + unsigned int num_names; + char **exclude_names; + unsigned int num_exclude_names; + + /* Stuff used internally */ + const cairo_boilerplate_target_t **targets; + int num_targets; +} test_trace_t; + +typedef struct _test_runner { + const char *name; + cairo_surface_t *surface; + void *closure; + uint8_t *base; + const char *trace; + pid_t pid; + int sk; + cairo_bool_t is_recording; + + cairo_script_interpreter_t *csi; + struct context_closure { + struct context_closure *next; + unsigned long id; + unsigned long start_line; + unsigned long end_line; + cairo_t *context; + cairo_surface_t *surface; + } *contexts; + + unsigned long context_id; +} test_runner_t; + +struct slave { + pid_t pid; + int fd; + unsigned long image_serial; + unsigned long image_ready; + unsigned long start_line; + unsigned long end_line; + cairo_surface_t *image; + long width, height; + cairo_surface_t *difference; + buffer_diff_result_t result; + const cairo_boilerplate_target_t *target; + const struct slave *reference; + cairo_bool_t is_recording; +}; + +struct request_image { + unsigned long id; + unsigned long start_line; + unsigned long end_line; + cairo_format_t format; + long width; + long height; + long stride; +}; + +struct surface_tag { + long width, height; +}; +static const cairo_user_data_key_t surface_tag; + +#define TARGET_NAME(T) ((T) ? (T)->name : "recording") + +#if CAIRO_HAS_REAL_PTHREAD +#define tr_die(t) t->is_recording ? pthread_exit(NULL) : exit(1) +#else +#define tr_die(t) exit(1) +#endif + +static cairo_bool_t +writen (int fd, const void *ptr, int len) +{ +#if 0 + const uint8_t *data = ptr; + while (len) { + int ret = write (fd, data, len); + if (ret < 0) { + switch (errno) { + case EAGAIN: + case EINTR: + continue; + default: + return FALSE; + } + } else if (ret == 0) { + return FALSE; + } else { + data += ret; + len -= ret; + } + } + return TRUE; +#else + int ret = send (fd, ptr, len, 0); + return ret == len; +#endif +} + +static cairo_bool_t +readn (int fd, void *ptr, int len) +{ +#if 0 + uint8_t *data = ptr; + while (len) { + int ret = read (fd, data, len); + if (ret < 0) { + switch (errno) { + case EAGAIN: + case EINTR: + continue; + default: + return FALSE; + } + } else if (ret == 0) { + return FALSE; + } else { + data += ret; + len -= ret; + } + } + return TRUE; +#else + int ret = recv (fd, ptr, len, MSG_WAITALL); + return ret == len; +#endif +} + +static cairo_format_t +format_for_content (cairo_content_t content) +{ + switch (content) { + case CAIRO_CONTENT_ALPHA: + return CAIRO_FORMAT_A8; + case CAIRO_CONTENT_COLOR: + return CAIRO_FORMAT_RGB24; + default: + case CAIRO_CONTENT_COLOR_ALPHA: + return CAIRO_FORMAT_ARGB32; + } +} + +static void +send_recording_surface (test_runner_t *tr, + int width, int height, + struct context_closure *closure) +{ +#if CAIRO_HAS_REAL_PTHREAD + const struct request_image rq = { + closure->id, + closure->start_line, + closure->end_line, + -1, + width, height, + (long) closure->surface, + }; + unsigned long offset; + unsigned long serial; + + if (DEBUG > 1) { + printf ("send-recording-surface: %lu [%lu, %lu]\n", + closure->id, + closure->start_line, + closure->end_line); + } + writen (tr->sk, &rq, sizeof (rq)); + readn (tr->sk, &offset, sizeof (offset)); + + /* signal completion */ + writen (tr->sk, &closure->id, sizeof (closure->id)); + + /* wait for image check */ + serial = 0; + readn (tr->sk, &serial, sizeof (serial)); + if (DEBUG > 1) { + printf ("send-recording-surface: serial: %lu\n", serial); + } + if (serial != closure->id) + pthread_exit (NULL); +#else + exit (1); +#endif +} + +static void * +request_image (test_runner_t *tr, + struct context_closure *closure, + cairo_format_t format, + int width, int height, int stride) +{ + const struct request_image rq = { + closure->id, + closure->start_line, + closure->end_line, + format, width, height, stride + }; + unsigned long offset = -1; + + assert (format != (cairo_format_t) -1); + + writen (tr->sk, &rq, sizeof (rq)); + readn (tr->sk, &offset, sizeof (offset)); + if (offset == (unsigned long) -1) + return NULL; + + return tr->base + offset; +} + +static void +send_surface (test_runner_t *tr, + struct context_closure *closure) +{ + cairo_surface_t *source = closure->surface; + cairo_surface_t *image; + cairo_format_t format = (cairo_format_t) -1; + cairo_t *cr; + int width, height, stride; + void *data; + unsigned long serial; + + if (DEBUG > 1) { + printf ("send-surface: '%s', is-recording? %d\n", + tr->name, tr->is_recording); + } + + if (cairo_surface_get_type (source) == CAIRO_SURFACE_TYPE_IMAGE) { + width = cairo_image_surface_get_width (source); + height = cairo_image_surface_get_height (source); + format = cairo_image_surface_get_format (source); + } else { + struct surface_tag *tag; + + tag = cairo_surface_get_user_data (source, &surface_tag); + if (tag != NULL) { + width = tag->width; + height = tag->height; + } else { + double x0, x1, y0, y1; + + /* presumably created using cairo_surface_create_similar() */ + cr = cairo_create (source); + cairo_clip_extents (cr, &x0, &y0, &x1, &y1); + cairo_destroy (cr); + + tag = xmalloc (sizeof (*tag)); + width = tag->width = x1 - x0; + height = tag->height = y1 - y0; + + if (cairo_surface_set_user_data (source, &surface_tag, tag, free)) + tr_die (tr); + } + } + + if (tr->is_recording) { + send_recording_surface (tr, width, height, closure); + return; + } + + if (format == (cairo_format_t) -1) + format = format_for_content (cairo_surface_get_content (source)); + + stride = cairo_format_stride_for_width (format, width); + + data = request_image (tr, closure, format, width, height, stride); + if (data == NULL) + tr_die (tr); + + image = cairo_image_surface_create_for_data (data, + format, + width, height, + stride); + cr = cairo_create (image); + cairo_surface_destroy (image); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_surface (cr, source, 0, 0); + cairo_paint (cr); + cairo_destroy (cr); + + /* signal completion */ + writen (tr->sk, &closure->id, sizeof (closure->id)); + + /* wait for image check */ + serial = 0; + readn (tr->sk, &serial, sizeof (serial)); + if (serial != closure->id) + tr_die (tr); +} + +static cairo_surface_t * +_surface_create (void *closure, + cairo_content_t content, + double width, double height, + long uid) +{ + test_runner_t *tr = closure; + cairo_surface_t *surface; + + surface = cairo_surface_create_similar (tr->surface, + content, width, height); + if (cairo_surface_get_type (surface) != CAIRO_SURFACE_TYPE_IMAGE) { + struct surface_tag *tag; + + tag = xmalloc (sizeof (*tag)); + tag->width = width; + tag->height = height; + if (cairo_surface_set_user_data (surface, &surface_tag, tag, free)) + tr_die (tr); + } + + return surface; +} + +static cairo_t * +_context_create (void *closure, cairo_surface_t *surface) +{ + test_runner_t *tr = closure; + struct context_closure *l; + + if (DEBUG) { + fprintf (stderr, "%s: starting context %lu on line %d\n", + tr->name ? tr->name : "recording" , + tr->context_id + 1, + cairo_script_interpreter_get_line_number (tr->csi)); + } + + l = xmalloc (sizeof (*l)); + l->next = tr->contexts; + l->start_line = cairo_script_interpreter_get_line_number (tr->csi); + l->end_line = l->start_line; + l->context = cairo_create (surface); + l->surface = cairo_surface_reference (surface); + l->id = ++tr->context_id; + if (l->id == 0) + l->id = ++tr->context_id; + tr->contexts = l; + + return l->context; +} + +static void +_context_destroy (void *closure, void *ptr) +{ + test_runner_t *tr = closure; + struct context_closure *l, **prev = &tr->contexts; + + while ((l = *prev) != NULL) { + if (l->context == ptr) { + if (DEBUG) { + fprintf (stderr, "%s: context %lu complete on line %d\n", + tr->name ? tr->name : "recording" , + tr->context_id, + cairo_script_interpreter_get_line_number (tr->csi)); + } + l->end_line = + cairo_script_interpreter_get_line_number (tr->csi); + if (cairo_surface_status (l->surface) == CAIRO_STATUS_SUCCESS) { + send_surface (tr, l); + } else { + fprintf (stderr, "%s: error during replay, line %lu: %s!\n", + tr->name, + l->end_line, + cairo_status_to_string (cairo_surface_status (l->surface))); + tr_die (tr); + } + + cairo_surface_destroy (l->surface); + *prev = l->next; + free (l); + return; + } + prev = &l->next; + } +} + +static void +execute (test_runner_t *tr) +{ + const cairo_script_interpreter_hooks_t hooks = { + .closure = tr, + .surface_create = _surface_create, + .context_create = _context_create, + .context_destroy = _context_destroy, + }; + pid_t ack; + + tr->csi = cairo_script_interpreter_create (); + cairo_script_interpreter_install_hooks (tr->csi, &hooks); + + ack = -1; + readn (tr->sk, &ack, sizeof (ack)); + if (ack != tr->pid) + tr_die (tr); + + cairo_script_interpreter_run (tr->csi, tr->trace); + + cairo_script_interpreter_finish (tr->csi); + if (cairo_script_interpreter_destroy (tr->csi)) + tr_die (tr); +} + +static int +spawn_socket (const char *socket_path, pid_t pid) +{ + struct sockaddr_un addr; + int sk; + + sk = socket (PF_UNIX, SOCK_STREAM, 0); + if (sk == -1) + return -1; + + memset (&addr, 0, sizeof (addr)); + addr.sun_family = AF_UNIX; + strcpy (addr.sun_path, socket_path); + + if (connect (sk, (struct sockaddr *) &addr, sizeof (addr)) == -1) + return -1; + + if (! writen (sk, &pid, sizeof (pid))) + return -1; + + return sk; +} + +static void * +spawn_shm (const char *shm_path) +{ + void *base; + int fd; + + fd = shm_open (shm_path, O_RDWR, 0); + if (fd == -1) + return MAP_FAILED; + + base = mmap (NULL, DATA_SIZE, + PROT_READ | PROT_WRITE, +#ifdef MAP_NORESERVE + MAP_SHARED | MAP_NORESERVE, +#else + MAP_SHARED, +#endif + fd, 0); + close (fd); + + return base; +} + +static int +spawn_target (const char *socket_path, + const char *shm_path, + const cairo_boilerplate_target_t *target, + const char *trace) +{ + test_runner_t tr; + pid_t pid; + + if (DEBUG) + printf ("Spawning slave '%s' for %s\n", target->name, trace); + + pid = fork (); + if (pid != 0) + return pid; + + tr.is_recording = FALSE; + tr.pid = getpid (); + + tr.sk = spawn_socket (socket_path, tr.pid); + if (tr.sk == -1) { + fprintf (stderr, "%s: Failed to open socket.\n", + target->name); + exit (-1); + } + + tr.base = spawn_shm (shm_path); + if (tr.base == MAP_FAILED) { + fprintf (stderr, "%s: Failed to map shared memory segment.\n", + target->name); + exit (-1); + } + + tr.name = target->name; + tr.contexts = NULL; + tr.context_id = 0; + tr.trace = trace; + + tr.surface = target->create_surface (NULL, + target->content, + 1, 1, + 1, 1, + CAIRO_BOILERPLATE_MODE_TEST, + &tr.closure); + if (tr.surface == NULL) { + fprintf (stderr, + "%s: Failed to create target surface.\n", + target->name); + exit (-1); + } + + execute (&tr); + + cairo_surface_destroy (tr.surface); + + if (target->cleanup) + target->cleanup (tr.closure); + + close (tr.sk); + munmap (tr.base, DATA_SIZE); + + exit (0); +} + +#if CAIRO_HAS_REAL_PTHREAD +static void +cleanup_recorder (void *arg) +{ + test_runner_t *tr = arg; + + cairo_surface_finish (tr->surface); + cairo_surface_destroy (tr->surface); + + close (tr->sk); + free (tr); +} + +static void * +record (void *arg) +{ + test_runner_t *tr = arg; + + pthread_cleanup_push (cleanup_recorder, tr); + execute (tr); + pthread_cleanup_pop (TRUE); + + return NULL; +} + +/* The recorder is special: + * 1. It doesn't generate an image, but keeps an in-memory trace to + * reconstruct any surface. + * 2. Runs in the same process, but separate thread. + */ +static pid_t +spawn_recorder (const char *socket_path, const char *trace, test_runner_t **out) +{ + test_runner_t *tr; + pthread_t id; + pthread_attr_t attr; + pid_t pid = getpid (); + + if (DEBUG) + printf ("Spawning recorder for %s\n", trace); + + tr = malloc (sizeof (*tr)); + if (tr == NULL) + return -1; + + tr->is_recording = TRUE; + tr->pid = pid; + tr->sk = spawn_socket (socket_path, tr->pid); + if (tr->sk == -1) { + free (tr); + return -1; + } + + tr->base = NULL; + tr->name = NULL; + tr->contexts = NULL; + tr->context_id = 0; + tr->trace = trace; + + tr->surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, + NULL); + if (tr->surface == NULL) { + cleanup_recorder (tr); + return -1; + } + + pthread_attr_init (&attr); + pthread_attr_setdetachstate (&attr, TRUE); + if (pthread_create (&id, &attr, record, tr) < 0) { + pthread_attr_destroy (&attr); + cleanup_recorder (tr); + return -1; + } + pthread_attr_destroy (&attr); + + + *out = tr; + return pid; +} +#endif + +/* XXX imagediff - is the extra expense worth it? */ +static cairo_bool_t +matches_reference (struct slave *slave) +{ + cairo_surface_t *a, *b; + + a = slave->image; + b = slave->reference->image; + + if (a == b) + return TRUE; + + if (a == NULL || b == NULL) + return FALSE; + + if (cairo_surface_status (a) || cairo_surface_status (b)) + return FALSE; + + if (cairo_surface_get_type (a) != cairo_surface_get_type (b)) + return FALSE; + + if (cairo_image_surface_get_format (a) != cairo_image_surface_get_format (b)) + return FALSE; + + if (cairo_image_surface_get_width (a) != cairo_image_surface_get_width (b)) + return FALSE; + + if (cairo_image_surface_get_height (a) != cairo_image_surface_get_height (b)) + return FALSE; + + if (cairo_image_surface_get_stride (a) != cairo_image_surface_get_stride (b)) + return FALSE; + + if (FALSE && cairo_surface_get_content (a) & CAIRO_CONTENT_COLOR) { + cairo_surface_t *diff; + int width, height, stride, size; + unsigned char *data; + cairo_status_t status; + + width = cairo_image_surface_get_width (a); + height = cairo_image_surface_get_height (a); + stride = cairo_image_surface_get_stride (a); + size = height * stride * 4; + data = malloc (size); + if (data == NULL) + return FALSE; + + diff = cairo_image_surface_create_for_data (data, + cairo_image_surface_get_format (a), + width, height, stride); + cairo_surface_set_user_data (diff, (cairo_user_data_key_t *) diff, + data, free); + + status = image_diff (NULL, a, b, diff, &slave->result); + if (status) { + cairo_surface_destroy (diff); + return FALSE; + } + + if (image_diff_is_failure (&slave->result, slave->target->error_tolerance)) { + slave->difference = diff; + return FALSE; + } else { + cairo_surface_destroy (diff); + return TRUE; + } + } else { + int width, height, stride; + const uint8_t *aa, *bb; + int x, y; + + width = cairo_image_surface_get_width (a); + height = cairo_image_surface_get_height (a); + stride = cairo_image_surface_get_stride (a); + + aa = cairo_image_surface_get_data (a); + bb = cairo_image_surface_get_data (b); + switch (cairo_image_surface_get_format (a)) { + case CAIRO_FORMAT_ARGB32: + for (y = 0; y < height; y++) { + const uint32_t *ua = (uint32_t *) aa; + const uint32_t *ub = (uint32_t *) bb; + for (x = 0; x < width; x++) { + if (ua[x] != ub[x]) { + int channel; + + for (channel = 0; channel < 4; channel++) { + int va, vb; + unsigned diff; + + va = (ua[x] >> (channel*8)) & 0xff; + vb = (ub[x] >> (channel*8)) & 0xff; + diff = abs (va - vb); + if (diff > slave->target->error_tolerance) + return FALSE; + } + } + } + aa += stride; + bb += stride; + } + break; + + case CAIRO_FORMAT_RGB24: + for (y = 0; y < height; y++) { + const uint32_t *ua = (uint32_t *) aa; + const uint32_t *ub = (uint32_t *) bb; + for (x = 0; x < width; x++) { + if ((ua[x] & 0x00ffffff) != (ub[x] & 0x00ffffff)) { + int channel; + + for (channel = 0; channel < 3; channel++) { + int va, vb; + unsigned diff; + + va = (ua[x] >> (channel*8)) & 0xff; + vb = (ub[x] >> (channel*8)) & 0xff; + diff = abs (va - vb); + if (diff > slave->target->error_tolerance) + return FALSE; + } + } + } + aa += stride; + bb += stride; + } + break; + + case CAIRO_FORMAT_A8: + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + if (aa[x] != bb[x]) { + unsigned diff = abs (aa[x] - bb[x]); + if (diff > slave->target->error_tolerance) + return FALSE; + } + } + aa += stride; + bb += stride; + } + break; + + case CAIRO_FORMAT_A1: + width /= 8; + for (y = 0; y < height; y++) { + if (memcmp (aa, bb, width)) + return FALSE; + aa += stride; + bb += stride; + } + break; + + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_RGB16_565: + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGBA128F: + case CAIRO_FORMAT_INVALID: + assert (0); + } + + return TRUE; + } +} + +static cairo_bool_t +check_images (struct slave *slaves, int num_slaves) +{ + int n; + + if (ignore_image_differences) + return TRUE; + + for (n = 0; n < num_slaves; n++) { + if (slaves[n].reference == NULL) + continue; + + if (! matches_reference (&slaves[n])) + return FALSE; + } + + return TRUE; +} + +static void +write_images (const char *trace, struct slave *slave, int num_slaves) +{ + while (num_slaves--) { + if (slave->image != NULL && ! slave->is_recording) { + char *filename; + + xasprintf (&filename, "%s-%s-fail.png", + trace, slave->target->name); + cairo_surface_write_to_png (slave->image, filename); + free (filename); + + if (slave->difference) { + xasprintf (&filename, "%s-%s-diff.png", + trace, slave->target->name); + cairo_surface_write_to_png (slave->difference, filename); + free (filename); + } + } + + slave++; + } +} + +static void +write_result (const char *trace, struct slave *slave) +{ + static int index; + char *filename; + + xasprintf (&filename, "%s-%s-pass-%d-%ld-%ld.png", + trace, slave->target->name, ++index, + slave->start_line, slave->end_line); + cairo_surface_write_to_png (slave->image, filename); + free (filename); +} + +static void +write_trace (const char *trace, const char *id, struct slave *slave) +{ +#if CAIRO_HAS_SCRIPT_SURFACE + cairo_device_t *script; + char *filename; + + assert (slave->is_recording); + + xasprintf (&filename, "%s-%s.trace", trace, id); + + script = cairo_script_create (filename); + cairo_script_from_recording_surface (script, slave->image); + cairo_device_destroy (script); + + free (filename); +#endif +} + +static void +dump_traces (test_runner_t *tr, + const char *trace, + const char *target, + const char *fail) +{ +#if CAIRO_HAS_SCRIPT_SURFACE + struct context_closure *c; + + for (c = tr->contexts; c; c = c->next) { + cairo_device_t *script; + char *filename; + + xasprintf (&filename, "%s-%s-%s.%lu.trace", + trace, target, fail, c->start_line); + + script = cairo_script_create (filename); + cairo_script_from_recording_surface (script, c->surface); + cairo_device_destroy (script); + + free (filename); + } +#endif +} + +static unsigned long +allocate_image_for_slave (uint8_t *base, + unsigned long offset, + struct slave *slave) +{ + struct request_image rq; + int size; + uint8_t *data; + + assert (slave->image == NULL); + + readn (slave->fd, &rq, sizeof (rq)); + slave->image_serial = rq.id; + slave->start_line = rq.start_line; + slave->end_line = rq.end_line; + + slave->width = rq.width; + slave->height = rq.height; + + if (DEBUG > 1) { + printf ("allocate-image-for-slave: %s %lu [%lu, %lu] %ldx%ld stride=%lu => %lu, is-recording? %d\n", + TARGET_NAME (slave->target), + slave->image_serial, + slave->start_line, + slave->end_line, + slave->width, + slave->height, + rq.stride, + offset, + slave->is_recording); + } + + if (slave->is_recording) { + /* special communication with recording-surface thread */ + slave->image = cairo_surface_reference ((cairo_surface_t *) rq.stride); + } else { + size = rq.height * rq.stride; + size = (size + 4095) & -4096; + data = base + offset; + offset += size; + assert (offset <= DATA_SIZE); + + slave->image = cairo_image_surface_create_for_data (data, rq.format, + rq.width, rq.height, + rq.stride); + } + + return offset; +} + +struct error_info { + unsigned long context_id; + unsigned long start_line; + unsigned long end_line; +}; + +static cairo_bool_t +test_run (void *base, + int sk, + const char *trace, + struct slave *slaves, + int num_slaves, + struct error_info *error) +{ + struct pollfd *pfd; + int npfd, cnt, n, i; + int completion, err = 0; + cairo_bool_t ret = FALSE; + unsigned long image; + + if (DEBUG) { + printf ("Running trace '%s' over %d slaves\n", + trace, num_slaves); + } + + pfd = xcalloc (num_slaves+1, sizeof (*pfd)); + + pfd[0].fd = sk; + pfd[0].events = POLLIN; + npfd = 1; + + completion = 0; + image = 0; + while ((cnt = poll (pfd, npfd, -1)) > 0) { + if (pfd[0].revents) { + int fd; + + while ((fd = accept (sk, NULL, NULL)) != -1) { + pid_t pid; + + readn (fd, &pid, sizeof (pid)); + for (n = 0; n < num_slaves; n++) { + if (slaves[n].pid == pid) { + slaves[n].fd = fd; + break; + } + } + if (n == num_slaves) { + if (DEBUG) + printf ("unknown slave pid\n"); + goto out; + } + + pfd[npfd].fd = fd; + pfd[npfd].events = POLLIN; + npfd++; + + if (! writen (fd, &pid, sizeof (pid))) + goto out; + } + cnt--; + } + + for (n = 1; n < npfd && cnt; n++) { + if (! pfd[n].revents) + continue; + + if (pfd[n].revents & POLLHUP) { + pfd[n].events = pfd[n].revents = 0; + completion++; + continue; + } + + for (i = 0; i < num_slaves; i++) { + if (slaves[i].fd == pfd[n].fd) { + /* Communication with the slave is done in three phases, + * and we do each pass synchronously. + * + * 1. The slave requests an image buffer, which we + * allocate and then return to the slave the offset into + * the shared memory segment. + * + * 2. The slave indicates that it has finished writing + * into the shared image buffer. The slave now waits + * for the server to collate all the image data - thereby + * throttling the slaves. + * + * 3. After all slaves have finished writing their images, + * we compare them all against the reference image and, + * if satisfied, send an acknowledgement to all slaves. + */ + if (slaves[i].image_serial == 0) { + unsigned long offset; + + image = + allocate_image_for_slave (base, + offset = image, + &slaves[i]); + if (! writen (pfd[n].fd, &offset, sizeof (offset))) { + pfd[n].events = pfd[n].revents = 0; + err = 1; + completion++; + continue; + } + } else { + readn (pfd[n].fd, + &slaves[i].image_ready, + sizeof (slaves[i].image_ready)); + if (DEBUG) { + printf ("slave '%s' reports completion on %lu (expecting %lu)\n", + TARGET_NAME (slaves[i].target), + slaves[i].image_ready, + slaves[i].image_serial); + } + if (slaves[i].image_ready != slaves[i].image_serial) { + pfd[n].events = pfd[n].revents = 0; + err = 1; + completion++; + continue; + } + + /* Can anyone spell 'P·E·D·A·N·T'? */ + if (! slaves[i].is_recording) + cairo_surface_mark_dirty (slaves[i].image); + completion++; + } + + break; + } + } + + cnt--; + } + + if (completion >= num_slaves) { + if (err) { + if (DEBUG > 1) + printf ("error detected\n"); + goto out; + } + + if (DEBUG > 1) { + printf ("all saves report completion\n"); + } + if (slaves[0].end_line >= slaves[0].start_line && + ! check_images (slaves, num_slaves)) { + error->context_id = slaves[0].image_serial; + error->start_line = slaves[0].start_line; + error->end_line = slaves[0].end_line; + + if (DEBUG) { + printf ("check_images failed: %lu, [%lu, %lu]\n", + slaves[0].image_serial, + slaves[0].start_line, + slaves[0].end_line); + } + + write_images (trace, slaves, num_slaves); + + if (slaves[0].is_recording) + write_trace (trace, "fail", &slaves[0]); + + goto out; + } + + if (write_results) write_result (trace, &slaves[1]); + if (write_traces && slaves[0].is_recording) { + char buf[80]; + snprintf (buf, sizeof (buf), "%ld", slaves[0].image_serial); + write_trace (trace, buf, &slaves[0]); + } + + /* ack */ + for (i = 0; i < num_slaves; i++) { + cairo_surface_destroy (slaves[i].image); + slaves[i].image = NULL; + + if (DEBUG > 1) { + printf ("sending continuation to '%s'\n", + TARGET_NAME (slaves[i].target)); + } + if (! writen (slaves[i].fd, + &slaves[i].image_serial, + sizeof (slaves[i].image_serial))) + { + goto out; + } + + slaves[i].image_serial = 0; + slaves[i].image_ready = 0; + } + + completion = 0; + image = 0; + } + } + + ret = TRUE; + +out: + if (DEBUG) { + printf ("run complete: %d\n", ret); + } + + for (n = 0; n < num_slaves; n++) { + if (slaves[n].fd != -1) + close (slaves[n].fd); + + if (slaves[n].image == NULL) + continue; + + cairo_surface_destroy (slaves[n].image); + slaves[n].image = NULL; + + cairo_surface_destroy (slaves[n].difference); + slaves[n].difference = NULL; + + slaves[n].image_serial = 0; + slaves[n].image_ready = 0; + } + + free (pfd); + + return ret; +} + +static int +server_socket (const char *socket_path) +{ + long flags; + struct sockaddr_un addr; + int sk; + + sk = socket (PF_UNIX, SOCK_STREAM, 0); + if (sk == -1) + return -1; + + memset (&addr, 0, sizeof (addr)); + addr.sun_family = AF_UNIX; + strcpy (addr.sun_path, socket_path); + if (bind (sk, (struct sockaddr *) &addr, sizeof (addr)) == -1) { + close (sk); + return -1; + } + + flags = fcntl (sk, F_GETFL); + if (flags == -1 || fcntl (sk, F_SETFL, flags | O_NONBLOCK) == -1) { + close (sk); + return -1; + } + + if (listen (sk, 5) == -1) { + close (sk); + return -1; + } + + return sk; +} + +static int +server_shm (const char *shm_path) +{ + int fd; + + fd = shm_open (shm_path, O_RDWR | O_EXCL | O_CREAT, 0777); + if (fd == -1) + return -1; + + if (ftruncate (fd, DATA_SIZE) == -1) { + close (fd); + return -1; + } + + return fd; +} + +static cairo_bool_t +_test_trace (test_trace_t *test, + const char *trace, + const char *name, + struct error_info *error) +{ + const char *shm_path = SHM_PATH_XXX; + const cairo_boilerplate_target_t *target, *image; + struct slave *slaves, *s; + test_runner_t *recorder = NULL; + pid_t slave; + char socket_dir[] = "/tmp/cairo-test-trace.XXXXXX"; + char *socket_path; + int sk, fd; + int i, num_slaves; + void *base; + cairo_bool_t ret = FALSE; + + if (DEBUG) + printf ("setting up trace '%s'\n", trace); + + /* create a socket to control the test runners */ + if (mkdtemp (socket_dir) == NULL) { + fprintf (stderr, "Unable to create temporary name for socket\n"); + return FALSE; + } + + xasprintf (&socket_path, "%s/socket", socket_dir); + sk = server_socket (socket_path); + if (sk == -1) { + fprintf (stderr, "Unable to create socket for server\n"); + goto cleanup_paths; + } + + /* allocate some shared memory */ + fd = server_shm (shm_path); + if (fd == -1) { + fprintf (stderr, "Unable to create shared memory '%s': %s\n", + shm_path, strerror (errno)); + goto cleanup_sk; + } + + image = cairo_boilerplate_get_image_target (CAIRO_CONTENT_COLOR_ALPHA); + assert (image != NULL); + + s = slaves = xcalloc (2*test->num_targets + 1, sizeof (struct slave)); + +#if CAIRO_HAS_REAL_PTHREAD + /* set-up a recording-surface to reconstruct errors */ + slave = spawn_recorder (socket_path, trace, &recorder); + if (slave < 0) { + fprintf (stderr, "Unable to create recording surface\n"); + goto cleanup_sk; + } + + s->pid = slave; + s->is_recording = TRUE; + s->target = NULL; + s->fd = -1; + s->reference = NULL; + s++; +#endif + + /* spawn slave processes to run the trace */ + for (i = 0; i < test->num_targets; i++) { + const cairo_boilerplate_target_t *reference; + struct slave *master; + + target = test->targets[i]; + + if (DEBUG) + printf ("setting up target[%d]? '%s' (image? %d, measurable? %d)\n", + i, target->name, target == image, target->is_measurable); + + if (target == image || ! target->is_measurable) + continue; + + /* find a matching slave to use as a reference for this target */ + if (target->reference_target != NULL) { + reference = + cairo_boilerplate_get_target_by_name (target->reference_target, + target->content); + assert (reference != NULL); + } else { + reference = image; + } + for (master = slaves; master < s; master++) { + if (master->target == reference) + break; + } + + if (master == s) { + /* no match found, spawn a slave to render the reference image */ + slave = spawn_target (socket_path, shm_path, reference, trace); + if (slave < 0) + continue; + + s->pid = slave; + s->target = reference; + s->fd = -1; + s->reference = NULL; + s++; + } + + slave = spawn_target (socket_path, shm_path, target, trace); + if (slave < 0) + continue; + + s->pid = slave; + s->target = target; + s->fd = -1; + s->reference = master; + s++; + } + num_slaves = s - slaves; + if (num_slaves == 1) { + fprintf (stderr, "No targets to test\n"); + goto cleanup; + } + + base = mmap (NULL, DATA_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); + if (base == MAP_FAILED) { + fprintf (stderr, "Unable to mmap shared memory\n"); + goto cleanup; + } + ret = test_run (base, sk, name, slaves, num_slaves, error); + munmap (base, DATA_SIZE); + +cleanup: + close (fd); + while (s-- > slaves) { + int status; + + if (s->fd != -1) + close (s->fd); + + cairo_surface_destroy (s->image); + cairo_surface_destroy (s->difference); + + if (s->is_recording) /* in-process */ + continue; + + kill (s->pid, SIGKILL); + waitpid (s->pid, &status, 0); + if (WIFSIGNALED (status) && WTERMSIG(status) != SIGKILL) { + fprintf (stderr, "%s crashed\n", s->target->name); + if (recorder) + dump_traces (recorder, trace, s->target->name, "crash"); + } + } + free (slaves); + shm_unlink (shm_path); +cleanup_sk: + close (sk); + +cleanup_paths: + remove (socket_path); + remove (socket_dir); + + free (socket_path); + return ret; +} + +static void +test_trace (test_trace_t *test, const char *trace) +{ + char *trace_cpy, *name, *dot; + + trace_cpy = xstrdup (trace); + name = basename (trace_cpy); + dot = strchr (name, '.'); + if (dot) + *dot = '\0'; + + if (test->list_only) { + printf ("%s\n", name); + } else { + struct error_info error = {0}; + cairo_bool_t ret; + + printf ("%s: ", name); + fflush (stdout); + + ret = _test_trace (test, trace, name, &error); + if (ret) { + printf ("PASS\n"); + } else { + if (error.context_id) { + printf ("FAIL (context %lu, lines [%lu, %lu])\n", + error.context_id, + error.start_line, + error.end_line); + } else { + printf ("FAIL\n"); + } + } + } + + free (trace_cpy); +} + +static cairo_bool_t +read_excludes (test_trace_t *test, const char *filename) +{ + FILE *file; + char *line = NULL; + size_t line_size = 0; + char *s, *t; + + file = fopen (filename, "r"); + if (file == NULL) + return FALSE; + + while (getline (&line, &line_size, file) != -1) { + /* terminate the line at a comment marker '#' */ + s = strchr (line, '#'); + if (s) + *s = '\0'; + + /* whitespace delimits */ + s = line; + while (*s != '\0' && isspace ((unsigned char)*s)) + s++; + + t = s; + while (*t != '\0' && ! isspace ((unsigned char)*t)) + t++; + + if (s != t) { + int i = test->num_exclude_names; + test->exclude_names = xrealloc (test->exclude_names, + sizeof (char *) * (i+1)); + test->exclude_names[i] = strndup (s, t-s); + test->num_exclude_names++; + } + } + free (line); + + fclose (file); + + return TRUE; +} + +static void +usage (const char *argv0) +{ + fprintf (stderr, +"Usage: %s [-l] [-x exclude-file] [test-names ... | traces ...]\n" +"\n" +"Run the cairo test suite over the given traces (all by default).\n" +"The command-line arguments are interpreted as follows:\n" +"\n" +" -l list only; just list selected test case names without executing\n" +" -x exclude; specify a file to read a list of traces to exclude\n" +"\n" +"If test names are given they are used as sub-string matches so a command\n" +"such as \"%s firefox\" can be used to run all firefox traces.\n" +"Alternatively, you can specify a list of filenames to execute.\n", + argv0, argv0); +} + +static void +parse_options (test_trace_t *test, int argc, char *argv[]) +{ + int c; + + test->list_only = FALSE; + test->names = NULL; + test->num_names = 0; + test->exclude_names = NULL; + test->num_exclude_names = 0; + + while (1) { + c = _cairo_getopt (argc, argv, "lx:"); + if (c == -1) + break; + + switch (c) { + case 'l': + test->list_only = TRUE; + break; + case 'x': + if (! read_excludes (test, optarg)) { + fprintf (stderr, "Invalid argument for -x (not readable file): %s\n", + optarg); + exit (1); + } + break; + default: + fprintf (stderr, "Internal error: unhandled option: %c\n", c); + /* fall-through */ + case '?': + usage (argv[0]); + exit (1); + } + } + + if (optind < argc) { + test->names = &argv[optind]; + test->num_names = argc - optind; + } +} + +static void +test_reset (test_trace_t *test) +{ + /* XXX leaking fonts again via recording-surface? */ +#if 0 + cairo_debug_reset_static_data (); +#if HAVE_FCFINI + FcFini (); +#endif +#endif +} + +static void +test_fini (test_trace_t *test) +{ + test_reset (test); + + cairo_boilerplate_free_targets (test->targets); + free (test->exclude_names); +} + +static cairo_bool_t +test_has_filenames (test_trace_t *test) +{ + unsigned int i; + + if (test->num_names == 0) + return FALSE; + + for (i = 0; i < test->num_names; i++) + if (access (test->names[i], R_OK) == 0) + return TRUE; + + return FALSE; +} + +static cairo_bool_t +test_can_run (test_trace_t *test, const char *name) +{ + unsigned int i; + char *copy, *dot; + cairo_bool_t ret; + + if (test->num_names == 0 && test->num_exclude_names == 0) + return TRUE; + + copy = xstrdup (name); + dot = strrchr (copy, '.'); + if (dot != NULL) + *dot = '\0'; + + if (test->num_names) { + ret = TRUE; + for (i = 0; i < test->num_names; i++) + if (strstr (copy, test->names[i])) + goto check_exclude; + + ret = FALSE; + goto done; + } + +check_exclude: + if (test->num_exclude_names) { + ret = FALSE; + for (i = 0; i < test->num_exclude_names; i++) + if (strstr (copy, test->exclude_names[i])) + goto done; + + ret = TRUE; + goto done; + } + +done: + free (copy); + + return ret; +} + +static void +warn_no_traces (const char *message, const char *trace_dir) +{ + fprintf (stderr, +"Error: %s '%s'.\n" +"Have you cloned the cairo-traces repository and uncompressed the traces?\n" +" git clone git://anongit.freedesktop.org/cairo-traces\n" +" cd cairo-traces && make\n" +"Or set the env.var CAIRO_TRACE_DIR to point to your traces?\n", + message, trace_dir); +} + +static void +interrupt (int sig) +{ + shm_unlink (SHM_PATH_XXX); + + signal (sig, SIG_DFL); + raise (sig); +} + +int +main (int argc, char *argv[]) +{ + test_trace_t test; + const char *trace_dir = "cairo-traces"; + unsigned int n; + + signal (SIGPIPE, SIG_IGN); + signal (SIGINT, interrupt); + + parse_options (&test, argc, argv); + + shm_unlink (SHM_PATH_XXX); + + if (getenv ("CAIRO_TRACE_DIR") != NULL) + trace_dir = getenv ("CAIRO_TRACE_DIR"); + + test.targets = cairo_boilerplate_get_targets (&test.num_targets, NULL); + + if (test_has_filenames (&test)) { + for (n = 0; n < test.num_names; n++) { + if (access (test.names[n], R_OK) == 0) { + test_trace (&test, test.names[n]); + test_reset (&test); + } + } + } else { + DIR *dir; + struct dirent *de; + int num_traces = 0; + + dir = opendir (trace_dir); + if (dir == NULL) { + warn_no_traces ("Failed to open directory", trace_dir); + test_fini (&test); + return 1; + } + + while ((de = readdir (dir)) != NULL) { + char *trace; + const char *dot; + + dot = strrchr (de->d_name, '.'); + if (dot == NULL) + continue; + if (strcmp (dot, ".trace")) + continue; + + num_traces++; + if (! test_can_run (&test, de->d_name)) + continue; + + xasprintf (&trace, "%s/%s", trace_dir, de->d_name); + test_trace (&test, trace); + test_reset (&test); + + free (trace); + + } + closedir (dir); + + if (num_traces == 0) { + warn_no_traces ("Found no traces in", trace_dir); + test_fini (&test); + return 1; + } + } + + test_fini (&test); + + return 0; +} + +void +cairo_test_logv (const cairo_test_context_t *ctx, + const char *fmt, va_list va) +{ +#if 0 + vfprintf (stderr, fmt, va); +#endif +} + +void +cairo_test_log (const cairo_test_context_t *ctx, const char *fmt, ...) +{ +#if 0 + va_list va; + + va_start (va, fmt); + vfprintf (stderr, fmt, va); + va_end (va); +#endif +} diff --git a/local/recipes/libs/cairo/source/test/cairo-test.c b/local/recipes/libs/cairo/source/test/cairo-test.c new file mode 100644 index 0000000000..49dfadb15c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/cairo-test.c @@ -0,0 +1,1898 @@ +/* + * Copyright © 2004 Red Hat, Inc. + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + * Chris Wilson + */ + +#include "config.h" + +#include +#include +#include +#include +#include +#if HAVE_UNISTD_H +#include +#endif +#include +#include +#if HAVE_FCFINI +#include +#endif +#if CAIRO_HAS_REAL_PTHREAD +#include +#endif +#if HAVE_SYS_STAT_H +#include +#endif + +#if HAVE_VALGRIND +#include +#else +#define RUNNING_ON_VALGRIND 0 +#endif + +#if HAVE_MEMFAULT +#include +#define MF(x) x +#else +#define MF(x) +#endif + +#include "cairo-test-private.h" + +#include "buffer-diff.h" + +#ifdef _MSC_VER +#include +#include +#define F_OK 0 +#define HAVE_MKDIR 1 +#define mkdir _mkdir +#endif + +#ifndef FALSE +#define FALSE 0 +#endif +#ifndef TRUE +#define TRUE !FALSE +#endif + +#if ! HAVE_ALARM || ! defined(SIGALRM) +#define alarm(X); +#endif + +static const cairo_user_data_key_t _cairo_test_context_key; + +static void +_xunlink (const cairo_test_context_t *ctx, const char *pathname); + +static const char *fail_face = "", *xfail_face="", *normal_face = ""; +static cairo_bool_t print_fail_on_stdout; +static int cairo_test_timeout = 60; + +#define NUM_DEVICE_OFFSETS 2 +#define NUM_DEVICE_SCALE 2 + +cairo_bool_t +cairo_test_mkdir (const char *path) +{ +#if ! HAVE_MKDIR + return FALSE; +#elif HAVE_MKDIR == 1 + if (mkdir (path) == 0) + return TRUE; +#elif HAVE_MKDIR == 2 + if (mkdir (path, 0770) == 0) + return TRUE; +#else +#error Bad value for HAVE_MKDIR +#endif + + return errno == EEXIST; +} + +static char * +_cairo_test_fixup_name (const char *original) +{ + char *name, *s; + + s = name = xstrdup (original); + while ((s = strchr (s, '_')) != NULL) + *s++ = '-'; + + return name; +} + +char * +cairo_test_get_name (const cairo_test_t *test) +{ + return _cairo_test_fixup_name (test->name); +} + +static void +_cairo_test_init (cairo_test_context_t *ctx, + const cairo_test_context_t *parent, + const cairo_test_t *test, + const char *test_name, + const char *output) +{ + char *log_name; + + MF (MEMFAULT_DISABLE_FAULTS ()); + +#if HAVE_FEENABLEEXCEPT + feenableexcept (FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW); +#endif + + ctx->test = test; + ctx->test_name = _cairo_test_fixup_name (test_name); + ctx->output = output; + + cairo_test_mkdir (ctx->output); + + ctx->malloc_failure = 0; +#if HAVE_MEMFAULT + if (getenv ("CAIRO_TEST_MALLOC_FAILURE")) + ctx->malloc_failure = atoi (getenv ("CAIRO_TEST_MALLOC_FAILURE")); + if (ctx->malloc_failure && ! RUNNING_ON_MEMFAULT ()) + ctx->malloc_failure = 0; +#endif + + ctx->timeout = cairo_test_timeout; + if (getenv ("CAIRO_TEST_TIMEOUT")) + ctx->timeout = atoi (getenv ("CAIRO_TEST_TIMEOUT")); + + xasprintf (&log_name, "%s/%s%s", ctx->output, ctx->test_name, CAIRO_TEST_LOG_SUFFIX); + _xunlink (NULL, log_name); + + ctx->log_file = fopen (log_name, "a"); + if (ctx->log_file == NULL) { + fprintf (stderr, "Error opening log file: %s\n", log_name); + ctx->log_file = stderr; + } + free (log_name); + + ctx->ref_name = NULL; + ctx->ref_image = NULL; + ctx->ref_image_flattened = NULL; + + if (parent != NULL) { + ctx->targets_to_test = parent->targets_to_test; + ctx->num_targets = parent->num_targets; + ctx->limited_targets = parent->limited_targets; + ctx->own_targets = FALSE; + + ctx->srcdir = parent->srcdir; + ctx->refdir = xstrdup (parent->refdir); + } else { + int tmp_num_targets; + cairo_bool_t tmp_limited_targets; + + ctx->targets_to_test = cairo_boilerplate_get_targets (&tmp_num_targets, &tmp_limited_targets); + ctx->num_targets = tmp_num_targets; + ctx->limited_targets = tmp_limited_targets; + ctx->own_targets = TRUE; + + ctx->srcdir = getenv ("srcdir"); + if (ctx->srcdir == NULL) { + ctx->srcdir = "."; +#if HAVE_SYS_STAT_H + struct stat st; + if (stat ("srcdir", &st) == 0 && (st.st_mode & S_IFDIR)) + ctx->srcdir = "srcdir"; +#endif + } + + ctx->refdir = xstrdup (getenv ("CAIRO_REF_DIR")); + if (ctx->refdir == NULL) + xasprintf (&ctx->refdir, "%s/reference", ctx->srcdir); + } + +#ifdef HAVE_UNISTD_H + if (*fail_face == '\0' && isatty (2)) { + fail_face = "\033[41;37;1m"; + xfail_face = "\033[43;37;1m"; + normal_face = "\033[m"; + if (isatty (1)) + print_fail_on_stdout = FALSE; + } +#endif + + printf ("\nTESTING %s\n", ctx->test_name); +} + +void +_cairo_test_context_init_for_test (cairo_test_context_t *ctx, + const cairo_test_context_t *parent, + const cairo_test_t *test) +{ + _cairo_test_init (ctx, parent, test, test->name, CAIRO_TEST_OUTPUT_DIR); +} + +void +cairo_test_init (cairo_test_context_t *ctx, + const char *test_name, + const char *output) +{ + _cairo_test_init (ctx, NULL, NULL, test_name, output); +} + +void +cairo_test_fini (cairo_test_context_t *ctx) +{ + if (ctx->log_file == NULL) + return; + + if (ctx->log_file != stderr) + fclose (ctx->log_file); + ctx->log_file = NULL; + + free (ctx->refdir); + free (ctx->ref_name); + cairo_surface_destroy (ctx->ref_image); + cairo_surface_destroy (ctx->ref_image_flattened); + + if (ctx->test_name != NULL) + free ((char *) ctx->test_name); + + if (ctx->own_targets) + cairo_boilerplate_free_targets (ctx->targets_to_test); + + cairo_boilerplate_fini (); + + cairo_debug_reset_static_data (); +#if HAVE_FCFINI + FcFini (); +#endif +} + +void +cairo_test_logv (const cairo_test_context_t *ctx, + const char *fmt, va_list va) +{ + FILE *file = ctx && ctx->log_file ? ctx->log_file : stderr; + vfprintf (file, fmt, va); +} + +void +cairo_test_log (const cairo_test_context_t *ctx, const char *fmt, ...) +{ + va_list va; + + va_start (va, fmt); + cairo_test_logv (ctx, fmt, va); + va_end (va); +} + +static void +_xunlink (const cairo_test_context_t *ctx, const char *pathname) +{ + if (unlink (pathname) < 0 && errno != ENOENT) { + cairo_test_log (ctx, "Error: Cannot remove %s: %s\n", + pathname, strerror (errno)); + exit (1); + } +} + +char * +cairo_test_reference_filename (const cairo_test_context_t *ctx, + const char *base_name, + const char *test_name, + const char *target_name, + const char *base_target_name, + const char *format, + const char *suffix, + const char *extension) +{ + char *ref_name = NULL; + + /* First look for a previous build for comparison. */ + if (ctx->refdir != NULL && strcmp(suffix, CAIRO_TEST_REF_SUFFIX) == 0) { + xasprintf (&ref_name, "%s/%s" CAIRO_TEST_OUT_SUFFIX "%s", + ctx->refdir, + base_name, + extension); + if (access (ref_name, F_OK) != 0) + free (ref_name); + else + goto done; + } + + if (target_name != NULL) { + /* Next look for a target/format-specific reference image. */ + xasprintf (&ref_name, "%s/reference/%s.%s.%s%s%s", + ctx->srcdir, + test_name, + target_name, + format, + suffix, + extension); + if (access (ref_name, F_OK) != 0) + free (ref_name); + else + goto done; + + /* Next, look for target-specific reference image. */ + xasprintf (&ref_name, "%s/reference/%s.%s%s%s", + ctx->srcdir, + test_name, + target_name, + suffix, + extension); + if (access (ref_name, F_OK) != 0) + free (ref_name); + else + goto done; + } + + if (base_target_name != NULL) { + /* Next look for a base/format-specific reference image. */ + xasprintf (&ref_name, "%s/reference/%s.%s.%s%s%s", + ctx->srcdir, + test_name, + base_target_name, + format, + suffix, + extension); + if (access (ref_name, F_OK) != 0) + free (ref_name); + else + goto done; + + /* Next, look for base-specific reference image. */ + xasprintf (&ref_name, "%s/reference/%s.%s%s%s", + ctx->srcdir, + test_name, + base_target_name, + suffix, + extension); + if (access (ref_name, F_OK) != 0) + free (ref_name); + else + goto done; + } + + /* Next, look for format-specific reference image. */ + xasprintf (&ref_name, "%s/reference/%s.%s%s%s", + ctx->srcdir, + test_name, + format, + suffix, + extension); + if (access (ref_name, F_OK) != 0) + free (ref_name); + else + goto done; + + /* Finally, look for the standard reference image. */ + xasprintf (&ref_name, "%s/reference/%s%s%s", ctx->srcdir, + test_name, + suffix, + extension); + if (access (ref_name, F_OK) != 0) + free (ref_name); + else + goto done; + + ref_name = NULL; + +done: + return ref_name; +} + +cairo_test_similar_t +cairo_test_target_has_similar (const cairo_test_context_t *ctx, + const cairo_boilerplate_target_t *target) +{ + cairo_surface_t *surface; + cairo_test_similar_t has_similar; + cairo_t * cr; + cairo_surface_t *similar; + cairo_status_t status; + void *closure; + char *path; + + /* ignore image intermediate targets */ + if (target->expected_type == CAIRO_SURFACE_TYPE_IMAGE) + return DIRECT; + + if (getenv ("CAIRO_TEST_IGNORE_SIMILAR")) + return DIRECT; + + xasprintf (&path, "%s/%s", + cairo_test_mkdir (ctx->output) ? ctx->output : ".", + ctx->test_name); + + has_similar = DIRECT; + do { + do { + surface = (target->create_surface) (path, + target->content, + ctx->test->width, + ctx->test->height, + ctx->test->width* NUM_DEVICE_SCALE + 25 * NUM_DEVICE_OFFSETS, + ctx->test->height* NUM_DEVICE_SCALE + 25 * NUM_DEVICE_OFFSETS, + CAIRO_BOILERPLATE_MODE_TEST, + &closure); + if (surface == NULL) + goto out; + } while (cairo_test_malloc_failure (ctx, cairo_surface_status (surface))); + + if (cairo_surface_status (surface)) + goto out; + + cr = cairo_create (surface); + cairo_push_group_with_content (cr, + cairo_boilerplate_content (target->content)); + similar = cairo_get_group_target (cr); + status = cairo_surface_status (similar); + + if (cairo_surface_get_type (similar) == cairo_surface_get_type (surface)) + has_similar = SIMILAR; + else + has_similar = DIRECT; + + cairo_destroy (cr); + cairo_surface_destroy (surface); + + if (target->cleanup) + target->cleanup (closure); + } while (! has_similar && cairo_test_malloc_failure (ctx, status)); +out: + free (path); + + return has_similar; +} + +static cairo_surface_t * +_cairo_test_flatten_reference_image (cairo_test_context_t *ctx, + cairo_bool_t flatten) +{ + cairo_surface_t *surface; + cairo_t *cr; + + if (! flatten) + return ctx->ref_image; + + if (ctx->ref_image_flattened != NULL) + return ctx->ref_image_flattened; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + cairo_image_surface_get_width (ctx->ref_image), + cairo_image_surface_get_height (ctx->ref_image)); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_surface (cr, ctx->ref_image, 0, 0); + cairo_paint (cr); + + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + if (cairo_surface_status (surface) == CAIRO_STATUS_SUCCESS) + ctx->ref_image_flattened = surface; + return surface; +} + +cairo_surface_t * +cairo_test_get_reference_image (cairo_test_context_t *ctx, + const char *filename, + cairo_bool_t flatten) +{ + cairo_surface_t *surface; + + if (ctx->ref_name != NULL) { + if (strcmp (ctx->ref_name, filename) == 0) + return _cairo_test_flatten_reference_image (ctx, flatten); + + cairo_surface_destroy (ctx->ref_image); + ctx->ref_image = NULL; + + cairo_surface_destroy (ctx->ref_image_flattened); + ctx->ref_image_flattened = NULL; + + free (ctx->ref_name); + ctx->ref_name = NULL; + } + + surface = cairo_image_surface_create_from_png (filename); + if (cairo_surface_status (surface)) + return surface; + + ctx->ref_name = xstrdup (filename); + ctx->ref_image = surface; + return _cairo_test_flatten_reference_image (ctx, flatten); +} + +static cairo_bool_t +cairo_test_file_is_older (const char *filename, + char **ref_filenames, + int num_ref_filenames) +{ +#if HAVE_SYS_STAT_H + struct stat st; + + if (stat (filename, &st) < 0) + return FALSE; + + while (num_ref_filenames--) { + struct stat ref; + char *ref_filename = *ref_filenames++; + + if (ref_filename == NULL) + continue; + + if (stat (ref_filename++, &ref) < 0) + continue; + + if (st.st_mtime <= ref.st_mtime) + return TRUE; + } +#endif + + return FALSE; +} + +static cairo_bool_t +cairo_test_files_equal (const char *test_filename, + const char *pass_filename) +{ + FILE *test, *pass; + int t, p; + + if (test_filename == NULL || pass_filename == NULL) + return FALSE; + + test = fopen (test_filename, "rb"); + if (test == NULL) + return FALSE; + + pass = fopen (pass_filename, "rb"); + if (pass == NULL) { + fclose (test); + return FALSE; + } + + /* as simple as it gets */ + do { + t = getc (test); + p = getc (pass); + if (t != p) + break; + } while (t != EOF && p != EOF); + + fclose (pass); + fclose (test); + + return t == p; /* both EOF */ +} + +static cairo_bool_t +cairo_test_copy_file (const char *src_filename, + const char *dst_filename) +{ + FILE *src, *dst; + int c; + +#if HAVE_LINK + if (link (src_filename, dst_filename) == 0) + return TRUE; + + unlink (dst_filename); +#endif + + src = fopen (src_filename, "rb"); + if (src == NULL) + return FALSE; + + dst = fopen (dst_filename, "wb"); + if (dst == NULL) { + fclose (src); + return FALSE; + } + + /* as simple as it gets */ + while ((c = getc (src)) != EOF) + putc (c, dst); + + fclose (src); + fclose (dst); + + return TRUE; +} + +static cairo_test_status_t +cairo_test_for_target (cairo_test_context_t *ctx, + const cairo_boilerplate_target_t *target, + int dev_offset, + int dev_scale, + cairo_bool_t similar) +{ + cairo_status_t finish_status; + cairo_surface_t *surface = NULL; + cairo_t *cr; + const char *empty_str = ""; + char *offset_str; + char *scale_str; + char *base_name, *base_path; + char *out_png_path; + char *ref_path = NULL, *ref_png_path, *cmp_png_path = NULL; + char *new_path = NULL, *new_png_path; + char *xfail_path = NULL, *xfail_png_path; + char *base_ref_png_path; + char *base_new_png_path; + char *base_xfail_png_path; + char *diff_png_path; + char *test_filename = NULL, *pass_filename = NULL, *fail_filename = NULL; + cairo_test_status_t ret, test_status; + cairo_content_t expected_content; + cairo_font_options_t *font_options; + const char *format; + cairo_bool_t have_output = FALSE; + cairo_bool_t have_result = FALSE; + void *closure; + double width, height; + cairo_bool_t have_output_dir; +#if HAVE_MEMFAULT + int malloc_failure_iterations = ctx->malloc_failure; + int last_fault_count = 0; +#endif + + /* Get the strings ready that we'll need. */ + format = cairo_boilerplate_content_name (target->content); + if (dev_offset) + xasprintf (&offset_str, ".%d", dev_offset); + else + offset_str = (char *) empty_str; + + if (dev_scale != 1) + xasprintf (&scale_str, ".x%d", dev_scale); + else + scale_str = (char *) empty_str; + + xasprintf (&base_name, "%s.%s.%s%s%s%s", + ctx->test_name, + target->name, + format, + similar ? ".similar" : "", + offset_str, + scale_str); + + if (offset_str != empty_str) + free (offset_str); + if (scale_str != empty_str) + free (scale_str); + + ref_png_path = cairo_test_reference_filename (ctx, + base_name, + ctx->test_name, + target->name, + target->basename, + format, + CAIRO_TEST_REF_SUFFIX, + CAIRO_TEST_PNG_EXTENSION); + new_png_path = cairo_test_reference_filename (ctx, + base_name, + ctx->test_name, + target->name, + target->basename, + format, + CAIRO_TEST_NEW_SUFFIX, + CAIRO_TEST_PNG_EXTENSION); + xfail_png_path = cairo_test_reference_filename (ctx, + base_name, + ctx->test_name, + target->name, + target->basename, + format, + CAIRO_TEST_XFAIL_SUFFIX, + CAIRO_TEST_PNG_EXTENSION); + + base_ref_png_path = cairo_test_reference_filename (ctx, + base_name, + ctx->test_name, + NULL, NULL, + format, + CAIRO_TEST_REF_SUFFIX, + CAIRO_TEST_PNG_EXTENSION); + base_new_png_path = cairo_test_reference_filename (ctx, + base_name, + ctx->test_name, + NULL, NULL, + format, + CAIRO_TEST_NEW_SUFFIX, + CAIRO_TEST_PNG_EXTENSION); + base_xfail_png_path = cairo_test_reference_filename (ctx, + base_name, + ctx->test_name, + NULL, NULL, + format, + CAIRO_TEST_XFAIL_SUFFIX, + CAIRO_TEST_PNG_EXTENSION); + + if (target->file_extension != NULL) { + ref_path = cairo_test_reference_filename (ctx, + base_name, + ctx->test_name, + target->name, + target->basename, + format, + CAIRO_TEST_REF_SUFFIX, + target->file_extension); + new_path = cairo_test_reference_filename (ctx, + base_name, + ctx->test_name, + target->name, + target->basename, + format, + CAIRO_TEST_NEW_SUFFIX, + target->file_extension); + xfail_path = cairo_test_reference_filename (ctx, + base_name, + ctx->test_name, + target->name, + target->basename, + format, + CAIRO_TEST_XFAIL_SUFFIX, + target->file_extension); + } + + have_output_dir = cairo_test_mkdir (ctx->output); + xasprintf (&base_path, "%s/%s", + have_output_dir ? ctx->output : ".", + base_name); + xasprintf (&out_png_path, "%s" CAIRO_TEST_OUT_PNG, base_path); + xasprintf (&diff_png_path, "%s" CAIRO_TEST_DIFF_PNG, base_path); + + if (ctx->test->requirements != NULL) { + const char *required; + + required = target->is_vector ? "target=raster" : "target=vector"; + if (strstr (ctx->test->requirements, required) != NULL) { + cairo_test_log (ctx, "Error: Skipping for %s target %s\n", + target->is_vector ? "vector" : "raster", + target->name); + ret = CAIRO_TEST_UNTESTED; + goto UNWIND_STRINGS; + } + + required = target->is_recording ? "target=!recording" : "target=recording"; + if (strstr (ctx->test->requirements, required) != NULL) { + cairo_test_log (ctx, "Error: Skipping for %s target %s\n", + target->is_recording ? "recording" : "non-recording", + target->name); + ret = CAIRO_TEST_UNTESTED; + goto UNWIND_STRINGS; + } + } + + width = ctx->test->width; + height = ctx->test->height; + if (width && height) { + width *= dev_scale; + height *= dev_scale; + width += dev_offset; + height += dev_offset; + } + +#if HAVE_MEMFAULT +REPEAT: + MEMFAULT_CLEAR_FAULTS (); + MEMFAULT_RESET_LEAKS (); + ctx->last_fault_count = 0; + last_fault_count = MEMFAULT_COUNT_FAULTS (); + + /* Pre-initialise fontconfig so that the configuration is loaded without + * malloc failures (our primary goal is to test cairo fault tolerance). + */ +#if HAVE_FCINIT + FcInit (); +#endif + + MEMFAULT_ENABLE_FAULTS (); +#endif + have_output = FALSE; + have_result = FALSE; + + /* Run the actual drawing code. */ + ret = CAIRO_TEST_SUCCESS; + surface = (target->create_surface) (base_path, + target->content, + width, height, + ctx->test->width * NUM_DEVICE_SCALE + 25 * NUM_DEVICE_OFFSETS, + ctx->test->height * NUM_DEVICE_SCALE + 25 * NUM_DEVICE_OFFSETS, + CAIRO_BOILERPLATE_MODE_TEST, + &closure); + if (surface == NULL) { + cairo_test_log (ctx, "Error: Failed to set %s target\n", target->name); + ret = CAIRO_TEST_UNTESTED; + goto UNWIND_STRINGS; + } + +#if HAVE_MEMFAULT + if (ctx->malloc_failure && + MEMFAULT_COUNT_FAULTS () - last_fault_count > 0 && + cairo_surface_status (surface) == CAIRO_STATUS_NO_MEMORY) + { + goto REPEAT; + } +#endif + + if (cairo_surface_status (surface)) { + MF (MEMFAULT_PRINT_FAULTS ()); + cairo_test_log (ctx, "Error: Created an error surface: %s\n", + cairo_status_to_string (cairo_surface_status (surface))); + ret = CAIRO_TEST_FAILURE; + goto UNWIND_STRINGS; + } + + /* Check that we created a surface of the expected type. */ + if (cairo_surface_get_type (surface) != target->expected_type) { + MF (MEMFAULT_PRINT_FAULTS ()); + cairo_test_log (ctx, "Error: Created surface is of type %d (expected %d)\n", + cairo_surface_get_type (surface), target->expected_type); + ret = CAIRO_TEST_UNTESTED; + goto UNWIND_SURFACE; + } + + /* Check that we created a surface of the expected content, + * (ignore the artificial CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED value). + */ + expected_content = cairo_boilerplate_content (target->content); + + if (cairo_surface_get_content (surface) != expected_content) { + MF (MEMFAULT_PRINT_FAULTS ()); + cairo_test_log (ctx, "Error: Created surface has content %d (expected %d)\n", + cairo_surface_get_content (surface), expected_content); + ret = CAIRO_TEST_FAILURE; + goto UNWIND_SURFACE; + } + + if (cairo_surface_set_user_data (surface, + &cairo_boilerplate_output_basename_key, + base_path, + NULL)) + { +#if HAVE_MEMFAULT + cairo_surface_destroy (surface); + + if (target->cleanup) + target->cleanup (closure); + + goto REPEAT; +#else + ret = CAIRO_TEST_FAILURE; + goto UNWIND_SURFACE; +#endif + } + + cairo_surface_set_device_offset (surface, dev_offset, dev_offset); + cairo_surface_set_device_scale (surface, dev_scale, dev_scale); + + cr = cairo_create (surface); + if (cairo_set_user_data (cr, &_cairo_test_context_key, (void*) ctx, NULL)) { +#if HAVE_MEMFAULT + cairo_destroy (cr); + cairo_surface_destroy (surface); + + if (target->cleanup) + target->cleanup (closure); + + goto REPEAT; +#else + ret = CAIRO_TEST_FAILURE; + goto UNWIND_CAIRO; +#endif + } + + if (similar) + cairo_push_group_with_content (cr, expected_content); + + /* Clear to transparent (or black) depending on whether the target + * surface supports alpha. */ + cairo_save (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr); + cairo_restore (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + /* Set all components of font_options to avoid backend differences + * and reduce number of needed reference images. */ + font_options = cairo_font_options_create (); + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_NONE); + cairo_font_options_set_hint_metrics (font_options, CAIRO_HINT_METRICS_ON); + cairo_font_options_set_antialias (font_options, CAIRO_ANTIALIAS_GRAY); + cairo_set_font_options (cr, font_options); + cairo_font_options_destroy (font_options); + + cairo_save (cr); + alarm (ctx->timeout); + test_status = (ctx->test->draw) (cr, ctx->test->width, ctx->test->height); + alarm (0); + cairo_restore (cr); + + if (similar) { + cairo_pop_group_to_source (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + } + +#if HAVE_MEMFAULT + MEMFAULT_DISABLE_FAULTS (); + + /* repeat test after malloc failure injection */ + if (ctx->malloc_failure && + MEMFAULT_COUNT_FAULTS () - last_fault_count > 0 && + (test_status == CAIRO_TEST_NO_MEMORY || + cairo_status (cr) == CAIRO_STATUS_NO_MEMORY || + cairo_surface_status (surface) == CAIRO_STATUS_NO_MEMORY)) + { + cairo_destroy (cr); + cairo_surface_destroy (surface); + if (target->cleanup) + target->cleanup (closure); + cairo_debug_reset_static_data (); +#if HAVE_FCFINI + FcFini (); +#endif + if (MEMFAULT_COUNT_LEAKS () > 0) { + MEMFAULT_PRINT_FAULTS (); + MEMFAULT_PRINT_LEAKS (); + } + + goto REPEAT; + } +#endif + + /* Then, check all the different ways it could fail. */ + if (test_status) { + cairo_test_log (ctx, "Error: Function under test failed\n"); + ret = test_status; + goto UNWIND_CAIRO; + } + +#if HAVE_MEMFAULT + if (MEMFAULT_COUNT_FAULTS () - last_fault_count > 0 && + MEMFAULT_HAS_FAULTS ()) + { + VALGRIND_PRINTF ("Unreported memfaults..."); + MEMFAULT_PRINT_FAULTS (); + } +#endif + + if (target->finish_surface != NULL) { +#if HAVE_MEMFAULT + /* We need to re-enable faults as most recording-surface processing + * is done during cairo_surface_finish(). + */ + MEMFAULT_CLEAR_FAULTS (); + last_fault_count = MEMFAULT_COUNT_FAULTS (); + MEMFAULT_ENABLE_FAULTS (); +#endif + + /* also check for infinite loops whilst replaying */ + alarm (ctx->timeout); + finish_status = target->finish_surface (surface); + alarm (0); + +#if HAVE_MEMFAULT + MEMFAULT_DISABLE_FAULTS (); + + if (ctx->malloc_failure && + MEMFAULT_COUNT_FAULTS () - last_fault_count > 0 && + finish_status == CAIRO_STATUS_NO_MEMORY) + { + cairo_destroy (cr); + cairo_surface_destroy (surface); + if (target->cleanup) + target->cleanup (closure); + cairo_debug_reset_static_data (); +#if HAVE_FCFINI + FcFini (); +#endif + if (MEMFAULT_COUNT_LEAKS () > 0) { + MEMFAULT_PRINT_FAULTS (); + MEMFAULT_PRINT_LEAKS (); + } + + goto REPEAT; + } +#endif + if (finish_status) { + cairo_test_log (ctx, "Error: Failed to finish surface: %s\n", + cairo_status_to_string (finish_status)); + ret = CAIRO_TEST_FAILURE; + goto UNWIND_CAIRO; + } + } + + /* Skip image check for tests with no image (width,height == 0,0) */ + if (ctx->test->width != 0 && ctx->test->height != 0) { + cairo_surface_t *ref_image; + cairo_surface_t *test_image; + cairo_surface_t *diff_image; + buffer_diff_result_t result; + cairo_status_t diff_status; + + if (ref_png_path == NULL) { + cairo_test_log (ctx, "Error: Cannot find reference image for %s\n", + base_name); + + /* we may be running this test to generate reference images */ + _xunlink (ctx, out_png_path); + /* be more generous as we may need to use external renderers */ + alarm (4 * ctx->timeout); + test_image = target->get_image_surface (surface, 0, + ctx->test->width, + ctx->test->height); + alarm (0); + diff_status = cairo_surface_write_to_png (test_image, out_png_path); + cairo_surface_destroy (test_image); + if (diff_status) { + if (cairo_surface_status (test_image) == CAIRO_STATUS_INVALID_STATUS) + ret = CAIRO_TEST_CRASHED; + else + ret = CAIRO_TEST_FAILURE; + cairo_test_log (ctx, + "Error: Failed to write output image: %s\n", + cairo_status_to_string (diff_status)); + } + have_output = TRUE; + + ret = CAIRO_TEST_XFAILURE; + goto UNWIND_CAIRO; + } + + if (target->file_extension != NULL) { /* compare vector surfaces */ + char *filenames[] = { + ref_png_path, + ref_path, + new_png_path, + new_path, + xfail_png_path, + xfail_path, + base_ref_png_path, + base_new_png_path, + base_xfail_png_path, + }; + + xasprintf (&test_filename, "%s.out%s", + base_path, target->file_extension); + xasprintf (&pass_filename, "%s.pass%s", + base_path, target->file_extension); + xasprintf (&fail_filename, "%s.fail%s", + base_path, target->file_extension); + + if (cairo_test_file_is_older (pass_filename, + filenames, + ARRAY_LENGTH (filenames))) + { + _xunlink (ctx, pass_filename); + } + if (cairo_test_file_is_older (fail_filename, + filenames, + ARRAY_LENGTH (filenames))) + { + _xunlink (ctx, fail_filename); + } + + if (cairo_test_files_equal (out_png_path, ref_path)) { + cairo_test_log (ctx, "Vector surface matches reference.\n"); + have_output = FALSE; + ret = CAIRO_TEST_SUCCESS; + goto UNWIND_CAIRO; + } + if (cairo_test_files_equal (out_png_path, new_path)) { + cairo_test_log (ctx, "Vector surface matches current failure.\n"); + have_output = FALSE; + ret = CAIRO_TEST_NEW; + goto UNWIND_CAIRO; + } + if (cairo_test_files_equal (out_png_path, xfail_path)) { + cairo_test_log (ctx, "Vector surface matches known failure.\n"); + have_output = FALSE; + ret = CAIRO_TEST_XFAILURE; + goto UNWIND_CAIRO; + } + + if (cairo_test_files_equal (test_filename, pass_filename)) { + /* identical output as last known PASS */ + cairo_test_log (ctx, "Vector surface matches last pass.\n"); + have_output = TRUE; + ret = CAIRO_TEST_SUCCESS; + goto UNWIND_CAIRO; + } + if (cairo_test_files_equal (test_filename, fail_filename)) { + /* identical output as last known FAIL, fail */ + cairo_test_log (ctx, "Vector surface matches last fail.\n"); + have_result = TRUE; /* presume these were kept around as well */ + have_output = TRUE; + ret = CAIRO_TEST_FAILURE; + goto UNWIND_CAIRO; + } + } + + /* be more generous as we may need to use external renderers */ + alarm (4 * ctx->timeout); + test_image = target->get_image_surface (surface, 0, + ctx->test->width, + ctx->test->height); + alarm (0); + if (cairo_surface_status (test_image)) { + cairo_test_log (ctx, "Error: Failed to extract image: %s\n", + cairo_status_to_string (cairo_surface_status (test_image))); + if (cairo_surface_status (test_image) == CAIRO_STATUS_INVALID_STATUS) + ret = CAIRO_TEST_CRASHED; + else + ret = CAIRO_TEST_FAILURE; + cairo_surface_destroy (test_image); + goto UNWIND_CAIRO; + } + + _xunlink (ctx, out_png_path); + diff_status = cairo_surface_write_to_png (test_image, out_png_path); + if (diff_status) { + cairo_test_log (ctx, "Error: Failed to write output image: %s\n", + cairo_status_to_string (diff_status)); + cairo_surface_destroy (test_image); + ret = CAIRO_TEST_FAILURE; + goto UNWIND_CAIRO; + } + have_output = TRUE; + + /* binary compare png files (no decompression) */ + if (target->file_extension == NULL) { + char *filenames[] = { + ref_png_path, + new_png_path, + xfail_png_path, + base_ref_png_path, + base_new_png_path, + base_xfail_png_path, + }; + + xasprintf (&test_filename, "%s", out_png_path); + xasprintf (&pass_filename, "%s.pass.png", base_path); + xasprintf (&fail_filename, "%s.fail.png", base_path); + + if (cairo_test_file_is_older (pass_filename, + filenames, + ARRAY_LENGTH (filenames))) + { + _xunlink (ctx, pass_filename); + } + if (cairo_test_file_is_older (fail_filename, + filenames, + ARRAY_LENGTH (filenames))) + { + _xunlink (ctx, fail_filename); + } + + if (cairo_test_files_equal (test_filename, pass_filename)) { + cairo_test_log (ctx, "PNG file exactly matches last pass.\n"); + have_result = TRUE; + cairo_surface_destroy (test_image); + ret = CAIRO_TEST_SUCCESS; + goto UNWIND_CAIRO; + } + if (cairo_test_files_equal (out_png_path, ref_png_path)) { + cairo_test_log (ctx, "PNG file exactly matches reference image.\n"); + have_result = TRUE; + cairo_surface_destroy (test_image); + ret = CAIRO_TEST_SUCCESS; + goto UNWIND_CAIRO; + } + if (cairo_test_files_equal (out_png_path, new_png_path)) { + cairo_test_log (ctx, "PNG file exactly matches current failure image.\n"); + have_result = TRUE; + cairo_surface_destroy (test_image); + ret = CAIRO_TEST_NEW; + goto UNWIND_CAIRO; + } + if (cairo_test_files_equal (out_png_path, xfail_png_path)) { + cairo_test_log (ctx, "PNG file exactly matches known failure image.\n"); + have_result = TRUE; + cairo_surface_destroy (test_image); + ret = CAIRO_TEST_XFAILURE; + goto UNWIND_CAIRO; + } + if (cairo_test_files_equal (test_filename, fail_filename)) { + cairo_test_log (ctx, "PNG file exactly matches last fail.\n"); + have_result = TRUE; /* presume these were kept around as well */ + cairo_surface_destroy (test_image); + ret = CAIRO_TEST_FAILURE; + goto UNWIND_CAIRO; + } + } else { + if (cairo_test_files_equal (out_png_path, ref_png_path)) { + cairo_test_log (ctx, "PNG file exactly matches reference image.\n"); + have_result = TRUE; + cairo_surface_destroy (test_image); + ret = CAIRO_TEST_SUCCESS; + goto UNWIND_CAIRO; + } + if (cairo_test_files_equal (out_png_path, new_png_path)) { + cairo_test_log (ctx, "PNG file exactly matches current failure image.\n"); + have_result = TRUE; + cairo_surface_destroy (test_image); + ret = CAIRO_TEST_NEW; + goto UNWIND_CAIRO; + } + if (cairo_test_files_equal (out_png_path, xfail_png_path)) { + cairo_test_log (ctx, "PNG file exactly matches known failure image.\n"); + have_result = TRUE; + cairo_surface_destroy (test_image); + ret = CAIRO_TEST_XFAILURE; + goto UNWIND_CAIRO; + } + } + + if (cairo_test_files_equal (out_png_path, base_ref_png_path)) { + cairo_test_log (ctx, "PNG file exactly reference image.\n"); + have_result = TRUE; + cairo_surface_destroy (test_image); + ret = CAIRO_TEST_SUCCESS; + goto UNWIND_CAIRO; + } + if (cairo_test_files_equal (out_png_path, base_new_png_path)) { + cairo_test_log (ctx, "PNG file exactly current failure image.\n"); + have_result = TRUE; + cairo_surface_destroy (test_image); + ret = CAIRO_TEST_NEW; + goto UNWIND_CAIRO; + } + if (cairo_test_files_equal (out_png_path, base_xfail_png_path)) { + cairo_test_log (ctx, "PNG file exactly known failure image.\n"); + have_result = TRUE; + cairo_surface_destroy (test_image); + ret = CAIRO_TEST_XFAILURE; + goto UNWIND_CAIRO; + } + + /* first compare against the ideal reference */ + ref_image = cairo_test_get_reference_image (ctx, base_ref_png_path, + target->content == CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED); + if (cairo_surface_status (ref_image)) { + cairo_test_log (ctx, "Error: Cannot open reference image for %s: %s\n", + base_ref_png_path, + cairo_status_to_string (cairo_surface_status (ref_image))); + cairo_surface_destroy (test_image); + ret = CAIRO_TEST_FAILURE; + goto UNWIND_CAIRO; + } + + diff_image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + ctx->test->width, + ctx->test->height); + + cmp_png_path = base_ref_png_path; + diff_status = image_diff (ctx, + test_image, ref_image, diff_image, + &result); + _xunlink (ctx, diff_png_path); + if (diff_status || + image_diff_is_failure (&result, target->error_tolerance)) + { + /* that failed, so check against the specific backend */ + ref_image = cairo_test_get_reference_image (ctx, ref_png_path, + target->content == CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED); + if (cairo_surface_status (ref_image)) { + cairo_test_log (ctx, "Error: Cannot open reference image for %s: %s\n", + ref_png_path, + cairo_status_to_string (cairo_surface_status (ref_image))); + cairo_surface_destroy (test_image); + ret = CAIRO_TEST_FAILURE; + goto UNWIND_CAIRO; + } + + cmp_png_path = ref_png_path; + diff_status = image_diff (ctx, + test_image, ref_image, + diff_image, + &result); + if (diff_status) + { + cairo_test_log (ctx, "Error: Failed to compare images: %s\n", + cairo_status_to_string (diff_status)); + ret = CAIRO_TEST_FAILURE; + } + else if (image_diff_is_failure (&result, target->error_tolerance)) + { + ret = CAIRO_TEST_FAILURE; + + diff_status = cairo_surface_write_to_png (diff_image, + diff_png_path); + if (diff_status) { + cairo_test_log (ctx, "Error: Failed to write differences image: %s\n", + cairo_status_to_string (diff_status)); + } else { + have_result = TRUE; + } + + cairo_test_copy_file (test_filename, fail_filename); + } + else + { /* success */ + cairo_test_copy_file (test_filename, pass_filename); + } + } + else + { /* success */ + cairo_test_copy_file (test_filename, pass_filename); + } + + /* If failed, compare against the current image output, + * and attempt to detect systematic failures. + */ + if (ret == CAIRO_TEST_FAILURE) { + char *image_out_path; + + image_out_path = + cairo_test_reference_filename (ctx, + base_name, + ctx->test_name, + "image", + "image", + format, + CAIRO_TEST_OUT_SUFFIX, + CAIRO_TEST_PNG_EXTENSION); + if (image_out_path != NULL) { + if (cairo_test_files_equal (out_png_path, + image_out_path)) + { + ret = CAIRO_TEST_XFAILURE; + } + else + { + ref_image = + cairo_image_surface_create_from_png (image_out_path); + if (cairo_surface_status (ref_image) == CAIRO_STATUS_SUCCESS) + { + diff_status = image_diff (ctx, + test_image, ref_image, + diff_image, + &result); + if (diff_status == CAIRO_STATUS_SUCCESS && + !image_diff_is_failure (&result, target->error_tolerance)) + { + ret = CAIRO_TEST_XFAILURE; + } + + cairo_surface_destroy (ref_image); + } + } + + free (image_out_path); + } + } + + cairo_surface_destroy (test_image); + cairo_surface_destroy (diff_image); + } + + if (cairo_status (cr) != CAIRO_STATUS_SUCCESS) { + cairo_test_log (ctx, "Error: Function under test left cairo status in an error state: %s\n", + cairo_status_to_string (cairo_status (cr))); + ret = CAIRO_TEST_ERROR; + goto UNWIND_CAIRO; + } + +UNWIND_CAIRO: + free (test_filename); + free (fail_filename); + free (pass_filename); + + test_filename = fail_filename = pass_filename = NULL; + +#if HAVE_MEMFAULT + if (ret == CAIRO_TEST_FAILURE) + MEMFAULT_PRINT_FAULTS (); +#endif + cairo_destroy (cr); +UNWIND_SURFACE: + cairo_surface_destroy (surface); + + if (target->cleanup) + target->cleanup (closure); + +#if HAVE_MEMFAULT + cairo_debug_reset_static_data (); + +#if HAVE_FCFINI + FcFini (); +#endif + + if (MEMFAULT_COUNT_LEAKS () > 0) { + if (ret != CAIRO_TEST_FAILURE) + MEMFAULT_PRINT_FAULTS (); + MEMFAULT_PRINT_LEAKS (); + } + + if (ret == CAIRO_TEST_SUCCESS && --malloc_failure_iterations > 0) + goto REPEAT; +#endif + + if (have_output) + cairo_test_log (ctx, "OUTPUT: %s\n", out_png_path); + + if (have_result) { + if (cmp_png_path == NULL) { + /* XXX presume we matched the normal ref last time */ + cmp_png_path = ref_png_path; + } + cairo_test_log (ctx, + "REFERENCE: %s\nDIFFERENCE: %s\n", + cmp_png_path, diff_png_path); + } + +UNWIND_STRINGS: + free (out_png_path); + free (ref_png_path); + free (base_ref_png_path); + free (ref_path); + free (new_png_path); + free (base_new_png_path); + free (new_path); + free (xfail_png_path); + free (base_xfail_png_path); + free (xfail_path); + free (diff_png_path); + free (base_path); + free (base_name); + + return ret; +} + +#if defined(HAVE_SIGNAL_H) && defined(HAVE_SETJMP_H) +#include +#include +/* Used to catch crashes in a test, so that we report it as such and + * continue testing, although one crash may already have corrupted memory in + * an nonrecoverable fashion. */ +static jmp_buf jmpbuf; + +static void +segfault_handler (int signal) +{ + longjmp (jmpbuf, signal); +} +#endif + +cairo_test_status_t +_cairo_test_context_run_for_target (cairo_test_context_t *ctx, + const cairo_boilerplate_target_t *target, + cairo_bool_t similar, + int dev_offset, int dev_scale) +{ + cairo_test_status_t status; + + if (target->get_image_surface == NULL) + return CAIRO_TEST_UNTESTED; + + if (similar && ! cairo_test_target_has_similar (ctx, target)) + return CAIRO_TEST_UNTESTED; + + cairo_test_log (ctx, + "Testing %s with %s%s target (dev offset %d scale: %d)\n", + ctx->test_name, + similar ? " (similar) " : "", + target->name, + dev_offset, dev_scale); + + printf ("%s.%s.%s [%dx%d]%s:\t", ctx->test_name, target->name, + cairo_boilerplate_content_name (target->content), + dev_offset, dev_scale, + similar ? " (similar)": ""); + fflush (stdout); + +#if defined(HAVE_SIGNAL_H) && defined(HAVE_SETJMP_H) + if (! RUNNING_ON_VALGRIND) { + void (* volatile old_segfault_handler)(int); + void (* volatile old_segfpe_handler)(int); +#ifdef SIGPIPE + void (* volatile old_sigpipe_handler)(int); +#endif + void (* volatile old_sigabrt_handler)(int); +#ifdef SIGALRM + void (* volatile old_sigalrm_handler)(int); +#endif + + /* Set up a checkpoint to get back to in case of segfaults. */ +#ifdef SIGSEGV + old_segfault_handler = signal (SIGSEGV, segfault_handler); +#endif +#ifdef SIGFPE + old_segfpe_handler = signal (SIGFPE, segfault_handler); +#endif +#ifdef SIGPIPE + old_sigpipe_handler = signal (SIGPIPE, segfault_handler); +#endif +#ifdef SIGABRT + old_sigabrt_handler = signal (SIGABRT, segfault_handler); +#endif +#ifdef SIGALRM + old_sigalrm_handler = signal (SIGALRM, segfault_handler); +#endif + if (0 == setjmp (jmpbuf)) + status = cairo_test_for_target (ctx, target, dev_offset, dev_scale, similar); + else + status = CAIRO_TEST_CRASHED; +#ifdef SIGSEGV + signal (SIGSEGV, old_segfault_handler); +#endif +#ifdef SIGFPE + signal (SIGFPE, old_segfpe_handler); +#endif +#ifdef SIGPIPE + signal (SIGPIPE, old_sigpipe_handler); +#endif +#ifdef SIGABRT + signal (SIGABRT, old_sigabrt_handler); +#endif +#ifdef SIGALRM + signal (SIGALRM, old_sigalrm_handler); +#endif + } else { + status = cairo_test_for_target (ctx, target, dev_offset, dev_scale, similar); + } +#else + status = cairo_test_for_target (ctx, target, dev_offset, dev_scale, similar); +#endif + + cairo_test_log (ctx, + "TEST: %s TARGET: %s FORMAT: %s OFFSET: %d SCALE: %d SIMILAR: %d RESULT: ", + ctx->test_name, target->name, + cairo_boilerplate_content_name (target->content), + dev_offset, dev_scale, similar); + switch (status) { + case CAIRO_TEST_SUCCESS: + printf ("PASS\n"); + cairo_test_log (ctx, "PASS\n"); + break; + + case CAIRO_TEST_UNTESTED: + printf ("UNTESTED\n"); + cairo_test_log (ctx, "UNTESTED\n"); + break; + + default: + case CAIRO_TEST_CRASHED: + if (print_fail_on_stdout) { + printf ("!!!CRASHED!!!\n"); + } else { + /* eat the test name */ + printf ("\r"); + fflush (stdout); + } + cairo_test_log (ctx, "CRASHED\n"); + fprintf (stderr, "%s.%s.%s [%dx%d]%s:\t%s!!!CRASHED!!!%s\n", + ctx->test_name, target->name, + cairo_boilerplate_content_name (target->content), dev_offset, dev_scale, similar ? " (similar)" : "", + fail_face, normal_face); + break; + + case CAIRO_TEST_ERROR: + if (print_fail_on_stdout) { + printf ("!!!ERROR!!!\n"); + } else { + /* eat the test name */ + printf ("\r"); + fflush (stdout); + } + cairo_test_log (ctx, "ERROR\n"); + fprintf (stderr, "%s.%s.%s [%dx%d]%s:\t%s!!!ERROR!!!%s\n", + ctx->test_name, target->name, + cairo_boilerplate_content_name (target->content), dev_offset, dev_scale, similar ? " (similar)" : "", + fail_face, normal_face); + break; + + case CAIRO_TEST_XFAILURE: + if (print_fail_on_stdout) { + printf ("XFAIL\n"); + } else { + /* eat the test name */ + printf ("\r"); + fflush (stdout); + } + fprintf (stderr, "%s.%s.%s [%dx%d]%s:\t%sXFAIL%s\n", + ctx->test_name, target->name, + cairo_boilerplate_content_name (target->content), dev_offset, dev_scale, similar ? " (similar)" : "", + xfail_face, normal_face); + cairo_test_log (ctx, "XFAIL\n"); + break; + + case CAIRO_TEST_NEW: + if (print_fail_on_stdout) { + printf ("NEW\n"); + } else { + /* eat the test name */ + printf ("\r"); + fflush (stdout); + } + fprintf (stderr, "%s.%s.%s [%dx%d]%s:\t%sNEW%s\n", + ctx->test_name, target->name, + cairo_boilerplate_content_name (target->content), dev_offset, dev_scale, similar ? " (similar)" : "", + fail_face, normal_face); + cairo_test_log (ctx, "NEW\n"); + break; + + case CAIRO_TEST_NO_MEMORY: + case CAIRO_TEST_FAILURE: + if (print_fail_on_stdout) { + printf ("FAIL\n"); + } else { + /* eat the test name */ + printf ("\r"); + fflush (stdout); + } + fprintf (stderr, "%s.%s.%s [%dx%d]%s:\t%sFAIL%s\n", + ctx->test_name, target->name, + cairo_boilerplate_content_name (target->content), dev_offset, dev_scale, similar ? " (similar)" : "", + fail_face, normal_face); + cairo_test_log (ctx, "FAIL\n"); + break; + } + fflush (stdout); + + return status; +} + +const cairo_test_context_t * +cairo_test_get_context (cairo_t *cr) +{ + return cairo_get_user_data (cr, &_cairo_test_context_key); +} + +cairo_t * +cairo_test_create (cairo_surface_t *surface, + const cairo_test_context_t *ctx) +{ + cairo_t *cr = cairo_create (surface); + cairo_set_user_data (cr, &_cairo_test_context_key, + (void*) ctx, NULL); + return cr; +} + +cairo_surface_t * +cairo_test_create_surface_from_png (const cairo_test_context_t *ctx, + const char *filename) +{ + cairo_surface_t *image; + cairo_status_t status; + char *unique_id; + + image = cairo_image_surface_create_from_png (filename); + status = cairo_surface_status (image); + if (status == CAIRO_STATUS_FILE_NOT_FOUND) { + /* expect not found when running with srcdir != builddir + * such as when 'make distcheck' is run + */ + if (ctx->srcdir) { + char *srcdir_filename; + xasprintf (&srcdir_filename, "%s/%s", ctx->srcdir, filename); + cairo_surface_destroy (image); + image = cairo_image_surface_create_from_png (srcdir_filename); + free (srcdir_filename); + } + } + unique_id = strdup(filename); + cairo_surface_set_mime_data (image, CAIRO_MIME_TYPE_UNIQUE_ID, + (unsigned char *)unique_id, strlen(unique_id), + free, unique_id); + + return image; +} + +cairo_pattern_t * +cairo_test_create_pattern_from_png (const cairo_test_context_t *ctx, + const char *filename) +{ + cairo_surface_t *image; + cairo_pattern_t *pattern; + + image = cairo_test_create_surface_from_png (ctx, filename); + + pattern = cairo_pattern_create_for_surface (image); + + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); + + cairo_surface_destroy (image); + + return pattern; +} + +static cairo_surface_t * +_draw_check (int width, int height) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 12, 12); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 0.75, 0.75, 0.75); /* light gray */ + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0.25, 0.25, 0.25); /* dark gray */ + cairo_rectangle (cr, width / 2, 0, width / 2, height / 2); + cairo_rectangle (cr, 0, height / 2, width / 2, height / 2); + cairo_fill (cr); + + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return surface; +} + +void +cairo_test_paint_checkered (cairo_t *cr) +{ + cairo_surface_t *check; + + check = _draw_check (12, 12); + + cairo_save (cr); + cairo_set_source_surface (cr, check, 0, 0); + cairo_surface_destroy (check); + + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT); + cairo_paint (cr); + + cairo_restore (cr); +} + +cairo_bool_t +cairo_test_is_target_enabled (const cairo_test_context_t *ctx, + const char *target) +{ + size_t i; + + for (i = 0; i < ctx->num_targets; i++) { + const cairo_boilerplate_target_t *t = ctx->targets_to_test[i]; + if (strcmp (t->name, target) == 0) { + /* XXX ask the target whether is it possible to run? + * e.g. the xlib backend could check whether it is able to connect + * to the Display. + */ + return t->get_image_surface != NULL; + } + } + + return FALSE; +} + +cairo_bool_t +cairo_test_malloc_failure (const cairo_test_context_t *ctx, + cairo_status_t status) +{ + if (! ctx->malloc_failure) + return FALSE; + + if (status != CAIRO_STATUS_NO_MEMORY) + return FALSE; + +#if HAVE_MEMFAULT + { + int n_faults; + + /* prevent infinite loops... */ + n_faults = MEMFAULT_COUNT_FAULTS (); + if (n_faults == ctx->last_fault_count) + return FALSE; + + ((cairo_test_context_t *) ctx)->last_fault_count = n_faults; + } +#endif + + return TRUE; +} + +cairo_test_status_t +cairo_test_status_from_status (const cairo_test_context_t *ctx, + cairo_status_t status) +{ + if (status == CAIRO_STATUS_SUCCESS) + return CAIRO_TEST_SUCCESS; + + if (cairo_test_malloc_failure (ctx, status)) + return CAIRO_TEST_NO_MEMORY; + + return CAIRO_TEST_FAILURE; +} + +#if CAIRO_HAS_FT_FONT + +#include "cairo-ft.h" + +static void +_free_face (void *face) +{ + FT_Done_Face ((FT_Face) face); +} + +static FT_Library ft_library = NULL; + +#endif + +static const cairo_user_data_key_t ft_font_key; + +cairo_test_status_t +cairo_test_ft_select_font_from_file (cairo_t *cr, + const char *filename) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); +#if CAIRO_HAS_FT_FONT + FT_Face face; + cairo_font_face_t *font_face; + char *srcdir_filename = NULL; + + if (access (filename, F_OK) != 0) { + if (ctx->srcdir) { + xasprintf (&srcdir_filename, "%s/%s", ctx->srcdir, filename); + filename = srcdir_filename; + } + } + + if (access (filename, F_OK) != 0) { + cairo_test_log (ctx, "Could not find font file: %s\n", filename); + return CAIRO_TEST_FAILURE; + } + + if (!ft_library) { + if (FT_Init_FreeType (&ft_library)) + return CAIRO_TEST_FAILURE; + } + + if (FT_New_Face (ft_library, filename, 0, &face)) { + cairo_test_log (ctx, "FT_New_Face failed loading font file: %s\n", filename); + return CAIRO_TEST_FAILURE; + } + + free (srcdir_filename); + font_face = cairo_ft_font_face_create_for_ft_face (face, 0); + if (cairo_font_face_status (font_face)) + return CAIRO_TEST_FAILURE; + + cairo_font_face_set_user_data (font_face, &ft_font_key, face, _free_face); + cairo_set_font_face (cr, font_face); + if (cairo_status (cr)) + return CAIRO_TEST_FAILURE; + + cairo_font_face_destroy (font_face); + + return CAIRO_TEST_SUCCESS; +#else + cairo_test_log (ctx, "cairo_test_ft_select_font_from_file() requires the FreeType backend\n"); + return CAIRO_TEST_FAILURE; +#endif +} diff --git a/local/recipes/libs/cairo/source/test/cairo-test.h b/local/recipes/libs/cairo/source/test/cairo-test.h new file mode 100644 index 0000000000..b706546540 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/cairo-test.h @@ -0,0 +1,333 @@ +/* + * Copyright © 2004 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#ifndef _CAIRO_TEST_H_ +#define _CAIRO_TEST_H_ + +#include "cairo-boilerplate.h" + +#include + +CAIRO_BEGIN_DECLS + +#if HAVE_STDINT_H +# include +#elif HAVE_INTTYPES_H +# include +#elif HAVE_SYS_INT_TYPES_H +# include +#elif defined(_MSC_VER) +typedef __int8 int8_t; +typedef unsigned __int8 uint8_t; +typedef __int16 int16_t; +typedef unsigned __int16 uint16_t; +typedef __int32 int32_t; +typedef unsigned __int32 uint32_t; +typedef __int64 int64_t; +typedef unsigned __int64 uint64_t; +# ifndef HAVE_UINT64_T +# define HAVE_UINT64_T 1 +# endif +#else +#error Cannot find definitions for fixed-width integral types (uint8_t, uint32_t, \etc.) +#endif + +#ifdef _MSC_VER +#define _USE_MATH_DEFINES + +#include +#if _MSC_VER <= 1600 +#define isnan(x) _isnan(x) +#endif + +#endif + +#if HAVE_FENV_H +# include +#endif +/* The following are optional in C99, so define them if they aren't yet */ +#ifndef FE_DIVBYZERO +#define FE_DIVBYZERO 0 +#endif +#ifndef FE_INEXACT +#define FE_INEXACT 0 +#endif +#ifndef FE_INVALID +#define FE_INVALID 0 +#endif +#ifndef FE_OVERFLOW +#define FE_OVERFLOW 0 +#endif +#ifndef FE_UNDERFLOW +#define FE_UNDERFLOW 0 +#endif + +#include + +static inline double +cairo_test_NaN (void) +{ +#ifdef _MSC_VER + /* MSVC strtod("NaN", NULL) returns 0.0 */ + union { + uint32_t i[2]; + double d; + } nan = {{0xffffffff, 0x7fffffff}}; + return nan.d; +#else + return strtod("NaN", NULL); +#endif +} + +#ifndef MIN +#define MIN(a, b) ((a) < (b) ? (a) : (b)) +#endif + +#ifndef MAX +#define MAX(a, b) ((a) > (b) ? (a) : (b)) +#endif + +#define CAIRO_TEST_OUTPUT_DIR "output" + +#define CAIRO_TEST_LOG_SUFFIX ".log" + +#define CAIRO_TEST_FONT_FAMILY "DejaVu" + +/* What is a fail and what isn't? + * When running the test suite we want to detect unexpected output. This + * can be caused by a change we have made to cairo itself, or a change + * in our environment. To capture this we classify the expected output into 3 + * classes: + * + * REF -- Perfect output. + * Might be different for each backend, due to slight implementation + * differences. + * + * NEW -- A new failure. We have uncovered a bug within cairo and have + * recorded the current failure (along with the expected output + * if possible!) so we can detect any changes in our attempt to + * fix the bug. + * + * XFAIL -- An external failure. We believe the cairo output is perfect, + * but an external renderer is causing gross failure. + * (We also use this to capture current WONTFIX issues within cairo, + * such as overflow in internal coordinates, so as not to distract + * us when regression testing.) + * + * If no REF is given for a test, then it is assumed to be XFAIL. + */ +#define CAIRO_TEST_REF_SUFFIX ".ref" +#define CAIRO_TEST_XFAIL_SUFFIX ".xfail" +#define CAIRO_TEST_NEW_SUFFIX ".new" + +#define CAIRO_TEST_OUT_SUFFIX ".out" +#define CAIRO_TEST_DIFF_SUFFIX ".diff" + +#define CAIRO_TEST_PNG_EXTENSION ".png" +#define CAIRO_TEST_OUT_PNG CAIRO_TEST_OUT_SUFFIX CAIRO_TEST_PNG_EXTENSION +#define CAIRO_TEST_REF_PNG CAIRO_TEST_REF_SUFFIX CAIRO_TEST_PNG_EXTENSION +#define CAIRO_TEST_DIFF_PNG CAIRO_TEST_DIFF_SUFFIX CAIRO_TEST_PNG_EXTENSION + +typedef enum cairo_test_status { + CAIRO_TEST_SUCCESS = 0, + CAIRO_TEST_NO_MEMORY, + CAIRO_TEST_FAILURE, + CAIRO_TEST_NEW, + CAIRO_TEST_XFAILURE, + CAIRO_TEST_ERROR, + CAIRO_TEST_CRASHED, + CAIRO_TEST_UNTESTED = 77 /* match automake's skipped exit status */ +} cairo_test_status_t; + +typedef struct _cairo_test_context cairo_test_context_t; +typedef struct _cairo_test cairo_test_t; + +typedef cairo_test_status_t +(cairo_test_preamble_function_t) (cairo_test_context_t *ctx); + +typedef cairo_test_status_t +(cairo_test_draw_function_t) (cairo_t *cr, int width, int height); + +struct _cairo_test { + const char *name; + const char *description; + const char *keywords; + const char *requirements; + double width; + double height; + cairo_test_preamble_function_t *preamble; + cairo_test_draw_function_t *draw; +}; + +/* The standard test interface which works by examining result image. + * + * CAIRO_TEST() constructs a test which will be called once before (the + * preamble callback), and then once for each testable backend (the draw + * callback). The following checks will be performed for each backend: + * + * 1) If preamble() returns CAIRO_TEST_UNTESTED, the test is skipped. + * + * 2) If preamble() does not return CAIRO_TEST_SUCCESS, the test fails. + * + * 3) If draw() does not return CAIRO_TEST_SUCCESS then this backend + * fails. + * + * 4) Otherwise, if cairo_status(cr) indicates an error then this + * backend fails. + * + * 5) Otherwise, if the image size is 0, then this backend passes. + * + * 6) Otherwise, if every channel of every pixel exactly matches the + * reference image then this backend passes. If not, this backend + * fails. + * + * The overall test result is PASS if and only if there is at least + * one backend that is tested and if all tested backend pass according + * to the four criteria above. + */ +#define CAIRO_TEST(name, description, keywords, requirements, width, height, preamble, draw) \ +void _register_##name (void); \ +void _register_##name (void) { \ + static cairo_test_t test = { \ + #name, description, \ + keywords, requirements, \ + width, height, \ + preamble, draw \ + }; \ + cairo_test_register (&test); \ +} + +void +cairo_test_register (cairo_test_t *test); + +/* The full context for the test. + * For ordinary tests (using the CAIRO_TEST()->draw interface) the context + * is passed to the draw routine via user_data on the cairo_t. + * The reason why the context is not passed as an explicit parameter is that + * it is rarely required by the test itself and by removing the parameter + * we can keep the draw routines simple and serve as example code. + * + * In contrast, for the preamble phase the context is passed as the only + * parameter. + */ +struct _cairo_test_context { + const cairo_test_t *test; + const char *test_name; + + FILE *log_file; + const char *output; + const char *srcdir; /* directory containing sources and input data */ + char *refdir; /* directory containing reference images */ + + char *ref_name; /* cache of the current reference image */ + cairo_surface_t *ref_image; + cairo_surface_t *ref_image_flattened; + + size_t num_targets; + cairo_bool_t limited_targets; + const cairo_boilerplate_target_t **targets_to_test; + cairo_bool_t own_targets; + + int malloc_failure; + int last_fault_count; + + int timeout; +}; + +/* Retrieve the test context from the cairo_t, used for logging, paths etc */ +const cairo_test_context_t * +cairo_test_get_context (cairo_t *cr); + + +/* Print a message to the log file, ala printf. */ +void +cairo_test_log (const cairo_test_context_t *ctx, + const char *fmt, ...) CAIRO_BOILERPLATE_PRINTF_FORMAT(2, 3); +void +cairo_test_logv (const cairo_test_context_t *ctx, + const char *fmt, va_list ap) CAIRO_BOILERPLATE_PRINTF_FORMAT(2, 0); + +/* Helper functions that take care of finding source images even when + * building in a non-srcdir manner, (i.e. the tests will be run in a + * directory that is different from the one where the source image + * exists). */ +cairo_surface_t * +cairo_test_create_surface_from_png (const cairo_test_context_t *ctx, + const char *filename); + +cairo_pattern_t * +cairo_test_create_pattern_from_png (const cairo_test_context_t *ctx, + const char *filename); + +void +cairo_test_paint_checkered (cairo_t *cr); + +#define CAIRO_TEST_DOUBLE_EQUALS(a,b) (fabs((a)-(b)) < 0.00001) + +cairo_bool_t +cairo_test_is_target_enabled (const cairo_test_context_t *ctx, + const char *target); + +char * +cairo_test_get_name (const cairo_test_t *test); + +cairo_bool_t +cairo_test_malloc_failure (const cairo_test_context_t *ctx, + cairo_status_t status); + +cairo_test_status_t +cairo_test_status_from_status (const cairo_test_context_t *ctx, + cairo_status_t status); + +char * +cairo_test_reference_filename (const cairo_test_context_t *ctx, + const char *base_name, + const char *test_name, + const char *target_name, + const char *base_target_name, + const char *format, + const char *suffix, + const char *extension); + +cairo_surface_t * +cairo_test_get_reference_image (cairo_test_context_t *ctx, + const char *filename, + cairo_bool_t flatten); + +cairo_bool_t +cairo_test_mkdir (const char *path); + +cairo_t * +cairo_test_create (cairo_surface_t *surface, + const cairo_test_context_t *ctx); + +/* Set font face from a font file in build or src dir, using the FT backend. */ +cairo_test_status_t +cairo_test_ft_select_font_from_file (cairo_t *cr, + const char *filename); + +CAIRO_END_DECLS + +#endif diff --git a/local/recipes/libs/cairo/source/test/caps-joins-alpha.c b/local/recipes/libs/cairo/source/test/caps-joins-alpha.c new file mode 100644 index 0000000000..bbff44e572 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/caps-joins-alpha.c @@ -0,0 +1,89 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 10. +#define SIZE (5 * LINE_WIDTH) +#define PAD (2 * LINE_WIDTH) + +static void +make_path (cairo_t *cr) +{ + cairo_move_to (cr, 0., 0.); + cairo_rel_line_to (cr, 0., SIZE); + cairo_rel_line_to (cr, SIZE, 0.); + cairo_close_path (cr); + + cairo_move_to (cr, 2 * LINE_WIDTH, 0.); + cairo_rel_line_to (cr, 3 * LINE_WIDTH, 0.); + cairo_rel_line_to (cr, 0., 3 * LINE_WIDTH); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* First draw a checkered background */ + cairo_test_paint_checkered (cr); + + /* Then draw the original caps-joins test but with a bit of alphs thrown in. */ + cairo_set_line_width (cr, LINE_WIDTH); + + cairo_set_source_rgba (cr, 1.0, 0.0, 0.0, 0.5); /* 50% red */ + cairo_translate (cr, PAD, PAD); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_stroke (cr); + + cairo_set_source_rgba (cr, 0.0, 1.0, 0.0, 0.5); /* 50% green */ + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_stroke (cr); + + cairo_set_source_rgba (cr, 0.0, 0.0, 1.0, 0.5); /* 50% blue */ + + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (caps_joins_alpha, + "Test caps and joins with some source alpha", + "stroke", /* keywords */ + NULL, /* requirements */ + 3 * (PAD + SIZE) + PAD, + PAD + SIZE + PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/caps-joins-curve.c b/local/recipes/libs/cairo/source/test/caps-joins-curve.c new file mode 100644 index 0000000000..cf197547c2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/caps-joins-curve.c @@ -0,0 +1,111 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 10. +#define SIZE (5 * LINE_WIDTH) +#define PAD (3 * LINE_WIDTH) + +static void +make_path (cairo_t *cr) +{ + cairo_move_to (cr, 0, 0); + cairo_rel_curve_to (cr, + -SIZE/4, SIZE/3, + -SIZE/4, SIZE/3, + 0, SIZE); + cairo_rel_curve_to (cr, + SIZE/3, -SIZE/4, + SIZE/3, -SIZE/4, + SIZE, 0); + cairo_close_path (cr); + + cairo_move_to (cr, 5 * LINE_WIDTH, 3 * LINE_WIDTH); + cairo_rel_curve_to (cr, + 0, -3 * LINE_WIDTH, + 0, -3 * LINE_WIDTH, + -3 * LINE_WIDTH, -3 * LINE_WIDTH); +} + +static void +draw_caps_joins (cairo_t *cr) +{ + cairo_save (cr); + + cairo_translate (cr, PAD, PAD); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_stroke (cr); + + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_stroke (cr); + + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_stroke (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_set_line_width (cr, LINE_WIDTH); + + draw_caps_joins (cr); + + /* and reflect to generate the opposite vertex ordering */ + cairo_translate (cr, 0, height); + cairo_scale (cr, 1, -1); + + draw_caps_joins (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (caps_joins_curve, + "Test caps and joins on curves", + "stroke, cap, join", /* keywords */ + NULL, /* requirements */ + 3 * (PAD + SIZE) + PAD, + 2 * (PAD + SIZE) + PAD, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/caps-joins.c b/local/recipes/libs/cairo/source/test/caps-joins.c new file mode 100644 index 0000000000..de22d03679 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/caps-joins.c @@ -0,0 +1,150 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 10. +#define SIZE (5 * LINE_WIDTH) +#define PAD (2 * LINE_WIDTH) + +static void +make_path (cairo_t *cr) +{ + cairo_move_to (cr, 0., 0.); + cairo_rel_line_to (cr, 0., SIZE); + cairo_rel_line_to (cr, SIZE, 0.); + cairo_close_path (cr); + + cairo_move_to (cr, 5 * LINE_WIDTH, 3 * LINE_WIDTH); + cairo_rel_line_to (cr, 0., -3 * LINE_WIDTH); + cairo_rel_line_to (cr, -3 * LINE_WIDTH, 0.); +} + +static void +draw_caps_joins (cairo_t *cr) +{ + cairo_save (cr); + + cairo_translate (cr, PAD, PAD); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_stroke (cr); + + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_stroke (cr); + + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_stroke (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, float line_width) +{ + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_set_line_width (cr, line_width); + + draw_caps_joins (cr); + + /* and reflect to generate the opposite vertex ordering */ + cairo_translate (cr, 0, 2 * (PAD + SIZE) + PAD); + cairo_scale (cr, 1, -1); + + draw_caps_joins (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_10 (cairo_t *cr, int width, int height) +{ + return draw (cr, LINE_WIDTH); +} + +static cairo_test_status_t +draw_2 (cairo_t *cr, int width, int height) +{ + return draw (cr, 2.0); +} + +static cairo_test_status_t +draw_1 (cairo_t *cr, int width, int height) +{ + return draw (cr, 1.0); +} + +static cairo_test_status_t +draw_05 (cairo_t *cr, int width, int height) +{ + return draw (cr, 0.5); +} + +CAIRO_TEST (caps_joins, + "Test caps and joins", + "stroke", /* keywords */ + NULL, /* requirements */ + 3 * (PAD + SIZE) + PAD, + 2 * (PAD + SIZE) + PAD, + NULL, draw_10) + +CAIRO_TEST (caps_joins_2, + "Test caps and joins with default line width", + "stroke", /* keywords */ + NULL, /* requirements */ + 3 * (PAD + SIZE) + PAD, + 2 * (PAD + SIZE) + PAD, + NULL, draw_2) + +CAIRO_TEST (caps_joins_1, + "Test caps and joins with hairlines", + "stroke", /* keywords */ + NULL, /* requirements */ + 3 * (PAD + SIZE) + PAD, + 2 * (PAD + SIZE) + PAD, + NULL, draw_1) + +CAIRO_TEST (caps_joins_05, + "Test caps and joins with fine lines", + "stroke", /* keywords */ + NULL, /* requirements */ + 3 * (PAD + SIZE) + PAD, + 2 * (PAD + SIZE) + PAD, + NULL, draw_05) diff --git a/local/recipes/libs/cairo/source/test/caps-sub-paths.c b/local/recipes/libs/cairo/source/test/caps-sub-paths.c new file mode 100644 index 0000000000..2310eb7526 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/caps-sub-paths.c @@ -0,0 +1,65 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +/* Test case for bug #4205: + + https://bugs.freedesktop.org/show_bug.cgi?id=4205 +*/ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_set_line_width (cr, 4); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + + cairo_move_to (cr, 4, 4); + cairo_line_to (cr, 4, 16); + + cairo_move_to (cr, 10, 4); + cairo_line_to (cr, 10, 16); + + cairo_move_to (cr, 16, 4); + cairo_line_to (cr, 16, 16); + + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (caps_sub_paths, + "Test that sub-paths receive caps.", + "stroke", /* keywords */ + NULL, /* requirements */ + 20, 20, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/caps-tails-curve.c b/local/recipes/libs/cairo/source/test/caps-tails-curve.c new file mode 100644 index 0000000000..fa6aded3d9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/caps-tails-curve.c @@ -0,0 +1,127 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 30. +#define SIZE (2 * LINE_WIDTH) +#define PAD (2 * LINE_WIDTH) + +static void +make_path (cairo_t *cr, double theta) +{ + double line_width = cairo_get_line_width (cr) / 4; + + cairo_move_to (cr, 0, 0); + cairo_rel_curve_to (cr, + SIZE/3, -SIZE/4, + SIZE/3, -SIZE/4, + SIZE, 0); + + cairo_rel_line_to (cr, + cos (theta) * line_width, + sin (theta) * line_width); +} + +static void +draw_joins (cairo_t *cr, double theta) +{ + make_path (cr, theta); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_stroke (cr); + + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr, theta); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_stroke (cr); + + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr, theta); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_stroke (cr); + + cairo_translate (cr, SIZE + PAD, 0.); +} + +static void +draw_caps_joins (cairo_t *cr, double theta) +{ + cairo_translate (cr, PAD, 0); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + draw_joins (cr, theta); + + cairo_translate (cr, PAD, 0); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + draw_joins (cr, theta); + + cairo_translate (cr, PAD, 0); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + draw_joins (cr, theta); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const double theta[] = { + -M_PI/2, -M_PI/4, 0, M_PI/8, M_PI/3, M_PI + }; + unsigned int t; + + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_set_line_width (cr, LINE_WIDTH); + + for (t = 0; t < ARRAY_LENGTH(theta); t++) { + cairo_save (cr); + cairo_translate (cr, 0, t * (SIZE + PAD) + PAD); + draw_caps_joins (cr, theta[t]); + cairo_restore (cr); + + cairo_save (cr); + /* and reflect to generate the opposite vertex ordering */ + cairo_translate (cr, 0, height - t * (SIZE + PAD) - PAD); + cairo_scale (cr, 1, -1); + draw_caps_joins (cr, theta[t]); + cairo_restore (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (caps_tails_curve, + "Test caps and joins on short tail segments", + "stroke, cap, join", /* keywords */ + NULL, /* requirements */ + 9 * (PAD + SIZE) + 4*PAD, + 12 * (PAD + SIZE) + PAD, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/caps.c b/local/recipes/libs/cairo/source/test/caps.c new file mode 100644 index 0000000000..87f008a7c8 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/caps.c @@ -0,0 +1,138 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 10. +#define SIZE (5 * LINE_WIDTH) +#define PAD (2 * LINE_WIDTH) + +static void +make_path (cairo_t *cr) +{ + int i; + + cairo_save (cr); + for (i = 0; i <= 3; i++) { + cairo_new_sub_path (cr); + cairo_move_to (cr, -SIZE / 2, 0.); + cairo_line_to (cr, SIZE / 2, 0.); + cairo_rotate (cr, M_PI / 4.); + } + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr) +{ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_translate (cr, PAD + SIZE / 2., PAD + SIZE / 2.); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + make_path (cr); + cairo_stroke (cr); + + cairo_translate (cr, 0, SIZE + PAD); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + make_path (cr); + cairo_stroke (cr); + + cairo_translate (cr, 0, SIZE + PAD); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + make_path (cr); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_10 (cairo_t *cr, int width, int height) +{ + cairo_set_line_width (cr, LINE_WIDTH); + return draw (cr); +} + +static cairo_test_status_t +draw_2 (cairo_t *cr, int width, int height) +{ + cairo_set_line_width (cr, 2); + return draw (cr); +} + +static cairo_test_status_t +draw_1 (cairo_t *cr, int width, int height) +{ + cairo_set_line_width (cr, 1); + return draw (cr); +} + +static cairo_test_status_t +draw_05 (cairo_t *cr, int width, int height) +{ + cairo_set_line_width (cr, 0.5); + return draw (cr); +} + +CAIRO_TEST (caps, + "Test caps", + "stroke, caps", /* keywords */ + NULL, /* requirements */ + PAD + SIZE + PAD, + 3 * (PAD + SIZE) + PAD, + NULL, draw_10) + +CAIRO_TEST (caps_2, + "Test normal caps", + "stroke, caps", /* keywords */ + NULL, /* requirements */ + PAD + SIZE + PAD, + 3 * (PAD + SIZE) + PAD, + NULL, draw_2) + +CAIRO_TEST (caps_1, + "Test hairline caps", + "stroke, caps", /* keywords */ + NULL, /* requirements */ + PAD + SIZE + PAD, + 3 * (PAD + SIZE) + PAD, + NULL, draw_1) + +CAIRO_TEST (caps_05, + "Test fine caps", + "stroke, caps", /* keywords */ + NULL, /* requirements */ + PAD + SIZE + PAD, + 3 * (PAD + SIZE) + PAD, + NULL, draw_05) + diff --git a/local/recipes/libs/cairo/source/test/ccitt.g3 b/local/recipes/libs/cairo/source/test/ccitt.g3 new file mode 100644 index 0000000000..b5ef99e3dd --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ccitt.g3 @@ -0,0 +1,2 @@ +ÿþFÙÞ#Z#™¡ôІ½©à¡è(¨Ô³ ¼b#£†GGâ:#³hÒœ‹ºœ3‹Bд#B.‚éºù1Äã¦PåÑ1ʉé¢": *ÂôÕˆ½Vš¼x»ë6o¯žþ‡^¾Ö¿è›þN—ZÑ7 D{ÿ_ÓJ÷×d{ÿkkf+ L —j•ÿØØØc_þÌöPæ(p¨2‡({(sÌõxˆˆˆˆ¨‹ˆˆˆˆÎЂB}(} +ˆ«(pDu(pQÿÿ \ No newline at end of file diff --git a/local/recipes/libs/cairo/source/test/check-pdf-structure.sh b/local/recipes/libs/cairo/source/test/check-pdf-structure.sh new file mode 100755 index 0000000000..31ae5ac2c2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/check-pdf-structure.sh @@ -0,0 +1,21 @@ +#!/bin/sh + +if test $# -ne 4 ; then + echo "Usage: $0 " + exit 3 +fi + +# Check for pdfinfo version >= 21.10.00 +if pdfinfo -v 2>& 1 | awk '/pdfinfo version/ { split($3,v,/[.]/); if (v[1] > 21 || (v[1] == 21 && v[2] >= 10) ) { print "yes" } } ' | grep -q 'yes'; then + pdfinfo -struct-text "$1" > "$2" + if test -f "$3" ; then + diff -u "$3" "$2" > "$4" + # diff exit codes: 0 = match, 1 = different, 2 = error + exit $? + else + exit 3 # missing ref file + fi +fi + + # pdfinfo missing or wrong version +exit 4 diff --git a/local/recipes/libs/cairo/source/test/check-refs.sh b/local/recipes/libs/cairo/source/test/check-refs.sh new file mode 100755 index 0000000000..e2e8a1a2ae --- /dev/null +++ b/local/recipes/libs/cairo/source/test/check-refs.sh @@ -0,0 +1,69 @@ +#!/bin/bash + +cd $(dirname $0)/reference || exit + +pdiff=$1 +[ -n "$pdiff" ] || pdiff=../pdiff/perceptualdiff +if [ ! -e "${pdiff}" ]; then + echo "Error: requires pdiff executable" + exit 128 +fi + +exit_code=0 + +for file in *.ref.png; do + test=$(echo $file | cut -d'.' -f1) + target=$(echo $file | cut -d'.' -f2) + format=$(echo $file | cut -d'.' -f3) + notes="" + ref="" + result="" + + if [ $target = 'base' ]; then + # Ignore the base images for this script's purposes + continue + elif [ $target = 'ref' ]; then + # This is actually the baseline reference image + continue + elif [ $format = 'ref' ]; then + # This is either a format-specific reference, or a target-specific/format-generic image + # In either case, compare it against the generic reference image + ref="$test.ref.png" + else + # Prefer the target-specific/format-generic reference image, if available + ref="$test.$target.ref.png" + if [ ! -e $ref ]; then + ref="$test.$format.ref.png" + fi + fi + + # Special cases + if [ $test = "create-from-png" ]; then + # The create-from-png test utilizes multiple reference images directly + continue + elif [ $test = "fallback-resolution" ]; then + # The fallback-resolution test generates a set of reference images; + # These won't be redundant with one another, but just ignore them all. + continue + fi + + if [ -e $ref ]; then + if cmp --silent "$ref" "$file" ; then + printf "redundant: %s and %s are byte-by-byte identical files\n" $file $ref + exit_code=1 + else + # Run perceptualdiff with minimum threshold + pdiff_output=$($pdiff $ref $file -threshold 1) + result=${pdiff_output%:*} + notes=$(echo "${pdiff_output#*: }" | tail -n 1) + if [ "$result" = "PASS" ] && [ "$notes" = "Images are binary identical" ]; then + printf "redundant: %s and %s are pixel equivalent images\n" $file $ref + exit_code=1 + notes="" + fi + fi + fi + +done + +exit $exit_code diff --git a/local/recipes/libs/cairo/source/test/checkerboard.c b/local/recipes/libs/cairo/source/test/checkerboard.c new file mode 100644 index 0000000000..aeb2efe14b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/checkerboard.c @@ -0,0 +1,48 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +/* Test the basic background used extensively in the test suite. */ + +#include "cairo-test.h" + +#define HEIGHT 32 +#define WIDTH 32 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_test_paint_checkered (cr); + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (checkerboard, + "Tests the checkerboard background", + "paint", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/clear-source.c b/local/recipes/libs/cairo/source/test/clear-source.c new file mode 100644 index 0000000000..5410932fcd --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clear-source.c @@ -0,0 +1,169 @@ +/* + * Copyright 2009 Benjamin Otte + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + */ + +#include "cairo-test.h" + +typedef enum { + CLEAR, + CLEARED, + PAINTED +} surface_type_t; + +#define SIZE 10 +#define SPACE 5 + +static cairo_surface_t * +create_surface (cairo_t *target, cairo_content_t content, surface_type_t type) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_surface_create_similar (cairo_get_target (target), + content, + SIZE, SIZE); + + if (type == CLEAR) + return surface; + + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 0.75, 0, 0); + cairo_paint (cr); + + if (type == PAINTED) + goto DONE; + + cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr); + +DONE: + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return surface; +} + +static void +paint (cairo_t *cr, cairo_surface_t *surface) +{ + cairo_set_source_surface (cr, surface, 0, 0); + cairo_paint (cr); +} + +static void +fill (cairo_t *cr, cairo_surface_t *surface) +{ + cairo_set_source_surface (cr, surface, 0, 0); + cairo_rectangle (cr, -SPACE, -SPACE, SIZE + 2 * SPACE, SIZE + 2 * SPACE); + cairo_fill (cr); +} + +static void +stroke (cairo_t *cr, cairo_surface_t *surface) +{ + cairo_set_source_surface (cr, surface, 0, 0); + cairo_set_line_width (cr, 2.0); + cairo_rectangle (cr, 1, 1, SIZE - 2, SIZE - 2); + cairo_stroke (cr); +} + +static void +mask (cairo_t *cr, cairo_surface_t *surface) +{ + cairo_set_source_rgb (cr, 0, 0, 0.75); + cairo_mask_surface (cr, surface, 0, 0); +} + +static void +mask_self (cairo_t *cr, cairo_surface_t *surface) +{ + cairo_set_source_surface (cr, surface, 0, 0); + cairo_mask_surface (cr, surface, 0, 0); +} + +static void +glyphs (cairo_t *cr, cairo_surface_t *surface) +{ + cairo_set_source_surface (cr, surface, 0, 0); + cairo_select_font_face (cr, + "@cairo:", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, 16); + cairo_translate (cr, 0, SIZE); + cairo_show_text (cr, "C"); +} + +typedef void (* operation_t) (cairo_t *cr, cairo_surface_t *surface); +static operation_t operations[] = { + paint, + fill, + stroke, + mask, + mask_self, + glyphs +}; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_content_t contents[] = { CAIRO_CONTENT_COLOR_ALPHA, CAIRO_CONTENT_COLOR, CAIRO_CONTENT_ALPHA }; + unsigned int content, type, ops; + + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_paint (cr); + cairo_translate (cr, SPACE, SPACE); + + for (type = 0; type <= PAINTED; type++) { + for (content = 0; content < ARRAY_LENGTH (contents); content++) { + cairo_surface_t *surface; + + surface = create_surface (cr, contents[content], type); + + cairo_save (cr); + for (ops = 0; ops < ARRAY_LENGTH (operations); ops++) { + cairo_save (cr); + operations[ops] (cr, surface); + cairo_restore (cr); + cairo_translate (cr, 0, SIZE + SPACE); + } + cairo_restore (cr); + cairo_translate (cr, SIZE + SPACE, 0); + + cairo_surface_destroy (surface); + } + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clear_source, + "Check painting with cleared surfaces works as expected", + NULL, /* keywords */ + NULL, /* requirements */ + (SIZE + SPACE) * 9 + SPACE, ARRAY_LENGTH (operations) * (SIZE + SPACE) + SPACE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clear.c b/local/recipes/libs/cairo/source/test/clear.c new file mode 100644 index 0000000000..696993d3f7 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clear.c @@ -0,0 +1,86 @@ +/* + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_text_extents_t extents; + + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR); + + cairo_translate (cr, 2, 2); + cairo_save (cr); + cairo_rectangle (cr, 0, 0, 20, 20); + cairo_clip (cr); + cairo_rectangle (cr, 5, 5, 10, 10); + cairo_fill (cr); + cairo_restore (cr); + + cairo_translate (cr, 20, 0); + cairo_save (cr); + cairo_rectangle (cr, 0, 0, 20, 20); + cairo_clip (cr); + cairo_arc (cr, 10, 10, 8, 0, 2*M_PI); + cairo_fill (cr); + cairo_restore (cr); + + cairo_translate (cr, 0, 20); + cairo_save (cr); + cairo_rectangle (cr, 0, 0, 20, 20); + cairo_clip (cr); + cairo_text_extents (cr, "Cairo", &extents); + cairo_move_to (cr, + 10 - (extents.width/2. + extents.x_bearing), + 10 - (extents.height/2. + extents.y_bearing)); + cairo_text_path (cr, "Cairo"); + cairo_fill (cr); + cairo_restore (cr); + + cairo_translate (cr, -20, 0); + cairo_save (cr); + cairo_rectangle (cr, 0, 0, 20, 20); + cairo_clip (cr); + cairo_move_to (cr, 10, 2); + cairo_line_to (cr, 18, 18); + cairo_line_to (cr, 2, 18); + cairo_close_path (cr); + cairo_fill (cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clear, + "Test masked clears", + "paint, clear", /* keywords */ + NULL, /* requirements */ + 44, 44, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/clip-all.c b/local/recipes/libs/cairo/source/test/clip-all.c new file mode 100644 index 0000000000..dc216c9cb8 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-all.c @@ -0,0 +1,75 @@ +/* + * Copyright © 2005 Novell, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Novell, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Novell, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * NOVELL, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL NOVELL, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Radek Doulík + */ + +#include "cairo-test.h" + +#define SIZE 10 +#define CLIP_SIZE 2 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_fill (cr); + + cairo_reset_clip (cr); + cairo_rectangle (cr, CLIP_SIZE, CLIP_SIZE, CLIP_SIZE, CLIP_SIZE); + cairo_clip (cr); + cairo_rectangle (cr, 3*CLIP_SIZE, 3*CLIP_SIZE, CLIP_SIZE, CLIP_SIZE); + cairo_clip (cr); + + cairo_translate (cr, .5, .5); + + cairo_reset_clip (cr); + cairo_rectangle (cr, CLIP_SIZE, CLIP_SIZE, CLIP_SIZE, CLIP_SIZE); + cairo_clip (cr); + cairo_rectangle (cr, 3*CLIP_SIZE, 3*CLIP_SIZE, CLIP_SIZE, CLIP_SIZE); + cairo_clip (cr); + + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_set_source_rgb (cr, 1, 1, 0); + cairo_fill (cr); + + /* https://bugs.freedesktop.org/show_bug.cgi?id=13084 */ + cairo_select_font_face (cr, + CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + cairo_move_to (cr, 0., SIZE); + cairo_show_text (cr, "cairo"); + + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_all, + "Test clipping with everything clipped out", + "clip", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/clip-complex-bug61592.c b/local/recipes/libs/cairo/source/test/clip-complex-bug61592.c new file mode 100644 index 0000000000..46f8fb8dac --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-complex-bug61592.c @@ -0,0 +1,60 @@ +/* + * Copyright © 2013 Uli Schlachter + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Uli Schlachter + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE); + cairo_move_to(cr, 85, -465); + cairo_line_to(cr, 3, 4.1); + cairo_line_to(cr, -145, -25); + cairo_close_path(cr); + cairo_clip(cr); + + cairo_set_antialias(cr, CAIRO_ANTIALIAS_DEFAULT); + cairo_move_to(cr, -139, -524); + cairo_line_to(cr, 78, 44); + cairo_line_to(cr, -229, -10); + cairo_close_path(cr); + cairo_clip(cr); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_complex_bug61592, + "Exercise a bug found in 1.12", + "clip", /* keywords */ + NULL, /* requirements */ + 8, 5, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-complex-shape.c b/local/recipes/libs/cairo/source/test/clip-complex-shape.c new file mode 100644 index 0000000000..d7d530146e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-complex-shape.c @@ -0,0 +1,114 @@ +/* + * Copyright 2011 SCore Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Taekyun Kim + */ + +#include "cairo-test.h" + +static void +rounded_rectangle(cairo_t *cr, + double x, double y, + double width, double height, + double radius) +{ + cairo_move_to (cr, x, y + radius); + cairo_line_to (cr, x, y + height - radius); + cairo_curve_to (cr, x, y + height - radius/2.0, + x + radius/2.0, y + height, + x + radius, y + height); + cairo_line_to (cr, x + width - radius, y + height); + cairo_curve_to (cr, x + width - radius/2.0, y + height, + x + width, y + height - radius/2.0, + x + width, y + height - radius); + cairo_line_to (cr, x + width, y + radius); + cairo_curve_to (cr, x + width, y + radius/2.0, + x + width - radius/2.0, y, + x + width - radius, y); + cairo_line_to (cr, x + radius, y); + cairo_curve_to (cr, x + radius/2.0, y, x, y + radius/2.0, x, y + radius); + cairo_close_path(cr); +} + +static void +background (cairo_t *cr) +{ + cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0); + cairo_paint(cr); +} + +static void +foreground (cairo_t *cr) +{ + cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 1.0); + cairo_set_operator(cr, CAIRO_OPERATOR_OVER); + cairo_rectangle(cr, 20, 20, 60, 60); + cairo_fill(cr); +} + +static cairo_test_status_t +clip_eo_mono (cairo_t *cr, int width, int height) +{ + + background (cr); + + cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE); + cairo_set_fill_rule(cr, CAIRO_FILL_RULE_EVEN_ODD); + rounded_rectangle(cr, 0, 0, 40, 100, 10); + rounded_rectangle(cr, 60, 0, 40, 100, 10); + cairo_clip(cr); + + foreground (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +clip_eo_aa (cairo_t *cr, int width, int height) +{ + background (cr); + + cairo_set_antialias(cr, CAIRO_ANTIALIAS_DEFAULT); + cairo_set_fill_rule(cr, CAIRO_FILL_RULE_EVEN_ODD); + rounded_rectangle(cr, 0, 0, 40, 100, 10); + rounded_rectangle(cr, 60, 0, 40, 100, 10); + cairo_clip(cr); + + foreground (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_complex_shape_eo_mono, + "Test clipping against a complex shape", + "clip", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, clip_eo_mono) +CAIRO_TEST (clip_complex_shape_eo_aa, + "Test clipping against a complex shape", + "clip", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, clip_eo_aa) diff --git a/local/recipes/libs/cairo/source/test/clip-contexts.c b/local/recipes/libs/cairo/source/test/clip-contexts.c new file mode 100644 index 0000000000..39d2004c01 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-contexts.c @@ -0,0 +1,75 @@ +/* + * Copyright © 2010 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Intel Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Intel Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * INTEL CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL INTEL CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* + * Jeff Muizelaar found a bug on Quartz with cairo-surface-clipper, which was + * the topmost clip path from two different contexts and finding them equally + * incorrectly concluding that the operation was a no-op. + */ + +#define SIZE 10 +#define CLIP_SIZE 2 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_t *cr2; + + /* opaque background */ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + /* first create an empty, non-overlappiny clip */ + cr2 = cairo_create (cairo_get_target (cr)); + cairo_rectangle (cr2, 0, 0, SIZE/2-2, SIZE/2-2); + cairo_clip (cr2); + + cairo_rectangle (cr2, SIZE/2+2, SIZE/2+2, SIZE/2-2, SIZE/2-2); + cairo_clip (cr2); + + /* and apply the clip onto the surface, empty nothing should be painted */ + cairo_set_source_rgba (cr2, 1, 0, 0, .5); + cairo_paint (cr2); + + /* switch back to the original, and set only the last clip */ + cairo_rectangle (cr, SIZE/2+2, SIZE/2+2, SIZE/2-2, SIZE/2-2); + cairo_clip (cr); + + cairo_set_source_rgba (cr, 0, 0, 1, .5); + cairo_paint (cr); + + cairo_destroy (cr2); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_contexts, + "Test clipping with 2 separate contexts", + "clip", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-device-offset.c b/local/recipes/libs/cairo/source/test/clip-device-offset.c new file mode 100644 index 0000000000..f725b8e93a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-device-offset.c @@ -0,0 +1,79 @@ +/* + * Copyright © 2009 Benjamin Otte + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Benjamin Otte + */ + +#include "cairo-test.h" + +#define WIDTH 50 +#define HEIGHT 50 + +static cairo_pattern_t * +create_green_source (void) +{ + cairo_surface_t *image; + cairo_pattern_t *pattern; + cairo_t *cr; + + image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, WIDTH, HEIGHT); + cr = cairo_create (image); + cairo_surface_destroy (image); + + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_paint (cr); + + pattern = cairo_pattern_create_for_surface (cairo_get_target (cr)); + cairo_destroy (cr); + + return pattern; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *source; + double old_x, old_y; + + cairo_surface_get_device_offset (cairo_get_group_target (cr), &old_x, &old_y); + cairo_surface_set_device_offset (cairo_get_group_target (cr), old_x+5, old_y+5); + + source = create_green_source (); + cairo_set_source (cr, source); + cairo_pattern_destroy (source); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + cairo_paint (cr); + + cairo_surface_set_device_offset (cairo_get_group_target (cr), old_x, old_y); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_device_offset, + "Test clipping on surfaces with device offsets", + "clip", /* keywords */ + NULL, /* requirements */ + WIDTH+10, HEIGHT+10, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-disjoint-hatching.c b/local/recipes/libs/cairo/source/test/clip-disjoint-hatching.c new file mode 100644 index 0000000000..8626e80df7 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-disjoint-hatching.c @@ -0,0 +1,104 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define STEP 5 +#define WIDTH 100 +#define HEIGHT 100 + +static void hatching (cairo_t *cr) +{ + int i; + + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + + cairo_translate (cr, WIDTH/2, HEIGHT/2); + cairo_rotate (cr, M_PI/4); + cairo_translate (cr, -WIDTH/2, -HEIGHT/2); + + for (i = 0; i < WIDTH; i += STEP) { + cairo_rectangle (cr, i, -2, 1, HEIGHT+4); + cairo_rectangle (cr, -2, i, WIDTH+4, 1); + } +} + +static void background (cairo_t *cr) +{ + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); +} + +static void clip_to_grid (cairo_t *cr) +{ + int i, j; + + for (j = 0; j < HEIGHT; j += 2*STEP) { + for (i = 0; i < WIDTH; i += 2*STEP) + cairo_rectangle (cr, i, j, STEP, STEP); + + j += 2*STEP; + for (i = 0; i < WIDTH; i += 2*STEP) + cairo_rectangle (cr, i+STEP/2, j, STEP, STEP); + } + + cairo_clip (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + background (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + + cairo_save (cr); { + clip_to_grid (cr); + hatching (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill (cr); + } cairo_restore (cr); + + cairo_translate (cr, 0.25, HEIGHT+.25); + + cairo_save (cr); { + clip_to_grid (cr); + hatching (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_fill (cr); + } cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_disjoint_hatching, + "Test drawing through through an array of clips", + "clip", /* keywords */ + "target=raster", /* requirements */ + WIDTH, 2*HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-disjoint-quad.c b/local/recipes/libs/cairo/source/test/clip-disjoint-quad.c new file mode 100644 index 0000000000..fe20381d77 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-disjoint-quad.c @@ -0,0 +1,83 @@ +/* + * Copyright © 2012 Red Hat, Inc. + * Copyright © 2012 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Soren Sandmann + * Chris Wilson + */ + +#include "cairo-test.h" + +#define WIDTH 100 +#define HEIGHT 200 + +static void +draw_quad (cairo_t *cr, + double x1, double y1, + double x2, double y2, + double x3, double y3, + double x4, double y4) +{ + cairo_move_to (cr, x1, y1); + cairo_line_to (cr, x2, y2); + cairo_line_to (cr, x3, y3); + cairo_line_to (cr, x4, y4); + cairo_close_path (cr); + + cairo_set_source_rgb (cr, 0, 0.6, 0); + cairo_fill (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int position[5] = {0, HEIGHT/2-10, HEIGHT/2-5, HEIGHT/2, HEIGHT-10 }; + int i; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + for (i = 0; i < 5; i++) { + cairo_reset_clip (cr); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_rectangle (cr, 0, 0, WIDTH/2, HEIGHT/2); + cairo_rectangle (cr, WIDTH/2, position[i], WIDTH/2, 10); + cairo_fill_preserve (cr); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 1, 0, 1); + draw_quad (cr, 50, 50, 75, 75, 50, 150, 25, 75); + cairo_fill (cr); + + cairo_translate(cr, WIDTH, 0); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_disjoint_quad, + "Tests a simple fill through two disjoint clips.", + "clip, fill", /* keywords */ + NULL, /* requirements */ + 5*WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-disjoint.c b/local/recipes/libs/cairo/source/test/clip-disjoint.c new file mode 100644 index 0000000000..28bb963c24 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-disjoint.c @@ -0,0 +1,90 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Soren Sandmann + */ + +#include "cairo-test.h" + +#define WIDTH 300 +#define HEIGHT 300 + +typedef struct { + double x, y; +} point_t; + +static void +paint_curve (cairo_t *cr) +{ + const point_t points[] = { + { 100, 320 }, { 110, -80 }, + { 180, 60 }, { 300, 170 }, + { 300, -40 } + }; + unsigned i; + + cairo_set_line_width (cr, 2); + cairo_move_to (cr, points[0].x, points[0].y); + + for (i = 1; i < ARRAY_LENGTH (points) - 2; i += 3) { + cairo_curve_to (cr, + points[i].x, points[i].y, + points[i + 1].x, points[i + 1].y, + points[i + 2].x, points[i + 2].y); + } + cairo_set_line_width (cr, 5); + cairo_stroke (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* Fill window with light blue */ + cairo_set_source_rgba (cr, 0.8, 0.8, 1.9, 1.0); + cairo_paint (cr); + + /* Paint curve in green */ + cairo_set_source_rgba (cr, 0.6, 0.8, 0.6, 1.0); + paint_curve (cr); + + /* Make clip region */ + cairo_rectangle (cr, 228, 131, 50, 13); + cairo_rectangle (cr, 20, 99, 200, 75); + cairo_clip_preserve (cr); + + /* Fill clip region with red */ + cairo_set_source_rgba (cr, 1.0, 0.5, 0.5, 0.8); + cairo_fill (cr); + + /* Paint curve again, this time in blue */ + cairo_set_source_rgba (cr, 0, 0, 1.0, 1.0); + paint_curve (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_disjoint, + "Tests stroking through two disjoint clips.", + "clip, stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-double-free.c b/local/recipes/libs/cairo/source/test/clip-double-free.c new file mode 100644 index 0000000000..74b9a6e6db --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-double-free.c @@ -0,0 +1,87 @@ +/* + * Copyright © 2011 Uli Schlachter + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Uli Schlachter + */ + +/* + * This test wants to hit the following double free: + * + * ==10517== Invalid free() / delete / delete[] + * ==10517== at 0x4C268FE: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) + * ==10517== by 0x87FBE80: _cairo_clip_destroy (cairo-clip.c:136) + * ==10517== by 0x87FE520: _cairo_clip_intersect_boxes.part.1 (cairo-clip-private.h:92) + * ==10517== by 0x87FE79F: _cairo_clip_intersect_rectilinear_path (cairo-clip-boxes.c:266) + * ==10517== by 0x87FC29B: _cairo_clip_intersect_path.part.3 (cairo-clip.c:242) + * ==10517== by 0x8809C3A: _cairo_gstate_clip (cairo-gstate.c:1518) + * ==10517== by 0x8802E40: _cairo_default_context_clip (cairo-default-context.c:1048) + * ==10517== by 0x87FA2C6: cairo_clip (cairo.c:2380) + * ==10517== Address 0x18d44cb0 is 0 bytes inside a block of size 32 free'd + * ==10517== at 0x4C268FE: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) + * ==10517== by 0x87FE506: _cairo_clip_intersect_boxes.part.1 (cairo-clip-boxes.c:295) + * ==10517== by 0x87FE79F: _cairo_clip_intersect_rectilinear_path (cairo-clip-boxes.c:266) + * ==10517== by 0x87FC29B: _cairo_clip_intersect_path.part.3 (cairo-clip.c:242) + * ==10517== by 0x8809C3A: _cairo_gstate_clip (cairo-gstate.c:1518) + * ==10517== by 0x8802E40: _cairo_default_context_clip (cairo-default-context.c:1048) + * ==10517== by 0x87FA2C6: cairo_clip (cairo.c:2380) + * + * _cairo_clip_intersect_boxes() is called with clip->num_boxes != 0. It then + * calls _cairo_boxes_init_for_array (&clip_boxes, clip->boxes, clip->num_boxes) + * and free (clip->boxes), stealing the clip's boxes, but leaving a dangling + * pointer behind. + * Because this code already intersected the existing boxes and the new ones, we + * now have num_boxes == 0. This means that _cairo_clip_set_all_clipped() gets + * called and tries to free the clip's boxes again. + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + + /* To hit this bug, we first need a clip with + * clip->boxes != clip->embedded_boxes. + */ + cairo_rectangle (cr, 0, 0, 2, 2); + cairo_rectangle (cr, 0, 0, 1, 1); + cairo_clip (cr); + + /* Then we have to intersect this with a rectilinear path which results in + * all clipped. This path must consist of at least two boxes or we will hit + * a different code path. + */ + cairo_rectangle (cr, 10, 10, 2, 2); + cairo_rectangle (cr, 10, 10, 1, 1); + cairo_clip (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_double_free, + "Test a double free bug in the clipping code", + "clip", /* keywords */ + NULL, /* requirements */ + 0, 0, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-draw-unbounded.c b/local/recipes/libs/cairo/source/test/clip-draw-unbounded.c new file mode 100644 index 0000000000..6b9263bebe --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-draw-unbounded.c @@ -0,0 +1,184 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2009 Chris Wilson + * Copyright 2010 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define WIDTH 60 +#define HEIGHT 60 + +static void +stroke (cairo_t *cr) +{ + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_IN); + cairo_set_source_rgb (cr, 0, 0.7, 0); + cairo_arc (cr, 10, 10, 7.5, 0, 2 * M_PI); + cairo_move_to (cr, 0, 20); + cairo_line_to (cr, 20, 0); + cairo_stroke (cr); +} + +static void +fill (cairo_t *cr) +{ + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_IN); + cairo_set_source_rgb (cr, 0, 0.7, 0); + cairo_new_sub_path (cr); + cairo_arc (cr, 10, 10, 8.5, 0, 2 * M_PI); + cairo_new_sub_path (cr); + cairo_arc_negative (cr, 10, 10, 6.5, 2 * M_PI, 0); + + cairo_move_to (cr, -1, 19); + cairo_line_to (cr, 1, 21); + cairo_line_to (cr, 21, 1); + cairo_line_to (cr, 19, -1); + cairo_line_to (cr, -1, 19); + + cairo_fill (cr); +} + +static void +clip_simple (cairo_t *cr) +{ + cairo_rectangle (cr, 0, 0, 20, 20); + cairo_clip (cr); +} + +static void +clip_unaligned (cairo_t *cr) +{ + cairo_rectangle (cr, 0.5, 0.5, 20, 20); + cairo_clip (cr); +} + +static void +clip_aligned (cairo_t *cr) +{ + cairo_fill_rule_t orig_rule; + + orig_rule = cairo_get_fill_rule (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_rectangle (cr, 0, 0, 20, 20); + cairo_rectangle (cr, 3, 3, 10, 10); + cairo_rectangle (cr, 7, 7, 10, 10); + cairo_clip (cr); + cairo_set_fill_rule (cr, orig_rule); +} + +static void +clip_mask (cairo_t *cr) +{ + cairo_arc (cr, 10, 10, 10, 0, 2 * M_PI); + cairo_new_sub_path (cr); + cairo_arc_negative (cr, 10, 10, 5, 2 * M_PI, 0); + cairo_new_sub_path (cr); + cairo_arc (cr, 10, 10, 2, 0, 2 * M_PI); + cairo_clip (cr); +} + +static void (* const clip_funcs[])(cairo_t *cr) = { + clip_simple, + clip_unaligned, + clip_aligned, + clip_mask +}; + +static double translations[][2] = { + { 10, 10 }, + { WIDTH, 0 }, + { -WIDTH, HEIGHT }, + { WIDTH, 0 } +}; + +static cairo_test_status_t +draw (cairo_t *cr, void (*shapes)(cairo_t *)) +{ + unsigned int i; + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + for (i = 0; i < ARRAY_LENGTH (clip_funcs); i++) { + cairo_translate (cr, translations[i][0], translations[i][1]); + + cairo_save (cr); + cairo_scale (cr, 2, 2); + clip_funcs[i] (cr); + shapes (cr); + cairo_restore (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_stroke (cairo_t *cr, int width, int height) +{ + return draw (cr, stroke); +} + +static cairo_test_status_t +draw_fill_nz (cairo_t *cr, int width, int height) +{ + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING); + return draw (cr, fill); +} + +static cairo_test_status_t +draw_fill_eo (cairo_t *cr, int width, int height) +{ + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + return draw (cr, fill); +} + +CAIRO_TEST (clip_stroke_unbounded, + "Tests unbounded stroke through complex clips.", + "clip, stroke, unbounded", /* keywords */ + NULL, /* requirements */ + 2 * WIDTH, 2 * HEIGHT, + NULL, draw_stroke) + +CAIRO_TEST (clip_fill_nz_unbounded, + "Tests unbounded fill through complex clips (with winding fill rule).", + "clip, fill, unbounded", /* keywords */ + NULL, /* requirements */ + 2 * WIDTH, 2 * HEIGHT, + NULL, draw_fill_nz) + +CAIRO_TEST (clip_fill_eo_unbounded, + "Tests unbounded fill through complex clips (with even-odd fill rule).", + "clip, fill, unbounded", /* keywords */ + NULL, /* requirements */ + 2 * WIDTH, 2 * HEIGHT, + NULL, draw_fill_eo) diff --git a/local/recipes/libs/cairo/source/test/clip-empty-group.c b/local/recipes/libs/cairo/source/test/clip-empty-group.c new file mode 100644 index 0000000000..3829c88584 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-empty-group.c @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* Test the handling of cairo_push_group() with everything clipped. */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_paint (cr); /* opaque background */ + + cairo_rectangle (cr, 20, 20, 0, 0); + cairo_clip (cr); + + cairo_push_group (cr); /* => 0x0 group */ + cairo_reset_clip (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + cairo_rectangle (cr, 0, 0, width, height); + cairo_set_source_rgba (cr, 0, 1, 0, .5); + cairo_fill (cr); + + cairo_move_to (cr, 0, 20); + cairo_line_to (cr, width, 20); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_stroke (cr); + + cairo_pop_group_to_source (cr); + cairo_reset_clip (cr); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_empty_group, + "Test handling of groups with everything clipped", + "clip, group", /* keywords */ + NULL, /* requirements */ + 40, 40, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-empty-save.c b/local/recipes/libs/cairo/source/test/clip-empty-save.c new file mode 100644 index 0000000000..35de3cb948 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-empty-save.c @@ -0,0 +1,68 @@ +/* + * Copyright © 2007 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 10 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + cairo_reset_clip (cr); + cairo_clip (cr); + + cairo_save (cr); + + cairo_translate (cr, .5, .5); + + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_fill_preserve (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_stroke (cr); + + /* https://bugs.freedesktop.org/show_bug.cgi?id=13084 */ + cairo_select_font_face (cr, + CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + cairo_move_to (cr, 0., SIZE); + cairo_show_text (cr, "cairo"); + + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_empty_save, + "Test clipping with an empty clip path", + "clip", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-empty.c b/local/recipes/libs/cairo/source/test/clip-empty.c new file mode 100644 index 0000000000..858b69a9e1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-empty.c @@ -0,0 +1,64 @@ +/* + * Copyright © 2007 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 10 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + cairo_reset_clip (cr); + cairo_clip (cr); + + cairo_translate (cr, .5, .5); + + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_fill_preserve (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_stroke (cr); + + /* https://bugs.freedesktop.org/show_bug.cgi?id=13084 */ + cairo_select_font_face (cr, + CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + cairo_move_to (cr, 0., SIZE); + cairo_show_text (cr, "cairo"); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_empty, + "Test clipping with an empty clip path", + "clip", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-fill-no-op.c b/local/recipes/libs/cairo/source/test/clip-fill-no-op.c new file mode 100644 index 0000000000..b686b6e0e7 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-fill-no-op.c @@ -0,0 +1,67 @@ +/* + * Copyright 2009 Benjamin Otte + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + */ + +#include "cairo-test.h" + +#define WIDTH 50 +#define HEIGHT 50 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* Neutral gray background */ + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_paint (cr); + + /* remove this clip operation and everything works */ + cairo_rectangle (cr, 10, 10, 30, 30); + cairo_clip (cr); + + /* remove this no-op and everything works */ + cairo_fill (cr); + + /* make the y coordinates integers and everything works */ + cairo_move_to (cr, 20, 20.101562); + cairo_line_to (cr, 30, 20.101562); + + /* This clip operation should fail to work. But with cairo 1.9, if all the + * 3 cases above happen, the clip will not work and the paint will happen. + */ + cairo_save (cr); { + cairo_set_source_rgba (cr, 1, 0.5, 0.5, 1); + cairo_clip_preserve (cr); + cairo_paint (cr); + } cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_fill_no_op, + "Exercises a bug found by Benjamin Otte whereby a no-op clip is nullified by a stroke", + "clip, fill", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-fill-rule-pixel-aligned.c b/local/recipes/libs/cairo/source/test/clip-fill-rule-pixel-aligned.c new file mode 100644 index 0000000000..210afcb839 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-fill-rule-pixel-aligned.c @@ -0,0 +1,90 @@ +/* + * Copyright © 2004 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define PAD 1 +#define SIZE 5 + +static void +pixel_aligned_path (cairo_t *cr) +{ + cairo_save (cr); + { + cairo_scale (cr, SIZE, SIZE); + cairo_move_to (cr, 1, 0); + cairo_rel_line_to (cr, 1, 0); + cairo_rel_line_to (cr, 0, 3); + cairo_rel_line_to (cr, 1, 0); + cairo_rel_line_to (cr, 0, -1); + cairo_rel_line_to (cr, -3, 0); + cairo_rel_line_to (cr, 0, -1); + cairo_rel_line_to (cr, 4, 0); + cairo_rel_line_to (cr, 0, 3); + cairo_rel_line_to (cr, -3, 0); + cairo_rel_line_to (cr, 0, -4); + cairo_close_path (cr); + } + cairo_restore (cr); +} + +/* Use clipping to draw the same path twice, once with each fill rule */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + + cairo_translate (cr, PAD, PAD); + + cairo_save (cr); + { + pixel_aligned_path (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_clip (cr); + cairo_paint (cr); + } + cairo_restore (cr); + + cairo_translate (cr, SIZE*4 + PAD, 0); + + cairo_save (cr); + { + pixel_aligned_path (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING); + cairo_clip (cr); + cairo_paint (cr); + } + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_fill_rule_pixel_aligned, + "Tests interaction of clipping and cairo_set_fill_rule with a pixel-aligned path", + "clip", /* keywords */ + NULL, /* requirements */ + PAD + (SIZE*4) + PAD + (SIZE*4) + PAD, + PAD + (SIZE*4) + PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-fill-rule.c b/local/recipes/libs/cairo/source/test/clip-fill-rule.c new file mode 100644 index 0000000000..31c3ab71d9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-fill-rule.c @@ -0,0 +1,87 @@ +/* + * Copyright © 2004 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define STAR_SIZE 20 + +static void +star_path (cairo_t *cr) +{ + cairo_move_to (cr, 10, 0); + cairo_rel_line_to (cr, 6, 20); + cairo_rel_line_to (cr, -16, -12); + cairo_rel_line_to (cr, 20, 0); + cairo_rel_line_to (cr, -16, 12); +} + +/* Use clipping to draw the same path twice, once with each fill rule */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 0, 0); + + cairo_translate (cr, 1, 1); + cairo_save (cr); + { + star_path (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING); + cairo_clip (cr); + cairo_paint (cr); + } + cairo_restore (cr); + + cairo_translate (cr, STAR_SIZE + 1, 0); + cairo_save (cr); + { + star_path (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_clip (cr); + cairo_paint (cr); + } + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +a1_draw (cairo_t *cr, int width, int height) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + return draw (cr, width, height); +} + +CAIRO_TEST (clip_fill_rule, + "Tests interaction of clipping with cairo_set_fill_rule", + "clip", /* keywords */ + NULL, /* requirements */ + STAR_SIZE * 2 + 2, STAR_SIZE + 2, + NULL, draw) +CAIRO_TEST (a1_clip_fill_rule, + "Tests interaction of clipping with cairo_set_fill_rule", + "clip", /* keywords */ + "target=raster", /* requirements */ + STAR_SIZE * 2 + 2, STAR_SIZE + 2, + NULL, a1_draw) diff --git a/local/recipes/libs/cairo/source/test/clip-fill.c b/local/recipes/libs/cairo/source/test/clip-fill.c new file mode 100644 index 0000000000..331af7963f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-fill.c @@ -0,0 +1,78 @@ +/* + * Copyright 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define WIDTH 20 +#define HEIGHT 20 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* aligned-clip */ + cairo_save (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_rectangle (cr, 0, 0, 20, 20); + cairo_rectangle (cr, 3, 3, 10, 10); + cairo_rectangle (cr, 7, 7, 10, 10); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 0.7, 0, 0); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0.7, 0); + cairo_arc (cr, 10, 10, 8, 0, 2 * M_PI); + cairo_fill (cr); + cairo_restore (cr); + + cairo_translate (cr, WIDTH, 0); + + /* force a clip-mask */ + cairo_save (cr); + cairo_arc (cr, 10, 10, 10, 0, 2 * M_PI); + cairo_new_sub_path (cr); + cairo_arc_negative (cr, 10, 10, 5, 2 * M_PI, 0); + cairo_new_sub_path (cr); + cairo_arc (cr, 10, 10, 2, 0, 2 * M_PI); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 0, 0, 0.7); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0.7, 0); + cairo_arc (cr, 10, 10, 7.5, 0, 2 * M_PI); + cairo_fill (cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_fill, + "Tests filling through complex clips.", + "clip, fill", /* keywords */ + NULL, /* requirements */ + 2 * WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-group-shapes.c b/local/recipes/libs/cairo/source/test/clip-group-shapes.c new file mode 100644 index 0000000000..88bb9b3dd0 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-group-shapes.c @@ -0,0 +1,188 @@ +/* + * Copyright (c) 2010 M Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: M Joonas Pihlaja + */ +#include "cairo-test.h" + +/* Tests specific clipping fast paths and their interaction with + * groups: It shouldn't matter if the clip is set before or after + * pushing a group. + * + * There's some overlap with the following tests, but they test for + * different things: + * + * group-clip.c (tests preserving paths), clipped-group.c (tests + * clipping the same thing different ways), clip-push-group (tests + * for a specific bug). + */ + +#define GENERATE_REF 0 + +/* For determining whether we establish the clip path before or after + * pushing a group. */ +enum { + CLIP_OUTSIDE_GROUP, + CLIP_INSIDE_GROUP +}; + +typedef void (*clipper_t)(cairo_t *cr, int w, int h); + +static cairo_test_status_t +clip_and_paint (cairo_t *cr, + int w, int h, + clipper_t do_clip, + int clip_where) +{ + cairo_save (cr); { + if (GENERATE_REF) { + do_clip (cr, w, h); + cairo_paint (cr); + } else { + if (clip_where == CLIP_OUTSIDE_GROUP) + do_clip (cr, w, h); + cairo_push_group (cr); { + if (clip_where == CLIP_INSIDE_GROUP) + do_clip (cr, w, h); + cairo_paint (cr); + } + cairo_pop_group_to_source (cr); + if (clip_where == CLIP_OUTSIDE_GROUP) + cairo_reset_clip (cr); + cairo_paint (cr); + } + } + cairo_restore (cr); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +run_clip_test (cairo_t *cr, int w, int h, clipper_t do_clip) +{ + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 1,0,0); + + /* Left. */ + clip_and_paint (cr, w/2, h, do_clip, CLIP_OUTSIDE_GROUP); + + /* Right */ + cairo_translate(cr, w/2, 0); + clip_and_paint (cr, w/2, h, do_clip, CLIP_INSIDE_GROUP); + + return CAIRO_TEST_SUCCESS; +} + +static void +clip_aligned_rectangles (cairo_t *cr, int w, int h) +{ + int x1 = 0.2 * w; + int y1 = 0.2 * h; + int x2 = 0.8 * w; + int y2 = 0.8 * h; + + cairo_rectangle (cr, x1, y1, w, h); + cairo_clip (cr); + + cairo_rectangle (cr, x2, y2, -w, -h); + cairo_clip (cr); +} + +static void +clip_unaligned_rectangles (cairo_t *cr, int w, int h) +{ + /* This clip stresses the antialiased edges produced by an + * unaligned rectangular clip. The edges should be produced by + * compositing red on white with alpha = 0.5 on the sides, and with + * alpha = 0.25 in the corners. */ + int x1 = 0.2 * w; + int y1 = 0.2 * h; + int x2 = 0.8 * w; + int y2 = 0.8 * h; + + cairo_rectangle (cr, x1+0.5, y1+0.5, w, h); + cairo_clip (cr); + + cairo_rectangle (cr, x2+0.5, y2+0.5, -w, -h); + w = x2 - x1; + h = y2 - y1; + cairo_rectangle (cr, x2, y1+1, -w+1, h-1); + cairo_clip (cr); +} + +static void +clip_circles (cairo_t *cr, int w, int h) +{ + int x1 = 0.5 * w; + int y1 = 0.5 * h; + int x2 = 0.75 * w; + int y2 = 0.75 * h; + int r = 0.4*MIN(w,h); + + cairo_arc (cr, x1, y1, r, 0, 6.28); + cairo_close_path (cr); + cairo_clip (cr); + + cairo_arc (cr, x2, y2, r, 0, 6.28); + cairo_close_path (cr); + cairo_clip (cr); +} + +static cairo_test_status_t +draw_aligned_rectangles (cairo_t *cr, int width, int height) +{ + return run_clip_test (cr, width, height, clip_aligned_rectangles); +} + +static cairo_test_status_t +draw_unaligned_rectangles (cairo_t *cr, int width, int height) +{ + return run_clip_test (cr, width, height, clip_unaligned_rectangles); +} + +static cairo_test_status_t +draw_circles (cairo_t *cr, int width, int height) +{ + return run_clip_test (cr, width, height, clip_circles); +} + +CAIRO_TEST (clip_group_shapes_aligned_rectangles, + "Test clip and group interaction with aligned rectangle clips", + "clip", /* keywords */ + NULL, /* requirements */ + 200, 100, + NULL, draw_aligned_rectangles) + +CAIRO_TEST (clip_group_shapes_unaligned_rectangles, + "Test clip and group interaction with unaligned rectangle clips", + "clip", /* keywords */ + "target=raster", /* requirements */ + 200, 100, + NULL, draw_unaligned_rectangles) + +CAIRO_TEST (clip_group_shapes_circles, + "Test clip and group interaction with circular clips", + "clip", /* keywords */ + NULL, /* requirements */ + 200, 100, + NULL, draw_circles) diff --git a/local/recipes/libs/cairo/source/test/clip-image.c b/local/recipes/libs/cairo/source/test/clip-image.c new file mode 100644 index 0000000000..68ed142d64 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-image.c @@ -0,0 +1,95 @@ +/* + * Copyright 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define WIDTH 20 +#define HEIGHT 20 + +static const char *png_filename = "romedalen.png"; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *image; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + image = cairo_test_create_surface_from_png (ctx, png_filename); + cairo_set_source_surface (cr, image, 0, 0); + cairo_surface_destroy (image); + + /* simple clip */ + cairo_save (cr); + cairo_rectangle (cr, 2, 2, 16, 16); + cairo_clip (cr); + cairo_paint (cr); + cairo_restore (cr); + + cairo_translate (cr, WIDTH, 0); + + /* unaligned clip */ + cairo_save (cr); + cairo_rectangle (cr, 2.5, 2.5, 15, 15); + cairo_clip (cr); + cairo_paint (cr); + cairo_restore (cr); + + cairo_translate (cr, -WIDTH, HEIGHT); + + /* aligned-clip */ + cairo_save (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_rectangle (cr, 0, 0, 20, 20); + cairo_rectangle (cr, 3, 3, 10, 10); + cairo_rectangle (cr, 7, 7, 10, 10); + cairo_clip (cr); + cairo_paint (cr); + cairo_restore (cr); + + cairo_translate (cr, WIDTH, 0); + + /* force a clip-mask */ + cairo_save (cr); + cairo_arc (cr, 10, 10, 10, 0, 2 * M_PI); + cairo_new_sub_path (cr); + cairo_arc_negative (cr, 10, 10, 5, 2 * M_PI, 0); + cairo_new_sub_path (cr); + cairo_arc (cr, 10, 10, 2, 0, 2 * M_PI); + cairo_clip (cr); + cairo_paint (cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_image, + "Tests painting an image through complex clips.", + "clip, paint", /* keywords */ + NULL, /* requirements */ + 2 * WIDTH, 2 * HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-intersect.c b/local/recipes/libs/cairo/source/test/clip-intersect.c new file mode 100644 index 0000000000..295fbc93c0 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-intersect.c @@ -0,0 +1,94 @@ +/* + * Copyright 2009 Chris Wilson + * Copyright 2011 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define WIDTH 20 +#define HEIGHT 20 + +static void clip_mask (cairo_t *cr) +{ + cairo_move_to (cr, 10, 0); + cairo_line_to (cr, 0, 10); + cairo_line_to (cr, 10, 20); + cairo_line_to (cr, 20, 10); + cairo_clip (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + clip_mask (cr); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_paint (cr); + cairo_reset_clip (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + + cairo_rectangle (cr, 0, 0, 4, 4); + cairo_clip (cr); + clip_mask (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + + cairo_rectangle (cr, 20, 0, -4, 4); + cairo_clip (cr); + clip_mask (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + + cairo_rectangle (cr, 20, 20, -4, -4); + cairo_clip (cr); + clip_mask (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + + cairo_rectangle (cr, 0, 20, 4, -4); + cairo_clip (cr); + clip_mask (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + + cairo_set_source_rgb (cr, 0, 0, 1); + + cairo_rectangle (cr, 8, 8, 4, 4); + cairo_clip (cr); + clip_mask (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_intersect, + "Tests intersection of a simple clip with a clip-mask", + "clip, paint", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-mixed-antialias.c b/local/recipes/libs/cairo/source/test/clip-mixed-antialias.c new file mode 100644 index 0000000000..23a55ff63e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-mixed-antialias.c @@ -0,0 +1,128 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define WIDTH 200 +#define HEIGHT 200 + +/* This is an example from the wild, as silly as it is +n 52 0 429 709 rectangle +clip+ +//ANTIALIAS_NONE set-antialias +n 8 0 m 952 0 l 956.417969 0 960 3.582031 960 8 c 960 1807 l 960 1811.417969 956.417969 1815 952 1815 c 8 1815 l 3.582031 1815 0 1811.417969 0 1807 c 0 8 l 0 3.582031 3.582031 0 8 0 c h +clip+ +//EVEN_ODD set-fill-rule +n 0 0 m 480 0 l 480 708 l 0 708 l h 8 1 m 952 1 l 955.867188 1 959 4.132812 959 8 c 959 1807 l 959 1810.867188 955.867188 1814 952 1814 c 8 1814 l 4.132812 1814 1 1810.867188 1 1807 c 1 8 l 1 4.132812 4.132812 1 8 1 c h +clip+ +//WINDING set-fill-rule +//ANTIALIAS_DEFAULT set-antialias +n 960 0 m 52.5 907.5 l 52.5 1815 l 960 1815 l h +clip+ +//ANTIALIAS_NONE set-antialias +n 960 0 m 52.5 0 l 52.5 907.5 l 960 1815 l h +clip+ +*/ + +static void background (cairo_t *cr) +{ + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); +} + +static void clip_0 (cairo_t *cr) +{ + cairo_rectangle (cr, 5, 5, 190, 190); + cairo_clip (cr); +} + +static void clip_1 (cairo_t *cr) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + cairo_arc (cr, 100, 100, 125, 0, 2*M_PI); + cairo_clip (cr); + + cairo_set_antialias (cr, CAIRO_ANTIALIAS_DEFAULT); +} + +static void +rounded_rectangle (cairo_t *cr, int x, int y, int w, int h, int r) +{ + cairo_new_sub_path (cr); + cairo_arc (cr, x + r, y + r, r, M_PI, 3 * M_PI / 2); + cairo_arc (cr, x + w - r, y + r, r, 3 *M_PI / 2, 2 * M_PI); + cairo_arc (cr, x + w - r, y + h - r, r, 0, M_PI / 2); + cairo_arc (cr, x + r, y + h - r, r, M_PI / 2, M_PI); + cairo_close_path (cr); +} + +static void clip_2 (cairo_t *cr) +{ + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + + rounded_rectangle (cr, 50, 50, 100, 100, 15); + rounded_rectangle (cr, 60, 60, 80, 80, 5); + cairo_clip (cr); + + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING); +} + +static void clip_3 (cairo_t *cr) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + cairo_rectangle (cr, 40.25, 60.25, 120, 80); + cairo_rectangle (cr, 60.25, 40.25, 80, 120); + cairo_clip (cr); + + cairo_set_antialias (cr, CAIRO_ANTIALIAS_DEFAULT); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + background (cr); + + clip_0 (cr); + clip_1 (cr); + clip_2 (cr); + clip_3 (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_mixed_antialias, + "Test drawing through through an mixture of clips", + "clip", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-nesting.c b/local/recipes/libs/cairo/source/test/clip-nesting.c new file mode 100644 index 0000000000..a9227ec77c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-nesting.c @@ -0,0 +1,109 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Owen Taylor + */ + +#include "cairo-test.h" +#include +#include + +#define SIZE 100 +#define BORDER 10 +#define LINE_WIDTH 20 + +static void +_propagate_status (cairo_t *dst, cairo_t *src) +{ + cairo_path_t path; + + path.status = cairo_status (src); + if (path.status) { + path.num_data = 0; + path.data = NULL; + cairo_append_path (dst, &path); + } +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *target_surface; + cairo_t *cr2, *cr3; + + target_surface = cairo_get_group_target (cr); + + cr2 = cairo_create (target_surface); + + /* Draw a diagonal line and clip to it */ + + cairo_move_to (cr2, BORDER, BORDER); + cairo_line_to (cr2, BORDER + LINE_WIDTH, BORDER); + cairo_line_to (cr2, SIZE - BORDER, SIZE - BORDER); + cairo_line_to (cr2, SIZE - BORDER - LINE_WIDTH, SIZE - BORDER); + + cairo_clip (cr2); + cairo_set_source_rgb (cr2, 0, 0, 1); /* Blue */ + cairo_paint (cr2); + + /* Clipping affects this cairo_t */ + + cairo_set_source_rgb (cr2, 1, 1, 1); /* White */ + cairo_rectangle (cr2, + SIZE / 2 - LINE_WIDTH / 2, BORDER, + LINE_WIDTH, SIZE - 2 * BORDER); + cairo_fill (cr2); + + /* But doesn't affect another cairo_t that we create temporarily for + * the same surface + */ + cr3 = cairo_create (target_surface); + cairo_set_source_rgb (cr3, 1, 1, 1); /* White */ + cairo_rectangle (cr3, + SIZE - BORDER - LINE_WIDTH, BORDER, + LINE_WIDTH, SIZE - 2 * BORDER); + cairo_fill (cr3); + + _propagate_status (cr, cr3); + cairo_destroy (cr3); + + _propagate_status (cr, cr2); + cairo_destroy (cr2); + + /* And doesn't affect anything after this cairo_t is destroyed */ + + cairo_set_source_rgb (cr, 1, 1, 1); /* White */ + cairo_rectangle (cr, + BORDER, BORDER, + LINE_WIDTH, SIZE - 2 * BORDER); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; + +} + +CAIRO_TEST (clip_nesting, + "Test clipping with multiple contexts for the same surface", + "clip", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-operator.c b/local/recipes/libs/cairo/source/test/clip-operator.c new file mode 100644 index 0000000000..ac0a5e966b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-operator.c @@ -0,0 +1,188 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Kristian Høgsberg + */ + +#include "cairo-test.h" +#include +#include + +#define WIDTH 16 +#define HEIGHT 16 +#define PAD 2 + +static void +draw_mask (cairo_t *cr, int x, int y) +{ + cairo_surface_t *mask_surface; + cairo_t *cr2; + + double width = (int)(0.9 * WIDTH); + double height = (int)(0.9 * HEIGHT); + x += 0.05 * WIDTH; + y += 0.05 * HEIGHT; + + mask_surface = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, + width, height); + cr2 = cairo_create (mask_surface); + cairo_surface_destroy (mask_surface); + + cairo_save (cr2); + cairo_set_source_rgba (cr2, 0, 0, 0, 0); /* transparent */ + cairo_set_operator (cr2, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr2); + cairo_restore (cr2); + + cairo_set_source_rgb (cr2, 1, 1, 1); /* white */ + + cairo_arc (cr2, 0.5 * width, 0.5 * height, 0.45 * height, 0, 2 * M_PI); + cairo_fill (cr2); + + cairo_mask_surface (cr, cairo_get_target (cr2), x, y); + cairo_destroy (cr2); +} + +static void +draw_glyphs (cairo_t *cr, int x, int y) +{ + cairo_text_extents_t extents; + + cairo_set_font_size (cr, 0.8 * HEIGHT); + + cairo_text_extents (cr, "FG", &extents); + cairo_move_to (cr, + x + floor ((WIDTH - extents.width) / 2 + 0.5) - extents.x_bearing, + y + floor ((HEIGHT - extents.height) / 2 + 0.5) - extents.y_bearing); + cairo_show_text (cr, "FG"); +} + +static void +draw_polygon (cairo_t *cr, int x, int y) +{ + double width = (int)(0.9 * WIDTH); + double height = (int)(0.9 * HEIGHT); + x += 0.05 * WIDTH; + y += 0.05 * HEIGHT; + + cairo_new_path (cr); + cairo_move_to (cr, x, y); + cairo_line_to (cr, x, y + height); + cairo_line_to (cr, x + width / 2, y + 3 * height / 4); + cairo_line_to (cr, x + width, y + height); + cairo_line_to (cr, x + width, y); + cairo_line_to (cr, x + width / 2, y + height / 4); + cairo_close_path (cr); + cairo_fill (cr); +} + +static void +draw_rects (cairo_t *cr, int x, int y) +{ + double block_width = (int)(0.33 * WIDTH + 0.5); + double block_height = (int)(0.33 * HEIGHT + 0.5); + int i, j; + + for (i = 0; i < 3; i++) + for (j = 0; j < 3; j++) + if ((i + j) % 2 == 0) + cairo_rectangle (cr, + x + block_width * i, y + block_height * j, + block_width, block_height); + + cairo_fill (cr); +} + +static void (* const draw_funcs[])(cairo_t *cr, int x, int y) = { + draw_mask, + draw_glyphs, + draw_polygon, + draw_rects +}; + +#define N_OPERATORS (1 + CAIRO_OPERATOR_SATURATE - CAIRO_OPERATOR_CLEAR) + +#define IMAGE_WIDTH (N_OPERATORS * (WIDTH + PAD) + PAD) +#define IMAGE_HEIGHT (ARRAY_LENGTH (draw_funcs) * (HEIGHT + PAD) + PAD) + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + size_t j, x, y; + cairo_operator_t op; + cairo_pattern_t *pattern; + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, 0.9 * HEIGHT); + + for (j = 0; j < ARRAY_LENGTH (draw_funcs); j++) { + for (op = CAIRO_OPERATOR_CLEAR; op < N_OPERATORS; op++) { + x = op * (WIDTH + PAD) + PAD; + y = j * (HEIGHT + PAD) + PAD; + + cairo_save (cr); + + pattern = cairo_pattern_create_linear (x + WIDTH, y, + x, y + HEIGHT); + cairo_pattern_add_color_stop_rgba (pattern, 0.2, + 0.0, 0.0, 1.0, 1.0); /* Solid blue */ + cairo_pattern_add_color_stop_rgba (pattern, 0.8, + 0.0, 0.0, 1.0, 0.0); /* Transparent blue */ + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + cairo_rectangle (cr, x, y, WIDTH, HEIGHT); + cairo_fill (cr); + + cairo_set_operator (cr, op); + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + + cairo_move_to (cr, x, y); + cairo_line_to (cr, x + WIDTH, y); + cairo_line_to (cr, x, y + HEIGHT); + cairo_clip (cr); + + draw_funcs[j] (cr, x, y); + if (cairo_status (cr)) + cairo_test_log (ctx, "%d %d HERE!\n", op, (int)j); + + cairo_restore (cr); + } + } + + if (cairo_status (cr) != CAIRO_STATUS_SUCCESS) + cairo_test_log (ctx, "%d %d .HERE!\n", op, (int)j); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_operator, + "Surface clipping with different operators", + "clip", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/clip-polygons.c b/local/recipes/libs/cairo/source/test/clip-polygons.c new file mode 100644 index 0000000000..83eb4df3a6 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-polygons.c @@ -0,0 +1,112 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define STEP 5 +#define WIDTH 100 +#define HEIGHT 100 + +static void diamond (cairo_t *cr) +{ + cairo_move_to (cr, WIDTH/2, 0); + cairo_line_to (cr, WIDTH, HEIGHT/2); + cairo_line_to (cr, WIDTH/2, HEIGHT); + cairo_line_to (cr, 0, HEIGHT/2); + cairo_close_path (cr); +} + +static void background (cairo_t *cr) +{ + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source_rgb (cr, 0,0,0); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + background (cr); + + /* completely overlapping diamonds */ + cairo_save (cr); + diamond (cr); + cairo_clip (cr); + diamond (cr); + cairo_clip (cr); + cairo_paint (cr); + cairo_restore (cr); + + cairo_translate (cr, WIDTH, 0); + + /* partial overlap */ + cairo_save (cr); + cairo_translate (cr, -WIDTH/4, 0); + diamond (cr); + cairo_clip (cr); + cairo_translate (cr, WIDTH/2, 0); + diamond (cr); + cairo_clip (cr); + cairo_paint (cr); + cairo_restore (cr); + + cairo_translate (cr, WIDTH, 0); + + /* no overlap, but the bounding boxes must */ + cairo_save (cr); + cairo_translate (cr, -WIDTH/2 + 2, -2); + diamond (cr); + cairo_clip (cr); + cairo_translate (cr, WIDTH - 4, 4); + diamond (cr); + cairo_clip (cr); + cairo_paint (cr); + cairo_restore (cr); + + cairo_translate (cr, WIDTH, 0); + + /* completely disjoint */ + cairo_save (cr); + cairo_translate (cr, -WIDTH/2 - 1, 0); + diamond (cr); + cairo_clip (cr); + cairo_translate (cr, WIDTH + 2, 0); + diamond (cr); + cairo_clip (cr); + cairo_paint (cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_polygons, + "Test drawing through through an intersection of polygons", + "clip", /* keywords */ + "target=raster", /* requirements */ + 4*WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-push-group.c b/local/recipes/libs/cairo/source/test/clip-push-group.c new file mode 100644 index 0000000000..f63ac731db --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-push-group.c @@ -0,0 +1,67 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +/* A test for the crash described here: + * + * https://lists.freedesktop.org/archives/cairo/2006-August/007698.html + * + * The triggering condition for this bug should be setting a + * surface-based clip and then calling cairo_push_group. + */ + +#include "cairo-test.h" + +#define SIZE 10 +#define PAD 2 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* An overly complex way of drawing a blue circle onto a red + * background, to trigger the bug. */ + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + cairo_paint (cr); + + cairo_arc (cr, + SIZE / 2, SIZE / 2, + SIZE / 2 - PAD, + 0, 2 * M_PI); + cairo_clip (cr); + + cairo_push_group (cr); + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_paint (cr); + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_push_group, + "Test that push_group doesn't crash after setting a surface-based clip", + "clip", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-rectilinear.c b/local/recipes/libs/cairo/source/test/clip-rectilinear.c new file mode 100644 index 0000000000..98db4a2c77 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-rectilinear.c @@ -0,0 +1,90 @@ +/* + * Copyright (c) 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 120 + +static void L(cairo_t *cr, int w, int h) +{ + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, 0, h); + cairo_line_to (cr, w, h); + cairo_line_to (cr, w, h/2); + cairo_line_to (cr, w/2, h/2); + cairo_line_to (cr, w/2, 0); + cairo_close_path (cr); +} + +static void LL(cairo_t *cr, int w, int h) +{ + cairo_save (cr); + + /* aligned */ + cairo_rectangle (cr, 0, 0, w, h); + cairo_clip (cr); + L (cr, w, h); + cairo_clip (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + + /* unaligned */ + cairo_translate (cr, w+.25, .25); + cairo_rectangle (cr, 0, 0, w, h); + cairo_clip (cr); + L (cr, w, h); + cairo_clip (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int w = SIZE/2, h = SIZE/2; + + cairo_paint (cr); /* opaque background */ + + cairo_set_source_rgb (cr, 1, 0, 0); + LL (cr, w, h); + + cairo_translate (cr, 0, h); + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + cairo_set_source_rgb (cr, 0, 0, 1); + LL (cr, w, h); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_rectilinear, + "Test handling of rectilinear clipping", + "clip", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-shape.c b/local/recipes/libs/cairo/source/test/clip-shape.c new file mode 100644 index 0000000000..6a74a6ed59 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-shape.c @@ -0,0 +1,86 @@ +/* + * Copyright (c) 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +/* Adapted from a bug report by */ + +#include "cairo-test.h" + +static const struct xy { + double x; + double y; +} gp[] = { + { 100, 250 }, + { 100, 100 }, + { 150, 230 }, + { 239, 100 }, + { 239, 250 }, +}; + +static const double vp[3] = { 100, 144, 238.5 }; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + + cairo_paint (cr); /* opaque background */ + + for (i = 0; i < 5; ++i) + cairo_line_to (cr, gp[i].x, gp[i].y); + cairo_close_path (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, 1.5); + cairo_stroke_preserve (cr); + cairo_clip (cr); + + for (i = 1; i < 3; ++i) { + double x1 = vp[i - 1]; + double x2 = vp[i]; + + cairo_move_to (cr, x1, 0); + cairo_line_to (cr, x1, height); + cairo_line_to (cr, x2, height); + cairo_line_to (cr, x2, 0); + cairo_close_path (cr); + + if (i & 1) + cairo_set_source_rgb (cr, 0, 1, 0); + else + cairo_set_source_rgb (cr, 1, 1, 0); + + cairo_fill (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_shape, + "Test handling of clipping with a non-aligned shape", + "clip", /* keywords */ + NULL, /* requirements */ + 400, 300, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-stroke-no-op.c b/local/recipes/libs/cairo/source/test/clip-stroke-no-op.c new file mode 100644 index 0000000000..8eb91719bf --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-stroke-no-op.c @@ -0,0 +1,67 @@ +/* + * Copyright 2009 Benjamin Otte + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + */ + +#include "cairo-test.h" + +#define WIDTH 50 +#define HEIGHT 50 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* Neutral gray background */ + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_paint (cr); + + /* remove this clip operation and everything works */ + cairo_rectangle (cr, 10, 10, 30, 30); + cairo_clip (cr); + + /* remove this no-op and everything works */ + cairo_stroke (cr); + + /* make the y coordinates integers and everything works */ + cairo_move_to (cr, 20, 20.101562); + cairo_line_to (cr, 30, 20.101562); + + /* This clip operation should fail to work. But with cairo 1.9, if all the + * 3 cases above happen, the clip will not work and the paint will happen. + */ + cairo_save (cr); { + cairo_set_source_rgba (cr, 1, 0.5, 0.5, 1); + cairo_clip_preserve (cr); + cairo_paint (cr); + } cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_stroke_no_op, + "Exercises a bug found by Benjamin Otte whereby a no-op clip is nullified by a stroke", + "clip, stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-stroke.c b/local/recipes/libs/cairo/source/test/clip-stroke.c new file mode 100644 index 0000000000..9714dd0670 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-stroke.c @@ -0,0 +1,121 @@ +/* + * Copyright 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define WIDTH 40 +#define HEIGHT 40 + +static void +shapes (cairo_t *cr) +{ + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0.7, 0); + cairo_arc (cr, 10, 10, 7.5, 0, 2 * M_PI); + cairo_stroke (cr); + + cairo_set_source_rgb (cr, 0, 0.7, 0.7); + cairo_arc (cr, 10, 10, 25, 0, 2 * M_PI); + cairo_stroke (cr); + cairo_rectangle (cr, -5, -5, 30, 30); + cairo_stroke (cr); + + cairo_set_source_rgb (cr, 0.7, 0.7, 0); + cairo_save (cr); + cairo_translate (cr, 10, 10); + cairo_rotate (cr, M_PI/4); + cairo_translate (cr, -10, -10); + cairo_rectangle (cr, -5, -5, 30, 30); + cairo_stroke (cr); + cairo_restore (cr); + + cairo_set_source_rgb (cr, 0.7, 0.0, 0.7); + cairo_move_to (cr, 15, -10); + cairo_line_to (cr, 30, 10); + cairo_line_to (cr, 15, 30); + cairo_stroke (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, 10, 10); + + /* simple clip */ + cairo_save (cr); + cairo_rectangle (cr, 0, 0, 20, 20); + cairo_clip (cr); + shapes (cr); + cairo_restore (cr); + + cairo_translate (cr, WIDTH, 0); + + /* unaligned clip */ + cairo_save (cr); + cairo_rectangle (cr, 0.5, 0.5, 20, 20); + cairo_clip (cr); + shapes (cr); + cairo_restore (cr); + + cairo_translate (cr, -WIDTH, HEIGHT); + + /* aligned-clip */ + cairo_save (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_rectangle (cr, 0, 0, 20, 20); + cairo_rectangle (cr, 3, 3, 10, 10); + cairo_rectangle (cr, 7, 7, 10, 10); + cairo_clip (cr); + shapes (cr); + cairo_restore (cr); + + cairo_translate (cr, WIDTH, 0); + + /* force a clip-mask */ + cairo_save (cr); + cairo_arc (cr, 10, 10, 10, 0, 2 * M_PI); + cairo_new_sub_path (cr); + cairo_arc_negative (cr, 10, 10, 5, 2 * M_PI, 0); + cairo_new_sub_path (cr); + cairo_arc (cr, 10, 10, 2, 0, 2 * M_PI); + cairo_clip (cr); + shapes (cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_stroke, + "Tests stroke through complex clips.", + "clip, stroke", /* keywords */ + NULL, /* requirements */ + 2 * WIDTH, 2* HEIGHT, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/clip-text.c b/local/recipes/libs/cairo/source/test/clip-text.c new file mode 100644 index 0000000000..ed8e107961 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-text.c @@ -0,0 +1,88 @@ +/* + * Copyright 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define WIDTH 20 +#define HEIGHT 20 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const char *cairo = "Cairo"; + cairo_text_extents_t extents; + double x0, y0; + + cairo_text_extents (cr, cairo, &extents); + x0 = WIDTH/2. - (extents.width/2. + extents.x_bearing); + y0 = HEIGHT/2. - (extents.height/2. + extents.y_bearing); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* aligned-clip */ + cairo_save (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_rectangle (cr, 0, 0, 20, 20); + cairo_rectangle (cr, 3, 3, 10, 10); + cairo_rectangle (cr, 7, 7, 10, 10); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 0.7, 0, 0); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_move_to (cr, x0, y0); + cairo_show_text (cr, cairo); + cairo_restore (cr); + + cairo_translate (cr, WIDTH, 0); + + /* force a clip-mask */ + cairo_save (cr); + cairo_arc (cr, 10, 10, 10, 0, 2 * M_PI); + cairo_new_sub_path (cr); + cairo_arc_negative (cr, 10, 10, 5, 2 * M_PI, 0); + cairo_new_sub_path (cr); + cairo_arc (cr, 10, 10, 2, 0, 2 * M_PI); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 0, 0, 0.7); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_move_to (cr, x0, y0); + cairo_show_text (cr, cairo); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_text, + "Tests drawing text through complex clips.", + "clip, text", /* keywords */ + NULL, /* requirements */ + 2 * WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-twice-rectangle.c b/local/recipes/libs/cairo/source/test/clip-twice-rectangle.c new file mode 100644 index 0000000000..28f16ec84d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-twice-rectangle.c @@ -0,0 +1,70 @@ +/* + * Copyright © 2010 Mozilla Corporation + * Copyright © 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *mask; + cairo_t *cr2; + + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_paint (cr); + + /* clip twice, note that the intersection is smaller then the extents */ + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_rectangle (cr, 10, 10, 80, 80); + cairo_rectangle (cr, 20, 20, 60, 60); + cairo_clip (cr); + + cairo_rectangle (cr, 0, 40, 40, 30); + cairo_clip (cr); + + /* and exercise the bug found by Jeff Muizelaar */ + mask = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_ALPHA, + width-20, height-20); + cr2 = cairo_create (mask); + cairo_surface_destroy (mask); + + cairo_set_source_rgba (cr2, 1, 1, 1, 1); + cairo_paint (cr2); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_mask_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_twice_rectangle, + "Tests clipping twice using rectangles", + "clip", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-twice.c b/local/recipes/libs/cairo/source/test/clip-twice.c new file mode 100644 index 0000000000..641b55144e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-twice.c @@ -0,0 +1,74 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Kristian Høgsberg + */ + +#include "cairo-test.h" + +#define WIDTH 64 +#define HEIGHT 64 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_new_path (cr); + cairo_arc (cr, WIDTH / 2, HEIGHT / 2, WIDTH / 3, 0, 2 * M_PI); + cairo_clip (cr); + + cairo_new_path (cr); + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, WIDTH / 4, HEIGHT / 2); + cairo_line_to (cr, 0, HEIGHT); + cairo_line_to (cr, WIDTH, HEIGHT); + cairo_line_to (cr, 3 * WIDTH / 4, HEIGHT / 2); + cairo_line_to (cr, WIDTH, 0); + cairo_close_path (cr); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 0, 0, 0.6); + + cairo_new_path (cr); + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, 0, HEIGHT); + cairo_line_to (cr, WIDTH / 2, 3 * HEIGHT / 4); + cairo_line_to (cr, WIDTH, HEIGHT); + cairo_line_to (cr, WIDTH, 0); + cairo_line_to (cr, WIDTH / 2, HEIGHT / 4); + cairo_close_path (cr); + cairo_fill (cr); + + cairo_new_path (cr); + cairo_arc (cr, WIDTH / 2, HEIGHT / 2, WIDTH / 5, 0, 2 * M_PI); + cairo_clip (cr); + cairo_set_source_rgb (cr, 1, 1, 0); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_twice, + "Verifies that the clip mask is updated correctly when it constructed by setting the clip path twice.", + "clip", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clip-unbounded.c b/local/recipes/libs/cairo/source/test/clip-unbounded.c new file mode 100644 index 0000000000..cd1c602232 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-unbounded.c @@ -0,0 +1,80 @@ +/* + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 10 + +static cairo_surface_t * +create_source (cairo_surface_t *target) +{ + cairo_surface_t *similar; + cairo_t *cr; + + similar = cairo_surface_create_similar (target, + CAIRO_CONTENT_COLOR, SIZE/2, SIZE); + cr = cairo_create (similar); + cairo_surface_destroy (similar); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + similar = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return similar; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *source; + + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + cairo_rectangle (cr, 0, 0, SIZE/2, SIZE); + cairo_clip (cr); + + /* Draw a source rectangle outside the image, the effect should be to + * clear only within the clip region. + */ + source = create_source (cairo_get_target (cr)); + cairo_set_source_surface (cr, source, SIZE/2, 0); + cairo_surface_destroy (source); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_unbounded, + "Test handling of an unbounded fill outside the clip region", + "clip", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/clip-zero.c b/local/recipes/libs/cairo/source/test/clip-zero.c new file mode 100644 index 0000000000..302b2b1619 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clip-zero.c @@ -0,0 +1,72 @@ +/* + * Copyright © 2007 Mozilla Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Vladimir Vukicevic + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pat; + cairo_surface_t *surf; + + cairo_new_path (cr); + cairo_rectangle (cr, 0, 0, 0, 0); + cairo_clip (cr); + + cairo_push_group (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + + cairo_new_path (cr); + cairo_rectangle (cr, -10, 10, 20, 20); + cairo_fill_preserve (cr); + cairo_stroke_preserve (cr); + cairo_paint (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, "ABC"); + + cairo_mask (cr, cairo_get_source (cr)); + + surf = cairo_surface_create_similar (cairo_get_group_target (cr), CAIRO_CONTENT_COLOR_ALPHA, 0, 0); + pat = cairo_pattern_create_for_surface (surf); + cairo_surface_destroy (surf); + + cairo_mask (cr, pat); + cairo_pattern_destroy (pat); + + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_zero, + "Verifies that 0x0 surfaces or clips don't cause problems.", + "clip", /* keywords */ + NULL, /* requirements */ + 0, 0, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clipped-group.c b/local/recipes/libs/cairo/source/test/clipped-group.c new file mode 100644 index 0000000000..a66f357f8b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clipped-group.c @@ -0,0 +1,88 @@ +/* + * Copyright © 2008 Mozilla Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Mozilla Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Mozilla Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Jeff Muizelaar + */ + +#include "cairo-test.h" + +#define WIDTH 60 +#define HEIGHT 70 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* fill with black so we don't need an rgb test case */ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + /* setting a scale will ensure that the device offset is transformed */ + cairo_scale (cr, 2.1, 2.8); + cairo_set_source_rgb (cr, 1, .5,.4); + + /* all rectangles should look the same */ + + /* plain rectangle */ + cairo_rectangle (cr, 4, 4, 8, 8); + cairo_fill (cr); + + cairo_translate (cr, 10, 0); + + /* clipped rectangle */ + cairo_save (cr); + cairo_rectangle (cr, 3, 3, 9, 9); + cairo_clip (cr); + cairo_rectangle (cr, 4, 4, 8, 8); + cairo_fill (cr); + cairo_restore (cr); + + cairo_translate (cr, 0, 10); + + /* clipped and grouped rectangle */ + cairo_save (cr); + cairo_rectangle (cr, 3, 3, 9, 9); + cairo_clip (cr); + cairo_push_group (cr); + cairo_rectangle (cr, 4, 4, 8, 8); + cairo_fill (cr); + cairo_pop_group_to_source (cr); + cairo_paint (cr); + cairo_restore (cr); + + cairo_translate (cr, -10, 0); + + /* grouped rectangle */ + cairo_push_group (cr); + cairo_rectangle (cr, 4, 4, 8, 8); + cairo_fill (cr); + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clipped_group, + "Test that a clipped group ends up in the right place", + "clip", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clipped-surface.c b/local/recipes/libs/cairo/source/test/clipped-surface.c new file mode 100644 index 0000000000..a10652dc86 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clipped-surface.c @@ -0,0 +1,63 @@ +/* + * Copyright 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +/* + * Michael Natterer (mitch) reported a bad regression with post-1.8 trunk + * with artifacts drawn whilst repainting exposed areas. + */ + +#include "cairo-test.h" + +static const char png_filename[] = "romedalen.png"; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *image; + + image = cairo_test_create_surface_from_png (ctx, png_filename); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + cairo_rectangle (cr, 20, 20, 10, 10); + cairo_clip (cr); + + cairo_set_source_surface (cr, image, 10, 10); + cairo_surface_destroy (image); + + cairo_rectangle (cr, 10, 10, 20, 20); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clipped_surface, + "Tests application of a clip to a source surface", + "clip", /* keywords */ + NULL, /* requirements */ + 40, 40, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/clipped-trapezoids-ref.png b/local/recipes/libs/cairo/source/test/clipped-trapezoids-ref.png new file mode 100644 index 0000000000..3fd300c04d Binary files /dev/null and b/local/recipes/libs/cairo/source/test/clipped-trapezoids-ref.png differ diff --git a/local/recipes/libs/cairo/source/test/clipped-trapezoids.c b/local/recipes/libs/cairo/source/test/clipped-trapezoids.c new file mode 100644 index 0000000000..1f96daa8c3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/clipped-trapezoids.c @@ -0,0 +1,95 @@ +/* + * Copyright 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double dash[2] = { 8, 4 }; + double radius; + + radius = width; + if (height > radius) + radius = height; + + /* fill the background using a big circle */ + cairo_arc (cr, 0, 0, 4 * radius, 0, 2 * M_PI); + cairo_fill (cr); + + /* a rotated square - overlapping the corners */ + cairo_save (cr); + cairo_save (cr); + cairo_translate (cr, width/2, height/2); + cairo_rotate (cr, M_PI/4); + cairo_scale (cr, M_SQRT2, M_SQRT2); + cairo_rectangle (cr, -width/2, -height/2, width, height); + cairo_restore (cr); + cairo_set_source_rgba (cr, 0, 1, 0, .5); + cairo_set_line_width (cr, radius/2); + cairo_stroke (cr); + cairo_restore (cr); + + /* and put some circles in the corners */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_new_sub_path (cr); + cairo_arc (cr, 0, 0, radius/4, 0, 2 * M_PI); + cairo_new_sub_path (cr); + cairo_arc (cr, width, 0, radius/4, 0, 2 * M_PI); + cairo_new_sub_path (cr); + cairo_arc (cr, width, height, radius/4, 0, 2 * M_PI); + cairo_new_sub_path (cr); + cairo_arc (cr, 0, height, radius/4, 0, 2 * M_PI); + cairo_fill (cr); + + /* a couple of pixel-aligned lines */ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_move_to (cr, width/2, -height); + cairo_rel_line_to (cr, 0, 3*height); + cairo_move_to (cr, -width, height/2); + cairo_rel_line_to (cr, 3*width, 0); + cairo_stroke (cr); + + /* a couple of dashed diagonals */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_dash (cr, dash, 2, 0); + cairo_set_line_width (cr, 4.); + cairo_move_to (cr, -width, -height); + cairo_line_to (cr, width+width, height+height); + cairo_move_to (cr, width+width, -height); + cairo_line_to (cr, -width, height+height); + cairo_stroke (cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clipped_trapezoids, + "Tests clipping of trapezoids larger than the surface", + "clip", /* keywords */ + NULL, /* requirements */ + 40, 40, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/close-path-current-point.c b/local/recipes/libs/cairo/source/test/close-path-current-point.c new file mode 100644 index 0000000000..35f8d423bd --- /dev/null +++ b/local/recipes/libs/cairo/source/test/close-path-current-point.c @@ -0,0 +1,95 @@ +/* + * Copyright © 2009 Nis Martensen + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear in + * supporting documentation, and that the name of the copyright holder + * not be used in advertising or publicity pertaining to distribution of + * the software without specific, written prior permission. The + * copyright holder makes no representations about the suitability of + * this software for any purpose. It is provided "as is" without + * express or implied warranty. + * + * THE COPYRIGHT HOLDER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF + * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Nis Martensen + */ + +#include "cairo-test.h" + +#define SIZE 20 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + /* subpath starts with cairo_move_to */ + cairo_new_sub_path (cr); + cairo_move_to (cr, SIZE, SIZE); + cairo_rel_line_to (cr, SIZE, 0); + cairo_rel_line_to (cr, 0, SIZE); + cairo_close_path (cr); + cairo_rel_line_to (cr, 0.5 * SIZE, SIZE); + + /* subpath starts with cairo_line_to */ + cairo_new_sub_path (cr); + cairo_line_to (cr, SIZE, 3 * SIZE); + cairo_rel_line_to (cr, SIZE, 0); + cairo_rel_line_to (cr, 0, SIZE); + cairo_close_path (cr); + cairo_rel_line_to (cr, 0, SIZE); + + /* subpath starts with cairo_curve_to */ + cairo_new_sub_path (cr); + cairo_curve_to (cr, + SIZE, 5 * SIZE, + 1.5 * SIZE, 6 * SIZE, + 2 * SIZE, 5 * SIZE); + cairo_rel_line_to (cr, 0, SIZE); + cairo_close_path (cr); + cairo_rel_line_to (cr, -0.5 * SIZE, SIZE); + + /* subpath starts with cairo_arc */ + cairo_new_sub_path (cr); + cairo_arc (cr, + 1.5 * SIZE, 7 * SIZE, + 0.5 * SIZE, + M_PI, 2 * M_PI); + cairo_rel_line_to (cr, 0, SIZE); + cairo_close_path (cr); + cairo_rel_line_to (cr, -0.7 * SIZE, 0.7 * SIZE); + + /* subpath starts with cairo_arc_negative */ + cairo_new_sub_path (cr); + cairo_arc_negative (cr, + 1.5 * SIZE, 9 * SIZE, + 0.5 * SIZE, + M_PI, 2 * M_PI); + cairo_rel_line_to (cr, 0, SIZE); + cairo_close_path (cr); + cairo_rel_line_to (cr, -0.8 * SIZE, 0.3 * SIZE); + + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (close_path_current_point, + "Test some corner cases related to cairo path operations and the current point", + "path", /* keywords */ + NULL, /* requirements */ + 3 * SIZE, 11 * SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/close-path.c b/local/recipes/libs/cairo/source/test/close-path.c new file mode 100644 index 0000000000..f1f1230fa0 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/close-path.c @@ -0,0 +1,78 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" +#include + +static cairo_test_draw_function_t draw; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_path_t *path; + + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + /* This curious approach for drawing a circle (starting with a + * closed arc) exercises a bug in which the "last move point" was + * not being set so the close_path closes to (0,0). */ + cairo_arc (cr, 8, 8, 4, 0, M_PI); + cairo_close_path (cr); + cairo_arc (cr, 8, 8, 4, M_PI, 2 * M_PI); + + cairo_fill (cr); + + cairo_translate (cr, 16, 0); + + /* Here a curve immediately after a close_to will begin from (0,0) + * when the path is obtained with cairo_copy_path_flat. */ + cairo_move_to (cr, 8, 4); + cairo_arc_negative (cr, 8, 8, 4, 3 * M_PI / 2.0, M_PI / 2.0); + cairo_close_path (cr); + cairo_curve_to (cr, + 12, 4, + 12, 12, + 8, 12); + + path = cairo_copy_path_flat (cr); + cairo_new_path (cr); + cairo_append_path (cr, path); + cairo_path_destroy (path); + + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (close_path, + "Test some corner cases related to cairo_close_path", + "path", /* keywords */ + NULL, /* requirements */ + 32, 16, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/compare-results b/local/recipes/libs/cairo/source/test/compare-results new file mode 100755 index 0000000000..97df824780 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/compare-results @@ -0,0 +1,57 @@ +#!/usr/bin/python + +# Print the difference between two results.txt files from cairo tests + +import sys + +old_filename = sys.argv[1] +new_filename = sys.argv[2] + +results = { } + +f = open(old_filename, "r") +for line in f.readlines(): + if 'RESULT:' not in line: + continue + + items = line.split(" ") + testcase = dict(zip(items[0::2], items[1::2])) + + try: + k = "%s.%s.%s" %( + testcase['TEST:'], + testcase['TARGET:'], + testcase.get('FORMAT:', '')) + results[k] = testcase['RESULT:'] + except: + print line + raise + +f = open(new_filename, "r") +for line in f.readlines(): + if 'RESULT:' not in line: + # Not a results line. Skip + continue + + items = line.split(" ") + testcase = dict(zip(items[0::2], items[1::2])) + try: + k = "%s.%s.%s" %( + testcase['TEST:'], + testcase['TARGET:'], + testcase.get('FORMAT:','')) + except: + print line + raise + + if k not in results.keys(): + # New test? Skip + continue + + old_val = results[k].strip() + new_val = testcase['RESULT:'].strip() + if old_val == new_val: + # Test didn't change. Skip + continue + + print("%s -> %s # %s" % (old_val, new_val, k)) diff --git a/local/recipes/libs/cairo/source/test/completion.bash b/local/recipes/libs/cairo/source/test/completion.bash new file mode 100644 index 0000000000..6942ea8672 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/completion.bash @@ -0,0 +1 @@ +complete -W "$(./cairo-test-suite -l)" cairo-test-suite diff --git a/local/recipes/libs/cairo/source/test/composite-integer-translate-over-repeat.c b/local/recipes/libs/cairo/source/test/composite-integer-translate-over-repeat.c new file mode 100644 index 0000000000..d9e00057b0 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/composite-integer-translate-over-repeat.c @@ -0,0 +1,84 @@ +/* + * Copyright © 2007 Mozilla Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Vladimir Vukicevic + */ + +#include "cairo-test.h" +#include +#include + +#define SIZE 100 +#define SIZE2 20 +#define OFFSET 10 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *image; + cairo_pattern_t *pat; + cairo_t *cr2; + + image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, SIZE2, SIZE2); + cr2 = cairo_create (image); + cairo_surface_destroy (image); + + cairo_set_source_rgba (cr2, 1, 0, 0, 1); + cairo_rectangle (cr2, 0, 0, SIZE2/2, SIZE2/2); + cairo_fill (cr2); + cairo_set_source_rgba (cr2, 0, 1, 0, 1); + cairo_rectangle (cr2, SIZE2/2, 0, SIZE2/2, SIZE2/2); + cairo_fill (cr2); + cairo_set_source_rgba (cr2, 0, 0, 1, 1); + cairo_rectangle (cr2, 0, SIZE2/2, SIZE2/2, SIZE2/2); + cairo_fill (cr2); + cairo_set_source_rgba (cr2, 1, 1, 0, 1); + cairo_rectangle (cr2, SIZE2/2, SIZE2/2, SIZE2/2, SIZE2/2); + cairo_fill (cr2); + + pat = cairo_pattern_create_for_surface (cairo_get_target (cr2)); + cairo_destroy (cr2); + + cairo_pattern_set_extend (pat, CAIRO_EXTEND_REPEAT); + + cairo_set_source_rgba (cr, 0, 0, 0, 1); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_fill (cr); + + cairo_translate (cr, OFFSET, OFFSET); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source (cr, pat); + cairo_rectangle (cr, 0, 0, SIZE - OFFSET, SIZE - OFFSET); + cairo_fill (cr); + + cairo_pattern_destroy (pat); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (composite_integer_translate_over_repeat, + "Test simple compositing: integer-translation 32->32 OVER, with repeat", + "composite", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/composite-integer-translate-over.c b/local/recipes/libs/cairo/source/test/composite-integer-translate-over.c new file mode 100644 index 0000000000..1b82a3379b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/composite-integer-translate-over.c @@ -0,0 +1,61 @@ +/* + * Copyright © 2006 Mozilla Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Mozilla Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Mozilla Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Vladimir Vukicevic + */ +#include "cairo-test.h" +#include +#include + +#define SIZE 100 +#define OFFSET 10 +static const char *png_filename = "romedalen.png"; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *image; + + image = cairo_test_create_surface_from_png (ctx, png_filename); + + cairo_set_source_rgba (cr, 0, 0, 0, 1); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_fill (cr); + + cairo_translate (cr, OFFSET, OFFSET); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source_surface (cr, image, 0, 0); + cairo_rectangle (cr, 0, 0, (SIZE-OFFSET), (SIZE-OFFSET)); + cairo_fill (cr); + + cairo_surface_destroy (image); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (composite_integer_translate_over, + "Test simple compositing: integer-translation 32->32 OVER", + "composite", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/composite-integer-translate-source.c b/local/recipes/libs/cairo/source/test/composite-integer-translate-source.c new file mode 100644 index 0000000000..e6fd933667 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/composite-integer-translate-source.c @@ -0,0 +1,64 @@ +/* + * Copyright © 2007 Mozilla Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Vladimir Vukicevic + */ + +#include "cairo-test.h" +#include +#include + +#define SIZE 100 +#define OFFSET 10 + +static const char *png_filename = "romedalen.png"; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *image; + + image = cairo_test_create_surface_from_png (ctx, png_filename); + + cairo_set_source_rgba (cr, 0, 0, 0, 1); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_fill (cr); + + cairo_translate (cr, OFFSET, OFFSET); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_surface (cr, image, 0, 0); + cairo_rectangle (cr, 0, 0, SIZE - OFFSET, SIZE - OFFSET); + cairo_fill (cr); + + cairo_surface_destroy (image); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (composite_integer_translate_source, + "Test simple compositing: integer-translation 32->32 SOURCE", + "composite", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/copy-disjoint.c b/local/recipes/libs/cairo/source/test/copy-disjoint.c new file mode 100644 index 0000000000..1ddfd5a91b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/copy-disjoint.c @@ -0,0 +1,87 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* The goal is exercise a bug that existed in the xlib backend, where + * it assumed the rectangles generated by rectangular tessallator had + * any sorting guarantees. + */ + +#define WIDTH 300 +#define HEIGHT 300 + +static cairo_surface_t * +create_source (cairo_surface_t *target) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_surface_create_similar (target, + CAIRO_CONTENT_COLOR, + WIDTH, HEIGHT); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return surface; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *white; + int x; + + /* black background */ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + /* white rectangles */ + white = create_source (cairo_get_target (cr)); + cairo_set_source_surface (cr, white, 0, 0); + cairo_surface_destroy (white); + + /* blit a set of rectangles that the rectangular tessellator + * will not emit sorted. */ + for (x = 0; x < WIDTH - 10; x += 15) + cairo_rectangle (cr, x, x, 10, HEIGHT - 2*x); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (copy_disjoint, + "Tests copying unsorted rectangles.", + "fill", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/copy-path.c b/local/recipes/libs/cairo/source/test/copy-path.c new file mode 100644 index 0000000000..7d7a4f467f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/copy-path.c @@ -0,0 +1,314 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" +#include + +static void +scale_by_two (double *x, double *y) +{ + *x = *x * 2.0; + *y = *y * 2.0; +} + +typedef void (*munge_func_t) (double *x, double *y); + +static void +munge_and_set_path (cairo_t *cr, + cairo_path_t *path, + munge_func_t munge) +{ + int i; + cairo_path_data_t *p; + double x1, y1, x2, y2, x3, y3; + + if (path->status) { + cairo_append_path (cr, path); + return; + } + + for (i=0; i < path->num_data; i += path->data[i].header.length) { + p = &path->data[i]; + switch (p->header.type) { + case CAIRO_PATH_MOVE_TO: + x1 = p[1].point.x; y1 = p[1].point.y; + (munge) (&x1, &y1); + cairo_move_to (cr, x1, y1); + break; + case CAIRO_PATH_LINE_TO: + x1 = p[1].point.x; y1 = p[1].point.y; + (munge) (&x1, &y1); + cairo_line_to (cr, x1, y1); + break; + case CAIRO_PATH_CURVE_TO: + x1 = p[1].point.x; y1 = p[1].point.y; + x2 = p[2].point.x; y2 = p[2].point.y; + x3 = p[3].point.x; y3 = p[3].point.y; + (munge) (&x1, &y1); + (munge) (&x2, &y2); + (munge) (&x3, &y3); + cairo_curve_to (cr, + x1, y1, + x2, y2, + x3, y3); + break; + case CAIRO_PATH_CLOSE_PATH: + cairo_close_path (cr); + break; + } + } +} + +static void +make_path (cairo_t *cr) +{ + cairo_rectangle (cr, 0, 0, 5, 5); + cairo_move_to (cr, 15, 2.5); + cairo_arc (cr, 12.5, 2.5, 2.5, 0, 2 * M_PI); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_path_t *path; + cairo_t *cr_error; + + /* Ensure that calling cairo_copy_path on an in-error cairo_t will + * propagate the error. */ + cr_error = cairo_create (NULL); + path = cairo_copy_path (cr_error); + if (path->status != CAIRO_STATUS_NULL_POINTER) { + cairo_test_log (ctx, + "Error: cairo_copy_path returned status of %s rather than propagating %s\n", + cairo_status_to_string (path->status), + cairo_status_to_string (CAIRO_STATUS_NULL_POINTER)); + cairo_path_destroy (path); + cairo_destroy (cr_error); + return CAIRO_TEST_FAILURE; + } + cairo_path_destroy (path); + + path = cairo_copy_path_flat (cr_error); + if (path->status != CAIRO_STATUS_NULL_POINTER) { + cairo_test_log (ctx, + "Error: cairo_copy_path_flat returned status of %s rather than propagating %s\n", + cairo_status_to_string (path->status), + cairo_status_to_string (CAIRO_STATUS_NULL_POINTER)); + cairo_path_destroy (path); + cairo_destroy (cr_error); + return CAIRO_TEST_FAILURE; + } + cairo_path_destroy (path); + + cairo_destroy (cr_error); + + /* first check that we can copy an empty path */ + cairo_new_path (cr); + path = cairo_copy_path (cr); + if (path->status != CAIRO_STATUS_SUCCESS) { + cairo_status_t status = path->status; + cairo_test_log (ctx, + "Error: cairo_copy_path returned status of %s\n", + cairo_status_to_string (status)); + cairo_path_destroy (path); + return cairo_test_status_from_status (ctx, status); + } + if (path->num_data != 0) { + cairo_test_log (ctx, + "Error: cairo_copy_path did not copy an empty path, returned path contains %d elements\n", + path->num_data); + cairo_path_destroy (path); + return CAIRO_TEST_FAILURE; + } + cairo_append_path (cr, path); + cairo_path_destroy (path); + if (cairo_status (cr) != CAIRO_STATUS_SUCCESS) { + cairo_test_log (ctx, + "Error: cairo_append_path failed with a copy of an empty path, returned status of %s\n", + cairo_status_to_string (cairo_status (cr))); + return cairo_test_status_from_status (ctx, cairo_status (cr)); + } + + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + /* copy path, munge, and fill */ + cairo_translate (cr, 5, 5); + make_path (cr); + path = cairo_copy_path (cr); + + cairo_new_path (cr); + munge_and_set_path (cr, path, scale_by_two); + cairo_path_destroy (path); + cairo_fill (cr); + + /* copy flattened path, munge, and fill */ + cairo_translate (cr, 0, 15); + make_path (cr); + path = cairo_copy_path_flat (cr); + + cairo_new_path (cr); + munge_and_set_path (cr, path, scale_by_two); + cairo_path_destroy (path); + cairo_fill (cr); + + /* append two copies of path, and fill */ + cairo_translate (cr, 0, 15); + cairo_scale (cr, 2.0, 2.0); + make_path (cr); + path = cairo_copy_path (cr); + + cairo_new_path (cr); + cairo_append_path (cr, path); + cairo_translate (cr, 2.5, 2.5); + cairo_append_path (cr, path); + + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_fill (cr); + + cairo_path_destroy (path); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_t *cr; + cairo_path_data_t data; + cairo_path_t path; + cairo_surface_t *surface; + cairo_status_t status; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 1); + status = cairo_surface_status (surface); + if (status) { + cairo_surface_destroy (surface); + return cairo_test_status_from_status (ctx, status); + } + + /* Test a few error cases for cairo_append_path_data */ +#define CAIRO_CREATE() do {\ + cr = cairo_create (surface); \ + status = cairo_status (cr); \ + if (status) { \ + cairo_destroy (cr); \ + cairo_surface_destroy (surface); \ + return cairo_test_status_from_status (ctx, status); \ + } \ +} while (0) + CAIRO_CREATE (); + cairo_append_path (cr, NULL); + status = cairo_status (cr); + cairo_destroy (cr); + if (status != CAIRO_STATUS_NULL_POINTER) { + cairo_surface_destroy (surface); + return cairo_test_status_from_status (ctx, status); + } + + CAIRO_CREATE (); + path.status = -1; + cairo_append_path (cr, &path); + status = cairo_status (cr); + cairo_destroy (cr); + if (status != CAIRO_STATUS_INVALID_STATUS) { + cairo_surface_destroy (surface); + return cairo_test_status_from_status (ctx, status); + } + + CAIRO_CREATE (); + path.status = CAIRO_STATUS_NO_MEMORY; + cairo_append_path (cr, &path); + status = cairo_status (cr); + cairo_destroy (cr); + if (status != CAIRO_STATUS_NO_MEMORY) { + cairo_surface_destroy (surface); + return cairo_test_status_from_status (ctx, status); + } + + CAIRO_CREATE (); + path.data = NULL; + path.num_data = 0; + path.status = CAIRO_STATUS_SUCCESS; + cairo_append_path (cr, &path); + status = cairo_status (cr); + cairo_destroy (cr); + if (status != CAIRO_STATUS_SUCCESS) { + cairo_surface_destroy (surface); + return cairo_test_status_from_status (ctx, status); + } + + CAIRO_CREATE (); + path.data = NULL; + path.num_data = 1; + path.status = CAIRO_STATUS_SUCCESS; + cairo_append_path (cr, &path); + status = cairo_status (cr); + cairo_destroy (cr); + if (status != CAIRO_STATUS_NULL_POINTER) { + cairo_surface_destroy (surface); + return cairo_test_status_from_status (ctx, status); + } + + CAIRO_CREATE (); + /* Intentionally insert bogus header.length value (otherwise would be 2) */ + data.header.type = CAIRO_PATH_MOVE_TO; + data.header.length = 1; + path.data = &data; + path.num_data = 1; + cairo_append_path (cr, &path); + status = cairo_status (cr); + cairo_destroy (cr); + if (status != CAIRO_STATUS_INVALID_PATH_DATA) { + cairo_surface_destroy (surface); + return cairo_test_status_from_status (ctx, status); + } + + /* And test the degenerate case */ + CAIRO_CREATE (); + path.num_data = 0; + cairo_append_path (cr, &path); + status = cairo_status (cr); + cairo_destroy (cr); + if (status != CAIRO_STATUS_SUCCESS) { + cairo_surface_destroy (surface); + return cairo_test_status_from_status (ctx, status); + } + + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (copy_path, + "Tests calls to path_data functions: cairo_copy_path, cairo_copy_path_flat, and cairo_append_path", + "path", /* keywords */ + NULL, /* requirements */ + 45, 53, + preamble, draw) diff --git a/local/recipes/libs/cairo/source/test/coverage.c b/local/recipes/libs/cairo/source/test/coverage.c new file mode 100644 index 0000000000..0749fa22a7 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/coverage.c @@ -0,0 +1,508 @@ +/* + * Copyright 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* Test the fidelity of the rasterisation, because Cairo is my favourite + * driver test suite. + */ + +#define GENERATE_REFERENCE 0 + +#define WIDTH 256 +#define HEIGHT 40 + +#include "../src/cairo-fixed-type-private.h" +#define PRECISION (1 << CAIRO_FIXED_FRAC_BITS) + +/* XXX beware multithreading! */ +static uint32_t state; + +static uint32_t +hars_petruska_f54_1_random (void) +{ +#define rol(x,k) ((x << k) | (x >> (32-k))) + return state = (state ^ rol (state, 5) ^ rol (state, 24)) + 0x37798849; +#undef rol +} + +static double +random_offset (int range, int precise, int width) +{ + double x = hars_petruska_f54_1_random() / (double) UINT32_MAX * range / width; + if (precise) + x = floor (x * PRECISION) / PRECISION; + return x; +} + +static cairo_test_status_t +rectangles (cairo_t *cr, int width, int height) +{ + int x, y, channel; + + state = 0x12345678; + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + +#if GENERATE_REFERENCE + for (x = 0; x < width; x++) { + cairo_set_source_rgba (cr, 1, 1, 1, x * x * 1.0 / (width * width)); + cairo_rectangle (cr, x, 0, 1, height); + cairo_fill (cr); + } +#else + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (channel = 0; channel < 3; channel++) { + switch (channel) { + default: + case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break; + case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break; + case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; + } + + for (x = 0; x < width; x++) { + for (y = 0; y < height; y++) { + double dx = random_offset (width - x, TRUE, width); + double dy = random_offset (width - x, TRUE, width); + cairo_rectangle (cr, x + dx, y + dy, x / (double) width, x / (double) width); + } + } + cairo_fill (cr); + } +#endif + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +rhombus (cairo_t *cr, int width, int height) +{ + int x, y; + int internal_size = width / 2; + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + +#if GENERATE_REFERENCE + for (y = 0; y < internal_size; y++) { + for (x = 0; x < internal_size; x++) { + cairo_set_source_rgba (cr, 1, 1, 1, + x * y / (2. * internal_size * internal_size)); + cairo_rectangle (cr, 2*x, 2*y, 2, 2); + cairo_fill (cr); + } + } +#else + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source_rgb (cr, 1, 1, 1); + + for (y = 0; y < internal_size; y++) { + double yf = y / (double) internal_size; + for (x = 0; x < internal_size; x++) { + double xf = x / (double) internal_size; + + cairo_move_to (cr, + 2*x + 1 - xf, + 2*y + 1); + cairo_line_to (cr, + 2*x + 1, + 2*y + 1 - yf); + cairo_line_to (cr, + 2*x + 1 + xf, + 2*y + 1); + cairo_line_to (cr, + 2*x + 1, + 2*y + 1 + yf); + cairo_close_path (cr); + } + } + + cairo_fill (cr); +#endif + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +intersecting_quads (cairo_t *cr, int width, int height) +{ + int x, y, channel; + + state = 0x12345678; + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + +#if GENERATE_REFERENCE + for (x = 0; x < width; x++) { + cairo_set_source_rgba (cr, 1, 1, 1, x * x * 0.5 / (width * width)); + cairo_rectangle (cr, x, 0, 1, height); + cairo_fill (cr); + } +#else + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (channel = 0; channel < 3; channel++) { + switch (channel) { + default: + case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break; + case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break; + case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; + } + + for (x = 0; x < width; x++) { + double step = x / (double) width; + for (y = 0; y < height; y++) { + double dx = random_offset (width - x, TRUE, width); + double dy = random_offset (width - x, TRUE, width); + cairo_move_to (cr, x + dx, y + dy); + cairo_rel_line_to (cr, step, step); + cairo_rel_line_to (cr, 0, -step); + cairo_rel_line_to (cr, -step, step); + cairo_close_path (cr); + } + } + cairo_fill (cr); + } +#endif + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +intersecting_triangles (cairo_t *cr, int width, int height) +{ + int x, y, channel; + + state = 0x12345678; + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + +#if GENERATE_REFERENCE + for (x = 0; x < width; x++) { + cairo_set_source_rgba (cr, 1, 1, 1, x * x * 0.75 / (width * width)); + cairo_rectangle (cr, x, 0, 1, height); + cairo_fill (cr); + } +#else + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (channel = 0; channel < 3; channel++) { + switch (channel) { + default: + case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break; + case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break; + case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; + } + + for (x = 0; x < width; x++) { + double step = x / (double) width; + for (y = 0; y < height; y++) { + double dx = random_offset (width - x, TRUE, width); + double dy = random_offset (width - x, TRUE, width); + + /* left */ + cairo_move_to (cr, x + dx, y + dy); + cairo_rel_line_to (cr, 0, step); + cairo_rel_line_to (cr, step, 0); + cairo_close_path (cr); + + /* right, mirrored */ + cairo_move_to (cr, x + dx + step, y + dy + step); + cairo_rel_line_to (cr, 0, -step); + cairo_rel_line_to (cr, -step, step); + cairo_close_path (cr); + } + } + cairo_fill (cr); + } +#endif + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +triangles (cairo_t *cr, int width, int height) +{ + int x, y, channel; + + state = 0x12345678; + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + +#if GENERATE_REFERENCE + for (x = 0; x < width; x++) { + cairo_set_source_rgba (cr, 1, 1, 1, x * x * 0.5 / (width * width)); + cairo_rectangle (cr, x, 0, 1, height); + cairo_fill (cr); + } +#else + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (channel = 0; channel < 3; channel++) { + switch (channel) { + default: + case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break; + case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break; + case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; + } + + for (x = 0; x < width; x++) { + for (y = 0; y < height; y++) { + double dx = random_offset (width - x, TRUE, width); + double dy = random_offset (width - x, TRUE, width); + cairo_move_to (cr, x + dx, y + dy); + cairo_rel_line_to (cr, x / (double) width, 0); + cairo_rel_line_to (cr, 0, x / (double) width); + cairo_close_path (cr); + } + } + cairo_fill (cr); + } +#endif + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +abutting (cairo_t *cr, int width, int height) +{ + int x, y; + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.75); + +#if GENERATE_REFERENCE + cairo_paint (cr); +#else + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + + for (y = 0; y < 16; y++) { + for (x = 0; x < 16; x++) { + double theta = (y * 16 + x) * M_PI / 512; + double cx = 16 * cos (theta) + x * 16; + double cy = 16 * sin (theta) + y * 16; + + cairo_move_to (cr, x * 16, y * 16); + cairo_line_to (cr, cx, cy); + cairo_line_to (cr, (x + 1) * 16, y * 16); + cairo_fill (cr); + + cairo_move_to (cr, (x + 1) * 16, y * 16); + cairo_line_to (cr, cx, cy); + cairo_line_to (cr, (x + 1) * 16, (y + 1) * 16); + cairo_fill (cr); + + cairo_move_to (cr, (x + 1) * 16, (y + 1) * 16); + cairo_line_to (cr, cx, cy); + cairo_line_to (cr, x * 16, (y + 1) * 16); + cairo_fill (cr); + + cairo_move_to (cr, x * 16, (y + 1) * 16); + cairo_line_to (cr, cx, cy); + cairo_line_to (cr, x * 16, y * 16); + cairo_fill (cr); + } + } +#endif + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +column_triangles (cairo_t *cr, int width, int height) +{ + int x, y, i, channel; + + state = 0x12345678; + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + +#if GENERATE_REFERENCE + for (x = 0; x < width; x++) { + cairo_set_source_rgba (cr, 1, 1, 1, x * 0.5 / width); + cairo_rectangle (cr, x, 0, 1, height); + cairo_fill (cr); + } +#else + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (channel = 0; channel < 3; channel++) { + switch (channel) { + default: + case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break; + case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break; + case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; + } + + for (x = 0; x < width; x++) { + double step = x / (double) (2 * width); + for (y = 0; y < height; y++) { + for (i = 0; i < PRECISION; i++) { + double dy = random_offset (width - x, FALSE, width); + + /* + * We want to test some sharing of edges to further + * stress the rasterisers, so instead of using one + * tall triangle, it is split into two, with vertical + * edges on either side that may co-align with their + * neighbours: + * + * s --- . --- + * t | |\ | + * e | | \ | + * p --- .... | 2 * step = x / width + * \ | | + * \| | + * . --- + * |---| + * 1 / PRECISION + * + * Each column contains two triangles of width one quantum and + * total height of (x / width), thus the total area covered by all + * columns in each pixel is .5 * (x / width). + */ + + cairo_move_to (cr, x + i / (double) PRECISION, y + dy); + cairo_rel_line_to (cr, 0, step); + cairo_rel_line_to (cr, 1 / (double) PRECISION, step); + cairo_rel_line_to (cr, 0, -step); + cairo_close_path (cr); + } + cairo_fill (cr); /* do these per-pixel due to the extra volume of edges */ + } + } + } +#endif + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +row_triangles (cairo_t *cr, int width, int height) +{ + int x, y, i, channel; + + state = 0x12345678; + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + +#if GENERATE_REFERENCE + for (x = 0; x < width; x++) { + cairo_set_source_rgba (cr, 1, 1, 1, x * 0.5 / width); + cairo_rectangle (cr, x, 0, 1, height); + cairo_fill (cr); + } +#else + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (channel = 0; channel < 3; channel++) { + switch (channel) { + default: + case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break; + case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break; + case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; + } + + for (x = 0; x < width; x++) { + double step = x / (double) (2 * width); + for (y = 0; y < height; y++) { + for (i = 0; i < PRECISION; i++) { + double dx = random_offset (width - x, FALSE, width); + + /* See column_triangles() for a transposed description + * of this geometry. + */ + + cairo_move_to (cr, x + dx, y + i / (double) PRECISION); + cairo_rel_line_to (cr, step, 0); + cairo_rel_line_to (cr, step, 1 / (double) PRECISION); + cairo_rel_line_to (cr, -step, 0); + cairo_close_path (cr); + } + cairo_fill (cr); /* do these per-pixel due to the extra volume of edges */ + } + } + } +#endif + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (coverage_rectangles, + "Check the fidelity of the rasterisation.", + NULL, /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, rectangles) + +CAIRO_TEST (coverage_rhombus, + "Check the fidelity of the rasterisation.", + NULL, /* keywords */ + "target=raster", /* requirements */ + 2*WIDTH, 2*WIDTH, + NULL, rhombus) + +CAIRO_TEST (coverage_intersecting_quads, + "Check the fidelity of the rasterisation.", + NULL, /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, intersecting_quads) + +CAIRO_TEST (coverage_intersecting_triangles, + "Check the fidelity of the rasterisation.", + NULL, /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, intersecting_triangles) +CAIRO_TEST (coverage_row_triangles, + "Check the fidelity of the rasterisation.", + NULL, /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, row_triangles) +CAIRO_TEST (coverage_column_triangles, + "Check the fidelity of the rasterisation.", + NULL, /* keywords */ + "target=raster", /* requirements */ + /* Smaller height since this test does not vary by y-coordinate */ + WIDTH, 4, + NULL, column_triangles) +CAIRO_TEST (coverage_triangles, + "Check the fidelity of the rasterisation.", + NULL, /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, triangles) +CAIRO_TEST (coverage_abutting, + "Check the fidelity of the rasterisation.", + NULL, /* keywords */ + "target=raster", /* requirements */ + 16*16, 16*16, + NULL, abutting) diff --git a/local/recipes/libs/cairo/source/test/create-for-stream.c b/local/recipes/libs/cairo/source/test/create-for-stream.c new file mode 100644 index 0000000000..06f2db2b0a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/create-for-stream.c @@ -0,0 +1,335 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Kristian Høgsberg + */ + +#include "cairo-test.h" + +#include +#include +#include + +#ifndef _WIN32 +#include +#endif + +#if CAIRO_HAS_PS_SURFACE +#include +#endif + +#if CAIRO_HAS_PDF_SURFACE +#include +#endif + +#if CAIRO_HAS_SVG_SURFACE +#include +#endif + +#include "cairo-test.h" + +/* The main test suite doesn't test the *_create_for_stream + * constructors for the PDF, PS and SVG surface, so we do that here. + * We draw to an in-memory buffer using the stream constructor and + * compare the output to the contents of a file written using the + * file constructor. + */ + +#define MAX_OUTPUT_SIZE 4096 + +#define WIDTH_IN_INCHES 3 +#define HEIGHT_IN_INCHES 3 +#define WIDTH_IN_POINTS (WIDTH_IN_INCHES * 72.0) +#define HEIGHT_IN_POINTS (HEIGHT_IN_INCHES * 72.0) + +#define BASENAME "create-for-stream.out" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* Just draw a rectangle. */ + + cairo_rectangle (cr, width / 10., height /10., + width - 2 * width / 10., + height - 2 * height /10.); + cairo_fill (cr); + + cairo_show_page (cr); + + return CAIRO_TEST_SUCCESS; +} + +static void +draw_to (cairo_surface_t *surface) +{ + cairo_t *cr; + + cr = cairo_create (surface); + + draw (cr, WIDTH_IN_POINTS, HEIGHT_IN_POINTS); + + cairo_destroy (cr); +} + +typedef struct _write_closure { + const cairo_test_context_t *ctx; + char buffer[MAX_OUTPUT_SIZE]; + size_t index; + cairo_test_status_t status; +} write_closure_t; + +static cairo_status_t +bad_write (void *closure, + const unsigned char *data, + unsigned int length) +{ + return CAIRO_STATUS_WRITE_ERROR; +} + +static cairo_status_t +test_write (void *closure, + const unsigned char *data, + unsigned int length) +{ + write_closure_t *wc = closure; + + if (wc->index + length >= sizeof wc->buffer) { + cairo_test_log (wc->ctx, "Error: out of bounds in write callback\n"); + wc->status = CAIRO_TEST_FAILURE; + return CAIRO_STATUS_SUCCESS; + } + + memcpy (&wc->buffer[wc->index], data, length); + wc->index += length; + + return CAIRO_STATUS_SUCCESS; +} + + +typedef cairo_surface_t * +(*file_constructor_t) (const char *filename, + double width_in_points, + double height_in_points); + +typedef cairo_surface_t * +(*stream_constructor_t) (cairo_write_func_t write_func, + void *closure, + double width_in_points, + double height_in_points); + +static cairo_test_status_t +test_surface (const cairo_test_context_t *ctx, + const char *backend, + const char *filename, + file_constructor_t file_constructor, + stream_constructor_t stream_constructor) +{ + cairo_surface_t *surface; + write_closure_t wc; + char file_contents[MAX_OUTPUT_SIZE]; + cairo_status_t status; + FILE *fp; + + /* test propagation of user errors */ + surface = stream_constructor (bad_write, &wc, + WIDTH_IN_POINTS, HEIGHT_IN_POINTS); + + status = cairo_surface_status (surface); + if (status) { + cairo_test_log (ctx, + "%s: Failed to create surface for stream.\n", + backend); + return CAIRO_TEST_FAILURE; + } + + draw_to (surface); + + cairo_surface_finish (surface); + status = cairo_surface_status (surface); + cairo_surface_destroy (surface); + + if (status != CAIRO_STATUS_WRITE_ERROR) { + cairo_test_log (ctx, + "%s: Error: expected \"write error\" from bad_write(), but received \"%s\".\n", + backend, cairo_status_to_string (status)); + return CAIRO_TEST_FAILURE; + } + + /* test propagation of file errors - for now this is unix-only */ +#ifndef _WIN32 + if (access("/dev/full", W_OK) == 0) { + surface = file_constructor ("/dev/full", WIDTH_IN_POINTS, HEIGHT_IN_POINTS); + cairo_surface_finish (surface); + status = cairo_surface_status (surface); + cairo_surface_destroy (surface); + + if (status != CAIRO_STATUS_WRITE_ERROR) { + cairo_test_log (ctx, + "%s: Error: expected \"write error\" from /dev/full, but received \"%s\".\n", + backend, cairo_status_to_string (status)); + return CAIRO_TEST_FAILURE; + } + } else { + cairo_test_log (ctx, + "/dev/full does not exist; skipping write test.\n"); + } +#endif + + /* construct the real surface */ + wc.ctx = ctx; + wc.status = CAIRO_TEST_SUCCESS; + wc.index = 0; + + surface = stream_constructor (test_write, &wc, + WIDTH_IN_POINTS, HEIGHT_IN_POINTS); + + status = cairo_surface_status (surface); + if (status) { + cairo_test_log (ctx, + "%s: Failed to create surface for stream.\n", backend); + return CAIRO_TEST_FAILURE; + } + + draw_to (surface); + + cairo_surface_destroy (surface); + + if (wc.status != CAIRO_TEST_SUCCESS) { + /* Error already reported. */ + return wc.status; + } + + surface = file_constructor (filename, + WIDTH_IN_POINTS, HEIGHT_IN_POINTS); + + status = cairo_surface_status (surface); + if (status) { + cairo_test_log (ctx, "%s: Failed to create surface for file %s: %s.\n", + backend, filename, cairo_status_to_string (status)); + return CAIRO_TEST_FAILURE; + } + + draw_to (surface); + + cairo_surface_destroy (surface); + + fp = fopen (filename, "r"); + if (fp == NULL) { + cairo_test_log (ctx, "%s: Failed to open %s for reading: %s.\n", + backend, filename, strerror (errno)); + return CAIRO_TEST_FAILURE; + } + + if (fread (file_contents, 1, wc.index, fp) != wc.index) { + cairo_test_log (ctx, "%s: Failed to read %s: %s.\n", + backend, filename, strerror (errno)); + fclose (fp); + return CAIRO_TEST_FAILURE; + } + + if (memcmp (file_contents, wc.buffer, wc.index) != 0) { + cairo_test_log (ctx, "%s: Stream based output differ from file output for %s.\n", + backend, filename); + fclose (fp); + return CAIRO_TEST_FAILURE; + } + + fclose (fp); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_test_status_t status = CAIRO_TEST_UNTESTED; + cairo_test_status_t test_status; + char *filename; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + +#if CAIRO_HAS_PS_SURFACE + if (cairo_test_is_target_enabled (ctx, "ps2") || + cairo_test_is_target_enabled (ctx, "ps3")) + { + if (status == CAIRO_TEST_UNTESTED) + status = CAIRO_TEST_SUCCESS; + + xasprintf (&filename, "%s/%s", path, BASENAME ".ps"); + test_status = test_surface (ctx, "ps", filename, + cairo_ps_surface_create, + cairo_ps_surface_create_for_stream); + cairo_test_log (ctx, "TEST: %s TARGET: %s RESULT: %s\n", + ctx->test->name, "ps", + test_status ? "FAIL" : "PASS"); + if (status == CAIRO_TEST_SUCCESS) + status = test_status; + free (filename); + } +#endif + +#if CAIRO_HAS_PDF_SURFACE + if (cairo_test_is_target_enabled (ctx, "pdf")) { + if (status == CAIRO_TEST_UNTESTED) + status = CAIRO_TEST_SUCCESS; + + xasprintf (&filename, "%s/%s", path, BASENAME ".pdf"); + test_status = test_surface (ctx, "pdf", filename, + cairo_pdf_surface_create, + cairo_pdf_surface_create_for_stream); + cairo_test_log (ctx, "TEST: %s TARGET: %s RESULT: %s\n", + ctx->test->name, "pdf", + test_status ? "FAIL" : "PASS"); + if (status == CAIRO_TEST_SUCCESS) + status = test_status; + free (filename); + } +#endif + +#if CAIRO_HAS_SVG_SURFACE + if (cairo_test_is_target_enabled (ctx, "svg11") || + cairo_test_is_target_enabled (ctx, "svg12")) + { + if (status == CAIRO_TEST_UNTESTED) + status = CAIRO_TEST_SUCCESS; + + xasprintf (&filename, "%s/%s", path, BASENAME ".svg"); + test_status = test_surface (ctx, "svg", filename, + cairo_svg_surface_create, + cairo_svg_surface_create_for_stream); + cairo_test_log (ctx, "TEST: %s TARGET: %s RESULT: %s\n", + ctx->test->name, "svg", + test_status ? "FAIL" : "PASS"); + if (status == CAIRO_TEST_SUCCESS) + status = test_status; + free (filename); + } +#endif + + return status; +} + +CAIRO_TEST (create_for_stream, + "Checks creating vector surfaces with user defined I/O\n", + "stream", /* keywords */ + "target=vector", /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/create-from-broken-png-stream.c b/local/recipes/libs/cairo/source/test/create-from-broken-png-stream.c new file mode 100644 index 0000000000..88cce0affc --- /dev/null +++ b/local/recipes/libs/cairo/source/test/create-from-broken-png-stream.c @@ -0,0 +1,84 @@ +/* + * Copyright © 2017 Uli Schlachter + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Uli Schlachter + */ + +#include "cairo-test.h" + +#include + +static const unsigned char broken_png_data[] = { + 0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, + 0x49, 0x48, 0x44, 0x52, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x02, + 0x08, 0x02, 0x00, 0x00, 0x00, 0xfd, 0xd4, 0x9a, 0xff, 0x00, 0x00, 0x00, +}; +static const size_t broken_png_data_length + = sizeof(broken_png_data) / sizeof(broken_png_data[0]); + +static cairo_status_t +read_png_from_data (void *closure, unsigned char *data, unsigned int length) +{ + size_t *offset = closure; + size_t remaining = broken_png_data_length - *offset; + + if (remaining < length) + return CAIRO_STATUS_READ_ERROR; + + memcpy (data, &broken_png_data[*offset], length); + *offset += length; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_surface_t *surface; + cairo_status_t status; + cairo_status_t expected; + size_t offset = 0; + + surface = cairo_image_surface_create_from_png_stream (read_png_from_data, + &offset); + + expected = CAIRO_STATUS_PNG_ERROR; + status = cairo_surface_status (surface); + cairo_surface_destroy (surface); + if (status != expected) { + cairo_test_log (ctx, + "Error: expected error %s, but got %s\n", + cairo_status_to_string (expected), + cairo_status_to_string (status)); + + return CAIRO_TEST_FAILURE; + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (create_from_broken_png_stream, + "Tests the creation of a PNG from malformed data", + "png", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/create-from-png-16bit.c b/local/recipes/libs/cairo/source/test/create-from-png-16bit.c new file mode 100644 index 0000000000..71c13ecd3c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/create-from-png-16bit.c @@ -0,0 +1,80 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2021 Manuel Stoeckl + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl Worth + * Author: Manuel Stoeckl + */ + +#include "cairo-test.h" + +#include + +#define WIDTH 2 +#define HEIGHT 2 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + char *filename; + cairo_surface_t *surface; + + xasprintf (&filename, "%s/reference/%s", + ctx->srcdir, "create-from-png-16bit.base.png"); + + surface = cairo_image_surface_create_from_png (filename); + if (cairo_surface_status (surface)) { + cairo_test_status_t result; + + result = cairo_test_status_from_status (ctx, + cairo_surface_status (surface)); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error reading PNG image %s: %s\n", + filename, + cairo_status_to_string (cairo_surface_status (surface))); + } + + free (filename); + return result; + } + + /* Pretend we modify the surface data (which detaches the PNG mime data) */ + cairo_surface_flush (surface); + cairo_surface_mark_dirty (surface); + + cairo_set_source_surface (cr, surface, 0, 0); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint (cr); + + cairo_surface_destroy (surface); + + free (filename); + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (create_from_png_16bit, + "Tests the creation of an image surface from a 16 bit PNG file", + "png", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/create-from-png-stream.c b/local/recipes/libs/cairo/source/test/create-from-png-stream.c new file mode 100644 index 0000000000..2e9eeeeacf --- /dev/null +++ b/local/recipes/libs/cairo/source/test/create-from-png-stream.c @@ -0,0 +1,119 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl Worth + */ + +#include "cairo-test.h" + +#include +#include +#include + +#define WIDTH 2 +#define HEIGHT 2 + +static cairo_status_t +read_png_from_file (void *closure, unsigned char *data, unsigned int length) +{ + FILE *file = closure; + size_t bytes_read; + + bytes_read = fread (data, 1, length, file); + if (bytes_read != length) + return CAIRO_STATUS_READ_ERROR; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + char *filename; + FILE *file; + cairo_surface_t *surface; + cairo_status_t status; + + xasprintf (&filename, "%s/reference/%s", ctx->srcdir, + "create-from-png-stream.ref.png"); + + file = fopen (filename, "rb"); + if (file == NULL) { + cairo_test_status_t ret; + + ret = CAIRO_TEST_FAILURE; + if (errno == ENOMEM) + ret = cairo_test_status_from_status (ctx, CAIRO_STATUS_NO_MEMORY); + + if (ret != CAIRO_TEST_NO_MEMORY) + cairo_test_log (ctx, "Error: failed to open file: %s\n", filename); + + free (filename); + return ret; + } + + surface = cairo_image_surface_create_from_png_stream (read_png_from_file, + file); + + fclose (file); + + status = cairo_surface_status (surface); + if (status) { + cairo_test_status_t ret; + + cairo_surface_destroy (surface); + + ret = cairo_test_status_from_status (ctx, status); + if (ret != CAIRO_TEST_NO_MEMORY) { + cairo_test_log (ctx, + "Error: failed to create surface from PNG: %s - %s\n", + filename, + cairo_status_to_string (status)); + } + + free (filename); + + return ret; + } + + free (filename); + + /* Pretend we modify the surface data (which detaches the PNG mime data) */ + cairo_surface_flush (surface); + cairo_surface_mark_dirty (surface); + + cairo_set_source_surface (cr, surface, 0, 0); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint (cr); + + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (create_from_png_stream, + "Tests the creation of an image surface from a PNG using a FILE *", + "png", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/create-from-png.c b/local/recipes/libs/cairo/source/test/create-from-png.c new file mode 100644 index 0000000000..2ca1fa2c05 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/create-from-png.c @@ -0,0 +1,320 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl Worth + */ + +#include "cairo-test.h" + +#include + +#define WIDTH 2 +#define HEIGHT 2 + +static cairo_status_t +no_memory_error (void *closure, unsigned char *data, unsigned int size) +{ + return CAIRO_STATUS_NO_MEMORY; +} + +static cairo_status_t +read_error (void *closure, unsigned char *data, unsigned int size) +{ + return CAIRO_STATUS_READ_ERROR; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + char *filename; + cairo_surface_t *surface; + + xasprintf (&filename, "%s/reference/%s", + ctx->srcdir, "create-from-png.ref.png"); + + surface = cairo_image_surface_create_from_png (filename); + if (cairo_surface_status (surface)) { + cairo_test_status_t result; + + result = cairo_test_status_from_status (ctx, + cairo_surface_status (surface)); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error reading PNG image %s: %s\n", + filename, + cairo_status_to_string (cairo_surface_status (surface))); + } + + free (filename); + return result; + } + + /* Pretend we modify the surface data (which detaches the PNG mime data) */ + cairo_surface_flush (surface); + cairo_surface_mark_dirty (surface); + + cairo_set_source_surface (cr, surface, 0, 0); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint (cr); + + cairo_surface_destroy (surface); + + free (filename); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + char *filename; + char *path; + cairo_surface_t *surface; + cairo_status_t status; + cairo_test_status_t result = CAIRO_TEST_SUCCESS; + + surface = cairo_image_surface_create_from_png ("___THIS_FILE_DOES_NOT_EXIST___"); + if (cairo_surface_status (surface) != CAIRO_STATUS_FILE_NOT_FOUND) { + result = cairo_test_status_from_status (ctx, + cairo_surface_status (surface)); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error: expected \"file not found\", but got: %s\n", + cairo_status_to_string (cairo_surface_status (surface))); + } + } + cairo_surface_destroy (surface); + if (result != CAIRO_TEST_SUCCESS) + return result; + + surface = cairo_image_surface_create_from_png_stream (no_memory_error, NULL); + if (cairo_surface_status (surface) != CAIRO_STATUS_NO_MEMORY) { + result = cairo_test_status_from_status (ctx, + cairo_surface_status (surface)); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error: expected \"out of memory\", but got: %s\n", + cairo_status_to_string (cairo_surface_status (surface))); + } + } + cairo_surface_destroy (surface); + if (result != CAIRO_TEST_SUCCESS) + return result; + + surface = cairo_image_surface_create_from_png_stream (read_error, NULL); + if (cairo_surface_status (surface) != CAIRO_STATUS_READ_ERROR) { + result = cairo_test_status_from_status (ctx, + cairo_surface_status (surface)); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error: expected \"read error\", but got: %s\n", + cairo_status_to_string (cairo_surface_status (surface))); + } + } + cairo_surface_destroy (surface); + if (result != CAIRO_TEST_SUCCESS) + return result; + + /* cheekily test error propagation from the user write funcs as well ... */ + xasprintf (&path, "%s/reference", ctx->srcdir); + xasprintf (&filename, "%s/%s", path, "create-from-png.ref.png"); + + surface = cairo_image_surface_create_from_png (filename); + if (cairo_surface_status (surface)) { + result = cairo_test_status_from_status (ctx, + cairo_surface_status (surface)); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error reading PNG image %s: %s\n", + filename, + cairo_status_to_string (cairo_surface_status (surface))); + } + } else { + status = cairo_surface_write_to_png_stream (surface, + (cairo_write_func_t) no_memory_error, + NULL); + if (status != CAIRO_STATUS_NO_MEMORY) { + result = cairo_test_status_from_status (ctx, status); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error: expected \"out of memory\", but got: %s\n", + cairo_status_to_string (status)); + } + } + + status = cairo_surface_write_to_png_stream (surface, + (cairo_write_func_t) read_error, + NULL); + if (status != CAIRO_STATUS_READ_ERROR) { + result = cairo_test_status_from_status (ctx, status); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error: expected \"read error\", but got: %s\n", + cairo_status_to_string (status)); + } + } + + /* and check that error has not propagated to the surface */ + if (cairo_surface_status (surface)) { + result = cairo_test_status_from_status (ctx, + cairo_surface_status (surface)); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error: user write error propagated to surface: %s", + cairo_status_to_string (cairo_surface_status (surface))); + } + } + } + cairo_surface_destroy (surface); + free (filename); + if (result != CAIRO_TEST_SUCCESS) + return result; + + /* check that loading alpha/opaque PNGs generate the correct surfaces */ + /* TODO: Avoid using target-specific references as sample images */ + xasprintf (&filename, "%s/%s", path, "create-from-png.alpha.ref.png"); + surface = cairo_image_surface_create_from_png (filename); + if (cairo_surface_status (surface)) { + result = cairo_test_status_from_status (ctx, + cairo_surface_status (surface)); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error reading PNG image %s: %s\n", + filename, + cairo_status_to_string (cairo_surface_status (surface))); + } + } else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_ARGB32) { + cairo_test_log (ctx, "Error reading PNG image %s: did not create an ARGB32 image\n", + filename); + result = CAIRO_TEST_FAILURE; + } + free (filename); + cairo_surface_destroy (surface); + if (result != CAIRO_TEST_SUCCESS) + return result; + + xasprintf (&filename, "%s/%s", path, "create-from-png.ref.png"); + surface = cairo_image_surface_create_from_png (filename); + if (cairo_surface_status (surface)) { + result = cairo_test_status_from_status (ctx, + cairo_surface_status (surface)); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error reading PNG image %s: %s\n", + filename, + cairo_status_to_string (cairo_surface_status (surface))); + } + } else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_RGB24) { + cairo_test_log (ctx, "Error reading PNG image %s: did not create an RGB24 image\n", + filename); + result = CAIRO_TEST_FAILURE; + } + free (filename); + cairo_surface_destroy (surface); + if (result != CAIRO_TEST_SUCCESS) + return result; + + /* check paletted PNGs */ + /* TODO: Avoid using target-specific references as sample images */ + xasprintf (&filename, "%s/%s", path, "create-from-png.indexed-alpha.ref.png"); + surface = cairo_image_surface_create_from_png (filename); + if (cairo_surface_status (surface)) { + result = cairo_test_status_from_status (ctx, + cairo_surface_status (surface)); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error reading PNG image %s: %s\n", + filename, + cairo_status_to_string (cairo_surface_status (surface))); + } + } else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_ARGB32) { + cairo_test_log (ctx, "Error reading PNG image %s: did not create an ARGB32 image\n", + filename); + result = CAIRO_TEST_FAILURE; + } + free (filename); + cairo_surface_destroy (surface); + if (result != CAIRO_TEST_SUCCESS) + return result; + + /* TODO: Avoid using target-specific references as sample images */ + xasprintf (&filename, "%s/%s", path, "create-from-png.indexed.ref.png"); + surface = cairo_image_surface_create_from_png (filename); + if (cairo_surface_status (surface)) { + result = cairo_test_status_from_status (ctx, + cairo_surface_status (surface)); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error reading PNG image %s: %s\n", + filename, + cairo_status_to_string (cairo_surface_status (surface))); + } + } else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_RGB24) { + cairo_test_log (ctx, "Error reading PNG image %s: did not create an RGB24 image\n", + filename); + result = CAIRO_TEST_FAILURE; + } + free (filename); + cairo_surface_destroy (surface); + if (result != CAIRO_TEST_SUCCESS) + return result; + + /* check grayscale PNGs */ + /* TODO: Avoid using target-specific references as sample images */ + xasprintf (&filename, "%s/%s", path, "create-from-png.gray-alpha.ref.png"); + surface = cairo_image_surface_create_from_png (filename); + if (cairo_surface_status (surface)) { + result = cairo_test_status_from_status (ctx, + cairo_surface_status (surface)); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error reading PNG image %s: %s\n", + filename, + cairo_status_to_string (cairo_surface_status (surface))); + } + } else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_ARGB32) { + cairo_test_log (ctx, "Error reading PNG image %s: did not create an ARGB32 image\n", + filename); + result = CAIRO_TEST_FAILURE; + } + free (filename); + cairo_surface_destroy (surface); + if (result != CAIRO_TEST_SUCCESS) + return result; + + /* TODO: Avoid using target-specific references as sample images */ + xasprintf (&filename, "%s/%s", path, "create-from-png.gray.ref.png"); + surface = cairo_image_surface_create_from_png (filename); + if (cairo_surface_status (surface)) { + result = cairo_test_status_from_status (ctx, + cairo_surface_status (surface)); + if (result == CAIRO_TEST_FAILURE) { + cairo_test_log (ctx, "Error reading PNG image %s: %s\n", + filename, + cairo_status_to_string (cairo_surface_status (surface))); + } + } else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_RGB24) { + cairo_test_log (ctx, "Error reading PNG image %s: did not create an RGB24 image\n", + filename); + result = CAIRO_TEST_FAILURE; + } + free (filename); + cairo_surface_destroy (surface); + + free (path); + + return result; +} + +CAIRO_TEST (create_from_png, + "Tests the creation of an image surface from a PNG file", + "png", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + preamble, draw) diff --git a/local/recipes/libs/cairo/source/test/create-regions.c b/local/recipes/libs/cairo/source/test/create-regions.c new file mode 100644 index 0000000000..749595a445 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/create-regions.c @@ -0,0 +1,435 @@ +/* + * Copyright © 2023 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "config.h" + +#include +#include +#include +#include + +#if CAIRO_HAS_PDF_SURFACE && CAIRO_HAS_PS_SURFACE && CAIRO_HAS_SVG_SURFACE + +#include +#include +#include + +#ifdef HAVE_UNISTD_H +#include +#include +#endif + +#include "cairo-test.h" +#include "buffer-diff.h" + +/* This test is to ensure that _cairo_recording_surface_replay_and_create_regions() + * works with a recording surface source re-used for multiple paginated surfaces. + * The prior use of the source with a paginated surface should not affect the region + * analysis on subsequent surfaces. + * + * If test output should only contain fallback images for unsupported + * operations. If the recording surface is incorrectly re-using the + * analysis from a different target, some operations may be missing + * from the ouput (recording surface marked the operation as supported + * when it is not) or some operations may be have fallbacks for + * natively suported opetions (recording surface marked a supported + * operation as unsupprted). + * + * To create ref images, run the test for one target at a time to + * prevent re-use of the recording surface for different targets. + */ + + +#define SIZE 40 +#define PAD 25 +#define PAGE_SIZE (SIZE*3 + PAD*4) + +/* Apply a slight rotation and use a very low fallback resolution to + * ensure fallback images are apparent in the output. */ +#define ROTATE 5 +#define FALLBACK_PPI 18 + +static void +create_recordings (cairo_operator_t op, + cairo_surface_t **recording, + cairo_surface_t **recording_group) +{ + *recording = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + cairo_t *cr = cairo_create (*recording); + + cairo_rotate (cr, ROTATE*M_PI/180.0); + + cairo_rectangle (cr, 0, 0, SIZE*3.0/4.0, SIZE*3.0/4.0); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill (cr); + + cairo_set_operator (cr, op); + + cairo_rectangle (cr, SIZE/4.0, SIZE/4.0, SIZE*3.0/4.0, SIZE*3.0/4.0); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_fill (cr); + + cairo_destroy (cr); + + *recording_group = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + cr = cairo_create (*recording_group); + + cairo_set_source_surface (cr, *recording, 0, 0); + cairo_paint (cr); + + cairo_destroy (cr); +} + +static void +_xunlink (const cairo_test_context_t *ctx, const char *pathname) +{ + if (unlink (pathname) < 0 && errno != ENOENT) { + cairo_test_log (ctx, "Error: Cannot remove %s: %s\n", + pathname, strerror (errno)); + exit (1); + } +} + +static cairo_bool_t +check_result (cairo_test_context_t *ctx, + const cairo_boilerplate_target_t *target, + const char *test_name, + const char *base_name, + cairo_surface_t *surface) +{ + const char *format; + char *ref_name; + char *png_name; + char *diff_name; + cairo_surface_t *test_image, *ref_image, *diff_image; + buffer_diff_result_t result; + cairo_status_t status; + cairo_bool_t ret; + + if (target->finish_surface != NULL) { + status = target->finish_surface (surface); + if (status) { + cairo_test_log (ctx, "Error: Failed to finish surface: %s\n", + cairo_status_to_string (status)); + cairo_surface_destroy (surface); + return FALSE; + } + } + + xasprintf (&png_name, "%s.out.png", base_name); + xasprintf (&diff_name, "%s.diff.png", base_name); + + test_image = target->get_image_surface (surface, 0, PAGE_SIZE, PAGE_SIZE); + if (cairo_surface_status (test_image)) { + cairo_test_log (ctx, "Error: Failed to extract page: %s\n", + cairo_status_to_string (cairo_surface_status (test_image))); + cairo_surface_destroy (test_image); + free (png_name); + free (diff_name); + return FALSE; + } + + _xunlink (ctx, png_name); + status = cairo_surface_write_to_png (test_image, png_name); + if (status) { + cairo_test_log (ctx, "Error: Failed to write output image: %s\n", + cairo_status_to_string (status)); + cairo_surface_destroy (test_image); + free (png_name); + free (diff_name); + return FALSE; + } + + format = cairo_boilerplate_content_name (target->content); + ref_name = cairo_test_reference_filename (ctx, + base_name, + test_name, + target->name, + target->basename, + format, + CAIRO_TEST_REF_SUFFIX, + CAIRO_TEST_PNG_EXTENSION); + if (ref_name == NULL) { + cairo_test_log (ctx, "Error: Cannot find reference image for %s\n", + base_name); + cairo_surface_destroy (test_image); + free (png_name); + free (diff_name); + return FALSE; + } + + ref_image = cairo_test_get_reference_image (ctx, ref_name, + target->content == CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED); + if (cairo_surface_status (ref_image)) { + cairo_test_log (ctx, "Error: Cannot open reference image for %s: %s\n", + ref_name, + cairo_status_to_string (cairo_surface_status (ref_image))); + cairo_surface_destroy (ref_image); + cairo_surface_destroy (test_image); + free (png_name); + free (diff_name); + free (ref_name); + return FALSE; + } + + diff_image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + PAGE_SIZE, PAGE_SIZE); + + ret = TRUE; + status = image_diff (ctx, + test_image, ref_image, diff_image, + &result); + _xunlink (ctx, diff_name); + if (status) { + cairo_test_log (ctx, "Error: Failed to compare images: %s\n", + cairo_status_to_string (status)); + ret = FALSE; + } else if (image_diff_is_failure (&result, target->error_tolerance)) + { + ret = FALSE; + + status = cairo_surface_write_to_png (diff_image, diff_name); + if (status) { + cairo_test_log (ctx, "Error: Failed to write differences image: %s\n", + cairo_status_to_string (status)); + } + } + + cairo_surface_destroy (test_image); + cairo_surface_destroy (diff_image); + free (png_name); + free (diff_name); + free (ref_name); + + return ret; +} + +#define TEST_ROWS 2 +#define TEST_COLS 3 + +static void +draw (cairo_t *cr, cairo_surface_t *recordings[TEST_ROWS][TEST_COLS]) +{ + cairo_translate (cr, PAD, PAD); + for (int row = 0; row < TEST_ROWS; row++) { + cairo_save (cr); + for (int col = 0; col < TEST_COLS; col++) { + cairo_save (cr); + cairo_set_source_surface (cr, recordings[row][col], 0, 0); + cairo_paint (cr); + cairo_restore (cr); + cairo_translate (cr, SIZE + PAD, 0); + } + cairo_restore (cr); + cairo_translate (cr, 0, SIZE + PAD); + } +} + +#define NUM_TEST_SURFACES 3 + +typedef struct _test_surface { + const cairo_boilerplate_target_t *target; + cairo_surface_t *surface; + char *base_name; + void *closure; +} test_surface_t; + +static test_surface_t test_surfaces[NUM_TEST_SURFACES]; + +static void +init_test_surfaces() +{ + memset (test_surfaces, 0, sizeof (*test_surfaces)); + test_surfaces[0].surface = cairo_pdf_surface_create_for_stream (NULL, NULL, PAGE_SIZE, PAGE_SIZE); + test_surfaces[1].surface = cairo_ps_surface_create_for_stream (NULL, NULL, PAGE_SIZE, PAGE_SIZE); + test_surfaces[2].surface = cairo_svg_surface_create_for_stream (NULL, NULL, PAGE_SIZE, PAGE_SIZE); +} + +static void +add_test_surface (const cairo_boilerplate_target_t *target, + cairo_surface_t *surface, + char *base_name, + void *closure) +{ + for (int i = 0; i < NUM_TEST_SURFACES; i++) { + if (cairo_surface_get_type (test_surfaces[i].surface) == cairo_surface_get_type (surface)) { + cairo_surface_destroy (test_surfaces[i].surface); + test_surfaces[i].target = target; + test_surfaces[i].surface = surface; + test_surfaces[i].base_name = base_name; + test_surfaces[i].closure = closure; + break; + } + } +} + +static void +destroy_test_surfaces() +{ + for (int i = 0; i < NUM_TEST_SURFACES; i++) { + cairo_surface_destroy (test_surfaces[i].surface); + if (test_surfaces[i].target && test_surfaces[i].target->cleanup) + test_surfaces[i].target->cleanup (test_surfaces[i].closure); + if (test_surfaces[i].base_name) + free (test_surfaces[i].base_name); + } +} + + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_t *cr; + cairo_test_status_t ret = CAIRO_TEST_UNTESTED; + unsigned int i; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + cairo_surface_t *recordings[TEST_ROWS][TEST_COLS]; + const char *test_name = "create-regions"; + char *base_name; + + /* Each row displays three recordings. One with operations + * supported by all paginated surfaces (OVER), one with operations + * supported by PDF but not PS or SVG surfaces (DIFFERENCE), and + * one with operations supported by SVG but not PDF or PS + * (DEST_XOR). + * + * The recordings for the first row is a single recording. The + * recordings for the second row contains the first row recording + * inside another recording to test the use of cloned recording + * surfaces. + * + * We are looking to see that fallback images are only used for + * unsupported operations. + */ + create_recordings (CAIRO_OPERATOR_OVER, &recordings[0][0], &recordings[1][0]); + create_recordings (CAIRO_OPERATOR_DIFFERENCE, &recordings[0][1], &recordings[1][1]); + create_recordings (CAIRO_OPERATOR_XOR, &recordings[0][2], &recordings[1][2]); + + init_test_surfaces(); + for (i = 0; i < ctx->num_targets; i++) { + const cairo_boilerplate_target_t *target = ctx->targets_to_test[i]; + cairo_surface_t *surface = NULL; + void *closure; + const char *format; + + /* This test only works on surfaces that support fine grained fallbacks */ + if (! (target->expected_type == CAIRO_SURFACE_TYPE_PDF || + target->expected_type == CAIRO_SURFACE_TYPE_PS || + target->expected_type ==CAIRO_SURFACE_TYPE_SVG)) + continue; + + if (! cairo_test_is_target_enabled (ctx, target->name)) + continue; + + if (ret == CAIRO_TEST_UNTESTED) + ret = CAIRO_TEST_SUCCESS; + + format = cairo_boilerplate_content_name (target->content); + base_name = NULL; + xasprintf (&base_name, "%s/%s.%s.%s", + path, test_name, + target->name, + format); + + surface = (target->create_surface) (base_name, + target->content, + PAGE_SIZE, PAGE_SIZE, + PAGE_SIZE, PAGE_SIZE, + CAIRO_BOILERPLATE_MODE_TEST, + &closure); + if (surface == NULL || cairo_surface_status (surface)) { + cairo_test_log (ctx, "Failed to generate surface: %s.%s\n", + target->name, + format); + ret = CAIRO_TEST_FAILURE; + break; + } + + cairo_surface_set_fallback_resolution (surface, FALLBACK_PPI, FALLBACK_PPI); + add_test_surface (target, surface, base_name, closure); + } + + for (int i = 0; i < NUM_TEST_SURFACES; i++) { + cairo_status_t status; + + if (test_surfaces[i].target != NULL) { + cairo_test_log (ctx, + "Testing create-regions with %s target\n", + test_surfaces[i].target->name); + printf ("%s:\t", test_surfaces[i].base_name); + fflush (stdout); + } + + cr = cairo_create (test_surfaces[i].surface); + + draw (cr, recordings); + + status = cairo_status (cr); + cairo_destroy (cr); + cairo_surface_finish (test_surfaces[i].surface); + + if (test_surfaces[i].target) { + cairo_bool_t pass = FALSE; + if (status) { + cairo_test_log (ctx, "Error: Failed to create target surface: %s\n", + cairo_status_to_string (status)); + ret = CAIRO_TEST_FAILURE; + } else { + /* extract the image and compare it to our reference */ + if (! check_result (ctx, test_surfaces[i].target, test_name, test_surfaces[i].base_name, test_surfaces[i].surface)) + ret = CAIRO_TEST_FAILURE; + else + pass = TRUE; + } + + if (pass) { + printf ("PASS\n"); + } else { + printf ("FAIL\n"); + } + fflush (stdout); + } + } + + destroy_test_surfaces(); + + for (int row = 0; row < TEST_ROWS; row++) { + for (int col = 0; col < TEST_COLS; col++) { + cairo_surface_destroy (recordings[row][col]); + } + } + + return ret; +} + +CAIRO_TEST (create_regions, + "Check region analysis when re-used with different surfaces", + "fallback", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) + +#endif /* CAIRO_HAS_PDF_SURFACE && CAIRO_HAS_PS_SURFACE && CAIRO_HAS_SVG_SURFACE */ diff --git a/local/recipes/libs/cairo/source/test/culled-glyphs.c b/local/recipes/libs/cairo/source/test/culled-glyphs.c new file mode 100644 index 0000000000..eaa462b1c2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/culled-glyphs.c @@ -0,0 +1,62 @@ +/* + * Copyright 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const char *text = +"This needs to be a very long string, wider than the surface, and yet wider." +"Ideally it should overflow the stack buffers, but do you really want to read " +"a message that long. No. So we compromise with around 300 glyphs that is " +"long enough to trigger the conditions as stated in " +"https://lists.cairographics.org/archives/cairo/2008-December/015976.html. " +"Happy now?"; + cairo_text_extents_t extents; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_set_font_size (cr, 16); + cairo_text_extents (cr, text, &extents); + cairo_move_to (cr, -extents.width/2, 18); + cairo_show_text (cr, text); + + /* XXX we should exercise cairo_show_text_glyphs() as well, + * and CAIRO_TEXT_CLUSTER_BACKWARDS + */ + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (culled_glyphs, + "Tests culling of glyphs and text clusters", + "glyphs", /* keywords */ + NULL, /* requirements */ + 20, 20, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/curve-to-as-line-to.c b/local/recipes/libs/cairo/source/test/curve-to-as-line-to.c new file mode 100644 index 0000000000..07eb005f50 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/curve-to-as-line-to.c @@ -0,0 +1,95 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define SIZE 30 + +/* At one point, an optimization was proposed for cairo in which a + * curve_to would be optimized as a line_to. The initial (buggy) + * implementation verified that the slopes of several segments of the + * spline's control polygon were identical, but left open the + * possibility of an anti-parallel slope for one segment. + * + * For example, given a spline with collinear control points (A,B,C,D) + * positioned as follows: + * + * C--A--B--D + * + * The code verified identical slopes for AB, CD, and AD. The missing + * check for the BC segment allowed it to be anti-parallel to the + * others as above, and hence invalid to replace this spline with the + * AD line segment. + */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_line_width (cr, 1.0); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */ + + cairo_translate (cr, 0, 1.0); + + /* The CABD spline as described above. We ensure that the spline + * folds over on itself outside the bounds of the image to avoid + * the reference image having the curved portion of that fold, + * (which would just be harder to match in all the backends than + * we really want). */ + cairo_move_to (cr, + 10.5, 0.5); + cairo_curve_to (cr, + 11.5, 0.5, + -25.0, 0.5, + 31.0, 0.5); + + cairo_stroke (cr); + + cairo_translate (cr, 0, 2.0); + + /* A reflected version: DBAC */ + cairo_move_to (cr, + 19.5, 0.5); + + cairo_curve_to (cr, + 18.5, 0.5, + 55.0, 0.5, + -1.0, 0.5); + + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (curve_to_as_line_to, + "Test optimization treating curve_to as line_to", + "path", /* keywords */ + NULL, /* requirements */ + 30, + 5, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/dash-caps-joins.c b/local/recipes/libs/cairo/source/test/dash-caps-joins.c new file mode 100644 index 0000000000..ace27e9b9a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/dash-caps-joins.c @@ -0,0 +1,104 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +/* Test case for bug #4409: + * + * Dashes are missing initial caps + * https://bugs.freedesktop.org/show_bug.cgi?id=4409 + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 10. +#define SIZE (5 * LINE_WIDTH) +#define PAD (2 * LINE_WIDTH) + +static void +make_path (cairo_t *cr) +{ + cairo_move_to (cr, 0., 0.); + cairo_rel_line_to (cr, 0., SIZE); + cairo_rel_line_to (cr, SIZE, 0.); + cairo_close_path (cr); + + cairo_move_to (cr, 2 * LINE_WIDTH, 0.); + cairo_rel_line_to (cr, 3 * LINE_WIDTH, 0.); + cairo_rel_line_to (cr, 0., 3 * LINE_WIDTH); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double dash[] = {LINE_WIDTH, 1.5 * LINE_WIDTH}; + double dash_offset = -2 * LINE_WIDTH; + int i; + + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + for (i=0; i<2; i++) { + cairo_save (cr); + cairo_set_line_width (cr, LINE_WIDTH); + cairo_set_dash (cr, dash, ARRAY_LENGTH (dash), dash_offset); + + cairo_translate (cr, PAD, PAD); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_stroke (cr); + + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_stroke (cr); + + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_stroke (cr); + + cairo_restore (cr); + cairo_translate (cr, 0., SIZE + PAD); + dash_offset = 0; + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (dash_caps_joins, + "Test caps and joins when dashing", + "dash, stroke", /* keywords */ + NULL, /* requirements */ + 3 * (PAD + SIZE) + PAD, + PAD + SIZE + PAD + SIZE + PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/dash-curve.c b/local/recipes/libs/cairo/source/test/dash-curve.c new file mode 100644 index 0000000000..c319980126 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/dash-curve.c @@ -0,0 +1,66 @@ +/* + * Copyright © 2007 Jeff Smith + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Jeff Smith not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Jeff Smith makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * JEFF SMITH DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL JEFF SMITH BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Jeff Smith + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double dashes[2] = {20, 20}; + int a=0, b=0, c=0; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + for (a=0; a<4; a++) + for (b=0; b<5; b++) + for (c=0; c<5; c++) { + cairo_move_to (cr, ((b*5)+c)*60+10, a*60+10); + cairo_rel_curve_to (cr, + 0, b*10, + 0, b*10, + c*10, b*10); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_set_line_width (cr, 8); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_dash (cr, dashes, 2, a*10); + cairo_stroke_preserve (cr); + + cairo_set_source_rgb (cr, 0, 0.5, 1); + cairo_set_line_width (cr, 2); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_dash (cr, 0, 0, 0); + cairo_stroke (cr); + } + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (dash_curve, + "Tries to explore the state space of the dashing code along curves", + "dash, stroke", /* keywords */ + NULL, /* requirements */ + 25*60, 4*60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/dash-infinite-loop.c b/local/recipes/libs/cairo/source/test/dash-infinite-loop.c new file mode 100644 index 0000000000..98ab62fe95 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/dash-infinite-loop.c @@ -0,0 +1,83 @@ +/* + * Copyright © 2009 M Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: M Joonas Pihlaja + */ + +#include "cairo-test.h" + +/* When faced with very small dash lengths the stroker is liable to + * get stuck in an infinite loop when advancing the dash offset. This + * test attempts to hit each of the locations in the stroker code + * where the dash offset is advanced in a loop. + * + * Reported to the cairo mailing list by Hans Breuer. + * https://lists.cairographics.org/archives/cairo/2009-June/017506.html + */ + +#define EPS 1e-30 +/* This should be comfortably smaller than the unit epsilon of the + * floating point type used to advance the dashing, yet not small + * enough that it underflows to zero. 1e-30 works to foil up to 80 + * bit extended precision arithmetic. We want to avoid zero dash + * lengths because those trigger special processing in the stroker. */ + +static void +do_dash (cairo_t *cr, double dx, double dy, double offset) +{ + /* Set the dash pattern to be predominantly ON so that we can + * create a reference image by just ignoring the dashing. */ + static double dash[] = { EPS, EPS/512 }; + cairo_set_dash (cr, dash, 2, offset); + cairo_move_to (cr, 10, 10); + cairo_rel_line_to (cr, dx, dy); + cairo_stroke (cr); + cairo_translate (cr, dx, dy); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + (void)width; (void)height; + + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0,0,0); + + cairo_set_line_width (cr, 10); + + /* The following calls will wedge in various places that try + * to advance the dashing in a loop inside the stroker. */ + do_dash (cr, 30, 30, 0); /* _cairo_stroker_line_to_dashed */ + do_dash (cr, 30, 0, 0); /* _cairo_rectilinear_stroker_line_to_dashed */ + do_dash (cr, 30, 30, 1); /* _cairo_stroker_dash_start */ + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (dash_infinite_loop, + "Test dashing with extremely small dash lengths.", + "dash", + NULL, + 100, 100, + NULL, draw); diff --git a/local/recipes/libs/cairo/source/test/dash-no-dash.c b/local/recipes/libs/cairo/source/test/dash-no-dash.c new file mode 100644 index 0000000000..e03094ad46 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/dash-no-dash.c @@ -0,0 +1,87 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" +#include + +#define PAD 1 +#define LINE_WIDTH 2 +#define HEIGHT (PAD + 4 * (LINE_WIDTH + PAD)) +#define WIDTH 16 + +static void +line (cairo_t *cr) +{ + cairo_move_to (cr, PAD, 0.0); + cairo_line_to (cr, WIDTH - PAD, 0.0); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double dash = 2.0; + + /* We draw in black, so paint white first. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + + cairo_translate (cr, 0.0, PAD + LINE_WIDTH / 2); + + /* First draw a solid line... */ + line (cr); + cairo_stroke (cr); + + cairo_translate (cr, 0.0, LINE_WIDTH + PAD); + + /* then a dashed line... */ + cairo_set_dash (cr, &dash, 1, 0.0); + line (cr); + cairo_stroke (cr); + + cairo_translate (cr, 0.0, LINE_WIDTH + PAD); + + /* back to solid... */ + cairo_set_dash (cr, NULL, 0, 0.0); + line (cr); + cairo_stroke (cr); + + cairo_translate (cr, 0.0, LINE_WIDTH + PAD); + + /* and finally, back to dashed. */ + cairo_set_dash (cr, &dash, 1, 0.0); + line (cr); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (dash_no_dash, + "Tests that we can actually turn dashing on and off again", + "dash, stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/dash-offset-negative.c b/local/recipes/libs/cairo/source/test/dash-offset-negative.c new file mode 100644 index 0000000000..8766cc5762 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/dash-offset-negative.c @@ -0,0 +1,100 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Owen Taylor + */ + +#include "cairo-test.h" + +#define IMAGE_WIDTH 19 +#define IMAGE_HEIGHT 19 + +/* Basic test of dashed strokes, including a test for the negative + * dash offset bug: + * + * https://bugs.freedesktop.org/show_bug.cgi?id=2729 + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double dashes[] = { 1 }; + + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_set_line_width (cr, 2); + + /* Basic 1-1 dash pattern */ + cairo_set_dash (cr, dashes, 1, 0.); + + cairo_move_to (cr, 1, 2); + cairo_line_to (cr, 18, 2); + cairo_stroke (cr); + + /* Adjust path by 0.5. Ideally this would give a constant 50% + * gray, (but does not due to the location of the regular sample + * grid points. */ + cairo_move_to (cr, 1.5, 5); + cairo_line_to (cr, 18., 5); + cairo_stroke (cr); + + /* Offset dash by 0.5, rather than the path */ + cairo_set_dash (cr, dashes, 1, 0.5); + + cairo_move_to (cr, 1, 8); + cairo_line_to (cr, 18, 8); + cairo_stroke (cr); + + /* Now, similar tests with negative dash offsets. */ + + /* Basic 1-1 dash pattern dashing */ + cairo_set_dash (cr, dashes, 1, -4); + + cairo_move_to (cr, 1, 11); + cairo_line_to (cr, 18, 11); + cairo_stroke (cr); + + /* Adjust path by 0.5 */ + cairo_move_to (cr, 1.5, 14); + cairo_line_to (cr, 18., 14); + cairo_stroke (cr); + + /* Offset dash by 0.5 */ + cairo_set_dash (cr, dashes, 1, -3.5); + + cairo_move_to (cr, 1, 17); + cairo_line_to (cr, 18, 17); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (dash_offset_negative, + "Tests cairo_set_dash with a negative offset", + "dash, stroke", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/dash-offset.c b/local/recipes/libs/cairo/source/test/dash-offset.c new file mode 100644 index 0000000000..f4269ee136 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/dash-offset.c @@ -0,0 +1,83 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2009 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +/* Lengths of the dashes of the dash patterns */ +static const double dashes[] = { 2, 2, 4, 4 }; +/* Dash offset in userspace units + * They always grow by 2, so the dash pattern is + * should be shifted by the same amount each time */ +static const double frac_offset[] = { 0, 2, 4, 6 }; +/* Dash offset relative to the whole dash pattern + * This corresponds to the non-inverted part only if + * the dash pattern has odd length, so the expected result + * is the same for every int_offset if the pattern has + * even length, and inverted each time (or shifted by half + * period, which is the same) if the pattern has odd length. */ +static const double int_offset[] = { -2, -1, 0, 1, 2 }; + +#define PAD 6 +#define STROKE_LENGTH 32 +#define IMAGE_WIDTH (PAD + (STROKE_LENGTH + PAD) * ARRAY_LENGTH (dashes)) +#define IMAGE_HEIGHT (PAD + PAD * ARRAY_LENGTH (int_offset) + PAD * ARRAY_LENGTH (frac_offset) * ARRAY_LENGTH (int_offset)) + + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double total; + size_t i, j, k; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_line_width (cr, 2); + + total = 0.0; + for (k = 0; k < ARRAY_LENGTH (dashes); ++k) { + total += dashes[k]; + for (i = 0; i < ARRAY_LENGTH (frac_offset); ++i) { + for (j = 0; j < ARRAY_LENGTH (int_offset); ++j) { + cairo_set_dash (cr, dashes, k + 1, frac_offset[i] + total * int_offset[j]); + cairo_move_to (cr, (STROKE_LENGTH + PAD) * k + PAD, PAD * (i + j + ARRAY_LENGTH (frac_offset) * j + 1)); + cairo_line_to (cr, (STROKE_LENGTH + PAD) * (k + 1), PAD * (i + j + ARRAY_LENGTH (frac_offset) * j + 1)); + cairo_stroke (cr); + } + } + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (dash_offset, + "Tests dashes of different length with various offsets", + "stroke, dash", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/dash-scale.c b/local/recipes/libs/cairo/source/test/dash-scale.c new file mode 100644 index 0000000000..fd51702553 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/dash-scale.c @@ -0,0 +1,120 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 8. +#define SIZE (5 * LINE_WIDTH) +#define PAD (2 * LINE_WIDTH) + +static void +make_path (cairo_t *cr) +{ + cairo_move_to (cr, 0., 0.); + cairo_rel_line_to (cr, 0., SIZE); + cairo_rel_line_to (cr, SIZE, 0.); + cairo_close_path (cr); + + cairo_move_to (cr, 2 * LINE_WIDTH, 0.); + cairo_rel_line_to (cr, 3 * LINE_WIDTH, 0.); + cairo_rel_line_to (cr, 0., 3 * LINE_WIDTH); +} + +static void +draw_three_shapes (cairo_t *cr) +{ + cairo_save (cr); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_stroke (cr); + + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_stroke (cr); + + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_stroke (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double dash[] = {1.5 * LINE_WIDTH}; + + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_translate (cr, PAD, PAD); + + cairo_set_dash (cr, dash, ARRAY_LENGTH (dash), - 2 * LINE_WIDTH); + cairo_set_line_width (cr, LINE_WIDTH); + draw_three_shapes (cr); + + cairo_translate (cr, 0, SIZE + 2 * PAD); + + cairo_save (cr); + { + cairo_set_dash (cr, dash, ARRAY_LENGTH (dash), - 2 * LINE_WIDTH); + cairo_set_line_width (cr, LINE_WIDTH); + cairo_scale (cr, 1, 2); + draw_three_shapes (cr); + } + cairo_restore (cr); + + cairo_translate (cr, 0, 2 * (SIZE + PAD)); + + cairo_save (cr); + { + cairo_scale (cr, 1, 2); + cairo_set_dash (cr, dash, ARRAY_LENGTH (dash), - 2 * LINE_WIDTH); + cairo_set_line_width (cr, LINE_WIDTH); + draw_three_shapes (cr); + } + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (dash_scale, + "Test interactions of cairo_set_dash and cairo_scale, (in particular with a non-uniformly scaled pen)", + "dash, stroke, transform", /* keywords */ + NULL, /* requirements */ + 3 * (PAD + SIZE) + PAD, + PAD + 5 * SIZE + 2 * (2 * PAD) + PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/dash-state.c b/local/recipes/libs/cairo/source/test/dash-state.c new file mode 100644 index 0000000000..5276aeaa64 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/dash-state.c @@ -0,0 +1,64 @@ +/* + * Copyright © 2007 Jeff Smith + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Jeff Smith not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Jeff Smith makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * JEFF SMITH DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL JEFF SMITH BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Jeff Smith + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double dashes[2] = {20, 20}; + int a=0, b=0, c=0; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + for (a=0; a<4; a++) + for (b=0; b<5; b++) + for (c=0; c<5; c++) { + cairo_move_to (cr, ((b*5)+c)*60+10, a*60+10); + cairo_rel_line_to (cr, 0, b*10); + cairo_rel_line_to (cr, c*10, 0); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_set_line_width (cr, 8); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_dash (cr, dashes, 2, a*10); + cairo_stroke_preserve (cr); + + cairo_set_source_rgb (cr, 0, 0.5, 1); + cairo_set_line_width (cr, 2); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_dash (cr, 0, 0, 0); + cairo_stroke (cr); + } + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (dash_state, + "Tries to explore the state space of the dashing code", + "dash, stroke", /* keywords */ + NULL, /* requirements */ + 25*60, 4*60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/dash-zero-length.c b/local/recipes/libs/cairo/source/test/dash-zero-length.c new file mode 100644 index 0000000000..5ab944bb70 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/dash-zero-length.c @@ -0,0 +1,110 @@ +/* + * Copyright © 2006 Jeff Muizelaar + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Jeff Muizelaar. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Jeff Muizelaar. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * JEFF MUIZELAAR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL JEFF MUIZELAAR BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Jeff Muizelaar + */ + +#include "cairo-test.h" + +#define IMAGE_WIDTH 19 +#define IMAGE_HEIGHT 61 + +/* A test of the two extremes of dashing: a solid line + * and an invisible one. Also test that capping works + * on invisible lines. + */ + +static void +draw_dash (cairo_t *cr, double *dash, int num_dashes) +{ + cairo_set_dash (cr, dash, num_dashes, 0.0); + cairo_move_to (cr, 1, 2); + cairo_line_to (cr, 18, 2); + cairo_stroke (cr); + cairo_translate (cr, 0, 3); +} +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + static double solid_line[] = { 4, 0 }; + static double invisible_line[] = { 0, 4 }; + static double dotted_line[] = { 0, 6 }; + static double zero_1_of_3[] = { 0, 2, 3 }; + static double zero_2_of_3[] = { 1, 0, 3 }; + static double zero_3_of_3[] = { 1, 2, 0 }; + static double zero_1_of_4[] = { 0, 2, 3, 4 }; + static double zero_2_of_4[] = { 1, 0, 3, 4 }; + static double zero_3_of_4[] = { 1, 2, 0, 4 }; + static double zero_4_of_4[] = { 1, 2, 3, 0 }; + static double zero_1_2_of_4[] = { 0, 0, 3, 4 }; + static double zero_1_3_of_4[] = { 0, 2, 0, 4 }; +/* Clearly it would be nice to draw this one as well, but it seems to trigger a bug in ghostscript. */ +#if BUG_FIXED_IN_GHOSTSCRIPT + static double zero_1_4_of_4[] = { 0, 2, 3, 0 }; +#endif + static double zero_2_3_of_4[] = { 1, 0, 0, 4 }; + static double zero_2_4_of_4[] = { 1, 0, 3, 0 }; + static double zero_3_4_of_4[] = { 1, 2, 0, 0 }; + static double zero_1_2_3_of_4[] = { 0, 0, 0, 4 }; + static double zero_1_2_4_of_4[] = { 0, 0, 3, 0 }; + static double zero_1_3_4_of_4[] = { 0, 2, 0, 0 }; + static double zero_2_3_4_of_4[] = { 1, 0, 0, 0 }; + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, 2); + + draw_dash (cr, solid_line, 2); + draw_dash (cr, invisible_line, 2); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + draw_dash (cr, dotted_line, 2); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + + draw_dash (cr, zero_1_of_3, 3); + draw_dash (cr, zero_2_of_3, 3); + draw_dash (cr, zero_3_of_3, 3); + draw_dash (cr, zero_1_of_4, 4); + draw_dash (cr, zero_2_of_4, 4); + draw_dash (cr, zero_3_of_4, 4); + draw_dash (cr, zero_4_of_4, 4); + draw_dash (cr, zero_1_2_of_4, 4); + draw_dash (cr, zero_1_3_of_4, 4); +#if BUG_FIXED_IN_GHOSTSCRIPT + draw_dash (cr, zero_1_4_of_4, 4); +#endif + draw_dash (cr, zero_2_3_of_4, 4); + draw_dash (cr, zero_2_4_of_4, 4); + draw_dash (cr, zero_3_4_of_4, 4); + draw_dash (cr, zero_1_2_3_of_4, 4); + draw_dash (cr, zero_1_2_4_of_4, 4); + draw_dash (cr, zero_1_3_4_of_4, 4); + draw_dash (cr, zero_2_3_4_of_4, 4); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (dash_zero_length, + "Tests cairo_set_dash with zero length", + "dash, stroke", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/degenerate-arc.c b/local/recipes/libs/cairo/source/test/degenerate-arc.c new file mode 100644 index 0000000000..081bfa5238 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/degenerate-arc.c @@ -0,0 +1,74 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +/* This test case exercises a "Potential division by zero in cairo_arc" + * reported by Luiz Americo Pereira Camara , + * https://lists.cairographics.org/archives/cairo/2008-May/014054.html. + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int n; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + + cairo_set_line_width (cr, 5); + cairo_set_source_rgb (cr, 0, 1, 0); + for (n = 0; n < 8; n++) { + double theta = n * 2 * M_PI / 8; + cairo_new_sub_path (cr); + cairo_arc (cr, 20, 20, 15, theta, theta); + cairo_close_path (cr); + } + cairo_stroke (cr); + + cairo_set_line_width (cr, 2); + cairo_set_source_rgb (cr, 0, 0, 1); + for (n = 0; n < 8; n++) { + double theta = n * 2 * M_PI / 8; + cairo_move_to (cr, 20, 20); + cairo_arc (cr, 20, 20, 15, theta, theta); + } + cairo_stroke (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_arc (cr, 20, 20, 2, 0, 2*M_PI); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (degenerate_arc, + "Tests the behaviour of degenerate arcs", + "degenerate", /* keywords */ + NULL, /* requirements */ + 40, 40, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/degenerate-arcs.c b/local/recipes/libs/cairo/source/test/degenerate-arcs.c new file mode 100644 index 0000000000..2470828bb7 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/degenerate-arcs.c @@ -0,0 +1,57 @@ +/* + * Copyright 2010 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define WIDTH 20 +#define HEIGHT 20 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0.3, 0.4, 0.5); + + /* This should be equivalent to a simple rectangle, such as may be + * constructed for a rounded-rectangle with corner radii of 0... + */ + cairo_arc (cr, 5, 5, 0, M_PI, 3*M_PI/2); + cairo_arc (cr, 15, 5, 0, 3*M_PI/2, 2*M_PI); + cairo_arc (cr, 15, 15, 0, 0, M_PI/2); + cairo_arc (cr, 5, 15, 0, M_PI/2, M_PI); + + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (degenerate_arcs, + "Tests path construction using a series of degenerate (radius=0) arcs", + "arc, fill", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/degenerate-curve-to.c b/local/recipes/libs/cairo/source/test/degenerate-curve-to.c new file mode 100644 index 0000000000..a081a3bb0f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/degenerate-curve-to.c @@ -0,0 +1,103 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + * Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 30 + +/* Another attempt at avoiding unnecessary splines was made, where + * a curve-to that ended on the same point as it began were discarded. + */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_line_width (cr, 1.0); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */ + + /* entirely degenerate */ + cairo_move_to (cr, + 2.5, 2.5); + cairo_curve_to (cr, + 2.5, 2.5, + 2.5, 2.5, + 2.5, 2.5); + cairo_stroke (cr); + + /* horizontal */ + cairo_move_to (cr, + 5.5, 2.5); + cairo_curve_to (cr, + 22.0, 2.5, + -0.5, 2.5, + 5.5, 2.5); + cairo_stroke (cr); + + /* vertical */ + cairo_move_to (cr, + 7.5, 0.0); + cairo_curve_to (cr, + 7.5, 11.0, + 7.5, 0.0, + 7.5, 0.0); + cairo_stroke (cr); + + cairo_translate (cr, 15, 0); + + /* horizontal/vertical */ + cairo_move_to (cr, + 5.5, 0.5); + cairo_curve_to (cr, + -0.5, 0.5, + 5.5, 10.5, + 5.5, 0.5); + + cairo_translate (cr, 10, 0); + + /* vertical/horizontal */ + cairo_move_to (cr, + 5.5, 0.0); + cairo_curve_to (cr, + 5.5, 11.0, + 10.5, 0.0, + 5.5, 0.0); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (degenerate_curve_to, + "Test optimization treating degenerate curve_to as line_to", + "path", /* keywords */ + NULL, /* requirements */ + 40, + 5, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/degenerate-dash.c b/local/recipes/libs/cairo/source/test/degenerate-dash.c new file mode 100644 index 0000000000..56d2e79388 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/degenerate-dash.c @@ -0,0 +1,90 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + * + * Based on an original test case by M Joonas Pihlaja. + */ + +#include "cairo-test.h" + +#define PAD 5 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const double dashes[] = { 25, 25 }; + cairo_line_join_t joins[] = { + CAIRO_LINE_JOIN_ROUND, + CAIRO_LINE_JOIN_MITER, + CAIRO_LINE_JOIN_BEVEL + }; + cairo_line_cap_t caps[] = { + CAIRO_LINE_CAP_ROUND, + CAIRO_LINE_CAP_SQUARE, + CAIRO_LINE_CAP_BUTT, + }; + int i, j; + + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + + cairo_set_dash (cr, dashes, 2, 0.); + cairo_set_line_width (cr, 10); + + cairo_translate (cr, 5 + PAD, 5 + PAD); + + for (i = 0; i < ARRAY_LENGTH (joins); i++) { + cairo_set_line_join (cr, joins[i]); + cairo_save (cr); + + for (j = 0; j < ARRAY_LENGTH (caps); j++) { + cairo_set_line_cap (cr, caps[j]); + + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, 50, 0); + cairo_line_to (cr, 50,50); + cairo_stroke (cr); + + cairo_translate (cr, 75, 0); + } + cairo_restore (cr); + + cairo_translate (cr, 0, 75); + } + + return CAIRO_TEST_SUCCESS; +} + +/* + * XFAIL: needs path editing in PS to convert degenerate + * end-caps into the shapes as expected by cairo (Or maybe PS is the correct + * behaviour?) + */ +CAIRO_TEST (degenerate_dash, + "Tests the behaviour of dashed segments that end on a off-on transition", + "dash, degenerate", /* keywords */ + NULL, /* requirements */ + 210 + 2*PAD, 210 + 2*PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/degenerate-linear-gradient.c b/local/recipes/libs/cairo/source/test/degenerate-linear-gradient.c new file mode 100644 index 0000000000..0d174fc899 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/degenerate-linear-gradient.c @@ -0,0 +1,81 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2010 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +#define NUM_EXTEND 4 +#define HEIGHT 16 +#define WIDTH 16 +#define PAD 3 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + unsigned int j; + + cairo_extend_t extend[NUM_EXTEND] = { + CAIRO_EXTEND_NONE, + CAIRO_EXTEND_REPEAT, + CAIRO_EXTEND_REFLECT, + CAIRO_EXTEND_PAD + }; + + cairo_test_paint_checkered (cr); + + pattern = cairo_pattern_create_linear (WIDTH/2, HEIGHT/2, WIDTH/2, HEIGHT/2); + + cairo_pattern_add_color_stop_rgba (pattern, 0, 1, 0, 0, 1); + cairo_pattern_add_color_stop_rgba (pattern, sqrt (1.0 / 2.0), 0, 1, 0, 0); + cairo_pattern_add_color_stop_rgba (pattern, 1, 0, 0, 1, 0.5); + + cairo_translate (cr, PAD, PAD); + + for (j = 0; j < NUM_EXTEND; j++) { + cairo_reset_clip (cr); + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + + cairo_pattern_set_extend (pattern, extend[j]); + + cairo_set_source (cr, pattern); + cairo_paint (cr); + + cairo_translate (cr, WIDTH+PAD, 0); + } + + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (degenerate_linear_gradient, + "Tests degenerate linear gradients", + "linear, pattern, extend", /* keywords */ + NULL, /* requirements */ + (WIDTH+PAD) * NUM_EXTEND + PAD, 1*(HEIGHT + PAD) + PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/degenerate-path.c b/local/recipes/libs/cairo/source/test/degenerate-path.c new file mode 100644 index 0000000000..aa5f8225b1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/degenerate-path.c @@ -0,0 +1,120 @@ +/* + * Copyright © 2006 Jeff Muizelaar + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Jeff Muizelaar not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Jeff Muizelaar makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * JEFF MUIZELAAR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL JEFF MUIZELAAR BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Jeff Muizelaar + */ + +#include "cairo-test.h" + +#define PAD 3.0 +#define LINE_WIDTH 6.0 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_line_cap_t cap[] = { CAIRO_LINE_CAP_ROUND, CAIRO_LINE_CAP_SQUARE, CAIRO_LINE_CAP_BUTT }; + size_t i; + double dash[] = {2, 2}; + double dash_long[] = {6, 6}; + + cairo_set_source_rgb (cr, 1, 0, 0); + + for (i = 0; i < ARRAY_LENGTH (cap); i++) { + cairo_save (cr); + + cairo_set_line_cap (cr, cap[i]); + + /* simple degenerate paths */ + cairo_set_line_width (cr, LINE_WIDTH); + cairo_move_to (cr, LINE_WIDTH, LINE_WIDTH); + cairo_line_to (cr, LINE_WIDTH, LINE_WIDTH); + cairo_stroke (cr); + + cairo_translate (cr, 0, 3*PAD); + cairo_move_to (cr, LINE_WIDTH, LINE_WIDTH); + cairo_close_path (cr); + cairo_stroke (cr); + + /* degenerate paths starting with dash on */ + cairo_set_dash (cr, dash, 2, 0.); + + cairo_translate (cr, 0, 3*PAD); + cairo_move_to (cr, LINE_WIDTH, LINE_WIDTH); + cairo_line_to (cr, LINE_WIDTH, LINE_WIDTH); + cairo_stroke (cr); + + cairo_translate (cr, 0, 3*PAD); + cairo_move_to (cr, LINE_WIDTH, LINE_WIDTH); + cairo_close_path (cr); + cairo_stroke (cr); + + /* degenerate paths starting with dash off */ + /* these should not draw anything */ + cairo_set_dash (cr, dash, 2, 2.); + + cairo_translate (cr, 0, 3*PAD); + cairo_move_to (cr, LINE_WIDTH, LINE_WIDTH); + cairo_line_to (cr, LINE_WIDTH, LINE_WIDTH); + cairo_stroke (cr); + + cairo_translate (cr, 0, 3*PAD); + cairo_move_to (cr, LINE_WIDTH, LINE_WIDTH); + cairo_close_path (cr); + cairo_stroke (cr); + + /* this should draw a single degenerate sub-path + * at the end of the path */ + cairo_set_dash (cr, dash_long, 2, 6.); + + cairo_translate (cr, 0, 3*PAD); + cairo_move_to (cr, LINE_WIDTH + 6.0, LINE_WIDTH); + cairo_line_to (cr, LINE_WIDTH, LINE_WIDTH); + cairo_stroke (cr); + + /* this should draw a single degenerate sub-path + * at the end of the path. The difference between this + * and the above is that this ends with a degenerate sub-path*/ + cairo_set_dash (cr, dash_long, 2, 6.); + + cairo_translate (cr, 0, 3*PAD); + cairo_move_to (cr, LINE_WIDTH + 6.0, LINE_WIDTH); + cairo_line_to (cr, LINE_WIDTH, LINE_WIDTH); + cairo_line_to (cr, LINE_WIDTH, LINE_WIDTH); + cairo_stroke (cr); + + cairo_restore (cr); + + cairo_translate (cr, PAD+LINE_WIDTH+PAD, 0); + } + return CAIRO_TEST_SUCCESS; +} + +/* + * XFAIL: undefined behaviour in PS, needs path editing to convert degenerate + * segments into circles/rectangles as expected by cairo + */ +CAIRO_TEST (degenerate_path, + "Tests the behaviour of degenerate paths with different cap types", + "degenerate", /* keywords */ + NULL, /* requirements */ + 3*(PAD+LINE_WIDTH+PAD), 8*(LINE_WIDTH+PAD) + PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/degenerate-pen.c b/local/recipes/libs/cairo/source/test/degenerate-pen.c new file mode 100644 index 0000000000..4be0a998fa --- /dev/null +++ b/local/recipes/libs/cairo/source/test/degenerate-pen.c @@ -0,0 +1,105 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define SIZE 20 +#define PAD 5 +#define WIDTH (PAD + 3 * (PAD + SIZE) + PAD) +#define HEIGHT (PAD + SIZE + PAD) + +/* We're demonstrating here a bug originally reported by Benjamin Otte + * on the cairo mailing list here, (after he ran into this problem + * with various flash animations): + * + * [cairo] Assertion `i < pen->num_vertices' failed in 1.4.10 + * https://lists.cairographics.org/archives/cairo/2007-August/011282.html + * + * The problem shows up with an extreme transformation matrix that + * collapses the pen to a single line, (which means that + * _cairo_slope_compare cannot handle adjacent vertices in the pen + * since they have parallel slope). + * + * This test case tests degenerate pens in several directions and uses + * round caps to force the stroking code to attempt to walk around the + * pen doing slope comparisons. + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + + cairo_translate (cr, PAD, PAD); + + /* First compress the pen to a vertical line. */ + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_curve_to (cr, SIZE / 2, 0, SIZE, SIZE / 2, SIZE, SIZE); + cairo_save (cr); + { + cairo_scale (cr, 0.000001, 1.0); + cairo_stroke (cr); + } + cairo_restore (cr); + + cairo_translate (cr, PAD + SIZE, 0); + + /* Then compress the pen to a horizontal line. */ + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_curve_to (cr, SIZE / 2, 0, SIZE, SIZE / 2, SIZE, SIZE); + cairo_save (cr); + { + cairo_scale (cr, 1.0, 0.000001); + cairo_stroke (cr); + } + cairo_restore (cr); + + cairo_translate (cr, PAD + SIZE, 0); + + /* Finally a line at an angle. */ + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_curve_to (cr, SIZE / 2, 0, SIZE, SIZE / 2, SIZE, SIZE); + cairo_save (cr); + { + cairo_rotate (cr, M_PI / 4.0); + cairo_scale (cr, 0.000001, 1.0); + cairo_stroke (cr); + } + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (degenerate_pen, + "Test round joins with a pen that's transformed to a line", + "degenerate", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/degenerate-radial-gradient.c b/local/recipes/libs/cairo/source/test/degenerate-radial-gradient.c new file mode 100644 index 0000000000..14666450e9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/degenerate-radial-gradient.c @@ -0,0 +1,93 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2010 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +#define NUM_EXTEND 4 +#define HEIGHT 32 +#define WIDTH 32 +#define PAD 6 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + unsigned int i, j; + + cairo_extend_t extend[NUM_EXTEND] = { + CAIRO_EXTEND_NONE, + CAIRO_EXTEND_REPEAT, + CAIRO_EXTEND_REFLECT, + CAIRO_EXTEND_PAD + }; + + cairo_test_paint_checkered (cr); + + cairo_translate (cr, PAD, PAD); + + for (i = 0; i < 3; i++) { + cairo_save (cr); + + for (j = 0; j < NUM_EXTEND; j++) { + cairo_reset_clip (cr); + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + + if (i == 0) + pattern = cairo_pattern_create_radial (WIDTH/2, HEIGHT/2, 0, WIDTH/2, HEIGHT/2, 0); + else if (i == 1) + pattern = cairo_pattern_create_radial (WIDTH/2, HEIGHT/2, 2*PAD, WIDTH/2, HEIGHT/2, 2*PAD); + else if (i == 2) + pattern = cairo_pattern_create_radial (PAD, PAD, 0, WIDTH-PAD, HEIGHT-PAD, 0); + + cairo_pattern_add_color_stop_rgba (pattern, 0, 1, 0, 0, 1); + cairo_pattern_add_color_stop_rgba (pattern, sqrt (1.0 / 2.0), 0, 1, 0, 0); + cairo_pattern_add_color_stop_rgba (pattern, 1, 0, 0, 1, 0.5); + + cairo_pattern_set_extend (pattern, extend[j]); + + cairo_set_source (cr, pattern); + cairo_paint (cr); + + cairo_pattern_destroy (pattern); + + cairo_translate (cr, WIDTH+PAD, 0); + } + + cairo_restore (cr); + cairo_translate (cr, 0, HEIGHT+PAD); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (degenerate_radial_gradient, + "Tests degenerate radial gradients", + "radial, pattern, extend", /* keywords */ + NULL, /* requirements */ + (WIDTH+PAD) * NUM_EXTEND + PAD, 3*(HEIGHT + PAD) + PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/degenerate-rel-curve-to.c b/local/recipes/libs/cairo/source/test/degenerate-rel-curve-to.c new file mode 100644 index 0000000000..d7c0523c60 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/degenerate-rel-curve-to.c @@ -0,0 +1,99 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + * Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 30 + +/* Another attempt at avoiding unnecessary splines was made, where + * a curve-to that ended on the same point as it began were discarded. + * The same bug was made to rel-curve-to as well, hence this test. + */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_line_width (cr, 1.0); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */ + + /* entirely degenerate */ + cairo_move_to (cr, 2.5, 2.5); + cairo_rel_curve_to (cr, + 0., 0., + 0., 0., + 0., 0.); + cairo_stroke (cr); + + /* horizontal */ + cairo_move_to (cr, 5.5, 2.5); + cairo_rel_curve_to (cr, + 10., 0., + -10., 0., + 0., 0.); + cairo_stroke (cr); + + /* vertical */ + cairo_move_to (cr, 5.5, 2.5); + cairo_rel_curve_to (cr, + 0., 10., + 0., -10., + 0., 0.); + cairo_stroke (cr); + + cairo_translate (cr, 15, 0); + + /* horizontal/vertical */ + cairo_move_to (cr, 5.5, 0.5); + cairo_rel_curve_to (cr, + -6., 0., + 0., 10., + 0., 0.); + + cairo_translate (cr, 10, 0); + + /* vertical/horizontal */ + cairo_move_to (cr, 5.5, 0.0); + cairo_rel_curve_to (cr, + 0., 11., + 5., 0., + 0., 0.); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (degenerate_rel_curve_to, + "Test optimization treating degenerate rel-curve-to as line-to", + "path", /* keywords */ + NULL, /* requirements */ + 40, + 5, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/degenerate-solid-dash.c b/local/recipes/libs/cairo/source/test/degenerate-solid-dash.c new file mode 100644 index 0000000000..293a808991 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/degenerate-solid-dash.c @@ -0,0 +1,69 @@ +/* + * Copyright © 2012 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const double dashes_1[] = { 10, 0 }; + const double dashes_2[] = { 10, 0, 10, 10}; + const double dashes_3[] = { 10, 0, 10, 0}; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_set_line_width (cr, 6); + + cairo_set_dash (cr, NULL, 0, 0); + cairo_rectangle (cr, 10, 10, 30, 30); + cairo_stroke (cr); + + cairo_translate (cr, 50, 0); + cairo_set_dash (cr, dashes_1, 2, 0); + cairo_rectangle (cr, 10, 10, 30, 30); + cairo_stroke (cr); + + cairo_translate (cr, 0, 50); + cairo_set_dash (cr, dashes_2, 4, 0); + cairo_rectangle (cr, 10, 10, 30, 30); + cairo_stroke (cr); + + cairo_translate (cr, -50, 0); + cairo_set_dash (cr, dashes_3, 4, 0); + cairo_rectangle (cr, 10, 10, 30, 30); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (degenerate_solid_dash, + "Exercises degenerate dash ellison", + "stroke, dash", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/device-offset-fractional.c b/local/recipes/libs/cairo/source/test/device-offset-fractional.c new file mode 100644 index 0000000000..adc21161fc --- /dev/null +++ b/local/recipes/libs/cairo/source/test/device-offset-fractional.c @@ -0,0 +1,72 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + * Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 10 +#define PAD 4 +#define COUNT 4 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_t *cr2; + int i,j; + + /* Fill the background */ + cairo_set_source_rgb (cr, 1, 1, 1); /* white */ + cairo_paint (cr); + + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, SIZE, SIZE); + cr2 = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr2, 0, 0, 1); /* blue */ + cairo_paint (cr2); + + cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + for (i = 0; i < COUNT; i++) { + for (j = 0; j < COUNT; j++) { + cairo_surface_set_device_offset (surface, + -i*(SIZE+PAD+.5)-PAD, + -j*(SIZE+PAD+.5)-PAD); + cairo_paint (cr); + } + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (device_offset_fractional, + "Test using image surfaces with fractional device-offsets as sources.", + "device-offset", /* keywords */ + NULL, /* requirements */ + COUNT*(SIZE+PAD+.5)+PAD, COUNT*(SIZE+PAD+.5)+PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/device-offset-positive.c b/local/recipes/libs/cairo/source/test/device-offset-positive.c new file mode 100644 index 0000000000..5afe9730d5 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/device-offset-positive.c @@ -0,0 +1,82 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" +#include + +#define SIZE 10 +#define PAD 2 + +static void +draw_square (cairo_t *cr) +{ + cairo_rectangle (cr, + PAD, PAD, + SIZE - 2 * PAD, + SIZE - 2 * PAD); + cairo_fill (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface, *target; + cairo_t *cr2; + + /* First draw a shape in blue on the original destination. */ + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + draw_square (cr); + + /* Then, create an offset surface and repeat the drawing in red. */ + target = cairo_get_group_target (cr); + surface = cairo_surface_create_similar (target, + cairo_surface_get_content (target), + SIZE / 2, SIZE / 2); + cr2 = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr2, 1, 0, 0); /* red */ + draw_square (cr2); + + /* Finally, copy the offset surface to the original destination. + * The final result should be a blue square with the upper-left + * quarter red. */ + surface = cairo_surface_reference (cairo_get_target (cr2)); + cairo_destroy (cr2); + cairo_surface_set_device_offset (surface, + SIZE / 2, + SIZE / 2); + cairo_set_source_surface (cr, surface, SIZE / 2, SIZE / 2); + cairo_surface_destroy (surface); + + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (device_offset_positive, + "Simple test using a surface with a positive device-offset as a source.", + "device-offset", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/device-offset-scale.c b/local/recipes/libs/cairo/source/test/device-offset-scale.c new file mode 100644 index 0000000000..33784fa8b2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/device-offset-scale.c @@ -0,0 +1,77 @@ +/* + * Copyright © 2008 Mozilla Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Mozilla Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Mozilla Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Michael Ventnor, Jeff Muizelaar + */ + +#include "cairo-test.h" + +#define WIDTH 20 +#define HEIGHT 20 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *second; + cairo_t *second_cr; + + /* fill with black so we don't need an rgb test case */ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_scale (cr, 0.5, 0.5); + + /* draw the first rectangle */ + cairo_set_source_rgb (cr, 0, 0, 0.4); + cairo_rectangle (cr, 6, 6, 10, 10); + cairo_fill (cr); + + /* adjust the offset so that the second rectangle will fit on the surface */ + second = cairo_image_surface_create (CAIRO_FORMAT_A8, 10, 10); + cairo_surface_set_device_offset (second, -6, -6); + + /* draw the second rectangle: + * this rectangle should end up in the same place as the rectangle above + * independent of the device offset of the surface it is painted on*/ + second_cr = cairo_create (second); + cairo_surface_destroy (second); + cairo_rectangle (second_cr, 6, 6, 10, 10); + cairo_fill (second_cr); + + /* paint the second rectangle on top of the first rectangle */ + cairo_set_source_rgb (cr, 0.5, 0.5, 0); + cairo_mask_surface (cr, cairo_get_target (second_cr), 0, 0); + cairo_destroy (second_cr); + + return CAIRO_TEST_SUCCESS; +} + +/* + * XFAIL: complication of pre-multiplying device_offset into the pattern_matrix + * and then requiring further manipulation for SVG + */ +CAIRO_TEST (device_offset_scale, + "Test that the device-offset transform is transformed by the ctm.", + "device-offset", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/device-offset.c b/local/recipes/libs/cairo/source/test/device-offset.c new file mode 100644 index 0000000000..1bf5283bd4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/device-offset.c @@ -0,0 +1,82 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" +#include + +#define SIZE 10 +#define PAD 2 + +static void +draw_square (cairo_t *cr) +{ + cairo_rectangle (cr, + PAD, PAD, + SIZE - 2 * PAD, + SIZE - 2 * PAD); + cairo_fill (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface, *target; + cairo_t *cr2; + + /* First draw a shape in blue on the original destination. */ + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + draw_square (cr); + + /* Then, create an offset surface and repeat the drawing in red. */ + target = cairo_get_group_target (cr); + surface = cairo_surface_create_similar (target, + cairo_surface_get_content (target), + SIZE / 2, SIZE / 2); + cairo_surface_set_device_offset (surface, - SIZE / 2, - SIZE / 2); + cr2 = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr2, 1, 0, 0); /* red */ + draw_square (cr2); + + + /* Finally, copy the offset surface to the original destination. + * The final result should be a blue square with the lower-right + * quarter red. */ + cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + cairo_paint (cr); + + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (device_offset, + "Simple test using a surface with a negative device-offset as a source.", + "device-offset", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/dithergradient.c b/local/recipes/libs/cairo/source/test/dithergradient.c new file mode 100644 index 0000000000..1ad1aadc72 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/dithergradient.c @@ -0,0 +1,80 @@ +/* + * Copyright © 2023 Marc Jeanmougin + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Marc Jeanmougin + */ + +#include "cairo-test.h" + +static void +set_dither_source (cairo_t *cr, int width) +{ + cairo_pattern_t *gradient = cairo_pattern_create_linear (0, 0, width, 0); + cairo_pattern_add_color_stop_rgba (gradient, 0., 25./255, 25./255, 25./255, 1.0); + cairo_pattern_add_color_stop_rgba (gradient, 1., 45./255, 45./255, 45./255, 1.0); + + cairo_set_source (cr, gradient); + cairo_pattern_set_dither (gradient, CAIRO_DITHER_BEST); + cairo_pattern_destroy (gradient); +} + +/* History: + * + * 2023: v3 of a patch to use pixman dithering with cairo + */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + set_dither_source (cr, width); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw2 (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + set_dither_source (cr, width); + + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (int i = 0; i < 5; i++) { + cairo_paint (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (dithergradient, + "Testing the creation of a dithered gradient (in argb32)", + "gradient, dither", /* keywords */ + NULL, /* requirements */ + 400, 100, + NULL, draw) +CAIRO_TEST (dithergradient2, + "Testing the creation of a dithered gradient (in argb32)", + "gradient, dither", /* keywords */ + NULL, /* requirements */ + 400, 100, + NULL, draw2) diff --git a/local/recipes/libs/cairo/source/test/drunkard-tails.c b/local/recipes/libs/cairo/source/test/drunkard-tails.c new file mode 100644 index 0000000000..f55c7becf0 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/drunkard-tails.c @@ -0,0 +1,135 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 10. +#define SIZE (5 * LINE_WIDTH) +#define PAD (3 * LINE_WIDTH) + +static uint32_t state; + +static double +uniform_random (double minval, double maxval) +{ + static uint32_t const poly = 0x9a795537U; + uint32_t n = 32; + while (n-->0) + state = 2*state < state ? (2*state ^ poly) : 2*state; + return minval + state * (maxval - minval) / 4294967296.0; +} + +static void +make_path (cairo_t *cr) +{ + int i; + + state = 0xdeadbeef; + + cairo_move_to (cr, SIZE/2, SIZE/2); + for (i = 0; i < 200; i++) { + double theta = uniform_random (-M_PI, M_PI); + cairo_rel_line_to (cr, + cos (theta) * LINE_WIDTH / 4, + sin (theta) * LINE_WIDTH / 4); + } +} + +static void +draw_caps_joins (cairo_t *cr) +{ + cairo_save (cr); + + cairo_translate (cr, PAD, PAD); + + cairo_reset_clip (cr); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_clip (cr); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_stroke (cr); + + cairo_translate (cr, SIZE + PAD, 0.); + + cairo_reset_clip (cr); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_clip (cr); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_stroke (cr); + + cairo_translate (cr, SIZE + PAD, 0.); + + cairo_reset_clip (cr); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_clip (cr); + + make_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_stroke (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_set_line_width (cr, LINE_WIDTH); + + draw_caps_joins (cr); + + cairo_save (cr); + /* and reflect to generate the opposite vertex ordering */ + cairo_translate (cr, 0, height); + cairo_scale (cr, 1, -1); + + draw_caps_joins (cr); + cairo_restore (cr); + + cairo_translate (cr, 0, SIZE + PAD); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (drunkard_tails, + "Test caps and joins on short tail segments", + "stroke, cap, join", /* keywords */ + NULL, /* requirements */ + 3 * (PAD + SIZE) + PAD, + 2 * (PAD + SIZE) + PAD, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/error-setters.c b/local/recipes/libs/cairo/source/test/error-setters.c new file mode 100644 index 0000000000..ecbb78fde1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/error-setters.c @@ -0,0 +1,90 @@ +/* + * Copyright © 2010 Red Hat Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Benjamin Otte + */ + +#include "config.h" + +#include + +#include "cairo-test.h" + +#if CAIRO_HAS_PDF_SURFACE +#include +#endif +#if CAIRO_HAS_PS_SURFACE +#include +#endif +#if CAIRO_HAS_XCB_SURFACE +#include +#endif +#if CAIRO_HAS_XLIB_SURFACE +#include +#endif + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_surface_t *surface; + + /* get the error surface */ + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, INT_MAX, INT_MAX); + +#if CAIRO_HAS_PDF_SURFACE + cairo_pdf_surface_restrict_to_version (surface, CAIRO_PDF_VERSION_1_4); + cairo_pdf_surface_set_size (surface, 0, 0); +#endif + +#if CAIRO_HAS_PS_SURFACE + cairo_ps_surface_set_eps (surface, FALSE); + cairo_ps_surface_set_size (surface, 0, 0); + cairo_ps_surface_restrict_to_level (surface, CAIRO_PS_LEVEL_2); + cairo_ps_surface_dsc_comment (surface, NULL); + cairo_ps_surface_dsc_begin_setup (surface); + cairo_ps_surface_dsc_begin_page_setup (surface); +#endif + +#if CAIRO_HAS_XCB_SURFACE + cairo_xcb_surface_set_size (surface, 0, 0); +#endif + +#if CAIRO_HAS_XLIB_SURFACE + cairo_xlib_surface_set_size (surface, 0, 0); + cairo_xlib_surface_set_drawable (surface, 0, 0, 0); +#endif + + cairo_surface_set_mime_data (surface, NULL, NULL, 0, NULL, 0); + cairo_surface_set_device_offset (surface, 0, 0); + cairo_surface_set_fallback_resolution (surface, 0, 0); + + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (error_setters, + "Check setters properly error out on read-only error surfaces", + NULL, /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/extend-pad-border.c b/local/recipes/libs/cairo/source/test/extend-pad-border.c new file mode 100644 index 0000000000..c02ec4f00f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/extend-pad-border.c @@ -0,0 +1,95 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Behdad Esfahbod + */ + +#include "cairo-test.h" +#include +#include + +#define SIZE 90 + +/* Check the border-pixels of an EXTEND_PAD image pattern */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_t * cr_surface; + int surface_size = (SIZE - 30) / 10; + + cairo_set_source_rgba (cr, 0, 0, 0, 1); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_fill (cr); + + /* Create an image surface with my favorite four colors in each + * quadrant. */ + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + surface_size, surface_size); + cr_surface = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr_surface, 1, 1, 1); + cairo_rectangle (cr_surface, + 0, 0, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 1, 0, 0); + cairo_rectangle (cr_surface, + surface_size / 2, 0, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 0, 1, 0); + cairo_rectangle (cr_surface, + 0, surface_size / 2, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 0, 0, 1); + cairo_rectangle (cr_surface, + surface_size / 2, surface_size / 2, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + + cairo_scale (cr, 10, 10); + cairo_set_source_surface (cr, cairo_get_target (cr_surface), 1.5, 1.5); + cairo_destroy (cr_surface); + + /* Using EXTEND_REFLECT makes this test pass for image and xlib backends */ + /*cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REFLECT);*/ + + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_PAD); + cairo_rectangle (cr, 1.5, 1.5, 6, 6); + cairo_clip (cr); + + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (extend_pad_border, + "Test CAIRO_EXTEND_PAD for surface patterns", + "extend", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/extend-pad-similar.c b/local/recipes/libs/cairo/source/test/extend-pad-similar.c new file mode 100644 index 0000000000..09a90f46dc --- /dev/null +++ b/local/recipes/libs/cairo/source/test/extend-pad-similar.c @@ -0,0 +1,82 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Behdad Esfahbod + */ + +#include "cairo-test.h" +#include +#include + +#define SIZE 90 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_t *cr_surface; + + /* Create a 4-pixel similar surface with my favorite four colors in each + * quadrant. */ + surface = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_COLOR, 2, 2); + cr_surface = cairo_create (surface); + cairo_surface_destroy (surface); + + /* upper-left = white */ + cairo_set_source_rgb (cr_surface, 1, 1, 1); + cairo_rectangle (cr_surface, 0, 0, 1, 1); + cairo_fill (cr_surface); + + /* upper-right = red */ + cairo_set_source_rgb (cr_surface, 1, 0, 0); + cairo_rectangle (cr_surface, 1, 0, 1, 1); + cairo_fill (cr_surface); + + /* lower-left = green */ + cairo_set_source_rgb (cr_surface, 0, 1, 0); + cairo_rectangle (cr_surface, 0, 1, 1, 1); + cairo_fill (cr_surface); + + /* lower-right = blue */ + cairo_set_source_rgb (cr_surface, 0, 0, 1); + cairo_rectangle (cr_surface, 1, 1, 1, 1); + cairo_fill (cr_surface); + + /* Now use extend pad to cover the entire surface with those 4 colors */ + cairo_set_source_surface (cr, cairo_get_target (cr_surface), + width/2 - 1, + height/2 - 1); + cairo_destroy (cr_surface); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_PAD); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (extend_pad_similar, + "Test CAIRO_EXTEND_PAD for similar surface patterns", + "extend", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/extend-pad.c b/local/recipes/libs/cairo/source/test/extend-pad.c new file mode 100644 index 0000000000..f851d44a48 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/extend-pad.c @@ -0,0 +1,81 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Behdad Esfahbod + */ + +#include "cairo-test.h" +#include +#include + +#define SIZE 90 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_t *cr_surface; + + /* Create a 4-pixel image surface with my favorite four colors in each + * quadrant. */ + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 2, 2); + cr_surface = cairo_create (surface); + cairo_surface_destroy (surface); + + /* upper-left = white */ + cairo_set_source_rgb (cr_surface, 1, 1, 1); + cairo_rectangle (cr_surface, 0, 0, 1, 1); + cairo_fill (cr_surface); + + /* upper-right = red */ + cairo_set_source_rgb (cr_surface, 1, 0, 0); + cairo_rectangle (cr_surface, 1, 0, 1, 1); + cairo_fill (cr_surface); + + /* lower-left = green */ + cairo_set_source_rgb (cr_surface, 0, 1, 0); + cairo_rectangle (cr_surface, 0, 1, 1, 1); + cairo_fill (cr_surface); + + /* lower-right = blue */ + cairo_set_source_rgb (cr_surface, 0, 0, 1); + cairo_rectangle (cr_surface, 1, 1, 1, 1); + cairo_fill (cr_surface); + + /* Now use extend pad to cover the entire surface with those 4 colors */ + cairo_set_source_surface (cr, cairo_get_target (cr_surface), + width/2 - 1, + height/2 - 1); + cairo_destroy (cr_surface); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_PAD); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (extend_pad, + "Test CAIRO_EXTEND_PAD for surface patterns", + "extend", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/extend-reflect-similar.c b/local/recipes/libs/cairo/source/test/extend-reflect-similar.c new file mode 100644 index 0000000000..fa376a7bf2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/extend-reflect-similar.c @@ -0,0 +1,51 @@ +#include "cairo-test.h" + +static const char *png_filename = "romedalen.png"; + +static cairo_surface_t * +clone_similar_surface (cairo_surface_t * target, cairo_surface_t *surface) +{ + cairo_t *cr; + cairo_surface_t *similar; + + similar = cairo_surface_create_similar (target, + cairo_surface_get_content (surface), + cairo_image_surface_get_width (surface), + cairo_image_surface_get_height (surface)); + cr = cairo_create (similar); + cairo_surface_destroy (similar); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + similar = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return similar; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *surface; + cairo_surface_t *similar; + + surface = cairo_test_create_surface_from_png (ctx, png_filename); + similar = clone_similar_surface (cairo_get_group_target (cr), surface); + cairo_set_source_surface (cr, similar, 32, 32); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REFLECT); + + cairo_paint (cr); + + cairo_surface_destroy (similar); + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (extend_reflect_similar, + "Test CAIRO_EXTEND_REFLECT for surface patterns", + "extend", /* keywords */ + NULL, /* requirements */ + 256 + 32*2, 192 + 32*2, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/extend-reflect.c b/local/recipes/libs/cairo/source/test/extend-reflect.c new file mode 100644 index 0000000000..173befc263 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/extend-reflect.c @@ -0,0 +1,29 @@ +#include "cairo-test.h" +#include +#include + +static const char *png_filename = "romedalen.png"; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *surface; + + surface = cairo_test_create_surface_from_png (ctx, png_filename); + cairo_set_source_surface (cr, surface, 32, 32); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REFLECT); + + cairo_paint (cr); + + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (extend_reflect, + "Test CAIRO_EXTEND_REFLECT for surface patterns", + "extend", /* keywords */ + NULL, /* requirements */ + 256 + 32*2, 192 + 32*2, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/extend-repeat-similar.c b/local/recipes/libs/cairo/source/test/extend-repeat-similar.c new file mode 100644 index 0000000000..08cfd29ab8 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/extend-repeat-similar.c @@ -0,0 +1,51 @@ +#include "cairo-test.h" + +static const char *png_filename = "romedalen.png"; + +static cairo_surface_t * +clone_similar_surface (cairo_surface_t * target, cairo_surface_t *surface) +{ + cairo_t *cr; + cairo_surface_t *similar; + + similar = cairo_surface_create_similar (target, + cairo_surface_get_content (surface), + cairo_image_surface_get_width (surface), + cairo_image_surface_get_height (surface)); + cr = cairo_create (similar); + cairo_surface_destroy (similar); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + similar = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return similar; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *surface; + cairo_surface_t *similar; + + surface = cairo_test_create_surface_from_png (ctx, png_filename); + similar = clone_similar_surface (cairo_get_group_target (cr), surface); + cairo_set_source_surface (cr, similar, 32, 32); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT); + + cairo_paint (cr); + + cairo_surface_destroy (similar); + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (extend_repeat_similar, + "Test CAIRO_EXTEND_REPEAT for surface patterns", + "extend", /* keywords */ + NULL, /* requirements */ + 256 + 32*2, 192 + 32*2, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/extend-repeat.c b/local/recipes/libs/cairo/source/test/extend-repeat.c new file mode 100644 index 0000000000..e6c0bccb6a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/extend-repeat.c @@ -0,0 +1,27 @@ +#include "cairo-test.h" + +static const char *png_filename = "romedalen.png"; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *surface; + + surface = cairo_test_create_surface_from_png (ctx, png_filename); + cairo_set_source_surface (cr, surface, 32, 32); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT); + + cairo_paint (cr); + + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (extend_repeat, + "Test CAIRO_EXTEND_REPEAT for surface patterns", + "extend", /* keywords */ + NULL, /* requirements */ + 256 + 32*2, 192 + 32*2, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/extended-blend.c b/local/recipes/libs/cairo/source/test/extended-blend.c new file mode 100644 index 0000000000..9c6f07d7d6 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/extended-blend.c @@ -0,0 +1,253 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2007 Emmanuel Pacaud + * Copyright © 2008 Benjamin Otte + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Owen Taylor + * Kristian Høgsberg + * Emmanuel Pacaud + */ + +#include "cairo-test.h" +#include +#include + +#define STEPS 16 +#define START_OPERATOR CAIRO_OPERATOR_MULTIPLY +#define STOP_OPERATOR CAIRO_OPERATOR_HSL_LUMINOSITY + +#define SIZE 5 +#define COUNT 4 +#define FULL_WIDTH ((STEPS + 1) * COUNT - 1) +#define FULL_HEIGHT ((COUNT + STOP_OPERATOR - START_OPERATOR) / COUNT) * (STEPS + 1) + +static void +set_solid_pattern (cairo_t *cr, + int step, + cairo_bool_t bg, + cairo_bool_t alpha) +{ + double c, a; + + a = ((double) step) / (STEPS - 1); + if (alpha) { + c = 1; + } else { + c = a; + a = 1; + } + + if (bg) /* draw a yellow background fading in using discrete steps */ + cairo_set_source_rgba (cr, c, c, 0, a); + else /* draw a teal foreground pattern fading in using discrete steps */ + cairo_set_source_rgba (cr, 0, c, c, a); +} + +/* expects a STEP*STEP pixel rectangle */ +static void +do_blend_solid (cairo_t *cr, cairo_operator_t op, cairo_bool_t alpha) +{ + int x; + + cairo_save (cr); + cairo_scale (cr, SIZE, SIZE); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + for (x = 0; x < STEPS; x++) { + /* draw the background using discrete steps */ + set_solid_pattern (cr, x, TRUE, alpha); + cairo_rectangle (cr, x, 0, 1, STEPS); + cairo_fill (cr); + } + + cairo_set_operator (cr, op); + for (x = 0; x < STEPS; x++) { + /* draw an orthogonal foreground pattern using discrete steps */ + set_solid_pattern (cr, x, FALSE, alpha); + cairo_rectangle (cr, 0, x, STEPS, 1); + cairo_fill (cr); + } + + cairo_restore (cr); +} + +static void +create_patterns (cairo_t *cr, + cairo_surface_t **bg, + cairo_surface_t **fg, + cairo_bool_t alpha) +{ + cairo_t *bgcr, *fgcr; + + *bg = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + SIZE * STEPS, + SIZE * STEPS); + *fg = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + SIZE * STEPS, + SIZE * STEPS); + + bgcr = cairo_create (*bg); + fgcr = cairo_create (*fg); + + do_blend_solid (bgcr, CAIRO_OPERATOR_DEST, alpha); + do_blend_solid (fgcr, CAIRO_OPERATOR_SOURCE, alpha); + + cairo_destroy (bgcr); + cairo_destroy (fgcr); +} + +/* expects a STEP*STEP pixel rectangle */ +static void +do_blend (cairo_t *cr, cairo_operator_t op, cairo_bool_t alpha) +{ + cairo_surface_t *bg, *fg; + + create_patterns (cr, &bg, &fg, alpha); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source_surface (cr, bg, 0, 0); + cairo_paint (cr); + + cairo_set_operator (cr, op); + cairo_set_source_surface (cr, fg, 0, 0); + cairo_paint (cr); + + cairo_surface_destroy (fg); + cairo_surface_destroy (bg); +} + +static void +do_blend_mask (cairo_t *cr, cairo_operator_t op, cairo_bool_t alpha) +{ + cairo_surface_t *bg, *fg; + + create_patterns (cr, &bg, &fg, alpha); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source_surface (cr, bg, 0, 0); + cairo_paint (cr); + + cairo_set_operator (cr, op); + cairo_set_source_surface (cr, fg, 0, 0); + cairo_paint_with_alpha (cr, .5); + + cairo_surface_destroy (fg); + cairo_surface_destroy (bg); +} + +static cairo_test_status_t +draw (cairo_t *cr, cairo_bool_t alpha, + void (*blend)(cairo_t *, cairo_operator_t, cairo_bool_t)) +{ + size_t i = 0; + cairo_operator_t op; + + for (op = START_OPERATOR; op <= STOP_OPERATOR; op++, i++) { + cairo_save (cr); + cairo_translate (cr, + SIZE * (STEPS + 1) * (i % COUNT), + SIZE * (STEPS + 1) * (i / COUNT)); + blend (cr, op, alpha); + cairo_restore (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_extended_blend (cairo_t *cr, int width, int height) +{ + return draw (cr, FALSE, do_blend); +} + +static cairo_test_status_t +draw_extended_blend_alpha (cairo_t *cr, int width, int height) +{ + return draw (cr, TRUE, do_blend); +} + +static cairo_test_status_t +draw_extended_blend_solid (cairo_t *cr, int width, int height) +{ + return draw (cr, FALSE, do_blend_solid); +} + +static cairo_test_status_t +draw_extended_blend_solid_alpha (cairo_t *cr, int width, int height) +{ + return draw (cr, TRUE, do_blend_solid); +} + +static cairo_test_status_t +draw_extended_blend_mask (cairo_t *cr, int width, int height) +{ + return draw (cr, FALSE, do_blend_mask); +} +static cairo_test_status_t +draw_extended_blend_alpha_mask (cairo_t *cr, int width, int height) +{ + return draw (cr, TRUE, do_blend_mask); +} + +CAIRO_TEST (extended_blend, + "Tests extended blend modes without alpha", + "operator", /* keywords */ + NULL, /* requirements */ + FULL_WIDTH * SIZE, FULL_HEIGHT * SIZE, + NULL, draw_extended_blend) + +CAIRO_TEST (extended_blend_alpha, + "Tests extended blend modes with alpha", + "operator", /* keywords */ + NULL, /* requirements */ + FULL_WIDTH * SIZE, FULL_HEIGHT * SIZE, + NULL, draw_extended_blend_alpha) + +CAIRO_TEST (extended_blend_mask, + "Tests extended blend modes with an alpha mask", + "operator,mask", /* keywords */ + NULL, /* requirements */ + FULL_WIDTH * SIZE, FULL_HEIGHT * SIZE, + NULL, draw_extended_blend_mask) +CAIRO_TEST (extended_blend_alpha_mask, + "Tests extended blend modes with an alpha mask", + "operator,mask", /* keywords */ + NULL, /* requirements */ + FULL_WIDTH * SIZE, FULL_HEIGHT * SIZE, + NULL, draw_extended_blend_alpha_mask) + + +CAIRO_TEST (extended_blend_solid, + "Tests extended blend modes on solid patterns without alpha", + "operator", /* keywords */ + NULL, /* requirements */ + FULL_WIDTH * SIZE, FULL_HEIGHT * SIZE, + NULL, draw_extended_blend_solid) + +CAIRO_TEST (extended_blend_solid_alpha, + "Tests extended blend modes on solid patterns with alpha", + "operator", /* keywords */ + NULL, /* requirements */ + FULL_WIDTH * SIZE, FULL_HEIGHT * SIZE, + NULL, draw_extended_blend_solid_alpha) diff --git a/local/recipes/libs/cairo/source/test/fallback-resolution.c b/local/recipes/libs/cairo/source/test/fallback-resolution.c new file mode 100644 index 0000000000..83020fc37c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/fallback-resolution.c @@ -0,0 +1,515 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + * Chris Wilson + */ + +#include "config.h" + +#include +#include +#include + +#if CAIRO_HAS_PDF_SURFACE +#include +#endif + +#ifdef HAVE_UNISTD_H +#include +#include +#endif +#if HAVE_SYS_STAT_H +#include +#endif + +#include "cairo-test.h" +#include "buffer-diff.h" + +/* This test exists to test cairo_surface_set_fallback_resolution + * + * one more thing. + * if you can somehow incorporate cairo_show_page stuff in the + * test suite. such that fallback-resolution can actually be + * automated.. + * if we could get a callback on surface when that function is + * called, we could do cool stuff like making other backends + * draw a long strip of images, one for each page... + */ + +#define INCHES_TO_POINTS(in) ((in) * 72.0) +#define SIZE INCHES_TO_POINTS(2) + +/* cairo_set_tolerance() is not respected by the PS/PDF backends currently */ +#define SET_TOLERANCE 0 + +#define GENERATE_REFERENCE 0 + +static void +draw (cairo_t *cr, double width, double height) +{ + const char *text = "cairo"; + cairo_text_extents_t extents; + const double dash[2] = { 8, 16 }; + cairo_pattern_t *pattern; + + cairo_save (cr); + + cairo_new_path (cr); + + cairo_set_line_width (cr, .05 * SIZE / 2.0); + + cairo_arc (cr, SIZE / 2.0, SIZE / 2.0, + 0.875 * SIZE / 2.0, + 0, 2.0 * M_PI); + cairo_stroke (cr); + + /* use dashes to demonstrate bugs: + * https://bugs.freedesktop.org/show_bug.cgi?id=9189 + * https://bugs.freedesktop.org/show_bug.cgi?id=17223 + */ + cairo_save (cr); + cairo_set_dash (cr, dash, 2, 0); + cairo_arc (cr, SIZE / 2.0, SIZE / 2.0, + 0.75 * SIZE / 2.0, + 0, 2.0 * M_PI); + cairo_stroke (cr); + cairo_restore (cr); + + cairo_save (cr); + cairo_rectangle (cr, 0, 0, SIZE/2, SIZE); + cairo_clip (cr); + cairo_arc (cr, SIZE / 2.0, SIZE / 2.0, + 0.6 * SIZE / 2.0, + 0, 2.0 * M_PI); + cairo_fill (cr); + cairo_restore (cr); + + /* use a pattern to exercise bug: + * https://bugs.launchpad.net/inkscape/+bug/234546 + */ + cairo_save (cr); + cairo_rectangle (cr, SIZE/2, 0, SIZE/2, SIZE); + cairo_clip (cr); + pattern = cairo_pattern_create_linear (SIZE/2, 0, SIZE, 0); + cairo_pattern_add_color_stop_rgba (pattern, 0, 0, 0, 0, 1.); + cairo_pattern_add_color_stop_rgba (pattern, 1, 0, 0, 0, 0.); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + cairo_arc (cr, SIZE / 2.0, SIZE / 2.0, + 0.6 * SIZE / 2.0, + 0, 2.0 * M_PI); + cairo_fill (cr); + cairo_restore (cr); + + cairo_set_source_rgb (cr, 1, 1, 1); /* white */ + cairo_set_font_size (cr, .25 * SIZE / 2.0); + cairo_text_extents (cr, text, &extents); + cairo_move_to (cr, (SIZE-extents.width)/2.0-extents.x_bearing, + (SIZE-extents.height)/2.0-extents.y_bearing); + cairo_show_text (cr, text); + + cairo_restore (cr); +} + +static void +_xunlink (const cairo_test_context_t *ctx, const char *pathname) +{ + if (unlink (pathname) < 0 && errno != ENOENT) { + cairo_test_log (ctx, "Error: Cannot remove %s: %s\n", + pathname, strerror (errno)); + exit (1); + } +} + +static cairo_bool_t +check_result (cairo_test_context_t *ctx, + const cairo_boilerplate_target_t *target, + const char *test_name, + const char *base_name, + cairo_surface_t *surface) +{ + const char *format; + char *ref_name; + char *png_name; + char *diff_name; + cairo_surface_t *test_image, *ref_image, *diff_image; + buffer_diff_result_t result; + cairo_status_t status; + cairo_bool_t ret; + + /* XXX log target, OUTPUT, REFERENCE, DIFFERENCE for index.html */ + + if (target->finish_surface != NULL) { + status = target->finish_surface (surface); + if (status) { + cairo_test_log (ctx, "Error: Failed to finish surface: %s\n", + cairo_status_to_string (status)); + cairo_surface_destroy (surface); + return FALSE; + } + } + + xasprintf (&png_name, "%s.out.png", base_name); + xasprintf (&diff_name, "%s.diff.png", base_name); + + test_image = target->get_image_surface (surface, 0, SIZE, SIZE); + if (cairo_surface_status (test_image)) { + cairo_test_log (ctx, "Error: Failed to extract page: %s\n", + cairo_status_to_string (cairo_surface_status (test_image))); + cairo_surface_destroy (test_image); + free (png_name); + free (diff_name); + return FALSE; + } + + _xunlink (ctx, png_name); + status = cairo_surface_write_to_png (test_image, png_name); + if (status) { + cairo_test_log (ctx, "Error: Failed to write output image: %s\n", + cairo_status_to_string (status)); + cairo_surface_destroy (test_image); + free (png_name); + free (diff_name); + return FALSE; + } + + format = cairo_boilerplate_content_name (target->content); + ref_name = cairo_test_reference_filename (ctx, + base_name, + test_name, + target->name, + target->basename, + format, + CAIRO_TEST_REF_SUFFIX, + CAIRO_TEST_PNG_EXTENSION); + if (ref_name == NULL) { + cairo_test_log (ctx, "Error: Cannot find reference image for %s\n", + base_name); + cairo_surface_destroy (test_image); + free (png_name); + free (diff_name); + return FALSE; + } + + + ref_image = cairo_test_get_reference_image (ctx, ref_name, + target->content == CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED); + if (cairo_surface_status (ref_image)) { + cairo_test_log (ctx, "Error: Cannot open reference image for %s: %s\n", + ref_name, + cairo_status_to_string (cairo_surface_status (ref_image))); + cairo_surface_destroy (ref_image); + cairo_surface_destroy (test_image); + free (png_name); + free (diff_name); + free (ref_name); + return FALSE; + } + + diff_image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + SIZE, SIZE); + + ret = TRUE; + status = image_diff (ctx, + test_image, ref_image, diff_image, + &result); + _xunlink (ctx, diff_name); + if (status) { + cairo_test_log (ctx, "Error: Failed to compare images: %s\n", + cairo_status_to_string (status)); + ret = FALSE; + } else if (image_diff_is_failure (&result, target->error_tolerance)) + { + ret = FALSE; + + status = cairo_surface_write_to_png (diff_image, diff_name); + if (status) { + cairo_test_log (ctx, "Error: Failed to write differences image: %s\n", + cairo_status_to_string (status)); + } + } + + cairo_surface_destroy (test_image); + cairo_surface_destroy (diff_image); + free (png_name); + free (diff_name); + free (ref_name); + + return ret; +} + +#if GENERATE_REFERENCE +static void +generate_reference (double ppi_x, double ppi_y, const char *filename) +{ + cairo_surface_t *surface, *target; + cairo_t *cr; + cairo_status_t status; + + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + SIZE*ppi_x/72, SIZE*ppi_y/72); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + /* As we wish to mimic a PDF surface, copy across the default font options + * from the PDF backend. + */ + { + cairo_surface_t *pdf; + cairo_font_options_t *options; + + options = cairo_font_options_create (); + +#if CAIRO_HAS_PDF_SURFACE + pdf = cairo_pdf_surface_create ("tmp.pdf", 1, 1); + cairo_surface_get_font_options (pdf, options); + cairo_surface_destroy (pdf); +#endif + + cairo_set_font_options (cr, options); + cairo_font_options_destroy (options); + } + +#if SET_TOLERANCE + cairo_set_tolerance (cr, 3.0); +#endif + + cairo_save (cr); { + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + } cairo_restore (cr); + + cairo_scale (cr, ppi_x/72., ppi_y/72.); + draw (cr, SIZE, SIZE); + + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + target = cairo_image_surface_create (CAIRO_FORMAT_RGB24, SIZE, SIZE); + cr = cairo_create (target); + cairo_scale (cr, 72./ppi_x, 72./ppi_y); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_paint (cr); + + status = cairo_surface_write_to_png (cairo_get_target (cr), filename); + cairo_destroy (cr); + + if (status) { + fprintf (stderr, "Failed to generate reference image '%s': %s\n", + filename, cairo_status_to_string (status)); + exit (1); + } +} +#endif + +/* TODO: Split each ppi case out to its own CAIRO_TEST() test case */ +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_t *cr; + cairo_test_status_t ret = CAIRO_TEST_UNTESTED; + struct { + double x, y; + } ppi[] = { + { 576, 576 }, + { 576, 72 }, + + { 288, 288 }, + { 288, 72 }, + + { 144, 144 }, + { 144, 72 }, + + { 72, 576 }, + { 72, 288 }, + { 72, 144 }, + { 72, 72 }, + }; + unsigned int i; + int n, num_ppi; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + + num_ppi = ARRAY_LENGTH (ppi); + +#if GENERATE_REFERENCE + for (n = 0; n < num_ppi; n++) { + char *ref_name; + xasprintf (&ref_name, "reference/fallback-resolution.ppi%gx%g.ref.png", + ppi[n].x, ppi[n].y); + generate_reference (ppi[n].x, ppi[n].y, ref_name); + free (ref_name); + } +#endif + + for (i = 0; i < ctx->num_targets; i++) { + const cairo_boilerplate_target_t *target = ctx->targets_to_test[i]; + cairo_surface_t *surface = NULL; + char *base_name; + void *closure; + const char *format; + cairo_status_t status; + + if (! target->is_vector) + continue; + + if (! cairo_test_is_target_enabled (ctx, target->name)) + continue; + + format = cairo_boilerplate_content_name (target->content); + xasprintf (&base_name, "%s/fallback-resolution.%s.%s", + path, target->name, + format); + + surface = (target->create_surface) (base_name, + target->content, + SIZE, SIZE, + SIZE, SIZE, + CAIRO_BOILERPLATE_MODE_TEST, + &closure); + + if (surface == NULL) { + free (base_name); + continue; + } + + if (ret == CAIRO_TEST_UNTESTED) + ret = CAIRO_TEST_SUCCESS; + + cairo_surface_destroy (surface); + if (target->cleanup) + target->cleanup (closure); + free (base_name); + + /* we need to recreate the surface for each resolution as we include + * SVG in testing which does not support the paginated interface. + */ + for (n = 0; n < num_ppi; n++) { + char *test_name; + cairo_bool_t pass; + + xasprintf (&test_name, "fallback-resolution.ppi%gx%g", + ppi[n].x, ppi[n].y); + xasprintf (&base_name, "%s/%s.%s.%s", + path, test_name, + target->name, + format); + + surface = (target->create_surface) (base_name, + target->content, + SIZE + 25, SIZE + 25, + SIZE + 25, SIZE + 25, + CAIRO_BOILERPLATE_MODE_TEST, + &closure); + if (surface == NULL || cairo_surface_status (surface)) { + cairo_test_log (ctx, "Failed to generate surface: %s.%s\n", + target->name, + format); + free (base_name); + free (test_name); + ret = CAIRO_TEST_FAILURE; + continue; + } + + cairo_test_log (ctx, + "Testing fallback-resolution %gx%g with %s target\n", + ppi[n].x, ppi[n].y, target->name); + printf ("%s:\t", base_name); + fflush (stdout); + + if (target->force_fallbacks != NULL) + target->force_fallbacks (surface, ppi[n].x, ppi[n].y); + cr = cairo_create (surface); +#if SET_TOLERANCE + cairo_set_tolerance (cr, 3.0); +#endif + + cairo_surface_set_device_offset (surface, 25, 25); + + cairo_save (cr); { + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + } cairo_restore (cr); + + /* First draw the top half in a conventional way. */ + cairo_save (cr); { + cairo_rectangle (cr, 0, 0, SIZE, SIZE / 2.0); + cairo_clip (cr); + + draw (cr, SIZE, SIZE); + } cairo_restore (cr); + + /* Then draw the bottom half in a separate group, + * (exposing a bug in 1.6.4 with the group not being + * rendered with the correct fallback resolution). */ + cairo_save (cr); { + cairo_rectangle (cr, 0, SIZE / 2.0, SIZE, SIZE / 2.0); + cairo_clip (cr); + + cairo_push_group (cr); { + draw (cr, SIZE, SIZE); + } cairo_pop_group_to_source (cr); + + cairo_paint (cr); + } cairo_restore (cr); + + status = cairo_status (cr); + cairo_destroy (cr); + + pass = FALSE; + if (status) { + cairo_test_log (ctx, "Error: Failed to create target surface: %s\n", + cairo_status_to_string (status)); + ret = CAIRO_TEST_FAILURE; + } else { + /* extract the image and compare it to our reference */ + if (! check_result (ctx, target, test_name, base_name, surface)) + ret = CAIRO_TEST_FAILURE; + else + pass = TRUE; + } + cairo_surface_destroy (surface); + if (target->cleanup) + target->cleanup (closure); + + free (base_name); + free (test_name); + + if (pass) { + printf ("PASS\n"); + } else { + printf ("FAIL\n"); + } + fflush (stdout); + } + } + + return ret; +} + +CAIRO_TEST (fallback_resolution, + "Check handling of fallback resolutions", + "fallback", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/fallback.c b/local/recipes/libs/cairo/source/test/fallback.c new file mode 100644 index 0000000000..a3cfc401c8 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/fallback.c @@ -0,0 +1,79 @@ +/* + * Copyright © 2012 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#define SIZE 40 +#define WIDTH (7*SIZE) +#define HEIGHT (5*SIZE) + +#define FALLBACK_RES_X 300 +#define FALLBACK_RES_Y 150 + +static void +rectangles (cairo_t *cr) +{ + cairo_save (cr); + + cairo_rotate (cr, M_PI/8); + cairo_translate (cr, 2*SIZE, SIZE/16); + cairo_scale (cr, 1.5, 1.5); + + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_set_source_rgba (cr, 1, 0, 0, 0.5); + cairo_fill (cr); + + /* Select an operator not supported by PDF/PS/SVG to trigger fallback */ + cairo_set_operator (cr, CAIRO_OPERATOR_SATURATE); + + cairo_rectangle (cr, SIZE/2, SIZE/2, SIZE, SIZE); + cairo_set_source_rgba (cr, 0, 1, 0, 0.5); + cairo_fill (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_set_fallback_resolution (cairo_get_target (cr), FALLBACK_RES_X, FALLBACK_RES_Y); + + rectangles (cr); + cairo_translate (cr, 3*SIZE, 0); + cairo_push_group (cr); + rectangles (cr); + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (fallback, + "Check that fallback images are correct when fallback resolution is not 72ppi", + "fallback", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/fill-alpha-pattern.c b/local/recipes/libs/cairo/source/test/fill-alpha-pattern.c new file mode 100644 index 0000000000..3698779c13 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/fill-alpha-pattern.c @@ -0,0 +1,87 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 60 /* needs to be big to check large area effects (dithering) */ +#define PAD 2 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const double alpha = 1./3; + cairo_pattern_t *pattern; + int n; + + /* draw a simple pattern behind */ + pattern = cairo_pattern_create_linear (0, 0, width, height); + cairo_pattern_add_color_stop_rgb (pattern, 0, 1, 1, 0); + cairo_pattern_add_color_stop_rgb (pattern, 1, 1, 1, 1); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + cairo_paint (cr); + + /* square */ + cairo_rectangle (cr, PAD, PAD, SIZE, SIZE); + cairo_set_source_rgba (cr, 1, 0, 0, alpha); + cairo_fill (cr); + + /* circle */ + cairo_translate (cr, SIZE + 2 * PAD, 0); + cairo_arc (cr, PAD + SIZE / 2., PAD + SIZE / 2., SIZE / 2., 0, 2 * M_PI); + cairo_set_source_rgba (cr, 0, 1, 0, alpha); + cairo_fill (cr); + + /* triangle */ + cairo_translate (cr, 0, SIZE + 2 * PAD); + cairo_move_to (cr, PAD + SIZE / 2, PAD); + cairo_line_to (cr, PAD + SIZE, PAD + SIZE); + cairo_line_to (cr, PAD, PAD + SIZE); + cairo_set_source_rgba (cr, 0, 0, 1, alpha); + cairo_fill (cr); + + /* star */ + cairo_translate (cr, -(SIZE + 2 * PAD) + SIZE/2., SIZE/2.); + for (n = 0; n < 5; n++) { + cairo_line_to (cr, + SIZE/2 * cos (2*n * 2*M_PI / 10), + SIZE/2 * sin (2*n * 2*M_PI / 10)); + + cairo_line_to (cr, + SIZE/4 * cos ((2*n+1)*2*M_PI / 10), + SIZE/4 * sin ((2*n+1)*2*M_PI / 10)); + } + cairo_set_source_rgba (cr, 0, 0, 0, alpha); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (fill_alpha_pattern, + "Tests using set_rgba();fill() over a linear gradient", + "fill, alpha", /* keywords */ + NULL, /* requirements */ + 2*SIZE + 4*PAD, 2*SIZE + 4*PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/fill-alpha.c b/local/recipes/libs/cairo/source/test/fill-alpha.c new file mode 100644 index 0000000000..6c2948dfaf --- /dev/null +++ b/local/recipes/libs/cairo/source/test/fill-alpha.c @@ -0,0 +1,82 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 60 /* needs to be big to check large area effects (dithering) */ +#define PAD 2 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const double alpha = 1./3; + int n; + + /* flatten to white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* square */ + cairo_rectangle (cr, PAD, PAD, SIZE, SIZE); + cairo_set_source_rgba (cr, 1, 0, 0, alpha); + cairo_fill (cr); + + /* circle */ + cairo_translate (cr, SIZE + 2 * PAD, 0); + cairo_arc (cr, PAD + SIZE / 2., PAD + SIZE / 2., SIZE / 2., 0, 2 * M_PI); + cairo_set_source_rgba (cr, 0, 1, 0, alpha); + cairo_fill (cr); + + /* triangle */ + cairo_translate (cr, 0, SIZE + 2 * PAD); + cairo_move_to (cr, PAD + SIZE / 2, PAD); + cairo_line_to (cr, PAD + SIZE, PAD + SIZE); + cairo_line_to (cr, PAD, PAD + SIZE); + cairo_set_source_rgba (cr, 0, 0, 1, alpha); + cairo_fill (cr); + + /* star */ + cairo_translate (cr, -(SIZE + 2 * PAD) + SIZE/2., SIZE/2.); + for (n = 0; n < 5; n++) { + cairo_line_to (cr, + SIZE/2 * cos (2*n * 2*M_PI / 10), + SIZE/2 * sin (2*n * 2*M_PI / 10)); + + cairo_line_to (cr, + SIZE/4 * cos ((2*n+1)*2*M_PI / 10), + SIZE/4 * sin ((2*n+1)*2*M_PI / 10)); + } + cairo_set_source_rgba (cr, 0, 0, 0, alpha); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (fill_alpha, + "Tests using set_rgba();fill()", + "fill, alpha", /* keywords */ + NULL, /* requirements */ + 2*SIZE + 4*PAD, 2*SIZE + 4*PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/fill-and-stroke-alpha-add.c b/local/recipes/libs/cairo/source/test/fill-and-stroke-alpha-add.c new file mode 100644 index 0000000000..55cd4c6a21 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/fill-and-stroke-alpha-add.c @@ -0,0 +1,107 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define PAD 2 +#define SIZE 10 + +typedef void (*path_func_t) (cairo_t *cr); + +static void +rectangle (cairo_t *cr) +{ + cairo_rectangle (cr, PAD, PAD, SIZE, SIZE); +} + +static void +circle (cairo_t *cr) +{ + cairo_arc (cr, + PAD + SIZE / 2, PAD + SIZE / 2, + SIZE / 2, + 0, 2 * M_PI); +} + +/* Given a path-generating function and two possibly translucent + * patterns, fill and stroke the path with the patterns (to an + * offscreen group), then blend the result into the destination. + */ +static void +fill_and_stroke (cairo_t *cr, + path_func_t path_func, + cairo_pattern_t *fill_pattern, + cairo_pattern_t *stroke_pattern) +{ + cairo_push_group (cr); + { + (path_func) (cr); + cairo_set_source (cr, fill_pattern); + cairo_fill_preserve (cr); + + /* Use DEST_OUT to subtract stroke from fill. */ + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_set_operator (cr, CAIRO_OPERATOR_DEST_OUT); + cairo_stroke_preserve (cr); + + /* Then use ADD to draw the stroke without a seam. */ + cairo_set_source (cr, stroke_pattern); + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + cairo_stroke (cr); + } + cairo_pop_group_to_source (cr); + cairo_paint (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *blue; + cairo_pattern_t *red; + + blue = cairo_pattern_create_rgba (0.0, 0.0, 1.0, 0.8); + red = cairo_pattern_create_rgba (1.0, 0.0, 0.0, 0.2); + + cairo_test_paint_checkered (cr); + + fill_and_stroke (cr, rectangle, blue, red); + + cairo_translate (cr, SIZE + 2 * PAD, 0); + + fill_and_stroke (cr, circle, red, blue); + + cairo_pattern_destroy (blue); + cairo_pattern_destroy (red); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (fill_and_stroke_alpha_add, + "Use a group to fill/stroke a path (each with different alpha) using DEST_OUT and ADD to combine", + "fill-and-stroke, fill, stroke", /* keywords */ + NULL, /* requirements */ + 2 * SIZE + 4 * PAD, SIZE + 2 * PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/fill-and-stroke-alpha.c b/local/recipes/libs/cairo/source/test/fill-and-stroke-alpha.c new file mode 100644 index 0000000000..c6d7c00629 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/fill-and-stroke-alpha.c @@ -0,0 +1,101 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define PAD 2 +#define SIZE 10 + +typedef void (*path_func_t) (cairo_t *cr); + +static void +rectangle (cairo_t *cr) +{ + cairo_rectangle (cr, PAD, PAD, SIZE, SIZE); +} + +static void +circle (cairo_t *cr) +{ + cairo_arc (cr, + PAD + SIZE / 2, PAD + SIZE / 2, + SIZE / 2, + 0, 2 * M_PI); +} + +/* Given a path-generating function and two opaque patterns, fill and + * stroke the path with the patterns (to an offscreen group), then + * blend the result into the destination with the given alpha + * value. + */ +static void +fill_and_stroke_alpha (cairo_t *cr, + path_func_t path_func, + cairo_pattern_t *fill_pattern, + cairo_pattern_t *stroke_pattern, + double alpha) +{ + cairo_push_group (cr); + { + (path_func) (cr); + cairo_set_source (cr, fill_pattern); + cairo_fill_preserve (cr); + cairo_set_source (cr, stroke_pattern); + cairo_stroke (cr); + } + cairo_pop_group_to_source (cr); + cairo_paint_with_alpha (cr, alpha); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *blue; + cairo_pattern_t *red; + + blue = cairo_pattern_create_rgb (0.0, 0.0, 1.0); + red = cairo_pattern_create_rgb (1.0, 0.0, 0.0); + + cairo_test_paint_checkered (cr); + + fill_and_stroke_alpha (cr, rectangle, blue, red, 0.5); + + cairo_translate (cr, SIZE + 2 * PAD, 0); + + fill_and_stroke_alpha (cr, circle, red, blue, 0.5); + + cairo_pattern_destroy (blue); + cairo_pattern_destroy (red); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (fill_and_stroke_alpha, + "Use a group to fill/stroke a path then blend the result with alpha onto the destination", + "fill-and-stroke, fill, stroke", /* keywords */ + NULL, /* requirements */ + 2 * SIZE + 4 * PAD, SIZE + 2 * PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/fill-and-stroke.c b/local/recipes/libs/cairo/source/test/fill-and-stroke.c new file mode 100644 index 0000000000..c983c32994 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/fill-and-stroke.c @@ -0,0 +1,58 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define PAD 2 +#define SIZE 10 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_rectangle (cr, PAD, PAD, SIZE, SIZE); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_fill_preserve (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_stroke (cr); + + cairo_translate (cr, SIZE + 2 * PAD, 0); + + cairo_arc (cr, + PAD + SIZE / 2, PAD + SIZE / 2, + SIZE / 2, + 0, 2 * M_PI); + cairo_fill_preserve (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (fill_and_stroke, + "Tests using cairo_fill_preserve/cairo_stroke to fill/stroke the same path", + "fill-and-stroke, fill, stroke", /* keywords */ + NULL, /* requirements */ + 2 * SIZE + 4 * PAD, SIZE + 2 * PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/fill-degenerate-sort-order.c b/local/recipes/libs/cairo/source/test/fill-degenerate-sort-order.c new file mode 100644 index 0000000000..d934810480 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/fill-degenerate-sort-order.c @@ -0,0 +1,77 @@ +/* + * Copyright © 2006 M Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: M Joonas Pihlaja + */ + +/* Bug history + * + * 2006-12-05 M Joonas Pihlaja + * + * There's currently a regression bug in the tessellation code from + * switching to the "new tessellator". The bug is caused by + * confusion in the comparator used to order events when there are + * degenerate edges. + */ + +#include "cairo-test.h" + +/* Derived from zrusin's "another" polygon in the performance suite. */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 0, 0); + + /* The polygon uses (43,103) as its "base point". Closed + * subpaths are simulated by going from the base point to the + * subpath's first point, doing the subpath, and returning to the + * base point. The moving to and from the base point causes + * degenerate edges which shouldn't result in anything visible. */ + cairo_move_to (cr, 43, 103); + + /* First subpath. */ + cairo_line_to (cr, 91, 101); + cairo_line_to (cr, 0, 112); + cairo_line_to (cr, 60, 0); + cairo_line_to (cr, 91, 101); + + cairo_line_to (cr, 43, 103); + + /* Second subpath. */ + cairo_line_to (cr, 176, 110); + cairo_line_to (cr, 116, 100); + cairo_line_to (cr, 176, 0); + cairo_line_to (cr, 176, 110); + + cairo_close_path (cr); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (fill_degenerate_sort_order, + "Tests the tessellator's event comparator with degenerate input", + "degenerate, fill", /* keywords */ + NULL, /* requirements */ + 190, 120, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/fill-disjoint.c b/local/recipes/libs/cairo/source/test/fill-disjoint.c new file mode 100644 index 0000000000..ea2c14fffa --- /dev/null +++ b/local/recipes/libs/cairo/source/test/fill-disjoint.c @@ -0,0 +1,63 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* The goal is exercise a bug that existed in the xlib backend, where + * it assumed the rectangles generated by rectangular tessallator had + * any sorting guarantees. + */ + +#define WIDTH 300 +#define HEIGHT 300 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int x; + + /* black background */ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + /* white rectangles */ + cairo_set_source_rgb (cr, 1, 1, 1); + + /* fill with a set of rectangles that the rectangular tessellator + * will not emit sorted. */ + for (x = 0; x < WIDTH - 10; x += 15) + cairo_rectangle (cr, x, x, 10, HEIGHT - 2*x); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (fill_disjoint, + "Tests filling unsorted rectangles.", + "fill", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/fill-empty.c b/local/recipes/libs/cairo/source/test/fill-empty.c new file mode 100644 index 0000000000..0594e57ad4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/fill-empty.c @@ -0,0 +1,62 @@ +/* + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 10 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + + /* first drawn an ordinary empty path */ + cairo_save (cr); + cairo_rectangle (cr, 0, 0, SIZE, SIZE/2); + cairo_clip (cr); + cairo_fill (cr); + cairo_restore (cr); + + /* and then an unbounded empty path */ + cairo_save (cr); + cairo_rectangle (cr, 0, SIZE/2, SIZE, SIZE/2); + cairo_clip (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_DEST_IN); + cairo_fill (cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (fill_empty, + "Test filling with an empty path", + "fill", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/fill-image.c b/local/recipes/libs/cairo/source/test/fill-image.c new file mode 100644 index 0000000000..24ee031422 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/fill-image.c @@ -0,0 +1,83 @@ +/* + * Copyright © 2006 Mozilla Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Mozilla Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Mozilla Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Vladimir Vukicevic + */ + +#include "cairo-test.h" + +#define PAD 10 +#define SIZE 100 +#define IMAGE_SIZE (SIZE-PAD*2) +#define LINE_WIDTH 10 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *image; + cairo_t *cr_image; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + IMAGE_SIZE, IMAGE_SIZE); + cr_image = cairo_create (image); + cairo_surface_destroy (image); + + /* Create the image */ + cairo_set_source_rgb (cr_image, 0, 0, 0); + cairo_paint (cr_image); + + cairo_set_source_rgb (cr_image, 0, 1, 0); + cairo_new_sub_path (cr_image); + cairo_arc (cr_image, IMAGE_SIZE/2, IMAGE_SIZE/2, IMAGE_SIZE/2 - LINE_WIDTH, 0, M_PI * 2.0); + cairo_close_path (cr_image); + cairo_new_sub_path (cr_image); + cairo_arc_negative (cr_image, IMAGE_SIZE/2, IMAGE_SIZE/2, IMAGE_SIZE/2, 0, -M_PI * 2.0); + cairo_close_path (cr_image); + cairo_fill (cr_image); + + /* Now stroke^Wfill with it */ + cairo_translate (cr, PAD, PAD); + + cairo_set_source_surface (cr, cairo_get_target (cr_image), 0, 0); + cairo_destroy (cr_image); + + cairo_new_sub_path (cr); + cairo_arc (cr, IMAGE_SIZE/2, IMAGE_SIZE/2, IMAGE_SIZE/2 - LINE_WIDTH, 0, M_PI * 2.0); + cairo_close_path (cr); + cairo_new_sub_path (cr); + cairo_arc_negative (cr, IMAGE_SIZE/2, IMAGE_SIZE/2, IMAGE_SIZE/2, 0, -M_PI * 2.0); + cairo_close_path (cr); + + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (fill_image, + "Test filling with an image source, with a non-identity CTM", + "fill, image, transform", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/fill-missed-stop.c b/local/recipes/libs/cairo/source/test/fill-missed-stop.c new file mode 100644 index 0000000000..5589337786 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/fill-missed-stop.c @@ -0,0 +1,83 @@ +/* + * Copyright © 2006 M Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: M Joonas Pihlaja + */ + +/* Bug history + * + * 2006-12-05 M Joonas Pihlaja + * + * The tessellator has a regression where a trapezoid may continue + * below the end of a polygon edge (i.e. the bottom of the trapezoid + * is miscomputed.) This can only happen if the right edge of a + * trapezoid stops earlier than the left edge and there is no start + * event at the end point of the right edge. + */ + +#include "cairo-test.h" + +#define SIZE 50 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 0, 0); + + cairo_translate (cr, 1, 1); + + /* What it should look like, with # marking the filled areas: + * + * |\ |\ + * |#\ |#\ + * |##\__|##\ + * \#| + * \| + * + * What it looke like with the bug, when the rightmost edge's end + * is missed: + * + * |\ |\ + * |#\ |#\ + * |##\__|##\ + * \#####| + * \####| + */ + + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, SIZE/2, SIZE); + cairo_line_to (cr, SIZE/2, 0); + cairo_line_to (cr, SIZE, SIZE/2); + cairo_line_to (cr, 0, SIZE/2); + cairo_close_path (cr); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (fill_missed_stop, + "Tests that the tessellator doesn't miss stop events when generating trapezoids", + "fill", /* keywords */ + NULL, /* requirements */ + SIZE+3, SIZE+3, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/fill-rule.c b/local/recipes/libs/cairo/source/test/fill-rule.c new file mode 100644 index 0000000000..66f19b7cc9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/fill-rule.c @@ -0,0 +1,127 @@ +/* + * Copyright © 2004 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +/* Bug history + * + * 2004-10-27 Carl Worth + * + * There's currently a regression bug in the tessellation code. This + * causes each of these simple star shapes to be filled incorrectly. + * + * It looks like right now we can get this test to pass by doing: + * + * cvs update -r 1.16 src/cairo_traps.c + * + * But we don't want to revert that change permanently since it + * really does correct some bugs. It must be that the old version of + * the code is masking some other bugs in the tessellation code. My + * current plan is to back this revision up for the next snapshot, + * but not to list the test as an expected failure since I'm + * planning on doing the new tessellator which should fix this + * problem. + * + * 2005-01-11 Carl Worth + * + * Keith committed some fixes that fix the original size-20 + * star_path: + * + * * src/cairo_wideint.c: (_cairo_int32x32_64_mul), + * (_cairo_int64x64_128_mul): + * * src/cairo_wideint.h: + * int32x32_64_mul and int64x64_128_mul are different from their + * unsigned compatriots + * + * 2005-01-12 Carl Worth + * + * Going back to the SVG test suite, however, the original star + * shape is still broken. Adding both shapes now as little_star_path + * and big_star_path. + * + */ + +#include "cairo-test.h" + +#define LITTLE_STAR_SIZE 20 +#define BIG_STAR_SIZE 80 + +/* The SVG start trimmed down, but still showing the bug (originally) */ +static void +little_star_path (cairo_t *cr) +{ + cairo_move_to (cr, 10, 0); + cairo_rel_line_to (cr, 6, 20); + cairo_rel_line_to (cr, -16, -12); + cairo_rel_line_to (cr, 20, 0); + cairo_rel_line_to (cr, -16, 12); +} + +/* The star shape from the SVG test suite. This was is still buggy even after + we got little_star_path working. */ +static void +big_star_path (cairo_t *cr) +{ + cairo_move_to (cr, 40, 0); + cairo_rel_line_to (cr, 25, 80); + cairo_rel_line_to (cr, -65, -50); + cairo_rel_line_to (cr, 80, 0); + cairo_rel_line_to (cr, -65, 50); + cairo_close_path (cr); +} + +/* Fill the same path twice, once with each fill rule */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 0, 0); + + cairo_translate (cr, 1, 1); + little_star_path (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING); + cairo_fill (cr); + + cairo_translate (cr, LITTLE_STAR_SIZE + 1, 0); + little_star_path (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_fill (cr); + + cairo_translate (cr, -(LITTLE_STAR_SIZE + 1), LITTLE_STAR_SIZE + 1); + big_star_path (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING); + cairo_fill (cr); + + cairo_translate (cr, BIG_STAR_SIZE + 1, 0); + big_star_path (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (fill_rule, + "Tests cairo_set_fill_rule with some star shapes", + "fill, path", /* keywords */ + NULL, /* requirements */ + BIG_STAR_SIZE * 2 + 3, BIG_STAR_SIZE + LITTLE_STAR_SIZE + 3, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/filter-bilinear-extents.c b/local/recipes/libs/cairo/source/test/filter-bilinear-extents.c new file mode 100644 index 0000000000..91ac703db6 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/filter-bilinear-extents.c @@ -0,0 +1,102 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Authors: Carl D. Worth + * Owen Taylor + */ + +#include "cairo-test.h" + +/* This test exercises code that computes the extents of a surface + * pattern with CAIRO_FILTER_BILINEAR, (where the filtering + * effectively increases the extents of the pattern). + * + * The original bug was reported by Owen Taylor here: + * + * bad clipping with EXTEND_NONE + * https://bugs.freedesktop.org/show_bug.cgi?id=15349 + */ + +#define SCALE 10 +#define PAD 3 +#define WIDTH (PAD + 3 * SCALE + PAD) +#define HEIGHT WIDTH + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *image; + cairo_t *cr2; + + image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 2, 2); + + /* Fill with an opaque background to avoid a separate rgb24 ref image */ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + /* First check handling of pattern extents > surface extents */ + cairo_save (cr); + cairo_scale (cr, width/2., height/2.); + + /* Create a solid black source to merge with the background */ + cr2 = cairo_create (image); + cairo_set_source_rgb (cr2, 0, 0 ,0); + cairo_paint (cr2); + cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_BILINEAR); + cairo_paint (cr); + cairo_restore (cr); + + /* Then scale to smaller so we can see the full bilinear extents */ + cairo_save (cr); + cairo_translate (cr, PAD, PAD); + cairo_scale (cr, SCALE, SCALE); + cairo_translate (cr, 0.5, 0.5); + + /* Create a 2x2 blue+red checkerboard source */ + cr2 = cairo_create (image); + cairo_set_source_rgb (cr2, 1, 0 ,0); /* red */ + cairo_paint (cr2); + cairo_set_source_rgb (cr2, 0, 0, 1); /* blue */ + cairo_rectangle (cr2, 0, 1, 1, 1); + cairo_rectangle (cr2, 1, 0, 1, 1); + cairo_fill (cr2); + cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_BILINEAR); + cairo_paint (cr); + cairo_restore (cr); + + cairo_surface_destroy (image); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (filter_bilinear_extents, + "Test that pattern extents are properly computed for CAIRO_FILTER_BILINEAR", + "extents", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/filter-nearest-offset.c b/local/recipes/libs/cairo/source/test/filter-nearest-offset.c new file mode 100644 index 0000000000..4df6097020 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/filter-nearest-offset.c @@ -0,0 +1,109 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define STAMP_WIDTH 4 +#define STAMP_HEIGHT 4 +#define PAD 1 + +#define STEPS 10 + +#define IMAGE_WIDTH (PAD + STEPS * (STAMP_WIDTH + PAD) + PAD) +#define IMAGE_HEIGHT (PAD + STEPS * (STAMP_HEIGHT + PAD) + PAD) + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + uint32_t data[STAMP_WIDTH * STAMP_HEIGHT] = { + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff, + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff + }; + int i, j; + + /* fill with off-white to avoid a separate rgb24 ref image */ + cairo_save (cr); + cairo_set_source_rgb (cr, .7, .7, .7); + cairo_paint (cr); + cairo_restore (cr); + + /* Draw reference lines where the jump should be. */ + cairo_move_to (cr, PAD + STEPS / 2 * (STAMP_WIDTH + PAD), 0); + cairo_rel_line_to (cr, 0, IMAGE_HEIGHT); + cairo_move_to (cr, 0, PAD + STEPS / 2 * (STAMP_HEIGHT + PAD)); + cairo_rel_line_to (cr, IMAGE_WIDTH, 0); + cairo_set_line_width (cr, 2.0); + cairo_stroke (cr); + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, + STAMP_WIDTH, + STAMP_HEIGHT, + STAMP_WIDTH * 4); + + for (j=0; j < STEPS; j++) { + double j_step; + + for (i=0; i < STEPS; i++) { + double i_step; + +#define GENERATE_REFERENCE_IMAGE 0 +#if GENERATE_REFERENCE_IMAGE + i_step = i >= STEPS / 2 ? 1 : 0; + j_step = j >= STEPS / 2 ? 1 : 0; +#else + i_step = i * 1.0 / STEPS; + j_step = j * 1.0 / STEPS; +#endif + + cairo_save (cr); + + cairo_set_source_surface (cr, surface, + PAD + i * (STAMP_WIDTH + PAD) + i_step, + PAD + j * (STAMP_HEIGHT + PAD) + j_step); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint (cr); + + cairo_restore (cr); + } + } + + cairo_surface_finish (surface); /* data goes out of scope */ + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (filter_nearest_offset, + "Test sampling offset of CAIRO_FILTER_NEAREST" + "\nwrong sampling location for nearest-neighbor filter in libpixman and Render", + "filter", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/filter-nearest-transformed.c b/local/recipes/libs/cairo/source/test/filter-nearest-transformed.c new file mode 100644 index 0000000000..ba56f7c5a0 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/filter-nearest-transformed.c @@ -0,0 +1,120 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* + * We wish to check the optimization away of non-fractional translations + * for NEAREST surface patterns under a few transformations. + */ + +static const char png_filename[] = "romedalen.png"; + +/* A single, black pixel */ +static const uint32_t black_pixel = 0xff000000; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + unsigned int i, j, k; + cairo_surface_t *surface; + cairo_pattern_t *pattern; + const cairo_matrix_t transform[] = { + { 1, 0, 0, 1, 0, 0 }, + { -1, 0, 0, 1, 8, 0 }, + { 1, 0, 0, -1, 0, 8 }, + { -1, 0, 0, -1, 8, 8 }, + }; + const cairo_matrix_t ctx_transform[] = { + { 1, 0, 0, 1, 0, 0 }, + { -1, 0, 0, 1, 14, 0 }, + { 1, 0, 0, -1, 0, 14 }, + { -1, 0, 0, -1, 14, 14 }, + }; + const double colour[][3] = { + {0, 0, 0}, + {1, 0, 0}, + {0, 1, 0}, + {0, 0, 1}, + }; + cairo_matrix_t m; + + surface = cairo_image_surface_create_for_data ((uint8_t *) &black_pixel, + CAIRO_FORMAT_ARGB32, + 1, 1, 4); + pattern = cairo_pattern_create_for_surface (surface); + cairo_surface_destroy (surface); + + cairo_pattern_set_filter (pattern, CAIRO_FILTER_NEAREST); + + surface = cairo_test_create_surface_from_png (ctx, png_filename); + + /* Fill background white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + for (k = 0; k < ARRAY_LENGTH (transform); k++) { + /* draw a "large" section from an image */ + cairo_save (cr); { + cairo_set_matrix(cr, &ctx_transform[k]); + cairo_rectangle (cr, 0, 0, 7, 7); + cairo_clip (cr); + + cairo_set_source_surface (cr, surface, + -cairo_image_surface_get_width (surface)/2., + -cairo_image_surface_get_height (surface)/2.); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint (cr); + } cairo_restore (cr); + + cairo_set_source_rgb (cr, colour[k][0], colour[k][1], colour[k][2]); + for (j = 4; j <= 6; j++) { + for (i = 4; i <= 6; i++) { + cairo_matrix_init_translate (&m, + -(2*(i-4) + .1*i), + -(2*(j-4) + .1*j)); + cairo_matrix_multiply (&m, &m, &transform[k]); + cairo_pattern_set_matrix (pattern, &m); + cairo_mask (cr, pattern); + } + } + } + + cairo_pattern_destroy (pattern); + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (filter_nearest_transformed, + "Test sample position when drawing transformed images with FILTER_NEAREST", + "filter, nearest", /* keywords */ + NULL, + 14, 14, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/finer-grained-fallbacks.c b/local/recipes/libs/cairo/source/test/finer-grained-fallbacks.c new file mode 100644 index 0000000000..fa16f72f05 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/finer-grained-fallbacks.c @@ -0,0 +1,180 @@ +/* + * Copyright © 2008 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#define CIRCLE_SIZE 10 +#define PAD 2 +#define WIDTH (CIRCLE_SIZE*6.5 + PAD) +#define HEIGHT (CIRCLE_SIZE*7.0 + PAD) + +static void +draw_circle (cairo_t *cr, double x, double y) +{ + cairo_save (cr); + cairo_translate (cr, x, y); + cairo_arc (cr, 0, 0, CIRCLE_SIZE / 2, 0., 2. * M_PI); + cairo_fill (cr); + cairo_restore (cr); +} + +static void +draw_image_circle (cairo_t *cr, cairo_surface_t *source, double x, double y) +{ + cairo_save (cr); + + cairo_set_source_surface (cr, source, x, y); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REFLECT); + cairo_rectangle (cr, x, y, CIRCLE_SIZE, CIRCLE_SIZE); + cairo_fill (cr); + + cairo_restore (cr); +} + +static void +draw_circles (cairo_t *cr) +{ + draw_circle (cr, 0, -CIRCLE_SIZE*0.1); + draw_circle (cr, CIRCLE_SIZE*0.4, CIRCLE_SIZE*0.25); + + draw_circle (cr, CIRCLE_SIZE*2, 0); + draw_circle (cr, CIRCLE_SIZE*4, 0); + draw_circle (cr, CIRCLE_SIZE*6, 0); +} + +static void +draw_image_circles (cairo_t *cr, cairo_surface_t *source) +{ + draw_image_circle (cr, source, 0, -CIRCLE_SIZE*0.1); + draw_image_circle (cr, source, CIRCLE_SIZE*0.4, CIRCLE_SIZE*0.25); + + draw_image_circle (cr, source, CIRCLE_SIZE*2, 0); + draw_image_circle (cr, source, CIRCLE_SIZE*4, 0); + draw_image_circle (cr, source, CIRCLE_SIZE*6, 0); +} + +/* For each of circle and fallback_circle we draw: + * - two overlapping + * - one isolated + * - one off the page + * - one overlapping the edge of the page. + * + * We also draw a circle and fallback_circle overlapping each other. + * + * Circles are drawn in green. An opaque color and CAIRO_OPERATOR_OVER + * is used to ensure they will be emitted as a vectors in PS/PDF. + * + * Fallback circles are drawn in red. CAIRO_OPERATOR_ADD is used to + * ensure they will be emitted as a fallback image in PS/PDF. + * + * In order to trigger a fallback for SVG, we need to use a surface with + * REFLECT. + */ +static cairo_surface_t * +surface_create (cairo_t *target) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_surface_create_similar (cairo_get_target (target), + CAIRO_CONTENT_COLOR_ALPHA, + CIRCLE_SIZE, CIRCLE_SIZE); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + draw_circle (cr, CIRCLE_SIZE/2, CIRCLE_SIZE/2); + + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return surface; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + + cairo_translate (cr, PAD, PAD); + + cairo_save (cr); + + /* Draw overlapping circle and fallback circle */ + cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + draw_circle (cr, CIRCLE_SIZE*0.5, CIRCLE_SIZE*1.5); + + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + draw_circle (cr, CIRCLE_SIZE*0.75, CIRCLE_SIZE*1.75); + + /* Draw circles */ + cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_translate (cr, CIRCLE_SIZE*2.5, CIRCLE_SIZE*0.6); + draw_circles (cr); + + /* Draw fallback circles */ + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + cairo_translate (cr, 0, CIRCLE_SIZE*2); + draw_circles (cr); + + cairo_restore (cr); + cairo_translate (cr, 0, CIRCLE_SIZE * 3.5); + + /* Draw using fallback surface */ + surface = surface_create (cr); + + cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + draw_circle (cr, CIRCLE_SIZE*0.5, CIRCLE_SIZE*1.5); + + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + draw_image_circle (cr, surface, CIRCLE_SIZE/4, CIRCLE_SIZE + CIRCLE_SIZE/4); + + /* Draw circles */ + cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_translate (cr, CIRCLE_SIZE*2.5, CIRCLE_SIZE*0.6); + draw_circles (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + cairo_translate (cr, -CIRCLE_SIZE/2, CIRCLE_SIZE*1.5); + draw_image_circles (cr, surface); + + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (finer_grained_fallbacks, + "Test that multiple PS/PDF fallback images in various locations are correct", + "fallbacks", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/font-face-get-type.c b/local/recipes/libs/cairo/source/test/font-face-get-type.c new file mode 100644 index 0000000000..afbb73944d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/font-face-get-type.c @@ -0,0 +1,79 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_test_status_t status = CAIRO_TEST_SUCCESS; + cairo_surface_t *surface; + cairo_t *cr; + cairo_font_face_t *font_face; + cairo_scaled_font_t *scaled_font; + + cairo_test_log (ctx, "Creating cairo context and obtaining a font face\n"); + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 1); + cr = cairo_create (surface); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + cairo_test_log (ctx, "Testing return value of cairo_font_face_get_type\n"); + + font_face = cairo_get_font_face (cr); + + if (cairo_font_face_get_type (font_face) != CAIRO_FONT_TYPE_TOY) { + cairo_test_log (ctx, "Unexpected value %d from cairo_font_face_get_type (expected %d)\n", + cairo_font_face_get_type (font_face), CAIRO_FONT_TYPE_TOY); + status = CAIRO_TEST_FAILURE; + goto done; + } + + cairo_test_log (ctx, "Testing return value of cairo_get_scaled_font\n"); + + scaled_font = cairo_get_scaled_font (cr); + + if (cairo_scaled_font_get_font_face (scaled_font) != font_face) { + cairo_test_log (ctx, "Font face returned from the scaled font is different from that returned by the context\n"); + status = CAIRO_TEST_FAILURE; + goto done; + } + +done: + cairo_destroy (cr); + cairo_surface_destroy (surface); + + return status; +} + +CAIRO_TEST (font_face_get_type, + "Check the returned type from cairo_select_font_face.", + "font", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/font-matrix-translation.c b/local/recipes/libs/cairo/source/test/font-matrix-translation.c new file mode 100644 index 0000000000..465ac7cf4c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/font-matrix-translation.c @@ -0,0 +1,141 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define TEXT_SIZE 12 +#define PAD 4 +#define TEXT "text" + +static cairo_bool_t +text_extents_equal (const cairo_text_extents_t *A, + const cairo_text_extents_t *B) +{ + return A->x_bearing == B->x_bearing && + A->y_bearing == B->y_bearing && + A->width == B->width && + A->height == B->height && + A->x_advance == B->x_advance && + A->y_advance == B->y_advance; +} + +static cairo_test_status_t +box_text (const cairo_test_context_t *ctx, cairo_t *cr, + const char *utf8, + double x, double y) +{ + double line_width; + cairo_text_extents_t extents = {0}, scaled_extents = {0}; + cairo_scaled_font_t *scaled_font; + cairo_status_t status; + + cairo_save (cr); + + cairo_text_extents (cr, utf8, &extents); + + scaled_font = cairo_get_scaled_font (cr); + cairo_scaled_font_text_extents (scaled_font, TEXT, &scaled_extents); + status = cairo_scaled_font_status (scaled_font); + if (status) + return cairo_test_status_from_status (ctx, status); + + if (! text_extents_equal (&extents, &scaled_extents)) { + cairo_test_log (ctx, + "Error: extents differ when they shouldn't:\n" + "cairo_text_extents(); extents (%g, %g, %g, %g, %g, %g)\n" + "cairo_scaled_font_text_extents(); extents (%g, %g, %g, %g, %g, %g)\n", + extents.x_bearing, extents.y_bearing, + extents.width, extents.height, + extents.x_advance, extents.y_advance, + scaled_extents.x_bearing, scaled_extents.y_bearing, + scaled_extents.width, scaled_extents.height, + scaled_extents.x_advance, scaled_extents.y_advance); + return CAIRO_TEST_FAILURE; + } + + line_width = cairo_get_line_width (cr); + cairo_rectangle (cr, + x + extents.x_bearing - line_width / 2, + y + extents.y_bearing - line_width / 2, + extents.width + line_width, + extents.height + line_width); + cairo_stroke (cr); + + cairo_move_to (cr, x, y); + cairo_show_text (cr, utf8); + + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_test_status_t status; + cairo_text_extents_t extents; + cairo_matrix_t matrix; + + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + + cairo_translate (cr, PAD, PAD); + cairo_set_line_width (cr, 1.0); + + cairo_text_extents (cr, TEXT, &extents); + + /* Draw text and bounding box */ + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + status = box_text (ctx, cr, TEXT, 0, - extents.y_bearing); + if (status) + return status; + + /* Then draw again with the same coordinates, but with a font + * matrix to position the text below and shifted a bit to the + * right. */ + cairo_matrix_init_translate (&matrix, TEXT_SIZE / 2, TEXT_SIZE + PAD); + cairo_matrix_scale (&matrix, TEXT_SIZE, TEXT_SIZE); + cairo_set_font_matrix (cr, &matrix); + + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + status = box_text (ctx, cr, TEXT, 0, - extents.y_bearing); + if (status) + return status; + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (font_matrix_translation, + "Test that translation in a font matrix can be used to offset a string", + "font", /* keywords */ + NULL, /* requirements */ + 38, 34, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/font-options.c b/local/recipes/libs/cairo/source/test/font-options.c new file mode 100644 index 0000000000..cfa7584d95 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/font-options.c @@ -0,0 +1,114 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#include + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_font_options_t *default_options; + cairo_font_options_t *nil_options; + cairo_surface_t *surface; + cairo_matrix_t identity; + cairo_t *cr; + cairo_scaled_font_t *scaled_font; + + /* first check NULL handling of cairo_font_options_t */ + default_options = cairo_font_options_create (); + assert (cairo_font_options_status (default_options) == CAIRO_STATUS_SUCCESS); + nil_options = cairo_font_options_copy (NULL); + assert (cairo_font_options_status (nil_options) == CAIRO_STATUS_NO_MEMORY); + + assert (cairo_font_options_equal (default_options, default_options)); + assert (! cairo_font_options_equal (default_options, nil_options)); + assert (! cairo_font_options_equal (NULL, nil_options)); + assert (! cairo_font_options_equal (nil_options, nil_options)); + assert (! cairo_font_options_equal (default_options, NULL)); + assert (! cairo_font_options_equal (NULL, default_options)); + + assert (cairo_font_options_hash (default_options) == cairo_font_options_hash (nil_options)); + assert (cairo_font_options_hash (NULL) == cairo_font_options_hash (nil_options)); + assert (cairo_font_options_hash (default_options) == cairo_font_options_hash (NULL)); + + cairo_font_options_merge (NULL, NULL); + cairo_font_options_merge (default_options, NULL); + cairo_font_options_merge (default_options, nil_options); + + cairo_font_options_set_antialias (NULL, CAIRO_ANTIALIAS_DEFAULT); + cairo_font_options_get_antialias (NULL); + assert (cairo_font_options_get_antialias (default_options) == CAIRO_ANTIALIAS_DEFAULT); + + cairo_font_options_set_subpixel_order (NULL, CAIRO_SUBPIXEL_ORDER_DEFAULT); + cairo_font_options_get_subpixel_order (NULL); + assert (cairo_font_options_get_subpixel_order (default_options) == CAIRO_SUBPIXEL_ORDER_DEFAULT); + + cairo_font_options_set_hint_style (NULL, CAIRO_HINT_STYLE_DEFAULT); + cairo_font_options_get_hint_style (NULL); + assert (cairo_font_options_get_hint_style (default_options) == CAIRO_HINT_STYLE_DEFAULT); + + cairo_font_options_set_hint_metrics (NULL, CAIRO_HINT_METRICS_DEFAULT); + cairo_font_options_get_hint_metrics (NULL); + assert (cairo_font_options_get_hint_metrics (default_options) == CAIRO_HINT_METRICS_DEFAULT); + + cairo_font_options_set_color_palette (NULL, CAIRO_COLOR_PALETTE_DEFAULT); + cairo_font_options_get_color_palette (NULL); + assert (cairo_font_options_get_color_palette (default_options) == CAIRO_COLOR_PALETTE_DEFAULT); + + cairo_font_options_destroy (NULL); + cairo_font_options_destroy (default_options); + cairo_font_options_destroy (nil_options); + + + /* Now try creating fonts with NULLs */ + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 0, 0); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_matrix_init_identity (&identity); + scaled_font = cairo_scaled_font_create (cairo_get_font_face (cr), + &identity, &identity, + NULL); + assert (cairo_scaled_font_status (scaled_font) == CAIRO_STATUS_NULL_POINTER); + cairo_scaled_font_get_font_options (scaled_font, NULL); + cairo_scaled_font_destroy (scaled_font); + + assert (cairo_status (cr) == CAIRO_STATUS_SUCCESS); + cairo_get_font_options (cr, NULL); + cairo_set_font_options (cr, NULL); + assert (cairo_status (cr) == CAIRO_STATUS_NULL_POINTER); + + cairo_destroy (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (font_options, + "Check setters and getters on cairo_font_options_t.", + "font, api", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/font-variations.c b/local/recipes/libs/cairo/source/test/font-variations.c new file mode 100644 index 0000000000..a1794aa570 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/font-variations.c @@ -0,0 +1,201 @@ +/* + * Copyright © 2017 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: MAtthias Clasen + */ + +#include "cairo-test.h" + +#include + +/* This test requires freetype2 */ +#include +#include FT_FREETYPE_H +#include FT_MULTIPLE_MASTERS_H + +#if CAIRO_HAS_FC_FONT +#include +#endif + +#include "cairo-ft.h" + +#define FloatToFixed(f) ((FT_Fixed)((f)*65536)) + +static cairo_test_status_t +test_variation (cairo_test_context_t *ctx, + const char *input, + const char *tag, + int def, + float expected_value) +{ + cairo_font_face_t *font_face; + cairo_scaled_font_t *scaled_font; + cairo_matrix_t matrix; + cairo_font_options_t *options; + cairo_status_t status; + + FT_Face ft_face; + FT_MM_Var *ft_mm_var; + FT_Error ret; + FT_Fixed coords[20]; + unsigned int i; + +#if CAIRO_HAS_FC_FONT + FcPattern *pattern; + + /* we need a font that has variations */ + pattern = FcPatternBuild (NULL, + FC_FAMILY, FcTypeString, (FcChar8*)"Adobe Variable Font Prototype", + NULL); + font_face = cairo_ft_font_face_create_for_pattern (pattern); + status = cairo_font_face_status (font_face); + FcPatternDestroy (pattern); + + if (status != CAIRO_STATUS_SUCCESS) { + cairo_test_log (ctx, "Failed to create font face"); + return CAIRO_TEST_FAILURE; + } + + cairo_matrix_init_identity (&matrix); + options = cairo_font_options_create (); + if (cairo_font_options_status (options) != CAIRO_STATUS_SUCCESS) { + cairo_test_log (ctx, "Failed to create font options"); + return CAIRO_TEST_FAILURE; + } + + cairo_font_options_set_variations (options, input); + if (cairo_font_options_status (options) != CAIRO_STATUS_SUCCESS) { + cairo_test_log (ctx, "Failed to set variations"); + return CAIRO_TEST_FAILURE; + } + + if (strcmp (cairo_font_options_get_variations (options), input) != 0) { + cairo_test_log (ctx, "Failed to verify variations"); + return CAIRO_TEST_FAILURE; + } + + scaled_font = cairo_scaled_font_create (font_face, &matrix, &matrix, options); + status = cairo_scaled_font_status (scaled_font); + + if (status != CAIRO_STATUS_SUCCESS) { + cairo_test_log (ctx, "Failed to create scaled font"); + return CAIRO_TEST_FAILURE; + } + + ft_face = cairo_ft_scaled_font_lock_face (scaled_font); + if (cairo_scaled_font_status (scaled_font) != CAIRO_STATUS_SUCCESS) { + cairo_test_log (ctx, "Failed to get FT_Face"); + return CAIRO_TEST_FAILURE; + } + if (strcmp (ft_face->family_name, "Adobe Variable Font Prototype") != 0) { + cairo_test_log (ctx, "This test requires the font \"Adobe Variable Font Prototype\" (https://github.com/adobe-fonts/adobe-variable-font-prototype/releases)"); + return CAIRO_TEST_UNTESTED; + } + + ret = FT_Get_MM_Var (ft_face, &ft_mm_var); + if (ret != 0) { + cairo_test_log (ctx, "Failed to get MM"); + return CAIRO_TEST_FAILURE; + } + + ret = FT_Get_Var_Design_Coordinates (ft_face, 20, coords); + if (ret != 0) { + cairo_test_log (ctx, "Failed to get coords"); + return CAIRO_TEST_FAILURE; + } + + for (i = 0; i < ft_mm_var->num_axis; i++) { + FT_Var_Axis *axis = &ft_mm_var->axis[i]; + cairo_test_log (ctx, "axis %s, value %g\n", axis->name, coords[i] / 65536.); + } + for (i = 0; i < ft_mm_var->num_axis; i++) { + FT_Var_Axis *axis = &ft_mm_var->axis[i]; + if (axis->tag == FT_MAKE_TAG(tag[0], tag[1], tag[2], tag[3])) { + if (def) { + if (coords[i] != axis->def) { + cairo_test_log (ctx, "Axis %s: not default value (%g != %g)", + axis->name, coords[i] / 65536., axis->def / 65536.); + return CAIRO_TEST_FAILURE; + } + } + else { + if (coords[i] != FloatToFixed(expected_value)) { + cairo_test_log (ctx, "Axis %s: not expected value (%g != %g)", + axis->name, coords[i] / 65536., expected_value); + return CAIRO_TEST_FAILURE; + } + } + } + else { + } + } + + cairo_ft_scaled_font_unlock_face (scaled_font); + + cairo_scaled_font_destroy (scaled_font); + cairo_font_options_destroy (options); + cairo_font_face_destroy (font_face); + + return CAIRO_TEST_SUCCESS; +#else + return CAIRO_TEST_UNTESTED; +#endif +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_test_status_t status = CAIRO_TEST_SUCCESS; + struct { const char *input; + const char *tag; + int expected_default; + float expected_value; + } tests[] = { + { "wdth=200,wght=300", "wght", 0, 300.0 }, // valid + { "wdth=200.5,wght=300.5", "wght", 0, 300.5 }, // valid, using decimal dot + { "wdth 200 , wght 300", "wght", 0, 300.0 }, // valid, without = + { "wght = 200", "wght", 0, 200.0 }, // valid, whitespace and = + { "CNTR=20", "wght", 1, 0.0 }, // valid, not setting wght + { "weight=100", "wght", 1, 0.0 }, // not a valid tag + { NULL, 0 } + }; + int i; + + for (i = 0; tests[i].input; i++) { + status = test_variation (ctx, + tests[i].input, + tests[i].tag, + tests[i].expected_default, + tests[i].expected_value); + if (status != CAIRO_TEST_SUCCESS) + return status; + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (font_variations, + "Test font variations", + "fonts", /* keywords */ + NULL, /* requirements */ + 9, 11, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/ft-color-font.c b/local/recipes/libs/cairo/source/test/ft-color-font.c new file mode 100644 index 0000000000..d10555dcf0 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ft-color-font.c @@ -0,0 +1,118 @@ +/* + * Copyright © 2021 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" +#include + +#define SIZE 40 +#define HEIGHT SIZE +#define WIDTH (SIZE * 1.5) +#define FONT "Noto Color Emoji" + +static const char smiley_face_utf8[] = { 0xf0, 0x9f, 0x99, 0x82, 0x00 }; /* U+1F642 */ + +static cairo_test_status_t +set_color_emoji_font (cairo_t *cr) +{ + cairo_font_options_t *font_options; + cairo_font_face_t *font_face; + FcPattern *pattern; + FcPattern *resolved; + FcChar8 *font_name; + FcResult result; + + pattern = FcPatternCreate (); + if (pattern == NULL) + return CAIRO_TEST_NO_MEMORY; + + FcPatternAddString (pattern, FC_FAMILY, (FcChar8 *) FONT); + FcConfigSubstitute (NULL, pattern, FcMatchPattern); + + font_options = cairo_font_options_create (); + cairo_get_font_options (cr, font_options); + cairo_ft_font_options_substitute (font_options, pattern); + + FcDefaultSubstitute (pattern); + resolved = FcFontMatch (NULL, pattern, &result); + if (resolved == NULL) { + FcPatternDestroy (pattern); + return CAIRO_TEST_NO_MEMORY; + } + + if (FcPatternGetString (resolved, FC_FAMILY, 0, &font_name) == FcResultMatch) { + if (strcmp((char*)font_name, FONT) != 0) { + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_test_log (ctx, "Could not find %s font\n", FONT); + return CAIRO_TEST_UNTESTED; + } + } else { + return CAIRO_TEST_FAILURE; + } + + font_face = cairo_ft_font_face_create_for_pattern (resolved); + cairo_set_font_face (cr, font_face); + + cairo_font_options_destroy (font_options); + cairo_font_face_destroy (font_face); + FcPatternDestroy (pattern); + FcPatternDestroy (resolved); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_test_status_t result; + cairo_font_options_t *font_options; + + result = set_color_emoji_font (cr); + if (result != CAIRO_TEST_SUCCESS) + return result; + + cairo_set_font_size (cr, SIZE/2); + cairo_move_to (cr, SIZE/8, 0.7 * SIZE); + + cairo_show_text(cr, smiley_face_utf8); + + /* Show that the color mode font option can disable color rendering */ + font_options = cairo_font_options_create (); + cairo_get_font_options (cr, font_options); + cairo_font_options_set_color_mode (font_options, CAIRO_COLOR_MODE_NO_COLOR); + cairo_set_font_options (cr, font_options); + cairo_font_options_destroy (font_options); + + cairo_show_text(cr, smiley_face_utf8); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (ft_color_font, + "Test color font", + "ft, font", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/ft-font-create-for-ft-face.c b/local/recipes/libs/cairo/source/test/ft-font-create-for-ft-face.c new file mode 100644 index 0000000000..52c838dd49 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ft-font-create-for-ft-face.c @@ -0,0 +1,228 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" +#include + +static void +_stress_font_cache (FT_Face ft_face, cairo_t *cr, int lvl); + +static cairo_font_face_t * +_load_font (FT_Face ft_face, int flags, cairo_t *cr, int lvl) +{ + cairo_font_face_t *font_face; + cairo_font_extents_t font_extents; + + _stress_font_cache (ft_face, cr, lvl+1); + + font_face = cairo_ft_font_face_create_for_ft_face (ft_face, flags); + + cairo_set_font_face (cr, font_face); + cairo_font_extents (cr, &font_extents); + + _stress_font_cache (ft_face, cr, lvl+1); + + return font_face; +} + +static void +_stress_font_cache (FT_Face ft_face, cairo_t *cr, int lvl) +{ +#define A _load_font (ft_face, 0, cr, lvl) +#define B _load_font (ft_face, FT_LOAD_NO_BITMAP, cr, lvl) +#define C _load_font (ft_face, FT_LOAD_NO_RECURSE, cr, lvl) +#define D _load_font (ft_face, FT_LOAD_FORCE_AUTOHINT, cr, lvl) + + cairo_font_face_t *font_face[4]; + + while (lvl++ < 5) { + font_face[0] = A; font_face[1] = A; + font_face[2] = A; font_face[3] = A; + cairo_font_face_destroy (font_face[0]); + cairo_font_face_destroy (font_face[1]); + cairo_font_face_destroy (font_face[2]); + cairo_font_face_destroy (font_face[3]); + + font_face[0] = A; font_face[1] = B; + font_face[2] = C; font_face[3] = D; + cairo_font_face_destroy (font_face[0]); + cairo_font_face_destroy (font_face[1]); + cairo_font_face_destroy (font_face[2]); + cairo_font_face_destroy (font_face[3]); + + font_face[0] = A; font_face[1] = B; + font_face[2] = C; font_face[3] = D; + cairo_font_face_destroy (font_face[3]); + cairo_font_face_destroy (font_face[2]); + cairo_font_face_destroy (font_face[1]); + cairo_font_face_destroy (font_face[0]); + + font_face[0] = A; + font_face[1] = A; + cairo_font_face_destroy (font_face[0]); + font_face[2] = A; + cairo_font_face_destroy (font_face[1]); + font_face[3] = A; + cairo_font_face_destroy (font_face[2]); + cairo_font_face_destroy (font_face[3]); + + font_face[0] = A; + font_face[1] = B; + cairo_font_face_destroy (font_face[0]); + font_face[2] = C; + cairo_font_face_destroy (font_face[1]); + font_face[3] = D; + cairo_font_face_destroy (font_face[2]); + cairo_font_face_destroy (font_face[3]); + } + +#undef A +#undef B +#undef C +#undef D +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + FcPattern *pattern, *resolved; + FcResult result; + cairo_font_face_t *font_face; + cairo_scaled_font_t *scaled_font; + cairo_font_options_t *font_options; + cairo_font_extents_t font_extents; + cairo_matrix_t font_matrix, ctm; + FT_Face ft_face; + + /* We're trying here to get our hands on _some_ FT_Face but we do + * not at all care which one. So we start with an empty pattern + * and do the minimal substitution on it in order to get a valid + * pattern. + * + * Do not use this in production code! */ + pattern = FcPatternCreate (); + if (! pattern) { + cairo_test_log (ctx, "FcPatternCreate failed.\n"); + return cairo_test_status_from_status (ctx, CAIRO_STATUS_NO_MEMORY); + } + + FcConfigSubstitute (NULL, pattern, FcMatchPattern); + FcDefaultSubstitute (pattern); + resolved = FcFontMatch (NULL, pattern, &result); + if (! resolved) { + FcPatternDestroy (pattern); + cairo_test_log (ctx, "FcFontMatch failed.\n"); + return cairo_test_status_from_status (ctx, CAIRO_STATUS_NO_MEMORY); + } + + font_face = cairo_ft_font_face_create_for_pattern (resolved); + if (cairo_font_face_status (font_face)) { + FcPatternDestroy (resolved); + FcPatternDestroy (pattern); + return cairo_test_status_from_status (ctx, cairo_font_face_status (font_face)); + } + + if (cairo_font_face_get_type (font_face) != CAIRO_FONT_TYPE_FT) { + cairo_test_log (ctx, "Unexpected value from cairo_font_face_get_type: %d (expected %d)\n", + cairo_font_face_get_type (font_face), CAIRO_FONT_TYPE_FT); + cairo_font_face_destroy (font_face); + FcPatternDestroy (resolved); + FcPatternDestroy (pattern); + return CAIRO_TEST_FAILURE; + } + + cairo_matrix_init_identity (&font_matrix); + + cairo_get_matrix (cr, &ctm); + + font_options = cairo_font_options_create (); + + cairo_get_font_options (cr, font_options); + + scaled_font = cairo_scaled_font_create (font_face, + &font_matrix, + &ctm, + font_options); + + cairo_font_options_destroy (font_options); + cairo_font_face_destroy (font_face); + FcPatternDestroy (pattern); + FcPatternDestroy (resolved); + + if (cairo_scaled_font_status (scaled_font)) { + return cairo_test_status_from_status (ctx, + cairo_scaled_font_status (scaled_font)); + } + + if (cairo_scaled_font_get_type (scaled_font) != CAIRO_FONT_TYPE_FT) { + cairo_test_log (ctx, "Unexpected value from cairo_scaled_font_get_type: %d (expected %d)\n", + cairo_scaled_font_get_type (scaled_font), CAIRO_FONT_TYPE_FT); + cairo_scaled_font_destroy (scaled_font); + return CAIRO_TEST_FAILURE; + } + + ft_face = cairo_ft_scaled_font_lock_face (scaled_font); + if (ft_face == NULL) { + cairo_test_log (ctx, "Failed to get an ft_face with cairo_ft_scaled_font_lock_face\n"); + cairo_scaled_font_destroy (scaled_font); + return CAIRO_TEST_FAILURE; + } + + /* phew, that was a lot of work. But at least we didn't ever have + * to call freetype directly, nor did we have to make many (any?) + * assumptions about the current system. + * + * Now, on to the simple thing we actually want to test. + */ + + cairo_save (cr); + + /* First we want to test caching behaviour */ + _stress_font_cache (ft_face, cr, 0); + + /* Set the font_face and force cairo to actually use it for + * something. */ + font_face = cairo_ft_font_face_create_for_ft_face (ft_face, 0); + cairo_set_font_face (cr, font_face); + cairo_font_extents (cr, &font_extents); + + cairo_restore (cr); + + /* Finally, even more cleanup */ + cairo_font_face_destroy (font_face); + cairo_ft_scaled_font_unlock_face (scaled_font); + cairo_scaled_font_destroy (scaled_font); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (ft_font_create_for_ft_face, + "Simple test to verify that cairo_ft_font_create_for_ft_face doesn't crash.", + "ft, font", /* keywords */ + NULL, /* requirements */ + 0, 0, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/ft-show-glyphs-positioning.c b/local/recipes/libs/cairo/source/test/ft-show-glyphs-positioning.c new file mode 100644 index 0000000000..449f8eb1f2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ft-show-glyphs-positioning.c @@ -0,0 +1,191 @@ +/* + * Copyright © 2008 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" +#include + +#define TEXT_SIZE 12 + +typedef struct { + cairo_glyph_t glyph_list[100]; + int num_glyphs; + double x; + double y; +} glyph_array_t; + +static void +glyph_array_init (glyph_array_t *glyphs, double x, double y) +{ + glyphs->num_glyphs = 0; + glyphs->x = x; + glyphs->y = y; +} + +static void +glyph_array_rel_move_to (glyph_array_t *glyphs, double x, double y) +{ + glyphs->x += x; + glyphs->y += y; +} + +static void +glyph_array_show (glyph_array_t *glyphs, cairo_t *cr) +{ + cairo_show_glyphs (cr, glyphs->glyph_list, glyphs->num_glyphs); +} + +#define DOUBLE_FROM_26_6(t) ((double)(t) / 64.0) + +static cairo_status_t +glyph_array_add_text(glyph_array_t *glyphs, cairo_t *cr, const char *s, double spacing) +{ + cairo_scaled_font_t *scaled_font; + cairo_status_t status; + FT_Face face; + unsigned long charcode; + unsigned int index; + cairo_text_extents_t extents; + const char *p; + FT_Vector kerning; + double kern_x; + int first = TRUE; + + scaled_font = cairo_get_scaled_font (cr); + status = cairo_scaled_font_status (scaled_font); + if (status) + return status; + + face = cairo_ft_scaled_font_lock_face (scaled_font); + if (face == NULL) + return CAIRO_STATUS_FONT_TYPE_MISMATCH; + + p = s; + while (*p) + { + charcode = *p; + index = FT_Get_Char_Index (face, charcode); + glyphs->glyph_list[glyphs->num_glyphs].index = index; + if (first) { + first = FALSE; + glyphs->glyph_list[glyphs->num_glyphs].x = glyphs->x; + glyphs->glyph_list[glyphs->num_glyphs].y = glyphs->y; + } else { + cairo_glyph_extents (cr, &glyphs->glyph_list[glyphs->num_glyphs - 1], 1, &extents); + FT_Get_Kerning (face, + glyphs->glyph_list[glyphs->num_glyphs - 1].index, + glyphs->glyph_list[glyphs->num_glyphs].index, + FT_KERNING_UNSCALED, + &kerning); + kern_x = DOUBLE_FROM_26_6(kerning.x); + glyphs->glyph_list[glyphs->num_glyphs].x = + glyphs->glyph_list[glyphs->num_glyphs - 1].x + extents.x_advance + kern_x + spacing; + glyphs->glyph_list[glyphs->num_glyphs].y = + glyphs->glyph_list[glyphs->num_glyphs - 1].y + extents.y_advance; + } + + cairo_glyph_extents (cr, &glyphs->glyph_list[glyphs->num_glyphs], 1, &extents); + glyphs->x = glyphs->glyph_list[glyphs->num_glyphs].x + extents.x_advance + spacing; + glyphs->y = glyphs->glyph_list[glyphs->num_glyphs].y + extents.y_advance; + p++; + glyphs->num_glyphs++; + } + + cairo_ft_scaled_font_unlock_face (scaled_font); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + glyph_array_t glyphs; + cairo_font_options_t *font_options; + cairo_status_t status; + + /* paint white so we don't need separate ref images for + * RGB24 and ARGB32 */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); + cairo_paint (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + + font_options = cairo_font_options_create (); + cairo_get_font_options (cr, font_options); + cairo_font_options_set_hint_metrics (font_options, CAIRO_HINT_METRICS_OFF); + cairo_set_font_options (cr, font_options); + cairo_font_options_destroy (font_options); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + + glyph_array_init (&glyphs, 1, TEXT_SIZE); + + status = glyph_array_add_text(&glyphs, cr, "AWAY again", 0.0); + if (status) + return cairo_test_status_from_status (ctx, status); + + glyph_array_rel_move_to (&glyphs, TEXT_SIZE*1, 0.0); + status = glyph_array_add_text(&glyphs, cr, "character space", TEXT_SIZE*0.3); + if (status) + return cairo_test_status_from_status (ctx, status); + + glyph_array_show (&glyphs, cr); + + + glyph_array_init (&glyphs, 1, TEXT_SIZE*2 + 4); + + status = glyph_array_add_text(&glyphs, cr, "Increasing", 0.0); + if (status) + return cairo_test_status_from_status (ctx, status); + + glyph_array_rel_move_to (&glyphs, TEXT_SIZE*0.5, 0.0); + status = glyph_array_add_text(&glyphs, cr, "space", 0.0); + if (status) + return cairo_test_status_from_status (ctx, status); + + glyph_array_rel_move_to (&glyphs, TEXT_SIZE*1.0, 0.0); + status = glyph_array_add_text(&glyphs, cr, "between", 0.0); + if (status) + return cairo_test_status_from_status (ctx, status); + + glyph_array_rel_move_to (&glyphs, TEXT_SIZE*1.5, 0.0); + status = glyph_array_add_text(&glyphs, cr, "words", 0.0); + if (status) + return cairo_test_status_from_status (ctx, status); + + glyph_array_show (&glyphs, cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (ft_show_glyphs_positioning, + "Test that the PS/PDF glyph positioning optimizations are correct", + "ft, text", /* keywords */ + NULL, /* requirements */ + 235, (TEXT_SIZE + 4)*2, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/ft-show-glyphs-table.c b/local/recipes/libs/cairo/source/test/ft-show-glyphs-table.c new file mode 100644 index 0000000000..344392f403 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ft-show-glyphs-table.c @@ -0,0 +1,109 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Authors: Eugeniy Meshcheryakov + * Adrian Johnson + * Carl Worth + */ + +#include "cairo-test.h" +#include + +#define TEXT_SIZE 20 +#define PAD 10 +#define GRID_SIZE 30 +#define GRID_ROWS 10 +#define GRID_COLS 4 +#define NUM_GLYPHS (GRID_ROWS * GRID_COLS) +#define WIDTH (PAD + GRID_COLS * GRID_SIZE + PAD) +#define HEIGHT (PAD + GRID_ROWS * GRID_SIZE + PAD) + +/* This test was originally inspired by this bug report: + * + * Error when creating pdf charts for new FreeSerifItalic.ttf + * http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=%23474136 + * + * The original assertion failure was fairly boring, but the later + * glyph mispositiing was quite interesting. And it turns out that the + * _cairo_pdf_operators_show_glyphs code is fairly convoluted with a + * code path that wasn't being exercised at all by the test suite. + * + * So this is an attempt to exercise that code path. Apparently laying + * glyphs out vertically in a table like this, (so that there's a + * large change in Y position from one glyph to the next), exercises + * the code well. + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_font_options_t *font_options; + cairo_scaled_font_t *scaled_font; + FT_Face face; + FT_ULong charcode; + FT_UInt idx; + int i = 0; + cairo_glyph_t glyphs[NUM_GLYPHS]; + + /* paint white so we don't need separate ref images for + * RGB24 and ARGB32 */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); + cairo_paint (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + + font_options = cairo_font_options_create (); + cairo_get_font_options (cr, font_options); + cairo_font_options_set_hint_metrics (font_options, CAIRO_HINT_METRICS_OFF); + cairo_set_font_options (cr, font_options); + cairo_font_options_destroy (font_options); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + + scaled_font = cairo_get_scaled_font (cr); + face = cairo_ft_scaled_font_lock_face (scaled_font); + { + charcode = FT_Get_First_Char(face, &idx); + while (idx && (i < NUM_GLYPHS)) { + glyphs[i] = (cairo_glyph_t) {idx, PAD + GRID_SIZE * (i/GRID_ROWS), PAD + TEXT_SIZE + GRID_SIZE * (i%GRID_ROWS)}; + i++; + charcode = FT_Get_Next_Char(face, charcode, &idx); + } + } + cairo_ft_scaled_font_unlock_face (scaled_font); + + cairo_show_glyphs(cr, glyphs, i); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (ft_show_glyphs_table, + "Test cairo_show_glyphs with cairo-ft backend and glyphs laid out in a table", + "ft, text", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/ft-svg-cairo-logo.c b/local/recipes/libs/cairo/source/test/ft-svg-cairo-logo.c new file mode 100644 index 0000000000..22fb25f234 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ft-svg-cairo-logo.c @@ -0,0 +1,66 @@ +/* + * Copyright © 2022 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" +#include + +#define FONT_SIZE 200 +#define MARGIN 5 +#define WIDTH (FONT_SIZE + MARGIN*2) +#define HEIGHT (FONT_SIZE + MARGIN*2) + +#define FONT_FILE "cairo-logo-font.ttf" + +/* Character code in font of the logo */ +#define CAIRO_LOGO_CHAR "A" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_test_status_t result; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + result = cairo_test_ft_select_font_from_file (cr, FONT_FILE); + if (result) + return result; + + cairo_set_font_size (cr, FONT_SIZE); + cairo_move_to (cr, MARGIN, FONT_SIZE + MARGIN); + + cairo_show_text (cr, CAIRO_LOGO_CHAR); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (ft_svg_cairo_logo, + "Test cairo logo SVG font", + "svgrender", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/ft-svg-color-font.c b/local/recipes/libs/cairo/source/test/ft-svg-color-font.c new file mode 100644 index 0000000000..56510feca8 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ft-svg-color-font.c @@ -0,0 +1,146 @@ +/* + * Copyright © 2022 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" +#include + +#define FONT_SIZE 50 +#define MARGIN 5 +#define WIDTH (FONT_SIZE*4 + MARGIN*2) +#define HEIGHT (FONT_SIZE*3 + MARGIN*5) + +/* Check the full name to ensure we got an SVG font. */ +#define FONT_FAMILY "Twitter Color Emoji" +#define FONT_FULLNAME "Twitter Color Emoji SVGinOT" + +static const char spade_utf8[] = { 0xe2, 0x99, 0xa0, 0x00 }; /* U+2660 glyph 87 */ +static const char club_utf8[] = { 0xe2, 0x99, 0xa3, 0x00 }; /* U+2663 glyph 88 */ +static const char heart_utf8[] = { 0xe2, 0x99, 0xa5, 0x00 }; /* U+2665 glyph 89 */ +static const char diamond_utf8[] = { 0xe2, 0x99, 0xa6, 0x00 }; /* U+2666 glyph 90 */ + +static cairo_test_status_t +set_color_emoji_font (cairo_t *cr) +{ + cairo_font_options_t *font_options; + cairo_font_face_t *font_face; + FcPattern *pattern; + FcPattern *resolved; + FcChar8 *font_name; + FcResult result; + + pattern = FcPatternCreate (); + if (pattern == NULL) + return CAIRO_TEST_NO_MEMORY; + + FcPatternAddString (pattern, FC_FAMILY, (FcChar8 *) FONT_FAMILY); + FcConfigSubstitute (NULL, pattern, FcMatchPattern); + + font_options = cairo_font_options_create (); + cairo_get_font_options (cr, font_options); + cairo_ft_font_options_substitute (font_options, pattern); + + FcDefaultSubstitute (pattern); + resolved = FcFontMatch (NULL, pattern, &result); + if (resolved == NULL) { + FcPatternDestroy (pattern); + return CAIRO_TEST_NO_MEMORY; + } + + if (FcPatternGetString (resolved, FC_FULLNAME, 0, &font_name) == FcResultMatch) { + if (strcmp((char*)font_name, FONT_FULLNAME) != 0) { + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_test_log (ctx, "Could not find %s font\n", FONT_FULLNAME); + return CAIRO_TEST_UNTESTED; + } + } else { + return CAIRO_TEST_FAILURE; + } + + font_face = cairo_ft_font_face_create_for_pattern (resolved); + cairo_set_font_face (cr, font_face); + + cairo_font_options_destroy (font_options); + cairo_font_face_destroy (font_face); + FcPatternDestroy (pattern); + FcPatternDestroy (resolved); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_font_options_t *font_options; + cairo_test_status_t result; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + result = set_color_emoji_font (cr); + if (result != CAIRO_TEST_SUCCESS) + return result; + + cairo_set_font_size (cr, FONT_SIZE); + + /* Color glyphs */ + cairo_move_to (cr, MARGIN, FONT_SIZE + MARGIN); + cairo_show_text (cr, diamond_utf8); + cairo_show_text (cr, club_utf8); + cairo_show_text (cr, heart_utf8); + cairo_show_text (cr, spade_utf8); + + /* Non-color glyphs */ + font_options = cairo_font_options_create (); + cairo_font_options_set_color_mode (font_options, CAIRO_COLOR_MODE_NO_COLOR); + cairo_set_font_options (cr, font_options); + cairo_move_to (cr, MARGIN, FONT_SIZE*2 + MARGIN*2); + cairo_show_text (cr, diamond_utf8); + cairo_show_text (cr, club_utf8); + cairo_show_text (cr, heart_utf8); + cairo_show_text (cr, spade_utf8); + + /* Color glyph text path */ + cairo_font_options_set_color_mode (font_options, CAIRO_COLOR_MODE_COLOR); + cairo_set_font_options (cr, font_options); + cairo_font_options_destroy (font_options); + cairo_move_to (cr, MARGIN, FONT_SIZE*3 + MARGIN*3); + cairo_text_path (cr, diamond_utf8); + cairo_text_path (cr, club_utf8); + cairo_text_path (cr, heart_utf8); + cairo_text_path (cr, spade_utf8); + cairo_set_line_width (cr, 1); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (ft_svg_color_font, + "Test color font", + "svgrender", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/ft-svg-render-color.c b/local/recipes/libs/cairo/source/test/ft-svg-render-color.c new file mode 100644 index 0000000000..c7572d5b0e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ft-svg-render-color.c @@ -0,0 +1,98 @@ +/* + * Copyright © 2023 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" +#include + +#define FONT_SIZE 50 +#define MARGIN 5 +#define WIDTH (FONT_SIZE*8 + MARGIN*9) +#define HEIGHT (FONT_SIZE*2 + MARGIN*3) + +#define FONT_FILE "cairo-svg-test-color.ttf" + +#define PALETTE_TEXT "01" +#define FOREGROUND_TEXT "234567" + + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_test_status_t result; + cairo_font_options_t *font_options; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + result = cairo_test_ft_select_font_from_file (cr, FONT_FILE); + if (result) + return result; + + cairo_set_font_size (cr, FONT_SIZE); + + cairo_save (cr); + cairo_move_to (cr, MARGIN, FONT_SIZE + MARGIN); + font_options = cairo_font_options_create (); + + /* Default palette */ + cairo_show_text (cr, PALETTE_TEXT); + + /* Palette 1 */ + cairo_font_options_set_color_palette (font_options, 1); + cairo_set_font_options (cr, font_options); + cairo_show_text (cr, PALETTE_TEXT); + + /* Palette 0, override color 0 */ + cairo_font_options_set_color_palette (font_options, 0); + cairo_font_options_set_custom_palette_color (font_options, 0, 1, 0, 1, 0.5); + cairo_set_font_options (cr, font_options); + cairo_show_text (cr, PALETTE_TEXT); + + /* Palette 1, override color 1 */ + cairo_font_options_set_color_palette (font_options, 1); + cairo_font_options_set_custom_palette_color (font_options, 1, 0, 1, 1, 0.5); + cairo_set_font_options (cr, font_options); + cairo_show_text (cr, PALETTE_TEXT); + + cairo_font_options_destroy (font_options); + cairo_restore (cr); + + cairo_move_to (cr, MARGIN, FONT_SIZE*2 + MARGIN*2); + + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_show_text (cr, FOREGROUND_TEXT); + + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (ft_svg_render_color, + "Test cairo SVG font colors", + "svgrender", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/ft-svg-render.c b/local/recipes/libs/cairo/source/test/ft-svg-render.c new file mode 100644 index 0000000000..9b0351b100 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ft-svg-render.c @@ -0,0 +1,159 @@ +/* + * Copyright © 2022 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" +#include + +#define GLYPH_SIZE 50 +#define PAD 5 +#define WIDTH (4*(GLYPH_SIZE + PAD) + PAD) +#define HEIGHT WIDTH + +//#define CLIP 1 +#define LOG_EXTENTS 1 + +static cairo_test_status_t +draw_font (cairo_t *cr, int width, int height, const char *font_file) +{ + cairo_test_status_t result; + char buf[10]; + cairo_text_extents_t extents; + cairo_font_options_t *font_options; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + result = cairo_test_ft_select_font_from_file (cr, font_file); + if (result) + return result; + + font_options = cairo_font_options_create (); + cairo_font_options_set_color_mode (font_options, CAIRO_COLOR_MODE_NO_COLOR); +// cairo_set_font_options (cr, font_options); + cairo_font_options_destroy (font_options); + + cairo_set_font_size (cr, GLYPH_SIZE); + for (int i = 0; i < 4; i++) { + for (int j = 0; j < 4; j++) { + int x = j * (GLYPH_SIZE + PAD) + PAD; + int y = i * (GLYPH_SIZE + PAD) + PAD; + int glyph_number = 4*i + j; + buf[0] = glyph_number < 10 ? '0' + glyph_number : 'A' + glyph_number - 10; + buf[1] = 0; + cairo_save (cr); + cairo_text_extents (cr, buf, &extents); +#if LOG_EXTENTS + cairo_test_log (cairo_test_get_context (cr), + "Char '%c' extents: x_bearing: %f y_bearing: %f width: %f height: %f x_advance: %f y_advance: %f\n", + buf[0], + extents.x_bearing, + extents.y_bearing, + extents.width, + extents.height, + extents.x_advance, + extents.y_advance); +#endif +#if CLIP + cairo_rectangle (cr, x, y, GLYPH_SIZE, GLYPH_SIZE); + cairo_clip (cr); +#endif + cairo_move_to (cr, x, y + GLYPH_SIZE); + cairo_show_text (cr, buf); + cairo_restore (cr); + if (cairo_status (cr)) { + cairo_test_log (cairo_test_get_context (cr), + "cairo_show_text() failed with \"%s\"\n", + buf); + return CAIRO_TEST_FAILURE; + } + } + } + + return CAIRO_TEST_SUCCESS; +} + +#define DRAW_FUNC(name) \ +static cairo_test_status_t \ +draw_##name (cairo_t *cr, int width, int height) { \ + return draw_font (cr, width, height, "cairo-svg-test-" #name ".ttf"); \ +} + +DRAW_FUNC(doc) +CAIRO_TEST (ft_svg_render_doc, + "Test SVG glyph render", + "svgrender", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_doc) + +DRAW_FUNC(fill) +CAIRO_TEST (ft_svg_render_fill, + "Test SVG glyph render", + "svgrender", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_fill) + +DRAW_FUNC(gradient) +CAIRO_TEST (ft_svg_render_gradient, + "Test SVG glyph render", + "svgrender", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_gradient) + +DRAW_FUNC(path) +CAIRO_TEST (ft_svg_render_path, + "Test SVG glyph render", + "svgrender", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_path) + +DRAW_FUNC(shapes) +CAIRO_TEST (ft_svg_render_shapes, + "Test SVG glyph render", + "svgrender", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_shapes) + +DRAW_FUNC(stroke) +CAIRO_TEST (ft_svg_render_stroke, + "Test SVG glyph render", + "svgrender", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_stroke) + +DRAW_FUNC(transform) +CAIRO_TEST (ft_svg_render_transform, + "Test SVG glyph render", + "svgrender", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_transform) diff --git a/local/recipes/libs/cairo/source/test/ft-text-antialias-none.c b/local/recipes/libs/cairo/source/test/ft-text-antialias-none.c new file mode 100644 index 0000000000..64eea64f97 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ft-text-antialias-none.c @@ -0,0 +1,146 @@ +/* + * Copyright © 2006 Jinghua Luo + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * JINGHUA LUO DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Jinghua Luo + * Derived from: + * text-antialias-none.c, + * ft-font-create-for-ft-face.c. + * Original Author: Carl D. Worth + */ +#include "cairo-test.h" +#include + +#define WIDTH 40 +#define HEIGHT 30 +#define TEXT_SIZE 12 + +static cairo_status_t +create_scaled_font (cairo_t * cr, + cairo_scaled_font_t **out) +{ + FcPattern *pattern, *resolved; + FcResult result; + cairo_font_face_t *font_face; + cairo_scaled_font_t *scaled_font; + cairo_font_options_t *font_options; + cairo_matrix_t font_matrix, ctm; + cairo_status_t status; + double pixel_size; + + font_options = cairo_font_options_create (); + + cairo_get_font_options (cr, font_options); + + pattern = FcPatternCreate (); + if (pattern == NULL) + return CAIRO_STATUS_NO_MEMORY; + + FcPatternAddString (pattern, FC_FAMILY, (FcChar8 *) CAIRO_TEST_FONT_FAMILY " Sans"); + FcPatternAddDouble (pattern, FC_SIZE, TEXT_SIZE); + FcConfigSubstitute (NULL, pattern, FcMatchPattern); + + cairo_ft_font_options_substitute (font_options, pattern); + + FcDefaultSubstitute (pattern); + resolved = FcFontMatch (NULL, pattern, &result); + if (resolved == NULL) { + FcPatternDestroy (pattern); + return CAIRO_STATUS_NO_MEMORY; + } + + /* turn antialiasing off */ + FcPatternDel (resolved, FC_ANTIALIAS); + FcPatternAddBool (resolved, FC_ANTIALIAS, FcFalse); + + FcPatternGetDouble (resolved, FC_PIXEL_SIZE, 0, &pixel_size); + + font_face = cairo_ft_font_face_create_for_pattern (resolved); + + cairo_matrix_init_identity (&font_matrix); + cairo_matrix_scale (&font_matrix, pixel_size, pixel_size); + + cairo_get_matrix (cr, &ctm); + + scaled_font = cairo_scaled_font_create (font_face, + &font_matrix, + &ctm, + font_options); + + cairo_font_options_destroy (font_options); + cairo_font_face_destroy (font_face); + FcPatternDestroy (pattern); + FcPatternDestroy (resolved); + + status = cairo_scaled_font_status (scaled_font); + if (status) { + cairo_scaled_font_destroy (scaled_font); + return status; + } + + *out = scaled_font; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_text_extents_t extents; + cairo_scaled_font_t *scaled_font; + cairo_status_t status; + const char black[] = "black", blue[] = "blue"; + + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + status = create_scaled_font (cr, &scaled_font); + if (status) { + return cairo_test_status_from_status (cairo_test_get_context (cr), + status); + } + + cairo_set_scaled_font (cr, scaled_font); + + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + cairo_text_extents (cr, black, &extents); + cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing); + cairo_show_text (cr, black); + cairo_translate (cr, 0, -extents.y_bearing + 1); + + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_text_extents (cr, blue, &extents); + cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing); + cairo_show_text (cr, blue); + + cairo_scaled_font_destroy (scaled_font); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (ft_text_antialias_none, + "Tests text rendering with no antialiasing", + "ft, text", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/ft-text-vertical-layout-type1.c b/local/recipes/libs/cairo/source/test/ft-text-vertical-layout-type1.c new file mode 100644 index 0000000000..c6f26a66ab --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ft-text-vertical-layout-type1.c @@ -0,0 +1,167 @@ +/* + * Copyright © 2006 Jinghua Luo + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * JINGHUA LUO DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Jinghua Luo + * Derived from: + * text-antialias-none.c, + * ft-font-create-for-ft-face.c. + * Original Author: Carl D. Worth + */ +#include "cairo-test.h" +#include + +#define WIDTH 80 +#define HEIGHT 240 +#define TEXT_SIZE 30 + +static cairo_status_t +create_scaled_font (cairo_t * cr, + cairo_scaled_font_t **out) +{ + FcPattern *pattern, *resolved; + FcResult result; + cairo_font_face_t *font_face; + cairo_scaled_font_t *scaled_font; + cairo_font_options_t *font_options; + cairo_matrix_t font_matrix, ctm; + cairo_status_t status; + double pixel_size; + + font_options = cairo_font_options_create (); + + cairo_get_font_options (cr, font_options); + + pattern = FcPatternCreate (); + if (pattern == NULL) + return CAIRO_STATUS_NO_MEMORY; + + FcPatternAddString (pattern, FC_FAMILY, (FcChar8 *)"Nimbus Sans L"); + FcPatternAddDouble (pattern, FC_PIXEL_SIZE, TEXT_SIZE); + FcConfigSubstitute (NULL, pattern, FcMatchPattern); + + cairo_ft_font_options_substitute (font_options, pattern); + + FcDefaultSubstitute (pattern); + resolved = FcFontMatch (NULL, pattern, &result); + if (resolved == NULL) { + FcPatternDestroy (pattern); + return CAIRO_STATUS_NO_MEMORY; + } + + /* set layout to vertical */ + FcPatternDel (resolved, FC_VERTICAL_LAYOUT); + FcPatternAddBool (resolved, FC_VERTICAL_LAYOUT, FcTrue); + + FcPatternGetDouble (resolved, FC_PIXEL_SIZE, 0, &pixel_size); + + font_face = cairo_ft_font_face_create_for_pattern (resolved); + + cairo_matrix_init_translate (&font_matrix, 10, 30); + cairo_matrix_rotate (&font_matrix, M_PI_2/3); + cairo_matrix_scale (&font_matrix, pixel_size, pixel_size); + + cairo_get_matrix (cr, &ctm); + + scaled_font = cairo_scaled_font_create (font_face, + &font_matrix, + &ctm, + font_options); + + cairo_font_options_destroy (font_options); + cairo_font_face_destroy (font_face); + FcPatternDestroy (pattern); + FcPatternDestroy (resolved); + + status = cairo_scaled_font_status (scaled_font); + if (status) { + cairo_scaled_font_destroy (scaled_font); + return status; + } + + *out = scaled_font; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_text_extents_t extents; + cairo_scaled_font_t *scaled_font; + cairo_status_t status; + const char text[] = "i-W"; + double line_width, x, y; + + line_width = cairo_get_line_width (cr); + + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + status = create_scaled_font (cr, &scaled_font); + if (status) { + return cairo_test_status_from_status (cairo_test_get_context (cr), + status); + } + + cairo_set_scaled_font (cr, scaled_font); + cairo_scaled_font_destroy (scaled_font); + + cairo_set_line_width (cr, 1.0); + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + cairo_text_extents (cr, text, &extents); + x = width - (extents.width + extents.x_bearing) - 5; + y = height - (extents.height + extents.y_bearing) - 5; + cairo_move_to (cr, x, y); + cairo_show_text (cr, text); + cairo_rectangle (cr, + x + extents.x_bearing - line_width / 2, + y + extents.y_bearing - line_width / 2, + extents.width + line_width, + extents.height + line_width); + cairo_stroke (cr); + + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_text_extents (cr, text, &extents); + x = -extents.x_bearing + 5; + y = -extents.y_bearing + 5; + cairo_move_to (cr, x, y); + cairo_text_path (cr, text); + cairo_fill (cr); + cairo_rectangle (cr, + x + extents.x_bearing - line_width / 2, + y + extents.y_bearing - line_width / 2, + extents.width + line_width, + extents.height + line_width); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (ft_text_vertical_layout_type1, + "Tests text rendering for vertical layout with Type1 fonts" + "\nCan fail if an incorrect font is loaded---need to bundle the desired font", + "ft, fc, text", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/ft-text-vertical-layout-type3.c b/local/recipes/libs/cairo/source/test/ft-text-vertical-layout-type3.c new file mode 100644 index 0000000000..0cea9dd80e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ft-text-vertical-layout-type3.c @@ -0,0 +1,166 @@ +/* + * Copyright © 2006 Jinghua Luo + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * JINGHUA LUO DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Jinghua Luo + * Derived from: + * text-antialias-none.c, + * ft-font-create-for-ft-face.c. + * Original Author: Carl D. Worth + */ +#include "cairo-test.h" +#include + +#define WIDTH 80 +#define HEIGHT 200 +#define TEXT_SIZE 30 + +static cairo_status_t +create_scaled_font (cairo_t * cr, + cairo_scaled_font_t **out) +{ + FcPattern *pattern, *resolved; + FcResult result; + cairo_font_face_t *font_face; + cairo_scaled_font_t *scaled_font; + cairo_font_options_t *font_options; + cairo_matrix_t font_matrix, ctm; + cairo_status_t status; + double pixel_size; + + font_options = cairo_font_options_create (); + + cairo_get_font_options (cr, font_options); + + pattern = FcPatternCreate (); + if (pattern == NULL) + return CAIRO_STATUS_NO_MEMORY; + + FcPatternAddString (pattern, FC_FAMILY, (FcChar8 *)CAIRO_TEST_FONT_FAMILY " Sans"); + FcPatternAddDouble (pattern, FC_PIXEL_SIZE, TEXT_SIZE); + FcConfigSubstitute (NULL, pattern, FcMatchPattern); + + cairo_ft_font_options_substitute (font_options, pattern); + + FcDefaultSubstitute (pattern); + resolved = FcFontMatch (NULL, pattern, &result); + if (resolved == NULL) { + FcPatternDestroy (pattern); + return CAIRO_STATUS_NO_MEMORY; + } + + /* set layout to vertical */ + FcPatternDel (resolved, FC_VERTICAL_LAYOUT); + FcPatternAddBool (resolved, FC_VERTICAL_LAYOUT, FcTrue); + + FcPatternGetDouble (resolved, FC_PIXEL_SIZE, 0, &pixel_size); + + font_face = cairo_ft_font_face_create_for_pattern (resolved); + + cairo_matrix_init_translate (&font_matrix, 10, 30); + cairo_matrix_rotate (&font_matrix, M_PI_2/3); + cairo_matrix_scale (&font_matrix, pixel_size, pixel_size); + + cairo_get_matrix (cr, &ctm); + + scaled_font = cairo_scaled_font_create (font_face, + &font_matrix, + &ctm, + font_options); + + cairo_font_options_destroy (font_options); + cairo_font_face_destroy (font_face); + FcPatternDestroy (pattern); + FcPatternDestroy (resolved); + + status = cairo_scaled_font_status (scaled_font); + if (status) { + cairo_scaled_font_destroy (scaled_font); + return status; + } + + *out = scaled_font; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_text_extents_t extents; + cairo_scaled_font_t *scaled_font; + cairo_status_t status; + const char text[] = "i-W"; + double line_width, x, y; + + line_width = cairo_get_line_width (cr); + + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + status = create_scaled_font (cr, &scaled_font); + if (status) { + return cairo_test_status_from_status (cairo_test_get_context (cr), + status); + } + + cairo_set_scaled_font (cr, scaled_font); + cairo_scaled_font_destroy (scaled_font); + + cairo_set_line_width (cr, 1.0); + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + cairo_text_extents (cr, text, &extents); + x = width - (extents.width + extents.x_bearing) - 5; + y = height - (extents.height + extents.y_bearing) - 5; + cairo_move_to (cr, x, y); + cairo_show_text (cr, text); + cairo_rectangle (cr, + x + extents.x_bearing - line_width / 2, + y + extents.y_bearing - line_width / 2, + extents.width + line_width, + extents.height + line_width); + cairo_stroke (cr); + + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_text_extents (cr, text, &extents); + x = -extents.x_bearing + 5; + y = -extents.y_bearing + 5; + cairo_move_to (cr, x, y); + cairo_text_path (cr, text); + cairo_fill (cr); + cairo_rectangle (cr, + x + extents.x_bearing - line_width / 2, + y + extents.y_bearing - line_width / 2, + extents.width + line_width, + extents.height + line_width); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (ft_text_vertical_layout_type3, + "Tests text rendering for vertical layout with TrueType fonts", + "ft, fc, text", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/ft-variable-font.c b/local/recipes/libs/cairo/source/test/ft-variable-font.c new file mode 100644 index 0000000000..2adba66dde --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ft-variable-font.c @@ -0,0 +1,127 @@ +/* + * Copyright © 2021 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" +#include + +#define SIZE 200 +#define HEIGHT SIZE +#define WIDTH (SIZE * 1.5) +#define FONT "Noto Sans" + +static cairo_test_status_t +set_variable_font (cairo_t *cr) +{ + cairo_font_options_t *font_options; + cairo_font_face_t *font_face; + FcPattern *pattern; + FcPattern *resolved; + FcChar8 *font_name; + FcBool variable; + FcResult result; + + pattern = FcPatternCreate (); + if (pattern == NULL) + return CAIRO_TEST_NO_MEMORY; + + FcPatternAddString (pattern, FC_FAMILY, (FcChar8 *) FONT); + FcPatternAddBool (pattern, FC_VARIABLE, TRUE); + FcConfigSubstitute (NULL, pattern, FcMatchPattern); + + font_options = cairo_font_options_create (); + cairo_get_font_options (cr, font_options); + cairo_ft_font_options_substitute (font_options, pattern); + + FcDefaultSubstitute (pattern); + resolved = FcFontMatch (NULL, pattern, &result); + if (resolved == NULL) { + FcPatternDestroy (pattern); + return CAIRO_TEST_NO_MEMORY; + } + + if (FcPatternGetString (resolved, FC_FAMILY, 0, &font_name) == FcResultMatch) { + if (strcmp((char*)font_name, FONT) != 0) { + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_test_log (ctx, "Could not find %s font\n", FONT); + return CAIRO_TEST_UNTESTED; + } + } else { + return CAIRO_TEST_FAILURE; + } + if (FcPatternGetBool (resolved, FC_VARIABLE, 0, &variable) == FcResultMatch) { + if (!variable) { + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_test_log (ctx, "Could not find %s font\n", FONT); + return CAIRO_TEST_UNTESTED; + } + } else { + return CAIRO_TEST_FAILURE; + } + + font_face = cairo_ft_font_face_create_for_pattern (resolved); + cairo_set_font_face (cr, font_face); + + cairo_font_options_destroy (font_options); + cairo_font_face_destroy (font_face); + FcPatternDestroy (pattern); + FcPatternDestroy (resolved); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_test_status_t result; + cairo_font_options_t *font_options; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + result = set_variable_font (cr); + if (result != CAIRO_TEST_SUCCESS) + return result; + + font_options = cairo_font_options_create (); + cairo_font_options_set_variations (font_options, "wght=700"); + cairo_set_font_options (cr, font_options); + cairo_font_options_destroy (font_options); + + cairo_set_font_size (cr, SIZE/2); + cairo_move_to (cr, SIZE/8, 0.7 * SIZE); + + cairo_show_text(cr, "Test"); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (ft_variable_font, + "Test variable font", + "ft, font", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/generate_refs.sh b/local/recipes/libs/cairo/source/test/generate_refs.sh new file mode 100755 index 0000000000..e22aa25487 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/generate_refs.sh @@ -0,0 +1,12 @@ +#!/bin/bash + +# A very simple script. But sufficient, hopefully, for our current purposes. + +cat < + */ + +#include "cairo-test.h" + +typedef struct { + cairo_operator_t op; + double tolerance; + cairo_fill_rule_t fill_rule; + double line_width; + cairo_line_cap_t line_cap; + cairo_line_join_t line_join; + double miter_limit; + cairo_matrix_t matrix; + double dash[5]; + double dash_offset; +} settings_t; + +/* Two sets of settings, no defaults */ +static const settings_t settings[] = { + { + CAIRO_OPERATOR_IN, + 2.0, + CAIRO_FILL_RULE_EVEN_ODD, + 7.7, + CAIRO_LINE_CAP_SQUARE, + CAIRO_LINE_JOIN_ROUND, + 3.14, + {2.0, 0.0, 0.0, 2.0, 5.0, 5.0}, + {0.1, 0.2, 0.3, 0.4, 0.5}, + 2.0 + }, + { + CAIRO_OPERATOR_ATOP, + 5.25, + CAIRO_FILL_RULE_WINDING, + 2.17, + CAIRO_LINE_CAP_ROUND, + CAIRO_LINE_JOIN_BEVEL, + 1000.0, + {-3.0, 1.0, 1.0, -3.0, -4, -4}, + {1.0, 2.0, 3.0, 4.0, 5.0}, + 3.0 + } +}; + +static void +settings_set (cairo_t *cr, const settings_t *settings) +{ + cairo_set_operator (cr, settings->op); + cairo_set_tolerance (cr, settings->tolerance); + cairo_set_fill_rule (cr, settings->fill_rule); + cairo_set_line_width (cr, settings->line_width); + cairo_set_line_cap (cr, settings->line_cap); + cairo_set_line_join (cr, settings->line_join); + cairo_set_miter_limit (cr, settings->miter_limit); + cairo_set_matrix (cr, &settings->matrix); + cairo_set_dash (cr, settings->dash, 5, settings->dash_offset); +} + +static int +settings_get (cairo_t *cr, settings_t *settings) +{ + int count; + + settings->op = cairo_get_operator (cr); + settings->tolerance = cairo_get_tolerance (cr); + settings->fill_rule = cairo_get_fill_rule (cr); + settings->line_width = cairo_get_line_width (cr); + settings->line_cap = cairo_get_line_cap (cr); + settings->line_join = cairo_get_line_join (cr); + settings->miter_limit = cairo_get_miter_limit (cr); + cairo_get_matrix (cr, &settings->matrix); + + count = cairo_get_dash_count (cr); + if (count != 5) + return -1; + + cairo_get_dash (cr, settings->dash, &settings->dash_offset); + + return 0; +} + +static int +settings_equal (const settings_t *a, const settings_t *b) +{ + return (a->op == b->op && + a->tolerance == b->tolerance && + a->fill_rule == b->fill_rule && + a->line_width == b->line_width && + a->line_cap == b->line_cap && + a->line_join == b->line_join && + a->miter_limit == b->miter_limit && + a->matrix.xx == b->matrix.xx && + a->matrix.xy == b->matrix.xy && + a->matrix.x0 == b->matrix.x0 && + a->matrix.yx == b->matrix.yx && + a->matrix.yy == b->matrix.yy && + a->matrix.y0 == b->matrix.y0 && + memcmp(a->dash, b->dash, sizeof(a->dash)) == 0 && + a->dash_offset == b->dash_offset); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + settings_t check; + + settings_set (cr, &settings[0]); + + cairo_save (cr); + { + settings_set (cr, &settings[1]); + if (settings_get (cr, &check)) + return CAIRO_TEST_FAILURE; + + if (!settings_equal (&settings[1], &check)) + return CAIRO_TEST_FAILURE; + } + cairo_restore (cr); + + if (settings_get (cr, &check)) + return CAIRO_TEST_FAILURE; + + if (!settings_equal (&settings[0], &check)) + return CAIRO_TEST_FAILURE; + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (get_and_set, + "Tests calls to the most trivial cairo_get and cairo_set functions", + "api", /* keywords */ + NULL, /* requirements */ + 0, 0, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/get-clip.c b/local/recipes/libs/cairo/source/test/get-clip.c new file mode 100644 index 0000000000..f97db3f622 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/get-clip.c @@ -0,0 +1,264 @@ +/* + * Copyright © 2006 Novell, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Novell, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Novell, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * NOVELL, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Robert O'Callahan + */ + +#include "cairo-test.h" +#include + +static cairo_bool_t +check_count (const cairo_test_context_t *ctx, + const char *message, + cairo_rectangle_list_t *list, int expected) +{ + if (list->status != CAIRO_STATUS_SUCCESS) { + cairo_test_log (ctx, "Error: %s; cairo_copy_clip_rectangle_list failed with \"%s\"\n", + message, cairo_status_to_string(list->status)); + return 0; + } + + if (list->num_rectangles == expected) + return 1; + cairo_test_log (ctx, "Error: %s; expected %d rectangles, got %d\n", message, + expected, list->num_rectangles); + return 0; +} + +static cairo_bool_t +check_unrepresentable (const cairo_test_context_t *ctx, const char *message, cairo_rectangle_list_t *list) +{ + if (list->status != CAIRO_STATUS_CLIP_NOT_REPRESENTABLE) { + cairo_test_log (ctx, "Error: %s; cairo_copy_clip_rectangle_list got unexpected result \"%s\"\n" + " (we expected CAIRO_STATUS_CLIP_NOT_REPRESENTABLE)", + message, cairo_status_to_string(list->status)); + return 0; + } + return 1; +} + +static cairo_bool_t +check_rectangles_contain (const cairo_test_context_t *ctx, + const char *message, + cairo_rectangle_list_t *list, + double x, double y, double width, double height) +{ + int i; + + for (i = 0; i < list->num_rectangles; ++i) { + if (list->rectangles[i].x == x && list->rectangles[i].y == y && + list->rectangles[i].width == width && list->rectangles[i].height == height) + return 1; + } + cairo_test_log (ctx, "Error: %s; rectangle list does not contain rectangle %f,%f,%f,%f\n", + message, x, y, width, height); + return 0; +} + +static cairo_bool_t +check_clip_extents (const cairo_test_context_t *ctx, + const char *message, cairo_t *cr, + double x, double y, double width, double height) +{ + double ext_x1, ext_y1, ext_x2, ext_y2; + cairo_clip_extents (cr, &ext_x1, &ext_y1, &ext_x2, &ext_y2); + if (ext_x1 == x && ext_y1 == y && ext_x2 == x + width && ext_y2 == y + height) + return 1; + if (width == 0.0 && height == 0.0 && ext_x1 == ext_x2 && ext_y1 == ext_y2) + return 1; + cairo_test_log (ctx, "Error: %s; clip extents %f,%f,%f,%f should be %f,%f,%f,%f\n", + message, ext_x1, ext_y1, ext_x2 - ext_x1, ext_y2 - ext_y1, + x, y, width, height); + return 0; +} + +#define SIZE 100 + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_surface_t *surface; + cairo_t *cr; + cairo_rectangle_list_t *rectangle_list; + const char *phase; + cairo_bool_t completed = 0; + cairo_status_t status; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, SIZE, SIZE); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + + /* first, test basic stuff. This should not be clipped, it should + return the surface rectangle. */ + phase = "No clip set"; + rectangle_list = cairo_copy_clip_rectangle_list (cr); + if (! check_count (ctx, phase, rectangle_list, 1) || + ! check_clip_extents (ctx, phase, cr, 0, 0, SIZE, SIZE) || + ! check_rectangles_contain (ctx, phase, rectangle_list, 0, 0, SIZE, SIZE)) + { + goto FAIL; + } + cairo_rectangle_list_destroy (rectangle_list); + + /* We should get the same results after applying a clip that contains the + existing clip. */ + phase = "Clip beyond surface extents"; + cairo_save (cr); + cairo_rectangle (cr, -10, -10, SIZE + 20 , SIZE + 20); + cairo_clip (cr); + rectangle_list = cairo_copy_clip_rectangle_list (cr); + if (! check_count (ctx, phase, rectangle_list, 1) || + ! check_clip_extents (ctx, phase, cr, 0, 0, SIZE, SIZE) || + ! check_rectangles_contain (ctx, phase, rectangle_list, 0, 0, SIZE, SIZE)) + { + goto FAIL; + } + cairo_rectangle_list_destroy (rectangle_list); + cairo_restore (cr); + + /* Test simple clip rect. */ + phase = "Simple clip rect"; + cairo_save (cr); + cairo_rectangle (cr, 10, 10, 80, 80); + cairo_clip (cr); + rectangle_list = cairo_copy_clip_rectangle_list (cr); + if (! check_count (ctx, phase, rectangle_list, 1) || + ! check_clip_extents (ctx, phase, cr, 10, 10, 80, 80) || + ! check_rectangles_contain (ctx, phase, rectangle_list, 10, 10, 80, 80)) + { + goto FAIL; + } + cairo_rectangle_list_destroy (rectangle_list); + cairo_restore (cr); + + /* Test everything clipped out. */ + phase = "All clipped out"; + cairo_save (cr); + cairo_clip (cr); + rectangle_list = cairo_copy_clip_rectangle_list (cr); + if (! check_count (ctx, phase, rectangle_list, 0) || + ! check_clip_extents (ctx, phase, cr, 0, 0, 0, 0)) + { + goto FAIL; + } + cairo_rectangle_list_destroy (rectangle_list); + cairo_restore (cr); + + /* test two clip rects */ + phase = "Two clip rects"; + cairo_save (cr); + cairo_rectangle (cr, 10, 10, 10, 10); + cairo_rectangle (cr, 20, 20, 10, 10); + cairo_clip (cr); + cairo_rectangle (cr, 15, 15, 10, 10); + cairo_clip (cr); + rectangle_list = cairo_copy_clip_rectangle_list (cr); + if (! check_count (ctx, phase, rectangle_list, 2) || + ! check_clip_extents (ctx, phase, cr, 15, 15, 10, 10) || + ! check_rectangles_contain (ctx, phase, rectangle_list, 15, 15, 5, 5) || + ! check_rectangles_contain (ctx, phase, rectangle_list, 20, 20, 5, 5)) + { + goto FAIL; + } + cairo_rectangle_list_destroy (rectangle_list); + cairo_restore (cr); + + /* test non-rectangular clip */ + phase = "Nonrectangular clip"; + cairo_save (cr); + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, 100, 100); + cairo_line_to (cr, 100, 0); + cairo_close_path (cr); + cairo_clip (cr); + rectangle_list = cairo_copy_clip_rectangle_list (cr); + /* can't get this in one tight user-space rectangle */ + if (! check_unrepresentable (ctx, phase, rectangle_list) || + ! check_clip_extents (ctx, phase, cr, 0, 0, 100, 100)) + { + goto FAIL; + } + cairo_rectangle_list_destroy (rectangle_list); + cairo_restore (cr); + + phase = "User space, simple scale, getting clip with same transform"; + cairo_save (cr); + cairo_scale (cr, 2, 2); + cairo_rectangle (cr, 5, 5, 40, 40); + cairo_clip (cr); + rectangle_list = cairo_copy_clip_rectangle_list (cr); + if (! check_count (ctx, phase, rectangle_list, 1) || + ! check_clip_extents (ctx, phase, cr, 5, 5, 40, 40) || + ! check_rectangles_contain (ctx, phase, rectangle_list, 5, 5, 40, 40)) + { + goto FAIL; + } + cairo_rectangle_list_destroy (rectangle_list); + cairo_restore (cr); + + phase = "User space, simple scale, getting clip with no transform"; + cairo_save (cr); + cairo_save (cr); + cairo_scale (cr, 2, 2); + cairo_rectangle (cr, 5, 5, 40, 40); + cairo_restore (cr); + cairo_clip (cr); + rectangle_list = cairo_copy_clip_rectangle_list (cr); + if (! check_count (ctx, phase, rectangle_list, 1) || + ! check_clip_extents (ctx, phase, cr, 10, 10, 80, 80) || + ! check_rectangles_contain (ctx, phase, rectangle_list, 10, 10, 80, 80)) + { + goto FAIL; + } + cairo_rectangle_list_destroy (rectangle_list); + cairo_restore (cr); + + phase = "User space, rotation, getting clip with no transform"; + cairo_save (cr); + cairo_save (cr); + cairo_rotate (cr, 12); + cairo_rectangle (cr, 5, 5, 40, 40); + cairo_restore (cr); + cairo_clip (cr); + rectangle_list = cairo_copy_clip_rectangle_list (cr); + if (! check_unrepresentable (ctx, phase, rectangle_list)) + goto FAIL; + + completed = 1; +FAIL: + cairo_rectangle_list_destroy (rectangle_list); + status = cairo_status (cr); + cairo_destroy (cr); + + if (!completed) + return CAIRO_TEST_FAILURE; + + return cairo_test_status_from_status (ctx, status); +} + +CAIRO_TEST (get_clip, + "Test cairo_copy_clip_rectangle_list and cairo_clip_extents", + "clip, extents", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/get-group-target.c b/local/recipes/libs/cairo/source/test/get-group-target.c new file mode 100644 index 0000000000..5aff19b298 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/get-group-target.c @@ -0,0 +1,85 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define SIZE 8 +#define PAD 2 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *group; + double x, y; + + /* First paint background in blue. */ + cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); + cairo_paint (cr); + + /* Then clip so that the group surface ends up smaller than the + * original surface. */ + cairo_rectangle (cr, PAD, PAD, width - 2 * PAD, height - 2 * PAD); + cairo_clip (cr); + + /* Paint the clipped region in red (which should all be overwritten later). */ + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + cairo_paint (cr); + + /* Redirect to a new group and get that surface. */ + cairo_push_group (cr); + group = cairo_get_group_target (cr); + + /* Then paint in green what we query the group surface size to be. */ + cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); + cairo_surface_get_device_offset (group, &x, &y); + /* Or rather, we calculate the group surface size based on the + * only thing we can query which is the device offset. Ideally, + * the size would always be the minimal (width - 2 * PAD, height - + * 2 * PAD) based on the clip. But currently, group targets are + * created oversized for paginated surfaces, so we only subtract + * anything from the size if there is a non-zero device offfset. + * + * The calculation below might also be less confusing if the sign + * convention on the device offset were reversed, but it is what + * it is. Oh well. */ + cairo_rectangle (cr, + -x, -y, + width + 2 * x, + height + 2 * y); + cairo_fill (cr); + + /* Finish up the group painting. */ + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (get_group_target, + "Test of both cairo_get_group_target and cairo_surface_get_device_offset", + "api", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/get-path-extents.c b/local/recipes/libs/cairo/source/test/get-path-extents.c new file mode 100644 index 0000000000..080fc34c49 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/get-path-extents.c @@ -0,0 +1,443 @@ +/* + * Copyright © 2006 Novell, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Novell, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Novell, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * NOVELL, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Robert O'Callahan + */ + +#include "cairo-test.h" +#include +#include + +enum ExtentsType { FILL, STROKE, PATH }; + +enum Relation { EQUALS, APPROX_EQUALS, CONTAINS }; + + +static cairo_bool_t within_tolerance(double x1, double y1, + double x2, double y2, + double expected_x1, double expected_y1, + double expected_x2, double expected_y2, + double tolerance) +{ + return (fabs (expected_x1 - x1) < tolerance && + fabs (expected_y1 - y1) < tolerance && + fabs (expected_x2 - x2) < tolerance && + fabs (expected_y2 - y2) < tolerance); +} + +static cairo_bool_t +check_extents (const cairo_test_context_t *ctx, + const char *message, cairo_t *cr, enum ExtentsType type, + enum Relation relation, + double x, double y, double width, double height) +{ + double ext_x1, ext_y1, ext_x2, ext_y2; + const char *type_string; + const char *relation_string; + + switch (type) { + default: + case FILL: + type_string = "fill"; + cairo_fill_extents (cr, &ext_x1, &ext_y1, &ext_x2, &ext_y2); + break; + case STROKE: + type_string = "stroke"; + cairo_stroke_extents (cr, &ext_x1, &ext_y1, &ext_x2, &ext_y2); + break; + case PATH: + type_string = "path"; + cairo_path_extents (cr, &ext_x1, &ext_y1, &ext_x2, &ext_y2); + break; + } + + /* ignore results after an error occurs */ + if (cairo_status (cr)) + return 1; + + switch (relation) { + default: + case EQUALS: + relation_string = "equal"; + if (within_tolerance(x, y, x + width, y + height, + ext_x1, ext_y1, ext_x2, ext_y2, + cairo_get_tolerance(cr))) + return 1; + break; + case APPROX_EQUALS: + relation_string = "approx. equal"; + if (within_tolerance(x, y, x + width, y + height, + ext_x1, ext_y1, ext_x2, ext_y2, + 1.)) + return 1; + break; + case CONTAINS: + relation_string = "contain"; + if (width == 0 || height == 0) { + /* odd test that doesn't really test anything... */ + return 1; + } + if (ext_x1 <= x && ext_y1 <= y && ext_x2 >= x + width && ext_y2 >= y + height) + return 1; + break; + } + + cairo_test_log (ctx, "Error: %s; %s extents (%g, %g) x (%g, %g) should %s (%g, %g) x (%g, %g)\n", + message, type_string, + ext_x1, ext_y1, ext_x2 - ext_x1, ext_y2 - ext_y1, + relation_string, + x, y, width, height); + return 0; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *surface; + cairo_t *cr2; + const char *phase; + const char string[] = "The quick brown fox jumps over the lazy dog."; + cairo_text_extents_t extents, scaled_font_extents; + cairo_status_t status; + int errors = 0; + + surface = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_COLOR, 1000, 1000); + /* don't use cr accidentally */ + cr = NULL; + cr2 = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_line_width (cr2, 10); + cairo_set_line_join (cr2, CAIRO_LINE_JOIN_MITER); + cairo_set_miter_limit (cr2, 100); + + phase = "No path"; + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 0, 0, 0, 0); + + cairo_save (cr2); + + cairo_new_path (cr2); + cairo_move_to (cr2, 200, 400); + cairo_close_path (cr2); + phase = "Degenerate closed path"; + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 200, 400, 0, 0); + + cairo_new_path (cr2); + cairo_move_to (cr2, 200, 400); + cairo_rel_line_to (cr2, 0., 0.); + phase = "Degenerate line"; + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 200, 400, 0, 0); + + cairo_new_path (cr2); + cairo_move_to (cr2, 200, 400); + cairo_rel_curve_to (cr2, 0., 0., 0., 0., 0., 0.); + phase = "Degenerate curve"; + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 200, 400, 0, 0); + + cairo_new_path (cr2); + cairo_arc (cr2, 200, 400, 0., 0, 2 * M_PI); + phase = "Degenerate arc (R=0)"; + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 200, 400, 0, 0); + + cairo_new_path (cr2); + cairo_arc_negative (cr2, 200, 400, 0., 0, 2 * M_PI); + phase = "Degenerate negative arc (R=0)"; + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 200, 400, 0, 0); + + cairo_new_path (cr2); + cairo_arc (cr2, 200, 400, 10., 0, 0); + phase = "Degenerate arc (Θ=0)"; + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 210, 400, 0, 0); + + cairo_new_path (cr2); + cairo_arc_negative (cr2, 200, 400, 10., 0, 0); + phase = "Degenerate negative arc (Θ=0)"; + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 210, 400, 0, 0); + + cairo_new_path (cr2); + cairo_restore (cr2); + + /* Test that with CAIRO_LINE_CAP_ROUND, we get "dots" from + * cairo_move_to; cairo_rel_line_to(0,0) */ + cairo_save (cr2); + + cairo_set_line_cap (cr2, CAIRO_LINE_CAP_ROUND); + cairo_set_line_width (cr2, 20); + + cairo_move_to (cr2, 200, 400); + cairo_rel_line_to (cr2, 0, 0); + phase = "Single 'dot'"; + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 190, 390, 20, 20); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 200, 400, 0, 0); + + /* Add another dot without starting a new path */ + cairo_move_to (cr2, 100, 500); + cairo_rel_line_to (cr2, 0, 0); + phase = "Multiple 'dots'"; + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 90, 390, 120, 120); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 100, 400, 100, 100); + + cairo_new_path (cr2); + + cairo_restore (cr2); + + /* https://bugs.freedesktop.org/show_bug.cgi?id=7965 */ + phase = "A horizontal, open path"; + cairo_save (cr2); + cairo_set_line_cap (cr2, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr2, CAIRO_LINE_JOIN_ROUND); + cairo_move_to (cr2, 0, 180); + cairo_line_to (cr2, 750, 180); + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, -5, 175, 760, 10); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 0, 180, 750, 0); + cairo_new_path (cr2); + cairo_restore (cr2); + + phase = "A vertical, open path"; + cairo_save (cr2); + cairo_set_line_cap (cr2, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr2, CAIRO_LINE_JOIN_ROUND); + cairo_new_path (cr2); + cairo_move_to (cr2, 180, 0); + cairo_line_to (cr2, 180, 750); + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 175, -5, 10, 760); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 180, 0, 0, 750); + cairo_new_path (cr2); + cairo_restore (cr2); + + phase = "A degenerate open path"; + cairo_save (cr2); + cairo_set_line_cap (cr2, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr2, CAIRO_LINE_JOIN_ROUND); + cairo_new_path (cr2); + cairo_move_to (cr2, 180, 0); + cairo_line_to (cr2, 180, 0); + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 0, 0, 0, 0); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 175, -5, 10, 10); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 180, 0, 0, 0); + cairo_new_path (cr2); + cairo_restore (cr2); + + phase = "Simple rect"; + cairo_save (cr2); + cairo_rectangle (cr2, 10, 10, 80, 80); + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 10, 10, 80, 80); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 5, 5, 90, 90); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 10, 10, 80, 80); + cairo_new_path (cr2); + cairo_restore (cr2); + + phase = "Two rects"; + cairo_save (cr2); + cairo_rectangle (cr2, 10, 10, 10, 10); + cairo_rectangle (cr2, 20, 20, 10, 10); + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 10, 10, 20, 20); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 5, 5, 30, 30); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 10, 10, 20, 20); + cairo_new_path (cr2); + cairo_restore (cr2); + + phase = "Triangle"; + cairo_save (cr2); + cairo_move_to (cr2, 10, 10); + cairo_line_to (cr2, 90, 90); + cairo_line_to (cr2, 90, 10); + cairo_close_path (cr2); + /* miter joins protrude 5*(1+sqrt(2)) above the top-left corner and to + the right of the bottom-right corner */ + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 10, 10, 80, 80); + errors += !check_extents (ctx, phase, cr2, STROKE, CONTAINS, 0, 5, 95, 95); + errors += !check_extents (ctx, phase, cr2, PATH, CONTAINS, 10, 10, 80, 80); + cairo_new_path (cr2); + cairo_restore (cr2); + + cairo_save (cr2); + + cairo_set_line_width (cr2, 4); + + cairo_rectangle (cr2, 10, 10, 30, 30); + cairo_rectangle (cr2, 25, 10, 15, 30); + + cairo_set_fill_rule (cr2, CAIRO_FILL_RULE_EVEN_ODD); + phase = "EVEN_ODD overlapping rectangles"; + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 10, 10, 15, 30); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 8, 8, 34, 34); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 10, 10, 30, 30); + + /* Test other fill rule with the same path. */ + + cairo_set_fill_rule (cr2, CAIRO_FILL_RULE_WINDING); + phase = "WINDING overlapping rectangles"; + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 10, 10, 30, 30); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 8, 8, 34, 34); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 10, 10, 30, 30); + + /* Now, change the direction of the second rectangle and test both + * fill rules again. */ + cairo_new_path (cr2); + cairo_rectangle (cr2, 10, 10, 30, 30); + cairo_rectangle (cr2, 25, 40, 15, -30); + + cairo_set_fill_rule (cr2, CAIRO_FILL_RULE_EVEN_ODD); + phase = "EVEN_ODD overlapping rectangles"; + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 10, 10, 15, 30); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 8, 8, 34, 34); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 10, 10, 30, 30); + + /* Test other fill rule with the same path. */ + + cairo_set_fill_rule (cr2, CAIRO_FILL_RULE_WINDING); + phase = "WINDING overlapping rectangles"; + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 10, 10, 15, 30); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 8, 8, 34, 34); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 10, 10, 30, 30); + + cairo_new_path (cr2); + + cairo_restore (cr2); + + /* https://bugs.freedesktop.org/show_bug.cgi?id=7245 */ + phase = "Arc"; + cairo_save (cr2); + cairo_arc (cr2, 250.0, 250.0, 157.0, 5.147, 3.432); + cairo_set_line_width (cr2, 154.0); + errors += !check_extents (ctx, phase, cr2, STROKE, APPROX_EQUALS, 16, 38, 468, 446); + cairo_new_path (cr2); + cairo_restore (cr2); + + phase = "Text"; + cairo_save (cr2); + cairo_select_font_face (cr2, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr2, 12); + cairo_text_extents (cr2, string, &extents); + /* double check that the two methods of measuring the text agree... */ + cairo_scaled_font_text_extents (cairo_get_scaled_font (cr2), + string, + &scaled_font_extents); + if (memcmp (&extents, &scaled_font_extents, sizeof (extents))) { + cairo_test_log (ctx, "Error: cairo_text_extents() does not match cairo_scaled_font_text_extents() - font extents (%f, %f) x (%f, %f) should be (%f, %f) x (%f, %f)\n", + scaled_font_extents.x_bearing, + scaled_font_extents.y_bearing, + scaled_font_extents.width, + scaled_font_extents.height, + extents.x_bearing, + extents.y_bearing, + extents.width, + extents.height); + errors++; + } + + cairo_move_to (cr2, -extents.x_bearing, -extents.y_bearing); + cairo_text_path (cr2, string); + cairo_set_line_width (cr2, 2.0); + /* XXX: We'd like to be able to use EQUALS here, but currently + * when hinting is enabled freetype returns integer extents. See + * https://cairographics.org/todo */ + errors += !check_extents (ctx, phase, cr2, FILL, APPROX_EQUALS, + 0, 0, extents.width, extents.height); + errors += !check_extents (ctx, phase, cr2, STROKE, APPROX_EQUALS, + -1, -1, extents.width+2, extents.height+2); + errors += !check_extents (ctx, phase, cr2, PATH, APPROX_EQUALS, + 0, 0, extents.width, extents.height); + cairo_new_path (cr2); + cairo_restore (cr2); + + phase = "User space, simple scale, getting extents with same transform"; + cairo_save (cr2); + cairo_scale (cr2, 2, 2); + cairo_rectangle (cr2, 5, 5, 40, 40); + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 5, 5, 40, 40); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 0, 0, 50, 50); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 5, 5, 40, 40); + cairo_new_path (cr2); + cairo_restore (cr2); + + phase = "User space, simple scale, getting extents with no transform"; + cairo_save (cr2); + cairo_save (cr2); + cairo_scale (cr2, 2, 2); + cairo_rectangle (cr2, 5, 5, 40, 40); + cairo_restore (cr2); + errors += !check_extents (ctx, phase, cr2, FILL, EQUALS, 10, 10, 80, 80); + errors += !check_extents (ctx, phase, cr2, STROKE, EQUALS, 5, 5, 90, 90); + errors += !check_extents (ctx, phase, cr2, PATH, EQUALS, 10, 10, 80, 80); + cairo_new_path (cr2); + cairo_restore (cr2); + + phase = "User space, rotation, getting extents with transform"; + cairo_save (cr2); + cairo_rectangle (cr2, -50, -50, 50, 50); + cairo_rotate (cr2, -M_PI/4); + /* the path in user space is now (nearly) the square rotated by + 45 degrees about the origin. Thus its x1 and x2 are both nearly 0. + This should show any bugs where we just transform device-space + x1,y1 and x2,y2 to get the extents. */ + /* The largest axis-aligned square inside the rotated path has + side lengths 50*sqrt(2), so a bit over 35 on either side of + the axes. With the stroke width added to the rotated path, + the largest axis-aligned square is a bit over 38 on either side of + the axes. */ + errors += !check_extents (ctx, phase, cr2, FILL, CONTAINS, -35, -35, 35, 35); + errors += !check_extents (ctx, phase, cr2, STROKE, CONTAINS, -38, -38, 38, 38); + errors += !check_extents (ctx, phase, cr2, PATH, CONTAINS, -35, -35, 35, 35); + cairo_new_path (cr2); + cairo_restore (cr2); + + status = cairo_status (cr2); + cairo_destroy (cr2); + + if (status) + return cairo_test_status_from_status (ctx, status); + + return errors == 0 ? CAIRO_TEST_SUCCESS : CAIRO_TEST_FAILURE; +} + +CAIRO_TEST (get_path_extents, + "Test cairo_fill_extents and cairo_stroke_extents", + "extents, path", /* keywords */ + NULL, /* requirements */ + 0, 0, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/get-xrender-format.c b/local/recipes/libs/cairo/source/test/get-xrender-format.c new file mode 100644 index 0000000000..3228d57c60 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/get-xrender-format.c @@ -0,0 +1,122 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#include "cairo-xlib.h" +#include "cairo-xlib-xrender.h" + +#include "cairo-boilerplate-xlib.h" + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + Display *dpy; + XRenderPictFormat *orig_format, *format; + cairo_surface_t *surface; + Pixmap pixmap; + int screen; + cairo_test_status_t result; + + result = CAIRO_TEST_UNTESTED; + + if (! cairo_test_is_target_enabled (ctx, "xlib")) + goto CLEANUP_TEST; + + dpy = XOpenDisplay (NULL); + if (! dpy) { + cairo_test_log (ctx, "Error: Cannot open display: %s, skipping.\n", + XDisplayName (NULL)); + goto CLEANUP_TEST; + } + + result = CAIRO_TEST_FAILURE; + + screen = DefaultScreen (dpy); + + cairo_test_log (ctx, "Testing with image surface.\n"); + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 1); + + format = cairo_xlib_surface_get_xrender_format (surface); + if (format != NULL) { + cairo_test_log (ctx, "Error: expected NULL for image surface\n"); + goto CLEANUP_SURFACE; + } + + cairo_surface_destroy (surface); + + cairo_test_log (ctx, "Testing with non-xrender xlib surface.\n"); + + pixmap = XCreatePixmap (dpy, DefaultRootWindow (dpy), + 1, 1, DefaultDepth (dpy, screen)); + surface = cairo_xlib_surface_create (dpy, pixmap, + DefaultVisual (dpy, screen), + 1, 1); + orig_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen)); + format = cairo_xlib_surface_get_xrender_format (surface); + if (format != orig_format) { + cairo_test_log (ctx, "Error: did not receive the same format as XRenderFindVisualFormat\n"); + goto CLEANUP_PIXMAP; + } + cairo_surface_destroy (surface); + XFreePixmap (dpy, pixmap); + + cairo_test_log (ctx, "Testing with xlib xrender surface.\n"); + + orig_format = XRenderFindStandardFormat (dpy, PictStandardARGB32); + pixmap = XCreatePixmap (dpy, DefaultRootWindow (dpy), + 1, 1, 32); + surface = cairo_xlib_surface_create_with_xrender_format (dpy, + pixmap, + DefaultScreenOfDisplay (dpy), + orig_format, + 1, 1); + format = cairo_xlib_surface_get_xrender_format (surface); + if (format != orig_format) { + cairo_test_log (ctx, "Error: did not receive the same format originally set\n"); + goto CLEANUP_PIXMAP; + } + + result = CAIRO_TEST_SUCCESS; + + CLEANUP_PIXMAP: + XFreePixmap (dpy, pixmap); + CLEANUP_SURFACE: + cairo_surface_destroy (surface); + + XCloseDisplay (dpy); + + CLEANUP_TEST: + return result; +} + +CAIRO_TEST (get_xrender_format, + "Check XRender specific API", + "xrender, api", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/global.jb2 b/local/recipes/libs/cairo/source/test/global.jb2 new file mode 100644 index 0000000000..5a15498535 Binary files /dev/null and b/local/recipes/libs/cairo/source/test/global.jb2 differ diff --git a/local/recipes/libs/cairo/source/test/glyph-cache-pressure.c b/local/recipes/libs/cairo/source/test/glyph-cache-pressure.c new file mode 100644 index 0000000000..eb4f7c5c2e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/glyph-cache-pressure.c @@ -0,0 +1,81 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" +#include "cairo-boilerplate-scaled-font.h" + +#define TEXT_SIZE 12 + +/* Bug history + * + * 2006-06-22 Carl Worth + * + * This is a test case to demonstrate the following bug in the xlib backend: + * + * Some characters aren't displayed when using xlib (cache usage missing freeze/thaw) + * https://bugs.freedesktop.org/show_bug.cgi?id=6955 + * + * We replicate this bug by using the cairo_scaled_font_set_max_glyphs_per_font + * function to artificially induce cache pressure. (This function was added + * for this very purpose.) + * + * 2006-06-22 Carl Worth + * + * Bug was simple enough to solve by just adding a freeze/thaw pair + * around the scaled_font's glyph cache in + * _cairo_xlib_surface_show_glyphs, (I went ahead and added + * _cairo_sacled_font_freeze/thaw_cache functions for this). + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + + cairo_boilerplate_scaled_font_set_max_glyphs_cached (cairo_get_scaled_font (cr), 1); + + cairo_move_to (cr, 1, TEXT_SIZE); + cairo_show_text (cr, "the five boxing wizards jump quickly"); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (glyph_cache_pressure, + "Ensure that all backends behave well under artificial glyph cache pressure", + "stress", /* keywords */ + NULL, /* requirements */ + 223, TEXT_SIZE + 4, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/glyph-path.c b/local/recipes/libs/cairo/source/test/glyph-path.c new file mode 100644 index 0000000000..b61f193a19 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/glyph-path.c @@ -0,0 +1,82 @@ +/* + * Copyright © 2024 worldiety GmbH + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * worldiety not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. worldiety makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * WORLDIETY DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL WORLDIETY BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Heiko Lewin + */ +#include "cairo-test.h" + +#define WIDTH 128 +#define HEIGHT 64 + + +static cairo_test_status_t +draw(cairo_t *cr, int width, int height) { + cairo_glyph_t *glyphs = NULL; + int num_glyphs = 0; + cairo_path_t *path = NULL, *path2 = NULL; + (void)width; + (void)height; + + /* black on white color */ + cairo_set_source_rgb(cr, 1., 1., 1.); + cairo_paint(cr); + cairo_set_source_rgb(cr, 0, 0, 0); + + + /* translate to some point well outside the surface */ + cairo_translate(cr, -width * 100, 0); + + /* create a simple path to illustrate the correct behaviour */ + cairo_rectangle(cr, 0, 0, width/2.0, 2); + path = cairo_copy_path(cr); + cairo_new_path(cr); + + /* create another path from glyphs - this is broken when clipping to early */ + { + cairo_set_font_size(cr, 32); + cairo_scaled_font_t *sf = cairo_get_scaled_font(cr); + cairo_scaled_font_text_to_glyphs(sf, 0, 0, "Test", 4, &glyphs, &num_glyphs, 0, 0, 0); + cairo_glyph_path(cr, glyphs, num_glyphs); + path2 = cairo_copy_path(cr); + } + + /* translate to a visible point and draw both paths */ + cairo_identity_matrix(cr); + cairo_translate(cr, width/4.0, 48); + + cairo_append_path(cr, path); + cairo_append_path(cr, path2); + cairo_fill(cr); + + cairo_path_destroy(path); + cairo_path_destroy(path2); + free(glyphs); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (glyph_path, + "Tests cairo_glyph_path", + "text, glyph, path", /* keywords */ + "target=raster", /* should be enough */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/gradient-alpha.c b/local/recipes/libs/cairo/source/test/gradient-alpha.c new file mode 100644 index 0000000000..24cd3245f9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/gradient-alpha.c @@ -0,0 +1,56 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *gradient; + + gradient = cairo_pattern_create_linear (0, -height, + 0, height); + cairo_pattern_add_color_stop_rgba (gradient, 0.0, + 1.0, 0.0, 0.0, + 1.0); + cairo_pattern_add_color_stop_rgba (gradient, 1.0, + 0.0, 0.0, 1.0, + 0.5); + + cairo_set_source (cr, gradient); + + cairo_paint (cr); + + cairo_pattern_destroy (gradient); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (gradient_alpha, + "Tests drawing of a gradient with various alpha values in the color stops", + "gradient, alpha", /* keywords */ + NULL, /* requirements */ + 10, 10, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/gradient-constant-alpha.c b/local/recipes/libs/cairo/source/test/gradient-constant-alpha.c new file mode 100644 index 0000000000..7640b6eb5a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/gradient-constant-alpha.c @@ -0,0 +1,61 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + * Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *gradient; + + gradient = cairo_pattern_create_linear (0, 0, + 0, height); + cairo_pattern_add_color_stop_rgba (gradient, 0.0, + 1.0, 0.0, 0.0, + 0.5); + cairo_pattern_add_color_stop_rgba (gradient, 0.0, + 0.0, 1.0, 0.0, + 0.5); + cairo_pattern_add_color_stop_rgba (gradient, 1.0, + 0.0, 0.0, 1.0, + 0.5); + + cairo_set_source (cr, gradient); + + cairo_paint (cr); + + cairo_pattern_destroy (gradient); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (gradient_constant_alpha, + "Tests drawing of a gradient with constant alpha values in the color stops", + "gradient, alpha", /* keywords */ + NULL, + 10, 10, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/gradient-scale-crash.c b/local/recipes/libs/cairo/source/test/gradient-scale-crash.c new file mode 100644 index 0000000000..b265e429b6 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/gradient-scale-crash.c @@ -0,0 +1,55 @@ +/* + * Copyright © 2024 Koichi Akabe + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Koichi Akabe + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *p = cairo_pattern_create_linear (0, 0, 0, 100); + + cairo_pattern_add_color_stop_rgb (p, 0, 1, 1, 1); + cairo_pattern_add_color_stop_rgb (p, 1, 1, 0, 0); + + cairo_matrix_t m; + cairo_matrix_init (&m, 100000, 0, 0, 100000, 0, 0); + cairo_pattern_set_matrix (p, &m); + + cairo_set_source (cr, p); + cairo_rectangle (cr, 0, 0, 100, 100); + cairo_paint (cr); + + cairo_pattern_destroy (p); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (gradient_scale_crash, + "Verify fix for https://gitlab.freedesktop.org/cairo/cairo/-/issues/789", + "gradient, pattern", /* keywords */ + NULL, /* requirements */ + 0, 0, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/gradient-zero-stops-mask.c b/local/recipes/libs/cairo/source/test/gradient-zero-stops-mask.c new file mode 100644 index 0000000000..b2a10ec341 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/gradient-zero-stops-mask.c @@ -0,0 +1,59 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2007 Brian Ewins + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Brian Ewins + * Contributor(s): + * Andrea Canciani + */ + +#include "cairo-test.h" + +/* This test case is designed to exercise the opaque test for + * gradients with no stop. + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pat; + + cairo_set_source_rgb (cr, 1., 0., 0.); + + pat = cairo_pattern_create_linear (0., 0., 1., 1.); + cairo_mask (cr, pat); + cairo_pattern_destroy (pat); + + pat = cairo_pattern_create_radial (0., 0., 0., 1., 1., 1.); + cairo_mask (cr, pat); + cairo_pattern_destroy (pat); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (gradient_zero_stops_mask, + "Verifies that gradients with no stops are considered clear.", + "gradient", /* keywords */ + NULL, /* requirements */ + 2, 2, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/gradient-zero-stops.c b/local/recipes/libs/cairo/source/test/gradient-zero-stops.c new file mode 100644 index 0000000000..57a91c536e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/gradient-zero-stops.c @@ -0,0 +1,58 @@ +/* + * Copyright © 2007 Brian Ewins + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Brian Ewins + */ + +#include "cairo-test.h" + +/* This test case is designed to exercise the following bug: + * + * Crash when trying to paint gradient with no stops + * https://bugzilla.mozilla.org/show_bug.cgi?id=407104 + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pat; + + pat = cairo_pattern_create_linear (0., 0., 1., 1.); + cairo_set_source (cr, pat); + cairo_paint (cr); + cairo_pattern_destroy (pat); + + pat = cairo_pattern_create_radial (0., 0., 0., 1., 1., 1.); + cairo_set_source (cr, pat); + cairo_paint (cr); + cairo_pattern_destroy (pat); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (gradient_zero_stops, + "Verifies that gradients with no stops don't cause problems.", + "gradient", /* keywords */ + NULL, /* requirements */ + 2, 2, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/group-clip.c b/local/recipes/libs/cairo/source/test/group-clip.c new file mode 100644 index 0000000000..b99d8617e4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/group-clip.c @@ -0,0 +1,57 @@ +/* + * Copyright © Chris Wilson, 2008 + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Chris Wilson + * Larry Ewing + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_rectangle (cr, 25, 25, width, height); + cairo_clip_preserve (cr); + cairo_push_group (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_fill (cr); + cairo_rectangle (cr, 0, 0, width, height); + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + cairo_reset_clip (cr); + cairo_clip_preserve (cr); + cairo_set_source_rgba (cr, 1, 0, 0, .5); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (group_clip, + "test preserving paths across groups", + "group", /* keywords */ + NULL, /* requirements */ + 40 + 25, 40 + 25, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/group-paint.c b/local/recipes/libs/cairo/source/test/group-paint.c new file mode 100644 index 0000000000..38544856fe --- /dev/null +++ b/local/recipes/libs/cairo/source/test/group-paint.c @@ -0,0 +1,48 @@ +/* + * Copyright © Chris Wilson, 2008 + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_push_group (cr); + + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + cairo_pop_group_to_source (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (group_paint, + "test push_group(); pop_group_to_source(); set_operator(SOURCE); paint();", + "group", /* keywords */ + NULL, /* requirements */ + 10, 10, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/group-state.c b/local/recipes/libs/cairo/source/test/group-state.c new file mode 100644 index 0000000000..a96b2e3d09 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/group-state.c @@ -0,0 +1,96 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2011 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +#define CHECK_STATUS(status) \ + do { \ + if (cairo_status (cr) != (status)) { \ + cairo_test_log (ctx, "Expected status: %s\n", \ + cairo_status_to_string (status)); \ + cairo_test_log (ctx, "Actual status: %s\n", \ + cairo_status_to_string (cairo_status (cr))); \ + result = CAIRO_TEST_FAILURE; \ + } \ + } while (0) + +static void +reinit_cairo (cairo_t **cr) +{ + if (*cr) + cairo_destroy (*cr); + + *cr = cairo_create (cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 1)); + cairo_surface_destroy (cairo_get_target (*cr)); +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_t *cr; + cairo_test_status_t result = CAIRO_TEST_SUCCESS; + + cr = NULL; + + reinit_cairo (&cr); + + /* cairo_restore() must fail with CAIRO_STATUS_INVALID_RESTORE if + * no matching cairo_save() call has been performed. */ + cairo_test_log (ctx, "Checking save(); push(); restore();\n"); + cairo_save (cr); + CHECK_STATUS (CAIRO_STATUS_SUCCESS); + cairo_push_group (cr); + CHECK_STATUS (CAIRO_STATUS_SUCCESS); + cairo_restore (cr); + CHECK_STATUS (CAIRO_STATUS_INVALID_RESTORE); + + + reinit_cairo (&cr); + + /* cairo_restore() must fail with CAIRO_STATUS_INVALID_RESTORE if + * no matching cairo_save() call has been performed. */ + cairo_test_log (ctx, "Checking push(); save(); pop();\n"); + cairo_push_group (cr); + CHECK_STATUS (CAIRO_STATUS_SUCCESS); + cairo_save (cr); + CHECK_STATUS (CAIRO_STATUS_SUCCESS); + cairo_pop_group_to_source (cr); + CHECK_STATUS (CAIRO_STATUS_INVALID_POP_GROUP); + + + cairo_destroy (cr); + + return result; +} + +CAIRO_TEST (group_state, + "Tests the interaction between state (cairo_save, cairo_restore) " + "and group (cairo_push_group/cairo_pop_group) API", + "api", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/group-unaligned.c b/local/recipes/libs/cairo/source/test/group-unaligned.c new file mode 100644 index 0000000000..9124a032c6 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/group-unaligned.c @@ -0,0 +1,60 @@ +/* + * Copyright © Chris Wilson, 2008 + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Chris Wilson + * Stefan Röllin + */ + +#include "cairo-test.h" + +static void +circle (cairo_t* cr, double xc, double yc, double radius) +{ + cairo_arc (cr, xc, yc, radius, 0.0, 2*M_PI); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + circle (cr, 12.5, 12.5, 10.); + cairo_fill (cr); + + cairo_push_group (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + circle (cr, 12.5, 12.5, 10.); + cairo_fill (cr); + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (group_unaligned, + "test non-integer sized sub-surface", + "group", /* keywords */ + NULL, /* requirements */ + 35.5, 35.5, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/hairline.c b/local/recipes/libs/cairo/source/test/hairline.c new file mode 100644 index 0000000000..78fdca4a67 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/hairline.c @@ -0,0 +1,199 @@ +/* + * Copyright © 2021 Rick Yorgason + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "cairo-test.h" + +/** + * draw: + * @cr: a #cairo_t + * @width: Width of the test image + * @height: Height of the test image + * @scale_width: Percentage to scale the width + * @scale_height: Percentage to scale the height + * @fit_to_scale: Whether or not to adjust the image to fit in the scale parameters + * regardless of the scale parameters + * @correct_scale: Tests if the hairlines render correctly regardless of + * whether or not the scale is set "correctly", as per + * https://cairographics.org/cookbook/ellipses/ + */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height, double scale_width, double scale_height, cairo_bool_t fit_to_scale, cairo_bool_t correct_scale) +{ + cairo_matrix_t save_matrix; + double fit_width = fit_to_scale ? scale_width : 1.0; + double fit_height = fit_to_scale ? scale_height : 1.0; + double fit_max = MAX(fit_width, fit_height); + double dash[] = {3.0}; + + if (cairo_get_hairline (cr) == TRUE) { + return CAIRO_TEST_ERROR; + } + + /* Clear background */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_line_width (cr, 100.0); /* If everything is working right, this value should never get used */ + + /* Hairline sample */ + if (correct_scale) { + cairo_get_matrix (cr, &save_matrix); + } + cairo_scale (cr, scale_width, scale_height); + + cairo_set_hairline (cr, TRUE); + if (cairo_get_hairline (cr) == FALSE) { + return CAIRO_TEST_ERROR; + } + + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, width/fit_width/2, height/fit_height/2); + cairo_move_to (cr, width/fit_width/2, 0); + cairo_line_to (cr, width/fit_width/2, height/fit_height/2); + cairo_move_to (cr, 0, height/fit_height/2); + cairo_line_to (cr, width/fit_width/2, height/fit_height/2); + cairo_move_to (cr, width/fit_width/4, 0); + cairo_line_to (cr, width/fit_width/2, height/fit_height/2); + cairo_arc (cr, width/fit_width/2, height/fit_height/2, width/fit_max/4, M_PI*0.5, M_PI*1.0); + + if (correct_scale) { + cairo_set_matrix (cr, &save_matrix); + } + cairo_stroke (cr); + + /* Dashed sample */ + if (correct_scale) { + cairo_get_matrix (cr, &save_matrix); + cairo_scale (cr, scale_width, scale_height); + } + cairo_set_dash (cr, dash, 1, 0); + cairo_arc (cr, width/fit_width/2, height/fit_height/2, width/fit_max/4, M_PI*1.0, M_PI*1.5); + if (correct_scale) { + cairo_set_matrix (cr, &save_matrix); + } + cairo_stroke (cr); + + /* Control sample */ + if (correct_scale) { + cairo_get_matrix (cr, &save_matrix); + cairo_scale (cr, scale_width, scale_height); + } + + cairo_set_line_width (cr, 3.0); + cairo_set_hairline (cr, FALSE); + if (cairo_get_hairline (cr) == TRUE) { + return CAIRO_TEST_ERROR; + } + + cairo_set_dash (cr, 0, 0, 0); + + cairo_move_to (cr, width/fit_width, height/fit_height); + cairo_line_to (cr, width/fit_width/2, height/fit_height/2); + cairo_move_to (cr, width/fit_width/2, height/fit_height); + cairo_line_to (cr, width/fit_width/2, height/fit_height/2); + cairo_move_to (cr, width/fit_width, height/fit_height/2); + cairo_line_to (cr, width/fit_width/2, height/fit_height/2); + cairo_move_to (cr, width/fit_width*0.75, height/fit_height); + cairo_line_to (cr, width/fit_width/2, height/fit_height/2); + cairo_arc (cr, width/fit_width/2, height/fit_height/2, width/fit_max/4, M_PI*1.5, M_PI*2.0); + + if (correct_scale) { + cairo_set_matrix (cr, &save_matrix); + } + cairo_stroke (cr); + + /* Dashed sample */ + if (correct_scale) { + cairo_get_matrix (cr, &save_matrix); + cairo_scale (cr, scale_width, scale_height); + } + cairo_set_dash (cr, dash, 1, 0); + cairo_arc (cr, width/fit_width/2, height/fit_height/2, width/fit_max/4, 0, M_PI*0.5); + if (correct_scale) { + cairo_set_matrix (cr, &save_matrix); + } + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_typical (cairo_t *cr, int width, int height) +{ + return draw (cr, width, height, 1.0, 1.0, TRUE, TRUE); +} + +static cairo_test_status_t +draw_scaled (cairo_t *cr, int width, int height) +{ + return draw (cr, width, height, 0.5, 0.5, FALSE, TRUE); +} + +static cairo_test_status_t +draw_anisotropic (cairo_t *cr, int width, int height) +{ + return draw (cr, width, height, 2.0, 5.0, TRUE, TRUE); +} + +static cairo_test_status_t +draw_anisotropic_incorrect (cairo_t *cr, int width, int height) +{ + return draw (cr, width, height, 2.0, 5.0, TRUE, FALSE); +} + +CAIRO_TEST (hairline, + "Tests hairlines are drawn at a single pixel width", + "path, stroke, hairline", /* keywords */ + NULL, /* requirements */ + 49, 49, + NULL, draw_typical) + +CAIRO_TEST (hairline_big, + "Tests hairlines are drawn at a single pixel width", + "path, stroke, hairline", /* keywords */ + NULL, /* requirements */ + 99, 99, + NULL, draw_typical) + +CAIRO_TEST (hairline_scaled, + "Tests hairlines are drawn at a single pixel width", + "path, stroke, hairline", /* keywords */ + NULL, /* requirements */ + 99, 99, + NULL, draw_scaled) + +CAIRO_TEST (hairline_anisotropic, + "Tests hairlines with a really lopsided scale parameter", + "path, stroke, hairline", /* keywords */ + NULL, /* requirements */ + 99, 99, + NULL, draw_anisotropic) + +CAIRO_TEST (hairline_anisotropic_incorrect, + "Tests hairlines with a really lopsided scale parameter", + "path, stroke, hairline", /* keywords */ + NULL, /* requirements */ + 99, 99, + NULL, draw_anisotropic_incorrect) diff --git a/local/recipes/libs/cairo/source/test/half-coverage.c b/local/recipes/libs/cairo/source/test/half-coverage.c new file mode 100644 index 0000000000..38cafda757 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/half-coverage.c @@ -0,0 +1,155 @@ +/* + * Copyright 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* Test the fidelity of the rasterisation, because Cairo is my favourite + * driver test suite. + */ + +#define SIZE 256 +#define WIDTH 2 +#define HEIGHT 10 + +static cairo_test_status_t +rectangles (cairo_t *cr, int width, int height) +{ + int i; + + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + cairo_paint (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); + + for (i = 1; i <= SIZE; i++) { + int x, y; + + cairo_save (cr); + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + + cairo_scale (cr, 1./SIZE, 1./SIZE); + for (x = -i; x < SIZE*WIDTH; x += 2*i) { + for (y = -i; y < SIZE*HEIGHT; y += 2*i) { + /* Add a little tile composed of two non-overlapping squares + * +--+ + * | | + * |__|__ + * | | + * | | + * +--+ + */ + cairo_rectangle (cr, x, y, i, i); + cairo_rectangle (cr, x+i, y+i, i, i); + } + } + cairo_fill (cr); + cairo_restore (cr); + + cairo_translate (cr, WIDTH, 0); + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +triangles (cairo_t *cr, int width, int height) +{ + int i; + + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + cairo_paint (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); + + for (i = 1; i <= SIZE; i++) { + int x, y; + + cairo_save (cr); + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + + cairo_scale (cr, 1./SIZE, 1./SIZE); + for (x = -i; x < SIZE*WIDTH; x += 2*i) { + for (y = -i; y < SIZE*HEIGHT; y += 2*i) { + /* Add a tile composed of four non-overlapping + * triangles. The plus and minus signs inside the + * triangles denote the orientation of the triangle's + * edges: + for clockwise and - for anticlockwise. + * + * +-----+ + * \-|+/ + * \|/ + * /|\ + * /-|-\ + * +-----+ + */ + + /* top left triangle */ + cairo_move_to (cr, x, y); + cairo_line_to (cr, x+i, y+i); + cairo_line_to (cr, x+i, y); + cairo_close_path (cr); + + /* top right triangle */ + cairo_move_to (cr, x+i, y); + cairo_line_to (cr, x+2*i, y); + cairo_line_to (cr, x+i, y+i); + cairo_close_path (cr); + + /* bottom left triangle */ + cairo_move_to (cr, x+i, y+i); + cairo_line_to (cr, x, y+2*i); + cairo_line_to (cr, x+i, y+2*i); + cairo_close_path (cr); + + /* bottom right triangle */ + cairo_move_to (cr, x+i, y+i); + cairo_line_to (cr, x+i, y+2*i); + cairo_line_to (cr, x+2*i, y+2*i); + cairo_close_path (cr); + } + } + cairo_fill (cr); + cairo_restore (cr); + + cairo_translate (cr, WIDTH, 0); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (half_coverage_rectangles, + "Check the fidelity of the rasterisation.", + NULL, /* keywords */ + "target=raster slow", /* requirements */ + WIDTH * SIZE, HEIGHT, + NULL, rectangles) + +CAIRO_TEST (half_coverage_triangles, + "Check the fidelity of the rasterisation.", + NULL, /* keywords */ + "target=raster slow", /* requirements */ + WIDTH * SIZE, HEIGHT, + NULL, triangles) diff --git a/local/recipes/libs/cairo/source/test/halo.c b/local/recipes/libs/cairo/source/test/halo.c new file mode 100644 index 0000000000..30064e51a8 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/halo.c @@ -0,0 +1,158 @@ +/* + * Copyright 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* Try to replicate the misbehaviour of show_glyphs() versus glyph_path() + * in the PDF backend reported by Ian Britten. + */ + +static void +halo_around_path (cairo_t *cr, const char *str) +{ + cairo_text_path (cr, str); + + cairo_set_source_rgb (cr, 0, .5, 1); + cairo_stroke_preserve (cr); + cairo_set_source_rgb (cr, 1, .5, 0); + cairo_fill (cr); +} + +static void +halo_around_text (cairo_t *cr, const char *str) +{ + double x, y; + + cairo_get_current_point (cr, &x, &y); + cairo_text_path (cr, str); + + cairo_set_source_rgb (cr, 0, .5, 1); + cairo_stroke(cr); + + cairo_set_source_rgb (cr, 1, .5, 0); + cairo_move_to (cr, x, y); + cairo_show_text (cr, str); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const char *string = "0123456789"; + cairo_text_extents_t extents; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_text_extents (cr, string, &extents); + + cairo_set_font_size (cr, 12); + cairo_set_line_width (cr, 3); + cairo_move_to (cr, 9, 4 + extents.height); + halo_around_path (cr, string); + + cairo_move_to (cr, 109, 4 + extents.height); + halo_around_text (cr, string); + + cairo_set_font_size (cr, 6); + cairo_set_line_width (cr, 3); + cairo_move_to (cr, 19 + extents.width, 20 + extents.height); + halo_around_path (cr, "0"); + + cairo_move_to (cr, 119 + extents.width, 20 + extents.height); + halo_around_text (cr, "0"); + + cairo_set_font_size (cr, 64); + cairo_set_line_width (cr, 10); + cairo_move_to (cr, 8, 70); + halo_around_path (cr, "6"); + cairo_move_to (cr, 32, 90); + halo_around_path (cr, "7"); + + cairo_move_to (cr, 108, 70); + halo_around_text (cr, "6"); + cairo_move_to (cr, 132, 90); + halo_around_text (cr, "7"); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_transform (cairo_t *cr, int width, int height) +{ + const char *string = "0123456789"; + cairo_text_extents_t extents; + + cairo_translate (cr, 50, 50); + cairo_scale (cr, M_SQRT2, M_SQRT2); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_text_extents (cr, string, &extents); + + cairo_set_line_width (cr, 3); + cairo_move_to (cr, 9, 4 + extents.height); + halo_around_path (cr, string); + + cairo_move_to (cr, 109, 4 + extents.height); + halo_around_text (cr, string); + + cairo_set_font_size (cr, 6); + cairo_set_line_width (cr, 3); + cairo_move_to (cr, 19 + extents.width, 20 + extents.height); + halo_around_path (cr, "0"); + + cairo_move_to (cr, 119 + extents.width, 20 + extents.height); + halo_around_text (cr, "0"); + + cairo_set_font_size (cr, 64); + cairo_set_line_width (cr, 10); + cairo_move_to (cr, 8, 70); + halo_around_path (cr, "6"); + cairo_move_to (cr, 32, 90); + halo_around_path (cr, "7"); + + cairo_move_to (cr, 108, 70); + halo_around_text (cr, "6"); + cairo_move_to (cr, 132, 90); + halo_around_text (cr, "7"); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (halo, + "Check the show_glyphs() vs glyph_path()", + "text", /* keywords */ + NULL, /* requirements */ + 200, 100, + NULL, draw) + +CAIRO_TEST (halo_transform, + "Check the show_glyphs() vs glyph_path()", + "text", /* keywords */ + NULL, /* requirements */ + 400, 200, + NULL, draw_transform) diff --git a/local/recipes/libs/cairo/source/test/hatchings.c b/local/recipes/libs/cairo/source/test/hatchings.c new file mode 100644 index 0000000000..ca3f2c6afa --- /dev/null +++ b/local/recipes/libs/cairo/source/test/hatchings.c @@ -0,0 +1,153 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define STEP 5 +#define WIDTH 100 +#define HEIGHT 100 + +static void hatching (cairo_t *cr) +{ + int i; + + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + + for (i = 0; i < WIDTH; i += STEP) { + cairo_rectangle (cr, i-1, -2, 2, HEIGHT+4); + cairo_rectangle (cr, -2, i-1, WIDTH+4, 2); + } +} + +static void background (cairo_t *cr) +{ + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); +} + +static void clip_to_quadrant (cairo_t *cr) +{ + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); +} + +static void draw_hatching (cairo_t *cr, void (*func) (cairo_t *)) +{ + cairo_save (cr); { + clip_to_quadrant (cr); + hatching (cr); + func (cr); + } cairo_restore (cr); + + cairo_translate (cr, WIDTH, 0); + + cairo_save (cr); { + clip_to_quadrant (cr); + cairo_translate (cr, 0.25, 0.25); + hatching (cr); + func (cr); + } cairo_restore (cr); + + cairo_translate (cr, WIDTH, 0); + + cairo_save (cr); { + clip_to_quadrant (cr); + cairo_translate (cr, WIDTH/2, HEIGHT/2); + cairo_rotate (cr, M_PI/4); + cairo_translate (cr, -WIDTH/2, -HEIGHT/2); + hatching (cr); + func (cr); + } cairo_restore (cr); + + cairo_translate (cr, WIDTH, 0); +} + +static void do_clip (cairo_t *cr) +{ + cairo_clip (cr); + cairo_paint (cr); +} + +static void do_clip_alpha (cairo_t *cr) +{ + cairo_clip (cr); + cairo_paint_with_alpha (cr, .5); +} + +static void hatchings (cairo_t *cr, void (*func) (cairo_t *)) +{ + cairo_save (cr); { + cairo_set_source_rgb(cr, 1, 0, 0); + cairo_set_antialias (cr, CAIRO_ANTIALIAS_DEFAULT); + draw_hatching (cr, func); + cairo_set_source_rgb(cr, 0, 0, 1); + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + draw_hatching (cr, func); + } cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + background (cr); + + + /* aligned, misaligned, diagonal; mono repeat + * x fill + * x clip; paint + * x clip; paint-alpha + * repeated, for over/source + */ + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + + hatchings (cr, cairo_fill); + cairo_translate (cr, 0, HEIGHT); + hatchings (cr, do_clip); + cairo_translate (cr, 0, HEIGHT); + hatchings (cr, do_clip_alpha); + cairo_translate (cr, 0, HEIGHT); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + + hatchings (cr, cairo_fill); + cairo_translate (cr, 0, HEIGHT); + hatchings (cr, do_clip); + cairo_translate (cr, 0, HEIGHT); + hatchings (cr, do_clip_alpha); + cairo_translate (cr, 0, HEIGHT); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (hatchings, + "Test drawing through various aligned/unaliged clips", + "clip, alpha", /* keywords */ + "target=raster", /* requirements */ + 6*WIDTH, 6*HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/horizontal-clip.c b/local/recipes/libs/cairo/source/test/horizontal-clip.c new file mode 100644 index 0000000000..93127a7228 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/horizontal-clip.c @@ -0,0 +1,77 @@ +/* + * Copyright 2011 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +/* Exercises a bug spotted by Andrea Canciani where the polygon clipping + * code was hopeless broken with horizontal edges. + */ + +#include "cairo-test.h" + +#define WIDTH 16 +#define HEIGHT 26 + +#define BUGY 1 +#define BUGX (4 * BUGY * WIDTH * 256) + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_move_to (cr, - BUGX, 6 - BUGY); + cairo_line_to (cr, + BUGX, 6 + BUGY); + cairo_line_to (cr, WIDTH + BUGX, 2 - BUGY); + cairo_line_to (cr, WIDTH - BUGX, 2 + BUGY); + cairo_fill (cr); + + cairo_move_to (cr, WIDTH + BUGX, 8 - BUGY); + cairo_line_to (cr, WIDTH - BUGX, 8 + BUGY); + cairo_line_to (cr, - BUGX, 12 - BUGY); + cairo_line_to (cr, + BUGX, 12 + BUGY); + cairo_fill (cr); + + cairo_move_to (cr, - BUGX, 14 - BUGY); + cairo_line_to (cr, + BUGX, 14 + BUGY); + cairo_line_to (cr, WIDTH + BUGX, 18 - BUGY); + cairo_line_to (cr, WIDTH - BUGX, 18 + BUGY); + cairo_fill (cr); + + cairo_move_to (cr, WIDTH + BUGX, 24 - BUGY); + cairo_line_to (cr, WIDTH - BUGX, 24 + BUGY); + cairo_line_to (cr, - BUGX, 20 - BUGY); + cairo_line_to (cr, + BUGX, 20 + BUGY); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (horizontal_clip, + "Tests intersection of a nearly horizontal lines with a clipped polygon", + "clip, fill", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/huge-linear.c b/local/recipes/libs/cairo/source/test/huge-linear.c new file mode 100644 index 0000000000..f84b4ea0cc --- /dev/null +++ b/local/recipes/libs/cairo/source/test/huge-linear.c @@ -0,0 +1,67 @@ +/* + * Copyright © 2006 Benjamin Otte + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + */ + +#include "cairo-test.h" + +/* set this to 0.1 to make this test work */ +#define FACTOR 1.e6 + +/* XXX poppler-cairo doesn't handle gradients very well... */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + cairo_matrix_t mat = { + 0, -4.5254285714285709 * FACTOR, + -2.6398333333333333 * FACTOR, 0, + 0, 0 + }; + + pattern = cairo_pattern_create_linear (-16384 * FACTOR, 0, + 16384 * FACTOR, 0); + cairo_pattern_add_color_stop_rgba (pattern, + 0, 0.376471, 0.533333, 0.27451, 1); + cairo_pattern_add_color_stop_rgba (pattern, 1, 1, 1, 1, 1); + cairo_pattern_set_matrix (pattern, &mat); + + cairo_scale (cr, 0.05, 0.05); + cairo_translate (cr, 6000, 3500); + + cairo_set_source (cr, pattern); + cairo_rectangle (cr, -6000, -3500, 12000, 7000); + cairo_pattern_destroy (pattern); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (huge_linear, + "Test huge linear patterns", + "gradient, linear", /* keywords */ + NULL, /* requirements */ + 600, 350, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/huge-radial.c b/local/recipes/libs/cairo/source/test/huge-radial.c new file mode 100644 index 0000000000..21524b7a45 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/huge-radial.c @@ -0,0 +1,69 @@ +/* + * Copyright © 2006 Benjamin Otte + * Copyright © 2009 Chris Wilson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + * Chris Wilson + */ + +#include "cairo-test.h" + +/* set this to 0.1 to make this test work */ +#define FACTOR 1.e6 + +/* XXX poppler-cairo doesn't handle gradients very well... */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + cairo_matrix_t mat = { + 0, -4.5254285714285709 * FACTOR, + -2.6398333333333333 * FACTOR, 0, + 0, 0 + }; + + pattern = cairo_pattern_create_radial (0, 0, 0, + 0, 0, 16384 * FACTOR); + cairo_pattern_add_color_stop_rgba (pattern, + 0, 0.376471, 0.533333, 0.27451, 1); + cairo_pattern_add_color_stop_rgba (pattern, 1, 1, 1, 1, 1); + cairo_pattern_set_matrix (pattern, &mat); + + cairo_scale (cr, 0.05, 0.05); + cairo_translate (cr, 6000, 3500); + + cairo_set_source (cr, pattern); + cairo_rectangle (cr, -6000, -3500, 12000, 7000); + cairo_pattern_destroy (pattern); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (huge_radial, + "Test huge radial patterns", + "gradient, radial", /* keywords */ + NULL, /* requirements */ + 600, 350, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/image-bug-710072.c b/local/recipes/libs/cairo/source/test/image-bug-710072.c new file mode 100644 index 0000000000..9cf0da799a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/image-bug-710072.c @@ -0,0 +1,80 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +/* + * This test case aims to reproduce the misbehaviour exhibited in + * https://bugs.launchpad.net/ubuntu/+source/cairo/+bug/710072 + * i.e. out of bounds rendering with the rectangular span compositor. + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw_aligned (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_rectangle (cr, -10, -10, 20, 20); + cairo_rectangle (cr, 5, 5, 20, 20); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_fill_preserve (cr); + cairo_set_source_rgba (cr, 1, 0, 0, .5); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_unaligned (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_rectangle (cr, -10.5, -10.5, 20, 20); + cairo_rectangle (cr, 5.5, 5.5, 20, 20); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_fill_preserve (cr); + cairo_set_source_rgba (cr, 1, 0, 0, .5); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (image_bug_710072_aligned, + "Tests a bug where we may compute spans greater than bounded extents", + "extents, fill, stroke", /* keywords */ + NULL, /* requirements */ + 15, 15, + NULL, draw_aligned) + +CAIRO_TEST (image_bug_710072_unaligned, + "Tests a bug where we may compute spans greater than bounded extents", + "extents, fill, stroke", /* keywords */ + NULL, /* requirements */ + 15, 15, + NULL, draw_unaligned) diff --git a/local/recipes/libs/cairo/source/test/image-surface-source.c b/local/recipes/libs/cairo/source/test/image-surface-source.c new file mode 100644 index 0000000000..c7c1fdc332 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/image-surface-source.c @@ -0,0 +1,41 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#include "surface-source.c" + +static cairo_surface_t * +create_source_surface (int size) +{ + return cairo_image_surface_create (CAIRO_FORMAT_ARGB32, size, size); +} + +CAIRO_TEST (image_surface_source, + "Test using a image surface as the source", + "source", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + preamble, draw) diff --git a/local/recipes/libs/cairo/source/test/image1.jb2 b/local/recipes/libs/cairo/source/test/image1.jb2 new file mode 100644 index 0000000000..882ca95eb1 Binary files /dev/null and b/local/recipes/libs/cairo/source/test/image1.jb2 differ diff --git a/local/recipes/libs/cairo/source/test/image2.jb2 b/local/recipes/libs/cairo/source/test/image2.jb2 new file mode 100644 index 0000000000..48e41463f2 Binary files /dev/null and b/local/recipes/libs/cairo/source/test/image2.jb2 differ diff --git a/local/recipes/libs/cairo/source/test/imagediff.c b/local/recipes/libs/cairo/source/test/imagediff.c new file mode 100644 index 0000000000..c091e76278 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/imagediff.c @@ -0,0 +1,301 @@ +/* imagediff - Compare two images + * + * Copyright © 2004 Richard D. Worth + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of Richard Worth + * not be used in advertising or publicity pertaining to distribution + * of the software without specific, written prior permission. + * Richard Worth makes no representations about the suitability of this + * software for any purpose. It is provided "as is" without express + * or implied warranty. + * + * RICHARD WORTH DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN + * NO EVENT SHALL RICHARD WORTH BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS + * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, + * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Richard D. Worth */ + +#include "config.h" + +#include +#include +#ifdef HAVE_UNISTD_H +#include +#endif +#include + +#include "buffer-diff.h" + +static void +_xunlink (const char *pathname) +{ + if (unlink (pathname) < 0 && errno != ENOENT) { + fprintf (stderr, " Error: Cannot remove %s: %s\n", + pathname, strerror (errno)); + exit (1); + } +} + +void +cairo_test_logv (const cairo_test_context_t *ctx, + const char *fmt, va_list va) +{ + vfprintf (stderr, fmt, va); +} + +void +cairo_test_log (const cairo_test_context_t *ctx, const char *fmt, ...) +{ + va_list va; + + va_start (va, fmt); + vfprintf (stderr, fmt, va); + va_end (va); +} + +/* Flatten an ARGB surface by blending it over white. The resulting + * surface, (still in ARGB32 format, but with only alpha==1.0 + * everywhere) is returned in the same surface pointer. + * + * The original surface will be destroyed. + * + * The (x,y) value specify an origin of interest for the original + * image. The flattened image will be generated only from the box + * extending from (x,y) to (width,height). + */ +static void +flatten_surface (cairo_surface_t **surface, int x, int y) +{ + cairo_surface_t *flat; + cairo_t *cr; + + flat = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + cairo_image_surface_get_width (*surface) - x, + cairo_image_surface_get_height (*surface) - y); + cairo_surface_set_device_offset (flat, -x, -y); + + cr = cairo_create (flat); + cairo_surface_destroy (flat); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_surface (cr, *surface, 0, 0); + cairo_surface_destroy (*surface); + cairo_paint (cr); + + *surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); +} + +/* Given an image surface, create a new surface that has the same + * contents as the sub-surface with its origin at x,y. + * + * The original surface will be destroyed. + */ +static void +extract_sub_surface (cairo_surface_t **surface, int x, int y) +{ + cairo_surface_t *sub; + cairo_t *cr; + + sub = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + cairo_image_surface_get_width (*surface) - x, + cairo_image_surface_get_height (*surface) - y); + + /* We don't use a device offset like flatten_surface. That's not + * for any important reason, (the results should be + * identical). This style just seemed more natural to me this + * time, so I'm leaving both here so I can look at both to see + * which I like better. */ + cr = cairo_create (sub); + cairo_surface_destroy (sub); + + cairo_set_source_surface (cr, *surface, -x, -y); + cairo_surface_destroy (*surface); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + + *surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); +} + +static cairo_status_t +stdio_write_func (void *closure, const unsigned char *data, unsigned int length) +{ + FILE *file = closure; + + if (fwrite (data, 1, length, file) != length) + return CAIRO_STATUS_WRITE_ERROR; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +write_png (cairo_surface_t *surface, const char *filename) +{ + cairo_status_t status; + FILE *png_file; + + if (filename != NULL) { + png_file = fopen (filename, "wb"); + if (png_file == NULL) { + switch (errno) { + case ENOMEM: + return CAIRO_STATUS_NO_MEMORY; + default: + return CAIRO_STATUS_WRITE_ERROR; + } + } + } else + png_file = stdout; + + status = cairo_surface_write_to_png_stream (surface, + stdio_write_func, + png_file); + + if (png_file != stdout) + fclose (png_file); + + return status; +} + +static cairo_status_t +png_diff (const char *filename_a, + const char *filename_b, + const char *filename_diff, + int ax, + int ay, + int bx, + int by, + buffer_diff_result_t *result) +{ + cairo_surface_t *surface_a; + cairo_surface_t *surface_b; + cairo_surface_t *surface_diff; + cairo_status_t status; + + surface_a = cairo_image_surface_create_from_png (filename_a); + status = cairo_surface_status (surface_a); + if (status) { + fprintf (stderr, "Error: Failed to create surface from %s: %s\n", + filename_a, cairo_status_to_string (status)); + return status; + } + + surface_b = cairo_image_surface_create_from_png (filename_b); + status = cairo_surface_status (surface_b); + if (status) { + fprintf (stderr, "Error: Failed to create surface from %s: %s\n", + filename_b, cairo_status_to_string (status)); + cairo_surface_destroy (surface_a); + return status; + } + + if (ax || ay) { + extract_sub_surface (&surface_a, ax, ay); + ax = ay = 0; + } + + if (bx || by) { + extract_sub_surface (&surface_b, bx, by); + bx = by = 0; + } + + status = cairo_surface_status (surface_a); + if (status) { + fprintf (stderr, "Error: Failed to extract surface from %s: %s\n", + filename_a, cairo_status_to_string (status)); + cairo_surface_destroy (surface_a); + cairo_surface_destroy (surface_b); + return status; + } + status = cairo_surface_status (surface_b); + if (status) { + fprintf (stderr, "Error: Failed to extract surface from %s: %s\n", + filename_b, cairo_status_to_string (status)); + cairo_surface_destroy (surface_a); + cairo_surface_destroy (surface_b); + return status; + } + + surface_diff = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + cairo_image_surface_get_width (surface_a), + cairo_image_surface_get_height (surface_a)); + status = cairo_surface_status (surface_diff); + if (status) { + fprintf (stderr, + "Error: Failed to allocate surface to hold differences\n"); + cairo_surface_destroy (surface_a); + cairo_surface_destroy (surface_b); + return CAIRO_STATUS_NO_MEMORY; + } + + status = image_diff (NULL, + surface_a, surface_b, surface_diff, + result); + + if (filename_diff) + _xunlink (filename_diff); + + if (status == CAIRO_STATUS_SUCCESS && + result->pixels_changed) + { + status = write_png (surface_diff, filename_diff); + } + + cairo_surface_destroy (surface_a); + cairo_surface_destroy (surface_b); + cairo_surface_destroy (surface_diff); + + return status; +} + +int +main (int argc, char *argv[]) +{ + buffer_diff_result_t result; + cairo_status_t status; + + unsigned int ax, ay, bx, by; + + if (argc != 3 && argc != 7) { + fprintf (stderr, "Usage: %s image1.png image2.png [ax ay bx by]\n", argv[0]); + fprintf (stderr, "Computes an output image designed to present a \"visual diff\" such that even\n"); + fprintf (stderr, "small errors in single pixels are readily apparent in the output.\n"); + fprintf (stderr, "The output image is written on stdout.\n"); + exit (1); + } + + if (argc == 7) { + ax = strtoul (argv[3], NULL, 0); + ay = strtoul (argv[4], NULL, 0); + bx = strtoul (argv[5], NULL, 0); + by = strtoul (argv[6], NULL, 0); + } else { + ax = ay = bx = by = 0; + } + + status = png_diff (argv[1], argv[2], NULL, ax, ay, bx, by, &result); + + if (status) { + fprintf (stderr, "Error comparing images: %s\n", + cairo_status_to_string (status)); + return 1; + } + + if (result.pixels_changed) + fprintf (stderr, "Total pixels changed: %d with a maximum channel difference of %d.\n", + result.pixels_changed, + result.max_diff); + + return (result.pixels_changed != 0); +} diff --git a/local/recipes/libs/cairo/source/test/implicit-close.c b/local/recipes/libs/cairo/source/test/implicit-close.c new file mode 100644 index 0000000000..2529bb00f2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/implicit-close.c @@ -0,0 +1,54 @@ +/* + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 40 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_move_to (cr, SIZE, 0); + cairo_rel_line_to (cr, 0, SIZE); + cairo_rel_line_to (cr, -SIZE, 0); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_fill_preserve (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (implicit_close, + "Test implicitly closing paths", + "fill", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/in-fill-empty-trapezoid.c b/local/recipes/libs/cairo/source/test/in-fill-empty-trapezoid.c new file mode 100644 index 0000000000..0797399c58 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/in-fill-empty-trapezoid.c @@ -0,0 +1,109 @@ +/* + * Copyright © 2006 M Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: M Joonas Pihlaja + */ + +/* Bug history + * + * 2006-12-05 M Joonas Pihlaja + * + * The cairo_in_fill () function can sometimes produce false + * positives when the tessellator produces empty trapezoids + * and the query point lands exactly on a trapezoid edge. + */ + +#include "cairo-test.h" + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + int x,y; + int width = 10; + int height = 10; + cairo_surface_t *surf; + cairo_t *cr; + int false_positive_count = 0; + cairo_status_t status; + cairo_test_status_t ret; + + surf = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height); + cr = cairo_create (surf); + cairo_surface_destroy (surf); + + /* Empty horizontal trapezoid. */ + cairo_move_to (cr, 0, height/3); + cairo_line_to (cr, width, height/3); + cairo_close_path (cr); + + /* Empty non-horizontal trapezoid #1. */ + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, width, height/2); + cairo_close_path (cr); + + /* Empty non-horizontal trapezoid #2 intersecting #1. */ + cairo_move_to (cr, 0, height/2); + cairo_line_to (cr, width, 0); + cairo_close_path (cr); + + status = cairo_status (cr); + + /* Point sample the tessellated path. */ + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + if (cairo_in_fill (cr, x, y)) { + false_positive_count++; + } + } + } + cairo_destroy (cr); + + /* Check that everything went well. */ + ret = CAIRO_TEST_SUCCESS; + if (CAIRO_STATUS_SUCCESS != status) { + cairo_test_log (ctx, "Failed to create a test surface and path: %s\n", + cairo_status_to_string (status)); + ret = CAIRO_TEST_XFAILURE; + } + + if (0 != false_positive_count) { + cairo_test_log (ctx, "Point sampling found %d false positives " + "from cairo_in_fill()\n", + false_positive_count); + ret = CAIRO_TEST_XFAILURE; + } + + return ret; +} + +/* + * XFAIL: The cairo_in_fill () function can sometimes produce false positives + * when the tessellator produces empty trapezoids and the query point lands + * exactly on a trapezoid edge. + */ +CAIRO_TEST (in_fill_empty_trapezoid, + "Test that the tessellator isn't producing obviously empty trapezoids", + "in, trap", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/in-fill-trapezoid.c b/local/recipes/libs/cairo/source/test/in-fill-trapezoid.c new file mode 100644 index 0000000000..84b323a050 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/in-fill-trapezoid.c @@ -0,0 +1,279 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_test_status_t ret = CAIRO_TEST_SUCCESS; + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 0, 0); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + + /* simple rectangle */ + cairo_new_path (cr); + cairo_rectangle (cr, -10, -10, 20, 20); + if (! cairo_in_fill (cr, 0, 0)) { + cairo_test_log (ctx, "Error: Failed to find point inside rectangle\n"); + ret = CAIRO_TEST_FAILURE; + } + + /* rectangular boundary tests */ + if (! cairo_in_fill (cr, -10, -10)) { + cairo_test_log (ctx, "Error: Failed to find top-left vertex inside rectangle\n"); + ret = CAIRO_TEST_FAILURE; + } + if (! cairo_in_fill (cr, -10, 10)) { + cairo_test_log (ctx, "Error: Failed to find bottom-left vertex inside rectangle\n"); + ret = CAIRO_TEST_FAILURE; + } + if (! cairo_in_fill (cr, 10, -10)) { + cairo_test_log (ctx, "Error: Failed to find top-right vertex inside rectangle\n"); + ret = CAIRO_TEST_FAILURE; + } + if (! cairo_in_fill (cr, 10, 10)) { + cairo_test_log (ctx, "Error: Failed to find bottom-right vertex inside rectangle\n"); + ret = CAIRO_TEST_FAILURE; + } + if (! cairo_in_fill (cr, -10, 0)) { + cairo_test_log (ctx, "Error: Failed to find left edge inside rectangle\n"); + ret = CAIRO_TEST_FAILURE; + } + if (! cairo_in_fill (cr, 0, -10)) { + cairo_test_log (ctx, "Error: Failed to find top edge inside rectangle\n"); + ret = CAIRO_TEST_FAILURE; + } + if (! cairo_in_fill (cr, 10, 0)) { + cairo_test_log (ctx, "Error: Failed to find right edge inside rectangle\n"); + ret = CAIRO_TEST_FAILURE; + } + if (! cairo_in_fill (cr, 0, 10)) { + cairo_test_log (ctx, "Error: Failed to find bottom edge inside rectangle\n"); + ret = CAIRO_TEST_FAILURE; + } + + /* simple circle */ + cairo_new_path (cr); + cairo_arc (cr, 0, 0, 10, 0, 2 * M_PI); + if (! cairo_in_fill (cr, 0, 0)) { + cairo_test_log (ctx, "Error: Failed to find point inside circle [even-odd]\n"); + ret = CAIRO_TEST_FAILURE; + } + + /* holey rectangle */ + cairo_new_path (cr); + cairo_rectangle (cr, -10, -10, 20, 20); + cairo_rectangle (cr, -5, -5, 10, 10); + if (cairo_in_fill (cr, 0, 0)) { + cairo_test_log (ctx, "Error: Found an unexpected point inside rectangular eo-hole\n"); + ret = CAIRO_TEST_FAILURE; + } + + /* holey circle */ + cairo_new_path (cr); + cairo_arc (cr, 0, 0, 10, 0, 2 * M_PI); + cairo_arc (cr, 0, 0, 5, 0, 2 * M_PI); + if (cairo_in_fill (cr, 0, 0)) { + cairo_test_log (ctx, "Error: Found an unexpected point inside circular eo-hole\n"); + ret = CAIRO_TEST_FAILURE; + } + + + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING); + + /* simple rectangle */ + cairo_new_path (cr); + cairo_rectangle (cr, -10, -10, 20, 20); + if (! cairo_in_fill (cr, 0, 0)) { + cairo_test_log (ctx, "Error: Failed to find point inside rectangle\n"); + ret = CAIRO_TEST_FAILURE; + } + + /* simple circle */ + cairo_new_path (cr); + cairo_arc (cr, 0, 0, 10, 0, 2 * M_PI); + if (! cairo_in_fill (cr, 0, 0)) { + cairo_test_log (ctx, "Error: Failed to find point inside circle [nonzero]\n"); + ret = CAIRO_TEST_FAILURE; + } + + /* overlapping circle/rectangle */ + cairo_new_path (cr); + cairo_rectangle (cr, -10, -10, 20, 20); + cairo_new_sub_path (cr); + cairo_arc (cr, 0, 0, 10, 0, 2 * M_PI); + if (! cairo_in_fill (cr, 0, 0)) { + cairo_test_log (ctx, "Error: Failed to find point inside circle+rectangle\n"); + ret = CAIRO_TEST_FAILURE; + } + + /* holey rectangle */ + cairo_new_path (cr); + cairo_rectangle (cr, -10, -10, 20, 20); + cairo_rectangle (cr, 5, -5, -10, 10); + if (cairo_in_fill (cr, 0, 0)) { + cairo_test_log (ctx, "Error: Found an unexpected point inside rectangular non-zero-hole\n"); + ret = CAIRO_TEST_FAILURE; + } + + /* holey circle */ + cairo_new_path (cr); + cairo_arc (cr, 0, 0, 10, 0, 2 * M_PI); + cairo_arc_negative (cr, 0, 0, 5, 0, -2 * M_PI); + if (cairo_in_fill (cr, 0, 0)) { + cairo_test_log (ctx, "Error: Found an unexpected point inside circular non-zero-hole\n"); + ret = CAIRO_TEST_FAILURE; + } + + /* not a holey circle */ + cairo_new_path (cr); + cairo_arc (cr, 0, 0, 10, 0, 2 * M_PI); + cairo_arc (cr, 0, 0, 5, 0, 2 * M_PI); + if (! cairo_in_fill (cr, 0, 0)) { + cairo_test_log (ctx, "Error: Failed to find point inside two circles\n"); + ret = CAIRO_TEST_FAILURE; + } + + /* check off-centre */ + cairo_new_path (cr); + cairo_arc (cr, 7.5, 0, 10, 0, 2 * M_PI); + cairo_arc_negative (cr, 7.5, 0, 5, 0, -2 * M_PI); + if (cairo_in_fill (cr, 7.5, 0)) { + cairo_test_log (ctx, "Error: Found an unexpected point inside off-centre-x circular non-zero-hole\n"); + ret = CAIRO_TEST_FAILURE; + } + cairo_new_path (cr); + cairo_arc (cr, 0, 7.5, 10, 0, 2 * M_PI); + cairo_arc_negative (cr, 0, 7.5, 5, 0, -2 * M_PI); + if (cairo_in_fill (cr, 0, 7.5)) { + cairo_test_log (ctx, "Error: Found an unexpected point inside off-centre-y circular non-zero-hole\n"); + ret = CAIRO_TEST_FAILURE; + } + cairo_new_path (cr); + cairo_arc (cr, 15, 0, 10, 0, 2 * M_PI); + if (! cairo_in_fill (cr, 15, 0)) { + cairo_test_log (ctx, "Error: Failed to find point inside off-centre-x circle\n"); + ret = CAIRO_TEST_FAILURE; + } + cairo_new_path (cr); + cairo_arc (cr, 0, 15, 10, 0, 2 * M_PI); + if (! cairo_in_fill (cr, 0, 15)) { + cairo_test_log (ctx, "Error: Failed to find point inside off-centre-y circle\n"); + ret = CAIRO_TEST_FAILURE; + } + + /* simple rectangle */ + cairo_new_path (cr); + cairo_rectangle (cr, 10, 0, 5, 5); + if (cairo_in_fill (cr, 0, 0)) { + cairo_test_log (ctx, "Error: Found an unexpected point outside rectangle\n"); + ret = CAIRO_TEST_FAILURE; + } + if (cairo_in_fill (cr, 20, 20)) { + cairo_test_log (ctx, "Error: Found an unexpected point outside rectangle\n"); + ret = CAIRO_TEST_FAILURE; + } + if (! cairo_in_fill (cr, 12.5, 2.5)) { + cairo_test_log (ctx, "Error: Failed to find point inside rectangle\n"); + ret = CAIRO_TEST_FAILURE; + } + + /* off-centre triangle */ + cairo_new_path (cr); + cairo_move_to (cr, 10, 0); + cairo_line_to (cr, 15, 5); + cairo_line_to (cr, 5, 5); + cairo_close_path (cr); + if (cairo_in_fill (cr, 0, 0) || + cairo_in_fill (cr, 5, 0) || + cairo_in_fill (cr, 15, 0) || + cairo_in_fill (cr, 20, 0) || + cairo_in_fill (cr, 0, 10) || + cairo_in_fill (cr, 10, 10) || + cairo_in_fill (cr, 20, 10) || + cairo_in_fill (cr, 7, 2.5) || + cairo_in_fill (cr, 13, 2.5)) + { + cairo_test_log (ctx, + "Error: Found an unexpected point outside triangle\n" + "\t(0, 0) -> %s\n" + "\t(5, 0) -> %s\n" + "\t(15, 0) -> %s\n" + "\t(20, 0) -> %s\n" + "\t(0, 10) -> %s\n" + "\t(10, 10) -> %s\n" + "\t(20, 10) -> %s\n" + "\t(7, 2.5) -> %s\n" + "\t(13, 2.5) -> %s\n", + cairo_in_fill (cr, 0, 0) ? "inside" : "outside", + cairo_in_fill (cr, 5, 0) ? "inside" : "outside", + cairo_in_fill (cr, 15, 0) ? "inside" : "outside", + cairo_in_fill (cr, 20, 0) ? "inside" : "outside", + cairo_in_fill (cr, 0, 10) ? "inside" : "outside", + cairo_in_fill (cr, 10, 10) ? "inside" : "outside", + cairo_in_fill (cr, 20, 10) ? "inside" : "outside", + cairo_in_fill (cr, 7, 2.5) ? "inside" : "outside", + cairo_in_fill (cr, 13, 2.5) ? "inside" : "outside"); + ret = CAIRO_TEST_FAILURE; + } + if (! cairo_in_fill (cr, 7.5, 2.5) || + ! cairo_in_fill (cr, 12.5, 2.5) || + ! cairo_in_fill (cr, 10, 5)) + { + cairo_test_log (ctx, + "Error: Failed to find point on triangle edge\n" + "\t(7.5, 2.5) -> %s\n" + "\t(12.5, 2.5) -> %s\n" + "\t(10, 5) -> %s\n", + cairo_in_fill (cr, 7.5, 2.5) ? "inside" : "outside", + cairo_in_fill (cr, 12.5, 2.5) ? "inside" : "outside", + cairo_in_fill (cr, 10, 5) ? "inside" : "outside"); + ret = CAIRO_TEST_FAILURE; + } + if (! cairo_in_fill (cr, 8, 2.5) || + ! cairo_in_fill (cr, 12, 2.5)) + { + cairo_test_log (ctx, "Error: Failed to find point inside triangle\n"); + ret = CAIRO_TEST_FAILURE; + } + + cairo_destroy (cr); + + return ret; +} + +CAIRO_TEST (in_fill_trapezoid, + "Test cairo_in_fill", + "in, trap", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/index.html b/local/recipes/libs/cairo/source/test/index.html new file mode 100644 index 0000000000..54c65cdc12 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/index.html @@ -0,0 +1,42 @@ + +Cairo Test Results + + + + +
    + + diff --git a/local/recipes/libs/cairo/source/test/infinite-join.c b/local/recipes/libs/cairo/source/test/infinite-join.c new file mode 100644 index 0000000000..a573f56a5b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/infinite-join.c @@ -0,0 +1,72 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of the + * copyright holders not be used in advertising or publicity + * pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied + * warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +/* Test case for bug #8379: + * + * infinite loop when stroking + * https://bugs.freedesktop.org/show_bug.cgi?id=8379 + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* Paint white, then draw in black. */ + cairo_set_source_rgb (cr, 1, 1, 1); /* white */ + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + + /* scaling 2 times causes a slight rounding error in the ctm. + * Without that, the bug doesn't happen. */ + cairo_scale (cr, 20 / 100., 20 / 100.); + cairo_scale (cr, 1. / 20, 1. / 20); + + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_set_line_width (cr, 20); + + cairo_translate (cr, -18300, -13200); + + cairo_new_path (cr); + cairo_move_to (cr, 18928, 13843); + cairo_line_to (cr, 18500, 13843); + cairo_line_to (cr, 18500, 13400); + cairo_line_to (cr, 18928, 13400); + cairo_line_to (cr, 18928, 13843); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (infinite_join, + "Test case for infinite loop when stroking with round joins", + "stroke", /* keywords */ + NULL, + 8, 8, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/invalid-matrix.c b/local/recipes/libs/cairo/source/test/invalid-matrix.c new file mode 100644 index 0000000000..df0dff0f19 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/invalid-matrix.c @@ -0,0 +1,374 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl Worth + */ + +#define _ISOC99_SOURCE /* for INFINITY */ + +#include "config.h" +#include "cairo-test.h" + +#if !defined(INFINITY) +#define INFINITY HUGE_VAL +#endif + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_status_t status; + cairo_surface_t *target; + cairo_font_face_t *font_face; + cairo_font_options_t *font_options; + cairo_scaled_font_t *scaled_font; + cairo_pattern_t *pattern; + cairo_t *cr2; + cairo_matrix_t identity, bogus, inf, invalid = { + 4.0, 4.0, + 4.0, 4.0, + 4.0, 4.0 + }; + +#define CHECK_STATUS(status, function_name) \ +if ((status) == CAIRO_STATUS_SUCCESS) { \ + cairo_test_log (ctx, "Error: %s with invalid matrix passed\n", \ + (function_name)); \ + return CAIRO_TEST_FAILURE; \ +} else if ((status) != CAIRO_STATUS_INVALID_MATRIX) { \ + cairo_test_log (ctx, "Error: %s with invalid matrix returned unexpected status " \ + "(%d): %s\n", \ + (function_name), \ + status, \ + cairo_status_to_string (status)); \ + return CAIRO_TEST_FAILURE; \ +} + + /* clear floating point exceptions (added by cairo_test_init()) */ +#if HAVE_FEDISABLEEXCEPT + fedisableexcept (FE_INVALID); +#endif + + /* create a bogus matrix and check results of attempted inversion */ + bogus.x0 = bogus.xy = bogus.xx = cairo_test_NaN (); + bogus.y0 = bogus.yx = bogus.yy = bogus.xx; + status = cairo_matrix_invert (&bogus); + CHECK_STATUS (status, "cairo_matrix_invert(NaN)"); + + inf.x0 = inf.xy = inf.xx = INFINITY; + inf.y0 = inf.yx = inf.yy = inf.xx; + status = cairo_matrix_invert (&inf); + CHECK_STATUS (status, "cairo_matrix_invert(infinity)"); + + /* test cairo_matrix_invert with invalid matrix */ + status = cairo_matrix_invert (&invalid); + CHECK_STATUS (status, "cairo_matrix_invert(invalid)"); + + + cairo_matrix_init_identity (&identity); + + target = cairo_get_group_target (cr); + + /* test cairo_transform with invalid matrix */ + cr2 = cairo_create (target); + cairo_transform (cr2, &invalid); + + status = cairo_status (cr2); + cairo_destroy (cr2); + CHECK_STATUS (status, "cairo_transform(invalid)"); + + /* test cairo_transform with bogus matrix */ + cr2 = cairo_create (target); + cairo_transform (cr2, &bogus); + + status = cairo_status (cr2); + cairo_destroy (cr2); + CHECK_STATUS (status, "cairo_transform(NaN)"); + + /* test cairo_transform with ∞ matrix */ + cr2 = cairo_create (target); + cairo_transform (cr2, &inf); + + status = cairo_status (cr2); + cairo_destroy (cr2); + CHECK_STATUS (status, "cairo_transform(infinity)"); + + + /* test cairo_set_matrix with invalid matrix */ + cr2 = cairo_create (target); + cairo_set_matrix (cr2, &invalid); + + status = cairo_status (cr2); + cairo_destroy (cr2); + CHECK_STATUS (status, "cairo_set_matrix(invalid)"); + + /* test cairo_set_matrix with bogus matrix */ + cr2 = cairo_create (target); + cairo_set_matrix (cr2, &bogus); + + status = cairo_status (cr2); + cairo_destroy (cr2); + CHECK_STATUS (status, "cairo_set_matrix(NaN)"); + + /* test cairo_set_matrix with ∞ matrix */ + cr2 = cairo_create (target); + cairo_set_matrix (cr2, &inf); + + status = cairo_status (cr2); + cairo_destroy (cr2); + CHECK_STATUS (status, "cairo_set_matrix(infinity)"); + + + /* test cairo_set_font_matrix with invalid matrix */ + cr2 = cairo_create (target); + cairo_set_font_matrix (cr2, &invalid); + + /* draw some text to force the font to be resolved */ + cairo_show_text (cr2, "hello"); + + status = cairo_status (cr2); + cairo_destroy (cr2); + CHECK_STATUS (status, "cairo_set_font_matrix(invalid)"); + + /* test cairo_set_font_matrix with bogus matrix */ + cr2 = cairo_create (target); + cairo_set_font_matrix (cr2, &bogus); + + /* draw some text to force the font to be resolved */ + cairo_show_text (cr2, "hello"); + + status = cairo_status (cr2); + cairo_destroy (cr2); + CHECK_STATUS (status, "cairo_set_font_matrix(NaN)"); + + /* test cairo_set_font_matrix with ∞ matrix */ + cr2 = cairo_create (target); + cairo_set_font_matrix (cr2, &inf); + + /* draw some text to force the font to be resolved */ + cairo_show_text (cr2, "hello"); + + status = cairo_status (cr2); + cairo_destroy (cr2); + CHECK_STATUS (status, "cairo_set_font_matrix(infinity)"); + + + /* test cairo_scaled_font_create with invalid matrix */ + cr2 = cairo_create (target); + font_face = cairo_get_font_face (cr2); + font_options = cairo_font_options_create (); + cairo_get_font_options (cr, font_options); + scaled_font = cairo_scaled_font_create (font_face, + &invalid, + &identity, + font_options); + status = cairo_scaled_font_status (scaled_font); + CHECK_STATUS (status, "cairo_scaled_font_create(invalid)"); + + cairo_scaled_font_destroy (scaled_font); + + scaled_font = cairo_scaled_font_create (font_face, + &identity, + &invalid, + font_options); + status = cairo_scaled_font_status (scaled_font); + CHECK_STATUS (status, "cairo_scaled_font_create(invalid)"); + + cairo_scaled_font_destroy (scaled_font); + cairo_font_options_destroy (font_options); + cairo_destroy (cr2); + + /* test cairo_scaled_font_create with bogus matrix */ + cr2 = cairo_create (target); + font_face = cairo_get_font_face (cr2); + font_options = cairo_font_options_create (); + cairo_get_font_options (cr, font_options); + scaled_font = cairo_scaled_font_create (font_face, + &bogus, + &identity, + font_options); + status = cairo_scaled_font_status (scaled_font); + CHECK_STATUS (status, "cairo_scaled_font_create(NaN)"); + + cairo_scaled_font_destroy (scaled_font); + + scaled_font = cairo_scaled_font_create (font_face, + &identity, + &bogus, + font_options); + status = cairo_scaled_font_status (scaled_font); + CHECK_STATUS (status, "cairo_scaled_font_create(NaN)"); + + cairo_scaled_font_destroy (scaled_font); + cairo_font_options_destroy (font_options); + cairo_destroy (cr2); + + /* test cairo_scaled_font_create with ∞ matrix */ + cr2 = cairo_create (target); + font_face = cairo_get_font_face (cr2); + font_options = cairo_font_options_create (); + cairo_get_font_options (cr, font_options); + scaled_font = cairo_scaled_font_create (font_face, + &inf, + &identity, + font_options); + status = cairo_scaled_font_status (scaled_font); + CHECK_STATUS (status, "cairo_scaled_font_create(infinity)"); + + cairo_scaled_font_destroy (scaled_font); + + scaled_font = cairo_scaled_font_create (font_face, + &identity, + &inf, + font_options); + status = cairo_scaled_font_status (scaled_font); + CHECK_STATUS (status, "cairo_scaled_font_create(infinity)"); + + cairo_scaled_font_destroy (scaled_font); + cairo_font_options_destroy (font_options); + cairo_destroy (cr2); + + + /* test cairo_pattern_set_matrix with invalid matrix */ + pattern = cairo_pattern_create_rgb (1.0, 1.0, 1.0); + cairo_pattern_set_matrix (pattern, &invalid); + status = cairo_pattern_status (pattern); + CHECK_STATUS (status, "cairo_pattern_set_matrix(invalid)"); + cairo_pattern_destroy (pattern); + + /* test cairo_pattern_set_matrix with bogus matrix */ + pattern = cairo_pattern_create_rgb (1.0, 1.0, 1.0); + cairo_pattern_set_matrix (pattern, &bogus); + status = cairo_pattern_status (pattern); + CHECK_STATUS (status, "cairo_pattern_set_matrix(NaN)"); + cairo_pattern_destroy (pattern); + + /* test cairo_pattern_set_matrix with ∞ matrix */ + pattern = cairo_pattern_create_rgb (1.0, 1.0, 1.0); + cairo_pattern_set_matrix (pattern, &inf); + status = cairo_pattern_status (pattern); + CHECK_STATUS (status, "cairo_pattern_set_matrix(infinity)"); + cairo_pattern_destroy (pattern); + + + /* test invalid transformations */ + cr2 = cairo_create (target); + cairo_translate (cr2, bogus.xx, bogus.yy); + CHECK_STATUS (status, "cairo_translate(NaN, NaN)"); + cairo_destroy (cr2); + + cr2 = cairo_create (target); + cairo_translate (cr2, 0, bogus.yy); + CHECK_STATUS (status, "cairo_translate(0, NaN)"); + cairo_destroy (cr2); + + cr2 = cairo_create (target); + cairo_translate (cr2, bogus.xx, 0); + CHECK_STATUS (status, "cairo_translate(NaN, 0)"); + cairo_destroy (cr2); + + cr2 = cairo_create (target); + cairo_translate (cr2, inf.xx, inf.yy); + CHECK_STATUS (status, "cairo_translate(∞, ∞)"); + cairo_destroy (cr2); + + cr2 = cairo_create (target); + cairo_translate (cr2, 0, inf.yy); + CHECK_STATUS (status, "cairo_translate(0, ∞)"); + cairo_destroy (cr2); + + cr2 = cairo_create (target); + cairo_translate (cr2, inf.xx, 0); + CHECK_STATUS (status, "cairo_translate(∞, 0)"); + cairo_destroy (cr2); + + + cr2 = cairo_create (target); + cairo_scale (cr2, bogus.xx, bogus.yy); + CHECK_STATUS (status, "cairo_scale(NaN, NaN)"); + cairo_destroy (cr2); + + cr2 = cairo_create (target); + cairo_scale (cr2, 1, bogus.yy); + CHECK_STATUS (status, "cairo_scale(1, NaN)"); + cairo_destroy (cr2); + + cr2 = cairo_create (target); + cairo_scale (cr2, bogus.xx, 1); + CHECK_STATUS (status, "cairo_scale(NaN, 1)"); + cairo_destroy (cr2); + + cr2 = cairo_create (target); + cairo_scale (cr2, inf.xx, inf.yy); + CHECK_STATUS (status, "cairo_scale(∞, ∞)"); + cairo_destroy (cr2); + + cr2 = cairo_create (target); + cairo_scale (cr2, 1, inf.yy); + CHECK_STATUS (status, "cairo_scale(1, ∞)"); + cairo_destroy (cr2); + + cr2 = cairo_create (target); + cairo_scale (cr2, inf.xx, 1); + CHECK_STATUS (status, "cairo_scale(∞, 1)"); + cairo_destroy (cr2); + + cr2 = cairo_create (target); + cairo_scale (cr2, bogus.xx, bogus.yy); + CHECK_STATUS (status, "cairo_scale(0, 0)"); + cairo_destroy (cr2); + + cr2 = cairo_create (target); + cairo_scale (cr2, 1, bogus.yy); + CHECK_STATUS (status, "cairo_scale(1, 0)"); + cairo_destroy (cr2); + + cr2 = cairo_create (target); + cairo_scale (cr2, bogus.xx, 1); + CHECK_STATUS (status, "cairo_scale(0, 1)"); + cairo_destroy (cr2); + + + cr2 = cairo_create (target); + cairo_rotate (cr2, bogus.xx); + CHECK_STATUS (status, "cairo_rotate(NaN)"); + cairo_destroy (cr2); + + cr2 = cairo_create (target); + cairo_rotate (cr2, inf.xx); + CHECK_STATUS (status, "cairo_rotate(∞)"); + cairo_destroy (cr2); + +#if HAVE_FECLEAREXCEPT + feclearexcept (FE_INVALID); +#endif + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (invalid_matrix, + "Test that all relevant public functions return CAIRO_STATUS_INVALID_MATRIX as appropriate", + "api, matrix", /* keywords */ + NULL, /* requirements */ + 0, 0, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/inverse-text.c b/local/recipes/libs/cairo/source/test/inverse-text.c new file mode 100644 index 0000000000..c8d7aea62a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/inverse-text.c @@ -0,0 +1,67 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2010 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + * Chris Wilson + */ + +#include "cairo-test.h" + +#define TEXT_SIZE 12 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* This is just the inverse of select-font-face.c */ + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 1, 1, 1); + + cairo_set_font_size (cr, TEXT_SIZE); + cairo_move_to (cr, 0, TEXT_SIZE); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Serif", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, "i-am-serif"); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, " i-am-sans"); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans Mono", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, " i-am-mono"); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (inverse_text, + "Tests rendering of inverse text (white-on-black)", + "font, text", /* keywords */ + NULL, /* requirements */ + 192, TEXT_SIZE + 4, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/inverted-clip.c b/local/recipes/libs/cairo/source/test/inverted-clip.c new file mode 100644 index 0000000000..b05dd6b6b5 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/inverted-clip.c @@ -0,0 +1,56 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* An assertion failure found by Rico Tzschichholz */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_set_source_rgb (cr, 0, 1, 0); + + cairo_arc (cr, 50, 50, 40, 0, 2 * M_PI); + cairo_clip_preserve (cr); + + cairo_paint (cr); + + cairo_rectangle (cr, 0, 0, 100, 100); + cairo_reset_clip (cr); + cairo_clip (cr); + + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (inverted_clip, + "Clip + InvertedClip should be opaque", + "clip, paint", /* keywords */ + "target=raster", /* requirements */ + 100, 100, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/joins-loop.c b/local/recipes/libs/cairo/source/test/joins-loop.c new file mode 100644 index 0000000000..f0b7bc11d3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/joins-loop.c @@ -0,0 +1,100 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 10. +#define SIZE (8 * LINE_WIDTH) +#define PAD (1 * LINE_WIDTH) + + +static void +make_path (cairo_t *cr) +{ + cairo_move_to (cr, 0, 0); + cairo_rel_curve_to (cr, + SIZE, 0, + 0, SIZE, + SIZE, SIZE); + cairo_rel_line_to (cr, -SIZE, 0); + cairo_rel_curve_to (cr, + SIZE, 0, + 0, -SIZE, + SIZE, -SIZE); + cairo_close_path (cr); +} + +static void +draw_joins (cairo_t *cr) +{ + cairo_save (cr); + cairo_translate (cr, PAD, PAD); + + make_path (cr); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_stroke (cr); + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_stroke (cr); + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_stroke (cr); + cairo_translate (cr, SIZE + PAD, 0.); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_set_line_width (cr, LINE_WIDTH); + + draw_joins (cr); + + /* and reflect to generate the opposite vertex ordering */ + cairo_translate (cr, 0, height); + cairo_scale (cr, 1, -1); + + draw_joins (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (joins_loop, + "A loopy concave shape", + "stroke", /* keywords */ + NULL, /* requirements */ + 3*(SIZE+PAD)+PAD, 2*(SIZE+PAD)+2*PAD, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/joins-retrace.c b/local/recipes/libs/cairo/source/test/joins-retrace.c new file mode 100644 index 0000000000..9a2cf708b3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/joins-retrace.c @@ -0,0 +1,109 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 10. +#define SIZE (8 * LINE_WIDTH) +#define PAD (1 * LINE_WIDTH) + + +static void +make_path (cairo_t *cr) +{ + cairo_move_to (cr, 0, SIZE/2 + LINE_WIDTH); + cairo_rel_line_to (cr, SIZE, 0); + cairo_rel_line_to (cr, -SIZE, 0); + cairo_close_path (cr); + + cairo_move_to (cr, 3*SIZE/4, 0); + cairo_rel_line_to (cr, -SIZE/2, SIZE); + cairo_rel_line_to (cr, SIZE/2, -SIZE); + cairo_close_path (cr); + + cairo_move_to (cr, 0, SIZE/2-LINE_WIDTH); + cairo_rel_curve_to (cr, + SIZE/2, -2*LINE_WIDTH, + SIZE/2, 2*LINE_WIDTH, + SIZE, 0); + cairo_rel_curve_to (cr, + -SIZE/2, 2*LINE_WIDTH, + -SIZE/2, -2*LINE_WIDTH, + -SIZE, 0); + cairo_close_path (cr); +} + +static void +draw_joins (cairo_t *cr) +{ + cairo_save (cr); + cairo_translate (cr, PAD, PAD); + + make_path (cr); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_stroke (cr); + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_stroke (cr); + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_stroke (cr); + cairo_translate (cr, SIZE + PAD, 0.); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_set_line_width (cr, LINE_WIDTH); + + draw_joins (cr); + + /* and reflect to generate the opposite vertex ordering */ + cairo_translate (cr, 0, height); + cairo_scale (cr, 1, -1); + + draw_joins (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (joins_retrace, + "A shape that repeats upon itself", + "stroke", /* keywords */ + NULL, /* requirements */ + 3*(SIZE+PAD)+PAD, 2*(SIZE+PAD)+2*PAD, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/joins-star.c b/local/recipes/libs/cairo/source/test/joins-star.c new file mode 100644 index 0000000000..17c1b4e668 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/joins-star.c @@ -0,0 +1,99 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 10. +#define SIZE (8 * LINE_WIDTH) +#define PAD (1 * LINE_WIDTH) + + +static void +make_path (cairo_t *cr) +{ +#define PROTRUSION 20 + cairo_move_to (cr, SIZE/2-PROTRUSION, LINE_WIDTH); + cairo_line_to (cr, SIZE-LINE_WIDTH, SIZE/2+PROTRUSION); + cairo_line_to (cr, SIZE-LINE_WIDTH, SIZE/2-PROTRUSION); + cairo_line_to (cr, SIZE/2-PROTRUSION, SIZE-LINE_WIDTH); + cairo_line_to (cr, SIZE/2+PROTRUSION, SIZE-LINE_WIDTH); + cairo_line_to (cr, LINE_WIDTH, SIZE/2-PROTRUSION); + cairo_line_to (cr, LINE_WIDTH, SIZE/2+PROTRUSION); + cairo_line_to (cr, SIZE/2+PROTRUSION, LINE_WIDTH); + cairo_close_path (cr); +} + +static void +draw_joins (cairo_t *cr) +{ + cairo_save (cr); + cairo_translate (cr, PAD, PAD); + + make_path (cr); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_stroke (cr); + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_stroke (cr); + cairo_translate (cr, SIZE + PAD, 0.); + + make_path (cr); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_stroke (cr); + cairo_translate (cr, SIZE + PAD, 0.); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_set_line_width (cr, LINE_WIDTH); + + draw_joins (cr); + + /* and reflect to generate the opposite vertex ordering */ + cairo_translate (cr, 0, height); + cairo_scale (cr, 1, -1); + + draw_joins (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (joins_star, + "A nice and simple concave shape", + "stroke", /* keywords */ + NULL, /* requirements */ + 3*(SIZE+PAD)+PAD, 2*(SIZE+PAD)+PAD, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/joins.c b/local/recipes/libs/cairo/source/test/joins.c new file mode 100644 index 0000000000..40ef72e21d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/joins.c @@ -0,0 +1,109 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 12. +#define SIZE (5 * LINE_WIDTH) +#define PAD (2 * LINE_WIDTH) + +static void +make_path (cairo_t *cr) +{ + const struct { + double x, y; + } scales[] = { + { 1, 1 }, + { -1, 1 }, + { 1, -1 }, + { -1, -1 }, + }; + unsigned int i, j; + + for (j = 0; j < ARRAY_LENGTH (scales); j++) { + cairo_save (cr); + /* include reflections to flip the orientation of the join */ + cairo_scale (cr, scales[j].x, scales[j].y); + for (i = 0; i < 3; i++) { + cairo_new_sub_path (cr); + cairo_move_to (cr, 0, -9*LINE_WIDTH/4 - 2); + cairo_line_to (cr, 0, -2*LINE_WIDTH - 2); + cairo_line_to (cr, LINE_WIDTH/4, -2*LINE_WIDTH - 2); + cairo_rotate (cr, M_PI / 4.); + } + cairo_restore (cr); + } +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_line_join_t join; + + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_set_line_width (cr, LINE_WIDTH); + cairo_translate (cr, PAD + SIZE / 2., PAD + SIZE / 2.); + + for (join = CAIRO_LINE_JOIN_MITER; join <= CAIRO_LINE_JOIN_BEVEL; join++) { + cairo_save (cr); + + cairo_set_line_join (cr, join); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + make_path (cr); + cairo_stroke (cr); + + cairo_translate (cr, 0, SIZE + PAD); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + make_path (cr); + cairo_stroke (cr); + + cairo_translate (cr, 0, SIZE + PAD); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + make_path (cr); + cairo_stroke (cr); + + cairo_restore (cr); + + cairo_translate (cr, SIZE + PAD, 0); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (joins, + "Test joins", + "stroke, joins", /* keywords */ + NULL, /* requirements */ + 3 * (PAD + SIZE) + PAD, + 3 * (PAD + SIZE) + PAD, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/jp2.jp2 b/local/recipes/libs/cairo/source/test/jp2.jp2 new file mode 100644 index 0000000000..fe8dd6e54a Binary files /dev/null and b/local/recipes/libs/cairo/source/test/jp2.jp2 differ diff --git a/local/recipes/libs/cairo/source/test/jpeg.jpg b/local/recipes/libs/cairo/source/test/jpeg.jpg new file mode 100644 index 0000000000..a1bac1c812 Binary files /dev/null and b/local/recipes/libs/cairo/source/test/jpeg.jpg differ diff --git a/local/recipes/libs/cairo/source/test/large-clip.c b/local/recipes/libs/cairo/source/test/large-clip.c new file mode 100644 index 0000000000..d2380def5a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/large-clip.c @@ -0,0 +1,50 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Soren Sandmann + */ + +#include "cairo-test.h" + +#define SIZE 100 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + cairo_rectangle (cr, 0, 0, 65536 + 25, 65536 + 25); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (large_clip, + "Incorrect clipping when the clip rectangle doesn't fit in 16 bits signed", + "clip, stress", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/large-font.c b/local/recipes/libs/cairo/source/test/large-font.c new file mode 100644 index 0000000000..0a139441c4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/large-font.c @@ -0,0 +1,73 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +/* Bug history: + * + * 2008-05-23: Caolan McNamara noticed a bug in OpenOffice.org where, + * when using a very large font, space would be left for a + * glyph but it would actually be rendered in the wrong + * place. He wrote a minimal test case and posted the bug + * here: + * + * corrupt glyph positions with large font + * https://bugzilla.redhat.com/show_bug.cgi?id=448104 + * + * 2008-05-23: Carl Worth wrote this test for the cairo test suite to + * exercise the bug. + */ + +#include "cairo-test.h" + +#define WIDTH 800 +#define HEIGHT 800 +#define TEXT_SIZE 10000 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* paint white so we don't need separate ref images for + * RGB24 and ARGB32 */ + cairo_set_source_rgb (cr, 1., 1., 1.); + cairo_paint (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_move_to (cr, -TEXT_SIZE / 2, TEXT_SIZE / 2); + cairo_show_text (cr, "xW"); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (large_font, + "Draws a very large font to exercise a glyph-positioning bug", + "stress, font", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/large-source-roi.c b/local/recipes/libs/cairo/source/test/large-source-roi.c new file mode 100644 index 0000000000..dfd3554d7f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/large-source-roi.c @@ -0,0 +1,78 @@ +/* + * Copyright © 2009 Joonas Pihlaja + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include "cairo-test.h" + +/* This test attempts to trigger failures in those clone_similar + * backend methods that have size restrictions. */ + +static cairo_surface_t * +create_large_source (int width, int height) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 1,0,0); /* red */ + cairo_paint (cr); + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return surface; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *source; + /* Since 1cc750ed92a936d84b47cac696aaffd226e1c02e pixman will not + * paint on the source surface if source_width > 30582. */ + double source_width = 30000.0; + + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + + /* Create an excessively wide source image, all red. */ + source = create_large_source (source_width, height); + + /* Set a transform so that the source is scaled down to fit in the + * destination horizontally and then paint the entire source to + * the context. */ + cairo_scale (cr, width/source_width, 1.0); + cairo_set_source_surface (cr, source, 0, 0); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + + cairo_surface_destroy (source); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (large_source_roi, + "Uses a all of a large source image.", + "stress, source", /* keywords */ + NULL, /* requirements */ + 7, 7, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/large-source.c b/local/recipes/libs/cairo/source/test/large-source.c new file mode 100644 index 0000000000..2b6b84fb48 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/large-source.c @@ -0,0 +1,100 @@ +/* + * Copyright © Chris Wilson, 2008 + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Chris Wilson + */ + +#include "cairo-test.h" + +/* This is a test case for the following bug: + * + * crafted gif file will crash firefox + * [XError: 'BadAlloc (insufficient resources for operation)'] + * https://bugzilla.mozilla.org/show_bug.cgi?id=424333 + */ + +#ifdef WORDS_BIGENDIAN +#define RED_MASK 0xA0 +#define GREEN_MASK 0xA +#else +#define RED_MASK 0x5 +#define GREEN_MASK 0x50 +#endif + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + unsigned char *data; + + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_paint (cr); + + surface = cairo_image_surface_create (CAIRO_FORMAT_A1, 32000, 20); + data = cairo_image_surface_get_data (surface); + if (data != NULL) { + int stride = cairo_image_surface_get_stride (surface); + int width = cairo_image_surface_get_width (surface); + int height = cairo_image_surface_get_height (surface); + int x, y; + + for (y = 0; y < height; y++) { + for (x = 0; x < (width + 7) / 8; x++) + data[x] = RED_MASK; + data += stride; + } + cairo_surface_mark_dirty (surface); + } + + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + cairo_mask_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + + surface = cairo_image_surface_create (CAIRO_FORMAT_A1, 20, 32000); + data = cairo_image_surface_get_data (surface); + if (data != NULL) { + int stride = cairo_image_surface_get_stride (surface); + int width = cairo_image_surface_get_width (surface); + int height = cairo_image_surface_get_height (surface); + int x, y; + + for (y = 0; y < height; y++) { + for (x = 0; x < (width + 7) / 8; x++) + data[x] = GREEN_MASK; + data += stride; + } + cairo_surface_mark_dirty (surface); + } + + cairo_set_source_rgb (cr, 0, 1, 0); /* green */ + cairo_mask_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (large_source, + "Exercises mozilla bug 424333 - handling of massive images", + "stress, source", /* keywords */ + NULL, /* requirements */ + 20, 20, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/large-twin-antialias-mixed.c b/local/recipes/libs/cairo/source/test/large-twin-antialias-mixed.c new file mode 100644 index 0000000000..9626a9dd2e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/large-twin-antialias-mixed.c @@ -0,0 +1,97 @@ +/* + * Copyright 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_scaled_font_t * +create_twin (cairo_t *cr, cairo_antialias_t antialias) +{ + cairo_font_options_t *options; + + cairo_select_font_face (cr, + "@cairo:", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + options = cairo_font_options_create (); + cairo_font_options_set_antialias (options, antialias); + cairo_set_font_options (cr, options); + cairo_font_options_destroy (options); + + return cairo_scaled_font_reference (cairo_get_scaled_font (cr)); +} + + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_scaled_font_t *subpixel, *gray, *none; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_set_font_size (cr, 64); + subpixel = create_twin (cr, CAIRO_ANTIALIAS_SUBPIXEL); + gray = create_twin (cr, CAIRO_ANTIALIAS_GRAY); + none = create_twin (cr, CAIRO_ANTIALIAS_NONE); + + cairo_move_to (cr, 4, 64); + cairo_set_scaled_font (cr, subpixel); + cairo_show_text (cr, "Is cairo's"); + cairo_set_scaled_font (cr, gray); + cairo_show_text (cr, " twin"); + cairo_set_scaled_font (cr, none); + cairo_show_text (cr, " giza?"); + + cairo_move_to (cr, 4, 128+16); + cairo_set_scaled_font (cr, gray); + cairo_show_text (cr, "Is cairo's"); + cairo_set_scaled_font (cr, none); + cairo_show_text (cr, " twin"); + cairo_set_scaled_font (cr, subpixel); + cairo_show_text (cr, " giza?"); + + cairo_move_to (cr, 4, 192+32); + cairo_set_scaled_font (cr, none); + cairo_show_text (cr, "Is cairo's"); + cairo_set_scaled_font (cr, gray); + cairo_show_text (cr, " twin"); + cairo_set_scaled_font (cr, subpixel); + cairo_show_text (cr, " giza?"); + + cairo_scaled_font_destroy (none); + cairo_scaled_font_destroy (gray); + cairo_scaled_font_destroy (subpixel); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (large_twin_antialias_mixed, + "Tests the internal font (with intermixed antialiasing)", + "twin, font", /* keywords */ + "target=raster", /* requirements */ + 524, 240, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/leaks.c b/local/recipes/libs/cairo/source/test/leaks.c new file mode 100644 index 0000000000..ad7c85817e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/leaks.c @@ -0,0 +1,62 @@ +/* + * Copyright © 2023 Uli Schlachter + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Uli Schlachter + */ + +#include "cairo-test.h" + + +// Once upon a time, _cairo_gstate_fini(), _cairo_scaled_font_fini_internal(), +// and _cairo_ft_scaled_font_fini() leaked font options. +static cairo_test_status_t +leaks_set_scaled_font (cairo_t *cr, int width, int height) +{ + cairo_font_options_t *opt; + cairo_matrix_t matrix; + cairo_scaled_font_t *font; + + cairo_matrix_init_identity (&matrix); + + opt = cairo_font_options_create (); + cairo_font_options_set_custom_palette_color (opt, 0, 1, 1, 1, 1); + + font = cairo_scaled_font_create (cairo_get_font_face (cr), &matrix, &matrix, opt); + + cairo_set_scaled_font (cr, font); + + cairo_font_options_destroy (opt); + cairo_scaled_font_destroy (font); + + // Fill the output so that the same ref image works for everying + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (leaks_set_scaled_font, + "Regression test for font options memory leak in cairo_set_scaled_font", + "leak", /* keywords */ + NULL, /* requirements */ + 1, 1, + NULL, leaks_set_scaled_font) diff --git a/local/recipes/libs/cairo/source/test/leaky-dash.c b/local/recipes/libs/cairo/source/test/leaky-dash.c new file mode 100644 index 0000000000..12e91ac1db --- /dev/null +++ b/local/recipes/libs/cairo/source/test/leaky-dash.c @@ -0,0 +1,64 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +/* Test case for bug #4863: + * + * stroking problems with wide dashed lines + * https://bugs.freedesktop.org/show_bug.cgi?id=4863 + */ + +#include "cairo-test.h" + +#define WIDTH 71 +#define HEIGHT 28 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double dash[2]; + + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */ + + cairo_set_line_width (cr, 2); + dash[0] = 8.0; + dash[1] = 2.0; + + cairo_rectangle (cr, 2.0, 2.0, 67.0, 24.0); + + cairo_set_dash (cr, dash, 2, 9.0); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (leaky_dash, + "Exercises bug #4863 in which a dashed stroke leaks into half the rectangle being filled" + "\nknown bug (#4863) which has existed since the 1.0 release", + "dash, stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/leaky-dashed-rectangle.c b/local/recipes/libs/cairo/source/test/leaky-dashed-rectangle.c new file mode 100644 index 0000000000..fad859a9f9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/leaky-dashed-rectangle.c @@ -0,0 +1,86 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + * Franz Schmid + */ + +/* Test case for bug reported by Franz Schmid + * https://lists.cairographics.org/archives/cairo/2008-April/013912.html + * + * See also: https://bugs.freedesktop.org/show_bug.cgi?id=17177 + */ + +#include "cairo-test.h" + +#define WIDTH 60 +#define HEIGHT 60 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const double dash[2] = {4, 2}; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0., 0., 0); + + cairo_translate (cr, 0.5, .5); + cairo_set_line_width (cr, 1); /* This is vital to reproduce the bug. */ + + /* First check simple rectangles */ + cairo_set_source_rgb (cr, 0., 0., 0); + cairo_rectangle (cr, -WIDTH/4, -HEIGHT/4, WIDTH, HEIGHT); + cairo_stroke (cr); + cairo_rectangle (cr, WIDTH+WIDTH/4, -HEIGHT/4, -WIDTH, HEIGHT); + cairo_stroke (cr); + cairo_rectangle (cr, -WIDTH/4, HEIGHT+HEIGHT/4, WIDTH, -HEIGHT); + cairo_stroke (cr); + cairo_rectangle (cr, WIDTH+WIDTH/4, HEIGHT+HEIGHT/4, -WIDTH, -HEIGHT); + cairo_stroke (cr); + + cairo_set_dash (cr, dash, 2, 0); + + /* And now dashed. */ + cairo_set_source_rgb (cr, 1., 0., 0); + cairo_rectangle (cr, -WIDTH/4, -HEIGHT/4, WIDTH, HEIGHT); + cairo_stroke (cr); + cairo_set_source_rgb (cr, 0., 1., 0); + cairo_rectangle (cr, WIDTH+WIDTH/4, -HEIGHT/4, -WIDTH, HEIGHT); + cairo_stroke (cr); + cairo_set_source_rgb (cr, 0., 0., 1); + cairo_rectangle (cr, -WIDTH/4, HEIGHT+HEIGHT/4, WIDTH, -HEIGHT); + cairo_stroke (cr); + cairo_set_source_rgb (cr, 1., 1., 0); + cairo_rectangle (cr, WIDTH+WIDTH/4, HEIGHT+HEIGHT/4, -WIDTH, -HEIGHT); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (leaky_dashed_rectangle, + "Exercises bug in which a dashed stroke leaks in from outside the surface", + "dash, stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/leaky-dashed-stroke.c b/local/recipes/libs/cairo/source/test/leaky-dashed-stroke.c new file mode 100644 index 0000000000..457d7ce705 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/leaky-dashed-stroke.c @@ -0,0 +1,166 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +/* Extracted from a test case reported by Jeff Muizelaar found whilst running + * firefox http://people.mozilla.com/~jmuizelaar/BerlinDistricts-check.svg + */ + +#include "cairo-test.h" + +#define WIDTH 205 +#define HEIGHT 260 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const double dash[2] = {.5, .5}; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 1., 0., 0); + + /* By adjusting the miter limit, we can see variations on the artifact. + * cairo_set_miter_limit (cr, 4.); + */ + + cairo_translate (cr, -720, -484); + cairo_scale (cr, 2.5, 2.5); + + cairo_set_dash (cr, dash, 2, 0); + + cairo_move_to (cr, 293.622, 330); + cairo_line_to (cr, 293.703, 337.028); + cairo_line_to (cr, 297.45, 336.851); + cairo_line_to (cr, 308.88, 342.609); + cairo_line_to (cr, 309.736, 346.107); + cairo_line_to (cr, 312.972, 348.128); + cairo_line_to (cr, 312.977, 353.478); + cairo_line_to (cr, 322.486, 359.355); + cairo_line_to (cr, 320.831, 363.642); + cairo_line_to (cr, 315.175, 367.171); + cairo_line_to (cr, 308.987, 365.715); + cairo_line_to (cr, 301.3, 365.964); + cairo_line_to (cr, 304.712, 368.852); + cairo_line_to (cr, 305.349, 373.022); + cairo_line_to (cr, 303.211, 376.551); + cairo_line_to (cr, 304.915, 382.855); + cairo_line_to (cr, 323.715, 400.475); + cairo_line_to (cr, 355.323, 424.072); + cairo_line_to (cr, 443.078, 426.534); + cairo_line_to (cr, 455.26, 400.603); + cairo_line_to (cr, 471.924, 392.604); + cairo_line_to (cr, 478.556, 390.797); + cairo_line_to (cr, 477.715, 386); + cairo_line_to (cr, 456.807, 376.507); + cairo_line_to (cr, 449.134, 368.722); + cairo_line_to (cr, 449.147, 365.847); + cairo_line_to (cr, 439.981, 361.692); + cairo_line_to (cr, 439.994, 358.603); + cairo_line_to (cr, 454.645, 336.128); + cairo_line_to (cr, 434.995, 324.005); + cairo_line_to (cr, 423.884, 319.354); + cairo_line_to (cr, 421.098, 312.569); + cairo_line_to (cr, 424.291, 305.997); + cairo_line_to (cr, 431.308, 305.069); + cairo_line_to (cr, 437.257, 296.882); + cairo_line_to (cr, 448.544, 296.808); + cairo_line_to (cr, 452.113, 290.651); + cairo_line_to (cr, 448.469, 285.483); + cairo_line_to (cr, 442.903, 282.877); + cairo_line_to (cr, 447.798, 281.124); + cairo_line_to (cr, 454.622, 274.911); + cairo_line_to (cr, 449.491, 269.978); + cairo_line_to (cr, 443.666, 253.148); + cairo_line_to (cr, 445.741, 250.834); + cairo_line_to (cr, 441.87, 247.131); + cairo_line_to (cr, 436.932, 246.203); + cairo_line_to (cr, 430.5, 251.252); + cairo_line_to (cr, 427.483, 250.751); + cairo_line_to (cr, 427.26, 253.572); + cairo_line_to (cr, 423.621, 255.539); + cairo_line_to (cr, 423.824, 257.933); + cairo_line_to (cr, 425.239, 259.582); + cairo_line_to (cr, 422.385, 261.443); + cairo_line_to (cr, 421.665, 260.53); + cairo_line_to (cr, 419.238, 262.819); + cairo_line_to (cr, 418.731, 257.849); + cairo_line_to (cr, 419.72, 255.227); + cairo_line_to (cr, 418.786, 250.258); + cairo_line_to (cr, 405.685, 235.254); + cairo_line_to (cr, 427.167, 215.127); + cairo_line_to (cr, 413.852, 196.281); + cairo_line_to (cr, 420.177, 192.379); + cairo_line_to (cr, 419.885, 185.701); + cairo_line_to (cr, 413.401, 185.428); + cairo_line_to (cr, 407.985, 186.863); + cairo_line_to (cr, 397.11, 189.112); + cairo_line_to (cr, 390.505, 186.664); + cairo_line_to (cr, 388.527, 183.694); + cairo_line_to (cr, 336.503, 221.048); + cairo_line_to (cr, 367.028, 241.656); + cairo_line_to (cr, 365.103, 244.117); + cairo_line_to (cr, 364.886, 246.792); + cairo_line_to (cr, 361.467, 247.119); + cairo_line_to (cr, 360.396, 245.525); + cairo_line_to (cr, 356.336, 245.638); + cairo_line_to (cr, 353.344, 242.122); + cairo_line_to (cr, 347.149, 242.876); + cairo_line_to (cr, 341.809, 256.652); + cairo_line_to (cr, 342.232, 268.72); + cairo_line_to (cr, 329.579, 269.095); + cairo_line_to (cr, 327.001, 271.009); + cairo_line_to (cr, 325.579, 275.598); + cairo_line_to (cr, 318.941, 277.313); + cairo_line_to (cr, 306.048, 277.231); + cairo_line_to (cr, 304.071, 276.27); + cairo_line_to (cr, 301.153, 277.175); + cairo_line_to (cr, 293.52, 277.529); + cairo_line_to (cr, 290.682, 281.947); + cairo_line_to (cr, 293.911, 286.63); + cairo_line_to (cr, 302.417, 290.547); + cairo_line_to (cr, 303.521, 294.73); + cairo_line_to (cr, 307.787, 298.088); + cairo_line_to (cr, 311.718, 299.126); + cairo_line_to (cr, 313.255, 302.146); + cairo_line_to (cr, 314.6, 306.206); + cairo_line_to (cr, 322.603, 308.96); + cairo_line_to (cr, 321.718, 314.477); + cairo_line_to (cr, 319.596, 320.341); + cairo_line_to (cr, 300.689, 323.69); + cairo_line_to (cr, 301.232, 326.789); + cairo_line_to (cr, 293.622, 330); + cairo_close_path (cr); + + cairo_stroke (cr); + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (leaky_dashed_stroke, + "Exercises bug in which a dashed stroke leaks in from outside the surface", + "dash, stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/leaky-polygon.c b/local/recipes/libs/cairo/source/test/leaky-polygon.c new file mode 100644 index 0000000000..0ea7094c95 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/leaky-polygon.c @@ -0,0 +1,85 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +/* Bug history + * + * 2005-01-07 Carl Worth + * + * Bug reported: + * + * From: Chris + * Subject: [cairo] Render to image buffer artifacts + * To: cairo@cairographics.org + * Date: Fri, 07 Jan 2005 02:22:28 -0500 + * + * I've attached the code and image that shows this off. Scaling at + * different levels seems to change the corruption. + * + * For some reason there are artifacts in the alpha channel. I don't know + * if that's the only place, but the alpha channel looks bad. + * + * If you run the code and parse the attached image, directing stdout to a + * file, you can see in the lower left corner there are alpha values where + * it should be transparent. + * [...] + * + * 2005-01-11 Carl Worth + * + * I trimmed the original test case down to the code that appears here. + * + */ + +#include "cairo-test.h" + +#define WIDTH 21 +#define HEIGHT 21 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_scale (cr, 1.0/(1<<16), 1.0/(1<<16)); + + cairo_move_to (cr, 131072,39321); + cairo_line_to (cr, 1103072,1288088); + cairo_line_to (cr, 1179648,1294990); + cairo_close_path (cr); + + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (leaky_polygon, + "Exercises a corner case in the trapezoid rasterization in which pixels outside the trapezoids received a non-zero alpha", + "fill, trap", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/line-width-large-overlap.c b/local/recipes/libs/cairo/source/test/line-width-large-overlap.c new file mode 100644 index 0000000000..767734f6bf --- /dev/null +++ b/local/recipes/libs/cairo/source/test/line-width-large-overlap.c @@ -0,0 +1,149 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2011 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + */ + +/* + * Test case taken from the WebKit test suite, failure originally reported + * by Zan Dobersek . WebKit test is + * LayoutTests/canvas/philip/tests/2d.path.rect.selfintersect.html + */ + +#include "cairo-test.h" + +#include + +#define LINE_WIDTH 120 +#define SIZE 100 +#define RECT_SIZE 10 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* fill with green so RGB and RGBA tests can share the ref image */ + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_paint (cr); + + /* red to see eventual bugs immediately */ + cairo_set_source_rgb (cr, 1, 0, 0); + + /* big line width */ + cairo_set_line_width (cr, LINE_WIDTH); + + /* rectangle that is smaller than the line width in center of image */ + cairo_rectangle (cr, + (SIZE - RECT_SIZE) / 2, + (SIZE - RECT_SIZE) / 2, + RECT_SIZE, + RECT_SIZE); + + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +/* and again slightly offset to trigger another path */ +static cairo_test_status_t +draw_offset (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, .5, .5); + return draw (cr, width, height); +} + +static cairo_test_status_t +draw_rotated (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, SIZE/2, SIZE/2); + cairo_rotate (cr, M_PI/4); + cairo_translate (cr, -SIZE/2, -SIZE/2); + + return draw (cr, width, height); +} + +static cairo_test_status_t +draw_flipped (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, SIZE/2, SIZE/2); + cairo_scale (cr, -1, 1); + cairo_translate (cr, -SIZE/2, -SIZE/2); + + return draw (cr, width, height); +} + +static cairo_test_status_t +draw_flopped (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, SIZE/2, SIZE/2); + cairo_scale (cr, 1, -1); + cairo_translate (cr, -SIZE/2, -SIZE/2); + + return draw (cr, width, height); +} + +static cairo_test_status_t +draw_dashed (cairo_t *cr, int width, int height) +{ + const double dashes[] = { 4 }; + cairo_set_dash (cr, dashes, 1, 0); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + return draw (cr, width, height); +} + +CAIRO_TEST (line_width_large_overlap, + "Test overlapping lines due to large line width", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) +CAIRO_TEST (line_width_large_overlap_offset, + "Test overlapping lines due to large line width", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw_offset) +CAIRO_TEST (line_width_large_overlap_rotated, + "Test overlapping lines due to large line width", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw_rotated) +CAIRO_TEST (line_width_large_overlap_flipped, + "Test overlapping lines due to large line width", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw_flipped) +CAIRO_TEST (line_width_large_overlap_flopped, + "Test overlapping lines due to large line width", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw_flopped) +CAIRO_TEST (line_width_large_overlap_dashed, + "Test overlapping lines due to large line width", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw_dashed) diff --git a/local/recipes/libs/cairo/source/test/line-width-overlap.c b/local/recipes/libs/cairo/source/test/line-width-overlap.c new file mode 100644 index 0000000000..ac8c234796 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/line-width-overlap.c @@ -0,0 +1,149 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2011 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + */ + +/* + * Test case taken from the WebKit test suite, failure originally reported + * by Zan Dobersek . WebKit test is + * LayoutTests/canvas/philip/tests/2d.path.rect.selfintersect.html + */ + +#include "cairo-test.h" + +#include + +#define LINE_WIDTH 60 +#define SIZE 100 +#define RECT_SIZE 10 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* fill with green so RGB and RGBA tests can share the ref image */ + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_paint (cr); + + /* red to see eventual bugs immediately */ + cairo_set_source_rgb (cr, 1, 0, 0); + + /* big line width */ + cairo_set_line_width (cr, LINE_WIDTH); + + /* rectangle that is smaller than the line width in center of image */ + cairo_rectangle (cr, + (SIZE - RECT_SIZE) / 2, + (SIZE - RECT_SIZE) / 2, + RECT_SIZE, + RECT_SIZE); + + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +/* and again slightly offset to trigger another path */ +static cairo_test_status_t +draw_offset (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, .5, .5); + return draw (cr, width, height); +} + +static cairo_test_status_t +draw_rotated (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, SIZE/2, SIZE/2); + cairo_rotate (cr, M_PI/4); + cairo_translate (cr, -SIZE/2, -SIZE/2); + + return draw (cr, width, height); +} + +static cairo_test_status_t +draw_flipped (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, SIZE/2, SIZE/2); + cairo_scale (cr, -1, 1); + cairo_translate (cr, -SIZE/2, -SIZE/2); + + return draw (cr, width, height); +} + +static cairo_test_status_t +draw_flopped (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, SIZE/2, SIZE/2); + cairo_scale (cr, 1, -1); + cairo_translate (cr, -SIZE/2, -SIZE/2); + + return draw (cr, width, height); +} + +static cairo_test_status_t +draw_dashed (cairo_t *cr, int width, int height) +{ + const double dashes[] = { 4 }; + cairo_set_dash (cr, dashes, 1, 0); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + return draw (cr, width, height); +} + +CAIRO_TEST (line_width_overlap, + "Test overlapping lines due to large line width", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) +CAIRO_TEST (line_width_overlap_offset, + "Test overlapping lines due to large line width", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw_offset) +CAIRO_TEST (line_width_overlap_rotated, + "Test overlapping lines due to large line width", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw_rotated) +CAIRO_TEST (line_width_overlap_flipped, + "Test overlapping lines due to large line width", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw_flipped) +CAIRO_TEST (line_width_overlap_flopped, + "Test overlapping lines due to large line width", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw_flopped) +CAIRO_TEST (line_width_overlap_dashed, + "Test overlapping lines due to large line width", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw_dashed) diff --git a/local/recipes/libs/cairo/source/test/line-width-scale.c b/local/recipes/libs/cairo/source/test/line-width-scale.c new file mode 100644 index 0000000000..037b887fdd --- /dev/null +++ b/local/recipes/libs/cairo/source/test/line-width-scale.c @@ -0,0 +1,178 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +/* This test exercises the various interactions between + * cairo_set_line_width and cairo_scale. Specifically it shows how + * separate transformations can affect the pen for stroking compared + * to the path itself. + * + * This was inspired by an image by Maxim Shemanarev demonstrating the + * flexible-pipeline nature of his Antigrain Geometry project: + * + * http://antigrain.com/tips/line_alignment/conv_order.gif + * + * It also uncovered some behavior in cairo that I found surprising. + * Namely, cairo_set_line_width was not transforming the width + * according the the current CTM, but instead delaying that + * transformation until the time of cairo_stroke. + * + * This delayed behavior was released in cairo 1.0 so we're going to + * document this as the way cairo_set_line_width works rather than + * considering this a bug. + */ + +#define LINE_WIDTH 13 +#define SPLINE 50.0 +#define XSCALE 0.5 +#define YSCALE 2.0 +#define WIDTH (XSCALE * SPLINE * 6.0) +#define HEIGHT (YSCALE * SPLINE * 2.0) + +static void +spline_path (cairo_t *cr) +{ + cairo_save (cr); + { + cairo_move_to (cr, + - SPLINE, 0); + cairo_curve_to (cr, + - SPLINE / 4, - SPLINE, + SPLINE / 4, SPLINE, + SPLINE, 0); + } + cairo_restore (cr); +} + +/* If we scale before setting the line width or creating the path, + * then obviously both will be scaled. */ +static void +scale_then_set_line_width_and_stroke (cairo_t *cr) +{ + cairo_scale (cr, XSCALE, YSCALE); + cairo_set_line_width (cr, LINE_WIDTH); + spline_path (cr); + cairo_stroke (cr); +} + +/* This is used to verify the results of + * scale_then_set_line_width_and_stroke. + * + * It uses save/restore pairs to isolate the scaling of the path and + * line_width and ensures that both are scaled. + */ +static void +scale_path_and_line_width (cairo_t *cr) +{ + cairo_save (cr); + { + cairo_scale (cr, XSCALE, YSCALE); + spline_path (cr); + } + cairo_restore (cr); + + cairo_save (cr); + { + cairo_scale (cr, XSCALE, YSCALE); + cairo_set_line_width (cr, LINE_WIDTH); + cairo_stroke (cr); + } + cairo_restore (cr); +} + +/* This is the case that was surprising. + * + * Setting the line width before scaling doesn't change anything. The + * line width will be interpreted under the CTM in effect at the time + * of cairo_stroke, so the line width will be scaled as well as the + * path here. + */ +static void +set_line_width_then_scale_and_stroke (cairo_t *cr) +{ + cairo_set_line_width (cr, LINE_WIDTH); + cairo_scale (cr, XSCALE, YSCALE); + spline_path (cr); + cairo_stroke (cr); +} + +/* Here then is the way to achieve the alternate result. + * + * This uses save/restore pairs to isolate the scaling of the path and + * line_width and ensures that the path is scaled while the line width + * is not. + */ +static void +scale_path_not_line_width (cairo_t *cr) +{ + cairo_save (cr); + { + cairo_scale (cr, XSCALE, YSCALE); + spline_path (cr); + } + cairo_restore (cr); + + cairo_save (cr); + { + cairo_set_line_width (cr, LINE_WIDTH); + cairo_stroke (cr); + } + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + void (* const figures[4]) (cairo_t *cr) = { + scale_then_set_line_width_and_stroke, + scale_path_and_line_width, + set_line_width_then_scale_and_stroke, + scale_path_not_line_width + }; + + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */ + + for (i = 0; i < 4; i++) { + cairo_save (cr); + cairo_translate (cr, + WIDTH/4 + (i % 2) * WIDTH/2, + HEIGHT/4 + (i / 2) * HEIGHT/2); + (figures[i]) (cr); + cairo_restore (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (line_width_scale, + "Tests interaction of cairo_set_line_width with cairo_scale", + "stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/line-width-tolerance.c b/local/recipes/libs/cairo/source/test/line-width-tolerance.c new file mode 100644 index 0000000000..5a581ca113 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/line-width-tolerance.c @@ -0,0 +1,66 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2011 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + */ + +/* + * Test case taken from the WebKit test suite, failure originally reported + * by Zan Dobersek at + * https://bugs.webkit.org/show_bug.cgi?id=54471 + */ + +#include "cairo-test.h" + +#include + +#define RADIUS 50 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* fill with green so RGB and RGBA tests can share the ref image */ + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_paint (cr); + + /* red to see eventual bugs immediately */ + cairo_set_source_rgb (cr, 1, 0, 0); + + /* stroke 3/4 of a circle where the last quarter would be this + * reference image. Keep just a 1 pixel border. Use a huge line + * width (twice the circle's radius to get it filled completely). + */ + cairo_set_line_width (cr, 2 * RADIUS); + cairo_arc (cr, 1, RADIUS - 1, RADIUS, 0, - M_PI / 2.0); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (line_width_tolerance, + "Test interaction of line width and tolerance when stroking arcs", + "stroke", /* keywords */ + NULL, /* requirements */ + RADIUS, RADIUS, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/line-width-zero.c b/local/recipes/libs/cairo/source/test/line-width-zero.c new file mode 100644 index 0000000000..421b9d2c56 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/line-width-zero.c @@ -0,0 +1,71 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl Worth + */ + +#include "cairo-test.h" + +/* This is a test case for the following bug: + * + * Crash in cairo_stroke_extents when line width is 0 and line cap is ROUND + * (_cairo_pen_find_active_cw_vertex_index) + * https://bugs.freedesktop.org/show_bug.cgi?id=10231 + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double x1, y1, x2, y2; + + cairo_move_to (cr, 0.0, 0.0); + cairo_line_to (cr, 100.0, 100.0); + cairo_set_line_width (cr, 0.0); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_stroke_extents (cr, &x1, &y1, &x2, &y2); + cairo_in_stroke (cr, 50, 50); + cairo_stroke_preserve (cr); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_stroke_extents (cr, &x1, &y1, &x2, &y2); + cairo_in_stroke (cr, 50, 50); + cairo_stroke_preserve (cr); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_stroke_extents (cr, &x1, &y1, &x2, &y2); + cairo_in_stroke (cr, 50, 50); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (line_width_zero, + "Test all stroke operations and all cap,join styles with line width of zero", + "stroke", /* keywords */ + NULL, /* requirements */ + 0, 0, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/line-width.c b/local/recipes/libs/cairo/source/test/line-width.c new file mode 100644 index 0000000000..315ebc393e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/line-width.c @@ -0,0 +1,77 @@ +/* + * Copyright © 2004 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define LINES 5 +#define LINE_LENGTH 10 +#define IMAGE_WIDTH 2 * LINE_LENGTH + 6 +#define IMAGE_HEIGHT ((LINES+4)*LINES)/2 + 2 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + + /* We draw in black, so paint white first. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_translate (cr, 2, 2); + + for (i=0; i < LINES; i++) { + cairo_set_line_width (cr, i+1); + cairo_move_to (cr, 0, 0); + cairo_rel_line_to (cr, LINE_LENGTH, 0); + cairo_stroke (cr); + cairo_move_to (cr, LINE_LENGTH + 2, 0.5); + cairo_rel_line_to (cr, LINE_LENGTH, 0); + cairo_stroke (cr); + cairo_translate (cr, 0, i+3); + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_a1 (cairo_t *cr, int width, int height) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + return draw (cr, width, height); +} + +CAIRO_TEST (line_width, + "Tests cairo_set_line_width", + "stroke", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) +CAIRO_TEST (a1_line_width, + "Tests cairo_set_line_width", + "stroke", /* keywords */ + "target=raster", /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw_a1) diff --git a/local/recipes/libs/cairo/source/test/linear-gradient-extend.c b/local/recipes/libs/cairo/source/test/linear-gradient-extend.c new file mode 100644 index 0000000000..b1328b4256 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/linear-gradient-extend.c @@ -0,0 +1,92 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2010 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +#define NUM_EXTEND 4 +#define HEIGHT 16 +#define WIDTH 16 +#define PAD 3 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + unsigned int i, j; + + cairo_extend_t extend[NUM_EXTEND] = { + CAIRO_EXTEND_NONE, + CAIRO_EXTEND_REPEAT, + CAIRO_EXTEND_REFLECT, + CAIRO_EXTEND_PAD + }; + + cairo_test_paint_checkered (cr); + + pattern = cairo_pattern_create_linear (0, 2*PAD, 0, HEIGHT - 2*PAD); + + cairo_pattern_add_color_stop_rgb (pattern, 0, 0, 0, 1); + cairo_pattern_add_color_stop_rgb (pattern, 1, 0, 0, 1); + + cairo_translate (cr, PAD, PAD); + + for (i = 0; i < 2; i++) { + cairo_save (cr); + + for (j = 0; j < NUM_EXTEND; j++) { + cairo_pattern_set_extend (pattern, extend[j]); + + cairo_reset_clip (cr); + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + + if (i & 1) { + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_mask (cr, pattern); + } else { + cairo_set_source (cr, pattern); + cairo_paint (cr); + } + + cairo_translate (cr, WIDTH+PAD, 0); + } + + cairo_restore (cr); + cairo_translate (cr, 0, HEIGHT+PAD); + } + + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (linear_gradient_extend, + "Tests gradient to solid reduction of linear gradients", + "linear, pattern, extend", /* keywords */ + NULL, /* requirements */ + (WIDTH+PAD) * NUM_EXTEND + PAD, 2*(HEIGHT + PAD) + PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/linear-gradient-large.c b/local/recipes/libs/cairo/source/test/linear-gradient-large.c new file mode 100644 index 0000000000..5646aa4851 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/linear-gradient-large.c @@ -0,0 +1,68 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2010 Krzysztof Kosiński + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Krzysztof Kosiński + */ + +#include "cairo-test.h" + +/* originally reported in https://bugs.freedesktop.org/show_bug.cgi?id=29470 */ + +#define OFFSET 50 +#define SIZE 1000 + +static void mark_point(cairo_t *ct, double x, double y) +{ + cairo_rectangle(ct, x-2, y-2, 4, 4); + cairo_set_source_rgb(ct, 1,0,0); + cairo_fill(ct); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *gr = cairo_pattern_create_linear (SIZE - OFFSET, OFFSET, + OFFSET, SIZE - OFFSET); + + cairo_pattern_add_color_stop_rgb (gr, 0.0, 1, 1, 1); + cairo_pattern_add_color_stop_rgb (gr, 0.0, 0, 0, 0); + cairo_pattern_add_color_stop_rgb (gr, 1.0, 0, 0, 0); + cairo_pattern_add_color_stop_rgb (gr, 1.0, 1, 1, 1); + + cairo_set_source (cr, gr); + cairo_pattern_destroy (gr); + cairo_paint (cr); + + mark_point(cr, SIZE - OFFSET, OFFSET); + mark_point(cr, OFFSET, SIZE - OFFSET); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (linear_gradient_large, + "Tests that large linear gradients get rendered at the correct place", + "linear, pattern", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/linear-gradient-one-stop.c b/local/recipes/libs/cairo/source/test/linear-gradient-one-stop.c new file mode 100644 index 0000000000..09c4b9d237 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/linear-gradient-one-stop.c @@ -0,0 +1,90 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2010 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +#define NUM_EXTEND 4 +#define HEIGHT 16 +#define WIDTH 16 +#define PAD 3 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + unsigned int i, j; + + cairo_extend_t extend[NUM_EXTEND] = { + CAIRO_EXTEND_NONE, + CAIRO_EXTEND_REPEAT, + CAIRO_EXTEND_REFLECT, + CAIRO_EXTEND_PAD + }; + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + + cairo_translate (cr, PAD, PAD); + + for (i = 0; i < 3; i++) { + cairo_save (cr); + + for (j = 0; j < NUM_EXTEND; j++) { + cairo_reset_clip (cr); + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + + if (i == 0) + pattern = cairo_pattern_create_linear (0, 2*PAD, 0, HEIGHT - 2*PAD); + else if (i == 1) + pattern = cairo_pattern_create_linear (2*PAD, 2*PAD, HEIGHT - 2*PAD, HEIGHT - 2*PAD); + else if (i == 2) + pattern = cairo_pattern_create_linear (2*PAD, 0, HEIGHT - 2*PAD, 0); + + cairo_pattern_add_color_stop_rgb (pattern, 0.25, 0, 0, 1); + cairo_pattern_set_extend (pattern, extend[j]); + + cairo_set_source (cr, pattern); + cairo_paint (cr); + + cairo_pattern_destroy (pattern); + + cairo_translate (cr, WIDTH+PAD, 0); + } + + cairo_restore (cr); + cairo_translate (cr, 0, HEIGHT+PAD); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (linear_gradient_one_stop, + "Tests linear gradients with a single stop", + "gradient,linear,", /* keywords */ + NULL, /* requirements */ + (WIDTH+PAD) * NUM_EXTEND + PAD, 3*(HEIGHT + PAD) + PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/linear-gradient-reflect.c b/local/recipes/libs/cairo/source/test/linear-gradient-reflect.c new file mode 100644 index 0000000000..8adb587846 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/linear-gradient-reflect.c @@ -0,0 +1,67 @@ +/* + * Copyright © 2007 Tim Rowley + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Tim Rowley + */ + +#include "cairo-test.h" +#include "stdio.h" + +#define WIDTH 50 +#define HEIGHT 50 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_paint (cr); + + cairo_save (cr); + + pattern = cairo_pattern_create_linear (0, 0, 10.0, 0); + + cairo_pattern_add_color_stop_rgb (pattern, 0.0, + 0.0, 0.0, 1.0); + cairo_pattern_add_color_stop_rgb (pattern, 1.0, + 1.0, 0.0, 0.0); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REFLECT); + + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + cairo_rectangle (cr, 0.0, 0.0, WIDTH, HEIGHT); + cairo_fill (cr); + + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (linear_gradient_reflect, + "Tests the drawing of linear gradient with reflect", + "gradient", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/linear-gradient-subset.c b/local/recipes/libs/cairo/source/test/linear-gradient-subset.c new file mode 100644 index 0000000000..ce05e6ec1a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/linear-gradient-subset.c @@ -0,0 +1,127 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Owen Taylor + */ + +#include "cairo-test.h" +#include "stdio.h" + +/* The test matrix is + * + * A) Horizontal B) 5° C) 45° D) Vertical + * 1) Rotated 0° 2) Rotated 45° C) Rotated 90° + * a) 2 stop b) 3 stop + * + * A1a B1a C1a D1a + * A2a B2a C2a D2a + * A3a B3a C3a D3a + * A1b B1b C1b D1b + * A2b B2b C2b D2b + * A3b B3b C3b D3b + */ + +static const double gradient_angles[] = { 0, 45, 90 }; +#define N_GRADIENT_ANGLES 3 +static const double rotate_angles[] = { 0, 45, 90 }; +#define N_ROTATE_ANGLES 3 +static const int n_stops[] = { 2, 3 }; +#define N_N_STOPS 2 + +#define UNIT_SIZE 6 +#define UNIT_SIZE 6 +#define PAD 1 + +#define WIDTH N_GRADIENT_ANGLES * UNIT_SIZE + (N_GRADIENT_ANGLES + 1) * PAD +#define HEIGHT N_N_STOPS * N_ROTATE_ANGLES * UNIT_SIZE + (N_N_STOPS * N_ROTATE_ANGLES + 1) * PAD + +static void +draw_unit (cairo_t *cr, + double gradient_angle, + double rotate_angle, + int n_stops) +{ + cairo_pattern_t *pattern; + + cairo_rectangle (cr, 0, 0, 1, 1); + cairo_clip (cr); + cairo_new_path(cr); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_rectangle (cr, 0, 0, 1, 1); + cairo_fill (cr); + + cairo_translate (cr, 0.5, 0.5); + cairo_scale (cr, 1 / 1.5, 1 / 1.5); + cairo_rotate (cr, rotate_angle); + + pattern = cairo_pattern_create_linear (-0.5 * cos (gradient_angle), -0.5 * sin (gradient_angle), + 0.5 * cos (gradient_angle), 0.5 * sin (gradient_angle)); + + if (n_stops == 2) { + cairo_pattern_add_color_stop_rgb (pattern, 0.2, 0.3, 0.3, 0.3); + cairo_pattern_add_color_stop_rgb (pattern, 0.8, 1.0, 1.0, 1.0); + } else { + cairo_pattern_add_color_stop_rgb (pattern, 0.2, 1.0, 0.0, 0.0); + cairo_pattern_add_color_stop_rgb (pattern, 0.5, 1.0, 1.0, 1.0); + cairo_pattern_add_color_stop_rgb (pattern, 0.8, 0.0, 0.0, 1.0); + } + + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + cairo_rectangle (cr, -0.5, -0.5, 1, 1); + cairo_fill (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i, j, k; + + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_paint (cr); + + for (i = 0; i < N_GRADIENT_ANGLES; i++) + for (j = 0; j < N_ROTATE_ANGLES; j++) + for (k = 0; k < N_N_STOPS; k++) { + cairo_save (cr); + cairo_translate (cr, + PAD + (PAD + UNIT_SIZE) * i, + PAD + (PAD + UNIT_SIZE) * (N_ROTATE_ANGLES * k + j)); + cairo_scale (cr, UNIT_SIZE, UNIT_SIZE); + + draw_unit (cr, + gradient_angles[i] * M_PI / 180., + rotate_angles[j] * M_PI / 180., + n_stops[k]); + cairo_restore (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (linear_gradient_subset, + "Tests the drawing of linear gradients", + "gradient", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/linear-gradient.c b/local/recipes/libs/cairo/source/test/linear-gradient.c new file mode 100644 index 0000000000..054d6abbc4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/linear-gradient.c @@ -0,0 +1,132 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Owen Taylor + */ + +#include "cairo-test.h" +#include "stdio.h" + +/* The test matrix is + * + * A) Horizontal B) 5° C) 45° D) Vertical + * 1) Rotated 0° 2) Rotated 45° C) Rotated 90° + * a) 2 stop b) 3 stop + * + * A1a B1a C1a D1a + * A2a B2a C2a D2a + * A3a B3a C3a D3a + * A1b B1b C1b D1b + * A2b B2b C2b D2b + * A3b B3b C3b D3b + */ + +static const double gradient_angles[] = { 0, 45, 90 }; +#define N_GRADIENT_ANGLES 3 +static const double rotate_angles[] = { 0, 45, 90 }; +#define N_ROTATE_ANGLES 3 +static const int n_stops[] = { 2, 3 }; +#define N_N_STOPS 2 + +#define UNIT_SIZE 6 +#define UNIT_SIZE 6 +#define PAD 1 + +#define WIDTH N_GRADIENT_ANGLES * UNIT_SIZE + (N_GRADIENT_ANGLES + 1) * PAD +#define HEIGHT N_N_STOPS * N_ROTATE_ANGLES * UNIT_SIZE + (N_N_STOPS * N_ROTATE_ANGLES + 1) * PAD + +static void +draw_unit (cairo_t *cr, + double gradient_angle, + double rotate_angle, + int n_stops) +{ + cairo_pattern_t *pattern; + + cairo_rectangle (cr, 0, 0, 1, 1); + cairo_clip (cr); + cairo_new_path(cr); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_rectangle (cr, 0, 0, 1, 1); + cairo_fill (cr); + + cairo_translate (cr, 0.5, 0.5); + cairo_scale (cr, 1 / 1.5, 1 / 1.5); + cairo_rotate (cr, rotate_angle); + + pattern = cairo_pattern_create_linear (-0.5 * cos (gradient_angle), -0.5 * sin (gradient_angle), + 0.5 * cos (gradient_angle), 0.5 * sin (gradient_angle)); + + if (n_stops == 2) { + cairo_pattern_add_color_stop_rgb (pattern, 0., + 0.3, 0.3, 0.3); + cairo_pattern_add_color_stop_rgb (pattern, 1., + 1.0, 1.0, 1.0); + } else { + cairo_pattern_add_color_stop_rgb (pattern, 0., + 1.0, 0.0, 0.0); + cairo_pattern_add_color_stop_rgb (pattern, 0.5, + 1.0, 1.0, 1.0); + cairo_pattern_add_color_stop_rgb (pattern, 1., + 0.0, 0.0, 1.0); + } + + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + cairo_rectangle (cr, -0.5, -0.5, 1, 1); + cairo_fill (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i, j, k; + + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_paint (cr); + + for (i = 0; i < N_GRADIENT_ANGLES; i++) + for (j = 0; j < N_ROTATE_ANGLES; j++) + for (k = 0; k < N_N_STOPS; k++) { + cairo_save (cr); + cairo_translate (cr, + PAD + (PAD + UNIT_SIZE) * i, + PAD + (PAD + UNIT_SIZE) * (N_ROTATE_ANGLES * k + j)); + cairo_scale (cr, UNIT_SIZE, UNIT_SIZE); + + draw_unit (cr, + gradient_angles[i] * M_PI / 180., + rotate_angles[j] * M_PI / 180., + n_stops[k]); + cairo_restore (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (linear_gradient, + "Tests the drawing of linear gradients", + "gradient", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/linear-step-function.c b/local/recipes/libs/cairo/source/test/linear-step-function.c new file mode 100644 index 0000000000..da7e8ca19d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/linear-step-function.c @@ -0,0 +1,60 @@ +/* + * Copyright © 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + pattern = cairo_pattern_create_linear (width/2, 0, width/2, 0); + cairo_pattern_add_color_stop_rgb (pattern, 0, 1, 0, 0); + cairo_pattern_add_color_stop_rgb (pattern, 1, 0, 0, 1); + cairo_set_source (cr, pattern); + + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_NONE); /* nothing */ + cairo_rectangle (cr, 0, 0, width, height/2); + cairo_fill (cr); + + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_PAD); /* step */ + cairo_rectangle (cr, 0, height/2, width, height/2); + cairo_fill (cr); + + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (linear_step_function, + "Tests creating a step function using a linear gradient", + "gradient, linear", /* keywords */ + NULL, /* requirements */ + 40, 40, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/linear-uniform.c b/local/recipes/libs/cairo/source/test/linear-uniform.c new file mode 100644 index 0000000000..2f65535027 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/linear-uniform.c @@ -0,0 +1,63 @@ +/* + * Copyright © 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + /* with alpha */ + pattern = cairo_pattern_create_linear (0, 0, 0, height); + cairo_pattern_add_color_stop_rgba (pattern, 0, 1, 1, 1, .5); + cairo_pattern_add_color_stop_rgba (pattern, 1, 1, 1, 1, .5); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + cairo_rectangle (cr, 0, 0, width/2, height); + cairo_fill (cr); + + /* without alpha */ + pattern = cairo_pattern_create_linear (0, 0, 0, height); + cairo_pattern_add_color_stop_rgb (pattern, 0, 1, 1, 1); + cairo_pattern_add_color_stop_rgb (pattern, 1, 1, 1, 1); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + cairo_rectangle (cr, width/2, 0, width/2, height); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (linear_uniform, + "Tests handling of \"solid\" linear gradients", + "gradient, linear", /* keywords */ + NULL, /* requirements */ + 40, 40, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/long-dashed-lines.c b/local/recipes/libs/cairo/source/test/long-dashed-lines.c new file mode 100644 index 0000000000..4d6ded9a55 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/long-dashed-lines.c @@ -0,0 +1,66 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the author not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The author makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHOR. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + double dashes[] = {6, 3}; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* partially visible rectangle... */ + cairo_rectangle (cr, -0.5, -0.5, 61, 61); + + /* rectangles with intersecting segments... */ + cairo_save (cr); + cairo_translate (cr, 30, 30); + for (i = 0; i < 4; i++) { + cairo_rotate (cr, M_PI / 4); + cairo_rectangle (cr, -37, -15, 74, 30); + } + cairo_restore (cr); + + /* completely invisible rectangle */ + cairo_rectangle (cr, -5, -5, 70, 70); + + cairo_set_dash (cr, dashes, ARRAY_LENGTH (dashes), 0.); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (long_dashed_lines, + "Exercises _cairo_box_intersects_line_segment()", + "dash, stroke, stress", /* keywords */ + NULL, /* requirements */ + 60, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/long-lines.c b/local/recipes/libs/cairo/source/test/long-lines.c new file mode 100644 index 0000000000..ff28edbd81 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/long-lines.c @@ -0,0 +1,88 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Carl D. Worth + * Emmanuel Pacaud + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 1. +#define SIZE 10 +#define LINE_NBR 6 +#define WIDTH (SIZE * (LINE_NBR + 1)) +#define HEIGHT (SIZE * (LINE_NBR + 1)) + + +struct { + double length; + double red, green, blue; +} lines[LINE_NBR] = { + { 100.0, 1.0, 0.0, 0.0 }, + { 10000.0, 0.0, 1.0, 0.0 }, + { 100000.0, 0.0, 0.0, 1.0 }, + { 1000000.0, 1.0, 1.0, 0.0 }, + { 10000000.0, 0.0, 1.0, 1.0 }, + { 100000000.0, 1.0, 0.0, 1.0 } +}; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double pos; + int i; + + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_set_line_width (cr, LINE_WIDTH); + + pos = SIZE + .5; + for (i = 0; i < LINE_NBR; i++) { + cairo_move_to (cr, pos, -lines[i].length); + cairo_line_to (cr, pos, +lines[i].length); + cairo_set_source_rgb (cr, lines[i].red, lines[i].green, lines[i].blue); + cairo_stroke (cr); + pos += SIZE; + } + + /* This should display a perfect vertically centered black line */ + cairo_move_to (cr, -1e100, HEIGHT/2); + cairo_line_to (cr, 1e100, HEIGHT/2); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +/* XFAIL: range overflow of fixed-point */ +CAIRO_TEST (long_lines, + "Test long lines" + "\nLong lines are not drawn due to the limitations of the internal 16.16 fixed-point coordinates", + "stroke, stress", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/make-cairo-test-constructors.py b/local/recipes/libs/cairo/source/test/make-cairo-test-constructors.py new file mode 100644 index 0000000000..0e7d867bbc --- /dev/null +++ b/local/recipes/libs/cairo/source/test/make-cairo-test-constructors.py @@ -0,0 +1,37 @@ +# IMPORTANT: Keep in sync with boilerplate/make-cairo-boilerplate-constructors.py! +import argparse +import sys +import re + +if __name__=='__main__': + parser = argparse.ArgumentParser() + parser.add_argument('output') + parser.add_argument('input', nargs='+') + args = parser.parse_args() + + test_names = [] + + match_test_line = re.compile(r'^CAIRO_TEST.*') + match_test_name = re.compile(r'^CAIRO_TEST.*\((.*),.*') + + for fname in args.input: + with open(fname, 'r', encoding='utf-8') as f: + for l in f.readlines(): + if match_test_line.match(l): + test_names.append(match_test_name.match(l).group(1)) + + with open(args.output, 'w', encoding='utf-8') as f: + f.write('/* WARNING: Autogenerated file - see %s! */\n\n' % sys.argv[0]) + f.write('#include "cairo-test-private.h"\n\n') + f.write('void _cairo_test_runner_register_tests (void);\n\n') + + for test_name in test_names: + f.write('extern void _register_%s (void);\n' % test_name) + + f.write('void\n') + f.write('_cairo_test_runner_register_tests (void)\n') + f.write('{\n') + + for test_name in test_names: + f.write(' _register_%s ();\n' % test_name) + f.write('}\n') diff --git a/local/recipes/libs/cairo/source/test/make-cairo-test-constructors.sh b/local/recipes/libs/cairo/source/test/make-cairo-test-constructors.sh new file mode 100644 index 0000000000..a03d61c19a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/make-cairo-test-constructors.sh @@ -0,0 +1,31 @@ +#! /bin/sh + +set -e + +if test $# -eq 0; then + echo "$0: no input files." >&2 + exit 1 +fi + +cat < + */ + +#include "cairo-test.h" + +#define WIDTH 3 +#define HEIGHT 3 + +/* A single, black pixel */ +static const uint32_t black_pixel_argb = 0xff000000; +static const uint32_t black_pixel = 0x00000000; + +static cairo_bool_t +set_pixel_black(uint8_t *data, int stride, + cairo_format_t format, int x, int y) +{ + switch (format) { + case CAIRO_FORMAT_ARGB32: + case CAIRO_FORMAT_RGB24: + *(uint32_t *)(data + y * stride + 4*x) = black_pixel_argb; + break; + case CAIRO_FORMAT_RGB16_565: + *(uint16_t *)(data + y * stride + 2*x) = black_pixel; + break; + case CAIRO_FORMAT_RGBA128F: + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_A8: + case CAIRO_FORMAT_A1: + case CAIRO_FORMAT_INVALID: + default: + return FALSE; + } + return TRUE; +} + +static cairo_test_status_t +all (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + uint8_t *data; + int stride; + cairo_format_t format; + int i, j; + + /* Fill background white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + surface = cairo_surface_map_to_image (cairo_get_target (cr), NULL); + cairo_surface_flush (surface); + format = cairo_image_surface_get_format (surface); + stride = cairo_image_surface_get_stride (surface); + data = cairo_image_surface_get_data (surface); + if (data) { + for (j = 0; j < HEIGHT; j++) + for (i = 0; i < WIDTH; i++) + if (! set_pixel_black (data, stride, format, i, j)) + return CAIRO_TEST_FAILURE; + } + cairo_surface_mark_dirty (surface); + cairo_surface_unmap_image (cairo_get_target (cr), surface); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +bit (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_rectangle_int_t extents; + cairo_format_t format; + uint8_t *data; + + extents.x = extents.y = extents.width = extents.height = 1; + + /* Fill background white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + surface = cairo_surface_map_to_image (cairo_get_target (cr), &extents); + cairo_surface_flush (surface); + data = cairo_image_surface_get_data (surface); + format = cairo_image_surface_get_format (surface); + if (data) { + if (! set_pixel_black (data, 0, format, 0, 0)) + return CAIRO_TEST_FAILURE; + } + cairo_surface_mark_dirty (surface); + cairo_surface_unmap_image (cairo_get_target (cr), surface); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +fill (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_rectangle_int_t extents; + cairo_t *cr2; + + extents.x = extents.y = extents.width = extents.height = 1; + + /* Fill background white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + surface = cairo_surface_map_to_image (cairo_get_target (cr), &extents); + cr2 = cairo_create (surface); + cairo_set_source_rgb (cr2, 1, 0, 0); + cairo_paint (cr2); + cairo_destroy (cr2); + cairo_surface_unmap_image (cairo_get_target (cr), surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (map_all_to_image, + "Test mapping a surface to an image and modifying it externally", + "image", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, all) +CAIRO_TEST (map_bit_to_image, + "Test mapping a surface to an image and modifying it externally", + "image", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, bit) +CAIRO_TEST (map_to_image_fill, + "Test mapping a surface to an image and modifying it externally", + "image", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, fill) diff --git a/local/recipes/libs/cairo/source/test/mask-alpha.c b/local/recipes/libs/cairo/source/test/mask-alpha.c new file mode 100644 index 0000000000..d66e0ac13f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mask-alpha.c @@ -0,0 +1,82 @@ +/* + * Copyright © 2007 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#define SIZE 40 +#define PAD 2 +#define WIDTH (PAD + SIZE + PAD) +#define HEIGHT WIDTH + +/* This test is designed to test that PDF viewers use the correct + * alpha values in an Alpha SMasks. Some viewers use the color values + * instead of the alpha. The test draws a triangle and rectangle in a + * group then draws the group using cairo_mask(). The mask consists of + * a circle with the rgba (0.4, 0.4, 0.4, 0.8) and the background rgba + * (0.8, 0.8, 0.8, 0.4). + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + + cairo_translate (cr, PAD, PAD); + + /* mask */ + cairo_push_group (cr); + cairo_set_source_rgba (cr, 0.8, 0.8, 0.8, 0.4); + cairo_paint (cr); + cairo_arc (cr, SIZE / 2, SIZE / 2, SIZE / 6, 0., 2. * M_PI); + cairo_set_source_rgba (cr, 0.4, 0.4, 0.4, 0.8); + cairo_fill (cr); + pattern = cairo_pop_group (cr); + + /* source */ + cairo_push_group (cr); + cairo_rectangle (cr, 0.3 * SIZE, 0.2 * SIZE, 0.5 * SIZE, 0.5 * SIZE); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_fill (cr); + cairo_move_to (cr, 0.0, 0.8 * SIZE); + cairo_rel_line_to (cr, 0.7 * SIZE, 0.0); + cairo_rel_line_to (cr, -0.375 * SIZE, -0.6 * SIZE); + cairo_close_path (cr); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_fill (cr); + cairo_pop_group_to_source (cr); + + cairo_mask (cr, pattern); + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (mask_alpha, + "A simple test painting a group through a circle mask", + "mask, alpha", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/mask-ctm.c b/local/recipes/libs/cairo/source/test/mask-ctm.c new file mode 100644 index 0000000000..205ab06916 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mask-ctm.c @@ -0,0 +1,80 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *mask_surface; + cairo_pattern_t *mask; + uint32_t data[] = { + 0x80000000, 0x80000000, + 0x80000000, 0x80000000, + }; + cairo_matrix_t matrix; + + mask_surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_ARGB32, 2, 2, 8); + mask = cairo_pattern_create_for_surface (mask_surface); + + cairo_set_source_rgb (cr, 1.0, 0, 0); + + /* We can translate with the CTM, with the pattern matrix, or with + * both. */ + + /* 1. CTM alone. */ + cairo_save (cr); + { + cairo_translate (cr, 2, 2); + cairo_mask (cr, mask); + } + cairo_restore (cr); + + /* 2. Pattern matrix alone. */ + cairo_matrix_init_translate (&matrix, -4, -4); + cairo_pattern_set_matrix (mask, &matrix); + + cairo_mask (cr, mask); + + /* 3. CTM + pattern matrix */ + cairo_translate (cr, 2, 2); + cairo_mask (cr, mask); + + cairo_pattern_destroy (mask); + + cairo_surface_finish (mask_surface); /* data goes out of scope */ + cairo_surface_destroy (mask_surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (mask_ctm, + "Test that cairo_mask is affected properly by the CTM", + "mask", /* keywords */ + NULL, /* requirements */ + 10, 10, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/mask-glyphs.c b/local/recipes/libs/cairo/source/test/mask-glyphs.c new file mode 100644 index 0000000000..2e7b703011 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mask-glyphs.c @@ -0,0 +1,187 @@ +/* + * Copyright 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#include + +static const char *png_filename = "romedalen.png"; + +#define WIDTH 800 +#define HEIGHT 600 + +static cairo_status_t +_image_to_glyphs (cairo_surface_t *image, + int channel, + int level, + cairo_scaled_font_t *scaled_font, + double tx, double ty, + cairo_glyph_t *glyphs, + int *num_glyphs) +{ + int width, height, stride; + const unsigned char *data; + int x, y, z, n; + + width = cairo_image_surface_get_width (image); + height = cairo_image_surface_get_height (image); + stride = cairo_image_surface_get_stride (image); + data = cairo_image_surface_get_data (image); + + n = 0; + for (y = 0; y < height; y++) { + const uint32_t *row = (uint32_t *) (data + y * stride); + + for (x = 0; x < width; x++) { + z = (row[x] >> channel) & 0xff; + if (z == level) { + double xx, yy, zz; + char c = n % 26 + 'a'; + int count = 1; + cairo_glyph_t *glyphs_p = &glyphs[n]; + cairo_status_t status; + + xx = 4 * (x - width/2.) + width/2.; + yy = 4 * (y - height/2.) + height/2.; + + zz = z / 1000.; + xx = xx + zz*(width/2. - xx); + yy = yy + zz*(height/2. - yy); + + cairo_scaled_font_text_to_glyphs (scaled_font, + tx + xx, ty + yy, + &c, 1, + &glyphs_p, &count, + NULL, NULL, + NULL); + status = cairo_scaled_font_status (scaled_font); + if (status) + return status; + + assert (glyphs_p == &glyphs[n]); + assert (count == 1); + n++; + } + } + } + + *num_glyphs = n; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_render_image (cairo_t *cr, + int width, int height, + cairo_surface_t *image) +{ + int ww, hh; + cairo_glyph_t *glyphs; + cairo_pattern_t *mask; + cairo_scaled_font_t *scaled_font; + double tx, ty; + const struct { + int shift; + double red; + double green; + double blue; + } channel[3] = { + { 0, 0.9, 0.3, 0.4 }, + { 8, 0.4, 0.9, 0.3 }, + { 16, 0.3, 0.4, 0.9 }, + }; + unsigned int n, i; + + ww = cairo_image_surface_get_width (image); + hh = cairo_image_surface_get_height (image); + + glyphs = cairo_glyph_allocate (ww * hh); + if (glyphs == NULL) + return CAIRO_STATUS_NO_MEMORY; + + tx = (width - ww) / 2.; + ty = (height - hh) / 2.; + + cairo_set_font_size (cr, 5); + scaled_font = cairo_get_scaled_font (cr); + + for (i = 0; i < ARRAY_LENGTH (channel); i++) { + cairo_push_group_with_content (cr, CAIRO_CONTENT_ALPHA); + for (n = 0; n < 256; n++) { + cairo_status_t status; + int num_glyphs; + + status = _image_to_glyphs (image, channel[i].shift, n, + scaled_font, + tx, ty, glyphs, &num_glyphs); + if (status) { + cairo_glyph_free (glyphs); + return status; + } + + cairo_set_source_rgba (cr, + 0, 0, 0, + .15 + .85 * n / 255.); + cairo_show_glyphs (cr, glyphs, num_glyphs); + } + mask = cairo_pop_group (cr); + cairo_set_source_rgb (cr, + channel[i].red, + channel[i].green, + channel[i].blue); + cairo_mask (cr, mask); + cairo_pattern_destroy (mask); + } + + cairo_glyph_free (glyphs); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *image; + cairo_status_t status; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + image = cairo_test_create_surface_from_png (ctx, png_filename); + status = cairo_surface_status (image); + if (status) + return cairo_test_status_from_status (ctx, status); + + status = _render_image (cr, width, height, image); + cairo_surface_destroy (image); + + return cairo_test_status_from_status (ctx, status); +} + +CAIRO_TEST (mask_glyphs, + "Creates a mask using a distorted array of overlapping glyphs", + "mask, glyphs", /* keywords */ + "slow", /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/mask-surface-ctm.c b/local/recipes/libs/cairo/source/test/mask-surface-ctm.c new file mode 100644 index 0000000000..064de3c54e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mask-surface-ctm.c @@ -0,0 +1,71 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *mask; + uint32_t data[] = { + 0x80000000, 0x80000000, + 0x80000000, 0x80000000, + }; + + mask = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_ARGB32, 2, 2, 8); + + cairo_set_source_rgb (cr, 1.0, 0, 0); + + /* We can translate with the CTM, with the mask_surface offset, or + * with both. */ + + /* 1. CTM alone. */ + cairo_save (cr); + { + cairo_translate (cr, 2, 2); + cairo_mask_surface (cr, mask, 0, 0); + } + cairo_restore (cr); + + /* 2. Offset alone. */ + cairo_mask_surface (cr, mask, 4, 4); + + /* 3. CTM + offset */ + cairo_translate (cr, 2, 2); + cairo_mask_surface (cr, mask, 4, 4); + + cairo_surface_finish (mask); /* data goes out of scope */ + cairo_surface_destroy (mask); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (mask_surface_ctm, + "Test that cairo_mask_surface is affected properly by the CTM", + "mask", /* keywords */ + NULL, /* requirements */ + 10, 10, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/mask-transformed-image.c b/local/recipes/libs/cairo/source/test/mask-transformed-image.c new file mode 100644 index 0000000000..13c8fe7fce --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mask-transformed-image.c @@ -0,0 +1,96 @@ +/* + * Copyright 2008 Kai-Uwe Behrmann + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Kai-Uwe Behrmann not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Kai-Uwe Behrmann makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * KAI_UWE BEHRMANN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL KAI_UWE BEHRMANN BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Kai-Uwe Behrmann + * Chris Wilson + */ + +#include "cairo-test.h" + +static const char png_filename[] = "romedalen.png"; + +static cairo_surface_t * +create_mask (cairo_t *dst, int width, int height) +{ + cairo_surface_t *mask; + cairo_t *cr; + + mask = cairo_image_surface_create (CAIRO_FORMAT_A8, width, height); + cr = cairo_create (mask); + cairo_surface_destroy (mask); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_rectangle (cr, width/4, height/4, width/2, height/2); + cairo_fill (cr); + + mask = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return mask; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *image, *mask; + + image = cairo_test_create_surface_from_png (ctx, png_filename); + mask = create_mask (cr, 40, 40); + + /* opaque background */ + cairo_paint (cr); + + /* center */ + cairo_translate (cr, + (width - cairo_image_surface_get_width (image)) / 2., + (height - cairo_image_surface_get_height (image)) / 2.); + + /* rotate 30 degree around the center */ + cairo_translate (cr, width/2., height/2.); + cairo_rotate (cr, -30 * 2 * M_PI / 360); + cairo_translate (cr, -width/2., -height/2.); + + /* place the image on our surface */ + cairo_set_source_surface (cr, image, 0, 0); + + /* reset the drawing matrix */ + cairo_identity_matrix (cr); + + /* fill nicely */ + cairo_scale (cr, width / 40., height / 40.); + + /* apply the mask */ + cairo_mask_surface (cr, mask, 0, 0); + + cairo_surface_destroy (mask); + cairo_surface_destroy (image); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (mask_transformed_image, + "Test that cairo_mask() is affected properly by the CTM and not the image", + "mask", /* keywords */ + NULL, /* requirements */ + 80, 80, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/mask-transformed-similar.c b/local/recipes/libs/cairo/source/test/mask-transformed-similar.c new file mode 100644 index 0000000000..c37deb2c0e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mask-transformed-similar.c @@ -0,0 +1,98 @@ +/* + * Copyright 2008 Kai-Uwe Behrmann + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Kai-Uwe Behrmann not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Kai-Uwe Behrmann makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * KAI_UWE BEHRMANN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL KAI_UWE BEHRMANN BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Kai-Uwe Behrmann + * Chris Wilson + */ + +#include "cairo-test.h" + +static const char png_filename[] = "romedalen.png"; + +static cairo_surface_t * +create_mask (cairo_t *dst, int width, int height) +{ + cairo_surface_t *mask; + cairo_t *cr; + + mask = cairo_surface_create_similar (cairo_get_target (dst), + CAIRO_CONTENT_ALPHA, + width, height); + cr = cairo_create (mask); + cairo_surface_destroy (mask); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_rectangle (cr, width/4, height/4, width/2, height/2); + cairo_fill (cr); + + mask = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return mask; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *image, *mask; + + image = cairo_test_create_surface_from_png (ctx, png_filename); + mask = create_mask (cr, 40, 40); + + /* opaque background */ + cairo_paint (cr); + + /* center */ + cairo_translate (cr, + (width - cairo_image_surface_get_width (image)) / 2., + (height - cairo_image_surface_get_height (image)) / 2.); + + /* rotate 30 degree around the center */ + cairo_translate (cr, width/2., height/2.); + cairo_rotate (cr, -30 * 2 * M_PI / 360); + cairo_translate (cr, -width/2., -height/2.); + + /* place the image on our surface */ + cairo_set_source_surface (cr, image, 0, 0); + + /* reset the drawing matrix */ + cairo_identity_matrix (cr); + + /* fill nicely */ + cairo_scale (cr, width / 40., height / 40.); + + /* apply the mask */ + cairo_mask_surface (cr, mask, 0, 0); + + cairo_surface_destroy (mask); + cairo_surface_destroy (image); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (mask_transformed_similar, + "Test that cairo_mask() is affected properly by the CTM and not the image", + "mask", /* keywords */ + NULL, /* requirements */ + 80, 80, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/mask.c b/local/recipes/libs/cairo/source/test/mask.c new file mode 100644 index 0000000000..89f4c3cc2a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mask.c @@ -0,0 +1,246 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Owen Taylor + * Kristian Høgsberg + */ + +#include "cairo-test.h" +#include +#include + +#define WIDTH 16 +#define HEIGHT 16 +#define PAD 2 + +static const char *png_filename = "romedalen.png"; +static cairo_surface_t *image; + +static void +set_solid_pattern (const cairo_test_context_t *ctx, cairo_t *cr, int x, int y) +{ + cairo_set_source_rgb (cr, 0, 0, 0.6); +} + +static void +set_translucent_pattern (const cairo_test_context_t *ctx, cairo_t *cr, int x, int y) +{ + cairo_set_source_rgba (cr, 0, 0, 0.6, 0.5); +} + +static void +set_gradient_pattern (const cairo_test_context_t *ctx, cairo_t *cr, int x, int y) +{ + cairo_pattern_t *pattern; + + pattern = + cairo_pattern_create_linear (x, y, x + WIDTH, y + HEIGHT); + cairo_pattern_add_color_stop_rgba (pattern, 0, 1, 1, 1, 1); + cairo_pattern_add_color_stop_rgba (pattern, 1, 0, 0, 0.4, 1); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); +} + +static void +set_image_pattern (const cairo_test_context_t *ctx, cairo_t *cr, int x, int y) +{ + cairo_pattern_t *pattern; + + if (image == NULL || cairo_surface_status (image)) { + cairo_surface_destroy (image); + image = cairo_test_create_surface_from_png (ctx, png_filename); + } + + pattern = cairo_pattern_create_for_surface (image); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); +} + +static void +mask_polygon (cairo_t *cr, int x, int y) +{ + cairo_surface_t *mask_surface; + cairo_t *cr2; + + mask_surface = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, + WIDTH, HEIGHT); + cr2 = cairo_create (mask_surface); + cairo_surface_destroy (mask_surface); + + cairo_save (cr2); + cairo_set_operator (cr2, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr2); + cairo_restore (cr2); + + cairo_set_source_rgb (cr2, 1, 1, 1); /* white */ + + cairo_new_path (cr2); + cairo_move_to (cr2, 0, 0); + cairo_line_to (cr2, 0, HEIGHT); + cairo_line_to (cr2, WIDTH / 2, 3 * HEIGHT / 4); + cairo_line_to (cr2, WIDTH, HEIGHT); + cairo_line_to (cr2, WIDTH, 0); + cairo_line_to (cr2, WIDTH / 2, HEIGHT / 4); + cairo_close_path (cr2); + cairo_fill (cr2); + + cairo_mask_surface (cr, cairo_get_target (cr2), x, y); + cairo_destroy (cr2); +} + +static void +mask_alpha (cairo_t *cr, int x, int y) +{ + cairo_paint_with_alpha (cr, 0.75); +} + +static void +mask_gradient (cairo_t *cr, int x, int y) +{ + cairo_pattern_t *pattern; + + pattern = cairo_pattern_create_linear (x, y, + x + WIDTH, y + HEIGHT); + + cairo_pattern_add_color_stop_rgba (pattern, + 0, + 1, 1, 1, 1); + cairo_pattern_add_color_stop_rgba (pattern, + 1, + 1, 1, 1, 0); + + cairo_mask (cr, pattern); + + cairo_pattern_destroy (pattern); +} + +static void +clip_none (cairo_t *cr, int x, int y) +{ +} + +static void +clip_rects (cairo_t *cr, int x, int y) +{ + int height = HEIGHT / 3; + + cairo_new_path (cr); + cairo_rectangle (cr, x, y, WIDTH, height); + cairo_rectangle (cr, x, y + 2 * height, WIDTH, height); + cairo_clip (cr); +} + +static void +clip_circle (cairo_t *cr, int x, int y) +{ + cairo_new_path (cr); + cairo_arc (cr, x + WIDTH / 2, y + HEIGHT / 2, + WIDTH / 2, 0, 2 * M_PI); + cairo_clip (cr); + cairo_new_path (cr); +} + +static void (* const pattern_funcs[])(const cairo_test_context_t *ctx, cairo_t *cr, int x, int y) = { + set_solid_pattern, + set_translucent_pattern, + set_gradient_pattern, + set_image_pattern, +}; + +static void (* const mask_funcs[])(cairo_t *cr, int x, int y) = { + mask_alpha, + mask_gradient, + mask_polygon, +}; + +static void (* const clip_funcs[])(cairo_t *cr, int x, int y) = { + clip_none, + clip_rects, + clip_circle, +}; + +#define IMAGE_WIDTH (ARRAY_LENGTH (pattern_funcs) * (WIDTH + PAD) + PAD) +#define IMAGE_HEIGHT (ARRAY_LENGTH (mask_funcs) * ARRAY_LENGTH (clip_funcs) * (HEIGHT + PAD) + PAD) + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *tmp_surface; + size_t i, j, k; + cairo_t *cr2; + + /* Some of our drawing is unbounded, so we draw each test to + * a temporary surface and copy over. + */ + tmp_surface = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + IMAGE_WIDTH, IMAGE_HEIGHT); + cr2 = cairo_create (tmp_surface); + cairo_surface_destroy (tmp_surface); + + for (k = 0; k < ARRAY_LENGTH (clip_funcs); k++) { + for (j = 0; j < ARRAY_LENGTH (mask_funcs); j++) { + for (i = 0; i < ARRAY_LENGTH (pattern_funcs); i++) { + int x = i * (WIDTH + PAD) + PAD; + int y = (ARRAY_LENGTH (mask_funcs) * k + j) * (HEIGHT + PAD) + PAD; + + /* Clear intermediate surface we are going to be drawing onto */ + cairo_save (cr2); + cairo_set_operator (cr2, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr2); + cairo_restore (cr2); + + /* draw */ + cairo_save (cr2); + + clip_funcs[k] (cr2, x, y); + pattern_funcs[i] (ctx, cr2, x, y); + mask_funcs[j] (cr2, x, y); + + cairo_restore (cr2); + + /* Copy back to the main pixmap */ + cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_rectangle (cr, x, y, WIDTH, HEIGHT); + cairo_fill (cr); + } + } + } + + cairo_destroy (cr2); + + cairo_surface_destroy (image); + image = NULL; + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (mask, + "Tests of cairo_mask", + "mask", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/mesh-pattern-accuracy.c b/local/recipes/libs/cairo/source/test/mesh-pattern-accuracy.c new file mode 100644 index 0000000000..d1f60b2fa9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mesh-pattern-accuracy.c @@ -0,0 +1,99 @@ +/* + * Copyright © 2009 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" +#include + +#define SIZE 256 + +/* This test is designed to test the accuracy of the rendering of mesh + * patterns. + * + * Color accuracy is tested by a square patch covering the whole + * surface with black and white corners. + * + * Extents accuracy is checked by a small red square patch at the + * center of the surface which should measure 2x2 pixels. + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + double offset; + + cairo_test_paint_checkered (cr); + + pattern = cairo_pattern_create_mesh (); + + cairo_mesh_pattern_begin_patch (pattern); + + cairo_mesh_pattern_move_to (pattern, 0, 0); + cairo_mesh_pattern_line_to (pattern, 1, 0); + cairo_mesh_pattern_line_to (pattern, 1, 1); + cairo_mesh_pattern_line_to (pattern, 0, 1); + + cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 0, 0, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 1, 1, 1); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, 0, 0, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 1, 1); + + cairo_mesh_pattern_end_patch (pattern); + + cairo_mesh_pattern_begin_patch (pattern); + + /* A small 1x1 red patch, that should be rendered as a 2x2 red + * square in the center of the image */ + + offset = 0.5 / SIZE; + + cairo_mesh_pattern_move_to (pattern, 0.5 + offset, 0.5 + offset); + cairo_mesh_pattern_line_to (pattern, 0.5 + offset, 0.5 - offset); + cairo_mesh_pattern_line_to (pattern, 0.5 - offset, 0.5 - offset); + cairo_mesh_pattern_line_to (pattern, 0.5 - offset, 0.5 + offset); + + cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 1, 0, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 1, 0, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, 1, 0, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 0, 0); + + cairo_mesh_pattern_end_patch (pattern); + + cairo_scale (cr, SIZE, SIZE); + + cairo_set_source (cr, pattern); + cairo_paint (cr); + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (mesh_pattern_accuracy, + "Paint mesh pattern", + "mesh, pattern", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/mesh-pattern-conical.c b/local/recipes/libs/cairo/source/test/mesh-pattern-conical.c new file mode 100644 index 0000000000..4e87eec660 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mesh-pattern-conical.c @@ -0,0 +1,135 @@ +/* + * Copyright © 2009 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" +#include + +#define PAT_WIDTH 100 +#define PAT_HEIGHT 100 +#define SIZE PAT_WIDTH +#define PAD 2 +#define WIDTH (PAD + SIZE + PAD) +#define HEIGHT WIDTH + + +/* + * This test is designed to paint a mesh pattern which contains 8 + * circular sectors approximating a conical gradient. + */ + +#define CENTER_X 50 +#define CENTER_Y 50 +#define RADIUS 50 + +static void +sector_patch (cairo_pattern_t *pattern, + double angle_A, + double A_r, double A_g, double A_b, + double angle_B, + double B_r, double B_g, double B_b) +{ + double r_sin_A, r_cos_A; + double r_sin_B, r_cos_B; + double h; + + r_sin_A = RADIUS * sin (angle_A); + r_cos_A = RADIUS * cos (angle_A); + r_sin_B = RADIUS * sin (angle_B); + r_cos_B = RADIUS * cos (angle_B); + + h = 4.0/3.0 * tan ((angle_B - angle_A) / 4.0); + + cairo_mesh_pattern_begin_patch (pattern); + + cairo_mesh_pattern_move_to (pattern, CENTER_X, CENTER_Y); + cairo_mesh_pattern_line_to (pattern, + CENTER_X + r_cos_A, + CENTER_Y + r_sin_A); + + cairo_mesh_pattern_curve_to (pattern, + CENTER_X + r_cos_A - h * r_sin_A, + CENTER_Y + r_sin_A + h * r_cos_A, + CENTER_X + r_cos_B + h * r_sin_B, + CENTER_Y + r_sin_B - h * r_cos_B, + CENTER_X + r_cos_B, + CENTER_Y + r_sin_B); + + cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 1, 1, 1); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, A_r, A_g, A_b); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, B_r, B_g, B_b); + + cairo_mesh_pattern_end_patch (pattern); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, PAD, PAD); + + pattern = cairo_pattern_create_mesh (); + sector_patch (pattern, + 0, 1, 0, 0, + M_PI/4, 1, 1, 0); + sector_patch (pattern, + M_PI/4, 0, 1, 0, + M_PI/2, 0, 1, 1); + sector_patch (pattern, + M_PI/2, 0, 0, 1, + 3*M_PI/4, 1, 0, 1); + sector_patch (pattern, + 3*M_PI/4, 1, 0, 0, + M_PI, 1, 1, 0); + sector_patch (pattern, + -M_PI, 1, 1, 0, + -3*M_PI/4, 0, 1, 0); + sector_patch (pattern, + -3*M_PI/4, 0, 1, 0, + -M_PI/2, 0, 1, 1); + sector_patch (pattern, + -M_PI/2, 0, 1, 1, + -M_PI/4, 0, 0, 1); + sector_patch (pattern, + -M_PI/4, 0, 0, 1, + 0, 1, 0, 0); + + cairo_set_source (cr, pattern); + cairo_paint (cr); + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (mesh_pattern_conical, + "Paint a conical pattern using a mesh pattern", + "conical, mesh, pattern", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/mesh-pattern-control-points.c b/local/recipes/libs/cairo/source/test/mesh-pattern-control-points.c new file mode 100644 index 0000000000..057e7a1f66 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mesh-pattern-control-points.c @@ -0,0 +1,114 @@ +/* + * Copyright © 2009 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#define SIZE 90 +#define PAD 10 +#define WIDTH (PAD + 2 * (SIZE + PAD)) +#define HEIGHT (PAD + SIZE + PAD) + + +/* + * This test is designed to paint a two mesh patches. One with default + * control points and one with a control point at a no default + * location. The control points of both of them are drawn as squares + * to make them visible. + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + unsigned int i, j; + unsigned int num_patches; + double x, y; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, PAD, PAD); + + pattern = cairo_pattern_create_mesh (); + cairo_mesh_pattern_begin_patch (pattern); + + cairo_mesh_pattern_move_to (pattern, 0, 0); + cairo_mesh_pattern_line_to (pattern, SIZE, 0); + cairo_mesh_pattern_line_to (pattern, SIZE, SIZE); + cairo_mesh_pattern_line_to (pattern, 0, SIZE); + + cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 1, 0, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 0, 1, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, 0, 0, 1); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 1, 0); + + cairo_mesh_pattern_set_control_point (pattern, 0, SIZE * .7, SIZE * .7); + cairo_mesh_pattern_set_control_point (pattern, 1, SIZE * .9, SIZE * .7); + cairo_mesh_pattern_set_control_point (pattern, 2, SIZE * .9, SIZE * .9); + cairo_mesh_pattern_set_control_point (pattern, 3, SIZE * .7, SIZE * .9); + + cairo_mesh_pattern_end_patch (pattern); + + cairo_mesh_pattern_begin_patch (pattern); + + cairo_mesh_pattern_move_to (pattern, SIZE + PAD, 0); + cairo_mesh_pattern_line_to (pattern, 2*SIZE + PAD, 0); + cairo_mesh_pattern_line_to (pattern, 2*SIZE + PAD, SIZE); + cairo_mesh_pattern_line_to (pattern, SIZE + PAD, SIZE); + + cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 1, 0, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 0, 1, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, 0, 0, 1); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 1, 0); + + cairo_mesh_pattern_end_patch (pattern); + + cairo_set_source (cr, pattern); + cairo_paint (cr); + + /* mark the location of the control points */ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_mesh_pattern_get_patch_count (pattern, &num_patches); + for (i = 0; i < num_patches; i++) { + for (j = 0; j < 4; j++) { + cairo_mesh_pattern_get_control_point (pattern, i, j, &x, &y); + cairo_rectangle (cr, x - 5, y - 5, 10, 10); + cairo_fill (cr); + } + } + + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + + +CAIRO_TEST (mesh_pattern_control_points, + "Paint mesh pattern with non default control points", + "mesh, pattern", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/mesh-pattern-fold.c b/local/recipes/libs/cairo/source/test/mesh-pattern-fold.c new file mode 100644 index 0000000000..cacd712e76 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mesh-pattern-fold.c @@ -0,0 +1,82 @@ +/* + * Copyright © 2009 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#define SIZE 100 +#define PAD 15 +#define WIDTH (5*SIZE) +#define HEIGHT (5*SIZE) + + +/* This test is designed to paint a mesh pattern which folds along + * both parameters. */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + + cairo_test_paint_checkered (cr); + + pattern = cairo_pattern_create_mesh (); + + cairo_mesh_pattern_begin_patch (pattern); + + cairo_mesh_pattern_move_to (pattern, 1, 1); + + cairo_mesh_pattern_curve_to (pattern, 6, 0, -1, 0, 4, 1); + cairo_mesh_pattern_curve_to (pattern, 5, 6, 5, -1, 4, 4); + cairo_mesh_pattern_curve_to (pattern, -1, 3, 6, 3, 1, 4); + cairo_mesh_pattern_curve_to (pattern, 2, -1, 2, 6, 1, 1); + + cairo_mesh_pattern_set_control_point (pattern, 0, 2, 3); + cairo_mesh_pattern_set_control_point (pattern, 1, 3, 3); + cairo_mesh_pattern_set_control_point (pattern, 2, 3, 2); + cairo_mesh_pattern_set_control_point (pattern, 3, 2, 2); + + cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 1, 0, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 0, 0, 1); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, 0, 0, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 0, 1, 0); + + cairo_mesh_pattern_end_patch (pattern); + + cairo_scale (cr, SIZE, SIZE); + + cairo_set_source (cr, pattern); + cairo_paint (cr); + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (mesh_pattern_fold, + "Paint a mesh pattern with complex folds", + "mesh, pattern", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/mesh-pattern-overlap.c b/local/recipes/libs/cairo/source/test/mesh-pattern-overlap.c new file mode 100644 index 0000000000..969bc73a33 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mesh-pattern-overlap.c @@ -0,0 +1,76 @@ +/* + * Copyright © 2009 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#define SIZE 100 +#define PAD 15 +#define WIDTH (PAD + SIZE + PAD) +#define HEIGHT WIDTH + + +/* This test is designed to paint a mesh pattern with a simple + * fold. */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + + cairo_test_paint_checkered (cr); + + cairo_translate (cr, PAD, PAD); + + pattern = cairo_pattern_create_mesh (); + + cairo_mesh_pattern_begin_patch (pattern); + + cairo_mesh_pattern_move_to (pattern, 0, 0); + cairo_mesh_pattern_curve_to (pattern, 30, -30, 60, 30, 100, 0); + cairo_mesh_pattern_curve_to (pattern, 130, 140, 60, -40, 100, 100); + cairo_mesh_pattern_curve_to (pattern, 60, 70, 30, 130, 0, 100); + cairo_mesh_pattern_curve_to (pattern, -30, -40, 30, 140, 0, 0); + + cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 1, 0, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 0, 1, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, 0, 0, 1); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 1, 0); + + cairo_mesh_pattern_end_patch (pattern); + + cairo_set_source (cr, pattern); + cairo_paint (cr); + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (mesh_pattern_overlap, + "Paint a mesh pattern with a simple fold", + "mesh, pattern", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/mesh-pattern-transformed.c b/local/recipes/libs/cairo/source/test/mesh-pattern-transformed.c new file mode 100644 index 0000000000..5fe0dc048e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mesh-pattern-transformed.c @@ -0,0 +1,107 @@ +/* + * Copyright © 2009 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#define PAT_WIDTH 170 +#define PAT_HEIGHT 170 +#define SIZE PAT_WIDTH +#define PAD 10 +#define WIDTH 190 +#define HEIGHT 140 + + +/* This test is designed to paint a mesh pattern containing two + * overlapping patches transformed in different ways. */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + + cairo_test_paint_checkered (cr); + + cairo_translate (cr, PAD, PAD); + + pattern = cairo_pattern_create_mesh (); + + cairo_mesh_pattern_begin_patch (pattern); + + cairo_mesh_pattern_move_to (pattern, 0, 0); + cairo_mesh_pattern_curve_to (pattern, 30, -30, 60, 30, 100, 0); + cairo_mesh_pattern_curve_to (pattern, 60, 30, 130, 60, 100, 100); + cairo_mesh_pattern_curve_to (pattern, 60, 70, 30, 130, 0, 100); + cairo_mesh_pattern_curve_to (pattern, 30, 70, -30, 30, 0, 0); + + cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 1, 0, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 0, 1, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, 0, 0, 1); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 1, 0); + + cairo_mesh_pattern_end_patch (pattern); + + cairo_mesh_pattern_begin_patch (pattern); + + cairo_mesh_pattern_move_to (pattern, 50, 50); + cairo_mesh_pattern_curve_to (pattern, 80, 20, 110, 80, 150, 50); + + cairo_mesh_pattern_curve_to (pattern, 110, 80, 180, 110, 150, 150); + + cairo_mesh_pattern_curve_to (pattern, 110, 120, 80, 180, 50, 150); + + cairo_mesh_pattern_curve_to (pattern, 80, 120, 20, 80, 50, 50); + + cairo_mesh_pattern_set_corner_color_rgba (pattern, 0, 1, 0, 0, 0.3); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 0, 1, 0); + cairo_mesh_pattern_set_corner_color_rgba (pattern, 2, 0, 0, 1, 0.3); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 1, 0); + + cairo_mesh_pattern_end_patch (pattern); + + cairo_scale (cr, .5, .5); + + cairo_set_source (cr, pattern); + cairo_paint (cr); + + cairo_translate (cr, PAT_WIDTH, PAT_HEIGHT); + cairo_translate (cr, PAT_WIDTH/2, PAT_HEIGHT/2); + cairo_rotate (cr, M_PI/4); + cairo_translate (cr, -PAT_WIDTH, -PAT_HEIGHT); + cairo_set_source (cr, pattern); + cairo_paint (cr); + + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (mesh_pattern_transformed, + "Paint mesh pattern with a transformation", + "mesh, pattern", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/mesh-pattern.c b/local/recipes/libs/cairo/source/test/mesh-pattern.c new file mode 100644 index 0000000000..eccbd389aa --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mesh-pattern.c @@ -0,0 +1,94 @@ +/* + * Copyright © 2009 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#define PAT_WIDTH 170 +#define PAT_HEIGHT 170 +#define SIZE PAT_WIDTH +#define PAD 2 +#define WIDTH (PAD + SIZE + PAD) +#define HEIGHT WIDTH + + +/* This test is designed to paint a mesh pattern. The mesh contains + * two overlapping patches */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + + cairo_test_paint_checkered (cr); + + cairo_translate (cr, PAD, PAD); + cairo_translate (cr, 10, 10); + + pattern = cairo_pattern_create_mesh (); + + cairo_mesh_pattern_begin_patch (pattern); + + cairo_mesh_pattern_move_to (pattern, 0, 0); + cairo_mesh_pattern_curve_to (pattern, 30, -30, 60, 30, 100, 0); + cairo_mesh_pattern_curve_to (pattern, 60, 30, 130, 60, 100, 100); + cairo_mesh_pattern_curve_to (pattern, 60, 70, 30, 130, 0, 100); + cairo_mesh_pattern_curve_to (pattern, 30, 70, -30, 30, 0, 0); + + cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 1, 0, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 0, 1, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, 0, 0, 1); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 1, 0); + + cairo_mesh_pattern_end_patch (pattern); + + cairo_mesh_pattern_begin_patch (pattern); + + cairo_mesh_pattern_move_to (pattern, 50, 50); + cairo_mesh_pattern_curve_to (pattern, 80, 20, 110, 80, 150, 50); + cairo_mesh_pattern_curve_to (pattern, 110, 80, 180, 110, 150, 150); + cairo_mesh_pattern_curve_to (pattern, 110, 120, 80, 180, 50, 150); + cairo_mesh_pattern_curve_to (pattern, 80, 120, 20, 80, 50, 50); + + cairo_mesh_pattern_set_corner_color_rgba (pattern, 0, 1, 0, 0, 0.3); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 0, 1, 0); + cairo_mesh_pattern_set_corner_color_rgba (pattern, 2, 0, 0, 1, 0.3); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 1, 0); + + cairo_mesh_pattern_end_patch (pattern); + + cairo_set_source (cr, pattern); + cairo_paint (cr); + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (mesh_pattern, + "Paint mesh pattern", + "mesh, pattern", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/meson.build b/local/recipes/libs/cairo/source/test/meson.build new file mode 100644 index 0000000000..786ac2a849 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/meson.build @@ -0,0 +1,702 @@ +test_sources = [ + 'a1-bug.c', + 'a1-clip.c', + 'a1-fill.c', + 'a1-image-sample.c', + 'a1-mask.c', + 'a1-mask-sample.c', + 'a1-sample.c', + 'a1-traps-sample.c', + 'a1-rasterisation.c', + 'a8-clear.c', + 'a8-mask.c', + 'aliasing.c', + 'alpha-similar.c', + 'arc-direction.c', + 'arc-infinite-loop.c', + 'arc-looping-dash.c', + 'api-special-cases.c', + 'big-line.c', + 'big-empty-box.c', + 'big-empty-triangle.c', + 'big-little-box.c', + 'big-little-triangle.c', + 'bug-spline.c', + 'big-trap.c', + 'bilevel-image.c', + 'bug-277.c', + 'bug-361.c', + 'bug-40410.c', + 'bug-431.c', + 'bug-448.c', + 'bug-535.c', + 'bug-51910.c', + 'bug-75705.c', + 'bug-84115.c', + 'bug-bo-rectangular.c', + 'bug-bo-collins.c', + 'bug-bo-ricotz.c', + 'bug-source-cu.c', + 'bug-extents.c', + 'bug-image-compositor.c', + 'bug-seams.c', + 'caps.c', + 'checkerboard.c', + 'caps-joins.c', + 'caps-joins-alpha.c', + 'caps-joins-curve.c', + 'caps-tails-curve.c', + 'caps-sub-paths.c', + 'clear.c', + 'clear-source.c', + 'clip-all.c', + 'clip-complex-bug61592.c', + 'clip-complex-shape.c', + 'clip-contexts.c', + 'clip-disjoint.c', + 'clip-disjoint-hatching.c', + 'clip-disjoint-quad.c', + 'clip-device-offset.c', + 'clip-double-free.c', + 'clip-draw-unbounded.c', + 'clip-empty.c', + 'clip-empty-group.c', + 'clip-empty-save.c', + 'clip-fill.c', + 'clip-fill-no-op.c', + 'clip-fill-rule.c', + 'clip-fill-rule-pixel-aligned.c', + 'clip-group-shapes.c', + 'clip-image.c', + 'clip-intersect.c', + 'clip-mixed-antialias.c', + 'clip-nesting.c', + 'clip-operator.c', + 'clip-push-group.c', + 'clip-polygons.c', + 'clip-rectilinear.c', + 'clip-shape.c', + 'clip-stroke.c', + 'clip-stroke-no-op.c', + 'clip-text.c', + 'clip-twice.c', + 'clip-twice-rectangle.c', + 'clip-unbounded.c', + 'clip-zero.c', + 'clipped-group.c', + 'clipped-surface.c', + 'close-path.c', + 'close-path-current-point.c', + 'composite-integer-translate-source.c', + 'composite-integer-translate-over.c', + 'composite-integer-translate-over-repeat.c', + 'copy-disjoint.c', + 'copy-path.c', + 'coverage.c', + 'create-for-stream.c', + 'create-from-broken-png-stream.c', + 'create-from-png.c', + 'create-from-png-16bit.c', + 'create-from-png-stream.c', + 'culled-glyphs.c', + 'curve-to-as-line-to.c', + 'dash-caps-joins.c', + 'dash-curve.c', + 'dash-infinite-loop.c', + 'dash-no-dash.c', + 'dash-offset.c', + 'dash-offset-negative.c', + 'dash-scale.c', + 'dash-state.c', + 'dash-zero-length.c', + 'degenerate-arc.c', + 'degenerate-arcs.c', + 'degenerate-curve-to.c', + 'degenerate-dash.c', + 'degenerate-linear-gradient.c', + 'degenerate-path.c', + 'degenerate-pen.c', + 'degenerate-radial-gradient.c', + 'degenerate-rel-curve-to.c', + 'degenerate-solid-dash.c', + 'drunkard-tails.c', + 'device-offset.c', + 'device-offset-fractional.c', + 'device-offset-positive.c', + 'device-offset-scale.c', + 'dithergradient.c', + 'error-setters.c', + 'extend-pad.c', + 'extend-pad-border.c', + 'extend-pad-similar.c', + 'extend-reflect.c', + 'extend-reflect-similar.c', + 'extend-repeat.c', + 'extend-repeat-similar.c', + 'extended-blend.c', + 'fallback.c', + 'fill-alpha.c', + 'fill-alpha-pattern.c', + 'fill-and-stroke.c', + 'fill-and-stroke-alpha.c', + 'fill-and-stroke-alpha-add.c', + 'fill-degenerate-sort-order.c', + 'fill-disjoint.c', + 'fill-empty.c', + 'fill-image.c', + 'fill-missed-stop.c', + 'fill-rule.c', + 'filter-bilinear-extents.c', + 'filter-nearest-offset.c', + 'filter-nearest-transformed.c', + 'finer-grained-fallbacks.c', + 'font-face-get-type.c', + 'font-matrix-translation.c', + 'font-options.c', + 'glyph-cache-pressure.c', + 'glyph-path.c', + 'get-and-set.c', + 'get-clip.c', + 'get-group-target.c', + 'get-path-extents.c', + 'gradient-alpha.c', + 'gradient-constant-alpha.c', + 'gradient-scale-crash.c', + 'gradient-zero-stops.c', + 'gradient-zero-stops-mask.c', + 'group-clip.c', + 'group-paint.c', + 'group-state.c', + 'group-unaligned.c', + 'hairline.c', + 'half-coverage.c', + 'halo.c', + 'hatchings.c', + 'horizontal-clip.c', + 'huge-linear.c', + 'huge-radial.c', + 'image-surface-source.c', + 'image-bug-710072.c', + 'implicit-close.c', + 'infinite-join.c', + 'in-fill-empty-trapezoid.c', + 'in-fill-trapezoid.c', + 'invalid-matrix.c', + 'inverse-text.c', + 'inverted-clip.c', + 'joins.c', + 'joins-loop.c', + 'joins-star.c', + 'joins-retrace.c', + 'large-clip.c', + 'large-font.c', + 'large-source.c', + 'large-source-roi.c', + 'large-twin-antialias-mixed.c', + 'leaks.c', + 'leaky-dash.c', + 'leaky-dashed-rectangle.c', + 'leaky-dashed-stroke.c', + 'leaky-polygon.c', + 'line-width.c', + 'line-width-large-overlap.c', + 'line-width-overlap.c', + 'line-width-scale.c', + 'line-width-tolerance.c', + 'line-width-zero.c', + 'linear-gradient.c', + 'linear-gradient-extend.c', + 'linear-gradient-large.c', + 'linear-gradient-one-stop.c', + 'linear-gradient-reflect.c', + 'linear-gradient-subset.c', + 'linear-step-function.c', + 'linear-uniform.c', + 'long-dashed-lines.c', + 'long-lines.c', + 'map-to-image.c', + 'mask.c', + 'mask-alpha.c', + 'mask-ctm.c', + 'mask-glyphs.c', + 'mask-surface-ctm.c', + 'mask-transformed-image.c', + 'mask-transformed-similar.c', + 'mesh-pattern.c', + 'mesh-pattern-accuracy.c', + 'mesh-pattern-conical.c', + 'mesh-pattern-control-points.c', + 'mesh-pattern-fold.c', + 'mesh-pattern-overlap.c', + 'mesh-pattern-transformed.c', + 'mime-data.c', + 'mime-surface-api.c', + 'miter-precision.c', + 'move-to-show-surface.c', + 'negative-stride-image.c', + 'new-sub-path.c', + 'nil-surface.c', + 'operator.c', + 'operator-alpha.c', + 'operator-alpha-alpha.c', + 'operator-clear.c', + 'operator-source.c', + 'operator-www.c', + 'outline-tolerance.c', + 'overflow.c', + 'over-above-source.c', + 'over-around-source.c', + 'over-below-source.c', + 'over-between-source.c', + 'overlapping-boxes.c', + 'overlapping-glyphs.c', + 'overlapping-dash-caps.c', + 'paint.c', + 'paint-clip-fill.c', + 'paint-repeat.c', + 'paint-source-alpha.c', + 'paint-with-alpha.c', + 'paint-with-alpha-group-clip.c', + 'partial-clip-text.c', + 'partial-coverage.c', + 'pass-through.c', + 'path-append.c', + 'path-currentpoint.c', + 'path-stroke-twice.c', + 'path-precision.c', + 'pattern-get-type.c', + 'pattern-getters.c', + 'pdf-isolated-group.c', + 'pixman-downscale.c', + 'pixman-rotate.c', + 'png.c', + 'push-group.c', + 'push-group-color.c', + 'push-group-path-offset.c', + 'radial-gradient.c', + 'radial-gradient-extend.c', + 'radial-outer-focus.c', + 'random-clips.c', + 'random-intersections-eo.c', + 'random-intersections-nonzero.c', + 'random-intersections-curves-eo.c', + 'random-intersections-curves-nz.c', + 'raster-source.c', + 'record.c', + 'record1414x.c', + 'record2x.c', + 'record90.c', + 'recordflip.c', + 'record-extend.c', + 'record-neg-extents.c', + 'record-mesh.c', + 'record-replay-extend.c', + 'record-transform-paint.c', + 'record-write-png.c', + 'recording-ink-extents.c', + 'recording-surface-pattern.c', + 'recording-surface-extend.c', + 'rectangle-rounding-error.c', + 'rectilinear-fill.c', + 'rectilinear-grid.c', + 'rectilinear-miter-limit.c', + 'rectilinear-dash.c', + 'rectilinear-dash-scale.c', + 'rectilinear-stroke.c', + 'reflected-stroke.c', + 'rel-path.c', + 'rgb24-ignore-alpha.c', + 'rotate-image-surface-paint.c', + 'rotate-stroke-box.c', + 'rotated-clip.c', + 'rounded-rectangle-fill.c', + 'rounded-rectangle-stroke.c', + 'round-join-bug-520.c', + 'sample.c', + 'scale-down-source-surface-paint.c', + 'scale-offset-image.c', + 'scale-offset-similar.c', + 'scale-source-surface-paint.c', + 'scaled-font-zero-matrix.c', + 'stroke-ctm-caps.c', + 'stroke-clipped.c', + 'stroke-image.c', + 'stroke-open-box.c', + 'select-font-face.c', + 'select-font-no-show-text.c', + 'self-copy.c', + 'self-copy-overlap.c', + 'self-intersecting.c', + 'set-source.c', + 'show-glyphs-advance.c', + 'show-glyphs-many.c', + 'show-text-current-point.c', + 'shape-general-convex.c', + 'shape-sierpinski.c', + 'shifted-operator.c', + 'simple.c', + 'skew-extreme.c', + 'smask.c', + 'smask-fill.c', + 'smask-image-mask.c', + 'smask-mask.c', + 'smask-paint.c', + 'smask-stroke.c', + 'smask-text.c', + 'smp-glyph.c', + 'solid-pattern-cache-stress.c', + 'source-clip.c', + 'source-clip-scale.c', + 'source-surface-scale-paint.c', + 'spline-decomposition.c', + 'stride-12-image.c', + 'stroke-pattern.c', + 'subsurface.c', + 'subsurface-image-repeat.c', + 'subsurface-repeat.c', + 'subsurface-reflect.c', + 'subsurface-pad.c', + 'subsurface-modify-child.c', + 'subsurface-modify-parent.c', + 'subsurface-outside-target.c', + 'subsurface-scale.c', + 'subsurface-similar-repeat.c', + 'surface-finish-twice.c', + 'surface-pattern.c', + 'surface-pattern-big-scale-down.c', + 'surface-pattern-operator.c', + 'surface-pattern-scale-down.c', + 'surface-pattern-scale-down-extend.c', + 'surface-pattern-scale-up.c', + 'text-antialias.c', + 'text-antialias-subpixel.c', + 'text-cache-crash.c', + 'text-glyph-range.c', + 'text-pattern.c', + 'text-rotate.c', + 'text-subpixel.c', + 'text-transform.c', + 'text-unhinted-metrics.c', + 'text-zero-len.c', + 'thin-lines.c', + 'tighten-bounds.c', + 'tiger.c', + 'toy-font-face.c', + 'transforms.c', + 'translate-show-surface.c', + 'trap-clip.c', + 'twin.c', + 'twin-antialias-gray.c', + 'twin-antialias-mixed.c', + 'twin-antialias-none.c', + 'twin-antialias-subpixel.c', + 'unaligned-box.c', + 'unantialiased-shapes.c', + 'unbounded-operator.c', + 'unclosed-strokes.c', + 'user-data.c', + 'user-font.c', + 'user-font-color.c', + 'user-font-mask.c', + 'user-font-proxy.c', + 'user-font-rescale.c', + 'user-font-subpixel.c', + 'world-map.c', + 'white-in-noop.c', + 'xcb-huge-image-shm.c', + 'xcb-huge-subimage.c', + 'xcb-stress-cache.c', + 'xcb-snapshot-assert.c', + 'xcomposite-projection.c', + 'xlib-expose-event.c', + 'zero-alpha.c', + 'zero-mask.c', +] + +test_pthread_sources = [ + 'pthread-same-source.c', + 'pthread-show-text.c', + 'pthread-similar.c', +] + +# Only font-variations.c is ft-specific according to Makefile.sources, the other +# depend on fontconfig +test_ft_font_sources = [ + 'font-variations.c', + 'bitmap-font.c', + 'ft-color-font.c', + 'ft-font-create-for-ft-face.c', + 'ft-show-glyphs-positioning.c', + 'ft-show-glyphs-table.c', + 'ft-text-vertical-layout-type1.c', + 'ft-text-vertical-layout-type3.c', + 'ft-text-antialias-none.c', + 'ft-variable-font.c', +] + +test_ft_svg_font_sources = [ + 'ft-svg-color-font.c', +] + +test_ft_svg_ttx_font_sources = [ + 'ft-svg-cairo-logo.c', + 'ft-svg-render.c', + 'ft-svg-render-color.c' +] + +test_quartz_sources = [ + 'quartz-surface-source.c', + 'quartz-color-font.c', +] + +test_pdf_sources = [ + 'pdf-features.c', + 'pdf-mime-data.c', + 'pdf-operators-text.c', + 'pdf-surface-source.c', + 'pdf-tagged-text.c', +] + +test_pdf_structure_sources = [ + 'pdf-structure.c', +] + +test_ps_sources = [ + 'ps-eps.c', + 'ps-features.c', + 'ps-surface-source.c', +] + +test_svg_sources = [ + 'svg-surface.c', + 'svg-clip.c', + 'svg-surface-source.c', +] + +test_xcb_sources = [ + 'xcb-surface-source.c', +] + +test_xlib_sources = [ + 'xlib-surface.c', + 'xlib-surface-source.c', +] + +test_xlib_xrender_sources = [ + 'get-xrender-format.c', +] + +test_multi_page_sources = [ + 'multi-page.c', + 'mime-unique-id.c', +] + +test_fallback_resolution_sources = [ + 'create-regions.c', + 'fallback-resolution.c', +] + +cairo_test_suite_sources = [ + 'buffer-diff.c', + 'cairo-test.c', + 'cairo-test-runner.c', +] + +cairo_test_trace_sources = [ + 'cairo-test-trace.c', + 'buffer-diff.c', +] + +imagediff_sources = [ + 'imagediff.c', + 'buffer-diff.c', +] + +png_flatten_sources = [ + 'png-flatten.c', +] + +pdf2png_sources = [ + 'pdf2png.c', +] + +svg2png_sources = [ + 'svg2png.c', +] + +ps2png_sources = [ + 'ps2png.c', +] + +test_ttx_fonts = [ + 'cairo-logo-font.ttx', + 'cairo-svg-test-color.ttx', + 'cairo-svg-test-doc.ttx', + 'cairo-svg-test-fill.ttx', + 'cairo-svg-test-gradient.ttx', + 'cairo-svg-test-path.ttx', + 'cairo-svg-test-shapes.ttx', + 'cairo-svg-test-stroke.ttx', + 'cairo-svg-test-transform.ttx', +] + +build_any2ppm = false +has_multipage_surfaces = false +add_fallback_resolution = false + +if conf.get('CAIRO_HAS_REAL_PTHREAD', 0) == 1 + test_sources += test_pthread_sources +endif + +if feature_conf.get('CAIRO_HAS_FT_FONT', 0) == 1 and feature_conf.get('CAIRO_HAS_FC_FONT', 0) == 1 + test_sources += test_ft_font_sources + if conf.get('HAVE_FT_SVG_DOCUMENT', 0) == 1 + test_sources += test_ft_svg_font_sources + if conf.get('CAIRO_CAN_TEST_TTX_FONT', 0) == 1 + test_sources += test_ft_svg_ttx_font_sources + endif + endif +endif + +if feature_conf.get('CAIRO_HAS_QUARTZ_SURFACE', 0) == 1 + test_sources += test_quartz_sources +endif + +if feature_conf.get('CAIRO_HAS_PDF_SURFACE', 0) == 1 + test_sources += test_pdf_sources + if host_machine.system() != 'windows' + test_sources += test_pdf_structure_sources + endif + has_multipage_surfaces = true + add_fallback_resolution = true + build_any2ppm = true +endif + +if feature_conf.get('CAIRO_HAS_PS_SURFACE', 0) == 1 + test_sources += test_ps_sources + has_multipage_surfaces = true + add_fallback_resolution = true + build_any2ppm = true +endif + +if feature_conf.get('CAIRO_HAS_SVG_SURFACE', 0) == 1 + test_sources += test_svg_sources + build_any2ppm = true + add_fallback_resolution = true +endif + +if feature_conf.get('CAIRO_HAS_XCB_SURFACE', 0) == 1 + test_sources += test_xcb_sources +endif + +if feature_conf.get('CAIRO_HAS_XLIB_SURFACE', 0) == 1 + test_sources += test_xlib_sources +endif + +if feature_conf.get('CAIRO_HAS_XLIB_XRENDER_SURFACE', 0) == 1 + test_sources += test_xlib_xrender_sources +endif + +if has_multipage_surfaces + test_sources += test_multi_page_sources +endif + +if add_fallback_resolution + test_sources += test_fallback_resolution_sources +endif + +if feature_conf.get('CAIRO_HAS_SCRIPT_SURFACE', 0) == 1 + build_any2ppm = true +endif + +cairo_test_constructors = custom_target('cairo-test-constructors.c', + input: files(test_sources), + output: 'cairo-test-constructors.c', + command: [python3, files('make-cairo-test-constructors.py')[0], '@OUTPUT@', '@INPUT@']) + +test_depends = [] + +subdir('pdiff') + +if conf.get('CAIRO_CAN_TEST_PDF_SURFACE', 0) == 1 + exe = executable('pdf2png', pdf2png_sources, + dependencies: deps + test_deps, + ) +endif + +if conf.get('CAIRO_CAN_TEST_SVG_SURFACE', 0) == 1 + exe = executable('svg2png', svg2png_sources, + dependencies: deps + test_deps, + ) +endif + +if conf.get('CAIRO_HAS_SPECTRE', 0) == 1 + exe = executable('ps2png', ps2png_sources, + dependencies: deps + test_deps, + ) +endif + +if build_any2ppm + any2ppm_exe = executable('any2ppm', 'any2ppm.c', + include_directories: [incbase], + dependencies: deps + test_deps + [libcairo_dep, libcairoscript_dep], + ) + test_depends += [any2ppm_exe] +endif + +if have_shm and conf.get('CAIRO_HAS_INTERPRETER', 0) == 1 + cairo_test_trace_exe = executable('cairo-test-trace', cairo_test_trace_sources, + include_directories: [incbase], + c_args: pthread_c_args, + link_args: extra_link_args, + dependencies: deps + test_deps + [rt_dep, libcairo_dep, cairoboilerplate_dep, libpdiff_dep, libcairomissing_dep, libcairoscript_dep]) +endif + +exe = executable('cairo-test-suite', [cairo_test_suite_sources, test_sources, cairo_test_constructors], + include_directories: [incbase], + link_args: extra_link_args, + dependencies: deps + test_deps + [libcairo_dep, cairoboilerplate_dep, + libpdiff_dep], +) + +fs = import('fs') +build_dir_files = ['completion.bash', 'index.html', 'testtable.js', 'view-test-results.py'] +foreach file : build_dir_files + fs.copyfile(file) +endforeach + +if build_machine.system() != 'windows' + run_command('ln', '-sfn', + meson.current_source_dir(), + meson.current_build_dir() / 'srcdir', + check: true) +endif + +if ttx.found() + # By default, if the output file exists, ttx creates a new name. We specify the full + # output name to make ttx overwrite the existing file instead of creating a new file. + foreach ttx_font : test_ttx_fonts + custom_target(ttx_font, + input: ttx_font, + command: [ ttx, '-q', '-o', '@OUTDIR@' / '@BASENAME@.ttf', '@INPUT@' ], + output: '@BASENAME@.ttf', + build_by_default: true) + endforeach +endif + +env = environment() + +env.set('srcdir', meson.current_source_dir()) + +test('cairo', exe, + timeout: 60 * 60, + env: env, + suite: ['cairo-test-suite', 'slow'], + workdir: meson.current_build_dir(), + depends: test_depends) + +# The SVG renderer debug tools can only be built if the _cairo_debug_svg_render() +# function has been exposed by defining DEBUG_SVG_RENDER +if conf.get('HAVE_FT_SVG_DOCUMENT', 0) == 1 and cc.has_define('DEBUG_SVG_RENDER') + subdir('svg') +endif diff --git a/local/recipes/libs/cairo/source/test/mime-data.c b/local/recipes/libs/cairo/source/test/mime-data.c new file mode 100644 index 0000000000..cea9d7caf8 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mime-data.c @@ -0,0 +1,295 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#include +#include + +/* Basic test to exercise the new mime-data embedding. */ + +static cairo_status_t +read_file (const cairo_test_context_t *ctx, + const char *filename, + unsigned char **data_out, + unsigned int *length_out) +{ + FILE *file; + unsigned char *buf; + unsigned int len; + + file = fopen (filename, "rb"); + if (file == NULL) { + char path[4096]; + + if (errno == ENOMEM) + return CAIRO_STATUS_NO_MEMORY; + + /* try again with srcdir */ + snprintf (path, sizeof (path), + "%s/%s", ctx->srcdir, filename); + file = fopen (path, "rb"); + } + if (file == NULL) { + switch (errno) { + case ENOMEM: + return CAIRO_STATUS_NO_MEMORY; + default: + return CAIRO_STATUS_FILE_NOT_FOUND; + } + } + + fseek (file, 0, SEEK_END); + len = ftell (file); + fseek (file, 0, SEEK_SET); + + buf = xmalloc (len); + *length_out = fread (buf, 1, len, file); + fclose (file); + if (*length_out != len) { + free (buf); + return CAIRO_STATUS_READ_ERROR; + } + + *data_out = buf; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_test_status_t +paint_file (cairo_t *cr, + const char *filename, const char *mime_type, + int x, int y) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *image; + unsigned char *mime_data; + unsigned int mime_length; + cairo_status_t status; + + /* Deliberately use a non-matching MIME images, so that we can identify + * when the MIME representation is used in preference to the plain image + * surface. + */ + status = read_file (ctx, filename, &mime_data, &mime_length); + if (status) + return cairo_test_status_from_status (ctx, status); + + image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 200, 50); + + status = cairo_surface_set_mime_data (image, mime_type, + mime_data, mime_length, + free, mime_data); + if (status) { + cairo_surface_destroy (image); + free (mime_data); + return cairo_test_status_from_status (ctx, status); + } + + cairo_set_source_surface (cr, image, x, y); + cairo_surface_destroy (image); + + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +paint_jbig2_file (cairo_t *cr, int x, int y) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *image; + unsigned char *mime_data; + unsigned int mime_length; + cairo_status_t status; + const char jbig2_image1_filename[] = "image1.jb2"; + const char jbig2_image2_filename[] = "image2.jb2"; + const char jbig2_global_filename[] = "global.jb2"; + + /* Deliberately use a non-matching MIME images, so that we can identify + * when the MIME representation is used in preference to the plain image + * surface. + */ + + /* Image 1 */ + + status = read_file (ctx, jbig2_image1_filename, &mime_data, &mime_length); + if (status) + return cairo_test_status_from_status (ctx, status); + + image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 200, 50); + + status = cairo_surface_set_mime_data (image, CAIRO_MIME_TYPE_JBIG2_GLOBAL_ID, + (unsigned char *)"global", 6, NULL, NULL); + if (status) { + cairo_surface_destroy (image); + return cairo_test_status_from_status (ctx, status); + } + + status = cairo_surface_set_mime_data (image, CAIRO_MIME_TYPE_JBIG2, + mime_data, mime_length, + free, mime_data); + if (status) { + cairo_surface_destroy (image); + free (mime_data); + return cairo_test_status_from_status (ctx, status); + } + + cairo_set_source_surface (cr, image, x, y); + cairo_surface_destroy (image); + + cairo_paint (cr); + + /* Image 2 */ + + status = read_file (ctx, jbig2_image2_filename, &mime_data, &mime_length); + if (status) + return cairo_test_status_from_status (ctx, status); + + image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 200, 50); + + status = cairo_surface_set_mime_data (image, CAIRO_MIME_TYPE_JBIG2_GLOBAL_ID, + (unsigned char *)"global", 6, NULL, NULL); + if (status) { + cairo_surface_destroy (image); + return cairo_test_status_from_status (ctx, status); + } + + status = cairo_surface_set_mime_data (image, CAIRO_MIME_TYPE_JBIG2, + mime_data, mime_length, + free, mime_data); + if (status) { + cairo_surface_destroy (image); + free (mime_data); + return cairo_test_status_from_status (ctx, status); + } + + /* Set the global data */ + status = read_file (ctx, jbig2_global_filename, &mime_data, &mime_length); + if (status) + return cairo_test_status_from_status (ctx, status); + + status = cairo_surface_set_mime_data (image, CAIRO_MIME_TYPE_JBIG2_GLOBAL, + mime_data, mime_length, + free, mime_data); + if (status) { + cairo_surface_destroy (image); + free (mime_data); + return cairo_test_status_from_status (ctx, status); + } + + cairo_set_source_surface (cr, image, x, y + 50); + cairo_surface_destroy (image); + + cairo_paint (cr); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +paint_ccitt_file (cairo_t *cr, int x, int y) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *image; + unsigned char *mime_data; + unsigned int mime_length; + cairo_status_t status; + const char *ccitt_image_filename = "ccitt.g3"; + const char *ccitt_image_params = "Columns=200 Rows=50 K=-1"; + + /* Deliberately use a non-matching MIME images, so that we can identify + * when the MIME representation is used in preference to the plain image + * surface. + */ + + status = read_file (ctx, ccitt_image_filename, &mime_data, &mime_length); + if (status) + return cairo_test_status_from_status (ctx, status); + + image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 200, 50); + + /* Set the CCITT image data */ + status = cairo_surface_set_mime_data (image, CAIRO_MIME_TYPE_CCITT_FAX, + mime_data, mime_length, + free, mime_data); + if (status) { + cairo_surface_destroy (image); + free (mime_data); + return cairo_test_status_from_status (ctx, status); + } + + /* Set the CCITT image parameters */ + status = cairo_surface_set_mime_data (image, CAIRO_MIME_TYPE_CCITT_FAX_PARAMS, + (unsigned char *)ccitt_image_params, + strlen (ccitt_image_params), + NULL, NULL); + if (status) { + cairo_surface_destroy (image); + return cairo_test_status_from_status (ctx, status); + } + + cairo_set_source_surface (cr, image, x, y); + cairo_surface_destroy (image); + + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const char jpg_filename[] = "jpeg.jpg"; + const char png_filename[] = "png.png"; + const char jp2_filename[] = "jp2.jp2"; + cairo_test_status_t status; + + status = paint_file (cr, jpg_filename, CAIRO_MIME_TYPE_JPEG, 0, 0); + if (status) + return status; + + status = paint_file (cr, png_filename, CAIRO_MIME_TYPE_PNG, 0, 50); + if (status) + return status; + + status = paint_file (cr, jp2_filename, CAIRO_MIME_TYPE_JP2, 0, 100); + if (status) + return status; + + status = paint_jbig2_file (cr, 0, 150); + if (status) + return status; + + status = paint_ccitt_file (cr, 0, 250); + if (status) + return status; + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (mime_data, + "Check that the mime-data embedding works", + "jpeg, api", /* keywords */ + NULL, /* requirements */ + 200, 300, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/mime-surface-api.c b/local/recipes/libs/cairo/source/test/mime-surface-api.c new file mode 100644 index 0000000000..8a8da826d8 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mime-surface-api.c @@ -0,0 +1,151 @@ +/* + * Copyright © 2011 Uli Schlachter + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Uli Schlachter + */ + +#include "cairo-test.h" + +static void +mime_data_destroy_func (void *data) +{ + cairo_bool_t *called = data; + *called = TRUE; +} + +static cairo_test_status_t +check_mime_data (cairo_test_context_t *ctx, cairo_surface_t *surface, + const char *mimetype, const unsigned char *data, + unsigned long length) +{ + const unsigned char *data_ret; + unsigned long length_ret; + + cairo_surface_get_mime_data (surface, mimetype, &data_ret, &length_ret); + if (data_ret != data || length_ret != length) { + cairo_test_log (ctx, + "Surface has mime data %p with length %lu, " + "but expected %p with length %lu\n", + data_ret, length_ret, data, length); + return CAIRO_TEST_ERROR; + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +set_and_check_mime_data (cairo_test_context_t *ctx, cairo_surface_t *surface, + const char *mimetype, const unsigned char *data, + unsigned long length, cairo_bool_t *destroy_called) +{ + cairo_status_t status; + + status = cairo_surface_set_mime_data (surface, mimetype, + data, length, + mime_data_destroy_func, + destroy_called); + if (status) { + cairo_test_log (ctx, "Could not set mime data to %s: %s\n", + data, cairo_status_to_string(status)); + return CAIRO_TEST_ERROR; + } + + return check_mime_data (ctx, surface, mimetype, data, length); +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + const char *mimetype = "text/x-uri"; + const char *data1 = "https://www.cairographics.org"; + const char *data2 = "https://cairographics.org/examples/"; + cairo_bool_t destroy1_called = FALSE; + cairo_bool_t destroy2_called = FALSE; + cairo_surface_t *surface; + cairo_test_status_t test_status = CAIRO_TEST_SUCCESS; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 0, 0); + if (cairo_surface_status (surface)) { + cairo_test_log (ctx, "Could not create image surface\n"); + test_status = CAIRO_TEST_ERROR; + goto out; + } + + test_status = check_mime_data (ctx, surface, mimetype, NULL, 0); + if (test_status) + goto out; + + test_status = set_and_check_mime_data (ctx, surface, mimetype, + (const unsigned char *) data1, + strlen (data1), + &destroy1_called); + if (test_status) + goto out; + + if (destroy1_called) { + cairo_test_log (ctx, "MIME data 1 destroyed too early\n"); + test_status = CAIRO_TEST_ERROR; + goto out; + } + + test_status = set_and_check_mime_data (ctx, surface, mimetype, + (const unsigned char *) data2, + strlen (data2), + &destroy2_called); + if (test_status) + goto out; + + if (!destroy1_called) { + cairo_test_log (ctx, "MIME data 1 destroy callback not called\n"); + test_status = CAIRO_TEST_ERROR; + goto out; + } + if (destroy2_called) { + cairo_test_log (ctx, "MIME data 2 destroyed too early\n"); + test_status = CAIRO_TEST_ERROR; + goto out; + } + + test_status = set_and_check_mime_data (ctx, surface, mimetype, + NULL, 0, NULL); + if (test_status) + goto out; + + if (!destroy2_called) { + cairo_test_log (ctx, "MIME data destroy callback not called\n"); + test_status = CAIRO_TEST_ERROR; + goto out; + } + +out: + cairo_surface_destroy (surface); + + return test_status; +} + +CAIRO_TEST (mime_surface_api, + "Check the mime data API", + "api", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/mime-unique-id.c b/local/recipes/libs/cairo/source/test/mime-unique-id.c new file mode 100644 index 0000000000..8d4a161334 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/mime-unique-id.c @@ -0,0 +1,528 @@ +/* + * Copyright © 2017 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + + +/* Check that source surfaces with same CAIRO_MIME_TYPE_UNIQUE_ID are + * embedded only once in PDF/PS. + * + * To exercise all the surface embedding code in PS/PDF, four types of + * source surfaces are painted on each page, each with its own UNIQUE_ID: + * - an image surface + * - a recording surface with a jpeg mime attached + * - a bounded recording surface + * - an unbounded recording surface. + * + * Four pages are generated. Each source is clipped starting with the + * smallest area on the first page increasing to the unclipped size on + * the last page. This is to ensure the output does not embed the + * source clipped to a smaller size than used on subsequent pages. + * + * The test verifies the use of UNIQUE_ID by comparing the file size + * with the expected size. + */ + +#include "cairo-test.h" + +#include +#include +#include + +#include + +#if CAIRO_HAS_PS_SURFACE +#include +#endif + +#if CAIRO_HAS_PDF_SURFACE +#include +#endif + +#define NUM_PAGES 4 + +#define WIDTH 275 +#define HEIGHT 275 + +#define BASENAME "mime-unique-id" + + +/* Expected file size to check that surfaces are embedded only once. + * SIZE_TOLERANCE should be large enough to allow some variation in + * file size due to changes to the PS/PDF surfaces while being small + * enough to catch any attempt to embed the surface more than + * once. The compressed size of each surface embedded in PDF is: + * - image: 108,774 + * - jpeg: 11,400 + * - recording: 17,518 + * + * If the size check fails, manually check the output and if the + * surfaces are still embedded only once, update the expected sizes. + * + * Note: The PS2 output will embed the image more than once due to the + * lower MAX_L2_FORM_DATA for PS2 in cairo-ps-surface.c. + */ +#define PS2_EXPECTED_SIZE 626926 +#define PS3_EXPECTED_SIZE 381555 +#define PDF_EXPECTED_SIZE 162692 +#define SIZE_TOLERANCE 5000 + +static const char *png_filename = "romedalen.png"; +static const char *jpeg_filename = "romedalen.jpg"; + +static FILE * +my_fopen (cairo_test_context_t *ctx, const char *pathname, const char *mode) +{ + FILE *f = fopen (pathname, mode); + if (f == NULL && errno == ENOENT && ctx->srcdir) { + char *srcdir_pathname; + xasprintf (&srcdir_pathname, "%s/%s", ctx->srcdir, pathname); + f = fopen (srcdir_pathname, mode); + free (srcdir_pathname); + } + return f; +} + +static cairo_test_status_t +create_image_surface (cairo_test_context_t *ctx, cairo_surface_t **surface) +{ + cairo_status_t status; + const char *unique_id = "image"; + + *surface = cairo_test_create_surface_from_png (ctx, png_filename); + status = cairo_surface_set_mime_data (*surface, CAIRO_MIME_TYPE_UNIQUE_ID, + (unsigned char *)unique_id, + strlen (unique_id), + NULL, NULL); + if (status) { + cairo_surface_destroy (*surface); + return cairo_test_status_from_status (ctx, status); + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +create_recording_surface_with_mime_jpg (cairo_test_context_t *ctx, cairo_surface_t **surface) +{ + cairo_status_t status; + FILE *f; + unsigned char *data; + long len; + const char *unique_id = "jpeg"; + cairo_rectangle_t extents = { 0, 0, 1, 1 }; + + *surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, &extents); + f = my_fopen (ctx, jpeg_filename, "rb"); + if (f == NULL) { + cairo_test_log (ctx, "Unable to open file %s\n", jpeg_filename); + return CAIRO_TEST_FAILURE; + } + + fseek (f, 0, SEEK_END); + len = ftell(f); + fseek (f, 0, SEEK_SET); + data = malloc (len); + if (fread(data, len, 1, f) != 1) { + cairo_test_log (ctx, "Unable to read file %s\n", jpeg_filename); + return CAIRO_TEST_FAILURE; + } + + fclose(f); + status = cairo_surface_set_mime_data (*surface, + CAIRO_MIME_TYPE_JPEG, + data, len, + free, data); + if (status) { + cairo_surface_destroy (*surface); + return cairo_test_status_from_status (ctx, status); + } + + status = cairo_surface_set_mime_data (*surface, CAIRO_MIME_TYPE_UNIQUE_ID, + (unsigned char *)unique_id, + strlen (unique_id), + NULL, NULL); + if (status) { + cairo_surface_destroy (*surface); + return cairo_test_status_from_status (ctx, status); + } + + return CAIRO_TEST_SUCCESS; +} + +static void +draw_tile (cairo_t *cr) +{ + cairo_move_to (cr, 10 + 5, 10); + cairo_arc (cr, 10, 10, 5, 0, 2*M_PI); + cairo_close_path (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill (cr); + + cairo_move_to (cr, 30, 10-10*0.43); + cairo_line_to (cr, 25, 10+10*0.43); + cairo_line_to (cr, 35, 10+10*0.43); + cairo_close_path (cr); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_fill (cr); + + cairo_rectangle (cr, 5, 25, 10, 10); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_fill (cr); + + cairo_save (cr); + cairo_translate (cr, 30, 30); + cairo_rotate (cr, M_PI/4.0); + cairo_rectangle (cr, -5, -5, 10, 10); + cairo_set_source_rgb (cr, 1, 0, 1); + cairo_fill (cr); + cairo_restore (cr); +} + +#define RECORDING_SIZE 800 +#define TILE_SIZE 40 + +static cairo_test_status_t +create_recording_surface (cairo_test_context_t *ctx, cairo_surface_t **surface, cairo_bool_t bounded) +{ + cairo_status_t status; + int x, y; + cairo_t *cr; + cairo_matrix_t ctm; + int start, size; + const char *bounded_id = "recording bounded"; + const char *unbounded_id = "recording unbounded"; + cairo_rectangle_t extents = { 0, 0, RECORDING_SIZE, RECORDING_SIZE }; + + if (bounded) { + *surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, &extents); + start = 0; + size = RECORDING_SIZE; + } else { + *surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + start = RECORDING_SIZE / 2; + size = RECORDING_SIZE * 2; + } + + /* Draw each tile instead of creating a cairo pattern to make size + * of the emitted recording as large as possible. + */ + cr = cairo_create (*surface); + cairo_set_source_rgb (cr, 1, 1, 0); + cairo_paint (cr); + cairo_get_matrix (cr, &ctm); + for (y = start; y < size; y += TILE_SIZE) { + for (x = start; x < size; x += TILE_SIZE) { + draw_tile (cr); + cairo_translate (cr, TILE_SIZE, 0); + } + cairo_matrix_translate (&ctm, 0, TILE_SIZE); + cairo_set_matrix (cr, &ctm); + } + cairo_destroy (cr); + + status = cairo_surface_set_mime_data (*surface, CAIRO_MIME_TYPE_UNIQUE_ID, + (unsigned char *)(bounded ? bounded_id : unbounded_id), + strlen (bounded ? bounded_id : unbounded_id), + NULL, NULL); + if (status) { + cairo_surface_destroy (*surface); + return cairo_test_status_from_status (ctx, status); + } + + return CAIRO_TEST_SUCCESS; +} + +/* Draw @source scaled to fit @rect and clipped to a rectangle + * @clip_margin units smaller on each side. @rect will be stroked + * with a solid line and the clip rect stroked with a dashed line. + */ +static void +draw_surface (cairo_t *cr, cairo_surface_t *source, cairo_rectangle_int_t *rect, int clip_margin) +{ + cairo_surface_type_t type; + int width, height; + cairo_rectangle_t extents; + const double dashes[2] = { 2, 2 }; + + type = cairo_surface_get_type (source); + if (type == CAIRO_SURFACE_TYPE_IMAGE) { + width = cairo_image_surface_get_width (source); + height = cairo_image_surface_get_height (source); + } else { + if (cairo_recording_surface_get_extents (source, &extents)) { + width = extents.width; + height = extents.height; + } else { + width = RECORDING_SIZE; + height = RECORDING_SIZE; + } + } + + cairo_save (cr); + cairo_rectangle (cr, rect->x, rect->y, rect->width, rect->height); + cairo_stroke (cr); + cairo_rectangle (cr, + rect->x + clip_margin, + rect->y + clip_margin, + rect->width - clip_margin*2, + rect->height - clip_margin*2); + cairo_set_dash (cr, dashes, 2, 0); + cairo_stroke_preserve (cr); + cairo_clip (cr); + + cairo_translate (cr, rect->x, rect->y); + cairo_scale (cr, (double)rect->width/width, (double)rect->height/height); + cairo_set_source_surface (cr, source, 0, 0); + cairo_paint (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw_pages (cairo_test_context_t *ctx, cairo_surface_t *surface) +{ + cairo_t *cr; + int i; + cairo_rectangle_int_t img_rect; + cairo_rectangle_int_t jpg_rect; + cairo_rectangle_int_t bounded_rect; + cairo_rectangle_int_t unbounded_rect; + int clip_margin; + cairo_surface_t *source; + cairo_test_status_t status; + + cr = cairo_create (surface); + + /* target area to fill with the image source */ + img_rect.x = 25; + img_rect.y = 25; + img_rect.width = 100; + img_rect.height = 100; + + /* target area to fill with the recording with jpeg mime source */ + jpg_rect.x = 150; + jpg_rect.y = 25; + jpg_rect.width = 100; + jpg_rect.height = 100; + + /* target area to fill with the bounded recording source */ + bounded_rect.x = 25; + bounded_rect.y = 150; + bounded_rect.width = 100; + bounded_rect.height = 100; + + /* target area to fill with the unbounded recording source */ + unbounded_rect.x = 150; + unbounded_rect.y = 150; + unbounded_rect.width = 100; + unbounded_rect.height = 100; + + /* Draw the image and recording surface on each page. The sources + * are clipped starting with a small clip area on the first page + * and increasing to the source size on last page to ensure the + * embedded source is not clipped to the area used on the first + * page. + * + * The sources are created each time they are used to ensure + * CAIRO_MIME_TYPE_UNIQUE_ID is tested. + */ + for (i = 0; i < NUM_PAGES; i++) { + clip_margin = (NUM_PAGES - i - 1) * 5; + + status = create_image_surface (ctx, &source); + if (status) + return status; + draw_surface (cr, source, &img_rect, clip_margin); + cairo_surface_destroy (source); + + status = create_recording_surface_with_mime_jpg (ctx, &source); + if (status) + return status; + draw_surface (cr, source, &jpg_rect, clip_margin); + cairo_surface_destroy (source); + + status = create_recording_surface (ctx, &source, TRUE); + if (status) + return status; + draw_surface (cr, source, &bounded_rect, clip_margin); + cairo_surface_destroy (source); + + status = create_recording_surface (ctx, &source, FALSE); + if (status) + return status; + draw_surface (cr, source, &unbounded_rect, clip_margin); + cairo_surface_destroy (source); + + cairo_show_page (cr); + } + + cairo_destroy (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +check_file_size (cairo_test_context_t *ctx, const char *filename, long expected_size) +{ + FILE *f; + long size; + + f = my_fopen (ctx, filename, "rb"); + if (f == NULL) { + cairo_test_log (ctx, "Unable to open file %s\n", filename); + return CAIRO_TEST_FAILURE; + } + + fseek (f, 0, SEEK_END); + size = ftell (f); + fclose(f); + + if (labs(size - expected_size) > SIZE_TOLERANCE) { + cairo_test_log (ctx, + "mime-unique-id: File %s has size %ld. Expected size %ld +/- %ld." + " Check if surfaces are embedded once.\n", + filename, size, expected_size, (long)SIZE_TOLERANCE); + return CAIRO_TEST_FAILURE; + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_surface_t *surface; + cairo_status_t status; + char *filename; + cairo_test_status_t result = CAIRO_TEST_UNTESTED; + cairo_test_status_t test_status; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + +#if CAIRO_HAS_PS_SURFACE + if (cairo_test_is_target_enabled (ctx, "ps2")) + { + xasprintf (&filename, "%s/%s.ps2.out.ps", path, BASENAME); + surface = cairo_ps_surface_create (filename, WIDTH, HEIGHT); + status = cairo_surface_status (surface); + if (status) { + cairo_test_log (ctx, "Failed to create ps surface for file %s: %s\n", + filename, cairo_status_to_string (status)); + test_status = CAIRO_TEST_FAILURE; + goto ps2_finish; + } + + cairo_ps_surface_restrict_to_level (surface, CAIRO_PS_LEVEL_2); + + test_status = draw_pages (ctx, surface); + cairo_surface_destroy (surface); + + if (test_status == CAIRO_TEST_SUCCESS) + test_status = check_file_size (ctx, filename, PS2_EXPECTED_SIZE); + + ps2_finish: + cairo_test_log (ctx, "TEST: %s TARGET: %s RESULT: %s\n", + ctx->test->name, + "ps2", + test_status ? "FAIL" : "PASS"); + + if (result == CAIRO_TEST_UNTESTED || test_status == CAIRO_TEST_FAILURE) + result = test_status; + + free (filename); + } + + if (cairo_test_is_target_enabled (ctx, "ps3")) + { + xasprintf (&filename, "%s/%s.ps3.out.ps", path, BASENAME); + surface = cairo_ps_surface_create (filename, WIDTH, HEIGHT); + status = cairo_surface_status (surface); + if (status) { + cairo_test_log (ctx, "Failed to create ps surface for file %s: %s\n", + filename, cairo_status_to_string (status)); + test_status = CAIRO_TEST_FAILURE; + goto ps3_finish; + } + + test_status = draw_pages (ctx, surface); + cairo_surface_destroy (surface); + + if (test_status == CAIRO_TEST_SUCCESS) + test_status = check_file_size (ctx, filename, PS3_EXPECTED_SIZE); + + ps3_finish: + cairo_test_log (ctx, "TEST: %s TARGET: %s RESULT: %s\n", + ctx->test->name, + "ps3", + test_status ? "FAIL" : "PASS"); + + if (result == CAIRO_TEST_UNTESTED || test_status == CAIRO_TEST_FAILURE) + result = test_status; + + free (filename); + } +#endif + +#if CAIRO_HAS_PDF_SURFACE + if (cairo_test_is_target_enabled (ctx, "pdf")) + { + xasprintf (&filename, "%s/%s.pdf.out.pdf", path, BASENAME); + surface = cairo_pdf_surface_create (filename, WIDTH, HEIGHT); + status = cairo_surface_status (surface); + if (status) { + cairo_test_log (ctx, "Failed to create pdf surface for file %s: %s\n", + filename, cairo_status_to_string (status)); + test_status = CAIRO_TEST_FAILURE; + goto pdf_finish; + } + + test_status = draw_pages (ctx, surface); + cairo_surface_destroy (surface); + + if (test_status == CAIRO_TEST_SUCCESS) + test_status = check_file_size (ctx, filename, PDF_EXPECTED_SIZE); + + + pdf_finish: + cairo_test_log (ctx, "TEST: %s TARGET: %s RESULT: %s\n", + ctx->test->name, + "pdf", + test_status ? "FAIL" : "PASS"); + + if (result == CAIRO_TEST_UNTESTED || test_status == CAIRO_TEST_FAILURE) + result = test_status; + + free (filename); + } +#endif + + return result; +} + +CAIRO_TEST (mime_unique_id, + "Check that paginated surfaces embed only one copy of surfaces with the same CAIRO_MIME_TYPE_UNIQUE_ID.", + "paginated", /* keywords */ + "target=vector", /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/miter-precision.c b/local/recipes/libs/cairo/source/test/miter-precision.c new file mode 100644 index 0000000000..3bcdde00de --- /dev/null +++ b/local/recipes/libs/cairo/source/test/miter-precision.c @@ -0,0 +1,72 @@ +/* + * Copyright © 2007 Keith Packard + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Keith Packard + * + * Contributor(s): + * Keith Packard + */ +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double xscale, yscale; + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_miter_limit (cr, 100000); + for (xscale = 1; xscale <= 1000; xscale += 999) + for (yscale = 1; yscale <= 1000; yscale += 999) + { + double max_scale = xscale > yscale ? xscale : yscale; + cairo_save (cr); + if (xscale > 1) + cairo_translate (cr, 50, 0); + if (yscale > 1) + cairo_translate (cr, 0, 50); + cairo_scale (cr, xscale, yscale); + cairo_set_line_width (cr, 10.0 / max_scale); + cairo_move_to (cr, 10.0 / xscale, 10.0 / yscale); + cairo_line_to (cr, 40.0 / xscale, 10.0 / yscale); + cairo_line_to (cr, 10.0 / xscale, 30.0 / yscale); + cairo_stroke (cr); + cairo_restore (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (miter_precision, + "test how cairo deals with small miters" + "\ncurrent code draws inappropriate bevels at times", + "stoke, stress", /* keywords */ + NULL, /* requirements */ + 120, 100, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/move-to-show-surface.c b/local/recipes/libs/cairo/source/test/move-to-show-surface.c new file mode 100644 index 0000000000..a52b468274 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/move-to-show-surface.c @@ -0,0 +1,78 @@ +/* + * Copyright © 2004 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +/* Bug history + * + * 2004-10-25 Carl Worth + * + * It looks like cairo_show_surface has no effect if it follows a + * call to cairo_move_to to any coordinate other than 0,0. A little + * bit of poking around suggests this isn't a regression, (at least + * not since the last pixman snapshot). + * + * 2005-04-02 Carl Worth + * + * Status: RESOLVED + * + * Inside cairo_show_surface the current point was being used as + * both source and destination offsets. After fixing that to use 0,0 + * as the source offset and the current point as the destination + * offset, the bug seems to be gone. + * + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + uint32_t colors[4] = { + 0xffffffff, 0xffff0000, + 0xff00ff00, 0xff0000ff + }; + int i; + + for (i=0; i < 4; i++) { + surface = cairo_image_surface_create_for_data ((unsigned char *) &colors[i], + CAIRO_FORMAT_RGB24, + 1, 1, 4); + cairo_set_source_surface (cr, surface, + i % 2, i / 2); + cairo_paint (cr); + + cairo_surface_finish (surface); /* colors will go out of scope */ + cairo_surface_destroy (surface); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (move_to_show_surface, + "Tests calls to cairo_show_surface after cairo_move_to", + "transform", /* keywords */ + NULL, /* requirements */ + 2, 2, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/multi-page.c b/local/recipes/libs/cairo/source/test/multi-page.c new file mode 100644 index 0000000000..a3102dba39 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/multi-page.c @@ -0,0 +1,198 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#include + +#include + +#if CAIRO_HAS_PS_SURFACE +#include +#endif + +#if CAIRO_HAS_PDF_SURFACE +#include +#endif + +/* The PostScript and PDF backends are now integrated into the main + * test suite, so we are getting good verification of most things + * there. + * + * One thing that isn't supported there yet is multi-page output. So, + * for now we have this one-off test. There's no automatic + * verififcation here yet, but you can manually view the output to + * make sure it looks happy. + */ + +#define WIDTH_IN_INCHES 3 +#define HEIGHT_IN_INCHES 3 +#define WIDTH_IN_POINTS (WIDTH_IN_INCHES * 72.0) +#define HEIGHT_IN_POINTS (HEIGHT_IN_INCHES * 72.0) +#define BASENAME "multi-page.out" + +static void +draw_smiley (cairo_t *cr, double width, double height, double smile_ratio) +{ +#define STROKE_WIDTH .04 + double size; + + double theta = M_PI / 4 * smile_ratio; + double dx = sqrt (0.005) * cos (theta); + double dy = sqrt (0.005) * sin (theta); + + cairo_save (cr); + + if (width > height) + size = height; + else + size = width; + + cairo_translate (cr, (width - size) / 2.0, (height - size) / 2.0); + cairo_scale (cr, size, size); + + /* Fill face */ + cairo_arc (cr, 0.5, 0.5, 0.5 - STROKE_WIDTH, 0, 2 * M_PI); + cairo_set_source_rgb (cr, 1, 1, 0); + cairo_fill_preserve (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + + /* Stroke face */ + cairo_set_line_width (cr, STROKE_WIDTH / 2.0); + cairo_stroke (cr); + + /* Eyes */ + cairo_set_line_width (cr, STROKE_WIDTH); + cairo_arc (cr, 0.3, 0.4, STROKE_WIDTH, 0, 2 * M_PI); + cairo_fill (cr); + cairo_arc (cr, 0.7, 0.4, STROKE_WIDTH, 0, 2 * M_PI); + cairo_fill (cr); + + /* Mouth */ + cairo_move_to (cr, + 0.35 - dx, 0.75 - dy); + cairo_curve_to (cr, + 0.35 + dx, 0.75 + dy, + 0.65 - dx, 0.75 + dy, + 0.65 + dx, 0.75 - dy); + cairo_stroke (cr); + + cairo_restore (cr); +} + +static void +draw_some_pages (cairo_surface_t *surface) +{ + cairo_t *cr; + int i; + + cr = cairo_create (surface); + +#define NUM_FRAMES 5 + for (i=0; i < NUM_FRAMES; i++) { + draw_smiley (cr, WIDTH_IN_POINTS, HEIGHT_IN_POINTS, + (double) i / (NUM_FRAMES - 1)); + + /* Duplicate the last frame onto another page. (This is just a + * way to sneak cairo_copy_page into the test). + */ + if (i == (NUM_FRAMES - 1)) + cairo_copy_page (cr); + + cairo_show_page (cr); + } + + cairo_destroy (cr); +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_surface_t *surface; + cairo_status_t status; + char *filename; + cairo_test_status_t result = CAIRO_TEST_UNTESTED; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + +#if CAIRO_HAS_PS_SURFACE + if (cairo_test_is_target_enabled (ctx, "ps2") || + cairo_test_is_target_enabled (ctx, "ps3")) + { + if (result == CAIRO_TEST_UNTESTED) + result = CAIRO_TEST_SUCCESS; + + xasprintf (&filename, "%s/%s", path, BASENAME ".ps"); + surface = cairo_ps_surface_create (filename, + WIDTH_IN_POINTS, HEIGHT_IN_POINTS); + status = cairo_surface_status (surface); + if (status) { + cairo_test_log (ctx, "Failed to create ps surface for file %s: %s\n", + filename, cairo_status_to_string (status)); + result = CAIRO_TEST_FAILURE; + } + + draw_some_pages (surface); + + cairo_surface_destroy (surface); + + printf ("multi-page: Please check %s to ensure it looks happy.\n", filename); + free (filename); + } +#endif + +#if CAIRO_HAS_PDF_SURFACE + if (cairo_test_is_target_enabled (ctx, "pdf")) { + if (result == CAIRO_TEST_UNTESTED) + result = CAIRO_TEST_SUCCESS; + + xasprintf (&filename, "%s/%s", path, BASENAME ".pdf"); + surface = cairo_pdf_surface_create (filename, + WIDTH_IN_POINTS, HEIGHT_IN_POINTS); + status = cairo_surface_status (surface); + if (status) { + cairo_test_log (ctx, "Failed to create pdf surface for file %s: %s\n", + filename, cairo_status_to_string (status)); + result = CAIRO_TEST_FAILURE; + } + + draw_some_pages (surface); + + cairo_surface_destroy (surface); + + printf ("multi-page: Please check %s to ensure it looks happy.\n", filename); + free (filename); + } +#endif + + return result; +} + +CAIRO_TEST (multi_page, + "Check the paginated surfaces handle multiple pages.", + "paginated", /* keywords */ + "target=vector", /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/negative-stride-image.c b/local/recipes/libs/cairo/source/test/negative-stride-image.c new file mode 100644 index 0000000000..dfc8d644dd --- /dev/null +++ b/local/recipes/libs/cairo/source/test/negative-stride-image.c @@ -0,0 +1,71 @@ +/* + * Copyright 2012 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +static const char *png_filename = "romedalen.png"; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_format_t format = CAIRO_FORMAT_ARGB32; + cairo_t *cr_inv; + cairo_surface_t *png, *inv; + uint8_t *data; + int stride; + + png = cairo_test_create_surface_from_png (ctx, png_filename); + + stride = cairo_format_stride_for_width (format, width); + data = xcalloc (stride, height); + inv = cairo_image_surface_create_for_data (data + stride * (height - 1), + format, width, height, -stride); + + cr_inv = cairo_create (inv); + cairo_set_source_surface (cr_inv, png, 0, 0); + cairo_paint (cr_inv); + cairo_destroy (cr_inv); + + cairo_set_source_surface (cr, inv, 0, 0); + cairo_paint (cr); + + cairo_surface_destroy (png); + + cairo_surface_finish (inv); + cairo_surface_destroy (inv); + + free (data); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (negative_stride_image, + "Test that images with a negative stride are handled correctly.", + "stride, image", /* keywords */ + NULL, /* requirements */ + 256, 192, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/new-sub-path.c b/local/recipes/libs/cairo/source/test/new-sub-path.c new file mode 100644 index 0000000000..f8f6bbe8d4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/new-sub-path.c @@ -0,0 +1,74 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define SIZE 10 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); /* blue */ + + /* Test cairo_new_sub_path followed by several different + * path-modification functions in turn... + */ + + /* ... cairo_move_to */ + cairo_new_sub_path (cr); + cairo_move_to (cr, SIZE, SIZE); + cairo_line_to (cr, SIZE, 2 * SIZE); + + /* ... cairo_line_to */ + cairo_new_sub_path (cr); + cairo_line_to (cr, 2 * SIZE, 1.5 * SIZE); + cairo_line_to (cr, 3 * SIZE, 1.5 * SIZE); + + /* ... cairo_curve_to */ + cairo_new_sub_path (cr); + cairo_curve_to (cr, + 4.0 * SIZE, 1.5 * SIZE, + 4.5 * SIZE, 1.0 * SIZE, + 5.0 * SIZE, 1.5 * SIZE); + + /* ... cairo_arc */ + cairo_new_sub_path (cr); + cairo_arc (cr, + 6.5 * SIZE, 1.5 * SIZE, + 0.5 * SIZE, + 0.0, 2.0 * M_PI); + + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (new_sub_path, + "Test the cairo_new_sub_path call", + "path", /* keywords */ + NULL, /* requirements */ + 8 * SIZE, + 3 * SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/nil-surface.c b/local/recipes/libs/cairo/source/test/nil-surface.c new file mode 100644 index 0000000000..30a1f97e59 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/nil-surface.c @@ -0,0 +1,170 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" +#include + +/* Test to verify fixes for the following similar bugs: + * + * https://bugs.freedesktop.org/show_bug.cgi?id=4088 + * https://bugs.freedesktop.org/show_bug.cgi?id=3915 + * https://bugs.freedesktop.org/show_bug.cgi?id=9906 + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *surface; + cairo_pattern_t *pattern; + cairo_t *cr2; + + /* + * 1. Test file-not-found from surface->pattern->cairo_t + */ + + /* Make a custom context to not interfere with the one passed in. */ + cr2 = cairo_create (cairo_get_target (cr)); + + /* First, let's make a nil surface. */ + surface = cairo_image_surface_create_from_png ("___THIS_FILE_DOES_NOT_EXIST___"); + + /* Let the error propagate into a nil pattern. */ + pattern = cairo_pattern_create_for_surface (surface); + + /* Then let it propagate into the cairo_t. */ + cairo_set_source (cr2, pattern); + cairo_paint (cr2); + + cairo_pattern_destroy (pattern); + cairo_surface_destroy (surface); + + /* Check that the error made it all that way. */ + if (cairo_status (cr2) != CAIRO_STATUS_FILE_NOT_FOUND) { + cairo_test_log (ctx, "Error: Received status of \"%s\" rather than expected \"%s\"\n", + cairo_status_to_string (cairo_status (cr2)), + cairo_status_to_string (CAIRO_STATUS_FILE_NOT_FOUND)); + cairo_destroy (cr2); + return CAIRO_TEST_FAILURE; + } + + cairo_destroy (cr2); + + /* + * 2. Test NULL pointer pattern->cairo_t + */ + cr2 = cairo_create (cairo_get_target (cr)); + + /* First, trigger the NULL pointer status. */ + pattern = cairo_pattern_create_for_surface (NULL); + + /* Then let it propagate into the cairo_t. */ + cairo_set_source (cr2, pattern); + cairo_paint (cr2); + + cairo_pattern_destroy (pattern); + + /* Check that the error made it all that way. */ + if (cairo_status (cr2) != CAIRO_STATUS_NULL_POINTER) { + cairo_test_log (ctx, "Error: Received status of \"%s\" rather than expected \"%s\"\n", + cairo_status_to_string (cairo_status (cr2)), + cairo_status_to_string (CAIRO_STATUS_NULL_POINTER)); + cairo_destroy (cr2); + return CAIRO_TEST_FAILURE; + } + + cairo_destroy (cr2); + + /* + * 3. Test that cairo_surface_finish can accept NULL or a nil + * surface without crashing. + */ + + cairo_surface_finish (NULL); + + surface = cairo_image_surface_create_from_png ("___THIS_FILE_DOES_NOT_EXIST___"); + cairo_surface_finish (surface); + cairo_surface_destroy (surface); + + /* + * 4. OK, we're straying from the original name, but it's still a + * similar kind of testing of error paths. Here we're making sure + * we can still call a cairo_get_* function after triggering an + * INVALID_RESTORE error. + */ + cr2 = cairo_create (cairo_get_target (cr)); + + /* Trigger invalid restore. */ + cairo_restore (cr2); + if (cairo_status (cr2) != CAIRO_STATUS_INVALID_RESTORE) { + cairo_test_log (ctx, "Error: Received status of \"%s\" rather than expected \"%s\"\n", + cairo_status_to_string (cairo_status (cr2)), + cairo_status_to_string (CAIRO_STATUS_INVALID_RESTORE)); + cairo_destroy (cr2); + return CAIRO_TEST_FAILURE; + } + + /* Test that we can still call cairo_get_fill_rule without crashing. */ + cairo_get_fill_rule (cr2); + + cairo_destroy (cr2); + + /* + * 5. Create a cairo_t for the NULL surface. + */ + cr2 = cairo_create (NULL); + + if (cairo_status (cr2) != CAIRO_STATUS_NULL_POINTER) { + cairo_test_log (ctx, "Error: Received status of \"%s\" rather than expected \"%s\"\n", + cairo_status_to_string (cairo_status (cr2)), + cairo_status_to_string (CAIRO_STATUS_NULL_POINTER)); + cairo_destroy (cr2); + return CAIRO_TEST_FAILURE; + } + + /* Test that get_target returns something valid */ + if (cairo_get_target (cr2) == NULL) { + cairo_test_log (ctx, "Error: cairo_get_target() returned NULL\n"); + cairo_destroy (cr2); + return CAIRO_TEST_FAILURE; + } + + /* Test that push_group doesn't crash */ + cairo_push_group (cr2); + cairo_stroke (cr2); + pattern = cairo_pop_group (cr2); + cairo_pattern_destroy (pattern); + + cairo_destroy (cr2); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (nil_surface, + "Test that nil surfaces do not make cairo crash.", + "api", /* keywords */ + NULL, /* requirements */ + 1, 1, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/operator-alpha-alpha.c b/local/recipes/libs/cairo/source/test/operator-alpha-alpha.c new file mode 100644 index 0000000000..2cef8585c5 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/operator-alpha-alpha.c @@ -0,0 +1,166 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright 2002 University of Southern California + * Copyright 2005 Red Hat, Inc. + * Copyright 2007 Emmanuel Pacaud + * Copyright 2008 Benjamin Otte + * Copyright 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Owen Taylor + * Kristian Høgsberg + * Emmanuel Pacaud + * Chris Wilson + * Andrea Canciani + */ + +#include "cairo-test.h" + +#define STEPS 16 +#define START_OPERATOR CAIRO_OPERATOR_CLEAR +#define STOP_OPERATOR CAIRO_OPERATOR_HSL_LUMINOSITY + +#define SIZE 3 +#define COUNT 6 +#define FULL_WIDTH ((STEPS + 1) * COUNT - 1) +#define FULL_HEIGHT ((COUNT + STOP_OPERATOR - START_OPERATOR) / COUNT) * (STEPS + 1) + +static void +create_patterns (cairo_t *bg, cairo_t *fg) +{ + int x; + + for (x = 0; x < STEPS; x++) { + double i = (double) x / (STEPS - 1); + cairo_set_source_rgba (bg, 0, 0, 0, i); + cairo_rectangle (bg, x, 0, 1, STEPS); + cairo_fill (bg); + + cairo_set_source_rgba (fg, 0, 0, 0, i); + cairo_rectangle (fg, 0, x, STEPS, 1); + cairo_fill (fg); + } +} + +/* expects a STEP*STEP pixel rectangle */ +static void +do_composite (cairo_t *cr, cairo_operator_t op, cairo_surface_t *bg, cairo_surface_t *fg) +{ + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_surface (cr, bg, 0, 0); + cairo_paint (cr); + + cairo_set_operator (cr, op); + cairo_set_source_surface (cr, fg, 0, 0); + cairo_paint (cr); +} + +static void +subdraw (cairo_t *cr, int width, int height) +{ + size_t i = 0; + cairo_operator_t op; + cairo_t *bgcr, *fgcr; + cairo_surface_t *bg, *fg; + + bg = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_ALPHA, SIZE * STEPS, SIZE * STEPS); + fg = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_ALPHA, SIZE * STEPS, SIZE * STEPS); + bgcr = cairo_create (bg); + fgcr = cairo_create (fg); + cairo_scale (bgcr, SIZE, SIZE); + cairo_scale (fgcr, SIZE, SIZE); + create_patterns (bgcr, fgcr); + cairo_destroy (bgcr); + cairo_destroy (fgcr); + + for (op = START_OPERATOR; op <= STOP_OPERATOR; op++, i++) { + cairo_save (cr); + cairo_translate (cr, + SIZE * (STEPS + 1) * (i % COUNT), + SIZE * (STEPS + 1) * (i / COUNT)); + cairo_rectangle (cr, 0, 0, SIZE * (STEPS + 1), SIZE * (STEPS+1)); + cairo_clip (cr); + do_composite (cr, op, bg, fg); + cairo_restore (cr); + } + + cairo_surface_destroy (fg); + cairo_surface_destroy (bg); +} + + +static cairo_surface_t * +create_source (cairo_surface_t *target, int width, int height) +{ + cairo_surface_t *similar; + cairo_t *cr; + + similar = cairo_surface_create_similar (target, + CAIRO_CONTENT_ALPHA, + width, height); + cr = cairo_create (similar); + cairo_surface_destroy (similar); + + subdraw (cr, width, height); + + similar = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return similar; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *source; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + source = create_source (cairo_get_target (cr), width, height); + cairo_set_source_surface (cr, source, 0, 0); + cairo_surface_destroy (source); + + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (operator_alpha_alpha, + "Tests result of compositing pure-alpha surfaces" + "\nCompositing of pure-alpha sources is inconsistent across backends.", + "alpha, similar, operator", /* keywords */ + NULL, /* requirements */ + FULL_WIDTH * SIZE, FULL_HEIGHT * SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/operator-alpha.c b/local/recipes/libs/cairo/source/test/operator-alpha.c new file mode 100644 index 0000000000..1ce4ecdf26 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/operator-alpha.c @@ -0,0 +1,65 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define N_OPERATORS (CAIRO_OPERATOR_SATURATE + 1) +#define SIZE 10 +#define PAD 3 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + unsigned int n; + + cairo_translate (cr, PAD, PAD); + + for (n = 0; n < N_OPERATORS; n++) { + cairo_reset_clip (cr); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_rectangle (cr, 0, 0, SIZE-PAD, SIZE-PAD); + cairo_fill (cr); + + cairo_set_source_rgba (cr, 0, 0, 1, .33); + cairo_set_operator (cr, n); + cairo_rectangle (cr, PAD, PAD, SIZE-PAD, SIZE-PAD); + cairo_fill (cr); + + cairo_translate (cr, SIZE+PAD, 0); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (operator_alpha, + "Tests using set_operator() with an non-opaque source", + "operator, alpha", /* keywords */ + NULL, /* requirements */ + (SIZE+PAD) * N_OPERATORS + PAD, SIZE + 2*PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/operator-clear.c b/local/recipes/libs/cairo/source/test/operator-clear.c new file mode 100644 index 0000000000..72a32c2194 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/operator-clear.c @@ -0,0 +1,196 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Kristian Høgsberg + * Owen Taylor + */ + +#include "cairo-test.h" +#include +#include + +#define WIDTH 16 +#define HEIGHT 16 +#define PAD 2 + +static void +set_solid_pattern (cairo_t *cr, int x, int y) +{ + cairo_set_source_rgb (cr, 1.0, 0, 0.0); +} + +static void +set_gradient_pattern (cairo_t *cr, int x, int y) +{ + cairo_pattern_t *pattern; + + pattern = cairo_pattern_create_linear (x, y, x + WIDTH, y + HEIGHT); + cairo_pattern_add_color_stop_rgba (pattern, 0.2, 1, 0, 0, 1); + cairo_pattern_add_color_stop_rgba (pattern, 0.8, 1, 0, 0, 0.0); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); +} + +static void +draw_mask (cairo_t *cr, int x, int y) +{ + cairo_surface_t *mask_surface; + cairo_t *cr2; + + double width = (int)(0.9 * WIDTH); + double height = (int)(0.9 * HEIGHT); + x += 0.05 * WIDTH; + y += 0.05 * HEIGHT; + + mask_surface = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, + width, height); + cr2 = cairo_create (mask_surface); + cairo_surface_destroy (mask_surface); + + cairo_set_source_rgb (cr2, 1, 1, 1); /* white */ + + cairo_arc (cr2, 0.5 * width, 0.5 * height, 0.45 * height, 0, 2 * M_PI); + cairo_fill (cr2); + + cairo_mask_surface (cr, cairo_get_target (cr2), x, y); + cairo_destroy (cr2); +} + +static void +draw_glyphs (cairo_t *cr, int x, int y) +{ + cairo_text_extents_t extents; + + cairo_set_font_size (cr, 0.8 * HEIGHT); + + cairo_text_extents (cr, "FG", &extents); + cairo_move_to (cr, + x + floor ((WIDTH - extents.width) / 2 + 0.5) - extents.x_bearing, + y + floor ((HEIGHT - extents.height) / 2 + 0.5) - extents.y_bearing); + cairo_show_text (cr, "FG"); +} + +static void +draw_polygon (cairo_t *cr, int x, int y) +{ + double width = (int)(0.9 * WIDTH); + double height = (int)(0.9 * HEIGHT); + x += 0.05 * WIDTH; + y += 0.05 * HEIGHT; + + cairo_new_path (cr); + cairo_move_to (cr, x, y); + cairo_line_to (cr, x, y + height); + cairo_line_to (cr, x + width / 2, y + 3 * height / 4); + cairo_line_to (cr, x + width, y + height); + cairo_line_to (cr, x + width, y); + cairo_line_to (cr, x + width / 2, y + height / 4); + cairo_close_path (cr); + cairo_fill (cr); +} + +static void +draw_rects (cairo_t *cr, int x, int y) +{ + double block_width = (int)(0.33 * WIDTH + 0.5); + double block_height = (int)(0.33 * HEIGHT + 0.5); + int i, j; + + for (i = 0; i < 3; i++) + for (j = 0; j < 3; j++) + if ((i + j) % 2 == 0) + cairo_rectangle (cr, + x + block_width * i, y + block_height * j, + block_width, block_height); + + cairo_fill (cr); +} + +static void (* const pattern_funcs[])(cairo_t *cr, int x, int y) = { + set_solid_pattern, + set_gradient_pattern, +}; + +static void (* const draw_funcs[])(cairo_t *cr, int x, int y) = { + draw_mask, + draw_glyphs, + draw_polygon, + draw_rects +}; + +#define IMAGE_WIDTH (ARRAY_LENGTH (pattern_funcs) * (WIDTH + PAD) + PAD) +#define IMAGE_HEIGHT (ARRAY_LENGTH (draw_funcs) * (HEIGHT + PAD) + PAD) + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + size_t i, j, x, y; + cairo_pattern_t *pattern; + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + for (j = 0; j < ARRAY_LENGTH (draw_funcs); j++) { + for (i = 0; i < ARRAY_LENGTH (pattern_funcs); i++) { + x = i * (WIDTH + PAD) + PAD; + y = j * (HEIGHT + PAD) + PAD; + + cairo_save (cr); + + pattern = cairo_pattern_create_linear (x + WIDTH, y, + x, y + HEIGHT); + cairo_pattern_add_color_stop_rgba (pattern, 0.2, + 0.0, 0.0, 1.0, 1.0); /* Solid blue */ + cairo_pattern_add_color_stop_rgba (pattern, 0.8, + 0.0, 0.0, 1.0, 0.0); /* Transparent blue */ + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + cairo_rectangle (cr, x, y, WIDTH, HEIGHT); + cairo_fill_preserve (cr); + cairo_clip (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR); + pattern_funcs[i] (cr, x, y); + draw_funcs[j] (cr, x, y); + if (cairo_status (cr)) + cairo_test_log (ctx, "%d %d HERE!\n", (int)i, (int)j); + + cairo_restore (cr); + } + } + + if (cairo_status (cr) != CAIRO_STATUS_SUCCESS) + cairo_test_log (ctx, "%d %d .HERE!\n", (int)i, (int)j); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (operator_clear, + "Test of CAIRO_OPERATOR_CLEAR", + "operator", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/operator-source.c b/local/recipes/libs/cairo/source/test/operator-source.c new file mode 100644 index 0000000000..9330a65d1e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/operator-source.c @@ -0,0 +1,250 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Kristian Høgsberg + * Owen Taylor + * Uli Schlachter + */ + +#include "cairo-test.h" +#include +#include + +#define WIDTH 16 +#define HEIGHT 16 +#define PAD 2 + +static void +set_solid_pattern (cairo_t *cr, int x, int y) +{ + cairo_set_source_rgb (cr, 1.0, 0, 0.0); +} + +static void +set_translucent_pattern (cairo_t *cr, int x, int y) +{ + cairo_set_source_rgba (cr, 1, 0, 0, 0.5); +} + +static void +set_gradient_pattern (cairo_t *cr, int x, int y) +{ + cairo_pattern_t *pattern; + + pattern = cairo_pattern_create_linear (x, y, x + WIDTH, y + HEIGHT); + cairo_pattern_add_color_stop_rgba (pattern, 0.2, 1, 0, 0, 1); + cairo_pattern_add_color_stop_rgba (pattern, 0.8, 1, 0, 0, 0.0); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); +} + +static void +set_surface_pattern (cairo_t *cr, int x, int y) +{ + cairo_surface_t *source_surface; + cairo_t *cr2; + + double width = (int)(0.6 * WIDTH); + double height = (int)(0.6 * HEIGHT); + x += 0.2 * WIDTH; + y += 0.2 * HEIGHT; + + source_surface = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + width, height); + cr2 = cairo_create (source_surface); + cairo_surface_destroy (source_surface); + + cairo_set_source_rgb (cr2, 1, 0, 0); /* red */ + cairo_paint (cr2); + + cairo_set_source_rgb (cr2, 1, 1, 1); /* white */ + + cairo_arc (cr2, 0.5 * width, 0.5 * height, 0.5 * height, 0, 2 * M_PI); + cairo_fill (cr2); + + cairo_set_source_surface (cr, cairo_get_target (cr2), x, y); + cairo_destroy (cr2); +} + +static void +draw_mask (cairo_t *cr, int x, int y) +{ + cairo_surface_t *mask_surface; + cairo_t *cr2; + + double width = (int)(0.9 * WIDTH); + double height = (int)(0.9 * HEIGHT); + x += 0.05 * WIDTH; + y += 0.05 * HEIGHT; + + mask_surface = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, + width, height); + cr2 = cairo_create (mask_surface); + cairo_surface_destroy (mask_surface); + + cairo_set_source_rgb (cr2, 1, 1, 1); /* white */ + + cairo_arc (cr2, 0.5 * width, 0.5 * height, 0.45 * height, 0, 2 * M_PI); + cairo_fill (cr2); + + cairo_mask_surface (cr, cairo_get_target (cr2), x, y); + cairo_destroy (cr2); +} + +static void +draw_glyphs (cairo_t *cr, int x, int y) +{ + cairo_text_extents_t extents; + + cairo_set_font_size (cr, 0.8 * HEIGHT); + + cairo_text_extents (cr, "FG", &extents); + cairo_move_to (cr, + x + floor ((WIDTH - extents.width) / 2 + 0.5) - extents.x_bearing, + y + floor ((HEIGHT - extents.height) / 2 + 0.5) - extents.y_bearing); + cairo_show_text (cr, "FG"); +} + +static void +draw_polygon (cairo_t *cr, int x, int y) +{ + double width = (int)(0.9 * WIDTH); + double height = (int)(0.9 * HEIGHT); + x += 0.05 * WIDTH; + y += 0.05 * HEIGHT; + + cairo_new_path (cr); + cairo_move_to (cr, x, y); + cairo_line_to (cr, x, y + height); + cairo_line_to (cr, x + width / 2, y + 3 * height / 4); + cairo_line_to (cr, x + width, y + height); + cairo_line_to (cr, x + width, y); + cairo_line_to (cr, x + width / 2, y + height / 4); + cairo_close_path (cr); + cairo_fill (cr); +} + +static void +draw_rects (cairo_t *cr, int x, int y, double offset) +{ + double block_width = (int)(0.33 * WIDTH + 0.5) - offset/3; + double block_height = (int)(0.33 * HEIGHT + 0.5) - offset/3; + int i, j; + + x += offset/2; + y += offset/2; + + for (i = 0; i < 3; i++) + for (j = 0; j < 3; j++) + if ((i + j) % 2 == 0) + cairo_rectangle (cr, + x + block_width * i, y + block_height * j, + block_width, block_height); + + cairo_fill (cr); +} + +static void +draw_aligned_rects (cairo_t *cr, int x, int y) +{ + draw_rects (cr, x, y, 0); +} + +static void +draw_unaligned_rects (cairo_t *cr, int x, int y) +{ + draw_rects (cr, x, y, 2.1); +} + +static void (* const pattern_funcs[])(cairo_t *cr, int x, int y) = { + set_solid_pattern, + set_translucent_pattern, + set_gradient_pattern, + set_surface_pattern, +}; + +static void (* const draw_funcs[])(cairo_t *cr, int x, int y) = { + draw_mask, + draw_glyphs, + draw_polygon, + draw_aligned_rects, + draw_unaligned_rects +}; + +#define IMAGE_WIDTH (ARRAY_LENGTH (pattern_funcs) * (WIDTH + PAD) + PAD) +#define IMAGE_HEIGHT (ARRAY_LENGTH (draw_funcs) * (HEIGHT + PAD) + PAD) + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + size_t i, j, x, y; + cairo_pattern_t *pattern; + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + for (j = 0; j < ARRAY_LENGTH (draw_funcs); j++) { + for (i = 0; i < ARRAY_LENGTH (pattern_funcs); i++) { + x = i * (WIDTH + PAD) + PAD; + y = j * (HEIGHT + PAD) + PAD; + + cairo_save (cr); + + pattern = cairo_pattern_create_linear (x + WIDTH, y, + x, y + HEIGHT); + cairo_pattern_add_color_stop_rgba (pattern, 0.2, + 0.0, 0.0, 1.0, 1.0); /* Solid blue */ + cairo_pattern_add_color_stop_rgba (pattern, 0.8, + 0.0, 0.0, 1.0, 0.0); /* Transparent blue */ + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + cairo_rectangle (cr, x, y, WIDTH, HEIGHT); + cairo_fill_preserve (cr); + cairo_clip (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + pattern_funcs[i] (cr, x, y); + draw_funcs[j] (cr, x, y); + if (cairo_status (cr)) + cairo_test_log (ctx, "%d %d HERE!\n", (int)i, (int)j); + + cairo_restore (cr); + } + } + + if (cairo_status (cr) != CAIRO_STATUS_SUCCESS) + cairo_test_log (ctx, "%d %d .HERE!\n", (int)i, (int)j); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (operator_source, + "Test of CAIRO_OPERATOR_SOURCE", + "operator", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/operator-www.c b/local/recipes/libs/cairo/source/test/operator-www.c new file mode 100644 index 0000000000..4d804fced0 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/operator-www.c @@ -0,0 +1,179 @@ +/* + * Copyright © 2011 Nis Martensen + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "cairo-test.h" + +#define OPERATORS_COUNT 29 +#define WIDTH 160 +#define HEIGHT 120 + +static void +example (cairo_t *cr, const char *name) +{ + cairo_save (cr); + cairo_push_group_with_content (cr, cairo_surface_get_content (cairo_get_target (cr))); + + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + + cairo_rectangle (cr, 0, 0, 120, 90); + cairo_set_source_rgba (cr, 0.7, 0, 0, 0.8); + cairo_fill (cr); + + if (strcmp (name, "clear") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR); + + else if (strcmp (name, "source") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + else if (strcmp (name, "over") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + else if (strcmp (name, "in") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_IN); + else if (strcmp (name, "out") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_OUT); + else if (strcmp (name, "atop") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_ATOP); + + else if (strcmp (name, "dest") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_DEST); + else if (strcmp (name, "dest_over") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_DEST_OVER); + else if (strcmp (name, "dest_in") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_DEST_IN); + else if (strcmp (name, "dest_out") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_DEST_OUT); + else if (strcmp (name, "dest_atop") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_DEST_ATOP); + + else if (strcmp (name, "xor") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_XOR); + else if (strcmp (name, "add") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + else if (strcmp (name, "saturate") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_SATURATE); + else if (strcmp (name, "multiply") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_MULTIPLY); + else if (strcmp (name, "screen") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_SCREEN); + else if (strcmp (name, "overlay") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_OVERLAY); + else if (strcmp (name, "darken") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_DARKEN); + else if (strcmp (name, "lighten") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_LIGHTEN); + else if (strcmp (name, "color_dodge") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_COLOR_DODGE); + else if (strcmp (name, "color_burn") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_COLOR_BURN); + else if (strcmp (name, "hard_light") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_HARD_LIGHT); + else if (strcmp (name, "soft_light") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_SOFT_LIGHT); + else if (strcmp (name, "difference") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_DIFFERENCE); + else if (strcmp (name, "exclusion") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_EXCLUSION); + else if (strcmp (name, "hsl_hue") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_HSL_HUE); + else if (strcmp (name, "hsl_saturation") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_HSL_SATURATION); + else if (strcmp (name, "hsl_color") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_HSL_COLOR); + else if (strcmp (name, "hsl_luminosity") == 0) + cairo_set_operator (cr, CAIRO_OPERATOR_HSL_LUMINOSITY); + + cairo_rectangle (cr, 40, 30, 120, 90); + cairo_set_source_rgba (cr, 0, 0, 0.9, 0.4); + cairo_fill (cr); + + cairo_pattern_t *pattern = cairo_pop_group (cr); + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + // Make problems with CAIRO_CONTENT_COLOR visible + if (cairo_surface_get_content (cairo_get_target (cr)) == CAIRO_CONTENT_COLOR) { + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + } + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + cairo_paint (cr); + cairo_restore (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, 17); + cairo_move_to (cr, WIDTH + 20, 70); + cairo_set_source_rgb (cr, 1, 1, 0); + cairo_show_text (cr, name); + + cairo_translate (cr, 0, HEIGHT); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + example (cr, "clear"); + + example (cr, "source"); + example (cr, "over"); + example (cr, "in"); + example (cr, "out"); + example (cr, "atop"); + + example (cr, "dest"); + example (cr, "dest_over"); + example (cr, "dest_in"); + example (cr, "dest_out"); + example (cr, "dest_atop"); + + example (cr, "xor"); + example (cr, "add"); + example (cr, "saturate"); + + example (cr, "multiply"); + example (cr, "screen"); + example (cr, "overlay"); + example (cr, "darken"); + example (cr, "lighten"); + example (cr, "color_dodge"); + example (cr, "color_burn"); + example (cr, "hard_light"); + example (cr, "soft_light"); + example (cr, "difference"); + example (cr, "exclusion"); + example (cr, "hsl_hue"); + example (cr, "hsl_saturation"); + example (cr, "hsl_color"); + example (cr, "hsl_luminosity"); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (operator_www, + "Operator samples from https://cairographics.org/operators/", + "operator", /* keywords */ + NULL, /* requirements */ + WIDTH * 2, HEIGHT * OPERATORS_COUNT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/operator.c b/local/recipes/libs/cairo/source/test/operator.c new file mode 100644 index 0000000000..666fcafd6a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/operator.c @@ -0,0 +1,65 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define N_OPERATORS (CAIRO_OPERATOR_SATURATE + 1) +#define SIZE 10 +#define PAD 3 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + unsigned int n; + + cairo_translate (cr, PAD, PAD); + + for (n = 0; n < N_OPERATORS; n++) { + cairo_reset_clip (cr); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_rectangle (cr, 0, 0, SIZE-PAD, SIZE-PAD); + cairo_fill (cr); + + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_set_operator (cr, n); + cairo_rectangle (cr, PAD, PAD, SIZE-PAD, SIZE-PAD); + cairo_fill (cr); + + cairo_translate (cr, SIZE+PAD, 0); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (operator, + "Tests using set_operator()", + "operator", /* keywords */ + NULL, /* requirements */ + (SIZE+PAD) * N_OPERATORS + PAD, SIZE + 2*PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/outline-tolerance.c b/local/recipes/libs/cairo/source/test/outline-tolerance.c new file mode 100644 index 0000000000..6453f5c965 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/outline-tolerance.c @@ -0,0 +1,52 @@ +/* + * Copyright © 2012 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* An assertion failure found by Rico Tzschichholz */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_paint (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_set_line_width (cr, 200); + cairo_set_miter_limit (cr, 1.5); + cairo_rectangle (cr, 100, 25, 1000, 0); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (outline_tolerance, + "Rectangle drawn incorrectly when it has zero height and miter limit greater than 1.414", + "stroke", /* keywords */ + NULL, /* requirements */ + 100, 50, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/over-above-source.c b/local/recipes/libs/cairo/source/test/over-above-source.c new file mode 100644 index 0000000000..7191c8da33 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/over-above-source.c @@ -0,0 +1,72 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define SIZE 40 +#define PAD 2 +#define WIDTH (PAD + SIZE + PAD) +#define HEIGHT WIDTH + +/* This test is designed to explore the interactions of "native" and + * "fallback" objects. For the ps surface, OVER with non-1.0 opacity + * will be a fallback while SOURCE will be native. For the pdf + * surface, it's the reverse where OVER is native while SOURCE is a + * fallback. */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, PAD, PAD); + + /* A red triangle with SOURCE */ + cairo_move_to (cr, SIZE / 2, SIZE / 2); + cairo_rel_line_to (cr, SIZE / 2, 0); + cairo_rel_line_to (cr, -SIZE / 2, SIZE / 2); + cairo_close_path (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgba (cr, 1., 0., 0., 0.5); /* 50% red */ + + cairo_fill (cr); + + /* A green circle with OVER */ + cairo_arc (cr, SIZE / 2, SIZE / 2, SIZE / 4, 0., 2. * M_PI); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source_rgba (cr, 0., 1., 0., 0.5); /* 50% green */ + + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (over_above_source, + "A simple test drawing a circle with OVER after a triangle drawn with SOURCE", + "operator", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/over-around-source.c b/local/recipes/libs/cairo/source/test/over-around-source.c new file mode 100644 index 0000000000..531eda8047 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/over-around-source.c @@ -0,0 +1,83 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define SIZE 40 +#define PAD 2 +#define WIDTH (PAD + SIZE + PAD) +#define HEIGHT WIDTH + +/* This test is designed to explore the interactions of "native" and + * "fallback" objects. For the ps surface, OVER with non-1.0 opacity + * will be a fallback while SOURCE will be native. For the pdf + * surface, it's the reverse where OVER is native while SOURCE is a + * fallback. */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, PAD, PAD); + + /* A green triangle with OVER */ + cairo_move_to (cr, SIZE / 5, SIZE / 5); + cairo_rel_line_to (cr, SIZE / 2, 0); + cairo_rel_line_to (cr, -SIZE / 2, SIZE / 2); + cairo_close_path (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source_rgba (cr, 0., 1., 0., 0.5); /* 50% green */ + + cairo_fill (cr); + + /* A red circle with SOURCE */ + cairo_arc (cr, SIZE / 2, SIZE / 2, SIZE / 4, 0., 2. * M_PI); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgba (cr, 1., 0., 0., 0.5); /* 50% red */ + + cairo_fill (cr); + + /* Another green triangle with OVER */ + cairo_move_to (cr, SIZE / 2, SIZE / 2); + cairo_rel_line_to (cr, SIZE / 2, 0); + cairo_rel_line_to (cr, -SIZE / 2, SIZE / 2); + cairo_close_path (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source_rgba (cr, 0., 1., 0., 0.5); /* 50% green */ + + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (over_around_source, + "A simple test drawing a triangle with SOURCE between two circles drawn with OVER", + "operator", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/over-below-source.c b/local/recipes/libs/cairo/source/test/over-below-source.c new file mode 100644 index 0000000000..7fe5bd8898 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/over-below-source.c @@ -0,0 +1,72 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define SIZE 40 +#define PAD 2 +#define WIDTH (PAD + SIZE + PAD) +#define HEIGHT WIDTH + +/* This test is designed to explore the interactions of "native" and + * "fallback" objects. For the ps surface, OVER with non-1.0 opacity + * will be a fallback while SOURCE will be native. For the pdf + * surface, it's the reverse where OVER is native while SOURCE is a + * fallback. */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, PAD, PAD); + + /* A green circle with OVER */ + cairo_arc (cr, SIZE / 2, SIZE / 2, SIZE / 4, 0., 2. * M_PI); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source_rgba (cr, 0., 1., 0., 0.5); /* 50% green */ + + cairo_fill (cr); + + /* A red triangle with SOURCE */ + cairo_move_to (cr, SIZE / 2, SIZE / 2); + cairo_line_to (cr, SIZE, SIZE / 2); + cairo_line_to (cr, SIZE / 2, SIZE); + cairo_close_path (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgba (cr, 1., 0., 0., 0.5); /* 50% red */ + + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (over_below_source, + "A simple test drawing a circle with OVER before a triangle drawn with SOURCE", + "operator", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/over-between-source.c b/local/recipes/libs/cairo/source/test/over-between-source.c new file mode 100644 index 0000000000..ffb657208e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/over-between-source.c @@ -0,0 +1,83 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define SIZE 40 +#define PAD 2 +#define WIDTH (PAD + SIZE + PAD) +#define HEIGHT WIDTH + +/* This test is designed to explore the interactions of "native" and + * "fallback" objects. For the ps surface, OVER with non-1.0 opacity + * will be a fallback while SOURCE will be native. For the pdf + * surface, it's the reverse where OVER is native while SOURCE is a + * fallback. */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, PAD, PAD); + + /* A red triangle with SOURCE */ + cairo_move_to (cr, SIZE / 5, SIZE / 5); + cairo_rel_line_to (cr, SIZE / 2, 0); + cairo_rel_line_to (cr, -SIZE / 2, SIZE / 2); + cairo_close_path (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgba (cr, 1., 0., 0., 0.5); /* 50% red */ + + cairo_fill (cr); + + /* A green circle with OVER */ + cairo_arc (cr, SIZE / 2, SIZE / 2, SIZE / 4, 0., 2. * M_PI); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source_rgba (cr, 0., 1., 0., 0.5); /* 50% green */ + + cairo_fill (cr); + + /* Another red triangle with SOURCE */ + cairo_move_to (cr, SIZE / 2, SIZE / 2); + cairo_rel_line_to (cr, SIZE / 2, 0); + cairo_rel_line_to (cr, -SIZE / 2, SIZE / 2); + cairo_close_path (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgba (cr, 1., 0., 0., 0.5); /* 50% red */ + + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (over_between_source, + "A simple test drawing a circle with OVER between two triangles drawn with SOURCE", + "operator", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/overflow.c b/local/recipes/libs/cairo/source/test/overflow.c new file mode 100644 index 0000000000..cc07541113 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/overflow.c @@ -0,0 +1,214 @@ +/* + * Copyright © 2021 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + + +#include "cairo-test.h" + +#include + +/* Uncomment to enable faulty test data in order to force a + * failure. This allows the error logging path to be tested. + */ +/* #define FORCE_FAILURE 1 */ + +struct test_data { + uint64_t a; + uint64_t b; + uint64_t result; + cairo_bool_t overflow; +}; + +#if SIZEOF_SIZE_T == 4 +static const struct test_data add_32bit_test_data[] = { + { 0x00000000, 0x00000000, 0x00000000, 0 }, + { 0x00000001, 0x00000000, 0x00000001, 0 }, + { 0x00000000, 0x00000001, 0x00000001, 0 }, + { 0xffffffff, 0x00000001, 0x00000000, 1 }, + { 0x00000001, 0xffffffff, 0x00000000, 1 }, + { 0xfffffffe, 0x00000001, 0xffffffff, 0 }, + { 0x00000001, 0xfffffffe, 0xffffffff, 0 }, + { 0x12345678, 0x98765432, 0xaaaaaaaa, 0 }, + { 0x80000000, 0x80000000, 0x00000000, 1 }, + +#if FORCE_FAILURE + { 0x00000001, 0x00000002, 0x00000004, 1 }, +#endif +}; + +static const struct test_data mul_32bit_test_data[] = { + { 0x00000000, 0x00000000, 0x00000000, 0 }, + { 0x0000ffff, 0x0000ffff, 0xfffe0001, 0 }, + { 0x00010000, 0x00010000, 0x00000000, 1 }, + { 0x00000002, 0x80000000, 0x00000000, 1 }, + { 0x80000000, 0x00000002, 0x00000000, 1 }, + { 0xffffffff, 0x00000001, 0xffffffff, 0 }, +}; +#endif + +#if SIZEOF_SIZE_T == 8 +static const struct test_data add_64bit_test_data[] = { + { 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0 }, + { 0x0000000000000001, 0x0000000000000000, 0x0000000000000001, 0 }, + { 0x0000000000000000, 0x0000000000000001, 0x0000000000000001, 0 }, + { 0xffffffffffffffff, 0x0000000000000001, 0x0000000000000000, 1 }, + { 0x0000000000000001, 0xffffffffffffffff, 0x0000000000000000, 1 }, + { 0x0000000000000001, 0xfffffffffffffffe, 0xffffffffffffffff, 0 }, + { 0xfffffffffffffffe, 0x0000000000000001, 0xffffffffffffffff, 0 }, + { 0x123456789abcdef0, 0x987654320fedcbba, 0xaaaaaaaaaaaaaaaa, 0 }, + { 0x8000000000000000, 0x8000000000000000, 0x0000000000000000, 1 }, + +#if FORCE_FAILURE + { 0x0000000000000001, 0x0000000000000002, 0x0000000000000004, 1 }, +#endif +}; + +static const struct test_data mul_64bit_test_data[] = { + { 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0 }, + { 0x00000000ffffffff, 0x00000000ffffffff, 0xfffffffe00000001, 0 }, + { 0x0000000100000000, 0x0000000100000000, 0x0000000000000000, 1 }, + { 0x0000000000000002, 0x8000000000000000, 0x0000000000000000, 1 }, + { 0x8000000000000000, 0x0000000000000002, 0x0000000000000000, 1 }, + { 0xffffffffffffffff, 0x0000000000000001, 0xffffffffffffffff, 0 }, +}; +#endif + +static cairo_bool_t +check_if_result_fail (cairo_test_context_t *ctx, + size_t result, + cairo_bool_t overflow, + const struct test_data *data, + const char *func_name) +{ + int hex_digits = SIZEOF_SIZE_T * 2; + if (overflow != data->overflow || (!data->overflow && result != data->result)) { + cairo_test_log (ctx, "%s a = 0x%0*llx b = 0x%0*llx result = 0x%0*llx overflow = %d\n", + func_name, + hex_digits, + (unsigned long long)data->a, + hex_digits, + (unsigned long long)data->b, + hex_digits, + (unsigned long long)result, + overflow); + if (data->overflow) + cairo_test_log (ctx, "EXPECTED overflow = 1\n"); + else + cairo_test_log (ctx, "EXPECTED result = 0x%0*llx overflow = 0\n", + hex_digits, + (unsigned long long)data->result); + return TRUE; + } + return FALSE; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + int i; + cairo_bool_t overflow; + size_t result; + +#if SIZEOF_SIZE_T == 4 + const struct test_data *add_data = add_32bit_test_data; + int num_add_tests = ARRAY_LENGTH(add_32bit_test_data); + const struct test_data *mul_data = mul_32bit_test_data; + int num_mul_tests = ARRAY_LENGTH(mul_32bit_test_data); +#elif SIZEOF_SIZE_T == 8 + const struct test_data *add_data = add_64bit_test_data; + int num_add_tests = ARRAY_LENGTH(add_64bit_test_data); + const struct test_data *mul_data = mul_64bit_test_data; + int num_mul_tests = ARRAY_LENGTH(mul_64bit_test_data); +#else + cairo_test_log (ctx, "sizeof(size_t) = %lld is not supported by this test\n", + (unsigned long long)sizeof(size_t)); + return CAIRO_TEST_UNTESTED; +#endif + + /* First check the fallback versions of the overflow functions. */ + for (i = 0; i < num_add_tests; i++) { + const struct test_data *data = &add_data[i]; + overflow = _cairo_fallback_add_size_t_overflow (data->a, data->b, &result); + if (check_if_result_fail (ctx, + result, + overflow, + data, + "_cairo_fallback_add_size_t_overflow")) + { + return CAIRO_TEST_FAILURE; + } + } + + for (i = 0; i < num_mul_tests; i++) { + const struct test_data *data = &mul_data[i]; + overflow = _cairo_fallback_mul_size_t_overflow (data->a, data->b, &result); + if (check_if_result_fail (ctx, + result, + overflow, + data, + "_cairo_fallback_mul_size_t_overflow")) + { + return CAIRO_TEST_FAILURE; + } + } + /* Next check the compiler builtins (if available, otherwise the + * fallback versions are tested again). This is to ensure the fallback version + * produces identical results to the compiler builtins. + */ + for (i = 0; i < num_add_tests; i++) { + const struct test_data *data = &add_data[i]; + overflow = _cairo_add_size_t_overflow (data->a, data->b, &result); + if (check_if_result_fail (ctx, + result, + overflow, + data, + "_cairo_add_size_t_overflow")) + { + return CAIRO_TEST_FAILURE; + } + } + + for (i = 0; i < num_mul_tests; i++) { + const struct test_data *data = &mul_data[i]; + overflow = _cairo_mul_size_t_overflow (data->a, data->b, &result); + if (check_if_result_fail (ctx, + result, + overflow, + data, + "_cairo_mul_size_t_overflow")) + { + return CAIRO_TEST_FAILURE; + } + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (overflow, + "Test the _cairo_*_size_t_overflow functions.", + "memory", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/overlapping-boxes.c b/local/recipes/libs/cairo/source/test/overlapping-boxes.c new file mode 100644 index 0000000000..92211ee069 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/overlapping-boxes.c @@ -0,0 +1,96 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +/* Not strictly overlapping, but it does highlight the error in + * an optimisation of fill-box handling that I frequently am + * tempted to write. + */ + +#include "cairo-test.h" + +#define WIDTH (20) +#define HEIGHT (20) + +static void +border (cairo_t *cr) +{ + cairo_rectangle (cr, 1, 1, 8, 8); + cairo_rectangle (cr, 1.25, 1.25, 7.5, 7.5); + cairo_rectangle (cr, 1.75, 1.75, 6.5, 6.5); + cairo_rectangle (cr, 2, 2, 6, 6); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + border (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_fill (cr); + + cairo_translate (cr, 10, 0); + + border (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_fill (cr); + + cairo_translate (cr, 0, 10); + + cairo_rectangle (cr, 0, 0, 10, 10); + cairo_clip (cr); + + border (cr); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_set_operator (cr, CAIRO_OPERATOR_IN); + cairo_fill (cr); + + cairo_reset_clip (cr); + + cairo_translate (cr, -10, 0); + + cairo_rectangle (cr, 0, 0, 10, 10); + cairo_clip (cr); + + border (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (overlapping_boxes, + "A sub-pixel double border to highlight the danger in an easy optimisation", + "fill", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/overlapping-dash-caps.c b/local/recipes/libs/cairo/source/test/overlapping-dash-caps.c new file mode 100644 index 0000000000..f7ba248c2f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/overlapping-dash-caps.c @@ -0,0 +1,67 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 100 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double dashes1[] = {20, 10}; + double dashes2[] = {10, 1}; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_line_width (cr, 15); + + cairo_set_dash (cr, dashes1, 2, 0); + cairo_new_sub_path (cr); + cairo_arc (cr, SIZE/2, SIZE/2, SIZE/2-10, 0, 2*M_PI); + + cairo_set_source_rgba (cr, 1, 0, 0, 0.5); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_stroke (cr); + + cairo_set_dash (cr, dashes2, 2, 0); + cairo_new_sub_path (cr); + cairo_arc (cr, SIZE/2, SIZE/2, SIZE/4-5, 0, 2*M_PI); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_source_rgba (cr, 0, 1, 0, 0.5); + cairo_stroke (cr); + + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (overlapping_dash_caps, + "Test intersections between neighbouring dash segments", + "overlap, dash", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/overlapping-glyphs.c b/local/recipes/libs/cairo/source/test/overlapping-glyphs.c new file mode 100644 index 0000000000..93067abc7c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/overlapping-glyphs.c @@ -0,0 +1,123 @@ +/* + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#include + +#define TEXT_SIZE 12 +#define HEIGHT (TEXT_SIZE + 4) +#define WIDTH 50 + +#define MAX_GLYPHS 80 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_glyph_t glyphs_stack[MAX_GLYPHS], *glyphs; + const char *cairo = "Cairo"; + const char *giza = "Giza"; + cairo_text_extents_t cairo_extents; + cairo_text_extents_t giza_extents; + int count, num_glyphs; + double x0, y0; + + /* We draw in the default black, so paint white first. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + + /* We want to overlap two strings, so compute overlapping glyphs. */ + + cairo_text_extents (cr, cairo, &cairo_extents); + cairo_text_extents (cr, giza, &giza_extents); + + x0 = WIDTH/2. - (cairo_extents.width/2. + cairo_extents.x_bearing); + y0 = HEIGHT/2. - (cairo_extents.height/2. + cairo_extents.y_bearing); + glyphs = glyphs_stack; + count = MAX_GLYPHS; + cairo_scaled_font_text_to_glyphs (cairo_get_scaled_font (cr), + x0, y0, + cairo, strlen (cairo), + &glyphs, &count, + NULL, NULL, + NULL); + assert (glyphs == glyphs_stack); + num_glyphs = count; + + x0 = WIDTH/2. - (giza_extents.width/2. + giza_extents.x_bearing); + y0 = HEIGHT/2. - (giza_extents.height/2. + giza_extents.y_bearing); + glyphs = glyphs_stack + count; + count = MAX_GLYPHS - count; + cairo_scaled_font_text_to_glyphs (cairo_get_scaled_font (cr), + x0, y0, + giza, strlen (giza), + &glyphs, &count, + NULL, NULL, + NULL); + assert (glyphs == glyphs_stack + num_glyphs); + glyphs = glyphs_stack; + num_glyphs += count; + + cairo_set_source_rgba (cr, 0, 0, 0, .5); /* translucent black, gray! */ + cairo_show_glyphs (cr, glyphs, num_glyphs); + + /* and compare with filling */ + cairo_translate (cr, 0, HEIGHT); + cairo_glyph_path (cr, glyphs, num_glyphs); + cairo_fill (cr); + + /* switch to using an unbounded operator for added complexity */ + cairo_set_operator (cr, CAIRO_OPERATOR_IN); + + cairo_translate (cr, WIDTH, -HEIGHT); + cairo_save (cr); + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + cairo_show_glyphs (cr, glyphs, num_glyphs); + cairo_restore (cr); + + cairo_translate (cr, 0, HEIGHT); + cairo_save (cr); + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + cairo_glyph_path (cr, glyphs, num_glyphs); + cairo_fill (cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (overlapping_glyphs, + "Test handing of overlapping glyphs", + "text, glyphs", /* keywords */ + NULL, /* requirements */ + 2 * WIDTH, 2 * HEIGHT, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/paint-clip-fill.c b/local/recipes/libs/cairo/source/test/paint-clip-fill.c new file mode 100644 index 0000000000..5a9e24ffb2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/paint-clip-fill.c @@ -0,0 +1,106 @@ +/* + * Copyright 2011 SCore Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Taekyun Kim + */ + +#include "cairo-test.h" + +static void +rounded_rectangle(cairo_t *cr, + double x, double y, + double width, double height, + double radius) +{ + cairo_move_to (cr, x, y + radius); + cairo_line_to (cr, x, y + height - radius); + cairo_curve_to (cr, x, y + height - radius/2.0, + x + radius/2.0, y + height, + x + radius, y + height); + cairo_line_to (cr, x + width - radius, y + height); + cairo_curve_to (cr, x + width - radius/2.0, y + height, + x + width, y + height - radius/2.0, + x + width, y + height - radius); + cairo_line_to (cr, x + width, y + radius); + cairo_curve_to (cr, x + width, y + radius/2.0, + x + width - radius/2.0, y, + x + width - radius, y); + cairo_line_to (cr, x + radius, y); + cairo_curve_to (cr, x + radius/2.0, y, x, y + radius/2.0, x, y + radius); + cairo_close_path(cr); +} + +static cairo_test_status_t +draw_mono (cairo_t *cr, int width, int height) +{ + cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE); + cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0); + cairo_paint(cr); + + cairo_rectangle(cr, 20, 20, 60, 60); + cairo_clip(cr); + + rounded_rectangle(cr, 0, 0, 100, 100, 10); + cairo_clip(cr); + + cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 1.0); + cairo_set_operator(cr, CAIRO_OPERATOR_OVER); + cairo_paint(cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_aa (cairo_t *cr, int width, int height) +{ + cairo_set_antialias(cr, CAIRO_ANTIALIAS_DEFAULT); + cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0); + cairo_paint(cr); + + cairo_rectangle(cr, 20, 20, 60, 60); + cairo_clip(cr); + + rounded_rectangle(cr, 0, 0, 100, 100, 10); + cairo_clip(cr); + + cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 1.0); + cairo_set_operator(cr, CAIRO_OPERATOR_OVER); + cairo_paint(cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (paint_clip_fill_mono, + "Test reduction of a paint with a clip", + "paint, clip", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw_mono) +CAIRO_TEST (paint_clip_fill_aa, + "Test reduction of a paint with a clip", + "paint, clip", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw_aa) diff --git a/local/recipes/libs/cairo/source/test/paint-repeat.c b/local/recipes/libs/cairo/source/test/paint-repeat.c new file mode 100644 index 0000000000..c48d84c0e2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/paint-repeat.c @@ -0,0 +1,61 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + uint32_t data[16] = { + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff, + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff + }; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + /* We use a non-zero offset larger than the source surface size to + * stress cairo out a bit more. */ + cairo_set_source_surface (cr, surface, 10, 10); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT); + cairo_paint (cr); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (paint_repeat, + "Test calls to cairo_paint with a repeating source surface pattern", + "paint", /* keywords */ + NULL, /* requirements */ + 8, 8, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/paint-source-alpha.c b/local/recipes/libs/cairo/source/test/paint-source-alpha.c new file mode 100644 index 0000000000..cb2d488ca5 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/paint-source-alpha.c @@ -0,0 +1,63 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + uint32_t data[16] = { + 0x80808080, 0x80808080, 0x80800000, 0x80800000, + 0x80808080, 0x80808080, 0x80800000, 0x80800000, + + 0x80008000, 0x80008000, 0x80000080, 0x80000080, + 0x80008000, 0x80008000, 0x80000080, 0x80000080 + }; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_ARGB32, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint (cr); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (paint_source_alpha, + "Simple test of cairo_paint with a source surface with non-opaque alpha", + "paint, alpha", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/paint-with-alpha-group-clip.c b/local/recipes/libs/cairo/source/test/paint-with-alpha-group-clip.c new file mode 100644 index 0000000000..e1e438330d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/paint-with-alpha-group-clip.c @@ -0,0 +1,60 @@ +/* + * Copyright © 2013 Adrian Johnson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Adrian Johnson + */ + +/* + * This attempts to exercise the bug found in + * + * https://bugs.launchpad.net/inkscape/+bug/1258265 + */ + + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_push_group (cr); + cairo_push_group (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + cairo_pop_group_to_source (cr); + cairo_paint_with_alpha (cr, 0.25); + cairo_pop_group_to_source (cr); + cairo_rectangle (cr, 5, 5, 20, 20); + cairo_clip (cr); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (paint_with_alpha_group_clip, + "Test paint with alpha and clipping", + "paint alpha clip group record", /* keywords */ + NULL, /* requirements */ + 30, 30, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/paint-with-alpha.c b/local/recipes/libs/cairo/source/test/paint-with-alpha.c new file mode 100644 index 0000000000..8daa935f7d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/paint-with-alpha.c @@ -0,0 +1,148 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +static uint32_t data[16] = { + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff, + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff +}; +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_solid_clip (cairo_t *cr, int width, int height) +{ + cairo_test_paint_checkered (cr); + + cairo_rectangle (cr, 2.5, 2.5, 27, 27); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 1., 0.,0.); + cairo_paint_with_alpha (cr, 0.5); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_clip (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_rectangle (cr, 10.5, 10.5, 11, 11); + cairo_clip (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_clip_mask (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_move_to (cr, 16, 5); + cairo_line_to (cr, 5, 16); + cairo_line_to (cr, 16, 27); + cairo_line_to (cr, 27, 16); + cairo_clip (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (paint_with_alpha, + "Simple test of cairo_paint_with_alpha", + "paint, alpha", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, draw) +CAIRO_TEST (paint_with_alpha_solid_clip, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, draw_solid_clip) +CAIRO_TEST (paint_with_alpha_clip, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, draw_clip) +CAIRO_TEST (paint_with_alpha_clip_mask, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, draw_clip_mask) diff --git a/local/recipes/libs/cairo/source/test/paint.c b/local/recipes/libs/cairo/source/test/paint.c new file mode 100644 index 0000000000..c5fd648e35 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/paint.c @@ -0,0 +1,48 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + cairo_translate (cr, 2, 2); + cairo_scale (cr, 0.5, 0.5); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (paint, + "Test calls to cairo_paint", + "paint", /* keywords */ + NULL, /* requirements */ + 8, 8, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/partial-clip-text.c b/local/recipes/libs/cairo/source/test/partial-clip-text.c new file mode 100644 index 0000000000..4d8bae077b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/partial-clip-text.c @@ -0,0 +1,120 @@ +/* + * Copyright 2010 Igor Nikitin + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Igor Nikitin + */ + +#include "cairo-test.h" + +#define HEIGHT 15 +#define WIDTH 40 + +static void background (cairo_t *cr) +{ + cairo_set_source_rgb( cr, 0, 0, 0 ); + cairo_paint (cr); +} + +static void text (cairo_t *cr) +{ + cairo_move_to (cr, 0, 12); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_show_text (cr, "CAIRO"); +} + +static cairo_test_status_t +top (cairo_t *cr, int width, int height) +{ + background (cr); + + cairo_rectangle (cr, 0, 0, WIDTH, 5); + cairo_clip (cr); + + text (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +bottom (cairo_t *cr, int width, int height) +{ + background (cr); + + cairo_rectangle (cr, 0, HEIGHT-5, WIDTH, 5); + cairo_clip (cr); + + text (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +left (cairo_t *cr, int width, int height) +{ + background (cr); + + cairo_rectangle (cr, 0, 0, 10, HEIGHT); + cairo_clip (cr); + + text (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +right (cairo_t *cr, int width, int height) +{ + background (cr); + + cairo_rectangle (cr, WIDTH-10, 0, 10, HEIGHT); + cairo_clip (cr); + + text (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (partial_clip_text_top, + "Tests drawing text through a single, partial clip.", + "clip, text", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, top) +CAIRO_TEST (partial_clip_text_bottom, + "Tests drawing text through a single, partial clip.", + "clip, text", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, bottom) +CAIRO_TEST (partial_clip_text_left, + "Tests drawing text through a single, partial clip.", + "clip, text", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, left) +CAIRO_TEST (partial_clip_text_right, + "Tests drawing text through a single, partial clip.", + "clip, text", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, right) diff --git a/local/recipes/libs/cairo/source/test/partial-coverage.c b/local/recipes/libs/cairo/source/test/partial-coverage.c new file mode 100644 index 0000000000..3e64d0e125 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/partial-coverage.c @@ -0,0 +1,680 @@ +/* + * Copyright 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* Test the sampling stratagems of the rasterisers by creating pixels + * containing minute holes and seeing how close to the expected + * coverage each rasteriser approaches. + */ + +#define SIZE 64 + +#include "../src/cairo-fixed-type-private.h" +#define SAMPLE (1 << CAIRO_FIXED_FRAC_BITS) + +static uint32_t state; + +static uint32_t +hars_petruska_f54_1_random (void) +{ +#define rol(x,k) ((x << k) | (x >> (32-k))) + return state = (state ^ rol (state, 5) ^ rol (state, 24)) + 0x37798849; +#undef rol +} + +static double +uniform_random (void) +{ + return hars_petruska_f54_1_random() / (double) UINT32_MAX; +} + +/* coverage is given in [0,sample] */ +static void +compute_occupancy (uint8_t *occupancy, int coverage, int sample) +{ + int i, c; + + if (coverage < sample/2) { + memset (occupancy, 0, sample); + if (coverage == 0) + return; + + for (i = c = 0; i < sample; i++) { + if ((sample - i) * uniform_random() < coverage - c) { + occupancy[i] = 0xff; + if (++c == coverage) + return; + } + } + } else { + coverage = sample - coverage; + memset (occupancy, 0xff, sample); + if (coverage == 0) + return; + + for (i = c = 0; i < sample; i++) { + if ((sample - i) * uniform_random() < coverage - c) { + occupancy[i] = 0; + if (++c == coverage) + return; + } + } + } +} + +static cairo_test_status_t +reference (cairo_t *cr, int width, int height) +{ + int i; + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + for (i = 0; i < SIZE*SIZE; i++) { + cairo_set_source_rgba (cr, 1., 1., 1., + i / (double) (SIZE * SIZE)); + cairo_rectangle (cr, i % SIZE, i / SIZE, 1, 1); + cairo_fill (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +three_quarter_reference (cairo_t *cr, int width, int height) +{ + int i; + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + for (i = 0; i < SIZE*SIZE; i++) { + cairo_set_source_rgba (cr, 1., 1., 1., + .75 * i / (double) (SIZE * SIZE)); + cairo_rectangle (cr, i % SIZE, i / SIZE, 1, 1); + cairo_fill (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +half_reference (cairo_t *cr, int width, int height) +{ + int i; + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + for (i = 0; i < SIZE*SIZE; i++) { + cairo_set_source_rgba (cr, 1., 1., 1., + .5 * i / (double) (SIZE * SIZE)); + cairo_rectangle (cr, i % SIZE, i / SIZE, 1, 1); + cairo_fill (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +rectangles (cairo_t *cr, int width, int height) +{ + uint8_t *occupancy; + int i, j, channel; + + state = 0x12345678; + occupancy = xmalloc (SAMPLE*SAMPLE); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (channel = 0; channel < 3; channel++) { + switch (channel) { + default: + case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break; + case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break; + case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; + } + + for (i = 0; i < SIZE*SIZE; i++) { + int xs, ys; + + compute_occupancy (occupancy, SAMPLE*SAMPLE * i / (SIZE * SIZE), SAMPLE*SAMPLE); + + xs = i % SIZE * SAMPLE; + ys = i / SIZE * SAMPLE; + for (j = 0; j < SAMPLE*SAMPLE; j++) { + if (occupancy[j]) { + cairo_rectangle (cr, + (j % SAMPLE + xs) / (double) SAMPLE, + (j / SAMPLE + ys) / (double) SAMPLE, + 1 / (double) SAMPLE, + 1 / (double) SAMPLE); + } + } + cairo_fill (cr); + } + } + + free (occupancy); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +intersecting_quads (cairo_t *cr, int width, int height) +{ + uint8_t *occupancy; + int i, j, channel; + + state = 0x12345678; + occupancy = xmalloc (SAMPLE*SAMPLE); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (channel = 0; channel < 3; channel++) { + switch (channel) { + default: + case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break; + case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break; + case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; + } + + for (i = 0; i < SIZE*SIZE; i++) { + int xs, ys; + + compute_occupancy (occupancy, SAMPLE*SAMPLE * i / (SIZE * SIZE), SAMPLE*SAMPLE); + + xs = i % SIZE * SAMPLE; + ys = i / SIZE * SAMPLE; + for (j = 0; j < SAMPLE*SAMPLE; j++) { + if (occupancy[j]) { + cairo_move_to (cr, + (j % SAMPLE + xs) / (double) SAMPLE, + (j / SAMPLE + ys) / (double) SAMPLE); + cairo_rel_line_to (cr, 1 / (double) SAMPLE, 1 / (double) SAMPLE); + cairo_rel_line_to (cr, 0, -1 / (double) SAMPLE); + cairo_rel_line_to (cr, -1 / (double) SAMPLE, 1 / (double) SAMPLE); + cairo_close_path (cr); + } + } + cairo_fill (cr); + } + } + + free (occupancy); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +half_triangles (cairo_t *cr, int width, int height) +{ + uint8_t *occupancy; + int i, j, channel; + + state = 0x12345678; + occupancy = xmalloc (SAMPLE*SAMPLE); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (channel = 0; channel < 3; channel++) { + switch (channel) { + default: + case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break; + case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break; + case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; + } + + for (i = 0; i < SIZE*SIZE; i++) { + int xs, ys; + + compute_occupancy (occupancy, SAMPLE*SAMPLE * i / (SIZE * SIZE), SAMPLE*SAMPLE); + + xs = i % SIZE * SAMPLE; + ys = i / SIZE * SAMPLE; + for (j = 0; j < SAMPLE*SAMPLE; j++) { + if (occupancy[j]) { + int x = j % SAMPLE + xs; + int y = j / SAMPLE + ys; + cairo_move_to (cr, x / (double) SAMPLE, y / (double) SAMPLE); + cairo_line_to (cr, (x+1) / (double) SAMPLE, (y+1) / (double) SAMPLE); + cairo_line_to (cr, (x+1) / (double) SAMPLE, y / (double) SAMPLE); + cairo_close_path (cr); + } + } + cairo_fill (cr); + } + } + + free (occupancy); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +overlap_half_triangles (cairo_t *cr, int width, int height) +{ + uint8_t *occupancy; + int i, j, channel; + + state = 0x12345678; + occupancy = xmalloc (SAMPLE*SAMPLE); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (channel = 0; channel < 3; channel++) { + switch (channel) { + default: + case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break; + case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break; + case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; + } + + for (i = 0; i < SIZE*SIZE; i++) { + int xs, ys; + + compute_occupancy (occupancy, SAMPLE/2*SAMPLE/2 * i / (SIZE * SIZE), SAMPLE/2*SAMPLE/2); + + xs = i % SIZE * SAMPLE; + ys = i / SIZE * SAMPLE; + for (j = 0; j < SAMPLE/2*SAMPLE/2; j++) { + if (occupancy[j]) { + int x = 2 * (j % (SAMPLE/2)) + xs; + int y = 2 * (j / (SAMPLE/2)) + ys; + + /* Add a 4-tile composed of two overlapping triangles. + * .__.__. + * |\ /| + * | \ / | + * . x | + * | / \ | + * |/ \| + * . . + * + * Coverage should be computable as 50% (due to counter-winding). + */ + + cairo_move_to (cr, (x) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_line_to (cr, (x) / (double) SAMPLE, (y+2) / (double) SAMPLE); + cairo_line_to (cr, (x+2) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_close_path (cr); + + cairo_move_to (cr, (x) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_line_to (cr, (x+2) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_line_to (cr, (x+2) / (double) SAMPLE, (y+2) / (double) SAMPLE); + cairo_close_path (cr); + } + } + cairo_fill (cr); + } + } + + free (occupancy); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +overlap_half_triangles_eo (cairo_t *cr, int width, int height) +{ + uint8_t *occupancy; + int i, j, channel; + + state = 0x12345678; + occupancy = xmalloc (SAMPLE*SAMPLE); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (channel = 0; channel < 3; channel++) { + switch (channel) { + default: + case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break; + case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break; + case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; + } + + for (i = 0; i < SIZE*SIZE; i++) { + int xs, ys; + + compute_occupancy (occupancy, SAMPLE/2*SAMPLE/2 * i / (SIZE * SIZE), SAMPLE/2*SAMPLE/2); + + xs = i % SIZE * SAMPLE; + ys = i / SIZE * SAMPLE; + for (j = 0; j < SAMPLE/2*SAMPLE/2; j++) { + if (occupancy[j]) { + int x = 2 * (j % (SAMPLE/2)) + xs; + int y = 2 * (j / (SAMPLE/2)) + ys; + + /* Add a 4-tile composed of two overlapping triangles. + * .__.__. + * |\ /| + * | \ / | + * . x | + * | / \ | + * |/ \| + * . . + * + * Coverage should be computable as 50%, due to even-odd fill rule. + */ + + cairo_move_to (cr, (x) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_line_to (cr, (x) / (double) SAMPLE, (y+2) / (double) SAMPLE); + cairo_line_to (cr, (x+2) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_close_path (cr); + + cairo_move_to (cr, (x) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_line_to (cr, (x+2) / (double) SAMPLE, (y+2) / (double) SAMPLE); + cairo_line_to (cr, (x+2) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_close_path (cr); + } + } + cairo_fill (cr); + } + } + + free (occupancy); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +overlap_three_quarter_triangles (cairo_t *cr, int width, int height) +{ + uint8_t *occupancy; + int i, j, channel; + + state = 0x12345678; + occupancy = xmalloc (SAMPLE*SAMPLE); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (channel = 0; channel < 3; channel++) { + switch (channel) { + default: + case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break; + case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break; + case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; + } + + for (i = 0; i < SIZE*SIZE; i++) { + int xs, ys; + + compute_occupancy (occupancy, SAMPLE/2*SAMPLE/2 * i / (SIZE * SIZE), SAMPLE/2*SAMPLE/2); + + xs = i % SIZE * SAMPLE; + ys = i / SIZE * SAMPLE; + for (j = 0; j < SAMPLE/2*SAMPLE/2; j++) { + if (occupancy[j]) { + int x = 2 * (j % (SAMPLE/2)) + xs; + int y = 2 * (j / (SAMPLE/2)) + ys; + + /* Add a 4-tile composed of two overlapping triangles. + * .__.__. + * |\ /| + * | \ / | + * . x | + * | / \ | + * |/ \| + * . . + * + * Coverage should be computable as 75%. + */ + + cairo_move_to (cr, (x) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_line_to (cr, (x) / (double) SAMPLE, (y+2) / (double) SAMPLE); + cairo_line_to (cr, (x+2) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_close_path (cr); + + cairo_move_to (cr, (x) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_line_to (cr, (x+2) / (double) SAMPLE, (y+2) / (double) SAMPLE); + cairo_line_to (cr, (x+2) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_close_path (cr); + } + } + cairo_fill (cr); + } + } + + free (occupancy); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +triangles (cairo_t *cr, int width, int height) +{ + uint8_t *occupancy; + int i, j, channel; + + state = 0x12345678; + occupancy = xmalloc (SAMPLE*SAMPLE); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (channel = 0; channel < 3; channel++) { + switch (channel) { + default: + case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break; + case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break; + case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; + } + + for (i = 0; i < SIZE*SIZE; i++) { + int xs, ys; + + compute_occupancy (occupancy, SAMPLE*SAMPLE * i / (SIZE * SIZE), SAMPLE*SAMPLE); + + xs = i % SIZE * SAMPLE; + ys = i / SIZE * SAMPLE; + for (j = 0; j < SAMPLE*SAMPLE; j++) { + if (occupancy[j]) { + /* Add a tile composed of two non-overlapping triangles. + * .__. + * | /| + * |/ | + * .--. + */ + int x = j % SAMPLE + xs; + int y = j / SAMPLE + ys; + + /* top-left triangle */ + cairo_move_to (cr, (x) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_line_to (cr, (x+1) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_line_to (cr, (x) / (double) SAMPLE, (y+1) / (double) SAMPLE); + cairo_close_path (cr); + + /* bottom-right triangle */ + cairo_move_to (cr, (x) / (double) SAMPLE, (y+1) / (double) SAMPLE); + cairo_line_to (cr, (x+1) / (double) SAMPLE, (y+1) / (double) SAMPLE); + cairo_line_to (cr, (x+1) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_close_path (cr); + } + } + cairo_fill (cr); + } + } + + free (occupancy); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +intersecting_triangles (cairo_t *cr, int width, int height) +{ + uint8_t *occupancy; + int i, j, channel; + + state = 0x12345678; + occupancy = xmalloc (SAMPLE*SAMPLE); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + for (channel = 0; channel < 3; channel++) { + switch (channel) { + default: + case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break; + case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break; + case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break; + } + + for (i = 0; i < SIZE*SIZE; i++) { + int xs, ys; + + compute_occupancy (occupancy, SAMPLE*SAMPLE * i / (SIZE * SIZE), SAMPLE*SAMPLE); + + xs = i % SIZE * SAMPLE; + ys = i / SIZE * SAMPLE; + for (j = 0; j < SAMPLE*SAMPLE; j++) { + if (occupancy[j]) { + /* Add 2 overlapping tiles in a single cell, each composed + * of two non-overlapping triangles. + * .--. .--. + * | /| |\ | + * |/ | + | \| + * .--. .--. + */ + int x = j % SAMPLE + xs; + int y = j / SAMPLE + ys; + + /* first pair of triangles, diagonal bottom-left to top-right */ + cairo_move_to (cr, (x) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_line_to (cr, (x+1) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_line_to (cr, (x) / (double) SAMPLE, (y+1) / (double) SAMPLE); + cairo_close_path (cr); + cairo_move_to (cr, (x) / (double) SAMPLE, (y+1) / (double) SAMPLE); + cairo_line_to (cr, (x+1) / (double) SAMPLE, (y+1) / (double) SAMPLE); + cairo_line_to (cr, (x+1) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_close_path (cr); + + /* second pair of triangles, diagonal top-left to bottom-right */ + cairo_move_to (cr, (x) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_line_to (cr, (x+1) / (double) SAMPLE, (y+1) / (double) SAMPLE); + cairo_line_to (cr, (x+1) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_close_path (cr); + cairo_move_to (cr, (x) / (double) SAMPLE, (y) / (double) SAMPLE); + cairo_line_to (cr, (x+1) / (double) SAMPLE, (y+1) / (double) SAMPLE); + cairo_line_to (cr, (x) / (double) SAMPLE, (y+1) / (double) SAMPLE); + cairo_close_path (cr); + } + } + cairo_fill (cr); + } + } + + free (occupancy); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (partial_coverage_rectangles, + "Check the fidelity of the rasterisation.", + "coverage, raster", /* keywords */ + "target=raster slow", /* requirements */ + SIZE, SIZE, + NULL, rectangles) + +CAIRO_TEST (partial_coverage_intersecting_quads, + "Check the fidelity of the rasterisation.", + "coverage, raster", /* keywords */ + "target=raster slow", /* requirements */ + SIZE, SIZE, + NULL, intersecting_quads) + +CAIRO_TEST (partial_coverage_intersecting_triangles, + "Check the fidelity of the rasterisation.", + "coverage, raster", /* keywords */ + "target=raster slow", /* requirements */ + SIZE, SIZE, + NULL, intersecting_triangles) +CAIRO_TEST (partial_coverage_triangles, + "Check the fidelity of the rasterisation.", + "coverage, raster", /* keywords */ + "target=raster slow", /* requirements */ + SIZE, SIZE, + NULL, triangles) +CAIRO_TEST (partial_coverage_overlap_three_quarter_triangles, + "Check the fidelity of the rasterisation.", + "coverage, raster", /* keywords */ + "target=raster slow", /* requirements */ + SIZE, SIZE, + NULL, overlap_three_quarter_triangles) +CAIRO_TEST (partial_coverage_overlap_half_triangles_eo, + "Check the fidelity of the rasterisation.", + "coverage, raster", /* keywords */ + "target=raster slow", /* requirements */ + SIZE, SIZE, + NULL, overlap_half_triangles_eo) +CAIRO_TEST (partial_coverage_overlap_half_triangles, + "Check the fidelity of the rasterisation.", + "coverage, raster", /* keywords */ + "target=raster slow", /* requirements */ + SIZE, SIZE, + NULL, overlap_half_triangles) +CAIRO_TEST (partial_coverage_half_triangles, + "Check the fidelity of the rasterisation.", + "coverage, raster", /* keywords */ + "target=raster slow", /* requirements */ + SIZE, SIZE, + NULL, half_triangles) + +CAIRO_TEST (partial_coverage_reference, + "Check the fidelity of this test.", + "coverage, raster", /* keywords */ + "target=raster", /* requirements */ + SIZE, SIZE, + NULL, reference) +CAIRO_TEST (partial_coverage_three_quarter_reference, + "Check the fidelity of this test.", + "coverage, raster", /* keywords */ + "target=raster", /* requirements */ + SIZE, SIZE, + NULL, three_quarter_reference) +CAIRO_TEST (partial_coverage_half_reference, + "Check the fidelity of this test.", + "coverage, raster", /* keywords */ + "target=raster", /* requirements */ + SIZE, SIZE, + NULL, half_reference) diff --git a/local/recipes/libs/cairo/source/test/pass-through.c b/local/recipes/libs/cairo/source/test/pass-through.c new file mode 100644 index 0000000000..17a38db995 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pass-through.c @@ -0,0 +1,91 @@ +/* + * Copyright 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int n; + + for (n = 0; n < 256; n++) { + cairo_set_source_rgba (cr, 1, 1, 1, n / 255.); + cairo_rectangle (cr, 0, n, 2, 1); + cairo_fill (cr); + } + for (n = 0; n < 256; n++) { + cairo_set_source_rgb (cr, n / 255., n / 255., n / 255.); + cairo_rectangle (cr, 2, n, 2, 1); + cairo_fill (cr); + } + + cairo_translate (cr, 4, 0); + + for (n = 0; n < 256; n++) { + cairo_set_source_rgba (cr, 1, 0, 0, n / 255.); + cairo_rectangle (cr, 0, n, 2, 1); + cairo_fill (cr); + } + for (n = 0; n < 256; n++) { + cairo_set_source_rgb (cr, n / 255., 0, 0); + cairo_rectangle (cr, 2, n, 2, 1); + cairo_fill (cr); + } + + cairo_translate (cr, 4, 0); + + for (n = 0; n < 256; n++) { + cairo_set_source_rgba (cr, 0, 1, 0, n / 255.); + cairo_rectangle (cr, 0, n, 2, 1); + cairo_fill (cr); + } + for (n = 0; n < 256; n++) { + cairo_set_source_rgb (cr, 0, n / 255., 0); + cairo_rectangle (cr, 2, n, 2, 1); + cairo_fill (cr); + } + + cairo_translate (cr, 4, 0); + + for (n = 0; n < 256; n++) { + cairo_set_source_rgba (cr, 0, 0, 1, n / 255.); + cairo_rectangle (cr, 0, n, 2, 1); + cairo_fill (cr); + } + for (n = 0; n < 256; n++) { + cairo_set_source_rgb (cr, 0, 0, n / 255.); + cairo_rectangle (cr, 2, n, 2, 1); + cairo_fill (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (pass_through, + "tests pixel values", + "color", /* keywords */ + NULL, /* requirements */ + 16, 256, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/path-append.c b/local/recipes/libs/cairo/source/test/path-append.c new file mode 100644 index 0000000000..bdcc63abff --- /dev/null +++ b/local/recipes/libs/cairo/source/test/path-append.c @@ -0,0 +1,81 @@ +/* + * Copyright © 2009 Jeff Muizelaar + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include "cairo-test.h" +#include + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_matrix_t m; + int xoffset = 50; + int yoffset = 50; + + cairo_surface_t *shadow; + cairo_t *shadow_cr; + cairo_path_t *path; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, 130, 130); + cairo_rotate (cr, .5);//2*M_PI*angle/360); + cairo_rectangle (cr, 0, 0, 50, 100); + cairo_get_matrix (cr, &m); + + shadow = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + 600 - xoffset, + 600 - yoffset); + cairo_surface_set_device_offset (shadow, xoffset, yoffset); + shadow_cr = cairo_create (shadow); + cairo_surface_destroy (shadow); + + cairo_set_source_rgb (shadow_cr, 0, 1, 0); + cairo_set_matrix (shadow_cr, &m); + + path = cairo_copy_path (cr); + cairo_new_path (shadow_cr); + cairo_append_path (shadow_cr, path); + cairo_fill (shadow_cr); + cairo_path_destroy (path); + + cairo_identity_matrix (cr); + cairo_translate (cr, 10, 50); + cairo_set_source_surface (cr, cairo_get_target (shadow_cr), 0, 0); + cairo_paint (cr); + cairo_set_matrix (cr, &m); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill (cr); + + cairo_destroy (shadow_cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (path_append, + "Test appending path to a context, in particular to exercise a regression in 005436", + "path", /* keywords */ + NULL, /* requirements */ + 600, 600, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/path-currentpoint.c b/local/recipes/libs/cairo/source/test/path-currentpoint.c new file mode 100644 index 0000000000..ccd44b1c86 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/path-currentpoint.c @@ -0,0 +1,89 @@ +/* + * Copyright © 2014 Google, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "cairo-test.h" + +#include + +static void +assert_point (cairo_t *cr, double expected_x, double expected_y) { + double x, y; + assert (cairo_has_current_point (cr)); + cairo_get_current_point (cr, &x, &y); + assert (x == expected_x); + assert (y == expected_y); +} + +static void +assert_point_maintained (cairo_t *cr, double expected_x, double expected_y) { + cairo_path_t *path; + + assert_point (cr, expected_x, expected_y); + + path = cairo_copy_path (cr); + + cairo_new_path (cr); + cairo_rectangle (cr, 5, 5, 10, 20); + cairo_stroke (cr); + + cairo_new_path (cr); + cairo_append_path (cr, path); + cairo_path_destroy (path); + + assert_point (cr, expected_x, expected_y); +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 20, 20); + cr = cairo_create (surface); + + cairo_new_path (cr); + cairo_move_to (cr, 1., 2.); + assert_point_maintained (cr, 1., 2.); + + cairo_line_to (cr, 4., 5.); + cairo_move_to (cr, 2., 1.); + assert_point_maintained (cr, 2., 1.); + + cairo_move_to (cr, 5, 5); + cairo_arc (cr, 5, 5, 10, 0, M_PI / 3); + cairo_close_path (cr); + assert_point_maintained (cr, 5, 5); + + cairo_destroy (cr); + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (path_currentpoint, + "Test save/restore path maintains current point", + "api", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/path-precision.c b/local/recipes/libs/cairo/source/test/path-precision.c new file mode 100644 index 0000000000..dc9371c5b7 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/path-precision.c @@ -0,0 +1,129 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + * + * Based on an example by Dirk "krit" Schulze found during WebKit integration. + */ + + /* Copyright (C) 2021 Heiko Lewin + * Added error margin for point comparisons */ + +#include "cairo-test.h" +#include "cairo-fixed-type-private.h" + +/* we know that this is an inherent limitation in cairo */ +#define FAIL CAIRO_TEST_XFAILURE + +/* Test the idempotency of path construction and copying */ + + +/* The error to be expected from double<->fixed conversions */ +#define EXPECTED_ERROR (0.5 / (1< EXPECTED_ERROR) { + return 1; + } + } + return 0; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_path_data_t path_data[] = { + { { CAIRO_PATH_MOVE_TO, 2 }, }, + { .point={ 95.000000, 40.000000 }, }, + + { { CAIRO_PATH_LINE_TO, 2 }, }, + { .point={ 94.960533, 41.255810 }, }, + + { { CAIRO_PATH_LINE_TO, 2 }, }, + { .point={ 94.842293, 42.50666 }, }, + + { { CAIRO_PATH_LINE_TO, 2 }, }, + { .point={ 94.645744, 43.747627 }, }, + + { { CAIRO_PATH_LINE_TO, 2 }, }, + { .point={ 94.371666, 44.973797 }, }, + }; + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_path_t path, *path_copy; + int i, j, n; + cairo_test_status_t result = CAIRO_TEST_SUCCESS; + + path.status = CAIRO_STATUS_SUCCESS; + path.num_data = ARRAY_LENGTH (path_data); + path.data = path_data; + + cairo_new_path (cr); + cairo_append_path (cr, &path); + path_copy = cairo_copy_path (cr); + + if (path_copy->status) + return cairo_test_status_from_status (ctx, path_copy->status); + + for (i = j = n = 0; + i < path.num_data && j < path_copy->num_data; + i += path.data[i].header.length, + j += path_copy->data[j].header.length, + n++) + { + const cairo_path_data_t *src, *dst; + + src = &path.data[i]; + dst = &path_copy->data[j]; + + if (src->header.type != dst->header.type) { + cairo_test_log (ctx, + "Paths differ in header type after %d operations.\n" + "Expected path operation %d, found %d.\n", + n, src->header.type, dst->header.type); + result = FAIL; + break; + } + + if (compare_points ((double*)&src[1].point, (double*)&dst[1].point)) { + cairo_test_log (ctx, + "Paths differ in coordinates after %d operations.\n" + "Expected point (%f, %f), found (%f, %f).\n", + n, + src[1].point.x, src[1].point.y, + dst[1].point.x, dst[1].point.y); + result = FAIL; + break; + } + } + + cairo_path_destroy (path_copy); + return result; +} + +CAIRO_TEST (path_precision, + "Check that the path append/copy is idempotent.", + "api", /* keywords */ + NULL, /* requirements */ + 0, 0, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/path-stroke-twice.c b/local/recipes/libs/cairo/source/test/path-stroke-twice.c new file mode 100644 index 0000000000..876352b0fe --- /dev/null +++ b/local/recipes/libs/cairo/source/test/path-stroke-twice.c @@ -0,0 +1,54 @@ +/* + * Copyright 2010 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* Exercises a bug found by alois@astro.ch: + * https://bugs.freedesktop.org/show_bug.cgi?id=26010 + * cairo_line_to optimizes away path segment + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_move_to (cr, 10, 10); + cairo_line_to (cr, 10, 20); + cairo_line_to (cr, 20, 30); + cairo_line_to (cr, 10, 20); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (path_stroke_twice, + "Tests stroking of a path containing a segment drawn twice", + "path, stroke", /* keywords */ + NULL, /* requirements */ + 40, 40, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/pattern-get-type.c b/local/recipes/libs/cairo/source/test/pattern-get-type.c new file mode 100644 index 0000000000..c807b14e8b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pattern-get-type.c @@ -0,0 +1,79 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +static cairo_test_status_t +preamble (cairo_test_context_t *Ctx) +{ + cairo_surface_t *surface; + cairo_pattern_t *solid_rgb, *solid_rgba, *surface_pattern, *linear, *radial, *mesh; + cairo_test_status_t result = CAIRO_TEST_SUCCESS; + + solid_rgb = cairo_pattern_create_rgb (0.0, 0.1, 0.2); + solid_rgba = cairo_pattern_create_rgba (0.3, 0.4, 0.5, 0.6); + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + 1, 1); + surface_pattern = cairo_pattern_create_for_surface (surface); + linear = cairo_pattern_create_linear (0.0, 0.0, 10.0, 10.0); + radial = cairo_pattern_create_radial (10.0, 10.0, 0.1, + 10.0, 10.0, 1.0); + mesh = cairo_pattern_create_mesh (); + + if (cairo_pattern_get_type (solid_rgb) != CAIRO_PATTERN_TYPE_SOLID) + result = CAIRO_TEST_FAILURE; + + if (cairo_pattern_get_type (solid_rgba) != CAIRO_PATTERN_TYPE_SOLID) + result = CAIRO_TEST_FAILURE; + + if (cairo_pattern_get_type (surface_pattern) != CAIRO_PATTERN_TYPE_SURFACE) + result = CAIRO_TEST_FAILURE; + + if (cairo_pattern_get_type (linear) != CAIRO_PATTERN_TYPE_LINEAR) + result = CAIRO_TEST_FAILURE; + + if (cairo_pattern_get_type (radial) != CAIRO_PATTERN_TYPE_RADIAL) + result = CAIRO_TEST_FAILURE; + + if (cairo_pattern_get_type (mesh) != CAIRO_PATTERN_TYPE_MESH) + result = CAIRO_TEST_FAILURE; + + cairo_pattern_destroy (solid_rgb); + cairo_pattern_destroy (solid_rgba); + cairo_pattern_destroy (surface_pattern); + cairo_surface_destroy (surface); + cairo_pattern_destroy (linear); + cairo_pattern_destroy (radial); + cairo_pattern_destroy (mesh); + + return result; +} + +CAIRO_TEST (pattern_get_type, + "Creating patterns of all types", + "pattern, api", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/pattern-getters.c b/local/recipes/libs/cairo/source/test/pattern-getters.c new file mode 100644 index 0000000000..49027e9130 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pattern-getters.c @@ -0,0 +1,279 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright © 2005 Mozilla Corporation, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Mozilla Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Mozilla Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Vladimir Vukicevic + */ + +#include "cairo-test.h" +#include + +#define CHECK_SUCCESS do { \ + if (status) { \ + cairo_pattern_destroy (pat); \ + return cairo_test_status_from_status (ctx, status); \ + } \ +} while (0) + +static int +double_buf_equal (const cairo_test_context_t *ctx, double *a, double *b, int nc) +{ + int i; + for (i = 0; i < nc; i++) { + if (!CAIRO_TEST_DOUBLE_EQUALS(a[i],b[i])) { + cairo_test_log (ctx, "Error: doubles not equal: %g, %g\n", + a[i], b[i]); + return 0; + } + } + return 1; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_status_t status; + cairo_pattern_t *pat; + + /* Test pattern_get_rgba */ + { + double r, g, b, a; + pat = cairo_pattern_create_rgba (0.2, 0.3, 0.4, 0.5); + + status = cairo_pattern_get_rgba (pat, &r, &g, &b, &a); + CHECK_SUCCESS; + + if (!CAIRO_TEST_DOUBLE_EQUALS(r,0.2) || + !CAIRO_TEST_DOUBLE_EQUALS(g,0.3) || + !CAIRO_TEST_DOUBLE_EQUALS(b,0.4) || + !CAIRO_TEST_DOUBLE_EQUALS(a,0.5)) { + cairo_test_log (ctx, "Error: cairo_pattern_get_rgba returned unexpected results: %g, %g, %g, %g\n", + r, g, b, a); + cairo_pattern_destroy (pat); + return CAIRO_TEST_FAILURE; + } + + cairo_pattern_destroy (pat); + } + + /* Test pattern_get_surface */ + { + cairo_surface_t *surf; + + pat = cairo_pattern_create_for_surface (cairo_get_target (cr)); + + status = cairo_pattern_get_surface (pat, &surf); + CHECK_SUCCESS; + + if (surf != cairo_get_target (cr)) { + cairo_test_log (ctx, "Error: cairo_pattern_get_resurface returned wrong surface\n"); + cairo_pattern_destroy (pat); + return CAIRO_TEST_FAILURE; + } + + cairo_pattern_destroy (pat); + } + + /* Test get_color_stops & linear_get_points */ + { + int i; + double x0, y0, x1, y1; + double expected_values[15] = { 0.0, 0.2, 0.4, 0.2, 1.0, + 0.5, 0.4, 0.5, 0.2, 0.5, + 1.0, 0.2, 0.4, 0.5, 0.2 }; + double new_buf[15]; + + pat = cairo_pattern_create_linear (1.0, 2.0, 3.0, 4.0); + + for (i = 0; i < 3; i++) { + cairo_pattern_add_color_stop_rgba (pat, + expected_values[i*5+0], + expected_values[i*5+1], + expected_values[i*5+2], + expected_values[i*5+3], + expected_values[i*5+4]); + } + + status = cairo_pattern_get_linear_points (pat, &x0, &y0, &x1, &y1); + CHECK_SUCCESS; + + if (!CAIRO_TEST_DOUBLE_EQUALS(x0,1.0) || + !CAIRO_TEST_DOUBLE_EQUALS(y0,2.0) || + !CAIRO_TEST_DOUBLE_EQUALS(x1,3.0) || + !CAIRO_TEST_DOUBLE_EQUALS(y1,4.0)) + { + cairo_pattern_destroy (pat); + return CAIRO_TEST_FAILURE; + } + + status = cairo_pattern_get_color_stop_count (pat, &i); + CHECK_SUCCESS; + + if (i != 3) { + cairo_pattern_destroy (pat); + return CAIRO_TEST_FAILURE; + } + + for (i = 0; i < 3; i++) { + status = cairo_pattern_get_color_stop_rgba (pat, i, + &new_buf[i*5+0], + &new_buf[i*5+1], + &new_buf[i*5+2], + &new_buf[i*5+3], + &new_buf[i*5+4]); + CHECK_SUCCESS; + } + + status = cairo_pattern_get_color_stop_rgba (pat, 5, NULL, NULL, NULL, NULL, NULL); + if (status != CAIRO_STATUS_INVALID_INDEX) { + cairo_pattern_destroy (pat); + return CAIRO_TEST_FAILURE; + } + + if (!double_buf_equal (ctx, new_buf, expected_values, + ARRAY_LENGTH (expected_values))) + { + cairo_pattern_destroy (pat); + return CAIRO_TEST_FAILURE; + } + + cairo_pattern_destroy (pat); + } + + /* Test radial_get_circles */ + { + double a, b, c, d, e, f; + pat = cairo_pattern_create_radial (1, 2, 3, + 4, 5, 6); + + status = cairo_pattern_get_radial_circles (pat, &a, &b, &c, &d, &e, &f); + CHECK_SUCCESS; + + if (!CAIRO_TEST_DOUBLE_EQUALS(a,1.0) || + !CAIRO_TEST_DOUBLE_EQUALS(b,2.0) || + !CAIRO_TEST_DOUBLE_EQUALS(c,3.0) || + !CAIRO_TEST_DOUBLE_EQUALS(d,4.0) || + !CAIRO_TEST_DOUBLE_EQUALS(e,5.0) || + !CAIRO_TEST_DOUBLE_EQUALS(f,6.0)) + { + cairo_pattern_destroy (pat); + return CAIRO_TEST_FAILURE; + } + + cairo_pattern_destroy (pat); + } + + /* Test mesh getters */ + { + unsigned int count; + int i; + pat = cairo_pattern_create_mesh (); + + status = cairo_mesh_pattern_get_patch_count (pat, &count); + CHECK_SUCCESS; + + if (count != 0) { + cairo_pattern_destroy (pat); + return CAIRO_TEST_FAILURE; + } + + cairo_mesh_pattern_begin_patch (pat); + cairo_mesh_pattern_move_to (pat, 0, 0); + cairo_mesh_pattern_line_to (pat, 0, 3); + cairo_mesh_pattern_line_to (pat, 3, 3); + cairo_mesh_pattern_line_to (pat, 3, 0); + + status = cairo_mesh_pattern_get_patch_count (pat, &count); + CHECK_SUCCESS; + + if (count != 0) { + cairo_pattern_destroy (pat); + return CAIRO_TEST_FAILURE; + } + + cairo_mesh_pattern_end_patch (pat); + + status = cairo_mesh_pattern_get_patch_count (pat, &count); + CHECK_SUCCESS; + + if (count != 1) { + cairo_pattern_destroy (pat); + return CAIRO_TEST_FAILURE; + } + + for (i = 0; i < 4; i++) { + double cp_x[4] = { 1, 1, 2, 2 }; + double cp_y[4] = { 1, 2, 2, 1 }; + double x, y; + + status = cairo_mesh_pattern_get_control_point (pat, 0, i, &x, &y); + CHECK_SUCCESS; + + if (!CAIRO_TEST_DOUBLE_EQUALS(x,cp_x[i]) || + !CAIRO_TEST_DOUBLE_EQUALS(y,cp_y[i])) + { + cairo_pattern_destroy (pat); + return CAIRO_TEST_FAILURE; + } + } + + cairo_mesh_pattern_begin_patch (pat); + cairo_mesh_pattern_move_to (pat, 0, 0); + cairo_mesh_pattern_line_to (pat, 1, 0); + cairo_mesh_pattern_line_to (pat, 1, 1); + cairo_mesh_pattern_set_corner_color_rgb (pat, 0, 1, 1, 1); + cairo_mesh_pattern_end_patch (pat); + + for (i = 0; i < 4; i++) { + double corner_color[4] = { 1, 0, 0, 1 }; + double a, r, g, b; + + status = cairo_mesh_pattern_get_corner_color_rgba (pat, 1, i, + &r, &g, &b, &a); + CHECK_SUCCESS; + + if (!CAIRO_TEST_DOUBLE_EQUALS(a,corner_color[i]) || + !CAIRO_TEST_DOUBLE_EQUALS(r,corner_color[i]) || + !CAIRO_TEST_DOUBLE_EQUALS(g,corner_color[i]) || + !CAIRO_TEST_DOUBLE_EQUALS(b,corner_color[i])) + { + cairo_pattern_destroy (pat); + return CAIRO_TEST_FAILURE; + } + } + + cairo_pattern_destroy (pat); + } + + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (pattern_getters, + "Tests calls to pattern getter functions", + "pattern, api", /* keywords */ + NULL, /* requirements */ + 1, 1, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/pdf-features.c b/local/recipes/libs/cairo/source/test/pdf-features.c new file mode 100644 index 0000000000..b304cc2dc1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdf-features.c @@ -0,0 +1,149 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#include +#include +#include + +/* This test exists to test the various features of cairo-pdf.h. + * + * Currently, this test exercises the following function calls: + * + * cairo_pdf_surface_set_size + */ + +#define INCHES_TO_POINTS(in) ((in) * 72.0) +#define MM_TO_POINTS(mm) ((mm) / 25.4 * 72.0) +#define TEXT_SIZE 12 +#define BASENAME "pdf-features.out" + +static struct { + const char *page_size; + const char *page_size_alias; + const char *orientation; + double width_in_points; + double height_in_points; +} pages[] = { + {"na_letter_8.5x11in", "letter", "portrait", + INCHES_TO_POINTS(8.5), INCHES_TO_POINTS(11)}, + {"na_letter_8.5x11in", "letter", "landscape", + INCHES_TO_POINTS(11), INCHES_TO_POINTS(8.5)}, + {"iso_a4_210x297mm", "a4", "portrait", + MM_TO_POINTS(210), MM_TO_POINTS(297)}, + {"iso_a4_210x297mm", "a4", "landscape", + MM_TO_POINTS(297), MM_TO_POINTS(210)}, + {"iso_a5_148x210mm", "a5", "portrait", + MM_TO_POINTS(148), MM_TO_POINTS(210)}, + {"iso_a5_148x210mm", "a5", "landscape", + MM_TO_POINTS(210), MM_TO_POINTS(148)}, + {"iso_a6_105x148mm", "a6", "portrait", + MM_TO_POINTS(105), MM_TO_POINTS(148)}, + {"iso_a6_105x148mm", "a6", "landscape", + MM_TO_POINTS(148), MM_TO_POINTS(105)}, + {"iso_a7_74x105mm", "a7", "portrait", + MM_TO_POINTS(74), MM_TO_POINTS(105)}, + {"iso_a7_74x105mm", "a7", "landscape", + MM_TO_POINTS(105), MM_TO_POINTS(74)}, + {"iso_a8_52x74mm", "a8", "portrait", + MM_TO_POINTS(52), MM_TO_POINTS(74)}, + {"iso_a8_52x74mm", "a8", "landscape", + MM_TO_POINTS(74), MM_TO_POINTS(52)}, + {"iso_a9_37x52mm", "a9", "portrait", + MM_TO_POINTS(37), MM_TO_POINTS(52)}, + {"iso_a9_37x52mm", "a9", "landscape", + MM_TO_POINTS(52), MM_TO_POINTS(37)}, + {"iso_a10_26x37mm", "a10", "portrait", + MM_TO_POINTS(26), MM_TO_POINTS(37)}, + {"iso_a10_26x37mm", "a10", "landscape", + MM_TO_POINTS(37), MM_TO_POINTS(26)} +}; + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_surface_t *surface; + cairo_t *cr; + cairo_status_t status; + size_t i; + char *filename; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + + if (! cairo_test_is_target_enabled (ctx, "pdf")) + return CAIRO_TEST_UNTESTED; + + xasprintf (&filename, "%s/%s.pdf", path, BASENAME); + + /* The initial size passed here is the default size that will be + * inheritable by each page. That is, any page for which this + * initial size applies will not have its own /MediaBox entry in + * its dictionary. */ + surface = cairo_pdf_surface_create (filename, + INCHES_TO_POINTS(8.5), + INCHES_TO_POINTS(11)); + + cr = cairo_create (surface); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + + for (i = 0; i < ARRAY_LENGTH (pages); i++) { + cairo_pdf_surface_set_size (surface, + pages[i].width_in_points, + pages[i].height_in_points); + + cairo_move_to (cr, TEXT_SIZE, TEXT_SIZE); + cairo_show_text (cr, pages[i].page_size); + cairo_show_text (cr, " - "); + cairo_show_text (cr, pages[i].orientation); + cairo_show_page (cr); + } + + status = cairo_status (cr); + + cairo_destroy (cr); + cairo_surface_destroy (surface); + + if (status) { + cairo_test_log (ctx, "Failed to create pdf surface for file %s: %s\n", + filename, cairo_status_to_string (status)); + free (filename); + return CAIRO_TEST_FAILURE; + } + + printf ("pdf-features: Please check %s to ensure it looks/prints correctly.\n", filename); + free (filename); + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (pdf_features, + "Check PDF specific API", + "pdf", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/pdf-isolated-group.c b/local/recipes/libs/cairo/source/test/pdf-isolated-group.c new file mode 100644 index 0000000000..e74a346a28 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdf-isolated-group.c @@ -0,0 +1,73 @@ +/* + * Copyright © 2012 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#define SIZE 60 +#define WIDTH SIZE +#define HEIGHT SIZE + + +/* PDF transparency groups can be isolated or non-isolated. This test + * checks that the PDF output is using isolated groups. If the group + * is non-isolated the bottom half of the inner rectangle will be + * red. Note poppler-cairo currently ignores the isolated flag and + * treats the group as isolated. + * + * Refer to http://www.pdfvt.com/PDFVT_TransparencyGuide.html for an + * explanation isolated vs non-isolated. + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 1, 0.5, 0); + cairo_rectangle (cr, 0, SIZE/2, SIZE, SIZE/2); + cairo_fill (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_MULTIPLY); + + cairo_push_group (cr); + + cairo_set_source_rgb (cr, 0.7, 0.7, 0.7); + cairo_rectangle (cr, SIZE/4, SIZE/4, SIZE/2, SIZE/2); + cairo_fill (cr); + + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (pdf_isolated_group, + "Check that transparency groups in PDF output are isolated", + "group, operator", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/pdf-mime-data.c b/local/recipes/libs/cairo/source/test/pdf-mime-data.c new file mode 100644 index 0000000000..5052f3dac9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdf-mime-data.c @@ -0,0 +1,193 @@ +/* + * Copyright © 2008 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#include +#include +#include +#include + +/* This test checks that the mime data is correctly used by the PDF + * surface when embedding images.. + */ + +/* Both a *.png and *.jpg file with this name is required since we + * are not using a jpeg library */ +#define IMAGE_FILE "romedalen" + +#define BASENAME "pdf-mime-data.out" + +static cairo_test_status_t +read_file (const cairo_test_context_t *ctx, + const char *file, + unsigned char **data, + unsigned int *len) +{ + FILE *fp; + + fp = fopen (file, "rb"); + if (fp == NULL) { + char filename[4096]; + + /* try again with srcdir */ + snprintf (filename, sizeof (filename), + "%s/%s", ctx->srcdir, file); + fp = fopen (filename, "rb"); + } + if (fp == NULL) { + switch (errno) { + case ENOMEM: + cairo_test_log (ctx, "Could not create file handle for %s due to \ + lack of memory\n", file); + return CAIRO_TEST_NO_MEMORY; + default: + cairo_test_log (ctx, "Could not get the file handle for %s\n", file); + return CAIRO_TEST_FAILURE; + } + } + + fseek (fp, 0, SEEK_END); + *len = ftell(fp); + fseek (fp, 0, SEEK_SET); + *data = malloc (*len); + if (*data == NULL) { + fclose(fp); + cairo_test_log (ctx, "Could not allocate memory for buffer to read \ + from file %s\n", file); + return CAIRO_TEST_NO_MEMORY; + } + + if (fread(*data, *len, 1, fp) != 1) { + free (*data); + fclose(fp); + cairo_test_log (ctx, "Could not read data from file %s\n", file); + return CAIRO_TEST_FAILURE; + } + + fclose(fp); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_surface_t *image; + cairo_surface_t *surface; + cairo_t *cr; + cairo_status_t status, status2; + cairo_test_status_t test_status; + int width, height; + unsigned char *data; + unsigned char *out_data; + unsigned int len, out_len; + char command[4096]; + int exit_status; + char *filename; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + + if (! cairo_test_is_target_enabled (ctx, "pdf")) + return CAIRO_TEST_UNTESTED; + + exit_status = system ("command -v pdfimages"); + if (exit_status) { + cairo_test_log (ctx, "pdfimages not available\n"); + return CAIRO_TEST_UNTESTED; + } + + image = cairo_test_create_surface_from_png (ctx, IMAGE_FILE ".png"); + test_status = read_file (ctx, IMAGE_FILE ".jpg", &data, &len); + if (test_status) { + return test_status; + } + + cairo_surface_set_mime_data (image, CAIRO_MIME_TYPE_JPEG, + data, len, + free, data); + width = cairo_image_surface_get_width (image); + height = cairo_image_surface_get_height (image); + + xasprintf (&filename, "%s/%s.pdf", path, BASENAME); + surface = cairo_pdf_surface_create (filename, width + 20, height + 20); + cr = cairo_create (surface); + cairo_translate (cr, 10, 10); + cairo_set_source_surface (cr, image, 0, 0); + cairo_paint (cr); + status = cairo_status (cr); + cairo_destroy (cr); + cairo_surface_finish (surface); + status2 = cairo_surface_status (surface); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + cairo_surface_destroy (surface); + cairo_surface_destroy (image); + + if (status) { + cairo_test_log (ctx, "Failed to create pdf surface for file %s: %s\n", + filename, cairo_status_to_string (status)); + free (filename); + return CAIRO_TEST_FAILURE; + } + + printf ("pdf-mime-data: Please check %s to ensure it looks/prints correctly.\n", filename); + + sprintf (command, "pdfimages -j %s %s", filename, CAIRO_TEST_OUTPUT_DIR "/" BASENAME); + exit_status = system (command); + free (filename); + if (exit_status) { + cairo_test_log (ctx, "pdfimages failed with exit status %d\n", exit_status); + return CAIRO_TEST_FAILURE; + } + + test_status = read_file (ctx, IMAGE_FILE ".jpg", &data, &len); + if (test_status) { + return test_status; + } + + test_status = read_file (ctx, CAIRO_TEST_OUTPUT_DIR "/" BASENAME "-000.jpg", &out_data, &out_len); + if (test_status) { + return test_status; + } + + if (len != out_len || memcmp(data, out_data, len) != 0) { + free (data); + free (out_data); + cairo_test_log (ctx, "output mime data does not match source mime data\n"); + return CAIRO_TEST_FAILURE; + } + + free (data); + free (out_data); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (pdf_mime_data, + "Check mime data correctly used by PDF surface", + "pdf, mime-data", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/pdf-operators-text.c b/local/recipes/libs/cairo/source/test/pdf-operators-text.c new file mode 100644 index 0000000000..6d654d1158 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdf-operators-text.c @@ -0,0 +1,158 @@ +/* + * Copyright © 2021 Adrian Johnson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Adrian Johnson + */ + +/* Test pdf-operators text positioning. This test is designed to expose rounding + * errors in the PDF operations for relative positioning in very long strings. + * + * The text width is expected to match the width of the rectangle + * enclosing the text. + */ + +#include "cairo-test.h" + +#define WIDTH 10000 +#define HEIGHT 60 + +/* Using a non integer size helps expose rounding errors */ +#define FONT_SIZE 10.12345678912345 + +#define WORD "Text" +#define NUM_WORDS 450 + +#define BORDER 10 + +static cairo_user_data_key_t font_face_key; + +static cairo_status_t +user_font_init (cairo_scaled_font_t *scaled_font, + cairo_t *cr, + cairo_font_extents_t *metrics) +{ + cairo_font_face_t *font_face = cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font), + &font_face_key); + cairo_set_font_face (cr, font_face); + cairo_font_extents (cr, metrics); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +user_font_render_glyph (cairo_scaled_font_t *scaled_font, + unsigned long index, + cairo_t *cr, + cairo_text_extents_t *metrics) +{ + char text[2]; + cairo_font_face_t *font_face = cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font), + &font_face_key); + + text[0] = index; /* Only using ASCII for this test */ + text[1] = 0; + cairo_set_font_face (cr, font_face); + cairo_text_extents (cr, text, metrics); + cairo_text_path (cr, text); + cairo_fill (cr); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_font_face_t * +create_user_font_face (cairo_font_face_t *orig_font) +{ + cairo_font_face_t *user_font_face; + + user_font_face = cairo_user_font_face_create (); + cairo_user_font_face_set_init_func (user_font_face, user_font_init); + cairo_user_font_face_set_render_glyph_func (user_font_face, user_font_render_glyph); + cairo_font_face_set_user_data (user_font_face, &font_face_key, (void*) orig_font, NULL); + return user_font_face; +} + +static void +draw_text (cairo_t *cr, const char *text) +{ + cairo_text_extents_t extents; + + cairo_move_to (cr, BORDER, BORDER); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_show_text (cr, text); + cairo_text_extents (cr, text,&extents); + + cairo_rectangle (cr, + BORDER + extents.x_bearing, + BORDER + extents.y_bearing, + extents.width, + extents.height); + cairo_set_line_width (cr, 1); + cairo_stroke (cr); +} + + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + char *text; + cairo_font_face_t *font_face; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_select_font_face (cr, "Dejavu Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + cairo_set_font_size (cr, FONT_SIZE); + + text = malloc (strlen(WORD) * NUM_WORDS + 1); + text[0] = '\0'; + for (i = 0; i < NUM_WORDS; i++) + strcat (text, WORD); + + cairo_save (cr); + cairo_translate (cr, BORDER, BORDER); + draw_text (cr, text); + cairo_restore (cr); + + font_face = create_user_font_face (cairo_get_font_face (cr)); + cairo_set_font_face (cr, font_face); + cairo_font_face_destroy (font_face); + cairo_set_font_size (cr, FONT_SIZE); + + cairo_save (cr); + cairo_translate (cr, BORDER, BORDER*3); + draw_text (cr, text); + cairo_restore (cr); + + free (text); + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (pdf_operators_text, + "Test pdf-operators.c glyph positioning", + "pdf", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/pdf-structure.c b/local/recipes/libs/cairo/source/test/pdf-structure.c new file mode 100644 index 0000000000..a12d0305f8 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdf-structure.c @@ -0,0 +1,621 @@ +/* + * Copyright © 2023 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#include +#include +#include + +#ifdef HAVE_UNISTD_H +#include /* __unix__ */ +#endif +#if HAVE_SYS_WAIT_H +#include +#endif + +#include +#include + +/* Test PDF logical structure + */ + +#define BASENAME "pdf-structure" + +#define PAGE_WIDTH 595 +#define PAGE_HEIGHT 842 + +#define PDF_VERSION CAIRO_PDF_VERSION_1_4 + +struct pdf_structure_test { + const char *name; + void (*func)(cairo_t *cr); +}; + +static void +text(cairo_t *cr, const char *text) +{ + double x, y; + + cairo_show_text (cr, text); + cairo_get_current_point (cr, &x, &y); + cairo_move_to (cr, 20, y + 15); +} + +static void +test_simple (cairo_t *cr) +{ + cairo_tag_begin (cr, "Document", NULL); + + cairo_tag_begin (cr, "H", ""); + text (cr, "Heading"); + cairo_tag_end (cr, "H"); + + cairo_tag_begin (cr, "Sect", NULL); + + cairo_tag_begin (cr, "P", ""); + text (cr, "Para1"); + text (cr, "Para2"); + cairo_tag_end (cr, "P"); + + cairo_tag_begin (cr, "P", ""); + text (cr, "Para3"); + + cairo_tag_begin (cr, "Note", ""); + text (cr, "Note"); + cairo_tag_end (cr, "Note"); + + text (cr, "Para4"); + cairo_tag_end (cr, "P"); + + cairo_tag_end (cr, "Sect"); + + cairo_tag_end (cr, "Document"); +} + +static void +test_simple_ref (cairo_t *cr) +{ + cairo_tag_begin (cr, CAIRO_TAG_CONTENT, "tag_name='H' id='heading'"); + text (cr, "Heading"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT); + + cairo_tag_begin (cr, CAIRO_TAG_CONTENT, "tag_name='P' id='para1'"); + text (cr, "Para1"); + text (cr, "Para2"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT); + + cairo_tag_begin (cr, CAIRO_TAG_CONTENT, "tag_name='P' id='para2'"); + text (cr, "Para3"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT); + + cairo_tag_begin (cr, CAIRO_TAG_CONTENT, "tag_name='Note' id='note'"); + text (cr, "Note"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT); + + cairo_tag_begin (cr, CAIRO_TAG_CONTENT, "tag_name='P' id='para3'"); + text (cr, "Para4"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT); + + cairo_tag_begin (cr, "Document", NULL); + + cairo_tag_begin (cr, "H", ""); + cairo_tag_begin (cr, CAIRO_TAG_CONTENT_REF, "ref='heading'"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT_REF); + cairo_tag_end (cr, "H"); + + cairo_tag_begin (cr, "Sect", NULL); + + cairo_tag_begin (cr, "P", ""); + cairo_tag_begin (cr, CAIRO_TAG_CONTENT_REF, "ref='para1'"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT_REF); + cairo_tag_end (cr, "P"); + + cairo_tag_begin (cr, "P", ""); + + cairo_tag_begin (cr, CAIRO_TAG_CONTENT_REF, "ref='para2'"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT_REF); + + cairo_tag_begin (cr, "Note", ""); + cairo_tag_begin (cr, CAIRO_TAG_CONTENT_REF, "ref='note'"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT_REF); + cairo_tag_end (cr, "Note"); + + cairo_tag_begin (cr, CAIRO_TAG_CONTENT_REF, "ref='para3'"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT_REF); + + cairo_tag_end (cr, "P"); + + cairo_tag_end (cr, "Sect"); + + cairo_tag_end (cr, "Document"); +} + +static void +test_group (cairo_t *cr) +{ + cairo_tag_begin (cr, "Document", NULL); + + cairo_tag_begin (cr, "H", ""); + text (cr, "Heading"); + cairo_tag_end (cr, "H"); + + cairo_tag_begin (cr, "Sect", NULL); + + cairo_push_group (cr); + + cairo_tag_begin (cr, "P", ""); + text (cr, "Para1"); + text (cr, "Para2"); + cairo_tag_end (cr, "P"); + + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + cairo_tag_end (cr, "Sect"); + + cairo_tag_end (cr, "Document"); +} + +/* https://bugzilla.mozilla.org/show_bug.cgi?id=1896173 + * This particular combination of tags and groups resulted in a crash. + */ +static void +test_group2 (cairo_t *cr) +{ + cairo_tag_begin (cr, "H", ""); + text (cr, "Heading"); + cairo_tag_end (cr, "H"); + + cairo_push_group (cr); + + cairo_tag_begin (cr, "P", ""); + text (cr, "Para1"); + cairo_tag_end (cr, "P"); + + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + text (cr, "text"); +} + +/* Check that the fix for test_group2() works when there is a top level tag. */ +static void +test_group3 (cairo_t *cr) +{ + cairo_tag_begin (cr, "Document", NULL); + + cairo_tag_begin (cr, "H", ""); + text (cr, "Heading"); + cairo_tag_end (cr, "H"); + + cairo_push_group (cr); + + cairo_tag_begin (cr, "P", ""); + text (cr, "Para1"); + cairo_tag_end (cr, "P"); + + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + text (cr, "text"); + + cairo_tag_end (cr, "Document"); +} + +static void +test_group_ref (cairo_t *cr) +{ + cairo_tag_begin (cr, CAIRO_TAG_CONTENT, "tag_name='H' id='heading'"); + text (cr, "Heading"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT); + + cairo_push_group (cr); + + cairo_tag_begin (cr, CAIRO_TAG_CONTENT, "tag_name='P' id='para'"); + text (cr, "Para1"); + text (cr, "Para2"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT); + + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + cairo_tag_begin (cr, "Document", NULL); + + cairo_tag_begin (cr, "H", ""); + cairo_tag_begin (cr, CAIRO_TAG_CONTENT_REF, "ref='heading'"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT_REF); + cairo_tag_end (cr, "H"); + + cairo_tag_begin (cr, "Sect", NULL); + + cairo_tag_begin (cr, "P", ""); + cairo_tag_begin (cr, CAIRO_TAG_CONTENT_REF, "ref='para'"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT_REF); + cairo_tag_end (cr, "P"); + + cairo_tag_end (cr, "Sect"); + + cairo_tag_end (cr, "Document"); + +} + +static void +test_repeated_group (cairo_t *cr) +{ + cairo_pattern_t *pat; + + cairo_tag_begin (cr, "Document", NULL); + + cairo_tag_begin (cr, "H", ""); + text (cr, "Heading"); + cairo_tag_end (cr, "H"); + + cairo_tag_begin (cr, "Sect", NULL); + + cairo_push_group (cr); + + cairo_tag_begin (cr, "P", ""); + text (cr, "Para1"); + text (cr, "Para2"); + cairo_tag_end (cr, "P"); + + pat = cairo_pop_group (cr); + + cairo_set_source (cr, pat); + cairo_paint (cr); + + cairo_translate (cr, 0, 100); + cairo_set_source (cr, pat); + cairo_rectangle (cr, 0, 0, 100, 100); + cairo_fill (cr); + + cairo_translate (cr, 0, 100); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_mask (cr, pat); + + cairo_translate (cr, 0, 100); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_move_to (cr, 20, 0); + cairo_line_to (cr, 100, 0); + cairo_stroke (cr); + + cairo_translate (cr, 0, 100); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_move_to (cr, 20, 0); + cairo_show_text (cr, "Text"); + + cairo_tag_end (cr, "Sect"); + + cairo_tag_end (cr, "Document"); +} + +static void +test_multipage_simple (cairo_t *cr) +{ + cairo_tag_begin (cr, "Document", NULL); + + cairo_tag_begin (cr, "H", ""); + + cairo_tag_begin (cr, CAIRO_TAG_LINK, "dest='para1-dest'"); + text (cr, "Heading1"); + cairo_tag_end (cr, CAIRO_TAG_LINK); + + cairo_tag_begin (cr, CAIRO_TAG_LINK, "dest='para2-dest'"); + text (cr, "Heading2"); + cairo_tag_end (cr, CAIRO_TAG_LINK); + + cairo_tag_end (cr, "H"); + + cairo_tag_begin (cr, "Sect", NULL); + + cairo_show_page (cr); + + cairo_tag_begin (cr, "P", ""); + + cairo_tag_begin (cr, CAIRO_TAG_DEST, "name='para1-dest' internal"); + text (cr, "Para1"); + cairo_tag_end (cr, CAIRO_TAG_DEST); + + cairo_show_page (cr); + + cairo_tag_begin (cr, CAIRO_TAG_DEST, "name='para2-dest' internal"); + text (cr, "Para2"); + cairo_tag_end (cr, CAIRO_TAG_DEST); + + cairo_tag_end (cr, "P"); + + cairo_tag_end (cr, "Sect"); + + cairo_tag_end (cr, "Document"); +} + +static void +test_multipage_simple_ref (cairo_t *cr) +{ + cairo_tag_begin (cr, CAIRO_TAG_CONTENT, "tag_name='H' id='heading1'"); + text (cr, "Heading1"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT); + + cairo_tag_begin (cr, CAIRO_TAG_CONTENT, "tag_name='H' id='heading2'"); + text (cr, "Heading2"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT); + + cairo_show_page (cr); + + cairo_tag_begin (cr, CAIRO_TAG_DEST, "name='para1-dest' internal"); + cairo_tag_begin (cr, CAIRO_TAG_CONTENT, "tag_name='P' id='para1'"); + text (cr, "Para1"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT); + cairo_tag_end (cr, CAIRO_TAG_DEST); + + cairo_show_page (cr); + + cairo_tag_begin (cr, CAIRO_TAG_DEST, "name='para2-dest' internal"); + cairo_tag_begin (cr, CAIRO_TAG_CONTENT, "tag_name='P' id='para2'"); + text (cr, "Para2"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT); + cairo_tag_end (cr, CAIRO_TAG_DEST); + + cairo_tag_begin (cr, "Document", NULL); + + cairo_tag_begin (cr, "H", ""); + + cairo_tag_begin (cr, CAIRO_TAG_LINK, "dest='para1-dest' link_page=1"); + cairo_tag_begin (cr, CAIRO_TAG_CONTENT_REF, "ref='heading1'"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT_REF); + cairo_tag_end (cr, CAIRO_TAG_LINK); + + cairo_tag_begin (cr, CAIRO_TAG_LINK, "dest='para2-dest' link_page=1"); + cairo_tag_begin (cr, CAIRO_TAG_CONTENT_REF, "ref='heading2'"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT_REF); + cairo_tag_end (cr, CAIRO_TAG_LINK); + + cairo_tag_end (cr, "H"); + + cairo_tag_begin (cr, "Sect", NULL); + + cairo_tag_begin (cr, "P", ""); + cairo_tag_begin (cr, CAIRO_TAG_CONTENT_REF, "ref='para1'"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT_REF); + cairo_tag_begin (cr, CAIRO_TAG_CONTENT_REF, "ref='para2'"); + cairo_tag_end (cr, CAIRO_TAG_CONTENT_REF); + cairo_tag_end (cr, "P"); + + cairo_tag_end (cr, "Sect"); + + cairo_tag_end (cr, "Document"); +} + +static void +test_multipage_group (cairo_t *cr) +{ + cairo_tag_begin (cr, "Document", NULL); + + cairo_tag_begin (cr, "H", ""); + text (cr, "Heading"); + cairo_tag_end (cr, "H"); + + cairo_tag_begin (cr, "Sect", NULL); + + cairo_push_group (cr); + + cairo_tag_begin (cr, "P", ""); + text (cr, "Para1"); + text (cr, "Para2"); + cairo_tag_end (cr, "P"); + + cairo_pop_group_to_source (cr); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_show_page (cr); + + cairo_tag_begin (cr, "P", ""); + text (cr, "Para3"); + cairo_tag_end (cr, "P"); + + cairo_tag_end (cr, "Sect"); + + cairo_tag_end (cr, "Document"); +} + +/* Same as test_multipage_group but but repeat the group on the second page. */ +static void +test_multipage_group2 (cairo_t *cr) +{ + cairo_tag_begin (cr, "Document", NULL); + + cairo_tag_begin (cr, "H", ""); + text (cr, "Heading"); + cairo_tag_end (cr, "H"); + + cairo_tag_begin (cr, "Sect", NULL); + + cairo_push_group (cr); + + cairo_tag_begin (cr, "P", ""); + text (cr, "Para1"); + text (cr, "Para2"); + cairo_tag_end (cr, "P"); + + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + cairo_show_page (cr); + + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_tag_begin (cr, "P", ""); + text (cr, "Para3"); + cairo_tag_end (cr, "P"); + + cairo_tag_end (cr, "Sect"); + + cairo_tag_end (cr, "Document"); +} + +static const struct pdf_structure_test pdf_structure_tests[] = { + { "simple", test_simple }, + { "simple-ref", test_simple_ref }, + { "group", test_group }, + { "group2", test_group2 }, + { "group3", test_group3 }, + { "group-ref", test_group_ref }, + { "repeated-group", test_repeated_group }, + { "multipage-simple", test_multipage_simple }, + { "multipage-simple-ref", test_multipage_simple_ref }, + { "multipage-group", test_multipage_group }, + { "multipage-group2", test_multipage_group2 }, +}; + +static cairo_test_status_t +create_pdf (cairo_test_context_t *ctx, const struct pdf_structure_test *test, const char *output) +{ + cairo_surface_t *surface; + cairo_t *cr; + cairo_status_t status, status2; + + surface = cairo_pdf_surface_create (output, PAGE_WIDTH, PAGE_HEIGHT); + + cairo_pdf_surface_restrict_to_version (surface, PDF_VERSION); + + cr = cairo_create (surface); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Serif", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, 10); + cairo_move_to (cr, 20, 20); + + test->func(cr); + + status = cairo_status (cr); + cairo_destroy (cr); + cairo_surface_finish (surface); + status2 = cairo_surface_status (surface); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + + cairo_surface_destroy (surface); + if (status) { + cairo_test_log (ctx, "Failed to create pdf surface for file %s: %s\n", + output, cairo_status_to_string (status)); + return CAIRO_TEST_FAILURE; + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +check_pdf (cairo_test_context_t *ctx, const struct pdf_structure_test *test, const char *output) +{ + char *command; + int ret; + cairo_test_status_t result = CAIRO_TEST_FAILURE; + + /* check-pdf-structure.sh */ + xasprintf (&command, + "%s/check-pdf-structure.sh %s %s/%s-%s.out.txt %s/%s-%s.ref.txt %s/%s-%s.diff.txt ", + ctx->srcdir, + output, + ctx->output, BASENAME, test->name, + ctx->refdir, BASENAME, test->name, + ctx->output, BASENAME, test->name); + + ret = system (command); + cairo_test_log (ctx, "%s exit code %d\n", command, + WIFEXITED (ret) ? WEXITSTATUS (ret) : -1); + + if (WIFEXITED (ret)) { + if (WEXITSTATUS (ret) == 0) + result = CAIRO_TEST_SUCCESS; + else if (WEXITSTATUS (ret) == 4) + result = CAIRO_TEST_UNTESTED; /* pdfinfo not found or wrong version */ + } + + free (command); + return result; +} + +static void +merge_test_status (cairo_test_status_t *current, cairo_test_status_t new) +{ + if (new == CAIRO_TEST_FAILURE || *current == CAIRO_TEST_FAILURE) + *current = CAIRO_TEST_FAILURE; + else if (new == CAIRO_TEST_UNTESTED) + *current = CAIRO_TEST_UNTESTED; + else + *current = new; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + int i; + char *filename; + cairo_test_status_t result, all_results; + cairo_bool_t can_check = FALSE; + +/* Need a POSIX shell to run the check. */ +#ifdef __unix__ + can_check = TRUE; +#endif + + all_results = CAIRO_TEST_SUCCESS; + if (! cairo_test_is_target_enabled (ctx, "pdf")) + return CAIRO_TEST_UNTESTED; + + for (i = 0; i < ARRAY_LENGTH(pdf_structure_tests); i++) { + xasprintf (&filename, "%s/%s-%s.out.pdf", + ctx->output, + BASENAME, + pdf_structure_tests[i].name); + + result = create_pdf (ctx, &pdf_structure_tests[i], filename); + merge_test_status (&all_results, result); + + if (can_check && result == CAIRO_TEST_SUCCESS) { + result = check_pdf (ctx, &pdf_structure_tests[i], filename); + merge_test_status (&all_results, result); + } else { + merge_test_status (&all_results, CAIRO_TEST_UNTESTED); + } + } + + free (filename); + return all_results; +} + +CAIRO_TEST (pdf_structure, + "Check PDF Structure", + "pdf", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/pdf-surface-source.c b/local/recipes/libs/cairo/source/test/pdf-surface-source.c new file mode 100644 index 0000000000..354a7259a4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdf-surface-source.c @@ -0,0 +1,53 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" +#include + +#include "surface-source.c" + +#define BASENAME "pdf-surface-source.out" + +static cairo_surface_t * +create_source_surface (int size) +{ + cairo_surface_t *surface; + char *filename; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + + xasprintf (&filename, "%s/%s.pdf", path, BASENAME); + surface = cairo_pdf_surface_create (filename, size, size); + cairo_surface_set_fallback_resolution (surface, 72., 72.); + free (filename); + + return surface; +} + +CAIRO_TEST (pdf_surface_source, + "Test using a PDF surface as the source", + "source", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + preamble, draw) diff --git a/local/recipes/libs/cairo/source/test/pdf-tagged-text.c b/local/recipes/libs/cairo/source/test/pdf-tagged-text.c new file mode 100644 index 0000000000..094b1c8b0b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdf-tagged-text.c @@ -0,0 +1,677 @@ +/* + * Copyright © 2016 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#include +#include +#include +#include +#include +#include + +#if HAVE_UNISTD_H +#include +#endif + +#ifdef HAVE_MMAP +#include +#endif + +#include + +#if CAIRO_HAS_PDF_SURFACE + +#include + +/* This test checks PDF with + * - tagged text + * - hyperlinks + * - document outline + * - metadata + * - thumbnails + * - page labels + */ + +#define BASENAME "pdf-tagged-text.out" + +#define PAGE_WIDTH 595 +#define PAGE_HEIGHT 842 + +#define HEADING1_SIZE 16 +#define HEADING2_SIZE 14 +#define HEADING3_SIZE 12 +#define TEXT_SIZE 12 +#define HEADING_HEIGHT 50 +#define MARGIN 50 + +struct section { + int level; + const char *heading; + int num_paragraphs; +}; + +static const struct section contents[] = { + { 0, "Chapter 1", 1 }, + { 1, "Section 1.1", 4 }, + { 2, "Section 1.1.1", 3 }, + { 1, "Section 1.2", 2 }, + { 2, "Section 1.2.1", 4 }, + { 2, "Section 1.2.2", 4 }, + { 1, "Section 1.3", 2 }, + { 0, "Chapter 2", 1 }, + { 1, "Section 2.1", 4 }, + { 2, "Section 2.1.1", 3 }, + { 1, "Section 2.2", 2 }, + { 2, "Section 2.2.1", 4 }, + { 2, "Section 2.2.2", 4 }, + { 1, "Section 2.3", 2 }, + { 0, "Chapter 3", 1 }, + { 1, "Section 3.1", 4 }, + { 2, "Section 3.1.1", 3 }, + { 1, "Section 3.2", 2 }, + { 2, "Section 3.2.1", 4 }, + { 2, "Section 3.2.2", 4 }, + { 1, "Section 3.3", 2 }, + { 0, NULL } +}; + +static const char *ipsum_lorem = "Lorem ipsum dolor sit amet, consectetur adipiscing" + " elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua." + " Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi" + " ut aliquip ex ea commodo consequat. Duis aute irure dolor in" + " reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla" + " pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa" + " qui officia deserunt mollit anim id est laborum."; + +static const char *roman_numerals[] = { + "i", "ii", "iii", "iv", "v" +}; + +#define MAX_PARAGRAPH_LINES 20 + +static const char *utf8_destination = "l\xc3\xa4nk"; + +static int paragraph_num_lines; +static char *paragraph_text[MAX_PARAGRAPH_LINES]; +static double paragraph_height; +static double line_height; +static double y_pos; +static int outline_parents[10]; +static int page_num; + +static void +layout_paragraph (cairo_t *cr) +{ + char *text, *begin, *end, *prev_end; + cairo_text_extents_t text_extents; + cairo_font_extents_t font_extents; + + cairo_select_font_face (cr, "Serif", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size(cr, TEXT_SIZE); + cairo_font_extents (cr, &font_extents); + line_height = font_extents.height; + paragraph_height = 0; + paragraph_num_lines = 0; + text = strdup (ipsum_lorem); + begin = text; + end = text; + prev_end = end; + while (*begin) { + end = strchr(end, ' '); + if (!end) { + paragraph_text[paragraph_num_lines++] = strdup (begin); + break; + } + *end = 0; + cairo_text_extents (cr, begin, &text_extents); + *end = ' '; + if (text_extents.width + 2*MARGIN > PAGE_WIDTH) { + int len = prev_end - begin; + char *s = xmalloc (len); + memcpy (s, begin, len); + s[len-1] = 0; + paragraph_text[paragraph_num_lines++] = s; + begin = prev_end + 1; + } + prev_end = end; + end++; + } + paragraph_height = line_height * (paragraph_num_lines + 1); + free (text); +} + +static void +draw_paragraph (cairo_t *cr) +{ + int i; + + cairo_select_font_face (cr, "Serif", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size(cr, TEXT_SIZE); + cairo_tag_begin (cr, "P", NULL); + for (i = 0; i < paragraph_num_lines; i++) { + cairo_move_to (cr, MARGIN, y_pos); + cairo_show_text (cr, paragraph_text[i]); + y_pos += line_height; + } + cairo_tag_end (cr, "P"); + y_pos += line_height; +} + +static void +draw_page_num (cairo_surface_t *surface, cairo_t *cr, const char *prefix, int num) +{ + char buf[100]; + + buf[0] = 0; + if (prefix) + strcat (buf, prefix); + + if (num) + sprintf (buf + strlen(buf), "%d", num); + + cairo_save (cr); + cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size(cr, 12); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_move_to (cr, PAGE_WIDTH/2, PAGE_HEIGHT - MARGIN); + cairo_show_text (cr, buf); + cairo_restore (cr); + cairo_pdf_surface_set_page_label (surface, buf); +} + +static void +draw_contents (cairo_surface_t *surface, cairo_t *cr, const struct section *section) +{ + char *attrib; + + xasprintf (&attrib, "dest='%s'", section->heading); + cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL); + switch (section->level) { + case 0: + cairo_set_font_size(cr, HEADING1_SIZE); + break; + case 1: + cairo_set_font_size(cr, HEADING2_SIZE); + break; + case 2: + cairo_set_font_size(cr, HEADING3_SIZE); + break; + } + + if (y_pos + HEADING_HEIGHT + MARGIN > PAGE_HEIGHT) { + cairo_show_page (cr); + draw_page_num (surface, cr, roman_numerals[page_num++], 0); + y_pos = MARGIN; + } + cairo_move_to (cr, MARGIN, y_pos); + cairo_save (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_tag_begin (cr, "TOCI", NULL); + cairo_tag_begin (cr, "Reference", NULL); + cairo_tag_begin (cr, CAIRO_TAG_LINK, attrib); + cairo_show_text (cr, section->heading); + cairo_tag_end (cr, CAIRO_TAG_LINK); + cairo_tag_end (cr, "Reference"); + cairo_tag_end (cr, "TOCI"); + cairo_restore (cr); + y_pos += HEADING_HEIGHT; + free (attrib); +} + +static void +draw_section (cairo_surface_t *surface, cairo_t *cr, const struct section *section) +{ + int flags, i; + char *name_attrib; + char *dest_attrib; + + cairo_tag_begin (cr, "Sect", NULL); + xasprintf(&name_attrib, "name='%s'", section->heading); + xasprintf(&dest_attrib, "dest='%s'", section->heading); + cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD); + if (section->level == 0) { + cairo_show_page (cr); + draw_page_num (surface, cr, NULL, page_num++); + cairo_set_font_size(cr, HEADING1_SIZE); + cairo_move_to (cr, MARGIN, MARGIN); + cairo_tag_begin (cr, "H1", NULL); + cairo_tag_begin (cr, CAIRO_TAG_DEST, name_attrib); + cairo_show_text (cr, section->heading); + cairo_tag_end (cr, CAIRO_TAG_DEST); + cairo_tag_end (cr, "H1"); + y_pos = MARGIN + HEADING_HEIGHT; + flags = CAIRO_PDF_OUTLINE_FLAG_BOLD | CAIRO_PDF_OUTLINE_FLAG_OPEN; + outline_parents[0] = cairo_pdf_surface_add_outline (surface, + CAIRO_PDF_OUTLINE_ROOT, + section->heading, + dest_attrib, + flags); + } else { + if (section->level == 1) { + cairo_set_font_size(cr, HEADING2_SIZE); + flags = 0; + } else { + cairo_set_font_size(cr, HEADING3_SIZE); + flags = CAIRO_PDF_OUTLINE_FLAG_ITALIC; + } + + if (y_pos + HEADING_HEIGHT + paragraph_height + MARGIN > PAGE_HEIGHT) { + cairo_show_page (cr); + draw_page_num (surface, cr, NULL, page_num++); + y_pos = MARGIN; + } + cairo_move_to (cr, MARGIN, y_pos); + if (section->level == 1) + cairo_tag_begin (cr, "H2", NULL); + else + cairo_tag_begin (cr, "H3", NULL); + cairo_tag_begin (cr, CAIRO_TAG_DEST, name_attrib); + cairo_show_text (cr, section->heading); + cairo_tag_end (cr, CAIRO_TAG_DEST); + if (section->level == 1) + cairo_tag_end (cr, "H2"); + else + cairo_tag_end (cr, "H3"); + y_pos += HEADING_HEIGHT; + outline_parents[section->level] = cairo_pdf_surface_add_outline (surface, + outline_parents[section->level - 1], + section->heading, + dest_attrib, + flags); + } + + for (i = 0; i < section->num_paragraphs; i++) { + if (y_pos + paragraph_height + MARGIN > PAGE_HEIGHT) { + cairo_show_page (cr); + draw_page_num (surface, cr, NULL, page_num++); + y_pos = MARGIN; + } + draw_paragraph (cr); + } + cairo_tag_end (cr, "Sect"); + free (name_attrib); + free (dest_attrib); +} + +static void +draw_cover (cairo_surface_t *surface, cairo_t *cr) +{ + cairo_text_extents_t text_extents; + char *attrib; + cairo_rectangle_t url_box; + const char *cairo_url = "https://www.cairographics.org/"; + const double url_box_margin = 20.0; + + cairo_tag_begin (cr, CAIRO_TAG_DEST, "name='cover' internal"); + cairo_tag_end (cr, CAIRO_TAG_DEST); + + cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD); + cairo_set_font_size(cr, 16); + cairo_move_to (cr, PAGE_WIDTH/3, 0.15*PAGE_HEIGHT); + cairo_tag_begin (cr, "Span", NULL); + cairo_show_text (cr, "PDF Features Test"); + cairo_tag_end (cr, "Span"); + + /* Test URL link using "rect" attribute. The entire rectangle surrounding the URL should be a clickable link. */ + cairo_move_to (cr, PAGE_WIDTH/3, 0.2*PAGE_HEIGHT); + cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size(cr, TEXT_SIZE); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_show_text (cr, cairo_url); + cairo_text_extents (cr, cairo_url, &text_extents); + url_box.x = PAGE_WIDTH/3 - url_box_margin; + url_box.y = 0.2*PAGE_HEIGHT - url_box_margin; + url_box.width = text_extents.width + 2*url_box_margin; + url_box.height = -text_extents.height + 2*url_box_margin; + cairo_rectangle(cr, url_box.x, url_box.y, url_box.width, url_box.height); + cairo_stroke(cr); + xasprintf(&attrib, "rect=[%f %f %f %f] uri=\'%s\'", + url_box.x, url_box.y, url_box.width, url_box.height, cairo_url); + cairo_tag_begin (cr, CAIRO_TAG_LINK, attrib); + cairo_tag_end (cr, CAIRO_TAG_LINK); + free (attrib); + + /* Create link to not yet emmited page number */ + cairo_tag_begin (cr, CAIRO_TAG_LINK, "page=5"); + cairo_move_to (cr, PAGE_WIDTH/3, 0.25*PAGE_HEIGHT); + cairo_show_text (cr, "link to page 5"); + cairo_tag_end (cr, CAIRO_TAG_LINK); + + /* Create link to not yet emmited destination */ + cairo_tag_begin (cr, CAIRO_TAG_LINK, "dest='Section 3.3'"); + cairo_move_to (cr, PAGE_WIDTH/3, 0.3*PAGE_HEIGHT); + cairo_show_text (cr, "link to page section 3.3"); + cairo_tag_end (cr, CAIRO_TAG_LINK); + + /* Create link to external file */ + cairo_move_to (cr, PAGE_WIDTH/3, 0.35*PAGE_HEIGHT); + cairo_tag_begin (cr, CAIRO_TAG_LINK, "file='foo.pdf' page=1"); + cairo_show_text (cr, "link file 'foo.pdf'"); + cairo_tag_end (cr, CAIRO_TAG_LINK); + + /* Create link to missing dest */ + cairo_move_to (cr, PAGE_WIDTH/3, 0.4*PAGE_HEIGHT); + cairo_tag_begin (cr, CAIRO_TAG_LINK, "dest='I don\\'t exist'"); + cairo_show_text (cr, "link to missing dest"); + cairo_tag_end (cr, CAIRO_TAG_LINK); + + /* Create link to missing dest with URI fallback*/ + cairo_move_to (cr, PAGE_WIDTH/3, 0.45*PAGE_HEIGHT); + xasprintf(&attrib, "dest='I also don\\'t exist' uri='%s'", cairo_url); + cairo_tag_begin (cr, CAIRO_TAG_LINK, attrib); + cairo_show_text (cr, "link to missing dest with uri fallback"); + cairo_tag_end (cr, CAIRO_TAG_LINK); + free (attrib); + + /* Create link to utf8 dest */ + cairo_move_to (cr, PAGE_WIDTH/3, 0.5*PAGE_HEIGHT); + xasprintf(&attrib, "dest='%s'", utf8_destination); + cairo_tag_begin (cr, CAIRO_TAG_LINK, attrib); + cairo_show_text (cr, "link to utf8 dest"); + cairo_tag_end (cr, CAIRO_TAG_LINK); + free (attrib); + + draw_page_num (surface, cr, "cover", 0); +} + +static void +create_document (cairo_surface_t *surface, cairo_t *cr) +{ + char *attrib; + + layout_paragraph (cr); + + cairo_pdf_surface_set_thumbnail_size (surface, PAGE_WIDTH/10, PAGE_HEIGHT/10); + + cairo_pdf_surface_set_metadata (surface, CAIRO_PDF_METADATA_TITLE, "PDF Features Test"); + cairo_pdf_surface_set_metadata (surface, CAIRO_PDF_METADATA_AUTHOR, "cairo test suite"); + cairo_pdf_surface_set_metadata (surface, CAIRO_PDF_METADATA_SUBJECT, "cairo test"); + cairo_pdf_surface_set_metadata (surface, CAIRO_PDF_METADATA_KEYWORDS, + "tags, links, outline, page labels, metadata, thumbnails"); + cairo_pdf_surface_set_metadata (surface, CAIRO_PDF_METADATA_CREATOR, "pdf-features"); + cairo_pdf_surface_set_metadata (surface, CAIRO_PDF_METADATA_CREATE_DATE, "2016-01-01T12:34:56+10:30"); + cairo_pdf_surface_set_metadata (surface, CAIRO_PDF_METADATA_MOD_DATE, "2016-06-21T05:43:21Z"); + + cairo_pdf_surface_set_custom_metadata (surface, "DocumentNumber", "12345"); + /* Include some non ASCII characters */ + cairo_pdf_surface_set_custom_metadata (surface, "Document Name", "\xc2\xab""cairo test\xc2\xbb"); + /* Test unsetting custom metadata. "DocumentNumber" should not be emitted. */ + cairo_pdf_surface_set_custom_metadata (surface, "DocumentNumber", ""); + + cairo_tag_begin (cr, "Document", NULL); + + draw_cover (surface, cr); + cairo_pdf_surface_add_outline (surface, + CAIRO_PDF_OUTLINE_ROOT, + "Cover", "page=1", + CAIRO_PDF_OUTLINE_FLAG_BOLD); + + /* Create a simple link annotation. */ + cairo_tag_begin (cr, CAIRO_TAG_LINK, "uri='http://example.org' rect=[10 10 20 20]"); + cairo_tag_end (cr, CAIRO_TAG_LINK); + + /* Try to create a link annotation while the clip is empty; + * it will still be emitted. + */ + cairo_save (cr); + cairo_new_path (cr); + cairo_rectangle (cr, 100, 100, 50, 0); + cairo_clip (cr); + cairo_tag_begin (cr, CAIRO_TAG_LINK, "uri='http://example.com' rect=[100 100 20 20]"); + cairo_tag_end (cr, CAIRO_TAG_LINK); + cairo_restore (cr); + + /* An annotation whose rect has a negative coordinate. */ + cairo_tag_begin (cr, CAIRO_TAG_LINK, "uri='http://127.0.0.1/' rect=[10.0 -10.0 100.0 100.0]"); + cairo_tag_end (cr, CAIRO_TAG_LINK); + + + /* Distilled from Mozilla bug https://bugzilla.mozilla.org/show_bug.cgi?id=1725743: + * attempting to emit a Destination tag within a pushed group will lead to an + * assertion in _cairo_pdf_interchange_end_structure_tag when processing a + * following LINK tag that is outside the pushed group. + */ + + /* PushLayer */ + cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR_ALPHA); + + /* Destination */ + cairo_tag_begin (cr, CAIRO_TAG_DEST, "name='a' x=42 y=42"); + cairo_tag_end (cr, CAIRO_TAG_DEST); + + /* PopLayer */ + cairo_pop_group_to_source (cr); + cairo_paint_with_alpha (cr, 1); + cairo_set_source_rgb (cr, 0, 0, 0); + + /* Link */ + cairo_tag_begin (cr, CAIRO_TAG_LINK, "rect=[100 200 300 400] uri='http://127.0.0.1/'"); + cairo_tag_end (cr, CAIRO_TAG_LINK); + + /* End of extra Mozilla testcase. */ + + + cairo_show_page (cr); + + page_num = 0; + draw_page_num (surface, cr, roman_numerals[page_num++], 0); + y_pos = MARGIN; + + cairo_pdf_surface_add_outline (surface, + CAIRO_PDF_OUTLINE_ROOT, + "Contents", "dest='TOC'", + CAIRO_PDF_OUTLINE_FLAG_BOLD); + + cairo_tag_begin (cr, CAIRO_TAG_DEST, "name='TOC' internal"); + cairo_tag_begin (cr, "TOC", NULL); + const struct section *sect = contents; + while (sect->heading) { + draw_contents (surface, cr, sect); + sect++; + } + cairo_tag_end (cr, "TOC"); + cairo_tag_end (cr, CAIRO_TAG_DEST); + + page_num = 1; + sect = contents; + while (sect->heading) { + draw_section (surface, cr, sect); + sect++; + } + + cairo_show_page (cr); + + cairo_set_source_rgb (cr, 0, 0, 1); + + cairo_tag_begin (cr, CAIRO_TAG_LINK, "dest='cover'"); + cairo_move_to (cr, PAGE_WIDTH/3, 2*PAGE_HEIGHT/5); + cairo_show_text (cr, "link to cover"); + cairo_tag_end (cr, CAIRO_TAG_LINK); + + cairo_tag_begin (cr, CAIRO_TAG_LINK, "page=3"); + cairo_move_to (cr, PAGE_WIDTH/3, 3*PAGE_HEIGHT/5); + cairo_show_text (cr, "link to page 3"); + cairo_tag_end (cr, CAIRO_TAG_LINK); + + /* Create utf8 dest */ + cairo_move_to (cr, PAGE_WIDTH/3, 4*PAGE_HEIGHT/5); + xasprintf(&attrib, "name='%s'", utf8_destination); + cairo_tag_begin (cr, CAIRO_TAG_DEST, attrib); + cairo_show_text (cr, utf8_destination); + cairo_tag_end (cr, CAIRO_TAG_DEST); + free (attrib); + + cairo_tag_end (cr, "Document"); +} + +#ifdef HAVE_MMAP +static cairo_test_status_t +check_contains_string(cairo_test_context_t *ctx, const void *hay, size_t size, const char *needle) +{ + if (memmem(hay, size, needle, strlen(needle))) + return CAIRO_TEST_SUCCESS; + + cairo_test_log (ctx, "Failed to find expected string in generated PDF: %s\n", needle); + return CAIRO_TEST_FAILURE; +} +#endif + +static cairo_test_status_t +check_created_pdf(cairo_test_context_t *ctx, const char* filename) +{ + cairo_test_status_t result = CAIRO_TEST_SUCCESS; + int fd; + struct stat st; +#ifdef HAVE_MMAP + void *contents; +#endif + + fd = open(filename, O_RDONLY, 0); + if (fd < 0) { + cairo_test_log (ctx, "Failed to open generated PDF file %s: %s\n", filename, strerror(errno)); + return CAIRO_TEST_FAILURE; + } + + if (fstat(fd, &st) == -1) + { + cairo_test_log (ctx, "Failed to stat generated PDF file %s: %s\n", filename, strerror(errno)); + close(fd); + return CAIRO_TEST_FAILURE; + } + + if (st.st_size == 0) + { + cairo_test_log (ctx, "Generated PDF file %s is empty\n", filename); + close(fd); + return CAIRO_TEST_FAILURE; + } + +#ifdef HAVE_MMAP + contents = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0); + if (contents == NULL) + { + cairo_test_log (ctx, "Failed to mmap generated PDF file %s: %s\n", filename, strerror(errno)); + close(fd); + return CAIRO_TEST_FAILURE; + } + + /* check metadata */ + result |= check_contains_string(ctx, contents, st.st_size, "/Title (PDF Features Test)"); + result |= check_contains_string(ctx, contents, st.st_size, "/Author (cairo test suite)"); + result |= check_contains_string(ctx, contents, st.st_size, "/Creator (pdf-features)"); + result |= check_contains_string(ctx, contents, st.st_size, "/CreationDate (20160101123456+10'30')"); + result |= check_contains_string(ctx, contents, st.st_size, "/ModDate (20160621054321Z)"); + + /* check that both the example.org and example.com links were generated */ + result |= check_contains_string(ctx, contents, st.st_size, "http://example.org"); + result |= check_contains_string(ctx, contents, st.st_size, "http://example.com"); + + // TODO: add more checks + + munmap(contents, st.st_size); +#endif + + close(fd); + + return result; +} + +static cairo_test_status_t +create_pdf (cairo_test_context_t *ctx, cairo_bool_t check_output) +{ + cairo_surface_t *surface; + cairo_t *cr; + cairo_status_t status, status2; + cairo_test_status_t result; + cairo_pdf_version_t version; + char *filename; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + + /* check_created_pdf() only works with version 1.4. In version 1.5 + * the text that is searched for is compressed. */ + version = check_output ? CAIRO_PDF_VERSION_1_4 : CAIRO_PDF_VERSION_1_5; + + xasprintf (&filename, "%s/%s-%s.pdf", + path, + BASENAME, + check_output ? "1.4" : "1.5"); + surface = cairo_pdf_surface_create (filename, PAGE_WIDTH, PAGE_HEIGHT); + + cairo_pdf_surface_restrict_to_version (surface, version); + + cr = cairo_create (surface); + create_document (surface, cr); + + status = cairo_status (cr); + cairo_destroy (cr); + cairo_surface_finish (surface); + status2 = cairo_surface_status (surface); + if (status == CAIRO_STATUS_SUCCESS) + status = status2; + + cairo_surface_destroy (surface); + if (status) { + cairo_test_log (ctx, "Failed to create pdf surface for file %s: %s\n", + filename, cairo_status_to_string (status)); + return CAIRO_TEST_FAILURE; + } + + result = CAIRO_TEST_SUCCESS; + if (check_output) + result = check_created_pdf(ctx, filename); + + free (filename); + + return result; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_test_status_t result; + + if (! cairo_test_is_target_enabled (ctx, "pdf")) + return CAIRO_TEST_UNTESTED; + + /* Create version 1.5 PDF. This can only be manually checked */ + create_pdf (ctx, FALSE); + + /* Create version 1.4 PDF and checkout output */ + result = create_pdf (ctx, TRUE); + + + return result; +} + +CAIRO_TEST (pdf_tagged_text, + "Check tagged text, hyperlinks and PDF document features", + "pdf", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) + +#endif /* CAIRO_HAS_PDF_SURFACE */ diff --git a/local/recipes/libs/cairo/source/test/pdf2png.c b/local/recipes/libs/cairo/source/test/pdf2png.c new file mode 100644 index 0000000000..ab39c57360 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdf2png.c @@ -0,0 +1,103 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Kristian Høgsberg + */ + +#include +#include +#include + +#define FAIL(msg) \ + do { fprintf (stderr, "FAIL: %s\n", msg); exit (-1); } while (0) + +#define PIXELS_PER_POINT 1 + +int main (int argc, char *argv[]) +{ + PopplerDocument *document; + PopplerPage *page; + double width, height; + const char *filename = argv[1]; + const char *output_filename = argv[2]; + const char *page_label = argv[3]; + gchar *absolute, *uri; + cairo_surface_t *surface; + cairo_t *cr; + cairo_status_t status; + GError *error = NULL; + + if (argc != 4) + FAIL ("usage: pdf2png input_file.pdf output_file.png page"); + +#if !GLIB_CHECK_VERSION(2,36,0) + g_type_init (); +#endif + + if (g_path_is_absolute(filename)) { + absolute = g_strdup (filename); + } else { + gchar *dir = g_get_current_dir (); + absolute = g_build_filename (dir, filename, (gchar *) 0); + g_free (dir); + } + + uri = g_filename_to_uri (absolute, NULL, &error); + g_free (absolute); + if (uri == NULL) + FAIL (error->message); + + document = poppler_document_new_from_file (uri, NULL, &error); + g_free (uri); + if (document == NULL) + FAIL (error->message); + + page = poppler_document_get_page_by_label (document, page_label); + g_object_unref (document); + if (page == NULL) + FAIL ("page not found"); + + poppler_page_get_size (page, &width, &height); + + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR_ALPHA); + + poppler_page_render (page, cr); + g_object_unref (page); + + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + status = cairo_surface_write_to_png (cairo_get_target (cr), + output_filename); + cairo_destroy (cr); + + if (status) + FAIL (cairo_status_to_string (status)); + + return 0; +} diff --git a/local/recipes/libs/cairo/source/test/pdiff/.gitignore b/local/recipes/libs/cairo/source/test/pdiff/.gitignore new file mode 100644 index 0000000000..f44ed659ae --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdiff/.gitignore @@ -0,0 +1,3 @@ +TAGS +tags +perceptualdiff diff --git a/local/recipes/libs/cairo/source/test/pdiff/README.txt b/local/recipes/libs/cairo/source/test/pdiff/README.txt new file mode 100644 index 0000000000..922ddafbf1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdiff/README.txt @@ -0,0 +1,45 @@ +pdiff - a program that compares two images using +a perceptually based image metric. +Copyright (C) 2006 Yangli Hector Yee +yeehector@users.sourceforge.net +http://pdiff.sourceforge.net/ + +This program is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2 of the License, +or (at your option) any later version. + +This program is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +or FITNESS FOR A PARTICULAR PURPOSE. +See the GNU General Public License for more details in the file gpl.txt. + +Build Instructions +1. Download cross platform make from http://www.cmake.org +2. Download libtiff from http://www.libtiff.org. Download libpng from http://www.libpng.org +3. Edit CMakeLists.txt to tell it where to find your tiff library +4. Type cmake . +5. Type make . (or on Windows systems cmake makes a Visual Studio +Project file) +6. To specify the install directory, use make install DESTDIR="/home/me/mydist" + +Usage + +pdiff image1.(tif | png) image2.(tif | png) [options] +-verbose : Turns on verbose mode +-fov deg: field of view, deg, in degrees. Usually between 10.0 to 85.0. +This controls how much of the screen the oberserver is seeing. Front row of +a theatre has a field of view of around 25 degrees. Back row has a field of + view of around 60 degrees. +-threshold p : Sets the number of pixels, p, to reject. For example if p is + 100, then the test fails if 100 or more pixels are perceptably different. +-gamma g : The gamma to use to convert to RGB linear space. Default is 2.2 +-luminance l: The luminance of the display the observer is seeing. Default + is 100 candela per meter squared + +Credits + +Hector Yee, project administrator and originator - hectorgon.blogspot.com +Scott Corley, for png file IO code +Mick Weiss, Linux build and release & QA +Carl Worth, Rewrite as library, depend on cairo, and port to C \ No newline at end of file diff --git a/local/recipes/libs/cairo/source/test/pdiff/args.c b/local/recipes/libs/cairo/source/test/pdiff/args.c new file mode 100644 index 0000000000..64aef6fdb2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdiff/args.c @@ -0,0 +1,119 @@ +/* + Compare Args + Copyright (C) 2006 Yangli Hector Yee + + This program is free software; you can redistribute it and/or modify it under the terms of the + GNU General Public License as published by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; + without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with this program; + if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA +*/ + +#include "args.h" +#include +#include +#include + +static const char* copyright = +"PerceptualDiff version 1.0, Copyright (C) 2006 Yangli Hector Yee\n\ +PerceptualDiff comes with ABSOLUTELY NO WARRANTY;\n\ +This is free software, and you are welcome\n\ +to redistribute it under certain conditions;\n\ +See the GPL page for details: http://www.gnu.org/copyleft/gpl.html\n\n"; + +static const char *usage = +"PeceptualDiff image1.tif image2.tif\n\n\ + Compares image1.tif and image2.tif using a perceptually based image metric\n\ + Options:\n\ +\t-verbose : Turns on verbose mode\n\ +\t-fov deg : Field of view in degrees (0.1 to 89.9)\n\ +\t-threshold p : #pixels p below which differences are ignored\n\ +\t-gamma g : Value to convert rgb into linear space (default 2.2)\n\ +\t-luminance l : White luminance (default 100.0 cdm^-2)\n\ +\n\ +\n Note: Input files can also be in the PNG format\ +\n"; + +void +args_init (args_t *args) +{ + args->surface_a = NULL; + args->surface_b = NULL; + args->Verbose = false; + args->FieldOfView = 45.0f; + args->Gamma = 2.2f; + args->ThresholdPixels = 100; + args->Luminance = 100.0f; +} + +void +args_fini (args_t *args) +{ + cairo_surface_destroy (args->surface_a); + cairo_surface_destroy (args->surface_b); +} + +bool +args_parse (args_t *args, int argc, char **argv) +{ + int i; + if (argc < 3) { + fprintf (stderr, "%s", copyright); + fprintf (stderr, "%s", usage); + return false; + } + for (i = 0; i < argc; i++) { + if (i == 1) { + args->surface_a = cairo_image_surface_create_from_png (argv[1]); + if (cairo_surface_status (args->surface_a)) + { + fprintf (stderr, "FAIL: Cannot open %s: %s\n", + argv[1], cairo_status_to_string (cairo_surface_status (args->surface_a))); + return false; + } + } else if (i == 2) { + args->surface_b = cairo_image_surface_create_from_png (argv[2]); + if (cairo_surface_status (args->surface_b)) + { + fprintf (stderr, "FAIL: Cannot open %s: %s\n", + argv[2], cairo_status_to_string (cairo_surface_status (args->surface_b))); + return false; + } + } else { + if (strstr(argv[i], "-fov")) { + if (i + 1 < argc) { + args->FieldOfView = (float) atof(argv[i + 1]); + } + } else if (strstr(argv[i], "-verbose")) { + args->Verbose = true; + } else if (strstr(argv[i], "-threshold")) { + if (i + 1 < argc) { + args->ThresholdPixels = atoi(argv[i + 1]); + } + } else if (strstr(argv[i], "-gamma")) { + if (i + 1 < argc) { + args->Gamma = (float) atof(argv[i + 1]); + } + }else if (strstr(argv[i], "-luminance")) { + if (i + 1 < argc) { + args->Luminance = (float) atof(argv[i + 1]); + } + } + } + } /* i */ + return true; +} + +void +args_print (args_t *args) +{ + printf("Field of view is %f degrees\n", args->FieldOfView); + printf("Threshold pixels is %d pixels\n", args->ThresholdPixels); + printf("The Gamma is %f\n", args->Gamma); + printf("The Display's luminance is %f candela per meter squared\n", args->Luminance); +} diff --git a/local/recipes/libs/cairo/source/test/pdiff/args.h b/local/recipes/libs/cairo/source/test/pdiff/args.h new file mode 100644 index 0000000000..338507f77c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdiff/args.h @@ -0,0 +1,46 @@ +/* + Compare Args + Copyright (C) 2006 Yangli Hector Yee + + This program is free software; you can redistribute it and/or modify it under the terms of the + GNU General Public License as published by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; + without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with this program; + if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA +*/ + +#ifndef _ARGS_H +#define _ARGS_H + +#include "pdiff.h" + +/* Args to pass into the comparison function */ +typedef struct _args +{ + cairo_surface_t *surface_a; /* Image A */ + cairo_surface_t *surface_b; /* Image B */ + bool Verbose; /* Print lots of text or not */ + float FieldOfView; /* Field of view in degrees */ + float Gamma; /* The gamma to convert to linear color space */ + float Luminance; /* the display's luminance */ + unsigned int ThresholdPixels; /* How many pixels different to ignore */ +} args_t; + +void +args_init (args_t *args); + +void +args_fini (args_t *args); + +bool +args_parse (args_t *args, int argc, char **argv); + +void +args_print (args_t *args); + +#endif diff --git a/local/recipes/libs/cairo/source/test/pdiff/gpl.txt b/local/recipes/libs/cairo/source/test/pdiff/gpl.txt new file mode 100644 index 0000000000..f90922eea3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdiff/gpl.txt @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Lesser General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. 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It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. diff --git a/local/recipes/libs/cairo/source/test/pdiff/lpyramid.c b/local/recipes/libs/cairo/source/test/pdiff/lpyramid.c new file mode 100644 index 0000000000..bd402c7dae --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdiff/lpyramid.c @@ -0,0 +1,116 @@ +/* + Laplacian Pyramid + Copyright (C) 2006 Yangli Hector Yee + + This program is free software; you can redistribute it and/or modify it under the terms of the + GNU General Public License as published by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; + without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with this program; + if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA +*/ + +#include "lpyramid.h" +#include +#include +#include + +struct _lpyramid { + /* Successively blurred versions of the original image */ + float *levels[MAX_PYR_LEVELS]; + + int width; + int height; +}; + +static void +convolve (lpyramid_t *pyramid, float *a, const float *b) +/* convolves image b with the filter kernel and stores it in a */ +{ + int y,x,i,j; + const float Kernel[] = {0.05f, 0.25f, 0.4f, 0.25f, 0.05f}; + int width = pyramid->width; + int height = pyramid->height; + + for (y=0; y=height) ny=2*height - ny - 1; + ny *= width; + for (i=-2; i<=2; i++) { + int nx=x+i; + if (nx<0) nx=-nx; + if (nx>=width) nx=2*width - nx - 1; + sum_i += Kernel[i+2] * b[ny + nx]; + } + sum += sum_i * Kernel[j+2]; + } + *a++ = sum; + } + } +} + +/* + * Construction/Destruction + */ + +lpyramid_t * +lpyramid_create (float *image, int width, int height) +{ + lpyramid_t *pyramid; + int i; + + pyramid = malloc (sizeof (lpyramid_t)); + if (pyramid == NULL) { + fprintf (stderr, "Out of memory.\n"); + exit (1); + } + pyramid->width = width; + pyramid->height = height; + + /* Make the Laplacian pyramid by successively + * copying the earlier levels and blurring them */ + for (i=0; ilevels[i] = malloc (width * height * sizeof (float)); + if (pyramid->levels[i] == NULL) { + fprintf (stderr, "Out of memory.\n"); + exit (1); + } + if (i == 0) { + memcpy (pyramid->levels[i], image, width * height * sizeof (float)); + } else { + convolve(pyramid, pyramid->levels[i], pyramid->levels[i - 1]); + } + } + + return pyramid; +} + +void +lpyramid_destroy (lpyramid_t *pyramid) +{ + int i; + + for (i=0; ilevels[i]); + + free (pyramid); +} + +float +lpyramid_get_value (lpyramid_t *pyramid, int x, int y, int level) +{ + int index = x + y * pyramid->width; + int l = level; + if (l > MAX_PYR_LEVELS) + l = MAX_PYR_LEVELS; + return pyramid->levels[l][index]; +} diff --git a/local/recipes/libs/cairo/source/test/pdiff/lpyramid.h b/local/recipes/libs/cairo/source/test/pdiff/lpyramid.h new file mode 100644 index 0000000000..e47a66e20e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdiff/lpyramid.h @@ -0,0 +1,32 @@ +/* + Laplacian Pyramid + Copyright (C) 2006 Yangli Hector Yee + + This program is free software; you can redistribute it and/or modify it under the terms of the + GNU General Public License as published by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; + without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with this program; + if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA +*/ +#ifndef _LPYRAMID_H +#define _LPYRAMID_H + +#define MAX_PYR_LEVELS 8 + +typedef struct _lpyramid lpyramid_t; + +lpyramid_t * +lpyramid_create (float *image, int width, int height); + +void +lpyramid_destroy (lpyramid_t *pyramid); + +float +lpyramid_get_value (lpyramid_t *pyramid, int x, int y, int level); + +#endif /* _LPYRAMID_H */ diff --git a/local/recipes/libs/cairo/source/test/pdiff/meson.build b/local/recipes/libs/cairo/source/test/pdiff/meson.build new file mode 100644 index 0000000000..636871a1f6 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdiff/meson.build @@ -0,0 +1,24 @@ +libpdiff_sources = [ + 'lpyramid.c', + 'pdiff.c', +] + +perceptualdiff_sources = [ + 'args.c', + 'perceptualdiff.c', +] + +libpdiff = static_library('pdiff', libpdiff_sources, + include_directories: [incbase], + dependencies: deps + [libcairo_dep], +) + +libpdiff_dep = declare_dependency( + include_directories: include_directories('.'), + link_with: [libpdiff], +) + +perceptualdiff = executable('perceptualdiff', perceptualdiff_sources, + include_directories: [incbase], + dependencies: [libcairo_dep, libpdiff_dep], +) diff --git a/local/recipes/libs/cairo/source/test/pdiff/pdiff.c b/local/recipes/libs/cairo/source/test/pdiff/pdiff.c new file mode 100644 index 0000000000..1193698582 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdiff/pdiff.c @@ -0,0 +1,426 @@ +/* + Metric + Copyright (C) 2006 Yangli Hector Yee + + This program is free software; you can redistribute it and/or modify it under the terms of the + GNU General Public License as published by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; + without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with this program; + if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA +*/ + +#include "config.h" + +#include "lpyramid.h" +#include +#include +#include +#include + +#if HAVE_STDINT_H +# include +#elif HAVE_INTTYPES_H +# include +#elif HAVE_SYS_INT_TYPES_H +# include +#elif defined(_MSC_VER) + typedef __int8 int8_t; + typedef unsigned __int8 uint8_t; + typedef __int16 int16_t; + typedef unsigned __int16 uint16_t; + typedef __int32 int32_t; + typedef unsigned __int32 uint32_t; + typedef __int64 int64_t; + typedef unsigned __int64 uint64_t; +# ifndef HAVE_UINT64_T +# define HAVE_UINT64_T 1 +# endif +# ifndef INT16_MIN +# define INT16_MIN (-32767-1) +# endif +# ifndef INT16_MAX +# define INT16_MAX (32767) +# endif +# ifndef UINT16_MAX +# define UINT16_MAX (65535) +# endif +#else +#error Cannot find definitions for fixed-width integral types (uint8_t, uint32_t, etc.) +#endif + +#include "pdiff.h" + +#ifndef M_PI +#define M_PI 3.14159265f +#endif + +#ifndef __USE_ISOC99 +#define expf exp +#define powf pow +#define fabsf fabs +#define sqrtf sqrt +#define log10f log10 +#endif + +/* + * Given the adaptation luminance, this function returns the + * threshold of visibility in cd per m^2 + * TVI means Threshold vs Intensity function + * This version comes from Ward Larson Siggraph 1997 + */ +static float +tvi (float adaptation_luminance) +{ + /* returns the threshold luminance given the adaptation luminance + units are candelas per meter squared + */ + float log_a, r, result; + log_a = log10f(adaptation_luminance); + + if (log_a < -3.94f) { + r = -2.86f; + } else if (log_a < -1.44f) { + r = powf(0.405f * log_a + 1.6f , 2.18f) - 2.86f; + } else if (log_a < -0.0184f) { + r = log_a - 0.395f; + } else if (log_a < 1.9f) { + r = powf(0.249f * log_a + 0.65f, 2.7f) - 0.72f; + } else { + r = log_a - 1.255f; + } + + result = powf(10.0f , r); + + return result; +} + +/* computes the contrast sensitivity function (Barten SPIE 1989) + * given the cycles per degree (cpd) and luminance (lum) + */ +static float +csf (float cpd, float lum) +{ + float a, b, result; + + a = 440.0f * powf((1.0f + 0.7f / lum), -0.2f); + b = 0.3f * powf((1.0f + 100.0f / lum), 0.15f); + + result = a * cpd * expf(-b * cpd) * sqrtf(1.0f + 0.06f * expf(b * cpd)); + + return result; +} + +/* + * Visual Masking Function + * from Daly 1993 + */ +static float +mask (float contrast) +{ + float a, b, result; + a = powf(392.498f * contrast, 0.7f); + b = powf(0.0153f * a, 4.0f); + result = powf(1.0f + b, 0.25f); + + return result; +} + +/* convert Adobe RGB (1998) with reference white D65 to XYZ */ +static void +AdobeRGBToXYZ (float r, float g, float b, float *x, float *y, float *z) +{ + /* matrix is from http://www.brucelindbloom.com/ */ + *x = r * 0.576700f + g * 0.185556f + b * 0.188212f; + *y = r * 0.297361f + g * 0.627355f + b * 0.0752847f; + *z = r * 0.0270328f + g * 0.0706879f + b * 0.991248f; +} + +static void +XYZToLAB (float x, float y, float z, float *L, float *A, float *B) +{ + static float xw = -1; + static float yw; + static float zw; + const float epsilon = 216.0f / 24389.0f; + const float kappa = 24389.0f / 27.0f; + float f[3]; + float r[3]; + int i; + + /* reference white */ + if (xw < 0) { + AdobeRGBToXYZ(1, 1, 1, &xw, &yw, &zw); + } + r[0] = x / xw; + r[1] = y / yw; + r[2] = z / zw; + for (i = 0; i < 3; i++) { + if (r[i] > epsilon) { + f[i] = powf(r[i], 1.0f / 3.0f); + } else { + f[i] = (kappa * r[i] + 16.0f) / 116.0f; + } + } + *L = 116.0f * f[1] - 16.0f; + *A = 500.0f * (f[0] - f[1]); + *B = 200.0f * (f[1] - f[2]); +} + +static uint32_t +_get_pixel (const uint32_t *data, int i, cairo_format_t format) +{ + if (format == CAIRO_FORMAT_ARGB32) + return data[i]; + else + return data[i] | 0xff000000; +} + +static unsigned char +_get_red (const uint32_t *data, int i, cairo_format_t format) +{ + uint32_t pixel; + uint8_t alpha; + + pixel = _get_pixel (data, i, format); + alpha = (pixel & 0xff000000) >> 24; + if (alpha == 0) + return 0; + else + return (((pixel & 0x00ff0000) >> 16) * 255 + alpha / 2) / alpha; +} + +static unsigned char +_get_green (const uint32_t *data, int i, cairo_format_t format) +{ + uint32_t pixel; + uint8_t alpha; + + pixel = _get_pixel (data, i, format); + alpha = (pixel & 0xff000000) >> 24; + if (alpha == 0) + return 0; + else + return (((pixel & 0x0000ff00) >> 8) * 255 + alpha / 2) / alpha; +} + +static unsigned char +_get_blue (const uint32_t *data, int i, cairo_format_t format) +{ + uint32_t pixel; + uint8_t alpha; + + pixel = _get_pixel (data, i, format); + alpha = (pixel & 0xff000000) >> 24; + if (alpha == 0) + return 0; + else + return (((pixel & 0x000000ff) >> 0) * 255 + alpha / 2) / alpha; +} + +static void * +xmalloc (size_t size) +{ + void *buf; + + buf = malloc (size); + if (buf == NULL) { + fprintf (stderr, "Out of memory.\n"); + exit (1); + } + + return buf; +} + +int +pdiff_compare (cairo_surface_t *surface_a, + cairo_surface_t *surface_b, + double gamma, + double luminance, + double field_of_view) +{ + unsigned int dim = (cairo_image_surface_get_width (surface_a) + * cairo_image_surface_get_height (surface_a)); + unsigned int i; + + /* assuming colorspaces are in Adobe RGB (1998) convert to XYZ */ + float *aX; + float *aY; + float *aZ; + float *bX; + float *bY; + float *bZ; + float *aLum; + float *bLum; + + float *aA; + float *bA; + float *aB; + float *bB; + + unsigned int x, y, w, h; + + lpyramid_t *la, *lb; + + float num_one_degree_pixels, pixels_per_degree, num_pixels; + unsigned int adaptation_level; + + float cpd[MAX_PYR_LEVELS]; + float F_freq[MAX_PYR_LEVELS - 2]; + float csf_max; + const uint32_t *data_a, *data_b; + cairo_format_t format_a, format_b; + + unsigned int pixels_failed; + + w = cairo_image_surface_get_width (surface_a); + h = cairo_image_surface_get_height (surface_a); + if (w < 3 || h < 3) /* too small for the Laplacian convolution */ + return -1; + + format_a = cairo_image_surface_get_format (surface_a); + format_b = cairo_image_surface_get_format (surface_b); + assert (format_a == CAIRO_FORMAT_RGB24 || format_a == CAIRO_FORMAT_ARGB32); + assert (format_b == CAIRO_FORMAT_RGB24 || format_b == CAIRO_FORMAT_ARGB32); + + aX = xmalloc (dim * sizeof (float)); + aY = xmalloc (dim * sizeof (float)); + aZ = xmalloc (dim * sizeof (float)); + bX = xmalloc (dim * sizeof (float)); + bY = xmalloc (dim * sizeof (float)); + bZ = xmalloc (dim * sizeof (float)); + aLum = xmalloc (dim * sizeof (float)); + bLum = xmalloc (dim * sizeof (float)); + + aA = xmalloc (dim * sizeof (float)); + bA = xmalloc (dim * sizeof (float)); + aB = xmalloc (dim * sizeof (float)); + bB = xmalloc (dim * sizeof (float)); + + data_a = (uint32_t *) cairo_image_surface_get_data (surface_a); + data_b = (uint32_t *) cairo_image_surface_get_data (surface_b); + for (y = 0; y < h; y++) { + for (x = 0; x < w; x++) { + float r, g, b, l; + i = x + y * w; + r = powf(_get_red (data_a, i, format_a) / 255.0f, gamma); + g = powf(_get_green (data_a, i, format_a) / 255.0f, gamma); + b = powf(_get_blue (data_a, i, format_a) / 255.0f, gamma); + + AdobeRGBToXYZ(r,g,b,&aX[i],&aY[i],&aZ[i]); + XYZToLAB(aX[i], aY[i], aZ[i], &l, &aA[i], &aB[i]); + r = powf(_get_red (data_b, i, format_b) / 255.0f, gamma); + g = powf(_get_green (data_b, i, format_b) / 255.0f, gamma); + b = powf(_get_blue (data_b, i, format_b) / 255.0f, gamma); + + AdobeRGBToXYZ(r,g,b,&bX[i],&bY[i],&bZ[i]); + XYZToLAB(bX[i], bY[i], bZ[i], &l, &bA[i], &bB[i]); + aLum[i] = aY[i] * luminance; + bLum[i] = bY[i] * luminance; + } + } + + la = lpyramid_create (aLum, w, h); + lb = lpyramid_create (bLum, w, h); + + num_one_degree_pixels = (float) (2 * tan(field_of_view * 0.5 * M_PI / 180) * 180 / M_PI); + pixels_per_degree = w / num_one_degree_pixels; + + num_pixels = 1; + adaptation_level = 0; + for (i = 0; i < MAX_PYR_LEVELS; i++) { + adaptation_level = i; + if (num_pixels > num_one_degree_pixels) break; + num_pixels *= 2; + } + + cpd[0] = 0.5f * pixels_per_degree; + for (i = 1; i < MAX_PYR_LEVELS; i++) cpd[i] = 0.5f * cpd[i - 1]; + csf_max = csf(3.248f, 100.0f); + + for (i = 0; i < MAX_PYR_LEVELS - 2; i++) F_freq[i] = csf_max / csf( cpd[i], 100.0f); + + pixels_failed = 0; + for (y = 0; y < h; y++) { + for (x = 0; x < w; x++) { + int index = x + y * w; + float contrast[MAX_PYR_LEVELS - 2]; + float F_mask[MAX_PYR_LEVELS - 2]; + float factor; + float delta; + float adapt; + bool pass; + float sum_contrast = 0; + for (i = 0; i < MAX_PYR_LEVELS - 2; i++) { + float n1 = fabsf(lpyramid_get_value (la,x,y,i) - lpyramid_get_value (la,x,y,i + 1)); + float n2 = fabsf(lpyramid_get_value (lb,x,y,i) - lpyramid_get_value (lb,x,y,i + 1)); + float numerator = (n1 > n2) ? n1 : n2; + float d1 = fabsf(lpyramid_get_value(la,x,y,i+2)); + float d2 = fabsf(lpyramid_get_value(lb,x,y,i+2)); + float denominator = (d1 > d2) ? d1 : d2; + if (denominator < 1e-5f) denominator = 1e-5f; + contrast[i] = numerator / denominator; + sum_contrast += contrast[i]; + } + if (sum_contrast < 1e-5) sum_contrast = 1e-5f; + adapt = lpyramid_get_value(la,x,y,adaptation_level) + lpyramid_get_value(lb,x,y,adaptation_level); + adapt *= 0.5f; + if (adapt < 1e-5) adapt = 1e-5f; + for (i = 0; i < MAX_PYR_LEVELS - 2; i++) { + F_mask[i] = mask(contrast[i] * csf(cpd[i], adapt)); + } + factor = 0; + for (i = 0; i < MAX_PYR_LEVELS - 2; i++) { + factor += contrast[i] * F_freq[i] * F_mask[i] / sum_contrast; + } + if (factor < 1) factor = 1; + if (factor > 10) factor = 10; + delta = fabsf(lpyramid_get_value(la,x,y,0) - lpyramid_get_value(lb,x,y,0)); + pass = true; + /* pure luminance test */ + if (delta > factor * tvi(adapt)) { + pass = false; + } else { + /* CIE delta E test with modifications */ + float color_scale = 1.0f; + float da = aA[index] - bA[index]; + float db = aB[index] - bB[index]; + float delta_e; + /* ramp down the color test in scotopic regions */ + if (adapt < 10.0f) { + color_scale = 1.0f - (10.0f - color_scale) / 10.0f; + color_scale = color_scale * color_scale; + } + da = da * da; + db = db * db; + delta_e = (da + db) * color_scale; + if (delta_e > factor) { + pass = false; + } + } + if (!pass) + pixels_failed++; + } + } + + free (aX); + free (aY); + free (aZ); + free (bX); + free (bY); + free (bZ); + free (aLum); + free (bLum); + lpyramid_destroy (la); + lpyramid_destroy (lb); + free (aA); + free (bA); + free (aB); + free (bB); + + return pixels_failed; +} diff --git a/local/recipes/libs/cairo/source/test/pdiff/pdiff.h b/local/recipes/libs/cairo/source/test/pdiff/pdiff.h new file mode 100644 index 0000000000..30fec06cf4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdiff/pdiff.h @@ -0,0 +1,40 @@ +/* + Copyright (C) 2006 Yangli Hector Yee + Copyright (C) 2006 Red Hat, Inc. + + This program is free software; you can redistribute it and/or modify it under the terms of the + GNU General Public License as published by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; + without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with this program; + if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA +*/ + +#ifndef _PDIFF_H +#define _PDIFF_H + +#include + +typedef int bool; +#ifndef true +#define true 1 +#endif +#ifndef false +#define false 0 +#endif + +/* Image comparison metric using Yee's method (and a cairo interface) + * References: A Perceptual Metric for Production Testing, Hector Yee, Journal of Graphics Tools 2004 + */ +int +pdiff_compare (cairo_surface_t *surface_a, + cairo_surface_t *surface_b, + double gamma, + double luminance, + double field_of_view); + +#endif diff --git a/local/recipes/libs/cairo/source/test/pdiff/perceptualdiff.c b/local/recipes/libs/cairo/source/test/pdiff/perceptualdiff.c new file mode 100644 index 0000000000..5850dc916d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pdiff/perceptualdiff.c @@ -0,0 +1,101 @@ +/* + PerceptualDiff - a program that compares two images using a perceptual metric + based on the paper : + A perceptual metric for production testing. Journal of graphics tools, 9(4):33-40, 2004, Hector Yee + Copyright (C) 2006 Yangli Hector Yee + + This program is free software; you can redistribute it and/or modify it under the terms of the + GNU General Public License as published by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; + without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with this program; + if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA +*/ + +#include +#include +#include +#include +#include "lpyramid.h" +#include "args.h" +#include "pdiff.h" + +static bool Yee_Compare(args_t *args) +{ + unsigned int width_a, height_a, stride_a; + unsigned char *data_a, *row_a; + uint32_t *pixel_a; + unsigned int width_b, height_b, stride_b; + unsigned char *data_b, *row_b; + uint32_t *pixel_b; + unsigned int x, y, pixels_failed; + bool identical = true; + + width_a = cairo_image_surface_get_width (args->surface_a); + height_a = cairo_image_surface_get_height (args->surface_a); + stride_a = cairo_image_surface_get_stride (args->surface_a); + data_a = cairo_image_surface_get_data (args->surface_a); + + width_b = cairo_image_surface_get_width (args->surface_b); + height_b = cairo_image_surface_get_height (args->surface_b); + stride_b = cairo_image_surface_get_stride (args->surface_b); + data_b = cairo_image_surface_get_data (args->surface_b); + + if ((width_a != width_b) || (height_a != height_b)) { + printf ("FAIL: Image dimensions do not match\n"); + return false; + } + + identical = true; + + for (y = 0; y < height_a; y++) { + row_a = data_a + y * stride_a; + row_b = data_b + y * stride_b; + pixel_a = (uint32_t *) row_a; + pixel_b = (uint32_t *) row_b; + for (x = 0; x < width_a; x++) { + if (*pixel_a != *pixel_b) { + identical = false; + } + pixel_a++; + pixel_b++; + } + } + if (identical) { + printf ("PASS: Images are binary identical\n"); + return true; + } + + pixels_failed = pdiff_compare (args->surface_a, args->surface_b, + args->Gamma, args->Luminance, + args->FieldOfView); + + if (pixels_failed < args->ThresholdPixels) { + printf ("PASS: Images are perceptually indistinguishable\n"); + return true; + } + + printf("FAIL: Images are visibly different\n" + "%d pixels are different\n", pixels_failed); + + return false; +} + +int main(int argc, char **argv) +{ + args_t args; + + args_init (&args); + + if (!args_parse (&args, argc, argv)) { + return -1; + } else { + if (args.Verbose) + args_print (&args); + } + return ! Yee_Compare(&args); +} diff --git a/local/recipes/libs/cairo/source/test/pixman-downscale.c b/local/recipes/libs/cairo/source/test/pixman-downscale.c new file mode 100644 index 0000000000..6b653d2232 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pixman-downscale.c @@ -0,0 +1,203 @@ +/* + * Copyright © 2013 Samsung Electronics + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Bryce Harrington + */ + +/* This test exercises scaling a png image to smaller pixel dimensions + * + * Currently, this exercises several of pixman's scaling filters. + */ + +#include "cairo-test.h" + +#include +#include + +#include + +static const char png_filename[] = "quad-color.png"; + +/* Draw an image scaled down, with antialiasing disabled */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height, cairo_filter_t filter) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *image; + double x_scale, y_scale, scale; + + cairo_set_source_rgb (cr, 1, 1, 1); + image = cairo_test_create_surface_from_png (ctx, png_filename); + x_scale = width * 1.0 / cairo_image_surface_get_width (image); + y_scale = height * 1.0 / cairo_image_surface_get_height (image); + scale = x_scale < y_scale ? x_scale : y_scale; + + cairo_save (cr); + cairo_scale (cr, scale, scale); + cairo_set_source_surface (cr, image, 0, 0); + cairo_pattern_set_filter (cairo_get_source (cr), filter); + cairo_paint (cr); + cairo_restore (cr); + cairo_surface_destroy (image); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_fast (cairo_t *cr, int width, int height) +{ + return draw (cr, width, height, CAIRO_FILTER_FAST); +} + +static cairo_test_status_t +draw_good (cairo_t *cr, int width, int height) +{ + return draw (cr, width, height, CAIRO_FILTER_GOOD); +} + +static cairo_test_status_t +draw_best (cairo_t *cr, int width, int height) +{ + return draw (cr, width, height, CAIRO_FILTER_BEST); +} + +static cairo_test_status_t +draw_nearest (cairo_t *cr, int width, int height) +{ + return draw (cr, width, height, CAIRO_FILTER_NEAREST); +} + +static cairo_test_status_t +draw_bilinear (cairo_t *cr, int width, int height) +{ + return draw (cr, width, height, CAIRO_FILTER_BILINEAR); +} + +CAIRO_TEST (pixman_downscale_fast_96, + "Tests scaling to equivalent size using the fast filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 96, 96, + NULL, draw_fast) + +CAIRO_TEST (pixman_downscale_fast_95, + "Tests downscaling by a single pixel using the fast filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 95, 95, + NULL, draw_fast) + +CAIRO_TEST (pixman_downscale_fast_24, + "Tests downscaling by an even multiple using the fast filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 24, 24, + NULL, draw_fast) + + +CAIRO_TEST (pixman_downscale_good_96, + "Tests scaling to equivalent size using the good filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 96, 96, + NULL, draw_good) + +CAIRO_TEST (pixman_downscale_good_95, + "Tests downscaling by a single pixel using the good filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 95, 95, + NULL, draw_good) + +CAIRO_TEST (pixman_downscale_good_24, + "Tests downscaling by an even multiple using the good filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 24, 24, + NULL, draw_good) + + +CAIRO_TEST (pixman_downscale_best_96, + "Tests scaling to equivalent size using the best filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 96, 96, + NULL, draw_best) + +CAIRO_TEST (pixman_downscale_best_95, + "Tests downscaling by a single pixel using the best filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 95, 95, + NULL, draw_best) + +CAIRO_TEST (pixman_downscale_best_24, + "Tests downscaling by an even multiple using the best filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 24, 24, + NULL, draw_best) + + +CAIRO_TEST (pixman_downscale_nearest_96, + "Tests scaling to equivalent size using the nearest filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 96, 96, + NULL, draw_nearest) + +CAIRO_TEST (pixman_downscale_nearest_95, + "Tests downscaling by a single pixel using the nearest filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 95, 95, + NULL, draw_nearest) + +CAIRO_TEST (pixman_downscale_nearest_24, + "Tests downscaling by an even multiple using the nearest filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 24, 24, + NULL, draw_nearest) + + +CAIRO_TEST (pixman_downscale_bilinear_96, + "Tests scaling to equivalent size using the bilinear filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 96, 96, + NULL, draw_bilinear) + +CAIRO_TEST (pixman_downscale_bilinear_95, + "Tests downscaling by a single pixel using the bilinear filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 95, 95, + NULL, draw_bilinear) + +CAIRO_TEST (pixman_downscale_bilinear_24, + "Tests downscaling by an even multiple using the bilinear filter", + "image, transform, raster, downscale", /* keywords */ + NULL, /* requirements */ + 24, 24, + NULL, draw_bilinear) diff --git a/local/recipes/libs/cairo/source/test/pixman-rotate.c b/local/recipes/libs/cairo/source/test/pixman-rotate.c new file mode 100644 index 0000000000..e0d0fc8852 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pixman-rotate.c @@ -0,0 +1,92 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Kristian Høgsberg + */ + +#include "cairo-test.h" + +#include +#include +#include +#include + +#include + +#define WIDTH 32 +#define HEIGHT WIDTH + +#define IMAGE_WIDTH (3 * WIDTH) +#define IMAGE_HEIGHT IMAGE_WIDTH + +/* Draw the word cairo at NUM_TEXT different angles */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *stamp; + cairo_t *cr2; + + /* Draw a translucent rectangle for reference where the rotated + * image should be. */ + cairo_new_path (cr); + cairo_rectangle (cr, WIDTH, HEIGHT, WIDTH, HEIGHT); + cairo_set_source_rgba (cr, 1, 1, 0, 0.3); + cairo_fill (cr); + +#if 1 /* Set to 0 to generate reference image */ + cairo_translate (cr, 2 * WIDTH, 2 * HEIGHT); + cairo_rotate (cr, M_PI); +#else + cairo_translate (cr, WIDTH, HEIGHT); +#endif + + stamp = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + WIDTH, HEIGHT); + cr2 = cairo_create (stamp); + cairo_surface_destroy (stamp); + { + cairo_new_path (cr2); + cairo_rectangle (cr2, WIDTH / 4, HEIGHT / 4, WIDTH / 2, HEIGHT / 2); + cairo_set_source_rgba (cr2, 1, 0, 0, 0.8); + cairo_fill (cr2); + + cairo_rectangle (cr2, 0, 0, WIDTH, HEIGHT); + cairo_set_line_width (cr2, 2); + cairo_set_source_rgb (cr2, 0, 0, 0); + cairo_stroke (cr2); + } + cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (pixman_rotate, + "Exposes pixman off-by-one error when rotating", + "image, transform", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/png-flatten.c b/local/recipes/libs/cairo/source/test/png-flatten.c new file mode 100644 index 0000000000..2ce804ea62 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/png-flatten.c @@ -0,0 +1,77 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl Worth + */ + +#include + +#include + +int +main (int argc, char *argv[]) +{ + cairo_t *cr; + cairo_surface_t *argb, *rgb24; + cairo_status_t status; + const char *input, *output; + + if (argc != 3) { + fprintf (stderr, "usage: %s input.png output.png", argv[0]); + fprintf (stderr, "Loads a PNG image (potentially with alpha) and writes out a flattened (no alpha)\nPNG image by first blending over white.\n"); + return 1; + } + + input = argv[1]; + output = argv[2]; + + argb = cairo_image_surface_create_from_png (input); + status = cairo_surface_status (argb); + if (status) { + fprintf (stderr, "%s: Error: Failed to load %s: %s\n", + argv[0], input, cairo_status_to_string (status)); + return 1; + } + + rgb24 = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + cairo_image_surface_get_width (argb), + cairo_image_surface_get_height (argb)); + + cr = cairo_create (rgb24); + + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_source_surface (cr, argb, 0, 0); + cairo_paint (cr); + + cairo_destroy (cr); + + status = cairo_surface_write_to_png (rgb24, output); + if (status) { + fprintf (stderr, "%s: Error: Failed to write %s: %s\n", + argv[0], output, cairo_status_to_string (status)); + return 1; + } + + return 0; +} diff --git a/local/recipes/libs/cairo/source/test/png.c b/local/recipes/libs/cairo/source/test/png.c new file mode 100644 index 0000000000..a199d4867d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/png.c @@ -0,0 +1,175 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#include + +/* Test the idempotency of write_png->read_png */ + +#define RGB_MASK 0x00ffffff +#define BASENAME "png.out" + +static cairo_bool_t +image_surface_equals (cairo_surface_t *A, cairo_surface_t *B) +{ + if (cairo_image_surface_get_format (A) != + cairo_image_surface_get_format (B)) + return 0; + + if (cairo_image_surface_get_width (A) != + cairo_image_surface_get_width (B)) + return 0; + + if (cairo_image_surface_get_height (A) != + cairo_image_surface_get_height (B)) + return 0; + + return 1; +} + +static const char * +format_to_string (cairo_format_t format) +{ + switch (format) { + case CAIRO_FORMAT_A1: return "a1"; + case CAIRO_FORMAT_A8: return "a8"; + case CAIRO_FORMAT_RGB16_565: return "rgb16"; + case CAIRO_FORMAT_RGB24: return "rgb24"; + case CAIRO_FORMAT_RGB30: return "rgb30"; + case CAIRO_FORMAT_ARGB32: return "argb32"; + case CAIRO_FORMAT_RGB96F: return "rgb96f"; + case CAIRO_FORMAT_RGBA128F: return "rgba128f"; + case CAIRO_FORMAT_INVALID: + default: return "???"; + } +} + +static void +print_surface (const cairo_test_context_t *ctx, cairo_surface_t *surface) +{ + cairo_test_log (ctx, + "%s (%dx%d)\n", + format_to_string (cairo_image_surface_get_format (surface)), + cairo_image_surface_get_width (surface), + cairo_image_surface_get_height (surface)); +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_surface_t *surface0, *surface1; + cairo_status_t status; + uint32_t argb32 = 0xdeadbede; + char *filename; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + + xasprintf (&filename, "%s/%s.png", path, BASENAME); + surface0 = cairo_image_surface_create_for_data ((unsigned char *) &argb32, + CAIRO_FORMAT_ARGB32, + 1, 1, 4); + status = cairo_surface_write_to_png (surface0, filename); + if (status) { + cairo_test_log (ctx, "Error writing '%s': %s\n", + filename, cairo_status_to_string (status)); + + cairo_surface_destroy (surface0); + free (filename); + return cairo_test_status_from_status (ctx, status); + } + surface1 = cairo_image_surface_create_from_png (filename); + status = cairo_surface_status (surface1); + if (status) { + cairo_test_log (ctx, "Error reading '%s': %s\n", + filename, cairo_status_to_string (status)); + + cairo_surface_destroy (surface1); + cairo_surface_destroy (surface0); + free (filename); + return cairo_test_status_from_status (ctx, status); + } + + if (! image_surface_equals (surface0, surface1)) { + cairo_test_log (ctx, "Error surface mismatch.\n"); + cairo_test_log (ctx, "to png: "); print_surface (ctx, surface0); + cairo_test_log (ctx, "from png: "); print_surface (ctx, surface1); + + cairo_surface_destroy (surface0); + cairo_surface_destroy (surface1); + free (filename); + return CAIRO_TEST_FAILURE; + } + assert (*(uint32_t *) cairo_image_surface_get_data (surface1) == argb32); + + cairo_surface_destroy (surface0); + cairo_surface_destroy (surface1); + + surface0 = cairo_image_surface_create_for_data ((unsigned char *) &argb32, + CAIRO_FORMAT_RGB24, + 1, 1, 4); + status = cairo_surface_write_to_png (surface0, filename); + if (status) { + cairo_test_log (ctx, "Error writing '%s': %s\n", + filename, cairo_status_to_string (status)); + cairo_surface_destroy (surface0); + return cairo_test_status_from_status (ctx, status); + } + surface1 = cairo_image_surface_create_from_png (filename); + status = cairo_surface_status (surface1); + if (status) { + cairo_test_log (ctx, "Error reading '%s': %s\n", + filename, cairo_status_to_string (status)); + free (filename); + + cairo_surface_destroy (surface1); + cairo_surface_destroy (surface0); + return cairo_test_status_from_status (ctx, status); + } + free (filename); + + if (! image_surface_equals (surface0, surface1)) { + cairo_test_log (ctx, "Error surface mismatch.\n"); + cairo_test_log (ctx, "to png: "); print_surface (ctx, surface0); + cairo_test_log (ctx, "from png: "); print_surface (ctx, surface1); + + cairo_surface_destroy (surface0); + cairo_surface_destroy (surface1); + return CAIRO_TEST_FAILURE; + } + assert ((*(uint32_t *) cairo_image_surface_get_data (surface1) & RGB_MASK) + == (argb32 & RGB_MASK)); + + cairo_surface_destroy (surface0); + cairo_surface_destroy (surface1); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (png, + "Check that the png export/import is idempotent.", + "png, api", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/png.png b/local/recipes/libs/cairo/source/test/png.png new file mode 100644 index 0000000000..56c428e121 Binary files /dev/null and b/local/recipes/libs/cairo/source/test/png.png differ diff --git a/local/recipes/libs/cairo/source/test/ps-eps.c b/local/recipes/libs/cairo/source/test/ps-eps.c new file mode 100644 index 0000000000..60203a1cb0 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ps-eps.c @@ -0,0 +1,352 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2009 Adrian Johnson + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + * Adrian Johnson + * Chris Wilson + */ + +#include "config.h" + +#include +#include +#include +#include +#include + +#ifdef HAVE_UNISTD_H +#include +#include +#endif +#if HAVE_SYS_STAT_H +#include +#endif + +#include "cairo-test.h" +#include "buffer-diff.h" + +/* Test EPS output. + */ + +#define WIDTH 595 +#define HEIGHT 842 + +/* Reference Bounding Box */ +#define LLX 95 +#define LLY 687 +#define URX 155 +#define URY 747 + +static void +_xunlink (const cairo_test_context_t *ctx, const char *pathname) +{ + if (unlink (pathname) < 0 && errno != ENOENT) { + cairo_test_log (ctx, "Error: Cannot remove %s: %s\n", + pathname, strerror (errno)); + exit (1); + } +} + +static cairo_bool_t +check_result (cairo_test_context_t *ctx, + const cairo_boilerplate_target_t *target, + const char *test_name, + const char *base_name, + cairo_surface_t *surface) +{ + const char *format; + char *ref_name; + char *png_name; + char *diff_name; + cairo_surface_t *test_image, *ref_image, *diff_image; + buffer_diff_result_t result; + cairo_status_t status; + cairo_bool_t ret; + + /* XXX log target, OUTPUT, REFERENCE, DIFFERENCE for index.html */ + + if (target->finish_surface != NULL) { + status = target->finish_surface (surface); + if (status) { + cairo_test_log (ctx, "Error: Failed to finish surface: %s\n", + cairo_status_to_string (status)); + cairo_surface_destroy (surface); + return FALSE; + } + } + + xasprintf (&png_name, "%s.out.png", base_name); + xasprintf (&diff_name, "%s.diff.png", base_name); + + test_image = target->get_image_surface (surface, 0, WIDTH, HEIGHT); + if (cairo_surface_status (test_image)) { + cairo_test_log (ctx, "Error: Failed to extract page: %s\n", + cairo_status_to_string (cairo_surface_status (test_image))); + cairo_surface_destroy (test_image); + free (png_name); + free (diff_name); + return FALSE; + } + + _xunlink (ctx, png_name); + status = cairo_surface_write_to_png (test_image, png_name); + if (status) { + cairo_test_log (ctx, "Error: Failed to write output image: %s\n", + cairo_status_to_string (status)); + cairo_surface_destroy (test_image); + free (png_name); + free (diff_name); + return FALSE; + } + + format = cairo_boilerplate_content_name (target->content); + ref_name = cairo_test_reference_filename (ctx, + base_name, + test_name, + target->name, + target->basename, + format, + CAIRO_TEST_REF_SUFFIX, + CAIRO_TEST_PNG_EXTENSION); + if (ref_name == NULL) { + cairo_test_log (ctx, "Error: Cannot find reference image for %s\n", + base_name); + cairo_surface_destroy (test_image); + free (png_name); + free (diff_name); + return FALSE; + } + + ref_image = cairo_test_get_reference_image (ctx, ref_name, + target->content == CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED); + if (cairo_surface_status (ref_image)) { + cairo_test_log (ctx, "Error: Cannot open reference image for %s: %s\n", + ref_name, + cairo_status_to_string (cairo_surface_status (ref_image))); + cairo_surface_destroy (ref_image); + cairo_surface_destroy (test_image); + free (png_name); + free (diff_name); + free (ref_name); + return FALSE; + } + + diff_image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + WIDTH, HEIGHT); + + ret = TRUE; + status = image_diff (ctx, + test_image, ref_image, diff_image, + &result); + _xunlink (ctx, diff_name); + if (status) { + cairo_test_log (ctx, "Error: Failed to compare images: %s\n", + cairo_status_to_string (status)); + ret = FALSE; + } else if (image_diff_is_failure (&result, target->error_tolerance)) + { + ret = FALSE; + + status = cairo_surface_write_to_png (diff_image, diff_name); + if (status) { + cairo_test_log (ctx, "Error: Failed to write differences image: %s\n", + cairo_status_to_string (status)); + } + } + + cairo_surface_destroy (test_image); + cairo_surface_destroy (diff_image); + free (png_name); + free (diff_name); + free (ref_name); + + return ret; +} + + +#define DOCUMENT_BBOX "%%BoundingBox:" +#define PAGE_BBOX "%%PageBoundingBox:" + +static cairo_bool_t +check_bbox (cairo_test_context_t *ctx, + const char *base_name) +{ + char *filename; + FILE *f; + char buf[256]; + cairo_bool_t bbox_pass, page_bbox_pass; + int llx, lly, urx, ury; + int ret; + + xasprintf (&filename, "%s.out.ps", base_name); + f = fopen (filename, "r"); + if (!f) { + cairo_test_log (ctx, "Error: Cannot open EPS output: %s\n", + base_name); + free (filename); + return FALSE; + } + + bbox_pass = FALSE; + page_bbox_pass = FALSE; + while (!feof(f)) { + if (fgets (buf, sizeof(buf), f) == (char *)EOF) { + cairo_test_log (ctx, "Error: Unexpected EOF in %s\n", + filename); + break; + } + + if (strncmp (buf, DOCUMENT_BBOX, strlen (DOCUMENT_BBOX)) == 0) { + ret = sscanf (buf+strlen (DOCUMENT_BBOX), "%d %d %d %d", &llx, &lly, &urx, &ury); + if (ret == 4 && llx == LLX && lly == LLY && urx == URX && ury == URY) + bbox_pass = TRUE; + } + + if (strncmp (buf, PAGE_BBOX, strlen (PAGE_BBOX)) == 0) { + ret = sscanf (buf+strlen (PAGE_BBOX), "%d %d %d %d", &llx, &lly, &urx, &ury); + if (ret == 4 && llx == LLX && lly == LLY && urx == URX && ury == URY) + page_bbox_pass = TRUE; + } + } + fclose (f); + + if (!bbox_pass || !page_bbox_pass) { + cairo_test_log (ctx, "Error: EPS Bounding Box does not match reference Bounding Box\n"); + return FALSE; + } + + free (filename); + + return TRUE; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_t *cr; + cairo_test_status_t ret = CAIRO_TEST_UNTESTED; + unsigned int i; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + + for (i = 0; i < ctx->num_targets; i++) { + const cairo_boilerplate_target_t *target = ctx->targets_to_test[i]; + cairo_surface_t *surface = NULL; + char *base_name; + void *closure; + const char *format; + cairo_status_t status; + cairo_bool_t pass; + char *test_name; + + if (! cairo_test_is_target_enabled (ctx, target->name)) + continue; + + format = cairo_boilerplate_content_name (target->content); + xasprintf (&test_name, "ps-eps"); + xasprintf (&base_name, "%s/ps-eps.%s.%s", + path, target->name, format); + + surface = (target->create_surface) (base_name, + target->content, + WIDTH, HEIGHT, + WIDTH, HEIGHT, + CAIRO_BOILERPLATE_MODE_TEST, + &closure); + + if (surface == NULL) { + free (base_name); + free (test_name); + continue; + } + + cairo_ps_surface_set_eps (surface, TRUE); + if (!cairo_ps_surface_get_eps (surface)) { + cairo_surface_destroy (surface); + if (target->cleanup) + target->cleanup (closure); + + free (base_name); + free (test_name); + continue; + } + + cairo_test_log (ctx, + "Testing ps-eps with %s target\n", + target->name); + printf ("%s:\t", base_name); + fflush (stdout); + + cairo_surface_set_device_offset (surface, 25, 25); + cr = cairo_create (surface); + + cairo_new_sub_path (cr); + cairo_arc (cr, 100, 100, 25, 0, 2*M_PI); + cairo_set_line_width (cr, 10); + cairo_stroke (cr); + + cairo_show_page (cr); + + status = cairo_status (cr); + cairo_destroy (cr); + + if (status) { + cairo_test_log (ctx, "Error: Failed to create target surface: %s\n", + cairo_status_to_string (status)); + pass = FALSE; + } else { + pass = TRUE; + /* extract the image and compare it to our reference */ + if (! check_result (ctx, target, test_name, base_name, surface)) + pass = FALSE; + + /* check the bounding box of the EPS file and compare it to our reference */ + if (! check_bbox (ctx, base_name)) + pass = FALSE; + } + cairo_surface_destroy (surface); + if (target->cleanup) + target->cleanup (closure); + + free (base_name); + free (test_name); + + if (pass) { + printf ("PASS\n"); + ret = CAIRO_TEST_SUCCESS; + } else { + printf ("FAIL\n"); + ret = CAIRO_TEST_FAILURE; + } + fflush (stdout); + } + + return ret; +} + +CAIRO_TEST (ps_eps, + "Check EPS output from PS surface", + "ps, api", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/ps-features.c b/local/recipes/libs/cairo/source/test/ps-features.c new file mode 100644 index 0000000000..d1abf91fee --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ps-features.c @@ -0,0 +1,166 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#include +#include +#include + +/* This test exists to test the various features of cairo-ps.h. + * + * Currently, this test exercises the following function calls: + * + * cairo_ps_surface_set_size + * cairo_ps_surface_dsc_comment + * cairo_ps_surface_dsc_begin_setup + * cairo_ps_surface_dsc_begin_page_setup + */ + +#define INCHES_TO_POINTS(in) ((in) * 72.0) +#define MM_TO_POINTS(mm) ((mm) / 25.4 * 72.0) +#define TEXT_SIZE 12 +#define BASENAME "ps-features.out" + +static struct { + const char *page_size; + const char *page_size_alias; + const char *orientation; + double width_in_points; + double height_in_points; +} pages[] = { + {"na_letter_8.5x11in", "letter", "portrait", + INCHES_TO_POINTS(8.5), INCHES_TO_POINTS(11)}, + {"na_letter_8.5x11in", "letter", "landscape", + INCHES_TO_POINTS(11), INCHES_TO_POINTS(8.5)}, + {"iso_a4_210x297mm", "a4", "portrait", + MM_TO_POINTS(210), MM_TO_POINTS(297)}, + {"iso_a4_210x297mm", "a4", "landscape", + MM_TO_POINTS(297), MM_TO_POINTS(210)}, + {"iso_a5_148x210mm", "a5", "portrait", + MM_TO_POINTS(148), MM_TO_POINTS(210)}, + {"iso_a5_148x210mm", "a5", "landscape", + MM_TO_POINTS(210), MM_TO_POINTS(148)}, + {"iso_a6_105x148mm", "a6", "portrait", + MM_TO_POINTS(105), MM_TO_POINTS(148)}, + {"iso_a6_105x148mm", "a6", "landscape", + MM_TO_POINTS(148), MM_TO_POINTS(105)}, + {"iso_a7_74x105mm", "a7", "portrait", + MM_TO_POINTS(74), MM_TO_POINTS(105)}, + {"iso_a7_74x105mm", "a7", "landscape", + MM_TO_POINTS(105), MM_TO_POINTS(74)}, + {"iso_a8_52x74mm", "a8", "portrait", + MM_TO_POINTS(52), MM_TO_POINTS(74)}, + {"iso_a8_52x74mm", "a8", "landscape", + MM_TO_POINTS(74), MM_TO_POINTS(52)}, + {"iso_a9_37x52mm", "a9", "portrait", + MM_TO_POINTS(37), MM_TO_POINTS(52)}, + {"iso_a9_37x52mm", "a9", "landscape", + MM_TO_POINTS(52), MM_TO_POINTS(37)}, + {"iso_a10_26x37mm", "a10", "portrait", + MM_TO_POINTS(26), MM_TO_POINTS(37)}, + {"iso_a10_26x37mm", "a10", "landscape", + MM_TO_POINTS(37), MM_TO_POINTS(26)} +}; + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_surface_t *surface; + cairo_t *cr; + cairo_status_t status; + size_t i; + char dsc[255]; + char *filename; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + + if (! (cairo_test_is_target_enabled (ctx, "ps2") || + cairo_test_is_target_enabled (ctx, "ps3"))) + { + return CAIRO_TEST_UNTESTED; + } + + xasprintf (&filename, "%s/%s.ps", path, BASENAME); + /* We demonstrate that the initial size doesn't matter (we're + * passing 0,0), if we use cairo_ps_surface_set_size on the first + * page. */ + surface = cairo_ps_surface_create (filename, 0, 0); + + cairo_ps_surface_dsc_comment (surface, "%%Title: ps-features"); + cairo_ps_surface_dsc_comment (surface, "%%Copyright: Copyright (C) 2006 Red Hat, Inc."); + + cairo_ps_surface_dsc_begin_setup (surface); + cairo_ps_surface_dsc_comment (surface, "%%IncludeFeature: *PageSize letter"); + cairo_ps_surface_dsc_comment (surface, "%%IncludeFeature: *MediaColor White"); + + cr = cairo_create (surface); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + + for (i = 0; i < ARRAY_LENGTH (pages); i++) { + cairo_ps_surface_set_size (surface, + pages[i].width_in_points, + pages[i].height_in_points); + cairo_ps_surface_dsc_begin_page_setup (surface); + snprintf (dsc, 255, "%%IncludeFeature: *PageSize %s", pages[i].page_size_alias); + cairo_ps_surface_dsc_comment (surface, dsc); + if (i % 2) { + snprintf (dsc, 255, "%%IncludeFeature: *MediaType Glossy"); + cairo_ps_surface_dsc_comment (surface, dsc); + } + + cairo_move_to (cr, TEXT_SIZE, TEXT_SIZE); + cairo_show_text (cr, pages[i].page_size); + cairo_show_text (cr, " - "); + cairo_show_text (cr, pages[i].orientation); + cairo_show_page (cr); + } + + status = cairo_status (cr); + + cairo_destroy (cr); + cairo_surface_destroy (surface); + + if (status) { + cairo_test_log (ctx, "Failed to create ps surface for file %s: %s\n", + filename, cairo_status_to_string (status)); + free (filename); + return CAIRO_TEST_FAILURE; + } + + printf ("ps-features: Please check %s to ensure it looks/prints correctly.\n", filename); + free (filename); + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (ps_features, + "Check PS specific API", + "ps, api", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/ps-surface-source.c b/local/recipes/libs/cairo/source/test/ps-surface-source.c new file mode 100644 index 0000000000..16c677674c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ps-surface-source.c @@ -0,0 +1,53 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" +#include + +#include "surface-source.c" + +#define BASENAME "ps-surface-source.out" + +static cairo_surface_t * +create_source_surface (int size) +{ + cairo_surface_t *surface; + char *filename; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + + xasprintf (&filename, "%s/%s.ps", path, BASENAME); + surface = cairo_ps_surface_create (filename, size, size); + cairo_surface_set_fallback_resolution (surface, 72., 72.); + free (filename); + + return surface; +} + +CAIRO_TEST (ps_surface_source, + "Test using a PS surface as the source", + "source", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + preamble, draw) diff --git a/local/recipes/libs/cairo/source/test/ps2png.c b/local/recipes/libs/cairo/source/test/ps2png.c new file mode 100644 index 0000000000..cf98aed3b1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/ps2png.c @@ -0,0 +1,113 @@ +/* + * Copyright © 2008 Carlos Garcia Campos + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carlos Garcia Campos + */ + +#include +#include +#include +#include + +#define FAIL(msg) \ + do { fprintf (stderr, "FAIL: %s\n", msg); exit (-1); } while (0) + +static const char * +_spectre_render_page (const char *filename, + const char *page_label, + cairo_surface_t **surface_out) +{ + static const cairo_user_data_key_t key; + + SpectreDocument *document; + SpectreStatus status; + int width, height, stride; + unsigned char *pixels; + cairo_surface_t *surface; + + document = spectre_document_new (); + spectre_document_load (document, filename); + status = spectre_document_status (document); + if (status) { + spectre_document_free (document); + return spectre_status_to_string (status); + } + + if (page_label) { + SpectrePage *page; + SpectreRenderContext *rc; + + page = spectre_document_get_page_by_label (document, page_label); + spectre_document_free (document); + if (page == NULL) + return "page not found"; + + spectre_page_get_size (page, &width, &height); + rc = spectre_render_context_new (); + spectre_render_context_set_page_size (rc, width, height); + spectre_page_render (page, rc, &pixels, &stride); + spectre_render_context_free (rc); + status = spectre_page_status (page); + spectre_page_free (page); + if (status) { + free (pixels); + return spectre_status_to_string (status); + } + } else { + spectre_document_get_page_size (document, &width, &height); + spectre_document_render (document, &pixels, &stride); + spectre_document_free (document); + } + + surface = cairo_image_surface_create_for_data (pixels, + CAIRO_FORMAT_RGB24, + width, height, + stride); + cairo_surface_set_user_data (surface, &key, + pixels, (cairo_destroy_func_t) free); + *surface_out = surface; + return NULL; +} + +int main +(int argc, char *argv[]) +{ + const char *err; + cairo_surface_t *surface = NULL; /* silence compiler warning */ + cairo_status_t status; + + if (argc < 3 || argc > 4) + FAIL ("usage: ps2png input_file.ps output_file.png [page]"); + + err = _spectre_render_page (argv[1], argv[3], &surface); + if (err != NULL) + FAIL (err); + + status = cairo_surface_write_to_png (surface, argv[2]); + cairo_surface_destroy (surface); + + if (status != CAIRO_STATUS_SUCCESS) + FAIL (cairo_status_to_string (status)); + + return 0; +} diff --git a/local/recipes/libs/cairo/source/test/pthread-same-source.c b/local/recipes/libs/cairo/source/test/pthread-same-source.c new file mode 100644 index 0000000000..2b26d187dc --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pthread-same-source.c @@ -0,0 +1,192 @@ +/* + * Copyright 2009 Benjamin Otte + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + */ + +#define GENERATE_REFERENCE 0 + +#include "cairo-test.h" +#if !GENERATE_REFERENCE +#include +#endif + +#define N_THREADS 8 + +#define WIDTH 64 +#define HEIGHT 8 + +typedef struct { + cairo_surface_t *target; + cairo_surface_t *source; + int id; +} thread_data_t; + +static void * +draw_thread (void *arg) +{ + thread_data_t *thread_data = arg; + cairo_surface_t *surface; + cairo_pattern_t *pattern; + cairo_matrix_t pattern_matrix = { 2, 0, 0, 2, 0, 0 }; + cairo_t *cr; + int x, y; + + cr = cairo_create (thread_data->target); + cairo_surface_destroy (thread_data->target); + + pattern = cairo_pattern_create_for_surface (thread_data->source); + cairo_surface_destroy (thread_data->source); + cairo_pattern_set_extend (pattern, thread_data->id % 4); + cairo_pattern_set_filter (pattern, thread_data->id >= 4 ? CAIRO_FILTER_BILINEAR : CAIRO_FILTER_NEAREST); + cairo_pattern_set_matrix (pattern, &pattern_matrix); + + for (y = 0; y < HEIGHT; y++) { + for (x = 0; x < WIDTH; x++) { + cairo_save (cr); + cairo_translate (cr, 4 * x + 1, 4 * y + 1); + cairo_rectangle (cr, 0, 0, 2, 2); + cairo_set_source (cr, pattern); + cairo_fill (cr); + cairo_restore (cr); + } + } + cairo_pattern_destroy (pattern); + + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return surface; +} + +static cairo_surface_t * +create_source (cairo_surface_t *similar) +{ + cairo_surface_t *source; + cairo_t *cr; + double colors[4][3] = { + { 0.75, 0, 0 }, + { 0, 0.75, 0 }, + { 0, 0, 0.75 }, + { 0.75, 0.75, 0 } + }; + int i; + + source = cairo_surface_create_similar (similar, + CAIRO_CONTENT_COLOR_ALPHA, + 2, 2); + + cr = cairo_create (source); + cairo_surface_destroy (source); + + for (i = 0; i < 4; i++) { + cairo_set_source_rgb (cr, colors[i][0], colors[i][1], colors[i][2]); + cairo_rectangle (cr, i % 2, i / 2, 1, 1); + cairo_fill (cr); + } + + source = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return source; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ +#if !GENERATE_REFERENCE + pthread_t threads[N_THREADS]; +#endif + thread_data_t thread_data[N_THREADS]; + cairo_test_status_t test_status = CAIRO_TEST_SUCCESS; + cairo_surface_t *source; + cairo_status_t status; + int i; + + source = create_source (cairo_get_target (cr)); + status = cairo_surface_status (source); + if (status) { + cairo_surface_destroy (source); + return cairo_test_status_from_status (cairo_test_get_context (cr), + status); + } + + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_paint (cr); + + for (i = 0; i < N_THREADS; i++) { + thread_data[i].target = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + 4 * WIDTH, 4 * HEIGHT); + thread_data[i].source = cairo_surface_reference (source); + thread_data[i].id = i; +#if !GENERATE_REFERENCE + if (pthread_create (&threads[i], NULL, draw_thread, &thread_data[i]) != 0) { + threads[i] = pthread_self (); /* to indicate error */ + cairo_surface_destroy (thread_data[i].target); + cairo_surface_destroy (thread_data[i].source); + test_status = CAIRO_TEST_FAILURE; + break; + } +#else + { + cairo_surface_t *surface = draw_thread(&thread_data[i]); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + cairo_paint (cr); + + cairo_translate (cr, 0, 4 * HEIGHT); + } +#endif + } + + cairo_surface_destroy (source); + +#if !GENERATE_REFERENCE + for (i = 0; i < N_THREADS; i++) { + void *surface; + + if (pthread_equal (threads[i], pthread_self ())) + break; + + if (pthread_join (threads[i], &surface) == 0) { + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + cairo_paint (cr); + + cairo_translate (cr, 0, 4 * HEIGHT); + } else { + test_status = CAIRO_TEST_FAILURE; + } + } +#endif + + return test_status; +} + +CAIRO_TEST (pthread_same_source, + "Use the same source for drawing in different threads", + "threads", /* keywords */ + NULL, /* requirements */ + 4 * WIDTH, 4 * HEIGHT * N_THREADS, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/pthread-show-text.c b/local/recipes/libs/cairo/source/test/pthread-show-text.c new file mode 100644 index 0000000000..0f076cb61e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pthread-show-text.c @@ -0,0 +1,142 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +/* Test case for bug #4299: + + Assertion fails in "cairo-font.c" when using multithreads + https://bugs.freedesktop.org/show_bug.cgi?id=4299 +*/ + +#include "cairo-test.h" + +#include +#include +#include + +#define N_THREADS 8 +#define NUM_ITERATIONS 40 + +#define WIDTH 400 +#define HEIGHT 42 + +typedef struct { + cairo_surface_t *target; + int id; +} thread_data_t; + +static void * +draw_thread (void *arg) +{ + const char *text = "Hello world. "; + thread_data_t *thread_data = arg; + cairo_surface_t *surface; + cairo_font_extents_t extents; + cairo_t *cr; + int i; + + cr = cairo_create (thread_data->target); + cairo_surface_destroy (thread_data->target); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Serif", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, NUM_ITERATIONS); + cairo_font_extents (cr, &extents); + + cairo_move_to (cr, 1, HEIGHT - extents.descent - 1); + + for (i = 0; i < NUM_ITERATIONS; i++) { + char buf[2]; + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Serif", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, i); + + buf[0] = text[i%strlen(text)]; + buf[1] = '\0'; + cairo_show_text (cr, buf); + } + + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return surface; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + pthread_t threads[N_THREADS]; + thread_data_t thread_data[N_THREADS]; + cairo_test_status_t test_status = CAIRO_TEST_SUCCESS; + int i; + + for (i = 0; i < N_THREADS; i++) { + thread_data[i].target = cairo_surface_create_similar (cairo_get_target (cr), + cairo_surface_get_content (cairo_get_target (cr)), + WIDTH, HEIGHT); + thread_data[i].id = i; + if (pthread_create (&threads[i], NULL, draw_thread, &thread_data[i]) != 0) { + threads[i] = pthread_self (); /* to indicate error */ + cairo_surface_destroy (thread_data[i].target); + test_status = CAIRO_TEST_FAILURE; + break; + } + } + + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_paint (cr); + + for (i = 0; i < N_THREADS; i++) { + void *surface; + + if (pthread_equal (threads[i], pthread_self ())) + break; + + if (pthread_join (threads[i], &surface) == 0) { + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + cairo_paint (cr); + + cairo_translate (cr, 0, HEIGHT); + } else { + test_status = CAIRO_TEST_FAILURE; + } + } + + return test_status; +} + +CAIRO_TEST (pthread_show_text, + "Concurrent stress test of the cairo_show_text().", + "thread, text", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT * N_THREADS, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/pthread-similar.c b/local/recipes/libs/cairo/source/test/pthread-similar.c new file mode 100644 index 0000000000..a5f5e3bf4c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/pthread-similar.c @@ -0,0 +1,106 @@ +/* + * Copyright 2009 Benjamin Otte + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + */ + +#include "cairo-test.h" +#include + +#define N_THREADS 8 + +#define WIDTH 64 +#define HEIGHT 8 + +static void * +draw_thread (void *arg) +{ + cairo_surface_t *surface = arg; + cairo_t *cr; + int x, y; + + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + for (y = 0; y < HEIGHT; y++) { + for (x = 0; x < WIDTH; x++) { + cairo_rectangle (cr, x, y, 1, 1); + cairo_set_source_rgba (cr, 0, 0.75, 0.75, (double) x / WIDTH); + cairo_fill (cr); + } + } + + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return surface; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + pthread_t threads[N_THREADS]; + cairo_test_status_t test_status = CAIRO_TEST_SUCCESS; + int i; + + for (i = 0; i < N_THREADS; i++) { + cairo_surface_t *surface; + + surface = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR, + WIDTH, HEIGHT); + if (pthread_create (&threads[i], NULL, draw_thread, surface) != 0) { + threads[i] = pthread_self (); + test_status = cairo_test_status_from_status (cairo_test_get_context (cr), + cairo_surface_status (surface)); + cairo_surface_destroy (surface); + break; + } + } + + for (i = 0; i < N_THREADS; i++) { + void *surface; + + if (pthread_equal (threads[i], pthread_self ())) + break; + + if (pthread_join (threads[i], &surface) == 0) { + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + cairo_paint (cr); + + cairo_translate (cr, 0, HEIGHT); + } else { + test_status = CAIRO_TEST_FAILURE; + } + } + + return test_status; +} + +CAIRO_TEST (pthread_similar, + "Draw lots of 1x1 rectangles on similar surfaces in lots of threads", + "threads", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT * N_THREADS, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/push-group-color.c b/local/recipes/libs/cairo/source/test/push-group-color.c new file mode 100644 index 0000000000..1bc5bca9b0 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/push-group-color.c @@ -0,0 +1,141 @@ +/* + * Copyright © 2005 Mozilla Corporation + * Copyright © 2009 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Mozilla Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Mozilla Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Vladimir Vukicevic + * Chris Wilson + */ + +#include "cairo-test.h" + +#define UNIT_SIZE 100 +#define PAD 5 +#define INNER_PAD 10 + +#define WIDTH (UNIT_SIZE + PAD) + PAD +#define HEIGHT (UNIT_SIZE + PAD) + PAD + +static cairo_pattern_t * +argb32_source (void) +{ + cairo_surface_t *surface; + cairo_pattern_t *pattern; + cairo_t *cr; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 16, 16); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_rectangle (cr, 8, 0, 8, 8); + cairo_fill (cr); + + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_rectangle (cr, 0, 8, 8, 8); + cairo_fill (cr); + + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_rectangle (cr, 8, 8, 8, 8); + cairo_fill (cr); + + pattern = cairo_pattern_create_for_surface (cairo_get_target (cr)); + cairo_destroy (cr); + + return pattern; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *gradient, *image; + + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + + cairo_translate (cr, PAD, PAD); + + /* clip to the unit size */ + cairo_rectangle (cr, 0, 0, + UNIT_SIZE, UNIT_SIZE); + cairo_clip (cr); + + cairo_rectangle (cr, 0, 0, + UNIT_SIZE, UNIT_SIZE); + cairo_set_source_rgba (cr, 0, 0, 0, 1); + cairo_set_line_width (cr, 2); + cairo_stroke (cr); + + /* start a group */ + cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR); + + /* draw a gradient background */ + cairo_save (cr); + cairo_translate (cr, INNER_PAD, INNER_PAD); + cairo_new_path (cr); + cairo_rectangle (cr, 0, 0, + UNIT_SIZE - (INNER_PAD*2), UNIT_SIZE - (INNER_PAD*2)); + gradient = cairo_pattern_create_linear (UNIT_SIZE - (INNER_PAD*2), 0, + UNIT_SIZE - (INNER_PAD*2), UNIT_SIZE - (INNER_PAD*2)); + cairo_pattern_add_color_stop_rgba (gradient, 0.0, 0.3, 0.3, 0.3, 1.0); + cairo_pattern_add_color_stop_rgba (gradient, 1.0, 1.0, 1.0, 1.0, 1.0); + cairo_set_source (cr, gradient); + cairo_pattern_destroy (gradient); + cairo_fill (cr); + cairo_restore (cr); + + /* draw diamond */ + cairo_move_to (cr, UNIT_SIZE / 2, 0); + cairo_line_to (cr, UNIT_SIZE , UNIT_SIZE / 2); + cairo_line_to (cr, UNIT_SIZE / 2, UNIT_SIZE); + cairo_line_to (cr, 0 , UNIT_SIZE / 2); + cairo_close_path (cr); + cairo_set_source_rgba (cr, 0, 0, 1, 1); + cairo_fill (cr); + + /* draw circle */ + cairo_arc (cr, + UNIT_SIZE / 2, UNIT_SIZE / 2, + UNIT_SIZE / 3.5, + 0, M_PI * 2); + cairo_set_source_rgba (cr, 1, 0, 0, 1); + cairo_fill (cr); + + /* and put the image on top */ + cairo_translate (cr, UNIT_SIZE/2 - 8, UNIT_SIZE/2 - 8); + image = argb32_source (); + cairo_set_source (cr, image); + cairo_pattern_destroy (image); + cairo_paint (cr); + + cairo_pop_group_to_source (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (push_group_color, + "Verify that cairo_push_group_with_content works.", + "group", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/push-group-path-offset.c b/local/recipes/libs/cairo/source/test/push-group-path-offset.c new file mode 100644 index 0000000000..6b73ca4fa3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/push-group-path-offset.c @@ -0,0 +1,77 @@ +/* + * Copyright 2010 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + */ + +#include "cairo-test.h" + +#define CLIP_OFFSET 15 +#define CLIP_SIZE 20 + +#define WIDTH 50 +#define HEIGHT 50 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* Neutral gray background */ + cairo_set_source_rgb (cr, 0.51613, 0.55555, 0.51613); + cairo_paint (cr); + + /* the rest uses CAIRO_OPERATOR_SOURCE so we see better when something goes wrong */ + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + + /* add a rectangle */ + cairo_rectangle (cr, CLIP_OFFSET, CLIP_OFFSET, CLIP_SIZE, CLIP_SIZE); + + /* clip to the rectangle */ + cairo_clip_preserve (cr); + + /* push a group. We now have a device offset. */ + cairo_push_group (cr); + + /* push a group again. This is where the bug used to happen. */ + cairo_push_group (cr); + + /* draw something */ + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill_preserve (cr); + + /* make sure the stuff we drew ends up on the output */ + cairo_pop_group_to_source (cr); + cairo_fill_preserve (cr); + + cairo_pop_group_to_source (cr); + cairo_fill_preserve (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (push_group_path_offset, + "Exercises a bug in Cairo 1.9 where existing paths applied the target's" + " device offset twice when cairo_push_group() was called.", + "group, path", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/push-group.c b/local/recipes/libs/cairo/source/test/push-group.c new file mode 100644 index 0000000000..8e6ce19245 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/push-group.c @@ -0,0 +1,113 @@ +/* + * Copyright © 2005 Mozilla Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Mozilla Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Mozilla Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Vladimir Vukicevic + */ + +#include "cairo-test.h" + +#define UNIT_SIZE 100 +#define PAD 5 +#define INNER_PAD 10 + +#define WIDTH (UNIT_SIZE + PAD) + PAD +#define HEIGHT (UNIT_SIZE + PAD) + PAD + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *gradient; + int i, j; + + gradient = cairo_pattern_create_linear (UNIT_SIZE - (INNER_PAD*2), 0, + UNIT_SIZE - (INNER_PAD*2), UNIT_SIZE - (INNER_PAD*2)); + cairo_pattern_add_color_stop_rgba (gradient, 0.0, 0.3, 0.3, 0.3, 1.0); + cairo_pattern_add_color_stop_rgba (gradient, 1.0, 1.0, 1.0, 1.0, 1.0); + + for (j = 0; j < 1; j++) { + for (i = 0; i < 1; i++) { + double x = (i * UNIT_SIZE) + (i + 1) * PAD; + double y = (j * UNIT_SIZE) + (j + 1) * PAD; + + cairo_save (cr); + + cairo_translate (cr, x, y); + + /* draw a gradient background */ + cairo_save (cr); + cairo_translate (cr, INNER_PAD, INNER_PAD); + cairo_new_path (cr); + cairo_rectangle (cr, 0, 0, + UNIT_SIZE - (INNER_PAD*2), UNIT_SIZE - (INNER_PAD*2)); + cairo_set_source (cr, gradient); + cairo_fill (cr); + cairo_restore (cr); + + /* clip to the unit size */ + cairo_rectangle (cr, 0, 0, + UNIT_SIZE, UNIT_SIZE); + cairo_clip (cr); + + cairo_rectangle (cr, 0, 0, + UNIT_SIZE, UNIT_SIZE); + cairo_set_source_rgba (cr, 0, 0, 0, 1); + cairo_set_line_width (cr, 2); + cairo_stroke (cr); + + /* start a group */ + cairo_push_group (cr); + + /* draw diamond */ + cairo_move_to (cr, UNIT_SIZE / 2, 0); + cairo_line_to (cr, UNIT_SIZE , UNIT_SIZE / 2); + cairo_line_to (cr, UNIT_SIZE / 2, UNIT_SIZE); + cairo_line_to (cr, 0 , UNIT_SIZE / 2); + cairo_close_path (cr); + cairo_set_source_rgba (cr, 0, 0, 1, 1); + cairo_fill (cr); + + /* draw circle */ + cairo_arc (cr, + UNIT_SIZE / 2, UNIT_SIZE / 2, + UNIT_SIZE / 3.5, + 0, M_PI * 2); + cairo_set_source_rgba (cr, 1, 0, 0, 1); + cairo_fill (cr); + + cairo_pop_group_to_source (cr); + cairo_paint_with_alpha (cr, 0.5); + + cairo_restore (cr); + } + } + + cairo_pattern_destroy (gradient); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (push_group, + "Verify that cairo_push_group works.", + "group", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/quad-color.png b/local/recipes/libs/cairo/source/test/quad-color.png new file mode 100644 index 0000000000..0d68a82cc2 Binary files /dev/null and b/local/recipes/libs/cairo/source/test/quad-color.png differ diff --git a/local/recipes/libs/cairo/source/test/quartz-color-font.c b/local/recipes/libs/cairo/source/test/quartz-color-font.c new file mode 100644 index 0000000000..7dae214f64 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/quartz-color-font.c @@ -0,0 +1,54 @@ +/* + * Copyright © 2022 John Ralls + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#include "cairo-test.h" +#include + +#define WIDTH 100 +#define HEIGHT 50 + +#define FONT "Apple Color Emoji" + +static const char smiley_face_utf8[] = { 0xf0, 0x9f, 0x99, 0x82, 0x00 }; /* U+1F642 */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_select_font_face(cr, FONT, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, HEIGHT/2); + cairo_move_to (cr, width/5, 2*height/3); + + cairo_show_text(cr, smiley_face_utf8); + cairo_show_text(cr, smiley_face_utf8); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (quartz_color_font, + "Test color font", + "quartz, font", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/quartz-surface-source.c b/local/recipes/libs/cairo/source/test/quartz-surface-source.c new file mode 100644 index 0000000000..b0c86d0f9a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/quartz-surface-source.c @@ -0,0 +1,42 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" +#include "cairo-quartz.h" + +#include "surface-source.c" + +static cairo_surface_t * +create_source_surface (int size) +{ + return cairo_quartz_surface_create (CAIRO_FORMAT_ARGB32, size, size); +} + +CAIRO_TEST (quartz_surface_source, + "Test using a Quartz surface as the source", + "source", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + preamble, draw) diff --git a/local/recipes/libs/cairo/source/test/radial-gradient-extend.c b/local/recipes/libs/cairo/source/test/radial-gradient-extend.c new file mode 100644 index 0000000000..c32a2c37b2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/radial-gradient-extend.c @@ -0,0 +1,92 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2010 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +#define NUM_EXTEND 4 +#define HEIGHT 16 +#define WIDTH 16 +#define PAD 3 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + unsigned int i, j; + + cairo_extend_t extend[NUM_EXTEND] = { + CAIRO_EXTEND_NONE, + CAIRO_EXTEND_REPEAT, + CAIRO_EXTEND_REFLECT, + CAIRO_EXTEND_PAD + }; + + cairo_test_paint_checkered (cr); + + pattern = cairo_pattern_create_radial (WIDTH / 2, HEIGHT / 2, 0, WIDTH / 2, HEIGHT / 2, 2 * PAD); + + cairo_pattern_add_color_stop_rgb (pattern, 0, 0, 0, 1); + cairo_pattern_add_color_stop_rgb (pattern, 1, 0, 0, 1); + + cairo_translate (cr, PAD, PAD); + + for (i = 0; i < 2; i++) { + cairo_save (cr); + + for (j = 0; j < NUM_EXTEND; j++) { + cairo_pattern_set_extend (pattern, extend[j]); + + cairo_reset_clip (cr); + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + + if (i & 1) { + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_mask (cr, pattern); + } else { + cairo_set_source (cr, pattern); + cairo_paint (cr); + } + + cairo_translate (cr, WIDTH+PAD, 0); + } + + cairo_restore (cr); + cairo_translate (cr, 0, HEIGHT+PAD); + } + + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (radial_gradient_extend, + "Tests gradient to solid reduction of radial gradients", + "radial, pattern, extend", /* keywords */ + NULL, /* requirements */ + (WIDTH+PAD) * NUM_EXTEND + PAD, 2*(HEIGHT + PAD) + PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/radial-gradient.c b/local/recipes/libs/cairo/source/test/radial-gradient.c new file mode 100644 index 0000000000..026876b1b9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/radial-gradient.c @@ -0,0 +1,256 @@ +/* + * Copyright © 2005, 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define NUM_GRADIENTS 7 +#define NUM_EXTEND 4 +#define SIZE 120 +#define WIDTH (SIZE * NUM_GRADIENTS) +#define HEIGHT (SIZE * NUM_EXTEND) + +typedef void (*composite_t)(cairo_t *cr, cairo_pattern_t *pattern); +typedef void (*add_stops_t)(cairo_pattern_t *pattern); + +/* + * We want to test all the possible relative positions of the start + * and end circle: + * + * - The start circle can be smaller/equal/bigger than the end + * circle. A radial gradient can be classified in one of these + * three cases depending on the sign of dr. + * + * - The smaller circle can be completely inside/internally + * tangent/outside (at least in part) of the bigger circle. This + * classification is the same as the one which can be computed by + * examining the sign of a = (dx^2 + dy^2 - dr^2). + * + * - If the two circles have the same size, neither can be inside or + * internally tangent + * + * This test draws radial gradients whose circles always have the same + * centers (0, 0) and (1, 0), but with different radiuses. From left + * to right: + * + * - Small start circle completely inside the end circle + * 0.25 -> 1.75; dr = 1.5 > 0; a = 1 - 1.50^2 < 0 + * + * - Small start circle internally tangent to the end circle + * 0.50 -> 1.50; dr = 1.0 > 0; a = 1 - 1.00^2 = 0 + * + * - Small start circle outside of the end circle + * 0.50 -> 1.00; dr = 0.5 > 0; a = 1 - 0.50^2 > 0 + * + * - Start circle with the same size as the end circle + * 1.00 -> 1.00; dr = 0.0 = 0; a = 1 - 0.00^2 > 0 + * + * - Small end circle outside of the start circle + * 1.00 -> 0.50; dr = -0.5 > 0; a = 1 - 0.50^2 > 0 + * + * - Small end circle internally tangent to the start circle + * 1.50 -> 0.50; dr = -1.0 > 0; a = 1 - 1.00^2 = 0 + * + * - Small end circle completely inside the start circle + * 1.75 -> 0.25; dr = -1.5 > 0; a = 1 - 1.50^2 < 0 + * + */ + +static const double radiuses[NUM_GRADIENTS] = { + 0.25, + 0.50, + 0.50, + 1.00, + 1.00, + 1.50, + 1.75 +}; + +static cairo_pattern_t * +create_pattern (int index) +{ + double x0, x1, radius0, radius1, left, right, center; + + x0 = 0; + x1 = 1; + radius0 = radiuses[index]; + radius1 = radiuses[NUM_GRADIENTS - index - 1]; + + /* center the gradient */ + left = MIN (x0 - radius0, x1 - radius1); + right = MAX (x0 + radius0, x1 + radius1); + center = (left + right) * 0.5; + x0 -= center; + x1 -= center; + + /* scale to make it fit within a 1x1 rect centered in (0,0) */ + x0 *= 0.25; + x1 *= 0.25; + radius0 *= 0.25; + radius1 *= 0.25; + + return cairo_pattern_create_radial (x0, 0, radius0, x1, 0, radius1); +} + +static void +pattern_add_stops (cairo_pattern_t *pattern) +{ + cairo_pattern_add_color_stop_rgba (pattern, 0.0, 1, 0, 0, 0.75); + cairo_pattern_add_color_stop_rgba (pattern, sqrt (0.5), 0, 1, 0, 0); + cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0, 0, 1, 1); +} + +static void +pattern_add_single_stop (cairo_pattern_t *pattern) +{ + cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1, 0, 0, 1); +} + + +static cairo_test_status_t +draw (cairo_t *cr, add_stops_t add_stops, composite_t composite) +{ + int i, j; + cairo_extend_t extend[NUM_EXTEND] = { + CAIRO_EXTEND_NONE, + CAIRO_EXTEND_REPEAT, + CAIRO_EXTEND_REFLECT, + CAIRO_EXTEND_PAD + }; + + cairo_scale (cr, SIZE, SIZE); + cairo_translate (cr, 0.5, 0.5); + + for (j = 0; j < NUM_EXTEND; j++) { + cairo_save (cr); + for (i = 0; i < NUM_GRADIENTS; i++) { + cairo_pattern_t *pattern; + + pattern = create_pattern (i); + add_stops (pattern); + cairo_pattern_set_extend (pattern, extend[j]); + + cairo_save (cr); + cairo_rectangle (cr, -0.5, -0.5, 1, 1); + cairo_clip (cr); + composite (cr, pattern); + cairo_restore (cr); + cairo_pattern_destroy (pattern); + + cairo_translate (cr, 1, 0); + } + cairo_restore (cr); + cairo_translate (cr, 0, 1); + } + + return CAIRO_TEST_SUCCESS; +} + + +static void +composite_simple (cairo_t *cr, cairo_pattern_t *pattern) +{ + cairo_set_source (cr, pattern); + cairo_paint (cr); +} + +static void +composite_mask (cairo_t *cr, cairo_pattern_t *pattern) +{ + cairo_set_source_rgb (cr, 1, 0, 1); + cairo_mask (cr, pattern); +} + + +static cairo_test_status_t +draw_simple (cairo_t *cr, int width, int height) +{ + cairo_test_paint_checkered (cr); + return draw (cr, pattern_add_stops, composite_simple); +} + +static cairo_test_status_t +draw_mask (cairo_t *cr, int width, int height) +{ + cairo_test_paint_checkered (cr); + return draw (cr, pattern_add_stops, composite_mask); +} + +static cairo_test_status_t +draw_source (cairo_t *cr, int width, int height) +{ + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + return draw (cr, pattern_add_stops, composite_simple); +} + + +static cairo_test_status_t +draw_mask_source (cairo_t *cr, int width, int height) +{ + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + return draw (cr, pattern_add_stops, composite_mask); +} + +static cairo_test_status_t +draw_one_stop (cairo_t *cr, int width, int height) +{ + cairo_test_paint_checkered (cr); + return draw (cr, pattern_add_single_stop, composite_simple); +} + +CAIRO_TEST (radial_gradient, + "Simple test of radial gradients", + "gradient", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_simple) + +CAIRO_TEST (radial_gradient_mask, + "Simple test of radial gradients using a MASK", + "gradient,mask", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_mask) + +CAIRO_TEST (radial_gradient_source, + "Simple test of radial gradients using the SOURCE operator", + "gradient,source", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_source) + +CAIRO_TEST (radial_gradient_mask_source, + "Simple test of radial gradients using a MASK with a SOURCE operator", + "gradient,mask,source", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_mask_source) + +CAIRO_TEST (radial_gradient_one_stop, + "Tests radial gradients with a single stop", + "gradient,radial", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_one_stop) diff --git a/local/recipes/libs/cairo/source/test/radial-outer-focus.c b/local/recipes/libs/cairo/source/test/radial-outer-focus.c new file mode 100644 index 0000000000..e038947451 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/radial-outer-focus.c @@ -0,0 +1,72 @@ +/* + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Krzysztof Kosi\u0144ski + */ + +/* Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=40918 */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *radial; + double angle; + int i, j; + + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + angle = 0.0; + + for (i = 0; i < 4; i++) { + for (j = 0; j < 4; j++) { + cairo_save (cr); + cairo_rectangle (cr, 100*i, 100*j, 100, 100); + cairo_clip (cr); + + radial = cairo_pattern_create_radial (cos (angle), sin (angle), 0, + 0, 0, 1); + cairo_pattern_add_color_stop_rgb (radial, 0.0, 1, 0, 0); + cairo_pattern_add_color_stop_rgb (radial, 1.0, 0, 1, 0); + + cairo_translate (cr, 100*i+50, 100*j+50); + cairo_scale (cr, 50, -50); + cairo_set_source (cr, radial); + cairo_pattern_destroy (radial); + + cairo_paint(cr); + cairo_restore (cr); + + angle += M_PI/17; + } + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (radial_outer_focus, + "Exercises the condition of rendering a radial gradial on its outer focus", + "radial", /* keywords */ + NULL, /* requirements */ + 400, 400, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/random-clips.c b/local/recipes/libs/cairo/source/test/random-clips.c new file mode 100644 index 0000000000..31d7d6df04 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/random-clips.c @@ -0,0 +1,232 @@ +/* + * Copyright © 2006 M Joonas Pihlaja + * Copyright © 2011 Chris Wilson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Authors: + * M Joonas Pihlaja + * Chris Wilson + */ +#include "cairo-test.h" + +#define SIZE 512 +#define STEP (512+2) +#define NUM_SEGMENTS 128 + +static uint32_t state; + +static double +uniform_random (double minval, double maxval) +{ + static uint32_t const poly = 0x9a795537U; + uint32_t n = 32; + while (n-->0) + state = 2*state < state ? (2*state ^ poly) : 2*state; + return minval + state * (maxval - minval) / 4294967296.0; +} + +static void nz_path (cairo_t *cr) +{ + int i; + + state = 0xc0ffee; + + cairo_move_to (cr, 0, 0); + for (i = 0; i < NUM_SEGMENTS; i++) { + double x = uniform_random (0, SIZE); + double y = uniform_random (0, SIZE); + cairo_line_to (cr, x, y); + } + cairo_close_path (cr); +} + +static void region_path (cairo_t *cr) +{ + int i; + + state = 0xc0ffee; + + for (i = 0; i < NUM_SEGMENTS; i++) { + int x = uniform_random (0, SIZE); + int y = uniform_random (0, SIZE); + int w = uniform_random (0, 40); + int h = uniform_random (0, 40); + cairo_rectangle (cr, x, y, w, h); + } +} + +static void rectangle_path (cairo_t *cr) +{ + int i; + + state = 0xc0ffee; + + for (i = 0; i < NUM_SEGMENTS; i++) { + double x = uniform_random (0, SIZE); + double y = uniform_random (0, SIZE); + double w = uniform_random (0, 40); + double h = uniform_random (0, 40); + cairo_rectangle (cr, x, y, w, h); + } +} + +static void arc_path (cairo_t *cr) +{ + int i; + + state = 0xc0ffee; + + for (i = 0; i < NUM_SEGMENTS; i++) { + double x = uniform_random (0, SIZE); + double y = uniform_random (0, SIZE); + double r = uniform_random (0, 20); + cairo_new_sub_path (cr); + cairo_arc (cr, x, y, r, 0, 2*M_PI); + } +} + + +static void nz_fill_stroke (cairo_t *cr) +{ + nz_path (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill_preserve (cr); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_set_line_width (cr, 1.0); + cairo_stroke (cr); +} + +static void clip_to_quadrant (cairo_t *cr) +{ + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_clip (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING); + + state = 0xc0ffee; + cairo_translate (cr, 1, 1); + + /* no clipping */ + cairo_save (cr); { + clip_to_quadrant (cr); + + nz_fill_stroke (cr); + } cairo_restore (cr); + + cairo_translate (cr, STEP, 0); + + /* random clipping */ + cairo_save (cr); { + clip_to_quadrant (cr); + + nz_path (cr); + cairo_clip (cr); + + nz_fill_stroke (cr); + + cairo_set_source_rgba (cr, 1, 1, 1, 0.5); + cairo_paint (cr); + } cairo_restore (cr); + + cairo_translate (cr, STEP, 0); + + /* regional clipping */ + cairo_save (cr); { + clip_to_quadrant (cr); + + region_path (cr); + cairo_clip (cr); + + nz_fill_stroke (cr); + + cairo_set_source_rgba (cr, 1, 1, 1, 0.5); + cairo_paint (cr); + } cairo_restore (cr); + + cairo_translate (cr, -2*STEP, STEP); + + /* rectangular clipping */ + cairo_save (cr); { + clip_to_quadrant (cr); + + rectangle_path (cr); + cairo_clip (cr); + + nz_fill_stroke (cr); + + cairo_set_source_rgba (cr, 1, 1, 1, 0.5); + cairo_paint (cr); + } cairo_restore (cr); + + cairo_translate (cr, STEP, 0); + + /* circular clipping */ + cairo_save (cr); { + clip_to_quadrant (cr); + + arc_path (cr); + cairo_clip (cr); + + nz_fill_stroke (cr); + + cairo_set_source_rgba (cr, 1, 1, 1, 0.5); + cairo_paint (cr); + } cairo_restore (cr); + + cairo_translate (cr, STEP, 0); + + /* all-of-the-above clipping */ + cairo_save (cr); { + clip_to_quadrant (cr); + + nz_path (cr); + cairo_clip (cr); + region_path (cr); + cairo_clip (cr); + rectangle_path (cr); + cairo_clip (cr); + arc_path (cr); + cairo_clip (cr); + + nz_fill_stroke (cr); + + cairo_set_source_rgba (cr, 1, 1, 1, 0.5); + cairo_paint (cr); + } cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (random_clip, + "Tests the clip generation and intersection computation", + "trap, clip", /* keywords */ + NULL, /* requirements */ + 3*STEP+2, 2*STEP+2, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/random-intersections-curves-eo.c b/local/recipes/libs/cairo/source/test/random-intersections-curves-eo.c new file mode 100644 index 0000000000..84e9a75ded --- /dev/null +++ b/local/recipes/libs/cairo/source/test/random-intersections-curves-eo.c @@ -0,0 +1,84 @@ +/* + * Copyright © 2006 M Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: M Joonas Pihlaja + */ +#include "cairo-test.h" + +#define SIZE 512 +#define NUM_SEGMENTS 128 + +static uint32_t state; + +static double +uniform_random (double minval, double maxval) +{ + static uint32_t const poly = 0x9a795537U; + uint32_t n = 32; + while (n-->0) + state = 2*state < state ? (2*state ^ poly) : 2*state; + return minval + state * (maxval - minval) / 4294967296.0; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + state = 0x12345678; + cairo_translate (cr, 1, 1); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + + cairo_move_to (cr, 0, 0); + for (i = 0; i < NUM_SEGMENTS; i++) { + double y3 = uniform_random (0, SIZE); + double x3 = uniform_random (0, SIZE); + double y2 = uniform_random (-SIZE, SIZE); + double x2 = uniform_random (-SIZE, SIZE); + double y1 = uniform_random (-SIZE, SIZE); + double x1 = uniform_random (-SIZE, SIZE); + cairo_curve_to (cr, + x1, y1, + x2, y2, + x3, y3); + } + cairo_close_path (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill_preserve (cr); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_set_line_width (cr, 0.5); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (random_intersections_curves_eo, + "Tests the tessellator trapezoid generation and intersection computation", + "trap", /* keywords */ + NULL, /* requirements */ + SIZE+3, SIZE+3, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/random-intersections-curves-nz.c b/local/recipes/libs/cairo/source/test/random-intersections-curves-nz.c new file mode 100644 index 0000000000..5265e4a730 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/random-intersections-curves-nz.c @@ -0,0 +1,85 @@ +/* + * Copyright © 2006 M Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: M Joonas Pihlaja + */ +#include "cairo-test.h" + +#define SIZE 512 +#define NUM_SEGMENTS 128 + +static uint32_t state; + +static double +uniform_random (double minval, double maxval) +{ + static uint32_t const poly = 0x9a795537U; + uint32_t n = 32; + while (n-->0) + state = 2*state < state ? (2*state ^ poly) : 2*state; + return minval + state * (maxval - minval) / 4294967296.0; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + state = 0x12345678; + cairo_translate (cr, 1, 1); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING); + + cairo_move_to (cr, 0, 0); + for (i = 0; i < NUM_SEGMENTS; i++) { + double y3 = uniform_random (0, SIZE); + double x3 = uniform_random (0, SIZE); + double y2 = uniform_random (-SIZE, SIZE); + double x2 = uniform_random (-SIZE, SIZE); + double y1 = uniform_random (-SIZE, SIZE); + double x1 = uniform_random (-SIZE, SIZE); + cairo_curve_to (cr, + x1, y1, + x2, y2, + x3, y3); + } + cairo_close_path (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill_preserve (cr); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_set_line_width (cr, 0.5); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (random_intersections_curves_nz, + "Tests the tessellator trapezoid generation and intersection computation", + "trap", /* keywords */ + NULL, /* requirements */ + SIZE+3, SIZE+3, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/random-intersections-eo.c b/local/recipes/libs/cairo/source/test/random-intersections-eo.c new file mode 100644 index 0000000000..d35894f33c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/random-intersections-eo.c @@ -0,0 +1,78 @@ +/* + * Copyright © 2006 M Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: M Joonas Pihlaja + */ +#include "cairo-test.h" + +#define SIZE 512 +#define NUM_SEGMENTS 128 + +static uint32_t state; + +static double +uniform_random (double minval, double maxval) +{ + static uint32_t const poly = 0x9a795537U; + uint32_t n = 32; + while (n-->0) + state = 2*state < state ? (2*state ^ poly) : 2*state; + return minval + state * (maxval - minval) / 4294967296.0; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + state = 0x12345678; + cairo_translate (cr, 1, 1); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + + cairo_move_to (cr, 0, 0); + for (i = 0; i < NUM_SEGMENTS; i++) { + double x = uniform_random (0, width); + double y = uniform_random (0, height); + cairo_line_to (cr, x, y); + } + cairo_close_path (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill_preserve (cr); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_set_line_width (cr, 0.5); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (random_intersections_eo, + "Tests the tessellator trapezoid generation and intersection computation", + "trap", /* keywords */ + NULL, /* requirements */ + SIZE+3, SIZE+3, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/random-intersections-nonzero.c b/local/recipes/libs/cairo/source/test/random-intersections-nonzero.c new file mode 100644 index 0000000000..cad047e04b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/random-intersections-nonzero.c @@ -0,0 +1,79 @@ +/* + * Copyright © 2006 M Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: M Joonas Pihlaja + */ +#include "cairo-test.h" + +#define SIZE 512 +#define NUM_SEGMENTS 128 + +static uint32_t state; + +static double +uniform_random (double minval, double maxval) +{ + static uint32_t const poly = 0x9a795537U; + uint32_t n = 32; + while (n-->0) + state = 2*state < state ? (2*state ^ poly) : 2*state; + return minval + state * (maxval - minval) / 4294967296.0; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + state = 0x12345678; + cairo_translate (cr, 1, 1); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING); + + cairo_move_to (cr, 0, 0); + for (i = 0; i < NUM_SEGMENTS; i++) { + double x = uniform_random (0, width); + double y = uniform_random (0, height); + cairo_line_to (cr, x, y); + } + cairo_close_path (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill_preserve (cr); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_set_line_width (cr, 0.5); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (random_intersections_nonzero, + "Tests the tessellator trapezoid generation and intersection computation", + "trap", /* keywords */ + NULL, /* requirements */ + SIZE+3, SIZE+3, + NULL, draw) + + diff --git a/local/recipes/libs/cairo/source/test/raster-source.c b/local/recipes/libs/cairo/source/test/raster-source.c new file mode 100644 index 0000000000..ee2a570c33 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/raster-source.c @@ -0,0 +1,147 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#include +#include + +/* Basic test to exercise the new mime-surface callback. */ + +#define WIDTH 200 +#define HEIGHT 80 + +static char *png_filename = NULL; + +/* Lazy way of determining PNG dimensions... */ +static void +png_dimensions (const char *filename, + cairo_content_t *content, int *width, int *height) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_from_png (filename); + *content = cairo_surface_get_content (surface); + *width = cairo_image_surface_get_width (surface); + *height = cairo_image_surface_get_height (surface); + cairo_surface_destroy (surface); +} + +static cairo_surface_t * +png_acquire (cairo_pattern_t *pattern, void *closure, + cairo_surface_t *target, + const cairo_rectangle_int_t *extents) +{ + return cairo_image_surface_create_from_png (closure); +} + +static cairo_surface_t * +red_acquire (cairo_pattern_t *pattern, void *closure, + cairo_surface_t *target, + const cairo_rectangle_int_t *extents) +{ + cairo_surface_t *image; + cairo_t *cr; + + image = cairo_surface_create_similar_image (target, + CAIRO_FORMAT_RGB24, + extents->width, + extents->height); + cairo_surface_set_device_offset (image, extents->x, extents->y); + + cr = cairo_create (image); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + cairo_destroy (cr); + + return image; +} + +static void +release (cairo_pattern_t *pattern, void *closure, cairo_surface_t *image) +{ + cairo_surface_destroy (image); +} + +static void +free_filename(void) +{ + free (png_filename); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *png, *red; + cairo_content_t content; + int png_width, png_height; + int i, j; + + if (png_filename == NULL) { + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + xasprintf (&png_filename, "%s/png.png", ctx->srcdir); + atexit (free_filename); + } + + png_dimensions (png_filename, &content, &png_width, &png_height); + + png = cairo_pattern_create_raster_source ((void*)png_filename, + content, png_width, png_height); + cairo_raster_source_pattern_set_acquire (png, png_acquire, release); + + red = cairo_pattern_create_raster_source (NULL, + CAIRO_CONTENT_COLOR, WIDTH, HEIGHT); + cairo_raster_source_pattern_set_acquire (red, red_acquire, release); + + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + cairo_translate (cr, 0, (HEIGHT-png_height)/2); + for (i = 0; i < 4; i++) { + for (j = 0; j < 4; j++) { + cairo_pattern_t *source; + if ((i ^ j) & 1) + source = red; + else + source = png; + cairo_set_source (cr, source); + cairo_rectangle (cr, i * WIDTH/4, j * png_height/4, WIDTH/4, png_height/4); + cairo_fill (cr); + } + } + + cairo_pattern_destroy (red); + cairo_pattern_destroy (png); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (raster_source, + "Check that the mime-surface embedding works", + "api", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/record-extend.c b/local/recipes/libs/cairo/source/test/record-extend.c new file mode 100644 index 0000000000..8e83871517 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/record-extend.c @@ -0,0 +1,288 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Authors: + * Behdad Esfahbod + * Chris Wilson + */ + +#include "cairo-test.h" +#include +#include + +#define SIZE 90 + +/* This is written using clip+paint to exercise a bug that once was in the + * recording surface. + */ + +static cairo_surface_t * +source (cairo_surface_t *surface) +{ + cairo_t *cr; + + /* Create a 4-pixel image surface with my favorite four colors in each + * quadrant. */ + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + /* upper-left = white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_rectangle (cr, 0, 0, 1, 1); + cairo_fill (cr); + + /* upper-right = red */ + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_rectangle (cr, 1, 0, 1, 1); + cairo_fill (cr); + + /* lower-left = green */ + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_rectangle (cr, 0, 1, 1, 1); + cairo_fill (cr); + + /* lower-right = blue */ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_rectangle (cr, 1, 1, 1, 1); + cairo_fill (cr); + + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return surface; +} + +static cairo_surface_t * +image (cairo_t *cr) +{ + return source (cairo_image_surface_create (CAIRO_FORMAT_RGB24, 2, 2)); +} + +static cairo_surface_t * +similar (cairo_t *cr) +{ + return source (cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR, 2, 2)); +} + +static cairo_t * +extend (cairo_t *cr, cairo_surface_t *(*surface)(cairo_t *), cairo_extend_t mode) +{ + cairo_surface_t *s; + + cairo_set_source_rgb (cr, 0, 1, 1); + cairo_paint (cr); + + /* Now use extend modes to cover most of the surface with those 4 colors */ + s = surface (cr); + cairo_set_source_surface (cr, s, SIZE/2 - 1, SIZE/2 - 1); + cairo_surface_destroy (s); + + cairo_pattern_set_extend (cairo_get_source (cr), mode); + + cairo_rectangle (cr, 10, 10, SIZE-20, SIZE-20); + cairo_clip (cr); + cairo_paint (cr); + + return cr; +} + +static cairo_t * +extend_none (cairo_t *cr, + cairo_surface_t *(*pattern)(cairo_t *)) +{ + return extend (cr, pattern, CAIRO_EXTEND_NONE); +} + +static cairo_t * +extend_pad (cairo_t *cr, + cairo_surface_t *(*pattern)(cairo_t *)) +{ + return extend (cr, pattern, CAIRO_EXTEND_PAD); +} + +static cairo_t * +extend_repeat (cairo_t *cr, + cairo_surface_t *(*pattern)(cairo_t *)) +{ + return extend (cr, pattern, CAIRO_EXTEND_REPEAT); +} + +static cairo_t * +extend_reflect (cairo_t *cr, + cairo_surface_t *(*pattern)(cairo_t *)) +{ + return extend (cr, pattern, CAIRO_EXTEND_REFLECT); +} + +static cairo_t * +record_create (cairo_t *target) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_recording_surface_create (cairo_surface_get_content (cairo_get_target (target)), NULL); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_surface_t * +record_get (cairo_t *target) +{ + cairo_surface_t *surface; + + surface = cairo_surface_reference (cairo_get_target (target)); + cairo_destroy (target); + + return surface; +} + +static cairo_test_status_t +record_replay (cairo_t *cr, + cairo_t *(*func)(cairo_t *, + cairo_surface_t *(*pattern)(cairo_t *)), + cairo_surface_t *(*pattern)(cairo_t *), + int width, int height) +{ + cairo_surface_t *surface; + int x, y; + + surface = record_get (func (record_create (cr), pattern)); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_NONE); + + for (y = 0; y < height; y += 2) { + for (x = 0; x < width; x += 2) { + cairo_rectangle (cr, x, y, 2, 2); + cairo_clip (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + } + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +record_extend_none (cairo_t *cr, int width, int height) +{ + return record_replay (cr, extend_none, image, width, height); +} + +static cairo_test_status_t +record_extend_pad (cairo_t *cr, int width, int height) +{ + return record_replay (cr, extend_pad, image, width, height); +} + +static cairo_test_status_t +record_extend_repeat (cairo_t *cr, int width, int height) +{ + return record_replay (cr, extend_repeat, image, width, height); +} + +static cairo_test_status_t +record_extend_reflect (cairo_t *cr, int width, int height) +{ + return record_replay (cr, extend_reflect, image, width, height); +} + +static cairo_test_status_t +record_extend_none_similar (cairo_t *cr, int width, int height) +{ + return record_replay (cr, extend_none, similar, width, height); +} + +static cairo_test_status_t +record_extend_pad_similar (cairo_t *cr, int width, int height) +{ + return record_replay (cr, extend_pad, similar, width, height); +} + +static cairo_test_status_t +record_extend_repeat_similar (cairo_t *cr, int width, int height) +{ + return record_replay (cr, extend_repeat, similar, width, height); +} + +static cairo_test_status_t +record_extend_reflect_similar (cairo_t *cr, int width, int height) +{ + return record_replay (cr, extend_reflect, similar, width, height); +} + +CAIRO_TEST (record_extend_none, + "Test CAIRO_EXTEND_NONE for recorded surface patterns", + "record, extend", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, record_extend_none) +CAIRO_TEST (record_extend_pad, + "Test CAIRO_EXTEND_PAD for recorded surface patterns", + "record, extend", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, record_extend_pad) +CAIRO_TEST (record_extend_repeat, + "Test CAIRO_EXTEND_REPEAT for recorded surface patterns", + "record, extend", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, record_extend_repeat) +CAIRO_TEST (record_extend_reflect, + "Test CAIRO_EXTEND_REFLECT for recorded surface patterns", + "record, extend", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, record_extend_reflect) + +CAIRO_TEST (record_extend_none_similar, + "Test CAIRO_EXTEND_NONE for recorded surface patterns", + "record, extend", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, record_extend_none_similar) +CAIRO_TEST (record_extend_pad_similar, + "Test CAIRO_EXTEND_PAD for recorded surface patterns", + "record, extend", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, record_extend_pad_similar) +CAIRO_TEST (record_extend_repeat_similar, + "Test CAIRO_EXTEND_REPEAT for recorded surface patterns", + "record, extend", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, record_extend_repeat_similar) +CAIRO_TEST (record_extend_reflect_similar, + "Test CAIRO_EXTEND_REFLECT for recorded surface patterns", + "record, extend", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, record_extend_reflect_similar) diff --git a/local/recipes/libs/cairo/source/test/record-mesh.c b/local/recipes/libs/cairo/source/test/record-mesh.c new file mode 100644 index 0000000000..754a1d430d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/record-mesh.c @@ -0,0 +1,166 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * Copyright © 2009 Adrian Johnson + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Authors: + * Behdad Esfahbod + * Adrian Johnson + * Chris Wilson + */ + +#include "cairo-test.h" +#include +#include + +#define PAT_WIDTH 170 +#define PAT_HEIGHT 170 +#define SIZE PAT_WIDTH +#define PAD 2 +#define WIDTH (PAD + SIZE + PAD) +#define HEIGHT WIDTH + +/* This test is designed to paint a mesh pattern. The mesh contains + * two overlapping patches */ + +static cairo_pattern_t * +mesh (void) +{ + cairo_pattern_t *pattern; + + pattern = cairo_pattern_create_mesh (); + + cairo_mesh_pattern_begin_patch (pattern); + + cairo_mesh_pattern_move_to (pattern, 0, 0); + cairo_mesh_pattern_curve_to (pattern, 30, -30, 60, 30, 100, 0); + cairo_mesh_pattern_curve_to (pattern, 60, 30, 130, 60, 100, 100); + cairo_mesh_pattern_curve_to (pattern, 60, 70, 30, 130, 0, 100); + cairo_mesh_pattern_curve_to (pattern, 30, 70, -30, 30, 0, 0); + + cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 1, 0, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 0, 1, 0); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, 0, 0, 1); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 1, 0); + + cairo_mesh_pattern_end_patch (pattern); + + cairo_mesh_pattern_begin_patch (pattern); + + cairo_mesh_pattern_move_to (pattern, 50, 50); + cairo_mesh_pattern_curve_to (pattern, 80, 20, 110, 80, 150, 50); + cairo_mesh_pattern_curve_to (pattern, 110, 80, 180, 110, 150, 150); + cairo_mesh_pattern_curve_to (pattern, 110, 120, 80, 180, 50, 150); + cairo_mesh_pattern_curve_to (pattern, 80, 120, 20, 80, 50, 50); + + cairo_mesh_pattern_set_corner_color_rgba (pattern, 0, 1, 0, 0, 0.3); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 0, 1, 0); + cairo_mesh_pattern_set_corner_color_rgba (pattern, 2, 0, 0, 1, 0.3); + cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 1, 0); + + cairo_mesh_pattern_end_patch (pattern); + + return pattern; +} + +static cairo_t * +draw (cairo_t *cr) +{ + cairo_pattern_t *source; + + cairo_set_source_rgb (cr, 0, 1, 1); + cairo_paint (cr); + + source = mesh (); + cairo_set_source (cr, source); + cairo_pattern_destroy (source); + + cairo_rectangle (cr, 10, 10, SIZE-20, SIZE-20); + cairo_clip (cr); + cairo_paint (cr); + + return cr; +} + +static cairo_t * +record_create (cairo_t *target) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_recording_surface_create (cairo_surface_get_content (cairo_get_target (target)), NULL); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_surface_t * +record_get (cairo_t *target) +{ + cairo_surface_t *surface; + + surface = cairo_surface_reference (cairo_get_target (target)); + cairo_destroy (target); + + return surface; +} + +static cairo_test_status_t +record_replay (cairo_t *cr, cairo_t *(*func)(cairo_t *), int width, int height) +{ + cairo_surface_t *surface; + int x, y; + + surface = record_get (func (record_create (cr))); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_NONE); + + for (y = 0; y < height; y += 2) { + for (x = 0; x < width; x += 2) { + cairo_rectangle (cr, x, y, 2, 2); + cairo_clip (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + } + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +record_mesh (cairo_t *cr, int width, int height) +{ + return record_replay (cr, draw, width, height); +} + +CAIRO_TEST (record_mesh, + "Paint mesh pattern through a recording surface", + "record,mesh,pattern", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, record_mesh) + diff --git a/local/recipes/libs/cairo/source/test/record-neg-extents.c b/local/recipes/libs/cairo/source/test/record-neg-extents.c new file mode 100644 index 0000000000..29a2aa1e61 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/record-neg-extents.c @@ -0,0 +1,217 @@ +/* + * Copyright © 2016 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Authors: + * Adrian Johnson + */ + +#include "cairo-test.h" +#include +#include + +#define PAT_SIZE 64 +#define PAD (PAT_SIZE/8) +#define WIDTH (PAT_SIZE*4 + PAD*5) +#define HEIGHT (PAT_SIZE + PAD*2) + +/* Test case based on bug 89232 - painting a recording surface to a pdf/ps surface + * omits objects on the recording surface with negative coordinates even though + * the pattern matrix has transformed the objects to within the page extents. + * The bug is a result of pdf/ps assuming the surface extents are always + * (0,0) to (page_width, page_height). + * + * Each test has four cases of painting a recording pattern where: + * 1) recording surface origin is transformed to the center of the pattern + * 2) same as 1) but also scaled up 10x + * 3) same as 1) but also scaled down 10x + * 4) same as 1) but also rotated 45 deg + */ + + +static void +transform_extents(cairo_rectangle_t *extents, cairo_matrix_t *mat) +{ + double x1, y1, x2, y2, x, y; + +#define UPDATE_BBOX \ + x1 = x < x1 ? x : x1; \ + y1 = y < y1 ? y : y1; \ + x2 = x > x2 ? x : x2; \ + y2 = y > y2 ? y : y2; + + x = extents->x; + y = extents->y; + cairo_matrix_transform_point (mat, &x, &y); + x1 = x2 = x; + y1 = y2 = y; + + x = extents->x + extents->width; + y = extents->y; + cairo_matrix_transform_point (mat, &x, &y); + UPDATE_BBOX; + + x = extents->x; + y = extents->y + extents->height; + cairo_matrix_transform_point (mat, &x, &y); + UPDATE_BBOX; + + x = extents->x + extents->width; + y = extents->y + extents->height; + cairo_matrix_transform_point (mat, &x, &y); + UPDATE_BBOX; + + extents->x = x1; + extents->y = y1; + extents->width = x2 - extents->x; + extents->height = y2 - extents->y; + +#undef UPDATE_BBOX +} + +static cairo_pattern_t * +create_pattern (cairo_matrix_t *mat, cairo_bool_t bounded) +{ + cairo_surface_t *surf; + cairo_pattern_t *pat; + cairo_t *cr; + int border; + int square; + + if (bounded) { + cairo_rectangle_t extents = { 0, 0, PAT_SIZE, PAT_SIZE }; + transform_extents (&extents, mat); + surf = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, &extents); + } else { + surf = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + } + + cr = cairo_create (surf); + cairo_transform (cr, mat); + + border = PAT_SIZE/8; + square = (PAT_SIZE - 2*border)/2; + + cairo_rectangle (cr, 0, 0, PAT_SIZE, PAT_SIZE); + cairo_clip (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + cairo_translate (cr, border, border); + cairo_rectangle (cr, 0, 0, square, square); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_fill (cr); + + cairo_translate (cr, square, 0); + cairo_rectangle (cr, 0, 0, square, square); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_fill (cr); + + cairo_translate (cr, 0, square); + cairo_rectangle (cr, 0, 0, square, square); + cairo_set_source_rgb (cr, 0, 1, 1); + cairo_fill (cr); + + cairo_translate (cr, -square, 0); + cairo_rectangle (cr, 0, 0, square, square); + cairo_set_source_rgb (cr, 1, 1, 0); + cairo_fill (cr); + + cairo_destroy (cr); + + pat = cairo_pattern_create_for_surface (surf); + cairo_surface_destroy (surf); + cairo_pattern_set_matrix (pat, mat); + + return pat; +} + +static cairo_test_status_t +record_extents (cairo_t *cr, int width, int height, cairo_bool_t bounded) +{ + cairo_pattern_t *pat; + cairo_matrix_t mat; + + /* record surface extents (-PAT_SIZE/2, -PAT_SIZE/2) to (PAT_SIZE/2, PAT_SIZE/2) */ + cairo_translate (cr, PAD, PAD); + cairo_matrix_init_translate (&mat, -PAT_SIZE/2, -PAT_SIZE/2); + pat = create_pattern (&mat, bounded); + cairo_set_source (cr, pat); + cairo_pattern_destroy (pat); + cairo_paint (cr); + + /* record surface extents (-10*PAT_SIZE/2, -10*PAT_SIZE/2) to (10*PAT_SIZE/2, 10*PAT_SIZE/2) */ + cairo_translate (cr, PAT_SIZE + PAD, 0); + cairo_matrix_init_translate (&mat, -10.0*PAT_SIZE/2, -10.0*PAT_SIZE/2); + cairo_matrix_scale (&mat, 10, 10); + pat = create_pattern (&mat, bounded); + cairo_set_source (cr, pat); + cairo_pattern_destroy (pat); + cairo_paint (cr); + + /* record surface extents (-0.1*PAT_SIZE/2, -0.1*PAT_SIZE/2) to (0.1*PAT_SIZE/2, 0.1*PAT_SIZE/2) */ + cairo_translate (cr, PAT_SIZE + PAD, 0); + cairo_matrix_init_translate (&mat, -0.1*PAT_SIZE/2, -0.1*PAT_SIZE/2); + cairo_matrix_scale (&mat, 0.1, 0.1); + pat = create_pattern (&mat, bounded); + cairo_set_source (cr, pat); + cairo_pattern_destroy (pat); + cairo_paint (cr); + + /* record surface centered on (0,0) and rotated 45 deg */ + cairo_translate (cr, PAT_SIZE + PAD, 0); + cairo_matrix_init_translate (&mat, -PAT_SIZE/sqrt(2), -PAT_SIZE/sqrt(2)); + cairo_matrix_rotate (&mat, M_PI/4.0); + cairo_matrix_translate (&mat, PAT_SIZE/2, -PAT_SIZE/2); + pat = create_pattern (&mat, bounded); + cairo_set_source (cr, pat); + cairo_pattern_destroy (pat); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +record_neg_extents_bounded (cairo_t *cr, int width, int height) +{ + return record_extents(cr, width, height, TRUE); +} + +static cairo_test_status_t +record_neg_extents_unbounded (cairo_t *cr, int width, int height) +{ + return record_extents(cr, width, height, FALSE); +} + + +CAIRO_TEST (record_neg_extents_unbounded, + "Paint unbounded recording pattern with untransformed extents outside of target extents", + "record,transform,pattern", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, record_neg_extents_unbounded) +CAIRO_TEST (record_neg_extents_bounded, + "Paint bounded recording pattern with untransformed extents outside of target extents", + "record,transform,pattern", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, record_neg_extents_bounded) diff --git a/local/recipes/libs/cairo/source/test/record-replay-extend.c b/local/recipes/libs/cairo/source/test/record-replay-extend.c new file mode 100644 index 0000000000..4a41233592 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/record-replay-extend.c @@ -0,0 +1,227 @@ +/* + * Copyright © 2016 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Authors: + * Adrian Johnson + */ + +#include "cairo-test.h" +#include +#include + +#define PAT_SIZE 32 +#define REPLAY_SIZE (PAT_SIZE*4) +#define PAD 10 +#define WIDTH (REPLAY_SIZE*4 + PAD*5) +#define HEIGHT (REPLAY_SIZE + PAD*2) + +/* Test replaying a recording surface pattern for each type of extend. */ + +static void +transform_extents(cairo_rectangle_t *extents, cairo_matrix_t *mat) +{ + double x1, y1, x2, y2, x, y; + +#define UPDATE_BBOX \ + x1 = x < x1 ? x : x1; \ + y1 = y < y1 ? y : y1; \ + x2 = x > x2 ? x : x2; \ + y2 = y > y2 ? y : y2; + + x = extents->x; + y = extents->y; + cairo_matrix_transform_point (mat, &x, &y); + x1 = x2 = x; + y1 = y2 = y; + + x = extents->x + extents->width; + y = extents->y; + cairo_matrix_transform_point (mat, &x, &y); + UPDATE_BBOX; + + x = extents->x; + y = extents->y + extents->height; + cairo_matrix_transform_point (mat, &x, &y); + UPDATE_BBOX; + + x = extents->x + extents->width; + y = extents->y + extents->height; + cairo_matrix_transform_point (mat, &x, &y); + UPDATE_BBOX; + + extents->x = x1; + extents->y = y1; + extents->width = x2 - extents->x; + extents->height = y2 - extents->y; + +#undef UPDATE_BBOX +} + +static cairo_pattern_t * +create_pattern (cairo_matrix_t *mat, cairo_extend_t extend) +{ + cairo_surface_t *surf; + cairo_pattern_t *pat; + cairo_t *cr; + cairo_rectangle_t extents = { 0, 0, PAT_SIZE, PAT_SIZE }; + + transform_extents (&extents, mat); + surf = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, &extents); + + cr = cairo_create (surf); + cairo_transform (cr, mat); + + cairo_rectangle (cr, 0, 0, PAT_SIZE/2, PAT_SIZE/2); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill (cr); + + cairo_translate (cr, PAT_SIZE/2, 0); + cairo_rectangle (cr, 0, 0, PAT_SIZE/2, PAT_SIZE/2); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_fill (cr); + + cairo_translate (cr, 0, PAT_SIZE/2); + cairo_rectangle (cr, 0, 0, PAT_SIZE/2, PAT_SIZE/2); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_fill (cr); + + cairo_translate (cr, -PAT_SIZE/2, 0); + cairo_rectangle (cr, 0, 0, PAT_SIZE/2, PAT_SIZE/2); + cairo_set_source_rgb (cr, 1, 1, 0); + cairo_fill (cr); + + cairo_destroy (cr); + + pat = cairo_pattern_create_for_surface (surf); + cairo_surface_destroy (surf); + cairo_pattern_set_matrix (pat, mat); + cairo_pattern_set_extend (pat, extend); + cairo_pattern_set_filter (pat, CAIRO_FILTER_NEAREST); + + return pat; +} + +static cairo_test_status_t +record_replay_extend (cairo_t *cr, int width, int height, cairo_extend_t extend) +{ + cairo_pattern_t *pat; + cairo_matrix_t mat; + + /* record surface extents (-PAT_SIZE/2, -PAT_SIZE/2) to (PAT_SIZE/2, PAT_SIZE/2) */ + cairo_translate (cr, PAD, PAD); + cairo_matrix_init_translate (&mat, -PAT_SIZE/2, -PAT_SIZE/2); + pat = create_pattern (&mat, extend); + + /* test repeating patterns when the source is outside of the target clip */ + if (extend == CAIRO_EXTEND_REPEAT || extend == CAIRO_EXTEND_REFLECT) { + cairo_matrix_init_translate (&mat, 3*PAT_SIZE/2, 3*PAT_SIZE/2); + cairo_pattern_set_matrix (pat, &mat); + } + + cairo_set_source (cr, pat); + cairo_pattern_destroy (pat); + cairo_rectangle (cr, 0, 0, REPLAY_SIZE, REPLAY_SIZE); + cairo_fill (cr); + + /* record surface extents (-2*PAT_SIZE/2, -2*PAT_SIZE/2) to (2*PAT_SIZE/2, 2*PAT_SIZE/2) */ + cairo_translate (cr, REPLAY_SIZE + PAD, 0); + cairo_matrix_init_translate (&mat, -2.0*PAT_SIZE/2, -2.0*PAT_SIZE/2); + cairo_matrix_scale (&mat, 2, 2); + pat = create_pattern (&mat, extend); + cairo_set_source (cr, pat); + cairo_pattern_destroy (pat); + cairo_rectangle (cr, 0, 0, REPLAY_SIZE, REPLAY_SIZE); + cairo_fill (cr); + + /* record surface extents (-0.5*PAT_SIZE/2, -0.5*PAT_SIZE/2) to (0.5*PAT_SIZE/2, 0.5*PAT_SIZE/2) */ + cairo_translate (cr, REPLAY_SIZE + PAD, 0); + cairo_matrix_init_translate (&mat, -0.5*PAT_SIZE/2, -0.5*PAT_SIZE/2); + cairo_matrix_scale (&mat, 0.5, 0.5); + pat = create_pattern (&mat, extend); + cairo_set_source (cr, pat); + cairo_pattern_destroy (pat); + cairo_rectangle (cr, 0, 0, REPLAY_SIZE, REPLAY_SIZE); + cairo_fill (cr); + + /* record surface centered on (0,0) and rotated 45 deg */ + cairo_translate (cr, REPLAY_SIZE + PAD, 0); + cairo_matrix_init_translate (&mat, -PAT_SIZE/sqrt(2), -PAT_SIZE/sqrt(2)); + cairo_matrix_rotate (&mat, M_PI/4.0); + cairo_matrix_translate (&mat, PAT_SIZE/2, -PAT_SIZE/2); + pat = create_pattern (&mat, extend); + cairo_set_source (cr, pat); + cairo_pattern_destroy (pat); + cairo_rectangle (cr, 0, 0, REPLAY_SIZE, REPLAY_SIZE); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +record_replay_extend_none (cairo_t *cr, int width, int height) +{ + return record_replay_extend (cr, width, height, CAIRO_EXTEND_NONE); +} + +static cairo_test_status_t +record_replay_extend_repeat (cairo_t *cr, int width, int height) +{ + return record_replay_extend (cr, width, height, CAIRO_EXTEND_REPEAT); +} + +static cairo_test_status_t +record_replay_extend_reflect (cairo_t *cr, int width, int height) +{ + return record_replay_extend (cr, width, height, CAIRO_EXTEND_REFLECT); +} + +static cairo_test_status_t +record_replay_extend_pad (cairo_t *cr, int width, int height) +{ + return record_replay_extend (cr, width, height, CAIRO_EXTEND_PAD); +} + +CAIRO_TEST (record_replay_extend_none, + "Paint recording pattern with CAIRO_EXTEND_NONE", + "record,pattern,extend", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, record_replay_extend_none) +CAIRO_TEST (record_replay_extend_repeat, + "Paint recording pattern with CAIRO_EXTEND_REPEAT", + "record,pattern,extend", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, record_replay_extend_repeat) +CAIRO_TEST (record_replay_extend_reflect, + "Paint recording pattern with CAIRO_EXTEND_REFLECT", + "record,pattern,extend", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, record_replay_extend_reflect) +CAIRO_TEST (record_replay_extend_pad, + "Paint recording pattern with CAIRO_EXTEND_PAD", + "record,pattern,extend", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, record_replay_extend_pad) diff --git a/local/recipes/libs/cairo/source/test/record-transform-paint.c b/local/recipes/libs/cairo/source/test/record-transform-paint.c new file mode 100644 index 0000000000..0ccc2277f1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/record-transform-paint.c @@ -0,0 +1,64 @@ +/* + * Copyright © 2021 Anton Danilkin + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface2 = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + { + cairo_t *cr2 = cairo_create (surface2); + cairo_surface_t *surface3 = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + { + cairo_t *cr3 = cairo_create (surface3); + cairo_pattern_t *pattern4 = cairo_pattern_create_linear (0.0, 0.0, width, height); + cairo_pattern_add_color_stop_rgb (pattern4, 0, 0, 1, 0); + cairo_pattern_add_color_stop_rgb (pattern4, 1, 0, 0, 1); + cairo_set_source (cr3, pattern4); + cairo_paint (cr3); + } + cairo_pattern_t *pattern3 = cairo_pattern_create_for_surface (surface3); + cairo_matrix_t matrix3; + cairo_matrix_init_scale (&matrix3, 2, 2); + cairo_pattern_set_matrix (pattern3, &matrix3); + cairo_set_source (cr2, pattern3); + cairo_paint (cr2); + } + cairo_pattern_t *pattern2 = cairo_pattern_create_for_surface (surface2); + cairo_matrix_t matrix2; + cairo_matrix_init_scale (&matrix2, 5, 5); + cairo_pattern_set_matrix (pattern2, &matrix2); + cairo_set_source (cr, pattern2); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (record_transform_paint, + "Tests paint in nested transformed recording patterns", + "record, paint", /* keywords */ + NULL, /* requirements */ + 512, 512, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/record-write-png.c b/local/recipes/libs/cairo/source/test/record-write-png.c new file mode 100644 index 0000000000..da0e253bd5 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/record-write-png.c @@ -0,0 +1,136 @@ +/* + * Copyright © 2021 Matthias Clasen + * Copyright © 2021 Uli Schlachter + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: + * Matthias Clasen + * Uli Schlachter + */ + +// Test case for https://gitlab.freedesktop.org/cairo/cairo/-/merge_requests/118 +// A recording surface with a non-zero origin gets cut off when passed to +// cairo_surface_write_to_png(). + +#include "cairo-test.h" + +#include + +struct buffer { + char *data; + size_t length; +}; + +static cairo_surface_t * +prepare_recording (void) +{ + cairo_surface_t *surface; + cairo_rectangle_t rect; + cairo_t *cr; + + rect.x = -1; + rect.y = -2; + rect.width = 3; + rect.height = 4; + surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, &rect); + + cr = cairo_create (surface); + cairo_set_line_width (cr, 1); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_rectangle (cr, 0.5, -0.5, 1., 1.); + cairo_stroke (cr); + cairo_destroy (cr); + + return surface; +} + +static cairo_status_t +write_callback (void *closure, const unsigned char *data, unsigned int length) +{ + struct buffer *buffer = closure; + + buffer->data = realloc (buffer->data, buffer->length + length); + memcpy (&buffer->data[buffer->length], data, length); + buffer->length += length; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +read_callback (void *closure, unsigned char *data, unsigned int length) +{ + struct buffer *buffer = closure; + + assert (buffer->length >= length); + memcpy (data, buffer->data, length); + buffer->data += length; + buffer->length -= length; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_surface_t * +png_round_trip (cairo_surface_t *input_surface) +{ + cairo_surface_t *output_surface; + struct buffer buffer; + void *to_free; + + // Turn the surface into a PNG + buffer.data = NULL; + buffer.length = 0; + cairo_surface_write_to_png_stream (input_surface, write_callback, &buffer); + to_free = buffer.data; + + // Load the PNG again + output_surface = cairo_image_surface_create_from_png_stream (read_callback, &buffer); + + free (to_free); + return output_surface; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *recording, *surface; + + // Draw a black background so that the output does not vary with alpha + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + recording = prepare_recording (); + surface = png_round_trip (recording); + + cairo_set_source_surface (cr, surface, 0, 0); + cairo_paint (cr); + + cairo_surface_destroy (recording); + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (record_write_png, + "Test writing to png with non-zero origin", + "record, transform", /* keywords */ + NULL, /* requirements */ + 4, 4, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/record.c b/local/recipes/libs/cairo/source/test/record.c new file mode 100644 index 0000000000..bc5e1f72e9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/record.c @@ -0,0 +1,502 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: + * Carl D. Worth + * Chris Wilson + */ + +#include "cairo-test.h" + +#define TEXT_SIZE 12 +#define SIZE 60 /* needs to be big to check large area effects (dithering) */ +#define PAD 2 + +#define TT_SIZE 100 +#define TT_PAD 5 +#define TT_FONT_SIZE 32.0 + +#define GENERATE_REF 0 + +static uint32_t data[16] = { + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff, + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff +}; + +static const char *unique_id = "data"; + +static const char *png_filename = "romedalen.png"; + +static cairo_t * +paint (cairo_t *cr) +{ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + cairo_translate (cr, 2, 2); + cairo_scale (cr, 0.5, 0.5); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + return cr; +} + +static cairo_t * +paint_alpha (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + cairo_surface_set_mime_data (surface, CAIRO_MIME_TYPE_UNIQUE_ID, + (unsigned char *)unique_id, strlen(unique_id), + NULL, NULL); + + cairo_test_paint_checkered (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +paint_alpha_solid_clip (cairo_t *cr) +{ + cairo_test_paint_checkered (cr); + + cairo_rectangle (cr, 2.5, 2.5, 27, 27); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 1., 0.,0.); + cairo_paint_with_alpha (cr, 0.5); + + return cr; +} + +static cairo_t * +paint_alpha_clip (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + cairo_surface_set_mime_data (surface, CAIRO_MIME_TYPE_UNIQUE_ID, + (unsigned char *)unique_id, strlen(unique_id), + NULL, NULL); + + cairo_test_paint_checkered (cr); + + cairo_rectangle (cr, 10.5, 10.5, 11, 11); + cairo_clip (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +paint_alpha_clip_mask (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + cairo_surface_set_mime_data (surface, CAIRO_MIME_TYPE_UNIQUE_ID, + (unsigned char *)unique_id, strlen(unique_id), + NULL, NULL); + + cairo_test_paint_checkered (cr); + + cairo_move_to (cr, 16, 5); + cairo_line_to (cr, 5, 16); + cairo_line_to (cr, 16, 27); + cairo_line_to (cr, 27, 16); + cairo_clip (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +select_font_face (cairo_t *cr) +{ + /* We draw in the default black, so paint white first. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + + cairo_set_font_size (cr, TEXT_SIZE); + cairo_move_to (cr, 0, TEXT_SIZE); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Serif", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, "i-am-serif"); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, " i-am-sans"); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans Mono", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, " i-am-mono"); + + return cr; +} + +static cairo_t * +fill_alpha (cairo_t *cr) +{ + const double alpha = 1./3; + int n; + + /* flatten to white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* square */ + cairo_rectangle (cr, PAD, PAD, SIZE, SIZE); + cairo_set_source_rgba (cr, 1, 0, 0, alpha); + cairo_fill (cr); + + /* circle */ + cairo_translate (cr, SIZE + 2 * PAD, 0); + cairo_arc (cr, PAD + SIZE / 2., PAD + SIZE / 2., SIZE / 2., 0, 2 * M_PI); + cairo_set_source_rgba (cr, 0, 1, 0, alpha); + cairo_fill (cr); + + /* triangle */ + cairo_translate (cr, 0, SIZE + 2 * PAD); + cairo_move_to (cr, PAD + SIZE / 2, PAD); + cairo_line_to (cr, PAD + SIZE, PAD + SIZE); + cairo_line_to (cr, PAD, PAD + SIZE); + cairo_set_source_rgba (cr, 0, 0, 1, alpha); + cairo_fill (cr); + + /* star */ + cairo_translate (cr, -(SIZE + 2 * PAD) + SIZE/2., SIZE/2.); + for (n = 0; n < 5; n++) { + cairo_line_to (cr, + SIZE/2 * cos (2*n * 2*M_PI / 10), + SIZE/2 * sin (2*n * 2*M_PI / 10)); + + cairo_line_to (cr, + SIZE/4 * cos ((2*n+1)*2*M_PI / 10), + SIZE/4 * sin ((2*n+1)*2*M_PI / 10)); + } + cairo_set_source_rgba (cr, 0, 0, 0, alpha); + cairo_fill (cr); + + return cr; +} + +static cairo_t * +self_intersecting (cairo_t *cr) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, 1.0, 1.0); + + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + + /* First draw the desired shape with a fill */ + cairo_rectangle (cr, 0.5, 0.5, 4.0, 4.0); + cairo_rectangle (cr, 3.5, 3.5, 4.0, 4.0); + cairo_rectangle (cr, 3.5, 1.5, -2.0, 2.0); + cairo_rectangle (cr, 6.5, 4.5, -2.0, 2.0); + + cairo_fill (cr); + + /* Then try the same thing with a stroke */ + cairo_translate (cr, 0, 10); + cairo_move_to (cr, 1.0, 1.0); + cairo_rel_line_to (cr, 3.0, 0.0); + cairo_rel_line_to (cr, 0.0, 6.0); + cairo_rel_line_to (cr, 3.0, 0.0); + cairo_rel_line_to (cr, 0.0, -3.0); + cairo_rel_line_to (cr, -6.0, 0.0); + cairo_close_path (cr); + + cairo_set_line_width (cr, 1.0); + cairo_stroke (cr); + + return cr; +} + +static void +draw_text_transform (cairo_t *cr) +{ + cairo_matrix_t tm; + + /* skew */ + cairo_matrix_init (&tm, 1, 0, + -0.25, 1, + 0, 0); + cairo_matrix_scale (&tm, TT_FONT_SIZE, TT_FONT_SIZE); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, 50, TT_SIZE-TT_PAD); + cairo_show_text (cr, "A"); + + /* rotate and scale */ + cairo_matrix_init_rotate (&tm, M_PI / 2); + cairo_matrix_scale (&tm, TT_FONT_SIZE, TT_FONT_SIZE * 2.0); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, TT_PAD, TT_PAD + 25); + cairo_show_text (cr, "A"); + + cairo_matrix_init_rotate (&tm, M_PI / 2); + cairo_matrix_scale (&tm, TT_FONT_SIZE * 2.0, TT_FONT_SIZE); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, TT_PAD, TT_PAD + 50); + cairo_show_text (cr, "A"); +} + +static cairo_t * +text_transform (cairo_t *cr) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_pattern_t *pattern; + + cairo_set_source_rgb (cr, 1., 1., 1.); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0., 0., 0.); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + draw_text_transform (cr); + + cairo_translate (cr, TT_SIZE, TT_SIZE); + cairo_rotate (cr, M_PI); + + pattern = cairo_test_create_pattern_from_png (ctx, png_filename); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + draw_text_transform (cr); + + return cr; +} + +/* And here begins the recording and replaying... */ + +static cairo_t * +record_create (cairo_t *target) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_recording_surface_create (cairo_surface_get_content (cairo_get_target (target)), NULL); + cr = cairo_test_create (surface, cairo_test_get_context (target)); + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_surface_t * +record_get (cairo_t *target) +{ + cairo_surface_t *surface; + + surface = cairo_surface_reference (cairo_get_target (target)); + cairo_destroy (target); + + return surface; +} + +static cairo_test_status_t +record_replay (cairo_t *cr, cairo_t *(*func)(cairo_t *), int width, int height) +{ + cairo_surface_t *surface; + int x, y; + +#if GENERATE_REF + func(cr); +#else + surface = record_get (func (record_create (cr))); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_NONE); + + for (y = 0; y < height; y += 2) { + for (x = 0; x < width; x += 2) { + cairo_rectangle (cr, x, y, 2, 2); + cairo_clip (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + } + } +#endif + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +record_paint (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint, width, height); +} + +static cairo_test_status_t +record_paint_alpha (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha, width, height); +} + +static cairo_test_status_t +record_paint_alpha_solid_clip (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_solid_clip, width, height); +} + +static cairo_test_status_t +record_paint_alpha_clip (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_clip, width, height); +} + +static cairo_test_status_t +record_paint_alpha_clip_mask (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_clip_mask, width, height); +} + +static cairo_test_status_t +record_fill_alpha (cairo_t *cr, int width, int height) +{ + return record_replay (cr, fill_alpha, width, height); +} + +static cairo_test_status_t +record_self_intersecting (cairo_t *cr, int width, int height) +{ + return record_replay (cr, self_intersecting, width, height); +} + +static cairo_test_status_t +record_select_font_face (cairo_t *cr, int width, int height) +{ + return record_replay (cr, select_font_face, width, height); +} + +static cairo_test_status_t +record_text_transform (cairo_t *cr, int width, int height) +{ + return record_replay (cr, text_transform, width, height); +} + +CAIRO_TEST (record_paint, + "Test replayed calls to cairo_paint", + "paint,record", /* keywords */ + NULL, /* requirements */ + 8, 8, + NULL, record_paint) +CAIRO_TEST (record_paint_alpha, + "Simple test of cairo_paint_with_alpha", + "record, paint, alpha", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_paint_alpha) +CAIRO_TEST (record_paint_alpha_solid_clip, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_paint_alpha_solid_clip) +CAIRO_TEST (record_paint_alpha_clip, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_paint_alpha_clip) +CAIRO_TEST (record_paint_alpha_clip_mask, + "Simple test of cairo_paint_with_alpha+triangular clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_paint_alpha_clip_mask) +CAIRO_TEST (record_fill_alpha, + "Tests using set_rgba();fill()", + "record,fill, alpha", /* keywords */ + NULL, /* requirements */ + 2*SIZE + 4*PAD, 2*SIZE + 4*PAD, + NULL, record_fill_alpha) +CAIRO_TEST (record_select_font_face, + "Tests using cairo_select_font_face to draw text in different faces", + "record, font", /* keywords */ + NULL, /* requirements */ + 192, TEXT_SIZE + 4, + NULL, record_select_font_face) +CAIRO_TEST (record_self_intersecting, + "Test strokes of self-intersecting paths", + "record, stroke, trap", /* keywords */ + NULL, /* requirements */ + 10, 20, + NULL, record_self_intersecting) +CAIRO_TEST (record_text_transform, + "Test various applications of the font matrix", + "record, text, transform", /* keywords */ + NULL, /* requirements */ + TT_SIZE, TT_SIZE, + NULL, record_text_transform) diff --git a/local/recipes/libs/cairo/source/test/record1414x.c b/local/recipes/libs/cairo/source/test/record1414x.c new file mode 100644 index 0000000000..c38857c1fb --- /dev/null +++ b/local/recipes/libs/cairo/source/test/record1414x.c @@ -0,0 +1,498 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: + * Carl D. Worth + * Chris Wilson + */ + +#include "cairo-test.h" + +#ifndef M_SQRT2 +#define M_SQRT2 1.41421345623730951 +#endif + +#define TEXT_SIZE 12 +#define SIZE 60 /* needs to be big to check large area effects (dithering) */ +#define PAD 2 + +#define TT_SIZE 100 +#define TT_PAD 5 +#define TT_FONT_SIZE 32.0 + +#define GENERATE_REF 0 + +static uint32_t data[16] = { + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff, + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff +}; + +static const char *png_filename = "romedalen.png"; + +static cairo_t * +paint (cairo_t *cr) +{ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + cairo_translate (cr, 2, 2); + cairo_scale (cr, 0.5, 0.5); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + return cr; +} + +static cairo_t * +paint_alpha (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +paint_alpha_solid_clip (cairo_t *cr) +{ + cairo_test_paint_checkered (cr); + + cairo_rectangle (cr, 2.5, 2.5, 27, 27); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 1., 0.,0.); + cairo_paint_with_alpha (cr, 0.5); + + return cr; +} + +static cairo_t * +paint_alpha_clip (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_rectangle (cr, 10.5, 10.5, 11, 11); + cairo_clip (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +paint_alpha_clip_mask (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_move_to (cr, 16, 5); + cairo_line_to (cr, 5, 16); + cairo_line_to (cr, 16, 27); + cairo_line_to (cr, 27, 16); + cairo_clip (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +select_font_face (cairo_t *cr) +{ + /* We draw in the default black, so paint white first. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + + cairo_set_font_size (cr, TEXT_SIZE); + cairo_move_to (cr, 0, TEXT_SIZE); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Serif", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, "i-am-serif"); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, " i-am-sans"); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans Mono", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, " i-am-mono"); + + return cr; +} + +static cairo_t * +fill_alpha (cairo_t *cr) +{ + const double alpha = 1./3; + int n; + + /* flatten to white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* square */ + cairo_rectangle (cr, PAD, PAD, SIZE, SIZE); + cairo_set_source_rgba (cr, 1, 0, 0, alpha); + cairo_fill (cr); + + /* circle */ + cairo_translate (cr, SIZE + 2 * PAD, 0); + cairo_arc (cr, PAD + SIZE / 2., PAD + SIZE / 2., SIZE / 2., 0, 2 * M_PI); + cairo_set_source_rgba (cr, 0, 1, 0, alpha); + cairo_fill (cr); + + /* triangle */ + cairo_translate (cr, 0, SIZE + 2 * PAD); + cairo_move_to (cr, PAD + SIZE / 2, PAD); + cairo_line_to (cr, PAD + SIZE, PAD + SIZE); + cairo_line_to (cr, PAD, PAD + SIZE); + cairo_set_source_rgba (cr, 0, 0, 1, alpha); + cairo_fill (cr); + + /* star */ + cairo_translate (cr, -(SIZE + 2 * PAD) + SIZE/2., SIZE/2.); + for (n = 0; n < 5; n++) { + cairo_line_to (cr, + SIZE/2 * cos (2*n * 2*M_PI / 10), + SIZE/2 * sin (2*n * 2*M_PI / 10)); + + cairo_line_to (cr, + SIZE/4 * cos ((2*n+1)*2*M_PI / 10), + SIZE/4 * sin ((2*n+1)*2*M_PI / 10)); + } + cairo_set_source_rgba (cr, 0, 0, 0, alpha); + cairo_fill (cr); + + return cr; +} + +static cairo_t * +self_intersecting (cairo_t *cr) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, 1.0, 1.0); + + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + + /* First draw the desired shape with a fill */ + cairo_rectangle (cr, 0.5, 0.5, 4.0, 4.0); + cairo_rectangle (cr, 3.5, 3.5, 4.0, 4.0); + cairo_rectangle (cr, 3.5, 1.5, -2.0, 2.0); + cairo_rectangle (cr, 6.5, 4.5, -2.0, 2.0); + + cairo_fill (cr); + + /* Then try the same thing with a stroke */ + cairo_translate (cr, 0, 10); + cairo_move_to (cr, 1.0, 1.0); + cairo_rel_line_to (cr, 3.0, 0.0); + cairo_rel_line_to (cr, 0.0, 6.0); + cairo_rel_line_to (cr, 3.0, 0.0); + cairo_rel_line_to (cr, 0.0, -3.0); + cairo_rel_line_to (cr, -6.0, 0.0); + cairo_close_path (cr); + + cairo_set_line_width (cr, 1.0); + cairo_stroke (cr); + + return cr; +} + +static void +draw_text_transform (cairo_t *cr) +{ + cairo_matrix_t tm; + + /* skew */ + cairo_matrix_init (&tm, 1, 0, + -0.25, 1, + 0, 0); + cairo_matrix_scale (&tm, TT_FONT_SIZE, TT_FONT_SIZE); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, 50, TT_SIZE-TT_PAD); + cairo_show_text (cr, "A"); + + /* rotate and scale */ + cairo_matrix_init_rotate (&tm, M_PI / 2); + cairo_matrix_scale (&tm, TT_FONT_SIZE, TT_FONT_SIZE * 2.0); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, TT_PAD, TT_PAD + 25); + cairo_show_text (cr, "A"); + + cairo_matrix_init_rotate (&tm, M_PI / 2); + cairo_matrix_scale (&tm, TT_FONT_SIZE * 2.0, TT_FONT_SIZE); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, TT_PAD, TT_PAD + 50); + cairo_show_text (cr, "A"); +} + +static cairo_t * +text_transform (cairo_t *cr) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_pattern_t *pattern; + + cairo_set_source_rgb (cr, 1., 1., 1.); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0., 0., 0.); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + draw_text_transform (cr); + + cairo_translate (cr, TT_SIZE, TT_SIZE); + cairo_rotate (cr, M_PI); + + pattern = cairo_test_create_pattern_from_png (ctx, png_filename); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + draw_text_transform (cr); + + return cr; +} + +/* And here begins the recording and replaying... */ + +static cairo_t * +record_create (cairo_t *target) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_recording_surface_create (cairo_surface_get_content (cairo_get_target (target)), NULL); + cr = cairo_test_create (surface, cairo_test_get_context (target)); + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_surface_t * +record_get (cairo_t *target) +{ + cairo_surface_t *surface; + + surface = cairo_surface_reference (cairo_get_target (target)); + cairo_destroy (target); + + return surface; +} + +static cairo_test_status_t +record_replay (cairo_t *cr, cairo_t *(*func)(cairo_t *), int width, int height) +{ + cairo_surface_t *surface; + int x, y; + +#if GENERATE_REF + cairo_scale (cr, M_SQRT2, M_SQRT2); + func (cr); +#else + surface = record_get (func (record_create (cr))); + + cairo_scale (cr, M_SQRT2, M_SQRT2); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_NONE); + + cairo_identity_matrix (cr); /* make sure the clip is pixel-aligned */ + for (y = 0; y < height; y += 2) { + for (x = 0; x < width; x += 2) { + cairo_rectangle (cr, x, y, 2, 2); + cairo_clip (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + } + } +#endif + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +record_paint (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint, width, height); +} + +static cairo_test_status_t +record_paint_alpha (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha, width, height); +} + +static cairo_test_status_t +record_paint_alpha_solid_clip (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_solid_clip, width, height); +} + +static cairo_test_status_t +record_paint_alpha_clip (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_clip, width, height); +} + +static cairo_test_status_t +record_paint_alpha_clip_mask (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_clip_mask, width, height); +} + +static cairo_test_status_t +record_fill_alpha (cairo_t *cr, int width, int height) +{ + return record_replay (cr, fill_alpha, width, height); +} + +static cairo_test_status_t +record_self_intersecting (cairo_t *cr, int width, int height) +{ + return record_replay (cr, self_intersecting, width, height); +} + +static cairo_test_status_t +record_select_font_face (cairo_t *cr, int width, int height) +{ + return record_replay (cr, select_font_face, width, height); +} + +static cairo_test_status_t +record_text_transform (cairo_t *cr, int width, int height) +{ + return record_replay (cr, text_transform, width, height); +} + +CAIRO_TEST (record1414x_paint, + "Test replayed calls to cairo_paint", + "paint, record", /* keywords */ + NULL, /* requirements */ + M_SQRT2*8, M_SQRT2*8, + NULL, record_paint) +CAIRO_TEST (record1414x_paint_alpha, + "Simple test of cairo_paint_with_alpha", + "record, paint, alpha", /* keywords */ + NULL, /* requirements */ + M_SQRT2*32, M_SQRT2*32, + NULL, record_paint_alpha) +CAIRO_TEST (record1414x_paint_alpha_solid_clip, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + M_SQRT2*32, M_SQRT2*32, + NULL, record_paint_alpha_solid_clip) +CAIRO_TEST (record1414x_paint_alpha_clip, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + M_SQRT2*32, M_SQRT2*32, + NULL, record_paint_alpha_clip) +CAIRO_TEST (record1414x_paint_alpha_clip_mask, + "Simple test of cairo_paint_with_alpha+triangular clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + M_SQRT2*32, M_SQRT2*32, + NULL, record_paint_alpha_clip_mask) +CAIRO_TEST (record1414x_fill_alpha, + "Tests using set_rgba();fill()", + "record, fill, alpha", /* keywords */ + NULL, /* requirements */ + M_SQRT2*(2*SIZE + 4*PAD), M_SQRT2*(2*SIZE + 4*PAD), + NULL, record_fill_alpha) +CAIRO_TEST (record1414x_select_font_face, + "Tests using cairo_select_font_face to draw text in different faces", + "record, font", /* keywords */ + NULL, /* requirements */ + M_SQRT2*192, M_SQRT2*(TEXT_SIZE + 4), + NULL, record_select_font_face) +CAIRO_TEST (record1414x_self_intersecting, + "Test strokes of self-intersecting paths", + "record, stroke, trap", /* keywords */ + NULL, /* requirements */ + M_SQRT2*10, M_SQRT2*20, + NULL, record_self_intersecting) +CAIRO_TEST (record1414x_text_transform, + "Test various applications of the font matrix", + "record, text, transform", /* keywords */ + NULL, /* requirements */ + M_SQRT2*TT_SIZE, M_SQRT2*TT_SIZE, + NULL, record_text_transform) diff --git a/local/recipes/libs/cairo/source/test/record2x.c b/local/recipes/libs/cairo/source/test/record2x.c new file mode 100644 index 0000000000..caca0e603b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/record2x.c @@ -0,0 +1,493 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: + * Carl D. Worth + * Chris Wilson + */ + +#include "cairo-test.h" + +#define TEXT_SIZE 12 +#define SIZE 60 /* needs to be big to check large area effects (dithering) */ +#define PAD 2 + +#define TT_SIZE 100 +#define TT_PAD 5 +#define TT_FONT_SIZE 32.0 + +#define GENERATE_REF 0 + +static uint32_t data[16] = { + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff, + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff +}; + +static const char *png_filename = "romedalen.png"; + +static cairo_t * +paint (cairo_t *cr) +{ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + cairo_translate (cr, 2, 2); + cairo_scale (cr, 0.5, 0.5); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + return cr; +} + +static cairo_t * +paint_alpha (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +paint_alpha_solid_clip (cairo_t *cr) +{ + cairo_test_paint_checkered (cr); + + cairo_rectangle (cr, 2.5, 2.5, 27, 27); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 1., 0.,0.); + cairo_paint_with_alpha (cr, 0.5); + + return cr; +} + +static cairo_t * +paint_alpha_clip (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_rectangle (cr, 10.5, 10.5, 11, 11); + cairo_clip (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +paint_alpha_clip_mask (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_move_to (cr, 16, 5); + cairo_line_to (cr, 5, 16); + cairo_line_to (cr, 16, 27); + cairo_line_to (cr, 27, 16); + cairo_clip (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +select_font_face (cairo_t *cr) +{ + /* We draw in the default black, so paint white first. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + + cairo_set_font_size (cr, TEXT_SIZE); + cairo_move_to (cr, 0, TEXT_SIZE); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Serif", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, "i-am-serif"); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, " i-am-sans"); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans Mono", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, " i-am-mono"); + + return cr; +} + +static cairo_t * +fill_alpha (cairo_t *cr) +{ + const double alpha = 1./3; + int n; + + /* flatten to white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* square */ + cairo_rectangle (cr, PAD, PAD, SIZE, SIZE); + cairo_set_source_rgba (cr, 1, 0, 0, alpha); + cairo_fill (cr); + + /* circle */ + cairo_translate (cr, SIZE + 2 * PAD, 0); + cairo_arc (cr, PAD + SIZE / 2., PAD + SIZE / 2., SIZE / 2., 0, 2 * M_PI); + cairo_set_source_rgba (cr, 0, 1, 0, alpha); + cairo_fill (cr); + + /* triangle */ + cairo_translate (cr, 0, SIZE + 2 * PAD); + cairo_move_to (cr, PAD + SIZE / 2, PAD); + cairo_line_to (cr, PAD + SIZE, PAD + SIZE); + cairo_line_to (cr, PAD, PAD + SIZE); + cairo_set_source_rgba (cr, 0, 0, 1, alpha); + cairo_fill (cr); + + /* star */ + cairo_translate (cr, -(SIZE + 2 * PAD) + SIZE/2., SIZE/2.); + for (n = 0; n < 5; n++) { + cairo_line_to (cr, + SIZE/2 * cos (2*n * 2*M_PI / 10), + SIZE/2 * sin (2*n * 2*M_PI / 10)); + + cairo_line_to (cr, + SIZE/4 * cos ((2*n+1)*2*M_PI / 10), + SIZE/4 * sin ((2*n+1)*2*M_PI / 10)); + } + cairo_set_source_rgba (cr, 0, 0, 0, alpha); + cairo_fill (cr); + + return cr; +} + +static cairo_t * +self_intersecting (cairo_t *cr) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, 1.0, 1.0); + + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + + /* First draw the desired shape with a fill */ + cairo_rectangle (cr, 0.5, 0.5, 4.0, 4.0); + cairo_rectangle (cr, 3.5, 3.5, 4.0, 4.0); + cairo_rectangle (cr, 3.5, 1.5, -2.0, 2.0); + cairo_rectangle (cr, 6.5, 4.5, -2.0, 2.0); + + cairo_fill (cr); + + /* Then try the same thing with a stroke */ + cairo_translate (cr, 0, 10); + cairo_move_to (cr, 1.0, 1.0); + cairo_rel_line_to (cr, 3.0, 0.0); + cairo_rel_line_to (cr, 0.0, 6.0); + cairo_rel_line_to (cr, 3.0, 0.0); + cairo_rel_line_to (cr, 0.0, -3.0); + cairo_rel_line_to (cr, -6.0, 0.0); + cairo_close_path (cr); + + cairo_set_line_width (cr, 1.0); + cairo_stroke (cr); + + return cr; +} + +static void +draw_text_transform (cairo_t *cr) +{ + cairo_matrix_t tm; + + /* skew */ + cairo_matrix_init (&tm, 1, 0, + -0.25, 1, + 0, 0); + cairo_matrix_scale (&tm, TT_FONT_SIZE, TT_FONT_SIZE); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, 50, TT_SIZE-TT_PAD); + cairo_show_text (cr, "A"); + + /* rotate and scale */ + cairo_matrix_init_rotate (&tm, M_PI / 2); + cairo_matrix_scale (&tm, TT_FONT_SIZE, TT_FONT_SIZE * 2.0); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, TT_PAD, TT_PAD + 25); + cairo_show_text (cr, "A"); + + cairo_matrix_init_rotate (&tm, M_PI / 2); + cairo_matrix_scale (&tm, TT_FONT_SIZE * 2.0, TT_FONT_SIZE); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, TT_PAD, TT_PAD + 50); + cairo_show_text (cr, "A"); +} + +static cairo_t * +text_transform (cairo_t *cr) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_pattern_t *pattern; + + cairo_set_source_rgb (cr, 1., 1., 1.); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0., 0., 0.); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + draw_text_transform (cr); + + cairo_translate (cr, TT_SIZE, TT_SIZE); + cairo_rotate (cr, M_PI); + + pattern = cairo_test_create_pattern_from_png (ctx, png_filename); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + draw_text_transform (cr); + + return cr; +} + +/* And here begins the recording and replaying... */ + +static cairo_t * +record_create (cairo_t *target) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_recording_surface_create (cairo_surface_get_content (cairo_get_target (target)), NULL); + cr = cairo_test_create (surface, cairo_test_get_context (target)); + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_surface_t * +record_get (cairo_t *target) +{ + cairo_surface_t *surface; + + surface = cairo_surface_reference (cairo_get_target (target)); + cairo_destroy (target); + + return surface; +} + +static cairo_test_status_t +record_replay (cairo_t *cr, cairo_t *(*func)(cairo_t *), int width, int height) +{ + cairo_surface_t *surface; + int x, y; + +#if GENERATE_REF + cairo_scale (cr, 2, 2); + func(cr); +#else + surface = record_get (func (record_create (cr))); + + cairo_scale (cr, 2, 2); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_NONE); + + for (y = 0; y < height; y += 2) { + for (x = 0; x < width; x += 2) { + cairo_rectangle (cr, x, y, 2, 2); + cairo_clip (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + } + } +#endif + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +record_paint (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint, width, height); +} + +static cairo_test_status_t +record_paint_alpha (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha, width, height); +} + +static cairo_test_status_t +record_paint_alpha_solid_clip (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_solid_clip, width, height); +} + +static cairo_test_status_t +record_paint_alpha_clip (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_clip, width, height); +} + +static cairo_test_status_t +record_paint_alpha_clip_mask (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_clip_mask, width, height); +} + +static cairo_test_status_t +record_fill_alpha (cairo_t *cr, int width, int height) +{ + return record_replay (cr, fill_alpha, width, height); +} + +static cairo_test_status_t +record_self_intersecting (cairo_t *cr, int width, int height) +{ + return record_replay (cr, self_intersecting, width, height); +} + +static cairo_test_status_t +record_select_font_face (cairo_t *cr, int width, int height) +{ + return record_replay (cr, select_font_face, width, height); +} + +static cairo_test_status_t +record_text_transform (cairo_t *cr, int width, int height) +{ + return record_replay (cr, text_transform, width, height); +} + +CAIRO_TEST (record2x_paint, + "Test replayed calls to cairo_paint", + "paint,record", /* keywords */ + NULL, /* requirements */ + 2*8, 2*8, + NULL, record_paint) +CAIRO_TEST (record2x_paint_alpha, + "Simple test of cairo_paint_with_alpha", + "record, paint, alpha", /* keywords */ + NULL, /* requirements */ + 2*32, 2*32, + NULL, record_paint_alpha) +CAIRO_TEST (record2x_paint_alpha_solid_clip, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 2*32, 2*32, + NULL, record_paint_alpha_solid_clip) +CAIRO_TEST (record2x_paint_alpha_clip, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 2*32, 2*32, + NULL, record_paint_alpha_clip) +CAIRO_TEST (record2x_paint_alpha_clip_mask, + "Simple test of cairo_paint_with_alpha+triangular clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 2*32, 2*32, + NULL, record_paint_alpha_clip_mask) +CAIRO_TEST (record2x_fill_alpha, + "Tests using set_rgba();fill()", + "record,fill, alpha", /* keywords */ + NULL, /* requirements */ + 2*(2*SIZE + 4*PAD), 2*(2*SIZE + 4*PAD), + NULL, record_fill_alpha) +CAIRO_TEST (record2x_select_font_face, + "Tests using cairo_select_font_face to draw text in different faces", + "record, font", /* keywords */ + NULL, /* requirements */ + 2*192, 2*(TEXT_SIZE + 4), + NULL, record_select_font_face) +CAIRO_TEST (record2x_self_intersecting, + "Test strokes of self-intersecting paths", + "record, stroke, trap", /* keywords */ + NULL, /* requirements */ + 2*10, 2*20, + NULL, record_self_intersecting) +CAIRO_TEST (record2x_text_transform, + "Test various applications of the font matrix", + "record, text, transform", /* keywords */ + NULL, /* requirements */ + 2*TT_SIZE, 2*TT_SIZE, + NULL, record_text_transform) diff --git a/local/recipes/libs/cairo/source/test/record90.c b/local/recipes/libs/cairo/source/test/record90.c new file mode 100644 index 0000000000..aeec5af816 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/record90.c @@ -0,0 +1,495 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: + * Carl D. Worth + * Chris Wilson + */ + +#include "cairo-test.h" + +#define TEXT_SIZE 12 +#define SIZE 60 /* needs to be big to check large area effects (dithering) */ +#define PAD 2 + +#define TT_SIZE 100 +#define TT_PAD 5 +#define TT_FONT_SIZE 32.0 + +#define GENERATE_REF 0 + +static uint32_t data[16] = { + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff, + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff +}; + +static const char *png_filename = "romedalen.png"; + +static cairo_t * +paint (cairo_t *cr) +{ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + cairo_translate (cr, 2, 2); + cairo_scale (cr, 0.5, 0.5); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + return cr; +} + +static cairo_t * +paint_alpha (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +paint_alpha_solid_clip (cairo_t *cr) +{ + cairo_test_paint_checkered (cr); + + cairo_rectangle (cr, 2.5, 2.5, 27, 27); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 1., 0.,0.); + cairo_paint_with_alpha (cr, 0.5); + + return cr; +} + +static cairo_t * +paint_alpha_clip (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_rectangle (cr, 10.5, 10.5, 11, 11); + cairo_clip (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +paint_alpha_clip_mask (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_move_to (cr, 16, 5); + cairo_line_to (cr, 5, 16); + cairo_line_to (cr, 16, 27); + cairo_line_to (cr, 27, 16); + cairo_clip (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +select_font_face (cairo_t *cr) +{ + /* We draw in the default black, so paint white first. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + + cairo_set_font_size (cr, TEXT_SIZE); + cairo_move_to (cr, 0, TEXT_SIZE); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Serif", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, "i-am-serif"); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, " i-am-sans"); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans Mono", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, " i-am-mono"); + + return cr; +} + +static cairo_t * +fill_alpha (cairo_t *cr) +{ + const double alpha = 1./3; + int n; + + /* flatten to white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* square */ + cairo_rectangle (cr, PAD, PAD, SIZE, SIZE); + cairo_set_source_rgba (cr, 1, 0, 0, alpha); + cairo_fill (cr); + + /* circle */ + cairo_translate (cr, SIZE + 2 * PAD, 0); + cairo_arc (cr, PAD + SIZE / 2., PAD + SIZE / 2., SIZE / 2., 0, 2 * M_PI); + cairo_set_source_rgba (cr, 0, 1, 0, alpha); + cairo_fill (cr); + + /* triangle */ + cairo_translate (cr, 0, SIZE + 2 * PAD); + cairo_move_to (cr, PAD + SIZE / 2, PAD); + cairo_line_to (cr, PAD + SIZE, PAD + SIZE); + cairo_line_to (cr, PAD, PAD + SIZE); + cairo_set_source_rgba (cr, 0, 0, 1, alpha); + cairo_fill (cr); + + /* star */ + cairo_translate (cr, -(SIZE + 2 * PAD) + SIZE/2., SIZE/2.); + for (n = 0; n < 5; n++) { + cairo_line_to (cr, + SIZE/2 * cos (2*n * 2*M_PI / 10), + SIZE/2 * sin (2*n * 2*M_PI / 10)); + + cairo_line_to (cr, + SIZE/4 * cos ((2*n+1)*2*M_PI / 10), + SIZE/4 * sin ((2*n+1)*2*M_PI / 10)); + } + cairo_set_source_rgba (cr, 0, 0, 0, alpha); + cairo_fill (cr); + + return cr; +} + +static cairo_t * +self_intersecting (cairo_t *cr) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, 1.0, 1.0); + + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + + /* First draw the desired shape with a fill */ + cairo_rectangle (cr, 0.5, 0.5, 4.0, 4.0); + cairo_rectangle (cr, 3.5, 3.5, 4.0, 4.0); + cairo_rectangle (cr, 3.5, 1.5, -2.0, 2.0); + cairo_rectangle (cr, 6.5, 4.5, -2.0, 2.0); + + cairo_fill (cr); + + /* Then try the same thing with a stroke */ + cairo_translate (cr, 0, 10); + cairo_move_to (cr, 1.0, 1.0); + cairo_rel_line_to (cr, 3.0, 0.0); + cairo_rel_line_to (cr, 0.0, 6.0); + cairo_rel_line_to (cr, 3.0, 0.0); + cairo_rel_line_to (cr, 0.0, -3.0); + cairo_rel_line_to (cr, -6.0, 0.0); + cairo_close_path (cr); + + cairo_set_line_width (cr, 1.0); + cairo_stroke (cr); + + return cr; +} + +static void +draw_text_transform (cairo_t *cr) +{ + cairo_matrix_t tm; + + /* skew */ + cairo_matrix_init (&tm, 1, 0, + -0.25, 1, + 0, 0); + cairo_matrix_scale (&tm, TT_FONT_SIZE, TT_FONT_SIZE); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, 50, TT_SIZE-TT_PAD); + cairo_show_text (cr, "A"); + + /* rotate and scale */ + cairo_matrix_init_rotate (&tm, M_PI / 2); + cairo_matrix_scale (&tm, TT_FONT_SIZE, TT_FONT_SIZE * 2.0); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, TT_PAD, TT_PAD + 25); + cairo_show_text (cr, "A"); + + cairo_matrix_init_rotate (&tm, M_PI / 2); + cairo_matrix_scale (&tm, TT_FONT_SIZE * 2.0, TT_FONT_SIZE); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, TT_PAD, TT_PAD + 50); + cairo_show_text (cr, "A"); +} + +static cairo_t * +text_transform (cairo_t *cr) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_pattern_t *pattern; + + cairo_set_source_rgb (cr, 1., 1., 1.); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0., 0., 0.); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + draw_text_transform (cr); + + cairo_translate (cr, TT_SIZE, TT_SIZE); + cairo_rotate (cr, M_PI); + + pattern = cairo_test_create_pattern_from_png (ctx, png_filename); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + draw_text_transform (cr); + + return cr; +} + +/* And here begins the recording and replaying... */ + +static cairo_t * +record_create (cairo_t *target) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_recording_surface_create (cairo_surface_get_content (cairo_get_target (target)), NULL); + cr = cairo_test_create (surface, cairo_test_get_context (target)); + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_surface_t * +record_get (cairo_t *target) +{ + cairo_surface_t *surface; + + surface = cairo_surface_reference (cairo_get_target (target)); + cairo_destroy (target); + + return surface; +} + +static cairo_test_status_t +record_replay (cairo_t *cr, cairo_t *(*func)(cairo_t *), int width, int height) +{ + cairo_surface_t *surface; + int x, y; + +#if GENERATE_REF + cairo_translate(cr, width, 0); + cairo_rotate (cr, M_PI/2); + func(cr); +#else + surface = record_get (func (record_create (cr))); + + cairo_translate(cr, width, 0); + cairo_rotate (cr, M_PI/2); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_NONE); + + for (y = 0; y < width; y += 2) { + for (x = 0; x < height; x += 2) { + cairo_rectangle (cr, x, y, 2, 2); + cairo_clip (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + } + } +#endif + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +record_paint (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint, width, height); +} + +static cairo_test_status_t +record_paint_alpha (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha, width, height); +} + +static cairo_test_status_t +record_paint_alpha_solid_clip (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_solid_clip, width, height); +} + +static cairo_test_status_t +record_paint_alpha_clip (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_clip, width, height); +} + +static cairo_test_status_t +record_paint_alpha_clip_mask (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_clip_mask, width, height); +} + +static cairo_test_status_t +record_fill_alpha (cairo_t *cr, int width, int height) +{ + return record_replay (cr, fill_alpha, width, height); +} + +static cairo_test_status_t +record_self_intersecting (cairo_t *cr, int width, int height) +{ + return record_replay (cr, self_intersecting, width, height); +} + +static cairo_test_status_t +record_select_font_face (cairo_t *cr, int width, int height) +{ + return record_replay (cr, select_font_face, width, height); +} + +static cairo_test_status_t +record_text_transform (cairo_t *cr, int width, int height) +{ + return record_replay (cr, text_transform, width, height); +} + +CAIRO_TEST (record90_paint, + "Test replayed calls to cairo_paint", + "paint,record", /* keywords */ + NULL, /* requirements */ + 8, 8, + NULL, record_paint) +CAIRO_TEST (record90_paint_alpha, + "Simple test of cairo_paint_with_alpha", + "record, paint, alpha", /* keywords */ + NULL, /* requirements */ + 2, 32, + NULL, record_paint_alpha) +CAIRO_TEST (record90_paint_alpha_solid_clip, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_paint_alpha_solid_clip) +CAIRO_TEST (record90_paint_alpha_clip, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_paint_alpha_clip) +CAIRO_TEST (record90_paint_alpha_clip_mask, + "Simple test of cairo_paint_with_alpha+triangular clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_paint_alpha_clip_mask) +CAIRO_TEST (record90_fill_alpha, + "Tests using set_rgba();fill()", + "record,fill, alpha", /* keywords */ + NULL, /* requirements */ + 2*SIZE + 4*PAD, 2*SIZE + 4*PAD, + NULL, record_fill_alpha) +CAIRO_TEST (record90_select_font_face, + "Tests using cairo_select_font_face to draw text in different faces", + "record, font", /* keywords */ + NULL, /* requirements */ + TEXT_SIZE + 4, 192, + NULL, record_select_font_face) +CAIRO_TEST (record90_self_intersecting, + "Test strokes of self-intersecting paths", + "record, stroke, trap", /* keywords */ + NULL, /* requirements */ + 20, 10, + NULL, record_self_intersecting) +CAIRO_TEST (record90_text_transform, + "Test various applications of the font matrix", + "record, text, transform", /* keywords */ + NULL, /* requirements */ + TT_SIZE, TT_SIZE, + NULL, record_text_transform) diff --git a/local/recipes/libs/cairo/source/test/recordflip.c b/local/recipes/libs/cairo/source/test/recordflip.c new file mode 100644 index 0000000000..495fe9dd6f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/recordflip.c @@ -0,0 +1,733 @@ +/* + * Copyright © 2011,2013 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define TEXT_SIZE 12 +#define SIZE 60 /* needs to be big to check large area effects (dithering) */ +#define PAD 2 + +#define TT_SIZE 100 +#define TT_PAD 5 +#define TT_FONT_SIZE 32.0 + +#define GENERATE_REF 0 + +static uint32_t data[16] = { + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff, + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff +}; + +static const char *png_filename = "romedalen.png"; + +static cairo_t * +paint (cairo_t *cr) +{ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + cairo_translate (cr, 2, 2); + cairo_scale (cr, 0.5, 0.5); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + return cr; +} + +static cairo_t * +paint_alpha (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +paint_alpha_solid_clip (cairo_t *cr) +{ + cairo_test_paint_checkered (cr); + + cairo_rectangle (cr, 2.5, 2.5, 27, 27); + cairo_clip (cr); + + cairo_set_source_rgb (cr, 1., 0.,0.); + cairo_paint_with_alpha (cr, 0.5); + + return cr; +} + +static cairo_t * +paint_alpha_clip (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_rectangle (cr, 10.5, 10.5, 11, 11); + cairo_clip (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +paint_alpha_clip_mask (cairo_t *cr) +{ + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_test_paint_checkered (cr); + + cairo_move_to (cr, 16, 5); + cairo_line_to (cr, 5, 16); + cairo_line_to (cr, 16, 27); + cairo_line_to (cr, 27, 16); + cairo_clip (cr); + + cairo_scale (cr, 4, 4); + + cairo_set_source_surface (cr, surface, 2 , 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint_with_alpha (cr, 0.5); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_t * +select_font_face (cairo_t *cr) +{ + /* We draw in the default black, so paint white first. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + + cairo_set_font_size (cr, TEXT_SIZE); + cairo_move_to (cr, 0, TEXT_SIZE); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Serif", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, "i-am-serif"); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, " i-am-sans"); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans Mono", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, " i-am-mono"); + + return cr; +} + +static cairo_t * +fill_alpha (cairo_t *cr) +{ + const double alpha = 1./3; + int n; + + /* flatten to white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* square */ + cairo_rectangle (cr, PAD, PAD, SIZE, SIZE); + cairo_set_source_rgba (cr, 1, 0, 0, alpha); + cairo_fill (cr); + + /* circle */ + cairo_translate (cr, SIZE + 2 * PAD, 0); + cairo_arc (cr, PAD + SIZE / 2., PAD + SIZE / 2., SIZE / 2., 0, 2 * M_PI); + cairo_set_source_rgba (cr, 0, 1, 0, alpha); + cairo_fill (cr); + + /* triangle */ + cairo_translate (cr, 0, SIZE + 2 * PAD); + cairo_move_to (cr, PAD + SIZE / 2, PAD); + cairo_line_to (cr, PAD + SIZE, PAD + SIZE); + cairo_line_to (cr, PAD, PAD + SIZE); + cairo_set_source_rgba (cr, 0, 0, 1, alpha); + cairo_fill (cr); + + /* star */ + cairo_translate (cr, -(SIZE + 2 * PAD) + SIZE/2., SIZE/2.); + for (n = 0; n < 5; n++) { + cairo_line_to (cr, + SIZE/2 * cos (2*n * 2*M_PI / 10), + SIZE/2 * sin (2*n * 2*M_PI / 10)); + + cairo_line_to (cr, + SIZE/4 * cos ((2*n+1)*2*M_PI / 10), + SIZE/4 * sin ((2*n+1)*2*M_PI / 10)); + } + cairo_set_source_rgba (cr, 0, 0, 0, alpha); + cairo_fill (cr); + + return cr; +} + +static cairo_t * +self_intersecting (cairo_t *cr) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, 1.0, 1.0); + + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + + /* First draw the desired shape with a fill */ + cairo_rectangle (cr, 0.5, 0.5, 4.0, 4.0); + cairo_rectangle (cr, 3.5, 3.5, 4.0, 4.0); + cairo_rectangle (cr, 3.5, 1.5, -2.0, 2.0); + cairo_rectangle (cr, 6.5, 4.5, -2.0, 2.0); + + cairo_fill (cr); + + /* Then try the same thing with a stroke */ + cairo_translate (cr, 0, 10); + cairo_move_to (cr, 1.0, 1.0); + cairo_rel_line_to (cr, 3.0, 0.0); + cairo_rel_line_to (cr, 0.0, 6.0); + cairo_rel_line_to (cr, 3.0, 0.0); + cairo_rel_line_to (cr, 0.0, -3.0); + cairo_rel_line_to (cr, -6.0, 0.0); + cairo_close_path (cr); + + cairo_set_line_width (cr, 1.0); + cairo_stroke (cr); + + return cr; +} + +static void +draw_text_transform (cairo_t *cr) +{ + cairo_matrix_t tm; + + /* skew */ + cairo_matrix_init (&tm, 1, 0, + -0.25, 1, + 0, 0); + cairo_matrix_scale (&tm, TT_FONT_SIZE, TT_FONT_SIZE); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, 50, TT_SIZE-TT_PAD); + cairo_show_text (cr, "A"); + + /* rotate and scale */ + cairo_matrix_init_rotate (&tm, M_PI / 2); + cairo_matrix_scale (&tm, TT_FONT_SIZE, TT_FONT_SIZE * 2.0); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, TT_PAD, TT_PAD + 25); + cairo_show_text (cr, "A"); + + cairo_matrix_init_rotate (&tm, M_PI / 2); + cairo_matrix_scale (&tm, TT_FONT_SIZE * 2.0, TT_FONT_SIZE); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, TT_PAD, TT_PAD + 50); + cairo_show_text (cr, "A"); +} + +static cairo_t * +text_transform (cairo_t *cr) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_pattern_t *pattern; + + cairo_set_source_rgb (cr, 1., 1., 1.); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0., 0., 0.); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + draw_text_transform (cr); + + cairo_translate (cr, TT_SIZE, TT_SIZE); + cairo_rotate (cr, M_PI); + + pattern = cairo_test_create_pattern_from_png (ctx, png_filename); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + draw_text_transform (cr); + + return cr; +} + +/* And here begins the recording and replaying... */ + +static cairo_t * +record_create (cairo_t *target) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_recording_surface_create (cairo_surface_get_content (cairo_get_target (target)), NULL); + cr = cairo_test_create (surface, cairo_test_get_context (target)); + cairo_surface_destroy (surface); + + return cr; +} + +static cairo_surface_t * +record_get (cairo_t *target) +{ + cairo_surface_t *surface; + + surface = cairo_surface_reference (cairo_get_target (target)); + cairo_destroy (target); + + return surface; +} + +static cairo_test_status_t +record_replay (cairo_t *cr, cairo_t *(*func)(cairo_t *), int width, int height) +{ + cairo_surface_t *surface; + int x, y; + +#if GENERATE_REF + { + cairo_surface_t *image; + uint8_t *data, *tmp; + int stride, bpp; + + surface = cairo_get_target (cr); + + func(cr); + + image = cairo_surface_map_to_image (surface, NULL); + + switch (cairo_image_surface_get_format (image)) { + case CAIRO_FORMAT_ARGB32: + case CAIRO_FORMAT_RGB24: + case CAIRO_FORMAT_RGB30: + bpp=4; + break; + case CAIRO_FORMAT_RGB16_565: + bpp=2; + break; + case CAIRO_FORMAT_A8: + bpp=1; + break; + case CAIRO_FORMAT_A1: + case CAIRO_FORMAT_INVALID: + default: + return CAIRO_TEST_FAILURE; + } + + data = cairo_image_surface_get_data (image); + stride = cairo_image_surface_get_stride (image); + + tmp = malloc (stride); + if (tmp == NULL) + return CAIRO_TEST_FAILURE; + + for (y = 0; y < height; y++) { + uint8_t *row = data + y * stride; + for (x = 0; x < width/2; x++) { + memcpy (tmp, row + bpp * x, bpp); + memcpy (row + bpp * x, row + bpp * (width - x - 1), bpp); + memcpy (row + bpp * (width - x - 1), tmp, bpp); + } + } + + for (y = 0; y < height/2; y++) { + memcpy (tmp, data + y * stride, stride); + memcpy (data + y * stride, data + (height - y - 1) * stride, stride); + memcpy (data + (height - y - 1) * stride, tmp, stride); + } + + free (tmp); + + cairo_surface_unmap_image (surface, image); + } +#else + surface = record_get (func (record_create (cr))); + + cairo_scale (cr, -1, -1); + cairo_translate (cr, -width, -height); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_NONE); + + for (y = 0; y < height; y += 2) { + for (x = 0; x < width; x += 2) { + cairo_rectangle (cr, x, y, 2, 2); + cairo_clip (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + } + } +#endif + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +record_whole_replay (cairo_t *cr, cairo_t *(*func)(cairo_t *), int width, int height) +{ + cairo_surface_t *surface; + +#if GENERATE_REF + { + cairo_surface_t *image; + uint8_t *data, *tmp; + int stride, bpp; + int x, y; + + surface = cairo_get_target (cr); + + func(cr); + + image = cairo_surface_map_to_image (surface, NULL); + + switch (cairo_image_surface_get_format (image)) { + case CAIRO_FORMAT_ARGB32: + case CAIRO_FORMAT_RGB24: + case CAIRO_FORMAT_RGB30: + bpp=4; + break; + case CAIRO_FORMAT_RGB16_565: + bpp=2; + break; + case CAIRO_FORMAT_A8: + bpp=1; + break; + case CAIRO_FORMAT_A1: + case CAIRO_FORMAT_INVALID: + default: + return CAIRO_TEST_FAILURE; + } + + data = cairo_image_surface_get_data (image); + stride = cairo_image_surface_get_stride (image); + + tmp = malloc (stride); + if (tmp == NULL) + return CAIRO_TEST_FAILURE; + + for (y = 0; y < height; y++) { + uint8_t *row = data + y * stride; + for (x = 0; x < width/2; x++) { + memcpy (tmp, row + bpp * x, bpp); + memcpy (row + bpp * x, row + bpp * (width - x - 1), bpp); + memcpy (row + bpp * (width - x - 1), tmp, bpp); + } + } + + for (y = 0; y < height/2; y++) { + memcpy (tmp, data + y * stride, stride); + memcpy (data + y * stride, data + (height - y - 1) * stride, stride); + memcpy (data + (height - y - 1) * stride, tmp, stride); + } + + free (tmp); + + cairo_surface_unmap_image (surface, image); + } +#else + surface = record_get (func (record_create (cr))); + + cairo_scale (cr, -1, -1); + cairo_translate (cr, -width, -height); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_NONE); + + cairo_paint (cr); +#endif + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +record_paint (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint, width, height); +} + +static cairo_test_status_t +record_paint_alpha (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha, width, height); +} + +static cairo_test_status_t +record_paint_alpha_solid_clip (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_solid_clip, width, height); +} + +static cairo_test_status_t +record_paint_alpha_clip (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_clip, width, height); +} + +static cairo_test_status_t +record_paint_alpha_clip_mask (cairo_t *cr, int width, int height) +{ + return record_replay (cr, paint_alpha_clip_mask, width, height); +} + +static cairo_test_status_t +record_fill_alpha (cairo_t *cr, int width, int height) +{ + return record_replay (cr, fill_alpha, width, height); +} + +static cairo_test_status_t +record_self_intersecting (cairo_t *cr, int width, int height) +{ + return record_replay (cr, self_intersecting, width, height); +} + +static cairo_test_status_t +record_select_font_face (cairo_t *cr, int width, int height) +{ + return record_replay (cr, select_font_face, width, height); +} + +static cairo_test_status_t +record_text_transform (cairo_t *cr, int width, int height) +{ + return record_replay (cr, text_transform, width, height); +} + +static cairo_test_status_t +record_whole_paint (cairo_t *cr, int width, int height) +{ + return record_whole_replay (cr, paint, width, height); +} + +static cairo_test_status_t +record_whole_paint_alpha (cairo_t *cr, int width, int height) +{ + return record_whole_replay (cr, paint_alpha, width, height); +} + +static cairo_test_status_t +record_whole_paint_alpha_solid_clip (cairo_t *cr, int width, int height) +{ + return record_whole_replay (cr, paint_alpha_solid_clip, width, height); +} + +static cairo_test_status_t +record_whole_paint_alpha_clip (cairo_t *cr, int width, int height) +{ + return record_whole_replay (cr, paint_alpha_clip, width, height); +} + +static cairo_test_status_t +record_whole_paint_alpha_clip_mask (cairo_t *cr, int width, int height) +{ + return record_whole_replay (cr, paint_alpha_clip_mask, width, height); +} + +static cairo_test_status_t +record_whole_fill_alpha (cairo_t *cr, int width, int height) +{ + return record_whole_replay (cr, fill_alpha, width, height); +} + +static cairo_test_status_t +record_whole_self_intersecting (cairo_t *cr, int width, int height) +{ + return record_whole_replay (cr, self_intersecting, width, height); +} + +static cairo_test_status_t +record_whole_select_font_face (cairo_t *cr, int width, int height) +{ + return record_whole_replay (cr, select_font_face, width, height); +} + +static cairo_test_status_t +record_whole_text_transform (cairo_t *cr, int width, int height) +{ + return record_whole_replay (cr, text_transform, width, height); +} + +CAIRO_TEST (recordflip_whole_paint, + "Test replayed calls to cairo_paint", + "paint,record", /* keywords */ + NULL, /* requirements */ + 8, 8, + NULL, record_whole_paint) +CAIRO_TEST (recordflip_whole_paint_alpha, + "Simple test of cairo_paint_with_alpha", + "record, paint, alpha", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_whole_paint_alpha) +CAIRO_TEST (recordflip_whole_paint_alpha_solid_clip, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_whole_paint_alpha_solid_clip) +CAIRO_TEST (recordflip_whole_paint_alpha_clip, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_whole_paint_alpha_clip) +CAIRO_TEST (recordflip_whole_paint_alpha_clip_mask, + "Simple test of cairo_paint_with_alpha+triangular clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_whole_paint_alpha_clip_mask) +CAIRO_TEST (recordflip_whole_fill_alpha, + "Tests using set_rgba();fill()", + "record,fill, alpha", /* keywords */ + NULL, /* requirements */ + (2*SIZE + 4*PAD), (2*SIZE + 4*PAD), + NULL, record_whole_fill_alpha) +CAIRO_TEST (recordflip_whole_select_font_face, + "Tests using cairo_select_font_face to draw text in different faces", + "record, font", /* keywords */ + NULL, /* requirements */ + 192, (TEXT_SIZE + 4), + NULL, record_whole_select_font_face) +CAIRO_TEST (recordflip_whole_self_intersecting, + "Test strokes of self-intersecting paths", + "record, stroke, trap", /* keywords */ + NULL, /* requirements */ + 10, 20, + NULL, record_whole_self_intersecting) +CAIRO_TEST (recordflip_whole_text_transform, + "Test various applications of the font matrix", + "record, text, transform", /* keywords */ + NULL, /* requirements */ + TT_SIZE, TT_SIZE, + NULL, record_whole_text_transform) + + +CAIRO_TEST (recordflip_paint, + "Test replayed calls to cairo_paint", + "paint,record", /* keywords */ + NULL, /* requirements */ + 8, 8, + NULL, record_paint) +CAIRO_TEST (recordflip_paint_alpha, + "Simple test of cairo_paint_with_alpha", + "record, paint, alpha", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_paint_alpha) +CAIRO_TEST (recordflip_paint_alpha_solid_clip, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_paint_alpha_solid_clip) +CAIRO_TEST (recordflip_paint_alpha_clip, + "Simple test of cairo_paint_with_alpha+unaligned clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_paint_alpha_clip) +CAIRO_TEST (recordflip_paint_alpha_clip_mask, + "Simple test of cairo_paint_with_alpha+triangular clip", + "record, paint, alpha, clip", /* keywords */ + NULL, /* requirements */ + 32, 32, + NULL, record_paint_alpha_clip_mask) +CAIRO_TEST (recordflip_fill_alpha, + "Tests using set_rgba();fill()", + "record,fill, alpha", /* keywords */ + NULL, /* requirements */ + (2*SIZE + 4*PAD), (2*SIZE + 4*PAD), + NULL, record_fill_alpha) +CAIRO_TEST (recordflip_select_font_face, + "Tests using cairo_select_font_face to draw text in different faces", + "record, font", /* keywords */ + NULL, /* requirements */ + 192, (TEXT_SIZE + 4), + NULL, record_select_font_face) +CAIRO_TEST (recordflip_self_intersecting, + "Test strokes of self-intersecting paths", + "record, stroke, trap", /* keywords */ + NULL, /* requirements */ + 10, 20, + NULL, record_self_intersecting) +CAIRO_TEST (recordflip_text_transform, + "Test various applications of the font matrix", + "record, text, transform", /* keywords */ + NULL, /* requirements */ + TT_SIZE, TT_SIZE, + NULL, record_text_transform) diff --git a/local/recipes/libs/cairo/source/test/recording-ink-extents.c b/local/recipes/libs/cairo/source/test/recording-ink-extents.c new file mode 100644 index 0000000000..dcc905ddfc --- /dev/null +++ b/local/recipes/libs/cairo/source/test/recording-ink-extents.c @@ -0,0 +1,172 @@ +/* + * Copyright © 2016 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Authors: + * Adrian Johnson + */ + +#include "cairo-test.h" + +/* Check cairo_recording_surface_ink_extents() returns correct extents. */ + + +static cairo_test_status_t +check_extents (cairo_test_context_t *cr, + cairo_surface_t *recording_surface, + const char * func_name, + double expected_x, double expected_y, double expected_w, double expected_h) +{ + double x, y, w, h; + cairo_recording_surface_ink_extents (recording_surface, &x, &y, &w, &h); + if (x != expected_x || + y != expected_y || + w != expected_w || + h != expected_h) + { + cairo_test_log (cr, + "%s: x: %f, y: %f, w: %f, h: %f\n" + " expected: x: %f, y: %f, w: %f, h: %f\n", + func_name, + x, y, w, h, + expected_x, expected_y, + expected_w, expected_h); + return CAIRO_TEST_ERROR; + } + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +unbounded_fill (cairo_test_context_t *test_cr) +{ + cairo_test_status_t status; + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + cr = cairo_create (surface); + + cairo_rectangle (cr, -300, -150, 900, 600); + cairo_fill (cr); + + cairo_destroy(cr); + + status = check_extents (test_cr, surface, __func__, + -300, -150, 900, 600); + cairo_surface_destroy (surface); + return status; +} + +static cairo_test_status_t +bounded_fill (cairo_test_context_t *test_cr) +{ + cairo_test_status_t status; + cairo_surface_t *surface; + cairo_t *cr; + cairo_rectangle_t extents = { -150, -100, 300, 200 }; + + surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, &extents); + cr = cairo_create (surface); + + cairo_rectangle (cr, -300, -300, 650, 600); + cairo_fill (cr); + + cairo_destroy(cr); + + status = check_extents (test_cr, surface, __func__, + -150, -100, 300, 200); + cairo_surface_destroy (surface); + return status; +} + +static cairo_test_status_t +unbounded_paint (cairo_test_context_t *test_cr) +{ + cairo_test_status_t status; + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + cr = cairo_create (surface); + + cairo_paint (cr); + + cairo_destroy(cr); + + status = check_extents (test_cr, surface, __func__, + -(1 << 23), -(1 << 23), -1, -1); + cairo_surface_destroy (surface); + return status; +} + +static cairo_test_status_t +bounded_paint (cairo_test_context_t *test_cr) +{ + cairo_test_status_t status; + cairo_surface_t *surface; + cairo_t *cr; + cairo_rectangle_t extents = { -150, -100, 300, 200 }; + + surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, &extents); + cr = cairo_create (surface); + + cairo_paint (cr); + + cairo_destroy(cr); + + status = check_extents (test_cr, surface, __func__, + -150, -100, 300, 200); + cairo_surface_destroy (surface); + return status; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *cr) +{ + cairo_test_status_t status; + + status = unbounded_fill (cr); + if (status != CAIRO_TEST_SUCCESS) + return status; + + status = bounded_fill (cr); + if (status != CAIRO_TEST_SUCCESS) + return status; + + status = unbounded_paint (cr); + if (status != CAIRO_TEST_SUCCESS) + return status; + + status = bounded_paint (cr); + if (status != CAIRO_TEST_SUCCESS) + return status; + + return CAIRO_TEST_SUCCESS; +} + + +CAIRO_TEST (recording_ink_extents, + "Test cairo_recording_surface_ink_extents()", + "api,recording,extents", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/recording-surface-extend.c b/local/recipes/libs/cairo/source/test/recording-surface-extend.c new file mode 100644 index 0000000000..0566545301 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/recording-surface-extend.c @@ -0,0 +1,174 @@ +/* + * Copyright © 2007 Adrian Johnson + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Authors: + * Adrian Johnson + * Chris Wilson + */ + +#include "cairo-test.h" + +#define PAT_WIDTH 120 +#define PAT_HEIGHT 120 +#define SIZE (PAT_WIDTH*2) +#define PAD 2 +#define WIDTH (PAD + SIZE + PAD) +#define HEIGHT WIDTH + + +/* This test is designed to test painting a recording surface pattern with + * CAIRO_EXTEND_NONE and a non identity pattern matrix. + */ +static cairo_pattern_t *create_pattern (cairo_t *target) +{ + cairo_surface_t *surface; + cairo_pattern_t *pattern; + cairo_t *cr; + + surface = cairo_surface_create_similar (cairo_get_group_target (target), + CAIRO_CONTENT_COLOR_ALPHA, + PAT_WIDTH, PAT_HEIGHT); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgba (cr, 1, 0, 1, 0.5); + cairo_rectangle (cr, PAT_WIDTH/6.0, PAT_HEIGHT/6.0, PAT_WIDTH/4.0, PAT_HEIGHT/4.0); + cairo_fill (cr); + + cairo_set_source_rgba (cr, 0, 1, 1, 0.5); + cairo_rectangle (cr, PAT_WIDTH/2.0, PAT_HEIGHT/2.0, PAT_WIDTH/4.0, PAT_HEIGHT/4.0); + cairo_fill (cr); + + cairo_set_line_width (cr, 1); + cairo_move_to (cr, PAT_WIDTH/6.0, 0); + cairo_line_to (cr, 0, 0); + cairo_line_to (cr, 0, PAT_HEIGHT/6.0); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_stroke (cr); + cairo_move_to (cr, PAT_WIDTH/6.0, PAT_HEIGHT); + cairo_line_to (cr, 0, PAT_HEIGHT); + cairo_line_to (cr, 0, 5*PAT_HEIGHT/6.0); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_stroke (cr); + cairo_move_to (cr, 5*PAT_WIDTH/6.0, 0); + cairo_line_to (cr, PAT_WIDTH, 0); + cairo_line_to (cr, PAT_WIDTH, PAT_HEIGHT/6.0); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_stroke (cr); + cairo_move_to (cr, 5*PAT_WIDTH/6.0, PAT_HEIGHT); + cairo_line_to (cr, PAT_WIDTH, PAT_HEIGHT); + cairo_line_to (cr, PAT_WIDTH, 5*PAT_HEIGHT/6.0); + cairo_set_source_rgb (cr, 1, 1, 0); + cairo_stroke (cr); + + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_set_line_width (cr, PAT_WIDTH/10.0); + + cairo_move_to (cr, 0, PAT_HEIGHT/4.0); + cairo_line_to (cr, PAT_WIDTH, PAT_HEIGHT/4.0); + cairo_stroke (cr); + + cairo_move_to (cr, PAT_WIDTH/4.0, 0); + cairo_line_to (cr, PAT_WIDTH/4.0, PAT_WIDTH); + cairo_stroke (cr); + + pattern = cairo_pattern_create_for_surface (cairo_get_target (cr)); + cairo_destroy (cr); + + return pattern; +} + +static cairo_test_status_t +draw (cairo_t *cr, cairo_extend_t extend) +{ + cairo_pattern_t *pattern; + cairo_matrix_t mat; + + cairo_translate (cr, PAD, PAD); + + pattern = create_pattern (cr); + + cairo_matrix_init_identity (&mat); + cairo_matrix_scale (&mat, 2, 1.5); + cairo_matrix_rotate (&mat, 1); + cairo_matrix_translate (&mat, -PAT_WIDTH/4.0, -PAT_WIDTH/2.0); + cairo_pattern_set_matrix (pattern, &mat); + cairo_pattern_set_extend (pattern, extend); + + cairo_set_source (cr, pattern); + cairo_paint (cr); + + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +none (cairo_t *cr, int width, int height) +{ + return draw (cr, CAIRO_EXTEND_NONE); +} + +static cairo_test_status_t +repeat (cairo_t *cr, int width, int height) +{ + return draw (cr, CAIRO_EXTEND_REPEAT); +} + +static cairo_test_status_t +reflect (cairo_t *cr, int width, int height) +{ + return draw (cr, CAIRO_EXTEND_REFLECT); +} + +static cairo_test_status_t +pad (cairo_t *cr, int width, int height) +{ + return draw (cr, CAIRO_EXTEND_PAD); +} + +CAIRO_TEST (recording_surface_extend_none, + "Paint recording surface pattern with extend modes", + "recording, extend", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, none) +CAIRO_TEST (recording_surface_extend_repeat, + "Paint recording surface pattern with extend modes", + "recording, extend", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, repeat) +CAIRO_TEST (recording_surface_extend_reflect, + "Paint recording surface pattern with extend modes", + "recording, extend", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, reflect) +CAIRO_TEST (recording_surface_extend_pad, + "Paint recording surface pattern with extend modes", + "recording, extend", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, pad) diff --git a/local/recipes/libs/cairo/source/test/recording-surface-pattern.c b/local/recipes/libs/cairo/source/test/recording-surface-pattern.c new file mode 100644 index 0000000000..5a5fee2b06 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/recording-surface-pattern.c @@ -0,0 +1,162 @@ +/* + * Copyright © 2007 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#define PAT_WIDTH 120 +#define PAT_HEIGHT 120 +#define SIZE (PAT_WIDTH*2) +#define PAD 2 +#define WIDTH (PAD + SIZE + PAD) +#define HEIGHT WIDTH + + +/* This test is designed to test painting a recording surface pattern with + * CAIRO_EXTEND_NONE and a non identity pattern matrix. + */ +static cairo_pattern_t *create_pattern (cairo_t *target) +{ + cairo_surface_t *surface; + cairo_pattern_t *pattern; + cairo_t *cr; + + surface = cairo_surface_create_similar (cairo_get_group_target (target), + CAIRO_CONTENT_COLOR_ALPHA, + PAT_WIDTH, PAT_HEIGHT); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgba (cr, 1, 0, 1, 0.5); + cairo_rectangle (cr, PAT_WIDTH/6.0, PAT_HEIGHT/6.0, PAT_WIDTH/4.0, PAT_HEIGHT/4.0); + cairo_fill (cr); + + cairo_set_source_rgba (cr, 0, 1, 1, 0.5); + cairo_rectangle (cr, PAT_WIDTH/2.0, PAT_HEIGHT/2.0, PAT_WIDTH/4.0, PAT_HEIGHT/4.0); + cairo_fill (cr); + + cairo_set_line_width (cr, 1); + cairo_move_to (cr, PAT_WIDTH/6.0, 0); + cairo_line_to (cr, 0, 0); + cairo_line_to (cr, 0, PAT_HEIGHT/6.0); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_stroke (cr); + cairo_move_to (cr, PAT_WIDTH/6.0, PAT_HEIGHT); + cairo_line_to (cr, 0, PAT_HEIGHT); + cairo_line_to (cr, 0, 5*PAT_HEIGHT/6.0); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_stroke (cr); + cairo_move_to (cr, 5*PAT_WIDTH/6.0, 0); + cairo_line_to (cr, PAT_WIDTH, 0); + cairo_line_to (cr, PAT_WIDTH, PAT_HEIGHT/6.0); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_stroke (cr); + cairo_move_to (cr, 5*PAT_WIDTH/6.0, PAT_HEIGHT); + cairo_line_to (cr, PAT_WIDTH, PAT_HEIGHT); + cairo_line_to (cr, PAT_WIDTH, 5*PAT_HEIGHT/6.0); + cairo_set_source_rgb (cr, 1, 1, 0); + cairo_stroke (cr); + + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_set_line_width (cr, PAT_WIDTH/10.0); + + cairo_move_to (cr, 0, PAT_HEIGHT/4.0); + cairo_line_to (cr, PAT_WIDTH, PAT_HEIGHT/4.0); + cairo_stroke (cr); + + cairo_move_to (cr, PAT_WIDTH/4.0, 0); + cairo_line_to (cr, PAT_WIDTH/4.0, PAT_WIDTH); + cairo_stroke (cr); + + pattern = cairo_pattern_create_for_surface (cairo_get_target (cr)); + cairo_destroy (cr); + + return pattern; +} + +static cairo_test_status_t +over (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + cairo_matrix_t mat; + + cairo_translate (cr, PAD, PAD); + + pattern = create_pattern (cr); + + cairo_matrix_init_identity (&mat); + cairo_matrix_scale (&mat, 2, 1.5); + cairo_matrix_rotate (&mat, 1); + cairo_matrix_translate (&mat, -PAT_WIDTH/4.0, -PAT_WIDTH/2.0); + cairo_pattern_set_matrix (pattern, &mat); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_NONE); + + cairo_set_source (cr, pattern); + cairo_paint (cr); + + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +source (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + cairo_matrix_t mat; + + cairo_translate (cr, PAD, PAD); + + pattern = create_pattern (cr); + + cairo_matrix_init_identity (&mat); + cairo_matrix_scale (&mat, 2, 1.5); + cairo_matrix_rotate (&mat, 1); + cairo_matrix_translate (&mat, -PAT_WIDTH/4.0, -PAT_WIDTH/2.0); + cairo_pattern_set_matrix (pattern, &mat); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_NONE); + + cairo_set_source (cr, pattern); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (recording_surface_over, + "Paint recording surface pattern with non identity pattern matrix", + "recording", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, over) + +CAIRO_TEST (recording_surface_source, + "Paint recording surface pattern with non identity pattern matrix", + "recording", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, source) diff --git a/local/recipes/libs/cairo/source/test/rectangle-rounding-error.c b/local/recipes/libs/cairo/source/test/rectangle-rounding-error.c new file mode 100644 index 0000000000..6ad99ae208 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/rectangle-rounding-error.c @@ -0,0 +1,64 @@ +/* + * Copyright © 2005 Bertram Felgenhauer + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the author not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The author makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHOR. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Bertram Felgenhauer + */ + +#include "cairo-test.h" + +/* Test case for: + * + * https://bugs.freedesktop.org/show_bug.cgi?id=4137 + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_translate(cr, -300, -300); + cairo_scale(cr, 677.0/26, 677.0/26); + cairo_translate(cr, 1, 1); + + /* this should draw a seamless 2x2 rectangle */ + cairo_rectangle(cr, 11, 11, 1, 1); + cairo_rectangle(cr, 11, 12, 1, 1); + cairo_rectangle(cr, 12, 11, 1, 1); + cairo_rectangle(cr, 12, 12, 1, 1); + + cairo_set_source_rgb(cr, 0, 0, 0); + cairo_fill(cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (rectangle_rounding_error, + "This demonstrates (or not) a rounding error that causes a gap between " + "two neighbouring rectangles.", + "trap", /* keywords */ + "target=raster", /* requirements */ + 76, 76, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/rectilinear-dash-scale.c b/local/recipes/libs/cairo/source/test/rectilinear-dash-scale.c new file mode 100644 index 0000000000..34f334561f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/rectilinear-dash-scale.c @@ -0,0 +1,196 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2008 Chris Wilson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + * Chris Wilson + * + * Based on the original test/rectilinear-stroke.c by Carl D. Worth. + */ + +#include "cairo-test.h" + +#define SIZE 50 + +static void +draw_dashes (cairo_t *cr) +{ + const double dash_square[4] = {4, 2, 2, 2}; + const double dash_butt[4] = {5, 1, 3, 1}; + + cairo_save (cr); + + cairo_set_dash (cr, dash_square, 4, 0); + + cairo_set_line_width (cr, 1.0); + cairo_translate (cr, 1, 1); + + /* Draw everything first with square caps. */ + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + + /* Draw horizontal and vertical segments, each in both + * directions. */ + cairo_move_to (cr, 4.5, 0.5); + cairo_rel_line_to (cr, 2.0, 0.0); + + cairo_move_to (cr, 10.5, 4.5); + cairo_rel_line_to (cr, 0.0, 2.0); + + cairo_move_to (cr, 6.5, 10.5); + cairo_rel_line_to (cr, -2.0, 0.0); + + cairo_move_to (cr, 0.5, 6.5); + cairo_rel_line_to (cr, 0.0, -2.0); + + /* Draw right angle turns in four directions. */ + cairo_move_to (cr, 0.5, 2.5); + cairo_rel_line_to (cr, 0.0, -2.0); + cairo_rel_line_to (cr, 2.0, 0.0); + + cairo_move_to (cr, 8.5, 0.5); + cairo_rel_line_to (cr, 2.0, 0.0); + cairo_rel_line_to (cr, 0.0, 2.0); + + cairo_move_to (cr, 10.5, 8.5); + cairo_rel_line_to (cr, 0.0, 2.0); + cairo_rel_line_to (cr, -2.0, 0.0); + + cairo_move_to (cr, 2.5, 10.5); + cairo_rel_line_to (cr, -2.0, 0.0); + cairo_rel_line_to (cr, 0.0, -2.0); + + cairo_stroke (cr); + + /* Draw a closed-path rectangle */ + cairo_rectangle (cr, 0.5, 12.5, 10.0, 10.0); + cairo_set_dash (cr, dash_square, 4, 2); + cairo_stroke (cr); + + cairo_translate (cr, 12, 0); + + /* Now draw the same results, but with butt caps. */ + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_dash (cr, dash_butt, 4, 0.0); + + /* Draw horizontal and vertical segments, each in both + * directions. */ + cairo_move_to (cr, 4.0, 0.5); + cairo_rel_line_to (cr, 3.0, 0.0); + + cairo_move_to (cr, 10.5, 4.0); + cairo_rel_line_to (cr, 0.0, 3.0); + + cairo_move_to (cr, 7.0, 10.5); + cairo_rel_line_to (cr, -3.0, 0.0); + + cairo_move_to (cr, 0.5, 7.0); + cairo_rel_line_to (cr, 0.0, -3.0); + + /* Draw right angle turns in four directions. */ + cairo_move_to (cr, 0.5, 3.0); + cairo_rel_line_to (cr, 0.0, -2.5); + cairo_rel_line_to (cr, 2.5, 0.0); + + cairo_move_to (cr, 8.0, 0.5); + cairo_rel_line_to (cr, 2.5, 0.0); + cairo_rel_line_to (cr, 0.0, 2.5); + + cairo_move_to (cr, 10.5, 8.0); + cairo_rel_line_to (cr, 0.0, 2.5); + cairo_rel_line_to (cr, -2.5, 0.0); + + cairo_move_to (cr, 3.0, 10.5); + cairo_rel_line_to (cr, -2.5, 0.0); + cairo_rel_line_to (cr, 0.0, -2.5); + + cairo_stroke (cr); + + /* Draw a closed-path rectangle */ + cairo_set_dash (cr, dash_butt, 4, 2.5); + cairo_rectangle (cr, 0.5, 12.5, 10.0, 10.0); + cairo_stroke (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +dashes (cairo_t *cr) +{ + /* Paint background white, then draw in black. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + draw_dashes (cr); + + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + cairo_translate (cr, 0, SIZE); + cairo_scale (cr, 1, -1); + draw_dashes (cr); + cairo_restore (cr); + + cairo_save (cr); + cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); + cairo_translate (cr, SIZE, 0); + cairo_scale (cr, -1, 1); + draw_dashes (cr); + cairo_restore (cr); + + cairo_save (cr); + cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); + cairo_translate (cr, SIZE, SIZE); + cairo_scale (cr, -1, -1); + draw_dashes (cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +aligned (cairo_t *cr, int width, int height) +{ + cairo_scale (cr, 4, 2); + return dashes(cr); +} + +static cairo_test_status_t +unaligned (cairo_t *cr, int width, int height) +{ + cairo_scale (cr, 3.9, 1.9); + return dashes(cr); +} + +CAIRO_TEST (rectilinear_dash_scale, + "Test dashed rectilinear stroke operations (covering only whole pixels) after scaling", + "stroke, dash", /* keywords */ + NULL, /* requirements */ + 4*SIZE, 2*SIZE, + NULL, aligned) + +CAIRO_TEST (rectilinear_dash_scale_unaligned, + "Test dashed rectilinear stroke operations (covering partial pixels) after scaling", + "stroke, dash", /* keywords */ + NULL, /* requirements */ + 4*SIZE, 2*SIZE, + NULL, unaligned) diff --git a/local/recipes/libs/cairo/source/test/rectilinear-dash.c b/local/recipes/libs/cairo/source/test/rectilinear-dash.c new file mode 100644 index 0000000000..954a2a042b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/rectilinear-dash.c @@ -0,0 +1,176 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2008 Chris Wilson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + * Chris Wilson + * + * Based on the original test/rectilinear-stroke.c by Carl D. Worth. + */ + +#include "cairo-test.h" + +#define SIZE 50 + +static void +draw_dashes (cairo_t *cr) +{ + const double dash_square[4] = {4, 2, 2, 2}; + const double dash_butt[4] = {5, 1, 3, 1}; + + cairo_save (cr); + + cairo_set_dash (cr, dash_square, 4, 0); + + cairo_set_line_width (cr, 1.0); + cairo_translate (cr, 1, 1); + + /* Draw everything first with square caps. */ + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + + /* Draw horizontal and vertical segments, each in both + * directions. */ + cairo_move_to (cr, 4.5, 0.5); + cairo_rel_line_to (cr, 2.0, 0.0); + + cairo_move_to (cr, 10.5, 4.5); + cairo_rel_line_to (cr, 0.0, 2.0); + + cairo_move_to (cr, 6.5, 10.5); + cairo_rel_line_to (cr, -2.0, 0.0); + + cairo_move_to (cr, 0.5, 6.5); + cairo_rel_line_to (cr, 0.0, -2.0); + + /* Draw right angle turns in four directions. */ + cairo_move_to (cr, 0.5, 2.5); + cairo_rel_line_to (cr, 0.0, -2.0); + cairo_rel_line_to (cr, 2.0, 0.0); + + cairo_move_to (cr, 8.5, 0.5); + cairo_rel_line_to (cr, 2.0, 0.0); + cairo_rel_line_to (cr, 0.0, 2.0); + + cairo_move_to (cr, 10.5, 8.5); + cairo_rel_line_to (cr, 0.0, 2.0); + cairo_rel_line_to (cr, -2.0, 0.0); + + cairo_move_to (cr, 2.5, 10.5); + cairo_rel_line_to (cr, -2.0, 0.0); + cairo_rel_line_to (cr, 0.0, -2.0); + + cairo_stroke (cr); + + /* Draw a closed-path rectangle */ + cairo_rectangle (cr, 0.5, 12.5, 10.0, 10.0); + cairo_set_dash (cr, dash_square, 4, 2); + cairo_stroke (cr); + + cairo_translate (cr, 12, 0); + + /* Now draw the same results, but with butt caps. */ + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_dash (cr, dash_butt, 4, 0.0); + + /* Draw horizontal and vertical segments, each in both + * directions. */ + cairo_move_to (cr, 4.0, 0.5); + cairo_rel_line_to (cr, 3.0, 0.0); + + cairo_move_to (cr, 10.5, 4.0); + cairo_rel_line_to (cr, 0.0, 3.0); + + cairo_move_to (cr, 7.0, 10.5); + cairo_rel_line_to (cr, -3.0, 0.0); + + cairo_move_to (cr, 0.5, 7.0); + cairo_rel_line_to (cr, 0.0, -3.0); + + /* Draw right angle turns in four directions. */ + cairo_move_to (cr, 0.5, 3.0); + cairo_rel_line_to (cr, 0.0, -2.5); + cairo_rel_line_to (cr, 2.5, 0.0); + + cairo_move_to (cr, 8.0, 0.5); + cairo_rel_line_to (cr, 2.5, 0.0); + cairo_rel_line_to (cr, 0.0, 2.5); + + cairo_move_to (cr, 10.5, 8.0); + cairo_rel_line_to (cr, 0.0, 2.5); + cairo_rel_line_to (cr, -2.5, 0.0); + + cairo_move_to (cr, 3.0, 10.5); + cairo_rel_line_to (cr, -2.5, 0.0); + cairo_rel_line_to (cr, 0.0, -2.5); + + cairo_stroke (cr); + + /* Draw a closed-path rectangle */ + cairo_set_dash (cr, dash_butt, 4, 2.5); + cairo_rectangle (cr, 0.5, 12.5, 10.0, 10.0); + cairo_stroke (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* Paint background white, then draw in black. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + draw_dashes (cr); + + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + cairo_translate (cr, 0, height); + cairo_scale (cr, 1, -1); + draw_dashes (cr); + cairo_restore (cr); + + cairo_save (cr); + cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); + cairo_translate (cr, width, 0); + cairo_scale (cr, -1, 1); + draw_dashes (cr); + cairo_restore (cr); + + cairo_save (cr); + cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); + cairo_translate (cr, width, height); + cairo_scale (cr, -1, -1); + draw_dashes (cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (rectilinear_dash, + "Test dashed rectilinear stroke operations (covering only whole pixels)", + "stroke, dash", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/rectilinear-fill.c b/local/recipes/libs/cairo/source/test/rectilinear-fill.c new file mode 100644 index 0000000000..3678379ee7 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/rectilinear-fill.c @@ -0,0 +1,84 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 24 + +static void +draw_rectangles (cairo_t *cr) +{ + cairo_save (cr); + + /* test constructing single rectangles */ + cairo_rectangle (cr, 0, 0, SIZE/2, 2); + cairo_fill (cr); + + cairo_rectangle (cr, 0, 5, SIZE/2, -2); + cairo_fill (cr); + + cairo_rectangle (cr, SIZE/2, 6, -SIZE/2, 2); + cairo_fill (cr); + + cairo_rectangle (cr, SIZE/2, 11, -SIZE/2, -2); + cairo_fill (cr); + + /* test constructing multiple rectangles */ + cairo_translate (cr, 0, 12); + cairo_rectangle (cr, 0, 0, SIZE/2, 2); + cairo_rectangle (cr, 0, 5, SIZE/2, -2); + cairo_rectangle (cr, SIZE/2, 6, -SIZE/2, 2); + cairo_rectangle (cr, SIZE/2, 11, -SIZE/2, -2); + cairo_fill (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* Paint background white, then draw in black. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */ + + draw_rectangles (cr); + + /* and check using cw winding */ + cairo_translate (cr, SIZE, SIZE); + cairo_scale (cr, -1, 1); + + draw_rectangles (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (rectilinear_fill, + "Test rectilinear fill operations (covering only whole pixels)", + "fill, rectilinear", /* keywords */ + NULL, /* requirements */ + SIZE, 2 * SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/rectilinear-grid.c b/local/recipes/libs/cairo/source/test/rectilinear-grid.c new file mode 100644 index 0000000000..6d37c6b8a3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/rectilinear-grid.c @@ -0,0 +1,92 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2010 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +#define SIZE 52 +#define OFFSET 5 +#define DISTANCE 10.25 + +/* + This test checks that boxes not aligned to pixels are drawn + correctly. + + In particular the corners of the boxes are drawn incorrectly by + cairo-image in cairo 1.10.0, because overlapping boxes are passed to + a span converter which assumes disjoint boxes as input. + + This results in corners to be drawn with the wrong shade. +*/ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_line_width (cr, 4); + cairo_translate (cr, 2*OFFSET, 2*OFFSET); + + for (i = 0; i < 4; i++) { + double x = i * DISTANCE; + + cairo_move_to (cr, x, -OFFSET-0.75); + cairo_line_to (cr, x, SIZE-3*OFFSET-0.25); + + cairo_move_to (cr, -OFFSET-0.75, x); + cairo_line_to (cr, SIZE-3*OFFSET-0.25, x); + } + + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +aligned (cairo_t *cr, int width, int height) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + return draw (cr, width, height); +} + +CAIRO_TEST (rectilinear_grid, + "Test rectilinear rasterizer (covering partial pixels)", + "rectilinear", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) + +CAIRO_TEST (a1_rectilinear_grid, + "Test rectilinear rasterizer (covering whole pixels)", + "rectilinear", /* keywords */ + "target=raster", /* requirements */ + SIZE, SIZE, + NULL, aligned) diff --git a/local/recipes/libs/cairo/source/test/rectilinear-miter-limit.c b/local/recipes/libs/cairo/source/test/rectilinear-miter-limit.c new file mode 100644 index 0000000000..581d98bad4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/rectilinear-miter-limit.c @@ -0,0 +1,72 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 10 +#define PAD 2 +#define WIDTH (PAD + LINE_WIDTH + PAD) +#define HEIGHT (WIDTH) + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_translate (cr, PAD, PAD); + + /* Paint background white, then draw in black. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */ + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_width (cr, LINE_WIDTH); + + /* The default miter limit value of 10.0 guarantees that + * right-angle turns, (in fact, any angle greater than 11 + * degrees), gets a miter rather than a bevel join. The + * rectilinear stroke optimization was originally written in a + * buggy way that did not respect the miter limit, (that is, + * inappropriately drawing miter joins when the miter limit would + * turn them into bevels). So we draw here with a miter limit of + * 1.0 to force all miter joins into bevels. */ + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_set_miter_limit (cr, 1.0); + + cairo_move_to (cr, LINE_WIDTH / 2.0, LINE_WIDTH); + cairo_rel_line_to (cr, 0, - LINE_WIDTH / 2.0); + cairo_rel_line_to (cr, LINE_WIDTH / 2.0, 0); + + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (rectilinear_miter_limit, + "Test that the rectilinear stroke optimization doesn't break cairo_set_miter_limit", + "miter, stroke, stress", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/rectilinear-stroke.c b/local/recipes/libs/cairo/source/test/rectilinear-stroke.c new file mode 100644 index 0000000000..e05ff8c2e0 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/rectilinear-stroke.c @@ -0,0 +1,139 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define SIZE 25 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* Paint background white, then draw in black. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */ + + cairo_set_line_width (cr, 1.0); + cairo_translate (cr, 1, 1); + + /* Draw everything first with square caps. */ + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + + /* Draw horizontal and vertical segments, each in both + * directions. */ + cairo_move_to (cr, 4.5, 0.5); + cairo_rel_line_to (cr, 2.0, 0.0); + + cairo_move_to (cr, 10.5, 4.5); + cairo_rel_line_to (cr, 0.0, 2.0); + + cairo_move_to (cr, 6.5, 10.5); + cairo_rel_line_to (cr, -2.0, 0.0); + + cairo_move_to (cr, 0.5, 6.5); + cairo_rel_line_to (cr, 0.0, -2.0); + + /* Draw right angle turns in four directions. */ + cairo_move_to (cr, 0.5, 2.5); + cairo_rel_line_to (cr, 0.0, -2.0); + cairo_rel_line_to (cr, 2.0, 0.0); + + cairo_move_to (cr, 8.5, 0.5); + cairo_rel_line_to (cr, 2.0, 0.0); + cairo_rel_line_to (cr, 0.0, 2.0); + + cairo_move_to (cr, 10.5, 8.5); + cairo_rel_line_to (cr, 0.0, 2.0); + cairo_rel_line_to (cr, -2.0, 0.0); + + cairo_move_to (cr, 2.5, 10.5); + cairo_rel_line_to (cr, -2.0, 0.0); + cairo_rel_line_to (cr, 0.0, -2.0); + + /* Draw a closed-path rectangle */ + cairo_rectangle (cr, 0.5, 12.5, 10.0, 10.0); + + cairo_stroke (cr); + + cairo_translate (cr, 12, 0); + + /* Now draw the same results, but with butt caps. */ + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + + /* Draw horizontal and vertical segments, each in both + * directions. */ + cairo_move_to (cr, 4.0, 0.5); + cairo_rel_line_to (cr, 3.0, 0.0); + + cairo_move_to (cr, 10.5, 4.0); + cairo_rel_line_to (cr, 0.0, 3.0); + + cairo_move_to (cr, 7.0, 10.5); + cairo_rel_line_to (cr, -3.0, 0.0); + + cairo_move_to (cr, 0.5, 7.0); + cairo_rel_line_to (cr, 0.0, -3.0); + + /* Draw right angle turns in four directions. */ + cairo_move_to (cr, 0.5, 3.0); + cairo_rel_line_to (cr, 0.0, -2.5); + cairo_rel_line_to (cr, 2.5, 0.0); + + cairo_move_to (cr, 8.0, 0.5); + cairo_rel_line_to (cr, 2.5, 0.0); + cairo_rel_line_to (cr, 0.0, 2.5); + + cairo_move_to (cr, 10.5, 8.0); + cairo_rel_line_to (cr, 0.0, 2.5); + cairo_rel_line_to (cr, -2.5, 0.0); + + cairo_move_to (cr, 3.0, 10.5); + cairo_rel_line_to (cr, -2.5, 0.0); + cairo_rel_line_to (cr, 0.0, -2.5); + + /* Draw a closed-path rectangle */ + cairo_rectangle (cr, 0.5, 12.5, 10.0, 10.0); + + /* Draw a path that is rectilinear initially, but not completely */ + /* We draw this out of the target window. The bug that caused this + * addition was leaks if part of the path was rectilinear but not + * completely */ + cairo_move_to (cr, 3.0, 30.5); + cairo_rel_line_to (cr, -2.5, 0.0); + cairo_rel_line_to (cr, +2.5, +2.5); + + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (rectilinear_stroke, + "Test rectilinear stroke operations (covering only whole pixels)", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/reference/a1-bug.base.argb32.ref.png b/local/recipes/libs/cairo/source/test/reference/a1-bug.base.argb32.ref.png new file mode 100644 index 0000000000..4b08e06832 Binary files /dev/null and b/local/recipes/libs/cairo/source/test/reference/a1-bug.base.argb32.ref.png differ diff --git a/local/recipes/libs/cairo/source/test/reference/a1-bug.base.rgb24.ref.png b/local/recipes/libs/cairo/source/test/reference/a1-bug.base.rgb24.ref.png new file mode 100644 index 0000000000..4b08e06832 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files /dev/null and b/local/recipes/libs/cairo/source/test/reference/pdf-operators-text.xcb.ref.png differ diff --git a/local/recipes/libs/cairo/source/test/reference/pdf-operators-text.xlib.ref.png b/local/recipes/libs/cairo/source/test/reference/pdf-operators-text.xlib.ref.png new file mode 100644 index 0000000000..bbb8a446d8 Binary files /dev/null and b/local/recipes/libs/cairo/source/test/reference/pdf-operators-text.xlib.ref.png differ diff --git a/local/recipes/libs/cairo/source/test/reference/pdf-structure-group-ref.ref.txt b/local/recipes/libs/cairo/source/test/reference/pdf-structure-group-ref.ref.txt new file mode 100644 index 0000000000..8b1d97fef9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/reference/pdf-structure-group-ref.ref.txt @@ -0,0 +1,6 @@ +Document + H (block) + "Heading" + Sect + P (block) + "Para1Para2" diff --git a/local/recipes/libs/cairo/source/test/reference/pdf-structure-group.ref.txt b/local/recipes/libs/cairo/source/test/reference/pdf-structure-group.ref.txt new file mode 100644 index 0000000000..8b1d97fef9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/reference/pdf-structure-group.ref.txt @@ -0,0 +1,6 @@ +Document + H (block) + "Heading" + Sect + P (block) + "Para1Para2" diff --git a/local/recipes/libs/cairo/source/test/reference/pdf-structure-group2.ref.txt b/local/recipes/libs/cairo/source/test/reference/pdf-structure-group2.ref.txt new file mode 100644 index 0000000000..f15c0bc240 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/reference/pdf-structure-group2.ref.txt @@ -0,0 +1,4 @@ +H (block) + "Heading" +P (block) + "Para1" diff --git a/local/recipes/libs/cairo/source/test/reference/pdf-structure-group3.ref.txt b/local/recipes/libs/cairo/source/test/reference/pdf-structure-group3.ref.txt new file mode 100644 index 0000000000..9db4d26d2e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/reference/pdf-structure-group3.ref.txt @@ -0,0 +1,6 @@ +Document + H (block) + "Heading" + P (block) + "Para1" + "text" diff --git a/local/recipes/libs/cairo/source/test/reference/pdf-structure-multipage-group.ref.txt b/local/recipes/libs/cairo/source/test/reference/pdf-structure-multipage-group.ref.txt new file mode 100644 index 0000000000..61b470ccc4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/reference/pdf-structure-multipage-group.ref.txt @@ -0,0 +1,8 @@ +Document + H (block) + "Heading" + Sect + P (block) + "Para1Para2" + P (block) + "Para3" diff --git a/local/recipes/libs/cairo/source/test/reference/pdf-structure-multipage-group2.ref.txt b/local/recipes/libs/cairo/source/test/reference/pdf-structure-multipage-group2.ref.txt new file mode 100644 index 0000000000..0fbed52f1d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/reference/pdf-structure-multipage-group2.ref.txt @@ -0,0 +1,10 @@ +Document + H (block) + "Heading" + Sect + P (block) + "Para1Para2" + P (block) + "Para1Para2" + P (block) + "Para3" diff --git a/local/recipes/libs/cairo/source/test/reference/pdf-structure-multipage-simple-ref.ref.txt b/local/recipes/libs/cairo/source/test/reference/pdf-structure-multipage-simple-ref.ref.txt new file mode 100644 index 0000000000..5a22505c90 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/reference/pdf-structure-multipage-simple-ref.ref.txt @@ -0,0 +1,12 @@ +Document + H (block) + Link (inline) + Object 21 0 + "Heading1" + Link (inline) + Object 24 0 + "Heading2" + Sect + P (block) + "Para1" + "Para2" diff --git a/local/recipes/libs/cairo/source/test/reference/pdf-structure-multipage-simple.ref.txt b/local/recipes/libs/cairo/source/test/reference/pdf-structure-multipage-simple.ref.txt new file mode 100644 index 0000000000..4d535fbf8f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/reference/pdf-structure-multipage-simple.ref.txt @@ -0,0 +1,12 @@ +Document + H (block) + Link (inline) + Object 6 0 + "Heading1" + Link (inline) + Object 8 0 + "Heading2" + Sect + P (block) + "Para1" + "Para2" diff --git a/local/recipes/libs/cairo/source/test/reference/pdf-structure-repeated-group.ref.txt b/local/recipes/libs/cairo/source/test/reference/pdf-structure-repeated-group.ref.txt new file mode 100644 index 0000000000..5292f0127b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/reference/pdf-structure-repeated-group.ref.txt @@ -0,0 +1,9 @@ +Document + H (block) + "Heading" + Sect + P (block) + "Para1Para2" + P (block) + "Para1Para2" + "Para1Para2Text" diff --git a/local/recipes/libs/cairo/source/test/reference/pdf-structure-simple-ref.ref.txt b/local/recipes/libs/cairo/source/test/reference/pdf-structure-simple-ref.ref.txt new file mode 100644 index 0000000000..0b0541c0a3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/reference/pdf-structure-simple-ref.ref.txt @@ -0,0 +1,11 @@ +Document + H (block) + "Heading" + Sect + P (block) + "Para1Para2" + P (block) + "Para3" + Note (inline) + "Note" + "Para4" diff --git 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distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * the author not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. The author makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE AUTHOR. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static void +draw_symbol (cairo_t *cr) +{ + double dash[] = {6, 3}; + + cairo_rectangle (cr, -25, -25, 50, 50); + cairo_stroke (cr); + + cairo_move_to (cr, 0, -25); + cairo_curve_to (cr, 12.5, -12.5, 12.5, -12.5, 0, 0); + cairo_curve_to (cr, -12.5, 12.5, -12.5, 12.5, 0, 25); + cairo_curve_to (cr, 12.5, 12.5, 12.5, 12.5, 0, 0); + cairo_stroke (cr); + + cairo_save (cr); + cairo_set_dash (cr, dash, ARRAY_LENGTH (dash), 0.); + cairo_move_to (cr, 0, 0); + cairo_arc (cr, 0, 0, 12.5, 0, 3 * M_PI / 2); + cairo_close_path (cr); + cairo_stroke (cr); + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_save (cr); + cairo_translate (cr, 50, 50); + cairo_scale (cr, 1, 1); + draw_symbol (cr); + cairo_restore (cr); + + cairo_save (cr); + cairo_translate (cr, 150, 50); + cairo_scale (cr, -1, 1); + draw_symbol (cr); + cairo_restore (cr); + + cairo_save (cr); + cairo_translate (cr, 150, 150); + cairo_scale (cr, -1, -1); + draw_symbol (cr); + cairo_restore (cr); + + cairo_save (cr); + cairo_translate (cr, 50, 150); + cairo_scale (cr, 1, -1); + draw_symbol (cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (reflected_stroke, + "Exercises the stroker with a reflected ctm", + "stroke, transform", /* keywords */ + NULL, /* requirements */ + 200, 200, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/rel-path.c b/local/recipes/libs/cairo/source/test/rel-path.c new file mode 100644 index 0000000000..d1ef259200 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/rel-path.c @@ -0,0 +1,129 @@ +/* + * Copyright © 2005 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Keith Packard not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Keith Packard makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +#include "cairo-test.h" + +#define SIZE 10 + +static cairo_status_t +invalid_rel_move_to (cairo_surface_t *target) +{ + cairo_t *cr; + cairo_status_t status; + + cr = cairo_create (target); + cairo_rel_move_to (cr, SIZE, SIZE/2); + status = cairo_status (cr); + cairo_destroy (cr); + + return status; +} + +static cairo_status_t +invalid_rel_line_to (cairo_surface_t *target) +{ + cairo_t *cr; + cairo_status_t status; + + cr = cairo_create (target); + cairo_rel_line_to (cr, -SIZE, SIZE/2); + status = cairo_status (cr); + cairo_destroy (cr); + + return status; +} + +static cairo_status_t +invalid_rel_curve_to (cairo_surface_t *target) +{ + cairo_t *cr; + cairo_status_t status; + + cr = cairo_create (target); + cairo_rel_curve_to (cr, + SIZE/2, -SIZE/2, + SIZE*2/3, -SIZE/3, + SIZE/2, -SIZE); + status = cairo_status (cr); + cairo_destroy (cr); + + return status; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_status_t status; + cairo_test_status_t result; + + /* first test that a relative move without a current point fails... */ + status = invalid_rel_move_to (cairo_get_target (cr)); + if (status != CAIRO_STATUS_NO_CURRENT_POINT) { + result = cairo_test_status_from_status (ctx, status); + if (result == CAIRO_TEST_NO_MEMORY) + return result; + + cairo_test_log (ctx, "Error: invalid cairo_rel_move_to() did not raise NO_CURRENT_POINT\n"); + return result; + } + + status = invalid_rel_line_to (cairo_get_target (cr)); + if (status != CAIRO_STATUS_NO_CURRENT_POINT) { + result = cairo_test_status_from_status (ctx, status); + if (result == CAIRO_TEST_NO_MEMORY) + return result; + + cairo_test_log (ctx, "Error: invalid cairo_rel_line_to() did not raise NO_CURRENT_POINT\n"); + return result; + } + + status = invalid_rel_curve_to (cairo_get_target (cr)); + if (status != CAIRO_STATUS_NO_CURRENT_POINT) { + result = cairo_test_status_from_status (ctx, status); + if (result == CAIRO_TEST_NO_MEMORY) + return result; + + cairo_test_log (ctx, "Error: invalid cairo_rel_curve_to() did not raise NO_CURRENT_POINT\n"); + return result; + } + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_move_to (cr, 0, 0); + cairo_rel_move_to (cr, SIZE, SIZE/2); + cairo_rel_line_to (cr, -SIZE, SIZE/2); + cairo_rel_curve_to (cr, + SIZE/2, -SIZE/2, + SIZE*2/3, -SIZE/3, + SIZE/2, -SIZE); + + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (rel_path, + "Tests calls to various relative path functions", + "path", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/rgb24-ignore-alpha.c b/local/recipes/libs/cairo/source/test/rgb24-ignore-alpha.c new file mode 100644 index 0000000000..1c9d57e9eb --- /dev/null +++ b/local/recipes/libs/cairo/source/test/rgb24-ignore-alpha.c @@ -0,0 +1,60 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define WIDTH 2 +#define HEIGHT 2 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + /* Four green pixels with different "alpha" values, (but which + * should be entirely ignored). */ + uint32_t colors[4] = { + 0xff00ff00, 0x8800ff00, + 0x4400ff00, 0x0000ff00 + }; + + surface = cairo_image_surface_create_for_data ((unsigned char *) colors, + CAIRO_FORMAT_RGB24, 2, 2, 8); + + cairo_set_source_surface (cr, surface, 0, 0); + cairo_paint (cr); + + cairo_surface_finish (surface); /* colors will go out of scope */ + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (rgb24_ignore_alpha, + "Test that when using an RGB24 image as a source, there is no alpha channel", + "image, alpha", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/romedalen.jpg b/local/recipes/libs/cairo/source/test/romedalen.jpg new file mode 100644 index 0000000000..d655e3d891 Binary files /dev/null and b/local/recipes/libs/cairo/source/test/romedalen.jpg differ diff --git a/local/recipes/libs/cairo/source/test/romedalen.png b/local/recipes/libs/cairo/source/test/romedalen.png new file mode 100644 index 0000000000..0c41eb0cfd Binary files /dev/null and b/local/recipes/libs/cairo/source/test/romedalen.png differ diff --git a/local/recipes/libs/cairo/source/test/rotate-image-surface-paint.c b/local/recipes/libs/cairo/source/test/rotate-image-surface-paint.c new file mode 100644 index 0000000000..42fda6ec2a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/rotate-image-surface-paint.c @@ -0,0 +1,172 @@ +/* + * Copyright © 2005, 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define SIZE 20 +#define PAD 2 + +static cairo_pattern_t * +create_image_source (int size) +{ + cairo_surface_t *surface; + cairo_pattern_t *pattern; + cairo_t *cr; + + /* Create an image surface with my favorite four colors in each + * quadrant. */ + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, size, size); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_rectangle (cr, 0, 0, size / 2, size / 2); + cairo_fill (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_rectangle (cr, size / 2, 0, size - size / 2, size / 2); + cairo_fill (cr); + + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_rectangle (cr, 0, size / 2, size / 2, size - size / 2); + cairo_fill (cr); + + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_rectangle (cr, size / 2, size / 2, size - size / 2, size - size / 2); + cairo_fill (cr); + + pattern = cairo_pattern_create_for_surface (cairo_get_target (cr)); + cairo_destroy (cr); + + return pattern; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *source; + int surface_size = sqrt ((SIZE - 2*PAD)*(SIZE - 2*PAD)/2); + + /* Use a gray (neutral) background, so we can spot if the backend pads + * with any other colour. + */ + cairo_set_source_rgb (cr, .5, .5, .5); + cairo_paint (cr); + + cairo_translate(cr, SIZE/2, SIZE/2); + cairo_rotate (cr, M_PI / 4.0); + cairo_translate (cr, -surface_size/2, -surface_size/2); + + source = create_image_source (surface_size); + cairo_pattern_set_filter (source, CAIRO_FILTER_NEAREST); + cairo_set_source(cr, source); + cairo_pattern_destroy (source); + + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +clip_draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *source; + int surface_size = sqrt ((SIZE - 2*PAD)*(SIZE - 2*PAD)/2); + + /* Use a gray (neutral) background, so we can spot if the backend pads + * with any other colour. + */ + cairo_set_source_rgb (cr, .5, .5, .5); + cairo_paint (cr); + + cairo_rectangle (cr, 2*PAD, 2*PAD, SIZE-4*PAD, SIZE-4*PAD); + cairo_clip (cr); + + cairo_translate(cr, SIZE/2, SIZE/2); + cairo_rotate (cr, M_PI / 4.0); + cairo_translate (cr, -surface_size/2, -surface_size/2); + + source = create_image_source (surface_size); + cairo_pattern_set_filter (source, CAIRO_FILTER_NEAREST); + cairo_set_source(cr, source); + cairo_pattern_destroy (source); + + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_clip (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *source; + int surface_size = sqrt ((SIZE - 2*PAD)*(SIZE - 2*PAD)/2); + + /* Use a gray (neutral) background, so we can spot if the backend pads + * with any other colour. + */ + cairo_set_source_rgb (cr, .5, .5, .5); + cairo_paint (cr); + + cairo_translate(cr, SIZE/2, SIZE/2); + cairo_rotate (cr, M_PI / 4.0); + cairo_translate (cr, -surface_size/2, -surface_size/2); + + cairo_rectangle (cr, PAD, PAD, surface_size-2*PAD, surface_size-2*PAD); + cairo_clip (cr); + + source = create_image_source (surface_size); + cairo_pattern_set_filter (source, CAIRO_FILTER_NEAREST); + cairo_set_source(cr, source); + cairo_pattern_destroy (source); + + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (rotate_image_surface_paint, + "Test call sequence: image_surface_create; rotate; set_source_surface; paint" + "\nThis test is known to fail on the ps backend currently", + "image, transform, paint", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) + +CAIRO_TEST (clip_rotate_image_surface_paint, + "Test call sequence: image_surface_create; rotate; set_source_surface; paint" + "\nThis test is known to fail on the ps backend currently", + "image, transform, paint", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, clip_draw) +CAIRO_TEST (rotate_clip_image_surface_paint, + "Test call sequence: image_surface_create; rotate; set_source_surface; paint" + "\nThis test is known to fail on the ps backend currently", + "image, transform, paint", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw_clip) diff --git a/local/recipes/libs/cairo/source/test/rotate-stroke-box.c b/local/recipes/libs/cairo/source/test/rotate-stroke-box.c new file mode 100644 index 0000000000..862abc9333 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/rotate-stroke-box.c @@ -0,0 +1,49 @@ +/* + * Copyright © 2013 Adrian Johnson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" +#include + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_save (cr); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_restore (cr); + + cairo_rectangle (cr, 5, 5, 20, 20); + cairo_rotate (cr, M_PI/4); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (rotate_stroke_box, + "Ensure rectangle path optimization works when the stroking transform is non rectilinear", + "path", /* keywords */ + NULL, /* requirements */ + 30, 30, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/rotated-clip.c b/local/recipes/libs/cairo/source/test/rotated-clip.c new file mode 100644 index 0000000000..4ca4566d52 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/rotated-clip.c @@ -0,0 +1,110 @@ +/* + * Copyright © 2007 Adrian Johnson + * Copyright © 2009 Chris Wilson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + * Chris Wilson + */ + +#include "cairo-test.h" + +#define PAT_WIDTH 120 +#define PAT_HEIGHT 120 +#define SIZE (PAT_WIDTH*2) +#define PAD 2 +#define WIDTH (PAD + SIZE + PAD) +#define HEIGHT WIDTH + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_matrix_t m; + + /* make the output opaque */ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_translate (cr, PAD, PAD); + + cairo_matrix_init_scale (&m, 2, 1.5); + cairo_matrix_rotate (&m, 1); + cairo_matrix_translate (&m, -PAT_WIDTH/4.0, -PAT_WIDTH/2.0); + cairo_matrix_invert (&m); + cairo_set_matrix (cr, &m); + + cairo_rectangle (cr, 0, 0, PAT_WIDTH, PAT_HEIGHT); + cairo_clip (cr); + + cairo_set_source_rgba (cr, 1, 0, 1, 0.5); + cairo_rectangle (cr, PAT_WIDTH/6.0, PAT_HEIGHT/6.0, PAT_WIDTH/4.0, PAT_HEIGHT/4.0); + cairo_fill (cr); + + cairo_set_source_rgba (cr, 0, 1, 1, 0.5); + cairo_rectangle (cr, PAT_WIDTH/2.0, PAT_HEIGHT/2.0, PAT_WIDTH/4.0, PAT_HEIGHT/4.0); + cairo_fill (cr); + + cairo_set_line_width (cr, 1); + cairo_move_to (cr, PAT_WIDTH/6.0, 0); + cairo_line_to (cr, 0, 0); + cairo_line_to (cr, 0, PAT_HEIGHT/6.0); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_stroke (cr); + + cairo_move_to (cr, PAT_WIDTH/6.0, PAT_HEIGHT); + cairo_line_to (cr, 0, PAT_HEIGHT); + cairo_line_to (cr, 0, 5*PAT_HEIGHT/6.0); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_stroke (cr); + + cairo_move_to (cr, 5*PAT_WIDTH/6.0, 0); + cairo_line_to (cr, PAT_WIDTH, 0); + cairo_line_to (cr, PAT_WIDTH, PAT_HEIGHT/6.0); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_stroke (cr); + + cairo_move_to (cr, 5*PAT_WIDTH/6.0, PAT_HEIGHT); + cairo_line_to (cr, PAT_WIDTH, PAT_HEIGHT); + cairo_line_to (cr, PAT_WIDTH, 5*PAT_HEIGHT/6.0); + cairo_set_source_rgb (cr, 1, 1, 0); + cairo_stroke (cr); + + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_set_line_width (cr, PAT_WIDTH/10.0); + + cairo_move_to (cr, 0, PAT_HEIGHT/4.0); + cairo_line_to (cr, PAT_WIDTH, PAT_HEIGHT/4.0); + cairo_stroke (cr); + + cairo_move_to (cr, PAT_WIDTH/4.0, 0); + cairo_line_to (cr, PAT_WIDTH/4.0, PAT_WIDTH); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (rotated_clip, + "Test clipping with non identity pattern matrix", + "clip", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/round-join-bug-520.c b/local/recipes/libs/cairo/source/test/round-join-bug-520.c new file mode 100644 index 0000000000..be2b5aa0d2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/round-join-bug-520.c @@ -0,0 +1,109 @@ +/* + * Author: Christian Rohlfs, 2022 + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "cairo-test.h" + +#define WIDTH 100 +#define HEIGHT WIDTH + +static cairo_test_status_t +draw_round(cairo_t *cr, int width, int height) +{ + /* Fail condition: + 0 >= 2 * ( 1 - tolerance / (line_width / 2) )^2 - 1, + with the default tolerance of 0.1, `failing_line_width` is in + [0.117157287525381; 0.682842712474619] + range. + */ + + double failing_line_width = 0.3; + + cairo_set_tolerance(cr, 0.1); + cairo_scale(cr, width, height); + + cairo_set_source_rgb(cr, 1, 1, 1); + cairo_paint(cr); + + cairo_move_to(cr, 0.2, 0.2); + cairo_line_to(cr, 0.8, 0.2); + cairo_line_to(cr, 0.8, 0.8); + cairo_line_to(cr, 0.2, 0.8); + cairo_close_path(cr); + + cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND); + cairo_set_source_rgb(cr, 0, 0, 0); + cairo_set_line_width(cr, failing_line_width); + cairo_stroke(cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_bevel(cairo_t *cr, int width, int height) +{ + /* Fail condition: + arc_height < tolerance + For 90° join `arc_height` is equal to + line_width / 2 * (1 - sqrt(1/2)) + which is 0.1464466094067262 of a `line_width`. + */ + + double line_width = 0.3; + double failing_tolerance = 0.3 * line_width; + + cairo_set_tolerance(cr, width * failing_tolerance); + cairo_scale(cr, width, height); + + cairo_set_source_rgb(cr, 1, 1, 1); + cairo_paint(cr); + + cairo_move_to(cr, 0.2, 0.2); + cairo_line_to(cr, 0.8, 0.2); + cairo_line_to(cr, 0.8, 0.8); + cairo_line_to(cr, 0.2, 0.8); + cairo_close_path(cr); + + cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND); + cairo_set_source_rgb(cr, 0, 0, 0); + cairo_set_line_width(cr, line_width); + cairo_stroke(cr); + + return CAIRO_TEST_SUCCESS; +} + + +CAIRO_TEST (round_join_bug_520_round, + "Tests round joins within tolerance", + "stroke, cap, join", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_round) + +CAIRO_TEST (round_join_bug_520_bevel, + "Tests round joins omission when `arc_height < tolerance`", + "stroke, cap, join", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_bevel) + diff --git a/local/recipes/libs/cairo/source/test/rounded-rectangle-fill.c b/local/recipes/libs/cairo/source/test/rounded-rectangle-fill.c new file mode 100644 index 0000000000..d211cf626b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/rounded-rectangle-fill.c @@ -0,0 +1,65 @@ +/* + * Copyright © 2009 Chris Wilson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 80 + +/* A very simple test to exercise the scan rasterisers with constant regions. */ + +static void +rounded_rectangle (cairo_t *cr, int x, int y, int w, int h, int r) +{ + cairo_new_sub_path (cr); + cairo_arc (cr, x + r, y + r, r, M_PI, 3 * M_PI / 2); + cairo_arc (cr, x + w - r, y + r, r, 3 *M_PI / 2, 2 * M_PI); + cairo_arc (cr, x + w - r, y + h - r, r, 0, M_PI / 2); + cairo_arc (cr, x + r, y + h - r, r, M_PI / 2, M_PI); + cairo_close_path (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* Paint background white, then draw in black. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */ + + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + rounded_rectangle (cr, 5, 5, width-10, height-10, 15); + rounded_rectangle (cr, 15, 15, width-30, height-30, 5); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (rounded_rectangle_fill, + "Tests handling of rounded rectangles, the UI designers favourite", + "fill, rounded-rectangle", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/rounded-rectangle-stroke.c b/local/recipes/libs/cairo/source/test/rounded-rectangle-stroke.c new file mode 100644 index 0000000000..22bc515578 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/rounded-rectangle-stroke.c @@ -0,0 +1,64 @@ +/* + * Copyright © 2009 Chris Wilson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define SIZE 80 + +/* A very simple test to exercise the scan rasterisers with constant regions. */ + +static void +rounded_rectangle (cairo_t *cr, int x, int y, int w, int h, int r) +{ + cairo_new_sub_path (cr); + cairo_arc (cr, x + r, y + r, r, M_PI, 3 * M_PI / 2); + cairo_arc (cr, x + w - r, y + r, r, 3 *M_PI / 2, 2 * M_PI); + cairo_arc (cr, x + w - r, y + h - r, r, 0, M_PI / 2); + cairo_arc (cr, x + r, y + h - r, r, M_PI / 2, M_PI); + cairo_close_path (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* Paint background white, then draw in black. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */ + + cairo_set_line_width (cr, 10); + rounded_rectangle (cr, 10, 10, width-20, height-20, 10); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (rounded_rectangle_stroke, + "Tests handling of rounded rectangles, the UI designers favourite", + "stroke, rounded-rectangle", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/run-cairo-test-suite.sh b/local/recipes/libs/cairo/source/test/run-cairo-test-suite.sh new file mode 100755 index 0000000000..567d2b14be --- /dev/null +++ b/local/recipes/libs/cairo/source/test/run-cairo-test-suite.sh @@ -0,0 +1,18 @@ +#!/bin/bash + +set -m + +if `which gnome-screensaver-command`; then + gnome-screensaver-command -i -n "cairo-test-suite" -r "Cairo needs to read back from the screen in order to test rendering to xlib" & + pid=$! + + restore_screensaver() { kill $pid; } +else + restore_screensaver() { :; } +fi + +trap cleanup SIGINT SIGTERM + +./cairo-test-suite "$*" + +restore_screensaver diff --git a/local/recipes/libs/cairo/source/test/sample.c b/local/recipes/libs/cairo/source/test/sample.c new file mode 100644 index 0000000000..caf68777e7 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/sample.c @@ -0,0 +1,117 @@ +/* + * Copyright 2012 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* Test the fidelity of the rasterisation, because Cairo is my favourite + * driver test suite. + */ + +#define GENERATE_REFERENCE 0 + +#define WIDTH 256 +#define HEIGHT 40 + +#include "../src/cairo-fixed-type-private.h" +#define PRECISION (1 << CAIRO_FIXED_FRAC_BITS) + +static cairo_test_status_t +vertical (cairo_t *cr, int width, int height) +{ + int x; + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + cairo_set_source_rgba (cr, 1, 1, 1, 1); + for (x = -HEIGHT*PRECISION-2; x <= (WIDTH+HEIGHT)*PRECISION+2; x += 4) { + cairo_move_to (cr, x / (double)PRECISION - 2, -2); + cairo_rel_line_to (cr, 0, HEIGHT + 4); + } + cairo_set_line_width (cr, 2 / (double)PRECISION); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +horizontal (cairo_t *cr, int width, int height) +{ + int x; + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + cairo_set_source_rgba (cr, 1, 1, 1, 1); + for (x = -HEIGHT*PRECISION-2; x <= (WIDTH+HEIGHT)*PRECISION+2; x += 4) { + cairo_move_to (cr, -2, x / (double)PRECISION - 2); + cairo_rel_line_to (cr, HEIGHT + 4, 0); + } + cairo_set_line_width (cr, 2 / (double)PRECISION); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +diagonal (cairo_t *cr, int width, int height) +{ + int x; + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + cairo_set_source_rgba (cr, 1, 1, 1, 1); + for (x = -HEIGHT*PRECISION-2; x <= (WIDTH+HEIGHT)*PRECISION+2; x += 6) { + cairo_move_to (cr, x / (double)PRECISION - 2, -2); + cairo_rel_line_to (cr, HEIGHT + 4, HEIGHT + 4); + } + cairo_set_line_width (cr, 2 / (double)PRECISION); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (sample_vertical, + "Check the fidelity of the rasterisation.", + NULL, /* keywords */ + "target=raster slow", /* requirements */ + WIDTH, HEIGHT, + NULL, vertical) + +CAIRO_TEST (sample_horizontal, + "Check the fidelity of the rasterisation.", + NULL, /* keywords */ + "target=raster slow", /* requirements */ + WIDTH, HEIGHT, + NULL, horizontal) + +CAIRO_TEST (sample_diagonal, + "Check the fidelity of the rasterisation.", + NULL, /* keywords */ + "target=raster slow", /* requirements */ + WIDTH, HEIGHT, + NULL, diagonal) diff --git a/local/recipes/libs/cairo/source/test/scale-down-source-surface-paint.c b/local/recipes/libs/cairo/source/test/scale-down-source-surface-paint.c new file mode 100644 index 0000000000..8cf0e06f2c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/scale-down-source-surface-paint.c @@ -0,0 +1,65 @@ +/* + * Copyright © 2005,2007 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + uint32_t data[16] = { + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff, + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff + }; + + /* First paint opaque background (black) so we don't need separate + * ARGB32 and RGB24 reference images. */ + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + cairo_paint (cr); + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_scale (cr, 0.5, 0.5); + + cairo_set_source_surface (cr, surface, 4, 4); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint (cr); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (scale_down_source_surface_paint, + "Test call sequence: cairo_scale; cairo_set_source_surface; cairo_paint, with a scale < 1.0", + "paint, transform", /* keywords */ + NULL, /* requirements */ + 6, 6, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/scale-offset-image.c b/local/recipes/libs/cairo/source/test/scale-offset-image.c new file mode 100644 index 0000000000..9b4ba3f733 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/scale-offset-image.c @@ -0,0 +1,143 @@ +/* + * Copyright 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +/* + * Test case derived from the bug report by Michel Iwaniec: + * https://lists.cairographics.org/archives/cairo/2008-November/015660.html + */ + +#include "cairo-test.h" + +static cairo_surface_t * +create_source (cairo_surface_t *target, int width, int height) +{ + cairo_surface_t *similar; + cairo_t *cr; + + similar = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + width, height); + cr = cairo_create (similar); + cairo_surface_destroy (similar); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_rectangle (cr, + width - 4, height - 4, + 2, 2); + cairo_fill (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_rectangle (cr, + width - 2, height - 4, + 2, 2); + cairo_fill (cr); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_rectangle (cr, + width - 4, height - 2, + 2, 2); + cairo_fill (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_rectangle (cr, + width - 2, height - 2, + 2, 2); + cairo_fill (cr); + + similar = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return similar; +} + +static void +draw_grid (cairo_t *cr, cairo_pattern_t *pattern, int dst_x, int dst_y) +{ + cairo_matrix_t m; + + cairo_save (cr); + cairo_translate (cr, dst_x, dst_y); + cairo_scale (cr, 16, 16); + cairo_rotate (cr, 1); + + cairo_matrix_init_translate (&m, 2560-4, 1280-4); + cairo_pattern_set_matrix (pattern, &m); + cairo_set_source (cr, pattern); + cairo_rectangle (cr, 0, 0, 4, 4); + cairo_fill (cr); + + cairo_set_source_rgb (cr, .7, .7, .7); + cairo_set_line_width (cr, 1./16); + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, 4, 0); + cairo_move_to (cr, 0, 2); + cairo_line_to (cr, 4, 2); + cairo_move_to (cr, 0, 4); + cairo_line_to (cr, 4, 4); + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, 0, 4); + cairo_move_to (cr, 2, 0); + cairo_line_to (cr, 2, 4); + cairo_move_to (cr, 4, 0); + cairo_line_to (cr, 4, 4); + cairo_stroke (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *source; + cairo_pattern_t *pattern; + + cairo_paint (cr); + + source = create_source (cairo_get_target (cr), 2560, 1280); + pattern = cairo_pattern_create_for_surface (source); + cairo_surface_destroy (source); + + cairo_pattern_set_filter (pattern, CAIRO_FILTER_NEAREST); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_NONE); + + draw_grid (cr, pattern, 50, 0); + draw_grid (cr, pattern, 130, 0); + draw_grid (cr, pattern, 210, 0); + draw_grid (cr, pattern, 290, 0); + + draw_grid (cr, pattern, 50, 230); + draw_grid (cr, pattern, 130, 230); + draw_grid (cr, pattern, 210, 230); + draw_grid (cr, pattern, 290, 230); + + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +/* XFAIL: loss of precision converting a cairo matrix to */ +CAIRO_TEST (scale_offset_image, + "Tests drawing surfaces under various scales and transforms", + "surface, scale-offset", /* keywords */ + NULL, /* requirements */ + 320, 320, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/scale-offset-similar.c b/local/recipes/libs/cairo/source/test/scale-offset-similar.c new file mode 100644 index 0000000000..32a083c496 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/scale-offset-similar.c @@ -0,0 +1,143 @@ +/* + * Copyright 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +/* + * Test case derived from the bug report by Michel Iwaniec: + * https://lists.cairographics.org/archives/cairo/2008-November/015660.html + */ + +#include "cairo-test.h" + +static cairo_surface_t * +create_source (cairo_surface_t *target, int width, int height) +{ + cairo_surface_t *similar; + cairo_t *cr; + + similar = cairo_surface_create_similar (target, + CAIRO_CONTENT_COLOR, + width, height); + cr = cairo_create (similar); + cairo_surface_destroy (similar); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_rectangle (cr, + width - 4, height - 4, + 2, 2); + cairo_fill (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_rectangle (cr, + width - 2, height - 4, + 2, 2); + cairo_fill (cr); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_rectangle (cr, + width - 4, height - 2, + 2, 2); + cairo_fill (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_rectangle (cr, + width - 2, height - 2, + 2, 2); + cairo_fill (cr); + + similar = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return similar; +} + +static void +draw_grid (cairo_t *cr, cairo_pattern_t *pattern, int dst_x, int dst_y) +{ + cairo_matrix_t m; + + cairo_save (cr); + cairo_translate (cr, dst_x, dst_y); + cairo_scale (cr, 16, 16); + cairo_rotate (cr, 1); + + cairo_matrix_init_translate (&m, 2560-4, 1280-4); + cairo_pattern_set_matrix (pattern, &m); + cairo_set_source (cr, pattern); + cairo_rectangle (cr, 0, 0, 4, 4); + cairo_fill (cr); + + cairo_set_source_rgb (cr, .7, .7, .7); + cairo_set_line_width (cr, 1./16); + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, 4, 0); + cairo_move_to (cr, 0, 2); + cairo_line_to (cr, 4, 2); + cairo_move_to (cr, 0, 4); + cairo_line_to (cr, 4, 4); + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, 0, 4); + cairo_move_to (cr, 2, 0); + cairo_line_to (cr, 2, 4); + cairo_move_to (cr, 4, 0); + cairo_line_to (cr, 4, 4); + cairo_stroke (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *source; + cairo_pattern_t *pattern; + + cairo_paint (cr); + + source = create_source (cairo_get_target (cr), 2560, 1280); + pattern = cairo_pattern_create_for_surface (source); + cairo_surface_destroy (source); + + cairo_pattern_set_filter (pattern, CAIRO_FILTER_NEAREST); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_NONE); + + draw_grid (cr, pattern, 50, 0); + draw_grid (cr, pattern, 130, 0); + draw_grid (cr, pattern, 210, 0); + draw_grid (cr, pattern, 290, 0); + + draw_grid (cr, pattern, 50, 230); + draw_grid (cr, pattern, 130, 230); + draw_grid (cr, pattern, 210, 230); + draw_grid (cr, pattern, 290, 230); + + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (scale_offset_similar, + "Tests drawing surfaces under various scales and transforms", + "surface, scale-offset", /* keywords */ + NULL, /* requirements */ + 320, 320, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/scale-source-surface-paint.c b/local/recipes/libs/cairo/source/test/scale-source-surface-paint.c new file mode 100644 index 0000000000..0c0a3acd86 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/scale-source-surface-paint.c @@ -0,0 +1,60 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + uint32_t data[16] = { + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff, + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff + }; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_scale (cr, 2, 2); + + cairo_set_source_surface (cr, surface, 1 , 1); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_paint (cr); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (scale_source_surface_paint, + "Test call sequence: cairo_scale; cairo_set_source_surface; cairo_paint", + "paint, transform", /* keywords */ + NULL, /* requirements */ + 12, 12, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/scaled-font-zero-matrix.c b/local/recipes/libs/cairo/source/test/scaled-font-zero-matrix.c new file mode 100644 index 0000000000..d4f79a6695 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/scaled-font-zero-matrix.c @@ -0,0 +1,63 @@ +/* + * Copyright © 2008 Mozilla Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Mozilla Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Mozilla Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Jeff Muizelaar + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_font_face_t *font_face; + cairo_font_options_t *font_options; + cairo_scaled_font_t *scaled_font; + cairo_matrix_t identity; + cairo_matrix_t zero; + + cairo_matrix_init_identity(&identity); + + zero = identity; + cairo_matrix_scale(&zero, 0, 0); + + font_face = cairo_get_font_face (cr); + font_options = cairo_font_options_create (); + cairo_get_font_options (cr, font_options); + scaled_font = cairo_scaled_font_create (font_face, + &identity, + &zero, + font_options); + cairo_set_scaled_font (cr, scaled_font); + cairo_show_text (cr, "Hello"); + cairo_scaled_font_destroy (scaled_font); + cairo_font_options_destroy (font_options); + + return cairo_test_status_from_status (cairo_test_get_context (cr), + cairo_status(cr)); +} + +CAIRO_TEST (scaled_font_zero_matrix, + "Test that scaled fonts with a degenerate matrix work", + "zero, matrix, degenerate, scaled-font", /* keywords */ + NULL, /* requirements */ + 0, 0, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/scarab.jpg b/local/recipes/libs/cairo/source/test/scarab.jpg new file mode 100644 index 0000000000..6a66ff7897 Binary files /dev/null and b/local/recipes/libs/cairo/source/test/scarab.jpg differ diff --git a/local/recipes/libs/cairo/source/test/select-font-face.c b/local/recipes/libs/cairo/source/test/select-font-face.c new file mode 100644 index 0000000000..ec4b27cf3e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/select-font-face.c @@ -0,0 +1,65 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define TEXT_SIZE 12 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* We draw in the default black, so paint white first. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + + cairo_set_font_size (cr, TEXT_SIZE); + cairo_move_to (cr, 0, TEXT_SIZE); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Serif", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, "i-am-serif"); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, " i-am-sans"); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans Mono", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_show_text (cr, " i-am-mono"); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (select_font_face, + "Tests using cairo_select_font_face to draw text in different faces", + "font", /* keywords */ + NULL, /* requirements */ + 192, TEXT_SIZE + 4, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/select-font-no-show-text.c b/local/recipes/libs/cairo/source/test/select-font-no-show-text.c new file mode 100644 index 0000000000..b2b47966fc --- /dev/null +++ b/local/recipes/libs/cairo/source/test/select-font-no-show-text.c @@ -0,0 +1,59 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl Worth + */ + +/* Bug history + * + * 2005-04-12 Carl Worth + * + * I noticed that if we call cairo_select_font_face, but then do a + * cairo_destroy before ever drawing any text, then we get: + * + * *** glibc detected *** double free or corruption (fasttop): 0x083274d0 *** + * Aborted + * + * 2005-04-14 Owen Taylor + * + * Fixed... just a stray free(). + */ + +#include "cairo-test.h" +#include + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_BOLD); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (select_font_no_show_text, + "Test calling cairo_select_font_face but never drawing text.", + "font", /* keywords */ + NULL, /* requirements */ + 0, 0, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/self-copy-overlap.c b/local/recipes/libs/cairo/source/test/self-copy-overlap.c new file mode 100644 index 0000000000..6e3b39c912 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/self-copy-overlap.c @@ -0,0 +1,54 @@ +/* + * Copyright 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +/* Question: are patterns mutable? The answer depends on who you ask... */ + +#include "cairo-test.h" + +/* This test is only interesting if the target has alpha */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgba (cr, 0, 0, 0, .01); + cairo_paint (cr); + + cairo_set_source_surface (cr, cairo_get_target (cr), 1, 1); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +/* + * XFAIL: vector surfaces take snapshot of patterns in contrast to the raster + * backends which don't. One solution would be to clone overlapping areas of + * dst/source, so patterns were effectively snapshotted across all backends. + */ +CAIRO_TEST (self_copy_overlap, + "Tests painting to itself using itself as the source" + "\nBackends treat this case inconsistently---vector backends are creating snapshots.", + "self-copy", /* keywords */ + NULL, /* requirements */ + 200, 200, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/self-copy.c b/local/recipes/libs/cairo/source/test/self-copy.c new file mode 100644 index 0000000000..bef02e98ba --- /dev/null +++ b/local/recipes/libs/cairo/source/test/self-copy.c @@ -0,0 +1,84 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Owen Taylor + */ + +#include "cairo-test.h" +#include +#include + +#define SIZE 40 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + cairo_matrix_t matrix; + + /* Paint a diagonal division as a test image */ + cairo_set_source_rgb (cr, 1, 1, 1); /* White */ + cairo_paint (cr); + + cairo_move_to (cr, SIZE, 0); + cairo_line_to (cr, SIZE, SIZE); + cairo_line_to (cr, 0, SIZE); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_fill (cr); + + /* Create a pattern with the target surface as the source, + * offset by SIZE/2 + */ + pattern = cairo_pattern_create_for_surface (cairo_get_group_target (cr)); + + cairo_matrix_init_translate (&matrix, - SIZE / 2, - SIZE / 2); + cairo_pattern_set_matrix (pattern, &matrix); + + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + /* Copy two rectangles from the upper-left quarter of the image to + * the lower right. It will work if we use cairo_fill(), but the + * cairo_clip() cairo_paint() combination fails because the clip + * on the surface as a destination affects it as the source as + * well. + */ + cairo_rectangle (cr, + 2 * SIZE / 4, 2 * SIZE / 4, + SIZE / 4, SIZE / 4); + cairo_rectangle (cr, + 3 * SIZE / 4, 3 * SIZE / 4, + SIZE / 4, SIZE / 4); + cairo_clip (cr); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; + +} + +CAIRO_TEST (self_copy, + "Test copying from a surface to itself with a clip", + "paint", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/self-intersecting.c b/local/recipes/libs/cairo/source/test/self-intersecting.c new file mode 100644 index 0000000000..8053235ace --- /dev/null +++ b/local/recipes/libs/cairo/source/test/self-intersecting.c @@ -0,0 +1,87 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +/* Bug history + * + * 2005-06-01 Carl Worth + * + * There's a long-standing bug in that self-intersecting paths give + * an incorrect result when stroked. The problem is that the + * trapezoids are generated incrementally along the stroke and as + * such, are not disjoint. The errant intersections of these + * trapezoids then leads to overfilled pixels. + * + * The test belows first creates and fills a path. Then it creates a + * second path which has a stroked boundary identical to the first + * filled path. But the results of the two operations are + * different. The most obvious difference is in the central region + * where the entire path intersects itself. But notice that every + * time the path turns there are also errors on the inside of the + * turn, (since the subsequent trapezoids along the path intersect). + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, 1.0, 1.0); + + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + + /* First draw the desired shape with a fill */ + cairo_rectangle (cr, 0.5, 0.5, 4.0, 4.0); + cairo_rectangle (cr, 3.5, 3.5, 4.0, 4.0); + cairo_rectangle (cr, 3.5, 1.5, -2.0, 2.0); + cairo_rectangle (cr, 6.5, 4.5, -2.0, 2.0); + + cairo_fill (cr); + + /* Then try the same thing with a stroke */ + cairo_translate (cr, 0, 10); + cairo_move_to (cr, 1.0, 1.0); + cairo_rel_line_to (cr, 3.0, 0.0); + cairo_rel_line_to (cr, 0.0, 6.0); + cairo_rel_line_to (cr, 3.0, 0.0); + cairo_rel_line_to (cr, 0.0, -3.0); + cairo_rel_line_to (cr, -6.0, 0.0); + cairo_close_path (cr); + + cairo_set_line_width (cr, 1.0); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (self_intersecting, + "Test strokes of self-intersecting paths" + "\nSelf-intersecting strokes are wrong due to incremental trapezoidization.", + "stroke, trap", /* keywords */ + NULL, /* requirements */ + 10, 20, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/set-source.c b/local/recipes/libs/cairo/source/test/set-source.c new file mode 100644 index 0000000000..7e54626a8b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/set-source.c @@ -0,0 +1,81 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + uint32_t color = 0x8019334c; + cairo_surface_t *surface; + cairo_pattern_t *pattern; + + surface = cairo_image_surface_create_for_data ((unsigned char *) &color, + CAIRO_FORMAT_ARGB32, 1, 1, 4); + pattern = cairo_pattern_create_for_surface (surface); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); + + /* Several different means of making mostly the same color (though + * we can't get anything but alpha==1.0 out of + * cairo_set_source_rgb. */ + for (i=0; i < width; i++) { + switch (i) { + case 0: + cairo_set_source_rgb (cr, .6, .7, .8); + break; + case 1: + cairo_set_source_rgba (cr, .2, .4, .6, 0.5); + break; + case 2: +#if WE_HAD_SUPPORT_FOR_PREMULTIPLIED + cairo_set_source_rgba_premultiplied (cr, .1, .2, .3, 0.5); +#else + cairo_set_source_rgba (cr, .2, .4, .6, 0.5); +#endif + break; + case 3: + default: + cairo_set_source (cr, pattern); + break; + } + + cairo_rectangle (cr, i, 0, 1, height); + cairo_fill (cr); + } + + cairo_pattern_destroy (pattern); + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (set_source, + "Tests calls to various set_source functions", + "api", /* keywords */ + NULL, /* requirements */ + 5, 5, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/shape-general-convex.c b/local/recipes/libs/cairo/source/test/shape-general-convex.c new file mode 100644 index 0000000000..b9241bb9fa --- /dev/null +++ b/local/recipes/libs/cairo/source/test/shape-general-convex.c @@ -0,0 +1,88 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +/* A general convex shape with a twist. */ + +#include "cairo-test.h" + +#define SIZE (100) +#define PAD 4 + +static void +limacon (cairo_t *cr, double a, double b, double radius) +{ + int i; + + cairo_save (cr); + cairo_translate (cr, PAD, 0); + for (i = 0; i < 360; i++) { + double theta = i * M_PI / 180; + double r = b + a * cos (theta); + double x = radius * r * cos (theta); + double y = radius * r * sin (theta); + cairo_line_to (cr, x, y); + } + cairo_close_path (cr); + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_save (cr); + cairo_translate (cr, 2*PAD, PAD); + + cairo_translate (cr, SIZE/2, SIZE/2); + limacon (cr, 1, .5, SIZE/3); /* trivia, this is a trisectrix */ + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill_preserve (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_stroke (cr); + + cairo_scale (cr, -1, 1); + + limacon (cr, 1, .5, SIZE/3); /* trivia, this is a trisectrix */ + + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_fill_preserve (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (shape_general_convex, + "A general shape that is not as convex as it first appears", + "fill,stroke", /* keywords */ + NULL, /* requirements */ + SIZE+4*PAD, SIZE+4*PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/shape-sierpinski.c b/local/recipes/libs/cairo/source/test/shape-sierpinski.c new file mode 100644 index 0000000000..9d2017067d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/shape-sierpinski.c @@ -0,0 +1,85 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +/* I thought I spied a bug... */ + +#include "cairo-test.h" + +#define WIDTH (1024) +#define HEIGHT (600) + +static const double m_1_sqrt_3 = 0.577359269; + +static void +T (cairo_t *cr, int size) +{ + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, size, 0); + cairo_line_to (cr, size/2, size*m_1_sqrt_3); + + size /= 2; + if (size >= 4) { + T (cr, size); + cairo_save (cr); { + cairo_translate (cr, size, 0); + T (cr, size); + } cairo_restore (cr); + cairo_save (cr); { + cairo_translate (cr, size/2, size*m_1_sqrt_3); + T (cr, size); + } cairo_restore (cr); + } +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, 0, 8); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_line_width (cr, 1.); + + T (cr, WIDTH); + + cairo_translate (cr, 0, 2*HEIGHT-16); + cairo_scale (cr, 1, -1); + + T (cr, WIDTH); + + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (shape_sierpinski, + "A fractal triangle", + "stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, 2*HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/shifted-operator.c b/local/recipes/libs/cairo/source/test/shifted-operator.c new file mode 100644 index 0000000000..70eb15b391 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/shifted-operator.c @@ -0,0 +1,58 @@ +/* + * Copyright © 2021 Anton Danilkin + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *recording_surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + cairo_t *cr2 = cairo_create (recording_surface); + cairo_translate (cr2, -30, -30); + cairo_rectangle (cr2, 0, 0, 120, 90); + cairo_set_source_rgba (cr2, 0.7, 0, 0, 0.8); + cairo_fill (cr2); + cairo_set_operator (cr2, CAIRO_OPERATOR_XOR); + cairo_rectangle (cr2, 40, 30, 120, 90); + cairo_set_source_rgba (cr2, 0, 0, 0.9, 0.4); + cairo_fill (cr2); + cairo_destroy (cr2); + + cairo_pattern_t *pattern = cairo_pattern_create_for_surface (recording_surface); + cairo_surface_destroy(recording_surface); + cairo_matrix_t matrix; + cairo_matrix_init_translate (&matrix, -30, -30); + cairo_pattern_set_matrix (pattern, &matrix); + cairo_set_source (cr, pattern); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (shifted_operator, + "Test drawing a rectangle shifted into negative coordinates with an operator", + "operator, transform, record", /* keywords */ + NULL, /* requirements */ + 160, 120, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/show-glyphs-advance.c b/local/recipes/libs/cairo/source/test/show-glyphs-advance.c new file mode 100644 index 0000000000..e5abc56c7d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/show-glyphs-advance.c @@ -0,0 +1,107 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2011 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + * Andrea Canciani + */ + +#include "cairo-test.h" + +static cairo_test_status_t +get_glyph (const cairo_test_context_t *ctx, + cairo_scaled_font_t *scaled_font, + const char *utf8, + cairo_glyph_t *glyph) +{ + cairo_glyph_t *text_to_glyphs; + cairo_status_t status; + int i; + + text_to_glyphs = glyph; + i = 1; + status = cairo_scaled_font_text_to_glyphs (scaled_font, + 0, 0, + utf8, -1, + &text_to_glyphs, &i, + NULL, NULL, + 0); + if (status != CAIRO_STATUS_SUCCESS) + return cairo_test_status_from_status (ctx, status); + + if (text_to_glyphs != glyph) { + *glyph = text_to_glyphs[0]; + cairo_glyph_free (text_to_glyphs); + } + + return CAIRO_TEST_SUCCESS; +} + +static const char *characters[] = { "A", "B", "C", "D" }; + +#define NUM_CHARS ARRAY_LENGTH (characters) + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_scaled_font_t *scaled_font; + cairo_glyph_t *glyphs = xmalloc (NUM_CHARS * sizeof (cairo_glyph_t)); + int i; + cairo_test_status_t status; + + /* Paint white background. */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + scaled_font = cairo_get_scaled_font (cr); + + for (i = 0; i < NUM_CHARS; i++) { + status = get_glyph (ctx, scaled_font, characters[i], &glyphs[i]); + if (status) + goto BAIL; + + glyphs[i].x = 10.0 + 10.0 * (i % 2); + glyphs[i].y = 20.0 + 10.0 * (i / 2); + } + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_show_glyphs (cr, glyphs, 4); + + cairo_translate (cr, 40., 20.); + cairo_rotate (cr, M_PI / 4.); + + cairo_show_glyphs (cr, glyphs, NUM_CHARS); + + BAIL: + free(glyphs); + + return status; +} + +CAIRO_TEST (show_glyphs_advance, + "Test that glyph advances work as expected along both axes", + "text, matrix", /* keywords */ + NULL, /* requirements */ + 64, 64, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/show-glyphs-many.c b/local/recipes/libs/cairo/source/test/show-glyphs-many.c new file mode 100644 index 0000000000..e16282cf52 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/show-glyphs-many.c @@ -0,0 +1,176 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#include + +/* Bug history + * + * 2006-01-07 Jon Hellan + * + * Jon opened the following bug report: + * + * _XError from XRenderCompositeText8 + * https://bugs.freedesktop.org/show_bug.cgi?id=5528 + * + * 2006-03-02 Carl Worth + * + * I wrote this test case to demonstrate the bug. + * + * Approach: + * + * Draw 65535 glyphs white-on-white all on top of each other. + * + * Rationale: + * + * The number 65535 comes from the original bug report. + * + * I would use cairo_show_text with a long string of 'x's say, + * but then the surface would need to be enormous to contain + * them. A smaller surface could be used, but I fear that at some + * point the off-surface glyph drawing would be optimized away + * and not exercise the bug. + * + * So, to keep the surface size under control, I use + * cairo_show_glyphs which allows me to place the glyphs all on + * top of each other. But, since cairo doesn't provide any + * character-to-glyphs mapping, I can't get a reliable glyph + * index (for character 'x' for example). So I just "guess" a + * glyph index and use white-on-white drawing to ignore the + * result. (I don't care what's drawn---I just want to ensure + * that things don't crash.) + * + * Status: I replicated bug. The largest value of NUM_GLYPHS for + * which I saw success is 21842. + * + * 2008-30-08 Chris Wilson + * This is also a valid test case for: + * + * Bug 5913 crash on overlong string + * https://bugs.freedesktop.org/show_bug.cgi?id=5913 + * + * which is still causing a crash in the Xlib backend - presumably, just + * a miscalculation of the length of the available request. + */ + +#define TEXT_SIZE 12 +#define NUM_GLYPHS 65535 + +static cairo_test_status_t +get_glyph (const cairo_test_context_t *ctx, + cairo_scaled_font_t *scaled_font, + const char *utf8, + cairo_glyph_t *glyph) +{ + cairo_glyph_t *text_to_glyphs; + cairo_status_t status; + int i; + + text_to_glyphs = glyph; + i = 1; + status = cairo_scaled_font_text_to_glyphs (scaled_font, + 0, 0, + utf8, -1, + &text_to_glyphs, &i, + NULL, NULL, + 0); + if (status != CAIRO_STATUS_SUCCESS) + return cairo_test_status_from_status (ctx, status); + + if (text_to_glyphs != glyph) { + *glyph = text_to_glyphs[0]; + cairo_glyph_free (text_to_glyphs); + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_glyph_t *glyphs = xmalloc (NUM_GLYPHS * sizeof (cairo_glyph_t)); + cairo_scaled_font_t *scaled_font; + const char *characters[] = { /* try to exercise different widths of index */ + "m", /* Latin letter m, index=0x50 */ + "μ", /* Greek letter mu, index=0x349 */ + NULL, + }, **utf8; + int i, j; + cairo_status_t status; + + /* Paint white background. */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + scaled_font = cairo_get_scaled_font (cr); + + for (utf8 = characters; *utf8 != NULL; utf8++) { + status = get_glyph (ctx, scaled_font, *utf8, &glyphs[0]); + if (status) + goto BAIL; + + if (glyphs[0].index) { + glyphs[0].x = 1.0; + glyphs[0].y = height - 1; + for (i=1; i < NUM_GLYPHS; i++) + glyphs[i] = glyphs[0]; + + cairo_show_glyphs (cr, glyphs, NUM_GLYPHS); + } + } + + /* we can pack ~21k 1-byte glyphs into a single XRenderCompositeGlyphs8 */ + status = get_glyph (ctx, scaled_font, "m", &glyphs[0]); + if (status) + goto BAIL; + for (i=1; i < 21500; i++) + glyphs[i] = glyphs[0]; + /* so check expanding the current 1-byte request for 2-byte glyphs */ + status = get_glyph (ctx, scaled_font, "μ", &glyphs[i]); + if (status) + goto BAIL; + for (j=i+1; j < NUM_GLYPHS; j++) + glyphs[j] = glyphs[i]; + + cairo_show_glyphs (cr, glyphs, NUM_GLYPHS); + + BAIL: + free(glyphs); + + return status; +} + +CAIRO_TEST (show_glyphs_many, + "Test that cairo_show_glyphs works when handed 'many' glyphs", + "text, stress", /* keywords */ + NULL, /* requirements */ + 9, 11, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/show-text-current-point.c b/local/recipes/libs/cairo/source/test/show-text-current-point.c new file mode 100644 index 0000000000..2fe32a82de --- /dev/null +++ b/local/recipes/libs/cairo/source/test/show-text-current-point.c @@ -0,0 +1,59 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define TEXT_SIZE 12 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + + cairo_move_to (cr, 0, TEXT_SIZE); + cairo_show_text (cr, "Hello from the "); + cairo_show_text (cr, "show-text-current-point"); + cairo_show_text (cr, " test."); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (show_text_current_point, + "Test that cairo_show_text adjusts the current point properly", + "text, api", /* keywords */ + NULL, /* requirements */ + 263, TEXT_SIZE + 4, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/simple.c b/local/recipes/libs/cairo/source/test/simple.c new file mode 100644 index 0000000000..7ec8a9ac53 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/simple.c @@ -0,0 +1,347 @@ +/* + * Copyright 2014 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +/* Test the fidelity of the rasterisation, because Cairo is my favourite + * driver test suite. + */ + +#define GENERATE_REFERENCE 0 + +#include "../src/cairo-fixed-type-private.h" + +#if GENERATE_REFERENCE +#include +struct coverage { + int width, height; + struct { + int uncovered_area; + int covered_height; + } cells[0]; +}; + +static int pfloor (int v) +{ + return v >> CAIRO_FIXED_FRAC_BITS; +} + +static int pfrac (int v) +{ + return v & ((1 << CAIRO_FIXED_FRAC_BITS) - 1); +} + +static void add_edge (struct coverage *coverage, + int x1, int y1, int x2, int y2, + int sign) +{ + int dx, dy; + int dxdy_quo, dxdy_rem; + int xq, xr; + int y, t; + + if (y2 < y1) { + t = y1; + y1 = y2; + y2 = t; + + t = x1; + x1 = x2; + x2 = t; + + sign = -sign; + } + + dx = x2 - x1; + dy = y2 - y1; + if (dy == 0) + return; + + dy *= 2; + + dxdy_quo = 2*dx / dy; + dxdy_rem = 2*dx % dy; + + xq = x1 + dxdy_quo / 2; + xr = dxdy_rem / 2; + if (xr < 0) { + xq--; + xr += dy; + } + + for (y = MAX(0, y1); y < MIN(y2, 256*coverage->height); y++) { + int x = xq + (xr >= dy/2); + + if (x < 256*coverage->width) { + int i = pfloor (y) * coverage->width; + if (x > 0) { + i += pfloor (x); + coverage->cells[i].uncovered_area += sign * pfrac(x); + } + coverage->cells[i].covered_height += sign; + } + + xq += dxdy_quo; + xr += dxdy_rem; + if (xr < 0) { + xq--; + xr += dy; + } else if (xr >= dy) { + xq++; + xr -= dy; + } + } +} + +static struct coverage * +coverage_create (int width, int height) +{ + int size; + struct coverage *c; + + size = sizeof (struct coverage); + size += width * height * sizeof (int) * 2; + + c = malloc (size); + if (c == NULL) + return c; + + memset(c, 0, size); + c->width = width; + c->height = height; + + return c; +} + +static cairo_surface_t * +coverage_to_alpha (struct coverage *c) +{ + cairo_surface_t *image; + uint8_t *data; + int x, y, stride; + + image = cairo_image_surface_create (CAIRO_FORMAT_A8, c->width, c->height); + + data = cairo_image_surface_get_data (image); + stride = cairo_image_surface_get_stride (image); + + cairo_surface_flush (image); + for (y = 0; y < c->height; y++) { + uint8_t *row = data + y *stride; + int cover = 0; + for (x = 0; x < c->width; x++) { + int v = y*c->width + x; + + cover += c->cells[v].covered_height * 256; + v = cover - c->cells[v].uncovered_area; + + v /= 256; + if (v < 0) + v = -v; + row[x] = v - (v >> 8); + } + } + cairo_surface_mark_dirty (image); + + free (c); + return image; +} +#endif + +static cairo_test_status_t +edge (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); + cairo_paint (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_ADD); + +#if GENERATE_REFERENCE + { + struct coverage *c; + cairo_surface_t *mask; + + cairo_set_source_rgb (cr, 1, 0, 0); + + c = coverage_create (width, height); + add_edge (c, 128*256, 129*256, 129*256, 1*256, 1); + add_edge (c, 128*256, 129*256, 128*256, 131*256, -1); + add_edge (c, 128*256, 131*256, 129*256, 259*256, -1); + add_edge (c, 130*256, 129*256, 129*256, 1*256, -1); + add_edge (c, 130*256, 129*256, 130*256, 131*256, 1); + add_edge (c, 130*256, 131*256, 129*256, 259*256, 1); + mask = coverage_to_alpha (c); + cairo_mask_surface (cr, mask, 0, 0); + cairo_surface_destroy (mask); + + c = coverage_create (width, height); + add_edge (c, 128*256/2, 129*256/2, 129*256/2, 1*256/2, 1); + add_edge (c, 128*256/2, 129*256/2, 128*256/2, 131*256/2, -1); + add_edge (c, 128*256/2, 131*256/2, 129*256/2, 259*256/2, -1); + add_edge (c, 130*256/2, 129*256/2, 129*256/2, 1*256/2, -1); + add_edge (c, 130*256/2, 129*256/2, 130*256/2, 131*256/2, 1); + add_edge (c, 130*256/2, 131*256/2, 129*256/2, 259*256/2, 1); + mask = coverage_to_alpha (c); + cairo_mask_surface (cr, mask, 0, 0); + cairo_surface_destroy (mask); + + c = coverage_create (width, height); + add_edge (c, (192-2)*256, 129*256, 192*256, 1*256, 1); + add_edge (c, (192-2)*256, 129*256, (192-2)*256, 131*256, -1); + add_edge (c, (192-2)*256, 131*256, 192*256, 259*256, -1); + add_edge (c, (192+2)*256, 129*256, 192*256, 1*256, -1); + add_edge (c, (192+2)*256, 129*256, (192+2)*256, 131*256, 1); + add_edge (c, (192+2)*256, 131*256, 192*256, 259*256, 1); + mask = coverage_to_alpha (c); + cairo_mask_surface (cr, mask, 0, 0); + cairo_surface_destroy (mask); + + c = coverage_create (width, height); + add_edge (c, (256-4)*256, 129*256, 256*256, 1*256, 1); + add_edge (c, (256-4)*256, 129*256, (256-4)*256, 131*256, -1); + add_edge (c, (256-4)*256, 131*256, 256*256, 259*256, -1); + add_edge (c, (256+4)*256, 129*256, 256*256, 1*256, -1); + add_edge (c, (256+4)*256, 129*256, (256+4)*256, 131*256, 1); + add_edge (c, (256+4)*256, 131*256, 256*256, 259*256, 1); + mask = coverage_to_alpha (c); + cairo_mask_surface (cr, mask, 0, 0); + cairo_surface_destroy (mask); + + cairo_set_source_rgb (cr, 0, 1, 0); + + c = coverage_create (width, height); + add_edge (c, 1*256, 129*256, 129*256, 128*256, 1); + add_edge (c, 131*256, 128*256, 259*256, 129*256, 1); + add_edge (c, 1*256, 129*256, 129*256, 130*256, -1); + add_edge (c, 131*256, 130*256, 259*256, 129*256, -1); + mask = coverage_to_alpha (c); + cairo_mask_surface (cr, mask, 0, 0); + cairo_surface_destroy (mask); + + c = coverage_create (width, height); + add_edge (c, 1*256/2, 129*256/2, 129*256/2, 128*256/2, 1); + add_edge (c, 131*256/2, 128*256/2, 259*256/2, 129*256/2, 1); + add_edge (c, 1*256/2, 129*256/2, 129*256/2, 130*256/2, -1); + add_edge (c, 131*256/2, 130*256/2, 259*256/2, 129*256/2, -1); + mask = coverage_to_alpha (c); + cairo_mask_surface (cr, mask, 0, 0); + cairo_surface_destroy (mask); + + c = coverage_create (width, height); + add_edge (c, 1*256, (192-0)*256, 129*256, (192-2)*256, 1); + add_edge (c, 131*256, (192-2)*256, 259*256, (192-0)*256, 1); + add_edge (c, 1*256, (192+0)*256, 129*256, (192+2)*256, -1); + add_edge (c, 131*256, (192+2)*256, 259*256, (192+0)*256, -1); + mask = coverage_to_alpha (c); + cairo_mask_surface (cr, mask, 0, 0); + cairo_surface_destroy (mask); + + c = coverage_create (width, height); + add_edge (c, 1*256, (256-0)*256, 129*256, (256-4)*256, 1); + add_edge (c, 131*256, (256-4)*256, 259*256, (256-0)*256, 1); + add_edge (c, 1*256, (256+0)*256, 129*256, (256+4)*256, -1); + add_edge (c, 131*256, (256+4)*256, 259*256, (256+0)*256, -1); + mask = coverage_to_alpha (c); + cairo_mask_surface (cr, mask, 0, 0); + cairo_surface_destroy (mask); + } +#else + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_move_to (cr, 129, 1); + cairo_line_to (cr, 128, 129); + cairo_line_to (cr, 128, 131); + cairo_line_to (cr, 129, 259); + cairo_line_to (cr, 130, 131); + cairo_line_to (cr, 130, 129); + cairo_fill (cr); + + cairo_move_to (cr, 129/2., 1/2.); + cairo_line_to (cr, 128/2., 129/2.); + cairo_line_to (cr, 128/2., 131/2.); + cairo_line_to (cr, 129/2., 259/2.); + cairo_line_to (cr, 130/2., 131/2.); + cairo_line_to (cr, 130/2., 129/2.); + cairo_fill (cr); + + cairo_move_to (cr, 192, 1); + cairo_line_to (cr, 192-2, 129); + cairo_line_to (cr, 192-2, 131); + cairo_line_to (cr, 192, 259); + cairo_line_to (cr, 192+2, 131); + cairo_line_to (cr, 192+2, 129); + cairo_fill (cr); + + cairo_move_to (cr, 256, 1); + cairo_line_to (cr, 256-4, 129); + cairo_line_to (cr, 256-4, 131); + cairo_line_to (cr, 256, 259); + cairo_line_to (cr, 256+4, 131); + cairo_line_to (cr, 256+4, 129); + cairo_fill (cr); + + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_move_to (cr, 1, 129); + cairo_line_to (cr, 129, 128); + cairo_line_to (cr, 131, 128); + cairo_line_to (cr, 259, 129); + cairo_line_to (cr, 131, 130); + cairo_line_to (cr, 129, 130); + cairo_fill (cr); + + cairo_move_to (cr, 1/2., 129/2.); + cairo_line_to (cr, 129/2., 128/2.); + cairo_line_to (cr, 131/2., 128/2.); + cairo_line_to (cr, 259/2., 129/2.); + cairo_line_to (cr, 131/2., 130/2.); + cairo_line_to (cr, 129/2., 130/2.); + cairo_fill (cr); + + cairo_move_to (cr, 1, 192); + cairo_line_to (cr, 129, 192-2); + cairo_line_to (cr, 131, 192-2); + cairo_line_to (cr, 259, 192); + cairo_line_to (cr, 131, 192+2); + cairo_line_to (cr, 129, 192+2); + cairo_fill (cr); + + cairo_move_to (cr, 1, 256); + cairo_line_to (cr, 129, 256-4); + cairo_line_to (cr, 131, 256-4); + cairo_line_to (cr, 259, 256); + cairo_line_to (cr, 131, 256+4); + cairo_line_to (cr, 129, 256+4); + cairo_fill (cr); +#endif + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (simple_edge, + "Check the fidelity of the rasterisation.", + NULL, /* keywords */ + "target=raster", /* requirements */ + 260, 260, + NULL, edge) diff --git a/local/recipes/libs/cairo/source/test/skew-extreme.c b/local/recipes/libs/cairo/source/test/skew-extreme.c new file mode 100644 index 0000000000..e0ee1c4c2d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/skew-extreme.c @@ -0,0 +1,118 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl Worth + */ + +#include "cairo-test.h" + +/* This test case is designed to exercise the following bug: + * + * Skew transforms were broken by the cairo update in December + * https://bugzilla.mozilla.org/show_bug.cgi?id=373632 + * + * What's happening is that the rectangle is being skewed into the + * following shape: + * + * a__b + * \ \ + * \ \ + * \ \ + * \ \ + * \ \ + * d\_\c + * + * and the bug is that _cairo_traps_tessellate_convex_quad is + * comparing b.x as less then d.x and therefore determining that the bc + * edge is left of the ad edge. The fix is simply to compare c.x to + * d.x instead of b.x to d.x . + */ + +#define PAD 2 +#define LINE_WIDTH 10 +#define LINE_LENGTH (2 * LINE_WIDTH) +#define SKEW_FACTOR 5.0 +#define WIDTH (PAD + (LINE_LENGTH * SKEW_FACTOR) + LINE_WIDTH + PAD) +#define HEIGHT (PAD + LINE_WIDTH + (LINE_LENGTH * SKEW_FACTOR) + LINE_WIDTH + PAD) + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_translate (cr, PAD, PAD); + + cairo_set_line_width (cr, LINE_WIDTH); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + + cairo_save (cr); + { + cairo_matrix_t skew_x = { + 1.0, 0.0, + SKEW_FACTOR, 1.0, + 0.0, 0.0 + }; + + cairo_translate (cr, LINE_WIDTH / 2.0, 0.0); + + cairo_transform (cr, &skew_x); + + cairo_move_to (cr, 0.0, 0.0); + cairo_line_to (cr, 0.0, LINE_LENGTH); + cairo_stroke (cr); + } + cairo_restore (cr); + + cairo_translate (cr, 0.0, LINE_WIDTH); + + cairo_save (cr); + { + cairo_matrix_t skew_y = { + 1.0, SKEW_FACTOR, + 0.0, 1.0, + 0.0, 0.0 + }; + + cairo_translate (cr, 0.0, LINE_WIDTH / 2.0); + + cairo_transform (cr, &skew_y); + + cairo_move_to (cr, 0.0, 0.0); + cairo_line_to (cr, LINE_LENGTH, 0.0); + cairo_stroke (cr); + } + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (skew_extreme, + "Test cases of extreme skew.", + "transform, stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/smask-fill.c b/local/recipes/libs/cairo/source/test/smask-fill.c new file mode 100644 index 0000000000..cb3861036d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/smask-fill.c @@ -0,0 +1,73 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *mask; + cairo_pattern_t *pattern; + cairo_t *cr2; + + cairo_set_source_rgb (cr, 0, 0, 1.0); + cairo_paint (cr); + + mask = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, + width, height); + cr2 = cairo_create (mask); + cairo_surface_destroy (mask); + + cairo_save (cr2); { + cairo_set_operator (cr2, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr2); + } cairo_restore (cr2); + + pattern = cairo_pattern_create_linear (0, 0, width, height); + cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.); + cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 1., 1., .5); + cairo_pattern_add_color_stop_rgba (pattern, 0.75, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 1.00, 0., 0., 0., 0.); + cairo_set_source (cr2, pattern); + cairo_pattern_destroy (pattern); + + cairo_arc (cr2, 0.5 * width, 0.5 * height, 0.45 * height, 0, 2 * M_PI); + cairo_fill (cr2); + + cairo_set_source_rgb (cr, 1.0, 0, 0); + cairo_mask_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (smask_fill, + "Test the support of \"soft\" masks with fills", + "smask, fill", /* keywords */ + NULL, /* requirements */ + 60, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/smask-image-mask.c b/local/recipes/libs/cairo/source/test/smask-image-mask.c new file mode 100644 index 0000000000..3d8b5d5a85 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/smask-image-mask.c @@ -0,0 +1,85 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + uint32_t data[] = { + 0xaa000000, 0x55000000, + 0x55000000, 0xaa000000, + }; + + cairo_surface_t *mask, *mask2; + cairo_pattern_t *pattern; + cairo_t *cr2; + + cairo_set_source_rgb (cr, 0, 0, 1.0); + cairo_paint (cr); + + mask = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, + width, height); + cr2 = cairo_create (mask); + cairo_surface_destroy (mask); + + cairo_save (cr2); { + cairo_set_operator (cr2, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr2); + } cairo_restore (cr2); + + pattern = cairo_pattern_create_linear (0, 0, width, height); + cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.); + cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 1., 1., .5); + cairo_pattern_add_color_stop_rgba (pattern, 0.75, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 1.00, 0., 0., 0., 0.); + cairo_set_source (cr2, pattern); + cairo_pattern_destroy (pattern); + + mask2 = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_ARGB32, 2, 2, 8); + pattern = cairo_pattern_create_for_surface (mask2); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); + cairo_mask (cr2, pattern); + cairo_pattern_destroy (pattern); + + cairo_set_source_rgb (cr, 1.0, 0, 0); + cairo_mask_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + cairo_surface_finish (mask2); /* data will go out of scope */ + cairo_surface_destroy (mask2); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (smask_image_mask, + "Test the support of \"soft\" masks with a secondary image mask", + "smask, image", /* keywords */ + NULL, /* requirements */ + 60, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/smask-mask.c b/local/recipes/libs/cairo/source/test/smask-mask.c new file mode 100644 index 0000000000..11cff82ff2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/smask-mask.c @@ -0,0 +1,96 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *mask; + cairo_pattern_t *pattern; + cairo_t *cr2, *cr3; + + cairo_set_source_rgb (cr, 0, 0, 1.0); + cairo_paint (cr); + + mask = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, + width, height); + cr2 = cairo_create (mask); + cairo_surface_destroy (mask); + + mask = cairo_surface_create_similar (cairo_get_group_target (cr2), + CAIRO_CONTENT_ALPHA, + width, height); + cr3 = cairo_create (mask); + cairo_surface_destroy (mask); + + cairo_save (cr3); { + cairo_set_operator (cr3, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr3); + } cairo_restore (cr3); + + pattern = cairo_pattern_create_linear (0, 0, width, height); + cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.); + cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 1., 1., .5); + cairo_pattern_add_color_stop_rgba (pattern, 0.75, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 1.00, 0., 0., 0., 0.); + cairo_set_source (cr3, pattern); + cairo_pattern_destroy (pattern); + cairo_paint (cr3); + + + cairo_save (cr2); { + cairo_set_operator (cr2, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr2); + } cairo_restore (cr2); + + pattern = cairo_pattern_create_radial ( + 0.5 * width, 0.5 * height, 0, + 0.5 * width, 0.5 * height, 0.5 *height); + cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.); + cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 1., 1., .5); + cairo_pattern_add_color_stop_rgba (pattern, 1.00, 1., 1., 1., 1.); + cairo_set_source (cr2, pattern); + cairo_pattern_destroy (pattern); + + cairo_mask_surface (cr2, cairo_get_target (cr3), 0, 0); + cairo_destroy (cr3); + + cairo_set_source_rgb (cr, 1.0, 0, 0); + cairo_mask_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (smask_mask, + "Test the support of \"soft\" masks with a secondary mask", + "smask, mask", /* keywords */ + NULL, /* requirements */ + 60, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/smask-paint.c b/local/recipes/libs/cairo/source/test/smask-paint.c new file mode 100644 index 0000000000..ee781caae1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/smask-paint.c @@ -0,0 +1,81 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *mask; + cairo_pattern_t *pattern; + cairo_t *cr2; + + mask = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, + width, height); + cr2 = cairo_create (mask); + cairo_surface_destroy (mask); + + cairo_save (cr2); { + cairo_set_operator (cr2, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr2); + } cairo_restore (cr2); + + pattern = cairo_pattern_create_linear (0, 0, width, height); + cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.); + cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 1., 1., .5); + cairo_pattern_add_color_stop_rgba (pattern, 0.75, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 1.00, 0., 0., 0., 0.); + cairo_set_source (cr2, pattern); + cairo_pattern_destroy (pattern); + + cairo_paint (cr2); + + cairo_set_source_rgb (cr, 0, 0, 1.0); + cairo_paint (cr); + + pattern = cairo_pattern_create_radial ( + 0.5 * width, 0.5 * height, 0, + 0.5 * width, 0.5 * height, 0.5 *height); + cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.); + cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 0., 0., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 0., 0., .5); + cairo_pattern_add_color_stop_rgba (pattern, 1.00, 1., 0., 0., 1.); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + cairo_mask_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (smask_paint, + "Test the support of \"soft\" masks with paints", + "smask, paint", /* keywords */ + NULL, /* requirements */ + 60, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/smask-stroke.c b/local/recipes/libs/cairo/source/test/smask-stroke.c new file mode 100644 index 0000000000..2a8e7e890e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/smask-stroke.c @@ -0,0 +1,73 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *mask; + cairo_pattern_t *pattern; + cairo_t *cr2; + + cairo_set_source_rgb (cr, 0, 0, 1.0); + cairo_paint (cr); + + mask = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, + width, height); + cr2 = cairo_create (mask); + cairo_surface_destroy (mask); + + cairo_save (cr2); { + cairo_set_operator (cr2, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr2); + } cairo_restore (cr2); + + pattern = cairo_pattern_create_linear (0, 0, width, height); + cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.); + cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 1., 1., .5); + cairo_pattern_add_color_stop_rgba (pattern, 0.75, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 1.00, 0., 0., 0., 0.); + cairo_set_source (cr2, pattern); + cairo_pattern_destroy (pattern); + + cairo_arc (cr2, 0.5 * width, 0.5 * height, 0.4 * height, 0, 2 * M_PI); + cairo_stroke (cr2); + + cairo_set_source_rgb (cr, 1.0, 0, 0); + cairo_mask_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (smask_stroke, + "Test the support of \"soft\" masks with strokes", + "smask, stroke", /* keywords */ + NULL, /* requirements */ + 60, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/smask-text.c b/local/recipes/libs/cairo/source/test/smask-text.c new file mode 100644 index 0000000000..f36ae26748 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/smask-text.c @@ -0,0 +1,83 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *mask; + cairo_pattern_t *pattern; + cairo_t *cr2; + cairo_text_extents_t extents; + + cairo_set_source_rgb (cr, 0, 0, 1.0); + cairo_paint (cr); + + mask = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, + width, height); + cr2 = cairo_create (mask); + cairo_surface_destroy (mask); + + cairo_save (cr2); { + cairo_set_operator (cr2, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr2); + } cairo_restore (cr2); + + pattern = cairo_pattern_create_linear (0, 0, width, height); + cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.); + cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 1., 1., .5); + cairo_pattern_add_color_stop_rgba (pattern, 0.75, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 1.00, 0., 0., 0., 0.); + cairo_set_source (cr2, pattern); + cairo_pattern_destroy (pattern); + + cairo_select_font_face (cr2, + CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr2, 0.5 * height); + + cairo_text_extents (cr2, "cairo", &extents); + cairo_move_to (cr2, + floor ((width - extents.width) / 2 + 0.5) - extents.x_bearing, + floor ((height - extents.height) / 2 - 0.5) - extents.y_bearing); + cairo_show_text (cr2, "cairo"); + + cairo_set_source_rgb (cr, 1.0, 0, 0); + cairo_mask_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (smask_text, + "Test the support of \"soft\" masks with text", + "smask, text", /* keywords */ + NULL, /* keywords */ + 120, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/smask.c b/local/recipes/libs/cairo/source/test/smask.c new file mode 100644 index 0000000000..4cf3adb2a9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/smask.c @@ -0,0 +1,123 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + uint32_t data[] = { + 0x80000000, 0x80000000, + 0x80000000, 0x80000000, + }; + + cairo_surface_t *mask, *mask2; + cairo_pattern_t *pattern; + cairo_t *cr2; + cairo_text_extents_t extents; + + mask = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, + width, height); + cr2 = cairo_create (mask); + cairo_surface_destroy (mask); + + cairo_save (cr2); { + cairo_set_operator (cr2, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr2); + } cairo_restore (cr2); + + pattern = cairo_pattern_create_linear (0, 0, 0, height); + cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.0); + cairo_pattern_add_color_stop_rgba (pattern, 0.80, 0., 0., 0., 0.0); + cairo_pattern_add_color_stop_rgba (pattern, 0.90, 1., 1., 1., 0.25); + cairo_pattern_add_color_stop_rgba (pattern, 1.00, 1., 1., 1., 1.0); + cairo_set_source (cr2, pattern); + cairo_pattern_destroy (pattern); + + cairo_paint (cr2); + + pattern = cairo_pattern_create_linear (0, 0, width, height); + cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.); + cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 1., 1., .5); + cairo_pattern_add_color_stop_rgba (pattern, 0.75, 1., 1., 1., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 1.00, 0., 0., 0., 0.); + cairo_set_source (cr2, pattern); + cairo_pattern_destroy (pattern); + + mask2 = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_ARGB32, 2, 2, 8); + pattern = cairo_pattern_create_for_surface (mask2); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); + cairo_mask (cr2, pattern); + cairo_pattern_destroy (pattern); + + cairo_arc (cr2, 0.5 * width, 0.5 * height - 10, 0.2 * height, 0, 2 * M_PI); + cairo_fill (cr2); + + cairo_arc (cr2, 0.5 * width, 0.5 * height - 10, 0.25 * height, 0, 2 * M_PI); + cairo_stroke (cr2); + + cairo_select_font_face (cr2, + CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr2, 0.3 * height); + + cairo_text_extents (cr2, "FG", &extents); + cairo_move_to (cr2, + floor ((width - extents.width) / 2 + 0.5) - extents.x_bearing, + floor (height - extents.height - 0.5) - extents.y_bearing - 5); + cairo_show_text (cr2, "FG"); + + cairo_set_source_rgb (cr, 0, 0, 1.0); + cairo_paint (cr); + + pattern = cairo_pattern_create_radial ( + 0.5 * width, 0.5 * height, 0, + 0.5 * width, 0.5 * height, 0.5 *height); + cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.); + cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 0., 0., 1.); + cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 0., 0., .5); + cairo_pattern_add_color_stop_rgba (pattern, 1.00, 1., 0., 0., 1.); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + cairo_mask_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + cairo_surface_finish (mask2); /* data will go out of scope */ + cairo_surface_destroy (mask2); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (smask, + "Test the support of \"soft\" masks", + "smask", /* keywords */ + NULL, /* requirements */ + 60, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/smp-glyph.c b/local/recipes/libs/cairo/source/test/smp-glyph.c new file mode 100644 index 0000000000..486c43ebb3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/smp-glyph.c @@ -0,0 +1,56 @@ +/* + * Copyright © 2017 Andrea Canciani + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Andrea Canciani not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Andrea Canciani makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * ANDREA CANCIANI DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL ANDREA CANCIANI BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +#define TEXT_SIZE 42 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + cairo_set_font_size (cr, TEXT_SIZE); + cairo_translate (cr, 0, TEXT_SIZE); + + /* U+1F030, DOMINO TILE HORIZONTAL BACK */ + cairo_show_text (cr, "\xf0\x9f\x80\xb0"); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (smp_glyph, + "Test glyphs for symbols in the Supplementary Multilingual Plane", + "text, glyphs", /* keywords */ + NULL, /* requirements */ + 64, 64, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/solid-pattern-cache-stress.c b/local/recipes/libs/cairo/source/test/solid-pattern-cache-stress.c new file mode 100644 index 0000000000..56972bfaf8 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/solid-pattern-cache-stress.c @@ -0,0 +1,210 @@ +/* + * Copyright © 2007 Chris Wilson. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson. Not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "config.h" + +#include "cairo-test.h" +#include /* drand48() */ + +#define LOOPS 10 +#define NRAND 100 + +#ifndef HAVE_DRAND48 +#define drand48() (rand () / (double) RAND_MAX) +#endif + +static cairo_scaled_font_t *scaled_font; + +static cairo_t * +_cairo_create_similar (cairo_t *cr, int width, int height) +{ + cairo_surface_t *similar; + + similar = cairo_surface_create_similar (cairo_get_target (cr), + cairo_surface_get_content (cairo_get_target (cr)), + width, height); + cr = cairo_create (similar); + cairo_surface_destroy (similar); + + return cr; +} + +static cairo_t * +_cairo_create_image (cairo_t *cr, cairo_format_t format, int width, int height) +{ + cairo_surface_t *image; + + image = cairo_image_surface_create (format, width, height); + cr = cairo_create (image); + cairo_surface_destroy (image); + + return cr; +} + +static void +_propagate_status (cairo_t *dst, cairo_t *src) +{ + cairo_path_t path; + + path.status = cairo_status (src); + if (path.status) { + path.num_data = 0; + path.data = NULL; + cairo_append_path (dst, &path); + } +} + +static void +_draw (cairo_t *cr, + double red, + double green, + double blue) +{ + cairo_text_extents_t extents; + + cairo_set_source_rgb (cr, red, green, blue); + cairo_paint (cr); + + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, 1, 1); + cairo_stroke (cr); + + cairo_mask (cr, cairo_get_source (cr)); + + cairo_set_scaled_font (cr, scaled_font); + cairo_text_extents (cr, "cairo", &extents); + cairo_move_to (cr, + -extents.x_bearing - .5 * extents.width, + -extents.y_bearing - .5 * extents.height); + cairo_show_text (cr, "cairo"); +} + +static void +use_similar (cairo_t *cr, + double red, + double green, + double blue) +{ + cairo_t *cr2; + + if (cairo_status (cr)) + return; + + cr2 = _cairo_create_similar (cr, 1, 1); + + _draw (cr2, red, green, blue); + + _propagate_status (cr, cr2); + cairo_destroy (cr2); +} + +static void +use_image (cairo_t *cr, + cairo_format_t format, + double red, + double green, + double blue) +{ + cairo_t *cr2; + + if (cairo_status (cr)) + return; + + cr2 = _cairo_create_image (cr, format, 1, 1); + + _draw (cr2, red, green, blue); + + _propagate_status (cr, cr2); + cairo_destroy (cr2); +} + +static void +use_solid (cairo_t *cr, + double red, + double green, + double blue) +{ + /* mix in dissimilar solids */ + use_image (cr, CAIRO_FORMAT_A1, red, green, blue); + use_image (cr, CAIRO_FORMAT_A8, red, green, blue); + use_image (cr, CAIRO_FORMAT_RGB24, red, green, blue); + use_image (cr, CAIRO_FORMAT_ARGB32, red, green, blue); + + use_similar (cr, red, green, blue); + + _draw (cr, red, green, blue); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_status_t status; + const double colors[8][3] = { + { 1.0, 0.0, 0.0 }, /* red */ + { 0.0, 1.0, 0.0 }, /* green */ + { 1.0, 1.0, 0.0 }, /* yellow */ + { 0.0, 0.0, 1.0 }, /* blue */ + { 1.0, 0.0, 1.0 }, /* magenta */ + { 0.0, 1.0, 1.0 }, /* cyan */ + { 1.0, 1.0, 1.0 }, /* white */ + { 0.0, 0.0, 0.0 }, /* black */ + }; + int i, j, loop; + + /* cache a resolved scaled-font */ + scaled_font = cairo_get_scaled_font (cr); + + for (loop = 0; loop < LOOPS; loop++) { + for (i = 0; i < LOOPS; i++) { + for (j = 0; j < 8; j++) { + use_solid (cr, colors[j][0], colors[j][1], colors[j][2]); + status = cairo_status (cr); + if (status) + return cairo_test_status_from_status (ctx, status); + } + } + + for (i = 0; i < NRAND; i++) { + use_solid (cr, drand48 (), drand48 (), drand48 ()); + status = cairo_status (cr); + if (status) + return cairo_test_status_from_status (ctx, status); + } + } + + /* stress test only, so clear the surface before comparing */ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (solid_pattern_cache_stress, + "Stress the solid pattern cache and ensure it behaves", + "stress", /* keywords */ + NULL, /* requirements */ + 1, 1, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/source-clip-scale.c b/local/recipes/libs/cairo/source/test/source-clip-scale.c new file mode 100644 index 0000000000..4eca2061cf --- /dev/null +++ b/local/recipes/libs/cairo/source/test/source-clip-scale.c @@ -0,0 +1,82 @@ +/* + * Copyright © 2005 Mozilla Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Mozilla Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Mozilla Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Vladimir Vukicevic + */ + +#include "cairo-test.h" +#include +#include + +#define SIZE 12 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *source; + cairo_t *cr2; + + source = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + SIZE, SIZE); + cr2 = cairo_create (source); + cairo_surface_destroy (source); + + /* Fill the source surface with green */ + cairo_set_source_rgb (cr2, 0, 1, 0); + cairo_paint (cr2); + + /* Draw a blue square in the middle of the source with clipping. + * Note that we are only clipping within a save/restore block but + * the buggy behavior demonstrates that the clip remains present + * on the surface. */ + cairo_save (cr2); + cairo_rectangle (cr2, + SIZE / 4, SIZE / 4, + SIZE / 2, SIZE / 2); + cairo_clip (cr2); + cairo_set_source_rgb (cr2, 0, 0, 1); + cairo_paint (cr2); + cairo_restore (cr2); + + /* Fill the destination surface with solid red (should not appear + * in final result) */ + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + /* Now draw the source surface onto the destination with scaling. */ + cairo_scale (cr, 2.0, 1.0); + + cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (source_clip_scale, + "Test that a source surface is not affected by a clip when scaling", + "clip", /* keywords */ + NULL, /* requirements */ + SIZE * 2, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/source-clip.c b/local/recipes/libs/cairo/source/test/source-clip.c new file mode 100644 index 0000000000..0c00070b1e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/source-clip.c @@ -0,0 +1,77 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Owen Taylor + */ + +#include "cairo-test.h" +#include +#include + +#define SIZE 12 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *source; + cairo_t *cr2; + + source = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + SIZE, SIZE); + + cr2 = cairo_create (source); + cairo_surface_destroy (source); + + /* Fill the source surface with green */ + cairo_set_source_rgb (cr2, 0, 1, 0); + cairo_paint (cr2); + + /* Draw a blue square in the middle of the source with clipping, + * and leave the clip there. */ + cairo_rectangle (cr2, + SIZE / 4, SIZE / 4, + SIZE / 2, SIZE / 2); + cairo_clip (cr2); + cairo_set_source_rgb (cr2, 0, 0, 1); + cairo_paint (cr2); + + /* Fill the destination surface with solid red (should not appear + * in final result) */ + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + /* Now draw the source surface onto the destination surface */ + cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_paint (cr); + + cairo_destroy (cr2); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (source_clip, + "Test that a source surface is not affected by a clip", + "clip", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/source-surface-scale-paint.c b/local/recipes/libs/cairo/source/test/source-surface-scale-paint.c new file mode 100644 index 0000000000..4ac62490aa --- /dev/null +++ b/local/recipes/libs/cairo/source/test/source-surface-scale-paint.c @@ -0,0 +1,59 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + uint32_t data[16] = { + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, + + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff, + 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff + }; + + surface = cairo_image_surface_create_for_data ((unsigned char *) data, + CAIRO_FORMAT_RGB24, 4, 4, 16); + + cairo_set_source_surface (cr, surface, 2, 2); + cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); + cairo_scale (cr, 2, 2); + cairo_paint (cr); + + cairo_surface_finish (surface); /* data will go out of scope */ + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (source_surface_scale_paint, + "Test call sequence: cairo_set_source_surface; cairo_scale; cairo_paint", + "transform, paint", /* keywords */ + NULL, /* requirements */ + 8, 8, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/spline-decomposition.c b/local/recipes/libs/cairo/source/test/spline-decomposition.c new file mode 100644 index 0000000000..ea8f26f23c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/spline-decomposition.c @@ -0,0 +1,471 @@ +/* + * Copyright 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +typedef struct _point { + double x,y; +} point_t; + +typedef struct _knots { + point_t a,b,c,d; +} knots_t; + +static knots_t knots[5] = { + { {0, 0}, {0, 100}, {100, 100}, {100, 0} }, + { {0, 0}, {75, 100}, {25, 100}, {100, 0} }, + { {0, 0}, {100, 100}, {0, 100}, {100, 0} }, + { {0, 0}, {150, 100}, {-50, 100}, {100, 0} }, + { {0, 0}, {100, 200}, {0, -100}, {100, 100} }, +}; + +#ifdef REFERENCE +static void +_lerp_half (const point_t *a, const point_t *b, point_t *result) +{ + result->x = .5 * (a->x + b->x); + result->y = .5 * (a->y + b->y); +} + +static void +_de_casteljau (knots_t *k1, knots_t *k2) +{ + point_t ab, bc, cd; + point_t abbc, bccd; + point_t final; + + _lerp_half (&k1->a, &k1->b, &ab); + _lerp_half (&k1->b, &k1->c, &bc); + _lerp_half (&k1->c, &k1->d, &cd); + _lerp_half (&ab, &bc, &abbc); + _lerp_half (&bc, &cd, &bccd); + _lerp_half (&abbc, &bccd, &final); + + k2->a = final; + k2->b = bccd; + k2->c = cd; + k2->d = k1->d; + + k1->b = ab; + k1->c = abbc; + k1->d = final; +} + +static double +_spline_error_squared (const knots_t *knots) +{ + double bdx, bdy, berr; + double cdx, cdy, cerr; + double dx, dy, v; + + /* Intersection point (px): + * px = p1 + u(p2 - p1) + * (p - px) ∙ (p2 - p1) = 0 + * Thus: + * u = ((p - p1) ∙ (p2 - p1)) / ∥p2 - p1∥²; + */ + bdx = knots->b.x - knots->a.x; + bdy = knots->b.y - knots->a.y; + + cdx = knots->c.x - knots->a.x; + cdy = knots->c.y - knots->a.y; + + dx = knots->d.x - knots->a.x; + dy = knots->d.y - knots->a.y; + v = dx * dx + dy * dy; + if (v != 0.) { + double u; + + u = bdx * dx + bdy * dy; + if (u <= 0) { + /* bdx -= 0; + * bdy -= 0; + */ + } else if (u >= v) { + bdx -= dx; + bdy -= dy; + } else { + bdx -= u/v * dx; + bdy -= u/v * dy; + } + + u = cdx * dx + cdy * dy; + if (u <= 0) { + /* cdx -= 0; + * cdy -= 0; + */ + } else if (u >= v) { + cdx -= dx; + cdy -= dy; + } else { + cdx -= u/v * dx; + cdy -= u/v * dy; + } + } + + berr = bdx * bdx + bdy * bdy; + cerr = cdx * cdx + cdy * cdy; + if (berr > cerr) + return berr * v; + else + return cerr * v; +} + +static void +_offset_line_to (cairo_t *cr, + const point_t *p0, + const point_t *p1, + const point_t *p2, + const point_t *p3, + double offset) +{ + double dx, dy, v; + + dx = p1->x - p0->x; + dy = p1->y - p0->y; + v = hypot (dx, dy); + if (v == 0) { + dx = p2->x - p0->x; + dy = p2->y - p0->y; + v = hypot (dx, dy); + if (v == 0) { + dx = p3->x - p0->x; + dy = p3->y - p0->y; + v = hypot (dx, dy); + } + } + + if (v == 0) { + cairo_line_to (cr, p0->x, p0->y); + } else + cairo_line_to (cr, p0->x - offset * dy / v, p0->y + offset * dx / v); +} + +static void +_spline_decompose_into (knots_t *k1, + double tolerance_squared, + double offset, + cairo_t *cr) +{ + knots_t k2; + + if (_spline_error_squared (k1) < tolerance_squared) { + _offset_line_to (cr, &k1->a, &k1->b, &k1->c, &k1->d, offset); + return; + } + + _de_casteljau (k1, &k2); + + _spline_decompose_into (k1, tolerance_squared, offset, cr); + _spline_decompose_into (&k2, tolerance_squared, offset, cr); +} + +static void +_spline_decompose (const knots_t *knots, + double tolerance, double offset, + cairo_t *cr) +{ + knots_t k; + + k = *knots; + _spline_decompose_into (&k, tolerance * tolerance, offset, cr); + + _offset_line_to (cr, &knots->d, &knots->c, &knots->b, &knots->a, -offset); +} + +static void +_knots_reverse (knots_t *knots) +{ + point_t tmp; + + tmp = knots->a; + knots->a = knots->d; + knots->d = tmp; + + tmp = knots->b; + knots->b = knots->c; + knots->c = tmp; +} + +static void +thick_splines (cairo_t *cr, double offset) +{ + knots_t k; + + cairo_save (cr); + cairo_translate (cr, 15, 15); + + k = knots[0]; + + cairo_new_path (cr); + _spline_decompose (&k, .1, offset, cr); + _knots_reverse (&k); + _spline_decompose (&k, .1, offset, cr); + cairo_close_path (cr); + cairo_fill (cr); + + cairo_translate (cr, 130, 0); + + k = knots[1]; + + cairo_new_path (cr); + _spline_decompose (&k, .1, offset, cr); + _knots_reverse (&k); + _spline_decompose (&k, .1, offset, cr); + cairo_close_path (cr); + cairo_fill (cr); + + cairo_translate (cr, 130, 0); + + k = knots[2]; + + cairo_new_path (cr); + _spline_decompose (&k, .1, offset, cr); + _knots_reverse (&k); + _spline_decompose (&k, .1, offset, cr); + cairo_close_path (cr); + cairo_fill (cr); + + cairo_translate (cr, -130 - 65, 130); + + k = knots[3]; + + cairo_new_path (cr); + _spline_decompose (&k, .1, offset, cr); + _knots_reverse (&k); + _spline_decompose (&k, .1, offset, cr); + cairo_close_path (cr); + cairo_fill (cr); + + cairo_translate (cr, 130, 0); + + k = knots[4]; + + cairo_new_path (cr); + _spline_decompose (&k, .1, offset, cr); + _knots_reverse (&k); + _spline_decompose (&k, .1, offset, cr); + cairo_close_path (cr); + cairo_fill (cr); + cairo_restore (cr); +} + +static void +thin_splines (cairo_t *cr) +{ + cairo_save (cr); + cairo_translate (cr, 15, 15); + + cairo_new_path (cr); + _spline_decompose (&knots[0], .1, 0, cr); + cairo_stroke (cr); + + cairo_translate (cr, 130, 0); + + cairo_new_path (cr); + _spline_decompose (&knots[1], .1, 0, cr); + cairo_stroke (cr); + + cairo_translate (cr, 130, 0); + + cairo_new_path (cr); + _spline_decompose (&knots[2], .1, 0, cr); + cairo_stroke (cr); + + cairo_translate (cr, -130 - 65, 130); + + cairo_new_path (cr); + _spline_decompose (&knots[3], .1, 0, cr); + cairo_stroke (cr); + + cairo_translate (cr, 130, 0); + + cairo_new_path (cr); + _spline_decompose (&knots[4], .1, 0, cr); + cairo_stroke (cr); + cairo_restore (cr); +} +#endif + +static void +draw_bbox (cairo_t *cr, double x0, double y0, double x1, double y1) +{ + cairo_rectangle (cr, + floor (x0) + .5, floor (y0) + .5, + ceil (x1) - floor (x0), ceil (y1) - floor (y0)); + cairo_stroke (cr); +} + +static void +stroke_splines (cairo_t *cr) +{ + double stroke_x0, stroke_x1, stroke_y0, stroke_y1; + double path_x0, path_x1, path_y0, path_y1; + + cairo_save (cr); + cairo_translate (cr, 15, 15); + + cairo_new_path (cr); + cairo_move_to (cr, + knots[0].a.x, knots[0].a.y); + cairo_curve_to (cr, + knots[0].b.x, knots[0].b.y, + knots[0].c.x, knots[0].c.y, + knots[0].d.x, knots[0].d.y); + cairo_stroke_extents (cr, &stroke_x0, &stroke_y0, &stroke_x1, &stroke_y1); + cairo_path_extents (cr, &path_x0, &path_y0, &path_x1, &path_y1); + cairo_stroke (cr); + + cairo_save (cr); { + cairo_set_line_width (cr, 1); + cairo_set_source_rgb (cr, 1, 0, 0); + draw_bbox (cr, stroke_x0, stroke_y0, stroke_x1, stroke_y1); + cairo_set_source_rgb (cr, 0, 0, 1); + draw_bbox (cr, path_x0, path_y0, path_x1, path_y1); + } cairo_restore (cr); + + cairo_translate (cr, 130, 0); + + cairo_new_path (cr); + cairo_move_to (cr, + knots[1].a.x, knots[1].a.y); + cairo_curve_to (cr, + knots[1].b.x, knots[1].b.y, + knots[1].c.x, knots[1].c.y, + knots[1].d.x, knots[1].d.y); + cairo_stroke_extents (cr, &stroke_x0, &stroke_y0, &stroke_x1, &stroke_y1); + cairo_path_extents (cr, &path_x0, &path_y0, &path_x1, &path_y1); + cairo_stroke (cr); + + cairo_save (cr); { + cairo_set_line_width (cr, 1); + cairo_set_source_rgb (cr, 1, 0, 0); + draw_bbox (cr, stroke_x0, stroke_y0, stroke_x1, stroke_y1); + cairo_set_source_rgb (cr, 0, 0, 1); + draw_bbox (cr, path_x0, path_y0, path_x1, path_y1); + } cairo_restore (cr); + + cairo_translate (cr, 130, 0); + + cairo_new_path (cr); + cairo_move_to (cr, + knots[2].a.x, knots[2].a.y); + cairo_curve_to (cr, + knots[2].b.x, knots[2].b.y, + knots[2].c.x, knots[2].c.y, + knots[2].d.x, knots[2].d.y); + cairo_stroke_extents (cr, &stroke_x0, &stroke_y0, &stroke_x1, &stroke_y1); + cairo_path_extents (cr, &path_x0, &path_y0, &path_x1, &path_y1); + cairo_stroke (cr); + + cairo_save (cr); { + cairo_set_line_width (cr, 1); + cairo_set_source_rgb (cr, 1, 0, 0); + draw_bbox (cr, stroke_x0, stroke_y0, stroke_x1, stroke_y1); + cairo_set_source_rgb (cr, 0, 0, 1); + draw_bbox (cr, path_x0, path_y0, path_x1, path_y1); + } cairo_restore (cr); + + cairo_translate (cr, -130 - 65, 130); + + cairo_new_path (cr); + cairo_move_to (cr, + knots[3].a.x, knots[3].a.y); + cairo_curve_to (cr, + knots[3].b.x, knots[3].b.y, + knots[3].c.x, knots[3].c.y, + knots[3].d.x, knots[3].d.y); + cairo_stroke_extents (cr, &stroke_x0, &stroke_y0, &stroke_x1, &stroke_y1); + cairo_path_extents (cr, &path_x0, &path_y0, &path_x1, &path_y1); + cairo_stroke (cr); + + cairo_save (cr); { + cairo_set_line_width (cr, 1); + cairo_set_source_rgb (cr, 1, 0, 0); + draw_bbox (cr, stroke_x0, stroke_y0, stroke_x1, stroke_y1); + cairo_set_source_rgb (cr, 0, 0, 1); + draw_bbox (cr, path_x0, path_y0, path_x1, path_y1); + } cairo_restore (cr); + + cairo_translate (cr, 130, 0); + + cairo_new_path (cr); + cairo_move_to (cr, + knots[4].a.x, knots[4].a.y); + cairo_curve_to (cr, + knots[4].b.x, knots[4].b.y, + knots[4].c.x, knots[4].c.y, + knots[4].d.x, knots[4].d.y); + cairo_stroke_extents (cr, &stroke_x0, &stroke_y0, &stroke_x1, &stroke_y1); + cairo_path_extents (cr, &path_x0, &path_y0, &path_x1, &path_y1); + cairo_stroke (cr); + + cairo_save (cr); { + cairo_set_line_width (cr, 1); + cairo_set_source_rgb (cr, 1, 0, 0); + draw_bbox (cr, stroke_x0, stroke_y0, stroke_x1, stroke_y1); + cairo_set_source_rgb (cr, 0, 0, 1); + draw_bbox (cr, path_x0, path_y0, path_x1, path_y1); + } cairo_restore (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + +#ifdef REFERENCE + cairo_set_source_rgb (cr, 0, 0, 0); + thick_splines (cr, 5); + + cairo_set_source_rgb (cr, 1, 1, 1); + thin_splines (cr); +#endif + + /* + * Use a high tolerance to reduce dependence upon algorithm used for + * spline decomposition. + */ + cairo_set_tolerance (cr, 0.001); + + cairo_set_line_width (cr, 10); + cairo_set_source_rgb (cr, 0, 0, 0); + stroke_splines (cr); + cairo_set_line_width (cr, 2); + cairo_set_source_rgb (cr, 1, 1, 1); + stroke_splines (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (spline_decomposition, + "Tests splines with various inflection points", + "stroke, spline", /* keywords */ + NULL, /* requirements */ + 390, 260, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/stride-12-image.c b/local/recipes/libs/cairo/source/test/stride-12-image.c new file mode 100644 index 0000000000..5650e98300 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/stride-12-image.c @@ -0,0 +1,71 @@ +/* + * Copyright 2012 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +static const char *png_filename = "romedalen.png"; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_format_t format = CAIRO_FORMAT_ARGB32; + cairo_t *cr_src; + cairo_surface_t *png, *src; + uint8_t *data; + int stride; + + png = cairo_test_create_surface_from_png (ctx, png_filename); + + stride = cairo_format_stride_for_width (format, width) + 12; + data = xcalloc (stride, height); + src = cairo_image_surface_create_for_data (data, format, + width, height, stride); + + cr_src = cairo_create (src); + cairo_set_source_surface (cr_src, png, 0, 0); + cairo_paint (cr_src); + cairo_destroy (cr_src); + + cairo_set_source_surface (cr, src, 0, 0); + cairo_paint (cr); + + cairo_surface_destroy (png); + + cairo_surface_finish (src); + cairo_surface_destroy (src); + + free (data); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (stride_12_image, + "Test that images with a non-default stride are handled correctly.", + "stride, image", /* keywords */ + NULL, /* requirements */ + 256, 192, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/stroke-clipped.c b/local/recipes/libs/cairo/source/test/stroke-clipped.c new file mode 100644 index 0000000000..4b8079480c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/stroke-clipped.c @@ -0,0 +1,54 @@ +/* + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "cairo-test.h" + +#define SIZE 200 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int row; + + cairo_set_source_rgb(cr, 1, 1, 1); + cairo_paint(cr); + + cairo_set_source_rgb(cr, 1, 0, 0); + for(row = 0; row < SIZE; row++) { + cairo_rectangle(cr, 0, row, SIZE, 1); + cairo_clip(cr); + + cairo_arc(cr, SIZE/2, SIZE/2, SIZE/2-8, 0, 2*M_PI); + cairo_stroke(cr); + + cairo_reset_clip(cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (stroke_clipped, + "Check that the stroke is accurately drawn through smaller clips", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/stroke-ctm-caps.c b/local/recipes/libs/cairo/source/test/stroke-ctm-caps.c new file mode 100644 index 0000000000..1bbee83c65 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/stroke-ctm-caps.c @@ -0,0 +1,78 @@ +/* + * Copyright © 2008 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#define SIZE 100 +#define PAD 2 +#define WIDTH (PAD + SIZE + PAD) +#define HEIGHT WIDTH + +/* This test is designed to test that PDF viewers use the correct + * alpha values in an Alpha SMasks. Some viewers use the color values + * instead of the alpha. The test draws a triangle and rectangle in a + * group then draws the group using cairo_mask(). The mask consists of + * a circle with the rgba (0.4, 0.4, 0.4, 0.8) and the background rgba + * (0.8, 0.8, 0.8, 0.4). + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + /* flip the CTM, which most clearly shows the problem */ + cairo_translate (cr, 0, HEIGHT); + cairo_scale (cr, 1, -1); + + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_set_line_width (cr, 10); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + + cairo_move_to (cr, 20, 20); + cairo_line_to (cr, 20, 70); + cairo_stroke (cr); + + cairo_move_to (cr, 40, 20); + cairo_line_to (cr, 70, 70); + cairo_stroke (cr); + + cairo_move_to (cr, 60, 20); + cairo_line_to (cr, 90, 20); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (stroke_ctm_caps, + "Test that the stroker correctly passes the device-space vector to the stroker for endcaps", + "stroke, transform", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/stroke-image.c b/local/recipes/libs/cairo/source/test/stroke-image.c new file mode 100644 index 0000000000..17e6653ffe --- /dev/null +++ b/local/recipes/libs/cairo/source/test/stroke-image.c @@ -0,0 +1,73 @@ +/* + * Copyright © 2006 Mozilla Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Mozilla Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Mozilla Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Vladimir Vukicevic + */ + +#include "cairo-test.h" + +#define PAD 10 +#define SIZE 100 +#define IMAGE_SIZE (SIZE-PAD*2) +#define LINE_WIDTH 10 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *image; + cairo_t *cr_image; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, IMAGE_SIZE, IMAGE_SIZE); + cr_image = cairo_create (image); + cairo_surface_destroy (image); + + /* Create the image */ + cairo_set_source_rgb (cr_image, 0, 0, 0); + cairo_paint (cr_image); + cairo_set_source_rgb (cr_image, 0, 1, 0); + cairo_set_line_width (cr_image, LINE_WIDTH); + cairo_arc (cr_image, IMAGE_SIZE/2, IMAGE_SIZE/2, IMAGE_SIZE/2 - LINE_WIDTH/2, 0, M_PI * 2.0); + cairo_stroke (cr_image); + + /* Now stroke with it */ + cairo_translate (cr, PAD, PAD); + + cairo_set_source_surface (cr, cairo_get_target (cr_image), 0, 0); + cairo_destroy (cr_image); + + cairo_new_path (cr); + cairo_set_line_width (cr, LINE_WIDTH); + cairo_arc (cr, IMAGE_SIZE/2, IMAGE_SIZE/2, IMAGE_SIZE/2 - LINE_WIDTH/2, 0, M_PI * 2.0); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (stroke_image, + "Test stroking with an image source, with a non-identity CTM", + "stroke, image, transform", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/stroke-open-box.c b/local/recipes/libs/cairo/source/test/stroke-open-box.c new file mode 100644 index 0000000000..b1dae5090d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/stroke-open-box.c @@ -0,0 +1,51 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2011 Simon Kellner + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Simon Kellner + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_move_to (cr, 5, 7); + cairo_rel_line_to (cr, 20, 0); + cairo_rel_line_to (cr, 0, 15); + cairo_rel_line_to (cr, -20, 0); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (stroke_open_box, + "Tests stroking of a 3-sided box", + "stroke,box", /* keywords */ + NULL, /* requirements */ + 30, 32, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/stroke-pattern.c b/local/recipes/libs/cairo/source/test/stroke-pattern.c new file mode 100644 index 0000000000..01e10195da --- /dev/null +++ b/local/recipes/libs/cairo/source/test/stroke-pattern.c @@ -0,0 +1,68 @@ +/* + * Copyright © 2011 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#define IMAGE_WIDTH 80 +#define IMAGE_HEIGHT 80 + + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *pattern; + + cairo_test_paint_checkered (cr); + + cairo_scale (cr, 0.3, 0.3); + cairo_translate (cr, 50, 50); + + pattern = cairo_pattern_create_linear (70, 100, 130, 100); + cairo_pattern_add_color_stop_rgba (pattern, 0, 1, 0, 0, 1.0); + cairo_pattern_add_color_stop_rgba (pattern, 1, 0, 1, 0, 0.5); + + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_PAD); + cairo_set_source (cr, pattern); + + cairo_move_to(cr, 20, 20); + cairo_curve_to(cr, + 130, 0, + 70, 200, + 180, 180); + cairo_set_line_width (cr, 20); + cairo_stroke (cr); + + cairo_pattern_destroy (pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (stroke_pattern, + "Patterned stroke", + "stroke, pattern", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/subsurface-image-repeat.c b/local/recipes/libs/cairo/source/test/subsurface-image-repeat.c new file mode 100644 index 0000000000..c741944fb0 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/subsurface-image-repeat.c @@ -0,0 +1,70 @@ +/* + * Copyright 2009 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Intel not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Intel makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * INTEL CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL INTEL CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static const char *png_filename = "romedalen.png"; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *image, *region; + cairo_t *cr_region; + + cairo_set_source_rgb (cr, .5, .5, .5); + cairo_paint (cr); + + /* fill the centre */ + region = cairo_surface_create_for_rectangle (cairo_get_target (cr), + 20, 20, 20, 20); + cr_region = cairo_create (region); + cairo_surface_destroy (region); + + image = cairo_test_create_surface_from_png (ctx, png_filename); + cairo_set_source_surface (cr_region, image, + 10 - cairo_image_surface_get_width (image)/2, + 10 - cairo_image_surface_get_height (image)/2); + cairo_paint (cr_region); + cairo_surface_destroy (image); + + cairo_set_source_surface (cr, cairo_get_target (cr_region), 20, 20); + cairo_destroy (cr_region); + + /* repeat the pattern around the outside, but do not overwrite...*/ + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT); + cairo_rectangle (cr, 0, 0, width, height); + cairo_rectangle (cr, 20, 40, 20, -20); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (subsurface_image_repeat, + "Tests source (image) clipping with repeat", + "subsurface, image, repeat", /* keywords */ + "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */ + 60, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/subsurface-modify-child.c b/local/recipes/libs/cairo/source/test/subsurface-modify-child.c new file mode 100644 index 0000000000..ed94356164 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/subsurface-modify-child.c @@ -0,0 +1,98 @@ +/* + * Copyright 2010 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Intel not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Intel makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * INTEL CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL INTEL CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *region, *similar; + cairo_t *cr_region, *cr_similar; + + cairo_set_source_rgb (cr, .5, .5, .5); + cairo_paint (cr); + + similar = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + 20, 20); + + /* copy the centre */ + cr_similar = cairo_create (similar); + cairo_surface_destroy (similar); + cairo_set_source_surface (cr_similar, cairo_get_target (cr), -20, -20); + cairo_paint (cr_similar); + similar = cairo_surface_reference (cairo_get_target (cr_similar)); + cairo_destroy (cr_similar); + + /* fill the centre */ + region = cairo_surface_create_for_rectangle (cairo_get_target (cr), + 20, 20, 20, 20); + cr_region = cairo_create (region); + cairo_surface_destroy (region); + + cairo_set_source_rgb (cr_region, 1, 1, 1); + cairo_rectangle (cr_region, 0, 0, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 1, 0, 0); + cairo_rectangle (cr_region, 10, 0, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 0, 1, 0); + cairo_rectangle (cr_region, 0, 10, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 0, 0, 1); + cairo_rectangle (cr_region, 10, 10, 10, 10); + cairo_fill (cr_region); + + cairo_destroy (cr_region); + + /* copy the centre, again */ + cr_similar = cairo_create (similar); + cairo_surface_destroy (similar); + cairo_set_source_surface (cr_similar, cairo_get_target (cr), -20, -20); + cairo_paint (cr_similar); + similar = cairo_surface_reference (cairo_get_target (cr_similar)); + cairo_destroy (cr_similar); + + /* repeat the pattern around the outside, but do not overwrite...*/ + cairo_set_source_surface (cr, similar, 20, 20); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT); + cairo_rectangle (cr, 0, 0, width, height); + cairo_rectangle (cr, 20, 40, 20, -20); + cairo_fill (cr); + + cairo_surface_destroy (similar); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (subsurface_modify_child, + "Tests source clipping with later modifications", + "subsurface", /* keywords */ + "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */ + 60, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/subsurface-modify-parent.c b/local/recipes/libs/cairo/source/test/subsurface-modify-parent.c new file mode 100644 index 0000000000..de16e7530f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/subsurface-modify-parent.c @@ -0,0 +1,78 @@ +/* + * Copyright 2010 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Intel not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Intel makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * INTEL CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL INTEL CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *region; + + cairo_set_source_rgb (cr, .5, .5, .5); + cairo_paint (cr); + + /* fill the centre, but through the *original* surface */ + region = cairo_surface_create_for_rectangle (cairo_get_target (cr), + 20, 20, 20, 20); + + /* first trigger a snapshot of the region... */ + cairo_set_source_surface (cr, region, 20, 20); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_rectangle (cr, 20, 20, 10, 10); + cairo_fill (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_rectangle (cr, 30, 20, 10, 10); + cairo_fill (cr); + + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_rectangle (cr, 20, 30, 10, 10); + cairo_fill (cr); + + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_rectangle (cr, 30, 30, 10, 10); + cairo_fill (cr); + + cairo_set_source_surface (cr, region, 20, 20); + cairo_surface_destroy (region); + + /* repeat the pattern around the outside, but do not overwrite...*/ + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT); + cairo_rectangle (cr, 0, 0, width, height); + cairo_rectangle (cr, 20, 40, 20, -20); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (subsurface_modify_parent, + "Tests source clipping with later modifications", + "subsurface", /* keywords */ + "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */ + 60, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/subsurface-outside-target.c b/local/recipes/libs/cairo/source/test/subsurface-outside-target.c new file mode 100644 index 0000000000..ef91a2e1c2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/subsurface-outside-target.c @@ -0,0 +1,177 @@ +/* + * Copyright 2010 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + */ + +#include "cairo-test.h" + +#define TARGET_SIZE 10 + +#define SUB_SIZE 15 +#define SUB_OFFSET -5 + +#define PAINT_OFFSET SUB_SIZE +#define PAINT_SIZE (3 * SUB_SIZE) + +static cairo_content_t contents[] = { CAIRO_CONTENT_ALPHA, + CAIRO_CONTENT_COLOR, + CAIRO_CONTENT_COLOR_ALPHA }; + +#define N_CONTENTS ARRAY_LENGTH (contents) +#define N_PADS (CAIRO_EXTEND_PAD + 1) + + +static cairo_surface_t * +create_target (cairo_surface_t *similar_to, + cairo_content_t content) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_surface_create_similar (similar_to, + content, + TARGET_SIZE, TARGET_SIZE); + + cr = cairo_create (surface); + cairo_test_paint_checkered (cr); + cairo_destroy (cr); + + return surface; +} + +static cairo_test_status_t +check_surface_extents (const cairo_test_context_t *ctx, + cairo_surface_t * surface, + double x, + double y, + double width, + double height) +{ + double x1, y1, x2, y2; + cairo_t *cr; + + cr = cairo_create (surface); + cairo_clip_extents (cr, &x1, &y1, &x2, &y2); + cairo_destroy (cr); + + if (x != x1 || + y != y1 || + width != x2 - x1 || + height != y2 - y1) { + cairo_test_log (ctx, + "surface extents should be (%g, %g, %g, %g), but are (%g, %g, %g, %g)\n", + x, y, width, height, + x1, y1, x2 - x1, y2 - y1); + return CAIRO_TEST_FAILURE; + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_for_size (cairo_t *cr, + double x, + double y) +{ + cairo_surface_t *target, *subsurface; + cairo_extend_t extend; + cairo_test_status_t check, result = CAIRO_TEST_SUCCESS; + unsigned int content; + + for (content = 0; content < N_CONTENTS; content++) { + cairo_save (cr); + + /* create a target surface for our subsurface */ + target = create_target (cairo_get_target (cr), + contents[content]); + + /* create a subsurface that extends the target surface */ + subsurface = cairo_surface_create_for_rectangle (target, + x, y, + SUB_SIZE, SUB_SIZE); + + /* ensure the extents are ok */ + check = check_surface_extents (cairo_test_get_context (cr), + subsurface, + 0, 0, + SUB_SIZE, SUB_SIZE); + if (result == CAIRO_TEST_SUCCESS) + result = check; + + /* paint this surface with all extend modes. */ + for (extend = 0; extend < N_PADS; extend++) { + cairo_save (cr); + + cairo_rectangle (cr, 0, 0, PAINT_SIZE, PAINT_SIZE); + cairo_clip (cr); + + cairo_set_source_surface (cr, subsurface, PAINT_OFFSET, PAINT_OFFSET); + cairo_pattern_set_extend (cairo_get_source (cr), extend); + cairo_paint (cr); + + cairo_restore (cr); + + cairo_translate (cr, PAINT_SIZE + TARGET_SIZE, 0); + } + + cairo_surface_destroy (subsurface); + cairo_surface_destroy (target); + + cairo_restore (cr); + + cairo_translate (cr, 0, PAINT_SIZE + TARGET_SIZE); + } + + return result; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_test_status_t check, result = CAIRO_TEST_SUCCESS; + + /* paint background in nice gray */ + cairo_set_source_rgb (cr, 0.51613, 0.55555, 0.51613); + cairo_paint (cr); + + /* Use CAIRO_OPERATOR_SOURCE in the tests so we get the actual + * contents of the subsurface */ + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + + result = draw_for_size (cr, SUB_OFFSET, SUB_OFFSET); + + check = draw_for_size (cr, 0, 0); + if (result == CAIRO_TEST_SUCCESS) + result = check; + + return result; +} + +CAIRO_TEST (subsurface_outside_target, + "Tests contents of subsurfaces outside target area", + "subsurface, pad", /* keywords */ + "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */ + (PAINT_SIZE + TARGET_SIZE) * N_PADS - TARGET_SIZE, + (PAINT_SIZE + TARGET_SIZE) * N_CONTENTS * 2 - TARGET_SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/subsurface-pad.c b/local/recipes/libs/cairo/source/test/subsurface-pad.c new file mode 100644 index 0000000000..1ac7a0e392 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/subsurface-pad.c @@ -0,0 +1,76 @@ +/* + * Copyright 2009 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Intel not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Intel makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * INTEL CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL INTEL CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *region; + cairo_t *cr_region; + + cairo_set_source_rgb (cr, .5, .5, .5); + cairo_paint (cr); + + /* fill the centre */ + region = cairo_surface_create_for_rectangle (cairo_get_target (cr), + 20, 20, 20, 20); + cr_region = cairo_create (region); + cairo_surface_destroy (region); + + cairo_set_source_rgb (cr_region, 1, 1, 1); + cairo_rectangle (cr_region, 0, 0, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 1, 0, 0); + cairo_rectangle (cr_region, 10, 0, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 0, 1, 0); + cairo_rectangle (cr_region, 0, 10, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 0, 0, 1); + cairo_rectangle (cr_region, 10, 10, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_surface (cr, cairo_get_target (cr_region), 20, 20); + cairo_destroy (cr_region); + + /* reflect the pattern around the outside, but do not overwrite...*/ + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_PAD); + cairo_rectangle (cr, 0, 0, width, height); + cairo_rectangle (cr, 20, 40, 20, -20); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (subsurface_pad, + "Tests source clipping with pad", + "subsurface, pad", /* keywords */ + "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */ + 60, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/subsurface-reflect.c b/local/recipes/libs/cairo/source/test/subsurface-reflect.c new file mode 100644 index 0000000000..517106df14 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/subsurface-reflect.c @@ -0,0 +1,76 @@ +/* + * Copyright 2009 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Intel not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Intel makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * INTEL CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL INTEL CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *region; + cairo_t *cr_region; + + cairo_set_source_rgb (cr, .5, .5, .5); + cairo_paint (cr); + + /* fill the centre */ + region = cairo_surface_create_for_rectangle (cairo_get_target (cr), + 20, 20, 20, 20); + cr_region = cairo_create (region); + cairo_surface_destroy (region); + + cairo_set_source_rgb (cr_region, 1, 1, 1); + cairo_rectangle (cr_region, 0, 0, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 1, 0, 0); + cairo_rectangle (cr_region, 10, 0, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 0, 1, 0); + cairo_rectangle (cr_region, 0, 10, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 0, 0, 1); + cairo_rectangle (cr_region, 10, 10, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_surface (cr, cairo_get_target (cr_region), 20, 20); + cairo_destroy (cr_region); + + /* reflect the pattern around the outside, but do not overwrite...*/ + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REFLECT); + cairo_rectangle (cr, 0, 0, width, height); + cairo_rectangle (cr, 20, 40, 20, -20); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (subsurface_reflect, + "Tests source clipping with reflect", + "subsurface, reflect", /* keywords */ + "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */ + 60, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/subsurface-repeat.c b/local/recipes/libs/cairo/source/test/subsurface-repeat.c new file mode 100644 index 0000000000..596b97338e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/subsurface-repeat.c @@ -0,0 +1,76 @@ +/* + * Copyright 2009 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Intel not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Intel makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * INTEL CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL INTEL CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *region; + cairo_t *cr_region; + + cairo_set_source_rgb (cr, .5, .5, .5); + cairo_paint (cr); + + /* fill the centre */ + region = cairo_surface_create_for_rectangle (cairo_get_target (cr), + 20, 20, 20, 20); + cr_region = cairo_create (region); + cairo_surface_destroy (region); + + cairo_set_source_rgb (cr_region, 1, 1, 1); + cairo_rectangle (cr_region, 0, 0, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 1, 0, 0); + cairo_rectangle (cr_region, 10, 0, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 0, 1, 0); + cairo_rectangle (cr_region, 0, 10, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 0, 0, 1); + cairo_rectangle (cr_region, 10, 10, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_surface (cr, cairo_get_target (cr_region), 20, 20); + cairo_destroy (cr_region); + + /* repeat the pattern around the outside, but do not overwrite...*/ + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT); + cairo_rectangle (cr, 0, 0, width, height); + cairo_rectangle (cr, 20, 40, 20, -20); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (subsurface_repeat, + "Tests source clipping with repeat", + "subsurface, repeat", /* keywords */ + "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */ + 60, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/subsurface-scale.c b/local/recipes/libs/cairo/source/test/subsurface-scale.c new file mode 100644 index 0000000000..9ffd2c4227 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/subsurface-scale.c @@ -0,0 +1,93 @@ +/* + * Copyright 2009 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Intel not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Intel makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * INTEL CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL INTEL CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *region[5]; + const char *text = "Cairo"; + int i; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_rectangle (cr, 0, 20, 200, 60); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + + for (i = 0; i < 5; i++) { + cairo_t *cr_region; + cairo_text_extents_t extents; + char buf[2] = { text[i], '\0' }; + + region[i] = cairo_surface_create_for_rectangle (cairo_get_target (cr), + 20 * i, 0, 20, 20); + + cr_region = cairo_create (region[i]); + cairo_surface_destroy (region[i]); + + cairo_select_font_face (cr_region, "@cairo:", + CAIRO_FONT_WEIGHT_NORMAL, + CAIRO_FONT_SLANT_NORMAL); + cairo_set_font_size (cr_region, 20); + cairo_text_extents (cr_region, buf, &extents); + cairo_move_to (cr_region, + 10 - (extents.width/2 + extents.x_bearing), + 10 - (extents.height/2 + extents.y_bearing)); + cairo_show_text (cr_region, buf); + + region[i] = cairo_surface_reference (cairo_get_target (cr_region)); + cairo_destroy (cr_region); + } + + cairo_scale (cr, 2, 2); + for (i = 0; i < 5; i++) { + cairo_set_source_surface (cr, region[5-i-1], 20 * i, 20); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_PAD); + cairo_rectangle (cr, 20*i, 20, 20, 20); + cairo_fill (cr); + } + + for (i = 0; i < 5; i++) { + cairo_set_source_surface (cr, region[5-i-1], 20 * i, 40); + cairo_paint_with_alpha (cr, .5); + } + + for (i = 0; i < 5; i++) + cairo_surface_destroy (region[i]); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (subsurface_scale, + "Tests clipping of both source and destination using subsurfaces", + "subsurface", /* keywords */ + "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */ + 200, 120, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/subsurface-similar-repeat.c b/local/recipes/libs/cairo/source/test/subsurface-similar-repeat.c new file mode 100644 index 0000000000..011f876e65 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/subsurface-similar-repeat.c @@ -0,0 +1,86 @@ +/* + * Copyright 2009 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Intel not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Intel makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * INTEL CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL INTEL CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *similar; + cairo_surface_t *region; + cairo_t *cr_region; + + cairo_set_source_rgb (cr, .5, .5, .5); + cairo_paint (cr); + + similar = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR, + 60, 60); + cr_region = cairo_create (similar); + cairo_surface_destroy (similar); + + cairo_set_source_rgb (cr_region, .5, .5, .0); + cairo_paint (cr_region); + similar = cairo_surface_reference (cairo_get_target (cr_region)); + cairo_destroy (cr_region); + + /* fill the centre */ + region = cairo_surface_create_for_rectangle (similar, 20, 20, 20, 20); + cairo_surface_destroy (similar); + + cr_region = cairo_create (region); + cairo_surface_destroy (region); + + cairo_set_source_rgb (cr_region, 1, 1, 1); + cairo_rectangle (cr_region, 0, 0, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 1, 0, 0); + cairo_rectangle (cr_region, 10, 0, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 0, 1, 0); + cairo_rectangle (cr_region, 0, 10, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_rgb (cr_region, 0, 0, 1); + cairo_rectangle (cr_region, 10, 10, 10, 10); + cairo_fill (cr_region); + + cairo_set_source_surface (cr, cairo_get_target (cr_region), 20, 20); + cairo_destroy (cr_region); + + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (subsurface_similar_repeat, + "Tests source clipping through an intermediate with repeat", + "subsurface, repeat", /* keywords */ + "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */ + 60, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/subsurface.c b/local/recipes/libs/cairo/source/test/subsurface.c new file mode 100644 index 0000000000..9af2ca06a3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/subsurface.c @@ -0,0 +1,85 @@ +/* + * Copyright 2009 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Intel not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Intel makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * INTEL CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL INTEL CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *region[5]; + const char *text = "Cairo"; + int i; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + for (i = 0; i < 5; i++) { + cairo_t *cr_region; + cairo_text_extents_t extents; + char buf[2] = { text[i], '\0' }; + + region[i] = cairo_surface_create_for_rectangle (cairo_get_target (cr), + 20 * i, 0, 20, 20); + + cr_region = cairo_create (region[i]); + cairo_surface_destroy (region[i]); + + cairo_select_font_face (cr_region, "@cairo:", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr_region, 20); + cairo_text_extents (cr_region, buf, &extents); + cairo_move_to (cr_region, + 10 - (extents.width/2 + extents.x_bearing), + 10 - (extents.height/2 + extents.y_bearing)); + cairo_show_text (cr_region, buf); + + region[i] = cairo_surface_reference (cairo_get_target (cr_region)); + cairo_destroy (cr_region); + } + + for (i = 0; i < 5; i++) { + cairo_set_source_surface (cr, region[5-i-1], 20 * i, 20); + cairo_paint (cr); + } + + for (i = 0; i < 5; i++) { + cairo_set_source_surface (cr, region[5-i-1], 20 * i, 40); + cairo_paint_with_alpha (cr, .5); + } + + for (i = 0; i < 5; i++) + cairo_surface_destroy (region[i]); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (subsurface, + "Tests clipping of both source and destination using subsurfaces", + "subsurface", /* keywords */ + "target=raster", /* FIXME! recursion bug in subsurface/snapshot (with pdf backend) */ /* requirements */ + 100, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/summarize-test-results.sh b/local/recipes/libs/cairo/source/test/summarize-test-results.sh new file mode 100755 index 0000000000..f77c9e1995 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/summarize-test-results.sh @@ -0,0 +1,29 @@ +#!/bin/bash + +# Must be run from inside a test/output directory after a cairo +# test has finished running. + +grep -h ^TEST *.log > results.txt +echo "Results written to results.txt" + +total=$(grep "RESULT:" results.txt | wc -l) +total_pass=$(grep "RESULT: PASS" results.txt | wc -l) +total_fail=$(grep "RESULT: FAIL" results.txt | wc -l) +total_xfail=$(grep "RESULT: XFAIL" results.txt | wc -l) +total_error=$(grep "RESULT: ERROR" results.txt | wc -l) +total_crash=$(grep "RESULT: CRASHED" results.txt | wc -l) +total_untested=$(grep "RESULT: UNTESTED" results.txt | wc -l) +total_calc=$((total_pass + total_fail + total_error + total_xfail + total_crash + total_untested)) + +echo "#######" | tee -a results.txt +echo "# Tests run: $total" | tee -a results.txt +echo "# Passed: $total_pass" | tee -a results.txt +echo "# Failed: $total_fail" | tee -a results.txt +echo "# Expected Failed: $total_xfail" | tee -a results.txt +echo "# Error: $total_error" | tee -a results.txt +echo "# Crashed: $total_crash" | tee -a results.txt +echo "# Untested: $total_untested" | tee -a results.txt +echo "# Total: $total_calc" | tee -a results.txt +echo "#######" | tee -a results.txt + + diff --git a/local/recipes/libs/cairo/source/test/surface-finish-twice.c b/local/recipes/libs/cairo/source/test/surface-finish-twice.c new file mode 100644 index 0000000000..f63b501753 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/surface-finish-twice.c @@ -0,0 +1,79 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl Worth + */ + +/* Bug history + * + * 2005-04-10 stevech1097@yahoo.com.au + * + * Subject: [Bug 2950] New: *** glibc detected *** double free or corruption + * URL: https://bugs.freedesktop.org/show_bug.cgi?id=2950 + * + * The following short program gives the error message: + * + * *** glibc detected *** double free or corruption: 0x082a7268 *** + * Aborted + * + * 2005-04-13 Carl Worth + * + * Looks like surface->finished was never being set. Now fixed. + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_surface_t *surface; + cairo_status_t status; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 1); + + cairo_surface_finish (surface); + status = cairo_surface_status (surface); + if (status != CAIRO_STATUS_SUCCESS) + return cairo_test_status_from_status (ctx, status); + + cairo_surface_finish (surface); + status = cairo_surface_status (surface); + if (status != CAIRO_STATUS_SUCCESS) + return cairo_test_status_from_status (ctx, status); + + cairo_surface_finish (surface); + status = cairo_surface_status (surface); + if (status != CAIRO_STATUS_SUCCESS) + return cairo_test_status_from_status (ctx, status); + + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (surface_finish_twice, + "Test to exercise a crash when calling cairo_surface_finish twice on the same surface.", + "api", /* keywords */ + NULL, /* requirements */ + 0, 0, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/surface-pattern-big-scale-down.c b/local/recipes/libs/cairo/source/test/surface-pattern-big-scale-down.c new file mode 100644 index 0000000000..698accb6f4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/surface-pattern-big-scale-down.c @@ -0,0 +1,125 @@ +/* + * Copyright © 2006 Mozilla Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Mozilla Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Mozilla Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Vladimir Vukicevic + */ + +#include "cairo-test.h" + +#define SRC_WIDTH 2048 +#define SRC_HEIGHT 32 + +static cairo_surface_t * +create_source_surface (int w, int h) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, SRC_WIDTH, SRC_HEIGHT); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + cairo_rectangle (cr, 0, 0, w/2, h/2); + cairo_fill (cr); + + cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); + cairo_rectangle (cr, w/2, 0, w/2, h/2); + cairo_fill (cr); + + cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); + cairo_rectangle (cr, 0, h/2, w/2, h/2); + cairo_fill (cr); + + cairo_set_source_rgb (cr, 1.0, 1.0, 0.0); + cairo_rectangle (cr, w/2, h/2, w/2, h/2); + cairo_fill (cr); + + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return surface; +} + +static void +draw_n (cairo_t *cr, cairo_pattern_t *pat, double dest_size, int n) +{ + cairo_matrix_t mat; + + cairo_matrix_init_scale (&mat, SRC_WIDTH / dest_size, SRC_HEIGHT / dest_size); + cairo_matrix_translate (&mat, n * -dest_size, 0.0); + cairo_pattern_set_matrix (pat, &mat); + + cairo_set_source (cr, pat); + cairo_new_path (cr); + cairo_rectangle (cr, n * dest_size, 0.0, dest_size, dest_size); + cairo_fill (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_pattern_t *pat; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + surface = create_source_surface (SRC_WIDTH, SRC_HEIGHT); + + pat = cairo_pattern_create_for_surface (surface); + cairo_surface_destroy (surface); + + /* We want to draw at a position such that n * SRC_WIDTH * (SRC_WIDTH/16.0) > 32768. + * x = n * 16. + * + * To show the bug, we want to draw on either side of the boundary; + * in our case here, n = 16 results in 32768, and n = 17 results in > 32768. + * + * Drawing at 16 and 17 is sufficient to show the problem. + */ + +#if 1 + /* n = 16 */ + draw_n (cr, pat, 16.0, 16); + + /* n = 17 */ + draw_n (cr, pat, 16.0, 17); +#else + { + int n; + for (n = 0; n < 32; n++) + draw_n (cr, pat, 16.0, n); + } +#endif + + cairo_pattern_destroy (pat); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (surface_pattern_big_scale_down, + "Test scaled-down transformed not-repeated surface patterns with large images and offsets", + "transform", /* keywords */ + NULL, /* requirements */ + 512, 16, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/surface-pattern-operator.c b/local/recipes/libs/cairo/source/test/surface-pattern-operator.c new file mode 100644 index 0000000000..994baf92ea --- /dev/null +++ b/local/recipes/libs/cairo/source/test/surface-pattern-operator.c @@ -0,0 +1,119 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2009 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +#define N_OPERATORS (CAIRO_OPERATOR_SATURATE + 1) +#define HEIGHT 16 +#define WIDTH 16 +#define PAD 3 + +static cairo_pattern_t* +_create_pattern (cairo_surface_t *target, cairo_content_t content, int width, int height) +{ + cairo_pattern_t *pattern; + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_surface_create_similar (target, content, width, height); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_arc (cr, 0.5 * width, 0.5 * height, 0.45 * height, -M_PI / 4, 3 * M_PI / 4); + cairo_fill (cr); + + pattern = cairo_pattern_create_for_surface (cairo_get_target (cr)); + cairo_destroy (cr); + + return pattern; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *alpha_pattern, *color_alpha_pattern, *pattern; + unsigned int n, i; + + alpha_pattern = _create_pattern (cairo_get_target (cr), + CAIRO_CONTENT_ALPHA, + 0.9 * WIDTH, 0.9 * HEIGHT); + color_alpha_pattern = _create_pattern (cairo_get_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + 0.9 * WIDTH, 0.9 * HEIGHT); + + pattern = cairo_pattern_create_linear (WIDTH, 0, 0, HEIGHT); + cairo_pattern_add_color_stop_rgba (pattern, 0.2, 0, 0, 1, 1); + cairo_pattern_add_color_stop_rgba (pattern, 0.8, 0, 0, 1, 0); + + cairo_translate (cr, PAD, PAD); + + for (n = 0; n < N_OPERATORS; n++) { + cairo_save (cr); + for (i = 0; i < 4; i++) { + cairo_reset_clip (cr); + cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT); + cairo_clip (cr); + + cairo_set_source (cr, pattern); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + if (i & 2) { + cairo_paint (cr); + } else { + cairo_rectangle (cr, WIDTH/2, HEIGHT/2, WIDTH, HEIGHT); + cairo_fill (cr); + } + + cairo_set_source (cr, i & 1 ? alpha_pattern : color_alpha_pattern); + cairo_set_operator (cr, n); + if (i & 2) { + cairo_paint (cr); + } else { + cairo_rectangle (cr, WIDTH/2, HEIGHT/2, WIDTH, HEIGHT); + cairo_fill (cr); + } + + cairo_translate (cr, 0, HEIGHT+PAD); + } + cairo_restore (cr); + + cairo_translate (cr, WIDTH+PAD, 0); + } + + cairo_pattern_destroy (pattern); + cairo_pattern_destroy (alpha_pattern); + cairo_pattern_destroy (color_alpha_pattern); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (surface_pattern_operator, + "Tests alpha-only and alpha-color sources with all operators", + "surface, pattern, operator", /* keywords */ + NULL, /* requirements */ + (WIDTH+PAD) * N_OPERATORS + PAD, 4*HEIGHT + 5*PAD, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/surface-pattern-scale-down-extend.c b/local/recipes/libs/cairo/source/test/surface-pattern-scale-down-extend.c new file mode 100644 index 0000000000..785678dafb --- /dev/null +++ b/local/recipes/libs/cairo/source/test/surface-pattern-scale-down-extend.c @@ -0,0 +1,120 @@ +/* + * Copyright © 2010 M Joonas Pihlaja + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: M Joonas Pihlaja + */ +#include "cairo-test.h" + +/* Test that we can simultaneously downscale and extend a surface + * pattern. Reported by Franz Schmid to the cairo mailing list as a + * regression in 1.9.6: + * + * https://lists.cairographics.org/archives/cairo/2010-February/019492.html + */ + +static cairo_test_status_t +draw_with_extend (cairo_t *cr, int w, int h, cairo_extend_t extend) +{ + cairo_pattern_t *pattern; + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + + cairo_save (cr); + + /* When the destination surface is created by cairo-test-suite to + * test device-offset, it is bigger than w x h. This test expects + * the group to have a size which is exactly w x h, so it must + * clip to the this rectangle to guarantee that the group will + * have the correct size. + */ + cairo_rectangle (cr, 0, 0, w, h); + cairo_clip (cr); + + cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR); { + /* A two by two checkerboard with black, red and yellow + * cells. */ + cairo_set_source_rgb (cr, 1,0,0); + cairo_rectangle (cr, w/2, 0, w-w/2, h/2); + cairo_fill (cr); + cairo_set_source_rgb (cr, 1,1,0); + cairo_rectangle (cr, 0, h/2, w/2, h-h/2); + cairo_fill (cr); + } + pattern = cairo_pop_group (cr); + cairo_pattern_set_extend(pattern, extend); + + cairo_restore (cr); + + cairo_scale (cr, 0.5, 0.5); + cairo_set_source (cr, pattern); + cairo_paint (cr); + + cairo_pattern_destroy (pattern); + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_repeat (cairo_t *cr, int w, int h) +{ + return draw_with_extend (cr, w, h, CAIRO_EXTEND_REPEAT); +} +static cairo_test_status_t +draw_none (cairo_t *cr, int w, int h) +{ + return draw_with_extend (cr, w, h, CAIRO_EXTEND_NONE); +} +static cairo_test_status_t +draw_reflect (cairo_t *cr, int w, int h) +{ + return draw_with_extend (cr, w, h, CAIRO_EXTEND_REFLECT); +} +static cairo_test_status_t +draw_pad (cairo_t *cr, int w, int h) +{ + return draw_with_extend (cr, w, h, CAIRO_EXTEND_PAD); +} + +CAIRO_TEST (surface_pattern_scale_down_extend_repeat, + "Test interaction of downscaling a surface pattern and extend-repeat", + "pattern, transform, extend", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw_repeat) +CAIRO_TEST (surface_pattern_scale_down_extend_none, + "Test interaction of downscaling a surface pattern and extend-none", + "pattern, transform, extend", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw_none) +CAIRO_TEST (surface_pattern_scale_down_extend_reflect, + "Test interaction of downscaling a surface pattern and extend-reflect", + "pattern, transform, extend", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw_reflect) +CAIRO_TEST (surface_pattern_scale_down_extend_pad, + "Test interaction of downscaling a surface pattern and extend-pad", + "pattern, transform, extend", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw_pad) diff --git a/local/recipes/libs/cairo/source/test/surface-pattern-scale-down.c b/local/recipes/libs/cairo/source/test/surface-pattern-scale-down.c new file mode 100644 index 0000000000..95782efb18 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/surface-pattern-scale-down.c @@ -0,0 +1,88 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Behdad Esfahbod + */ + +#include "cairo-test.h" +#include +#include + +#define SIZE 200 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_t * cr_surface; + int surface_size = 300; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + /* Create an image surface with my favorite four colors in each + * quadrant. */ + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + surface_size, surface_size); + cr_surface = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr_surface, 1, 1, 1); + cairo_rectangle (cr_surface, + 0, 0, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 1, 0, 0); + cairo_rectangle (cr_surface, + surface_size / 2, 0, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 0, 1, 0); + cairo_rectangle (cr_surface, + 0, surface_size / 2, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 0, 0, 1); + cairo_rectangle (cr_surface, + surface_size / 2, surface_size / 2, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + + cairo_scale (cr, 0.2, 0.2); + cairo_rotate (cr, 1.); + cairo_set_source_surface (cr, cairo_get_target (cr_surface), 225, -225); + cairo_destroy (cr_surface); + + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_NONE); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (surface_pattern_scale_down, + "Test scaled-down transformed not-repeated surface patterns" + "\nFails xlib backend (with argb32) with inexplicable alpha in result", + "transform", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/surface-pattern-scale-up.c b/local/recipes/libs/cairo/source/test/surface-pattern-scale-up.c new file mode 100644 index 0000000000..0d71ba1508 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/surface-pattern-scale-up.c @@ -0,0 +1,93 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Behdad Esfahbod + */ + +/* Exhibits nasty behaviour with GS due as their /Interpolate implementation + * does not function for rotated images. */ + +#include "cairo-test.h" +#include +#include + +#define SIZE 100 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_t * cr_surface; + int surface_size = 6; + + /* Fill the background with grey, so that it's easily visible when + * things get overdrawn */ + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_paint (cr); + + /* Create an image surface with my favorite four colors in each + * quadrant. */ + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + surface_size, surface_size); + cr_surface = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr_surface, 1, 1, 1); + cairo_rectangle (cr_surface, + 0, 0, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 1, 0, 0); + cairo_rectangle (cr_surface, + surface_size / 2, 0, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 0, 1, 0); + cairo_rectangle (cr_surface, + 0, surface_size / 2, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 0, 0, 1); + cairo_rectangle (cr_surface, + surface_size / 2, surface_size / 2, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + + cairo_scale (cr, 10, 10); + cairo_rotate (cr, 1.); + cairo_set_source_surface (cr, cairo_get_target (cr_surface), 4, -4.5); + cairo_destroy (cr_surface); + + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_NONE); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (surface_pattern_scale_up, + "Test scaled-up transformed not-repeated surface patterns" + "\nFails xlib backend (with argb32) with inexplicable alpha in result", + "transform", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/surface-pattern.c b/local/recipes/libs/cairo/source/test/surface-pattern.c new file mode 100644 index 0000000000..725f68d000 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/surface-pattern.c @@ -0,0 +1,90 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Behdad Esfahbod + */ + +#include "cairo-test.h" +#include +#include + +#define SIZE 140 +/* Note GhostScript does not support /Interpolate on rotated images, so the PS + * output looks terrible, but is a known issue. */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_t * cr_surface; + int surface_size = 6; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + /* Create an image surface with my favorite four colors in each + * quadrant. */ + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + surface_size, surface_size); + cr_surface = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr_surface, 1, 1, 1); + cairo_rectangle (cr_surface, + 0, 0, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 1, 0, 0); + cairo_rectangle (cr_surface, + surface_size / 2, 0, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 0, 1, 0); + cairo_rectangle (cr_surface, + 0, surface_size / 2, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 0, 0, 1); + cairo_rectangle (cr_surface, + surface_size / 2, surface_size / 2, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + + cairo_scale (cr, 10, 10); + cairo_rotate (cr, 1.); + cairo_set_source_surface (cr, cairo_get_target (cr_surface), 1.5, 1.5); + cairo_destroy (cr_surface); + + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (surface_pattern, + "Test transformed repeated surface patterns" + "\nExhibiting a strange (very minor) failure in ps backend with device-offset", + "transform", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/surface-source.c b/local/recipes/libs/cairo/source/test/surface-source.c new file mode 100644 index 0000000000..657a0c88e3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/surface-source.c @@ -0,0 +1,170 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_surface_t *create_source_surface (int size); + +/* We use a relatively large source to exercise bug: + * Bug 7360 painting huge surfaces fails + * [https://bugs.freedesktop.org/show_bug.cgi?id=7360] + * but still keep the resultant image small for reasonably quick checking. + */ +#define SOURCE_SIZE 2000 +#define INTER_SIZE 512 +#define SIZE 96 + +static void +draw_pattern (cairo_surface_t **surface_inout, int surface_size) +{ + cairo_t *cr; + int mid = surface_size/2; + + cr = cairo_create (*surface_inout); + cairo_surface_destroy (*surface_inout); + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgba (cr, 0, 0, 0, 0); + cairo_paint (cr); + + cairo_rectangle (cr, 0, 0, surface_size, surface_size); + cairo_rectangle (cr, mid - SIZE/4, mid + SIZE/4, SIZE/2, -SIZE/2); + cairo_clip (cr); + + /* outside squares -> opaque */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_rectangle (cr, + 0, 0, + surface_size / 2, surface_size / 2); + cairo_fill (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_rectangle (cr, + surface_size / 2, 0, + surface_size / 2, surface_size / 2); + cairo_fill (cr); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_rectangle (cr, + 0, surface_size / 2, + surface_size / 2, surface_size / 2); + cairo_fill (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_rectangle (cr, + surface_size / 2, surface_size / 2, + surface_size / 2, surface_size / 2); + cairo_fill (cr); + + cairo_reset_clip (cr); + cairo_rectangle (cr, mid - SIZE/4, mid - SIZE/4, SIZE/2, SIZE/2); + cairo_clip (cr); + + /* inside squares -> translucent */ + cairo_set_source_rgba (cr, 0, 0, 1, .5); + cairo_rectangle (cr, + 0, 0, + surface_size / 2, surface_size / 2); + cairo_fill (cr); + cairo_set_source_rgba (cr, 0, 1, 0, .5); + cairo_rectangle (cr, + surface_size / 2, 0, + surface_size / 2, surface_size / 2); + cairo_fill (cr); + cairo_set_source_rgba (cr, 1, 0, 0, .5); + cairo_rectangle (cr, + 0, surface_size / 2, + surface_size / 2, surface_size / 2); + cairo_fill (cr); + cairo_set_source_rgba (cr, 1, 1, 1, .5); + cairo_rectangle (cr, + surface_size / 2, surface_size / 2, + surface_size / 2, surface_size / 2); + cairo_fill (cr); + + + *surface_inout = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_surface_t *similar; + cairo_status_t status; + cairo_t *cr2; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + surface = create_source_surface (SOURCE_SIZE); + if (surface == NULL) /* can't create the source so skip the test */ + return CAIRO_TEST_UNTESTED; + + draw_pattern (&surface, SOURCE_SIZE); + + /* copy a subregion to a smaller intermediate surface */ + similar = cairo_surface_create_similar (surface, + CAIRO_CONTENT_COLOR_ALPHA, + INTER_SIZE, INTER_SIZE); + cr2 = cairo_create (similar); + cairo_surface_destroy (similar); + cairo_set_source_surface (cr2, surface, + (INTER_SIZE - SOURCE_SIZE)/2, + (INTER_SIZE - SOURCE_SIZE)/2); + cairo_paint (cr2); + + /* and then paint onto a small surface for checking */ + cairo_set_source_surface (cr, cairo_get_target (cr2), + (width - INTER_SIZE)/2, + (height - INTER_SIZE)/2); + cairo_destroy (cr2); + cairo_rectangle (cr, 16, 16, 64, 64); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_fill (cr); + + /* destroy the surface last, as this triggers XCloseDisplay */ + cairo_surface_finish (surface); + status = cairo_surface_status (surface); + cairo_surface_destroy (surface); + + return cairo_test_status_from_status (cairo_test_get_context (cr), + status); +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_surface_t *surface; + cairo_status_t status; + + surface = create_source_surface (SOURCE_SIZE); + if (surface == NULL) /* can't create the source so skip the test */ + return CAIRO_TEST_UNTESTED; + + cairo_surface_finish (surface); + status = cairo_surface_status (surface); + cairo_surface_destroy (surface); + + return cairo_test_status_from_status (ctx, status); +} diff --git a/local/recipes/libs/cairo/source/test/svg-clip.c b/local/recipes/libs/cairo/source/test/svg-clip.c new file mode 100644 index 0000000000..d34144a9c6 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg-clip.c @@ -0,0 +1,152 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Kristian Høgsberg + */ + +#include "cairo-test.h" + +#include + +#include + +/* Test SVG clipping */ + +#define WIDTH_IN_POINTS 600 +#define HEIGHT_IN_POINTS 600 +#define BASENAME "svg-clip.out" + +static void +test_clip (cairo_t *cr, double width, double height) +{ + cairo_t *cr2; + + /* Basic test; set a square clip and draw a circle to be clipped + * against it.*/ + + cairo_rectangle (cr, 100, 100, 400, 400); + cairo_clip (cr); + cairo_arc (cr, 300, 300, 210, 0, 2 * M_PI); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill (cr); + + /* Add a plus shaped clip path to the square clip and draw a big + * green square to test the new clip path. */ + + cairo_save (cr); + + cairo_rectangle (cr, 250, 100, 100, 400); + cairo_rectangle (cr, 100, 250, 400, 100); + cairo_clip (cr); + + cairo_rectangle (cr, 0, 0, 600, 600); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_fill (cr); + + cairo_restore (cr); + + /* Set a bezier shape in addition to the rectangle clip set before + * the cairo_save() to verify that we successfully removed the + * plus shaped clip path and can set a new clip.*/ + + cairo_move_to (cr, 600, 0); + cairo_curve_to (cr, 300, 600, 0, 300, 600, 0); + cairo_clip (cr); + + cairo_rectangle (cr, 0, 0, 600, 600); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_fill (cr); + + /* Create a new context for this surface to test overlapped + * drawing from two contexts */ + cr2 = cairo_create (cairo_get_group_target (cr)); + + /* Using the new context, draw a black vertical line, which should + * appear unclipped on top of everything drawn so far. */ + cairo_move_to (cr2, 110, 0); + cairo_line_to (cr2, 110, 600); + cairo_stroke (cr2); + + /* Using the first context, draw another black vertical line. + * This line should be clipped against the bezier clipping path set + * earlier. */ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_move_to (cr, 400, 0); + cairo_line_to (cr, 400, 600); + cairo_stroke (cr); + + cairo_destroy (cr2); + + /* Test reset clip. Draw a transparent black circle over + * everything. Specifically, make sure the circle extends outside + * the square clip set at the top of this function. */ + cairo_reset_clip (cr); + cairo_arc (cr, 300, 300, 220, 0, 2 * M_PI); + cairo_set_source_rgba (cr, 0, 0, 0, 0.2); + cairo_fill (cr); +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_t *cr; + cairo_surface_t *surface; + char *filename; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + + if (! cairo_test_is_target_enabled (ctx, "svg11") && + ! cairo_test_is_target_enabled (ctx, "svg12")) + { + return CAIRO_TEST_UNTESTED; + } + + xasprintf (&filename, "%s/%s.svg", path, BASENAME); + surface = cairo_svg_surface_create (filename, + WIDTH_IN_POINTS, HEIGHT_IN_POINTS); + if (cairo_surface_status (surface)) { + cairo_test_log (ctx, + "Failed to create svg surface for file %s: %s\n", + filename, cairo_status_to_string (cairo_surface_status (surface))); + free (filename); + return CAIRO_TEST_FAILURE; + } + + cr = cairo_create (surface); + + test_clip (cr, WIDTH_IN_POINTS, HEIGHT_IN_POINTS); + cairo_show_page (cr); + + cairo_destroy (cr); + cairo_surface_destroy (surface); + + printf ("svg-clip: Please check %s to make sure it looks happy.\n", + filename); + free (filename); + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (svg_clip, + "Test SVG clipping", + "svg, clip", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/svg-surface-source.c b/local/recipes/libs/cairo/source/test/svg-surface-source.c new file mode 100644 index 0000000000..3c7730f7f4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg-surface-source.c @@ -0,0 +1,54 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" +#include + +#include "surface-source.c" + +#define BASENAME "svg-surface-source.out" + +static cairo_surface_t * +create_source_surface (int size) +{ + cairo_surface_t *surface; + char *filename; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + + xasprintf (&filename, "%s/%s.svg", path, BASENAME); + surface = cairo_svg_surface_create (filename, + size, size); + cairo_surface_set_fallback_resolution (surface, 72., 72.); + free (filename); + + return surface; +} + +CAIRO_TEST (svg_surface_source, + "Test using a SVG surface as the source", + "source", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + preamble, draw) diff --git a/local/recipes/libs/cairo/source/test/svg-surface.c b/local/recipes/libs/cairo/source/test/svg-surface.c new file mode 100644 index 0000000000..13b006d397 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg-surface.c @@ -0,0 +1,136 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#include + +#include + +/* Pretty boring test just to make sure things aren't crashing --- + * no verification that we're getting good results yet. + * But you can manually view the image to make sure it looks happy. + */ + +#define WIDTH_IN_INCHES 3 +#define HEIGHT_IN_INCHES 3 +#define WIDTH_IN_POINTS (WIDTH_IN_INCHES * 72) +#define HEIGHT_IN_POINTS (HEIGHT_IN_INCHES * 72) +#define BASENAME "svg-surface.out" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ +#define STROKE_WIDTH .04 + + double size; + + if (width > height) + size = height; + else + size = width; + + cairo_translate (cr, (width - size) / 2.0, (height - size) / 2.0); + cairo_scale (cr, size, size); + + /* Fill face */ + cairo_arc (cr, 0.5, 0.5, 0.5 - STROKE_WIDTH, 0, 2 * M_PI); + cairo_set_source_rgb (cr, 1, 1, 0); + cairo_save (cr); + { + cairo_fill (cr); + } + cairo_restore (cr); + + cairo_set_source_rgb (cr, 0, 0, 0); + + /* Stroke face */ + cairo_set_line_width (cr, STROKE_WIDTH / 2.0); + cairo_stroke (cr); + + /* Eyes */ + cairo_set_line_width (cr, STROKE_WIDTH); + cairo_arc (cr, 0.3, 0.4, STROKE_WIDTH, 0, 2 * M_PI); + cairo_fill (cr); + cairo_arc (cr, 0.7, 0.4, STROKE_WIDTH, 0, 2 * M_PI); + cairo_fill (cr); + + /* Mouth */ + cairo_move_to (cr, 0.3, 0.7); + cairo_curve_to (cr, + 0.4, 0.8, + 0.6, 0.8, + 0.7, 0.7); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_t *cr; + cairo_surface_t *surface; + char *filename; + const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : "."; + + if (! cairo_test_is_target_enabled (ctx, "svg11") && + ! cairo_test_is_target_enabled (ctx, "svg12")) + { + return CAIRO_TEST_UNTESTED; + } + + xasprintf (&filename, "%s/%s.svg", path, BASENAME); + surface = cairo_svg_surface_create (filename, + WIDTH_IN_POINTS, HEIGHT_IN_POINTS); + if (cairo_surface_status (surface)) { + cairo_test_log (ctx, + "Failed to create svg surface for file %s: %s\n", + filename, + cairo_status_to_string (cairo_surface_status (surface))); + free (filename); + return CAIRO_TEST_FAILURE; + } + + cr = cairo_create (surface); + + draw (cr, WIDTH_IN_POINTS, HEIGHT_IN_POINTS); + + cairo_show_page (cr); + + cairo_destroy (cr); + cairo_surface_destroy (surface); + + printf ("svg-surface: Please check %s to make sure it looks happy.\n", filename); + free (filename); + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (svg_surface, + "Check creation of a SVG surface", + "svg", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/svg/README b/local/recipes/libs/cairo/source/test/svg/README new file mode 100644 index 0000000000..c4504dc9b4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/README @@ -0,0 +1,22 @@ +build_ttx_fonts.py +================== +Is used to create the test/*.ttx files used for testing the SVG glyph renderer. + +build_ttx_fonts.py will look for files of the form + +...svg + +in the input directory, and using svg-font-template.ttx, create .ttx +files that contain one glyph for each svg file. Each .ttx will contain +a glyph for each svg with the matching prefix. Each glyphs will be mapped +to the i nthe svg filename. The must be one of 0-9,A-F. + +svg-render.c +============ +svg-render renders SVG files using both librsvg and cairo-svg-glyph-render.c. +It is used for testing cairo-svg-glyph-render.c during development. + +To use svg-render, cairo must be built with CFLAGS="-DDEBUG_SVG_RENDER" to enable the +_cairo_debug_svg_render() function. + + diff --git a/local/recipes/libs/cairo/source/test/svg/build_ttx_fonts.py b/local/recipes/libs/cairo/source/test/svg/build_ttx_fonts.py new file mode 100755 index 0000000000..d7e7f5b8f3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/build_ttx_fonts.py @@ -0,0 +1,161 @@ +#!/usr/bin/env python3 + +# Build the ttx cairo svg test fonts from svg files +# The svg files use the naming convention +# ...svg +# eg "circle.A.cx_cy_r.svg" +# +# is use to create the name of the ttx font. +# is a ascii hex character (uppercase) that the font fill map to the SVG description. +# is a descriptive name of the SVG file and is not used to build the font… +# +# This script looks for all files matching the above pattern and +# creates one ttx font for each unique . Each font will +# contain up to 16 characters. The SVG description of each character +# and the character that maps to the SVG description is obtained from +# the SVG file beginning with .. + +import argparse +import os +import re +import sys +import xml.dom.minidom + +TEMPLATE_FILE="svg-font-template.ttx" + +glyph_names = { + '0': 'zero', + '1': 'one', + '2': 'two', + '3': 'three', + '4': 'four', + '5': 'five', + '6': 'six', + '7': 'seven', + '8': 'eight', + '9': 'nine', + 'A': 'A', + 'B': 'B', + 'C': 'C', + 'D': 'D', + 'E': 'E', + 'F': 'F' +} + +# files is list of (char, filename) +def build_font(font_name, files, in_dir, out_dir, no_reformat): + name = "cairo-svg-test-" + font_name + doc = xml.dom.minidom.parse(os.path.join(in_dir, TEMPLATE_FILE)) + glyph_id = 1 + text_nl = doc.createTextNode('\n\n') + for f in sorted(files): + glyph_name = glyph_names[f[0]] + + glyph_order = doc.getElementsByTagName('GlyphOrder')[0] + glyph_id_elem = doc.createElement('GlyphID') + glyph_id_elem.setAttribute('id', str(glyph_id)) + glyph_id_elem.setAttribute('name', glyph_name) + glyph_order.appendChild(glyph_id_elem) + glyph_order.appendChild(text_nl) + + hmtx = doc.getElementsByTagName('hmtx')[0] + mtx = doc.createElement('mtx') + mtx.setAttribute('name', glyph_name) + mtx.setAttribute('width', '1100') + mtx.setAttribute('lsb', '0') + hmtx.appendChild(mtx) + + cmap_format = doc.getElementsByTagName('cmap_format_4')[0] + map = doc.createElement('map') + map.setAttribute('code', hex(ord(f[0]))) + map.setAttribute('name', glyph_name) + cmap_format.appendChild(map) + + glyf = doc.getElementsByTagName('glyf')[0] + tt_glyph = doc.createElement('TTGlyph') + tt_glyph.setAttribute('name', glyph_name) + glyf.appendChild(tt_glyph) + contour = doc.createElement('contour') + tt_glyph.appendChild(contour) + pt = doc.createElement('pt') + pt.setAttribute('x', "0") + pt.setAttribute('y', "0") + pt.setAttribute('on', "1") + contour.appendChild(pt) + pt = doc.createElement('pt') + pt.setAttribute('x', "0") + pt.setAttribute('y', "1000") + pt.setAttribute('on', "1") + contour.appendChild(pt) + pt = doc.createElement('pt') + pt.setAttribute('x', "1000") + pt.setAttribute('y', "1000") + pt.setAttribute('on', "1") + contour.appendChild(pt) + pt = doc.createElement('pt') + pt.setAttribute('x', "1000") + pt.setAttribute('y', "0") + pt.setAttribute('on', "1") + contour.appendChild(pt) + instructions = doc.createElement('instructions') + tt_glyph.appendChild(instructions) + + svg = doc.getElementsByTagName('SVG')[0] + svgdoc = doc.createElement('svgDoc') + svgdoc.setAttribute('startGlyphID', str(glyph_id)) + svgdoc.setAttribute('endGlyphID', str(glyph_id)) + with open(os.path.join(in_dir, f[1]), 'r') as svg_file: + svg_data = svg_file.read() + cdata = doc.createCDATASection(svg_data) + svgdoc.appendChild(cdata) + svg.appendChild(svgdoc) + glyph_id += 1 + + name_record = doc.getElementsByTagName('namerecord')[0] + name_record.firstChild.replaceWholeText(name.replace("-", " ").title()) + name_record = doc.getElementsByTagName('namerecord')[2] + name_record.firstChild.replaceWholeText(name.replace("-", " ").title() + " Regular") + + ttx_filename = os.path.join(out_dir, name + '.ttx') + ttf_filename = os.path.join(out_dir, name + '.ttf') + with open(ttx_filename, 'w') as ttx_file: + doc.writexml(ttx_file) + + if not no_reformat: + # Convert to ttf and back to ttx. This reformats the ttx file + # which allows better quality diffs. + if os.path.exists(ttf_filename): + os.remove(ttf_filename) + os.system("ttx " + ttx_filename) + os.remove(ttx_filename) + os.system("ttx " + ttf_filename) + os.remove(ttf_filename) + +def build_file_list(in_dir): + dict = {} + regex_prog = re.compile(r"([^\.]+)\.(.)\.[^\.]+\.svg", re.ASCII) + files = os.listdir(in_dir) + for f in files: + match = regex_prog.fullmatch(f) + if match: + fontname = match.group(1) + character = match.group(2) + if (fontname not in dict): + dict[fontname] = [(character, f)]; + else: + dict[fontname].append((character, f)) + return dict + +if __name__=='__main__': + parser = argparse.ArgumentParser(description='Build ttx fonts.') + parser.add_argument("-i", nargs=1, metavar="indir", default=["."], help="Input directory") + parser.add_argument("-o", nargs=1, metavar="outdir", default=["."], help="Output directory") + parser.add_argument("-n", action='store_true', help="Don't reformat the output.") + args = parser.parse_args() + in_dir = args.i[0] + out_dir = args.o[0] + no_reformat = args.n + file_list = build_file_list(in_dir) + font_name = None + for key, value in file_list.items(): + build_font(key, value, in_dir, out_dir, no_reformat) diff --git a/local/recipes/libs/cairo/source/test/svg/color.0.color0.svg b/local/recipes/libs/cairo/source/test/svg/color.0.color0.svg new file mode 100644 index 0000000000..650dca8984 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/color.0.color0.svg @@ -0,0 +1,4 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/color.1.color1.svg b/local/recipes/libs/cairo/source/test/svg/color.1.color1.svg new file mode 100644 index 0000000000..2858b35cac --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/color.1.color1.svg @@ -0,0 +1,4 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/color.2.foreground-solid.svg b/local/recipes/libs/cairo/source/test/svg/color.2.foreground-solid.svg new file mode 100644 index 0000000000..cf77d65a68 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/color.2.foreground-solid.svg @@ -0,0 +1,4 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/color.3.foreground-alpha.svg b/local/recipes/libs/cairo/source/test/svg/color.3.foreground-alpha.svg new file mode 100644 index 0000000000..fa67d4929c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/color.3.foreground-alpha.svg @@ -0,0 +1,4 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/color.4.foreground-linear.svg b/local/recipes/libs/cairo/source/test/svg/color.4.foreground-linear.svg new file mode 100644 index 0000000000..d2f8816c62 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/color.4.foreground-linear.svg @@ -0,0 +1,10 @@ + + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/color.5.foreground-linear-alpha.svg b/local/recipes/libs/cairo/source/test/svg/color.5.foreground-linear-alpha.svg new file mode 100644 index 0000000000..a3c453ad32 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/color.5.foreground-linear-alpha.svg @@ -0,0 +1,10 @@ + + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/color.6.foreground-radial.svg b/local/recipes/libs/cairo/source/test/svg/color.6.foreground-radial.svg new file mode 100644 index 0000000000..97622c2b49 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/color.6.foreground-radial.svg @@ -0,0 +1,10 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/color.7.foreground-radial-alpha.svg b/local/recipes/libs/cairo/source/test/svg/color.7.foreground-radial-alpha.svg new file mode 100644 index 0000000000..76d6628e02 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/color.7.foreground-radial-alpha.svg @@ -0,0 +1,10 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/doc.0.viewBox1.svg b/local/recipes/libs/cairo/source/test/svg/doc.0.viewBox1.svg new file mode 100644 index 0000000000..c1f55a4ebf --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/doc.0.viewBox1.svg @@ -0,0 +1,4 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/doc.1.viewBox2.svg b/local/recipes/libs/cairo/source/test/svg/doc.1.viewBox2.svg new file mode 100644 index 0000000000..b8f976ba94 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/doc.1.viewBox2.svg @@ -0,0 +1,4 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/doc.2.image.svg b/local/recipes/libs/cairo/source/test/svg/doc.2.image.svg new file mode 100644 index 0000000000..1d03842a9e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/doc.2.image.svg @@ -0,0 +1,121 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/doc.3.image-transform.svg b/local/recipes/libs/cairo/source/test/svg/doc.3.image-transform.svg new file mode 100644 index 0000000000..90e5ecb1a7 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/doc.3.image-transform.svg @@ -0,0 +1,122 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/doc.4.clip-user.svg b/local/recipes/libs/cairo/source/test/svg/doc.4.clip-user.svg new file mode 100644 index 0000000000..26cdd818a1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/doc.4.clip-user.svg @@ -0,0 +1,9 @@ + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/doc.5.clip-object.svg b/local/recipes/libs/cairo/source/test/svg/doc.5.clip-object.svg new file mode 100644 index 0000000000..7329115901 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/doc.5.clip-object.svg @@ -0,0 +1,10 @@ + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/doc.6.clip-user2.svg b/local/recipes/libs/cairo/source/test/svg/doc.6.clip-user2.svg new file mode 100644 index 0000000000..a68c1c42f3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/doc.6.clip-user2.svg @@ -0,0 +1,10 @@ + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/doc.7.clip-object2.svg b/local/recipes/libs/cairo/source/test/svg/doc.7.clip-object2.svg new file mode 100644 index 0000000000..f5c153dd1b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/doc.7.clip-object2.svg @@ -0,0 +1,11 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/doc.8.clip-user3.svg b/local/recipes/libs/cairo/source/test/svg/doc.8.clip-user3.svg new file mode 100644 index 0000000000..8ff61d593d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/doc.8.clip-user3.svg @@ -0,0 +1,15 @@ + + + + + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/doc.9.clip-object3.svg b/local/recipes/libs/cairo/source/test/svg/doc.9.clip-object3.svg new file mode 100644 index 0000000000..b291df79f4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/doc.9.clip-object3.svg @@ -0,0 +1,15 @@ + + + + + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/doc.A.g.svg b/local/recipes/libs/cairo/source/test/svg/doc.A.g.svg new file mode 100644 index 0000000000..bdaade7257 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/doc.A.g.svg @@ -0,0 +1,14 @@ + + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/fill.0.name.svg b/local/recipes/libs/cairo/source/test/svg/fill.0.name.svg new file mode 100644 index 0000000000..e377b88274 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/fill.0.name.svg @@ -0,0 +1,4 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/fill.1.hex6.svg b/local/recipes/libs/cairo/source/test/svg/fill.1.hex6.svg new file mode 100644 index 0000000000..04759d78a6 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/fill.1.hex6.svg @@ -0,0 +1,4 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/fill.2.hex3.svg b/local/recipes/libs/cairo/source/test/svg/fill.2.hex3.svg new file mode 100644 index 0000000000..9f9bce580e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/fill.2.hex3.svg @@ -0,0 +1,4 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/fill.3.rgb.svg b/local/recipes/libs/cairo/source/test/svg/fill.3.rgb.svg new file mode 100644 index 0000000000..c18b03bb5a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/fill.3.rgb.svg @@ -0,0 +1,4 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/fill.4.current-color.svg b/local/recipes/libs/cairo/source/test/svg/fill.4.current-color.svg new file mode 100644 index 0000000000..cf77d65a68 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/fill.4.current-color.svg @@ -0,0 +1,4 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/fill.5.palette.svg b/local/recipes/libs/cairo/source/test/svg/fill.5.palette.svg new file mode 100644 index 0000000000..53ea97512d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/fill.5.palette.svg @@ -0,0 +1,4 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/fill.6.opacity.svg b/local/recipes/libs/cairo/source/test/svg/fill.6.opacity.svg new file mode 100644 index 0000000000..59b4eb41fb --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/fill.6.opacity.svg @@ -0,0 +1,4 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/fill.7.color.svg b/local/recipes/libs/cairo/source/test/svg/fill.7.color.svg new file mode 100644 index 0000000000..745b2e8814 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/fill.7.color.svg @@ -0,0 +1,5 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/fill.8.rule.svg b/local/recipes/libs/cairo/source/test/svg/fill.8.rule.svg new file mode 100644 index 0000000000..366ff67601 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/fill.8.rule.svg @@ -0,0 +1,8 @@ + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/fuzzer/README b/local/recipes/libs/cairo/source/test/svg/fuzzer/README new file mode 100644 index 0000000000..4bb8d96541 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/fuzzer/README @@ -0,0 +1,19 @@ +libFuzzer based fuzzing for cairo-svg-glyph-render.c +==================================================== + +Build +----- +CC=clang CFLAGS="-DDEBUG_SVG_RENDER -g -fsanitize=fuzzer-no-link,address" meson -Db_lundef=false bld-fuzzer +ninja -C bld-fuzzer + + +Test +---- + ./bld-fuzzer/test/svg/fuzzer/svg-render-fuzzer + +where is a directory containing SVG files. + +If the fuzzer crashes, a crash-* file will be written. Run the +fuzzer with the crash file to reproduce the crash. + + ./bld-fuzzer/test/svg/fuzzer/svg-render-fuzzer diff --git a/local/recipes/libs/cairo/source/test/svg/fuzzer/meson.build b/local/recipes/libs/cairo/source/test/svg/fuzzer/meson.build new file mode 100644 index 0000000000..3e8f7b9439 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/fuzzer/meson.build @@ -0,0 +1,14 @@ +fuzz_targets = [ + 'svg-render-fuzzer' +] + +fuzz_args = ['-fsanitize=fuzzer,address'] + +foreach target_name : fuzz_targets + exe = executable(target_name, [target_name + '.c'], + include_directories: [incbase, incsrc], + c_args: [fuzz_args], + link_with: [libcairo], + link_args: [fuzz_args, extra_link_args], + dependencies: [deps, test_deps]) +endforeach diff --git a/local/recipes/libs/cairo/source/test/svg/fuzzer/svg-render-fuzzer.c b/local/recipes/libs/cairo/source/test/svg/fuzzer/svg-render-fuzzer.c new file mode 100644 index 0000000000..08eb79dd8b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/fuzzer/svg-render-fuzzer.c @@ -0,0 +1,57 @@ +/* + * Copyright © 2022 Uli Schlachter + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Uli Schlachter + */ + +#include +#include +#include +#include +#include + +cairo_bool_t +_cairo_debug_svg_render (cairo_t *cr, + const char *svg_document, + const char *element, + double units_per_em, + int debug_level); + +int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) +{ + cairo_surface_t *s = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 1); + cairo_t *cr = cairo_create(s); + + /* Get us a zero terminated string */ + const char *svg_document = strndup ((const char *) data, size); + + _cairo_debug_svg_render (cr, + svg_document, + NULL, + 1000, + 0); + free (svg_document); + cairo_destroy (cr); + cairo_surface_destroy (s); + return 0; +} diff --git a/local/recipes/libs/cairo/source/test/svg/gradient.0.lin-pad.svg b/local/recipes/libs/cairo/source/test/svg/gradient.0.lin-pad.svg new file mode 100644 index 0000000000..0ec54092f1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/gradient.0.lin-pad.svg @@ -0,0 +1,10 @@ + + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/gradient.1.lin-reflect.svg b/local/recipes/libs/cairo/source/test/svg/gradient.1.lin-reflect.svg new file mode 100644 index 0000000000..9e3e50cb94 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/gradient.1.lin-reflect.svg @@ -0,0 +1,11 @@ + + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/gradient.2.lin-repeat.svg b/local/recipes/libs/cairo/source/test/svg/gradient.2.lin-repeat.svg new file mode 100644 index 0000000000..1f023f5e1a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/gradient.2.lin-repeat.svg @@ -0,0 +1,11 @@ + + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/gradient.3.lin-user.svg b/local/recipes/libs/cairo/source/test/svg/gradient.3.lin-user.svg new file mode 100644 index 0000000000..fc90328f0d --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/gradient.3.lin-user.svg @@ -0,0 +1,11 @@ + + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/gradient.4.lin-transform.svg b/local/recipes/libs/cairo/source/test/svg/gradient.4.lin-transform.svg new file mode 100644 index 0000000000..bc8f5b6222 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/gradient.4.lin-transform.svg @@ -0,0 +1,10 @@ + + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/gradient.5.rad-pad.svg b/local/recipes/libs/cairo/source/test/svg/gradient.5.rad-pad.svg new file mode 100644 index 0000000000..b631ddc73a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/gradient.5.rad-pad.svg @@ -0,0 +1,10 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/gradient.6.rad-reflect.svg b/local/recipes/libs/cairo/source/test/svg/gradient.6.rad-reflect.svg new file mode 100644 index 0000000000..b6fea76be3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/gradient.6.rad-reflect.svg @@ -0,0 +1,11 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/gradient.7.rad-repeat.svg b/local/recipes/libs/cairo/source/test/svg/gradient.7.rad-repeat.svg new file mode 100644 index 0000000000..63d138d2a5 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/gradient.7.rad-repeat.svg @@ -0,0 +1,11 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/gradient.8.rad-user.svg b/local/recipes/libs/cairo/source/test/svg/gradient.8.rad-user.svg new file mode 100644 index 0000000000..e1d9c61f05 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/gradient.8.rad-user.svg @@ -0,0 +1,11 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/gradient.9.rad-transform.svg b/local/recipes/libs/cairo/source/test/svg/gradient.9.rad-transform.svg new file mode 100644 index 0000000000..4b90aaaf6b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/gradient.9.rad-transform.svg @@ -0,0 +1,11 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/meson.build b/local/recipes/libs/cairo/source/test/svg/meson.build new file mode 100644 index 0000000000..858e9d9cc5 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/meson.build @@ -0,0 +1,9 @@ +if librsvg_dep.found() + executable('svg-render', + 'svg-render.c', + dependencies: [libcairo_dep, librsvg_dep]) +endif + +if cc.links(files(meson.project_source_root() / 'meson-cc-tests/fuzzer.c'), args: '-fsanitize=fuzzer,address') + subdir('fuzzer') +endif diff --git a/local/recipes/libs/cairo/source/test/svg/path.0.line.svg b/local/recipes/libs/cairo/source/test/svg/path.0.line.svg new file mode 100644 index 0000000000..19d50914a2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/path.0.line.svg @@ -0,0 +1,8 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/path.1.curve.svg b/local/recipes/libs/cairo/source/test/svg/path.1.curve.svg new file mode 100644 index 0000000000..49c252ac8a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/path.1.curve.svg @@ -0,0 +1,9 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/path.2.quad.svg b/local/recipes/libs/cairo/source/test/svg/path.2.quad.svg new file mode 100644 index 0000000000..00a0dde575 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/path.2.quad.svg @@ -0,0 +1,8 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/path.3.arc.svg b/local/recipes/libs/cairo/source/test/svg/path.3.arc.svg new file mode 100644 index 0000000000..f177a72af8 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/path.3.arc.svg @@ -0,0 +1,7 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/shapes.0.rect.svg b/local/recipes/libs/cairo/source/test/svg/shapes.0.rect.svg new file mode 100644 index 0000000000..17db346498 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/shapes.0.rect.svg @@ -0,0 +1,3 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/shapes.1.rounded-rect.svg b/local/recipes/libs/cairo/source/test/svg/shapes.1.rounded-rect.svg new file mode 100644 index 0000000000..717470beeb --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/shapes.1.rounded-rect.svg @@ -0,0 +1,3 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/shapes.2.circle.svg b/local/recipes/libs/cairo/source/test/svg/shapes.2.circle.svg new file mode 100644 index 0000000000..3c07bad834 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/shapes.2.circle.svg @@ -0,0 +1,3 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/shapes.3.ellipse.svg b/local/recipes/libs/cairo/source/test/svg/shapes.3.ellipse.svg new file mode 100644 index 0000000000..67260a4045 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/shapes.3.ellipse.svg @@ -0,0 +1,3 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/shapes.4.line.svg b/local/recipes/libs/cairo/source/test/svg/shapes.4.line.svg new file mode 100644 index 0000000000..58de429472 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/shapes.4.line.svg @@ -0,0 +1,3 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/shapes.5.polyline.svg b/local/recipes/libs/cairo/source/test/svg/shapes.5.polyline.svg new file mode 100644 index 0000000000..0cc5c383c5 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/shapes.5.polyline.svg @@ -0,0 +1,12 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/shapes.6.polygon.svg b/local/recipes/libs/cairo/source/test/svg/shapes.6.polygon.svg new file mode 100644 index 0000000000..56bda07059 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/shapes.6.polygon.svg @@ -0,0 +1,12 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.0.name.svg b/local/recipes/libs/cairo/source/test/svg/stroke.0.name.svg new file mode 100644 index 0000000000..f2a9264752 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.0.name.svg @@ -0,0 +1,6 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.1.hex6.svg b/local/recipes/libs/cairo/source/test/svg/stroke.1.hex6.svg new file mode 100644 index 0000000000..89f2b1b382 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.1.hex6.svg @@ -0,0 +1,6 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.2.hex3.svg b/local/recipes/libs/cairo/source/test/svg/stroke.2.hex3.svg new file mode 100644 index 0000000000..a8565a7b61 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.2.hex3.svg @@ -0,0 +1,6 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.3.rgb.svg b/local/recipes/libs/cairo/source/test/svg/stroke.3.rgb.svg new file mode 100644 index 0000000000..42e7514e49 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.3.rgb.svg @@ -0,0 +1,6 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.4.current-color.svg b/local/recipes/libs/cairo/source/test/svg/stroke.4.current-color.svg new file mode 100644 index 0000000000..9d645b8813 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.4.current-color.svg @@ -0,0 +1,6 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.5.palette.svg b/local/recipes/libs/cairo/source/test/svg/stroke.5.palette.svg new file mode 100644 index 0000000000..1262a7ba0a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.5.palette.svg @@ -0,0 +1,6 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.6.opacity.svg b/local/recipes/libs/cairo/source/test/svg/stroke.6.opacity.svg new file mode 100644 index 0000000000..b84d1bdc97 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.6.opacity.svg @@ -0,0 +1,6 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.7.color.svg b/local/recipes/libs/cairo/source/test/svg/stroke.7.color.svg new file mode 100644 index 0000000000..952f482615 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.7.color.svg @@ -0,0 +1,7 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.8.width.svg b/local/recipes/libs/cairo/source/test/svg/stroke.8.width.svg new file mode 100644 index 0000000000..bb9edea905 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.8.width.svg @@ -0,0 +1,14 @@ + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.9.cap.svg b/local/recipes/libs/cairo/source/test/svg/stroke.9.cap.svg new file mode 100644 index 0000000000..35046446c2 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.9.cap.svg @@ -0,0 +1,17 @@ + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.A.dash.svg b/local/recipes/libs/cairo/source/test/svg/stroke.A.dash.svg new file mode 100644 index 0000000000..2be5a1d909 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.A.dash.svg @@ -0,0 +1,27 @@ + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.B.dash-offset.svg b/local/recipes/libs/cairo/source/test/svg/stroke.B.dash-offset.svg new file mode 100644 index 0000000000..f7623ea841 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.B.dash-offset.svg @@ -0,0 +1,31 @@ + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.C.miter.svg b/local/recipes/libs/cairo/source/test/svg/stroke.C.miter.svg new file mode 100644 index 0000000000..1dc4ee6a72 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.C.miter.svg @@ -0,0 +1,10 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.D.round.svg b/local/recipes/libs/cairo/source/test/svg/stroke.D.round.svg new file mode 100644 index 0000000000..3e4c6236f9 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.D.round.svg @@ -0,0 +1,10 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.E.bevel.svg b/local/recipes/libs/cairo/source/test/svg/stroke.E.bevel.svg new file mode 100644 index 0000000000..25d9e38034 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.E.bevel.svg @@ -0,0 +1,10 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/stroke.F.miter-limit.svg b/local/recipes/libs/cairo/source/test/svg/stroke.F.miter-limit.svg new file mode 100644 index 0000000000..14357f0b47 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/stroke.F.miter-limit.svg @@ -0,0 +1,11 @@ + + + diff --git a/local/recipes/libs/cairo/source/test/svg/svg-font-template.ttx b/local/recipes/libs/cairo/source/test/svg/svg-font-template.ttx new file mode 100644 index 0000000000..715074ddaf --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/svg-font-template.ttx @@ -0,0 +1,190 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Cairo Font Template + + + Regular + + + Cairo Font Template Regular + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + <svg xmlns="http://www.w3.org/2000/svg"></svg> + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/svg-render.c b/local/recipes/libs/cairo/source/test/svg/svg-render.c new file mode 100644 index 0000000000..8f67ebdc22 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/svg-render.c @@ -0,0 +1,308 @@ +/* + * Copyright © 2016 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson + */ + +/* Compilation: + * Build cairo with -DDEBUG_SVG_RENDER + * gcc -o svg-render svg-render.c `pkg-config --cflags --libs cairo librsvg` + */ + +/* svg-render - render SVG files using both the cairo glyph renderer and librsvg. + * + * This allows testing the cairo SVG test cases before assembling them into an SVG font. + * Usage: + * svg-render [-b] [-s] [-g ] [-e ] input.svg + * + * Output is written to input.cairo.png and input.rsvg.png. + * + * -b print bounding box. + * -s Use standard SVG viewport. See below. + * -g render glyph with id + * -e set the EM size. The default is 1000. + * + * SVG Glyphs are assumed to be wholely within the view port. + */ + +#include +#include +#include +#include + +typedef enum { CAIRO_SVG, LIBRSVG } svg_renderer_t; + +/* output image size */ +#define WIDTH 1000 +#define HEIGHT 1000 + +static cairo_bool_t bbox = FALSE; +static cairo_bool_t standard_svg = FALSE; +static const char *glyph_id = NULL; +static int em_size = 1000; + +cairo_bool_t +_cairo_debug_svg_render (cairo_t *cr, + const char *svg_document, + const char *element, + double units_per_em, + int debug_level); + +static void +cairo_render (const char *svg_document, cairo_t *cr) +{ + if (!_cairo_debug_svg_render (cr, svg_document, glyph_id, em_size, 2)) + printf("_cairo_debug_svg_render() failed\n"); +} + +static void +librsvg_render (const char *svg_document, cairo_t *cr) +{ + gboolean has_width; + gboolean has_height; + gboolean has_viewbox; + RsvgLength svg_width; + RsvgLength svg_height; + RsvgRectangle svg_viewbox; + RsvgRectangle viewport; + double width, height; + GError *error = NULL; + + RsvgHandle *handle = rsvg_handle_new_from_data ((guint8 *)svg_document, + strlen(svg_document), + &error); + if (!handle) { + printf ("Could not load: %s", error->message); + return; + } + + /* Default width if not specified is EM Square */ + width = em_size; + height = em_size; + + /* Get width/height if specified. */ + rsvg_handle_get_intrinsic_dimensions(handle, + &has_width, + &svg_width, + &has_height, + &svg_height, + &has_viewbox, + &svg_viewbox); + if (has_width) + width = svg_width.length; + + if (has_height) + height = svg_height.length; + + /* We set the viewport for the call rsvg_handle_render_layer() to + * width/height. That way if either dimension is not specified in + * the SVG it will be inherited from the viewport we provide. + * + * As this scales up the rendered dimensions by width/height we + * need to undo this scaling to get a unit square scale that + * matches the cairo SVG renderer scale. The OpenType SVG spec + * does not say what to do if width != height. In this case we + * will just use a uniform scale that ensures the viewport fits in + * the unit square and also center it. + */ + + if (width > height) { + cairo_scale (cr, 1.0/width, 1.0/width); + cairo_translate (cr, 0, (width - height)/2.0); + } else { + cairo_scale (cr, 1.0/height, 1.0/height); + cairo_translate (cr, (height - width)/2.0, 0); + } + + viewport.x = 0; + viewport.y = 0; + viewport.width = width; + viewport.height = height; + if (!rsvg_handle_render_layer (handle, cr, glyph_id, &viewport, &error)) { + printf ("librsvg render failed: %s", error->message); + return; + } +} + +static void +render_svg (const char *svg_document, svg_renderer_t renderer, const char* out_file) +{ + double x, y, w, h; + + cairo_surface_t *recording = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL); + cairo_t *cr = cairo_create (recording); + + /* Scale up to image size when recording to reduce rounding errors + * in cairo_recording_surface_ink_extents() + */ + cairo_scale (cr, WIDTH, HEIGHT); + + if (renderer == CAIRO_SVG) { + cairo_render (svg_document, cr); + } else { + librsvg_render (svg_document, cr); + } + cairo_destroy (cr); + + if (bbox) { + cairo_recording_surface_ink_extents (recording, &x, &y, &w, &h); + if (renderer == CAIRO_SVG) + printf("cairo "); + else + printf("librsvg"); + + printf(" bbox left: %d right: %d top: %d bottom: %d\n", + (int)floor(x), + (int)ceil(x + w), + (int)floor(y), + (int)ceil(y + h)); + } + + cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, WIDTH, HEIGHT); + cr = cairo_create (surface); + + /* If rendering a glyph need to translate base line to bottom of image */ + if (standard_svg) + cairo_set_source_surface (cr, recording, 0, 0); + else + cairo_set_source_surface (cr, recording, 0, HEIGHT); + + cairo_paint (cr); + + cairo_surface_write_to_png (surface, out_file); + cairo_surface_destroy (surface); +} + +static char * +create_output_name (const char *svg_file, svg_renderer_t renderer) +{ + char buf[1000]; + int len; + + strcpy (buf, svg_file); + len = strlen (buf); + + if (strlen (buf) > 5 && strcmp (buf + len - 4, ".svg") == 0) + buf[len - 4] = 0; + + if (renderer == CAIRO_SVG) + strcat (buf, ".cairo.png"); + else + strcat (buf, ".rsvg.png"); + + return strdup (buf); +} + +static char * +read_file(const char *filename) +{ + FILE *fp; + int len; + char *data; + + fp = fopen (filename, "r"); + if (fp == NULL) + return NULL; + + fseek (fp, 0, SEEK_END); + len = ftell(fp); + rewind (fp); + data = malloc (len + 1); + if (fread(data, len, 1, fp) != 1) + return NULL; + data[len] = 0; + fclose(fp); + return data; +} + +static void +usage_and_exit() +{ + printf ("svg-render [-b] [-s] [-g ] [-e ] input.svg\n"); + exit (1); +} + +int +main(int argc, char **argv) +{ + const char *input_file = NULL; + char *svg_document; + char *output_file; + + argc--; + argv++; + while (argc > 0) { + if (strcmp (argv[0], "-b") == 0) { + bbox = TRUE; + argc--; + argv++; + } else if (strcmp (argv[0], "-s") == 0) { + standard_svg = TRUE; + argc--; + argv++; + } else if (strcmp (argv[0], "-g") == 0) { + if (argc > 1) { + glyph_id = argv[1]; + argc -= 2; + argv += 2; + } else { + usage_and_exit(); + } + } else if (strcmp (argv[0], "-e") == 0) { + if (argc > 1) { + em_size = atoi (argv[1]); + if (em_size <= 0) { + usage_and_exit(); + } + argc -= 2; + argv += 2; + } else { + usage_and_exit(); + } + } else { + input_file = argv[0]; + argc--; + argv++; + } + } + if (!input_file) + usage_and_exit(); + + svg_document = read_file (input_file); + if (!svg_document) { + printf("error reading file %s\n", input_file); + exit (1); + } + + output_file = create_output_name (input_file, CAIRO_SVG); + render_svg (svg_document, CAIRO_SVG, output_file); + free (output_file); + + output_file = create_output_name (input_file, LIBRSVG); + render_svg (svg_document, LIBRSVG, output_file); + free (output_file); + + free (svg_document); + + return 0; +} diff --git a/local/recipes/libs/cairo/source/test/svg/transform.0.translate.svg b/local/recipes/libs/cairo/source/test/svg/transform.0.translate.svg new file mode 100644 index 0000000000..5d9555673f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/transform.0.translate.svg @@ -0,0 +1,8 @@ + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/transform.1.scale.svg b/local/recipes/libs/cairo/source/test/svg/transform.1.scale.svg new file mode 100644 index 0000000000..b7742fc806 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/transform.1.scale.svg @@ -0,0 +1,10 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/transform.2.rotate.svg b/local/recipes/libs/cairo/source/test/svg/transform.2.rotate.svg new file mode 100644 index 0000000000..926ae63fc4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/transform.2.rotate.svg @@ -0,0 +1,10 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/transform.3.skewX.svg b/local/recipes/libs/cairo/source/test/svg/transform.3.skewX.svg new file mode 100644 index 0000000000..f7555534d4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/transform.3.skewX.svg @@ -0,0 +1,10 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/transform.4.skewY.svg b/local/recipes/libs/cairo/source/test/svg/transform.4.skewY.svg new file mode 100644 index 0000000000..cd62c8a8a8 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/transform.4.skewY.svg @@ -0,0 +1,10 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/transform.5.matrix.svg b/local/recipes/libs/cairo/source/test/svg/transform.5.matrix.svg new file mode 100644 index 0000000000..643fbe36ba --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/transform.5.matrix.svg @@ -0,0 +1,10 @@ + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/transform.6.multiple.svg b/local/recipes/libs/cairo/source/test/svg/transform.6.multiple.svg new file mode 100644 index 0000000000..90c7b3054f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/transform.6.multiple.svg @@ -0,0 +1,16 @@ + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg/transform.7.stroke.svg b/local/recipes/libs/cairo/source/test/svg/transform.7.stroke.svg new file mode 100644 index 0000000000..f56b24dfe7 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg/transform.7.stroke.svg @@ -0,0 +1,20 @@ + + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/test/svg2png.c b/local/recipes/libs/cairo/source/test/svg2png.c new file mode 100644 index 0000000000..5dfbf62ec1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/svg2png.c @@ -0,0 +1,88 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2005 Emmanuel Pacaud + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Kristian Høgsberg + * Emmanuel Pacaud + */ + +#include +#include + +/* Disable deprecation warnings coming from librsvg */ +#define RSVG_DISABLE_DEPRECATION_WARNINGS +#include + +#define FAIL(msg) \ + do { fprintf (stderr, "FAIL: %s\n", msg); exit (-1); } while (0) + +int main (int argc, char *argv[]) +{ + GError *error = NULL; + RsvgHandle *handle; + RsvgDimensionData dimensions; + const char *filename = argv[1]; + const char *output_filename = argv[2]; + cairo_surface_t *surface; + cairo_t *cr; + cairo_status_t status; + + if (argc != 3) + FAIL ("usage: svg2png input_file.svg output_file.png"); + + #if GLIB_MAJOR_VERSION <= 2 && GLIB_MINOR_VERSION <= 34 + g_type_init (); + #endif + + error = NULL; + + handle = rsvg_handle_new_from_file (filename, &error); + if (!handle) + FAIL (error->message); + + rsvg_handle_set_dpi (handle, 72.0); + rsvg_handle_get_dimensions (handle, &dimensions); + + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + dimensions.width, dimensions.height); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 1,1,1); + cairo_paint (cr); + cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR_ALPHA); + + if (!rsvg_handle_render_cairo (handle, cr)) + FAIL (error->message); + + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + status = cairo_surface_write_to_png (cairo_get_target (cr), + output_filename); + cairo_destroy (cr); + if (status) + FAIL (cairo_status_to_string (status)); + + g_object_unref (handle); + return 0; +} diff --git a/local/recipes/libs/cairo/source/test/testsvg b/local/recipes/libs/cairo/source/test/testsvg new file mode 100755 index 0000000000..9b18df5863 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/testsvg @@ -0,0 +1,51 @@ +#!/bin/sh + +IMAGEDIFF=./imagediff + +OUTDIR=testsvg-output +REFDIR=testsvg-reference +DIFFDIR=testsvg-diff +IMAGELIST=testsvg-imagelist + +if [ $# -lt 1 ]; then + argv0=`basename $0` + echo "Usage: $argv0 file.svg [...]" >&2 + exit 1; +fi + +mkdir -p $OUTDIR +mkdir -p $DIFFDIR +rm -f $IMAGELIST + +err=0 +for svg in $@; do + svgbase=`basename $svg` + png=${svgbase/\.svg/.png} + outpng=$OUTDIR/$png + refpng=$REFDIR/$png + diffpng=$DIFFDIR/$png +# if xsvg $svg -p $outpng ; then + if svg2png $svg $outpng ; then + if [ -e $refpng ]; then + if $IMAGEDIFF $refpng $outpng > $diffpng; then + echo "Rendering of $svg matches." >&2 + rm -f $diffpng + else + echo "ERROR: Rendering of $svg differs from reference image." >&2 + echo $refpng $outpng $diffpng >> $IMAGELIST + err=$(($err+1)) + fi + else + echo "WARNING: No reference file found for $svg (looked in $refpng)" >&2 + fi + else + echo "ERROR: Failed to render $svg" >&2 + err=$(($err+1)) + fi +done + +if [ $err -gt 0 ] ; then + echo "Differences found in $err renderings." +else + echo "All renderings matched reference images." +fi diff --git a/local/recipes/libs/cairo/source/test/testtable.js b/local/recipes/libs/cairo/source/test/testtable.js new file mode 100644 index 0000000000..4fc664ff2a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/testtable.js @@ -0,0 +1,428 @@ +/* configuration */ +/* TODO: UNTESTED count can't be shown because it's not tracked explicitly */ +headerResults = [ "PASS", "NEW", "FAIL", "XFAIL", "CRASHED" ]; +logResults = [ "PASS", "NEW", "FAIL", "XFAIL", "CRASH!" ]; +resultToImgs = { + "PASS" : [], + "NEW" : [ "output" ], + "FAIL" : [ "output", "difference", "reference" ], + "XFAIL" : [], + "UNTESTED" : [], + "CRASHED" : [] +}; + +resultToString = { + "PASS" : "", + "NEW" : "", + "FAIL" : "", + "XFAIL" : "", + "UNTESTED" : "", + "CRASHED" : "CRASHED!" +}; + +resultField = "result"; +rowFields = [ "test", "offset", "scale", "similar" ]; +colFields = [ "target", "format" ]; +allFields = [ resultField ].concat (rowFields, colFields); + + +/* globals: */ +function resetGlobals () { + dragElement = undefined; + table = document.getElementById ("testTable"); + while (table.rows.length) + table.deleteRow (0); + colsArray = [ "HrowHeader" ]; + colsMap = undefined; + headerId = "HcolHeader"; + + fTrue = function (x) { return true; }; + + empty = new Row (); + header = new Row (); + header[colsArray[0]].toString = function () { return ""; }; + + untested = new Test (); + untested[resultField] = "UNTESTED"; +} + + +/* utility functions */ +function isKey (key) { return key[key.length-1] == ':'; } +function normalizeKey (key) { return key.toLowerCase ().replace (/[^a-z0-9]/, ""); } +function isVisible (x) { return x.style.display != "none"; } + +function link (html, url) { return "" + html + ""; } +function image (url) { return ""; } +function span (html, id, cls) { return "" + html + ""; } + +function fieldsToHTML (bColumns, values) { + var fields = bColumns ? colFields : rowFields; + var prefix = bColumns ? "c" : "r"; + var tmpRE = arrayApply (function (x) { return "[^/]*"; }, fields); + var r = Array (); + for (var i = 0; i < fields.length; i++) + if (fields[i] == "test") { + r.push (link (values[fields[i]], "output/" + values[fields[i]] + ".log")); + } else { + tmpRE[i] = values[fields[i]]; + r.push (span (values[fields[i]], prefix + "/" + tmpRE.join ("/") + "/", fields[i])); + tmpRE[i] = "[^/]*"; + } + return r.join ("/"); +} + +function inArray (value, array) { + for (var i = 0; i < array.length; i++) + if (value == array[i]) + return true; + return false; +} + +function arrayApply (fun, array) { + var r = new Array (); + for (var i = 0; i < array.length; i++) + r.push (fun(array[i])); + return r; +} + +function arrayPred (pred, array) { + var r = new Array (); + for (var i = 0; i < array.length; i++) + if (pred (array[i])) + r.push (array[i]); + return r; +} + +function arrayMap (map, array) { return arrayApply (function (x) { return map[x]; }, array); } + +function binSearch (rows, newId){ + var min = 0; + var max = rows.length; + + while (max - min > 1) { + var mid = (max + min) >> 1; + if (rows[mid].id > newId) + max = mid; + else + min = mid; + } + + if (max == min) + return max; + else + return rows[min].id > newId ? min : max; +} + +/* dynamic table utils */ +function updateCurrent () { + for (var i = 0; i < table.rows.length; i++) { + var row = table.rows[i]; + if (isVisible (row)) { + /* j starts from 1 because we want to ignore _rowHeader */ + for (var j = 1; j < row.cells.length; j++) + if (row.id[0] == "H") + for (var k = 0; k < headerResults.length; k++) + header[row.cells[j].id].current[headerResults[k]] = 0; + else if (isVisible (row.cells[j])) + header[row.cells[j].id].current[row.cells[j].className]++; + } + } + + updateHeader (); +} + +function setVisible (array, subsetPred, visibilityPred, visibleFlag) { + var modified = false, somethingVisible = false; + for (var i = 0; i < array.length; i++) + if (array[i].id[0] != "H") { + if (subsetPred (array[i])) { + var wanted = visibilityPred (array[i]); + if (isVisible (array[i]) != wanted) { + modified = true; + array[i].style.display = wanted ? visibleFlag : "none"; + } + } + somethingVisible = somethingVisible || isVisible (array[i]); + } + return modified && somethingVisible; +} + +function setVisibleOnly (array, pred, visibleFlag) { + return setVisible (array, fTrue, pred, visibleFlag); +} + +function flipVisible (array, subsetPred, visibleFlag) { + return setVisible (array, subsetPred, function (x) { return !isVisible (x); }, visibleFlag); +} + + +/* event handling */ +function ignoreEvent (event) { + if (event.preventDefault) + event.preventDefault(); + else + event.returnValue= false; + return false; +} + +function mouseUp (event) { + var visFun; + if (event.button == 0) + visFun = setVisibleOnly; + else if (event.button == 2) + visFun = flipVisible; + else + return false; + + var structureFun; + if (event.target.id[0] == "r") /* rows */ + structureFun = function (f, p) { return f (table.rows, p, "table-row"); }; + else if (event.target.id[0] == "c") /* cols */ + structureFun = function (f, p) { return inArray (true, arrayApply (function (row) { return f (row.cells, p, "table-cell") }, table.rows)) }; + else + return false; + + var pred; + if (event.target.id[1] == "/") { /* regexp */ + var re = new RegExp (event.target.id); + pred = function (x) { return re.test (x.id); }; + } else if (event.target.id[1] == "#") { /* counters */ + var s = event.target.id.substr (2).split ("/"); + pred = function (row) { return row.cells[s[0]].className == s[1]; } + } else + return false; + + if (!structureFun (visFun, pred)) + if (!structureFun (flipVisible, fTrue)) + structureFun (flipVisible, fTrue); + + updateCurrent (); + + return false; +} + +function noDrag (event) { + dragElement = undefined; + return false; +} + +function startDrag (event) { + if (event.button == 0) + dragElement = event.target; + else + dragElement = undefined; + return false; +} + +function endDrag (event) { + if (!dragElement) + return false; + + if (event.currentTarget.id == colsArray[0] && + inArray (dragElement.className, colFields)) { + rowFields.push (dragElement.className); + colFields = arrayPred (function (x) { return x != dragElement.className; }, colFields); + } else if (event.currentTarget.id == headerId && + inArray (dragElement.className, rowFields)) { + colFields.push (dragElement.className); + rowFields = arrayPred (function (x) { return x != dragElement.className; }, rowFields); + } else + return true; + + reloadAll (); + return false; +} + + +/* table content */ +function Row (id, t) { + this[colsArray[0]] = new RowHeader (id, t); + + this.get = function (c) { return this[c] != undefined ? this[c] : untested; } + this.getHTML = function (c) { return this.get(c).toString (); }; + this.setStyle = function (c, element) { return this.get(c).setStyle (element); }; +} + +function ColumnHeader (id, values) { + this.id = id; + this.values = values; + this.total = new Object (); + this.current = new Object (); + + for (var i = 0; i < headerResults.length; i++) { + this.total[headerResults[i]] = 0; + this.current[headerResults[i]] = 0; + } + + this.toString = function () { + var counts = new Array (); + for (var i = 0; i < headerResults.length; i++) { + var hr = headerResults[i]; + var s = span (this.current[hr], "r#" + colsMap[this.id] + "/" + hr, hr); + if (this.current[hr] != this.total[hr]) + s += span ("[" + this.total[hr] + "]", "r#" + colsMap[this.id] + "/" + hr, hr); + counts.push (s); + } + + return fieldsToHTML (true, this.values) + "
    " + counts.join ("/"); + } + + this.setStyle = function (element) { }; +} + +function RowHeader (id, values) { + this.id = id; + this.values = values; + this.toString = function () { return fieldsToHTML (false, this.values); } + this.setStyle = function (element) { element.onmouseup = endDrag; }; +} + +function Test () { + this.rowId = function () { return "r/" + arrayMap (this, rowFields).join("/") + "/"; }; + this.colId = function () { return "c/" + arrayMap (this, colFields).join("/") + "/"; }; + this.isComplete = function () { return !inArray (undefined, arrayMap (this, allFields)); } + this.toString = function () { + var images = arrayMap (this, resultToImgs[this[resultField]]); + images = arrayPred (function (x) { return x != undefined; }, images); + images = arrayApply (function (x) { return link (image (x), x); }, images); + images.push (resultToString[this[resultField]]); + return images.join (" "); + }; + + this.setStyle = function (element) { element.className = this[resultField]; }; + + this.addData = function (array) { + for (var i = 0; i < array.length - 1; i += 2) + if (isKey (array[i])) + this[normalizeKey (array[i])] = array[i+1]; + }; +} + + +/* table creation */ +function insertCell (domRow, nid, tests) { + var domCell = domRow.insertCell (nid); + domCell.id = colsArray[nid]; + domCell.innerHTML = tests.getHTML (colsArray[nid]); + tests.setStyle (colsArray[nid], domCell); +} + +function updateRow (row, tests) { + var domRow = document.getElementById (row); + if (!domRow) { + domRow = table.insertRow (binSearch (table.rows, row)); + domRow.id = row; + } + + for (var i = 0; i < colsArray.length; i++) + if (i >= domRow.cells.length || domRow.cells[i].id != colsArray[i]) + insertCell (domRow, i, tests); +} + +function updateHeader () { + var visibility; + var domRow = document.getElementById (headerId); + if (domRow) { + visibility = new Object (); + for (var i = 0; i < domRow.cells.length; i++) + visibility[domRow.cells[i].id] = domRow.cells[i].style.display; + table.deleteRow (domRow.rowIndex); + } + + updateRow (headerId, header); + table.rows[0].onmouseup = endDrag; + + if (visibility) + for (var i = 0; i < colsArray.length; i++) + if (visibility[colsArray[i]]) + table.rows[0].cells[colsMap[colsArray[i]]].style.display = visibility[colsArray[i]]; +} + +function updateTable () { + colsArray.sort (); + + colsMap = new Object (); + for (var i = 0; i < colsArray.length; i++) + colsMap[colsArray[i]] = i; + + updateHeader (); + for (var i = 0; i < table.rows.length; i++) + updateRow (table.rows[i].id, empty); +} + + +/* log file parsing */ +function parseTest (testData) { + var colsChanged = false; + var rows = new Array (); + var data = new Object (); + var t = new Test (); + var lines = testData.replace (/\r/g, "").split ("\n"); + for (var i = 0; i < lines.length; i++) { + t.addData (lines[i].split (" ")); + if (t.isComplete ()) { + var c = t.colId (); + if (header[c] == undefined) { + colsArray.push (c); + header[c] = new ColumnHeader (c, t); + colsChanged = true; + } + + var r = t.rowId (); + if (!data[r]) { + rows.push (r); + data[r] = new Row (r, t); + } + + data[r][c] = t; + header[c].total[t[resultField]]++; + header[c].current[t[resultField]]++; + t = new Test (); + } + } + + if (colsChanged) + updateTable (); + else + updateHeader (); + + for (var i = 0; i < rows.length; i++) + updateRow (rows[i], data[rows[i]]); +} + +function parseFile (fileName, parser) { + var req = new XMLHttpRequest (); + req.onreadystatechange = function () { + if (req.readyState == 4) + parser (req.responseText); + } + + try { + req.open ("GET", fileName); + req.send (null); + } catch (e) {} +} + +function parseTestList (listData) { + var summaryRE = /\d+ Passed, \d+ Failed \x5b\d+ crashed, \d+ expected\x5d, \d+ Skipped/; + var lines = listData.replace (/\r/g, "").split ("\n"); + for (var i = 0; i < lines.length; i++) { + if (summaryRE.test (lines[i])) + return; + + var words = lines[i].split (" "); + if (words.length >= 2 && + words[0][words[0].length-1] == ":" && + inArray (words[1], logResults)) + parseFile ("output/" + words[0].substr (0, words[0].length-1) + ".log", parseTest); + } +} + +function reloadAll() { + resetGlobals (); + + parseFile ("cairo-test-suite.log", parseTestList); +} + +window.onload = reloadAll; diff --git a/local/recipes/libs/cairo/source/test/text-antialias-subpixel.c b/local/recipes/libs/cairo/source/test/text-antialias-subpixel.c new file mode 100644 index 0000000000..6a65059ebe --- /dev/null +++ b/local/recipes/libs/cairo/source/test/text-antialias-subpixel.c @@ -0,0 +1,123 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * Copyright © 2011 Uli Schlachter + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Uli Schlachter + * + * Based on test/text-antialias.c + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define WIDTH 31 +#define HEIGHT 22 +#define TEXT_SIZE 12 + +static cairo_test_status_t +draw (cairo_t *cr, cairo_subpixel_order_t order) +{ + cairo_text_extents_t extents; + cairo_font_options_t *font_options; + const char black[] = "black", blue[] = "blue"; + + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + + font_options = cairo_font_options_create (); + cairo_get_font_options (cr, font_options); + cairo_font_options_set_antialias (font_options, CAIRO_ANTIALIAS_SUBPIXEL); + cairo_font_options_set_subpixel_order (font_options, order); + cairo_set_font_options (cr, font_options); + + cairo_font_options_destroy (font_options); + + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + cairo_text_extents (cr, black, &extents); + cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing); + cairo_show_text (cr, black); + cairo_translate (cr, 0, -extents.y_bearing + 1); + + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_text_extents (cr, blue, &extents); + cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing); + cairo_show_text (cr, blue); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_rgb (cairo_t *cr, int width, int height) +{ + return draw (cr, CAIRO_SUBPIXEL_ORDER_RGB); +} + +static cairo_test_status_t +draw_bgr (cairo_t *cr, int width, int height) +{ + return draw (cr, CAIRO_SUBPIXEL_ORDER_BGR); +} + +static cairo_test_status_t +draw_vrgb (cairo_t *cr, int width, int height) +{ + return draw (cr, CAIRO_SUBPIXEL_ORDER_VRGB); +} + +static cairo_test_status_t +draw_vbgr (cairo_t *cr, int width, int height) +{ + return draw (cr, CAIRO_SUBPIXEL_ORDER_VBGR); +} + +CAIRO_TEST (text_antialias_subpixel_rgb, + "Tests text rendering with rgb subpixel antialiasing", + "text", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw_rgb) + +CAIRO_TEST (text_antialias_subpixel_bgr, + "Tests text rendering with bgr subpixel antialiasing", + "text", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw_bgr) + +CAIRO_TEST (text_antialias_subpixel_vrgb, + "Tests text rendering with vertical rgb subpixel antialiasing", + "text", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw_vrgb) + +CAIRO_TEST (text_antialias_subpixel_vbgr, + "Tests text rendering with vertical bgr subpixel antialiasing", + "text", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw_vbgr) diff --git a/local/recipes/libs/cairo/source/test/text-antialias.c b/local/recipes/libs/cairo/source/test/text-antialias.c new file mode 100644 index 0000000000..7d338925e6 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/text-antialias.c @@ -0,0 +1,106 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define WIDTH 31 +#define HEIGHT 22 +#define TEXT_SIZE 12 + +static cairo_test_status_t +draw (cairo_t *cr, cairo_antialias_t antialias) +{ + cairo_text_extents_t extents; + cairo_font_options_t *font_options; + const char black[] = "black", blue[] = "blue"; + + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + + font_options = cairo_font_options_create (); + cairo_get_font_options (cr, font_options); + cairo_font_options_set_antialias (font_options, antialias); + cairo_font_options_set_subpixel_order (font_options, CAIRO_SUBPIXEL_ORDER_RGB); + cairo_set_font_options (cr, font_options); + + cairo_font_options_destroy (font_options); + + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + cairo_text_extents (cr, black, &extents); + cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing); + cairo_show_text (cr, black); + cairo_translate (cr, 0, -extents.y_bearing + 1); + + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_text_extents (cr, blue, &extents); + cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing); + cairo_show_text (cr, blue); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_gray (cairo_t *cr, int width, int height) +{ + return draw (cr, CAIRO_ANTIALIAS_GRAY); +} + +static cairo_test_status_t +draw_none (cairo_t *cr, int width, int height) +{ + return draw (cr, CAIRO_ANTIALIAS_NONE); +} + +static cairo_test_status_t +draw_subpixel (cairo_t *cr, int width, int height) +{ + return draw (cr, CAIRO_ANTIALIAS_SUBPIXEL); +} + +CAIRO_TEST (text_antialias_gray, + "Tests text rendering with grayscale antialiasing", + "text", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw_gray) + +CAIRO_TEST (text_antialias_none, + "Tests text rendering with no antialiasing", + "text", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw_none) + +CAIRO_TEST (text_antialias_subpixel, + "Tests text rendering with subpixel antialiasing", + "text", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw_subpixel) diff --git a/local/recipes/libs/cairo/source/test/text-cache-crash.c b/local/recipes/libs/cairo/source/test/text-cache-crash.c new file mode 100644 index 0000000000..6b6fe361c3 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/text-cache-crash.c @@ -0,0 +1,93 @@ +/* + * Copyright © 2004 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +/* Bug history + * + * 2004-11-04 Ned Konz + * + * Reported bug on mailing list: + * + * From: Ned Konz + * To: cairo@cairographics.org + * Date: Thu, 4 Nov 2004 09:49:38 -0800 + * Subject: [cairo] getting assertions [cairo_cache.c:143: _entry_destroy: + * Assertion `cache->used_memory > entry->memory' failed] + * + * The attached program dies on me with the assert + * + * $ ./testCairo + * testCairo: cairo_cache.c:143: _entry_destroy: Assertion `cache->used_memory > entry->memory' failed. + * + * 2004-11-04 Carl Worth + * + * I trimmed down Ned's example to the following test while still + * maintaining the assertion. + * + * Oh, actually, it looks like I may have triggered something + * slightly different: + * + * text_cache_crash: cairo_cache.c:422: _cairo_cache_lookup: Assertion `cache->max_memory >= (cache->used_memory + new_entry->memory)' failed. + * + * I'll have to go back and try the original test after I fix this. + * + * 2004-11-13 Carl Worth + * + * Found the bug. cairo_gstate_select_font was noticing when the + * same font was selected twice in a row and was erroneously failing + * to free the old reference. Committed a fix and verified it also + * fixed the original test case. + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* Once there was a bug that choked when selecting the same font twice. */ + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD); + cairo_set_font_size (cr, 40.0); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD); + cairo_set_font_size (cr, 40.0); + cairo_move_to (cr, 10, 50); + cairo_show_text (cr, "hello"); + + /* Then there was a bug that choked when selecting a font too big + * for the cache. */ + + cairo_set_font_size (cr, 500); + cairo_show_text (cr, "hello"); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (text_cache_crash, + "Test case for bug causing an assertion failure in _cairo_cache_lookup", + "text, stress", /* keywords */ + NULL, /* requirements */ + 0, 0, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/text-glyph-range.c b/local/recipes/libs/cairo/source/test/text-glyph-range.c new file mode 100644 index 0000000000..75b87d63a5 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/text-glyph-range.c @@ -0,0 +1,125 @@ +/* -*- Mode: c; c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t; -*- */ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006 Brian Ewins. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Brian Ewins not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Brian Ewins makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * BRIAN EWINS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL BRIAN EWINS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Brian Ewins + */ + +/* Related to bug 9530 + * + * cairo_glyph_t can contain any unsigned long in its 'index', the intention + * being that it is large enough to hold a pointer. However, this means that + * it can specify many glyph indexes which don't exist in the font, and may + * exceed the range of legal glyph indexes for the font backend. It may + * also contain special values that are not usable as indexes - e.g. 0xffff is + * kATSDeletedGlyphcode in ATSUI, a glyph that should not be drawn. + * The font backends should handle all legal and out-of-range values + * consistently. + * + * This test expects that operations on out-of-range and missing glyphs should + * act as if they were zero-width. + */ + +#include "cairo-test.h" + +#define WIDTH 100 +#define HEIGHT 75 +#define NUM_TEXT 20 +#define TEXT_SIZE 12 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_text_extents_t extents; + int i; + /* Glyphs with no paths followed by 'cairo', the additional + * text is to make the space obvious. + */ + long int index[] = { + 0, /* 'no matching glyph' */ + 0xffff, /* kATSDeletedGlyphCode */ + 0x1ffff, /* out of range */ + -1L, /* out of range */ + 70, 68, 76, 85, 82 /* 'cairo' */ + }; + + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, 16); + + for (i = 0; i < 9; i++) { + /* since we're just drawing glyphs directly we need to position them. */ + cairo_glyph_t glyph = { + index[i], 10 * i, 25 + }; + + /* test cairo_glyph_extents. Every glyph index should + * have extents, invalid glyphs should be zero-width. + */ + cairo_move_to (cr, glyph.x, glyph.y); + cairo_set_line_width (cr, 1.0); + cairo_glyph_extents (cr, &glyph, 1, &extents); + cairo_rectangle (cr, + glyph.x + extents.x_bearing - 0.5, + glyph.y + extents.y_bearing - 0.5, + extents.width + 1, + extents.height + 1); + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + cairo_stroke (cr); + + /* test cairo_show_glyphs. Every glyph index should be + * drawable, invalid glyph indexes should draw nothing. + */ + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + cairo_show_glyphs (cr, &glyph, 1); + cairo_move_to (cr, glyph.x, glyph.y); + + /* test cairo_glyph_path. Every glyph index should produce + * a path, invalid glyph indexes should have empty paths. + */ + /* Change the glyph position + * so that the paths are visible. + */ + glyph.y = 55; + cairo_move_to (cr, glyph.x, glyph.y); + cairo_glyph_path (cr, &glyph, 1); + cairo_fill (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (text_glyph_range, + "Tests show_glyphs, glyph_path, glyph_extents with out of range glyph ids." + "\nft and atsui font backends fail, misreporting errors from FT_Load_Glyph and ATSUGlyphGetCubicPaths", + "text, stress", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/text-pattern.c b/local/recipes/libs/cairo/source/test/text-pattern.c new file mode 100644 index 0000000000..60267d6580 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/text-pattern.c @@ -0,0 +1,73 @@ +/* + * Copyright © 2005 Tim Rowley + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Tim Rowley + */ + +#include "cairo-test.h" + +#define IMAGE_WIDTH 128 +#define IMAGE_HEIGHT 64 + + +static void +draw_text_pattern (cairo_t *cr, double alpha) +{ + cairo_pattern_t *pat; + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + pat = cairo_pattern_create_linear (0.0, 0.0, 1, 1); + cairo_pattern_add_color_stop_rgba (pat, 1, 1, 0, 0, alpha); + cairo_pattern_add_color_stop_rgba (pat, 0, 0, 0, 1, alpha); + cairo_set_source (cr, pat); + + /* test rectangle - make sure the gradient is set correctly */ + cairo_rectangle (cr, 0, 0, 0.1, 1); + cairo_fill (cr); + + cairo_set_font_size (cr, 0.4); + cairo_move_to (cr, 0.1, 0.6); + cairo_show_text (cr, "cairo"); + + cairo_pattern_destroy (pat); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_scale (cr, width/2, height); + draw_text_pattern (cr, 1.0); + cairo_translate (cr, 1, 0); + draw_text_pattern (cr, 0.5); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (text_pattern, + "Patterned Text", + "text, pattern", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/text-rotate.c b/local/recipes/libs/cairo/source/test/text-rotate.c new file mode 100644 index 0000000000..0a805ac677 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/text-rotate.c @@ -0,0 +1,189 @@ +/* + * Copyright © 2004 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +/* Bug history + * + * 2004-11-03 Steve Chaplin + * + * Reported bug on mailing list: + * + * From: Steve Chaplin + * To: cairo@cairographics.org + * Date: Thu, 04 Nov 2004 00:00:17 +0800 + * Subject: [cairo] Rotated text bug on drawable target + * + * The attached file draws text rotated 90 degrees first to a PNG file and + * then to a drawable. The PNG file looks fine, the text on the drawable is + * unreadable. + * + * Steve + * + * 2004-11-03 Carl Worth + * + * Looks like the major problems with this bug appeared in the great + * font rework between 0.1.23 and 0.2.0. And it looks like we need + * to fix the regression test suite to test the xlib target (since + * the bug does not show up in the png backend). + * + * Hmm... Actually, things don't look perfect even in the PNG + * output. Look at how that 'o' moves around. It's particularly off + * in the case where it's rotated by PI. + * + * And I'm still not sure about what to do for test cases with + * text--a new version of freetype will change everything. We may + * need to add a simple backend for stroked fonts and add a simple + * builtin font to cairo for pixel-perfect tests with text. + * + * 2005-08-23 + * + * It appears that the worst placement and glyph selection problems + * have now been resolved. In the past some letters were noticeably + * of a different size at some rotations, and there was a lot of + * drift away from the baseline. These problems do not appear + * anymore. + * + * Another thing that helps is that we now have font options which + * we can use to disable hinting in order to get more repeatable + * results. I'm doing that in this test now. + * + * There are still some subtle positioning problems which I'm + * assuming are due to the lack of finer-than-whole-pixel glyph + * positioning. I'm generating a reference image now by replacing + * cairo_show_text with cairo_text_path; cairo_fill. This will let + * us look more closely at the remaining positioning problems. (In + * particular, I want to make sure we're rounding as well as + * possible). + * + * 2007-02-21 + * + * Seems like all the "bugs" have been fixed and all remaining is + * missing support for subpixel glyph positioning. Removing from + * XFAIL now. + */ + +#include "cairo-test.h" + +#define WIDTH 150 +#define HEIGHT 150 +#define NUM_TEXT 20 +#define TEXT_SIZE 12 + +/* Draw the word cairo at NUM_TEXT different angles. + * We separate the circle into quadrants to reduce + * numerical errors i.e. so each quarter is pixel-aligned. + */ +static void +draw_quadrant (cairo_t *cr, + const char *text, + const cairo_text_extents_t *extents, + const cairo_matrix_t *transform, + int x_off, int y_off) +{ + int i; + + for (i = 0; i < NUM_TEXT/4; i++) { + cairo_save (cr); + cairo_rotate (cr, 2*M_PI*i/NUM_TEXT); + cairo_transform (cr, transform); + cairo_set_line_width (cr, 1.0); + cairo_rectangle (cr, x_off - 0.5, y_off - 0.5, extents->width + 1, extents->height + 1); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_stroke (cr); + cairo_move_to (cr, x_off - extents->x_bearing, y_off - extents->y_bearing); + cairo_set_source_rgb (cr, 0, 0, 0); +#if CAIRO_TEST_GENERATE_REFERENCE_IMAGE + cairo_text_path (cr, text); + cairo_fill (cr); +#else + cairo_show_text (cr, text); +#endif + cairo_restore (cr); + } +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_text_extents_t extents; + cairo_font_options_t *font_options; + const char text[] = "cairo"; + int x_off, y_off; + cairo_matrix_t m; + + /* paint white so we don't need separate ref images for + * RGB24 and ARGB32 */ + cairo_set_source_rgb (cr, 1., 1., 1.); + cairo_paint (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + + font_options = cairo_font_options_create (); + + cairo_get_font_options (cr, font_options); + cairo_font_options_set_hint_metrics (font_options, CAIRO_HINT_METRICS_OFF); + + cairo_set_font_options (cr, font_options); + cairo_font_options_destroy (font_options); + + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_translate (cr, WIDTH/2.0, HEIGHT/2.0); + + cairo_text_extents (cr, text, &extents); + + if (NUM_TEXT == 1) { + x_off = y_off = 0; + } else { + y_off = - floor (0.5 + extents.height / 2.0); + x_off = floor (0.5 + (extents.height+1) / (2 * tan (M_PI/NUM_TEXT))); + } + + cairo_save (cr); + cairo_matrix_init_identity (&m); + draw_quadrant (cr, text, &extents, &m, x_off, y_off); + cairo_matrix_init (&m, 0, 1, -1, 0, 0, 0); + draw_quadrant (cr, text, &extents, &m, x_off, y_off); + cairo_restore (cr); + + cairo_save (cr); + cairo_scale (cr, -1, -1); + cairo_matrix_init_identity (&m); + draw_quadrant (cr, text, &extents, &m, x_off, y_off); + cairo_matrix_init (&m, 0, 1, -1, 0, 0, 0); + draw_quadrant (cr, text, &extents, &m, x_off, y_off); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (text_rotate, + "Tests show_text under various rotations", + "text, transform", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/text-subpixel.c b/local/recipes/libs/cairo/source/test/text-subpixel.c new file mode 100644 index 0000000000..3ea63b950a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/text-subpixel.c @@ -0,0 +1,68 @@ +/* + * Copyright © 2019 Matthias Clasen + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#define WIDTH 300 +#define HEIGHT 200 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_font_options_t *font_options; + double size, y; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY "DejaVu Sans Mono", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + font_options = cairo_font_options_create(); + cairo_get_font_options (cr, font_options); + cairo_font_options_set_hint_metrics (font_options, CAIRO_HINT_METRICS_OFF); + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_NONE); + cairo_set_font_options (cr, font_options); + cairo_font_options_destroy (font_options); + + y = 0.0; + cairo_set_source_rgb (cr, 0, 0, 0); + for (size = 10.0; size <= 40.0; size += 3.3) { + cairo_set_font_size (cr, size); + y += size + 2.3; + cairo_move_to (cr, 5, y); + cairo_show_text (cr, "aaaaaaaaaa"); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (text_subpixel_positioning, + "Test subpixel positioning", + "text, font", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/text-transform.c b/local/recipes/libs/cairo/source/test/text-transform.c new file mode 100644 index 0000000000..2cd7f100b1 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/text-transform.c @@ -0,0 +1,104 @@ +/* + * Copyright © 2006 Mozilla Corporation + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Mozilla Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Mozilla Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Vladimir Vukicevic + */ + +#include "cairo-test.h" + +#define SIZE 100 +#define PAD 5 + +#define FONT_SIZE 32.0 + +static const char *png_filename = "romedalen.png"; + +static void +draw_text (cairo_t *cr) +{ + cairo_matrix_t tm; + + /* skew */ + cairo_matrix_init (&tm, 1, 0, + -0.25, 1, + 0, 0); + cairo_matrix_scale (&tm, FONT_SIZE, FONT_SIZE); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, 50, SIZE-PAD); + cairo_show_text (cr, "A"); + + /* rotate and scale */ + cairo_matrix_init_rotate (&tm, M_PI / 2); + cairo_matrix_scale (&tm, FONT_SIZE, FONT_SIZE * 2.0); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, PAD, PAD + 25); + cairo_show_text (cr, "A"); + + cairo_matrix_init_rotate (&tm, M_PI / 2); + cairo_matrix_scale (&tm, FONT_SIZE * 2.0, FONT_SIZE); + cairo_set_font_matrix (cr, &tm); + + cairo_new_path (cr); + cairo_move_to (cr, PAD, PAD + 50); + cairo_show_text (cr, "A"); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_pattern_t *pattern; + + cairo_set_source_rgb (cr, 1., 1., 1.); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0., 0., 0.); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + draw_text (cr); + + cairo_translate (cr, SIZE, SIZE); + cairo_rotate (cr, M_PI); + + pattern = cairo_test_create_pattern_from_png (ctx, png_filename); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + draw_text (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (text_transform, + "Test various applications of the font matrix", + "text, transform", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/text-unhinted-metrics.c b/local/recipes/libs/cairo/source/test/text-unhinted-metrics.c new file mode 100644 index 0000000000..352ab4ef2b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/text-unhinted-metrics.c @@ -0,0 +1,73 @@ +/* + * Copyright © 2016 Adrian Johnson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Adrian Johnson + */ + +/* Test CAIRO_HINT_METRICS_OFF with a TrueType font. + * + * Based on the test case in https://lists.cairographics.org/archives/cairo/2016-April/027334.html + */ + +#include "cairo-test.h" + +#define WIDTH 100 +#define HEIGHT 100 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_font_options_t *font_options; + double size, y; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY "DejaVu Sans Mono", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + font_options = cairo_font_options_create(); + cairo_get_font_options (cr, font_options); + cairo_font_options_set_hint_metrics (font_options, CAIRO_HINT_METRICS_OFF); + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_NONE); + cairo_set_font_options (cr, font_options); + cairo_font_options_destroy (font_options); + + y = 0.0; + cairo_set_source_rgb (cr, 0, 0, 0); + for (size = 8.0; size <= 10.0; size += 0.25) { + cairo_set_font_size (cr, size); + y += 10.0; + cairo_move_to (cr, 5, y); + cairo_show_text (cr, "abcdefghijklm"); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (text_unhinted_metrics, + "Test CAIRO_HINT_METRICS_OFF", + "text, font", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/text-zero-len.c b/local/recipes/libs/cairo/source/test/text-zero-len.c new file mode 100644 index 0000000000..5e89816c85 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/text-zero-len.c @@ -0,0 +1,203 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Behdad Esfahbod + */ + +/* Related bug 5177 + * + * In short: + * + * _cairo_atsui_font_text_to_glyph with a zero-sized string crashes. + * + * Moreover, the fallback path in cairo_scaled_font_text_to_glyphs() + * when handling a zero-sized string, allocates a zero-sized glyph array + * and when NULL is returned by malloc, recognizes that as an out-of-memory + * error. The glibc implementation of malloc() does not return NULL from + * malloc(0), but I don't think it's a safe assumption. + * + * By just bailing out on zero-sized text, we fix both issues. + */ + +#include "cairo-test.h" + +#define NUM_TEXT 20 +#define TEXT_SIZE 12 + +static cairo_bool_t +text_extents_equal (const cairo_text_extents_t *A, + const cairo_text_extents_t *B) +{ + return A->x_bearing == B->x_bearing && + A->y_bearing == B->y_bearing && + A->width == B->width && + A->height == B->height && + A->x_advance == B->x_advance && + A->y_advance == B->y_advance; +} + +static cairo_bool_t +font_extents_equal (const cairo_font_extents_t *A, + const cairo_font_extents_t *B) +{ + return A->ascent == B->ascent && + A->descent == B->descent && + A->height == B->height && + A->max_x_advance == B->max_x_advance && + A->max_y_advance == B->max_y_advance; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + cairo_text_extents_t extents, nil_extents; + cairo_font_extents_t font_extents, nil_font_extents; + cairo_scaled_font_t *scaled_font; + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, 16); + + cairo_move_to (cr, 10, 25); + cairo_show_text (cr, NULL); + cairo_show_text (cr, ""); + cairo_show_glyphs (cr, NULL, 0); + cairo_show_glyphs (cr, (void*)8, 0); + + cairo_move_to (cr, 10, 55); + cairo_text_path (cr, NULL); + cairo_text_path (cr, ""); + cairo_glyph_path (cr, (void*)8, 0); + cairo_fill (cr); + + memset (&nil_extents, 0, sizeof (cairo_text_extents_t)); + + memset (&extents, 0xff, sizeof (cairo_text_extents_t)); + cairo_text_extents (cr, "", &extents); + if (! text_extents_equal (&extents, &nil_extents)) { + cairo_test_log (ctx, "Error: cairo_text_extents(\"\"); extents (%g, %g, %g, %g, %g, %g)\n", + extents.x_bearing, extents.y_bearing, + extents.width, extents.height, + extents.x_advance, extents.y_advance); + return CAIRO_TEST_FAILURE; + } + + memset (&extents, 0xff, sizeof (cairo_text_extents_t)); + cairo_text_extents (cr, NULL, &extents); + if (! text_extents_equal (&extents, &nil_extents)) { + cairo_test_log (ctx, "Error: cairo_text_extents(NULL); extents (%g, %g, %g, %g, %g, %g)\n", + extents.x_bearing, extents.y_bearing, + extents.width, extents.height, + extents.x_advance, extents.y_advance); + return CAIRO_TEST_FAILURE; + } + + memset (&extents, 0xff, sizeof (cairo_text_extents_t)); + cairo_glyph_extents (cr, (void*)8, 0, &extents); + if (! text_extents_equal (&extents, &nil_extents)) { + cairo_test_log (ctx, "Error: cairo_glyph_extents(); extents (%g, %g, %g, %g, %g, %g)\n", + extents.x_bearing, extents.y_bearing, + extents.width, extents.height, + extents.x_advance, extents.y_advance); + return CAIRO_TEST_FAILURE; + } + + scaled_font = cairo_get_scaled_font (cr); + + memset (&extents, 0xff, sizeof (cairo_text_extents_t)); + cairo_scaled_font_text_extents (scaled_font, "", &extents); + if (! text_extents_equal (&extents, &nil_extents)) { + cairo_test_log (ctx, "Error: cairo_scaled_font_text_extents(\"\"); extents (%g, %g, %g, %g, %g, %g)\n", + extents.x_bearing, extents.y_bearing, + extents.width, extents.height, + extents.x_advance, extents.y_advance); + return CAIRO_TEST_FAILURE; + } + + memset (&extents, 0xff, sizeof (cairo_text_extents_t)); + cairo_scaled_font_text_extents (scaled_font, NULL, &extents); + if (! text_extents_equal (&extents, &nil_extents)) { + cairo_test_log (ctx, "Error: cairo_scaled_font_text_extents(NULL); extents (%g, %g, %g, %g, %g, %g)\n", + extents.x_bearing, extents.y_bearing, + extents.width, extents.height, + extents.x_advance, extents.y_advance); + return CAIRO_TEST_FAILURE; + } + + memset (&extents, 0xff, sizeof (cairo_text_extents_t)); + cairo_scaled_font_glyph_extents (scaled_font, (void*)8, 0, &extents); + if (! text_extents_equal (&extents, &nil_extents)) { + cairo_test_log (ctx, "Error: cairo_scaled_font_glyph_extents(NULL); extents (%g, %g, %g, %g, %g, %g)\n", + extents.x_bearing, extents.y_bearing, + extents.width, extents.height, + extents.x_advance, extents.y_advance); + return CAIRO_TEST_FAILURE; + } + + /* Lets also try font size 0 while here */ + cairo_set_font_size (cr, 0); + + memset (&extents, 0xff, sizeof (cairo_text_extents_t)); + cairo_text_extents (cr, "test", &extents); + if (! text_extents_equal (&extents, &nil_extents)) { + cairo_test_log (ctx, "Error: cairo_set_font_size(0); cairo_text_extents(\"test\"); extents (%g, %g, %g, %g, %g, %g)\n", + extents.x_bearing, extents.y_bearing, + extents.width, extents.height, + extents.x_advance, extents.y_advance); + return CAIRO_TEST_FAILURE; + } + + memset (&nil_font_extents, 0, sizeof (cairo_font_extents_t)); + + memset (&font_extents, 0xff, sizeof (cairo_font_extents_t)); + cairo_font_extents (cr, &font_extents); + if (! font_extents_equal (&font_extents, &nil_font_extents)) { + cairo_test_log (ctx, "Error: cairo_set_font_size(0); cairo_font_extents(); extents (%g, %g, %g, %g, %g)\n", + font_extents.ascent, font_extents.descent, + font_extents.height, + font_extents.max_x_advance, font_extents.max_y_advance); + return CAIRO_TEST_FAILURE; + } + + scaled_font = cairo_get_scaled_font (cr); + + memset (&font_extents, 0xff, sizeof (cairo_font_extents_t)); + cairo_scaled_font_extents (scaled_font, &font_extents); + if (! font_extents_equal (&font_extents, &nil_font_extents)) { + cairo_test_log (ctx, "Error: cairo_set_font_size(0); cairo_scaled_font_extents(); extents (%g, %g, %g, %g, %g)\n", + font_extents.ascent, font_extents.descent, + font_extents.height, + font_extents.max_x_advance, font_extents.max_y_advance); + return CAIRO_TEST_FAILURE; + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (text_zero_len, + "Tests show_text and text_path with a zero-sized string", + "text, stress, extents", /* keywords */ + NULL, /* requirements */ + 0, 0, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/thin-lines.c b/local/recipes/libs/cairo/source/test/thin-lines.c new file mode 100644 index 0000000000..c501254be5 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/thin-lines.c @@ -0,0 +1,95 @@ +/* + * Copyright © 2015 Adrian Johnson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Adrian Johnson + */ + +#include "cairo-test.h" + +#define CELL_WIDTH 20 +#define CELL_HEIGHT 20 +#define PAD 2 +#define IMAGE_WIDTH (CELL_WIDTH*3 + PAD*4) +#define IMAGE_HEIGHT (CELL_HEIGHT*4 + PAD*5) + + +static void +draw_lines(cairo_t *cr) +{ + /* horizontal line */ + cairo_translate (cr, PAD, PAD); + cairo_move_to (cr, 0, CELL_HEIGHT/2); + cairo_line_to (cr, CELL_WIDTH, CELL_HEIGHT/2); + cairo_stroke (cr); + + /* vertical line */ + cairo_translate (cr, 0, CELL_HEIGHT + PAD); + cairo_move_to (cr, CELL_WIDTH/2, 0); + cairo_line_to (cr, CELL_WIDTH/2, CELL_HEIGHT); + cairo_stroke (cr); + + /* diagonal line */ + cairo_translate (cr, 0, CELL_HEIGHT + PAD); + cairo_move_to (cr, 0, CELL_HEIGHT); + cairo_line_to (cr, CELL_WIDTH, 0); + cairo_stroke (cr); + + /* curved line */ + cairo_translate (cr, 0, CELL_HEIGHT + PAD); + cairo_move_to (cr, CELL_WIDTH, 0); + cairo_curve_to (cr, 0, 0, + CELL_WIDTH, CELL_HEIGHT, + 0, CELL_HEIGHT); + cairo_stroke (cr); +} + +#define FIXED_POINT_MIN (1.0/256) + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_save (cr); + cairo_set_line_width (cr, FIXED_POINT_MIN*10.0); + draw_lines (cr); + cairo_restore (cr); + + cairo_translate (cr, CELL_WIDTH + PAD, 0); + cairo_save (cr); + cairo_set_line_width (cr, FIXED_POINT_MIN); + draw_lines (cr); + cairo_restore (cr); + + cairo_translate (cr, CELL_WIDTH + PAD, 0); + cairo_save (cr); + cairo_set_line_width (cr, FIXED_POINT_MIN/10.0); + draw_lines (cr); + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (thin_lines, + "Tests that very thin lines are output to vector surfaces", + "stroke", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/tiger.c b/local/recipes/libs/cairo/source/test/tiger.c new file mode 100644 index 0000000000..059bb849f6 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/tiger.c @@ -0,0 +1,85 @@ +/* + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "cairo-test.h" + +#include "tiger.inc" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + unsigned int i; + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgba (cr, 0.1, 0.2, 0.3, 1.0); + cairo_paint (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + + cairo_translate (cr, width/2, height/2); + cairo_scale (cr, .85, .85); + + for (i = 0; i < ARRAY_LENGTH(tiger_commands); i++) { + const struct command *cmd = &tiger_commands[i]; + switch (cmd->type) { + case 'm': + cairo_move_to (cr, cmd->x0, cmd->y0); + break; + case 'l': + cairo_line_to (cr, cmd->x0, cmd->y0); + break; + case 'c': + cairo_curve_to (cr, + cmd->x0, cmd->y0, + cmd->x1, cmd->y1, + cmd->x2, cmd->y2); + break; + case 'f': + cairo_set_source_rgba (cr, + cmd->x0, cmd->y0, cmd->x1, cmd->y1); + cairo_fill (cr); + break; + } + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +a1_draw (cairo_t *cr, int width, int height) +{ + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + return draw (cr, width, height); +} + +CAIRO_TEST (tiger, + "Check the fidelity of the rasterisation.", + "raster", /* keywords */ + NULL, /* requirements */ + 500, 500, + NULL, draw) + +CAIRO_TEST (a1_tiger, + "Check the fidelity of the rasterisation.", + "fill", /* keywords */ + "target=raster", /* requirements */ + 500, 500, + NULL, a1_draw) diff --git a/local/recipes/libs/cairo/source/test/tiger.inc b/local/recipes/libs/cairo/source/test/tiger.inc new file mode 100644 index 0000000000..419b97989f --- /dev/null +++ b/local/recipes/libs/cairo/source/test/tiger.inc @@ -0,0 +1,2316 @@ +static const struct command { + char type; + float x0, y0; + float x1, y1; + float x2, y2; +} tiger_commands[] = { +{'m', -122.30, 84.28, 0, 0, 0, 0}, +{'c', -122.30, 84.28, -122.20 ,86.18, -123.03, 86.16}, +{'c', -123.85, 86.14, -140.31 ,38.07, -160.83, 40.31}, +{'f', 1.000000,1.000000,1.000000,1.000000,0,0 }, +{'m', -118.77, 81.26, 0, 0, 0, 0}, +{'c', -118.77, 81.26, -119.32 ,83.08, -120.09, 82.78}, +{'c', -120.86, 82.48, -119.98 ,31.68, -140.04, 26.80}, +{'f', 1.000000,1.000000,1.000000,1.000000,0,0 }, +{'m', -91.28, 123.59, 0, 0, 0, 0}, +{'c', -91.28, 123.59, -89.65 ,124.55, -90.12, 125.23}, +{'c', -90.59, 125.90, -139.76 ,113.10, -149.22, 131.46}, +{'f', 1.000000,1.000000,1.000000,1.000000,0,0 }, +{'m', -94.09, 133.80, 0, 0, 0, 0}, +{'c', -94.09, 133.80, -92.24 ,134.20, -92.47, 134.99}, +{'c', -92.70, 135.78, -143.41 ,139.12, -146.60, 159.52}, +{'f', 1.000000,1.000000,1.000000,1.000000,0,0 }, +{'m', -98.30, 128.28, 0, 0, 0, 0}, +{'c', -98.30, 128.28, -96.53 ,128.94, -96.87, 129.69}, +{'c', -97.22, 130.44, -147.87 ,126.35, -154.00, 146.06}, +{'f', 1.000000,1.000000,1.000000,1.000000,0,0 }, +{'m', -109.01, 110.07, 0, 0, 0, 0}, +{'c', -109.01, 110.07, -107.70 ,111.45, -108.34, 111.97}, +{'c', -108.98, 112.49, -152.72 ,86.63, -166.87, 101.68}, +{'f', 1.000000,1.000000,1.000000,1.000000,0,0 }, +{'m', -116.55, 114.26, 0, 0, 0, 0}, +{'c', -116.55, 114.26, -115.10 ,115.48, -115.67, 116.07}, +{'c', -116.25, 116.66, -162.64 ,95.92, -174.99, 112.47}, +{'f', 1.000000,1.000000,1.000000,1.000000,0,0 }, +{'m', -119.15, 118.33, 0, 0, 0, 0}, +{'c', -119.15, 118.33, -117.55 ,119.34, -118.04, 120.01}, +{'c', -118.53, 120.67, -167.31 ,106.45, -177.29, 124.52}, +{'f', 1.000000,1.000000,1.000000,1.000000,0,0 }, +{'m', -108.42, 118.95, 0, 0, 0, 0}, +{'c', -108.42, 118.95, -107.30 ,120.48, -108.00, 120.92}, +{'c', -108.70, 121.35, -148.77 ,90.10, -164.73, 103.21}, +{'f', 1.000000,1.000000,1.000000,1.000000,0,0 }, +{'m', -128.20, 90.00, 0, 0, 0, 0}, +{'c', -128.20, 90.00, -127.60 ,91.80, -128.40, 92.00}, +{'c', -129.20, 92.20, -157.80 ,50.20, -177.00, 57.80}, +{'f', 1.000000,1.000000,1.000000,1.000000,0,0 }, +{'m', -127.50, 96.98, 0, 0, 0, 0}, +{'c', -127.50, 96.98, -126.53 ,98.61, -127.27, 98.97}, +{'c', -128.01, 99.34, -164.99 ,64.50, -182.10, 76.06}, +{'f', 1.000000,1.000000,1.000000,1.000000,0,0 }, +{'m', -127.62, 101.35, 0, 0, 0, 0}, +{'c', -127.62, 101.35, -126.50 ,102.88, -127.20, 103.31}, +{'c', -127.90, 103.75, -167.97 ,72.50, -183.93, 85.61}, +{'f', 1.000000,1.000000,1.000000,1.000000,0,0 }, +{'m', -129.83, 103.06, 0, 0, 0, 0}, +{'c', -129.33, 109.11, -128.34 ,115.68, -126.60, 118.80}, +{'c', -126.60, 118.80, -130.20 ,131.20, -121.40, 144.40}, +{'c', -121.40, 144.40, -121.80 ,151.60, -120.20, 154.80}, +{'c', -120.20, 154.80, -116.20 ,163.20, -111.40, 164.00}, +{'c', -107.52, 164.65, -98.79 ,167.72, -88.93, 169.12}, +{'c', -88.93, 169.12, -71.80 ,183.20, -75.00, 196.00}, +{'c', -75.00, 196.00, -75.40 ,212.40, -79.00, 214.00}, +{'c', -79.00, 214.00, -67.40 ,202.80, -77.00, 219.60}, +{'l', -81.40, 238.40, 0, 0, 0, 0}, +{'c', -81.40, 238.40, -55.80 ,216.80, -71.40, 235.20}, +{'l', -81.40, 261.20, 0, 0, 0, 0}, +{'c', -81.40, 261.20, -61.80 ,242.80, -69.00, 251.20}, +{'l', -72.20, 260.00, 0, 0, 0, 0}, +{'c', -72.20, 260.00, -29.00 ,232.80, -59.80, 262.40}, +{'c', -59.80, 262.40, -51.80 ,258.80, -47.40, 261.60}, +{'c', -47.40, 261.60, -40.60 ,260.40, -41.40, 262.00}, +{'c', -41.40, 262.00, -62.20 ,272.40, -65.80, 290.80}, +{'c', -65.80, 290.80, -57.40 ,280.80, -60.60, 291.60}, +{'l', -60.20, 303.20, 0, 0, 0, 0}, +{'c', -60.20, 303.20, -56.20 ,281.60, -56.60, 319.20}, +{'c', -56.60, 319.20, -37.40 ,301.20, -49.00, 322.00}, +{'l', -49.00, 338.80, 0, 0, 0, 0}, +{'c', -49.00, 338.80, -33.80 ,322.40, -40.20, 335.20}, +{'c', -40.20, 335.20, -30.20 ,326.40, -34.20, 341.60}, +{'c', -34.20, 341.60, -35.00 ,352.00, -30.60, 340.80}, +{'c', -30.60, 340.80, -14.60 ,310.20, -20.60, 336.40}, +{'c', -20.60, 336.40, -21.40 ,355.60, -16.60, 340.80}, +{'c', -16.60, 340.80, -16.20 ,351.20, -7.00, 358.40}, +{'c', -7.00, 358.40, -8.20 ,307.60, 4.60, 343.60}, +{'l', 8.60, 360.00, 0, 0, 0, 0}, +{'c', 8.60, 360.00, 11.40 ,350.80, 11.00, 345.60}, +{'c', 11.00, 345.60, 25.80 ,329.20, 19.00, 353.60}, +{'c', 19.00, 353.60, 34.20 ,330.80, 31.00, 344.00}, +{'c', 31.00, 344.00, 23.40 ,360.00, 25.00, 364.80}, +{'c', 25.00, 364.80, 41.80 ,330.00, 43.00, 328.40}, +{'c', 43.00, 328.40, 41.00 ,370.80, 51.80, 334.80}, +{'c', 51.80, 334.80, 57.40 ,346.80, 54.60, 351.20}, +{'c', 54.60, 351.20, 62.60 ,343.20, 61.80, 340.00}, +{'c', 61.80, 340.00, 66.40 ,331.80, 69.20, 345.40}, +{'c', 69.20, 345.40, 71.00 ,354.80, 72.60, 351.60}, +{'c', 72.60, 351.60, 76.60 ,375.60, 77.80, 352.80}, +{'c', 77.80, 352.80, 79.40 ,339.20, 72.20, 327.60}, +{'c', 72.20, 327.60, 73.00 ,324.40, 70.20, 320.40}, +{'c', 70.20, 320.40, 83.80 ,342.00, 76.60, 313.20}, +{'c', 76.60, 313.20, 87.80 ,321.20, 89.00, 321.20}, +{'c', 89.00, 321.20, 75.40 ,298.00, 84.20, 302.80}, +{'c', 84.20, 302.80, 79.00 ,292.40, 97.00, 304.40}, +{'c', 97.00, 304.40, 81.00 ,288.40, 98.60, 298.00}, +{'c', 98.60, 298.00, 106.60 ,304.40, 99.00, 294.40}, +{'c', 99.00, 294.40, 84.60 ,278.40, 106.60, 296.40}, +{'c', 106.60, 296.40, 118.20 ,312.80, 119.00, 315.60}, +{'c', 119.00, 315.60, 109.00 ,286.40, 104.60, 283.60}, +{'c', 104.60, 283.60, 113.00 ,247.20, 154.20, 262.80}, +{'c', 154.20, 262.80, 161.00 ,280.00, 165.40, 261.60}, +{'c', 165.40, 261.60, 178.20 ,255.20, 189.40, 282.80}, +{'c', 189.40, 282.80, 193.40 ,269.20, 192.60, 266.40}, +{'c', 192.60, 266.40, 199.40 ,267.60, 198.60, 266.40}, +{'c', 198.60, 266.40, 211.80 ,270.80, 213.00, 270.00}, +{'c', 213.00, 270.00, 219.80 ,276.80, 220.20, 273.20}, +{'c', 220.20, 273.20, 229.40 ,276.00, 227.40, 272.40}, +{'c', 227.40, 272.40, 236.20 ,288.00, 236.60, 291.60}, +{'l', 239.00, 277.60, 0, 0, 0, 0}, +{'l', 241.00, 280.40, 0, 0, 0, 0}, +{'c', 241.00, 280.40, 242.60 ,272.80, 241.80, 271.60}, +{'c', 241.00, 270.40, 261.80 ,278.40, 266.60, 299.20}, +{'l', 268.60, 307.60, 0, 0, 0, 0}, +{'c', 268.60, 307.60, 274.60 ,292.80, 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}}; diff --git a/local/recipes/libs/cairo/source/test/tighten-bounds.c b/local/recipes/libs/cairo/source/test/tighten-bounds.c new file mode 100644 index 0000000000..f5430e4471 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/tighten-bounds.c @@ -0,0 +1,172 @@ +/* + * Copyright © 2011 Uli Schlachter + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Uli Schlachter + */ + +#include "cairo-test.h" + +static void path_none (cairo_t *cr, int size) +{ +} + +static void path_box (cairo_t *cr, int size) +{ + cairo_rectangle (cr, 0, 0, size, size); +} + +static void path_box_unaligned (cairo_t *cr, int size) +{ + cairo_rectangle (cr, 0.5, 0.5, size - 1, size - 1); +} + +static void path_triangle (cairo_t *cr, int size) +{ + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, size/2, size); + cairo_line_to (cr, size, 0); + cairo_close_path (cr); +} + +static void path_circle (cairo_t *cr, int size) +{ + cairo_arc (cr, size / 2.0, size / 2.0, size / 2.0, 0, 2 * M_PI); +} + +static void (* const path_funcs[])(cairo_t *cr, int size) = { + path_none, + path_box, + path_box_unaligned, + path_triangle, + path_circle +}; + +#define SIZE 20 +#define PAD 2 +#define TYPES 6 +/* All-clipped is boring, thus we skip path_none for clipping */ +#define CLIP_OFFSET 1 +#define IMAGE_WIDTH ((ARRAY_LENGTH (path_funcs) - CLIP_OFFSET) * TYPES * (SIZE + PAD) - PAD) +#define IMAGE_HEIGHT (ARRAY_LENGTH (path_funcs) * (SIZE + PAD) - PAD) + +static void +draw_idx (cairo_t *cr, int i, int j, int type) +{ + cairo_bool_t little_path; + cairo_bool_t empty_clip; + cairo_bool_t little_clip; + + /* The lowest bit controls the path, the rest the clip */ + little_path = type & 1; + + /* We don't want the combination "empty_clip = TRUE, little_clip = FALSE" + * (== all clipped). + */ + switch (type >> 1) + { + case 0: + empty_clip = FALSE; + little_clip = FALSE; + break; + case 1: + empty_clip = FALSE; + little_clip = TRUE; + break; + case 2: + empty_clip = TRUE; + little_clip = TRUE; + break; + default: + return; + } + + cairo_save (cr); + + /* Thanks to the fill rule, drawing something twice removes it again */ + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + + path_funcs[i] (cr, SIZE); + if (empty_clip) + path_funcs[i] (cr, SIZE); + if (little_clip) + { + cairo_save (cr); + cairo_translate (cr, SIZE / 4, SIZE / 4); + path_funcs[i] (cr, SIZE / 2); + cairo_restore (cr); + } + cairo_clip (cr); + + path_funcs[j] (cr, SIZE); + path_funcs[j] (cr, SIZE); + if (little_path) + { + /* Draw the object again in the center of itself */ + cairo_save (cr); + cairo_translate (cr, SIZE / 4, SIZE / 4); + path_funcs[j] (cr, SIZE / 2); + cairo_restore (cr); + } + cairo_fill (cr); + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + size_t i, j, k; + + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_paint (cr); + + /* Set an unbounded operator so that we can see how accurate the bounded + * extents were. + */ + cairo_set_operator (cr, CAIRO_OPERATOR_IN); + cairo_set_source_rgb (cr, 1, 1, 1); + + for (j = 0; j < ARRAY_LENGTH (path_funcs); j++) { + cairo_save (cr); + for (i = CLIP_OFFSET; i < ARRAY_LENGTH (path_funcs); i++) { + for (k = 0; k < TYPES; k++) { + cairo_save (cr); + cairo_rectangle (cr, 0, 0, SIZE, SIZE); + cairo_clip (cr); + draw_idx (cr, i, j, k); + cairo_restore (cr); + cairo_translate (cr, SIZE + PAD, 0); + } + } + cairo_restore (cr); + cairo_translate (cr, 0, SIZE + PAD); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (tighten_bounds, + "Tests that we tighten the bounds after tessellation.", + "fill", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/toy-font-face.c b/local/recipes/libs/cairo/source/test/toy-font-face.c new file mode 100644 index 0000000000..95d2c01eb4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/toy-font-face.c @@ -0,0 +1,147 @@ +/* + * Copyright © 2005,2008 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + * Behdad Esfahbod + */ + +#include "config.h" + +#include "cairo-test.h" + +#include +#include +#include + +#if CAIRO_HAS_WIN32_FONT +#define CAIRO_FONT_FAMILY_DEFAULT "Arial" +#elif CAIRO_HAS_QUARTZ_FONT +#define CAIRO_FONT_FAMILY_DEFAULT "Helvetica" +#elif CAIRO_HAS_FT_FONT +#define CAIRO_FONT_FAMILY_DEFAULT "" +#else +#define CAIRO_FONT_FAMILY_DEFAULT "@cairo:" +#endif + + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + cairo_t *cr; + cairo_surface_t *surface; + cairo_font_face_t *font_face; + cairo_status_t status; + + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 0, 0); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + font_face = cairo_font_face_reference (cairo_get_font_face (cr)); + assert (cairo_font_face_get_type (font_face) == CAIRO_FONT_TYPE_TOY); + assert (cairo_toy_font_face_get_family (font_face) != NULL); + assert (cairo_toy_font_face_get_slant (font_face) == CAIRO_FONT_SLANT_NORMAL); + assert (cairo_toy_font_face_get_weight (font_face) == CAIRO_FONT_WEIGHT_NORMAL); + status = cairo_font_face_status(font_face); + cairo_font_face_destroy (font_face); + + if (status) + return cairo_test_status_from_status (ctx, status); + + cairo_select_font_face (cr, + "bizarre", + CAIRO_FONT_SLANT_OBLIQUE, + CAIRO_FONT_WEIGHT_BOLD); + font_face = cairo_font_face_reference (cairo_get_font_face (cr)); + assert (cairo_font_face_get_type (font_face) == CAIRO_FONT_TYPE_TOY); + assert (0 == (strcmp) (cairo_toy_font_face_get_family (font_face), "bizarre")); + assert (cairo_toy_font_face_get_slant (font_face) == CAIRO_FONT_SLANT_OBLIQUE); + assert (cairo_toy_font_face_get_weight (font_face) == CAIRO_FONT_WEIGHT_BOLD); + status = cairo_font_face_status(font_face); + cairo_font_face_destroy (font_face); + + if (status) + return cairo_test_status_from_status (ctx, status); + + font_face = cairo_toy_font_face_create ("bozarre", + CAIRO_FONT_SLANT_OBLIQUE, + CAIRO_FONT_WEIGHT_BOLD); + assert (cairo_font_face_get_type (font_face) == CAIRO_FONT_TYPE_TOY); + assert (0 == (strcmp) (cairo_toy_font_face_get_family (font_face), "bozarre")); + assert (cairo_toy_font_face_get_slant (font_face) == CAIRO_FONT_SLANT_OBLIQUE); + assert (cairo_toy_font_face_get_weight (font_face) == CAIRO_FONT_WEIGHT_BOLD); + status = cairo_font_face_status(font_face); + cairo_font_face_destroy (font_face); + + if (status) + return cairo_test_status_from_status (ctx, status); + + font_face = cairo_toy_font_face_create (NULL, + CAIRO_FONT_SLANT_OBLIQUE, + CAIRO_FONT_WEIGHT_BOLD); + assert (cairo_font_face_get_type (font_face) == CAIRO_FONT_TYPE_TOY); + assert (0 == (strcmp) (cairo_toy_font_face_get_family (font_face), CAIRO_FONT_FAMILY_DEFAULT)); + assert (cairo_toy_font_face_get_slant (font_face) == CAIRO_FONT_SLANT_NORMAL); + assert (cairo_toy_font_face_get_weight (font_face) == CAIRO_FONT_WEIGHT_NORMAL); + assert (cairo_font_face_status(font_face) == CAIRO_STATUS_NULL_POINTER); + cairo_font_face_destroy (font_face); + + font_face = cairo_toy_font_face_create ("\xff", + CAIRO_FONT_SLANT_OBLIQUE, + CAIRO_FONT_WEIGHT_BOLD); + assert (cairo_font_face_get_type (font_face) == CAIRO_FONT_TYPE_TOY); + assert (0 == (strcmp) (cairo_toy_font_face_get_family (font_face), CAIRO_FONT_FAMILY_DEFAULT)); + assert (cairo_toy_font_face_get_slant (font_face) == CAIRO_FONT_SLANT_NORMAL); + assert (cairo_toy_font_face_get_weight (font_face) == CAIRO_FONT_WEIGHT_NORMAL); + assert (cairo_font_face_status(font_face) == CAIRO_STATUS_INVALID_STRING); + cairo_font_face_destroy (font_face); + + font_face = cairo_toy_font_face_create ("sans", + -1, + CAIRO_FONT_WEIGHT_BOLD); + assert (cairo_font_face_get_type (font_face) == CAIRO_FONT_TYPE_TOY); + assert (0 == (strcmp) (cairo_toy_font_face_get_family (font_face), CAIRO_FONT_FAMILY_DEFAULT)); + assert (cairo_toy_font_face_get_slant (font_face) == CAIRO_FONT_SLANT_NORMAL); + assert (cairo_toy_font_face_get_weight (font_face) == CAIRO_FONT_WEIGHT_NORMAL); + assert (cairo_font_face_status(font_face) == CAIRO_STATUS_INVALID_SLANT); + cairo_font_face_destroy (font_face); + + font_face = cairo_toy_font_face_create ("sans", + CAIRO_FONT_SLANT_OBLIQUE, + -1); + assert (cairo_font_face_get_type (font_face) == CAIRO_FONT_TYPE_TOY); + assert (0 == (strcmp) (cairo_toy_font_face_get_family (font_face), CAIRO_FONT_FAMILY_DEFAULT)); + assert (cairo_toy_font_face_get_slant (font_face) == CAIRO_FONT_SLANT_NORMAL); + assert (cairo_toy_font_face_get_weight (font_face) == CAIRO_FONT_WEIGHT_NORMAL); + assert (cairo_font_face_status(font_face) == CAIRO_STATUS_INVALID_WEIGHT); + cairo_font_face_destroy (font_face); + + cairo_destroy (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (toy_font_face, + "Check the construction of 'toy' font faces", + "font, api", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/transforms.c b/local/recipes/libs/cairo/source/test/transforms.c new file mode 100644 index 0000000000..17b1396874 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/transforms.c @@ -0,0 +1,112 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl Worth + */ + +#include "cairo-test.h" + +#define WIDTH 45 +#define HEIGHT 30 + +static void +draw_L_shape (cairo_t *cr) +{ + cairo_move_to (cr, 0, 0); + cairo_rel_line_to (cr, 0, 10); + cairo_rel_line_to (cr, 5, 0); + + cairo_save (cr); + cairo_identity_matrix (cr); + cairo_set_line_width (cr, 2.0); + cairo_stroke (cr); + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* We draw in the default black, so paint white first. */ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_translate (cr, 5, 5); + + draw_L_shape (cr); + + cairo_translate (cr, 10, 0); + + cairo_save (cr); + { + cairo_scale (cr, 2, 2); + draw_L_shape (cr); + } + cairo_restore (cr); + + cairo_translate (cr, 15, 0); + + cairo_save (cr); + { + cairo_rotate (cr, M_PI / 2.0); + draw_L_shape (cr); + } + cairo_restore (cr); + + cairo_translate (cr, 5, 0); + + cairo_save (cr); + { + cairo_matrix_t skew_y = { + 1, -1, + 0, 1, + 0, 0 + }; + cairo_transform (cr, &skew_y); + draw_L_shape (cr); + } + cairo_restore (cr); + + cairo_translate (cr, 5, 10); + + cairo_save (cr); + { + cairo_matrix_t skew_x = { + 1.0, 0.0, + -0.5, 1.0, + 0.0, 0.0 + }; + cairo_transform (cr, &skew_x); + draw_L_shape (cr); + } + cairo_restore (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (transforms, + "Test various transformations.", + "transforms, api", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/translate-show-surface.c b/local/recipes/libs/cairo/source/test/translate-show-surface.c new file mode 100644 index 0000000000..9f7af8db2e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/translate-show-surface.c @@ -0,0 +1,79 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +/* Bug history + * + * 2005-04-11 Carl Worth + * + * It appears that calling cairo_show_surface after cairo_translate + * somehow applies the translation twice to the surface being + * shown. This is pretty easy to demonstrate by bringing up xsvg on + * an SVG file with an and panning around a bit with the + * arrow keys. + * + * This is almost certainly a regression, and I suspect there may be + * some interaction with the fix for move-to-show-surface. + * + * 2005-04-12 Carl Worth + * + * I committed a fix for this bug today. + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + uint32_t colors[4] = { + 0xffffffff, 0xffff0000, + 0xff00ff00, 0xff0000ff + }; + int i; + + for (i=0; i < 4; i++) { + surface = cairo_image_surface_create_for_data ((unsigned char *) &colors[i], + CAIRO_FORMAT_RGB24, + 1, 1, 4); + cairo_save (cr); + { + cairo_translate (cr, i % 2, i / 2); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_paint (cr); + } + cairo_restore (cr); + cairo_surface_finish (surface); /* colors will go out of scope */ + cairo_surface_destroy (surface); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (translate_show_surface, + "Tests calls to cairo_show_surface after cairo_translate", + "transform", /* keywords */ + NULL, /* requirements */ + 2, 2, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/trap-clip.c b/local/recipes/libs/cairo/source/test/trap-clip.c new file mode 100644 index 0000000000..f1a24ca8de --- /dev/null +++ b/local/recipes/libs/cairo/source/test/trap-clip.c @@ -0,0 +1,213 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Kristian Høgsberg + */ + +#include "cairo-test.h" +#include +#include + +#define WIDTH 16 +#define HEIGHT 16 +#define PAD 2 + +static const char *png_filename = "romedalen.png"; +static cairo_surface_t *image; + +static void +set_solid_pattern (const cairo_test_context_t *ctx, cairo_t *cr, int x, int y) +{ + cairo_set_source_rgb (cr, 0, 0, 0.6); +} + +static void +set_translucent_pattern (const cairo_test_context_t *ctx, cairo_t *cr, int x, int y) +{ + cairo_set_source_rgba (cr, 0, 0, 0.6, 0.5); +} + +static void +set_gradient_pattern (const cairo_test_context_t *ctx, cairo_t *cr, int x, int y) +{ + cairo_pattern_t *pattern; + + pattern = + cairo_pattern_create_linear (x, y, x + WIDTH, y + HEIGHT); + cairo_pattern_add_color_stop_rgba (pattern, 0, 1, 1, 1, 1); + cairo_pattern_add_color_stop_rgba (pattern, 1, 0, 0, 0.4, 1); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); +} + +static void +set_image_pattern (const cairo_test_context_t *ctx, cairo_t *cr, int x, int y) +{ + cairo_pattern_t *pattern; + + if (image == NULL || cairo_surface_status (image)) { + cairo_surface_destroy (image); + image = cairo_test_create_surface_from_png (ctx, png_filename); + } + + pattern = cairo_pattern_create_for_surface (image); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); +} + +static void +draw_rect (cairo_t *cr, int x, int y) +{ + cairo_new_path (cr); + cairo_rectangle (cr, x, y, WIDTH, HEIGHT); + cairo_fill (cr); +} + +static void +draw_rects (cairo_t *cr, int x, int y) +{ + int width = WIDTH / 3; + int height = HEIGHT / 2; + + cairo_new_path (cr); + cairo_rectangle (cr, x, y, width, height); + cairo_rectangle (cr, x + width, y + height, width, height); + cairo_rectangle (cr, x + 2 * width, y, width, height); + cairo_fill (cr); +} + +static void +draw_polygon (cairo_t *cr, int x, int y) +{ + cairo_new_path (cr); + cairo_move_to (cr, x, y); + cairo_line_to (cr, x, y + HEIGHT); + cairo_line_to (cr, x + WIDTH / 2, y + 3 * HEIGHT / 4); + cairo_line_to (cr, x + WIDTH, y + HEIGHT); + cairo_line_to (cr, x + WIDTH, y); + cairo_line_to (cr, x + WIDTH / 2, y + HEIGHT / 4); + cairo_close_path (cr); + cairo_fill (cr); +} + +static void +clip_none (cairo_t *cr, int x, int y) +{ +} + +static void +clip_rect (cairo_t *cr, int x, int y) +{ + cairo_new_path (cr); + cairo_rectangle (cr, x + (int)WIDTH / 6, y + (int)HEIGHT / 6, + 4 * ((int)WIDTH / 6), 4 * ((int)WIDTH / 6)); + cairo_clip (cr); + cairo_new_path (cr); +} + +static void +clip_rects (cairo_t *cr, int x, int y) +{ + int height = HEIGHT / 3; + + cairo_new_path (cr); + cairo_rectangle (cr, x, y, WIDTH, height); + cairo_rectangle (cr, x, y + 2 * height, WIDTH, height); + cairo_clip (cr); + cairo_new_path (cr); +} + +static void +clip_circle (cairo_t *cr, int x, int y) +{ + cairo_new_path (cr); + cairo_arc (cr, x + WIDTH / 2, y + HEIGHT / 2, + WIDTH / 3, 0, 2 * M_PI); + cairo_clip (cr); + cairo_new_path (cr); +} + +static void (* const pattern_funcs[])(const cairo_test_context_t *ctx, cairo_t *cr, int x, int y) = { + set_solid_pattern, + set_translucent_pattern, + set_gradient_pattern, + set_image_pattern, +}; + +static void (* const draw_funcs[])(cairo_t *cr, int x, int y) = { + draw_rect, + draw_rects, + draw_polygon, +}; + +static void (* const clip_funcs[])(cairo_t *cr, int x, int y) = { + clip_none, + clip_rect, + clip_rects, + clip_circle, +}; + +#define IMAGE_WIDTH (ARRAY_LENGTH (pattern_funcs) * (WIDTH + PAD) + PAD) +#define IMAGE_HEIGHT (ARRAY_LENGTH (draw_funcs) * ARRAY_LENGTH (clip_funcs) * (HEIGHT + PAD) + PAD) + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + size_t i, j, k, x, y; + + for (k = 0; k < ARRAY_LENGTH (clip_funcs); k++) { + for (j = 0; j < ARRAY_LENGTH (draw_funcs); j++) { + for (i = 0; i < ARRAY_LENGTH (pattern_funcs); i++) { + x = i * (WIDTH + PAD) + PAD; + y = (ARRAY_LENGTH (draw_funcs) * k + j) * (HEIGHT + PAD) + PAD; + + cairo_save (cr); + + cairo_move_to (cr, x, y); + clip_funcs[k] (cr, x, y); + pattern_funcs[i] (ctx, cr, x, y); + draw_funcs[j] (cr, x, y); + if (cairo_status (cr)) + cairo_test_log (ctx, "%d %d HERE!\n", (int)i, (int)j); + + cairo_restore (cr); + } + } + } + + if (cairo_status (cr) != CAIRO_STATUS_SUCCESS) + cairo_test_log (ctx, "%d %d .HERE!\n", (int)i, (int)j); + + cairo_surface_destroy (image); + image = NULL; + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (trap_clip, + "Trapezoid clipping", + "clip, trap", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/twin-antialias-gray.c b/local/recipes/libs/cairo/source/test/twin-antialias-gray.c new file mode 100644 index 0000000000..8e00370b0e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/twin-antialias-gray.c @@ -0,0 +1,71 @@ +/* + * Copyright 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_font_options_t *options; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_set_antialias (cr, CAIRO_ANTIALIAS_GRAY); + + cairo_select_font_face (cr, + "@cairo:", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + options = cairo_font_options_create (); + cairo_font_options_set_antialias (options, CAIRO_ANTIALIAS_GRAY); + cairo_set_font_options (cr, options); + cairo_font_options_destroy (options); + + cairo_set_font_size (cr, 16); + + cairo_move_to (cr, 4, 14); + cairo_show_text (cr, "Is cairo's twin giza?"); + + cairo_move_to (cr, 4, 34); + cairo_text_path (cr, "Is cairo's twin giza?"); + cairo_fill (cr); + + cairo_move_to (cr, 4, 54); + cairo_text_path (cr, "Is cairo's twin giza?"); + cairo_set_line_width (cr, 2/16.); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (twin_antialias_gray, + "Tests the internal font (with antialiasing reduced)", + "twin, font", /* keywords */ + "target=raster", /* requirements */ + 140, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/twin-antialias-mixed.c b/local/recipes/libs/cairo/source/test/twin-antialias-mixed.c new file mode 100644 index 0000000000..da4121a1d4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/twin-antialias-mixed.c @@ -0,0 +1,97 @@ +/* + * Copyright 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_scaled_font_t * +create_twin (cairo_t *cr, cairo_antialias_t antialias) +{ + cairo_font_options_t *options; + + cairo_select_font_face (cr, + "@cairo:", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + options = cairo_font_options_create (); + cairo_font_options_set_antialias (options, antialias); + cairo_set_font_options (cr, options); + cairo_font_options_destroy (options); + + return cairo_scaled_font_reference (cairo_get_scaled_font (cr)); +} + + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_scaled_font_t *subpixel, *gray, *none; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_set_font_size (cr, 16); + subpixel = create_twin (cr, CAIRO_ANTIALIAS_SUBPIXEL); + gray = create_twin (cr, CAIRO_ANTIALIAS_GRAY); + none = create_twin (cr, CAIRO_ANTIALIAS_NONE); + + cairo_move_to (cr, 4, 14); + cairo_set_scaled_font (cr, subpixel); + cairo_show_text (cr, "Is cairo's"); + cairo_set_scaled_font (cr, gray); + cairo_show_text (cr, " twin"); + cairo_set_scaled_font (cr, none); + cairo_show_text (cr, " giza?"); + + cairo_move_to (cr, 4, 34); + cairo_set_scaled_font (cr, gray); + cairo_show_text (cr, "Is cairo's"); + cairo_set_scaled_font (cr, none); + cairo_show_text (cr, " twin"); + cairo_set_scaled_font (cr, subpixel); + cairo_show_text (cr, " giza?"); + + cairo_move_to (cr, 4, 54); + cairo_set_scaled_font (cr, none); + cairo_show_text (cr, "Is cairo's"); + cairo_set_scaled_font (cr, gray); + cairo_show_text (cr, " twin"); + cairo_set_scaled_font (cr, subpixel); + cairo_show_text (cr, " giza?"); + + cairo_scaled_font_destroy (none); + cairo_scaled_font_destroy (gray); + cairo_scaled_font_destroy (subpixel); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (twin_antialias_mixed, + "Tests the internal font (with intermixed antialiasing)", + "twin, font", /* keywords */ + "target=raster", /* requirements */ + 140, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/twin-antialias-none.c b/local/recipes/libs/cairo/source/test/twin-antialias-none.c new file mode 100644 index 0000000000..a5b713db3c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/twin-antialias-none.c @@ -0,0 +1,71 @@ +/* + * Copyright 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_font_options_t *options; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + cairo_select_font_face (cr, + "@cairo:", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + options = cairo_font_options_create (); + cairo_font_options_set_antialias (options, CAIRO_ANTIALIAS_NONE); + cairo_set_font_options (cr, options); + cairo_font_options_destroy (options); + + cairo_set_font_size (cr, 16); + + cairo_move_to (cr, 4, 14); + cairo_show_text (cr, "Is cairo's twin giza?"); + + cairo_move_to (cr, 4, 34); + cairo_text_path (cr, "Is cairo's twin giza?"); + cairo_fill (cr); + + cairo_move_to (cr, 4, 54); + cairo_text_path (cr, "Is cairo's twin giza?"); + cairo_set_line_width (cr, 2/16.); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (twin_antialias_none, + "Tests the internal font (with antialiasing disabled)", + "twin, font", /* keywords */ + "target=raster", /* requirements */ + 140, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/twin-antialias-subpixel.c b/local/recipes/libs/cairo/source/test/twin-antialias-subpixel.c new file mode 100644 index 0000000000..e0262863ca --- /dev/null +++ b/local/recipes/libs/cairo/source/test/twin-antialias-subpixel.c @@ -0,0 +1,71 @@ +/* + * Copyright 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_font_options_t *options; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_set_antialias (cr, CAIRO_ANTIALIAS_SUBPIXEL); + + cairo_select_font_face (cr, + "@cairo:", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + options = cairo_font_options_create (); + cairo_font_options_set_antialias (options, CAIRO_ANTIALIAS_SUBPIXEL); + cairo_set_font_options (cr, options); + cairo_font_options_destroy (options); + + cairo_set_font_size (cr, 16); + + cairo_move_to (cr, 4, 14); + cairo_show_text (cr, "Is cairo's twin giza?"); + + cairo_move_to (cr, 4, 34); + cairo_text_path (cr, "Is cairo's twin giza?"); + cairo_fill (cr); + + cairo_move_to (cr, 4, 54); + cairo_text_path (cr, "Is cairo's twin giza?"); + cairo_set_line_width (cr, 2/16.); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (twin_antialias_subpixel, + "Tests the internal font (with subpixel antialiasing)", + "twin, font", /* keywords */ + "target=raster", /* requirements */ + 140, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/twin.c b/local/recipes/libs/cairo/source/test/twin.c new file mode 100644 index 0000000000..08865f0770 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/twin.c @@ -0,0 +1,61 @@ +/* + * Copyright 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_select_font_face (cr, + "@cairo:", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, 16); + + cairo_move_to (cr, 4, 14); + cairo_show_text (cr, "Is cairo's twin giza?"); + + cairo_move_to (cr, 4, 34); + cairo_text_path (cr, "Is cairo's twin giza?"); + cairo_fill (cr); + + cairo_move_to (cr, 4, 54); + cairo_text_path (cr, "Is cairo's twin giza?"); + cairo_set_line_width (cr, 2/16.); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (twin, + "Tests the internal font", + "twin, font", /* keywords */ + NULL, /* requirements */ + 140, 60, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/unaligned-box.c b/local/recipes/libs/cairo/source/test/unaligned-box.c new file mode 100644 index 0000000000..5526919344 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/unaligned-box.c @@ -0,0 +1,73 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define WIDTH 48 +#define HEIGHT 52 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int sx, sy; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + + cairo_translate(cr, 2, 2); + + for (sx = 1; sx <= 4; sx++) { + cairo_save (cr); + for (sy = 1; sy <= 4; sy++) { + cairo_rectangle (cr, 0, 0, sx, sy); + cairo_fill (cr); + + cairo_rectangle (cr, sx + 1 + .5, 0, sx, sy); + cairo_fill (cr); + + cairo_rectangle (cr, 0, sy + 1 + .5, sx, sy); + cairo_fill (cr); + + cairo_rectangle (cr, sx + 1 + .5, sy + 1 + .5, sx-.5, sy-.5); + cairo_fill (cr); + + cairo_translate (cr, 2*sx + 3, 0); + } + cairo_restore (cr); + cairo_translate (cr, 0, 2*sy + 3); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (unaligned_box, + "Tests handling of various boundary conditions for unaligned rectangles.", + "fill", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/unantialiased-shapes.c b/local/recipes/libs/cairo/source/test/unantialiased-shapes.c new file mode 100644 index 0000000000..b53ed0d6ec --- /dev/null +++ b/local/recipes/libs/cairo/source/test/unantialiased-shapes.c @@ -0,0 +1,98 @@ +/* + * Copyright © 2005 Billy Biggs + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Billy Biggs not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Billy Biggs makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * BILLY BIGGS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL BILLY BIGGS BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Billy Biggs + */ + +#include "cairo-test.h" + +/* The star shape from the SVG test suite, from the fill rule test */ +static void +big_star_path (cairo_t *cr) +{ + cairo_move_to (cr, 40, 0); + cairo_rel_line_to (cr, 25, 80); + cairo_rel_line_to (cr, -65, -50); + cairo_rel_line_to (cr, 80, 0); + cairo_rel_line_to (cr, -65, 50); + cairo_close_path (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + /* Try a circle */ + cairo_arc (cr, 40, 40, 20, 0, 2 * M_PI); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_fill (cr); + + /* Try using clipping to draw a circle */ + cairo_arc (cr, 100, 40, 20, 0, 2 * M_PI); + cairo_clip (cr); + cairo_rectangle (cr, 80, 20, 40, 40); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_fill (cr); + + /* Reset the clipping */ + cairo_reset_clip (cr); + + /* Draw a bunch of lines */ + cairo_set_line_width (cr, 1.0); + cairo_set_source_rgb (cr, 0, 1, 0); + for (i = 0; i < 10; i++) { + cairo_move_to (cr, 10, 70 + (i * 4)); + cairo_line_to (cr, 120, 70 + (i * 18)); + cairo_stroke (cr); + } + + /* Try filling a poly */ + cairo_translate (cr, 160, 120); + cairo_set_source_rgb (cr, 1, 1, 0); + big_star_path (cr); + cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD); + cairo_fill (cr); + cairo_translate (cr, -160, -120); + + /* How about some curves? */ + cairo_set_source_rgb (cr, 1, 0, 1); + for (i = 0; i < 10; i++) { + cairo_move_to (cr, 150, 50 + (i * 5)); + cairo_curve_to (cr, 250, 50, 200, (i * 10), 300, 50 + (i * 10)); + cairo_stroke (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (unantialiased_shapes, + "Test shape drawing without antialiasing", + "fill, stroke", /* keywords */ + "target=raster", /* requirements */ + 320, 240, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/unbounded-operator.c b/local/recipes/libs/cairo/source/test/unbounded-operator.c new file mode 100644 index 0000000000..ac1c50d1d7 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/unbounded-operator.c @@ -0,0 +1,185 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Kristian Høgsberg + * Owen Taylor + */ + +#include "cairo-test.h" +#include +#include + +#define WIDTH 16 +#define HEIGHT 16 +#define PAD 2 + +static void +draw_mask (cairo_t *cr, int x, int y) +{ + cairo_surface_t *mask_surface; + cairo_t *cr2; + + double width = (int)(0.9 * WIDTH); + double height = (int)(0.9 * HEIGHT); + x += 0.05 * WIDTH; + y += 0.05 * HEIGHT; + + mask_surface = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, + width, height); + cr2 = cairo_create (mask_surface); + cairo_surface_destroy (mask_surface); + + cairo_save (cr2); + cairo_set_source_rgba (cr2, 0, 0, 0, 0); /* transparent */ + cairo_set_operator (cr2, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr2); + cairo_restore (cr2); + + cairo_set_source_rgb (cr2, 1, 1, 1); /* white */ + + cairo_arc (cr2, 0.5 * width, 0.5 * height, 0.45 * height, 0, 2 * M_PI); + cairo_fill (cr2); + + cairo_mask_surface (cr, cairo_get_target (cr2), x, y); + cairo_destroy (cr2); +} + +static void +draw_glyphs (cairo_t *cr, int x, int y) +{ + cairo_text_extents_t extents; + + cairo_set_font_size (cr, 0.8 * HEIGHT); + + cairo_text_extents (cr, "FG", &extents); + cairo_move_to (cr, + x + floor ((WIDTH - extents.width) / 2 + 0.5) - extents.x_bearing, + y + floor ((HEIGHT - extents.height) / 2 + 0.5) - extents.y_bearing); + cairo_show_text (cr, "FG"); +} + +static void +draw_polygon (cairo_t *cr, int x, int y) +{ + double width = (int)(0.9 * WIDTH); + double height = (int)(0.9 * HEIGHT); + x += 0.05 * WIDTH; + y += 0.05 * HEIGHT; + + cairo_new_path (cr); + cairo_move_to (cr, x, y); + cairo_line_to (cr, x, y + height); + cairo_line_to (cr, x + width / 2, y + 3 * height / 4); + cairo_line_to (cr, x + width, y + height); + cairo_line_to (cr, x + width, y); + cairo_line_to (cr, x + width / 2, y + height / 4); + cairo_close_path (cr); + cairo_fill (cr); +} + +static void +draw_rects (cairo_t *cr, int x, int y) +{ + double block_width = (int)(0.33 * WIDTH + 0.5); + double block_height = (int)(0.33 * HEIGHT + 0.5); + int i, j; + + for (i = 0; i < 3; i++) + for (j = 0; j < 3; j++) + if ((i + j) % 2 == 0) + cairo_rectangle (cr, + x + block_width * i, y + block_height * j, + block_width, block_height); + + cairo_fill (cr); +} + +static void (*const draw_funcs[])(cairo_t *cr, int x, int y) = { + draw_mask, + draw_glyphs, + draw_polygon, + draw_rects +}; + +static cairo_operator_t operators[] = { + CAIRO_OPERATOR_IN, CAIRO_OPERATOR_OUT, + CAIRO_OPERATOR_DEST_IN, CAIRO_OPERATOR_DEST_ATOP +}; + +#define IMAGE_WIDTH (ARRAY_LENGTH (operators) * (WIDTH + PAD) + PAD) +#define IMAGE_HEIGHT (ARRAY_LENGTH (draw_funcs) * (HEIGHT + PAD) + PAD) + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + size_t i, j, x, y; + cairo_pattern_t *pattern; + + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + for (j = 0; j < ARRAY_LENGTH (draw_funcs); j++) { + for (i = 0; i < ARRAY_LENGTH (operators); i++) { + x = i * (WIDTH + PAD) + PAD; + y = j * (HEIGHT + PAD) + PAD; + + cairo_save (cr); + + pattern = cairo_pattern_create_linear (x + WIDTH, y, + x, y + HEIGHT); + cairo_pattern_add_color_stop_rgba (pattern, 0.2, + 0.0, 0.0, 1.0, 1.0); /* Solid blue */ + cairo_pattern_add_color_stop_rgba (pattern, 0.8, + 0.0, 0.0, 1.0, 0.0); /* Transparent blue */ + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + cairo_rectangle (cr, x, y, WIDTH, HEIGHT); + cairo_fill_preserve (cr); + cairo_clip (cr); + + cairo_set_operator (cr, operators[i]); + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + + draw_funcs[j] (cr, x, y); + if (cairo_status (cr)) + cairo_test_log (ctx, "%d %d HERE!\n", (int)i, (int)j); + + cairo_restore (cr); + } + } + + if (cairo_status (cr) != CAIRO_STATUS_SUCCESS) + cairo_test_log (ctx, "%d %d .HERE!\n", (int)i, (int)j); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (unbounded_operator, + "Operators with an effect for transparent source/mask", + "operator", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/unclosed-strokes.c b/local/recipes/libs/cairo/source/test/unclosed-strokes.c new file mode 100644 index 0000000000..40a76eb6ba --- /dev/null +++ b/local/recipes/libs/cairo/source/test/unclosed-strokes.c @@ -0,0 +1,83 @@ +/* + * Copyright © 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" + +#define LINE_WIDTH 10. +#define SIZE (5 * LINE_WIDTH) +#define PAD (2 * LINE_WIDTH) + +static void +make_path (cairo_t *cr) +{ + cairo_move_to (cr, 0, 0); + cairo_rel_line_to (cr, -SIZE/2, SIZE); + cairo_rel_line_to (cr, SIZE, 0); + /* back to the start, but do not close */ + cairo_rel_line_to (cr, -SIZE/2, -SIZE); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_save (cr); + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_restore (cr); + + cairo_set_line_width (cr, LINE_WIDTH); + cairo_translate (cr, PAD + SIZE / 2., PAD); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); + make_path (cr); + cairo_stroke (cr); + + cairo_translate (cr, 0, SIZE + PAD); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + make_path (cr); + cairo_stroke (cr); + + cairo_translate (cr, 0, SIZE + PAD); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + make_path (cr); + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (unclosed_strokes, + "Test coincident end-points are capped and not joined", + "stroke, caps", /* keywords */ + NULL, /* requirements */ + PAD + SIZE + PAD, + 3 * (PAD + SIZE) + PAD, + NULL, draw) + diff --git a/local/recipes/libs/cairo/source/test/update-refs.sh b/local/recipes/libs/cairo/source/test/update-refs.sh new file mode 100755 index 0000000000..104eeb8d95 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/update-refs.sh @@ -0,0 +1,84 @@ +#!/bin/bash + +# This script can be used to update the reference images using certain +# test results as a baseline. +# +# Our test suite expects nearly pixel-perfection, but in some cases we +# give the renderer some flexibility and so these cases will show up as +# test failures. So, this script can be used to do a visual check and +# if they "look" ok, to go ahead and update the reference image by +# copying the test output. +# +# NOTE: When adding to this file, make sure to thoroughly document the +# rationale when and why the existing reference images can be updated +# from regular test output, such that people other than you can +# intelligently keep the test reference images updated. + +if [ ! -d output ] || [ ! -d reference ]; then + echo "This script must be run in cairo's test directory after the full testsuite has been run." + exit +fi + +PDIFF="./pdiff/perceptualdiff" + +# Returns 1 if images are different, 0 if they're essentially identical +images_differ() { + # Check if bytewise identical + if cmp --silent "${1}" "${2}"; then + # Images are identical + return 0 + fi + + # Run perceptualdiff with minimum threshold + pdiff_output=$($PDIFF "${1}" "${2}" -threshold 1) + result=${pdiff_output%:*} + notes=$(echo "${pdiff_output#*: }" | tail -n 1) + if [ "$result" = "PASS" ] && [ "$notes" = "Images are binary identical" ]; then + return 0 + fi + + return 1 +} + +# ---------------------------------------------------------------------- +# pixman-downscale images +# +# The *-95 tests check rendering at a difficult to downsize dimension. +# The border pixels between different colored areas can be blurred in +# different ways resulting in some color variation that is acceptable +# but throws off the testsuite. So a visual check is sufficient to +# verify the results aren't crazily off. + +# Use the ARGB32 format of the image file as the main reference +for file in $(ls ./output/pixman-downscale-*-95.image.argb32.out.png); do + dest=$(basename ${file/.image.argb32.out./.ref.}) + echo "$file -> ./reference/${dest}" + cp $file ./reference/${dest} +done +echo + +# If the ARGB32 format of a given backend's file differs from the main reference, +# then use it as the backend reference +for file in $(ls ./output/pixman-downscale-*-95.*.argb32.out.png); do + ref=$(basename ${file/-95.*.argb32.out.png/-95.ref.png}) + if ! images_differ "./reference/${ref}" "${file}"; then + dest=$(basename ${file/.argb32.out.png/.ref.png}) + echo "${file} -> ./reference/${dest}" + cp ${file} ./reference/${dest} + fi +done +echo + +# If the RGB24 format differs from existing ref image, then use it as a ref. +for file in $(ls ./output/pixman-downscale-*-95.*.rgb24.out.png); do + ref=$(basename ${file/.rgb24.out.png/.ref.png}) + if [ ! -e "./reference/${ref}" ]; then + ref=$(basename ${file/-95.*.rgb24.out.png/-95.ref.png}) + fi + + if ! images_differ "./reference/${ref}" "${file}"; then + dest=$(basename ${file/.rgb24.out.png/.rgb24.ref.png}) + echo "${file} -> ./reference/${dest}" + cp ${file} ./reference/${dest} + fi +done diff --git a/local/recipes/libs/cairo/source/test/user-data.c b/local/recipes/libs/cairo/source/test/user-data.c new file mode 100644 index 0000000000..532107aa2e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/user-data.c @@ -0,0 +1,110 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Kristian Høgsberg + */ + +#include "cairo-test.h" + +#include + +static void +destroy_data1 (void *p) +{ + *(int *) p = 1; +} + +static void +destroy_data2 (void *p) +{ + *(int *) p = 2; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + static const cairo_user_data_key_t key1, key2; + cairo_surface_t *surface; + cairo_status_t status; + int data1, data2; + + data1 = 0; + data2 = 0; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 1); + status = cairo_surface_set_user_data (surface, &key1, &data1, destroy_data1); + if (status) + goto error; + + status = cairo_surface_set_user_data (surface, &key2, &data2, destroy_data2); + if (status) + goto error; + + assert (cairo_surface_get_user_data (surface, &key1) == &data1); + status = cairo_surface_set_user_data (surface, &key1, NULL, NULL); + if (status) + goto error; + + assert (cairo_surface_get_user_data (surface, &key1) == NULL); + assert (data1 == 1); + assert (data2 == 0); + + status = cairo_surface_set_user_data (surface, &key2, NULL, NULL); + if (status) + goto error; + + assert (data2 == 2); + + data1 = 0; + status = cairo_surface_set_user_data (surface, &key1, &data1, NULL); + if (status) + goto error; + + status = cairo_surface_set_user_data (surface, &key1, NULL, NULL); + if (status) + goto error; + + assert (data1 == 0); + assert (cairo_surface_get_user_data (surface, &key1) == NULL); + + status = cairo_surface_set_user_data (surface, &key1, &data1, destroy_data1); + if (status) + goto error; + + cairo_surface_destroy (surface); + + assert (data1 == 1); + assert (data2 == 2); + + return CAIRO_TEST_SUCCESS; + +error: + cairo_surface_destroy (surface); + return cairo_test_status_from_status (ctx, status); +} + +CAIRO_TEST (user_data, + "Test setting and getting random bits of user data.", + "api", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/user-font-color.c b/local/recipes/libs/cairo/source/test/user-font-color.c new file mode 100644 index 0000000000..db8b6a1737 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/user-font-color.c @@ -0,0 +1,355 @@ +/* + * Copyright © 2006, 2008 Red Hat, Inc. + * Copyright © 2021 Adrian Johnson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Contributor(s): + * Kristian Høgsberg + * Behdad Esfahbod + */ + +/* Test that user-fonts can handle color and non-color glyphs in the + * same font. + */ + +#include "cairo-test.h" + +#include +#include +#include + + +#define BORDER 10 +#define TEXT_SIZE 64 +#define WIDTH (TEXT_SIZE * 11 + 2*BORDER) +#define HEIGHT (4*TEXT_SIZE + 5*BORDER) + +#define TEXT "abcdefghij" + +/* These characters will be drawn twice with a different foreground color */ +#define FG_TEXT "acfh" + +/* Uppercase draws the same text but forces the use of the non-color + * render callback */ +#define TEXT_NO_COLOR "ABCDEFGHIJ" +#define FG_TEXT_NO_COLOR "ACFH" + +#define TEXT_PATH "aabccdeffghhij" + + +static cairo_status_t +test_scaled_font_init (cairo_scaled_font_t *scaled_font, + cairo_t *cr, + cairo_font_extents_t *metrics) +{ + metrics->ascent = .75; + metrics->descent = .25; + return CAIRO_STATUS_SUCCESS; +} + +static void +render_glyph_solid (cairo_t *cr, + double width, + double height, + cairo_bool_t color, + cairo_scaled_font_t *scaled_font) +{ + if (color) + cairo_set_source_rgba (cr, 0.7, 0.2, 0.1, 0.9); + cairo_rectangle (cr, 0, 0, width/2, height/2); + cairo_fill (cr); + + if (color) { + if (scaled_font) + cairo_set_source (cr, cairo_user_scaled_font_get_foreground_marker (scaled_font)); + else + cairo_set_source_rgba (cr, 0.2, 0.5, 0.3, 0.9); + } + cairo_rectangle (cr, width/4, height/4, width/2, height/2); + cairo_fill (cr); + + if (color) + cairo_set_source_rgba (cr, 0.2, 0.3, 0.5, 0.9); + cairo_rectangle (cr, width/2, height/2, width/2, height/2); + cairo_fill (cr); +} + +static void +render_glyph_linear (cairo_t *cr, + double width, + double height, + cairo_bool_t color, + cairo_scaled_font_t *scaled_font) +{ + cairo_pattern_t *pat; + cairo_pattern_t *fg; + + pat = cairo_pattern_create_linear (0.0, 0.0, width, height); + if (scaled_font) { + double r, g, b, a; + + fg = cairo_user_scaled_font_get_foreground_source (scaled_font); + if (cairo_pattern_get_rgba (fg, &r, &g, &b, &a) != CAIRO_STATUS_SUCCESS) { + r = g = b = 0; + a = 1; + } + cairo_pattern_add_color_stop_rgba (pat, 0, r, g, b, a); + cairo_pattern_add_color_stop_rgb (pat, 1, 0, 0, 1); + } else { + cairo_pattern_add_color_stop_rgb (pat, 0, 1, 0.4, 0.2); + cairo_pattern_add_color_stop_rgb (pat, 0.5, 0.2, 1, 0.4); + cairo_pattern_add_color_stop_rgb (pat, 1, 0.2, 0.3, 1); + } + + cairo_set_source (cr, pat); + cairo_rectangle (cr, 0, 0, width, height); + cairo_fill (cr); +} + +static void +render_glyph_text (cairo_t *cr, double width, double height, cairo_bool_t color) +{ + cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size(cr, 0.5); + + if (color) + cairo_set_source_rgb (cr, 0.5, 0.7, 0); + cairo_move_to (cr, width*0.1, height/2); + cairo_show_text (cr, "a"); + + if (color) + cairo_set_source_rgb (cr, 0, 0.5, 0.7); + cairo_move_to (cr, width*0.4, height*0.9); + cairo_show_text (cr, "z"); +} + +static cairo_status_t +test_scaled_font_render_glyph_common (cairo_scaled_font_t *scaled_font, + unsigned long glyph, + cairo_t *cr, + cairo_text_extents_t *metrics, + cairo_bool_t color) +{ + double width = 0.5; + double height = 0.8; + + metrics->x_advance = 0.75; + cairo_translate (cr, 0.125, -0.6); + switch (glyph) { + case 'a': + render_glyph_solid (cr, width, height, color, scaled_font); + break; + case 'b': + render_glyph_solid (cr, width, height, color, NULL); + break; + case 'c': + render_glyph_linear (cr, width, height, color, scaled_font); + break; + case 'd': + render_glyph_linear (cr, width, height, color, NULL); + break; + case 'e': + render_glyph_text (cr, width, height, color); + break; + case 'f': + cairo_push_group (cr); + render_glyph_solid (cr, width, height, color, scaled_font); + cairo_pop_group_to_source (cr); + cairo_paint (cr); + break; + case 'g': + cairo_push_group (cr); + render_glyph_solid (cr, width, height, color, NULL); + cairo_pop_group_to_source (cr); + cairo_paint (cr); + break; + case 'h': + cairo_push_group (cr); + render_glyph_linear (cr, width, height, color, scaled_font); + cairo_pop_group_to_source (cr); + cairo_paint (cr); + break; + case 'i': + cairo_push_group (cr); + render_glyph_linear (cr, width, height, color, NULL); + cairo_pop_group_to_source (cr); + cairo_paint (cr); + break; + case 'j': + cairo_push_group (cr); + render_glyph_text (cr, width, height, color); + cairo_pop_group_to_source (cr); + cairo_paint (cr); + break; + } + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +test_scaled_font_render_color_glyph_callback (cairo_scaled_font_t *scaled_font, + unsigned long glyph, + cairo_t *cr, + cairo_text_extents_t *metrics) +{ + if (isupper(glyph)) + return CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED; + + return test_scaled_font_render_glyph_common (scaled_font, glyph, cr, metrics, TRUE); +} + +static cairo_status_t +test_scaled_font_render_glyph_callback (cairo_scaled_font_t *scaled_font, + unsigned long glyph, + cairo_t *cr, + cairo_text_extents_t *metrics) +{ + int c = glyph; + if (isupper(c)) + c = tolower(c); + + return test_scaled_font_render_glyph_common (scaled_font, c, cr, metrics, FALSE); +} + +static cairo_status_t +_user_font_face_create (cairo_font_face_t **out) +{ + + cairo_font_face_t *user_font_face; + + user_font_face = cairo_user_font_face_create (); + cairo_user_font_face_set_init_func (user_font_face, test_scaled_font_init); + cairo_user_font_face_set_render_color_glyph_func (user_font_face, + test_scaled_font_render_color_glyph_callback); + cairo_user_font_face_set_render_glyph_func (user_font_face, + test_scaled_font_render_glyph_callback); + + *out = user_font_face; + return CAIRO_STATUS_SUCCESS; +} + +/* Any text characters that are in fg_text will be drawn with a different color */ +static void +draw_line (cairo_t *cr, const char *text, const char *fg_text) +{ + char buf[10]; + + for (unsigned i = 0; i < strlen(text); i++) { + buf[0] = text[i]; + buf[1] = 0; + + if (strchr (fg_text, text[i])) { + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_show_text (cr, buf); + } + + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_show_text (cr, buf); + } +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_font_face_t *font_face; + const char text[] = TEXT; + cairo_font_extents_t font_extents; + cairo_text_extents_t extents; + cairo_status_t status; + cairo_font_options_t *font_options; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + status = _user_font_face_create (&font_face); + if (status) { + return cairo_test_status_from_status (cairo_test_get_context (cr), + status); + } + + cairo_set_font_face (cr, font_face); + cairo_font_face_destroy (font_face); + + cairo_set_font_size (cr, TEXT_SIZE); + + cairo_font_extents (cr, &font_extents); + cairo_text_extents (cr, text, &extents); + + /* logical boundaries in red */ + cairo_move_to (cr, 0, BORDER); + cairo_rel_line_to (cr, WIDTH, 0); + cairo_move_to (cr, 0, BORDER + font_extents.ascent); + cairo_rel_line_to (cr, WIDTH, 0); + cairo_move_to (cr, 0, BORDER + font_extents.ascent + font_extents.descent); + cairo_rel_line_to (cr, WIDTH, 0); + cairo_move_to (cr, BORDER, 0); + cairo_rel_line_to (cr, 0, 2*BORDER + TEXT_SIZE); + cairo_move_to (cr, BORDER + extents.x_advance, 0); + cairo_rel_line_to (cr, 0, 2*BORDER + TEXT_SIZE); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, 2); + cairo_stroke (cr); + + /* ink boundaries in green */ + cairo_rectangle (cr, + BORDER + extents.x_bearing, BORDER + font_extents.ascent + extents.y_bearing, + extents.width, extents.height); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_set_line_width (cr, 2); + cairo_stroke (cr); + + /* Line 1: text in color */ + cairo_move_to (cr, BORDER, BORDER + font_extents.ascent); + draw_line (cr, TEXT, FG_TEXT); + + /* Line 2: text in non-color (color render callback returns + * CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED. + */ + cairo_move_to (cr, BORDER, BORDER + font_extents.height + 1*BORDER + font_extents.ascent); + draw_line (cr, TEXT_NO_COLOR, FG_TEXT_NO_COLOR); + + /* Line 3: Filled version of color text in blue */ + cairo_move_to (cr, BORDER, BORDER + 2*font_extents.height + 2*BORDER + font_extents.ascent); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_text_path (cr, TEXT_PATH); + cairo_fill (cr); + + /* Line 4: color glyphs with CAIRO_COLOR_MODE_NO_COLOR font option. */ + font_options = cairo_font_options_create (); + cairo_get_font_options (cr, font_options); + cairo_font_options_set_color_mode (font_options, CAIRO_COLOR_MODE_NO_COLOR); + cairo_set_font_options (cr, font_options); + cairo_font_options_destroy (font_options); + + cairo_move_to (cr, BORDER, BORDER + 3*font_extents.height + 3*BORDER + font_extents.ascent); + draw_line (cr, TEXT, FG_TEXT); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (user_font_color, + "Tests user font color feature", + "font, user-font", /* keywords */ + "cairo >= 1.17.4", /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/user-font-mask.c b/local/recipes/libs/cairo/source/test/user-font-mask.c new file mode 100644 index 0000000000..cf548e6496 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/user-font-mask.c @@ -0,0 +1,253 @@ +/* + * Copyright © 2006, 2008 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Contributor(s): + * Kristian Høgsberg + * Behdad Esfahbod + * Adrian Johnson + */ + +#include "cairo-test.h" + +#include +#include + +/*#define ROTATED 1*/ + +#define BORDER 10 +#define TEXT_SIZE 64 +#define WIDTH (TEXT_SIZE * 15 + 2*BORDER) +#ifndef ROTATED + #define HEIGHT ((TEXT_SIZE + 2*BORDER)*2) +#else + #define HEIGHT WIDTH +#endif +#define END_GLYPH 0 +#define TEXT "cairo" + +/* Reverse the bits in a byte with 7 operations (no 64-bit): + * Devised by Sean Anderson, July 13, 2001. + * Source: http://graphics.stanford.edu/~seander/bithacks.html#ReverseByteWith32Bits + */ +#define CAIRO_BITSWAP8(c) ((((c) * 0x0802LU & 0x22110LU) | ((c) * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16) + +#ifdef WORDS_BIGENDIAN +#define CAIRO_BITSWAP8_IF_LITTLE_ENDIAN(c) (c) +#else +#define CAIRO_BITSWAP8_IF_LITTLE_ENDIAN(c) CAIRO_BITSWAP8(c) +#endif + + + +/* Simple glyph definition. data is an 8x8 bitmap. + */ +typedef struct { + unsigned long ucs4; + int width; + char data[8]; +} test_scaled_font_glyph_t; + +static cairo_user_data_key_t test_font_face_glyphs_key; + +static cairo_status_t +test_scaled_font_init (cairo_scaled_font_t *scaled_font, + cairo_t *cr, + cairo_font_extents_t *metrics) +{ + metrics->ascent = 1; + metrics->descent = 0; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +test_scaled_font_unicode_to_glyph (cairo_scaled_font_t *scaled_font, + unsigned long unicode, + unsigned long *glyph) +{ + test_scaled_font_glyph_t *glyphs = cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font), + &test_font_face_glyphs_key); + int i; + + for (i = 0; glyphs[i].ucs4 != (unsigned long) -1; i++) + if (glyphs[i].ucs4 == unicode) { + *glyph = i; + return CAIRO_STATUS_SUCCESS; + } + + /* Not found. Default to glyph 0 */ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +test_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font, + unsigned long glyph, + cairo_t *cr, + cairo_text_extents_t *metrics) +{ + test_scaled_font_glyph_t *glyphs = cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font), + &test_font_face_glyphs_key); + int i; + unsigned char *data; + cairo_surface_t *image; + cairo_pattern_t *pattern; + cairo_matrix_t matrix; + uint8_t byte; + + /* FIXME: We simply crash on out-of-bound glyph indices */ + + metrics->x_advance = (glyphs[glyph].width + 1) / 8.0; + + image = cairo_image_surface_create (CAIRO_FORMAT_A1, glyphs[glyph].width, 8); + if (cairo_surface_status (image)) + return cairo_surface_status (image); + + data = cairo_image_surface_get_data (image); + for (i = 0; i < 8; i++) { + byte = glyphs[glyph].data[i]; + *data = CAIRO_BITSWAP8_IF_LITTLE_ENDIAN (byte); + data += cairo_image_surface_get_stride (image); + } + cairo_surface_mark_dirty (image); + + pattern = cairo_pattern_create_for_surface (image); + cairo_surface_destroy (image); + + cairo_matrix_init_identity (&matrix); + cairo_matrix_scale (&matrix, 1.0/8.0, 1.0/8.0); + cairo_matrix_translate (&matrix, 0, -8); + cairo_matrix_invert (&matrix); + cairo_pattern_set_matrix (pattern, &matrix); + + cairo_set_source (cr, pattern); + cairo_mask (cr, pattern); + cairo_pattern_destroy (pattern); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_user_font_face_create (cairo_font_face_t **out) +{ + static const test_scaled_font_glyph_t glyphs [] = { + { 'c', 6, { 0x00, 0x38, 0x44, 0x80, 0x80, 0x80, 0x44, 0x38 } }, + { 'a', 6, { 0x00, 0x70, 0x88, 0x3c, 0x44, 0x84, 0x8c, 0x74 } }, + { 'i', 1, { 0x80, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80 } }, + { 'r', 6, { 0x00, 0xb8, 0xc4, 0x80, 0x80, 0x80, 0x80, 0x80 } }, + { 'o', 7, { 0x00, 0x38, 0x44, 0x82, 0x82, 0x82, 0x44, 0x38 } }, + { -1, 8, { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } }, + }; + + cairo_font_face_t *user_font_face; + cairo_status_t status; + + user_font_face = cairo_user_font_face_create (); + cairo_user_font_face_set_init_func (user_font_face, test_scaled_font_init); + cairo_user_font_face_set_render_glyph_func (user_font_face, test_scaled_font_render_glyph); + cairo_user_font_face_set_unicode_to_glyph_func (user_font_face, test_scaled_font_unicode_to_glyph); + + status = cairo_font_face_set_user_data (user_font_face, + &test_font_face_glyphs_key, + (void*) glyphs, NULL); + if (status) { + cairo_font_face_destroy (user_font_face); + return status; + } + + *out = user_font_face; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_font_face_t *font_face; + const char text[] = TEXT; + cairo_font_extents_t font_extents; + cairo_text_extents_t extents; + cairo_status_t status; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + +#ifdef ROTATED + cairo_translate (cr, TEXT_SIZE, 0); + cairo_rotate (cr, .6); +#endif + + status = _user_font_face_create (&font_face); + if (status) { + return cairo_test_status_from_status (cairo_test_get_context (cr), + status); + } + + cairo_set_font_face (cr, font_face); + cairo_font_face_destroy (font_face); + + cairo_set_font_size (cr, TEXT_SIZE); + + cairo_font_extents (cr, &font_extents); + cairo_text_extents (cr, text, &extents); + + /* logical boundaries in red */ + cairo_move_to (cr, 0, BORDER); + cairo_rel_line_to (cr, WIDTH, 0); + cairo_move_to (cr, 0, BORDER + font_extents.ascent); + cairo_rel_line_to (cr, WIDTH, 0); + cairo_move_to (cr, 0, BORDER + font_extents.ascent + font_extents.descent); + cairo_rel_line_to (cr, WIDTH, 0); + cairo_move_to (cr, BORDER, 0); + cairo_rel_line_to (cr, 0, 2*BORDER + TEXT_SIZE); + cairo_move_to (cr, BORDER + extents.x_advance, 0); + cairo_rel_line_to (cr, 0, 2*BORDER + TEXT_SIZE); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, 2); + cairo_stroke (cr); + + /* ink boundaries in green */ + cairo_rectangle (cr, + BORDER + extents.x_bearing, BORDER + font_extents.ascent + extents.y_bearing, + extents.width, extents.height); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_set_line_width (cr, 2); + cairo_stroke (cr); + + /* text in black */ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_move_to (cr, BORDER, BORDER + font_extents.ascent); + cairo_show_text (cr, text); + + + /* filled version of text in blue */ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_move_to (cr, BORDER, BORDER + font_extents.height + 2*BORDER + font_extents.ascent); + cairo_text_path (cr, text); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (user_font_mask, + "Tests a user-font using cairo_mask with bitmap images", + "user-font, mask", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/user-font-proxy.c b/local/recipes/libs/cairo/source/test/user-font-proxy.c new file mode 100644 index 0000000000..42f51b6028 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/user-font-proxy.c @@ -0,0 +1,239 @@ +/* + * Copyright © 2006, 2008 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Contributor(s): + * Kristian Høgsberg + * Behdad Esfahbod + */ + +#include "cairo-test.h" + +#include +#include + +/*#define ROTATED 1*/ + +#define BORDER 10 +#define TEXT_SIZE 64 +#define WIDTH (TEXT_SIZE * 12 + 2*BORDER) +#ifndef ROTATED + #define HEIGHT ((TEXT_SIZE + 2*BORDER)*2) +#else + #define HEIGHT WIDTH +#endif + +#define TEXT1 "cairo user-font." +#define TEXT2 " zg" + +static cairo_user_data_key_t fallback_font_key; + +static cairo_status_t +test_scaled_font_init (cairo_scaled_font_t *scaled_font, + cairo_t *cr, + cairo_font_extents_t *extents) +{ + cairo_status_t status; + + cairo_set_font_face (cr, + cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font), + &fallback_font_key)); + + status = cairo_scaled_font_set_user_data (scaled_font, + &fallback_font_key, + cairo_scaled_font_reference (cairo_get_scaled_font (cr)), + (cairo_destroy_func_t) cairo_scaled_font_destroy); + if (unlikely (status)) { + cairo_scaled_font_destroy (cairo_get_scaled_font (cr)); + return status; + } + + cairo_font_extents (cr, extents); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +test_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font, + unsigned long glyph, + cairo_t *cr, + cairo_text_extents_t *extents) +{ + cairo_glyph_t cairo_glyph; + + cairo_glyph.index = glyph; + cairo_glyph.x = 0; + cairo_glyph.y = 0; + + cairo_set_font_face (cr, + cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font), + &fallback_font_key)); + + cairo_show_glyphs (cr, &cairo_glyph, 1); + cairo_glyph_extents (cr, &cairo_glyph, 1, extents); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +test_scaled_font_text_to_glyphs (cairo_scaled_font_t *scaled_font, + const char *utf8, + int utf8_len, + cairo_glyph_t **glyphs, + int *num_glyphs, + cairo_text_cluster_t **clusters, + int *num_clusters, + cairo_text_cluster_flags_t *cluster_flags) +{ + cairo_scaled_font_t *fallback_scaled_font; + + fallback_scaled_font = cairo_scaled_font_get_user_data (scaled_font, + &fallback_font_key); + + return cairo_scaled_font_text_to_glyphs (fallback_scaled_font, 0, 0, + utf8, utf8_len, + glyphs, num_glyphs, + clusters, num_clusters, cluster_flags); +} + +static cairo_status_t +_user_font_face_create (cairo_font_face_t **out) +{ + cairo_font_face_t *user_font_face; + cairo_font_face_t *fallback_font_face; + cairo_status_t status; + + user_font_face = cairo_user_font_face_create (); + cairo_user_font_face_set_init_func (user_font_face, test_scaled_font_init); + cairo_user_font_face_set_render_glyph_func (user_font_face, test_scaled_font_render_glyph); + cairo_user_font_face_set_text_to_glyphs_func (user_font_face, test_scaled_font_text_to_glyphs); + + /* This also happens to be default font face on cairo_t, so does + * not make much sense here. For demonstration only. + */ + fallback_font_face = cairo_toy_font_face_create (CAIRO_TEST_FONT_FAMILY " Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + + status = cairo_font_face_set_user_data (user_font_face, + &fallback_font_key, + fallback_font_face, + (cairo_destroy_func_t) cairo_font_face_destroy); + if (status) { + cairo_font_face_destroy (fallback_font_face); + cairo_font_face_destroy (user_font_face); + return status; + } + + *out = user_font_face; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_font_extents_t font_extents; + cairo_text_extents_t extents; + cairo_font_face_t *font_face; + cairo_status_t status; + char full_text[100]; + + strcpy(full_text, TEXT1); + strcat(full_text, TEXT2); + strcat(full_text, TEXT2); + strcat(full_text, TEXT2); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + +#ifdef ROTATED + cairo_translate (cr, TEXT_SIZE, 0); + cairo_rotate (cr, .6); +#endif + + status = _user_font_face_create (&font_face); + if (status) { + return cairo_test_status_from_status (cairo_test_get_context (cr), + status); + } + + cairo_set_font_face (cr, font_face); + cairo_font_face_destroy (font_face); + + cairo_set_font_size (cr, TEXT_SIZE); + + cairo_font_extents (cr, &font_extents); + cairo_text_extents (cr, full_text, &extents); + + /* logical boundaries in red */ + cairo_move_to (cr, 0, BORDER); + cairo_rel_line_to (cr, WIDTH, 0); + cairo_move_to (cr, 0, BORDER + font_extents.ascent); + cairo_rel_line_to (cr, WIDTH, 0); + cairo_move_to (cr, 0, BORDER + font_extents.ascent + font_extents.descent); + cairo_rel_line_to (cr, WIDTH, 0); + cairo_move_to (cr, BORDER, 0); + cairo_rel_line_to (cr, 0, 2*BORDER + TEXT_SIZE); + cairo_move_to (cr, BORDER + extents.x_advance, 0); + cairo_rel_line_to (cr, 0, 2*BORDER + TEXT_SIZE); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, 2); + cairo_stroke (cr); + + /* ink boundaries in green */ + cairo_rectangle (cr, + BORDER + extents.x_bearing, BORDER + font_extents.ascent + extents.y_bearing, + extents.width, extents.height); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_set_line_width (cr, 2); + cairo_stroke (cr); + + + /* TEXT1 in black */ + cairo_move_to (cr, BORDER, BORDER + font_extents.ascent); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_show_text (cr, TEXT1); + + /* Draw TEXT2 three times with three different foreground colors. + * This checks that cairo uses the foreground color and does not cache + * glyph images when the foreground color changes. + */ + cairo_show_text (cr, TEXT2); + cairo_set_source_rgb (cr, 0, 0.5, 0); + cairo_show_text (cr, TEXT2); + cairo_set_source_rgb (cr, 0.2, 0.5, 0.5); + cairo_show_text (cr, TEXT2); + + /* filled version of text in light blue */ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_move_to (cr, BORDER, BORDER + font_extents.height + BORDER + font_extents.ascent); + cairo_text_path (cr, full_text); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (user_font_proxy, + "Tests a user-font using a native font in its render_glyph", + "font, user-font", /* keywords */ + "cairo >= 1.7.4", /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/user-font-rescale.c b/local/recipes/libs/cairo/source/test/user-font-rescale.c new file mode 100644 index 0000000000..6f03b8e663 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/user-font-rescale.c @@ -0,0 +1,368 @@ +/* + * Copyright © 2008 Jeff Muizelaar + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Jeff Muizelaar not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Jeff Muizelaar makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * JEFF MUIZELAAR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL JEFF MUIZELAAR BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Contributor(s): + * Jeff Muizelaar + * Kristian Høgsberg + * Behdad Esfahbod + */ + +#include "cairo-test.h" + +#include + +#define BORDER 10 +#define TEXT_SIZE 32 +#define WIDTH (TEXT_SIZE * 13.75 + 2*BORDER) +#define HEIGHT ((TEXT_SIZE + 2*BORDER)*3 + BORDER) +#define TEXT "test of rescaled glyphs" + +static const cairo_user_data_key_t rescale_font_closure_key; + +struct rescaled_font { + cairo_font_face_t *substitute_font; + cairo_scaled_font_t *measuring_font; + unsigned long glyph_count; + unsigned long start; + double *desired_width; + double *rescale_factor; +}; + +static cairo_status_t +test_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font, + unsigned long glyph, + cairo_t *cr, + cairo_text_extents_t *metrics) +{ + cairo_font_face_t *user_font; + struct rescaled_font *r; + cairo_glyph_t cairo_glyph; + + cairo_glyph.index = glyph; + cairo_glyph.x = 0; + cairo_glyph.y = 0; + + user_font = cairo_scaled_font_get_font_face (scaled_font); + r = cairo_font_face_get_user_data (user_font, &rescale_font_closure_key); + cairo_set_font_face (cr, r->substitute_font); + + if (glyph - r->start < r->glyph_count) { + cairo_matrix_t matrix; + + if (isnan (r->rescale_factor[glyph - r->start])) { + double desired_width; + double actual_width; + cairo_text_extents_t extents; + + /* measure the glyph and compute the necessary rescaling factor */ + cairo_scaled_font_glyph_extents (r->measuring_font, + &cairo_glyph, 1, + &extents); + + desired_width = r->desired_width[glyph - r->start]; + actual_width = extents.x_advance; + + r->rescale_factor[glyph - r->start] = desired_width / actual_width; + } + + /* scale the font so that the glyph width matches the desired width */ + cairo_get_font_matrix (cr, &matrix); + cairo_matrix_scale (&matrix, r->rescale_factor[glyph - r->start], 1.); + cairo_set_font_matrix (cr, &matrix); + } + + cairo_show_glyphs (cr, &cairo_glyph, 1); + cairo_glyph_extents (cr, &cairo_glyph, 1, metrics); + + return CAIRO_STATUS_SUCCESS; +} + +static void +unichar_to_utf8 (uint32_t ucs4, char utf8[7]) +{ + int i, charlen, first; + + if (ucs4 < 0x80) { + first = 0; + charlen = 1; + } else if (ucs4 < 0x800) { + first = 0xc0; + charlen = 2; + } else if (ucs4 < 0x10000) { + first = 0xe0; + charlen = 3; + } else if (ucs4 < 0x200000) { + first = 0xf0; + charlen = 4; + } else if (ucs4 < 0x4000000) { + first = 0xf8; + charlen = 5; + } else { + first = 0xfc; + charlen = 6; + } + + for (i = charlen - 1; i > 0; --i) { + utf8[i] = (ucs4 & 0x3f) | 0x80; + ucs4 >>= 6; + } + utf8[0] = ucs4 | first; + utf8[charlen] = '\0'; +} + +static cairo_status_t +test_scaled_font_unicode_to_glyph (cairo_scaled_font_t *scaled_font, + unsigned long unicode, + unsigned long *glyph_index) +{ + cairo_font_face_t *user_font; + struct rescaled_font *r; + int num_glyphs; + cairo_glyph_t *glyphs = NULL; + cairo_status_t status; + char utf8[7]; + + user_font = cairo_scaled_font_get_font_face (scaled_font); + + unichar_to_utf8 (unicode, utf8); + r = cairo_font_face_get_user_data (user_font, &rescale_font_closure_key); + status = cairo_scaled_font_text_to_glyphs (r->measuring_font, 0, 0, + utf8, -1, + &glyphs, &num_glyphs, + NULL, NULL, NULL); + if (status) + return status; + + *glyph_index = glyphs[0].index; + + cairo_glyph_free (glyphs); + return CAIRO_STATUS_SUCCESS; +} + +static void rescale_font_closure_destroy (void *data) +{ + struct rescaled_font *r = data; + + cairo_font_face_destroy (r->substitute_font); + cairo_scaled_font_destroy (r->measuring_font); + free (r->desired_width); + free (r->rescale_factor); + free (r); +} + +static cairo_status_t +create_rescaled_font (cairo_font_face_t *substitute_font, + int glyph_start, + int glyph_count, + double *desired_width, + cairo_font_face_t **out) +{ + cairo_font_face_t *user_font_face; + struct rescaled_font *r; + cairo_font_options_t *options; + cairo_status_t status; + cairo_matrix_t m; + unsigned long i; + + user_font_face = cairo_user_font_face_create (); + cairo_user_font_face_set_render_glyph_func (user_font_face, test_scaled_font_render_glyph); + cairo_user_font_face_set_unicode_to_glyph_func (user_font_face, test_scaled_font_unicode_to_glyph); + + r = xmalloc (sizeof (struct rescaled_font)); + r->substitute_font = cairo_font_face_reference (substitute_font); + + /* we don't want any hinting when doing the measuring */ + options = cairo_font_options_create (); + cairo_font_options_set_hint_style (options, CAIRO_HINT_STYLE_NONE); + cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_OFF); + + cairo_matrix_init_identity (&m); + + r->measuring_font = cairo_scaled_font_create (r->substitute_font, + &m, &m, + options); + cairo_font_options_destroy (options); + + + r->start = glyph_start; + r->glyph_count = glyph_count; + r->desired_width = xcalloc (sizeof (double), r->glyph_count); + r->rescale_factor = xcalloc (sizeof (double), r->glyph_count); + + for (i = 0; i < r->glyph_count; i++) { + r->desired_width[i] = desired_width[i]; + /* use NaN to specify unset */ + r->rescale_factor[i] = cairo_test_NaN (); + } + + status = cairo_font_face_set_user_data (user_font_face, + &rescale_font_closure_key, + r, rescale_font_closure_destroy); + if (status) { + rescale_font_closure_destroy (r); + cairo_font_face_destroy (user_font_face); + return status; + } + + *out = user_font_face; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +get_user_font_face (cairo_font_face_t *substitute_font, + const char *text, + cairo_font_face_t *old, + cairo_font_face_t **out) +{ + cairo_font_options_t *options; + cairo_matrix_t m; + cairo_scaled_font_t *measure; + int i; + double *widths; + int count; + int num_glyphs; + unsigned long min_index, max_index; + cairo_status_t status; + + cairo_glyph_t *glyphs = NULL; + + /* we don't want any hinting when doing the measuring */ + options = cairo_font_options_create (); + cairo_font_options_set_hint_style (options, CAIRO_HINT_STYLE_NONE); + cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_OFF); + + cairo_matrix_init_identity (&m); + measure = cairo_scaled_font_create (old, &m, &m, options); + + status = cairo_scaled_font_text_to_glyphs (measure, 0, 0, + text, -1, + &glyphs, &num_glyphs, + NULL, NULL, NULL); + cairo_font_options_destroy (options); + + if (status) { + cairo_scaled_font_destroy (measure); + return status; + } + + /* find the glyph range the text covers */ + max_index = glyphs[0].index; + min_index = glyphs[0].index; + for (i=0; i max_index) + max_index = glyphs[i].index; + } + + count = max_index - min_index + 1; + widths = xcalloc (sizeof (double), count); + /* measure all of the necessary glyphs individually */ + for (i=0; i + */ + +/* Test that user-fonts can subpixel positioning. + */ + +#include "cairo-test.h" + + +#define BORDER 10 +#define REPEAT 16 +#define TEXT_SIZE 24 +#define WIDTH (TEXT_SIZE * REPEAT + 2*BORDER) +#define HEIGHT (TEXT_SIZE + 2*BORDER) + + +static cairo_status_t +test_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font, + unsigned long glyph, + cairo_t *cr, + cairo_text_extents_t *metrics) +{ + cairo_rectangle (cr, 0, .45, 1., .1); + cairo_fill (cr); + return CAIRO_STATUS_SUCCESS; +} + +static cairo_font_face_t * +_user_font_face_create (void) +{ + cairo_font_face_t *user_font_face; + + user_font_face = cairo_user_font_face_create (); + cairo_user_font_face_set_render_glyph_func (user_font_face, test_scaled_font_render_glyph); + + return user_font_face; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_font_face_t *font_face; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + font_face = _user_font_face_create (); + + cairo_set_font_face (cr, font_face); + cairo_font_face_destroy (font_face); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_font_size (cr, TEXT_SIZE); + + for (unsigned i = 0; i < REPEAT; i++) + { + cairo_move_to (cr, BORDER + TEXT_SIZE * i, BORDER + i * .1); + cairo_show_text (cr, "-"); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (user_font_subpixel, + "Tests user font subpixel rendering", + "font, user-font", /* keywords */ + "cairo >= 1.17.4", /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/user-font.c b/local/recipes/libs/cairo/source/test/user-font.c new file mode 100644 index 0000000000..a8aed23b32 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/user-font.c @@ -0,0 +1,319 @@ +/* + * Copyright © 2006, 2008 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Contributor(s): + * Kristian Høgsberg + * Behdad Esfahbod + */ + +#include "cairo-test.h" + +#include +#include + +/*#define ROTATED 1*/ + +#define BORDER 10 +#define TEXT_SIZE 64 +#define WIDTH (TEXT_SIZE * 16 + 2*BORDER) +#ifndef ROTATED + #define HEIGHT ((TEXT_SIZE + 2*BORDER)*3) +#else + #define HEIGHT WIDTH +#endif + +#define TEXT1 "cairo user-font." +#define TEXT2 " zg" + +#define END_GLYPH 0 +#define STROKE 126 +#define CLOSE 127 + +/* Simple glyph definition: 1 - 15 means lineto (or moveto for first + * point) for one of the points on this grid: + * + * 1 2 3 + * 4 5 6 + * 7 8 9 + * ----10 11 12----(baseline) + * 13 14 15 + */ +typedef struct { + unsigned long ucs4; + int width; + char data[16]; +} test_scaled_font_glyph_t; + +static cairo_user_data_key_t test_font_face_glyphs_key; + +static cairo_status_t +test_scaled_font_init (cairo_scaled_font_t *scaled_font, + cairo_t *cr, + cairo_font_extents_t *metrics) +{ + metrics->ascent = .75; + metrics->descent = .25; + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +test_scaled_font_unicode_to_glyph (cairo_scaled_font_t *scaled_font, + unsigned long unicode, + unsigned long *glyph) +{ + test_scaled_font_glyph_t *glyphs = cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font), + &test_font_face_glyphs_key); + int i; + + for (i = 0; glyphs[i].ucs4 != (unsigned long) -1; i++) + if (glyphs[i].ucs4 == unicode) { + *glyph = i; + return CAIRO_STATUS_SUCCESS; + } + + /* Not found. Default to glyph 0 */ + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +test_scaled_font_render_glyph (cairo_scaled_font_t *scaled_font, + unsigned long glyph, + cairo_t *cr, + cairo_text_extents_t *metrics) +{ + test_scaled_font_glyph_t *glyphs = cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font), + &test_font_face_glyphs_key); + int i; + const char *data; + div_t d; + double x, y; + + /* FIXME: We simply crash on out-of-bound glyph indices */ + + metrics->x_advance = glyphs[glyph].width / 4.0; + + cairo_set_line_width (cr, 0.1); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + + data = glyphs[glyph].data; + for (i = 0; data[i] != END_GLYPH; i++) { + switch (data[i]) { + case STROKE: + cairo_new_sub_path (cr); + break; + + case CLOSE: + cairo_close_path (cr); + break; + + default: + d = div (data[i] - 1, 3); + x = d.rem / 4.0 + 0.125; + y = d.quot / 5.0 + 0.4 - 1.0; + cairo_line_to (cr, x, y); + } + } + cairo_stroke (cr); + + return CAIRO_STATUS_SUCCESS; +} + + +/* If color_render is TRUE, use the render_color_glyph callback + * instead of the render_glyph callbac. The output should be identical + * in this test since the render function does not alter the cairo_t + * source. + */ +static cairo_status_t +_user_font_face_create (cairo_font_face_t **out, cairo_bool_t color_render) +{ + /* Simple glyph definition: 1 - 15 means lineto (or moveto for first + * point) for one of the points on this grid: + * + * 1 2 3 + * 4 5 6 + * 7 8 9 + * ----10 11 12----(baseline) + * 13 14 15 + */ + static const test_scaled_font_glyph_t glyphs [] = { + { 'a', 3, { 4, 6, 12, 10, 7, 9, STROKE, END_GLYPH } }, + { 'c', 3, { 6, 4, 10, 12, STROKE, END_GLYPH } }, + { 'e', 3, { 12, 10, 4, 6, 9, 7, STROKE, END_GLYPH } }, + { 'f', 3, { 3, 2, 11, STROKE, 4, 6, STROKE, END_GLYPH } }, + { 'g', 3, { 12, 10, 4, 6, 15, 13, STROKE, END_GLYPH } }, + { 'h', 3, { 1, 10, STROKE, 7, 5, 6, 12, STROKE, END_GLYPH } }, + { 'i', 1, { 1, 1, STROKE, 4, 10, STROKE, END_GLYPH } }, + { 'l', 1, { 1, 10, STROKE, END_GLYPH } }, + { 'n', 3, { 10, 4, STROKE, 7, 5, 6, 12, STROKE, END_GLYPH } }, + { 'o', 3, { 4, 10, 12, 6, CLOSE, END_GLYPH } }, + { 'r', 3, { 4, 10, STROKE, 7, 5, 6, STROKE, END_GLYPH } }, + { 's', 3, { 6, 4, 7, 9, 12, 10, STROKE, END_GLYPH } }, + { 't', 3, { 2, 11, 12, STROKE, 4, 6, STROKE, END_GLYPH } }, + { 'u', 3, { 4, 10, 12, 6, STROKE, END_GLYPH } }, + { 'z', 3, { 4, 6, 10, 12, STROKE, END_GLYPH } }, + { ' ', 1, { END_GLYPH } }, + { '-', 2, { 7, 8, STROKE, END_GLYPH } }, + { '.', 1, { 10, 10, STROKE, END_GLYPH } }, + { -1, 0, { END_GLYPH } }, + }; + + cairo_font_face_t *user_font_face; + cairo_status_t status; + + user_font_face = cairo_user_font_face_create (); + cairo_user_font_face_set_init_func (user_font_face, test_scaled_font_init); + if (color_render) + cairo_user_font_face_set_render_color_glyph_func (user_font_face, test_scaled_font_render_glyph); + else + cairo_user_font_face_set_render_glyph_func (user_font_face, test_scaled_font_render_glyph); + + cairo_user_font_face_set_unicode_to_glyph_func (user_font_face, test_scaled_font_unicode_to_glyph); + + status = cairo_font_face_set_user_data (user_font_face, + &test_font_face_glyphs_key, + (void*) glyphs, NULL); + if (status) { + cairo_font_face_destroy (user_font_face); + return status; + } + + *out = user_font_face; + return CAIRO_STATUS_SUCCESS; +} + +static void +draw_line (cairo_t *cr) +{ + /* TEXT1 in black */ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_show_text (cr, TEXT1); + + /* Draw TEXT2 three times with three different foreground colors. + * This checks that cairo uses the foreground color and does not cache + * glyph images when the foreground color changes. + */ + cairo_show_text (cr, TEXT2); + cairo_set_source_rgb (cr, 0, 0.5, 0); + cairo_show_text (cr, TEXT2); + cairo_set_source_rgb (cr, 0.2, 0.5, 0.5); + cairo_show_text (cr, TEXT2); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_font_face_t *font_face; + char full_text[100]; + cairo_font_extents_t font_extents; + cairo_text_extents_t extents; + cairo_status_t status; + + strcpy(full_text, TEXT1); + strcat(full_text, TEXT2); + strcat(full_text, TEXT2); + strcat(full_text, TEXT2); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + +#ifdef ROTATED + cairo_translate (cr, TEXT_SIZE, 0); + cairo_rotate (cr, .6); +#endif + + status = _user_font_face_create (&font_face, FALSE); + if (status) { + return cairo_test_status_from_status (cairo_test_get_context (cr), + status); + } + + cairo_set_font_face (cr, font_face); + cairo_font_face_destroy (font_face); + + cairo_set_font_size (cr, TEXT_SIZE); + + cairo_font_extents (cr, &font_extents); + cairo_text_extents (cr, full_text, &extents); + + /* logical boundaries in red */ + cairo_move_to (cr, 0, BORDER); + cairo_rel_line_to (cr, WIDTH, 0); + cairo_move_to (cr, 0, BORDER + font_extents.ascent); + cairo_rel_line_to (cr, WIDTH, 0); + cairo_move_to (cr, 0, BORDER + font_extents.ascent + font_extents.descent); + cairo_rel_line_to (cr, WIDTH, 0); + cairo_move_to (cr, BORDER, 0); + cairo_rel_line_to (cr, 0, 2*BORDER + TEXT_SIZE); + cairo_move_to (cr, BORDER + extents.x_advance, 0); + cairo_rel_line_to (cr, 0, 2*BORDER + TEXT_SIZE); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, 2); + cairo_stroke (cr); + + /* ink boundaries in green */ + cairo_rectangle (cr, + BORDER + extents.x_bearing, BORDER + font_extents.ascent + extents.y_bearing, + extents.width, extents.height); + cairo_set_source_rgb (cr, 0, 1, 0); + cairo_set_line_width (cr, 2); + cairo_stroke (cr); + + /* First line. TEXT1 in black. TEXT2 in different colors. */ + cairo_move_to (cr, BORDER, BORDER + font_extents.ascent); + draw_line (cr); + + /* Now draw the second line using the render_color_glyph + * callback. The text should be all black because the default + * color of render function is used instead of the foreground + * color. + */ + status = _user_font_face_create (&font_face, TRUE); + if (status) { + return cairo_test_status_from_status (cairo_test_get_context (cr), + status); + } + + cairo_set_font_face (cr, font_face); + cairo_font_face_destroy (font_face); + + cairo_set_font_size (cr, TEXT_SIZE); + + cairo_move_to (cr, BORDER, BORDER + font_extents.height + 2*BORDER + font_extents.ascent); + draw_line (cr); + + /* Third line. Filled version of text in blue */ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_move_to (cr, BORDER, BORDER + font_extents.height + 4*BORDER + 2*font_extents.ascent); + cairo_text_path (cr, full_text); + cairo_fill (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (user_font, + "Tests user font feature", + "font, user-font", /* keywords */ + "cairo >= 1.7.4", /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/view-test-results.py b/local/recipes/libs/cairo/source/test/view-test-results.py new file mode 100755 index 0000000000..fbc0d7f887 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/view-test-results.py @@ -0,0 +1,22 @@ +#!/usr/bin/env python3 + +import http.server +import os +import threading +import webbrowser + +port = 8000 + +for i in range(10): + try: + server = http.server.ThreadingHTTPServer(("localhost", port), http.server.SimpleHTTPRequestHandler) + break + except OSError: + port += 1 + +thread = threading.Thread(target = server.serve_forever) +thread.daemon = True +thread.start() + +webbrowser.open_new("http://localhost:" + str(port) + "/index.html") +input("\nPress Enter to exit\n\n") diff --git a/local/recipes/libs/cairo/source/test/white-in-noop.c b/local/recipes/libs/cairo/source/test/white-in-noop.c new file mode 100644 index 0000000000..e6a93e801a --- /dev/null +++ b/local/recipes/libs/cairo/source/test/white-in-noop.c @@ -0,0 +1,52 @@ +/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ +/* + * Copyright 2011 Andrea Canciani + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Andrea Canciani + */ + +#include "cairo-test.h" + +#define HEIGHT 4 +#define WIDTH 4 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_paint (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_IN); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (white_in_noop, + "Test an invalid optimization of the IN operator with white sources", + "operator", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/world-map.c b/local/recipes/libs/cairo/source/test/world-map.c new file mode 100644 index 0000000000..f775bb0d52 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/world-map.c @@ -0,0 +1,151 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#ifdef HAVE_UNISTD_H +#include +#endif + +#define WIDTH 800 +#define HEIGHT 400 + +typedef enum { + WM_NEW_PATH, + WM_MOVE_TO, + WM_LINE_TO, + WM_HLINE_TO, + WM_VLINE_TO, + WM_REL_LINE_TO, + WM_END +} wm_type_t; + +typedef struct _wm_element { + wm_type_t type; + double x; + double y; +} wm_element_t; + +#include "world-map.h" + +enum { + STROKE = 1, + FILL = 2, +}; + +static cairo_test_status_t +draw_world_map (cairo_t *cr, int width, int height, int mode) +{ + const wm_element_t *e; + double cx, cy; + + cairo_set_line_width (cr, 0.2); + + cairo_set_source_rgb (cr, .68, .85, .90); /* lightblue */ + cairo_rectangle (cr, 0, 0, 800, 400); + cairo_fill (cr); + + e = &countries[0]; + while (1) { + switch (e->type) { + case WM_NEW_PATH: + case WM_END: + if (mode & FILL) { + cairo_set_source_rgb (cr, .75, .75, .75); /* silver */ + cairo_fill_preserve (cr); + } + if (mode & STROKE) { + cairo_set_source_rgb (cr, .50, .50, .50); /* gray */ + cairo_stroke (cr); + } + cairo_new_path (cr); + cairo_move_to (cr, e->x, e->y); + break; + case WM_MOVE_TO: + cairo_close_path (cr); + cairo_move_to (cr, e->x, e->y); + break; + case WM_LINE_TO: + cairo_line_to (cr, e->x, e->y); + break; + case WM_HLINE_TO: + cairo_get_current_point (cr, &cx, &cy); + cairo_line_to (cr, e->x, cy); + break; + case WM_VLINE_TO: + cairo_get_current_point (cr, &cx, &cy); + cairo_line_to (cr, cx, e->y); + break; + case WM_REL_LINE_TO: + cairo_rel_line_to (cr, e->x, e->y); + break; + } + if (e->type == WM_END) + break; + e++; + } + + cairo_new_path (cr); + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw_world_map_stroke (cairo_t *cr, int width, int height) +{ + return draw_world_map (cr, width, height, STROKE); +} + +static cairo_test_status_t +draw_world_map_fill (cairo_t *cr, int width, int height) +{ + return draw_world_map (cr, width, height, FILL); +} + +static cairo_test_status_t +draw_world_map_both (cairo_t *cr, int width, int height) +{ + return draw_world_map (cr, width, height, FILL | STROKE); +} + +CAIRO_TEST (world_map, + "Tests a complex drawing (part of the performance suite)", + "fill, stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_world_map_both) +CAIRO_TEST (world_map_stroke, + "Tests a complex drawing (part of the performance suite)", + "stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_world_map_stroke) +CAIRO_TEST (world_map_fill, + "Tests a complex drawing (part of the performance suite)", + "fill", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw_world_map_fill) diff --git a/local/recipes/libs/cairo/source/test/world-map.h b/local/recipes/libs/cairo/source/test/world-map.h new file mode 100644 index 0000000000..af58b80f1c --- /dev/null +++ b/local/recipes/libs/cairo/source/test/world-map.h @@ -0,0 +1,196 @@ +/* The data for this test case was provided by Gary Nicholson + * who originally created an interactive SVG map + * of the world as can be seen here: + * + * http://www.wherearewe.co.nz/svg.html + * + * The data is used here by permission from Gary given on 2006-11-08: + * + * Thanks for asking, I don't need any attribution if you are + * only using the vectors and not the entire map with + * interactivity etc. So feel free to do what you wish with + * the data. + */ + +#define N(x,y) { WM_NEW_PATH, x, y } +#define M(x,y) { WM_MOVE_TO, x, y } +#define L(x,y) { WM_LINE_TO, x, y } +#define H(x,y) { WM_HLINE_TO, x, y } +#define V(x,y) { WM_VLINE_TO, x, y } +#define l(x,y) { WM_REL_LINE_TO, x, y } +#define E(x,y) { WM_END, x, y } + +static const wm_element_t countries[] = { +N(413.519,90.071),l(.136,-.348),l(-.31,-.204),l(-.017,-.327),l(.213,-.322),l(.245,-.147),l(.142,-.08),l(.225,.072),l(.062,.301),l(.41,.312),l(.466,.096),l(-.044,.288),l(-.248,.144),l(.074,.353),l(-.145,-.063),l(-.568,-.011),l(-.642,-.063), +N(421.683,94.397),l(.193,.336),l(-.266,.274),l(.214,.288),l(-.09,.192),l(.622,.062),l(.008,.144),l(.55,.242),l(.579,-.332),l(.215,.117),l(-.029,.171),l(-.126,.309),l(.112,.212),l(-.038,.192),l(-.315,-.051),l(-.176,-.162),l(-.283,.091),l(-.081,.273),l(.244,.131),l(-.228,.415),l(-.244,-.333),l(-.469,.05),l(-.071,.122),l(-.216,.03),l(-.23,-.142),l(-.143,-.354),l(-.371,.081),l(.019,.333),l(-.425,.384),l(-.018,.535),l(-.285,.151),l(-.385,-.312),l(.098,-.182),l(-.311,-.071),l(-.534,-.363),l(-.016,-.415),l(-.777,.404),l(.103,.212),l(-.349,.432),l(-.275,.16),l(-.629,-.168),l(-.627,.204),l(-.599,-.062),l(-.102,-.424),l(-.312,-.806),l(-.616,.147),l(-.854,.668),l(-.369,-.111),l(.238,-.226),l(.013,-.322),l(-.08,-.137),l(.089,-.294),l(.718,-.418),l(-.038,-.315),l(.575,-.24),l(.012,-.076),l(.528,-.494),l(.173,-.035),l(-.116,-.089),l(-.153,-.028),l(.221,-.302),l(.446,.007),l(-.005,.096),l(.473,.007),l(.385,-.309),l(.271,.089),l(.272,-.117),l(.271,.096),l(.567,-.158),l(.278,.11),l(.354,-.021),l(-.179,-.199),l(.709,-.199),l(.017,.151),l(.199,-.014),l(.149,.089),l(.852,.007),l(.664,.261), 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+E(0,0) +}; + +#undef N +#undef M +#undef L +#undef l +#undef E diff --git a/local/recipes/libs/cairo/source/test/xcb-huge-image-shm.c b/local/recipes/libs/cairo/source/test/xcb-huge-image-shm.c new file mode 100644 index 0000000000..269d7f0d47 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/xcb-huge-image-shm.c @@ -0,0 +1,67 @@ +/* + * Copyright © 2011 Uli Schlachter + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Uli Schlachter + */ + +#include "cairo-test.h" + +#define WIDTH 3000 +#define HEIGHT 3000 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_surface_t *image; + cairo_t *cr2; + + /* We use a similar surface to have way smaller ref images */ + surface = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + WIDTH, HEIGHT); + + /* First we have to defeat xcb's deferred clear */ + cr2 = cairo_create (surface); + cairo_test_paint_checkered (cr2); + cairo_destroy (cr2); + + /* Now we try to map this to an image. This will try to use shared memory + * but fail the allocation, because of the huge surface. */ + image = cairo_surface_map_to_image (surface, NULL); + cairo_surface_unmap_image (surface, image); + + /* Finally we make sure that errors aren't lost. */ + cairo_set_source_surface (cr, surface, 0, 0); + cairo_paint (cr); + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (xcb_huge_image_shm, + "Force a failed shm allocation when receiving an image", + "xcb", /* keywords */ + NULL, /* requirements */ + 2, 2, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/xcb-huge-subimage.c b/local/recipes/libs/cairo/source/test/xcb-huge-subimage.c new file mode 100644 index 0000000000..fc8e278c6b --- /dev/null +++ b/local/recipes/libs/cairo/source/test/xcb-huge-subimage.c @@ -0,0 +1,81 @@ +/* + * Copyright © 2012 Uli Schlachter + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Uli Schlachter + */ + +#include "cairo-test.h" + +#define WIDTH 6000 +#define HEIGHT 6000 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_surface_t *image; + cairo_surface_t *subimage; + cairo_rectangle_int_t extents; + cairo_t *cr2; + + extents.x = extents.y = 10; + extents.width = WIDTH - 20; + extents.height = HEIGHT - 20; + + /* We use a similar surface to have way smaller ref images */ + surface = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + WIDTH, HEIGHT); + + /* First we have to defeat xcb's deferred clear */ + cr2 = cairo_create (surface); + cairo_test_paint_checkered (cr2); + cairo_destroy (cr2); + + /* Get us an image surface with a non-natural stride */ + image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, + WIDTH, HEIGHT); + subimage = cairo_surface_map_to_image (image, &extents); + + /* Paint the subimage to the similar surface and trigger the big upload */ + cr2 = cairo_create (surface); + cairo_set_source_surface (cr2, subimage, 0, 0); + cairo_paint (cr2); + cairo_destroy (cr2); + + /* Finally we make sure that errors aren't lost. */ + cairo_surface_unmap_image (image, subimage); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_paint (cr); + cairo_surface_destroy (image); + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (xcb_huge_subimage, + "Test if the maximum request size is honored", + "xcb", /* keywords */ + NULL, /* requirements */ + 2, 2, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/xcb-snapshot-assert.c b/local/recipes/libs/cairo/source/test/xcb-snapshot-assert.c new file mode 100644 index 0000000000..b578f8c7ed --- /dev/null +++ b/local/recipes/libs/cairo/source/test/xcb-snapshot-assert.c @@ -0,0 +1,75 @@ +/* + * Copyright © 2011 Uli Schlachter + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Uli Schlachter + */ + +#include "cairo-test.h" +#include "cairo.h" + +static cairo_surface_t * +create_image (int width, int height) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height); + /* Paint something random to the image */ + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr, 0, 1, 1); + cairo_paint (cr); + + surface = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return surface; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *image; + + /* Image has to have same geometry as xcb surface to be added as a snapshot */ + image = create_image (width, height); + cairo_set_source_surface (cr, image, 0, 0); + cairo_surface_destroy (image); + + /* This attaches the tested xcb surface as a snapshot */ + cairo_paint (cr); + + /* Now cairo is modifying a snapshot which fails an + * assert in _cairo_surface_begin_modification */ + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (xcb_snapshot_assert, + "Test a wrong _cairo_surface_attach_snapshot call", + "xcb", /* keywords */ + NULL, /* requirements */ + 2, 2, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/xcb-stress-cache.c b/local/recipes/libs/cairo/source/test/xcb-stress-cache.c new file mode 100644 index 0000000000..3e3d0a289e --- /dev/null +++ b/local/recipes/libs/cairo/source/test/xcb-stress-cache.c @@ -0,0 +1,118 @@ +/* + * Copyright © 2011 Uli Schlachter + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Uli Schlachter + */ + +#include "cairo-test.h" + +#define WIDTH 512 +#define HEIGHT 512 + +/* This is a random pick. This results in 512 (width) * 512 (height) * + * 2 (surfaces per run) * 4 (ARGB32) * ITERATIONS = 200 MiB of image data. */ +#define ITERATIONS 100 + +/* This tries to trigger a bug in the xcb backend where a Picture is freed to + * early. It goes something like this: + * + * - _composite_mask calls _cairo_xcb_picture_for_pattern to get a xcb_picture_t + * for the source. + * - _cairo_xcb_picture_for_pattern calls _cairo_xcb_surface_picture which calls + * _cairo_xcb_screen_store_surface_picture which adds the picture to a cache. + * - _cairo_xcb_surface_picture also attached the picture as a snapshot to + * the source surface using cairo_surface_finish as detach_func. + * - _composite_mask calls _cairo_xcb_picture_for_pattern to get a xcb_picture_t + * for the mask. + * - The resulting picture surface is added to the cache again, but the cache is + * already full, so a random cache entry is picked and removed. + * - The surface that was added before is picked and gets fed to + * _surface_cache_entry_destroy. + * - This calls _cairo_surface_detach_snapshot which causes the + * detach_func from above to be called, so the surface is finished and the + * associated picture is FreePicture'd. + * - _composite_mask now uses a Picture that was already freed. + * + * So this depends on the screen's surface cache to be full which is why we do + * all this looping. + */ + +static cairo_surface_t * +create_image (void) +{ + cairo_surface_t *surface; + cairo_t *cr; + + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, WIDTH, HEIGHT); + /* Paint something random to the image */ + cr = cairo_create (surface); + cairo_paint (cr); + cairo_set_source_rgb (cr, 0, 1, 1); + cairo_rectangle (cr, 0, 0, WIDTH/2.0, HEIGHT/2.0); + cairo_fill (cr); + cairo_set_source_rgb (cr, 1, 0, 1); + cairo_rectangle (cr, WIDTH/2.0, HEIGHT/2.0, WIDTH/2.0, HEIGHT/2.0); + cairo_fill (cr); + cairo_destroy (cr); + + return surface; +} + +static cairo_surface_t * +dirty_cache (cairo_t *cr) +{ + cairo_surface_t *surface; + + /* Set a source surface... */ + surface = create_image (); + cairo_set_source_surface (cr, surface, 0, 0); + cairo_surface_destroy (surface); + /* ...and create a mask surface, so that we can hit the early FreePicture */ + surface = create_image (); + cairo_mask_surface (cr, surface, 0, 0); + + return surface; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + cairo_surface_t *array[ITERATIONS]; + + /* We have to keep the associated cairo_surface_t alive so that they aren't + * removed from the cache */ + for (i = 0; i < ITERATIONS; i++) + array[i] = dirty_cache (cr); + for (i = 0; i < ITERATIONS; i++) + cairo_surface_destroy (array[i]); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (xcb_stress_cache, + "Stress test for a image surface cache in cairo-xcb", + "xcb, stress", /* keywords */ + NULL, /* requirements */ + 2, 2, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/xcb-surface-source.c b/local/recipes/libs/cairo/source/test/xcb-surface-source.c new file mode 100644 index 0000000000..d2c7a13620 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/xcb-surface-source.c @@ -0,0 +1,149 @@ +/* + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" +#if CAIRO_HAS_XCB_SURFACE +#include +#endif + +#include "surface-source.c" + +#if CAIRO_HAS_XCB_SURFACE +static cairo_user_data_key_t closure_key; + +struct closure { + cairo_device_t *device; + xcb_connection_t *connection; + xcb_pixmap_t pixmap; +}; + +static void +cleanup (void *data) +{ + struct closure *arg = data; + + cairo_device_finish (arg->device); + cairo_device_destroy (arg->device); + + xcb_free_pixmap (arg->connection, arg->pixmap); + xcb_disconnect (arg->connection); + + free (arg); +} + +static xcb_render_pictforminfo_t * +find_depth (xcb_connection_t *connection, int depth, void **formats_out) +{ + xcb_render_query_pict_formats_reply_t *formats; + xcb_render_query_pict_formats_cookie_t cookie; + xcb_render_pictforminfo_iterator_t i; + + cookie = xcb_render_query_pict_formats (connection); + xcb_flush (connection); + + formats = xcb_render_query_pict_formats_reply (connection, cookie, 0); + if (formats == NULL) + return NULL; + + for (i = xcb_render_query_pict_formats_formats_iterator (formats); + i.rem; + xcb_render_pictforminfo_next (&i)) + { + if (XCB_RENDER_PICT_TYPE_DIRECT != i.data->type) + continue; + + if (depth != i.data->depth) + continue; + + *formats_out = formats; + return i.data; + } + + free (formats); + return NULL; +} +#endif + +static cairo_surface_t * +create_source_surface (int size) +{ +#if CAIRO_HAS_XCB_SURFACE + xcb_connection_t *connection; + xcb_render_pictforminfo_t *render_format; + struct closure *data; + cairo_surface_t *surface; + xcb_screen_t *root; + xcb_void_cookie_t cookie; + void *formats; + + connection = xcb_connect (NULL, NULL); + if (connection == NULL) + return NULL; + + data = xmalloc (sizeof (struct closure)); + data->connection = connection; + + render_format = find_depth (connection, 32, &formats); + if (render_format == NULL) { + xcb_disconnect (connection); + free (data); + return NULL; + } + + root = xcb_setup_roots_iterator (xcb_get_setup (connection)).data; + + data->pixmap = xcb_generate_id (connection); + cookie = xcb_create_pixmap_checked (connection, 32, + data->pixmap, root->root, size, size); + /* slow, but sure */ + if (xcb_request_check (connection, cookie) != NULL) { + free (formats); + xcb_disconnect (connection); + free (data); + return NULL; + } + + surface = cairo_xcb_surface_create_with_xrender_format (connection, + root, + data->pixmap, + render_format, + size, size); + free (formats); + + data->device = cairo_device_reference (cairo_surface_get_device (surface)); + cairo_surface_set_user_data (surface, &closure_key, data, cleanup); + + return surface; +#else + return NULL; +#endif +} + +CAIRO_TEST (xcb_surface_source, + "Test using a XCB surface as the source", + "source", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + preamble, draw) diff --git a/local/recipes/libs/cairo/source/test/xcomposite-projection.c b/local/recipes/libs/cairo/source/test/xcomposite-projection.c new file mode 100644 index 0000000000..39686cf996 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/xcomposite-projection.c @@ -0,0 +1,109 @@ +/* + * Copyright 2009 Benjamin Otte + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + */ + +#include "cairo-test.h" + +/* + * Exercise a bug in the projection of a rotated trapezoid mask. + * I used CAIRO_ANTIALIAS_NONE and a single-color source in the test to get + * rid of aliasing issues in the output images. This makes some issues + * slightly less visible, but still fails for all of them. If you want to + * get a clearer view: + * #define ANTIALIAS CAIRO_ANTIALIAS_DEFAULT + */ + +#define ANTIALIAS CAIRO_ANTIALIAS_NONE + +static const char png_filename[] = "romedalen.png"; + +static cairo_pattern_t * +get_source (const cairo_test_context_t *ctx, + int *width, int *height) +{ + cairo_surface_t *surface; + cairo_pattern_t *pattern; + + if (ANTIALIAS == CAIRO_ANTIALIAS_NONE) { + cairo_t *cr; + + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 256, 192); + cr = cairo_create (surface); + + cairo_set_source_rgb (cr, 0.75, 0.25, 0.25); + cairo_paint (cr); + + pattern = cairo_pattern_create_for_surface (cairo_get_target (cr)); + cairo_destroy (cr); + } else { + surface = cairo_test_create_surface_from_png (ctx, png_filename); + pattern = cairo_pattern_create_for_surface (surface); + } + + *width = cairo_image_surface_get_width (surface); + *height = cairo_image_surface_get_height (surface); + cairo_surface_destroy (surface); + + return pattern; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_pattern_t *image; + int img_width, img_height; + + image = get_source (cairo_test_get_context (cr), + &img_width, &img_height); + + /* we don't want to debug antialiasing artifacts */ + cairo_set_antialias (cr, ANTIALIAS); + + /* dark grey background */ + cairo_set_source_rgb (cr, 0.25, 0.25, 0.25); + cairo_paint (cr); + + /* magic transform */ + cairo_translate (cr, 10, -40); + cairo_rotate (cr, -0.05); + + /* place the image on our surface */ + cairo_set_source (cr, image); + + /* paint the image */ + cairo_rectangle (cr, 0, 0, img_width, img_height); + cairo_fill (cr); + + cairo_pattern_destroy (image); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (xcomposite_projection, + "Test a bug with XRenderComposite reference computation when projecting the first trapezoid onto 16.16 space", + "xlib", /* keywords */ + "target=raster", /* requirements */ + 300, 150, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/xlib-expose-event.c b/local/recipes/libs/cairo/source/test/xlib-expose-event.c new file mode 100644 index 0000000000..1de23e01e4 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/xlib-expose-event.c @@ -0,0 +1,196 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +/* This test tries to emulate the behaviour of most toolkits; it tries + * to simulate typical usage of a single surface with multiple exposures. + * + * The first goal of the test is to reproduce the XSetClipMask(NULL) bug + * reintroduced in 1.6.2 (but was originally fixed in 40558cb15). As I've + * made the same mistake again, it is worth adding a regression test... + */ + +#include "cairo-test.h" + +#include +#include + +#include "cairo.h" + +#include "buffer-diff.h" + +#define SIZE 160 +#define NLOOPS 10 + +static const char *png_filename = "romedalen.png"; + +static void +draw_mask (cairo_t *cr) +{ + cairo_surface_t *surface; + cairo_t *cr2; + + surface = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_ALPHA, + 50, 50); + cr2 = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_rectangle (cr2, + 0, 0, + 40, 40); + cairo_rectangle (cr2, + 10, 10, + 40, 40); + cairo_clip (cr2); + + cairo_move_to (cr2, 0, 25); + cairo_line_to (cr2, 50, 25); + cairo_move_to (cr2, 25, 0); + cairo_line_to (cr2, 25, 50); + cairo_set_source_rgb (cr2, 1, 1, 1); + cairo_stroke (cr2); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_mask_surface (cr, cairo_get_target (cr2), 50, 50); + cairo_destroy (cr2); +} + +static cairo_surface_t * +clone_similar_surface (cairo_surface_t * target, cairo_surface_t *surface) +{ + cairo_t *cr; + cairo_surface_t *similar; + + similar = cairo_surface_create_similar (target, + cairo_surface_get_content (surface), + cairo_image_surface_get_width (surface), + cairo_image_surface_get_height (surface)); + + cr = cairo_create (similar); + cairo_surface_destroy (similar); + + cairo_set_source_surface (cr, surface, 0, 0); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + + similar = cairo_surface_reference (cairo_get_target (cr)); + cairo_destroy (cr); + + return similar; +} + +static void +draw_image (const cairo_test_context_t *ctx, + cairo_t *cr, + cairo_surface_t *image) +{ + cairo_set_source_surface (cr, image, 0, 0); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); +} + +static void +draw (const cairo_test_context_t *ctx, + cairo_t *cr, + cairo_surface_t *image, + cairo_rectangle_t *region, + int n_regions) +{ + cairo_save (cr); + if (region != NULL) { + int i; + for (i = 0; i < n_regions; i++) { + cairo_rectangle (cr, + region[i].x, region[i].y, + region[i].width, region[i].height); + } + cairo_clip (cr); + } + cairo_push_group (cr); + draw_image (ctx, cr, image); + draw_mask (cr); + cairo_pop_group_to_source (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + cairo_restore (cr); +} + +static cairo_test_status_t +draw_func (cairo_t *cr, int width, int height) +{ + cairo_rectangle_t region[4]; + const cairo_test_context_t *ctx; + cairo_surface_t *source, *image; + int i, j; + + ctx = cairo_test_get_context (cr); + + source = cairo_test_create_surface_from_png (ctx, png_filename); + image = clone_similar_surface (cairo_get_group_target (cr), source); + cairo_surface_destroy (source); + + cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR); + draw (ctx, cr, image, NULL, 0); + for (i = 0; i < NLOOPS; i++) { + for (j = 0; j < NLOOPS; j++) { + region[0].x = i * SIZE / NLOOPS; + region[0].y = i * SIZE / NLOOPS; + region[0].width = SIZE / 4; + region[0].height = SIZE / 4; + + region[1].x = j * SIZE / NLOOPS; + region[1].y = j * SIZE / NLOOPS; + region[1].width = SIZE / 4; + region[1].height = SIZE / 4; + + region[2].x = i * SIZE / NLOOPS; + region[2].y = j * SIZE / NLOOPS; + region[2].width = SIZE / 4; + region[2].height = SIZE / 4; + + region[3].x = j * SIZE / NLOOPS; + region[3].y = i * SIZE / NLOOPS; + region[3].width = SIZE / 4; + region[3].height = SIZE / 4; + + draw (ctx, cr, image, region, 4); + } + } + + cairo_pop_group_to_source (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + + cairo_surface_destroy (image); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (xlib_expose_event, + "Emulate a typical expose event", + "xlib", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw_func) diff --git a/local/recipes/libs/cairo/source/test/xlib-surface-source.c b/local/recipes/libs/cairo/source/test/xlib-surface-source.c new file mode 100644 index 0000000000..7d2ed71c04 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/xlib-surface-source.c @@ -0,0 +1,100 @@ +/* + * Copyright © 2008 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include "cairo-test.h" +#include +#if CAIRO_HAS_XLIB_XRENDER_SURFACE +#include +#endif + +#include "surface-source.c" + +static cairo_user_data_key_t closure_key; + +struct closure { + cairo_device_t *device; + Display *dpy; + Pixmap pix; +}; + +static void +cleanup (void *data) +{ + struct closure *arg = data; + + cairo_device_finish (arg->device); + cairo_device_destroy (arg->device); + + XFreePixmap (arg->dpy, arg->pix); + XCloseDisplay (arg->dpy); + + free (arg); +} + +static cairo_surface_t * +create_source_surface (int size) +{ +#if CAIRO_HAS_XLIB_XRENDER_SURFACE + XRenderPictFormat *xrender_format; + struct closure *data; + cairo_surface_t *surface; + + data = xmalloc (sizeof (struct closure)); + + data->dpy = XOpenDisplay (NULL); + if (!data->dpy) { + return NULL; + } + + xrender_format = XRenderFindStandardFormat (data->dpy, PictStandardARGB32); + + data->pix = XCreatePixmap (data->dpy, DefaultRootWindow (data->dpy), + size, size, xrender_format->depth); + + surface = cairo_xlib_surface_create_with_xrender_format (data->dpy, + data->pix, + DefaultScreenOfDisplay (data->dpy), + xrender_format, + size, size); + data->device = cairo_device_reference (cairo_surface_get_device (surface)); + if (cairo_surface_set_user_data (surface, &closure_key, data, cleanup)) { + cairo_surface_finish (surface); + cairo_surface_destroy (surface); + cleanup (data); + return NULL; + } + + return surface; +#else + return NULL; +#endif +} + +CAIRO_TEST (xlib_surface_source, + "Test using a Xlib surface as the source", + "source", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + preamble, draw) diff --git a/local/recipes/libs/cairo/source/test/xlib-surface.c b/local/recipes/libs/cairo/source/test/xlib-surface.c new file mode 100644 index 0000000000..137b282327 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/xlib-surface.c @@ -0,0 +1,353 @@ +/* + * Copyright © 2005 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#include +#include + +#include "cairo.h" +#include "cairo-xlib.h" + +#include "cairo-boilerplate-xlib.h" + +#include "buffer-diff.h" + +#define SIZE 100 +#define OFFSCREEN_OFFSET 50 + +cairo_bool_t result = 0; + +#if CAIRO_HAS_XLIB_XRENDER_SURFACE + +#include "cairo-xlib-xrender.h" + +/* Vladimir Vukicevic reported that surfaces were being created with + * mismatching Visuals and XRenderPictFormats. + */ +static cairo_bool_t +surface_compare_visual_and_format (cairo_surface_t *surface) +{ + Display *dpy; + Visual *visual; + XRenderPictFormat *format; + + dpy = cairo_xlib_surface_get_display (surface); + + visual = cairo_xlib_surface_get_visual (surface); + if (visual == NULL) + return TRUE; + + format = cairo_xlib_surface_get_xrender_format (surface); + if (format == NULL) + return TRUE; + + return format == XRenderFindVisualFormat (dpy, visual); + +} +#else + +static cairo_bool_t +surface_compare_visual_and_format (cairo_surface_t *surface) +{ + return TRUE; +} + +#endif + +static cairo_bool_t +check_similar_visual_and_format (cairo_surface_t *surface) +{ + cairo_surface_t *similar; + cairo_bool_t ret; + + similar = cairo_surface_create_similar (surface, + CAIRO_CONTENT_COLOR_ALPHA, + 1, 1); + if (cairo_surface_status (similar)) + return FALSE; + + ret = surface_compare_visual_and_format (similar); + + cairo_surface_destroy (similar); + + return ret; +} + + +static void +draw_pattern (cairo_surface_t *surface) +{ + cairo_t *cr = cairo_create (surface); + int i; + + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_set_source_rgba (cr, 0, 0.0, 0.0, 0.50); /* half-alpha-black */ + + for (i = 1; i <= 3; i++) { + int inset = SIZE / 8 * i; + + cairo_rectangle (cr, + inset, inset, + SIZE - 2 * inset, SIZE - 2 * inset); + cairo_fill (cr); + } + + cairo_destroy (cr); +} + +static void +erase_pattern (cairo_surface_t *surface) +{ + cairo_t *cr = cairo_create (surface); + + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */ + cairo_paint (cr); + + cairo_destroy (cr); +} + +static cairo_test_status_t +do_test (const cairo_test_context_t *ctx, + Display *dpy, + unsigned char *reference_data, + unsigned char *test_data, + unsigned char *diff_data, + cairo_bool_t use_pixmap, + cairo_bool_t set_size, + cairo_bool_t offscreen) +{ + cairo_surface_t *surface; + cairo_surface_t *test_surface; + cairo_t *test_cr; + buffer_diff_result_t result; + Drawable drawable; + int screen = DefaultScreen (dpy); + + if (use_pixmap && offscreen) + return CAIRO_TEST_SUCCESS; + + if (use_pixmap) { + drawable = XCreatePixmap (dpy, DefaultRootWindow (dpy), + SIZE, SIZE, DefaultDepth (dpy, screen)); + } else { + XSetWindowAttributes xwa; + int x, y; + + xwa.override_redirect = True; + + if (offscreen) { + x = - OFFSCREEN_OFFSET; + y = - OFFSCREEN_OFFSET; + } else { + x = 0; + y = 0; + } + + drawable = XCreateWindow (dpy, DefaultRootWindow (dpy), + x, y, SIZE, SIZE, 0, + DefaultDepth (dpy, screen), InputOutput, + DefaultVisual (dpy, screen), + CWOverrideRedirect, &xwa); + XMapWindow (dpy, drawable); + } + + surface = cairo_xlib_surface_create (dpy, + drawable, + DefaultVisual (dpy, screen), + SIZE, SIZE); + + if (! surface_compare_visual_and_format (surface)) + return CAIRO_TEST_FAILURE; + + if (set_size) { + cairo_xlib_surface_set_size (surface, SIZE, SIZE); + + if (cairo_xlib_surface_get_width (surface) != SIZE || + cairo_xlib_surface_get_height (surface) != SIZE) + return CAIRO_TEST_FAILURE; + } + + if (! check_similar_visual_and_format (surface)) + return CAIRO_TEST_FAILURE; + + draw_pattern (surface); + + test_surface = cairo_image_surface_create_for_data (test_data, + CAIRO_FORMAT_RGB24, + SIZE, SIZE, + SIZE * 4); + + test_cr = cairo_create (test_surface); + cairo_set_source_surface (test_cr, surface, 0, 0); + cairo_paint (test_cr); + + cairo_destroy (test_cr); + cairo_surface_destroy (test_surface); + + /* We erase the surface to black in case we get the same + * memory back again for the pixmap case. + */ + erase_pattern (surface); + cairo_surface_destroy (surface); + + if (use_pixmap) + XFreePixmap (dpy, drawable); + else + XDestroyWindow (dpy, drawable); + + if (offscreen) { + size_t offset = 4 * (SIZE * OFFSCREEN_OFFSET + OFFSCREEN_OFFSET); + + buffer_diff_noalpha (reference_data + offset, + test_data + offset, + diff_data + offset, + SIZE - OFFSCREEN_OFFSET, + SIZE - OFFSCREEN_OFFSET, + 4 * SIZE, + &result); + } else { + buffer_diff_noalpha (reference_data, + test_data, + diff_data, + SIZE, + SIZE, + 4 * SIZE, + &result); + } + + cairo_test_log (ctx, "xlib-surface: %s, %s, %s: %s\n", + set_size ? " size" : "no-size", + use_pixmap ? "pixmap" : "window", + use_pixmap ? " " : (offscreen ? ", offscreen" : ", onscreen"), + image_diff_is_failure (&result, 0) ? "FAIL" : "PASS"); + + if (image_diff_is_failure (&result, 0)) + return CAIRO_TEST_FAILURE; + else + return CAIRO_TEST_SUCCESS; +} + +static cairo_bool_t +check_visual (Display *dpy) +{ + Visual *visual = DefaultVisual (dpy, DefaultScreen (dpy)); + + if ((visual->red_mask == 0xff0000 && + visual->green_mask == 0x00ff00 && + visual->blue_mask == 0x0000ff) || + (visual->red_mask == 0x0000ff && + visual->green_mask == 0x00ff00 && + visual->blue_mask == 0xff0000)) + return 1; + else + return 0; +} + +#undef xcalloc +static void * +xcalloc (const cairo_test_context_t *ctx, size_t a, size_t b) +{ + void *ptr = calloc (a, b); + if (ptr == NULL) { + cairo_test_log (ctx, "xlib-surface: unable to allocate memory, skipping\n"); + abort (); + } + return ptr; +} + +static cairo_test_status_t +preamble (cairo_test_context_t *ctx) +{ + Display *dpy; + unsigned char *reference_data; + unsigned char *test_data; + unsigned char *diff_data; + cairo_surface_t *reference_surface; + cairo_bool_t use_pixmap; + cairo_bool_t set_size; + cairo_bool_t offscreen; + cairo_test_status_t status, result = CAIRO_TEST_UNTESTED; + int stride; + + if (! cairo_test_is_target_enabled (ctx, "xlib")) + goto CLEANUP_TEST; + + dpy = XOpenDisplay (NULL); + if (!dpy) { + cairo_test_log (ctx, "xlib-surface: Cannot open display, skipping\n"); + goto CLEANUP_TEST; + } + + if (!check_visual (dpy)) { + cairo_test_log (ctx, "xlib-surface: default visual is not RGB24 or BGR24, skipping\n"); + goto CLEANUP_DISPLAY; + } + + stride = cairo_format_stride_for_width (CAIRO_FORMAT_RGB24, SIZE); + + reference_data = xcalloc (ctx, SIZE, stride); + test_data = xcalloc (ctx, SIZE, stride); + diff_data = xcalloc (ctx, SIZE, stride); + + reference_surface = cairo_image_surface_create_for_data (reference_data, + CAIRO_FORMAT_RGB24, + SIZE, SIZE, + stride); + + draw_pattern (reference_surface); + cairo_surface_destroy (reference_surface); + + result = CAIRO_TEST_SUCCESS; + + for (set_size = 0; set_size <= 1; set_size++) + for (use_pixmap = 0; use_pixmap <= 1; use_pixmap++) + for (offscreen = 0; offscreen <= 1; offscreen++) { + status = do_test (ctx, dpy, + reference_data, test_data, diff_data, + use_pixmap, set_size, offscreen); + if (status) + result = status; + } + + free (reference_data); + free (test_data); + free (diff_data); + + CLEANUP_DISPLAY: + XCloseDisplay (dpy); + + CLEANUP_TEST: + return result; +} + +CAIRO_TEST (xlib_surface, + "Check creating surfaces for various XWindows", + "xlib", /* keywords */ + NULL, /* requirements */ + 0, 0, + preamble, NULL) diff --git a/local/recipes/libs/cairo/source/test/zero-alpha.c b/local/recipes/libs/cairo/source/test/zero-alpha.c new file mode 100644 index 0000000000..01da92c968 --- /dev/null +++ b/local/recipes/libs/cairo/source/test/zero-alpha.c @@ -0,0 +1,95 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +#include "cairo-test.h" + +#define SIZE 3 +#define REPS 10 + +/* History: + * + * 2006-06-13 Paul Giblock reports a "Strange alpha channel problem" on + * the cairo mailing list. + * + * 2006-06-13 Carl Worth writes this test in an attempt to reproduce + * the problem. The test first fills in a 3x3 rectangle with red, then + * starts pounding on that center pixel with various forms of + * zero-alpha rendering to see if its value can ever be made to + * change. + * + * 2006-06-13 Paul Giblock reports that this only happens with the + * xlib backend, and then only on some systems. + */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + cairo_surface_t *surface; + uint32_t zero = 0; + + /* First paint background red. */ + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); /* red */ + cairo_paint (cr); + + /* Then we paint zero-alpha in several ways (always REPS times): */ + + /* 1. fill a rectangle with a zero-alpha solid source. */ + cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.0); /* transparent */ + cairo_rectangle (cr, 1.0, 1.0, 1.0, 1.0); + for (i=0; i < REPS; i++) + cairo_fill_preserve (cr); + cairo_new_path (cr); + + /* 2. paint with a zero-alpha image surface source. */ + surface = cairo_image_surface_create_for_data ((unsigned char *) &zero, + CAIRO_FORMAT_ARGB32, 1, 1, 4); + cairo_set_source_surface (cr, surface, 1, 1); + for (i=0; i < REPS; i++) + cairo_paint (cr); + + /* 3. clip to rectangle then paint with zero-alpha solid source. */ + cairo_rectangle (cr, 1.0, 1.0, 1.0, 1.0); + cairo_clip (cr); + cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.0); /* transparent */ + for (i=0; i < REPS; i++) + cairo_paint (cr); + + /* 4. With the clip still there, paint our image surface. */ + cairo_set_source_surface (cr, surface, 1, 1); + for (i=0; i < REPS; i++) + cairo_paint (cr); + + cairo_surface_finish (surface); /* zero will go out of scope */ + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (zero_alpha, + "Testing that drawing with zero alpha has no effect", + "alpha", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) diff --git a/local/recipes/libs/cairo/source/test/zero-mask.c b/local/recipes/libs/cairo/source/test/zero-mask.c new file mode 100644 index 0000000000..3d2f34d0ee --- /dev/null +++ b/local/recipes/libs/cairo/source/test/zero-mask.c @@ -0,0 +1,198 @@ +/* + * Copyright © 2010 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Benjamin Otte + */ + +#include "cairo-test.h" + +#define RECT 10 +#define SPACE 5 + +static void +paint_with_alpha (cairo_t *cr) +{ + cairo_paint_with_alpha (cr, 0.0); +} + +static void +mask_with_solid (cairo_t *cr) +{ + cairo_pattern_t *pattern = cairo_pattern_create_rgba (1, 0, 0, 0); + + cairo_mask (cr, pattern); + + cairo_pattern_destroy (pattern); +} + +static void +mask_with_empty_gradient (cairo_t *cr) +{ + cairo_pattern_t *pattern = cairo_pattern_create_linear (1, 2, 3, 4); + + cairo_mask (cr, pattern); + + cairo_pattern_destroy (pattern); +} + +static void +mask_with_gradient (cairo_t *cr) +{ + cairo_pattern_t *pattern = cairo_pattern_create_radial (1, 2, 3, 4, 5, 6); + + cairo_pattern_add_color_stop_rgba (pattern, 0, 1, 0, 0, 0); + cairo_pattern_add_color_stop_rgba (pattern, 0, 0, 0, 1, 0); + + cairo_mask (cr, pattern); + + cairo_pattern_destroy (pattern); +} + +static void +mask_with_surface (cairo_t *cr) +{ + cairo_surface_t *surface = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + RECT, + RECT); + + cairo_mask_surface (cr, surface, 0, 0); + + cairo_surface_destroy (surface); +} + +static void +mask_with_alpha_surface (cairo_t *cr) +{ + cairo_surface_t *surface = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_ALPHA, + RECT / 2, + RECT / 2); + cairo_pattern_t *pattern = cairo_pattern_create_for_surface (surface); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REFLECT); + + cairo_mask (cr, pattern); + + cairo_pattern_destroy (pattern); + cairo_surface_destroy (surface); +} + +static void +mask_with_nonclear_surface (cairo_t *cr) +{ + static unsigned char data[8 * 4] = { 0, }; + cairo_surface_t *surface = cairo_image_surface_create_for_data (data, + CAIRO_FORMAT_A1, + 16, 8, 4); + + cairo_mask_surface (cr, surface, 0, 0); + + cairo_surface_destroy (surface); +} + +static void +mask_with_0x0_surface (cairo_t *cr) +{ + cairo_surface_t *surface = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + 0, 0); + + cairo_mask_surface (cr, surface, 0, 0); + + cairo_surface_destroy (surface); +} + +static void +mask_with_extend_none (cairo_t *cr) +{ + cairo_surface_t *surface = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + RECT, + RECT); + + cairo_mask_surface (cr, surface, 2 * RECT, 2 * RECT); + + cairo_surface_destroy (surface); +} + +typedef void (* mask_func_t) (cairo_t *); + +static mask_func_t mask_funcs[] = { + paint_with_alpha, + mask_with_solid, + mask_with_empty_gradient, + mask_with_gradient, + mask_with_surface, + mask_with_alpha_surface, + mask_with_nonclear_surface, + mask_with_0x0_surface, + mask_with_extend_none +}; + +static cairo_operator_t operators[] = { + CAIRO_OPERATOR_CLEAR, + CAIRO_OPERATOR_SOURCE, + CAIRO_OPERATOR_OVER, + CAIRO_OPERATOR_IN, + CAIRO_OPERATOR_DEST_ATOP, + CAIRO_OPERATOR_SATURATE, + CAIRO_OPERATOR_MULTIPLY +}; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + unsigned int i, op; + + /* 565-compatible gray background */ + cairo_set_source_rgb (cr, 0.51613, 0.55555, 0.51613); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); /* green */ + /* mask with zero-alpha in several ways */ + + cairo_translate (cr, SPACE, SPACE); + + for (op = 0; op < ARRAY_LENGTH (operators); op++) { + cairo_set_operator (cr, operators[op]); + + for (i = 0; i < ARRAY_LENGTH (mask_funcs); i++) { + cairo_save (cr); + cairo_translate (cr, i * (RECT + SPACE), op * (RECT + SPACE)); + cairo_rectangle (cr, 0, 0, RECT, RECT); + cairo_clip (cr); + mask_funcs[i] (cr); + cairo_restore (cr); + } + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (zero_mask, + "Testing that masking with zero alpha works", + "alpha, mask", /* keywords */ + NULL, /* requirements */ + SPACE + (RECT + SPACE) * ARRAY_LENGTH (mask_funcs), + SPACE + (RECT + SPACE) * ARRAY_LENGTH (operators), + NULL, draw) diff --git a/local/recipes/libs/cairo/source/util/.gitignore b/local/recipes/libs/cairo/source/util/.gitignore new file mode 100644 index 0000000000..9a28da1b9c --- /dev/null +++ b/local/recipes/libs/cairo/source/util/.gitignore @@ -0,0 +1,24 @@ +.deps +.libs +Makefile +Makefile.in +show-contour +show-edges +show-events +show-polygon +show-traps +xml-to-trace +trace-to-xml +*.so +*.la +*.lo +*.loT +*.o +*.obj +*.pdb +*.dll +*.exp +*.lib +*~ +.*.sw? +TAGS diff --git a/local/recipes/libs/cairo/source/util/COPYING b/local/recipes/libs/cairo/source/util/COPYING new file mode 100644 index 0000000000..ea44bb6f5c --- /dev/null +++ b/local/recipes/libs/cairo/source/util/COPYING @@ -0,0 +1,4 @@ +Cairo is free software. + +These utilities are all free software, please see the licensing conditions +in the opening comments of each file. diff --git a/local/recipes/libs/cairo/source/util/README b/local/recipes/libs/cairo/source/util/README new file mode 100644 index 0000000000..90e1f7fab1 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/README @@ -0,0 +1,28 @@ +Cairo Utilities +=============== + +There are a varieties of utilities we use with cairo. + +cairo-trace +----------- + +This tool can be used to trace all the cairo function calls made by an +applications. This is useful for either extracting a test case triggering +a bug from an application, or simply to get a general idea of how an +application is using cairo. + + +cairo-api-update and xr2cairo +----------------------------- + +These two scripts were used to convert source code written for pre-1.0 +cairo to newer API. See $(top_srcdir)/PORTING_GUIDE for more information. + +These files are obsolete now and may be removed in a future version. + + +cairo-view and waterfall +------------------------ + +These are two pycairo scripts useful for testing the toy font backend. + diff --git a/local/recipes/libs/cairo/source/util/cairo-api-update b/local/recipes/libs/cairo/source/util/cairo-api-update new file mode 100755 index 0000000000..cff33317b5 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-api-update @@ -0,0 +1,72 @@ +#!/bin/sh +set -e + +if [ $# -lt 1 ]; then + argv0=`basename $0` + echo "$argv0: Update source code to the latest Cairo API" >&2 + echo "" >&2 + echo "Usage: $argv0 file [...]" >&2 + exit 1 +fi + +cairo_api_update() { + file=$1 + backup=$file.bak + + cp $file $backup + sed -e '/\(DEPRECATED\|REPLACED\)_BY/! { + s/cairo_current_font_extents/cairo_font_extents/g + s/cairo_get_font_extents/cairo_font_extents/g + s/cairo_current_operator/cairo_get_operator/g + s/cairo_current_tolerance/cairo_get_tolerance/g + s/cairo_current_point/cairo_get_current_point/g + s/cairo_current_fill_rule/cairo_get_fill_rule/g + s/cairo_current_line_width/cairo_get_line_width/g + s/cairo_current_line_cap/cairo_get_line_cap/g + s/cairo_current_line_join/cairo_get_line_join/g + s/cairo_current_miter_limit/cairo_get_miter_limit/g + s/cairo_current_matrix/cairo_get_matrix/g + s/cairo_current_pattern/cairo_get_source/g + s/cairo_current_target_surface/cairo_get_target/g + s/cairo_get_status/cairo_status/g + s/cairo_get_status_string/cairo_status_string/g + s/cairo_concat_matrix/cairo_transform/g + s/cairo_scale_font/cairo_set_font_size/g + s/cairo_select_font\([^_]\)/cairo_select_font_face\1/g + s/cairo_transform_font/cairo_set_font_matrix/g + s/cairo_transform_point/cairo_user_to_device/g + s/cairo_transform_distance/cairo_user_to_device_distance/g + s/cairo_inverse_transform_point/cairo_device_to_user/g + s/cairo_inverse_transform_distance/cairo_device_to_user_distance/g + s/cairo_init_clip/cairo_reset_clip/g + s/cairo_surface_create_for_image/cairo_image_surface_create_for_data/g + s/cairo_default_matrix/cairo_identity_matrix/g + s/cairo_matrix_set_affine/cairo_matrix_init/g + s/cairo_matrix_set_identity/cairo_matrix_init_identity/g + s/\([^_]\)cairo_pattern_add_color_stop\([^_]\)/\1cairo_pattern_add_color_stop_rgba\2/g + s/cairo_set_rgb_color/cairo_set_source_rgb/g + s/cairo_set_pattern/cairo_set_source/g + s/CAIRO_OPERATOR_SRC/CAIRO_OPERATOR_SOURCE/g + s/CAIRO_OPERATOR_DST/CAIRO_OPERATOR_DEST/g + s/CAIRO_OPERATOR_OVER_REVERSE/CAIRO_OPERATOR_DEST_OVER/g + s/CAIRO_OPERATOR_IN_REVERSE/CAIRO_OPERATOR_DEST_IN/g + s/CAIRO_OPERATOR_OUT_REVERSE/CAIRO_OPERATOR_DEST_OUT/g + s/CAIRO_OPERATOR_ATOP_REVERSE/CAIRO_OPERATOR_DEST_ATOP/g + } + ' $backup > $file + + grep -n 'cairo_create[ ]*([ ]*)' $file /dev/null | sed 's/^\(.*:[0-9]\+:\).*/\1 cairo_create must now accept a target surface/' + grep -n 'cairo_set_target_image' $file /dev/null | sed 's/^\(.*:[0-9]\+:\).*/\1 cairo_set_target_image should be reworked to use cairo_image_surface_create_for_data, likely before cairo_create/' + grep -n 'cairo_set_target_surface' $file /dev/null | sed 's/^\(.*:[0-9]\+:\).*/\1 cairo_set_target_surface for temporarily changing the target should now be rworked to create a temporary context with cairo_create/' + grep -n 'cairo_set_target_png' $file /dev/null | sed 's/^\(.*:[0-9]\+:\).*/\1 cairo_set_target_png should be reworked to use cairo_image_surface_create followed by cairo_surface_write_to_png/' + grep -n 'cairo_set_target_drawable' $file /dev/null | sed 's/^\(.*:[0-9]\+:\).*/\1 cairo_set_target_drawable should be reworked to use cairo_xlib_surface_create, likely before cairo_create/' + grep -n 'cairo_set_target_[^dis][^n]' $file /dev/null | sed 's/^\(.*:[0-9]\+:\).*cairo_set_target_\([a-z]*\).*/\1 cairo_set_target_\2 should be reworked to use cairo_\2_surface_create, likely before cairo_create/' + grep -n 'cairo_set_alpha' $file /dev/null | sed 's/\(.*:[0-9]\+:\).*/\1 cairo_set_alpha should be replaced by turning a nearby cairo_set_source_rgb into cairo_set_source_rgba or turning a nearby cairo_paint into cairo_paint_with_alpha/' +} + +while [ $# -gt 0 ]; do + file=$1 + shift + cairo_api_update $file +done + diff --git a/local/recipes/libs/cairo/source/util/cairo-fdr/fdr.c b/local/recipes/libs/cairo/source/util/cairo-fdr/fdr.c new file mode 100644 index 0000000000..edbd53a5bf --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-fdr/fdr.c @@ -0,0 +1,327 @@ +/* cairo-fdr - a 'flight data recorder', a black box, for cairo + * + * Copyright © 2009 Chris Wilson + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include "config.h" + +#include +#include +#include +#include +#include +#include + +#include + +static void *_dlhandle = RTLD_NEXT; +#define DLCALL(name, args...) ({ \ + static typeof (&name) name##_real; \ + if (name##_real == NULL) { \ + name##_real = dlsym (_dlhandle, #name); \ + if (name##_real == NULL && _dlhandle == RTLD_NEXT) { \ + _dlhandle = dlopen ("libcairo.so", RTLD_LAZY); \ + name##_real = dlsym (_dlhandle, #name); \ + assert (name##_real != NULL); \ + } \ + } \ + (*name##_real) (args); \ +}) + +#define RINGBUFFER_SIZE 16 +static cairo_surface_t *fdr_ringbuffer[RINGBUFFER_SIZE]; +static int fdr_position; +static int fdr_dump; + +static const cairo_user_data_key_t fdr_key; + +static void +fdr_replay_to_script (cairo_surface_t *recording, cairo_device_t *ctx) +{ + if (recording != NULL) { + DLCALL (cairo_script_write_comment, ctx, "--- fdr ---", -1); + DLCALL (cairo_script_from_recording_surface, ctx, recording); + } +} + +static void +fdr_dump_ringbuffer (void) +{ + cairo_device_t *ctx; + int n; + + ctx = DLCALL (cairo_script_create, "/tmp/fdr.trace"); + + for (n = fdr_position; n < RINGBUFFER_SIZE; n++) + fdr_replay_to_script (fdr_ringbuffer[n], ctx); + + for (n = 0; n < fdr_position; n++) + fdr_replay_to_script (fdr_ringbuffer[n], ctx); + + DLCALL (cairo_device_destroy, ctx); +} + +static void +fdr_sighandler (int sig) +{ + fdr_dump = 1; +} + +static void +fdr_urgent_sighandler (int sig) +{ + fdr_dump_ringbuffer (); +} + +static void +fdr_atexit (void) +{ + if (fdr_dump) + fdr_dump_ringbuffer (); +} + +static void +fdr_pending_signals (void) +{ + static int initialized; + + if (! initialized) { + initialized = 1; + + signal (SIGUSR1, fdr_sighandler); + + signal (SIGSEGV, fdr_urgent_sighandler); + signal (SIGABRT, fdr_urgent_sighandler); + atexit (fdr_atexit); + } + + if (fdr_dump) { + fdr_dump_ringbuffer (); + fdr_dump = 0; + } +} + +static void +fdr_get_extents (cairo_surface_t *surface, + cairo_rectangle_t *extents) +{ + cairo_t *cr; + + cr = DLCALL (cairo_create, surface); + DLCALL (cairo_clip_extents, cr, + &extents->x, &extents->y, &extents->width, &extents->height); + DLCALL (cairo_destroy, cr); + + extents->width -= extents->x; + extents->height -= extents->y; +} + +static void +fdr_surface_destroy (void *surface) +{ + DLCALL (cairo_surface_destroy, surface); +} + +static void +fdr_surface_reference (void *surface) +{ + DLCALL (cairo_surface_reference, surface); +} + +static cairo_surface_t * +fdr_surface_get_tee (cairo_surface_t *surface) +{ + return DLCALL (cairo_surface_get_user_data, surface, &fdr_key); +} + +static cairo_surface_t * +fdr_tee_surface_index (cairo_surface_t *surface, int index) +{ + return DLCALL (cairo_tee_surface_index, surface, index); +} + +cairo_t * +cairo_create (cairo_surface_t *surface) +{ + cairo_surface_t *record, *tee; + + fdr_pending_signals (); + + tee = fdr_surface_get_tee (surface); + if (tee == NULL) { + cairo_rectangle_t extents; + cairo_content_t content; + + fdr_get_extents (surface, &extents); + content = DLCALL (cairo_surface_get_content, surface); + + tee = DLCALL (cairo_tee_surface_create, surface); + record = DLCALL (cairo_recording_surface_create, content, &extents); + DLCALL (cairo_tee_surface_add, tee, record); + + DLCALL (cairo_surface_set_user_data, surface, + &fdr_key, tee, fdr_surface_destroy); + } else { + int n; + + record = fdr_tee_surface_index (tee, 1); + + /* update the position of the recording surface in the ringbuffer */ + for (n = 0; n < RINGBUFFER_SIZE; n++) { + if (record == fdr_ringbuffer[n]) { + fdr_ringbuffer[n] = NULL; + break; + } + } + } + + fdr_surface_destroy (fdr_ringbuffer[fdr_position]); + fdr_ringbuffer[fdr_position] = record; + fdr_position = (fdr_position + 1) % RINGBUFFER_SIZE; + + return DLCALL (cairo_create, tee); +} + +static void +fdr_remove_tee (cairo_surface_t *surface) +{ + fdr_surface_reference (surface); + DLCALL (cairo_surface_set_user_data, surface, &fdr_key, NULL, NULL); + fdr_surface_destroy (surface); +} + +void +cairo_destroy (cairo_t *cr) +{ + cairo_surface_t *tee; + + tee = DLCALL (cairo_get_target, cr); + DLCALL (cairo_destroy, cr); + + if (DLCALL (cairo_surface_get_reference_count, tee) == 1) + fdr_remove_tee (fdr_tee_surface_index (tee, 0)); +} + +void +cairo_pattern_destroy (cairo_pattern_t *pattern) +{ + if (DLCALL (cairo_pattern_get_type, pattern) == CAIRO_PATTERN_TYPE_SURFACE) { + cairo_surface_t *surface; + + if (DLCALL (cairo_pattern_get_surface, pattern, &surface) == CAIRO_STATUS_SUCCESS && + DLCALL (cairo_surface_get_type, surface) == CAIRO_SURFACE_TYPE_TEE && + DLCALL (cairo_surface_get_reference_count, surface) == 2) + { + fdr_remove_tee (fdr_tee_surface_index (surface, 0)); + } + } + + DLCALL (cairo_pattern_destroy, pattern); +} + +cairo_surface_t * +cairo_get_target (cairo_t *cr) +{ + cairo_surface_t *tee; + + tee = DLCALL (cairo_get_target, cr); + return fdr_tee_surface_index (tee, 0); +} + +cairo_surface_t * +cairo_get_group_target (cairo_t *cr) +{ + cairo_surface_t *tee; + + tee = DLCALL (cairo_get_group_target, cr); + return fdr_tee_surface_index (tee, 0); +} + +cairo_pattern_t * +cairo_pattern_create_for_surface (cairo_surface_t *surface) +{ + cairo_surface_t *tee; + + tee = fdr_surface_get_tee (surface); + if (tee != NULL) + surface = tee; + + return DLCALL (cairo_pattern_create_for_surface, surface); +} + +cairo_status_t +cairo_pattern_get_surface (cairo_pattern_t *pattern, + cairo_surface_t **surface) +{ + cairo_status_t status; + cairo_surface_t *tee; + + status = DLCALL (cairo_pattern_get_surface, pattern, surface); + if (status != CAIRO_STATUS_SUCCESS) + return status; + + tee = fdr_surface_get_tee (*surface); + if (tee != NULL) + *surface = tee; + + return CAIRO_STATUS_SUCCESS; +} + +void +cairo_set_source_surface (cairo_t *cr, + cairo_surface_t *surface, + double x, double y) +{ + cairo_surface_t *tee; + + tee = fdr_surface_get_tee (surface); + if (tee != NULL) + surface = tee; + + DLCALL (cairo_set_source_surface, cr, surface, x, y); +} + +cairo_surface_t * +cairo_surface_create_similar (cairo_surface_t *surface, + cairo_content_t content, + int width, int height) +{ + cairo_surface_t *tee; + + tee = fdr_surface_get_tee (surface); + if (tee != NULL) + surface = tee; + + return DLCALL (cairo_surface_create_similar, + surface, content, width, height); +} + +cairo_surface_t * +cairo_surface_create_for_rectangle (cairo_surface_t *surface, + double x, + double y, + double width, + double height) +{ + cairo_surface_t *tee; + + tee = fdr_surface_get_tee (surface); + if (tee != NULL) + surface = tee; + + return DLCALL (cairo_surface_create_for_rectangle, + surface, x, y, width, height); +} diff --git a/local/recipes/libs/cairo/source/util/cairo-fdr/meson.build b/local/recipes/libs/cairo/source/util/cairo-fdr/meson.build new file mode 100644 index 0000000000..0d00e43f72 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-fdr/meson.build @@ -0,0 +1,12 @@ +cairo_fdr_sources = [ + 'fdr.c', +] + +libcairofdr = library('cairo-fdr', cairo_fdr_sources, + include_directories: [incbase, incsrc], + dependencies: deps, + gnu_symbol_visibility: 'hidden', + link_args: extra_link_args, + install: true, + install_dir: get_option('libdir') / 'cairo', +) diff --git a/local/recipes/libs/cairo/source/util/cairo-gobject/cairo-gobject-enums.c b/local/recipes/libs/cairo/source/util/cairo-gobject/cairo-gobject-enums.c new file mode 100644 index 0000000000..cd3bb4b7a9 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-gobject/cairo-gobject-enums.c @@ -0,0 +1,514 @@ + +/* Generated data (by glib-mkenums) */ + +#include "config.h" + +#include "cairo-gobject.h" + +GType +cairo_gobject_status_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_STATUS_SUCCESS, "CAIRO_STATUS_SUCCESS", "success" }, + { CAIRO_STATUS_NO_MEMORY, "CAIRO_STATUS_NO_MEMORY", "no-memory" }, + { CAIRO_STATUS_INVALID_RESTORE, "CAIRO_STATUS_INVALID_RESTORE", "invalid-restore" }, + { CAIRO_STATUS_INVALID_POP_GROUP, "CAIRO_STATUS_INVALID_POP_GROUP", "invalid-pop-group" }, + { CAIRO_STATUS_NO_CURRENT_POINT, "CAIRO_STATUS_NO_CURRENT_POINT", "no-current-point" }, + { CAIRO_STATUS_INVALID_MATRIX, "CAIRO_STATUS_INVALID_MATRIX", "invalid-matrix" }, + { CAIRO_STATUS_INVALID_STATUS, "CAIRO_STATUS_INVALID_STATUS", "invalid-status" }, + { CAIRO_STATUS_NULL_POINTER, "CAIRO_STATUS_NULL_POINTER", "null-pointer" }, + { CAIRO_STATUS_INVALID_STRING, "CAIRO_STATUS_INVALID_STRING", "invalid-string" }, + { CAIRO_STATUS_INVALID_PATH_DATA, "CAIRO_STATUS_INVALID_PATH_DATA", "invalid-path-data" }, + { CAIRO_STATUS_READ_ERROR, "CAIRO_STATUS_READ_ERROR", "read-error" }, + { CAIRO_STATUS_WRITE_ERROR, "CAIRO_STATUS_WRITE_ERROR", "write-error" }, + { CAIRO_STATUS_SURFACE_FINISHED, "CAIRO_STATUS_SURFACE_FINISHED", "surface-finished" }, + { CAIRO_STATUS_SURFACE_TYPE_MISMATCH, "CAIRO_STATUS_SURFACE_TYPE_MISMATCH", "surface-type-mismatch" }, + { CAIRO_STATUS_PATTERN_TYPE_MISMATCH, "CAIRO_STATUS_PATTERN_TYPE_MISMATCH", "pattern-type-mismatch" }, + { CAIRO_STATUS_INVALID_CONTENT, "CAIRO_STATUS_INVALID_CONTENT", "invalid-content" }, + { CAIRO_STATUS_INVALID_FORMAT, "CAIRO_STATUS_INVALID_FORMAT", "invalid-format" }, + { CAIRO_STATUS_INVALID_VISUAL, "CAIRO_STATUS_INVALID_VISUAL", "invalid-visual" }, + { CAIRO_STATUS_FILE_NOT_FOUND, "CAIRO_STATUS_FILE_NOT_FOUND", "file-not-found" }, + { CAIRO_STATUS_INVALID_DASH, "CAIRO_STATUS_INVALID_DASH", "invalid-dash" }, + { CAIRO_STATUS_INVALID_DSC_COMMENT, "CAIRO_STATUS_INVALID_DSC_COMMENT", "invalid-dsc-comment" }, + { CAIRO_STATUS_INVALID_INDEX, "CAIRO_STATUS_INVALID_INDEX", "invalid-index" }, + { CAIRO_STATUS_CLIP_NOT_REPRESENTABLE, "CAIRO_STATUS_CLIP_NOT_REPRESENTABLE", "clip-not-representable" }, + { CAIRO_STATUS_TEMP_FILE_ERROR, "CAIRO_STATUS_TEMP_FILE_ERROR", "temp-file-error" }, + { CAIRO_STATUS_INVALID_STRIDE, "CAIRO_STATUS_INVALID_STRIDE", "invalid-stride" }, + { CAIRO_STATUS_FONT_TYPE_MISMATCH, "CAIRO_STATUS_FONT_TYPE_MISMATCH", "font-type-mismatch" }, + { CAIRO_STATUS_USER_FONT_IMMUTABLE, "CAIRO_STATUS_USER_FONT_IMMUTABLE", "user-font-immutable" }, + { CAIRO_STATUS_USER_FONT_ERROR, "CAIRO_STATUS_USER_FONT_ERROR", "user-font-error" }, + { CAIRO_STATUS_NEGATIVE_COUNT, "CAIRO_STATUS_NEGATIVE_COUNT", "negative-count" }, + { CAIRO_STATUS_INVALID_CLUSTERS, "CAIRO_STATUS_INVALID_CLUSTERS", "invalid-clusters" }, + { CAIRO_STATUS_INVALID_SLANT, "CAIRO_STATUS_INVALID_SLANT", "invalid-slant" }, + { CAIRO_STATUS_INVALID_WEIGHT, "CAIRO_STATUS_INVALID_WEIGHT", "invalid-weight" }, + { CAIRO_STATUS_INVALID_SIZE, "CAIRO_STATUS_INVALID_SIZE", "invalid-size" }, + { CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED, "CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED", "user-font-not-implemented" }, + { CAIRO_STATUS_DEVICE_TYPE_MISMATCH, "CAIRO_STATUS_DEVICE_TYPE_MISMATCH", "device-type-mismatch" }, + { CAIRO_STATUS_DEVICE_ERROR, "CAIRO_STATUS_DEVICE_ERROR", "device-error" }, + { CAIRO_STATUS_INVALID_MESH_CONSTRUCTION, "CAIRO_STATUS_INVALID_MESH_CONSTRUCTION", "invalid-mesh-construction" }, + { CAIRO_STATUS_DEVICE_FINISHED, "CAIRO_STATUS_DEVICE_FINISHED", "device-finished" }, + { CAIRO_STATUS_JBIG2_GLOBAL_MISSING, "CAIRO_STATUS_JBIG2_GLOBAL_MISSING", "jbig2-global_missing" }, + { CAIRO_STATUS_PNG_ERROR, "CAIRO_STATUS_PNG_ERROR", "png-error" }, + { CAIRO_STATUS_FREETYPE_ERROR, "CAIRO_STATUS_FREETYPE_ERROR", "freetype-error" }, + { CAIRO_STATUS_LAST_STATUS, "CAIRO_STATUS_LAST_STATUS", "last-status" }, + { CAIRO_STATUS_WIN32_GDI_ERROR, "CAIRO_STATUS_WIN32_GDI_ERROR", "win32-gdi-error" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_status_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_content_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_CONTENT_COLOR, "CAIRO_CONTENT_COLOR", "color" }, + { CAIRO_CONTENT_ALPHA, "CAIRO_CONTENT_ALPHA", "alpha" }, + { CAIRO_CONTENT_COLOR_ALPHA, "CAIRO_CONTENT_COLOR_ALPHA", "color-alpha" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_content_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_operator_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_OPERATOR_CLEAR, "CAIRO_OPERATOR_CLEAR", "clear" }, + { CAIRO_OPERATOR_SOURCE, "CAIRO_OPERATOR_SOURCE", "source" }, + { CAIRO_OPERATOR_OVER, "CAIRO_OPERATOR_OVER", "over" }, + { CAIRO_OPERATOR_IN, "CAIRO_OPERATOR_IN", "in" }, + { CAIRO_OPERATOR_OUT, "CAIRO_OPERATOR_OUT", "out" }, + { CAIRO_OPERATOR_ATOP, "CAIRO_OPERATOR_ATOP", "atop" }, + { CAIRO_OPERATOR_DEST, "CAIRO_OPERATOR_DEST", "dest" }, + { CAIRO_OPERATOR_DEST_OVER, "CAIRO_OPERATOR_DEST_OVER", "dest-over" }, + { CAIRO_OPERATOR_DEST_IN, "CAIRO_OPERATOR_DEST_IN", "dest-in" }, + { CAIRO_OPERATOR_DEST_OUT, "CAIRO_OPERATOR_DEST_OUT", "dest-out" }, + { CAIRO_OPERATOR_DEST_ATOP, "CAIRO_OPERATOR_DEST_ATOP", "dest-atop" }, + { CAIRO_OPERATOR_XOR, "CAIRO_OPERATOR_XOR", "xor" }, + { CAIRO_OPERATOR_ADD, "CAIRO_OPERATOR_ADD", "add" }, + { CAIRO_OPERATOR_SATURATE, "CAIRO_OPERATOR_SATURATE", "saturate" }, + { CAIRO_OPERATOR_MULTIPLY, "CAIRO_OPERATOR_MULTIPLY", "multiply" }, + { CAIRO_OPERATOR_SCREEN, "CAIRO_OPERATOR_SCREEN", "screen" }, + { CAIRO_OPERATOR_OVERLAY, "CAIRO_OPERATOR_OVERLAY", "overlay" }, + { CAIRO_OPERATOR_DARKEN, "CAIRO_OPERATOR_DARKEN", "darken" }, + { CAIRO_OPERATOR_LIGHTEN, "CAIRO_OPERATOR_LIGHTEN", "lighten" }, + { CAIRO_OPERATOR_COLOR_DODGE, "CAIRO_OPERATOR_COLOR_DODGE", "color-dodge" }, + { CAIRO_OPERATOR_COLOR_BURN, "CAIRO_OPERATOR_COLOR_BURN", "color-burn" }, + { CAIRO_OPERATOR_HARD_LIGHT, "CAIRO_OPERATOR_HARD_LIGHT", "hard-light" }, + { CAIRO_OPERATOR_SOFT_LIGHT, "CAIRO_OPERATOR_SOFT_LIGHT", "soft-light" }, + { CAIRO_OPERATOR_DIFFERENCE, "CAIRO_OPERATOR_DIFFERENCE", "difference" }, + { CAIRO_OPERATOR_EXCLUSION, "CAIRO_OPERATOR_EXCLUSION", "exclusion" }, + { CAIRO_OPERATOR_HSL_HUE, "CAIRO_OPERATOR_HSL_HUE", "hsl-hue" }, + { CAIRO_OPERATOR_HSL_SATURATION, "CAIRO_OPERATOR_HSL_SATURATION", "hsl-saturation" }, + { CAIRO_OPERATOR_HSL_COLOR, "CAIRO_OPERATOR_HSL_COLOR", "hsl-color" }, + { CAIRO_OPERATOR_HSL_LUMINOSITY, "CAIRO_OPERATOR_HSL_LUMINOSITY", "hsl-luminosity" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_operator_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_antialias_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_ANTIALIAS_DEFAULT, "CAIRO_ANTIALIAS_DEFAULT", "default" }, + + { CAIRO_ANTIALIAS_NONE, "CAIRO_ANTIALIAS_NONE", "none" }, + { CAIRO_ANTIALIAS_GRAY, "CAIRO_ANTIALIAS_GRAY", "gray" }, + { CAIRO_ANTIALIAS_SUBPIXEL, "CAIRO_ANTIALIAS_SUBPIXEL", "subpixel" }, + + { CAIRO_ANTIALIAS_FAST, "CAIRO_ANTIALIAS_FAST", "fast" }, + { CAIRO_ANTIALIAS_GOOD, "CAIRO_ANTIALIAS_GOOD", "good" }, + { CAIRO_ANTIALIAS_BEST, "CAIRO_ANTIALIAS_BEST", "best" }, + + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_antialias_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_fill_rule_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_FILL_RULE_WINDING, "CAIRO_FILL_RULE_WINDING", "winding" }, + { CAIRO_FILL_RULE_EVEN_ODD, "CAIRO_FILL_RULE_EVEN_ODD", "even-odd" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_fill_rule_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_line_cap_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_LINE_CAP_BUTT, "CAIRO_LINE_CAP_BUTT", "butt" }, + { CAIRO_LINE_CAP_ROUND, "CAIRO_LINE_CAP_ROUND", "round" }, + { CAIRO_LINE_CAP_SQUARE, "CAIRO_LINE_CAP_SQUARE", "square" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_line_cap_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_line_join_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_LINE_JOIN_MITER, "CAIRO_LINE_JOIN_MITER", "miter" }, + { CAIRO_LINE_JOIN_ROUND, "CAIRO_LINE_JOIN_ROUND", "round" }, + { CAIRO_LINE_JOIN_BEVEL, "CAIRO_LINE_JOIN_BEVEL", "bevel" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_line_join_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_text_cluster_flags_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_TEXT_CLUSTER_FLAG_BACKWARD, "CAIRO_TEXT_CLUSTER_FLAG_BACKWARD", "backward" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_text_cluster_flags_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_font_slant_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_FONT_SLANT_NORMAL, "CAIRO_FONT_SLANT_NORMAL", "normal" }, + { CAIRO_FONT_SLANT_ITALIC, "CAIRO_FONT_SLANT_ITALIC", "italic" }, + { CAIRO_FONT_SLANT_OBLIQUE, "CAIRO_FONT_SLANT_OBLIQUE", "oblique" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_font_slant_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_font_weight_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_FONT_WEIGHT_NORMAL, "CAIRO_FONT_WEIGHT_NORMAL", "normal" }, + { CAIRO_FONT_WEIGHT_BOLD, "CAIRO_FONT_WEIGHT_BOLD", "bold" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_font_weight_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_subpixel_order_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_SUBPIXEL_ORDER_DEFAULT, "CAIRO_SUBPIXEL_ORDER_DEFAULT", "default" }, + { CAIRO_SUBPIXEL_ORDER_RGB, "CAIRO_SUBPIXEL_ORDER_RGB", "rgb" }, + { CAIRO_SUBPIXEL_ORDER_BGR, "CAIRO_SUBPIXEL_ORDER_BGR", "bgr" }, + { CAIRO_SUBPIXEL_ORDER_VRGB, "CAIRO_SUBPIXEL_ORDER_VRGB", "vrgb" }, + { CAIRO_SUBPIXEL_ORDER_VBGR, "CAIRO_SUBPIXEL_ORDER_VBGR", "vbgr" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_subpixel_order_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_hint_style_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_HINT_STYLE_DEFAULT, "CAIRO_HINT_STYLE_DEFAULT", "default" }, + { CAIRO_HINT_STYLE_NONE, "CAIRO_HINT_STYLE_NONE", "none" }, + { CAIRO_HINT_STYLE_SLIGHT, "CAIRO_HINT_STYLE_SLIGHT", "slight" }, + { CAIRO_HINT_STYLE_MEDIUM, "CAIRO_HINT_STYLE_MEDIUM", "medium" }, + { CAIRO_HINT_STYLE_FULL, "CAIRO_HINT_STYLE_FULL", "full" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_hint_style_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_hint_metrics_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_HINT_METRICS_DEFAULT, "CAIRO_HINT_METRICS_DEFAULT", "default" }, + { CAIRO_HINT_METRICS_OFF, "CAIRO_HINT_METRICS_OFF", "off" }, + { CAIRO_HINT_METRICS_ON, "CAIRO_HINT_METRICS_ON", "on" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_hint_metrics_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_font_type_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_FONT_TYPE_TOY, "CAIRO_FONT_TYPE_TOY", "toy" }, + { CAIRO_FONT_TYPE_FT, "CAIRO_FONT_TYPE_FT", "ft" }, + { CAIRO_FONT_TYPE_WIN32, "CAIRO_FONT_TYPE_WIN32", "win32" }, + { CAIRO_FONT_TYPE_QUARTZ, "CAIRO_FONT_TYPE_QUARTZ", "quartz" }, + { CAIRO_FONT_TYPE_USER, "CAIRO_FONT_TYPE_USER", "user" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_font_type_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_path_data_type_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_PATH_MOVE_TO, "CAIRO_PATH_MOVE_TO", "move-to" }, + { CAIRO_PATH_LINE_TO, "CAIRO_PATH_LINE_TO", "line-to" }, + { CAIRO_PATH_CURVE_TO, "CAIRO_PATH_CURVE_TO", "curve-to" }, + { CAIRO_PATH_CLOSE_PATH, "CAIRO_PATH_CLOSE_PATH", "close-path" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_path_data_type_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_device_type_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_DEVICE_TYPE_DRM, "CAIRO_DEVICE_TYPE_DRM", "drm" }, + { CAIRO_DEVICE_TYPE_GL, "CAIRO_DEVICE_TYPE_GL", "gl" }, + { CAIRO_DEVICE_TYPE_SCRIPT, "CAIRO_DEVICE_TYPE_SCRIPT", "script" }, + { CAIRO_DEVICE_TYPE_XCB, "CAIRO_DEVICE_TYPE_XCB", "xcb" }, + { CAIRO_DEVICE_TYPE_XLIB, "CAIRO_DEVICE_TYPE_XLIB", "xlib" }, + { CAIRO_DEVICE_TYPE_XML, "CAIRO_DEVICE_TYPE_XML", "xml" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_device_type_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_surface_type_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_SURFACE_TYPE_IMAGE, "CAIRO_SURFACE_TYPE_IMAGE", "image" }, + { CAIRO_SURFACE_TYPE_PDF, "CAIRO_SURFACE_TYPE_PDF", "pdf" }, + { CAIRO_SURFACE_TYPE_PS, "CAIRO_SURFACE_TYPE_PS", "ps" }, + { CAIRO_SURFACE_TYPE_XLIB, "CAIRO_SURFACE_TYPE_XLIB", "xlib" }, + { CAIRO_SURFACE_TYPE_XCB, "CAIRO_SURFACE_TYPE_XCB", "xcb" }, + { CAIRO_SURFACE_TYPE_GLITZ, "CAIRO_SURFACE_TYPE_GLITZ", "glitz" }, + { CAIRO_SURFACE_TYPE_QUARTZ, "CAIRO_SURFACE_TYPE_QUARTZ", "quartz" }, + { CAIRO_SURFACE_TYPE_WIN32, "CAIRO_SURFACE_TYPE_WIN32", "win32" }, + { CAIRO_SURFACE_TYPE_BEOS, "CAIRO_SURFACE_TYPE_BEOS", "beos" }, + { CAIRO_SURFACE_TYPE_DIRECTFB, "CAIRO_SURFACE_TYPE_DIRECTFB", "directfb" }, + { CAIRO_SURFACE_TYPE_SVG, "CAIRO_SURFACE_TYPE_SVG", "svg" }, + { CAIRO_SURFACE_TYPE_OS2, "CAIRO_SURFACE_TYPE_OS2", "os2" }, + { CAIRO_SURFACE_TYPE_WIN32_PRINTING, "CAIRO_SURFACE_TYPE_WIN32_PRINTING", "win32-printing" }, + { CAIRO_SURFACE_TYPE_QUARTZ_IMAGE, "CAIRO_SURFACE_TYPE_QUARTZ_IMAGE", "quartz-image" }, + { CAIRO_SURFACE_TYPE_SCRIPT, "CAIRO_SURFACE_TYPE_SCRIPT", "script" }, + { CAIRO_SURFACE_TYPE_QT, "CAIRO_SURFACE_TYPE_QT", "qt" }, + { CAIRO_SURFACE_TYPE_RECORDING, "CAIRO_SURFACE_TYPE_RECORDING", "recording" }, + { CAIRO_SURFACE_TYPE_VG, "CAIRO_SURFACE_TYPE_VG", "vg" }, + { CAIRO_SURFACE_TYPE_GL, "CAIRO_SURFACE_TYPE_GL", "gl" }, + { CAIRO_SURFACE_TYPE_DRM, "CAIRO_SURFACE_TYPE_DRM", "drm" }, + { CAIRO_SURFACE_TYPE_TEE, "CAIRO_SURFACE_TYPE_TEE", "tee" }, + { CAIRO_SURFACE_TYPE_XML, "CAIRO_SURFACE_TYPE_XML", "xml" }, + { CAIRO_SURFACE_TYPE_SKIA, "CAIRO_SURFACE_TYPE_SKIA", "skia" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_surface_type_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_format_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_FORMAT_INVALID, "CAIRO_FORMAT_INVALID", "invalid" }, + { CAIRO_FORMAT_ARGB32, "CAIRO_FORMAT_ARGB32", "argb32" }, + { CAIRO_FORMAT_RGB24, "CAIRO_FORMAT_RGB24", "rgb24" }, + { CAIRO_FORMAT_A8, "CAIRO_FORMAT_A8", "a8" }, + { CAIRO_FORMAT_A1, "CAIRO_FORMAT_A1", "a1" }, + { CAIRO_FORMAT_RGB16_565, "CAIRO_FORMAT_RGB16_565", "rgb16-565" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_format_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_pattern_type_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_PATTERN_TYPE_SOLID, "CAIRO_PATTERN_TYPE_SOLID", "solid" }, + { CAIRO_PATTERN_TYPE_SURFACE, "CAIRO_PATTERN_TYPE_SURFACE", "surface" }, + { CAIRO_PATTERN_TYPE_LINEAR, "CAIRO_PATTERN_TYPE_LINEAR", "linear" }, + { CAIRO_PATTERN_TYPE_RADIAL, "CAIRO_PATTERN_TYPE_RADIAL", "radial" }, + { CAIRO_PATTERN_TYPE_MESH, "CAIRO_PATTERN_TYPE_MESH", "mesh" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_pattern_type_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_extend_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_EXTEND_NONE, "CAIRO_EXTEND_NONE", "none" }, + { CAIRO_EXTEND_REPEAT, "CAIRO_EXTEND_REPEAT", "repeat" }, + { CAIRO_EXTEND_REFLECT, "CAIRO_EXTEND_REFLECT", "reflect" }, + { CAIRO_EXTEND_PAD, "CAIRO_EXTEND_PAD", "pad" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_extend_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_filter_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_FILTER_FAST, "CAIRO_FILTER_FAST", "fast" }, + { CAIRO_FILTER_GOOD, "CAIRO_FILTER_GOOD", "good" }, + { CAIRO_FILTER_BEST, "CAIRO_FILTER_BEST", "best" }, + { CAIRO_FILTER_NEAREST, "CAIRO_FILTER_NEAREST", "nearest" }, + { CAIRO_FILTER_BILINEAR, "CAIRO_FILTER_BILINEAR", "bilinear" }, + { CAIRO_FILTER_GAUSSIAN, "CAIRO_FILTER_GAUSSIAN", "gaussian" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_filter_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + +GType +cairo_gobject_region_overlap_get_type (void) +{ + static gsize type_ret = 0; + if (g_once_init_enter (&type_ret)) { + static const GEnumValue values[] = { + { CAIRO_REGION_OVERLAP_IN, "CAIRO_REGION_OVERLAP_IN", "in" }, + { CAIRO_REGION_OVERLAP_OUT, "CAIRO_REGION_OVERLAP_OUT", "out" }, + { CAIRO_REGION_OVERLAP_PART, "CAIRO_REGION_OVERLAP_PART", "part" }, + { 0, NULL, NULL } + }; + GType type = g_enum_register_static (g_intern_static_string ("cairo_region_overlap_t"), values); + + g_once_init_leave (&type_ret, type); + } + return type_ret; +} + + +/* Generated data ends here */ + diff --git a/local/recipes/libs/cairo/source/util/cairo-gobject/cairo-gobject-structs.c b/local/recipes/libs/cairo/source/util/cairo-gobject/cairo-gobject-structs.c new file mode 100644 index 0000000000..bb8e96ac8d --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-gobject/cairo-gobject-structs.c @@ -0,0 +1,100 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2010 Red Hat Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Benjamin Otte + */ + +#include "config.h" + +#include "cairo-gobject.h" + +#define CAIRO_DEFINE_BOXED(Name,underscore_name,copy_func,free_func) \ +GType \ +underscore_name ## _get_type (void) \ +{ \ + static gsize type_ret = 0; \ + if (g_once_init_enter (&type_ret)) { \ + GType type = g_boxed_type_register_static (g_intern_static_string (Name), \ + (GBoxedCopyFunc)copy_func, \ + (GBoxedFreeFunc)free_func); \ + g_once_init_leave (&type_ret, type); \ + } \ + return type_ret; \ +} + +CAIRO_DEFINE_BOXED ("CairoContext", cairo_gobject_context, + cairo_reference, cairo_destroy); +CAIRO_DEFINE_BOXED ("CairoDevice", cairo_gobject_device, + cairo_device_reference, cairo_device_destroy); +CAIRO_DEFINE_BOXED ("CairoPattern", cairo_gobject_pattern, + cairo_pattern_reference, cairo_pattern_destroy); +CAIRO_DEFINE_BOXED ("CairoSurface", cairo_gobject_surface, + cairo_surface_reference, cairo_surface_destroy); +CAIRO_DEFINE_BOXED ("CairoScaledFont", cairo_gobject_scaled_font, + cairo_scaled_font_reference, cairo_scaled_font_destroy); +CAIRO_DEFINE_BOXED ("CairoFontFace", cairo_gobject_font_face, + cairo_font_face_reference, cairo_font_face_destroy); +CAIRO_DEFINE_BOXED ("CairoFontOptions", cairo_gobject_font_options, + cairo_font_options_copy, cairo_font_options_destroy); +CAIRO_DEFINE_BOXED ("CairoRegion", cairo_gobject_region, + cairo_region_reference, cairo_region_destroy); + +#if GLIB_CHECK_VERSION(2, 68, 0) +#define COPY_FUNC(name) \ +static gpointer \ +cairo_gobject_cairo_ ## name ## _copy (gpointer src) { \ + return g_memdup2 (src, sizeof (cairo_ ## name ## _t)); \ +} +#else +#define COPY_FUNC(name) \ +static gpointer \ +cairo_gobject_cairo_ ## name ## _copy (gpointer src) { \ + return g_memdup (src, sizeof (cairo_ ## name ## _t)); \ +} +#endif + +COPY_FUNC (matrix) +CAIRO_DEFINE_BOXED ("CairoMatrix", cairo_gobject_matrix, + cairo_gobject_cairo_matrix_copy, g_free); +COPY_FUNC (rectangle) +CAIRO_DEFINE_BOXED ("CairoRectangle", cairo_gobject_rectangle, + cairo_gobject_cairo_rectangle_copy, g_free); +COPY_FUNC (rectangle_int) +CAIRO_DEFINE_BOXED ("CairoRectangleInt", cairo_gobject_rectangle_int, + cairo_gobject_cairo_rectangle_int_copy, g_free); +COPY_FUNC (glyph) +CAIRO_DEFINE_BOXED ("CairoGlyph", cairo_gobject_glyph, + cairo_gobject_cairo_glyph_copy, g_free); +COPY_FUNC (text_cluster) +CAIRO_DEFINE_BOXED ("CairoTextCluster", cairo_gobject_text_cluster, + cairo_gobject_cairo_text_cluster_copy, g_free); diff --git a/local/recipes/libs/cairo/source/util/cairo-gobject/cairo-gobject.h b/local/recipes/libs/cairo/source/util/cairo-gobject/cairo-gobject.h new file mode 100644 index 0000000000..28aa51c8b9 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-gobject/cairo-gobject.h @@ -0,0 +1,200 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2010 Red Hat Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Benjamin Otte + */ + +#ifndef CAIRO_GOBJECT_H +#define CAIRO_GOBJECT_H + +#include + +#if CAIRO_HAS_GOBJECT_FUNCTIONS + +#include + +CAIRO_BEGIN_DECLS + +/* structs */ + +#define CAIRO_GOBJECT_TYPE_CONTEXT cairo_gobject_context_get_type () +cairo_public GType +cairo_gobject_context_get_type (void); + +#define CAIRO_GOBJECT_TYPE_DEVICE cairo_gobject_device_get_type () +cairo_public GType +cairo_gobject_device_get_type (void); + +#define CAIRO_GOBJECT_TYPE_MATRIX cairo_gobject_matrix_get_type () +cairo_public GType +cairo_gobject_matrix_get_type (void); + +#define CAIRO_GOBJECT_TYPE_PATTERN cairo_gobject_pattern_get_type () +cairo_public GType +cairo_gobject_pattern_get_type (void); + +#define CAIRO_GOBJECT_TYPE_SURFACE cairo_gobject_surface_get_type () +cairo_public GType +cairo_gobject_surface_get_type (void); + +#define CAIRO_GOBJECT_TYPE_RECTANGLE cairo_gobject_rectangle_get_type () +cairo_public GType +cairo_gobject_rectangle_get_type (void); + +#define CAIRO_GOBJECT_TYPE_SCALED_FONT cairo_gobject_scaled_font_get_type () +cairo_public GType +cairo_gobject_scaled_font_get_type (void); + +#define CAIRO_GOBJECT_TYPE_FONT_FACE cairo_gobject_font_face_get_type () +cairo_public GType +cairo_gobject_font_face_get_type (void); + +#define CAIRO_GOBJECT_TYPE_FONT_OPTIONS cairo_gobject_font_options_get_type () +cairo_public GType +cairo_gobject_font_options_get_type (void); + +#define CAIRO_GOBJECT_TYPE_RECTANGLE_INT cairo_gobject_rectangle_int_get_type () +cairo_public GType +cairo_gobject_rectangle_int_get_type (void); + +#define CAIRO_GOBJECT_TYPE_REGION cairo_gobject_region_get_type () +cairo_public GType +cairo_gobject_region_get_type (void); + +#define CAIRO_GOBJECT_TYPE_GLYPH cairo_gobject_glyph_get_type () +cairo_public GType +cairo_gobject_glyph_get_type (void); + +#define CAIRO_GOBJECT_TEXT_CLUSTER_GLYPH cairo_gobject_text_cluster_get_type () +cairo_public GType +cairo_gobject_text_cluster_get_type (void); + +/* enums */ + +#define CAIRO_GOBJECT_TYPE_STATUS cairo_gobject_status_get_type () +cairo_public GType +cairo_gobject_status_get_type (void); + +#define CAIRO_GOBJECT_TYPE_CONTENT cairo_gobject_content_get_type () +cairo_public GType +cairo_gobject_content_get_type (void); + +#define CAIRO_GOBJECT_TYPE_OPERATOR cairo_gobject_operator_get_type () +cairo_public GType +cairo_gobject_operator_get_type (void); + +#define CAIRO_GOBJECT_TYPE_ANTIALIAS cairo_gobject_antialias_get_type () +cairo_public GType +cairo_gobject_antialias_get_type (void); + +#define CAIRO_GOBJECT_TYPE_FILL_RULE cairo_gobject_fill_rule_get_type () +cairo_public GType +cairo_gobject_fill_rule_get_type (void); + +#define CAIRO_GOBJECT_TYPE_LINE_CAP cairo_gobject_line_cap_get_type () +cairo_public GType +cairo_gobject_line_cap_get_type (void); + +#define CAIRO_GOBJECT_TYPE_LINE_JOIN cairo_gobject_line_join_get_type () +cairo_public GType +cairo_gobject_line_join_get_type (void); + +#define CAIRO_GOBJECT_TYPE_TEXT_CLUSTER_FLAGS cairo_gobject_text_cluster_flags_get_type () +cairo_public GType +cairo_gobject_text_cluster_flags_get_type (void); + +#define CAIRO_GOBJECT_TYPE_FONT_SLANT cairo_gobject_font_slant_get_type () +cairo_public GType +cairo_gobject_font_slant_get_type (void); + +#define CAIRO_GOBJECT_TYPE_FONT_WEIGHT cairo_gobject_font_weight_get_type () +cairo_public GType +cairo_gobject_font_weight_get_type (void); + +#define CAIRO_GOBJECT_TYPE_SUBPIXEL_ORDER cairo_gobject_subpixel_order_get_type () +cairo_public GType +cairo_gobject_subpixel_order_get_type (void); + +#define CAIRO_GOBJECT_TYPE_HINT_STYLE cairo_gobject_hint_style_get_type () +cairo_public GType +cairo_gobject_hint_style_get_type (void); + +/* historical accident */ +#define CAIRO_GOBJECT_TYPE_HNT_METRICS cairo_gobject_hint_metrics_get_type () +#define CAIRO_GOBJECT_TYPE_HINT_METRICS cairo_gobject_hint_metrics_get_type () +cairo_public GType +cairo_gobject_hint_metrics_get_type (void); + +#define CAIRO_GOBJECT_TYPE_FONT_TYPE cairo_gobject_font_type_get_type () +cairo_public GType +cairo_gobject_font_type_get_type (void); + +#define CAIRO_GOBJECT_TYPE_PATH_DATA_TYPE cairo_gobject_path_data_type_get_type () +cairo_public GType +cairo_gobject_path_data_type_get_type (void); + +#define CAIRO_GOBJECT_TYPE_DEVICE_TYPE cairo_gobject_device_type_get_type () +cairo_public GType +cairo_gobject_device_type_get_type (void); + +#define CAIRO_GOBJECT_TYPE_SURFACE_TYPE cairo_gobject_surface_type_get_type () +cairo_public GType +cairo_gobject_surface_type_get_type (void); + +#define CAIRO_GOBJECT_TYPE_FORMAT cairo_gobject_format_get_type () +cairo_public GType +cairo_gobject_format_get_type (void); + +#define CAIRO_GOBJECT_TYPE_PATTERN_TYPE cairo_gobject_pattern_type_get_type () +cairo_public GType +cairo_gobject_pattern_type_get_type (void); + +#define CAIRO_GOBJECT_TYPE_EXTEND cairo_gobject_extend_get_type () +cairo_public GType +cairo_gobject_extend_get_type (void); + +#define CAIRO_GOBJECT_TYPE_FILTER cairo_gobject_filter_get_type () +cairo_public GType +cairo_gobject_filter_get_type (void); + +#define CAIRO_GOBJECT_TYPE_REGION_OVERLAP cairo_gobject_region_overlap_get_type () +cairo_public GType +cairo_gobject_region_overlap_get_type (void); + +CAIRO_END_DECLS + +#else /* CAIRO_HAS_GOBJECT_FUNCTIONS */ +# error Cairo was not compiled with support for GObject +#endif /* CAIRO_HAS_GOBJECT_FUNCTIONS */ + +#endif /* CAIRO_GOBJECT_H */ diff --git a/local/recipes/libs/cairo/source/util/cairo-gobject/meson.build b/local/recipes/libs/cairo/source/util/cairo-gobject/meson.build new file mode 100644 index 0000000000..660088771e --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-gobject/meson.build @@ -0,0 +1,33 @@ +cairo_gobject_sources = [ + 'cairo-gobject-enums.c', + 'cairo-gobject-structs.c', +] + +cairo_gobject_headers = [ + 'cairo-gobject.h', +] + +libcairogobject = library('cairo-gobject', cairo_gobject_sources, + include_directories: [incbase], + dependencies: [glib_dep, gobject_dep, libcairo_dep], + soversion: cairo_version_sonum, + version: cairo_libversion, + gnu_symbol_visibility: 'hidden', + c_args: ['-DCAIRO_COMPILATION'], + link_args: extra_link_args, + install: true, +) + +libcairogobject_dep = declare_dependency(link_with: libcairogobject, + include_directories: include_directories('.'), + dependencies: libcairo_dep) + +pkgmod.generate(libcairogobject, + libraries: [libcairo, glib_dep, gobject_dep], + description: 'cairo-gobject for cairo graphics library', + subdirs: [meson.project_name()], +) + +meson.override_dependency('cairo-gobject', libcairogobject_dep) + +install_headers(cairo_gobject_headers, subdir: 'cairo') diff --git a/local/recipes/libs/cairo/source/util/cairo-missing/cairo-missing.h b/local/recipes/libs/cairo/source/util/cairo-missing/cairo-missing.h new file mode 100644 index 0000000000..5d947163f9 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-missing/cairo-missing.h @@ -0,0 +1,58 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2011 Andrea Canciani + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of the + * copyright holders not be used in advertising or publicity + * pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied + * warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Authors: Carl Worth + * Andrea Canciani + */ + +#ifndef CAIRO_MISSING_H +#define CAIRO_MISSING_H + +#include "cairo-compiler-private.h" + +#include +#include +#include + +#ifdef _WIN32 +#include + +#if !defined(_SSIZE_T_DEFINED) && !defined(_SSIZE_T_) +typedef SSIZE_T ssize_t; +#endif +#endif + +#ifndef HAVE_GETLINE +cairo_private ssize_t +getline (char **lineptr, size_t *n, FILE *stream); +#endif + +#ifndef HAVE_STRNDUP +cairo_private char * +strndup (const char *s, size_t n); +#endif + +#endif diff --git a/local/recipes/libs/cairo/source/util/cairo-missing/getline.c b/local/recipes/libs/cairo/source/util/cairo-missing/getline.c new file mode 100644 index 0000000000..8585cfdc2d --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-missing/getline.c @@ -0,0 +1,90 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2011 Andrea Canciani + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of the + * copyright holders not be used in advertising or publicity + * pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied + * warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Authors: Carl Worth + * Andrea Canciani + */ + +#include "cairo-missing.h" + +#ifndef HAVE_GETLINE +#include "cairo-malloc-private.h" + +#define GETLINE_MIN_BUFFER_SIZE 128 +ssize_t +getline (char **lineptr, + size_t *n, + FILE *stream) +{ + char *line, *tmpline; + size_t len, offset; + ssize_t ret; + + offset = 0; + len = *n; + line = *lineptr; + if (len < GETLINE_MIN_BUFFER_SIZE) { + len = GETLINE_MIN_BUFFER_SIZE; + line = NULL; + } + + if (line == NULL) { + line = (char *) _cairo_malloc (len); + if (unlikely (line == NULL)) + return -1; + } + + while (1) { + if (offset + 1 == len) { + tmpline = (char *) _cairo_realloc_ab (line, len, 2); + if (unlikely (tmpline == NULL)) { + if (line != *lineptr) + free (line); + return -1; + } + len *= 2; + line = tmpline; + } + + ret = getc (stream); + if (ret == -1) + break; + + line[offset++] = ret; + if (ret == '\n') { + ret = offset; + break; + } + } + + line[offset++] = '\0'; + *lineptr = line; + *n = len; + + return ret; +} +#undef GETLINE_BUFFER_SIZE +#endif diff --git a/local/recipes/libs/cairo/source/util/cairo-missing/meson.build b/local/recipes/libs/cairo/source/util/cairo-missing/meson.build new file mode 100644 index 0000000000..3280b03fe2 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-missing/meson.build @@ -0,0 +1,15 @@ +cairo_missing_sources = [ + 'strndup.c', + 'getline.c', +] + +libcairomissing = static_library('cairo-missing', cairo_missing_sources, + include_directories: [incbase, incsrc], + install: false, + build_by_default: false, +) + +libcairomissing_dep = declare_dependency( + link_with: libcairomissing, + include_directories: include_directories('.'), +) diff --git a/local/recipes/libs/cairo/source/util/cairo-missing/strndup.c b/local/recipes/libs/cairo/source/util/cairo-missing/strndup.c new file mode 100644 index 0000000000..049802b769 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-missing/strndup.c @@ -0,0 +1,61 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006 Red Hat, Inc. + * Copyright © 2011 Andrea Canciani + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of the + * copyright holders not be used in advertising or publicity + * pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied + * warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * + * Authors: Carl Worth + * Andrea Canciani + */ + +#include "cairo-missing.h" + +#ifndef HAVE_STRNDUP +#include "cairo-malloc-private.h" + +char * +strndup (const char *s, + size_t n) +{ + const char *end; + size_t len; + char *sdup; + + if (s == NULL) + return NULL; + + end = memchr (s, 0, n); + if (end) + len = end - s; + else + len = n; + + sdup = (char *) _cairo_malloc (len + 1); + if (sdup != NULL) { + memcpy (sdup, s, len); + sdup[len] = '\0'; + } + + return sdup; +} +#endif diff --git a/local/recipes/libs/cairo/source/util/cairo-script/.gitignore b/local/recipes/libs/cairo/source/util/cairo-script/.gitignore new file mode 100644 index 0000000000..8ecaee3e57 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/.gitignore @@ -0,0 +1,3 @@ +csi-replay +csi-exec +csi-trace diff --git a/local/recipes/libs/cairo/source/util/cairo-script/COPYING b/local/recipes/libs/cairo/source/util/cairo-script/COPYING new file mode 100644 index 0000000000..66ad7840fb --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/COPYING @@ -0,0 +1,17 @@ +Cairo is free software. + +Every source file in the implementation of cairo is available to be +redistributed and/or modified under the terms of either the GNU Lesser +General Public License (LGPL) version 2.1 or the Mozilla Public +License (MPL) version 1.1. Some files are available under more +liberal terms, but we believe that in all cases, each file may be used +under either the LGPL or the MPL. + +See the following files in this directory for the precise terms and +conditions of either license: + + COPYING-LGPL-2.1 + COPYING-MPL-1.1 + +Please see each file in the implementation for copyright and licensing +information, (in the opening comment of each file). diff --git a/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-file.c b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-file.c new file mode 100644 index 0000000000..c45cc5086d --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-file.c @@ -0,0 +1,1110 @@ +/* + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + */ + +#include "config.h" + +#include "cairo-script-private.h" + +#include +#include /* INT_MAX */ +#include +#include + +#if HAVE_LZO +#include +#endif + +#define CHUNK_SIZE 32768 + +#define OWN_STREAM 0x1 + +csi_status_t +csi_file_new (csi_t *ctx, + csi_object_t *obj, + const char *path, const char *mode) +{ + csi_file_t *file; + + file = _csi_slab_alloc (ctx, sizeof (csi_file_t)); + if (file == NULL) + return _csi_error (CAIRO_STATUS_NO_MEMORY); + + file->base.type = CSI_OBJECT_TYPE_FILE; + file->base.ref = 1; + + file->data = NULL; + file->type = STDIO; + file->flags = OWN_STREAM; + file->src = fopen (path, mode); + if (file->src == NULL) { + _csi_slab_free (ctx, file, sizeof (csi_file_t)); + return _csi_error (CAIRO_STATUS_FILE_NOT_FOUND); + } + + file->data = _csi_alloc (ctx, CHUNK_SIZE); + if (file->data == NULL) { + _csi_slab_free (ctx, file, sizeof (csi_file_t)); + return _csi_error (CAIRO_STATUS_NO_MEMORY); + } + file->bp = file->data; + file->rem = 0; + + obj->type = CSI_OBJECT_TYPE_FILE; + obj->datum.file = file; + return CAIRO_STATUS_SUCCESS; +} + +csi_status_t +csi_file_new_for_stream (csi_t *ctx, + csi_object_t *obj, + FILE *stream) +{ + csi_file_t *file; + + file = _csi_slab_alloc (ctx, sizeof (csi_file_t)); + if (file == NULL) + return _csi_error (CAIRO_STATUS_NO_MEMORY); + + file->base.type = CSI_OBJECT_TYPE_FILE; + file->base.ref = 1; + + file->data = NULL; + file->type = STDIO; + file->flags = 0; + file->src = stream; + if (file->src == NULL) { + _csi_slab_free (ctx, file, sizeof (csi_file_t)); + return _csi_error (CAIRO_STATUS_FILE_NOT_FOUND); + } + + file->data = _csi_alloc (ctx, CHUNK_SIZE); + if (file->data == NULL) { + _csi_slab_free (ctx, file, sizeof (csi_file_t)); + return _csi_error (CAIRO_STATUS_NO_MEMORY); + } + file->bp = file->data; + file->rem = 0; + + obj->type = CSI_OBJECT_TYPE_FILE; + obj->datum.file = file; + return CAIRO_STATUS_SUCCESS; +} + +csi_status_t +csi_file_new_for_bytes (csi_t *ctx, + csi_object_t *obj, + const char *bytes, + unsigned int length) +{ + csi_file_t *file; + + file = _csi_slab_alloc (ctx, sizeof (csi_file_t)); + if (file == NULL) + return _csi_error (CAIRO_STATUS_NO_MEMORY); + + file->base.type = CSI_OBJECT_TYPE_FILE; + file->base.ref = 1; + + file->type = BYTES; + file->src = (uint8_t *) bytes; + file->data = (uint8_t *) bytes; + file->bp = (uint8_t *) bytes; + file->rem = length; + + obj->type = CSI_OBJECT_TYPE_FILE; + obj->datum.file = file; + return CAIRO_STATUS_SUCCESS; +} + +csi_status_t +csi_file_new_from_string (csi_t *ctx, + csi_object_t *obj, + csi_string_t *src) +{ + csi_file_t *file; + + file = _csi_slab_alloc (ctx, sizeof (csi_file_t)); + if (_csi_unlikely (file == NULL)) + return _csi_error (CAIRO_STATUS_NO_MEMORY); + + file->base.type = CSI_OBJECT_TYPE_FILE; + file->base.ref = 1; + + if (src->deflate) { + uLongf len = src->deflate; + csi_object_t tmp_obj; + csi_string_t *tmp_str; + csi_status_t status; + + status = csi_string_new (ctx, &tmp_obj, NULL, src->deflate); + if (_csi_unlikely (status)) + return status; + + tmp_str = tmp_obj.datum.string; + switch (src->method) { + case NONE: + default: + status = _csi_error (CAIRO_STATUS_NO_MEMORY); + break; + + case ZLIB: +#if HAVE_ZLIB + if (uncompress ((Bytef *) tmp_str->string, &len, + (Bytef *) src->string, src->len) != Z_OK) +#endif + status = _csi_error (CAIRO_STATUS_NO_MEMORY); + break; + case LZO: +#if HAVE_LZO + if (lzo2a_decompress ((lzo_bytep) src->string, src->len, + (lzo_bytep) tmp_str->string, &len, + NULL)) +#endif + status = _csi_error (CAIRO_STATUS_NO_MEMORY); + break; + } + if (_csi_unlikely (status)) { + csi_string_free (ctx, tmp_str); + _csi_slab_free (ctx, file, sizeof (csi_file_t)); + return status; + } + + file->src = tmp_str; + file->data = tmp_str->string; + file->rem = tmp_str->len; + } else { + file->src = src; src->base.ref++; + file->data = src->string; + file->rem = src->len; + } + file->type = BYTES; + file->bp = file->data; + + obj->type = CSI_OBJECT_TYPE_FILE; + obj->datum.file = file; + return CAIRO_STATUS_SUCCESS; +} + +static csi_status_t +_csi_file_new_filter (csi_t *ctx, + csi_object_t *obj, + csi_object_t *src, + const csi_filter_funcs_t *funcs, + void *data) +{ + csi_file_t *file; + csi_object_t src_file; + csi_status_t status; + + file = _csi_slab_alloc (ctx, sizeof (csi_file_t)); + if (file == NULL) + return _csi_error (CAIRO_STATUS_NO_MEMORY); + + obj->type = CSI_OBJECT_TYPE_FILE; + obj->datum.file = file; + + file->base.type = CSI_OBJECT_TYPE_FILE; + file->base.ref = 1; + + file->type = FILTER; + file->data = data; + file->filter = funcs; + status = csi_object_as_file (ctx, src, &src_file); + if (status) { + csi_object_free (ctx, obj); + return status; + } + file->src = src_file.datum.file; + + return CAIRO_STATUS_SUCCESS; +} + + +#if 0 +csi_status_t +csi_file_new_from_stream (csi_t *ctx, + FILE *file, + csi_object_t **out) +{ + csi_file_t *obj; + + obj = (csi_file_t *) _csi_object_new (ctx, CSI_OBJECT_TYPE_FILE); + if (obj == NULL) + return _csi_error (CAIRO_STATUS_NO_MEMORY); + + obj->type = STDIO; + obj->src = file; + obj->data = _csi_alloc (ctx, CHUNK_SIZE); + if (obj->data == NULL) { + csi_object_free (&obj->base); + return _csi_error (CAIRO_STATUS_UNDEFINED_FILENAME_ERROR); + } + obj->bp = obj->data; + obj->rem = 0; + + *out = &obj->base; + return CAIRO_STATUS_SUCCESS; +} + +static csi_object_t * +_csi_file_new_from_procedure (csi_t *ctx, csi_object_t *src) +{ + csi_file_t *obj; + + obj = (csi_file_t *) _csi_object_new (ctx, CSI_OBJECT_TYPE_FILE); + if (obj == NULL) + return NULL; + + obj->type = PROCEDURE; + obj->src = csi_object_reference (src); + obj->data = NULL; + + return &obj->base; +} +#endif + +typedef struct _ascii85_decode_data { + uint8_t buf[CHUNK_SIZE]; + uint8_t *bp; + short bytes_available; + short eod; +} _ascii85_decode_data_t; + +static int +_getc_skip_whitespace (csi_file_t *src) +{ + int c; + + do switch ((c = csi_file_getc (src))) { + case 0x0: + case 0x9: + case 0xa: + case 0xc: + case 0xd: + case 0x20: + continue; + + default: + return c; + } while (TRUE); + + return c; +} + +static void +_ascii85_decode (csi_file_t *file) +{ + _ascii85_decode_data_t *data = file->data; + unsigned int n; + + if (data->eod) + return; + + data->bp = data->buf; + + n = 0; + do { + unsigned int v = _getc_skip_whitespace (file->src); + if (v == 'z') { + data->buf[n+0] = 0; + data->buf[n+1] = 0; + data->buf[n+2] = 0; + data->buf[n+3] = 0; + } else if (v == '~') { + _getc_skip_whitespace (file->src); /* == '>' || IO_ERROR */ + data->eod = TRUE; + break; + } else if (v < '!' || v > 'u') { + /* IO_ERROR */ + data->eod = TRUE; + break; + } else { + unsigned int i; + + v -= '!'; + for (i = 1; i < 5; i++) { + int c = _getc_skip_whitespace (file->src); + if (c == '~') { /* short tuple */ + _getc_skip_whitespace (file->src); /* == '>' || IO_ERROR */ + data->eod = TRUE; + switch (i) { + case 0: + case 1: + /* IO_ERROR */ + break; + case 2: + v = v * (85*85*85) + 85*85*85 -1; + goto odd1; + case 3: + v = v * (85*85) + 85*85 -1; + goto odd2; + case 4: + v = v * 85 + 84; + data->buf[n+2] = v >> 8 & 0xff; +odd2: + data->buf[n+1] = v >> 16 & 0xff; +odd1: + data->buf[n+0] = v >> 24 & 0xff; + data->bytes_available = n + i - 1; + return; + } + break; + } + v = 85*v + c-'!'; + } + + data->buf[n+0] = v >> 24 & 0xff; + data->buf[n+1] = v >> 16 & 0xff; + data->buf[n+2] = v >> 8 & 0xff; + data->buf[n+3] = v >> 0 & 0xff; + } + n += 4; + } while (n < sizeof (data->buf) && data->eod == FALSE); + + data->bytes_available = n; +} + +static int +_ascii85_decode_getc (csi_file_t *file) +{ + _ascii85_decode_data_t *data = file->data; + + if (data->bytes_available == 0) { + _ascii85_decode (file); + + if (data->bytes_available == 0) + return EOF; + } + + data->bytes_available--; + return *data->bp++; +} + +static void +_ascii85_decode_putc (csi_file_t *file, int c) +{ + _ascii85_decode_data_t *data = file->data; + data->bytes_available++; + data->bp--; +} + +static int +_ascii85_decode_read (csi_file_t *file, uint8_t *buf, int len) +{ + _ascii85_decode_data_t *data = file->data; + + if (data->bytes_available == 0) { + _ascii85_decode (file); + + if (data->bytes_available == 0) + return 0; + } + + if (len > data->bytes_available) + len = data->bytes_available; + memcpy (buf, data->bp, len); + data->bp += len; + data->bytes_available -= len; + return len; +} + +csi_status_t +csi_file_new_ascii85_decode (csi_t *ctx, + csi_object_t *obj, + csi_dictionary_t *dict, + csi_object_t *src) +{ + static const csi_filter_funcs_t funcs = { + _ascii85_decode_getc, + _ascii85_decode_putc, + _ascii85_decode_read, + _csi_free, + }; + _ascii85_decode_data_t *data; + + data = _csi_alloc0 (ctx, sizeof (_ascii85_decode_data_t)); + if (data == NULL) + return _csi_error (CAIRO_STATUS_NO_MEMORY); + + return _csi_file_new_filter (ctx, obj, src, &funcs, data); +} + +#if HAVE_ZLIB +#include + +typedef struct _deflate_decode_data { + z_stream zlib_stream; + + uint8_t in[CHUNK_SIZE]; + uint8_t out[CHUNK_SIZE]; + + int bytes_available; + uint8_t *bp; +} _deflate_decode_data_t; + +static void +_deflate_decode (csi_file_t *file) +{ + _deflate_decode_data_t *data = file->data; + uint8_t *bp; + int len; + + data->zlib_stream.next_out = data->out; + data->zlib_stream.avail_out = sizeof (data->out); + + bp = data->in; + len = sizeof (data->in); + if (data->zlib_stream.avail_in) { + memmove (data->in, + data->zlib_stream.next_in, + data->zlib_stream.avail_in); + len -= data->zlib_stream.avail_in; + bp += data->zlib_stream.avail_in; + } + + len = csi_file_read (file->src, bp, len); + + data->zlib_stream.next_in = data->in; + data->zlib_stream.avail_in += len; + + inflate (&data->zlib_stream, len == 0 ? Z_FINISH : Z_NO_FLUSH); + + data->bytes_available = data->zlib_stream.next_out - data->out; + data->bp = data->out; +} + +static int +_deflate_decode_getc (csi_file_t *file) +{ + _deflate_decode_data_t *data = file->data; + + if (data->bytes_available == 0) { + _deflate_decode (file); + + if (data->bytes_available == 0) + return EOF; + } + + data->bytes_available--; + return *data->bp++; +} + +static void +_deflate_decode_putc (csi_file_t *file, int c) +{ + _deflate_decode_data_t *data = file->data; + data->bytes_available++; + data->bp--; +} + +static int +_deflate_decode_read (csi_file_t *file, uint8_t *buf, int len) +{ + _deflate_decode_data_t *data = file->data; + + if (data->bytes_available == 0) { + _deflate_decode (file); + + if (data->bytes_available == 0) + return 0; + } + + if (len > (int) data->bytes_available) + len = data->bytes_available; + memcpy (buf, data->bp, len); + data->bp += len; + data->bytes_available -= len; + return len; +} + +static void +_deflate_destroy (csi_t *ctx, void *closure) +{ + _deflate_decode_data_t *data; + + data = closure; + + inflateEnd (&data->zlib_stream); + + _csi_free (ctx, data); +} + +csi_status_t +csi_file_new_deflate_decode (csi_t *ctx, + csi_object_t *obj, + csi_dictionary_t *dict, + csi_object_t *src) +{ + static const csi_filter_funcs_t funcs = { + _deflate_decode_getc, + _deflate_decode_putc, + _deflate_decode_read, + _deflate_destroy, + }; + _deflate_decode_data_t *data; + + data = _csi_alloc (ctx, sizeof (_deflate_decode_data_t)); + if (data == NULL) + return _csi_error (CAIRO_STATUS_NO_MEMORY); + + data->zlib_stream.zalloc = Z_NULL; + data->zlib_stream.zfree = Z_NULL; + data->zlib_stream.opaque = Z_NULL; + data->zlib_stream.next_in = data->in; + data->zlib_stream.avail_in = 0; + data->zlib_stream.next_out = data->out; + data->zlib_stream.avail_out = sizeof (data->out); + data->bytes_available = 0; + + if (inflateInit (&data->zlib_stream) != Z_OK) { + _csi_free (ctx, data); + return _csi_error (CAIRO_STATUS_NO_MEMORY); + } + + return _csi_file_new_filter (ctx, obj, src, &funcs, data); +} +#endif + +#if 0 +static int +hex_value (int c) +{ + if (c < '0') + return EOF; + if (c <= '9') + return c - '0'; + c |= 32; + if (c < 'a') + return EOF; + if (c <= 'f') + return c - 'a' + 0xa; + return EOF; +} + +/* Adobe Type 1 Font Format book: p63 */ +typedef struct _decrypt_data { + uint8_t putback[32]; + uint8_t nputback; + csi_bool_t is_hexadecimal; + unsigned short R; + int eod; +} _decrypt_data_t; + +static uint8_t +_decrypt (unsigned short *R, uint8_t cypher) +{ +#define c1 52845 +#define c2 22719 + uint8_t plain; + + plain = cypher ^ (*R >> 8); + *R = (cypher + *R) * c1 + c2; + return plain; +#undef c1 +#undef c2 +} + +int +csi_decrypt (uint8_t *in, int length, + unsigned short salt, int binary, + uint8_t *out) +{ + const uint8_t * const end = in + length; + uint8_t *base = out; + + while (in < end) { + int c; + + if (! binary) { + int c_hi = -1, c_lo = 0; + + while (in < end && (c_hi = *in++)) { + switch (c_hi) { + case 0x0: + case 0x9: + case 0xa: + case 0xc: + case 0xd: + case 0x20: + continue; + + default: + break; + } + } + if (c_hi < 0) + break; + + while (in < end && (c_lo = *in++)) { + switch (c_lo) { + case 0x0: + case 0x9: + case 0xa: + case 0xc: + case 0xd: + case 0x20: + continue; + + default: + break; + } + } + + c = (hex_value (c_hi) << 4) | hex_value (c_lo); + } else + c = *in++; + + *out++ = _decrypt (&salt, c); + } + + return out - base; +} + +static uint8_t +_encrypt (unsigned short *R, uint8_t plain) +{ +#define c1 52845 +#define c2 22719 + uint8_t cypher; + + cypher = plain ^ (*R >> 8); + *R = (cypher + *R) * c1 + c2; + return cypher; +#undef c1 +#undef c2 +} + +int +csi_encrypt (uint8_t *in, int length, + unsigned short salt, int discard, int binary, + uint8_t *out) +{ + const char hex[]="0123456789abcdef"; + const uint8_t * const end = in + length; + uint8_t *base = out; + int col = 0; + + while (discard--) { + if (! binary) { + int c = _encrypt (&salt, ' '); + *out++ = hex[(c >> 4) & 0xf]; + *out++ = hex[(c >> 0) & 0xf]; + } else + *out++ = _encrypt (&salt, 0); + } + + while (in < end) { + int c; + + c = _encrypt (&salt, *in++); + if (! binary) { + if (col == 78) { + *out++ = '\n'; + col = 0; + } + *out++ = hex[(c >> 4) & 0xf]; + *out++ = hex[(c >> 0) & 0xf]; + col += 2; + } else + *out++ = c; + } + + return out - base; +} + +static int +_decrypt_getc (csi_file_t *file) +{ + _decrypt_data_t *data = file->data; + int c; + + if (data->nputback) + return data->putback[--data->nputback]; + + if (data->is_hexadecimal) { + int c_hi, c_lo; + + c_hi = _getc_skip_whitespace (file->src); + c_lo = _getc_skip_whitespace (file->src); + c = (hex_value (c_hi) << 4) | hex_value (c_lo); + } else + c = csi_file_getc (file->src); + + if (c == EOF) + return EOF; + + return _decrypt (&data->R, c); +} + +static void +_decrypt_putc (csi_file_t *file, int c) +{ + _decrypt_data_t *data; + + data = file->data; + + data->putback[data->nputback++] = c; +} + +csi_object_t * +csi_file_new_decrypt (csi_t *ctx, csi_object_t *src, int salt, int discard) +{ + csi_object_t *obj; + _decrypt_data_t *data; + int n; + + data = _csi_alloc0 (ctx, sizeof (_decrypt_data_t)); + if (data == NULL) + return NULL; + + data->R = salt; + + obj = _csi_file_new_filter (ctx, src, + _decrypt_getc, + _decrypt_putc, + NULL, + _csi_free, + data); + if (obj == NULL) + return NULL; + + /* XXX determine encoding, eexec only? */ + data->is_hexadecimal = salt != 4330; + for (n = 0; n < discard; n++) { + int c; + c = csi_file_getc (obj); + if (c == EOF) { + return obj; + } + } + return obj; +} +#endif + +csi_status_t +_csi_file_execute (csi_t *ctx, csi_file_t *obj) +{ + return _csi_scan_file (ctx, obj); +} + +int +csi_file_getc (csi_file_t *file) +{ + int c; + + if (_csi_unlikely (file->src == NULL)) + return EOF; + + switch (file->type) { + case STDIO: + if (_csi_likely (file->rem)) { + c = *file->bp++; + file->rem--; + } else { + file->rem = fread (file->bp = file->data, 1, CHUNK_SIZE, file->src); + /* fall through */ + case BYTES: + if (_csi_likely (file->rem)) { + c = *file->bp++; + file->rem--; + } else + c = EOF; + } + break; + + case PROCEDURE: +#if 0 + if (file->data == NULL) { + csi_status_t status; + csi_object_t *string; + +RERUN_PROCEDURE: + status = csi_object_execute (file->src); + if (status) + return EOF; + + string = csi_pop_operand (file->base.ctx); + if (string == NULL) + return EOF; + file->data = csi_object_as_file (file->base.ctx, string); + csi_object_free (string); + if (file->data == NULL) + return EOF; + } + c = csi_file_getc (file->data); + if (c == EOF) { + csi_object_free (file->data); + file->data = NULL; + goto RERUN_PROCEDURE; + } +#else + c = EOF; +#endif + break; + + case FILTER: + c = file->filter->filter_getc (file); + break; + + default: + c = EOF; + break; + } + + return c; +} + +int +csi_file_read (csi_file_t *file, void *buf, int len) +{ + int ret; + + if (file->src == NULL) + return 0; + + switch (file->type) { + case STDIO: + if (file->rem > 0) { + ret = len; + if (file->rem < ret) + ret = file->rem; + memcpy (buf, file->bp, ret); + file->bp += ret; + file->rem -= ret; + } else + ret = fread (buf, 1, len, file->src); + break; + + case BYTES: + if (file->rem > 0) { + ret = len; + if (file->rem < ret) + ret = file->rem; + memcpy (buf, file->bp, ret); + file->bp += ret; + file->rem -= ret; + } else + ret = 0; + break; + + case PROCEDURE: +#if 0 + if (file->data == NULL) { + csi_status_t status; + csi_object_t *string; + +RERUN_PROCEDURE: + status = csi_object_execute (file->src); + if (status) + return 0; + + string = csi_pop_operand (file->base.ctx); + if (string == NULL) + return 0; + file->data = csi_object_as_file (file->base.ctx, string); + csi_object_free (string); + if (file->data == NULL) + return 0; + } + ret = csi_file_read (file->data, buf, len); + if (ret == 0) { + csi_object_free (file->data); + file->data = NULL; + goto RERUN_PROCEDURE; + } +#else + ret = 0; +#endif + break; + + case FILTER: + ret = file->filter->filter_read (file, buf, len); + break; + + default: + ret = 0; + break; + } + + return ret; +} + +void +csi_file_putc (csi_file_t *file, int c) +{ + if (file->src == NULL) + return; + + switch ((int) file->type) { + case STDIO: + case BYTES: + file->bp--; + file->rem++; + break; + case FILTER: + file->filter->filter_putc (file, c); + break; + default: + break; + } +} + +void +csi_file_flush (csi_file_t *file) +{ + if (file->src == NULL) + return; + + switch ((int) file->type) { + case FILTER: /* need to eat EOD */ + while (csi_file_getc (file) != EOF) + ; + break; + default: + break; + } +} + +void +csi_file_close (csi_t *ctx, csi_file_t *file) +{ + if (file->src == NULL) + return; + + switch (file->type) { + case STDIO: + if (file->flags & OWN_STREAM) + fclose (file->src); + break; + case BYTES: + if (file->src != file->data) { + csi_string_t *src = file->src; + if (src != NULL && --src->base.ref == 0) + csi_string_free (ctx, src); + } + break; + case FILTER: + { + csi_file_t *src = file->src; + if (src != NULL && --src->base.ref == 0) + _csi_file_free (ctx, src); + } + break; + case PROCEDURE: + default: + break; + } + file->src = NULL; +} + +void +_csi_file_free (csi_t *ctx, csi_file_t *file) +{ + csi_file_flush (file); + /* XXX putback */ + csi_file_close (ctx, file); + + switch (file->type) { + case BYTES: + break; + case PROCEDURE: +#if 0 + csi_object_free (ctx, file->data); +#endif + break; + case STDIO: + _csi_free (ctx, file->data); + break; + case FILTER: + file->filter->filter_destroy (ctx, file->data); + break; + default: + break; + } + + _csi_slab_free (ctx, file, sizeof (csi_file_t)); +} + +csi_status_t +_csi_file_as_string (csi_t *ctx, + csi_file_t *file, + csi_object_t *obj) +{ + char *bytes; + unsigned int len; + unsigned int allocated; + csi_status_t status; + + allocated = 16384; + bytes = _csi_alloc (ctx, allocated); + if (bytes == NULL) + return _csi_error (CAIRO_STATUS_NO_MEMORY); + + len = 0; + do { + int ret; + + ret = csi_file_read (file, bytes + len, allocated - len); + if (ret == 0) + break; + + len += ret; + if (len + 1 > allocated / 2) { + char *newbytes; + int newlen; + + if (_csi_unlikely (allocated > INT_MAX / 2)) + return _csi_error (CAIRO_STATUS_NO_MEMORY); + + newlen = allocated * 2; + newbytes = _csi_realloc (ctx, bytes, newlen); + if (_csi_unlikely (newbytes == NULL)) { + _csi_free (ctx, bytes); + return _csi_error (CAIRO_STATUS_NO_MEMORY); + } + bytes = newbytes; + allocated = newlen; + } + } while (TRUE); + + bytes[len] = '\0'; /* better safe than sorry! */ + status = csi_string_new_from_bytes (ctx, obj, bytes, len); + if (status) { + _csi_free (ctx, bytes); + return status; + } + + return CAIRO_STATUS_SUCCESS; +} + diff --git a/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-hash.c b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-hash.c new file mode 100644 index 0000000000..dbda407bc6 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-hash.c @@ -0,0 +1,484 @@ +/* + * Copyright © 2004 Red Hat, Inc. + * Copyright © 2005 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Red Hat, Inc. + * + * Contributor(s): + * Keith Packard + * Graydon Hoare + * Carl Worth + * Karl Tomlinson , Mozilla Corporation + */ + +#include "config.h" + +#include "cairo-script-private.h" + +#include + +/* + * An entry can be in one of three states: + * + * FREE: Entry has never been used, terminates all searches. + * Appears in the table as a %NULL pointer. + * + * DEAD: Entry had been live in the past. A dead entry can be reused + * but does not terminate a search for an exact entry. + * Appears in the table as a pointer to DEAD_ENTRY. + * + * LIVE: Entry is currently being used. + * Appears in the table as any non-%NULL, non-DEAD_ENTRY pointer. + */ + +#define DEAD_ENTRY ((csi_hash_entry_t *) 0x1) + +#define ENTRY_IS_FREE(entry) ((entry) == NULL) +#define ENTRY_IS_DEAD(entry) ((entry) == DEAD_ENTRY) +#define ENTRY_IS_LIVE(entry) ((entry) > DEAD_ENTRY) + + +/* This table is open-addressed with double hashing. Each table size is a + * prime chosen to be a little more than double the high water mark for a + * given arrangement, so the tables should remain < 50% full. The table + * size makes for the "first" hash modulus; a second prime (2 less than the + * first prime) serves as the "second" hash modulus, which is co-prime and + * thus guarantees a complete permutation of table indices. + * + * This structure, and accompanying table, is borrowed/modified from the + * file xserver/render/glyph.c in the freedesktop.org x server, with + * permission (and suggested modification of doubling sizes) by Keith + * Packard. + */ + +static const csi_hash_table_arrangement_t hash_table_arrangements [] = { + { 16, 43, 41 }, + { 32, 73, 71 }, + { 64, 151, 149 }, + { 128, 283, 281 }, + { 256, 571, 569 }, + { 512, 1153, 1151 }, + { 1024, 2269, 2267 }, + { 2048, 4519, 4517 }, + { 4096, 9013, 9011 }, + { 8192, 18043, 18041 }, + { 16384, 36109, 36107 }, + { 32768, 72091, 72089 }, + { 65536, 144409, 144407 }, + { 131072, 288361, 288359 }, + { 262144, 576883, 576881 }, + { 524288, 1153459, 1153457 }, + { 1048576, 2307163, 2307161 }, + { 2097152, 4613893, 4613891 }, + { 4194304, 9227641, 9227639 }, + { 8388608, 18455029, 18455027 }, + { 16777216, 36911011, 36911009 }, + { 33554432, 73819861, 73819859 }, + { 67108864, 147639589, 147639587 }, + { 134217728, 295279081, 295279079 }, + { 268435456, 590559793, 590559791 } +}; + +#define NUM_HASH_TABLE_ARRANGEMENTS ARRAY_LENGTH (hash_table_arrangements) + +/** + * _csi_hash_table_create: + * @keys_equal: a function to return %TRUE if two keys are equal + * + * Creates a new hash table which will use the keys_equal() function + * to compare hash keys. Data is provided to the hash table in the + * form of user-derived versions of #csi_hash_entry_t. A hash entry + * must be able to hold both a key (including a hash code) and a + * value. Sometimes only the key will be necessary, (as in + * _csi_hash_table_remove), and other times both a key and a value + * will be necessary, (as in _csi_hash_table_insert). + * + * See #csi_hash_entry_t for more details. + * + * Return value: the new hash table or %NULL if out of memory. + **/ +csi_status_t +_csi_hash_table_init (csi_hash_table_t *hash_table, + csi_hash_keys_equal_func_t keys_equal) +{ + hash_table->keys_equal = keys_equal; + + hash_table->arrangement = &hash_table_arrangements[0]; + + hash_table->entries = calloc (hash_table->arrangement->size, + sizeof(csi_hash_entry_t *)); + if (hash_table->entries == NULL) + return _csi_error (CAIRO_STATUS_NO_MEMORY); + + hash_table->live_entries = 0; + hash_table->used_entries = 0; + hash_table->iterating = 0; + + return CSI_STATUS_SUCCESS; +} + +/** + * _csi_hash_table_destroy: + * @hash_table: an empty hash table to destroy + * + * Immediately destroys the given hash table, freeing all resources + * associated with it. + * + * WARNING: The hash_table must have no live entries in it before + * _csi_hash_table_destroy is called. It is a fatal error otherwise, + * and this function will halt. The rationale for this behavior is to + * avoid memory leaks and to avoid needless complication of the API + * with destroy notify callbacks. + * + * WARNING: The hash_table must have no running iterators in it when + * _csi_hash_table_destroy is called. It is a fatal error otherwise, + * and this function will halt. + **/ +void +_csi_hash_table_fini (csi_hash_table_t *hash_table) +{ + free (hash_table->entries); +} + +static csi_hash_entry_t ** +_csi_hash_table_lookup_unique_key (csi_hash_table_t *hash_table, + csi_hash_entry_t *key) +{ + unsigned long table_size, i, idx, step; + csi_hash_entry_t **entry; + + table_size = hash_table->arrangement->size; + idx = key->hash % table_size; + + entry = &hash_table->entries[idx]; + if (! ENTRY_IS_LIVE (*entry)) + return entry; + + i = 1; + step = key->hash % hash_table->arrangement->rehash; + if (step == 0) + step = 1; + do { + idx += step; + if (idx >= table_size) + idx -= table_size; + + entry = &hash_table->entries[idx]; + if (! ENTRY_IS_LIVE (*entry)) + return entry; + } while (++i < table_size); + + return NULL; +} + +/** + * _csi_hash_table_manage: + * @hash_table: a hash table + * + * Resize the hash table if the number of entries has gotten much + * bigger or smaller than the ideal number of entries for the current + * size, or control the number of dead entries by moving the entries + * within the table. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful or + * %CAIRO_STATUS_NO_MEMORY if out of memory. + **/ +static csi_status_t +_csi_hash_table_manage (csi_hash_table_t *hash_table) +{ + csi_hash_table_t tmp; + csi_boolean_t realloc = TRUE; + unsigned long i; + + /* This keeps the size of the hash table between 2 and approximately 8 + * times the number of live entries and keeps the proportion of free + * entries (search-terminations) > 25%. + */ + unsigned long high = hash_table->arrangement->high_water_mark; + unsigned long low = high >> 2; + unsigned long max_used = high + high / 2; + + tmp = *hash_table; + + if (hash_table->live_entries > high) { + tmp.arrangement = hash_table->arrangement + 1; + /* This code is being abused if we can't make a table big enough. */ + } else if (hash_table->live_entries < low && + /* Can't shrink if we're at the smallest size */ + hash_table->arrangement != &hash_table_arrangements[0]) + { + tmp.arrangement = hash_table->arrangement - 1; + } + else if (hash_table->used_entries > max_used) + { + /* Clean out dead entries to prevent lookups from becoming too slow. */ + for (i = 0; i < hash_table->arrangement->size; ++i) { + if (ENTRY_IS_DEAD (hash_table->entries[i])) + hash_table->entries[i] = NULL; + } + hash_table->used_entries = hash_table->live_entries; + + /* There is no need to reallocate but some entries may need to be + * moved. Typically the proportion of entries needing to be moved is + * small, but, if the moving should leave a large number of dead + * entries, they will be cleaned out next time this code is + * executed. */ + realloc = FALSE; + } + else + { + return CAIRO_STATUS_SUCCESS; + } + + if (realloc) { + tmp.entries = calloc (tmp.arrangement->size, + sizeof (csi_hash_entry_t*)); + if (tmp.entries == NULL) + return _csi_error (CAIRO_STATUS_NO_MEMORY); + + hash_table->used_entries = 0; + } + + for (i = 0; i < hash_table->arrangement->size; ++i) { + csi_hash_entry_t *entry, **pos; + + entry = hash_table->entries[i]; + if (ENTRY_IS_LIVE (entry)) { + hash_table->entries[i] = DEAD_ENTRY; + + pos = _csi_hash_table_lookup_unique_key (&tmp, entry); + if (ENTRY_IS_FREE (*pos)) + hash_table->used_entries++; + + *pos = entry; + } + } + + if (realloc) { + free (hash_table->entries); + hash_table->entries = tmp.entries; + hash_table->arrangement = tmp.arrangement; + } + + return CAIRO_STATUS_SUCCESS; +} + +/** + * _csi_hash_table_lookup: + * @hash_table: a hash table + * @key: the key of interest + * + * Performs a lookup in @hash_table looking for an entry which has a + * key that matches @key, (as determined by the keys_equal() function + * passed to _csi_hash_table_create). + * + * Return value: the matching entry, of %NULL if no match was found. + **/ +void * +_csi_hash_table_lookup (csi_hash_table_t *hash_table, + csi_hash_entry_t *key) +{ + csi_hash_entry_t **entry; + unsigned long table_size, i, idx, step; + + table_size = hash_table->arrangement->size; + idx = key->hash % table_size; + entry = &hash_table->entries[idx]; + + if (ENTRY_IS_LIVE (*entry)) { + if ((*entry)->hash == key->hash && hash_table->keys_equal (key, *entry)) + return *entry; + } else if (ENTRY_IS_FREE (*entry)) + return NULL; + + i = 1; + step = key->hash % hash_table->arrangement->rehash; + if (step == 0) + step = 1; + do { + idx += step; + if (idx >= table_size) + idx -= table_size; + + entry = &hash_table->entries[idx]; + if (ENTRY_IS_LIVE (*entry)) { + if ((*entry)->hash == key->hash && + hash_table->keys_equal (key, *entry)) + { + return *entry; + } + } else if (ENTRY_IS_FREE (*entry)) + return NULL; + } while (++i < table_size); + + return NULL; +} + +/** + * _csi_hash_table_insert: + * @hash_table: a hash table + * @key_and_value: an entry to be inserted + * + * Insert the entry #key_and_value into the hash table. + * + * WARNING: There must not be an existing entry in the hash table + * with a matching key. + * + * WARNING: It is a fatal error to insert an element while + * an iterator is running + * + * Instead of using insert to replace an entry, consider just editing + * the entry obtained with _csi_hash_table_lookup. Or if absolutely + * necessary, use _csi_hash_table_remove first. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful or + * %CAIRO_STATUS_NO_MEMORY if insufficient memory is available. + **/ +csi_status_t +_csi_hash_table_insert (csi_hash_table_t *hash_table, + csi_hash_entry_t *key_and_value) +{ + csi_status_t status; + csi_hash_entry_t **entry; + + hash_table->live_entries++; + status = _csi_hash_table_manage (hash_table); + if (_csi_unlikely (status)) { + /* abort the insert... */ + hash_table->live_entries--; + return status; + } + + entry = _csi_hash_table_lookup_unique_key (hash_table, + key_and_value); + if (ENTRY_IS_FREE (*entry)) + hash_table->used_entries++; + + *entry = key_and_value; + return CAIRO_STATUS_SUCCESS; +} + +static csi_hash_entry_t ** +_csi_hash_table_lookup_exact_key (csi_hash_table_t *hash_table, + csi_hash_entry_t *key) +{ + unsigned long table_size, i, idx, step; + csi_hash_entry_t **entry; + + table_size = hash_table->arrangement->size; + idx = key->hash % table_size; + + entry = &hash_table->entries[idx]; + if (*entry == key) + return entry; + + i = 1; + step = key->hash % hash_table->arrangement->rehash; + if (step == 0) + step = 1; + do { + idx += step; + if (idx >= table_size) + idx -= table_size; + + entry = &hash_table->entries[idx]; + if (*entry == key) + return entry; + } while (++i < table_size); + + return NULL; +} +/** + * _csi_hash_table_remove: + * @hash_table: a hash table + * @key: key of entry to be removed + * + * Remove an entry from the hash table which points to @key. + * + * Return value: %CAIRO_STATUS_SUCCESS if successful or + * %CAIRO_STATUS_NO_MEMORY if out of memory. + **/ +void +_csi_hash_table_remove (csi_hash_table_t *hash_table, + csi_hash_entry_t *key) +{ + *_csi_hash_table_lookup_exact_key (hash_table, key) = DEAD_ENTRY; + hash_table->live_entries--; + + /* Check for table resize. Don't do this when iterating as this will + * reorder elements of the table and cause the iteration to potentially + * skip some elements. */ + if (hash_table->iterating == 0) { + /* This call _can_ fail, but only in failing to allocate new + * memory to shrink the hash table. It does leave the table in a + * consistent state, and we've already succeeded in removing the + * entry, so we don't examine the failure status of this call. */ + _csi_hash_table_manage (hash_table); + } +} + +/** + * _csi_hash_table_foreach: + * @hash_table: a hash table + * @hash_callback: function to be called for each live entry + * @closure: additional argument to be passed to @hash_callback + * + * Call @hash_callback for each live entry in the hash table, in a + * non-specified order. + * + * Entries in @hash_table may be removed by code executed from @hash_callback. + * + * Entries may not be inserted to @hash_table, nor may @hash_table + * be destroyed by code executed from @hash_callback. The relevant + * functions will halt in these cases. + **/ +void +_csi_hash_table_foreach (csi_hash_table_t *hash_table, + csi_hash_callback_func_t hash_callback, + void *closure) +{ + unsigned long i; + csi_hash_entry_t *entry; + + /* Mark the table for iteration */ + ++hash_table->iterating; + for (i = 0; i < hash_table->arrangement->size; i++) { + entry = hash_table->entries[i]; + if (ENTRY_IS_LIVE(entry)) + hash_callback (entry, closure); + } + /* If some elements were deleted during the iteration, + * the table may need resizing. Just do this every time + * as the check is inexpensive. + */ + if (--hash_table->iterating == 0) { + /* Should we fail to shrink the hash table, it is left unaltered, + * and we don't need to propagate the error status. */ + _csi_hash_table_manage (hash_table); + } +} diff --git a/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-interpreter.c b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-interpreter.c new file mode 100644 index 0000000000..e3aa3bae87 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-interpreter.c @@ -0,0 +1,710 @@ +/* + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + */ + +#include "config.h" + +#include "cairo.h" + +#include "cairo-script-private.h" + +#include +#include +#include +#include +#include + +#ifndef MAX +#define MAX(a,b) (((a)>=(b))?(a):(b)) +#endif + +csi_status_t +_csi_error (csi_status_t status) +{ + return status; +} + +/* XXX track global/local memory, cap etc, mark/sweep GC */ +void * +_csi_alloc (csi_t *ctx, int size) +{ + return malloc (size); +} + +void * +_csi_alloc0 (csi_t *ctx, int size) +{ + void *ptr; + + ptr = _csi_alloc (ctx, size); + if (_csi_likely (ptr != NULL)) + memset (ptr, 0, size); + + return ptr; +} + +void * +_csi_realloc (csi_t *ctx, void *ptr, int size) +{ + return realloc (ptr, size); +} + +void +_csi_free (csi_t *ctx, void *ptr) +{ + if (_csi_unlikely (ptr == NULL)) + return; + + free (ptr); +} + +void * +_csi_perm_alloc (csi_t *ctx, int size) +{ + csi_chunk_t *chunk; + void *ptr; + + size = (size + sizeof (void *)-1) & -sizeof (void *); + + chunk = ctx->perm_chunk; + if (chunk == NULL || chunk->rem < size) { + int chunk_size = (size + 8191) & -8192; + chunk = _csi_alloc (ctx, sizeof (csi_chunk_t) + chunk_size); + if (_csi_unlikely (chunk == NULL)) + return NULL; + + chunk->rem = chunk_size; + chunk->ptr = (char *) (chunk + 1); + chunk->next = ctx->perm_chunk; + ctx->perm_chunk = chunk; + } + + ptr = chunk->ptr; + chunk->ptr += size; + chunk->rem -= size; + + return ptr; +} + +void * +_csi_slab_alloc (csi_t *ctx, int size) +{ +#if CSI_DEBUG_MALLOC + return malloc (size); +#else + int chunk_size; + csi_chunk_t *chunk; + void *ptr; + + chunk_size = 2 * sizeof (void *); + chunk_size = (size + chunk_size - 1) / chunk_size; + + if (ctx->slabs[chunk_size].free_list) { + ptr = ctx->slabs[chunk_size].free_list; + ctx->slabs[chunk_size].free_list = *(void **) ptr; + return ptr; + } + + chunk = ctx->slabs[chunk_size].chunk; + if (chunk == NULL || ! chunk->rem) { + int cnt = MAX (128, 8192 / (chunk_size * 2 * sizeof (void *))); + + chunk = _csi_alloc (ctx, + sizeof (csi_chunk_t) + + cnt * chunk_size * 2 * sizeof (void *)); + if (_csi_unlikely (chunk == NULL)) + return NULL; + + chunk->rem = cnt; + chunk->ptr = (char *) (chunk + 1); + chunk->next = ctx->slabs[chunk_size].chunk; + ctx->slabs[chunk_size].chunk = chunk; + } + + ptr = chunk->ptr; + chunk->ptr += chunk_size * 2 * sizeof (void *); + chunk->rem--; + + return ptr; +#endif +} + +void +_csi_slab_free (csi_t *ctx, void *ptr, int size) +{ + int chunk_size; + void **free_list; + + if (_csi_unlikely (ptr == NULL)) + return; + +#if CSI_DEBUG_MALLOC + free (ptr); +#else + chunk_size = 2 * sizeof (void *); + chunk_size = (size + chunk_size - 1) / chunk_size; + + free_list = ptr; + *free_list = ctx->slabs[chunk_size].free_list; + ctx->slabs[chunk_size].free_list = ptr; +#endif +} + +csi_status_t +_csi_stack_push (csi_t *ctx, csi_stack_t *stack, + const csi_object_t *obj) +{ + if (_csi_unlikely (stack->len == stack->size)) + return _csi_stack_push_internal (ctx, stack, obj); + + stack->objects[stack->len++] = *obj; + return CSI_STATUS_SUCCESS; +} + +static void +_csi_perm_fini (csi_t *ctx) +{ + while (ctx->perm_chunk != NULL) { + csi_chunk_t *chunk = ctx->perm_chunk; + ctx->perm_chunk = chunk->next; + _csi_free (ctx, chunk); + } +} + +static void +_csi_slab_fini (csi_t *ctx) +{ + unsigned int i; + + for (i = 0; i < sizeof (ctx->slabs) / sizeof (ctx->slabs[0]); i++) { + while (ctx->slabs[i].chunk != NULL) { + csi_chunk_t *chunk = ctx->slabs[i].chunk; + ctx->slabs[i].chunk = chunk->next; + _csi_free (ctx, chunk); + } + } +} + +static csi_status_t +_add_operator (csi_t *ctx, + csi_dictionary_t *dict, + const csi_operator_def_t *def) +{ + csi_object_t name; + csi_object_t operator; + csi_status_t status; + + status = csi_name_new_static (ctx, &name, def->name); + if (status) + return status; + + csi_operator_new (&operator, def->op); + + return csi_dictionary_put (ctx, dict, name.datum.name, &operator); +} + +static csi_status_t +_add_integer_constant (csi_t *ctx, + csi_dictionary_t *dict, + const csi_integer_constant_def_t *def) +{ + csi_object_t name; + csi_object_t constant; + csi_status_t status; + + status = csi_name_new_static (ctx, &name, def->name); + if (status) + return status; + + csi_integer_new (&constant, def->value); + + return csi_dictionary_put (ctx, dict, name.datum.name, &constant); +} + +static csi_status_t +_add_real_constant (csi_t *ctx, + csi_dictionary_t *dict, + const csi_real_constant_def_t *def) +{ + csi_object_t name; + csi_object_t constant; + csi_status_t status; + + status = csi_name_new_static (ctx, &name, def->name); + if (status) + return status; + + csi_real_new (&constant, def->value); + + return csi_dictionary_put (ctx, dict, name.datum.name, &constant); +} + +static csi_status_t +_init_dictionaries (csi_t *ctx) +{ + csi_status_t status; + csi_stack_t *stack; + csi_object_t obj; + csi_dictionary_t *dict, *opcodes; + const csi_operator_def_t *odef; + const csi_integer_constant_def_t *idef; + const csi_real_constant_def_t *rdef; + unsigned n; + + stack = &ctx->dstack; + + status = _csi_stack_init (ctx, stack, 4); + if (_csi_unlikely (status)) + return status; + + /* systemdict */ + status = csi_dictionary_new (ctx, &obj); + if (_csi_unlikely (status)) + return status; + + status = _csi_stack_push (ctx, stack, &obj); + if (_csi_unlikely (status)) + return status; + + dict = obj.datum.dictionary; + + status = csi_dictionary_new (ctx, &obj); + if (_csi_unlikely (status)) + return status; + + opcodes = obj.datum.dictionary; + + n = 0; + csi_integer_new (&obj, n); + status = csi_dictionary_put (ctx, opcodes, 0, &obj); + if (_csi_unlikely (status)) + return status; + ctx->opcode[n++] = NULL; + + /* fill systemdict with operators */ + for (odef = _csi_operators (); odef->name != NULL; odef++) { + status = _add_operator (ctx, dict, odef); + if (_csi_unlikely (status)) + return status; + + if (! csi_dictionary_has (opcodes, (csi_name_t) odef->op)) { + csi_integer_new (&obj, n); + status = csi_dictionary_put (ctx, + opcodes, (csi_name_t) odef->op, &obj); + if (_csi_unlikely (status)) + return status; + + assert (n < sizeof (ctx->opcode) / sizeof (ctx->opcode[0])); + ctx->opcode[n++] = odef->op; + } + } + csi_dictionary_free (ctx, opcodes); + + /* add constants */ + for (idef = _csi_integer_constants (); idef->name != NULL; idef++) { + status = _add_integer_constant (ctx, dict, idef); + if (_csi_unlikely (status)) + return status; + } + for (rdef = _csi_real_constants (); rdef->name != NULL; rdef++) { + status = _add_real_constant (ctx, dict, rdef); + if (_csi_unlikely (status)) + return status; + } + + /* and seal */ + //dict.type &= ~CSI_OBJECT_ATTR_WRITABLE; + + + /* globaldict */ + status = csi_dictionary_new (ctx, &obj); + if (_csi_unlikely (status)) + return status; + status = _csi_stack_push (ctx, stack, &obj); + if (_csi_unlikely (status)) + return status; + + /* userdict */ + status = csi_dictionary_new (ctx, &obj); + if (_csi_unlikely (status)) + return status; + status = _csi_stack_push (ctx, stack, &obj); + if (_csi_unlikely (status)) + return status; + + return CSI_STATUS_SUCCESS; +} + +/* intern string */ + +typedef struct _cairo_intern_string { + csi_hash_entry_t hash_entry; + int len; + char *string; +} csi_intern_string_t; + +static unsigned long +_intern_string_hash (const char *str, int len) +{ + const signed char *p = (const signed char *) str; + if (len > 0) { + unsigned int h = *p; + + while (--len) + h = (h << 5) - h + *++p; + + return h; + } + return 0; +} + +static cairo_bool_t +_intern_string_equal (const void *_a, const void *_b) +{ + const csi_intern_string_t *a = _a; + const csi_intern_string_t *b = _b; + + if (a->len != b->len) + return FALSE; + + return memcmp (a->string, b->string, a->len) == 0; +} + +static void +_csi_init (csi_t *ctx) +{ + csi_status_t status; + + memset (ctx, 0, sizeof (*ctx)); + + ctx->status = CSI_STATUS_SUCCESS; + ctx->ref_count = 1; + ctx->scanner.line_number = -1; + + status = _csi_hash_table_init (&ctx->strings, _intern_string_equal); + if (status) + goto FAIL; + + status = _csi_stack_init (ctx, &ctx->ostack, 2048); + if (status) + goto FAIL; + status = _init_dictionaries (ctx); + if (status) + goto FAIL; + + status = _csi_scanner_init (ctx, &ctx->scanner); + if (status) + goto FAIL; + + return; + +FAIL: + if (ctx->status == CSI_STATUS_SUCCESS) + ctx->status = status; +} + +static void +_csi_finish (csi_t *ctx) +{ + _csi_stack_fini (ctx, &ctx->ostack); + _csi_stack_fini (ctx, &ctx->dstack); + _csi_scanner_fini (ctx, &ctx->scanner); + + _csi_hash_table_fini (&ctx->strings); +} + +csi_status_t +_csi_name_define (csi_t *ctx, csi_name_t name, csi_object_t *obj) +{ + return csi_dictionary_put (ctx, + ctx->dstack.objects[ctx->dstack.len-1].datum.dictionary, + name, + obj); +} + +csi_status_t +_csi_name_lookup (csi_t *ctx, csi_name_t name, csi_object_t *obj) +{ + int i; + + for (i = ctx->dstack.len; i--; ) { + csi_dictionary_t *dict; + csi_dictionary_entry_t *entry; + + dict = ctx->dstack.objects[i].datum.dictionary; + entry = _csi_hash_table_lookup (&dict->hash_table, + (csi_hash_entry_t *) &name); + if (entry != NULL) { + *obj = entry->value; + return CSI_STATUS_SUCCESS; + } + } + + return _csi_error (CSI_STATUS_INVALID_SCRIPT); +} + +csi_status_t +_csi_name_undefine (csi_t *ctx, csi_name_t name) +{ + unsigned int i; + + for (i = ctx->dstack.len; --i; ) { + if (csi_dictionary_has (ctx->dstack.objects[i].datum.dictionary, + name)) + { + csi_dictionary_remove (ctx, + ctx->dstack.objects[i].datum.dictionary, + name); + return CSI_STATUS_SUCCESS; + } + } + + return _csi_error (CSI_STATUS_INVALID_SCRIPT); +} + +csi_status_t +_csi_intern_string (csi_t *ctx, const char **str_inout, int len) +{ + char *str = (char *) *str_inout; + csi_intern_string_t tmpl, *istring; + csi_status_t status = CSI_STATUS_SUCCESS; + + tmpl.hash_entry.hash = _intern_string_hash (str, len); + tmpl.len = len; + tmpl.string = (char *) str; + + istring = _csi_hash_table_lookup (&ctx->strings, &tmpl.hash_entry); + if (istring == NULL) { + istring = _csi_perm_alloc (ctx, + sizeof (csi_intern_string_t) + len + 1); + if (istring != NULL) { + istring->hash_entry.hash = tmpl.hash_entry.hash; + istring->len = tmpl.len; + istring->string = (char *) (istring + 1); + memcpy (istring->string, str, len); + istring->string[len] = '\0'; + + status = _csi_hash_table_insert (&ctx->strings, + &istring->hash_entry); + if (_csi_unlikely (status)) { + _csi_free (ctx, istring); + return status; + } + } else + return _csi_error (CSI_STATUS_NO_MEMORY); + } + + *str_inout = istring->string; + return CSI_STATUS_SUCCESS; +} + +/* Public */ + +static csi_t _csi_nil = { -1, CSI_STATUS_NO_MEMORY }; + +csi_t * +cairo_script_interpreter_create (void) +{ + csi_t *ctx; + + ctx = malloc (sizeof (csi_t)); + if (ctx == NULL) + return (csi_t *) &_csi_nil; + + _csi_init (ctx); + + return ctx; +} + +void +cairo_script_interpreter_install_hooks (csi_t *ctx, + const csi_hooks_t *hooks) +{ + if (ctx->status) + return; + + ctx->hooks = *hooks; +} + +cairo_status_t +cairo_script_interpreter_run (csi_t *ctx, const char *filename) +{ + csi_object_t file; + + if (ctx->status) + return ctx->status; + if (ctx->finished) + return ctx->status = CSI_STATUS_INTERPRETER_FINISHED; + + ctx->status = csi_file_new (ctx, &file, filename, "r"); + if (ctx->status) + return ctx->status; + + file.type |= CSI_OBJECT_ATTR_EXECUTABLE; + + ctx->status = csi_object_execute (ctx, &file); + csi_object_free (ctx, &file); + + return ctx->status; +} + +cairo_status_t +cairo_script_interpreter_feed_stream (csi_t *ctx, FILE *stream) +{ + csi_object_t file; + + if (ctx->status) + return ctx->status; + if (ctx->finished) + return ctx->status = CSI_STATUS_INTERPRETER_FINISHED; + + ctx->status = csi_file_new_for_stream (ctx, &file, stream); + if (ctx->status) + return ctx->status; + + file.type |= CSI_OBJECT_ATTR_EXECUTABLE; + + ctx->status = csi_object_execute (ctx, &file); + csi_object_free (ctx, &file); + + return ctx->status; +} + +cairo_status_t +cairo_script_interpreter_feed_string (csi_t *ctx, const char *line, int len) +{ + csi_object_t file; + + if (ctx->status) + return ctx->status; + if (ctx->finished) + return ctx->status = CSI_STATUS_INTERPRETER_FINISHED; + + if (len < 0) + len = strlen (line); + ctx->status = csi_file_new_for_bytes (ctx, &file, line, len); + if (ctx->status) + return ctx->status; + + file.type |= CSI_OBJECT_ATTR_EXECUTABLE; + + ctx->status = csi_object_execute (ctx, &file); + csi_object_free (ctx, &file); + + return ctx->status; +} + +unsigned int +cairo_script_interpreter_get_line_number (csi_t *ctx) +{ + return ctx->scanner.line_number + 1; /* 1 index based */ +} + +csi_t * +cairo_script_interpreter_reference (csi_t *ctx) +{ + ctx->ref_count++; + return ctx; +} + +cairo_status_t +cairo_script_interpreter_finish (csi_t *ctx) +{ + csi_status_t status; + + status = ctx->status; + if (! ctx->finished) { + _csi_finish (ctx); + ctx->finished = 1; + } else if (status == CSI_STATUS_SUCCESS) { + status = ctx->status = CSI_STATUS_INTERPRETER_FINISHED; + } + + return status; +} + +static void +_csi_fini (csi_t *ctx) +{ + if (! ctx->finished) + _csi_finish (ctx); + + if (ctx->free_array != NULL) + csi_array_free (ctx, ctx->free_array); + if (ctx->free_dictionary != NULL) + csi_dictionary_free (ctx, ctx->free_dictionary); + if (ctx->free_string != NULL) + csi_string_free (ctx, ctx->free_string); + + _csi_slab_fini (ctx); + _csi_perm_fini (ctx); +} + +cairo_status_t +cairo_script_interpreter_destroy (csi_t *ctx) +{ + csi_status_t status; + + status = ctx->status; + if (--ctx->ref_count) + return status; + + _csi_fini (ctx); + free (ctx); + + return status; +} + +cairo_status_t +cairo_script_interpreter_translate_stream (FILE *stream, + cairo_write_func_t write_func, + void *closure) +{ + csi_t ctx; + csi_object_t src; + csi_status_t status; + + _csi_init (&ctx); + + status = csi_file_new_for_stream (&ctx, &src, stream); + if (status) + goto BAIL; + + status = _csi_translate_file (&ctx, src.datum.file, write_func, closure); + +BAIL: + csi_object_free (&ctx, &src); + _csi_fini (&ctx); + + return status; +} diff --git a/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-interpreter.h b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-interpreter.h new file mode 100644 index 0000000000..27fb986618 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-interpreter.h @@ -0,0 +1,124 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_SCRIPT_INTERPRETER_H +#define CAIRO_SCRIPT_INTERPRETER_H + +#include +#include + +CAIRO_BEGIN_DECLS + +typedef struct _cairo_script_interpreter cairo_script_interpreter_t; + +/* XXX expose csi_dictionary_t and pass to hooks */ +typedef void +(*csi_destroy_func_t) (void *closure, + void *ptr); + +typedef cairo_surface_t * +(*csi_surface_create_func_t) (void *closure, + cairo_content_t content, + double width, + double height, + long uid); +typedef cairo_t * +(*csi_context_create_func_t) (void *closure, + cairo_surface_t *surface); +typedef void +(*csi_show_page_func_t) (void *closure, + cairo_t *cr); + +typedef void +(*csi_copy_page_func_t) (void *closure, + cairo_t *cr); + +typedef cairo_surface_t * +(*csi_create_source_image_t) (void *closure, + cairo_format_t format, + int width, int height, + long uid); + +typedef struct _cairo_script_interpreter_hooks { + void *closure; + csi_surface_create_func_t surface_create; + csi_destroy_func_t surface_destroy; + csi_context_create_func_t context_create; + csi_destroy_func_t context_destroy; + csi_show_page_func_t show_page; + csi_copy_page_func_t copy_page; + csi_create_source_image_t create_source_image; +} cairo_script_interpreter_hooks_t; + +cairo_public cairo_script_interpreter_t * +cairo_script_interpreter_create (void); + +cairo_public void +cairo_script_interpreter_install_hooks (cairo_script_interpreter_t *ctx, + const cairo_script_interpreter_hooks_t *hooks); + +cairo_public cairo_status_t +cairo_script_interpreter_run (cairo_script_interpreter_t *ctx, + const char *filename); + +cairo_public cairo_status_t +cairo_script_interpreter_feed_stream (cairo_script_interpreter_t *ctx, + FILE *stream); + +cairo_public cairo_status_t +cairo_script_interpreter_feed_string (cairo_script_interpreter_t *ctx, + const char *line, + int len); + +cairo_public unsigned int +cairo_script_interpreter_get_line_number (cairo_script_interpreter_t *ctx); + +cairo_public cairo_script_interpreter_t * +cairo_script_interpreter_reference (cairo_script_interpreter_t *ctx); + +cairo_public cairo_status_t +cairo_script_interpreter_finish (cairo_script_interpreter_t *ctx); + +cairo_public cairo_status_t +cairo_script_interpreter_destroy (cairo_script_interpreter_t *ctx); + +cairo_public cairo_status_t +cairo_script_interpreter_translate_stream (FILE *stream, + cairo_write_func_t write_func, + void *closure); + +CAIRO_END_DECLS + +#endif /*CAIRO_SCRIPT_INTERPRETER_H*/ diff --git a/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-objects.c b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-objects.c new file mode 100644 index 0000000000..2d7937be33 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-objects.c @@ -0,0 +1,938 @@ +/* + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + */ + +#include "config.h" + +#include "cairo-script-private.h" + +#include /* INT_MAX */ +#include + +csi_status_t +csi_array_new (csi_t *ctx, + csi_integer_t initial_size, + csi_object_t *obj) + +{ + csi_array_t *array; + + if (ctx->free_array == NULL || + ctx->free_array->stack.size <= initial_size) + { + csi_status_t status; + + array = _csi_slab_alloc (ctx, sizeof (csi_array_t)); + if (_csi_unlikely (array == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + + status = _csi_stack_init (ctx, &array->stack, + initial_size ? initial_size : 32); + if (_csi_unlikely (status)) { + _csi_slab_free (ctx, array, sizeof (csi_array_t)); + return status; + } + } else { + array = ctx->free_array; + ctx->free_array = NULL; + } + + array->base.type = CSI_OBJECT_TYPE_ARRAY; + array->base.ref = 1; + + obj->type = CSI_OBJECT_TYPE_ARRAY; + obj->datum.array = array; + + return CSI_STATUS_SUCCESS; +} + +csi_status_t +csi_array_put (csi_t *ctx, + csi_array_t *array, + csi_integer_t elem, + csi_object_t *value) +{ + if (_csi_unlikely (elem < 0)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + if (_csi_unlikely (elem >= array->stack.len)) { + csi_status_t status; + + status = _csi_stack_grow (ctx, &array->stack, elem + 1); + if (_csi_unlikely (status)) + return status; + + memset (array->stack.objects + array->stack.len, + 0, (elem - array->stack.len + 1) * sizeof (csi_object_t)); + array->stack.len = elem + 1; + } + + csi_object_free (ctx, &array->stack.objects[elem]); + array->stack.objects[elem] = *csi_object_reference (value); + + return CSI_STATUS_SUCCESS; +} + +csi_status_t +csi_array_get (csi_t *ctx, + csi_array_t *array, + csi_integer_t elem, + csi_object_t *value) +{ + if (_csi_unlikely (elem < 0)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + if (_csi_unlikely (elem > array->stack.len)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + *value = array->stack.objects[elem]; + return CSI_STATUS_SUCCESS; +} + +csi_status_t +csi_array_append (csi_t *ctx, + csi_array_t *array, + csi_object_t *obj) +{ + return _csi_stack_push (ctx, &array->stack, csi_object_reference (obj)); +} + +inline csi_status_t +_csi_array_execute (csi_t *ctx, csi_array_t *array) +{ + csi_integer_t i; + csi_status_t status; + + if (_csi_unlikely (array->stack.len == 0)) + return CSI_STATUS_SUCCESS; + + for (i = 0; i < array->stack.len; i++) { + csi_object_t *obj = &array->stack.objects[i]; + + if (obj->type & CSI_OBJECT_ATTR_EXECUTABLE) { + if (obj->type == (CSI_OBJECT_TYPE_ARRAY | + CSI_OBJECT_ATTR_EXECUTABLE)) + { + status = _csi_push_ostack_copy (ctx, &array->stack.objects[i]); + } + else + status = csi_object_execute (ctx, &array->stack.objects[i]); + } else + status = _csi_push_ostack_copy (ctx, &array->stack.objects[i]); + if (_csi_unlikely (status)) + return status; + } + + return CSI_STATUS_SUCCESS; +} + +void +csi_array_free (csi_t *ctx, csi_array_t *array) +{ +#if CSI_DEBUG_MALLOC + _csi_stack_fini (ctx, &array->stack); + _csi_slab_free (ctx, array, sizeof (csi_array_t)); +#else + csi_integer_t n; + + for (n = 0; n < array->stack.len; n++) + csi_object_free (ctx, &array->stack.objects[n]); + array->stack.len = 0; + + if (ctx->free_array != NULL) { + if (array->stack.size > ctx->free_array->stack.size) { + csi_array_t *tmp = ctx->free_array; + ctx->free_array = array; + array = tmp; + } + + _csi_stack_fini (ctx, &array->stack); + _csi_slab_free (ctx, array, sizeof (csi_array_t)); + } else + ctx->free_array = array; +#endif +} + +static cairo_bool_t +_dictionary_name_equal (const void *_a, const void *_b) +{ + return TRUE; +} + +csi_status_t +csi_dictionary_new (csi_t *ctx, + csi_object_t *obj) + +{ + csi_dictionary_t *dict; + + if (ctx->free_dictionary != NULL) { + dict = ctx->free_dictionary; + ctx->free_dictionary = NULL; + } else { + csi_status_t status; + + dict = _csi_slab_alloc (ctx, sizeof (csi_dictionary_t)); + if (_csi_unlikely (dict == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + + status = _csi_hash_table_init (&dict->hash_table, + _dictionary_name_equal); + if (_csi_unlikely (status)) { + _csi_slab_free (ctx, dict, sizeof (csi_dictionary_t)); + return status; + } + } + + dict->base.type = CSI_OBJECT_TYPE_DICTIONARY; + dict->base.ref = 1; + + obj->type = CSI_OBJECT_TYPE_DICTIONARY; + obj->datum.dictionary = dict; + + return CSI_STATUS_SUCCESS; +} + +struct _dictionary_entry_pluck { + csi_t *ctx; + csi_hash_table_t *hash_table; +}; + +static void +_dictionary_entry_pluck (void *entry, void *data) +{ + csi_dictionary_entry_t *dict_entry; + struct _dictionary_entry_pluck *pluck_data; + + dict_entry = entry; + pluck_data = data; + + _csi_hash_table_remove (pluck_data->hash_table, entry); + csi_object_free (pluck_data->ctx, &dict_entry->value); + _csi_slab_free (pluck_data->ctx, entry, sizeof (csi_dictionary_entry_t)); +} + +void +csi_dictionary_free (csi_t *ctx, + csi_dictionary_t *dict) +{ + struct _dictionary_entry_pluck data; + + data.ctx = ctx; + data.hash_table = &dict->hash_table; + _csi_hash_table_foreach (&dict->hash_table, + _dictionary_entry_pluck, + &data); + +#if CSI_DEBUG_MALLOC + _csi_hash_table_fini (&dict->hash_table); + _csi_slab_free (ctx, dict, sizeof (csi_dictionary_t)); +#else + if (ctx->free_dictionary != NULL) { + _csi_hash_table_fini (&dict->hash_table); + _csi_slab_free (ctx, dict, sizeof (csi_dictionary_t)); + } else + ctx->free_dictionary = dict; +#endif +} + +csi_status_t +csi_dictionary_put (csi_t *ctx, + csi_dictionary_t *dict, + csi_name_t name, + csi_object_t *value) +{ + csi_dictionary_entry_t *entry; + csi_status_t status; + + entry = _csi_hash_table_lookup (&dict->hash_table, + (csi_hash_entry_t *) &name); + if (entry != NULL) { + /* replace the existing entry */ + csi_object_free (ctx, &entry->value); + entry->value = *csi_object_reference (value); + return CSI_STATUS_SUCCESS; + } + + entry = _csi_slab_alloc (ctx, sizeof (*entry)); + if (_csi_unlikely (entry == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + + entry->hash_entry.hash = name; + status = _csi_hash_table_insert (&dict->hash_table, &entry->hash_entry); + if (_csi_unlikely (status)) { + _csi_slab_free (ctx, entry, sizeof (*entry)); + return status; + } + + entry->value = *csi_object_reference (value); + + return CSI_STATUS_SUCCESS; +} + +csi_status_t +csi_dictionary_get (csi_t *ctx, + csi_dictionary_t *dict, + csi_name_t name, + csi_object_t *value) +{ + csi_dictionary_entry_t *entry; + + entry = _csi_hash_table_lookup (&dict->hash_table, + (csi_hash_entry_t *) &name); + if (_csi_unlikely (entry == NULL)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + *value = entry->value; + return CSI_STATUS_SUCCESS; +} + +csi_boolean_t +csi_dictionary_has (csi_dictionary_t *dict, + csi_name_t name) +{ + return _csi_hash_table_lookup (&dict->hash_table, + (csi_hash_entry_t *) &name) != NULL; +} + +void +csi_dictionary_remove (csi_t *ctx, + csi_dictionary_t *dict, + csi_name_t name) +{ + csi_dictionary_entry_t *entry; + + entry = _csi_hash_table_lookup (&dict->hash_table, + (csi_hash_entry_t *) &name); + if (entry != NULL) { + _csi_hash_table_remove (&dict->hash_table, &entry->hash_entry); + csi_object_free (ctx, &entry->value); + _csi_slab_free (ctx, entry, sizeof (csi_dictionary_entry_t)); + } +} + +csi_status_t +csi_matrix_new (csi_t *ctx, + csi_object_t *obj) +{ + csi_matrix_t *matrix; + + matrix = _csi_slab_alloc (ctx, sizeof (csi_matrix_t)); + if (_csi_unlikely (matrix == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + + matrix->base.type = CSI_OBJECT_TYPE_MATRIX; + matrix->base.ref = 1; + cairo_matrix_init_identity (&matrix->matrix); + + obj->type = CSI_OBJECT_TYPE_MATRIX; + obj->datum.matrix = matrix; + + return CSI_STATUS_SUCCESS; +} + +csi_status_t +csi_matrix_new_from_array (csi_t *ctx, + csi_object_t *obj, + csi_array_t *array) +{ + csi_matrix_t *matrix; + + if (_csi_unlikely (array->stack.len != 6)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + matrix = _csi_slab_alloc (ctx, sizeof (csi_matrix_t)); + if (_csi_unlikely (matrix == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + + matrix->base.type = CSI_OBJECT_TYPE_MATRIX; + matrix->base.ref = 1; + cairo_matrix_init (&matrix->matrix, + csi_number_get_value (&array->stack.objects[0]), + csi_number_get_value (&array->stack.objects[1]), + csi_number_get_value (&array->stack.objects[2]), + csi_number_get_value (&array->stack.objects[3]), + csi_number_get_value (&array->stack.objects[4]), + csi_number_get_value (&array->stack.objects[5])); + + obj->type = CSI_OBJECT_TYPE_MATRIX; + obj->datum.matrix = matrix; + + return CSI_STATUS_SUCCESS; +} + +csi_status_t +csi_matrix_new_from_matrix (csi_t *ctx, + csi_object_t *obj, + const cairo_matrix_t *m) +{ + csi_matrix_t *matrix; + + matrix = _csi_slab_alloc (ctx, sizeof (csi_matrix_t)); + if (_csi_unlikely (matrix == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + + matrix->base.type = CSI_OBJECT_TYPE_MATRIX; + matrix->base.ref = 1; + matrix->matrix = *m; + + obj->type = CSI_OBJECT_TYPE_MATRIX; + obj->datum.matrix = matrix; + + return CSI_STATUS_SUCCESS; +} + +csi_status_t +csi_matrix_new_from_values (csi_t *ctx, + csi_object_t *obj, + double v[6]) +{ + csi_matrix_t *matrix; + + matrix = _csi_slab_alloc (ctx, sizeof (csi_matrix_t)); + if (_csi_unlikely (matrix == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + + matrix->base.type = CSI_OBJECT_TYPE_MATRIX; + matrix->base.ref = 1; + cairo_matrix_init (&matrix->matrix, v[0], v[1], v[2], v[3], v[4], v[5]); + + obj->type = CSI_OBJECT_TYPE_MATRIX; + obj->datum.matrix = matrix; + + return CSI_STATUS_SUCCESS; +} + +void +csi_matrix_free (csi_t *ctx, + csi_matrix_t *obj) +{ + _csi_slab_free (ctx, obj, sizeof (csi_matrix_t)); +} + + +csi_status_t +csi_name_new (csi_t *ctx, + csi_object_t *obj, + const char *str, + int len) +{ + csi_status_t status; + + status = _csi_intern_string (ctx, &str, len); + if (_csi_unlikely (status)) + return status; + + obj->type = CSI_OBJECT_TYPE_NAME; + obj->datum.name = (csi_name_t) str; + + return CSI_STATUS_SUCCESS; +} + +csi_status_t +csi_name_new_static (csi_t *ctx, + csi_object_t *obj, + const char *str) +{ + csi_status_t status; + + status = _csi_intern_string (ctx, &str, strlen (str)); + if (_csi_unlikely (status)) + return status; + + obj->type = CSI_OBJECT_TYPE_NAME; + obj->datum.name = (csi_name_t) str; + + return CSI_STATUS_SUCCESS; +} + +csi_status_t +csi_string_new (csi_t *ctx, + csi_object_t *obj, + const char *str, + int len) +{ + csi_string_t *string; + + if (len < 0) + len = strlen (str); + if (_csi_unlikely (len >= INT_MAX)) + return _csi_error (CSI_STATUS_NO_MEMORY); + + if (ctx->free_string == NULL || ctx->free_string->len <= len) { + string = _csi_slab_alloc (ctx, sizeof (csi_string_t)); + if (_csi_unlikely (string == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + + string->string = _csi_alloc (ctx, len + 1); + if (_csi_unlikely (string->string == NULL)) { + _csi_slab_free (ctx, string, sizeof (csi_string_t)); + return _csi_error (CSI_STATUS_NO_MEMORY); + } + } else { + string = ctx->free_string; + ctx->free_string = NULL; + } + + if (str != NULL) { + memcpy (string->string, str, len); + string->string[len] = '\0'; + } + string->len = len; + string->deflate = 0; + string->method = NONE; + + string->base.type = CSI_OBJECT_TYPE_STRING; + string->base.ref = 1; + + obj->type = CSI_OBJECT_TYPE_STRING; + obj->datum.string = string; + + return CSI_STATUS_SUCCESS; +} + +csi_status_t +csi_string_deflate_new (csi_t *ctx, + csi_object_t *obj, + void *bytes, + int in_len, + int out_len) +{ + csi_status_t status; + csi_string_t *string; + + status = csi_string_new (ctx, obj, bytes, in_len); + if (_csi_unlikely (status)) + return status; + + string = obj->datum.string; + string->deflate = out_len; + string->method = ZLIB; + + return CSI_STATUS_SUCCESS; +} + +csi_status_t +csi_string_new_from_bytes (csi_t *ctx, + csi_object_t *obj, + char *bytes, + unsigned int len) +{ + csi_string_t *string; + + if (_csi_unlikely (len >= INT_MAX)) + return _csi_error (CSI_STATUS_NO_MEMORY); + + string = _csi_slab_alloc (ctx, sizeof (csi_string_t)); + if (_csi_unlikely (string == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + + string->string = bytes; + string->len = len; + string->deflate = 0; + string->method = NONE; + + string->base.type = CSI_OBJECT_TYPE_STRING; + string->base.ref = 1; + + obj->type = CSI_OBJECT_TYPE_STRING; + obj->datum.string = string; + + return CSI_STATUS_SUCCESS; +} + +static inline csi_status_t +_csi_string_execute (csi_t *ctx, csi_string_t *string) +{ + csi_status_t status; + csi_object_t obj; + + if (_csi_unlikely (string->len == 0)) + return CSI_STATUS_SUCCESS; + + status = csi_file_new_for_bytes (ctx, &obj, string->string, string->len); + if (_csi_unlikely (status)) + return status; + + status = _csi_scan_file (ctx, obj.datum.file); + csi_object_free (ctx, &obj); + + return status; +} + +void +csi_string_free (csi_t *ctx, csi_string_t *string) +{ +#if CSI_DEBUG_MALLOC + _csi_free (ctx, string->string); + _csi_slab_free (ctx, string, sizeof (csi_string_t)); +#else + if (ctx->free_string != NULL) { + if (string->len > ctx->free_string->len) { + csi_string_t *tmp = ctx->free_string; + ctx->free_string = string; + string = tmp; + } + + _csi_free (ctx, string->string); + _csi_slab_free (ctx, string, sizeof (csi_string_t)); + } else + ctx->free_string = string; +#endif +} + +csi_status_t +csi_object_execute (csi_t *ctx, csi_object_t *obj) +{ + csi_status_t status; + csi_object_t indirect; + + INDIRECT: + switch (obj->type & CSI_OBJECT_TYPE_MASK) { + case CSI_OBJECT_TYPE_NAME: + status = _csi_name_lookup (ctx, obj->datum.name, &indirect); + if (_csi_unlikely (status)) + return status; + if (indirect.type & CSI_OBJECT_ATTR_EXECUTABLE) { + obj = &indirect; + goto INDIRECT; + } else + return _csi_push_ostack_copy (ctx, &indirect); + + case CSI_OBJECT_TYPE_OPERATOR: + return obj->datum.op (ctx); + + case CSI_OBJECT_TYPE_ARRAY: + return _csi_array_execute (ctx, obj->datum.array); + case CSI_OBJECT_TYPE_FILE: + return _csi_file_execute (ctx, obj->datum.file); + case CSI_OBJECT_TYPE_STRING: + return _csi_string_execute (ctx, obj->datum.string); + + default: + return _csi_push_ostack_copy (ctx, obj); + } +} + +csi_object_t * +csi_object_reference (csi_object_t *obj) +{ + if (CSI_OBJECT_IS_CAIRO (obj)) { + switch (obj->type & CSI_OBJECT_TYPE_MASK) { + case CSI_OBJECT_TYPE_CONTEXT: + cairo_reference (obj->datum.cr); + break; + case CSI_OBJECT_TYPE_FONT: + cairo_font_face_reference (obj->datum.font_face); + break; + case CSI_OBJECT_TYPE_PATTERN: + cairo_pattern_reference (obj->datum.pattern); + break; + case CSI_OBJECT_TYPE_SCALED_FONT: + cairo_scaled_font_reference (obj->datum.scaled_font); + break; + case CSI_OBJECT_TYPE_SURFACE: + cairo_surface_reference (obj->datum.surface); + break; + } + } else if (CSI_OBJECT_IS_COMPOUND (obj)) { + obj->datum.object->ref++; + } + + return obj; +} + +void +csi_object_free (csi_t *ctx, + csi_object_t *obj) +{ + if (CSI_OBJECT_IS_CAIRO (obj)) { + switch (obj->type & CSI_OBJECT_TYPE_MASK) { + case CSI_OBJECT_TYPE_CONTEXT: + cairo_destroy (obj->datum.cr); + break; + case CSI_OBJECT_TYPE_FONT: + cairo_font_face_destroy (obj->datum.font_face); + break; + case CSI_OBJECT_TYPE_PATTERN: + cairo_pattern_destroy (obj->datum.pattern); + break; + case CSI_OBJECT_TYPE_SCALED_FONT: + cairo_scaled_font_destroy (obj->datum.scaled_font); + break; + case CSI_OBJECT_TYPE_SURFACE: + cairo_surface_destroy (obj->datum.surface); + break; + } + } else if (CSI_OBJECT_IS_COMPOUND (obj)) { + if (--obj->datum.object->ref) + return; + + switch (obj->type & CSI_OBJECT_TYPE_MASK) { + case CSI_OBJECT_TYPE_ARRAY: + csi_array_free (ctx, obj->datum.array); + break; + case CSI_OBJECT_TYPE_DICTIONARY: + csi_dictionary_free (ctx, obj->datum.dictionary); + break; + case CSI_OBJECT_TYPE_FILE: + _csi_file_free (ctx, obj->datum.file); + break; + case CSI_OBJECT_TYPE_MATRIX: + csi_matrix_free (ctx, obj->datum.matrix); + break; + case CSI_OBJECT_TYPE_STRING: + csi_string_free (ctx, obj->datum.string); + break; + default: + break; + } + } +} + +csi_status_t +csi_object_as_file (csi_t *ctx, + csi_object_t *src, + csi_object_t *file) +{ + int type = csi_object_get_type (src); + switch (type) { + case CSI_OBJECT_TYPE_FILE: + *file = *csi_object_reference (src); + return CSI_STATUS_SUCCESS; + case CSI_OBJECT_TYPE_STRING: + return csi_file_new_from_string (ctx, file, src->datum.string); + case CSI_OBJECT_TYPE_ARRAY: +#if 0 + if (src->type & CSI_OBJECT_ATTR_EXECUTABLE) + return _csi_file_new_from_procedure (cs, src); +#endif + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } +} + +static int +lexcmp (void const *a, size_t alen, + void const *b, size_t blen) +{ + size_t len = alen < blen ? alen : blen; + int cmp = memcmp (a, b, len); + if (cmp) + return cmp; + if (alen == blen) + return 0; + return alen < blen ? -1 : +1; +} + +csi_boolean_t +csi_object_eq (csi_object_t *a, + csi_object_t *b) +{ + csi_object_type_t atype = csi_object_get_type (a); + csi_object_type_t btype = csi_object_get_type (b); + + if (atype == btype) { + switch (atype) { + case CSI_OBJECT_TYPE_BOOLEAN: + return a->datum.boolean == b->datum.boolean; + case CSI_OBJECT_TYPE_INTEGER: + return a->datum.integer == b->datum.integer; + case CSI_OBJECT_TYPE_REAL: + return a->datum.real == b->datum.real; + case CSI_OBJECT_TYPE_NAME: + return a->datum.name == b->datum.name; + case CSI_OBJECT_TYPE_STRING: + return 0 == lexcmp (a->datum.string->string, + a->datum.string->len, + b->datum.string->string, + b->datum.string->len); + case CSI_OBJECT_TYPE_NULL: + case CSI_OBJECT_TYPE_MARK: + return TRUE; + case CSI_OBJECT_TYPE_OPERATOR: + return a->datum.op == b->datum.op; + case CSI_OBJECT_TYPE_ARRAY: + case CSI_OBJECT_TYPE_DICTIONARY: + case CSI_OBJECT_TYPE_FILE: + case CSI_OBJECT_TYPE_MATRIX: + case CSI_OBJECT_TYPE_CONTEXT: + case CSI_OBJECT_TYPE_FONT: + case CSI_OBJECT_TYPE_PATTERN: + case CSI_OBJECT_TYPE_SCALED_FONT: + case CSI_OBJECT_TYPE_SURFACE: + return a->datum.ptr == b->datum.ptr; + } + } + + if (atype < btype) { + csi_object_t *c; + csi_object_type_t ctype; + c = a; a = b; b = c; + ctype = atype; atype = btype; btype = ctype; + } + + switch ((int) atype) { + case CSI_OBJECT_TYPE_INTEGER: + if (btype == CSI_OBJECT_TYPE_BOOLEAN) { + return a->datum.integer == b->datum.boolean; + } + break; + case CSI_OBJECT_TYPE_REAL: + if (btype == CSI_OBJECT_TYPE_INTEGER) { + return a->datum.real == b->datum.integer; + } + else if (btype == CSI_OBJECT_TYPE_BOOLEAN) { + return a->datum.real == b->datum.boolean; + } + break; + + case CSI_OBJECT_TYPE_STRING: + if (btype == CSI_OBJECT_TYPE_NAME) { + const char *bstr = (const char *) b->datum.name; + return 0 == lexcmp (a->datum.string->string, + a->datum.string->len, + bstr, + strlen (bstr)); + } + break; + + default: + break; + } + + return FALSE; +} + +csi_status_t +csi_object_compare (csi_object_t *a, + csi_object_t *b, + int *out) +{ + csi_object_type_t atype = csi_object_get_type (a); + csi_object_type_t btype = csi_object_get_type (b); + int sign; + + if (csi_object_eq (a, b)){ + *out = 0; + return CSI_STATUS_SUCCESS; + } + +#define CMP(x,y) ((x) < (y) ? -1 : +1) + + if (atype == btype) { + switch (atype) { + case CSI_OBJECT_TYPE_BOOLEAN: + *out = CMP (a->datum.boolean, b->datum.boolean); + return CSI_STATUS_SUCCESS; + case CSI_OBJECT_TYPE_INTEGER: + *out = CMP (a->datum.integer, b->datum.integer); + return CSI_STATUS_SUCCESS; + case CSI_OBJECT_TYPE_REAL: + *out = CMP (a->datum.real, b->datum.real); + return CSI_STATUS_SUCCESS; + case CSI_OBJECT_TYPE_NAME: { + const char *x = (char const *) a->datum.name; + const char *y = (char const *) b->datum.name; + *out = lexcmp (x, strlen(x), y, strlen (y)); + return CSI_STATUS_SUCCESS; + } + case CSI_OBJECT_TYPE_STRING: + *out = lexcmp (a->datum.string->string, + a->datum.string->len, + b->datum.string->string, + b->datum.string->len); + return CSI_STATUS_SUCCESS; + case CSI_OBJECT_TYPE_NULL: + case CSI_OBJECT_TYPE_MARK: + case CSI_OBJECT_TYPE_OPERATOR: + case CSI_OBJECT_TYPE_ARRAY: + case CSI_OBJECT_TYPE_DICTIONARY: + case CSI_OBJECT_TYPE_FILE: + case CSI_OBJECT_TYPE_MATRIX: + case CSI_OBJECT_TYPE_CONTEXT: + case CSI_OBJECT_TYPE_FONT: + case CSI_OBJECT_TYPE_PATTERN: + case CSI_OBJECT_TYPE_SCALED_FONT: + case CSI_OBJECT_TYPE_SURFACE: + goto TYPE_CHECK_ERROR; + } + } + + sign = +1; + if (atype < btype) { + csi_object_t *c; + csi_object_type_t ctype; + c = a; a = b; b = c; + ctype = atype; atype = btype; btype = ctype; + sign = -1; + } + + switch ((int) atype) { + case CSI_OBJECT_TYPE_INTEGER: + if (btype == CSI_OBJECT_TYPE_BOOLEAN) { + *out = sign * CMP (a->datum.integer, !!b->datum.boolean); + return CSI_STATUS_SUCCESS; + } + break; + case CSI_OBJECT_TYPE_REAL: + if (btype == CSI_OBJECT_TYPE_INTEGER) { + *out = sign * CMP (a->datum.real, b->datum.integer); + return CSI_STATUS_SUCCESS; + } + else if (btype == CSI_OBJECT_TYPE_BOOLEAN) { + *out = sign * CMP (a->datum.real, !!b->datum.boolean); + return CSI_STATUS_SUCCESS; + } + break; + + case CSI_OBJECT_TYPE_STRING: + if (btype == CSI_OBJECT_TYPE_NAME) { + const char *bstr = (const char *) b->datum.name; + *out = sign * lexcmp (a->datum.string->string, + a->datum.string->len, + bstr, + strlen (bstr)); + return CSI_STATUS_SUCCESS; + } + break; + + default: + break; + } + +#undef CMP + + TYPE_CHECK_ERROR: + return _csi_error (CSI_STATUS_SCRIPT_INVALID_TYPE); +} diff --git a/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-operators.c b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-operators.c new file mode 100644 index 0000000000..a5eca6ffca --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-operators.c @@ -0,0 +1,6831 @@ +/* + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + */ + +#include "config.h" + +/* TODO real path type */ + +#include "cairo-script-private.h" + +#if CAIRO_HAS_SCRIPT_SURFACE +#include "cairo-script.h" +#endif + +#include /* snprintf */ +#include /* mkstemp */ +#include + +#ifdef _MSC_VER +#define _USE_MATH_DEFINES /* for M_LN2, M_PI and M_SQRT2 on win32 */ +#define snprintf _snprintf +#endif + +#include +#include /* INT_MAX */ +#include + +#if HAVE_ZLIB +#include +#endif + +#if HAVE_LZO +#include +#endif + +#ifdef HAVE_MMAP +# ifdef HAVE_UNISTD_H +# include +# include +# else +# undef HAVE_MMAP +# endif +#endif + +typedef struct _csi_proxy { + csi_t *ctx; + void *ptr; + csi_dictionary_t *dictionary; + csi_destroy_func_t destroy_func; + void *destroy_data; +} csi_proxy_t; + +typedef struct _csi_blob { + csi_list_t list; + unsigned long hash; + uint8_t *bytes; + unsigned int len; +} csi_blob_t; + +static const cairo_user_data_key_t _csi_proxy_key; +static const cairo_user_data_key_t _csi_blob_key; + +enum mime_type { + MIME_TYPE_NONE = 0, + MIME_TYPE_PNG +}; + +#define check(CNT) do {\ + if (_csi_unlikely (! _csi_check_ostack (ctx, (CNT)))) \ + return _csi_error (CSI_STATUS_INVALID_SCRIPT); \ +} while (0) +#define pop(CNT) _csi_pop_ostack (ctx, (CNT)) +#define push(OBJ) _csi_push_ostack (ctx, (OBJ)) + +static csi_proxy_t * +_csi_proxy_create (csi_t *ctx, + void *ptr, + csi_dictionary_t *dictionary, + csi_destroy_func_t destroy_func, + void *destroy_data) +{ + csi_proxy_t *proxy; + + proxy = _csi_slab_alloc (ctx, sizeof (csi_proxy_t)); + if (proxy == NULL) + return NULL; + + proxy->ctx = cairo_script_interpreter_reference (ctx); + proxy->ptr = ptr; + proxy->destroy_func = destroy_func; + proxy->destroy_data = destroy_data; + proxy->dictionary = dictionary; + if (dictionary != NULL) + dictionary->base.ref++; + + return proxy; +} + +static void +_csi_proxy_destroy (void *closure) +{ + csi_proxy_t *proxy = closure; + csi_t *ctx = proxy->ctx; + + /* XXX this doesn't work because user_data_destroy is called too late. + * Considering another hook into the (cairo internal) object system. + */ + if (proxy->destroy_func != NULL) + proxy->destroy_func (proxy->destroy_data, proxy->ptr); + + if (proxy->dictionary != NULL && --proxy->dictionary->base.ref == 0) + csi_dictionary_free (ctx, proxy->dictionary); + + _csi_slab_free (ctx, proxy, sizeof (csi_proxy_t)); + cairo_script_interpreter_destroy (ctx); +} + +static void +_csi_blob_hash (csi_blob_t *blob, const uint32_t *data, int len) +{ + unsigned long hash = blob->hash; + /* very simple! */ + while (len--) { + unsigned long c = *data++; + hash *= 33; + hash ^= c; + } + blob->hash = hash; +} + +static csi_boolean_t +_csi_blob_equal (const csi_list_t *link, void *data) +{ + csi_blob_t *A, *B; + + A = csi_container_of (link, csi_blob_t, list); + B = data; + + if (A->len != B->len) + return FALSE; + + if (A->hash != B->hash) + return FALSE; + + return memcmp (A->bytes, B->bytes, A->len) == 0; +} + +static void +_csi_blob_init (csi_blob_t *blob, uint8_t *bytes, int len) +{ + blob->hash = 5381; + blob->len = len; + blob->bytes = bytes; +} + +static csi_list_t * +_csi_list_unlink (csi_list_t *head, csi_list_t *link) +{ + if (link->next != NULL) + link->next->prev = link->prev; + if (link->prev != NULL) + link->prev->next = link->next; + else + head = link->next; + return head; +} + +static csi_list_t * +_csi_list_prepend (csi_list_t *head, csi_list_t *link) +{ + if (head != NULL) + head->prev = link; + link->next = head; + link->prev = NULL; + return link; +} + +static csi_list_t * +_csi_list_find (csi_list_t *head, + csi_boolean_t (*predicate) (const csi_list_t *link, void *data), + void *data) +{ + while (head != NULL) { + if (predicate (head, data)) + return head; + head = head->next; + } + + return NULL; +} + +static csi_status_t +_csi_ostack_get_boolean (csi_t *ctx, unsigned int i, csi_boolean_t *out) +{ + csi_object_t *obj; + int type; + + obj = _csi_peek_ostack (ctx, i); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_BOOLEAN: + *out = obj->datum.boolean; + break; + case CSI_OBJECT_TYPE_INTEGER: + *out = !! obj->datum.integer; + break; + case CSI_OBJECT_TYPE_REAL: + *out = obj->datum.real != 0.; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_csi_ostack_get_integer (csi_t *ctx, unsigned int i, csi_integer_t *out) +{ + csi_object_t *obj; + int type; + + obj = _csi_peek_ostack (ctx, i); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_BOOLEAN: + *out = obj->datum.boolean; + break; + case CSI_OBJECT_TYPE_INTEGER: + *out = obj->datum.integer; + break; + case CSI_OBJECT_TYPE_REAL: + *out = obj->datum.real; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_csi_ostack_get_number (csi_t *ctx, unsigned int i, double *out) +{ + csi_object_t *obj; + int type; + + obj = _csi_peek_ostack (ctx, i); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_BOOLEAN: + *out = obj->datum.boolean; + break; + case CSI_OBJECT_TYPE_INTEGER: + *out = obj->datum.integer; + break; + case CSI_OBJECT_TYPE_REAL: + *out = obj->datum.real; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + return CSI_STATUS_SUCCESS; +} + +static double +_csi_object_as_real (csi_object_t *obj) +{ + int type; + + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_BOOLEAN: + return obj->datum.boolean; + case CSI_OBJECT_TYPE_INTEGER: + return obj->datum.integer; + case CSI_OBJECT_TYPE_REAL: + return obj->datum.real; + default: + return 0; + } +} + +static csi_status_t +_csi_ostack_get_name (csi_t *ctx, unsigned int i, csi_name_t *out) +{ + csi_object_t *obj; + + obj = _csi_peek_ostack (ctx, i); + if (_csi_unlikely (csi_object_get_type (obj) != CSI_OBJECT_TYPE_NAME)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + *out = obj->datum.name; + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_csi_ostack_get_context (csi_t *ctx, unsigned int i, cairo_t **out) +{ + csi_object_t *obj; + + obj = _csi_peek_ostack (ctx, i); + if (_csi_unlikely (csi_object_get_type (obj) != CSI_OBJECT_TYPE_CONTEXT)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + *out = obj->datum.cr; + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_csi_ostack_get_font_face (csi_t *ctx, unsigned int i, cairo_font_face_t **out) +{ + csi_object_t *obj; + + obj = _csi_peek_ostack (ctx, i); + if (_csi_unlikely (csi_object_get_type (obj) != CSI_OBJECT_TYPE_FONT)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + *out = obj->datum.font_face; + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_csi_ostack_get_pattern (csi_t *ctx, unsigned int i, cairo_pattern_t **out) +{ + csi_object_t *obj; + + obj = _csi_peek_ostack (ctx, i); + if (_csi_unlikely (csi_object_get_type (obj) != CSI_OBJECT_TYPE_PATTERN)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + *out = obj->datum.pattern; + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_csi_ostack_get_scaled_font (csi_t *ctx, unsigned int i, + cairo_scaled_font_t **out) +{ + csi_object_t *obj; + + obj = _csi_peek_ostack (ctx, i); + if (_csi_unlikely + (csi_object_get_type (obj) != CSI_OBJECT_TYPE_SCALED_FONT)) + { + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + *out = obj->datum.scaled_font; + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_csi_ostack_get_surface (csi_t *ctx, unsigned int i, cairo_surface_t **out) +{ + csi_object_t *obj; + int type; + + obj = _csi_peek_ostack (ctx, i); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_CONTEXT: + *out = cairo_get_target (obj->datum.cr); + break; + case CSI_OBJECT_TYPE_SURFACE: + *out = obj->datum.surface; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_csi_ostack_get_array (csi_t *ctx, unsigned int i, csi_array_t **out) +{ + csi_object_t *obj; + + obj = _csi_peek_ostack (ctx, i); + if (_csi_unlikely (csi_object_get_type (obj) != CSI_OBJECT_TYPE_ARRAY)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + *out = obj->datum.array; + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_csi_ostack_get_procedure (csi_t *ctx, unsigned int i, csi_array_t **out) +{ + csi_object_t *obj; + + obj = _csi_peek_ostack (ctx, i); + if (_csi_unlikely (! csi_object_is_procedure (obj))) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + *out = obj->datum.array; + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_csi_ostack_get_dictionary (csi_t *ctx, unsigned int i, csi_dictionary_t **out) +{ + csi_object_t *obj; + + obj = _csi_peek_ostack (ctx, i); + if (_csi_unlikely + (csi_object_get_type (obj) != CSI_OBJECT_TYPE_DICTIONARY)) + { + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + *out = obj->datum.dictionary; + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_csi_ostack_get_matrix (csi_t *ctx, unsigned int i, cairo_matrix_t *out) +{ + csi_object_t *obj; + int type; + + obj = _csi_peek_ostack (ctx, i); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_MATRIX: + *out = obj->datum.matrix->matrix; + return CSI_STATUS_SUCCESS; + + case CSI_OBJECT_TYPE_ARRAY: + if (obj->datum.array->stack.len == 6) { + cairo_matrix_init (out, + csi_number_get_value (&obj->datum.array->stack.objects[0]), + csi_number_get_value (&obj->datum.array->stack.objects[1]), + csi_number_get_value (&obj->datum.array->stack.objects[2]), + csi_number_get_value (&obj->datum.array->stack.objects[3]), + csi_number_get_value (&obj->datum.array->stack.objects[4]), + csi_number_get_value (&obj->datum.array->stack.objects[5])); + return CSI_STATUS_SUCCESS; + } + /* else fall through */ + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } +} + +static csi_status_t +_csi_dictionary_get_integer (csi_t *ctx, + csi_dictionary_t *dict, + const char *name, + csi_boolean_t optional, + long *value) +{ + csi_status_t status; + csi_object_t key, obj; + int type; + + status = csi_name_new_static (ctx, &key, name); + if (_csi_unlikely (status)) + return status; + + if (optional && ! csi_dictionary_has (dict, key.datum.name)) + return CSI_STATUS_SUCCESS; + + status = csi_dictionary_get (ctx, dict, key.datum.name, &obj); + if (_csi_unlikely (status)) + return status; + + type = csi_object_get_type (&obj); + switch (type) { + case CSI_OBJECT_TYPE_BOOLEAN: + *value = obj.datum.boolean; + break; + case CSI_OBJECT_TYPE_INTEGER: + *value = obj.datum.integer; + break; + case CSI_OBJECT_TYPE_REAL: + *value = obj.datum.real; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_csi_dictionary_get_number (csi_t *ctx, + csi_dictionary_t *dict, + const char *name, + csi_boolean_t optional, + double *value) +{ + csi_status_t status; + csi_object_t key, obj; + + status = csi_name_new_static (ctx, &key, name); + if (_csi_unlikely (status)) + return status; + + if (optional && ! csi_dictionary_has (dict, key.datum.name)) + return CSI_STATUS_SUCCESS; + + status = csi_dictionary_get (ctx, dict, key.datum.name, &obj); + if (_csi_unlikely (status)) + return status; + + *value = csi_number_get_value (&obj); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_csi_ostack_get_string (csi_t *ctx, unsigned int i, csi_string_t **out) +{ + csi_object_t *obj; + + obj = _csi_peek_ostack (ctx, i); + if (_csi_unlikely (csi_object_get_type (obj) != CSI_OBJECT_TYPE_STRING)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + *out = obj->datum.string; + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_csi_ostack_get_string_constant (csi_t *ctx, unsigned int i, const char **out) +{ + csi_object_t *obj; + int type; + + obj = _csi_peek_ostack (ctx, i); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_NAME: + *out = (const char *) obj->datum.name; + break; + case CSI_OBJECT_TYPE_STRING: + *out = obj->datum.string->string; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_do_cairo_op (csi_t *ctx, void (*op) (cairo_t *)) +{ + cairo_t *cr; + csi_status_t status; + + check (1); + + status = _csi_ostack_get_context (ctx, 0, &cr); + if (_csi_unlikely (status)) + return status; + + op (cr); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +end_dict_construction (csi_t *ctx) +{ + csi_object_t obj; + csi_dictionary_t *dict; + csi_status_t status; + + status = csi_dictionary_new (ctx, &obj); + if (_csi_unlikely (status)) + return status; + + dict = obj.datum.dictionary; + do { + csi_object_t *name, *value; + + check (1); + + value = _csi_peek_ostack (ctx, 0); + if (csi_object_get_type (value) == CSI_OBJECT_TYPE_MARK) { + pop (1); + break; + } + + check (2); + + name = _csi_peek_ostack (ctx, 1); + if (_csi_unlikely + (csi_object_get_type (name) != CSI_OBJECT_TYPE_NAME)) + { + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + status = csi_dictionary_put (ctx, dict, name->datum.name, value); + if (_csi_unlikely (status)) + return status; + + pop (2); + } while (TRUE); + + return push (&obj); +} + +static csi_status_t +end_array_construction (csi_t *ctx) +{ + csi_object_t obj; + csi_status_t status; + int len = 0; + + do { + check (len + 1); + + if (csi_object_get_type (_csi_peek_ostack (ctx, len)) == + CSI_OBJECT_TYPE_MARK) + { + break; + } + + len++; + } while (TRUE); + + status = csi_array_new (ctx, len, &obj); + if (_csi_unlikely (status)) + return status; + + if (len != 0) { + csi_array_t *array; + + array = obj.datum.array; + memcpy (array->stack.objects, + _csi_peek_ostack (ctx, len - 1), + sizeof (csi_object_t) * len); + array->stack.len = len; + } + ctx->ostack.len -= len + 1; + + return push (&obj); +} + +static csi_status_t +_alpha (csi_t *ctx) +{ + csi_object_t obj; + csi_status_t status; + double a; + + check (1); + + status = _csi_ostack_get_number (ctx, 0, &a); + if (_csi_unlikely (status)) + return status; + + pop (1); + + obj.type = CSI_OBJECT_TYPE_PATTERN; + obj.datum.pattern = cairo_pattern_create_rgba (0, 0, 0, a); + return push (&obj); +} + +static csi_status_t +_add (csi_t *ctx) +{ + csi_object_t *A; + csi_object_t *B; + csi_object_type_t type_a, type_b; + + check (2); + + B = _csi_peek_ostack (ctx, 0); + A = _csi_peek_ostack (ctx, 1); + + type_a = csi_object_get_type (A); + if (_csi_unlikely (! (type_a == CSI_OBJECT_TYPE_INTEGER || + type_a == CSI_OBJECT_TYPE_REAL))) + { + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + type_b = csi_object_get_type (B); + if (_csi_unlikely (! (type_b == CSI_OBJECT_TYPE_INTEGER || + type_b == CSI_OBJECT_TYPE_REAL))) + { + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (2); + + if (type_a == CSI_OBJECT_TYPE_REAL && + type_b == CSI_OBJECT_TYPE_REAL) + { + return _csi_push_ostack_real (ctx, A->datum.real + B->datum.real); + + } + else if (type_a == CSI_OBJECT_TYPE_INTEGER && + type_b == CSI_OBJECT_TYPE_INTEGER) + { + return _csi_push_ostack_integer (ctx, + A->datum.integer + B->datum.integer); + } + else + { + double v; + + if (type_a == CSI_OBJECT_TYPE_REAL) + v = A->datum.real; + else + v = A->datum.integer; + + if (type_b == CSI_OBJECT_TYPE_REAL) + v += B->datum.real; + else + v += B->datum.integer; + + return _csi_push_ostack_real (ctx, v); + } +} + +static csi_status_t +_add_color_stop (csi_t *ctx) +{ + csi_status_t status; + double offset, r, g, b, a; + cairo_pattern_t *pattern = NULL; /* silence the compiler */ + + check (6); + + status = _csi_ostack_get_number (ctx, 0, &a); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &b); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &g); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 3, &r); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 4, &offset); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_pattern (ctx, 5, &pattern); + if (_csi_unlikely (status)) + return status; + + cairo_pattern_add_color_stop_rgba (pattern, offset, r, g, b, a); + + pop (5); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_and (csi_t *ctx) +{ + csi_object_t *a, *b; + int type; + + check (2); + + a = _csi_peek_ostack (ctx, 0); + b = _csi_peek_ostack (ctx, 1); + if (_csi_unlikely (csi_object_get_type (a) != csi_object_get_type (b))) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + pop (2); + type = csi_object_get_type (a); + switch (type) { + case CSI_OBJECT_TYPE_INTEGER: + return _csi_push_ostack_integer (ctx, + a->datum.integer & b->datum.integer); + case CSI_OBJECT_TYPE_BOOLEAN: + return _csi_push_ostack_boolean (ctx, + a->datum.boolean & b->datum.boolean); + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } +} + +static csi_status_t +_arc (csi_t *ctx) +{ + csi_status_t status; + double x, y, r; + double theta1, theta2; + cairo_t *cr; + + check (6); + + status = _csi_ostack_get_number (ctx, 0, &theta2); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &theta1); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &r); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 3, &y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 4, &x); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 5, &cr); + if (_csi_unlikely (status)) + return status; + + /* XXX handle path object */ + + cairo_arc (cr, x, y, r, theta1, theta2); + pop (5); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_arc_negative (csi_t *ctx) +{ + csi_status_t status; + double x, y, r; + double theta1, theta2; + cairo_t *cr; + + check (6); + + status = _csi_ostack_get_number (ctx, 0, &theta2); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &theta1); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &r); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 3, &y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 4, &x); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 5, &cr); + if (_csi_unlikely (status)) + return status; + + /* XXX handle path object */ + + cairo_arc_negative (cr, x, y, r, theta1, theta2); + pop (5); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_array (csi_t *ctx) +{ + csi_object_t obj; + csi_status_t status; + + status = csi_array_new (ctx, 0, &obj); + if (_csi_unlikely (status)) + return status; + + return push (&obj); +} + +static csi_status_t +_bind_substitute (csi_t *ctx, csi_array_t *array) +{ + csi_status_t status; + csi_integer_t i, n; + csi_dictionary_t *dict; + + /* perform operator substitution on the executable array (procedure) */ + dict = ctx->dstack.objects[0].datum.dictionary; + n = array->stack.len; + for (i = 0; i < n; i++) { + csi_object_t *obj = &array->stack.objects[i]; + + if (obj->type == (CSI_OBJECT_TYPE_NAME | CSI_OBJECT_ATTR_EXECUTABLE)) { + csi_dictionary_entry_t *entry; + + entry = _csi_hash_table_lookup (&dict->hash_table, + (csi_hash_entry_t *) + &obj->datum.name); + if (entry != NULL) + *obj = entry->value; + } else if (csi_object_is_procedure (obj)) { + status = _bind_substitute (ctx, obj->datum.array); + if (_csi_unlikely (status)) + return status; + } + } + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_idiom_substitute (csi_t *ctx, csi_array_t *array) +{ +#if 0 + csi_status_t status; + csi_integer_t i, j; + + /* XXX substring search, build array once then search for + * longest matching idiom, repeat. */ + + /* scan the top-most array for sequences we can pre-compile */ + + /* now recurse for subroutines */ + j = array->stack.len; + for (i = 0; i < j; i++) { + csi_object_t *obj = &array->stack.objects[i]; + + if (csi_object_is_procedure (obj)) { + status = _idiom_substitute (ctx, obj->datum.array); + if (_csi_unlikely (_cairo_is_error (status)) + return status; + } + } +#endif + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_bind (csi_t *ctx) +{ + csi_array_t *array; + csi_status_t status; + + check (1); + + status = _csi_ostack_get_procedure (ctx, 0, &array); + if (_csi_unlikely (status)) + return status; + + status = _bind_substitute (ctx, array); + if (_csi_unlikely (status)) + return status; + + status = _idiom_substitute (ctx, array); + if (_csi_unlikely (status)) + return status; + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_bitshift (csi_t *ctx) +{ + long v, shift; + csi_status_t status; + + check (2); + + status = _csi_ostack_get_integer (ctx, 0, &shift); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_integer (ctx, 1, &v); + if (_csi_unlikely (status)) + return status; + + if (shift < 0) { + shift = -shift; + v >>= shift; + } else + v <<= shift; + + pop (1); + _csi_peek_ostack (ctx, 0)->datum.integer = v; + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_clip (csi_t *ctx) +{ + return _do_cairo_op (ctx, cairo_clip); +} + +static csi_status_t +_clip_preserve (csi_t *ctx) +{ + return _do_cairo_op (ctx, cairo_clip_preserve); +} + +static csi_status_t +_close_path (csi_t *ctx) +{ + return _do_cairo_op (ctx, cairo_close_path); +} + +static csi_status_t +_context (csi_t *ctx) +{ + csi_object_t obj; + csi_status_t status; + cairo_surface_t *surface; + cairo_t *cr; + csi_context_create_func_t hook; + csi_proxy_t *proxy; + + check (1); + + status = _csi_ostack_get_surface (ctx, 0, &surface); + if (_csi_unlikely (status)) + return status; + + hook = ctx->hooks.context_create; + if (hook != NULL) + cr = hook (ctx->hooks.closure, surface); + else + cr = cairo_create (surface); + + proxy = _csi_proxy_create (ctx, cr, NULL, + ctx->hooks.context_destroy, + ctx->hooks.closure); + if (_csi_unlikely (proxy == NULL)) { + cairo_destroy (cr); + return _csi_error (CSI_STATUS_NO_MEMORY); + } + + status = cairo_set_user_data (cr, &_csi_proxy_key, + proxy, _csi_proxy_destroy); + if (_csi_unlikely (status)) { + _csi_proxy_destroy (proxy); + cairo_destroy (cr); + return status; + } + + pop (1); + obj.type = CSI_OBJECT_TYPE_CONTEXT; + obj.datum.cr = cr; + return push (&obj); +} + +static csi_status_t +_copy (csi_t *ctx) +{ + csi_object_t *obj; + int type; + + check (1); + + obj = csi_object_reference (_csi_peek_ostack (ctx, 0)); + pop (1); + + type = csi_object_get_type (obj); + switch (type) { + /*XXX array, string, dictionary, etc */ + case CSI_OBJECT_TYPE_INTEGER: + { + long i, n; + + n = obj->datum.integer; + if (_csi_unlikely (n < 0)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + check (n); + + for (i = n; i--; ) { + csi_status_t status; + + status = _csi_push_ostack_copy (ctx, + _csi_peek_ostack (ctx, n-1)); + if (_csi_unlikely (status)) + return status; + } + break; + } + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_copy_page (csi_t *ctx) +{ + csi_object_t *obj; + int type; + + check (1); + + obj = _csi_peek_ostack (ctx, 0); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_CONTEXT: + cairo_copy_page (obj->datum.cr); + if (ctx->hooks.copy_page != NULL) + ctx->hooks.copy_page (ctx->hooks.closure, obj->datum.cr); + break; + case CSI_OBJECT_TYPE_SURFACE: + cairo_surface_copy_page (obj->datum.surface); + /* XXX hook? */ + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_curve_to (csi_t *ctx) +{ + csi_status_t status; + csi_object_t *obj; + int type; + double x1, y1; + double x2, y2; + double x3, y3; + + check (7); + + status = _csi_ostack_get_number (ctx, 0, &y3); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &x3); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &y2); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 3, &x2); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 4, &y1); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 5, &x1); + if (_csi_unlikely (status)) + return status; + + obj = _csi_peek_ostack (ctx, 6); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_CONTEXT: + cairo_curve_to (obj->datum.cr, x1, y1, x2, y2, x3, y3); + break; + case CSI_OBJECT_TYPE_PATTERN: + cairo_mesh_pattern_curve_to (obj->datum.pattern, + x1, y1, x2, y2, x3, y3); + break; + /* XXX handle path object */ + } + + pop (6); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_cvi (csi_t *ctx) +{ + csi_object_t *val, obj; + int type; + + check (1); + + val = _csi_peek_ostack (ctx, 0); + type = csi_object_get_type (val); + switch (type) { + case CSI_OBJECT_TYPE_INTEGER: + return CSI_STATUS_SUCCESS; + + case CSI_OBJECT_TYPE_REAL: + pop (1); + return _csi_push_ostack_integer (ctx, val->datum.real); + + case CSI_OBJECT_TYPE_STRING: + if (! _csi_parse_number (&obj, + val->datum.string->string, + val->datum.string->len)) + { + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (1); + if (csi_object_get_type (&obj) == CSI_OBJECT_TYPE_INTEGER) + return push (&obj); + else + return _csi_push_ostack_integer (ctx, obj.datum.real); + + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } +} + +static csi_status_t +_cvr (csi_t *ctx) +{ + csi_object_t *val, obj; + int type; + + check (1); + + val = _csi_peek_ostack (ctx, 0); + type = csi_object_get_type (val); + switch (type) { + case CSI_OBJECT_TYPE_REAL: + return CSI_STATUS_SUCCESS; + + case CSI_OBJECT_TYPE_INTEGER: + pop (1); + return _csi_push_ostack_real (ctx, val->datum.integer); + + case CSI_OBJECT_TYPE_STRING: + if (! _csi_parse_number (&obj, + val->datum.string->string, + val->datum.string->len)) + { + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (1); + if (csi_object_get_type (&obj) == CSI_OBJECT_TYPE_REAL) + return push (&obj); + else + return _csi_push_ostack_real (ctx, obj.datum.integer); + + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } +} + +static csi_status_t +_def (csi_t *ctx) +{ + csi_name_t name = 0; /* silence the compiler */ + csi_status_t status; + + check (2); + + status = _csi_ostack_get_name (ctx, 1, &name); + if (_csi_unlikely (status)) + return status; + + status = _csi_name_define (ctx, name, _csi_peek_ostack (ctx, 0)); + if (_csi_unlikely (status)) + return status; + + pop (2); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_dict (csi_t *ctx) +{ + csi_object_t obj; + csi_status_t status; + + status = csi_dictionary_new (ctx, &obj); + if (_csi_unlikely (status)) + return status; + + return push (&obj); +} + +static csi_status_t +_div (csi_t *ctx) +{ + csi_object_t *A; + csi_object_t *B; + csi_object_type_t type_a, type_b; + + check (2); + + B = _csi_peek_ostack (ctx, 0); + A = _csi_peek_ostack (ctx, 1); + + type_a = csi_object_get_type (A); + if (_csi_unlikely (! (type_a == CSI_OBJECT_TYPE_INTEGER || + type_a == CSI_OBJECT_TYPE_REAL))) + { + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + type_b = csi_object_get_type (B); + if (_csi_unlikely (! (type_b == CSI_OBJECT_TYPE_INTEGER || + type_b == CSI_OBJECT_TYPE_REAL))) + { + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (2); + + if (type_a == CSI_OBJECT_TYPE_REAL && + type_b == CSI_OBJECT_TYPE_REAL) + { + return _csi_push_ostack_real (ctx, A->datum.real / B->datum.real); + + } + else if (type_a == CSI_OBJECT_TYPE_INTEGER && + type_b == CSI_OBJECT_TYPE_INTEGER) + { + return _csi_push_ostack_integer (ctx, + A->datum.integer / B->datum.integer); + } + else + { + double v; + + if (type_a == CSI_OBJECT_TYPE_REAL) + v = A->datum.real; + else + v = A->datum.integer; + + if (type_b == CSI_OBJECT_TYPE_REAL) + v /= B->datum.real; + else + v /= B->datum.integer; + + return _csi_push_ostack_real (ctx, v); + } +} + +static csi_status_t +_duplicate (csi_t *ctx) +{ + check (1); + + return _csi_push_ostack_copy (ctx, _csi_peek_ostack (ctx, 0)); +} + +static csi_status_t +_eq (csi_t *ctx) +{ + csi_object_t *a, *b; + csi_boolean_t v; + + check (2); + + b = _csi_peek_ostack (ctx, 0); + a = _csi_peek_ostack (ctx, 1); + + v = csi_object_eq (a, b); + + pop (2); + return _csi_push_ostack_boolean (ctx, v); +} + +static csi_status_t +_exch (csi_t *ctx) +{ + return _csi_stack_exch (&ctx->ostack); +} + +static csi_status_t +_false (csi_t *ctx) +{ + return _csi_push_ostack_boolean (ctx, FALSE); +} + +static csi_status_t +_fill (csi_t *ctx) +{ + return _do_cairo_op (ctx, cairo_fill); +} + +static csi_status_t +_fill_preserve (csi_t *ctx) +{ + return _do_cairo_op (ctx, cairo_fill_preserve); +} + +static csi_status_t +_filter (csi_t *ctx) +{ + csi_object_t *src; + csi_dictionary_t *dict = NULL; + csi_status_t status; + const char *name = NULL; /* silence the compiler */ + const struct filters { + const char *name; + csi_status_t (*constructor) (csi_t *t, + csi_object_t *, + csi_dictionary_t *, + csi_object_t *); + } filters[] = { + { "ascii85", csi_file_new_ascii85_decode }, +#if HAVE_ZLIB + { "deflate", csi_file_new_deflate_decode }, +#endif +#if 0 + { "lzw", csi_file_new_lzw_decode }, +#endif + { NULL, NULL } + }, *filter; + int cnt; + + check (2); + + status = _csi_ostack_get_string_constant (ctx, 0, &name); + if (_csi_unlikely (status)) + return status; + + src = _csi_peek_ostack (ctx, 1); + cnt = 2; + if (csi_object_get_type (src) == CSI_OBJECT_TYPE_DICTIONARY) { + dict = src->datum.dictionary; + + check (3); + + src = _csi_peek_ostack (ctx, 2); + cnt = 3; + } + + for (filter = filters; filter->name != NULL; filter++) { + if (strcmp (name, filter->name) == 0) { + csi_object_t file; + + status = filter->constructor (ctx, &file, dict, src); + if (_csi_unlikely (status)) + return status; + + pop (cnt); + return push (&file); + } + } + + return _csi_error (CSI_STATUS_INVALID_SCRIPT); +} + +static cairo_status_t +_type3_init (cairo_scaled_font_t *scaled_font, + cairo_t *cr, + cairo_font_extents_t *metrics) +{ + cairo_font_face_t *face; + csi_proxy_t *proxy; + csi_t *ctx; + csi_dictionary_t *font; + csi_object_t key; + csi_object_t obj; + csi_array_t *array; + csi_status_t status; + + face = cairo_scaled_font_get_font_face (scaled_font); + proxy = cairo_font_face_get_user_data (face, &_csi_proxy_key); + if (_csi_unlikely (proxy == NULL)) + return CAIRO_STATUS_NO_MEMORY; + + ctx = proxy->ctx; + font = proxy->dictionary; + + status = csi_name_new_static (ctx, &key, "metrics"); + if (_csi_unlikely (status)) + return CAIRO_STATUS_NO_MEMORY; + + if (! csi_dictionary_has (font, key.datum.name)) + return CAIRO_STATUS_SUCCESS; + + status = csi_dictionary_get (ctx, font, key.datum.name, &obj); + if (_csi_unlikely (status)) + return status; + + if (csi_object_get_type (&obj) != CSI_OBJECT_TYPE_ARRAY) + return CAIRO_STATUS_USER_FONT_ERROR; + + array = obj.datum.array; + if (array->stack.len != 5) + return CAIRO_STATUS_USER_FONT_ERROR; + + metrics->ascent = csi_number_get_value (&array->stack.objects[0]); + metrics->descent = csi_number_get_value (&array->stack.objects[1]); + metrics->height = csi_number_get_value (&array->stack.objects[2]); + metrics->max_x_advance = csi_number_get_value (&array->stack.objects[3]); + metrics->max_y_advance = csi_number_get_value (&array->stack.objects[4]); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +_type3_lookup (cairo_scaled_font_t *scaled_font, + unsigned long unicode, + unsigned long *glyph) +{ + cairo_font_face_t *face; + csi_proxy_t *proxy; + csi_t *ctx; + csi_dictionary_t *font; + csi_object_t obj, key; + csi_array_t *array; + char buf[12]; + csi_integer_t i; + cairo_status_t status; + + face = cairo_scaled_font_get_font_face (scaled_font); + proxy = cairo_font_face_get_user_data (face, &_csi_proxy_key); + if (_csi_unlikely (proxy == NULL)) + return CAIRO_STATUS_USER_FONT_ERROR; + + ctx = proxy->ctx; + font = proxy->dictionary; + + status = csi_name_new_static (ctx, &key, "encoding"); + if (_csi_unlikely (status)) + return CAIRO_STATUS_USER_FONT_ERROR; + + if (! csi_dictionary_has (font, key.datum.name)) { + *glyph = unicode; + return CAIRO_STATUS_SUCCESS; + } + + status = csi_dictionary_get (ctx, font, key.datum.name, &obj); + if (_csi_unlikely (status)) + return CAIRO_STATUS_USER_FONT_ERROR; + + if (_csi_unlikely (csi_object_get_type (&obj) != CSI_OBJECT_TYPE_ARRAY)) + return CAIRO_STATUS_USER_FONT_ERROR; + + snprintf (buf, sizeof (buf), "uni%04lu", unicode); + array = obj.datum.array; + for (i = 0; i < array->stack.len; i++) { + csi_object_t *name; + + name = &array->stack.objects[i]; + if (csi_object_get_type (name) != CSI_OBJECT_TYPE_NAME) + continue; + + if (strcmp ((char *) name->datum.name, buf) == 0) { + *glyph = i; + return CAIRO_STATUS_SUCCESS; + } + } + + return CAIRO_STATUS_USER_FONT_ERROR; +} + +static cairo_status_t +_type3_render (cairo_scaled_font_t *scaled_font, + unsigned long glyph_index, + cairo_t *cr, + cairo_text_extents_t *metrics) +{ + cairo_font_face_t *face; + csi_proxy_t *proxy; + csi_t *ctx; + csi_dictionary_t *font; + csi_array_t *glyphs; + csi_object_t *glyph; + csi_object_t key; + csi_object_t obj; + csi_object_t render; + csi_status_t status; + + face = cairo_scaled_font_get_font_face (scaled_font); + proxy = cairo_font_face_get_user_data (face, &_csi_proxy_key); + if (_csi_unlikely (proxy == NULL)) + return CAIRO_STATUS_USER_FONT_ERROR; + + ctx = proxy->ctx; + font = proxy->dictionary; + + status = csi_name_new_static (ctx, &key, "glyphs"); + if (_csi_unlikely (status)) + return CAIRO_STATUS_USER_FONT_ERROR; + + status = csi_dictionary_get (ctx, font, key.datum.name, &obj); + if (_csi_unlikely (status)) + return CAIRO_STATUS_USER_FONT_ERROR; + + if (_csi_unlikely (csi_object_get_type (&obj) != CSI_OBJECT_TYPE_ARRAY)) + return CAIRO_STATUS_USER_FONT_ERROR; + + glyphs = obj.datum.array; + glyph = &glyphs->stack.objects[glyph_index]; + if (csi_object_get_type (glyph) == CSI_OBJECT_TYPE_NULL) + return CAIRO_STATUS_SUCCESS; /* .notdef */ + + if (_csi_unlikely (csi_object_get_type (glyph) != CSI_OBJECT_TYPE_DICTIONARY)) + return CAIRO_STATUS_USER_FONT_ERROR; + + status = csi_name_new_static (ctx, &key, "metrics"); + if (_csi_unlikely (status)) + return CAIRO_STATUS_USER_FONT_ERROR; + + font = glyph->datum.dictionary; + if (csi_dictionary_has (font, key.datum.name)) { + csi_array_t *array; + + status = csi_dictionary_get (ctx, font, key.datum.name, &obj); + if (_csi_unlikely (status)) + return CAIRO_STATUS_USER_FONT_ERROR; + + if (_csi_unlikely (csi_object_get_type (&obj) != + CSI_OBJECT_TYPE_ARRAY)) + return CAIRO_STATUS_USER_FONT_ERROR; + + array = obj.datum.array; + if (_csi_unlikely (array->stack.len != 6)) + return CAIRO_STATUS_USER_FONT_ERROR; + + metrics->x_bearing = csi_number_get_value (&array->stack.objects[0]); + metrics->y_bearing = csi_number_get_value (&array->stack.objects[1]); + metrics->width = csi_number_get_value (&array->stack.objects[2]); + metrics->height = csi_number_get_value (&array->stack.objects[3]); + metrics->x_advance = csi_number_get_value (&array->stack.objects[4]); + metrics->y_advance = csi_number_get_value (&array->stack.objects[5]); + } + + status = csi_name_new_static (ctx, &key, "render"); + if (_csi_unlikely (status)) + return CAIRO_STATUS_USER_FONT_ERROR; + + status = csi_dictionary_get (ctx, font, key.datum.name, &render); + if (_csi_unlikely (status)) + return CAIRO_STATUS_USER_FONT_ERROR; + + if (_csi_unlikely (! csi_object_is_procedure (&render))) + return CAIRO_STATUS_USER_FONT_ERROR; + + obj.type = CSI_OBJECT_TYPE_CONTEXT; + obj.datum.cr = cairo_reference (cr); + status = push (&obj); + if (_csi_unlikely (status)) { + cairo_destroy (cr); + return CAIRO_STATUS_USER_FONT_ERROR; + } + + status = csi_object_execute (ctx, &render); + pop (1); + return status ? CAIRO_STATUS_USER_FONT_ERROR : CAIRO_STATUS_SUCCESS; +} + +static csi_status_t +_font_type3 (csi_t *ctx, + csi_dictionary_t *font, + cairo_font_face_t **font_face_out) +{ + cairo_font_face_t *font_face; + + font_face = cairo_user_font_face_create (); + cairo_user_font_face_set_init_func (font_face, _type3_init); + cairo_user_font_face_set_unicode_to_glyph_func (font_face, _type3_lookup); + cairo_user_font_face_set_render_glyph_func (font_face, _type3_render); + + *font_face_out = font_face; + return CSI_STATUS_SUCCESS; +} + +#if CAIRO_HAS_FT_FONT +#include +#include +#include FT_FREETYPE_H + +static FT_Library _ft_lib; + +struct _ft_face_data { + csi_t *ctx; + csi_blob_t blob; + FT_Face face; + csi_string_t *source; + void *bytes; + cairo_font_face_t *font_face; +}; + +static void +_ft_done_face (void *closure) +{ + struct _ft_face_data *data = closure; + csi_t *ctx; + + ctx = data->ctx; + + if (data->face != NULL) + FT_Done_Face (data->face); + + ctx->_faces = _csi_list_unlink (ctx->_faces, &data->blob.list); + + if (data->source != NULL) { + if (--data->source->base.ref == 0) + csi_string_free (ctx, data->source); + } else { +#ifdef HAVE_MMAP + munmap (data->blob.bytes, data->blob.len); +#endif + } + + if (data->bytes != NULL) + _csi_free (ctx, data->bytes); + + _csi_slab_free (ctx, data, sizeof (*data)); + + cairo_script_interpreter_destroy (ctx); +} + +struct mmap_vec { + const uint8_t *bytes; + size_t num_bytes; +}; + +#ifdef HAVE_MMAP +/* manual form of swapping for swapless systems like tiny */ +static void * +_mmap_bytes (const struct mmap_vec *vec, int count) +{ + char template[] = "/tmp/csi-font.XXXXXX"; + void *ptr; + int fd; + int num_bytes; + + fd = mkstemp (template); + if (fd == -1) + return MAP_FAILED; + + unlink (template); + num_bytes = 0; + while (count--) { + const uint8_t *bytes = vec->bytes; + size_t len = vec->num_bytes; + while (len) { + int ret = write (fd, bytes, len); + if (ret < 0) { + close (fd); + return MAP_FAILED; + } + len -= ret; + bytes += ret; + } + + num_bytes += vec->num_bytes; + vec++; + } + + ptr = mmap (NULL, num_bytes, PROT_READ, MAP_SHARED, fd, 0); + close (fd); + + return ptr; +} +#endif + +static void * +inflate_string (csi_t *ctx, csi_string_t *src) +{ + uLongf len; + uint8_t *bytes; + + len = src->deflate; + bytes = _csi_alloc (ctx, len + 1); + if (bytes == NULL) + return NULL; + + switch (src->method) { + default: + case NONE: + free (bytes); + return NULL; + + case ZLIB: +#if HAVE_ZLIB + if (uncompress ((Bytef *) bytes, &len, + (Bytef *) src->string, src->len) != Z_OK) +#endif + { + _csi_free (ctx, bytes); + return NULL; + } + break; + + case LZO: +#if HAVE_LZO + if (lzo2a_decompress ((Bytef *) src->string, src->len, + (Bytef *) bytes, &len, + NULL)) +#endif + { + _csi_free (ctx, bytes); + return NULL; + } + break; + } + + bytes[len] = '\0'; + return bytes; +} + +static csi_status_t +_ft_create_for_source (csi_t *ctx, + csi_string_t *source, + int index, int load_flags, + cairo_font_face_t **font_face_out) +{ + csi_blob_t tmpl; + struct _ft_face_data *data; + csi_list_t *link; + FT_Error err; + cairo_font_face_t *font_face; + csi_status_t status; + struct mmap_vec vec[2]; + int vec_count; + void *bytes; + int len; + + /* check for an existing FT_Face (kept alive by the font cache) */ + /* XXX index/flags */ + _csi_blob_init (&tmpl, (uint8_t *) source->string, source->len); + _csi_blob_hash (&tmpl, (uint32_t *) source->string, source->len / sizeof (uint32_t)); + link = _csi_list_find (ctx->_faces, _csi_blob_equal, &tmpl); + if (link) { + if (--source->base.ref == 0) + csi_string_free (ctx, source); + data = csi_container_of (link, struct _ft_face_data, blob.list); + *font_face_out = cairo_font_face_reference (data->font_face); + return CSI_STATUS_SUCCESS; + } + + /* no existing font_face, create new FT_Face */ + if (_ft_lib == NULL) { + err = FT_Init_FreeType (&_ft_lib); + if (_csi_unlikely (err != FT_Err_Ok)) + return _csi_error (CSI_STATUS_NO_MEMORY); + } + + data = _csi_slab_alloc (ctx, sizeof (*data)); + data->bytes = NULL; + data->source = source; + + vec[0].bytes = tmpl.bytes; + vec[0].num_bytes = tmpl.len; + + if (source->deflate) { + len = source->deflate; + bytes = inflate_string (ctx, source); + if (_csi_unlikely (bytes == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + + vec[1].bytes = bytes; + vec[1].num_bytes = len; + data->bytes = bytes; + vec_count = 2; + } else { + bytes = tmpl.bytes; + len = tmpl.len; + vec_count = 1; + } + + data->face = NULL; + ctx->_faces = _csi_list_prepend (ctx->_faces, &data->blob.list); + data->ctx = cairo_script_interpreter_reference (ctx); + data->blob.hash = tmpl.hash; + data->blob.len = tmpl.len; +#ifdef HAVE_MMAP + data->blob.bytes = _mmap_bytes (vec, vec_count); + if (data->blob.bytes != MAP_FAILED) { + if (--source->base.ref == 0) + csi_string_free (ctx, source); + + if (source->deflate) { + _csi_free (ctx, bytes); + bytes = data->blob.bytes + vec[0].num_bytes; + } else + bytes = data->blob.bytes; + + data->source = NULL; + data->bytes = NULL; + } else { + data->blob.bytes = tmpl.bytes; + } +#else + data->blob.bytes = tmpl.bytes; +#endif + + err = FT_New_Memory_Face (_ft_lib, + bytes, len, + index, + &data->face); + if (_csi_unlikely (err != FT_Err_Ok)) { + _ft_done_face (data); + + if (err == FT_Err_Out_Of_Memory) + return _csi_error (CSI_STATUS_NO_MEMORY); + + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + font_face = cairo_ft_font_face_create_for_ft_face (data->face, load_flags); + status = cairo_font_face_set_user_data (font_face, + &_csi_blob_key, + data, _ft_done_face); + if (_csi_unlikely (status)) { + _ft_done_face (data); + cairo_font_face_destroy (font_face); + return status; + } + + data->font_face = font_face; + *font_face_out = font_face; + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_ft_create_for_pattern (csi_t *ctx, + csi_string_t *string, + cairo_font_face_t **font_face_out) +{ +#if CAIRO_HAS_FC_FONT + csi_blob_t tmpl; + struct _ft_face_data *data; + csi_list_t *link; + cairo_font_face_t *font_face; + FcPattern *pattern, *resolved; + csi_status_t status; + struct mmap_vec vec; + void *bytes; + + _csi_blob_init (&tmpl, (uint8_t *) string->string, string->len); + _csi_blob_hash (&tmpl, (uint32_t *) string->string, string->len / sizeof (uint32_t)); + link = _csi_list_find (ctx->_faces, _csi_blob_equal, &tmpl); + if (link) { + if (--string->base.ref == 0) + csi_string_free (ctx, string); + data = csi_container_of (link, struct _ft_face_data, blob.list); + *font_face_out = cairo_font_face_reference (data->font_face); + return CSI_STATUS_SUCCESS; + } + + if (string->deflate) { + bytes = inflate_string (ctx, string); + if (_csi_unlikely (bytes == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + } else { + bytes = tmpl.bytes; + } + + pattern = FcNameParse (bytes); + if (!pattern) + { + /* Fontconfig's representation of charset changed mid 2014; + * We used to record charset before that. Remove everything + * after charset if that's present, and try again. */ + char *s = strstr ((char *) bytes, ":charset="); + if (s) + { + *s = '\0'; + pattern = FcNameParse (bytes); + } + } + if (bytes != tmpl.bytes) + _csi_free (ctx, bytes); + +retry: + resolved = pattern; + if (cairo_version () < CAIRO_VERSION_ENCODE (1, 9, 0)) { + /* prior to 1.9, you needed to pass a resolved pattern */ + resolved = FcFontMatch (NULL, pattern, NULL); + if (_csi_unlikely (resolved == NULL)) { + FcPatternDestroy (pattern); + return _csi_error (CSI_STATUS_NO_MEMORY); + } + } + + font_face = cairo_ft_font_face_create_for_pattern (resolved); + if (resolved != pattern) + FcPatternDestroy (resolved); + + if (cairo_font_face_status (font_face)) { + char *filename = NULL; + + /* Try a manual fallback process by eliminating specific requests */ + + if (FcPatternGetString (pattern, + FC_FILE, 0, + (FcChar8 **) &filename) == FcResultMatch) { + FcPatternDel (pattern, FC_FILE); + goto retry; + } + } + + FcPatternDestroy (pattern); + + data = _csi_slab_alloc (ctx, sizeof (*data)); + ctx->_faces = _csi_list_prepend (ctx->_faces, &data->blob.list); + data->ctx = cairo_script_interpreter_reference (ctx); + data->blob.hash = tmpl.hash; + data->blob.len = tmpl.len; + data->bytes = NULL; + data->face = NULL; +#ifdef HAVE_MMAP + vec.bytes = tmpl.bytes; + vec.num_bytes = tmpl.len; + data->blob.bytes = _mmap_bytes (&vec, 1); + if (data->blob.bytes != MAP_FAILED) { + data->source = NULL; + if (--string->base.ref == 0) + csi_string_free (ctx, string); + } else { + data->blob.bytes = tmpl.bytes; + data->source = string; + } +#else + data->blob.bytes = tmpl.bytes; + data->source = string; +#endif + + status = cairo_font_face_set_user_data (font_face, + &_csi_blob_key, + data, _ft_done_face); + if (_csi_unlikely (status)) { + _ft_done_face (data); + cairo_font_face_destroy (font_face); + return status; + } + + data->font_face = font_face; + *font_face_out = font_face; + return CSI_STATUS_SUCCESS; +#else + if (--string->base.ref == 0) + csi_string_free (ctx, string); + return CSI_INT_STATUS_UNSUPPORTED; +#endif +} + +static csi_status_t +_ft_type42_create (csi_t *ctx, + csi_dictionary_t *font, + cairo_font_face_t **font_face_out) +{ + csi_object_t key; + csi_status_t status; + + /* two basic sub-types, either an FcPattern or embedded font */ + status = csi_name_new_static (ctx, &key, "pattern"); + if (_csi_unlikely (status)) + return status; + + if (csi_dictionary_has (font, key.datum.name)) { + csi_object_t obj; + int type; + + status = csi_dictionary_get (ctx, font, key.datum.name, &obj); + if (_csi_unlikely (status)) + return status; + + type = csi_object_get_type (&obj); + switch (type) { + case CSI_OBJECT_TYPE_FILE: + status = _csi_file_as_string (ctx, obj.datum.file, &obj); + if (_csi_unlikely (status)) + return status; + break; + case CSI_OBJECT_TYPE_STRING: + obj.datum.object->ref++; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + return _ft_create_for_pattern (ctx, + obj.datum.string, + font_face_out); + } + + status = csi_name_new_static (ctx, &key, "source"); + if (_csi_unlikely (status)) + return status; + + if (csi_dictionary_has (font, key.datum.name)) { + csi_object_t obj; + long index, flags; + int type; + + index = 0; + status = _csi_dictionary_get_integer (ctx, font, "index", TRUE, &index); + if (_csi_unlikely (status)) + return status; + + flags = 0; + status = _csi_dictionary_get_integer (ctx, font, "flags", TRUE, &flags); + if (_csi_unlikely (status)) + return status; + + status = csi_name_new_static (ctx, &key, "source"); + if (_csi_unlikely (status)) + return status; + status = csi_dictionary_get (ctx, font, key.datum.name, &obj); + if (_csi_unlikely (status)) + return status; + type = csi_object_get_type (&obj); + switch (type) { + case CSI_OBJECT_TYPE_FILE: + status = _csi_file_as_string (ctx, obj.datum.file, &obj); + if (_csi_unlikely (status)) + return status; + break; + case CSI_OBJECT_TYPE_STRING: + obj.datum.object->ref++; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + return _ft_create_for_source (ctx, obj.datum.string, + index, flags, + font_face_out); + } + + return _csi_error (CSI_STATUS_INVALID_SCRIPT); +} +#else +#define _ft_type42_create(ctx, font, face_out) CSI_INT_STATUS_UNSUPPORTED +#endif + +static char * +_fc_strcpy (csi_t *ctx, const char *str) +{ + char *ret; + int len; + + ret = strchr (str, ':'); + if (ret != NULL) + len = ret - str; + else + len = strlen (str); + + ret = _csi_alloc (ctx, len+1); + if (_csi_unlikely (ret == NULL)) + return NULL; + + memcpy (ret, str, len); + ret[len] = '\0'; + + return ret; +} + +static cairo_font_face_t * +_select_font (const char *name) +{ + cairo_surface_t *surface; + cairo_font_face_t *face; + cairo_t *cr; + + /* create a dummy context to choose a font */ + surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 0, 0); + cr = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_select_font_face (cr, name, + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + face = cairo_font_face_reference (cairo_get_font_face (cr)); + cairo_destroy (cr); + + return face; +} + +static csi_status_t +_ft_fallback_create_for_pattern (csi_t *ctx, + csi_string_t *string, + cairo_font_face_t **font_face_out) +{ + char *str, *name; + + str = string->string; +#if 0 + name = strstr (str, "fullname="); + if (name != NULL) + str = name + 9; +#endif + + name = _fc_strcpy (ctx, str); + if (_csi_unlikely (name == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + + *font_face_out = _select_font (name); + _csi_free (ctx, name); + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_ft_type42_fallback_create (csi_t *ctx, + csi_dictionary_t *font, + cairo_font_face_t **font_face_out) +{ + csi_object_t key; + csi_status_t status; + + /* attempt to select a similar font */ + + /* two basic sub-types, either an FcPattern or embedded font */ + status = csi_name_new_static (ctx, &key, "pattern"); + if (_csi_unlikely (status)) + return status; + + if (csi_dictionary_has (font, key.datum.name)) { + csi_object_t obj; + int type; + + status = csi_dictionary_get (ctx, font, key.datum.name, &obj); + if (_csi_unlikely (status)) + return status; + + type = csi_object_get_type (&obj); + switch (type) { + case CSI_OBJECT_TYPE_FILE: + status = _csi_file_as_string (ctx, obj.datum.file, &obj); + if (_csi_unlikely (status)) + return status; + break; + case CSI_OBJECT_TYPE_STRING: + obj.datum.object->ref++; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + return _ft_fallback_create_for_pattern (ctx, + obj.datum.string, + font_face_out); + } + + /* XXX: enable the trace to run */ + *font_face_out = _select_font ("Sans"); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_font_type42 (csi_t *ctx, csi_dictionary_t *font, cairo_font_face_t **font_face) +{ + csi_status_t status; + + status = _ft_type42_create (ctx, font, font_face); + if (_csi_likely (status != CSI_INT_STATUS_UNSUPPORTED)) + return status; + + return _ft_type42_fallback_create (ctx, font, font_face); +} + +static csi_status_t +_font (csi_t *ctx) +{ + csi_dictionary_t *font; + csi_status_t status; + cairo_font_face_t *font_face = NULL; /* silence the compiler */ + csi_proxy_t *proxy; + csi_object_t obj; + long type; + + check (1); + + status = _csi_ostack_get_dictionary (ctx, 0, &font); + if (_csi_unlikely (status)) + return status; + + status = _csi_dictionary_get_integer (ctx, font, "type", FALSE, &type); + if (_csi_unlikely (status)) + return status; + + switch (type) { + case 3: + status = _font_type3 (ctx, font, &font_face); + break; + case 42: + status = _font_type42 (ctx, font, &font_face); + break; + default: + status = _csi_error (CSI_STATUS_INVALID_SCRIPT); + break; + } + + if (_csi_unlikely (status)) + return status; + + /* transfer ownership of dictionary to cairo_font_face_t */ + proxy = _csi_proxy_create (ctx, font_face, font, NULL, NULL); + if (_csi_unlikely (proxy == NULL)) { + cairo_font_face_destroy (font_face); + return _csi_error (CSI_STATUS_NO_MEMORY); + } + + status = cairo_font_face_set_user_data (font_face, + &_csi_proxy_key, + proxy, _csi_proxy_destroy); + if (_csi_unlikely (status)) { + _csi_proxy_destroy (proxy); + cairo_font_face_destroy (font_face); + return status; + } + + obj.type = CSI_OBJECT_TYPE_FONT; + obj.datum.font_face = font_face; + + pop (1); + status = push (&obj); + if (_csi_unlikely (status)) { + cairo_font_face_destroy (font_face); + return status; + } + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_for (csi_t *ctx) +{ + csi_array_t *proc; + csi_status_t status; + long i, inc, limit; + + check (4); + + status = _csi_ostack_get_procedure (ctx, 0, &proc); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_integer (ctx, 1, &limit); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_integer (ctx, 2, &inc); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_integer (ctx, 3, &i); + if (_csi_unlikely (status)) + return status; + + proc->base.ref++; + pop (4); + + for (; i <= limit; i += inc) { + status = _csi_push_ostack_integer (ctx, i); + if (_csi_unlikely (status)) + break; + + status = _csi_array_execute (ctx, proc); + if (_csi_unlikely (status)) + break; + } + + if (--proc->base.ref == 0) + csi_array_free (ctx, proc); + return status; +} + +static csi_status_t +_ge (csi_t *ctx) +{ + csi_status_t status; + csi_object_t *a, *b; + int cmp; + + check (2); + + b = _csi_peek_ostack (ctx, 0); + a = _csi_peek_ostack (ctx, 1); + + status = csi_object_compare (a, b, &cmp); + if (_csi_unlikely (status)) + return status; + + pop (2); + return _csi_push_ostack_boolean (ctx, cmp >= 0); +} + +static csi_status_t +_proxy_get (csi_proxy_t *proxy, + csi_name_t key) +{ + csi_object_t obj; + csi_status_t status; + + if (_csi_unlikely (proxy == NULL || proxy->dictionary == NULL)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + status = csi_dictionary_get (proxy->ctx, proxy->dictionary, key, &obj); + if (_csi_unlikely (status)) + return status; + + return _csi_push_ostack_copy (proxy->ctx, &obj); +} + +static csi_status_t +_context_get (csi_t *ctx, + cairo_t *cr, + csi_name_t key) +{ + csi_status_t status; + csi_object_t obj; + + if (strcmp ((char *) key, "current-point") == 0) { + double x, y; + + cairo_get_current_point (cr, &x, &y); + + status = _csi_push_ostack_real (ctx, x); + if (_csi_unlikely (status)) + return status; + status = _csi_push_ostack_real (ctx, y); + if (_csi_unlikely (status)) + return status; + + return CSI_STATUS_SUCCESS; + } else if (strcmp ((char *) key, "source") == 0) { + obj.type = CSI_OBJECT_TYPE_PATTERN; + obj.datum.pattern = cairo_pattern_reference (cairo_get_source (cr)); + } else if (strcmp ((char *) key, "target") == 0) { + obj.type = CSI_OBJECT_TYPE_SURFACE; + obj.datum.surface = cairo_surface_reference (cairo_get_target (cr)); + } else if (strcmp ((char *) key, "group-target") == 0) { + obj.type = CSI_OBJECT_TYPE_SURFACE; + obj.datum.surface = cairo_surface_reference (cairo_get_group_target (cr)); + } else if (strcmp ((char *) key, "scaled-font") == 0) { + obj.type = CSI_OBJECT_TYPE_SCALED_FONT; + obj.datum.scaled_font = cairo_scaled_font_reference (cairo_get_scaled_font (cr)); + } else if (strcmp ((char *) key, "font-face") == 0) { + obj.type = CSI_OBJECT_TYPE_FONT; + obj.datum.font_face = cairo_font_face_reference (cairo_get_font_face (cr)); + } else + return _proxy_get (cairo_get_user_data (cr, &_csi_proxy_key), key); + + return push (&obj); +} + +static csi_status_t +_font_get (csi_t *ctx, + cairo_font_face_t *font_face, + csi_name_t key) +{ + return _proxy_get (cairo_font_face_get_user_data (font_face, + &_csi_proxy_key), + key); +} + +static csi_status_t +_pattern_get (csi_t *ctx, + cairo_pattern_t *pattern, + csi_name_t key) +{ + csi_status_t status; + + if (strcmp ((char *) key, "type") == 0) + return _csi_push_ostack_integer (ctx, cairo_pattern_get_type (pattern)); + + if (strcmp ((char *) key, "filter") == 0) + return _csi_push_ostack_integer (ctx, cairo_pattern_get_filter (pattern)); + + if (strcmp ((char *) key, "extend") == 0) + return _csi_push_ostack_integer (ctx, cairo_pattern_get_extend (pattern)); + + if (strcmp ((char *) key, "matrix") == 0) { + csi_object_t obj; + cairo_matrix_t m; + + cairo_pattern_get_matrix (pattern, &m); + status = csi_matrix_new_from_matrix (ctx, &obj, &m); + if (_csi_unlikely (status)) + return status; + + return push (&obj); + } + + return _proxy_get (cairo_pattern_get_user_data (pattern, &_csi_proxy_key), + key); +} + +static csi_status_t +_scaled_font_get (csi_t *ctx, + cairo_scaled_font_t *font, + csi_name_t key) +{ + return _proxy_get (cairo_scaled_font_get_user_data (font, &_csi_proxy_key), + key); +} + +static csi_status_t +_surface_get (csi_t *ctx, + cairo_surface_t *surface, + csi_name_t key) +{ + if (strcmp ((char *) key, "type") == 0) { + return _csi_push_ostack_integer (ctx, cairo_surface_get_type (surface)); + } + + if (strcmp ((char *) key, "content") == 0) { + return _csi_push_ostack_integer (ctx, + cairo_surface_get_content (surface)); + } + + return _proxy_get (cairo_surface_get_user_data (surface, &_csi_proxy_key), + key); +} + +static csi_status_t +_get (csi_t *ctx) +{ + csi_object_t *key, *src, obj; + csi_status_t status; + int type; + + check (2); + + key = _csi_peek_ostack (ctx, 0); + src = _csi_peek_ostack (ctx, 1); + pop (1); + type = csi_object_get_type (src); + switch (type) { + case CSI_OBJECT_TYPE_DICTIONARY: + if (_csi_unlikely (csi_object_get_type (key) != CSI_OBJECT_TYPE_NAME)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + status = csi_dictionary_get (ctx, + src->datum.dictionary, + key->datum.name, + &obj); + break; + case CSI_OBJECT_TYPE_ARRAY: + if (_csi_unlikely (csi_object_get_type (key) != CSI_OBJECT_TYPE_INTEGER)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + status = csi_array_get (ctx, + src->datum.array, + key->datum.integer, + &obj); + break; +#if 0 + case CSI_OBJECT_TYPE_STRING: + status = csi_string_get (src, key, &obj); + break; +#endif + + case CSI_OBJECT_TYPE_CONTEXT: + if (_csi_unlikely (csi_object_get_type (key) != CSI_OBJECT_TYPE_NAME)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + return _context_get (ctx, src->datum.cr, key->datum.name); + + case CSI_OBJECT_TYPE_FONT: + if (_csi_unlikely (csi_object_get_type (key) != CSI_OBJECT_TYPE_NAME)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + return _font_get (ctx, src->datum.font_face, key->datum.name); + + case CSI_OBJECT_TYPE_PATTERN: + if (_csi_unlikely (csi_object_get_type (key) != CSI_OBJECT_TYPE_NAME)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + return _pattern_get (ctx, src->datum.pattern, key->datum.name); + + case CSI_OBJECT_TYPE_SCALED_FONT: + if (_csi_unlikely (csi_object_get_type (key) != CSI_OBJECT_TYPE_NAME)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + return _scaled_font_get (ctx, src->datum.scaled_font, key->datum.name); + + case CSI_OBJECT_TYPE_SURFACE: + if (_csi_unlikely (csi_object_get_type (key) != CSI_OBJECT_TYPE_NAME)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + return _surface_get (ctx, src->datum.surface, key->datum.name); + + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + if (_csi_unlikely (status)) + return status; + + return _csi_push_ostack_copy (ctx, &obj); +} + +struct glyph_advance_cache { + csi_t *ctx; + double glyph_advance[256][2]; + unsigned long have_glyph_advance[256]; +}; + +static void +glyph_advance_cache_destroy (void *closure) +{ + struct glyph_advance_cache *cache = closure; + _csi_free (cache->ctx, cache); +} + +static int +_glyph_string (csi_t *ctx, + csi_array_t *array, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs) +{ + struct glyph_advance_cache uncached; + struct glyph_advance_cache *cache; + csi_integer_t nglyphs, i, j; + double x, y, dx; + cairo_status_t status; + + if (cairo_scaled_font_status (scaled_font)) + return 0; + + cache = cairo_scaled_font_get_user_data (scaled_font, + (cairo_user_data_key_t *) ctx); + if (cache == NULL) { + cache = _csi_alloc (ctx, sizeof (*cache)); + if (_csi_likely (cache != NULL)) { + cache->ctx = ctx; + memset (cache->have_glyph_advance, 0xff, + sizeof (cache->have_glyph_advance)); + + status = cairo_scaled_font_set_user_data (scaled_font, + (cairo_user_data_key_t *) ctx, + cache, + glyph_advance_cache_destroy); + if (_csi_unlikely (status)) { + _csi_free (ctx, cache); + cache = NULL; + } + } + } + + if (_csi_unlikely (cache == NULL)) { + cache = &uncached; + + cache->ctx = ctx; + memset (cache->have_glyph_advance, 0xff, + sizeof (cache->have_glyph_advance)); + } + + nglyphs = 0; + x = y = 0; + for (i = 0; i < array->stack.len; i++) { + const csi_object_t *obj = &array->stack.objects[i]; + int type = csi_object_get_type (obj); + + switch (type) { + case CSI_OBJECT_TYPE_ARRAY: { + const csi_array_t *glyph_array = obj->datum.array; + for (j = 0; j < glyph_array->stack.len; j++) { + unsigned long g; + int gi; + + obj = &glyph_array->stack.objects[j]; + if (csi_object_get_type (obj) != CSI_OBJECT_TYPE_INTEGER) + break; + g = obj->datum.integer; + + glyphs[nglyphs].index = g; + glyphs[nglyphs].x = x; + glyphs[nglyphs].y = y; + + gi = g % ARRAY_LENGTH (cache->have_glyph_advance); + if (cache->have_glyph_advance[gi] != g) { + cairo_text_extents_t extents; + + cairo_scaled_font_glyph_extents (scaled_font, + &glyphs[nglyphs], 1, + &extents); + + cache->glyph_advance[gi][0] = extents.x_advance; + cache->glyph_advance[gi][1] = extents.y_advance; + cache->have_glyph_advance[gi] = g; + } + + x += cache->glyph_advance[gi][0]; + y += cache->glyph_advance[gi][1]; + nglyphs++; + } + break; + } + + case CSI_OBJECT_TYPE_STRING: { + const csi_string_t *glyph_string = obj->datum.string; + for (j = 0; j < glyph_string->len; j++) { + uint8_t g; + + g = glyph_string->string[j]; + glyphs[nglyphs].index = g; + glyphs[nglyphs].x = x; + glyphs[nglyphs].y = y; + + if (cache->have_glyph_advance[g] != g) { + cairo_text_extents_t extents; + + cairo_scaled_font_glyph_extents (scaled_font, + &glyphs[nglyphs], 1, + &extents); + + cache->glyph_advance[g][0] = extents.x_advance; + cache->glyph_advance[g][1] = extents.y_advance; + cache->have_glyph_advance[g] = g; + } + + x += cache->glyph_advance[g][0]; + y += cache->glyph_advance[g][1]; + nglyphs++; + } + break; + } + + case CSI_OBJECT_TYPE_INTEGER: + case CSI_OBJECT_TYPE_REAL: /* dx or x*/ + dx = csi_number_get_value (obj); + if (i+1 == array->stack.len) + break; + + type = csi_object_get_type (&array->stack.objects[i+1]); + switch (type) { + case CSI_OBJECT_TYPE_INTEGER: + case CSI_OBJECT_TYPE_REAL: /* y */ + y = csi_number_get_value (&array->stack.objects[i+1]); + x = dx; + i++; + break; + + default: + x += dx; + } + } + } + + return nglyphs; +} + +static csi_status_t +_glyph_path (csi_t *ctx) +{ + csi_array_t *array; + csi_status_t status; + cairo_t *cr; + cairo_glyph_t stack_glyphs[256], *glyphs; + csi_integer_t nglyphs, i; + + check (2); + + status = _csi_ostack_get_array (ctx, 0, &array); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + /* count glyphs */ + nglyphs = 0; + for (i = 0; i < array->stack.len; i++) { + csi_object_t *obj = &array->stack.objects[i]; + int type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_ARRAY: + nglyphs += obj->datum.array->stack.len; + break; + case CSI_OBJECT_TYPE_STRING: + nglyphs += obj->datum.string->len; + break; + } + } + if (nglyphs == 0) { + pop (1); + return CSI_STATUS_SUCCESS; + } + + if (nglyphs > ARRAY_LENGTH (stack_glyphs)) { + if (_csi_unlikely ((unsigned) nglyphs >= INT_MAX / sizeof (cairo_glyph_t))) + return _csi_error (CSI_STATUS_NO_MEMORY); + + glyphs = _csi_alloc (ctx, sizeof (cairo_glyph_t) * nglyphs); + if (_csi_unlikely (glyphs == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + } else + glyphs = stack_glyphs; + + nglyphs = _glyph_string (ctx, array, cairo_get_scaled_font (cr), glyphs); + cairo_glyph_path (cr, glyphs, nglyphs); + + if (glyphs != stack_glyphs) + _csi_free (ctx, glyphs); + + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_gray (csi_t *ctx) +{ + csi_object_t obj; + csi_status_t status; + double g; + + check (1); + + status = _csi_ostack_get_number (ctx, 0, &g); + if (_csi_unlikely (status)) + return status; + + pop (1); + + obj.type = CSI_OBJECT_TYPE_PATTERN; + obj.datum.pattern = cairo_pattern_create_rgba (g, g, g, 1); + return push (&obj); +} + +static csi_status_t +_gt (csi_t *ctx) +{ + csi_status_t status; + csi_object_t *a, *b; + int cmp; + + check (2); + + b = _csi_peek_ostack (ctx, 0); + a = _csi_peek_ostack (ctx, 1); + + status = csi_object_compare (a, b, &cmp); + if (_csi_unlikely (status)) + return status; + + pop (2); + return _csi_push_ostack_boolean (ctx, cmp > 0); +} + +static csi_status_t +_identity (csi_t *ctx) +{ + csi_object_t obj; + csi_status_t status; + + status = csi_matrix_new (ctx, &obj); + if (_csi_unlikely (status)) + return status; + + return push (&obj); +} + +static csi_status_t +_if (csi_t *ctx) +{ + csi_array_t *proc; + csi_boolean_t predicate = FALSE; /* silence the compiler */ + csi_status_t status; + + check (2); + + status = _csi_ostack_get_procedure (ctx, 0, &proc); + if (_csi_unlikely (status)) + return status; + + status = _csi_ostack_get_boolean (ctx, 1, &predicate); + if (_csi_unlikely (status)) + return status; + + proc->base.ref++; + pop (2); + + if (predicate) + status = _csi_array_execute (ctx, proc); + + if (--proc->base.ref == 0) + csi_array_free (ctx, proc); + + return status; +} + +static csi_status_t +_ifelse (csi_t *ctx) +{ + csi_array_t *true_proc, *false_proc; + csi_boolean_t predicate = FALSE; /* silence the compiler */ + csi_status_t status; + + check (3); + + status = _csi_ostack_get_procedure (ctx, 0, &false_proc); + if (_csi_unlikely (status)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + status = _csi_ostack_get_procedure (ctx, 1, &true_proc); + if (_csi_unlikely (status)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + status = _csi_ostack_get_boolean (ctx, 2, &predicate); + if (_csi_unlikely (status)) + return status; + + true_proc->base.ref++; + false_proc->base.ref++; + pop (3); + + if (predicate) + status = _csi_array_execute (ctx, true_proc); + else + status = _csi_array_execute (ctx, false_proc); + + if (--true_proc->base.ref == 0) + csi_array_free (ctx, true_proc); + if (--false_proc->base.ref == 0) + csi_array_free (ctx, false_proc); + + return status; +} + +static csi_status_t +_image_read_raw (csi_t *ctx, + csi_object_t *src, + cairo_format_t format, + int width, int height, + cairo_surface_t **image_out) +{ + cairo_surface_t *image; + uint8_t *bp, *data; + int rem, len, ret, x, rowlen, instride, stride; + cairo_status_t status; + + if (width == 0 || height == 0) { + *image_out = cairo_image_surface_create (format, 0, 0); + return CSI_STATUS_SUCCESS; + } + + if (ctx->hooks.create_source_image != NULL) { + image = ctx->hooks.create_source_image (ctx->hooks.closure, + format, width, height, + 0); + + stride = cairo_image_surface_get_stride (image); + data = cairo_image_surface_get_data (image); + } else { + stride = cairo_format_stride_for_width (format, width); + data = malloc (stride * height); + if (data == NULL) + return CAIRO_STATUS_NO_MEMORY; + + image = cairo_image_surface_create_for_data (data, format, + width, height, stride); + status = cairo_surface_set_user_data (image, + (const cairo_user_data_key_t *) image, + data, free); + if (status) { + cairo_surface_destroy (image); + free (image); + return status; + } + } + + switch (format) { + case CAIRO_FORMAT_A1: + instride = rowlen = (width+7)/8; + break; + case CAIRO_FORMAT_A8: + instride = rowlen = width; + break; + case CAIRO_FORMAT_RGB16_565: + instride = rowlen = 2 * width; + break; + case CAIRO_FORMAT_RGB24: + rowlen = 3 * width; + instride = 4 *width; + break; + default: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_INVALID: + case CAIRO_FORMAT_ARGB32: + instride = rowlen = 4 * width; + break; + case CAIRO_FORMAT_RGB96F: + instride = rowlen = 12 * width; + break; + case CAIRO_FORMAT_RGBA128F: + instride = rowlen = 16 * width; + break; + } + len = rowlen * height; + + if (rowlen == instride && + src->type == CSI_OBJECT_TYPE_STRING && + len == src->datum.string->deflate) + { + csi_string_t *s = src->datum.string; + unsigned long out = s->deflate; + + switch (s->method) { + default: + case NONE: +err_decompress: + cairo_surface_destroy (image); + return _csi_error (CSI_STATUS_READ_ERROR); + + case ZLIB: +#if HAVE_ZLIB + if (uncompress ((Bytef *) data, &out, + (Bytef *) s->string, s->len) != Z_OK) +#endif + goto err_decompress; + break; + + case LZO: +#if HAVE_LZO + if (lzo2a_decompress ((Bytef *) s->string, s->len, + (Bytef *) data, &out, + NULL)) +#endif + goto err_decompress; + break; + } + } + else + { + csi_object_t file; + + status = csi_object_as_file (ctx, src, &file); + if (_csi_unlikely (status)) { + cairo_surface_destroy (image); + return status; + } + + bp = data; + rem = len; + while (rem) { + ret = csi_file_read (file.datum.file, bp, rem); + if (_csi_unlikely (ret == 0)) { + cairo_surface_destroy (image); + return _csi_error (CSI_STATUS_READ_ERROR); + } + rem -= ret; + bp += ret; + } + + if (len != height * stride) { + while (--height) { + uint8_t *row = data + height * stride; + + /* XXX pixel conversion */ + switch (format) { + case CAIRO_FORMAT_A1: + for (x = rowlen; x--; ) { + uint8_t byte = *--bp; + row[x] = CSI_BITSWAP8_IF_LITTLE_ENDIAN (byte); + } + break; + case CAIRO_FORMAT_A8: + for (x = width; x--; ) + row[x] = *--bp; + break; + case CAIRO_FORMAT_RGB16_565: + for (x = width; x--; ) { +#ifdef WORDS_BIGENDIAN + row[2*x + 1] = *--bp; + row[2*x + 0] = *--bp; +#else + row[2*x + 0] = *--bp; + row[2*x + 1] = *--bp; +#endif + } + break; + case CAIRO_FORMAT_RGB24: + for (x = width; x--; ) { +#ifdef WORDS_BIGENDIAN + row[4*x + 3] = *--bp; + row[4*x + 2] = *--bp; + row[4*x + 1] = *--bp; + row[4*x + 0] = 0xff; +#else + row[4*x + 0] = *--bp; + row[4*x + 1] = *--bp; + row[4*x + 2] = *--bp; + row[4*x + 3] = 0xff; +#endif + } + break; + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGBA128F: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_INVALID: + case CAIRO_FORMAT_ARGB32: + /* stride == width */ + break; + } + + memset (row + instride, 0, stride - instride); + } + + /* need to treat last row carefully */ + switch (format) { + case CAIRO_FORMAT_A1: + for (x = rowlen; x--; ) { + uint8_t byte = *--bp; + data[x] = CSI_BITSWAP8_IF_LITTLE_ENDIAN (byte); + } + break; + case CAIRO_FORMAT_A8: + for (x = width; x--; ) + data[x] = *--bp; + break; + case CAIRO_FORMAT_RGB16_565: + for (x = width; x--; ) { +#ifdef WORDS_BIGENDIAN + data[2*x + 1] = *--bp; + data[2*x + 0] = *--bp; +#else + data[2*x + 0] = *--bp; + data[2*x + 1] = *--bp; +#endif + } + break; + case CAIRO_FORMAT_RGB24: + for (x = width; --x>1; ) { +#ifdef WORDS_BIGENDIAN + data[4*x + 3] = *--bp; + data[4*x + 2] = *--bp; + data[4*x + 1] = *--bp; + data[4*x + 0] = 0xff; +#else + data[4*x + 0] = *--bp; + data[4*x + 1] = *--bp; + data[4*x + 2] = *--bp; + data[4*x + 3] = 0xff; +#endif + } + if (width > 1) { + uint8_t rgb[2][3]; + /* shuffle the last couple of overlapping pixels */ + rgb[1][0] = data[5]; + rgb[1][1] = data[4]; + rgb[1][2] = data[3]; + rgb[0][0] = data[2]; + rgb[0][1] = data[1]; + rgb[0][2] = data[0]; +#ifdef WORDS_BIGENDIAN + data[4] = 0xff; + data[5] = rgb[1][2]; + data[6] = rgb[1][1]; + data[7] = rgb[1][0]; + data[0] = 0xff; + data[1] = rgb[0][2]; + data[2] = rgb[0][1]; + data[3] = rgb[0][0]; +#else + data[7] = 0xff; + data[6] = rgb[1][2]; + data[5] = rgb[1][1]; + data[4] = rgb[1][0]; + data[3] = 0xff; + data[2] = rgb[0][2]; + data[1] = rgb[0][1]; + data[0] = rgb[0][0]; +#endif + } else { +#ifdef WORDS_BIGENDIAN + data[0] = 0xff; + data[1] = data[0]; + data[2] = data[1]; + data[3] = data[2]; +#else + data[3] = data[0]; + data[0] = data[2]; + data[2] = data[3]; + data[3] = 0xff; +#endif + } + break; + case CAIRO_FORMAT_RGBA128F: + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_INVALID: + case CAIRO_FORMAT_ARGB32: + /* stride == width */ + break; + } + memset (data + instride, 0, stride - instride); + } else { +#ifndef WORDS_BIGENDIAN + switch (format) { + case CAIRO_FORMAT_A1: + for (x = 0; x < len; x++) { + uint8_t byte = data[x]; + data[x] = CSI_BITSWAP8_IF_LITTLE_ENDIAN (byte); + } + break; + case CAIRO_FORMAT_RGB16_565: + { + uint32_t *rgba = (uint32_t *) data; + for (x = len/2; x--; rgba++) { + *rgba = bswap_16 (*rgba); + } + } + break; + case CAIRO_FORMAT_ARGB32: + { + uint32_t *rgba = (uint32_t *) data; + for (x = len/4; x--; rgba++) { + *rgba = bswap_32 (*rgba); + } + } + break; + + case CAIRO_FORMAT_A8: + break; + + case CAIRO_FORMAT_RGBA128F: + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_RGB24: + case CAIRO_FORMAT_INVALID: + default: + break; + } +#endif + } + csi_object_free (ctx, &file); + } + + cairo_surface_mark_dirty (image); + *image_out = image; + return CSI_STATUS_SUCCESS; +} + +static cairo_status_t +png_read_func (void *closure, uint8_t *data, unsigned int len) +{ + int ret; + + ret = csi_file_read (closure, data, len); + if ((unsigned int) ret != len) + return CAIRO_STATUS_READ_ERROR; + + return CAIRO_STATUS_SUCCESS; +} + +static csi_status_t +_image_read_png (csi_file_t *src, cairo_surface_t **out) +{ +#if CAIRO_HAS_PNG_FUNCTIONS + *out = cairo_image_surface_create_from_png_stream (png_read_func, src); + return cairo_surface_status (*out); +#else + return CAIRO_STATUS_READ_ERROR; +#endif +} + +struct _image_tag { + csi_t *ctx; + csi_blob_t blob; + cairo_surface_t *surface; +}; + +static void +_image_tag_done (void *closure) +{ + struct _image_tag *tag = closure; + csi_t *ctx = tag->ctx; + + ctx->_images = _csi_list_unlink (ctx->_images, &tag->blob.list); + _csi_slab_free (ctx, tag, sizeof (*tag)); + cairo_script_interpreter_destroy (ctx); +} + +static void +_image_hash (csi_blob_t *blob, + cairo_surface_t *surface) +{ + uint32_t value; + + value = cairo_image_surface_get_width (surface); + _csi_blob_hash (blob, &value, 1); + + value = cairo_image_surface_get_height (surface); + _csi_blob_hash (blob, &value, 1); + + value = cairo_image_surface_get_format (surface); + _csi_blob_hash (blob, &value, 1); +} + +static cairo_surface_t * +_image_cached (csi_t *ctx, cairo_surface_t *surface) +{ + csi_blob_t tmpl; + csi_list_t *link; + uint8_t *data; + int stride, height; + struct _image_tag *tag; + + /* check for an existing image */ + + data = cairo_image_surface_get_data (surface); + stride = cairo_image_surface_get_stride (surface); + height = cairo_image_surface_get_height (surface); + _csi_blob_init (&tmpl, data, stride * height); + _image_hash (&tmpl, surface); + link = _csi_list_find (ctx->_images, _csi_blob_equal, &tmpl); + if (link) { + cairo_surface_destroy (surface); + tag = csi_container_of (link, struct _image_tag, blob.list); + return cairo_surface_reference (tag->surface); + } + + /* none found, insert a tag for this one */ + + tag = _csi_slab_alloc (ctx, sizeof (struct _image_tag)); + if (tag == NULL) + return surface; + + ctx->_images = _csi_list_prepend (ctx->_images, &tag->blob.list); + tag->ctx = cairo_script_interpreter_reference (ctx); + tag->blob.hash = tmpl.hash; + tag->blob.bytes = tmpl.bytes; + tag->blob.len = tmpl.len; + tag->surface = surface; + + if (cairo_surface_set_user_data (surface, &_csi_blob_key, + tag, _image_tag_done)) + { + _image_tag_done (tag); + } + + return surface; +} + +static csi_status_t +_image_load_from_dictionary (csi_t *ctx, + csi_dictionary_t *dict, + cairo_surface_t **image_out) +{ + csi_object_t obj, key; + long width; + long height; + long format; + cairo_surface_t *image = NULL; /* silence the compiler */ + csi_status_t status; + + /* check for "status? */ + + status = _csi_dictionary_get_integer (ctx, dict, "width", FALSE, &width); + if (_csi_unlikely (status)) + return status; + status = _csi_dictionary_get_integer (ctx, dict, "height", FALSE, &height); + if (_csi_unlikely (status)) + return status; + + format = CAIRO_FORMAT_ARGB32; + status = _csi_dictionary_get_integer (ctx, dict, "format", TRUE, &format); + if (_csi_unlikely (status)) + return status; + + status = csi_name_new_static (ctx, &key, "source"); + if (_csi_unlikely (status)) + return status; + + if (csi_dictionary_has (dict, key.datum.name)) { + enum mime_type mime_type; + csi_object_t file; + + status = csi_dictionary_get (ctx, dict, key.datum.name, &obj); + if (_csi_unlikely (status)) + return status; + + status = csi_name_new_static (ctx, &key, "mime-type"); + if (_csi_unlikely (status)) + return status; + + mime_type = MIME_TYPE_NONE; + if (csi_dictionary_has (dict, key.datum.name)) { + csi_object_t type_obj; + const char *type_str; + int type; + + status = csi_dictionary_get (ctx, dict, key.datum.name, &type_obj); + if (_csi_unlikely (status)) + return status; + + type = csi_object_get_type (&type_obj); + switch (type) { + case CSI_OBJECT_TYPE_STRING: + type_str = type_obj.datum.string->string; + break; + case CSI_OBJECT_TYPE_NAME: + type_str = (char *) type_obj.datum.name; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + if (strcmp (type_str, CAIRO_MIME_TYPE_PNG) == 0) + mime_type = MIME_TYPE_PNG; + } + + + /* XXX hook for general mime-type decoder */ + + switch (mime_type) { + case MIME_TYPE_NONE: + status = _image_read_raw (ctx, &obj, format, width, height, &image); + break; + case MIME_TYPE_PNG: + status = csi_object_as_file (ctx, &obj, &file); + if (_csi_unlikely (status)) + return status; + + status = _image_read_png (file.datum.file, &image); + csi_object_free (ctx, &file); + break; + } + if (_csi_unlikely (status)) + return status; + + image = _image_cached (ctx, image); + } else + image = cairo_image_surface_create (format, width, height); + + *image_out = image; + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_image (csi_t *ctx) +{ + csi_dictionary_t *dict; + cairo_surface_t *image; + csi_status_t status; + csi_object_t obj; + + check (1); + + status = _csi_ostack_get_dictionary (ctx, 0, &dict); + if (_csi_unlikely (status)) + return status; + + status = _image_load_from_dictionary (ctx, dict, &image); + if (_csi_unlikely (status)) + return status; + + pop (1); + obj.type = CSI_OBJECT_TYPE_SURFACE; + obj.datum.surface = image; + return push (&obj); +} + +static csi_status_t +_index (csi_t *ctx) +{ + csi_status_t status; + long n; + + check (1); + + status = _csi_ostack_get_integer (ctx, 0, &n); + if (_csi_unlikely (status)) + return status; + + pop (1); + + check (n); + return _csi_push_ostack_copy (ctx, _csi_peek_ostack (ctx, n)); +} + +static csi_status_t +_integer (csi_t *ctx) +{ + csi_object_t *obj; + int type; + + check (1); + + obj = _csi_peek_ostack (ctx, 0); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_INTEGER: + break; + case CSI_OBJECT_TYPE_REAL: + obj->datum.integer = obj->datum.real; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + obj->type = CSI_OBJECT_TYPE_INTEGER; + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_invert (csi_t *ctx) +{ + csi_object_t obj; + csi_status_t status; + cairo_matrix_t m; + + check (1); + + status = _csi_ostack_get_matrix (ctx, 0, &m); + if (_csi_unlikely (status)) + return status; + + cairo_matrix_invert (&m); + + status = csi_matrix_new_from_matrix (ctx, &obj, &m); + if (_csi_unlikely (status)) + return status; + + pop (1); + + return push (&obj); +} + +static csi_status_t +_le (csi_t *ctx) +{ + csi_status_t status; + csi_object_t *a, *b; + int cmp; + + check (2); + + b = _csi_peek_ostack (ctx, 0); + a = _csi_peek_ostack (ctx, 1); + + status = csi_object_compare (a, b, &cmp); + if (_csi_unlikely (status)) + return status; + + pop (2); + return _csi_push_ostack_boolean (ctx, cmp <= 0); +} + +static csi_status_t +_linear (csi_t *ctx) +{ + csi_object_t obj; + csi_status_t status; + double x1, y1, x2, y2; + + check (4); + + status = _csi_ostack_get_number (ctx, 0, &y2); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &x2); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &y1); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 3, &x1); + if (_csi_unlikely (status)) + return status; + + pop (4); + + obj.type = CSI_OBJECT_TYPE_PATTERN; + obj.datum.pattern = cairo_pattern_create_linear (x1, y1, x2, y2); + return push (&obj); +} + +static csi_status_t +_line_to (csi_t *ctx) +{ + csi_status_t status; + csi_object_t *obj; + int type; + double x, y; + + check (3); + + status = _csi_ostack_get_number (ctx, 0, &y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &x); + if (_csi_unlikely (status)) + return status; + + /* XXX path object */ + + obj = _csi_peek_ostack (ctx, 2); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_CONTEXT: + cairo_line_to (obj->datum.cr, x, y); + break; + case CSI_OBJECT_TYPE_PATTERN: + cairo_mesh_pattern_line_to (obj->datum.pattern, x, y); + break; + } + + pop (2); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_lt (csi_t *ctx) +{ + csi_status_t status; + csi_object_t *a, *b; + int cmp; + + check (2); + + b = _csi_peek_ostack (ctx, 0); + a = _csi_peek_ostack (ctx, 1); + + status = csi_object_compare (a, b, &cmp); + if (_csi_unlikely (status)) + return status; + + pop (2); + return _csi_push_ostack_boolean (ctx, cmp < 0); +} + +static csi_status_t +_mark (csi_t *ctx) +{ + return _csi_push_ostack_mark (ctx); +} + +static csi_status_t +_ne (csi_t *ctx) +{ + csi_object_t *a, *b; + csi_boolean_t v; + + check (2); + + b = _csi_peek_ostack (ctx, 0); + a = _csi_peek_ostack (ctx, 1); + + v = ! csi_object_eq (a, b); + + pop (2); + return _csi_push_ostack_boolean (ctx, v); +} + +static csi_status_t +_neg (csi_t *ctx) +{ + csi_object_t *obj; + int type; + + check (1); + + obj = _csi_peek_ostack (ctx, 0); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_INTEGER: + obj->datum.integer = -obj->datum.integer; + break; + case CSI_OBJECT_TYPE_REAL: + obj->datum.real = -obj->datum.real; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_not (csi_t *ctx) +{ + csi_object_t *obj; + int type; + + check (1); + + obj = _csi_peek_ostack (ctx, 0); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_BOOLEAN: + obj->datum.boolean = ! obj->datum.boolean; + break; + case CSI_OBJECT_TYPE_INTEGER: + obj->type = CSI_OBJECT_TYPE_BOOLEAN; + obj->datum.boolean = ! obj->datum.integer; + break; + case CSI_OBJECT_TYPE_REAL: + obj->type = CSI_OBJECT_TYPE_BOOLEAN; + obj->datum.boolean = obj->datum.real == 0.0; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_new_path (csi_t *ctx) +{ + /* XXX handle path object */ + return _do_cairo_op (ctx, cairo_new_path); +} + +static csi_status_t +_new_sub_path (csi_t *ctx) +{ + /* XXX handle path object */ + return _do_cairo_op (ctx, cairo_new_sub_path); +} + +static csi_status_t +_null (csi_t *ctx) +{ + return _csi_push_ostack_null (ctx); +} + +static csi_status_t +_mask (csi_t *ctx) +{ + cairo_t *cr; + cairo_pattern_t *pattern = NULL; /* silence the compiler */ + csi_status_t status; + + check (2); + + status = _csi_ostack_get_pattern (ctx, 0, &pattern); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_mask (cr, pattern); + pop (1); + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_matrix (csi_t *ctx) +{ + csi_object_t *obj, matrix; + double v[6]; + csi_status_t status; + int n; + + check (1); + + obj = _csi_peek_ostack (ctx, 0); + if (csi_object_is_number (obj)) { + check (6); + + for (n = 6; n--; ) { + status = _csi_ostack_get_number (ctx, 5-n, &v[n]); + if (_csi_unlikely (status)) + return status; + } + status = csi_matrix_new_from_values (ctx, &matrix, v); + if (_csi_unlikely (status)) + return status; + + pop (6); + } else { + csi_array_t *array; + + status = _csi_ostack_get_array (ctx, 0, &array); + if (_csi_unlikely (status)) + return status; + + status = csi_matrix_new_from_array (ctx, &matrix, array); + if (_csi_unlikely (status)) + return status; + + pop (1); + } + + return push (&matrix); +} + +static csi_status_t +_map_to_image (csi_t *ctx) +{ + csi_object_t obj; + csi_array_t *array; + csi_status_t status; + cairo_rectangle_int_t extents, *r; + cairo_surface_t *surface; + + check (2); + + status = _csi_ostack_get_array (ctx, 0, &array); + if (_csi_unlikely (status)) + return status; + + status = _csi_ostack_get_surface (ctx, 1, &surface); + if (_csi_unlikely (status)) + return status; + + switch (array->stack.len) { + case 0: + r = NULL; + break; + case 4: + extents.x = floor (_csi_object_as_real (&array->stack.objects[0])); + extents.y = floor (_csi_object_as_real (&array->stack.objects[1])); + extents.width = ceil (_csi_object_as_real (&array->stack.objects[2])); + extents.height = ceil (_csi_object_as_real (&array->stack.objects[3])); + r = &extents; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + obj.type = CSI_OBJECT_TYPE_SURFACE; + obj.datum.surface = cairo_surface_reference (cairo_surface_map_to_image (surface, r)); + pop (1); + return push (&obj); +} + +static csi_status_t +_unmap_image (csi_t *ctx) +{ + cairo_surface_t *surface, *image; + csi_status_t status; + + check (2); + + status = _csi_ostack_get_surface (ctx, 0, &image); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_surface (ctx, 1, &surface); + if (_csi_unlikely (status)) + return status; + + cairo_surface_unmap_image (surface, image); + + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_mesh (csi_t *ctx) +{ + csi_object_t obj; + + obj.type = CSI_OBJECT_TYPE_PATTERN; + obj.datum.pattern = cairo_pattern_create_mesh (); + return push (&obj); +} + +static csi_status_t +_mesh_begin_patch (csi_t *ctx) +{ + csi_status_t status; + cairo_pattern_t *pattern = NULL; /* silence the compiler */ + + check (1); + + status = _csi_ostack_get_pattern (ctx, 0, &pattern); + if (_csi_unlikely (status)) + return status; + + cairo_mesh_pattern_begin_patch (pattern); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_mesh_end_patch (csi_t *ctx) +{ + csi_status_t status; + cairo_pattern_t *pattern = NULL; /* silence the compiler */ + + check (1); + + status = _csi_ostack_get_pattern (ctx, 0, &pattern); + if (_csi_unlikely (status)) + return status; + + cairo_mesh_pattern_end_patch (pattern); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_mesh_set_control_point (csi_t *ctx) +{ + csi_status_t status; + double x, y; + csi_integer_t point; + cairo_pattern_t *pattern = NULL; /* silence the compiler */ + + check (4); + + status = _csi_ostack_get_number (ctx, 0, &y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &x); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_integer (ctx, 2, &point); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_pattern (ctx, 3, &pattern); + if (_csi_unlikely (status)) + return status; + + cairo_mesh_pattern_set_control_point (pattern, point, x, y); + + pop (3); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_mesh_set_corner_color (csi_t *ctx) +{ + csi_status_t status; + double r, g, b, a; + csi_integer_t corner; + cairo_pattern_t *pattern = NULL; /* silence the compiler */ + + check (6); + + status = _csi_ostack_get_number (ctx, 0, &a); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &b); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &g); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 3, &r); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_integer (ctx, 4, &corner); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_pattern (ctx, 5, &pattern); + if (_csi_unlikely (status)) + return status; + + cairo_mesh_pattern_set_corner_color_rgba (pattern, corner, r, g, b, a); + + pop (5); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_mod (csi_t *ctx) +{ + csi_integer_t x, y; + csi_status_t status; + + check (2); + + status = _csi_ostack_get_integer (ctx, 0, &y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_integer (ctx, 1, &x); + if (_csi_unlikely (status)) + return status; + + pop (2); + return _csi_push_ostack_integer (ctx, x % y); +} + +static csi_status_t +_move_to (csi_t *ctx) +{ + csi_status_t status; + csi_object_t *obj; + int type; + double x, y; + + check (3); + + status = _csi_ostack_get_number (ctx, 0, &y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &x); + if (_csi_unlikely (status)) + return status; + + obj = _csi_peek_ostack (ctx, 2); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_CONTEXT: + cairo_move_to (obj->datum.cr, x, y); + break; + case CSI_OBJECT_TYPE_PATTERN: + cairo_mesh_pattern_move_to (obj->datum.pattern, x, y); + break; + + /* XXX path object */ + } + + pop (2); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_mul (csi_t *ctx) +{ + csi_object_t *A; + csi_object_t *B; + csi_object_type_t type_a, type_b; + + check (2); + + B = _csi_peek_ostack (ctx, 0); + A = _csi_peek_ostack (ctx, 1); + + type_a = csi_object_get_type (A); + if (_csi_unlikely (! (type_a == CSI_OBJECT_TYPE_INTEGER || + type_a == CSI_OBJECT_TYPE_REAL))) + { + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + type_b = csi_object_get_type (B); + if (_csi_unlikely (! (type_b == CSI_OBJECT_TYPE_INTEGER || + type_b == CSI_OBJECT_TYPE_REAL))) + { + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (2); + + if (type_a == CSI_OBJECT_TYPE_REAL && + type_b == CSI_OBJECT_TYPE_REAL) + { + return _csi_push_ostack_real (ctx, A->datum.real * B->datum.real); + + } + else if (type_a == CSI_OBJECT_TYPE_INTEGER && + type_b == CSI_OBJECT_TYPE_INTEGER) + { + return _csi_push_ostack_integer (ctx, + A->datum.integer * B->datum.integer); + } + else + { + double v; + + if (type_a == CSI_OBJECT_TYPE_REAL) + v = A->datum.real; + else + v = A->datum.integer; + + if (type_b == CSI_OBJECT_TYPE_REAL) + v *= B->datum.real; + else + v *= B->datum.integer; + + return _csi_push_ostack_real (ctx, v); + } +} + +static csi_status_t +_or (csi_t *ctx) +{ + csi_object_t *a, *b; + int type; + + check (2); + + a = _csi_peek_ostack (ctx, 0); + b = _csi_peek_ostack (ctx, 1); + if (_csi_unlikely (csi_object_get_type (a) != csi_object_get_type (b))) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + pop (2); + type = csi_object_get_type (a); + switch (type) { + case CSI_OBJECT_TYPE_INTEGER: + return _csi_push_ostack_integer (ctx, + a->datum.integer | b->datum.integer); + case CSI_OBJECT_TYPE_BOOLEAN: + return _csi_push_ostack_boolean (ctx, + a->datum.boolean | b->datum.boolean); + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } +} + +static csi_status_t +_paint (csi_t *ctx) +{ + return _do_cairo_op (ctx, cairo_paint); +} + +static csi_status_t +_paint_with_alpha (csi_t *ctx) +{ + cairo_t *cr; + csi_status_t status; + double alpha; + + check (2); + + status = _csi_ostack_get_number (ctx, 0, &alpha); + if (_csi_unlikely (status)) + return status; + + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_paint_with_alpha (cr, alpha); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_pattern (csi_t *ctx) +{ + csi_object_t obj; + csi_status_t status; + cairo_surface_t *surface; + + check (1); + + status = _csi_ostack_get_surface (ctx, 0, &surface); + if (_csi_unlikely (status)) + return status; + + obj.type = CSI_OBJECT_TYPE_PATTERN; + obj.datum.pattern = cairo_pattern_create_for_surface (surface); + + pop (1); + return push (&obj); +} + +static csi_status_t +_pop (csi_t *ctx) +{ + check (1); + pop (1); + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_pop_group (csi_t *ctx) +{ + csi_object_t obj; + csi_status_t status; + cairo_t *cr; + + check (1); + + status = _csi_ostack_get_context (ctx, 0, &cr); + if (_csi_unlikely (status)) + return status; + + obj.type = CSI_OBJECT_TYPE_PATTERN; + obj.datum.pattern = cairo_pop_group (cr); + + return push (&obj); +} + +static csi_status_t +_push_group (csi_t *ctx) +{ + csi_status_t status; + cairo_t *cr; + long content; + + check (2); + + status = _csi_ostack_get_integer (ctx, 0, &content); + if (_csi_unlikely (status)) + return status; + + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_push_group_with_content (cr, content); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_radial (csi_t *ctx) +{ + csi_object_t obj; + csi_status_t status; + double x1, y1, r1, x2, y2, r2; + + check (6); + + status = _csi_ostack_get_number (ctx, 0, &r2); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &y2); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &x2); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 3, &r1); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 4, &y1); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 5, &x1); + if (_csi_unlikely (status)) + return status; + + obj.type = CSI_OBJECT_TYPE_PATTERN; + obj.datum.pattern = cairo_pattern_create_radial (x1, y1, r1, x2, y2, r2); + pop (6); + return push (&obj); +} + +static csi_status_t +_rectangle (csi_t *ctx) +{ + csi_status_t status; + double x, y; + double w, h; + cairo_t *cr; + + check (5); + + status = _csi_ostack_get_number (ctx, 0, &h); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &w); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 3, &x); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 4, &cr); + if (_csi_unlikely (status)) + return status; + + /* XXX path object */ + + cairo_rectangle (cr, x, y, w, h); + pop(4); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_rel_curve_to (csi_t *ctx) +{ + csi_status_t status; + double x1, y1; + double x2, y2; + double x3, y3; + cairo_t *cr; + + check (7); + + status = _csi_ostack_get_number (ctx, 0, &y3); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &x3); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &y2); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 3, &x2); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 4, &y1); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 5, &x1); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 6, &cr); + if (_csi_unlikely (status)) + return status; + + /* XXX path object */ + + cairo_rel_curve_to (cr, x1, y1, x2, y2, x3, y3); + pop (6); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_rel_line_to (csi_t *ctx) +{ + csi_status_t status; + double x, y; + cairo_t *cr; + + check (3); + + status = _csi_ostack_get_number (ctx, 0, &y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &x); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 2, &cr); + if (_csi_unlikely (status)) + return status; + + /* XXX path object */ + + cairo_rel_line_to (cr, x, y); + pop (2); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_rel_move_to (csi_t *ctx) +{ + csi_status_t status; + double x, y; + cairo_t *cr; + + check (3); + + status = _csi_ostack_get_number (ctx, 0, &y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &x); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 2, &cr); + if (_csi_unlikely (status)) + return status; + + /* XXX path object */ + cairo_rel_move_to (cr, x, y); + pop (2); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_repeat (csi_t *ctx) +{ + csi_array_t *proc; + csi_integer_t count; + csi_status_t status; + + check (2); + + status = _csi_ostack_get_procedure (ctx, 0, &proc); + if (_csi_unlikely (status)) + return status; + + status = _csi_ostack_get_integer (ctx, 1, &count); + if (_csi_unlikely (status)) + return status; + + if (_csi_unlikely (count < 0)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + proc->base.ref++; + pop (2); + + while (count--) { + status = _csi_array_execute (ctx, proc); + if (_csi_unlikely (status)) + break; + } + + if (--proc->base.ref == 0) + csi_array_free (ctx, proc); + + return status; +} + +static csi_status_t +_reset_clip (csi_t *ctx) +{ + return _do_cairo_op (ctx, cairo_reset_clip); +} + +static csi_status_t +_restore (csi_t *ctx) +{ + return _do_cairo_op (ctx, cairo_restore); +} + +static csi_status_t +_rgb (csi_t *ctx) +{ + csi_object_t obj; + csi_status_t status; + double r,g,b; + + check (3); + + status = _csi_ostack_get_number (ctx, 0, &b); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &g); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &r); + if (_csi_unlikely (status)) + return status; + + obj.type = CSI_OBJECT_TYPE_PATTERN; + obj.datum.pattern = cairo_pattern_create_rgb (r, g, b); + pop (3); + return push (&obj); +} + +static csi_status_t +_rgba (csi_t *ctx) +{ + csi_object_t obj; + csi_status_t status; + double r,g,b,a; + + check (4); + + status = _csi_ostack_get_number (ctx, 0, &a); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &b); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &g); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 3, &r); + if (_csi_unlikely (status)) + return status; + + obj.type = CSI_OBJECT_TYPE_PATTERN; + obj.datum.pattern = cairo_pattern_create_rgba (r, g, b, a); + pop (4); + return push (&obj); +} + +static csi_status_t +_roll (csi_t *ctx) +{ + csi_status_t status; + long j, n; + + check (2); + + status = _csi_ostack_get_integer (ctx, 0, &j); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_integer (ctx, 1, &n); + if (_csi_unlikely (status)) + return status; + + pop (2); + check (n); + return _csi_stack_roll (ctx, &ctx->ostack, j, n); +} + +static csi_status_t +_rotate (csi_t *ctx) +{ + csi_object_t *obj; + csi_status_t status; + double theta; + int type; + + check (2); + + status = _csi_ostack_get_number (ctx, 0, &theta); + if (_csi_unlikely (status)) + return status; + + obj = _csi_peek_ostack (ctx, 1); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_CONTEXT: + cairo_rotate (obj->datum.cr, theta); + break; + + case CSI_OBJECT_TYPE_PATTERN: + { + cairo_matrix_t ctm; + cairo_pattern_get_matrix (obj->datum.pattern, &ctm); + cairo_matrix_rotate (&ctm, theta); + cairo_pattern_set_matrix (obj->datum.pattern, &ctm); + } + break; + + + case CSI_OBJECT_TYPE_MATRIX: + cairo_matrix_rotate (&obj->datum.matrix->matrix, theta); + break; + + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_save (csi_t *ctx) +{ + return _do_cairo_op (ctx, cairo_save); +} + +static csi_status_t +_scale (csi_t *ctx) +{ + csi_object_t *obj; + csi_status_t status; + double x, y; + int type; + + check (3); + + status = _csi_ostack_get_number (ctx, 0, &y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &x); + if (_csi_unlikely (status)) + return status; + + obj = _csi_peek_ostack (ctx, 2); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_CONTEXT: + cairo_scale (obj->datum.cr, x, y); + break; + + case CSI_OBJECT_TYPE_PATTERN: + { + cairo_matrix_t ctm; + cairo_pattern_get_matrix (obj->datum.pattern, &ctm); + cairo_matrix_scale (&ctm, x, y); + cairo_pattern_set_matrix (obj->datum.pattern, &ctm); + } + break; + + + case CSI_OBJECT_TYPE_MATRIX: + cairo_matrix_scale (&obj->datum.matrix->matrix, x, y); + break; + + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (2); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_font_options_load_from_dictionary (csi_t *ctx, + csi_dictionary_t *dict, + cairo_font_options_t *options) +{ + const struct { + const char *key; + void (*setter) (cairo_font_options_t *, int val); + } properties[] = { + { "antialias", + (void (*)(cairo_font_options_t *, int val)) + cairo_font_options_set_antialias }, + { "subpixel-order", + (void (*)(cairo_font_options_t *, int val)) + cairo_font_options_set_subpixel_order }, + { "hint-style", + (void (*)(cairo_font_options_t *, int val)) + cairo_font_options_set_hint_style }, + { "hint-metrics", + (void (*)(cairo_font_options_t *, int val)) + cairo_font_options_set_hint_metrics }, + { NULL, NULL }, + }, *prop = properties; + + while (prop->key != NULL) { + csi_object_t key, value; + csi_status_t status; + + status = csi_name_new_static (ctx, &key, prop->key); + if (_csi_unlikely (status)) + return status; + + if (csi_dictionary_has (dict, key.datum.name)) { + status = csi_dictionary_get (ctx, dict, key.datum.name, &value); + if (_csi_unlikely (status)) + return status; + + if (_csi_unlikely (csi_object_get_type (&value) != + CSI_OBJECT_TYPE_INTEGER)) + { + csi_object_free (ctx, &value); + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + prop->setter (options, value.datum.integer); + } + + prop++; + } + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_scaled_font (csi_t *ctx) +{ + csi_object_t obj; + csi_dictionary_t *dict; + cairo_font_face_t *font_face = NULL; /* silence the compiler */ + cairo_matrix_t font_matrix, ctm; + cairo_font_options_t *options; + csi_status_t status; + + check (4); + + status = _csi_ostack_get_dictionary (ctx, 0, &dict); + if (_csi_unlikely (status)) + return status; + options = cairo_font_options_create (); + status = _font_options_load_from_dictionary (ctx, dict, options); + if (_csi_unlikely (status)) { + cairo_font_options_destroy (options); + return status; + } + + status = _csi_ostack_get_matrix (ctx, 1, &ctm); + if (_csi_unlikely (status)) { + cairo_font_options_destroy (options); + return status; + } + + status = _csi_ostack_get_matrix (ctx, 2, &font_matrix); + if (_csi_unlikely (status)) { + cairo_font_options_destroy (options); + return status; + } + + status = _csi_ostack_get_font_face (ctx, 3, &font_face); + if (_csi_unlikely (status)) { + cairo_font_options_destroy (options); + return status; + } + + obj.type = CSI_OBJECT_TYPE_SCALED_FONT; + obj.datum.scaled_font = cairo_scaled_font_create (font_face, + &font_matrix, + &ctm, + options); + cairo_font_options_destroy (options); + pop (4); + return push (&obj); +} + +static csi_status_t +_select_font_face (csi_t *ctx) +{ + cairo_t *cr; + long weight; + long slant; + csi_string_t *family; + csi_status_t status; + + check (4); + + status = _csi_ostack_get_integer (ctx, 0, &weight); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_integer (ctx, 1, &slant); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_string (ctx, 2, &family); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 3, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_select_font_face (cr, family->string, slant, weight); + pop (3); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_context_set (csi_t *ctx, + cairo_t *cr, + csi_name_t key, + csi_object_t *obj) +{ + if (strcmp ((char *) key, "source") == 0) { + if (_csi_unlikely (csi_object_get_type (obj) != + CSI_OBJECT_TYPE_PATTERN)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + cairo_set_source (cr, obj->datum.pattern); + return CSI_STATUS_SUCCESS; + } + + if (strcmp ((char *) key, "scaled-font") == 0) { + if (_csi_unlikely (csi_object_get_type (obj) != + CSI_OBJECT_TYPE_SCALED_FONT)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + cairo_set_scaled_font (cr, obj->datum.scaled_font); + return CSI_STATUS_SUCCESS; + } + + if (strcmp ((char *) key, "font-face") == 0) { + if (_csi_unlikely (csi_object_get_type (obj) != + CSI_OBJECT_TYPE_FONT)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + cairo_set_font_face (cr, obj->datum.font_face); + return CSI_STATUS_SUCCESS; + } + + /* return _proxy_set()? */ + return _csi_error (CSI_STATUS_INVALID_SCRIPT); +} + +static csi_status_t +_set (csi_t *ctx) +{ + csi_object_t *key, *value, *dst; + csi_status_t status; + int type; + + check (3); + + value = _csi_peek_ostack (ctx, 0); + key = _csi_peek_ostack (ctx, 1); + dst = _csi_peek_ostack (ctx, 2); + + type = csi_object_get_type (dst); + switch (type) { + case CSI_OBJECT_TYPE_DICTIONARY: + if (_csi_unlikely (csi_object_get_type (key) != + CSI_OBJECT_TYPE_NAME)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + status = csi_dictionary_put (ctx, + dst->datum.dictionary, + key->datum.name, + value); + break; + case CSI_OBJECT_TYPE_ARRAY: + if (_csi_unlikely (csi_object_get_type (key) != + CSI_OBJECT_TYPE_INTEGER)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + status = csi_array_put (ctx, + dst->datum.array, + key->datum.integer, + value); + break; + + case CSI_OBJECT_TYPE_CONTEXT: + if (_csi_unlikely (csi_object_get_type (key) != + CSI_OBJECT_TYPE_NAME)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + status = _context_set (ctx, + dst->datum.cr, + key->datum.name, + value); + break; + + case CSI_OBJECT_TYPE_STRING: +#if 0 + status = csi_string_put (dst, key, value); + break; +#endif + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (2); + return status; +} + +static csi_status_t +_set_antialias (csi_t *ctx) +{ + csi_status_t status; + cairo_t *cr; + long antialias; + + check (2); + + status = _csi_ostack_get_integer (ctx, 0, &antialias); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_antialias (cr, antialias); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_dash (csi_t *ctx) +{ + csi_array_t *array; + csi_status_t status; + cairo_t *cr; + double offset; + + check (3); + + status = _csi_ostack_get_number (ctx, 0, &offset); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_array (ctx, 1, &array); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 2, &cr); + if (_csi_unlikely (status)) + return status; + + if (array->stack.len == 0) { + cairo_set_dash (cr, NULL, 0., 0.); + } else { + double stack_dashes[8]; + double *dashes; + csi_integer_t n; + + if (_csi_likely (array->stack.len < ARRAY_LENGTH (stack_dashes))) { + dashes = stack_dashes; + } else { + if (_csi_unlikely ((unsigned) array->stack.len >= INT_MAX / sizeof (double))) + return _csi_error (CSI_STATUS_NO_MEMORY); + dashes = _csi_alloc (ctx, sizeof (double) * array->stack.len); + if (_csi_unlikely (dashes == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + } + + for (n = 0; n < array->stack.len; n++) { + if (_csi_unlikely (! csi_object_is_number + (&array->stack.objects[n]))) + { + if (dashes != stack_dashes) + _csi_free (ctx, dashes); + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + dashes[n] = csi_number_get_value (&array->stack.objects[n]); + } + + cairo_set_dash (cr, dashes, n, offset); + + if (dashes != stack_dashes) + _csi_free (ctx, dashes); + } + + pop (2); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_device_offset (csi_t *ctx) +{ + csi_status_t status; + cairo_surface_t *surface; + double x, y; + + check (3); + + status = _csi_ostack_get_number (ctx, 0, &y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &x); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_surface (ctx, 2, &surface); + if (_csi_unlikely (status)) + return status; + + cairo_surface_set_device_offset (surface, x, y); + pop (2); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_device_scale (csi_t *ctx) +{ + csi_status_t status; + cairo_surface_t *surface; + double x, y; + + check (3); + + status = _csi_ostack_get_number (ctx, 0, &y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &x); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_surface (ctx, 2, &surface); + if (_csi_unlikely (status)) + return status; + + cairo_surface_set_device_scale (surface, x, y); + pop (2); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_extend (csi_t *ctx) +{ + csi_status_t status; + csi_object_t *obj; + long extend; + int type; + + check (2); + + status = _csi_ostack_get_integer (ctx, 0, &extend); + if (_csi_unlikely (status)) + return status; + + obj = _csi_peek_ostack (ctx, 1); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_CONTEXT: + cairo_pattern_set_extend (cairo_get_source (obj->datum.cr), + extend); + break; + case CSI_OBJECT_TYPE_PATTERN: + cairo_pattern_set_extend (obj->datum.pattern, extend); + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_fallback_resolution (csi_t *ctx) +{ + csi_status_t status; + cairo_surface_t *surface; + double dpi_x, dpi_y; + + check (3); + + status = _csi_ostack_get_number (ctx, 0, &dpi_y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &dpi_x); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_surface (ctx, 2, &surface); + if (_csi_unlikely (status)) + return status; + + cairo_surface_set_fallback_resolution (surface, dpi_x, dpi_y); + pop (2); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_fill_rule (csi_t *ctx) +{ + csi_status_t status; + cairo_t *cr; + long fill_rule; + + check (2); + + status = _csi_ostack_get_integer (ctx, 0, &fill_rule); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_fill_rule (cr, fill_rule); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_filter (csi_t *ctx) +{ + csi_status_t status; + csi_object_t *obj; + long filter; + int type; + + check (2); + + status = _csi_ostack_get_integer (ctx, 0, &filter); + if (_csi_unlikely (status)) + return status; + + obj = _csi_peek_ostack (ctx, 1); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_CONTEXT: + cairo_pattern_set_filter (cairo_get_source (obj->datum.cr), + filter); + break; + case CSI_OBJECT_TYPE_PATTERN: + cairo_pattern_set_filter (obj->datum.pattern, filter); + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_font_face (csi_t *ctx) +{ + cairo_t *cr; + cairo_font_face_t *font = NULL; /* silence the compiler */ + csi_status_t status; + + check (2); + + status = _csi_ostack_get_font_face (ctx, 0, &font); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_font_face (cr, font); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_font_options (csi_t *ctx) +{ + csi_status_t status; + cairo_t *cr; + csi_dictionary_t *dict; + cairo_font_options_t *options; + + check (2); + + status = _csi_ostack_get_dictionary (ctx, 0, &dict); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + options = cairo_font_options_create (); + status = _font_options_load_from_dictionary (ctx, dict, options); + if (_csi_unlikely (status)) + return status; + + cairo_set_font_options (cr, options); + cairo_font_options_destroy (options); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_font_matrix (csi_t *ctx) +{ + csi_status_t status; + cairo_t *cr; + cairo_matrix_t m; + + check (2); + + status = _csi_ostack_get_matrix (ctx, 0, &m); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_font_matrix (cr, &m); + pop(1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_font_size (csi_t *ctx) +{ + csi_status_t status; + cairo_t *cr; + double size; + + check (2); + + status = _csi_ostack_get_number (ctx, 0, &size); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_font_size (cr, size); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_line_cap (csi_t *ctx) +{ + csi_status_t status; + cairo_t *cr; + long line_cap; + + check (2); + + status = _csi_ostack_get_integer (ctx, 0, &line_cap); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_line_cap (cr, line_cap); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_line_join (csi_t *ctx) +{ + csi_status_t status; + cairo_t *cr; + long line_join; + + status = _csi_ostack_get_integer (ctx, 0, &line_join); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_line_join (cr, line_join); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_line_width (csi_t *ctx) +{ + csi_status_t status; + cairo_t *cr; + double line_width; + + check (2); + + status = _csi_ostack_get_number (ctx, 0, &line_width); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_line_width (cr, line_width); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_hairline (csi_t *ctx) +{ + csi_status_t status; + cairo_t *cr; + cairo_bool_t set_hairline = FALSE; /* silence the compiler */ + + check (2); + + status = _csi_ostack_get_boolean (ctx, 0, &set_hairline); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_hairline (cr, set_hairline); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_matrix (csi_t *ctx) +{ + csi_object_t *obj; + csi_status_t status; + cairo_matrix_t m; + int type; + + check (2); + + status = _csi_ostack_get_matrix (ctx, 0, &m); + if (_csi_unlikely (status)) + return status; + + obj = _csi_peek_ostack (ctx, 1); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_CONTEXT: + cairo_set_matrix (obj->datum.cr, &m); + break; + case CSI_OBJECT_TYPE_PATTERN: + cairo_pattern_set_matrix (obj->datum.pattern, &m); + break; + case CSI_OBJECT_TYPE_MATRIX: + obj->datum.matrix->matrix = m; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (1); + return CSI_STATUS_SUCCESS; +} + +struct _mime_tag { + csi_t *ctx; + csi_string_t *source; +}; +static void +_mime_tag_destroy (void *closure) +{ + struct _mime_tag *tag = closure; + + if (--tag->source->base.ref) + csi_string_free (tag->ctx, tag->source); + + _csi_slab_free (tag->ctx, tag, sizeof (struct _mime_tag)); +} + +static csi_status_t +_set_mime_data (csi_t *ctx) +{ + csi_status_t status; + csi_object_t *obj; + const char *mime = NULL; /* silence the compiler */ + csi_object_t source; + cairo_surface_t *surface; + struct _mime_tag *tag; + int type; + + check (3); + + obj = _csi_peek_ostack (ctx, 0); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_FILE: + status = _csi_file_as_string (ctx, obj->datum.file, &source); + if (_csi_unlikely (status)) + return status; + + break; + + case CSI_OBJECT_TYPE_STRING: + source = *csi_object_reference (obj); + break; + + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + status = _csi_ostack_get_string_constant (ctx, 1, &mime); + if (_csi_unlikely (status)) + return status; + + status = _csi_ostack_get_surface (ctx, 2, &surface); + if (_csi_unlikely (status)) + return status; + + + /* XXX free source */ + tag = _csi_slab_alloc (ctx, sizeof (struct _mime_tag)); + if (_csi_unlikely (tag == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + tag->ctx = cairo_script_interpreter_reference (ctx); + tag->source = source.datum.string; + tag->source->base.ref++; + + status = cairo_surface_set_mime_data (surface, + mime, + (uint8_t *) + source.datum.string->string, + source.datum.string->len, + _mime_tag_destroy, tag); + if (_csi_unlikely (status)) { + _mime_tag_destroy (tag); + return status; + } + + pop (2); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_miter_limit (csi_t *ctx) +{ + csi_status_t status; + cairo_t *cr; + double miter_limit; + + check (2); + + status = _csi_ostack_get_number (ctx, 0, &miter_limit); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_miter_limit (cr, miter_limit); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_operator (csi_t *ctx) +{ + cairo_t *cr; + long val; + csi_status_t status; + + check (2); + + status = _csi_ostack_get_integer (ctx, 0, &val); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_operator (cr, val); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_scaled_font (csi_t *ctx) +{ + cairo_t *cr; + cairo_scaled_font_t *font = NULL; /* silence the compiler */ + csi_status_t status; + + check (2); + + status = _csi_ostack_get_scaled_font (ctx, 0, &font); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_scaled_font (cr, font); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_source (csi_t *ctx) +{ + cairo_t *cr; + cairo_pattern_t *pattern = NULL; /* silence the compiler */ + csi_status_t status; + + check (2); + + status = _csi_ostack_get_pattern (ctx, 0, &pattern); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_source (cr, pattern); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_boolean_t +_matching_images (cairo_surface_t *a, cairo_surface_t *b) +{ + cairo_format_t format_a, format_b; + + if (cairo_surface_get_type (a) != CAIRO_SURFACE_TYPE_IMAGE) + return FALSE; + if (cairo_surface_get_type (b) != CAIRO_SURFACE_TYPE_IMAGE) + return FALSE; + + if (cairo_image_surface_get_height (a) != cairo_image_surface_get_height (b)) + return FALSE; + + if (cairo_image_surface_get_width (a) != cairo_image_surface_get_width (b)) + return FALSE; + + format_a = cairo_image_surface_get_format (a); + if (format_a == CAIRO_FORMAT_RGB24) + format_a = CAIRO_FORMAT_ARGB32; + + format_b = cairo_image_surface_get_format (b); + if (format_b == CAIRO_FORMAT_RGB24) + format_b = CAIRO_FORMAT_ARGB32; + + if (format_a != format_b) + return FALSE; + + return TRUE; +} + +static csi_status_t +_set_source_image (csi_t *ctx) +{ + csi_status_t status; + cairo_surface_t *surface; + cairo_surface_t *source; + + check (2); + + status = _csi_ostack_get_surface (ctx, 0, &source); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_surface (ctx, 1, &surface); + if (_csi_unlikely (status)) + return status; + + /* Catch the most frequent use of simply uploading pixel data, + * principally to remove the pixman ops from the profiles. + */ + if (_csi_likely (_matching_images (surface, source))) { + if (cairo_surface_get_reference_count (surface) == 1 && + cairo_surface_get_reference_count (source) == 1) + { + _csi_peek_ostack (ctx, 0)->datum.surface = surface; + _csi_peek_ostack (ctx, 1)->datum.surface = source; + } + else + { + cairo_surface_flush (surface); + memcpy (cairo_image_surface_get_data (surface), + cairo_image_surface_get_data (source), + cairo_image_surface_get_height (source) * cairo_image_surface_get_stride (source)); + cairo_surface_mark_dirty (surface); + } + } else { + cairo_t *cr; + + cr = cairo_create (surface); + cairo_set_source_surface (cr, source, 0, 0); + cairo_paint (cr); + cairo_destroy (cr); + } + + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_source_rgb (csi_t *ctx) +{ + csi_status_t status; + double r,g,b; + cairo_t *cr; + + check (4); + + status = _csi_ostack_get_number (ctx, 0, &b); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &g); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &r); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 3, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_source_rgb (cr, r, g, b); + pop (3); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_source_rgba (csi_t *ctx) +{ + csi_status_t status; + double r,g,b,a; + cairo_t *cr; + + check (5); + + status = _csi_ostack_get_number (ctx, 0, &a); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &b); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &g); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 3, &r); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 4, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_source_rgba (cr, r, g, b, a); + pop (4); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_set_tolerance (csi_t *ctx) +{ + csi_status_t status; + cairo_t *cr; + double tolerance; + + check (2); + + status = _csi_ostack_get_number (ctx, 0, &tolerance); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_set_tolerance (cr, tolerance); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_transform (csi_t *ctx) +{ + csi_object_t *obj; + csi_status_t status; + cairo_matrix_t m; + int type; + + check (2); + + status = _csi_ostack_get_matrix (ctx, 0, &m); + if (_csi_unlikely (status)) + return status; + + obj = _csi_peek_ostack (ctx, 1); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_CONTEXT: + cairo_transform (obj->datum.cr, &m); + break; + case CSI_OBJECT_TYPE_PATTERN: + { + cairo_matrix_t ctm; + cairo_pattern_get_matrix (obj->datum.pattern, &ctm); + cairo_matrix_multiply (&ctm, &m, &ctm); + cairo_pattern_set_matrix (obj->datum.pattern, &ctm); + } + break; + case CSI_OBJECT_TYPE_MATRIX: + cairo_matrix_multiply (&obj->datum.matrix->matrix, + &m, + &obj->datum.matrix->matrix); + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_translate (csi_t *ctx) +{ + csi_object_t *obj; + csi_status_t status; + double x, y; + int type; + + check (3); + + status = _csi_ostack_get_number (ctx, 0, &y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &x); + if (_csi_unlikely (status)) + return status; + + obj = _csi_peek_ostack (ctx, 2); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_CONTEXT: + cairo_translate (obj->datum.cr, x, y); + break; + + case CSI_OBJECT_TYPE_PATTERN: + { + cairo_matrix_t ctm; + cairo_pattern_get_matrix (obj->datum.pattern, &ctm); + cairo_matrix_translate (&ctm, x, y); + cairo_pattern_set_matrix (obj->datum.pattern, &ctm); + } + break; + + + case CSI_OBJECT_TYPE_MATRIX: + cairo_matrix_translate (&obj->datum.matrix->matrix, x, y); + break; + + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (2); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_true (csi_t *ctx) +{ + return _csi_push_ostack_boolean (ctx, TRUE); +} + +static csi_status_t +_show_page (csi_t *ctx) +{ + csi_object_t *obj; + int type; + + check (1); + + obj = _csi_peek_ostack (ctx, 0); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_CONTEXT: + cairo_show_page (obj->datum.cr); + if (ctx->hooks.copy_page != NULL) + ctx->hooks.copy_page (ctx->hooks.closure, obj->datum.cr); + break; + case CSI_OBJECT_TYPE_SURFACE: + cairo_surface_show_page (obj->datum.surface); + /* XXX hook? */ + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_similar (csi_t *ctx) +{ + csi_object_t obj; + long content; + double width, height; + cairo_surface_t *other; + csi_status_t status; + + check (4); + + status = _csi_ostack_get_integer (ctx, 0, &content); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &height); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &width); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_surface (ctx, 3, &other); + if (_csi_unlikely (status)) + return status; + + /* silently fix-up a common bug when writing CS */ + if ((content & CAIRO_CONTENT_COLOR_ALPHA) == 0) { + if (_csi_unlikely (content & ~CAIRO_CONTENT_COLOR_ALPHA)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + switch ((int) content) { + default: + case CAIRO_FORMAT_ARGB32: + content = CAIRO_CONTENT_COLOR_ALPHA; + break; + case CAIRO_FORMAT_RGB16_565: + case CAIRO_FORMAT_RGB24: + content = CAIRO_CONTENT_COLOR; + break; + case CAIRO_FORMAT_A8: + case CAIRO_FORMAT_A1: + content = CAIRO_CONTENT_ALPHA; + break; + } + } + + obj.type = CSI_OBJECT_TYPE_SURFACE; + obj.datum.surface = cairo_surface_create_similar (other, + content, width, height); + pop (4); + return push (&obj); +} + +static csi_status_t +_similar_image (csi_t *ctx) +{ + csi_object_t obj; + long format; + double width, height; + cairo_surface_t *other; + csi_status_t status; + + check (4); + + status = _csi_ostack_get_number (ctx, 0, &height); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &width); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_integer (ctx, 2, &format); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_surface (ctx, 3, &other); + if (_csi_unlikely (status)) + return status; + + obj.type = CSI_OBJECT_TYPE_SURFACE; + obj.datum.surface = cairo_surface_create_similar_image (other, + format, + width, height); + pop (4); + return push (&obj); +} + +static csi_status_t +_subsurface (csi_t *ctx) +{ + csi_object_t obj; + double x, y, width, height; + cairo_surface_t *target; + csi_status_t status; + + check (5); + + status = _csi_ostack_get_number (ctx, 0, &height); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 1, &width); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 2, &y); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_number (ctx, 3, &x); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_surface (ctx, 4, &target); + if (_csi_unlikely (status)) + return status; + + obj.type = CSI_OBJECT_TYPE_SURFACE; + obj.datum.surface = cairo_surface_create_for_rectangle (target, x, y, width, height); + pop (5); + return push (&obj); +} + +static csi_status_t +_show_text (csi_t *ctx) +{ + csi_status_t status; + csi_string_t *text; + cairo_t *cr; + + check (2); + + status = _csi_ostack_get_string (ctx, 0, &text); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_show_text (cr, text->string); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_show_glyphs (csi_t *ctx) +{ + csi_array_t *array; + csi_status_t status; + cairo_t *cr; + cairo_glyph_t stack_glyphs[256], *glyphs; + csi_integer_t nglyphs, i; + + check (2); + + status = _csi_ostack_get_array (ctx, 0, &array); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + /* count glyphs */ + nglyphs = 0; + for (i = 0; i < array->stack.len; i++) { + csi_object_t *obj = &array->stack.objects[i]; + int type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_ARRAY: + nglyphs += obj->datum.array->stack.len; + break; + case CSI_OBJECT_TYPE_STRING: + nglyphs += obj->datum.string->len; + break; + } + } + if (nglyphs == 0) { + pop (1); + return CSI_STATUS_SUCCESS; + } + + if (nglyphs > ARRAY_LENGTH (stack_glyphs)) { + if (_csi_unlikely ((unsigned) nglyphs >= INT_MAX / sizeof (cairo_glyph_t))) + return _csi_error (CSI_STATUS_NO_MEMORY); + + glyphs = _csi_alloc (ctx, sizeof (cairo_glyph_t) * nglyphs); + if (_csi_unlikely (glyphs == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + } else + glyphs = stack_glyphs; + + nglyphs = _glyph_string (ctx, array, cairo_get_scaled_font (cr), glyphs); + cairo_show_glyphs (cr, glyphs, nglyphs); + + if (glyphs != stack_glyphs) + _csi_free (ctx, glyphs); + + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_show_text_glyphs (csi_t *ctx) +{ + csi_object_t *obj; + csi_array_t *array; + csi_string_t *string; + csi_string_t *utf8_string; + csi_status_t status; + cairo_t *cr; + cairo_text_cluster_t stack_clusters[256], *clusters; + cairo_glyph_t stack_glyphs[256], *glyphs; + csi_integer_t nglyphs, nclusters, i; + long direction; + int type; + + check (5); + + status = _csi_ostack_get_integer (ctx, 0, &direction); + if (_csi_unlikely (status)) + return status; + + obj = _csi_peek_ostack (ctx, 1); + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_ARRAY: + array = obj->datum.array; + nclusters = array->stack.len / 2; + if (nclusters > ARRAY_LENGTH (stack_clusters)) { + if (_csi_unlikely ((unsigned) nclusters >= INT_MAX / sizeof (cairo_text_cluster_t))) + return _csi_error (CSI_STATUS_NO_MEMORY); + clusters = _csi_alloc (ctx, sizeof (cairo_text_cluster_t) * nclusters); + if (_csi_unlikely (clusters == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + } else + clusters = stack_clusters; + + for (i = 0; i < nclusters; i++) { + clusters[i].num_bytes = csi_number_get_value (&array->stack.objects[2*i+0]); + clusters[i].num_glyphs = csi_number_get_value (&array->stack.objects[2*i+1]); + } + break; + + case CSI_OBJECT_TYPE_STRING: + string = obj->datum.string; + nclusters = string->len / 2; + if (nclusters > ARRAY_LENGTH (stack_clusters)) { + if (_csi_unlikely ((unsigned) nclusters >= INT_MAX / sizeof (cairo_text_cluster_t))) + return _csi_error (CSI_STATUS_NO_MEMORY); + clusters = _csi_alloc (ctx, sizeof (cairo_text_cluster_t) * nclusters); + if (_csi_unlikely (clusters == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + } else + clusters = stack_clusters; + + for (i = 0; i < nclusters; i++) { + clusters[i].num_bytes = string->string[2*i+0]; + clusters[i].num_glyphs = string->string[2*i+1]; + } + break; + + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + status = _csi_ostack_get_array (ctx, 2, &array); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_string (ctx, 3, &utf8_string); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 4, &cr); + if (_csi_unlikely (status)) + return status; + + /* count glyphs */ + nglyphs = 0; + for (i = 0; i < array->stack.len; i++) { + obj = &array->stack.objects[i]; + type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_ARRAY: + nglyphs += obj->datum.array->stack.len; + break; + case CSI_OBJECT_TYPE_STRING: + nglyphs += obj->datum.string->len; + break; + } + } + if (nglyphs == 0) { + pop (4); + return CSI_STATUS_SUCCESS; + } + + if (nglyphs > ARRAY_LENGTH (stack_glyphs)) { + if (_csi_unlikely ((unsigned) nglyphs >= INT_MAX / sizeof (cairo_glyph_t))) + return _csi_error (CSI_STATUS_NO_MEMORY); + + glyphs = _csi_alloc (ctx, sizeof (cairo_glyph_t) * nglyphs); + if (_csi_unlikely (glyphs == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + } else + glyphs = stack_glyphs; + + nglyphs = _glyph_string (ctx, array, cairo_get_scaled_font (cr), glyphs); + cairo_show_text_glyphs (cr, + utf8_string->string, utf8_string->len, + glyphs, nglyphs, + clusters, nclusters, + direction); + + if (clusters != stack_clusters) + _csi_free (ctx, clusters); + if (glyphs != stack_glyphs) + _csi_free (ctx, glyphs); + + pop (4); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_stroke (csi_t *ctx) +{ + return _do_cairo_op (ctx, cairo_stroke); +} + +static csi_status_t +_stroke_preserve (csi_t *ctx) +{ + return _do_cairo_op (ctx, cairo_stroke_preserve); +} + +static csi_status_t +_sub (csi_t *ctx) +{ + csi_object_t *A; + csi_object_t *B; + csi_object_type_t type_a, type_b; + + check (2); + + B = _csi_peek_ostack (ctx, 0); + A = _csi_peek_ostack (ctx, 1); + + type_a = csi_object_get_type (A); + if (_csi_unlikely (! (type_a == CSI_OBJECT_TYPE_INTEGER || + type_a == CSI_OBJECT_TYPE_REAL))) + { + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + type_b = csi_object_get_type (B); + if (_csi_unlikely (! (type_b == CSI_OBJECT_TYPE_INTEGER || + type_b == CSI_OBJECT_TYPE_REAL))) + { + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (2); + + if (type_a == CSI_OBJECT_TYPE_REAL && + type_b == CSI_OBJECT_TYPE_REAL) + { + return _csi_push_ostack_real (ctx, A->datum.real - B->datum.real); + + } + else if (type_a == CSI_OBJECT_TYPE_INTEGER && + type_b == CSI_OBJECT_TYPE_INTEGER) + { + return _csi_push_ostack_integer (ctx, + A->datum.integer - B->datum.integer); + } + else + { + double v; + + if (type_a == CSI_OBJECT_TYPE_REAL) + v = A->datum.real; + else + v = A->datum.integer; + + if (type_b == CSI_OBJECT_TYPE_REAL) + v -= B->datum.real; + else + v -= B->datum.integer; + + return _csi_push_ostack_real (ctx, v); + } +} + +static csi_status_t +_surface (csi_t *ctx) +{ + csi_object_t obj; + csi_dictionary_t *dict; + csi_proxy_t *proxy; + csi_object_t key; + double width, height; + csi_surface_create_func_t hook; + long content; + cairo_surface_t *surface; + long uid; + csi_status_t status; + + check (1); + + status = _csi_ostack_get_dictionary (ctx, 0, &dict); + if (_csi_unlikely (status)) + return status; + + status = _csi_dictionary_get_number (ctx, dict, "width", FALSE, &width); + if (_csi_unlikely (status)) + return status; + status = _csi_dictionary_get_number (ctx, dict, "height", FALSE, &height); + if (_csi_unlikely (status)) + return status; + + content = CAIRO_CONTENT_COLOR_ALPHA; + status = _csi_dictionary_get_integer (ctx, dict, "content", TRUE, &content); + if (_csi_unlikely (status)) + return status; + + uid = 0; + status = _csi_dictionary_get_integer (ctx, dict, "uid", TRUE, &uid); + if (_csi_unlikely (status)) + return status; + if (uid == 0) { + status = _csi_dictionary_get_integer (ctx, dict, "drawable", TRUE, &uid); + if (_csi_unlikely (status)) + return status; + } + + hook = ctx->hooks.surface_create; + assert (hook != NULL); + + surface = hook (ctx->hooks.closure, content, width, height, uid); + if (_csi_unlikely (surface == NULL)) { + return _csi_error (CSI_STATUS_NULL_POINTER); + } + + proxy = _csi_proxy_create (ctx, surface, dict, + ctx->hooks.surface_destroy, + ctx->hooks.closure); + if (_csi_unlikely (proxy == NULL)) { + cairo_surface_destroy (surface); + return _csi_error (CSI_STATUS_NO_MEMORY); + } + + status = cairo_surface_set_user_data (surface, + &_csi_proxy_key, + proxy, _csi_proxy_destroy); + if (_csi_unlikely (status)) { + _csi_proxy_destroy (proxy); + cairo_surface_destroy (surface); + return status; + } + + status = csi_name_new_static (ctx, &key, "fallback-resolution"); + if (_csi_unlikely (status)) { + cairo_surface_destroy (surface); + return status; + } + if (csi_dictionary_has (dict, key.datum.name)) { + status = csi_dictionary_get (ctx, dict, key.datum.name, &obj); + if (_csi_unlikely (status)) { + cairo_surface_destroy (surface); + return status; + } + if (csi_object_get_type (&obj) == CSI_OBJECT_TYPE_ARRAY) { + csi_array_t *array = obj.datum.array; + if (array->stack.len == 2) { + cairo_surface_set_fallback_resolution (surface, + csi_number_get_value + (&array->stack.objects[0]), + csi_number_get_value + (&array->stack.objects[1])); + } + } + } + /* initialise surface to source */ + status = csi_name_new_static (ctx, &key, "source"); + if (_csi_unlikely (status)) { + cairo_surface_destroy (surface); + return status; + } + if (csi_dictionary_has (dict, key.datum.name)) { + cairo_surface_t *image; + cairo_t *cr; + + status = _image_load_from_dictionary (ctx, dict, &image); + if (_csi_unlikely (status)) { + cairo_surface_destroy (surface); + return status; + } + + cr = cairo_create (surface); + cairo_set_source_surface (cr, image, 0, 0); + cairo_surface_destroy (image); + cairo_paint (cr); + status = cairo_status (cr); + cairo_destroy (cr); + + if (_csi_unlikely (status)) + return status; + } + + status = csi_name_new_static (ctx, &key, "device-offset"); + if (_csi_unlikely (status)) { + cairo_surface_destroy (surface); + return status; + } + if (csi_dictionary_has (dict, key.datum.name)) { + status = csi_dictionary_get (ctx, dict, key.datum.name, &obj); + if (_csi_unlikely (status)) + return status; + + if (csi_object_get_type (&obj) == CSI_OBJECT_TYPE_ARRAY) { + csi_array_t *array = obj.datum.array; + + if (array->stack.len == 2) { + cairo_surface_set_device_offset (surface, + csi_number_get_value + (&array->stack.objects[0]), + csi_number_get_value + (&array->stack.objects[1])); + } + } + } + + status = csi_name_new_static (ctx, &key, "device-scale"); + if (_csi_unlikely (status)) { + cairo_surface_destroy (surface); + return status; + } + if (csi_dictionary_has (dict, key.datum.name)) { + status = csi_dictionary_get (ctx, dict, key.datum.name, &obj); + if (_csi_unlikely (status)) + return status; + + if (csi_object_get_type (&obj) == CSI_OBJECT_TYPE_ARRAY) { + csi_array_t *array = obj.datum.array; + + if (array->stack.len == 2) { + cairo_surface_set_device_scale (surface, + csi_number_get_value + (&array->stack.objects[0]), + csi_number_get_value + (&array->stack.objects[1])); + } + } + } + + obj.type = CSI_OBJECT_TYPE_SURFACE; + obj.datum.surface = surface; + pop (1); + return push (&obj); +} + +static csi_status_t +_record (csi_t *ctx) +{ + csi_object_t obj; + long content; + csi_array_t *array; + csi_status_t status; + cairo_rectangle_t extents; + cairo_rectangle_t *r; + + check (2); + + status = _csi_ostack_get_array (ctx, 0, &array); + if (_csi_unlikely (status)) + return status; + + status = _csi_ostack_get_integer (ctx, 1, &content); + if (_csi_unlikely (status)) + return status; + + switch (array->stack.len) { + case 0: + r = NULL; + break; + case 2: + extents.x = extents.y = 0; + extents.width = _csi_object_as_real (&array->stack.objects[0]); + extents.height = _csi_object_as_real (&array->stack.objects[1]); + r = &extents; + break; + case 4: + extents.x = _csi_object_as_real (&array->stack.objects[0]); + extents.y = _csi_object_as_real (&array->stack.objects[1]); + extents.width = _csi_object_as_real (&array->stack.objects[2]); + extents.height = _csi_object_as_real (&array->stack.objects[3]); + r = &extents; + break; + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + obj.type = CSI_OBJECT_TYPE_SURFACE; + obj.datum.surface = cairo_recording_surface_create (content, r); + pop (2); + return push (&obj); +} + +static csi_status_t +_text_path (csi_t *ctx) +{ + csi_status_t status; + csi_string_t *text; + cairo_t *cr; + + check (2); + + status = _csi_ostack_get_string (ctx, 0, &text); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_context (ctx, 1, &cr); + if (_csi_unlikely (status)) + return status; + + cairo_text_path (cr, text->string); + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_undef (csi_t *ctx) +{ + csi_name_t name = 0; /* silence the compiler */ + csi_status_t status; + + check (1); + + status = _csi_ostack_get_name (ctx, 0, &name); + if (_csi_unlikely (status)) + return status; + + status = _csi_name_undefine (ctx, name); + if (_csi_unlikely (status)) + return status; + + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_unset (csi_t *ctx) +{ + csi_object_t *dst; + csi_name_t name = 0; /* silence the compiler */ + csi_status_t status; + int type; + + check (2); + + status = _csi_ostack_get_name (ctx, 0, &name); + if (_csi_unlikely (status)) + return status; + + dst = _csi_peek_ostack (ctx, 1); + type = csi_object_get_type (dst); + switch (type) { + case CSI_OBJECT_TYPE_DICTIONARY: + csi_dictionary_remove (ctx, dst->datum.dictionary, name); + break; + case CSI_OBJECT_TYPE_STRING: + case CSI_OBJECT_TYPE_ARRAY: + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } + + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_write_to_png (csi_t *ctx) +{ + csi_status_t status; + csi_string_t *filename; + cairo_surface_t *surface; + + check (2); + + status = _csi_ostack_get_string (ctx, 0, &filename); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_surface (ctx, 1, &surface); + if (_csi_unlikely (status)) + return status; + +#if CAIRO_HAS_PNG_FUNCTIONS + status = cairo_surface_write_to_png (surface, filename->string); + if (_csi_unlikely (status)) + return status; +#else + return CAIRO_STATUS_WRITE_ERROR; +#endif + + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_write_to_script (csi_t *ctx) +{ + csi_status_t status; + csi_string_t *filename; + cairo_surface_t *record; + + check (2); + + status = _csi_ostack_get_string (ctx, 0, &filename); + if (_csi_unlikely (status)) + return status; + status = _csi_ostack_get_surface (ctx, 1, &record); + if (_csi_unlikely (status)) + return status; + + if (cairo_surface_get_type (record) != CAIRO_SURFACE_TYPE_RECORDING) + return CAIRO_STATUS_SURFACE_TYPE_MISMATCH; + +#if CAIRO_HAS_SCRIPT_SURFACE + { + cairo_device_t *script; + + script = cairo_script_create (filename->string); + status = cairo_script_from_recording_surface (script, record); + cairo_device_destroy (script); + if (_csi_unlikely (status)) + return status; + } +#else + return CAIRO_STATUS_WRITE_ERROR; +#endif + + pop (1); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_xor (csi_t *ctx) +{ + csi_object_t *a, *b; + int type; + + check (2); + + a = _csi_peek_ostack (ctx, 0); + b = _csi_peek_ostack (ctx, 1); + if (_csi_unlikely (csi_object_get_type (a) != csi_object_get_type (b))) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + pop (2); + type = csi_object_get_type (a); + switch (type) { + case CSI_OBJECT_TYPE_INTEGER: + return _csi_push_ostack_integer (ctx, + a->datum.integer ^ b->datum.integer); + case CSI_OBJECT_TYPE_BOOLEAN: + return _csi_push_ostack_boolean (ctx, + a->datum.boolean ^ b->datum.boolean); + default: + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + } +} + +static csi_status_t +_debug_print (csi_t *ctx) +{ + csi_object_t *obj; + + check (1); + obj = _csi_peek_ostack (ctx, 0); + switch (csi_object_get_type (obj)) { + case CSI_OBJECT_TYPE_NULL: + fprintf (stderr, "NULL\n"); + break; + + /* atomics */ + case CSI_OBJECT_TYPE_BOOLEAN: + fprintf (stderr, "boolean: %s\n", + obj->datum.boolean ? "true" : "false"); + break; + case CSI_OBJECT_TYPE_INTEGER: + fprintf (stderr, "integer: %ld\n", obj->datum.integer); + break; + case CSI_OBJECT_TYPE_MARK: + fprintf (stderr, "mark\n"); + break; + case CSI_OBJECT_TYPE_NAME: + fprintf (stderr, "name: %s\n", (char *) obj->datum.name); + break; + case CSI_OBJECT_TYPE_OPERATOR: + fprintf (stderr, "operator: %p\n", obj->datum.ptr); + break; + case CSI_OBJECT_TYPE_REAL: + fprintf (stderr, "real: %g\n", obj->datum.real); + break; + + /* compound */ + case CSI_OBJECT_TYPE_ARRAY: + fprintf (stderr, "array\n"); + break; + case CSI_OBJECT_TYPE_DICTIONARY: + fprintf (stderr, "dictionary\n"); + break; + case CSI_OBJECT_TYPE_FILE: + fprintf (stderr, "file\n"); + break; + case CSI_OBJECT_TYPE_MATRIX: + fprintf (stderr, "matrix: [%g %g %g %g %g %g]\n", + obj->datum.matrix->matrix.xx, + obj->datum.matrix->matrix.yx, + obj->datum.matrix->matrix.xy, + obj->datum.matrix->matrix.yy, + obj->datum.matrix->matrix.x0, + obj->datum.matrix->matrix.y0); + break; + case CSI_OBJECT_TYPE_STRING: + fprintf (stderr, "string: %s\n", obj->datum.string->string); + break; + + /* cairo */ + case CSI_OBJECT_TYPE_CONTEXT: + fprintf (stderr, "context\n"); + break; + case CSI_OBJECT_TYPE_FONT: + fprintf (stderr, "font\n"); + break; + case CSI_OBJECT_TYPE_PATTERN: + fprintf (stderr, "pattern\n"); + break; + case CSI_OBJECT_TYPE_SCALED_FONT: + fprintf (stderr, "scaled-font\n"); + break; + case CSI_OBJECT_TYPE_SURFACE: + fprintf (stderr, "surface\n"); + break; + } + pop (1); + return CSI_STATUS_SUCCESS; +} + +static const csi_operator_def_t +_defs[] = { + { "<<", _mark }, + { ">>", end_dict_construction }, + { "[", _mark }, + { "]", end_array_construction }, + { "a", _alpha }, + { "abs", NULL }, + { "add", _add }, + { "add-color-stop", _add_color_stop }, + { "and", _and }, + { "arc", _arc }, + { "arc-negative", _arc_negative }, + { "arc-", _arc_negative }, + { "arc-to", NULL }, + { "array", _array }, + { "astore", NULL }, + { "atan", NULL }, + { "bind", _bind }, + { "bitshift", _bitshift }, + { "c", _curve_to }, + { "C", _rel_curve_to }, + { "ceiling", NULL }, + { "clear", NULL }, + { "clear-to-mark", NULL }, + { "clip", _clip }, + { "clip-extents", NULL }, + { "clip-preserve", _clip_preserve }, + { "clip+", _clip_preserve }, + { "close-path", _close_path }, + { "context", _context }, + { "copy", _copy }, + { "copy-page", _copy_page }, + { "cos", NULL }, + { "count", NULL }, + { "count-to-mark", NULL }, + { "curve-to", _curve_to }, + { "cvi", _cvi }, + { "cvr", _cvr }, + { "def", _def }, + { "device-to-user", NULL }, + { "device-to-user-distance", NULL }, + { "dict", _dict }, + { "div", _div }, + { "dup", _duplicate }, + { "eq", _eq }, + { "exch", _exch }, + { "exec", NULL }, + { "exp", NULL }, + { "false", _false }, + { "fill", _fill }, + { "fill-extents", NULL }, + { "fill-preserve", _fill_preserve }, + { "fill+", _fill_preserve }, + { "filter", _filter }, + { "floor", NULL }, + { "font", _font }, + { "for", _for }, + { "forall", NULL }, + { "g", _gray }, + { "ge", _ge }, + { "get", _get }, + { "glyph-path", _glyph_path }, + { "gt", _gt }, + { "h", _close_path }, + { "identity", _identity }, + { "if", _if }, + { "ifelse", _ifelse }, + { "image", _image }, + { "index", _index }, + { "integer", _integer }, + { "invert", _invert }, + { "in-stroke", NULL }, + { "in-fill", NULL }, + { "known", NULL }, + { "l", _line_to }, + { "L", _rel_line_to }, + { "languagelevel", NULL }, + { "le", _le }, + { "length", NULL }, + { "linear", _linear }, + { "line-to", _line_to }, + { "ln", NULL }, + { "load", NULL }, + { "log", NULL }, + { "loop", NULL }, + { "lt", _lt }, + { "m", _move_to }, + { "M", _rel_move_to }, + { "map-to-image", _map_to_image }, + { "mark", _mark }, + { "mask", _mask }, + { "matrix", _matrix }, + + { "mesh", _mesh }, + { "begin-patch", _mesh_begin_patch }, + { "end-patch", _mesh_end_patch }, + { "set-control-point", _mesh_set_control_point }, + { "set-corner-color", _mesh_set_corner_color }, + + { "mod", _mod }, + { "move-to", _move_to }, + { "mul", _mul }, + { "multiply", NULL }, + { "n", _new_path }, + { "N", _new_sub_path }, + { "ne", _ne }, + { "neg", _neg }, + { "new-path", _new_path }, + { "new-sub-path", _new_sub_path }, + { "not", _not }, + { "null", _null }, + { "or", _or }, + { "paint", _paint }, + { "paint-with-alpha", _paint_with_alpha }, + { "pattern", _pattern }, + { "pop", _pop }, + { "pop-group", _pop_group }, + { "push-group", _push_group }, + { "radial", _radial }, + { "rand", NULL }, + { "record", _record }, + { "rectangle", _rectangle }, + { "repeat", _repeat }, + { "restore", _restore }, + { "rel-curve-to", _rel_curve_to }, + { "rel-line-to", _rel_line_to }, + { "rel-move-to", _rel_move_to }, + { "reset-clip", _reset_clip }, + { "rgb", _rgb }, + { "rgba", _rgba }, + { "roll", _roll }, + { "rotate", _rotate }, + { "round", NULL }, + { "run", NULL }, + { "save", _save }, + { "scale", _scale }, + { "scaled-font", _scaled_font }, + { "select-font-face", _select_font_face }, + { "set", _set }, + { "set-antialias", _set_antialias }, + { "set-dash", _set_dash }, + { "set-device-offset", _set_device_offset }, + { "set-device-scale", _set_device_scale }, + { "set-extend", _set_extend }, + { "set-fallback-resolution", _set_fallback_resolution }, + { "set-fill-rule", _set_fill_rule }, + { "set-filter", _set_filter }, + { "set-font-face", _set_font_face }, + { "set-font-options", _set_font_options }, + { "set-font-matrix", _set_font_matrix }, + { "set-font-size", _set_font_size }, + { "set-line-cap", _set_line_cap }, + { "set-line-join", _set_line_join }, + { "set-line-width", _set_line_width }, + { "set-hairline", _set_hairline }, + { "set-matrix", _set_matrix }, + { "set-miter-limit", _set_miter_limit }, + { "set-mime-data", _set_mime_data }, + { "set-operator", _set_operator }, + { "set-scaled-font", _set_scaled_font }, + { "set-source", _set_source }, + { "set-source-image", _set_source_image }, + { "set-source-rgb", _set_source_rgb }, + { "set-source-rgba", _set_source_rgba }, + { "set-tolerance", _set_tolerance }, + { "show-glyphs", _show_glyphs }, + { "show-text", _show_text }, + { "show-text-glyphs", _show_text_glyphs }, + { "show-page", _show_page }, + { "similar", _similar }, + { "similar-image", _similar_image }, + { "sin", NULL }, + { "sqrt", NULL }, + { "sub", _sub }, + { "subsurface", _subsurface }, + { "surface", _surface }, + { "string", NULL }, + { "stroke", _stroke }, + { "stroke-extents", NULL }, + { "stroke-preserve", _stroke_preserve }, + { "stroke+", _stroke_preserve }, + { "text-path", _text_path }, + { "transform", _transform }, + { "transform-distance", NULL }, + { "transform-point", NULL }, + { "translate", _translate }, + { "true", _true }, + { "type", NULL }, + { "undef", _undef }, + { "unmap-image", _unmap_image }, + { "unset", _unset }, + { "user-to-device", NULL }, + { "user-to-device-distance", NULL }, + { "where", NULL }, + { "write-to-png", _write_to_png }, + { "write-to-script", _write_to_script }, + { "xor", _xor }, + + { "=", _debug_print }, + + { NULL, NULL }, +}; + +const csi_operator_def_t * +_csi_operators (void) +{ + return _defs; +} + +static const csi_integer_constant_def_t +_integer_constants[] = { + { "CLEAR", CAIRO_OPERATOR_CLEAR }, + { "SOURCE", CAIRO_OPERATOR_SOURCE }, + { "OVER", CAIRO_OPERATOR_OVER }, + { "IN", CAIRO_OPERATOR_IN }, + { "OUT", CAIRO_OPERATOR_OUT }, + { "ATOP", CAIRO_OPERATOR_ATOP }, + { "DEST", CAIRO_OPERATOR_DEST }, + { "DEST_OVER", CAIRO_OPERATOR_DEST_OVER }, + { "DEST_IN", CAIRO_OPERATOR_DEST_IN }, + { "DEST_OUT", CAIRO_OPERATOR_DEST_OUT }, + { "DEST_ATOP", CAIRO_OPERATOR_DEST_ATOP }, + { "XOR", CAIRO_OPERATOR_XOR }, + { "ADD", CAIRO_OPERATOR_ADD }, + { "SATURATE", CAIRO_OPERATOR_SATURATE }, + { "MULTIPLY", CAIRO_OPERATOR_MULTIPLY }, + { "SCREEN", CAIRO_OPERATOR_SCREEN }, + { "OVERLAY", CAIRO_OPERATOR_OVERLAY }, + { "DARKEN", CAIRO_OPERATOR_DARKEN }, + { "LIGHTEN", CAIRO_OPERATOR_LIGHTEN }, + { "DODGE", CAIRO_OPERATOR_COLOR_DODGE }, + { "BURN", CAIRO_OPERATOR_COLOR_BURN }, + { "HARD_LIGHT", CAIRO_OPERATOR_HARD_LIGHT }, + { "SOFT_LIGHT", CAIRO_OPERATOR_SOFT_LIGHT }, + { "DIFFERENCE", CAIRO_OPERATOR_DIFFERENCE }, + { "EXCLUSION", CAIRO_OPERATOR_EXCLUSION }, + { "HSL_HUE", CAIRO_OPERATOR_HSL_HUE }, + { "HSL_SATURATION", CAIRO_OPERATOR_HSL_SATURATION }, + { "HSL_COLOR", CAIRO_OPERATOR_HSL_COLOR }, + { "HSL_LUMINOSITY", CAIRO_OPERATOR_HSL_LUMINOSITY }, + + { "WINDING", CAIRO_FILL_RULE_WINDING }, + { "EVEN_ODD", CAIRO_FILL_RULE_EVEN_ODD }, + + { "ANTIALIAS_DEFAULT", CAIRO_ANTIALIAS_DEFAULT }, + { "ANTIALIAS_NONE", CAIRO_ANTIALIAS_NONE }, + { "ANTIALIAS_GRAY", CAIRO_ANTIALIAS_GRAY }, + { "ANTIALIAS_SUBPIXEL", CAIRO_ANTIALIAS_SUBPIXEL }, + { "ANTIALIAS_FAST", CAIRO_ANTIALIAS_FAST }, + { "ANTIALIAS_GOOD", CAIRO_ANTIALIAS_GOOD }, + { "ANTIALIAS_BEST", CAIRO_ANTIALIAS_BEST }, + + { "LINE_CAP_BUTT", CAIRO_LINE_CAP_BUTT }, + { "LINE_CAP_ROUND", CAIRO_LINE_CAP_ROUND }, + { "LINE_CAP_SQUARE", CAIRO_LINE_CAP_SQUARE }, + + { "LINE_JOIN_MITER", CAIRO_LINE_JOIN_MITER }, + { "LINE_JOIN_ROUND", CAIRO_LINE_JOIN_ROUND }, + { "LINE_JOIN_BEVEL", CAIRO_LINE_JOIN_BEVEL }, + + { "EXTEND_NONE", CAIRO_EXTEND_NONE }, + { "EXTEND_REPEAT", CAIRO_EXTEND_REPEAT }, + { "EXTEND_REFLECT", CAIRO_EXTEND_REFLECT }, + { "EXTEND_PAD", CAIRO_EXTEND_PAD }, + + { "FILTER_FAST", CAIRO_FILTER_FAST }, + { "FILTER_GOOD", CAIRO_FILTER_GOOD }, + { "FILTER_BEST", CAIRO_FILTER_BEST }, + { "FILTER_BILINEAR", CAIRO_FILTER_BILINEAR }, + { "FILTER_NEAREST", CAIRO_FILTER_NEAREST }, + { "FILTER_GAUSSIAN", CAIRO_FILTER_GAUSSIAN }, + + { "SLANT_NORMAL", CAIRO_FONT_SLANT_NORMAL }, + { "SLANT_ITALIC", CAIRO_FONT_SLANT_ITALIC }, + { "SLANT_OBLIQUE", CAIRO_FONT_SLANT_OBLIQUE }, + + { "WEIGHT_NORMAL", CAIRO_FONT_WEIGHT_NORMAL }, + { "WEIGHT_BOLD", CAIRO_FONT_WEIGHT_BOLD }, + + { "SUBPIXEL_ORDER_DEFAULT", CAIRO_SUBPIXEL_ORDER_DEFAULT }, + { "SUBPIXEL_ORDER_RGB", CAIRO_SUBPIXEL_ORDER_RGB }, + { "SUBPIXEL_ORDER_BGR", CAIRO_SUBPIXEL_ORDER_BGR }, + { "SUBPIXEL_ORDER_VRGB", CAIRO_SUBPIXEL_ORDER_VRGB }, + { "SUBPIXEL_ORDER_VBGR", CAIRO_SUBPIXEL_ORDER_VBGR }, + + { "HINT_STYLE_DEFAULT", CAIRO_HINT_STYLE_DEFAULT }, + { "HINT_STYLE_NONE", CAIRO_HINT_STYLE_NONE }, + { "HINT_STYLE_SLIGHT", CAIRO_HINT_STYLE_SLIGHT }, + { "HINT_STYLE_MEDIUM", CAIRO_HINT_STYLE_MEDIUM }, + { "HINT_STYLE_FULL", CAIRO_HINT_STYLE_FULL }, + + { "HINT_METRICS_DEFAULT", CAIRO_HINT_METRICS_DEFAULT }, + { "HINT_METRICS_OFF", CAIRO_HINT_METRICS_OFF }, + { "HINT_METRICS_ON", CAIRO_HINT_METRICS_ON }, + + { "FORWARD", 0 }, + { "BACKWARD", 1 }, + + { "COLOR", CAIRO_CONTENT_COLOR }, + { "ALPHA", CAIRO_CONTENT_ALPHA }, + { "COLOR_ALPHA", CAIRO_CONTENT_COLOR_ALPHA }, + + { "A1", CAIRO_FORMAT_A1 }, + { "A8", CAIRO_FORMAT_A8 }, + { "RGB16_565", CAIRO_FORMAT_RGB16_565 }, + { "RGB24", CAIRO_FORMAT_RGB24 }, + { "ARGB32", CAIRO_FORMAT_ARGB32 }, + { "RGB30", CAIRO_FORMAT_RGB30 }, + { "RGB96F", CAIRO_FORMAT_RGB96F }, + { "RGBA128F", CAIRO_FORMAT_RGBA128F }, + { "INVALID", CAIRO_FORMAT_INVALID }, + + { NULL, 0 } +}; + + +const csi_integer_constant_def_t * +_csi_integer_constants (void) +{ + return _integer_constants; +} + +static const csi_real_constant_def_t +_real_constants[] = { + { "math.pi", M_PI }, + { "math.2pi", 2 * M_PI }, + { "math.sqrt2", M_SQRT2 }, + { "math.ln2", M_LN2 }, + + { NULL, 0 } +}; + +const csi_real_constant_def_t * +_csi_real_constants (void) +{ + return _real_constants; +} diff --git a/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-private.h b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-private.h new file mode 100644 index 0000000000..96f9248d55 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-private.h @@ -0,0 +1,966 @@ +/* + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + */ + +#ifndef CAIRO_SCRIPT_PRIVATE_H +#define CAIRO_SCRIPT_PRIVATE_H + +#include "config.h" + +#include "cairo-script-interpreter.h" + +#include +#include + +#ifdef _MSC_VER +#undef inline +#define inline __inline +#endif + +#ifndef FALSE +#define FALSE 0 +#endif + +#ifndef TRUE +#define TRUE (!FALSE) +#endif + +#ifndef NULL +#define NULL (void *) 0 +#endif + +#if HAVE_STDINT_H +# include +#elif HAVE_INTTYPES_H +# include +#elif HAVE_SYS_INT_TYPES_H +# include +#elif defined(_MSC_VER) + typedef __int8 int8_t; + typedef unsigned __int8 uint8_t; + typedef __int16 int16_t; + typedef unsigned __int16 uint16_t; + typedef __int32 int32_t; + typedef unsigned __int32 uint32_t; + typedef __int64 int64_t; + typedef unsigned __int64 uint64_t; +# ifndef HAVE_UINT64_T +# define HAVE_UINT64_T 1 +# endif +#else +#error Cannot find definitions for fixed-width integral types (uint8_t, uint32_t, etc.) +#endif + +#if HAVE_BYTESWAP_H +# include +#endif +#ifndef bswap_16 +# define bswap_16(p) \ + (((((uint16_t)(p)) & 0x00ff) << 8) | \ + (((uint16_t)(p)) >> 8)) +#endif +#ifndef bswap_32 +# define bswap_32(p) \ + (((((uint32_t)(p)) & 0x000000ff) << 24) | \ + ((((uint32_t)(p)) & 0x0000ff00) << 8) | \ + ((((uint32_t)(p)) & 0x00ff0000) >> 8) | \ + ((((uint32_t)(p))) >> 24)) +#endif + + +#if __GNUC__ >= 3 +#define csi_pure __attribute__((pure)) +#define csi_const __attribute__((const)) +#else +#define csi_pure +#define csi_const +#endif + +#if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__) +#define _CSI_BOOLEAN_EXPR(expr) \ + __extension__ ({ \ + int _csi_boolean_var_; \ + if (expr) \ + _csi_boolean_var_ = 1; \ + else \ + _csi_boolean_var_ = 0; \ + _csi_boolean_var_; \ +}) +#define _csi_likely(expr) (__builtin_expect (_CSI_BOOLEAN_EXPR(expr), 1)) +#define _csi_unlikely(expr) (__builtin_expect (_CSI_BOOLEAN_EXPR(expr), 0)) +#else +#define _csi_likely(expr) (expr) +#define _csi_unlikely(expr) (expr) +#endif + +#ifdef __GNUC__ +#define csi_container_of(ptr, type, member) ({ \ + const typeof(((type *) 0)->member) *mptr__ = (ptr); \ + (type *) ((char *) mptr__ - offsetof (type, member)); \ +}) +#else +#define csi_container_of(ptr, type, member) \ + (type *)((char *) (ptr) - (char *) &((type *)0)->member) +#endif + +#if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)) && defined(__ELF__) && !defined(__sun) +#define csi_private_no_warn __attribute__((__visibility__("hidden"))) +#elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550) +#define csi_private_no_warn __hidden +#else /* not gcc >= 3.3 and not Sun Studio >= 8 */ +#define csi_private_no_warn +#endif + +#undef ARRAY_LENGTH +#define ARRAY_LENGTH(__array) ((int) (sizeof (__array) / sizeof (__array[0]))) + +#ifndef WARN_UNUSED_RESULT +#define WARN_UNUSED_RESULT +#endif +/* Add attribute(warn_unused_result) if supported */ +#define csi_warn WARN_UNUSED_RESULT +#define csi_private csi_private_no_warn csi_warn + +#define CSI_BITSWAP8(c) ((((c) * 0x0802LU & 0x22110LU) | ((c) * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16) +#ifdef WORDS_BIGENDIAN +#define CSI_BITSWAP8_IF_LITTLE_ENDIAN(c) (c) +#else +#define CSI_BITSWAP8_IF_LITTLE_ENDIAN(c) CSI_BITSWAP8(c) +#endif + +typedef enum _csi_status { + CSI_STATUS_SUCCESS = CAIRO_STATUS_SUCCESS, + CSI_STATUS_NO_MEMORY = CAIRO_STATUS_NO_MEMORY, + CSI_STATUS_INVALID_RESTORE = CAIRO_STATUS_INVALID_RESTORE, + CSI_STATUS_INVALID_POP_GROUP = CAIRO_STATUS_INVALID_POP_GROUP, + CSI_STATUS_NO_CURRENT_POINT = CAIRO_STATUS_NO_CURRENT_POINT, + CSI_STATUS_INVALID_MATRIX = CAIRO_STATUS_INVALID_MATRIX, + CSI_STATUS_INVALID_STATUS = CAIRO_STATUS_INVALID_STATUS, + CSI_STATUS_NULL_POINTER = CAIRO_STATUS_NULL_POINTER, + CSI_STATUS_INVALID_STRING = CAIRO_STATUS_INVALID_STRING, + CSI_STATUS_INVALID_PATH_DATA = CAIRO_STATUS_INVALID_PATH_DATA, + CSI_STATUS_READ_ERROR = CAIRO_STATUS_READ_ERROR, + CSI_STATUS_WRITE_ERROR = CAIRO_STATUS_WRITE_ERROR, + CSI_STATUS_SURFACE_FINISHED = CAIRO_STATUS_SURFACE_FINISHED, + CSI_STATUS_SURFACE_TYPE_MISMATCH = CAIRO_STATUS_SURFACE_TYPE_MISMATCH, + CSI_STATUS_PATTERN_TYPE_MISMATCH = CAIRO_STATUS_PATTERN_TYPE_MISMATCH, + CSI_STATUS_INVALID_CONTENT = CAIRO_STATUS_INVALID_CONTENT, + CSI_STATUS_INVALID_FORMAT = CAIRO_STATUS_INVALID_FORMAT, + CSI_STATUS_INVALID_VISUAL = CAIRO_STATUS_INVALID_VISUAL, + CSI_STATUS_FILE_NOT_FOUND = CAIRO_STATUS_FILE_NOT_FOUND, + CSI_STATUS_INVALID_DASH = CAIRO_STATUS_INVALID_DASH, + CSI_STATUS_INVALID_DSC_COMMENT = CAIRO_STATUS_INVALID_DSC_COMMENT, + CSI_STATUS_INVALID_INDEX = CAIRO_STATUS_INVALID_INDEX, + CSI_STATUS_CLIP_NOT_REPRESENTABLE = CAIRO_STATUS_CLIP_NOT_REPRESENTABLE, + CSI_STATUS_TEMP_FILE_ERROR = CAIRO_STATUS_TEMP_FILE_ERROR, + CSI_STATUS_INVALID_STRIDE = CAIRO_STATUS_INVALID_STRIDE, + CSI_STATUS_FONT_TYPE_MISMATCH = CAIRO_STATUS_FONT_TYPE_MISMATCH, + CSI_STATUS_USER_FONT_IMMUTABLE = CAIRO_STATUS_USER_FONT_IMMUTABLE, + CSI_STATUS_USER_FONT_ERROR = CAIRO_STATUS_USER_FONT_ERROR, + CSI_STATUS_NEGATIVE_COUNT = CAIRO_STATUS_NEGATIVE_COUNT, + CSI_STATUS_INVALID_CLUSTERS = CAIRO_STATUS_INVALID_CLUSTERS, + CSI_STATUS_INVALID_SLANT = CAIRO_STATUS_INVALID_SLANT, + CSI_STATUS_INVALID_WEIGHT = CAIRO_STATUS_INVALID_WEIGHT, + CSI_STATUS_INVALID_SIZE = CAIRO_STATUS_INVALID_SIZE, + CSI_STATUS_USER_FONT_NOT_IMPLEMENTED = CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED, + CSI_STATUS_DEVICE_TYPE_MISMATCH = CAIRO_STATUS_DEVICE_TYPE_MISMATCH, + CSI_STATUS_DEVICE_ERROR = CAIRO_STATUS_DEVICE_ERROR, + CSI_STATUS_INVALID_MESH_CONSTRUCTION = CAIRO_STATUS_INVALID_MESH_CONSTRUCTION, + CSI_STATUS_DEVICE_FINISHED = CAIRO_STATUS_DEVICE_FINISHED, + CSI_STATUS_JBIG2_GLOBAL_MISSING = CAIRO_STATUS_JBIG2_GLOBAL_MISSING, + CSI_STATUS_PNG_ERROR = CAIRO_STATUS_PNG_ERROR, + CSI_STATUS_FREETYPE_ERROR = CAIRO_STATUS_FREETYPE_ERROR, + CSI_STATUS_WIN32_GDI_ERROR = CAIRO_STATUS_WIN32_GDI_ERROR, + + /* cairo-script-interpreter specific errors */ + + CSI_STATUS_INVALID_SCRIPT, + CSI_STATUS_SCRIPT_INVALID_TYPE, + CSI_STATUS_SCRIPT_INVALID_INDEX, + CSI_STATUS_SCRIPT_UNDEFINED_NAME, + CSI_STATUS_INTERPRETER_FINISHED, + + _CSI_STATUS_SCRIPT_LAST_ERROR, + CSI_INT_STATUS_UNSUPPORTED +} csi_status_t; + +typedef enum { + CSI_OBJECT_TYPE_NULL = 0, + + /* atomics */ + CSI_OBJECT_TYPE_BOOLEAN, + CSI_OBJECT_TYPE_INTEGER, + CSI_OBJECT_TYPE_MARK, + CSI_OBJECT_TYPE_NAME, + CSI_OBJECT_TYPE_OPERATOR, + CSI_OBJECT_TYPE_REAL, + + /* compound */ + CSI_OBJECT_TYPE_ARRAY = 0x8, + CSI_OBJECT_TYPE_DICTIONARY, + CSI_OBJECT_TYPE_FILE, + CSI_OBJECT_TYPE_MATRIX, + CSI_OBJECT_TYPE_STRING, + + /* cairo */ + CSI_OBJECT_TYPE_CONTEXT = 0x10, + CSI_OBJECT_TYPE_FONT, + CSI_OBJECT_TYPE_PATTERN, + CSI_OBJECT_TYPE_SCALED_FONT, + CSI_OBJECT_TYPE_SURFACE +} csi_object_type_t; + +#define CSI_OBJECT_IS_ATOM(OBJ) (((OBJ)->type & CSI_OBJECT_TYPE_MASK) < 0x08) +#define CSI_OBJECT_IS_COMPOUND(OBJ) ((OBJ)->type & 0x08) +#define CSI_OBJECT_IS_CAIRO(OBJ) ((OBJ)->type & 0x10) + +enum { /* attributes */ + CSI_OBJECT_ATTR_EXECUTABLE = 1 << 6, + CSI_OBJECT_ATTR_WRITABLE = 1 << 7 +}; +#define CSI_OBJECT_ATTR_MASK (CSI_OBJECT_ATTR_EXECUTABLE | \ + CSI_OBJECT_ATTR_WRITABLE) +#define CSI_OBJECT_TYPE_MASK (~CSI_OBJECT_ATTR_MASK) + +typedef struct _cairo_script_interpreter csi_t; + +typedef cairo_bool_t csi_boolean_t; +typedef csi_status_t (*csi_operator_t) (csi_t *); +typedef float csi_real_t; +typedef long csi_integer_t; +typedef intptr_t csi_name_t; +typedef struct _csi_array csi_array_t; +typedef struct _csi_buffer csi_buffer_t; +typedef struct _csi_compound_object csi_compound_object_t; +typedef struct _csi_dictionary csi_dictionary_t; +typedef struct _csi_file csi_file_t; +typedef struct _csi_hash_entry csi_hash_entry_t; +typedef struct _csi_hash_table csi_hash_table_t; +typedef struct _csi_hash_table_arrangement csi_hash_table_arrangement_t; +typedef struct _csi_list csi_list_t; +typedef struct _csi_matrix csi_matrix_t; +typedef struct _csi_object csi_object_t; +typedef struct _csi_scanner csi_scanner_t; +typedef struct _csi_stack csi_stack_t; +typedef struct _csi_string csi_string_t; + +typedef cairo_bool_t +(*csi_hash_predicate_func_t) (void *entry); + +typedef void +(*csi_hash_callback_func_t) (void *entry, + void *closure); + +typedef cairo_bool_t +(*csi_hash_keys_equal_func_t) (const void *key_a, const void *key_b); + +struct _csi_object { + csi_object_type_t type; + union { + cairo_t *cr; + cairo_font_face_t *font_face; + cairo_pattern_t *pattern; + cairo_scaled_font_t *scaled_font; + cairo_surface_t *surface; + csi_array_t *array; + csi_boolean_t boolean; + csi_compound_object_t *object; + csi_dictionary_t *dictionary; + csi_file_t *file; + csi_integer_t integer; + csi_matrix_t *matrix; + csi_operator_t op; + csi_name_t name; + csi_real_t real; + csi_string_t *string; + void *ptr; + } datum; +}; + +struct _csi_compound_object { + csi_object_type_t type; + unsigned int ref; +}; + +struct _csi_hash_entry { + unsigned long hash; +}; + +struct _csi_hash_table_arrangement { + unsigned long high_water_mark; + unsigned long size; + unsigned long rehash; +}; + +struct _csi_hash_table { + csi_hash_keys_equal_func_t keys_equal; + + const csi_hash_table_arrangement_t *arrangement; + csi_hash_entry_t **entries; + + unsigned long live_entries; + unsigned long used_entries; + unsigned long iterating; /* Iterating, no insert, no resize */ +}; + + +/* simple, embedded doubly-linked links */ +struct _csi_list { + struct _csi_list *next, *prev; +}; + +struct _csi_buffer { + char *base, *ptr, *end; + unsigned int size; +}; + +struct _csi_stack { + csi_object_t *objects; + csi_integer_t len; + csi_integer_t size; +}; + +struct _csi_array { + csi_compound_object_t base; + csi_stack_t stack; +}; + +typedef struct _csi_dictionary_entry { + csi_hash_entry_t hash_entry; + csi_object_t value; +} csi_dictionary_entry_t; + +struct _csi_dictionary { + csi_compound_object_t base; + csi_hash_table_t hash_table; +}; + +struct _csi_matrix { + csi_compound_object_t base; + cairo_matrix_t matrix; +}; + +struct _csi_string { + csi_compound_object_t base; + csi_integer_t len; + csi_integer_t deflate; + enum { + NONE, + ZLIB, + LZO, + } method; + char *string; +}; + +typedef struct _csi_filter_funcs { + int (*filter_getc) (csi_file_t *); + void (*filter_putc) (csi_file_t *, int); + int (*filter_read) (csi_file_t *, uint8_t *, int); + void (*filter_destroy) (csi_t *, void *); +} csi_filter_funcs_t; + +struct _csi_file { + csi_compound_object_t base; + enum { + STDIO, + BYTES, + PROCEDURE, + FILTER + } type; + unsigned int flags; + void *src; + void *data; + uint8_t *bp; + int rem; + const csi_filter_funcs_t *filter; +}; + +union _csi_union_object { + void *ptr[2]; + csi_stack_t stack; + csi_array_t arry; + csi_dictionary_t dictionary; + csi_matrix_t matrix; + csi_string_t string; + csi_file_t file; + csi_object_t object; +}; + +struct _csi_scanner { + jmp_buf jump_buffer; + int depth; + + int bind; + csi_status_t (*push) (csi_t *ctx, csi_object_t *obj); + csi_status_t (*execute) (csi_t *ctx, csi_object_t *obj); + void *closure; + + csi_buffer_t buffer; + csi_stack_t procedure_stack; + csi_object_t build_procedure; + + unsigned int accumulator; + unsigned int accumulator_count; + + unsigned int line_number; +}; + +typedef cairo_script_interpreter_hooks_t csi_hooks_t; + +typedef struct _csi_chunk { + struct _csi_chunk *next; + int rem; + char *ptr; +} csi_chunk_t; + +struct _cairo_script_interpreter { + int ref_count; + csi_status_t status; + + unsigned int finished : 1; + + csi_hooks_t hooks; + + csi_hash_table_t strings; + + csi_stack_t ostack; + csi_stack_t dstack; + + csi_scanner_t scanner; + + csi_chunk_t *perm_chunk; + struct { + csi_chunk_t *chunk; + void *free_list; + } slabs[16]; + csi_array_t *free_array; + csi_dictionary_t *free_dictionary; + csi_string_t *free_string; + + csi_operator_t opcode[256]; + + /* caches of live data */ + csi_list_t *_images; + csi_list_t *_faces; +}; + +typedef struct _csi_operator_def { + const char *name; + csi_operator_t op; +} csi_operator_def_t; + +typedef struct _csi_integer_constant_def { + const char *name; + csi_integer_t value; +} csi_integer_constant_def_t; + +typedef struct _csi_real_constant_def { + const char *name; + csi_real_t value; +} csi_real_constant_def_t; + +/* cairo-script-file.c */ + +csi_private csi_status_t +csi_file_new (csi_t *ctx, + csi_object_t *obj, + const char *path, const char *mode); + +csi_private csi_status_t +csi_file_new_for_stream (csi_t *ctx, + csi_object_t *obj, + FILE *stream); + +csi_private csi_status_t +csi_file_new_for_bytes (csi_t *ctx, + csi_object_t *obj, + const char *bytes, + unsigned int length); + +csi_private csi_status_t +csi_file_new_from_string (csi_t *ctx, + csi_object_t *obj, + csi_string_t *src); + +csi_private csi_status_t +csi_file_new_ascii85_decode (csi_t *ctx, + csi_object_t *obj, + csi_dictionary_t *dict, + csi_object_t *src); + +csi_private csi_status_t +csi_file_new_deflate_decode (csi_t *ctx, + csi_object_t *obj, + csi_dictionary_t *dict, + csi_object_t *src); + +csi_private csi_status_t +_csi_file_execute (csi_t *ctx, csi_file_t *obj); + +csi_private int +csi_file_getc (csi_file_t *obj); + +csi_private int +csi_file_read (csi_file_t *obj, void *buf, int len); + +csi_private void +csi_file_putc (csi_file_t *obj, int c); + +csi_private void +csi_file_flush (csi_file_t *obj); + +csi_private void +csi_file_close (csi_t *ctx, csi_file_t *obj); + +csi_private void +_csi_file_free (csi_t *ctx, csi_file_t *obj); + +csi_private csi_status_t +_csi_file_as_string (csi_t *ctx, + csi_file_t *file, + csi_object_t *obj); + +/* cairo-script-hash.c */ + +csi_private csi_status_t +_csi_hash_table_init (csi_hash_table_t *hash_table, + csi_hash_keys_equal_func_t keys_equal); + +csi_private void +_csi_hash_table_fini (csi_hash_table_t *hash_table); + +csi_private void * +_csi_hash_table_lookup (csi_hash_table_t *hash_table, + csi_hash_entry_t *key); + +csi_private csi_status_t +_csi_hash_table_insert (csi_hash_table_t *hash_table, + csi_hash_entry_t *entry); + +csi_private void +_csi_hash_table_remove (csi_hash_table_t *hash_table, + csi_hash_entry_t *key); + +csi_private void +_csi_hash_table_foreach (csi_hash_table_t *hash_table, + csi_hash_callback_func_t hash_callback, + void *closure); + +/* cairo-script-interpreter.c */ + +csi_private void * +_csi_alloc (csi_t *ctx, int size); + +csi_private void * +_csi_alloc0 (csi_t *ctx, int size); + +csi_private void * +_csi_realloc (csi_t *ctx, void *ptr, int size); + +csi_private void +_csi_free (csi_t *ctx, void *ptr); + +csi_private void * +_csi_slab_alloc (csi_t *ctx, int size); + +csi_private void * +_csi_perm_alloc (csi_t *ctx, int size); + +csi_private void +_csi_slab_free (csi_t *ctx, void *ptr, int size); + +csi_private csi_status_t +csi_push_ostack (csi_t *ctx, csi_object_t *obj); + +csi_private csi_status_t +_csi_name_define (csi_t *ctx, csi_name_t name, csi_object_t *obj); + +csi_private csi_status_t +_csi_name_lookup (csi_t *ctx, csi_name_t name, csi_object_t *obj); + +csi_private csi_status_t +_csi_name_undefine (csi_t *ctx, csi_name_t name); + +csi_private csi_status_t +_csi_intern_string (csi_t *ctx, const char **str_inout, int len); + +csi_private csi_status_t +_csi_error (csi_status_t status); + +/* cairo-script-objects.c */ + +csi_private csi_status_t +csi_array_new (csi_t *ctx, + csi_integer_t initial_size, + csi_object_t *obj); + +csi_private csi_status_t +_csi_array_execute (csi_t *ctx, csi_array_t *array); + +csi_private csi_status_t +csi_array_get (csi_t *ctx, + csi_array_t *array, + long elem, + csi_object_t *value); + +csi_private csi_status_t +csi_array_put (csi_t *ctx, + csi_array_t *array, + csi_integer_t elem, + csi_object_t *value); + +csi_private csi_status_t +csi_array_append (csi_t *ctx, + csi_array_t *array, + csi_object_t *obj); + +csi_private void +csi_array_free (csi_t *ctx, csi_array_t *array); + +static inline void +csi_boolean_new (csi_object_t *obj, + csi_boolean_t v) +{ + obj->type = CSI_OBJECT_TYPE_BOOLEAN; + obj->datum.boolean = v; +} + +csi_private csi_status_t +csi_dictionary_new (csi_t *ctx, + csi_object_t *obj); + +csi_private csi_status_t +csi_dictionary_put (csi_t *ctx, + csi_dictionary_t *dict, + csi_name_t name, + csi_object_t *value); + +csi_private csi_status_t +csi_dictionary_get (csi_t *ctx, + csi_dictionary_t *dict, + csi_name_t name, + csi_object_t *value); + +csi_private csi_boolean_t +csi_dictionary_has (csi_dictionary_t *dict, + csi_name_t name); + +csi_private void +csi_dictionary_remove (csi_t *ctx, + csi_dictionary_t *dict, + csi_name_t name); + +csi_private void +csi_dictionary_free (csi_t *ctx, + csi_dictionary_t *dict); + +static inline void +csi_integer_new (csi_object_t *obj, + csi_integer_t v) +{ + obj->type = CSI_OBJECT_TYPE_INTEGER; + obj->datum.integer = v; +} + + +csi_private csi_status_t +csi_matrix_new (csi_t *ctx, + csi_object_t *obj); + +csi_private csi_status_t +csi_matrix_new_from_array (csi_t *ctx, + csi_object_t *obj, + csi_array_t *array); + +csi_private csi_status_t +csi_matrix_new_from_matrix (csi_t *ctx, + csi_object_t *obj, + const cairo_matrix_t *m); + +csi_private csi_status_t +csi_matrix_new_from_values (csi_t *ctx, + csi_object_t *obj, + double v[6]); + +csi_private void +csi_matrix_free (csi_t *ctx, + csi_matrix_t *obj); + +csi_private csi_status_t +csi_name_new (csi_t *ctx, + csi_object_t *obj, + const char *str, + int len); + +csi_private csi_status_t +csi_name_new_static (csi_t *ctx, + csi_object_t *obj, + const char *str); + +static inline void +csi_operator_new (csi_object_t *obj, + csi_operator_t op) +{ + obj->type = CSI_OBJECT_TYPE_OPERATOR | CSI_OBJECT_ATTR_EXECUTABLE; + obj->datum.op = op; +} + +static inline void +csi_real_new (csi_object_t *obj, + csi_real_t v) +{ + obj->type = CSI_OBJECT_TYPE_REAL; + obj->datum.real = v; +} + +csi_private csi_status_t +csi_string_new (csi_t *ctx, + csi_object_t *obj, + const char *str, + int len); + +csi_private csi_status_t +csi_string_deflate_new (csi_t *ctx, + csi_object_t *obj, + void *bytes, + int in_len, + int out_len); + +csi_private csi_status_t +csi_string_new_from_bytes (csi_t *ctx, + csi_object_t *obj, + char *bytes, + unsigned int len); + +csi_private void +csi_string_free (csi_t *ctx, csi_string_t *string); + +csi_private csi_status_t +csi_object_execute (csi_t *ctx, csi_object_t *obj); + +csi_private csi_object_t * +csi_object_reference (csi_object_t *obj); + +csi_private void +csi_object_free (csi_t *ctx, + csi_object_t *obj); + +csi_private csi_status_t +csi_object_as_file (csi_t *ctx, + csi_object_t *src, + csi_object_t *file); + +csi_private csi_boolean_t +csi_object_eq (csi_object_t *a, + csi_object_t *b); + +csi_private csi_status_t +csi_object_compare (csi_object_t *a, + csi_object_t *b, + int *out_cmp); + +/* cairo-script-operators.c */ + +csi_private const csi_operator_def_t * +_csi_operators (void); + +csi_private const csi_integer_constant_def_t * +_csi_integer_constants (void); + +csi_private const csi_real_constant_def_t * +_csi_real_constants (void); + +/* cairo-script-scanner.c */ + +csi_private csi_status_t +_csi_scanner_init (csi_t *ctx, csi_scanner_t *scanner); + +csi_private csi_status_t +_csi_scan_file (csi_t *ctx, csi_file_t *src); + +csi_private csi_status_t +_csi_translate_file (csi_t *ctx, + csi_file_t *file, + cairo_write_func_t write_func, + void *closure); + +csi_private void +_csi_scanner_fini (csi_t *ctx, csi_scanner_t *scanner); + +csi_private csi_boolean_t +_csi_parse_number (csi_object_t *obj, const char *s, int len); + +/* cairo-script-stack.c */ + +csi_private csi_status_t +_csi_stack_init (csi_t *ctx, csi_stack_t *stack, csi_integer_t size); + +csi_private void +_csi_stack_fini (csi_t *ctx, csi_stack_t *stack); + +csi_private csi_status_t +_csi_stack_roll (csi_t *ctx, + csi_stack_t *stack, + csi_integer_t mod, + csi_integer_t n); + +csi_private csi_status_t +_csi_stack_grow (csi_t *ctx, csi_stack_t *stack, csi_integer_t cnt); + +csi_private csi_status_t +_csi_stack_push_internal (csi_t *ctx, csi_stack_t *stack, + const csi_object_t *obj); + +csi_private csi_object_t * +_csi_stack_peek (csi_stack_t *stack, csi_integer_t i); + +csi_private void +_csi_stack_pop (csi_t *ctx, csi_stack_t *stack, csi_integer_t count); + +csi_private csi_status_t +_csi_stack_exch (csi_stack_t *stack); + +static inline csi_object_type_t +csi_object_get_type (const csi_object_t *obj) +{ + return obj->type & CSI_OBJECT_TYPE_MASK; +} + +static inline csi_boolean_t +csi_object_is_procedure (const csi_object_t *obj) +{ + return obj->type == (CSI_OBJECT_TYPE_ARRAY | CSI_OBJECT_ATTR_EXECUTABLE); +} + +static inline csi_boolean_t +csi_object_is_number (const csi_object_t *obj) +{ + int type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_BOOLEAN: + case CSI_OBJECT_TYPE_INTEGER: + case CSI_OBJECT_TYPE_REAL: + return 1; + default: + return 0; + } +} + +static inline double +csi_number_get_value (const csi_object_t *obj) +{ + int type = csi_object_get_type (obj); + switch (type) { + case CSI_OBJECT_TYPE_BOOLEAN: return obj->datum.boolean; + case CSI_OBJECT_TYPE_INTEGER: return obj->datum.integer; + case CSI_OBJECT_TYPE_REAL: return obj->datum.real; + default: return 0.; + } +} + +csi_private csi_status_t +_csi_stack_push (csi_t *ctx, csi_stack_t *stack, + const csi_object_t *obj); + +static inline csi_boolean_t +_csi_check_ostack (csi_t *ctx, csi_integer_t count) +{ + return ctx->ostack.len >= count; +} + +static inline csi_object_t * +_csi_peek_ostack (csi_t *ctx, csi_integer_t i) +{ + return &ctx->ostack.objects[ctx->ostack.len - i -1]; +} + +static inline void +_csi_pop_ostack (csi_t *ctx, csi_integer_t count) +{ + do + csi_object_free (ctx, &ctx->ostack.objects[--ctx->ostack.len]); + while (--count); +} + +static inline csi_status_t +_csi_push_ostack_copy (csi_t *ctx, csi_object_t *obj) +{ + return _csi_stack_push (ctx, &ctx->ostack, csi_object_reference (obj)); +} + +static inline csi_status_t +_csi_push_ostack (csi_t *ctx, csi_object_t *obj) +{ + return _csi_stack_push (ctx, &ctx->ostack, obj); +} + +static inline csi_status_t +_csi_push_ostack_boolean (csi_t *ctx, csi_boolean_t v) +{ + csi_object_t obj; + obj.type = CSI_OBJECT_TYPE_BOOLEAN; + obj.datum.boolean = v; + return _csi_stack_push (ctx, &ctx->ostack, &obj); +} +static inline csi_status_t +_csi_push_ostack_integer (csi_t *ctx, csi_integer_t v) +{ + csi_object_t obj; + obj.type = CSI_OBJECT_TYPE_INTEGER; + obj.datum.integer = v; + return _csi_stack_push (ctx, &ctx->ostack, &obj); +} +static inline csi_status_t +_csi_push_ostack_mark (csi_t *ctx) +{ + csi_object_t obj; + obj.type = CSI_OBJECT_TYPE_MARK; + return _csi_stack_push (ctx, &ctx->ostack, &obj); +} +static inline csi_status_t +_csi_push_ostack_null (csi_t *ctx) +{ + csi_object_t obj; + obj.type = CSI_OBJECT_TYPE_NULL; + return _csi_stack_push (ctx, &ctx->ostack, &obj); +} +static inline csi_status_t +_csi_push_ostack_real (csi_t *ctx, csi_real_t v) +{ + csi_object_t obj; + obj.type = CSI_OBJECT_TYPE_REAL; + obj.datum.real = v; + return _csi_stack_push (ctx, &ctx->ostack, &obj); +} + +#endif /* CAIRO_SCRIPT_PRIVATE_H */ diff --git a/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-scanner.c b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-scanner.c new file mode 100644 index 0000000000..167cd7a1e6 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-scanner.c @@ -0,0 +1,1905 @@ +/* + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + */ + +#include "config.h" + +#include "cairo-script-private.h" + +#include /* INT_MAX */ +#include /* pow */ +#include /* EOF */ +#include /* for {INT,UINT}*_{MIN,MAX} */ +#include /* malloc/free */ +#include /* memset */ +#include +#include + +#if HAVE_LZO +#include +#endif + +#define DEBUG_SCAN 0 + +#if WORDS_BIGENDIAN +#define le16(x) bswap_16 (x) +#define le32(x) bswap_32 (x) +#define be16(x) x +#define be32(x) x +#define to_be32(x) x +#else +#define le16(x) x +#define le32(x) x +#define be16(x) bswap_16 (x) +#define be32(x) bswap_32 (x) +#define to_be32(x) bswap_32 (x) +#endif + +/* + * whitespace: + * 0 - nul + * 9 - tab + * A - LF + * C - FF + * D - CR + * + * syntax delimiters + * ( = 28, ) = 29 - literal strings + * < = 3C, > = 3E - hex/base85 strings, dictionary name + * [ = 5B, ] = 5D - array + * { = 7B, } = 7C - procedure + * / = 5C - literal marker + * % = 25 - comment + */ + +static void +fprintf_obj (FILE *stream, csi_t *ctx, const csi_object_t *obj) +{ + switch (csi_object_get_type (obj)) { + case CSI_OBJECT_TYPE_NULL: + fprintf (stream, "NULL\n"); + break; + + /* atomics */ + case CSI_OBJECT_TYPE_BOOLEAN: + fprintf (stream, "boolean: %s\n", + obj->datum.boolean ? "true" : "false"); + break; + case CSI_OBJECT_TYPE_INTEGER: + fprintf (stream, "integer: %ld\n", obj->datum.integer); + break; + case CSI_OBJECT_TYPE_MARK: + fprintf (stream, "mark\n"); + break; + case CSI_OBJECT_TYPE_NAME: + fprintf (stream, "name: %s\n", (char *) obj->datum.name); + break; + case CSI_OBJECT_TYPE_OPERATOR: + fprintf (stream, "operator: %p\n", obj->datum.ptr); + break; + case CSI_OBJECT_TYPE_REAL: + fprintf (stream, "real: %g\n", obj->datum.real); + break; + + /* compound */ + case CSI_OBJECT_TYPE_ARRAY: + fprintf (stream, "array\n"); + break; + case CSI_OBJECT_TYPE_DICTIONARY: + fprintf (stream, "dictionary\n"); + break; + case CSI_OBJECT_TYPE_FILE: + fprintf (stream, "file\n"); + break; + case CSI_OBJECT_TYPE_MATRIX: + fprintf (stream, "matrix: [%g %g %g %g %g %g]\n", + obj->datum.matrix->matrix.xx, + obj->datum.matrix->matrix.yx, + obj->datum.matrix->matrix.xy, + obj->datum.matrix->matrix.yy, + obj->datum.matrix->matrix.x0, + obj->datum.matrix->matrix.y0); + break; + case CSI_OBJECT_TYPE_STRING: + fprintf (stream, "string: len=%ld, defate=%ld, method=%d\n", + obj->datum.string->len, obj->datum.string->deflate, obj->datum.string->method); + break; + + /* cairo */ + case CSI_OBJECT_TYPE_CONTEXT: + fprintf (stream, "context\n"); + break; + case CSI_OBJECT_TYPE_FONT: + fprintf (stream, "font\n"); + break; + case CSI_OBJECT_TYPE_PATTERN: + fprintf (stream, "pattern\n"); + break; + case CSI_OBJECT_TYPE_SCALED_FONT: + fprintf (stream, "scaled-font\n"); + break; + case CSI_OBJECT_TYPE_SURFACE: + fprintf (stream, "surface\n"); + break; + } +} + +/* takes ownership of obj */ +static inline csi_status_t +scan_push (csi_t *ctx, csi_object_t *obj) +{ + return ctx->scanner.push (ctx, obj); +} + +static inline csi_status_t +scan_execute (csi_t *ctx, csi_object_t *obj) +{ + return ctx->scanner.execute (ctx, obj); +} + +static cairo_status_t +buffer_init (csi_t *ctx, csi_buffer_t *buffer) +{ + cairo_status_t status = CSI_STATUS_SUCCESS; + + buffer->size = 16384; + buffer->base = _csi_alloc (ctx, buffer->size); + if (_csi_unlikely (buffer->base == NULL)) { + status = _csi_error (CSI_STATUS_NO_MEMORY); + buffer->size = 0; + } + + buffer->ptr = buffer->base; + buffer->end = buffer->base + buffer->size; + + return status; +} + +static void +buffer_fini (csi_t *ctx, csi_buffer_t *buffer) +{ + _csi_free (ctx, buffer->base); +} + +static void +_buffer_grow (csi_t *ctx, csi_scanner_t *scan) +{ + int newsize; + int offset; + char *base; + + if (_csi_unlikely (scan->buffer.size > INT_MAX / 2)) + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_NO_MEMORY)); + + offset = scan->buffer.ptr - scan->buffer.base; + newsize = scan->buffer.size * 2; + base = _csi_realloc (ctx, scan->buffer.base, newsize); + if (_csi_unlikely (base == NULL)) + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_NO_MEMORY)); + + scan->buffer.base = base; + scan->buffer.ptr = base + offset; + scan->buffer.end = base + newsize; + scan->buffer.size = newsize; +} + +static inline void +buffer_check (csi_t *ctx, csi_scanner_t *scan, int count) +{ + if (_csi_unlikely (scan->buffer.ptr + count > scan->buffer.end)) + _buffer_grow (ctx, scan); +} + +static inline void +buffer_add (csi_buffer_t *buffer, int c) +{ + *buffer->ptr++ = c; +} + +static inline void +buffer_reset (csi_buffer_t *buffer) +{ + buffer->ptr = buffer->base; +} + +static void +token_start (csi_scanner_t *scan) +{ + buffer_reset (&scan->buffer); +} + +static void +token_add (csi_t *ctx, csi_scanner_t *scan, int c) +{ + buffer_check (ctx, scan, 1); + buffer_add (&scan->buffer, c); +} + +static void +token_add_unchecked (csi_scanner_t *scan, int c) +{ + buffer_add (&scan->buffer, c); +} + +csi_boolean_t +_csi_parse_number (csi_object_t *obj, const char *s, int len) +{ + int radix = 0; + long long mantissa = 0; + int exponent = 0; + int sign = 1; + int decimal = -1; + int exponent_sign = 0; + const char * const end = s + len; + + switch (*s) { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + mantissa = *s - '0'; + case '+': + break; + case '-': + sign = -1; + break; + case '.': + decimal = 0; + break; + default: + return FALSE; + } + + while (++s < end) { + if (*s < '0') { + if (*s == '.') { + if (_csi_unlikely (radix)) + return FALSE; + if (_csi_unlikely (decimal != -1)) + return FALSE; + if (_csi_unlikely (exponent_sign)) + return FALSE; + + decimal = 0; + } else if (*s == '!') { + if (_csi_unlikely (radix)) + return FALSE; + if (_csi_unlikely (decimal != -1)) + return FALSE; + if (_csi_unlikely (exponent_sign)) + return FALSE; + + radix = mantissa; + mantissa = 0; + + if (_csi_unlikely (radix < 2 || radix > 36)) + return FALSE; + } else + return FALSE; + } else if (*s <= '9') { + int v = *s - '0'; + if (_csi_unlikely (radix && v >= radix)) + return FALSE; + + if (exponent_sign) { + exponent = 10 * exponent + v; + } else { + if (radix) + mantissa = radix * mantissa + v; + else + mantissa = 10 * mantissa + v; + if (decimal != -1) + decimal++; + } + } else if (*s == 'E' || * s== 'e') { + if (radix == 0) { + if (_csi_unlikely (s + 1 == end)) + return FALSE; + + exponent_sign = 1; + if (s[1] == '-') { + exponent_sign = -1; + s++; + } else if (s[1] == '+') + s++; + } else { + int v = 0xe; + + if (_csi_unlikely (v >= radix)) + return FALSE; + + mantissa = radix * mantissa + v; + } + } else if (*s < 'A') { + return FALSE; + } else if (*s <= 'Z') { + int v = *s - 'A' + 0xA; + + if (_csi_unlikely (v >= radix)) + return FALSE; + + mantissa = radix * mantissa + v; + } else if (*s < 'a') { + return FALSE; + } else if (*s <= 'z') { + int v = *s - 'a' + 0xa; + + if (_csi_unlikely (v >= radix)) + return FALSE; + + mantissa = radix * mantissa + v; + } else + return FALSE; + } + + if (exponent_sign || decimal != -1) { + if (mantissa == 0) { + obj->type = CSI_OBJECT_TYPE_REAL; + obj->datum.real = 0.; + return TRUE; + } else { + int e; + double v; + + v = mantissa; + e = exponent * exponent_sign; + if (decimal != -1) + e -= decimal; + switch (e) { + case -7: v *= 0.0000001; break; + case -6: v *= 0.000001; break; + case -5: v *= 0.00001; break; + case -4: v *= 0.0001; break; + case -3: v *= 0.001; break; + case -2: v *= 0.01; break; + case -1: v *= 0.1; break; + case 0: break; + case 1: v *= 10; break; + case 2: v *= 100; break; + case 3: v *= 1000; break; + case 4: v *= 10000; break; + case 5: v *= 100000; break; + case 6: v *= 1000000; break; + default: + v *= pow (10, e); /* XXX */ + break; + } + + obj->type = CSI_OBJECT_TYPE_REAL; + obj->datum.real = sign * v; + return TRUE; + } + } else { + obj->type = CSI_OBJECT_TYPE_INTEGER; + obj->datum.integer = sign * mantissa; + return TRUE; + } +} + +static void +token_end (csi_t *ctx, csi_scanner_t *scan, csi_file_t *src) +{ + cairo_status_t status; + char *s; + csi_object_t obj; + int len; + + /* + * Any token that consists entirely of regular characters and + * cannot be interpreted as a number is treated as a name object + * (more precisely, an executable name). All characters except + * delimiters and white-space characters can appear in names, + * including characters ordinarily considered to be punctuation. + */ + + if (_csi_unlikely (scan->buffer.ptr == scan->buffer.base)) + return; + + s = scan->buffer.base; + len = scan->buffer.ptr - scan->buffer.base; + + if (_csi_likely (! scan->bind)) { + if (s[0] == '{') { /* special case procedures */ + if (scan->build_procedure.type != CSI_OBJECT_TYPE_NULL) { + status = _csi_stack_push (ctx, + &scan->procedure_stack, + &scan->build_procedure); + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); + } + + status = csi_array_new (ctx, 0, &scan->build_procedure); + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); + + scan->build_procedure.type |= CSI_OBJECT_ATTR_EXECUTABLE; + return; + } else if (s[0] == '}') { + if (_csi_unlikely + (scan->build_procedure.type == CSI_OBJECT_TYPE_NULL)) + { + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_INVALID_SCRIPT)); + } + + if (scan->procedure_stack.len) { + csi_object_t *next; + + next = _csi_stack_peek (&scan->procedure_stack, 0); + status = csi_array_append (ctx, next->datum.array, + &scan->build_procedure); + scan->build_procedure = *next; + scan->procedure_stack.len--; + } else { + status = scan_push (ctx, &scan->build_procedure); + scan->build_procedure.type = CSI_OBJECT_TYPE_NULL; + } + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); + + return; + } + } + + if (s[0] == '/') { + if (len >= 2 && s[1] == '/') { /* substituted name */ + status = csi_name_new (ctx, &obj, s + 2, len - 2); + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); + + status = _csi_name_lookup (ctx, obj.datum.name, &obj); + } else { /* literal name */ + status = csi_name_new (ctx, &obj, s + 1, len - 1); + } + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); + } else { + if (! _csi_parse_number (&obj, s, len)) { + status = csi_name_new (ctx, &obj, s, len); + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); + + obj.type |= CSI_OBJECT_ATTR_EXECUTABLE; + } + } + + /* consume whitespace after token, before calling the interpreter */ + if (scan->build_procedure.type != CSI_OBJECT_TYPE_NULL) { + status = csi_array_append (ctx, + scan->build_procedure.datum.array, + &obj); + } else if (obj.type & CSI_OBJECT_ATTR_EXECUTABLE) { + status = scan_execute (ctx, &obj); + csi_object_free (ctx, &obj); + } else { + status = scan_push (ctx, &obj); + } + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); +} + +static void +string_add (csi_t *ctx, csi_scanner_t *scan, int c) +{ + buffer_check (ctx, scan, 1); + buffer_add (&scan->buffer, c); +} + +static void +string_end (csi_t *ctx, csi_scanner_t *scan) +{ + csi_object_t obj; + cairo_status_t status; + + status = csi_string_new (ctx, + &obj, + scan->buffer.base, + scan->buffer.ptr - scan->buffer.base); + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); + + if (scan->build_procedure.type != CSI_OBJECT_TYPE_NULL) + status = csi_array_append (ctx, + scan->build_procedure.datum.array, + &obj); + else + status = scan_push (ctx, &obj); + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); +} + +static int +hex_value (int c) +{ + if (c < '0') + return EOF; + if (c <= '9') + return c - '0'; + c |= 32; + if (c < 'a') + return EOF; + if (c <= 'f') + return c - 'a' + 0xa; + return EOF; +} + +static void +hex_add (csi_t *ctx, csi_scanner_t *scan, int c) +{ + if (scan->accumulator_count == 0) { + scan->accumulator |= hex_value (c) << 4; + scan->accumulator_count = 1; + } else { + scan->accumulator |= hex_value (c) << 0; + buffer_check (ctx, scan, 1); + buffer_add (&scan->buffer, scan->accumulator); + + scan->accumulator = 0; + scan->accumulator_count = 0; + } +} + +static void +hex_end (csi_t *ctx, csi_scanner_t *scan) +{ + csi_object_t obj; + cairo_status_t status; + + if (scan->accumulator_count) + hex_add (ctx, scan, '0'); + + status = csi_string_new (ctx, + &obj, + scan->buffer.base, + scan->buffer.ptr - scan->buffer.base); + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); + + if (scan->build_procedure.type != CSI_OBJECT_TYPE_NULL) + status = csi_array_append (ctx, + scan->build_procedure.datum.array, + &obj); + else + status = scan_push (ctx, &obj); + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); +} + +static void +base85_add (csi_t *ctx, csi_scanner_t *scan, int c) +{ + if (c == 'z') { + if (_csi_unlikely (scan->accumulator_count != 0)) + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_INVALID_SCRIPT)); + + buffer_check (ctx, scan, 4); + buffer_add (&scan->buffer, 0); + buffer_add (&scan->buffer, 0); + buffer_add (&scan->buffer, 0); + buffer_add (&scan->buffer, 0); + } else if (_csi_unlikely (c < '!' || c > 'u')) { + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_INVALID_SCRIPT)); + } else { + scan->accumulator = scan->accumulator*85 + c - '!'; + if (++scan->accumulator_count == 5) { + buffer_check (ctx, scan, 4); + buffer_add (&scan->buffer, (scan->accumulator >> 24) & 0xff); + buffer_add (&scan->buffer, (scan->accumulator >> 16) & 0xff); + buffer_add (&scan->buffer, (scan->accumulator >> 8) & 0xff); + buffer_add (&scan->buffer, (scan->accumulator >> 0) & 0xff); + + scan->accumulator = 0; + scan->accumulator_count = 0; + } + } +} + +static void +base85_end (csi_t *ctx, csi_scanner_t *scan, cairo_bool_t deflate) +{ + csi_object_t obj; + cairo_status_t status; + + buffer_check (ctx, scan, 4); + + switch (scan->accumulator_count) { + case 0: + break; + case 1: + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_INVALID_SCRIPT)); + break; + + case 2: + scan->accumulator = scan->accumulator * (85*85*85) + 85*85*85 -1; + buffer_add (&scan->buffer, (scan->accumulator >> 24) & 0xff); + break; + case 3: + scan->accumulator = scan->accumulator * (85*85) + 85*85 -1; + buffer_add (&scan->buffer, (scan->accumulator >> 24) & 0xff); + buffer_add (&scan->buffer, (scan->accumulator >> 16) & 0xff); + break; + case 4: + scan->accumulator = scan->accumulator * 85 + 84; + buffer_add (&scan->buffer, (scan->accumulator >> 24) & 0xff); + buffer_add (&scan->buffer, (scan->accumulator >> 16) & 0xff); + buffer_add (&scan->buffer, (scan->accumulator >> 8) & 0xff); + break; + } + + if (deflate) { + uLongf len = be32 (*(uint32_t *) scan->buffer.base); + Bytef *source = (Bytef *) (scan->buffer.base + sizeof (uint32_t)); + + status = csi_string_deflate_new (ctx, &obj, + source, + (Bytef *) scan->buffer.ptr - source, + len); + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); + } else { + status = csi_string_new (ctx, + &obj, + scan->buffer.base, + scan->buffer.ptr - scan->buffer.base); + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); + } + + if (scan->build_procedure.type != CSI_OBJECT_TYPE_NULL) + status = csi_array_append (ctx, + scan->build_procedure.datum.array, + &obj); + else + status = scan_push (ctx, &obj); + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); +} + +static void +base64_add (csi_t *ctx, csi_scanner_t *scan, int c) +{ + int val; + + /* Convert Base64 character to its 6 bit nibble */ + val = scan->accumulator; + if (c =='/') { + val = (val << 6) | 63; + } else if (c =='+') { + val = (val << 6) | 62; + } else if (c >='A' && c <='Z') { + val = (val << 6) | (c -'A'); + } else if (c >='a' && c <='z') { + val = (val << 6) | (c -'a' + 26); + } else if (c >='0' && c <='9') { + val = (val << 6) | (c -'0' + 52); + } + + buffer_check (ctx, scan, 1); + switch (scan->accumulator_count++) { + case 0: + break; + + case 1: + buffer_add (&scan->buffer, (val >> 4) & 0xFF); + val &= 0xF; + break; + + case 2: + buffer_add (&scan->buffer, (val >> 2) & 0xFF); + val &= 0x3; + break; + + case 3: + buffer_add (&scan->buffer, (val >> 0) & 0xFF); + scan->accumulator_count = 0; + val = 0; + break; + } + + if (c == '=') { + scan->accumulator_count = 0; + scan->accumulator = 0; + } else { + scan->accumulator = val; + } +} + +static void +base64_end (csi_t *ctx, csi_scanner_t *scan) +{ + csi_object_t obj; + cairo_status_t status; + + switch (scan->accumulator_count) { + case 0: + break; + case 2: + base64_add (ctx, scan, (scan->accumulator << 2) & 0x3f); + base64_add (ctx, scan, '='); + break; + case 1: + base64_add (ctx, scan, (scan->accumulator << 4) & 0x3f); + base64_add (ctx, scan, '='); + base64_add (ctx, scan, '='); + break; + } + + status = csi_string_new (ctx, + &obj, + scan->buffer.base, + scan->buffer.ptr - scan->buffer.base); + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); + + if (scan->build_procedure.type != CSI_OBJECT_TYPE_NULL) + status = csi_array_append (ctx, + scan->build_procedure.datum.array, + &obj); + else + status = scan_push (ctx, &obj); + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); +} + +static void +scan_read (csi_scanner_t *scan, csi_file_t *src, void *ptr, int len) +{ + uint8_t *data = ptr; + do { + int ret = csi_file_read (src, data, len); + if (_csi_unlikely (ret == 0)) + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_READ_ERROR)); + data += ret; + len -= ret; + } while (_csi_unlikely (len)); +} + +static void +string_read (csi_t *ctx, + csi_scanner_t *scan, + csi_file_t *src, + int len, + int compressed, + csi_object_t *obj) +{ + csi_status_t status; + + status = csi_string_new (ctx, obj, NULL, len); + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); + + if (compressed) { + uint32_t u32; + scan_read (scan, src, &u32, 4); + obj->datum.string->deflate = be32 (u32); + obj->datum.string->method = compressed; + } + + if (_csi_likely (len)) + scan_read (scan, src, obj->datum.string->string, len); + obj->datum.string->string[len] = '\0'; +} + +static void +_scan_file (csi_t *ctx, csi_file_t *src) +{ + csi_scanner_t *scan = &ctx->scanner; + int c, next; + union { + int8_t i8; + uint8_t u8; + int16_t i16; + uint16_t u16; + int32_t i32; + uint32_t u32; + float f; + } u; + int deflate = 0; + int string_p; + +scan_none: + while ((c = csi_file_getc (src)) != EOF) { + csi_object_t obj = { CSI_OBJECT_TYPE_NULL }; + + switch (c) { + case 0xa: + scan->line_number++; + case 0x0: + case 0x9: + case 0xc: + case 0xd: + case 0x20: /* ignore whitespace */ + break; + + case '%': + goto scan_comment; + + case '(': + goto scan_string; + + case '[': /* needs special case */ + case ']': + case '{': + case '}': + token_start (scan); + token_add_unchecked (scan, c); + token_end (ctx, scan, src); + goto scan_none; + + case '<': + next = csi_file_getc (src); + switch (next) { + case EOF: + csi_file_putc (src, '<'); + return; + case '<': + /* dictionary name */ + token_start (scan); + token_add_unchecked (scan, '<'); + token_add_unchecked (scan, '<'); + token_end (ctx, scan, src); + goto scan_none; + case '|': + deflate = 1; + case '~': + goto scan_base85; + case '{': + goto scan_base64; + default: + csi_file_putc (src, next); + goto scan_hex; + } + break; + + /* binary token */ +#define MSB_INT8 128 +#define MSB_UINT8 129 +#define MSB_INT16 130 +#define MSB_UINT16 131 +#define MSB_INT32 132 +#define LSB_INT8 MSB_INT8 +#define LSB_UINT8 MSB_UINT8 +#define LSB_INT16 133 +#define LSB_UINT16 134 +#define LSB_INT32 135 +#define MSB_FLOAT32 140 +#define LSB_FLOAT32 141 + case MSB_INT8: + scan_read (scan, src, &u.i8, 1); + csi_integer_new (&obj, u.i8); + break; + case MSB_UINT8: + scan_read (scan, src, &u.u8, 1); + csi_integer_new (&obj, u.u8); + break; + case MSB_INT16: + scan_read (scan, src, &u.i16, 2); + csi_integer_new (&obj, be16 (u.i16)); + break; + case LSB_INT16: + scan_read (scan, src, &u.i16, 2); + csi_integer_new (&obj, le16 (u.i16)); + break; + case MSB_UINT16: + scan_read (scan, src, &u.u16, 2); + csi_integer_new (&obj, be16 (u.u16)); + break; + case LSB_UINT16: + scan_read (scan, src, &u.u16, 2); + csi_integer_new (&obj, le16 (u.u16)); + break; + case MSB_INT32: + scan_read (scan, src, &u.i32, 4); + csi_integer_new (&obj, be32 (u.i32)); + break; + case LSB_INT32: + scan_read (scan, src, &u.i32, 4); + csi_integer_new (&obj, le32 (u.i32)); + break; + + case 136: /* 16.16 msb */ + scan_read (scan, src, &u.i32, 4); + csi_real_new (&obj, be32 (u.i32) / 65536.); + break; + case 137: /* 16.16 lsb */ + scan_read (scan, src, &u.i32, 4); + csi_real_new (&obj, le32 (u.i32) / 65536.); + break; + case 138: /* 24.8 msb */ + scan_read (scan, src, &u.i32, 4); + csi_real_new (&obj, be32 (u.i32) / 256.); + break; + case 139: /* 24.8 lsb */ + scan_read (scan, src, &u.i32, 4); + csi_real_new (&obj, le32 (u.i32) / 256.); + break; + case MSB_FLOAT32: + scan_read (scan, src, &u.i32, 4); + u.i32 = be32 (u.i32); + csi_real_new (&obj, u.f); + break; + case LSB_FLOAT32: + scan_read (scan, src, &u.i32, 4); + u.i32 = le32 (u.i32); + csi_real_new (&obj, u.f); + break; + +#define STRING_1 142 +#define STRING_2_MSB 144 +#define STRING_2_LSB 146 +#define STRING_4_MSB 148 +#define STRING_4_LSB 150 +#define STRING_DEFLATE 1 + case STRING_1: + case STRING_1 | STRING_DEFLATE: + scan_read (scan, src, &u.u8, 1); + string_read (ctx, scan, src, u.u8, c & STRING_DEFLATE, &obj); + break; + case STRING_2_MSB: + case STRING_2_MSB | STRING_DEFLATE: + scan_read (scan, src, &u.u16, 2); + string_read (ctx, scan, src, be16 (u.u16), c & STRING_DEFLATE, &obj); + break; + case STRING_2_LSB: + case STRING_2_LSB | STRING_DEFLATE: + scan_read (scan, src, &u.u16, 2); + string_read (ctx, scan, src, le16 (u.u16), c & STRING_DEFLATE, &obj); + break; + case STRING_4_MSB: + case STRING_4_MSB | STRING_DEFLATE: + scan_read (scan, src, &u.u32, 4); + string_read (ctx, scan, src, be32 (u.u32), c & STRING_DEFLATE, &obj); + break; + case STRING_4_LSB: + case STRING_4_LSB | STRING_DEFLATE: + scan_read (scan, src, &u.u32, 4); + string_read (ctx, scan, src, le32 (u.u32), c & STRING_DEFLATE, &obj); + break; + +#define OPCODE 152 + case OPCODE: + scan_read (scan, src, &u.u8, 1); + csi_operator_new (&obj, ctx->opcode[u.u8]); + break; + + case OPCODE | 1: + scan_read (scan, src, &u.u8, 1); + csi_operator_new (&obj, ctx->opcode[u.u8]); + obj.type &= ~CSI_OBJECT_ATTR_EXECUTABLE; + break; + +#define STRING_LZO 154 + case STRING_LZO: + scan_read (scan, src, &u.u32, 4); + string_read (ctx, scan, src, be32 (u.u32), LZO, &obj); + break; + + /* unassigned */ + case 155: + case 156: + case 157: + case 158: + case 159: + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_INVALID_SCRIPT)); + + case '#': /* PDF 1.2 escape code */ + { + int c_hi = csi_file_getc (src); + int c_lo = csi_file_getc (src); + c = (hex_value (c_hi) << 4) | hex_value (c_lo); + } + /* fall-through */ + default: + token_start (scan); + token_add_unchecked (scan, c); + goto scan_token; + } + + if (obj.type != CSI_OBJECT_TYPE_NULL) { + cairo_status_t status; + + if (scan->build_procedure.type != CSI_OBJECT_TYPE_NULL) { + status = csi_array_append (ctx, + scan->build_procedure.datum.array, + &obj); + } else if (obj.type & CSI_OBJECT_ATTR_EXECUTABLE) { + status = scan_execute (ctx, &obj); + csi_object_free (ctx, &obj); + } else { + status = scan_push (ctx, &obj); + } + if (_csi_unlikely (status)) + longjmp (scan->jump_buffer, status); + } + } + return; + +scan_token: + while ((c = csi_file_getc (src)) != EOF) { + switch (c) { + case 0xa: + scan->line_number++; + /* fall through */ + case 0x0: + case 0x9: + case 0xc: + case 0xd: + case 0x20: + token_end (ctx, scan, src); + goto scan_none; + + /* syntax delimiters */ + case '%': + token_end (ctx, scan, src); + goto scan_comment; + /* syntax error? */ + case '(': + token_end (ctx, scan, src); + goto scan_string; + /* XXX syntax error? */ + case ')': + token_end (ctx, scan, src); + goto scan_none; + case '/': + /* need to special case '^//?' */ + if (scan->buffer.ptr > scan->buffer.base+1 || + scan->buffer.base[0] != '/') + { + token_end (ctx, scan, src); + token_start (scan); + } + token_add_unchecked (scan, '/'); + goto scan_token; + + case '{': + case '}': + case ']': + token_end (ctx, scan, src); + token_start (scan); + token_add_unchecked (scan, c); + token_end (ctx, scan, src); + goto scan_none; + + case '<': + csi_file_putc (src, '<'); + token_end (ctx, scan, src); + goto scan_none; + + case '#': /* PDF 1.2 escape code */ + { + int c_hi = csi_file_getc (src); + int c_lo = csi_file_getc (src); + c = (hex_value (c_hi) << 4) | hex_value (c_lo); + } + /* fall-through */ + default: + token_add (ctx, scan, c); + break; + } + } + token_end (ctx, scan, src); + return; + +scan_comment: + /* discard until newline */ + while ((c = csi_file_getc (src)) != EOF) { + switch (c) { + case 0xa: + scan->line_number++; + case 0xc: + goto scan_none; + } + } + return; + +scan_string: + buffer_reset (&scan->buffer); + string_p = 1; + while ((c = csi_file_getc (src)) != EOF) { + switch (c) { + case '\\': /* escape */ + next = csi_file_getc (src); + switch (next) { + case EOF: + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_INVALID_SCRIPT)); + + case 'n': + string_add (ctx, scan, '\n'); + break; + case 'r': + string_add (ctx, scan, '\r'); + break; + case 't': + string_add (ctx, scan, '\t'); + break; + case 'b': + string_add (ctx, scan, '\b'); + break; + case 'f': + string_add (ctx, scan, '\f'); + break; + case '\\': + string_add (ctx, scan, '\\'); + break; + case '(': + string_add (ctx, scan, '('); + break; + case ')': + string_add (ctx, scan, ')'); + break; + + case '0': case '1': case '2': case '3': + case '4': case '5': case '6': case '7': + { /* octal code: \d{1,3} */ + int i; + + c = next - '0'; + + for (i = 0; i < 2; i++) { + next = csi_file_getc (src); + switch (next) { + case EOF: + return; + + case '0': case '1': case '2': case '3': + case '4': case '5': case '6': case '7': + c = 8*c + next-'0'; + break; + + default: + csi_file_putc (src, next); + goto octal_code_done; + } + } + octal_code_done: + string_add (ctx, scan, c); + } + break; + + case 0xa: + /* skip the newline */ + next = csi_file_getc (src); /* might be compound LFCR */ + switch (next) { + case EOF: + return; + case 0xc: + break; + default: + csi_file_putc (src, next); + break; + } + scan->line_number++; + break; + case 0xc: + break; + + default: + /* ignore the '\' */ + break; + } + break; + + case '(': + string_p++; + string_add (ctx, scan, c); + break; + + case ')': + if (--string_p == 0) { + string_end (ctx, scan); + goto scan_none; + } + /* fall through */ + default: + string_add (ctx, scan, c); + break; + } + } + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_INVALID_SCRIPT)); + +scan_hex: + buffer_reset (&scan->buffer); + scan->accumulator_count = 0; + scan->accumulator = 0; + while ((c = csi_file_getc (src)) != EOF) { + switch (c) { + case 0xa: + scan->line_number++; + case 0x0: + case 0x9: + case 0xc: + case 0xd: + case 0x20: /* ignore whitespace */ + break; + + case '>': + hex_end (ctx, scan); /* fixup odd digit with '0' */ + goto scan_none; + + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + case 'a': + case 'b': + case 'c': + case 'd': + case 'e': + case 'f': + case 'A': + case 'B': + case 'C': + case 'D': + case 'E': + case 'F': + hex_add (ctx, scan, c); + break; + + default: + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_INVALID_SCRIPT)); + } + } + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_INVALID_SCRIPT)); + +scan_base85: + buffer_reset (&scan->buffer); + scan->accumulator = 0; + scan->accumulator_count = 0; + while ((c = csi_file_getc (src)) != EOF) { + switch (c) { + case '~': + next = csi_file_getc (src); + switch (next) { + case EOF: + return; + + case '>': + base85_end (ctx, scan, deflate); + deflate = 0; + goto scan_none; + } + csi_file_putc (src, next); + + /* fall-through */ + default: + base85_add (ctx, scan, c); + break; + } + } + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_INVALID_SCRIPT)); + +scan_base64: + buffer_reset (&scan->buffer); + scan->accumulator = 0; + scan->accumulator_count = 0; + while ((c = csi_file_getc (src)) != EOF) { + switch (c) { + case '}': + next = csi_file_getc (src); + switch (next) { + case EOF: + return; + + case '>': + base64_end (ctx, scan); + goto scan_none; + } + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_INVALID_SCRIPT)); + + default: + base64_add (ctx, scan, c); + break; + } + } + longjmp (scan->jump_buffer, _csi_error (CSI_STATUS_INVALID_SCRIPT)); +} + +static csi_status_t +_scan_push (csi_t *ctx, csi_object_t *obj) +{ + if (DEBUG_SCAN) { + fprintf (stderr, "push "); + fprintf_obj (stderr, ctx, obj); + } + return _csi_push_ostack (ctx, obj); +} + +static csi_status_t +_scan_execute (csi_t *ctx, csi_object_t *obj) +{ + if (DEBUG_SCAN) { + fprintf (stderr, "exec "); + fprintf_obj (stderr, ctx, obj); + } + return csi_object_execute (ctx, obj); +} + +csi_status_t +_csi_scanner_init (csi_t *ctx, csi_scanner_t *scanner) +{ + csi_status_t status; + + memset (scanner, 0, sizeof (csi_scanner_t)); + + status = buffer_init (ctx, &scanner->buffer); + if (status) + return status; + + status = _csi_stack_init (ctx, &scanner->procedure_stack, 4); + if (status) + return status; + + scanner->bind = 0; + scanner->push = _scan_push; + scanner->execute = _scan_execute; + + return CSI_STATUS_SUCCESS; +} + +void +_csi_scanner_fini (csi_t *ctx, csi_scanner_t *scanner) +{ + buffer_fini (ctx, &scanner->buffer); + _csi_stack_fini (ctx, &scanner->procedure_stack); + if (scanner->build_procedure.type != CSI_OBJECT_TYPE_NULL) + csi_object_free (ctx, &scanner->build_procedure); +} + +csi_status_t +_csi_scan_file (csi_t *ctx, csi_file_t *src) +{ + csi_status_t status; + int old_line_number; + + /* This function needs to be reentrant to handle recursive scanners. + * i.e. one script executes a second. + */ + + if (ctx->scanner.depth++ == 0) { + if ((status = setjmp (ctx->scanner.jump_buffer))) { + ctx->scanner.depth = 0; + return status; + } + } + + old_line_number = ctx->scanner.line_number; + ctx->scanner.line_number = 0; + + _scan_file (ctx, src); + + ctx->scanner.line_number = old_line_number; + + --ctx->scanner.depth; + return CSI_STATUS_SUCCESS; +} + +struct _translate_closure { + csi_dictionary_t *opcodes; + cairo_write_func_t write_func; + void *closure; +}; + +static csi_status_t +_translate_name (csi_t *ctx, + csi_name_t name, + csi_boolean_t executable, + struct _translate_closure *closure) +{ + if (executable) { + csi_dictionary_entry_t *entry; + uint16_t u16; + + /* Bind executable names. + * XXX This may break some scripts that overload system operators. + */ + entry = _csi_hash_table_lookup (&closure->opcodes->hash_table, + (csi_hash_entry_t *) &name); + if (entry == NULL) + goto STRING; + + u16 = entry->value.datum.integer; + u16 = be16 (u16); + closure->write_func (closure->closure, (unsigned char *) &u16, 2); + } else { + closure->write_func (closure->closure, (unsigned char *) "/", 1); +STRING: + closure->write_func (closure->closure, + (unsigned char *) name, + strlen ((char *) name)); + closure->write_func (closure->closure, (unsigned char *) "\n", 1); + } + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_translate_operator (csi_t *ctx, + csi_operator_t op, + csi_boolean_t executable, + struct _translate_closure *closure) +{ + csi_dictionary_entry_t *entry; + uint16_t u16; + + entry = _csi_hash_table_lookup (&closure->opcodes->hash_table, + (csi_hash_entry_t *) &op); + if (entry == NULL) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + u16 = entry->value.datum.integer; + if (! executable) + u16 += 1 << 8; + u16 = be16 (u16); + closure->write_func (closure->closure, (unsigned char *) &u16, 2); + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_translate_integer (csi_t *ctx, + csi_integer_t i, + struct _translate_closure *closure) +{ + uint8_t hdr; + union { + int8_t i8; + uint8_t u8; + int16_t i16; + uint16_t u16; + int32_t i32; + uint32_t u32; + } u; + int len; + +#if WORDS_BIGENDIAN + if (i < INT16_MIN) { + hdr = MSB_INT32; + len = 4; + u.i32 = i; + } else if (i < INT8_MIN) { + hdr = MSB_INT16; + len = 2; + u.i16 = i; + } else if (i < 0) { + hdr = MSB_INT8; + len = 1; + u.i8 = i; + } else if (i <= UINT8_MAX) { + hdr = MSB_UINT8; + len = 1; + u.u8 = i; + } else if (i <= UINT16_MAX) { + hdr = MSB_UINT16; + len = 2; + u.u16 = i; + } else { + hdr = MSB_INT32; + len = 4; + u.u32 = i; + } +#else + if (i < INT16_MIN) { + hdr = LSB_INT32; + len = 4; + u.i32 = i; + } else if (i < INT8_MIN) { + hdr = LSB_INT16; + len = 2; + u.i16 = i; + } else if (i < 0) { + hdr = LSB_INT8; + len = 1; + u.i8 = i; + } else if (i <= UINT8_MAX) { + hdr = LSB_UINT8; + len = 1; + u.u8 = i; + } else if (i <= UINT16_MAX) { + hdr = LSB_UINT16; + len = 2; + u.u16 = i; + } else { + hdr = LSB_INT32; + len = 4; + u.u32 = i; + } +#endif + + closure->write_func (closure->closure, (unsigned char *) &hdr, 1); + closure->write_func (closure->closure, (unsigned char *) &u, len); + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_translate_real (csi_t *ctx, + csi_real_t real, + struct _translate_closure *closure) +{ + uint8_t hdr; + + if ((double)real >= INT32_MIN && (double)real <= INT32_MAX && (int) real == real) + return _translate_integer (ctx, real, closure); + +#if WORDS_BIGENDIAN + hdr = MSB_FLOAT32; +#else + hdr = LSB_FLOAT32; +#endif + closure->write_func (closure->closure, (unsigned char *) &hdr, 1); + closure->write_func (closure->closure, (unsigned char *) &real, 4); + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_translate_string (csi_t *ctx, + csi_string_t *string, + struct _translate_closure *closure) +{ + uint8_t hdr; + union { + uint8_t u8; + uint16_t u16; + uint32_t u32; + } u; + void *buf; + unsigned long hdr_len, buf_len, deflate; + int method; + + buf = string->string; + buf_len = string->len; + deflate = string->deflate; + method = string->method; + +#if HAVE_LZO + if (method == NONE && buf_len > 16) { + unsigned long mem_len = 2*string->len > LZO2A_999_MEM_COMPRESS ? 2*string->len : LZO2A_999_MEM_COMPRESS; + void *mem = malloc (mem_len); + void *work = malloc(LZO2A_999_MEM_COMPRESS); + + if (lzo2a_999_compress ((lzo_bytep) buf, buf_len, + (lzo_bytep) mem, &mem_len, + work) == 0 && + 8+2*mem_len < buf_len) + { + method = LZO; + deflate = buf_len; + buf_len = mem_len; + buf = mem; + } + else + { + free (mem); + } + + free (work); + } +#if HAVE_ZLIB + if (method == ZLIB) { + buf_len = string->deflate; + buf = malloc (string->deflate); + if (uncompress ((Bytef *) buf, &buf_len, + (Bytef *) string->string, string->len) == Z_OK) + { + assert(string->len > 0); + if (buf_len <= 8 + 2*((unsigned long)string->len)) { + method = NONE; + deflate = 0; + } else { + unsigned long mem_len = 2*string->deflate; + void *mem = malloc (mem_len); + void *work = malloc(LZO2A_999_MEM_COMPRESS); + + if (lzo2a_999_compress ((lzo_bytep) buf, buf_len, + (lzo_bytep) mem, &mem_len, + work) == 0) + { + if (8 + mem_len > buf_len) { + method = NONE; + deflate = 0; + } else { + free (buf); + method = LZO; + deflate = buf_len; + buf_len = mem_len; + buf = mem; + assert(deflate); + } + } + else + { + free (buf); + buf = string->string; + buf_len = string->len; + } + + free (work); + } + } + else + { + free (buf); + buf = string->string; + buf_len = string->len; + } + } +#endif +#endif + + if (method == LZO) { + hdr = STRING_LZO; + u.u32 = to_be32 (buf_len); + hdr_len = 4; + } else { +#if WORDS_BIGENDIAN + if (buf_len <= UINT8_MAX) { + hdr = STRING_1; + u.u8 = buf_len; + hdr_len = 1; + } else if (buf_len <= UINT16_MAX) { + hdr = STRING_2_MSB; + u.u16 = buf_len; + hdr_len = 2; + } else { + hdr = STRING_4_MSB; + u.u32 = buf_len; + hdr_len = 4; + } +#else + if (buf_len <= UINT8_MAX) { + hdr = STRING_1; + u.u8 = buf_len; + hdr_len = 1; + } else if (buf_len <= UINT16_MAX) { + hdr = STRING_2_LSB; + u.u16 = buf_len; + hdr_len = 2; + } else { + hdr = STRING_4_LSB; + u.u32 = buf_len; + hdr_len = 4; + } +#endif + if (deflate) { + assert (method == ZLIB); + hdr |= STRING_DEFLATE; + } + } + + closure->write_func (closure->closure, (unsigned char *) &hdr, 1); + closure->write_func (closure->closure, (unsigned char *) &u, hdr_len); + if (deflate) { + uint32_t u32 = to_be32 (deflate); + closure->write_func (closure->closure, (unsigned char *) &u32, 4); + } + closure->write_func (closure->closure, (unsigned char *) buf, buf_len); + + if (buf != string->string) + free (buf); + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_translate_push (csi_t *ctx, csi_object_t *obj) +{ + struct _translate_closure *closure = ctx->scanner.closure; + + if (0) { + fprintf (stderr, "push "); + fprintf_obj (stderr, ctx, obj); + } + + switch (csi_object_get_type (obj)) { + case CSI_OBJECT_TYPE_NAME: + return _translate_name (ctx, obj->datum.name, FALSE, closure); + + case CSI_OBJECT_TYPE_OPERATOR: + return _translate_operator (ctx, obj->datum.op, FALSE, closure); + + case CSI_OBJECT_TYPE_INTEGER: + return _translate_integer (ctx, obj->datum.integer, closure); + + case CSI_OBJECT_TYPE_REAL: + return _translate_real (ctx, obj->datum.real, closure); + + case CSI_OBJECT_TYPE_STRING: + return _translate_string (ctx, obj->datum.string, closure); + + case CSI_OBJECT_TYPE_NULL: + case CSI_OBJECT_TYPE_BOOLEAN: + case CSI_OBJECT_TYPE_MARK: + case CSI_OBJECT_TYPE_ARRAY: + case CSI_OBJECT_TYPE_DICTIONARY: + case CSI_OBJECT_TYPE_FILE: + case CSI_OBJECT_TYPE_MATRIX: + case CSI_OBJECT_TYPE_CONTEXT: + case CSI_OBJECT_TYPE_FONT: + case CSI_OBJECT_TYPE_PATTERN: + case CSI_OBJECT_TYPE_SCALED_FONT: + case CSI_OBJECT_TYPE_SURFACE: + longjmp (ctx->scanner.jump_buffer, _csi_error (CSI_STATUS_INVALID_SCRIPT)); + break; + } + + csi_object_free (ctx, obj); + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +_translate_execute (csi_t *ctx, csi_object_t *obj) +{ + struct _translate_closure *closure = ctx->scanner.closure; + + if (0) { + fprintf (stderr, "exec "); + fprintf_obj (stderr, ctx, obj); + } + + switch (csi_object_get_type (obj)) { + case CSI_OBJECT_TYPE_NAME: + return _translate_name (ctx, obj->datum.name, TRUE, closure); + + case CSI_OBJECT_TYPE_OPERATOR: + return _translate_operator (ctx, obj->datum.op, TRUE, closure); + + case CSI_OBJECT_TYPE_INTEGER: + return _translate_integer (ctx, obj->datum.integer, closure); + + case CSI_OBJECT_TYPE_REAL: + return _translate_real (ctx, obj->datum.real, closure); + + case CSI_OBJECT_TYPE_STRING: + return _translate_string (ctx, obj->datum.string, closure); + + case CSI_OBJECT_TYPE_NULL: + case CSI_OBJECT_TYPE_BOOLEAN: + case CSI_OBJECT_TYPE_MARK: + case CSI_OBJECT_TYPE_ARRAY: + case CSI_OBJECT_TYPE_DICTIONARY: + case CSI_OBJECT_TYPE_FILE: + case CSI_OBJECT_TYPE_MATRIX: + case CSI_OBJECT_TYPE_CONTEXT: + case CSI_OBJECT_TYPE_FONT: + case CSI_OBJECT_TYPE_PATTERN: + case CSI_OBJECT_TYPE_SCALED_FONT: + case CSI_OBJECT_TYPE_SURFACE: + longjmp (ctx->scanner.jump_buffer, _csi_error (CSI_STATUS_INVALID_SCRIPT)); + break; + } + + return CSI_STATUS_SUCCESS; +} + +static csi_status_t +build_opcodes (csi_t *ctx, csi_dictionary_t **out) +{ + csi_object_t obj; + csi_dictionary_t *dict; + const csi_operator_def_t *def; + csi_status_t status; + int opcode = OPCODE << 8; + + status = csi_dictionary_new (ctx, &obj); + if (_csi_unlikely (status)) + return status; + + dict = obj.datum.dictionary; + + csi_integer_new (&obj, opcode++); + status = csi_dictionary_put (ctx, dict, 0, &obj); + if (_csi_unlikely (status)) + goto FAIL; + + for (def = _csi_operators (); def->name != NULL; def++) { + csi_object_t name; + csi_dictionary_entry_t *entry; + int code; + + entry = _csi_hash_table_lookup (&dict->hash_table, + (csi_hash_entry_t *) &def->op); + if (entry == NULL) { + code = opcode++; + csi_integer_new (&obj, code); + status = csi_dictionary_put (ctx, dict, (csi_name_t) def->op, &obj); + if (_csi_unlikely (status)) + goto FAIL; + } else { + code = entry->value.datum.integer; + csi_integer_new (&obj, code); + } + assert (ctx->opcode[code & 0xff] == def->op); + + status = csi_name_new_static (ctx, &name, def->name); + if (_csi_unlikely (status)) + goto FAIL; + + status = csi_dictionary_put (ctx, dict, name.datum.name, &obj); + if (_csi_unlikely (status)) + goto FAIL; + } + + *out = dict; + return CSI_STATUS_SUCCESS; + +FAIL: + csi_dictionary_free (ctx, dict); + return status; +} + +csi_status_t +_csi_translate_file (csi_t *ctx, + csi_file_t *file, + cairo_write_func_t write_func, + void *closure) +{ + csi_status_t status; + struct _translate_closure translator; + + if ((status = setjmp (ctx->scanner.jump_buffer))) + return status; + + status = build_opcodes (ctx, &translator.opcodes); + if (_csi_unlikely (status)) + return status; + + translator.write_func = write_func; + translator.closure = closure; + ctx->scanner.closure = &translator; + + ctx->scanner.bind = 1; + ctx->scanner.push = _translate_push; + ctx->scanner.execute = _translate_execute; + + _scan_file (ctx, file); + + ctx->scanner.bind = 0; + ctx->scanner.push = _scan_push; + ctx->scanner.execute = _scan_execute; + + csi_dictionary_free (ctx, translator.opcodes); + + return CSI_STATUS_SUCCESS; +} diff --git a/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-stack.c b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-stack.c new file mode 100644 index 0000000000..ff1e91ade0 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/cairo-script-stack.c @@ -0,0 +1,198 @@ +/* + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + */ + +#include "config.h" + +#include "cairo-script-private.h" + +#include /* INT_MAX */ +#include + +csi_status_t +_csi_stack_init (csi_t *ctx, csi_stack_t *stack, csi_integer_t size) +{ + csi_status_t status = CSI_STATUS_SUCCESS; + + stack->len = 0; + stack->size = size; + /* assert ((unsigned) size < INT_MAX / sizeof (csi_object_t)); */ + stack->objects = _csi_alloc (ctx, size * sizeof (csi_object_t)); + if (_csi_unlikely (stack->objects == NULL)) + status = _csi_error (CSI_STATUS_NO_MEMORY); + + return status; +} + +void +_csi_stack_fini (csi_t *ctx, csi_stack_t *stack) +{ + csi_integer_t n; + + for (n = 0; n < stack->len; n++) + csi_object_free (ctx, &stack->objects[n]); + + _csi_free (ctx, stack->objects); +} + +csi_status_t +_csi_stack_roll (csi_t *ctx, + csi_stack_t *stack, + csi_integer_t mod, csi_integer_t n) +{ + csi_object_t stack_copy[128]; + csi_object_t *copy; + csi_integer_t last, i, len; + + switch (mod) { /* special cases */ + case 1: + last = stack->len - 1; + stack_copy[0] = stack->objects[last]; + for (i = last; --n; i--) + stack->objects[i] = stack->objects[i-1]; + stack->objects[i] = stack_copy[0]; + return CSI_STATUS_SUCCESS; + case -1: + last = stack->len - 1; + stack_copy[0] = stack->objects[i = last - n + 1]; + for (; --n; i++) + stack->objects[i] = stack->objects[i+1]; + stack->objects[i] = stack_copy[0]; + return CSI_STATUS_SUCCESS; + } + + /* fall back to a copy */ + if (n > ARRAY_LENGTH (stack_copy)) { + if (_csi_unlikely ((unsigned) n > INT_MAX / sizeof (csi_object_t))) + return _csi_error (CSI_STATUS_NO_MEMORY); + copy = _csi_alloc (ctx, n * sizeof (csi_object_t)); + if (copy == NULL) + return _csi_error (CSI_STATUS_NO_MEMORY); + } else + copy = stack_copy; + + i = stack->len - n; + memcpy (copy, stack->objects + i, n * sizeof (csi_object_t)); + mod = -mod; + if (mod < 0) + mod += n; + last = mod; + for (len = n; n--; i++) { + stack->objects[i] = copy[last]; + if (++last == len) + last = 0; + } + + if (copy != stack_copy) + _csi_free (ctx, copy); + + return CSI_STATUS_SUCCESS; +} + +csi_status_t +_csi_stack_grow (csi_t *ctx, csi_stack_t *stack, csi_integer_t cnt) +{ + csi_integer_t newsize; + csi_object_t *newstack; + + if (_csi_likely (cnt <= stack->size)) + return CSI_STATUS_SUCCESS; + if (_csi_unlikely ((unsigned) cnt >= INT_MAX / sizeof (csi_object_t))) + return _csi_error (CSI_STATUS_NO_MEMORY); + + newsize = stack->size; + do { + newsize *= 2; + } while (newsize <= cnt); + + newstack = _csi_realloc (ctx, + stack->objects, + newsize * sizeof (csi_object_t)); + if (_csi_unlikely (newstack == NULL)) + return _csi_error (CSI_STATUS_NO_MEMORY); + + stack->objects = newstack; + stack->size = newsize; + + return CSI_STATUS_SUCCESS; +} + +csi_status_t +_csi_stack_push_internal (csi_t *ctx, csi_stack_t *stack, + const csi_object_t *obj) +{ + csi_status_t status; + + status = _csi_stack_grow (ctx, stack, stack->size + 1); + if (_csi_unlikely (status)) + return status; + + stack->objects[stack->len++] = *obj; + return CSI_STATUS_SUCCESS; +} + +csi_object_t * +_csi_stack_peek (csi_stack_t *stack, csi_integer_t i) +{ + if (_csi_unlikely (stack->len < i)) + return NULL; + + return &stack->objects[stack->len - i -1]; +} + +void +_csi_stack_pop (csi_t *ctx, csi_stack_t *stack, csi_integer_t count) +{ + if (_csi_unlikely (stack->len < count)) + count = stack->len; + + while (count--) + csi_object_free (ctx, &stack->objects[--stack->len]); +} + +csi_status_t +_csi_stack_exch (csi_stack_t *stack) +{ + csi_object_t tmp; + csi_integer_t n; + + if (_csi_unlikely (stack->len < 2)) + return _csi_error (CSI_STATUS_INVALID_SCRIPT); + + n = stack->len - 1; + tmp = stack->objects[n]; + stack->objects[n] = stack->objects[n - 1]; + stack->objects[n - 1] = tmp; + + return CSI_STATUS_SUCCESS; +} diff --git a/local/recipes/libs/cairo/source/util/cairo-script/csi-bind.c b/local/recipes/libs/cairo/source/util/cairo-script/csi-bind.c new file mode 100644 index 0000000000..b2a6d69f8f --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/csi-bind.c @@ -0,0 +1,112 @@ +/* + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + */ + +#include "config.h" + +#include "cairo.h" +#include "cairo-script-interpreter.h" + +#include +#include + +static cairo_status_t +write_func (void *closure, + const unsigned char *data, + unsigned int length) +{ + if (fwrite (data, length, 1, closure) != 1) + return CAIRO_STATUS_WRITE_ERROR; + + return CAIRO_STATUS_SUCCESS; +} + +int +main (int argc, char **argv) +{ + FILE *in = stdin, *out = stdout; + cairo_status_t status; + int i; + + if (argc >= 3) { + if (strcmp (argv[argc-1], "-")) { + out = fopen (argv[argc-1], "w"); + if (out == NULL) { + fprintf (stderr, "Failed to open output '%s'\n", argv[argc-1]); + return 1; + } + } + } + + if (argc > 2) { + for (i = 1; i < argc - 1; i++) { + in = fopen (argv[i], "r"); + if (in == NULL) { + fprintf (stderr, "Failed to open input '%s'\n", argv[i]); + return 1; + } + + status = cairo_script_interpreter_translate_stream (in, write_func, out); + fclose (in); + + if (status) + break; + } + } else { + if (argc > 1) { + if (strcmp (argv[1], "-")) { + in = fopen (argv[1], "r"); + if (in == NULL) { + fprintf (stderr, "Failed to open input '%s'\n", argv[1]); + return 1; + } + } + } + + status = cairo_script_interpreter_translate_stream (in, write_func, out); + + if (in != stdin) + fclose (in); + } + + if (out != stdout) + fclose (out); + + if (status) { + fprintf (stderr, "Translation failed: %s\n", + cairo_status_to_string (status)); + return status; + } + + return status; +} diff --git a/local/recipes/libs/cairo/source/util/cairo-script/csi-exec.c b/local/recipes/libs/cairo/source/util/cairo-script/csi-exec.c new file mode 100644 index 0000000000..175328c96f --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/csi-exec.c @@ -0,0 +1,77 @@ +/* + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + */ + +#include "config.h" + +#include "cairo.h" +#include "cairo-script-interpreter.h" + +#include +#include + +static cairo_surface_t * +_surface_create (void *closure, + cairo_content_t content, + double width, double height, + long uid) +{ + return cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height); +} + +int +main (int argc, char **argv) +{ + const cairo_script_interpreter_hooks_t hooks = { + .surface_create = _surface_create + }; + cairo_script_interpreter_t *csi; + int i; + + for (i = 1; i < argc; i++) { + int status, line; + + csi = cairo_script_interpreter_create (); + cairo_script_interpreter_install_hooks (csi, &hooks); + cairo_script_interpreter_run (csi, argv[i]); + line = cairo_script_interpreter_get_line_number (csi); + status = cairo_script_interpreter_destroy (csi); + if (status) { + fprintf (stderr, "Error during replay of '%s', line %d: %d\n", + argv[i], line, status); + return 1; + } + } + + return 0; +} diff --git a/local/recipes/libs/cairo/source/util/cairo-script/csi-replay.c b/local/recipes/libs/cairo/source/util/cairo-script/csi-replay.c new file mode 100644 index 0000000000..4460d64143 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/csi-replay.c @@ -0,0 +1,337 @@ +/* + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + */ + +#include "config.h" + +#include "cairo.h" +#include "cairo-script-interpreter.h" + +#include +#include +#include + +#if defined(CAIRO_HAS_XLIB_SURFACE) || defined(CAIRO_HAS_XLIB_XRENDER_SURFACE) +static const cairo_user_data_key_t _key; +#endif + +#define SINGLE_SURFACE 1 + +#if SINGLE_SURFACE +static cairo_surface_t * +_similar_surface_create (void *closure, + cairo_content_t content, + double width, double height, + long uid) +{ + return cairo_surface_create_similar (closure, content, width, height); +} + +static struct list { + struct list *next; + cairo_t *context; + cairo_surface_t *surface; +} *list; + +static cairo_t * +_context_create (void *closure, cairo_surface_t *surface) +{ + cairo_t *cr = cairo_create (surface); + struct list *l = malloc (sizeof (*l)); + l->next = list; + l->context = cr; + l->surface = cairo_surface_reference (surface); + list = l; + return cr; +} + +static void +_context_destroy (void *closure, void *ptr) +{ + struct list *l, **prev = &list; + while ((l = *prev) != NULL) { + if (l->context == ptr) { + if (cairo_surface_status (l->surface) == CAIRO_STATUS_SUCCESS) { + cairo_t *cr = cairo_create (closure); + cairo_set_source_surface (cr, l->surface, 0, 0); + cairo_paint (cr); + cairo_destroy (cr); + } + + cairo_surface_destroy (l->surface); + *prev = l->next; + free (l); + return; + } + prev = &l->next; + } +} +#endif + +#if CAIRO_HAS_XLIB_SURFACE +#include +static Display * +_get_display (void) +{ + static Display *dpy; + + if (dpy != NULL) + return dpy; + + dpy = XOpenDisplay (NULL); + if (dpy == NULL) { + fprintf (stderr, "Failed to open display.\n"); + exit (1); + } + + return dpy; +} + +static void +_destroy_window (void *closure) +{ + XFlush (_get_display ()); + XDestroyWindow (_get_display(), (Window) closure); +} + +static cairo_surface_t * +_xlib_surface_create (void *closure, + cairo_content_t content, + double width, double height, + long uid) +{ + Display *dpy; + XSetWindowAttributes attr; + Visual *visual; + int depth; + Window w; + cairo_surface_t *surface; + + dpy = _get_display (); + + visual = DefaultVisual (dpy, DefaultScreen (dpy)); + depth = DefaultDepth (dpy, DefaultScreen (dpy)); + attr.override_redirect = True; + w = XCreateWindow (dpy, DefaultRootWindow (dpy), 0, 0, + width <= 0 ? 1 : width, + height <= 0 ? 1 : height, + 0, depth, + InputOutput, visual, CWOverrideRedirect, &attr); + XMapWindow (dpy, w); + + surface = cairo_xlib_surface_create (dpy, w, visual, width, height); + cairo_surface_set_user_data (surface, &_key, (void *) w, _destroy_window); + + return surface; +} + +#if CAIRO_HAS_XLIB_XRENDER_SURFACE +#include + +static void +_destroy_pixmap (void *closure) +{ + XFreePixmap (_get_display(), (Pixmap) closure); +} + +static cairo_surface_t * +_xrender_surface_create (void *closure, + cairo_content_t content, + double width, double height, + long uid) +{ + Display *dpy; + Pixmap pixmap; + XRenderPictFormat *xrender_format; + cairo_surface_t *surface; + + dpy = _get_display (); + + content = CAIRO_CONTENT_COLOR_ALPHA; + + switch (content) { + case CAIRO_CONTENT_COLOR_ALPHA: + xrender_format = XRenderFindStandardFormat (dpy, PictStandardARGB32); + break; + case CAIRO_CONTENT_COLOR: + xrender_format = XRenderFindStandardFormat (dpy, PictStandardRGB24); + break; + case CAIRO_CONTENT_ALPHA: + default: + xrender_format = XRenderFindStandardFormat (dpy, PictStandardA8); + } + + pixmap = XCreatePixmap (dpy, DefaultRootWindow (dpy), + width, height, xrender_format->depth); + + surface = cairo_xlib_surface_create_with_xrender_format (dpy, pixmap, + DefaultScreenOfDisplay (dpy), + xrender_format, + width, height); + cairo_surface_set_user_data (surface, &_key, + (void *) pixmap, _destroy_pixmap); + + return surface; +} +#endif +#endif + +#if CAIRO_HAS_PDF_SURFACE +#include +static cairo_surface_t * +_pdf_surface_create (void *closure, + cairo_content_t content, + double width, double height, + long uid) +{ + return cairo_pdf_surface_create_for_stream (NULL, NULL, width, height); +} +#endif + +#if CAIRO_HAS_PS_SURFACE +#include +static cairo_surface_t * +_ps_surface_create (void *closure, + cairo_content_t content, + double width, double height, + long uid) +{ + return cairo_ps_surface_create_for_stream (NULL, NULL, width, height); +} +#endif + +#if CAIRO_HAS_SVG_SURFACE +#include +static cairo_surface_t * +_svg_surface_create (void *closure, + cairo_content_t content, + double width, double height, + long uid) +{ + return cairo_svg_surface_create_for_stream (NULL, NULL, width, height); +} +#endif + +static cairo_surface_t * +_image_surface_create (void *closure, + cairo_content_t content, + double width, double height, + long uid) +{ + return cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height); +} + +int +main (int argc, char **argv) +{ + cairo_script_interpreter_t *csi; + cairo_script_interpreter_hooks_t hooks = { +#if SINGLE_SURFACE + .surface_create = _similar_surface_create, + .context_create = _context_create, + .context_destroy = _context_destroy +#elif CAIRO_HAS_XLIB_XRENDER_SURFACE + .surface_create = _xrender_surface_create +#elif CAIRO_HAS_XLIB_SURFACE + .surface_create = _xlib_surface_create +#elif CAIRO_PDF_SURFACE + .surface_create = _pdf_surface_create +#elif CAIRO_PS_SURFACE + .surface_create = _ps_surface_create +#elif CAIRO_SVG_SURFACE + .surface_create = _svg_surface_create +#else + .surface_create = _image_surface_create +#endif + }; + int i; + const struct backends { + const char *name; + csi_surface_create_func_t create; + } backends[] = { + { "--image", _image_surface_create }, +#if CAIRO_HAS_XLIB_XRENDER_SURFACE + { "--xrender", _xrender_surface_create }, +#endif +#if CAIRO_HAS_XLIB_SURFACE + { "--xlib", _xlib_surface_create }, +#endif +#if CAIRO_HAS_PDF_SURFACE + { "--pdf", _pdf_surface_create }, +#endif +#if CAIRO_HAS_PS_SURFACE + { "--ps", _ps_surface_create }, +#endif +#if CAIRO_HAS_SVG_SURFACE + { "--svg", _svg_surface_create }, +#endif + { NULL, NULL } + }; + +#if SINGLE_SURFACE + hooks.closure = backends[0].create (NULL, + CAIRO_CONTENT_COLOR_ALPHA, + 512, 512, + 0); +#endif + + + csi = cairo_script_interpreter_create (); + cairo_script_interpreter_install_hooks (csi, &hooks); + + for (i = 1; i < argc; i++) { + const struct backends *b; + + for (b = backends; b->name != NULL; b++) { + if (strcmp (b->name, argv[i]) == 0) { +#if SINGLE_SURFACE + cairo_surface_destroy (hooks.closure); + hooks.closure = b->create (NULL, + CAIRO_CONTENT_COLOR_ALPHA, + 512, 512, + 0); +#else + hooks.surface_create = b->create; +#endif + cairo_script_interpreter_install_hooks (csi, &hooks); + break; + } + } + + if (b->name == NULL) + cairo_script_interpreter_run (csi, argv[i]); + } + cairo_surface_destroy (hooks.closure); + + return cairo_script_interpreter_destroy (csi); +} diff --git a/local/recipes/libs/cairo/source/util/cairo-script/csi-trace.c b/local/recipes/libs/cairo/source/util/cairo-script/csi-trace.c new file mode 100644 index 0000000000..e93b28cf0a --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/csi-trace.c @@ -0,0 +1,84 @@ +/* + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson + */ + +#include "config.h" + +#include "cairo-script.h" +#include "cairo-script-interpreter.h" + +#include +#include +#include +#include + +static cairo_surface_t * +_script_surface_create (void *closure, + cairo_content_t content, + double width, double height, + long uid) +{ + return cairo_script_surface_create (closure, content, width, height); +} + +int +main (int argc, char **argv) +{ + cairo_script_interpreter_t *csi; + cairo_script_interpreter_hooks_t hooks = { + .surface_create = _script_surface_create, + }; + int i; + char buf[4096]; + + csi = cairo_script_interpreter_create (); + + for (i = 1; i < argc; i++) { + if (strcmp (argv[i], "--version") == 0) { + printf ("%s: version %s\n", argv[0], __DATE__); + exit (0); + } else if (strcmp (argv[i], "--help") == 0) { + printf ("usage: %s < in > out\n", argv[0]); + exit (0); + } + + snprintf (buf, sizeof (buf), "%s.trace", basename (argv[i])); + cairo_device_destroy (hooks.closure); + hooks.closure = cairo_script_create (buf); + cairo_script_interpreter_install_hooks (csi, &hooks); + cairo_script_interpreter_run (csi, argv[i]); + } + cairo_device_destroy (hooks.closure); + + return cairo_script_interpreter_destroy (csi); +} diff --git a/local/recipes/libs/cairo/source/util/cairo-script/examples/dragon.cs b/local/recipes/libs/cairo/source/util/cairo-script/examples/dragon.cs new file mode 100644 index 0000000000..1060ca6993 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/examples/dragon.cs @@ -0,0 +1,48 @@ +%!CairoScript +/pot { % n -- n + 1 sub + dup -1 bitshift or + dup -2 bitshift or + dup -4 bitshift or + dup -8 bitshift or + dup -16 bitshift or + 1 add +} bind def + +/direction { % i -- bool + dup 2 lt { pop true } { + dup 1 add dup pot dup 3 -1 roll eq { pop pop true } { + 2 div 1 sub 2 mul exch sub direction not + } ifelse + } ifelse +} bind def + +/path { % cr dx dy -- cr + 0 1 2048 { + 4 1 roll 3 copy L pop 4 -1 roll direction { + exch neg + } { + neg exch + } ifelse + } for + pop pop +} bind def + +dict + /width 512 set + /height 512 set + surface context + +1 g set-source paint + +//LINE_CAP_ROUND set-line-cap +//LINE_JOIN_ROUND set-line-join +4 set-line-width + +256 256 m 12 0 path 0 0 0 rgb set-source stroke +256 256 m -12 0 path 1 0 0 rgb set-source stroke +256 256 m 0 12 path 0 1 0 rgb set-source stroke +256 256 m 0 -12 path 0 0 1 rgb set-source stroke + +/target get (out.png) write-to-png pop +pop diff --git a/local/recipes/libs/cairo/source/util/cairo-script/examples/hilbert.cs b/local/recipes/libs/cairo/source/util/cairo-script/examples/hilbert.cs new file mode 100644 index 0000000000..4278bf74ca --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/examples/hilbert.cs @@ -0,0 +1,51 @@ +%!CairoScript + +/hA { % cr dist lvl *hA* cr dist + dup not { pop } { + 1 sub + 3 copy hB 0 exch L pop + 3 copy hA 0 L pop + 3 copy hA neg 0 exch L pop + hC + } ifelse +} bind def + +/hB { % cr dist lvl *hB* cr dist + dup not { pop } { + 1 sub + 3 copy hA 0 L pop + 3 copy hB 0 exch L pop + 3 copy hB neg 0 L pop + hD + } ifelse +} bind def + +/hC { % cr dist lvl *hC* cr dist + dup not { pop } { + 1 sub + 3 copy hD neg 0 L pop + 3 copy hC neg 0 exch L pop + 3 copy hC 0 L pop + hA + } ifelse +} bind def + +/hD { % cr dist lvl *hD* cr dist + dup not { pop } { + 1 sub + 3 copy hC neg 0 exch L pop + 3 copy hD neg 0 L pop + 3 copy hD 0 exch L pop + hB + } ifelse +} bind def + +dict + /width 1024 set + /height 1024 set + surface context + +2 2 m 4 10 hA pop 1 g set-source stroke + +/target get (out.png) write-to-png pop +pop diff --git a/local/recipes/libs/cairo/source/util/cairo-script/examples/infinichess.cs b/local/recipes/libs/cairo/source/util/cairo-script/examples/infinichess.cs new file mode 100644 index 0000000000..f82b102782 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/examples/infinichess.cs @@ -0,0 +1,29 @@ +/xdef { exch def } def +/-rot { 3 1 roll } def +/rot { 3 -1 roll } def +/2dup { 2 copy } def + +/SIZE 600. def +<< /width SIZE /height SIZE >> surface context +1 1 1 set-source-rgb paint +0 0 0 set-source-rgb +EVEN_ODD set-fill-rule +SIZE SIZE scale + +0.5 0 translate + +save +1 1 scale +/n 90 def +n neg 1 n { + /x xdef + 0 0 m + x 1 l + x 0.5 add 1 l + 0 0 l +} for +restore +fill + +/target get (out.png) write-to-png pop +pop diff --git a/local/recipes/libs/cairo/source/util/cairo-script/examples/interference.cs b/local/recipes/libs/cairo/source/util/cairo-script/examples/interference.cs new file mode 100644 index 0000000000..6d2ee2200f --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/examples/interference.cs @@ -0,0 +1,46 @@ +/rot { 3 -1 roll } def +/2dup { 2 copy } def + +/circle { % context radius -- context + 2dup 0 m pop + 0 0 rot 0 math.2pi arc h +} def + +/circles { % context #circles -- context + 1 1 rot { circle } for +} def + +/SIDE 600. def +/SIZE 600. def +<< /width SIZE /height SIZE >> surface context +1 1 1 set-source-rgb paint +0 0 0 set-source-rgb +//EVEN_ODD set-fill-rule + +/r 4 def +/n SIDE 1.5 mul r div integer def + +SIZE SIDE div dup scale + +save + 302 200 translate + r dup scale + n circles +restore + +save + 100 300 translate + r dup scale + n circles +restore + +save + 500 400 translate + r dup scale + n circles +restore + +fill + +/target get (out.png) write-to-png pop +pop diff --git a/local/recipes/libs/cairo/source/util/cairo-script/examples/pythagoras-tree.cs b/local/recipes/libs/cairo/source/util/cairo-script/examples/pythagoras-tree.cs new file mode 100644 index 0000000000..96b4b39bce --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/examples/pythagoras-tree.cs @@ -0,0 +1,53 @@ +%!CairoScript + +/pi4 0.785398163 def +/sqrt2 1.414213562 def + +/R { % cr size *R* cr + dup 1 lt { pop } { + exch /current-point get % size cr x y + 4 2 roll % x y size cr + + % draw a rectangle in relative co-ordinates + 1 index 2 div neg dup exch M + 1 index 0 L + 0 2 index L + 1 index neg 0 L + h + + save + 1 index dup 2 div neg exch translate + 4 2 roll 3 copy % size cr x y cr x y + m + //pi4 rotate + pop 4 2 roll % x y size cr + 1 index //sqrt2 div + R + restore + + save + 1 index dup 2 div exch translate + 4 2 roll 3 copy % size cr x y cr x y + m + //pi4 neg rotate + pop 4 2 roll % x y size cr + 1 index //sqrt2 div + R + restore + + 4 1 roll pop pop pop + } ifelse +} bind def + +dict + /width 1024 set + /height 512 set + surface context + +1 1 1 set-source-rgb paint + +0 512 translate 1 -1 scale +512 64 m 128. R 0 0 0 set-source-rgb fill + +/target get (out.png) write-to-png pop +pop diff --git a/local/recipes/libs/cairo/source/util/cairo-script/examples/sierpinski.cs b/local/recipes/libs/cairo/source/util/cairo-script/examples/sierpinski.cs new file mode 100644 index 0000000000..6f959083b4 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/examples/sierpinski.cs @@ -0,0 +1,37 @@ +%!CairoScript + +/1sqrt3 0.577359269 def + +/T { % cr size -- cr + exch % size cr + 0 0 m 1 index 0 l 1 index dup 2 div exch //1sqrt3 mul l h + + exch 2 div + dup 4 ge { + exch % size/2 cr + + 1 index T + save 1 index 0 translate 1 index T restore + save 1 index dup 2 div exch //1sqrt3 mul translate 1 index T restore + + exch + } if + pop +} bind def + +dict + /width 512 set + /height 300 set + surface context + +1 1 1 set-source-rgb paint + +.5 set-line-width + +0 300 translate +1 -1 scale + +512 T 0 0 0 set-source-rgb stroke + +/target get (out.png) write-to-png pop +pop diff --git a/local/recipes/libs/cairo/source/util/cairo-script/examples/wedgeAnnulus_crop_ybRings.cs b/local/recipes/libs/cairo/source/util/cairo-script/examples/wedgeAnnulus_crop_ybRings.cs new file mode 100644 index 0000000000..5aeb97f6ec --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/examples/wedgeAnnulus_crop_ybRings.cs @@ -0,0 +1,30 @@ +/SIDE 600 def + +<< /width SIDE /height SIDE >> surface context + +1 1 1 rgb set-source +paint + +SIDE dup scale +0.5 0.5 translate +0.5 -0.5 scale + +/theta math.pi 10 div def + +10 { + N + 0 0 1.0 0 //theta arc + 0 0 0.2 //theta 0 arc- + h + //theta rotate + //theta rotate +} repeat + +0 0 0.2 0 0 1 radial + 0.0 1 1 0 1 add-color-stop + 1.0 0 0 1 1 add-color-stop +set-source +fill + +/target get (out.png) write-to-png pop +pop diff --git a/local/recipes/libs/cairo/source/util/cairo-script/examples/world-map.cs b/local/recipes/libs/cairo/source/util/cairo-script/examples/world-map.cs new file mode 100644 index 0000000000..54d9a8f319 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/examples/world-map.cs @@ -0,0 +1,209 @@ +%!CairoScript +% The data for this test case was provided by Gary Nicholson +% who originally created an interactive SVG map +% of the world as can be seen here: +% +% http://www.wherearewe.co.nz/svg.html +% +% The data is used here by permission from Gary given on 2006-11-08: +% +% Thanks for asking, I don't need any attribution if you are +% only using the vectors and not the entire map with +% interactivity etc. So feel free to do what you wish with +% the data. + +/N { + 2 index + .75 .75 .75 set-source-rgb fill+ + .5 .5 .5 set-source-rgb stroke + pop + m +} bind def + +% simpler if these had been expressed in relative coords... +/H { + exch /current-point get exch pop % x cr y + 3 -1 roll exch l +} bind def + +/V { + exch /current-point get pop % y cr x + 3 -1 roll l +} bind def + +dict + /width 800 set + /height 400 set + surface context + +.68 .85 .90 set-source-rgb paint +.2 set-line-width + +413.519 90.071 N .136 -.348 L -.31 -.204 L -.017 -.327 L .213 -.322 L .245 -.147 L .142 -.08 L .225 .072 L .062 .301 L .41 .312 L .466 .096 L -.044 .288 L -.248 .144 L .074 .353 L -.145 -.063 L -.568 -.011 L -.642 -.063 L +421.683 94.397 N .193 .336 L -.266 .274 L .214 .288 L -.09 .192 L .622 .062 L .008 .144 L .55 .242 L .579 -.332 L .215 .117 L -.029 .171 L -.126 .309 L .112 .212 L -.038 .192 L -.315 -.051 L -.176 -.162 L -.283 .091 L -.081 .273 L .244 .131 L -.228 .415 L -.244 -.333 L -.469 .05 L -.071 .122 L -.216 .03 L -.23 -.142 L -.143 -.354 L -.371 .081 L .019 .333 L -.425 .384 L -.018 .535 L -.285 .151 L -.385 -.312 L .098 -.182 L -.311 -.071 L -.534 -.363 L -.016 -.415 L -.777 .404 L .103 .212 L -.349 .432 L -.275 .16 L -.629 -.168 L -.627 .204 L -.599 -.062 L -.102 -.424 L -.312 -.806 L -.616 .147 L -.854 .668 L -.369 -.111 L .238 -.226 L .013 -.322 L -.08 -.137 L .089 -.294 L .718 -.418 L -.038 -.315 L .575 -.24 L .012 -.076 L .528 -.494 L .173 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.744 L .017 .282 L -.437 1.555 L -.04 .354 L .249 .676 L .769 1.11 L .212 .563 L .278 .973 L .397 2.144 L .272 .182 L 1.047 -.006 L .107 .056 L .212 .14 L .161 .154 L -.093 .636 L -.541 1.457 L -.36 .256 L -1.346 .53 L -.819 .372 L -.204 .312 L .25 .817 L -.421 .722 L -.007 .579 L .113 .437 L .34 .449 L .03 .226 L -.273 .369 L -.161 .382 L .114 .507 L .53 .477 L .011 .227 L -.152 .311 L -.333 .017 L -.791 .089 L -.329 .835 L -.464 .835 L -.608 .694 L -.282 .439 L -.823 1.839 L .167 1.466 L .054 .762 L -.124 .185 L -.492 .271 L -.292 .34 L -.388 1.201 L -.156 .961 L .285 .633 L .408 1.154 L .784 2.816 L .055 .69 L -.075 .41 L -1.083 1.854 L -.319 .595 L .088 .409 L .189 1.06 L -.078 .325 L -1.334 1.11 L -.231 .312 L -.142 1.075 L .014 1.16 L .249 1.103 L .437 .932 L -.202 .143 L -.951 .529 L -.126 .17 L -.053 .312 L -.511 2.427 L -.316 .541 L -.1 .37 L .123 1.835 L .231 .867 L .012 .427 L -.596 .317 L -.172 .172 L -.106 .271 L .094 1.226 L .125 .128 L .555 .111 L .088 .655 L -.191 1.458 L .252 .585 L .26 .185 L .789 .11 L .302 .17 L -.007 .186 L -.245 .202 L -.322 .13 L -.726 .033 L -.757 .146 L .176 .171 L .586 .298 L .552 .385 L .017 .216 L -.767 .794 L -.059 1.094 L .158 1.035 L -.216 .896 L -.212 .434 L -.226 .262 L -.598 .161 L -.28 .219 L -.249 .781 L .446 .648 L -.069 .188 L -.296 1.218 L -.307 .263 L -1.729 1.01 L -.271 .292 L -.037 .45 L .28 1.309 L .508 1.123 L .218 .043 L .961 -.283 L .654 -.121 L .187 .248 L .231 2.285 L .778 .568 L .669 .041 L 1.41 -.052 L 2.827 .132 L .841 .217 L 1.385 .36 L .286 .039 L h 236.642 296.773 m -.394 -.113 L -.43 -.028 L -.21 -.171 L -.133 -.229 L .21 -.457 L .15 -.657 L -.087 -.514 L .011 -.414 L .364 -.728 L .817 -.116 L .36 .327 L .044 .328 L -.688 .443 L -.146 .229 L .493 .771 L -.194 1.058 L -.167 .271 L h 238.177 317.937 m -.445 -.177 L .083 -.842 L -.849 .075 L -.073 -.368 L .218 -.354 L .823 .102 L .508 -.207 L .205 .103 L .054 .812 L -.267 .34 L -.257 .518 L h 247.801 322.062 m -1.033 .102 L -.467 -.118 L -.55 -.237 L -.42 .001 L -.481 .104 L -.935 .226 L -.496 .03 L .125 -.343 L .202 -.312 L -.104 -.312 L .906 -.15 L 1.434 .058 L .433 .323 L .706 -.007 L -.622 -.689 L -.307 -.163 L -.56 -.117 L -.178 -.089 L -.188 .03 L -.338 -.341 L -.229 -.4 L 1.611 -.581 L -.044 -.296 L -.165 -.147 L -1.819 .285 L -.292 -.222 L .263 -.474 L .146 -.163 L 1.074 -.52 L .868 -.637 L .414 .28 L 1.153 .062 L -.008 1.144 L -.098 3.675 L +456.133 239.67 N .187 .154 L .163 .027 L .154 .169 L .264 .097 L -.103 .227 L .267 .451 L .43 .478 L .469 .604 L .246 .96 L .377 .662 L .563 .491 L .57 .321 L .533 .223 L .552 .266 L .106 .169 L -.051 .537 L .109 .211 L .201 .098 L .78 -.019 L .127 .239 L -.032 .565 L .163 .564 L .524 .873 L .352 .153 L .938 .136 L .549 .167 L .479 .35 L .306 .451 L .186 .098 L -.317 .411 L -.388 .327 L -.507 .243 L -.747 .075 L -.304 .115 L -.7 .823 L -.586 .583 L -.362 .229 L -.747 .357 L -.388 .355 L -.107 .636 L -.222 .666 L -.247 .241 L -.634 .357 L -.98 .33 L -.249 .214 L -.217 .708 L -.345 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L .334 .281 L .269 .593 L .08 .028 L .176 -.015 L .402 -.354 L .319 .042 L .302 .254 L .538 .789 L .205 .396 L -.13 .254 L -.308 .41 L -.116 .424 L .091 .466 L .171 .396 L .825 -.821 L .369 -.156 L .609 -.156 L .995 -.454 L .224 -.028 L .367 .069 L .764 .38 L .907 .436 L .462 .098 L 1.117 .167 L 1.118 .083 L .464 -.058 L .48 -.029 L .577 -.171 L .416 -.016 L 1.131 .351 L .731 .408 L .762 .479 L .586 .437 L 1.595 1.395 L .742 .662 L .821 .605 L .41 .338 L .477 .196 L .734 .168 L 1.247 .097 L .912 .04 L .445 .197 L .265 .465 L .087 .607 L .592 2.004 L .268 1.143 L .062 .988 L -.076 .579 L -.179 .904 L -.243 .848 L -.559 1.301 L -.518 .849 L -1.347 1.175 L -1.388 1.288 L -.44 .198 L -.354 .043 L -.39 .637 L -.094 .396 L -.012 .353 L -.504 1.074 L -.6 .976 L -.8 1.104 L -.266 .212 L -.194 .015 L -.079 -.423 L -.278 -.296 L -.367 -.084 L -.064 .79 L -.538 1.64 L -.049 .734 L -.077 .607 L .318 2.738 L .078 .988 L -.577 2.543 L -.039 .663 L .14 .649 L .043 .085 L -.759 .495 L -.404 .51 L 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L 1.141 .068 L .117 .197 L 731 245.42 l -.273 .565 L .309 .424 L .879 .479 L .22 .564 L .469 1.342 L .211 .748 L .112 .396 L .252 .311 L .771 .352 L -.021 -.127 L -.141 -.777 L .913 .507 L .567 .154 L .184 .127 L .136 .296 L .106 1.752 L .884 .762 L .573 .323 L .604 .154 L .287 .296 L .244 .579 L .229 .424 L .545 .168 L .176 .297 L .007 .269 L .19 .536 L .106 .113 L .506 .126 L .156 .112 L .162 .354 L .366 1.327 L .026 .876 L .013 .862 L -.132 .41 L -.181 .325 L .778 1.271 L .223 .48 L .181 .833 L .034 .749 L -.293 .708 L -.353 1.668 L -.585 1.755 L .137 .791 L -.065 .806 L -.306 .778 L -.661 .977 L -.203 .665 L -.598 .821 L -.45 .185 L -.465 .1 L -.423 .468 L -.466 .68 L -.328 1.527 L -.477 .638 L -.34 .495 L .014 .65 L -.208 .539 L -.331 .312 L -.601 .341 L -.27 .326 L -.3 1.021 L -.169 1.049 L -.079 .937 L .021 .666 L -.283 .64 L -.322 .354 L -.463 .3 L -.754 .101 L -1.158 .087 L -.82 .03 L -.527 .157 L -.516 .299 L -1.529 .94 L -.443 .129 L -.214 .284 L -.346 .071 L -.528 .059 L 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54.187500000000 l +397.450962195204 54.513260839740 l +398.968434987734 55.403189404250 l +401.353548073644 58.351425979321 l +402.406250000000 59.781250000000 l +404.776707744919 58.931315323480 l +404.782327289528 58.928064874395 l +408.035404872648 57.459065914536 l +411.906349970010 56.394239853049 l +409.906250000000 58.843750000000 l +107.893088734820 103.841923410053 l +.0 .0 .8 set-source-rgb fill + +/target get (out.png) write-to-png pop +pop diff --git a/local/recipes/libs/cairo/source/util/cairo-script/meson.build b/local/recipes/libs/cairo/source/util/cairo-script/meson.build new file mode 100644 index 0000000000..60cec2b6e0 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-script/meson.build @@ -0,0 +1,67 @@ +cairoscript_interpreter_sources = [ + 'cairo-script-file.c', + 'cairo-script-hash.c', + 'cairo-script-interpreter.c', + 'cairo-script-objects.c', + 'cairo-script-operators.c', + 'cairo-script-scanner.c', + 'cairo-script-stack.c', +] + +cairoscript_interpreter_headers = [ + 'cairo-script-interpreter.h', +] + +csi_replay_sources = [ + 'csi-replay.c', +] + +csi_exec_sources = [ + 'csi-exec.c', +] + +csi_trace_sources = [ + 'csi-trace.c', +] + +libcairoscript = library('cairo-script-interpreter', + cairoscript_interpreter_sources, + include_directories: [incbase], + dependencies: deps + [libcairo_dep, lzo_dep], + soversion: cairo_version_sonum, + version: cairo_libversion, + c_args: ['-DCAIRO_COMPILATION'], + link_args: extra_link_args, + install: true, +) + +libcairoscript_dep = declare_dependency(link_with: libcairoscript, + include_directories: include_directories('.'), + dependencies: libcairo_dep) + +pkgmod.generate(libcairoscript, + libraries: [libcairo], + description: 'script surface backend for cairo graphics library', + subdirs: [meson.project_name()], +) + +meson.override_dependency('cairo-script-interpreter', libcairoscript_dep) + +csi_replay_exe = executable('csi-replay', csi_replay_sources, + include_directories: [incbase], + dependencies: deps + [libcairo_dep, libcairoscript_dep], +) + +csi_exec_exe = executable('csi-exec', csi_exec_sources, + include_directories: [incbase], + dependencies: deps + [libcairo_dep, libcairoscript_dep], +) + +if feature_conf.get('CAIRO_HAS_SCRIPT_SURFACE', 0) == 1 and conf.get('HAVE_LIBGEN_H', 0) == 1 + csi_trace_exe = executable('csi-trace', csi_trace_sources, + include_directories: [incbase], + dependencies: deps + [libcairo_dep, libcairoscript_dep], + ) +endif + +install_headers(cairoscript_interpreter_headers, subdir: 'cairo') diff --git a/local/recipes/libs/cairo/source/util/cairo-trace/.gitignore b/local/recipes/libs/cairo/source/util/cairo-trace/.gitignore new file mode 100644 index 0000000000..b5f866669d --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-trace/.gitignore @@ -0,0 +1 @@ +cairo-trace diff --git a/local/recipes/libs/cairo/source/util/cairo-trace/COPYING b/local/recipes/libs/cairo/source/util/cairo-trace/COPYING new file mode 100644 index 0000000000..37aeee076f --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-trace/COPYING @@ -0,0 +1,5 @@ +Cairo is free software. + +cairo-trace is released under the terms of the GNU General Public License +(GPL) version 3. Please see COPYING-GPL-3 for the precise terms and +conditions. diff --git a/local/recipes/libs/cairo/source/util/cairo-trace/COPYING-GPL-3 b/local/recipes/libs/cairo/source/util/cairo-trace/COPYING-GPL-3 new file mode 100644 index 0000000000..94a9ed024d --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-trace/COPYING-GPL-3 @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Limitation of Liability. + + IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY +GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE +USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF +DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD +PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF +SUCH DAMAGES. + + 17. Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/local/recipes/libs/cairo/source/util/cairo-trace/cairo-trace.in b/local/recipes/libs/cairo/source/util/cairo-trace/cairo-trace.in new file mode 100755 index 0000000000..ece90d3ebb --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-trace/cairo-trace.in @@ -0,0 +1,136 @@ +#!/bin/sh + +prefix=@prefix@ +exec_prefix=@exec_prefix@ + +nofile= +flush= +nocallers= +nomarkdirty= +compress= + +usage() { +cat << EOF +usage: cairo-trace [--no-file] command +cairo-trace will generate a log of all calls made by command to +cairo. This log will be stored in a file in the local directory +called command.pid.trace. +Whatever else happens is driven by its argument: + --flush - Flush the output trace after every call. + --no-file - Disable the creation of an output file. Outputs to the + terminal instead. + --no-callers - Do not lookup the caller address/symbol/line whilst tracing. + --mark-dirty - Record image data for cairo_mark_dirty() [default] + --no-mark-dirty - Do not record image data for cairo_mark_dirty() + --compress - Compress the output with LZMA + --profile - Combine --no-callers and --no-mark-dirty and --compress + +Environment variables understood by cairo-trace: + CAIRO_TRACE_FLUSH - flush the output after every function call. + CAIRO_TRACE_LINE_INFO - emit line information for most function calls. +EOF +exit +} + +skip=1 +while test $skip -eq 1; do + skip=0 + case $1 in + --flush) + skip=1 + flush=1 + ;; + --no-file) + skip=1 + nofile=1 + ;; + --no-callers) + skip=1 + nocallers=1 + ;; + --mark-dirty) + skip=1 + nomarkdirty= + ;; + --no-mark-dirty) + skip=1 + nomarkdirty=1 + ;; + --compress) + skip=1 + compress=1 + nofile=1 + ;; + --profile) + skip=1 + compress=1 + nomarkdirty=1 + nocallers=1 + nofile=1 + ;; + --version) + echo "cairo-trace, version @CAIRO_VERSION_MAJOR@.@CAIRO_VERSION_MINOR@.@CAIRO_VERSION_MICRO@." + exit + ;; + --help) + usage + ;; + esac + if test $skip -eq 1; then + shift + fi +done + +if test $# -eq 0; then + usage +fi + +CAIRO_TRACE_PROG_NAME="$1" +export CAIRO_TRACE_PROG_NAME + +if test "x$CAIRO_TRACE_SO" = "x"; then + CAIRO_TRACE_SO="" + for lib in @libdir@/cairo/libcairo-trace.@SHLIB_EXT@ @libdir@/cairo/libcairo-trace.@SHLIB_EXT@* @libdir@/cairo/libcairo-trace.*.@SHLIB_EXT@ ; do + if test -h "$lib" -o -f "$lib"; then + CAIRO_TRACE_SO="$lib" + break + fi + done +fi +if test "x$CAIRO_TRACE_SO" = "x"; then + echo "Could not find the cairo-trace shared library in @libdir@/cairo/." >&2 + echo "Set the CAIRO_TRACE_SO environment variable to the full path of the library." >&2 + exit 15 +fi + +LD_PRELOAD="$CAIRO_TRACE_SO" +DYLD_INSERT_LIBRARIES="$CAIRO_TRACE_SO" +DYLD_FORCE_FLAT_NAMESPACE=1 +export LD_PRELOAD +export DYLD_INSERT_LIBRARIES +export DYLD_FORCE_FLAT_NAMESPACE + +if test -n "$nocallers"; then + CAIRO_TRACE_LINE_INFO=0 + export CAIRO_TRACE_LINE_INFO +fi + +if test -n "$nomarkdirty"; then + CAIRO_TRACE_MARK_DIRTY=0 + export CAIRO_TRACE_MARK_DIRTY +fi + +if test -n "$flush"; then + CAIRO_TRACE_FLUSH=1 + export CAIRO_TRACE_FLUSH +fi + +if test -z "$nofile"; then + CAIRO_TRACE_OUTDIR=`pwd` "$@" +elif test -n "$compress"; then + name=`basename $1` + echo Generating compressed trace file $name.$$.lzma + CAIRO_TRACE_FD=3 "$@" 3>&1 >/dev/null | lzma -cz9 > $name.$$.lzma +else + CAIRO_TRACE_FD=3 "$@" 3>&1 >/dev/null +fi diff --git a/local/recipes/libs/cairo/source/util/cairo-trace/lookup-symbol.c b/local/recipes/libs/cairo/source/util/cairo-trace/lookup-symbol.c new file mode 100644 index 0000000000..ca15688c43 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-trace/lookup-symbol.c @@ -0,0 +1,326 @@ +/* cairo-trace - a utility to record and replay calls to the Cairo library. + * + * Copyright © 2008 Chris Wilson + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* + * A less hacky utility to lookup the debug strings for a particular + * .text address. + * Derived from backtrace-symbols.c in cairo by Chris Wilson. + */ + +/* + A hacky replacement for backtrace_symbols in glibc + + backtrace_symbols in glibc looks up symbols using dladdr which is limited + in the symbols that it sees. libbacktracesymbols opens the executable and + shared libraries using libbfd and will look up backtrace information using + the symbol table and the dwarf line information. + + It may make more sense for this program to use libelf instead of libbfd. + However, I have not investigated that yet. + + Derived from addr2line.c from GNU Binutils by Jeff Muizelaar + + Copyright 2007 Jeff Muizelaar + */ + +/* addr2line.c -- convert addresses to line number and function name + Copyright 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. + Contributed by Ulrich Lauther + + This file was part of GNU Binutils. + */ + +#include "config.h" + +#define true 1 +#define false 0 + +#include "lookup-symbol.h" + +#include +#include +#include +#include +#include +#include + +#if HAVE_BFD +#include + +struct symtab { + bfd *bfd; + asymbol **syms; +}; + +struct symbol { + int found; + bfd_vma pc; + struct symtab *symtab; + const char *filename; + const char *functionname; + unsigned int line; +}; + + +static void +_symtab_fini (struct symtab *symtab) +{ + free (symtab->syms); + if (symtab->bfd != NULL) + bfd_close (symtab->bfd); +} + +/* Read in the symbol table. */ +static int +_symtab_init (struct symtab *symtab, const char *filename) +{ + char **matching; + long symcount; + unsigned int size; + + symtab->bfd = NULL; + symtab->syms = NULL; + + symtab->bfd = bfd_openr (filename, NULL); + if (symtab->bfd == NULL) + goto BAIL; + + if (bfd_check_format (symtab->bfd, bfd_archive)) + goto BAIL; + + if (! bfd_check_format_matches (symtab->bfd, bfd_object, &matching)) + goto BAIL; + + symcount = bfd_read_minisymbols (symtab->bfd, false, (void **) &symtab->syms, &size); + if (symcount == 0) { + symcount = bfd_read_minisymbols (symtab->bfd, true /* dynamic */ , + (void **) &symtab->syms, &size); + } + if (symcount < 0) + goto BAIL; + + if ((bfd_get_file_flags (symtab->bfd) & HAS_SYMS) == 0) + goto BAIL; + + return 1; + +BAIL: + _symtab_fini (symtab); + return 0; +} + +/* Look for an address in a section. + * This is called via bfd_map_over_sections. + */ +static void +find_address_in_section (bfd *abfd, + asection *section, + void *data) +{ + bfd_vma vma; + bfd_size_type size; + struct symbol *symbol = data; + struct symtab *symtab = symbol->symtab; + + if (symbol->found) + return; + + if ((bfd_section_flags (section) & SEC_ALLOC) == 0) + return; + + vma = bfd_section_vma (section); + if (symbol->pc < vma) + return; + + size = bfd_section_size (section); + if (symbol->pc >= vma + size) + return; + + symbol->found = bfd_find_nearest_line (symtab->bfd, section, + symtab->syms, + symbol->pc - vma, + &symbol->filename, + &symbol->functionname, + &symbol->line); +} + +static void +_symbol_fini (struct symbol *symbol) +{ +} + +static void +_symbol_init (struct symbol *symbol, struct symtab *symtab, bfd_vma addr) +{ + symbol->found = false; + symbol->symtab = symtab; + symbol->pc = addr; +} + +static void +_symbol_print (struct symbol *symbol, char *buf, int buflen, const char *filename) +{ + const char *name, *h; + char path[1024]; + + if (! symbol->found) + return; + + name = symbol->functionname; + if (name == NULL || *name == '\0') + name = "??"; + + if (symbol->filename != NULL) + filename = symbol->filename; + if (strcmp (filename, "/proc/self/exe") == 0) { + int len = readlink ("/proc/self/exe", path, sizeof (path) - 1); + if (len != -1) { + path[len] = '\0'; + filename = path; + } + } + h = strrchr (filename, '/'); + if (h != NULL) + filename = h + 1; + + if (symbol->line) { + snprintf (buf, buflen, "%s() [%s:%u]", + name, filename, symbol->line); + } else { + snprintf (buf, buflen, "%s() [%s]", name, filename); + } +} +#endif + +struct file_match { + const char *file; + ElfW(Addr) address; + ElfW(Addr) base; + void *hdr; +}; + +static int +find_matching_file (struct dl_phdr_info *info, size_t size, void *data) +{ + struct file_match *match = data; + /* This code is modeled from Gfind_proc_info-lsb.c:callback() from libunwind */ + long n; + const ElfW(Phdr) *phdr; + ElfW(Addr) load_base = info->dlpi_addr; + + phdr = info->dlpi_phdr; + for (n = info->dlpi_phnum; --n >= 0; phdr++) { + if (phdr->p_type == PT_LOAD) { + ElfW(Addr) vaddr = phdr->p_vaddr + load_base; + if (match->address >= vaddr && + match->address < vaddr + phdr->p_memsz) + { + /* we found a match */ + match->file = info->dlpi_name; + match->base = info->dlpi_addr; + return 1; + } + } + } + + return 0; +} + +struct symbol_cache_entry { + const void *ptr; + struct symbol_cache_entry *hash_prev, *hash_next; + char name[0]; +}; + +static struct symbol_cache_entry *symbol_cache_hash[13477]; +static pthread_mutex_t symbol_cache_mutex = PTHREAD_MUTEX_INITIALIZER; + +char * +lookup_symbol (char *buf, int buflen, const void *ptr) +{ + struct file_match match; +#if HAVE_BFD + struct symtab symtab; + struct symbol symbol; +#endif + struct symbol_cache_entry *cache; + int bucket; + int len; + + bucket = (uintptr_t) ptr % (sizeof (symbol_cache_hash) / sizeof (symbol_cache_hash[0])); + pthread_mutex_lock (&symbol_cache_mutex); + for (cache = symbol_cache_hash[bucket]; + cache != NULL; + cache = cache->hash_next) + { + if (cache->ptr == ptr) { + if (cache->hash_prev != NULL) { + cache->hash_prev->hash_next = cache->hash_next; + if (cache->hash_next != NULL) + cache->hash_next->hash_prev = cache->hash_prev; + cache->hash_prev = NULL; + cache->hash_next = symbol_cache_hash[bucket]; + symbol_cache_hash[bucket]->hash_prev = cache; + symbol_cache_hash[bucket] = cache; + } + + pthread_mutex_unlock (&symbol_cache_mutex); + return cache->name; + } + } + pthread_mutex_unlock (&symbol_cache_mutex); + + match.file = NULL; + match.address = (ElfW(Addr)) ptr; + dl_iterate_phdr (find_matching_file, &match); + + snprintf (buf, buflen, "0x%llx", + (long long unsigned int) match.address); + + if (match.file == NULL || *match.file == '\0') + match.file = "/proc/self/exe"; + +#if HAVE_BFD + if (_symtab_init (&symtab, match.file)) { + _symbol_init (&symbol, &symtab, match.address - match.base); + bfd_map_over_sections (symtab.bfd, find_address_in_section, &symbol); + if (symbol.found) + _symbol_print (&symbol, buf, buflen, match.file); + _symbol_fini (&symbol); + + _symtab_fini (&symtab); + } +#endif + + len = strlen (buf); + cache = malloc (sizeof (struct symbol_cache_entry) + len + 1); + if (cache != NULL) { + cache->ptr = ptr; + memcpy (cache->name, buf, len + 1); + + pthread_mutex_lock (&symbol_cache_mutex); + cache->hash_prev = NULL; + cache->hash_next = symbol_cache_hash[bucket]; + if (symbol_cache_hash[bucket] != NULL) + symbol_cache_hash[bucket]->hash_prev = cache; + symbol_cache_hash[bucket] = cache; + pthread_mutex_unlock (&symbol_cache_mutex); + } + + return buf; +} diff --git a/local/recipes/libs/cairo/source/util/cairo-trace/lookup-symbol.h b/local/recipes/libs/cairo/source/util/cairo-trace/lookup-symbol.h new file mode 100644 index 0000000000..83817edc6d --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-trace/lookup-symbol.h @@ -0,0 +1,24 @@ +/* cairo-trace - a utility to record and replay calls to the Cairo library. + * + * Copyright © 2008 Chris Wilson + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef LOOKUP_SYMBOLS_H + +char * +lookup_symbol (char *buf, int len, const void *ptr); + +#endif /*LOOKUP_SYMBOLS_H */ diff --git a/local/recipes/libs/cairo/source/util/cairo-trace/meson.build b/local/recipes/libs/cairo/source/util/cairo-trace/meson.build new file mode 100644 index 0000000000..8d4ac131b1 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-trace/meson.build @@ -0,0 +1,36 @@ +cairo_trace_sources = [ + 'trace.c', +] + +if conf.get('CAIRO_HAS_SYMBOL_LOOKUP', 0) == 1 + cairo_trace_sources += ['lookup-symbol.c'] +endif + +shared_lib_ext = libcairo.full_path().split('.')[-1] + +libcairotrace = library('cairo-trace', cairo_trace_sources, + include_directories: [incbase, incsrc], + dependencies: deps, + c_args: ['-DSHARED_LIB_EXT="@0@"'.format(shared_lib_ext),] + pthread_c_args, + link_args: extra_link_args, + gnu_symbol_visibility: 'hidden', + install: true, + install_dir: get_option('libdir') / 'cairo', +) + +trace_conf = configuration_data() +trace_conf.set('prefix', get_option('prefix')) +trace_conf.set('exec_prefix', get_option('prefix')) +trace_conf.set('libdir', get_option('prefix') / get_option('libdir')) +trace_conf.set('CAIRO_VERSION_MAJOR', meson.project_version().split('.')[0]) +trace_conf.set('CAIRO_VERSION_MINOR', meson.project_version().split('.')[1]) +trace_conf.set('CAIRO_VERSION_MICRO', meson.project_version().split('.')[2]) +trace_conf.set('SHLIB_EXT', shared_lib_ext) + +configure_file(input: 'cairo-trace.in', + output: 'cairo-trace', + configuration: trace_conf, + install: true, + install_dir: join_paths(get_option('prefix'), get_option('bindir')), + install_mode: 'rwxr-xr-x', +) diff --git a/local/recipes/libs/cairo/source/util/cairo-trace/trace.c b/local/recipes/libs/cairo/source/util/cairo-trace/trace.c new file mode 100644 index 0000000000..8bdb3f8819 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-trace/trace.c @@ -0,0 +1,5325 @@ +/* cairo-trace - a utility to record and replay calls to the Cairo library. + * + * Copyright © 2008 Chris Wilson + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include "config.h" + +/* The autoconf on OpenBSD 4.5 produces the malformed constant name + * SIZEOF_VOID__ rather than SIZEOF_VOID_P. Work around that here. */ +#if !defined(SIZEOF_VOID_P) && defined(SIZEOF_VOID__) +# define SIZEOF_VOID_P SIZEOF_VOID__ +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include /* for locale independent %f printing */ +#include +#include +#include +#include +#include + +#include +#if CAIRO_HAS_FT_FONT +# include +#endif + +#include "cairo-ctype-inline.h" + +#ifndef TRUE +#define TRUE 1 +#define FALSE 0 +#endif + +#ifndef CAIRO_TRACE_OUTDIR +#define CAIRO_TRACE_OUTDIR "." +#endif + +#define DEBUG_STACK 0 + +#if HAVE_BYTESWAP_H +# include +#endif +#ifndef bswap_16 +# define bswap_16(p) \ + (((((uint16_t)(p)) & 0x00ff) << 8) | \ + (((uint16_t)(p)) >> 8)) +#endif +#ifndef bswap_32 +# define bswap_32(p) \ + (((((uint32_t)(p)) & 0x000000ff) << 24) | \ + ((((uint32_t)(p)) & 0x0000ff00) << 8) | \ + ((((uint32_t)(p)) & 0x00ff0000) >> 8) | \ + ((((uint32_t)(p))) >> 24)) +#endif + +#if WORDS_BIGENDIAN +#define le16(x) bswap_16 (x) +#define le32(x) bswap_32 (x) +#define be16(x) x +#define be32(x) x +#define to_be32(x) x +#else +#define le16(x) x +#define le32(x) x +#define be16(x) bswap_16 (x) +#define be32(x) bswap_32 (x) +#define to_be32(x) bswap_32 (x) +#endif + +#if CAIRO_HAS_SYMBOL_LOOKUP +#include "lookup-symbol.h" +#endif + +/* Reverse the bits in a byte with 7 operations (no 64-bit): + * Devised by Sean Anderson, July 13, 2001. + * Source: http://graphics.stanford.edu/~seander/bithacks.html#ReverseByteWith32Bits + */ +#define CAIRO_BITSWAP8(c) ((((c) * 0x0802LU & 0x22110LU) | ((c) * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16) + +#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4) +#ifdef __MINGW32__ +#define CAIRO_PRINTF_FORMAT(fmt_index, va_index) \ + __attribute__((__format__(__MINGW_PRINTF_FORMAT, fmt_index, va_index))) +#else +#define CAIRO_PRINTF_FORMAT(fmt_index, va_index) \ + __attribute__((__format__(__printf__, fmt_index, va_index))) +#endif +#else +#define CAIRO_PRINTF_FORMAT(fmt_index, va_index) +#endif + +/* XXX implement manual vprintf so that the user can control precision of + * printed numbers. + */ + +static void *_dlhandle = RTLD_NEXT; +#define DLCALL(name, args...) ({ \ + static typeof (&name) name##_real; \ + if (name##_real == NULL) { \ + name##_real = (typeof (&name))(dlsym (_dlhandle, #name)); \ + if (name##_real == NULL && _dlhandle == RTLD_NEXT) { \ + _dlhandle = dlopen ("libcairo." SHARED_LIB_EXT, RTLD_LAZY); \ + name##_real = (typeof (&name))(dlsym (_dlhandle, #name)); \ + assert (name##_real != NULL); \ + } \ + } \ + (*name##_real) (args); \ +}) + +#ifndef ARRAY_LENGTH +#define ARRAY_LENGTH(__array) ((int) (sizeof (__array) / sizeof (__array[0]))) +#endif + +#if SIZEOF_VOID_P == 4 +#define PTR_SHIFT 2 +#elif SIZEOF_VOID_P == 8 +#define PTR_SHIFT 3 +#else +#error Unexpected pointer size +#endif +#define BUCKET(b, ptr) (((uintptr_t) (ptr) >> PTR_SHIFT) % ARRAY_LENGTH (b)) + +#if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__) +#define _BOOLEAN_EXPR(expr) \ + __extension__ ({ \ + int _boolean_var_; \ + if (expr) \ + _boolean_var_ = 1; \ + else \ + _boolean_var_ = 0; \ + _boolean_var_; \ +}) +#define LIKELY(expr) (__builtin_expect (_BOOLEAN_EXPR(expr), 1)) +#define UNLIKELY(expr) (__builtin_expect (_BOOLEAN_EXPR(expr), 0)) +#else +#define LIKELY(expr) (expr) +#define UNLIKELY(expr) (expr) +#endif + +typedef struct _object Object; +typedef struct _type Type; + +struct _object { + const void *addr; + Type *type; + unsigned long int token; + int width, height; + cairo_bool_t foreign; + cairo_bool_t defined; + cairo_bool_t unknown; + int operand; + void *data; + void (*destroy)(void *); + Object *next, *prev; +}; + +struct _type { + const char *name; + + enum operand_type { + NONE, + SURFACE, + CONTEXT, + FONT_FACE, + PATTERN, + SCALED_FONT, + _N_OP_TYPES + } op_type; + const char *op_code; + + pthread_mutex_t mutex; + struct _bitmap { + unsigned long int min; + unsigned long int count; + unsigned int map[64]; + struct _bitmap *next; + } map; + Object *objects[607]; + Type *next; +}; + +static struct _type_table { + pthread_mutex_t mutex; + Type *op_types[_N_OP_TYPES]; +} Types; + +static FILE *logfile; +static cairo_bool_t _flush; +static cairo_bool_t _error; +static cairo_bool_t _line_info; +static cairo_bool_t _mark_dirty; +static const cairo_user_data_key_t destroy_key; +static pthread_once_t once_control = PTHREAD_ONCE_INIT; +static pthread_key_t counter_key; + +static void _init_trace (void); + +#define INIT_TRACE_ONCE() pthread_once (&once_control, _init_trace) + +#if __GNUC__ >= 3 && defined(__ELF__) && !defined(__sun) +# define _enter_trace() INIT_TRACE_ONCE () +# define _exit_trace() do { } while (0) +# define _should_trace() 1 +# define USE_ENTER_EXIT 0 +#else +static void _enter_trace (void); +static void _exit_trace (void); +static cairo_bool_t _should_trace (void); +# define USE_ENTER_EXIT 1 +#endif + +#if HAVE_BUILTIN_RETURN_ADDRESS && CAIRO_HAS_SYMBOL_LOOKUP +#define _emit_line_info() do { \ + if (_line_info && _write_lock ()) { \ + void *addr = __builtin_return_address(0); \ + char caller[1024]; \ + _trace_printf ("%% %s() called by %s\n", __FUNCTION__, \ + lookup_symbol (caller, sizeof (caller), addr)); \ + _write_unlock (); \ + } \ +} while (0) +#else +#define _emit_line_info() +#endif + +static void +_type_release_token (Type *t, unsigned long int token) +{ + struct _bitmap *b, **prev = NULL; + + b = &t->map; + while (b != NULL) { + if (token < b->min + sizeof (b->map) * CHAR_BIT) { + unsigned int bit, elem; + + token -= b->min; + elem = token / (sizeof (b->map[0]) * CHAR_BIT); + bit = token % (sizeof (b->map[0]) * CHAR_BIT); + b->map[elem] &= ~(1 << bit); + if (! --b->count && prev) { + *prev = b->next; + free (b); + } + return; + } + prev = &b->next; + b = b->next; + } +} + +static unsigned long int +_type_next_token (Type *t) +{ + struct _bitmap *b, *bb, **prev = NULL; + unsigned long int min = 0; + + b = &t->map; + while (b != NULL) { + if (b->min != min) + break; + + if (b->count < sizeof (b->map) * CHAR_BIT) { + unsigned int n, m, bit; + for (n = 0; n < ARRAY_LENGTH (b->map); n++) { + if (b->map[n] == (unsigned int) -1) + continue; + + for (m=0, bit=1; mmap[0])*CHAR_BIT; m++, bit<<=1) { + if ((b->map[n] & bit) == 0) { + b->map[n] |= bit; + b->count++; + return n * sizeof (b->map[0])*CHAR_BIT + m + b->min; + } + } + } + } + min += sizeof (b->map) * CHAR_BIT; + + prev = &b->next; + b = b->next; + } + assert (prev != NULL); + + bb = malloc (sizeof (struct _bitmap)); + + *prev = bb; + bb->next = b; + bb->min = min; + bb->count = 1; + bb->map[0] = 0x1; + memset (bb->map + 1, 0, sizeof (bb->map) - sizeof (bb->map[0])); + + return min; +} + +static void +_object_destroy (Object *obj) +{ + int bucket; + + pthread_mutex_lock (&obj->type->mutex); + bucket = BUCKET (obj->type->objects, obj->addr); + _type_release_token (obj->type, obj->token); + + if (obj->prev != NULL) + obj->prev->next = obj->next; + else + obj->type->objects[bucket] = obj->next; + + if (obj->next != NULL) + obj->next->prev = obj->prev; + pthread_mutex_unlock (&obj->type->mutex); + + if (obj->data != NULL && obj->destroy != NULL) + obj->destroy (obj->data); + + free (obj); +} + +static void +_type_create (const char *typename, + enum operand_type op_type, + const char *op_code) +{ + Type *t; + + pthread_mutex_lock (&Types.mutex); + + t = malloc (sizeof (Type)); + t->name = typename; + t->op_type = op_type; + t->op_code = op_code; + + pthread_mutex_init (&t->mutex, NULL); + + t->map.min = 0; + t->map.count = 0; + memset (t->map.map, 0, sizeof (t->map.map)); + t->map.next = NULL; + + memset (t->objects, 0, sizeof (t->objects)); + + t->next = NULL; + + Types.op_types[op_type] = t; + pthread_mutex_unlock (&Types.mutex); +} + +static Type * +_get_type (enum operand_type type) +{ + return Types.op_types[type]; +} + +static void +_type_destroy (Type *t) +{ + int n; + struct _bitmap *b; + + for (n = 0; n < ARRAY_LENGTH (t->objects); n++) { + Object *obj = t->objects[n]; + while (obj != NULL) { + Object *next = obj->next; + _object_destroy (obj); + obj = next; + } + } + + b = t->map.next; + while (b != NULL) { + struct _bitmap *next = b->next; + free (b); + b = next; + } + + pthread_mutex_destroy (&t->mutex); + free (t); +} + +static Object * +_type_get_object (Type *type, const void *ptr) +{ + Object *obj; + int bucket = BUCKET (type->objects, ptr); + + for (obj = type->objects[bucket]; obj != NULL; obj = obj->next) { + if (obj->addr == ptr) { + if (obj->prev != NULL) { /* mru */ + obj->prev->next = obj->next; + if (obj->next != NULL) + obj->next->prev = obj->prev; + obj->prev = NULL; + type->objects[bucket]->prev = obj; + obj->next = type->objects[bucket]; + type->objects[bucket] = obj; + } + return obj; + } + } + + return NULL; +} + +static Object * +_object_create (Type *type, const void *ptr) +{ + Object *obj; + int bucket = BUCKET (type->objects, ptr); + + obj = malloc (sizeof (Object)); + obj->unknown = TRUE; + obj->defined = FALSE; + obj->foreign = FALSE; + obj->operand = -1; + obj->type = type; + obj->addr = ptr; + obj->token = _type_next_token (type); + obj->data = NULL; + obj->destroy = NULL; + obj->prev = NULL; + obj->next = type->objects[bucket]; + if (type->objects[bucket] != NULL) + type->objects[bucket]->prev = obj; + type->objects[bucket] = obj; + + return obj; +} + +#if USE_ENTER_EXIT +static int * +_get_counter (void) +{ + int *counter = pthread_getspecific (counter_key); + if (counter == NULL) { + counter = calloc(1, sizeof(int)); + pthread_setspecific (counter_key, counter); + } + return counter; +} + +static void +_enter_trace (void) +{ + INIT_TRACE_ONCE (); + _get_counter ()[0]++; +} + +static void +_exit_trace (void) +{ + _get_counter ()[0]--; +} + +static cairo_bool_t +_should_trace (void) +{ + return _get_counter ()[0] <= 1; +} +#endif /* USE_ENTER_EXIT */ + +static void +_init_trace (void) +{ + pthread_mutex_init (&Types.mutex, NULL); + pthread_key_create (&counter_key, free); + + _type_create ("unclassed", NONE, ""); + _type_create ("cairo_t", CONTEXT, "c"); + _type_create ("cairo_font_face_t", FONT_FACE, "f"); + _type_create ("cairo_pattern_t", PATTERN, "p"); + _type_create ("cairo_scaled_font_t", SCALED_FONT, "sf"); + _type_create ("cairo_surface_t", SURFACE, "s"); +} + +static void +_close_trace (void) +{ + if (logfile != NULL) { + fclose (logfile); + logfile = NULL; + } +} + +static void __attribute__ ((destructor)) +_fini_trace (void) +{ + int n; + + _close_trace (); + + for (n = 0; n < ARRAY_LENGTH (Types.op_types); n++) { + if (Types.op_types[n]) { + _type_destroy (Types.op_types[n]); + Types.op_types[n] = NULL; + } + } + + pthread_mutex_destroy (&Types.mutex); +} + +/* Format a double in a locale independent way and trim trailing + * zeros. Based on code from Alex Larson . + * https://mail.gnome.org/archives/gtk-devel-list/2001-October/msg00087.html + * + * The code in the patch is copyright Red Hat, Inc under the LGPL. + */ +#define SIGNIFICANT_DIGITS_AFTER_DECIMAL 6 +static void +_trace_dtostr (char *buffer, size_t size, double d) +{ + struct lconv *locale_data; + const char *decimal_point; + int decimal_point_len; + char *p; + int decimal_len; + int num_zeros, decimal_digits; + + /* Omit the minus sign from negative zero. */ + if (d == 0.0) + d = 0.0; + + locale_data = localeconv (); + decimal_point = locale_data->decimal_point; + decimal_point_len = strlen (decimal_point); + + /* Using "%f" to print numbers less than 0.1 will result in + * reduced precision due to the default 6 digits after the + * decimal point. + * + * For numbers is < 0.1, we print with maximum precision and count + * the number of zeros between the decimal point and the first + * significant digit. We then print the number again with the + * number of decimal places that gives us the required number of + * significant digits. This ensures the number is correctly + * rounded. + */ + if (fabs (d) >= 0.1) { + snprintf (buffer, size, "%f", d); + } else { + snprintf (buffer, size, "%.18f", d); + p = buffer; + + if (*p == '+' || *p == '-') + p++; + + while (_cairo_isdigit (*p)) + p++; + + if (strncmp (p, decimal_point, decimal_point_len) == 0) + p += decimal_point_len; + + num_zeros = 0; + while (*p++ == '0') + num_zeros++; + + decimal_digits = num_zeros + SIGNIFICANT_DIGITS_AFTER_DECIMAL; + + if (decimal_digits < 18) + snprintf (buffer, size, "%.*f", decimal_digits, d); + } + p = buffer; + + if (*p == '+' || *p == '-') + p++; + + while (_cairo_isdigit (*p)) + p++; + + if (strncmp (p, decimal_point, decimal_point_len) == 0) { + *p = '.'; + decimal_len = strlen (p + decimal_point_len); + memmove (p + 1, p + decimal_point_len, decimal_len); + p[1 + decimal_len] = 0; + + /* Remove trailing zeros and decimal point if possible. */ + for (p = p + decimal_len; *p == '0'; p--) + *p = 0; + + if (*p == '.') { + *p = 0; + p--; + } + } +} + +enum { + LENGTH_MODIFIER_LONG = 0x100 +}; + +/* Here's a limited reimplementation of printf. The reason for doing + * this is primarily to special case handling of doubles. We want + * locale independent formatting of doubles and we want to trim + * trailing zeros. This is handled by dtostr() above, and the code + * below handles everything else by calling snprintf() to do the + * formatting. This functionality is only for internal use and we + * only implement the formats we actually use. + */ +static void CAIRO_PRINTF_FORMAT(1, 0) +_trace_vprintf (const char *fmt, va_list ap) +{ +#define SINGLE_FMT_BUFFER_SIZE 32 + char buffer[512], single_fmt[SINGLE_FMT_BUFFER_SIZE]; + int single_fmt_length; + char *p; + const char *f, *start; + int length_modifier, width; + cairo_bool_t var_width; + int ret_ignored; + + assert (_should_trace ()); + + f = fmt; + p = buffer; + while (*f != '\0') { + if (*f != '%') { + *p++ = *f++; + continue; + } + + start = f; + f++; + + if (*f == '0') + f++; + + var_width = 0; + if (*f == '*') { + var_width = 1; + f++; + } + + while (_cairo_isdigit (*f)) + f++; + + length_modifier = 0; + if (*f == 'l') { + length_modifier = LENGTH_MODIFIER_LONG; + f++; + } + + /* The only format strings exist in the cairo implementation + * itself. So there's an internal consistency problem if any + * of them is larger than our format buffer size. */ + single_fmt_length = f - start + 1; + + /* Reuse the format string for this conversion. */ + memcpy (single_fmt, start, single_fmt_length); + single_fmt[single_fmt_length] = '\0'; + + /* Flush contents of buffer before snprintf()'ing into it. */ + ret_ignored = fwrite (buffer, 1, p-buffer, logfile); + + /* We group signed and unsigned together in this switch, the + * only thing that matters here is the size of the arguments, + * since we're just passing the data through to sprintf(). */ + switch (*f | length_modifier) { + case '%': + buffer[0] = *f; + buffer[1] = 0; + break; + case 'd': + case 'u': + case 'o': + case 'x': + case 'X': + if (var_width) { + width = va_arg (ap, int); + snprintf (buffer, sizeof buffer, + single_fmt, width, va_arg (ap, int)); + } else { + snprintf (buffer, sizeof buffer, single_fmt, va_arg (ap, int)); + } + break; + case 'd' | LENGTH_MODIFIER_LONG: + case 'u' | LENGTH_MODIFIER_LONG: + case 'o' | LENGTH_MODIFIER_LONG: + case 'x' | LENGTH_MODIFIER_LONG: + case 'X' | LENGTH_MODIFIER_LONG: + if (var_width) { + width = va_arg (ap, int); + snprintf (buffer, sizeof buffer, + single_fmt, width, va_arg (ap, long int)); + } else { + snprintf (buffer, sizeof buffer, + single_fmt, va_arg (ap, long int)); + } + break; + case 's': + snprintf (buffer, sizeof buffer, + single_fmt, va_arg (ap, const char *)); + break; + case 'f': + case 'g': + _trace_dtostr (buffer, sizeof buffer, va_arg (ap, double)); + break; + case 'c': + buffer[0] = va_arg (ap, int); + buffer[1] = 0; + break; + default: + break; + } + p = buffer + strlen (buffer); + f++; + } + + ret_ignored = fwrite (buffer, 1, p-buffer, logfile); + (void)ret_ignored; +} + +static void CAIRO_PRINTF_FORMAT(1, 2) +_trace_printf (const char *fmt, ...) +{ + va_list ap; + + va_start (ap, fmt); + _trace_vprintf (fmt, ap); + va_end (ap); +} + +static void +get_prog_name (char *buf, int length) +{ + char *slash; + FILE *file; + + memset (buf, 0, length); + if (length == 0) + return; + + file = fopen ("/proc/self/cmdline", "rb"); + if (file != NULL) { + slash = fgets (buf, length, file); + fclose (file); + + if (slash == NULL) + return; + } else { + char const *name = getenv ("CAIRO_TRACE_PROG_NAME"); + if (name != NULL) { + strncpy (buf, name, length-1); + } + } + + slash = strrchr (buf, '/'); + if (slash != NULL) { + size_t len = strlen (slash+1); + memmove (buf, slash+1, len+1); + } +} + +static void +_emit_header (void) +{ + char name[4096] = ""; + + get_prog_name (name, sizeof (name)); + + _trace_printf ("%%!CairoScript - %s\n", name); +} + +static cairo_bool_t +_init_logfile (void) +{ + static cairo_bool_t initialized; + char buf[4096]; + const char *filename; + const char *env; + + if (initialized) + return logfile != NULL; + + initialized = TRUE; + + env = getenv ("CAIRO_TRACE_FLUSH"); + if (env != NULL) + _flush = atoi (env); + + _line_info = TRUE; + env = getenv ("CAIRO_TRACE_LINE_INFO"); + if (env != NULL) + _line_info = atoi (env); + + _mark_dirty = TRUE; + env = getenv ("CAIRO_TRACE_MARK_DIRTY"); + if (env != NULL) + _mark_dirty = atoi (env); + + filename = getenv ("CAIRO_TRACE_FD"); + if (filename != NULL) { + int fd = atoi (filename); + if (fd == -1) + return FALSE; + + logfile = fdopen (fd, "w"); + if (logfile == NULL) { + fprintf (stderr, "Failed to open trace file descriptor '%s': %s\n", + filename, strerror (errno)); + return FALSE; + } + + setenv ("CAIRO_TRACE_FD", "-1", 1); + goto done; + } + + filename = getenv ("CAIRO_TRACE_OUTFILE_EXACT"); + if (filename == NULL) { + char name[4096] = ""; + + filename = getenv ("CAIRO_TRACE_OUTDIR"); + if (filename == NULL) + filename = CAIRO_TRACE_OUTDIR; + + get_prog_name (name, sizeof (name)); + if (*name == '\0') + strcpy (name, "cairo-trace.dat"); + + if (snprintf (buf, sizeof (buf), "%s/%s.%d.trace", + filename, name, getpid()) >= (int) sizeof (buf)) + { + fprintf (stderr, "cairo-trace: Trace file name too long\n"); + return FALSE; + } + + filename = buf; + } else { + setenv ("CAIRO_TRACE_FD", "-1", 1); + } + + logfile = fopen (filename, "wb"); + if (logfile == NULL) { + fprintf (stderr, "Failed to open trace file '%s': %s\n", + filename, strerror (errno)); + return FALSE; + } + + fprintf (stderr, "cairo-trace: Recording cairo trace data to %s\n", + filename); + +done: + atexit (_close_trace); + _emit_header (); + return TRUE; +} + +static cairo_bool_t +_write_lock (void) +{ + if (_error) + return FALSE; + + if (! _should_trace ()) + return FALSE; + + if (! _init_logfile ()) + return FALSE; + +#if HAVE_FLOCKFILE && HAVE_FUNLOCKFILE + flockfile (logfile); +#endif + return TRUE; +} + +static void +_write_unlock (void) +{ + if (logfile == NULL) + return; + +#if HAVE_FLOCKFILE && HAVE_FUNLOCKFILE + funlockfile (logfile); +#endif + + if (_flush) + fflush (logfile); +} + + +static Object * +_type_object_create (enum operand_type op_type, const void *ptr) +{ + Type *type; + Object *obj; + + type = _get_type (op_type); + + pthread_mutex_lock (&type->mutex); + obj = _object_create (type, ptr); + pthread_mutex_unlock (&type->mutex); + + return obj; +} + +static Object * +_get_object (enum operand_type op_type, const void *ptr) +{ + Type *type; + Object *obj; + + type = _get_type (op_type); + pthread_mutex_lock (&type->mutex); + obj = _type_get_object (type, ptr); + pthread_mutex_unlock (&type->mutex); + + return obj; +} + +static Object *current_object[2048]; /* XXX limit operand stack */ +static int current_stack_depth; + +static void +dump_stack(const char *func) +{ +#if DEBUG_STACK + int n; + + _trace_printf ("%% %s: stack[%d] = [", func, current_stack_depth); + fflush (logfile); + for (n = 0; n < current_stack_depth; n++) { + Object *obj = current_object[n]; + assert(obj && obj->type); + _trace_printf (" %s%s%ld", + obj->defined ? "" : "*", + obj->type->op_code, obj->token); + fflush (logfile); + } + _trace_printf (" ]\n"); + fflush (logfile); +#endif +} + +static void +ensure_operands (int num_operands) +{ + if (current_stack_depth < num_operands) { + int n; + + fprintf (stderr, "Operand stack underflow!\n"); + for (n = 0; n < current_stack_depth; n++) { + Object *obj = current_object[n]; + + fprintf (stderr, " [%3d] = %s%ld\n", + n, obj->type->op_code, obj->token); + } + + abort (); + } +} + +static void +_consume_operand (bool discard) +{ + Object *obj; + + ensure_operands (1); + obj = current_object[--current_stack_depth]; + if (!discard && ! obj->defined) { + _trace_printf ("dup /%s%ld exch def\n", + obj->type->op_code, + obj->token); + obj->defined = TRUE; + } + obj->operand = -1; +} + +static void +_exch_operands (void) +{ + Object *tmp; + + ensure_operands (2); + tmp = current_object[current_stack_depth-1]; + tmp->operand--; + current_object[current_stack_depth-1] = current_object[current_stack_depth-2]; + current_object[current_stack_depth-2] = tmp; + tmp = current_object[current_stack_depth-1]; + tmp->operand++; +} + +static cairo_bool_t +_pop_operands_to_depth (int depth) +{ + if (depth < 0) + return FALSE; + + assert(current_stack_depth >= depth); + if (current_stack_depth == depth) + return TRUE; + + while (current_stack_depth > depth + 1) { + Object *c_obj; + + ensure_operands (1); + c_obj = current_object[--current_stack_depth]; + + assert(c_obj); + assert(c_obj->type); + + if (! c_obj->defined) { + current_stack_depth++; + return FALSE; + } + + _trace_printf ("pop %% %s%ld\n", + c_obj->type->op_code, c_obj->token); + c_obj->operand = -1; + } + + _exch_operands (); + _trace_printf ("exch\n"); + + dump_stack(__func__); + return TRUE; +} + +static cairo_bool_t +_pop_operands_to_object (Object *obj) +{ + if (!obj) + return FALSE; + + if (obj->operand == -1) + return FALSE; + + if (obj->operand == current_stack_depth - 1) + return TRUE; + + if (obj->operand == current_stack_depth - 2) { + _exch_operands (); + _trace_printf ("exch "); + return TRUE; + } + + return _pop_operands_to_depth (obj->operand + 1); +} + +static cairo_bool_t +_pop_operands_to (enum operand_type t, const void *ptr) +{ + return _pop_operands_to_object (_get_object (t, ptr)); +} + +static cairo_bool_t +_is_current_object (Object *obj, int depth) +{ + if (current_stack_depth <= depth) + return FALSE; + return current_object[current_stack_depth-depth-1] == obj; +} + +static cairo_bool_t +_is_current (enum operand_type type, const void *ptr, int depth) +{ + return _is_current_object (_get_object (type, ptr), depth); +} + +static void +_push_object(Object *obj) +{ + assert(obj->operand == -1); + + if (current_stack_depth == ARRAY_LENGTH (current_object)) { + int n; + + fprintf (stderr, "Operand stack overflow!\n"); + for (n = 0; n < current_stack_depth; n++) { + obj = current_object[n]; + + fprintf (stderr, " [%3d] = %s%ld\n", + n, obj->type->op_code, obj->token); + } + + abort (); + } + + obj->operand = current_stack_depth; + current_object[current_stack_depth++] = obj; +} + +static void +_push_operand (enum operand_type t, const void *ptr) +{ + _push_object(_get_object(t, ptr)); +} + +static void +_object_remove (Object *obj) +{ + if (obj->operand != -1) { + ensure_operands (1); + if (obj->operand == current_stack_depth - 1) { + _trace_printf ("pop %% %s%ld destroyed\n", + obj->type->op_code, obj->token); + } else if (obj->operand == current_stack_depth - 2) { + _exch_operands (); + _trace_printf ("exch pop %% %s%ld destroyed\n", + obj->type->op_code, obj->token); + } else { + int n; + + _trace_printf ("%d -1 roll pop %% %s%ld destroyed\n", + current_stack_depth - obj->operand, + obj->type->op_code, obj->token); + + for (n = obj->operand; n < current_stack_depth - 1; n++) { + current_object[n] = current_object[n+1]; + current_object[n]->operand = n; + } + } + obj->operand = -1; + + current_stack_depth--; + dump_stack(__func__); + } +} + +static void +_object_undef (void *ptr) +{ + Object *obj = ptr; + + if (_write_lock ()) { + _object_remove (obj); + + if (obj->defined) { + _trace_printf ("/%s%ld undef\n", + obj->type->op_code, obj->token); + } + + _write_unlock (); + } + + _object_destroy (obj); +} + +static long +_create_context_id (cairo_t *cr) +{ + Object *obj; + + obj = _get_object (CONTEXT, cr); + if (obj == NULL) { + obj = _type_object_create (CONTEXT, cr); + DLCALL (cairo_set_user_data, + cr, &destroy_key, obj, _object_undef); + } + + return obj->token; +} + +static long +_get_id (enum operand_type op_type, const void *ptr) +{ + Object *obj; + + obj = _get_object (op_type, ptr); + if (obj == NULL) { + if (logfile != NULL) { + _trace_printf ("%% Unknown object of type %s, trace is incomplete.", + _get_type (op_type)->name); + } + _error = TRUE; + return -1; + } + + return obj->token; +} + +static cairo_bool_t +_has_id (enum operand_type op_type, const void *ptr) +{ + return _get_object (op_type, ptr) != NULL; +} + +static long +_create_font_face_id (cairo_font_face_t *font_face) +{ + Object *obj; + + obj = _get_object (FONT_FACE, font_face); + if (obj == NULL) { + obj = _type_object_create (FONT_FACE, font_face); + DLCALL (cairo_font_face_set_user_data, + font_face, &destroy_key, obj, _object_undef); + } + + return obj->token; +} + +static long +_get_font_face_id (cairo_font_face_t *font_face) +{ + return _get_id (FONT_FACE, font_face); +} + +static void +_emit_font_face_id (cairo_font_face_t *font_face) +{ + Object *obj = _get_object (FONT_FACE, font_face); + if (obj == NULL) { + _trace_printf ("null "); + } else { + if (obj->defined) { + _trace_printf ("f%ld ", obj->token); + } else { + _trace_printf ("%d index ", current_stack_depth - obj->operand - 1); + } + } +} + +static cairo_bool_t +_has_pattern_id (cairo_pattern_t *pattern) +{ + return _has_id (PATTERN, pattern); +} + +static long +_create_pattern_id (cairo_pattern_t *pattern) +{ + Object *obj; + + obj = _get_object (PATTERN, pattern); + if (obj == NULL) { + obj = _type_object_create (PATTERN, pattern); + DLCALL (cairo_pattern_set_user_data, + pattern, &destroy_key, obj, _object_undef); + } + + return obj->token; +} + +static void +_emit_pattern_id (cairo_pattern_t *pattern) +{ + Object *obj = _get_object (PATTERN, pattern); + if (obj == NULL) { + _trace_printf ("null "); + } else { + if (obj->defined) { + _trace_printf ("p%ld ", obj->token); + } else { + _trace_printf ("%d index ", + current_stack_depth - obj->operand - 1); + } + } +} + +static void +_emit_scaled_font_id (const cairo_scaled_font_t *scaled_font) +{ + Object *obj = _get_object (SCALED_FONT, scaled_font); + if (obj == NULL) { + _trace_printf ("null "); + } else { + if (obj->defined) { + _trace_printf ("sf%ld ", obj->token); + } else { + _trace_printf ("%d index ", + current_stack_depth - obj->operand - 1); + } + } +} + +static long +_create_scaled_font_id (cairo_scaled_font_t *font) +{ + Object *obj; + + assert(_get_object (SCALED_FONT, font) == NULL); + obj = _type_object_create (SCALED_FONT, font); + DLCALL (cairo_scaled_font_set_user_data, + font, &destroy_key, obj, _object_undef); + + return obj->token; +} + +static cairo_bool_t +_has_scaled_font_id (const cairo_scaled_font_t *font) +{ + return _has_id (SCALED_FONT, font); +} + +static Object * +_create_surface (cairo_surface_t *surface) +{ + Object *obj; + + obj = _get_object (SURFACE, surface); + if (obj == NULL) { + obj = _type_object_create (SURFACE, surface); + DLCALL (cairo_surface_set_user_data, + surface, &destroy_key, obj, _object_undef); + } + + return obj; +} + +static long +_get_surface_id (cairo_surface_t *surface) +{ + return _get_id (SURFACE, surface); +} + +static cairo_bool_t +_matrix_is_identity (const cairo_matrix_t *m) +{ + return m->xx == 1. && m->yx == 0. && + m->xy == 0. && m->yy == 1. && + m->x0 == 0. && m->y0 == 0.; +} + +#define BUFFER_SIZE 16384 +struct _data_stream { + z_stream zlib_stream; + unsigned char zin_buf[BUFFER_SIZE]; + unsigned char zout_buf[BUFFER_SIZE]; + unsigned char four_tuple[4]; + int base85_pending; +}; + +static void +_write_zlib_data_start (struct _data_stream *stream) +{ + stream->zlib_stream.zalloc = Z_NULL; + stream->zlib_stream.zfree = Z_NULL; + stream->zlib_stream.opaque = Z_NULL; + + deflateInit (&stream->zlib_stream, Z_DEFAULT_COMPRESSION); + + stream->zlib_stream.next_in = stream->zin_buf; + stream->zlib_stream.avail_in = 0; + stream->zlib_stream.next_out = stream->zout_buf; + stream->zlib_stream.avail_out = BUFFER_SIZE; +} + +static void +_write_base85_data_start (struct _data_stream *stream) +{ + stream->base85_pending = 0; +} + +static cairo_bool_t +_expand_four_tuple_to_five (unsigned char four_tuple[4], + unsigned char five_tuple[5]) +{ + uint32_t value; + int digit, i; + cairo_bool_t all_zero = TRUE; + + value = four_tuple[0] << 24 | + four_tuple[1] << 16 | + four_tuple[2] << 8 | + four_tuple[3] << 0; + for (i = 0; i < 5; i++) { + digit = value % 85; + if (digit != 0 && all_zero) + all_zero = FALSE; + five_tuple[4-i] = digit + 33; + value = value / 85; + } + + return all_zero; +} + +static void +_write_base85_data (struct _data_stream *stream, + const unsigned char *data, + unsigned long length) +{ + unsigned char five_tuple[5]; + int ret; + + assert (_should_trace ()); + + while (length--) { + stream->four_tuple[stream->base85_pending++] = *data++; + if (stream->base85_pending == 4) { + if (_expand_four_tuple_to_five (stream->four_tuple, five_tuple)) + ret = fwrite ("z", 1, 1, logfile); + else + ret = fwrite (five_tuple, 5, 1, logfile); + (void)ret; + stream->base85_pending = 0; + } + } +} + +static void +_write_zlib_data (struct _data_stream *stream, cairo_bool_t flush) +{ + cairo_bool_t finished; + + do { + int ret = deflate (&stream->zlib_stream, flush ? Z_FINISH : Z_NO_FLUSH); + if (flush || stream->zlib_stream.avail_out == 0) { + _write_base85_data (stream, + stream->zout_buf, + BUFFER_SIZE - stream->zlib_stream.avail_out); + stream->zlib_stream.next_out = stream->zout_buf; + stream->zlib_stream.avail_out = BUFFER_SIZE; + } + + finished = TRUE; + if (stream->zlib_stream.avail_in != 0) + finished = FALSE; + if (flush && ret != Z_STREAM_END) + finished = FALSE; + } while (! finished); + + stream->zlib_stream.next_in = stream->zin_buf; +} + +static void +_write_data_start (struct _data_stream *stream, uint32_t len) +{ + _write_zlib_data_start (stream); + _write_base85_data_start (stream); + + _trace_printf ("<|"); + len = to_be32 (len); + _write_base85_data (stream, (unsigned char *) &len, sizeof (len)); +} + +static void +_write_data (struct _data_stream *stream, + const void *data, + unsigned int length) +{ + unsigned int count; + const unsigned char *p = data; + + while (length) { + count = length; + if (count > BUFFER_SIZE - stream->zlib_stream.avail_in) + count = BUFFER_SIZE - stream->zlib_stream.avail_in; + memcpy (stream->zin_buf + stream->zlib_stream.avail_in, p, count); + p += count; + stream->zlib_stream.avail_in += count; + length -= count; + + if (stream->zlib_stream.avail_in == BUFFER_SIZE) + _write_zlib_data (stream, FALSE); + } +} + +static void +_write_zlib_data_end (struct _data_stream *stream) +{ + _write_zlib_data (stream, TRUE); + deflateEnd (&stream->zlib_stream); + +} + +static void +_write_base85_data_end (struct _data_stream *stream) +{ + unsigned char five_tuple[5]; + int ret; + + assert (_should_trace ()); + + if (stream->base85_pending) { + memset (stream->four_tuple + stream->base85_pending, + 0, 4 - stream->base85_pending); + _expand_four_tuple_to_five (stream->four_tuple, five_tuple); + ret = fwrite (five_tuple, stream->base85_pending+1, 1, logfile); + (void) ret; + } +} + +static void +_write_data_end (struct _data_stream *stream) +{ + _write_zlib_data_end (stream); + _write_base85_data_end (stream); + + _trace_printf ("~>"); +} + +static void +_emit_data (const void *data, unsigned int length) +{ + struct _data_stream stream; + + _write_data_start (&stream, length); + _write_data (&stream, data, length); + _write_data_end (&stream); +} + +static const char * +_format_to_string (cairo_format_t format) +{ +#define f(name) case CAIRO_FORMAT_ ## name: return #name + switch (format) { + f(INVALID); + f(RGBA128F); + f(RGB96F); + f(ARGB32); + f(RGB30); + f(RGB24); + f(RGB16_565); + f(A8); + f(A1); + } +#undef f + return "UNKNOWN_FORMAT"; +} + +static const char * +_format_to_content_string (cairo_format_t format) +{ + switch (format) { + case CAIRO_FORMAT_INVALID: + return "INVALID"; + case CAIRO_FORMAT_RGBA128F: + case CAIRO_FORMAT_ARGB32: + return "COLOR_ALPHA"; + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_RGB24: + case CAIRO_FORMAT_RGB16_565: + return "COLOR"; + case CAIRO_FORMAT_A8: + case CAIRO_FORMAT_A1: + return "ALPHA"; + } + return "UNKNOWN"; +} + +static const char * +_status_to_string (cairo_status_t status) +{ +#define f(name) case CAIRO_STATUS_ ## name: return "STATUS_" #name + switch (status) { + f(SUCCESS); + f(NO_MEMORY); + f(INVALID_RESTORE); + f(INVALID_POP_GROUP); + f(NO_CURRENT_POINT); + f(INVALID_MATRIX); + f(INVALID_STATUS); + f(NULL_POINTER); + f(INVALID_STRING); + f(INVALID_PATH_DATA); + f(READ_ERROR); + f(WRITE_ERROR); + f(SURFACE_FINISHED); + f(SURFACE_TYPE_MISMATCH); + f(PATTERN_TYPE_MISMATCH); + f(INVALID_CONTENT); + f(INVALID_FORMAT); + f(INVALID_VISUAL); + f(FILE_NOT_FOUND); + f(INVALID_DASH); + f(INVALID_DSC_COMMENT); + f(INVALID_INDEX); + f(CLIP_NOT_REPRESENTABLE); + f(TEMP_FILE_ERROR); + f(INVALID_STRIDE); + f(FONT_TYPE_MISMATCH); + f(USER_FONT_IMMUTABLE); + f(USER_FONT_ERROR); + f(NEGATIVE_COUNT); + f(INVALID_CLUSTERS); + f(INVALID_SLANT); + f(INVALID_WEIGHT); + f(INVALID_SIZE); + f(USER_FONT_NOT_IMPLEMENTED); + f(DEVICE_TYPE_MISMATCH); + f(DEVICE_ERROR); + f(INVALID_MESH_CONSTRUCTION); + f(DEVICE_FINISHED); + f(JBIG2_GLOBAL_MISSING); + f(PNG_ERROR); + f(FREETYPE_ERROR); + f(WIN32_GDI_ERROR); + f(TAG_ERROR); + f(DWRITE_ERROR); + f(SVG_FONT_ERROR); + case CAIRO_STATUS_LAST_STATUS: + break; + } + return "UNKNOWN_STATUS"; +#undef f +} + +static void CAIRO_PRINTF_FORMAT(2, 3) +_emit_image (cairo_surface_t *image, + const char *info, + ...) +{ + int stride, row, width, height; + uint32_t len; + cairo_format_t format; + uint8_t row_stack[BUFFER_SIZE]; + uint8_t *rowdata; + uint8_t *data; + struct _data_stream stream; + cairo_status_t status; + + status = DLCALL (cairo_surface_status, image); + if (status) { + _trace_printf ("<< /status //%s >> image", + _status_to_string (status)); + return; + } + + width = DLCALL (cairo_image_surface_get_width, image); + height = DLCALL (cairo_image_surface_get_height, image); + stride = DLCALL (cairo_image_surface_get_stride, image); + format = DLCALL (cairo_image_surface_get_format, image); + data = DLCALL (cairo_image_surface_get_data, image); + + _trace_printf ("dict\n" + " /width %d set\n" + " /height %d set\n" + " /format //%s set\n", + width, height, + _format_to_string (format)); + if (info != NULL) { + va_list ap; + + va_start (ap, info); + _trace_vprintf (info, ap); + va_end (ap); + } + + if (DLCALL (cairo_version) >= CAIRO_VERSION_ENCODE (1, 9, 0)) { + const char *mime_types[] = { + CAIRO_MIME_TYPE_JPEG, + CAIRO_MIME_TYPE_JP2, + CAIRO_MIME_TYPE_PNG, + NULL + }, **mime_type; + + for (mime_type = mime_types; *mime_type; mime_type++) { + const unsigned char *mime_data; + unsigned long mime_length; + + DLCALL (cairo_surface_get_mime_data, + image, *mime_type, &mime_data, &mime_length); + if (mime_data != NULL) { + _trace_printf (" /mime-type (%s) set\n" + " /source <~", + *mime_type); + _write_base85_data_start (&stream); + _write_base85_data (&stream, mime_data, mime_length); + _write_base85_data_end (&stream); + _trace_printf ("~> set\n" + " image"); + return; + } + } + } + + switch (format) { + case CAIRO_FORMAT_A1: len = (width + 7)/8; break; + case CAIRO_FORMAT_A8: len = width; break; + case CAIRO_FORMAT_RGB16_565: len = 2*width; break; + case CAIRO_FORMAT_RGB24: len = 3*width; break; + default: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_INVALID: + case CAIRO_FORMAT_ARGB32: len = 4*width; break; + case CAIRO_FORMAT_RGB96F: len = 12*width; break; + case CAIRO_FORMAT_RGBA128F: len = 16*width; break; + } + + _trace_printf (" /source "); + _write_data_start (&stream, len * height); + +#ifdef WORDS_BIGENDIAN + switch (format) { + case CAIRO_FORMAT_RGB24: + for (row = height; row--; ) { + int col; + rowdata = data; + for (col = width; col--; ) { + _write_data (&stream, rowdata, 3); + rowdata+=4; + } + data += stride; + } + break; + case CAIRO_FORMAT_A1: + case CAIRO_FORMAT_A8: + case CAIRO_FORMAT_RGB16_565: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_ARGB32: + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGBA128F: + for (row = height; row--; ) { + _write_data (&stream, data, len); + data += stride; + } + break; + case CAIRO_FORMAT_INVALID: + default: + break; + } +#else + if (stride > ARRAY_LENGTH (row_stack)) { + rowdata = malloc (stride); + if (rowdata == NULL) + goto BAIL; + } else + rowdata = row_stack; + + switch (format) { + case CAIRO_FORMAT_A1: + for (row = height; row--; ) { + int col; + for (col = 0; col < (width + 7)/8; col++) + rowdata[col] = CAIRO_BITSWAP8 (data[col]); + _write_data (&stream, rowdata, (width+7)/8); + data += stride; + } + break; + case CAIRO_FORMAT_A8: + for (row = height; row--; ) { + _write_data (&stream, data, width); + data += stride; + } + break; + case CAIRO_FORMAT_RGB16_565: /* XXX endianness */ + for (row = height; row--; ) { + uint16_t *src = (uint16_t *) data; + uint16_t *dst = (uint16_t *)rowdata; + int col; + for (col = 0; col < width; col++) + dst[col] = bswap_16 (src[col]); + _write_data (&stream, rowdata, 2*width); + data += stride; + } + break; + case CAIRO_FORMAT_RGB24: + for (row = height; row--; ) { + uint8_t *src = data; + int col; + for (col = 0; col < width; col++) { + rowdata[3*col+2] = *src++; + rowdata[3*col+1] = *src++; + rowdata[3*col+0] = *src++; + src++; + } + _write_data (&stream, rowdata, 3*width); + data += stride; + } + break; + case CAIRO_FORMAT_RGB96F: + case CAIRO_FORMAT_RGBA128F: + case CAIRO_FORMAT_RGB30: + case CAIRO_FORMAT_ARGB32: + for (row = height; row--; ) { + uint32_t *src = (uint32_t *) data; + uint32_t *dst = (uint32_t *) rowdata; + int col; + for (col = 0; col < width; col++) + dst[col] = bswap_32 (src[col]); + _write_data (&stream, rowdata, len); + data += stride; + } + break; + case CAIRO_FORMAT_INVALID: + default: + break; + } + if (rowdata != row_stack) + free (rowdata); + +BAIL: + _write_data_end (&stream); +#endif + _trace_printf (" set\n image"); +} + +static void +_encode_string_literal (char *out, int max, + const char *utf8, int len) +{ + char c; + const char *end; + + *out++ = '('; + max--; + + if (utf8 == NULL) + goto DONE; + + if (len < 0) + len = strlen (utf8); + end = utf8 + len; + + while (utf8 < end) { + if (max < 5) + break; + + switch ((c = *utf8++)) { + case '\n': + *out++ = '\\'; + *out++ = 'n'; + max -= 2; + break; + case '\r': + *out++ = '\\'; + *out++ = 'r'; + max -= 2; + break; + case '\t': + *out++ = '\\'; + *out++ = 't'; + max -= 2; + break; + case '\b': + *out++ = '\\'; + *out++ = 'b'; + max -= 2; + break; + case '\f': + *out++ = '\\'; + *out++ = 'f'; + max -= 2; + break; + case '\\': + case '(': + case ')': + *out++ = '\\'; + *out++ = c; + max -= 2; + break; + default: + if (_cairo_isprint (c)) { + *out++ = c; + } else { + int octal = 0; + while (c) { + octal *= 10; + octal += c&7; + c /= 8; + } + octal = snprintf (out, max, "\\%03d", octal); + out += octal; + max -= octal; + } + break; + } + } +DONE: + *out++ = ')'; + *out = '\0'; +} + +static void +to_octal (int value, char *buf, size_t size) +{ + do { + buf[--size] = '0' + (value & 7); + value >>= 3; + } while (size); +} + +static void +_emit_string_literal (const char *utf8, int len) +{ + char c; + const char *end; + + if (utf8 == NULL) { + _trace_printf ("()"); + return; + } + + if (len < 0) + len = strlen (utf8); + end = utf8 + len; + + _trace_printf ("("); + while (utf8 < end) { + switch ((c = *utf8++)) { + case '\n': + c = 'n'; + goto ESCAPED_CHAR; + case '\r': + c = 'r'; + goto ESCAPED_CHAR; + case '\t': + c = 't'; + goto ESCAPED_CHAR; + case '\b': + c = 'b'; + goto ESCAPED_CHAR; + case '\f': + c = 'f'; + goto ESCAPED_CHAR; + case '\\': + case '(': + case ')': +ESCAPED_CHAR: + _trace_printf ("\\%c", c); + break; + default: + if (_cairo_isprint (c)) { + _trace_printf ("%c", c); + } else { + char buf[4] = { '\\' }; + int ret_ignored; + + to_octal (c, buf+1, 3); + ret_ignored = fwrite (buf, 4, 1, logfile); + (void)ret_ignored; + } + break; + } + } + _trace_printf (")"); +} + +static void +_emit_current (Object *obj) +{ + if (obj != NULL && ! _pop_operands_to_object (obj)) { + if (obj->operand != -1) { + int n; + + _trace_printf ("%d -1 roll %% %s%ld\n", + current_stack_depth - obj->operand, + obj->type->op_code, obj->token); + + for (n = obj->operand; n < current_stack_depth - 1; n++) { + current_object[n] = current_object[n+1]; + current_object[n]->operand = n; + } + obj->operand = -1; + current_stack_depth--; + } else { + assert(obj->defined); + _trace_printf ("%s%ld\n", obj->type->op_code, obj->token); + } + + _push_object (obj); + dump_stack(__func__); + } +} + +static void +_emit_context (cairo_t *cr) +{ + _emit_current (_get_object (CONTEXT, cr)); +} + +static void +_emit_pattern (cairo_pattern_t *pattern) +{ + _emit_current (_get_object (PATTERN, pattern)); +} + +static void +_emit_surface (cairo_surface_t *surface) +{ + _emit_current (_get_object (SURFACE, surface)); +} + +static void CAIRO_PRINTF_FORMAT(2, 3) +_emit_cairo_op (cairo_t *cr, const char *fmt, ...) +{ + va_list ap; + + if (cr == NULL || ! _write_lock ()) + return; + + _emit_context (cr); + + va_start (ap, fmt); + _trace_vprintf ( fmt, ap); + va_end (ap); + + _write_unlock (); +} + +cairo_t * +cairo_create (cairo_surface_t *target) +{ + cairo_t *ret; + long surface_id; + long context_id; + + _enter_trace (); + + ret = DLCALL (cairo_create, target); + context_id = _create_context_id (ret); + + _emit_line_info (); + if (target != NULL && _write_lock ()) { + surface_id = _get_surface_id (target); + if (surface_id != -1) { + _get_object (SURFACE, target)->foreign = FALSE; + + /* we presume that we will continue to use the context */ + if (_pop_operands_to (SURFACE, target)){ + _consume_operand (false); + } else { + _trace_printf ("s%ld ", surface_id); + } + _trace_printf ("context %% c%ld\n", context_id); + _push_operand (CONTEXT, ret); + dump_stack(__func__); + } + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +void +cairo_save (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "save\n"); + DLCALL (cairo_save, cr); + _exit_trace (); +} + +void +cairo_restore (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "restore\n"); + DLCALL (cairo_restore, cr); + _exit_trace (); +} + +void +cairo_push_group (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "//COLOR_ALPHA push-group\n"); + DLCALL (cairo_push_group, cr); + _exit_trace (); +} + +static const char * +_content_to_string (cairo_content_t content) +{ + switch (content) { + case CAIRO_CONTENT_ALPHA: return "ALPHA"; + case CAIRO_CONTENT_COLOR: return "COLOR"; + default: + case CAIRO_CONTENT_COLOR_ALPHA: return "COLOR_ALPHA"; + } +} + +void +cairo_push_group_with_content (cairo_t *cr, cairo_content_t content) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "//%s push-group\n", _content_to_string (content)); + DLCALL (cairo_push_group_with_content, cr, content); + _exit_trace (); +} + +cairo_pattern_t * +cairo_pop_group (cairo_t *cr) +{ + cairo_pattern_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_pop_group, cr); + + _emit_line_info (); + _emit_cairo_op (cr, "pop-group %% p%ld\n", _create_pattern_id (ret)); + _push_operand (PATTERN, ret); + dump_stack(__func__); + + _exit_trace (); + return ret; +} + +void +cairo_pop_group_to_source (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "pop-group set-source\n"); + DLCALL (cairo_pop_group_to_source, cr); + _exit_trace (); +} + +static const char * +_operator_to_string (cairo_operator_t op) +{ +#define f(name) case CAIRO_OPERATOR_ ## name: return #name + switch (op) { + f(OVER); + f(SOURCE); + f(CLEAR); + f(IN); + f(OUT); + f(ATOP); + f(DEST); + f(DEST_OVER); + f(DEST_IN); + f(DEST_OUT); + f(DEST_ATOP); + f(XOR); + f(ADD); + f(SATURATE); + f(MULTIPLY); + f(SCREEN); + f(OVERLAY); + f(DARKEN); + f(LIGHTEN); + case CAIRO_OPERATOR_COLOR_DODGE: return "DODGE"; + case CAIRO_OPERATOR_COLOR_BURN: return "BURN"; + f(HARD_LIGHT); + f(SOFT_LIGHT); + f(DIFFERENCE); + f(EXCLUSION); + f(HSL_HUE); + f(HSL_SATURATION); + f(HSL_COLOR); + f(HSL_LUMINOSITY); + } +#undef f + return "UNKNOWN_OPERATOR"; +} + +void +cairo_set_operator (cairo_t *cr, cairo_operator_t op) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "//%s set-operator\n", _operator_to_string (op)); + DLCALL (cairo_set_operator, cr, op); + _exit_trace (); +} + +void +cairo_set_source_rgb (cairo_t *cr, double red, double green, double blue) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "%g %g %g set-source-rgb\n", red, green, blue); + DLCALL (cairo_set_source_rgb, cr, red, green, blue); + _exit_trace (); +} + +void +cairo_set_source_rgba (cairo_t *cr, double red, double green, double blue, double alpha) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "%g %g %g %g set-source-rgba\n", + red, green, blue, alpha); + DLCALL (cairo_set_source_rgba, cr, red, green, blue, alpha); + _exit_trace (); +} + +static void +_emit_source_image (cairo_surface_t *surface) +{ + Object *obj; + cairo_surface_t *image; + cairo_t *cr; + + obj = _get_object (SURFACE, surface); + if (obj == NULL) + return; + + image = DLCALL (cairo_image_surface_create, + CAIRO_FORMAT_ARGB32, + obj->width, + obj->height); + cr = DLCALL (cairo_create, image); + DLCALL (cairo_set_source_surface, cr, surface, 0, 0); + DLCALL (cairo_paint, cr); + DLCALL (cairo_destroy, cr); + + _emit_image (image, NULL); + _trace_printf (" set-source-image "); + DLCALL (cairo_surface_destroy, image); + + obj->foreign = FALSE; +} + +static void +_emit_source_image_rectangle (cairo_surface_t *surface, + int x, int y, + int width, int height) +{ + Object *obj; + cairo_surface_t *image; + cairo_t *cr; + + obj = _get_object (SURFACE, surface); + if (obj == NULL) + return; + + if (obj->foreign) { + _emit_source_image (surface); + return; + } + + image = DLCALL (cairo_image_surface_create, + CAIRO_FORMAT_ARGB32, + width, + height); + cr = DLCALL (cairo_create, image); + DLCALL (cairo_set_source_surface, cr, surface, x, y); + DLCALL (cairo_paint, cr); + DLCALL (cairo_destroy, cr); + + _emit_image (image, NULL); + _trace_printf (" %d %d set-device-offset set-source-image ", + x, y); + DLCALL (cairo_surface_destroy, image); +} + +void +cairo_set_source_surface (cairo_t *cr, cairo_surface_t *surface, double x, double y) +{ + _enter_trace (); + _emit_line_info (); + if (cr != NULL && surface != NULL && _write_lock ()) { + Object *obj = _get_object (SURFACE, surface); + + if (_is_current (SURFACE, surface, 0) && + _is_current (CONTEXT, cr, 1)) + { + _consume_operand (false); + } + else if (_is_current (SURFACE, surface, 1) && + _is_current (CONTEXT, cr, 0) && + obj->defined) + { + _trace_printf ("exch "); + _exch_operands (); + _consume_operand (false); + } else if (obj->defined) { + _emit_context (cr); + _trace_printf ("s%ld ", obj->token); + } else { + _emit_context (cr); + _trace_printf ("%d index ", + current_stack_depth - obj->operand - 1); + } + + if (obj->foreign) + _emit_source_image (surface); + + _trace_printf ("pattern"); + if (x != 0. || y != 0.) + _trace_printf (" %g %g translate", -x, -y); + + _trace_printf (" set-source\n"); + _write_unlock (); + } + + DLCALL (cairo_set_source_surface, cr, surface, x, y); + _exit_trace (); +} + +void +cairo_set_source (cairo_t *cr, cairo_pattern_t *source) +{ + _enter_trace (); + _emit_line_info (); + if (cr != NULL && source != NULL && _write_lock ()) { + Object *obj = _get_object (PATTERN, source); + cairo_bool_t need_context_and_pattern = TRUE; + + if (_is_current (PATTERN, source, 0) && + _is_current (CONTEXT, cr, 1)) + { + if (obj->defined) { + _consume_operand (false); + } else { + _trace_printf ("exch 1 index "); + _exch_operands (); + } + need_context_and_pattern = FALSE; + } + else if (_is_current (PATTERN, source, 1) && + _is_current (CONTEXT, cr, 0)) + { + if (obj->defined) { + _trace_printf ("exch "); + _exch_operands (); + _consume_operand (false); + need_context_and_pattern = FALSE; + } + } + + if (need_context_and_pattern) { + _emit_context (cr); + _emit_pattern_id (source); + } + + _trace_printf ("set-source %% p%ld\n", obj->token); + _write_unlock (); + } + + DLCALL (cairo_set_source, cr, source); + _exit_trace (); +} + +cairo_pattern_t * +cairo_get_source (cairo_t *cr) +{ + cairo_pattern_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_get_source, cr); + + if (! _has_pattern_id (ret)) { + _emit_cairo_op (cr, "/source get /p%ld exch def\n", + _create_pattern_id (ret)); + _get_object (PATTERN, ret)->defined = TRUE; + } + + _exit_trace (); + return ret; +} + +void +cairo_set_tolerance (cairo_t *cr, double tolerance) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "%g set-tolerance\n", tolerance); + DLCALL (cairo_set_tolerance, cr, tolerance); + _exit_trace (); +} + +static const char * +_antialias_to_string (cairo_antialias_t antialias) +{ +#define f(name) case CAIRO_ANTIALIAS_ ## name: return "ANTIALIAS_" #name + switch (antialias) { + f(DEFAULT); + + f(NONE); + f(GRAY); + f(SUBPIXEL); + + f(FAST); + f(GOOD); + f(BEST); + }; +#undef f + return "UNKNOWN_ANTIALIAS"; +} + +void +cairo_set_antialias (cairo_t *cr, cairo_antialias_t antialias) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, + "//%s set-antialias\n", _antialias_to_string (antialias)); + DLCALL (cairo_set_antialias, cr, antialias); + _exit_trace (); +} + +static const char * +_fill_rule_to_string (cairo_fill_rule_t rule) +{ +#define f(name) case CAIRO_FILL_RULE_ ## name: return #name + switch (rule) { + f(WINDING); + f(EVEN_ODD); + }; +#undef f + return "UNKNOWN_FILL_RULE"; +} + +void +cairo_set_fill_rule (cairo_t *cr, cairo_fill_rule_t fill_rule) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, + "//%s set-fill-rule\n", _fill_rule_to_string (fill_rule)); + DLCALL (cairo_set_fill_rule, cr, fill_rule); + _exit_trace (); +} + +void +cairo_set_line_width (cairo_t *cr, double width) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "%g set-line-width\n", width); + DLCALL (cairo_set_line_width, cr, width); + _exit_trace (); +} + +static const char * +_line_cap_to_string (cairo_line_cap_t line_cap) +{ +#define f(name) case CAIRO_LINE_CAP_ ## name: return "LINE_CAP_" #name + switch (line_cap) { + f(BUTT); + f(ROUND); + f(SQUARE); + }; +#undef f + return "UNKNOWN_LINE_CAP"; +} + +void +cairo_set_line_cap (cairo_t *cr, cairo_line_cap_t line_cap) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "//%s set-line-cap\n", _line_cap_to_string (line_cap)); + DLCALL (cairo_set_line_cap, cr, line_cap); + _exit_trace (); +} + +static const char * +_line_join_to_string (cairo_line_join_t line_join) +{ +#define f(name) case CAIRO_LINE_JOIN_ ## name: return "LINE_JOIN_" #name + switch (line_join) { + f(MITER); + f(ROUND); + f(BEVEL); + }; +#undef f + return "UNKNOWN_LINE_JOIN"; +} + +void +cairo_set_line_join (cairo_t *cr, cairo_line_join_t line_join) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, + "//%s set-line-join\n", _line_join_to_string (line_join)); + DLCALL (cairo_set_line_join, cr, line_join); + _exit_trace (); +} + +void +cairo_set_dash (cairo_t *cr, const double *dashes, int num_dashes, double offset) +{ + _enter_trace (); + _emit_line_info (); + if (cr != NULL && _write_lock ()) { + int n; + + _emit_context (cr); + + _trace_printf ("["); + for (n = 0; n < num_dashes; n++) { + if (n != 0) + _trace_printf (" "); + _trace_printf ("%g", dashes[n]); + } + _trace_printf ("] %g set-dash\n", offset); + + _write_unlock (); + } + + DLCALL (cairo_set_dash, cr, dashes, num_dashes, offset); + _exit_trace (); +} + +void +cairo_set_miter_limit (cairo_t *cr, double limit) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "%g set-miter-limit\n", limit); + DLCALL (cairo_set_miter_limit, cr, limit); + _exit_trace (); +} + +void +cairo_translate (cairo_t *cr, double tx, double ty) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "%g %g translate\n", tx, ty); + DLCALL (cairo_translate, cr, tx, ty); + _exit_trace (); +} + +void +cairo_scale (cairo_t *cr, double sx, double sy) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "%g %g scale\n", sx, sy); + DLCALL (cairo_scale, cr, sx, sy); + _exit_trace (); +} + +void +cairo_rotate (cairo_t *cr, double angle) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "%g rotate\n", angle); + DLCALL (cairo_rotate, cr, angle); + _exit_trace (); +} + +void +cairo_transform (cairo_t *cr, const cairo_matrix_t *matrix) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "%g %g %g %g %g %g matrix transform\n", + matrix->xx, matrix->yx, + matrix->xy, matrix->yy, + matrix->x0, matrix->y0); + DLCALL (cairo_transform, cr, matrix); + _exit_trace (); +} + +void +cairo_set_matrix (cairo_t *cr, const cairo_matrix_t *matrix) +{ + _enter_trace (); + _emit_line_info (); + if (_matrix_is_identity (matrix)) { + _emit_cairo_op (cr, "identity set-matrix\n"); + } else { + _emit_cairo_op (cr, "%g %g %g %g %g %g matrix set-matrix\n", + matrix->xx, matrix->yx, + matrix->xy, matrix->yy, + matrix->x0, matrix->y0); + } + DLCALL (cairo_set_matrix, cr, matrix); + _exit_trace (); +} + +cairo_surface_t * +cairo_get_target (cairo_t *cr) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_get_target, cr); + if (cr != NULL) { + Object *obj = _create_surface (ret); + + if (! obj->defined) { + _emit_cairo_op (cr, + "/target get /s%ld exch def\n", + obj->token); + obj->defined = TRUE; + } + } + + _exit_trace (); + return ret; +} + +cairo_surface_t * +cairo_get_group_target (cairo_t *cr) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_get_group_target, cr); + if (cr != NULL) { + Object *obj = _create_surface (ret); + + if (! obj->defined) { + _emit_cairo_op (cr, + "/group-target get /s%ld exch def\n", + obj->token); + obj->defined = TRUE; + } + } + + _exit_trace (); + return ret; +} + +void +cairo_identity_matrix (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "identity set-matrix\n"); + DLCALL (cairo_identity_matrix, cr); + _exit_trace (); +} + +void +cairo_new_path (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "n "); + DLCALL (cairo_new_path, cr); + _exit_trace (); +} + +void +cairo_move_to (cairo_t *cr, double x, double y) +{ + _enter_trace (); + _emit_cairo_op (cr, "%g %g m ", x, y); + DLCALL (cairo_move_to, cr, x, y); + _exit_trace (); +} + +void +cairo_new_sub_path (cairo_t *cr) +{ + _enter_trace (); + _emit_cairo_op (cr, "N "); + DLCALL (cairo_new_sub_path, cr); + _exit_trace (); +} + +void +cairo_line_to (cairo_t *cr, double x, double y) +{ + _enter_trace (); + _emit_cairo_op (cr, "%g %g l ", x, y); + DLCALL (cairo_line_to, cr, x, y); + _exit_trace (); +} + +void +cairo_curve_to (cairo_t *cr, double x1, double y1, double x2, double y2, double x3, double y3) +{ + _enter_trace (); + _emit_cairo_op (cr, "%g %g %g %g %g %g c ", x1, y1, x2, y2, x3, y3); + DLCALL (cairo_curve_to, cr, x1, y1, x2, y2, x3, y3); + _exit_trace (); +} + +void +cairo_arc (cairo_t *cr, double xc, double yc, double radius, double angle1, double angle2) +{ + _enter_trace (); + _emit_cairo_op (cr, "%g %g %g %g %g arc\n", xc, yc, radius, angle1, angle2); + DLCALL (cairo_arc, cr, xc, yc, radius, angle1, angle2); + _exit_trace (); +} + +void +cairo_arc_negative (cairo_t *cr, double xc, double yc, double radius, double angle1, double angle2) +{ + _enter_trace (); + _emit_cairo_op (cr, "%g %g %g %g %g arc-\n", + xc, yc, radius, angle1, angle2); + DLCALL (cairo_arc_negative, cr, xc, yc, radius, angle1, angle2); + _exit_trace (); +} + +void +cairo_rel_move_to (cairo_t *cr, double dx, double dy) +{ + _enter_trace (); + _emit_cairo_op (cr, "%g %g M ", dx, dy); + DLCALL (cairo_rel_move_to, cr, dx, dy); + _exit_trace (); +} + +void +cairo_rel_line_to (cairo_t *cr, double dx, double dy) +{ + _enter_trace (); + _emit_cairo_op (cr, "%g %g L ", dx, dy); + DLCALL (cairo_rel_line_to, cr, dx, dy); + _exit_trace (); +} + +void +cairo_rel_curve_to (cairo_t *cr, double dx1, double dy1, double dx2, double dy2, double dx3, double dy3) +{ + _enter_trace (); + _emit_cairo_op (cr, "%g %g %g %g %g %g C ", + dx1, dy1, dx2, dy2, dx3, dy3); + DLCALL (cairo_rel_curve_to, cr, dx1, dy1, dx2, dy2, dx3, dy3); + _exit_trace (); +} + +void +cairo_rectangle (cairo_t *cr, double x, double y, double width, double height) +{ + _enter_trace (); + _emit_cairo_op (cr, "%g %g %g %g rectangle\n", x, y, width, height); + DLCALL (cairo_rectangle, cr, x, y, width, height); + _exit_trace (); +} + +void +cairo_close_path (cairo_t *cr) +{ + _enter_trace (); + _emit_cairo_op (cr, "h\n"); + DLCALL (cairo_close_path, cr); + _exit_trace (); +} + +void +cairo_paint (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "paint\n"); + DLCALL (cairo_paint, cr); + _exit_trace (); +} + +void +cairo_paint_with_alpha (cairo_t *cr, double alpha) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "%g paint-with-alpha\n", alpha); + DLCALL (cairo_paint_with_alpha, cr, alpha); + _exit_trace (); +} + +void +cairo_mask (cairo_t *cr, cairo_pattern_t *pattern) +{ + _enter_trace (); + _emit_line_info (); + if (cr != NULL && pattern != NULL && _write_lock ()) { + Object *obj = _get_object (PATTERN, pattern); + cairo_bool_t need_context_and_pattern = TRUE; + + if (_is_current (PATTERN, pattern, 0) && + _is_current (CONTEXT, cr, 1)) + { + if (obj->defined) { + _consume_operand (false); + need_context_and_pattern = FALSE; + } + } + else if (_is_current (PATTERN, pattern, 1) && + _is_current (CONTEXT, cr, 0)) + { + if (obj->defined) { + _trace_printf ("exch "); + _exch_operands (); + _consume_operand (false); + need_context_and_pattern = FALSE; + } + } + + if (need_context_and_pattern) { + _emit_context (cr); + _emit_pattern_id (pattern); + } + + _trace_printf (" mask\n"); + _write_unlock (); + } + DLCALL (cairo_mask, cr, pattern); + _exit_trace (); +} + +void +cairo_mask_surface (cairo_t *cr, cairo_surface_t *surface, double x, double y) +{ + _enter_trace (); + _emit_line_info (); + if (cr != NULL && surface != NULL && _write_lock ()) { + Object *obj = _get_object (SURFACE, surface); + if (_is_current (SURFACE, surface, 0) && + _is_current (CONTEXT, cr, 1)) + { + _consume_operand (false); + } + else if (_is_current (SURFACE, surface, 1) && + _is_current (CONTEXT, cr, 0)) + { + _trace_printf ("exch "); + _exch_operands (); + _consume_operand (false); + } else if (obj->defined){ + _emit_context (cr); + _trace_printf ("s%ld ", obj->token); + } else { + _emit_context (cr); + _trace_printf ("%d index ", + current_stack_depth - obj->operand - 1); + } + _trace_printf ("pattern"); + + if (x != 0. || y != 0.) + _trace_printf (" %g %g translate", -x, -y); + + _trace_printf (" mask\n"); + _write_unlock (); + } + + DLCALL (cairo_mask_surface, cr, surface, x, y); + _exit_trace (); +} + +void +cairo_stroke (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "stroke\n"); + DLCALL (cairo_stroke, cr); + _exit_trace (); +} + +void +cairo_stroke_preserve (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "stroke+\n"); + DLCALL (cairo_stroke_preserve, cr); + _exit_trace (); +} + +void +cairo_fill (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "fill\n"); + DLCALL (cairo_fill, cr); + _exit_trace (); +} + +void +cairo_fill_preserve (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "fill+\n"); + DLCALL (cairo_fill_preserve, cr); + _exit_trace (); +} + +void +cairo_copy_page (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "copy-page\n"); + DLCALL (cairo_copy_page, cr); + _exit_trace (); +} + +void +cairo_show_page (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "show-page\n"); + DLCALL (cairo_show_page, cr); + _exit_trace (); +} + +void +cairo_clip (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "clip\n"); + DLCALL (cairo_clip, cr); + _exit_trace (); +} + +void +cairo_clip_preserve (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "clip+\n"); + DLCALL (cairo_clip_preserve, cr); + _exit_trace (); +} + +void +cairo_reset_clip (cairo_t *cr) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "reset-clip\n"); + DLCALL (cairo_reset_clip, cr); + _exit_trace (); +} + + +static const char * +_slant_to_string (cairo_font_slant_t font_slant) +{ +#define f(name) case CAIRO_FONT_SLANT_ ## name: return "SLANT_" #name + switch (font_slant) { + f(NORMAL); + f(ITALIC); + f(OBLIQUE); + }; +#undef f + return "UNKNOWN_SLANT"; +} + +static const char * +_weight_to_string (cairo_font_weight_t font_weight) +{ +#define f(name) case CAIRO_FONT_WEIGHT_ ## name: return "WEIGHT_" #name + switch (font_weight) { + f(NORMAL); + f(BOLD); + }; +#undef f + return "UNKNOWN_WEIGHT"; +} + +void +cairo_select_font_face (cairo_t *cr, const char *family, cairo_font_slant_t slant, cairo_font_weight_t weight) +{ + _enter_trace (); + _emit_line_info (); + if (cr != NULL && _write_lock ()) { + _emit_context (cr); + _emit_string_literal (family, -1); + _trace_printf (" //%s //%s select-font-face\n", + _slant_to_string (slant), + _weight_to_string (weight)); + _write_unlock (); + } + DLCALL (cairo_select_font_face, cr, family, slant, weight); + _exit_trace (); +} + +cairo_font_face_t * +cairo_get_font_face (cairo_t *cr) +{ + cairo_font_face_t *ret; + long font_face_id; + + _enter_trace (); + + ret = DLCALL (cairo_get_font_face, cr); + font_face_id = _create_font_face_id (ret); + + _emit_cairo_op (cr, "/font-face get %% f%ld\n", font_face_id); + _push_operand (FONT_FACE, ret); + dump_stack(__func__); + + _exit_trace (); + return ret; +} + +void +cairo_set_font_face (cairo_t *cr, cairo_font_face_t *font_face) +{ + _enter_trace (); + _emit_line_info (); + if (cr != NULL && font_face != NULL && _write_lock ()) { + if (_is_current (FONT_FACE, font_face, 0) && + _is_current (CONTEXT, cr, 1)) + { + _consume_operand (false); + } + else if (_is_current (FONT_FACE, font_face, 1) && + _is_current (CONTEXT, cr, 0)) + { + _trace_printf ("exch "); + _exch_operands (); + _consume_operand (false); + } + else + { + _emit_context (cr); + _emit_font_face_id (font_face); + } + + _trace_printf ("set-font-face\n"); + _write_unlock (); + } + + DLCALL (cairo_set_font_face, cr, font_face); + _exit_trace (); +} + +void +cairo_set_font_size (cairo_t *cr, double size) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "%g set-font-size\n", size); + DLCALL (cairo_set_font_size, cr, size); + _exit_trace (); +} + +void +cairo_set_font_matrix (cairo_t *cr, const cairo_matrix_t *matrix) +{ + _enter_trace (); + _emit_line_info (); + _emit_cairo_op (cr, "%g %g %g %g %g %g matrix set-font-matrix\n", + matrix->xx, matrix->yx, + matrix->xy, matrix->yy, + matrix->x0, matrix->y0); + DLCALL (cairo_set_font_matrix, cr, matrix); + _exit_trace (); +} + +static const char * +_subpixel_order_to_string (cairo_subpixel_order_t subpixel_order) +{ +#define f(name) case CAIRO_SUBPIXEL_ORDER_ ## name: return "SUBPIXEL_ORDER_" #name + switch (subpixel_order) { + f(DEFAULT); + f(RGB); + f(BGR); + f(VRGB); + f(VBGR); + }; +#undef f + return "UNKNOWN_SUBPIXEL_ORDER"; +} + +static const char * +_hint_style_to_string (cairo_hint_style_t hint_style) +{ +#define f(name) case CAIRO_HINT_STYLE_ ## name: return "HINT_STYLE_" #name + switch (hint_style) { + f(DEFAULT); + f(NONE); + f(SLIGHT); + f(MEDIUM); + f(FULL); + }; +#undef f + return "UNKNOWN_HINT_STYLE"; +} + +static const char * +_hint_metrics_to_string (cairo_hint_metrics_t hint_metrics) +{ +#define f(name) case CAIRO_HINT_METRICS_ ## name: return "HINT_METRICS_" #name + switch (hint_metrics) { + f(DEFAULT); + f(OFF); + f(ON); + }; +#undef f + return "UNKNOWN_HINT_METRICS"; +} + +static void +_emit_font_options (const cairo_font_options_t *options) +{ + cairo_antialias_t antialias; + cairo_subpixel_order_t subpixel_order; + cairo_hint_style_t hint_style; + cairo_hint_metrics_t hint_metrics; + + _trace_printf ("<<"); + + antialias = DLCALL (cairo_font_options_get_antialias, options); + if (antialias != CAIRO_ANTIALIAS_DEFAULT) { + _trace_printf (" /antialias //%s", + _antialias_to_string (antialias)); + } + + subpixel_order = DLCALL (cairo_font_options_get_subpixel_order, options); + if (subpixel_order != CAIRO_SUBPIXEL_ORDER_DEFAULT) { + _trace_printf (" /subpixel-order //%s", + _subpixel_order_to_string (subpixel_order)); + } + + hint_style = DLCALL (cairo_font_options_get_hint_style, options); + if (hint_style != CAIRO_HINT_STYLE_DEFAULT) { + _trace_printf (" /hint-style //%s", + _hint_style_to_string (hint_style)); + } + + hint_metrics = DLCALL (cairo_font_options_get_hint_metrics, options); + if (hint_metrics != CAIRO_HINT_METRICS_DEFAULT) { + _trace_printf (" /hint-metrics //%s", + _hint_metrics_to_string (hint_metrics)); + } + + _trace_printf (" >>"); +} + +void +cairo_set_font_options (cairo_t *cr, const cairo_font_options_t *options) +{ + _enter_trace (); + _emit_line_info (); + if (cr != NULL && options != NULL && _write_lock ()) { + _emit_context (cr); + _emit_font_options (options); + _trace_printf (" set-font-options\n"); + _write_unlock (); + } + + DLCALL (cairo_set_font_options, cr, options); + _exit_trace (); +} + +cairo_scaled_font_t * +cairo_get_scaled_font (cairo_t *cr) +{ + cairo_scaled_font_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_get_scaled_font, cr); + + if (cr != NULL && ! _has_scaled_font_id (ret)) { + _emit_cairo_op (cr, "/scaled-font get /sf%ld exch def\n", + _create_scaled_font_id (ret)); + _get_object (SCALED_FONT, ret)->defined = TRUE; + } + + _exit_trace (); + return ret; +} + +void +cairo_set_scaled_font (cairo_t *cr, const cairo_scaled_font_t *scaled_font) +{ + _enter_trace (); + _emit_line_info (); + if (cr != NULL && scaled_font != NULL && _write_lock ()) { + Object *obj = _get_object (SCALED_FONT, scaled_font); + cairo_bool_t need_context_and_font = TRUE; + + if (_is_current (SCALED_FONT, scaled_font, 0) && + _is_current (CONTEXT, cr, 1)) + { + if (obj->defined) { + _consume_operand (false); + } else { + _trace_printf ("exch 1 index "); + _exch_operands (); + } + need_context_and_font = FALSE; + } + else if (_is_current (SCALED_FONT, scaled_font, 1) && + _is_current (CONTEXT, cr, 0)) + { + if (obj->defined) { + _trace_printf ("exch "); + _exch_operands (); + _consume_operand (false); + need_context_and_font = FALSE; + } + } + + if (need_context_and_font) { + _emit_context (cr); + _emit_scaled_font_id (scaled_font); + } + + _trace_printf ("set-scaled-font\n"); + + _write_unlock (); + } + DLCALL (cairo_set_scaled_font, cr, scaled_font); + _exit_trace (); +} + +static void +_emit_matrix (const cairo_matrix_t *m) +{ + if (_matrix_is_identity(m)) + { + _trace_printf ("identity"); + } + else + { + _trace_printf ("%g %g %g %g %g %g matrix", + m->xx, m->yx, + m->xy, m->yy, + m->x0, m->y0); + } +} + +cairo_scaled_font_t * +cairo_scaled_font_create (cairo_font_face_t *font_face, + const cairo_matrix_t *font_matrix, + const cairo_matrix_t *ctm, + const cairo_font_options_t *options) +{ + cairo_scaled_font_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_scaled_font_create, font_face, font_matrix, ctm, options); + if (_has_scaled_font_id (ret)) + goto out; + + _emit_line_info (); + if (font_face != NULL && + font_matrix != NULL && + ctm != NULL && + options != NULL + && _write_lock ()) + { + Object *obj; + + obj = _type_object_create (SCALED_FONT, ret); + DLCALL (cairo_scaled_font_set_user_data, + ret, &destroy_key, obj, _object_undef); + + if (_pop_operands_to (FONT_FACE, font_face)) + _consume_operand (false); + else + _trace_printf ("f%ld ", _get_font_face_id (font_face)); + + _emit_matrix (font_matrix); + _trace_printf (" "); + + _emit_matrix (ctm); + _trace_printf (" "); + + _emit_font_options (options); + + _trace_printf (" scaled-font /sf%ld exch def\n", + obj->token); + obj->defined = TRUE; + + _write_unlock (); + } + +out: + _exit_trace (); + return ret; +} + +void +cairo_show_text (cairo_t *cr, const char *utf8) +{ + _enter_trace (); + _emit_line_info (); + if (cr != NULL && _write_lock ()) { + _emit_context (cr); + _emit_string_literal (utf8, -1); + _trace_printf (" show-text\n"); + _write_unlock (); + } + DLCALL (cairo_show_text, cr, utf8); + _exit_trace (); +} + +static void +_glyph_advance (cairo_scaled_font_t *font, + const cairo_glyph_t *glyph, + double *x, double *y) +{ + cairo_text_extents_t extents; + + DLCALL (cairo_scaled_font_glyph_extents, font, glyph, 1, &extents); + *x += extents.x_advance; + *y += extents.y_advance; +} + +#define TOLERANCE 1e-5 +static void +_emit_glyphs (cairo_scaled_font_t *font, + const cairo_glyph_t *glyphs, + int num_glyphs) +{ + double x,y; + int n; + + if (num_glyphs == 0) { + _trace_printf ("[]"); + return; + } + + for (n = 0; n < num_glyphs; n++) { + if (glyphs[n].index > 255) + break; + } + + x = glyphs->x; + y = glyphs->y; + if (n < num_glyphs) { /* need full glyph range */ + cairo_bool_t first; + + _trace_printf ("[%g %g [", x, y); + first = TRUE; + while (num_glyphs--) { + if (fabs (glyphs->x - x) > TOLERANCE || + fabs (glyphs->y - y) > TOLERANCE) + { + x = glyphs->x; + y = glyphs->y; + _trace_printf ("] %g %g [", x, y); + first = TRUE; + } + + if (! first) + _trace_printf (" "); + _trace_printf ("%lu", glyphs->index); + first = FALSE; + + _glyph_advance (font, glyphs, &x, &y); + glyphs++; + } + _trace_printf ("]]"); + } else { + struct _data_stream stream; + + if (num_glyphs == 1) { + _trace_printf ("[%g %g <%02lx>]", x, y, glyphs->index); + } else { + _trace_printf ("[%g %g <~", x, y); + _write_base85_data_start (&stream); + while (num_glyphs--) { + unsigned char c; + + if (fabs (glyphs->x - x) > TOLERANCE || + fabs (glyphs->y - y) > TOLERANCE) + { + x = glyphs->x; + y = glyphs->y; + _write_base85_data_end (&stream); + _trace_printf ("~> %g %g <~", x, y); + _write_base85_data_start (&stream); + } + + c = glyphs->index; + _write_base85_data (&stream, &c, 1); + + _glyph_advance (font, glyphs, &x, &y); + glyphs++; + } + _write_base85_data_end (&stream); + _trace_printf ("~>]"); + } + } +} + +void +cairo_show_glyphs (cairo_t *cr, const cairo_glyph_t *glyphs, int num_glyphs) +{ + _enter_trace (); + _emit_line_info (); + if (cr != NULL && glyphs != NULL && _write_lock ()) { + cairo_scaled_font_t *font; + + _emit_context (cr); + font = DLCALL (cairo_get_scaled_font, cr); + + _emit_glyphs (font, glyphs, num_glyphs); + _trace_printf (" show-glyphs\n"); + _write_unlock (); + } + + DLCALL (cairo_show_glyphs, cr, glyphs, num_glyphs); + _exit_trace (); +} + +static const char * +_direction_to_string (cairo_bool_t backward) +{ + const char *names[] = { + "FORWARD", + "BACKWARD" + }; + return names[!!backward]; +} + +void +cairo_show_text_glyphs (cairo_t *cr, + const char *utf8, + int utf8_len, + const cairo_glyph_t *glyphs, + int num_glyphs, + const cairo_text_cluster_t *clusters, + int num_clusters, + cairo_text_cluster_flags_t backward) +{ + cairo_scaled_font_t *font; + + _enter_trace (); + + font = DLCALL (cairo_get_scaled_font, cr); + + _emit_line_info (); + if (cr != NULL && glyphs != NULL && clusters != NULL && _write_lock ()) { + int n; + + _emit_context (cr); + + _emit_string_literal (utf8, utf8_len); + + _emit_glyphs (font, glyphs, num_glyphs); + _trace_printf (" ["); + for (n = 0; n < num_clusters; n++) { + _trace_printf (" %d %d", + clusters[n].num_bytes, + clusters[n].num_glyphs); + } + _trace_printf (" ] //%s show-text-glyphs\n", + _direction_to_string (backward)); + + _write_unlock (); + } + + DLCALL (cairo_show_text_glyphs, cr, + utf8, utf8_len, + glyphs, num_glyphs, + clusters, num_clusters, + backward); + _exit_trace (); +} + +void +cairo_text_path (cairo_t *cr, const char *utf8) +{ + _enter_trace (); + _emit_line_info (); + if (cr != NULL && _write_lock ()) { + _emit_context (cr); + _emit_string_literal (utf8, -1); + _trace_printf (" text-path\n"); + _write_unlock (); + } + DLCALL (cairo_text_path, cr, utf8); + _exit_trace (); +} + +void +cairo_glyph_path (cairo_t *cr, const cairo_glyph_t *glyphs, int num_glyphs) +{ + cairo_scaled_font_t *font; + + _enter_trace (); + + font = DLCALL (cairo_get_scaled_font, cr); + + _emit_line_info (); + if (cr != NULL && glyphs != NULL && _write_lock ()) { + _emit_context (cr); + _emit_glyphs (font, glyphs, num_glyphs); + _trace_printf (" glyph-path\n"); + + _write_unlock (); + } + + DLCALL (cairo_glyph_path, cr, glyphs, num_glyphs); + _exit_trace (); +} + +void +cairo_append_path (cairo_t *cr, const cairo_path_t *path) +{ + /* XXX no support for named paths, so manually reconstruct */ + int i; + cairo_path_data_t *p; + + _enter_trace (); + + _emit_line_info (); + if (cr == NULL || path == NULL) { + DLCALL (cairo_append_path, cr, path); + _exit_trace (); + return; + } + + for (i=0; i < path->num_data; i += path->data[i].header.length) { + p = &path->data[i]; + switch (p->header.type) { + case CAIRO_PATH_MOVE_TO: + if (p->header.length >= 2) + cairo_move_to (cr, p[1].point.x, p[1].point.y); + break; + case CAIRO_PATH_LINE_TO: + if (p->header.length >= 2) + cairo_line_to (cr, p[1].point.x, p[1].point.y); + break; + case CAIRO_PATH_CURVE_TO: + if (p->header.length >= 4) + cairo_curve_to (cr, + p[1].point.x, p[1].point.y, + p[2].point.x, p[2].point.y, + p[3].point.x, p[3].point.y); + break; + case CAIRO_PATH_CLOSE_PATH: + if (p->header.length >= 1) + cairo_close_path (cr); + break; + default: + break; + } + } + _exit_trace (); +} + +cairo_surface_t * +cairo_image_surface_create (cairo_format_t format, int width, int height) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_image_surface_create, format, width, height); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + const char *format_str = _format_to_string (format); + const char *content_str = _format_to_content_string (format); + + _trace_printf ("dict\n" + " /width %d set\n" + " /height %d set\n" + " /format //%s set\n" + " /content //%s set\n" + " image dup /s%ld exch def\n", + width, height, format_str, content_str, obj->token); + obj->width = width; + obj->height = height; + obj->defined = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_surface_t * +cairo_image_surface_create_for_data (unsigned char *data, cairo_format_t format, int width, int height, int stride) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_image_surface_create_for_data, data, format, width, height, stride); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + /* cairo_image_surface_create_for_data() is both used to supply + * foreign pixel data to cairo and in order to read pixels back. + * Defer grabbing the pixel contents until we have to, but only for + * "large" images, for small images the overhead of embedding pixels + * is negligible. + * + * Choose 32x32 as that captures most icons which thanks to GdkPixbuf + * are frequently reloaded. + */ + if (width * height < 32*32) { + _emit_image (ret, NULL); + _trace_printf (" dup /s%ld exch def\n", + obj->token); + } else { + _trace_printf ("dict\n" + " /width %d set\n" + " /height %d set\n" + " /format //%s set\n" + " image dup /s%ld exch def\n", + width, height, + _format_to_string (format), + obj->token); + + obj->foreign = TRUE; + } + + obj->width = width; + obj->height = height; + obj->defined = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +unsigned char * +cairo_image_surface_get_data (cairo_surface_t *surface) +{ + unsigned char *ptr; + + /* Just leave some breadcrumbs */ + _enter_trace (); + _emit_line_info (); + if (surface != NULL && _write_lock ()) { + _trace_printf ("%% s%ld get-data\n", _get_surface_id (surface)); + _write_unlock (); + } + ptr = DLCALL (cairo_image_surface_get_data, surface); + _exit_trace (); + + return ptr; +} + +cairo_pattern_t * +cairo_pattern_create_raster_source (void *data, cairo_content_t content, int width, int height) +{ + cairo_pattern_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_pattern_create_raster_source, data, content, width, height); + + _emit_line_info (); + if (_write_lock ()) { + long pattern_id = _create_pattern_id (ret); + cairo_format_t format; + cairo_surface_t *image; + cairo_t *cr; + + /* Impossible to accurately record the interaction with this custom + * pattern so just suck all the data into an image upfront */ + switch (content) { + case CAIRO_CONTENT_ALPHA: format = CAIRO_FORMAT_A8; break; + case CAIRO_CONTENT_COLOR: format = CAIRO_FORMAT_RGB24; break; + default: + case CAIRO_CONTENT_COLOR_ALPHA: format = CAIRO_FORMAT_ARGB32; break; + } + + _trace_printf ("%% raster-source\n"); + + image = DLCALL (cairo_image_surface_create, format, width, height); + cr = DLCALL (cairo_create, image); + DLCALL (cairo_set_source, cr, ret); + DLCALL (cairo_paint, cr); + DLCALL (cairo_destroy, cr); + + _emit_image (image, NULL); + DLCALL (cairo_surface_destroy, image); + _trace_printf (" pattern dup /s%ld exch def\n", + pattern_id); + + _push_operand (PATTERN, ret); + _get_object (PATTERN, ret)->defined = TRUE; + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_surface_t * +cairo_surface_create_similar (cairo_surface_t *other, + cairo_content_t content, + int width, int height) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_surface_create_similar, other, content, width, height); + + _emit_line_info (); + if (other != NULL && _write_lock ()) { + Object *other_obj = _get_object(SURFACE, other); + Object *new_obj = _create_surface (ret); + + if (other_obj->operand != -1) { + if (current_stack_depth == other_obj->operand + 1) + _trace_printf ("dup "); + else + _trace_printf ("%d index ", + current_stack_depth - other_obj->operand - 1); + } else { + assert(other_obj->defined); + _trace_printf ("s%ld ", other_obj->token); + } + + _trace_printf ("%d %d //%s similar dup /s%ld exch def\n", + width, height, + _content_to_string (content), + new_obj->token); + + new_obj->width = width; + new_obj->height = height; + new_obj->defined = TRUE; + + _push_object (new_obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_surface_t * +cairo_surface_create_similar_image (cairo_surface_t *other, + cairo_format_t format, + int width, int height) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_surface_create_similar_image, + other, format, width, height); + + _emit_line_info (); + if (other != NULL && _write_lock ()) { + Object *other_obj = _get_object(SURFACE, other); + Object *new_obj = _create_surface (ret); + + if (other_obj->defined) + _trace_printf ("s%ld ", other_obj->token); + else if (current_stack_depth == other_obj->operand + 1) + _trace_printf ("dup "); + else + _trace_printf ("%d index ", + current_stack_depth - other_obj->operand - 1); + _trace_printf ("//%s %d %d similar-image %% s%ld\n", + _format_to_string (format), + width, height, + new_obj->token); + new_obj->width = width; + new_obj->height = height; + + _push_object (new_obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_surface_t * +cairo_surface_map_to_image (cairo_surface_t *surface, + const cairo_rectangle_int_t *extents) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_surface_map_to_image, surface, extents); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _emit_surface (surface); + if (extents) { + _trace_printf ("[%d %d %d %d] map-to-image %% s%ld\n", + extents->x, extents->y, + extents->width, extents->height, + obj->token); + obj->width = extents->width; + obj->height = extents->height; + } else { + _trace_printf ("[ ] map-to-image %% s%ld\n", obj->token); + } + + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +void +cairo_surface_unmap_image (cairo_surface_t *surface, + cairo_surface_t *image) +{ + _enter_trace (); + + _emit_line_info (); + if (_write_lock ()) { + Object *s = _get_object (SURFACE, surface); + Object *i = _get_object (SURFACE, image); + if (!(s->operand == current_stack_depth - 2 && + i->operand == current_stack_depth - 1)) { + if (i->operand != s->operand + 1 || ! _pop_operands_to_depth (i->operand + 1)) { + _emit_surface (surface); + _emit_surface (image); + } + } + _trace_printf ("unmap-image\n"); + _consume_operand (true); + _write_unlock (); + } + + DLCALL (cairo_surface_unmap_image, surface, image); + + _exit_trace (); +} + +cairo_surface_t * +cairo_surface_create_for_rectangle (cairo_surface_t *target, + double x, double y, + double width, double height) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_surface_create_for_rectangle, target, x, y, width, height); + + _emit_line_info (); + if (target != NULL && _write_lock ()) { + Object *target_obj = _get_object (SURFACE, target); + Object *child_obj = _create_surface (ret); + + if (target_obj->defined) + _trace_printf ("s%ld ", target_obj->token); + else if (current_stack_depth == target_obj->operand + 1) + _trace_printf ("dup "); + else + _trace_printf ("%d index ", current_stack_depth - target_obj->operand - 1); + _trace_printf ("%f %f %f %f subsurface %% s%ld\n", + x, y, width, height, + child_obj->token); + + _push_object (child_obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +static void CAIRO_PRINTF_FORMAT(2, 3) +_emit_surface_op (cairo_surface_t *surface, const char *fmt, ...) +{ + va_list ap; + + if (surface == NULL || ! _write_lock ()) + return; + + _emit_surface (surface); + + va_start (ap, fmt); + _trace_vprintf ( fmt, ap); + va_end (ap); + + _write_unlock (); +} + +void +cairo_surface_finish (cairo_surface_t *surface) +{ + _enter_trace (); + _emit_line_info (); + DLCALL (cairo_surface_finish, surface); + _exit_trace (); +} + +void +cairo_surface_flush (cairo_surface_t *surface) +{ + _enter_trace (); + _emit_line_info (); + if (surface != NULL && _write_lock ()) { + _trace_printf ("%% s%ld flush\n", _get_surface_id (surface)); + _write_unlock (); + } + DLCALL (cairo_surface_flush, surface); + _exit_trace (); +} + +void +cairo_surface_mark_dirty (cairo_surface_t *surface) +{ + _enter_trace (); + _emit_line_info (); + + /* Call cairo before emitting the trace since _emit_surface() might cause + * snapshots to be creates while mark_dirty assert()s that there are none. + */ + DLCALL (cairo_surface_mark_dirty, surface); + + if (surface != NULL && _write_lock ()) { + if (_mark_dirty) { + _emit_surface (surface); + _trace_printf ("%% mark-dirty\n"); + _emit_source_image (surface); + } else + _trace_printf ("%% s%ld mark-dirty\n", _get_surface_id (surface)); + _write_unlock (); + } + _exit_trace (); +} + +void +cairo_surface_mark_dirty_rectangle (cairo_surface_t *surface, + int x, int y, int width, int height) +{ + _enter_trace (); + + /* Call cairo before emitting the trace since _emit_surface() might cause + * snapshots to be creates while mark_dirty assert()s that there are none. + */ + DLCALL (cairo_surface_mark_dirty_rectangle, surface, x, y, width, height); + + _emit_line_info (); + if (surface != NULL && _write_lock ()) { + if (_mark_dirty) { + _emit_surface (surface); + _trace_printf ("%% %d %d %d %d mark-dirty-rectangle\n", + x, y, width, height); + _emit_source_image_rectangle (surface, x,y, width, height); + } else + _trace_printf ("%% s%ld %d %d %d %d mark-dirty-rectangle\n", + _get_surface_id (surface), x, y, width, height); + _write_unlock (); + } + _exit_trace (); +} + +void +cairo_surface_set_device_offset (cairo_surface_t *surface, double x_offset, double y_offset) +{ + _enter_trace (); + _emit_line_info (); + _emit_surface_op (surface, "%g %g set-device-offset\n", + x_offset, y_offset); + DLCALL (cairo_surface_set_device_offset, surface, x_offset, y_offset); + _exit_trace (); +} + +void +cairo_surface_set_device_scale (cairo_surface_t *surface, double x_offset, double y_offset) +{ + _enter_trace (); + _emit_line_info (); + _emit_surface_op (surface, "%g %g set-device-scale\n", + x_offset, y_offset); + DLCALL (cairo_surface_set_device_scale, surface, x_offset, y_offset); + _exit_trace (); +} + + +void +cairo_surface_set_fallback_resolution (cairo_surface_t *surface, double x_pixels_per_inch, double y_pixels_per_inch) +{ + _enter_trace (); + _emit_line_info (); + _emit_surface_op (surface, "%g %g set-fallback-resolution\n", + x_pixels_per_inch, y_pixels_per_inch); + DLCALL (cairo_surface_set_fallback_resolution, surface, x_pixels_per_inch, y_pixels_per_inch); + _exit_trace (); +} + +void +cairo_surface_copy_page (cairo_surface_t *surface) +{ + _enter_trace (); + _emit_line_info (); + _emit_surface_op (surface, "copy-page\n"); + DLCALL (cairo_surface_copy_page, surface); + _exit_trace (); +} + +void +cairo_surface_show_page (cairo_surface_t *surface) +{ + _enter_trace (); + _emit_line_info (); + _emit_surface_op (surface, "show-page\n"); + DLCALL (cairo_surface_show_page, surface); + _exit_trace (); +} + +cairo_status_t +cairo_surface_set_mime_data (cairo_surface_t *surface, + const char *mime_type, + const unsigned char *data, + unsigned long length, + cairo_destroy_func_t destroy, + void *closure) +{ + cairo_status_t ret; + _enter_trace (); + _emit_line_info (); + if (surface != NULL && _write_lock ()) { + _emit_surface (surface); + _emit_string_literal (mime_type, -1); + _trace_printf (" "); + _emit_data (data, length); + _trace_printf (" /deflate filter set-mime-data\n"); + + _write_unlock (); + } + + ret = DLCALL (cairo_surface_set_mime_data, + surface, + mime_type, + data, length, + destroy, + closure); + _exit_trace (); + return ret; +} + +#if CAIRO_HAS_PNG_FUNCTIONS +cairo_status_t +cairo_surface_write_to_png (cairo_surface_t *surface, const char *filename) +{ + cairo_status_t ret; + _enter_trace (); + _emit_line_info (); + if (surface != NULL && _write_lock ()) { + _trace_printf ("%% s%ld ", _get_surface_id (surface)); + _emit_string_literal (filename, -1); + _trace_printf (" write-to-png pop\n"); + _write_unlock (); + } + ret = DLCALL (cairo_surface_write_to_png, surface, filename); + _exit_trace (); + return ret; +} + +cairo_status_t +cairo_surface_write_to_png_stream (cairo_surface_t *surface, + cairo_write_func_t write_func, + void *data) +{ + cairo_status_t ret; + _enter_trace (); + _emit_line_info (); + if (surface != NULL && _write_lock ()) { + char symbol[1024]; + + _trace_printf ("%% s%ld ", _get_surface_id (surface)); +#if CAIRO_HAS_SYMBOL_LOOKUP + lookup_symbol (symbol, sizeof (symbol), write_func); +#else + symbol[0] = '\0'; +#endif + _emit_string_literal (symbol, -1); + _trace_printf (" write-to-png-stream pop\n"); + _write_unlock (); + } + ret = DLCALL (cairo_surface_write_to_png_stream, + surface, write_func, data); + _exit_trace (); + return ret; +} +#endif + +static void CAIRO_PRINTF_FORMAT(2, 3) +_emit_pattern_op (cairo_pattern_t *pattern, const char *fmt, ...) +{ + va_list ap; + + if (pattern == NULL || ! _write_lock ()) + return; + + _emit_pattern (pattern); + + va_start (ap, fmt); + _trace_vprintf (fmt, ap); + va_end (ap); + + _write_unlock (); +} + +cairo_pattern_t * +cairo_pattern_create_rgb (double red, double green, double blue) +{ + cairo_pattern_t *ret; + long pattern_id; + + _enter_trace (); + + ret = DLCALL (cairo_pattern_create_rgb, red, green, blue); + pattern_id = _create_pattern_id (ret); + + _emit_line_info (); + if (_write_lock ()) { + _trace_printf ("/p%ld %g %g %g rgb def\n", + pattern_id, red, green, blue); + _get_object (PATTERN, ret)->defined = TRUE; + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_pattern_t * +cairo_pattern_create_rgba (double red, double green, double blue, double alpha) +{ + cairo_pattern_t *ret; + long pattern_id; + + _enter_trace (); + + ret = DLCALL (cairo_pattern_create_rgba, red, green, blue, alpha); + pattern_id = _create_pattern_id (ret); + + _emit_line_info (); + if (_write_lock ()) { + _trace_printf ("/p%ld %g %g %g %g rgba def\n", + pattern_id, red, green, blue, alpha); + _get_object (PATTERN, ret)->defined = TRUE; + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_pattern_t * +cairo_pattern_create_for_surface (cairo_surface_t *surface) +{ + cairo_pattern_t *ret; + long pattern_id; + long surface_id; + + _enter_trace (); + + ret = DLCALL (cairo_pattern_create_for_surface, surface); + pattern_id = _create_pattern_id (ret); + + _emit_line_info (); + if (surface != NULL && _write_lock ()) { + surface_id = _get_surface_id (surface); + + if (_pop_operands_to (SURFACE, surface)) { + _consume_operand (false); + } else { + _trace_printf ("s%ld ", surface_id); + } + + if (_get_object (SURFACE, surface)->foreign) + _emit_source_image (surface); + + _trace_printf ("pattern %% p%ld\n", pattern_id); + _push_operand (PATTERN, ret); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_pattern_t * +cairo_pattern_create_linear (double x0, double y0, double x1, double y1) +{ + cairo_pattern_t *ret; + long pattern_id; + + _enter_trace (); + + ret = DLCALL (cairo_pattern_create_linear, x0, y0, x1, y1); + pattern_id = _create_pattern_id (ret); + + _emit_line_info (); + if (_write_lock ()) { + _trace_printf ("%g %g %g %g linear %% p%ld\n", + x0, y0, x1, y1, pattern_id); + _push_operand (PATTERN, ret); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_pattern_t * +cairo_pattern_create_radial (double cx0, double cy0, double radius0, double cx1, double cy1, double radius1) +{ + cairo_pattern_t *ret; + long pattern_id; + + _enter_trace (); + + ret = DLCALL (cairo_pattern_create_radial, + cx0, cy0, radius0, + cx1, cy1, radius1); + pattern_id = _create_pattern_id (ret); + + _emit_line_info (); + if (_write_lock ()) { + _trace_printf ("%g %g %g %g %g %g radial %% p%ld\n", + cx0, cy0, radius0, cx1, cy1, radius1, + pattern_id); + _push_operand (PATTERN, ret); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +void +cairo_pattern_add_color_stop_rgb (cairo_pattern_t *pattern, double offset, double red, double green, double blue) +{ + _enter_trace (); + _emit_line_info (); + _emit_pattern_op (pattern, + "%g %g %g %g 1 add-color-stop\n", + offset, red, green, blue); + DLCALL (cairo_pattern_add_color_stop_rgb, pattern, offset, red, green, blue); + _exit_trace (); +} + +void +cairo_pattern_add_color_stop_rgba (cairo_pattern_t *pattern, double offset, double red, double green, double blue, double alpha) +{ + _enter_trace (); + _emit_line_info (); + _emit_pattern_op (pattern, + "%g %g %g %g %g add-color-stop\n", + offset, red, green, blue, alpha); + DLCALL (cairo_pattern_add_color_stop_rgba, pattern, offset, red, green, blue, alpha); + _exit_trace (); +} + +void +cairo_pattern_set_matrix (cairo_pattern_t *pattern, const cairo_matrix_t *matrix) +{ + _enter_trace (); + _emit_line_info (); + if (_matrix_is_identity (matrix)) { + _emit_pattern_op (pattern, "identity set-matrix\n"); + } else { + _emit_pattern_op (pattern, + "%g %g %g %g %g %g matrix set-matrix\n", + matrix->xx, matrix->yx, + matrix->xy, matrix->yy, + matrix->x0, matrix->y0); + } + DLCALL (cairo_pattern_set_matrix, pattern, matrix); + _exit_trace (); +} + +static const char * +_filter_to_string (cairo_filter_t filter) +{ +#define f(name) case CAIRO_FILTER_ ## name: return "FILTER_" #name + switch (filter) { + f(FAST); + f(GOOD); + f(BEST); + f(NEAREST); + f(BILINEAR); + f(GAUSSIAN); + }; +#undef f + return "UNKNOWN_FILTER"; +} + +void +cairo_pattern_set_filter (cairo_pattern_t *pattern, cairo_filter_t filter) +{ + _enter_trace (); + _emit_line_info (); + _emit_pattern_op (pattern, "//%s set-filter\n", _filter_to_string (filter)); + DLCALL (cairo_pattern_set_filter, pattern, filter); + _exit_trace (); +} + +static const char * +_extend_to_string (cairo_extend_t extend) +{ +#define f(name) case CAIRO_EXTEND_ ## name: return "EXTEND_" #name + switch (extend) { + f(NONE); + f(REPEAT); + f(REFLECT); + f(PAD); + }; +#undef f + return "UNKNOWN_EXTEND"; +} + +void +cairo_pattern_set_extend (cairo_pattern_t *pattern, cairo_extend_t extend) +{ + _enter_trace (); + _emit_line_info (); + _emit_pattern_op (pattern, "//%s set-extend\n", _extend_to_string (extend)); + DLCALL (cairo_pattern_set_extend, pattern, extend); + _exit_trace (); +} + +#if CAIRO_HAS_FT_FONT +#if CAIRO_HAS_FC_FONT +cairo_font_face_t * +cairo_ft_font_face_create_for_pattern (FcPattern *pattern) +{ + cairo_font_face_t *ret; + long font_face_id; + + _enter_trace (); + + ret = DLCALL (cairo_ft_font_face_create_for_pattern, pattern); + font_face_id = _create_font_face_id (ret); + + _emit_line_info (); + if (pattern != NULL && _write_lock ()) { + Object *obj; + + obj = _get_object (FONT_FACE, ret); + if (obj->unknown) { + FcPattern *copy; + FcChar8 *unparsed; + + copy = DLCALL (FcPatternDuplicate, pattern); + if (copy) + { + DLCALL (FcPatternDel, copy, FC_LANG); + DLCALL (FcPatternDel, copy, FC_CHARSET); + DLCALL (FcPatternDel, copy, FC_CAPABILITY); + } + else + copy = pattern; + + unparsed = DLCALL (FcNameUnparse, copy); + _trace_printf ("dict\n" + " /type 42 set\n" + " /pattern "); + _emit_string_literal ((char *) unparsed, -1); + _trace_printf (" set\n" + " font %% f%ld\n", + font_face_id); + obj->unknown = FALSE; + _push_operand (FONT_FACE, ret); + dump_stack(__func__); + + if (copy != pattern) + DLCALL (FcPatternDestroy, copy); + free (unparsed); + } + _write_unlock (); + } + + _exit_trace (); + return ret; +} +#endif /* CAIRO_HAS_FC_FONT*/ + +typedef struct _ft_face_data { + unsigned long index; + unsigned long size; + void *data; +} FtFaceData; + +static void +_ft_face_data_destroy (void *arg) +{ + FtFaceData *data = arg; + free (data->data); + free (data); +} + +cairo_font_face_t * +cairo_ft_font_face_create_for_ft_face (FT_Face face, int load_flags) +{ + cairo_font_face_t *ret; + Object *obj; + FtFaceData *data; + long font_face_id; + + _enter_trace (); + + ret = DLCALL (cairo_ft_font_face_create_for_ft_face, face, load_flags); + font_face_id = _create_font_face_id (ret); + + if (face == NULL) { + _exit_trace (); + return ret; + } + + obj = _get_object (NONE, face); + data = obj->data; + if (data == NULL) { + _exit_trace (); + return ret; + } + + _emit_line_info (); + if (_write_lock ()) { + obj = _get_object (FONT_FACE, ret); + if (obj->operand != -1) + _object_remove (obj); + + _trace_printf ("<< /type 42 /source "); + _emit_data (data->data, data->size); + _trace_printf (" /index %lu /flags %d >> font %% f%ld\n", + data->index, load_flags, font_face_id); + _push_operand (FONT_FACE, ret); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +static cairo_bool_t +_ft_read_file (FtFaceData *data, const char *path) +{ + char buf[8192]; + FILE *file; + + file = fopen (path, "rb"); + if (file != NULL) { + size_t ret; + unsigned long int allocated = sizeof (buf); + data->data = malloc (allocated); + do { + ret = fread (buf, 1, sizeof (buf), file); + if (ret == 0) + break; + memcpy ((char *) data->data + data->size, buf, ret); + data->size += ret; + if (ret != sizeof (buf)) + break; + + if (data->size == allocated) { + allocated *= 2; + data->data = realloc (data->data, allocated); + } + } while (TRUE); + fclose (file); + } + + return file != NULL; +} + +FT_Error +FT_New_Face (FT_Library library, const char *pathname, FT_Long index, FT_Face *face) +{ + FT_Error ret; + + _enter_trace (); + + ret = DLCALL (FT_New_Face, library, pathname, index, face); + if (ret == 0) { + Object *obj = _type_object_create (NONE, *face); + FtFaceData *data = malloc (sizeof (FtFaceData)); + data->index = index; + data->size = 0; + data->data = NULL; + _ft_read_file (data, pathname); + obj->data = data; + obj->destroy = _ft_face_data_destroy; + } + + _exit_trace (); + return ret; +} + +FT_Error +FT_New_Memory_Face (FT_Library library, const FT_Byte *mem, FT_Long size, FT_Long index, FT_Face *face) +{ + FT_Error ret; + + _enter_trace (); + + ret = DLCALL (FT_New_Memory_Face, library, mem, size, index, face); + if (ret == 0) { + Object *obj = _type_object_create (NONE, *face); + FtFaceData *data = malloc (sizeof (FtFaceData)); + data->index = index; + data->size = size; + data->data = malloc (size); + memcpy (data->data, mem, size); + obj->data = data; + obj->destroy = _ft_face_data_destroy; + } + + _exit_trace (); + return ret; +} + +/* XXX + * FT_New_Memory_Face() and FT_New_Face() appear to wrap FT_Open_Face() so we + * get a redundant call to FT_Open_Face() from those paths (no PLT hiding + * within FT, naughty library!) but we do not intercept a direct call to + * FT_Open_Face(). So far this has not caused any issues, but it will one + * day... + */ +FT_Error +FT_Open_Face (FT_Library library, const FT_Open_Args *args, FT_Long index, FT_Face *face) +{ + FT_Error ret; + + _enter_trace (); + + ret = DLCALL (FT_Open_Face, library, args, index, face); + if (ret == 0) { + Object *obj = _get_object (NONE, *face); + if (obj == NULL) { + FtFaceData *data; + + data = malloc (sizeof (FtFaceData)); + data->index = index; + if (args->flags & FT_OPEN_MEMORY) { + data->size = args->memory_size; + data->data = malloc (args->memory_size); + memcpy (data->data, args->memory_base, args->memory_size); + } else if (args->flags & FT_OPEN_STREAM) { + fprintf (stderr, "FT_Open_Face (stream, %ld) = %p\n", + index, *face); + abort (); + } else if (args->flags & FT_OPEN_PATHNAME) { + data->size = 0; + data->data = NULL; + _ft_read_file (data, args->pathname); + } + + obj = _type_object_create (NONE, *face); + obj->data = data; + obj->destroy = _ft_face_data_destroy; + } + } + + _exit_trace (); + return ret; +} + +FT_Error +FT_Done_Face (FT_Face face) +{ + FT_Error ret; + _enter_trace (); + + _object_destroy (_get_object (NONE, face)); + + ret = DLCALL (FT_Done_Face, face); + _exit_trace (); + return ret; +} +#endif + +static void +_surface_object_set_size (cairo_surface_t *surface, int width, int height) +{ + Object *obj; + + obj = _get_object (SURFACE, surface); + obj->width = width; + obj->height = height; +} + +static void +_surface_object_set_size_from_surface (cairo_surface_t *surface) +{ + _surface_object_set_size (surface, + DLCALL (cairo_image_surface_get_width, surface), + DLCALL (cairo_image_surface_get_height, surface)); +} + +#if CAIRO_HAS_PS_SURFACE +#include + +cairo_surface_t * +cairo_ps_surface_create (const char *filename, double width_in_points, double height_in_points) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_ps_surface_create, filename, width_in_points, height_in_points); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /PS set\n" + " /filename "); + _emit_string_literal (filename, -1); + _trace_printf (" set\n" + " /width %g set\n" + " /height %g set\n" + " surface %% s%ld\n", + width_in_points, + height_in_points, + obj->token); + obj->width = width_in_points; + obj->height = height_in_points; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_surface_t * +cairo_ps_surface_create_for_stream (cairo_write_func_t write_func, void *closure, double width_in_points, double height_in_points) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_ps_surface_create_for_stream, write_func, closure, width_in_points, height_in_points); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /PS set\n" + " /width %g set\n" + " /height %g set\n" + " surface %% s%ld\n", + width_in_points, + height_in_points, + obj->token); + obj->width = width_in_points; + obj->height = height_in_points; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +void +cairo_ps_surface_set_size (cairo_surface_t *surface, double width_in_points, double height_in_points) +{ + _enter_trace (); + _emit_line_info (); + DLCALL (cairo_ps_surface_set_size, surface, width_in_points, height_in_points); + _exit_trace (); +} + +#endif + +#if CAIRO_HAS_PDF_SURFACE +#include + +cairo_surface_t * +cairo_pdf_surface_create (const char *filename, double width_in_points, double height_in_points) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_pdf_surface_create, filename, width_in_points, height_in_points); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /PDF set\n" + " /filename "); + _emit_string_literal (filename, -1); + _trace_printf (" set\n" + " /width %g set\n" + " /height %g set\n" + " surface %% s%ld\n", + width_in_points, + height_in_points, + obj->token); + obj->width = width_in_points; + obj->height = height_in_points; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_surface_t * +cairo_pdf_surface_create_for_stream (cairo_write_func_t write_func, void *closure, double width_in_points, double height_in_points) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_pdf_surface_create_for_stream, write_func, closure, width_in_points, height_in_points); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /PDF set\n" + " /width %g set\n" + " /height %g set\n" + " surface %% s%ld\n", + width_in_points, + height_in_points, + obj->token); + obj->width = width_in_points; + obj->height = height_in_points; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + _exit_trace (); + return ret; +} + +void +cairo_pdf_surface_set_size (cairo_surface_t *surface, double width_in_points, double height_in_points) +{ + _enter_trace (); + _emit_line_info (); + DLCALL (cairo_pdf_surface_set_size, surface, width_in_points, height_in_points); + _exit_trace (); +} +#endif + +#if CAIRO_HAS_SVG_SURFACE +#include + +cairo_surface_t * +cairo_svg_surface_create (const char *filename, double width, double height) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_svg_surface_create, filename, width, height); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /SVG set\n" + " /filename "); + _emit_string_literal (filename, -1); + _trace_printf (" set\n" + " /width %g set\n" + " /height %g set\n" + " surface %% s%ld\n", + width, + height, + obj->token); + obj->width = width; + obj->height = height; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_surface_t * +cairo_svg_surface_create_for_stream (cairo_write_func_t write_func, void *closure, double width, double height) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_svg_surface_create_for_stream, write_func, closure, width, height); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /SVG set\n" + " /width %g set\n" + " /height %g set\n" + " surface %% s%ld\n", + width, + height, + obj->token); + obj->width = width; + obj->height = height; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +#endif + +#if CAIRO_HAS_PNG_FUNCTIONS +cairo_surface_t * +cairo_image_surface_create_from_png (const char *filename) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_image_surface_create_from_png, filename); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + char filename_string[4096]; + + _encode_string_literal (filename_string, sizeof (filename_string), + filename, -1); + _emit_image (ret, " /filename %s set\n", filename_string); + _trace_printf (" dup /s%ld exch def\n", obj->token); + _surface_object_set_size_from_surface (ret); + obj->defined = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_surface_t * +cairo_image_surface_create_from_png_stream (cairo_read_func_t read_func, void *closure) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_image_surface_create_from_png_stream, read_func, closure); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _emit_image (ret, NULL); + _trace_printf (" dup /s%ld exch def\n", + obj->token); + + _surface_object_set_size_from_surface (ret); + obj->defined = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} +#endif + +#if CAIRO_HAS_TEE_SURFACE +#include + +cairo_surface_t * +cairo_tee_surface_create (cairo_surface_t *master) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_tee_surface_create, master); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /tee set\n" + " /master s%ld set\n" + " surface dup /s%ld exch def\n", + _get_object (SURFACE, master)->token, + obj->token); + obj->defined = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +#endif + +#if CAIRO_HAS_XLIB_SURFACE +#include + +static const char * +_content_from_surface (cairo_surface_t *surface) +{ + return _content_to_string (DLCALL (cairo_surface_get_content, surface)); +} + +cairo_surface_t * +cairo_xlib_surface_create (Display *dpy, + Drawable drawable, + Visual *visual, + int width, int height) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_xlib_surface_create, + dpy, drawable, visual, width, height); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /xlib set\n" + " /drawable 16!%lx set\n" + " /content //%s set\n" + " /width %d set\n" + " /height %d set\n" + " surface dup /s%ld exch def\n", + drawable, + _content_from_surface (ret), + width, height, + obj->token); + obj->defined = TRUE; + obj->width = width; + obj->height = height; + obj->foreign = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_surface_t * +cairo_xlib_surface_create_for_bitmap (Display *dpy, + Pixmap bitmap, + Screen *screen, + int width, int height) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_xlib_surface_create_for_bitmap, + dpy, bitmap, screen, width, height); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /xlib set\n" + " /drawable 16!%lx set\n" + " /content //%s set\n" + " /width %d set\n" + " /height %d set\n" + " /depth 1 set\n" + " surface dup /s%ld exch def\n", + bitmap, + _content_from_surface (ret), + width, height, + obj->token); + obj->defined = TRUE; + obj->width = width; + obj->height = height; + obj->foreign = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +#if CAIRO_HAS_XLIB_XRENDER_SURFACE +#include +cairo_surface_t * +cairo_xlib_surface_create_with_xrender_format (Display *dpy, + Drawable drawable, + Screen *screen, + XRenderPictFormat *format, + int width, int height) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_xlib_surface_create_with_xrender_format, + dpy, drawable, screen, format, width, height); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /xrender set\n" + " /drawable 16!%lx set\n" + " /content //%s set\n" + " /width %d set\n" + " /height %d set\n" + " /depth %d set\n" + " surface dup /s%ld exch def\n", + drawable, + _content_from_surface (ret), + width, height, + format->depth, + obj->token); + obj->defined = TRUE; + obj->width = width; + obj->height = height; + obj->foreign = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} +#endif +#endif + +#if CAIRO_HAS_SCRIPT_SURFACE +#include +cairo_surface_t * +cairo_script_surface_create (cairo_device_t *device, + cairo_content_t content, + double width, + double height) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_script_surface_create, device, content, width, height); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /script set\n" + " /content %s set\n" + " /width %g set\n" + " /height %g set\n" + " surface dup /s%ld exch def\n", + _content_to_string (content), + width, height, + obj->token); + obj->width = width; + obj->height = height; + obj->defined = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_surface_t * +cairo_script_surface_create_for_target (cairo_device_t *device, + cairo_surface_t *target) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_script_surface_create_for_target, device, target); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /script set\n" + " surface dup /s%ld exch def\n", + obj->token); + obj->defined = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} +#endif + +#if CAIRO_HAS_TEST_SURFACES +#include +cairo_surface_t * +_cairo_test_paginated_surface_create (cairo_surface_t *surface) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (_cairo_test_paginated_surface_create, surface); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + /* XXX store initial data? */ + _trace_printf ("dict\n" + " /type /test-paginated set\n" + " /target s%ld set\n" + " surface dup /s%ld exch def\n", + _get_surface_id (surface), + obj->token); + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +#include + +cairo_surface_t * +_cairo_test_fallback_compositor_surface_create (cairo_content_t content, int width, int height) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (_cairo_test_fallback_compositor_surface_create, content, width, height); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /test-fallback-compositor set\n" + " /content //%s set\n" + " /width %d set\n" + " /height %d set\n" + " surface dup /s%ld exch def\n", + _content_to_string (content), + width, height, + obj->token); + obj->defined = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_surface_t * +_cairo_test_mask_compositor_surface_create (cairo_content_t content, int width, int height) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (_cairo_test_mask_compositor_surface_create, content, width, height); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /test-mask-compositor set\n" + " /content //%s set\n" + " /width %d set\n" + " /height %d set\n" + " surface dup /s%ld exch def\n", + _content_to_string (content), + width, height, + obj->token); + obj->defined = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_surface_t * +_cairo_test_spans_compositor_surface_create (cairo_content_t content, int width, int height) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (_cairo_test_spans_compositor_surface_create, content, width, height); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /test-spans-compositor set\n" + " /content //%s set\n" + " /width %d set\n" + " /height %d set\n" + " surface dup /s%ld exch def\n", + _content_to_string (content), + width, height, + obj->token); + obj->defined = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +cairo_surface_t * +_cairo_test_traps_compositor_surface_create (cairo_content_t content, int width, int height) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (_cairo_test_traps_compositor_surface_create, content, width, height); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + _trace_printf ("dict\n" + " /type /test-traps-compositor set\n" + " /content //%s set\n" + " /width %d set\n" + " /height %d set\n" + " surface dup /s%ld exch def\n", + _content_to_string (content), + width, height, + obj->token); + obj->defined = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} + +#endif + +cairo_surface_t * +cairo_recording_surface_create (cairo_content_t content, + const cairo_rectangle_t *extents) +{ + cairo_surface_t *ret; + + _enter_trace (); + + ret = DLCALL (cairo_recording_surface_create, content, extents); + + _emit_line_info (); + if (_write_lock ()) { + Object *obj = _create_surface (ret); + + if (extents) { + _trace_printf ("//%s [ %f %f %f %f ] record dup /s%ld exch def\n", + _content_to_string (content), + extents->x, extents->y, + extents->width, extents->height, + obj->token); + obj->width = extents->width; + obj->height = extents->height; + } else { + _trace_printf ("//%s [ ] record dup /s%ld exch def\n", + _content_to_string (content), + obj->token); + } + obj->defined = TRUE; + _push_object (obj); + dump_stack(__func__); + _write_unlock (); + } + + _exit_trace (); + return ret; +} diff --git a/local/recipes/libs/cairo/source/util/cairo-view b/local/recipes/libs/cairo/source/util/cairo-view new file mode 100755 index 0000000000..2bbed6985c --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo-view @@ -0,0 +1,113 @@ +#!/usr/bin/python + +import sys +import cairo +import pygtk +pygtk.require('2.0') +import gtk +import gtk.gdk +import pango +import gobject + +class CairoView(gtk.Window): + def __init__(self, family="", slant=0, weight=0, size=18, text="The Quick Brown Fox Jumps Over The Lazy Dog!"): + gtk.Widget.__init__ (self) + + self.family = family + if slant == "italic": + self.slant = cairo.FONT_SLANT_ITALIC + elif slant == "oblique": + self.slant = cairo.FONT_SLANT_OBLIQUE + else: + self.slant = cairo.FONT_SLANT_NORMAL + if weight == "bold": + self.weight = cairo.FONT_WEIGHT_BOLD + else: + self.weight = cairo.FONT_WEIGHT_NORMAL + self.size = float (size) + self.text = text + + def do_realize(self): + self.set_flags(self.flags() | gtk.REALIZED) + + self.window = gtk.gdk.Window( + self.get_parent_window(), + width=self.allocation.width, + height=self.allocation.height, + window_type=gtk.gdk.WINDOW_CHILD, + wclass=gtk.gdk.INPUT_OUTPUT, + event_mask=self.get_events() | gtk.gdk.EXPOSURE_MASK) + + self.window.set_user_data(self) + + self.style.attach(self.window) + + self.style.set_background(self.window, gtk.STATE_NORMAL) + + self.width, self.height = self.draw () + self.window.move_resize(0, 0, self.width, self.height) + + def do_unrealize(self): + self.window.destroy() + + def do_expose_event(self, event): + self.draw (event) + + return False + + def draw(self, event = None): + + cr = self.window.cairo_create() + if event: + cr.rectangle(event.area.x, event.area.y, + event.area.width, event.area.height) + cr.clip() + + cr.set_source_rgb (1, 1, 1) + cr.paint () + + cr.select_font_face (self.family, self.slant, self.weight) + cr.set_font_size (self.size) + + PAD = 30 + + extents = cr.text_extents (self.text) + cr.translate (PAD-extents[0], PAD-extents[1]) + + font_extents = cr.font_extents () + cr.rectangle (0, -font_extents[0], extents[4], font_extents[2]) + cr.move_to (-PAD, 0) + cr.line_to (extents[2]+PAD, 0) + cr.set_source_rgba (1, 0, 0, .7) + cr.stroke () + + cr.rectangle (*extents[:4]) + cr.set_source_rgba (0, 1, 0, .7) + cr.stroke () + + cr.move_to (0, 0) + cr.set_source_rgb (0, 0, 0) + cr.show_text (self.text) + + return int (extents[2]) + 2 * PAD, int (extents[3]) + 2 * PAD + + def run(self): + + self.props.allow_shrink = True + self.connect("destroy", gtk.main_quit) + self.show() + + gtk.main() + +gobject.type_register(CairoView) + +def main(args): + + if len (args) == 1: + print "usage: cairo-view family [slant [weight [size [text]]]]" + sys.exit (1) + cv= CairoView (*args[1:]) + cv.run() + +if __name__ == "__main__": + main(sys.argv) diff --git a/local/recipes/libs/cairo/source/util/cairo.modules b/local/recipes/libs/cairo/source/util/cairo.modules new file mode 100644 index 0000000000..c099a037e5 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/cairo.modules @@ -0,0 +1,20 @@ + + + + + + + + + + + + + + + + + + + + diff --git a/local/recipes/libs/cairo/source/util/font-view.c b/local/recipes/libs/cairo/source/util/font-view.c new file mode 100644 index 0000000000..6a3322a8a3 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/font-view.c @@ -0,0 +1,186 @@ +/* + * Copyright © 2008 Behdad Esfahbod + * Copyright © 2009 Chris Wilson + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Chris Wilson not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Chris Wilson makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Chris Wilson + */ + +#include +#include +#include +#include + +struct options { + const char *text; + const char *family; + cairo_font_weight_t weight; + cairo_font_slant_t slant; + double size; + int PAD; + const char *png; +}; + +static void +draw (cairo_t *cr, struct options *options) +{ + cairo_text_extents_t extents; + cairo_font_extents_t font_extents; + + cairo_select_font_face (cr, + options->family, options->slant, options->weight); + cairo_set_font_size (cr, options->size); + + cairo_text_extents (cr, options->text, &extents); + cairo_translate (cr, + options->PAD - extents.x_bearing, + options->PAD - extents.y_bearing); + + cairo_font_extents (cr, &font_extents); + cairo_rectangle (cr, 0, -font_extents.ascent, + extents.x_advance, font_extents.height); + cairo_move_to (cr, -options->PAD, 0); + cairo_line_to (cr, extents.width + options->PAD, 0); + cairo_set_source_rgba (cr, 1, 0, 0, .7); + cairo_stroke (cr); + + cairo_rectangle (cr, + extents.x_bearing, extents.y_bearing, + extents.width, extents.height); + cairo_set_source_rgba (cr, 0, 1, 0, .7); + cairo_stroke (cr); + + cairo_move_to (cr, 0, 0); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_show_text (cr, options->text); + cairo_fill (cr); +} + +static gboolean +expose_event (GtkWidget *w, GdkEventExpose *ev, struct options *options) +{ + cairo_t *cr; + + cr = gdk_cairo_create (w->window); + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + draw (cr, options); + + cairo_destroy (cr); + + if (options->png) { + cairo_surface_t *image; + + image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + w->allocation.width, + w->allocation.height); + cr = cairo_create (image); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + draw (cr, options); + + cairo_destroy (cr); + cairo_surface_write_to_png (image, options->png); + cairo_surface_destroy (image); + } + + return TRUE; +} + +static void +size_request (GtkWidget *w, GtkRequisition *req , struct options *options) +{ + cairo_surface_t *dummy; + cairo_t *cr; + cairo_text_extents_t extents; + + dummy = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 0, 0); + cr = cairo_create (dummy); + cairo_surface_destroy (dummy); + + cairo_select_font_face (cr, + options->family, options->slant, options->weight); + cairo_set_font_size (cr, options->size); + + cairo_text_extents (cr, options->text, &extents); + cairo_destroy (cr); + + req->width = extents.width + 2 * options->PAD; + req->height = extents.height + 2 * options->PAD; +} + +int +main (int argc, char **argv) +{ + GtkWidget *window; + struct options options = { + "The Quick Brown Fox Jumps Over The Lazy Dog!", + "@cairo:small-caps", + CAIRO_FONT_WEIGHT_NORMAL, + CAIRO_FONT_SLANT_NORMAL, + 48, + 30, + "font-view.png" + }; + + gtk_init (&argc, &argv); + + /* rudimentary argument processing */ + if (argc >= 2) { + options.family = argv[1]; + } + if (argc >= 3) { + if (strcmp (argv[2], "italic") == 0) + options.slant = CAIRO_FONT_SLANT_ITALIC; + else if (strcmp (argv[2], "oblique") == 0) + options.slant = CAIRO_FONT_SLANT_OBLIQUE; + else + options.slant = atoi (argv[2]); + } + if (argc >= 4) { + if (strcmp (argv[3], "bold") == 0) + options.weight = CAIRO_FONT_WEIGHT_BOLD; + else + options.weight = atoi (argv[3]); + } + if (argc >= 5) { + options.size = atof (argv[4]); + } + if (argc >= 6) { + options.text = argv[5]; + } + + window = gtk_window_new (GTK_WINDOW_TOPLEVEL); + g_signal_connect (window, "size-request", + G_CALLBACK (size_request), &options); + g_signal_connect (window, "expose-event", + G_CALLBACK (expose_event), &options); + g_signal_connect (window, "delete-event", + G_CALLBACK (gtk_main_quit), NULL); + + gtk_window_present (GTK_WINDOW (window)); + gtk_main (); + + return 0; +} diff --git a/local/recipes/libs/cairo/source/util/meson.build b/local/recipes/libs/cairo/source/util/meson.build new file mode 100644 index 0000000000..1e186bf66d --- /dev/null +++ b/local/recipes/libs/cairo/source/util/meson.build @@ -0,0 +1,43 @@ +subdir('cairo-missing') + +cairo_utils = [] + +if feature_conf.get('CAIRO_HAS_GOBJECT_FUNCTIONS', 0) == 1 + subdir('cairo-gobject') +endif + +if conf.get('CAIRO_HAS_INTERPRETER', 0) == 1 + subdir('cairo-script') +else + libcairoscript_dep = dependency('', required: false) +endif + +if conf.get('CAIRO_HAS_TRACE', 0) == 1 + subdir('cairo-trace') + + if (conf.get('CAIRO_HAS_DLSYM', 0) == 1 and + feature_conf.get('CAIRO_HAS_SCRIPT_SURFACE', 0) == 1 and + feature_conf.get('CAIRO_HAS_TEE_SURFACE', 0) == 1) + subdir('cairo-fdr') + endif +endif + +if gtk_dep.found() + cairo_utils += [ + ['show-contour.c', {'deps': [gtk_dep]}], + ['show-traps.c', {'deps': [gtk_dep]}], + ['show-edges.c', {'deps': [gtk_dep]}], + ['show-polygon.c', {'deps': [gtk_dep]}], + ['show-events.c', {'deps': [gtk_dep]}], + ['font-view.c', {'deps': [gtk_dep]}], + ] +endif + +foreach util : cairo_utils + exe_name = util[0].split('.')[0] + util_deps = util.get(1, {}).get('deps', []) + executable(exe_name, util[0], + include_directories: [incbase], + dependencies: deps + util_deps + [libcairo_dep, libcairoscript_dep], + ) +endforeach diff --git a/local/recipes/libs/cairo/source/util/show-contour.c b/local/recipes/libs/cairo/source/util/show-contour.c new file mode 100644 index 0000000000..e09f6315f7 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/show-contour.c @@ -0,0 +1,668 @@ +#include "config.h" + +#include +#include +#include +#include +#include + +typedef struct _point { + gdouble x, y; +} point_t; +typedef struct _box { + point_t p1, p2; +} box_t; + +typedef struct _contour { + struct _contour *next, *prev; + int direction; + int num_points; + int size; + point_t points[0]; +} contour_t; + +typedef struct _TrapView { + GtkWidget widget; + + cairo_surface_t *pixmap; + int pixmap_width, pixmap_height; + + box_t extents; + contour_t *contours; + + double px, py; + + gint mag_x, mag_y; + gint mag_size; + gdouble mag_zoom; + gboolean in_mag_drag; + gint mag_drag_x, mag_drag_y; +} TrapView; + +typedef struct _TrapViewClass { + GtkWidgetClass parent_class; +} TrapViewClass; + +G_DEFINE_TYPE (TrapView, trap_view, GTK_TYPE_WIDGET) + +static cairo_surface_t * +pixmap_create (TrapView *self, cairo_surface_t *target) +{ + cairo_surface_t *surface = + cairo_surface_create_similar (target, CAIRO_CONTENT_COLOR, + self->widget.allocation.width, + self->widget.allocation.height); + cairo_t *cr = cairo_create (surface); + contour_t *contour; + gdouble sf_x, sf_y, sf; + gdouble mid, dim; + gdouble x0, y0; + int n; + box_t extents; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + if (self->contours == NULL) { + cairo_destroy(cr); + return surface; + } + + extents = self->extents; + + mid = (extents.p2.x + extents.p1.x) / 2.; + dim = (extents.p2.x - extents.p1.x) / 2. * 1.25; + sf_x = self->widget.allocation.width / dim / 2; + + mid = (extents.p2.y + extents.p1.y) / 2.; + dim = (extents.p2.y - extents.p1.y) / 2. * 1.25; + sf_y = self->widget.allocation.height / dim / 2; + + sf = MIN (sf_x, sf_y); + + mid = (extents.p2.x + extents.p1.x) / 2.; + dim = sf_x / sf * (extents.p2.x - extents.p1.x) / 2. * 1.25; + x0 = mid - dim; + mid = (extents.p2.y + extents.p1.y) / 2.; + dim = sf_y / sf * (extents.p2.y - extents.p1.y) / 2. * 1.25; + y0 = mid - dim; + + for (contour = self->contours; contour; contour = contour->next) { + if (contour->num_points == 0) + continue; + + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + switch (contour->direction) { + case -1: + cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); + break; + case 0: + cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); + break; + case 1: + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + break; + } + { + const point_t *p = &contour->points[0]; + cairo_arc (cr, p->x, p->y, 4/sf, 0, 2 * M_PI); + cairo_save (cr); + cairo_identity_matrix (cr); + cairo_stroke (cr); + cairo_restore (cr); + } + for (n = 0; n < contour->num_points; n++) { + const point_t *p = &contour->points[n]; + cairo_arc (cr, p->x, p->y, 2/sf, 0, 2 * M_PI); + cairo_fill (cr); + } + for (n = 0; n < contour->num_points; n++) { + const point_t *p = &contour->points[n]; + cairo_line_to (cr, p->x, p->y); + } + } cairo_restore (cr); + + switch (contour->direction) { + case -1: + cairo_set_source_rgb (cr, 0.3, 0.3, 0.9); + break; + case 0: + cairo_set_source_rgb (cr, 0.3, 0.9, 0.3); + break; + case 1: + cairo_set_source_rgb (cr, 0.9, 0.3, 0.3); + break; + } + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + } + + cairo_destroy (cr); + return surface; +} + +static void +trap_view_draw (TrapView *self, cairo_t *cr) +{ + contour_t *contour; + gdouble sf_x, sf_y, sf; + gdouble mid, dim; + gdouble x0, y0; + int n; + box_t extents; + + extents = self->extents; + + mid = (extents.p2.x + extents.p1.x) / 2.; + dim = (extents.p2.x - extents.p1.x) / 2. * 1.25; + sf_x = self->widget.allocation.width / dim / 2; + + mid = (extents.p2.y + extents.p1.y) / 2.; + dim = (extents.p2.y - extents.p1.y) / 2. * 1.25; + sf_y = self->widget.allocation.height / dim / 2; + + sf = MIN (sf_x, sf_y); + + mid = (extents.p2.x + extents.p1.x) / 2.; + dim = sf_x / sf * (extents.p2.x - extents.p1.x) / 2. * 1.25; + x0 = mid - dim; + mid = (extents.p2.y + extents.p1.y) / 2.; + dim = sf_y / sf * (extents.p2.y - extents.p1.y) / 2. * 1.25; + y0 = mid - dim; + + if (self->pixmap_width != self->widget.allocation.width || + self->pixmap_height != self->widget.allocation.height) + { + cairo_surface_destroy (self->pixmap); + self->pixmap = pixmap_create (self, cairo_get_target (cr)); + self->pixmap_width = self->widget.allocation.width; + self->pixmap_height = self->widget.allocation.height; + } + + cairo_set_source_surface (cr, self->pixmap, 0, 0); + cairo_paint (cr); + + if (self->contours == NULL) + return; + + /* draw a zoom view of the area around the mouse */ + if (1) { + double zoom = self->mag_zoom; + int size = self->mag_size; + int mag_x = self->mag_x; + int mag_y = self->mag_y; + + if (1) { + if (self->px + size < self->widget.allocation.width/2) + mag_x = self->px + size/4; + else + mag_x = self->px - size/4 - size; + mag_y = self->py - size/2; + if (mag_y < 0) + mag_y = 0; + if (mag_y + size > self->widget.allocation.height) + mag_y = self->widget.allocation.height - size; + } + + cairo_save (cr); { + /* bottom right */ + cairo_rectangle (cr, mag_x, mag_y, size, size); + cairo_stroke_preserve (cr); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_fill_preserve (cr); + cairo_clip (cr); + + /* compute roi in extents */ + cairo_translate (cr, mag_x + size/2, mag_y + size/2); + + cairo_save (cr); { + for (contour = self->contours; contour; contour = contour->next) { + if (contour->num_points == 0) + continue; + + cairo_save (cr); { + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + switch (contour->direction) { + case -1: + cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); + break; + case 0: + cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); + break; + case 1: + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + break; + } + { + const point_t *p = &contour->points[0]; + cairo_arc (cr, p->x, p->y, 4/zoom, 0, 2 * M_PI); + cairo_save (cr); + cairo_identity_matrix (cr); + cairo_stroke (cr); + cairo_restore (cr); + } + for (n = 0; n < contour->num_points; n++) { + const point_t *p = &contour->points[n]; + cairo_arc (cr, p->x, p->y, 2/zoom, 0, 2 * M_PI); + cairo_fill (cr); + } + for (n = 0; n < contour->num_points; n++) { + const point_t *p = &contour->points[n]; + cairo_line_to (cr, p->x, p->y); + } + } cairo_restore (cr); + + switch (contour->direction) { + case -1: + cairo_set_source_rgb (cr, 0.3, 0.3, 0.9); + break; + case 0: + cairo_set_source_rgb (cr, 0.3, 0.9, 0.3); + break; + case 1: + cairo_set_source_rgb (cr, 0.9, 0.3, 0.3); + break; + } + cairo_stroke (cr); + } + } cairo_restore (cr); + + /* grid */ + cairo_save (cr); { + int i; + + cairo_translate (cr, + -zoom*fmod (self->px/sf + x0, 1.), + -zoom*fmod (self->py/sf + y0, 1.)); + zoom /= 2; + for (i = -size/2/zoom; i <= size/2/zoom + 1; i+=2) { + cairo_move_to (cr, zoom*i, -size/2); + cairo_line_to (cr, zoom*i, size/2 + zoom); + cairo_move_to (cr, -size/2, zoom*i); + cairo_line_to (cr, size/2 + zoom, zoom*i); + } + zoom *= 2; + cairo_set_source_rgba (cr, .7, .7, .7, .5); + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + + for (i = -size/2/zoom - 1; i <= size/2/zoom + 1; i++) { + cairo_move_to (cr, zoom*i, -size/2); + cairo_line_to (cr, zoom*i, size/2 + zoom); + cairo_move_to (cr, -size/2, zoom*i); + cairo_line_to (cr, size/2 + zoom, zoom*i); + } + cairo_set_source_rgba (cr, .1, .1, .1, .5); + cairo_set_line_width (cr, 2.); + cairo_stroke (cr); + } cairo_restore (cr); + + } cairo_restore (cr); + } +} + + +static gdouble +edge_length (const point_t *p1, const point_t *p2) +{ + return hypot (p2->x - p1->x, p2->y - p1->y); +} + +static gdouble +contour_compute_total_length (const contour_t *contour) +{ + int n; + gdouble len = 0.; + for (n = 1; n < contour->num_points; n++) + len += edge_length (&contour->points[n-1], &contour->points[n]); + return len; +} + +static void +trap_view_draw_labels (TrapView *self, cairo_t *cr) +{ + contour_t *contour; + int y = 12; + + for (contour = self->contours; contour; contour = contour->next) { + double total_length = contour_compute_total_length (contour) / 256.; + PangoLayout *layout; + gint width, height; + GString *string; + gchar *str; + + if (contour->num_points == 0) + continue; + + string = g_string_new (NULL); + g_string_append_printf (string, + "Number of points:\t%d\n" + "Total length of contour: \t%.2f", + contour->num_points, + total_length); + + str = g_string_free (string, FALSE); + layout = gtk_widget_create_pango_layout (&self->widget, str); + g_free (str); + + pango_layout_get_pixel_size (layout, &width, &height); + + switch (contour->direction) { + case -1: + cairo_set_source_rgb (cr, 0.9, 0.3, 0.3); + break; + case 0: + cairo_set_source_rgb (cr, 0.3, 0.9, 0.3); + break; + case 1: + cairo_set_source_rgb (cr, 0.3, 0.3, 0.9); + break; + } + + cairo_move_to (cr, 10, y); + pango_cairo_show_layout (cr, layout); + g_object_unref (layout); + + y += height + 4; + } +} + +static gboolean +trap_view_expose (GtkWidget *w, GdkEventExpose *ev) +{ + TrapView *self = (TrapView *) w; + cairo_t *cr; + + cr = gdk_cairo_create (w->window); + gdk_cairo_region (cr, ev->region); + cairo_clip (cr); + + trap_view_draw (self, cr); + trap_view_draw_labels (self, cr); + + cairo_destroy (cr); + return FALSE; +} + +static gboolean +trap_view_key_press (GtkWidget *w, GdkEventKey *ev) +{ + switch (ev->keyval) { + case GDK_Escape: + case GDK_Q: + gtk_main_quit (); + break; + } + + return FALSE; +} + +static gboolean +trap_view_button_press (GtkWidget *w, GdkEventButton *ev) +{ + TrapView *self = (TrapView *) w; + + if (ev->x < self->mag_x || + ev->y < self->mag_y || + ev->x > self->mag_x + self->mag_size || + ev->y > self->mag_y + self->mag_size) + { + } + else + { + self->in_mag_drag = TRUE; + self->mag_drag_x = ev->x; + self->mag_drag_y = ev->y; + } + + return FALSE; +} + +static gboolean +trap_view_button_release (GtkWidget *w, GdkEventButton *ev) +{ + TrapView *self = (TrapView *) w; + + self->in_mag_drag = FALSE; + + return FALSE; +} + +static void +trap_view_update_mouse (TrapView *self, GdkEventMotion *ev) +{ + self->px = ev->x; + self->py = ev->y; + + gtk_widget_queue_draw (&self->widget); +} + +static void +trap_view_update_magnifier (TrapView *self, gint *xy) +{ + self->mag_x = xy[0]; + self->mag_y = xy[1]; + + gtk_widget_queue_draw (&self->widget); +} + +static gboolean +trap_view_motion (GtkWidget *w, GdkEventMotion *ev) +{ + TrapView *self = (TrapView *) w; + + if (self->in_mag_drag) { + int xy[2]; + + xy[0] = self->mag_x + ev->x - self->mag_drag_x; + xy[1] = self->mag_y + ev->y - self->mag_drag_y; + + trap_view_update_magnifier (self, xy); + + self->mag_drag_x = ev->x; + self->mag_drag_y = ev->y; + } else if (ev->x < self->mag_x || + ev->y < self->mag_y || + ev->x > self->mag_x + self->mag_size || + ev->y > self->mag_y + self->mag_size) + { + trap_view_update_mouse (self, ev); + } + + return FALSE; +} + +static void +trap_view_realize (GtkWidget *widget) +{ + GdkWindowAttr attributes; + + GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); + + attributes.window_type = GDK_WINDOW_CHILD; + attributes.x = widget->allocation.x; + attributes.y = widget->allocation.y; + attributes.width = widget->allocation.width; + attributes.height = widget->allocation.height; + attributes.wclass = GDK_INPUT_OUTPUT; + attributes.visual = gtk_widget_get_visual (widget); + attributes.colormap = gtk_widget_get_colormap (widget); + attributes.event_mask = gtk_widget_get_events (widget) | + GDK_BUTTON_PRESS_MASK | + GDK_BUTTON_RELEASE_MASK | + GDK_KEY_PRESS_MASK | + GDK_KEY_RELEASE_MASK | + GDK_POINTER_MOTION_MASK | + GDK_BUTTON_MOTION_MASK | + GDK_EXPOSURE_MASK; + + widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), + &attributes, + GDK_WA_X | GDK_WA_Y | + GDK_WA_VISUAL | GDK_WA_COLORMAP); + gdk_window_set_user_data (widget->window, widget); + + widget->style = gtk_style_attach (widget->style, widget->window); + gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL); +} + +static void +trap_view_size_allocate (GtkWidget *w, GdkRectangle *r) +{ + TrapView *self = (TrapView *) w; + + GTK_WIDGET_CLASS (trap_view_parent_class)->size_allocate (w, r); + + self->mag_x = w->allocation.width - self->mag_size - 10; + self->mag_y = w->allocation.height - self->mag_size - 10; +} + +static void +trap_view_finalize (GObject *obj) +{ + G_OBJECT_CLASS (trap_view_parent_class)->finalize (obj); +} + +static void +trap_view_class_init (TrapViewClass *klass) +{ + GObjectClass *object_class = (GObjectClass *) klass; + GtkWidgetClass *widget_class = (GtkWidgetClass *) klass; + + object_class->finalize = trap_view_finalize; + + widget_class->realize = trap_view_realize; + widget_class->size_allocate = trap_view_size_allocate; + widget_class->expose_event = trap_view_expose; + widget_class->key_press_event = trap_view_key_press; + widget_class->button_press_event = trap_view_button_press; + widget_class->button_release_event = trap_view_button_release; + widget_class->motion_notify_event = trap_view_motion; +} + +static void +trap_view_init (TrapView *self) +{ + self->mag_zoom = 64; + self->mag_size = 200; + + self->extents.p1.x = G_MAXDOUBLE; + self->extents.p1.y = G_MAXDOUBLE; + self->extents.p2.x = -G_MAXDOUBLE; + self->extents.p2.y = -G_MAXDOUBLE; + + GTK_WIDGET_SET_FLAGS (self, GTK_CAN_FOCUS); +} + +static contour_t * +_contour_add_point (TrapView *tv, contour_t *contour, point_t *p) +{ + if (contour == NULL) + return NULL; + + if (p->y < tv->extents.p1.y) + tv->extents.p1.y = p->y; + if (p->y > tv->extents.p2.y) + tv->extents.p2.y = p->y; + + if (p->x < tv->extents.p1.x) + tv->extents.p1.x = p->x; + if (p->x > tv->extents.p2.x) + tv->extents.p2.x = p->x; + + if (contour->num_points == contour->size) { + int newsize = 2 * contour->size; + void *newcontour; + + newcontour = g_realloc (contour, + sizeof (contour_t) + newsize * sizeof (point_t)); + if (newcontour == NULL) + return contour; + + contour = newcontour; + contour->size = newsize; + + if (contour->next != NULL) + contour->next->prev = newcontour; + if (contour->prev != NULL) + contour->prev->next = newcontour; + else + tv->contours = newcontour; + } + + contour->points[contour->num_points++] = *p; + + return contour; +} + +static contour_t * +contour_new (TrapView *tv, int direction) +{ + contour_t *t; + + t = g_malloc (sizeof (contour_t) + 128 * sizeof (point_t)); + t->direction = direction; + t->prev = NULL; + t->next = tv->contours; + if (tv->contours) + tv->contours->prev = t; + tv->contours = t; + + t->size = 128; + t->num_points = 0; + + return t; +} + +int +main (int argc, char **argv) +{ + TrapView *tv; + contour_t *contour = NULL; + GtkWidget *window; + FILE *file; + char *line = NULL; + size_t len = 0; + + gtk_init (&argc, &argv); + + tv = g_object_new (trap_view_get_type (), NULL); + + file = fopen (argv[1], "r"); + if (file != NULL) { + while (getline (&line, &len, file) != -1) { + point_t p; + int direction; + + if (sscanf (line, "contour: direction=%d", &direction)) { + if (contour) + g_print ("read %d contour\n", contour->num_points); + + contour = contour_new (tv, direction); + } else if (sscanf (line, " [%*d] = (%lf, %lf)", &p.x, &p.y) == 2) { + contour = _contour_add_point (tv, contour, &p); + } + } + + if (contour) + g_print ("read %d contour\n", contour->num_points); + + g_print ("extents=(%lg, %lg), (%lg, %lg)\n", + tv->extents.p1.x, tv->extents.p1.y, + tv->extents.p2.x, tv->extents.p2.y); + fclose (file); + } + + window = gtk_window_new (GTK_WINDOW_TOPLEVEL); + g_signal_connect (window, "delete-event", + G_CALLBACK (gtk_main_quit), NULL); + gtk_widget_set_size_request (window, 800, 800); + gtk_container_add (GTK_CONTAINER (window), &tv->widget); + gtk_widget_show_all (window); + + gtk_main (); + return 0; +} diff --git a/local/recipes/libs/cairo/source/util/show-edges.c b/local/recipes/libs/cairo/source/util/show-edges.c new file mode 100644 index 0000000000..c27900333c --- /dev/null +++ b/local/recipes/libs/cairo/source/util/show-edges.c @@ -0,0 +1,1222 @@ +#include "config.h" + +#include +#include +#include +#include +#include + +typedef struct _point { + gdouble x, y; +} point_t; +typedef struct _box { + point_t p1, p2; +} box_t; +typedef struct _line { + point_t p1, p2; +} line_t; +typedef struct _trapezoid { + gdouble top, bottom; + line_t left, right; +} trapezoid_t; +typedef struct _traps { + struct _traps *next, *prev; + box_t extents; + int num_traps; + int size; + trapezoid_t traps[0]; +} traps_t; + +typedef struct _edge { + line_t line; + gdouble top, bottom; + point_t p1, p2; + int dir; +} edge_t; +typedef struct _edges { + struct _edges *next, *prev; + box_t extents; + int num_edges; + int size; + edge_t edges[0]; +} edges_t; + +typedef struct _TrapView { + GtkWidget widget; + + struct _TrapView *group_head; + struct _TrapView *group_next; + struct _TrapView *group_prev; + + traps_t *traps_list; + traps_t *current_traps; + + edges_t *edges_list; + edges_t *current_edges; + + double px, py; + + gint mag_x, mag_y; + gint mag_size; + gdouble mag_zoom; + gboolean in_mag_drag; + gint mag_drag_x, mag_drag_y; +} TrapView; + +typedef struct _TrapViewClass { + GtkWidgetClass parent_class; +} TrapViewClass; + +G_DEFINE_TYPE (TrapView, trap_view, GTK_TYPE_WIDGET) + +static gdouble +_compute_intersection_x_for_y (const line_t *line, + gdouble y) +{ + gdouble dx = line->p2.x - line->p1.x; + gdouble dy = line->p2.y - line->p1.y; + gdouble x; + + if (y == line->p1.y) + return line->p1.x; + if (y == line->p2.y) + return line->p2.x; + + x = line->p1.x; + if (dy != 0) + x += (y - line->p1.y)*dx/dy; + return x; +} + +static void +_compute_intersection_point (const line_t *line, + gdouble y, + point_t *p) +{ + p->x = _compute_intersection_x_for_y (line, p->y = y); +} + +static void +trap_view_draw (TrapView *self, cairo_t *cr) +{ + traps_t *traps; + edges_t *edges; + gdouble sf_x, sf_y, sf; + gdouble mid, dim; + gdouble x0, x1, y0, y1; + double dash[2] = {8, 8}; + double dots[2] = {0., 1.}; + int n; + box_t extents; + point_t p; + + cairo_save (cr); + cairo_save (cr); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_restore (cr); + + traps = self->current_traps; + edges = self->current_edges; + if (traps == NULL && edges == NULL) + return; + + if (traps != NULL) { + extents = traps->extents; + if (edges != NULL) { + if (edges->extents.p1.x < extents.p1.x) + extents.p1.x = edges->extents.p1.x; + if (edges->extents.p1.y < extents.p1.y) + extents.p1.y = edges->extents.p1.y; + if (edges->extents.p2.x > extents.p2.x) + extents.p2.x = edges->extents.p2.x; + if (edges->extents.p2.y > extents.p2.y) + extents.p2.y = edges->extents.p2.y; + } + } else + extents = edges->extents; + + mid = (extents.p2.x + extents.p1.x) / 2.; + dim = (extents.p2.x - extents.p1.x) / 2. * 1.25; + sf_x = self->widget.allocation.width / dim / 2; + + mid = (extents.p2.y + extents.p1.y) / 2.; + dim = (extents.p2.y - extents.p1.y) / 2. * 1.25; + sf_y = self->widget.allocation.height / dim / 2; + + sf = MIN (sf_x, sf_y); + + mid = (extents.p2.x + extents.p1.x) / 2.; + dim = sf_x / sf * (extents.p2.x - extents.p1.x) / 2. * 1.25; + x0 = mid - dim; + x1 = mid + dim; + mid = (extents.p2.y + extents.p1.y) / 2.; + dim = sf_y / sf * (extents.p2.y - extents.p1.y) / 2. * 1.25; + y0 = mid - dim; + y1 = mid + dim; + + if (traps != NULL) { + cairo_save (cr); + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + cairo_set_source_rgba (cr, 0, 1, 0, .2); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + + _compute_intersection_point (&t->left, t->top, &p); + cairo_move_to (cr, p.x, p.y); + _compute_intersection_point (&t->right, t->top, &p); + cairo_line_to (cr, p.x, p.y); + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + cairo_close_path (cr); + cairo_fill (cr); + } + cairo_restore (cr); + } + + if (edges == NULL) { + cairo_save (cr); + + /* top, bottom */ + cairo_save (cr); { + cairo_matrix_t m; + cairo_matrix_init_scale (&m, sf, sf); + cairo_matrix_translate (&m, -x0, -y0); + + cairo_set_line_width (cr, 1.); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + + _compute_intersection_point (&t->left, t->top, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_move_to (cr, floor (p.x), floor (p.y) + .5); + cairo_set_dash (cr, dash, 2, fmod (floor (p.x), dash[0] + dash[1])); + + _compute_intersection_point (&t->right, t->top, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_line_to (cr, ceil (p.x), floor (p.y) + .5); + cairo_stroke (cr); + + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_move_to (cr, floor (p.x), floor (p.y) + .5); + cairo_set_dash (cr, dash, 2, fmod (floor (p.x), dash[0] + dash[1])); + + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_line_to (cr, ceil (p.x), floor (p.y) + .5); + cairo_stroke (cr); + } + } cairo_restore (cr); + + /* left extents */ + cairo_save (cr); { + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + cairo_move_to (cr, t->left.p1.x, t->left.p1.y); + cairo_line_to (cr, t->left.p2.x, t->left.p2.y); + } + } cairo_restore (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, 1.); + cairo_set_dash (cr, dash, 2, 0.); + cairo_stroke (cr); + } cairo_restore (cr); + + /* left line */ + cairo_save (cr); { + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + _compute_intersection_point (&t->left, t->top, &p); + cairo_move_to (cr, p.x, p.y); + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + } + } cairo_restore (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_stroke (cr); + } cairo_restore (cr); + + /* right extents */ + cairo_save (cr); { + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + cairo_move_to (cr, t->right.p1.x, t->right.p1.y); + cairo_line_to (cr, t->right.p2.x, t->right.p2.y); + } + } cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_set_line_width (cr, 1.); + cairo_set_dash (cr, dash, 2, 0.); + cairo_stroke (cr); + } cairo_restore (cr); + + /* right line */ + cairo_save (cr); { + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + _compute_intersection_point (&t->right, t->top, &p); + cairo_move_to (cr, p.x, p.y); + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + } cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_stroke (cr); + } cairo_restore (cr); + } + + /* end-points */ + cairo_save (cr); { + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + _compute_intersection_point (&t->left, t->top, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + _compute_intersection_point (&t->right, t->top, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + } + } cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_dash (cr, dots, 2, 0.); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_width (cr, 4.); + cairo_stroke (cr); + } cairo_restore (cr); + + cairo_restore (cr); + } else { + cairo_save (cr); + + for (n = 0; n < edges->num_edges; n++) { + const edge_t *e = &edges->edges[n]; + + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + cairo_move_to (cr, e->p1.x, e->p1.y); + cairo_line_to (cr, e->p2.x, e->p2.y); + } cairo_restore (cr); + + if (e->dir < 0) { + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_set_dash (cr, dash, 2, dash[0]); + } else { + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_dash (cr, dash, 2, 0.); + } + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + cairo_move_to (cr, e->p1.x, e->p1.y); + cairo_close_path (cr); + cairo_move_to (cr, e->p2.x, e->p2.y); + cairo_close_path (cr); + } cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_dash (cr, dots, 2, 0.); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_width (cr, 4.); + cairo_stroke (cr); + } + + cairo_restore (cr); + } + + /* draw a zoom view of the area around the mouse */ + { + cairo_save (cr); + double zoom = self->mag_zoom; + int size = self->mag_size; + + /* bottom right */ + cairo_rectangle (cr, self->mag_x, self->mag_y, size, size); + cairo_stroke_preserve (cr); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_fill_preserve (cr); + cairo_clip (cr); + + /* compute roi in extents */ + cairo_translate (cr, self->mag_x + size/2, self->mag_y + size/2); + + if (traps != NULL) { + cairo_save (cr); + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + + _compute_intersection_point (&t->left, t->top, &p); + cairo_move_to (cr, p.x, p.y); + _compute_intersection_point (&t->right, t->top, &p); + cairo_line_to (cr, p.x, p.y); + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + cairo_close_path (cr); + cairo_set_source_rgba (cr, 0, 1, 0, .2); + cairo_fill (cr); + } + cairo_restore (cr); + } + + if (edges == NULL) { + cairo_save (cr); { + cairo_matrix_t m; + cairo_matrix_init_scale (&m, zoom, zoom); + cairo_matrix_translate (&m, -(self->px / sf + x0), -(self->py /sf + y0)); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_line_width (cr, 1.); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + + _compute_intersection_point (&t->left, t->top, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_move_to (cr, floor (p.x), floor (p.y) + .5); + cairo_set_dash (cr, dash, 2, fmod (floor (p.x), dash[0] + dash[1])); + + _compute_intersection_point (&t->right, t->top, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_line_to (cr, ceil (p.x), floor (p.y) + .5); + cairo_stroke (cr); + + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_move_to (cr, floor (p.x), floor (p.y) + .5); + cairo_set_dash (cr, dash, 2, fmod (floor (p.x), dash[0] + dash[1])); + + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_line_to (cr, ceil (p.x), floor (p.y) + .5); + cairo_stroke (cr); + } + } cairo_restore (cr); + + cairo_save (cr); { /* left extents */ + cairo_save (cr); { + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + cairo_move_to (cr, t->left.p1.x, t->left.p1.y); + cairo_line_to (cr, t->left.p2.x, t->left.p2.y); + } + } cairo_restore (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, .5); + cairo_set_dash (cr, dash, 2, 0.); + cairo_stroke (cr); + } cairo_restore (cr); + cairo_save (cr); { /* right extents */ + cairo_save (cr); { + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + cairo_move_to (cr, t->right.p1.x, t->right.p1.y); + cairo_line_to (cr, t->right.p2.x, t->right.p2.y); + } + } cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_set_line_width (cr, .5); + cairo_set_dash (cr, dash, 2, 0.); + cairo_stroke (cr); + } cairo_restore (cr); + + cairo_save (cr); { /* left lines */ + cairo_save (cr); + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + _compute_intersection_point (&t->left, t->top, &p); + cairo_move_to (cr, p.x, p.y); + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + } + cairo_restore (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_stroke (cr); + } cairo_restore (cr); + cairo_save (cr); { /* right lines */ + cairo_save (cr); + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + _compute_intersection_point (&t->right, t->top, &p); + cairo_move_to (cr, p.x, p.y); + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + } + cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_stroke (cr); + } cairo_restore (cr); + + /* end-points */ + cairo_save (cr); { + double dots[2] = {0., 1.}; + + cairo_save (cr); + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + _compute_intersection_point (&t->left, t->top, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + _compute_intersection_point (&t->right, t->top, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + } + cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_dash (cr, dots, 2, 0.); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_width (cr, 4.); + cairo_stroke (cr); + } cairo_restore (cr); + } else { + cairo_save (cr); + + for (n = 0; n < edges->num_edges; n++) { + const edge_t *e = &edges->edges[n]; + + cairo_save (cr); { + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + cairo_move_to (cr, e->p1.x, e->p1.y); + cairo_line_to (cr, e->p2.x, e->p2.y); + } cairo_restore (cr); + + if (e->dir < 0) { + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_set_dash (cr, dash, 2, dash[0]); + } else { + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_dash (cr, dash, 2, 0.); + } + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + + cairo_save (cr); { + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + cairo_move_to (cr, e->p1.x, e->p1.y); + cairo_close_path (cr); + cairo_move_to (cr, e->p2.x, e->p2.y); + cairo_close_path (cr); + } cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_dash (cr, dots, 2, 0.); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_width (cr, 4.); + cairo_stroke (cr); + } + + cairo_restore (cr); + } + + /* grid */ + cairo_save (cr); { + int i; + + cairo_translate (cr, + -zoom*fmod (self->px/sf + x0, 1.), + -zoom*fmod (self->py/sf + y0, 1.)); + for (i = -size/2/zoom - 1; i <= size/2/zoom + 1; i++) { + cairo_move_to (cr, zoom*i, -size/2); + cairo_line_to (cr, zoom*i, size/2 + zoom); + cairo_move_to (cr, -size/2, zoom*i); + cairo_line_to (cr, size/2 + zoom, zoom*i); + } + cairo_set_source_rgba (cr, .7, .7, .7, .5); + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + } cairo_restore (cr); + } + + cairo_restore (cr); +} + + +static gdouble +edge_length (const edge_t *e) +{ + return hypot (e->p2.x - e->p1.x, e->p2.y - e->p1.y); +} + +static gdouble +edges_compute_total_length (const edges_t *edges) +{ + int n; + gdouble len = 0.; + for (n = 0; n < edges->num_edges; n++) + len += edge_length (&edges->edges[n]); + return len; +} + +static gdouble +trapezoid_area (const trapezoid_t *t) +{ + gdouble inner_left, inner_right; + gdouble outer_left, outer_right; + gdouble height; + gdouble area; + + /* split into 3 sections: a rectangle with a pair of triangular bookends */ + inner_left = _compute_intersection_x_for_y (&t->left, t->top); + outer_left = _compute_intersection_x_for_y (&t->left, t->bottom); + if (outer_left > inner_left) { + gdouble t = outer_left; + outer_left = inner_left; + inner_left = t; + } + + inner_right = _compute_intersection_x_for_y (&t->right, t->top); + outer_right = _compute_intersection_x_for_y (&t->right, t->bottom); + if (outer_right > inner_right) { + gdouble t = outer_right; + outer_right = inner_right; + inner_right = t; + } + + if (outer_left > outer_right) { /* reverse */ + gdouble t; + + t = outer_left; + outer_left = inner_right; + inner_right = t; + + t = inner_left; + inner_left = outer_right; + outer_right = t; + } + + height = t->bottom - t->top; + area = (inner_left - outer_left) * height / 2; + area += (outer_right - inner_right) * height / 2; + area += (inner_right - inner_left) * height; + + return area; +} + +static gdouble +traps_compute_total_area (const traps_t *traps) +{ + int n; + gdouble area = 0.; + for (n = 0; n < traps->num_traps; n++) + area += trapezoid_area (&traps->traps[n]); + return area; +} + +static void +trap_view_draw_labels (TrapView *self, cairo_t *cr) +{ + PangoLayout *layout; + gint width, height; + GString *string; + gchar *str; + traps_t *traps; + edges_t *edges; + + string = g_string_new (NULL); + + traps = self->current_traps; + if (traps != NULL) { + /* convert total area from fixed-point (assuming 24.8) */ + gdouble total_area = traps_compute_total_area (traps) / (256. * 256.); + g_string_append_printf (string, + "Number of trapezoids:\t%d\n" + "Total area of trapezoids:\t%.2f\n", + traps->num_traps, + total_area); + } + + edges = self->current_edges; + if (edges != NULL) { + double total_length = edges_compute_total_length (edges) / 256.; + g_string_append_printf (string, + "Number of edges:\t%d\n" + "Total length of edges: \t%.2f\n", + edges->num_edges, + total_length); + } + + str = g_string_free (string, FALSE); + layout = gtk_widget_create_pango_layout (&self->widget, str); + g_free (str); + + pango_layout_get_pixel_size (layout, &width, &height); + + cairo_move_to (cr, 10, 40); + pango_cairo_show_layout (cr, layout); + g_object_unref (layout); +} + +static gboolean +trap_view_expose (GtkWidget *w, GdkEventExpose *ev) +{ + TrapView *self = (TrapView *) w; + cairo_t *cr; + + cr = gdk_cairo_create (w->window); + gdk_cairo_region (cr, ev->region); + cairo_clip (cr); + + trap_view_draw (self, cr); + trap_view_draw_labels (self, cr); + + cairo_destroy (cr); + return FALSE; +} + +static void +trap_view_advance (TrapView *self) +{ + if (self->current_traps && self->current_traps->prev) + self->current_traps = self->current_traps->prev; + if (self->current_edges && self->current_edges->prev) + self->current_edges = self->current_edges->prev; + gtk_widget_queue_draw (&self->widget); +} + +static void +trap_view_back (TrapView *self) +{ + if (self->current_traps && self->current_traps->next) + self->current_traps = self->current_traps->next; + if (self->current_edges && self->current_edges->next) + self->current_edges = self->current_edges->next; + gtk_widget_queue_draw (&self->widget); +} + +static void +trap_view_group_foreach (TrapView *group, GFunc func, gpointer data) +{ + while (group) { + func (group, data); + group = group->group_next; + } +} + +static gboolean +trap_view_key_press (GtkWidget *w, GdkEventKey *ev) +{ + TrapView *self = (TrapView *) w; + + switch (ev->keyval) { + case GDK_BackSpace: + trap_view_group_foreach (self->group_head, + (GFunc) trap_view_back, + NULL); + break; + + case GDK_space: + trap_view_group_foreach (self->group_head, + (GFunc) trap_view_advance, + NULL); + break; + + case GDK_Return: + trap_view_group_foreach (self->group_head, + (GFunc) trap_view_advance, + NULL); + break; + + case GDK_Escape: + case GDK_Q: + gtk_main_quit (); + break; + } + + return FALSE; +} + +static gboolean +trap_view_button_press (GtkWidget *w, GdkEventButton *ev) +{ + TrapView *self = (TrapView *) w; + + if (ev->x < self->mag_x || + ev->y < self->mag_y || + ev->x > self->mag_x + self->mag_size || + ev->y > self->mag_y + self->mag_size) + { + if (ev->type == GDK_BUTTON_PRESS) { + if (self->current_traps == NULL) + return FALSE; + + if (ev->button == 1) { + trap_view_group_foreach (self->group_head, + (GFunc) trap_view_advance, + NULL); + } else if (ev->button == 3) { + trap_view_group_foreach (self->group_head, + (GFunc) trap_view_back, + NULL); + } + } + } + else + { + self->in_mag_drag = TRUE; + self->mag_drag_x = ev->x; + self->mag_drag_y = ev->y; + } + + return FALSE; +} + +static gboolean +trap_view_button_release (GtkWidget *w, GdkEventButton *ev) +{ + TrapView *self = (TrapView *) w; + + self->in_mag_drag = FALSE; + + return FALSE; +} + +static void +trap_view_update_mouse (TrapView *self, GdkEventMotion *ev) +{ + self->px = ev->x; + self->py = ev->y; + + gtk_widget_queue_draw (&self->widget); +} + +static void +trap_view_update_magnifier (TrapView *self, gint *xy) +{ + self->mag_x = xy[0]; + self->mag_y = xy[1]; + + gtk_widget_queue_draw (&self->widget); +} + +static gboolean +trap_view_motion (GtkWidget *w, GdkEventMotion *ev) +{ + TrapView *self = (TrapView *) w; + + if (self->in_mag_drag) { + int xy[2]; + + xy[0] = self->mag_x + ev->x - self->mag_drag_x; + xy[1] = self->mag_y + ev->y - self->mag_drag_y; + + trap_view_group_foreach (self->group_head, + (GFunc) trap_view_update_magnifier, + xy); + + self->mag_drag_x = ev->x; + self->mag_drag_y = ev->y; + } else if (ev->x < self->mag_x || + ev->y < self->mag_y || + ev->x > self->mag_x + self->mag_size || + ev->y > self->mag_y + self->mag_size) + { + trap_view_group_foreach (self->group_head, + (GFunc) trap_view_update_mouse, + ev); + } + + return FALSE; +} + +static void +trap_view_realize (GtkWidget *widget) +{ + GdkWindowAttr attributes; + + GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); + + attributes.window_type = GDK_WINDOW_CHILD; + attributes.x = widget->allocation.x; + attributes.y = widget->allocation.y; + attributes.width = widget->allocation.width; + attributes.height = widget->allocation.height; + attributes.wclass = GDK_INPUT_OUTPUT; + attributes.visual = gtk_widget_get_visual (widget); + attributes.colormap = gtk_widget_get_colormap (widget); + attributes.event_mask = gtk_widget_get_events (widget) | + GDK_BUTTON_PRESS_MASK | + GDK_BUTTON_RELEASE_MASK | + GDK_KEY_PRESS_MASK | + GDK_KEY_RELEASE_MASK | + GDK_POINTER_MOTION_MASK | + GDK_BUTTON_MOTION_MASK | + GDK_EXPOSURE_MASK; + + widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), + &attributes, + GDK_WA_X | GDK_WA_Y | + GDK_WA_VISUAL | GDK_WA_COLORMAP); + gdk_window_set_user_data (widget->window, widget); + + widget->style = gtk_style_attach (widget->style, widget->window); + gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL); +} + +static void +trap_view_size_allocate (GtkWidget *w, GdkRectangle *r) +{ + TrapView *self = (TrapView *) w; + + GTK_WIDGET_CLASS (trap_view_parent_class)->size_allocate (w, r); + + self->mag_x = w->allocation.width - self->mag_size - 10; + self->mag_y = w->allocation.height - self->mag_size - 10; +} + +static void +trap_view_finalize (GObject *obj) +{ + G_OBJECT_CLASS (trap_view_parent_class)->finalize (obj); +} + +static void +trap_view_class_init (TrapViewClass *klass) +{ + GObjectClass *object_class = (GObjectClass *) klass; + GtkWidgetClass *widget_class = (GtkWidgetClass *) klass; + + object_class->finalize = trap_view_finalize; + + widget_class->realize = trap_view_realize; + widget_class->size_allocate = trap_view_size_allocate; + widget_class->expose_event = trap_view_expose; + widget_class->key_press_event = trap_view_key_press; + widget_class->button_press_event = trap_view_button_press; + widget_class->button_release_event = trap_view_button_release; + widget_class->motion_notify_event = trap_view_motion; +} + +static void +trap_view_init (TrapView *self) +{ + self->mag_zoom = 10; + self->mag_size = 200; + + GTK_WIDGET_SET_FLAGS (self, GTK_CAN_FOCUS); +} + +static traps_t * +_traps_add_trapezoid (TrapView *tv, traps_t *traps, const trapezoid_t *trap) +{ + if (trap->top < traps->extents.p1.y) + traps->extents.p1.y = trap->top; + if (trap->bottom > traps->extents.p2.y) + traps->extents.p2.y = trap->bottom; + + if (trap->left.p1.x < traps->extents.p1.x) + traps->extents.p1.x = trap->left.p1.x; + if (trap->left.p2.x < traps->extents.p1.x) + traps->extents.p1.x = trap->left.p2.x; + + if (trap->right.p1.x > traps->extents.p2.x) + traps->extents.p2.x = trap->right.p1.x; + if (trap->right.p2.x > traps->extents.p2.x) + traps->extents.p2.x = trap->right.p2.x; + + if (traps->num_traps == traps->size) { + int newsize = 2 * traps->size; + void *newtraps; + + newtraps = g_realloc (traps, + sizeof (traps_t) + newsize * sizeof (trapezoid_t)); + if (newtraps == NULL) + return traps; + + if (tv->current_traps == traps) + tv->current_traps = newtraps; + + traps = newtraps; + traps->size = newsize; + + if (traps->next != NULL) + traps->next->prev = newtraps; + if (traps->prev != NULL) + traps->prev->next = newtraps; + else + tv->traps_list = newtraps; + } + + traps->traps[traps->num_traps++] = *trap; + + return traps; +} + +static traps_t * +traps_new (TrapView *tv) +{ + traps_t *t; + + t = g_malloc (sizeof (traps_t) + 16 * sizeof (trapezoid_t)); + t->prev = NULL; + t->next = tv->traps_list; + if (tv->traps_list) + tv->traps_list->prev = t; + tv->traps_list = t; + + if (tv->current_traps == NULL) + tv->current_traps = t; + + t->size = 16; + t->num_traps = 0; + t->extents.p1.x = G_MAXDOUBLE; + t->extents.p1.y = G_MAXDOUBLE; + t->extents.p2.x = -G_MAXDOUBLE; + t->extents.p2.y = -G_MAXDOUBLE; + + return t; +} + +static edges_t * +_edges_add_edge (TrapView *tv, edges_t *edges, edge_t *e) +{ + if (e->top < edges->extents.p1.y) + edges->extents.p1.y = e->top; + if (e->bottom > edges->extents.p2.y) + edges->extents.p2.y = e->bottom; + + _compute_intersection_point (&e->line, e->top, &e->p1); + _compute_intersection_point (&e->line, e->bottom, &e->p2); + + if (e->p1.x < edges->extents.p1.x) + edges->extents.p1.x = e->p1.x; + if (e->p2.x < edges->extents.p1.x) + edges->extents.p1.x = e->p2.x; + + if (e->p1.x > edges->extents.p2.x) + edges->extents.p2.x = e->p1.x; + if (e->p2.x > edges->extents.p2.x) + edges->extents.p2.x = e->p2.x; + + if (edges->num_edges == edges->size) { + int newsize = 2 * edges->size; + void *newedges; + + newedges = g_realloc (edges, + sizeof (edges_t) + newsize * sizeof (edge_t)); + if (newedges == NULL) + return edges; + + if (tv->current_edges == edges) + tv->current_edges = newedges; + + edges = newedges; + edges->size = newsize; + + if (edges->next != NULL) + edges->next->prev = newedges; + if (edges->prev != NULL) + edges->prev->next = newedges; + else + tv->edges_list = newedges; + } + + edges->edges[edges->num_edges++] = *e; + + return edges; +} + +static edges_t * +edges_new (TrapView *tv) +{ + edges_t *t; + + t = g_malloc (sizeof (edges_t) + 16 * sizeof (edge_t)); + t->prev = NULL; + t->next = tv->edges_list; + if (tv->edges_list) + tv->edges_list->prev = t; + tv->edges_list = t; + + if (tv->current_edges == NULL) + tv->current_edges = t; + + t->size = 16; + t->num_edges = 0; + t->extents.p1.x = G_MAXDOUBLE; + t->extents.p1.y = G_MAXDOUBLE; + t->extents.p2.x = -G_MAXDOUBLE; + t->extents.p2.y = -G_MAXDOUBLE; + + return t; +} + +int +main (int argc, char **argv) +{ + TrapView *tv, *tv2, *group_head = NULL, *group_prev = NULL; + traps_t *traps; + edges_t *edges; + GtkWidget *window, *hbox; + FILE *file; + char *line = NULL; + size_t len = 0; + + gtk_init (&argc, &argv); + + hbox = gtk_hbox_new (TRUE, 0); + + tv = g_object_new (trap_view_get_type (), NULL); + gtk_box_pack_start (GTK_BOX (hbox), &tv->widget, TRUE, TRUE, 0); + gtk_widget_show (&tv->widget); + + tv->group_prev = group_prev; + tv->group_next = NULL; + if (group_prev) + group_prev->group_next = tv; + group_prev = tv; + if (group_head == NULL) + group_head = tv; + tv->group_head = group_head; + + file = fopen (argv[1], "r"); + if (file != NULL) { + edges = edges_new (tv); + while (getline (&line, &len, file) != -1) { + edge_t e; + + if (sscanf (line, + "(%lf, %lf), (%lf, %lf) %lf %lf %d", + &e.line.p1.x, &e.line.p1.y, + &e.line.p2.x, &e.line.p2.y, + &e.top, &e.bottom, + &e.dir) == 7) { + edges = _edges_add_edge (tv, edges, &e); + } else { + if (edges->num_edges) { + g_print ("read %d edges\n", edges->num_edges); + g_print ("extents=(%lg, %lg), (%lg, %lg)\n", + edges->extents.p1.x, edges->extents.p1.y, + edges->extents.p2.x, edges->extents.p2.y); + edges = edges_new (tv); + } + } + } + + if (edges->num_edges) { + g_print ("read %d edges\n", edges->num_edges); + g_print ("extents=(%lg, %lg), (%lg, %lg)\n", + edges->extents.p1.x, edges->extents.p1.y, + edges->extents.p2.x, edges->extents.p2.y); + } + + fclose (file); + } + + file = fopen (argv[2], "r"); + if (file != NULL) { + traps = traps_new (tv); + while (getline (&line, &len, file) != -1) { + trapezoid_t t; + + if (sscanf (line, + "%lf %lf L:(%lf, %lf), (%lf, %lf) R:(%lf, %lf), (%lf, %lf)", + &t.top, &t.bottom, + &t.left.p1.x, &t.left.p1.y, + &t.left.p2.x, &t.left.p2.y, + &t.right.p1.x, &t.right.p1.y, + &t.right.p2.x, &t.right.p2.y) == 10) { + traps = _traps_add_trapezoid (tv, traps, &t); + } else { + if (traps->num_traps) { + g_print ("read %d trapezoids\n", traps->num_traps); + g_print ("extents=(%lg, %lg), (%lg, %lg)\n", + traps->extents.p1.x, traps->extents.p1.y, + traps->extents.p2.x, traps->extents.p2.y); + traps = traps_new (tv); + } + } + } + + if (traps->num_traps) { + g_print ("read %d trapezoids\n", traps->num_traps); + g_print ("extents=(%lg, %lg), (%lg, %lg)\n", + traps->extents.p1.x, traps->extents.p1.y, + traps->extents.p2.x, traps->extents.p2.y); + } + + fclose (file); + } + + free (line); + + tv2 = g_object_new (trap_view_get_type (), NULL); + gtk_box_pack_start (GTK_BOX (hbox), &tv2->widget, TRUE, TRUE, 0); + gtk_widget_show (&tv2->widget); + + tv2->traps_list = tv->traps_list; + tv2->current_traps = tv->current_traps; + + tv2->group_prev = group_prev; + tv2->group_next = NULL; + group_prev->group_next = tv2; + group_prev = tv2; + tv2->group_head = group_head; + + window = gtk_window_new (GTK_WINDOW_TOPLEVEL); + g_signal_connect (window, "delete-event", + G_CALLBACK (gtk_main_quit), NULL); + gtk_widget_set_size_request (window, 800, 800); + gtk_container_add (GTK_CONTAINER (window), hbox); + gtk_widget_show (hbox); + gtk_widget_show (window); + + gtk_main (); + return 0; +} diff --git a/local/recipes/libs/cairo/source/util/show-events.c b/local/recipes/libs/cairo/source/util/show-events.c new file mode 100644 index 0000000000..da824dd9d7 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/show-events.c @@ -0,0 +1,846 @@ +#include "config.h" + +#include +#include +#include +#include +#include +#include + +typedef struct _point { + gdouble x, y; +} point_t; +typedef struct _box { + point_t p1, p2; +} box_t; +typedef struct _line { + point_t p1, p2; +} line_t; + +typedef struct _edge { + gulong id; + line_t line; + gdouble top, bottom; + point_t p1, p2; + int dir; +} edge_t; +typedef struct _trapezoid { + gdouble top, bottom; + const edge_t *left, *right; +} trapezoid_t; +typedef struct _traps { + int num_traps; + int size; + trapezoid_t traps[0]; +} traps_t; + +typedef struct _edges { + GHashTable *ht; + + int num_edges; + int size; + edge_t edges[0]; +} edges_t; + +typedef struct _event { + enum { + START_EDGE, + END_EDGE, + INTERSECTION, + START_TRAP, + END_TRAP, + } type; + + int x, y; /* (top, bottom) for trap */ + long e1, e2; +} event_t; + +typedef struct _events { + struct _events *prev, *next; + + box_t extents; + edges_t *edges; + traps_t *prototraps; + traps_t *traps; + + int current_event; + int num_events; + int size_events; + event_t *events; +} events_t; + +typedef struct _EventView { + GtkWidget widget; + + events_t *events_list; + events_t *current_events; + + double px, py; + + gint mag_x, mag_y; + gint mag_size; + gdouble mag_zoom; + gboolean in_mag_drag; + gint mag_drag_x, mag_drag_y; +} EventView; + +typedef struct _EventViewClass { + GtkWidgetClass parent_class; +} EventViewClass; + +G_DEFINE_TYPE (EventView, event_view, GTK_TYPE_WIDGET) + +static edge_t * +edges_lookup (edges_t *edges, gulong id) +{ + return &edges->edges[GPOINTER_TO_UINT(g_hash_table_lookup (edges->ht, + GUINT_TO_POINTER + (id)))]; +} + +static gdouble +_compute_intersection_x_for_y (const line_t *line, + gdouble y) +{ + gdouble dx = line->p2.x - line->p1.x; + gdouble dy = line->p2.y - line->p1.y; + gdouble x; + + if (y == line->p1.y) + return line->p1.x; + if (y == line->p2.y) + return line->p2.x; + + x = line->p1.x; + if (dy != 0) + x += (y - line->p1.y)*dx/dy; + return x; +} + +static void +_compute_intersection_point (const line_t *line, + gdouble y, + point_t *p) +{ + p->x = _compute_intersection_x_for_y (line, p->y = y); +} + +static void +_edge_path (cairo_t *cr, const cairo_matrix_t *m, const edge_t *e) +{ + double x, y; + + x = e->p1.x; y = e->p1.y; + cairo_matrix_transform_point (m, &x, &y); + cairo_move_to (cr, x, y); + + x = e->p2.x; y = e->p2.y; + cairo_matrix_transform_point (m, &x, &y); + cairo_line_to (cr, x, y); + + if (e->dir < 0) { + cairo_set_source_rgb (cr, 0, 0, 1); + } else { + cairo_set_source_rgb (cr, 1, 0, 0); + } +} + +static void +_events_draw (events_t *events, cairo_t *cr, cairo_matrix_t *m) +{ + double dash[2] = {8, 8}; + point_t p; + int n; + + /* first the existing and proto-traps */ + cairo_save (cr); { + cairo_set_matrix (cr, m); + + cairo_set_source_rgba (cr, 1, 0, 0, .15); + for (n = 0; n < events->prototraps->num_traps; n++) { + const trapezoid_t *t = &events->prototraps->traps[n]; + + _compute_intersection_point (&t->left->line, t->top, &p); + cairo_move_to (cr, p.x, p.y); + _compute_intersection_point (&t->right->line, t->top, &p); + cairo_line_to (cr, p.x, p.y); + _compute_intersection_point (&t->right->line, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + _compute_intersection_point (&t->left->line, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + cairo_close_path (cr); + cairo_fill (cr); + } + + cairo_set_source_rgba (cr, 0, 1, 0, .2); + for (n = 0; n < events->traps->num_traps; n++) { + const trapezoid_t *t = &events->traps->traps[n]; + + _compute_intersection_point (&t->left->line, t->top, &p); + cairo_move_to (cr, p.x, p.y); + _compute_intersection_point (&t->right->line, t->top, &p); + cairo_line_to (cr, p.x, p.y); + _compute_intersection_point (&t->right->line, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + _compute_intersection_point (&t->left->line, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + cairo_close_path (cr); + cairo_fill (cr); + } + } cairo_restore (cr); + + /* known edges */ + cairo_save (cr); + cairo_set_line_width (cr, 1.); + for (n = 0; n < events->edges->num_edges; n++) { + const edge_t *e = &events->edges->edges[n]; + double x, y; + + x = e->p1.x; y = e->p1.y; + cairo_matrix_transform_point (m, &x, &y); + cairo_move_to (cr, x, y); + + x = e->p2.x; y = e->p2.y; + cairo_matrix_transform_point (m, &x, &y); + cairo_line_to (cr, x, y); + + if (e->dir < 0) { + cairo_set_source_rgba (cr, 0, 0, 1., .4); + cairo_set_dash (cr, dash, 2, fmod (e->p1.x, dash[0]+dash[1]) + dash[0]); + } else { + cairo_set_source_rgba (cr, 1, 0, 0., 4); + cairo_set_dash (cr, dash, 2, fmod (e->p1.x, dash[0]+dash[1])); + } + + cairo_stroke (cr); + + x = e->p1.x; y = e->p1.y; + cairo_matrix_transform_point (m, &x, &y); + cairo_arc (cr, x, y, 2., 0, 2 * G_PI); + + x = e->p2.x; y = e->p2.y; + cairo_matrix_transform_point (m, &x, &y); + cairo_arc (cr, x, y, 2., 0, 2 * G_PI); + + cairo_fill (cr); + } + cairo_restore (cr); + + /* event time */ + cairo_save (cr); { + event_t *e; + double x, y; + + e = &events->events[events->current_event]; + + cairo_set_line_width (cr, 2.); + cairo_set_matrix (cr, m); + cairo_move_to (cr, + events->extents.p1.x, + e->y); + cairo_line_to (cr, + events->extents.p2.x, + e->y); + cairo_identity_matrix (cr); + cairo_stroke (cr); + + x = e->x; y = e->y; + cairo_matrix_transform_point (m, &x, &y); + switch (e->type) { + case START_EDGE: + case END_EDGE: + case INTERSECTION: + cairo_arc (cr, x, y, 4., 0, 2 * G_PI); + break; + case START_TRAP: + case END_TRAP: + break; + } + switch (e->type) { + case START_EDGE: + cairo_set_source_rgb (cr, 1, 0, 0); + break; + case END_EDGE: + cairo_set_source_rgb (cr, 0, 0, 1); + break; + case INTERSECTION: + cairo_set_source_rgb (cr, 1, 0, 1); + break; + case START_TRAP: + case END_TRAP: + break; + } + cairo_fill (cr); + + cairo_set_line_width (cr, 1.); + switch (e->type) { + case START_EDGE: + _edge_path (cr, m, edges_lookup (events->edges, e->e1)); + cairo_stroke (cr); + break; + case END_EDGE: + _edge_path (cr, m, edges_lookup (events->edges, e->e1)); + cairo_stroke (cr); + break; + case INTERSECTION: + _edge_path (cr, m, edges_lookup (events->edges, e->e1)); + cairo_stroke (cr); + _edge_path (cr, m, edges_lookup (events->edges, e->e2)); + cairo_stroke (cr); + break; + } + } cairo_restore (cr); +} + +static void +event_view_draw (EventView *self, cairo_t *cr) +{ + events_t *events; + gdouble sf_x, sf_y, sf; + gdouble mid, dim; + gdouble x0, x1, y0, y1; + cairo_matrix_t m; + + cairo_save (cr); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + cairo_restore (cr); + + events = self->current_events; + if (events == NULL) + return; + + mid = (events->extents.p2.x + events->extents.p1.x) / 2.; + dim = (events->extents.p2.x - events->extents.p1.x) / 2. * 1.2; + sf_x = self->widget.allocation.width / dim / 2; + + mid = (events->extents.p2.y + events->extents.p1.y) / 2.; + dim = (events->extents.p2.y - events->extents.p1.y) / 2. * 1.2; + sf_y = self->widget.allocation.height / dim / 2; + + sf = MIN (sf_x, sf_y); + + mid = (events->extents.p2.x + events->extents.p1.x) / 2.; + dim = sf_x / sf * (events->extents.p2.x - events->extents.p1.x) / 2. * 1.2; + x0 = mid - dim; + x1 = mid + dim; + mid = (events->extents.p2.y + events->extents.p1.y) / 2.; + dim = sf_y / sf * (events->extents.p2.y - events->extents.p1.y) / 2. * 1.2; + y0 = mid - dim; + y1 = mid + dim; + + cairo_matrix_init_scale (&m, sf, sf); + cairo_matrix_translate (&m, -x0, -y0); + _events_draw (events, cr, &m); + + /* draw a zoom view of the area around the mouse */ + cairo_save (cr); { + double zoom = self->mag_zoom; + int size = self->mag_size; + + /* bottom right */ + cairo_rectangle (cr, self->mag_x, self->mag_y, size, size); + cairo_stroke_preserve (cr); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_fill_preserve (cr); + cairo_clip (cr); + + /* compute roi in extents */ + cairo_translate (cr, self->mag_x + size/2, self->mag_y + size/2); + + cairo_matrix_init_scale (&m, zoom, zoom); + cairo_matrix_translate (&m, -(self->px / sf + x0), -(self->py /sf + y0)); + _events_draw (events, cr, &m); + + /* grid */ + cairo_save (cr); { + int i; + + cairo_translate (cr, + -zoom*fmod (self->px/sf + x0, 1.), + -zoom*fmod (self->py/sf + y0, 1.)); + for (i = -size/2/zoom - 1; i <= size/2/zoom + 1; i++) { + cairo_move_to (cr, zoom*i, -size/2); + cairo_line_to (cr, zoom*i, size/2 + zoom); + cairo_move_to (cr, -size/2, zoom*i); + cairo_line_to (cr, size/2 + zoom, zoom*i); + } + cairo_set_source_rgba (cr, .7, .7, .7, .5); + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + } cairo_restore (cr); + } cairo_restore (cr); +} + +static void +event_view_draw_labels (EventView *self, cairo_t *cr) +{ + events_t *events; + + events = self->current_events; + if (events == NULL) + return; + +} + +static gboolean +event_view_expose (GtkWidget *w, GdkEventExpose *ev) +{ + EventView *self = (EventView *) w; + cairo_t *cr; + + cr = gdk_cairo_create (w->window); + gdk_cairo_region (cr, ev->region); + cairo_clip (cr); + + event_view_draw (self, cr); + event_view_draw_labels (self, cr); + + cairo_destroy (cr); + return FALSE; +} + +static void +traps_clear (traps_t *traps) +{ + traps->num_traps = 0; +} + +static traps_t * +traps_add (traps_t *traps, int top, int bot, const edge_t *e1, const edge_t *e2) +{ + trapezoid_t *t; + + if (traps->num_traps == traps->size) { + traps->size *= 2; + traps = g_realloc (traps, + sizeof (traps_t) + traps->size*sizeof (trapezoid_t)); + } + + t = &traps->traps[traps->num_traps++]; + t->top = top; + if (bot > e1->bottom) + bot = e1->bottom; + if (bot > e2->bottom) + bot = e2->bottom; + t->bottom = bot; + + t->left = e1; + t->right = e2; + + return traps; +} + +static void +traps_remove (traps_t *traps, int top, const edge_t *e1, const edge_t *e2) +{ + int n; + + for (n = 0; n < traps->num_traps; n++) { + trapezoid_t *t = &traps->traps[n]; + if (t->top == top && t->left == e1 && t->right == e2) + break; + } + if (n < traps->num_traps) { + g_memmove (&traps->traps[n], + &traps->traps[n+1], + (traps->num_traps-n+1) * sizeof (trapezoid_t)); + traps->num_traps--; + } +} + +static void +event_next (EventView *self) +{ + events_t *events; + event_t *e; + + events = self->current_events; + if (++events->current_event == events->num_events) { + return; + } else if (events->current_event >= events->num_events) { + traps_clear (events->prototraps); + traps_clear (events->traps); + events->current_event = 0; + + self->current_events = events->next; + if (self->current_events == NULL) + self->current_events = self->events_list; + events = self->current_events; + } + + e = &events->events[events->current_event]; + switch (e->type) { + case START_TRAP: + events->prototraps = traps_add (events->prototraps, + e->x, G_MAXINT, + edges_lookup (events->edges, e->e1), + edges_lookup (events->edges, e->e2)); + break; + case END_TRAP: + traps_remove (events->prototraps, + e->x, + edges_lookup (events->edges, e->e1), + edges_lookup (events->edges, e->e2)); + events->traps = traps_add (events->traps, + e->x, e->y, + edges_lookup (events->edges, e->e1), + edges_lookup (events->edges, e->e2)); + break; + } +} + +static gboolean +event_view_button_press (GtkWidget *w, GdkEventButton *ev) +{ + EventView *self = (EventView *) w; + + if (ev->x < self->mag_x || + ev->y < self->mag_y || + ev->x > self->mag_x + self->mag_size || + ev->y > self->mag_y + self->mag_size) + { + if (ev->type == GDK_BUTTON_PRESS) { + event_next (self); + gtk_widget_queue_draw (w); + } + } + else + { + self->in_mag_drag = TRUE; + self->mag_drag_x = ev->x; + self->mag_drag_y = ev->y; + } + + return FALSE; +} + +static gboolean +event_view_button_release (GtkWidget *w, GdkEventButton *ev) +{ + EventView *self = (EventView *) w; + + self->in_mag_drag = FALSE; + + return FALSE; +} + +static gboolean +event_view_motion (GtkWidget *w, GdkEventMotion *ev) +{ + EventView *self = (EventView *) w; + + if (self->in_mag_drag) { + self->mag_x += ev->x - self->mag_drag_x; + self->mag_y += ev->y - self->mag_drag_y; + + gtk_widget_queue_draw (&self->widget); + + self->mag_drag_x = ev->x; + self->mag_drag_y = ev->y; + } else if (ev->x < self->mag_x || + ev->y < self->mag_y || + ev->x > self->mag_x + self->mag_size || + ev->y > self->mag_y + self->mag_size) + { + self->px = ev->x; + self->py = ev->y; + + gtk_widget_queue_draw (&self->widget); + } + + return FALSE; +} + +static void +event_view_realize (GtkWidget *widget) +{ + GdkWindowAttr attributes; + + GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); + + attributes.window_type = GDK_WINDOW_CHILD; + attributes.x = widget->allocation.x; + attributes.y = widget->allocation.y; + attributes.width = widget->allocation.width; + attributes.height = widget->allocation.height; + attributes.wclass = GDK_INPUT_OUTPUT; + attributes.visual = gtk_widget_get_visual (widget); + attributes.colormap = gtk_widget_get_colormap (widget); + attributes.event_mask = gtk_widget_get_events (widget) | + GDK_BUTTON_PRESS_MASK | + GDK_BUTTON_RELEASE_MASK | + GDK_KEY_PRESS_MASK | + GDK_KEY_RELEASE_MASK | + GDK_POINTER_MOTION_MASK | + GDK_BUTTON_MOTION_MASK | + GDK_EXPOSURE_MASK; + + widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), + &attributes, + GDK_WA_X | GDK_WA_Y | + GDK_WA_VISUAL | GDK_WA_COLORMAP); + gdk_window_set_user_data (widget->window, widget); + + widget->style = gtk_style_attach (widget->style, widget->window); + gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL); +} + +static void +event_view_size_allocate (GtkWidget *w, GdkRectangle *r) +{ + EventView *self = (EventView *) w; + + GTK_WIDGET_CLASS (event_view_parent_class)->size_allocate (w, r); + + self->mag_x = w->allocation.width - self->mag_size - 10; + self->mag_y = w->allocation.height - self->mag_size - 10; +} + +static void +event_view_finalize (GObject *obj) +{ + G_OBJECT_CLASS (event_view_parent_class)->finalize (obj); +} + +static void +event_view_class_init (EventViewClass *klass) +{ + GObjectClass *object_class = (GObjectClass *) klass; + GtkWidgetClass *widget_class = (GtkWidgetClass *) klass; + + object_class->finalize = event_view_finalize; + + widget_class->realize = event_view_realize; + widget_class->size_allocate = event_view_size_allocate; + widget_class->expose_event = event_view_expose; + widget_class->button_press_event = event_view_button_press; + widget_class->button_release_event = event_view_button_release; + widget_class->motion_notify_event = event_view_motion; +} + +static void +event_view_init (EventView *self) +{ + self->mag_zoom = 10; + self->mag_size = 200; +} + +static traps_t * +traps_new (void) +{ + traps_t *t; + + t = g_malloc (sizeof (traps_t) + 16 * sizeof (trapezoid_t)); + + t->size = 16; + t->num_traps = 0; + + return t; +} + +static edges_t * +_edges_add_edge (edges_t *edges, edge_t *e, box_t *extents) +{ + if (e->top < extents->p1.y) + extents->p1.y = e->top; + if (e->bottom > extents->p2.y) + extents->p2.y = e->bottom; + + _compute_intersection_point (&e->line, e->top, &e->p1); + _compute_intersection_point (&e->line, e->bottom, &e->p2); + + if (e->p1.x < extents->p1.x) + extents->p1.x = e->p1.x; + if (e->p2.x < extents->p1.x) + extents->p1.x = e->p2.x; + + if (e->p1.x > extents->p2.x) + extents->p2.x = e->p1.x; + if (e->p2.x > extents->p2.x) + extents->p2.x = e->p2.x; + + if (edges->num_edges == edges->size) { + edges->size *= 2; + edges = g_realloc (edges, + sizeof (edges_t) + edges->size * sizeof (edge_t)); + } + + g_hash_table_insert (edges->ht, + GUINT_TO_POINTER (e->id), + GUINT_TO_POINTER (edges->num_edges)); + edges->edges[edges->num_edges++] = *e; + + return edges; +} + +static void +_events_add_event (events_t *events, + int type, + int x, int y, + gulong e1, gulong e2) +{ + event_t *e; + + if (events->num_events == events->size_events) { + int newsize = 2 * events->size_events; + void *newevents; + + newevents = g_renew (event_t, events->events, newsize); + events->events = newevents; + events->size_events = newsize; + } + + e = &events->events[events->num_events++]; + e->type = type; + e->x = x; + e->y = y; + e->e1 = e1; + e->e2 = e2; +} + +static edges_t * +edges_new (void) +{ + edges_t *t; + + t = g_malloc (sizeof (edges_t) + 16 * sizeof (edge_t)); + t->ht = g_hash_table_new (NULL, NULL); + t->size = 16; + t->num_edges = 0; + + return t; +} + +static events_t * +events_new (void) +{ + events_t *events; + + events = g_malloc (sizeof (events_t)); + + events->next = NULL; + events->prev = NULL; + + events->events = g_new (event_t, 16); + events->size_events = 16; + events->num_events = 0; + events->current_event = 0; + + events->edges = edges_new (); + events->prototraps = traps_new (); + events->traps = traps_new (); + + events->extents.p1.x = G_MAXDOUBLE; + events->extents.p1.y = G_MAXDOUBLE; + events->extents.p2.x = -G_MAXDOUBLE; + events->extents.p2.y = -G_MAXDOUBLE; + + return events; +} + +static void +events_read (EventView *ev, const char *filename) +{ + FILE *file; + + file = fopen (filename, "r"); + if (file != NULL) { + char *line = NULL; + size_t len = 0; + events_t *events; + + events = ev->events_list = events_new (); + while (getline (&line, &len, file) != -1) { + line = g_strstrip (line); + if (*line == '\0') { + events->next = events_new (); + events->next->prev = events; + events = events->next; + } else if (g_str_has_prefix (line, "edge:")) { + edge_t edge; + + sscanf (line, "edge: %lu (%lf, %lf) (%lf, %lf) (%lf, %lf) %d", + &edge.id, + &edge.line.p1.x, + &edge.line.p1.y, + &edge.line.p2.x, + &edge.line.p2.y, + &edge.top, + &edge.bottom, + &edge.dir); + + events->edges = _edges_add_edge (events->edges, + &edge, + &events->extents); + } else if (g_str_has_prefix (line, "event:")) { + int type; + int x,y; + gulong e1, e2; + + sscanf (line, "event: %d (%d, %d) %lu %lu", + &type, &x, &y, + &e1, &e2); + + _events_add_event (events, type, x, y, e1, e2); + } else if (g_str_has_prefix (line, "begin trap:")) { + int top; + gulong e1, e2; + + sscanf (line, "begin trap: %lu %lu %u", &e1, &e2, &top); + + _events_add_event (events, START_TRAP, top, 0, e1, e2); + } else if (g_str_has_prefix (line, "end trap:")) { + int top, bottom; + gulong e1, e2; + + sscanf (line, "end trap: %lu %lu %d %d", + &e1, &e2, &top, &bottom); + + _events_add_event (events, END_TRAP, top, bottom, e1, e2); + } + } + + ev->current_events = ev->events_list; + + free (line); + fclose (file); + } +} + +static gboolean +timeout_advance (EventView *self) +{ + event_next (self); + gtk_widget_queue_draw (&self->widget); + return TRUE; +} + +int +main (int argc, char **argv) +{ + EventView *ev; + GtkWidget *window, *hbox; + + gtk_init (&argc, &argv); + + hbox = gtk_hbox_new (TRUE, 0); + + ev = g_object_new (event_view_get_type (), NULL); + gtk_box_pack_start (GTK_BOX (hbox), &ev->widget, TRUE, TRUE, 0); + gtk_widget_show (&ev->widget); + + events_read (ev, argv[1]); + g_timeout_add (750, (GSourceFunc) timeout_advance, ev); + + window = gtk_window_new (GTK_WINDOW_TOPLEVEL); + gtk_widget_set_size_request (window, 800, 800); + g_signal_connect (window, "delete-event", + G_CALLBACK (gtk_main_quit), NULL); + gtk_container_add (GTK_CONTAINER (window), hbox); + gtk_widget_show (hbox); + gtk_widget_show (window); + + gtk_main (); + return 0; +} diff --git a/local/recipes/libs/cairo/source/util/show-polygon.c b/local/recipes/libs/cairo/source/util/show-polygon.c new file mode 100644 index 0000000000..1157427f78 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/show-polygon.c @@ -0,0 +1,647 @@ +#include "config.h" + +#include +#include +#include +#include +#include +#include + +typedef struct _point { + gdouble x, y; +} point_t; +typedef struct _edge { + point_t p1, p2; + gdouble top, bot; + int dir; +} edge_t; +typedef struct _box { + point_t p1, p2; +} box_t; + +typedef struct _polygon { + struct _polygon *next, *prev; + int num_edges; + int size; + edge_t edges[0]; +} polygon_t; + +typedef struct _PolygonView { + GtkWidget widget; + + cairo_surface_t *pixmap; + int pixmap_width, pixmap_height; + + box_t extents; + polygon_t *polygons; + + double px, py; + + gint mag_x, mag_y; + gint mag_size; + gdouble mag_zoom; + gboolean in_mag_drag; + gint mag_drag_x, mag_drag_y; +} PolygonView; + +typedef struct _PolygonViewClass { + GtkWidgetClass parent_class; +} PolygonViewClass; + +G_DEFINE_TYPE (PolygonView, polygon_view, GTK_TYPE_WIDGET) + +double highlight = -1; + +static void draw_edges (cairo_t *cr, polygon_t *p, gdouble sf, int dir) +{ + int n; + + if (dir < 0) + cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); + else + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + + for (n = 0; n < p->num_edges; n++) { + const edge_t *e = &p->edges[n]; + double dx, dy; + double x1, x2; + + if (e->dir != dir) + continue; + + dx = e->p2.x - e->p1.x; + dy = e->p2.y - e->p1.y; + + x1 = e->p1.x + (e->top - e->p1.y) / dy * dx; + x2 = e->p1.x + (e->bot - e->p1.y) / dy * dx; + + cairo_arc (cr, x1, e->top, 2/sf, 0, 2*M_PI); + cairo_arc (cr, x2, e->bot, 2/sf, 0, 2*M_PI); + cairo_fill (cr); + } + + if (dir < 0) + cairo_set_source_rgba (cr, 0.0, 0.0, 1.0, 0.5); + else + cairo_set_source_rgba (cr, 1.0, 0.0, 0.0, 0.5); + + for (n = 0; n < p->num_edges; n++) { + const edge_t *e = &p->edges[n]; + + if (e->dir != dir) + continue; + + cairo_move_to (cr, e->p1.x, e->p1.y); + cairo_line_to (cr, e->p2.x, e->p2.y); + } + cairo_save (cr); { + cairo_identity_matrix (cr); + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + } cairo_restore (cr); + + if (dir < 0) + cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); + else + cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); + + for (n = 0; n < p->num_edges; n++) { + const edge_t *e = &p->edges[n]; + double dx, dy; + double x1, x2; + + if (e->dir != dir) + continue; + + dx = e->p2.x - e->p1.x; + dy = e->p2.y - e->p1.y; + + x1 = e->p1.x + (e->top - e->p1.y) / dy * dx; + x2 = e->p1.x + (e->bot - e->p1.y) / dy * dx; + + cairo_move_to (cr, x1, e->top); + cairo_line_to (cr, x2, e->bot); + } + cairo_save (cr); { + cairo_identity_matrix (cr); + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + } cairo_restore (cr); +} + +static void draw_polygon (cairo_t *cr, polygon_t *p, gdouble sf) +{ + draw_edges (cr, p, sf, -1); + + draw_edges (cr, p, sf, +1); +} + +static cairo_surface_t * +pixmap_create (PolygonView *self, cairo_surface_t *target) +{ + cairo_surface_t *surface = + cairo_surface_create_similar (target, CAIRO_CONTENT_COLOR, + self->widget.allocation.width, + self->widget.allocation.height); + cairo_t *cr = cairo_create (surface); + polygon_t *polygon; + gdouble sf_x, sf_y, sf; + gdouble mid, dim; + gdouble x0, y0; + box_t extents; + + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + if (self->polygons == NULL) { + cairo_destroy(cr); + return surface; + } + + extents = self->extents; + + mid = (extents.p2.x + extents.p1.x) / 2.; + dim = (extents.p2.x - extents.p1.x) / 2. * 1.25; + sf_x = self->widget.allocation.width / dim / 2; + + mid = (extents.p2.y + extents.p1.y) / 2.; + dim = (extents.p2.y - extents.p1.y) / 2. * 1.25; + sf_y = self->widget.allocation.height / dim / 2; + + sf = MIN (sf_x, sf_y); + + mid = (extents.p2.x + extents.p1.x) / 2.; + dim = sf_x / sf * (extents.p2.x - extents.p1.x) / 2. * 1.25; + x0 = mid - dim; + mid = (extents.p2.y + extents.p1.y) / 2.; + dim = sf_y / sf * (extents.p2.y - extents.p1.y) / 2. * 1.25; + y0 = mid - dim; + + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + + for (polygon = self->polygons; polygon; polygon = polygon->next) { + if (polygon->num_edges == 0) + continue; + + draw_polygon (cr, polygon, sf); + } + + if (highlight != -1) { + cairo_move_to (cr, extents.p1.x, highlight); + cairo_line_to (cr, extents.p2.x, highlight); + cairo_set_source_rgb (cr, 0, .7, 0); + cairo_save (cr); + cairo_identity_matrix (cr); + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + cairo_restore (cr); + } + } cairo_restore (cr); + + cairo_destroy (cr); + return surface; +} + +static void +polygon_view_draw (PolygonView *self, cairo_t *cr) +{ + polygon_t *polygon; + gdouble sf_x, sf_y, sf; + gdouble mid, dim; + gdouble x0, y0; + box_t extents; + + extents = self->extents; + + mid = (extents.p2.x + extents.p1.x) / 2.; + dim = (extents.p2.x - extents.p1.x) / 2. * 1.25; + sf_x = self->widget.allocation.width / dim / 2; + + mid = (extents.p2.y + extents.p1.y) / 2.; + dim = (extents.p2.y - extents.p1.y) / 2. * 1.25; + sf_y = self->widget.allocation.height / dim / 2; + + sf = MIN (sf_x, sf_y); + + mid = (extents.p2.x + extents.p1.x) / 2.; + dim = sf_x / sf * (extents.p2.x - extents.p1.x) / 2. * 1.25; + x0 = mid - dim; + mid = (extents.p2.y + extents.p1.y) / 2.; + dim = sf_y / sf * (extents.p2.y - extents.p1.y) / 2. * 1.25; + y0 = mid - dim; + + if (self->pixmap_width != self->widget.allocation.width || + self->pixmap_height != self->widget.allocation.height) + { + cairo_surface_destroy (self->pixmap); + self->pixmap = pixmap_create (self, cairo_get_target (cr)); + self->pixmap_width = self->widget.allocation.width; + self->pixmap_height = self->widget.allocation.height; + } + + cairo_set_source_surface (cr, self->pixmap, 0, 0); + cairo_paint (cr); + + if (self->polygons == NULL) + return; + + /* draw a zoom view of the area around the mouse */ + if (1) { + double zoom = self->mag_zoom; + int size = self->mag_size; + int mag_x = self->mag_x; + int mag_y = self->mag_y; + + if (1) { + if (self->px + size < self->widget.allocation.width/2) + mag_x = self->px + size/4; + else + mag_x = self->px - size/4 - size; + mag_y = self->py - size/2; + if (mag_y < 0) + mag_y = 0; + if (mag_y + size > self->widget.allocation.height) + mag_y = self->widget.allocation.height - size; + } + + cairo_save (cr); { + /* bottom right */ + cairo_rectangle (cr, mag_x, mag_y, size, size); + cairo_stroke_preserve (cr); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_fill_preserve (cr); + cairo_clip (cr); + + /* compute roi in extents */ + cairo_translate (cr, mag_x + size/2, mag_y + size/2); + + cairo_save (cr); { + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + for (polygon = self->polygons; polygon; polygon = polygon->next) { + if (polygon->num_edges == 0) + continue; + + draw_polygon (cr, polygon, zoom); + } + + if (highlight != -1) { + cairo_move_to (cr, extents.p1.x, highlight); + cairo_line_to (cr, extents.p2.x, highlight); + cairo_set_source_rgb (cr, 0, .7, 0); + cairo_save (cr); + cairo_identity_matrix (cr); + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + cairo_restore (cr); + } + } cairo_restore (cr); + + /* grid */ + cairo_save (cr); { + int i; + + cairo_translate (cr, + -zoom*fmod (self->px/sf + x0, 1.), + -zoom*fmod (self->py/sf + y0, 1.)); + zoom /= 2; + for (i = -size/2/zoom; i <= size/2/zoom + 1; i+=2) { + cairo_move_to (cr, zoom*i, -size/2); + cairo_line_to (cr, zoom*i, size/2 + zoom); + cairo_move_to (cr, -size/2, zoom*i); + cairo_line_to (cr, size/2 + zoom, zoom*i); + } + zoom *= 2; + cairo_set_source_rgba (cr, .7, .7, .7, .5); + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + + for (i = -size/2/zoom - 1; i <= size/2/zoom + 1; i++) { + cairo_move_to (cr, zoom*i, -size/2); + cairo_line_to (cr, zoom*i, size/2 + zoom); + cairo_move_to (cr, -size/2, zoom*i); + cairo_line_to (cr, size/2 + zoom, zoom*i); + } + cairo_set_source_rgba (cr, .1, .1, .1, .5); + cairo_set_line_width (cr, 2.); + cairo_stroke (cr); + } cairo_restore (cr); + + } cairo_restore (cr); + } +} + +static gboolean +polygon_view_expose (GtkWidget *w, GdkEventExpose *ev) +{ + PolygonView *self = (PolygonView *) w; + cairo_t *cr; + + cr = gdk_cairo_create (w->window); + gdk_cairo_region (cr, ev->region); + cairo_clip (cr); + + polygon_view_draw (self, cr); + + cairo_destroy (cr); + return FALSE; +} + +static gboolean +polygon_view_key_press (GtkWidget *w, GdkEventKey *ev) +{ + switch (ev->keyval) { + case GDK_Escape: + case GDK_Q: + gtk_main_quit (); + break; + } + + return FALSE; +} + +static gboolean +polygon_view_button_press (GtkWidget *w, GdkEventButton *ev) +{ + PolygonView *self = (PolygonView *) w; + + if (ev->x < self->mag_x || + ev->y < self->mag_y || + ev->x > self->mag_x + self->mag_size || + ev->y > self->mag_y + self->mag_size) + { + } + else + { + self->in_mag_drag = TRUE; + self->mag_drag_x = ev->x; + self->mag_drag_y = ev->y; + } + + return FALSE; +} + +static gboolean +polygon_view_button_release (GtkWidget *w, GdkEventButton *ev) +{ + PolygonView *self = (PolygonView *) w; + + self->in_mag_drag = FALSE; + + return FALSE; +} + +static void +polygon_view_update_mouse (PolygonView *self, GdkEventMotion *ev) +{ + self->px = ev->x; + self->py = ev->y; + + gtk_widget_queue_draw (&self->widget); +} + +static void +polygon_view_update_magnifier (PolygonView *self, gint *xy) +{ + self->mag_x = xy[0]; + self->mag_y = xy[1]; + + gtk_widget_queue_draw (&self->widget); +} + +static gboolean +polygon_view_motion (GtkWidget *w, GdkEventMotion *ev) +{ + PolygonView *self = (PolygonView *) w; + + if (self->in_mag_drag) { + int xy[2]; + + xy[0] = self->mag_x + ev->x - self->mag_drag_x; + xy[1] = self->mag_y + ev->y - self->mag_drag_y; + + polygon_view_update_magnifier (self, xy); + + self->mag_drag_x = ev->x; + self->mag_drag_y = ev->y; + } else if (ev->x < self->mag_x || + ev->y < self->mag_y || + ev->x > self->mag_x + self->mag_size || + ev->y > self->mag_y + self->mag_size) + { + polygon_view_update_mouse (self, ev); + } + + return FALSE; +} + +static void +polygon_view_realize (GtkWidget *widget) +{ + GdkWindowAttr attributes; + + GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); + + attributes.window_type = GDK_WINDOW_CHILD; + attributes.x = widget->allocation.x; + attributes.y = widget->allocation.y; + attributes.width = widget->allocation.width; + attributes.height = widget->allocation.height; + attributes.wclass = GDK_INPUT_OUTPUT; + attributes.visual = gtk_widget_get_visual (widget); + attributes.colormap = gtk_widget_get_colormap (widget); + attributes.event_mask = gtk_widget_get_events (widget) | + GDK_BUTTON_PRESS_MASK | + GDK_BUTTON_RELEASE_MASK | + GDK_KEY_PRESS_MASK | + GDK_KEY_RELEASE_MASK | + GDK_POINTER_MOTION_MASK | + GDK_BUTTON_MOTION_MASK | + GDK_EXPOSURE_MASK; + + widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), + &attributes, + GDK_WA_X | GDK_WA_Y | + GDK_WA_VISUAL | GDK_WA_COLORMAP); + gdk_window_set_user_data (widget->window, widget); + + widget->style = gtk_style_attach (widget->style, widget->window); + gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL); +} + +static void +polygon_view_size_allocate (GtkWidget *w, GdkRectangle *r) +{ + PolygonView *self = (PolygonView *) w; + + GTK_WIDGET_CLASS (polygon_view_parent_class)->size_allocate (w, r); + + self->mag_x = w->allocation.width - self->mag_size - 10; + self->mag_y = w->allocation.height - self->mag_size - 10; +} + +static void +polygon_view_finalize (GObject *obj) +{ + G_OBJECT_CLASS (polygon_view_parent_class)->finalize (obj); +} + +static void +polygon_view_class_init (PolygonViewClass *klass) +{ + GObjectClass *object_class = (GObjectClass *) klass; + GtkWidgetClass *widget_class = (GtkWidgetClass *) klass; + + object_class->finalize = polygon_view_finalize; + + widget_class->realize = polygon_view_realize; + widget_class->size_allocate = polygon_view_size_allocate; + widget_class->expose_event = polygon_view_expose; + widget_class->key_press_event = polygon_view_key_press; + widget_class->button_press_event = polygon_view_button_press; + widget_class->button_release_event = polygon_view_button_release; + widget_class->motion_notify_event = polygon_view_motion; +} + +static void +polygon_view_init (PolygonView *self) +{ + self->mag_zoom = 64; + self->mag_size = 200; + + self->extents.p1.x = G_MAXDOUBLE; + self->extents.p1.y = G_MAXDOUBLE; + self->extents.p2.x = -G_MAXDOUBLE; + self->extents.p2.y = -G_MAXDOUBLE; + + GTK_WIDGET_SET_FLAGS (self, GTK_CAN_FOCUS); +} + +static polygon_t * +_polygon_add_edge (PolygonView *view, polygon_t *polygon, + point_t *p1, point_t *p2, + gdouble top, gdouble bot, int dir) +{ + if (polygon == NULL) + return NULL; + + if (top < view->extents.p1.y) + view->extents.p1.y = top; + if (bot > view->extents.p2.y) + view->extents.p2.y = bot; + + if (p1->x < view->extents.p1.x) + view->extents.p1.x = p1->x; + if (p1->x > view->extents.p2.x) + view->extents.p2.x = p1->x; + if (p2->x < view->extents.p1.x) + view->extents.p1.x = p2->x; + if (p2->x > view->extents.p2.x) + view->extents.p2.x = p2->x; + + if (polygon->num_edges == polygon->size) { + int newsize = 2 * polygon->size; + void *newpolygon; + + newpolygon = g_realloc (polygon, + sizeof (polygon_t) + newsize * sizeof (edge_t)); + if (newpolygon == NULL) + return polygon; + + polygon = newpolygon; + polygon->size = newsize; + + if (polygon->next != NULL) + polygon->next->prev = newpolygon; + if (polygon->prev != NULL) + polygon->prev->next = newpolygon; + else + view->polygons = newpolygon; + } + + polygon->edges[polygon->num_edges].p1 = *p1; + polygon->edges[polygon->num_edges].p2 = *p2; + polygon->edges[polygon->num_edges].top = top; + polygon->edges[polygon->num_edges].bot = bot; + polygon->edges[polygon->num_edges].dir = dir; + polygon->num_edges++; + + return polygon; +} + +static polygon_t * +polygon_new (PolygonView *view) +{ + polygon_t *t; + + t = g_malloc (sizeof (polygon_t) + 128 * sizeof (edge_t)); + t->prev = NULL; + t->next = view->polygons; + if (view->polygons) + view->polygons->prev = t; + view->polygons = t; + + t->size = 128; + t->num_edges = 0; + + return t; +} + +int +main (int argc, char **argv) +{ + PolygonView *view; + polygon_t *polygon = NULL; + GtkWidget *window; + FILE *file; + char *line = NULL; + size_t len = 0; + + gtk_init (&argc, &argv); + + view = g_object_new (polygon_view_get_type (), NULL); + + file = fopen (argv[1], "r"); + if (file != NULL) { + while (getline (&line, &len, file) != -1) { + point_t p1, p2; + double top, bottom; + int dir; + + if (strncmp (line, "polygon: ", sizeof("polygon: ")-1) == 0) { + if (polygon && polygon->num_edges) { + g_print ("read polygon with %d edges\n", polygon->num_edges); + + polygon = polygon_new (view); + } else if (polygon == NULL) + polygon = polygon_new (view); + } else if (sscanf (line, " [%*d] = [(%lf, %lf), (%lf, %lf)], top=%lf, bottom=%lf, dir=%d", &p1.x, &p1.y, &p2.x, &p2.y, &top, &bottom, &dir) == 7) { + polygon = _polygon_add_edge (view, polygon, &p1, &p2, + top, bottom, dir); + } + } + + if (polygon && polygon->num_edges) + g_print ("read polygon with %d edges\n", polygon->num_edges); + + g_print ("extents=(%lg, %lg), (%lg, %lg)\n", + view->extents.p1.x, view->extents.p1.y, + view->extents.p2.x, view->extents.p2.y); + fclose (file); + } + + if (argc > 2) + highlight = atof (argv[2]); + + window = gtk_window_new (GTK_WINDOW_TOPLEVEL); + g_signal_connect (window, "delete-event", + G_CALLBACK (gtk_main_quit), NULL); + gtk_widget_set_size_request (window, 800, 800); + gtk_container_add (GTK_CONTAINER (window), &view->widget); + gtk_widget_show_all (window); + + gtk_main (); + return 0; +} diff --git a/local/recipes/libs/cairo/source/util/show-traps.c b/local/recipes/libs/cairo/source/util/show-traps.c new file mode 100644 index 0000000000..dc1093060a --- /dev/null +++ b/local/recipes/libs/cairo/source/util/show-traps.c @@ -0,0 +1,1312 @@ +#include "config.h" + +#include +#include +#include +#include +#include + +typedef struct _point { + gdouble x, y; +} point_t; +typedef struct _box { + point_t p1, p2; +} box_t; +typedef struct _line { + point_t p1, p2; +} line_t; +typedef struct _trapezoid { + gdouble top, bottom; + line_t left, right; +} trapezoid_t; +typedef struct _traps { + struct _traps *next, *prev; + box_t extents; + int num_traps; + int size; + trapezoid_t traps[0]; +} traps_t; + +typedef struct _edge { + line_t line; + gdouble top, bottom; + point_t p1, p2; + int dir; +} edge_t; +typedef struct _edges { + struct _edges *next, *prev; + box_t extents; + int num_edges; + int size; + edge_t edges[0]; +} edges_t; + +typedef struct _TrapView { + GtkWidget widget; + + struct _TrapView *group_head; + struct _TrapView *group_next; + struct _TrapView *group_prev; + + cairo_surface_t *pixmap; + int pixmap_width, pixmap_height; + + traps_t *traps_list; + traps_t *current_traps; + + edges_t *edges_list; + edges_t *current_edges; + + double px, py; + + gint mag_x, mag_y; + gint mag_size; + gdouble mag_zoom; + gboolean in_mag_drag; + gint mag_drag_x, mag_drag_y; +} TrapView; + +typedef struct _TrapViewClass { + GtkWidgetClass parent_class; +} TrapViewClass; + +G_DEFINE_TYPE (TrapView, trap_view, GTK_TYPE_WIDGET) + +static gdouble +_compute_intersection_x_for_y (const line_t *line, + gdouble y) +{ + gdouble dx = line->p2.x - line->p1.x; + gdouble dy = line->p2.y - line->p1.y; + gdouble x; + + if (y == line->p1.y) + return line->p1.x; + if (y == line->p2.y) + return line->p2.x; + + x = line->p1.x; + if (dy != 0) + x += (y - line->p1.y)*dx/dy; + return x; +} + +static void +_compute_intersection_point (const line_t *line, + gdouble y, + point_t *p) +{ + p->x = _compute_intersection_x_for_y (line, p->y = y); +} + +static cairo_surface_t * +pixmap_create (TrapView *self, cairo_surface_t *target) +{ + cairo_surface_t *surface = cairo_surface_create_similar (target, CAIRO_CONTENT_COLOR, + self->widget.allocation.width, + self->widget.allocation.height); + cairo_t *cr; + traps_t *traps; + edges_t *edges; + gdouble sf_x, sf_y, sf; + gdouble mid, dim; + gdouble x0, y0; + double dash[2] = {8, 8}; + double dots[2] = {0., 1.}; + int n; + box_t extents; + point_t p; + + traps = self->current_traps; + if (traps == NULL) + return surface; + edges = self->current_edges; + + extents = traps->extents; + if (edges != NULL) { + if (edges->extents.p1.x < extents.p1.x) + extents.p1.x = edges->extents.p1.x; + if (edges->extents.p1.y < extents.p1.y) + extents.p1.y = edges->extents.p1.y; + if (edges->extents.p2.x > extents.p2.x) + extents.p2.x = edges->extents.p2.x; + if (edges->extents.p2.y > extents.p2.y) + extents.p2.y = edges->extents.p2.y; + } + + mid = (extents.p2.x + extents.p1.x) / 2.; + dim = (extents.p2.x - extents.p1.x) / 2. * 1.25; + sf_x = self->widget.allocation.width / dim / 2; + + mid = (extents.p2.y + extents.p1.y) / 2.; + dim = (extents.p2.y - extents.p1.y) / 2. * 1.25; + sf_y = self->widget.allocation.height / dim / 2; + + sf = MIN (sf_x, sf_y); + + mid = (extents.p2.x + extents.p1.x) / 2.; + dim = sf_x / sf * (extents.p2.x - extents.p1.x) / 2. * 1.25; + x0 = mid - dim; + mid = (extents.p2.y + extents.p1.y) / 2.; + dim = sf_y / sf * (extents.p2.y - extents.p1.y) / 2. * 1.25; + y0 = mid - dim; + + cr = cairo_create (surface); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_save (cr); + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + cairo_set_source_rgba (cr, 0, 1, 0, .2); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + + _compute_intersection_point (&t->left, t->top, &p); + cairo_move_to (cr, p.x, p.y); + _compute_intersection_point (&t->right, t->top, &p); + cairo_line_to (cr, p.x, p.y); + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + cairo_close_path (cr); + cairo_fill (cr); + } + cairo_restore (cr); + + if (edges == NULL) { + cairo_save (cr); + + /* top, bottom */ + cairo_save (cr); { + cairo_matrix_t m; + cairo_matrix_init_scale (&m, sf, sf); + cairo_matrix_translate (&m, -x0, -y0); + + cairo_set_line_width (cr, 1.); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + + _compute_intersection_point (&t->left, t->top, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_move_to (cr, floor (p.x), floor (p.y) + .5); + cairo_set_dash (cr, dash, 2, fmod (floor (p.x), dash[0] + dash[1])); + + _compute_intersection_point (&t->right, t->top, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_line_to (cr, ceil (p.x), floor (p.y) + .5); + cairo_stroke (cr); + + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_move_to (cr, floor (p.x), floor (p.y) + .5); + cairo_set_dash (cr, dash, 2, fmod (floor (p.x), dash[0] + dash[1])); + + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_line_to (cr, ceil (p.x), floor (p.y) + .5); + cairo_stroke (cr); + } + } cairo_restore (cr); + + /* left extents */ + cairo_save (cr); { + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + cairo_move_to (cr, t->left.p1.x, t->left.p1.y); + cairo_line_to (cr, t->left.p2.x, t->left.p2.y); + } + } cairo_restore (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, 1.); + cairo_set_dash (cr, dash, 2, 0.); + cairo_stroke (cr); + } cairo_restore (cr); + + /* left line */ + cairo_save (cr); { + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + _compute_intersection_point (&t->left, t->top, &p); + cairo_move_to (cr, p.x, p.y); + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + } + } cairo_restore (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_stroke (cr); + } cairo_restore (cr); + + /* right extents */ + cairo_save (cr); { + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + cairo_move_to (cr, t->right.p1.x, t->right.p1.y); + cairo_line_to (cr, t->right.p2.x, t->right.p2.y); + } + } cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_set_line_width (cr, 1.); + cairo_set_dash (cr, dash, 2, 0.); + cairo_stroke (cr); + } cairo_restore (cr); + + /* right line */ + cairo_save (cr); { + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + _compute_intersection_point (&t->right, t->top, &p); + cairo_move_to (cr, p.x, p.y); + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + } cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_stroke (cr); + } cairo_restore (cr); + } + + /* end-points */ + cairo_save (cr); { + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + _compute_intersection_point (&t->left, t->top, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + _compute_intersection_point (&t->right, t->top, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + } + } cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_dash (cr, dots, 2, 0.); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_width (cr, 4.); + cairo_stroke (cr); + } cairo_restore (cr); + + cairo_restore (cr); + } else { + cairo_save (cr); + + for (n = 0; n < edges->num_edges; n++) { + const edge_t *e = &edges->edges[n]; + + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + cairo_move_to (cr, e->p1.x, e->p1.y); + cairo_line_to (cr, e->p2.x, e->p2.y); + } cairo_restore (cr); + + if (e->dir < 0) { + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_set_dash (cr, dash, 2, dash[0]); + } else { + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_dash (cr, dash, 2, 0.); + } + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + + cairo_save (cr); { + cairo_scale (cr, sf, sf); + cairo_translate (cr, -x0, -y0); + cairo_move_to (cr, e->p1.x, e->p1.y); + cairo_close_path (cr); + cairo_move_to (cr, e->p2.x, e->p2.y); + cairo_close_path (cr); + } cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_dash (cr, dots, 2, 0.); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_width (cr, 4.); + cairo_stroke (cr); + } + + cairo_restore (cr); + } + + cairo_destroy (cr); + return surface; +} + +static void +trap_view_draw (TrapView *self, cairo_t *cr) +{ + traps_t *traps; + edges_t *edges; + gdouble sf_x, sf_y, sf; + gdouble mid, dim; + gdouble x0, y0; + double dash[2] = {8, 8}; + int n; + box_t extents; + point_t p; + + if (self->pixmap_width != self->widget.allocation.width || + self->pixmap_height != self->widget.allocation.height) + { + cairo_surface_destroy (self->pixmap); + self->pixmap = pixmap_create (self, cairo_get_target (cr)); + self->pixmap_width = self->widget.allocation.width; + self->pixmap_height = self->widget.allocation.height; + } + + cairo_save (cr); + cairo_set_source_surface (cr, self->pixmap, 0, 0); + cairo_paint (cr); + cairo_restore (cr); + + traps = self->current_traps; + if (traps == NULL) + return; + + extents = traps->extents; + edges = self->current_edges; + if (edges != NULL) { + if (edges->extents.p1.x < extents.p1.x) + extents.p1.x = edges->extents.p1.x; + if (edges->extents.p1.y < extents.p1.y) + extents.p1.y = edges->extents.p1.y; + if (edges->extents.p2.x > extents.p2.x) + extents.p2.x = edges->extents.p2.x; + if (edges->extents.p2.y > extents.p2.y) + extents.p2.y = edges->extents.p2.y; + } + + mid = (extents.p2.x + extents.p1.x) / 2.; + dim = (extents.p2.x - extents.p1.x) / 2. * 1.25; + sf_x = self->widget.allocation.width / dim / 2; + + mid = (extents.p2.y + extents.p1.y) / 2.; + dim = (extents.p2.y - extents.p1.y) / 2. * 1.25; + sf_y = self->widget.allocation.height / dim / 2; + + sf = MIN (sf_x, sf_y); + + mid = (extents.p2.x + extents.p1.x) / 2.; + dim = sf_x / sf * (extents.p2.x - extents.p1.x) / 2. * 1.25; + x0 = mid - dim; + mid = (extents.p2.y + extents.p1.y) / 2.; + dim = sf_y / sf * (extents.p2.y - extents.p1.y) / 2. * 1.25; + y0 = mid - dim; + + cairo_save (cr); + + /* draw a zoom view of the area around the mouse */ + { + double zoom = self->mag_zoom; + int size = self->mag_size; + + cairo_save (cr); + + /* bottom right */ + cairo_rectangle (cr, self->mag_x, self->mag_y, size, size); + cairo_stroke_preserve (cr); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_fill_preserve (cr); + cairo_clip (cr); + + /* compute roi in extents */ + cairo_translate (cr, self->mag_x + size/2, self->mag_y + size/2); + + cairo_save (cr); + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + + _compute_intersection_point (&t->left, t->top, &p); + cairo_move_to (cr, p.x, p.y); + _compute_intersection_point (&t->right, t->top, &p); + cairo_line_to (cr, p.x, p.y); + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + cairo_close_path (cr); + cairo_set_source_rgba (cr, 0, 1, 0, .2); + cairo_fill (cr); + } + cairo_restore (cr); + + cairo_save (cr); { + cairo_matrix_t m; + cairo_matrix_init_scale (&m, zoom, zoom); + cairo_matrix_translate (&m, -(self->px / sf + x0), -(self->py /sf + y0)); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_line_width (cr, 1.); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + + _compute_intersection_point (&t->left, t->top, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_move_to (cr, floor (p.x), floor (p.y) + .5); + cairo_set_dash (cr, dash, 2, fmod (floor (p.x), dash[0] + dash[1])); + + _compute_intersection_point (&t->right, t->top, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_line_to (cr, ceil (p.x), floor (p.y) + .5); + cairo_stroke (cr); + + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_move_to (cr, floor (p.x), floor (p.y) + .5); + cairo_set_dash (cr, dash, 2, fmod (floor (p.x), dash[0] + dash[1])); + + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_matrix_transform_point (&m, &p.x, &p.y); + cairo_line_to (cr, ceil (p.x), floor (p.y) + .5); + cairo_stroke (cr); + } + } cairo_restore (cr); + + cairo_save (cr); { /* left extents */ + cairo_save (cr); { + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + cairo_move_to (cr, t->left.p1.x, t->left.p1.y); + cairo_line_to (cr, t->left.p2.x, t->left.p2.y); + } + } cairo_restore (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, .5); + cairo_set_dash (cr, dash, 2, 0.); + cairo_stroke (cr); + } cairo_restore (cr); + cairo_save (cr); { /* right extents */ + cairo_save (cr); { + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + cairo_move_to (cr, t->right.p1.x, t->right.p1.y); + cairo_line_to (cr, t->right.p2.x, t->right.p2.y); + } + } cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_set_line_width (cr, .5); + cairo_set_dash (cr, dash, 2, 0.); + cairo_stroke (cr); + } cairo_restore (cr); + + cairo_save (cr); { /* left lines */ + cairo_save (cr); + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + _compute_intersection_point (&t->left, t->top, &p); + cairo_move_to (cr, p.x, p.y); + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + } + cairo_restore (cr); + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_stroke (cr); + } cairo_restore (cr); + cairo_save (cr); { /* right lines */ + cairo_save (cr); + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + _compute_intersection_point (&t->right, t->top, &p); + cairo_move_to (cr, p.x, p.y); + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_line_to (cr, p.x, p.y); + } + cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_stroke (cr); + } cairo_restore (cr); + + /* end-points */ + cairo_save (cr); { + double dots[2] = {0., 1.}; + + cairo_save (cr); + cairo_scale (cr, zoom, zoom); + cairo_translate (cr, -(self->px / sf + x0), -(self->py /sf + y0)); + for (n = 0; n < traps->num_traps; n++) { + const trapezoid_t *t = &traps->traps[n]; + _compute_intersection_point (&t->left, t->top, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + _compute_intersection_point (&t->left, t->bottom, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + _compute_intersection_point (&t->right, t->top, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + _compute_intersection_point (&t->right, t->bottom, &p); + cairo_move_to (cr, p.x, p.y); + cairo_close_path (cr); + } + cairo_restore (cr); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_dash (cr, dots, 2, 0.); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_width (cr, 4.); + cairo_stroke (cr); + } cairo_restore (cr); + + /* grid */ + cairo_save (cr); { + int i; + + cairo_translate (cr, + -zoom*fmod (self->px/sf + x0, 1.), + -zoom*fmod (self->py/sf + y0, 1.)); + for (i = -size/2/zoom - 1; i <= size/2/zoom + 1; i++) { + cairo_move_to (cr, zoom*i, -size/2); + cairo_line_to (cr, zoom*i, size/2 + zoom); + cairo_move_to (cr, -size/2, zoom*i); + cairo_line_to (cr, size/2 + zoom, zoom*i); + } + cairo_set_source_rgba (cr, .7, .7, .7, .5); + cairo_set_line_width (cr, 1.); + cairo_stroke (cr); + } cairo_restore (cr); + } + + cairo_restore (cr); +} + +static gdouble +trapezoid_area (const trapezoid_t *t) +{ + gdouble inner_left, inner_right; + gdouble outer_left, outer_right; + gdouble height; + gdouble area; + + /* split into 3 sections: a rectangle with a pair of triangular bookends */ + inner_left = _compute_intersection_x_for_y (&t->left, t->top); + outer_left = _compute_intersection_x_for_y (&t->left, t->bottom); + if (outer_left > inner_left) { + gdouble t = outer_left; + outer_left = inner_left; + inner_left = t; + } + + inner_right = _compute_intersection_x_for_y (&t->right, t->top); + outer_right = _compute_intersection_x_for_y (&t->right, t->bottom); + if (outer_right > inner_right) { + gdouble t = outer_right; + outer_right = inner_right; + inner_right = t; + } + + if (outer_left > outer_right) { /* reverse */ + gdouble t; + + t = outer_left; + outer_left = inner_right; + inner_right = t; + + t = inner_left; + inner_left = outer_right; + outer_right = t; + } + + height = t->bottom - t->top; + area = (inner_left - outer_left) * height / 2; + area += (outer_right - inner_right) * height / 2; + area += (inner_right - inner_left) * height; + + return area; +} + +static gdouble +traps_compute_total_area (const traps_t *traps) +{ + int n; + gdouble area = 0.; + for (n = 0; n < traps->num_traps; n++) + area += trapezoid_area (&traps->traps[n]); + return area; +} + +static void +trap_view_draw_labels (TrapView *self, cairo_t *cr) +{ + PangoLayout *layout; + gint width, height; + gdouble total_area; + gchar *str; + traps_t *traps; + + traps = self->current_traps; + if (traps == NULL) + return; + + /* convert total area from fixed-point (assuming 24.8) */ + total_area = traps_compute_total_area (traps) / (256. * 256.); + str = g_strdup_printf ("Number of trapezoids:\t%d\n" + "Total area of trapezoids:\t%.2f", + traps->num_traps, + total_area); + layout = gtk_widget_create_pango_layout (&self->widget, str); + g_free (str); + + pango_layout_get_pixel_size (layout, &width, &height); + + cairo_move_to (cr, 10, 10 + height); + pango_cairo_show_layout (cr, layout); + g_object_unref (layout); +} + +static gboolean +trap_view_expose (GtkWidget *w, GdkEventExpose *ev) +{ + TrapView *self = (TrapView *) w; + cairo_t *cr; + + cr = gdk_cairo_create (w->window); + gdk_cairo_region (cr, ev->region); + cairo_clip (cr); + + trap_view_draw (self, cr); + trap_view_draw_labels (self, cr); + + cairo_destroy (cr); + return FALSE; +} + +static void +trap_view_advance (TrapView *self) +{ + if (self->current_traps && self->current_traps->prev) + self->current_traps = self->current_traps->prev; + if (self->current_edges && self->current_edges->prev) + self->current_edges = self->current_edges->prev; + self->pixmap_width = self->pixmap_height = 0; + gtk_widget_queue_draw (&self->widget); +} + +static void +trap_view_back (TrapView *self) +{ + if (self->current_traps && self->current_traps->next) + self->current_traps = self->current_traps->next; + if (self->current_edges && self->current_edges->next) + self->current_edges = self->current_edges->next; + self->pixmap_width = self->pixmap_height = 0; + gtk_widget_queue_draw (&self->widget); +} + +static void +trap_view_group_foreach (TrapView *group, GFunc func, gpointer data) +{ + while (group) { + func (group, data); + group = group->group_next; + } +} + +static gboolean +trap_view_key_press (GtkWidget *w, GdkEventKey *ev) +{ + TrapView *self = (TrapView *) w; + + switch (ev->keyval) { + case GDK_BackSpace: + trap_view_group_foreach (self->group_head, + (GFunc) trap_view_back, + NULL); + break; + + case GDK_space: + trap_view_group_foreach (self->group_head, + (GFunc) trap_view_advance, + NULL); + break; + + case GDK_Return: + trap_view_group_foreach (self->group_head, + (GFunc) trap_view_advance, + NULL); + break; + + case GDK_Escape: + case GDK_Q: + gtk_main_quit (); + break; + } + + return FALSE; +} + +static gboolean +trap_view_button_press (GtkWidget *w, GdkEventButton *ev) +{ + TrapView *self = (TrapView *) w; + + if (ev->x < self->mag_x || + ev->y < self->mag_y || + ev->x > self->mag_x + self->mag_size || + ev->y > self->mag_y + self->mag_size) + { + if (ev->type == GDK_BUTTON_PRESS) { + if (self->current_traps == NULL) + return FALSE; + + if (ev->button == 1) { + trap_view_group_foreach (self->group_head, + (GFunc) trap_view_advance, + NULL); + } else if (ev->button == 3) { + trap_view_group_foreach (self->group_head, + (GFunc) trap_view_back, + NULL); + } + } + } + else + { + self->in_mag_drag = TRUE; + self->mag_drag_x = ev->x; + self->mag_drag_y = ev->y; + } + + return FALSE; +} + +static gboolean +trap_view_button_release (GtkWidget *w, GdkEventButton *ev) +{ + TrapView *self = (TrapView *) w; + + self->in_mag_drag = FALSE; + + return FALSE; +} + +static void +trap_view_update_mouse (TrapView *self, GdkEventMotion *ev) +{ + self->px = ev->x; + self->py = ev->y; + + gtk_widget_queue_draw (&self->widget); +} + +static void +trap_view_update_magnifier (TrapView *self, gint *xy) +{ + self->mag_x = xy[0]; + self->mag_y = xy[1]; + + gtk_widget_queue_draw (&self->widget); +} + +static gboolean +trap_view_motion (GtkWidget *w, GdkEventMotion *ev) +{ + TrapView *self = (TrapView *) w; + + if (self->in_mag_drag) { + int xy[2]; + + xy[0] = self->mag_x + ev->x - self->mag_drag_x; + xy[1] = self->mag_y + ev->y - self->mag_drag_y; + + trap_view_group_foreach (self->group_head, + (GFunc) trap_view_update_magnifier, + xy); + + self->mag_drag_x = ev->x; + self->mag_drag_y = ev->y; + } else if (ev->x < self->mag_x || + ev->y < self->mag_y || + ev->x > self->mag_x + self->mag_size || + ev->y > self->mag_y + self->mag_size) + { + trap_view_group_foreach (self->group_head, + (GFunc) trap_view_update_mouse, + ev); + } + + return FALSE; +} + +static void +trap_view_realize (GtkWidget *widget) +{ + GdkWindowAttr attributes; + + GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); + + attributes.window_type = GDK_WINDOW_CHILD; + attributes.x = widget->allocation.x; + attributes.y = widget->allocation.y; + attributes.width = widget->allocation.width; + attributes.height = widget->allocation.height; + attributes.wclass = GDK_INPUT_OUTPUT; + attributes.visual = gtk_widget_get_visual (widget); + attributes.colormap = gtk_widget_get_colormap (widget); + attributes.event_mask = gtk_widget_get_events (widget) | + GDK_BUTTON_PRESS_MASK | + GDK_BUTTON_RELEASE_MASK | + GDK_KEY_PRESS_MASK | + GDK_KEY_RELEASE_MASK | + GDK_POINTER_MOTION_MASK | + GDK_BUTTON_MOTION_MASK | + GDK_EXPOSURE_MASK; + + widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), + &attributes, + GDK_WA_X | GDK_WA_Y | + GDK_WA_VISUAL | GDK_WA_COLORMAP); + gdk_window_set_user_data (widget->window, widget); + + widget->style = gtk_style_attach (widget->style, widget->window); + gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL); +} + +static void +trap_view_size_allocate (GtkWidget *w, GdkRectangle *r) +{ + TrapView *self = (TrapView *) w; + + GTK_WIDGET_CLASS (trap_view_parent_class)->size_allocate (w, r); + + self->mag_x = w->allocation.width - self->mag_size - 10; + self->mag_y = w->allocation.height - self->mag_size - 10; +} + +static void +trap_view_finalize (GObject *obj) +{ + G_OBJECT_CLASS (trap_view_parent_class)->finalize (obj); +} + +static void +trap_view_class_init (TrapViewClass *klass) +{ + GObjectClass *object_class = (GObjectClass *) klass; + GtkWidgetClass *widget_class = (GtkWidgetClass *) klass; + + object_class->finalize = trap_view_finalize; + + widget_class->realize = trap_view_realize; + widget_class->size_allocate = trap_view_size_allocate; + widget_class->expose_event = trap_view_expose; + widget_class->key_press_event = trap_view_key_press; + widget_class->button_press_event = trap_view_button_press; + widget_class->button_release_event = trap_view_button_release; + widget_class->motion_notify_event = trap_view_motion; +} + +static void +trap_view_init (TrapView *self) +{ + self->mag_zoom = 10; + self->mag_size = 200; + + GTK_WIDGET_SET_FLAGS (self, GTK_CAN_FOCUS); +} + +static traps_t * +_traps_add_trapezoid (TrapView *tv, traps_t *traps, const trapezoid_t *trap) +{ + if (trap->top < traps->extents.p1.y) + traps->extents.p1.y = trap->top; + if (trap->bottom > traps->extents.p2.y) + traps->extents.p2.y = trap->bottom; + + if (trap->left.p1.x < traps->extents.p1.x) + traps->extents.p1.x = trap->left.p1.x; + if (trap->left.p2.x < traps->extents.p1.x) + traps->extents.p1.x = trap->left.p2.x; + + if (trap->right.p1.x > traps->extents.p2.x) + traps->extents.p2.x = trap->right.p1.x; + if (trap->right.p2.x > traps->extents.p2.x) + traps->extents.p2.x = trap->right.p2.x; + + if (traps->num_traps == traps->size) { + int newsize = 2 * traps->size; + void *newtraps; + + newtraps = g_realloc (traps, + sizeof (traps_t) + newsize * sizeof (trapezoid_t)); + if (newtraps == NULL) + return traps; + + if (tv->current_traps == traps) + tv->current_traps = newtraps; + + traps = newtraps; + traps->size = newsize; + + if (traps->next != NULL) + traps->next->prev = newtraps; + if (traps->prev != NULL) + traps->prev->next = newtraps; + else + tv->traps_list = newtraps; + } + + traps->traps[traps->num_traps++] = *trap; + + return traps; +} + +static traps_t * +traps_new (TrapView *tv) +{ + traps_t *t; + + t = g_malloc (sizeof (traps_t) + 16 * sizeof (trapezoid_t)); + t->prev = NULL; + t->next = tv->traps_list; + if (tv->traps_list) + tv->traps_list->prev = t; + tv->traps_list = t; + + if (tv->current_traps == NULL) + tv->current_traps = t; + + t->size = 16; + t->num_traps = 0; + t->extents.p1.x = G_MAXDOUBLE; + t->extents.p1.y = G_MAXDOUBLE; + t->extents.p2.x = -G_MAXDOUBLE; + t->extents.p2.y = -G_MAXDOUBLE; + + return t; +} + +static edges_t * +_edges_add_edge (TrapView *tv, edges_t *edges, edge_t *e) +{ + if (e->top < edges->extents.p1.y) + edges->extents.p1.y = e->top; + if (e->bottom > edges->extents.p2.y) + edges->extents.p2.y = e->bottom; + + _compute_intersection_point (&e->line, e->top, &e->p1); + _compute_intersection_point (&e->line, e->bottom, &e->p2); + + if (e->p1.x < edges->extents.p1.x) + edges->extents.p1.x = e->p1.x; + if (e->p2.x < edges->extents.p1.x) + edges->extents.p1.x = e->p2.x; + + if (e->p1.x > edges->extents.p2.x) + edges->extents.p2.x = e->p1.x; + if (e->p2.x > edges->extents.p2.x) + edges->extents.p2.x = e->p2.x; + + if (edges->num_edges == edges->size) { + int newsize = 2 * edges->size; + void *newedges; + + newedges = g_realloc (edges, + sizeof (edges_t) + newsize * sizeof (edge_t)); + if (newedges == NULL) + return edges; + + if (tv->current_edges == edges) + tv->current_edges = newedges; + + edges = newedges; + edges->size = newsize; + + if (edges->next != NULL) + edges->next->prev = newedges; + if (edges->prev != NULL) + edges->prev->next = newedges; + else + tv->edges_list = newedges; + } + + edges->edges[edges->num_edges++] = *e; + + return edges; +} + +static edges_t * +edges_new (TrapView *tv) +{ + edges_t *t; + + t = g_malloc (sizeof (edges_t) + 16 * sizeof (edge_t)); + t->prev = NULL; + t->next = tv->edges_list; + if (tv->edges_list) + tv->edges_list->prev = t; + tv->edges_list = t; + + if (tv->current_edges == NULL) + tv->current_edges = t; + + t->size = 16; + t->num_edges = 0; + t->extents.p1.x = G_MAXDOUBLE; + t->extents.p1.y = G_MAXDOUBLE; + t->extents.p2.x = -G_MAXDOUBLE; + t->extents.p2.y = -G_MAXDOUBLE; + + return t; +} + +int +main (int argc, char **argv) +{ + TrapView *tv, *group_head = NULL, *group_prev = NULL; + GtkWidget *window, *hbox; + FILE *file; + + gtk_init (&argc, &argv); + + hbox = gtk_hbox_new (TRUE, 0); + + file = fopen (argv[1], "r"); + if (file != NULL) { + char *line = NULL; + size_t len = 0; + traps_t *traps; + + tv = g_object_new (trap_view_get_type (), NULL); + gtk_box_pack_start (GTK_BOX (hbox), &tv->widget, TRUE, TRUE, 0); + gtk_widget_show (&tv->widget); + + tv->group_prev = group_prev; + tv->group_next = NULL; + if (group_prev) + group_prev->group_next = tv; + group_prev = tv; + if (group_head == NULL) + group_head = tv; + tv->group_head = group_head; + + traps = traps_new (tv); + while (getline (&line, &len, file) != -1) { + trapezoid_t t; + + if (sscanf (line, + "%lf %lf L:(%lf, %lf), (%lf, %lf) R:(%lf, %lf), (%lf, %lf)", + &t.top, &t.bottom, + &t.left.p1.x, &t.left.p1.y, + &t.left.p2.x, &t.left.p2.y, + &t.right.p1.x, &t.right.p1.y, + &t.right.p2.x, &t.right.p2.y) == 10) { + traps = _traps_add_trapezoid (tv, traps, &t); + } else { + if (traps->num_traps) { + g_print ("read %d trapezoids\n", traps->num_traps); + g_print ("extents=(%lg, %lg), (%lg, %lg)\n", + traps->extents.p1.x, traps->extents.p1.y, + traps->extents.p2.x, traps->extents.p2.y); + traps = traps_new (tv); + } + } + } + free (line); + fclose (file); + + if (traps->num_traps) { + g_print ("read %d trapezoids\n", traps->num_traps); + g_print ("extents=(%lg, %lg), (%lg, %lg)\n", + traps->extents.p1.x, traps->extents.p1.y, + traps->extents.p2.x, traps->extents.p2.y); + } + } + + file = fopen (argv[2], "r"); + if (file != NULL) { + char *line = NULL; + size_t len = 0; + traps_t *traps; + + tv = g_object_new (trap_view_get_type (), NULL); + gtk_box_pack_start (GTK_BOX (hbox), &tv->widget, TRUE, TRUE, 0); + gtk_widget_show (&tv->widget); + + tv->group_prev = group_prev; + tv->group_next = NULL; + if (group_prev) + group_prev->group_next = tv; + group_prev = tv; + if (group_head == NULL) + group_head = tv; + tv->group_head = group_head; + + traps = traps_new (tv); + while (getline (&line, &len, file) != -1) { + trapezoid_t t; + + if (sscanf (line, + "%lf %lf L:(%lf, %lf), (%lf, %lf) R:(%lf, %lf), (%lf, %lf)", + &t.top, &t.bottom, + &t.left.p1.x, &t.left.p1.y, + &t.left.p2.x, &t.left.p2.y, + &t.right.p1.x, &t.right.p1.y, + &t.right.p2.x, &t.right.p2.y) == 10) { + traps = _traps_add_trapezoid (tv, traps, &t); + } else { + if (traps->num_traps) { + g_print ("read %d trapezoids\n", traps->num_traps); + g_print ("extents=(%lg, %lg), (%lg, %lg)\n", + traps->extents.p1.x, traps->extents.p1.y, + traps->extents.p2.x, traps->extents.p2.y); + traps = traps_new (tv); + } + } + } + free (line); + fclose (file); + + if (traps->num_traps) { + g_print ("read %d trapezoids\n", traps->num_traps); + g_print ("extents=(%lg, %lg), (%lg, %lg)\n", + traps->extents.p1.x, traps->extents.p1.y, + traps->extents.p2.x, traps->extents.p2.y); + } + } + +#if 1 + if (argc >=4) { + file = fopen (argv[3], "r"); + if (file != NULL) { + char *line = NULL; + size_t len = 0; + edges_t *edges; + + edges = edges_new (tv); + while (getline (&line, &len, file) != -1) { + edge_t e; + + if (sscanf (line, + "(%lf, %lf), (%lf, %lf) %lf %lf %d", + &e.line.p1.x, &e.line.p1.y, + &e.line.p2.x, &e.line.p2.y, + &e.top, &e.bottom, + &e.dir) == 7) { + edges = _edges_add_edge (tv, edges, &e); + } else { + if (edges->num_edges) { + g_print ("read %d edges\n", edges->num_edges); + g_print ("extents=(%lg, %lg), (%lg, %lg)\n", + edges->extents.p1.x, edges->extents.p1.y, + edges->extents.p2.x, edges->extents.p2.y); + edges = edges_new (tv); + } + } + } + free (line); + fclose (file); + + if (edges->num_edges) { + g_print ("read %d edges\n", edges->num_edges); + g_print ("extents=(%lg, %lg), (%lg, %lg)\n", + edges->extents.p1.x, edges->extents.p1.y, + edges->extents.p2.x, edges->extents.p2.y); + } + } + } +#else + if (argc >= 4) { + file = fopen (argv[3], "r"); + if (file != NULL) { + char *line = NULL; + size_t len = 0; + traps_t *traps; + + tv = g_object_new (trap_view_get_type (), NULL); + gtk_box_pack_start (GTK_BOX (hbox), &tv->widget, TRUE, TRUE, 0); + gtk_widget_show (&tv->widget); + + tv->group_prev = group_prev; + tv->group_next = NULL; + if (group_prev) + group_prev->group_next = tv; + group_prev = tv; + if (group_head == NULL) + group_head = tv; + tv->group_head = group_head; + + traps = traps_new (tv); + while (getline (&line, &len, file) != -1) { + trapezoid_t t; + + if (sscanf (line, + "%lf %lf L:(%lf, %lf), (%lf, %lf) R:(%lf, %lf), (%lf, %lf)", + &t.top, &t.bottom, + &t.left.p1.x, &t.left.p1.y, + &t.left.p2.x, &t.left.p2.y, + &t.right.p1.x, &t.right.p1.y, + &t.right.p2.x, &t.right.p2.y) == 10) { + traps = _traps_add_trapezoid (tv, traps, &t); + } else { + if (traps->num_traps) { + g_print ("read %d trapezoids\n", traps->num_traps); + g_print ("extents=(%lg, %lg), (%lg, %lg)\n", + traps->extents.p1.x, traps->extents.p1.y, + traps->extents.p2.x, traps->extents.p2.y); + traps = traps_new (tv); + } + } + } + free (line); + fclose (file); + + if (traps->num_traps) { + g_print ("read %d trapezoids\n", traps->num_traps); + g_print ("extents=(%lg, %lg), (%lg, %lg)\n", + traps->extents.p1.x, traps->extents.p1.y, + traps->extents.p2.x, traps->extents.p2.y); + } + } + } +#endif + + window = gtk_window_new (GTK_WINDOW_TOPLEVEL); + g_signal_connect (window, "delete-event", + G_CALLBACK (gtk_main_quit), NULL); + gtk_widget_set_size_request (window, 512, 512); + gtk_container_add (GTK_CONTAINER (window), hbox); + gtk_widget_show (hbox); + gtk_widget_show (window); + + gtk_main (); + return 0; +} diff --git a/local/recipes/libs/cairo/source/util/waterfall b/local/recipes/libs/cairo/source/util/waterfall new file mode 100755 index 0000000000..5a683c59b1 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/waterfall @@ -0,0 +1,97 @@ +#!/usr/bin/python + +import sys +import cairo +import pygtk +pygtk.require('2.0') +import gtk +import gtk.gdk +import pango +import gobject + +class CairoView(gtk.Window): + def __init__(self, family="", slant=0, weight=0, size=18, text="the quick brown fox jumps over the lazy dog! THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG?"): + gtk.Widget.__init__ (self) + + self.family = family + if slant == "italic": + self.slant = cairo.FONT_SLANT_ITALIC + elif slant == "oblique": + self.slant = cairo.FONT_SLANT_OBLIQUE + else: + self.slant = cairo.FONT_SLANT_NORMAL + if weight == "bold": + self.weight = cairo.FONT_WEIGHT_BOLD + else: + self.weight = cairo.FONT_WEIGHT_NORMAL + self.size = float (size) + self.text = text + + def do_realize(self): + self.set_flags(self.flags() | gtk.REALIZED) + + self.window = gtk.gdk.Window( + self.get_parent_window(), + width=self.allocation.width, + height=self.allocation.height, + window_type=gtk.gdk.WINDOW_CHILD, + wclass=gtk.gdk.INPUT_OUTPUT, + event_mask=self.get_events() | gtk.gdk.EXPOSURE_MASK) + + self.window.set_user_data(self) + + self.style.attach(self.window) + + self.style.set_background(self.window, gtk.STATE_NORMAL) + + self.window.move_resize(0, 0, 1000, 1000) + + def do_unrealize(self): + self.window.destroy() + + def do_expose_event(self, event): + self.draw (event) + + return False + + def draw(self, event = None): + + cr = self.window.cairo_create() + if event: + cr.rectangle(event.area.x, event.area.y, + event.area.width, event.area.height) + cr.clip() + + cr.set_source_rgb (1, 1, 1) + cr.paint () + cr.set_source_rgb (0, 0, 0) + + cr.select_font_face (self.family, self.slant, self.weight) + + for size in range (1, 60): + cr.set_font_size (size) + extents = cr.text_extents (self.text) + cr.move_to (-extents[0], -extents[1]) + cr.show_text (self.text) + cr.translate (0, extents[3]) + + def run(self): + + self.props.allow_shrink = True + self.connect("destroy", gtk.main_quit) + self.show() + + gtk.main() + +gobject.type_register(CairoView) + +def main(args): + + if len (args) == 1: + print "usage: cairo-view family [slant [weight [size [text]]]]" + sys.exit (1) + cv= CairoView (*args[1:]) + cv.run() + +if __name__ == "__main__": + main(sys.argv) diff --git a/local/recipes/libs/cairo/source/util/xr2cairo b/local/recipes/libs/cairo/source/util/xr2cairo new file mode 100755 index 0000000000..c749aa4fd8 --- /dev/null +++ b/local/recipes/libs/cairo/source/util/xr2cairo @@ -0,0 +1,49 @@ +#!/bin/sh +set -e + +if [ $# -lt 1 ]; then + argv0=`basename $0` + echo "$argv0: Convert source code written for Xr to use Cairo instead." >&2 + echo "" >&2 + echo "Usage: $argv0 file [...]" >&2 + exit 1 +fi + +xr2cairo() { + file=$1 + backup=$file.xr + + if [ -e $backup ]; then + echo "Warning: Backup file $backup already exists --- not backing up this time." >&2 + else + cp $file $backup + fi + sed -e ' + s/\(Xr[a-zA-Z]*\)RGB/\1Rgb/g + s/\(Xr[a-zA-Z]*\)NextTo/\1Similar/g + + s/Xr\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)/\Lcairo_\1_\2_\3_\4_\5\E/g + s/Xr\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)/\Lcairo_\1_\2_\3_\4\E/g + s/Xr\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)/\Lcairo_\1_\2_\3\E/g + s/Xr\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z0-9]\+\)/\Lcairo_\1_\2\E/g + s/Xr\([A-Z]\+[a-z]\+\)/\Lcairo_\1\E/g + + s/\(cairo_\(operator\|status\|fill_rule\|line_cap\|line_join\|filter\|format\)_[a-z0-9_]\{2,\}\)/\U\1/g + + s/cairo_\(fill_rule\|line_cap\|line_join\|format\|operator\|status\|filter\|surface\|matrix\)$/cairo_\1_t/g + s/cairo_\(fill_rule\|line_cap\|line_join\|format\|operator\|status\|filter\|surface\|matrix\)\([^_]\)/cairo_\1_t\2/g + s/_cairo_\(fill_rule\|line_cap\|line_join\|format\|operator\|status\|filter\|surface\|matrix\)_t/cairo_\1/g + s/cairo_state/cairo_t/g + s/_cairo_t\([^a-zA-Z0-9_]\)/cairo\1/g + + s/Xr\.h/cairo.h/g + + ' $backup > $file +} + +while [ $# -gt 0 ]; do + file=$1 + shift + xr2cairo $file +done + diff --git a/local/recipes/libs/cairo/source/version.py b/local/recipes/libs/cairo/source/version.py new file mode 100755 index 0000000000..aabc20593b --- /dev/null +++ b/local/recipes/libs/cairo/source/version.py @@ -0,0 +1,53 @@ +#!/usr/bin/env python3 +# +# cairo version.py +# +# Extracts the version from cairo-version.h for the meson build files. +# +import os +import re +import sys + + +MAJOR_RE = re.compile( + r'^\s*#\s*define\s+CAIRO_VERSION_MAJOR\s+(?P[0-9]+)\s*$', + re.UNICODE) + +MINOR_RE = re.compile( + r'^\s*#\s*define\s+CAIRO_VERSION_MINOR\s+(?P[0-9]+)\s*$', + re.UNICODE) + +MICRO_RE = re.compile( + r'^\s*#\s*define\s+CAIRO_VERSION_MICRO\s+(?P[0-9]+)\s*$', + re.UNICODE) + +version_major = None +version_minor = None +version_micro = None + +srcroot = os.path.dirname(__file__) +version_h = os.path.join(srcroot, "src", "cairo-version.h") + +with open(version_h, "r", encoding="utf-8") as f: + for line in f: + res = MAJOR_RE.match(line) + if res: + assert version_major is None + version_major = res.group('number') + continue + res = MINOR_RE.match(line) + if res: + assert version_minor is None + version_minor = res.group('number') + continue + res = MICRO_RE.match(line) + if res: + assert version_micro is None + version_micro = res.group('number') + continue + +if not (version_major and version_minor and version_micro): + print(f"ERROR: Could not extract version from cairo-version.h in {srcroot}", file=sys.stderr) # noqa + sys.exit(-1) + +print(f"{version_major}.{version_minor}.{version_micro}")